cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1 | /* |
| 2 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3 | % % |
| 4 | % % |
| 5 | % % |
| 6 | % PPPP N N GGGG % |
| 7 | % P P NN N G % |
| 8 | % PPPP N N N G GG % |
| 9 | % P N NN G G % |
| 10 | % P N N GGG % |
| 11 | % % |
| 12 | % % |
| 13 | % Read/Write Portable Network Graphics Image Format % |
| 14 | % % |
| 15 | % Software Design % |
cristy | de984cd | 2013-12-01 14:49:27 +0000 | [diff] [blame] | 16 | % Cristy % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 17 | % Glenn Randers-Pehrson % |
| 18 | % November 1997 % |
| 19 | % % |
| 20 | % % |
Cristy | 7ce65e7 | 2015-12-12 18:03:16 -0500 | [diff] [blame] | 21 | % Copyright 1999-2016 ImageMagick Studio LLC, a non-profit organization % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 22 | % dedicated to making software imaging solutions freely available. % |
| 23 | % % |
| 24 | % You may not use this file except in compliance with the License. You may % |
| 25 | % obtain a copy of the License at % |
| 26 | % % |
| 27 | % http://www.imagemagick.org/script/license.php % |
| 28 | % % |
| 29 | % Unless required by applicable law or agreed to in writing, software % |
| 30 | % distributed under the License is distributed on an "AS IS" BASIS, % |
| 31 | % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % |
| 32 | % See the License for the specific language governing permissions and % |
| 33 | % limitations under the License. % |
| 34 | % % |
| 35 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 36 | % |
| 37 | % |
| 38 | */ |
| 39 | |
| 40 | |
| 41 | /* |
| 42 | Include declarations. |
| 43 | */ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 44 | #include "MagickCore/studio.h" |
| 45 | #include "MagickCore/artifact.h" |
| 46 | #include "MagickCore/attribute.h" |
| 47 | #include "MagickCore/blob.h" |
| 48 | #include "MagickCore/blob-private.h" |
| 49 | #include "MagickCore/cache.h" |
cristy | aa2c16c | 2012-03-25 22:21:35 +0000 | [diff] [blame] | 50 | #include "MagickCore/channel.h" |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 51 | #include "MagickCore/color.h" |
| 52 | #include "MagickCore/color-private.h" |
| 53 | #include "MagickCore/colormap.h" |
| 54 | #include "MagickCore/colorspace.h" |
| 55 | #include "MagickCore/colorspace-private.h" |
| 56 | #include "MagickCore/constitute.h" |
| 57 | #include "MagickCore/enhance.h" |
| 58 | #include "MagickCore/exception.h" |
| 59 | #include "MagickCore/exception-private.h" |
| 60 | #include "MagickCore/geometry.h" |
| 61 | #include "MagickCore/histogram.h" |
| 62 | #include "MagickCore/image.h" |
| 63 | #include "MagickCore/image-private.h" |
| 64 | #include "MagickCore/layer.h" |
| 65 | #include "MagickCore/list.h" |
| 66 | #include "MagickCore/log.h" |
| 67 | #include "MagickCore/MagickCore.h" |
| 68 | #include "MagickCore/memory_.h" |
| 69 | #include "MagickCore/module.h" |
| 70 | #include "MagickCore/monitor.h" |
| 71 | #include "MagickCore/monitor-private.h" |
| 72 | #include "MagickCore/option.h" |
| 73 | #include "MagickCore/pixel.h" |
| 74 | #include "MagickCore/pixel-accessor.h" |
| 75 | #include "MagickCore/profile.h" |
| 76 | #include "MagickCore/property.h" |
| 77 | #include "MagickCore/quantum-private.h" |
| 78 | #include "MagickCore/resource_.h" |
| 79 | #include "MagickCore/semaphore.h" |
| 80 | #include "MagickCore/quantum-private.h" |
| 81 | #include "MagickCore/static.h" |
| 82 | #include "MagickCore/statistic.h" |
| 83 | #include "MagickCore/string_.h" |
| 84 | #include "MagickCore/string-private.h" |
| 85 | #include "MagickCore/transform.h" |
| 86 | #include "MagickCore/utility.h" |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 87 | #if defined(MAGICKCORE_PNG_DELEGATE) |
glennrp | 286a635 | 2009-11-09 02:58:50 +0000 | [diff] [blame] | 88 | |
glennrp | 7ef138c | 2009-11-10 13:50:20 +0000 | [diff] [blame] | 89 | /* Suppress libpng pedantic warnings that were added in |
| 90 | * libpng-1.2.41 and libpng-1.4.0. If you are working on |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 91 | * migration to libpng-1.5, remove these defines and then |
glennrp | 7ef138c | 2009-11-10 13:50:20 +0000 | [diff] [blame] | 92 | * fix any code that generates warnings. |
| 93 | */ |
glennrp | 991e92a | 2010-01-28 03:09:00 +0000 | [diff] [blame] | 94 | /* #define PNG_DEPRECATED Use of this function is deprecated */ |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 95 | /* #define PNG_USE_RESULT The result of this function must be checked */ |
| 96 | /* #define PNG_NORETURN This function does not return */ |
| 97 | /* #define PNG_ALLOCATED The result of the function is new memory */ |
glennrp | 8371ecc | 2011-02-19 19:15:38 +0000 | [diff] [blame] | 98 | /* #define PNG_DEPSTRUCT Access to this struct member is deprecated */ |
glennrp | 5b92734 | 2011-04-14 14:31:48 +0000 | [diff] [blame] | 99 | |
| 100 | /* PNG_PTR_NORETURN does not work on some platforms, in libpng-1.5.x */ |
cristy | 75cfe70 | 2011-04-14 14:27:17 +0000 | [diff] [blame] | 101 | #define PNG_PTR_NORETURN |
glennrp | 286a635 | 2009-11-09 02:58:50 +0000 | [diff] [blame] | 102 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 103 | #include "png.h" |
| 104 | #include "zlib.h" |
| 105 | |
| 106 | /* ImageMagick differences */ |
| 107 | #define first_scene scene |
| 108 | |
glennrp | d5045b4 | 2010-03-24 12:40:35 +0000 | [diff] [blame] | 109 | #if PNG_LIBPNG_VER > 10011 |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 110 | /* |
| 111 | Optional declarations. Define or undefine them as you like. |
| 112 | */ |
| 113 | /* #define PNG_DEBUG -- turning this on breaks VisualC compiling */ |
| 114 | |
| 115 | /* |
| 116 | Features under construction. Define these to work on them. |
| 117 | */ |
| 118 | #undef MNG_OBJECT_BUFFERS |
| 119 | #undef MNG_BASI_SUPPORTED |
| 120 | #define MNG_COALESCE_LAYERS /* In 5.4.4, this interfered with MMAP'ed files. */ |
| 121 | #define MNG_INSERT_LAYERS /* Troublesome, but seem to work as of 5.4.4 */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 122 | #if defined(MAGICKCORE_JPEG_DELEGATE) |
| 123 | # define JNG_SUPPORTED /* Not finished as of 5.5.2. See "To do" comments. */ |
| 124 | #endif |
| 125 | #if !defined(RGBColorMatchExact) |
| 126 | #define IsPNGColorEqual(color,target) \ |
glennrp | 8e045c8 | 2011-04-27 16:40:27 +0000 | [diff] [blame] | 127 | (((color).red == (target).red) && \ |
| 128 | ((color).green == (target).green) && \ |
| 129 | ((color).blue == (target).blue)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 130 | #endif |
| 131 | |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 132 | /* Table of recognized sRGB ICC profiles */ |
| 133 | struct sRGB_info_struct |
| 134 | { |
| 135 | png_uint_32 len; |
| 136 | png_uint_32 crc; |
| 137 | png_byte intent; |
| 138 | }; |
| 139 | |
| 140 | const struct sRGB_info_struct sRGB_info[] = |
glennrp | 6647b97 | 2015-01-12 04:39:14 +0000 | [diff] [blame] | 141 | { |
glennrp | c241d3c | 2013-05-15 04:24:40 +0000 | [diff] [blame] | 142 | /* ICC v2 perceptual sRGB_IEC61966-2-1_black_scaled.icc */ |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 143 | { 3048, 0x3b8772b9UL, 0}, |
| 144 | |
glennrp | c241d3c | 2013-05-15 04:24:40 +0000 | [diff] [blame] | 145 | /* ICC v2 relative sRGB_IEC61966-2-1_no_black_scaling.icc */ |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 146 | { 3052, 0x427ebb21UL, 1}, |
| 147 | |
glennrp | c241d3c | 2013-05-15 04:24:40 +0000 | [diff] [blame] | 148 | /* ICC v4 perceptual sRGB_v4_ICC_preference_displayclass.icc */ |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 149 | {60988, 0x306fd8aeUL, 0}, |
| 150 | |
glennrp | c241d3c | 2013-05-15 04:24:40 +0000 | [diff] [blame] | 151 | /* ICC v4 perceptual sRGB_v4_ICC_preference.icc perceptual */ |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 152 | {60960, 0xbbef7812UL, 0}, |
| 153 | |
glennrp | c241d3c | 2013-05-15 04:24:40 +0000 | [diff] [blame] | 154 | /* HP? sRGB v2 media-relative sRGB_IEC61966-2-1_noBPC.icc */ |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 155 | { 3024, 0x5d5129ceUL, 1}, |
| 156 | |
| 157 | /* HP-Microsoft sRGB v2 perceptual */ |
| 158 | { 3144, 0x182ea552UL, 0}, |
| 159 | |
| 160 | /* HP-Microsoft sRGB v2 media-relative */ |
| 161 | { 3144, 0xf29e526dUL, 1}, |
| 162 | |
glennrp | c241d3c | 2013-05-15 04:24:40 +0000 | [diff] [blame] | 163 | /* Facebook's "2012/01/25 03:41:57", 524, "TINYsRGB.icc" */ |
| 164 | { 524, 0xd4938c39UL, 0}, |
| 165 | |
| 166 | /* "2012/11/28 22:35:21", 3212, "Argyll_sRGB.icm") */ |
| 167 | { 3212, 0x034af5a1UL, 0}, |
| 168 | |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 169 | /* Not recognized */ |
| 170 | { 0, 0x00000000UL, 0}, |
| 171 | }; |
| 172 | |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 173 | /* Macros for left-bit-replication to ensure that pixels |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 174 | * and PixelInfos all have the same image->depth, and for use |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 175 | * in PNG8 quantization. |
| 176 | */ |
| 177 | |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 178 | /* LBR01: Replicate top bit */ |
| 179 | |
glennrp | 05001c3 | 2011-08-06 13:04:16 +0000 | [diff] [blame] | 180 | #define LBR01PacketRed(pixelpacket) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 181 | (pixelpacket).red=(ScaleQuantumToChar((pixelpacket).red) < 0x10 ? \ |
| 182 | 0 : QuantumRange); |
| 183 | |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 184 | #define LBR01PacketGreen(pixelpacket) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 185 | (pixelpacket).green=(ScaleQuantumToChar((pixelpacket).green) < 0x10 ? \ |
| 186 | 0 : QuantumRange); |
| 187 | |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 188 | #define LBR01PacketBlue(pixelpacket) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 189 | (pixelpacket).blue=(ScaleQuantumToChar((pixelpacket).blue) < 0x10 ? \ |
| 190 | 0 : QuantumRange); |
| 191 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 192 | #define LBR01PacketAlpha(pixelpacket) \ |
| 193 | (pixelpacket).alpha=(ScaleQuantumToChar((pixelpacket).alpha) < 0x10 ? \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 194 | 0 : QuantumRange); |
| 195 | |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 196 | #define LBR01PacketRGB(pixelpacket) \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 197 | { \ |
glennrp | 05001c3 | 2011-08-06 13:04:16 +0000 | [diff] [blame] | 198 | LBR01PacketRed((pixelpacket)); \ |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 199 | LBR01PacketGreen((pixelpacket)); \ |
| 200 | LBR01PacketBlue((pixelpacket)); \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 201 | } |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 202 | |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 203 | #define LBR01PacketRGBO(pixelpacket) \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 204 | { \ |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 205 | LBR01PacketRGB((pixelpacket)); \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 206 | LBR01PacketAlpha((pixelpacket)); \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 207 | } |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 208 | |
cristy | ef61831 | 2011-06-25 12:26:44 +0000 | [diff] [blame] | 209 | #define LBR01PixelRed(pixel) \ |
glennrp | 360c154 | 2013-01-06 01:21:46 +0000 | [diff] [blame] | 210 | (SetPixelRed(image, \ |
| 211 | ScaleQuantumToChar(GetPixelRed(image,(pixel))) < 0x10 ? \ |
glennrp | c7375f9 | 2013-01-06 01:32:16 +0000 | [diff] [blame] | 212 | 0 : QuantumRange,(pixel))); |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 213 | |
glennrp | 54cf797 | 2011-08-06 14:28:09 +0000 | [diff] [blame] | 214 | #define LBR01PixelGreen(pixel) \ |
glennrp | 360c154 | 2013-01-06 01:21:46 +0000 | [diff] [blame] | 215 | (SetPixelGreen(image, \ |
| 216 | ScaleQuantumToChar(GetPixelGreen(image,(pixel))) < 0x10 ? \ |
glennrp | c7375f9 | 2013-01-06 01:32:16 +0000 | [diff] [blame] | 217 | 0 : QuantumRange,(pixel))); |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 218 | |
glennrp | 54cf797 | 2011-08-06 14:28:09 +0000 | [diff] [blame] | 219 | #define LBR01PixelBlue(pixel) \ |
glennrp | 360c154 | 2013-01-06 01:21:46 +0000 | [diff] [blame] | 220 | (SetPixelBlue(image, \ |
| 221 | ScaleQuantumToChar(GetPixelBlue(image,(pixel))) < 0x10 ? \ |
glennrp | c7375f9 | 2013-01-06 01:32:16 +0000 | [diff] [blame] | 222 | 0 : QuantumRange,(pixel))); |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 223 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 224 | #define LBR01PixelAlpha(pixel) \ |
glennrp | 360c154 | 2013-01-06 01:21:46 +0000 | [diff] [blame] | 225 | (SetPixelAlpha(image, \ |
| 226 | ScaleQuantumToChar(GetPixelAlpha(image,(pixel))) < 0x10 ? \ |
glennrp | c7375f9 | 2013-01-06 01:32:16 +0000 | [diff] [blame] | 227 | 0 : QuantumRange,(pixel))); |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 228 | |
glennrp | 54cf797 | 2011-08-06 14:28:09 +0000 | [diff] [blame] | 229 | #define LBR01PixelRGB(pixel) \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 230 | { \ |
cristy | ef61831 | 2011-06-25 12:26:44 +0000 | [diff] [blame] | 231 | LBR01PixelRed((pixel)); \ |
glennrp | 54cf797 | 2011-08-06 14:28:09 +0000 | [diff] [blame] | 232 | LBR01PixelGreen((pixel)); \ |
| 233 | LBR01PixelBlue((pixel)); \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 234 | } |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 235 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 236 | #define LBR01PixelRGBA(pixel) \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 237 | { \ |
glennrp | 54cf797 | 2011-08-06 14:28:09 +0000 | [diff] [blame] | 238 | LBR01PixelRGB((pixel)); \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 239 | LBR01PixelAlpha((pixel)); \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 240 | } |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 241 | |
| 242 | /* LBR02: Replicate top 2 bits */ |
| 243 | |
glennrp | 05001c3 | 2011-08-06 13:04:16 +0000 | [diff] [blame] | 244 | #define LBR02PacketRed(pixelpacket) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 245 | { \ |
| 246 | unsigned char lbr_bits=ScaleQuantumToChar((pixelpacket).red) & 0xc0; \ |
| 247 | (pixelpacket).red=ScaleCharToQuantum( \ |
| 248 | (lbr_bits | (lbr_bits >> 2) | (lbr_bits >> 4) | (lbr_bits >> 6))); \ |
| 249 | } |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 250 | #define LBR02PacketGreen(pixelpacket) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 251 | { \ |
| 252 | unsigned char lbr_bits=ScaleQuantumToChar((pixelpacket).green) & 0xc0; \ |
| 253 | (pixelpacket).green=ScaleCharToQuantum( \ |
| 254 | (lbr_bits | (lbr_bits >> 2) | (lbr_bits >> 4) | (lbr_bits >> 6))); \ |
| 255 | } |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 256 | #define LBR02PacketBlue(pixelpacket) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 257 | { \ |
| 258 | unsigned char lbr_bits=ScaleQuantumToChar((pixelpacket).blue) & 0xc0; \ |
| 259 | (pixelpacket).blue=ScaleCharToQuantum( \ |
| 260 | (lbr_bits | (lbr_bits >> 2) | (lbr_bits >> 4) | (lbr_bits >> 6))); \ |
| 261 | } |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 262 | #define LBR02PacketAlpha(pixelpacket) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 263 | { \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 264 | unsigned char lbr_bits=ScaleQuantumToChar((pixelpacket).alpha) & 0xc0; \ |
| 265 | (pixelpacket).alpha=ScaleCharToQuantum( \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 266 | (lbr_bits | (lbr_bits >> 2) | (lbr_bits >> 4) | (lbr_bits >> 6))); \ |
| 267 | } |
| 268 | |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 269 | #define LBR02PacketRGB(pixelpacket) \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 270 | { \ |
glennrp | 05001c3 | 2011-08-06 13:04:16 +0000 | [diff] [blame] | 271 | LBR02PacketRed((pixelpacket)); \ |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 272 | LBR02PacketGreen((pixelpacket)); \ |
| 273 | LBR02PacketBlue((pixelpacket)); \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 274 | } |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 275 | |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 276 | #define LBR02PacketRGBO(pixelpacket) \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 277 | { \ |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 278 | LBR02PacketRGB((pixelpacket)); \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 279 | LBR02PacketAlpha((pixelpacket)); \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 280 | } |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 281 | |
cristy | ef61831 | 2011-06-25 12:26:44 +0000 | [diff] [blame] | 282 | #define LBR02PixelRed(pixel) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 283 | { \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 284 | unsigned char lbr_bits=ScaleQuantumToChar(GetPixelRed(image,(pixel))) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 285 | & 0xc0; \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 286 | SetPixelRed(image, ScaleCharToQuantum( \ |
| 287 | (lbr_bits | (lbr_bits >> 2) | (lbr_bits >> 4) | (lbr_bits >> 6))), \ |
| 288 | (pixel)); \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 289 | } |
glennrp | 54cf797 | 2011-08-06 14:28:09 +0000 | [diff] [blame] | 290 | #define LBR02PixelGreen(pixel) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 291 | { \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 292 | unsigned char lbr_bits=ScaleQuantumToChar(GetPixelGreen(image,(pixel)))\ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 293 | & 0xc0; \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 294 | SetPixelGreen(image, ScaleCharToQuantum( \ |
| 295 | (lbr_bits | (lbr_bits >> 2) | (lbr_bits >> 4) | (lbr_bits >> 6))), \ |
| 296 | (pixel)); \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 297 | } |
glennrp | 54cf797 | 2011-08-06 14:28:09 +0000 | [diff] [blame] | 298 | #define LBR02PixelBlue(pixel) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 299 | { \ |
| 300 | unsigned char lbr_bits= \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 301 | ScaleQuantumToChar(GetPixelBlue(image,(pixel))) & 0xc0; \ |
| 302 | SetPixelBlue(image, ScaleCharToQuantum( \ |
| 303 | (lbr_bits | (lbr_bits >> 2) | (lbr_bits >> 4) | (lbr_bits >> 6))), \ |
| 304 | (pixel)); \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 305 | } |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 306 | #define LBR02PixelAlpha(pixel) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 307 | { \ |
| 308 | unsigned char lbr_bits= \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 309 | ScaleQuantumToChar(GetPixelAlpha(image,(pixel))) & 0xc0; \ |
| 310 | SetPixelAlpha(image, ScaleCharToQuantum( \ |
| 311 | (lbr_bits | (lbr_bits >> 2) | (lbr_bits >> 4) | (lbr_bits >> 6))), \ |
| 312 | (pixel) ); \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 313 | } |
| 314 | |
glennrp | 54cf797 | 2011-08-06 14:28:09 +0000 | [diff] [blame] | 315 | #define LBR02PixelRGB(pixel) \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 316 | { \ |
cristy | ef61831 | 2011-06-25 12:26:44 +0000 | [diff] [blame] | 317 | LBR02PixelRed((pixel)); \ |
glennrp | 54cf797 | 2011-08-06 14:28:09 +0000 | [diff] [blame] | 318 | LBR02PixelGreen((pixel)); \ |
| 319 | LBR02PixelBlue((pixel)); \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 320 | } |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 321 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 322 | #define LBR02PixelRGBA(pixel) \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 323 | { \ |
glennrp | 54cf797 | 2011-08-06 14:28:09 +0000 | [diff] [blame] | 324 | LBR02PixelRGB((pixel)); \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 325 | LBR02PixelAlpha((pixel)); \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 326 | } |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 327 | |
| 328 | /* LBR03: Replicate top 3 bits (only used with opaque pixels during |
| 329 | PNG8 quantization) */ |
| 330 | |
glennrp | 05001c3 | 2011-08-06 13:04:16 +0000 | [diff] [blame] | 331 | #define LBR03PacketRed(pixelpacket) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 332 | { \ |
| 333 | unsigned char lbr_bits=ScaleQuantumToChar((pixelpacket).red) & 0xe0; \ |
| 334 | (pixelpacket).red=ScaleCharToQuantum( \ |
| 335 | (lbr_bits | (lbr_bits >> 3) | (lbr_bits >> 6))); \ |
| 336 | } |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 337 | #define LBR03PacketGreen(pixelpacket) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 338 | { \ |
| 339 | unsigned char lbr_bits=ScaleQuantumToChar((pixelpacket).green) & 0xe0; \ |
| 340 | (pixelpacket).green=ScaleCharToQuantum( \ |
| 341 | (lbr_bits | (lbr_bits >> 3) | (lbr_bits >> 6))); \ |
| 342 | } |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 343 | #define LBR03PacketBlue(pixelpacket) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 344 | { \ |
| 345 | unsigned char lbr_bits=ScaleQuantumToChar((pixelpacket).blue) & 0xe0; \ |
| 346 | (pixelpacket).blue=ScaleCharToQuantum( \ |
| 347 | (lbr_bits | (lbr_bits >> 3) | (lbr_bits >> 6))); \ |
| 348 | } |
| 349 | |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 350 | #define LBR03PacketRGB(pixelpacket) \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 351 | { \ |
glennrp | 05001c3 | 2011-08-06 13:04:16 +0000 | [diff] [blame] | 352 | LBR03PacketRed((pixelpacket)); \ |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 353 | LBR03PacketGreen((pixelpacket)); \ |
| 354 | LBR03PacketBlue((pixelpacket)); \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 355 | } |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 356 | |
cristy | ef61831 | 2011-06-25 12:26:44 +0000 | [diff] [blame] | 357 | #define LBR03PixelRed(pixel) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 358 | { \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 359 | unsigned char lbr_bits=ScaleQuantumToChar(GetPixelRed(image,(pixel))) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 360 | & 0xe0; \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 361 | SetPixelRed(image, ScaleCharToQuantum( \ |
| 362 | (lbr_bits | (lbr_bits >> 3) | (lbr_bits >> 6))), (pixel)); \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 363 | } |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 364 | #define LBR03Green(pixel) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 365 | { \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 366 | unsigned char lbr_bits=ScaleQuantumToChar(GetPixelGreen(image,(pixel)))\ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 367 | & 0xe0; \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 368 | SetPixelGreen(image, ScaleCharToQuantum( \ |
| 369 | (lbr_bits | (lbr_bits >> 3) | (lbr_bits >> 6))), (pixel)); \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 370 | } |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 371 | #define LBR03Blue(pixel) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 372 | { \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 373 | unsigned char lbr_bits=ScaleQuantumToChar(GetPixelBlue(image,(pixel))) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 374 | & 0xe0; \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 375 | SetPixelBlue(image, ScaleCharToQuantum( \ |
| 376 | (lbr_bits | (lbr_bits >> 3) | (lbr_bits >> 6))), (pixel)); \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 377 | } |
| 378 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 379 | #define LBR03RGB(pixel) \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 380 | { \ |
cristy | ef61831 | 2011-06-25 12:26:44 +0000 | [diff] [blame] | 381 | LBR03PixelRed((pixel)); \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 382 | LBR03Green((pixel)); \ |
| 383 | LBR03Blue((pixel)); \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 384 | } |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 385 | |
| 386 | /* LBR04: Replicate top 4 bits */ |
| 387 | |
glennrp | 05001c3 | 2011-08-06 13:04:16 +0000 | [diff] [blame] | 388 | #define LBR04PacketRed(pixelpacket) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 389 | { \ |
| 390 | unsigned char lbr_bits=ScaleQuantumToChar((pixelpacket).red) & 0xf0; \ |
| 391 | (pixelpacket).red=ScaleCharToQuantum((lbr_bits | (lbr_bits >> 4))); \ |
| 392 | } |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 393 | #define LBR04PacketGreen(pixelpacket) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 394 | { \ |
| 395 | unsigned char lbr_bits=ScaleQuantumToChar((pixelpacket).green) & 0xf0; \ |
| 396 | (pixelpacket).green=ScaleCharToQuantum((lbr_bits | (lbr_bits >> 4))); \ |
| 397 | } |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 398 | #define LBR04PacketBlue(pixelpacket) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 399 | { \ |
| 400 | unsigned char lbr_bits=ScaleQuantumToChar((pixelpacket).blue) & 0xf0; \ |
| 401 | (pixelpacket).blue=ScaleCharToQuantum((lbr_bits | (lbr_bits >> 4))); \ |
| 402 | } |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 403 | #define LBR04PacketAlpha(pixelpacket) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 404 | { \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 405 | unsigned char lbr_bits=ScaleQuantumToChar((pixelpacket).alpha) & 0xf0; \ |
| 406 | (pixelpacket).alpha=ScaleCharToQuantum((lbr_bits | (lbr_bits >> 4))); \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 407 | } |
| 408 | |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 409 | #define LBR04PacketRGB(pixelpacket) \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 410 | { \ |
glennrp | 05001c3 | 2011-08-06 13:04:16 +0000 | [diff] [blame] | 411 | LBR04PacketRed((pixelpacket)); \ |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 412 | LBR04PacketGreen((pixelpacket)); \ |
| 413 | LBR04PacketBlue((pixelpacket)); \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 414 | } |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 415 | |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 416 | #define LBR04PacketRGBO(pixelpacket) \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 417 | { \ |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 418 | LBR04PacketRGB((pixelpacket)); \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 419 | LBR04PacketAlpha((pixelpacket)); \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 420 | } |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 421 | |
cristy | ef61831 | 2011-06-25 12:26:44 +0000 | [diff] [blame] | 422 | #define LBR04PixelRed(pixel) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 423 | { \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 424 | unsigned char lbr_bits=ScaleQuantumToChar(GetPixelRed(image,(pixel))) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 425 | & 0xf0; \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 426 | SetPixelRed(image,\ |
| 427 | ScaleCharToQuantum((lbr_bits | (lbr_bits >> 4))), (pixel)); \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 428 | } |
glennrp | 54cf797 | 2011-08-06 14:28:09 +0000 | [diff] [blame] | 429 | #define LBR04PixelGreen(pixel) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 430 | { \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 431 | unsigned char lbr_bits=ScaleQuantumToChar(GetPixelGreen(image,(pixel)))\ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 432 | & 0xf0; \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 433 | SetPixelGreen(image,\ |
| 434 | ScaleCharToQuantum((lbr_bits | (lbr_bits >> 4))), (pixel)); \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 435 | } |
glennrp | 54cf797 | 2011-08-06 14:28:09 +0000 | [diff] [blame] | 436 | #define LBR04PixelBlue(pixel) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 437 | { \ |
| 438 | unsigned char lbr_bits= \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 439 | ScaleQuantumToChar(GetPixelBlue(image,(pixel))) & 0xf0; \ |
| 440 | SetPixelBlue(image,\ |
| 441 | ScaleCharToQuantum((lbr_bits | (lbr_bits >> 4))), (pixel)); \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 442 | } |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 443 | #define LBR04PixelAlpha(pixel) \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 444 | { \ |
| 445 | unsigned char lbr_bits= \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 446 | ScaleQuantumToChar(GetPixelAlpha(image,(pixel))) & 0xf0; \ |
| 447 | SetPixelAlpha(image,\ |
| 448 | ScaleCharToQuantum((lbr_bits | (lbr_bits >> 4))), (pixel)); \ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 449 | } |
| 450 | |
glennrp | 54cf797 | 2011-08-06 14:28:09 +0000 | [diff] [blame] | 451 | #define LBR04PixelRGB(pixel) \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 452 | { \ |
cristy | ef61831 | 2011-06-25 12:26:44 +0000 | [diff] [blame] | 453 | LBR04PixelRed((pixel)); \ |
glennrp | 54cf797 | 2011-08-06 14:28:09 +0000 | [diff] [blame] | 454 | LBR04PixelGreen((pixel)); \ |
| 455 | LBR04PixelBlue((pixel)); \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 456 | } |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 457 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 458 | #define LBR04PixelRGBA(pixel) \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 459 | { \ |
glennrp | 54cf797 | 2011-08-06 14:28:09 +0000 | [diff] [blame] | 460 | LBR04PixelRGB((pixel)); \ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 461 | LBR04PixelAlpha((pixel)); \ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 462 | } |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 463 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 464 | /* |
| 465 | Establish thread safety. |
| 466 | setjmp/longjmp is claimed to be safe on these platforms: |
| 467 | setjmp/longjmp is alleged to be unsafe on these platforms: |
| 468 | */ |
glennrp | 868fff3 | 2014-03-16 22:09:06 +0000 | [diff] [blame] | 469 | #ifdef PNG_SETJMP_SUPPORTED |
| 470 | # ifndef IMPNG_SETJMP_IS_THREAD_SAFE |
| 471 | # define IMPNG_SETJMP_NOT_THREAD_SAFE |
| 472 | # endif |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 473 | |
glennrp | 868fff3 | 2014-03-16 22:09:06 +0000 | [diff] [blame] | 474 | # ifdef IMPNG_SETJMP_NOT_THREAD_SAFE |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 475 | static SemaphoreInfo |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 476 | *ping_semaphore = (SemaphoreInfo *) NULL; |
glennrp | 868fff3 | 2014-03-16 22:09:06 +0000 | [diff] [blame] | 477 | # endif |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 478 | #endif |
| 479 | |
| 480 | /* |
| 481 | This temporary until I set up malloc'ed object attributes array. |
| 482 | Recompile with MNG_MAX_OBJECTS=65536L to avoid this limit but |
| 483 | waste more memory. |
| 484 | */ |
| 485 | #define MNG_MAX_OBJECTS 256 |
| 486 | |
| 487 | /* |
| 488 | If this not defined, spec is interpreted strictly. If it is |
| 489 | defined, an attempt will be made to recover from some errors, |
| 490 | including |
| 491 | o global PLTE too short |
| 492 | */ |
| 493 | #undef MNG_LOOSE |
| 494 | |
| 495 | /* |
| 496 | Don't try to define PNG_MNG_FEATURES_SUPPORTED here. Make sure |
| 497 | it's defined in libpng/pngconf.h, version 1.0.9 or later. It won't work |
| 498 | with earlier versions of libpng. From libpng-1.0.3a to libpng-1.0.8, |
| 499 | PNG_READ|WRITE_EMPTY_PLTE were used but those have been deprecated in |
| 500 | libpng in favor of PNG_MNG_FEATURES_SUPPORTED, so we set them here. |
| 501 | PNG_MNG_FEATURES_SUPPORTED is disabled by default in libpng-1.0.9 and |
| 502 | will be enabled by default in libpng-1.2.0. |
| 503 | */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 504 | #ifdef PNG_MNG_FEATURES_SUPPORTED |
| 505 | # ifndef PNG_READ_EMPTY_PLTE_SUPPORTED |
| 506 | # define PNG_READ_EMPTY_PLTE_SUPPORTED |
| 507 | # endif |
| 508 | # ifndef PNG_WRITE_EMPTY_PLTE_SUPPORTED |
| 509 | # define PNG_WRITE_EMPTY_PLTE_SUPPORTED |
| 510 | # endif |
| 511 | #endif |
| 512 | |
| 513 | /* |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 514 | Maximum valid size_t in PNG/MNG chunks is (2^31)-1 |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 515 | This macro is only defined in libpng-1.0.3 and later. |
| 516 | Previously it was PNG_MAX_UINT but that was deprecated in libpng-1.2.6 |
| 517 | */ |
| 518 | #ifndef PNG_UINT_31_MAX |
| 519 | #define PNG_UINT_31_MAX (png_uint_32) 0x7fffffffL |
| 520 | #endif |
| 521 | |
| 522 | /* |
| 523 | Constant strings for known chunk types. If you need to add a chunk, |
| 524 | add a string holding the name here. To make the code more |
| 525 | portable, we use ASCII numbers like this, not characters. |
| 526 | */ |
| 527 | |
Cristy | 629f805 | 2015-09-14 07:48:08 -0400 | [diff] [blame] | 528 | static const png_byte mng_MHDR[5]={ 77, 72, 68, 82, (png_byte) '\0'}; |
| 529 | static const png_byte mng_BACK[5]={ 66, 65, 67, 75, (png_byte) '\0'}; |
| 530 | static const png_byte mng_BASI[5]={ 66, 65, 83, 73, (png_byte) '\0'}; |
| 531 | static const png_byte mng_CLIP[5]={ 67, 76, 73, 80, (png_byte) '\0'}; |
| 532 | static const png_byte mng_CLON[5]={ 67, 76, 79, 78, (png_byte) '\0'}; |
| 533 | static const png_byte mng_DEFI[5]={ 68, 69, 70, 73, (png_byte) '\0'}; |
| 534 | static const png_byte mng_DHDR[5]={ 68, 72, 68, 82, (png_byte) '\0'}; |
| 535 | static const png_byte mng_DISC[5]={ 68, 73, 83, 67, (png_byte) '\0'}; |
| 536 | static const png_byte mng_ENDL[5]={ 69, 78, 68, 76, (png_byte) '\0'}; |
| 537 | static const png_byte mng_FRAM[5]={ 70, 82, 65, 77, (png_byte) '\0'}; |
| 538 | static const png_byte mng_IEND[5]={ 73, 69, 78, 68, (png_byte) '\0'}; |
| 539 | static const png_byte mng_IHDR[5]={ 73, 72, 68, 82, (png_byte) '\0'}; |
| 540 | static const png_byte mng_JHDR[5]={ 74, 72, 68, 82, (png_byte) '\0'}; |
| 541 | static const png_byte mng_LOOP[5]={ 76, 79, 79, 80, (png_byte) '\0'}; |
| 542 | static const png_byte mng_MAGN[5]={ 77, 65, 71, 78, (png_byte) '\0'}; |
| 543 | static const png_byte mng_MEND[5]={ 77, 69, 78, 68, (png_byte) '\0'}; |
| 544 | static const png_byte mng_MOVE[5]={ 77, 79, 86, 69, (png_byte) '\0'}; |
| 545 | static const png_byte mng_PAST[5]={ 80, 65, 83, 84, (png_byte) '\0'}; |
| 546 | static const png_byte mng_PLTE[5]={ 80, 76, 84, 69, (png_byte) '\0'}; |
| 547 | static const png_byte mng_SAVE[5]={ 83, 65, 86, 69, (png_byte) '\0'}; |
| 548 | static const png_byte mng_SEEK[5]={ 83, 69, 69, 75, (png_byte) '\0'}; |
| 549 | static const png_byte mng_SHOW[5]={ 83, 72, 79, 87, (png_byte) '\0'}; |
| 550 | static const png_byte mng_TERM[5]={ 84, 69, 82, 77, (png_byte) '\0'}; |
| 551 | static const png_byte mng_bKGD[5]={ 98, 75, 71, 68, (png_byte) '\0'}; |
| 552 | static const png_byte mng_cHRM[5]={ 99, 72, 82, 77, (png_byte) '\0'}; |
| 553 | static const png_byte mng_gAMA[5]={103, 65, 77, 65, (png_byte) '\0'}; |
| 554 | static const png_byte mng_iCCP[5]={105, 67, 67, 80, (png_byte) '\0'}; |
| 555 | static const png_byte mng_nEED[5]={110, 69, 69, 68, (png_byte) '\0'}; |
| 556 | static const png_byte mng_pHYg[5]={112, 72, 89, 103, (png_byte) '\0'}; |
| 557 | static const png_byte mng_vpAg[5]={118, 112, 65, 103, (png_byte) '\0'}; |
| 558 | static const png_byte mng_pHYs[5]={112, 72, 89, 115, (png_byte) '\0'}; |
| 559 | static const png_byte mng_sBIT[5]={115, 66, 73, 84, (png_byte) '\0'}; |
| 560 | static const png_byte mng_sRGB[5]={115, 82, 71, 66, (png_byte) '\0'}; |
| 561 | static const png_byte mng_tRNS[5]={116, 82, 78, 83, (png_byte) '\0'}; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 562 | |
| 563 | #if defined(JNG_SUPPORTED) |
Cristy | 629f805 | 2015-09-14 07:48:08 -0400 | [diff] [blame] | 564 | static const png_byte mng_IDAT[5]={ 73, 68, 65, 84, (png_byte) '\0'}; |
| 565 | static const png_byte mng_JDAT[5]={ 74, 68, 65, 84, (png_byte) '\0'}; |
| 566 | static const png_byte mng_JDAA[5]={ 74, 68, 65, 65, (png_byte) '\0'}; |
| 567 | static const png_byte mng_JdAA[5]={ 74, 100, 65, 65, (png_byte) '\0'}; |
| 568 | static const png_byte mng_JSEP[5]={ 74, 83, 69, 80, (png_byte) '\0'}; |
| 569 | static const png_byte mng_oFFs[5]={111, 70, 70, 115, (png_byte) '\0'}; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 570 | #endif |
| 571 | |
glennrp | 689efa2 | 2014-07-25 00:00:15 +0000 | [diff] [blame] | 572 | #if 0 |
| 573 | /* Other known chunks that are not yet supported by ImageMagick: */ |
Cristy | 629f805 | 2015-09-14 07:48:08 -0400 | [diff] [blame] | 574 | static const png_byte mng_hIST[5]={104, 73, 83, 84, (png_byte) '\0'}; |
| 575 | static const png_byte mng_iTXt[5]={105, 84, 88, 116, (png_byte) '\0'}; |
| 576 | static const png_byte mng_sPLT[5]={115, 80, 76, 84, (png_byte) '\0'}; |
| 577 | static const png_byte mng_sTER[5]={115, 84, 69, 82, (png_byte) '\0'}; |
| 578 | static const png_byte mng_tEXt[5]={116, 69, 88, 116, (png_byte) '\0'}; |
| 579 | static const png_byte mng_tIME[5]={116, 73, 77, 69, (png_byte) '\0'}; |
| 580 | static const png_byte mng_zTXt[5]={122, 84, 88, 116, (png_byte) '\0'}; |
glennrp | 689efa2 | 2014-07-25 00:00:15 +0000 | [diff] [blame] | 581 | #endif |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 582 | |
| 583 | typedef struct _MngBox |
| 584 | { |
cristy | 8182b07 | 2010-05-30 20:10:53 +0000 | [diff] [blame] | 585 | long |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 586 | left, |
| 587 | right, |
| 588 | top, |
| 589 | bottom; |
| 590 | } MngBox; |
| 591 | |
| 592 | typedef struct _MngPair |
| 593 | { |
cristy | 8182b07 | 2010-05-30 20:10:53 +0000 | [diff] [blame] | 594 | volatile long |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 595 | a, |
| 596 | b; |
| 597 | } MngPair; |
| 598 | |
| 599 | #ifdef MNG_OBJECT_BUFFERS |
| 600 | typedef struct _MngBuffer |
| 601 | { |
| 602 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 603 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 604 | height, |
| 605 | width; |
| 606 | |
| 607 | Image |
| 608 | *image; |
| 609 | |
| 610 | png_color |
| 611 | plte[256]; |
| 612 | |
| 613 | int |
| 614 | reference_count; |
| 615 | |
| 616 | unsigned char |
| 617 | alpha_sample_depth, |
| 618 | compression_method, |
| 619 | color_type, |
| 620 | concrete, |
| 621 | filter_method, |
| 622 | frozen, |
| 623 | image_type, |
| 624 | interlace_method, |
| 625 | pixel_sample_depth, |
| 626 | plte_length, |
| 627 | sample_depth, |
| 628 | viewable; |
| 629 | } MngBuffer; |
| 630 | #endif |
| 631 | |
| 632 | typedef struct _MngInfo |
| 633 | { |
| 634 | |
| 635 | #ifdef MNG_OBJECT_BUFFERS |
| 636 | MngBuffer |
| 637 | *ob[MNG_MAX_OBJECTS]; |
| 638 | #endif |
| 639 | |
| 640 | Image * |
| 641 | image; |
| 642 | |
| 643 | RectangleInfo |
| 644 | page; |
| 645 | |
| 646 | int |
| 647 | adjoin, |
| 648 | #ifndef PNG_READ_EMPTY_PLTE_SUPPORTED |
| 649 | bytes_in_read_buffer, |
| 650 | found_empty_plte, |
| 651 | #endif |
| 652 | equal_backgrounds, |
| 653 | equal_chrms, |
| 654 | equal_gammas, |
| 655 | #if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ |
| 656 | defined(PNG_MNG_FEATURES_SUPPORTED) |
| 657 | equal_palettes, |
| 658 | #endif |
| 659 | equal_physs, |
| 660 | equal_srgbs, |
| 661 | framing_mode, |
| 662 | have_global_bkgd, |
| 663 | have_global_chrm, |
| 664 | have_global_gama, |
| 665 | have_global_phys, |
| 666 | have_global_sbit, |
| 667 | have_global_srgb, |
| 668 | have_saved_bkgd_index, |
| 669 | have_write_global_chrm, |
| 670 | have_write_global_gama, |
| 671 | have_write_global_plte, |
| 672 | have_write_global_srgb, |
| 673 | need_fram, |
| 674 | object_id, |
| 675 | old_framing_mode, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 676 | saved_bkgd_index; |
| 677 | |
| 678 | int |
| 679 | new_number_colors; |
| 680 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 681 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 682 | image_found, |
| 683 | loop_count[256], |
| 684 | loop_iteration[256], |
| 685 | scenes_found, |
| 686 | x_off[MNG_MAX_OBJECTS], |
| 687 | y_off[MNG_MAX_OBJECTS]; |
| 688 | |
| 689 | MngBox |
| 690 | clip, |
| 691 | frame, |
| 692 | image_box, |
| 693 | object_clip[MNG_MAX_OBJECTS]; |
| 694 | |
| 695 | unsigned char |
| 696 | /* These flags could be combined into one byte */ |
| 697 | exists[MNG_MAX_OBJECTS], |
| 698 | frozen[MNG_MAX_OBJECTS], |
| 699 | loop_active[256], |
| 700 | invisible[MNG_MAX_OBJECTS], |
| 701 | viewable[MNG_MAX_OBJECTS]; |
| 702 | |
| 703 | MagickOffsetType |
| 704 | loop_jump[256]; |
| 705 | |
| 706 | png_colorp |
| 707 | global_plte; |
| 708 | |
| 709 | png_color_8 |
| 710 | global_sbit; |
| 711 | |
| 712 | png_byte |
| 713 | #ifndef PNG_READ_EMPTY_PLTE_SUPPORTED |
| 714 | read_buffer[8], |
| 715 | #endif |
| 716 | global_trns[256]; |
| 717 | |
| 718 | float |
| 719 | global_gamma; |
| 720 | |
| 721 | ChromaticityInfo |
| 722 | global_chrm; |
| 723 | |
| 724 | RenderingIntent |
| 725 | global_srgb_intent; |
| 726 | |
cristy | 35ef824 | 2010-06-03 16:24:13 +0000 | [diff] [blame] | 727 | unsigned int |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 728 | delay, |
| 729 | global_plte_length, |
| 730 | global_trns_length, |
| 731 | global_x_pixels_per_unit, |
| 732 | global_y_pixels_per_unit, |
| 733 | mng_width, |
| 734 | mng_height, |
| 735 | ticks_per_second; |
| 736 | |
glennrp | b9cfe27 | 2010-12-21 15:08:06 +0000 | [diff] [blame] | 737 | MagickBooleanType |
| 738 | need_blob; |
| 739 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 740 | unsigned int |
| 741 | IsPalette, |
| 742 | global_phys_unit_type, |
| 743 | basi_warning, |
| 744 | clon_warning, |
| 745 | dhdr_warning, |
| 746 | jhdr_warning, |
| 747 | magn_warning, |
| 748 | past_warning, |
| 749 | phyg_warning, |
| 750 | phys_warning, |
| 751 | sbit_warning, |
| 752 | show_warning, |
| 753 | mng_type, |
| 754 | write_mng, |
| 755 | write_png_colortype, |
| 756 | write_png_depth, |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 757 | write_png_compression_level, |
| 758 | write_png_compression_strategy, |
| 759 | write_png_compression_filter, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 760 | write_png8, |
| 761 | write_png24, |
glennrp | fd164d2 | 2013-01-26 21:10:22 +0000 | [diff] [blame] | 762 | write_png32, |
| 763 | write_png48, |
| 764 | write_png64; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 765 | |
| 766 | #ifdef MNG_BASI_SUPPORTED |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 767 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 768 | basi_width, |
| 769 | basi_height; |
| 770 | |
| 771 | unsigned int |
| 772 | basi_depth, |
| 773 | basi_color_type, |
| 774 | basi_compression_method, |
| 775 | basi_filter_type, |
| 776 | basi_interlace_method, |
| 777 | basi_red, |
| 778 | basi_green, |
| 779 | basi_blue, |
| 780 | basi_alpha, |
| 781 | basi_viewable; |
| 782 | #endif |
| 783 | |
| 784 | png_uint_16 |
| 785 | magn_first, |
| 786 | magn_last, |
| 787 | magn_mb, |
| 788 | magn_ml, |
| 789 | magn_mr, |
| 790 | magn_mt, |
| 791 | magn_mx, |
| 792 | magn_my, |
| 793 | magn_methx, |
| 794 | magn_methy; |
| 795 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 796 | PixelInfo |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 797 | mng_global_bkgd; |
| 798 | |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 799 | /* Added at version 6.6.6-7 */ |
| 800 | MagickBooleanType |
| 801 | ping_exclude_bKGD, |
| 802 | ping_exclude_cHRM, |
glennrp | a0ed009 | 2011-04-18 16:36:29 +0000 | [diff] [blame] | 803 | ping_exclude_date, |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 804 | ping_exclude_EXIF, |
| 805 | ping_exclude_gAMA, |
| 806 | ping_exclude_iCCP, |
| 807 | /* ping_exclude_iTXt, */ |
| 808 | ping_exclude_oFFs, |
| 809 | ping_exclude_pHYs, |
| 810 | ping_exclude_sRGB, |
| 811 | ping_exclude_tEXt, |
glennrp | a1e3b7b | 2010-12-24 16:37:33 +0000 | [diff] [blame] | 812 | ping_exclude_tRNS, |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 813 | ping_exclude_vpAg, |
| 814 | ping_exclude_zCCP, /* hex-encoded iCCP */ |
glennrp | 8d3d6e5 | 2011-04-19 04:39:51 +0000 | [diff] [blame] | 815 | ping_exclude_zTXt, |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 816 | ping_preserve_colormap, |
| 817 | /* Added at version 6.8.5-7 */ |
dirk | fd6fd07 | 2014-10-24 21:10:08 +0000 | [diff] [blame] | 818 | ping_preserve_iCCP, |
| 819 | /* Added at version 6.8.9-9 */ |
| 820 | ping_exclude_tIME; |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 821 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 822 | } MngInfo; |
| 823 | #endif /* VER */ |
| 824 | |
| 825 | /* |
| 826 | Forward declarations. |
| 827 | */ |
| 828 | static MagickBooleanType |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 829 | WritePNGImage(const ImageInfo *,Image *,ExceptionInfo *); |
glennrp | 0c3e06b | 2010-11-19 13:45:02 +0000 | [diff] [blame] | 830 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 831 | static MagickBooleanType |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 832 | WriteMNGImage(const ImageInfo *,Image *,ExceptionInfo *); |
glennrp | 0c3e06b | 2010-11-19 13:45:02 +0000 | [diff] [blame] | 833 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 834 | #if defined(JNG_SUPPORTED) |
| 835 | static MagickBooleanType |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 836 | WriteJNGImage(const ImageInfo *,Image *,ExceptionInfo *); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 837 | #endif |
| 838 | |
glennrp | 0c3e06b | 2010-11-19 13:45:02 +0000 | [diff] [blame] | 839 | #if PNG_LIBPNG_VER > 10011 |
| 840 | |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 841 | |
glennrp | 0c3e06b | 2010-11-19 13:45:02 +0000 | [diff] [blame] | 842 | #if (MAGICKCORE_QUANTUM_DEPTH >= 16) |
| 843 | static MagickBooleanType |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 844 | LosslessReduceDepthOK(Image *image,ExceptionInfo *exception) |
glennrp | 0c3e06b | 2010-11-19 13:45:02 +0000 | [diff] [blame] | 845 | { |
glennrp | 67b9c1a | 2011-04-22 18:47:36 +0000 | [diff] [blame] | 846 | /* Reduce bit depth if it can be reduced losslessly from 16+ to 8. |
| 847 | * |
| 848 | * This is true if the high byte and the next highest byte of |
| 849 | * each sample of the image, the colormap, and the background color |
glennrp | 3faa9a3 | 2011-04-23 14:00:25 +0000 | [diff] [blame] | 850 | * are equal to each other. We check this by seeing if the samples |
| 851 | * are unchanged when we scale them down to 8 and back up to Quantum. |
glennrp | 67b9c1a | 2011-04-22 18:47:36 +0000 | [diff] [blame] | 852 | * |
| 853 | * We don't use the method GetImageDepth() because it doesn't check |
glennrp | 3faa9a3 | 2011-04-23 14:00:25 +0000 | [diff] [blame] | 854 | * background and doesn't handle PseudoClass specially. |
glennrp | 67b9c1a | 2011-04-22 18:47:36 +0000 | [diff] [blame] | 855 | */ |
| 856 | |
glennrp | 3faa9a3 | 2011-04-23 14:00:25 +0000 | [diff] [blame] | 857 | #define QuantumToCharToQuantumEqQuantum(quantum) \ |
| 858 | ((ScaleCharToQuantum((unsigned char) ScaleQuantumToChar(quantum))) == quantum) |
| 859 | |
glennrp | 0c3e06b | 2010-11-19 13:45:02 +0000 | [diff] [blame] | 860 | MagickBooleanType |
| 861 | ok_to_reduce=MagickFalse; |
glennrp | 0c3e06b | 2010-11-19 13:45:02 +0000 | [diff] [blame] | 862 | |
glennrp | 03e11f6 | 2011-04-22 13:30:16 +0000 | [diff] [blame] | 863 | if (image->depth >= 16) |
glennrp | 0c3e06b | 2010-11-19 13:45:02 +0000 | [diff] [blame] | 864 | { |
| 865 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 866 | const Quantum |
glennrp | 0c3e06b | 2010-11-19 13:45:02 +0000 | [diff] [blame] | 867 | *p; |
| 868 | |
| 869 | ok_to_reduce= |
glennrp | 3faa9a3 | 2011-04-23 14:00:25 +0000 | [diff] [blame] | 870 | QuantumToCharToQuantumEqQuantum(image->background_color.red) && |
| 871 | QuantumToCharToQuantumEqQuantum(image->background_color.green) && |
| 872 | QuantumToCharToQuantumEqQuantum(image->background_color.blue) ? |
| 873 | MagickTrue : MagickFalse; |
glennrp | 0c3e06b | 2010-11-19 13:45:02 +0000 | [diff] [blame] | 874 | |
| 875 | if (ok_to_reduce != MagickFalse && image->storage_class == PseudoClass) |
| 876 | { |
| 877 | int indx; |
| 878 | |
| 879 | for (indx=0; indx < (ssize_t) image->colors; indx++) |
| 880 | { |
glennrp | 3faa9a3 | 2011-04-23 14:00:25 +0000 | [diff] [blame] | 881 | ok_to_reduce=( |
| 882 | QuantumToCharToQuantumEqQuantum( |
| 883 | image->colormap[indx].red) && |
| 884 | QuantumToCharToQuantumEqQuantum( |
| 885 | image->colormap[indx].green) && |
| 886 | QuantumToCharToQuantumEqQuantum( |
| 887 | image->colormap[indx].blue)) ? |
| 888 | MagickTrue : MagickFalse; |
| 889 | |
glennrp | 0c3e06b | 2010-11-19 13:45:02 +0000 | [diff] [blame] | 890 | if (ok_to_reduce == MagickFalse) |
glennrp | 3faa9a3 | 2011-04-23 14:00:25 +0000 | [diff] [blame] | 891 | break; |
glennrp | 0c3e06b | 2010-11-19 13:45:02 +0000 | [diff] [blame] | 892 | } |
| 893 | } |
| 894 | |
| 895 | if ((ok_to_reduce != MagickFalse) && |
| 896 | (image->storage_class != PseudoClass)) |
| 897 | { |
| 898 | ssize_t |
| 899 | y; |
| 900 | |
| 901 | register ssize_t |
| 902 | x; |
| 903 | |
| 904 | for (y=0; y < (ssize_t) image->rows; y++) |
| 905 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 906 | p=GetVirtualPixels(image,0,y,image->columns,1,exception); |
glennrp | 0c3e06b | 2010-11-19 13:45:02 +0000 | [diff] [blame] | 907 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 908 | if (p == (const Quantum *) NULL) |
glennrp | 0c3e06b | 2010-11-19 13:45:02 +0000 | [diff] [blame] | 909 | { |
| 910 | ok_to_reduce = MagickFalse; |
| 911 | break; |
| 912 | } |
| 913 | |
| 914 | for (x=(ssize_t) image->columns-1; x >= 0; x--) |
| 915 | { |
glennrp | 3faa9a3 | 2011-04-23 14:00:25 +0000 | [diff] [blame] | 916 | ok_to_reduce= |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 917 | QuantumToCharToQuantumEqQuantum(GetPixelRed(image,p)) && |
| 918 | QuantumToCharToQuantumEqQuantum(GetPixelGreen(image,p)) && |
| 919 | QuantumToCharToQuantumEqQuantum(GetPixelBlue(image,p)) ? |
glennrp | 3faa9a3 | 2011-04-23 14:00:25 +0000 | [diff] [blame] | 920 | MagickTrue : MagickFalse; |
glennrp | 0c3e06b | 2010-11-19 13:45:02 +0000 | [diff] [blame] | 921 | |
| 922 | if (ok_to_reduce == MagickFalse) |
| 923 | break; |
| 924 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 925 | p+=GetPixelChannels(image); |
glennrp | 0c3e06b | 2010-11-19 13:45:02 +0000 | [diff] [blame] | 926 | } |
glennrp | 8640fb5 | 2010-11-23 15:48:26 +0000 | [diff] [blame] | 927 | if (x >= 0) |
glennrp | 0c3e06b | 2010-11-19 13:45:02 +0000 | [diff] [blame] | 928 | break; |
| 929 | } |
| 930 | } |
| 931 | |
| 932 | if (ok_to_reduce != MagickFalse) |
| 933 | { |
glennrp | 0c3e06b | 2010-11-19 13:45:02 +0000 | [diff] [blame] | 934 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 935 | " OK to reduce PNG bit depth to 8 without loss of info"); |
glennrp | 0c3e06b | 2010-11-19 13:45:02 +0000 | [diff] [blame] | 936 | } |
glennrp | a6a0663 | 2011-01-19 15:15:34 +0000 | [diff] [blame] | 937 | else |
| 938 | { |
| 939 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 940 | " Not OK to reduce PNG bit depth to 8 without loss of info"); |
glennrp | a6a0663 | 2011-01-19 15:15:34 +0000 | [diff] [blame] | 941 | } |
glennrp | 0c3e06b | 2010-11-19 13:45:02 +0000 | [diff] [blame] | 942 | } |
| 943 | |
| 944 | return ok_to_reduce; |
| 945 | } |
| 946 | #endif /* MAGICKCORE_QUANTUM_DEPTH >= 16 */ |
| 947 | |
glennrp | 1a56e9c | 2012-04-25 17:06:57 +0000 | [diff] [blame] | 948 | static const char* PngColorTypeToString(const unsigned int color_type) |
| 949 | { |
| 950 | const char |
| 951 | *result = "Unknown"; |
| 952 | |
| 953 | switch (color_type) |
| 954 | { |
| 955 | case PNG_COLOR_TYPE_GRAY: |
| 956 | result = "Gray"; |
| 957 | break; |
| 958 | case PNG_COLOR_TYPE_GRAY_ALPHA: |
| 959 | result = "Gray+Alpha"; |
| 960 | break; |
| 961 | case PNG_COLOR_TYPE_PALETTE: |
| 962 | result = "Palette"; |
| 963 | break; |
| 964 | case PNG_COLOR_TYPE_RGB: |
| 965 | result = "RGB"; |
| 966 | break; |
| 967 | case PNG_COLOR_TYPE_RGB_ALPHA: |
| 968 | result = "RGB+Alpha"; |
| 969 | break; |
| 970 | } |
| 971 | |
| 972 | return result; |
| 973 | } |
| 974 | |
glennrp | e610a07 | 2010-08-05 17:08:46 +0000 | [diff] [blame] | 975 | static int |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 976 | Magick_RenderingIntent_to_PNG_RenderingIntent(const RenderingIntent intent) |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 977 | { |
glennrp | e610a07 | 2010-08-05 17:08:46 +0000 | [diff] [blame] | 978 | switch (intent) |
| 979 | { |
| 980 | case PerceptualIntent: |
| 981 | return 0; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 982 | |
glennrp | e610a07 | 2010-08-05 17:08:46 +0000 | [diff] [blame] | 983 | case RelativeIntent: |
| 984 | return 1; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 985 | |
glennrp | e610a07 | 2010-08-05 17:08:46 +0000 | [diff] [blame] | 986 | case SaturationIntent: |
| 987 | return 2; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 988 | |
glennrp | e610a07 | 2010-08-05 17:08:46 +0000 | [diff] [blame] | 989 | case AbsoluteIntent: |
| 990 | return 3; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 991 | |
glennrp | e610a07 | 2010-08-05 17:08:46 +0000 | [diff] [blame] | 992 | default: |
| 993 | return -1; |
| 994 | } |
| 995 | } |
| 996 | |
| 997 | static RenderingIntent |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 998 | Magick_RenderingIntent_from_PNG_RenderingIntent(const int ping_intent) |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 999 | { |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 1000 | switch (ping_intent) |
glennrp | e610a07 | 2010-08-05 17:08:46 +0000 | [diff] [blame] | 1001 | { |
| 1002 | case 0: |
| 1003 | return PerceptualIntent; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1004 | |
glennrp | e610a07 | 2010-08-05 17:08:46 +0000 | [diff] [blame] | 1005 | case 1: |
| 1006 | return RelativeIntent; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1007 | |
glennrp | e610a07 | 2010-08-05 17:08:46 +0000 | [diff] [blame] | 1008 | case 2: |
| 1009 | return SaturationIntent; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1010 | |
glennrp | e610a07 | 2010-08-05 17:08:46 +0000 | [diff] [blame] | 1011 | case 3: |
| 1012 | return AbsoluteIntent; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1013 | |
glennrp | e610a07 | 2010-08-05 17:08:46 +0000 | [diff] [blame] | 1014 | default: |
| 1015 | return UndefinedIntent; |
| 1016 | } |
| 1017 | } |
| 1018 | |
cristy | 9d8c122 | 2012-08-10 12:34:19 +0000 | [diff] [blame] | 1019 | static const char * |
glennrp | 98b83d4 | 2012-07-23 02:50:31 +0000 | [diff] [blame] | 1020 | Magick_RenderingIntentString_from_PNG_RenderingIntent(const int ping_intent) |
| 1021 | { |
| 1022 | switch (ping_intent) |
| 1023 | { |
| 1024 | case 0: |
| 1025 | return "Perceptual Intent"; |
| 1026 | |
| 1027 | case 1: |
| 1028 | return "Relative Intent"; |
| 1029 | |
| 1030 | case 2: |
| 1031 | return "Saturation Intent"; |
| 1032 | |
| 1033 | case 3: |
| 1034 | return "Absolute Intent"; |
| 1035 | |
| 1036 | default: |
| 1037 | return "Undefined Intent"; |
| 1038 | } |
| 1039 | } |
| 1040 | |
cristy | d9ecd04 | 2012-06-17 18:26:12 +0000 | [diff] [blame] | 1041 | static const char * |
glennrp | 5dff435 | 2012-06-06 22:12:04 +0000 | [diff] [blame] | 1042 | Magick_ColorType_from_PNG_ColorType(const int ping_colortype) |
| 1043 | { |
| 1044 | switch (ping_colortype) |
| 1045 | { |
| 1046 | case 0: |
| 1047 | return "Grayscale"; |
| 1048 | |
| 1049 | case 2: |
| 1050 | return "Truecolor"; |
| 1051 | |
| 1052 | case 3: |
| 1053 | return "Indexed"; |
| 1054 | |
| 1055 | case 4: |
| 1056 | return "GrayAlpha"; |
| 1057 | |
| 1058 | case 6: |
| 1059 | return "RGBA"; |
| 1060 | |
| 1061 | default: |
| 1062 | return "UndefinedColorType"; |
| 1063 | } |
| 1064 | } |
| 1065 | |
glennrp | d5045b4 | 2010-03-24 12:40:35 +0000 | [diff] [blame] | 1066 | #endif /* PNG_LIBPNG_VER > 10011 */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1067 | #endif /* MAGICKCORE_PNG_DELEGATE */ |
| 1068 | |
| 1069 | /* |
| 1070 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1071 | % % |
| 1072 | % % |
| 1073 | % % |
| 1074 | % I s M N G % |
| 1075 | % % |
| 1076 | % % |
| 1077 | % % |
| 1078 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1079 | % |
| 1080 | % IsMNG() returns MagickTrue if the image format type, identified by the |
| 1081 | % magick string, is MNG. |
| 1082 | % |
| 1083 | % The format of the IsMNG method is: |
| 1084 | % |
| 1085 | % MagickBooleanType IsMNG(const unsigned char *magick,const size_t length) |
| 1086 | % |
| 1087 | % A description of each parameter follows: |
| 1088 | % |
| 1089 | % o magick: compare image format pattern against these bytes. |
| 1090 | % |
| 1091 | % o length: Specifies the length of the magick string. |
| 1092 | % |
| 1093 | % |
| 1094 | */ |
| 1095 | static MagickBooleanType IsMNG(const unsigned char *magick,const size_t length) |
| 1096 | { |
| 1097 | if (length < 8) |
| 1098 | return(MagickFalse); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1099 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1100 | if (memcmp(magick,"\212MNG\r\n\032\n",8) == 0) |
| 1101 | return(MagickTrue); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1102 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1103 | return(MagickFalse); |
| 1104 | } |
| 1105 | |
| 1106 | /* |
| 1107 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1108 | % % |
| 1109 | % % |
| 1110 | % % |
| 1111 | % I s J N G % |
| 1112 | % % |
| 1113 | % % |
| 1114 | % % |
| 1115 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1116 | % |
| 1117 | % IsJNG() returns MagickTrue if the image format type, identified by the |
| 1118 | % magick string, is JNG. |
| 1119 | % |
| 1120 | % The format of the IsJNG method is: |
| 1121 | % |
| 1122 | % MagickBooleanType IsJNG(const unsigned char *magick,const size_t length) |
| 1123 | % |
| 1124 | % A description of each parameter follows: |
| 1125 | % |
| 1126 | % o magick: compare image format pattern against these bytes. |
| 1127 | % |
| 1128 | % o length: Specifies the length of the magick string. |
| 1129 | % |
| 1130 | % |
| 1131 | */ |
| 1132 | static MagickBooleanType IsJNG(const unsigned char *magick,const size_t length) |
| 1133 | { |
| 1134 | if (length < 8) |
| 1135 | return(MagickFalse); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1136 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1137 | if (memcmp(magick,"\213JNG\r\n\032\n",8) == 0) |
| 1138 | return(MagickTrue); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1139 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1140 | return(MagickFalse); |
| 1141 | } |
| 1142 | |
| 1143 | /* |
| 1144 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1145 | % % |
| 1146 | % % |
| 1147 | % % |
| 1148 | % I s P N G % |
| 1149 | % % |
| 1150 | % % |
| 1151 | % % |
| 1152 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1153 | % |
| 1154 | % IsPNG() returns MagickTrue if the image format type, identified by the |
| 1155 | % magick string, is PNG. |
| 1156 | % |
| 1157 | % The format of the IsPNG method is: |
| 1158 | % |
| 1159 | % MagickBooleanType IsPNG(const unsigned char *magick,const size_t length) |
| 1160 | % |
| 1161 | % A description of each parameter follows: |
| 1162 | % |
| 1163 | % o magick: compare image format pattern against these bytes. |
| 1164 | % |
| 1165 | % o length: Specifies the length of the magick string. |
| 1166 | % |
| 1167 | */ |
| 1168 | static MagickBooleanType IsPNG(const unsigned char *magick,const size_t length) |
| 1169 | { |
| 1170 | if (length < 8) |
| 1171 | return(MagickFalse); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1172 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1173 | if (memcmp(magick,"\211PNG\r\n\032\n",8) == 0) |
| 1174 | return(MagickTrue); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1175 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1176 | return(MagickFalse); |
| 1177 | } |
| 1178 | |
| 1179 | #if defined(MAGICKCORE_PNG_DELEGATE) |
| 1180 | #if defined(__cplusplus) || defined(c_plusplus) |
| 1181 | extern "C" { |
| 1182 | #endif |
| 1183 | |
glennrp | d5045b4 | 2010-03-24 12:40:35 +0000 | [diff] [blame] | 1184 | #if (PNG_LIBPNG_VER > 10011) |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1185 | static size_t WriteBlobMSBULong(Image *image,const size_t value) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1186 | { |
| 1187 | unsigned char |
| 1188 | buffer[4]; |
| 1189 | |
| 1190 | assert(image != (Image *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 1191 | assert(image->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1192 | buffer[0]=(unsigned char) (value >> 24); |
| 1193 | buffer[1]=(unsigned char) (value >> 16); |
| 1194 | buffer[2]=(unsigned char) (value >> 8); |
| 1195 | buffer[3]=(unsigned char) value; |
| 1196 | return((size_t) WriteBlob(image,4,buffer)); |
| 1197 | } |
| 1198 | |
| 1199 | static void PNGLong(png_bytep p,png_uint_32 value) |
| 1200 | { |
| 1201 | *p++=(png_byte) ((value >> 24) & 0xff); |
| 1202 | *p++=(png_byte) ((value >> 16) & 0xff); |
| 1203 | *p++=(png_byte) ((value >> 8) & 0xff); |
| 1204 | *p++=(png_byte) (value & 0xff); |
| 1205 | } |
| 1206 | |
glennrp | a521b2f | 2010-10-29 04:11:03 +0000 | [diff] [blame] | 1207 | #if defined(JNG_SUPPORTED) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1208 | static void PNGsLong(png_bytep p,png_int_32 value) |
| 1209 | { |
| 1210 | *p++=(png_byte) ((value >> 24) & 0xff); |
| 1211 | *p++=(png_byte) ((value >> 16) & 0xff); |
| 1212 | *p++=(png_byte) ((value >> 8) & 0xff); |
| 1213 | *p++=(png_byte) (value & 0xff); |
| 1214 | } |
glennrp | a521b2f | 2010-10-29 04:11:03 +0000 | [diff] [blame] | 1215 | #endif |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1216 | |
| 1217 | static void PNGShort(png_bytep p,png_uint_16 value) |
| 1218 | { |
| 1219 | *p++=(png_byte) ((value >> 8) & 0xff); |
| 1220 | *p++=(png_byte) (value & 0xff); |
| 1221 | } |
| 1222 | |
Cristy | 120b581 | 2015-09-14 17:33:11 -0400 | [diff] [blame] | 1223 | static void PNGType(png_bytep p,const png_byte *type) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1224 | { |
| 1225 | (void) CopyMagickMemory(p,type,4*sizeof(png_byte)); |
| 1226 | } |
| 1227 | |
Cristy | 120b581 | 2015-09-14 17:33:11 -0400 | [diff] [blame] | 1228 | static void LogPNGChunk(MagickBooleanType logging, const png_byte *type, |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 1229 | size_t length) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1230 | { |
| 1231 | if (logging != MagickFalse) |
| 1232 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 1233 | " Writing %c%c%c%c chunk, length: %.20g", |
| 1234 | type[0],type[1],type[2],type[3],(double) length); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1235 | } |
glennrp | d5045b4 | 2010-03-24 12:40:35 +0000 | [diff] [blame] | 1236 | #endif /* PNG_LIBPNG_VER > 10011 */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1237 | |
| 1238 | #if defined(__cplusplus) || defined(c_plusplus) |
| 1239 | } |
| 1240 | #endif |
| 1241 | |
glennrp | d5045b4 | 2010-03-24 12:40:35 +0000 | [diff] [blame] | 1242 | #if PNG_LIBPNG_VER > 10011 |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1243 | /* |
| 1244 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1245 | % % |
| 1246 | % % |
| 1247 | % % |
| 1248 | % R e a d P N G I m a g e % |
| 1249 | % % |
| 1250 | % % |
| 1251 | % % |
| 1252 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1253 | % |
| 1254 | % ReadPNGImage() reads a Portable Network Graphics (PNG) or |
| 1255 | % Multiple-image Network Graphics (MNG) image file and returns it. It |
| 1256 | % allocates the memory necessary for the new Image structure and returns a |
| 1257 | % pointer to the new image or set of images. |
| 1258 | % |
| 1259 | % MNG support written by Glenn Randers-Pehrson, glennrp@image... |
| 1260 | % |
| 1261 | % The format of the ReadPNGImage method is: |
| 1262 | % |
| 1263 | % Image *ReadPNGImage(const ImageInfo *image_info,ExceptionInfo *exception) |
| 1264 | % |
| 1265 | % A description of each parameter follows: |
| 1266 | % |
| 1267 | % o image_info: the image info. |
| 1268 | % |
| 1269 | % o exception: return any errors or warnings in this structure. |
| 1270 | % |
| 1271 | % To do, more or less in chronological order (as of version 5.5.2, |
| 1272 | % November 26, 2002 -- glennrp -- see also "To do" under WriteMNGImage): |
| 1273 | % |
| 1274 | % Get 16-bit cheap transparency working. |
| 1275 | % |
| 1276 | % (At this point, PNG decoding is supposed to be in full MNG-LC compliance) |
| 1277 | % |
| 1278 | % Preserve all unknown and not-yet-handled known chunks found in input |
| 1279 | % PNG file and copy them into output PNG files according to the PNG |
| 1280 | % copying rules. |
| 1281 | % |
| 1282 | % (At this point, PNG encoding should be in full MNG compliance) |
| 1283 | % |
| 1284 | % Provide options for choice of background to use when the MNG BACK |
| 1285 | % chunk is not present or is not mandatory (i.e., leave transparent, |
| 1286 | % user specified, MNG BACK, PNG bKGD) |
| 1287 | % |
| 1288 | % Implement LOOP/ENDL [done, but could do discretionary loops more |
| 1289 | % efficiently by linking in the duplicate frames.]. |
| 1290 | % |
| 1291 | % Decode and act on the MHDR simplicity profile (offer option to reject |
| 1292 | % files or attempt to process them anyway when the profile isn't LC or VLC). |
| 1293 | % |
| 1294 | % Upgrade to full MNG without Delta-PNG. |
| 1295 | % |
| 1296 | % o BACK [done a while ago except for background image ID] |
| 1297 | % o MOVE [done 15 May 1999] |
| 1298 | % o CLIP [done 15 May 1999] |
| 1299 | % o DISC [done 19 May 1999] |
| 1300 | % o SAVE [partially done 19 May 1999 (marks objects frozen)] |
| 1301 | % o SEEK [partially done 19 May 1999 (discard function only)] |
| 1302 | % o SHOW |
| 1303 | % o PAST |
| 1304 | % o BASI |
| 1305 | % o MNG-level tEXt/iTXt/zTXt |
| 1306 | % o pHYg |
| 1307 | % o pHYs |
| 1308 | % o sBIT |
| 1309 | % o bKGD |
| 1310 | % o iTXt (wait for libpng implementation). |
| 1311 | % |
| 1312 | % Use the scene signature to discover when an identical scene is |
| 1313 | % being reused, and just point to the original image->exception instead |
| 1314 | % of storing another set of pixels. This not specific to MNG |
| 1315 | % but could be applied generally. |
| 1316 | % |
| 1317 | % Upgrade to full MNG with Delta-PNG. |
| 1318 | % |
| 1319 | % JNG tEXt/iTXt/zTXt |
| 1320 | % |
| 1321 | % We will not attempt to read files containing the CgBI chunk. |
| 1322 | % They are really Xcode files meant for display on the iPhone. |
| 1323 | % These are not valid PNG files and it is impossible to recover |
glennrp | f54e295 | 2011-06-29 14:20:44 +0000 | [diff] [blame] | 1324 | % the original PNG from files that have been converted to Xcode-PNG, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1325 | % since irretrievable loss of color data has occurred due to the |
| 1326 | % use of premultiplied alpha. |
| 1327 | */ |
| 1328 | |
| 1329 | #if defined(__cplusplus) || defined(c_plusplus) |
| 1330 | extern "C" { |
| 1331 | #endif |
| 1332 | |
| 1333 | /* |
| 1334 | This the function that does the actual reading of data. It is |
| 1335 | the same as the one supplied in libpng, except that it receives the |
| 1336 | datastream from the ReadBlob() function instead of standard input. |
| 1337 | */ |
| 1338 | static void png_get_data(png_structp png_ptr,png_bytep data,png_size_t length) |
| 1339 | { |
| 1340 | Image |
| 1341 | *image; |
| 1342 | |
| 1343 | image=(Image *) png_get_io_ptr(png_ptr); |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 1344 | if (length != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1345 | { |
| 1346 | png_size_t |
| 1347 | check; |
| 1348 | |
| 1349 | check=(png_size_t) ReadBlob(image,(size_t) length,data); |
| 1350 | if (check != length) |
| 1351 | { |
| 1352 | char |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 1353 | msg[MagickPathExtent]; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1354 | |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 1355 | (void) FormatLocaleString(msg,MagickPathExtent, |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 1356 | "Expected %.20g bytes; found %.20g bytes",(double) length, |
| 1357 | (double) check); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1358 | png_warning(png_ptr,msg); |
| 1359 | png_error(png_ptr,"Read Exception"); |
| 1360 | } |
| 1361 | } |
| 1362 | } |
| 1363 | |
| 1364 | #if !defined(PNG_READ_EMPTY_PLTE_SUPPORTED) && \ |
| 1365 | !defined(PNG_MNG_FEATURES_SUPPORTED) |
| 1366 | /* We use mng_get_data() instead of png_get_data() if we have a libpng |
| 1367 | * older than libpng-1.0.3a, which was the first to allow the empty |
| 1368 | * PLTE, or a newer libpng in which PNG_MNG_FEATURES_SUPPORTED was |
| 1369 | * ifdef'ed out. Earlier versions would crash if the bKGD chunk was |
| 1370 | * encountered after an empty PLTE, so we have to look ahead for bKGD |
| 1371 | * chunks and remove them from the datastream that is passed to libpng, |
| 1372 | * and store their contents for later use. |
| 1373 | */ |
| 1374 | static void mng_get_data(png_structp png_ptr,png_bytep data,png_size_t length) |
| 1375 | { |
| 1376 | MngInfo |
| 1377 | *mng_info; |
| 1378 | |
| 1379 | Image |
| 1380 | *image; |
| 1381 | |
| 1382 | png_size_t |
| 1383 | check; |
| 1384 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1385 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1386 | i; |
| 1387 | |
| 1388 | i=0; |
| 1389 | mng_info=(MngInfo *) png_get_io_ptr(png_ptr); |
| 1390 | image=(Image *) mng_info->image; |
| 1391 | while (mng_info->bytes_in_read_buffer && length) |
| 1392 | { |
| 1393 | data[i]=mng_info->read_buffer[i]; |
| 1394 | mng_info->bytes_in_read_buffer--; |
| 1395 | length--; |
| 1396 | i++; |
| 1397 | } |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 1398 | if (length != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1399 | { |
| 1400 | check=(png_size_t) ReadBlob(image,(size_t) length,(char *) data); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1401 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1402 | if (check != length) |
| 1403 | png_error(png_ptr,"Read Exception"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1404 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1405 | if (length == 4) |
| 1406 | { |
| 1407 | if ((data[0] == 0) && (data[1] == 0) && (data[2] == 0) && |
| 1408 | (data[3] == 0)) |
| 1409 | { |
| 1410 | check=(png_size_t) ReadBlob(image,(size_t) length, |
| 1411 | (char *) mng_info->read_buffer); |
| 1412 | mng_info->read_buffer[4]=0; |
| 1413 | mng_info->bytes_in_read_buffer=4; |
| 1414 | if (memcmp(mng_info->read_buffer,mng_PLTE,4) == 0) |
| 1415 | mng_info->found_empty_plte=MagickTrue; |
| 1416 | if (memcmp(mng_info->read_buffer,mng_IEND,4) == 0) |
| 1417 | { |
| 1418 | mng_info->found_empty_plte=MagickFalse; |
| 1419 | mng_info->have_saved_bkgd_index=MagickFalse; |
| 1420 | } |
| 1421 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1422 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1423 | if ((data[0] == 0) && (data[1] == 0) && (data[2] == 0) && |
| 1424 | (data[3] == 1)) |
| 1425 | { |
| 1426 | check=(png_size_t) ReadBlob(image,(size_t) length, |
| 1427 | (char *) mng_info->read_buffer); |
| 1428 | mng_info->read_buffer[4]=0; |
| 1429 | mng_info->bytes_in_read_buffer=4; |
| 1430 | if (memcmp(mng_info->read_buffer,mng_bKGD,4) == 0) |
| 1431 | if (mng_info->found_empty_plte) |
| 1432 | { |
| 1433 | /* |
| 1434 | Skip the bKGD data byte and CRC. |
| 1435 | */ |
| 1436 | check=(png_size_t) |
| 1437 | ReadBlob(image,5,(char *) mng_info->read_buffer); |
| 1438 | check=(png_size_t) ReadBlob(image,(size_t) length, |
| 1439 | (char *) mng_info->read_buffer); |
| 1440 | mng_info->saved_bkgd_index=mng_info->read_buffer[0]; |
| 1441 | mng_info->have_saved_bkgd_index=MagickTrue; |
| 1442 | mng_info->bytes_in_read_buffer=0; |
| 1443 | } |
| 1444 | } |
| 1445 | } |
| 1446 | } |
| 1447 | } |
| 1448 | #endif |
| 1449 | |
| 1450 | static void png_put_data(png_structp png_ptr,png_bytep data,png_size_t length) |
| 1451 | { |
| 1452 | Image |
| 1453 | *image; |
| 1454 | |
| 1455 | image=(Image *) png_get_io_ptr(png_ptr); |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 1456 | if (length != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1457 | { |
| 1458 | png_size_t |
| 1459 | check; |
| 1460 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1461 | check=(png_size_t) WriteBlob(image,(size_t) length,data); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1462 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1463 | if (check != length) |
| 1464 | png_error(png_ptr,"WriteBlob Failed"); |
| 1465 | } |
| 1466 | } |
| 1467 | |
| 1468 | static void png_flush_data(png_structp png_ptr) |
| 1469 | { |
| 1470 | (void) png_ptr; |
| 1471 | } |
| 1472 | |
| 1473 | #ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED |
| 1474 | static int PalettesAreEqual(Image *a,Image *b) |
| 1475 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1476 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1477 | i; |
| 1478 | |
| 1479 | if ((a == (Image *) NULL) || (b == (Image *) NULL)) |
| 1480 | return((int) MagickFalse); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1481 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1482 | if (a->storage_class != PseudoClass || b->storage_class != PseudoClass) |
| 1483 | return((int) MagickFalse); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1484 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1485 | if (a->colors != b->colors) |
| 1486 | return((int) MagickFalse); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1487 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1488 | for (i=0; i < (ssize_t) a->colors; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1489 | { |
| 1490 | if ((a->colormap[i].red != b->colormap[i].red) || |
| 1491 | (a->colormap[i].green != b->colormap[i].green) || |
| 1492 | (a->colormap[i].blue != b->colormap[i].blue)) |
| 1493 | return((int) MagickFalse); |
| 1494 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1495 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1496 | return((int) MagickTrue); |
| 1497 | } |
| 1498 | #endif |
| 1499 | |
| 1500 | static void MngInfoDiscardObject(MngInfo *mng_info,int i) |
| 1501 | { |
| 1502 | if (i && (i < MNG_MAX_OBJECTS) && (mng_info != (MngInfo *) NULL) && |
| 1503 | mng_info->exists[i] && !mng_info->frozen[i]) |
| 1504 | { |
| 1505 | #ifdef MNG_OBJECT_BUFFERS |
| 1506 | if (mng_info->ob[i] != (MngBuffer *) NULL) |
| 1507 | { |
| 1508 | if (mng_info->ob[i]->reference_count > 0) |
| 1509 | mng_info->ob[i]->reference_count--; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1510 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1511 | if (mng_info->ob[i]->reference_count == 0) |
| 1512 | { |
| 1513 | if (mng_info->ob[i]->image != (Image *) NULL) |
| 1514 | mng_info->ob[i]->image=DestroyImage(mng_info->ob[i]->image); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1515 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1516 | mng_info->ob[i]=DestroyString(mng_info->ob[i]); |
| 1517 | } |
| 1518 | } |
| 1519 | mng_info->ob[i]=(MngBuffer *) NULL; |
| 1520 | #endif |
| 1521 | mng_info->exists[i]=MagickFalse; |
| 1522 | mng_info->invisible[i]=MagickFalse; |
| 1523 | mng_info->viewable[i]=MagickFalse; |
| 1524 | mng_info->frozen[i]=MagickFalse; |
| 1525 | mng_info->x_off[i]=0; |
| 1526 | mng_info->y_off[i]=0; |
| 1527 | mng_info->object_clip[i].left=0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1528 | mng_info->object_clip[i].right=(ssize_t) PNG_UINT_31_MAX; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1529 | mng_info->object_clip[i].top=0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1530 | mng_info->object_clip[i].bottom=(ssize_t) PNG_UINT_31_MAX; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1531 | } |
| 1532 | } |
| 1533 | |
glennrp | 21f0e62 | 2011-01-07 16:20:57 +0000 | [diff] [blame] | 1534 | static void MngInfoFreeStruct(MngInfo *mng_info, |
| 1535 | MagickBooleanType *have_mng_structure) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1536 | { |
glennrp | 21f0e62 | 2011-01-07 16:20:57 +0000 | [diff] [blame] | 1537 | if (*have_mng_structure != MagickFalse && (mng_info != (MngInfo *) NULL)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1538 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1539 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1540 | i; |
| 1541 | |
| 1542 | for (i=1; i < MNG_MAX_OBJECTS; i++) |
| 1543 | MngInfoDiscardObject(mng_info,i); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1544 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1545 | if (mng_info->global_plte != (png_colorp) NULL) |
| 1546 | mng_info->global_plte=(png_colorp) |
| 1547 | RelinquishMagickMemory(mng_info->global_plte); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1548 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1549 | mng_info=(MngInfo *) RelinquishMagickMemory(mng_info); |
| 1550 | *have_mng_structure=MagickFalse; |
| 1551 | } |
| 1552 | } |
| 1553 | |
| 1554 | static MngBox mng_minimum_box(MngBox box1,MngBox box2) |
| 1555 | { |
| 1556 | MngBox |
| 1557 | box; |
| 1558 | |
| 1559 | box=box1; |
| 1560 | if (box.left < box2.left) |
| 1561 | box.left=box2.left; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1562 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1563 | if (box.top < box2.top) |
| 1564 | box.top=box2.top; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1565 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1566 | if (box.right > box2.right) |
| 1567 | box.right=box2.right; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1568 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1569 | if (box.bottom > box2.bottom) |
| 1570 | box.bottom=box2.bottom; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1571 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1572 | return box; |
| 1573 | } |
| 1574 | |
| 1575 | static MngBox mng_read_box(MngBox previous_box,char delta_type,unsigned char *p) |
| 1576 | { |
| 1577 | MngBox |
| 1578 | box; |
| 1579 | |
| 1580 | /* |
| 1581 | Read clipping boundaries from DEFI, CLIP, FRAM, or PAST chunk. |
| 1582 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1583 | box.left=(ssize_t) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]); |
| 1584 | box.right=(ssize_t) ((p[4] << 24) | (p[5] << 16) | (p[6] << 8) | p[7]); |
| 1585 | box.top=(ssize_t) ((p[8] << 24) | (p[9] << 16) | (p[10] << 8) | p[11]); |
| 1586 | box.bottom=(ssize_t) ((p[12] << 24) | (p[13] << 16) | (p[14] << 8) | p[15]); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1587 | if (delta_type != 0) |
| 1588 | { |
| 1589 | box.left+=previous_box.left; |
| 1590 | box.right+=previous_box.right; |
| 1591 | box.top+=previous_box.top; |
| 1592 | box.bottom+=previous_box.bottom; |
| 1593 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1594 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1595 | return(box); |
| 1596 | } |
| 1597 | |
| 1598 | static MngPair mng_read_pair(MngPair previous_pair,int delta_type, |
| 1599 | unsigned char *p) |
| 1600 | { |
| 1601 | MngPair |
| 1602 | pair; |
| 1603 | /* |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1604 | Read two ssize_ts from CLON, MOVE or PAST chunk |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1605 | */ |
cristy | 8182b07 | 2010-05-30 20:10:53 +0000 | [diff] [blame] | 1606 | pair.a=(long) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]); |
| 1607 | pair.b=(long) ((p[4] << 24) | (p[5] << 16) | (p[6] << 8) | p[7]); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1608 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1609 | if (delta_type != 0) |
| 1610 | { |
| 1611 | pair.a+=previous_pair.a; |
| 1612 | pair.b+=previous_pair.b; |
| 1613 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1614 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1615 | return(pair); |
| 1616 | } |
| 1617 | |
cristy | 8182b07 | 2010-05-30 20:10:53 +0000 | [diff] [blame] | 1618 | static long mng_get_long(unsigned char *p) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1619 | { |
cristy | 8182b07 | 2010-05-30 20:10:53 +0000 | [diff] [blame] | 1620 | return((long) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3])); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1621 | } |
| 1622 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 1623 | typedef struct _PNGErrorInfo |
cristy | c82a27b | 2011-10-21 01:07:16 +0000 | [diff] [blame] | 1624 | { |
cristy | c82a27b | 2011-10-21 01:07:16 +0000 | [diff] [blame] | 1625 | Image |
| 1626 | *image; |
| 1627 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 1628 | ExceptionInfo |
| 1629 | *exception; |
| 1630 | } PNGErrorInfo; |
cristy | c82a27b | 2011-10-21 01:07:16 +0000 | [diff] [blame] | 1631 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 1632 | static void MagickPNGErrorHandler(png_struct *ping,png_const_charp message) |
| 1633 | { |
| 1634 | ExceptionInfo |
| 1635 | *exception; |
cristy | c82a27b | 2011-10-21 01:07:16 +0000 | [diff] [blame] | 1636 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 1637 | Image |
| 1638 | *image; |
| 1639 | |
| 1640 | PNGErrorInfo |
| 1641 | *error_info; |
| 1642 | |
| 1643 | error_info=(PNGErrorInfo *) png_get_error_ptr(ping); |
| 1644 | image=error_info->image; |
| 1645 | exception=error_info->exception; |
| 1646 | |
| 1647 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | b989d32 | 2014-11-05 04:25:18 +0000 | [diff] [blame] | 1648 | " libpng-%s error: %s", png_get_libpng_ver(NULL),message); |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 1649 | |
| 1650 | (void) ThrowMagickException(exception,GetMagickModule(),CoderError,message, |
| 1651 | "`%s'",image->filename); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1652 | |
glennrp | e4017e3 | 2011-01-08 17:16:09 +0000 | [diff] [blame] | 1653 | #if (PNG_LIBPNG_VER < 10500) |
glennrp | 8371ecc | 2011-02-19 19:15:38 +0000 | [diff] [blame] | 1654 | /* A warning about deprecated use of jmpbuf here is unavoidable if you |
| 1655 | * are building with libpng-1.4.x and can be ignored. |
| 1656 | */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1657 | longjmp(ping->jmpbuf,1); |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 1658 | #else |
| 1659 | png_longjmp(ping,1); |
| 1660 | #endif |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1661 | } |
| 1662 | |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 1663 | static void MagickPNGWarningHandler(png_struct *ping,png_const_charp message) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1664 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 1665 | ExceptionInfo |
| 1666 | *exception; |
| 1667 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1668 | Image |
| 1669 | *image; |
| 1670 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 1671 | PNGErrorInfo |
| 1672 | *error_info; |
| 1673 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1674 | if (LocaleCompare(message, "Missing PLTE before tRNS") == 0) |
| 1675 | png_error(ping, message); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1676 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 1677 | error_info=(PNGErrorInfo *) png_get_error_ptr(ping); |
| 1678 | image=error_info->image; |
| 1679 | exception=error_info->exception; |
| 1680 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | b989d32 | 2014-11-05 04:25:18 +0000 | [diff] [blame] | 1681 | " libpng-%s warning: %s", png_get_libpng_ver(NULL),message); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1682 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 1683 | (void) ThrowMagickException(exception,GetMagickModule(),CoderWarning, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1684 | message,"`%s'",image->filename); |
| 1685 | } |
| 1686 | |
| 1687 | #ifdef PNG_USER_MEM_SUPPORTED |
glennrp | 943b7d3 | 2013-04-21 00:40:38 +0000 | [diff] [blame] | 1688 | #if PNG_LIBPNG_VER >= 10400 |
cristy | a865ccd | 2012-07-28 00:33:10 +0000 | [diff] [blame] | 1689 | static png_voidp Magick_png_malloc(png_structp png_ptr,png_alloc_size_t size) |
| 1690 | #else |
| 1691 | static png_voidp Magick_png_malloc(png_structp png_ptr,png_size_t size) |
| 1692 | #endif |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1693 | { |
cristy | df0d90e | 2011-12-12 01:03:55 +0000 | [diff] [blame] | 1694 | (void) png_ptr; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1695 | return((png_voidp) AcquireMagickMemory((size_t) size)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1696 | } |
| 1697 | |
| 1698 | /* |
| 1699 | Free a pointer. It is removed from the list at the same time. |
| 1700 | */ |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 1701 | static png_free_ptr Magick_png_free(png_structp png_ptr,png_voidp ptr) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1702 | { |
glennrp | 3bd393f | 2011-12-21 18:54:53 +0000 | [diff] [blame] | 1703 | (void) png_ptr; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1704 | ptr=RelinquishMagickMemory(ptr); |
| 1705 | return((png_free_ptr) NULL); |
| 1706 | } |
| 1707 | #endif |
| 1708 | |
| 1709 | #if defined(__cplusplus) || defined(c_plusplus) |
| 1710 | } |
| 1711 | #endif |
| 1712 | |
| 1713 | static int |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 1714 | Magick_png_read_raw_profile(png_struct *ping,Image *image, |
| 1715 | const ImageInfo *image_info, png_textp text,int ii,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1716 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1717 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1718 | i; |
| 1719 | |
| 1720 | register unsigned char |
| 1721 | *dp; |
| 1722 | |
| 1723 | register png_charp |
| 1724 | sp; |
| 1725 | |
| 1726 | png_uint_32 |
| 1727 | length, |
| 1728 | nibbles; |
| 1729 | |
| 1730 | StringInfo |
| 1731 | *profile; |
| 1732 | |
glennrp | 0c3e06b | 2010-11-19 13:45:02 +0000 | [diff] [blame] | 1733 | const unsigned char |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1734 | unhex[103]={0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, |
| 1735 | 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, |
| 1736 | 0,0,0,0,0,0,0,0,0,1, 2,3,4,5,6,7,8,9,0,0, |
| 1737 | 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0, |
| 1738 | 0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,10,11,12, |
| 1739 | 13,14,15}; |
| 1740 | |
| 1741 | sp=text[ii].text+1; |
| 1742 | /* look for newline */ |
| 1743 | while (*sp != '\n') |
| 1744 | sp++; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1745 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1746 | /* look for length */ |
| 1747 | while (*sp == '\0' || *sp == ' ' || *sp == '\n') |
| 1748 | sp++; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1749 | |
cristy | f2f2727 | 2009-12-17 14:48:46 +0000 | [diff] [blame] | 1750 | length=(png_uint_32) StringToLong(sp); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1751 | |
glennrp | 97f90e2 | 2011-02-22 05:47:58 +0000 | [diff] [blame] | 1752 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 1753 | " length: %lu",(unsigned long) length); |
| 1754 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1755 | while (*sp != ' ' && *sp != '\n') |
| 1756 | sp++; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1757 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1758 | /* allocate space */ |
| 1759 | if (length == 0) |
| 1760 | { |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 1761 | png_warning(ping,"invalid profile length"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1762 | return(MagickFalse); |
| 1763 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1764 | |
cristy | 8723e4b | 2011-09-01 13:11:19 +0000 | [diff] [blame] | 1765 | profile=BlobToStringInfo((const void *) NULL,length); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1766 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1767 | if (profile == (StringInfo *) NULL) |
| 1768 | { |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 1769 | png_warning(ping, "unable to copy profile"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1770 | return(MagickFalse); |
| 1771 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1772 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1773 | /* copy profile, skipping white space and column 1 "=" signs */ |
| 1774 | dp=GetStringInfoDatum(profile); |
| 1775 | nibbles=length*2; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1776 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1777 | for (i=0; i < (ssize_t) nibbles; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1778 | { |
| 1779 | while (*sp < '0' || (*sp > '9' && *sp < 'a') || *sp > 'f') |
| 1780 | { |
| 1781 | if (*sp == '\0') |
| 1782 | { |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 1783 | png_warning(ping, "ran out of profile data"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1784 | profile=DestroyStringInfo(profile); |
| 1785 | return(MagickFalse); |
| 1786 | } |
| 1787 | sp++; |
| 1788 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1789 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1790 | if (i%2 == 0) |
| 1791 | *dp=(unsigned char) (16*unhex[(int) *sp++]); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1792 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1793 | else |
| 1794 | (*dp++)+=unhex[(int) *sp++]; |
| 1795 | } |
| 1796 | /* |
| 1797 | We have already read "Raw profile type. |
| 1798 | */ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 1799 | (void) SetImageProfile(image,&text[ii].key[17],profile,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1800 | profile=DestroyStringInfo(profile); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1801 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1802 | if (image_info->verbose) |
| 1803 | (void) printf(" Found a generic profile, type %s\n",&text[ii].key[17]); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1804 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1805 | return MagickTrue; |
| 1806 | } |
| 1807 | |
| 1808 | #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) |
| 1809 | static int read_vpag_chunk_callback(png_struct *ping, png_unknown_chunkp chunk) |
| 1810 | { |
| 1811 | Image |
| 1812 | *image; |
| 1813 | |
| 1814 | |
| 1815 | /* The unknown chunk structure contains the chunk data: |
| 1816 | png_byte name[5]; |
| 1817 | png_byte *data; |
| 1818 | png_size_t size; |
| 1819 | |
| 1820 | Note that libpng has already taken care of the CRC handling. |
| 1821 | */ |
| 1822 | |
glennrp | 2ad7015 | 2013-03-03 00:44:57 +0000 | [diff] [blame] | 1823 | LogMagickEvent(CoderEvent,GetMagickModule(), |
| 1824 | " read_vpag_chunk: found %c%c%c%c chunk", |
| 1825 | chunk->name[0],chunk->name[1],chunk->name[2],chunk->name[3]); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1826 | |
| 1827 | if (chunk->name[0] != 118 || chunk->name[1] != 112 || |
| 1828 | chunk->name[2] != 65 ||chunk-> name[3] != 103) |
| 1829 | return(0); /* Did not recognize */ |
| 1830 | |
| 1831 | /* recognized vpAg */ |
| 1832 | |
| 1833 | if (chunk->size != 9) |
| 1834 | return(-1); /* Error return */ |
| 1835 | |
| 1836 | if (chunk->data[8] != 0) |
| 1837 | return(0); /* ImageMagick requires pixel units */ |
| 1838 | |
| 1839 | image=(Image *) png_get_user_chunk_ptr(ping); |
| 1840 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1841 | image->page.width=(size_t) ((chunk->data[0] << 24) | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1842 | (chunk->data[1] << 16) | (chunk->data[2] << 8) | chunk->data[3]); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 1843 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1844 | image->page.height=(size_t) ((chunk->data[4] << 24) | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1845 | (chunk->data[5] << 16) | (chunk->data[6] << 8) | chunk->data[7]); |
| 1846 | |
| 1847 | /* Return one of the following: */ |
| 1848 | /* return(-n); chunk had an error */ |
| 1849 | /* return(0); did not recognize */ |
| 1850 | /* return(n); success */ |
| 1851 | |
| 1852 | return(1); |
| 1853 | |
| 1854 | } |
| 1855 | #endif |
| 1856 | |
dirk | fd6fd07 | 2014-10-24 21:10:08 +0000 | [diff] [blame] | 1857 | #if defined(PNG_tIME_SUPPORTED) |
| 1858 | static void read_tIME_chunk(Image *image,png_struct *ping,png_info *info, |
| 1859 | ExceptionInfo *exception) |
| 1860 | { |
| 1861 | png_timep |
| 1862 | time; |
| 1863 | |
| 1864 | if (png_get_tIME(ping,info,&time)) |
| 1865 | { |
| 1866 | char |
| 1867 | timestamp[21]; |
| 1868 | |
| 1869 | FormatLocaleString(timestamp,21,"%04d-%02d-%02dT%02d:%02d:%02dZ", |
| 1870 | time->year,time->month,time->day,time->hour,time->minute,time->second); |
| 1871 | SetImageProperty(image,"png:tIME",timestamp,exception); |
| 1872 | } |
| 1873 | } |
| 1874 | #endif |
| 1875 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1876 | /* |
| 1877 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1878 | % % |
| 1879 | % % |
| 1880 | % % |
| 1881 | % R e a d O n e P N G I m a g e % |
| 1882 | % % |
| 1883 | % % |
| 1884 | % % |
| 1885 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1886 | % |
| 1887 | % ReadOnePNGImage() reads a Portable Network Graphics (PNG) image file |
| 1888 | % (minus the 8-byte signature) and returns it. It allocates the memory |
| 1889 | % necessary for the new Image structure and returns a pointer to the new |
| 1890 | % image. |
| 1891 | % |
| 1892 | % The format of the ReadOnePNGImage method is: |
| 1893 | % |
| 1894 | % Image *ReadOnePNGImage(MngInfo *mng_info, const ImageInfo *image_info, |
| 1895 | % ExceptionInfo *exception) |
| 1896 | % |
| 1897 | % A description of each parameter follows: |
| 1898 | % |
| 1899 | % o mng_info: Specifies a pointer to a MngInfo structure. |
| 1900 | % |
| 1901 | % o image_info: the image info. |
| 1902 | % |
| 1903 | % o exception: return any errors or warnings in this structure. |
| 1904 | % |
| 1905 | */ |
| 1906 | static Image *ReadOnePNGImage(MngInfo *mng_info, |
| 1907 | const ImageInfo *image_info, ExceptionInfo *exception) |
| 1908 | { |
| 1909 | /* Read one PNG image */ |
| 1910 | |
glennrp | cc95c3f | 2011-04-18 16:46:48 +0000 | [diff] [blame] | 1911 | /* To do: Read the tEXt/Creation Time chunk into the date:create property */ |
| 1912 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1913 | Image |
| 1914 | *image; |
| 1915 | |
glennrp | d0cae25 | 2013-03-15 22:30:41 +0000 | [diff] [blame] | 1916 | char |
glennrp | ec0ddbc | 2013-03-16 12:40:12 +0000 | [diff] [blame] | 1917 | im_vers[32], |
| 1918 | libpng_runv[32], |
| 1919 | libpng_vers[32], |
| 1920 | zlib_runv[32], |
| 1921 | zlib_vers[32]; |
glennrp | d0cae25 | 2013-03-15 22:30:41 +0000 | [diff] [blame] | 1922 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1923 | int |
glennrp | 98b83d4 | 2012-07-23 02:50:31 +0000 | [diff] [blame] | 1924 | intent, /* "PNG Rendering intent", which is ICC intent + 1 */ |
glennrp | cb395ac | 2011-03-30 19:50:23 +0000 | [diff] [blame] | 1925 | num_raw_profiles, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1926 | num_text, |
glennrp | 4eb3931 | 2011-03-30 21:34:55 +0000 | [diff] [blame] | 1927 | num_text_total, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1928 | num_passes, |
glennrp | 913f961 | 2012-06-27 17:50:00 +0000 | [diff] [blame] | 1929 | number_colors, |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 1930 | pass, |
| 1931 | ping_bit_depth, |
| 1932 | ping_color_type, |
glennrp | fcf0616 | 2012-11-05 14:57:08 +0000 | [diff] [blame] | 1933 | ping_file_depth, |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 1934 | ping_interlace_method, |
| 1935 | ping_compression_method, |
| 1936 | ping_filter_method, |
glennrp | 4eb3931 | 2011-03-30 21:34:55 +0000 | [diff] [blame] | 1937 | ping_num_trans, |
| 1938 | unit_type; |
| 1939 | |
| 1940 | double |
| 1941 | file_gamma; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1942 | |
| 1943 | MagickBooleanType |
cristy | 4383ec8 | 2011-01-05 15:42:32 +0000 | [diff] [blame] | 1944 | logging, |
glennrp | 98b83d4 | 2012-07-23 02:50:31 +0000 | [diff] [blame] | 1945 | ping_found_cHRM, |
| 1946 | ping_found_gAMA, |
| 1947 | ping_found_iCCP, |
| 1948 | ping_found_sRGB, |
glennrp | 3d62786 | 2013-02-26 00:19:34 +0000 | [diff] [blame] | 1949 | ping_found_sRGB_cHRM, |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 1950 | ping_preserve_iCCP, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1951 | status; |
| 1952 | |
cristy | 0997332 | 2013-06-30 21:06:30 +0000 | [diff] [blame] | 1953 | MemoryInfo |
| 1954 | *volatile pixel_info; |
| 1955 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 1956 | PixelInfo |
| 1957 | transparent_color; |
| 1958 | |
| 1959 | PNGErrorInfo |
| 1960 | error_info; |
| 1961 | |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 1962 | png_bytep |
| 1963 | ping_trans_alpha; |
| 1964 | |
| 1965 | png_color_16p |
| 1966 | ping_background, |
| 1967 | ping_trans_color; |
| 1968 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1969 | png_info |
| 1970 | *end_info, |
| 1971 | *ping_info; |
| 1972 | |
| 1973 | png_struct |
| 1974 | *ping; |
| 1975 | |
| 1976 | png_textp |
| 1977 | text; |
| 1978 | |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 1979 | png_uint_32 |
| 1980 | ping_height, |
| 1981 | ping_width, |
glennrp | 4eb3931 | 2011-03-30 21:34:55 +0000 | [diff] [blame] | 1982 | x_resolution, |
| 1983 | y_resolution; |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 1984 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 1985 | QuantumInfo |
| 1986 | *quantum_info; |
| 1987 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1988 | ssize_t |
cristy | 756ae43 | 2011-11-19 02:18:25 +0000 | [diff] [blame] | 1989 | ping_rowbytes, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1990 | y; |
| 1991 | |
| 1992 | register unsigned char |
| 1993 | *p; |
| 1994 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1995 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1996 | i, |
| 1997 | x; |
| 1998 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 1999 | register Quantum |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2000 | *q; |
| 2001 | |
| 2002 | size_t |
glennrp | 39992b4 | 2010-11-14 00:03:43 +0000 | [diff] [blame] | 2003 | length, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2004 | row_offset; |
| 2005 | |
cristy | eb3b22a | 2011-03-31 20:16:11 +0000 | [diff] [blame] | 2006 | ssize_t |
| 2007 | j; |
| 2008 | |
cristy | 75fc68f | 2012-10-08 16:26:00 +0000 | [diff] [blame] | 2009 | unsigned char |
cristy | 0997332 | 2013-06-30 21:06:30 +0000 | [diff] [blame] | 2010 | *ping_pixels; |
cristy | 55b78b5 | 2012-10-08 14:01:27 +0000 | [diff] [blame] | 2011 | |
glennrp | 629960f | 2012-05-29 19:13:52 +0000 | [diff] [blame] | 2012 | #ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2013 | png_byte unused_chunks[]= |
| 2014 | { |
| 2015 | 104, 73, 83, 84, (png_byte) '\0', /* hIST */ |
| 2016 | 105, 84, 88, 116, (png_byte) '\0', /* iTXt */ |
| 2017 | 112, 67, 65, 76, (png_byte) '\0', /* pCAL */ |
| 2018 | 115, 67, 65, 76, (png_byte) '\0', /* sCAL */ |
| 2019 | 115, 80, 76, 84, (png_byte) '\0', /* sPLT */ |
dirk | fd6fd07 | 2014-10-24 21:10:08 +0000 | [diff] [blame] | 2020 | #if !defined(PNG_tIME_SUPPORTED) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2021 | 116, 73, 77, 69, (png_byte) '\0', /* tIME */ |
dirk | fd6fd07 | 2014-10-24 21:10:08 +0000 | [diff] [blame] | 2022 | #endif |
glennrp | 629960f | 2012-05-29 19:13:52 +0000 | [diff] [blame] | 2023 | #ifdef PNG_APNG_SUPPORTED /* libpng was built with APNG patch; */ |
| 2024 | /* ignore the APNG chunks */ |
| 2025 | 97, 99, 84, 76, (png_byte) '\0', /* acTL */ |
| 2026 | 102, 99, 84, 76, (png_byte) '\0', /* fcTL */ |
| 2027 | 102, 100, 65, 84, (png_byte) '\0', /* fdAT */ |
| 2028 | #endif |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2029 | }; |
| 2030 | #endif |
| 2031 | |
glennrp | d0cae25 | 2013-03-15 22:30:41 +0000 | [diff] [blame] | 2032 | /* Define these outside of the following "if logging()" block so they will |
| 2033 | * show in debuggers. |
| 2034 | */ |
| 2035 | *im_vers='\0'; |
| 2036 | (void) ConcatenateMagickString(im_vers, |
glennrp | ec0ddbc | 2013-03-16 12:40:12 +0000 | [diff] [blame] | 2037 | MagickLibVersionText,32); |
glennrp | d0cae25 | 2013-03-15 22:30:41 +0000 | [diff] [blame] | 2038 | (void) ConcatenateMagickString(im_vers, |
glennrp | ec0ddbc | 2013-03-16 12:40:12 +0000 | [diff] [blame] | 2039 | MagickLibAddendum,32); |
| 2040 | |
glennrp | d0cae25 | 2013-03-15 22:30:41 +0000 | [diff] [blame] | 2041 | *libpng_vers='\0'; |
| 2042 | (void) ConcatenateMagickString(libpng_vers, |
glennrp | ec0ddbc | 2013-03-16 12:40:12 +0000 | [diff] [blame] | 2043 | PNG_LIBPNG_VER_STRING,32); |
| 2044 | *libpng_runv='\0'; |
| 2045 | (void) ConcatenateMagickString(libpng_runv, |
| 2046 | png_get_libpng_ver(NULL),32); |
| 2047 | |
glennrp | d0cae25 | 2013-03-15 22:30:41 +0000 | [diff] [blame] | 2048 | *zlib_vers='\0'; |
| 2049 | (void) ConcatenateMagickString(zlib_vers, |
glennrp | ec0ddbc | 2013-03-16 12:40:12 +0000 | [diff] [blame] | 2050 | ZLIB_VERSION,32); |
| 2051 | *zlib_runv='\0'; |
| 2052 | (void) ConcatenateMagickString(zlib_runv, |
| 2053 | zlib_version,32); |
| 2054 | |
glennrp | 2dd1906 | 2014-07-28 00:22:24 +0000 | [diff] [blame] | 2055 | logging=LogMagickEvent(CoderEvent,GetMagickModule(), |
| 2056 | " Enter ReadOnePNGImage()\n" |
| 2057 | " IM version = %s\n" |
| 2058 | " Libpng version = %s", |
| 2059 | im_vers, libpng_vers); |
| 2060 | |
| 2061 | if (logging != MagickFalse) |
| 2062 | { |
| 2063 | if (LocaleCompare(libpng_vers,libpng_runv) != 0) |
glennrp | d0cae25 | 2013-03-15 22:30:41 +0000 | [diff] [blame] | 2064 | { |
glennrp | 2dd1906 | 2014-07-28 00:22:24 +0000 | [diff] [blame] | 2065 | LogMagickEvent(CoderEvent,GetMagickModule()," running with %s", |
| 2066 | libpng_runv); |
glennrp | d0cae25 | 2013-03-15 22:30:41 +0000 | [diff] [blame] | 2067 | } |
glennrp | 2dd1906 | 2014-07-28 00:22:24 +0000 | [diff] [blame] | 2068 | LogMagickEvent(CoderEvent,GetMagickModule()," Zlib version = %s", |
| 2069 | zlib_vers); |
| 2070 | if (LocaleCompare(zlib_vers,zlib_runv) != 0) |
| 2071 | { |
| 2072 | LogMagickEvent(CoderEvent,GetMagickModule()," running with %s", |
| 2073 | zlib_runv); |
| 2074 | } |
| 2075 | } |
glennrp | d0cae25 | 2013-03-15 22:30:41 +0000 | [diff] [blame] | 2076 | |
glennrp | 25c1e2b | 2010-03-25 01:39:56 +0000 | [diff] [blame] | 2077 | #if (PNG_LIBPNG_VER < 10200) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2078 | if (image_info->verbose) |
| 2079 | printf("Your PNG library (libpng-%s) is rather old.\n", |
| 2080 | PNG_LIBPNG_VER_STRING); |
| 2081 | #endif |
| 2082 | |
glennrp | 61b4c95 | 2009-11-10 20:40:41 +0000 | [diff] [blame] | 2083 | #if (PNG_LIBPNG_VER >= 10400) |
| 2084 | # ifndef PNG_TRANSFORM_GRAY_TO_RGB /* Added at libpng-1.4.0beta67 */ |
| 2085 | if (image_info->verbose) |
| 2086 | { |
| 2087 | printf("Your PNG library (libpng-%s) is an old beta version.\n", |
| 2088 | PNG_LIBPNG_VER_STRING); |
| 2089 | printf("Please update it.\n"); |
| 2090 | } |
| 2091 | # endif |
| 2092 | #endif |
| 2093 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 2094 | |
| 2095 | quantum_info = (QuantumInfo *) NULL; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2096 | image=mng_info->image; |
| 2097 | |
glennrp | a6a0663 | 2011-01-19 15:15:34 +0000 | [diff] [blame] | 2098 | if (logging != MagickFalse) |
glennrp | 98b83d4 | 2012-07-23 02:50:31 +0000 | [diff] [blame] | 2099 | { |
glennrp | a6a0663 | 2011-01-19 15:15:34 +0000 | [diff] [blame] | 2100 | (void)LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 2dd1906 | 2014-07-28 00:22:24 +0000 | [diff] [blame] | 2101 | " Before reading:\n" |
| 2102 | " image->alpha_trait=%d" |
| 2103 | " image->rendering_intent=%d\n" |
| 2104 | " image->colorspace=%d\n" |
| 2105 | " image->gamma=%f", |
| 2106 | (int) image->alpha_trait, (int) image->rendering_intent, |
| 2107 | (int) image->colorspace, image->gamma); |
glennrp | 98b83d4 | 2012-07-23 02:50:31 +0000 | [diff] [blame] | 2108 | } |
| 2109 | intent=Magick_RenderingIntent_to_PNG_RenderingIntent(image->rendering_intent); |
| 2110 | |
glennrp | 0e31973 | 2011-01-25 21:53:13 +0000 | [diff] [blame] | 2111 | /* Set to an out-of-range color unless tRNS chunk is present */ |
| 2112 | transparent_color.red=65537; |
| 2113 | transparent_color.green=65537; |
| 2114 | transparent_color.blue=65537; |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 2115 | transparent_color.alpha=65537; |
glennrp | 0e31973 | 2011-01-25 21:53:13 +0000 | [diff] [blame] | 2116 | |
glennrp | 913f961 | 2012-06-27 17:50:00 +0000 | [diff] [blame] | 2117 | number_colors=0; |
glennrp | cb395ac | 2011-03-30 19:50:23 +0000 | [diff] [blame] | 2118 | num_text = 0; |
glennrp | 4eb3931 | 2011-03-30 21:34:55 +0000 | [diff] [blame] | 2119 | num_text_total = 0; |
glennrp | cb395ac | 2011-03-30 19:50:23 +0000 | [diff] [blame] | 2120 | num_raw_profiles = 0; |
| 2121 | |
glennrp | 98b83d4 | 2012-07-23 02:50:31 +0000 | [diff] [blame] | 2122 | ping_found_cHRM = MagickFalse; |
| 2123 | ping_found_gAMA = MagickFalse; |
| 2124 | ping_found_iCCP = MagickFalse; |
| 2125 | ping_found_sRGB = MagickFalse; |
glennrp | 4b91759 | 2013-06-20 19:53:59 +0000 | [diff] [blame] | 2126 | ping_found_sRGB_cHRM = MagickFalse; |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 2127 | ping_preserve_iCCP = MagickFalse; |
| 2128 | |
glennrp | 98b83d4 | 2012-07-23 02:50:31 +0000 | [diff] [blame] | 2129 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2130 | /* |
| 2131 | Allocate the PNG structures |
| 2132 | */ |
| 2133 | #ifdef PNG_USER_MEM_SUPPORTED |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 2134 | error_info.image=image; |
| 2135 | error_info.exception=exception; |
glennrp | 3e0971d | 2014-11-06 12:59:43 +0000 | [diff] [blame] | 2136 | ping=png_create_read_struct_2(PNG_LIBPNG_VER_STRING,&error_info, |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 2137 | MagickPNGErrorHandler,MagickPNGWarningHandler, NULL, |
| 2138 | (png_malloc_ptr) Magick_png_malloc,(png_free_ptr) Magick_png_free); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2139 | #else |
glennrp | 3e0971d | 2014-11-06 12:59:43 +0000 | [diff] [blame] | 2140 | ping=png_create_read_struct(PNG_LIBPNG_VER_STRING,&error_info, |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 2141 | MagickPNGErrorHandler,MagickPNGWarningHandler); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2142 | #endif |
| 2143 | if (ping == (png_struct *) NULL) |
| 2144 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2145 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2146 | ping_info=png_create_info_struct(ping); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2147 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2148 | if (ping_info == (png_info *) NULL) |
| 2149 | { |
| 2150 | png_destroy_read_struct(&ping,(png_info **) NULL,(png_info **) NULL); |
| 2151 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
| 2152 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2153 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2154 | end_info=png_create_info_struct(ping); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2155 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2156 | if (end_info == (png_info *) NULL) |
| 2157 | { |
| 2158 | png_destroy_read_struct(&ping,&ping_info,(png_info **) NULL); |
| 2159 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
| 2160 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2161 | |
cristy | 0997332 | 2013-06-30 21:06:30 +0000 | [diff] [blame] | 2162 | pixel_info=(MemoryInfo *) NULL; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2163 | |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2164 | if (setjmp(png_jmpbuf(ping))) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2165 | { |
| 2166 | /* |
| 2167 | PNG image is corrupt. |
| 2168 | */ |
| 2169 | png_destroy_read_struct(&ping,&ping_info,&end_info); |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 2170 | |
glennrp | 868fff3 | 2014-03-16 22:09:06 +0000 | [diff] [blame] | 2171 | #ifdef IMPNG_SETJMP_NOT_THREAD_SAFE |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 2172 | UnlockSemaphoreInfo(ping_semaphore); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2173 | #endif |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 2174 | |
cristy | 0997332 | 2013-06-30 21:06:30 +0000 | [diff] [blame] | 2175 | if (pixel_info != (MemoryInfo *) NULL) |
| 2176 | pixel_info=RelinquishVirtualMemory(pixel_info); |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 2177 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2178 | if (logging != MagickFalse) |
| 2179 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 2180 | " exit ReadOnePNGImage() with error."); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2181 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2182 | if (image != (Image *) NULL) |
dirk | 057a5d2 | 2015-04-21 21:05:39 +0000 | [diff] [blame] | 2183 | { |
| 2184 | const char |
| 2185 | *option; |
| 2186 | |
| 2187 | option=GetImageOption(image_info,"png:preserve-corrupt-image"); |
| 2188 | if (IsStringTrue(option) == MagickFalse) |
| 2189 | image->columns=0; |
| 2190 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2191 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2192 | return(GetFirstImageInList(image)); |
| 2193 | } |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 2194 | |
| 2195 | /* { For navigation to end of SETJMP-protected block. Within this |
| 2196 | * block, use png_error() instead of Throwing an Exception, to ensure |
| 2197 | * that libpng is able to clean up, and that the semaphore is unlocked. |
| 2198 | */ |
| 2199 | |
glennrp | 868fff3 | 2014-03-16 22:09:06 +0000 | [diff] [blame] | 2200 | #ifdef IMPNG_SETJMP_NOT_THREAD_SAFE |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 2201 | LockSemaphoreInfo(ping_semaphore); |
| 2202 | #endif |
| 2203 | |
glennrp | 943b7d3 | 2013-04-21 00:40:38 +0000 | [diff] [blame] | 2204 | #ifdef PNG_BENIGN_ERRORS_SUPPORTED |
glennrp | a3a5f95 | 2013-04-17 12:58:15 +0000 | [diff] [blame] | 2205 | /* Allow benign errors */ |
| 2206 | png_set_benign_errors(ping, 1); |
| 2207 | #endif |
| 2208 | |
dirk | f9eb204 | 2015-10-22 13:22:42 +0200 | [diff] [blame] | 2209 | #ifdef PNG_SET_USER_LIMITS_SUPPORTED |
| 2210 | /* Reject images with too many rows or columns */ |
| 2211 | png_set_user_limits(ping, |
| 2212 | (png_uint_32) MagickMin(0x7fffffffL, |
| 2213 | GetMagickResourceLimit(WidthResource)), |
| 2214 | (png_uint_32) MagickMin(0x7fffffffL, |
| 2215 | GetMagickResourceLimit(HeightResource))); |
| 2216 | #endif /* PNG_SET_USER_LIMITS_SUPPORTED */ |
| 2217 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2218 | /* |
| 2219 | Prepare PNG for reading. |
| 2220 | */ |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2221 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2222 | mng_info->image_found++; |
| 2223 | png_set_sig_bytes(ping,8); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2224 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2225 | if (LocaleCompare(image_info->magick,"MNG") == 0) |
| 2226 | { |
| 2227 | #if defined(PNG_MNG_FEATURES_SUPPORTED) |
| 2228 | (void) png_permit_mng_features(ping,PNG_ALL_MNG_FEATURES); |
| 2229 | png_set_read_fn(ping,image,png_get_data); |
| 2230 | #else |
| 2231 | #if defined(PNG_READ_EMPTY_PLTE_SUPPORTED) |
| 2232 | png_permit_empty_plte(ping,MagickTrue); |
| 2233 | png_set_read_fn(ping,image,png_get_data); |
| 2234 | #else |
| 2235 | mng_info->image=image; |
| 2236 | mng_info->bytes_in_read_buffer=0; |
| 2237 | mng_info->found_empty_plte=MagickFalse; |
| 2238 | mng_info->have_saved_bkgd_index=MagickFalse; |
| 2239 | png_set_read_fn(ping,mng_info,mng_get_data); |
| 2240 | #endif |
| 2241 | #endif |
| 2242 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2243 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2244 | else |
| 2245 | png_set_read_fn(ping,image,png_get_data); |
| 2246 | |
glennrp | e604a75 | 2014-06-28 02:24:30 +0000 | [diff] [blame] | 2247 | { |
| 2248 | const char |
| 2249 | *value; |
| 2250 | |
| 2251 | value=GetImageOption(image_info,"profile:skip"); |
| 2252 | |
| 2253 | if (IsOptionMember("ICC",value) == MagickFalse) |
| 2254 | { |
| 2255 | |
| 2256 | value=GetImageOption(image_info,"png:preserve-iCCP"); |
| 2257 | |
| 2258 | if (value == NULL) |
| 2259 | value=GetImageArtifact(image,"png:preserve-iCCP"); |
| 2260 | |
| 2261 | if (value != NULL) |
| 2262 | ping_preserve_iCCP=MagickTrue; |
glennrp | 201f0c9 | 2014-06-28 16:13:49 +0000 | [diff] [blame] | 2263 | |
| 2264 | #if defined(PNG_SKIP_sRGB_CHECK_PROFILE) && defined(PNG_SET_OPTION_SUPPORTED) |
| 2265 | /* Don't let libpng check for ICC/sRGB profile because we're going |
| 2266 | * to do that anyway. This feature was added at libpng-1.6.12. |
glennrp | cf45b20 | 2014-06-29 16:46:17 +0000 | [diff] [blame] | 2267 | * If logging, go ahead and check and issue a warning as appropriate. |
glennrp | 201f0c9 | 2014-06-28 16:13:49 +0000 | [diff] [blame] | 2268 | */ |
glennrp | cf45b20 | 2014-06-29 16:46:17 +0000 | [diff] [blame] | 2269 | if (logging == MagickFalse) |
| 2270 | png_set_option(ping, PNG_SKIP_sRGB_CHECK_PROFILE, PNG_OPTION_ON); |
glennrp | 201f0c9 | 2014-06-28 16:13:49 +0000 | [diff] [blame] | 2271 | #endif |
glennrp | e604a75 | 2014-06-28 02:24:30 +0000 | [diff] [blame] | 2272 | } |
| 2273 | #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) |
| 2274 | else |
| 2275 | { |
| 2276 | png_set_keep_unknown_chunks(ping, 1, mng_iCCP, 1); |
| 2277 | } |
| 2278 | #endif |
| 2279 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2280 | #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) |
| 2281 | /* Ignore unused chunks and all unknown chunks except for vpAg */ |
glennrp | 2ad7015 | 2013-03-03 00:44:57 +0000 | [diff] [blame] | 2282 | #if PNG_LIBPNG_VER < 10700 /* Avoid libpng16 warning */ |
| 2283 | png_set_keep_unknown_chunks(ping, 2, NULL, 0); |
| 2284 | #else |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2285 | png_set_keep_unknown_chunks(ping, 1, NULL, 0); |
glennrp | 2ad7015 | 2013-03-03 00:44:57 +0000 | [diff] [blame] | 2286 | #endif |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2287 | png_set_keep_unknown_chunks(ping, 2, mng_vpAg, 1); |
| 2288 | png_set_keep_unknown_chunks(ping, 1, unused_chunks, |
| 2289 | (int)sizeof(unused_chunks)/5); |
| 2290 | /* Callback for other unknown chunks */ |
| 2291 | png_set_read_user_chunk_fn(ping, image, read_vpag_chunk_callback); |
| 2292 | #endif |
| 2293 | |
glennrp | 2feb141 | 2013-01-22 15:02:16 +0000 | [diff] [blame] | 2294 | #ifdef PNG_SET_USER_LIMITS_SUPPORTED |
glennrp | 09cd962 | 2013-01-22 15:17:38 +0000 | [diff] [blame] | 2295 | # if (PNG_LIBPNG_VER >= 10400) |
glennrp | 2feb141 | 2013-01-22 15:02:16 +0000 | [diff] [blame] | 2296 | /* Limit the size of the chunk storage cache used for sPLT, text, |
glennrp | 6873619 | 2013-01-24 06:32:08 +0000 | [diff] [blame] | 2297 | * and unknown chunks. |
glennrp | 2feb141 | 2013-01-22 15:02:16 +0000 | [diff] [blame] | 2298 | */ |
glennrp | 6873619 | 2013-01-24 06:32:08 +0000 | [diff] [blame] | 2299 | png_set_chunk_cache_max(ping, 32767); |
glennrp | 09cd962 | 2013-01-22 15:17:38 +0000 | [diff] [blame] | 2300 | # endif |
glennrp | 2feb141 | 2013-01-22 15:02:16 +0000 | [diff] [blame] | 2301 | #endif |
| 2302 | |
glennrp | 9bf97b6 | 2012-06-06 21:03:14 +0000 | [diff] [blame] | 2303 | #ifdef PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED |
| 2304 | /* Disable new libpng-1.5.10 feature */ |
| 2305 | png_set_check_for_invalid_index (ping, 0); |
| 2306 | #endif |
| 2307 | |
glennrp | 991e92a | 2010-01-28 03:09:00 +0000 | [diff] [blame] | 2308 | #if (PNG_LIBPNG_VER < 10400) |
| 2309 | # if defined(PNG_USE_PNGGCCRD) && defined(PNG_ASSEMBLER_CODE_SUPPORTED) && \ |
| 2310 | (PNG_LIBPNG_VER >= 10200) && (PNG_LIBPNG_VER < 10220) && defined(__i386__) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2311 | /* Disable thread-unsafe features of pnggccrd */ |
| 2312 | if (png_access_version_number() >= 10200) |
| 2313 | { |
| 2314 | png_uint_32 mmx_disable_mask=0; |
| 2315 | png_uint_32 asm_flags; |
| 2316 | |
| 2317 | mmx_disable_mask |= ( PNG_ASM_FLAG_MMX_READ_COMBINE_ROW \ |
| 2318 | | PNG_ASM_FLAG_MMX_READ_FILTER_SUB \ |
| 2319 | | PNG_ASM_FLAG_MMX_READ_FILTER_AVG \ |
| 2320 | | PNG_ASM_FLAG_MMX_READ_FILTER_PAETH ); |
| 2321 | asm_flags=png_get_asm_flags(ping); |
| 2322 | png_set_asm_flags(ping, asm_flags & ~mmx_disable_mask); |
| 2323 | } |
glennrp | 991e92a | 2010-01-28 03:09:00 +0000 | [diff] [blame] | 2324 | # endif |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2325 | #endif |
| 2326 | |
| 2327 | png_read_info(ping,ping_info); |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2328 | |
| 2329 | png_get_IHDR(ping,ping_info,&ping_width,&ping_height, |
| 2330 | &ping_bit_depth,&ping_color_type, |
| 2331 | &ping_interlace_method,&ping_compression_method, |
| 2332 | &ping_filter_method); |
| 2333 | |
glennrp | fcf0616 | 2012-11-05 14:57:08 +0000 | [diff] [blame] | 2334 | ping_file_depth = ping_bit_depth; |
| 2335 | |
glennrp | 0d76772 | 2014-01-17 16:08:31 +0000 | [diff] [blame] | 2336 | /* Swap bytes if requested */ |
| 2337 | if (ping_file_depth == 16) |
| 2338 | { |
| 2339 | const char |
glennrp | a3d5f0e | 2014-01-30 18:58:51 +0000 | [diff] [blame] | 2340 | *value; |
glennrp | 6647b97 | 2015-01-12 04:39:14 +0000 | [diff] [blame] | 2341 | |
glennrp | a3d5f0e | 2014-01-30 18:58:51 +0000 | [diff] [blame] | 2342 | value=GetImageOption(image_info,"png:swap-bytes"); |
glennrp | 6647b97 | 2015-01-12 04:39:14 +0000 | [diff] [blame] | 2343 | |
glennrp | a3d5f0e | 2014-01-30 18:58:51 +0000 | [diff] [blame] | 2344 | if (value == NULL) |
| 2345 | value=GetImageArtifact(image,"png:swap-bytes"); |
glennrp | 6647b97 | 2015-01-12 04:39:14 +0000 | [diff] [blame] | 2346 | |
glennrp | a3d5f0e | 2014-01-30 18:58:51 +0000 | [diff] [blame] | 2347 | if (value != NULL) |
| 2348 | png_set_swap(ping); |
glennrp | 0d76772 | 2014-01-17 16:08:31 +0000 | [diff] [blame] | 2349 | } |
| 2350 | |
glennrp | 5830fbc | 2013-01-27 06:11:45 +0000 | [diff] [blame] | 2351 | /* Save bit-depth and color-type in case we later want to write a PNG00 */ |
| 2352 | { |
| 2353 | char |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2354 | msg[MagickPathExtent]; |
glennrp | 5830fbc | 2013-01-27 06:11:45 +0000 | [diff] [blame] | 2355 | |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2356 | (void) FormatLocaleString(msg,MagickPathExtent,"%d",(int) ping_color_type); |
glennrp | 3398b5b | 2013-05-03 23:10:31 +0000 | [diff] [blame] | 2357 | (void) SetImageProperty(image,"png:IHDR.color-type-orig",msg,exception); |
glennrp | 5830fbc | 2013-01-27 06:11:45 +0000 | [diff] [blame] | 2358 | |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2359 | (void) FormatLocaleString(msg,MagickPathExtent,"%d",(int) ping_bit_depth); |
glennrp | 3398b5b | 2013-05-03 23:10:31 +0000 | [diff] [blame] | 2360 | (void) SetImageProperty(image,"png:IHDR.bit-depth-orig",msg,exception); |
glennrp | 5830fbc | 2013-01-27 06:11:45 +0000 | [diff] [blame] | 2361 | } |
| 2362 | |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2363 | (void) png_get_tRNS(ping, ping_info, &ping_trans_alpha, &ping_num_trans, |
| 2364 | &ping_trans_color); |
| 2365 | |
| 2366 | (void) png_get_bKGD(ping, ping_info, &ping_background); |
| 2367 | |
| 2368 | if (ping_bit_depth < 8) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2369 | { |
glennrp | fcf0616 | 2012-11-05 14:57:08 +0000 | [diff] [blame] | 2370 | png_set_packing(ping); |
| 2371 | ping_bit_depth = 8; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2372 | } |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2373 | |
| 2374 | image->depth=ping_bit_depth; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2375 | image->depth=GetImageQuantumDepth(image,MagickFalse); |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2376 | image->interlace=ping_interlace_method != 0 ? PNGInterlace : NoInterlace; |
glennrp | 98b83d4 | 2012-07-23 02:50:31 +0000 | [diff] [blame] | 2377 | |
cristy | 176b29a | 2012-06-21 13:35:15 +0000 | [diff] [blame] | 2378 | if (((int) ping_color_type == PNG_COLOR_TYPE_GRAY) || |
| 2379 | ((int) ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA)) |
| 2380 | { |
| 2381 | image->rendering_intent=UndefinedIntent; |
glennrp | 98b83d4 | 2012-07-23 02:50:31 +0000 | [diff] [blame] | 2382 | intent=Magick_RenderingIntent_to_PNG_RenderingIntent(UndefinedIntent); |
cristy | 176b29a | 2012-06-21 13:35:15 +0000 | [diff] [blame] | 2383 | (void) ResetMagickMemory(&image->chromaticity,0, |
| 2384 | sizeof(image->chromaticity)); |
| 2385 | } |
glennrp | 98b83d4 | 2012-07-23 02:50:31 +0000 | [diff] [blame] | 2386 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2387 | if (logging != MagickFalse) |
| 2388 | { |
| 2389 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 2dd1906 | 2014-07-28 00:22:24 +0000 | [diff] [blame] | 2390 | " PNG width: %.20g, height: %.20g\n" |
| 2391 | " PNG color_type: %d, bit_depth: %d\n" |
| 2392 | " PNG compression_method: %d\n" |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2393 | " PNG interlace_method: %d, filter_method: %d", |
glennrp | 2dd1906 | 2014-07-28 00:22:24 +0000 | [diff] [blame] | 2394 | (double) ping_width, (double) ping_height, |
| 2395 | ping_color_type, ping_bit_depth, |
| 2396 | ping_compression_method, |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2397 | ping_interlace_method,ping_filter_method); |
glennrp | 2dd1906 | 2014-07-28 00:22:24 +0000 | [diff] [blame] | 2398 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2399 | } |
| 2400 | |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 2401 | if (png_get_valid(ping,ping_info, PNG_INFO_iCCP)) |
| 2402 | { |
| 2403 | ping_found_iCCP=MagickTrue; |
| 2404 | if (logging != MagickFalse) |
| 2405 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 2406 | " Found PNG iCCP chunk."); |
| 2407 | } |
| 2408 | |
glennrp | 98b83d4 | 2012-07-23 02:50:31 +0000 | [diff] [blame] | 2409 | if (png_get_valid(ping,ping_info,PNG_INFO_gAMA)) |
| 2410 | { |
| 2411 | ping_found_gAMA=MagickTrue; |
| 2412 | if (logging != MagickFalse) |
| 2413 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 2414 | " Found PNG gAMA chunk."); |
| 2415 | } |
| 2416 | |
| 2417 | if (png_get_valid(ping,ping_info,PNG_INFO_cHRM)) |
| 2418 | { |
| 2419 | ping_found_cHRM=MagickTrue; |
| 2420 | if (logging != MagickFalse) |
| 2421 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 2422 | " Found PNG cHRM chunk."); |
| 2423 | } |
| 2424 | |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 2425 | if (ping_found_iCCP != MagickTrue && png_get_valid(ping,ping_info, |
| 2426 | PNG_INFO_sRGB)) |
glennrp | 98b83d4 | 2012-07-23 02:50:31 +0000 | [diff] [blame] | 2427 | { |
| 2428 | ping_found_sRGB=MagickTrue; |
| 2429 | if (logging != MagickFalse) |
| 2430 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 2431 | " Found PNG sRGB chunk."); |
| 2432 | } |
| 2433 | |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2434 | #ifdef PNG_READ_iCCP_SUPPORTED |
glennrp | e604a75 | 2014-06-28 02:24:30 +0000 | [diff] [blame] | 2435 | if (ping_found_iCCP !=MagickTrue && |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 2436 | ping_found_sRGB != MagickTrue && |
| 2437 | png_get_valid(ping,ping_info, PNG_INFO_iCCP)) |
| 2438 | { |
| 2439 | ping_found_iCCP=MagickTrue; |
| 2440 | if (logging != MagickFalse) |
| 2441 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 2442 | " Found PNG iCCP chunk."); |
| 2443 | } |
| 2444 | |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2445 | if (png_get_valid(ping,ping_info,PNG_INFO_iCCP)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2446 | { |
| 2447 | int |
| 2448 | compression; |
| 2449 | |
glennrp | e4017e3 | 2011-01-08 17:16:09 +0000 | [diff] [blame] | 2450 | #if (PNG_LIBPNG_VER < 10500) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2451 | png_charp |
glennrp | e4017e3 | 2011-01-08 17:16:09 +0000 | [diff] [blame] | 2452 | info; |
| 2453 | #else |
| 2454 | png_bytep |
| 2455 | info; |
| 2456 | #endif |
| 2457 | |
| 2458 | png_charp |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2459 | name; |
| 2460 | |
| 2461 | png_uint_32 |
| 2462 | profile_length; |
| 2463 | |
| 2464 | (void) png_get_iCCP(ping,ping_info,&name,(int *) &compression,&info, |
| 2465 | &profile_length); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2466 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2467 | if (profile_length != 0) |
| 2468 | { |
| 2469 | StringInfo |
| 2470 | *profile; |
| 2471 | |
| 2472 | if (logging != MagickFalse) |
| 2473 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 2474 | " Reading PNG iCCP chunk."); |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 2475 | |
cristy | e8f8f38 | 2011-09-01 13:32:37 +0000 | [diff] [blame] | 2476 | profile=BlobToStringInfo(info,profile_length); |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 2477 | |
cristy | e8f8f38 | 2011-09-01 13:32:37 +0000 | [diff] [blame] | 2478 | if (profile == (StringInfo *) NULL) |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 2479 | { |
| 2480 | png_warning(ping, "ICC profile is NULL"); |
| 2481 | profile=DestroyStringInfo(profile); |
| 2482 | } |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 2483 | else |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 2484 | { |
| 2485 | if (ping_preserve_iCCP == MagickFalse) |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 2486 | { |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 2487 | int |
| 2488 | icheck, |
| 2489 | got_crc=0; |
| 2490 | |
| 2491 | |
| 2492 | png_uint_32 |
| 2493 | length, |
| 2494 | profile_crc=0; |
| 2495 | |
| 2496 | unsigned char |
| 2497 | *data; |
| 2498 | |
| 2499 | length=(png_uint_32) GetStringInfoLength(profile); |
| 2500 | |
| 2501 | for (icheck=0; sRGB_info[icheck].len > 0; icheck++) |
| 2502 | { |
| 2503 | if (length == sRGB_info[icheck].len) |
| 2504 | { |
| 2505 | if (got_crc == 0) |
| 2506 | { |
| 2507 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 2508 | " Got a %lu-byte ICC profile (potentially sRGB)", |
| 2509 | (unsigned long) length); |
| 2510 | |
| 2511 | data=GetStringInfoDatum(profile); |
| 2512 | profile_crc=crc32(0,data,length); |
| 2513 | |
| 2514 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 2515 | " with crc=%8x",(unsigned int) profile_crc); |
| 2516 | got_crc++; |
| 2517 | } |
| 2518 | |
| 2519 | if (profile_crc == sRGB_info[icheck].crc) |
| 2520 | { |
| 2521 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 2522 | " It is sRGB with rendering intent = %s", |
| 2523 | Magick_RenderingIntentString_from_PNG_RenderingIntent( |
| 2524 | sRGB_info[icheck].intent)); |
| 2525 | if (image->rendering_intent==UndefinedIntent) |
| 2526 | { |
| 2527 | image->rendering_intent= |
| 2528 | Magick_RenderingIntent_from_PNG_RenderingIntent( |
| 2529 | sRGB_info[icheck].intent); |
| 2530 | } |
| 2531 | break; |
| 2532 | } |
| 2533 | } |
| 2534 | } |
| 2535 | if (sRGB_info[icheck].len == 0) |
| 2536 | { |
| 2537 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 2538 | " Got a %lu-byte ICC profile not recognized as sRGB", |
| 2539 | (unsigned long) length); |
| 2540 | (void) SetImageProfile(image,"icc",profile,exception); |
| 2541 | } |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 2542 | } |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 2543 | else /* Preserve-iCCP */ |
| 2544 | { |
| 2545 | (void) SetImageProfile(image,"icc",profile,exception); |
| 2546 | } |
| 2547 | |
| 2548 | profile=DestroyStringInfo(profile); |
| 2549 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2550 | } |
| 2551 | } |
| 2552 | #endif |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 2553 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2554 | #if defined(PNG_READ_sRGB_SUPPORTED) |
| 2555 | { |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 2556 | if (ping_found_iCCP==MagickFalse && png_get_valid(ping,ping_info, |
| 2557 | PNG_INFO_sRGB)) |
| 2558 | { |
| 2559 | if (png_get_sRGB(ping,ping_info,&intent)) |
cristy | 2ea7a8e | 2012-02-08 01:04:50 +0000 | [diff] [blame] | 2560 | { |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 2561 | if (image->rendering_intent == UndefinedIntent) |
| 2562 | image->rendering_intent= |
| 2563 | Magick_RenderingIntent_from_PNG_RenderingIntent (intent); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2564 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2565 | if (logging != MagickFalse) |
| 2566 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | e610a07 | 2010-08-05 17:08:46 +0000 | [diff] [blame] | 2567 | " Reading PNG sRGB chunk: rendering_intent: %d",intent); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2568 | } |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 2569 | } |
| 2570 | |
| 2571 | else if (mng_info->have_global_srgb) |
| 2572 | { |
| 2573 | if (image->rendering_intent == UndefinedIntent) |
| 2574 | image->rendering_intent= |
| 2575 | Magick_RenderingIntent_from_PNG_RenderingIntent |
| 2576 | (mng_info->global_srgb_intent); |
| 2577 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2578 | } |
| 2579 | #endif |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 2580 | |
| 2581 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2582 | { |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2583 | if (!png_get_gAMA(ping,ping_info,&file_gamma)) |
| 2584 | if (mng_info->have_global_gama) |
| 2585 | png_set_gAMA(ping,ping_info,mng_info->global_gamma); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2586 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2587 | if (png_get_gAMA(ping,ping_info,&file_gamma)) |
| 2588 | { |
| 2589 | image->gamma=(float) file_gamma; |
| 2590 | if (logging != MagickFalse) |
| 2591 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 2592 | " Reading PNG gAMA chunk: gamma: %f",file_gamma); |
| 2593 | } |
| 2594 | } |
glennrp | 98b83d4 | 2012-07-23 02:50:31 +0000 | [diff] [blame] | 2595 | |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2596 | if (!png_get_valid(ping,ping_info,PNG_INFO_cHRM)) |
| 2597 | { |
| 2598 | if (mng_info->have_global_chrm != MagickFalse) |
| 2599 | { |
| 2600 | (void) png_set_cHRM(ping,ping_info, |
| 2601 | mng_info->global_chrm.white_point.x, |
| 2602 | mng_info->global_chrm.white_point.y, |
| 2603 | mng_info->global_chrm.red_primary.x, |
| 2604 | mng_info->global_chrm.red_primary.y, |
| 2605 | mng_info->global_chrm.green_primary.x, |
| 2606 | mng_info->global_chrm.green_primary.y, |
| 2607 | mng_info->global_chrm.blue_primary.x, |
| 2608 | mng_info->global_chrm.blue_primary.y); |
| 2609 | } |
| 2610 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2611 | |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2612 | if (png_get_valid(ping,ping_info,PNG_INFO_cHRM)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2613 | { |
| 2614 | (void) png_get_cHRM(ping,ping_info, |
| 2615 | &image->chromaticity.white_point.x, |
| 2616 | &image->chromaticity.white_point.y, |
| 2617 | &image->chromaticity.red_primary.x, |
| 2618 | &image->chromaticity.red_primary.y, |
| 2619 | &image->chromaticity.green_primary.x, |
| 2620 | &image->chromaticity.green_primary.y, |
| 2621 | &image->chromaticity.blue_primary.x, |
| 2622 | &image->chromaticity.blue_primary.y); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2623 | |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 2624 | ping_found_cHRM=MagickTrue; |
| 2625 | |
glennrp | 3d62786 | 2013-02-26 00:19:34 +0000 | [diff] [blame] | 2626 | if (image->chromaticity.red_primary.x>0.6399f && |
| 2627 | image->chromaticity.red_primary.x<0.6401f && |
| 2628 | image->chromaticity.red_primary.y>0.3299f && |
| 2629 | image->chromaticity.red_primary.y<0.3301f && |
| 2630 | image->chromaticity.green_primary.x>0.2999f && |
| 2631 | image->chromaticity.green_primary.x<0.3001f && |
| 2632 | image->chromaticity.green_primary.y>0.5999f && |
| 2633 | image->chromaticity.green_primary.y<0.6001f && |
| 2634 | image->chromaticity.blue_primary.x>0.1499f && |
| 2635 | image->chromaticity.blue_primary.x<0.1501f && |
| 2636 | image->chromaticity.blue_primary.y>0.0599f && |
| 2637 | image->chromaticity.blue_primary.y<0.0601f && |
| 2638 | image->chromaticity.white_point.x>0.3126f && |
| 2639 | image->chromaticity.white_point.x<0.3128f && |
| 2640 | image->chromaticity.white_point.y>0.3289f && |
| 2641 | image->chromaticity.white_point.y<0.3291f) |
| 2642 | ping_found_sRGB_cHRM=MagickTrue; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2643 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2644 | |
glennrp | e610a07 | 2010-08-05 17:08:46 +0000 | [diff] [blame] | 2645 | if (image->rendering_intent != UndefinedIntent) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2646 | { |
glennrp | 3d62786 | 2013-02-26 00:19:34 +0000 | [diff] [blame] | 2647 | if (ping_found_sRGB != MagickTrue && |
| 2648 | (ping_found_gAMA != MagickTrue || |
glennrp | 8428823 | 2013-03-02 15:52:36 +0000 | [diff] [blame] | 2649 | (image->gamma > .45 && image->gamma < .46)) && |
glennrp | 3d62786 | 2013-02-26 00:19:34 +0000 | [diff] [blame] | 2650 | (ping_found_cHRM != MagickTrue || |
cristy | cd8b331 | 2013-12-22 01:51:11 +0000 | [diff] [blame] | 2651 | ping_found_sRGB_cHRM != MagickFalse) && |
glennrp | 3d62786 | 2013-02-26 00:19:34 +0000 | [diff] [blame] | 2652 | ping_found_iCCP != MagickTrue) |
glennrp | 5cf1bff | 2013-01-16 02:44:03 +0000 | [diff] [blame] | 2653 | { |
| 2654 | png_set_sRGB(ping,ping_info, |
| 2655 | Magick_RenderingIntent_to_PNG_RenderingIntent |
| 2656 | (image->rendering_intent)); |
glennrp | 5cf1bff | 2013-01-16 02:44:03 +0000 | [diff] [blame] | 2657 | file_gamma=1.000f/2.200f; |
| 2658 | ping_found_sRGB=MagickTrue; |
glennrp | 8428823 | 2013-03-02 15:52:36 +0000 | [diff] [blame] | 2659 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 918b9dc | 2013-04-03 13:41:41 +0000 | [diff] [blame] | 2660 | " Setting sRGB as if in input"); |
glennrp | 5cf1bff | 2013-01-16 02:44:03 +0000 | [diff] [blame] | 2661 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2662 | } |
glennrp | 5cf1bff | 2013-01-16 02:44:03 +0000 | [diff] [blame] | 2663 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2664 | #if defined(PNG_oFFs_SUPPORTED) |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2665 | if (png_get_valid(ping,ping_info,PNG_INFO_oFFs)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2666 | { |
cristy | 905ef80 | 2011-02-23 00:29:18 +0000 | [diff] [blame] | 2667 | image->page.x=(ssize_t) png_get_x_offset_pixels(ping, ping_info); |
| 2668 | image->page.y=(ssize_t) png_get_y_offset_pixels(ping, ping_info); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2669 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2670 | if (logging != MagickFalse) |
| 2671 | if (image->page.x || image->page.y) |
| 2672 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 2673 | " Reading PNG oFFs chunk: x: %.20g, y: %.20g.",(double) |
| 2674 | image->page.x,(double) image->page.y); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2675 | } |
| 2676 | #endif |
| 2677 | #if defined(PNG_pHYs_SUPPORTED) |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2678 | if (!png_get_valid(ping,ping_info,PNG_INFO_pHYs)) |
| 2679 | { |
| 2680 | if (mng_info->have_global_phys) |
| 2681 | { |
| 2682 | png_set_pHYs(ping,ping_info, |
| 2683 | mng_info->global_x_pixels_per_unit, |
| 2684 | mng_info->global_y_pixels_per_unit, |
| 2685 | mng_info->global_phys_unit_type); |
| 2686 | } |
| 2687 | } |
| 2688 | |
cristy | 5c97f62 | 2014-01-15 12:36:09 +0000 | [diff] [blame] | 2689 | x_resolution=0; |
| 2690 | y_resolution=0; |
| 2691 | unit_type=0; |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2692 | if (png_get_valid(ping,ping_info,PNG_INFO_pHYs)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2693 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2694 | /* |
| 2695 | Set image resolution. |
| 2696 | */ |
| 2697 | (void) png_get_pHYs(ping,ping_info,&x_resolution,&y_resolution, |
cristy | 0881b52 | 2010-04-24 23:45:19 +0000 | [diff] [blame] | 2698 | &unit_type); |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 2699 | image->resolution.x=(double) x_resolution; |
| 2700 | image->resolution.y=(double) y_resolution; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2701 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2702 | if (unit_type == PNG_RESOLUTION_METER) |
| 2703 | { |
| 2704 | image->units=PixelsPerCentimeterResolution; |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 2705 | image->resolution.x=(double) x_resolution/100.0; |
| 2706 | image->resolution.y=(double) y_resolution/100.0; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2707 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2708 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2709 | if (logging != MagickFalse) |
| 2710 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 2711 | " Reading PNG pHYs chunk: xres: %.20g, yres: %.20g, units: %d.", |
| 2712 | (double) x_resolution,(double) y_resolution,unit_type); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2713 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2714 | #endif |
glennrp | 823b55c | 2011-03-14 18:46:46 +0000 | [diff] [blame] | 2715 | |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2716 | if (png_get_valid(ping,ping_info,PNG_INFO_PLTE)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2717 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2718 | png_colorp |
| 2719 | palette; |
| 2720 | |
| 2721 | (void) png_get_PLTE(ping,ping_info,&palette,&number_colors); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2722 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2723 | if ((number_colors == 0) && |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2724 | ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2725 | { |
| 2726 | if (mng_info->global_plte_length) |
| 2727 | { |
| 2728 | png_set_PLTE(ping,ping_info,mng_info->global_plte, |
| 2729 | (int) mng_info->global_plte_length); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2730 | |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2731 | if (!png_get_valid(ping,ping_info,PNG_INFO_tRNS)) |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 2732 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2733 | if (mng_info->global_trns_length) |
| 2734 | { |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 2735 | png_warning(ping, |
| 2736 | "global tRNS has more entries than global PLTE"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2737 | } |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 2738 | else |
| 2739 | { |
| 2740 | png_set_tRNS(ping,ping_info,mng_info->global_trns, |
| 2741 | (int) mng_info->global_trns_length,NULL); |
| 2742 | } |
| 2743 | } |
glennrp | bfd9e61 | 2011-04-22 14:02:20 +0000 | [diff] [blame] | 2744 | #ifdef PNG_READ_bKGD_SUPPORTED |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2745 | if ( |
| 2746 | #ifndef PNG_READ_EMPTY_PLTE_SUPPORTED |
| 2747 | mng_info->have_saved_bkgd_index || |
| 2748 | #endif |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2749 | png_get_valid(ping,ping_info,PNG_INFO_bKGD)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2750 | { |
| 2751 | png_color_16 |
| 2752 | background; |
| 2753 | |
| 2754 | #ifndef PNG_READ_EMPTY_PLTE_SUPPORTED |
| 2755 | if (mng_info->have_saved_bkgd_index) |
| 2756 | background.index=mng_info->saved_bkgd_index; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2757 | #endif |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2758 | if (png_get_valid(ping, ping_info, PNG_INFO_bKGD)) |
| 2759 | background.index=ping_background->index; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2760 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2761 | background.red=(png_uint_16) |
| 2762 | mng_info->global_plte[background.index].red; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2763 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2764 | background.green=(png_uint_16) |
| 2765 | mng_info->global_plte[background.index].green; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2766 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2767 | background.blue=(png_uint_16) |
| 2768 | mng_info->global_plte[background.index].blue; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2769 | |
glennrp | c6c391a | 2011-04-27 02:23:56 +0000 | [diff] [blame] | 2770 | background.gray=(png_uint_16) |
| 2771 | mng_info->global_plte[background.index].green; |
| 2772 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2773 | png_set_bKGD(ping,ping_info,&background); |
| 2774 | } |
| 2775 | #endif |
| 2776 | } |
| 2777 | else |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 2778 | png_error(ping,"No global PLTE in file"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2779 | } |
| 2780 | } |
| 2781 | |
glennrp | bfd9e61 | 2011-04-22 14:02:20 +0000 | [diff] [blame] | 2782 | #ifdef PNG_READ_bKGD_SUPPORTED |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2783 | if (mng_info->have_global_bkgd && |
| 2784 | (!png_get_valid(ping,ping_info,PNG_INFO_bKGD))) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2785 | image->background_color=mng_info->mng_global_bkgd; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2786 | |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2787 | if (png_get_valid(ping,ping_info,PNG_INFO_bKGD)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2788 | { |
glennrp | bfd9e61 | 2011-04-22 14:02:20 +0000 | [diff] [blame] | 2789 | unsigned int |
| 2790 | bkgd_scale; |
| 2791 | |
glennrp | 2dd1906 | 2014-07-28 00:22:24 +0000 | [diff] [blame] | 2792 | /* Set image background color. |
| 2793 | * Scale background components to 16-bit, then scale |
glennrp | bfd9e61 | 2011-04-22 14:02:20 +0000 | [diff] [blame] | 2794 | * to quantum depth |
| 2795 | */ |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2796 | |
glennrp | bfd9e61 | 2011-04-22 14:02:20 +0000 | [diff] [blame] | 2797 | bkgd_scale = 1; |
glennrp | 2cbb448 | 2010-06-02 04:37:24 +0000 | [diff] [blame] | 2798 | |
glennrp | fcf0616 | 2012-11-05 14:57:08 +0000 | [diff] [blame] | 2799 | if (ping_file_depth == 1) |
glennrp | bfd9e61 | 2011-04-22 14:02:20 +0000 | [diff] [blame] | 2800 | bkgd_scale = 255; |
glennrp | 2cbb448 | 2010-06-02 04:37:24 +0000 | [diff] [blame] | 2801 | |
glennrp | fcf0616 | 2012-11-05 14:57:08 +0000 | [diff] [blame] | 2802 | else if (ping_file_depth == 2) |
glennrp | bfd9e61 | 2011-04-22 14:02:20 +0000 | [diff] [blame] | 2803 | bkgd_scale = 85; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2804 | |
glennrp | fcf0616 | 2012-11-05 14:57:08 +0000 | [diff] [blame] | 2805 | else if (ping_file_depth == 4) |
glennrp | bfd9e61 | 2011-04-22 14:02:20 +0000 | [diff] [blame] | 2806 | bkgd_scale = 17; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2807 | |
glennrp | fcf0616 | 2012-11-05 14:57:08 +0000 | [diff] [blame] | 2808 | if (ping_file_depth <= 8) |
glennrp | bfd9e61 | 2011-04-22 14:02:20 +0000 | [diff] [blame] | 2809 | bkgd_scale *= 257; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2810 | |
glennrp | bfd9e61 | 2011-04-22 14:02:20 +0000 | [diff] [blame] | 2811 | ping_background->red *= bkgd_scale; |
| 2812 | ping_background->green *= bkgd_scale; |
| 2813 | ping_background->blue *= bkgd_scale; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2814 | |
glennrp | bfd9e61 | 2011-04-22 14:02:20 +0000 | [diff] [blame] | 2815 | if (logging != MagickFalse) |
| 2816 | { |
glennrp | 2dd1906 | 2014-07-28 00:22:24 +0000 | [diff] [blame] | 2817 | if (logging != MagickFalse) |
| 2818 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 2819 | " Reading PNG bKGD chunk, raw ping_background=(%d,%d,%d).\n" |
| 2820 | " bkgd_scale=%d. ping_background=(%d,%d,%d).", |
| 2821 | ping_background->red,ping_background->green, |
| 2822 | ping_background->blue, |
| 2823 | bkgd_scale,ping_background->red, |
| 2824 | ping_background->green,ping_background->blue); |
glennrp | bfd9e61 | 2011-04-22 14:02:20 +0000 | [diff] [blame] | 2825 | } |
glennrp | 2cbb448 | 2010-06-02 04:37:24 +0000 | [diff] [blame] | 2826 | |
glennrp | bfd9e61 | 2011-04-22 14:02:20 +0000 | [diff] [blame] | 2827 | image->background_color.red= |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2828 | ScaleShortToQuantum(ping_background->red); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2829 | |
glennrp | bfd9e61 | 2011-04-22 14:02:20 +0000 | [diff] [blame] | 2830 | image->background_color.green= |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2831 | ScaleShortToQuantum(ping_background->green); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2832 | |
glennrp | bfd9e61 | 2011-04-22 14:02:20 +0000 | [diff] [blame] | 2833 | image->background_color.blue= |
| 2834 | ScaleShortToQuantum(ping_background->blue); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2835 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 2836 | image->background_color.alpha=OpaqueAlpha; |
glennrp | 2cbb448 | 2010-06-02 04:37:24 +0000 | [diff] [blame] | 2837 | |
glennrp | bfd9e61 | 2011-04-22 14:02:20 +0000 | [diff] [blame] | 2838 | if (logging != MagickFalse) |
| 2839 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 2840 | " image->background_color=(%.20g,%.20g,%.20g).", |
| 2841 | (double) image->background_color.red, |
| 2842 | (double) image->background_color.green, |
| 2843 | (double) image->background_color.blue); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2844 | } |
glennrp | bfd9e61 | 2011-04-22 14:02:20 +0000 | [diff] [blame] | 2845 | #endif /* PNG_READ_bKGD_SUPPORTED */ |
glennrp | a6a0663 | 2011-01-19 15:15:34 +0000 | [diff] [blame] | 2846 | |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2847 | if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2848 | { |
| 2849 | /* |
glennrp | a6a0663 | 2011-01-19 15:15:34 +0000 | [diff] [blame] | 2850 | Image has a tRNS chunk. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2851 | */ |
| 2852 | int |
| 2853 | max_sample; |
| 2854 | |
cristy | 35ef824 | 2010-06-03 16:24:13 +0000 | [diff] [blame] | 2855 | size_t |
| 2856 | one=1; |
| 2857 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2858 | if (logging != MagickFalse) |
| 2859 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 2860 | " Reading PNG tRNS chunk."); |
| 2861 | |
glennrp | fcf0616 | 2012-11-05 14:57:08 +0000 | [diff] [blame] | 2862 | max_sample = (int) ((one << ping_file_depth) - 1); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2863 | |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2864 | if ((ping_color_type == PNG_COLOR_TYPE_GRAY && |
| 2865 | (int)ping_trans_color->gray > max_sample) || |
| 2866 | (ping_color_type == PNG_COLOR_TYPE_RGB && |
| 2867 | ((int)ping_trans_color->red > max_sample || |
| 2868 | (int)ping_trans_color->green > max_sample || |
| 2869 | (int)ping_trans_color->blue > max_sample))) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2870 | { |
| 2871 | if (logging != MagickFalse) |
| 2872 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 2873 | " Ignoring PNG tRNS chunk with out-of-range sample."); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2874 | png_free_data(ping, ping_info, PNG_FREE_TRNS, 0); |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2875 | png_set_invalid(ping,ping_info,PNG_INFO_tRNS); |
cristy | 8a46d82 | 2012-08-28 23:32:39 +0000 | [diff] [blame] | 2876 | image->alpha_trait=UndefinedPixelTrait; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2877 | } |
| 2878 | else |
| 2879 | { |
glennrp | a6a0663 | 2011-01-19 15:15:34 +0000 | [diff] [blame] | 2880 | int |
glennrp | 9b034ff | 2015-03-16 14:36:44 +0000 | [diff] [blame] | 2881 | scale_to_short; |
glennrp | a6a0663 | 2011-01-19 15:15:34 +0000 | [diff] [blame] | 2882 | |
glennrp | fcf0616 | 2012-11-05 14:57:08 +0000 | [diff] [blame] | 2883 | scale_to_short = 65535L/((1UL << ping_file_depth)-1); |
glennrp | a6a0663 | 2011-01-19 15:15:34 +0000 | [diff] [blame] | 2884 | |
| 2885 | /* Scale transparent_color to short */ |
| 2886 | transparent_color.red= scale_to_short*ping_trans_color->red; |
| 2887 | transparent_color.green= scale_to_short*ping_trans_color->green; |
| 2888 | transparent_color.blue= scale_to_short*ping_trans_color->blue; |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 2889 | transparent_color.alpha= scale_to_short*ping_trans_color->gray; |
glennrp | 05eb4a9 | 2010-07-08 02:21:09 +0000 | [diff] [blame] | 2890 | |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2891 | if (ping_color_type == PNG_COLOR_TYPE_GRAY) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2892 | { |
glennrp | 0f11198 | 2010-07-07 20:18:33 +0000 | [diff] [blame] | 2893 | if (logging != MagickFalse) |
| 2894 | { |
| 2895 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 2dd1906 | 2014-07-28 00:22:24 +0000 | [diff] [blame] | 2896 | " Raw tRNS graylevel = %d, scaled graylevel = %d.", |
| 2897 | (int) ping_trans_color->gray,(int) transparent_color.alpha); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2898 | |
glennrp | 0f11198 | 2010-07-07 20:18:33 +0000 | [diff] [blame] | 2899 | } |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 2900 | transparent_color.red=transparent_color.alpha; |
| 2901 | transparent_color.green=transparent_color.alpha; |
| 2902 | transparent_color.blue=transparent_color.alpha; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2903 | } |
| 2904 | } |
| 2905 | } |
| 2906 | #if defined(PNG_READ_sBIT_SUPPORTED) |
| 2907 | if (mng_info->have_global_sbit) |
| 2908 | { |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2909 | if (!png_get_valid(ping,ping_info,PNG_INFO_sBIT)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2910 | png_set_sBIT(ping,ping_info,&mng_info->global_sbit); |
| 2911 | } |
| 2912 | #endif |
| 2913 | num_passes=png_set_interlace_handling(ping); |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2914 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2915 | png_read_update_info(ping,ping_info); |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2916 | |
| 2917 | ping_rowbytes=png_get_rowbytes(ping,ping_info); |
| 2918 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2919 | /* |
| 2920 | Initialize image structure. |
| 2921 | */ |
| 2922 | mng_info->image_box.left=0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2923 | mng_info->image_box.right=(ssize_t) ping_width; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2924 | mng_info->image_box.top=0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2925 | mng_info->image_box.bottom=(ssize_t) ping_height; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2926 | if (mng_info->mng_type == 0) |
| 2927 | { |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2928 | mng_info->mng_width=ping_width; |
| 2929 | mng_info->mng_height=ping_height; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2930 | mng_info->frame=mng_info->image_box; |
| 2931 | mng_info->clip=mng_info->image_box; |
| 2932 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2933 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2934 | else |
| 2935 | { |
| 2936 | image->page.y=mng_info->y_off[mng_info->object_id]; |
| 2937 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 2938 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2939 | image->compression=ZipCompression; |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2940 | image->columns=ping_width; |
| 2941 | image->rows=ping_height; |
glennrp | a6c5d34 | 2012-05-14 13:21:17 +0000 | [diff] [blame] | 2942 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 2943 | if (((int) ping_color_type == PNG_COLOR_TYPE_GRAY) || |
| 2944 | ((int) ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA)) |
glennrp | 8d0bca5 | 2012-05-17 02:33:23 +0000 | [diff] [blame] | 2945 | { |
glennrp | 0a5b92c | 2014-03-16 22:08:03 +0000 | [diff] [blame] | 2946 | double |
| 2947 | image_gamma = image->gamma; |
| 2948 | |
| 2949 | (void)LogMagickEvent(CoderEvent,GetMagickModule(), |
| 2950 | " image->gamma=%f",(float) image_gamma); |
| 2951 | |
| 2952 | if (image_gamma > 0.75) |
glennrp | 8d0bca5 | 2012-05-17 02:33:23 +0000 | [diff] [blame] | 2953 | { |
glennrp | 0a5b92c | 2014-03-16 22:08:03 +0000 | [diff] [blame] | 2954 | /* Set image->rendering_intent to Undefined, |
glennrp | e88af77 | 2012-08-22 13:59:50 +0000 | [diff] [blame] | 2955 | * image->colorspace to GRAY, and reset image->chromaticity. |
glennrp | 8d0bca5 | 2012-05-17 02:33:23 +0000 | [diff] [blame] | 2956 | */ |
glennrp | 6742993 | 2013-10-05 14:59:56 +0000 | [diff] [blame] | 2957 | image->intensity = Rec709LuminancePixelIntensityMethod; |
glennrp | 8d0bca5 | 2012-05-17 02:33:23 +0000 | [diff] [blame] | 2958 | SetImageColorspace(image,GRAYColorspace,exception); |
| 2959 | } |
glennrp | ccc36af | 2014-09-08 23:22:03 +0000 | [diff] [blame] | 2960 | else |
| 2961 | { |
| 2962 | RenderingIntent |
| 2963 | save_rendering_intent = image->rendering_intent; |
| 2964 | ChromaticityInfo |
| 2965 | save_chromaticity = image->chromaticity; |
| 2966 | |
| 2967 | SetImageColorspace(image,GRAYColorspace,exception); |
| 2968 | image->rendering_intent = save_rendering_intent; |
| 2969 | image->chromaticity = save_chromaticity; |
| 2970 | } |
| 2971 | |
| 2972 | image->gamma = image_gamma; |
glennrp | 8d0bca5 | 2012-05-17 02:33:23 +0000 | [diff] [blame] | 2973 | } |
glennrp | 6647b97 | 2015-01-12 04:39:14 +0000 | [diff] [blame] | 2974 | |
glennrp | e88af77 | 2012-08-22 13:59:50 +0000 | [diff] [blame] | 2975 | (void)LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 0a5b92c | 2014-03-16 22:08:03 +0000 | [diff] [blame] | 2976 | " image->colorspace=%d",(int) image->colorspace); |
glennrp | a6c5d34 | 2012-05-14 13:21:17 +0000 | [diff] [blame] | 2977 | |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2978 | if (((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) || |
glennrp | 32340ff | 2012-08-25 17:36:19 +0000 | [diff] [blame] | 2979 | ((int) ping_bit_depth < 16 && |
| 2980 | (int) ping_color_type == PNG_COLOR_TYPE_GRAY)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2981 | { |
cristy | befe4d2 | 2010-06-07 01:18:58 +0000 | [diff] [blame] | 2982 | size_t |
| 2983 | one; |
| 2984 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2985 | image->storage_class=PseudoClass; |
cristy | befe4d2 | 2010-06-07 01:18:58 +0000 | [diff] [blame] | 2986 | one=1; |
glennrp | fcf0616 | 2012-11-05 14:57:08 +0000 | [diff] [blame] | 2987 | image->colors=one << ping_file_depth; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2988 | #if (MAGICKCORE_QUANTUM_DEPTH == 8) |
| 2989 | if (image->colors > 256) |
glennrp | 67b9c1a | 2011-04-22 18:47:36 +0000 | [diff] [blame] | 2990 | image->colors=256; |
| 2991 | #else |
| 2992 | if (image->colors > 65536L) |
| 2993 | image->colors=65536L; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2994 | #endif |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 2995 | if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2996 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2997 | png_colorp |
| 2998 | palette; |
| 2999 | |
| 3000 | (void) png_get_PLTE(ping,ping_info,&palette,&number_colors); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3001 | image->colors=(size_t) number_colors; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3002 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3003 | if (logging != MagickFalse) |
| 3004 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 3005 | " Reading PNG PLTE chunk: number_colors: %d.",number_colors); |
| 3006 | } |
| 3007 | } |
| 3008 | |
| 3009 | if (image->storage_class == PseudoClass) |
| 3010 | { |
| 3011 | /* |
| 3012 | Initialize image colormap. |
| 3013 | */ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3014 | if (AcquireImageColormap(image,image->colors,exception) == MagickFalse) |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 3015 | png_error(ping,"Memory allocation failed"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3016 | |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 3017 | if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3018 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3019 | png_colorp |
| 3020 | palette; |
| 3021 | |
| 3022 | (void) png_get_PLTE(ping,ping_info,&palette,&number_colors); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3023 | |
glennrp | 6af6cf1 | 2011-04-22 13:05:16 +0000 | [diff] [blame] | 3024 | for (i=0; i < (ssize_t) number_colors; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3025 | { |
| 3026 | image->colormap[i].red=ScaleCharToQuantum(palette[i].red); |
| 3027 | image->colormap[i].green=ScaleCharToQuantum(palette[i].green); |
| 3028 | image->colormap[i].blue=ScaleCharToQuantum(palette[i].blue); |
| 3029 | } |
glennrp | 6af6cf1 | 2011-04-22 13:05:16 +0000 | [diff] [blame] | 3030 | |
glennrp | 67b9c1a | 2011-04-22 18:47:36 +0000 | [diff] [blame] | 3031 | for ( ; i < (ssize_t) image->colors; i++) |
glennrp | 6af6cf1 | 2011-04-22 13:05:16 +0000 | [diff] [blame] | 3032 | { |
| 3033 | image->colormap[i].red=0; |
| 3034 | image->colormap[i].green=0; |
| 3035 | image->colormap[i].blue=0; |
| 3036 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3037 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3038 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3039 | else |
| 3040 | { |
glennrp | 9b034ff | 2015-03-16 14:36:44 +0000 | [diff] [blame] | 3041 | Quantum |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3042 | scale; |
| 3043 | |
cristy | d7c4d1c | 2015-03-22 17:16:52 +0000 | [diff] [blame] | 3044 | scale = (Quantum) (65535UL)/((1UL << ping_file_depth)-1); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3045 | |
glennrp | 9b034ff | 2015-03-16 14:36:44 +0000 | [diff] [blame] | 3046 | #if (MAGICKCORE_QUANTUM_DEPTH > 16) |
| 3047 | scale = ScaleShortToQuantum(scale); |
| 3048 | #endif |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3049 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3050 | for (i=0; i < (ssize_t) image->colors; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3051 | { |
| 3052 | image->colormap[i].red=(Quantum) (i*scale); |
| 3053 | image->colormap[i].green=(Quantum) (i*scale); |
| 3054 | image->colormap[i].blue=(Quantum) (i*scale); |
| 3055 | } |
| 3056 | } |
| 3057 | } |
glennrp | 147bc91 | 2011-03-30 18:47:21 +0000 | [diff] [blame] | 3058 | |
glennrp | cb395ac | 2011-03-30 19:50:23 +0000 | [diff] [blame] | 3059 | /* Set some properties for reporting by "identify" */ |
| 3060 | { |
glennrp | 147bc91 | 2011-03-30 18:47:21 +0000 | [diff] [blame] | 3061 | char |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 3062 | msg[MagickPathExtent]; |
glennrp | 147bc91 | 2011-03-30 18:47:21 +0000 | [diff] [blame] | 3063 | |
glennrp | fcf0616 | 2012-11-05 14:57:08 +0000 | [diff] [blame] | 3064 | /* encode ping_width, ping_height, ping_file_depth, ping_color_type, |
glennrp | 147bc91 | 2011-03-30 18:47:21 +0000 | [diff] [blame] | 3065 | ping_interlace_method in value */ |
| 3066 | |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 3067 | (void) FormatLocaleString(msg,MagickPathExtent, |
glennrp | 7cdb11c | 2011-03-31 18:17:25 +0000 | [diff] [blame] | 3068 | "%d, %d",(int) ping_width, (int) ping_height); |
glennrp | 3398b5b | 2013-05-03 23:10:31 +0000 | [diff] [blame] | 3069 | (void) SetImageProperty(image,"png:IHDR.width,height",msg,exception); |
glennrp | 147bc91 | 2011-03-30 18:47:21 +0000 | [diff] [blame] | 3070 | |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 3071 | (void) FormatLocaleString(msg,MagickPathExtent,"%d",(int) ping_file_depth); |
glennrp | 3398b5b | 2013-05-03 23:10:31 +0000 | [diff] [blame] | 3072 | (void) SetImageProperty(image,"png:IHDR.bit_depth",msg,exception); |
glennrp | 147bc91 | 2011-03-30 18:47:21 +0000 | [diff] [blame] | 3073 | |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 3074 | (void) FormatLocaleString(msg,MagickPathExtent,"%d (%s)", |
glennrp | 5dff435 | 2012-06-06 22:12:04 +0000 | [diff] [blame] | 3075 | (int) ping_color_type, |
| 3076 | Magick_ColorType_from_PNG_ColorType((int)ping_color_type)); |
glennrp | 3398b5b | 2013-05-03 23:10:31 +0000 | [diff] [blame] | 3077 | (void) SetImageProperty(image,"png:IHDR.color_type",msg,exception); |
glennrp | 147bc91 | 2011-03-30 18:47:21 +0000 | [diff] [blame] | 3078 | |
glennrp | 913f961 | 2012-06-27 17:50:00 +0000 | [diff] [blame] | 3079 | if (ping_interlace_method == 0) |
| 3080 | { |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 3081 | (void) FormatLocaleString(msg,MagickPathExtent,"%d (Not interlaced)", |
glennrp | 913f961 | 2012-06-27 17:50:00 +0000 | [diff] [blame] | 3082 | (int) ping_interlace_method); |
| 3083 | } |
| 3084 | else if (ping_interlace_method == 1) |
| 3085 | { |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 3086 | (void) FormatLocaleString(msg,MagickPathExtent,"%d (Adam7 method)", |
glennrp | 913f961 | 2012-06-27 17:50:00 +0000 | [diff] [blame] | 3087 | (int) ping_interlace_method); |
| 3088 | } |
| 3089 | else |
| 3090 | { |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 3091 | (void) FormatLocaleString(msg,MagickPathExtent,"%d (Unknown method)", |
glennrp | 913f961 | 2012-06-27 17:50:00 +0000 | [diff] [blame] | 3092 | (int) ping_interlace_method); |
| 3093 | } |
| 3094 | (void) SetImageProperty(image,"png:IHDR.interlace_method",msg,exception); |
| 3095 | |
| 3096 | if (number_colors != 0) |
| 3097 | { |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 3098 | (void) FormatLocaleString(msg,MagickPathExtent,"%d", |
glennrp | 913f961 | 2012-06-27 17:50:00 +0000 | [diff] [blame] | 3099 | (int) number_colors); |
glennrp | 3398b5b | 2013-05-03 23:10:31 +0000 | [diff] [blame] | 3100 | (void) SetImageProperty(image,"png:PLTE.number_colors",msg, |
glennrp | 913f961 | 2012-06-27 17:50:00 +0000 | [diff] [blame] | 3101 | exception); |
| 3102 | } |
glennrp | cb395ac | 2011-03-30 19:50:23 +0000 | [diff] [blame] | 3103 | } |
glennrp | 39d99e1 | 2014-10-26 20:57:13 +0000 | [diff] [blame] | 3104 | #if defined(PNG_tIME_SUPPORTED) |
| 3105 | read_tIME_chunk(image,ping,ping_info,exception); |
| 3106 | #endif |
| 3107 | |
glennrp | 147bc91 | 2011-03-30 18:47:21 +0000 | [diff] [blame] | 3108 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3109 | /* |
| 3110 | Read image scanlines. |
| 3111 | */ |
| 3112 | if (image->delay != 0) |
| 3113 | mng_info->scenes_found++; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3114 | |
glennrp | 0ca69b1 | 2010-07-26 01:57:52 +0000 | [diff] [blame] | 3115 | if ((mng_info->mng_type == 0 && (image->ping != MagickFalse)) || ( |
glennrp | 347e40f | 2010-06-06 11:27:30 +0000 | [diff] [blame] | 3116 | (image_info->number_scenes != 0) && (mng_info->scenes_found > (ssize_t) |
| 3117 | (image_info->first_scene+image_info->number_scenes)))) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3118 | { |
glennrp | 1b888c4 | 2012-03-02 15:18:14 +0000 | [diff] [blame] | 3119 | /* This happens later in non-ping decodes */ |
| 3120 | if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) |
| 3121 | image->storage_class=DirectClass; |
| 3122 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3123 | if (logging != MagickFalse) |
| 3124 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 3125 | " Skipping PNG image data for scene %.20g",(double) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3126 | mng_info->scenes_found-1); |
| 3127 | png_destroy_read_struct(&ping,&ping_info,&end_info); |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 3128 | |
glennrp | 868fff3 | 2014-03-16 22:09:06 +0000 | [diff] [blame] | 3129 | #ifdef IMPNG_SETJMP_NOT_THREAD_SAFE |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 3130 | UnlockSemaphoreInfo(ping_semaphore); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3131 | #endif |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 3132 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3133 | if (logging != MagickFalse) |
| 3134 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 3135 | " exit ReadOnePNGImage()."); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3136 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3137 | return(image); |
| 3138 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3139 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3140 | if (logging != MagickFalse) |
| 3141 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 3142 | " Reading PNG IDAT chunk(s)"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3143 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3144 | if (num_passes > 1) |
cristy | 0997332 | 2013-06-30 21:06:30 +0000 | [diff] [blame] | 3145 | pixel_info=AcquireVirtualMemory(image->rows,ping_rowbytes* |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 3146 | sizeof(*ping_pixels)); |
cristy | 0997332 | 2013-06-30 21:06:30 +0000 | [diff] [blame] | 3147 | else |
| 3148 | pixel_info=AcquireVirtualMemory(ping_rowbytes,sizeof(*ping_pixels)); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3149 | |
cristy | 0997332 | 2013-06-30 21:06:30 +0000 | [diff] [blame] | 3150 | if (pixel_info == (MemoryInfo *) NULL) |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 3151 | png_error(ping,"Memory allocation failed"); |
cristy | 0997332 | 2013-06-30 21:06:30 +0000 | [diff] [blame] | 3152 | ping_pixels=(unsigned char *) GetVirtualMemoryBlob(pixel_info); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3153 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3154 | if (logging != MagickFalse) |
| 3155 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 3156 | " Converting PNG pixels to pixel packets"); |
| 3157 | /* |
| 3158 | Convert PNG pixels to pixel packets. |
| 3159 | */ |
cristy | 5f766ef | 2014-12-14 21:12:47 +0000 | [diff] [blame] | 3160 | quantum_info=AcquireQuantumInfo(image_info,image); |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3161 | |
| 3162 | if (quantum_info == (QuantumInfo *) NULL) |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 3163 | png_error(ping,"Failed to allocate quantum_info"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3164 | |
glennrp | 4b840d7 | 2012-11-22 16:01:16 +0000 | [diff] [blame] | 3165 | (void) SetQuantumEndian(image,quantum_info,MSBEndian); |
| 3166 | |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3167 | { |
| 3168 | |
| 3169 | MagickBooleanType |
| 3170 | found_transparent_pixel; |
| 3171 | |
| 3172 | found_transparent_pixel=MagickFalse; |
| 3173 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3174 | if (image->storage_class == DirectClass) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3175 | { |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3176 | for (pass=0; pass < num_passes; pass++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3177 | { |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3178 | /* |
| 3179 | Convert image to DirectClass pixel packets. |
| 3180 | */ |
glennrp | ccc36af | 2014-09-08 23:22:03 +0000 | [diff] [blame] | 3181 | image->alpha_trait= |
| 3182 | (((int) ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) || |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3183 | ((int) ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) || |
| 3184 | (png_get_valid(ping,ping_info,PNG_INFO_tRNS))) ? |
cristy | b0a657e | 2012-08-29 00:45:37 +0000 | [diff] [blame] | 3185 | BlendPixelTrait : UndefinedPixelTrait; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3186 | |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3187 | for (y=0; y < (ssize_t) image->rows; y++) |
| 3188 | { |
| 3189 | if (num_passes > 1) |
| 3190 | row_offset=ping_rowbytes*y; |
| 3191 | |
| 3192 | else |
| 3193 | row_offset=0; |
| 3194 | |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 3195 | png_read_row(ping,ping_pixels+row_offset,NULL); |
glennrp | c5c31be | 2012-11-07 18:42:18 +0000 | [diff] [blame] | 3196 | |
| 3197 | if (pass < num_passes-1) |
| 3198 | continue; |
| 3199 | |
cristy | 862a33c | 2012-05-17 22:49:37 +0000 | [diff] [blame] | 3200 | q=GetAuthenticPixels(image,0,y,image->columns,1,exception); |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3201 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3202 | if (q == (Quantum *) NULL) |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3203 | break; |
| 3204 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3205 | if ((int) ping_color_type == PNG_COLOR_TYPE_GRAY) |
| 3206 | (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, |
| 3207 | GrayQuantum,ping_pixels+row_offset,exception); |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3208 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3209 | else if ((int) ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) |
| 3210 | (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, |
| 3211 | GrayAlphaQuantum,ping_pixels+row_offset,exception); |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3212 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3213 | else if ((int) ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) |
| 3214 | (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, |
| 3215 | RGBAQuantum,ping_pixels+row_offset,exception); |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3216 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3217 | else if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) |
| 3218 | (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, |
| 3219 | IndexQuantum,ping_pixels+row_offset,exception); |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3220 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3221 | else /* ping_color_type == PNG_COLOR_TYPE_RGB */ |
| 3222 | (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, |
| 3223 | RGBQuantum,ping_pixels+row_offset,exception); |
glennrp | 3faa9a3 | 2011-04-23 14:00:25 +0000 | [diff] [blame] | 3224 | |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3225 | if (found_transparent_pixel == MagickFalse) |
| 3226 | { |
| 3227 | /* Is there a transparent pixel in the row? */ |
glennrp | a6a0663 | 2011-01-19 15:15:34 +0000 | [diff] [blame] | 3228 | if (y== 0 && logging != MagickFalse) |
| 3229 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 3230 | " Looking for cheap transparent pixel"); |
| 3231 | |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3232 | for (x=(ssize_t) image->columns-1; x >= 0; x--) |
| 3233 | { |
glennrp | 5aa37f6 | 2011-01-02 03:07:57 +0000 | [diff] [blame] | 3234 | if ((ping_color_type == PNG_COLOR_TYPE_RGBA || |
| 3235 | ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) && |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3236 | (GetPixelAlpha(image,q) != OpaqueAlpha)) |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3237 | { |
glennrp | a6a0663 | 2011-01-19 15:15:34 +0000 | [diff] [blame] | 3238 | if (logging != MagickFalse) |
| 3239 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 3240 | " ...got one."); |
| 3241 | |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3242 | found_transparent_pixel = MagickTrue; |
| 3243 | break; |
| 3244 | } |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 3245 | if ((ping_color_type == PNG_COLOR_TYPE_RGB || |
| 3246 | ping_color_type == PNG_COLOR_TYPE_GRAY) && |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3247 | (ScaleQuantumToShort(GetPixelRed(image,q)) == |
| 3248 | transparent_color.red && |
| 3249 | ScaleQuantumToShort(GetPixelGreen(image,q)) == |
| 3250 | transparent_color.green && |
| 3251 | ScaleQuantumToShort(GetPixelBlue(image,q)) == |
| 3252 | transparent_color.blue)) |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 3253 | { |
glennrp | a6a0663 | 2011-01-19 15:15:34 +0000 | [diff] [blame] | 3254 | if (logging != MagickFalse) |
| 3255 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 3256 | " ...got one."); |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 3257 | found_transparent_pixel = MagickTrue; |
| 3258 | break; |
| 3259 | } |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3260 | q+=GetPixelChannels(image); |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3261 | } |
| 3262 | } |
| 3263 | |
glennrp | af93204 | 2014-11-29 20:44:25 +0000 | [diff] [blame] | 3264 | if (num_passes == 1) |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3265 | { |
glennrp | af93204 | 2014-11-29 20:44:25 +0000 | [diff] [blame] | 3266 | status=SetImageProgress(image,LoadImageTag, |
| 3267 | (MagickOffsetType) y, image->rows); |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3268 | |
| 3269 | if (status == MagickFalse) |
| 3270 | break; |
| 3271 | } |
| 3272 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 3273 | break; |
| 3274 | } |
| 3275 | |
glennrp | af93204 | 2014-11-29 20:44:25 +0000 | [diff] [blame] | 3276 | if (num_passes != 1) |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3277 | { |
| 3278 | status=SetImageProgress(image,LoadImageTag,pass,num_passes); |
cristy | 7a287bf | 2010-02-14 02:18:09 +0000 | [diff] [blame] | 3279 | if (status == MagickFalse) |
| 3280 | break; |
| 3281 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3282 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3283 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3284 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3285 | else /* image->storage_class != DirectClass */ |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3286 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3287 | for (pass=0; pass < num_passes; pass++) |
| 3288 | { |
| 3289 | Quantum |
| 3290 | *quantum_scanline; |
| 3291 | |
| 3292 | register Quantum |
| 3293 | *r; |
| 3294 | |
| 3295 | /* |
| 3296 | Convert grayscale image to PseudoClass pixel packets. |
| 3297 | */ |
glennrp | c17d96f | 2011-06-27 01:20:11 +0000 | [diff] [blame] | 3298 | if (logging != MagickFalse) |
| 3299 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 3300 | " Converting grayscale pixels to pixel packets"); |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3301 | |
cristy | 8a46d82 | 2012-08-28 23:32:39 +0000 | [diff] [blame] | 3302 | image->alpha_trait=ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA ? |
cristy | b0a657e | 2012-08-29 00:45:37 +0000 | [diff] [blame] | 3303 | BlendPixelTrait : UndefinedPixelTrait; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3304 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3305 | quantum_scanline=(Quantum *) AcquireQuantumMemory(image->columns, |
cristy | b0a657e | 2012-08-29 00:45:37 +0000 | [diff] [blame] | 3306 | (image->alpha_trait == BlendPixelTrait? 2 : 1)* |
| 3307 | sizeof(*quantum_scanline)); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3308 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3309 | if (quantum_scanline == (Quantum *) NULL) |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 3310 | png_error(ping,"Memory allocation failed"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3311 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3312 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3313 | { |
glennrp | 4f99639 | 2013-01-26 22:56:50 +0000 | [diff] [blame] | 3314 | Quantum |
| 3315 | alpha; |
| 3316 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3317 | if (num_passes > 1) |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 3318 | row_offset=ping_rowbytes*y; |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3319 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3320 | else |
| 3321 | row_offset=0; |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3322 | |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 3323 | png_read_row(ping,ping_pixels+row_offset,NULL); |
glennrp | c5c31be | 2012-11-07 18:42:18 +0000 | [diff] [blame] | 3324 | |
| 3325 | if (pass < num_passes-1) |
| 3326 | continue; |
| 3327 | |
glennrp | 4f99639 | 2013-01-26 22:56:50 +0000 | [diff] [blame] | 3328 | q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3329 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3330 | if (q == (Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3331 | break; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3332 | |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 3333 | p=ping_pixels+row_offset; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3334 | r=quantum_scanline; |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3335 | |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 3336 | switch (ping_bit_depth) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3337 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3338 | case 8: |
| 3339 | { |
glennrp | 4f99639 | 2013-01-26 22:56:50 +0000 | [diff] [blame] | 3340 | |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 3341 | if (ping_color_type == 4) |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3342 | for (x=(ssize_t) image->columns-1; x >= 0; x--) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3343 | { |
glennrp | a18d5bc | 2011-04-23 14:51:34 +0000 | [diff] [blame] | 3344 | *r++=*p++; |
glennrp | 4f99639 | 2013-01-26 22:56:50 +0000 | [diff] [blame] | 3345 | |
| 3346 | alpha=ScaleCharToQuantum((unsigned char)*p++); |
| 3347 | |
| 3348 | SetPixelAlpha(image,alpha,q); |
| 3349 | |
| 3350 | if (alpha != OpaqueAlpha) |
glennrp | 0b206f5 | 2011-01-07 04:55:32 +0000 | [diff] [blame] | 3351 | found_transparent_pixel = MagickTrue; |
glennrp | 4f99639 | 2013-01-26 22:56:50 +0000 | [diff] [blame] | 3352 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3353 | q+=GetPixelChannels(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3354 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3355 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3356 | else |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3357 | for (x=(ssize_t) image->columns-1; x >= 0; x--) |
glennrp | a18d5bc | 2011-04-23 14:51:34 +0000 | [diff] [blame] | 3358 | *r++=*p++; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3359 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3360 | break; |
| 3361 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 3362 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3363 | case 16: |
| 3364 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3365 | for (x=(ssize_t) image->columns-1; x >= 0; x--) |
glennrp | a18d5bc | 2011-04-23 14:51:34 +0000 | [diff] [blame] | 3366 | { |
glennrp | 9b034ff | 2015-03-16 14:36:44 +0000 | [diff] [blame] | 3367 | #if (MAGICKCORE_QUANTUM_DEPTH >= 16) |
cristy | 87281ec | 2013-05-08 11:50:14 +0000 | [diff] [blame] | 3368 | unsigned short |
glennrp | 58f77c7 | 2011-04-23 14:09:09 +0000 | [diff] [blame] | 3369 | quantum; |
| 3370 | |
| 3371 | if (image->colors > 256) |
glennrp | c17d96f | 2011-06-27 01:20:11 +0000 | [diff] [blame] | 3372 | quantum=((*p++) << 8); |
glennrp | 58f77c7 | 2011-04-23 14:09:09 +0000 | [diff] [blame] | 3373 | |
| 3374 | else |
glennrp | c17d96f | 2011-06-27 01:20:11 +0000 | [diff] [blame] | 3375 | quantum=0; |
glennrp | 58f77c7 | 2011-04-23 14:09:09 +0000 | [diff] [blame] | 3376 | |
glennrp | 58f77c7 | 2011-04-23 14:09:09 +0000 | [diff] [blame] | 3377 | quantum|=(*p++); |
glennrp | c17d96f | 2011-06-27 01:20:11 +0000 | [diff] [blame] | 3378 | *r=ScaleShortToQuantum(quantum); |
glennrp | 58f77c7 | 2011-04-23 14:09:09 +0000 | [diff] [blame] | 3379 | r++; |
glennrp | 9d0ea4d | 2011-04-22 18:35:57 +0000 | [diff] [blame] | 3380 | |
| 3381 | if (ping_color_type == 4) |
| 3382 | { |
glennrp | c17d96f | 2011-06-27 01:20:11 +0000 | [diff] [blame] | 3383 | if (image->colors > 256) |
| 3384 | quantum=((*p++) << 8); |
| 3385 | else |
| 3386 | quantum=0; |
| 3387 | |
glennrp | 58f77c7 | 2011-04-23 14:09:09 +0000 | [diff] [blame] | 3388 | quantum|=(*p++); |
glennrp | 4f99639 | 2013-01-26 22:56:50 +0000 | [diff] [blame] | 3389 | |
| 3390 | alpha=ScaleShortToQuantum(quantum); |
| 3391 | SetPixelAlpha(image,alpha,q); |
| 3392 | |
| 3393 | if (alpha != OpaqueAlpha) |
glennrp | 58f77c7 | 2011-04-23 14:09:09 +0000 | [diff] [blame] | 3394 | found_transparent_pixel = MagickTrue; |
glennrp | 4f99639 | 2013-01-26 22:56:50 +0000 | [diff] [blame] | 3395 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3396 | q+=GetPixelChannels(image); |
glennrp | 58f77c7 | 2011-04-23 14:09:09 +0000 | [diff] [blame] | 3397 | } |
glennrp | 58f77c7 | 2011-04-23 14:09:09 +0000 | [diff] [blame] | 3398 | |
| 3399 | #else /* MAGICKCORE_QUANTUM_DEPTH == 8 */ |
| 3400 | *r++=(*p++); |
| 3401 | p++; /* strip low byte */ |
| 3402 | |
| 3403 | if (ping_color_type == 4) |
| 3404 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3405 | SetPixelAlpha(image,*p++,q); |
glennrp | 4f99639 | 2013-01-26 22:56:50 +0000 | [diff] [blame] | 3406 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3407 | if (GetPixelAlpha(image,q) != OpaqueAlpha) |
glennrp | 9d0ea4d | 2011-04-22 18:35:57 +0000 | [diff] [blame] | 3408 | found_transparent_pixel = MagickTrue; |
glennrp | 4f99639 | 2013-01-26 22:56:50 +0000 | [diff] [blame] | 3409 | |
glennrp | 9d0ea4d | 2011-04-22 18:35:57 +0000 | [diff] [blame] | 3410 | p++; |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3411 | q+=GetPixelChannels(image); |
glennrp | 9d0ea4d | 2011-04-22 18:35:57 +0000 | [diff] [blame] | 3412 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3413 | #endif |
glennrp | a18d5bc | 2011-04-23 14:51:34 +0000 | [diff] [blame] | 3414 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 3415 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3416 | break; |
| 3417 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 3418 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3419 | default: |
| 3420 | break; |
| 3421 | } |
glennrp | 3faa9a3 | 2011-04-23 14:00:25 +0000 | [diff] [blame] | 3422 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3423 | /* |
| 3424 | Transfer image scanline. |
| 3425 | */ |
| 3426 | r=quantum_scanline; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3427 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3428 | q=GetAuthenticPixels(image,0,y,image->columns,1,exception); |
| 3429 | |
| 3430 | if (q == (Quantum *) NULL) |
| 3431 | break; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3432 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3433 | { |
| 3434 | SetPixelIndex(image,*r++,q); |
| 3435 | q+=GetPixelChannels(image); |
| 3436 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3437 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3438 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 3439 | break; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3440 | |
glennrp | af93204 | 2014-11-29 20:44:25 +0000 | [diff] [blame] | 3441 | if (num_passes == 1) |
cristy | 7a287bf | 2010-02-14 02:18:09 +0000 | [diff] [blame] | 3442 | { |
cristy | cee9711 | 2010-05-28 00:44:52 +0000 | [diff] [blame] | 3443 | status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y, |
cristy | 9fff7b4 | 2011-04-29 01:09:31 +0000 | [diff] [blame] | 3444 | image->rows); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 3445 | |
cristy | 7a287bf | 2010-02-14 02:18:09 +0000 | [diff] [blame] | 3446 | if (status == MagickFalse) |
| 3447 | break; |
| 3448 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3449 | } |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3450 | |
glennrp | af93204 | 2014-11-29 20:44:25 +0000 | [diff] [blame] | 3451 | if (num_passes != 1) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3452 | { |
| 3453 | status=SetImageProgress(image,LoadImageTag,pass,num_passes); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 3454 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3455 | if (status == MagickFalse) |
| 3456 | break; |
| 3457 | } |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3458 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3459 | quantum_scanline=(Quantum *) RelinquishMagickMemory(quantum_scanline); |
| 3460 | } |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3461 | |
cristy | b0a657e | 2012-08-29 00:45:37 +0000 | [diff] [blame] | 3462 | image->alpha_trait=found_transparent_pixel ? BlendPixelTrait : |
| 3463 | UndefinedPixelTrait; |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3464 | |
| 3465 | if (logging != MagickFalse) |
| 3466 | { |
| 3467 | if (found_transparent_pixel != MagickFalse) |
| 3468 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 3469 | " Found transparent pixel"); |
| 3470 | else |
glennrp | 5aa37f6 | 2011-01-02 03:07:57 +0000 | [diff] [blame] | 3471 | { |
| 3472 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 3473 | " No transparent pixel was found"); |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 3474 | |
glennrp | 5aa37f6 | 2011-01-02 03:07:57 +0000 | [diff] [blame] | 3475 | ping_color_type&=0x03; |
| 3476 | } |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 3477 | } |
| 3478 | } |
| 3479 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3480 | if (quantum_info != (QuantumInfo *) NULL) |
| 3481 | quantum_info=DestroyQuantumInfo(quantum_info); |
| 3482 | |
cristy | 5c6f789 | 2010-05-05 22:53:29 +0000 | [diff] [blame] | 3483 | if (image->storage_class == PseudoClass) |
| 3484 | { |
cristy | b0a657e | 2012-08-29 00:45:37 +0000 | [diff] [blame] | 3485 | PixelTrait |
| 3486 | alpha_trait; |
cristy | 5c6f789 | 2010-05-05 22:53:29 +0000 | [diff] [blame] | 3487 | |
cristy | b0a657e | 2012-08-29 00:45:37 +0000 | [diff] [blame] | 3488 | alpha_trait=image->alpha_trait; |
cristy | 8a46d82 | 2012-08-28 23:32:39 +0000 | [diff] [blame] | 3489 | image->alpha_trait=UndefinedPixelTrait; |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3490 | (void) SyncImage(image,exception); |
cristy | b0a657e | 2012-08-29 00:45:37 +0000 | [diff] [blame] | 3491 | image->alpha_trait=alpha_trait; |
cristy | 5c6f789 | 2010-05-05 22:53:29 +0000 | [diff] [blame] | 3492 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 3493 | |
glennrp | 4eb3931 | 2011-03-30 21:34:55 +0000 | [diff] [blame] | 3494 | png_read_end(ping,end_info); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3495 | |
glennrp | ccc36af | 2014-09-08 23:22:03 +0000 | [diff] [blame] | 3496 | if (logging != MagickFalse) |
| 3497 | { |
| 3498 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 3499 | " image->storage_class=%d\n",(int) image->storage_class); |
| 3500 | } |
| 3501 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3502 | if (image_info->number_scenes != 0 && mng_info->scenes_found-1 < |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3503 | (ssize_t) image_info->first_scene && image->delay != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3504 | { |
| 3505 | png_destroy_read_struct(&ping,&ping_info,&end_info); |
cristy | 0997332 | 2013-06-30 21:06:30 +0000 | [diff] [blame] | 3506 | pixel_info=RelinquishVirtualMemory(pixel_info); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3507 | image->colors=2; |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3508 | (void) SetImageBackgroundColor(image,exception); |
glennrp | 868fff3 | 2014-03-16 22:09:06 +0000 | [diff] [blame] | 3509 | #ifdef IMPNG_SETJMP_NOT_THREAD_SAFE |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 3510 | UnlockSemaphoreInfo(ping_semaphore); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3511 | #endif |
| 3512 | if (logging != MagickFalse) |
| 3513 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 3514 | " exit ReadOnePNGImage() early."); |
| 3515 | return(image); |
| 3516 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 3517 | |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 3518 | if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3519 | { |
| 3520 | ClassType |
| 3521 | storage_class; |
| 3522 | |
| 3523 | /* |
| 3524 | Image has a transparent background. |
| 3525 | */ |
| 3526 | storage_class=image->storage_class; |
cristy | 8a46d82 | 2012-08-28 23:32:39 +0000 | [diff] [blame] | 3527 | image->alpha_trait=BlendPixelTrait; |
glennrp | c11cf6a | 2010-03-20 16:46:19 +0000 | [diff] [blame] | 3528 | |
glennrp | 3c21811 | 2010-11-27 15:31:26 +0000 | [diff] [blame] | 3529 | /* Balfour fix from imagemagick discourse server, 5 Feb 2010 */ |
glennrp | c11cf6a | 2010-03-20 16:46:19 +0000 | [diff] [blame] | 3530 | |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3531 | if (storage_class == PseudoClass) |
| 3532 | { |
| 3533 | if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) |
glennrp | c11cf6a | 2010-03-20 16:46:19 +0000 | [diff] [blame] | 3534 | { |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3535 | for (x=0; x < ping_num_trans; x++) |
| 3536 | { |
cristy | 8a46d82 | 2012-08-28 23:32:39 +0000 | [diff] [blame] | 3537 | image->colormap[x].alpha_trait=BlendPixelTrait; |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3538 | image->colormap[x].alpha = |
| 3539 | ScaleCharToQuantum((unsigned char)ping_trans_alpha[x]); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3540 | } |
glennrp | c11cf6a | 2010-03-20 16:46:19 +0000 | [diff] [blame] | 3541 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 3542 | |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3543 | else if (ping_color_type == PNG_COLOR_TYPE_GRAY) |
| 3544 | { |
| 3545 | for (x=0; x < (int) image->colors; x++) |
| 3546 | { |
| 3547 | if (ScaleQuantumToShort(image->colormap[x].red) == |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3548 | transparent_color.alpha) |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3549 | { |
cristy | 8a46d82 | 2012-08-28 23:32:39 +0000 | [diff] [blame] | 3550 | image->colormap[x].alpha_trait=BlendPixelTrait; |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3551 | image->colormap[x].alpha = (Quantum) TransparentAlpha; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3552 | } |
| 3553 | } |
| 3554 | } |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3555 | (void) SyncImage(image,exception); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3556 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 3557 | |
glennrp | a6a0663 | 2011-01-19 15:15:34 +0000 | [diff] [blame] | 3558 | #if 1 /* Should have already been done above, but glennrp problem P10 |
| 3559 | * needs this. |
| 3560 | */ |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3561 | else |
| 3562 | { |
| 3563 | for (y=0; y < (ssize_t) image->rows; y++) |
glennrp | c11cf6a | 2010-03-20 16:46:19 +0000 | [diff] [blame] | 3564 | { |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3565 | image->storage_class=storage_class; |
| 3566 | q=GetAuthenticPixels(image,0,y,image->columns,1,exception); |
| 3567 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3568 | if (q == (Quantum *) NULL) |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3569 | break; |
| 3570 | |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3571 | |
glennrp | a6a0663 | 2011-01-19 15:15:34 +0000 | [diff] [blame] | 3572 | /* Caution: on a Q8 build, this does not distinguish between |
| 3573 | * 16-bit colors that differ only in the low byte |
| 3574 | */ |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3575 | for (x=(ssize_t) image->columns-1; x >= 0; x--) |
| 3576 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3577 | if (ScaleQuantumToShort(GetPixelRed(image,q)) == |
| 3578 | transparent_color.red && |
| 3579 | ScaleQuantumToShort(GetPixelGreen(image,q)) == |
| 3580 | transparent_color.green && |
| 3581 | ScaleQuantumToShort(GetPixelBlue(image,q)) == |
| 3582 | transparent_color.blue) |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 3583 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3584 | SetPixelAlpha(image,TransparentAlpha,q); |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 3585 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3586 | |
glennrp | 67b9c1a | 2011-04-22 18:47:36 +0000 | [diff] [blame] | 3587 | #if 0 /* I have not found a case where this is needed. */ |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3588 | else |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 3589 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3590 | SetPixelAlpha(image,q)=(Quantum) OpaqueAlpha; |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 3591 | } |
glennrp | a6a0663 | 2011-01-19 15:15:34 +0000 | [diff] [blame] | 3592 | #endif |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3593 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3594 | q+=GetPixelChannels(image); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3595 | } |
| 3596 | |
| 3597 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 3598 | break; |
glennrp | c11cf6a | 2010-03-20 16:46:19 +0000 | [diff] [blame] | 3599 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3600 | } |
glennrp | a6a0663 | 2011-01-19 15:15:34 +0000 | [diff] [blame] | 3601 | #endif |
glennrp | c11cf6a | 2010-03-20 16:46:19 +0000 | [diff] [blame] | 3602 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3603 | image->storage_class=DirectClass; |
| 3604 | } |
glennrp | 3c21811 | 2010-11-27 15:31:26 +0000 | [diff] [blame] | 3605 | |
cristy | eb3b22a | 2011-03-31 20:16:11 +0000 | [diff] [blame] | 3606 | for (j = 0; j < 2; j++) |
glennrp | 4eb3931 | 2011-03-30 21:34:55 +0000 | [diff] [blame] | 3607 | { |
| 3608 | if (j == 0) |
glennrp | a0ed009 | 2011-04-18 16:36:29 +0000 | [diff] [blame] | 3609 | status = png_get_text(ping,ping_info,&text,&num_text) != 0 ? |
| 3610 | MagickTrue : MagickFalse; |
glennrp | 4eb3931 | 2011-03-30 21:34:55 +0000 | [diff] [blame] | 3611 | else |
glennrp | a0ed009 | 2011-04-18 16:36:29 +0000 | [diff] [blame] | 3612 | status = png_get_text(ping,end_info,&text,&num_text) != 0 ? |
| 3613 | MagickTrue : MagickFalse; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3614 | |
glennrp | 4eb3931 | 2011-03-30 21:34:55 +0000 | [diff] [blame] | 3615 | if (status != MagickFalse) |
| 3616 | for (i=0; i < (ssize_t) num_text; i++) |
| 3617 | { |
| 3618 | /* Check for a profile */ |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3619 | |
glennrp | 4eb3931 | 2011-03-30 21:34:55 +0000 | [diff] [blame] | 3620 | if (logging != MagickFalse) |
| 3621 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 3622 | " Reading PNG text chunk"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3623 | |
glennrp | 5285ae1 | 2014-12-31 17:38:12 +0000 | [diff] [blame] | 3624 | if (strlen(text[i].key) > 16 && |
glennrp | 6dfc266 | 2014-12-31 17:45:09 +0000 | [diff] [blame] | 3625 | memcmp(text[i].key, "Raw profile type ",17) == 0) |
glennrp | 97f90e2 | 2011-02-22 05:47:58 +0000 | [diff] [blame] | 3626 | { |
glennrp | 99f9681 | 2014-06-30 02:57:09 +0000 | [diff] [blame] | 3627 | const char |
| 3628 | *value; |
| 3629 | |
| 3630 | value=GetImageOption(image_info,"profile:skip"); |
| 3631 | |
| 3632 | if (IsOptionMember(text[i].key+17,value) == MagickFalse) |
| 3633 | { |
| 3634 | (void) Magick_png_read_raw_profile(ping,image,image_info,text, |
| 3635 | (int) i,exception); |
| 3636 | num_raw_profiles++; |
| 3637 | if (logging != MagickFalse) |
| 3638 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 3639 | " Read raw profile %s",text[i].key+17); |
| 3640 | } |
| 3641 | else |
| 3642 | { |
| 3643 | if (logging != MagickFalse) |
| 3644 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 3645 | " Skipping raw profile %s",text[i].key+17); |
| 3646 | } |
glennrp | 97f90e2 | 2011-02-22 05:47:58 +0000 | [diff] [blame] | 3647 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3648 | |
glennrp | 4eb3931 | 2011-03-30 21:34:55 +0000 | [diff] [blame] | 3649 | else |
| 3650 | { |
| 3651 | char |
| 3652 | *value; |
| 3653 | |
| 3654 | length=text[i].text_length; |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 3655 | value=(char *) AcquireQuantumMemory(length+MagickPathExtent, |
glennrp | 4eb3931 | 2011-03-30 21:34:55 +0000 | [diff] [blame] | 3656 | sizeof(*value)); |
| 3657 | if (value == (char *) NULL) |
| 3658 | { |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 3659 | png_error(ping,"Memory allocation failed"); |
glennrp | 4eb3931 | 2011-03-30 21:34:55 +0000 | [diff] [blame] | 3660 | break; |
| 3661 | } |
| 3662 | *value='\0'; |
| 3663 | (void) ConcatenateMagickString(value,text[i].text,length+2); |
| 3664 | |
| 3665 | /* Don't save "density" or "units" property if we have a pHYs |
| 3666 | * chunk |
| 3667 | */ |
| 3668 | if (!png_get_valid(ping,ping_info,PNG_INFO_pHYs) || |
| 3669 | (LocaleCompare(text[i].key,"density") != 0 && |
| 3670 | LocaleCompare(text[i].key,"units") != 0)) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3671 | (void) SetImageProperty(image,text[i].key,value,exception); |
glennrp | 4eb3931 | 2011-03-30 21:34:55 +0000 | [diff] [blame] | 3672 | |
| 3673 | if (logging != MagickFalse) |
| 3674 | { |
| 3675 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 2dd1906 | 2014-07-28 00:22:24 +0000 | [diff] [blame] | 3676 | " length: %lu\n" |
| 3677 | " Keyword: %s", |
| 3678 | (unsigned long) length, |
| 3679 | text[i].key); |
glennrp | 4eb3931 | 2011-03-30 21:34:55 +0000 | [diff] [blame] | 3680 | } |
| 3681 | |
| 3682 | value=DestroyString(value); |
| 3683 | } |
| 3684 | } |
dirk | fd6fd07 | 2014-10-24 21:10:08 +0000 | [diff] [blame] | 3685 | num_text_total += num_text; |
| 3686 | } |
glennrp | 3c21811 | 2010-11-27 15:31:26 +0000 | [diff] [blame] | 3687 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3688 | #ifdef MNG_OBJECT_BUFFERS |
| 3689 | /* |
| 3690 | Store the object if necessary. |
| 3691 | */ |
| 3692 | if (object_id && !mng_info->frozen[object_id]) |
| 3693 | { |
| 3694 | if (mng_info->ob[object_id] == (MngBuffer *) NULL) |
| 3695 | { |
| 3696 | /* |
| 3697 | create a new object buffer. |
| 3698 | */ |
| 3699 | mng_info->ob[object_id]=(MngBuffer *) |
cristy | 73bd4a5 | 2010-10-05 11:24:23 +0000 | [diff] [blame] | 3700 | AcquireMagickMemory(sizeof(MngBuffer)); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3701 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3702 | if (mng_info->ob[object_id] != (MngBuffer *) NULL) |
| 3703 | { |
| 3704 | mng_info->ob[object_id]->image=(Image *) NULL; |
| 3705 | mng_info->ob[object_id]->reference_count=1; |
| 3706 | } |
| 3707 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 3708 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3709 | if ((mng_info->ob[object_id] == (MngBuffer *) NULL) || |
| 3710 | mng_info->ob[object_id]->frozen) |
| 3711 | { |
| 3712 | if (mng_info->ob[object_id] == (MngBuffer *) NULL) |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 3713 | png_error(ping,"Memory allocation failed"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3714 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3715 | if (mng_info->ob[object_id]->frozen) |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 3716 | png_error(ping,"Cannot overwrite frozen MNG object buffer"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3717 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3718 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3719 | else |
| 3720 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3721 | |
| 3722 | if (mng_info->ob[object_id]->image != (Image *) NULL) |
| 3723 | mng_info->ob[object_id]->image=DestroyImage |
| 3724 | (mng_info->ob[object_id]->image); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3725 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3726 | mng_info->ob[object_id]->image=CloneImage(image,0,0,MagickTrue, |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3727 | exception); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3728 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3729 | if (mng_info->ob[object_id]->image != (Image *) NULL) |
| 3730 | mng_info->ob[object_id]->image->file=(FILE *) NULL; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3731 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3732 | else |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 3733 | png_error(ping, "Cloning image for object buffer failed"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3734 | |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 3735 | if (ping_width > 250000L || ping_height > 250000L) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3736 | png_error(ping,"PNG Image dimensions are too large."); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3737 | |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 3738 | mng_info->ob[object_id]->width=ping_width; |
| 3739 | mng_info->ob[object_id]->height=ping_height; |
| 3740 | mng_info->ob[object_id]->color_type=ping_color_type; |
| 3741 | mng_info->ob[object_id]->sample_depth=ping_bit_depth; |
| 3742 | mng_info->ob[object_id]->interlace_method=ping_interlace_method; |
| 3743 | mng_info->ob[object_id]->compression_method= |
| 3744 | ping_compression_method; |
| 3745 | mng_info->ob[object_id]->filter_method=ping_filter_method; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3746 | |
glennrp | faa852b | 2010-03-30 12:17:00 +0000 | [diff] [blame] | 3747 | if (png_get_valid(ping,ping_info,PNG_INFO_PLTE)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3748 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3749 | png_colorp |
| 3750 | plte; |
| 3751 | |
| 3752 | /* |
| 3753 | Copy the PLTE to the object buffer. |
| 3754 | */ |
| 3755 | png_get_PLTE(ping,ping_info,&plte,&number_colors); |
| 3756 | mng_info->ob[object_id]->plte_length=number_colors; |
glennrp | 3c21811 | 2010-11-27 15:31:26 +0000 | [diff] [blame] | 3757 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3758 | for (i=0; i < number_colors; i++) |
| 3759 | { |
| 3760 | mng_info->ob[object_id]->plte[i]=plte[i]; |
| 3761 | } |
| 3762 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 3763 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3764 | else |
| 3765 | mng_info->ob[object_id]->plte_length=0; |
| 3766 | } |
| 3767 | } |
| 3768 | #endif |
glennrp | 0a55b4c | 2011-03-23 12:38:38 +0000 | [diff] [blame] | 3769 | |
cristy | 8a46d82 | 2012-08-28 23:32:39 +0000 | [diff] [blame] | 3770 | /* Set image->alpha_trait to MagickTrue if the input colortype supports |
glennrp | 0a55b4c | 2011-03-23 12:38:38 +0000 | [diff] [blame] | 3771 | * alpha or if a valid tRNS chunk is present, no matter whether there |
| 3772 | * is actual transparency present. |
| 3773 | */ |
cristy | 8a46d82 | 2012-08-28 23:32:39 +0000 | [diff] [blame] | 3774 | image->alpha_trait=(((int) ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) || |
glennrp | 0a55b4c | 2011-03-23 12:38:38 +0000 | [diff] [blame] | 3775 | ((int) ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) || |
| 3776 | (png_get_valid(ping,ping_info,PNG_INFO_tRNS))) ? |
cristy | b0a657e | 2012-08-29 00:45:37 +0000 | [diff] [blame] | 3777 | BlendPixelTrait : UndefinedPixelTrait; |
glennrp | 0a55b4c | 2011-03-23 12:38:38 +0000 | [diff] [blame] | 3778 | |
glennrp | 224ad8d | 2013-02-01 17:04:04 +0000 | [diff] [blame] | 3779 | #if 0 /* I'm not sure what's wrong here but it does not work. */ |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 3780 | if (image->alpha_trait != UndefinedPixelTrait) |
glennrp | 5830fbc | 2013-01-27 06:11:45 +0000 | [diff] [blame] | 3781 | { |
| 3782 | if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) |
cristy | def23e5 | 2015-01-22 11:52:01 +0000 | [diff] [blame] | 3783 | (void) SetImageType(image,GrayscaleAlphaType,exception); |
glennrp | 5830fbc | 2013-01-27 06:11:45 +0000 | [diff] [blame] | 3784 | |
| 3785 | else if (ping_color_type == PNG_COLOR_TYPE_PALETTE) |
cristy | def23e5 | 2015-01-22 11:52:01 +0000 | [diff] [blame] | 3786 | (void) SetImageType(image,PaletteAlphaType,exception); |
glennrp | 5830fbc | 2013-01-27 06:11:45 +0000 | [diff] [blame] | 3787 | |
| 3788 | else |
cristy | def23e5 | 2015-01-22 11:52:01 +0000 | [diff] [blame] | 3789 | (void) SetImageType(image,TrueColorAlphaType,exception); |
glennrp | 5830fbc | 2013-01-27 06:11:45 +0000 | [diff] [blame] | 3790 | } |
| 3791 | |
| 3792 | else |
| 3793 | { |
| 3794 | if (ping_color_type == PNG_COLOR_TYPE_GRAY) |
| 3795 | (void) SetImageType(image,GrayscaleType,exception); |
| 3796 | |
| 3797 | else if (ping_color_type == PNG_COLOR_TYPE_PALETTE) |
| 3798 | (void) SetImageType(image,PaletteType,exception); |
| 3799 | |
| 3800 | else |
| 3801 | (void) SetImageType(image,TrueColorType,exception); |
| 3802 | } |
glennrp | 224ad8d | 2013-02-01 17:04:04 +0000 | [diff] [blame] | 3803 | #endif |
glennrp | 5830fbc | 2013-01-27 06:11:45 +0000 | [diff] [blame] | 3804 | |
glennrp | cb395ac | 2011-03-30 19:50:23 +0000 | [diff] [blame] | 3805 | /* Set more properties for identify to retrieve */ |
| 3806 | { |
| 3807 | char |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 3808 | msg[MagickPathExtent]; |
glennrp | cb395ac | 2011-03-30 19:50:23 +0000 | [diff] [blame] | 3809 | |
glennrp | 4eb3931 | 2011-03-30 21:34:55 +0000 | [diff] [blame] | 3810 | if (num_text_total != 0) |
glennrp | cb395ac | 2011-03-30 19:50:23 +0000 | [diff] [blame] | 3811 | { |
| 3812 | /* libpng doesn't tell us whether they were tEXt, zTXt, or iTXt */ |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 3813 | (void) FormatLocaleString(msg,MagickPathExtent, |
glennrp | 613276d | 2011-03-30 21:46:49 +0000 | [diff] [blame] | 3814 | "%d tEXt/zTXt/iTXt chunks were found", num_text_total); |
glennrp | 3398b5b | 2013-05-03 23:10:31 +0000 | [diff] [blame] | 3815 | (void) SetImageProperty(image,"png:text",msg, |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3816 | exception); |
glennrp | cb395ac | 2011-03-30 19:50:23 +0000 | [diff] [blame] | 3817 | } |
| 3818 | |
| 3819 | if (num_raw_profiles != 0) |
| 3820 | { |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 3821 | (void) FormatLocaleString(msg,MagickPathExtent, |
glennrp | cb395ac | 2011-03-30 19:50:23 +0000 | [diff] [blame] | 3822 | "%d were found", num_raw_profiles); |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3823 | (void) SetImageProperty(image,"png:text-encoded profiles",msg, |
| 3824 | exception); |
glennrp | cb395ac | 2011-03-30 19:50:23 +0000 | [diff] [blame] | 3825 | } |
| 3826 | |
glennrp | 98b83d4 | 2012-07-23 02:50:31 +0000 | [diff] [blame] | 3827 | if (ping_found_cHRM != MagickFalse) |
glennrp | 5961225 | 2011-03-30 21:45:21 +0000 | [diff] [blame] | 3828 | { |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 3829 | (void) FormatLocaleString(msg,MagickPathExtent,"%s", |
glennrp | 5961225 | 2011-03-30 21:45:21 +0000 | [diff] [blame] | 3830 | "chunk was found (see Chromaticity, above)"); |
glennrp | 3398b5b | 2013-05-03 23:10:31 +0000 | [diff] [blame] | 3831 | (void) SetImageProperty(image,"png:cHRM",msg, |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3832 | exception); |
glennrp | 5961225 | 2011-03-30 21:45:21 +0000 | [diff] [blame] | 3833 | } |
glennrp | cb395ac | 2011-03-30 19:50:23 +0000 | [diff] [blame] | 3834 | |
| 3835 | if (png_get_valid(ping,ping_info,PNG_INFO_bKGD)) |
glennrp | 5961225 | 2011-03-30 21:45:21 +0000 | [diff] [blame] | 3836 | { |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 3837 | (void) FormatLocaleString(msg,MagickPathExtent,"%s", |
glennrp | 5961225 | 2011-03-30 21:45:21 +0000 | [diff] [blame] | 3838 | "chunk was found (see Background color, above)"); |
glennrp | 3398b5b | 2013-05-03 23:10:31 +0000 | [diff] [blame] | 3839 | (void) SetImageProperty(image,"png:bKGD",msg, |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3840 | exception); |
glennrp | 5961225 | 2011-03-30 21:45:21 +0000 | [diff] [blame] | 3841 | } |
| 3842 | |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 3843 | (void) FormatLocaleString(msg,MagickPathExtent,"%s", |
glennrp | 5961225 | 2011-03-30 21:45:21 +0000 | [diff] [blame] | 3844 | "chunk was found"); |
glennrp | cb395ac | 2011-03-30 19:50:23 +0000 | [diff] [blame] | 3845 | |
glennrp | 98b83d4 | 2012-07-23 02:50:31 +0000 | [diff] [blame] | 3846 | #if defined(PNG_iCCP_SUPPORTED) |
| 3847 | if (ping_found_iCCP != MagickFalse) |
glennrp | 3398b5b | 2013-05-03 23:10:31 +0000 | [diff] [blame] | 3848 | (void) SetImageProperty(image,"png:iCCP",msg, |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3849 | exception); |
glennrp | 98b83d4 | 2012-07-23 02:50:31 +0000 | [diff] [blame] | 3850 | #endif |
glennrp | cb395ac | 2011-03-30 19:50:23 +0000 | [diff] [blame] | 3851 | |
glennrp | cb395ac | 2011-03-30 19:50:23 +0000 | [diff] [blame] | 3852 | if (png_get_valid(ping,ping_info,PNG_INFO_tRNS)) |
glennrp | 3398b5b | 2013-05-03 23:10:31 +0000 | [diff] [blame] | 3853 | (void) SetImageProperty(image,"png:tRNS",msg, |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3854 | exception); |
glennrp | 4eb3931 | 2011-03-30 21:34:55 +0000 | [diff] [blame] | 3855 | |
| 3856 | #if defined(PNG_sRGB_SUPPORTED) |
glennrp | 98b83d4 | 2012-07-23 02:50:31 +0000 | [diff] [blame] | 3857 | if (ping_found_sRGB != MagickFalse) |
glennrp | 4eb3931 | 2011-03-30 21:34:55 +0000 | [diff] [blame] | 3858 | { |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 3859 | (void) FormatLocaleString(msg,MagickPathExtent, |
glennrp | 98b83d4 | 2012-07-23 02:50:31 +0000 | [diff] [blame] | 3860 | "intent=%d (%s)", |
| 3861 | (int) intent, |
| 3862 | Magick_RenderingIntentString_from_PNG_RenderingIntent(intent)); |
glennrp | 3398b5b | 2013-05-03 23:10:31 +0000 | [diff] [blame] | 3863 | (void) SetImageProperty(image,"png:sRGB",msg, |
glennrp | 98b83d4 | 2012-07-23 02:50:31 +0000 | [diff] [blame] | 3864 | exception); |
glennrp | 4eb3931 | 2011-03-30 21:34:55 +0000 | [diff] [blame] | 3865 | } |
| 3866 | #endif |
| 3867 | |
glennrp | 98b83d4 | 2012-07-23 02:50:31 +0000 | [diff] [blame] | 3868 | if (ping_found_gAMA != MagickFalse) |
glennrp | 4eb3931 | 2011-03-30 21:34:55 +0000 | [diff] [blame] | 3869 | { |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 3870 | (void) FormatLocaleString(msg,MagickPathExtent, |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3871 | "gamma=%.8g (See Gamma, above)", |
| 3872 | file_gamma); |
glennrp | 3398b5b | 2013-05-03 23:10:31 +0000 | [diff] [blame] | 3873 | (void) SetImageProperty(image,"png:gAMA",msg, |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3874 | exception); |
glennrp | 4eb3931 | 2011-03-30 21:34:55 +0000 | [diff] [blame] | 3875 | } |
| 3876 | |
| 3877 | #if defined(PNG_pHYs_SUPPORTED) |
| 3878 | if (png_get_valid(ping,ping_info,PNG_INFO_pHYs)) |
| 3879 | { |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 3880 | (void) FormatLocaleString(msg,MagickPathExtent, |
glennrp | 07523c7 | 2011-03-31 18:12:10 +0000 | [diff] [blame] | 3881 | "x_res=%.10g, y_res=%.10g, units=%d", |
glennrp | 4eb3931 | 2011-03-30 21:34:55 +0000 | [diff] [blame] | 3882 | (double) x_resolution,(double) y_resolution, unit_type); |
glennrp | 3398b5b | 2013-05-03 23:10:31 +0000 | [diff] [blame] | 3883 | (void) SetImageProperty(image,"png:pHYs",msg, |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3884 | exception); |
glennrp | 4eb3931 | 2011-03-30 21:34:55 +0000 | [diff] [blame] | 3885 | } |
| 3886 | #endif |
| 3887 | |
| 3888 | #if defined(PNG_oFFs_SUPPORTED) |
| 3889 | if (png_get_valid(ping,ping_info,PNG_INFO_oFFs)) |
| 3890 | { |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 3891 | (void) FormatLocaleString(msg,MagickPathExtent,"x_off=%.20g, y_off=%.20g", |
glennrp | 4eb3931 | 2011-03-30 21:34:55 +0000 | [diff] [blame] | 3892 | (double) image->page.x,(double) image->page.y); |
glennrp | 3398b5b | 2013-05-03 23:10:31 +0000 | [diff] [blame] | 3893 | (void) SetImageProperty(image,"png:oFFs",msg, |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3894 | exception); |
glennrp | 4eb3931 | 2011-03-30 21:34:55 +0000 | [diff] [blame] | 3895 | } |
| 3896 | #endif |
| 3897 | |
dirk | fd6fd07 | 2014-10-24 21:10:08 +0000 | [diff] [blame] | 3898 | #if defined(PNG_tIME_SUPPORTED) |
| 3899 | read_tIME_chunk(image,ping,end_info,exception); |
| 3900 | #endif |
| 3901 | |
glennrp | 07523c7 | 2011-03-31 18:12:10 +0000 | [diff] [blame] | 3902 | if ((image->page.width != 0 && image->page.width != image->columns) || |
| 3903 | (image->page.height != 0 && image->page.height != image->rows)) |
| 3904 | { |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 3905 | (void) FormatLocaleString(msg,MagickPathExtent, |
glennrp | 07523c7 | 2011-03-31 18:12:10 +0000 | [diff] [blame] | 3906 | "width=%.20g, height=%.20g", |
| 3907 | (double) image->page.width,(double) image->page.height); |
glennrp | 3398b5b | 2013-05-03 23:10:31 +0000 | [diff] [blame] | 3908 | (void) SetImageProperty(image,"png:vpAg",msg, |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3909 | exception); |
glennrp | 07523c7 | 2011-03-31 18:12:10 +0000 | [diff] [blame] | 3910 | } |
glennrp | cb395ac | 2011-03-30 19:50:23 +0000 | [diff] [blame] | 3911 | } |
| 3912 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3913 | /* |
| 3914 | Relinquish resources. |
| 3915 | */ |
| 3916 | png_destroy_read_struct(&ping,&ping_info,&end_info); |
| 3917 | |
cristy | 0997332 | 2013-06-30 21:06:30 +0000 | [diff] [blame] | 3918 | pixel_info=RelinquishVirtualMemory(pixel_info); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3919 | |
| 3920 | if (logging != MagickFalse) |
| 3921 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 3922 | " exit ReadOnePNGImage()"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 3923 | |
glennrp | 868fff3 | 2014-03-16 22:09:06 +0000 | [diff] [blame] | 3924 | #ifdef IMPNG_SETJMP_NOT_THREAD_SAFE |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 3925 | UnlockSemaphoreInfo(ping_semaphore); |
| 3926 | #endif |
| 3927 | |
| 3928 | /* } for navigation to beginning of SETJMP-protected block, revert to |
| 3929 | * Throwing an Exception when an error occurs. |
| 3930 | */ |
| 3931 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3932 | return(image); |
| 3933 | |
| 3934 | /* end of reading one PNG image */ |
| 3935 | } |
| 3936 | |
| 3937 | static Image *ReadPNGImage(const ImageInfo *image_info,ExceptionInfo *exception) |
| 3938 | { |
| 3939 | Image |
glennrp | 9194299 | 2014-11-25 00:46:19 +0000 | [diff] [blame] | 3940 | *image; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3941 | |
| 3942 | MagickBooleanType |
glennrp | 21f0e62 | 2011-01-07 16:20:57 +0000 | [diff] [blame] | 3943 | have_mng_structure, |
| 3944 | logging, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3945 | status; |
| 3946 | |
| 3947 | MngInfo |
| 3948 | *mng_info; |
| 3949 | |
| 3950 | char |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 3951 | magic_number[MagickPathExtent]; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3952 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3953 | ssize_t |
| 3954 | count; |
| 3955 | |
| 3956 | /* |
| 3957 | Open image file. |
| 3958 | */ |
| 3959 | assert(image_info != (const ImageInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 3960 | assert(image_info->signature == MagickCoreSignature); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 3961 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3962 | if (image_info->debug != MagickFalse) |
| 3963 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", |
| 3964 | image_info->filename); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 3965 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3966 | assert(exception != (ExceptionInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 3967 | assert(exception->signature == MagickCoreSignature); |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 3968 | logging=LogMagickEvent(CoderEvent,GetMagickModule(),"Enter ReadPNGImage()"); |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 3969 | image=AcquireImage(image_info,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3970 | mng_info=(MngInfo *) NULL; |
| 3971 | status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 3972 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3973 | if (status == MagickFalse) |
| 3974 | ThrowReaderException(FileOpenError,"UnableToOpenFile"); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 3975 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3976 | /* |
| 3977 | Verify PNG signature. |
| 3978 | */ |
| 3979 | count=ReadBlob(image,8,(unsigned char *) magic_number); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 3980 | |
glennrp | dde35db | 2011-02-21 12:06:32 +0000 | [diff] [blame] | 3981 | if (count < 8 || memcmp(magic_number,"\211PNG\r\n\032\n",8) != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3982 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 3983 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3984 | /* |
| 3985 | Allocate a MngInfo structure. |
| 3986 | */ |
| 3987 | have_mng_structure=MagickFalse; |
cristy | 73bd4a5 | 2010-10-05 11:24:23 +0000 | [diff] [blame] | 3988 | mng_info=(MngInfo *) AcquireMagickMemory(sizeof(MngInfo)); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 3989 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3990 | if (mng_info == (MngInfo *) NULL) |
| 3991 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 3992 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3993 | /* |
| 3994 | Initialize members of the MngInfo structure. |
| 3995 | */ |
| 3996 | (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); |
| 3997 | mng_info->image=image; |
| 3998 | have_mng_structure=MagickTrue; |
| 3999 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4000 | image=ReadOnePNGImage(mng_info,image_info,exception); |
| 4001 | MngInfoFreeStruct(mng_info,&have_mng_structure); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4002 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4003 | if (image == (Image *) NULL) |
| 4004 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4005 | if (logging != MagickFalse) |
| 4006 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 4007 | "exit ReadPNGImage() with error"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4008 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4009 | return((Image *) NULL); |
| 4010 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4011 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4012 | (void) CloseBlob(image); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4013 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4014 | if ((image->columns == 0) || (image->rows == 0)) |
| 4015 | { |
| 4016 | if (logging != MagickFalse) |
| 4017 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 4018 | "exit ReadPNGImage() with error."); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4019 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4020 | ThrowReaderException(CorruptImageError,"CorruptImage"); |
| 4021 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4022 | |
cristy | 72715f5 | 2012-06-26 17:55:16 +0000 | [diff] [blame] | 4023 | if ((IssRGBColorspace(image->colorspace) != MagickFalse) && |
glennrp | 3d62786 | 2013-02-26 00:19:34 +0000 | [diff] [blame] | 4024 | ((image->gamma < .45) || (image->gamma > .46)) && |
| 4025 | !(image->chromaticity.red_primary.x>0.6399f && |
| 4026 | image->chromaticity.red_primary.x<0.6401f && |
| 4027 | image->chromaticity.red_primary.y>0.3299f && |
| 4028 | image->chromaticity.red_primary.y<0.3301f && |
| 4029 | image->chromaticity.green_primary.x>0.2999f && |
| 4030 | image->chromaticity.green_primary.x<0.3001f && |
| 4031 | image->chromaticity.green_primary.y>0.5999f && |
| 4032 | image->chromaticity.green_primary.y<0.6001f && |
| 4033 | image->chromaticity.blue_primary.x>0.1499f && |
| 4034 | image->chromaticity.blue_primary.x<0.1501f && |
| 4035 | image->chromaticity.blue_primary.y>0.0599f && |
| 4036 | image->chromaticity.blue_primary.y<0.0601f && |
| 4037 | image->chromaticity.white_point.x>0.3126f && |
| 4038 | image->chromaticity.white_point.x<0.3128f && |
| 4039 | image->chromaticity.white_point.y>0.3289f && |
| 4040 | image->chromaticity.white_point.y<0.3291f)) |
glennrp | ccc36af | 2014-09-08 23:22:03 +0000 | [diff] [blame] | 4041 | { |
| 4042 | SetImageColorspace(image,RGBColorspace,exception); |
| 4043 | } |
cristy | 72715f5 | 2012-06-26 17:55:16 +0000 | [diff] [blame] | 4044 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4045 | if (logging != MagickFalse) |
glennrp | ccc36af | 2014-09-08 23:22:03 +0000 | [diff] [blame] | 4046 | { |
| 4047 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 4048 | " page.w: %.20g, page.h: %.20g,page.x: %.20g, page.y: %.20g.", |
| 4049 | (double) image->page.width,(double) image->page.height, |
| 4050 | (double) image->page.x,(double) image->page.y); |
| 4051 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 4052 | " image->colorspace: %d", (int) image->colorspace); |
| 4053 | } |
glennrp | 97f90e2 | 2011-02-22 05:47:58 +0000 | [diff] [blame] | 4054 | |
| 4055 | if (logging != MagickFalse) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4056 | (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadPNGImage()"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4057 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4058 | return(image); |
| 4059 | } |
| 4060 | |
| 4061 | |
| 4062 | |
| 4063 | #if defined(JNG_SUPPORTED) |
| 4064 | /* |
| 4065 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 4066 | % % |
| 4067 | % % |
| 4068 | % % |
| 4069 | % R e a d O n e J N G I m a g e % |
| 4070 | % % |
| 4071 | % % |
| 4072 | % % |
| 4073 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 4074 | % |
| 4075 | % ReadOneJNGImage() reads a JPEG Network Graphics (JNG) image file |
| 4076 | % (minus the 8-byte signature) and returns it. It allocates the memory |
| 4077 | % necessary for the new Image structure and returns a pointer to the new |
| 4078 | % image. |
| 4079 | % |
| 4080 | % JNG support written by Glenn Randers-Pehrson, glennrp@image... |
| 4081 | % |
| 4082 | % The format of the ReadOneJNGImage method is: |
| 4083 | % |
| 4084 | % Image *ReadOneJNGImage(MngInfo *mng_info, const ImageInfo *image_info, |
| 4085 | % ExceptionInfo *exception) |
| 4086 | % |
| 4087 | % A description of each parameter follows: |
| 4088 | % |
| 4089 | % o mng_info: Specifies a pointer to a MngInfo structure. |
| 4090 | % |
| 4091 | % o image_info: the image info. |
| 4092 | % |
| 4093 | % o exception: return any errors or warnings in this structure. |
| 4094 | % |
| 4095 | */ |
| 4096 | static Image *ReadOneJNGImage(MngInfo *mng_info, |
| 4097 | const ImageInfo *image_info, ExceptionInfo *exception) |
| 4098 | { |
| 4099 | Image |
| 4100 | *alpha_image, |
| 4101 | *color_image, |
| 4102 | *image, |
| 4103 | *jng_image; |
| 4104 | |
| 4105 | ImageInfo |
| 4106 | *alpha_image_info, |
| 4107 | *color_image_info; |
| 4108 | |
cristy | 4383ec8 | 2011-01-05 15:42:32 +0000 | [diff] [blame] | 4109 | MagickBooleanType |
| 4110 | logging; |
| 4111 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4112 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4113 | y; |
| 4114 | |
| 4115 | MagickBooleanType |
| 4116 | status; |
| 4117 | |
| 4118 | png_uint_32 |
| 4119 | jng_height, |
| 4120 | jng_width; |
| 4121 | |
| 4122 | png_byte |
| 4123 | jng_color_type, |
| 4124 | jng_image_sample_depth, |
| 4125 | jng_image_compression_method, |
| 4126 | jng_image_interlace_method, |
| 4127 | jng_alpha_sample_depth, |
| 4128 | jng_alpha_compression_method, |
| 4129 | jng_alpha_filter_method, |
| 4130 | jng_alpha_interlace_method; |
| 4131 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 4132 | register const Quantum |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4133 | *s; |
| 4134 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4135 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4136 | i, |
| 4137 | x; |
| 4138 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 4139 | register Quantum |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4140 | *q; |
| 4141 | |
| 4142 | register unsigned char |
| 4143 | *p; |
| 4144 | |
| 4145 | unsigned int |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4146 | read_JSEP, |
glennrp | e0421fe | 2014-06-08 02:04:34 +0000 | [diff] [blame] | 4147 | reading_idat; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4148 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4149 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4150 | length; |
| 4151 | |
| 4152 | jng_alpha_compression_method=0; |
| 4153 | jng_alpha_sample_depth=8; |
| 4154 | jng_color_type=0; |
| 4155 | jng_height=0; |
| 4156 | jng_width=0; |
| 4157 | alpha_image=(Image *) NULL; |
| 4158 | color_image=(Image *) NULL; |
| 4159 | alpha_image_info=(ImageInfo *) NULL; |
| 4160 | color_image_info=(ImageInfo *) NULL; |
| 4161 | |
| 4162 | logging=LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 4163 | " Enter ReadOneJNGImage()"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4164 | |
| 4165 | image=mng_info->image; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4166 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 4167 | if (GetAuthenticPixelQueue(image) != (Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4168 | { |
| 4169 | /* |
| 4170 | Allocate next image structure. |
| 4171 | */ |
| 4172 | if (logging != MagickFalse) |
| 4173 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 4174 | " AcquireNextImage()"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4175 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 4176 | AcquireNextImage(image_info,image,exception); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4177 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4178 | if (GetNextImageInList(image) == (Image *) NULL) |
| 4179 | return((Image *) NULL); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4180 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4181 | image=SyncNextImageInList(image); |
| 4182 | } |
| 4183 | mng_info->image=image; |
| 4184 | |
| 4185 | /* |
| 4186 | Signature bytes have already been read. |
| 4187 | */ |
| 4188 | |
| 4189 | read_JSEP=MagickFalse; |
| 4190 | reading_idat=MagickFalse; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4191 | for (;;) |
| 4192 | { |
| 4193 | char |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 4194 | type[MagickPathExtent]; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4195 | |
| 4196 | unsigned char |
| 4197 | *chunk; |
| 4198 | |
| 4199 | unsigned int |
| 4200 | count; |
| 4201 | |
| 4202 | /* |
| 4203 | Read a new JNG chunk. |
| 4204 | */ |
| 4205 | status=SetImageProgress(image,LoadImagesTag,TellBlob(image), |
| 4206 | 2*GetBlobSize(image)); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4207 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4208 | if (status == MagickFalse) |
| 4209 | break; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4210 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4211 | type[0]='\0'; |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 4212 | (void) ConcatenateMagickString(type,"errr",MagickPathExtent); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4213 | length=ReadBlobMSBLong(image); |
| 4214 | count=(unsigned int) ReadBlob(image,4,(unsigned char *) type); |
| 4215 | |
| 4216 | if (logging != MagickFalse) |
| 4217 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 4218 | " Reading JNG chunk type %c%c%c%c, length: %.20g", |
| 4219 | type[0],type[1],type[2],type[3],(double) length); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4220 | |
| 4221 | if (length > PNG_UINT_31_MAX || count == 0) |
dirk | 6af512a | 2014-12-14 20:12:39 +0000 | [diff] [blame] | 4222 | ThrowReaderException(CorruptImageError,"CorruptImage"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4223 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4224 | p=NULL; |
| 4225 | chunk=(unsigned char *) NULL; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4226 | |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 4227 | if (length != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4228 | { |
| 4229 | chunk=(unsigned char *) AcquireQuantumMemory(length,sizeof(*chunk)); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4230 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4231 | if (chunk == (unsigned char *) NULL) |
| 4232 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4233 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4234 | for (i=0; i < (ssize_t) length; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4235 | chunk[i]=(unsigned char) ReadBlobByte(image); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4236 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4237 | p=chunk; |
| 4238 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4239 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4240 | (void) ReadBlobMSBLong(image); /* read crc word */ |
| 4241 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4242 | if (memcmp(type,mng_JHDR,4) == 0) |
| 4243 | { |
| 4244 | if (length == 16) |
| 4245 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4246 | jng_width=(size_t) ((p[0] << 24) | (p[1] << 16) | |
cristy | e2440c2 | 2014-05-18 12:54:47 +0000 | [diff] [blame] | 4247 | (p[2] << 8) | p[3]); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4248 | jng_height=(size_t) ((p[4] << 24) | (p[5] << 16) | |
cristy | e2440c2 | 2014-05-18 12:54:47 +0000 | [diff] [blame] | 4249 | (p[6] << 8) | p[7]); |
| 4250 | if ((jng_width == 0) || (jng_height == 0)) |
| 4251 | ThrowReaderException(CorruptImageError,"NegativeOrZeroImageSize"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4252 | jng_color_type=p[8]; |
| 4253 | jng_image_sample_depth=p[9]; |
| 4254 | jng_image_compression_method=p[10]; |
| 4255 | jng_image_interlace_method=p[11]; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4256 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4257 | image->interlace=jng_image_interlace_method != 0 ? PNGInterlace : |
| 4258 | NoInterlace; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4259 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4260 | jng_alpha_sample_depth=p[12]; |
| 4261 | jng_alpha_compression_method=p[13]; |
| 4262 | jng_alpha_filter_method=p[14]; |
| 4263 | jng_alpha_interlace_method=p[15]; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4264 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4265 | if (logging != MagickFalse) |
| 4266 | { |
| 4267 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 2dd1906 | 2014-07-28 00:22:24 +0000 | [diff] [blame] | 4268 | " jng_width: %16lu, jng_height: %16lu\n" |
| 4269 | " jng_color_type: %16d, jng_image_sample_depth: %3d\n" |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4270 | " jng_image_compression_method:%3d", |
glennrp | 2dd1906 | 2014-07-28 00:22:24 +0000 | [diff] [blame] | 4271 | (unsigned long) jng_width, (unsigned long) jng_height, |
| 4272 | jng_color_type, jng_image_sample_depth, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4273 | jng_image_compression_method); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4274 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4275 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 2dd1906 | 2014-07-28 00:22:24 +0000 | [diff] [blame] | 4276 | " jng_image_interlace_method: %3d" |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4277 | " jng_alpha_sample_depth: %3d", |
glennrp | 2dd1906 | 2014-07-28 00:22:24 +0000 | [diff] [blame] | 4278 | jng_image_interlace_method, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4279 | jng_alpha_sample_depth); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4280 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4281 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 2dd1906 | 2014-07-28 00:22:24 +0000 | [diff] [blame] | 4282 | " jng_alpha_compression_method:%3d\n" |
| 4283 | " jng_alpha_filter_method: %3d\n" |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4284 | " jng_alpha_interlace_method: %3d", |
glennrp | 2dd1906 | 2014-07-28 00:22:24 +0000 | [diff] [blame] | 4285 | jng_alpha_compression_method, |
| 4286 | jng_alpha_filter_method, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4287 | jng_alpha_interlace_method); |
| 4288 | } |
| 4289 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4290 | |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 4291 | if (length != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4292 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4293 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4294 | continue; |
| 4295 | } |
| 4296 | |
| 4297 | |
| 4298 | if ((reading_idat == MagickFalse) && (read_JSEP == MagickFalse) && |
| 4299 | ((memcmp(type,mng_JDAT,4) == 0) || (memcmp(type,mng_JdAA,4) == 0) || |
| 4300 | (memcmp(type,mng_IDAT,4) == 0) || (memcmp(type,mng_JDAA,4) == 0))) |
| 4301 | { |
| 4302 | /* |
| 4303 | o create color_image |
| 4304 | o open color_blob, attached to color_image |
| 4305 | o if (color type has alpha) |
| 4306 | open alpha_blob, attached to alpha_image |
| 4307 | */ |
| 4308 | |
cristy | 73bd4a5 | 2010-10-05 11:24:23 +0000 | [diff] [blame] | 4309 | color_image_info=(ImageInfo *)AcquireMagickMemory(sizeof(ImageInfo)); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4310 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4311 | if (color_image_info == (ImageInfo *) NULL) |
| 4312 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4313 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4314 | GetImageInfo(color_image_info); |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 4315 | color_image=AcquireImage(color_image_info,exception); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4316 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4317 | if (color_image == (Image *) NULL) |
| 4318 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
| 4319 | |
| 4320 | if (logging != MagickFalse) |
| 4321 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 4322 | " Creating color_blob."); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4323 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4324 | (void) AcquireUniqueFilename(color_image->filename); |
| 4325 | status=OpenBlob(color_image_info,color_image,WriteBinaryBlobMode, |
| 4326 | exception); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4327 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4328 | if (status == MagickFalse) |
| 4329 | return((Image *) NULL); |
| 4330 | |
| 4331 | if ((image_info->ping == MagickFalse) && (jng_color_type >= 12)) |
| 4332 | { |
| 4333 | alpha_image_info=(ImageInfo *) |
cristy | 73bd4a5 | 2010-10-05 11:24:23 +0000 | [diff] [blame] | 4334 | AcquireMagickMemory(sizeof(ImageInfo)); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4335 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4336 | if (alpha_image_info == (ImageInfo *) NULL) |
| 4337 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4338 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4339 | GetImageInfo(alpha_image_info); |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 4340 | alpha_image=AcquireImage(alpha_image_info,exception); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4341 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4342 | if (alpha_image == (Image *) NULL) |
| 4343 | { |
| 4344 | alpha_image=DestroyImage(alpha_image); |
| 4345 | ThrowReaderException(ResourceLimitError, |
| 4346 | "MemoryAllocationFailed"); |
| 4347 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4348 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4349 | if (logging != MagickFalse) |
| 4350 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 4351 | " Creating alpha_blob."); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4352 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4353 | (void) AcquireUniqueFilename(alpha_image->filename); |
| 4354 | status=OpenBlob(alpha_image_info,alpha_image,WriteBinaryBlobMode, |
| 4355 | exception); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4356 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4357 | if (status == MagickFalse) |
| 4358 | return((Image *) NULL); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4359 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4360 | if (jng_alpha_compression_method == 0) |
| 4361 | { |
| 4362 | unsigned char |
| 4363 | data[18]; |
| 4364 | |
| 4365 | if (logging != MagickFalse) |
| 4366 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 4367 | " Writing IHDR chunk to alpha_blob."); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4368 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4369 | (void) WriteBlob(alpha_image,8,(const unsigned char *) |
| 4370 | "\211PNG\r\n\032\n"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4371 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4372 | (void) WriteBlobMSBULong(alpha_image,13L); |
| 4373 | PNGType(data,mng_IHDR); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 4374 | LogPNGChunk(logging,mng_IHDR,13L); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4375 | PNGLong(data+4,jng_width); |
| 4376 | PNGLong(data+8,jng_height); |
| 4377 | data[12]=jng_alpha_sample_depth; |
| 4378 | data[13]=0; /* color_type gray */ |
| 4379 | data[14]=0; /* compression method 0 */ |
| 4380 | data[15]=0; /* filter_method 0 */ |
| 4381 | data[16]=0; /* interlace_method 0 */ |
| 4382 | (void) WriteBlob(alpha_image,17,data); |
| 4383 | (void) WriteBlobMSBULong(alpha_image,crc32(0,data,17)); |
| 4384 | } |
| 4385 | } |
| 4386 | reading_idat=MagickTrue; |
| 4387 | } |
| 4388 | |
| 4389 | if (memcmp(type,mng_JDAT,4) == 0) |
| 4390 | { |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4391 | /* Copy chunk to color_image->blob */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4392 | |
| 4393 | if (logging != MagickFalse) |
| 4394 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 4395 | " Copying JDAT chunk data to color_blob."); |
| 4396 | |
| 4397 | (void) WriteBlob(color_image,length,chunk); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4398 | |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 4399 | if (length != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4400 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4401 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4402 | continue; |
| 4403 | } |
| 4404 | |
| 4405 | if (memcmp(type,mng_IDAT,4) == 0) |
| 4406 | { |
| 4407 | png_byte |
| 4408 | data[5]; |
| 4409 | |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4410 | /* Copy IDAT header and chunk data to alpha_image->blob */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4411 | |
glennrp | 889a928 | 2015-04-09 16:51:44 +0000 | [diff] [blame] | 4412 | if (alpha_image != NULL && image_info->ping == MagickFalse) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4413 | { |
| 4414 | if (logging != MagickFalse) |
| 4415 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 4416 | " Copying IDAT chunk data to alpha_blob."); |
| 4417 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4418 | (void) WriteBlobMSBULong(alpha_image,(size_t) length); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4419 | PNGType(data,mng_IDAT); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 4420 | LogPNGChunk(logging,mng_IDAT,length); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4421 | (void) WriteBlob(alpha_image,4,data); |
| 4422 | (void) WriteBlob(alpha_image,length,chunk); |
| 4423 | (void) WriteBlobMSBULong(alpha_image, |
| 4424 | crc32(crc32(0,data,4),chunk,(uInt) length)); |
| 4425 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4426 | |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 4427 | if (length != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4428 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4429 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4430 | continue; |
| 4431 | } |
| 4432 | |
| 4433 | if ((memcmp(type,mng_JDAA,4) == 0) || (memcmp(type,mng_JdAA,4) == 0)) |
| 4434 | { |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4435 | /* Copy chunk data to alpha_image->blob */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4436 | |
glennrp | 889a928 | 2015-04-09 16:51:44 +0000 | [diff] [blame] | 4437 | if (alpha_image != NULL && image_info->ping == MagickFalse) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4438 | { |
| 4439 | if (logging != MagickFalse) |
| 4440 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 4441 | " Copying JDAA chunk data to alpha_blob."); |
| 4442 | |
| 4443 | (void) WriteBlob(alpha_image,length,chunk); |
| 4444 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4445 | |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 4446 | if (length != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4447 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4448 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4449 | continue; |
| 4450 | } |
| 4451 | |
| 4452 | if (memcmp(type,mng_JSEP,4) == 0) |
| 4453 | { |
| 4454 | read_JSEP=MagickTrue; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4455 | |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 4456 | if (length != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4457 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4458 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4459 | continue; |
| 4460 | } |
| 4461 | |
| 4462 | if (memcmp(type,mng_bKGD,4) == 0) |
| 4463 | { |
| 4464 | if (length == 2) |
| 4465 | { |
| 4466 | image->background_color.red=ScaleCharToQuantum(p[1]); |
| 4467 | image->background_color.green=image->background_color.red; |
| 4468 | image->background_color.blue=image->background_color.red; |
| 4469 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4470 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4471 | if (length == 6) |
| 4472 | { |
| 4473 | image->background_color.red=ScaleCharToQuantum(p[1]); |
| 4474 | image->background_color.green=ScaleCharToQuantum(p[3]); |
| 4475 | image->background_color.blue=ScaleCharToQuantum(p[5]); |
| 4476 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4477 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4478 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
| 4479 | continue; |
| 4480 | } |
| 4481 | |
| 4482 | if (memcmp(type,mng_gAMA,4) == 0) |
| 4483 | { |
| 4484 | if (length == 4) |
cristy | 8182b07 | 2010-05-30 20:10:53 +0000 | [diff] [blame] | 4485 | image->gamma=((float) mng_get_long(p))*0.00001; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4486 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4487 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
| 4488 | continue; |
| 4489 | } |
| 4490 | |
| 4491 | if (memcmp(type,mng_cHRM,4) == 0) |
| 4492 | { |
| 4493 | if (length == 32) |
| 4494 | { |
cristy | 8182b07 | 2010-05-30 20:10:53 +0000 | [diff] [blame] | 4495 | image->chromaticity.white_point.x=0.00001*mng_get_long(p); |
| 4496 | image->chromaticity.white_point.y=0.00001*mng_get_long(&p[4]); |
| 4497 | image->chromaticity.red_primary.x=0.00001*mng_get_long(&p[8]); |
| 4498 | image->chromaticity.red_primary.y=0.00001*mng_get_long(&p[12]); |
| 4499 | image->chromaticity.green_primary.x=0.00001*mng_get_long(&p[16]); |
| 4500 | image->chromaticity.green_primary.y=0.00001*mng_get_long(&p[20]); |
| 4501 | image->chromaticity.blue_primary.x=0.00001*mng_get_long(&p[24]); |
| 4502 | image->chromaticity.blue_primary.y=0.00001*mng_get_long(&p[28]); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4503 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4504 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4505 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
| 4506 | continue; |
| 4507 | } |
| 4508 | |
| 4509 | if (memcmp(type,mng_sRGB,4) == 0) |
| 4510 | { |
| 4511 | if (length == 1) |
| 4512 | { |
glennrp | e610a07 | 2010-08-05 17:08:46 +0000 | [diff] [blame] | 4513 | image->rendering_intent= |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 4514 | Magick_RenderingIntent_from_PNG_RenderingIntent(p[0]); |
cristy | da7803d | 2012-05-03 01:22:45 +0000 | [diff] [blame] | 4515 | image->gamma=1.000f/2.200f; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4516 | image->chromaticity.red_primary.x=0.6400f; |
| 4517 | image->chromaticity.red_primary.y=0.3300f; |
| 4518 | image->chromaticity.green_primary.x=0.3000f; |
| 4519 | image->chromaticity.green_primary.y=0.6000f; |
| 4520 | image->chromaticity.blue_primary.x=0.1500f; |
| 4521 | image->chromaticity.blue_primary.y=0.0600f; |
| 4522 | image->chromaticity.white_point.x=0.3127f; |
| 4523 | image->chromaticity.white_point.y=0.3290f; |
| 4524 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4525 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4526 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
| 4527 | continue; |
| 4528 | } |
| 4529 | |
| 4530 | if (memcmp(type,mng_oFFs,4) == 0) |
| 4531 | { |
| 4532 | if (length > 8) |
| 4533 | { |
glennrp | 5eae760 | 2011-02-22 15:21:32 +0000 | [diff] [blame] | 4534 | image->page.x=(ssize_t) mng_get_long(p); |
| 4535 | image->page.y=(ssize_t) mng_get_long(&p[4]); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4536 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4537 | if ((int) p[8] != 0) |
| 4538 | { |
| 4539 | image->page.x/=10000; |
| 4540 | image->page.y/=10000; |
| 4541 | } |
| 4542 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4543 | |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 4544 | if (length != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4545 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4546 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4547 | continue; |
| 4548 | } |
| 4549 | |
| 4550 | if (memcmp(type,mng_pHYs,4) == 0) |
| 4551 | { |
| 4552 | if (length > 8) |
| 4553 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 4554 | image->resolution.x=(double) mng_get_long(p); |
| 4555 | image->resolution.y=(double) mng_get_long(&p[4]); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4556 | if ((int) p[8] == PNG_RESOLUTION_METER) |
| 4557 | { |
| 4558 | image->units=PixelsPerCentimeterResolution; |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 4559 | image->resolution.x=image->resolution.x/100.0f; |
| 4560 | image->resolution.y=image->resolution.y/100.0f; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4561 | } |
| 4562 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4563 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4564 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
| 4565 | continue; |
| 4566 | } |
| 4567 | |
| 4568 | #if 0 |
| 4569 | if (memcmp(type,mng_iCCP,4) == 0) |
| 4570 | { |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 4571 | /* To do: */ |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 4572 | if (length != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4573 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4574 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4575 | continue; |
| 4576 | } |
| 4577 | #endif |
| 4578 | |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 4579 | if (length != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4580 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
| 4581 | |
| 4582 | if (memcmp(type,mng_IEND,4)) |
| 4583 | continue; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4584 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4585 | break; |
| 4586 | } |
| 4587 | |
| 4588 | |
| 4589 | /* IEND found */ |
| 4590 | |
| 4591 | /* |
| 4592 | Finish up reading image data: |
| 4593 | |
| 4594 | o read main image from color_blob. |
| 4595 | |
| 4596 | o close color_blob. |
| 4597 | |
| 4598 | o if (color_type has alpha) |
| 4599 | if alpha_encoding is PNG |
| 4600 | read secondary image from alpha_blob via ReadPNG |
| 4601 | if alpha_encoding is JPEG |
| 4602 | read secondary image from alpha_blob via ReadJPEG |
| 4603 | |
| 4604 | o close alpha_blob. |
| 4605 | |
| 4606 | o copy intensity of secondary image into |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 4607 | alpha samples of main image. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4608 | |
| 4609 | o destroy the secondary image. |
| 4610 | */ |
| 4611 | |
Cristy | 3256579 | 2015-09-17 20:44:51 -0400 | [diff] [blame] | 4612 | if (color_image_info == (ImageInfo *) NULL) |
| 4613 | { |
| 4614 | assert(color_image == (Image *) NULL); |
| 4615 | assert(alpha_image == (Image *) NULL); |
| 4616 | return((Image *) NULL); |
| 4617 | } |
| 4618 | |
| 4619 | if (color_image == (Image *) NULL) |
| 4620 | { |
| 4621 | assert(alpha_image == (Image *) NULL); |
| 4622 | return((Image *) NULL); |
| 4623 | } |
| 4624 | |
| 4625 | (void) SeekBlob(color_image,0,SEEK_SET); |
| 4626 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4627 | if (logging != MagickFalse) |
| 4628 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 4629 | " Reading jng_image from color_blob."); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4630 | |
cristy | f0eec75 | 2014-01-16 01:28:43 +0000 | [diff] [blame] | 4631 | assert(color_image_info != (ImageInfo *) NULL); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 4632 | (void) FormatLocaleString(color_image_info->filename,MagickPathExtent,"%s", |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4633 | color_image->filename); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4634 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4635 | color_image_info->ping=MagickFalse; /* To do: avoid this */ |
| 4636 | jng_image=ReadImage(color_image_info,exception); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4637 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4638 | (void) RelinquishUniqueFileResource(color_image->filename); |
| 4639 | color_image=DestroyImage(color_image); |
| 4640 | color_image_info=DestroyImageInfo(color_image_info); |
| 4641 | |
| 4642 | if (jng_image == (Image *) NULL) |
| 4643 | return((Image *) NULL); |
| 4644 | |
| 4645 | if (logging != MagickFalse) |
| 4646 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 4647 | " Copying jng_image pixels to main image."); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4648 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4649 | image->rows=jng_height; |
| 4650 | image->columns=jng_width; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4651 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4652 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4653 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 4654 | s=GetVirtualPixels(jng_image,0,y,image->columns,1,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4655 | q=GetAuthenticPixels(image,0,y,image->columns,1,exception); |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 4656 | for (x=(ssize_t) image->columns; x != 0; x--) |
| 4657 | { |
| 4658 | SetPixelRed(image,GetPixelRed(jng_image,s),q); |
| 4659 | SetPixelGreen(image,GetPixelGreen(jng_image,s),q); |
| 4660 | SetPixelBlue(image,GetPixelBlue(jng_image,s),q); |
| 4661 | q+=GetPixelChannels(image); |
| 4662 | s+=GetPixelChannels(jng_image); |
| 4663 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4664 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4665 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 4666 | break; |
| 4667 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4668 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4669 | jng_image=DestroyImage(jng_image); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4670 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4671 | if (image_info->ping == MagickFalse) |
| 4672 | { |
| 4673 | if (jng_color_type >= 12) |
| 4674 | { |
| 4675 | if (jng_alpha_compression_method == 0) |
| 4676 | { |
| 4677 | png_byte |
| 4678 | data[5]; |
| 4679 | (void) WriteBlobMSBULong(alpha_image,0x00000000L); |
| 4680 | PNGType(data,mng_IEND); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 4681 | LogPNGChunk(logging,mng_IEND,0L); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4682 | (void) WriteBlob(alpha_image,4,data); |
| 4683 | (void) WriteBlobMSBULong(alpha_image,crc32(0,data,4)); |
| 4684 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4685 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4686 | (void) CloseBlob(alpha_image); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4687 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4688 | if (logging != MagickFalse) |
| 4689 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 4690 | " Reading alpha from alpha_blob."); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4691 | |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 4692 | (void) FormatLocaleString(alpha_image_info->filename,MagickPathExtent, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4693 | "%s",alpha_image->filename); |
| 4694 | |
| 4695 | jng_image=ReadImage(alpha_image_info,exception); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4696 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4697 | if (jng_image != (Image *) NULL) |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4698 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4699 | { |
| 4700 | s=GetVirtualPixels(jng_image,0,y,image->columns,1, |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 4701 | exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4702 | q=GetAuthenticPixels(image,0,y,image->columns,1,exception); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4703 | |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 4704 | if (image->alpha_trait != UndefinedPixelTrait) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 4705 | for (x=(ssize_t) image->columns; x != 0; x--) |
| 4706 | { |
| 4707 | SetPixelAlpha(image,GetPixelRed(jng_image,s),q); |
| 4708 | q+=GetPixelChannels(image); |
| 4709 | s+=GetPixelChannels(jng_image); |
| 4710 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4711 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4712 | else |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 4713 | for (x=(ssize_t) image->columns; x != 0; x--) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4714 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 4715 | SetPixelAlpha(image,GetPixelRed(jng_image,s),q); |
| 4716 | if (GetPixelAlpha(image,q) != OpaqueAlpha) |
cristy | 8a46d82 | 2012-08-28 23:32:39 +0000 | [diff] [blame] | 4717 | image->alpha_trait=BlendPixelTrait; |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 4718 | q+=GetPixelChannels(image); |
| 4719 | s+=GetPixelChannels(jng_image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4720 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4721 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4722 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 4723 | break; |
| 4724 | } |
| 4725 | (void) RelinquishUniqueFileResource(alpha_image->filename); |
| 4726 | alpha_image=DestroyImage(alpha_image); |
| 4727 | alpha_image_info=DestroyImageInfo(alpha_image_info); |
| 4728 | if (jng_image != (Image *) NULL) |
| 4729 | jng_image=DestroyImage(jng_image); |
| 4730 | } |
| 4731 | } |
| 4732 | |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4733 | /* Read the JNG image. */ |
| 4734 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4735 | if (mng_info->mng_type == 0) |
| 4736 | { |
| 4737 | mng_info->mng_width=jng_width; |
| 4738 | mng_info->mng_height=jng_height; |
| 4739 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4740 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4741 | if (image->page.width == 0 && image->page.height == 0) |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4742 | { |
| 4743 | image->page.width=jng_width; |
| 4744 | image->page.height=jng_height; |
| 4745 | } |
| 4746 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4747 | if (image->page.x == 0 && image->page.y == 0) |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4748 | { |
| 4749 | image->page.x=mng_info->x_off[mng_info->object_id]; |
| 4750 | image->page.y=mng_info->y_off[mng_info->object_id]; |
| 4751 | } |
| 4752 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4753 | else |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4754 | { |
| 4755 | image->page.y=mng_info->y_off[mng_info->object_id]; |
| 4756 | } |
| 4757 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4758 | mng_info->image_found++; |
| 4759 | status=SetImageProgress(image,LoadImagesTag,2*TellBlob(image), |
| 4760 | 2*GetBlobSize(image)); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4761 | |
glennrp | 44c2297 | 2015-01-25 03:10:16 +0000 | [diff] [blame] | 4762 | if (status == MagickFalse) |
| 4763 | return((Image *) NULL); |
| 4764 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4765 | if (logging != MagickFalse) |
| 4766 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 4767 | " exit ReadOneJNGImage()"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4768 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4769 | return(image); |
| 4770 | } |
| 4771 | |
| 4772 | /* |
| 4773 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 4774 | % % |
| 4775 | % % |
| 4776 | % % |
| 4777 | % R e a d J N G I m a g e % |
| 4778 | % % |
| 4779 | % % |
| 4780 | % % |
| 4781 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 4782 | % |
| 4783 | % ReadJNGImage() reads a JPEG Network Graphics (JNG) image file |
| 4784 | % (including the 8-byte signature) and returns it. It allocates the memory |
| 4785 | % necessary for the new Image structure and returns a pointer to the new |
| 4786 | % image. |
| 4787 | % |
| 4788 | % JNG support written by Glenn Randers-Pehrson, glennrp@image... |
| 4789 | % |
| 4790 | % The format of the ReadJNGImage method is: |
| 4791 | % |
| 4792 | % Image *ReadJNGImage(const ImageInfo *image_info, ExceptionInfo |
| 4793 | % *exception) |
| 4794 | % |
| 4795 | % A description of each parameter follows: |
| 4796 | % |
| 4797 | % o image_info: the image info. |
| 4798 | % |
| 4799 | % o exception: return any errors or warnings in this structure. |
| 4800 | % |
| 4801 | */ |
| 4802 | |
| 4803 | static Image *ReadJNGImage(const ImageInfo *image_info,ExceptionInfo *exception) |
| 4804 | { |
| 4805 | Image |
glennrp | 7ee973a | 2014-11-20 18:30:54 +0000 | [diff] [blame] | 4806 | *image; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4807 | |
| 4808 | MagickBooleanType |
glennrp | 21f0e62 | 2011-01-07 16:20:57 +0000 | [diff] [blame] | 4809 | have_mng_structure, |
| 4810 | logging, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4811 | status; |
| 4812 | |
| 4813 | MngInfo |
| 4814 | *mng_info; |
| 4815 | |
| 4816 | char |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 4817 | magic_number[MagickPathExtent]; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4818 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4819 | size_t |
| 4820 | count; |
| 4821 | |
| 4822 | /* |
| 4823 | Open image file. |
| 4824 | */ |
| 4825 | assert(image_info != (const ImageInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 4826 | assert(image_info->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4827 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image_info->filename); |
| 4828 | assert(exception != (ExceptionInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 4829 | assert(exception->signature == MagickCoreSignature); |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 4830 | logging=LogMagickEvent(CoderEvent,GetMagickModule(),"Enter ReadJNGImage()"); |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 4831 | image=AcquireImage(image_info,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4832 | mng_info=(MngInfo *) NULL; |
| 4833 | status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4834 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4835 | if (status == MagickFalse) |
| 4836 | return((Image *) NULL); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4837 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4838 | if (LocaleCompare(image_info->magick,"JNG") != 0) |
| 4839 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4840 | |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4841 | /* Verify JNG signature. */ |
| 4842 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4843 | count=(size_t) ReadBlob(image,8,(unsigned char *) magic_number); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4844 | |
glennrp | 3b8763e | 2011-02-21 12:08:18 +0000 | [diff] [blame] | 4845 | if (count < 8 || memcmp(magic_number,"\213JNG\r\n\032\n",8) != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4846 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4847 | |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4848 | /* Allocate a MngInfo structure. */ |
| 4849 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4850 | have_mng_structure=MagickFalse; |
cristy | 73bd4a5 | 2010-10-05 11:24:23 +0000 | [diff] [blame] | 4851 | mng_info=(MngInfo *) AcquireMagickMemory(sizeof(*mng_info)); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4852 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4853 | if (mng_info == (MngInfo *) NULL) |
| 4854 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4855 | |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4856 | /* Initialize members of the MngInfo structure. */ |
| 4857 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4858 | (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); |
| 4859 | have_mng_structure=MagickTrue; |
| 4860 | |
| 4861 | mng_info->image=image; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4862 | image=ReadOneJNGImage(mng_info,image_info,exception); |
| 4863 | MngInfoFreeStruct(mng_info,&have_mng_structure); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4864 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4865 | if (image == (Image *) NULL) |
| 4866 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4867 | if (logging != MagickFalse) |
| 4868 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 4869 | "exit ReadJNGImage() with error"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4870 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4871 | return((Image *) NULL); |
| 4872 | } |
| 4873 | (void) CloseBlob(image); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4874 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4875 | if (image->columns == 0 || image->rows == 0) |
| 4876 | { |
| 4877 | if (logging != MagickFalse) |
| 4878 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 4879 | "exit ReadJNGImage() with error"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4880 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4881 | ThrowReaderException(CorruptImageError,"CorruptImage"); |
| 4882 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4883 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4884 | if (logging != MagickFalse) |
| 4885 | (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadJNGImage()"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 4886 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4887 | return(image); |
| 4888 | } |
| 4889 | #endif |
| 4890 | |
| 4891 | static Image *ReadMNGImage(const ImageInfo *image_info,ExceptionInfo *exception) |
| 4892 | { |
| 4893 | char |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 4894 | page_geometry[MagickPathExtent]; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4895 | |
| 4896 | Image |
glennrp | 889a928 | 2015-04-09 16:51:44 +0000 | [diff] [blame] | 4897 | *image; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4898 | |
cristy | 4383ec8 | 2011-01-05 15:42:32 +0000 | [diff] [blame] | 4899 | MagickBooleanType |
glennrp | 21f0e62 | 2011-01-07 16:20:57 +0000 | [diff] [blame] | 4900 | logging, |
| 4901 | have_mng_structure; |
cristy | 4383ec8 | 2011-01-05 15:42:32 +0000 | [diff] [blame] | 4902 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4903 | volatile int |
| 4904 | first_mng_object, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4905 | object_id, |
| 4906 | term_chunk_found, |
| 4907 | skip_to_iend; |
| 4908 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4909 | volatile ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4910 | image_count=0; |
| 4911 | |
| 4912 | MagickBooleanType |
| 4913 | status; |
| 4914 | |
| 4915 | MagickOffsetType |
| 4916 | offset; |
| 4917 | |
| 4918 | MngInfo |
| 4919 | *mng_info; |
| 4920 | |
| 4921 | MngBox |
| 4922 | default_fb, |
| 4923 | fb, |
| 4924 | previous_fb; |
| 4925 | |
| 4926 | #if defined(MNG_INSERT_LAYERS) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 4927 | PixelInfo |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4928 | mng_background_color; |
| 4929 | #endif |
| 4930 | |
| 4931 | register unsigned char |
| 4932 | *p; |
| 4933 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4934 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4935 | i; |
| 4936 | |
| 4937 | size_t |
| 4938 | count; |
| 4939 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4940 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4941 | loop_level; |
| 4942 | |
| 4943 | volatile short |
| 4944 | skipping_loop; |
| 4945 | |
| 4946 | #if defined(MNG_INSERT_LAYERS) |
| 4947 | unsigned int |
| 4948 | mandatory_back=0; |
| 4949 | #endif |
| 4950 | |
| 4951 | volatile unsigned int |
| 4952 | #ifdef MNG_OBJECT_BUFFERS |
| 4953 | mng_background_object=0, |
| 4954 | #endif |
| 4955 | mng_type=0; /* 0: PNG or JNG; 1: MNG; 2: MNG-LC; 3: MNG-VLC */ |
| 4956 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4957 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4958 | default_frame_timeout, |
| 4959 | frame_timeout, |
| 4960 | #if defined(MNG_INSERT_LAYERS) |
| 4961 | image_height, |
| 4962 | image_width, |
| 4963 | #endif |
| 4964 | length; |
| 4965 | |
glennrp | 38ea083 | 2010-06-02 18:50:28 +0000 | [diff] [blame] | 4966 | /* These delays are all measured in image ticks_per_second, |
| 4967 | * not in MNG ticks_per_second |
| 4968 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4969 | volatile size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4970 | default_frame_delay, |
| 4971 | final_delay, |
| 4972 | final_image_delay, |
| 4973 | frame_delay, |
| 4974 | #if defined(MNG_INSERT_LAYERS) |
| 4975 | insert_layers, |
| 4976 | #endif |
| 4977 | mng_iterations=1, |
| 4978 | simplicity=0, |
| 4979 | subframe_height=0, |
| 4980 | subframe_width=0; |
| 4981 | |
| 4982 | previous_fb.top=0; |
| 4983 | previous_fb.bottom=0; |
| 4984 | previous_fb.left=0; |
| 4985 | previous_fb.right=0; |
| 4986 | default_fb.top=0; |
| 4987 | default_fb.bottom=0; |
| 4988 | default_fb.left=0; |
| 4989 | default_fb.right=0; |
| 4990 | |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 4991 | /* Open image file. */ |
| 4992 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4993 | assert(image_info != (const ImageInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 4994 | assert(image_info->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4995 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image_info->filename); |
| 4996 | assert(exception != (ExceptionInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 4997 | assert(exception->signature == MagickCoreSignature); |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 4998 | logging=LogMagickEvent(CoderEvent,GetMagickModule(),"Enter ReadMNGImage()"); |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 4999 | image=AcquireImage(image_info,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5000 | mng_info=(MngInfo *) NULL; |
| 5001 | status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5002 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5003 | if (status == MagickFalse) |
| 5004 | return((Image *) NULL); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5005 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5006 | first_mng_object=MagickFalse; |
| 5007 | skipping_loop=(-1); |
| 5008 | have_mng_structure=MagickFalse; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5009 | |
| 5010 | /* Allocate a MngInfo structure. */ |
| 5011 | |
cristy | 73bd4a5 | 2010-10-05 11:24:23 +0000 | [diff] [blame] | 5012 | mng_info=(MngInfo *) AcquireMagickMemory(sizeof(MngInfo)); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5013 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5014 | if (mng_info == (MngInfo *) NULL) |
| 5015 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5016 | |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5017 | /* Initialize members of the MngInfo structure. */ |
| 5018 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5019 | (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); |
| 5020 | mng_info->image=image; |
| 5021 | have_mng_structure=MagickTrue; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5022 | |
| 5023 | if (LocaleCompare(image_info->magick,"MNG") == 0) |
| 5024 | { |
| 5025 | char |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 5026 | magic_number[MagickPathExtent]; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5027 | |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5028 | /* Verify MNG signature. */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5029 | count=(size_t) ReadBlob(image,8,(unsigned char *) magic_number); |
| 5030 | if (memcmp(magic_number,"\212MNG\r\n\032\n",8) != 0) |
| 5031 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5032 | |
| 5033 | /* Initialize some nonzero members of the MngInfo structure. */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5034 | for (i=0; i < MNG_MAX_OBJECTS; i++) |
| 5035 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5036 | mng_info->object_clip[i].right=(ssize_t) PNG_UINT_31_MAX; |
| 5037 | mng_info->object_clip[i].bottom=(ssize_t) PNG_UINT_31_MAX; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5038 | } |
| 5039 | mng_info->exists[0]=MagickTrue; |
| 5040 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5041 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5042 | first_mng_object=MagickTrue; |
| 5043 | mng_type=0; |
| 5044 | #if defined(MNG_INSERT_LAYERS) |
| 5045 | insert_layers=MagickFalse; /* should be False when converting or mogrifying */ |
| 5046 | #endif |
| 5047 | default_frame_delay=0; |
| 5048 | default_frame_timeout=0; |
| 5049 | frame_delay=0; |
| 5050 | final_delay=1; |
| 5051 | mng_info->ticks_per_second=1UL*image->ticks_per_second; |
| 5052 | object_id=0; |
| 5053 | skip_to_iend=MagickFalse; |
| 5054 | term_chunk_found=MagickFalse; |
| 5055 | mng_info->framing_mode=1; |
| 5056 | #if defined(MNG_INSERT_LAYERS) |
| 5057 | mandatory_back=MagickFalse; |
| 5058 | #endif |
| 5059 | #if defined(MNG_INSERT_LAYERS) |
| 5060 | mng_background_color=image->background_color; |
| 5061 | #endif |
| 5062 | default_fb=mng_info->frame; |
| 5063 | previous_fb=mng_info->frame; |
| 5064 | do |
| 5065 | { |
| 5066 | char |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 5067 | type[MagickPathExtent]; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5068 | |
| 5069 | if (LocaleCompare(image_info->magick,"MNG") == 0) |
| 5070 | { |
| 5071 | unsigned char |
| 5072 | *chunk; |
| 5073 | |
| 5074 | /* |
| 5075 | Read a new chunk. |
| 5076 | */ |
| 5077 | type[0]='\0'; |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 5078 | (void) ConcatenateMagickString(type,"errr",MagickPathExtent); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5079 | length=ReadBlobMSBLong(image); |
| 5080 | count=(size_t) ReadBlob(image,4,(unsigned char *) type); |
| 5081 | |
| 5082 | if (logging != MagickFalse) |
| 5083 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 5084 | " Reading MNG chunk type %c%c%c%c, length: %.20g", |
| 5085 | type[0],type[1],type[2],type[3],(double) length); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5086 | |
| 5087 | if (length > PNG_UINT_31_MAX) |
glennrp | 44c2297 | 2015-01-25 03:10:16 +0000 | [diff] [blame] | 5088 | { |
| 5089 | status=MagickFalse; |
| 5090 | break; |
| 5091 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5092 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5093 | if (count == 0) |
| 5094 | ThrowReaderException(CorruptImageError,"CorruptImage"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5095 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5096 | p=NULL; |
| 5097 | chunk=(unsigned char *) NULL; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5098 | |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 5099 | if (length != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5100 | { |
| 5101 | chunk=(unsigned char *) AcquireQuantumMemory(length,sizeof(*chunk)); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5102 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5103 | if (chunk == (unsigned char *) NULL) |
| 5104 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5105 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5106 | for (i=0; i < (ssize_t) length; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5107 | chunk[i]=(unsigned char) ReadBlobByte(image); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5108 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5109 | p=chunk; |
| 5110 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5111 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5112 | (void) ReadBlobMSBLong(image); /* read crc word */ |
| 5113 | |
| 5114 | #if !defined(JNG_SUPPORTED) |
| 5115 | if (memcmp(type,mng_JHDR,4) == 0) |
| 5116 | { |
| 5117 | skip_to_iend=MagickTrue; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5118 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5119 | if (mng_info->jhdr_warning == 0) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 5120 | (void) ThrowMagickException(exception,GetMagickModule(), |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5121 | CoderError,"JNGCompressNotSupported","`%s'",image->filename); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5122 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5123 | mng_info->jhdr_warning++; |
| 5124 | } |
| 5125 | #endif |
| 5126 | if (memcmp(type,mng_DHDR,4) == 0) |
| 5127 | { |
| 5128 | skip_to_iend=MagickTrue; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5129 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5130 | if (mng_info->dhdr_warning == 0) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 5131 | (void) ThrowMagickException(exception,GetMagickModule(), |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5132 | CoderError,"DeltaPNGNotSupported","`%s'",image->filename); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5133 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5134 | mng_info->dhdr_warning++; |
| 5135 | } |
| 5136 | if (memcmp(type,mng_MEND,4) == 0) |
| 5137 | break; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5138 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5139 | if (skip_to_iend) |
| 5140 | { |
| 5141 | if (memcmp(type,mng_IEND,4) == 0) |
| 5142 | skip_to_iend=MagickFalse; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5143 | |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 5144 | if (length != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5145 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5146 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5147 | if (logging != MagickFalse) |
| 5148 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 5149 | " Skip to IEND."); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5150 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5151 | continue; |
| 5152 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5153 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5154 | if (memcmp(type,mng_MHDR,4) == 0) |
| 5155 | { |
Cristy | f8d9cb8 | 2015-09-11 11:51:22 -0400 | [diff] [blame] | 5156 | if (length != 28) |
| 5157 | { |
| 5158 | if (chunk) |
| 5159 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
| 5160 | ThrowReaderException(CorruptImageError,"CorruptImage"); |
| 5161 | } |
| 5162 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5163 | mng_info->mng_width=(size_t) ((p[0] << 24) | (p[1] << 16) | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5164 | (p[2] << 8) | p[3]); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5165 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5166 | mng_info->mng_height=(size_t) ((p[4] << 24) | (p[5] << 16) | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5167 | (p[6] << 8) | p[7]); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5168 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5169 | if (logging != MagickFalse) |
| 5170 | { |
| 5171 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 5172 | " MNG width: %.20g",(double) mng_info->mng_width); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5173 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 5174 | " MNG height: %.20g",(double) mng_info->mng_height); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5175 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5176 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5177 | p+=8; |
cristy | 8182b07 | 2010-05-30 20:10:53 +0000 | [diff] [blame] | 5178 | mng_info->ticks_per_second=(size_t) mng_get_long(p); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5179 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5180 | if (mng_info->ticks_per_second == 0) |
| 5181 | default_frame_delay=0; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5182 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5183 | else |
| 5184 | default_frame_delay=1UL*image->ticks_per_second/ |
| 5185 | mng_info->ticks_per_second; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5186 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5187 | frame_delay=default_frame_delay; |
| 5188 | simplicity=0; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5189 | |
Cristy | f8d9cb8 | 2015-09-11 11:51:22 -0400 | [diff] [blame] | 5190 | p+=16; |
| 5191 | simplicity=(size_t) mng_get_long(p); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5192 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5193 | mng_type=1; /* Full MNG */ |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5194 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5195 | if ((simplicity != 0) && ((simplicity | 11) == 11)) |
| 5196 | mng_type=2; /* LC */ |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5197 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5198 | if ((simplicity != 0) && ((simplicity | 9) == 9)) |
| 5199 | mng_type=3; /* VLC */ |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5200 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5201 | #if defined(MNG_INSERT_LAYERS) |
| 5202 | if (mng_type != 3) |
| 5203 | insert_layers=MagickTrue; |
| 5204 | #endif |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 5205 | if (GetAuthenticPixelQueue(image) != (Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5206 | { |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5207 | /* Allocate next image structure. */ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 5208 | AcquireNextImage(image_info,image,exception); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5209 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5210 | if (GetNextImageInList(image) == (Image *) NULL) |
| 5211 | return((Image *) NULL); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5212 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5213 | image=SyncNextImageInList(image); |
| 5214 | mng_info->image=image; |
| 5215 | } |
| 5216 | |
| 5217 | if ((mng_info->mng_width > 65535L) || |
| 5218 | (mng_info->mng_height > 65535L)) |
| 5219 | ThrowReaderException(ImageError,"WidthOrHeightExceedsLimit"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5220 | |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 5221 | (void) FormatLocaleString(page_geometry,MagickPathExtent, |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 5222 | "%.20gx%.20g+0+0",(double) mng_info->mng_width,(double) |
cristy | f2faecf | 2010-05-28 19:19:36 +0000 | [diff] [blame] | 5223 | mng_info->mng_height); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5224 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5225 | mng_info->frame.left=0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5226 | mng_info->frame.right=(ssize_t) mng_info->mng_width; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5227 | mng_info->frame.top=0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5228 | mng_info->frame.bottom=(ssize_t) mng_info->mng_height; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5229 | mng_info->clip=default_fb=previous_fb=mng_info->frame; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5230 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5231 | for (i=0; i < MNG_MAX_OBJECTS; i++) |
| 5232 | mng_info->object_clip[i]=mng_info->frame; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5233 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5234 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
| 5235 | continue; |
| 5236 | } |
| 5237 | |
| 5238 | if (memcmp(type,mng_TERM,4) == 0) |
| 5239 | { |
| 5240 | int |
| 5241 | repeat=0; |
| 5242 | |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 5243 | if (length != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5244 | repeat=p[0]; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5245 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5246 | if (repeat == 3) |
| 5247 | { |
cristy | 8182b07 | 2010-05-30 20:10:53 +0000 | [diff] [blame] | 5248 | final_delay=(png_uint_32) mng_get_long(&p[2]); |
| 5249 | mng_iterations=(png_uint_32) mng_get_long(&p[6]); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5250 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5251 | if (mng_iterations == PNG_UINT_31_MAX) |
| 5252 | mng_iterations=0; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5253 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5254 | image->iterations=mng_iterations; |
| 5255 | term_chunk_found=MagickTrue; |
| 5256 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5257 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5258 | if (logging != MagickFalse) |
| 5259 | { |
| 5260 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 280283d | 2014-08-01 15:02:04 +0000 | [diff] [blame] | 5261 | " repeat=%d, final_delay=%.20g, iterations=%.20g", |
| 5262 | repeat,(double) final_delay, (double) image->iterations); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5263 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5264 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5265 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
| 5266 | continue; |
| 5267 | } |
| 5268 | if (memcmp(type,mng_DEFI,4) == 0) |
| 5269 | { |
| 5270 | if (mng_type == 3) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 5271 | (void) ThrowMagickException(exception,GetMagickModule(), |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5272 | CoderError,"DEFI chunk found in MNG-VLC datastream","`%s'", |
| 5273 | image->filename); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5274 | |
Cristy | f8d9cb8 | 2015-09-11 11:51:22 -0400 | [diff] [blame] | 5275 | if (length < 2) |
| 5276 | { |
| 5277 | if (chunk) |
| 5278 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
| 5279 | ThrowReaderException(CorruptImageError,"CorruptImage"); |
| 5280 | } |
| 5281 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5282 | object_id=(p[0] << 8) | p[1]; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5283 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5284 | if (mng_type == 2 && object_id != 0) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 5285 | (void) ThrowMagickException(exception,GetMagickModule(), |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5286 | CoderError,"Nonzero object_id in MNG-LC datastream","`%s'", |
| 5287 | image->filename); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5288 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5289 | if (object_id > MNG_MAX_OBJECTS) |
| 5290 | { |
| 5291 | /* |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 5292 | Instead of using a warning we should allocate a larger |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5293 | MngInfo structure and continue. |
| 5294 | */ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 5295 | (void) ThrowMagickException(exception,GetMagickModule(), |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5296 | CoderError,"object id too large","`%s'",image->filename); |
| 5297 | object_id=MNG_MAX_OBJECTS; |
| 5298 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5299 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5300 | if (mng_info->exists[object_id]) |
| 5301 | if (mng_info->frozen[object_id]) |
| 5302 | { |
| 5303 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 5304 | (void) ThrowMagickException(exception, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5305 | GetMagickModule(),CoderError, |
| 5306 | "DEFI cannot redefine a frozen MNG object","`%s'", |
| 5307 | image->filename); |
| 5308 | continue; |
| 5309 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5310 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5311 | mng_info->exists[object_id]=MagickTrue; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5312 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5313 | if (length > 2) |
| 5314 | mng_info->invisible[object_id]=p[2]; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5315 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5316 | /* |
| 5317 | Extract object offset info. |
| 5318 | */ |
| 5319 | if (length > 11) |
| 5320 | { |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5321 | mng_info->x_off[object_id]=(ssize_t) ((p[4] << 24) | |
| 5322 | (p[5] << 16) | (p[6] << 8) | p[7]); |
| 5323 | |
| 5324 | mng_info->y_off[object_id]=(ssize_t) ((p[8] << 24) | |
| 5325 | (p[9] << 16) | (p[10] << 8) | p[11]); |
| 5326 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5327 | if (logging != MagickFalse) |
| 5328 | { |
| 5329 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 280283d | 2014-08-01 15:02:04 +0000 | [diff] [blame] | 5330 | " x_off[%d]: %.20g, y_off[%d]: %.20g", |
| 5331 | object_id,(double) mng_info->x_off[object_id], |
| 5332 | object_id,(double) mng_info->y_off[object_id]); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5333 | } |
| 5334 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5335 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5336 | /* |
| 5337 | Extract object clipping info. |
| 5338 | */ |
| 5339 | if (length > 27) |
| 5340 | mng_info->object_clip[object_id]=mng_read_box(mng_info->frame,0, |
| 5341 | &p[12]); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5342 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5343 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
| 5344 | continue; |
| 5345 | } |
| 5346 | if (memcmp(type,mng_bKGD,4) == 0) |
| 5347 | { |
| 5348 | mng_info->have_global_bkgd=MagickFalse; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5349 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5350 | if (length > 5) |
| 5351 | { |
| 5352 | mng_info->mng_global_bkgd.red= |
| 5353 | ScaleShortToQuantum((unsigned short) ((p[0] << 8) | p[1])); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5354 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5355 | mng_info->mng_global_bkgd.green= |
| 5356 | ScaleShortToQuantum((unsigned short) ((p[2] << 8) | p[3])); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5357 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5358 | mng_info->mng_global_bkgd.blue= |
| 5359 | ScaleShortToQuantum((unsigned short) ((p[4] << 8) | p[5])); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5360 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5361 | mng_info->have_global_bkgd=MagickTrue; |
| 5362 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5363 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5364 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
| 5365 | continue; |
| 5366 | } |
| 5367 | if (memcmp(type,mng_BACK,4) == 0) |
| 5368 | { |
| 5369 | #if defined(MNG_INSERT_LAYERS) |
| 5370 | if (length > 6) |
| 5371 | mandatory_back=p[6]; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5372 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5373 | else |
| 5374 | mandatory_back=0; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5375 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5376 | if (mandatory_back && length > 5) |
| 5377 | { |
| 5378 | mng_background_color.red= |
| 5379 | ScaleShortToQuantum((unsigned short) ((p[0] << 8) | p[1])); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5380 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5381 | mng_background_color.green= |
| 5382 | ScaleShortToQuantum((unsigned short) ((p[2] << 8) | p[3])); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5383 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5384 | mng_background_color.blue= |
| 5385 | ScaleShortToQuantum((unsigned short) ((p[4] << 8) | p[5])); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5386 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 5387 | mng_background_color.alpha=OpaqueAlpha; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5388 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5389 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5390 | #ifdef MNG_OBJECT_BUFFERS |
| 5391 | if (length > 8) |
| 5392 | mng_background_object=(p[7] << 8) | p[8]; |
| 5393 | #endif |
| 5394 | #endif |
| 5395 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
| 5396 | continue; |
| 5397 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5398 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5399 | if (memcmp(type,mng_PLTE,4) == 0) |
| 5400 | { |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5401 | /* Read global PLTE. */ |
| 5402 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5403 | if (length && (length < 769)) |
| 5404 | { |
| 5405 | if (mng_info->global_plte == (png_colorp) NULL) |
| 5406 | mng_info->global_plte=(png_colorp) AcquireQuantumMemory(256, |
| 5407 | sizeof(*mng_info->global_plte)); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5408 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5409 | for (i=0; i < (ssize_t) (length/3); i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5410 | { |
| 5411 | mng_info->global_plte[i].red=p[3*i]; |
| 5412 | mng_info->global_plte[i].green=p[3*i+1]; |
| 5413 | mng_info->global_plte[i].blue=p[3*i+2]; |
| 5414 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5415 | |
cristy | 35ef824 | 2010-06-03 16:24:13 +0000 | [diff] [blame] | 5416 | mng_info->global_plte_length=(unsigned int) (length/3); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5417 | } |
| 5418 | #ifdef MNG_LOOSE |
| 5419 | for ( ; i < 256; i++) |
| 5420 | { |
| 5421 | mng_info->global_plte[i].red=i; |
| 5422 | mng_info->global_plte[i].green=i; |
| 5423 | mng_info->global_plte[i].blue=i; |
| 5424 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5425 | |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 5426 | if (length != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5427 | mng_info->global_plte_length=256; |
| 5428 | #endif |
| 5429 | else |
| 5430 | mng_info->global_plte_length=0; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5431 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5432 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
| 5433 | continue; |
| 5434 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5435 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5436 | if (memcmp(type,mng_tRNS,4) == 0) |
| 5437 | { |
| 5438 | /* read global tRNS */ |
| 5439 | |
Cristy | f8d9cb8 | 2015-09-11 11:51:22 -0400 | [diff] [blame] | 5440 | if (length > 0 && length < 257) |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5441 | for (i=0; i < (ssize_t) length; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5442 | mng_info->global_trns[i]=p[i]; |
| 5443 | |
| 5444 | #ifdef MNG_LOOSE |
| 5445 | for ( ; i < 256; i++) |
| 5446 | mng_info->global_trns[i]=255; |
| 5447 | #endif |
cristy | 12560f3 | 2010-06-03 16:51:08 +0000 | [diff] [blame] | 5448 | mng_info->global_trns_length=(unsigned int) length; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5449 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
| 5450 | continue; |
| 5451 | } |
| 5452 | if (memcmp(type,mng_gAMA,4) == 0) |
| 5453 | { |
| 5454 | if (length == 4) |
| 5455 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5456 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5457 | igamma; |
| 5458 | |
cristy | 8182b07 | 2010-05-30 20:10:53 +0000 | [diff] [blame] | 5459 | igamma=mng_get_long(p); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5460 | mng_info->global_gamma=((float) igamma)*0.00001; |
| 5461 | mng_info->have_global_gama=MagickTrue; |
| 5462 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5463 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5464 | else |
| 5465 | mng_info->have_global_gama=MagickFalse; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5466 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5467 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
| 5468 | continue; |
| 5469 | } |
| 5470 | |
| 5471 | if (memcmp(type,mng_cHRM,4) == 0) |
| 5472 | { |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5473 | /* Read global cHRM */ |
| 5474 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5475 | if (length == 32) |
| 5476 | { |
cristy | 8182b07 | 2010-05-30 20:10:53 +0000 | [diff] [blame] | 5477 | mng_info->global_chrm.white_point.x=0.00001*mng_get_long(p); |
| 5478 | mng_info->global_chrm.white_point.y=0.00001*mng_get_long(&p[4]); |
| 5479 | mng_info->global_chrm.red_primary.x=0.00001*mng_get_long(&p[8]); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5480 | mng_info->global_chrm.red_primary.y=0.00001* |
cristy | 8182b07 | 2010-05-30 20:10:53 +0000 | [diff] [blame] | 5481 | mng_get_long(&p[12]); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5482 | mng_info->global_chrm.green_primary.x=0.00001* |
cristy | 8182b07 | 2010-05-30 20:10:53 +0000 | [diff] [blame] | 5483 | mng_get_long(&p[16]); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5484 | mng_info->global_chrm.green_primary.y=0.00001* |
cristy | 8182b07 | 2010-05-30 20:10:53 +0000 | [diff] [blame] | 5485 | mng_get_long(&p[20]); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5486 | mng_info->global_chrm.blue_primary.x=0.00001* |
cristy | 8182b07 | 2010-05-30 20:10:53 +0000 | [diff] [blame] | 5487 | mng_get_long(&p[24]); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5488 | mng_info->global_chrm.blue_primary.y=0.00001* |
cristy | 8182b07 | 2010-05-30 20:10:53 +0000 | [diff] [blame] | 5489 | mng_get_long(&p[28]); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5490 | mng_info->have_global_chrm=MagickTrue; |
| 5491 | } |
| 5492 | else |
| 5493 | mng_info->have_global_chrm=MagickFalse; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5494 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5495 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
| 5496 | continue; |
| 5497 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5498 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5499 | if (memcmp(type,mng_sRGB,4) == 0) |
| 5500 | { |
| 5501 | /* |
| 5502 | Read global sRGB. |
| 5503 | */ |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 5504 | if (length != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5505 | { |
glennrp | e610a07 | 2010-08-05 17:08:46 +0000 | [diff] [blame] | 5506 | mng_info->global_srgb_intent= |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 5507 | Magick_RenderingIntent_from_PNG_RenderingIntent(p[0]); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5508 | mng_info->have_global_srgb=MagickTrue; |
| 5509 | } |
| 5510 | else |
| 5511 | mng_info->have_global_srgb=MagickFalse; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5512 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5513 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
| 5514 | continue; |
| 5515 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5516 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5517 | if (memcmp(type,mng_iCCP,4) == 0) |
| 5518 | { |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 5519 | /* To do: */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5520 | |
| 5521 | /* |
| 5522 | Read global iCCP. |
| 5523 | */ |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 5524 | if (length != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5525 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5526 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5527 | continue; |
| 5528 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5529 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5530 | if (memcmp(type,mng_FRAM,4) == 0) |
| 5531 | { |
| 5532 | if (mng_type == 3) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 5533 | (void) ThrowMagickException(exception,GetMagickModule(), |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5534 | CoderError,"FRAM chunk found in MNG-VLC datastream","`%s'", |
| 5535 | image->filename); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5536 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5537 | if ((mng_info->framing_mode == 2) || (mng_info->framing_mode == 4)) |
| 5538 | image->delay=frame_delay; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5539 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5540 | frame_delay=default_frame_delay; |
| 5541 | frame_timeout=default_frame_timeout; |
| 5542 | fb=default_fb; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5543 | |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 5544 | if (length != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5545 | if (p[0]) |
| 5546 | mng_info->framing_mode=p[0]; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5547 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5548 | if (logging != MagickFalse) |
| 5549 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 5550 | " Framing_mode=%d",mng_info->framing_mode); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5551 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5552 | if (length > 6) |
| 5553 | { |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5554 | /* Note the delay and frame clipping boundaries. */ |
| 5555 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5556 | p++; /* framing mode */ |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5557 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5558 | while (*p && ((p-chunk) < (ssize_t) length)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5559 | p++; /* frame name */ |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5560 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5561 | p++; /* frame name terminator */ |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5562 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5563 | if ((p-chunk) < (ssize_t) (length-4)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5564 | { |
| 5565 | int |
| 5566 | change_delay, |
| 5567 | change_timeout, |
| 5568 | change_clipping; |
| 5569 | |
| 5570 | change_delay=(*p++); |
| 5571 | change_timeout=(*p++); |
| 5572 | change_clipping=(*p++); |
| 5573 | p++; /* change_sync */ |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5574 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5575 | if (change_delay) |
| 5576 | { |
cristy | 8182b07 | 2010-05-30 20:10:53 +0000 | [diff] [blame] | 5577 | frame_delay=1UL*image->ticks_per_second* |
| 5578 | mng_get_long(p); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5579 | |
cristy | 8182b07 | 2010-05-30 20:10:53 +0000 | [diff] [blame] | 5580 | if (mng_info->ticks_per_second != 0) |
| 5581 | frame_delay/=mng_info->ticks_per_second; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5582 | |
glennrp | bb010dd | 2010-06-01 13:07:15 +0000 | [diff] [blame] | 5583 | else |
| 5584 | frame_delay=PNG_UINT_31_MAX; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5585 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5586 | if (change_delay == 2) |
| 5587 | default_frame_delay=frame_delay; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5588 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5589 | p+=4; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5590 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5591 | if (logging != MagickFalse) |
| 5592 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 5593 | " Framing_delay=%.20g",(double) frame_delay); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5594 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5595 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5596 | if (change_timeout) |
| 5597 | { |
glennrp | bb010dd | 2010-06-01 13:07:15 +0000 | [diff] [blame] | 5598 | frame_timeout=1UL*image->ticks_per_second* |
| 5599 | mng_get_long(p); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5600 | |
glennrp | bb010dd | 2010-06-01 13:07:15 +0000 | [diff] [blame] | 5601 | if (mng_info->ticks_per_second != 0) |
| 5602 | frame_timeout/=mng_info->ticks_per_second; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5603 | |
glennrp | bb010dd | 2010-06-01 13:07:15 +0000 | [diff] [blame] | 5604 | else |
| 5605 | frame_timeout=PNG_UINT_31_MAX; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5606 | |
glennrp | 3a89fa4 | 2015-01-22 02:48:04 +0000 | [diff] [blame] | 5607 | if (change_timeout == 2) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5608 | default_frame_timeout=frame_timeout; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5609 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5610 | p+=4; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5611 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5612 | if (logging != MagickFalse) |
| 5613 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 5614 | " Framing_timeout=%.20g",(double) frame_timeout); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5615 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5616 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5617 | if (change_clipping) |
| 5618 | { |
| 5619 | fb=mng_read_box(previous_fb,(char) p[0],&p[1]); |
| 5620 | p+=17; |
| 5621 | previous_fb=fb; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5622 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5623 | if (logging != MagickFalse) |
| 5624 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5625 | " Frame_clip: L=%.20g R=%.20g T=%.20g B=%.20g", |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 5626 | (double) fb.left,(double) fb.right,(double) fb.top, |
| 5627 | (double) fb.bottom); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5628 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5629 | if (change_clipping == 2) |
| 5630 | default_fb=fb; |
| 5631 | } |
| 5632 | } |
| 5633 | } |
| 5634 | mng_info->clip=fb; |
| 5635 | mng_info->clip=mng_minimum_box(fb,mng_info->frame); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5636 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5637 | subframe_width=(size_t) (mng_info->clip.right |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5638 | -mng_info->clip.left); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5639 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5640 | subframe_height=(size_t) (mng_info->clip.bottom |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5641 | -mng_info->clip.top); |
| 5642 | /* |
| 5643 | Insert a background layer behind the frame if framing_mode is 4. |
| 5644 | */ |
| 5645 | #if defined(MNG_INSERT_LAYERS) |
| 5646 | if (logging != MagickFalse) |
| 5647 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 5648 | " subframe_width=%.20g, subframe_height=%.20g",(double) |
| 5649 | subframe_width,(double) subframe_height); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5650 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5651 | if (insert_layers && (mng_info->framing_mode == 4) && |
| 5652 | (subframe_width) && (subframe_height)) |
| 5653 | { |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5654 | /* Allocate next image structure. */ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 5655 | if (GetAuthenticPixelQueue(image) != (Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5656 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 5657 | AcquireNextImage(image_info,image,exception); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5658 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5659 | if (GetNextImageInList(image) == (Image *) NULL) |
| 5660 | { |
| 5661 | image=DestroyImageList(image); |
| 5662 | MngInfoFreeStruct(mng_info,&have_mng_structure); |
| 5663 | return((Image *) NULL); |
| 5664 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5665 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5666 | image=SyncNextImageInList(image); |
| 5667 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5668 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5669 | mng_info->image=image; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5670 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5671 | if (term_chunk_found) |
| 5672 | { |
| 5673 | image->start_loop=MagickTrue; |
| 5674 | image->iterations=mng_iterations; |
| 5675 | term_chunk_found=MagickFalse; |
| 5676 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5677 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5678 | else |
| 5679 | image->start_loop=MagickFalse; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5680 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5681 | image->columns=subframe_width; |
| 5682 | image->rows=subframe_height; |
| 5683 | image->page.width=subframe_width; |
| 5684 | image->page.height=subframe_height; |
| 5685 | image->page.x=mng_info->clip.left; |
| 5686 | image->page.y=mng_info->clip.top; |
| 5687 | image->background_color=mng_background_color; |
cristy | 8a46d82 | 2012-08-28 23:32:39 +0000 | [diff] [blame] | 5688 | image->alpha_trait=UndefinedPixelTrait; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5689 | image->delay=0; |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 5690 | (void) SetImageBackgroundColor(image,exception); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5691 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5692 | if (logging != MagickFalse) |
| 5693 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5694 | " Insert backgd layer, L=%.20g, R=%.20g T=%.20g, B=%.20g", |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 5695 | (double) mng_info->clip.left,(double) mng_info->clip.right, |
| 5696 | (double) mng_info->clip.top,(double) mng_info->clip.bottom); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5697 | } |
| 5698 | #endif |
| 5699 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
| 5700 | continue; |
| 5701 | } |
glennrp | a454cdc | 2015-01-24 01:10:45 +0000 | [diff] [blame] | 5702 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5703 | if (memcmp(type,mng_CLIP,4) == 0) |
| 5704 | { |
| 5705 | unsigned int |
| 5706 | first_object, |
| 5707 | last_object; |
| 5708 | |
| 5709 | /* |
| 5710 | Read CLIP. |
| 5711 | */ |
glennrp | a454cdc | 2015-01-24 01:10:45 +0000 | [diff] [blame] | 5712 | if (length > 3) |
| 5713 | { |
| 5714 | first_object=(p[0] << 8) | p[1]; |
| 5715 | last_object=(p[2] << 8) | p[3]; |
| 5716 | p+=4; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5717 | |
glennrp | a454cdc | 2015-01-24 01:10:45 +0000 | [diff] [blame] | 5718 | for (i=(int) first_object; i <= (int) last_object; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5719 | { |
glennrp | a454cdc | 2015-01-24 01:10:45 +0000 | [diff] [blame] | 5720 | if (mng_info->exists[i] && !mng_info->frozen[i]) |
| 5721 | { |
| 5722 | MngBox |
| 5723 | box; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5724 | |
glennrp | a454cdc | 2015-01-24 01:10:45 +0000 | [diff] [blame] | 5725 | box=mng_info->object_clip[i]; |
| 5726 | if ((p-chunk) < (ssize_t) (length-17)) |
| 5727 | mng_info->object_clip[i]= |
| 5728 | mng_read_box(box,(char) p[0],&p[1]); |
| 5729 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5730 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5731 | |
glennrp | a454cdc | 2015-01-24 01:10:45 +0000 | [diff] [blame] | 5732 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5733 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
| 5734 | continue; |
| 5735 | } |
glennrp | a454cdc | 2015-01-24 01:10:45 +0000 | [diff] [blame] | 5736 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5737 | if (memcmp(type,mng_SAVE,4) == 0) |
| 5738 | { |
| 5739 | for (i=1; i < MNG_MAX_OBJECTS; i++) |
| 5740 | if (mng_info->exists[i]) |
| 5741 | { |
| 5742 | mng_info->frozen[i]=MagickTrue; |
| 5743 | #ifdef MNG_OBJECT_BUFFERS |
| 5744 | if (mng_info->ob[i] != (MngBuffer *) NULL) |
| 5745 | mng_info->ob[i]->frozen=MagickTrue; |
| 5746 | #endif |
| 5747 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5748 | |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 5749 | if (length != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5750 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5751 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5752 | continue; |
| 5753 | } |
| 5754 | |
| 5755 | if ((memcmp(type,mng_DISC,4) == 0) || (memcmp(type,mng_SEEK,4) == 0)) |
| 5756 | { |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5757 | /* Read DISC or SEEK. */ |
| 5758 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5759 | if ((length == 0) || !memcmp(type,mng_SEEK,4)) |
| 5760 | { |
| 5761 | for (i=1; i < MNG_MAX_OBJECTS; i++) |
| 5762 | MngInfoDiscardObject(mng_info,i); |
| 5763 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5764 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5765 | else |
| 5766 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5767 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5768 | j; |
| 5769 | |
Cristy | f8d9cb8 | 2015-09-11 11:51:22 -0400 | [diff] [blame] | 5770 | for (j=1; j < (ssize_t) length; j+=2) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5771 | { |
Cristy | f8d9cb8 | 2015-09-11 11:51:22 -0400 | [diff] [blame] | 5772 | i=p[j-1] << 8 | p[j]; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5773 | MngInfoDiscardObject(mng_info,i); |
| 5774 | } |
| 5775 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5776 | |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 5777 | if (length != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5778 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5779 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5780 | continue; |
| 5781 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5782 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5783 | if (memcmp(type,mng_MOVE,4) == 0) |
| 5784 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5785 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5786 | first_object, |
| 5787 | last_object; |
| 5788 | |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5789 | /* read MOVE */ |
| 5790 | |
glennrp | a454cdc | 2015-01-24 01:10:45 +0000 | [diff] [blame] | 5791 | if (length > 3) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5792 | { |
glennrp | a454cdc | 2015-01-24 01:10:45 +0000 | [diff] [blame] | 5793 | first_object=(p[0] << 8) | p[1]; |
| 5794 | last_object=(p[2] << 8) | p[3]; |
| 5795 | p+=4; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5796 | |
glennrp | a454cdc | 2015-01-24 01:10:45 +0000 | [diff] [blame] | 5797 | for (i=(ssize_t) first_object; i <= (ssize_t) last_object; i++) |
| 5798 | { |
| 5799 | if (mng_info->exists[i] && !mng_info->frozen[i] && |
| 5800 | (p-chunk) < (ssize_t) (length-8)) |
| 5801 | { |
| 5802 | MngPair |
| 5803 | new_pair; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5804 | |
glennrp | a454cdc | 2015-01-24 01:10:45 +0000 | [diff] [blame] | 5805 | MngPair |
| 5806 | old_pair; |
| 5807 | |
| 5808 | old_pair.a=mng_info->x_off[i]; |
| 5809 | old_pair.b=mng_info->y_off[i]; |
| 5810 | new_pair=mng_read_pair(old_pair,(int) p[0],&p[1]); |
| 5811 | mng_info->x_off[i]=new_pair.a; |
| 5812 | mng_info->y_off[i]=new_pair.b; |
| 5813 | } |
| 5814 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5815 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5816 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5817 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
| 5818 | continue; |
| 5819 | } |
| 5820 | |
| 5821 | if (memcmp(type,mng_LOOP,4) == 0) |
| 5822 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5823 | ssize_t loop_iters=1; |
glennrp | 24e6d42 | 2015-01-24 03:54:57 +0000 | [diff] [blame] | 5824 | if (length > 4) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5825 | { |
glennrp | a454cdc | 2015-01-24 01:10:45 +0000 | [diff] [blame] | 5826 | loop_level=chunk[0]; |
| 5827 | mng_info->loop_active[loop_level]=1; /* mark loop active */ |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5828 | |
glennrp | a454cdc | 2015-01-24 01:10:45 +0000 | [diff] [blame] | 5829 | /* Record starting point. */ |
| 5830 | loop_iters=mng_get_long(&chunk[1]); |
| 5831 | |
| 5832 | if (logging != MagickFalse) |
| 5833 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 5834 | " LOOP level %.20g has %.20g iterations ", |
| 5835 | (double) loop_level, (double) loop_iters); |
| 5836 | |
| 5837 | if (loop_iters == 0) |
| 5838 | skipping_loop=loop_level; |
| 5839 | |
| 5840 | else |
| 5841 | { |
| 5842 | mng_info->loop_jump[loop_level]=TellBlob(image); |
| 5843 | mng_info->loop_count[loop_level]=loop_iters; |
| 5844 | } |
| 5845 | |
| 5846 | mng_info->loop_iteration[loop_level]=0; |
| 5847 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5848 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
| 5849 | continue; |
| 5850 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5851 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5852 | if (memcmp(type,mng_ENDL,4) == 0) |
| 5853 | { |
glennrp | 24e6d42 | 2015-01-24 03:54:57 +0000 | [diff] [blame] | 5854 | if (length > 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5855 | { |
glennrp | 24e6d42 | 2015-01-24 03:54:57 +0000 | [diff] [blame] | 5856 | loop_level=chunk[0]; |
| 5857 | |
| 5858 | if (skipping_loop > 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5859 | { |
glennrp | 24e6d42 | 2015-01-24 03:54:57 +0000 | [diff] [blame] | 5860 | if (skipping_loop == loop_level) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5861 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5862 | /* |
glennrp | 24e6d42 | 2015-01-24 03:54:57 +0000 | [diff] [blame] | 5863 | Found end of zero-iteration loop. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5864 | */ |
glennrp | 24e6d42 | 2015-01-24 03:54:57 +0000 | [diff] [blame] | 5865 | skipping_loop=(-1); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5866 | mng_info->loop_active[loop_level]=0; |
glennrp | 24e6d42 | 2015-01-24 03:54:57 +0000 | [diff] [blame] | 5867 | } |
| 5868 | } |
| 5869 | |
| 5870 | else |
| 5871 | { |
| 5872 | if (mng_info->loop_active[loop_level] == 1) |
| 5873 | { |
| 5874 | mng_info->loop_count[loop_level]--; |
| 5875 | mng_info->loop_iteration[loop_level]++; |
| 5876 | |
| 5877 | if (logging != MagickFalse) |
| 5878 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 5879 | " ENDL: LOOP level %.20g has %.20g remaining iters ", |
| 5880 | (double) loop_level,(double) |
| 5881 | mng_info->loop_count[loop_level]); |
| 5882 | |
| 5883 | if (mng_info->loop_count[loop_level] != 0) |
| 5884 | { |
| 5885 | offset= |
| 5886 | SeekBlob(image,mng_info->loop_jump[loop_level], |
| 5887 | SEEK_SET); |
| 5888 | |
| 5889 | if (offset < 0) |
| 5890 | ThrowReaderException(CorruptImageError, |
| 5891 | "ImproperImageHeader"); |
| 5892 | } |
| 5893 | |
| 5894 | else |
| 5895 | { |
| 5896 | short |
| 5897 | last_level; |
| 5898 | |
| 5899 | /* |
| 5900 | Finished loop. |
| 5901 | */ |
| 5902 | mng_info->loop_active[loop_level]=0; |
| 5903 | last_level=(-1); |
| 5904 | for (i=0; i < loop_level; i++) |
| 5905 | if (mng_info->loop_active[i] == 1) |
| 5906 | last_level=(short) i; |
| 5907 | loop_level=last_level; |
| 5908 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5909 | } |
| 5910 | } |
| 5911 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5912 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5913 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
| 5914 | continue; |
| 5915 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5916 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5917 | if (memcmp(type,mng_CLON,4) == 0) |
| 5918 | { |
| 5919 | if (mng_info->clon_warning == 0) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 5920 | (void) ThrowMagickException(exception,GetMagickModule(), |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5921 | CoderError,"CLON is not implemented yet","`%s'", |
| 5922 | image->filename); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5923 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5924 | mng_info->clon_warning++; |
| 5925 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5926 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5927 | if (memcmp(type,mng_MAGN,4) == 0) |
| 5928 | { |
| 5929 | png_uint_16 |
| 5930 | magn_first, |
| 5931 | magn_last, |
| 5932 | magn_mb, |
| 5933 | magn_ml, |
| 5934 | magn_mr, |
| 5935 | magn_mt, |
| 5936 | magn_mx, |
| 5937 | magn_my, |
| 5938 | magn_methx, |
| 5939 | magn_methy; |
| 5940 | |
| 5941 | if (length > 1) |
| 5942 | magn_first=(p[0] << 8) | p[1]; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5943 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5944 | else |
| 5945 | magn_first=0; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5946 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5947 | if (length > 3) |
| 5948 | magn_last=(p[2] << 8) | p[3]; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 5949 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5950 | else |
| 5951 | magn_last=magn_first; |
| 5952 | #ifndef MNG_OBJECT_BUFFERS |
| 5953 | if (magn_first || magn_last) |
| 5954 | if (mng_info->magn_warning == 0) |
| 5955 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 5956 | (void) ThrowMagickException(exception, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5957 | GetMagickModule(),CoderError, |
| 5958 | "MAGN is not implemented yet for nonzero objects", |
| 5959 | "`%s'",image->filename); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5960 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5961 | mng_info->magn_warning++; |
| 5962 | } |
| 5963 | #endif |
| 5964 | if (length > 4) |
| 5965 | magn_methx=p[4]; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5966 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5967 | else |
| 5968 | magn_methx=0; |
| 5969 | |
| 5970 | if (length > 6) |
| 5971 | magn_mx=(p[5] << 8) | p[6]; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5972 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5973 | else |
| 5974 | magn_mx=1; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5975 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5976 | if (magn_mx == 0) |
| 5977 | magn_mx=1; |
| 5978 | |
| 5979 | if (length > 8) |
| 5980 | magn_my=(p[7] << 8) | p[8]; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5981 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5982 | else |
| 5983 | magn_my=magn_mx; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5984 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5985 | if (magn_my == 0) |
| 5986 | magn_my=1; |
| 5987 | |
| 5988 | if (length > 10) |
| 5989 | magn_ml=(p[9] << 8) | p[10]; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5990 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5991 | else |
| 5992 | magn_ml=magn_mx; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5993 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5994 | if (magn_ml == 0) |
| 5995 | magn_ml=1; |
| 5996 | |
| 5997 | if (length > 12) |
| 5998 | magn_mr=(p[11] << 8) | p[12]; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 5999 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6000 | else |
| 6001 | magn_mr=magn_mx; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6002 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6003 | if (magn_mr == 0) |
| 6004 | magn_mr=1; |
| 6005 | |
| 6006 | if (length > 14) |
| 6007 | magn_mt=(p[13] << 8) | p[14]; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6008 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6009 | else |
| 6010 | magn_mt=magn_my; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6011 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6012 | if (magn_mt == 0) |
| 6013 | magn_mt=1; |
| 6014 | |
| 6015 | if (length > 16) |
| 6016 | magn_mb=(p[15] << 8) | p[16]; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6017 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6018 | else |
| 6019 | magn_mb=magn_my; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6020 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6021 | if (magn_mb == 0) |
| 6022 | magn_mb=1; |
| 6023 | |
| 6024 | if (length > 17) |
| 6025 | magn_methy=p[17]; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6026 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6027 | else |
| 6028 | magn_methy=magn_methx; |
| 6029 | |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6030 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6031 | if (magn_methx > 5 || magn_methy > 5) |
| 6032 | if (mng_info->magn_warning == 0) |
| 6033 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6034 | (void) ThrowMagickException(exception, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6035 | GetMagickModule(),CoderError, |
| 6036 | "Unknown MAGN method in MNG datastream","`%s'", |
| 6037 | image->filename); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6038 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6039 | mng_info->magn_warning++; |
| 6040 | } |
| 6041 | #ifdef MNG_OBJECT_BUFFERS |
| 6042 | /* Magnify existing objects in the range magn_first to magn_last */ |
| 6043 | #endif |
| 6044 | if (magn_first == 0 || magn_last == 0) |
| 6045 | { |
| 6046 | /* Save the magnification factors for object 0 */ |
| 6047 | mng_info->magn_mb=magn_mb; |
| 6048 | mng_info->magn_ml=magn_ml; |
| 6049 | mng_info->magn_mr=magn_mr; |
| 6050 | mng_info->magn_mt=magn_mt; |
| 6051 | mng_info->magn_mx=magn_mx; |
| 6052 | mng_info->magn_my=magn_my; |
| 6053 | mng_info->magn_methx=magn_methx; |
| 6054 | mng_info->magn_methy=magn_methy; |
| 6055 | } |
| 6056 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6057 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6058 | if (memcmp(type,mng_PAST,4) == 0) |
| 6059 | { |
| 6060 | if (mng_info->past_warning == 0) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6061 | (void) ThrowMagickException(exception,GetMagickModule(), |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6062 | CoderError,"PAST is not implemented yet","`%s'", |
| 6063 | image->filename); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6064 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6065 | mng_info->past_warning++; |
| 6066 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6067 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6068 | if (memcmp(type,mng_SHOW,4) == 0) |
| 6069 | { |
| 6070 | if (mng_info->show_warning == 0) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6071 | (void) ThrowMagickException(exception,GetMagickModule(), |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6072 | CoderError,"SHOW is not implemented yet","`%s'", |
| 6073 | image->filename); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6074 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6075 | mng_info->show_warning++; |
| 6076 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6077 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6078 | if (memcmp(type,mng_sBIT,4) == 0) |
| 6079 | { |
| 6080 | if (length < 4) |
| 6081 | mng_info->have_global_sbit=MagickFalse; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6082 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6083 | else |
| 6084 | { |
| 6085 | mng_info->global_sbit.gray=p[0]; |
| 6086 | mng_info->global_sbit.red=p[0]; |
| 6087 | mng_info->global_sbit.green=p[1]; |
| 6088 | mng_info->global_sbit.blue=p[2]; |
| 6089 | mng_info->global_sbit.alpha=p[3]; |
| 6090 | mng_info->have_global_sbit=MagickTrue; |
| 6091 | } |
| 6092 | } |
| 6093 | if (memcmp(type,mng_pHYs,4) == 0) |
| 6094 | { |
| 6095 | if (length > 8) |
| 6096 | { |
| 6097 | mng_info->global_x_pixels_per_unit= |
cristy | 8182b07 | 2010-05-30 20:10:53 +0000 | [diff] [blame] | 6098 | (size_t) mng_get_long(p); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6099 | mng_info->global_y_pixels_per_unit= |
cristy | 8182b07 | 2010-05-30 20:10:53 +0000 | [diff] [blame] | 6100 | (size_t) mng_get_long(&p[4]); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6101 | mng_info->global_phys_unit_type=p[8]; |
| 6102 | mng_info->have_global_phys=MagickTrue; |
| 6103 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6104 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6105 | else |
| 6106 | mng_info->have_global_phys=MagickFalse; |
| 6107 | } |
| 6108 | if (memcmp(type,mng_pHYg,4) == 0) |
| 6109 | { |
| 6110 | if (mng_info->phyg_warning == 0) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6111 | (void) ThrowMagickException(exception,GetMagickModule(), |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6112 | CoderError,"pHYg is not implemented.","`%s'",image->filename); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6113 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6114 | mng_info->phyg_warning++; |
| 6115 | } |
| 6116 | if (memcmp(type,mng_BASI,4) == 0) |
| 6117 | { |
| 6118 | skip_to_iend=MagickTrue; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6119 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6120 | if (mng_info->basi_warning == 0) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6121 | (void) ThrowMagickException(exception,GetMagickModule(), |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6122 | CoderError,"BASI is not implemented yet","`%s'", |
| 6123 | image->filename); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6124 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6125 | mng_info->basi_warning++; |
| 6126 | #ifdef MNG_BASI_SUPPORTED |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 6127 | basi_width=(size_t) ((p[0] << 24) | (p[1] << 16) | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6128 | (p[2] << 8) | p[3]); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 6129 | basi_height=(size_t) ((p[4] << 24) | (p[5] << 16) | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6130 | (p[6] << 8) | p[7]); |
| 6131 | basi_color_type=p[8]; |
| 6132 | basi_compression_method=p[9]; |
| 6133 | basi_filter_type=p[10]; |
| 6134 | basi_interlace_method=p[11]; |
| 6135 | if (length > 11) |
| 6136 | basi_red=(p[12] << 8) & p[13]; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6137 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6138 | else |
| 6139 | basi_red=0; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6140 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6141 | if (length > 13) |
| 6142 | basi_green=(p[14] << 8) & p[15]; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6143 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6144 | else |
| 6145 | basi_green=0; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6146 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6147 | if (length > 15) |
| 6148 | basi_blue=(p[16] << 8) & p[17]; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6149 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6150 | else |
| 6151 | basi_blue=0; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6152 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6153 | if (length > 17) |
| 6154 | basi_alpha=(p[18] << 8) & p[19]; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6155 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6156 | else |
| 6157 | { |
| 6158 | if (basi_sample_depth == 16) |
| 6159 | basi_alpha=65535L; |
| 6160 | else |
| 6161 | basi_alpha=255; |
| 6162 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6163 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6164 | if (length > 19) |
| 6165 | basi_viewable=p[20]; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6166 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6167 | else |
| 6168 | basi_viewable=0; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6169 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6170 | #endif |
| 6171 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
| 6172 | continue; |
| 6173 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6174 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6175 | if (memcmp(type,mng_IHDR,4) |
| 6176 | #if defined(JNG_SUPPORTED) |
| 6177 | && memcmp(type,mng_JHDR,4) |
| 6178 | #endif |
| 6179 | ) |
| 6180 | { |
| 6181 | /* Not an IHDR or JHDR chunk */ |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 6182 | if (length != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6183 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6184 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6185 | continue; |
| 6186 | } |
| 6187 | /* Process IHDR */ |
| 6188 | if (logging != MagickFalse) |
| 6189 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 6190 | " Processing %c%c%c%c chunk",type[0],type[1],type[2],type[3]); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6191 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6192 | mng_info->exists[object_id]=MagickTrue; |
| 6193 | mng_info->viewable[object_id]=MagickTrue; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6194 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6195 | if (mng_info->invisible[object_id]) |
| 6196 | { |
| 6197 | if (logging != MagickFalse) |
| 6198 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 6199 | " Skipping invisible object"); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6200 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6201 | skip_to_iend=MagickTrue; |
| 6202 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
| 6203 | continue; |
| 6204 | } |
| 6205 | #if defined(MNG_INSERT_LAYERS) |
| 6206 | if (length < 8) |
| 6207 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6208 | |
cristy | 8182b07 | 2010-05-30 20:10:53 +0000 | [diff] [blame] | 6209 | image_width=(size_t) mng_get_long(p); |
| 6210 | image_height=(size_t) mng_get_long(&p[4]); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6211 | #endif |
| 6212 | chunk=(unsigned char *) RelinquishMagickMemory(chunk); |
| 6213 | |
| 6214 | /* |
| 6215 | Insert a transparent background layer behind the entire animation |
| 6216 | if it is not full screen. |
| 6217 | */ |
| 6218 | #if defined(MNG_INSERT_LAYERS) |
| 6219 | if (insert_layers && mng_type && first_mng_object) |
| 6220 | { |
| 6221 | if ((mng_info->clip.left > 0) || (mng_info->clip.top > 0) || |
| 6222 | (image_width < mng_info->mng_width) || |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 6223 | (mng_info->clip.right < (ssize_t) mng_info->mng_width) || |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6224 | (image_height < mng_info->mng_height) || |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 6225 | (mng_info->clip.bottom < (ssize_t) mng_info->mng_height)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6226 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6227 | if (GetAuthenticPixelQueue(image) != (Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6228 | { |
| 6229 | /* |
| 6230 | Allocate next image structure. |
| 6231 | */ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6232 | AcquireNextImage(image_info,image,exception); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6233 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6234 | if (GetNextImageInList(image) == (Image *) NULL) |
| 6235 | { |
| 6236 | image=DestroyImageList(image); |
| 6237 | MngInfoFreeStruct(mng_info,&have_mng_structure); |
| 6238 | return((Image *) NULL); |
| 6239 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6240 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6241 | image=SyncNextImageInList(image); |
| 6242 | } |
| 6243 | mng_info->image=image; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6244 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6245 | if (term_chunk_found) |
| 6246 | { |
| 6247 | image->start_loop=MagickTrue; |
| 6248 | image->iterations=mng_iterations; |
| 6249 | term_chunk_found=MagickFalse; |
| 6250 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6251 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6252 | else |
| 6253 | image->start_loop=MagickFalse; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6254 | |
| 6255 | /* Make a background rectangle. */ |
| 6256 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6257 | image->delay=0; |
| 6258 | image->columns=mng_info->mng_width; |
| 6259 | image->rows=mng_info->mng_height; |
| 6260 | image->page.width=mng_info->mng_width; |
| 6261 | image->page.height=mng_info->mng_height; |
| 6262 | image->page.x=0; |
| 6263 | image->page.y=0; |
| 6264 | image->background_color=mng_background_color; |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6265 | (void) SetImageBackgroundColor(image,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6266 | if (logging != MagickFalse) |
| 6267 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 6268 | " Inserted transparent background layer, W=%.20g, H=%.20g", |
| 6269 | (double) mng_info->mng_width,(double) mng_info->mng_height); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6270 | } |
| 6271 | } |
| 6272 | /* |
| 6273 | Insert a background layer behind the upcoming image if |
| 6274 | framing_mode is 3, and we haven't already inserted one. |
| 6275 | */ |
| 6276 | if (insert_layers && (mng_info->framing_mode == 3) && |
| 6277 | (subframe_width) && (subframe_height) && (simplicity == 0 || |
| 6278 | (simplicity & 0x08))) |
| 6279 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6280 | if (GetAuthenticPixelQueue(image) != (Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6281 | { |
| 6282 | /* |
| 6283 | Allocate next image structure. |
| 6284 | */ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6285 | AcquireNextImage(image_info,image,exception); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6286 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6287 | if (GetNextImageInList(image) == (Image *) NULL) |
| 6288 | { |
| 6289 | image=DestroyImageList(image); |
| 6290 | MngInfoFreeStruct(mng_info,&have_mng_structure); |
| 6291 | return((Image *) NULL); |
| 6292 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6293 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6294 | image=SyncNextImageInList(image); |
| 6295 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 6296 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6297 | mng_info->image=image; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 6298 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6299 | if (term_chunk_found) |
| 6300 | { |
| 6301 | image->start_loop=MagickTrue; |
| 6302 | image->iterations=mng_iterations; |
| 6303 | term_chunk_found=MagickFalse; |
| 6304 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 6305 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6306 | else |
| 6307 | image->start_loop=MagickFalse; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6308 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6309 | image->delay=0; |
| 6310 | image->columns=subframe_width; |
| 6311 | image->rows=subframe_height; |
| 6312 | image->page.width=subframe_width; |
| 6313 | image->page.height=subframe_height; |
| 6314 | image->page.x=mng_info->clip.left; |
| 6315 | image->page.y=mng_info->clip.top; |
| 6316 | image->background_color=mng_background_color; |
cristy | 8a46d82 | 2012-08-28 23:32:39 +0000 | [diff] [blame] | 6317 | image->alpha_trait=UndefinedPixelTrait; |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6318 | (void) SetImageBackgroundColor(image,exception); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 6319 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6320 | if (logging != MagickFalse) |
| 6321 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 6322 | " Insert background layer, L=%.20g, R=%.20g T=%.20g, B=%.20g", |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 6323 | (double) mng_info->clip.left,(double) mng_info->clip.right, |
| 6324 | (double) mng_info->clip.top,(double) mng_info->clip.bottom); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6325 | } |
| 6326 | #endif /* MNG_INSERT_LAYERS */ |
| 6327 | first_mng_object=MagickFalse; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6328 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6329 | if (GetAuthenticPixelQueue(image) != (Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6330 | { |
| 6331 | /* |
| 6332 | Allocate next image structure. |
| 6333 | */ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6334 | AcquireNextImage(image_info,image,exception); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6335 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6336 | if (GetNextImageInList(image) == (Image *) NULL) |
| 6337 | { |
| 6338 | image=DestroyImageList(image); |
| 6339 | MngInfoFreeStruct(mng_info,&have_mng_structure); |
| 6340 | return((Image *) NULL); |
| 6341 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6342 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6343 | image=SyncNextImageInList(image); |
| 6344 | } |
| 6345 | mng_info->image=image; |
| 6346 | status=SetImageProgress(image,LoadImagesTag,TellBlob(image), |
| 6347 | GetBlobSize(image)); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 6348 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6349 | if (status == MagickFalse) |
| 6350 | break; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 6351 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6352 | if (term_chunk_found) |
| 6353 | { |
| 6354 | image->start_loop=MagickTrue; |
| 6355 | term_chunk_found=MagickFalse; |
| 6356 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 6357 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6358 | else |
| 6359 | image->start_loop=MagickFalse; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 6360 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6361 | if (mng_info->framing_mode == 1 || mng_info->framing_mode == 3) |
| 6362 | { |
| 6363 | image->delay=frame_delay; |
| 6364 | frame_delay=default_frame_delay; |
| 6365 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 6366 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6367 | else |
| 6368 | image->delay=0; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 6369 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6370 | image->page.width=mng_info->mng_width; |
| 6371 | image->page.height=mng_info->mng_height; |
| 6372 | image->page.x=mng_info->x_off[object_id]; |
| 6373 | image->page.y=mng_info->y_off[object_id]; |
| 6374 | image->iterations=mng_iterations; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6375 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6376 | /* |
| 6377 | Seek back to the beginning of the IHDR or JHDR chunk's length field. |
| 6378 | */ |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6379 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6380 | if (logging != MagickFalse) |
| 6381 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 6382 | " Seeking back to beginning of %c%c%c%c chunk",type[0],type[1], |
| 6383 | type[2],type[3]); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6384 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 6385 | offset=SeekBlob(image,-((ssize_t) length+12),SEEK_CUR); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6386 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6387 | if (offset < 0) |
| 6388 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| 6389 | } |
| 6390 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6391 | mng_info->image=image; |
| 6392 | mng_info->mng_type=mng_type; |
| 6393 | mng_info->object_id=object_id; |
| 6394 | |
| 6395 | if (memcmp(type,mng_IHDR,4) == 0) |
| 6396 | image=ReadOnePNGImage(mng_info,image_info,exception); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6397 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6398 | #if defined(JNG_SUPPORTED) |
| 6399 | else |
| 6400 | image=ReadOneJNGImage(mng_info,image_info,exception); |
| 6401 | #endif |
| 6402 | |
| 6403 | if (image == (Image *) NULL) |
| 6404 | { |
glennrp | 889a928 | 2015-04-09 16:51:44 +0000 | [diff] [blame] | 6405 | if (logging != MagickFalse) |
| 6406 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 6407 | "exit ReadJNGImage() with error"); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6408 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6409 | MngInfoFreeStruct(mng_info,&have_mng_structure); |
| 6410 | return((Image *) NULL); |
| 6411 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 6412 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6413 | if (image->columns == 0 || image->rows == 0) |
| 6414 | { |
| 6415 | (void) CloseBlob(image); |
| 6416 | image=DestroyImageList(image); |
| 6417 | MngInfoFreeStruct(mng_info,&have_mng_structure); |
| 6418 | return((Image *) NULL); |
| 6419 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 6420 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6421 | mng_info->image=image; |
| 6422 | |
| 6423 | if (mng_type) |
| 6424 | { |
| 6425 | MngBox |
| 6426 | crop_box; |
| 6427 | |
| 6428 | if (mng_info->magn_methx || mng_info->magn_methy) |
| 6429 | { |
| 6430 | png_uint_32 |
| 6431 | magnified_height, |
| 6432 | magnified_width; |
| 6433 | |
| 6434 | if (logging != MagickFalse) |
| 6435 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 6436 | " Processing MNG MAGN chunk"); |
| 6437 | |
| 6438 | if (mng_info->magn_methx == 1) |
| 6439 | { |
| 6440 | magnified_width=mng_info->magn_ml; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6441 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6442 | if (image->columns > 1) |
| 6443 | magnified_width += mng_info->magn_mr; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6444 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6445 | if (image->columns > 2) |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6446 | magnified_width += (png_uint_32) |
| 6447 | ((image->columns-2)*(mng_info->magn_mx)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6448 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6449 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6450 | else |
| 6451 | { |
cristy | 4e5bc84 | 2010-06-09 13:56:01 +0000 | [diff] [blame] | 6452 | magnified_width=(png_uint_32) image->columns; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6453 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6454 | if (image->columns > 1) |
| 6455 | magnified_width += mng_info->magn_ml-1; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6456 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6457 | if (image->columns > 2) |
| 6458 | magnified_width += mng_info->magn_mr-1; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6459 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6460 | if (image->columns > 3) |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6461 | magnified_width += (png_uint_32) |
| 6462 | ((image->columns-3)*(mng_info->magn_mx-1)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6463 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6464 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6465 | if (mng_info->magn_methy == 1) |
| 6466 | { |
| 6467 | magnified_height=mng_info->magn_mt; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6468 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6469 | if (image->rows > 1) |
| 6470 | magnified_height += mng_info->magn_mb; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6471 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6472 | if (image->rows > 2) |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6473 | magnified_height += (png_uint_32) |
| 6474 | ((image->rows-2)*(mng_info->magn_my)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6475 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6476 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6477 | else |
| 6478 | { |
cristy | 4e5bc84 | 2010-06-09 13:56:01 +0000 | [diff] [blame] | 6479 | magnified_height=(png_uint_32) image->rows; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6480 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6481 | if (image->rows > 1) |
| 6482 | magnified_height += mng_info->magn_mt-1; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6483 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6484 | if (image->rows > 2) |
| 6485 | magnified_height += mng_info->magn_mb-1; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6486 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6487 | if (image->rows > 3) |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6488 | magnified_height += (png_uint_32) |
| 6489 | ((image->rows-3)*(mng_info->magn_my-1)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6490 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6491 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6492 | if (magnified_height > image->rows || |
| 6493 | magnified_width > image->columns) |
| 6494 | { |
| 6495 | Image |
| 6496 | *large_image; |
| 6497 | |
| 6498 | int |
| 6499 | yy; |
| 6500 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6501 | Quantum |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6502 | *next, |
| 6503 | *prev; |
| 6504 | |
| 6505 | png_uint_16 |
| 6506 | magn_methx, |
| 6507 | magn_methy; |
| 6508 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6509 | ssize_t |
| 6510 | m, |
| 6511 | y; |
| 6512 | |
| 6513 | register Quantum |
| 6514 | *n, |
| 6515 | *q; |
| 6516 | |
| 6517 | register ssize_t |
| 6518 | x; |
| 6519 | |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6520 | /* Allocate next image structure. */ |
| 6521 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6522 | if (logging != MagickFalse) |
| 6523 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 6524 | " Allocate magnified image"); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6525 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6526 | AcquireNextImage(image_info,image,exception); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6527 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6528 | if (GetNextImageInList(image) == (Image *) NULL) |
| 6529 | { |
| 6530 | image=DestroyImageList(image); |
| 6531 | MngInfoFreeStruct(mng_info,&have_mng_structure); |
| 6532 | return((Image *) NULL); |
| 6533 | } |
| 6534 | |
| 6535 | large_image=SyncNextImageInList(image); |
| 6536 | |
| 6537 | large_image->columns=magnified_width; |
| 6538 | large_image->rows=magnified_height; |
| 6539 | |
| 6540 | magn_methx=mng_info->magn_methx; |
| 6541 | magn_methy=mng_info->magn_methy; |
| 6542 | |
glennrp | 3faa9a3 | 2011-04-23 14:00:25 +0000 | [diff] [blame] | 6543 | #if (MAGICKCORE_QUANTUM_DEPTH > 16) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6544 | #define QM unsigned short |
| 6545 | if (magn_methx != 1 || magn_methy != 1) |
| 6546 | { |
| 6547 | /* |
| 6548 | Scale pixels to unsigned shorts to prevent |
| 6549 | overflow of intermediate values of interpolations |
| 6550 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 6551 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6552 | { |
| 6553 | q=GetAuthenticPixels(image,0,y,image->columns,1, |
| 6554 | exception); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6555 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 6556 | for (x=(ssize_t) image->columns-1; x >= 0; x--) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6557 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6558 | SetPixelRed(image,ScaleQuantumToShort( |
| 6559 | GetPixelRed(image,q)),q); |
| 6560 | SetPixelGreen(image,ScaleQuantumToShort( |
| 6561 | GetPixelGreen(image,q)),q); |
| 6562 | SetPixelBlue(image,ScaleQuantumToShort( |
| 6563 | GetPixelBlue(image,q)),q); |
| 6564 | SetPixelAlpha(image,ScaleQuantumToShort( |
| 6565 | GetPixelAlpha(image,q)),q); |
| 6566 | q+=GetPixelChannels(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6567 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6568 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6569 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 6570 | break; |
| 6571 | } |
| 6572 | } |
| 6573 | #else |
| 6574 | #define QM Quantum |
| 6575 | #endif |
| 6576 | |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 6577 | if (image->alpha_trait != UndefinedPixelTrait) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6578 | (void) SetImageBackgroundColor(large_image,exception); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6579 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6580 | else |
| 6581 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6582 | large_image->background_color.alpha=OpaqueAlpha; |
| 6583 | (void) SetImageBackgroundColor(large_image,exception); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6584 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6585 | if (magn_methx == 4) |
| 6586 | magn_methx=2; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6587 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6588 | if (magn_methx == 5) |
| 6589 | magn_methx=3; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6590 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6591 | if (magn_methy == 4) |
| 6592 | magn_methy=2; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6593 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6594 | if (magn_methy == 5) |
| 6595 | magn_methy=3; |
| 6596 | } |
| 6597 | |
| 6598 | /* magnify the rows into the right side of the large image */ |
| 6599 | |
| 6600 | if (logging != MagickFalse) |
| 6601 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 6602 | " Magnify the rows to %.20g",(double) large_image->rows); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 6603 | m=(ssize_t) mng_info->magn_mt; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6604 | yy=0; |
cristy | 4f7c434 | 2014-12-07 15:55:04 +0000 | [diff] [blame] | 6605 | length=(size_t) GetPixelChannels(image)*image->columns; |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6606 | next=(Quantum *) AcquireQuantumMemory(length,sizeof(*next)); |
| 6607 | prev=(Quantum *) AcquireQuantumMemory(length,sizeof(*prev)); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6608 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6609 | if ((prev == (Quantum *) NULL) || |
| 6610 | (next == (Quantum *) NULL)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6611 | { |
| 6612 | image=DestroyImageList(image); |
| 6613 | MngInfoFreeStruct(mng_info,&have_mng_structure); |
| 6614 | ThrowReaderException(ResourceLimitError, |
| 6615 | "MemoryAllocationFailed"); |
| 6616 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6617 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6618 | n=GetAuthenticPixels(image,0,0,image->columns,1,exception); |
| 6619 | (void) CopyMagickMemory(next,n,length); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6620 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 6621 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6622 | { |
| 6623 | if (y == 0) |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 6624 | m=(ssize_t) mng_info->magn_mt; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6625 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 6626 | else if (magn_methy > 1 && y == (ssize_t) image->rows-2) |
| 6627 | m=(ssize_t) mng_info->magn_mb; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6628 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 6629 | else if (magn_methy <= 1 && y == (ssize_t) image->rows-1) |
| 6630 | m=(ssize_t) mng_info->magn_mb; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6631 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 6632 | else if (magn_methy > 1 && y == (ssize_t) image->rows-1) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6633 | m=1; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6634 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6635 | else |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 6636 | m=(ssize_t) mng_info->magn_my; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6637 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6638 | n=prev; |
| 6639 | prev=next; |
| 6640 | next=n; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6641 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 6642 | if (y < (ssize_t) image->rows-1) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6643 | { |
| 6644 | n=GetAuthenticPixels(image,0,y+1,image->columns,1, |
| 6645 | exception); |
| 6646 | (void) CopyMagickMemory(next,n,length); |
| 6647 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6648 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6649 | for (i=0; i < m; i++, yy++) |
| 6650 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6651 | register Quantum |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6652 | *pixels; |
| 6653 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 6654 | assert(yy < (ssize_t) large_image->rows); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6655 | pixels=prev; |
| 6656 | n=next; |
| 6657 | q=GetAuthenticPixels(large_image,0,yy,large_image->columns, |
cristy | 9fff7b4 | 2011-04-29 01:09:31 +0000 | [diff] [blame] | 6658 | 1,exception); |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6659 | q+=(large_image->columns-image->columns)* |
| 6660 | GetPixelChannels(large_image); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6661 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 6662 | for (x=(ssize_t) image->columns-1; x >= 0; x--) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6663 | { |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 6664 | /* To do: get color as function of indexes[x] */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6665 | /* |
| 6666 | if (image->storage_class == PseudoClass) |
| 6667 | { |
| 6668 | } |
| 6669 | */ |
| 6670 | |
| 6671 | if (magn_methy <= 1) |
| 6672 | { |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6673 | /* replicate previous */ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6674 | SetPixelRed(large_image,GetPixelRed(image,pixels),q); |
| 6675 | SetPixelGreen(large_image,GetPixelGreen(image, |
| 6676 | pixels),q); |
| 6677 | SetPixelBlue(large_image,GetPixelBlue(image, |
| 6678 | pixels),q); |
| 6679 | SetPixelAlpha(large_image,GetPixelAlpha(image, |
| 6680 | pixels),q); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6681 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6682 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6683 | else if (magn_methy == 2 || magn_methy == 4) |
| 6684 | { |
| 6685 | if (i == 0) |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6686 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6687 | SetPixelRed(large_image,GetPixelRed(image, |
| 6688 | pixels),q); |
| 6689 | SetPixelGreen(large_image,GetPixelGreen(image, |
| 6690 | pixels),q); |
| 6691 | SetPixelBlue(large_image,GetPixelBlue(image, |
| 6692 | pixels),q); |
| 6693 | SetPixelAlpha(large_image,GetPixelAlpha(image, |
| 6694 | pixels),q); |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6695 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6696 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6697 | else |
| 6698 | { |
| 6699 | /* Interpolate */ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6700 | SetPixelRed(large_image,((QM) (((ssize_t) |
| 6701 | (2*i*(GetPixelRed(image,n) |
| 6702 | -GetPixelRed(image,pixels)+m))/ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6703 | ((ssize_t) (m*2)) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6704 | +GetPixelRed(image,pixels)))),q); |
| 6705 | SetPixelGreen(large_image,((QM) (((ssize_t) |
| 6706 | (2*i*(GetPixelGreen(image,n) |
| 6707 | -GetPixelGreen(image,pixels)+m))/ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6708 | ((ssize_t) (m*2)) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6709 | +GetPixelGreen(image,pixels)))),q); |
| 6710 | SetPixelBlue(large_image,((QM) (((ssize_t) |
| 6711 | (2*i*(GetPixelBlue(image,n) |
| 6712 | -GetPixelBlue(image,pixels)+m))/ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6713 | ((ssize_t) (m*2)) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6714 | +GetPixelBlue(image,pixels)))),q); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6715 | |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 6716 | if (image->alpha_trait != UndefinedPixelTrait) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6717 | SetPixelAlpha(large_image, ((QM) (((ssize_t) |
| 6718 | (2*i*(GetPixelAlpha(image,n) |
| 6719 | -GetPixelAlpha(image,pixels)+m)) |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6720 | /((ssize_t) (m*2))+ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6721 | GetPixelAlpha(image,pixels)))),q); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6722 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6723 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6724 | if (magn_methy == 4) |
| 6725 | { |
| 6726 | /* Replicate nearest */ |
| 6727 | if (i <= ((m+1) << 1)) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6728 | SetPixelAlpha(large_image,GetPixelAlpha(image, |
| 6729 | pixels),q); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6730 | else |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6731 | SetPixelAlpha(large_image,GetPixelAlpha(image, |
| 6732 | n),q); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6733 | } |
| 6734 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6735 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6736 | else /* if (magn_methy == 3 || magn_methy == 5) */ |
| 6737 | { |
| 6738 | /* Replicate nearest */ |
| 6739 | if (i <= ((m+1) << 1)) |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6740 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6741 | SetPixelRed(large_image,GetPixelRed(image, |
| 6742 | pixels),q); |
| 6743 | SetPixelGreen(large_image,GetPixelGreen(image, |
| 6744 | pixels),q); |
| 6745 | SetPixelBlue(large_image,GetPixelBlue(image, |
| 6746 | pixels),q); |
| 6747 | SetPixelAlpha(large_image,GetPixelAlpha(image, |
| 6748 | pixels),q); |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6749 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6750 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6751 | else |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6752 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6753 | SetPixelRed(large_image,GetPixelRed(image,n),q); |
| 6754 | SetPixelGreen(large_image,GetPixelGreen(image,n), |
| 6755 | q); |
| 6756 | SetPixelBlue(large_image,GetPixelBlue(image,n), |
| 6757 | q); |
| 6758 | SetPixelAlpha(large_image,GetPixelAlpha(image,n), |
| 6759 | q); |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6760 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6761 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6762 | if (magn_methy == 5) |
| 6763 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6764 | SetPixelAlpha(large_image,(QM) (((ssize_t) (2*i* |
| 6765 | (GetPixelAlpha(image,n) |
| 6766 | -GetPixelAlpha(image,pixels)) |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6767 | +m))/((ssize_t) (m*2)) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6768 | +GetPixelAlpha(image,pixels)),q); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6769 | } |
| 6770 | } |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6771 | n+=GetPixelChannels(image); |
| 6772 | q+=GetPixelChannels(large_image); |
| 6773 | pixels+=GetPixelChannels(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6774 | } /* x */ |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6775 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6776 | if (SyncAuthenticPixels(large_image,exception) == 0) |
| 6777 | break; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6778 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6779 | } /* i */ |
| 6780 | } /* y */ |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6781 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6782 | prev=(Quantum *) RelinquishMagickMemory(prev); |
| 6783 | next=(Quantum *) RelinquishMagickMemory(next); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6784 | |
| 6785 | length=image->columns; |
| 6786 | |
| 6787 | if (logging != MagickFalse) |
| 6788 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 6789 | " Delete original image"); |
| 6790 | |
| 6791 | DeleteImageFromList(&image); |
| 6792 | |
| 6793 | image=large_image; |
| 6794 | |
| 6795 | mng_info->image=image; |
| 6796 | |
| 6797 | /* magnify the columns */ |
| 6798 | if (logging != MagickFalse) |
| 6799 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 6800 | " Magnify the columns to %.20g",(double) image->columns); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6801 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 6802 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6803 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6804 | register Quantum |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6805 | *pixels; |
| 6806 | |
| 6807 | q=GetAuthenticPixels(image,0,y,image->columns,1,exception); |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6808 | pixels=q+(image->columns-length)*GetPixelChannels(image); |
| 6809 | n=pixels+GetPixelChannels(image); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6810 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 6811 | for (x=(ssize_t) (image->columns-length); |
| 6812 | x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6813 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6814 | /* To do: Rewrite using Get/Set***PixelChannel() */ |
glennrp | 7c7b315 | 2011-04-26 04:01:27 +0000 | [diff] [blame] | 6815 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 6816 | if (x == (ssize_t) (image->columns-length)) |
| 6817 | m=(ssize_t) mng_info->magn_ml; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6818 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 6819 | else if (magn_methx > 1 && x == (ssize_t) image->columns-2) |
| 6820 | m=(ssize_t) mng_info->magn_mr; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6821 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 6822 | else if (magn_methx <= 1 && x == (ssize_t) image->columns-1) |
| 6823 | m=(ssize_t) mng_info->magn_mr; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6824 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 6825 | else if (magn_methx > 1 && x == (ssize_t) image->columns-1) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6826 | m=1; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6827 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6828 | else |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 6829 | m=(ssize_t) mng_info->magn_mx; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6830 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6831 | for (i=0; i < m; i++) |
| 6832 | { |
| 6833 | if (magn_methx <= 1) |
| 6834 | { |
| 6835 | /* replicate previous */ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6836 | SetPixelRed(image,GetPixelRed(image,pixels),q); |
| 6837 | SetPixelGreen(image,GetPixelGreen(image,pixels),q); |
| 6838 | SetPixelBlue(image,GetPixelBlue(image,pixels),q); |
| 6839 | SetPixelAlpha(image,GetPixelAlpha(image,pixels),q); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6840 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6841 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6842 | else if (magn_methx == 2 || magn_methx == 4) |
| 6843 | { |
| 6844 | if (i == 0) |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6845 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6846 | SetPixelRed(image,GetPixelRed(image,pixels),q); |
| 6847 | SetPixelGreen(image,GetPixelGreen(image,pixels),q); |
| 6848 | SetPixelBlue(image,GetPixelBlue(image,pixels),q); |
| 6849 | SetPixelAlpha(image,GetPixelAlpha(image,pixels),q); |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6850 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6851 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6852 | /* To do: Rewrite using Get/Set***PixelChannel() */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6853 | else |
| 6854 | { |
| 6855 | /* Interpolate */ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6856 | SetPixelRed(image,(QM) ((2*i*( |
| 6857 | GetPixelRed(image,n) |
| 6858 | -GetPixelRed(image,pixels))+m) |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6859 | /((ssize_t) (m*2))+ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6860 | GetPixelRed(image,pixels)),q); |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6861 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6862 | SetPixelGreen(image,(QM) ((2*i*( |
| 6863 | GetPixelGreen(image,n) |
| 6864 | -GetPixelGreen(image,pixels))+m) |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6865 | /((ssize_t) (m*2))+ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6866 | GetPixelGreen(image,pixels)),q); |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6867 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6868 | SetPixelBlue(image,(QM) ((2*i*( |
| 6869 | GetPixelBlue(image,n) |
| 6870 | -GetPixelBlue(image,pixels))+m) |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6871 | /((ssize_t) (m*2))+ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6872 | GetPixelBlue(image,pixels)),q); |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 6873 | if (image->alpha_trait != UndefinedPixelTrait) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6874 | SetPixelAlpha(image,(QM) ((2*i*( |
| 6875 | GetPixelAlpha(image,n) |
| 6876 | -GetPixelAlpha(image,pixels))+m) |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6877 | /((ssize_t) (m*2))+ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6878 | GetPixelAlpha(image,pixels)),q); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6879 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6880 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6881 | if (magn_methx == 4) |
| 6882 | { |
| 6883 | /* Replicate nearest */ |
| 6884 | if (i <= ((m+1) << 1)) |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6885 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6886 | SetPixelAlpha(image, |
| 6887 | GetPixelAlpha(image,pixels)+0,q); |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6888 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6889 | else |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6890 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6891 | SetPixelAlpha(image, |
| 6892 | GetPixelAlpha(image,n)+0,q); |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6893 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6894 | } |
| 6895 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6896 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6897 | else /* if (magn_methx == 3 || magn_methx == 5) */ |
| 6898 | { |
| 6899 | /* Replicate nearest */ |
| 6900 | if (i <= ((m+1) << 1)) |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6901 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6902 | SetPixelRed(image,GetPixelRed(image,pixels),q); |
| 6903 | SetPixelGreen(image,GetPixelGreen(image,pixels),q); |
| 6904 | SetPixelBlue(image,GetPixelBlue(image,pixels),q); |
| 6905 | SetPixelAlpha(image,GetPixelAlpha(image,pixels),q); |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6906 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6907 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6908 | else |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6909 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6910 | SetPixelRed(image,GetPixelRed(image,n),q); |
| 6911 | SetPixelGreen(image,GetPixelGreen(image,n),q); |
| 6912 | SetPixelBlue(image,GetPixelBlue(image,n),q); |
| 6913 | SetPixelAlpha(image,GetPixelAlpha(image,n),q); |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6914 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6915 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6916 | if (magn_methx == 5) |
| 6917 | { |
| 6918 | /* Interpolate */ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6919 | SetPixelAlpha(image, |
| 6920 | (QM) ((2*i*( GetPixelAlpha(image,n) |
| 6921 | -GetPixelAlpha(image,pixels))+m)/ |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 6922 | ((ssize_t) (m*2)) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6923 | +GetPixelAlpha(image,pixels)),q); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6924 | } |
| 6925 | } |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6926 | q+=GetPixelChannels(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6927 | } |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6928 | n+=GetPixelChannels(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6929 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6930 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6931 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 6932 | break; |
| 6933 | } |
glennrp | 3faa9a3 | 2011-04-23 14:00:25 +0000 | [diff] [blame] | 6934 | #if (MAGICKCORE_QUANTUM_DEPTH > 16) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6935 | if (magn_methx != 1 || magn_methy != 1) |
| 6936 | { |
| 6937 | /* |
| 6938 | Rescale pixels to Quantum |
| 6939 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 6940 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6941 | { |
| 6942 | q=GetAuthenticPixels(image,0,y,image->columns,1,exception); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6943 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 6944 | for (x=(ssize_t) image->columns-1; x >= 0; x--) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6945 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 6946 | SetPixelRed(image,ScaleShortToQuantum( |
| 6947 | GetPixelRed(image,q)),q); |
| 6948 | SetPixelGreen(image,ScaleShortToQuantum( |
| 6949 | GetPixelGreen(image,q)),q); |
| 6950 | SetPixelBlue(image,ScaleShortToQuantum( |
| 6951 | GetPixelBlue(image,q)),q); |
| 6952 | SetPixelAlpha(image,ScaleShortToQuantum( |
| 6953 | GetPixelAlpha(image,q)),q); |
| 6954 | q+=GetPixelChannels(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6955 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6956 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6957 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 6958 | break; |
| 6959 | } |
| 6960 | } |
| 6961 | #endif |
| 6962 | if (logging != MagickFalse) |
| 6963 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 6964 | " Finished MAGN processing"); |
| 6965 | } |
| 6966 | } |
| 6967 | |
| 6968 | /* |
| 6969 | Crop_box is with respect to the upper left corner of the MNG. |
| 6970 | */ |
| 6971 | crop_box.left=mng_info->image_box.left+mng_info->x_off[object_id]; |
| 6972 | crop_box.right=mng_info->image_box.right+mng_info->x_off[object_id]; |
| 6973 | crop_box.top=mng_info->image_box.top+mng_info->y_off[object_id]; |
| 6974 | crop_box.bottom=mng_info->image_box.bottom+mng_info->y_off[object_id]; |
| 6975 | crop_box=mng_minimum_box(crop_box,mng_info->clip); |
| 6976 | crop_box=mng_minimum_box(crop_box,mng_info->frame); |
| 6977 | crop_box=mng_minimum_box(crop_box,mng_info->object_clip[object_id]); |
| 6978 | if ((crop_box.left != (mng_info->image_box.left |
| 6979 | +mng_info->x_off[object_id])) || |
| 6980 | (crop_box.right != (mng_info->image_box.right |
| 6981 | +mng_info->x_off[object_id])) || |
| 6982 | (crop_box.top != (mng_info->image_box.top |
| 6983 | +mng_info->y_off[object_id])) || |
| 6984 | (crop_box.bottom != (mng_info->image_box.bottom |
| 6985 | +mng_info->y_off[object_id]))) |
| 6986 | { |
| 6987 | if (logging != MagickFalse) |
| 6988 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 6989 | " Crop the PNG image"); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 6990 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 6991 | if ((crop_box.left < crop_box.right) && |
| 6992 | (crop_box.top < crop_box.bottom)) |
| 6993 | { |
| 6994 | Image |
| 6995 | *im; |
| 6996 | |
| 6997 | RectangleInfo |
| 6998 | crop_info; |
| 6999 | |
| 7000 | /* |
| 7001 | Crop_info is with respect to the upper left corner of |
| 7002 | the image. |
| 7003 | */ |
| 7004 | crop_info.x=(crop_box.left-mng_info->x_off[object_id]); |
| 7005 | crop_info.y=(crop_box.top-mng_info->y_off[object_id]); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 7006 | crop_info.width=(size_t) (crop_box.right-crop_box.left); |
| 7007 | crop_info.height=(size_t) (crop_box.bottom-crop_box.top); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7008 | image->page.width=image->columns; |
| 7009 | image->page.height=image->rows; |
| 7010 | image->page.x=0; |
| 7011 | image->page.y=0; |
| 7012 | im=CropImage(image,&crop_info,exception); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7013 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7014 | if (im != (Image *) NULL) |
| 7015 | { |
| 7016 | image->columns=im->columns; |
| 7017 | image->rows=im->rows; |
| 7018 | im=DestroyImage(im); |
| 7019 | image->page.width=image->columns; |
| 7020 | image->page.height=image->rows; |
| 7021 | image->page.x=crop_box.left; |
| 7022 | image->page.y=crop_box.top; |
| 7023 | } |
| 7024 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7025 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7026 | else |
| 7027 | { |
| 7028 | /* |
| 7029 | No pixels in crop area. The MNG spec still requires |
| 7030 | a layer, though, so make a single transparent pixel in |
| 7031 | the top left corner. |
| 7032 | */ |
| 7033 | image->columns=1; |
| 7034 | image->rows=1; |
| 7035 | image->colors=2; |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 7036 | (void) SetImageBackgroundColor(image,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7037 | image->page.width=1; |
| 7038 | image->page.height=1; |
| 7039 | image->page.x=0; |
| 7040 | image->page.y=0; |
| 7041 | } |
| 7042 | } |
| 7043 | #ifndef PNG_READ_EMPTY_PLTE_SUPPORTED |
| 7044 | image=mng_info->image; |
| 7045 | #endif |
| 7046 | } |
| 7047 | |
glennrp | 2b013e4 | 2010-11-24 16:55:50 +0000 | [diff] [blame] | 7048 | #if (MAGICKCORE_QUANTUM_DEPTH > 16) |
| 7049 | /* PNG does not handle depths greater than 16 so reduce it even |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 7050 | * if lossy. |
glennrp | 2b013e4 | 2010-11-24 16:55:50 +0000 | [diff] [blame] | 7051 | */ |
| 7052 | if (image->depth > 16) |
| 7053 | image->depth=16; |
| 7054 | #endif |
| 7055 | |
glennrp | 3faa9a3 | 2011-04-23 14:00:25 +0000 | [diff] [blame] | 7056 | #if (MAGICKCORE_QUANTUM_DEPTH > 8) |
glennrp | cc5d45b | 2012-01-06 04:06:10 +0000 | [diff] [blame] | 7057 | if (image->depth > 8) |
| 7058 | { |
| 7059 | /* To do: fill low byte properly */ |
| 7060 | image->depth=16; |
| 7061 | } |
| 7062 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 7063 | if (LosslessReduceDepthOK(image,exception) != MagickFalse) |
glennrp | 8640fb5 | 2010-11-23 15:48:26 +0000 | [diff] [blame] | 7064 | image->depth = 8; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7065 | #endif |
glennrp | d6afd54 | 2010-11-19 01:53:05 +0000 | [diff] [blame] | 7066 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7067 | if (image_info->number_scenes != 0) |
| 7068 | { |
| 7069 | if (mng_info->scenes_found > |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 7070 | (ssize_t) (image_info->first_scene+image_info->number_scenes)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7071 | break; |
| 7072 | } |
glennrp | d6afd54 | 2010-11-19 01:53:05 +0000 | [diff] [blame] | 7073 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7074 | if (logging != MagickFalse) |
| 7075 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 7076 | " Finished reading image datastream."); |
glennrp | d6afd54 | 2010-11-19 01:53:05 +0000 | [diff] [blame] | 7077 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7078 | } while (LocaleCompare(image_info->magick,"MNG") == 0); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7079 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7080 | (void) CloseBlob(image); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7081 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7082 | if (logging != MagickFalse) |
| 7083 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 7084 | " Finished reading all image datastreams."); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7085 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7086 | #if defined(MNG_INSERT_LAYERS) |
| 7087 | if (insert_layers && !mng_info->image_found && (mng_info->mng_width) && |
| 7088 | (mng_info->mng_height)) |
| 7089 | { |
| 7090 | /* |
| 7091 | Insert a background layer if nothing else was found. |
| 7092 | */ |
| 7093 | if (logging != MagickFalse) |
| 7094 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 7095 | " No images found. Inserting a background layer."); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 7096 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 7097 | if (GetAuthenticPixelQueue(image) != (Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7098 | { |
| 7099 | /* |
| 7100 | Allocate next image structure. |
| 7101 | */ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 7102 | AcquireNextImage(image_info,image,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7103 | if (GetNextImageInList(image) == (Image *) NULL) |
| 7104 | { |
| 7105 | image=DestroyImageList(image); |
| 7106 | MngInfoFreeStruct(mng_info,&have_mng_structure); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7107 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7108 | if (logging != MagickFalse) |
| 7109 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 7110 | " Allocation failed, returning NULL."); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7111 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7112 | return((Image *) NULL); |
| 7113 | } |
| 7114 | image=SyncNextImageInList(image); |
| 7115 | } |
| 7116 | image->columns=mng_info->mng_width; |
| 7117 | image->rows=mng_info->mng_height; |
| 7118 | image->page.width=mng_info->mng_width; |
| 7119 | image->page.height=mng_info->mng_height; |
| 7120 | image->page.x=0; |
| 7121 | image->page.y=0; |
| 7122 | image->background_color=mng_background_color; |
cristy | 8a46d82 | 2012-08-28 23:32:39 +0000 | [diff] [blame] | 7123 | image->alpha_trait=UndefinedPixelTrait; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 7124 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7125 | if (image_info->ping == MagickFalse) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 7126 | (void) SetImageBackgroundColor(image,exception); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 7127 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7128 | mng_info->image_found++; |
| 7129 | } |
| 7130 | #endif |
| 7131 | image->iterations=mng_iterations; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 7132 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7133 | if (mng_iterations == 1) |
| 7134 | image->start_loop=MagickTrue; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 7135 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7136 | while (GetPreviousImageInList(image) != (Image *) NULL) |
| 7137 | { |
| 7138 | image_count++; |
| 7139 | if (image_count > 10*mng_info->image_found) |
| 7140 | { |
| 7141 | if (logging != MagickFalse) |
| 7142 | (void) LogMagickEvent(CoderEvent,GetMagickModule()," No beginning"); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7143 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 7144 | (void) ThrowMagickException(exception,GetMagickModule(), |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7145 | CoderError,"Linked list is corrupted, beginning of list not found", |
| 7146 | "`%s'",image_info->filename); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7147 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7148 | return((Image *) NULL); |
| 7149 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 7150 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7151 | image=GetPreviousImageInList(image); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 7152 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7153 | if (GetNextImageInList(image) == (Image *) NULL) |
| 7154 | { |
| 7155 | if (logging != MagickFalse) |
| 7156 | (void) LogMagickEvent(CoderEvent,GetMagickModule()," Corrupt list"); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7157 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 7158 | (void) ThrowMagickException(exception,GetMagickModule(), |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7159 | CoderError,"Linked list is corrupted; next_image is NULL","`%s'", |
| 7160 | image_info->filename); |
| 7161 | } |
| 7162 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7163 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7164 | if (mng_info->ticks_per_second && mng_info->image_found > 1 && |
| 7165 | GetNextImageInList(image) == |
| 7166 | (Image *) NULL) |
| 7167 | { |
| 7168 | if (logging != MagickFalse) |
| 7169 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 7170 | " First image null"); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7171 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 7172 | (void) ThrowMagickException(exception,GetMagickModule(), |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7173 | CoderError,"image->next for first image is NULL but shouldn't be.", |
| 7174 | "`%s'",image_info->filename); |
| 7175 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7176 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7177 | if (mng_info->image_found == 0) |
| 7178 | { |
| 7179 | if (logging != MagickFalse) |
| 7180 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 7181 | " No visible images found."); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7182 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 7183 | (void) ThrowMagickException(exception,GetMagickModule(), |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7184 | CoderError,"No visible images in file","`%s'",image_info->filename); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7185 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7186 | if (image != (Image *) NULL) |
| 7187 | image=DestroyImageList(image); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7188 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7189 | MngInfoFreeStruct(mng_info,&have_mng_structure); |
| 7190 | return((Image *) NULL); |
| 7191 | } |
| 7192 | |
| 7193 | if (mng_info->ticks_per_second) |
| 7194 | final_delay=1UL*MagickMax(image->ticks_per_second,1L)* |
| 7195 | final_delay/mng_info->ticks_per_second; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 7196 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7197 | else |
| 7198 | image->start_loop=MagickTrue; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 7199 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7200 | /* Find final nonzero image delay */ |
| 7201 | final_image_delay=0; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 7202 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7203 | while (GetNextImageInList(image) != (Image *) NULL) |
| 7204 | { |
| 7205 | if (image->delay) |
| 7206 | final_image_delay=image->delay; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7207 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7208 | image=GetNextImageInList(image); |
| 7209 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 7210 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7211 | if (final_delay < final_image_delay) |
| 7212 | final_delay=final_image_delay; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 7213 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7214 | image->delay=final_delay; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 7215 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7216 | if (logging != MagickFalse) |
| 7217 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 7218 | " image->delay=%.20g, final_delay=%.20g",(double) image->delay, |
| 7219 | (double) final_delay); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 7220 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7221 | if (logging != MagickFalse) |
| 7222 | { |
| 7223 | int |
| 7224 | scene; |
| 7225 | |
| 7226 | scene=0; |
| 7227 | image=GetFirstImageInList(image); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7228 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7229 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 7230 | " Before coalesce:"); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7231 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7232 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 7233 | " scene 0 delay=%.20g",(double) image->delay); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7234 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7235 | while (GetNextImageInList(image) != (Image *) NULL) |
| 7236 | { |
| 7237 | image=GetNextImageInList(image); |
| 7238 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 7239 | " scene %.20g delay=%.20g",(double) scene++,(double) image->delay); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7240 | } |
| 7241 | } |
| 7242 | |
| 7243 | image=GetFirstImageInList(image); |
| 7244 | #ifdef MNG_COALESCE_LAYERS |
| 7245 | if (insert_layers) |
| 7246 | { |
| 7247 | Image |
| 7248 | *next_image, |
| 7249 | *next; |
| 7250 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 7251 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7252 | scene; |
| 7253 | |
| 7254 | if (logging != MagickFalse) |
| 7255 | (void) LogMagickEvent(CoderEvent,GetMagickModule()," Coalesce Images"); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7256 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7257 | scene=image->scene; |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 7258 | next_image=CoalesceImages(image,exception); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7259 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7260 | if (next_image == (Image *) NULL) |
| 7261 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7262 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7263 | image=DestroyImageList(image); |
| 7264 | image=next_image; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7265 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7266 | for (next=image; next != (Image *) NULL; next=next_image) |
| 7267 | { |
| 7268 | next->page.width=mng_info->mng_width; |
| 7269 | next->page.height=mng_info->mng_height; |
| 7270 | next->page.x=0; |
| 7271 | next->page.y=0; |
| 7272 | next->scene=scene++; |
| 7273 | next_image=GetNextImageInList(next); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7274 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7275 | if (next_image == (Image *) NULL) |
| 7276 | break; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7277 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7278 | if (next->delay == 0) |
| 7279 | { |
| 7280 | scene--; |
| 7281 | next_image->previous=GetPreviousImageInList(next); |
| 7282 | if (GetPreviousImageInList(next) == (Image *) NULL) |
| 7283 | image=next_image; |
| 7284 | else |
| 7285 | next->previous->next=next_image; |
| 7286 | next=DestroyImage(next); |
| 7287 | } |
| 7288 | } |
| 7289 | } |
| 7290 | #endif |
| 7291 | |
| 7292 | while (GetNextImageInList(image) != (Image *) NULL) |
| 7293 | image=GetNextImageInList(image); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7294 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7295 | image->dispose=BackgroundDispose; |
| 7296 | |
| 7297 | if (logging != MagickFalse) |
| 7298 | { |
| 7299 | int |
| 7300 | scene; |
| 7301 | |
| 7302 | scene=0; |
| 7303 | image=GetFirstImageInList(image); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7304 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7305 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 7306 | " After coalesce:"); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7307 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7308 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 7309 | " scene 0 delay=%.20g dispose=%.20g",(double) image->delay, |
| 7310 | (double) image->dispose); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7311 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7312 | while (GetNextImageInList(image) != (Image *) NULL) |
cristy | f2faecf | 2010-05-28 19:19:36 +0000 | [diff] [blame] | 7313 | { |
| 7314 | image=GetNextImageInList(image); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7315 | |
cristy | f2faecf | 2010-05-28 19:19:36 +0000 | [diff] [blame] | 7316 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 7317 | " scene %.20g delay=%.20g dispose=%.20g",(double) scene++, |
| 7318 | (double) image->delay,(double) image->dispose); |
cristy | f2faecf | 2010-05-28 19:19:36 +0000 | [diff] [blame] | 7319 | } |
| 7320 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7321 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7322 | image=GetFirstImageInList(image); |
| 7323 | MngInfoFreeStruct(mng_info,&have_mng_structure); |
| 7324 | have_mng_structure=MagickFalse; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7325 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7326 | if (logging != MagickFalse) |
| 7327 | (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadMNGImage()"); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7328 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7329 | return(GetFirstImageInList(image)); |
| 7330 | } |
glennrp | 25c1e2b | 2010-03-25 01:39:56 +0000 | [diff] [blame] | 7331 | #else /* PNG_LIBPNG_VER > 10011 */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7332 | static Image *ReadPNGImage(const ImageInfo *image_info,ExceptionInfo *exception) |
| 7333 | { |
| 7334 | printf("Your PNG library is too old: You have libpng-%s\n", |
| 7335 | PNG_LIBPNG_VER_STRING); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7336 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7337 | (void) ThrowMagickException(exception,GetMagickModule(),CoderError, |
| 7338 | "PNG library is too old","`%s'",image_info->filename); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7339 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7340 | return(Image *) NULL; |
| 7341 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7342 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7343 | static Image *ReadMNGImage(const ImageInfo *image_info,ExceptionInfo *exception) |
| 7344 | { |
| 7345 | return(ReadPNGImage(image_info,exception)); |
| 7346 | } |
glennrp | 25c1e2b | 2010-03-25 01:39:56 +0000 | [diff] [blame] | 7347 | #endif /* PNG_LIBPNG_VER > 10011 */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7348 | #endif |
| 7349 | |
| 7350 | /* |
| 7351 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 7352 | % % |
| 7353 | % % |
| 7354 | % % |
| 7355 | % R e g i s t e r P N G I m a g e % |
| 7356 | % % |
| 7357 | % % |
| 7358 | % % |
| 7359 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 7360 | % |
| 7361 | % RegisterPNGImage() adds properties for the PNG image format to |
| 7362 | % the list of supported formats. The properties include the image format |
| 7363 | % tag, a method to read and/or write the format, whether the format |
| 7364 | % supports the saving of more than one frame to the same file or blob, |
| 7365 | % whether the format supports native in-memory I/O, and a brief |
| 7366 | % description of the format. |
| 7367 | % |
| 7368 | % The format of the RegisterPNGImage method is: |
| 7369 | % |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 7370 | % size_t RegisterPNGImage(void) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7371 | % |
| 7372 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 7373 | ModuleExport size_t RegisterPNGImage(void) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7374 | { |
| 7375 | char |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 7376 | version[MagickPathExtent]; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7377 | |
| 7378 | MagickInfo |
| 7379 | *entry; |
| 7380 | |
| 7381 | static const char |
| 7382 | *PNGNote= |
| 7383 | { |
| 7384 | "See http://www.libpng.org/ for details about the PNG format." |
| 7385 | }, |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7386 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7387 | *JNGNote= |
| 7388 | { |
| 7389 | "See http://www.libpng.org/pub/mng/ for details about the JNG\n" |
| 7390 | "format." |
| 7391 | }, |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7392 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7393 | *MNGNote= |
| 7394 | { |
| 7395 | "See http://www.libpng.org/pub/mng/ for details about the MNG\n" |
| 7396 | "format." |
| 7397 | }; |
| 7398 | |
| 7399 | *version='\0'; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7400 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7401 | #if defined(PNG_LIBPNG_VER_STRING) |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 7402 | (void) ConcatenateMagickString(version,"libpng ",MagickPathExtent); |
| 7403 | (void) ConcatenateMagickString(version,PNG_LIBPNG_VER_STRING,MagickPathExtent); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7404 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7405 | if (LocaleCompare(PNG_LIBPNG_VER_STRING,png_get_header_ver(NULL)) != 0) |
| 7406 | { |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 7407 | (void) ConcatenateMagickString(version,",",MagickPathExtent); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7408 | (void) ConcatenateMagickString(version,png_get_libpng_ver(NULL), |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 7409 | MagickPathExtent); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7410 | } |
| 7411 | #endif |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7412 | |
dirk | 06b627a | 2015-04-06 18:59:17 +0000 | [diff] [blame] | 7413 | entry=AcquireMagickInfo("PNG","MNG","Multiple-image Network Graphics"); |
dirk | 08e9a11 | 2015-02-22 01:51:41 +0000 | [diff] [blame] | 7414 | entry->flags|=CoderSeekableStreamFlag; /* To do: eliminate this. */ |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7415 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7416 | #if defined(MAGICKCORE_PNG_DELEGATE) |
| 7417 | entry->decoder=(DecodeImageHandler *) ReadMNGImage; |
| 7418 | entry->encoder=(EncodeImageHandler *) WriteMNGImage; |
| 7419 | #endif |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7420 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7421 | entry->magick=(IsImageFormatHandler *) IsMNG; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7422 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7423 | if (*version != '\0') |
| 7424 | entry->version=ConstantString(version); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7425 | |
glennrp | afc97b1 | 2013-08-10 00:39:01 +0000 | [diff] [blame] | 7426 | entry->mime_type=ConstantString("video/x-mng"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7427 | entry->note=ConstantString(MNGNote); |
| 7428 | (void) RegisterMagickInfo(entry); |
| 7429 | |
dirk | 06b627a | 2015-04-06 18:59:17 +0000 | [diff] [blame] | 7430 | entry=AcquireMagickInfo("PNG","PNG","Portable Network Graphics"); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7431 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7432 | #if defined(MAGICKCORE_PNG_DELEGATE) |
| 7433 | entry->decoder=(DecodeImageHandler *) ReadPNGImage; |
| 7434 | entry->encoder=(EncodeImageHandler *) WritePNGImage; |
| 7435 | #endif |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7436 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7437 | entry->magick=(IsImageFormatHandler *) IsPNG; |
dirk | 08e9a11 | 2015-02-22 01:51:41 +0000 | [diff] [blame] | 7438 | entry->flags^=CoderAdjoinFlag; |
cristy | d625c52 | 2013-08-09 11:45:57 +0000 | [diff] [blame] | 7439 | entry->mime_type=ConstantString("image/png"); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7440 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7441 | if (*version != '\0') |
| 7442 | entry->version=ConstantString(version); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7443 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7444 | entry->note=ConstantString(PNGNote); |
| 7445 | (void) RegisterMagickInfo(entry); |
| 7446 | |
dirk | 06b627a | 2015-04-06 18:59:17 +0000 | [diff] [blame] | 7447 | entry=AcquireMagickInfo("PNG","PNG8", |
| 7448 | "8-bit indexed with optional binary transparency"); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7449 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7450 | #if defined(MAGICKCORE_PNG_DELEGATE) |
| 7451 | entry->decoder=(DecodeImageHandler *) ReadPNGImage; |
| 7452 | entry->encoder=(EncodeImageHandler *) WritePNGImage; |
| 7453 | #endif |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7454 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7455 | entry->magick=(IsImageFormatHandler *) IsPNG; |
dirk | 08e9a11 | 2015-02-22 01:51:41 +0000 | [diff] [blame] | 7456 | entry->flags^=CoderAdjoinFlag; |
cristy | d625c52 | 2013-08-09 11:45:57 +0000 | [diff] [blame] | 7457 | entry->mime_type=ConstantString("image/png"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7458 | (void) RegisterMagickInfo(entry); |
| 7459 | |
dirk | 06b627a | 2015-04-06 18:59:17 +0000 | [diff] [blame] | 7460 | entry=AcquireMagickInfo("PNG","PNG24", |
| 7461 | "opaque or binary transparent 24-bit RGB"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7462 | *version='\0'; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7463 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7464 | #if defined(ZLIB_VERSION) |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 7465 | (void) ConcatenateMagickString(version,"zlib ",MagickPathExtent); |
| 7466 | (void) ConcatenateMagickString(version,ZLIB_VERSION,MagickPathExtent); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7467 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7468 | if (LocaleCompare(ZLIB_VERSION,zlib_version) != 0) |
| 7469 | { |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 7470 | (void) ConcatenateMagickString(version,",",MagickPathExtent); |
| 7471 | (void) ConcatenateMagickString(version,zlib_version,MagickPathExtent); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7472 | } |
| 7473 | #endif |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7474 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7475 | if (*version != '\0') |
| 7476 | entry->version=ConstantString(version); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7477 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7478 | #if defined(MAGICKCORE_PNG_DELEGATE) |
| 7479 | entry->decoder=(DecodeImageHandler *) ReadPNGImage; |
| 7480 | entry->encoder=(EncodeImageHandler *) WritePNGImage; |
| 7481 | #endif |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7482 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7483 | entry->magick=(IsImageFormatHandler *) IsPNG; |
dirk | 08e9a11 | 2015-02-22 01:51:41 +0000 | [diff] [blame] | 7484 | entry->flags^=CoderAdjoinFlag; |
cristy | d625c52 | 2013-08-09 11:45:57 +0000 | [diff] [blame] | 7485 | entry->mime_type=ConstantString("image/png"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7486 | (void) RegisterMagickInfo(entry); |
| 7487 | |
dirk | 06b627a | 2015-04-06 18:59:17 +0000 | [diff] [blame] | 7488 | entry=AcquireMagickInfo("PNG","PNG32","opaque or transparent 32-bit RGBA"); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7489 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7490 | #if defined(MAGICKCORE_PNG_DELEGATE) |
| 7491 | entry->decoder=(DecodeImageHandler *) ReadPNGImage; |
| 7492 | entry->encoder=(EncodeImageHandler *) WritePNGImage; |
| 7493 | #endif |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7494 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7495 | entry->magick=(IsImageFormatHandler *) IsPNG; |
dirk | 08e9a11 | 2015-02-22 01:51:41 +0000 | [diff] [blame] | 7496 | entry->flags^=CoderAdjoinFlag; |
cristy | d625c52 | 2013-08-09 11:45:57 +0000 | [diff] [blame] | 7497 | entry->mime_type=ConstantString("image/png"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7498 | (void) RegisterMagickInfo(entry); |
| 7499 | |
dirk | 06b627a | 2015-04-06 18:59:17 +0000 | [diff] [blame] | 7500 | entry=AcquireMagickInfo("PNG","PNG48", |
| 7501 | "opaque or binary transparent 48-bit RGB"); |
glennrp | fd164d2 | 2013-01-26 21:10:22 +0000 | [diff] [blame] | 7502 | |
| 7503 | #if defined(MAGICKCORE_PNG_DELEGATE) |
| 7504 | entry->decoder=(DecodeImageHandler *) ReadPNGImage; |
| 7505 | entry->encoder=(EncodeImageHandler *) WritePNGImage; |
| 7506 | #endif |
| 7507 | |
| 7508 | entry->magick=(IsImageFormatHandler *) IsPNG; |
dirk | 08e9a11 | 2015-02-22 01:51:41 +0000 | [diff] [blame] | 7509 | entry->flags^=CoderAdjoinFlag; |
cristy | d625c52 | 2013-08-09 11:45:57 +0000 | [diff] [blame] | 7510 | entry->mime_type=ConstantString("image/png"); |
glennrp | fd164d2 | 2013-01-26 21:10:22 +0000 | [diff] [blame] | 7511 | (void) RegisterMagickInfo(entry); |
| 7512 | |
dirk | 06b627a | 2015-04-06 18:59:17 +0000 | [diff] [blame] | 7513 | entry=AcquireMagickInfo("PNG","PNG64","opaque or transparent 64-bit RGBA"); |
glennrp | fd164d2 | 2013-01-26 21:10:22 +0000 | [diff] [blame] | 7514 | |
| 7515 | #if defined(MAGICKCORE_PNG_DELEGATE) |
| 7516 | entry->decoder=(DecodeImageHandler *) ReadPNGImage; |
| 7517 | entry->encoder=(EncodeImageHandler *) WritePNGImage; |
| 7518 | #endif |
| 7519 | |
| 7520 | entry->magick=(IsImageFormatHandler *) IsPNG; |
dirk | 08e9a11 | 2015-02-22 01:51:41 +0000 | [diff] [blame] | 7521 | entry->flags^=CoderAdjoinFlag; |
cristy | d625c52 | 2013-08-09 11:45:57 +0000 | [diff] [blame] | 7522 | entry->mime_type=ConstantString("image/png"); |
glennrp | fd164d2 | 2013-01-26 21:10:22 +0000 | [diff] [blame] | 7523 | (void) RegisterMagickInfo(entry); |
| 7524 | |
dirk | 06b627a | 2015-04-06 18:59:17 +0000 | [diff] [blame] | 7525 | entry=AcquireMagickInfo("PNG","PNG00", |
glennrp | 698aab6 | 2015-07-22 19:27:21 +0000 | [diff] [blame] | 7526 | "PNG inheriting bit-depth, color-type from original, if possible"); |
dirk | 06b627a | 2015-04-06 18:59:17 +0000 | [diff] [blame] | 7527 | |
| 7528 | #if defined(MAGICKCORE_PNG_DELEGATE) |
| 7529 | entry->decoder=(DecodeImageHandler *) ReadPNGImage; |
| 7530 | entry->encoder=(EncodeImageHandler *) WritePNGImage; |
| 7531 | #endif |
| 7532 | |
| 7533 | entry->magick=(IsImageFormatHandler *) IsPNG; |
| 7534 | entry->flags^=CoderAdjoinFlag; |
cristy | d625c52 | 2013-08-09 11:45:57 +0000 | [diff] [blame] | 7535 | entry->mime_type=ConstantString("image/png"); |
glennrp | 5830fbc | 2013-01-27 06:11:45 +0000 | [diff] [blame] | 7536 | (void) RegisterMagickInfo(entry); |
| 7537 | |
dirk | 06b627a | 2015-04-06 18:59:17 +0000 | [diff] [blame] | 7538 | entry=AcquireMagickInfo("PNG","JNG","JPEG Network Graphics"); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7539 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7540 | #if defined(JNG_SUPPORTED) |
| 7541 | #if defined(MAGICKCORE_PNG_DELEGATE) |
| 7542 | entry->decoder=(DecodeImageHandler *) ReadJNGImage; |
| 7543 | entry->encoder=(EncodeImageHandler *) WriteJNGImage; |
| 7544 | #endif |
| 7545 | #endif |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7546 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7547 | entry->magick=(IsImageFormatHandler *) IsJNG; |
dirk | 08e9a11 | 2015-02-22 01:51:41 +0000 | [diff] [blame] | 7548 | entry->flags^=CoderAdjoinFlag; |
glennrp | 7fee329 | 2013-08-09 15:25:52 +0000 | [diff] [blame] | 7549 | entry->mime_type=ConstantString("image/x-jng"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7550 | entry->note=ConstantString(JNGNote); |
| 7551 | (void) RegisterMagickInfo(entry); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7552 | |
glennrp | 868fff3 | 2014-03-16 22:09:06 +0000 | [diff] [blame] | 7553 | #ifdef IMPNG_SETJMP_NOT_THREAD_SAFE |
cristy | 3d162a9 | 2014-02-16 14:05:06 +0000 | [diff] [blame] | 7554 | ping_semaphore=AcquireSemaphoreInfo(); |
cristy | 18b1744 | 2009-10-25 18:36:48 +0000 | [diff] [blame] | 7555 | #endif |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7556 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7557 | return(MagickImageCoderSignature); |
| 7558 | } |
| 7559 | |
| 7560 | /* |
| 7561 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 7562 | % % |
| 7563 | % % |
| 7564 | % % |
| 7565 | % U n r e g i s t e r P N G I m a g e % |
| 7566 | % % |
| 7567 | % % |
| 7568 | % % |
| 7569 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 7570 | % |
| 7571 | % UnregisterPNGImage() removes format registrations made by the |
| 7572 | % PNG module from the list of supported formats. |
| 7573 | % |
| 7574 | % The format of the UnregisterPNGImage method is: |
| 7575 | % |
| 7576 | % UnregisterPNGImage(void) |
| 7577 | % |
| 7578 | */ |
| 7579 | ModuleExport void UnregisterPNGImage(void) |
| 7580 | { |
| 7581 | (void) UnregisterMagickInfo("MNG"); |
| 7582 | (void) UnregisterMagickInfo("PNG"); |
| 7583 | (void) UnregisterMagickInfo("PNG8"); |
| 7584 | (void) UnregisterMagickInfo("PNG24"); |
| 7585 | (void) UnregisterMagickInfo("PNG32"); |
glennrp | fd164d2 | 2013-01-26 21:10:22 +0000 | [diff] [blame] | 7586 | (void) UnregisterMagickInfo("PNG48"); |
| 7587 | (void) UnregisterMagickInfo("PNG64"); |
glennrp | 5830fbc | 2013-01-27 06:11:45 +0000 | [diff] [blame] | 7588 | (void) UnregisterMagickInfo("PNG00"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7589 | (void) UnregisterMagickInfo("JNG"); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7590 | |
glennrp | 868fff3 | 2014-03-16 22:09:06 +0000 | [diff] [blame] | 7591 | #ifdef IMPNG_SETJMP_NOT_THREAD_SAFE |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 7592 | if (ping_semaphore != (SemaphoreInfo *) NULL) |
cristy | 3d162a9 | 2014-02-16 14:05:06 +0000 | [diff] [blame] | 7593 | RelinquishSemaphoreInfo(&ping_semaphore); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7594 | #endif |
| 7595 | } |
| 7596 | |
| 7597 | #if defined(MAGICKCORE_PNG_DELEGATE) |
glennrp | 25c1e2b | 2010-03-25 01:39:56 +0000 | [diff] [blame] | 7598 | #if PNG_LIBPNG_VER > 10011 |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7599 | /* |
| 7600 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 7601 | % % |
| 7602 | % % |
| 7603 | % % |
| 7604 | % W r i t e M N G I m a g e % |
| 7605 | % % |
| 7606 | % % |
| 7607 | % % |
| 7608 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 7609 | % |
| 7610 | % WriteMNGImage() writes an image in the Portable Network Graphics |
| 7611 | % Group's "Multiple-image Network Graphics" encoded image format. |
| 7612 | % |
| 7613 | % MNG support written by Glenn Randers-Pehrson, glennrp@image... |
| 7614 | % |
| 7615 | % The format of the WriteMNGImage method is: |
| 7616 | % |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 7617 | % MagickBooleanType WriteMNGImage(const ImageInfo *image_info, |
| 7618 | % Image *image,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7619 | % |
| 7620 | % A description of each parameter follows. |
| 7621 | % |
| 7622 | % o image_info: the image info. |
| 7623 | % |
| 7624 | % o image: The image. |
| 7625 | % |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 7626 | % o exception: return any errors or warnings in this structure. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7627 | % |
| 7628 | % To do (as of version 5.5.2, November 26, 2002 -- glennrp -- see also |
| 7629 | % "To do" under ReadPNGImage): |
| 7630 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7631 | % Preserve all unknown and not-yet-handled known chunks found in input |
| 7632 | % PNG file and copy them into output PNG files according to the PNG |
| 7633 | % copying rules. |
| 7634 | % |
| 7635 | % Write the iCCP chunk at MNG level when (icc profile length > 0) |
| 7636 | % |
| 7637 | % Improve selection of color type (use indexed-colour or indexed-colour |
| 7638 | % with tRNS when 256 or fewer unique RGBA values are present). |
| 7639 | % |
| 7640 | % Figure out what to do with "dispose=<restore-to-previous>" (dispose == 3) |
| 7641 | % This will be complicated if we limit ourselves to generating MNG-LC |
| 7642 | % files. For now we ignore disposal method 3 and simply overlay the next |
| 7643 | % image on it. |
| 7644 | % |
| 7645 | % Check for identical PLTE's or PLTE/tRNS combinations and use a |
| 7646 | % global MNG PLTE or PLTE/tRNS combination when appropriate. |
| 7647 | % [mostly done 15 June 1999 but still need to take care of tRNS] |
| 7648 | % |
| 7649 | % Check for identical sRGB and replace with a global sRGB (and remove |
| 7650 | % gAMA/cHRM if sRGB is found; check for identical gAMA/cHRM and |
| 7651 | % replace with global gAMA/cHRM (or with sRGB if appropriate; replace |
| 7652 | % local gAMA/cHRM with local sRGB if appropriate). |
| 7653 | % |
| 7654 | % Check for identical sBIT chunks and write global ones. |
| 7655 | % |
| 7656 | % Provide option to skip writing the signature tEXt chunks. |
| 7657 | % |
| 7658 | % Use signatures to detect identical objects and reuse the first |
| 7659 | % instance of such objects instead of writing duplicate objects. |
| 7660 | % |
| 7661 | % Use a smaller-than-32k value of compression window size when |
| 7662 | % appropriate. |
| 7663 | % |
| 7664 | % Encode JNG datastreams. Mostly done as of 5.5.2; need to write |
| 7665 | % ancillary text chunks and save profiles. |
| 7666 | % |
| 7667 | % Provide an option to force LC files (to ensure exact framing rate) |
| 7668 | % instead of VLC. |
| 7669 | % |
| 7670 | % Provide an option to force VLC files instead of LC, even when offsets |
| 7671 | % are present. This will involve expanding the embedded images with a |
| 7672 | % transparent region at the top and/or left. |
| 7673 | */ |
| 7674 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7675 | static void |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 7676 | Magick_png_write_raw_profile(const ImageInfo *image_info,png_struct *ping, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7677 | png_info *ping_info, unsigned char *profile_type, unsigned char |
| 7678 | *profile_description, unsigned char *profile_data, png_uint_32 length) |
| 7679 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7680 | png_textp |
| 7681 | text; |
| 7682 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 7683 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7684 | i; |
| 7685 | |
| 7686 | unsigned char |
| 7687 | *sp; |
| 7688 | |
| 7689 | png_charp |
| 7690 | dp; |
| 7691 | |
| 7692 | png_uint_32 |
| 7693 | allocated_length, |
| 7694 | description_length; |
| 7695 | |
| 7696 | unsigned char |
| 7697 | hex[16]={'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'}; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7698 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7699 | if (LocaleNCompare((char *) profile_type+1, "ng-chunk-",9) == 0) |
| 7700 | return; |
| 7701 | |
| 7702 | if (image_info->verbose) |
| 7703 | { |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 7704 | (void) printf("writing raw profile: type=%s, length=%.20g\n", |
| 7705 | (char *) profile_type, (double) length); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7706 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 7707 | |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 7708 | #if PNG_LIBPNG_VER >= 10400 |
cristy | a865ccd | 2012-07-28 00:33:10 +0000 | [diff] [blame] | 7709 | text=(png_textp) png_malloc(ping,(png_alloc_size_t) sizeof(png_text)); |
| 7710 | #else |
| 7711 | text=(png_textp) png_malloc(ping,(png_size_t) sizeof(png_text)); |
| 7712 | #endif |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7713 | description_length=(png_uint_32) strlen((const char *) profile_description); |
| 7714 | allocated_length=(png_uint_32) (length*2 + (length >> 5) + 20 |
| 7715 | + description_length); |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 7716 | #if PNG_LIBPNG_VER >= 10400 |
cristy | a865ccd | 2012-07-28 00:33:10 +0000 | [diff] [blame] | 7717 | text[0].text=(png_charp) png_malloc(ping, |
| 7718 | (png_alloc_size_t) allocated_length); |
| 7719 | text[0].key=(png_charp) png_malloc(ping, (png_alloc_size_t) 80); |
| 7720 | #else |
| 7721 | text[0].text=(png_charp) png_malloc(ping, (png_size_t) allocated_length); |
| 7722 | text[0].key=(png_charp) png_malloc(ping, (png_size_t) 80); |
| 7723 | #endif |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7724 | text[0].key[0]='\0'; |
| 7725 | (void) ConcatenateMagickString(text[0].key, |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 7726 | "Raw profile type ",MagickPathExtent); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7727 | (void) ConcatenateMagickString(text[0].key,(const char *) profile_type,62); |
| 7728 | sp=profile_data; |
| 7729 | dp=text[0].text; |
| 7730 | *dp++='\n'; |
| 7731 | (void) CopyMagickString(dp,(const char *) profile_description, |
| 7732 | allocated_length); |
| 7733 | dp+=description_length; |
| 7734 | *dp++='\n'; |
cristy | 3b6fd2e | 2011-05-20 12:53:50 +0000 | [diff] [blame] | 7735 | (void) FormatLocaleString(dp,allocated_length- |
cristy | f2faecf | 2010-05-28 19:19:36 +0000 | [diff] [blame] | 7736 | (png_size_t) (dp-text[0].text),"%8lu ",(unsigned long) length); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7737 | dp+=8; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7738 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 7739 | for (i=0; i < (ssize_t) length; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7740 | { |
| 7741 | if (i%36 == 0) |
| 7742 | *dp++='\n'; |
| 7743 | *(dp++)=(char) hex[((*sp >> 4) & 0x0f)]; |
| 7744 | *(dp++)=(char) hex[((*sp++ ) & 0x0f)]; |
| 7745 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7746 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7747 | *dp++='\n'; |
| 7748 | *dp='\0'; |
| 7749 | text[0].text_length=(png_size_t) (dp-text[0].text); |
| 7750 | text[0].compression=image_info->compression == NoCompression || |
| 7751 | (image_info->compression == UndefinedCompression && |
| 7752 | text[0].text_length < 128) ? -1 : 0; |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7753 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7754 | if (text[0].text_length <= allocated_length) |
| 7755 | png_set_text(ping,ping_info,text,1); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7756 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7757 | png_free(ping,text[0].text); |
| 7758 | png_free(ping,text[0].key); |
| 7759 | png_free(ping,text); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7760 | } |
| 7761 | |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 7762 | static MagickBooleanType Magick_png_write_chunk_from_profile(Image *image, |
cristy | 4383ec8 | 2011-01-05 15:42:32 +0000 | [diff] [blame] | 7763 | const char *string, MagickBooleanType logging) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7764 | { |
| 7765 | char |
| 7766 | *name; |
| 7767 | |
| 7768 | const StringInfo |
| 7769 | *profile; |
| 7770 | |
| 7771 | unsigned char |
| 7772 | *data; |
| 7773 | |
| 7774 | png_uint_32 length; |
| 7775 | |
| 7776 | ResetImageProfileIterator(image); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7777 | |
| 7778 | for (name=GetNextImageProfile(image); name != (const char *) NULL; ) |
| 7779 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7780 | profile=GetImageProfile(image,name); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7781 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7782 | if (profile != (const StringInfo *) NULL) |
| 7783 | { |
| 7784 | StringInfo |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 7785 | *ping_profile; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7786 | |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7787 | if (LocaleNCompare(name,string,11) == 0) |
| 7788 | { |
| 7789 | if (logging != MagickFalse) |
| 7790 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 7791 | " Found %s profile",name); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7792 | |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 7793 | ping_profile=CloneStringInfo(profile); |
| 7794 | data=GetStringInfoDatum(ping_profile), |
| 7795 | length=(png_uint_32) GetStringInfoLength(ping_profile); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7796 | data[4]=data[3]; |
| 7797 | data[3]=data[2]; |
| 7798 | data[2]=data[1]; |
| 7799 | data[1]=data[0]; |
| 7800 | (void) WriteBlobMSBULong(image,length-5); /* data length */ |
| 7801 | (void) WriteBlob(image,length-1,data+1); |
| 7802 | (void) WriteBlobMSBULong(image,crc32(0,data+1,(uInt) length-1)); |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 7803 | ping_profile=DestroyStringInfo(ping_profile); |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7804 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7805 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7806 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7807 | name=GetNextImageProfile(image); |
| 7808 | } |
glennrp | 47b9dd5 | 2010-11-24 18:12:06 +0000 | [diff] [blame] | 7809 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7810 | return(MagickTrue); |
| 7811 | } |
| 7812 | |
dirk | 68a6b50 | 2016-01-02 17:47:58 +0100 | [diff] [blame] | 7813 | static inline MagickBooleanType Magick_png_color_equal(const Image *image, |
| 7814 | const Quantum *p, const PixelInfo *q) |
| 7815 | { |
| 7816 | MagickRealType |
| 7817 | value; |
| 7818 | |
| 7819 | value=(MagickRealType) p[image->channel_map[RedPixelChannel].offset]; |
| 7820 | if (AbsolutePixelValue(value-q->red) >= MagickEpsilon) |
| 7821 | return(MagickFalse); |
| 7822 | value=(MagickRealType) p[image->channel_map[GreenPixelChannel].offset]; |
| 7823 | if (AbsolutePixelValue(value-q->green) >= MagickEpsilon) |
| 7824 | return(MagickFalse); |
| 7825 | value=(MagickRealType) p[image->channel_map[BluePixelChannel].offset]; |
| 7826 | if (AbsolutePixelValue(value-q->blue) >= MagickEpsilon) |
| 7827 | return(MagickFalse); |
| 7828 | |
| 7829 | return(MagickTrue); |
| 7830 | } |
| 7831 | |
dirk | fd6fd07 | 2014-10-24 21:10:08 +0000 | [diff] [blame] | 7832 | #if defined(PNG_tIME_SUPPORTED) |
| 7833 | static void write_tIME_chunk(Image *image,png_struct *ping,png_info *info, |
| 7834 | const char *date,ExceptionInfo *exception) |
| 7835 | { |
| 7836 | unsigned int |
| 7837 | day, |
| 7838 | hour, |
| 7839 | minute, |
| 7840 | month, |
| 7841 | second, |
| 7842 | year; |
| 7843 | |
| 7844 | png_time |
| 7845 | ptime; |
| 7846 | |
| 7847 | time_t |
| 7848 | ttime; |
| 7849 | |
| 7850 | if (date != (const char *) NULL) |
| 7851 | { |
| 7852 | if (sscanf(date,"%d-%d-%dT%d:%d:%dZ",&year,&month,&day,&hour,&minute, |
| 7853 | &second) != 6) |
| 7854 | { |
| 7855 | (void) ThrowMagickException(exception,GetMagickModule(),CoderError, |
| 7856 | "Invalid date format specified for png:tIME","`%s'", |
| 7857 | image->filename); |
| 7858 | return; |
| 7859 | } |
| 7860 | ptime.year=(png_uint_16) year; |
| 7861 | ptime.month=(png_byte) month; |
| 7862 | ptime.day=(png_byte) day; |
| 7863 | ptime.hour=(png_byte) hour; |
| 7864 | ptime.minute=(png_byte) minute; |
| 7865 | ptime.second=(png_byte) second; |
| 7866 | } |
| 7867 | else |
| 7868 | { |
| 7869 | time(&ttime); |
| 7870 | png_convert_from_time_t(&ptime,ttime); |
| 7871 | } |
| 7872 | png_set_tIME(ping,info,&ptime); |
| 7873 | } |
| 7874 | #endif |
glennrp | b9cfe27 | 2010-12-21 15:08:06 +0000 | [diff] [blame] | 7875 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7876 | /* Write one PNG image */ |
glennrp | b9cfe27 | 2010-12-21 15:08:06 +0000 | [diff] [blame] | 7877 | static MagickBooleanType WriteOnePNGImage(MngInfo *mng_info, |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 7878 | const ImageInfo *IMimage_info,Image *IMimage,ExceptionInfo *exception) |
glennrp | b9cfe27 | 2010-12-21 15:08:06 +0000 | [diff] [blame] | 7879 | { |
cristy | 0997332 | 2013-06-30 21:06:30 +0000 | [diff] [blame] | 7880 | char |
| 7881 | im_vers[32], |
| 7882 | libpng_runv[32], |
| 7883 | libpng_vers[32], |
| 7884 | zlib_runv[32], |
| 7885 | zlib_vers[32]; |
| 7886 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 7887 | Image |
| 7888 | *image; |
| 7889 | |
| 7890 | ImageInfo |
| 7891 | *image_info; |
| 7892 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7893 | char |
| 7894 | s[2]; |
| 7895 | |
| 7896 | const char |
| 7897 | *name, |
| 7898 | *property, |
| 7899 | *value; |
| 7900 | |
| 7901 | const StringInfo |
| 7902 | *profile; |
| 7903 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7904 | int |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7905 | num_passes, |
glennrp | cecd576 | 2010-03-23 12:07:49 +0000 | [diff] [blame] | 7906 | pass; |
| 7907 | |
glennrp | e9c26dc | 2010-05-30 01:56:35 +0000 | [diff] [blame] | 7908 | png_byte |
| 7909 | ping_trans_alpha[256]; |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 7910 | |
glennrp | 39992b4 | 2010-11-14 00:03:43 +0000 | [diff] [blame] | 7911 | png_color |
| 7912 | palette[257]; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7913 | |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 7914 | png_color_16 |
| 7915 | ping_background, |
| 7916 | ping_trans_color; |
| 7917 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7918 | png_info |
| 7919 | *ping_info; |
| 7920 | |
| 7921 | png_struct |
| 7922 | *ping; |
| 7923 | |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 7924 | png_uint_32 |
| 7925 | ping_height, |
| 7926 | ping_width; |
| 7927 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 7928 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7929 | y; |
| 7930 | |
| 7931 | MagickBooleanType |
glennrp | 58e0176 | 2011-01-07 15:28:54 +0000 | [diff] [blame] | 7932 | image_matte, |
glennrp | 21f0e62 | 2011-01-07 16:20:57 +0000 | [diff] [blame] | 7933 | logging, |
glennrp | 58e0176 | 2011-01-07 15:28:54 +0000 | [diff] [blame] | 7934 | matte, |
| 7935 | |
glennrp | da8f3a7 | 2011-02-27 23:54:12 +0000 | [diff] [blame] | 7936 | ping_have_blob, |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 7937 | ping_have_cheap_transparency, |
glennrp | d6bf161 | 2010-12-17 17:28:54 +0000 | [diff] [blame] | 7938 | ping_have_color, |
glennrp | 8d57966 | 2011-02-23 02:05:02 +0000 | [diff] [blame] | 7939 | ping_have_non_bw, |
glennrp | 39992b4 | 2010-11-14 00:03:43 +0000 | [diff] [blame] | 7940 | ping_have_PLTE, |
glennrp | 991d11d | 2010-11-12 21:55:28 +0000 | [diff] [blame] | 7941 | ping_have_bKGD, |
glennrp | 918b9dc | 2013-04-03 13:41:41 +0000 | [diff] [blame] | 7942 | ping_have_iCCP, |
glennrp | 991d11d | 2010-11-12 21:55:28 +0000 | [diff] [blame] | 7943 | ping_have_pHYs, |
glennrp | 918b9dc | 2013-04-03 13:41:41 +0000 | [diff] [blame] | 7944 | ping_have_sRGB, |
glennrp | 991d11d | 2010-11-12 21:55:28 +0000 | [diff] [blame] | 7945 | ping_have_tRNS, |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 7946 | |
| 7947 | ping_exclude_bKGD, |
| 7948 | ping_exclude_cHRM, |
glennrp | a0ed009 | 2011-04-18 16:36:29 +0000 | [diff] [blame] | 7949 | ping_exclude_date, |
glennrp | e4e2d79 | 2011-02-21 12:11:27 +0000 | [diff] [blame] | 7950 | /* ping_exclude_EXIF, */ |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 7951 | ping_exclude_gAMA, |
| 7952 | ping_exclude_iCCP, |
| 7953 | /* ping_exclude_iTXt, */ |
| 7954 | ping_exclude_oFFs, |
| 7955 | ping_exclude_pHYs, |
| 7956 | ping_exclude_sRGB, |
| 7957 | ping_exclude_tEXt, |
dirk | fd6fd07 | 2014-10-24 21:10:08 +0000 | [diff] [blame] | 7958 | ping_exclude_tIME, |
glennrp | e4e2d79 | 2011-02-21 12:11:27 +0000 | [diff] [blame] | 7959 | /* ping_exclude_tRNS, */ |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 7960 | ping_exclude_vpAg, |
| 7961 | ping_exclude_zCCP, /* hex-encoded iCCP */ |
| 7962 | ping_exclude_zTXt, |
| 7963 | |
glennrp | 8d3d6e5 | 2011-04-19 04:39:51 +0000 | [diff] [blame] | 7964 | ping_preserve_colormap, |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 7965 | ping_preserve_iCCP, |
glennrp | 0e8ea19 | 2010-12-24 18:00:33 +0000 | [diff] [blame] | 7966 | ping_need_colortype_warning, |
| 7967 | |
glennrp | 82b3c53 | 2011-03-22 19:20:54 +0000 | [diff] [blame] | 7968 | status, |
glennrp | 8ca51ad | 2011-05-12 21:22:32 +0000 | [diff] [blame] | 7969 | tried_332, |
glennrp | d337164 | 2011-03-22 19:42:23 +0000 | [diff] [blame] | 7970 | tried_333, |
| 7971 | tried_444; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7972 | |
cristy | 0997332 | 2013-06-30 21:06:30 +0000 | [diff] [blame] | 7973 | MemoryInfo |
cristy | af1534a | 2013-06-30 21:12:25 +0000 | [diff] [blame] | 7974 | *volatile pixel_info; |
cristy | 0997332 | 2013-06-30 21:06:30 +0000 | [diff] [blame] | 7975 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7976 | QuantumInfo |
| 7977 | *quantum_info; |
| 7978 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 7979 | PNGErrorInfo |
| 7980 | error_info; |
| 7981 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 7982 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 7983 | i, |
| 7984 | x; |
| 7985 | |
| 7986 | unsigned char |
cristy | 0997332 | 2013-06-30 21:06:30 +0000 | [diff] [blame] | 7987 | *ping_pixels; |
glennrp | d0cae25 | 2013-03-15 22:30:41 +0000 | [diff] [blame] | 7988 | |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 7989 | volatile int |
glennrp | f09bded | 2011-01-08 01:15:59 +0000 | [diff] [blame] | 7990 | image_colors, |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 7991 | ping_bit_depth, |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 7992 | ping_color_type, |
| 7993 | ping_interlace_method, |
| 7994 | ping_compression_method, |
| 7995 | ping_filter_method, |
| 7996 | ping_num_trans; |
| 7997 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 7998 | volatile size_t |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 7999 | image_depth, |
| 8000 | old_bit_depth; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 8001 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 8002 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 8003 | quality, |
| 8004 | rowbytes, |
| 8005 | save_image_depth; |
| 8006 | |
glennrp | dfd7080 | 2010-11-14 01:23:35 +0000 | [diff] [blame] | 8007 | int |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 8008 | j, |
glennrp | f09bded | 2011-01-08 01:15:59 +0000 | [diff] [blame] | 8009 | number_colors, |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 8010 | number_opaque, |
| 8011 | number_semitransparent, |
| 8012 | number_transparent, |
glennrp | dfd7080 | 2010-11-14 01:23:35 +0000 | [diff] [blame] | 8013 | ping_pHYs_unit_type; |
| 8014 | |
| 8015 | png_uint_32 |
| 8016 | ping_pHYs_x_resolution, |
| 8017 | ping_pHYs_y_resolution; |
| 8018 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 8019 | logging=LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 8020 | " Enter WriteOnePNGImage()"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 8021 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8022 | image = CloneImage(IMimage,0,0,MagickFalse,exception); |
| 8023 | image_info=(ImageInfo *) CloneImageInfo(IMimage_info); |
| 8024 | if (image_info == (ImageInfo *) NULL) |
| 8025 | ThrowWriterException(ResourceLimitError, "MemoryAllocationFailed"); |
glennrp | b9cfe27 | 2010-12-21 15:08:06 +0000 | [diff] [blame] | 8026 | |
glennrp | d0cae25 | 2013-03-15 22:30:41 +0000 | [diff] [blame] | 8027 | /* Define these outside of the following "if logging()" block so they will |
| 8028 | * show in debuggers. |
| 8029 | */ |
| 8030 | *im_vers='\0'; |
| 8031 | (void) ConcatenateMagickString(im_vers, |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 8032 | MagickLibVersionText,MagickPathExtent); |
glennrp | d0cae25 | 2013-03-15 22:30:41 +0000 | [diff] [blame] | 8033 | (void) ConcatenateMagickString(im_vers, |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 8034 | MagickLibAddendum,MagickPathExtent); |
glennrp | ec0ddbc | 2013-03-16 12:40:12 +0000 | [diff] [blame] | 8035 | |
glennrp | d0cae25 | 2013-03-15 22:30:41 +0000 | [diff] [blame] | 8036 | *libpng_vers='\0'; |
| 8037 | (void) ConcatenateMagickString(libpng_vers, |
glennrp | ec0ddbc | 2013-03-16 12:40:12 +0000 | [diff] [blame] | 8038 | PNG_LIBPNG_VER_STRING,32); |
| 8039 | *libpng_runv='\0'; |
| 8040 | (void) ConcatenateMagickString(libpng_runv, |
| 8041 | png_get_libpng_ver(NULL),32); |
| 8042 | |
glennrp | d0cae25 | 2013-03-15 22:30:41 +0000 | [diff] [blame] | 8043 | *zlib_vers='\0'; |
| 8044 | (void) ConcatenateMagickString(zlib_vers, |
glennrp | ec0ddbc | 2013-03-16 12:40:12 +0000 | [diff] [blame] | 8045 | ZLIB_VERSION,32); |
| 8046 | *zlib_runv='\0'; |
| 8047 | (void) ConcatenateMagickString(zlib_runv, |
| 8048 | zlib_version,32); |
| 8049 | |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 8050 | if (logging != MagickFalse) |
glennrp | d0cae25 | 2013-03-15 22:30:41 +0000 | [diff] [blame] | 8051 | { |
| 8052 | LogMagickEvent(CoderEvent,GetMagickModule()," IM version = %s", |
| 8053 | im_vers); |
| 8054 | LogMagickEvent(CoderEvent,GetMagickModule()," Libpng version = %s", |
| 8055 | libpng_vers); |
glennrp | ec0ddbc | 2013-03-16 12:40:12 +0000 | [diff] [blame] | 8056 | if (LocaleCompare(libpng_vers,libpng_runv) != 0) |
| 8057 | { |
| 8058 | LogMagickEvent(CoderEvent,GetMagickModule()," running with %s", |
| 8059 | libpng_runv); |
| 8060 | } |
glennrp | d0cae25 | 2013-03-15 22:30:41 +0000 | [diff] [blame] | 8061 | LogMagickEvent(CoderEvent,GetMagickModule()," Zlib version = %s", |
| 8062 | zlib_vers); |
glennrp | ec0ddbc | 2013-03-16 12:40:12 +0000 | [diff] [blame] | 8063 | if (LocaleCompare(zlib_vers,zlib_runv) != 0) |
| 8064 | { |
| 8065 | LogMagickEvent(CoderEvent,GetMagickModule()," running with %s", |
| 8066 | zlib_runv); |
| 8067 | } |
glennrp | d0cae25 | 2013-03-15 22:30:41 +0000 | [diff] [blame] | 8068 | } |
| 8069 | |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 8070 | /* Initialize some stuff */ |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 8071 | ping_bit_depth=0, |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 8072 | ping_color_type=0, |
| 8073 | ping_interlace_method=0, |
| 8074 | ping_compression_method=0, |
| 8075 | ping_filter_method=0, |
| 8076 | ping_num_trans = 0; |
| 8077 | |
| 8078 | ping_background.red = 0; |
| 8079 | ping_background.green = 0; |
| 8080 | ping_background.blue = 0; |
| 8081 | ping_background.gray = 0; |
| 8082 | ping_background.index = 0; |
| 8083 | |
| 8084 | ping_trans_color.red=0; |
| 8085 | ping_trans_color.green=0; |
| 8086 | ping_trans_color.blue=0; |
| 8087 | ping_trans_color.gray=0; |
| 8088 | |
glennrp | dfd7080 | 2010-11-14 01:23:35 +0000 | [diff] [blame] | 8089 | ping_pHYs_unit_type = 0; |
| 8090 | ping_pHYs_x_resolution = 0; |
| 8091 | ping_pHYs_y_resolution = 0; |
| 8092 | |
glennrp | da8f3a7 | 2011-02-27 23:54:12 +0000 | [diff] [blame] | 8093 | ping_have_blob=MagickFalse; |
glennrp | f70c4d2 | 2013-03-19 15:26:48 +0000 | [diff] [blame] | 8094 | ping_have_cheap_transparency=MagickFalse; |
glennrp | d6bf161 | 2010-12-17 17:28:54 +0000 | [diff] [blame] | 8095 | ping_have_color=MagickTrue; |
glennrp | 8d57966 | 2011-02-23 02:05:02 +0000 | [diff] [blame] | 8096 | ping_have_non_bw=MagickTrue; |
glennrp | 39992b4 | 2010-11-14 00:03:43 +0000 | [diff] [blame] | 8097 | ping_have_PLTE=MagickFalse; |
glennrp | 991d11d | 2010-11-12 21:55:28 +0000 | [diff] [blame] | 8098 | ping_have_bKGD=MagickFalse; |
glennrp | 918b9dc | 2013-04-03 13:41:41 +0000 | [diff] [blame] | 8099 | ping_have_iCCP=MagickFalse; |
glennrp | 991d11d | 2010-11-12 21:55:28 +0000 | [diff] [blame] | 8100 | ping_have_pHYs=MagickFalse; |
glennrp | 918b9dc | 2013-04-03 13:41:41 +0000 | [diff] [blame] | 8101 | ping_have_sRGB=MagickFalse; |
glennrp | 991d11d | 2010-11-12 21:55:28 +0000 | [diff] [blame] | 8102 | ping_have_tRNS=MagickFalse; |
| 8103 | |
glennrp | 0e8ea19 | 2010-12-24 18:00:33 +0000 | [diff] [blame] | 8104 | ping_exclude_bKGD=mng_info->ping_exclude_bKGD; |
| 8105 | ping_exclude_cHRM=mng_info->ping_exclude_cHRM; |
glennrp | a0ed009 | 2011-04-18 16:36:29 +0000 | [diff] [blame] | 8106 | ping_exclude_date=mng_info->ping_exclude_date; |
glennrp | dde35db | 2011-02-21 12:06:32 +0000 | [diff] [blame] | 8107 | /* ping_exclude_EXIF=mng_info->ping_exclude_EXIF; */ |
glennrp | 0e8ea19 | 2010-12-24 18:00:33 +0000 | [diff] [blame] | 8108 | ping_exclude_gAMA=mng_info->ping_exclude_gAMA; |
glennrp | 0e8ea19 | 2010-12-24 18:00:33 +0000 | [diff] [blame] | 8109 | ping_exclude_iCCP=mng_info->ping_exclude_iCCP; |
| 8110 | /* ping_exclude_iTXt=mng_info->ping_exclude_iTXt; */ |
| 8111 | ping_exclude_oFFs=mng_info->ping_exclude_oFFs; |
| 8112 | ping_exclude_pHYs=mng_info->ping_exclude_pHYs; |
| 8113 | ping_exclude_sRGB=mng_info->ping_exclude_sRGB; |
| 8114 | ping_exclude_tEXt=mng_info->ping_exclude_tEXt; |
dirk | fd6fd07 | 2014-10-24 21:10:08 +0000 | [diff] [blame] | 8115 | ping_exclude_tIME=mng_info->ping_exclude_tIME; |
glennrp | dde35db | 2011-02-21 12:06:32 +0000 | [diff] [blame] | 8116 | /* ping_exclude_tRNS=mng_info->ping_exclude_tRNS; */ |
glennrp | 0e8ea19 | 2010-12-24 18:00:33 +0000 | [diff] [blame] | 8117 | ping_exclude_vpAg=mng_info->ping_exclude_vpAg; |
| 8118 | ping_exclude_zCCP=mng_info->ping_exclude_zCCP; /* hex-encoded iCCP in zTXt */ |
| 8119 | ping_exclude_zTXt=mng_info->ping_exclude_zTXt; |
| 8120 | |
glennrp | 8d3d6e5 | 2011-04-19 04:39:51 +0000 | [diff] [blame] | 8121 | ping_preserve_colormap = mng_info->ping_preserve_colormap; |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 8122 | ping_preserve_iCCP = mng_info->ping_preserve_iCCP; |
glennrp | 0e8ea19 | 2010-12-24 18:00:33 +0000 | [diff] [blame] | 8123 | ping_need_colortype_warning = MagickFalse; |
| 8124 | |
cristy | 0d57eec | 2011-09-04 22:13:56 +0000 | [diff] [blame] | 8125 | /* Recognize the ICC sRGB profile and convert it to the sRGB chunk, |
| 8126 | * i.e., eliminate the ICC profile and set image->rendering_intent. |
| 8127 | * Note that this will not involve any changes to the actual pixels |
| 8128 | * but merely passes information to applications that read the resulting |
| 8129 | * PNG image. |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 8130 | * |
| 8131 | * To do: recognize other variants of the sRGB profile, using the CRC to |
| 8132 | * verify all recognized variants including the 7 already known. |
| 8133 | * |
| 8134 | * Work around libpng16+ rejecting some "known invalid sRGB profiles". |
| 8135 | * |
| 8136 | * Use something other than image->rendering_intent to record the fact |
| 8137 | * that the sRGB profile was found. |
| 8138 | * |
| 8139 | * Record the ICC version (currently v2 or v4) of the incoming sRGB ICC |
| 8140 | * profile. Record the Blackpoint Compensation, if any. |
cristy | 0d57eec | 2011-09-04 22:13:56 +0000 | [diff] [blame] | 8141 | */ |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 8142 | if (ping_exclude_sRGB == MagickFalse && ping_preserve_iCCP == MagickFalse) |
cristy | 0d57eec | 2011-09-04 22:13:56 +0000 | [diff] [blame] | 8143 | { |
| 8144 | char |
| 8145 | *name; |
| 8146 | |
| 8147 | const StringInfo |
| 8148 | *profile; |
| 8149 | |
| 8150 | ResetImageProfileIterator(image); |
| 8151 | for (name=GetNextImageProfile(image); name != (const char *) NULL; ) |
| 8152 | { |
| 8153 | profile=GetImageProfile(image,name); |
| 8154 | |
| 8155 | if (profile != (StringInfo *) NULL) |
| 8156 | { |
| 8157 | if ((LocaleCompare(name,"ICC") == 0) || |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 8158 | (LocaleCompare(name,"ICM") == 0)) |
glennrp | ee7b4c0 | 2011-10-04 01:21:09 +0000 | [diff] [blame] | 8159 | |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 8160 | { |
| 8161 | int |
| 8162 | icheck, |
| 8163 | got_crc=0; |
| 8164 | |
glennrp | ee7b4c0 | 2011-10-04 01:21:09 +0000 | [diff] [blame] | 8165 | |
| 8166 | png_uint_32 |
| 8167 | length, |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 8168 | profile_crc=0; |
glennrp | ee7b4c0 | 2011-10-04 01:21:09 +0000 | [diff] [blame] | 8169 | |
cristy | 0d57eec | 2011-09-04 22:13:56 +0000 | [diff] [blame] | 8170 | unsigned char |
| 8171 | *data; |
| 8172 | |
glennrp | 29a106e | 2011-09-06 17:11:42 +0000 | [diff] [blame] | 8173 | length=(png_uint_32) GetStringInfoLength(profile); |
| 8174 | |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 8175 | for (icheck=0; sRGB_info[icheck].len > 0; icheck++) |
cristy | 0d57eec | 2011-09-04 22:13:56 +0000 | [diff] [blame] | 8176 | { |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 8177 | if (length == sRGB_info[icheck].len) |
glennrp | 29a106e | 2011-09-06 17:11:42 +0000 | [diff] [blame] | 8178 | { |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 8179 | if (got_crc == 0) |
| 8180 | { |
| 8181 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | ee7b4c0 | 2011-10-04 01:21:09 +0000 | [diff] [blame] | 8182 | " Got a %lu-byte ICC profile (potentially sRGB)", |
| 8183 | (unsigned long) length); |
glennrp | 29a106e | 2011-09-06 17:11:42 +0000 | [diff] [blame] | 8184 | |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 8185 | data=GetStringInfoDatum(profile); |
| 8186 | profile_crc=crc32(0,data,length); |
glennrp | 29a106e | 2011-09-06 17:11:42 +0000 | [diff] [blame] | 8187 | |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 8188 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8189 | " with crc=%8x",(unsigned int) profile_crc); |
| 8190 | got_crc++; |
| 8191 | } |
glennrp | ee7b4c0 | 2011-10-04 01:21:09 +0000 | [diff] [blame] | 8192 | |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 8193 | if (profile_crc == sRGB_info[icheck].crc) |
glennrp | ee7b4c0 | 2011-10-04 01:21:09 +0000 | [diff] [blame] | 8194 | { |
| 8195 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 8196 | " It is sRGB with rendering intent = %s", |
| 8197 | Magick_RenderingIntentString_from_PNG_RenderingIntent( |
| 8198 | sRGB_info[icheck].intent)); |
glennrp | ee7b4c0 | 2011-10-04 01:21:09 +0000 | [diff] [blame] | 8199 | if (image->rendering_intent==UndefinedIntent) |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 8200 | { |
| 8201 | image->rendering_intent= |
| 8202 | Magick_RenderingIntent_from_PNG_RenderingIntent( |
| 8203 | sRGB_info[icheck].intent); |
| 8204 | } |
| 8205 | ping_exclude_iCCP = MagickTrue; |
| 8206 | ping_exclude_zCCP = MagickTrue; |
| 8207 | ping_have_sRGB = MagickTrue; |
glennrp | ee7b4c0 | 2011-10-04 01:21:09 +0000 | [diff] [blame] | 8208 | break; |
| 8209 | } |
glennrp | 29a106e | 2011-09-06 17:11:42 +0000 | [diff] [blame] | 8210 | } |
glennrp | 29a106e | 2011-09-06 17:11:42 +0000 | [diff] [blame] | 8211 | } |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 8212 | if (sRGB_info[icheck].len == 0) |
glennrp | 29a106e | 2011-09-06 17:11:42 +0000 | [diff] [blame] | 8213 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 8214 | " Got a %lu-byte ICC profile not recognized as sRGB", |
glennrp | 29a106e | 2011-09-06 17:11:42 +0000 | [diff] [blame] | 8215 | (unsigned long) length); |
| 8216 | } |
cristy | 0d57eec | 2011-09-04 22:13:56 +0000 | [diff] [blame] | 8217 | } |
| 8218 | name=GetNextImageProfile(image); |
| 8219 | } |
| 8220 | } |
| 8221 | |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 8222 | number_opaque = 0; |
| 8223 | number_semitransparent = 0; |
| 8224 | number_transparent = 0; |
| 8225 | |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 8226 | if (logging != MagickFalse) |
| 8227 | { |
| 8228 | if (image->storage_class == UndefinedClass) |
| 8229 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | f3794ae | 2014-10-26 21:16:10 +0000 | [diff] [blame] | 8230 | " image->storage_class=UndefinedClass"); |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 8231 | if (image->storage_class == DirectClass) |
| 8232 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | f3794ae | 2014-10-26 21:16:10 +0000 | [diff] [blame] | 8233 | " image->storage_class=DirectClass"); |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 8234 | if (image->storage_class == PseudoClass) |
| 8235 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | f3794ae | 2014-10-26 21:16:10 +0000 | [diff] [blame] | 8236 | " image->storage_class=PseudoClass"); |
| 8237 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), image->taint ? |
glennrp | cc96f2d | 2014-10-26 21:30:02 +0000 | [diff] [blame] | 8238 | " image->taint=MagickTrue": |
| 8239 | " image->taint=MagickFalse"); |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 8240 | } |
glennrp | 28af371 | 2011-04-06 18:07:30 +0000 | [diff] [blame] | 8241 | |
glennrp | 750105b | 2012-04-25 16:20:45 +0000 | [diff] [blame] | 8242 | if (image->storage_class == PseudoClass && |
glennrp | 7e65e93 | 2011-08-19 02:31:16 +0000 | [diff] [blame] | 8243 | (mng_info->write_png8 || mng_info->write_png24 || mng_info->write_png32 || |
glennrp | fd164d2 | 2013-01-26 21:10:22 +0000 | [diff] [blame] | 8244 | mng_info->write_png48 || mng_info->write_png64 || |
| 8245 | (mng_info->write_png_colortype != 1 && |
| 8246 | mng_info->write_png_colortype != 5))) |
glennrp | 7e65e93 | 2011-08-19 02:31:16 +0000 | [diff] [blame] | 8247 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8248 | (void) SyncImage(image,exception); |
glennrp | 7e65e93 | 2011-08-19 02:31:16 +0000 | [diff] [blame] | 8249 | image->storage_class = DirectClass; |
| 8250 | } |
| 8251 | |
glennrp | c6c391a | 2011-04-27 02:23:56 +0000 | [diff] [blame] | 8252 | if (ping_preserve_colormap == MagickFalse) |
glennrp | 28af371 | 2011-04-06 18:07:30 +0000 | [diff] [blame] | 8253 | { |
glennrp | c6c391a | 2011-04-27 02:23:56 +0000 | [diff] [blame] | 8254 | if (image->storage_class != PseudoClass && image->colormap != NULL) |
| 8255 | { |
| 8256 | /* Free the bogus colormap; it can cause trouble later */ |
| 8257 | if (logging != MagickFalse) |
| 8258 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8259 | " Freeing bogus colormap"); |
cristy | e9ac4c3 | 2011-09-26 18:47:22 +0000 | [diff] [blame] | 8260 | (void) RelinquishMagickMemory(image->colormap); |
glennrp | c6c391a | 2011-04-27 02:23:56 +0000 | [diff] [blame] | 8261 | image->colormap=NULL; |
| 8262 | } |
glennrp | 28af371 | 2011-04-06 18:07:30 +0000 | [diff] [blame] | 8263 | } |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 8264 | |
glennrp | c28acd6 | 2013-12-05 20:21:45 +0000 | [diff] [blame] | 8265 | if (IssRGBCompatibleColorspace(image->colorspace) == MagickFalse) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8266 | (void) TransformImageColorspace(image,sRGBColorspace,exception); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 8267 | |
glennrp | 3241bd0 | 2010-12-12 04:36:28 +0000 | [diff] [blame] | 8268 | /* |
| 8269 | Sometimes we get PseudoClass images whose RGB values don't match |
| 8270 | the colors in the colormap. This code syncs the RGB values. |
| 8271 | */ |
| 8272 | if (image->depth <= 8 && image->taint && image->storage_class == PseudoClass) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8273 | (void) SyncImage(image,exception); |
glennrp | 3241bd0 | 2010-12-12 04:36:28 +0000 | [diff] [blame] | 8274 | |
glennrp | a6a0663 | 2011-01-19 15:15:34 +0000 | [diff] [blame] | 8275 | #if (MAGICKCORE_QUANTUM_DEPTH == 8) |
| 8276 | if (image->depth > 8) |
| 8277 | { |
| 8278 | if (logging != MagickFalse) |
| 8279 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8280 | " Reducing PNG bit depth to 8 since this is a Q8 build."); |
| 8281 | |
| 8282 | image->depth=8; |
| 8283 | } |
| 8284 | #endif |
| 8285 | |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 8286 | /* Respect the -depth option */ |
dirk | cd97995 | 2014-10-24 20:46:54 +0000 | [diff] [blame] | 8287 | if (image->depth < 4) |
glennrp | cc95c3f | 2011-04-18 16:46:48 +0000 | [diff] [blame] | 8288 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8289 | register Quantum |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 8290 | *r; |
| 8291 | |
dirk | aac4963 | 2014-10-24 20:29:33 +0000 | [diff] [blame] | 8292 | if (image->depth > 2) |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 8293 | { |
| 8294 | /* Scale to 4-bit */ |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 8295 | LBR04PacketRGBO(image->background_color); |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 8296 | |
| 8297 | for (y=0; y < (ssize_t) image->rows; y++) |
| 8298 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8299 | r=GetAuthenticPixels(image,0,y,image->columns,1,exception); |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 8300 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8301 | if (r == (Quantum *) NULL) |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 8302 | break; |
| 8303 | |
| 8304 | for (x=0; x < (ssize_t) image->columns; x++) |
| 8305 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8306 | LBR04PixelRGBA(r); |
| 8307 | r+=GetPixelChannels(image); |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 8308 | } |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 8309 | |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 8310 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 8311 | break; |
| 8312 | } |
| 8313 | |
| 8314 | if (image->storage_class == PseudoClass && image->colormap != NULL) |
| 8315 | { |
cristy | 3e08f11 | 2011-05-24 13:19:30 +0000 | [diff] [blame] | 8316 | for (i=0; i < (ssize_t) image->colors; i++) |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 8317 | { |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 8318 | LBR04PacketRGBO(image->colormap[i]); |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 8319 | } |
| 8320 | } |
| 8321 | } |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 8322 | else if (image->depth > 1) |
| 8323 | { |
| 8324 | /* Scale to 2-bit */ |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 8325 | LBR02PacketRGBO(image->background_color); |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 8326 | |
| 8327 | for (y=0; y < (ssize_t) image->rows; y++) |
| 8328 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8329 | r=GetAuthenticPixels(image,0,y,image->columns,1,exception); |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 8330 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8331 | if (r == (Quantum *) NULL) |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 8332 | break; |
| 8333 | |
| 8334 | for (x=0; x < (ssize_t) image->columns; x++) |
| 8335 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8336 | LBR02PixelRGBA(r); |
| 8337 | r+=GetPixelChannels(image); |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 8338 | } |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 8339 | |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 8340 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 8341 | break; |
| 8342 | } |
| 8343 | |
| 8344 | if (image->storage_class == PseudoClass && image->colormap != NULL) |
| 8345 | { |
cristy | 3e08f11 | 2011-05-24 13:19:30 +0000 | [diff] [blame] | 8346 | for (i=0; i < (ssize_t) image->colors; i++) |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 8347 | { |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 8348 | LBR02PacketRGBO(image->colormap[i]); |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 8349 | } |
| 8350 | } |
| 8351 | } |
| 8352 | else |
| 8353 | { |
| 8354 | /* Scale to 1-bit */ |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 8355 | LBR01PacketRGBO(image->background_color); |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 8356 | |
| 8357 | for (y=0; y < (ssize_t) image->rows; y++) |
| 8358 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8359 | r=GetAuthenticPixels(image,0,y,image->columns,1,exception); |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 8360 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8361 | if (r == (Quantum *) NULL) |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 8362 | break; |
| 8363 | |
| 8364 | for (x=0; x < (ssize_t) image->columns; x++) |
| 8365 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8366 | LBR01PixelRGBA(r); |
| 8367 | r+=GetPixelChannels(image); |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 8368 | } |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 8369 | |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 8370 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 8371 | break; |
| 8372 | } |
| 8373 | |
| 8374 | if (image->storage_class == PseudoClass && image->colormap != NULL) |
| 8375 | { |
cristy | 3e08f11 | 2011-05-24 13:19:30 +0000 | [diff] [blame] | 8376 | for (i=0; i < (ssize_t) image->colors; i++) |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 8377 | { |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 8378 | LBR01PacketRGBO(image->colormap[i]); |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 8379 | } |
| 8380 | } |
| 8381 | } |
glennrp | 9d0ea4d | 2011-04-22 18:35:57 +0000 | [diff] [blame] | 8382 | } |
| 8383 | |
glennrp | 67b9c1a | 2011-04-22 18:47:36 +0000 | [diff] [blame] | 8384 | /* To do: set to next higher multiple of 8 */ |
| 8385 | if (image->depth < 8) |
glennrp | 70e68a8 | 2011-04-01 22:51:14 +0000 | [diff] [blame] | 8386 | image->depth=8; |
glennrp | a6a0663 | 2011-01-19 15:15:34 +0000 | [diff] [blame] | 8387 | |
glennrp | 2b013e4 | 2010-11-24 16:55:50 +0000 | [diff] [blame] | 8388 | #if (MAGICKCORE_QUANTUM_DEPTH > 16) |
| 8389 | /* PNG does not handle depths greater than 16 so reduce it even |
| 8390 | * if lossy |
| 8391 | */ |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 8392 | if (image->depth > 8) |
glennrp | 2b013e4 | 2010-11-24 16:55:50 +0000 | [diff] [blame] | 8393 | image->depth=16; |
| 8394 | #endif |
| 8395 | |
glennrp | 3faa9a3 | 2011-04-23 14:00:25 +0000 | [diff] [blame] | 8396 | #if (MAGICKCORE_QUANTUM_DEPTH > 8) |
glennrp | cc5d45b | 2012-01-06 04:06:10 +0000 | [diff] [blame] | 8397 | if (image->depth > 8) |
| 8398 | { |
| 8399 | /* To do: fill low byte properly */ |
| 8400 | image->depth=16; |
| 8401 | } |
| 8402 | |
glennrp | c722dd8 | 2011-02-24 05:13:21 +0000 | [diff] [blame] | 8403 | if (image->depth == 16 && mng_info->write_png_depth != 16) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8404 | if (mng_info->write_png8 || LosslessReduceDepthOK(image,exception) != MagickFalse) |
glennrp | 8640fb5 | 2010-11-23 15:48:26 +0000 | [diff] [blame] | 8405 | image->depth = 8; |
| 8406 | #endif |
| 8407 | |
glennrp | d0ee5a2 | 2014-03-28 14:28:47 +0000 | [diff] [blame] | 8408 | image_colors = (int) image->colors; |
| 8409 | number_opaque = (int) image->colors; |
| 8410 | number_transparent = 0; |
| 8411 | number_semitransparent = 0; |
| 8412 | |
glennrp | 197c8e6 | 2014-04-22 23:45:20 +0000 | [diff] [blame] | 8413 | if (mng_info->write_png_colortype && |
glennrp | a8036d6 | 2012-11-04 01:46:06 +0000 | [diff] [blame] | 8414 | (mng_info->write_png_colortype > 4 || (mng_info->write_png_depth >= 8 && |
| 8415 | mng_info->write_png_colortype < 4 && |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 8416 | image->alpha_trait == UndefinedPixelTrait))) |
glennrp | a8036d6 | 2012-11-04 01:46:06 +0000 | [diff] [blame] | 8417 | { |
| 8418 | /* Avoid the expensive BUILD_PALETTE operation if we're sure that we |
| 8419 | * are not going to need the result. |
| 8420 | */ |
glennrp | a8036d6 | 2012-11-04 01:46:06 +0000 | [diff] [blame] | 8421 | if (mng_info->write_png_colortype == 1 || |
| 8422 | mng_info->write_png_colortype == 5) |
| 8423 | ping_have_color=MagickFalse; |
glennrp | a8036d6 | 2012-11-04 01:46:06 +0000 | [diff] [blame] | 8424 | |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 8425 | if (image->alpha_trait != UndefinedPixelTrait) |
glennrp | a8036d6 | 2012-11-04 01:46:06 +0000 | [diff] [blame] | 8426 | { |
| 8427 | number_transparent = 2; |
| 8428 | number_semitransparent = 1; |
| 8429 | } |
glennrp | a8036d6 | 2012-11-04 01:46:06 +0000 | [diff] [blame] | 8430 | } |
| 8431 | |
glennrp | eb5cb8d | 2015-06-13 14:01:01 +0000 | [diff] [blame] | 8432 | if (mng_info->write_png_colortype < 7) |
glennrp | a8036d6 | 2012-11-04 01:46:06 +0000 | [diff] [blame] | 8433 | { |
| 8434 | /* BUILD_PALETTE |
| 8435 | * |
| 8436 | * Normally we run this just once, but in the case of writing PNG8 |
glennrp | e9637cb | 2011-03-24 16:34:37 +0000 | [diff] [blame] | 8437 | * we reduce the transparency to binary and run again, then if there |
| 8438 | * are still too many colors we reduce to a simple 4-4-4-1, then 3-3-3-1 |
glennrp | 8ca51ad | 2011-05-12 21:22:32 +0000 | [diff] [blame] | 8439 | * RGBA palette and run again, and then to a simple 3-3-2-1 RGBA |
| 8440 | * palette. Then (To do) we take care of a final reduction that is only |
| 8441 | * needed if there are still 256 colors present and one of them has both |
| 8442 | * transparent and opaque instances. |
glennrp | c8c2f06 | 2011-02-25 19:00:33 +0000 | [diff] [blame] | 8443 | */ |
glennrp | 82b3c53 | 2011-03-22 19:20:54 +0000 | [diff] [blame] | 8444 | |
glennrp | 8ca51ad | 2011-05-12 21:22:32 +0000 | [diff] [blame] | 8445 | tried_332 = MagickFalse; |
glennrp | 82b3c53 | 2011-03-22 19:20:54 +0000 | [diff] [blame] | 8446 | tried_333 = MagickFalse; |
glennrp | d337164 | 2011-03-22 19:42:23 +0000 | [diff] [blame] | 8447 | tried_444 = MagickFalse; |
glennrp | 82b3c53 | 2011-03-22 19:20:54 +0000 | [diff] [blame] | 8448 | |
glennrp | 8ca51ad | 2011-05-12 21:22:32 +0000 | [diff] [blame] | 8449 | for (j=0; j<6; j++) |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8450 | { |
glennrp | a8036d6 | 2012-11-04 01:46:06 +0000 | [diff] [blame] | 8451 | /* |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8452 | * Sometimes we get DirectClass images that have 256 colors or fewer. |
| 8453 | * This code will build a colormap. |
| 8454 | * |
| 8455 | * Also, sometimes we get PseudoClass images with an out-of-date |
| 8456 | * colormap. This code will replace the colormap with a new one. |
| 8457 | * Sometimes we get PseudoClass images that have more than 256 colors. |
| 8458 | * This code will delete the colormap and change the image to |
| 8459 | * DirectClass. |
| 8460 | * |
cristy | 8a46d82 | 2012-08-28 23:32:39 +0000 | [diff] [blame] | 8461 | * If image->alpha_trait is MagickFalse, we ignore the alpha channel |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8462 | * even though it sometimes contains left-over non-opaque values. |
| 8463 | * |
| 8464 | * Also we gather some information (number of opaque, transparent, |
| 8465 | * and semitransparent pixels, and whether the image has any non-gray |
| 8466 | * pixels or only black-and-white pixels) that we might need later. |
| 8467 | * |
| 8468 | * Even if the user wants to force GrayAlpha or RGBA (colortype 4 or 6) |
| 8469 | * we need to check for bogus non-opaque values, at least. |
| 8470 | */ |
glennrp | 3c21811 | 2010-11-27 15:31:26 +0000 | [diff] [blame] | 8471 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8472 | int |
| 8473 | n; |
glennrp | 3c21811 | 2010-11-27 15:31:26 +0000 | [diff] [blame] | 8474 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8475 | PixelInfo |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8476 | opaque[260], |
| 8477 | semitransparent[260], |
| 8478 | transparent[260]; |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 8479 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8480 | register const Quantum |
| 8481 | *s; |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 8482 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8483 | register Quantum |
| 8484 | *q, |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 8485 | *r; |
| 8486 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8487 | if (logging != MagickFalse) |
| 8488 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8489 | " Enter BUILD_PALETTE:"); |
| 8490 | |
| 8491 | if (logging != MagickFalse) |
| 8492 | { |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 8493 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8494 | " image->columns=%.20g",(double) image->columns); |
| 8495 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8496 | " image->rows=%.20g",(double) image->rows); |
| 8497 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | 8a46d82 | 2012-08-28 23:32:39 +0000 | [diff] [blame] | 8498 | " image->alpha_trait=%.20g",(double) image->alpha_trait); |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8499 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8500 | " image->depth=%.20g",(double) image->depth); |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 8501 | |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 8502 | if (image->storage_class == PseudoClass && image->colormap != NULL) |
glennrp | 7ddcc22 | 2010-12-11 05:01:05 +0000 | [diff] [blame] | 8503 | { |
| 8504 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8505 | " Original colormap:"); |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 8506 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8507 | " i (red,green,blue,alpha)"); |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 8508 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8509 | for (i=0; i < 256; i++) |
glennrp | 7ddcc22 | 2010-12-11 05:01:05 +0000 | [diff] [blame] | 8510 | { |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8511 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8512 | " %d (%d,%d,%d,%d)", |
| 8513 | (int) i, |
| 8514 | (int) image->colormap[i].red, |
| 8515 | (int) image->colormap[i].green, |
| 8516 | (int) image->colormap[i].blue, |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8517 | (int) image->colormap[i].alpha); |
glennrp | 7ddcc22 | 2010-12-11 05:01:05 +0000 | [diff] [blame] | 8518 | } |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 8519 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8520 | for (i=image->colors - 10; i < (ssize_t) image->colors; i++) |
| 8521 | { |
| 8522 | if (i > 255) |
| 8523 | { |
| 8524 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8525 | " %d (%d,%d,%d,%d)", |
| 8526 | (int) i, |
| 8527 | (int) image->colormap[i].red, |
| 8528 | (int) image->colormap[i].green, |
| 8529 | (int) image->colormap[i].blue, |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8530 | (int) image->colormap[i].alpha); |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8531 | } |
| 8532 | } |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 8533 | } |
glennrp | 7ddcc22 | 2010-12-11 05:01:05 +0000 | [diff] [blame] | 8534 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8535 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8536 | " image->colors=%d",(int) image->colors); |
glennrp | 7ddcc22 | 2010-12-11 05:01:05 +0000 | [diff] [blame] | 8537 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8538 | if (image->colors == 0) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8539 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8540 | " (zero means unknown)"); |
glennrp | d6bf161 | 2010-12-17 17:28:54 +0000 | [diff] [blame] | 8541 | |
glennrp | 8d3d6e5 | 2011-04-19 04:39:51 +0000 | [diff] [blame] | 8542 | if (ping_preserve_colormap == MagickFalse) |
| 8543 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8544 | " Regenerate the colormap"); |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8545 | } |
| 8546 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8547 | image_colors=0; |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 8548 | number_opaque = 0; |
| 8549 | number_semitransparent = 0; |
| 8550 | number_transparent = 0; |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8551 | |
| 8552 | for (y=0; y < (ssize_t) image->rows; y++) |
| 8553 | { |
| 8554 | q=GetAuthenticPixels(image,0,y,image->columns,1,exception); |
| 8555 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8556 | if (q == (Quantum *) NULL) |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8557 | break; |
| 8558 | |
| 8559 | for (x=0; x < (ssize_t) image->columns; x++) |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 8560 | { |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 8561 | if (image->alpha_trait == UndefinedPixelTrait || |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8562 | GetPixelAlpha(image,q) == OpaqueAlpha) |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8563 | { |
| 8564 | if (number_opaque < 259) |
| 8565 | { |
| 8566 | if (number_opaque == 0) |
| 8567 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8568 | GetPixelInfoPixel(image, q, opaque); |
| 8569 | opaque[0].alpha=OpaqueAlpha; |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8570 | number_opaque=1; |
| 8571 | } |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 8572 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8573 | for (i=0; i< (ssize_t) number_opaque; i++) |
| 8574 | { |
dirk | 68a6b50 | 2016-01-02 17:47:58 +0100 | [diff] [blame] | 8575 | if (Magick_png_color_equal(image,q,opaque+i)) |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8576 | break; |
| 8577 | } |
glennrp | 7ddcc22 | 2010-12-11 05:01:05 +0000 | [diff] [blame] | 8578 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8579 | if (i == (ssize_t) number_opaque && number_opaque < 259) |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8580 | { |
| 8581 | number_opaque++; |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8582 | GetPixelInfoPixel(image, q, opaque+i); |
| 8583 | opaque[i].alpha=OpaqueAlpha; |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8584 | } |
| 8585 | } |
| 8586 | } |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8587 | else if (GetPixelAlpha(image,q) == TransparentAlpha) |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8588 | { |
| 8589 | if (number_transparent < 259) |
| 8590 | { |
| 8591 | if (number_transparent == 0) |
| 8592 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8593 | GetPixelInfoPixel(image, q, transparent); |
| 8594 | ping_trans_color.red=(unsigned short) |
| 8595 | GetPixelRed(image,q); |
| 8596 | ping_trans_color.green=(unsigned short) |
| 8597 | GetPixelGreen(image,q); |
| 8598 | ping_trans_color.blue=(unsigned short) |
| 8599 | GetPixelBlue(image,q); |
| 8600 | ping_trans_color.gray=(unsigned short) |
cristy | 972d1c4 | 2012-07-14 23:29:14 +0000 | [diff] [blame] | 8601 | GetPixelGray(image,q); |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8602 | number_transparent = 1; |
| 8603 | } |
| 8604 | |
| 8605 | for (i=0; i< (ssize_t) number_transparent; i++) |
| 8606 | { |
dirk | 68a6b50 | 2016-01-02 17:47:58 +0100 | [diff] [blame] | 8607 | if (Magick_png_color_equal(image,q,transparent+i)) |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8608 | break; |
| 8609 | } |
| 8610 | |
| 8611 | if (i == (ssize_t) number_transparent && |
| 8612 | number_transparent < 259) |
| 8613 | { |
| 8614 | number_transparent++; |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8615 | GetPixelInfoPixel(image,q,transparent+i); |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8616 | } |
| 8617 | } |
| 8618 | } |
| 8619 | else |
| 8620 | { |
| 8621 | if (number_semitransparent < 259) |
| 8622 | { |
| 8623 | if (number_semitransparent == 0) |
| 8624 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8625 | GetPixelInfoPixel(image,q,semitransparent); |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8626 | number_semitransparent = 1; |
| 8627 | } |
| 8628 | |
| 8629 | for (i=0; i< (ssize_t) number_semitransparent; i++) |
| 8630 | { |
dirk | 68a6b50 | 2016-01-02 17:47:58 +0100 | [diff] [blame] | 8631 | if (Magick_png_color_equal(image,q,semitransparent+i) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8632 | && GetPixelAlpha(image,q) == |
| 8633 | semitransparent[i].alpha) |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8634 | break; |
| 8635 | } |
| 8636 | |
| 8637 | if (i == (ssize_t) number_semitransparent && |
| 8638 | number_semitransparent < 259) |
| 8639 | { |
| 8640 | number_semitransparent++; |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8641 | GetPixelInfoPixel(image, q, semitransparent+i); |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8642 | } |
| 8643 | } |
| 8644 | } |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8645 | q+=GetPixelChannels(image); |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8646 | } |
| 8647 | } |
| 8648 | |
cristy | 4054bfb | 2011-08-29 23:41:39 +0000 | [diff] [blame] | 8649 | if (mng_info->write_png8 == MagickFalse && |
| 8650 | ping_exclude_bKGD == MagickFalse) |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8651 | { |
| 8652 | /* Add the background color to the palette, if it |
| 8653 | * isn't already there. |
| 8654 | */ |
glennrp | c6c391a | 2011-04-27 02:23:56 +0000 | [diff] [blame] | 8655 | if (logging != MagickFalse) |
| 8656 | { |
| 8657 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8658 | " Check colormap for background (%d,%d,%d)", |
| 8659 | (int) image->background_color.red, |
| 8660 | (int) image->background_color.green, |
| 8661 | (int) image->background_color.blue); |
| 8662 | } |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8663 | for (i=0; i<number_opaque; i++) |
| 8664 | { |
glennrp | ca7ad3a | 2011-04-26 04:44:54 +0000 | [diff] [blame] | 8665 | if (opaque[i].red == image->background_color.red && |
| 8666 | opaque[i].green == image->background_color.green && |
| 8667 | opaque[i].blue == image->background_color.blue) |
| 8668 | break; |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8669 | } |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8670 | if (number_opaque < 259 && i == number_opaque) |
| 8671 | { |
glennrp | 8e045c8 | 2011-04-27 16:40:27 +0000 | [diff] [blame] | 8672 | opaque[i] = image->background_color; |
glennrp | c6c391a | 2011-04-27 02:23:56 +0000 | [diff] [blame] | 8673 | ping_background.index = i; |
glennrp | 388a8c8 | 2012-06-27 13:41:51 +0000 | [diff] [blame] | 8674 | number_opaque++; |
glennrp | c6c391a | 2011-04-27 02:23:56 +0000 | [diff] [blame] | 8675 | if (logging != MagickFalse) |
| 8676 | { |
| 8677 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8678 | " background_color index is %d",(int) i); |
| 8679 | } |
| 8680 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8681 | } |
glennrp | a080bc3 | 2011-03-11 18:03:44 +0000 | [diff] [blame] | 8682 | else if (logging != MagickFalse) |
| 8683 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8684 | " No room in the colormap to add background color"); |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8685 | } |
| 8686 | |
| 8687 | image_colors=number_opaque+number_transparent+number_semitransparent; |
| 8688 | |
| 8689 | if (logging != MagickFalse) |
| 8690 | { |
| 8691 | if (image_colors > 256) |
| 8692 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8693 | " image has more than 256 colors"); |
| 8694 | |
| 8695 | else |
| 8696 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8697 | " image has %d colors",image_colors); |
| 8698 | } |
| 8699 | |
glennrp | 8d3d6e5 | 2011-04-19 04:39:51 +0000 | [diff] [blame] | 8700 | if (ping_preserve_colormap != MagickFalse) |
| 8701 | break; |
glennrp | 8d3d6e5 | 2011-04-19 04:39:51 +0000 | [diff] [blame] | 8702 | |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 8703 | if (mng_info->write_png_colortype != 7) /* We won't need this info */ |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8704 | { |
| 8705 | ping_have_color=MagickFalse; |
| 8706 | ping_have_non_bw=MagickFalse; |
| 8707 | |
glennrp | 45d4c34 | 2013-12-05 21:24:54 +0000 | [diff] [blame] | 8708 | if (IssRGBCompatibleColorspace(image->colorspace) == MagickFalse) |
glennrp | 0fa2580 | 2012-07-20 14:01:06 +0000 | [diff] [blame] | 8709 | { |
glennrp | 96bc620 | 2013-12-03 19:21:04 +0000 | [diff] [blame] | 8710 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8711 | "incompatible colorspace"); |
glennrp | 0fa2580 | 2012-07-20 14:01:06 +0000 | [diff] [blame] | 8712 | ping_have_color=MagickTrue; |
glennrp | 98b9577 | 2012-11-29 01:32:00 +0000 | [diff] [blame] | 8713 | ping_have_non_bw=MagickTrue; |
glennrp | 0fa2580 | 2012-07-20 14:01:06 +0000 | [diff] [blame] | 8714 | } |
| 8715 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8716 | if(image_colors > 256) |
| 8717 | { |
| 8718 | for (y=0; y < (ssize_t) image->rows; y++) |
| 8719 | { |
| 8720 | q=GetAuthenticPixels(image,0,y,image->columns,1,exception); |
| 8721 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8722 | if (q == (Quantum *) NULL) |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8723 | break; |
| 8724 | |
glennrp | e5e6b80 | 2011-07-20 14:44:40 +0000 | [diff] [blame] | 8725 | s=q; |
| 8726 | for (x=0; x < (ssize_t) image->columns; x++) |
| 8727 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8728 | if (GetPixelRed(image,s) != GetPixelGreen(image,s) || |
| 8729 | GetPixelRed(image,s) != GetPixelBlue(image,s)) |
glennrp | e5e6b80 | 2011-07-20 14:44:40 +0000 | [diff] [blame] | 8730 | { |
| 8731 | ping_have_color=MagickTrue; |
| 8732 | ping_have_non_bw=MagickTrue; |
| 8733 | break; |
| 8734 | } |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8735 | s+=GetPixelChannels(image); |
glennrp | e5e6b80 | 2011-07-20 14:44:40 +0000 | [diff] [blame] | 8736 | } |
| 8737 | |
| 8738 | if (ping_have_color != MagickFalse) |
| 8739 | break; |
| 8740 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8741 | /* Worst case is black-and-white; we are looking at every |
| 8742 | * pixel twice. |
| 8743 | */ |
| 8744 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8745 | if (ping_have_non_bw == MagickFalse) |
| 8746 | { |
| 8747 | s=q; |
| 8748 | for (x=0; x < (ssize_t) image->columns; x++) |
| 8749 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8750 | if (GetPixelRed(image,s) != 0 && |
| 8751 | GetPixelRed(image,s) != QuantumRange) |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8752 | { |
| 8753 | ping_have_non_bw=MagickTrue; |
glennrp | e5e6b80 | 2011-07-20 14:44:40 +0000 | [diff] [blame] | 8754 | break; |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8755 | } |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8756 | s+=GetPixelChannels(image); |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8757 | } |
glennrp | e5e6b80 | 2011-07-20 14:44:40 +0000 | [diff] [blame] | 8758 | } |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8759 | } |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 8760 | } |
| 8761 | } |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8762 | |
| 8763 | if (image_colors < 257) |
| 8764 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8765 | PixelInfo |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8766 | colormap[260]; |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 8767 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8768 | /* |
| 8769 | * Initialize image colormap. |
glennrp | 97fd3d0 | 2011-02-23 14:58:06 +0000 | [diff] [blame] | 8770 | */ |
| 8771 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8772 | if (logging != MagickFalse) |
| 8773 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8774 | " Sort the new colormap"); |
glennrp | 8d57966 | 2011-02-23 02:05:02 +0000 | [diff] [blame] | 8775 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8776 | /* Sort palette, transparent first */; |
| 8777 | |
| 8778 | n = 0; |
| 8779 | |
| 8780 | for (i=0; i<number_transparent; i++) |
| 8781 | colormap[n++] = transparent[i]; |
| 8782 | |
| 8783 | for (i=0; i<number_semitransparent; i++) |
| 8784 | colormap[n++] = semitransparent[i]; |
| 8785 | |
| 8786 | for (i=0; i<number_opaque; i++) |
| 8787 | colormap[n++] = opaque[i]; |
| 8788 | |
glennrp | c6c391a | 2011-04-27 02:23:56 +0000 | [diff] [blame] | 8789 | ping_background.index += |
| 8790 | (number_transparent + number_semitransparent); |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 8791 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8792 | /* image_colors < 257; search the colormap instead of the pixels |
| 8793 | * to get ping_have_color and ping_have_non_bw |
| 8794 | */ |
| 8795 | for (i=0; i<n; i++) |
| 8796 | { |
| 8797 | if (ping_have_color == MagickFalse) |
glennrp | 8d57966 | 2011-02-23 02:05:02 +0000 | [diff] [blame] | 8798 | { |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8799 | if (colormap[i].red != colormap[i].green || |
| 8800 | colormap[i].red != colormap[i].blue) |
| 8801 | { |
| 8802 | ping_have_color=MagickTrue; |
| 8803 | ping_have_non_bw=MagickTrue; |
| 8804 | break; |
| 8805 | } |
| 8806 | } |
| 8807 | |
| 8808 | if (ping_have_non_bw == MagickFalse) |
| 8809 | { |
| 8810 | if (colormap[i].red != 0 && colormap[i].red != QuantumRange) |
glennrp | 8d57966 | 2011-02-23 02:05:02 +0000 | [diff] [blame] | 8811 | ping_have_non_bw=MagickTrue; |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 8812 | } |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 8813 | } |
| 8814 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8815 | if ((mng_info->ping_exclude_tRNS == MagickFalse || |
| 8816 | (number_transparent == 0 && number_semitransparent == 0)) && |
| 8817 | (((mng_info->write_png_colortype-1) == |
| 8818 | PNG_COLOR_TYPE_PALETTE) || |
| 8819 | (mng_info->write_png_colortype == 0))) |
| 8820 | { |
glennrp | 6185c53 | 2011-01-14 17:58:40 +0000 | [diff] [blame] | 8821 | if (logging != MagickFalse) |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 8822 | { |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8823 | if (n != (ssize_t) image_colors) |
| 8824 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8825 | " image_colors (%d) and n (%d) don't match", |
| 8826 | image_colors, n); |
glennrp | 6185c53 | 2011-01-14 17:58:40 +0000 | [diff] [blame] | 8827 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8828 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8829 | " AcquireImageColormap"); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 8830 | } |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 8831 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8832 | image->colors = image_colors; |
| 8833 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8834 | if (AcquireImageColormap(image,image_colors,exception) == |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8835 | MagickFalse) |
glennrp | 3faa9a3 | 2011-04-23 14:00:25 +0000 | [diff] [blame] | 8836 | ThrowWriterException(ResourceLimitError, |
| 8837 | "MemoryAllocationFailed"); |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8838 | |
| 8839 | for (i=0; i< (ssize_t) image_colors; i++) |
| 8840 | image->colormap[i] = colormap[i]; |
| 8841 | |
| 8842 | if (logging != MagickFalse) |
glennrp | 6185c53 | 2011-01-14 17:58:40 +0000 | [diff] [blame] | 8843 | { |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8844 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8845 | " image->colors=%d (%d)", |
| 8846 | (int) image->colors, image_colors); |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 8847 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8848 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8849 | " Update the pixel indexes"); |
| 8850 | } |
glennrp | 6185c53 | 2011-01-14 17:58:40 +0000 | [diff] [blame] | 8851 | |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 8852 | /* Sync the pixel indices with the new colormap */ |
| 8853 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8854 | for (y=0; y < (ssize_t) image->rows; y++) |
| 8855 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8856 | q=GetAuthenticPixels(image,0,y,image->columns,1,exception); |
glennrp | 6185c53 | 2011-01-14 17:58:40 +0000 | [diff] [blame] | 8857 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8858 | if (q == (Quantum *) NULL) |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8859 | break; |
glennrp | 6185c53 | 2011-01-14 17:58:40 +0000 | [diff] [blame] | 8860 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8861 | for (x=0; x < (ssize_t) image->columns; x++) |
glennrp | 6185c53 | 2011-01-14 17:58:40 +0000 | [diff] [blame] | 8862 | { |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8863 | for (i=0; i< (ssize_t) image_colors; i++) |
glennrp | 6185c53 | 2011-01-14 17:58:40 +0000 | [diff] [blame] | 8864 | { |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 8865 | if ((image->alpha_trait == UndefinedPixelTrait || |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8866 | image->colormap[i].alpha == GetPixelAlpha(image,q)) && |
| 8867 | image->colormap[i].red == GetPixelRed(image,q) && |
| 8868 | image->colormap[i].green == GetPixelGreen(image,q) && |
| 8869 | image->colormap[i].blue == GetPixelBlue(image,q)) |
glennrp | 6185c53 | 2011-01-14 17:58:40 +0000 | [diff] [blame] | 8870 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8871 | SetPixelIndex(image,i,q); |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8872 | break; |
glennrp | 6185c53 | 2011-01-14 17:58:40 +0000 | [diff] [blame] | 8873 | } |
glennrp | 6185c53 | 2011-01-14 17:58:40 +0000 | [diff] [blame] | 8874 | } |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8875 | q+=GetPixelChannels(image); |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8876 | } |
glennrp | 6185c53 | 2011-01-14 17:58:40 +0000 | [diff] [blame] | 8877 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8878 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 8879 | break; |
| 8880 | } |
| 8881 | } |
| 8882 | } |
| 8883 | |
| 8884 | if (logging != MagickFalse) |
| 8885 | { |
| 8886 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8887 | " image->colors=%d", (int) image->colors); |
| 8888 | |
| 8889 | if (image->colormap != NULL) |
| 8890 | { |
| 8891 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8892 | " i (red,green,blue,alpha)"); |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8893 | |
| 8894 | for (i=0; i < (ssize_t) image->colors; i++) |
| 8895 | { |
cristy | 7298848 | 2011-03-29 16:34:38 +0000 | [diff] [blame] | 8896 | if (i < 300 || i >= (ssize_t) image->colors - 10) |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8897 | { |
| 8898 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8899 | " %d (%d,%d,%d,%d)", |
| 8900 | (int) i, |
| 8901 | (int) image->colormap[i].red, |
| 8902 | (int) image->colormap[i].green, |
| 8903 | (int) image->colormap[i].blue, |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8904 | (int) image->colormap[i].alpha); |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8905 | } |
glennrp | 6185c53 | 2011-01-14 17:58:40 +0000 | [diff] [blame] | 8906 | } |
| 8907 | } |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 8908 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8909 | if (number_transparent < 257) |
| 8910 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8911 | " number_transparent = %d", |
| 8912 | number_transparent); |
| 8913 | else |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 8914 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8915 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8916 | " number_transparent > 256"); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 8917 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8918 | if (number_opaque < 257) |
| 8919 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8920 | " number_opaque = %d", |
| 8921 | number_opaque); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 8922 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8923 | else |
| 8924 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8925 | " number_opaque > 256"); |
glennrp | 6185c53 | 2011-01-14 17:58:40 +0000 | [diff] [blame] | 8926 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8927 | if (number_semitransparent < 257) |
| 8928 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8929 | " number_semitransparent = %d", |
| 8930 | number_semitransparent); |
glennrp | 6185c53 | 2011-01-14 17:58:40 +0000 | [diff] [blame] | 8931 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8932 | else |
| 8933 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8934 | " number_semitransparent > 256"); |
glennrp | a6a0663 | 2011-01-19 15:15:34 +0000 | [diff] [blame] | 8935 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8936 | if (ping_have_non_bw == MagickFalse) |
| 8937 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8938 | " All pixels and the background are black or white"); |
glennrp | a6a0663 | 2011-01-19 15:15:34 +0000 | [diff] [blame] | 8939 | |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8940 | else if (ping_have_color == MagickFalse) |
| 8941 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8942 | " All pixels and the background are gray"); |
| 8943 | |
| 8944 | else |
| 8945 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8946 | " At least one pixel or the background is non-gray"); |
glennrp | 6185c53 | 2011-01-14 17:58:40 +0000 | [diff] [blame] | 8947 | |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 8948 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8949 | " Exit BUILD_PALETTE:"); |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 8950 | } |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 8951 | |
glennrp | c8c2f06 | 2011-02-25 19:00:33 +0000 | [diff] [blame] | 8952 | if (mng_info->write_png8 == MagickFalse) |
| 8953 | break; |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 8954 | |
glennrp | c8c2f06 | 2011-02-25 19:00:33 +0000 | [diff] [blame] | 8955 | /* Make any reductions necessary for the PNG8 format */ |
| 8956 | if (image_colors <= 256 && |
| 8957 | image_colors != 0 && image->colormap != NULL && |
| 8958 | number_semitransparent == 0 && |
| 8959 | number_transparent <= 1) |
| 8960 | break; |
| 8961 | |
| 8962 | /* PNG8 can't have semitransparent colors so we threshold the |
glennrp | 130fc45 | 2011-08-20 03:43:18 +0000 | [diff] [blame] | 8963 | * opacity to 0 or OpaqueOpacity, and PNG8 can only have one |
| 8964 | * transparent color so if more than one is transparent we merge |
| 8965 | * them into image->background_color. |
glennrp | c8c2f06 | 2011-02-25 19:00:33 +0000 | [diff] [blame] | 8966 | */ |
glennrp | 130fc45 | 2011-08-20 03:43:18 +0000 | [diff] [blame] | 8967 | if (number_semitransparent != 0 || number_transparent > 1) |
glennrp | c8c2f06 | 2011-02-25 19:00:33 +0000 | [diff] [blame] | 8968 | { |
| 8969 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 8970 | " Thresholding the alpha channel to binary"); |
| 8971 | |
| 8972 | for (y=0; y < (ssize_t) image->rows; y++) |
| 8973 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8974 | r=GetAuthenticPixels(image,0,y,image->columns,1,exception); |
glennrp | c8c2f06 | 2011-02-25 19:00:33 +0000 | [diff] [blame] | 8975 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8976 | if (r == (Quantum *) NULL) |
glennrp | c8c2f06 | 2011-02-25 19:00:33 +0000 | [diff] [blame] | 8977 | break; |
| 8978 | |
| 8979 | for (x=0; x < (ssize_t) image->columns; x++) |
| 8980 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8981 | if (GetPixelAlpha(image,r) < OpaqueAlpha/2) |
glennrp | 8ca51ad | 2011-05-12 21:22:32 +0000 | [diff] [blame] | 8982 | { |
cristy | 11a06d3 | 2015-01-04 12:03:27 +0000 | [diff] [blame] | 8983 | SetPixelViaPixelInfo(image,&image->background_color,r); |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8984 | SetPixelAlpha(image,TransparentAlpha,r); |
glennrp | 8ca51ad | 2011-05-12 21:22:32 +0000 | [diff] [blame] | 8985 | } |
| 8986 | else |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8987 | SetPixelAlpha(image,OpaqueAlpha,r); |
| 8988 | r+=GetPixelChannels(image); |
glennrp | c8c2f06 | 2011-02-25 19:00:33 +0000 | [diff] [blame] | 8989 | } |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 8990 | |
glennrp | c8c2f06 | 2011-02-25 19:00:33 +0000 | [diff] [blame] | 8991 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 8992 | break; |
| 8993 | |
| 8994 | if (image_colors != 0 && image_colors <= 256 && |
| 8995 | image->colormap != NULL) |
| 8996 | for (i=0; i<image_colors; i++) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 8997 | image->colormap[i].alpha = |
| 8998 | (image->colormap[i].alpha > TransparentAlpha/2 ? |
| 8999 | TransparentAlpha : OpaqueAlpha); |
glennrp | c8c2f06 | 2011-02-25 19:00:33 +0000 | [diff] [blame] | 9000 | } |
| 9001 | continue; |
| 9002 | } |
| 9003 | |
| 9004 | /* PNG8 can't have more than 256 colors so we quantize the pixels and |
glennrp | e9637cb | 2011-03-24 16:34:37 +0000 | [diff] [blame] | 9005 | * background color to the 4-4-4-1, 3-3-3-1 or 3-3-2-1 palette. If the |
| 9006 | * image is mostly gray, the 4-4-4-1 palette is likely to end up with 256 |
| 9007 | * colors or less. |
glennrp | c8c2f06 | 2011-02-25 19:00:33 +0000 | [diff] [blame] | 9008 | */ |
glennrp | d337164 | 2011-03-22 19:42:23 +0000 | [diff] [blame] | 9009 | if (tried_444 == MagickFalse && (image_colors == 0 || image_colors > 256)) |
| 9010 | { |
| 9011 | if (logging != MagickFalse) |
| 9012 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 9013 | " Quantizing the background color to 4-4-4"); |
| 9014 | |
| 9015 | tried_444 = MagickTrue; |
| 9016 | |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 9017 | LBR04PacketRGB(image->background_color); |
glennrp | d337164 | 2011-03-22 19:42:23 +0000 | [diff] [blame] | 9018 | |
| 9019 | if (logging != MagickFalse) |
| 9020 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 9021 | " Quantizing the pixel colors to 4-4-4"); |
| 9022 | |
| 9023 | if (image->colormap == NULL) |
| 9024 | { |
| 9025 | for (y=0; y < (ssize_t) image->rows; y++) |
| 9026 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9027 | r=GetAuthenticPixels(image,0,y,image->columns,1,exception); |
glennrp | d337164 | 2011-03-22 19:42:23 +0000 | [diff] [blame] | 9028 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9029 | if (r == (Quantum *) NULL) |
glennrp | d337164 | 2011-03-22 19:42:23 +0000 | [diff] [blame] | 9030 | break; |
| 9031 | |
| 9032 | for (x=0; x < (ssize_t) image->columns; x++) |
| 9033 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9034 | if (GetPixelAlpha(image,r) == OpaqueAlpha) |
glennrp | 54cf797 | 2011-08-06 14:28:09 +0000 | [diff] [blame] | 9035 | LBR04PixelRGB(r); |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9036 | r+=GetPixelChannels(image); |
glennrp | d337164 | 2011-03-22 19:42:23 +0000 | [diff] [blame] | 9037 | } |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 9038 | |
glennrp | d337164 | 2011-03-22 19:42:23 +0000 | [diff] [blame] | 9039 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 9040 | break; |
| 9041 | } |
| 9042 | } |
| 9043 | |
| 9044 | else /* Should not reach this; colormap already exists and |
| 9045 | must be <= 256 */ |
| 9046 | { |
| 9047 | if (logging != MagickFalse) |
| 9048 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 9049 | " Quantizing the colormap to 4-4-4"); |
glennrp | 8e58efd | 2011-05-20 12:16:29 +0000 | [diff] [blame] | 9050 | |
glennrp | d337164 | 2011-03-22 19:42:23 +0000 | [diff] [blame] | 9051 | for (i=0; i<image_colors; i++) |
| 9052 | { |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 9053 | LBR04PacketRGB(image->colormap[i]); |
glennrp | d337164 | 2011-03-22 19:42:23 +0000 | [diff] [blame] | 9054 | } |
| 9055 | } |
| 9056 | continue; |
| 9057 | } |
| 9058 | |
glennrp | 82b3c53 | 2011-03-22 19:20:54 +0000 | [diff] [blame] | 9059 | if (tried_333 == MagickFalse && (image_colors == 0 || image_colors > 256)) |
| 9060 | { |
| 9061 | if (logging != MagickFalse) |
| 9062 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 9063 | " Quantizing the background color to 3-3-3"); |
| 9064 | |
| 9065 | tried_333 = MagickTrue; |
| 9066 | |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 9067 | LBR03PacketRGB(image->background_color); |
glennrp | 82b3c53 | 2011-03-22 19:20:54 +0000 | [diff] [blame] | 9068 | |
| 9069 | if (logging != MagickFalse) |
| 9070 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | e9637cb | 2011-03-24 16:34:37 +0000 | [diff] [blame] | 9071 | " Quantizing the pixel colors to 3-3-3-1"); |
glennrp | 82b3c53 | 2011-03-22 19:20:54 +0000 | [diff] [blame] | 9072 | |
| 9073 | if (image->colormap == NULL) |
| 9074 | { |
| 9075 | for (y=0; y < (ssize_t) image->rows; y++) |
| 9076 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9077 | r=GetAuthenticPixels(image,0,y,image->columns,1,exception); |
glennrp | 82b3c53 | 2011-03-22 19:20:54 +0000 | [diff] [blame] | 9078 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9079 | if (r == (Quantum *) NULL) |
glennrp | 82b3c53 | 2011-03-22 19:20:54 +0000 | [diff] [blame] | 9080 | break; |
| 9081 | |
| 9082 | for (x=0; x < (ssize_t) image->columns; x++) |
| 9083 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9084 | if (GetPixelAlpha(image,r) == OpaqueAlpha) |
| 9085 | LBR03RGB(r); |
| 9086 | r+=GetPixelChannels(image); |
glennrp | 82b3c53 | 2011-03-22 19:20:54 +0000 | [diff] [blame] | 9087 | } |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 9088 | |
glennrp | 82b3c53 | 2011-03-22 19:20:54 +0000 | [diff] [blame] | 9089 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 9090 | break; |
| 9091 | } |
| 9092 | } |
| 9093 | |
| 9094 | else /* Should not reach this; colormap already exists and |
| 9095 | must be <= 256 */ |
| 9096 | { |
| 9097 | if (logging != MagickFalse) |
| 9098 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | e9637cb | 2011-03-24 16:34:37 +0000 | [diff] [blame] | 9099 | " Quantizing the colormap to 3-3-3-1"); |
glennrp | 82b3c53 | 2011-03-22 19:20:54 +0000 | [diff] [blame] | 9100 | for (i=0; i<image_colors; i++) |
| 9101 | { |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 9102 | LBR03PacketRGB(image->colormap[i]); |
glennrp | 82b3c53 | 2011-03-22 19:20:54 +0000 | [diff] [blame] | 9103 | } |
glennrp | d337164 | 2011-03-22 19:42:23 +0000 | [diff] [blame] | 9104 | } |
| 9105 | continue; |
glennrp | 82b3c53 | 2011-03-22 19:20:54 +0000 | [diff] [blame] | 9106 | } |
glennrp | c8c2f06 | 2011-02-25 19:00:33 +0000 | [diff] [blame] | 9107 | |
glennrp | 8ca51ad | 2011-05-12 21:22:32 +0000 | [diff] [blame] | 9108 | if (tried_332 == MagickFalse && (image_colors == 0 || image_colors > 256)) |
glennrp | c8c2f06 | 2011-02-25 19:00:33 +0000 | [diff] [blame] | 9109 | { |
| 9110 | if (logging != MagickFalse) |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 9111 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | c8c2f06 | 2011-02-25 19:00:33 +0000 | [diff] [blame] | 9112 | " Quantizing the background color to 3-3-2"); |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 9113 | |
glennrp | 8ca51ad | 2011-05-12 21:22:32 +0000 | [diff] [blame] | 9114 | tried_332 = MagickTrue; |
| 9115 | |
glennrp | 3faa9a3 | 2011-04-23 14:00:25 +0000 | [diff] [blame] | 9116 | /* Red and green were already done so we only quantize the blue |
| 9117 | * channel |
| 9118 | */ |
| 9119 | |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 9120 | LBR02PacketBlue(image->background_color); |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 9121 | |
glennrp | c8c2f06 | 2011-02-25 19:00:33 +0000 | [diff] [blame] | 9122 | if (logging != MagickFalse) |
| 9123 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | e9637cb | 2011-03-24 16:34:37 +0000 | [diff] [blame] | 9124 | " Quantizing the pixel colors to 3-3-2-1"); |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 9125 | |
glennrp | c8c2f06 | 2011-02-25 19:00:33 +0000 | [diff] [blame] | 9126 | if (image->colormap == NULL) |
| 9127 | { |
| 9128 | for (y=0; y < (ssize_t) image->rows; y++) |
| 9129 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9130 | r=GetAuthenticPixels(image,0,y,image->columns,1,exception); |
glennrp | c8c2f06 | 2011-02-25 19:00:33 +0000 | [diff] [blame] | 9131 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9132 | if (r == (Quantum *) NULL) |
glennrp | c8c2f06 | 2011-02-25 19:00:33 +0000 | [diff] [blame] | 9133 | break; |
| 9134 | |
| 9135 | for (x=0; x < (ssize_t) image->columns; x++) |
| 9136 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9137 | if (GetPixelAlpha(image,r) == OpaqueAlpha) |
glennrp | 54cf797 | 2011-08-06 14:28:09 +0000 | [diff] [blame] | 9138 | LBR02PixelBlue(r); |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9139 | r+=GetPixelChannels(image); |
glennrp | c8c2f06 | 2011-02-25 19:00:33 +0000 | [diff] [blame] | 9140 | } |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 9141 | |
glennrp | c8c2f06 | 2011-02-25 19:00:33 +0000 | [diff] [blame] | 9142 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 9143 | break; |
| 9144 | } |
| 9145 | } |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 9146 | |
glennrp | c8c2f06 | 2011-02-25 19:00:33 +0000 | [diff] [blame] | 9147 | else /* Should not reach this; colormap already exists and |
| 9148 | must be <= 256 */ |
| 9149 | { |
| 9150 | if (logging != MagickFalse) |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 9151 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | e9637cb | 2011-03-24 16:34:37 +0000 | [diff] [blame] | 9152 | " Quantizing the colormap to 3-3-2-1"); |
glennrp | c8c2f06 | 2011-02-25 19:00:33 +0000 | [diff] [blame] | 9153 | for (i=0; i<image_colors; i++) |
| 9154 | { |
glennrp | 91d9925 | 2011-06-25 14:30:13 +0000 | [diff] [blame] | 9155 | LBR02PacketBlue(image->colormap[i]); |
glennrp | c8c2f06 | 2011-02-25 19:00:33 +0000 | [diff] [blame] | 9156 | } |
| 9157 | } |
| 9158 | continue; |
| 9159 | } |
glennrp | 8ca51ad | 2011-05-12 21:22:32 +0000 | [diff] [blame] | 9160 | |
| 9161 | if (image_colors == 0 || image_colors > 256) |
| 9162 | { |
glennrp | 34ef720 | 2013-09-27 17:36:53 +0000 | [diff] [blame] | 9163 | /* Take care of special case with 256 opaque colors + 1 transparent |
glennrp | 8ca51ad | 2011-05-12 21:22:32 +0000 | [diff] [blame] | 9164 | * color. We don't need to quantize to 2-3-2-1; we only need to |
| 9165 | * eliminate one color, so we'll merge the two darkest red |
| 9166 | * colors (0x49, 0, 0) -> (0x24, 0, 0). |
| 9167 | */ |
glennrp | 34ef720 | 2013-09-27 17:36:53 +0000 | [diff] [blame] | 9168 | if (logging != MagickFalse) |
| 9169 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 9170 | " Merging two dark red background colors to 3-3-2-1"); |
| 9171 | |
glennrp | 8ca51ad | 2011-05-12 21:22:32 +0000 | [diff] [blame] | 9172 | if (ScaleQuantumToChar(image->background_color.red) == 0x49 && |
| 9173 | ScaleQuantumToChar(image->background_color.green) == 0x00 && |
| 9174 | ScaleQuantumToChar(image->background_color.blue) == 0x00) |
| 9175 | { |
| 9176 | image->background_color.red=ScaleCharToQuantum(0x24); |
| 9177 | } |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 9178 | |
glennrp | 34ef720 | 2013-09-27 17:36:53 +0000 | [diff] [blame] | 9179 | if (logging != MagickFalse) |
| 9180 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 9181 | " Merging two dark red pixel colors to 3-3-2-1"); |
| 9182 | |
glennrp | 8ca51ad | 2011-05-12 21:22:32 +0000 | [diff] [blame] | 9183 | if (image->colormap == NULL) |
| 9184 | { |
| 9185 | for (y=0; y < (ssize_t) image->rows; y++) |
| 9186 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9187 | r=GetAuthenticPixels(image,0,y,image->columns,1,exception); |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 9188 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9189 | if (r == (Quantum *) NULL) |
glennrp | 8ca51ad | 2011-05-12 21:22:32 +0000 | [diff] [blame] | 9190 | break; |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 9191 | |
glennrp | 8ca51ad | 2011-05-12 21:22:32 +0000 | [diff] [blame] | 9192 | for (x=0; x < (ssize_t) image->columns; x++) |
| 9193 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9194 | if (ScaleQuantumToChar(GetPixelRed(image,r)) == 0x49 && |
| 9195 | ScaleQuantumToChar(GetPixelGreen(image,r)) == 0x00 && |
| 9196 | ScaleQuantumToChar(GetPixelBlue(image,r)) == 0x00 && |
| 9197 | GetPixelAlpha(image,r) == OpaqueAlpha) |
glennrp | 8ca51ad | 2011-05-12 21:22:32 +0000 | [diff] [blame] | 9198 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9199 | SetPixelRed(image,ScaleCharToQuantum(0x24),r); |
glennrp | 8ca51ad | 2011-05-12 21:22:32 +0000 | [diff] [blame] | 9200 | } |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9201 | r+=GetPixelChannels(image); |
glennrp | 8ca51ad | 2011-05-12 21:22:32 +0000 | [diff] [blame] | 9202 | } |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 9203 | |
glennrp | 8ca51ad | 2011-05-12 21:22:32 +0000 | [diff] [blame] | 9204 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 9205 | break; |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 9206 | |
glennrp | 8ca51ad | 2011-05-12 21:22:32 +0000 | [diff] [blame] | 9207 | } |
| 9208 | } |
| 9209 | |
| 9210 | else |
| 9211 | { |
| 9212 | for (i=0; i<image_colors; i++) |
| 9213 | { |
| 9214 | if (ScaleQuantumToChar(image->colormap[i].red) == 0x49 && |
| 9215 | ScaleQuantumToChar(image->colormap[i].green) == 0x00 && |
| 9216 | ScaleQuantumToChar(image->colormap[i].blue) == 0x00) |
| 9217 | { |
| 9218 | image->colormap[i].red=ScaleCharToQuantum(0x24); |
| 9219 | } |
| 9220 | } |
| 9221 | } |
| 9222 | } |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 9223 | } |
glennrp | a8036d6 | 2012-11-04 01:46:06 +0000 | [diff] [blame] | 9224 | } |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 9225 | /* END OF BUILD_PALETTE */ |
glennrp | 3c21811 | 2010-11-27 15:31:26 +0000 | [diff] [blame] | 9226 | |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 9227 | /* If we are excluding the tRNS chunk and there is transparency, |
| 9228 | * then we must write a Gray-Alpha (color-type 4) or RGBA (color-type 6) |
| 9229 | * PNG. |
glennrp | 8d57966 | 2011-02-23 02:05:02 +0000 | [diff] [blame] | 9230 | */ |
glennrp | 0e8ea19 | 2010-12-24 18:00:33 +0000 | [diff] [blame] | 9231 | if (mng_info->ping_exclude_tRNS != MagickFalse && |
| 9232 | (number_transparent != 0 || number_semitransparent != 0)) |
| 9233 | { |
glennrp | d17915c | 2011-04-29 14:24:22 +0000 | [diff] [blame] | 9234 | unsigned int colortype=mng_info->write_png_colortype; |
glennrp | 0e8ea19 | 2010-12-24 18:00:33 +0000 | [diff] [blame] | 9235 | |
| 9236 | if (ping_have_color == MagickFalse) |
| 9237 | mng_info->write_png_colortype = 5; |
| 9238 | |
| 9239 | else |
| 9240 | mng_info->write_png_colortype = 7; |
| 9241 | |
glennrp | 8d57966 | 2011-02-23 02:05:02 +0000 | [diff] [blame] | 9242 | if (colortype != 0 && |
glennrp | d17915c | 2011-04-29 14:24:22 +0000 | [diff] [blame] | 9243 | mng_info->write_png_colortype != colortype) |
glennrp | 0e8ea19 | 2010-12-24 18:00:33 +0000 | [diff] [blame] | 9244 | ping_need_colortype_warning=MagickTrue; |
glennrp | 0b206f5 | 2011-01-07 04:55:32 +0000 | [diff] [blame] | 9245 | |
glennrp | 0e8ea19 | 2010-12-24 18:00:33 +0000 | [diff] [blame] | 9246 | } |
| 9247 | |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 9248 | /* See if cheap transparency is possible. It is only possible |
| 9249 | * when there is a single transparent color, no semitransparent |
| 9250 | * color, and no opaque color that has the same RGB components |
glennrp | 5a39f37 | 2011-02-25 04:52:16 +0000 | [diff] [blame] | 9251 | * as the transparent color. We only need this information if |
| 9252 | * we are writing a PNG with colortype 0 or 2, and we have not |
| 9253 | * excluded the tRNS chunk. |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 9254 | */ |
glennrp | 5a39f37 | 2011-02-25 04:52:16 +0000 | [diff] [blame] | 9255 | if (number_transparent == 1 && |
| 9256 | mng_info->write_png_colortype < 4) |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 9257 | { |
| 9258 | ping_have_cheap_transparency = MagickTrue; |
| 9259 | |
| 9260 | if (number_semitransparent != 0) |
| 9261 | ping_have_cheap_transparency = MagickFalse; |
| 9262 | |
| 9263 | else if (image_colors == 0 || image_colors > 256 || |
| 9264 | image->colormap == NULL) |
| 9265 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9266 | register const Quantum |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 9267 | *q; |
| 9268 | |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 9269 | for (y=0; y < (ssize_t) image->rows; y++) |
| 9270 | { |
| 9271 | q=GetVirtualPixels(image,0,y,image->columns,1, exception); |
| 9272 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9273 | if (q == (Quantum *) NULL) |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 9274 | break; |
| 9275 | |
| 9276 | for (x=0; x < (ssize_t) image->columns; x++) |
| 9277 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9278 | if (GetPixelAlpha(image,q) != TransparentAlpha && |
| 9279 | (unsigned short) GetPixelRed(image,q) == |
| 9280 | ping_trans_color.red && |
| 9281 | (unsigned short) GetPixelGreen(image,q) == |
| 9282 | ping_trans_color.green && |
| 9283 | (unsigned short) GetPixelBlue(image,q) == |
| 9284 | ping_trans_color.blue) |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 9285 | { |
| 9286 | ping_have_cheap_transparency = MagickFalse; |
| 9287 | break; |
| 9288 | } |
| 9289 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9290 | q+=GetPixelChannels(image); |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 9291 | } |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 9292 | |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 9293 | if (ping_have_cheap_transparency == MagickFalse) |
| 9294 | break; |
| 9295 | } |
| 9296 | } |
| 9297 | else |
| 9298 | { |
glennrp | 67b9c1a | 2011-04-22 18:47:36 +0000 | [diff] [blame] | 9299 | /* Assuming that image->colormap[0] is the one transparent color |
| 9300 | * and that all others are opaque. |
| 9301 | */ |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 9302 | if (image_colors > 1) |
glennrp | 67b9c1a | 2011-04-22 18:47:36 +0000 | [diff] [blame] | 9303 | for (i=1; i<image_colors; i++) |
| 9304 | if (image->colormap[i].red == image->colormap[0].red && |
| 9305 | image->colormap[i].green == image->colormap[0].green && |
| 9306 | image->colormap[i].blue == image->colormap[0].blue) |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 9307 | { |
glennrp | 67b9c1a | 2011-04-22 18:47:36 +0000 | [diff] [blame] | 9308 | ping_have_cheap_transparency = MagickFalse; |
| 9309 | break; |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 9310 | } |
| 9311 | } |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 9312 | |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 9313 | if (logging != MagickFalse) |
| 9314 | { |
| 9315 | if (ping_have_cheap_transparency == MagickFalse) |
| 9316 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 9317 | " Cheap transparency is not possible."); |
| 9318 | |
| 9319 | else |
| 9320 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 9321 | " Cheap transparency is possible."); |
| 9322 | } |
| 9323 | } |
| 9324 | else |
| 9325 | ping_have_cheap_transparency = MagickFalse; |
| 9326 | |
glennrp | 8640fb5 | 2010-11-23 15:48:26 +0000 | [diff] [blame] | 9327 | image_depth=image->depth; |
| 9328 | |
glennrp | 26c990a | 2010-11-23 02:23:20 +0000 | [diff] [blame] | 9329 | quantum_info = (QuantumInfo *) NULL; |
| 9330 | number_colors=0; |
glennrp | f09bded | 2011-01-08 01:15:59 +0000 | [diff] [blame] | 9331 | image_colors=(int) image->colors; |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 9332 | image_matte=image->alpha_trait != UndefinedPixelTrait ? MagickTrue : MagickFalse; |
glennrp | 26c990a | 2010-11-23 02:23:20 +0000 | [diff] [blame] | 9333 | |
glennrp | 48c2062 | 2014-04-23 01:00:37 +0000 | [diff] [blame] | 9334 | if (mng_info->write_png_colortype < 5) |
glennrp | 197c8e6 | 2014-04-22 23:45:20 +0000 | [diff] [blame] | 9335 | mng_info->IsPalette=image->storage_class == PseudoClass && |
| 9336 | image_colors <= 256 && image->colormap != NULL; |
| 9337 | else |
| 9338 | mng_info->IsPalette = MagickFalse; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9339 | |
glennrp | 52a479c | 2011-02-26 21:14:38 +0000 | [diff] [blame] | 9340 | if ((mng_info->write_png_colortype == 4 || mng_info->write_png8) && |
| 9341 | (image->colors == 0 || image->colormap == NULL)) |
| 9342 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9343 | image_info=DestroyImageInfo(image_info); |
| 9344 | image=DestroyImage(image); |
| 9345 | (void) ThrowMagickException(exception,GetMagickModule(),CoderError, |
glennrp | 15e0155 | 2011-03-06 23:29:17 +0000 | [diff] [blame] | 9346 | "Cannot write PNG8 or color-type 3; colormap is NULL", |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9347 | "`%s'",IMimage->filename); |
glennrp | 52a479c | 2011-02-26 21:14:38 +0000 | [diff] [blame] | 9348 | return(MagickFalse); |
| 9349 | } |
| 9350 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9351 | /* |
| 9352 | Allocate the PNG structures |
| 9353 | */ |
| 9354 | #ifdef PNG_USER_MEM_SUPPORTED |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9355 | error_info.image=image; |
| 9356 | error_info.exception=exception; |
glennrp | 3e0971d | 2014-11-06 12:59:43 +0000 | [diff] [blame] | 9357 | ping=png_create_write_struct_2(PNG_LIBPNG_VER_STRING,&error_info, |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 9358 | MagickPNGErrorHandler,MagickPNGWarningHandler,(void *) NULL, |
| 9359 | (png_malloc_ptr) Magick_png_malloc,(png_free_ptr) Magick_png_free); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9360 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9361 | #else |
glennrp | 3e0971d | 2014-11-06 12:59:43 +0000 | [diff] [blame] | 9362 | ping=png_create_write_struct(PNG_LIBPNG_VER_STRING,&error_info, |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 9363 | MagickPNGErrorHandler,MagickPNGWarningHandler); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9364 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9365 | #endif |
| 9366 | if (ping == (png_struct *) NULL) |
| 9367 | ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9368 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9369 | ping_info=png_create_info_struct(ping); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9370 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9371 | if (ping_info == (png_info *) NULL) |
| 9372 | { |
| 9373 | png_destroy_write_struct(&ping,(png_info **) NULL); |
| 9374 | ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
| 9375 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9376 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9377 | png_set_write_fn(ping,image,png_put_data,png_flush_data); |
cristy | 0997332 | 2013-06-30 21:06:30 +0000 | [diff] [blame] | 9378 | pixel_info=(MemoryInfo *) NULL; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9379 | |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 9380 | if (setjmp(png_jmpbuf(ping))) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9381 | { |
| 9382 | /* |
| 9383 | PNG write failed. |
| 9384 | */ |
| 9385 | #ifdef PNG_DEBUG |
| 9386 | if (image_info->verbose) |
| 9387 | (void) printf("PNG write has failed.\n"); |
| 9388 | #endif |
| 9389 | png_destroy_write_struct(&ping,&ping_info); |
glennrp | 868fff3 | 2014-03-16 22:09:06 +0000 | [diff] [blame] | 9390 | #ifdef IMPNG_SETJMP_NOT_THREAD_SAFE |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 9391 | UnlockSemaphoreInfo(ping_semaphore); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9392 | #endif |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 9393 | |
cristy | 0997332 | 2013-06-30 21:06:30 +0000 | [diff] [blame] | 9394 | if (pixel_info != (MemoryInfo *) NULL) |
| 9395 | pixel_info=RelinquishVirtualMemory(pixel_info); |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 9396 | |
| 9397 | if (quantum_info != (QuantumInfo *) NULL) |
| 9398 | quantum_info=DestroyQuantumInfo(quantum_info); |
| 9399 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9400 | if (ping_have_blob != MagickFalse) |
| 9401 | (void) CloseBlob(image); |
| 9402 | image_info=DestroyImageInfo(image_info); |
| 9403 | image=DestroyImage(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9404 | return(MagickFalse); |
| 9405 | } |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 9406 | |
| 9407 | /* { For navigation to end of SETJMP-protected block. Within this |
| 9408 | * block, use png_error() instead of Throwing an Exception, to ensure |
| 9409 | * that libpng is able to clean up, and that the semaphore is unlocked. |
| 9410 | */ |
| 9411 | |
glennrp | 868fff3 | 2014-03-16 22:09:06 +0000 | [diff] [blame] | 9412 | #ifdef IMPNG_SETJMP_NOT_THREAD_SAFE |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 9413 | LockSemaphoreInfo(ping_semaphore); |
| 9414 | #endif |
| 9415 | |
glennrp | 943b7d3 | 2013-04-21 00:40:38 +0000 | [diff] [blame] | 9416 | #ifdef PNG_BENIGN_ERRORS_SUPPORTED |
glennrp | a3a5f95 | 2013-04-17 12:58:15 +0000 | [diff] [blame] | 9417 | /* Allow benign errors */ |
| 9418 | png_set_benign_errors(ping, 1); |
| 9419 | #endif |
| 9420 | |
dirk | f9eb204 | 2015-10-22 13:22:42 +0200 | [diff] [blame] | 9421 | #ifdef PNG_SET_USER_LIMITS_SUPPORTED |
| 9422 | /* Reject images with too many rows or columns */ |
| 9423 | png_set_user_limits(ping, |
| 9424 | (png_uint_32) MagickMin(0x7fffffffL, |
| 9425 | GetMagickResourceLimit(WidthResource)), |
| 9426 | (png_uint_32) MagickMin(0x7fffffffL, |
| 9427 | GetMagickResourceLimit(HeightResource))); |
| 9428 | #endif /* PNG_SET_USER_LIMITS_SUPPORTED */ |
| 9429 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9430 | /* |
| 9431 | Prepare PNG for writing. |
| 9432 | */ |
glennrp | 9bf97b6 | 2012-06-06 21:03:14 +0000 | [diff] [blame] | 9433 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9434 | #if defined(PNG_MNG_FEATURES_SUPPORTED) |
| 9435 | if (mng_info->write_mng) |
glennrp | 25024a6 | 2012-06-07 11:38:34 +0000 | [diff] [blame] | 9436 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9437 | (void) png_permit_mng_features(ping,PNG_ALL_MNG_FEATURES); |
glennrp | 25024a6 | 2012-06-07 11:38:34 +0000 | [diff] [blame] | 9438 | # ifdef PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED |
| 9439 | /* Disable new libpng-1.5.10 feature when writing a MNG because |
| 9440 | * zero-length PLTE is OK |
| 9441 | */ |
| 9442 | png_set_check_for_invalid_index (ping, 0); |
| 9443 | # endif |
| 9444 | } |
glennrp | 2b013e4 | 2010-11-24 16:55:50 +0000 | [diff] [blame] | 9445 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9446 | #else |
| 9447 | # ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED |
| 9448 | if (mng_info->write_mng) |
| 9449 | png_permit_empty_plte(ping,MagickTrue); |
glennrp | 2b013e4 | 2010-11-24 16:55:50 +0000 | [diff] [blame] | 9450 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9451 | # endif |
| 9452 | #endif |
glennrp | 2b013e4 | 2010-11-24 16:55:50 +0000 | [diff] [blame] | 9453 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9454 | x=0; |
glennrp | 2b013e4 | 2010-11-24 16:55:50 +0000 | [diff] [blame] | 9455 | |
cristy | 4e5bc84 | 2010-06-09 13:56:01 +0000 | [diff] [blame] | 9456 | ping_width=(png_uint_32) image->columns; |
| 9457 | ping_height=(png_uint_32) image->rows; |
glennrp | 2b013e4 | 2010-11-24 16:55:50 +0000 | [diff] [blame] | 9458 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9459 | if (mng_info->write_png8 || mng_info->write_png24 || mng_info->write_png32) |
| 9460 | image_depth=8; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9461 | |
glennrp | fd164d2 | 2013-01-26 21:10:22 +0000 | [diff] [blame] | 9462 | if (mng_info->write_png48 || mng_info->write_png64) |
| 9463 | image_depth=16; |
| 9464 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9465 | if (mng_info->write_png_depth != 0) |
| 9466 | image_depth=mng_info->write_png_depth; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9467 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9468 | /* Adjust requested depth to next higher valid depth if necessary */ |
| 9469 | if (image_depth > 8) |
| 9470 | image_depth=16; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9471 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9472 | if ((image_depth > 4) && (image_depth < 8)) |
| 9473 | image_depth=8; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9474 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9475 | if (image_depth == 3) |
| 9476 | image_depth=4; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9477 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9478 | if (logging != MagickFalse) |
| 9479 | { |
| 9480 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 9481 | " width=%.20g",(double) ping_width); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9482 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 9483 | " height=%.20g",(double) ping_height); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9484 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | 8a46d82 | 2012-08-28 23:32:39 +0000 | [diff] [blame] | 9485 | " image_matte=%.20g",(double) image->alpha_trait); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9486 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 8640fb5 | 2010-11-23 15:48:26 +0000 | [diff] [blame] | 9487 | " image->depth=%.20g",(double) image->depth); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9488 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 8640fb5 | 2010-11-23 15:48:26 +0000 | [diff] [blame] | 9489 | " Tentative ping_bit_depth=%.20g",(double) image_depth); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9490 | } |
glennrp | 8640fb5 | 2010-11-23 15:48:26 +0000 | [diff] [blame] | 9491 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9492 | save_image_depth=image_depth; |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 9493 | ping_bit_depth=(png_byte) save_image_depth; |
glennrp | dfd7080 | 2010-11-14 01:23:35 +0000 | [diff] [blame] | 9494 | |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 9495 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9496 | #if defined(PNG_pHYs_SUPPORTED) |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 9497 | if (ping_exclude_pHYs == MagickFalse) |
| 9498 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9499 | if ((image->resolution.x != 0) && (image->resolution.y != 0) && |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9500 | (!mng_info->write_mng || !mng_info->equal_physs)) |
| 9501 | { |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9502 | if (logging != MagickFalse) |
glennrp | dfd7080 | 2010-11-14 01:23:35 +0000 | [diff] [blame] | 9503 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 9504 | " Setting up pHYs chunk"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9505 | |
| 9506 | if (image->units == PixelsPerInchResolution) |
| 9507 | { |
glennrp | dfd7080 | 2010-11-14 01:23:35 +0000 | [diff] [blame] | 9508 | ping_pHYs_unit_type=PNG_RESOLUTION_METER; |
glennrp | 823b55c | 2011-03-14 18:46:46 +0000 | [diff] [blame] | 9509 | ping_pHYs_x_resolution= |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9510 | (png_uint_32) ((100.0*image->resolution.x+0.5)/2.54); |
glennrp | 823b55c | 2011-03-14 18:46:46 +0000 | [diff] [blame] | 9511 | ping_pHYs_y_resolution= |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9512 | (png_uint_32) ((100.0*image->resolution.y+0.5)/2.54); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9513 | } |
glennrp | dfd7080 | 2010-11-14 01:23:35 +0000 | [diff] [blame] | 9514 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9515 | else if (image->units == PixelsPerCentimeterResolution) |
| 9516 | { |
glennrp | dfd7080 | 2010-11-14 01:23:35 +0000 | [diff] [blame] | 9517 | ping_pHYs_unit_type=PNG_RESOLUTION_METER; |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9518 | ping_pHYs_x_resolution=(png_uint_32) (100.0*image->resolution.x+0.5); |
| 9519 | ping_pHYs_y_resolution=(png_uint_32) (100.0*image->resolution.y+0.5); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9520 | } |
glennrp | 991d11d | 2010-11-12 21:55:28 +0000 | [diff] [blame] | 9521 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9522 | else |
| 9523 | { |
glennrp | dfd7080 | 2010-11-14 01:23:35 +0000 | [diff] [blame] | 9524 | ping_pHYs_unit_type=PNG_RESOLUTION_UNKNOWN; |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 9525 | ping_pHYs_x_resolution=(png_uint_32) image->resolution.x; |
| 9526 | ping_pHYs_y_resolution=(png_uint_32) image->resolution.y; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9527 | } |
glennrp | 991d11d | 2010-11-12 21:55:28 +0000 | [diff] [blame] | 9528 | |
glennrp | 823b55c | 2011-03-14 18:46:46 +0000 | [diff] [blame] | 9529 | if (logging != MagickFalse) |
| 9530 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 9531 | " Set up PNG pHYs chunk: xres: %.20g, yres: %.20g, units: %d.", |
| 9532 | (double) ping_pHYs_x_resolution,(double) ping_pHYs_y_resolution, |
| 9533 | (int) ping_pHYs_unit_type); |
glennrp | 991d11d | 2010-11-12 21:55:28 +0000 | [diff] [blame] | 9534 | ping_have_pHYs = MagickTrue; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9535 | } |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 9536 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9537 | #endif |
glennrp | a521b2f | 2010-10-29 04:11:03 +0000 | [diff] [blame] | 9538 | |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 9539 | if (ping_exclude_bKGD == MagickFalse) |
| 9540 | { |
glennrp | a521b2f | 2010-10-29 04:11:03 +0000 | [diff] [blame] | 9541 | if ((!mng_info->adjoin || !mng_info->equal_backgrounds)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9542 | { |
glennrp | a521b2f | 2010-10-29 04:11:03 +0000 | [diff] [blame] | 9543 | unsigned int |
| 9544 | mask; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9545 | |
glennrp | a521b2f | 2010-10-29 04:11:03 +0000 | [diff] [blame] | 9546 | mask=0xffff; |
| 9547 | if (ping_bit_depth == 8) |
| 9548 | mask=0x00ff; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9549 | |
glennrp | a521b2f | 2010-10-29 04:11:03 +0000 | [diff] [blame] | 9550 | if (ping_bit_depth == 4) |
| 9551 | mask=0x000f; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9552 | |
glennrp | a521b2f | 2010-10-29 04:11:03 +0000 | [diff] [blame] | 9553 | if (ping_bit_depth == 2) |
| 9554 | mask=0x0003; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9555 | |
glennrp | a521b2f | 2010-10-29 04:11:03 +0000 | [diff] [blame] | 9556 | if (ping_bit_depth == 1) |
| 9557 | mask=0x0001; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9558 | |
glennrp | a521b2f | 2010-10-29 04:11:03 +0000 | [diff] [blame] | 9559 | ping_background.red=(png_uint_16) |
| 9560 | (ScaleQuantumToShort(image->background_color.red) & mask); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9561 | |
glennrp | a521b2f | 2010-10-29 04:11:03 +0000 | [diff] [blame] | 9562 | ping_background.green=(png_uint_16) |
| 9563 | (ScaleQuantumToShort(image->background_color.green) & mask); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9564 | |
glennrp | a521b2f | 2010-10-29 04:11:03 +0000 | [diff] [blame] | 9565 | ping_background.blue=(png_uint_16) |
| 9566 | (ScaleQuantumToShort(image->background_color.blue) & mask); |
glennrp | c6c391a | 2011-04-27 02:23:56 +0000 | [diff] [blame] | 9567 | |
| 9568 | ping_background.gray=(png_uint_16) ping_background.green; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9569 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9570 | |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9571 | if (logging != MagickFalse) |
glennrp | 3b51f0e | 2010-11-27 18:14:08 +0000 | [diff] [blame] | 9572 | { |
| 9573 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 9574 | " Setting up bKGD chunk (1)"); |
glennrp | c6c391a | 2011-04-27 02:23:56 +0000 | [diff] [blame] | 9575 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 9576 | " background_color index is %d", |
| 9577 | (int) ping_background.index); |
glennrp | 3b51f0e | 2010-11-27 18:14:08 +0000 | [diff] [blame] | 9578 | |
| 9579 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 9580 | " ping_bit_depth=%d",ping_bit_depth); |
| 9581 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9582 | |
| 9583 | ping_have_bKGD = MagickTrue; |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 9584 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9585 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9586 | /* |
| 9587 | Select the color type. |
| 9588 | */ |
| 9589 | matte=image_matte; |
| 9590 | old_bit_depth=0; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9591 | |
glennrp | 1273f7b | 2011-02-24 03:20:30 +0000 | [diff] [blame] | 9592 | if (mng_info->IsPalette && mng_info->write_png8) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9593 | { |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 9594 | /* To do: make this a function cause it's used twice, except |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9595 | for reducing the sample depth from 8. */ |
| 9596 | |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9597 | number_colors=image_colors; |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 9598 | |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 9599 | ping_have_tRNS=MagickFalse; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9600 | |
| 9601 | /* |
| 9602 | Set image palette. |
| 9603 | */ |
| 9604 | ping_color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; |
| 9605 | |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9606 | if (logging != MagickFalse) |
| 9607 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 9608 | " Setting up PLTE chunk with %d colors (%d)", |
glennrp | f09bded | 2011-01-08 01:15:59 +0000 | [diff] [blame] | 9609 | number_colors, image_colors); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9610 | |
| 9611 | for (i=0; i < (ssize_t) number_colors; i++) |
| 9612 | { |
| 9613 | palette[i].red=ScaleQuantumToChar(image->colormap[i].red); |
| 9614 | palette[i].green=ScaleQuantumToChar(image->colormap[i].green); |
| 9615 | palette[i].blue=ScaleQuantumToChar(image->colormap[i].blue); |
| 9616 | if (logging != MagickFalse) |
| 9617 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 67b9c1a | 2011-04-22 18:47:36 +0000 | [diff] [blame] | 9618 | #if MAGICKCORE_QUANTUM_DEPTH == 8 |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9619 | " %3ld (%3d,%3d,%3d)", |
glennrp | 67b9c1a | 2011-04-22 18:47:36 +0000 | [diff] [blame] | 9620 | #else |
| 9621 | " %5ld (%5d,%5d,%5d)", |
| 9622 | #endif |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9623 | (long) i,palette[i].red,palette[i].green,palette[i].blue); |
| 9624 | |
| 9625 | } |
glennrp | 2b013e4 | 2010-11-24 16:55:50 +0000 | [diff] [blame] | 9626 | |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 9627 | ping_have_PLTE=MagickTrue; |
| 9628 | image_depth=ping_bit_depth; |
| 9629 | ping_num_trans=0; |
glennrp | 2b013e4 | 2010-11-24 16:55:50 +0000 | [diff] [blame] | 9630 | |
glennrp | 58e0176 | 2011-01-07 15:28:54 +0000 | [diff] [blame] | 9631 | if (matte != MagickFalse) |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 9632 | { |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9633 | /* |
| 9634 | Identify which colormap entry is transparent. |
| 9635 | */ |
| 9636 | assert(number_colors <= 256); |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 9637 | assert(image->colormap != NULL); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9638 | |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 9639 | for (i=0; i < (ssize_t) number_transparent; i++) |
| 9640 | ping_trans_alpha[i]=0; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9641 | |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9642 | |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 9643 | ping_num_trans=(unsigned short) (number_transparent + |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 9644 | number_semitransparent); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9645 | |
| 9646 | if (ping_num_trans == 0) |
| 9647 | ping_have_tRNS=MagickFalse; |
| 9648 | |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 9649 | else |
| 9650 | ping_have_tRNS=MagickTrue; |
| 9651 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9652 | |
glennrp | 1273f7b | 2011-02-24 03:20:30 +0000 | [diff] [blame] | 9653 | if (ping_exclude_bKGD == MagickFalse) |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 9654 | { |
glennrp | 1273f7b | 2011-02-24 03:20:30 +0000 | [diff] [blame] | 9655 | /* |
| 9656 | * Identify which colormap entry is the background color. |
| 9657 | */ |
| 9658 | |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 9659 | for (i=0; i < (ssize_t) MagickMax(1L*number_colors-1L,1L); i++) |
| 9660 | if (IsPNGColorEqual(ping_background,image->colormap[i])) |
| 9661 | break; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9662 | |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 9663 | ping_background.index=(png_byte) i; |
glennrp | c6c391a | 2011-04-27 02:23:56 +0000 | [diff] [blame] | 9664 | |
| 9665 | if (logging != MagickFalse) |
| 9666 | { |
| 9667 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 9668 | " background_color index is %d", |
| 9669 | (int) ping_background.index); |
| 9670 | } |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 9671 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9672 | } /* end of write_png8 */ |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9673 | |
glennrp | fd164d2 | 2013-01-26 21:10:22 +0000 | [diff] [blame] | 9674 | else if (mng_info->write_png_colortype == 1) |
| 9675 | { |
| 9676 | image_matte=MagickFalse; |
| 9677 | ping_color_type=(png_byte) PNG_COLOR_TYPE_GRAY; |
| 9678 | } |
| 9679 | |
| 9680 | else if (mng_info->write_png24 || mng_info->write_png48 || |
| 9681 | mng_info->write_png_colortype == 3) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9682 | { |
| 9683 | image_matte=MagickFalse; |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 9684 | ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9685 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9686 | |
glennrp | fd164d2 | 2013-01-26 21:10:22 +0000 | [diff] [blame] | 9687 | else if (mng_info->write_png32 || mng_info->write_png64 || |
| 9688 | mng_info->write_png_colortype == 7) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9689 | { |
| 9690 | image_matte=MagickTrue; |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 9691 | ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB_ALPHA; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9692 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9693 | |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 9694 | else /* mng_info->write_pngNN not specified */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9695 | { |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 9696 | image_depth=ping_bit_depth; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9697 | |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 9698 | if (mng_info->write_png_colortype != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9699 | { |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 9700 | ping_color_type=(png_byte) mng_info->write_png_colortype-1; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9701 | |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 9702 | if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA || |
| 9703 | ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9704 | image_matte=MagickTrue; |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 9705 | |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 9706 | else |
| 9707 | image_matte=MagickFalse; |
glennrp | 7c4c9e6 | 2011-03-21 20:23:32 +0000 | [diff] [blame] | 9708 | |
| 9709 | if (logging != MagickFalse) |
| 9710 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 9711 | " PNG colortype %d was specified:",(int) ping_color_type); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9712 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9713 | |
glennrp | 7c4c9e6 | 2011-03-21 20:23:32 +0000 | [diff] [blame] | 9714 | else /* write_png_colortype not specified */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9715 | { |
| 9716 | if (logging != MagickFalse) |
| 9717 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 3c21811 | 2010-11-27 15:31:26 +0000 | [diff] [blame] | 9718 | " Selecting PNG colortype:"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9719 | |
glennrp | d6bf161 | 2010-12-17 17:28:54 +0000 | [diff] [blame] | 9720 | ping_color_type=(png_byte) ((matte != MagickFalse)? |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 9721 | PNG_COLOR_TYPE_RGB_ALPHA:PNG_COLOR_TYPE_RGB); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9722 | |
glennrp | d6bf161 | 2010-12-17 17:28:54 +0000 | [diff] [blame] | 9723 | if (image_info->type == TrueColorType) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9724 | { |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 9725 | ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9726 | image_matte=MagickFalse; |
| 9727 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9728 | |
cristy | def23e5 | 2015-01-22 11:52:01 +0000 | [diff] [blame] | 9729 | if (image_info->type == TrueColorAlphaType) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9730 | { |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 9731 | ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB_ALPHA; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9732 | image_matte=MagickTrue; |
| 9733 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9734 | |
glennrp | 5aa37f6 | 2011-01-02 03:07:57 +0000 | [diff] [blame] | 9735 | if (image_info->type == PaletteType || |
cristy | def23e5 | 2015-01-22 11:52:01 +0000 | [diff] [blame] | 9736 | image_info->type == PaletteAlphaType) |
glennrp | 5aa37f6 | 2011-01-02 03:07:57 +0000 | [diff] [blame] | 9737 | ping_color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; |
| 9738 | |
glennrp | 7c4c9e6 | 2011-03-21 20:23:32 +0000 | [diff] [blame] | 9739 | if (mng_info->write_png_colortype == 0 && |
glennrp | 261f64e | 2014-08-09 15:44:51 +0000 | [diff] [blame] | 9740 | image_info->type == UndefinedType) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9741 | { |
glennrp | 5aa37f6 | 2011-01-02 03:07:57 +0000 | [diff] [blame] | 9742 | if (ping_have_color == MagickFalse) |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 9743 | { |
glennrp | 5aa37f6 | 2011-01-02 03:07:57 +0000 | [diff] [blame] | 9744 | if (image_matte == MagickFalse) |
| 9745 | { |
| 9746 | ping_color_type=(png_byte) PNG_COLOR_TYPE_GRAY; |
| 9747 | image_matte=MagickFalse; |
| 9748 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9749 | |
glennrp | 0b206f5 | 2011-01-07 04:55:32 +0000 | [diff] [blame] | 9750 | else |
glennrp | 5aa37f6 | 2011-01-02 03:07:57 +0000 | [diff] [blame] | 9751 | { |
| 9752 | ping_color_type=(png_byte) PNG_COLOR_TYPE_GRAY_ALPHA; |
| 9753 | image_matte=MagickTrue; |
| 9754 | } |
| 9755 | } |
| 9756 | else |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 9757 | { |
glennrp | 5aa37f6 | 2011-01-02 03:07:57 +0000 | [diff] [blame] | 9758 | if (image_matte == MagickFalse) |
| 9759 | { |
| 9760 | ping_color_type=(png_byte) PNG_COLOR_TYPE_RGB; |
| 9761 | image_matte=MagickFalse; |
| 9762 | } |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 9763 | |
glennrp | 0b206f5 | 2011-01-07 04:55:32 +0000 | [diff] [blame] | 9764 | else |
glennrp | 5aa37f6 | 2011-01-02 03:07:57 +0000 | [diff] [blame] | 9765 | { |
| 9766 | ping_color_type=(png_byte) PNG_COLOR_TYPE_RGBA; |
| 9767 | image_matte=MagickTrue; |
| 9768 | } |
| 9769 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9770 | } |
glennrp | 5aa37f6 | 2011-01-02 03:07:57 +0000 | [diff] [blame] | 9771 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9772 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9773 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9774 | if (logging != MagickFalse) |
| 9775 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 8640fb5 | 2010-11-23 15:48:26 +0000 | [diff] [blame] | 9776 | " Selected PNG colortype=%d",ping_color_type); |
glennrp | 26c990a | 2010-11-23 02:23:20 +0000 | [diff] [blame] | 9777 | |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 9778 | if (ping_bit_depth < 8) |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9779 | { |
| 9780 | if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA || |
| 9781 | ping_color_type == PNG_COLOR_TYPE_RGB || |
| 9782 | ping_color_type == PNG_COLOR_TYPE_RGB_ALPHA) |
| 9783 | ping_bit_depth=8; |
| 9784 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9785 | |
glennrp | d6bf161 | 2010-12-17 17:28:54 +0000 | [diff] [blame] | 9786 | old_bit_depth=ping_bit_depth; |
| 9787 | |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 9788 | if (ping_color_type == PNG_COLOR_TYPE_GRAY) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9789 | { |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 9790 | if (image->alpha_trait == UndefinedPixelTrait && ping_have_non_bw == MagickFalse) |
glennrp | 8d57966 | 2011-02-23 02:05:02 +0000 | [diff] [blame] | 9791 | ping_bit_depth=1; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9792 | } |
glennrp | 8640fb5 | 2010-11-23 15:48:26 +0000 | [diff] [blame] | 9793 | |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 9794 | if (ping_color_type == PNG_COLOR_TYPE_PALETTE) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9795 | { |
cristy | 35ef824 | 2010-06-03 16:24:13 +0000 | [diff] [blame] | 9796 | size_t one = 1; |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 9797 | ping_bit_depth=1; |
glennrp | 0f11198 | 2010-07-07 20:18:33 +0000 | [diff] [blame] | 9798 | |
| 9799 | if (image->colors == 0) |
| 9800 | { |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9801 | /* DO SOMETHING */ |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 9802 | png_error(ping,"image has 0 colors"); |
glennrp | 0f11198 | 2010-07-07 20:18:33 +0000 | [diff] [blame] | 9803 | } |
| 9804 | |
cristy | 35ef824 | 2010-06-03 16:24:13 +0000 | [diff] [blame] | 9805 | while ((int) (one << ping_bit_depth) < (ssize_t) image_colors) |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 9806 | ping_bit_depth <<= 1; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9807 | } |
glennrp | 2b013e4 | 2010-11-24 16:55:50 +0000 | [diff] [blame] | 9808 | |
glennrp | d6bf161 | 2010-12-17 17:28:54 +0000 | [diff] [blame] | 9809 | if (logging != MagickFalse) |
| 9810 | { |
| 9811 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 9812 | " Number of colors: %.20g",(double) image_colors); |
| 9813 | |
| 9814 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 9815 | " Tentative PNG bit depth: %d",ping_bit_depth); |
| 9816 | } |
| 9817 | |
| 9818 | if (ping_bit_depth < (int) mng_info->write_png_depth) |
| 9819 | ping_bit_depth = mng_info->write_png_depth; |
| 9820 | } |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 9821 | |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 9822 | image_depth=ping_bit_depth; |
glennrp | 2b013e4 | 2010-11-24 16:55:50 +0000 | [diff] [blame] | 9823 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9824 | if (logging != MagickFalse) |
| 9825 | { |
| 9826 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 1a56e9c | 2012-04-25 17:06:57 +0000 | [diff] [blame] | 9827 | " Tentative PNG color type: %s (%.20g)", |
| 9828 | PngColorTypeToString(ping_color_type), |
| 9829 | (double) ping_color_type); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9830 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9831 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 9832 | " image_info->type: %.20g",(double) image_info->type); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9833 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9834 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 9835 | " image_depth: %.20g",(double) image_depth); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9836 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9837 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 3c21811 | 2010-11-27 15:31:26 +0000 | [diff] [blame] | 9838 | |
glennrp | 8640fb5 | 2010-11-23 15:48:26 +0000 | [diff] [blame] | 9839 | " image->depth: %.20g",(double) image->depth); |
| 9840 | |
| 9841 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 9842 | " ping_bit_depth: %.20g",(double) ping_bit_depth); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9843 | } |
| 9844 | |
glennrp | 58e0176 | 2011-01-07 15:28:54 +0000 | [diff] [blame] | 9845 | if (matte != MagickFalse) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9846 | { |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 9847 | if (mng_info->IsPalette) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9848 | { |
glennrp | 7c4c9e6 | 2011-03-21 20:23:32 +0000 | [diff] [blame] | 9849 | if (mng_info->write_png_colortype == 0) |
| 9850 | { |
| 9851 | ping_color_type=PNG_COLOR_TYPE_GRAY_ALPHA; |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 9852 | |
glennrp | 7c4c9e6 | 2011-03-21 20:23:32 +0000 | [diff] [blame] | 9853 | if (ping_have_color != MagickFalse) |
| 9854 | ping_color_type=PNG_COLOR_TYPE_RGBA; |
| 9855 | } |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 9856 | |
| 9857 | /* |
| 9858 | * Determine if there is any transparent color. |
| 9859 | */ |
| 9860 | if (number_transparent + number_semitransparent == 0) |
| 9861 | { |
| 9862 | /* |
| 9863 | No transparent pixels are present. Change 4 or 6 to 0 or 2. |
| 9864 | */ |
glennrp | a6a0663 | 2011-01-19 15:15:34 +0000 | [diff] [blame] | 9865 | |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 9866 | image_matte=MagickFalse; |
glennrp | 7c4c9e6 | 2011-03-21 20:23:32 +0000 | [diff] [blame] | 9867 | |
| 9868 | if (mng_info->write_png_colortype == 0) |
| 9869 | ping_color_type&=0x03; |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 9870 | } |
| 9871 | |
| 9872 | else |
| 9873 | { |
| 9874 | unsigned int |
glennrp | bb4f99d | 2011-05-22 11:13:17 +0000 | [diff] [blame] | 9875 | mask; |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 9876 | |
| 9877 | mask=0xffff; |
| 9878 | |
| 9879 | if (ping_bit_depth == 8) |
| 9880 | mask=0x00ff; |
| 9881 | |
| 9882 | if (ping_bit_depth == 4) |
| 9883 | mask=0x000f; |
| 9884 | |
| 9885 | if (ping_bit_depth == 2) |
| 9886 | mask=0x0003; |
| 9887 | |
| 9888 | if (ping_bit_depth == 1) |
| 9889 | mask=0x0001; |
| 9890 | |
| 9891 | ping_trans_color.red=(png_uint_16) |
| 9892 | (ScaleQuantumToShort(image->colormap[0].red) & mask); |
| 9893 | |
| 9894 | ping_trans_color.green=(png_uint_16) |
| 9895 | (ScaleQuantumToShort(image->colormap[0].green) & mask); |
| 9896 | |
| 9897 | ping_trans_color.blue=(png_uint_16) |
| 9898 | (ScaleQuantumToShort(image->colormap[0].blue) & mask); |
| 9899 | |
| 9900 | ping_trans_color.gray=(png_uint_16) |
cristy | 11a06d3 | 2015-01-04 12:03:27 +0000 | [diff] [blame] | 9901 | (ScaleQuantumToShort(GetPixelInfoIntensity(image, |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 9902 | image->colormap)) & mask); |
| 9903 | |
| 9904 | ping_trans_color.index=(png_byte) 0; |
| 9905 | |
| 9906 | ping_have_tRNS=MagickTrue; |
| 9907 | } |
| 9908 | |
| 9909 | if (ping_have_tRNS != MagickFalse) |
| 9910 | { |
| 9911 | /* |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 9912 | * Determine if there is one and only one transparent color |
| 9913 | * and if so if it is fully transparent. |
| 9914 | */ |
| 9915 | if (ping_have_cheap_transparency == MagickFalse) |
| 9916 | ping_have_tRNS=MagickFalse; |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 9917 | } |
| 9918 | |
| 9919 | if (ping_have_tRNS != MagickFalse) |
| 9920 | { |
glennrp | 7c4c9e6 | 2011-03-21 20:23:32 +0000 | [diff] [blame] | 9921 | if (mng_info->write_png_colortype == 0) |
| 9922 | ping_color_type &= 0x03; /* changes 4 or 6 to 0 or 2 */ |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 9923 | |
| 9924 | if (image_depth == 8) |
| 9925 | { |
| 9926 | ping_trans_color.red&=0xff; |
| 9927 | ping_trans_color.green&=0xff; |
| 9928 | ping_trans_color.blue&=0xff; |
| 9929 | ping_trans_color.gray&=0xff; |
| 9930 | } |
| 9931 | } |
| 9932 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9933 | else |
| 9934 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9935 | if (image_depth == 8) |
| 9936 | { |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 9937 | ping_trans_color.red&=0xff; |
| 9938 | ping_trans_color.green&=0xff; |
| 9939 | ping_trans_color.blue&=0xff; |
| 9940 | ping_trans_color.gray&=0xff; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9941 | } |
| 9942 | } |
| 9943 | } |
glennrp | 8640fb5 | 2010-11-23 15:48:26 +0000 | [diff] [blame] | 9944 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9945 | matte=image_matte; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9946 | |
glennrp | 2e09f55 | 2010-11-14 00:38:48 +0000 | [diff] [blame] | 9947 | if (ping_have_tRNS != MagickFalse) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9948 | image_matte=MagickFalse; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9949 | |
glennrp | 39992b4 | 2010-11-14 00:03:43 +0000 | [diff] [blame] | 9950 | if ((mng_info->IsPalette) && |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9951 | mng_info->write_png_colortype-1 != PNG_COLOR_TYPE_PALETTE && |
glennrp | 8d57966 | 2011-02-23 02:05:02 +0000 | [diff] [blame] | 9952 | ping_have_color == MagickFalse && |
| 9953 | (image_matte == MagickFalse || image_depth >= 8)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9954 | { |
cristy | 35ef824 | 2010-06-03 16:24:13 +0000 | [diff] [blame] | 9955 | size_t one=1; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9956 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9957 | if (image_matte != MagickFalse) |
glennrp | 9c1eb07 | 2010-06-06 22:19:15 +0000 | [diff] [blame] | 9958 | ping_color_type=PNG_COLOR_TYPE_GRAY_ALPHA; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9959 | |
glennrp | 7c4c9e6 | 2011-03-21 20:23:32 +0000 | [diff] [blame] | 9960 | else if (mng_info->write_png_colortype-1 != PNG_COLOR_TYPE_GRAY_ALPHA) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9961 | { |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 9962 | ping_color_type=PNG_COLOR_TYPE_GRAY; |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 9963 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9964 | if (save_image_depth == 16 && image_depth == 8) |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 9965 | { |
| 9966 | if (logging != MagickFalse) |
| 9967 | { |
| 9968 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 9969 | " Scaling ping_trans_color (0)"); |
| 9970 | } |
| 9971 | ping_trans_color.gray*=0x0101; |
| 9972 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9973 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9974 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9975 | if (image_depth > MAGICKCORE_QUANTUM_DEPTH) |
| 9976 | image_depth=MAGICKCORE_QUANTUM_DEPTH; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9977 | |
glennrp | 136ee3a | 2011-04-27 15:47:45 +0000 | [diff] [blame] | 9978 | if ((image_colors == 0) || |
glennrp | d17915c | 2011-04-29 14:24:22 +0000 | [diff] [blame] | 9979 | ((ssize_t) (image_colors-1) > (ssize_t) MaxColormapSize)) |
glennrp | f09bded | 2011-01-08 01:15:59 +0000 | [diff] [blame] | 9980 | image_colors=(int) (one << image_depth); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9981 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9982 | if (image_depth > 8) |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 9983 | ping_bit_depth=16; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9984 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9985 | else |
| 9986 | { |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 9987 | ping_bit_depth=8; |
| 9988 | if ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9989 | { |
| 9990 | if(!mng_info->write_png_depth) |
| 9991 | { |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 9992 | ping_bit_depth=1; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 9993 | |
cristy | 35ef824 | 2010-06-03 16:24:13 +0000 | [diff] [blame] | 9994 | while ((int) (one << ping_bit_depth) |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 9995 | < (ssize_t) image_colors) |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 9996 | ping_bit_depth <<= 1; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 9997 | } |
| 9998 | } |
glennrp | 2b013e4 | 2010-11-24 16:55:50 +0000 | [diff] [blame] | 9999 | |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10000 | else if (ping_color_type == |
| 10001 | PNG_COLOR_TYPE_GRAY && image_colors < 17 && |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10002 | mng_info->IsPalette) |
| 10003 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10004 | /* Check if grayscale is reducible */ |
glennrp | 1a0aaa6 | 2011-03-07 17:40:17 +0000 | [diff] [blame] | 10005 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10006 | int |
| 10007 | depth_4_ok=MagickTrue, |
| 10008 | depth_2_ok=MagickTrue, |
| 10009 | depth_1_ok=MagickTrue; |
| 10010 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 10011 | for (i=0; i < (ssize_t) image_colors; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10012 | { |
| 10013 | unsigned char |
| 10014 | intensity; |
| 10015 | |
| 10016 | intensity=ScaleQuantumToChar(image->colormap[i].red); |
| 10017 | |
| 10018 | if ((intensity & 0x0f) != ((intensity & 0xf0) >> 4)) |
| 10019 | depth_4_ok=depth_2_ok=depth_1_ok=MagickFalse; |
| 10020 | else if ((intensity & 0x03) != ((intensity & 0x0c) >> 2)) |
| 10021 | depth_2_ok=depth_1_ok=MagickFalse; |
glennrp | 4bf8973 | 2011-03-21 13:48:28 +0000 | [diff] [blame] | 10022 | else if ((intensity & 0x01) != ((intensity & 0x02) >> 1)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10023 | depth_1_ok=MagickFalse; |
| 10024 | } |
glennrp | 2b013e4 | 2010-11-24 16:55:50 +0000 | [diff] [blame] | 10025 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10026 | if (depth_1_ok && mng_info->write_png_depth <= 1) |
glennrp | 9c1eb07 | 2010-06-06 22:19:15 +0000 | [diff] [blame] | 10027 | ping_bit_depth=1; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10028 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10029 | else if (depth_2_ok && mng_info->write_png_depth <= 2) |
glennrp | 9c1eb07 | 2010-06-06 22:19:15 +0000 | [diff] [blame] | 10030 | ping_bit_depth=2; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10031 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10032 | else if (depth_4_ok && mng_info->write_png_depth <= 4) |
glennrp | 9c1eb07 | 2010-06-06 22:19:15 +0000 | [diff] [blame] | 10033 | ping_bit_depth=4; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10034 | } |
| 10035 | } |
glennrp | 2b013e4 | 2010-11-24 16:55:50 +0000 | [diff] [blame] | 10036 | |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 10037 | image_depth=ping_bit_depth; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10038 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10039 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10040 | else |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10041 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10042 | if (mng_info->IsPalette) |
| 10043 | { |
glennrp | 17a1485 | 2010-05-10 03:01:59 +0000 | [diff] [blame] | 10044 | number_colors=image_colors; |
| 10045 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10046 | if (image_depth <= 8) |
| 10047 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10048 | /* |
| 10049 | Set image palette. |
| 10050 | */ |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 10051 | ping_color_type=(png_byte) PNG_COLOR_TYPE_PALETTE; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10052 | |
glennrp | 3d62786 | 2013-02-26 00:19:34 +0000 | [diff] [blame] | 10053 | if (!(mng_info->have_write_global_plte && matte == MagickFalse)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10054 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 10055 | for (i=0; i < (ssize_t) number_colors; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10056 | { |
| 10057 | palette[i].red=ScaleQuantumToChar(image->colormap[i].red); |
| 10058 | palette[i].green=ScaleQuantumToChar(image->colormap[i].green); |
| 10059 | palette[i].blue=ScaleQuantumToChar(image->colormap[i].blue); |
| 10060 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10061 | |
glennrp | 3b51f0e | 2010-11-27 18:14:08 +0000 | [diff] [blame] | 10062 | if (logging != MagickFalse) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10063 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 98156a3 | 2009-12-09 15:32:44 +0000 | [diff] [blame] | 10064 | " Setting up PLTE chunk with %d colors", |
glennrp | f09bded | 2011-01-08 01:15:59 +0000 | [diff] [blame] | 10065 | number_colors); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10066 | |
glennrp | 39992b4 | 2010-11-14 00:03:43 +0000 | [diff] [blame] | 10067 | ping_have_PLTE=MagickTrue; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10068 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10069 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10070 | /* color_type is PNG_COLOR_TYPE_PALETTE */ |
glennrp | d6bf161 | 2010-12-17 17:28:54 +0000 | [diff] [blame] | 10071 | if (mng_info->write_png_depth == 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10072 | { |
cristy | befe4d2 | 2010-06-07 01:18:58 +0000 | [diff] [blame] | 10073 | size_t |
| 10074 | one; |
| 10075 | |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 10076 | ping_bit_depth=1; |
cristy | befe4d2 | 2010-06-07 01:18:58 +0000 | [diff] [blame] | 10077 | one=1; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10078 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 10079 | while ((one << ping_bit_depth) < (size_t) number_colors) |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 10080 | ping_bit_depth <<= 1; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10081 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10082 | |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 10083 | ping_num_trans=0; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10084 | |
glennrp | 58e0176 | 2011-01-07 15:28:54 +0000 | [diff] [blame] | 10085 | if (matte != MagickFalse) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10086 | { |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10087 | /* |
glennrp | d6bf161 | 2010-12-17 17:28:54 +0000 | [diff] [blame] | 10088 | * Set up trans_colors array. |
| 10089 | */ |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10090 | assert(number_colors <= 256); |
| 10091 | |
glennrp | d6bf161 | 2010-12-17 17:28:54 +0000 | [diff] [blame] | 10092 | ping_num_trans=(unsigned short) (number_transparent + |
| 10093 | number_semitransparent); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10094 | |
| 10095 | if (ping_num_trans == 0) |
| 10096 | ping_have_tRNS=MagickFalse; |
| 10097 | |
glennrp | d6bf161 | 2010-12-17 17:28:54 +0000 | [diff] [blame] | 10098 | else |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10099 | { |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 10100 | if (logging != MagickFalse) |
| 10101 | { |
| 10102 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10103 | " Scaling ping_trans_color (1)"); |
| 10104 | } |
glennrp | d6bf161 | 2010-12-17 17:28:54 +0000 | [diff] [blame] | 10105 | ping_have_tRNS=MagickTrue; |
| 10106 | |
| 10107 | for (i=0; i < ping_num_trans; i++) |
| 10108 | { |
glennrp | 750105b | 2012-04-25 16:20:45 +0000 | [diff] [blame] | 10109 | ping_trans_alpha[i]= (png_byte) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 10110 | ScaleQuantumToChar(image->colormap[i].alpha); |
glennrp | d6bf161 | 2010-12-17 17:28:54 +0000 | [diff] [blame] | 10111 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10112 | } |
| 10113 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10114 | } |
| 10115 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10116 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10117 | else |
| 10118 | { |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 10119 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10120 | if (image_depth < 8) |
| 10121 | image_depth=8; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10122 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10123 | if ((save_image_depth == 16) && (image_depth == 8)) |
| 10124 | { |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 10125 | if (logging != MagickFalse) |
| 10126 | { |
| 10127 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10128 | " Scaling ping_trans_color from (%d,%d,%d)", |
| 10129 | (int) ping_trans_color.red, |
| 10130 | (int) ping_trans_color.green, |
| 10131 | (int) ping_trans_color.blue); |
| 10132 | } |
| 10133 | |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 10134 | ping_trans_color.red*=0x0101; |
| 10135 | ping_trans_color.green*=0x0101; |
| 10136 | ping_trans_color.blue*=0x0101; |
| 10137 | ping_trans_color.gray*=0x0101; |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 10138 | |
| 10139 | if (logging != MagickFalse) |
| 10140 | { |
| 10141 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10142 | " to (%d,%d,%d)", |
| 10143 | (int) ping_trans_color.red, |
| 10144 | (int) ping_trans_color.green, |
| 10145 | (int) ping_trans_color.blue); |
| 10146 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10147 | } |
| 10148 | } |
| 10149 | |
cristy | 4383ec8 | 2011-01-05 15:42:32 +0000 | [diff] [blame] | 10150 | if (ping_bit_depth < (ssize_t) mng_info->write_png_depth) |
| 10151 | ping_bit_depth = (ssize_t) mng_info->write_png_depth; |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 10152 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10153 | /* |
| 10154 | Adjust background and transparency samples in sub-8-bit grayscale files. |
| 10155 | */ |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 10156 | if (ping_bit_depth < 8 && ping_color_type == |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10157 | PNG_COLOR_TYPE_GRAY) |
| 10158 | { |
| 10159 | png_uint_16 |
| 10160 | maxval; |
| 10161 | |
cristy | 35ef824 | 2010-06-03 16:24:13 +0000 | [diff] [blame] | 10162 | size_t |
| 10163 | one=1; |
| 10164 | |
cristy | 22ffd97 | 2010-06-03 16:51:47 +0000 | [diff] [blame] | 10165 | maxval=(png_uint_16) ((one << ping_bit_depth)-1); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10166 | |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 10167 | if (ping_exclude_bKGD == MagickFalse) |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10168 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10169 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 10170 | ping_background.gray=(png_uint_16) ((maxval/65535.)* |
cristy | 11a06d3 | 2015-01-04 12:03:27 +0000 | [diff] [blame] | 10171 | (ScaleQuantumToShort(((GetPixelInfoIntensity(image, |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 10172 | &image->background_color))) +.5))); |
| 10173 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10174 | if (logging != MagickFalse) |
| 10175 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 10176 | " Setting up bKGD chunk (2)"); |
| 10177 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10178 | " background_color index is %d", |
| 10179 | (int) ping_background.index); |
glennrp | 3b51f0e | 2010-11-27 18:14:08 +0000 | [diff] [blame] | 10180 | |
glennrp | 991d11d | 2010-11-12 21:55:28 +0000 | [diff] [blame] | 10181 | ping_have_bKGD = MagickTrue; |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10182 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10183 | |
glennrp | 3e3e20f | 2011-06-09 04:21:43 +0000 | [diff] [blame] | 10184 | if (logging != MagickFalse) |
| 10185 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10186 | " Scaling ping_trans_color.gray from %d", |
| 10187 | (int)ping_trans_color.gray); |
| 10188 | |
glennrp | 9be9b1c | 2011-06-09 12:21:45 +0000 | [diff] [blame] | 10189 | ping_trans_color.gray=(png_uint_16) ((maxval/255.)*( |
glennrp | 3e3e20f | 2011-06-09 04:21:43 +0000 | [diff] [blame] | 10190 | ping_trans_color.gray)+.5); |
| 10191 | |
| 10192 | if (logging != MagickFalse) |
| 10193 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10194 | " to %d", (int)ping_trans_color.gray); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10195 | } |
glennrp | 17a1485 | 2010-05-10 03:01:59 +0000 | [diff] [blame] | 10196 | |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10197 | if (ping_exclude_bKGD == MagickFalse) |
| 10198 | { |
glennrp | 1273f7b | 2011-02-24 03:20:30 +0000 | [diff] [blame] | 10199 | if (mng_info->IsPalette && (int) ping_color_type == PNG_COLOR_TYPE_PALETTE) |
glennrp | 17a1485 | 2010-05-10 03:01:59 +0000 | [diff] [blame] | 10200 | { |
| 10201 | /* |
| 10202 | Identify which colormap entry is the background color. |
| 10203 | */ |
| 10204 | |
glennrp | 17a1485 | 2010-05-10 03:01:59 +0000 | [diff] [blame] | 10205 | number_colors=image_colors; |
| 10206 | |
glennrp | a521b2f | 2010-10-29 04:11:03 +0000 | [diff] [blame] | 10207 | for (i=0; i < (ssize_t) MagickMax(1L*number_colors,1L); i++) |
| 10208 | if (IsPNGColorEqual(image->background_color,image->colormap[i])) |
glennrp | 17a1485 | 2010-05-10 03:01:59 +0000 | [diff] [blame] | 10209 | break; |
| 10210 | |
| 10211 | ping_background.index=(png_byte) i; |
| 10212 | |
glennrp | 3b51f0e | 2010-11-27 18:14:08 +0000 | [diff] [blame] | 10213 | if (logging != MagickFalse) |
glennrp | a521b2f | 2010-10-29 04:11:03 +0000 | [diff] [blame] | 10214 | { |
| 10215 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10216 | " Setting up bKGD chunk with index=%d",(int) i); |
glennrp | a521b2f | 2010-10-29 04:11:03 +0000 | [diff] [blame] | 10217 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10218 | |
cristy | 13d0704 | 2010-11-21 20:56:18 +0000 | [diff] [blame] | 10219 | if (i < (ssize_t) number_colors) |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10220 | { |
| 10221 | ping_have_bKGD = MagickTrue; |
glennrp | 3b51f0e | 2010-11-27 18:14:08 +0000 | [diff] [blame] | 10222 | |
| 10223 | if (logging != MagickFalse) |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10224 | { |
| 10225 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10226 | " background =(%d,%d,%d)", |
| 10227 | (int) ping_background.red, |
| 10228 | (int) ping_background.green, |
| 10229 | (int) ping_background.blue); |
| 10230 | } |
| 10231 | } |
glennrp | a521b2f | 2010-10-29 04:11:03 +0000 | [diff] [blame] | 10232 | |
glennrp | d6bf161 | 2010-12-17 17:28:54 +0000 | [diff] [blame] | 10233 | else /* Can't happen */ |
glennrp | 3c21811 | 2010-11-27 15:31:26 +0000 | [diff] [blame] | 10234 | { |
glennrp | 3b51f0e | 2010-11-27 18:14:08 +0000 | [diff] [blame] | 10235 | if (logging != MagickFalse) |
| 10236 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10237 | " No room in PLTE to add bKGD color"); |
glennrp | 3c21811 | 2010-11-27 15:31:26 +0000 | [diff] [blame] | 10238 | ping_have_bKGD = MagickFalse; |
| 10239 | } |
glennrp | 17a1485 | 2010-05-10 03:01:59 +0000 | [diff] [blame] | 10240 | } |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10241 | } |
glennrp | 17a1485 | 2010-05-10 03:01:59 +0000 | [diff] [blame] | 10242 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10243 | if (logging != MagickFalse) |
| 10244 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 1a56e9c | 2012-04-25 17:06:57 +0000 | [diff] [blame] | 10245 | " PNG color type: %s (%d)", PngColorTypeToString(ping_color_type), |
| 10246 | ping_color_type); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10247 | /* |
| 10248 | Initialize compression level and filtering. |
| 10249 | */ |
| 10250 | if (logging != MagickFalse) |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10251 | { |
| 10252 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10253 | " Setting up deflate compression"); |
| 10254 | |
| 10255 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10256 | " Compression buffer size: 32768"); |
| 10257 | } |
| 10258 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10259 | png_set_compression_buffer_size(ping,32768L); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10260 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10261 | if (logging != MagickFalse) |
| 10262 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10263 | " Compression mem level: 9"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10264 | |
cristy | 4054bfb | 2011-08-29 23:41:39 +0000 | [diff] [blame] | 10265 | png_set_compression_mem_level(ping, 9); |
| 10266 | |
glennrp | 10d739e | 2011-06-29 18:00:52 +0000 | [diff] [blame] | 10267 | /* Untangle the "-quality" setting: |
| 10268 | |
| 10269 | Undefined is 0; the default is used. |
| 10270 | Default is 75 |
| 10271 | |
| 10272 | 10's digit: |
| 10273 | |
glennrp | ef804f5 | 2013-09-24 00:38:27 +0000 | [diff] [blame] | 10274 | 0 or omitted: Use Z_HUFFMAN_ONLY strategy with the |
glennrp | 10d739e | 2011-06-29 18:00:52 +0000 | [diff] [blame] | 10275 | zlib default compression level |
| 10276 | |
| 10277 | 1-9: the zlib compression level |
| 10278 | |
| 10279 | 1's digit: |
| 10280 | |
| 10281 | 0-4: the PNG filter method |
| 10282 | |
| 10283 | 5: libpng adaptive filtering if compression level > 5 |
| 10284 | libpng filter type "none" if compression level <= 5 |
| 10285 | or if image is grayscale or palette |
glennrp | 750105b | 2012-04-25 16:20:45 +0000 | [diff] [blame] | 10286 | |
glennrp | 10d739e | 2011-06-29 18:00:52 +0000 | [diff] [blame] | 10287 | 6: libpng adaptive filtering |
| 10288 | |
| 10289 | 7: "LOCO" filtering (intrapixel differing) if writing |
glennrp | 85dfe1a | 2013-09-24 17:30:39 +0000 | [diff] [blame] | 10290 | a MNG, otherwise "none". Did not work in IM-6.7.0-9 |
glennrp | 10d739e | 2011-06-29 18:00:52 +0000 | [diff] [blame] | 10291 | and earlier because of a missing "else". |
| 10292 | |
glennrp | 85dfe1a | 2013-09-24 17:30:39 +0000 | [diff] [blame] | 10293 | 8: Z_RLE strategy (or Z_HUFFMAN_ONLY if quality < 10), adaptive |
| 10294 | filtering. Unused prior to IM-6.7.0-10, was same as 6 |
glennrp | 10d739e | 2011-06-29 18:00:52 +0000 | [diff] [blame] | 10295 | |
glennrp | ef804f5 | 2013-09-24 00:38:27 +0000 | [diff] [blame] | 10296 | 9: Z_RLE strategy (or Z_HUFFMAN_ONLY if quality < 10), no PNG filters |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 10297 | Unused prior to IM-6.7.0-10, was same as 6 |
glennrp | 10d739e | 2011-06-29 18:00:52 +0000 | [diff] [blame] | 10298 | |
| 10299 | Note that using the -quality option, not all combinations of |
| 10300 | PNG filter type, zlib compression level, and zlib compression |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 10301 | strategy are possible. This will be addressed soon in a |
| 10302 | release that accomodates "-define png:compression-strategy", etc. |
glennrp | 10d739e | 2011-06-29 18:00:52 +0000 | [diff] [blame] | 10303 | |
| 10304 | */ |
| 10305 | |
dirk | 29dd80e | 2013-10-31 23:11:11 +0000 | [diff] [blame] | 10306 | quality=image_info->quality == UndefinedCompressionQuality ? 75UL : |
| 10307 | image_info->quality; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10308 | |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 10309 | if (quality <= 9) |
| 10310 | { |
| 10311 | if (mng_info->write_png_compression_strategy == 0) |
| 10312 | mng_info->write_png_compression_strategy = Z_HUFFMAN_ONLY+1; |
| 10313 | } |
glennrp | 750105b | 2012-04-25 16:20:45 +0000 | [diff] [blame] | 10314 | |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 10315 | else if (mng_info->write_png_compression_level == 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10316 | { |
| 10317 | int |
| 10318 | level; |
| 10319 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 10320 | level=(int) MagickMin((ssize_t) quality/10,9); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10321 | |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 10322 | mng_info->write_png_compression_level = level+1; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10323 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10324 | |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 10325 | if (mng_info->write_png_compression_strategy == 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10326 | { |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 10327 | if ((quality %10) == 8 || (quality %10) == 9) |
glennrp | a24b245 | 2012-06-27 11:38:38 +0000 | [diff] [blame] | 10328 | #ifdef Z_RLE /* Z_RLE was added to zlib-1.2.0 */ |
| 10329 | mng_info->write_png_compression_strategy=Z_RLE+1; |
| 10330 | #else |
| 10331 | mng_info->write_png_compression_strategy = Z_DEFAULT_STRATEGY+1; |
| 10332 | #endif |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10333 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10334 | |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 10335 | if (mng_info->write_png_compression_filter == 0) |
| 10336 | mng_info->write_png_compression_filter=((int) quality % 10) + 1; |
| 10337 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10338 | if (logging != MagickFalse) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10339 | { |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 10340 | if (mng_info->write_png_compression_level) |
| 10341 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10342 | " Compression level: %d", |
| 10343 | (int) mng_info->write_png_compression_level-1); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10344 | |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 10345 | if (mng_info->write_png_compression_strategy) |
| 10346 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10347 | " Compression strategy: %d", |
| 10348 | (int) mng_info->write_png_compression_strategy-1); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10349 | |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 10350 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10351 | " Setting up filtering"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10352 | |
cristy | 4054bfb | 2011-08-29 23:41:39 +0000 | [diff] [blame] | 10353 | if (mng_info->write_png_compression_filter == 6) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10354 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10355 | " Base filter method: ADAPTIVE"); |
cristy | 4054bfb | 2011-08-29 23:41:39 +0000 | [diff] [blame] | 10356 | else if (mng_info->write_png_compression_filter == 0 || |
| 10357 | mng_info->write_png_compression_filter == 1) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10358 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10359 | " Base filter method: NONE"); |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 10360 | else |
| 10361 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10362 | " Base filter method: %d", |
| 10363 | (int) mng_info->write_png_compression_filter-1); |
| 10364 | } |
glennrp | 2b013e4 | 2010-11-24 16:55:50 +0000 | [diff] [blame] | 10365 | |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 10366 | if (mng_info->write_png_compression_level != 0) |
| 10367 | png_set_compression_level(ping,mng_info->write_png_compression_level-1); |
| 10368 | |
| 10369 | if (mng_info->write_png_compression_filter == 6) |
| 10370 | { |
| 10371 | if (((int) ping_color_type == PNG_COLOR_TYPE_GRAY) || |
| 10372 | ((int) ping_color_type == PNG_COLOR_TYPE_PALETTE) || |
| 10373 | (quality < 50)) |
| 10374 | png_set_filter(ping,PNG_FILTER_TYPE_BASE,PNG_NO_FILTERS); |
| 10375 | else |
| 10376 | png_set_filter(ping,PNG_FILTER_TYPE_BASE,PNG_ALL_FILTERS); |
| 10377 | } |
cristy | 4054bfb | 2011-08-29 23:41:39 +0000 | [diff] [blame] | 10378 | else if (mng_info->write_png_compression_filter == 7 || |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 10379 | mng_info->write_png_compression_filter == 10) |
| 10380 | png_set_filter(ping,PNG_FILTER_TYPE_BASE,PNG_ALL_FILTERS); |
| 10381 | |
| 10382 | else if (mng_info->write_png_compression_filter == 8) |
| 10383 | { |
| 10384 | #if defined(PNG_MNG_FEATURES_SUPPORTED) && defined(PNG_INTRAPIXEL_DIFFERENCING) |
| 10385 | if (mng_info->write_mng) |
| 10386 | { |
| 10387 | if (((int) ping_color_type == PNG_COLOR_TYPE_RGB) || |
| 10388 | ((int) ping_color_type == PNG_COLOR_TYPE_RGBA)) |
| 10389 | ping_filter_method=PNG_INTRAPIXEL_DIFFERENCING; |
| 10390 | } |
| 10391 | #endif |
cristy | 4054bfb | 2011-08-29 23:41:39 +0000 | [diff] [blame] | 10392 | png_set_filter(ping,PNG_FILTER_TYPE_BASE,PNG_NO_FILTERS); |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 10393 | } |
| 10394 | |
| 10395 | else if (mng_info->write_png_compression_filter == 9) |
| 10396 | png_set_filter(ping,PNG_FILTER_TYPE_BASE,PNG_NO_FILTERS); |
| 10397 | |
| 10398 | else if (mng_info->write_png_compression_filter != 0) |
| 10399 | png_set_filter(ping,PNG_FILTER_TYPE_BASE, |
| 10400 | mng_info->write_png_compression_filter-1); |
| 10401 | |
| 10402 | if (mng_info->write_png_compression_strategy != 0) |
| 10403 | png_set_compression_strategy(ping, |
| 10404 | mng_info->write_png_compression_strategy-1); |
| 10405 | |
glennrp | dec72c9 | 2013-02-26 17:42:47 +0000 | [diff] [blame] | 10406 | ping_interlace_method=image_info->interlace != NoInterlace; |
| 10407 | |
| 10408 | if (mng_info->write_mng) |
| 10409 | png_set_sig_bytes(ping,8); |
| 10410 | |
| 10411 | /* Bail out if cannot meet defined png:bit-depth or png:color-type */ |
| 10412 | |
| 10413 | if (mng_info->write_png_colortype != 0) |
| 10414 | { |
| 10415 | if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_GRAY) |
| 10416 | if (ping_have_color != MagickFalse) |
| 10417 | { |
| 10418 | ping_color_type = PNG_COLOR_TYPE_RGB; |
| 10419 | |
| 10420 | if (ping_bit_depth < 8) |
| 10421 | ping_bit_depth=8; |
| 10422 | } |
| 10423 | |
| 10424 | if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_GRAY_ALPHA) |
| 10425 | if (ping_have_color != MagickFalse) |
| 10426 | ping_color_type = PNG_COLOR_TYPE_RGB_ALPHA; |
| 10427 | } |
| 10428 | |
| 10429 | if (ping_need_colortype_warning != MagickFalse || |
| 10430 | ((mng_info->write_png_depth && |
| 10431 | (int) mng_info->write_png_depth != ping_bit_depth) || |
| 10432 | (mng_info->write_png_colortype && |
| 10433 | ((int) mng_info->write_png_colortype-1 != ping_color_type && |
| 10434 | mng_info->write_png_colortype != 7 && |
| 10435 | !(mng_info->write_png_colortype == 5 && ping_color_type == 0))))) |
| 10436 | { |
| 10437 | if (logging != MagickFalse) |
| 10438 | { |
| 10439 | if (ping_need_colortype_warning != MagickFalse) |
| 10440 | { |
| 10441 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10442 | " Image has transparency but tRNS chunk was excluded"); |
| 10443 | } |
| 10444 | |
| 10445 | if (mng_info->write_png_depth) |
| 10446 | { |
| 10447 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10448 | " Defined png:bit-depth=%u, Computed depth=%u", |
| 10449 | mng_info->write_png_depth, |
| 10450 | ping_bit_depth); |
| 10451 | } |
| 10452 | |
| 10453 | if (mng_info->write_png_colortype) |
| 10454 | { |
| 10455 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10456 | " Defined png:color-type=%u, Computed color type=%u", |
| 10457 | mng_info->write_png_colortype-1, |
| 10458 | ping_color_type); |
| 10459 | } |
| 10460 | } |
| 10461 | |
| 10462 | png_warning(ping, |
| 10463 | "Cannot write image with defined png:bit-depth or png:color-type."); |
| 10464 | } |
| 10465 | |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 10466 | if (image_matte != MagickFalse && image->alpha_trait == UndefinedPixelTrait) |
glennrp | dec72c9 | 2013-02-26 17:42:47 +0000 | [diff] [blame] | 10467 | { |
| 10468 | /* Add an opaque matte channel */ |
| 10469 | image->alpha_trait = BlendPixelTrait; |
| 10470 | (void) SetImageAlpha(image,OpaqueAlpha,exception); |
| 10471 | |
| 10472 | if (logging != MagickFalse) |
| 10473 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10474 | " Added an opaque matte channel"); |
| 10475 | } |
| 10476 | |
| 10477 | if (number_transparent != 0 || number_semitransparent != 0) |
| 10478 | { |
| 10479 | if (ping_color_type < 4) |
| 10480 | { |
| 10481 | ping_have_tRNS=MagickTrue; |
| 10482 | if (logging != MagickFalse) |
| 10483 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10484 | " Setting ping_have_tRNS=MagickTrue."); |
| 10485 | } |
| 10486 | } |
| 10487 | |
| 10488 | if (logging != MagickFalse) |
| 10489 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10490 | " Writing PNG header chunks"); |
| 10491 | |
| 10492 | png_set_IHDR(ping,ping_info,ping_width,ping_height, |
| 10493 | ping_bit_depth,ping_color_type, |
| 10494 | ping_interlace_method,ping_compression_method, |
| 10495 | ping_filter_method); |
| 10496 | |
| 10497 | if (ping_color_type == 3 && ping_have_PLTE != MagickFalse) |
| 10498 | { |
| 10499 | png_set_PLTE(ping,ping_info,palette,number_colors); |
| 10500 | |
| 10501 | if (logging != MagickFalse) |
| 10502 | { |
| 10503 | for (i=0; i< (ssize_t) number_colors; i++) |
| 10504 | { |
| 10505 | if (i < ping_num_trans) |
| 10506 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10507 | " PLTE[%d] = (%d,%d,%d), tRNS[%d] = (%d)", |
| 10508 | (int) i, |
| 10509 | (int) palette[i].red, |
| 10510 | (int) palette[i].green, |
| 10511 | (int) palette[i].blue, |
| 10512 | (int) i, |
| 10513 | (int) ping_trans_alpha[i]); |
| 10514 | else |
| 10515 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10516 | " PLTE[%d] = (%d,%d,%d)", |
| 10517 | (int) i, |
| 10518 | (int) palette[i].red, |
| 10519 | (int) palette[i].green, |
| 10520 | (int) palette[i].blue); |
| 10521 | } |
| 10522 | } |
| 10523 | } |
| 10524 | |
cristy | 0d57eec | 2011-09-04 22:13:56 +0000 | [diff] [blame] | 10525 | /* Only write the iCCP chunk if we are not writing the sRGB chunk. */ |
| 10526 | if (ping_exclude_sRGB != MagickFalse || |
glennrp | 3d62786 | 2013-02-26 00:19:34 +0000 | [diff] [blame] | 10527 | (!png_get_valid(ping,ping_info,PNG_INFO_sRGB))) |
cristy | 0d57eec | 2011-09-04 22:13:56 +0000 | [diff] [blame] | 10528 | { |
| 10529 | if ((ping_exclude_tEXt == MagickFalse || |
| 10530 | ping_exclude_zTXt == MagickFalse) && |
| 10531 | (ping_exclude_iCCP == MagickFalse || ping_exclude_zCCP == MagickFalse)) |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 10532 | { |
| 10533 | ResetImageProfileIterator(image); |
| 10534 | for (name=GetNextImageProfile(image); name != (const char *) NULL; ) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10535 | { |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 10536 | profile=GetImageProfile(image,name); |
| 10537 | |
| 10538 | if (profile != (StringInfo *) NULL) |
| 10539 | { |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 10540 | #ifdef PNG_WRITE_iCCP_SUPPORTED |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 10541 | if ((LocaleCompare(name,"ICC") == 0) || |
| 10542 | (LocaleCompare(name,"ICM") == 0)) |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10543 | { |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 10544 | |
| 10545 | if (ping_exclude_iCCP == MagickFalse) |
| 10546 | { |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 10547 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10548 | " Setting up iCCP chunk"); |
glennrp | 6647b97 | 2015-01-12 04:39:14 +0000 | [diff] [blame] | 10549 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 10550 | png_set_iCCP(ping,ping_info,(png_charp) name,0, |
glennrp | e4017e3 | 2011-01-08 17:16:09 +0000 | [diff] [blame] | 10551 | #if (PNG_LIBPNG_VER < 10500) |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 10552 | (png_charp) GetStringInfoDatum(profile), |
glennrp | e4017e3 | 2011-01-08 17:16:09 +0000 | [diff] [blame] | 10553 | #else |
Cristy | 120b581 | 2015-09-14 17:33:11 -0400 | [diff] [blame] | 10554 | (const png_byte *) GetStringInfoDatum(profile), |
glennrp | e4017e3 | 2011-01-08 17:16:09 +0000 | [diff] [blame] | 10555 | #endif |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 10556 | (png_uint_32) GetStringInfoLength(profile)); |
glennrp | 918b9dc | 2013-04-03 13:41:41 +0000 | [diff] [blame] | 10557 | ping_have_iCCP = MagickTrue; |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 10558 | } |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10559 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10560 | |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 10561 | else |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10562 | #endif |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 10563 | if (ping_exclude_zCCP == MagickFalse) |
| 10564 | { |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 10565 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10566 | " Setting up zTXT chunk with uuencoded ICC"); |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 10567 | Magick_png_write_raw_profile(image_info,ping,ping_info, |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 10568 | (unsigned char *) name,(unsigned char *) name, |
| 10569 | GetStringInfoDatum(profile), |
| 10570 | (png_uint_32) GetStringInfoLength(profile)); |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 10571 | ping_have_iCCP = MagickTrue; |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 10572 | } |
| 10573 | } |
glennrp | 0b206f5 | 2011-01-07 04:55:32 +0000 | [diff] [blame] | 10574 | |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 10575 | if (logging != MagickFalse) |
| 10576 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10577 | " Setting up text chunk with %s profile",name); |
| 10578 | |
| 10579 | name=GetNextImageProfile(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10580 | } |
cristy | 0d57eec | 2011-09-04 22:13:56 +0000 | [diff] [blame] | 10581 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10582 | } |
| 10583 | |
| 10584 | #if defined(PNG_WRITE_sRGB_SUPPORTED) |
| 10585 | if ((mng_info->have_write_global_srgb == 0) && |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 10586 | ping_have_iCCP != MagickTrue && |
| 10587 | (ping_have_sRGB != MagickFalse || |
| 10588 | png_get_valid(ping,ping_info,PNG_INFO_sRGB))) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10589 | { |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10590 | if (ping_exclude_sRGB == MagickFalse) |
| 10591 | { |
| 10592 | /* |
| 10593 | Note image rendering intent. |
| 10594 | */ |
| 10595 | if (logging != MagickFalse) |
| 10596 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10597 | " Setting up sRGB chunk"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10598 | |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10599 | (void) png_set_sRGB(ping,ping_info,( |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 10600 | Magick_RenderingIntent_to_PNG_RenderingIntent( |
| 10601 | image->rendering_intent))); |
glennrp | 918b9dc | 2013-04-03 13:41:41 +0000 | [diff] [blame] | 10602 | |
| 10603 | ping_have_sRGB = MagickTrue; |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10604 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10605 | } |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10606 | |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 10607 | if ((!mng_info->write_mng) || (!png_get_valid(ping,ping_info,PNG_INFO_sRGB))) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10608 | #endif |
| 10609 | { |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 10610 | if (ping_exclude_gAMA == MagickFalse && |
glennrp | 918b9dc | 2013-04-03 13:41:41 +0000 | [diff] [blame] | 10611 | ping_have_iCCP == MagickFalse && |
| 10612 | ping_have_sRGB == MagickFalse && |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 10613 | (ping_exclude_sRGB == MagickFalse || |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10614 | (image->gamma < .45 || image->gamma > .46))) |
| 10615 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10616 | if ((mng_info->have_write_global_gama == 0) && (image->gamma != 0.0)) |
| 10617 | { |
| 10618 | /* |
| 10619 | Note image gamma. |
| 10620 | To do: check for cHRM+gAMA == sRGB, and write sRGB instead. |
| 10621 | */ |
| 10622 | if (logging != MagickFalse) |
| 10623 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10624 | " Setting up gAMA chunk"); |
glennrp | 3b51f0e | 2010-11-27 18:14:08 +0000 | [diff] [blame] | 10625 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10626 | png_set_gAMA(ping,ping_info,image->gamma); |
| 10627 | } |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10628 | } |
glennrp | 2b013e4 | 2010-11-24 16:55:50 +0000 | [diff] [blame] | 10629 | |
glennrp | 918b9dc | 2013-04-03 13:41:41 +0000 | [diff] [blame] | 10630 | if (ping_exclude_cHRM == MagickFalse && ping_have_sRGB == MagickFalse) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10631 | { |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10632 | if ((mng_info->have_write_global_chrm == 0) && |
| 10633 | (image->chromaticity.red_primary.x != 0.0)) |
| 10634 | { |
| 10635 | /* |
| 10636 | Note image chromaticity. |
glennrp | 918b9dc | 2013-04-03 13:41:41 +0000 | [diff] [blame] | 10637 | Note: if cHRM+gAMA == sRGB write sRGB instead. |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10638 | */ |
| 10639 | PrimaryInfo |
| 10640 | bp, |
| 10641 | gp, |
| 10642 | rp, |
| 10643 | wp; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10644 | |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10645 | wp=image->chromaticity.white_point; |
| 10646 | rp=image->chromaticity.red_primary; |
| 10647 | gp=image->chromaticity.green_primary; |
| 10648 | bp=image->chromaticity.blue_primary; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10649 | |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10650 | if (logging != MagickFalse) |
| 10651 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10652 | " Setting up cHRM chunk"); |
glennrp | 3b51f0e | 2010-11-27 18:14:08 +0000 | [diff] [blame] | 10653 | |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10654 | png_set_cHRM(ping,ping_info,wp.x,wp.y,rp.x,rp.y,gp.x,gp.y, |
| 10655 | bp.x,bp.y); |
| 10656 | } |
| 10657 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10658 | } |
glennrp | dfd7080 | 2010-11-14 01:23:35 +0000 | [diff] [blame] | 10659 | |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10660 | if (ping_exclude_bKGD == MagickFalse) |
glennrp | dfd7080 | 2010-11-14 01:23:35 +0000 | [diff] [blame] | 10661 | { |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10662 | if (ping_have_bKGD != MagickFalse) |
glennrp | c6c391a | 2011-04-27 02:23:56 +0000 | [diff] [blame] | 10663 | { |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10664 | png_set_bKGD(ping,ping_info,&ping_background); |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 10665 | if (logging != MagickFalse) |
glennrp | c6c391a | 2011-04-27 02:23:56 +0000 | [diff] [blame] | 10666 | { |
| 10667 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10668 | " Setting up bKGD chunk"); |
| 10669 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10670 | " background color = (%d,%d,%d)", |
| 10671 | (int) ping_background.red, |
| 10672 | (int) ping_background.green, |
| 10673 | (int) ping_background.blue); |
| 10674 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10675 | " index = %d, gray=%d", |
| 10676 | (int) ping_background.index, |
| 10677 | (int) ping_background.gray); |
| 10678 | } |
| 10679 | } |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10680 | } |
| 10681 | |
| 10682 | if (ping_exclude_pHYs == MagickFalse) |
| 10683 | { |
| 10684 | if (ping_have_pHYs != MagickFalse) |
| 10685 | { |
| 10686 | png_set_pHYs(ping,ping_info, |
| 10687 | ping_pHYs_x_resolution, |
| 10688 | ping_pHYs_y_resolution, |
| 10689 | ping_pHYs_unit_type); |
glennrp | 823b55c | 2011-03-14 18:46:46 +0000 | [diff] [blame] | 10690 | |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 10691 | if (logging != MagickFalse) |
glennrp | 823b55c | 2011-03-14 18:46:46 +0000 | [diff] [blame] | 10692 | { |
| 10693 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10694 | " Setting up pHYs chunk"); |
| 10695 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10696 | " x_resolution=%lu", |
| 10697 | (unsigned long) ping_pHYs_x_resolution); |
| 10698 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10699 | " y_resolution=%lu", |
| 10700 | (unsigned long) ping_pHYs_y_resolution); |
| 10701 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10702 | " unit_type=%lu", |
| 10703 | (unsigned long) ping_pHYs_unit_type); |
| 10704 | } |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10705 | } |
glennrp | dfd7080 | 2010-11-14 01:23:35 +0000 | [diff] [blame] | 10706 | } |
| 10707 | |
| 10708 | #if defined(PNG_oFFs_SUPPORTED) |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 10709 | if (ping_exclude_oFFs == MagickFalse) |
glennrp | dfd7080 | 2010-11-14 01:23:35 +0000 | [diff] [blame] | 10710 | { |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10711 | if (image->page.x || image->page.y) |
| 10712 | { |
| 10713 | png_set_oFFs(ping,ping_info,(png_int_32) image->page.x, |
| 10714 | (png_int_32) image->page.y, 0); |
glennrp | dfd7080 | 2010-11-14 01:23:35 +0000 | [diff] [blame] | 10715 | |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10716 | if (logging != MagickFalse) |
| 10717 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10718 | " Setting up oFFs chunk with x=%d, y=%d, units=0", |
| 10719 | (int) image->page.x, (int) image->page.y); |
| 10720 | } |
glennrp | dfd7080 | 2010-11-14 01:23:35 +0000 | [diff] [blame] | 10721 | } |
| 10722 | #endif |
| 10723 | |
dirk | fd6fd07 | 2014-10-24 21:10:08 +0000 | [diff] [blame] | 10724 | #if defined(PNG_tIME_SUPPORTED) |
| 10725 | if (ping_exclude_tIME == MagickFalse) |
| 10726 | { |
| 10727 | const char |
| 10728 | *timestamp; |
| 10729 | |
glennrp | 39d99e1 | 2014-10-26 20:57:13 +0000 | [diff] [blame] | 10730 | if (image->taint == MagickFalse) |
| 10731 | { |
| 10732 | timestamp=GetImageOption(image_info,"png:tIME"); |
| 10733 | |
| 10734 | if (timestamp == (const char *) NULL) |
| 10735 | timestamp=GetImageProperty(image,"png:tIME",exception); |
| 10736 | } |
| 10737 | |
dirk | fd6fd07 | 2014-10-24 21:10:08 +0000 | [diff] [blame] | 10738 | else |
| 10739 | { |
glennrp | 39d99e1 | 2014-10-26 20:57:13 +0000 | [diff] [blame] | 10740 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10741 | " Reset tIME in tainted image"); |
| 10742 | |
| 10743 | timestamp=GetImageProperty(image,"date:modify",exception); |
dirk | fd6fd07 | 2014-10-24 21:10:08 +0000 | [diff] [blame] | 10744 | } |
glennrp | 39d99e1 | 2014-10-26 20:57:13 +0000 | [diff] [blame] | 10745 | |
| 10746 | if (timestamp != (const char *) NULL) |
| 10747 | write_tIME_chunk(image,ping,ping_info,timestamp,exception); |
dirk | fd6fd07 | 2014-10-24 21:10:08 +0000 | [diff] [blame] | 10748 | } |
| 10749 | #endif |
glennrp | 6647b97 | 2015-01-12 04:39:14 +0000 | [diff] [blame] | 10750 | |
glennrp | da8f3a7 | 2011-02-27 23:54:12 +0000 | [diff] [blame] | 10751 | if (mng_info->need_blob != MagickFalse) |
| 10752 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 10753 | if (OpenBlob(image_info,image,WriteBinaryBlobMode,exception) == |
glennrp | da8f3a7 | 2011-02-27 23:54:12 +0000 | [diff] [blame] | 10754 | MagickFalse) |
| 10755 | png_error(ping,"WriteBlob Failed"); |
| 10756 | |
| 10757 | ping_have_blob=MagickTrue; |
| 10758 | } |
| 10759 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10760 | png_write_info_before_PLTE(ping, ping_info); |
glennrp | 991d11d | 2010-11-12 21:55:28 +0000 | [diff] [blame] | 10761 | |
glennrp | 39992b4 | 2010-11-14 00:03:43 +0000 | [diff] [blame] | 10762 | if (ping_have_tRNS != MagickFalse && ping_color_type < 4) |
glennrp | 991d11d | 2010-11-12 21:55:28 +0000 | [diff] [blame] | 10763 | { |
glennrp | 3b51f0e | 2010-11-27 18:14:08 +0000 | [diff] [blame] | 10764 | if (logging != MagickFalse) |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10765 | { |
| 10766 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10767 | " Calling png_set_tRNS with num_trans=%d",ping_num_trans); |
| 10768 | } |
| 10769 | |
| 10770 | if (ping_color_type == 3) |
| 10771 | (void) png_set_tRNS(ping, ping_info, |
| 10772 | ping_trans_alpha, |
| 10773 | ping_num_trans, |
| 10774 | NULL); |
| 10775 | |
| 10776 | else |
| 10777 | { |
| 10778 | (void) png_set_tRNS(ping, ping_info, |
| 10779 | NULL, |
| 10780 | 0, |
| 10781 | &ping_trans_color); |
| 10782 | |
glennrp | 3b51f0e | 2010-11-27 18:14:08 +0000 | [diff] [blame] | 10783 | if (logging != MagickFalse) |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10784 | { |
| 10785 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | c8cbc5d | 2011-01-01 00:12:34 +0000 | [diff] [blame] | 10786 | " tRNS color =(%d,%d,%d)", |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10787 | (int) ping_trans_color.red, |
| 10788 | (int) ping_trans_color.green, |
| 10789 | (int) ping_trans_color.blue); |
| 10790 | } |
| 10791 | } |
glennrp | 991d11d | 2010-11-12 21:55:28 +0000 | [diff] [blame] | 10792 | } |
| 10793 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10794 | /* write any png-chunk-b profiles */ |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 10795 | (void) Magick_png_write_chunk_from_profile(image,"PNG-chunk-b",logging); |
glennrp | da8f3a7 | 2011-02-27 23:54:12 +0000 | [diff] [blame] | 10796 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10797 | png_write_info(ping,ping_info); |
glennrp | 991d11d | 2010-11-12 21:55:28 +0000 | [diff] [blame] | 10798 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10799 | /* write any PNG-chunk-m profiles */ |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 10800 | (void) Magick_png_write_chunk_from_profile(image,"PNG-chunk-m",logging); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10801 | |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10802 | if (ping_exclude_vpAg == MagickFalse) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10803 | { |
glennrp | 4f25bd0 | 2011-01-01 18:51:28 +0000 | [diff] [blame] | 10804 | if ((image->page.width != 0 && image->page.width != image->columns) || |
| 10805 | (image->page.height != 0 && image->page.height != image->rows)) |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10806 | { |
| 10807 | unsigned char |
| 10808 | chunk[14]; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10809 | |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10810 | (void) WriteBlobMSBULong(image,9L); /* data length=8 */ |
| 10811 | PNGType(chunk,mng_vpAg); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 10812 | LogPNGChunk(logging,mng_vpAg,9L); |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 10813 | PNGLong(chunk+4,(png_uint_32) image->page.width); |
| 10814 | PNGLong(chunk+8,(png_uint_32) image->page.height); |
| 10815 | chunk[12]=0; /* unit = pixels */ |
| 10816 | (void) WriteBlob(image,13,chunk); |
| 10817 | (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); |
| 10818 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10819 | } |
| 10820 | |
| 10821 | #if (PNG_LIBPNG_VER == 10206) |
glennrp | 9c1eb07 | 2010-06-06 22:19:15 +0000 | [diff] [blame] | 10822 | /* avoid libpng-1.2.6 bug by setting PNG_HAVE_IDAT flag */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10823 | #define PNG_HAVE_IDAT 0x04 |
glennrp | 9c1eb07 | 2010-06-06 22:19:15 +0000 | [diff] [blame] | 10824 | ping->mode |= PNG_HAVE_IDAT; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10825 | #undef PNG_HAVE_IDAT |
| 10826 | #endif |
| 10827 | |
| 10828 | png_set_packing(ping); |
| 10829 | /* |
| 10830 | Allocate memory. |
| 10831 | */ |
| 10832 | rowbytes=image->columns; |
glennrp | b4a1341 | 2010-05-05 12:47:19 +0000 | [diff] [blame] | 10833 | if (image_depth > 8) |
| 10834 | rowbytes*=2; |
cristy | 7202c10 | 2010-05-05 19:18:28 +0000 | [diff] [blame] | 10835 | switch (ping_color_type) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10836 | { |
glennrp | b4a1341 | 2010-05-05 12:47:19 +0000 | [diff] [blame] | 10837 | case PNG_COLOR_TYPE_RGB: |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10838 | rowbytes*=3; |
glennrp | b4a1341 | 2010-05-05 12:47:19 +0000 | [diff] [blame] | 10839 | break; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10840 | |
glennrp | b4a1341 | 2010-05-05 12:47:19 +0000 | [diff] [blame] | 10841 | case PNG_COLOR_TYPE_GRAY_ALPHA: |
| 10842 | rowbytes*=2; |
| 10843 | break; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10844 | |
glennrp | b4a1341 | 2010-05-05 12:47:19 +0000 | [diff] [blame] | 10845 | case PNG_COLOR_TYPE_RGBA: |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10846 | rowbytes*=4; |
glennrp | b4a1341 | 2010-05-05 12:47:19 +0000 | [diff] [blame] | 10847 | break; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10848 | |
glennrp | b4a1341 | 2010-05-05 12:47:19 +0000 | [diff] [blame] | 10849 | default: |
| 10850 | break; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10851 | } |
glennrp | 3b51f0e | 2010-11-27 18:14:08 +0000 | [diff] [blame] | 10852 | |
| 10853 | if (logging != MagickFalse) |
glennrp | b4a1341 | 2010-05-05 12:47:19 +0000 | [diff] [blame] | 10854 | { |
| 10855 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10856 | " Writing PNG image data"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10857 | |
glennrp | b4a1341 | 2010-05-05 12:47:19 +0000 | [diff] [blame] | 10858 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 10859 | " Allocating %.20g bytes of memory for pixels",(double) rowbytes); |
glennrp | b4a1341 | 2010-05-05 12:47:19 +0000 | [diff] [blame] | 10860 | } |
cristy | 0997332 | 2013-06-30 21:06:30 +0000 | [diff] [blame] | 10861 | pixel_info=AcquireVirtualMemory(rowbytes,sizeof(*ping_pixels)); |
| 10862 | if (pixel_info == (MemoryInfo *) NULL) |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 10863 | png_error(ping,"Allocation of memory for pixels failed"); |
cristy | 0997332 | 2013-06-30 21:06:30 +0000 | [diff] [blame] | 10864 | ping_pixels=(unsigned char *) GetVirtualMemoryBlob(pixel_info); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10865 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10866 | /* |
| 10867 | Initialize image scanlines. |
| 10868 | */ |
cristy | 5f766ef | 2014-12-14 21:12:47 +0000 | [diff] [blame] | 10869 | quantum_info=AcquireQuantumInfo(image_info,image); |
cristy | ed55252 | 2009-10-16 14:04:35 +0000 | [diff] [blame] | 10870 | if (quantum_info == (QuantumInfo *) NULL) |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 10871 | png_error(ping,"Memory allocation for quantum_info failed"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10872 | quantum_info->format=UndefinedQuantumFormat; |
| 10873 | quantum_info->depth=image_depth; |
glennrp | 4b840d7 | 2012-11-22 16:01:16 +0000 | [diff] [blame] | 10874 | (void) SetQuantumEndian(image,quantum_info,MSBEndian); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10875 | num_passes=png_set_interlace_handling(ping); |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 10876 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10877 | if ((!mng_info->write_png8 && !mng_info->write_png24 && |
glennrp | fd164d2 | 2013-01-26 21:10:22 +0000 | [diff] [blame] | 10878 | !mng_info->write_png48 && !mng_info->write_png64 && |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 10879 | !mng_info->write_png32) && |
| 10880 | (mng_info->IsPalette || |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10881 | (image_info->type == BilevelType)) && |
glennrp | 8d57966 | 2011-02-23 02:05:02 +0000 | [diff] [blame] | 10882 | image_matte == MagickFalse && |
| 10883 | ping_have_non_bw == MagickFalse) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10884 | { |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 10885 | /* Palette, Bilevel, or Opaque Monochrome */ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 10886 | register const Quantum |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10887 | *p; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10888 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10889 | quantum_info->depth=8; |
| 10890 | for (pass=0; pass < num_passes; pass++) |
| 10891 | { |
| 10892 | /* |
| 10893 | Convert PseudoClass image to a PNG monochrome image. |
| 10894 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 10895 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10896 | { |
glennrp | d71e86a | 2011-02-24 01:28:37 +0000 | [diff] [blame] | 10897 | if (logging != MagickFalse && y == 0) |
glennrp | 3b51f0e | 2010-11-27 18:14:08 +0000 | [diff] [blame] | 10898 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10899 | " Writing row of pixels (0)"); |
glennrp | a521b2f | 2010-10-29 04:11:03 +0000 | [diff] [blame] | 10900 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 10901 | p=GetVirtualPixels(image,0,y,image->columns,1,exception); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10902 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 10903 | if (p == (const Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10904 | break; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10905 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10906 | if (mng_info->IsPalette) |
| 10907 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 10908 | (void) ExportQuantumPixels(image,(CacheView *) NULL, |
| 10909 | quantum_info,GrayQuantum,ping_pixels,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10910 | if (mng_info->write_png_colortype-1 == PNG_COLOR_TYPE_PALETTE && |
| 10911 | mng_info->write_png_depth && |
| 10912 | mng_info->write_png_depth != old_bit_depth) |
| 10913 | { |
| 10914 | /* Undo pixel scaling */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 10915 | for (i=0; i < (ssize_t) image->columns; i++) |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 10916 | *(ping_pixels+i)=(unsigned char) (*(ping_pixels+i) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10917 | >> (8-old_bit_depth)); |
| 10918 | } |
| 10919 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10920 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10921 | else |
| 10922 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 10923 | (void) ExportQuantumPixels(image,(CacheView *) NULL, |
| 10924 | quantum_info,RedQuantum,ping_pixels,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10925 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10926 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10927 | if (mng_info->write_png_colortype-1 != PNG_COLOR_TYPE_PALETTE) |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 10928 | for (i=0; i < (ssize_t) image->columns; i++) |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 10929 | *(ping_pixels+i)=(unsigned char) ((*(ping_pixels+i) > 127) ? |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10930 | 255 : 0); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10931 | |
glennrp | 3b51f0e | 2010-11-27 18:14:08 +0000 | [diff] [blame] | 10932 | if (logging != MagickFalse && y == 0) |
glennrp | b4a1341 | 2010-05-05 12:47:19 +0000 | [diff] [blame] | 10933 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10934 | " Writing row of pixels (1)"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10935 | |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 10936 | png_write_row(ping,ping_pixels); |
glennrp | af93204 | 2014-11-29 20:44:25 +0000 | [diff] [blame] | 10937 | |
| 10938 | status=SetImageProgress(image,LoadImageTag, |
| 10939 | (MagickOffsetType) (pass * image->rows + y), |
| 10940 | num_passes * image->rows); |
glennrp | 44c2297 | 2015-01-25 03:10:16 +0000 | [diff] [blame] | 10941 | |
glennrp | af93204 | 2014-11-29 20:44:25 +0000 | [diff] [blame] | 10942 | if (status == MagickFalse) |
| 10943 | break; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10944 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10945 | } |
| 10946 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10947 | |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 10948 | else /* Not Palette, Bilevel, or Opaque Monochrome */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10949 | { |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10950 | if ((!mng_info->write_png8 && !mng_info->write_png24 && |
glennrp | fd164d2 | 2013-01-26 21:10:22 +0000 | [diff] [blame] | 10951 | !mng_info->write_png48 && !mng_info->write_png64 && |
| 10952 | !mng_info->write_png32) && (image_matte != MagickFalse || |
| 10953 | (ping_bit_depth >= MAGICKCORE_QUANTUM_DEPTH)) && |
| 10954 | (mng_info->IsPalette) && ping_have_color == MagickFalse) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10955 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 10956 | register const Quantum |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 10957 | *p; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 10958 | |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 10959 | for (pass=0; pass < num_passes; pass++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10960 | { |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 10961 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 10962 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10963 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 10964 | p=GetVirtualPixels(image,0,y,image->columns,1,exception); |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 10965 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 10966 | if (p == (const Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10967 | break; |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 10968 | |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 10969 | if (ping_color_type == PNG_COLOR_TYPE_GRAY) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 10970 | { |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 10971 | if (mng_info->IsPalette) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 10972 | (void) ExportQuantumPixels(image,(CacheView *) NULL, |
| 10973 | quantum_info,GrayQuantum,ping_pixels,exception); |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 10974 | |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 10975 | else |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 10976 | (void) ExportQuantumPixels(image,(CacheView *) NULL, |
| 10977 | quantum_info,RedQuantum,ping_pixels,exception); |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 10978 | |
glennrp | 3b51f0e | 2010-11-27 18:14:08 +0000 | [diff] [blame] | 10979 | if (logging != MagickFalse && y == 0) |
glennrp | b4a1341 | 2010-05-05 12:47:19 +0000 | [diff] [blame] | 10980 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 10981 | " Writing GRAY PNG pixels (2)"); |
glennrp | b4a1341 | 2010-05-05 12:47:19 +0000 | [diff] [blame] | 10982 | } |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 10983 | |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 10984 | else /* PNG_COLOR_TYPE_GRAY_ALPHA */ |
| 10985 | { |
| 10986 | if (logging != MagickFalse && y == 0) |
| 10987 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 10988 | " Writing GRAY_ALPHA PNG pixels (2)"); |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 10989 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 10990 | (void) ExportQuantumPixels(image,(CacheView *) NULL, |
| 10991 | quantum_info,GrayAlphaQuantum,ping_pixels,exception); |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 10992 | } |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 10993 | |
glennrp | 3b51f0e | 2010-11-27 18:14:08 +0000 | [diff] [blame] | 10994 | if (logging != MagickFalse && y == 0) |
glennrp | b4a1341 | 2010-05-05 12:47:19 +0000 | [diff] [blame] | 10995 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 10996 | " Writing row of pixels (2)"); |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 10997 | |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 10998 | png_write_row(ping,ping_pixels); |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 10999 | |
glennrp | af93204 | 2014-11-29 20:44:25 +0000 | [diff] [blame] | 11000 | status=SetImageProgress(image,LoadImageTag, |
| 11001 | (MagickOffsetType) (pass * image->rows + y), |
| 11002 | num_passes * image->rows); |
glennrp | 44c2297 | 2015-01-25 03:10:16 +0000 | [diff] [blame] | 11003 | |
glennrp | af93204 | 2014-11-29 20:44:25 +0000 | [diff] [blame] | 11004 | if (status == MagickFalse) |
| 11005 | break; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11006 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11007 | } |
| 11008 | } |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11009 | |
| 11010 | else |
| 11011 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11012 | register const Quantum |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11013 | *p; |
| 11014 | |
| 11015 | for (pass=0; pass < num_passes; pass++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11016 | { |
glennrp | fd164d2 | 2013-01-26 21:10:22 +0000 | [diff] [blame] | 11017 | if ((image_depth > 8) || |
| 11018 | mng_info->write_png24 || |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11019 | mng_info->write_png32 || |
glennrp | fd164d2 | 2013-01-26 21:10:22 +0000 | [diff] [blame] | 11020 | mng_info->write_png48 || |
| 11021 | mng_info->write_png64 || |
| 11022 | (!mng_info->write_png8 && !mng_info->IsPalette)) |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11023 | { |
| 11024 | for (y=0; y < (ssize_t) image->rows; y++) |
| 11025 | { |
cristy | 862a33c | 2012-05-17 22:49:37 +0000 | [diff] [blame] | 11026 | p=GetVirtualPixels(image,0,y,image->columns,1, exception); |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 11027 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11028 | if (p == (const Quantum *) NULL) |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11029 | break; |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 11030 | |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11031 | if (ping_color_type == PNG_COLOR_TYPE_GRAY) |
| 11032 | { |
| 11033 | if (image->storage_class == DirectClass) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11034 | (void) ExportQuantumPixels(image,(CacheView *) NULL, |
| 11035 | quantum_info,RedQuantum,ping_pixels,exception); |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 11036 | |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11037 | else |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11038 | (void) ExportQuantumPixels(image,(CacheView *) NULL, |
| 11039 | quantum_info,GrayQuantum,ping_pixels,exception); |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11040 | } |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 11041 | |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11042 | else if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) |
| 11043 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11044 | (void) ExportQuantumPixels(image,(CacheView *) NULL, |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 11045 | quantum_info,GrayAlphaQuantum,ping_pixels, |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11046 | exception); |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 11047 | |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11048 | if (logging != MagickFalse && y == 0) |
| 11049 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 11050 | " Writing GRAY_ALPHA PNG pixels (3)"); |
| 11051 | } |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 11052 | |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11053 | else if (image_matte != MagickFalse) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11054 | (void) ExportQuantumPixels(image,(CacheView *) NULL, |
| 11055 | quantum_info,RGBAQuantum,ping_pixels,exception); |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 11056 | |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11057 | else |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11058 | (void) ExportQuantumPixels(image,(CacheView *) NULL, |
| 11059 | quantum_info,RGBQuantum,ping_pixels,exception); |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 11060 | |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11061 | if (logging != MagickFalse && y == 0) |
| 11062 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 11063 | " Writing row of pixels (3)"); |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 11064 | |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 11065 | png_write_row(ping,ping_pixels); |
glennrp | af93204 | 2014-11-29 20:44:25 +0000 | [diff] [blame] | 11066 | |
| 11067 | status=SetImageProgress(image,LoadImageTag, |
| 11068 | (MagickOffsetType) (pass * image->rows + y), |
| 11069 | num_passes * image->rows); |
glennrp | 44c2297 | 2015-01-25 03:10:16 +0000 | [diff] [blame] | 11070 | |
glennrp | af93204 | 2014-11-29 20:44:25 +0000 | [diff] [blame] | 11071 | if (status == MagickFalse) |
| 11072 | break; |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11073 | } |
| 11074 | } |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 11075 | |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11076 | else |
glennrp | fd164d2 | 2013-01-26 21:10:22 +0000 | [diff] [blame] | 11077 | /* not ((image_depth > 8) || |
| 11078 | mng_info->write_png24 || mng_info->write_png32 || |
| 11079 | mng_info->write_png48 || mng_info->write_png64 || |
| 11080 | (!mng_info->write_png8 && !mng_info->IsPalette)) |
| 11081 | */ |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11082 | { |
| 11083 | if ((ping_color_type != PNG_COLOR_TYPE_GRAY) && |
| 11084 | (ping_color_type != PNG_COLOR_TYPE_GRAY_ALPHA)) |
| 11085 | { |
| 11086 | if (logging != MagickFalse) |
| 11087 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 11088 | " pass %d, Image Is not GRAY or GRAY_ALPHA",pass); |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 11089 | |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11090 | quantum_info->depth=8; |
| 11091 | image_depth=8; |
| 11092 | } |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 11093 | |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11094 | for (y=0; y < (ssize_t) image->rows; y++) |
| 11095 | { |
| 11096 | if (logging != MagickFalse && y == 0) |
| 11097 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 11098 | " pass %d, Image Is RGB, 16-bit GRAY, or GRAY_ALPHA",pass); |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 11099 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11100 | p=GetVirtualPixels(image,0,y,image->columns,1, exception); |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 11101 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11102 | if (p == (const Quantum *) NULL) |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11103 | break; |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 11104 | |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11105 | if (ping_color_type == PNG_COLOR_TYPE_GRAY) |
glennrp | 44757ab | 2011-03-17 12:57:03 +0000 | [diff] [blame] | 11106 | { |
glennrp | 4bf8973 | 2011-03-21 13:48:28 +0000 | [diff] [blame] | 11107 | quantum_info->depth=image->depth; |
| 11108 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11109 | (void) ExportQuantumPixels(image,(CacheView *) NULL, |
| 11110 | quantum_info,GrayQuantum,ping_pixels,exception); |
glennrp | 44757ab | 2011-03-17 12:57:03 +0000 | [diff] [blame] | 11111 | } |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 11112 | |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11113 | else if (ping_color_type == PNG_COLOR_TYPE_GRAY_ALPHA) |
| 11114 | { |
| 11115 | if (logging != MagickFalse && y == 0) |
| 11116 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 11117 | " Writing GRAY_ALPHA PNG pixels (4)"); |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 11118 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11119 | (void) ExportQuantumPixels(image,(CacheView *) NULL, |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 11120 | quantum_info,GrayAlphaQuantum,ping_pixels, |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11121 | exception); |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11122 | } |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 11123 | |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11124 | else |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11125 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11126 | (void) ExportQuantumPixels(image,(CacheView *) NULL, |
| 11127 | quantum_info,IndexQuantum,ping_pixels,exception); |
glennrp | 5eae760 | 2011-02-22 15:21:32 +0000 | [diff] [blame] | 11128 | |
| 11129 | if (logging != MagickFalse && y <= 2) |
| 11130 | { |
| 11131 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 1a7d6db | 2011-03-17 13:24:10 +0000 | [diff] [blame] | 11132 | " Writing row of non-gray pixels (4)"); |
glennrp | 5eae760 | 2011-02-22 15:21:32 +0000 | [diff] [blame] | 11133 | |
| 11134 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 11135 | " ping_pixels[0]=%d,ping_pixels[1]=%d", |
| 11136 | (int)ping_pixels[0],(int)ping_pixels[1]); |
| 11137 | } |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11138 | } |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 11139 | png_write_row(ping,ping_pixels); |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 11140 | |
glennrp | af93204 | 2014-11-29 20:44:25 +0000 | [diff] [blame] | 11141 | status=SetImageProgress(image,LoadImageTag, |
| 11142 | (MagickOffsetType) (pass * image->rows + y), |
| 11143 | num_passes * image->rows); |
glennrp | 44c2297 | 2015-01-25 03:10:16 +0000 | [diff] [blame] | 11144 | |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11145 | if (status == MagickFalse) |
| 11146 | break; |
| 11147 | } |
glennrp | af93204 | 2014-11-29 20:44:25 +0000 | [diff] [blame] | 11148 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11149 | } |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11150 | } |
| 11151 | } |
| 11152 | |
cristy | b32b90a | 2009-09-07 21:45:48 +0000 | [diff] [blame] | 11153 | if (quantum_info != (QuantumInfo *) NULL) |
| 11154 | quantum_info=DestroyQuantumInfo(quantum_info); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11155 | |
| 11156 | if (logging != MagickFalse) |
| 11157 | { |
| 11158 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | b4a1341 | 2010-05-05 12:47:19 +0000 | [diff] [blame] | 11159 | " Wrote PNG image data"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11160 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11161 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 11162 | " Width: %.20g",(double) ping_width); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11163 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11164 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 11165 | " Height: %.20g",(double) ping_height); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11166 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11167 | if (mng_info->write_png_depth) |
| 11168 | { |
| 11169 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | 5d6fc9c | 2011-12-27 03:10:42 +0000 | [diff] [blame] | 11170 | " Defined png:bit-depth: %d",mng_info->write_png_depth); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11171 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11172 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11173 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 11174 | " PNG bit-depth written: %d",ping_bit_depth); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11175 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11176 | if (mng_info->write_png_colortype) |
| 11177 | { |
| 11178 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | 5d6fc9c | 2011-12-27 03:10:42 +0000 | [diff] [blame] | 11179 | " Defined png:color-type: %d",mng_info->write_png_colortype-1); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11180 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11181 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11182 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 11183 | " PNG color-type written: %d",ping_color_type); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11184 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11185 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 11186 | " PNG Interlace method: %d",ping_interlace_method); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11187 | } |
| 11188 | /* |
glennrp | a0ed009 | 2011-04-18 16:36:29 +0000 | [diff] [blame] | 11189 | Generate text chunks after IDAT. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11190 | */ |
glennrp | 823b55c | 2011-03-14 18:46:46 +0000 | [diff] [blame] | 11191 | if (ping_exclude_tEXt == MagickFalse || ping_exclude_zTXt == MagickFalse) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11192 | { |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 11193 | ResetImagePropertyIterator(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11194 | property=GetNextImageProperty(image); |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 11195 | while (property != (const char *) NULL) |
| 11196 | { |
| 11197 | png_textp |
| 11198 | text; |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 11199 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11200 | value=GetImageProperty(image,property,exception); |
glennrp | a0ed009 | 2011-04-18 16:36:29 +0000 | [diff] [blame] | 11201 | |
glennrp | e4d5faf | 2013-07-22 00:11:04 +0000 | [diff] [blame] | 11202 | /* Don't write any "png:" or "jpeg:" properties; those are just for |
| 11203 | * "identify" or for passing through to another JPEG |
| 11204 | */ |
| 11205 | if ((LocaleNCompare(property,"png:",4) != 0 && |
glennrp | a3d5f0e | 2014-01-30 18:58:51 +0000 | [diff] [blame] | 11206 | LocaleNCompare(property,"jpeg:",5) != 0) && |
glennrp | e4d5faf | 2013-07-22 00:11:04 +0000 | [diff] [blame] | 11207 | |
glennrp | a0ed009 | 2011-04-18 16:36:29 +0000 | [diff] [blame] | 11208 | |
| 11209 | /* Suppress density and units if we wrote a pHYs chunk */ |
| 11210 | (ping_exclude_pHYs != MagickFalse || |
glennrp | 823b55c | 2011-03-14 18:46:46 +0000 | [diff] [blame] | 11211 | LocaleCompare(property,"density") != 0 || |
glennrp | a0ed009 | 2011-04-18 16:36:29 +0000 | [diff] [blame] | 11212 | LocaleCompare(property,"units") != 0) && |
| 11213 | |
| 11214 | /* Suppress the IM-generated Date:create and Date:modify */ |
| 11215 | (ping_exclude_date == MagickFalse || |
| 11216 | LocaleNCompare(property, "Date:",5) != 0)) |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 11217 | { |
glennrp | c70af4a | 2011-03-07 00:08:23 +0000 | [diff] [blame] | 11218 | if (value != (const char *) NULL) |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 11219 | { |
cristy | a865ccd | 2012-07-28 00:33:10 +0000 | [diff] [blame] | 11220 | |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 11221 | #if PNG_LIBPNG_VER >= 10400 |
cristy | a865ccd | 2012-07-28 00:33:10 +0000 | [diff] [blame] | 11222 | text=(png_textp) png_malloc(ping, |
| 11223 | (png_alloc_size_t) sizeof(png_text)); |
| 11224 | #else |
| 11225 | text=(png_textp) png_malloc(ping,(png_size_t) sizeof(png_text)); |
| 11226 | #endif |
glennrp | c70af4a | 2011-03-07 00:08:23 +0000 | [diff] [blame] | 11227 | text[0].key=(char *) property; |
| 11228 | text[0].text=(char *) value; |
| 11229 | text[0].text_length=strlen(value); |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 11230 | |
glennrp | c70af4a | 2011-03-07 00:08:23 +0000 | [diff] [blame] | 11231 | if (ping_exclude_tEXt != MagickFalse) |
| 11232 | text[0].compression=PNG_TEXT_COMPRESSION_zTXt; |
| 11233 | |
| 11234 | else if (ping_exclude_zTXt != MagickFalse) |
| 11235 | text[0].compression=PNG_TEXT_COMPRESSION_NONE; |
| 11236 | |
| 11237 | else |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 11238 | { |
glennrp | c70af4a | 2011-03-07 00:08:23 +0000 | [diff] [blame] | 11239 | text[0].compression=image_info->compression == NoCompression || |
| 11240 | (image_info->compression == UndefinedCompression && |
| 11241 | text[0].text_length < 128) ? PNG_TEXT_COMPRESSION_NONE : |
| 11242 | PNG_TEXT_COMPRESSION_zTXt ; |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 11243 | } |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 11244 | |
glennrp | c70af4a | 2011-03-07 00:08:23 +0000 | [diff] [blame] | 11245 | if (logging != MagickFalse) |
| 11246 | { |
| 11247 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 11248 | " Setting up text chunk"); |
| 11249 | |
| 11250 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | cbc9215 | 2013-02-04 15:46:22 +0000 | [diff] [blame] | 11251 | " keyword: '%s'",text[0].key); |
glennrp | c70af4a | 2011-03-07 00:08:23 +0000 | [diff] [blame] | 11252 | } |
| 11253 | |
| 11254 | png_set_text(ping,ping_info,text,1); |
| 11255 | png_free(ping,text); |
| 11256 | } |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 11257 | } |
| 11258 | property=GetNextImageProperty(image); |
| 11259 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11260 | } |
| 11261 | |
| 11262 | /* write any PNG-chunk-e profiles */ |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 11263 | (void) Magick_png_write_chunk_from_profile(image,"PNG-chunk-e",logging); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11264 | |
| 11265 | if (logging != MagickFalse) |
| 11266 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 11267 | " Writing PNG end info"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11268 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11269 | png_write_end(ping,ping_info); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11270 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11271 | if (mng_info->need_fram && (int) image->dispose == BackgroundDispose) |
| 11272 | { |
| 11273 | if (mng_info->page.x || mng_info->page.y || |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 11274 | (ping_width != mng_info->page.width) || |
| 11275 | (ping_height != mng_info->page.height)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11276 | { |
| 11277 | unsigned char |
| 11278 | chunk[32]; |
| 11279 | |
| 11280 | /* |
| 11281 | Write FRAM 4 with clipping boundaries followed by FRAM 1. |
| 11282 | */ |
| 11283 | (void) WriteBlobMSBULong(image,27L); /* data length=27 */ |
| 11284 | PNGType(chunk,mng_FRAM); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 11285 | LogPNGChunk(logging,mng_FRAM,27L); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11286 | chunk[4]=4; |
| 11287 | chunk[5]=0; /* frame name separator (no name) */ |
| 11288 | chunk[6]=1; /* flag for changing delay, for next frame only */ |
| 11289 | chunk[7]=0; /* flag for changing frame timeout */ |
| 11290 | chunk[8]=1; /* flag for changing frame clipping for next frame */ |
| 11291 | chunk[9]=0; /* flag for changing frame sync_id */ |
| 11292 | PNGLong(chunk+10,(png_uint_32) (0L)); /* temporary 0 delay */ |
| 11293 | chunk[14]=0; /* clipping boundaries delta type */ |
| 11294 | PNGLong(chunk+15,(png_uint_32) (mng_info->page.x)); /* left cb */ |
| 11295 | PNGLong(chunk+19, |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 11296 | (png_uint_32) (mng_info->page.x + ping_width)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11297 | PNGLong(chunk+23,(png_uint_32) (mng_info->page.y)); /* top cb */ |
| 11298 | PNGLong(chunk+27, |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 11299 | (png_uint_32) (mng_info->page.y + ping_height)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11300 | (void) WriteBlob(image,31,chunk); |
| 11301 | (void) WriteBlobMSBULong(image,crc32(0,chunk,31)); |
| 11302 | mng_info->old_framing_mode=4; |
| 11303 | mng_info->framing_mode=1; |
| 11304 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11305 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11306 | else |
| 11307 | mng_info->framing_mode=3; |
| 11308 | } |
| 11309 | if (mng_info->write_mng && !mng_info->need_fram && |
| 11310 | ((int) image->dispose == 3)) |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 11311 | png_error(ping, "Cannot convert GIF with disposal method 3 to MNG-LC"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11312 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11313 | /* |
| 11314 | Free PNG resources. |
| 11315 | */ |
glennrp | 5af765f | 2010-03-30 11:12:18 +0000 | [diff] [blame] | 11316 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11317 | png_destroy_write_struct(&ping,&ping_info); |
| 11318 | |
cristy | 0997332 | 2013-06-30 21:06:30 +0000 | [diff] [blame] | 11319 | pixel_info=RelinquishVirtualMemory(pixel_info); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11320 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11321 | if (ping_have_blob != MagickFalse) |
| 11322 | (void) CloseBlob(image); |
| 11323 | |
| 11324 | image_info=DestroyImageInfo(image_info); |
| 11325 | image=DestroyImage(image); |
| 11326 | |
glennrp | b9cfe27 | 2010-12-21 15:08:06 +0000 | [diff] [blame] | 11327 | /* Store bit depth actually written */ |
| 11328 | s[0]=(char) ping_bit_depth; |
| 11329 | s[1]='\0'; |
| 11330 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11331 | (void) SetImageProperty(IMimage,"png:bit-depth-written",s,exception); |
glennrp | b9cfe27 | 2010-12-21 15:08:06 +0000 | [diff] [blame] | 11332 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11333 | if (logging != MagickFalse) |
| 11334 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 11335 | " exit WriteOnePNGImage()"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11336 | |
glennrp | 868fff3 | 2014-03-16 22:09:06 +0000 | [diff] [blame] | 11337 | #ifdef IMPNG_SETJMP_NOT_THREAD_SAFE |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 11338 | UnlockSemaphoreInfo(ping_semaphore); |
| 11339 | #endif |
| 11340 | |
| 11341 | /* } for navigation to beginning of SETJMP-protected block. Revert to |
| 11342 | * Throwing an Exception when an error occurs. |
| 11343 | */ |
| 11344 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11345 | return(MagickTrue); |
| 11346 | /* End write one PNG image */ |
glennrp | edaa038 | 2012-04-12 14:16:21 +0000 | [diff] [blame] | 11347 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11348 | } |
| 11349 | |
| 11350 | /* |
| 11351 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 11352 | % % |
| 11353 | % % |
| 11354 | % % |
| 11355 | % W r i t e P N G I m a g e % |
| 11356 | % % |
| 11357 | % % |
| 11358 | % % |
| 11359 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 11360 | % |
| 11361 | % WritePNGImage() writes a Portable Network Graphics (PNG) or |
| 11362 | % Multiple-image Network Graphics (MNG) image file. |
| 11363 | % |
| 11364 | % MNG support written by Glenn Randers-Pehrson, glennrp@image... |
| 11365 | % |
| 11366 | % The format of the WritePNGImage method is: |
| 11367 | % |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11368 | % MagickBooleanType WritePNGImage(const ImageInfo *image_info, |
| 11369 | % Image *image,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11370 | % |
| 11371 | % A description of each parameter follows: |
| 11372 | % |
| 11373 | % o image_info: the image info. |
| 11374 | % |
| 11375 | % o image: The image. |
| 11376 | % |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11377 | % o exception: return any errors or warnings in this structure. |
| 11378 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11379 | % Returns MagickTrue on success, MagickFalse on failure. |
| 11380 | % |
| 11381 | % Communicating with the PNG encoder: |
| 11382 | % |
| 11383 | % While the datastream written is always in PNG format and normally would |
| 11384 | % be given the "png" file extension, this method also writes the following |
cristy | 5d6fc9c | 2011-12-27 03:10:42 +0000 | [diff] [blame] | 11385 | % pseudo-formats which are subsets of png: |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11386 | % |
glennrp | 5a39f37 | 2011-02-25 04:52:16 +0000 | [diff] [blame] | 11387 | % o PNG8: An 8-bit indexed PNG datastream is written. If the image has |
| 11388 | % a depth greater than 8, the depth is reduced. If transparency |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11389 | % is present, the tRNS chunk must only have values 0 and 255 |
| 11390 | % (i.e., transparency is binary: fully opaque or fully |
glennrp | 5a39f37 | 2011-02-25 04:52:16 +0000 | [diff] [blame] | 11391 | % transparent). If other values are present they will be |
| 11392 | % 50%-thresholded to binary transparency. If more than 256 |
glennrp | e9637cb | 2011-03-24 16:34:37 +0000 | [diff] [blame] | 11393 | % colors are present, they will be quantized to the 4-4-4-1, |
glennrp | 130fc45 | 2011-08-20 03:43:18 +0000 | [diff] [blame] | 11394 | % 3-3-3-1, or 3-3-2-1 palette. The underlying RGB color |
| 11395 | % of any resulting fully-transparent pixels is changed to |
| 11396 | % the image's background color. |
glennrp | e9637cb | 2011-03-24 16:34:37 +0000 | [diff] [blame] | 11397 | % |
| 11398 | % If you want better quantization or dithering of the colors |
| 11399 | % or alpha than that, you need to do it before calling the |
glennrp | 5a39f37 | 2011-02-25 04:52:16 +0000 | [diff] [blame] | 11400 | % PNG encoder. The pixels contain 8-bit indices even if |
| 11401 | % they could be represented with 1, 2, or 4 bits. Grayscale |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11402 | % images will be written as indexed PNG files even though the |
glennrp | 5a39f37 | 2011-02-25 04:52:16 +0000 | [diff] [blame] | 11403 | % PNG grayscale type might be slightly more efficient. Please |
| 11404 | % note that writing to the PNG8 format may result in loss |
| 11405 | % of color and alpha data. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11406 | % |
| 11407 | % o PNG24: An 8-bit per sample RGB PNG datastream is written. The tRNS |
| 11408 | % chunk can be present to convey binary transparency by naming |
glennrp | 5a39f37 | 2011-02-25 04:52:16 +0000 | [diff] [blame] | 11409 | % one of the colors as transparent. The only loss incurred |
| 11410 | % is reduction of sample depth to 8. If the image has more |
| 11411 | % than one transparent color, has semitransparent pixels, or |
| 11412 | % has an opaque pixel with the same RGB components as the |
| 11413 | % transparent color, an image is not written. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11414 | % |
| 11415 | % o PNG32: An 8-bit per sample RGBA PNG is written. Partial |
| 11416 | % transparency is permitted, i.e., the alpha sample for |
| 11417 | % each pixel can have any value from 0 to 255. The alpha |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11418 | % channel is present even if the image is fully opaque. |
glennrp | 5a39f37 | 2011-02-25 04:52:16 +0000 | [diff] [blame] | 11419 | % The only loss in data is the reduction of the sample depth |
| 11420 | % to 8. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11421 | % |
glennrp | fd164d2 | 2013-01-26 21:10:22 +0000 | [diff] [blame] | 11422 | % o PNG48: A 16-bit per sample RGB PNG datastream is written. The tRNS |
| 11423 | % chunk can be present to convey binary transparency by naming |
| 11424 | % one of the colors as transparent. If the image has more |
| 11425 | % than one transparent color, has semitransparent pixels, or |
| 11426 | % has an opaque pixel with the same RGB components as the |
| 11427 | % transparent color, an image is not written. |
| 11428 | % |
| 11429 | % o PNG64: A 16-bit per sample RGBA PNG is written. Partial |
| 11430 | % transparency is permitted, i.e., the alpha sample for |
| 11431 | % each pixel can have any value from 0 to 65535. The alpha |
| 11432 | % channel is present even if the image is fully opaque. |
| 11433 | % |
glennrp | 5830fbc | 2013-01-27 06:11:45 +0000 | [diff] [blame] | 11434 | % o PNG00: A PNG that inherits its colortype and bit-depth from the input |
| 11435 | % image, if the input was a PNG, is written. If these values |
glennrp | c1e0770 | 2015-05-13 02:12:57 +0000 | [diff] [blame] | 11436 | % cannot be found, or if the pixels have been changed in a way |
| 11437 | % that makes this impossible, then "PNG00" falls back to the |
| 11438 | % regular "PNG" format. |
glennrp | 5830fbc | 2013-01-27 06:11:45 +0000 | [diff] [blame] | 11439 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11440 | % o -define: For more precise control of the PNG output, you can use the |
| 11441 | % Image options "png:bit-depth" and "png:color-type". These |
| 11442 | % can be set from the commandline with "-define" and also |
glennrp | bb8a733 | 2010-11-13 15:17:35 +0000 | [diff] [blame] | 11443 | % from the application programming interfaces. The options |
| 11444 | % are case-independent and are converted to lowercase before |
| 11445 | % being passed to this encoder. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11446 | % |
| 11447 | % png:color-type can be 0, 2, 3, 4, or 6. |
| 11448 | % |
| 11449 | % When png:color-type is 0 (Grayscale), png:bit-depth can |
| 11450 | % be 1, 2, 4, 8, or 16. |
| 11451 | % |
| 11452 | % When png:color-type is 2 (RGB), png:bit-depth can |
| 11453 | % be 8 or 16. |
| 11454 | % |
| 11455 | % When png:color-type is 3 (Indexed), png:bit-depth can |
| 11456 | % be 1, 2, 4, or 8. This refers to the number of bits |
| 11457 | % used to store the index. The color samples always have |
| 11458 | % bit-depth 8 in indexed PNG files. |
| 11459 | % |
| 11460 | % When png:color-type is 4 (Gray-Matte) or 6 (RGB-Matte), |
| 11461 | % png:bit-depth can be 8 or 16. |
| 11462 | % |
glennrp | fd164d2 | 2013-01-26 21:10:22 +0000 | [diff] [blame] | 11463 | % If the image cannot be written without loss with the |
| 11464 | % requested bit-depth and color-type, a PNG file will not |
| 11465 | % be written, a warning will be issued, and the encoder will |
| 11466 | % return MagickFalse. |
glennrp | 5a39f37 | 2011-02-25 04:52:16 +0000 | [diff] [blame] | 11467 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11468 | % Since image encoders should not be responsible for the "heavy lifting", |
| 11469 | % the user should make sure that ImageMagick has already reduced the |
| 11470 | % image depth and number of colors and limit transparency to binary |
glennrp | 5a39f37 | 2011-02-25 04:52:16 +0000 | [diff] [blame] | 11471 | % transparency prior to attempting to write the image with depth, color, |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11472 | % or transparency limitations. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11473 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11474 | % Note that another definition, "png:bit-depth-written" exists, but it |
| 11475 | % is not intended for external use. It is only used internally by the |
| 11476 | % PNG encoder to inform the JNG encoder of the depth of the alpha channel. |
| 11477 | % |
| 11478 | % It is possible to request that the PNG encoder write previously-formatted |
| 11479 | % ancillary chunks in the output PNG file, using the "-profile" commandline |
| 11480 | % option as shown below or by setting the profile via a programming |
| 11481 | % interface: |
| 11482 | % |
| 11483 | % -profile PNG-chunk-x:<file> |
| 11484 | % |
| 11485 | % where x is a location flag and <file> is a file containing the chunk |
| 11486 | % name in the first 4 bytes, then a colon (":"), followed by the chunk data. |
glennrp | bb8a733 | 2010-11-13 15:17:35 +0000 | [diff] [blame] | 11487 | % This encoder will compute the chunk length and CRC, so those must not |
| 11488 | % be included in the file. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11489 | % |
| 11490 | % "x" can be "b" (before PLTE), "m" (middle, i.e., between PLTE and IDAT), |
| 11491 | % or "e" (end, i.e., after IDAT). If you want to write multiple chunks |
| 11492 | % of the same type, then add a short unique string after the "x" to prevent |
glennrp | bb8a733 | 2010-11-13 15:17:35 +0000 | [diff] [blame] | 11493 | % subsequent profiles from overwriting the preceding ones, e.g., |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11494 | % |
glennrp | bb8a733 | 2010-11-13 15:17:35 +0000 | [diff] [blame] | 11495 | % -profile PNG-chunk-b01:file01 -profile PNG-chunk-b02:file02 |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11496 | % |
glennrp | 3241bd0 | 2010-12-12 04:36:28 +0000 | [diff] [blame] | 11497 | % As of version 6.6.6 the following optimizations are always done: |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11498 | % |
glennrp | d6afd54 | 2010-11-19 01:53:05 +0000 | [diff] [blame] | 11499 | % o 32-bit depth is reduced to 16. |
| 11500 | % o 16-bit depth is reduced to 8 if all pixels contain samples whose |
| 11501 | % high byte and low byte are identical. |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11502 | % o Palette is sorted to remove unused entries and to put a |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 11503 | % transparent color first, if BUILD_PNG_PALETTE is defined. |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11504 | % o Opaque matte channel is removed when writing an indexed PNG. |
glennrp | d6afd54 | 2010-11-19 01:53:05 +0000 | [diff] [blame] | 11505 | % o Grayscale images are reduced to 1, 2, or 4 bit depth if |
| 11506 | % this can be done without loss and a larger bit depth N was not |
cristy | 5d6fc9c | 2011-12-27 03:10:42 +0000 | [diff] [blame] | 11507 | % requested via the "-define png:bit-depth=N" option. |
glennrp | d6afd54 | 2010-11-19 01:53:05 +0000 | [diff] [blame] | 11508 | % o If matte channel is present but only one transparent color is |
| 11509 | % present, RGB+tRNS is written instead of RGBA |
| 11510 | % o Opaque matte channel is removed (or added, if color-type 4 or 6 |
| 11511 | % was requested when converting an opaque image). |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11512 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11513 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 11514 | */ |
| 11515 | static MagickBooleanType WritePNGImage(const ImageInfo *image_info, |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11516 | Image *image,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11517 | { |
| 11518 | MagickBooleanType |
glennrp | 21f0e62 | 2011-01-07 16:20:57 +0000 | [diff] [blame] | 11519 | excluding, |
| 11520 | logging, |
| 11521 | have_mng_structure, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11522 | status; |
| 11523 | |
| 11524 | MngInfo |
| 11525 | *mng_info; |
| 11526 | |
| 11527 | const char |
| 11528 | *value; |
| 11529 | |
| 11530 | int |
glennrp | 5c7cf4e | 2010-12-24 00:30:00 +0000 | [diff] [blame] | 11531 | source; |
| 11532 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11533 | /* |
| 11534 | Open image file. |
| 11535 | */ |
| 11536 | assert(image_info != (const ImageInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 11537 | assert(image_info->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11538 | assert(image != (Image *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 11539 | assert(image->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11540 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 11541 | logging=LogMagickEvent(CoderEvent,GetMagickModule(),"Enter WritePNGImage()"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11542 | /* |
| 11543 | Allocate a MngInfo structure. |
| 11544 | */ |
| 11545 | have_mng_structure=MagickFalse; |
cristy | 73bd4a5 | 2010-10-05 11:24:23 +0000 | [diff] [blame] | 11546 | mng_info=(MngInfo *) AcquireMagickMemory(sizeof(MngInfo)); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11547 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11548 | if (mng_info == (MngInfo *) NULL) |
| 11549 | ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11550 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11551 | /* |
| 11552 | Initialize members of the MngInfo structure. |
| 11553 | */ |
| 11554 | (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); |
| 11555 | mng_info->image=image; |
glennrp | a521b2f | 2010-10-29 04:11:03 +0000 | [diff] [blame] | 11556 | mng_info->equal_backgrounds=MagickTrue; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11557 | have_mng_structure=MagickTrue; |
| 11558 | |
| 11559 | /* See if user has requested a specific PNG subformat */ |
| 11560 | |
| 11561 | mng_info->write_png8=LocaleCompare(image_info->magick,"PNG8") == 0; |
| 11562 | mng_info->write_png24=LocaleCompare(image_info->magick,"PNG24") == 0; |
| 11563 | mng_info->write_png32=LocaleCompare(image_info->magick,"PNG32") == 0; |
glennrp | fd164d2 | 2013-01-26 21:10:22 +0000 | [diff] [blame] | 11564 | mng_info->write_png48=LocaleCompare(image_info->magick,"PNG48") == 0; |
| 11565 | mng_info->write_png64=LocaleCompare(image_info->magick,"PNG64") == 0; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11566 | |
cristy | 092ec8d | 2013-04-26 13:46:22 +0000 | [diff] [blame] | 11567 | value=GetImageOption(image_info,"png:format"); |
glennrp | b381a26 | 2012-02-11 17:49:49 +0000 | [diff] [blame] | 11568 | |
glennrp | 5a4989d | 2014-04-23 00:34:09 +0000 | [diff] [blame] | 11569 | if (value != (char *) NULL || LocaleCompare(image_info->magick,"PNG00") == 0) |
glennrp | b381a26 | 2012-02-11 17:49:49 +0000 | [diff] [blame] | 11570 | { |
glennrp | f70c4d2 | 2013-03-19 15:26:48 +0000 | [diff] [blame] | 11571 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 11572 | " Format=%s",value); |
| 11573 | |
glennrp | fd164d2 | 2013-01-26 21:10:22 +0000 | [diff] [blame] | 11574 | mng_info->write_png8 = MagickFalse; |
| 11575 | mng_info->write_png24 = MagickFalse; |
| 11576 | mng_info->write_png32 = MagickFalse; |
| 11577 | mng_info->write_png48 = MagickFalse; |
| 11578 | mng_info->write_png64 = MagickFalse; |
| 11579 | |
glennrp | b381a26 | 2012-02-11 17:49:49 +0000 | [diff] [blame] | 11580 | if (LocaleCompare(value,"png8") == 0) |
glennrp | b381a26 | 2012-02-11 17:49:49 +0000 | [diff] [blame] | 11581 | mng_info->write_png8 = MagickTrue; |
glennrp | b381a26 | 2012-02-11 17:49:49 +0000 | [diff] [blame] | 11582 | |
| 11583 | else if (LocaleCompare(value,"png24") == 0) |
glennrp | b381a26 | 2012-02-11 17:49:49 +0000 | [diff] [blame] | 11584 | mng_info->write_png24 = MagickTrue; |
glennrp | b381a26 | 2012-02-11 17:49:49 +0000 | [diff] [blame] | 11585 | |
| 11586 | else if (LocaleCompare(value,"png32") == 0) |
glennrp | b381a26 | 2012-02-11 17:49:49 +0000 | [diff] [blame] | 11587 | mng_info->write_png32 = MagickTrue; |
glennrp | fd164d2 | 2013-01-26 21:10:22 +0000 | [diff] [blame] | 11588 | |
| 11589 | else if (LocaleCompare(value,"png48") == 0) |
| 11590 | mng_info->write_png48 = MagickTrue; |
| 11591 | |
| 11592 | else if (LocaleCompare(value,"png64") == 0) |
| 11593 | mng_info->write_png64 = MagickTrue; |
glennrp | 5830fbc | 2013-01-27 06:11:45 +0000 | [diff] [blame] | 11594 | |
glennrp | 5a4989d | 2014-04-23 00:34:09 +0000 | [diff] [blame] | 11595 | else if ((LocaleCompare(value,"png00") == 0) || |
| 11596 | LocaleCompare(image_info->magick,"PNG00") == 0) |
glennrp | 5830fbc | 2013-01-27 06:11:45 +0000 | [diff] [blame] | 11597 | { |
glennrp | 3398b5b | 2013-05-03 23:10:31 +0000 | [diff] [blame] | 11598 | /* Retrieve png:IHDR.bit-depth-orig and png:IHDR.color-type-orig. */ |
| 11599 | value=GetImageProperty(image,"png:IHDR.bit-depth-orig",exception); |
glennrp | 6647b97 | 2015-01-12 04:39:14 +0000 | [diff] [blame] | 11600 | |
glennrp | f70c4d2 | 2013-03-19 15:26:48 +0000 | [diff] [blame] | 11601 | if (value != (char *) NULL) |
| 11602 | { |
| 11603 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 11604 | " png00 inherited bit depth=%s",value); |
glennrp | 6647b97 | 2015-01-12 04:39:14 +0000 | [diff] [blame] | 11605 | |
glennrp | f70c4d2 | 2013-03-19 15:26:48 +0000 | [diff] [blame] | 11606 | if (LocaleCompare(value,"1") == 0) |
| 11607 | mng_info->write_png_depth = 1; |
glennrp | 6647b97 | 2015-01-12 04:39:14 +0000 | [diff] [blame] | 11608 | |
glennrp | 5a4989d | 2014-04-23 00:34:09 +0000 | [diff] [blame] | 11609 | else if (LocaleCompare(value,"2") == 0) |
glennrp | f70c4d2 | 2013-03-19 15:26:48 +0000 | [diff] [blame] | 11610 | mng_info->write_png_depth = 2; |
glennrp | 6647b97 | 2015-01-12 04:39:14 +0000 | [diff] [blame] | 11611 | |
glennrp | 5a4989d | 2014-04-23 00:34:09 +0000 | [diff] [blame] | 11612 | else if (LocaleCompare(value,"4") == 0) |
glennrp | f70c4d2 | 2013-03-19 15:26:48 +0000 | [diff] [blame] | 11613 | mng_info->write_png_depth = 4; |
glennrp | 6647b97 | 2015-01-12 04:39:14 +0000 | [diff] [blame] | 11614 | |
glennrp | f70c4d2 | 2013-03-19 15:26:48 +0000 | [diff] [blame] | 11615 | else if (LocaleCompare(value,"8") == 0) |
| 11616 | mng_info->write_png_depth = 8; |
glennrp | 6647b97 | 2015-01-12 04:39:14 +0000 | [diff] [blame] | 11617 | |
glennrp | f70c4d2 | 2013-03-19 15:26:48 +0000 | [diff] [blame] | 11618 | else if (LocaleCompare(value,"16") == 0) |
| 11619 | mng_info->write_png_depth = 16; |
| 11620 | } |
glennrp | 6647b97 | 2015-01-12 04:39:14 +0000 | [diff] [blame] | 11621 | |
glennrp | 3398b5b | 2013-05-03 23:10:31 +0000 | [diff] [blame] | 11622 | value=GetImageProperty(image,"png:IHDR.color-type-orig",exception); |
glennrp | 6647b97 | 2015-01-12 04:39:14 +0000 | [diff] [blame] | 11623 | |
glennrp | f70c4d2 | 2013-03-19 15:26:48 +0000 | [diff] [blame] | 11624 | if (value != (char *) NULL) |
| 11625 | { |
| 11626 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 11627 | " png00 inherited color type=%s",value); |
glennrp | 6647b97 | 2015-01-12 04:39:14 +0000 | [diff] [blame] | 11628 | |
glennrp | f70c4d2 | 2013-03-19 15:26:48 +0000 | [diff] [blame] | 11629 | if (LocaleCompare(value,"0") == 0) |
| 11630 | mng_info->write_png_colortype = 1; |
glennrp | 6647b97 | 2015-01-12 04:39:14 +0000 | [diff] [blame] | 11631 | |
glennrp | f70c4d2 | 2013-03-19 15:26:48 +0000 | [diff] [blame] | 11632 | else if (LocaleCompare(value,"2") == 0) |
| 11633 | mng_info->write_png_colortype = 3; |
glennrp | 6647b97 | 2015-01-12 04:39:14 +0000 | [diff] [blame] | 11634 | |
glennrp | f70c4d2 | 2013-03-19 15:26:48 +0000 | [diff] [blame] | 11635 | else if (LocaleCompare(value,"3") == 0) |
| 11636 | mng_info->write_png_colortype = 4; |
glennrp | 6647b97 | 2015-01-12 04:39:14 +0000 | [diff] [blame] | 11637 | |
glennrp | f70c4d2 | 2013-03-19 15:26:48 +0000 | [diff] [blame] | 11638 | else if (LocaleCompare(value,"4") == 0) |
| 11639 | mng_info->write_png_colortype = 5; |
glennrp | 6647b97 | 2015-01-12 04:39:14 +0000 | [diff] [blame] | 11640 | |
glennrp | f70c4d2 | 2013-03-19 15:26:48 +0000 | [diff] [blame] | 11641 | else if (LocaleCompare(value,"6") == 0) |
| 11642 | mng_info->write_png_colortype = 7; |
| 11643 | } |
glennrp | 5830fbc | 2013-01-27 06:11:45 +0000 | [diff] [blame] | 11644 | } |
| 11645 | } |
| 11646 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11647 | if (mng_info->write_png8) |
| 11648 | { |
glennrp | 9c1eb07 | 2010-06-06 22:19:15 +0000 | [diff] [blame] | 11649 | mng_info->write_png_colortype = /* 3 */ 4; |
| 11650 | mng_info->write_png_depth = 8; |
| 11651 | image->depth = 8; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11652 | } |
| 11653 | |
| 11654 | if (mng_info->write_png24) |
| 11655 | { |
glennrp | 9c1eb07 | 2010-06-06 22:19:15 +0000 | [diff] [blame] | 11656 | mng_info->write_png_colortype = /* 2 */ 3; |
| 11657 | mng_info->write_png_depth = 8; |
| 11658 | image->depth = 8; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11659 | |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 11660 | if (image->alpha_trait != UndefinedPixelTrait) |
cristy | def23e5 | 2015-01-22 11:52:01 +0000 | [diff] [blame] | 11661 | (void) SetImageType(image,TrueColorAlphaType,exception); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11662 | |
glennrp | 9c1eb07 | 2010-06-06 22:19:15 +0000 | [diff] [blame] | 11663 | else |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11664 | (void) SetImageType(image,TrueColorType,exception); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11665 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11666 | (void) SyncImage(image,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11667 | } |
| 11668 | |
| 11669 | if (mng_info->write_png32) |
| 11670 | { |
glennrp | 9c1eb07 | 2010-06-06 22:19:15 +0000 | [diff] [blame] | 11671 | mng_info->write_png_colortype = /* 6 */ 7; |
| 11672 | mng_info->write_png_depth = 8; |
| 11673 | image->depth = 8; |
dirk | 47da46d | 2014-04-24 18:48:54 +0000 | [diff] [blame] | 11674 | image->alpha_trait = BlendPixelTrait; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11675 | |
cristy | def23e5 | 2015-01-22 11:52:01 +0000 | [diff] [blame] | 11676 | (void) SetImageType(image,TrueColorAlphaType,exception); |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11677 | (void) SyncImage(image,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11678 | } |
| 11679 | |
glennrp | fd164d2 | 2013-01-26 21:10:22 +0000 | [diff] [blame] | 11680 | if (mng_info->write_png48) |
| 11681 | { |
| 11682 | mng_info->write_png_colortype = /* 2 */ 3; |
| 11683 | mng_info->write_png_depth = 16; |
| 11684 | image->depth = 16; |
| 11685 | |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 11686 | if (image->alpha_trait != UndefinedPixelTrait) |
cristy | def23e5 | 2015-01-22 11:52:01 +0000 | [diff] [blame] | 11687 | (void) SetImageType(image,TrueColorAlphaType,exception); |
glennrp | fd164d2 | 2013-01-26 21:10:22 +0000 | [diff] [blame] | 11688 | |
| 11689 | else |
glennrp | 4dda64f | 2013-01-26 21:20:24 +0000 | [diff] [blame] | 11690 | (void) SetImageType(image,TrueColorType,exception); |
glennrp | fd164d2 | 2013-01-26 21:10:22 +0000 | [diff] [blame] | 11691 | |
glennrp | 4dda64f | 2013-01-26 21:20:24 +0000 | [diff] [blame] | 11692 | (void) SyncImage(image,exception); |
glennrp | fd164d2 | 2013-01-26 21:10:22 +0000 | [diff] [blame] | 11693 | } |
| 11694 | |
| 11695 | if (mng_info->write_png64) |
| 11696 | { |
| 11697 | mng_info->write_png_colortype = /* 6 */ 7; |
| 11698 | mng_info->write_png_depth = 16; |
| 11699 | image->depth = 16; |
dirk | 47da46d | 2014-04-24 18:48:54 +0000 | [diff] [blame] | 11700 | image->alpha_trait = BlendPixelTrait; |
glennrp | fd164d2 | 2013-01-26 21:10:22 +0000 | [diff] [blame] | 11701 | |
cristy | def23e5 | 2015-01-22 11:52:01 +0000 | [diff] [blame] | 11702 | (void) SetImageType(image,TrueColorAlphaType,exception); |
glennrp | 4dda64f | 2013-01-26 21:20:24 +0000 | [diff] [blame] | 11703 | (void) SyncImage(image,exception); |
glennrp | fd164d2 | 2013-01-26 21:10:22 +0000 | [diff] [blame] | 11704 | } |
| 11705 | |
cristy | 092ec8d | 2013-04-26 13:46:22 +0000 | [diff] [blame] | 11706 | value=GetImageOption(image_info,"png:bit-depth"); |
glennrp | 8bb3a02 | 2010-12-13 20:40:04 +0000 | [diff] [blame] | 11707 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11708 | if (value != (char *) NULL) |
| 11709 | { |
| 11710 | if (LocaleCompare(value,"1") == 0) |
glennrp | 9c1eb07 | 2010-06-06 22:19:15 +0000 | [diff] [blame] | 11711 | mng_info->write_png_depth = 1; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11712 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11713 | else if (LocaleCompare(value,"2") == 0) |
glennrp | 9c1eb07 | 2010-06-06 22:19:15 +0000 | [diff] [blame] | 11714 | mng_info->write_png_depth = 2; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11715 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11716 | else if (LocaleCompare(value,"4") == 0) |
glennrp | 9c1eb07 | 2010-06-06 22:19:15 +0000 | [diff] [blame] | 11717 | mng_info->write_png_depth = 4; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11718 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11719 | else if (LocaleCompare(value,"8") == 0) |
glennrp | 9c1eb07 | 2010-06-06 22:19:15 +0000 | [diff] [blame] | 11720 | mng_info->write_png_depth = 8; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11721 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11722 | else if (LocaleCompare(value,"16") == 0) |
glennrp | 9c1eb07 | 2010-06-06 22:19:15 +0000 | [diff] [blame] | 11723 | mng_info->write_png_depth = 16; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11724 | |
glennrp | bb8a733 | 2010-11-13 15:17:35 +0000 | [diff] [blame] | 11725 | else |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11726 | (void) ThrowMagickException(exception, |
glennrp | bb8a733 | 2010-11-13 15:17:35 +0000 | [diff] [blame] | 11727 | GetMagickModule(),CoderWarning, |
| 11728 | "ignoring invalid defined png:bit-depth", |
| 11729 | "=%s",value); |
| 11730 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11731 | if (logging != MagickFalse) |
glennrp | 9c1eb07 | 2010-06-06 22:19:15 +0000 | [diff] [blame] | 11732 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | bb8a733 | 2010-11-13 15:17:35 +0000 | [diff] [blame] | 11733 | " png:bit-depth=%d was defined.\n",mng_info->write_png_depth); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11734 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11735 | |
cristy | 092ec8d | 2013-04-26 13:46:22 +0000 | [diff] [blame] | 11736 | value=GetImageOption(image_info,"png:color-type"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11737 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11738 | if (value != (char *) NULL) |
| 11739 | { |
| 11740 | /* We must store colortype+1 because 0 is a valid colortype */ |
| 11741 | if (LocaleCompare(value,"0") == 0) |
glennrp | 9c1eb07 | 2010-06-06 22:19:15 +0000 | [diff] [blame] | 11742 | mng_info->write_png_colortype = 1; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11743 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11744 | else if (LocaleCompare(value,"1") == 0) |
| 11745 | mng_info->write_png_colortype = 2; |
| 11746 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11747 | else if (LocaleCompare(value,"2") == 0) |
glennrp | 9c1eb07 | 2010-06-06 22:19:15 +0000 | [diff] [blame] | 11748 | mng_info->write_png_colortype = 3; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11749 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11750 | else if (LocaleCompare(value,"3") == 0) |
glennrp | 9c1eb07 | 2010-06-06 22:19:15 +0000 | [diff] [blame] | 11751 | mng_info->write_png_colortype = 4; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11752 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11753 | else if (LocaleCompare(value,"4") == 0) |
glennrp | 9c1eb07 | 2010-06-06 22:19:15 +0000 | [diff] [blame] | 11754 | mng_info->write_png_colortype = 5; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11755 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11756 | else if (LocaleCompare(value,"6") == 0) |
glennrp | 9c1eb07 | 2010-06-06 22:19:15 +0000 | [diff] [blame] | 11757 | mng_info->write_png_colortype = 7; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 11758 | |
glennrp | bb8a733 | 2010-11-13 15:17:35 +0000 | [diff] [blame] | 11759 | else |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11760 | (void) ThrowMagickException(exception, |
glennrp | bb8a733 | 2010-11-13 15:17:35 +0000 | [diff] [blame] | 11761 | GetMagickModule(),CoderWarning, |
| 11762 | "ignoring invalid defined png:color-type", |
| 11763 | "=%s",value); |
| 11764 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11765 | if (logging != MagickFalse) |
glennrp | 9c1eb07 | 2010-06-06 22:19:15 +0000 | [diff] [blame] | 11766 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | d6bf161 | 2010-12-17 17:28:54 +0000 | [diff] [blame] | 11767 | " png:color-type=%d was defined.\n",mng_info->write_png_colortype-1); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 11768 | } |
| 11769 | |
glennrp | 0e8ea19 | 2010-12-24 18:00:33 +0000 | [diff] [blame] | 11770 | /* Check for chunks to be excluded: |
| 11771 | * |
glennrp | 0dff56c | 2011-01-29 19:10:02 +0000 | [diff] [blame] | 11772 | * The default is to not exclude any known chunks except for any |
glennrp | 0e8ea19 | 2010-12-24 18:00:33 +0000 | [diff] [blame] | 11773 | * listed in the "unused_chunks" array, above. |
| 11774 | * |
cristy | 5d6fc9c | 2011-12-27 03:10:42 +0000 | [diff] [blame] | 11775 | * Chunks can be listed for exclusion via a "png:exclude-chunk" |
glennrp | 0e8ea19 | 2010-12-24 18:00:33 +0000 | [diff] [blame] | 11776 | * define (in the image properties or in the image artifacts) |
| 11777 | * or via a mng_info member. For convenience, in addition |
| 11778 | * to or instead of a comma-separated list of chunks, the |
| 11779 | * "exclude-chunk" string can be simply "all" or "none". |
| 11780 | * |
| 11781 | * The exclude-chunk define takes priority over the mng_info. |
| 11782 | * |
cristy | 5d6fc9c | 2011-12-27 03:10:42 +0000 | [diff] [blame] | 11783 | * A "png:include-chunk" define takes priority over both the |
| 11784 | * mng_info and the "png:exclude-chunk" define. Like the |
glennrp | 0e8ea19 | 2010-12-24 18:00:33 +0000 | [diff] [blame] | 11785 | * "exclude-chunk" string, it can define "all" or "none" as |
glennrp | 0dff56c | 2011-01-29 19:10:02 +0000 | [diff] [blame] | 11786 | * well as a comma-separated list. Chunks that are unknown to |
| 11787 | * ImageMagick are always excluded, regardless of their "copy-safe" |
| 11788 | * status according to the PNG specification, and even if they |
glennrp | aa192b1 | 2012-01-17 21:35:21 +0000 | [diff] [blame] | 11789 | * appear in the "include-chunk" list. Such defines appearing among |
| 11790 | * the image options take priority over those found among the image |
| 11791 | * artifacts. |
glennrp | 0e8ea19 | 2010-12-24 18:00:33 +0000 | [diff] [blame] | 11792 | * |
| 11793 | * Finally, all chunks listed in the "unused_chunks" array are |
| 11794 | * automatically excluded, regardless of the other instructions |
| 11795 | * or lack thereof. |
| 11796 | * |
| 11797 | * if you exclude sRGB but not gAMA (recommended), then sRGB chunk |
| 11798 | * will not be written and the gAMA chunk will only be written if it |
| 11799 | * is not between .45 and .46, or approximately (1.0/2.2). |
| 11800 | * |
| 11801 | * If you exclude tRNS and the image has transparency, the colortype |
| 11802 | * is forced to be 4 or 6 (GRAY_ALPHA or RGB_ALPHA). |
| 11803 | * |
| 11804 | * The -strip option causes StripImage() to set the png:include-chunk |
glennrp | 104f206 | 2011-08-20 05:08:53 +0000 | [diff] [blame] | 11805 | * artifact to "none,trns,gama". |
glennrp | 0e8ea19 | 2010-12-24 18:00:33 +0000 | [diff] [blame] | 11806 | */ |
| 11807 | |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 11808 | mng_info->ping_exclude_bKGD=MagickFalse; |
| 11809 | mng_info->ping_exclude_cHRM=MagickFalse; |
glennrp | a0ed009 | 2011-04-18 16:36:29 +0000 | [diff] [blame] | 11810 | mng_info->ping_exclude_date=MagickFalse; |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 11811 | mng_info->ping_exclude_EXIF=MagickFalse; /* hex-encoded EXIF in zTXt */ |
| 11812 | mng_info->ping_exclude_gAMA=MagickFalse; |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 11813 | mng_info->ping_exclude_iCCP=MagickFalse; |
| 11814 | /* mng_info->ping_exclude_iTXt=MagickFalse; */ |
| 11815 | mng_info->ping_exclude_oFFs=MagickFalse; |
| 11816 | mng_info->ping_exclude_pHYs=MagickFalse; |
| 11817 | mng_info->ping_exclude_sRGB=MagickFalse; |
| 11818 | mng_info->ping_exclude_tEXt=MagickFalse; |
dirk | fd6fd07 | 2014-10-24 21:10:08 +0000 | [diff] [blame] | 11819 | mng_info->ping_exclude_tIME=MagickFalse; |
glennrp | a1e3b7b | 2010-12-24 16:37:33 +0000 | [diff] [blame] | 11820 | mng_info->ping_exclude_tRNS=MagickFalse; |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 11821 | mng_info->ping_exclude_vpAg=MagickFalse; |
| 11822 | mng_info->ping_exclude_zCCP=MagickFalse; /* hex-encoded iCCP in zTXt */ |
| 11823 | mng_info->ping_exclude_zTXt=MagickFalse; |
| 11824 | |
glennrp | 8d3d6e5 | 2011-04-19 04:39:51 +0000 | [diff] [blame] | 11825 | mng_info->ping_preserve_colormap=MagickFalse; |
| 11826 | |
cristy | 092ec8d | 2013-04-26 13:46:22 +0000 | [diff] [blame] | 11827 | value=GetImageOption(image_info,"png:preserve-colormap"); |
glennrp | 8d3d6e5 | 2011-04-19 04:39:51 +0000 | [diff] [blame] | 11828 | if (value == NULL) |
cristy | 8b206ba | 2013-04-05 01:11:15 +0000 | [diff] [blame] | 11829 | value=GetImageArtifact(image,"png:preserve-colormap"); |
glennrp | 8d3d6e5 | 2011-04-19 04:39:51 +0000 | [diff] [blame] | 11830 | if (value != NULL) |
| 11831 | mng_info->ping_preserve_colormap=MagickTrue; |
| 11832 | |
glennrp | ecab7d7 | 2013-05-14 22:50:32 +0000 | [diff] [blame] | 11833 | mng_info->ping_preserve_iCCP=MagickFalse; |
| 11834 | |
| 11835 | value=GetImageOption(image_info,"png:preserve-iCCP"); |
| 11836 | if (value == NULL) |
| 11837 | value=GetImageArtifact(image,"png:preserve-iCCP"); |
| 11838 | if (value != NULL) |
| 11839 | mng_info->ping_preserve_iCCP=MagickTrue; |
| 11840 | |
| 11841 | /* These compression-level, compression-strategy, and compression-filter |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 11842 | * defines take precedence over values from the -quality option. |
| 11843 | */ |
cristy | 092ec8d | 2013-04-26 13:46:22 +0000 | [diff] [blame] | 11844 | value=GetImageOption(image_info,"png:compression-level"); |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 11845 | if (value == NULL) |
cristy | 8b206ba | 2013-04-05 01:11:15 +0000 | [diff] [blame] | 11846 | value=GetImageArtifact(image,"png:compression-level"); |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 11847 | if (value != NULL) |
| 11848 | { |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 11849 | /* We have to add 1 to everything because 0 is a valid input, |
| 11850 | * and we want to use 0 (the default) to mean undefined. |
| 11851 | */ |
| 11852 | if (LocaleCompare(value,"0") == 0) |
| 11853 | mng_info->write_png_compression_level = 1; |
| 11854 | |
glennrp | 0ffb95c | 2012-01-30 21:16:22 +0000 | [diff] [blame] | 11855 | else if (LocaleCompare(value,"1") == 0) |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 11856 | mng_info->write_png_compression_level = 2; |
| 11857 | |
| 11858 | else if (LocaleCompare(value,"2") == 0) |
| 11859 | mng_info->write_png_compression_level = 3; |
| 11860 | |
| 11861 | else if (LocaleCompare(value,"3") == 0) |
| 11862 | mng_info->write_png_compression_level = 4; |
| 11863 | |
| 11864 | else if (LocaleCompare(value,"4") == 0) |
| 11865 | mng_info->write_png_compression_level = 5; |
| 11866 | |
| 11867 | else if (LocaleCompare(value,"5") == 0) |
| 11868 | mng_info->write_png_compression_level = 6; |
| 11869 | |
| 11870 | else if (LocaleCompare(value,"6") == 0) |
| 11871 | mng_info->write_png_compression_level = 7; |
| 11872 | |
| 11873 | else if (LocaleCompare(value,"7") == 0) |
| 11874 | mng_info->write_png_compression_level = 8; |
| 11875 | |
| 11876 | else if (LocaleCompare(value,"8") == 0) |
| 11877 | mng_info->write_png_compression_level = 9; |
| 11878 | |
| 11879 | else if (LocaleCompare(value,"9") == 0) |
| 11880 | mng_info->write_png_compression_level = 10; |
| 11881 | |
| 11882 | else |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11883 | (void) ThrowMagickException(exception, |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 11884 | GetMagickModule(),CoderWarning, |
| 11885 | "ignoring invalid defined png:compression-level", |
| 11886 | "=%s",value); |
| 11887 | } |
| 11888 | |
cristy | 092ec8d | 2013-04-26 13:46:22 +0000 | [diff] [blame] | 11889 | value=GetImageOption(image_info,"png:compression-strategy"); |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 11890 | if (value == NULL) |
cristy | 8b206ba | 2013-04-05 01:11:15 +0000 | [diff] [blame] | 11891 | value=GetImageArtifact(image,"png:compression-strategy"); |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 11892 | if (value != NULL) |
| 11893 | { |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 11894 | if (LocaleCompare(value,"0") == 0) |
| 11895 | mng_info->write_png_compression_strategy = Z_DEFAULT_STRATEGY+1; |
| 11896 | |
| 11897 | else if (LocaleCompare(value,"1") == 0) |
| 11898 | mng_info->write_png_compression_strategy = Z_FILTERED+1; |
| 11899 | |
| 11900 | else if (LocaleCompare(value,"2") == 0) |
| 11901 | mng_info->write_png_compression_strategy = Z_HUFFMAN_ONLY+1; |
| 11902 | |
| 11903 | else if (LocaleCompare(value,"3") == 0) |
glennrp | 98c07ad | 2011-07-01 02:52:59 +0000 | [diff] [blame] | 11904 | #ifdef Z_RLE /* Z_RLE was added to zlib-1.2.0 */ |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 11905 | mng_info->write_png_compression_strategy = Z_RLE+1; |
glennrp | 98c07ad | 2011-07-01 02:52:59 +0000 | [diff] [blame] | 11906 | #else |
| 11907 | mng_info->write_png_compression_strategy = Z_DEFAULT_STRATEGY+1; |
| 11908 | #endif |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 11909 | |
| 11910 | else if (LocaleCompare(value,"4") == 0) |
glennrp | 98c07ad | 2011-07-01 02:52:59 +0000 | [diff] [blame] | 11911 | #ifdef Z_FIXED /* Z_FIXED was added to zlib-1.2.2.2 */ |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 11912 | mng_info->write_png_compression_strategy = Z_FIXED+1; |
glennrp | 98c07ad | 2011-07-01 02:52:59 +0000 | [diff] [blame] | 11913 | #else |
| 11914 | mng_info->write_png_compression_strategy = Z_DEFAULT_STRATEGY+1; |
| 11915 | #endif |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 11916 | |
| 11917 | else |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11918 | (void) ThrowMagickException(exception, |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 11919 | GetMagickModule(),CoderWarning, |
| 11920 | "ignoring invalid defined png:compression-strategy", |
| 11921 | "=%s",value); |
| 11922 | } |
| 11923 | |
cristy | 092ec8d | 2013-04-26 13:46:22 +0000 | [diff] [blame] | 11924 | value=GetImageOption(image_info,"png:compression-filter"); |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 11925 | if (value == NULL) |
cristy | 8b206ba | 2013-04-05 01:11:15 +0000 | [diff] [blame] | 11926 | value=GetImageArtifact(image,"png:compression-filter"); |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 11927 | if (value != NULL) |
| 11928 | { |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 11929 | /* To do: combinations of filters allowed by libpng |
| 11930 | * masks 0x08 through 0xf8 |
| 11931 | * |
| 11932 | * Implement this as a comma-separated list of 0,1,2,3,4,5 |
| 11933 | * where 5 is a special case meaning PNG_ALL_FILTERS. |
| 11934 | */ |
| 11935 | |
| 11936 | if (LocaleCompare(value,"0") == 0) |
| 11937 | mng_info->write_png_compression_filter = 1; |
| 11938 | |
cristy | b19b812 | 2012-10-22 11:03:30 +0000 | [diff] [blame] | 11939 | else if (LocaleCompare(value,"1") == 0) |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 11940 | mng_info->write_png_compression_filter = 2; |
| 11941 | |
| 11942 | else if (LocaleCompare(value,"2") == 0) |
| 11943 | mng_info->write_png_compression_filter = 3; |
| 11944 | |
| 11945 | else if (LocaleCompare(value,"3") == 0) |
| 11946 | mng_info->write_png_compression_filter = 4; |
| 11947 | |
| 11948 | else if (LocaleCompare(value,"4") == 0) |
| 11949 | mng_info->write_png_compression_filter = 5; |
| 11950 | |
| 11951 | else if (LocaleCompare(value,"5") == 0) |
| 11952 | mng_info->write_png_compression_filter = 6; |
| 11953 | |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 11954 | else |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 11955 | (void) ThrowMagickException(exception, |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 11956 | GetMagickModule(),CoderWarning, |
| 11957 | "ignoring invalid defined png:compression-filter", |
| 11958 | "=%s",value); |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 11959 | } |
| 11960 | |
| 11961 | for (source=0; source<8; source++) |
| 11962 | { |
| 11963 | value = NULL; |
| 11964 | |
glennrp | 2dd1906 | 2014-07-28 00:22:24 +0000 | [diff] [blame] | 11965 | if (source == 0) |
| 11966 | value=GetImageOption(image_info,"png:exclude-chunks"); |
| 11967 | |
| 11968 | if (source == 1) |
| 11969 | value=GetImageArtifact(image,"png:exclude-chunks"); |
| 11970 | |
| 11971 | if (source == 2) |
| 11972 | value=GetImageOption(image_info,"png:exclude-chunk"); |
| 11973 | |
| 11974 | if (source == 3) |
| 11975 | value=GetImageArtifact(image,"png:exclude-chunk"); |
| 11976 | |
| 11977 | if (source == 4) |
| 11978 | value=GetImageOption(image_info,"png:include-chunks"); |
| 11979 | |
| 11980 | if (source == 5) |
| 11981 | value=GetImageArtifact(image,"png:include-chunks"); |
| 11982 | |
| 11983 | if (source == 6) |
| 11984 | value=GetImageOption(image_info,"png:include-chunk"); |
| 11985 | |
| 11986 | if (source == 7) |
| 11987 | value=GetImageArtifact(image,"png:include-chunk"); |
glennrp | 1868258 | 2011-06-30 18:11:47 +0000 | [diff] [blame] | 11988 | |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 11989 | if (value == NULL) |
| 11990 | continue; |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 11991 | |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 11992 | if (source < 4) |
| 11993 | excluding = MagickTrue; |
glennrp | 5c7cf4e | 2010-12-24 00:30:00 +0000 | [diff] [blame] | 11994 | else |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 11995 | excluding = MagickFalse; |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 11996 | |
| 11997 | if (logging != MagickFalse) |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 11998 | { |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 11999 | if (source == 0 || source == 2) |
| 12000 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12001 | " png:exclude-chunk=%s found in image options.\n", value); |
| 12002 | else if (source == 1 || source == 3) |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 12003 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12004 | " png:exclude-chunk=%s found in image artifacts.\n", value); |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 12005 | else if (source == 4 || source == 6) |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 12006 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 12007 | " png:include-chunk=%s found in image options.\n", value); |
| 12008 | else /* if (source == 5 || source == 7) */ |
| 12009 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12010 | " png:include-chunk=%s found in image artifacts.\n", value); |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 12011 | } |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 12012 | |
glennrp | 689efa2 | 2014-07-25 00:00:15 +0000 | [diff] [blame] | 12013 | if (IsOptionMember("all",value) != MagickFalse) |
glennrp | 97d1b57 | 2013-05-24 01:41:32 +0000 | [diff] [blame] | 12014 | { |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 12015 | mng_info->ping_exclude_bKGD=excluding; |
| 12016 | mng_info->ping_exclude_cHRM=excluding; |
| 12017 | mng_info->ping_exclude_date=excluding; |
| 12018 | mng_info->ping_exclude_EXIF=excluding; |
| 12019 | mng_info->ping_exclude_gAMA=excluding; |
| 12020 | mng_info->ping_exclude_iCCP=excluding; |
| 12021 | /* mng_info->ping_exclude_iTXt=excluding; */ |
| 12022 | mng_info->ping_exclude_oFFs=excluding; |
| 12023 | mng_info->ping_exclude_pHYs=excluding; |
| 12024 | mng_info->ping_exclude_sRGB=excluding; |
| 12025 | mng_info->ping_exclude_tEXt=excluding; |
dirk | fd6fd07 | 2014-10-24 21:10:08 +0000 | [diff] [blame] | 12026 | mng_info->ping_exclude_tIME=excluding; |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 12027 | mng_info->ping_exclude_tRNS=excluding; |
| 12028 | mng_info->ping_exclude_vpAg=excluding; |
| 12029 | mng_info->ping_exclude_zCCP=excluding; |
| 12030 | mng_info->ping_exclude_zTXt=excluding; |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 12031 | } |
glennrp | 280283d | 2014-08-01 15:02:04 +0000 | [diff] [blame] | 12032 | |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 12033 | if (IsOptionMember("none",value) != MagickFalse) |
glennrp | acba004 | 2010-12-24 14:27:26 +0000 | [diff] [blame] | 12034 | { |
cristy | a20c8fe | 2014-08-14 11:55:11 +0000 | [diff] [blame] | 12035 | mng_info->ping_exclude_bKGD=excluding != MagickFalse ? MagickFalse : |
| 12036 | MagickTrue; |
| 12037 | mng_info->ping_exclude_cHRM=excluding != MagickFalse ? MagickFalse : |
| 12038 | MagickTrue; |
| 12039 | mng_info->ping_exclude_date=excluding != MagickFalse ? MagickFalse : |
| 12040 | MagickTrue; |
| 12041 | mng_info->ping_exclude_EXIF=excluding != MagickFalse ? MagickFalse : |
| 12042 | MagickTrue; |
| 12043 | mng_info->ping_exclude_gAMA=excluding != MagickFalse ? MagickFalse : |
| 12044 | MagickTrue; |
| 12045 | mng_info->ping_exclude_iCCP=excluding != MagickFalse ? MagickFalse : |
| 12046 | MagickTrue; |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 12047 | /* mng_info->ping_exclude_iTXt=!excluding; */ |
cristy | a20c8fe | 2014-08-14 11:55:11 +0000 | [diff] [blame] | 12048 | mng_info->ping_exclude_oFFs=excluding != MagickFalse ? MagickFalse : |
| 12049 | MagickTrue; |
| 12050 | mng_info->ping_exclude_pHYs=excluding != MagickFalse ? MagickFalse : |
| 12051 | MagickTrue; |
| 12052 | mng_info->ping_exclude_sRGB=excluding != MagickFalse ? MagickFalse : |
| 12053 | MagickTrue; |
| 12054 | mng_info->ping_exclude_tEXt=excluding != MagickFalse ? MagickFalse : |
| 12055 | MagickTrue; |
dirk | fd6fd07 | 2014-10-24 21:10:08 +0000 | [diff] [blame] | 12056 | mng_info->ping_exclude_tIME=excluding != MagickFalse ? MagickFalse : |
| 12057 | MagickTrue; |
cristy | a20c8fe | 2014-08-14 11:55:11 +0000 | [diff] [blame] | 12058 | mng_info->ping_exclude_tRNS=excluding != MagickFalse ? MagickFalse : |
| 12059 | MagickTrue; |
| 12060 | mng_info->ping_exclude_vpAg=excluding != MagickFalse ? MagickFalse : |
| 12061 | MagickTrue; |
| 12062 | mng_info->ping_exclude_zCCP=excluding != MagickFalse ? MagickFalse : |
| 12063 | MagickTrue; |
| 12064 | mng_info->ping_exclude_zTXt=excluding != MagickFalse ? MagickFalse : |
| 12065 | MagickTrue; |
glennrp | acba004 | 2010-12-24 14:27:26 +0000 | [diff] [blame] | 12066 | } |
| 12067 | |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 12068 | if (IsOptionMember("bkgd",value) != MagickFalse) |
| 12069 | mng_info->ping_exclude_bKGD=excluding; |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 12070 | |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 12071 | if (IsOptionMember("chrm",value) != MagickFalse) |
| 12072 | mng_info->ping_exclude_cHRM=excluding; |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 12073 | |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 12074 | if (IsOptionMember("date",value) != MagickFalse) |
| 12075 | mng_info->ping_exclude_date=excluding; |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 12076 | |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 12077 | if (IsOptionMember("exif",value) != MagickFalse) |
| 12078 | mng_info->ping_exclude_EXIF=excluding; |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 12079 | |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 12080 | if (IsOptionMember("gama",value) != MagickFalse) |
| 12081 | mng_info->ping_exclude_gAMA=excluding; |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 12082 | |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 12083 | if (IsOptionMember("iccp",value) != MagickFalse) |
| 12084 | mng_info->ping_exclude_iCCP=excluding; |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 12085 | |
glennrp | 689efa2 | 2014-07-25 00:00:15 +0000 | [diff] [blame] | 12086 | #if 0 |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 12087 | if (IsOptionMember("itxt",value) != MagickFalse) |
| 12088 | mng_info->ping_exclude_iTXt=excluding; |
glennrp | 689efa2 | 2014-07-25 00:00:15 +0000 | [diff] [blame] | 12089 | #endif |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 12090 | |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 12091 | if (IsOptionMember("offs",value) != MagickFalse) |
| 12092 | mng_info->ping_exclude_oFFs=excluding; |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 12093 | |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 12094 | if (IsOptionMember("phys",value) != MagickFalse) |
| 12095 | mng_info->ping_exclude_pHYs=excluding; |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 12096 | |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 12097 | if (IsOptionMember("srgb",value) != MagickFalse) |
| 12098 | mng_info->ping_exclude_sRGB=excluding; |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 12099 | |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 12100 | if (IsOptionMember("text",value) != MagickFalse) |
| 12101 | mng_info->ping_exclude_tEXt=excluding; |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 12102 | |
dirk | fd6fd07 | 2014-10-24 21:10:08 +0000 | [diff] [blame] | 12103 | if (IsOptionMember("time",value) != MagickFalse) |
| 12104 | mng_info->ping_exclude_tIME=excluding; |
| 12105 | |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 12106 | if (IsOptionMember("trns",value) != MagickFalse) |
| 12107 | mng_info->ping_exclude_tRNS=excluding; |
glennrp | a1e3b7b | 2010-12-24 16:37:33 +0000 | [diff] [blame] | 12108 | |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 12109 | if (IsOptionMember("vpag",value) != MagickFalse) |
| 12110 | mng_info->ping_exclude_vpAg=excluding; |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 12111 | |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 12112 | if (IsOptionMember("zccp",value) != MagickFalse) |
| 12113 | mng_info->ping_exclude_zCCP=excluding; |
glennrp | 2cc891a | 2010-12-24 13:44:32 +0000 | [diff] [blame] | 12114 | |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 12115 | if (IsOptionMember("ztxt",value) != MagickFalse) |
| 12116 | mng_info->ping_exclude_zTXt=excluding; |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 12117 | } |
| 12118 | |
glennrp | 1a506ac | 2014-07-25 19:49:10 +0000 | [diff] [blame] | 12119 | if (logging != MagickFalse) |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 12120 | { |
| 12121 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | 5d6fc9c | 2011-12-27 03:10:42 +0000 | [diff] [blame] | 12122 | " Chunks to be excluded from the output png:"); |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 12123 | if (mng_info->ping_exclude_bKGD != MagickFalse) |
| 12124 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12125 | " bKGD"); |
| 12126 | if (mng_info->ping_exclude_cHRM != MagickFalse) |
| 12127 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12128 | " cHRM"); |
glennrp | a0ed009 | 2011-04-18 16:36:29 +0000 | [diff] [blame] | 12129 | if (mng_info->ping_exclude_date != MagickFalse) |
| 12130 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12131 | " date"); |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 12132 | if (mng_info->ping_exclude_EXIF != MagickFalse) |
| 12133 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12134 | " EXIF"); |
| 12135 | if (mng_info->ping_exclude_gAMA != MagickFalse) |
| 12136 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12137 | " gAMA"); |
| 12138 | if (mng_info->ping_exclude_iCCP != MagickFalse) |
| 12139 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12140 | " iCCP"); |
glennrp | 689efa2 | 2014-07-25 00:00:15 +0000 | [diff] [blame] | 12141 | #if 0 |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 12142 | if (mng_info->ping_exclude_iTXt != MagickFalse) |
| 12143 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12144 | " iTXt"); |
glennrp | 689efa2 | 2014-07-25 00:00:15 +0000 | [diff] [blame] | 12145 | #endif |
| 12146 | |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 12147 | if (mng_info->ping_exclude_oFFs != MagickFalse) |
| 12148 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12149 | " oFFs"); |
| 12150 | if (mng_info->ping_exclude_pHYs != MagickFalse) |
| 12151 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12152 | " pHYs"); |
| 12153 | if (mng_info->ping_exclude_sRGB != MagickFalse) |
| 12154 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12155 | " sRGB"); |
| 12156 | if (mng_info->ping_exclude_tEXt != MagickFalse) |
| 12157 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12158 | " tEXt"); |
dirk | fd6fd07 | 2014-10-24 21:10:08 +0000 | [diff] [blame] | 12159 | if (mng_info->ping_exclude_tIME != MagickFalse) |
| 12160 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12161 | " tIME"); |
glennrp | a1e3b7b | 2010-12-24 16:37:33 +0000 | [diff] [blame] | 12162 | if (mng_info->ping_exclude_tRNS != MagickFalse) |
| 12163 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12164 | " tRNS"); |
glennrp | 26f3791 | 2010-12-23 16:22:42 +0000 | [diff] [blame] | 12165 | if (mng_info->ping_exclude_vpAg != MagickFalse) |
| 12166 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12167 | " vpAg"); |
| 12168 | if (mng_info->ping_exclude_zCCP != MagickFalse) |
| 12169 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12170 | " zCCP"); |
| 12171 | if (mng_info->ping_exclude_zTXt != MagickFalse) |
| 12172 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12173 | " zTXt"); |
| 12174 | } |
| 12175 | |
glennrp | b9cfe27 | 2010-12-21 15:08:06 +0000 | [diff] [blame] | 12176 | mng_info->need_blob = MagickTrue; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12177 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 12178 | status=WriteOnePNGImage(mng_info,image_info,image,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12179 | |
| 12180 | MngInfoFreeStruct(mng_info,&have_mng_structure); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12181 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12182 | if (logging != MagickFalse) |
| 12183 | (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WritePNGImage()"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12184 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12185 | return(status); |
| 12186 | } |
| 12187 | |
| 12188 | #if defined(JNG_SUPPORTED) |
| 12189 | |
| 12190 | /* Write one JNG image */ |
| 12191 | static MagickBooleanType WriteOneJNGImage(MngInfo *mng_info, |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 12192 | const ImageInfo *image_info,Image *image,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12193 | { |
| 12194 | Image |
| 12195 | *jpeg_image; |
| 12196 | |
| 12197 | ImageInfo |
| 12198 | *jpeg_image_info; |
| 12199 | |
| 12200 | MagickBooleanType |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 12201 | logging, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12202 | status; |
| 12203 | |
| 12204 | size_t |
| 12205 | length; |
| 12206 | |
| 12207 | unsigned char |
| 12208 | *blob, |
| 12209 | chunk[80], |
| 12210 | *p; |
| 12211 | |
| 12212 | unsigned int |
| 12213 | jng_alpha_compression_method, |
| 12214 | jng_alpha_sample_depth, |
| 12215 | jng_color_type, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12216 | transparent; |
| 12217 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 12218 | size_t |
glennrp | 59575fa | 2011-12-31 21:31:39 +0000 | [diff] [blame] | 12219 | jng_alpha_quality, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12220 | jng_quality; |
| 12221 | |
| 12222 | logging=LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 12223 | " Enter WriteOneJNGImage()"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12224 | |
| 12225 | blob=(unsigned char *) NULL; |
| 12226 | jpeg_image=(Image *) NULL; |
| 12227 | jpeg_image_info=(ImageInfo *) NULL; |
glennrp | 7e99a06 | 2015-02-07 16:30:52 +0000 | [diff] [blame] | 12228 | length=0; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12229 | |
| 12230 | status=MagickTrue; |
cristy | def23e5 | 2015-01-22 11:52:01 +0000 | [diff] [blame] | 12231 | transparent=image_info->type==GrayscaleAlphaType || |
glennrp | 44c2297 | 2015-01-25 03:10:16 +0000 | [diff] [blame] | 12232 | image_info->type==TrueColorAlphaType || |
| 12233 | image->alpha_trait != UndefinedPixelTrait; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12234 | |
glennrp | 4b91759 | 2013-06-20 19:53:59 +0000 | [diff] [blame] | 12235 | jng_alpha_sample_depth = 0; |
| 12236 | |
glennrp | 59575fa | 2011-12-31 21:31:39 +0000 | [diff] [blame] | 12237 | jng_quality=image_info->quality == 0UL ? 75UL : image_info->quality%1000; |
| 12238 | |
| 12239 | jng_alpha_compression_method=image->compression==JPEGCompression? 8 : 0; |
| 12240 | |
glennrp | 750105b | 2012-04-25 16:20:45 +0000 | [diff] [blame] | 12241 | jng_alpha_quality=image_info->quality == 0UL ? 75UL : |
glennrp | 59575fa | 2011-12-31 21:31:39 +0000 | [diff] [blame] | 12242 | image_info->quality; |
| 12243 | |
| 12244 | if (jng_alpha_quality >= 1000) |
| 12245 | jng_alpha_quality /= 1000; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12246 | |
glennrp | d0ee5a2 | 2014-03-28 14:28:47 +0000 | [diff] [blame] | 12247 | length=0; |
| 12248 | |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 12249 | if (transparent != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12250 | { |
| 12251 | jng_color_type=14; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12252 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12253 | /* Create JPEG blob, image, and image_info */ |
| 12254 | if (logging != MagickFalse) |
| 12255 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 12256 | " Creating jpeg_image_info for alpha."); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12257 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12258 | jpeg_image_info=(ImageInfo *) CloneImageInfo(image_info); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12259 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12260 | if (jpeg_image_info == (ImageInfo *) NULL) |
| 12261 | ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12262 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12263 | if (logging != MagickFalse) |
| 12264 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12265 | " Creating jpeg_image."); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12266 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 12267 | jpeg_image=SeparateImage(image,AlphaChannel,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12268 | if (jpeg_image == (Image *) NULL) |
| 12269 | ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 12270 | (void) CopyMagickString(jpeg_image->magick,"JPEG",MagickPathExtent); |
cristy | 8a46d82 | 2012-08-28 23:32:39 +0000 | [diff] [blame] | 12271 | jpeg_image->alpha_trait=UndefinedPixelTrait; |
glennrp | 8f77fdc | 2012-03-21 15:16:37 +0000 | [diff] [blame] | 12272 | jpeg_image->quality=jng_alpha_quality; |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 12273 | jpeg_image_info->type=GrayscaleType; |
| 12274 | (void) SetImageType(jpeg_image,GrayscaleType,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12275 | (void) AcquireUniqueFilename(jpeg_image->filename); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 12276 | (void) FormatLocaleString(jpeg_image_info->filename,MagickPathExtent, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12277 | "%s",jpeg_image->filename); |
| 12278 | } |
glennrp | 59575fa | 2011-12-31 21:31:39 +0000 | [diff] [blame] | 12279 | else |
| 12280 | { |
| 12281 | jng_alpha_compression_method=0; |
| 12282 | jng_color_type=10; |
| 12283 | jng_alpha_sample_depth=0; |
| 12284 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12285 | |
| 12286 | /* To do: check bit depth of PNG alpha channel */ |
| 12287 | |
| 12288 | /* Check if image is grayscale. */ |
cristy | def23e5 | 2015-01-22 11:52:01 +0000 | [diff] [blame] | 12289 | if (image_info->type != TrueColorAlphaType && image_info->type != |
dirk | f1d8548 | 2015-04-06 00:36:00 +0000 | [diff] [blame] | 12290 | TrueColorType && SetImageGray(image,exception)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12291 | jng_color_type-=2; |
| 12292 | |
glennrp | 59575fa | 2011-12-31 21:31:39 +0000 | [diff] [blame] | 12293 | if (logging != MagickFalse) |
| 12294 | { |
| 12295 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12296 | " JNG Quality = %d",(int) jng_quality); |
| 12297 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12298 | " JNG Color Type = %d",jng_color_type); |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 12299 | if (transparent != 0) |
glennrp | 59575fa | 2011-12-31 21:31:39 +0000 | [diff] [blame] | 12300 | { |
| 12301 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12302 | " JNG Alpha Compression = %d",jng_alpha_compression_method); |
| 12303 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12304 | " JNG Alpha Depth = %d",jng_alpha_sample_depth); |
| 12305 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12306 | " JNG Alpha Quality = %d",(int) jng_alpha_quality); |
| 12307 | } |
| 12308 | } |
| 12309 | |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 12310 | if (transparent != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12311 | { |
| 12312 | if (jng_alpha_compression_method==0) |
| 12313 | { |
| 12314 | const char |
| 12315 | *value; |
| 12316 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 12317 | /* Encode alpha as a grayscale PNG blob */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12318 | status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 12319 | exception); |
glennrp | 44c2297 | 2015-01-25 03:10:16 +0000 | [diff] [blame] | 12320 | if (status == MagickFalse) |
| 12321 | ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
| 12322 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12323 | if (logging != MagickFalse) |
| 12324 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12325 | " Creating PNG blob."); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12326 | |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 12327 | (void) CopyMagickString(jpeg_image_info->magick,"PNG",MagickPathExtent); |
| 12328 | (void) CopyMagickString(jpeg_image->magick,"PNG",MagickPathExtent); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12329 | jpeg_image_info->interlace=NoInterlace; |
| 12330 | |
glennrp | cc5d45b | 2012-01-06 04:06:10 +0000 | [diff] [blame] | 12331 | /* Exclude all ancillary chunks */ |
| 12332 | (void) SetImageArtifact(jpeg_image,"png:exclude-chunks","all"); |
| 12333 | |
cristy | b3f97ae | 2015-05-18 12:29:32 +0000 | [diff] [blame] | 12334 | blob=(unsigned char *) ImageToBlob(jpeg_image_info,jpeg_image, |
| 12335 | &length,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12336 | |
| 12337 | /* Retrieve sample depth used */ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 12338 | value=GetImageProperty(jpeg_image,"png:bit-depth-written",exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12339 | if (value != (char *) NULL) |
| 12340 | jng_alpha_sample_depth= (unsigned int) value[0]; |
| 12341 | } |
| 12342 | else |
| 12343 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 12344 | /* Encode alpha as a grayscale JPEG blob */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12345 | |
| 12346 | status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 12347 | exception); |
glennrp | 44c2297 | 2015-01-25 03:10:16 +0000 | [diff] [blame] | 12348 | if (status == MagickFalse) |
| 12349 | ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
| 12350 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12351 | |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 12352 | (void) CopyMagickString(jpeg_image_info->magick,"JPEG",MagickPathExtent); |
| 12353 | (void) CopyMagickString(jpeg_image->magick,"JPEG",MagickPathExtent); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12354 | jpeg_image_info->interlace=NoInterlace; |
| 12355 | if (logging != MagickFalse) |
| 12356 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12357 | " Creating blob."); |
cristy | b3f97ae | 2015-05-18 12:29:32 +0000 | [diff] [blame] | 12358 | blob=(unsigned char *) ImageToBlob(jpeg_image_info,jpeg_image,&length, |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 12359 | exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12360 | jng_alpha_sample_depth=8; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12361 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12362 | if (logging != MagickFalse) |
| 12363 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 12364 | " Successfully read jpeg_image into a blob, length=%.20g.", |
| 12365 | (double) length); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12366 | |
| 12367 | } |
| 12368 | /* Destroy JPEG image and image_info */ |
| 12369 | jpeg_image=DestroyImage(jpeg_image); |
| 12370 | (void) RelinquishUniqueFileResource(jpeg_image_info->filename); |
| 12371 | jpeg_image_info=DestroyImageInfo(jpeg_image_info); |
| 12372 | } |
| 12373 | |
| 12374 | /* Write JHDR chunk */ |
| 12375 | (void) WriteBlobMSBULong(image,16L); /* chunk data length=16 */ |
| 12376 | PNGType(chunk,mng_JHDR); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 12377 | LogPNGChunk(logging,mng_JHDR,16L); |
cristy | 4e5bc84 | 2010-06-09 13:56:01 +0000 | [diff] [blame] | 12378 | PNGLong(chunk+4,(png_uint_32) image->columns); |
| 12379 | PNGLong(chunk+8,(png_uint_32) image->rows); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12380 | chunk[12]=jng_color_type; |
| 12381 | chunk[13]=8; /* sample depth */ |
| 12382 | chunk[14]=8; /*jng_image_compression_method */ |
| 12383 | chunk[15]=(unsigned char) (image_info->interlace == NoInterlace ? 0 : 8); |
| 12384 | chunk[16]=jng_alpha_sample_depth; |
| 12385 | chunk[17]=jng_alpha_compression_method; |
| 12386 | chunk[18]=0; /*jng_alpha_filter_method */ |
| 12387 | chunk[19]=0; /*jng_alpha_interlace_method */ |
| 12388 | (void) WriteBlob(image,20,chunk); |
| 12389 | (void) WriteBlobMSBULong(image,crc32(0,chunk,20)); |
| 12390 | if (logging != MagickFalse) |
| 12391 | { |
| 12392 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | f2faecf | 2010-05-28 19:19:36 +0000 | [diff] [blame] | 12393 | " JNG width:%15lu",(unsigned long) image->columns); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12394 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12395 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | f2faecf | 2010-05-28 19:19:36 +0000 | [diff] [blame] | 12396 | " JNG height:%14lu",(unsigned long) image->rows); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12397 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12398 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12399 | " JNG color type:%10d",jng_color_type); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12400 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12401 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12402 | " JNG sample depth:%8d",8); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12403 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12404 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12405 | " JNG compression:%9d",8); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12406 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12407 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12408 | " JNG interlace:%11d",0); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12409 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12410 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12411 | " JNG alpha depth:%9d",jng_alpha_sample_depth); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12412 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12413 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12414 | " JNG alpha compression:%3d",jng_alpha_compression_method); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12415 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12416 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12417 | " JNG alpha filter:%8d",0); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12418 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12419 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12420 | " JNG alpha interlace:%5d",0); |
| 12421 | } |
| 12422 | |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12423 | /* Write any JNG-chunk-b profiles */ |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 12424 | (void) Magick_png_write_chunk_from_profile(image,"JNG-chunk-b",logging); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12425 | |
| 12426 | /* |
| 12427 | Write leading ancillary chunks |
| 12428 | */ |
| 12429 | |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 12430 | if (transparent != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12431 | { |
| 12432 | /* |
| 12433 | Write JNG bKGD chunk |
| 12434 | */ |
| 12435 | |
| 12436 | unsigned char |
| 12437 | blue, |
| 12438 | green, |
| 12439 | red; |
| 12440 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 12441 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12442 | num_bytes; |
| 12443 | |
| 12444 | if (jng_color_type == 8 || jng_color_type == 12) |
| 12445 | num_bytes=6L; |
| 12446 | else |
| 12447 | num_bytes=10L; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 12448 | (void) WriteBlobMSBULong(image,(size_t) (num_bytes-4L)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12449 | PNGType(chunk,mng_bKGD); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 12450 | LogPNGChunk(logging,mng_bKGD,(size_t) (num_bytes-4L)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12451 | red=ScaleQuantumToChar(image->background_color.red); |
| 12452 | green=ScaleQuantumToChar(image->background_color.green); |
| 12453 | blue=ScaleQuantumToChar(image->background_color.blue); |
| 12454 | *(chunk+4)=0; |
| 12455 | *(chunk+5)=red; |
| 12456 | *(chunk+6)=0; |
| 12457 | *(chunk+7)=green; |
| 12458 | *(chunk+8)=0; |
| 12459 | *(chunk+9)=blue; |
| 12460 | (void) WriteBlob(image,(size_t) num_bytes,chunk); |
| 12461 | (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) num_bytes)); |
| 12462 | } |
| 12463 | |
| 12464 | if ((image->colorspace == sRGBColorspace || image->rendering_intent)) |
| 12465 | { |
| 12466 | /* |
| 12467 | Write JNG sRGB chunk |
| 12468 | */ |
| 12469 | (void) WriteBlobMSBULong(image,1L); |
| 12470 | PNGType(chunk,mng_sRGB); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 12471 | LogPNGChunk(logging,mng_sRGB,1L); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12472 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12473 | if (image->rendering_intent != UndefinedIntent) |
glennrp | e610a07 | 2010-08-05 17:08:46 +0000 | [diff] [blame] | 12474 | chunk[4]=(unsigned char) |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 12475 | Magick_RenderingIntent_to_PNG_RenderingIntent( |
glennrp | e610a07 | 2010-08-05 17:08:46 +0000 | [diff] [blame] | 12476 | (image->rendering_intent)); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12477 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12478 | else |
glennrp | e610a07 | 2010-08-05 17:08:46 +0000 | [diff] [blame] | 12479 | chunk[4]=(unsigned char) |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 12480 | Magick_RenderingIntent_to_PNG_RenderingIntent( |
glennrp | e610a07 | 2010-08-05 17:08:46 +0000 | [diff] [blame] | 12481 | (PerceptualIntent)); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12482 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12483 | (void) WriteBlob(image,5,chunk); |
| 12484 | (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); |
| 12485 | } |
| 12486 | else |
| 12487 | { |
| 12488 | if (image->gamma != 0.0) |
| 12489 | { |
| 12490 | /* |
| 12491 | Write JNG gAMA chunk |
| 12492 | */ |
| 12493 | (void) WriteBlobMSBULong(image,4L); |
| 12494 | PNGType(chunk,mng_gAMA); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 12495 | LogPNGChunk(logging,mng_gAMA,4L); |
cristy | 35ef824 | 2010-06-03 16:24:13 +0000 | [diff] [blame] | 12496 | PNGLong(chunk+4,(png_uint_32) (100000*image->gamma+0.5)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12497 | (void) WriteBlob(image,8,chunk); |
| 12498 | (void) WriteBlobMSBULong(image,crc32(0,chunk,8)); |
| 12499 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12500 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12501 | if ((mng_info->equal_chrms == MagickFalse) && |
| 12502 | (image->chromaticity.red_primary.x != 0.0)) |
| 12503 | { |
| 12504 | PrimaryInfo |
| 12505 | primary; |
| 12506 | |
| 12507 | /* |
| 12508 | Write JNG cHRM chunk |
| 12509 | */ |
| 12510 | (void) WriteBlobMSBULong(image,32L); |
| 12511 | PNGType(chunk,mng_cHRM); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 12512 | LogPNGChunk(logging,mng_cHRM,32L); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12513 | primary=image->chromaticity.white_point; |
cristy | 35ef824 | 2010-06-03 16:24:13 +0000 | [diff] [blame] | 12514 | PNGLong(chunk+4,(png_uint_32) (100000*primary.x+0.5)); |
| 12515 | PNGLong(chunk+8,(png_uint_32) (100000*primary.y+0.5)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12516 | primary=image->chromaticity.red_primary; |
cristy | 35ef824 | 2010-06-03 16:24:13 +0000 | [diff] [blame] | 12517 | PNGLong(chunk+12,(png_uint_32) (100000*primary.x+0.5)); |
| 12518 | PNGLong(chunk+16,(png_uint_32) (100000*primary.y+0.5)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12519 | primary=image->chromaticity.green_primary; |
cristy | 35ef824 | 2010-06-03 16:24:13 +0000 | [diff] [blame] | 12520 | PNGLong(chunk+20,(png_uint_32) (100000*primary.x+0.5)); |
| 12521 | PNGLong(chunk+24,(png_uint_32) (100000*primary.y+0.5)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12522 | primary=image->chromaticity.blue_primary; |
cristy | 35ef824 | 2010-06-03 16:24:13 +0000 | [diff] [blame] | 12523 | PNGLong(chunk+28,(png_uint_32) (100000*primary.x+0.5)); |
| 12524 | PNGLong(chunk+32,(png_uint_32) (100000*primary.y+0.5)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12525 | (void) WriteBlob(image,36,chunk); |
| 12526 | (void) WriteBlobMSBULong(image,crc32(0,chunk,36)); |
| 12527 | } |
| 12528 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12529 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 12530 | if (image->resolution.x && image->resolution.y && !mng_info->equal_physs) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12531 | { |
| 12532 | /* |
| 12533 | Write JNG pHYs chunk |
| 12534 | */ |
| 12535 | (void) WriteBlobMSBULong(image,9L); |
| 12536 | PNGType(chunk,mng_pHYs); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 12537 | LogPNGChunk(logging,mng_pHYs,9L); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12538 | if (image->units == PixelsPerInchResolution) |
| 12539 | { |
cristy | 35ef824 | 2010-06-03 16:24:13 +0000 | [diff] [blame] | 12540 | PNGLong(chunk+4,(png_uint_32) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 12541 | (image->resolution.x*100.0/2.54+0.5)); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12542 | |
cristy | 35ef824 | 2010-06-03 16:24:13 +0000 | [diff] [blame] | 12543 | PNGLong(chunk+8,(png_uint_32) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 12544 | (image->resolution.y*100.0/2.54+0.5)); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12545 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12546 | chunk[12]=1; |
| 12547 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12548 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12549 | else |
| 12550 | { |
| 12551 | if (image->units == PixelsPerCentimeterResolution) |
| 12552 | { |
cristy | 35ef824 | 2010-06-03 16:24:13 +0000 | [diff] [blame] | 12553 | PNGLong(chunk+4,(png_uint_32) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 12554 | (image->resolution.x*100.0+0.5)); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12555 | |
cristy | 35ef824 | 2010-06-03 16:24:13 +0000 | [diff] [blame] | 12556 | PNGLong(chunk+8,(png_uint_32) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 12557 | (image->resolution.y*100.0+0.5)); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12558 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12559 | chunk[12]=1; |
| 12560 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12561 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12562 | else |
| 12563 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 12564 | PNGLong(chunk+4,(png_uint_32) (image->resolution.x+0.5)); |
| 12565 | PNGLong(chunk+8,(png_uint_32) (image->resolution.y+0.5)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12566 | chunk[12]=0; |
| 12567 | } |
| 12568 | } |
| 12569 | (void) WriteBlob(image,13,chunk); |
| 12570 | (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); |
| 12571 | } |
| 12572 | |
| 12573 | if (mng_info->write_mng == 0 && (image->page.x || image->page.y)) |
| 12574 | { |
| 12575 | /* |
| 12576 | Write JNG oFFs chunk |
| 12577 | */ |
| 12578 | (void) WriteBlobMSBULong(image,9L); |
| 12579 | PNGType(chunk,mng_oFFs); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 12580 | LogPNGChunk(logging,mng_oFFs,9L); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 12581 | PNGsLong(chunk+4,(ssize_t) (image->page.x)); |
| 12582 | PNGsLong(chunk+8,(ssize_t) (image->page.y)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12583 | chunk[12]=0; |
| 12584 | (void) WriteBlob(image,13,chunk); |
| 12585 | (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); |
| 12586 | } |
| 12587 | if (mng_info->write_mng == 0 && (image->page.width || image->page.height)) |
| 12588 | { |
| 12589 | (void) WriteBlobMSBULong(image,9L); /* data length=8 */ |
| 12590 | PNGType(chunk,mng_vpAg); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 12591 | LogPNGChunk(logging,mng_vpAg,9L); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12592 | PNGLong(chunk+4,(png_uint_32) image->page.width); |
| 12593 | PNGLong(chunk+8,(png_uint_32) image->page.height); |
| 12594 | chunk[12]=0; /* unit = pixels */ |
| 12595 | (void) WriteBlob(image,13,chunk); |
| 12596 | (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); |
| 12597 | } |
| 12598 | |
glennrp | 8fe9159 | 2014-10-25 13:57:25 +0000 | [diff] [blame] | 12599 | if (transparent != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12600 | { |
| 12601 | if (jng_alpha_compression_method==0) |
| 12602 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 12603 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12604 | i; |
| 12605 | |
cristy | fa6de8c | 2014-05-18 16:34:44 +0000 | [diff] [blame] | 12606 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12607 | len; |
| 12608 | |
| 12609 | /* Write IDAT chunk header */ |
| 12610 | if (logging != MagickFalse) |
| 12611 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 12612 | " Write IDAT chunks from blob, length=%.20g.",(double) |
cristy | f2faecf | 2010-05-28 19:19:36 +0000 | [diff] [blame] | 12613 | length); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12614 | |
| 12615 | /* Copy IDAT chunks */ |
| 12616 | len=0; |
| 12617 | p=blob+8; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 12618 | for (i=8; i<(ssize_t) length; i+=len+12) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12619 | { |
cristy | 5389e5a | 2014-05-28 14:22:43 +0000 | [diff] [blame] | 12620 | len=(size_t) (*p<<24)|((*(p+1))<<16)|((*(p+2))<<8)|(*(p+3)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12621 | p+=4; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12622 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12623 | if (*(p)==73 && *(p+1)==68 && *(p+2)==65 && *(p+3)==84) /* IDAT */ |
| 12624 | { |
| 12625 | /* Found an IDAT chunk. */ |
cristy | fa6de8c | 2014-05-18 16:34:44 +0000 | [diff] [blame] | 12626 | (void) WriteBlobMSBULong(image,len); |
| 12627 | LogPNGChunk(logging,mng_IDAT,len); |
| 12628 | (void) WriteBlob(image,len+4,p); |
| 12629 | (void) WriteBlobMSBULong(image, crc32(0,p,(uInt) len+4)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12630 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12631 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12632 | else |
| 12633 | { |
| 12634 | if (logging != MagickFalse) |
| 12635 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 12636 | " Skipping %c%c%c%c chunk, length=%.20g.", |
| 12637 | *(p),*(p+1),*(p+2),*(p+3),(double) len); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12638 | } |
| 12639 | p+=(8+len); |
| 12640 | } |
| 12641 | } |
glennrp | 7e99a06 | 2015-02-07 16:30:52 +0000 | [diff] [blame] | 12642 | else if (length != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12643 | { |
| 12644 | /* Write JDAA chunk header */ |
| 12645 | if (logging != MagickFalse) |
| 12646 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 12647 | " Write JDAA chunk, length=%.20g.",(double) length); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 12648 | (void) WriteBlobMSBULong(image,(size_t) length); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12649 | PNGType(chunk,mng_JDAA); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 12650 | LogPNGChunk(logging,mng_JDAA,length); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12651 | /* Write JDAT chunk(s) data */ |
| 12652 | (void) WriteBlob(image,4,chunk); |
| 12653 | (void) WriteBlob(image,length,blob); |
| 12654 | (void) WriteBlobMSBULong(image,crc32(crc32(0,chunk,4),blob, |
| 12655 | (uInt) length)); |
| 12656 | } |
| 12657 | blob=(unsigned char *) RelinquishMagickMemory(blob); |
| 12658 | } |
| 12659 | |
| 12660 | /* Encode image as a JPEG blob */ |
| 12661 | if (logging != MagickFalse) |
| 12662 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12663 | " Creating jpeg_image_info."); |
| 12664 | jpeg_image_info=(ImageInfo *) CloneImageInfo(image_info); |
| 12665 | if (jpeg_image_info == (ImageInfo *) NULL) |
| 12666 | ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
| 12667 | |
| 12668 | if (logging != MagickFalse) |
| 12669 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12670 | " Creating jpeg_image."); |
| 12671 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 12672 | jpeg_image=CloneImage(image,0,0,MagickTrue,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12673 | if (jpeg_image == (Image *) NULL) |
| 12674 | ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 12675 | (void) CopyMagickString(jpeg_image->magick,"JPEG",MagickPathExtent); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12676 | |
| 12677 | (void) AcquireUniqueFilename(jpeg_image->filename); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 12678 | (void) FormatLocaleString(jpeg_image_info->filename,MagickPathExtent,"%s", |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12679 | jpeg_image->filename); |
| 12680 | |
| 12681 | status=OpenBlob(jpeg_image_info,jpeg_image,WriteBinaryBlobMode, |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 12682 | exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12683 | |
| 12684 | if (logging != MagickFalse) |
| 12685 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 12686 | " Created jpeg_image, %.20g x %.20g.",(double) jpeg_image->columns, |
| 12687 | (double) jpeg_image->rows); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12688 | |
glennrp | 44c2297 | 2015-01-25 03:10:16 +0000 | [diff] [blame] | 12689 | if (status == MagickFalse) |
| 12690 | ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
| 12691 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12692 | if (jng_color_type == 8 || jng_color_type == 12) |
| 12693 | jpeg_image_info->type=GrayscaleType; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12694 | |
glennrp | 59575fa | 2011-12-31 21:31:39 +0000 | [diff] [blame] | 12695 | jpeg_image_info->quality=jng_quality; |
| 12696 | jpeg_image->quality=jng_quality; |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 12697 | (void) CopyMagickString(jpeg_image_info->magick,"JPEG",MagickPathExtent); |
| 12698 | (void) CopyMagickString(jpeg_image->magick,"JPEG",MagickPathExtent); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12699 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12700 | if (logging != MagickFalse) |
| 12701 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12702 | " Creating blob."); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12703 | |
cristy | b3f97ae | 2015-05-18 12:29:32 +0000 | [diff] [blame] | 12704 | blob=(unsigned char *) ImageToBlob(jpeg_image_info,jpeg_image,&length, |
| 12705 | exception); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12706 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12707 | if (logging != MagickFalse) |
| 12708 | { |
| 12709 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 12710 | " Successfully read jpeg_image into a blob, length=%.20g.", |
| 12711 | (double) length); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12712 | |
| 12713 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 12714 | " Write JDAT chunk, length=%.20g.",(double) length); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12715 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12716 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12717 | /* Write JDAT chunk(s) */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 12718 | (void) WriteBlobMSBULong(image,(size_t) length); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12719 | PNGType(chunk,mng_JDAT); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 12720 | LogPNGChunk(logging,mng_JDAT,length); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12721 | (void) WriteBlob(image,4,chunk); |
| 12722 | (void) WriteBlob(image,length,blob); |
| 12723 | (void) WriteBlobMSBULong(image,crc32(crc32(0,chunk,4),blob,(uInt) length)); |
| 12724 | |
| 12725 | jpeg_image=DestroyImage(jpeg_image); |
| 12726 | (void) RelinquishUniqueFileResource(jpeg_image_info->filename); |
| 12727 | jpeg_image_info=DestroyImageInfo(jpeg_image_info); |
| 12728 | blob=(unsigned char *) RelinquishMagickMemory(blob); |
| 12729 | |
| 12730 | /* Write any JNG-chunk-e profiles */ |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 12731 | (void) Magick_png_write_chunk_from_profile(image,"JNG-chunk-e",logging); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12732 | |
| 12733 | /* Write IEND chunk */ |
| 12734 | (void) WriteBlobMSBULong(image,0L); |
| 12735 | PNGType(chunk,mng_IEND); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 12736 | LogPNGChunk(logging,mng_IEND,0); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12737 | (void) WriteBlob(image,4,chunk); |
| 12738 | (void) WriteBlobMSBULong(image,crc32(0,chunk,4)); |
| 12739 | |
| 12740 | if (logging != MagickFalse) |
| 12741 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12742 | " exit WriteOneJNGImage()"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12743 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12744 | return(status); |
| 12745 | } |
| 12746 | |
| 12747 | |
| 12748 | /* |
| 12749 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 12750 | % % |
| 12751 | % % |
| 12752 | % % |
| 12753 | % W r i t e J N G I m a g e % |
| 12754 | % % |
| 12755 | % % |
| 12756 | % % |
| 12757 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 12758 | % |
| 12759 | % WriteJNGImage() writes a JPEG Network Graphics (JNG) image file. |
| 12760 | % |
| 12761 | % JNG support written by Glenn Randers-Pehrson, glennrp@image... |
| 12762 | % |
| 12763 | % The format of the WriteJNGImage method is: |
| 12764 | % |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 12765 | % MagickBooleanType WriteJNGImage(const ImageInfo *image_info, |
| 12766 | % Image *image,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12767 | % |
| 12768 | % A description of each parameter follows: |
| 12769 | % |
| 12770 | % o image_info: the image info. |
| 12771 | % |
| 12772 | % o image: The image. |
| 12773 | % |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 12774 | % o exception: return any errors or warnings in this structure. |
| 12775 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12776 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 12777 | */ |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 12778 | static MagickBooleanType WriteJNGImage(const ImageInfo *image_info,Image *image, |
| 12779 | ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12780 | { |
| 12781 | MagickBooleanType |
glennrp | 21f0e62 | 2011-01-07 16:20:57 +0000 | [diff] [blame] | 12782 | have_mng_structure, |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 12783 | logging, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12784 | status; |
| 12785 | |
| 12786 | MngInfo |
| 12787 | *mng_info; |
| 12788 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12789 | /* |
| 12790 | Open image file. |
| 12791 | */ |
| 12792 | assert(image_info != (const ImageInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 12793 | assert(image_info->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12794 | assert(image != (Image *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 12795 | assert(image->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12796 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 12797 | logging=LogMagickEvent(CoderEvent,GetMagickModule(),"Enter WriteJNGImage()"); |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 12798 | status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12799 | if (status == MagickFalse) |
| 12800 | return(status); |
| 12801 | |
| 12802 | /* |
| 12803 | Allocate a MngInfo structure. |
| 12804 | */ |
| 12805 | have_mng_structure=MagickFalse; |
cristy | 73bd4a5 | 2010-10-05 11:24:23 +0000 | [diff] [blame] | 12806 | mng_info=(MngInfo *) AcquireMagickMemory(sizeof(MngInfo)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12807 | if (mng_info == (MngInfo *) NULL) |
| 12808 | ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
| 12809 | /* |
| 12810 | Initialize members of the MngInfo structure. |
| 12811 | */ |
| 12812 | (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); |
| 12813 | mng_info->image=image; |
| 12814 | have_mng_structure=MagickTrue; |
| 12815 | |
| 12816 | (void) WriteBlob(image,8,(const unsigned char *) "\213JNG\r\n\032\n"); |
| 12817 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 12818 | status=WriteOneJNGImage(mng_info,image_info,image,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12819 | (void) CloseBlob(image); |
| 12820 | |
| 12821 | (void) CatchImageException(image); |
| 12822 | MngInfoFreeStruct(mng_info,&have_mng_structure); |
| 12823 | if (logging != MagickFalse) |
| 12824 | (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WriteJNGImage()"); |
| 12825 | return(status); |
| 12826 | } |
| 12827 | #endif |
| 12828 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 12829 | static MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image, |
| 12830 | ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12831 | { |
| 12832 | const char |
| 12833 | *option; |
| 12834 | |
| 12835 | Image |
| 12836 | *next_image; |
| 12837 | |
| 12838 | MagickBooleanType |
glennrp | 21f0e62 | 2011-01-07 16:20:57 +0000 | [diff] [blame] | 12839 | have_mng_structure, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12840 | status; |
| 12841 | |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 12842 | volatile MagickBooleanType |
| 12843 | logging; |
| 12844 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12845 | MngInfo |
| 12846 | *mng_info; |
| 12847 | |
| 12848 | int |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12849 | image_count, |
| 12850 | need_iterations, |
| 12851 | need_matte; |
| 12852 | |
| 12853 | volatile int |
| 12854 | #if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ |
| 12855 | defined(PNG_MNG_FEATURES_SUPPORTED) |
| 12856 | need_local_plte, |
| 12857 | #endif |
| 12858 | all_images_are_gray, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12859 | need_defi, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12860 | use_global_plte; |
| 12861 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 12862 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12863 | i; |
| 12864 | |
| 12865 | unsigned char |
| 12866 | chunk[800]; |
| 12867 | |
| 12868 | volatile unsigned int |
| 12869 | write_jng, |
| 12870 | write_mng; |
| 12871 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 12872 | volatile size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12873 | scene; |
| 12874 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 12875 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12876 | final_delay=0, |
| 12877 | initial_delay; |
| 12878 | |
glennrp | d5045b4 | 2010-03-24 12:40:35 +0000 | [diff] [blame] | 12879 | #if (PNG_LIBPNG_VER < 10200) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12880 | if (image_info->verbose) |
| 12881 | printf("Your PNG library (libpng-%s) is rather old.\n", |
| 12882 | PNG_LIBPNG_VER_STRING); |
| 12883 | #endif |
| 12884 | |
| 12885 | /* |
| 12886 | Open image file. |
| 12887 | */ |
| 12888 | assert(image_info != (const ImageInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 12889 | assert(image_info->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12890 | assert(image != (Image *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 12891 | assert(image->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12892 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
glennrp | fd05d62 | 2011-02-25 04:10:33 +0000 | [diff] [blame] | 12893 | logging=LogMagickEvent(CoderEvent,GetMagickModule(),"Enter WriteMNGImage()"); |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 12894 | status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12895 | if (status == MagickFalse) |
| 12896 | return(status); |
| 12897 | |
| 12898 | /* |
| 12899 | Allocate a MngInfo structure. |
| 12900 | */ |
| 12901 | have_mng_structure=MagickFalse; |
cristy | 73bd4a5 | 2010-10-05 11:24:23 +0000 | [diff] [blame] | 12902 | mng_info=(MngInfo *) AcquireMagickMemory(sizeof(MngInfo)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12903 | if (mng_info == (MngInfo *) NULL) |
| 12904 | ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
| 12905 | /* |
| 12906 | Initialize members of the MngInfo structure. |
| 12907 | */ |
| 12908 | (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); |
| 12909 | mng_info->image=image; |
| 12910 | have_mng_structure=MagickTrue; |
| 12911 | write_mng=LocaleCompare(image_info->magick,"MNG") == 0; |
| 12912 | |
| 12913 | /* |
| 12914 | * See if user has requested a specific PNG subformat to be used |
| 12915 | * for all of the PNGs in the MNG being written, e.g., |
| 12916 | * |
| 12917 | * convert *.png png8:animation.mng |
| 12918 | * |
| 12919 | * To do: check -define png:bit_depth and png:color_type as well, |
| 12920 | * or perhaps use mng:bit_depth and mng:color_type instead for |
| 12921 | * global settings. |
| 12922 | */ |
| 12923 | |
| 12924 | mng_info->write_png8=LocaleCompare(image_info->magick,"PNG8") == 0; |
| 12925 | mng_info->write_png24=LocaleCompare(image_info->magick,"PNG24") == 0; |
| 12926 | mng_info->write_png32=LocaleCompare(image_info->magick,"PNG32") == 0; |
| 12927 | |
| 12928 | write_jng=MagickFalse; |
| 12929 | if (image_info->compression == JPEGCompression) |
| 12930 | write_jng=MagickTrue; |
| 12931 | |
| 12932 | mng_info->adjoin=image_info->adjoin && |
| 12933 | (GetNextImageInList(image) != (Image *) NULL) && write_mng; |
| 12934 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12935 | if (logging != MagickFalse) |
| 12936 | { |
| 12937 | /* Log some info about the input */ |
| 12938 | Image |
| 12939 | *p; |
| 12940 | |
| 12941 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 2dd1906 | 2014-07-28 00:22:24 +0000 | [diff] [blame] | 12942 | " Checking input image(s)\n" |
| 12943 | " Image_info depth: %.20g, Type: %d", |
| 12944 | (double) image_info->depth, image_info->type); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12945 | |
| 12946 | scene=0; |
| 12947 | for (p=image; p != (Image *) NULL; p=GetNextImageInList(p)) |
| 12948 | { |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12949 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12950 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
glennrp | 280283d | 2014-08-01 15:02:04 +0000 | [diff] [blame] | 12951 | " Scene: %.20g\n, Image depth: %.20g", |
| 12952 | (double) scene++, (double) p->depth); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12953 | |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 12954 | if (p->alpha_trait != UndefinedPixelTrait) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12955 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12956 | " Matte: True"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12957 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12958 | else |
| 12959 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12960 | " Matte: False"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12961 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12962 | if (p->storage_class == PseudoClass) |
| 12963 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12964 | " Storage class: PseudoClass"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12965 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12966 | else |
| 12967 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12968 | " Storage class: DirectClass"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12969 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12970 | if (p->colors) |
| 12971 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 12972 | " Number of colors: %.20g",(double) p->colors); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12973 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12974 | else |
| 12975 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 12976 | " Number of colors: unspecified"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 12977 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12978 | if (mng_info->adjoin == MagickFalse) |
| 12979 | break; |
| 12980 | } |
| 12981 | } |
| 12982 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 12983 | use_global_plte=MagickFalse; |
| 12984 | all_images_are_gray=MagickFalse; |
| 12985 | #ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED |
| 12986 | need_local_plte=MagickTrue; |
| 12987 | #endif |
| 12988 | need_defi=MagickFalse; |
| 12989 | need_matte=MagickFalse; |
| 12990 | mng_info->framing_mode=1; |
| 12991 | mng_info->old_framing_mode=1; |
| 12992 | |
| 12993 | if (write_mng) |
| 12994 | if (image_info->page != (char *) NULL) |
| 12995 | { |
| 12996 | /* |
| 12997 | Determine image bounding box. |
| 12998 | */ |
| 12999 | SetGeometry(image,&mng_info->page); |
| 13000 | (void) ParseMetaGeometry(image_info->page,&mng_info->page.x, |
| 13001 | &mng_info->page.y,&mng_info->page.width,&mng_info->page.height); |
| 13002 | } |
| 13003 | if (write_mng) |
| 13004 | { |
| 13005 | unsigned int |
| 13006 | need_geom; |
| 13007 | |
| 13008 | unsigned short |
| 13009 | red, |
| 13010 | green, |
| 13011 | blue; |
| 13012 | |
| 13013 | mng_info->page=image->page; |
| 13014 | need_geom=MagickTrue; |
| 13015 | if (mng_info->page.width || mng_info->page.height) |
| 13016 | need_geom=MagickFalse; |
| 13017 | /* |
| 13018 | Check all the scenes. |
| 13019 | */ |
| 13020 | initial_delay=image->delay; |
| 13021 | need_iterations=MagickFalse; |
| 13022 | mng_info->equal_chrms=image->chromaticity.red_primary.x != 0.0; |
| 13023 | mng_info->equal_physs=MagickTrue, |
| 13024 | mng_info->equal_gammas=MagickTrue; |
| 13025 | mng_info->equal_srgbs=MagickTrue; |
| 13026 | mng_info->equal_backgrounds=MagickTrue; |
| 13027 | image_count=0; |
| 13028 | #if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ |
| 13029 | defined(PNG_MNG_FEATURES_SUPPORTED) |
| 13030 | all_images_are_gray=MagickTrue; |
| 13031 | mng_info->equal_palettes=MagickFalse; |
| 13032 | need_local_plte=MagickFalse; |
| 13033 | #endif |
| 13034 | for (next_image=image; next_image != (Image *) NULL; ) |
| 13035 | { |
| 13036 | if (need_geom) |
| 13037 | { |
| 13038 | if ((next_image->columns+next_image->page.x) > mng_info->page.width) |
| 13039 | mng_info->page.width=next_image->columns+next_image->page.x; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13040 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13041 | if ((next_image->rows+next_image->page.y) > mng_info->page.height) |
| 13042 | mng_info->page.height=next_image->rows+next_image->page.y; |
| 13043 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13044 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13045 | if (next_image->page.x || next_image->page.y) |
| 13046 | need_defi=MagickTrue; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13047 | |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 13048 | if (next_image->alpha_trait != UndefinedPixelTrait) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13049 | need_matte=MagickTrue; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13050 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13051 | if ((int) next_image->dispose >= BackgroundDispose) |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 13052 | if ((next_image->alpha_trait != UndefinedPixelTrait) || |
cristy | dc2d327 | 2013-02-12 14:00:44 +0000 | [diff] [blame] | 13053 | next_image->page.x || next_image->page.y || |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13054 | ((next_image->columns < mng_info->page.width) && |
| 13055 | (next_image->rows < mng_info->page.height))) |
| 13056 | mng_info->need_fram=MagickTrue; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13057 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13058 | if (next_image->iterations) |
| 13059 | need_iterations=MagickTrue; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13060 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13061 | final_delay=next_image->delay; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13062 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13063 | if (final_delay != initial_delay || final_delay > 1UL* |
| 13064 | next_image->ticks_per_second) |
| 13065 | mng_info->need_fram=1; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13066 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13067 | #if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ |
| 13068 | defined(PNG_MNG_FEATURES_SUPPORTED) |
| 13069 | /* |
| 13070 | check for global palette possibility. |
| 13071 | */ |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 13072 | if (image->alpha_trait != UndefinedPixelTrait) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13073 | need_local_plte=MagickTrue; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13074 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13075 | if (need_local_plte == 0) |
| 13076 | { |
dirk | f1d8548 | 2015-04-06 00:36:00 +0000 | [diff] [blame] | 13077 | if (SetImageGray(image,exception) == MagickFalse) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13078 | all_images_are_gray=MagickFalse; |
| 13079 | mng_info->equal_palettes=PalettesAreEqual(image,next_image); |
| 13080 | if (use_global_plte == 0) |
| 13081 | use_global_plte=mng_info->equal_palettes; |
| 13082 | need_local_plte=!mng_info->equal_palettes; |
| 13083 | } |
| 13084 | #endif |
| 13085 | if (GetNextImageInList(next_image) != (Image *) NULL) |
| 13086 | { |
| 13087 | if (next_image->background_color.red != |
| 13088 | next_image->next->background_color.red || |
| 13089 | next_image->background_color.green != |
| 13090 | next_image->next->background_color.green || |
| 13091 | next_image->background_color.blue != |
| 13092 | next_image->next->background_color.blue) |
| 13093 | mng_info->equal_backgrounds=MagickFalse; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13094 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13095 | if (next_image->gamma != next_image->next->gamma) |
| 13096 | mng_info->equal_gammas=MagickFalse; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13097 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13098 | if (next_image->rendering_intent != |
| 13099 | next_image->next->rendering_intent) |
| 13100 | mng_info->equal_srgbs=MagickFalse; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13101 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13102 | if ((next_image->units != next_image->next->units) || |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 13103 | (next_image->resolution.x != next_image->next->resolution.x) || |
| 13104 | (next_image->resolution.y != next_image->next->resolution.y)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13105 | mng_info->equal_physs=MagickFalse; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13106 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13107 | if (mng_info->equal_chrms) |
| 13108 | { |
| 13109 | if (next_image->chromaticity.red_primary.x != |
| 13110 | next_image->next->chromaticity.red_primary.x || |
| 13111 | next_image->chromaticity.red_primary.y != |
| 13112 | next_image->next->chromaticity.red_primary.y || |
| 13113 | next_image->chromaticity.green_primary.x != |
| 13114 | next_image->next->chromaticity.green_primary.x || |
| 13115 | next_image->chromaticity.green_primary.y != |
| 13116 | next_image->next->chromaticity.green_primary.y || |
| 13117 | next_image->chromaticity.blue_primary.x != |
| 13118 | next_image->next->chromaticity.blue_primary.x || |
| 13119 | next_image->chromaticity.blue_primary.y != |
| 13120 | next_image->next->chromaticity.blue_primary.y || |
| 13121 | next_image->chromaticity.white_point.x != |
| 13122 | next_image->next->chromaticity.white_point.x || |
| 13123 | next_image->chromaticity.white_point.y != |
| 13124 | next_image->next->chromaticity.white_point.y) |
| 13125 | mng_info->equal_chrms=MagickFalse; |
| 13126 | } |
| 13127 | } |
| 13128 | image_count++; |
| 13129 | next_image=GetNextImageInList(next_image); |
| 13130 | } |
| 13131 | if (image_count < 2) |
| 13132 | { |
| 13133 | mng_info->equal_backgrounds=MagickFalse; |
| 13134 | mng_info->equal_chrms=MagickFalse; |
| 13135 | mng_info->equal_gammas=MagickFalse; |
| 13136 | mng_info->equal_srgbs=MagickFalse; |
| 13137 | mng_info->equal_physs=MagickFalse; |
| 13138 | use_global_plte=MagickFalse; |
| 13139 | #ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED |
| 13140 | need_local_plte=MagickTrue; |
| 13141 | #endif |
| 13142 | need_iterations=MagickFalse; |
| 13143 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13144 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13145 | if (mng_info->need_fram == MagickFalse) |
| 13146 | { |
| 13147 | /* |
| 13148 | Only certain framing rates 100/n are exactly representable without |
| 13149 | the FRAM chunk but we'll allow some slop in VLC files |
| 13150 | */ |
| 13151 | if (final_delay == 0) |
| 13152 | { |
| 13153 | if (need_iterations != MagickFalse) |
| 13154 | { |
| 13155 | /* |
| 13156 | It's probably a GIF with loop; don't run it *too* fast. |
| 13157 | */ |
glennrp | 0261712 | 2010-07-28 13:07:35 +0000 | [diff] [blame] | 13158 | if (mng_info->adjoin) |
glennrp | d908de4 | 2010-07-28 13:28:27 +0000 | [diff] [blame] | 13159 | { |
| 13160 | final_delay=10; |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 13161 | (void) ThrowMagickException(exception,GetMagickModule(), |
| 13162 | CoderWarning, |
glennrp | d908de4 | 2010-07-28 13:28:27 +0000 | [diff] [blame] | 13163 | "input has zero delay between all frames; assuming", |
| 13164 | " 10 cs `%s'",""); |
| 13165 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13166 | } |
| 13167 | else |
| 13168 | mng_info->ticks_per_second=0; |
| 13169 | } |
| 13170 | if (final_delay != 0) |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 13171 | mng_info->ticks_per_second=(png_uint_32) |
| 13172 | (image->ticks_per_second/final_delay); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13173 | if (final_delay > 50) |
| 13174 | mng_info->ticks_per_second=2; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13175 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13176 | if (final_delay > 75) |
| 13177 | mng_info->ticks_per_second=1; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13178 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13179 | if (final_delay > 125) |
| 13180 | mng_info->need_fram=MagickTrue; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13181 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13182 | if (need_defi && final_delay > 2 && (final_delay != 4) && |
| 13183 | (final_delay != 5) && (final_delay != 10) && (final_delay != 20) && |
cristy | b9d46a1 | 2015-06-08 22:29:45 +0000 | [diff] [blame] | 13184 | (final_delay != 25) && (final_delay != 50) && |
dirk | 0bf2143 | 2015-06-22 11:13:20 +0000 | [diff] [blame] | 13185 | (final_delay != (size_t) image->ticks_per_second)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13186 | mng_info->need_fram=MagickTrue; /* make it exact; cannot be VLC */ |
| 13187 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13188 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13189 | if (mng_info->need_fram != MagickFalse) |
cristy | b9d46a1 | 2015-06-08 22:29:45 +0000 | [diff] [blame] | 13190 | mng_info->ticks_per_second=image->ticks_per_second; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13191 | /* |
| 13192 | If pseudocolor, we should also check to see if all the |
| 13193 | palettes are identical and write a global PLTE if they are. |
| 13194 | ../glennrp Feb 99. |
| 13195 | */ |
| 13196 | /* |
| 13197 | Write the MNG version 1.0 signature and MHDR chunk. |
| 13198 | */ |
| 13199 | (void) WriteBlob(image,8,(const unsigned char *) "\212MNG\r\n\032\n"); |
| 13200 | (void) WriteBlobMSBULong(image,28L); /* chunk data length=28 */ |
| 13201 | PNGType(chunk,mng_MHDR); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 13202 | LogPNGChunk(logging,mng_MHDR,28L); |
cristy | 4e5bc84 | 2010-06-09 13:56:01 +0000 | [diff] [blame] | 13203 | PNGLong(chunk+4,(png_uint_32) mng_info->page.width); |
| 13204 | PNGLong(chunk+8,(png_uint_32) mng_info->page.height); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13205 | PNGLong(chunk+12,mng_info->ticks_per_second); |
| 13206 | PNGLong(chunk+16,0L); /* layer count=unknown */ |
| 13207 | PNGLong(chunk+20,0L); /* frame count=unknown */ |
| 13208 | PNGLong(chunk+24,0L); /* play time=unknown */ |
| 13209 | if (write_jng) |
| 13210 | { |
| 13211 | if (need_matte) |
| 13212 | { |
| 13213 | if (need_defi || mng_info->need_fram || use_global_plte) |
| 13214 | PNGLong(chunk+28,27L); /* simplicity=LC+JNG */ |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13215 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13216 | else |
| 13217 | PNGLong(chunk+28,25L); /* simplicity=VLC+JNG */ |
| 13218 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13219 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13220 | else |
| 13221 | { |
| 13222 | if (need_defi || mng_info->need_fram || use_global_plte) |
| 13223 | PNGLong(chunk+28,19L); /* simplicity=LC+JNG, no transparency */ |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13224 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13225 | else |
| 13226 | PNGLong(chunk+28,17L); /* simplicity=VLC+JNG, no transparency */ |
| 13227 | } |
| 13228 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13229 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13230 | else |
| 13231 | { |
| 13232 | if (need_matte) |
| 13233 | { |
| 13234 | if (need_defi || mng_info->need_fram || use_global_plte) |
| 13235 | PNGLong(chunk+28,11L); /* simplicity=LC */ |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13236 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13237 | else |
| 13238 | PNGLong(chunk+28,9L); /* simplicity=VLC */ |
| 13239 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13240 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13241 | else |
| 13242 | { |
| 13243 | if (need_defi || mng_info->need_fram || use_global_plte) |
| 13244 | PNGLong(chunk+28,3L); /* simplicity=LC, no transparency */ |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13245 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13246 | else |
| 13247 | PNGLong(chunk+28,1L); /* simplicity=VLC, no transparency */ |
| 13248 | } |
| 13249 | } |
| 13250 | (void) WriteBlob(image,32,chunk); |
| 13251 | (void) WriteBlobMSBULong(image,crc32(0,chunk,32)); |
cristy | 092ec8d | 2013-04-26 13:46:22 +0000 | [diff] [blame] | 13252 | option=GetImageOption(image_info,"mng:need-cacheoff"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13253 | if (option != (const char *) NULL) |
| 13254 | { |
| 13255 | size_t |
| 13256 | length; |
| 13257 | |
| 13258 | /* |
| 13259 | Write "nEED CACHEOFF" to turn playback caching off for streaming MNG. |
| 13260 | */ |
| 13261 | PNGType(chunk,mng_nEED); |
| 13262 | length=CopyMagickString((char *) chunk+4,"CACHEOFF",20); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 13263 | (void) WriteBlobMSBULong(image,(size_t) length); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 13264 | LogPNGChunk(logging,mng_nEED,(size_t) length); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13265 | length+=4; |
| 13266 | (void) WriteBlob(image,length,chunk); |
| 13267 | (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) length)); |
| 13268 | } |
| 13269 | if ((GetPreviousImageInList(image) == (Image *) NULL) && |
| 13270 | (GetNextImageInList(image) != (Image *) NULL) && |
| 13271 | (image->iterations != 1)) |
| 13272 | { |
| 13273 | /* |
| 13274 | Write MNG TERM chunk |
| 13275 | */ |
| 13276 | (void) WriteBlobMSBULong(image,10L); /* data length=10 */ |
| 13277 | PNGType(chunk,mng_TERM); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 13278 | LogPNGChunk(logging,mng_TERM,10L); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13279 | chunk[4]=3; /* repeat animation */ |
| 13280 | chunk[5]=0; /* show last frame when done */ |
| 13281 | PNGLong(chunk+6,(png_uint_32) (mng_info->ticks_per_second* |
| 13282 | final_delay/MagickMax(image->ticks_per_second,1))); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13283 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13284 | if (image->iterations == 0) |
| 13285 | PNGLong(chunk+10,PNG_UINT_31_MAX); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13286 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13287 | else |
| 13288 | PNGLong(chunk+10,(png_uint_32) image->iterations); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13289 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13290 | if (logging != MagickFalse) |
| 13291 | { |
| 13292 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 13293 | " TERM delay: %.20g",(double) (mng_info->ticks_per_second* |
| 13294 | final_delay/MagickMax(image->ticks_per_second,1))); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13295 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13296 | if (image->iterations == 0) |
| 13297 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 13298 | " TERM iterations: %.20g",(double) PNG_UINT_31_MAX); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13299 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13300 | else |
| 13301 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 13302 | " Image iterations: %.20g",(double) image->iterations); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13303 | } |
| 13304 | (void) WriteBlob(image,14,chunk); |
| 13305 | (void) WriteBlobMSBULong(image,crc32(0,chunk,14)); |
| 13306 | } |
| 13307 | /* |
| 13308 | To do: check for cHRM+gAMA == sRGB, and write sRGB instead. |
| 13309 | */ |
| 13310 | if ((image->colorspace == sRGBColorspace || image->rendering_intent) && |
| 13311 | mng_info->equal_srgbs) |
| 13312 | { |
| 13313 | /* |
| 13314 | Write MNG sRGB chunk |
| 13315 | */ |
| 13316 | (void) WriteBlobMSBULong(image,1L); |
| 13317 | PNGType(chunk,mng_sRGB); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 13318 | LogPNGChunk(logging,mng_sRGB,1L); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13319 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13320 | if (image->rendering_intent != UndefinedIntent) |
glennrp | e610a07 | 2010-08-05 17:08:46 +0000 | [diff] [blame] | 13321 | chunk[4]=(unsigned char) |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 13322 | Magick_RenderingIntent_to_PNG_RenderingIntent( |
glennrp | e610a07 | 2010-08-05 17:08:46 +0000 | [diff] [blame] | 13323 | (image->rendering_intent)); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13324 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13325 | else |
glennrp | e610a07 | 2010-08-05 17:08:46 +0000 | [diff] [blame] | 13326 | chunk[4]=(unsigned char) |
glennrp | cf00202 | 2011-01-30 02:38:15 +0000 | [diff] [blame] | 13327 | Magick_RenderingIntent_to_PNG_RenderingIntent( |
| 13328 | (PerceptualIntent)); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13329 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13330 | (void) WriteBlob(image,5,chunk); |
| 13331 | (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); |
| 13332 | mng_info->have_write_global_srgb=MagickTrue; |
| 13333 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13334 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13335 | else |
| 13336 | { |
| 13337 | if (image->gamma && mng_info->equal_gammas) |
| 13338 | { |
| 13339 | /* |
| 13340 | Write MNG gAMA chunk |
| 13341 | */ |
| 13342 | (void) WriteBlobMSBULong(image,4L); |
| 13343 | PNGType(chunk,mng_gAMA); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 13344 | LogPNGChunk(logging,mng_gAMA,4L); |
cristy | 35ef824 | 2010-06-03 16:24:13 +0000 | [diff] [blame] | 13345 | PNGLong(chunk+4,(png_uint_32) (100000*image->gamma+0.5)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13346 | (void) WriteBlob(image,8,chunk); |
| 13347 | (void) WriteBlobMSBULong(image,crc32(0,chunk,8)); |
| 13348 | mng_info->have_write_global_gama=MagickTrue; |
| 13349 | } |
| 13350 | if (mng_info->equal_chrms) |
| 13351 | { |
| 13352 | PrimaryInfo |
| 13353 | primary; |
| 13354 | |
| 13355 | /* |
| 13356 | Write MNG cHRM chunk |
| 13357 | */ |
| 13358 | (void) WriteBlobMSBULong(image,32L); |
| 13359 | PNGType(chunk,mng_cHRM); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 13360 | LogPNGChunk(logging,mng_cHRM,32L); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13361 | primary=image->chromaticity.white_point; |
cristy | 35ef824 | 2010-06-03 16:24:13 +0000 | [diff] [blame] | 13362 | PNGLong(chunk+4,(png_uint_32) (100000*primary.x+0.5)); |
| 13363 | PNGLong(chunk+8,(png_uint_32) (100000*primary.y+0.5)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13364 | primary=image->chromaticity.red_primary; |
cristy | 35ef824 | 2010-06-03 16:24:13 +0000 | [diff] [blame] | 13365 | PNGLong(chunk+12,(png_uint_32) (100000*primary.x+0.5)); |
| 13366 | PNGLong(chunk+16,(png_uint_32) (100000*primary.y+0.5)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13367 | primary=image->chromaticity.green_primary; |
cristy | 35ef824 | 2010-06-03 16:24:13 +0000 | [diff] [blame] | 13368 | PNGLong(chunk+20,(png_uint_32) (100000*primary.x+0.5)); |
| 13369 | PNGLong(chunk+24,(png_uint_32) (100000*primary.y+0.5)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13370 | primary=image->chromaticity.blue_primary; |
cristy | 35ef824 | 2010-06-03 16:24:13 +0000 | [diff] [blame] | 13371 | PNGLong(chunk+28,(png_uint_32) (100000*primary.x+0.5)); |
| 13372 | PNGLong(chunk+32,(png_uint_32) (100000*primary.y+0.5)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13373 | (void) WriteBlob(image,36,chunk); |
| 13374 | (void) WriteBlobMSBULong(image,crc32(0,chunk,36)); |
| 13375 | mng_info->have_write_global_chrm=MagickTrue; |
| 13376 | } |
| 13377 | } |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 13378 | if (image->resolution.x && image->resolution.y && mng_info->equal_physs) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13379 | { |
| 13380 | /* |
| 13381 | Write MNG pHYs chunk |
| 13382 | */ |
| 13383 | (void) WriteBlobMSBULong(image,9L); |
| 13384 | PNGType(chunk,mng_pHYs); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 13385 | LogPNGChunk(logging,mng_pHYs,9L); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13386 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13387 | if (image->units == PixelsPerInchResolution) |
| 13388 | { |
cristy | 35ef824 | 2010-06-03 16:24:13 +0000 | [diff] [blame] | 13389 | PNGLong(chunk+4,(png_uint_32) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 13390 | (image->resolution.x*100.0/2.54+0.5)); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13391 | |
cristy | 35ef824 | 2010-06-03 16:24:13 +0000 | [diff] [blame] | 13392 | PNGLong(chunk+8,(png_uint_32) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 13393 | (image->resolution.y*100.0/2.54+0.5)); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13394 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13395 | chunk[12]=1; |
| 13396 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13397 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13398 | else |
| 13399 | { |
| 13400 | if (image->units == PixelsPerCentimeterResolution) |
| 13401 | { |
cristy | 35ef824 | 2010-06-03 16:24:13 +0000 | [diff] [blame] | 13402 | PNGLong(chunk+4,(png_uint_32) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 13403 | (image->resolution.x*100.0+0.5)); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13404 | |
cristy | 35ef824 | 2010-06-03 16:24:13 +0000 | [diff] [blame] | 13405 | PNGLong(chunk+8,(png_uint_32) |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 13406 | (image->resolution.y*100.0+0.5)); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13407 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13408 | chunk[12]=1; |
| 13409 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13410 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13411 | else |
| 13412 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 13413 | PNGLong(chunk+4,(png_uint_32) (image->resolution.x+0.5)); |
| 13414 | PNGLong(chunk+8,(png_uint_32) (image->resolution.y+0.5)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13415 | chunk[12]=0; |
| 13416 | } |
| 13417 | } |
| 13418 | (void) WriteBlob(image,13,chunk); |
| 13419 | (void) WriteBlobMSBULong(image,crc32(0,chunk,13)); |
| 13420 | } |
| 13421 | /* |
| 13422 | Write MNG BACK chunk and global bKGD chunk, if the image is transparent |
| 13423 | or does not cover the entire frame. |
| 13424 | */ |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 13425 | if (write_mng && ((image->alpha_trait != UndefinedPixelTrait) || |
cristy | dc2d327 | 2013-02-12 14:00:44 +0000 | [diff] [blame] | 13426 | image->page.x > 0 || image->page.y > 0 || (image->page.width && |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13427 | (image->page.width+image->page.x < mng_info->page.width)) |
| 13428 | || (image->page.height && (image->page.height+image->page.y |
| 13429 | < mng_info->page.height)))) |
| 13430 | { |
| 13431 | (void) WriteBlobMSBULong(image,6L); |
| 13432 | PNGType(chunk,mng_BACK); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 13433 | LogPNGChunk(logging,mng_BACK,6L); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13434 | red=ScaleQuantumToShort(image->background_color.red); |
| 13435 | green=ScaleQuantumToShort(image->background_color.green); |
| 13436 | blue=ScaleQuantumToShort(image->background_color.blue); |
| 13437 | PNGShort(chunk+4,red); |
| 13438 | PNGShort(chunk+6,green); |
| 13439 | PNGShort(chunk+8,blue); |
| 13440 | (void) WriteBlob(image,10,chunk); |
| 13441 | (void) WriteBlobMSBULong(image,crc32(0,chunk,10)); |
| 13442 | if (mng_info->equal_backgrounds) |
| 13443 | { |
| 13444 | (void) WriteBlobMSBULong(image,6L); |
| 13445 | PNGType(chunk,mng_bKGD); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 13446 | LogPNGChunk(logging,mng_bKGD,6L); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13447 | (void) WriteBlob(image,10,chunk); |
| 13448 | (void) WriteBlobMSBULong(image,crc32(0,chunk,10)); |
| 13449 | } |
| 13450 | } |
| 13451 | |
| 13452 | #ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED |
| 13453 | if ((need_local_plte == MagickFalse) && |
| 13454 | (image->storage_class == PseudoClass) && |
| 13455 | (all_images_are_gray == MagickFalse)) |
| 13456 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 13457 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13458 | data_length; |
| 13459 | |
| 13460 | /* |
| 13461 | Write MNG PLTE chunk |
| 13462 | */ |
| 13463 | data_length=3*image->colors; |
| 13464 | (void) WriteBlobMSBULong(image,data_length); |
| 13465 | PNGType(chunk,mng_PLTE); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 13466 | LogPNGChunk(logging,mng_PLTE,data_length); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13467 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 13468 | for (i=0; i < (ssize_t) image->colors; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13469 | { |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 13470 | chunk[4+i*3]=(unsigned char) (ScaleQuantumToChar( |
| 13471 | image->colormap[i].red) & 0xff); |
| 13472 | chunk[5+i*3]=(unsigned char) (ScaleQuantumToChar( |
| 13473 | image->colormap[i].green) & 0xff); |
| 13474 | chunk[6+i*3]=(unsigned char) (ScaleQuantumToChar( |
| 13475 | image->colormap[i].blue) & 0xff); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13476 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13477 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13478 | (void) WriteBlob(image,data_length+4,chunk); |
| 13479 | (void) WriteBlobMSBULong(image,crc32(0,chunk,(uInt) (data_length+4))); |
| 13480 | mng_info->have_write_global_plte=MagickTrue; |
| 13481 | } |
| 13482 | #endif |
| 13483 | } |
| 13484 | scene=0; |
| 13485 | mng_info->delay=0; |
| 13486 | #if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ |
| 13487 | defined(PNG_MNG_FEATURES_SUPPORTED) |
| 13488 | mng_info->equal_palettes=MagickFalse; |
| 13489 | #endif |
| 13490 | do |
| 13491 | { |
| 13492 | if (mng_info->adjoin) |
| 13493 | { |
| 13494 | #if defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) || \ |
| 13495 | defined(PNG_MNG_FEATURES_SUPPORTED) |
| 13496 | /* |
| 13497 | If we aren't using a global palette for the entire MNG, check to |
| 13498 | see if we can use one for two or more consecutive images. |
| 13499 | */ |
| 13500 | if (need_local_plte && use_global_plte && !all_images_are_gray) |
| 13501 | { |
| 13502 | if (mng_info->IsPalette) |
| 13503 | { |
| 13504 | /* |
| 13505 | When equal_palettes is true, this image has the same palette |
| 13506 | as the previous PseudoClass image |
| 13507 | */ |
| 13508 | mng_info->have_write_global_plte=mng_info->equal_palettes; |
| 13509 | mng_info->equal_palettes=PalettesAreEqual(image,image->next); |
| 13510 | if (mng_info->equal_palettes && !mng_info->have_write_global_plte) |
| 13511 | { |
| 13512 | /* |
| 13513 | Write MNG PLTE chunk |
| 13514 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 13515 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13516 | data_length; |
| 13517 | |
| 13518 | data_length=3*image->colors; |
| 13519 | (void) WriteBlobMSBULong(image,data_length); |
| 13520 | PNGType(chunk,mng_PLTE); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 13521 | LogPNGChunk(logging,mng_PLTE,data_length); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13522 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 13523 | for (i=0; i < (ssize_t) image->colors; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13524 | { |
| 13525 | chunk[4+i*3]=ScaleQuantumToChar(image->colormap[i].red); |
| 13526 | chunk[5+i*3]=ScaleQuantumToChar(image->colormap[i].green); |
| 13527 | chunk[6+i*3]=ScaleQuantumToChar(image->colormap[i].blue); |
| 13528 | } |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13529 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13530 | (void) WriteBlob(image,data_length+4,chunk); |
| 13531 | (void) WriteBlobMSBULong(image,crc32(0,chunk, |
| 13532 | (uInt) (data_length+4))); |
| 13533 | mng_info->have_write_global_plte=MagickTrue; |
| 13534 | } |
| 13535 | } |
| 13536 | else |
| 13537 | mng_info->have_write_global_plte=MagickFalse; |
| 13538 | } |
| 13539 | #endif |
| 13540 | if (need_defi) |
| 13541 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 13542 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13543 | previous_x, |
| 13544 | previous_y; |
| 13545 | |
| 13546 | if (scene) |
| 13547 | { |
| 13548 | previous_x=mng_info->page.x; |
| 13549 | previous_y=mng_info->page.y; |
| 13550 | } |
| 13551 | else |
| 13552 | { |
| 13553 | previous_x=0; |
| 13554 | previous_y=0; |
| 13555 | } |
| 13556 | mng_info->page=image->page; |
| 13557 | if ((mng_info->page.x != previous_x) || |
| 13558 | (mng_info->page.y != previous_y)) |
| 13559 | { |
| 13560 | (void) WriteBlobMSBULong(image,12L); /* data length=12 */ |
| 13561 | PNGType(chunk,mng_DEFI); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 13562 | LogPNGChunk(logging,mng_DEFI,12L); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13563 | chunk[4]=0; /* object 0 MSB */ |
| 13564 | chunk[5]=0; /* object 0 LSB */ |
| 13565 | chunk[6]=0; /* visible */ |
| 13566 | chunk[7]=0; /* abstract */ |
| 13567 | PNGLong(chunk+8,(png_uint_32) mng_info->page.x); |
| 13568 | PNGLong(chunk+12,(png_uint_32) mng_info->page.y); |
| 13569 | (void) WriteBlob(image,16,chunk); |
| 13570 | (void) WriteBlobMSBULong(image,crc32(0,chunk,16)); |
| 13571 | } |
| 13572 | } |
| 13573 | } |
| 13574 | |
| 13575 | mng_info->write_mng=write_mng; |
| 13576 | |
| 13577 | if ((int) image->dispose >= 3) |
| 13578 | mng_info->framing_mode=3; |
| 13579 | |
| 13580 | if (mng_info->need_fram && mng_info->adjoin && |
| 13581 | ((image->delay != mng_info->delay) || |
| 13582 | (mng_info->framing_mode != mng_info->old_framing_mode))) |
| 13583 | { |
| 13584 | if (image->delay == mng_info->delay) |
| 13585 | { |
| 13586 | /* |
| 13587 | Write a MNG FRAM chunk with the new framing mode. |
| 13588 | */ |
| 13589 | (void) WriteBlobMSBULong(image,1L); /* data length=1 */ |
| 13590 | PNGType(chunk,mng_FRAM); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 13591 | LogPNGChunk(logging,mng_FRAM,1L); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13592 | chunk[4]=(unsigned char) mng_info->framing_mode; |
| 13593 | (void) WriteBlob(image,5,chunk); |
| 13594 | (void) WriteBlobMSBULong(image,crc32(0,chunk,5)); |
| 13595 | } |
| 13596 | else |
| 13597 | { |
| 13598 | /* |
| 13599 | Write a MNG FRAM chunk with the delay. |
| 13600 | */ |
| 13601 | (void) WriteBlobMSBULong(image,10L); /* data length=10 */ |
| 13602 | PNGType(chunk,mng_FRAM); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 13603 | LogPNGChunk(logging,mng_FRAM,10L); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13604 | chunk[4]=(unsigned char) mng_info->framing_mode; |
| 13605 | chunk[5]=0; /* frame name separator (no name) */ |
| 13606 | chunk[6]=2; /* flag for changing default delay */ |
| 13607 | chunk[7]=0; /* flag for changing frame timeout */ |
| 13608 | chunk[8]=0; /* flag for changing frame clipping */ |
| 13609 | chunk[9]=0; /* flag for changing frame sync_id */ |
| 13610 | PNGLong(chunk+10,(png_uint_32) |
| 13611 | ((mng_info->ticks_per_second* |
| 13612 | image->delay)/MagickMax(image->ticks_per_second,1))); |
| 13613 | (void) WriteBlob(image,14,chunk); |
| 13614 | (void) WriteBlobMSBULong(image,crc32(0,chunk,14)); |
cristy | 4e5bc84 | 2010-06-09 13:56:01 +0000 | [diff] [blame] | 13615 | mng_info->delay=(png_uint_32) image->delay; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13616 | } |
| 13617 | mng_info->old_framing_mode=mng_info->framing_mode; |
| 13618 | } |
| 13619 | |
| 13620 | #if defined(JNG_SUPPORTED) |
| 13621 | if (image_info->compression == JPEGCompression) |
| 13622 | { |
| 13623 | ImageInfo |
| 13624 | *write_info; |
| 13625 | |
| 13626 | if (logging != MagickFalse) |
| 13627 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 13628 | " Writing JNG object."); |
| 13629 | /* To do: specify the desired alpha compression method. */ |
| 13630 | write_info=CloneImageInfo(image_info); |
| 13631 | write_info->compression=UndefinedCompression; |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 13632 | status=WriteOneJNGImage(mng_info,write_info,image,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13633 | write_info=DestroyImageInfo(write_info); |
| 13634 | } |
| 13635 | else |
| 13636 | #endif |
| 13637 | { |
| 13638 | if (logging != MagickFalse) |
| 13639 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 13640 | " Writing PNG object."); |
glennrp | 2f2e514 | 2010-12-23 19:13:35 +0000 | [diff] [blame] | 13641 | |
glennrp | b9cfe27 | 2010-12-21 15:08:06 +0000 | [diff] [blame] | 13642 | mng_info->need_blob = MagickFalse; |
glennrp | 8d3d6e5 | 2011-04-19 04:39:51 +0000 | [diff] [blame] | 13643 | mng_info->ping_preserve_colormap = MagickFalse; |
glennrp | 2f2e514 | 2010-12-23 19:13:35 +0000 | [diff] [blame] | 13644 | |
| 13645 | /* We don't want any ancillary chunks written */ |
| 13646 | mng_info->ping_exclude_bKGD=MagickTrue; |
| 13647 | mng_info->ping_exclude_cHRM=MagickTrue; |
glennrp | a0ed009 | 2011-04-18 16:36:29 +0000 | [diff] [blame] | 13648 | mng_info->ping_exclude_date=MagickTrue; |
glennrp | 2f2e514 | 2010-12-23 19:13:35 +0000 | [diff] [blame] | 13649 | mng_info->ping_exclude_EXIF=MagickTrue; |
| 13650 | mng_info->ping_exclude_gAMA=MagickTrue; |
glennrp | 2f2e514 | 2010-12-23 19:13:35 +0000 | [diff] [blame] | 13651 | mng_info->ping_exclude_iCCP=MagickTrue; |
| 13652 | /* mng_info->ping_exclude_iTXt=MagickTrue; */ |
| 13653 | mng_info->ping_exclude_oFFs=MagickTrue; |
| 13654 | mng_info->ping_exclude_pHYs=MagickTrue; |
| 13655 | mng_info->ping_exclude_sRGB=MagickTrue; |
| 13656 | mng_info->ping_exclude_tEXt=MagickTrue; |
glennrp | a1e3b7b | 2010-12-24 16:37:33 +0000 | [diff] [blame] | 13657 | mng_info->ping_exclude_tRNS=MagickTrue; |
glennrp | 2f2e514 | 2010-12-23 19:13:35 +0000 | [diff] [blame] | 13658 | mng_info->ping_exclude_vpAg=MagickTrue; |
| 13659 | mng_info->ping_exclude_zCCP=MagickTrue; |
| 13660 | mng_info->ping_exclude_zTXt=MagickTrue; |
| 13661 | |
cristy | 16ea139 | 2012-03-21 20:38:41 +0000 | [diff] [blame] | 13662 | status=WriteOnePNGImage(mng_info,image_info,image,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13663 | } |
| 13664 | |
| 13665 | if (status == MagickFalse) |
| 13666 | { |
| 13667 | MngInfoFreeStruct(mng_info,&have_mng_structure); |
| 13668 | (void) CloseBlob(image); |
| 13669 | return(MagickFalse); |
| 13670 | } |
| 13671 | (void) CatchImageException(image); |
| 13672 | if (GetNextImageInList(image) == (Image *) NULL) |
| 13673 | break; |
| 13674 | image=SyncNextImageInList(image); |
| 13675 | status=SetImageProgress(image,SaveImagesTag,scene++, |
| 13676 | GetImageListLength(image)); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13677 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13678 | if (status == MagickFalse) |
| 13679 | break; |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13680 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13681 | } while (mng_info->adjoin); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13682 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13683 | if (write_mng) |
| 13684 | { |
| 13685 | while (GetPreviousImageInList(image) != (Image *) NULL) |
| 13686 | image=GetPreviousImageInList(image); |
| 13687 | /* |
| 13688 | Write the MEND chunk. |
| 13689 | */ |
| 13690 | (void) WriteBlobMSBULong(image,0x00000000L); |
| 13691 | PNGType(chunk,mng_MEND); |
glennrp | 03812ae | 2010-12-24 01:31:34 +0000 | [diff] [blame] | 13692 | LogPNGChunk(logging,mng_MEND,0L); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13693 | (void) WriteBlob(image,4,chunk); |
| 13694 | (void) WriteBlobMSBULong(image,crc32(0,chunk,4)); |
| 13695 | } |
| 13696 | /* |
| 13697 | Relinquish resources. |
| 13698 | */ |
| 13699 | (void) CloseBlob(image); |
| 13700 | MngInfoFreeStruct(mng_info,&have_mng_structure); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13701 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13702 | if (logging != MagickFalse) |
| 13703 | (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WriteMNGImage()"); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13704 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13705 | return(MagickTrue); |
| 13706 | } |
glennrp | d5045b4 | 2010-03-24 12:40:35 +0000 | [diff] [blame] | 13707 | #else /* PNG_LIBPNG_VER > 10011 */ |
glennrp | 39992b4 | 2010-11-14 00:03:43 +0000 | [diff] [blame] | 13708 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13709 | static MagickBooleanType WritePNGImage(const ImageInfo *image_info,Image *image) |
| 13710 | { |
glennrp | 3bd393f | 2011-12-21 18:54:53 +0000 | [diff] [blame] | 13711 | (void) image; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13712 | printf("Your PNG library is too old: You have libpng-%s\n", |
| 13713 | PNG_LIBPNG_VER_STRING); |
glennrp | 0fe50b4 | 2010-11-16 03:52:51 +0000 | [diff] [blame] | 13714 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13715 | ThrowBinaryException(CoderError,"PNG library is too old", |
| 13716 | image_info->filename); |
| 13717 | } |
glennrp | 39992b4 | 2010-11-14 00:03:43 +0000 | [diff] [blame] | 13718 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13719 | static MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image) |
| 13720 | { |
| 13721 | return(WritePNGImage(image_info,image)); |
| 13722 | } |
glennrp | d5045b4 | 2010-03-24 12:40:35 +0000 | [diff] [blame] | 13723 | #endif /* PNG_LIBPNG_VER > 10011 */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 13724 | #endif |