cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1 | /* |
| 2 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3 | % % |
| 4 | % % |
| 5 | % % |
| 6 | % X X CCCC FFFFF % |
| 7 | % X X C F % |
| 8 | % X C FFF % |
| 9 | % X X C F % |
| 10 | % X X CCCC F % |
| 11 | % % |
| 12 | % % |
| 13 | % Read GIMP XCF Image Format % |
| 14 | % % |
| 15 | % Software Design % |
| 16 | % Leonard Rosenthol % |
| 17 | % November 2001 % |
| 18 | % % |
| 19 | % % |
Cristy | 7ce65e7 | 2015-12-12 18:03:16 -0500 | [diff] [blame] | 20 | % Copyright 1999-2016 ImageMagick Studio LLC, a non-profit organization % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 21 | % dedicated to making software imaging solutions freely available. % |
| 22 | % % |
| 23 | % You may not use this file except in compliance with the License. You may % |
| 24 | % obtain a copy of the License at % |
| 25 | % % |
| 26 | % http://www.imagemagick.org/script/license.php % |
| 27 | % % |
| 28 | % Unless required by applicable law or agreed to in writing, software % |
| 29 | % distributed under the License is distributed on an "AS IS" BASIS, % |
| 30 | % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % |
| 31 | % See the License for the specific language governing permissions and % |
| 32 | % limitations under the License. % |
| 33 | % % |
| 34 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 35 | % |
| 36 | % |
| 37 | */ |
| 38 | |
| 39 | /* |
| 40 | Include declarations. |
| 41 | */ |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 42 | #include "MagickCore/studio.h" |
| 43 | #include "MagickCore/blob.h" |
| 44 | #include "MagickCore/blob-private.h" |
| 45 | #include "MagickCore/cache.h" |
| 46 | #include "MagickCore/color.h" |
| 47 | #include "MagickCore/composite.h" |
| 48 | #include "MagickCore/exception.h" |
| 49 | #include "MagickCore/exception-private.h" |
| 50 | #include "MagickCore/image.h" |
| 51 | #include "MagickCore/image-private.h" |
| 52 | #include "MagickCore/list.h" |
| 53 | #include "MagickCore/magick.h" |
| 54 | #include "MagickCore/memory_.h" |
| 55 | #include "MagickCore/pixel.h" |
| 56 | #include "MagickCore/pixel-accessor.h" |
| 57 | #include "MagickCore/quantize.h" |
| 58 | #include "MagickCore/quantum-private.h" |
| 59 | #include "MagickCore/static.h" |
| 60 | #include "MagickCore/string_.h" |
| 61 | #include "MagickCore/module.h" |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 62 | |
| 63 | /* |
| 64 | Typedef declarations. |
| 65 | */ |
| 66 | typedef enum |
| 67 | { |
| 68 | GIMP_RGB, |
| 69 | GIMP_GRAY, |
| 70 | GIMP_INDEXED |
| 71 | } GimpImageBaseType; |
| 72 | |
| 73 | typedef enum |
| 74 | { |
| 75 | PROP_END = 0, |
| 76 | PROP_COLORMAP = 1, |
| 77 | PROP_ACTIVE_LAYER = 2, |
| 78 | PROP_ACTIVE_CHANNEL = 3, |
| 79 | PROP_SELECTION = 4, |
| 80 | PROP_FLOATING_SELECTION = 5, |
| 81 | PROP_OPACITY = 6, |
| 82 | PROP_MODE = 7, |
| 83 | PROP_VISIBLE = 8, |
| 84 | PROP_LINKED = 9, |
| 85 | PROP_PRESERVE_TRANSPARENCY = 10, |
| 86 | PROP_APPLY_MASK = 11, |
| 87 | PROP_EDIT_MASK = 12, |
| 88 | PROP_SHOW_MASK = 13, |
| 89 | PROP_SHOW_MASKED = 14, |
| 90 | PROP_OFFSETS = 15, |
| 91 | PROP_COLOR = 16, |
| 92 | PROP_COMPRESSION = 17, |
| 93 | PROP_GUIDES = 18, |
| 94 | PROP_RESOLUTION = 19, |
| 95 | PROP_TATTOO = 20, |
| 96 | PROP_PARASITES = 21, |
| 97 | PROP_UNIT = 22, |
| 98 | PROP_PATHS = 23, |
| 99 | PROP_USER_UNIT = 24 |
| 100 | } PropType; |
| 101 | |
| 102 | typedef enum |
| 103 | { |
| 104 | COMPRESS_NONE = 0, |
| 105 | COMPRESS_RLE = 1, |
| 106 | COMPRESS_ZLIB = 2, /* unused */ |
| 107 | COMPRESS_FRACTAL = 3 /* unused */ |
| 108 | } XcfCompressionType; |
| 109 | |
| 110 | typedef struct |
| 111 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 112 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 113 | width, |
| 114 | height, |
| 115 | image_type, |
| 116 | bytes_per_pixel; |
| 117 | |
| 118 | int |
| 119 | compression; |
| 120 | |
| 121 | size_t |
| 122 | file_size; |
| 123 | |
cristy | 2cbb3b3 | 2012-04-01 19:11:10 +0000 | [diff] [blame] | 124 | size_t |
| 125 | number_layers; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 126 | } XCFDocInfo; |
| 127 | |
| 128 | typedef struct |
| 129 | { |
| 130 | char |
| 131 | name[1024]; |
| 132 | |
| 133 | unsigned int |
| 134 | active; |
| 135 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 136 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 137 | width, |
| 138 | height, |
| 139 | type, |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 140 | alpha, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 141 | visible, |
| 142 | linked, |
| 143 | preserve_trans, |
| 144 | apply_mask, |
| 145 | show_mask, |
| 146 | edit_mask, |
| 147 | floating_offset; |
| 148 | |
| 149 | ssize_t |
| 150 | offset_x, |
| 151 | offset_y; |
| 152 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 153 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 154 | mode, |
| 155 | tattoo; |
| 156 | |
| 157 | Image |
| 158 | *image; |
| 159 | } XCFLayerInfo; |
| 160 | |
| 161 | #define TILE_WIDTH 64 |
| 162 | #define TILE_HEIGHT 64 |
| 163 | |
| 164 | typedef struct |
| 165 | { |
| 166 | unsigned char |
| 167 | red, |
| 168 | green, |
| 169 | blue, |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 170 | alpha; |
cristy | 101ab70 | 2011-10-13 13:06:32 +0000 | [diff] [blame] | 171 | } XCFPixelInfo; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 172 | |
| 173 | /* |
| 174 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 175 | % % |
| 176 | % % |
| 177 | % % |
| 178 | % I s X C F % |
| 179 | % % |
| 180 | % % |
| 181 | % % |
| 182 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 183 | % |
| 184 | % IsXCF() returns MagickTrue if the image format type, identified by the |
| 185 | % magick string, is XCF (GIMP native format). |
| 186 | % |
| 187 | % The format of the IsXCF method is: |
| 188 | % |
| 189 | % MagickBooleanType IsXCF(const unsigned char *magick,const size_t length) |
| 190 | % |
| 191 | % A description of each parameter follows: |
| 192 | % |
| 193 | % o magick: compare image format pattern against these bytes. |
| 194 | % |
| 195 | % o length: Specifies the length of the magick string. |
| 196 | % |
| 197 | % |
| 198 | */ |
| 199 | static MagickBooleanType IsXCF(const unsigned char *magick,const size_t length) |
| 200 | { |
| 201 | if (length < 8) |
| 202 | return(MagickFalse); |
| 203 | if (LocaleNCompare((char *) magick,"gimp xcf",8) == 0) |
| 204 | return(MagickTrue); |
| 205 | return(MagickFalse); |
| 206 | } |
| 207 | |
| 208 | typedef enum |
| 209 | { |
| 210 | GIMP_NORMAL_MODE, |
| 211 | GIMP_DISSOLVE_MODE, |
| 212 | GIMP_BEHIND_MODE, |
| 213 | GIMP_MULTIPLY_MODE, |
| 214 | GIMP_SCREEN_MODE, |
| 215 | GIMP_OVERLAY_MODE, |
| 216 | GIMP_DIFFERENCE_MODE, |
| 217 | GIMP_ADDITION_MODE, |
| 218 | GIMP_SUBTRACT_MODE, |
| 219 | GIMP_DARKEN_ONLY_MODE, |
| 220 | GIMP_LIGHTEN_ONLY_MODE, |
| 221 | GIMP_HUE_MODE, |
| 222 | GIMP_SATURATION_MODE, |
| 223 | GIMP_COLOR_MODE, |
| 224 | GIMP_VALUE_MODE, |
| 225 | GIMP_DIVIDE_MODE, |
| 226 | GIMP_DODGE_MODE, |
| 227 | GIMP_BURN_MODE, |
| 228 | GIMP_HARDLIGHT_MODE |
| 229 | } GimpLayerModeEffects; |
| 230 | |
| 231 | /* |
| 232 | Simple utility routine to convert between PSD blending modes and |
| 233 | ImageMagick compositing operators |
| 234 | */ |
| 235 | static CompositeOperator GIMPBlendModeToCompositeOperator( |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 236 | size_t blendMode) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 237 | { |
| 238 | switch ( blendMode ) |
| 239 | { |
cristy | e47116d | 2014-04-12 23:23:02 +0000 | [diff] [blame] | 240 | case GIMP_NORMAL_MODE: return(OverCompositeOp); |
| 241 | case GIMP_DISSOLVE_MODE: return(DissolveCompositeOp); |
| 242 | case GIMP_MULTIPLY_MODE: return(MultiplyCompositeOp); |
| 243 | case GIMP_SCREEN_MODE: return(ScreenCompositeOp); |
| 244 | case GIMP_OVERLAY_MODE: return(OverlayCompositeOp); |
| 245 | case GIMP_DIFFERENCE_MODE: return(DifferenceCompositeOp); |
| 246 | case GIMP_ADDITION_MODE: return(ModulusAddCompositeOp); |
| 247 | case GIMP_SUBTRACT_MODE: return(ModulusSubtractCompositeOp); |
| 248 | case GIMP_DARKEN_ONLY_MODE: return(DarkenCompositeOp); |
| 249 | case GIMP_LIGHTEN_ONLY_MODE: return(LightenCompositeOp); |
| 250 | case GIMP_HUE_MODE: return(HueCompositeOp); |
| 251 | case GIMP_SATURATION_MODE: return(SaturateCompositeOp); |
| 252 | case GIMP_COLOR_MODE: return(ColorizeCompositeOp); |
| 253 | case GIMP_DODGE_MODE: return(ColorDodgeCompositeOp); |
| 254 | case GIMP_BURN_MODE: return(ColorBurnCompositeOp); |
| 255 | case GIMP_HARDLIGHT_MODE: return(HardLightCompositeOp); |
| 256 | case GIMP_DIVIDE_MODE: return(DivideDstCompositeOp); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 257 | /* these are the ones we don't support...yet */ |
cristy | e47116d | 2014-04-12 23:23:02 +0000 | [diff] [blame] | 258 | case GIMP_BEHIND_MODE: return(OverCompositeOp); |
| 259 | case GIMP_VALUE_MODE: return(OverCompositeOp); |
| 260 | default: return(OverCompositeOp); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 261 | } |
| 262 | } |
| 263 | |
| 264 | /* |
| 265 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 266 | % % |
| 267 | % % |
| 268 | % % |
| 269 | + R e a d B l o b S t r i n g W i t h L o n g S i z e % |
| 270 | % % |
| 271 | % % |
| 272 | % % |
| 273 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 274 | % |
| 275 | % ReadBlobStringWithLongSize reads characters from a blob or file |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 276 | % starting with a ssize_t length byte and then characters to that length |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 277 | % |
| 278 | % The format of the ReadBlobStringWithLongSize method is: |
| 279 | % |
| 280 | % char *ReadBlobStringWithLongSize(Image *image,char *string) |
| 281 | % |
| 282 | % A description of each parameter follows: |
| 283 | % |
| 284 | % o image: the image. |
| 285 | % |
| 286 | % o string: the address of a character buffer. |
| 287 | % |
| 288 | */ |
| 289 | |
cristy | c82a27b | 2011-10-21 01:07:16 +0000 | [diff] [blame] | 290 | static char *ReadBlobStringWithLongSize(Image *image,char *string,size_t max, |
| 291 | ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 292 | { |
| 293 | int |
| 294 | c; |
| 295 | |
| 296 | MagickOffsetType |
| 297 | offset; |
| 298 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 299 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 300 | i; |
| 301 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 302 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 303 | length; |
| 304 | |
| 305 | assert(image != (Image *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 306 | assert(image->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 307 | assert(max != 0); |
| 308 | if (image->debug != MagickFalse) |
| 309 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 310 | length=ReadBlobMSBLong(image); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 311 | for (i=0; i < (ssize_t) MagickMin(length,max-1); i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 312 | { |
| 313 | c=ReadBlobByte(image); |
| 314 | if (c == EOF) |
| 315 | return((char *) NULL); |
| 316 | string[i]=(char) c; |
| 317 | } |
| 318 | string[i]='\0'; |
| 319 | offset=SeekBlob(image,(MagickOffsetType) (length-i),SEEK_CUR); |
| 320 | if (offset < 0) |
cristy | c82a27b | 2011-10-21 01:07:16 +0000 | [diff] [blame] | 321 | (void) ThrowMagickException(exception,GetMagickModule(), |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 322 | CorruptImageError,"ImproperImageHeader","`%s'",image->filename); |
| 323 | return(string); |
| 324 | } |
| 325 | |
| 326 | static MagickBooleanType load_tile(Image *image,Image *tile_image, |
cristy | 018f07f | 2011-09-04 21:15:19 +0000 | [diff] [blame] | 327 | XCFDocInfo *inDocInfo,XCFLayerInfo *inLayerInfo,size_t data_length, |
| 328 | ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 329 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 330 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 331 | y; |
| 332 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 333 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 334 | x; |
| 335 | |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 336 | register Quantum |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 337 | *q; |
| 338 | |
| 339 | ssize_t |
| 340 | count; |
| 341 | |
| 342 | unsigned char |
| 343 | *graydata; |
| 344 | |
cristy | 101ab70 | 2011-10-13 13:06:32 +0000 | [diff] [blame] | 345 | XCFPixelInfo |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 346 | *xcfdata, |
| 347 | *xcfodata; |
| 348 | |
cristy | 101ab70 | 2011-10-13 13:06:32 +0000 | [diff] [blame] | 349 | xcfdata=(XCFPixelInfo *) AcquireQuantumMemory(data_length,sizeof(*xcfdata)); |
| 350 | if (xcfdata == (XCFPixelInfo *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 351 | ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", |
| 352 | image->filename); |
| 353 | xcfodata=xcfdata; |
| 354 | graydata=(unsigned char *) xcfdata; /* used by gray and indexed */ |
| 355 | count=ReadBlob(image,data_length,(unsigned char *) xcfdata); |
| 356 | if (count != (ssize_t) data_length) |
| 357 | ThrowBinaryException(CorruptImageError,"NotEnoughPixelData", |
| 358 | image->filename); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 359 | for (y=0; y < (ssize_t) tile_image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 360 | { |
cristy | 8415f06 | 2012-04-03 00:12:53 +0000 | [diff] [blame] | 361 | q=GetAuthenticPixels(tile_image,0,y,tile_image->columns,1,exception); |
cristy | acd2ed2 | 2011-08-30 01:44:23 +0000 | [diff] [blame] | 362 | if (q == (Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 363 | break; |
| 364 | if (inDocInfo->image_type == GIMP_GRAY) |
| 365 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 366 | for (x=0; x < (ssize_t) tile_image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 367 | { |
cristy | af6eb93 | 2012-01-01 01:22:59 +0000 | [diff] [blame] | 368 | SetPixelGray(tile_image,ScaleCharToQuantum(*graydata),q); |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 369 | SetPixelAlpha(tile_image,ScaleCharToQuantum((unsigned char) |
| 370 | inLayerInfo->alpha),q); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 371 | graydata++; |
cristy | ed23157 | 2011-07-14 02:18:59 +0000 | [diff] [blame] | 372 | q+=GetPixelChannels(tile_image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 373 | } |
| 374 | } |
| 375 | else |
| 376 | if (inDocInfo->image_type == GIMP_RGB) |
| 377 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 378 | for (x=0; x < (ssize_t) tile_image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 379 | { |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 380 | SetPixelRed(tile_image,ScaleCharToQuantum(xcfdata->red),q); |
| 381 | SetPixelGreen(tile_image,ScaleCharToQuantum(xcfdata->green),q); |
| 382 | SetPixelBlue(tile_image,ScaleCharToQuantum(xcfdata->blue),q); |
cristy | ff08add | 2012-04-02 00:33:26 +0000 | [diff] [blame] | 383 | SetPixelAlpha(tile_image,xcfdata->alpha == 255U ? TransparentAlpha : |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 384 | ScaleCharToQuantum((unsigned char) inLayerInfo->alpha),q); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 385 | xcfdata++; |
cristy | ed23157 | 2011-07-14 02:18:59 +0000 | [diff] [blame] | 386 | q+=GetPixelChannels(tile_image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 387 | } |
| 388 | } |
| 389 | if (SyncAuthenticPixels(tile_image,exception) == MagickFalse) |
| 390 | break; |
| 391 | } |
cristy | 101ab70 | 2011-10-13 13:06:32 +0000 | [diff] [blame] | 392 | xcfodata=(XCFPixelInfo *) RelinquishMagickMemory(xcfodata); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 393 | return MagickTrue; |
| 394 | } |
| 395 | |
| 396 | static MagickBooleanType load_tile_rle(Image *image,Image *tile_image, |
cristy | 018f07f | 2011-09-04 21:15:19 +0000 | [diff] [blame] | 397 | XCFDocInfo *inDocInfo,XCFLayerInfo *inLayerInfo,size_t data_length, |
| 398 | ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 399 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 400 | MagickOffsetType |
| 401 | size; |
| 402 | |
cristy | 2cbb3b3 | 2012-04-01 19:11:10 +0000 | [diff] [blame] | 403 | Quantum |
| 404 | alpha; |
| 405 | |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 406 | register Quantum |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 407 | *q; |
| 408 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 409 | size_t |
| 410 | length; |
| 411 | |
cristy | c6da28e | 2011-04-28 01:41:35 +0000 | [diff] [blame] | 412 | ssize_t |
| 413 | bytes_per_pixel, |
| 414 | count, |
| 415 | i, |
| 416 | j; |
| 417 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 418 | unsigned char |
| 419 | data, |
| 420 | pixel, |
| 421 | *xcfdata, |
| 422 | *xcfodata, |
| 423 | *xcfdatalimit; |
| 424 | |
| 425 | bytes_per_pixel=(ssize_t) inDocInfo->bytes_per_pixel; |
| 426 | xcfdata=(unsigned char *) AcquireQuantumMemory(data_length,sizeof(*xcfdata)); |
| 427 | if (xcfdata == (unsigned char *) NULL) |
| 428 | ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", |
| 429 | image->filename); |
| 430 | xcfodata=xcfdata; |
| 431 | count=ReadBlob(image, (size_t) data_length, xcfdata); |
| 432 | xcfdatalimit = xcfodata+count-1; |
cristy | 2cbb3b3 | 2012-04-01 19:11:10 +0000 | [diff] [blame] | 433 | alpha=ScaleCharToQuantum((unsigned char) inLayerInfo->alpha); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 434 | for (i=0; i < (ssize_t) bytes_per_pixel; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 435 | { |
cristy | 8415f06 | 2012-04-03 00:12:53 +0000 | [diff] [blame] | 436 | q=GetAuthenticPixels(tile_image,0,0,tile_image->columns,tile_image->rows, |
cristy | 2e8bde0 | 2010-06-22 11:03:25 +0000 | [diff] [blame] | 437 | exception); |
cristy | 2cbb3b3 | 2012-04-01 19:11:10 +0000 | [diff] [blame] | 438 | if (q == (Quantum *) NULL) |
| 439 | continue; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 440 | size=(MagickOffsetType) tile_image->rows*tile_image->columns; |
| 441 | while (size > 0) |
| 442 | { |
| 443 | if (xcfdata > xcfdatalimit) |
| 444 | goto bogus_rle; |
| 445 | pixel=(*xcfdata++); |
| 446 | length=(size_t) pixel; |
| 447 | if (length >= 128) |
| 448 | { |
| 449 | length=255-(length-1); |
| 450 | if (length == 128) |
| 451 | { |
| 452 | if (xcfdata >= xcfdatalimit) |
| 453 | goto bogus_rle; |
| 454 | length=(size_t) ((*xcfdata << 8) + xcfdata[1]); |
| 455 | xcfdata+=2; |
| 456 | } |
cristy | c72dd36 | 2014-06-07 22:12:02 +0000 | [diff] [blame] | 457 | size-=length; |
| 458 | if (size < 0) |
| 459 | goto bogus_rle; |
| 460 | if (&xcfdata[length-1] > xcfdatalimit) |
| 461 | goto bogus_rle; |
| 462 | while (length-- > 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 463 | { |
cristy | c72dd36 | 2014-06-07 22:12:02 +0000 | [diff] [blame] | 464 | data=(*xcfdata++); |
| 465 | switch (i) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 466 | { |
cristy | c72dd36 | 2014-06-07 22:12:02 +0000 | [diff] [blame] | 467 | case 0: |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 468 | { |
cristy | c72dd36 | 2014-06-07 22:12:02 +0000 | [diff] [blame] | 469 | if (inDocInfo->image_type == GIMP_GRAY) |
| 470 | SetPixelGray(tile_image,ScaleCharToQuantum(data),q); |
| 471 | else |
| 472 | { |
| 473 | SetPixelRed(tile_image,ScaleCharToQuantum(data),q); |
cristy | 60baf16 | 2014-06-07 20:42:33 +0000 | [diff] [blame] | 474 | SetPixelGreen(tile_image,ScaleCharToQuantum(data),q); |
cristy | c72dd36 | 2014-06-07 22:12:02 +0000 | [diff] [blame] | 475 | SetPixelBlue(tile_image,ScaleCharToQuantum(data),q); |
| 476 | } |
| 477 | SetPixelAlpha(tile_image,alpha,q); |
| 478 | break; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 479 | } |
cristy | c72dd36 | 2014-06-07 22:12:02 +0000 | [diff] [blame] | 480 | case 1: |
| 481 | { |
| 482 | if (inDocInfo->image_type == GIMP_GRAY) |
| 483 | SetPixelAlpha(tile_image,ScaleCharToQuantum(data),q); |
| 484 | else |
| 485 | SetPixelGreen(tile_image,ScaleCharToQuantum(data),q); |
| 486 | break; |
| 487 | } |
| 488 | case 2: |
| 489 | { |
| 490 | SetPixelBlue(tile_image,ScaleCharToQuantum(data),q); |
| 491 | break; |
| 492 | } |
| 493 | case 3: |
| 494 | { |
| 495 | SetPixelAlpha(tile_image,ScaleCharToQuantum(data),q); |
| 496 | break; |
| 497 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 498 | } |
cristy | c72dd36 | 2014-06-07 22:12:02 +0000 | [diff] [blame] | 499 | q+=GetPixelChannels(tile_image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 500 | } |
cristy | c72dd36 | 2014-06-07 22:12:02 +0000 | [diff] [blame] | 501 | } |
| 502 | else |
| 503 | { |
| 504 | length+=1; |
| 505 | if (length == 128) |
| 506 | { |
| 507 | if (xcfdata >= xcfdatalimit) |
| 508 | goto bogus_rle; |
| 509 | length=(size_t) ((*xcfdata << 8) + xcfdata[1]); |
| 510 | xcfdata+=2; |
| 511 | } |
| 512 | size-=length; |
| 513 | if (size < 0) |
| 514 | goto bogus_rle; |
| 515 | if (xcfdata > xcfdatalimit) |
| 516 | goto bogus_rle; |
| 517 | pixel=(*xcfdata++); |
| 518 | for (j=0; j < (ssize_t) length; j++) |
| 519 | { |
| 520 | data=pixel; |
| 521 | switch (i) |
| 522 | { |
| 523 | case 0: |
| 524 | { |
| 525 | if (inDocInfo->image_type == GIMP_GRAY) |
| 526 | SetPixelGray(tile_image,ScaleCharToQuantum(data),q); |
| 527 | else |
| 528 | { |
| 529 | SetPixelRed(tile_image,ScaleCharToQuantum(data),q); |
| 530 | SetPixelGreen(tile_image,ScaleCharToQuantum(data),q); |
| 531 | SetPixelBlue(tile_image,ScaleCharToQuantum(data),q); |
| 532 | } |
| 533 | SetPixelAlpha(tile_image,alpha,q); |
| 534 | break; |
| 535 | } |
| 536 | case 1: |
| 537 | { |
| 538 | if (inDocInfo->image_type == GIMP_GRAY) |
| 539 | SetPixelAlpha(tile_image,ScaleCharToQuantum(data),q); |
| 540 | else |
| 541 | SetPixelGreen(tile_image,ScaleCharToQuantum(data),q); |
| 542 | break; |
| 543 | } |
| 544 | case 2: |
| 545 | { |
| 546 | SetPixelBlue(tile_image,ScaleCharToQuantum(data),q); |
| 547 | break; |
| 548 | } |
| 549 | case 3: |
| 550 | { |
| 551 | SetPixelAlpha(tile_image,ScaleCharToQuantum(data),q); |
| 552 | break; |
| 553 | } |
| 554 | } |
| 555 | q+=GetPixelChannels(tile_image); |
| 556 | } |
| 557 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 558 | } |
cristy | c72dd36 | 2014-06-07 22:12:02 +0000 | [diff] [blame] | 559 | if (SyncAuthenticPixels(tile_image,exception) == MagickFalse) |
| 560 | break; |
| 561 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 562 | xcfodata=(unsigned char *) RelinquishMagickMemory(xcfodata); |
| 563 | return(MagickTrue); |
| 564 | |
| 565 | bogus_rle: |
| 566 | if (xcfodata != (unsigned char *) NULL) |
| 567 | xcfodata=(unsigned char *) RelinquishMagickMemory(xcfodata); |
| 568 | return(MagickFalse); |
| 569 | } |
| 570 | |
| 571 | static MagickBooleanType load_level(Image *image,XCFDocInfo *inDocInfo, |
cristy | 2cbb3b3 | 2012-04-01 19:11:10 +0000 | [diff] [blame] | 572 | XCFLayerInfo *inLayerInfo,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 573 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 574 | int |
| 575 | destLeft = 0, |
| 576 | destTop = 0; |
| 577 | |
| 578 | Image* |
| 579 | tile_image; |
| 580 | |
| 581 | MagickBooleanType |
| 582 | status; |
| 583 | |
| 584 | MagickOffsetType |
| 585 | saved_pos, |
| 586 | offset, |
| 587 | offset2; |
| 588 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 589 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 590 | i; |
| 591 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 592 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 593 | width, |
| 594 | height, |
| 595 | ntiles, |
| 596 | ntile_rows, |
| 597 | ntile_cols, |
| 598 | tile_image_width, |
| 599 | tile_image_height; |
| 600 | |
| 601 | /* start reading the data */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 602 | width=ReadBlobMSBLong(image); |
| 603 | height=ReadBlobMSBLong(image); |
| 604 | |
| 605 | /* read in the first tile offset. |
| 606 | * if it is '0', then this tile level is empty |
| 607 | * and we can simply return. |
| 608 | */ |
| 609 | offset=(MagickOffsetType) ReadBlobMSBLong(image); |
| 610 | if (offset == 0) |
| 611 | return(MagickTrue); |
| 612 | /* Initialise the reference for the in-memory tile-compression |
| 613 | */ |
| 614 | ntile_rows=(height+TILE_HEIGHT-1)/TILE_HEIGHT; |
| 615 | ntile_cols=(width+TILE_WIDTH-1)/TILE_WIDTH; |
| 616 | ntiles=ntile_rows*ntile_cols; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 617 | for (i = 0; i < (ssize_t) ntiles; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 618 | { |
| 619 | status=MagickFalse; |
| 620 | if (offset == 0) |
| 621 | ThrowBinaryException(CorruptImageError,"NotEnoughTiles",image->filename); |
| 622 | /* save the current position as it is where the |
| 623 | * next tile offset is stored. |
| 624 | */ |
| 625 | saved_pos=TellBlob(image); |
| 626 | /* read in the offset of the next tile so we can calculate the amount |
| 627 | of data needed for this tile*/ |
| 628 | offset2=(MagickOffsetType)ReadBlobMSBLong(image); |
| 629 | /* if the offset is 0 then we need to read in the maximum possible |
| 630 | allowing for negative compression */ |
| 631 | if (offset2 == 0) |
| 632 | offset2=(MagickOffsetType) (offset + TILE_WIDTH * TILE_WIDTH * 4* 1.5); |
| 633 | /* seek to the tile offset */ |
| 634 | offset=SeekBlob(image, offset, SEEK_SET); |
| 635 | |
cristy | 46e350e | 2012-02-11 18:56:14 +0000 | [diff] [blame] | 636 | /* |
| 637 | Allocate the image for the tile. NOTE: the last tile in a row or |
| 638 | column may not be a full tile! |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 639 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 640 | tile_image_width=(size_t) (destLeft == (int) ntile_cols-1 ? |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 641 | (int) width % TILE_WIDTH : TILE_WIDTH); |
cristy | 46e350e | 2012-02-11 18:56:14 +0000 | [diff] [blame] | 642 | if (tile_image_width == 0) |
| 643 | tile_image_width=TILE_WIDTH; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 644 | tile_image_height = (size_t) (destTop == (int) ntile_rows-1 ? |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 645 | (int) height % TILE_HEIGHT : TILE_HEIGHT); |
cristy | 46e350e | 2012-02-11 18:56:14 +0000 | [diff] [blame] | 646 | if (tile_image_height == 0) |
| 647 | tile_image_height=TILE_HEIGHT; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 648 | tile_image=CloneImage(inLayerInfo->image,tile_image_width, |
| 649 | tile_image_height,MagickTrue,exception); |
| 650 | |
| 651 | /* read in the tile */ |
| 652 | switch (inDocInfo->compression) |
| 653 | { |
| 654 | case COMPRESS_NONE: |
cristy | 018f07f | 2011-09-04 21:15:19 +0000 | [diff] [blame] | 655 | if (load_tile(image,tile_image,inDocInfo,inLayerInfo,(size_t) (offset2-offset),exception) == 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 656 | status=MagickTrue; |
| 657 | break; |
| 658 | case COMPRESS_RLE: |
| 659 | if (load_tile_rle (image,tile_image,inDocInfo,inLayerInfo, |
cristy | 018f07f | 2011-09-04 21:15:19 +0000 | [diff] [blame] | 660 | (int) (offset2-offset),exception) == 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 661 | status=MagickTrue; |
| 662 | break; |
| 663 | case COMPRESS_ZLIB: |
| 664 | ThrowBinaryException(CoderError,"ZipCompressNotSupported", |
| 665 | image->filename) |
| 666 | case COMPRESS_FRACTAL: |
| 667 | ThrowBinaryException(CoderError,"FractalCompressNotSupported", |
| 668 | image->filename) |
| 669 | } |
| 670 | |
| 671 | /* composite the tile onto the layer's image, and then destroy it */ |
cristy | feb3e96 | 2012-03-29 17:25:55 +0000 | [diff] [blame] | 672 | (void) CompositeImage(inLayerInfo->image,tile_image,CopyCompositeOp, |
cristy | 547ca55 | 2012-03-31 16:15:43 +0000 | [diff] [blame] | 673 | MagickTrue,destLeft * TILE_WIDTH,destTop*TILE_HEIGHT,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 674 | tile_image=DestroyImage(tile_image); |
| 675 | |
| 676 | /* adjust tile position */ |
| 677 | destLeft++; |
| 678 | if (destLeft >= (int) ntile_cols) |
| 679 | { |
| 680 | destLeft = 0; |
| 681 | destTop++; |
| 682 | } |
| 683 | if (status != MagickFalse) |
| 684 | return(MagickFalse); |
| 685 | /* restore the saved position so we'll be ready to |
| 686 | * read the next offset. |
| 687 | */ |
| 688 | offset=SeekBlob(image, saved_pos, SEEK_SET); |
| 689 | /* read in the offset of the next tile */ |
| 690 | offset=(MagickOffsetType) ReadBlobMSBLong(image); |
| 691 | } |
| 692 | if (offset != 0) |
| 693 | ThrowBinaryException(CorruptImageError,"CorruptImage",image->filename) |
| 694 | return(MagickTrue); |
| 695 | } |
| 696 | |
| 697 | static MagickBooleanType load_hierarchy(Image *image,XCFDocInfo *inDocInfo, |
cristy | 2cbb3b3 | 2012-04-01 19:11:10 +0000 | [diff] [blame] | 698 | XCFLayerInfo *inLayer, ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 699 | { |
| 700 | MagickOffsetType |
| 701 | saved_pos, |
| 702 | offset, |
| 703 | junk; |
| 704 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 705 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 706 | width, |
| 707 | height, |
| 708 | bytes_per_pixel; |
| 709 | |
| 710 | width=ReadBlobMSBLong(image); |
cristy | da16f16 | 2011-02-19 23:52:17 +0000 | [diff] [blame] | 711 | (void) width; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 712 | height=ReadBlobMSBLong(image); |
cristy | da16f16 | 2011-02-19 23:52:17 +0000 | [diff] [blame] | 713 | (void) height; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 714 | bytes_per_pixel=inDocInfo->bytes_per_pixel=ReadBlobMSBLong(image); |
cristy | da16f16 | 2011-02-19 23:52:17 +0000 | [diff] [blame] | 715 | (void) bytes_per_pixel; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 716 | |
| 717 | /* load in the levels...we make sure that the number of levels |
| 718 | * calculated when the TileManager was created is the same |
| 719 | * as the number of levels found in the file. |
| 720 | */ |
| 721 | offset=(MagickOffsetType) ReadBlobMSBLong(image); /* top level */ |
| 722 | |
| 723 | /* discard offsets for layers below first, if any. |
| 724 | */ |
| 725 | do |
| 726 | { |
| 727 | junk=(MagickOffsetType) ReadBlobMSBLong(image); |
| 728 | } |
| 729 | while (junk != 0); |
| 730 | |
| 731 | /* save the current position as it is where the |
| 732 | * next level offset is stored. |
| 733 | */ |
| 734 | saved_pos=TellBlob(image); |
| 735 | |
| 736 | /* seek to the level offset */ |
| 737 | offset=SeekBlob(image, offset, SEEK_SET); |
| 738 | |
| 739 | /* read in the level */ |
cristy | 2cbb3b3 | 2012-04-01 19:11:10 +0000 | [diff] [blame] | 740 | if (load_level (image, inDocInfo, inLayer, exception) == 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 741 | return(MagickFalse); |
| 742 | /* restore the saved position so we'll be ready to |
| 743 | * read the next offset. |
| 744 | */ |
| 745 | offset=SeekBlob(image, saved_pos, SEEK_SET); |
| 746 | return(MagickTrue); |
| 747 | } |
| 748 | |
cristy | 2cbb3b3 | 2012-04-01 19:11:10 +0000 | [diff] [blame] | 749 | static MagickBooleanType ReadOneLayer(const ImageInfo *image_info,Image* image, |
| 750 | XCFDocInfo* inDocInfo,XCFLayerInfo *outLayer,const ssize_t layer, |
| 751 | ExceptionInfo *exception ) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 752 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 753 | MagickOffsetType |
| 754 | offset; |
| 755 | |
| 756 | unsigned int |
| 757 | foundPropEnd = 0; |
| 758 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 759 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 760 | hierarchy_offset, |
| 761 | layer_mask_offset; |
| 762 | |
| 763 | /* clear the block! */ |
| 764 | (void) ResetMagickMemory( outLayer, 0, sizeof( XCFLayerInfo ) ); |
| 765 | /* read in the layer width, height, type and name */ |
| 766 | outLayer->width = ReadBlobMSBLong(image); |
| 767 | outLayer->height = ReadBlobMSBLong(image); |
| 768 | outLayer->type = ReadBlobMSBLong(image); |
| 769 | (void) ReadBlobStringWithLongSize(image, outLayer->name, |
cristy | c82a27b | 2011-10-21 01:07:16 +0000 | [diff] [blame] | 770 | sizeof(outLayer->name),exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 771 | /* read the layer properties! */ |
| 772 | foundPropEnd = 0; |
| 773 | while ( (foundPropEnd == MagickFalse) && (EOFBlob(image) == MagickFalse) ) { |
| 774 | PropType prop_type = (PropType) ReadBlobMSBLong(image); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 775 | size_t prop_size = ReadBlobMSBLong(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 776 | switch (prop_type) |
| 777 | { |
| 778 | case PROP_END: |
| 779 | foundPropEnd = 1; |
| 780 | break; |
| 781 | case PROP_ACTIVE_LAYER: |
| 782 | outLayer->active = 1; |
| 783 | break; |
| 784 | case PROP_FLOATING_SELECTION: |
| 785 | outLayer->floating_offset = ReadBlobMSBLong(image); |
| 786 | break; |
| 787 | case PROP_OPACITY: |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 788 | outLayer->alpha = ReadBlobMSBLong(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 789 | break; |
| 790 | case PROP_VISIBLE: |
| 791 | outLayer->visible = ReadBlobMSBLong(image); |
| 792 | break; |
| 793 | case PROP_LINKED: |
| 794 | outLayer->linked = ReadBlobMSBLong(image); |
| 795 | break; |
| 796 | case PROP_PRESERVE_TRANSPARENCY: |
| 797 | outLayer->preserve_trans = ReadBlobMSBLong(image); |
| 798 | break; |
| 799 | case PROP_APPLY_MASK: |
| 800 | outLayer->apply_mask = ReadBlobMSBLong(image); |
| 801 | break; |
| 802 | case PROP_EDIT_MASK: |
| 803 | outLayer->edit_mask = ReadBlobMSBLong(image); |
| 804 | break; |
| 805 | case PROP_SHOW_MASK: |
| 806 | outLayer->show_mask = ReadBlobMSBLong(image); |
| 807 | break; |
| 808 | case PROP_OFFSETS: |
cristy | 6cff05d | 2010-09-02 11:22:46 +0000 | [diff] [blame] | 809 | outLayer->offset_x = (int) ReadBlobMSBLong(image); |
| 810 | outLayer->offset_y = (int) ReadBlobMSBLong(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 811 | break; |
| 812 | case PROP_MODE: |
| 813 | outLayer->mode = ReadBlobMSBLong(image); |
| 814 | break; |
| 815 | case PROP_TATTOO: |
| 816 | outLayer->preserve_trans = ReadBlobMSBLong(image); |
| 817 | break; |
| 818 | case PROP_PARASITES: |
| 819 | { |
cristy | d429702 | 2010-09-16 22:59:09 +0000 | [diff] [blame] | 820 | if (DiscardBlobBytes(image,prop_size) == MagickFalse) |
cristy | c82a27b | 2011-10-21 01:07:16 +0000 | [diff] [blame] | 821 | ThrowFileException(exception,CorruptImageError, |
cristy | d429702 | 2010-09-16 22:59:09 +0000 | [diff] [blame] | 822 | "UnexpectedEndOfFile",image->filename); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 823 | |
| 824 | /* |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 825 | ssize_t base = info->cp; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 826 | GimpParasite *p; |
| 827 | while (info->cp - base < prop_size) |
| 828 | { |
| 829 | p = xcf_load_parasite(info); |
| 830 | gimp_drawable_parasite_attach(GIMP_DRAWABLE(layer), p); |
| 831 | gimp_parasite_free(p); |
| 832 | } |
| 833 | if (info->cp - base != prop_size) |
| 834 | g_message ("Error detected while loading a layer's parasites"); |
| 835 | */ |
| 836 | } |
| 837 | break; |
| 838 | default: |
| 839 | /* g_message ("unexpected/unknown layer property: %d (skipping)", |
| 840 | prop_type); */ |
| 841 | |
| 842 | { |
| 843 | int buf[16]; |
| 844 | ssize_t amount; |
| 845 | |
| 846 | /* read over it... */ |
| 847 | while ((prop_size > 0) && (EOFBlob(image) == MagickFalse)) |
| 848 | { |
| 849 | amount = (ssize_t) MagickMin(16, prop_size); |
| 850 | amount = ReadBlob(image, (size_t) amount, (unsigned char *) &buf); |
| 851 | if (!amount) |
| 852 | ThrowBinaryException(CorruptImageError,"CorruptImage", |
| 853 | image->filename); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 854 | prop_size -= (size_t) MagickMin(16, (size_t) amount); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 855 | } |
| 856 | } |
| 857 | break; |
| 858 | } |
| 859 | } |
| 860 | |
| 861 | if (foundPropEnd == MagickFalse) |
| 862 | return(MagickFalse); |
cristy | 2cbb3b3 | 2012-04-01 19:11:10 +0000 | [diff] [blame] | 863 | /* allocate the image for this layer */ |
| 864 | if (image_info->number_scenes != 0) |
| 865 | { |
| 866 | ssize_t |
| 867 | scene; |
| 868 | |
| 869 | scene=inDocInfo->number_layers-layer-1; |
cristy | d9ecd04 | 2012-06-17 18:26:12 +0000 | [diff] [blame] | 870 | if (scene > (ssize_t) (image_info->scene+image_info->number_scenes-1)) |
cristy | 2cbb3b3 | 2012-04-01 19:11:10 +0000 | [diff] [blame] | 871 | { |
| 872 | outLayer->image=CloneImage(image,0,0,MagickTrue,exception); |
cristy | 8415f06 | 2012-04-03 00:12:53 +0000 | [diff] [blame] | 873 | if (outLayer->image == (Image *) NULL) |
| 874 | return(MagickFalse); |
| 875 | outLayer->image->page.x=outLayer->offset_x; |
| 876 | outLayer->image->page.y=outLayer->offset_y; |
| 877 | outLayer->image->page.width=outLayer->width; |
| 878 | outLayer->image->page.height=outLayer->height; |
cristy | 2cbb3b3 | 2012-04-01 19:11:10 +0000 | [diff] [blame] | 879 | return(MagickTrue); |
| 880 | } |
| 881 | } |
| 882 | outLayer->image=CloneImage(image,outLayer->width, outLayer->height,MagickTrue, |
| 883 | exception); |
| 884 | if (outLayer->image == (Image *) NULL) |
cristy | 8415f06 | 2012-04-03 00:12:53 +0000 | [diff] [blame] | 885 | return(MagickFalse); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 886 | /* clear the image based on the layer opacity */ |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 887 | outLayer->image->background_color.alpha= |
cristy | 547ca55 | 2012-03-31 16:15:43 +0000 | [diff] [blame] | 888 | ScaleCharToQuantum((unsigned char) outLayer->alpha); |
cristy | ea1a8aa | 2011-10-20 13:24:06 +0000 | [diff] [blame] | 889 | (void) SetImageBackgroundColor(outLayer->image,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 890 | |
cristy | 8415f06 | 2012-04-03 00:12:53 +0000 | [diff] [blame] | 891 | outLayer->image->page.x=outLayer->offset_x; |
| 892 | outLayer->image->page.y=outLayer->offset_y; |
| 893 | outLayer->image->page.width=outLayer->width; |
| 894 | outLayer->image->page.height=outLayer->height; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 895 | /* set the compositing mode */ |
| 896 | outLayer->image->compose = GIMPBlendModeToCompositeOperator( outLayer->mode ); |
| 897 | if ( outLayer->visible == MagickFalse ) |
| 898 | { |
| 899 | /* BOGUS: should really be separate member var! */ |
| 900 | outLayer->image->compose = NoCompositeOp; |
| 901 | } |
| 902 | |
| 903 | /* read the hierarchy and layer mask offsets */ |
| 904 | hierarchy_offset = ReadBlobMSBLong(image); |
| 905 | layer_mask_offset = ReadBlobMSBLong(image); |
| 906 | |
| 907 | /* read in the hierarchy */ |
| 908 | offset=SeekBlob(image, (MagickOffsetType) hierarchy_offset, SEEK_SET); |
| 909 | if (offset < 0) |
cristy | c82a27b | 2011-10-21 01:07:16 +0000 | [diff] [blame] | 910 | (void) ThrowMagickException(exception,GetMagickModule(), |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 911 | CorruptImageError,"InvalidImageHeader","`%s'",image->filename); |
cristy | 2cbb3b3 | 2012-04-01 19:11:10 +0000 | [diff] [blame] | 912 | if (load_hierarchy (image, inDocInfo, outLayer, exception) == 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 913 | return(MagickFalse); |
| 914 | |
| 915 | /* read in the layer mask */ |
| 916 | if (layer_mask_offset != 0) |
| 917 | { |
| 918 | offset=SeekBlob(image, (MagickOffsetType) layer_mask_offset, SEEK_SET); |
| 919 | |
| 920 | #if 0 /* BOGUS: support layer masks! */ |
| 921 | layer_mask = xcf_load_layer_mask (info, gimage); |
| 922 | if (layer_mask == 0) |
| 923 | goto error; |
| 924 | |
| 925 | /* set the offsets of the layer_mask */ |
| 926 | GIMP_DRAWABLE (layer_mask)->offset_x = GIMP_DRAWABLE (layer)->offset_x; |
| 927 | GIMP_DRAWABLE (layer_mask)->offset_y = GIMP_DRAWABLE (layer)->offset_y; |
| 928 | |
| 929 | gimp_layer_add_mask (layer, layer_mask, MagickFalse); |
| 930 | |
| 931 | layer->mask->apply_mask = apply_mask; |
| 932 | layer->mask->edit_mask = edit_mask; |
| 933 | layer->mask->show_mask = show_mask; |
| 934 | #endif |
| 935 | } |
| 936 | |
| 937 | /* attach the floating selection... */ |
| 938 | #if 0 /* BOGUS: we may need to read this, even if we don't support it! */ |
| 939 | if (add_floating_sel) |
| 940 | { |
| 941 | GimpLayer *floating_sel; |
| 942 | |
| 943 | floating_sel = info->floating_sel; |
| 944 | floating_sel_attach (floating_sel, GIMP_DRAWABLE (layer)); |
| 945 | } |
| 946 | #endif |
| 947 | |
| 948 | return MagickTrue; |
| 949 | } |
cristy | 8f0fbc0 | 2012-03-31 16:31:42 +0000 | [diff] [blame] | 950 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 951 | /* |
| 952 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 953 | % % |
| 954 | % % |
| 955 | % % |
| 956 | % R e a d X C F I m a g e % |
| 957 | % % |
| 958 | % % |
| 959 | % % |
| 960 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 961 | % |
| 962 | % ReadXCFImage() reads a GIMP (GNU Image Manipulation Program) image |
| 963 | % file and returns it. It allocates the memory necessary for the new Image |
| 964 | % structure and returns a pointer to the new image. |
| 965 | % |
| 966 | % The format of the ReadXCFImage method is: |
| 967 | % |
| 968 | % image=ReadXCFImage(image_info) |
| 969 | % |
| 970 | % A description of each parameter follows: |
| 971 | % |
| 972 | % o image_info: the image info. |
| 973 | % |
| 974 | % o exception: return any errors or warnings in this structure. |
| 975 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 976 | */ |
| 977 | static Image *ReadXCFImage(const ImageInfo *image_info,ExceptionInfo *exception) |
| 978 | { |
| 979 | char |
| 980 | magick[14]; |
| 981 | |
| 982 | Image |
| 983 | *image; |
| 984 | |
| 985 | int |
| 986 | foundPropEnd = 0; |
| 987 | |
| 988 | MagickBooleanType |
| 989 | status; |
| 990 | |
| 991 | MagickOffsetType |
| 992 | offset; |
| 993 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 994 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 995 | i; |
| 996 | |
| 997 | size_t |
cristy | c6da28e | 2011-04-28 01:41:35 +0000 | [diff] [blame] | 998 | image_type, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 999 | length; |
| 1000 | |
| 1001 | ssize_t |
| 1002 | count; |
| 1003 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1004 | XCFDocInfo |
| 1005 | doc_info; |
| 1006 | |
| 1007 | /* |
| 1008 | Open image file. |
| 1009 | */ |
| 1010 | assert(image_info != (const ImageInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 1011 | assert(image_info->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1012 | if (image_info->debug != MagickFalse) |
| 1013 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", |
| 1014 | image_info->filename); |
| 1015 | assert(exception != (ExceptionInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 1016 | assert(exception->signature == MagickCoreSignature); |
cristy | 9950d57 | 2011-10-01 18:22:35 +0000 | [diff] [blame] | 1017 | image=AcquireImage(image_info,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1018 | status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); |
| 1019 | if (status == MagickFalse) |
| 1020 | { |
| 1021 | image=DestroyImageList(image); |
| 1022 | return((Image *) NULL); |
| 1023 | } |
| 1024 | count=ReadBlob(image,14,(unsigned char *) magick); |
cristy | 771c884 | 2015-01-09 12:13:22 +0000 | [diff] [blame] | 1025 | if ((count != 14) || |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1026 | (LocaleNCompare((char *) magick,"gimp xcf",8) != 0)) |
| 1027 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| 1028 | (void) ResetMagickMemory(&doc_info,0,sizeof(XCFDocInfo)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1029 | doc_info.width=ReadBlobMSBLong(image); |
| 1030 | doc_info.height=ReadBlobMSBLong(image); |
| 1031 | if ((doc_info.width > 262144) || (doc_info.height > 262144)) |
| 1032 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| 1033 | doc_info.image_type=ReadBlobMSBLong(image); |
| 1034 | /* |
| 1035 | Initialize image attributes. |
| 1036 | */ |
| 1037 | image->columns=doc_info.width; |
| 1038 | image->rows=doc_info.height; |
| 1039 | image_type=doc_info.image_type; |
| 1040 | doc_info.file_size=GetBlobSize(image); |
| 1041 | image->compression=NoCompression; |
| 1042 | image->depth=8; |
| 1043 | if (image_type == GIMP_RGB) |
cristy | e2c4f18 | 2012-05-12 14:11:53 +0000 | [diff] [blame] | 1044 | SetImageColorspace(image,sRGBColorspace,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1045 | else |
| 1046 | if (image_type == GIMP_GRAY) |
cristy | e2c4f18 | 2012-05-12 14:11:53 +0000 | [diff] [blame] | 1047 | SetImageColorspace(image,GRAYColorspace,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1048 | else |
| 1049 | if (image_type == GIMP_INDEXED) |
| 1050 | ThrowReaderException(CoderError,"ColormapTypeNotSupported"); |
cristy | 547ca55 | 2012-03-31 16:15:43 +0000 | [diff] [blame] | 1051 | (void) SetImageBackgroundColor(image,exception); |
cristy | 59856fd | 2013-10-30 23:44:18 +0000 | [diff] [blame] | 1052 | (void) SetImageAlpha(image,OpaqueAlpha,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1053 | /* |
| 1054 | Read properties. |
| 1055 | */ |
| 1056 | while ((foundPropEnd == MagickFalse) && (EOFBlob(image) == MagickFalse)) |
| 1057 | { |
| 1058 | PropType prop_type = (PropType) ReadBlobMSBLong(image); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1059 | size_t prop_size = ReadBlobMSBLong(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1060 | |
| 1061 | switch (prop_type) |
| 1062 | { |
| 1063 | case PROP_END: |
| 1064 | foundPropEnd=1; |
| 1065 | break; |
| 1066 | case PROP_COLORMAP: |
| 1067 | { |
| 1068 | /* Cannot rely on prop_size here--the value is set incorrectly |
| 1069 | by some Gimp versions. |
| 1070 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1071 | size_t num_colours = ReadBlobMSBLong(image); |
cristy | d429702 | 2010-09-16 22:59:09 +0000 | [diff] [blame] | 1072 | if (DiscardBlobBytes(image,3*num_colours) == MagickFalse) |
cristy | c82a27b | 2011-10-21 01:07:16 +0000 | [diff] [blame] | 1073 | ThrowFileException(exception,CorruptImageError, |
cristy | d429702 | 2010-09-16 22:59:09 +0000 | [diff] [blame] | 1074 | "UnexpectedEndOfFile",image->filename); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1075 | /* |
| 1076 | if (info->file_version == 0) |
| 1077 | { |
| 1078 | gint i; |
| 1079 | |
| 1080 | g_message (_("XCF warning: version 0 of XCF file format\n" |
| 1081 | "did not save indexed colormaps correctly.\n" |
| 1082 | "Substituting grayscale map.")); |
| 1083 | info->cp += |
| 1084 | xcf_read_int32 (info->fp, (guint32*) &gimage->num_cols, 1); |
| 1085 | gimage->cmap = g_new (guchar, gimage->num_cols*3); |
| 1086 | xcf_seek_pos (info, info->cp + gimage->num_cols); |
| 1087 | for (i = 0; i<gimage->num_cols; i++) |
| 1088 | { |
| 1089 | gimage->cmap[i*3+0] = i; |
| 1090 | gimage->cmap[i*3+1] = i; |
| 1091 | gimage->cmap[i*3+2] = i; |
| 1092 | } |
| 1093 | } |
| 1094 | else |
| 1095 | { |
| 1096 | info->cp += |
| 1097 | xcf_read_int32 (info->fp, (guint32*) &gimage->num_cols, 1); |
| 1098 | gimage->cmap = g_new (guchar, gimage->num_cols*3); |
| 1099 | info->cp += |
| 1100 | xcf_read_int8 (info->fp, |
| 1101 | (guint8*) gimage->cmap, gimage->num_cols*3); |
| 1102 | } |
| 1103 | */ |
| 1104 | break; |
| 1105 | } |
| 1106 | case PROP_COMPRESSION: |
| 1107 | { |
| 1108 | doc_info.compression = ReadBlobByte(image); |
| 1109 | if ((doc_info.compression != COMPRESS_NONE) && |
| 1110 | (doc_info.compression != COMPRESS_RLE) && |
| 1111 | (doc_info.compression != COMPRESS_ZLIB) && |
| 1112 | (doc_info.compression != COMPRESS_FRACTAL)) |
| 1113 | ThrowReaderException(CorruptImageError,"UnrecognizedImageCompression"); |
| 1114 | } |
| 1115 | break; |
| 1116 | |
| 1117 | case PROP_GUIDES: |
| 1118 | { |
| 1119 | /* just skip it - we don't care about guides */ |
cristy | d429702 | 2010-09-16 22:59:09 +0000 | [diff] [blame] | 1120 | if (DiscardBlobBytes(image,prop_size) == MagickFalse) |
cristy | c82a27b | 2011-10-21 01:07:16 +0000 | [diff] [blame] | 1121 | ThrowFileException(exception,CorruptImageError, |
cristy | d429702 | 2010-09-16 22:59:09 +0000 | [diff] [blame] | 1122 | "UnexpectedEndOfFile",image->filename); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1123 | } |
| 1124 | break; |
| 1125 | |
| 1126 | case PROP_RESOLUTION: |
| 1127 | { |
| 1128 | /* float xres = (float) */ (void) ReadBlobMSBLong(image); |
| 1129 | /* float yres = (float) */ (void) ReadBlobMSBLong(image); |
| 1130 | |
| 1131 | /* |
| 1132 | if (xres < GIMP_MIN_RESOLUTION || xres > GIMP_MAX_RESOLUTION || |
| 1133 | yres < GIMP_MIN_RESOLUTION || yres > GIMP_MAX_RESOLUTION) |
| 1134 | { |
| 1135 | g_message ("Warning, resolution out of range in XCF file"); |
| 1136 | xres = gimage->gimp->config->default_xresolution; |
| 1137 | yres = gimage->gimp->config->default_yresolution; |
| 1138 | } |
| 1139 | */ |
| 1140 | |
| 1141 | |
| 1142 | /* BOGUS: we don't write these yet because we aren't |
| 1143 | reading them properly yet :( |
cristy | 2a11bef | 2011-10-28 18:33:11 +0000 | [diff] [blame] | 1144 | image->resolution.x = xres; |
| 1145 | image->resolution.y = yres; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1146 | */ |
| 1147 | } |
| 1148 | break; |
| 1149 | |
| 1150 | case PROP_TATTOO: |
| 1151 | { |
| 1152 | /* we need to read it, even if we ignore it */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1153 | /*size_t tattoo_state = */ (void) ReadBlobMSBLong(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1154 | } |
| 1155 | break; |
| 1156 | |
| 1157 | case PROP_PARASITES: |
| 1158 | { |
| 1159 | /* BOGUS: we may need these for IPTC stuff */ |
cristy | d429702 | 2010-09-16 22:59:09 +0000 | [diff] [blame] | 1160 | if (DiscardBlobBytes(image,prop_size) == MagickFalse) |
cristy | c82a27b | 2011-10-21 01:07:16 +0000 | [diff] [blame] | 1161 | ThrowFileException(exception,CorruptImageError, |
cristy | d429702 | 2010-09-16 22:59:09 +0000 | [diff] [blame] | 1162 | "UnexpectedEndOfFile",image->filename); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1163 | /* |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1164 | gssize_t base = info->cp; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1165 | GimpParasite *p; |
| 1166 | |
| 1167 | while (info->cp - base < prop_size) |
| 1168 | { |
| 1169 | p = xcf_load_parasite (info); |
| 1170 | gimp_image_parasite_attach (gimage, p); |
| 1171 | gimp_parasite_free (p); |
| 1172 | } |
| 1173 | if (info->cp - base != prop_size) |
| 1174 | g_message ("Error detected while loading an image's parasites"); |
| 1175 | */ |
| 1176 | } |
| 1177 | break; |
| 1178 | |
| 1179 | case PROP_UNIT: |
| 1180 | { |
| 1181 | /* BOGUS: ignore for now... */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1182 | /*size_t unit = */ (void) ReadBlobMSBLong(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1183 | } |
| 1184 | break; |
| 1185 | |
| 1186 | case PROP_PATHS: |
| 1187 | { |
| 1188 | /* BOGUS: just skip it for now */ |
cristy | d429702 | 2010-09-16 22:59:09 +0000 | [diff] [blame] | 1189 | if (DiscardBlobBytes(image,prop_size) == MagickFalse) |
cristy | c82a27b | 2011-10-21 01:07:16 +0000 | [diff] [blame] | 1190 | ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile", |
| 1191 | image->filename); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1192 | |
| 1193 | /* |
| 1194 | PathList *paths = xcf_load_bzpaths (gimage, info); |
| 1195 | gimp_image_set_paths (gimage, paths); |
| 1196 | */ |
| 1197 | } |
| 1198 | break; |
| 1199 | |
| 1200 | case PROP_USER_UNIT: |
| 1201 | { |
| 1202 | char unit_string[1000]; |
| 1203 | /*BOGUS: ignored for now */ |
| 1204 | /*float factor = (float) */ (void) ReadBlobMSBLong(image); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1205 | /* size_t digits = */ (void) ReadBlobMSBLong(image); |
cristy | 547ca55 | 2012-03-31 16:15:43 +0000 | [diff] [blame] | 1206 | for (i=0; i<5; i++) |
| 1207 | (void) ReadBlobStringWithLongSize(image, unit_string, |
cristy | c82a27b | 2011-10-21 01:07:16 +0000 | [diff] [blame] | 1208 | sizeof(unit_string),exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1209 | } |
| 1210 | break; |
| 1211 | |
| 1212 | default: |
| 1213 | { |
| 1214 | int buf[16]; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1215 | ssize_t amount; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1216 | |
| 1217 | /* read over it... */ |
| 1218 | while ((prop_size > 0) && (EOFBlob(image) == MagickFalse)) |
| 1219 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1220 | amount=(ssize_t) MagickMin(16, prop_size); |
| 1221 | amount=(ssize_t) ReadBlob(image,(size_t) amount,(unsigned char *) &buf); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1222 | if (!amount) |
| 1223 | ThrowReaderException(CorruptImageError,"CorruptImage"); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1224 | prop_size -= (size_t) MagickMin(16,(size_t) amount); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1225 | } |
| 1226 | } |
| 1227 | break; |
| 1228 | } |
| 1229 | } |
| 1230 | if (foundPropEnd == MagickFalse) |
| 1231 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| 1232 | |
| 1233 | if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0)) |
| 1234 | { |
| 1235 | ; /* do nothing, were just pinging! */ |
| 1236 | } |
| 1237 | else |
| 1238 | { |
| 1239 | int |
| 1240 | current_layer = 0, |
cristy | 547ca55 | 2012-03-31 16:15:43 +0000 | [diff] [blame] | 1241 | foundAllLayers = MagickFalse, |
| 1242 | number_layers = 0; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1243 | |
| 1244 | MagickOffsetType |
cristy | 547ca55 | 2012-03-31 16:15:43 +0000 | [diff] [blame] | 1245 | oldPos=TellBlob(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1246 | |
| 1247 | XCFLayerInfo |
| 1248 | *layer_info; |
| 1249 | |
cristy | acabb84 | 2014-12-14 23:36:33 +0000 | [diff] [blame] | 1250 | status=SetImageExtent(image,image->columns,image->rows,exception); |
| 1251 | if (status == MagickFalse) |
| 1252 | return(DestroyImageList(image)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1253 | /* |
| 1254 | the read pointer |
| 1255 | */ |
| 1256 | do |
| 1257 | { |
cristy | 6cff05d | 2010-09-02 11:22:46 +0000 | [diff] [blame] | 1258 | ssize_t offset = (int) ReadBlobMSBLong(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1259 | if (offset == 0) |
| 1260 | foundAllLayers=MagickTrue; |
| 1261 | else |
| 1262 | number_layers++; |
| 1263 | if (EOFBlob(image) != MagickFalse) |
| 1264 | { |
| 1265 | ThrowFileException(exception,CorruptImageError, |
| 1266 | "UnexpectedEndOfFile",image->filename); |
| 1267 | break; |
| 1268 | } |
| 1269 | } while (foundAllLayers == MagickFalse); |
cristy | 2cbb3b3 | 2012-04-01 19:11:10 +0000 | [diff] [blame] | 1270 | doc_info.number_layers=number_layers; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1271 | offset=SeekBlob(image,oldPos,SEEK_SET); /* restore the position! */ |
| 1272 | if (offset < 0) |
| 1273 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| 1274 | /* allocate our array of layer info blocks */ |
| 1275 | length=(size_t) number_layers; |
| 1276 | layer_info=(XCFLayerInfo *) AcquireQuantumMemory(length, |
| 1277 | sizeof(*layer_info)); |
| 1278 | if (layer_info == (XCFLayerInfo *) NULL) |
| 1279 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
| 1280 | (void) ResetMagickMemory(layer_info,0,number_layers*sizeof(XCFLayerInfo)); |
| 1281 | for ( ; ; ) |
| 1282 | { |
| 1283 | MagickBooleanType |
| 1284 | layer_ok; |
| 1285 | |
| 1286 | MagickOffsetType |
| 1287 | offset, |
| 1288 | saved_pos; |
| 1289 | |
| 1290 | /* read in the offset of the next layer */ |
| 1291 | offset=(MagickOffsetType) ReadBlobMSBLong(image); |
| 1292 | /* if the offset is 0 then we are at the end |
| 1293 | * of the layer list. |
| 1294 | */ |
| 1295 | if (offset == 0) |
| 1296 | break; |
| 1297 | /* save the current position as it is where the |
| 1298 | * next layer offset is stored. |
| 1299 | */ |
| 1300 | saved_pos=TellBlob(image); |
cristy | 547ca55 | 2012-03-31 16:15:43 +0000 | [diff] [blame] | 1301 | /* seek to the layer offset */ |
| 1302 | offset=SeekBlob(image,offset,SEEK_SET); |
| 1303 | /* read in the layer */ |
cristy | 2cbb3b3 | 2012-04-01 19:11:10 +0000 | [diff] [blame] | 1304 | layer_ok=ReadOneLayer(image_info,image,&doc_info, |
| 1305 | &layer_info[current_layer],current_layer,exception); |
cristy | 547ca55 | 2012-03-31 16:15:43 +0000 | [diff] [blame] | 1306 | if (layer_ok == MagickFalse) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1307 | { |
cristy | 547ca55 | 2012-03-31 16:15:43 +0000 | [diff] [blame] | 1308 | int j; |
| 1309 | |
| 1310 | for (j=0; j < current_layer; j++) |
| 1311 | layer_info[j].image=DestroyImage(layer_info[j].image); |
cristy | 2cbb3b3 | 2012-04-01 19:11:10 +0000 | [diff] [blame] | 1312 | layer_info=(XCFLayerInfo *) RelinquishMagickMemory(layer_info); |
| 1313 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
| 1314 | } |
cristy | 547ca55 | 2012-03-31 16:15:43 +0000 | [diff] [blame] | 1315 | /* restore the saved position so we'll be ready to |
| 1316 | * read the next offset. |
| 1317 | */ |
| 1318 | offset=SeekBlob(image, saved_pos, SEEK_SET); |
| 1319 | current_layer++; |
| 1320 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1321 | if (number_layers == 1) |
| 1322 | { |
| 1323 | /* |
| 1324 | Composite the layer data onto the main image, dispose the layer. |
| 1325 | */ |
cristy | 59856fd | 2013-10-30 23:44:18 +0000 | [diff] [blame] | 1326 | (void) CompositeImage(image,layer_info[0].image,CopyCompositeOp, |
cristy | 3917240 | 2012-03-30 13:04:39 +0000 | [diff] [blame] | 1327 | MagickTrue,layer_info[0].offset_x,layer_info[0].offset_y,exception); |
cristy | 547ca55 | 2012-03-31 16:15:43 +0000 | [diff] [blame] | 1328 | layer_info[0].image =DestroyImage( layer_info[0].image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1329 | } |
| 1330 | else |
| 1331 | { |
| 1332 | #if 0 |
| 1333 | { |
| 1334 | /* NOTE: XCF layers are REVERSED from composite order! */ |
| 1335 | signed int j; |
| 1336 | for (j=number_layers-1; j>=0; j--) { |
| 1337 | /* BOGUS: need to consider layer blending modes!! */ |
| 1338 | |
| 1339 | if ( layer_info[j].visible ) { /* only visible ones, please! */ |
cristy | 547ca55 | 2012-03-31 16:15:43 +0000 | [diff] [blame] | 1340 | CompositeImage(image, OverCompositeOp, layer_info[j].image, |
| 1341 | layer_info[j].offset_x, layer_info[j].offset_y ); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1342 | layer_info[j].image =DestroyImage( layer_info[j].image ); |
| 1343 | |
cristy | 8f0fbc0 | 2012-03-31 16:31:42 +0000 | [diff] [blame] | 1344 | /* If we do this, we'll get REAL gray images! */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1345 | if ( image_type == GIMP_GRAY ) { |
| 1346 | QuantizeInfo qi; |
| 1347 | GetQuantizeInfo(&qi); |
| 1348 | qi.colorspace = GRAYColorspace; |
| 1349 | QuantizeImage( &qi, layer_info[j].image ); |
| 1350 | } |
| 1351 | } |
| 1352 | } |
| 1353 | } |
| 1354 | #else |
| 1355 | { |
| 1356 | /* NOTE: XCF layers are REVERSED from composite order! */ |
cristy | 8415f06 | 2012-04-03 00:12:53 +0000 | [diff] [blame] | 1357 | ssize_t j; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1358 | |
| 1359 | /* first we copy the last layer on top of the main image */ |
cristy | feb3e96 | 2012-03-29 17:25:55 +0000 | [diff] [blame] | 1360 | (void) CompositeImage(image,layer_info[number_layers-1].image, |
cristy | 3917240 | 2012-03-30 13:04:39 +0000 | [diff] [blame] | 1361 | CopyCompositeOp,MagickTrue,layer_info[number_layers-1].offset_x, |
cristy | e941a75 | 2011-10-15 01:52:48 +0000 | [diff] [blame] | 1362 | layer_info[number_layers-1].offset_y,exception); |
cristy | 547ca55 | 2012-03-31 16:15:43 +0000 | [diff] [blame] | 1363 | layer_info[number_layers-1].image=DestroyImage( |
| 1364 | layer_info[number_layers-1].image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1365 | |
| 1366 | /* now reverse the order of the layers as they are put |
| 1367 | into subimages |
| 1368 | */ |
cristy | 8415f06 | 2012-04-03 00:12:53 +0000 | [diff] [blame] | 1369 | for (j=(ssize_t) number_layers-2; j >= 0; j--) |
| 1370 | AppendImageToList(&image,layer_info[j].image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1371 | } |
| 1372 | #endif |
| 1373 | } |
| 1374 | |
| 1375 | layer_info=(XCFLayerInfo *) RelinquishMagickMemory(layer_info); |
| 1376 | |
| 1377 | #if 0 /* BOGUS: do we need the channels?? */ |
| 1378 | while (MagickTrue) |
| 1379 | { |
| 1380 | /* read in the offset of the next channel */ |
| 1381 | info->cp += xcf_read_int32 (info->fp, &offset, 1); |
| 1382 | |
| 1383 | /* if the offset is 0 then we are at the end |
| 1384 | * of the channel list. |
| 1385 | */ |
| 1386 | if (offset == 0) |
| 1387 | break; |
| 1388 | |
| 1389 | /* save the current position as it is where the |
| 1390 | * next channel offset is stored. |
| 1391 | */ |
| 1392 | saved_pos = info->cp; |
| 1393 | |
| 1394 | /* seek to the channel offset */ |
| 1395 | xcf_seek_pos (info, offset); |
| 1396 | |
| 1397 | /* read in the layer */ |
| 1398 | channel = xcf_load_channel (info, gimage); |
| 1399 | if (channel == 0) |
| 1400 | goto error; |
| 1401 | |
| 1402 | num_successful_elements++; |
| 1403 | |
| 1404 | /* add the channel to the image if its not the selection */ |
| 1405 | if (channel != gimage->selection_mask) |
| 1406 | gimp_image_add_channel (gimage, channel, -1); |
| 1407 | |
| 1408 | /* restore the saved position so we'll be ready to |
| 1409 | * read the next offset. |
| 1410 | */ |
| 1411 | xcf_seek_pos (info, saved_pos); |
| 1412 | } |
| 1413 | #endif |
| 1414 | } |
| 1415 | |
| 1416 | (void) CloseBlob(image); |
| 1417 | if (image_type == GIMP_GRAY) |
| 1418 | image->type=GrayscaleType; |
| 1419 | return(GetFirstImageInList(image)); |
| 1420 | } |
| 1421 | |
| 1422 | /* |
| 1423 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1424 | % % |
| 1425 | % % |
| 1426 | % % |
| 1427 | % R e g i s t e r X C F I m a g e % |
| 1428 | % % |
| 1429 | % % |
| 1430 | % % |
| 1431 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1432 | % |
| 1433 | % RegisterXCFImage() adds attributes for the XCF image format to |
| 1434 | % the list of supported formats. The attributes include the image format |
| 1435 | % tag, a method to read and/or write the format, whether the format |
| 1436 | % supports the saving of more than one frame to the same file or blob, |
| 1437 | % whether the format supports native in-memory I/O, and a brief |
| 1438 | % description of the format. |
| 1439 | % |
| 1440 | % The format of the RegisterXCFImage method is: |
| 1441 | % |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1442 | % size_t RegisterXCFImage(void) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1443 | % |
| 1444 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1445 | ModuleExport size_t RegisterXCFImage(void) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1446 | { |
| 1447 | MagickInfo |
| 1448 | *entry; |
| 1449 | |
dirk | 06b627a | 2015-04-06 18:59:17 +0000 | [diff] [blame] | 1450 | entry=AcquireMagickInfo("XCF","XCF","GIMP image"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1451 | entry->decoder=(DecodeImageHandler *) ReadXCFImage; |
| 1452 | entry->magick=(IsImageFormatHandler *) IsXCF; |
dirk | 08e9a11 | 2015-02-22 01:51:41 +0000 | [diff] [blame] | 1453 | entry->flags|=CoderSeekableStreamFlag; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1454 | (void) RegisterMagickInfo(entry); |
| 1455 | return(MagickImageCoderSignature); |
| 1456 | } |
| 1457 | |
| 1458 | /* |
| 1459 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1460 | % % |
| 1461 | % % |
| 1462 | % % |
| 1463 | % U n r e g i s t e r X C F I m a g e % |
| 1464 | % % |
| 1465 | % % |
| 1466 | % % |
| 1467 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1468 | % |
| 1469 | % UnregisterXCFImage() removes format registrations made by the |
| 1470 | % XCF module from the list of supported formats. |
| 1471 | % |
| 1472 | % The format of the UnregisterXCFImage method is: |
| 1473 | % |
| 1474 | % UnregisterXCFImage(void) |
| 1475 | % |
| 1476 | */ |
| 1477 | ModuleExport void UnregisterXCFImage(void) |
| 1478 | { |
| 1479 | (void) UnregisterMagickInfo("XCF"); |
| 1480 | } |