cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1 | /* |
| 2 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3 | % % |
| 4 | % % |
| 5 | % % |
| 6 | % BBBB M M PPPP % |
| 7 | % B B MM MM P P % |
| 8 | % BBBB M M M PPPP % |
| 9 | % B B M M P % |
| 10 | % BBBB M M P % |
| 11 | % % |
| 12 | % % |
| 13 | % Read/Write Microsoft Windows Bitmap 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 | % December 2001 % |
| 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 | Include declarations. |
| 42 | */ |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 43 | #include "MagickCore/studio.h" |
| 44 | #include "MagickCore/blob.h" |
| 45 | #include "MagickCore/blob-private.h" |
| 46 | #include "MagickCore/cache.h" |
| 47 | #include "MagickCore/colormap-private.h" |
| 48 | #include "MagickCore/color-private.h" |
| 49 | #include "MagickCore/colormap.h" |
| 50 | #include "MagickCore/colorspace.h" |
cristy | 510d06a | 2011-07-06 23:43:54 +0000 | [diff] [blame] | 51 | #include "MagickCore/colorspace-private.h" |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 52 | #include "MagickCore/exception.h" |
| 53 | #include "MagickCore/exception-private.h" |
| 54 | #include "MagickCore/image.h" |
| 55 | #include "MagickCore/image-private.h" |
| 56 | #include "MagickCore/list.h" |
| 57 | #include "MagickCore/log.h" |
| 58 | #include "MagickCore/magick.h" |
| 59 | #include "MagickCore/memory_.h" |
| 60 | #include "MagickCore/monitor.h" |
| 61 | #include "MagickCore/monitor-private.h" |
cristy | e462ed7 | 2013-08-13 12:20:40 +0000 | [diff] [blame] | 62 | #include "MagickCore/option.h" |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 63 | #include "MagickCore/pixel-accessor.h" |
| 64 | #include "MagickCore/profile.h" |
| 65 | #include "MagickCore/quantum-private.h" |
| 66 | #include "MagickCore/static.h" |
| 67 | #include "MagickCore/string_.h" |
| 68 | #include "MagickCore/module.h" |
| 69 | #include "MagickCore/transform.h" |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 70 | |
| 71 | /* |
| 72 | Macro definitions (from Windows wingdi.h). |
| 73 | */ |
| 74 | #undef BI_JPEG |
| 75 | #define BI_JPEG 4 |
| 76 | #undef BI_PNG |
| 77 | #define BI_PNG 5 |
cristy | 07a3cca | 2012-12-10 13:09:10 +0000 | [diff] [blame] | 78 | #if !defined(MAGICKCORE_WINDOWS_SUPPORT) || defined(__MINGW32__) || defined(__MINGW64__) |
cristy | 3a99dcf | 2011-12-17 01:29:40 +0000 | [diff] [blame] | 79 | #undef BI_RGB |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 80 | #define BI_RGB 0 |
cristy | 3a99dcf | 2011-12-17 01:29:40 +0000 | [diff] [blame] | 81 | #undef BI_RLE8 |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 82 | #define BI_RLE8 1 |
cristy | 3a99dcf | 2011-12-17 01:29:40 +0000 | [diff] [blame] | 83 | #undef BI_RLE4 |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 84 | #define BI_RLE4 2 |
cristy | 3a99dcf | 2011-12-17 01:29:40 +0000 | [diff] [blame] | 85 | #undef BI_BITFIELDS |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 86 | #define BI_BITFIELDS 3 |
| 87 | |
cristy | 3a99dcf | 2011-12-17 01:29:40 +0000 | [diff] [blame] | 88 | #undef LCS_CALIBRATED_RBG |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 89 | #define LCS_CALIBRATED_RBG 0 |
cristy | 3a99dcf | 2011-12-17 01:29:40 +0000 | [diff] [blame] | 90 | #undef LCS_sRGB |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 91 | #define LCS_sRGB 1 |
cristy | 3a99dcf | 2011-12-17 01:29:40 +0000 | [diff] [blame] | 92 | #undef LCS_WINDOWS_COLOR_SPACE |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 93 | #define LCS_WINDOWS_COLOR_SPACE 2 |
cristy | 3a99dcf | 2011-12-17 01:29:40 +0000 | [diff] [blame] | 94 | #undef PROFILE_LINKED |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 95 | #define PROFILE_LINKED 3 |
cristy | 3a99dcf | 2011-12-17 01:29:40 +0000 | [diff] [blame] | 96 | #undef PROFILE_EMBEDDED |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 97 | #define PROFILE_EMBEDDED 4 |
| 98 | |
cristy | 3a99dcf | 2011-12-17 01:29:40 +0000 | [diff] [blame] | 99 | #undef LCS_GM_BUSINESS |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 100 | #define LCS_GM_BUSINESS 1 /* Saturation */ |
cristy | 3a99dcf | 2011-12-17 01:29:40 +0000 | [diff] [blame] | 101 | #undef LCS_GM_GRAPHICS |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 102 | #define LCS_GM_GRAPHICS 2 /* Relative */ |
cristy | 3a99dcf | 2011-12-17 01:29:40 +0000 | [diff] [blame] | 103 | #undef LCS_GM_IMAGES |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 104 | #define LCS_GM_IMAGES 4 /* Perceptual */ |
cristy | 3a99dcf | 2011-12-17 01:29:40 +0000 | [diff] [blame] | 105 | #undef LCS_GM_ABS_COLORIMETRIC |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 106 | #define LCS_GM_ABS_COLORIMETRIC 8 /* Absolute */ |
| 107 | #endif |
| 108 | |
| 109 | /* |
| 110 | Typedef declarations. |
| 111 | */ |
| 112 | typedef struct _BMPInfo |
| 113 | { |
cristy | df40958 | 2015-06-12 16:35:04 +0000 | [diff] [blame] | 114 | unsigned long |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 115 | file_size, |
| 116 | ba_offset, |
| 117 | offset_bits, |
| 118 | size; |
| 119 | |
cristy | 7c242ea | 2013-06-21 17:19:53 +0000 | [diff] [blame] | 120 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 121 | width, |
| 122 | height; |
| 123 | |
| 124 | unsigned short |
| 125 | planes, |
| 126 | bits_per_pixel; |
| 127 | |
cristy | df40958 | 2015-06-12 16:35:04 +0000 | [diff] [blame] | 128 | unsigned long |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 129 | compression, |
| 130 | image_size, |
| 131 | x_pixels, |
| 132 | y_pixels, |
| 133 | number_colors, |
| 134 | red_mask, |
| 135 | green_mask, |
| 136 | blue_mask, |
| 137 | alpha_mask, |
| 138 | colors_important; |
| 139 | |
cristy | df40958 | 2015-06-12 16:35:04 +0000 | [diff] [blame] | 140 | long |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 141 | colorspace; |
| 142 | |
| 143 | PrimaryInfo |
| 144 | red_primary, |
| 145 | green_primary, |
| 146 | blue_primary, |
| 147 | gamma_scale; |
| 148 | } BMPInfo; |
| 149 | |
| 150 | /* |
| 151 | Forward declarations. |
| 152 | */ |
| 153 | static MagickBooleanType |
cristy | 1e178e7 | 2011-08-28 19:44:34 +0000 | [diff] [blame] | 154 | WriteBMPImage(const ImageInfo *,Image *,ExceptionInfo *); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 155 | |
| 156 | /* |
| 157 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 158 | % % |
| 159 | % % |
| 160 | % % |
| 161 | % D e c o d e I m a g e % |
| 162 | % % |
| 163 | % % |
| 164 | % % |
| 165 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 166 | % |
| 167 | % DecodeImage unpacks the packed image pixels into runlength-encoded |
| 168 | % pixel packets. |
| 169 | % |
| 170 | % The format of the DecodeImage method is: |
| 171 | % |
| 172 | % MagickBooleanType DecodeImage(Image *image, |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 173 | % const size_t compression,unsigned char *pixels) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 174 | % |
| 175 | % A description of each parameter follows: |
| 176 | % |
| 177 | % o image: the address of a structure of type Image. |
| 178 | % |
| 179 | % o compression: Zero means uncompressed. A value of 1 means the |
| 180 | % compressed pixels are runlength encoded for a 256-color bitmap. |
| 181 | % A value of 2 means a 16-color bitmap. A value of 3 means bitfields |
| 182 | % encoding. |
| 183 | % |
| 184 | % o pixels: The address of a byte (8 bits) array of pixel data created by |
| 185 | % the decoding process. |
| 186 | % |
| 187 | */ |
cristy | 4e82e51 | 2011-04-24 01:33:42 +0000 | [diff] [blame] | 188 | static MagickBooleanType DecodeImage(Image *image,const size_t compression, |
| 189 | unsigned char *pixels) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 190 | { |
cristy | 32e04a3 | 2013-06-16 00:48:49 +0000 | [diff] [blame] | 191 | int |
| 192 | count; |
| 193 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 194 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 195 | i, |
| 196 | x; |
| 197 | |
| 198 | register unsigned char |
| 199 | *p, |
| 200 | *q; |
| 201 | |
cristy | 4e82e51 | 2011-04-24 01:33:42 +0000 | [diff] [blame] | 202 | ssize_t |
| 203 | y; |
| 204 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 205 | unsigned char |
| 206 | byte; |
| 207 | |
| 208 | assert(image != (Image *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 209 | assert(image->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 210 | if (image->debug != MagickFalse) |
| 211 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 212 | assert(pixels != (unsigned char *) NULL); |
| 213 | (void) ResetMagickMemory(pixels,0,(size_t) image->columns*image->rows* |
| 214 | sizeof(*pixels)); |
| 215 | byte=0; |
| 216 | x=0; |
| 217 | p=pixels; |
| 218 | q=pixels+(size_t) image->columns*image->rows; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 219 | for (y=0; y < (ssize_t) image->rows; ) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 220 | { |
cristy | 311dbd7 | 2015-02-26 23:05:17 +0000 | [diff] [blame] | 221 | MagickBooleanType |
| 222 | status; |
| 223 | |
| 224 | if ((p < pixels) || (p > q)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 225 | break; |
cristy | 32e04a3 | 2013-06-16 00:48:49 +0000 | [diff] [blame] | 226 | count=ReadBlobByte(image); |
| 227 | if (count == EOF) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 228 | break; |
| 229 | if (count != 0) |
| 230 | { |
| 231 | /* |
| 232 | Encoded mode. |
| 233 | */ |
cristy | a321eb7 | 2013-06-23 10:42:37 +0000 | [diff] [blame] | 234 | count=(int) MagickMin((ssize_t) count,(ssize_t) (q-p)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 235 | byte=(unsigned char) ReadBlobByte(image); |
| 236 | if (compression == BI_RLE8) |
| 237 | { |
cristy | a321eb7 | 2013-06-23 10:42:37 +0000 | [diff] [blame] | 238 | for (i=0; i < (ssize_t) count; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 239 | *p++=(unsigned char) byte; |
| 240 | } |
| 241 | else |
| 242 | { |
cristy | a321eb7 | 2013-06-23 10:42:37 +0000 | [diff] [blame] | 243 | for (i=0; i < (ssize_t) count; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 244 | *p++=(unsigned char) |
| 245 | ((i & 0x01) != 0 ? (byte & 0x0f) : ((byte >> 4) & 0x0f)); |
| 246 | } |
| 247 | x+=count; |
| 248 | } |
| 249 | else |
| 250 | { |
| 251 | /* |
| 252 | Escape mode. |
| 253 | */ |
cristy | 32e04a3 | 2013-06-16 00:48:49 +0000 | [diff] [blame] | 254 | count=ReadBlobByte(image); |
cristy | 311dbd7 | 2015-02-26 23:05:17 +0000 | [diff] [blame] | 255 | if (count == EOF) |
| 256 | break; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 257 | if (count == 0x01) |
| 258 | return(MagickTrue); |
| 259 | switch (count) |
| 260 | { |
| 261 | case 0x00: |
| 262 | { |
| 263 | /* |
| 264 | End of line. |
| 265 | */ |
| 266 | x=0; |
| 267 | y++; |
| 268 | p=pixels+y*image->columns; |
| 269 | break; |
| 270 | } |
| 271 | case 0x02: |
| 272 | { |
| 273 | /* |
| 274 | Delta mode. |
| 275 | */ |
| 276 | x+=ReadBlobByte(image); |
| 277 | y+=ReadBlobByte(image); |
| 278 | p=pixels+y*image->columns+x; |
| 279 | break; |
| 280 | } |
| 281 | default: |
| 282 | { |
| 283 | /* |
| 284 | Absolute mode. |
| 285 | */ |
cristy | a321eb7 | 2013-06-23 10:42:37 +0000 | [diff] [blame] | 286 | count=(int) MagickMin((ssize_t) count,(ssize_t) (q-p)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 287 | if (compression == BI_RLE8) |
cristy | a321eb7 | 2013-06-23 10:42:37 +0000 | [diff] [blame] | 288 | for (i=0; i < (ssize_t) count; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 289 | *p++=(unsigned char) ReadBlobByte(image); |
| 290 | else |
cristy | a321eb7 | 2013-06-23 10:42:37 +0000 | [diff] [blame] | 291 | for (i=0; i < (ssize_t) count; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 292 | { |
| 293 | if ((i & 0x01) == 0) |
| 294 | byte=(unsigned char) ReadBlobByte(image); |
| 295 | *p++=(unsigned char) |
| 296 | ((i & 0x01) != 0 ? (byte & 0x0f) : ((byte >> 4) & 0x0f)); |
| 297 | } |
| 298 | x+=count; |
| 299 | /* |
| 300 | Read pad byte. |
| 301 | */ |
| 302 | if (compression == BI_RLE8) |
| 303 | { |
| 304 | if ((count & 0x01) != 0) |
| 305 | (void) ReadBlobByte(image); |
| 306 | } |
| 307 | else |
| 308 | if (((count & 0x03) == 1) || ((count & 0x03) == 2)) |
| 309 | (void) ReadBlobByte(image); |
| 310 | break; |
| 311 | } |
| 312 | } |
| 313 | } |
cristy | 311dbd7 | 2015-02-26 23:05:17 +0000 | [diff] [blame] | 314 | status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y, |
| 315 | image->rows); |
| 316 | if (status == MagickFalse) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 317 | break; |
| 318 | } |
| 319 | (void) ReadBlobByte(image); /* end of line */ |
| 320 | (void) ReadBlobByte(image); |
cristy | 311dbd7 | 2015-02-26 23:05:17 +0000 | [diff] [blame] | 321 | return(y < (ssize_t) image->rows ? MagickFalse : MagickTrue); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 322 | } |
| 323 | |
| 324 | /* |
| 325 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 326 | % % |
| 327 | % % |
| 328 | % % |
| 329 | % E n c o d e I m a g e % |
| 330 | % % |
| 331 | % % |
| 332 | % % |
| 333 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 334 | % |
| 335 | % EncodeImage compresses pixels using a runlength encoded format. |
| 336 | % |
| 337 | % The format of the EncodeImage method is: |
| 338 | % |
| 339 | % static MagickBooleanType EncodeImage(Image *image, |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 340 | % const size_t bytes_per_line,const unsigned char *pixels, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 341 | % unsigned char *compressed_pixels) |
| 342 | % |
| 343 | % A description of each parameter follows: |
| 344 | % |
| 345 | % o image: The image. |
| 346 | % |
| 347 | % o bytes_per_line: the number of bytes in a scanline of compressed pixels |
| 348 | % |
| 349 | % o pixels: The address of a byte (8 bits) array of pixel data created by |
| 350 | % the compression process. |
| 351 | % |
| 352 | % o compressed_pixels: The address of a byte (8 bits) array of compressed |
| 353 | % pixel data. |
| 354 | % |
| 355 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 356 | static size_t EncodeImage(Image *image,const size_t bytes_per_line, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 357 | const unsigned char *pixels,unsigned char *compressed_pixels) |
| 358 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 359 | MagickBooleanType |
| 360 | status; |
| 361 | |
| 362 | register const unsigned char |
| 363 | *p; |
| 364 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 365 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 366 | i, |
| 367 | x; |
| 368 | |
| 369 | register unsigned char |
| 370 | *q; |
| 371 | |
cristy | 4e82e51 | 2011-04-24 01:33:42 +0000 | [diff] [blame] | 372 | ssize_t |
| 373 | y; |
| 374 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 375 | /* |
| 376 | Runlength encode pixels. |
| 377 | */ |
| 378 | assert(image != (Image *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 379 | assert(image->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 380 | if (image->debug != MagickFalse) |
| 381 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 382 | assert(pixels != (const unsigned char *) NULL); |
| 383 | assert(compressed_pixels != (unsigned char *) NULL); |
| 384 | p=pixels; |
| 385 | q=compressed_pixels; |
| 386 | i=0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 387 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 388 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 389 | for (x=0; x < (ssize_t) bytes_per_line; x+=i) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 390 | { |
| 391 | /* |
| 392 | Determine runlength. |
| 393 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 394 | for (i=1; ((x+i) < (ssize_t) bytes_per_line); i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 395 | if ((i == 255) || (*(p+i) != *p)) |
| 396 | break; |
| 397 | *q++=(unsigned char) i; |
| 398 | *q++=(*p); |
| 399 | p+=i; |
| 400 | } |
| 401 | /* |
| 402 | End of line. |
| 403 | */ |
| 404 | *q++=(unsigned char) 0x00; |
| 405 | *q++=(unsigned char) 0x00; |
cristy | cee9711 | 2010-05-28 00:44:52 +0000 | [diff] [blame] | 406 | status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, |
cristy | 4e82e51 | 2011-04-24 01:33:42 +0000 | [diff] [blame] | 407 | image->rows); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 408 | if (status == MagickFalse) |
| 409 | break; |
| 410 | } |
| 411 | /* |
| 412 | End of bitmap. |
| 413 | */ |
| 414 | *q++=(unsigned char) 0x00; |
| 415 | *q++=(unsigned char) 0x01; |
| 416 | return((size_t) (q-compressed_pixels)); |
| 417 | } |
| 418 | |
| 419 | /* |
| 420 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 421 | % % |
| 422 | % % |
| 423 | % % |
| 424 | % I s B M P % |
| 425 | % % |
| 426 | % % |
| 427 | % % |
| 428 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 429 | % |
| 430 | % IsBMP() returns MagickTrue if the image format type, identified by the |
| 431 | % magick string, is BMP. |
| 432 | % |
| 433 | % The format of the IsBMP method is: |
| 434 | % |
| 435 | % MagickBooleanType IsBMP(const unsigned char *magick,const size_t length) |
| 436 | % |
| 437 | % A description of each parameter follows: |
| 438 | % |
| 439 | % o magick: compare image format pattern against these bytes. |
| 440 | % |
| 441 | % o length: Specifies the length of the magick string. |
| 442 | % |
| 443 | */ |
| 444 | static MagickBooleanType IsBMP(const unsigned char *magick,const size_t length) |
| 445 | { |
| 446 | if (length < 2) |
| 447 | return(MagickFalse); |
| 448 | if ((LocaleNCompare((char *) magick,"BA",2) == 0) || |
| 449 | (LocaleNCompare((char *) magick,"BM",2) == 0) || |
| 450 | (LocaleNCompare((char *) magick,"IC",2) == 0) || |
| 451 | (LocaleNCompare((char *) magick,"PI",2) == 0) || |
| 452 | (LocaleNCompare((char *) magick,"CI",2) == 0) || |
| 453 | (LocaleNCompare((char *) magick,"CP",2) == 0)) |
| 454 | return(MagickTrue); |
| 455 | return(MagickFalse); |
| 456 | } |
| 457 | |
| 458 | /* |
| 459 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 460 | % % |
| 461 | % % |
| 462 | % % |
| 463 | % R e a d B M P I m a g e % |
| 464 | % % |
| 465 | % % |
| 466 | % % |
| 467 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 468 | % |
| 469 | % ReadBMPImage() reads a Microsoft Windows bitmap image file, Version |
| 470 | % 2, 3 (for Windows or NT), or 4, and returns it. It allocates the memory |
| 471 | % necessary for the new Image structure and returns a pointer to the new |
| 472 | % image. |
| 473 | % |
| 474 | % The format of the ReadBMPImage method is: |
| 475 | % |
| 476 | % image=ReadBMPImage(image_info) |
| 477 | % |
| 478 | % A description of each parameter follows: |
| 479 | % |
| 480 | % o image_info: the image info. |
| 481 | % |
| 482 | % o exception: return any errors or warnings in this structure. |
| 483 | % |
| 484 | */ |
| 485 | |
| 486 | static Image *ReadBMPImage(const ImageInfo *image_info,ExceptionInfo *exception) |
| 487 | { |
| 488 | BMPInfo |
| 489 | bmp_info; |
| 490 | |
| 491 | Image |
| 492 | *image; |
| 493 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 494 | MagickBooleanType |
| 495 | status; |
| 496 | |
| 497 | MagickOffsetType |
| 498 | offset, |
| 499 | start_position; |
| 500 | |
cristy | a321eb7 | 2013-06-23 10:42:37 +0000 | [diff] [blame] | 501 | MemoryInfo |
cristy | 0553bd5 | 2013-06-30 15:53:50 +0000 | [diff] [blame] | 502 | *pixel_info; |
cristy | a321eb7 | 2013-06-23 10:42:37 +0000 | [diff] [blame] | 503 | |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 504 | Quantum |
| 505 | index; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 506 | |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 507 | register Quantum |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 508 | *q; |
| 509 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 510 | register ssize_t |
cristy | 0da0356 | 2011-04-23 23:23:21 +0000 | [diff] [blame] | 511 | i, |
| 512 | x; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 513 | |
| 514 | register unsigned char |
| 515 | *p; |
| 516 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 517 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 518 | bit, |
| 519 | blue, |
| 520 | bytes_per_line, |
| 521 | green, |
cristy | 0da0356 | 2011-04-23 23:23:21 +0000 | [diff] [blame] | 522 | length, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 523 | red; |
| 524 | |
cristy | 0da0356 | 2011-04-23 23:23:21 +0000 | [diff] [blame] | 525 | ssize_t |
cristy | 4e82e51 | 2011-04-24 01:33:42 +0000 | [diff] [blame] | 526 | count, |
| 527 | y; |
cristy | 0da0356 | 2011-04-23 23:23:21 +0000 | [diff] [blame] | 528 | |
| 529 | unsigned char |
| 530 | magick[12], |
| 531 | *pixels; |
| 532 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 533 | /* |
| 534 | Open image file. |
| 535 | */ |
| 536 | assert(image_info != (const ImageInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 537 | assert(image_info->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 538 | if (image_info->debug != MagickFalse) |
| 539 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", |
| 540 | image_info->filename); |
| 541 | assert(exception != (ExceptionInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 542 | assert(exception->signature == MagickCoreSignature); |
cristy | 9950d57 | 2011-10-01 18:22:35 +0000 | [diff] [blame] | 543 | image=AcquireImage(image_info,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 544 | status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); |
| 545 | if (status == MagickFalse) |
| 546 | { |
| 547 | image=DestroyImageList(image); |
| 548 | return((Image *) NULL); |
| 549 | } |
| 550 | /* |
| 551 | Determine if this a BMP file. |
| 552 | */ |
| 553 | (void) ResetMagickMemory(&bmp_info,0,sizeof(bmp_info)); |
| 554 | bmp_info.ba_offset=0; |
| 555 | start_position=0; |
| 556 | count=ReadBlob(image,2,magick); |
cristy | 771c884 | 2015-01-09 12:13:22 +0000 | [diff] [blame] | 557 | if (count != 2) |
| 558 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 559 | do |
| 560 | { |
cristy | 101ab70 | 2011-10-13 13:06:32 +0000 | [diff] [blame] | 561 | PixelInfo |
| 562 | quantum_bits; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 563 | |
| 564 | PixelPacket |
cristy | 101ab70 | 2011-10-13 13:06:32 +0000 | [diff] [blame] | 565 | shift; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 566 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 567 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 568 | profile_data, |
| 569 | profile_size; |
| 570 | |
| 571 | /* |
| 572 | Verify BMP identifier. |
| 573 | */ |
| 574 | if (bmp_info.ba_offset == 0) |
| 575 | start_position=TellBlob(image)-2; |
| 576 | bmp_info.ba_offset=0; |
| 577 | while (LocaleNCompare((char *) magick,"BA",2) == 0) |
| 578 | { |
| 579 | bmp_info.file_size=ReadBlobLSBLong(image); |
| 580 | bmp_info.ba_offset=ReadBlobLSBLong(image); |
| 581 | bmp_info.offset_bits=ReadBlobLSBLong(image); |
| 582 | count=ReadBlob(image,2,magick); |
| 583 | if (count != 2) |
| 584 | break; |
| 585 | } |
| 586 | if (image->debug != MagickFalse) |
| 587 | (void) LogMagickEvent(CoderEvent,GetMagickModule()," Magick: %c%c", |
| 588 | magick[0],magick[1]); |
cristy | 6af1e97 | 2015-01-06 12:46:27 +0000 | [diff] [blame] | 589 | if ((count != 2) || ((LocaleNCompare((char *) magick,"BM",2) != 0) && |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 590 | (LocaleNCompare((char *) magick,"CI",2) != 0))) |
| 591 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| 592 | bmp_info.file_size=ReadBlobLSBLong(image); |
| 593 | (void) ReadBlobLSBLong(image); |
| 594 | bmp_info.offset_bits=ReadBlobLSBLong(image); |
| 595 | bmp_info.size=ReadBlobLSBLong(image); |
| 596 | if (image->debug != MagickFalse) |
cristy | df40958 | 2015-06-12 16:35:04 +0000 | [diff] [blame] | 597 | (void) LogMagickEvent(CoderEvent,GetMagickModule()," BMP size: %lu", |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 598 | bmp_info.size); |
| 599 | if (bmp_info.size == 12) |
| 600 | { |
| 601 | /* |
| 602 | OS/2 BMP image file. |
| 603 | */ |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 604 | (void) CopyMagickString(image->magick,"BMP2",MagickPathExtent); |
cristy | a321eb7 | 2013-06-23 10:42:37 +0000 | [diff] [blame] | 605 | bmp_info.width=(ssize_t) ((short) ReadBlobLSBShort(image)); |
| 606 | bmp_info.height=(ssize_t) ((short) ReadBlobLSBShort(image)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 607 | bmp_info.planes=ReadBlobLSBShort(image); |
| 608 | bmp_info.bits_per_pixel=ReadBlobLSBShort(image); |
| 609 | bmp_info.x_pixels=0; |
| 610 | bmp_info.y_pixels=0; |
| 611 | bmp_info.number_colors=0; |
| 612 | bmp_info.compression=BI_RGB; |
| 613 | bmp_info.image_size=0; |
| 614 | bmp_info.alpha_mask=0; |
| 615 | if (image->debug != MagickFalse) |
| 616 | { |
| 617 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 618 | " Format: OS/2 Bitmap"); |
| 619 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 620 | " Geometry: %.20gx%.20g",(double) bmp_info.width,(double) |
| 621 | bmp_info.height); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 622 | } |
| 623 | } |
| 624 | else |
| 625 | { |
| 626 | /* |
| 627 | Microsoft Windows BMP image file. |
| 628 | */ |
| 629 | if (bmp_info.size < 40) |
| 630 | ThrowReaderException(CorruptImageError,"NonOS2HeaderSizeError"); |
cristy | a321eb7 | 2013-06-23 10:42:37 +0000 | [diff] [blame] | 631 | bmp_info.width=(ssize_t) ((int) ReadBlobLSBLong(image)); |
| 632 | bmp_info.height=(ssize_t) ((int) ReadBlobLSBLong(image)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 633 | bmp_info.planes=ReadBlobLSBShort(image); |
| 634 | bmp_info.bits_per_pixel=ReadBlobLSBShort(image); |
| 635 | bmp_info.compression=ReadBlobLSBLong(image); |
| 636 | bmp_info.image_size=ReadBlobLSBLong(image); |
| 637 | bmp_info.x_pixels=ReadBlobLSBLong(image); |
| 638 | bmp_info.y_pixels=ReadBlobLSBLong(image); |
| 639 | bmp_info.number_colors=ReadBlobLSBLong(image); |
| 640 | bmp_info.colors_important=ReadBlobLSBLong(image); |
| 641 | profile_data=0; |
| 642 | profile_size=0; |
| 643 | if (image->debug != MagickFalse) |
| 644 | { |
| 645 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 646 | " Format: MS Windows bitmap"); |
| 647 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 648 | " Geometry: %.20gx%.20g",(double) bmp_info.width,(double) |
| 649 | bmp_info.height); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 650 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 651 | " Bits per pixel: %.20g",(double) bmp_info.bits_per_pixel); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 652 | switch ((int) bmp_info.compression) |
| 653 | { |
| 654 | case BI_RGB: |
| 655 | { |
| 656 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 657 | " Compression: BI_RGB"); |
| 658 | break; |
| 659 | } |
| 660 | case BI_RLE4: |
| 661 | { |
| 662 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 663 | " Compression: BI_RLE4"); |
| 664 | break; |
| 665 | } |
| 666 | case BI_RLE8: |
| 667 | { |
| 668 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 669 | " Compression: BI_RLE8"); |
| 670 | break; |
| 671 | } |
| 672 | case BI_BITFIELDS: |
| 673 | { |
| 674 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 675 | " Compression: BI_BITFIELDS"); |
| 676 | break; |
| 677 | } |
| 678 | case BI_PNG: |
| 679 | { |
| 680 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 681 | " Compression: BI_PNG"); |
| 682 | break; |
| 683 | } |
| 684 | case BI_JPEG: |
| 685 | { |
| 686 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 687 | " Compression: BI_JPEG"); |
| 688 | break; |
| 689 | } |
| 690 | default: |
| 691 | { |
| 692 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | df40958 | 2015-06-12 16:35:04 +0000 | [diff] [blame] | 693 | " Compression: UNKNOWN (%lu)",bmp_info.compression); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 694 | } |
| 695 | } |
| 696 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | df40958 | 2015-06-12 16:35:04 +0000 | [diff] [blame] | 697 | " Number of colors: %lu",bmp_info.number_colors); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 698 | } |
| 699 | bmp_info.red_mask=ReadBlobLSBLong(image); |
| 700 | bmp_info.green_mask=ReadBlobLSBLong(image); |
| 701 | bmp_info.blue_mask=ReadBlobLSBLong(image); |
| 702 | if (bmp_info.size > 40) |
| 703 | { |
| 704 | double |
cristy | df40958 | 2015-06-12 16:35:04 +0000 | [diff] [blame] | 705 | gamma; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 706 | |
| 707 | /* |
| 708 | Read color management information. |
| 709 | */ |
| 710 | bmp_info.alpha_mask=ReadBlobLSBLong(image); |
cristy | 6cff05d | 2010-09-02 11:22:46 +0000 | [diff] [blame] | 711 | bmp_info.colorspace=(int) ReadBlobLSBLong(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 712 | /* |
| 713 | Decode 2^30 fixed point formatted CIE primaries. |
| 714 | */ |
glennrp | 34ea3d3 | 2012-11-22 03:57:24 +0000 | [diff] [blame] | 715 | # define BMP_DENOM ((double) 0x40000000) |
| 716 | bmp_info.red_primary.x=(double) ReadBlobLSBLong(image)/BMP_DENOM; |
| 717 | bmp_info.red_primary.y=(double) ReadBlobLSBLong(image)/BMP_DENOM; |
| 718 | bmp_info.red_primary.z=(double) ReadBlobLSBLong(image)/BMP_DENOM; |
| 719 | bmp_info.green_primary.x=(double) ReadBlobLSBLong(image)/BMP_DENOM; |
| 720 | bmp_info.green_primary.y=(double) ReadBlobLSBLong(image)/BMP_DENOM; |
| 721 | bmp_info.green_primary.z=(double) ReadBlobLSBLong(image)/BMP_DENOM; |
| 722 | bmp_info.blue_primary.x=(double) ReadBlobLSBLong(image)/BMP_DENOM; |
| 723 | bmp_info.blue_primary.y=(double) ReadBlobLSBLong(image)/BMP_DENOM; |
| 724 | bmp_info.blue_primary.z=(double) ReadBlobLSBLong(image)/BMP_DENOM; |
| 725 | |
cristy | df40958 | 2015-06-12 16:35:04 +0000 | [diff] [blame] | 726 | gamma=bmp_info.red_primary.x+bmp_info.red_primary.y+ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 727 | bmp_info.red_primary.z; |
cristy | df40958 | 2015-06-12 16:35:04 +0000 | [diff] [blame] | 728 | gamma=PerceptibleReciprocal(gamma); |
| 729 | bmp_info.red_primary.x*=gamma; |
| 730 | bmp_info.red_primary.y*=gamma; |
cristy | 4629d11 | 2012-11-22 02:25:54 +0000 | [diff] [blame] | 731 | image->chromaticity.red_primary.x=bmp_info.red_primary.x; |
| 732 | image->chromaticity.red_primary.y=bmp_info.red_primary.y; |
glennrp | 34ea3d3 | 2012-11-22 03:57:24 +0000 | [diff] [blame] | 733 | |
cristy | df40958 | 2015-06-12 16:35:04 +0000 | [diff] [blame] | 734 | gamma=bmp_info.green_primary.x+bmp_info.green_primary.y+ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 735 | bmp_info.green_primary.z; |
cristy | df40958 | 2015-06-12 16:35:04 +0000 | [diff] [blame] | 736 | gamma=PerceptibleReciprocal(gamma); |
| 737 | bmp_info.green_primary.x*=gamma; |
| 738 | bmp_info.green_primary.y*=gamma; |
cristy | 4629d11 | 2012-11-22 02:25:54 +0000 | [diff] [blame] | 739 | image->chromaticity.green_primary.x=bmp_info.green_primary.x; |
| 740 | image->chromaticity.green_primary.y=bmp_info.green_primary.y; |
glennrp | 34ea3d3 | 2012-11-22 03:57:24 +0000 | [diff] [blame] | 741 | |
cristy | df40958 | 2015-06-12 16:35:04 +0000 | [diff] [blame] | 742 | gamma=bmp_info.blue_primary.x+bmp_info.blue_primary.y+ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 743 | bmp_info.blue_primary.z; |
cristy | df40958 | 2015-06-12 16:35:04 +0000 | [diff] [blame] | 744 | gamma=PerceptibleReciprocal(gamma); |
| 745 | bmp_info.blue_primary.x*=gamma; |
| 746 | bmp_info.blue_primary.y*=gamma; |
cristy | 4629d11 | 2012-11-22 02:25:54 +0000 | [diff] [blame] | 747 | image->chromaticity.blue_primary.x=bmp_info.blue_primary.x; |
| 748 | image->chromaticity.blue_primary.y=bmp_info.blue_primary.y; |
glennrp | 34ea3d3 | 2012-11-22 03:57:24 +0000 | [diff] [blame] | 749 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 750 | /* |
| 751 | Decode 16^16 fixed point formatted gamma_scales. |
| 752 | */ |
cristy | c554cc8 | 2012-08-12 19:55:34 +0000 | [diff] [blame] | 753 | bmp_info.gamma_scale.x=(double) ReadBlobLSBLong(image)/0x10000; |
| 754 | bmp_info.gamma_scale.y=(double) ReadBlobLSBLong(image)/0x10000; |
| 755 | bmp_info.gamma_scale.z=(double) ReadBlobLSBLong(image)/0x10000; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 756 | /* |
| 757 | Compute a single gamma from the BMP 3-channel gamma. |
| 758 | */ |
| 759 | image->gamma=(bmp_info.gamma_scale.x+bmp_info.gamma_scale.y+ |
| 760 | bmp_info.gamma_scale.z)/3.0; |
| 761 | } |
dirk | 5816af4 | 2014-09-14 08:53:21 +0000 | [diff] [blame] | 762 | else |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 763 | (void) CopyMagickString(image->magick,"BMP3",MagickPathExtent); |
glennrp | 34ea3d3 | 2012-11-22 03:57:24 +0000 | [diff] [blame] | 764 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 765 | if (bmp_info.size > 108) |
| 766 | { |
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 | intent; |
| 769 | |
| 770 | /* |
| 771 | Read BMP Version 5 color management information. |
| 772 | */ |
| 773 | intent=ReadBlobLSBLong(image); |
| 774 | switch ((int) intent) |
| 775 | { |
| 776 | case LCS_GM_BUSINESS: |
| 777 | { |
| 778 | image->rendering_intent=SaturationIntent; |
| 779 | break; |
| 780 | } |
| 781 | case LCS_GM_GRAPHICS: |
| 782 | { |
| 783 | image->rendering_intent=RelativeIntent; |
| 784 | break; |
| 785 | } |
| 786 | case LCS_GM_IMAGES: |
| 787 | { |
| 788 | image->rendering_intent=PerceptualIntent; |
| 789 | break; |
| 790 | } |
| 791 | case LCS_GM_ABS_COLORIMETRIC: |
| 792 | { |
| 793 | image->rendering_intent=AbsoluteIntent; |
| 794 | break; |
| 795 | } |
| 796 | } |
| 797 | profile_data=ReadBlobLSBLong(image); |
| 798 | profile_size=ReadBlobLSBLong(image); |
cristy | da16f16 | 2011-02-19 23:52:17 +0000 | [diff] [blame] | 799 | (void) profile_data; |
| 800 | (void) profile_size; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 801 | (void) ReadBlobLSBLong(image); /* Reserved byte */ |
| 802 | } |
| 803 | } |
cristy | 59eefcf | 2011-02-01 15:54:38 +0000 | [diff] [blame] | 804 | if ((MagickSizeType) bmp_info.file_size > GetBlobSize(image)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 805 | (void) ThrowMagickException(exception,GetMagickModule(),CorruptImageError, |
| 806 | "LengthAndFilesizeDoNotMatch","`%s'",image->filename); |
cristy | 59eefcf | 2011-02-01 15:54:38 +0000 | [diff] [blame] | 807 | else |
| 808 | if ((MagickSizeType) bmp_info.file_size < GetBlobSize(image)) |
| 809 | (void) ThrowMagickException(exception,GetMagickModule(), |
| 810 | CorruptImageWarning,"LengthAndFilesizeDoNotMatch","`%s'", |
| 811 | image->filename); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 812 | if (bmp_info.width <= 0) |
| 813 | ThrowReaderException(CorruptImageError,"NegativeOrZeroImageSize"); |
| 814 | if (bmp_info.height == 0) |
| 815 | ThrowReaderException(CorruptImageError,"NegativeOrZeroImageSize"); |
| 816 | if (bmp_info.planes != 1) |
| 817 | ThrowReaderException(CorruptImageError,"StaticPlanesValueNotEqualToOne"); |
| 818 | if ((bmp_info.bits_per_pixel != 1) && (bmp_info.bits_per_pixel != 4) && |
| 819 | (bmp_info.bits_per_pixel != 8) && (bmp_info.bits_per_pixel != 16) && |
| 820 | (bmp_info.bits_per_pixel != 24) && (bmp_info.bits_per_pixel != 32)) |
| 821 | ThrowReaderException(CorruptImageError,"UnrecognizedBitsPerPixel"); |
glennrp | f5d7c9e | 2012-11-23 17:43:18 +0000 | [diff] [blame] | 822 | if (bmp_info.bits_per_pixel < 16 && |
| 823 | bmp_info.number_colors > (1U << bmp_info.bits_per_pixel)) |
cristy | f8dcd77 | 2014-12-19 12:11:44 +0000 | [diff] [blame] | 824 | ThrowReaderException(CorruptImageError,"UnrecognizedNumberOfColors"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 825 | if ((bmp_info.compression == 1) && (bmp_info.bits_per_pixel != 8)) |
| 826 | ThrowReaderException(CorruptImageError,"UnrecognizedBitsPerPixel"); |
| 827 | if ((bmp_info.compression == 2) && (bmp_info.bits_per_pixel != 4)) |
| 828 | ThrowReaderException(CorruptImageError,"UnrecognizedBitsPerPixel"); |
| 829 | if ((bmp_info.compression == 3) && (bmp_info.bits_per_pixel < 16)) |
| 830 | ThrowReaderException(CorruptImageError,"UnrecognizedBitsPerPixel"); |
| 831 | switch (bmp_info.compression) |
| 832 | { |
| 833 | case BI_RGB: |
| 834 | case BI_RLE8: |
| 835 | case BI_RLE4: |
| 836 | case BI_BITFIELDS: |
| 837 | break; |
| 838 | case BI_JPEG: |
| 839 | ThrowReaderException(CoderError,"JPEGCompressNotSupported"); |
| 840 | case BI_PNG: |
| 841 | ThrowReaderException(CoderError,"PNGCompressNotSupported"); |
| 842 | default: |
| 843 | ThrowReaderException(CorruptImageError,"UnrecognizedImageCompression"); |
| 844 | } |
cristy | 7c242ea | 2013-06-21 17:19:53 +0000 | [diff] [blame] | 845 | image->columns=(size_t) MagickAbsoluteValue(bmp_info.width); |
| 846 | image->rows=(size_t) MagickAbsoluteValue(bmp_info.height); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 847 | image->depth=bmp_info.bits_per_pixel <= 8 ? bmp_info.bits_per_pixel : 8; |
dirk | c2dce49 | 2013-11-30 21:16:04 +0000 | [diff] [blame] | 848 | image->alpha_trait=((bmp_info.alpha_mask != 0) && |
dirk | f161fa4 | 2014-12-15 15:46:43 +0000 | [diff] [blame] | 849 | (bmp_info.compression == BI_BITFIELDS)) ? BlendPixelTrait : |
| 850 | UndefinedPixelTrait; |
glennrp | f5d7c9e | 2012-11-23 17:43:18 +0000 | [diff] [blame] | 851 | if (bmp_info.bits_per_pixel < 16) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 852 | { |
cristy | 0b29b25 | 2010-05-30 01:59:46 +0000 | [diff] [blame] | 853 | size_t |
| 854 | one; |
| 855 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 856 | image->storage_class=PseudoClass; |
| 857 | image->colors=bmp_info.number_colors; |
cristy | 0b29b25 | 2010-05-30 01:59:46 +0000 | [diff] [blame] | 858 | one=1; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 859 | if (image->colors == 0) |
cristy | 0b29b25 | 2010-05-30 01:59:46 +0000 | [diff] [blame] | 860 | image->colors=one << bmp_info.bits_per_pixel; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 861 | } |
| 862 | if (image->storage_class == PseudoClass) |
| 863 | { |
| 864 | unsigned char |
| 865 | *bmp_colormap; |
| 866 | |
| 867 | size_t |
| 868 | packet_size; |
| 869 | |
| 870 | /* |
| 871 | Read BMP raster colormap. |
| 872 | */ |
| 873 | if (image->debug != MagickFalse) |
| 874 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 875 | " Reading colormap of %.20g colors",(double) image->colors); |
cristy | 018f07f | 2011-09-04 21:15:19 +0000 | [diff] [blame] | 876 | if (AcquireImageColormap(image,image->colors,exception) == MagickFalse) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 877 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
| 878 | bmp_colormap=(unsigned char *) AcquireQuantumMemory((size_t) |
| 879 | image->colors,4*sizeof(*bmp_colormap)); |
| 880 | if (bmp_colormap == (unsigned char *) NULL) |
| 881 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
| 882 | if ((bmp_info.size == 12) || (bmp_info.size == 64)) |
| 883 | packet_size=3; |
| 884 | else |
| 885 | packet_size=4; |
| 886 | offset=SeekBlob(image,start_position+14+bmp_info.size,SEEK_SET); |
| 887 | if (offset < 0) |
| 888 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| 889 | count=ReadBlob(image,packet_size*image->colors,bmp_colormap); |
| 890 | if (count != (ssize_t) (packet_size*image->colors)) |
| 891 | ThrowReaderException(CorruptImageError,"InsufficientImageDataInFile"); |
| 892 | p=bmp_colormap; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 893 | for (i=0; i < (ssize_t) image->colors; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 894 | { |
cristy | a321eb7 | 2013-06-23 10:42:37 +0000 | [diff] [blame] | 895 | image->colormap[i].blue=(MagickRealType) ScaleCharToQuantum(*p++); |
| 896 | image->colormap[i].green=(MagickRealType) ScaleCharToQuantum(*p++); |
| 897 | image->colormap[i].red=(MagickRealType) ScaleCharToQuantum(*p++); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 898 | if (packet_size == 4) |
| 899 | p++; |
| 900 | } |
| 901 | bmp_colormap=(unsigned char *) RelinquishMagickMemory(bmp_colormap); |
| 902 | } |
cristy | 47b81c2 | 2012-03-29 14:19:09 +0000 | [diff] [blame] | 903 | image->resolution.x=(double) bmp_info.x_pixels/100.0; |
| 904 | image->resolution.y=(double) bmp_info.y_pixels/100.0; |
| 905 | image->units=PixelsPerCentimeterResolution; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 906 | if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0)) |
| 907 | if (image->scene >= (image_info->scene+image_info->number_scenes-1)) |
| 908 | break; |
cristy | acabb84 | 2014-12-14 23:36:33 +0000 | [diff] [blame] | 909 | status=SetImageExtent(image,image->columns,image->rows,exception); |
| 910 | if (status == MagickFalse) |
| 911 | return(DestroyImageList(image)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 912 | /* |
| 913 | Read image data. |
| 914 | */ |
cristy | cd20c15 | 2012-04-09 18:57:54 +0000 | [diff] [blame] | 915 | offset=SeekBlob(image,start_position+bmp_info.offset_bits,SEEK_SET); |
| 916 | if (offset < 0) |
| 917 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 918 | if (bmp_info.compression == BI_RLE4) |
| 919 | bmp_info.bits_per_pixel<<=1; |
| 920 | bytes_per_line=4*((image->columns*bmp_info.bits_per_pixel+31)/32); |
| 921 | length=(size_t) bytes_per_line*image->rows; |
cristy | 0553bd5 | 2013-06-30 15:53:50 +0000 | [diff] [blame] | 922 | pixel_info=AcquireVirtualMemory((size_t) image->rows, |
cristy | 7c242ea | 2013-06-21 17:19:53 +0000 | [diff] [blame] | 923 | MagickMax(bytes_per_line,image->columns+256UL)*sizeof(*pixels)); |
cristy | 0553bd5 | 2013-06-30 15:53:50 +0000 | [diff] [blame] | 924 | if (pixel_info == (MemoryInfo *) NULL) |
cristy | 7c242ea | 2013-06-21 17:19:53 +0000 | [diff] [blame] | 925 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
cristy | 0553bd5 | 2013-06-30 15:53:50 +0000 | [diff] [blame] | 926 | pixels=(unsigned char *) GetVirtualMemoryBlob(pixel_info); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 927 | if ((bmp_info.compression == BI_RGB) || |
| 928 | (bmp_info.compression == BI_BITFIELDS)) |
| 929 | { |
| 930 | if (image->debug != MagickFalse) |
| 931 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 932 | " Reading pixels (%.20g bytes)",(double) length); |
cristy | 7c242ea | 2013-06-21 17:19:53 +0000 | [diff] [blame] | 933 | count=ReadBlob(image,length,pixels); |
| 934 | if (count != (ssize_t) length) |
cristy | de60ea7 | 2010-07-09 23:12:09 +0000 | [diff] [blame] | 935 | { |
cristy | 0553bd5 | 2013-06-30 15:53:50 +0000 | [diff] [blame] | 936 | pixel_info=RelinquishVirtualMemory(pixel_info); |
cristy | 7c242ea | 2013-06-21 17:19:53 +0000 | [diff] [blame] | 937 | ThrowReaderException(CorruptImageError, |
| 938 | "InsufficientImageDataInFile"); |
cristy | de60ea7 | 2010-07-09 23:12:09 +0000 | [diff] [blame] | 939 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 940 | } |
| 941 | else |
| 942 | { |
| 943 | /* |
| 944 | Convert run-length encoded raster pixels. |
| 945 | */ |
| 946 | status=DecodeImage(image,bmp_info.compression,pixels); |
| 947 | if (status == MagickFalse) |
cristy | de60ea7 | 2010-07-09 23:12:09 +0000 | [diff] [blame] | 948 | { |
cristy | 0553bd5 | 2013-06-30 15:53:50 +0000 | [diff] [blame] | 949 | pixel_info=RelinquishVirtualMemory(pixel_info); |
cristy | de60ea7 | 2010-07-09 23:12:09 +0000 | [diff] [blame] | 950 | ThrowReaderException(CorruptImageError, |
| 951 | "UnableToRunlengthDecodeImage"); |
| 952 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 953 | } |
| 954 | /* |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 955 | Convert BMP raster image to pixel packets. |
| 956 | */ |
| 957 | if (bmp_info.compression == BI_RGB) |
| 958 | { |
dirk | f161fa4 | 2014-12-15 15:46:43 +0000 | [diff] [blame] | 959 | /* |
| 960 | We should ignore the alpha value in BMP3 files but there have been |
| 961 | reports about 32 bit files with alpha. We do a quick check to see if |
| 962 | the alpha channel contains a value that is not zero (default value). |
| 963 | If we find a non zero value we asume the program that wrote the file |
| 964 | wants to use the alpha channel. |
| 965 | */ |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 966 | if ((image->alpha_trait == UndefinedPixelTrait) && (bmp_info.size == 40) && |
dirk | f161fa4 | 2014-12-15 15:46:43 +0000 | [diff] [blame] | 967 | (bmp_info.bits_per_pixel == 32)) |
| 968 | { |
| 969 | bytes_per_line=4*(image->columns); |
| 970 | for (y=(ssize_t) image->rows-1; y >= 0; y--) |
| 971 | { |
| 972 | p=pixels+(image->rows-y-1)*bytes_per_line; |
| 973 | for (x=0; x < (ssize_t) image->columns; x++) |
| 974 | { |
| 975 | if (*(p+3) != 0) |
| 976 | { |
| 977 | image->alpha_trait=BlendPixelTrait; |
| 978 | y=-1; |
| 979 | break; |
| 980 | } |
| 981 | p+=4; |
| 982 | } |
| 983 | } |
| 984 | } |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 985 | bmp_info.alpha_mask=image->alpha_trait != UndefinedPixelTrait ? |
cristy | a321eb7 | 2013-06-23 10:42:37 +0000 | [diff] [blame] | 986 | 0xff000000U : 0U; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 987 | bmp_info.red_mask=0x00ff0000U; |
| 988 | bmp_info.green_mask=0x0000ff00U; |
| 989 | bmp_info.blue_mask=0x000000ffU; |
| 990 | if (bmp_info.bits_per_pixel == 16) |
| 991 | { |
| 992 | /* |
| 993 | RGB555. |
| 994 | */ |
| 995 | bmp_info.red_mask=0x00007c00U; |
| 996 | bmp_info.green_mask=0x000003e0U; |
| 997 | bmp_info.blue_mask=0x0000001fU; |
| 998 | } |
| 999 | } |
cristy | 58d4fe1 | 2015-02-07 11:53:05 +0000 | [diff] [blame] | 1000 | (void) ResetMagickMemory(&shift,0,sizeof(shift)); |
| 1001 | (void) ResetMagickMemory(&quantum_bits,0,sizeof(quantum_bits)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1002 | if ((bmp_info.bits_per_pixel == 16) || (bmp_info.bits_per_pixel == 32)) |
| 1003 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1004 | register size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1005 | sample; |
| 1006 | |
| 1007 | /* |
| 1008 | Get shift and quantum bits info from bitfield masks. |
| 1009 | */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1010 | if (bmp_info.red_mask != 0) |
| 1011 | while (((bmp_info.red_mask << shift.red) & 0x80000000UL) == 0) |
| 1012 | shift.red++; |
| 1013 | if (bmp_info.green_mask != 0) |
| 1014 | while (((bmp_info.green_mask << shift.green) & 0x80000000UL) == 0) |
| 1015 | shift.green++; |
| 1016 | if (bmp_info.blue_mask != 0) |
| 1017 | while (((bmp_info.blue_mask << shift.blue) & 0x80000000UL) == 0) |
| 1018 | shift.blue++; |
| 1019 | if (bmp_info.alpha_mask != 0) |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1020 | while (((bmp_info.alpha_mask << shift.alpha) & 0x80000000UL) == 0) |
| 1021 | shift.alpha++; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1022 | sample=shift.red; |
| 1023 | while (((bmp_info.red_mask << sample) & 0x80000000UL) != 0) |
| 1024 | sample++; |
cristy | a321eb7 | 2013-06-23 10:42:37 +0000 | [diff] [blame] | 1025 | quantum_bits.red=(MagickRealType) (sample-shift.red); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1026 | sample=shift.green; |
| 1027 | while (((bmp_info.green_mask << sample) & 0x80000000UL) != 0) |
| 1028 | sample++; |
cristy | a321eb7 | 2013-06-23 10:42:37 +0000 | [diff] [blame] | 1029 | quantum_bits.green=(MagickRealType) (sample-shift.green); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1030 | sample=shift.blue; |
| 1031 | while (((bmp_info.blue_mask << sample) & 0x80000000UL) != 0) |
| 1032 | sample++; |
cristy | a321eb7 | 2013-06-23 10:42:37 +0000 | [diff] [blame] | 1033 | quantum_bits.blue=(MagickRealType) (sample-shift.blue); |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1034 | sample=shift.alpha; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1035 | while (((bmp_info.alpha_mask << sample) & 0x80000000UL) != 0) |
| 1036 | sample++; |
cristy | a321eb7 | 2013-06-23 10:42:37 +0000 | [diff] [blame] | 1037 | quantum_bits.alpha=(MagickRealType) (sample-shift.alpha); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1038 | } |
| 1039 | switch (bmp_info.bits_per_pixel) |
| 1040 | { |
| 1041 | case 1: |
| 1042 | { |
| 1043 | /* |
| 1044 | Convert bitmap scanline. |
| 1045 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1046 | for (y=(ssize_t) image->rows-1; y >= 0; y--) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1047 | { |
| 1048 | p=pixels+(image->rows-y-1)*bytes_per_line; |
| 1049 | q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
cristy | acd2ed2 | 2011-08-30 01:44:23 +0000 | [diff] [blame] | 1050 | if (q == (Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1051 | break; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1052 | for (x=0; x < ((ssize_t) image->columns-7); x+=8) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1053 | { |
| 1054 | for (bit=0; bit < 8; bit++) |
| 1055 | { |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1056 | index=(Quantum) (((*p) & (0x80 >> bit)) != 0 ? 0x01 : 0x00); |
| 1057 | SetPixelIndex(image,index,q); |
cristy | ed23157 | 2011-07-14 02:18:59 +0000 | [diff] [blame] | 1058 | q+=GetPixelChannels(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1059 | } |
| 1060 | p++; |
| 1061 | } |
| 1062 | if ((image->columns % 8) != 0) |
| 1063 | { |
| 1064 | for (bit=0; bit < (image->columns % 8); bit++) |
| 1065 | { |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1066 | index=(Quantum) (((*p) & (0x80 >> bit)) != 0 ? 0x01 : 0x00); |
| 1067 | SetPixelIndex(image,index,q); |
cristy | ed23157 | 2011-07-14 02:18:59 +0000 | [diff] [blame] | 1068 | q+=GetPixelChannels(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1069 | } |
| 1070 | p++; |
| 1071 | } |
| 1072 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 1073 | break; |
| 1074 | if (image->previous == (Image *) NULL) |
| 1075 | { |
cristy | 8314a30 | 2014-12-08 16:05:32 +0000 | [diff] [blame] | 1076 | status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) |
| 1077 | (image->rows-y),image->rows); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1078 | if (status == MagickFalse) |
| 1079 | break; |
| 1080 | } |
| 1081 | } |
cristy | ea1a8aa | 2011-10-20 13:24:06 +0000 | [diff] [blame] | 1082 | (void) SyncImage(image,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1083 | break; |
| 1084 | } |
| 1085 | case 4: |
| 1086 | { |
| 1087 | /* |
| 1088 | Convert PseudoColor scanline. |
| 1089 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1090 | for (y=(ssize_t) image->rows-1; y >= 0; y--) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1091 | { |
| 1092 | p=pixels+(image->rows-y-1)*bytes_per_line; |
| 1093 | q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
cristy | acd2ed2 | 2011-08-30 01:44:23 +0000 | [diff] [blame] | 1094 | if (q == (Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1095 | break; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1096 | for (x=0; x < ((ssize_t) image->columns-1); x+=2) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1097 | { |
dirk | fcef175 | 2014-12-29 21:43:36 +0000 | [diff] [blame] | 1098 | if (IsValidColormapIndex(image,(*p >> 4) & 0x0f,&index,exception) |
| 1099 | == MagickFalse) |
| 1100 | break; |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1101 | SetPixelIndex(image,index,q); |
cristy | ed23157 | 2011-07-14 02:18:59 +0000 | [diff] [blame] | 1102 | q+=GetPixelChannels(image); |
dirk | fcef175 | 2014-12-29 21:43:36 +0000 | [diff] [blame] | 1103 | if (IsValidColormapIndex(image,*p & 0x0f,&index,exception) == |
| 1104 | MagickFalse) |
| 1105 | break; |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1106 | SetPixelIndex(image,index,q); |
cristy | ed23157 | 2011-07-14 02:18:59 +0000 | [diff] [blame] | 1107 | q+=GetPixelChannels(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1108 | p++; |
| 1109 | } |
| 1110 | if ((image->columns % 2) != 0) |
| 1111 | { |
dirk | fcef175 | 2014-12-29 21:43:36 +0000 | [diff] [blame] | 1112 | if (IsValidColormapIndex(image,(*p >> 4) & 0xf,&index,exception) |
| 1113 | == MagickFalse) |
| 1114 | break; |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1115 | SetPixelIndex(image,index,q); |
cristy | ed23157 | 2011-07-14 02:18:59 +0000 | [diff] [blame] | 1116 | q+=GetPixelChannels(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1117 | p++; |
dirk | c8e4bcc | 2015-06-27 21:33:57 +0000 | [diff] [blame] | 1118 | x++; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1119 | } |
cristy | b3f97ae | 2015-05-18 12:29:32 +0000 | [diff] [blame] | 1120 | if (x < (ssize_t) image->columns) |
dirk | fcef175 | 2014-12-29 21:43:36 +0000 | [diff] [blame] | 1121 | break; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1122 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 1123 | break; |
| 1124 | if (image->previous == (Image *) NULL) |
| 1125 | { |
cristy | 8314a30 | 2014-12-08 16:05:32 +0000 | [diff] [blame] | 1126 | status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) |
| 1127 | (image->rows-y),image->rows); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1128 | if (status == MagickFalse) |
| 1129 | break; |
| 1130 | } |
| 1131 | } |
cristy | ea1a8aa | 2011-10-20 13:24:06 +0000 | [diff] [blame] | 1132 | (void) SyncImage(image,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1133 | break; |
| 1134 | } |
| 1135 | case 8: |
| 1136 | { |
| 1137 | /* |
| 1138 | Convert PseudoColor scanline. |
| 1139 | */ |
| 1140 | if ((bmp_info.compression == BI_RLE8) || |
| 1141 | (bmp_info.compression == BI_RLE4)) |
| 1142 | bytes_per_line=image->columns; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1143 | for (y=(ssize_t) image->rows-1; y >= 0; y--) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1144 | { |
| 1145 | p=pixels+(image->rows-y-1)*bytes_per_line; |
| 1146 | q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
cristy | acd2ed2 | 2011-08-30 01:44:23 +0000 | [diff] [blame] | 1147 | if (q == (Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1148 | break; |
cristy | caf4580 | 2012-06-16 18:28:54 +0000 | [diff] [blame] | 1149 | for (x=(ssize_t) image->columns; x != 0; --x) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1150 | { |
dirk | fcef175 | 2014-12-29 21:43:36 +0000 | [diff] [blame] | 1151 | if (IsValidColormapIndex(image,*p++,&index,exception) == |
| 1152 | MagickFalse) |
| 1153 | break; |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1154 | SetPixelIndex(image,index,q); |
cristy | ed23157 | 2011-07-14 02:18:59 +0000 | [diff] [blame] | 1155 | q+=GetPixelChannels(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1156 | } |
dirk | fcef175 | 2014-12-29 21:43:36 +0000 | [diff] [blame] | 1157 | if (x > 0) |
| 1158 | break; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1159 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 1160 | break; |
| 1161 | offset=(MagickOffsetType) (image->rows-y-1); |
| 1162 | if (image->previous == (Image *) NULL) |
| 1163 | { |
cristy | 8314a30 | 2014-12-08 16:05:32 +0000 | [diff] [blame] | 1164 | status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) |
| 1165 | (image->rows-y),image->rows); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1166 | if (status == MagickFalse) |
| 1167 | break; |
| 1168 | } |
| 1169 | } |
cristy | ea1a8aa | 2011-10-20 13:24:06 +0000 | [diff] [blame] | 1170 | (void) SyncImage(image,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1171 | break; |
| 1172 | } |
| 1173 | case 16: |
| 1174 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1175 | size_t |
cristy | 3e03ba7 | 2014-12-09 12:19:30 +0000 | [diff] [blame] | 1176 | alpha, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1177 | pixel; |
| 1178 | |
| 1179 | /* |
| 1180 | Convert bitfield encoded 16-bit PseudoColor scanline. |
| 1181 | */ |
| 1182 | if (bmp_info.compression != BI_RGB && |
| 1183 | bmp_info.compression != BI_BITFIELDS) |
cristy | de60ea7 | 2010-07-09 23:12:09 +0000 | [diff] [blame] | 1184 | { |
cristy | 0553bd5 | 2013-06-30 15:53:50 +0000 | [diff] [blame] | 1185 | pixel_info=RelinquishVirtualMemory(pixel_info); |
cristy | de60ea7 | 2010-07-09 23:12:09 +0000 | [diff] [blame] | 1186 | ThrowReaderException(CorruptImageError, |
| 1187 | "UnrecognizedImageCompression"); |
| 1188 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1189 | bytes_per_line=2*(image->columns+image->columns % 2); |
| 1190 | image->storage_class=DirectClass; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1191 | for (y=(ssize_t) image->rows-1; y >= 0; y--) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1192 | { |
| 1193 | p=pixels+(image->rows-y-1)*bytes_per_line; |
| 1194 | q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
cristy | acd2ed2 | 2011-08-30 01:44:23 +0000 | [diff] [blame] | 1195 | if (q == (Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1196 | break; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1197 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1198 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1199 | pixel=(size_t) (*p++); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1200 | pixel|=(*p++) << 8; |
| 1201 | red=((pixel & bmp_info.red_mask) << shift.red) >> 16; |
| 1202 | if (quantum_bits.red == 5) |
| 1203 | red|=((red & 0xe000) >> 5); |
| 1204 | if (quantum_bits.red <= 8) |
| 1205 | red|=((red & 0xff00) >> 8); |
| 1206 | green=((pixel & bmp_info.green_mask) << shift.green) >> 16; |
| 1207 | if (quantum_bits.green == 5) |
| 1208 | green|=((green & 0xe000) >> 5); |
| 1209 | if (quantum_bits.green == 6) |
| 1210 | green|=((green & 0xc000) >> 6); |
| 1211 | if (quantum_bits.green <= 8) |
| 1212 | green|=((green & 0xff00) >> 8); |
| 1213 | blue=((pixel & bmp_info.blue_mask) << shift.blue) >> 16; |
| 1214 | if (quantum_bits.blue == 5) |
| 1215 | blue|=((blue & 0xe000) >> 5); |
| 1216 | if (quantum_bits.blue <= 8) |
| 1217 | blue|=((blue & 0xff00) >> 8); |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1218 | SetPixelRed(image,ScaleShortToQuantum((unsigned short) red),q); |
| 1219 | SetPixelGreen(image,ScaleShortToQuantum((unsigned short) green),q); |
| 1220 | SetPixelBlue(image,ScaleShortToQuantum((unsigned short) blue),q); |
| 1221 | SetPixelAlpha(image,OpaqueAlpha,q); |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 1222 | if (image->alpha_trait != UndefinedPixelTrait) |
dirk | f161fa4 | 2014-12-15 15:46:43 +0000 | [diff] [blame] | 1223 | { |
| 1224 | alpha=((pixel & bmp_info.alpha_mask) << shift.alpha) >> 16; |
| 1225 | if (quantum_bits.alpha <= 8) |
| 1226 | alpha|=((alpha & 0xff00) >> 8); |
| 1227 | SetPixelAlpha(image,ScaleShortToQuantum( |
| 1228 | (unsigned short) alpha),q); |
| 1229 | } |
cristy | ed23157 | 2011-07-14 02:18:59 +0000 | [diff] [blame] | 1230 | q+=GetPixelChannels(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1231 | } |
| 1232 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 1233 | break; |
| 1234 | offset=(MagickOffsetType) (image->rows-y-1); |
| 1235 | if (image->previous == (Image *) NULL) |
| 1236 | { |
cristy | 8314a30 | 2014-12-08 16:05:32 +0000 | [diff] [blame] | 1237 | status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) |
| 1238 | (image->rows-y),image->rows); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1239 | if (status == MagickFalse) |
| 1240 | break; |
| 1241 | } |
| 1242 | } |
| 1243 | break; |
| 1244 | } |
| 1245 | case 24: |
| 1246 | { |
| 1247 | /* |
| 1248 | Convert DirectColor scanline. |
| 1249 | */ |
| 1250 | bytes_per_line=4*((image->columns*24+31)/32); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1251 | for (y=(ssize_t) image->rows-1; y >= 0; y--) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1252 | { |
| 1253 | p=pixels+(image->rows-y-1)*bytes_per_line; |
| 1254 | q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
cristy | acd2ed2 | 2011-08-30 01:44:23 +0000 | [diff] [blame] | 1255 | if (q == (Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1256 | break; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1257 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1258 | { |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1259 | SetPixelBlue(image,ScaleCharToQuantum(*p++),q); |
| 1260 | SetPixelGreen(image,ScaleCharToQuantum(*p++),q); |
| 1261 | SetPixelRed(image,ScaleCharToQuantum(*p++),q); |
| 1262 | SetPixelAlpha(image,OpaqueAlpha,q); |
cristy | ed23157 | 2011-07-14 02:18:59 +0000 | [diff] [blame] | 1263 | q+=GetPixelChannels(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1264 | } |
| 1265 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 1266 | break; |
| 1267 | offset=(MagickOffsetType) (image->rows-y-1); |
| 1268 | if (image->previous == (Image *) NULL) |
| 1269 | { |
cristy | 8314a30 | 2014-12-08 16:05:32 +0000 | [diff] [blame] | 1270 | status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) |
| 1271 | (image->rows-y),image->rows); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1272 | if (status == MagickFalse) |
| 1273 | break; |
| 1274 | } |
| 1275 | } |
| 1276 | break; |
| 1277 | } |
| 1278 | case 32: |
| 1279 | { |
| 1280 | /* |
| 1281 | Convert bitfield encoded DirectColor scanline. |
| 1282 | */ |
| 1283 | if ((bmp_info.compression != BI_RGB) && |
| 1284 | (bmp_info.compression != BI_BITFIELDS)) |
cristy | de60ea7 | 2010-07-09 23:12:09 +0000 | [diff] [blame] | 1285 | { |
cristy | 0553bd5 | 2013-06-30 15:53:50 +0000 | [diff] [blame] | 1286 | pixel_info=RelinquishVirtualMemory(pixel_info); |
cristy | de60ea7 | 2010-07-09 23:12:09 +0000 | [diff] [blame] | 1287 | ThrowReaderException(CorruptImageError, |
| 1288 | "UnrecognizedImageCompression"); |
| 1289 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1290 | bytes_per_line=4*(image->columns); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1291 | for (y=(ssize_t) image->rows-1; y >= 0; y--) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1292 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1293 | size_t |
cristy | 3e03ba7 | 2014-12-09 12:19:30 +0000 | [diff] [blame] | 1294 | alpha, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1295 | pixel; |
| 1296 | |
| 1297 | p=pixels+(image->rows-y-1)*bytes_per_line; |
| 1298 | q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
cristy | acd2ed2 | 2011-08-30 01:44:23 +0000 | [diff] [blame] | 1299 | if (q == (Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1300 | break; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1301 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1302 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1303 | pixel=(size_t) (*p++); |
cristy | fa6de8c | 2014-05-18 16:34:44 +0000 | [diff] [blame] | 1304 | pixel|=((size_t) *p++ << 8); |
| 1305 | pixel|=((size_t) *p++ << 16); |
| 1306 | pixel|=((size_t) *p++ << 24); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1307 | red=((pixel & bmp_info.red_mask) << shift.red) >> 16; |
| 1308 | if (quantum_bits.red == 8) |
| 1309 | red|=(red >> 8); |
| 1310 | green=((pixel & bmp_info.green_mask) << shift.green) >> 16; |
| 1311 | if (quantum_bits.green == 8) |
| 1312 | green|=(green >> 8); |
| 1313 | blue=((pixel & bmp_info.blue_mask) << shift.blue) >> 16; |
| 1314 | if (quantum_bits.blue == 8) |
| 1315 | blue|=(blue >> 8); |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1316 | SetPixelRed(image,ScaleShortToQuantum((unsigned short) red),q); |
| 1317 | SetPixelGreen(image,ScaleShortToQuantum((unsigned short) green),q); |
| 1318 | SetPixelBlue(image,ScaleShortToQuantum((unsigned short) blue),q); |
dirk | 271dce6 | 2014-12-14 20:28:38 +0000 | [diff] [blame] | 1319 | SetPixelAlpha(image,OpaqueAlpha,q); |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 1320 | if (image->alpha_trait != UndefinedPixelTrait) |
dirk | f161fa4 | 2014-12-15 15:46:43 +0000 | [diff] [blame] | 1321 | { |
| 1322 | alpha=((pixel & bmp_info.alpha_mask) << shift.alpha) >> 16; |
| 1323 | if (quantum_bits.alpha == 8) |
| 1324 | alpha|=(alpha >> 8); |
| 1325 | SetPixelAlpha(image,ScaleShortToQuantum( |
| 1326 | (unsigned short) alpha),q); |
| 1327 | } |
cristy | ed23157 | 2011-07-14 02:18:59 +0000 | [diff] [blame] | 1328 | q+=GetPixelChannels(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1329 | } |
| 1330 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 1331 | break; |
| 1332 | offset=(MagickOffsetType) (image->rows-y-1); |
| 1333 | if (image->previous == (Image *) NULL) |
| 1334 | { |
cristy | 8314a30 | 2014-12-08 16:05:32 +0000 | [diff] [blame] | 1335 | status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) |
| 1336 | (image->rows-y),image->rows); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1337 | if (status == MagickFalse) |
| 1338 | break; |
| 1339 | } |
| 1340 | } |
| 1341 | break; |
| 1342 | } |
| 1343 | default: |
cristy | de60ea7 | 2010-07-09 23:12:09 +0000 | [diff] [blame] | 1344 | { |
cristy | 0553bd5 | 2013-06-30 15:53:50 +0000 | [diff] [blame] | 1345 | pixel_info=RelinquishVirtualMemory(pixel_info); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1346 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
cristy | de60ea7 | 2010-07-09 23:12:09 +0000 | [diff] [blame] | 1347 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1348 | } |
cristy | 0553bd5 | 2013-06-30 15:53:50 +0000 | [diff] [blame] | 1349 | pixel_info=RelinquishVirtualMemory(pixel_info); |
dirk | fcef175 | 2014-12-29 21:43:36 +0000 | [diff] [blame] | 1350 | if (y > 0) |
| 1351 | break; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1352 | if (EOFBlob(image) != MagickFalse) |
| 1353 | { |
| 1354 | ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile", |
| 1355 | image->filename); |
| 1356 | break; |
| 1357 | } |
| 1358 | if (bmp_info.height < 0) |
| 1359 | { |
| 1360 | Image |
| 1361 | *flipped_image; |
| 1362 | |
| 1363 | /* |
| 1364 | Correct image orientation. |
| 1365 | */ |
| 1366 | flipped_image=FlipImage(image,exception); |
cristy | 65e3b00 | 2010-04-13 21:20:56 +0000 | [diff] [blame] | 1367 | if (flipped_image != (Image *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1368 | { |
cristy | 65e3b00 | 2010-04-13 21:20:56 +0000 | [diff] [blame] | 1369 | DuplicateBlob(flipped_image,image); |
| 1370 | image=DestroyImage(image); |
| 1371 | image=flipped_image; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1372 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1373 | } |
| 1374 | /* |
| 1375 | Proceed to next image. |
| 1376 | */ |
| 1377 | if (image_info->number_scenes != 0) |
| 1378 | if (image->scene >= (image_info->scene+image_info->number_scenes-1)) |
| 1379 | break; |
| 1380 | *magick='\0'; |
| 1381 | if (bmp_info.ba_offset != 0) |
| 1382 | { |
| 1383 | offset=SeekBlob(image,(MagickOffsetType) bmp_info.ba_offset,SEEK_SET); |
| 1384 | if (offset < 0) |
| 1385 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| 1386 | } |
| 1387 | count=ReadBlob(image,2,magick); |
| 1388 | if ((count == 2) && (IsBMP(magick,2) != MagickFalse)) |
| 1389 | { |
| 1390 | /* |
| 1391 | Acquire next image structure. |
| 1392 | */ |
cristy | 9950d57 | 2011-10-01 18:22:35 +0000 | [diff] [blame] | 1393 | AcquireNextImage(image_info,image,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1394 | if (GetNextImageInList(image) == (Image *) NULL) |
| 1395 | { |
| 1396 | image=DestroyImageList(image); |
| 1397 | return((Image *) NULL); |
| 1398 | } |
| 1399 | image=SyncNextImageInList(image); |
| 1400 | status=SetImageProgress(image,LoadImagesTag,TellBlob(image), |
| 1401 | GetBlobSize(image)); |
| 1402 | if (status == MagickFalse) |
| 1403 | break; |
| 1404 | } |
| 1405 | } while (IsBMP(magick,2) != MagickFalse); |
| 1406 | (void) CloseBlob(image); |
| 1407 | return(GetFirstImageInList(image)); |
| 1408 | } |
| 1409 | |
| 1410 | /* |
| 1411 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1412 | % % |
| 1413 | % % |
| 1414 | % % |
| 1415 | % R e g i s t e r B M P I m a g e % |
| 1416 | % % |
| 1417 | % % |
| 1418 | % % |
| 1419 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1420 | % |
| 1421 | % RegisterBMPImage() adds attributes for the BMP image format to |
| 1422 | % the list of supported formats. The attributes include the image format |
| 1423 | % tag, a method to read and/or write the format, whether the format |
| 1424 | % supports the saving of more than one frame to the same file or blob, |
| 1425 | % whether the format supports native in-memory I/O, and a brief |
| 1426 | % description of the format. |
| 1427 | % |
| 1428 | % The format of the RegisterBMPImage method is: |
| 1429 | % |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1430 | % size_t RegisterBMPImage(void) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1431 | % |
| 1432 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1433 | ModuleExport size_t RegisterBMPImage(void) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1434 | { |
| 1435 | MagickInfo |
| 1436 | *entry; |
| 1437 | |
dirk | 06b627a | 2015-04-06 18:59:17 +0000 | [diff] [blame] | 1438 | entry=AcquireMagickInfo("BMP","BMP","Microsoft Windows bitmap image"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1439 | entry->decoder=(DecodeImageHandler *) ReadBMPImage; |
| 1440 | entry->encoder=(EncodeImageHandler *) WriteBMPImage; |
| 1441 | entry->magick=(IsImageFormatHandler *) IsBMP; |
dirk | 08e9a11 | 2015-02-22 01:51:41 +0000 | [diff] [blame] | 1442 | entry->flags^=CoderAdjoinFlag; |
| 1443 | entry->flags|=CoderSeekableStreamFlag; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1444 | (void) RegisterMagickInfo(entry); |
dirk | 06b627a | 2015-04-06 18:59:17 +0000 | [diff] [blame] | 1445 | entry=AcquireMagickInfo("BMP","BMP2","Microsoft Windows bitmap image (V2)"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1446 | entry->encoder=(EncodeImageHandler *) WriteBMPImage; |
| 1447 | entry->magick=(IsImageFormatHandler *) IsBMP; |
dirk | 08e9a11 | 2015-02-22 01:51:41 +0000 | [diff] [blame] | 1448 | entry->flags^=CoderAdjoinFlag; |
| 1449 | entry->flags|=CoderSeekableStreamFlag; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1450 | (void) RegisterMagickInfo(entry); |
dirk | 06b627a | 2015-04-06 18:59:17 +0000 | [diff] [blame] | 1451 | entry=AcquireMagickInfo("BMP","BMP3","Microsoft Windows bitmap image (V3)"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1452 | entry->encoder=(EncodeImageHandler *) WriteBMPImage; |
| 1453 | entry->magick=(IsImageFormatHandler *) IsBMP; |
dirk | 08e9a11 | 2015-02-22 01:51:41 +0000 | [diff] [blame] | 1454 | entry->flags^=CoderAdjoinFlag; |
| 1455 | entry->flags|=CoderSeekableStreamFlag; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1456 | (void) RegisterMagickInfo(entry); |
| 1457 | return(MagickImageCoderSignature); |
| 1458 | } |
| 1459 | |
| 1460 | /* |
| 1461 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1462 | % % |
| 1463 | % % |
| 1464 | % % |
| 1465 | % U n r e g i s t e r B M P I m a g e % |
| 1466 | % % |
| 1467 | % % |
| 1468 | % % |
| 1469 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1470 | % |
| 1471 | % UnregisterBMPImage() removes format registrations made by the |
| 1472 | % BMP module from the list of supported formats. |
| 1473 | % |
| 1474 | % The format of the UnregisterBMPImage method is: |
| 1475 | % |
| 1476 | % UnregisterBMPImage(void) |
| 1477 | % |
| 1478 | */ |
| 1479 | ModuleExport void UnregisterBMPImage(void) |
| 1480 | { |
| 1481 | (void) UnregisterMagickInfo("BMP"); |
| 1482 | (void) UnregisterMagickInfo("BMP2"); |
| 1483 | (void) UnregisterMagickInfo("BMP3"); |
| 1484 | } |
| 1485 | |
| 1486 | /* |
| 1487 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1488 | % % |
| 1489 | % % |
| 1490 | % % |
| 1491 | % W r i t e B M P I m a g e % |
| 1492 | % % |
| 1493 | % % |
| 1494 | % % |
| 1495 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1496 | % |
| 1497 | % WriteBMPImage() writes an image in Microsoft Windows bitmap encoded |
| 1498 | % image format, version 3 for Windows or (if the image has a matte channel) |
| 1499 | % version 4. |
| 1500 | % |
| 1501 | % The format of the WriteBMPImage method is: |
| 1502 | % |
cristy | 1e178e7 | 2011-08-28 19:44:34 +0000 | [diff] [blame] | 1503 | % MagickBooleanType WriteBMPImage(const ImageInfo *image_info, |
| 1504 | % Image *image,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1505 | % |
| 1506 | % A description of each parameter follows. |
| 1507 | % |
| 1508 | % o image_info: the image info. |
| 1509 | % |
| 1510 | % o image: The image. |
| 1511 | % |
cristy | 1e178e7 | 2011-08-28 19:44:34 +0000 | [diff] [blame] | 1512 | % o exception: return any errors or warnings in this structure. |
| 1513 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1514 | */ |
cristy | 1e178e7 | 2011-08-28 19:44:34 +0000 | [diff] [blame] | 1515 | static MagickBooleanType WriteBMPImage(const ImageInfo *image_info,Image *image, |
| 1516 | ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1517 | { |
| 1518 | BMPInfo |
| 1519 | bmp_info; |
glennrp | d0a3f8b | 2013-08-10 16:11:30 +0000 | [diff] [blame] | 1520 | |
dirk | de652d9 | 2015-11-26 13:19:13 +0100 | [diff] [blame] | 1521 | const char |
| 1522 | *option; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1523 | |
| 1524 | const StringInfo |
| 1525 | *profile; |
| 1526 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1527 | MagickBooleanType |
| 1528 | have_color_info, |
| 1529 | status; |
| 1530 | |
| 1531 | MagickOffsetType |
| 1532 | scene; |
| 1533 | |
cristy | a321eb7 | 2013-06-23 10:42:37 +0000 | [diff] [blame] | 1534 | MemoryInfo |
cristy | 0553bd5 | 2013-06-30 15:53:50 +0000 | [diff] [blame] | 1535 | *pixel_info; |
cristy | a321eb7 | 2013-06-23 10:42:37 +0000 | [diff] [blame] | 1536 | |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1537 | register const Quantum |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1538 | *p; |
| 1539 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1540 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1541 | i, |
| 1542 | x; |
| 1543 | |
| 1544 | register unsigned char |
| 1545 | *q; |
| 1546 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1547 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1548 | bytes_per_line, |
| 1549 | type; |
| 1550 | |
cristy | 4e82e51 | 2011-04-24 01:33:42 +0000 | [diff] [blame] | 1551 | ssize_t |
| 1552 | y; |
| 1553 | |
| 1554 | unsigned char |
| 1555 | *bmp_data, |
| 1556 | *pixels; |
| 1557 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1558 | /* |
| 1559 | Open output image file. |
| 1560 | */ |
| 1561 | assert(image_info != (const ImageInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 1562 | assert(image_info->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1563 | assert(image != (Image *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 1564 | assert(image->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1565 | if (image->debug != MagickFalse) |
| 1566 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
cristy | 3a37efd | 2011-08-28 20:31:03 +0000 | [diff] [blame] | 1567 | assert(exception != (ExceptionInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 1568 | assert(exception->signature == MagickCoreSignature); |
cristy | 1e178e7 | 2011-08-28 19:44:34 +0000 | [diff] [blame] | 1569 | status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1570 | if (status == MagickFalse) |
| 1571 | return(status); |
| 1572 | type=4; |
| 1573 | if (LocaleCompare(image_info->magick,"BMP2") == 0) |
| 1574 | type=2; |
| 1575 | else |
| 1576 | if (LocaleCompare(image_info->magick,"BMP3") == 0) |
| 1577 | type=3; |
glennrp | d0a3f8b | 2013-08-10 16:11:30 +0000 | [diff] [blame] | 1578 | |
dirk | de652d9 | 2015-11-26 13:19:13 +0100 | [diff] [blame] | 1579 | option=GetImageOption(image_info,"bmp:format"); |
| 1580 | if (option != (char *) NULL) |
glennrp | d0a3f8b | 2013-08-10 16:11:30 +0000 | [diff] [blame] | 1581 | { |
| 1582 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
dirk | de652d9 | 2015-11-26 13:19:13 +0100 | [diff] [blame] | 1583 | " Format=%s",option); |
glennrp | d0a3f8b | 2013-08-10 16:11:30 +0000 | [diff] [blame] | 1584 | |
dirk | de652d9 | 2015-11-26 13:19:13 +0100 | [diff] [blame] | 1585 | if (LocaleCompare(option,"bmp2") == 0) |
glennrp | d0a3f8b | 2013-08-10 16:11:30 +0000 | [diff] [blame] | 1586 | type=2; |
dirk | de652d9 | 2015-11-26 13:19:13 +0100 | [diff] [blame] | 1587 | if (LocaleCompare(option,"bmp3") == 0) |
glennrp | d0a3f8b | 2013-08-10 16:11:30 +0000 | [diff] [blame] | 1588 | type=3; |
dirk | de652d9 | 2015-11-26 13:19:13 +0100 | [diff] [blame] | 1589 | if (LocaleCompare(option,"bmp4") == 0) |
glennrp | d0a3f8b | 2013-08-10 16:11:30 +0000 | [diff] [blame] | 1590 | type=4; |
| 1591 | } |
| 1592 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1593 | scene=0; |
| 1594 | do |
| 1595 | { |
| 1596 | /* |
| 1597 | Initialize BMP raster file header. |
| 1598 | */ |
cristy | af8d391 | 2014-02-21 14:50:33 +0000 | [diff] [blame] | 1599 | (void) TransformImageColorspace(image,sRGBColorspace,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1600 | (void) ResetMagickMemory(&bmp_info,0,sizeof(bmp_info)); |
| 1601 | bmp_info.file_size=14+12; |
| 1602 | if (type > 2) |
| 1603 | bmp_info.file_size+=28; |
| 1604 | bmp_info.offset_bits=bmp_info.file_size; |
| 1605 | bmp_info.compression=BI_RGB; |
| 1606 | if ((image->storage_class == PseudoClass) && (image->colors > 256)) |
cristy | 1e178e7 | 2011-08-28 19:44:34 +0000 | [diff] [blame] | 1607 | (void) SetImageStorageClass(image,DirectClass,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1608 | if (image->storage_class != DirectClass) |
| 1609 | { |
| 1610 | /* |
| 1611 | Colormapped BMP raster. |
| 1612 | */ |
| 1613 | bmp_info.bits_per_pixel=8; |
| 1614 | if (image->colors <= 2) |
| 1615 | bmp_info.bits_per_pixel=1; |
| 1616 | else |
| 1617 | if (image->colors <= 16) |
| 1618 | bmp_info.bits_per_pixel=4; |
| 1619 | else |
| 1620 | if (image->colors <= 256) |
| 1621 | bmp_info.bits_per_pixel=8; |
| 1622 | if (image_info->compression == RLECompression) |
| 1623 | bmp_info.bits_per_pixel=8; |
| 1624 | bmp_info.number_colors=1U << bmp_info.bits_per_pixel; |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 1625 | if (image->alpha_trait != UndefinedPixelTrait) |
cristy | 1e178e7 | 2011-08-28 19:44:34 +0000 | [diff] [blame] | 1626 | (void) SetImageStorageClass(image,DirectClass,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1627 | else |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1628 | if ((size_t) bmp_info.number_colors < image->colors) |
cristy | 1e178e7 | 2011-08-28 19:44:34 +0000 | [diff] [blame] | 1629 | (void) SetImageStorageClass(image,DirectClass,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1630 | else |
| 1631 | { |
| 1632 | bmp_info.file_size+=3*(1UL << bmp_info.bits_per_pixel); |
| 1633 | bmp_info.offset_bits+=3*(1UL << bmp_info.bits_per_pixel); |
| 1634 | if (type > 2) |
| 1635 | { |
| 1636 | bmp_info.file_size+=(1UL << bmp_info.bits_per_pixel); |
| 1637 | bmp_info.offset_bits+=(1UL << bmp_info.bits_per_pixel); |
| 1638 | } |
| 1639 | } |
| 1640 | } |
| 1641 | if (image->storage_class == DirectClass) |
| 1642 | { |
| 1643 | /* |
| 1644 | Full color BMP raster. |
| 1645 | */ |
| 1646 | bmp_info.number_colors=0; |
| 1647 | bmp_info.bits_per_pixel=(unsigned short) |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 1648 | ((type > 3) && (image->alpha_trait != UndefinedPixelTrait) ? 32 : 24); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1649 | bmp_info.compression=(unsigned int) ((type > 3) && |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 1650 | (image->alpha_trait != UndefinedPixelTrait) ? BI_BITFIELDS : BI_RGB); |
dirk | de652d9 | 2015-11-26 13:19:13 +0100 | [diff] [blame] | 1651 | if ((type == 3) && (image->alpha_trait != UndefinedPixelTrait)) |
| 1652 | { |
| 1653 | option=GetImageOption(image_info,"bmp3:alpha"); |
| 1654 | if (IsStringTrue(option)) |
| 1655 | bmp_info.bits_per_pixel=32; |
| 1656 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1657 | } |
| 1658 | bytes_per_line=4*((image->columns*bmp_info.bits_per_pixel+31)/32); |
| 1659 | bmp_info.ba_offset=0; |
| 1660 | profile=GetImageProfile(image,"icc"); |
| 1661 | have_color_info=(image->rendering_intent != UndefinedIntent) || |
| 1662 | (profile != (StringInfo *) NULL) || (image->gamma != 0.0) ? MagickTrue : |
| 1663 | MagickFalse; |
| 1664 | if (type == 2) |
| 1665 | bmp_info.size=12; |
| 1666 | else |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 1667 | if ((type == 3) || ((image->alpha_trait == UndefinedPixelTrait) && |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1668 | (have_color_info == MagickFalse))) |
| 1669 | { |
| 1670 | type=3; |
| 1671 | bmp_info.size=40; |
| 1672 | } |
| 1673 | else |
| 1674 | { |
| 1675 | int |
| 1676 | extra_size; |
| 1677 | |
| 1678 | bmp_info.size=108; |
| 1679 | extra_size=68; |
| 1680 | if ((image->rendering_intent != UndefinedIntent) || |
| 1681 | (profile != (StringInfo *) NULL)) |
| 1682 | { |
| 1683 | bmp_info.size=124; |
| 1684 | extra_size+=16; |
| 1685 | } |
| 1686 | bmp_info.file_size+=extra_size; |
| 1687 | bmp_info.offset_bits+=extra_size; |
| 1688 | } |
cristy | 7c242ea | 2013-06-21 17:19:53 +0000 | [diff] [blame] | 1689 | bmp_info.width=(ssize_t) image->columns; |
| 1690 | bmp_info.height=(ssize_t) image->rows; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1691 | bmp_info.planes=1; |
| 1692 | bmp_info.image_size=(unsigned int) (bytes_per_line*image->rows); |
| 1693 | bmp_info.file_size+=bmp_info.image_size; |
| 1694 | bmp_info.x_pixels=75*39; |
| 1695 | bmp_info.y_pixels=75*39; |
| 1696 | switch (image->units) |
| 1697 | { |
| 1698 | case UndefinedResolution: |
| 1699 | case PixelsPerInchResolution: |
| 1700 | { |
cristy | 2a11bef | 2011-10-28 18:33:11 +0000 | [diff] [blame] | 1701 | bmp_info.x_pixels=(unsigned int) (100.0*image->resolution.x/2.54); |
| 1702 | bmp_info.y_pixels=(unsigned int) (100.0*image->resolution.y/2.54); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1703 | break; |
| 1704 | } |
| 1705 | case PixelsPerCentimeterResolution: |
| 1706 | { |
cristy | 2a11bef | 2011-10-28 18:33:11 +0000 | [diff] [blame] | 1707 | bmp_info.x_pixels=(unsigned int) (100.0*image->resolution.x); |
| 1708 | bmp_info.y_pixels=(unsigned int) (100.0*image->resolution.y); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1709 | break; |
| 1710 | } |
| 1711 | } |
| 1712 | bmp_info.colors_important=bmp_info.number_colors; |
| 1713 | /* |
| 1714 | Convert MIFF to BMP raster pixels. |
| 1715 | */ |
cristy | 0553bd5 | 2013-06-30 15:53:50 +0000 | [diff] [blame] | 1716 | pixel_info=AcquireVirtualMemory((size_t) bmp_info.image_size, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1717 | sizeof(*pixels)); |
cristy | 0553bd5 | 2013-06-30 15:53:50 +0000 | [diff] [blame] | 1718 | if (pixel_info == (MemoryInfo *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1719 | ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
cristy | 0553bd5 | 2013-06-30 15:53:50 +0000 | [diff] [blame] | 1720 | pixels=(unsigned char *) GetVirtualMemoryBlob(pixel_info); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1721 | (void) ResetMagickMemory(pixels,0,(size_t) bmp_info.image_size); |
| 1722 | switch (bmp_info.bits_per_pixel) |
| 1723 | { |
| 1724 | case 1: |
| 1725 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1726 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1727 | bit, |
| 1728 | byte; |
| 1729 | |
| 1730 | /* |
| 1731 | Convert PseudoClass image to a BMP monochrome image. |
| 1732 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1733 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1734 | { |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1735 | ssize_t |
| 1736 | offset; |
| 1737 | |
cristy | 1e178e7 | 2011-08-28 19:44:34 +0000 | [diff] [blame] | 1738 | p=GetVirtualPixels(image,0,y,image->columns,1,exception); |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1739 | if (p == (const Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1740 | break; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1741 | q=pixels+(image->rows-y-1)*bytes_per_line; |
| 1742 | bit=0; |
| 1743 | byte=0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1744 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1745 | { |
| 1746 | byte<<=1; |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1747 | byte|=GetPixelIndex(image,p) != 0 ? 0x01 : 0x00; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1748 | bit++; |
| 1749 | if (bit == 8) |
| 1750 | { |
| 1751 | *q++=(unsigned char) byte; |
| 1752 | bit=0; |
| 1753 | byte=0; |
| 1754 | } |
cristy | ed23157 | 2011-07-14 02:18:59 +0000 | [diff] [blame] | 1755 | p+=GetPixelChannels(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1756 | } |
| 1757 | if (bit != 0) |
| 1758 | { |
| 1759 | *q++=(unsigned char) (byte << (8-bit)); |
| 1760 | x++; |
| 1761 | } |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1762 | offset=(ssize_t) (image->columns+7)/8; |
| 1763 | for (x=offset; x < (ssize_t) bytes_per_line; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1764 | *q++=0x00; |
| 1765 | if (image->previous == (Image *) NULL) |
| 1766 | { |
cristy | cee9711 | 2010-05-28 00:44:52 +0000 | [diff] [blame] | 1767 | status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, |
| 1768 | image->rows); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1769 | if (status == MagickFalse) |
| 1770 | break; |
| 1771 | } |
| 1772 | } |
| 1773 | break; |
| 1774 | } |
| 1775 | case 4: |
| 1776 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1777 | size_t |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1778 | byte, |
cristy | a321eb7 | 2013-06-23 10:42:37 +0000 | [diff] [blame] | 1779 | nibble; |
| 1780 | |
| 1781 | ssize_t |
cristy | 7c242ea | 2013-06-21 17:19:53 +0000 | [diff] [blame] | 1782 | offset; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1783 | |
| 1784 | /* |
| 1785 | Convert PseudoClass image to a BMP monochrome image. |
| 1786 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1787 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1788 | { |
cristy | 1e178e7 | 2011-08-28 19:44:34 +0000 | [diff] [blame] | 1789 | p=GetVirtualPixels(image,0,y,image->columns,1,exception); |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1790 | if (p == (const Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1791 | break; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1792 | q=pixels+(image->rows-y-1)*bytes_per_line; |
| 1793 | nibble=0; |
| 1794 | byte=0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1795 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1796 | { |
| 1797 | byte<<=4; |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1798 | byte|=((size_t) GetPixelIndex(image,p) & 0x0f); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1799 | nibble++; |
| 1800 | if (nibble == 2) |
| 1801 | { |
| 1802 | *q++=(unsigned char) byte; |
| 1803 | nibble=0; |
| 1804 | byte=0; |
| 1805 | } |
cristy | ed23157 | 2011-07-14 02:18:59 +0000 | [diff] [blame] | 1806 | p+=GetPixelChannels(image); |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1807 | } |
| 1808 | if (nibble != 0) |
| 1809 | { |
| 1810 | *q++=(unsigned char) (byte << 4); |
| 1811 | x++; |
| 1812 | } |
| 1813 | offset=(ssize_t) (image->columns+1)/2; |
| 1814 | for (x=offset; x < (ssize_t) bytes_per_line; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1815 | *q++=0x00; |
| 1816 | if (image->previous == (Image *) NULL) |
| 1817 | { |
cristy | cee9711 | 2010-05-28 00:44:52 +0000 | [diff] [blame] | 1818 | status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, |
| 1819 | image->rows); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1820 | if (status == MagickFalse) |
| 1821 | break; |
| 1822 | } |
| 1823 | } |
| 1824 | break; |
| 1825 | } |
| 1826 | case 8: |
| 1827 | { |
| 1828 | /* |
| 1829 | Convert PseudoClass packet to BMP pixel. |
| 1830 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1831 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1832 | { |
cristy | 1e178e7 | 2011-08-28 19:44:34 +0000 | [diff] [blame] | 1833 | p=GetVirtualPixels(image,0,y,image->columns,1,exception); |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1834 | if (p == (const Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1835 | break; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1836 | q=pixels+(image->rows-y-1)*bytes_per_line; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1837 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1838 | { |
| 1839 | *q++=(unsigned char) GetPixelIndex(image,p); |
cristy | ed23157 | 2011-07-14 02:18:59 +0000 | [diff] [blame] | 1840 | p+=GetPixelChannels(image); |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1841 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1842 | for ( ; x < (ssize_t) bytes_per_line; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1843 | *q++=0x00; |
| 1844 | if (image->previous == (Image *) NULL) |
| 1845 | { |
cristy | cee9711 | 2010-05-28 00:44:52 +0000 | [diff] [blame] | 1846 | status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, |
| 1847 | image->rows); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1848 | if (status == MagickFalse) |
| 1849 | break; |
| 1850 | } |
| 1851 | } |
| 1852 | break; |
| 1853 | } |
| 1854 | case 24: |
| 1855 | { |
| 1856 | /* |
| 1857 | Convert DirectClass packet to BMP BGR888. |
| 1858 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1859 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1860 | { |
cristy | 1e178e7 | 2011-08-28 19:44:34 +0000 | [diff] [blame] | 1861 | p=GetVirtualPixels(image,0,y,image->columns,1,exception); |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1862 | if (p == (const Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1863 | break; |
| 1864 | q=pixels+(image->rows-y-1)*bytes_per_line; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1865 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1866 | { |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1867 | *q++=ScaleQuantumToChar(GetPixelBlue(image,p)); |
| 1868 | *q++=ScaleQuantumToChar(GetPixelGreen(image,p)); |
| 1869 | *q++=ScaleQuantumToChar(GetPixelRed(image,p)); |
cristy | ed23157 | 2011-07-14 02:18:59 +0000 | [diff] [blame] | 1870 | p+=GetPixelChannels(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1871 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1872 | for (x=3L*(ssize_t) image->columns; x < (ssize_t) bytes_per_line; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1873 | *q++=0x00; |
| 1874 | if (image->previous == (Image *) NULL) |
| 1875 | { |
cristy | cee9711 | 2010-05-28 00:44:52 +0000 | [diff] [blame] | 1876 | status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, |
| 1877 | image->rows); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1878 | if (status == MagickFalse) |
| 1879 | break; |
| 1880 | } |
| 1881 | } |
| 1882 | break; |
| 1883 | } |
| 1884 | case 32: |
| 1885 | { |
| 1886 | /* |
| 1887 | Convert DirectClass packet to ARGB8888 pixel. |
| 1888 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1889 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1890 | { |
cristy | 1e178e7 | 2011-08-28 19:44:34 +0000 | [diff] [blame] | 1891 | p=GetVirtualPixels(image,0,y,image->columns,1,exception); |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1892 | if (p == (const Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1893 | break; |
| 1894 | q=pixels+(image->rows-y-1)*bytes_per_line; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1895 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1896 | { |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1897 | *q++=ScaleQuantumToChar(GetPixelBlue(image,p)); |
| 1898 | *q++=ScaleQuantumToChar(GetPixelGreen(image,p)); |
| 1899 | *q++=ScaleQuantumToChar(GetPixelRed(image,p)); |
| 1900 | *q++=ScaleQuantumToChar(GetPixelAlpha(image,p)); |
cristy | ed23157 | 2011-07-14 02:18:59 +0000 | [diff] [blame] | 1901 | p+=GetPixelChannels(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1902 | } |
| 1903 | if (image->previous == (Image *) NULL) |
| 1904 | { |
cristy | cee9711 | 2010-05-28 00:44:52 +0000 | [diff] [blame] | 1905 | status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, |
| 1906 | image->rows); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1907 | if (status == MagickFalse) |
| 1908 | break; |
| 1909 | } |
| 1910 | } |
| 1911 | break; |
| 1912 | } |
| 1913 | } |
| 1914 | if ((type > 2) && (bmp_info.bits_per_pixel == 8)) |
| 1915 | if (image_info->compression != NoCompression) |
| 1916 | { |
cristy | a321eb7 | 2013-06-23 10:42:37 +0000 | [diff] [blame] | 1917 | MemoryInfo |
| 1918 | *rle_info; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1919 | |
| 1920 | /* |
| 1921 | Convert run-length encoded raster pixels. |
| 1922 | */ |
cristy | a321eb7 | 2013-06-23 10:42:37 +0000 | [diff] [blame] | 1923 | rle_info=AcquireVirtualMemory((size_t) (2*(bytes_per_line+2)+2), |
| 1924 | (image->rows+2)*sizeof(*pixels)); |
| 1925 | if (rle_info == (MemoryInfo *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1926 | { |
cristy | 0553bd5 | 2013-06-30 15:53:50 +0000 | [diff] [blame] | 1927 | pixel_info=RelinquishVirtualMemory(pixel_info); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1928 | ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
| 1929 | } |
cristy | a321eb7 | 2013-06-23 10:42:37 +0000 | [diff] [blame] | 1930 | bmp_data=(unsigned char *) GetVirtualMemoryBlob(rle_info); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1931 | bmp_info.file_size-=bmp_info.image_size; |
| 1932 | bmp_info.image_size=(unsigned int) EncodeImage(image,bytes_per_line, |
| 1933 | pixels,bmp_data); |
| 1934 | bmp_info.file_size+=bmp_info.image_size; |
cristy | 0553bd5 | 2013-06-30 15:53:50 +0000 | [diff] [blame] | 1935 | pixel_info=RelinquishVirtualMemory(pixel_info); |
| 1936 | pixel_info=rle_info; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1937 | pixels=bmp_data; |
| 1938 | bmp_info.compression=BI_RLE8; |
| 1939 | } |
| 1940 | /* |
| 1941 | Write BMP for Windows, all versions, 14-byte header. |
| 1942 | */ |
| 1943 | if (image->debug != MagickFalse) |
| 1944 | { |
| 1945 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 1946 | " Writing BMP version %.20g datastream",(double) type); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1947 | if (image->storage_class == DirectClass) |
| 1948 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 1949 | " Storage class=DirectClass"); |
| 1950 | else |
| 1951 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 1952 | " Storage class=PseudoClass"); |
| 1953 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 1954 | " Image depth=%.20g",(double) image->depth); |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 1955 | if (image->alpha_trait != UndefinedPixelTrait) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1956 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 1957 | " Matte=True"); |
| 1958 | else |
| 1959 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 1960 | " Matte=MagickFalse"); |
| 1961 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 1962 | " BMP bits_per_pixel=%.20g",(double) bmp_info.bits_per_pixel); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1963 | switch ((int) bmp_info.compression) |
| 1964 | { |
| 1965 | case BI_RGB: |
| 1966 | { |
| 1967 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 1968 | " Compression=BI_RGB"); |
| 1969 | break; |
| 1970 | } |
| 1971 | case BI_RLE8: |
| 1972 | { |
| 1973 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 1974 | " Compression=BI_RLE8"); |
| 1975 | break; |
| 1976 | } |
| 1977 | case BI_BITFIELDS: |
| 1978 | { |
| 1979 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 1980 | " Compression=BI_BITFIELDS"); |
| 1981 | break; |
| 1982 | } |
| 1983 | default: |
| 1984 | { |
| 1985 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | df40958 | 2015-06-12 16:35:04 +0000 | [diff] [blame] | 1986 | " Compression=UNKNOWN (%lu)",bmp_info.compression); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1987 | break; |
| 1988 | } |
| 1989 | } |
| 1990 | if (bmp_info.number_colors == 0) |
| 1991 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 1992 | " Number_colors=unspecified"); |
| 1993 | else |
| 1994 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | df40958 | 2015-06-12 16:35:04 +0000 | [diff] [blame] | 1995 | " Number_colors=%lu",bmp_info.number_colors); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1996 | } |
| 1997 | (void) WriteBlob(image,2,(unsigned char *) "BM"); |
| 1998 | (void) WriteBlobLSBLong(image,bmp_info.file_size); |
| 1999 | (void) WriteBlobLSBLong(image,bmp_info.ba_offset); /* always 0 */ |
| 2000 | (void) WriteBlobLSBLong(image,bmp_info.offset_bits); |
| 2001 | if (type == 2) |
| 2002 | { |
| 2003 | /* |
| 2004 | Write 12-byte version 2 bitmap header. |
| 2005 | */ |
| 2006 | (void) WriteBlobLSBLong(image,bmp_info.size); |
| 2007 | (void) WriteBlobLSBShort(image,(unsigned short) bmp_info.width); |
| 2008 | (void) WriteBlobLSBShort(image,(unsigned short) bmp_info.height); |
| 2009 | (void) WriteBlobLSBShort(image,bmp_info.planes); |
| 2010 | (void) WriteBlobLSBShort(image,bmp_info.bits_per_pixel); |
| 2011 | } |
| 2012 | else |
| 2013 | { |
| 2014 | /* |
| 2015 | Write 40-byte version 3+ bitmap header. |
| 2016 | */ |
| 2017 | (void) WriteBlobLSBLong(image,bmp_info.size); |
| 2018 | (void) WriteBlobLSBLong(image,(unsigned int) bmp_info.width); |
| 2019 | (void) WriteBlobLSBLong(image,(unsigned int) bmp_info.height); |
| 2020 | (void) WriteBlobLSBShort(image,bmp_info.planes); |
| 2021 | (void) WriteBlobLSBShort(image,bmp_info.bits_per_pixel); |
| 2022 | (void) WriteBlobLSBLong(image,bmp_info.compression); |
| 2023 | (void) WriteBlobLSBLong(image,bmp_info.image_size); |
| 2024 | (void) WriteBlobLSBLong(image,bmp_info.x_pixels); |
| 2025 | (void) WriteBlobLSBLong(image,bmp_info.y_pixels); |
| 2026 | (void) WriteBlobLSBLong(image,bmp_info.number_colors); |
| 2027 | (void) WriteBlobLSBLong(image,bmp_info.colors_important); |
| 2028 | } |
cristy | 17f11b0 | 2014-12-20 19:37:04 +0000 | [diff] [blame] | 2029 | if ((type > 3) && ((image->alpha_trait != UndefinedPixelTrait) || |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2030 | (have_color_info != MagickFalse))) |
| 2031 | { |
| 2032 | /* |
| 2033 | Write the rest of the 108-byte BMP Version 4 header. |
| 2034 | */ |
| 2035 | (void) WriteBlobLSBLong(image,0x00ff0000U); /* Red mask */ |
| 2036 | (void) WriteBlobLSBLong(image,0x0000ff00U); /* Green mask */ |
| 2037 | (void) WriteBlobLSBLong(image,0x000000ffU); /* Blue mask */ |
| 2038 | (void) WriteBlobLSBLong(image,0xff000000U); /* Alpha mask */ |
cristy | 55388ab | 2012-05-01 00:01:47 +0000 | [diff] [blame] | 2039 | (void) WriteBlobLSBLong(image,0x73524742U); /* sRGB */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2040 | (void) WriteBlobLSBLong(image,(unsigned int) |
cristy | c554cc8 | 2012-08-12 19:55:34 +0000 | [diff] [blame] | 2041 | (image->chromaticity.red_primary.x*0x40000000)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2042 | (void) WriteBlobLSBLong(image,(unsigned int) |
cristy | c554cc8 | 2012-08-12 19:55:34 +0000 | [diff] [blame] | 2043 | (image->chromaticity.red_primary.y*0x40000000)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2044 | (void) WriteBlobLSBLong(image,(unsigned int) |
cristy | c554cc8 | 2012-08-12 19:55:34 +0000 | [diff] [blame] | 2045 | ((1.000f-(image->chromaticity.red_primary.x+ |
| 2046 | image->chromaticity.red_primary.y))*0x40000000)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2047 | (void) WriteBlobLSBLong(image,(unsigned int) |
cristy | c554cc8 | 2012-08-12 19:55:34 +0000 | [diff] [blame] | 2048 | (image->chromaticity.green_primary.x*0x40000000)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2049 | (void) WriteBlobLSBLong(image,(unsigned int) |
cristy | c554cc8 | 2012-08-12 19:55:34 +0000 | [diff] [blame] | 2050 | (image->chromaticity.green_primary.y*0x40000000)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2051 | (void) WriteBlobLSBLong(image,(unsigned int) |
cristy | c554cc8 | 2012-08-12 19:55:34 +0000 | [diff] [blame] | 2052 | ((1.000f-(image->chromaticity.green_primary.x+ |
| 2053 | image->chromaticity.green_primary.y))*0x40000000)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2054 | (void) WriteBlobLSBLong(image,(unsigned int) |
cristy | c554cc8 | 2012-08-12 19:55:34 +0000 | [diff] [blame] | 2055 | (image->chromaticity.blue_primary.x*0x40000000)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2056 | (void) WriteBlobLSBLong(image,(unsigned int) |
cristy | c554cc8 | 2012-08-12 19:55:34 +0000 | [diff] [blame] | 2057 | (image->chromaticity.blue_primary.y*0x40000000)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2058 | (void) WriteBlobLSBLong(image,(unsigned int) |
cristy | c554cc8 | 2012-08-12 19:55:34 +0000 | [diff] [blame] | 2059 | ((1.000f-(image->chromaticity.blue_primary.x+ |
| 2060 | image->chromaticity.blue_primary.y))*0x40000000)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2061 | (void) WriteBlobLSBLong(image,(unsigned int) |
cristy | c554cc8 | 2012-08-12 19:55:34 +0000 | [diff] [blame] | 2062 | (bmp_info.gamma_scale.x*0x10000)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2063 | (void) WriteBlobLSBLong(image,(unsigned int) |
cristy | c554cc8 | 2012-08-12 19:55:34 +0000 | [diff] [blame] | 2064 | (bmp_info.gamma_scale.y*0x10000)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2065 | (void) WriteBlobLSBLong(image,(unsigned int) |
cristy | c554cc8 | 2012-08-12 19:55:34 +0000 | [diff] [blame] | 2066 | (bmp_info.gamma_scale.z*0x10000)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2067 | if ((image->rendering_intent != UndefinedIntent) || |
| 2068 | (profile != (StringInfo *) NULL)) |
| 2069 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2070 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2071 | intent; |
| 2072 | |
| 2073 | switch ((int) image->rendering_intent) |
| 2074 | { |
| 2075 | case SaturationIntent: |
| 2076 | { |
| 2077 | intent=LCS_GM_BUSINESS; |
| 2078 | break; |
| 2079 | } |
| 2080 | case RelativeIntent: |
| 2081 | { |
| 2082 | intent=LCS_GM_GRAPHICS; |
| 2083 | break; |
| 2084 | } |
| 2085 | case PerceptualIntent: |
| 2086 | { |
| 2087 | intent=LCS_GM_IMAGES; |
| 2088 | break; |
| 2089 | } |
| 2090 | case AbsoluteIntent: |
| 2091 | { |
| 2092 | intent=LCS_GM_ABS_COLORIMETRIC; |
| 2093 | break; |
| 2094 | } |
| 2095 | default: |
| 2096 | { |
| 2097 | intent=0; |
| 2098 | break; |
| 2099 | } |
| 2100 | } |
| 2101 | (void) WriteBlobLSBLong(image,(unsigned int) intent); |
| 2102 | (void) WriteBlobLSBLong(image,0x00); /* dummy profile data */ |
| 2103 | (void) WriteBlobLSBLong(image,0x00); /* dummy profile length */ |
| 2104 | (void) WriteBlobLSBLong(image,0x00); /* reserved */ |
| 2105 | } |
| 2106 | } |
| 2107 | if (image->storage_class == PseudoClass) |
| 2108 | { |
| 2109 | unsigned char |
| 2110 | *bmp_colormap; |
| 2111 | |
| 2112 | /* |
| 2113 | Dump colormap to file. |
| 2114 | */ |
| 2115 | if (image->debug != MagickFalse) |
| 2116 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 2117 | " Colormap: %.20g entries",(double) image->colors); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2118 | bmp_colormap=(unsigned char *) AcquireQuantumMemory((size_t) (1UL << |
| 2119 | bmp_info.bits_per_pixel),4*sizeof(*bmp_colormap)); |
| 2120 | if (bmp_colormap == (unsigned char *) NULL) |
| 2121 | ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
| 2122 | q=bmp_colormap; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2123 | for (i=0; i < (ssize_t) MagickMin((ssize_t) image->colors,(ssize_t) bmp_info.number_colors); i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2124 | { |
cristy | a321eb7 | 2013-06-23 10:42:37 +0000 | [diff] [blame] | 2125 | *q++=ScaleQuantumToChar(ClampToQuantum(image->colormap[i].blue)); |
| 2126 | *q++=ScaleQuantumToChar(ClampToQuantum(image->colormap[i].green)); |
| 2127 | *q++=ScaleQuantumToChar(ClampToQuantum(image->colormap[i].red)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2128 | if (type > 2) |
| 2129 | *q++=(unsigned char) 0x0; |
| 2130 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2131 | for ( ; i < (ssize_t) (1UL << bmp_info.bits_per_pixel); i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2132 | { |
| 2133 | *q++=(unsigned char) 0x00; |
| 2134 | *q++=(unsigned char) 0x00; |
| 2135 | *q++=(unsigned char) 0x00; |
| 2136 | if (type > 2) |
| 2137 | *q++=(unsigned char) 0x00; |
| 2138 | } |
| 2139 | if (type <= 2) |
| 2140 | (void) WriteBlob(image,(size_t) (3*(1L << bmp_info.bits_per_pixel)), |
| 2141 | bmp_colormap); |
| 2142 | else |
| 2143 | (void) WriteBlob(image,(size_t) (4*(1L << bmp_info.bits_per_pixel)), |
| 2144 | bmp_colormap); |
| 2145 | bmp_colormap=(unsigned char *) RelinquishMagickMemory(bmp_colormap); |
| 2146 | } |
| 2147 | if (image->debug != MagickFalse) |
| 2148 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | df40958 | 2015-06-12 16:35:04 +0000 | [diff] [blame] | 2149 | " Pixels: %lu bytes",bmp_info.image_size); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2150 | (void) WriteBlob(image,(size_t) bmp_info.image_size,pixels); |
cristy | 0553bd5 | 2013-06-30 15:53:50 +0000 | [diff] [blame] | 2151 | pixel_info=RelinquishVirtualMemory(pixel_info); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2152 | if (GetNextImageInList(image) == (Image *) NULL) |
| 2153 | break; |
| 2154 | image=SyncNextImageInList(image); |
| 2155 | status=SetImageProgress(image,SaveImagesTag,scene++, |
| 2156 | GetImageListLength(image)); |
| 2157 | if (status == MagickFalse) |
| 2158 | break; |
| 2159 | } while (image_info->adjoin != MagickFalse); |
| 2160 | (void) CloseBlob(image); |
| 2161 | return(MagickTrue); |
cristy | 84af0c3 | 2013-06-23 18:08:28 +0000 | [diff] [blame] | 2162 | } |