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 % |
| 16 | % John Cristy % |
| 17 | % Glenn Randers-Pehrson % |
| 18 | % December 2001 % |
| 19 | % % |
| 20 | % % |
cristy | 16af1cb | 2009-12-11 21:38:29 +0000 | [diff] [blame] | 21 | % Copyright 1999-2010 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 | */ |
| 43 | #include "magick/studio.h" |
| 44 | #include "magick/blob.h" |
| 45 | #include "magick/blob-private.h" |
| 46 | #include "magick/cache.h" |
cristy | 316d517 | 2009-09-17 19:31:25 +0000 | [diff] [blame] | 47 | #include "magick/colormap-private.h" |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 48 | #include "magick/color-private.h" |
cristy | e7e4055 | 2010-04-24 21:34:22 +0000 | [diff] [blame^] | 49 | #include "magick/colormap.h" |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 50 | #include "magick/colorspace.h" |
| 51 | #include "magick/exception.h" |
| 52 | #include "magick/exception-private.h" |
| 53 | #include "magick/image.h" |
| 54 | #include "magick/image-private.h" |
| 55 | #include "magick/list.h" |
| 56 | #include "magick/log.h" |
| 57 | #include "magick/magick.h" |
| 58 | #include "magick/memory_.h" |
| 59 | #include "magick/monitor.h" |
| 60 | #include "magick/monitor-private.h" |
| 61 | #include "magick/profile.h" |
| 62 | #include "magick/quantum-private.h" |
| 63 | #include "magick/static.h" |
| 64 | #include "magick/string_.h" |
| 65 | #include "magick/module.h" |
| 66 | #include "magick/transform.h" |
| 67 | |
| 68 | /* |
| 69 | Macro definitions (from Windows wingdi.h). |
| 70 | */ |
| 71 | #undef BI_JPEG |
| 72 | #define BI_JPEG 4 |
| 73 | #undef BI_PNG |
| 74 | #define BI_PNG 5 |
cristy | 0157aea | 2010-04-24 21:12:18 +0000 | [diff] [blame] | 75 | #if !defined(MAGICKCORE_WINDOWS_SUPPORT) || defined(__MINGW32__) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 76 | #define BI_RGB 0 |
| 77 | #define BI_RLE8 1 |
| 78 | #define BI_RLE4 2 |
| 79 | #define BI_BITFIELDS 3 |
| 80 | |
| 81 | #define LCS_CALIBRATED_RBG 0 |
| 82 | #define LCS_sRGB 1 |
| 83 | #define LCS_WINDOWS_COLOR_SPACE 2 |
| 84 | #define PROFILE_LINKED 3 |
| 85 | #define PROFILE_EMBEDDED 4 |
| 86 | |
| 87 | #define LCS_GM_BUSINESS 1 /* Saturation */ |
| 88 | #define LCS_GM_GRAPHICS 2 /* Relative */ |
| 89 | #define LCS_GM_IMAGES 4 /* Perceptual */ |
| 90 | #define LCS_GM_ABS_COLORIMETRIC 8 /* Absolute */ |
| 91 | #endif |
| 92 | |
| 93 | /* |
| 94 | Typedef declarations. |
| 95 | */ |
| 96 | typedef struct _BMPInfo |
| 97 | { |
| 98 | unsigned int |
| 99 | file_size, |
| 100 | ba_offset, |
| 101 | offset_bits, |
| 102 | size; |
| 103 | |
| 104 | long |
| 105 | width, |
| 106 | height; |
| 107 | |
| 108 | unsigned short |
| 109 | planes, |
| 110 | bits_per_pixel; |
| 111 | |
| 112 | unsigned int |
| 113 | compression, |
| 114 | image_size, |
| 115 | x_pixels, |
| 116 | y_pixels, |
| 117 | number_colors, |
| 118 | red_mask, |
| 119 | green_mask, |
| 120 | blue_mask, |
| 121 | alpha_mask, |
| 122 | colors_important; |
| 123 | |
| 124 | int |
| 125 | colorspace; |
| 126 | |
| 127 | PrimaryInfo |
| 128 | red_primary, |
| 129 | green_primary, |
| 130 | blue_primary, |
| 131 | gamma_scale; |
| 132 | } BMPInfo; |
| 133 | |
| 134 | /* |
| 135 | Forward declarations. |
| 136 | */ |
| 137 | static MagickBooleanType |
| 138 | WriteBMPImage(const ImageInfo *,Image *); |
| 139 | |
| 140 | /* |
| 141 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 142 | % % |
| 143 | % % |
| 144 | % % |
| 145 | % D e c o d e I m a g e % |
| 146 | % % |
| 147 | % % |
| 148 | % % |
| 149 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 150 | % |
| 151 | % DecodeImage unpacks the packed image pixels into runlength-encoded |
| 152 | % pixel packets. |
| 153 | % |
| 154 | % The format of the DecodeImage method is: |
| 155 | % |
| 156 | % MagickBooleanType DecodeImage(Image *image, |
| 157 | % const unsigned long compression,unsigned char *pixels) |
| 158 | % |
| 159 | % A description of each parameter follows: |
| 160 | % |
| 161 | % o image: the address of a structure of type Image. |
| 162 | % |
| 163 | % o compression: Zero means uncompressed. A value of 1 means the |
| 164 | % compressed pixels are runlength encoded for a 256-color bitmap. |
| 165 | % A value of 2 means a 16-color bitmap. A value of 3 means bitfields |
| 166 | % encoding. |
| 167 | % |
| 168 | % o pixels: The address of a byte (8 bits) array of pixel data created by |
| 169 | % the decoding process. |
| 170 | % |
| 171 | */ |
| 172 | |
| 173 | static inline long MagickAbsoluteValue(const long x) |
| 174 | { |
| 175 | if (x < 0) |
| 176 | return(-x); |
| 177 | return(x); |
| 178 | } |
| 179 | |
| 180 | static inline size_t MagickMax(const size_t x,const size_t y) |
| 181 | { |
| 182 | if (x > y) |
| 183 | return(x); |
| 184 | return(y); |
| 185 | } |
| 186 | |
| 187 | static inline long MagickMin(const long x,const long y) |
| 188 | { |
| 189 | if (x < y) |
| 190 | return(x); |
| 191 | return(y); |
| 192 | } |
| 193 | |
| 194 | static MagickBooleanType DecodeImage(Image *image, |
| 195 | const unsigned long compression,unsigned char *pixels) |
| 196 | { |
| 197 | int |
| 198 | count; |
| 199 | |
| 200 | long |
| 201 | y; |
| 202 | |
| 203 | register long |
| 204 | i, |
| 205 | x; |
| 206 | |
| 207 | register unsigned char |
| 208 | *p, |
| 209 | *q; |
| 210 | |
| 211 | unsigned char |
| 212 | byte; |
| 213 | |
| 214 | assert(image != (Image *) NULL); |
| 215 | assert(image->signature == MagickSignature); |
| 216 | if (image->debug != MagickFalse) |
| 217 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 218 | assert(pixels != (unsigned char *) NULL); |
| 219 | (void) ResetMagickMemory(pixels,0,(size_t) image->columns*image->rows* |
| 220 | sizeof(*pixels)); |
| 221 | byte=0; |
| 222 | x=0; |
| 223 | p=pixels; |
| 224 | q=pixels+(size_t) image->columns*image->rows; |
| 225 | for (y=0; y < (long) image->rows; ) |
| 226 | { |
| 227 | if ((p < pixels) || (p >= q)) |
| 228 | break; |
| 229 | count=ReadBlobByte(image); |
| 230 | if (count == EOF) |
| 231 | break; |
| 232 | if (count != 0) |
| 233 | { |
| 234 | /* |
| 235 | Encoded mode. |
| 236 | */ |
| 237 | count=MagickMin(count,(int) (q-p)); |
| 238 | byte=(unsigned char) ReadBlobByte(image); |
| 239 | if (compression == BI_RLE8) |
| 240 | { |
| 241 | for (i=0; i < count; i++) |
| 242 | *p++=(unsigned char) byte; |
| 243 | } |
| 244 | else |
| 245 | { |
| 246 | for (i=0; i < count; i++) |
| 247 | *p++=(unsigned char) |
| 248 | ((i & 0x01) != 0 ? (byte & 0x0f) : ((byte >> 4) & 0x0f)); |
| 249 | } |
| 250 | x+=count; |
| 251 | } |
| 252 | else |
| 253 | { |
| 254 | /* |
| 255 | Escape mode. |
| 256 | */ |
| 257 | count=ReadBlobByte(image); |
| 258 | if (count == 0x01) |
| 259 | return(MagickTrue); |
| 260 | switch (count) |
| 261 | { |
| 262 | case 0x00: |
| 263 | { |
| 264 | /* |
| 265 | End of line. |
| 266 | */ |
| 267 | x=0; |
| 268 | y++; |
| 269 | p=pixels+y*image->columns; |
| 270 | break; |
| 271 | } |
| 272 | case 0x02: |
| 273 | { |
| 274 | /* |
| 275 | Delta mode. |
| 276 | */ |
| 277 | x+=ReadBlobByte(image); |
| 278 | y+=ReadBlobByte(image); |
| 279 | p=pixels+y*image->columns+x; |
| 280 | break; |
| 281 | } |
| 282 | default: |
| 283 | { |
| 284 | /* |
| 285 | Absolute mode. |
| 286 | */ |
| 287 | count=MagickMin(count,(int) (q-p)); |
| 288 | if (compression == BI_RLE8) |
| 289 | for (i=0; i < count; i++) |
| 290 | *p++=(unsigned char) ReadBlobByte(image); |
| 291 | else |
| 292 | for (i=0; i < count; i++) |
| 293 | { |
| 294 | if ((i & 0x01) == 0) |
| 295 | byte=(unsigned char) ReadBlobByte(image); |
| 296 | *p++=(unsigned char) |
| 297 | ((i & 0x01) != 0 ? (byte & 0x0f) : ((byte >> 4) & 0x0f)); |
| 298 | } |
| 299 | x+=count; |
| 300 | /* |
| 301 | Read pad byte. |
| 302 | */ |
| 303 | if (compression == BI_RLE8) |
| 304 | { |
| 305 | if ((count & 0x01) != 0) |
| 306 | (void) ReadBlobByte(image); |
| 307 | } |
| 308 | else |
| 309 | if (((count & 0x03) == 1) || ((count & 0x03) == 2)) |
| 310 | (void) ReadBlobByte(image); |
| 311 | break; |
| 312 | } |
| 313 | } |
| 314 | } |
| 315 | if (SetImageProgress(image,LoadImageTag,y,image->rows) == MagickFalse) |
| 316 | break; |
| 317 | } |
| 318 | (void) ReadBlobByte(image); /* end of line */ |
| 319 | (void) ReadBlobByte(image); |
| 320 | return(MagickTrue); |
| 321 | } |
| 322 | |
| 323 | /* |
| 324 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 325 | % % |
| 326 | % % |
| 327 | % % |
| 328 | % E n c o d e I m a g e % |
| 329 | % % |
| 330 | % % |
| 331 | % % |
| 332 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 333 | % |
| 334 | % EncodeImage compresses pixels using a runlength encoded format. |
| 335 | % |
| 336 | % The format of the EncodeImage method is: |
| 337 | % |
| 338 | % static MagickBooleanType EncodeImage(Image *image, |
| 339 | % const unsigned long bytes_per_line,const unsigned char *pixels, |
| 340 | % unsigned char *compressed_pixels) |
| 341 | % |
| 342 | % A description of each parameter follows: |
| 343 | % |
| 344 | % o image: The image. |
| 345 | % |
| 346 | % o bytes_per_line: the number of bytes in a scanline of compressed pixels |
| 347 | % |
| 348 | % o pixels: The address of a byte (8 bits) array of pixel data created by |
| 349 | % the compression process. |
| 350 | % |
| 351 | % o compressed_pixels: The address of a byte (8 bits) array of compressed |
| 352 | % pixel data. |
| 353 | % |
| 354 | */ |
| 355 | static size_t EncodeImage(Image *image,const unsigned long bytes_per_line, |
| 356 | const unsigned char *pixels,unsigned char *compressed_pixels) |
| 357 | { |
| 358 | long |
| 359 | y; |
| 360 | |
| 361 | MagickBooleanType |
| 362 | status; |
| 363 | |
| 364 | register const unsigned char |
| 365 | *p; |
| 366 | |
| 367 | register long |
| 368 | i, |
| 369 | x; |
| 370 | |
| 371 | register unsigned char |
| 372 | *q; |
| 373 | |
| 374 | /* |
| 375 | Runlength encode pixels. |
| 376 | */ |
| 377 | assert(image != (Image *) NULL); |
| 378 | assert(image->signature == MagickSignature); |
| 379 | if (image->debug != MagickFalse) |
| 380 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 381 | assert(pixels != (const unsigned char *) NULL); |
| 382 | assert(compressed_pixels != (unsigned char *) NULL); |
| 383 | p=pixels; |
| 384 | q=compressed_pixels; |
| 385 | i=0; |
| 386 | for (y=0; y < (long) image->rows; y++) |
| 387 | { |
| 388 | for (x=0; x < (long) bytes_per_line; x+=i) |
| 389 | { |
| 390 | /* |
| 391 | Determine runlength. |
| 392 | */ |
| 393 | for (i=1; ((x+i) < (long) bytes_per_line); i++) |
| 394 | if ((i == 255) || (*(p+i) != *p)) |
| 395 | break; |
| 396 | *q++=(unsigned char) i; |
| 397 | *q++=(*p); |
| 398 | p+=i; |
| 399 | } |
| 400 | /* |
| 401 | End of line. |
| 402 | */ |
| 403 | *q++=(unsigned char) 0x00; |
| 404 | *q++=(unsigned char) 0x00; |
| 405 | status=SetImageProgress(image,SaveImageTag,y,image->rows); |
| 406 | if (status == MagickFalse) |
| 407 | break; |
| 408 | } |
| 409 | /* |
| 410 | End of bitmap. |
| 411 | */ |
| 412 | *q++=(unsigned char) 0x00; |
| 413 | *q++=(unsigned char) 0x01; |
| 414 | return((size_t) (q-compressed_pixels)); |
| 415 | } |
| 416 | |
| 417 | /* |
| 418 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 419 | % % |
| 420 | % % |
| 421 | % % |
| 422 | % I s B M P % |
| 423 | % % |
| 424 | % % |
| 425 | % % |
| 426 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 427 | % |
| 428 | % IsBMP() returns MagickTrue if the image format type, identified by the |
| 429 | % magick string, is BMP. |
| 430 | % |
| 431 | % The format of the IsBMP method is: |
| 432 | % |
| 433 | % MagickBooleanType IsBMP(const unsigned char *magick,const size_t length) |
| 434 | % |
| 435 | % A description of each parameter follows: |
| 436 | % |
| 437 | % o magick: compare image format pattern against these bytes. |
| 438 | % |
| 439 | % o length: Specifies the length of the magick string. |
| 440 | % |
| 441 | */ |
| 442 | static MagickBooleanType IsBMP(const unsigned char *magick,const size_t length) |
| 443 | { |
| 444 | if (length < 2) |
| 445 | return(MagickFalse); |
| 446 | if ((LocaleNCompare((char *) magick,"BA",2) == 0) || |
| 447 | (LocaleNCompare((char *) magick,"BM",2) == 0) || |
| 448 | (LocaleNCompare((char *) magick,"IC",2) == 0) || |
| 449 | (LocaleNCompare((char *) magick,"PI",2) == 0) || |
| 450 | (LocaleNCompare((char *) magick,"CI",2) == 0) || |
| 451 | (LocaleNCompare((char *) magick,"CP",2) == 0)) |
| 452 | return(MagickTrue); |
| 453 | return(MagickFalse); |
| 454 | } |
| 455 | |
| 456 | /* |
| 457 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 458 | % % |
| 459 | % % |
| 460 | % % |
| 461 | % R e a d B M P I m a g e % |
| 462 | % % |
| 463 | % % |
| 464 | % % |
| 465 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 466 | % |
| 467 | % ReadBMPImage() reads a Microsoft Windows bitmap image file, Version |
| 468 | % 2, 3 (for Windows or NT), or 4, and returns it. It allocates the memory |
| 469 | % necessary for the new Image structure and returns a pointer to the new |
| 470 | % image. |
| 471 | % |
| 472 | % The format of the ReadBMPImage method is: |
| 473 | % |
| 474 | % image=ReadBMPImage(image_info) |
| 475 | % |
| 476 | % A description of each parameter follows: |
| 477 | % |
| 478 | % o image_info: the image info. |
| 479 | % |
| 480 | % o exception: return any errors or warnings in this structure. |
| 481 | % |
| 482 | */ |
| 483 | |
| 484 | static Image *ReadBMPImage(const ImageInfo *image_info,ExceptionInfo *exception) |
| 485 | { |
| 486 | BMPInfo |
| 487 | bmp_info; |
| 488 | |
| 489 | Image |
| 490 | *image; |
| 491 | |
| 492 | IndexPacket |
| 493 | index; |
| 494 | |
| 495 | long |
| 496 | y; |
| 497 | |
| 498 | MagickBooleanType |
| 499 | status; |
| 500 | |
| 501 | MagickOffsetType |
| 502 | offset, |
| 503 | start_position; |
| 504 | |
| 505 | register IndexPacket |
| 506 | *indexes; |
| 507 | |
| 508 | register long |
| 509 | x; |
| 510 | |
| 511 | register PixelPacket |
| 512 | *q; |
| 513 | |
| 514 | register long |
| 515 | i; |
| 516 | |
| 517 | register unsigned char |
| 518 | *p; |
| 519 | |
| 520 | ssize_t |
| 521 | count; |
| 522 | |
| 523 | size_t |
| 524 | length; |
| 525 | |
| 526 | unsigned char |
| 527 | magick[12], |
| 528 | *pixels; |
| 529 | |
| 530 | unsigned long |
| 531 | bit, |
| 532 | blue, |
| 533 | bytes_per_line, |
| 534 | green, |
| 535 | opacity, |
| 536 | red; |
| 537 | |
| 538 | /* |
| 539 | Open image file. |
| 540 | */ |
| 541 | assert(image_info != (const ImageInfo *) NULL); |
| 542 | assert(image_info->signature == MagickSignature); |
| 543 | if (image_info->debug != MagickFalse) |
| 544 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", |
| 545 | image_info->filename); |
| 546 | assert(exception != (ExceptionInfo *) NULL); |
| 547 | assert(exception->signature == MagickSignature); |
| 548 | image=AcquireImage(image_info); |
| 549 | status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); |
| 550 | if (status == MagickFalse) |
| 551 | { |
| 552 | image=DestroyImageList(image); |
| 553 | return((Image *) NULL); |
| 554 | } |
| 555 | /* |
| 556 | Determine if this a BMP file. |
| 557 | */ |
| 558 | (void) ResetMagickMemory(&bmp_info,0,sizeof(bmp_info)); |
| 559 | bmp_info.ba_offset=0; |
| 560 | start_position=0; |
| 561 | count=ReadBlob(image,2,magick); |
| 562 | do |
| 563 | { |
| 564 | LongPixelPacket |
| 565 | shift; |
| 566 | |
| 567 | PixelPacket |
| 568 | quantum_bits; |
| 569 | |
| 570 | unsigned long |
| 571 | profile_data, |
| 572 | profile_size; |
| 573 | |
| 574 | /* |
| 575 | Verify BMP identifier. |
| 576 | */ |
| 577 | if (bmp_info.ba_offset == 0) |
| 578 | start_position=TellBlob(image)-2; |
| 579 | bmp_info.ba_offset=0; |
| 580 | while (LocaleNCompare((char *) magick,"BA",2) == 0) |
| 581 | { |
| 582 | bmp_info.file_size=ReadBlobLSBLong(image); |
| 583 | bmp_info.ba_offset=ReadBlobLSBLong(image); |
| 584 | bmp_info.offset_bits=ReadBlobLSBLong(image); |
| 585 | count=ReadBlob(image,2,magick); |
| 586 | if (count != 2) |
| 587 | break; |
| 588 | } |
| 589 | if (image->debug != MagickFalse) |
| 590 | (void) LogMagickEvent(CoderEvent,GetMagickModule()," Magick: %c%c", |
| 591 | magick[0],magick[1]); |
| 592 | if ((count == 0) || ((LocaleNCompare((char *) magick,"BM",2) != 0) && |
| 593 | (LocaleNCompare((char *) magick,"CI",2) != 0))) |
| 594 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| 595 | bmp_info.file_size=ReadBlobLSBLong(image); |
| 596 | (void) ReadBlobLSBLong(image); |
| 597 | bmp_info.offset_bits=ReadBlobLSBLong(image); |
| 598 | bmp_info.size=ReadBlobLSBLong(image); |
| 599 | if (image->debug != MagickFalse) |
| 600 | (void) LogMagickEvent(CoderEvent,GetMagickModule()," BMP size: %u", |
| 601 | bmp_info.size); |
| 602 | if (bmp_info.size == 12) |
| 603 | { |
| 604 | /* |
| 605 | OS/2 BMP image file. |
| 606 | */ |
| 607 | bmp_info.width=(short) ReadBlobLSBShort(image); |
| 608 | bmp_info.height=(short) ReadBlobLSBShort(image); |
| 609 | bmp_info.planes=ReadBlobLSBShort(image); |
| 610 | bmp_info.bits_per_pixel=ReadBlobLSBShort(image); |
| 611 | bmp_info.x_pixels=0; |
| 612 | bmp_info.y_pixels=0; |
| 613 | bmp_info.number_colors=0; |
| 614 | bmp_info.compression=BI_RGB; |
| 615 | bmp_info.image_size=0; |
| 616 | bmp_info.alpha_mask=0; |
| 617 | if (image->debug != MagickFalse) |
| 618 | { |
| 619 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 620 | " Format: OS/2 Bitmap"); |
| 621 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 622 | " Geometry: %ldx%ld",bmp_info.width,bmp_info.height); |
| 623 | } |
| 624 | } |
| 625 | else |
| 626 | { |
| 627 | /* |
| 628 | Microsoft Windows BMP image file. |
| 629 | */ |
| 630 | if (bmp_info.size < 40) |
| 631 | ThrowReaderException(CorruptImageError,"NonOS2HeaderSizeError"); |
| 632 | bmp_info.width=(int) ReadBlobLSBLong(image); |
| 633 | bmp_info.height=(int) ReadBlobLSBLong(image); |
| 634 | bmp_info.planes=ReadBlobLSBShort(image); |
| 635 | bmp_info.bits_per_pixel=ReadBlobLSBShort(image); |
| 636 | bmp_info.compression=ReadBlobLSBLong(image); |
| 637 | bmp_info.image_size=ReadBlobLSBLong(image); |
| 638 | bmp_info.x_pixels=ReadBlobLSBLong(image); |
| 639 | bmp_info.y_pixels=ReadBlobLSBLong(image); |
| 640 | bmp_info.number_colors=ReadBlobLSBLong(image); |
| 641 | bmp_info.colors_important=ReadBlobLSBLong(image); |
| 642 | profile_data=0; |
| 643 | profile_size=0; |
| 644 | if (image->debug != MagickFalse) |
| 645 | { |
| 646 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 647 | " Format: MS Windows bitmap"); |
| 648 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 649 | " Geometry: %ldx%ld",bmp_info.width,bmp_info.height); |
| 650 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 651 | " Bits per pixel: %d",bmp_info.bits_per_pixel); |
| 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(), |
| 693 | " Compression: UNKNOWN (%u)",bmp_info.compression); |
| 694 | } |
| 695 | } |
| 696 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 697 | " Number of colors: %u",bmp_info.number_colors); |
| 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 |
| 705 | sum; |
| 706 | |
| 707 | /* |
| 708 | Read color management information. |
| 709 | */ |
| 710 | bmp_info.alpha_mask=ReadBlobLSBLong(image); |
| 711 | bmp_info.colorspace=(long) ReadBlobLSBLong(image); |
| 712 | /* |
| 713 | Decode 2^30 fixed point formatted CIE primaries. |
| 714 | */ |
| 715 | bmp_info.red_primary.x=(double) ReadBlobLSBLong(image)/0x3ffffff; |
| 716 | bmp_info.red_primary.y=(double) ReadBlobLSBLong(image)/0x3ffffff; |
| 717 | bmp_info.red_primary.z=(double) ReadBlobLSBLong(image)/0x3ffffff; |
| 718 | bmp_info.green_primary.x=(double) ReadBlobLSBLong(image)/0x3ffffff; |
| 719 | bmp_info.green_primary.y=(double) ReadBlobLSBLong(image)/0x3ffffff; |
| 720 | bmp_info.green_primary.z=(double) ReadBlobLSBLong(image)/0x3ffffff; |
| 721 | bmp_info.blue_primary.x=(double) ReadBlobLSBLong(image)/0x3ffffff; |
| 722 | bmp_info.blue_primary.y=(double) ReadBlobLSBLong(image)/0x3ffffff; |
| 723 | bmp_info.blue_primary.z=(double) ReadBlobLSBLong(image)/0x3ffffff; |
| 724 | sum=bmp_info.red_primary.x+bmp_info.red_primary.x+ |
| 725 | bmp_info.red_primary.z; |
| 726 | image->chromaticity.red_primary.x/=sum; |
| 727 | image->chromaticity.red_primary.y/=sum; |
| 728 | sum=bmp_info.green_primary.x+bmp_info.green_primary.x+ |
| 729 | bmp_info.green_primary.z; |
| 730 | image->chromaticity.green_primary.x/=sum; |
| 731 | image->chromaticity.green_primary.y/=sum; |
| 732 | sum=bmp_info.blue_primary.x+bmp_info.blue_primary.x+ |
| 733 | bmp_info.blue_primary.z; |
| 734 | image->chromaticity.blue_primary.x/=sum; |
| 735 | image->chromaticity.blue_primary.y/=sum; |
| 736 | /* |
| 737 | Decode 16^16 fixed point formatted gamma_scales. |
| 738 | */ |
| 739 | bmp_info.gamma_scale.x=(double) ReadBlobLSBLong(image)/0xffff; |
| 740 | bmp_info.gamma_scale.y=(double) ReadBlobLSBLong(image)/0xffff; |
| 741 | bmp_info.gamma_scale.z=(double) ReadBlobLSBLong(image)/0xffff; |
| 742 | /* |
| 743 | Compute a single gamma from the BMP 3-channel gamma. |
| 744 | */ |
| 745 | image->gamma=(bmp_info.gamma_scale.x+bmp_info.gamma_scale.y+ |
| 746 | bmp_info.gamma_scale.z)/3.0; |
| 747 | } |
| 748 | if (bmp_info.size > 108) |
| 749 | { |
| 750 | unsigned long |
| 751 | intent; |
| 752 | |
| 753 | /* |
| 754 | Read BMP Version 5 color management information. |
| 755 | */ |
| 756 | intent=ReadBlobLSBLong(image); |
| 757 | switch ((int) intent) |
| 758 | { |
| 759 | case LCS_GM_BUSINESS: |
| 760 | { |
| 761 | image->rendering_intent=SaturationIntent; |
| 762 | break; |
| 763 | } |
| 764 | case LCS_GM_GRAPHICS: |
| 765 | { |
| 766 | image->rendering_intent=RelativeIntent; |
| 767 | break; |
| 768 | } |
| 769 | case LCS_GM_IMAGES: |
| 770 | { |
| 771 | image->rendering_intent=PerceptualIntent; |
| 772 | break; |
| 773 | } |
| 774 | case LCS_GM_ABS_COLORIMETRIC: |
| 775 | { |
| 776 | image->rendering_intent=AbsoluteIntent; |
| 777 | break; |
| 778 | } |
| 779 | } |
| 780 | profile_data=ReadBlobLSBLong(image); |
| 781 | profile_size=ReadBlobLSBLong(image); |
| 782 | (void) ReadBlobLSBLong(image); /* Reserved byte */ |
| 783 | } |
| 784 | } |
| 785 | if ((bmp_info.compression != BI_RGB) && |
| 786 | ((MagickSizeType) bmp_info.file_size != GetBlobSize(image))) |
| 787 | (void) ThrowMagickException(exception,GetMagickModule(),CorruptImageError, |
| 788 | "LengthAndFilesizeDoNotMatch","`%s'",image->filename); |
| 789 | if (bmp_info.width <= 0) |
| 790 | ThrowReaderException(CorruptImageError,"NegativeOrZeroImageSize"); |
| 791 | if (bmp_info.height == 0) |
| 792 | ThrowReaderException(CorruptImageError,"NegativeOrZeroImageSize"); |
| 793 | if (bmp_info.planes != 1) |
| 794 | ThrowReaderException(CorruptImageError,"StaticPlanesValueNotEqualToOne"); |
| 795 | if ((bmp_info.bits_per_pixel != 1) && (bmp_info.bits_per_pixel != 4) && |
| 796 | (bmp_info.bits_per_pixel != 8) && (bmp_info.bits_per_pixel != 16) && |
| 797 | (bmp_info.bits_per_pixel != 24) && (bmp_info.bits_per_pixel != 32)) |
| 798 | ThrowReaderException(CorruptImageError,"UnrecognizedBitsPerPixel"); |
| 799 | if (bmp_info.number_colors > (1U << bmp_info.bits_per_pixel)) |
| 800 | { |
| 801 | if (bmp_info.bits_per_pixel < 24) |
| 802 | ThrowReaderException(CorruptImageError,"UnrecognizedNumberOfColors"); |
| 803 | bmp_info.number_colors=0; |
| 804 | } |
| 805 | if (bmp_info.compression > 3) |
| 806 | ThrowReaderException(CorruptImageError,"UnrecognizedImageCompression"); |
| 807 | if ((bmp_info.compression == 1) && (bmp_info.bits_per_pixel != 8)) |
| 808 | ThrowReaderException(CorruptImageError,"UnrecognizedBitsPerPixel"); |
| 809 | if ((bmp_info.compression == 2) && (bmp_info.bits_per_pixel != 4)) |
| 810 | ThrowReaderException(CorruptImageError,"UnrecognizedBitsPerPixel"); |
| 811 | if ((bmp_info.compression == 3) && (bmp_info.bits_per_pixel < 16)) |
| 812 | ThrowReaderException(CorruptImageError,"UnrecognizedBitsPerPixel"); |
| 813 | switch (bmp_info.compression) |
| 814 | { |
| 815 | case BI_RGB: |
| 816 | case BI_RLE8: |
| 817 | case BI_RLE4: |
| 818 | case BI_BITFIELDS: |
| 819 | break; |
| 820 | case BI_JPEG: |
| 821 | ThrowReaderException(CoderError,"JPEGCompressNotSupported"); |
| 822 | case BI_PNG: |
| 823 | ThrowReaderException(CoderError,"PNGCompressNotSupported"); |
| 824 | default: |
| 825 | ThrowReaderException(CorruptImageError,"UnrecognizedImageCompression"); |
| 826 | } |
| 827 | image->columns=(unsigned long) MagickAbsoluteValue(bmp_info.width); |
| 828 | image->rows=(unsigned long) MagickAbsoluteValue(bmp_info.height); |
| 829 | image->depth=bmp_info.bits_per_pixel <= 8 ? bmp_info.bits_per_pixel : 8; |
| 830 | image->matte=bmp_info.alpha_mask != 0 ? MagickTrue : MagickFalse; |
| 831 | if ((bmp_info.number_colors != 0) || (bmp_info.bits_per_pixel < 16)) |
| 832 | { |
| 833 | image->storage_class=PseudoClass; |
| 834 | image->colors=bmp_info.number_colors; |
| 835 | if (image->colors == 0) |
| 836 | image->colors=1L << bmp_info.bits_per_pixel; |
| 837 | } |
| 838 | if (image->storage_class == PseudoClass) |
| 839 | { |
| 840 | unsigned char |
| 841 | *bmp_colormap; |
| 842 | |
| 843 | size_t |
| 844 | packet_size; |
| 845 | |
| 846 | /* |
| 847 | Read BMP raster colormap. |
| 848 | */ |
| 849 | if (image->debug != MagickFalse) |
| 850 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 851 | " Reading colormap of %ld colors",image->colors); |
| 852 | if (AcquireImageColormap(image,image->colors) == MagickFalse) |
| 853 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
| 854 | bmp_colormap=(unsigned char *) AcquireQuantumMemory((size_t) |
| 855 | image->colors,4*sizeof(*bmp_colormap)); |
| 856 | if (bmp_colormap == (unsigned char *) NULL) |
| 857 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
| 858 | if ((bmp_info.size == 12) || (bmp_info.size == 64)) |
| 859 | packet_size=3; |
| 860 | else |
| 861 | packet_size=4; |
| 862 | offset=SeekBlob(image,start_position+14+bmp_info.size,SEEK_SET); |
| 863 | if (offset < 0) |
| 864 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| 865 | count=ReadBlob(image,packet_size*image->colors,bmp_colormap); |
| 866 | if (count != (ssize_t) (packet_size*image->colors)) |
| 867 | ThrowReaderException(CorruptImageError,"InsufficientImageDataInFile"); |
| 868 | p=bmp_colormap; |
| 869 | for (i=0; i < (long) image->colors; i++) |
| 870 | { |
| 871 | image->colormap[i].blue=ScaleCharToQuantum(*p++); |
| 872 | image->colormap[i].green=ScaleCharToQuantum(*p++); |
| 873 | image->colormap[i].red=ScaleCharToQuantum(*p++); |
| 874 | if (packet_size == 4) |
| 875 | p++; |
| 876 | } |
| 877 | bmp_colormap=(unsigned char *) RelinquishMagickMemory(bmp_colormap); |
| 878 | } |
| 879 | if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0)) |
| 880 | if (image->scene >= (image_info->scene+image_info->number_scenes-1)) |
| 881 | break; |
| 882 | /* |
| 883 | Read image data. |
| 884 | */ |
| 885 | offset=SeekBlob(image,start_position+bmp_info.offset_bits,SEEK_SET); |
| 886 | if (offset < 0) |
| 887 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| 888 | if (bmp_info.compression == BI_RLE4) |
| 889 | bmp_info.bits_per_pixel<<=1; |
| 890 | bytes_per_line=4*((image->columns*bmp_info.bits_per_pixel+31)/32); |
| 891 | length=(size_t) bytes_per_line*image->rows; |
| 892 | pixels=(unsigned char *) AcquireQuantumMemory((size_t) image->rows, |
| 893 | MagickMax(bytes_per_line,image->columns+256UL)*sizeof(*pixels)); |
| 894 | if (pixels == (unsigned char *) NULL) |
| 895 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
| 896 | if ((bmp_info.compression == BI_RGB) || |
| 897 | (bmp_info.compression == BI_BITFIELDS)) |
| 898 | { |
| 899 | if (image->debug != MagickFalse) |
| 900 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 901 | " Reading pixels (%ld bytes)",(long) length); |
| 902 | count=ReadBlob(image,length,pixels); |
| 903 | if (count != (ssize_t) length) |
| 904 | ThrowReaderException(CorruptImageError,"InsufficientImageDataInFile"); |
| 905 | } |
| 906 | else |
| 907 | { |
| 908 | /* |
| 909 | Convert run-length encoded raster pixels. |
| 910 | */ |
| 911 | status=DecodeImage(image,bmp_info.compression,pixels); |
| 912 | if (status == MagickFalse) |
| 913 | ThrowReaderException(CorruptImageError, |
| 914 | "UnableToRunlengthDecodeImage"); |
| 915 | } |
| 916 | /* |
| 917 | Initialize image structure. |
| 918 | */ |
| 919 | image->x_resolution=(double) bmp_info.x_pixels/100.0; |
| 920 | image->y_resolution=(double) bmp_info.y_pixels/100.0; |
| 921 | image->units=PixelsPerCentimeterResolution; |
| 922 | /* |
| 923 | Convert BMP raster image to pixel packets. |
| 924 | */ |
| 925 | if (bmp_info.compression == BI_RGB) |
| 926 | { |
| 927 | bmp_info.alpha_mask=0; |
| 928 | bmp_info.red_mask=0x00ff0000U; |
| 929 | bmp_info.green_mask=0x0000ff00U; |
| 930 | bmp_info.blue_mask=0x000000ffU; |
| 931 | if (bmp_info.bits_per_pixel == 16) |
| 932 | { |
| 933 | /* |
| 934 | RGB555. |
| 935 | */ |
| 936 | bmp_info.red_mask=0x00007c00U; |
| 937 | bmp_info.green_mask=0x000003e0U; |
| 938 | bmp_info.blue_mask=0x0000001fU; |
| 939 | } |
| 940 | } |
| 941 | if ((bmp_info.bits_per_pixel == 16) || (bmp_info.bits_per_pixel == 32)) |
| 942 | { |
| 943 | register unsigned long |
| 944 | sample; |
| 945 | |
| 946 | /* |
| 947 | Get shift and quantum bits info from bitfield masks. |
| 948 | */ |
| 949 | (void) ResetMagickMemory(&shift,0,sizeof(shift)); |
| 950 | (void) ResetMagickMemory(&quantum_bits,0,sizeof(quantum_bits)); |
| 951 | if (bmp_info.red_mask != 0) |
| 952 | while (((bmp_info.red_mask << shift.red) & 0x80000000UL) == 0) |
| 953 | shift.red++; |
| 954 | if (bmp_info.green_mask != 0) |
| 955 | while (((bmp_info.green_mask << shift.green) & 0x80000000UL) == 0) |
| 956 | shift.green++; |
| 957 | if (bmp_info.blue_mask != 0) |
| 958 | while (((bmp_info.blue_mask << shift.blue) & 0x80000000UL) == 0) |
| 959 | shift.blue++; |
| 960 | if (bmp_info.alpha_mask != 0) |
| 961 | while (((bmp_info.alpha_mask << shift.opacity) & 0x80000000UL) == 0) |
| 962 | shift.opacity++; |
| 963 | sample=shift.red; |
| 964 | while (((bmp_info.red_mask << sample) & 0x80000000UL) != 0) |
| 965 | sample++; |
| 966 | quantum_bits.red=(Quantum) (sample-shift.red); |
| 967 | sample=shift.green; |
| 968 | while (((bmp_info.green_mask << sample) & 0x80000000UL) != 0) |
| 969 | sample++; |
| 970 | quantum_bits.green=(Quantum) (sample-shift.green); |
| 971 | sample=shift.blue; |
| 972 | while (((bmp_info.blue_mask << sample) & 0x80000000UL) != 0) |
| 973 | sample++; |
| 974 | quantum_bits.blue=(Quantum) (sample-shift.blue); |
| 975 | sample=shift.opacity; |
| 976 | while (((bmp_info.alpha_mask << sample) & 0x80000000UL) != 0) |
| 977 | sample++; |
| 978 | quantum_bits.opacity=(Quantum) (sample-shift.opacity); |
| 979 | } |
| 980 | switch (bmp_info.bits_per_pixel) |
| 981 | { |
| 982 | case 1: |
| 983 | { |
| 984 | /* |
| 985 | Convert bitmap scanline. |
| 986 | */ |
| 987 | for (y=(long) image->rows-1; y >= 0; y--) |
| 988 | { |
| 989 | p=pixels+(image->rows-y-1)*bytes_per_line; |
| 990 | q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| 991 | if (q == (PixelPacket *) NULL) |
| 992 | break; |
| 993 | indexes=GetAuthenticIndexQueue(image); |
| 994 | for (x=0; x < ((long) image->columns-7); x+=8) |
| 995 | { |
| 996 | for (bit=0; bit < 8; bit++) |
| 997 | { |
| 998 | index=(IndexPacket) (((*p) & (0x80 >> bit)) != 0 ? 0x01 : 0x00); |
| 999 | indexes[x+bit]=index; |
| 1000 | *q++=image->colormap[(long) index]; |
| 1001 | } |
| 1002 | p++; |
| 1003 | } |
| 1004 | if ((image->columns % 8) != 0) |
| 1005 | { |
| 1006 | for (bit=0; bit < (image->columns % 8); bit++) |
| 1007 | { |
| 1008 | index=(IndexPacket) (((*p) & (0x80 >> bit)) != 0 ? 0x01 : 0x00); |
| 1009 | indexes[x+bit]=index; |
| 1010 | *q++=image->colormap[(long) index]; |
| 1011 | } |
| 1012 | p++; |
| 1013 | } |
| 1014 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 1015 | break; |
| 1016 | if (image->previous == (Image *) NULL) |
| 1017 | { |
| 1018 | status=SetImageProgress(image,LoadImageTag,y,image->rows); |
| 1019 | if (status == MagickFalse) |
| 1020 | break; |
| 1021 | } |
| 1022 | } |
| 1023 | break; |
| 1024 | } |
| 1025 | case 4: |
| 1026 | { |
| 1027 | /* |
| 1028 | Convert PseudoColor scanline. |
| 1029 | */ |
| 1030 | for (y=(long) image->rows-1; y >= 0; y--) |
| 1031 | { |
| 1032 | p=pixels+(image->rows-y-1)*bytes_per_line; |
| 1033 | q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| 1034 | if (q == (PixelPacket *) NULL) |
| 1035 | break; |
| 1036 | indexes=GetAuthenticIndexQueue(image); |
| 1037 | for (x=0; x < ((long) image->columns-1); x+=2) |
| 1038 | { |
| 1039 | index=ConstrainColormapIndex(image,(*p >> 4) & 0x0f); |
| 1040 | indexes[x]=index; |
| 1041 | *q++=image->colormap[(long) index]; |
| 1042 | index=ConstrainColormapIndex(image,*p & 0x0f); |
| 1043 | indexes[x+1]=index; |
| 1044 | *q++=image->colormap[(long) index]; |
| 1045 | p++; |
| 1046 | } |
| 1047 | if ((image->columns % 2) != 0) |
| 1048 | { |
| 1049 | index=ConstrainColormapIndex(image,(*p >> 4) & 0xf); |
| 1050 | indexes[x]=index; |
| 1051 | *q++=image->colormap[(long) index]; |
| 1052 | p++; |
| 1053 | } |
| 1054 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 1055 | break; |
| 1056 | if (image->previous == (Image *) NULL) |
| 1057 | { |
| 1058 | status=SetImageProgress(image,LoadImageTag,y,image->rows); |
| 1059 | if (status == MagickFalse) |
| 1060 | break; |
| 1061 | } |
| 1062 | } |
| 1063 | break; |
| 1064 | } |
| 1065 | case 8: |
| 1066 | { |
| 1067 | /* |
| 1068 | Convert PseudoColor scanline. |
| 1069 | */ |
| 1070 | if ((bmp_info.compression == BI_RLE8) || |
| 1071 | (bmp_info.compression == BI_RLE4)) |
| 1072 | bytes_per_line=image->columns; |
| 1073 | for (y=(long) image->rows-1; y >= 0; y--) |
| 1074 | { |
| 1075 | p=pixels+(image->rows-y-1)*bytes_per_line; |
| 1076 | q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| 1077 | if (q == (PixelPacket *) NULL) |
| 1078 | break; |
| 1079 | indexes=GetAuthenticIndexQueue(image); |
| 1080 | for (x = (long)image->columns; x != 0; --x) |
| 1081 | { |
| 1082 | index=ConstrainColormapIndex(image,*p); |
| 1083 | *indexes++=index; |
| 1084 | *q=image->colormap[(long) index]; |
| 1085 | p++; |
| 1086 | q++; |
| 1087 | } |
| 1088 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 1089 | break; |
| 1090 | offset=(MagickOffsetType) (image->rows-y-1); |
| 1091 | if (image->previous == (Image *) NULL) |
| 1092 | { |
| 1093 | status=SetImageProgress(image,LoadImageTag,y,image->rows); |
| 1094 | if (status == MagickFalse) |
| 1095 | break; |
| 1096 | } |
| 1097 | } |
| 1098 | break; |
| 1099 | } |
| 1100 | case 16: |
| 1101 | { |
| 1102 | unsigned long |
| 1103 | pixel; |
| 1104 | |
| 1105 | /* |
| 1106 | Convert bitfield encoded 16-bit PseudoColor scanline. |
| 1107 | */ |
| 1108 | if (bmp_info.compression != BI_RGB && |
| 1109 | bmp_info.compression != BI_BITFIELDS) |
| 1110 | ThrowReaderException(CorruptImageError, |
| 1111 | "UnrecognizedImageCompression"); |
| 1112 | bytes_per_line=2*(image->columns+image->columns % 2); |
| 1113 | image->storage_class=DirectClass; |
| 1114 | for (y=(long) image->rows-1; y >= 0; y--) |
| 1115 | { |
| 1116 | p=pixels+(image->rows-y-1)*bytes_per_line; |
| 1117 | q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| 1118 | if (q == (PixelPacket *) NULL) |
| 1119 | break; |
| 1120 | for (x=0; x < (long) image->columns; x++) |
| 1121 | { |
| 1122 | pixel=(unsigned long) (*p++); |
| 1123 | pixel|=(*p++) << 8; |
| 1124 | red=((pixel & bmp_info.red_mask) << shift.red) >> 16; |
| 1125 | if (quantum_bits.red == 5) |
| 1126 | red|=((red & 0xe000) >> 5); |
| 1127 | if (quantum_bits.red <= 8) |
| 1128 | red|=((red & 0xff00) >> 8); |
| 1129 | green=((pixel & bmp_info.green_mask) << shift.green) >> 16; |
| 1130 | if (quantum_bits.green == 5) |
| 1131 | green|=((green & 0xe000) >> 5); |
| 1132 | if (quantum_bits.green == 6) |
| 1133 | green|=((green & 0xc000) >> 6); |
| 1134 | if (quantum_bits.green <= 8) |
| 1135 | green|=((green & 0xff00) >> 8); |
| 1136 | blue=((pixel & bmp_info.blue_mask) << shift.blue) >> 16; |
| 1137 | if (quantum_bits.blue == 5) |
| 1138 | blue|=((blue & 0xe000) >> 5); |
| 1139 | if (quantum_bits.blue <= 8) |
| 1140 | blue|=((blue & 0xff00) >> 8); |
| 1141 | opacity=((pixel & bmp_info.alpha_mask) << shift.opacity) >> 16; |
| 1142 | if (quantum_bits.opacity <= 8) |
| 1143 | opacity|=((opacity & 0xff00) >> 8); |
| 1144 | q->red=ScaleShortToQuantum((unsigned short) red); |
| 1145 | q->green=ScaleShortToQuantum((unsigned short) green); |
| 1146 | q->blue=ScaleShortToQuantum((unsigned short) blue); |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1147 | SetOpacityPixelComponent(q,OpaqueOpacity); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1148 | if (image->matte != MagickFalse) |
cristy | ce8c277 | 2010-02-26 23:43:26 +0000 | [diff] [blame] | 1149 | q->opacity=ScaleShortToQuantum((unsigned short) (65535-opacity)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1150 | q++; |
| 1151 | } |
| 1152 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 1153 | break; |
| 1154 | offset=(MagickOffsetType) (image->rows-y-1); |
| 1155 | if (image->previous == (Image *) NULL) |
| 1156 | { |
| 1157 | status=SetImageProgress(image,LoadImageTag,y,image->rows); |
| 1158 | if (status == MagickFalse) |
| 1159 | break; |
| 1160 | } |
| 1161 | } |
| 1162 | break; |
| 1163 | } |
| 1164 | case 24: |
| 1165 | { |
| 1166 | /* |
| 1167 | Convert DirectColor scanline. |
| 1168 | */ |
| 1169 | bytes_per_line=4*((image->columns*24+31)/32); |
| 1170 | for (y=(long) image->rows-1; y >= 0; y--) |
| 1171 | { |
| 1172 | p=pixels+(image->rows-y-1)*bytes_per_line; |
| 1173 | q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| 1174 | if (q == (PixelPacket *) NULL) |
| 1175 | break; |
| 1176 | for (x=0; x < (long) image->columns; x++) |
| 1177 | { |
| 1178 | q->blue=ScaleCharToQuantum(*p++); |
| 1179 | q->green=ScaleCharToQuantum(*p++); |
| 1180 | q->red=ScaleCharToQuantum(*p++); |
| 1181 | q++; |
| 1182 | } |
| 1183 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 1184 | break; |
| 1185 | offset=(MagickOffsetType) (image->rows-y-1); |
| 1186 | if (image->previous == (Image *) NULL) |
| 1187 | { |
| 1188 | status=SetImageProgress(image,LoadImageTag,y,image->rows); |
| 1189 | if (status == MagickFalse) |
| 1190 | break; |
| 1191 | } |
| 1192 | } |
| 1193 | break; |
| 1194 | } |
| 1195 | case 32: |
| 1196 | { |
| 1197 | /* |
| 1198 | Convert bitfield encoded DirectColor scanline. |
| 1199 | */ |
| 1200 | if ((bmp_info.compression != BI_RGB) && |
| 1201 | (bmp_info.compression != BI_BITFIELDS)) |
| 1202 | ThrowReaderException(CorruptImageError, |
| 1203 | "UnrecognizedImageCompression"); |
| 1204 | bytes_per_line=4*(image->columns); |
| 1205 | for (y=(long) image->rows-1; y >= 0; y--) |
| 1206 | { |
| 1207 | unsigned long |
| 1208 | pixel; |
| 1209 | |
| 1210 | p=pixels+(image->rows-y-1)*bytes_per_line; |
| 1211 | q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| 1212 | if (q == (PixelPacket *) NULL) |
| 1213 | break; |
| 1214 | for (x=0; x < (long) image->columns; x++) |
| 1215 | { |
| 1216 | pixel=(unsigned long) (*p++); |
| 1217 | pixel|=(*p++ << 8); |
| 1218 | pixel|=(*p++ << 16); |
| 1219 | pixel|=(*p++ << 24); |
| 1220 | red=((pixel & bmp_info.red_mask) << shift.red) >> 16; |
| 1221 | if (quantum_bits.red == 8) |
| 1222 | red|=(red >> 8); |
| 1223 | green=((pixel & bmp_info.green_mask) << shift.green) >> 16; |
| 1224 | if (quantum_bits.green == 8) |
| 1225 | green|=(green >> 8); |
| 1226 | blue=((pixel & bmp_info.blue_mask) << shift.blue) >> 16; |
| 1227 | if (quantum_bits.blue == 8) |
| 1228 | blue|=(blue >> 8); |
| 1229 | opacity=((pixel & bmp_info.alpha_mask) << shift.opacity) >> 16; |
| 1230 | if (quantum_bits.opacity == 8) |
| 1231 | opacity|=(opacity >> 8); |
| 1232 | q->red=ScaleShortToQuantum((unsigned short) red); |
| 1233 | q->green=ScaleShortToQuantum((unsigned short) green); |
| 1234 | q->blue=ScaleShortToQuantum((unsigned short) blue); |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1235 | SetOpacityPixelComponent(q,OpaqueOpacity); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1236 | if (image->matte != MagickFalse) |
cristy | 228ab74 | 2010-02-24 13:49:34 +0000 | [diff] [blame] | 1237 | q->opacity=ScaleShortToQuantum((unsigned short) (65535-opacity)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1238 | q++; |
| 1239 | } |
| 1240 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 1241 | break; |
| 1242 | offset=(MagickOffsetType) (image->rows-y-1); |
| 1243 | if (image->previous == (Image *) NULL) |
| 1244 | { |
| 1245 | status=SetImageProgress(image,LoadImageTag,y,image->rows); |
| 1246 | if (status == MagickFalse) |
| 1247 | break; |
| 1248 | } |
| 1249 | } |
| 1250 | break; |
| 1251 | } |
| 1252 | default: |
| 1253 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| 1254 | } |
| 1255 | pixels=(unsigned char *) RelinquishMagickMemory(pixels); |
| 1256 | if (EOFBlob(image) != MagickFalse) |
| 1257 | { |
| 1258 | ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile", |
| 1259 | image->filename); |
| 1260 | break; |
| 1261 | } |
| 1262 | if (bmp_info.height < 0) |
| 1263 | { |
| 1264 | Image |
| 1265 | *flipped_image; |
| 1266 | |
| 1267 | /* |
| 1268 | Correct image orientation. |
| 1269 | */ |
| 1270 | flipped_image=FlipImage(image,exception); |
cristy | 65e3b00 | 2010-04-13 21:20:56 +0000 | [diff] [blame] | 1271 | if (flipped_image != (Image *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1272 | { |
cristy | 65e3b00 | 2010-04-13 21:20:56 +0000 | [diff] [blame] | 1273 | DuplicateBlob(flipped_image,image); |
| 1274 | image=DestroyImage(image); |
| 1275 | image=flipped_image; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1276 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1277 | } |
| 1278 | /* |
| 1279 | Proceed to next image. |
| 1280 | */ |
| 1281 | if (image_info->number_scenes != 0) |
| 1282 | if (image->scene >= (image_info->scene+image_info->number_scenes-1)) |
| 1283 | break; |
| 1284 | *magick='\0'; |
| 1285 | if (bmp_info.ba_offset != 0) |
| 1286 | { |
| 1287 | offset=SeekBlob(image,(MagickOffsetType) bmp_info.ba_offset,SEEK_SET); |
| 1288 | if (offset < 0) |
| 1289 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| 1290 | } |
| 1291 | count=ReadBlob(image,2,magick); |
| 1292 | if ((count == 2) && (IsBMP(magick,2) != MagickFalse)) |
| 1293 | { |
| 1294 | /* |
| 1295 | Acquire next image structure. |
| 1296 | */ |
| 1297 | AcquireNextImage(image_info,image); |
| 1298 | if (GetNextImageInList(image) == (Image *) NULL) |
| 1299 | { |
| 1300 | image=DestroyImageList(image); |
| 1301 | return((Image *) NULL); |
| 1302 | } |
| 1303 | image=SyncNextImageInList(image); |
| 1304 | status=SetImageProgress(image,LoadImagesTag,TellBlob(image), |
| 1305 | GetBlobSize(image)); |
| 1306 | if (status == MagickFalse) |
| 1307 | break; |
| 1308 | } |
| 1309 | } while (IsBMP(magick,2) != MagickFalse); |
| 1310 | (void) CloseBlob(image); |
| 1311 | return(GetFirstImageInList(image)); |
| 1312 | } |
| 1313 | |
| 1314 | /* |
| 1315 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1316 | % % |
| 1317 | % % |
| 1318 | % % |
| 1319 | % R e g i s t e r B M P I m a g e % |
| 1320 | % % |
| 1321 | % % |
| 1322 | % % |
| 1323 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1324 | % |
| 1325 | % RegisterBMPImage() adds attributes for the BMP image format to |
| 1326 | % the list of supported formats. The attributes include the image format |
| 1327 | % tag, a method to read and/or write the format, whether the format |
| 1328 | % supports the saving of more than one frame to the same file or blob, |
| 1329 | % whether the format supports native in-memory I/O, and a brief |
| 1330 | % description of the format. |
| 1331 | % |
| 1332 | % The format of the RegisterBMPImage method is: |
| 1333 | % |
| 1334 | % unsigned long RegisterBMPImage(void) |
| 1335 | % |
| 1336 | */ |
| 1337 | ModuleExport unsigned long RegisterBMPImage(void) |
| 1338 | { |
| 1339 | MagickInfo |
| 1340 | *entry; |
| 1341 | |
| 1342 | entry=SetMagickInfo("BMP"); |
| 1343 | entry->decoder=(DecodeImageHandler *) ReadBMPImage; |
| 1344 | entry->encoder=(EncodeImageHandler *) WriteBMPImage; |
| 1345 | entry->magick=(IsImageFormatHandler *) IsBMP; |
cristy | 2e3d524 | 2010-04-16 23:44:55 +0000 | [diff] [blame] | 1346 | entry->description=ConstantString("Microsoft Windows bitmap image"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1347 | entry->module=ConstantString("BMP"); |
| 1348 | entry->adjoin=MagickFalse; |
| 1349 | entry->seekable_stream=MagickTrue; |
| 1350 | (void) RegisterMagickInfo(entry); |
| 1351 | entry=SetMagickInfo("BMP2"); |
| 1352 | entry->encoder=(EncodeImageHandler *) WriteBMPImage; |
| 1353 | entry->magick=(IsImageFormatHandler *) IsBMP; |
cristy | 2dd92ae | 2010-04-04 16:10:59 +0000 | [diff] [blame] | 1354 | entry->description=ConstantString("Microsoft Windows bitmap image (V2)"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1355 | entry->module=ConstantString("BMP"); |
| 1356 | entry->adjoin=MagickFalse; |
| 1357 | entry->seekable_stream=MagickTrue; |
| 1358 | (void) RegisterMagickInfo(entry); |
| 1359 | entry=SetMagickInfo("BMP3"); |
| 1360 | entry->encoder=(EncodeImageHandler *) WriteBMPImage; |
| 1361 | entry->magick=(IsImageFormatHandler *) IsBMP; |
cristy | 2dd92ae | 2010-04-04 16:10:59 +0000 | [diff] [blame] | 1362 | entry->description=ConstantString("Microsoft Windows bitmap image (V3)"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1363 | entry->module=ConstantString("BMP"); |
| 1364 | entry->adjoin=MagickFalse; |
| 1365 | entry->seekable_stream=MagickTrue; |
| 1366 | (void) RegisterMagickInfo(entry); |
| 1367 | return(MagickImageCoderSignature); |
| 1368 | } |
| 1369 | |
| 1370 | /* |
| 1371 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1372 | % % |
| 1373 | % % |
| 1374 | % % |
| 1375 | % U n r e g i s t e r B M P I m a g e % |
| 1376 | % % |
| 1377 | % % |
| 1378 | % % |
| 1379 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1380 | % |
| 1381 | % UnregisterBMPImage() removes format registrations made by the |
| 1382 | % BMP module from the list of supported formats. |
| 1383 | % |
| 1384 | % The format of the UnregisterBMPImage method is: |
| 1385 | % |
| 1386 | % UnregisterBMPImage(void) |
| 1387 | % |
| 1388 | */ |
| 1389 | ModuleExport void UnregisterBMPImage(void) |
| 1390 | { |
| 1391 | (void) UnregisterMagickInfo("BMP"); |
| 1392 | (void) UnregisterMagickInfo("BMP2"); |
| 1393 | (void) UnregisterMagickInfo("BMP3"); |
| 1394 | } |
| 1395 | |
| 1396 | /* |
| 1397 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1398 | % % |
| 1399 | % % |
| 1400 | % % |
| 1401 | % W r i t e B M P I m a g e % |
| 1402 | % % |
| 1403 | % % |
| 1404 | % % |
| 1405 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1406 | % |
| 1407 | % WriteBMPImage() writes an image in Microsoft Windows bitmap encoded |
| 1408 | % image format, version 3 for Windows or (if the image has a matte channel) |
| 1409 | % version 4. |
| 1410 | % |
| 1411 | % The format of the WriteBMPImage method is: |
| 1412 | % |
| 1413 | % MagickBooleanType WriteBMPImage(const ImageInfo *image_info,Image *image) |
| 1414 | % |
| 1415 | % A description of each parameter follows. |
| 1416 | % |
| 1417 | % o image_info: the image info. |
| 1418 | % |
| 1419 | % o image: The image. |
| 1420 | % |
| 1421 | */ |
| 1422 | static MagickBooleanType WriteBMPImage(const ImageInfo *image_info,Image *image) |
| 1423 | { |
| 1424 | BMPInfo |
| 1425 | bmp_info; |
| 1426 | |
| 1427 | const StringInfo |
| 1428 | *profile; |
| 1429 | |
| 1430 | long |
| 1431 | y; |
| 1432 | |
| 1433 | MagickBooleanType |
| 1434 | have_color_info, |
| 1435 | status; |
| 1436 | |
| 1437 | MagickOffsetType |
| 1438 | scene; |
| 1439 | |
| 1440 | register const IndexPacket |
| 1441 | *indexes; |
| 1442 | |
| 1443 | register const PixelPacket |
| 1444 | *p; |
| 1445 | |
| 1446 | register long |
| 1447 | i, |
| 1448 | x; |
| 1449 | |
| 1450 | register unsigned char |
| 1451 | *q; |
| 1452 | |
| 1453 | unsigned char |
| 1454 | *bmp_data, |
| 1455 | *pixels; |
| 1456 | |
| 1457 | unsigned long |
| 1458 | bytes_per_line, |
| 1459 | type; |
| 1460 | |
| 1461 | /* |
| 1462 | Open output image file. |
| 1463 | */ |
| 1464 | assert(image_info != (const ImageInfo *) NULL); |
| 1465 | assert(image_info->signature == MagickSignature); |
| 1466 | assert(image != (Image *) NULL); |
| 1467 | assert(image->signature == MagickSignature); |
| 1468 | if (image->debug != MagickFalse) |
| 1469 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 1470 | status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); |
| 1471 | if (status == MagickFalse) |
| 1472 | return(status); |
| 1473 | type=4; |
| 1474 | if (LocaleCompare(image_info->magick,"BMP2") == 0) |
| 1475 | type=2; |
| 1476 | else |
| 1477 | if (LocaleCompare(image_info->magick,"BMP3") == 0) |
| 1478 | type=3; |
| 1479 | scene=0; |
| 1480 | do |
| 1481 | { |
| 1482 | /* |
| 1483 | Initialize BMP raster file header. |
| 1484 | */ |
| 1485 | if (image->colorspace != RGBColorspace) |
| 1486 | (void) TransformImageColorspace(image,RGBColorspace); |
| 1487 | (void) ResetMagickMemory(&bmp_info,0,sizeof(bmp_info)); |
| 1488 | bmp_info.file_size=14+12; |
| 1489 | if (type > 2) |
| 1490 | bmp_info.file_size+=28; |
| 1491 | bmp_info.offset_bits=bmp_info.file_size; |
| 1492 | bmp_info.compression=BI_RGB; |
| 1493 | if ((image->storage_class == PseudoClass) && (image->colors > 256)) |
| 1494 | (void) SetImageStorageClass(image,DirectClass); |
| 1495 | if (image->storage_class != DirectClass) |
| 1496 | { |
| 1497 | /* |
| 1498 | Colormapped BMP raster. |
| 1499 | */ |
| 1500 | bmp_info.bits_per_pixel=8; |
| 1501 | if (image->colors <= 2) |
| 1502 | bmp_info.bits_per_pixel=1; |
| 1503 | else |
| 1504 | if (image->colors <= 16) |
| 1505 | bmp_info.bits_per_pixel=4; |
| 1506 | else |
| 1507 | if (image->colors <= 256) |
| 1508 | bmp_info.bits_per_pixel=8; |
| 1509 | if (image_info->compression == RLECompression) |
| 1510 | bmp_info.bits_per_pixel=8; |
| 1511 | bmp_info.number_colors=1U << bmp_info.bits_per_pixel; |
| 1512 | if (image->matte != MagickFalse) |
| 1513 | (void) SetImageStorageClass(image,DirectClass); |
| 1514 | else |
| 1515 | if ((unsigned long) bmp_info.number_colors < image->colors) |
| 1516 | (void) SetImageStorageClass(image,DirectClass); |
| 1517 | else |
| 1518 | { |
| 1519 | bmp_info.file_size+=3*(1UL << bmp_info.bits_per_pixel); |
| 1520 | bmp_info.offset_bits+=3*(1UL << bmp_info.bits_per_pixel); |
| 1521 | if (type > 2) |
| 1522 | { |
| 1523 | bmp_info.file_size+=(1UL << bmp_info.bits_per_pixel); |
| 1524 | bmp_info.offset_bits+=(1UL << bmp_info.bits_per_pixel); |
| 1525 | } |
| 1526 | } |
| 1527 | } |
| 1528 | if (image->storage_class == DirectClass) |
| 1529 | { |
| 1530 | /* |
| 1531 | Full color BMP raster. |
| 1532 | */ |
| 1533 | bmp_info.number_colors=0; |
| 1534 | bmp_info.bits_per_pixel=(unsigned short) |
| 1535 | ((type > 3) && (image->matte != MagickFalse) ? 32 : 24); |
| 1536 | bmp_info.compression=(unsigned int) ((type > 3) && |
| 1537 | (image->matte != MagickFalse) ? BI_BITFIELDS : BI_RGB); |
| 1538 | } |
| 1539 | bytes_per_line=4*((image->columns*bmp_info.bits_per_pixel+31)/32); |
| 1540 | bmp_info.ba_offset=0; |
| 1541 | profile=GetImageProfile(image,"icc"); |
| 1542 | have_color_info=(image->rendering_intent != UndefinedIntent) || |
| 1543 | (profile != (StringInfo *) NULL) || (image->gamma != 0.0) ? MagickTrue : |
| 1544 | MagickFalse; |
| 1545 | if (type == 2) |
| 1546 | bmp_info.size=12; |
| 1547 | else |
| 1548 | if ((type == 3) || ((image->matte == MagickFalse) && |
| 1549 | (have_color_info == MagickFalse))) |
| 1550 | { |
| 1551 | type=3; |
| 1552 | bmp_info.size=40; |
| 1553 | } |
| 1554 | else |
| 1555 | { |
| 1556 | int |
| 1557 | extra_size; |
| 1558 | |
| 1559 | bmp_info.size=108; |
| 1560 | extra_size=68; |
| 1561 | if ((image->rendering_intent != UndefinedIntent) || |
| 1562 | (profile != (StringInfo *) NULL)) |
| 1563 | { |
| 1564 | bmp_info.size=124; |
| 1565 | extra_size+=16; |
| 1566 | } |
| 1567 | bmp_info.file_size+=extra_size; |
| 1568 | bmp_info.offset_bits+=extra_size; |
| 1569 | } |
| 1570 | bmp_info.width=(long) image->columns; |
| 1571 | bmp_info.height=(long) image->rows; |
| 1572 | bmp_info.planes=1; |
| 1573 | bmp_info.image_size=(unsigned int) (bytes_per_line*image->rows); |
| 1574 | bmp_info.file_size+=bmp_info.image_size; |
| 1575 | bmp_info.x_pixels=75*39; |
| 1576 | bmp_info.y_pixels=75*39; |
| 1577 | switch (image->units) |
| 1578 | { |
| 1579 | case UndefinedResolution: |
| 1580 | case PixelsPerInchResolution: |
| 1581 | { |
| 1582 | bmp_info.x_pixels=(unsigned int) (100.0*image->x_resolution/2.54); |
| 1583 | bmp_info.y_pixels=(unsigned int) (100.0*image->y_resolution/2.54); |
| 1584 | break; |
| 1585 | } |
| 1586 | case PixelsPerCentimeterResolution: |
| 1587 | { |
| 1588 | bmp_info.x_pixels=(unsigned int) (100.0*image->x_resolution); |
| 1589 | bmp_info.y_pixels=(unsigned int) (100.0*image->y_resolution); |
| 1590 | break; |
| 1591 | } |
| 1592 | } |
| 1593 | bmp_info.colors_important=bmp_info.number_colors; |
| 1594 | /* |
| 1595 | Convert MIFF to BMP raster pixels. |
| 1596 | */ |
| 1597 | pixels=(unsigned char *) AcquireQuantumMemory((size_t) bmp_info.image_size, |
| 1598 | sizeof(*pixels)); |
| 1599 | if (pixels == (unsigned char *) NULL) |
| 1600 | ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
| 1601 | (void) ResetMagickMemory(pixels,0,(size_t) bmp_info.image_size); |
| 1602 | switch (bmp_info.bits_per_pixel) |
| 1603 | { |
| 1604 | case 1: |
| 1605 | { |
| 1606 | unsigned long |
| 1607 | bit, |
| 1608 | byte; |
| 1609 | |
| 1610 | /* |
| 1611 | Convert PseudoClass image to a BMP monochrome image. |
| 1612 | */ |
| 1613 | for (y=0; y < (long) image->rows; y++) |
| 1614 | { |
| 1615 | p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); |
| 1616 | if (p == (const PixelPacket *) NULL) |
| 1617 | break; |
| 1618 | indexes=GetVirtualIndexQueue(image); |
| 1619 | q=pixels+(image->rows-y-1)*bytes_per_line; |
| 1620 | bit=0; |
| 1621 | byte=0; |
| 1622 | for (x=0; x < (long) image->columns; x++) |
| 1623 | { |
| 1624 | byte<<=1; |
| 1625 | byte|=indexes[x] != 0 ? 0x01 : 0x00; |
| 1626 | bit++; |
| 1627 | if (bit == 8) |
| 1628 | { |
| 1629 | *q++=(unsigned char) byte; |
| 1630 | bit=0; |
| 1631 | byte=0; |
| 1632 | } |
| 1633 | } |
| 1634 | if (bit != 0) |
| 1635 | { |
| 1636 | *q++=(unsigned char) (byte << (8-bit)); |
| 1637 | x++; |
| 1638 | } |
| 1639 | for (x=(long) (image->columns+7)/8; x < (long) bytes_per_line; x++) |
| 1640 | *q++=0x00; |
| 1641 | if (image->previous == (Image *) NULL) |
| 1642 | { |
| 1643 | status=SetImageProgress(image,SaveImageTag,y,image->rows); |
| 1644 | if (status == MagickFalse) |
| 1645 | break; |
| 1646 | } |
| 1647 | } |
| 1648 | break; |
| 1649 | } |
| 1650 | case 4: |
| 1651 | { |
| 1652 | unsigned long |
| 1653 | nibble, |
| 1654 | byte; |
| 1655 | |
| 1656 | /* |
| 1657 | Convert PseudoClass image to a BMP monochrome image. |
| 1658 | */ |
| 1659 | for (y=0; y < (long) image->rows; y++) |
| 1660 | { |
| 1661 | p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); |
| 1662 | if (p == (const PixelPacket *) NULL) |
| 1663 | break; |
| 1664 | indexes=GetVirtualIndexQueue(image); |
| 1665 | q=pixels+(image->rows-y-1)*bytes_per_line; |
| 1666 | nibble=0; |
| 1667 | byte=0; |
| 1668 | for (x=0; x < (long) image->columns; x++) |
| 1669 | { |
| 1670 | byte<<=4; |
| 1671 | byte|=((unsigned long) indexes[x] & 0x0f); |
| 1672 | nibble++; |
| 1673 | if (nibble == 2) |
| 1674 | { |
| 1675 | *q++=(unsigned char) byte; |
| 1676 | nibble=0; |
| 1677 | byte=0; |
| 1678 | } |
| 1679 | } |
| 1680 | if (nibble != 0) |
| 1681 | { |
| 1682 | *q++=(unsigned char) (byte << 4); |
| 1683 | x++; |
| 1684 | } |
| 1685 | for (x=(long) (image->columns+1)/2; x < (long) bytes_per_line; x++) |
| 1686 | *q++=0x00; |
| 1687 | if (image->previous == (Image *) NULL) |
| 1688 | { |
| 1689 | status=SetImageProgress(image,SaveImageTag,y,image->rows); |
| 1690 | if (status == MagickFalse) |
| 1691 | break; |
| 1692 | } |
| 1693 | } |
| 1694 | break; |
| 1695 | } |
| 1696 | case 8: |
| 1697 | { |
| 1698 | /* |
| 1699 | Convert PseudoClass packet to BMP pixel. |
| 1700 | */ |
| 1701 | for (y=0; y < (long) image->rows; y++) |
| 1702 | { |
| 1703 | p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); |
| 1704 | if (p == (const PixelPacket *) NULL) |
| 1705 | break; |
| 1706 | indexes=GetVirtualIndexQueue(image); |
| 1707 | q=pixels+(image->rows-y-1)*bytes_per_line; |
| 1708 | for (x=0; x < (long) image->columns; x++) |
| 1709 | *q++=(unsigned char) indexes[x]; |
| 1710 | for ( ; x < (long) bytes_per_line; x++) |
| 1711 | *q++=0x00; |
| 1712 | if (image->previous == (Image *) NULL) |
| 1713 | { |
| 1714 | status=SetImageProgress(image,SaveImageTag,y,image->rows); |
| 1715 | if (status == MagickFalse) |
| 1716 | break; |
| 1717 | } |
| 1718 | } |
| 1719 | break; |
| 1720 | } |
| 1721 | case 24: |
| 1722 | { |
| 1723 | /* |
| 1724 | Convert DirectClass packet to BMP BGR888. |
| 1725 | */ |
| 1726 | for (y=0; y < (long) image->rows; y++) |
| 1727 | { |
| 1728 | p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); |
| 1729 | if (p == (const PixelPacket *) NULL) |
| 1730 | break; |
| 1731 | q=pixels+(image->rows-y-1)*bytes_per_line; |
| 1732 | for (x=0; x < (long) image->columns; x++) |
| 1733 | { |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1734 | *q++=ScaleQuantumToChar(GetBluePixelComponent(p)); |
| 1735 | *q++=ScaleQuantumToChar(GetGreenPixelComponent(p)); |
| 1736 | *q++=ScaleQuantumToChar(GetRedPixelComponent(p)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1737 | p++; |
| 1738 | } |
| 1739 | for (x=3L*(long) image->columns; x < (long) bytes_per_line; x++) |
| 1740 | *q++=0x00; |
| 1741 | if (image->previous == (Image *) NULL) |
| 1742 | { |
| 1743 | status=SetImageProgress(image,SaveImageTag,y,image->rows); |
| 1744 | if (status == MagickFalse) |
| 1745 | break; |
| 1746 | } |
| 1747 | } |
| 1748 | break; |
| 1749 | } |
| 1750 | case 32: |
| 1751 | { |
| 1752 | /* |
| 1753 | Convert DirectClass packet to ARGB8888 pixel. |
| 1754 | */ |
| 1755 | for (y=0; y < (long) image->rows; y++) |
| 1756 | { |
| 1757 | p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); |
| 1758 | if (p == (const PixelPacket *) NULL) |
| 1759 | break; |
| 1760 | q=pixels+(image->rows-y-1)*bytes_per_line; |
| 1761 | for (x=0; x < (long) image->columns; x++) |
| 1762 | { |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1763 | *q++=ScaleQuantumToChar(GetBluePixelComponent(p)); |
| 1764 | *q++=ScaleQuantumToChar(GetGreenPixelComponent(p)); |
| 1765 | *q++=ScaleQuantumToChar(GetRedPixelComponent(p)); |
cristy | 228ab74 | 2010-02-24 13:49:34 +0000 | [diff] [blame] | 1766 | *q++=ScaleQuantumToChar(QuantumRange-GetOpacityPixelComponent(p)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1767 | p++; |
| 1768 | } |
| 1769 | if (image->previous == (Image *) NULL) |
| 1770 | { |
| 1771 | status=SetImageProgress(image,SaveImageTag,y,image->rows); |
| 1772 | if (status == MagickFalse) |
| 1773 | break; |
| 1774 | } |
| 1775 | } |
| 1776 | break; |
| 1777 | } |
| 1778 | } |
| 1779 | if ((type > 2) && (bmp_info.bits_per_pixel == 8)) |
| 1780 | if (image_info->compression != NoCompression) |
| 1781 | { |
| 1782 | size_t |
| 1783 | length; |
| 1784 | |
| 1785 | /* |
| 1786 | Convert run-length encoded raster pixels. |
| 1787 | */ |
| 1788 | length=(size_t) (2*(bytes_per_line+2)*(image->rows+2)+2); |
| 1789 | bmp_data=(unsigned char *) NULL; |
| 1790 | if (~length >= bytes_per_line) |
| 1791 | bmp_data=(unsigned char *) AcquireQuantumMemory(length+ |
| 1792 | bytes_per_line,sizeof(*bmp_data)); |
| 1793 | if (bmp_data == (unsigned char *) NULL) |
| 1794 | { |
| 1795 | pixels=(unsigned char *) RelinquishMagickMemory(pixels); |
| 1796 | ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
| 1797 | } |
| 1798 | bmp_info.file_size-=bmp_info.image_size; |
| 1799 | bmp_info.image_size=(unsigned int) EncodeImage(image,bytes_per_line, |
| 1800 | pixels,bmp_data); |
| 1801 | bmp_info.file_size+=bmp_info.image_size; |
| 1802 | pixels=(unsigned char *) RelinquishMagickMemory(pixels); |
| 1803 | pixels=bmp_data; |
| 1804 | bmp_info.compression=BI_RLE8; |
| 1805 | } |
| 1806 | /* |
| 1807 | Write BMP for Windows, all versions, 14-byte header. |
| 1808 | */ |
| 1809 | if (image->debug != MagickFalse) |
| 1810 | { |
| 1811 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 1812 | " Writing BMP version %ld datastream",type); |
| 1813 | if (image->storage_class == DirectClass) |
| 1814 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 1815 | " Storage class=DirectClass"); |
| 1816 | else |
| 1817 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 1818 | " Storage class=PseudoClass"); |
| 1819 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 1820 | " Image depth=%lu",image->depth); |
| 1821 | if (image->matte != MagickFalse) |
| 1822 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 1823 | " Matte=True"); |
| 1824 | else |
| 1825 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 1826 | " Matte=MagickFalse"); |
| 1827 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 1828 | " BMP bits_per_pixel=%d",bmp_info.bits_per_pixel); |
| 1829 | switch ((int) bmp_info.compression) |
| 1830 | { |
| 1831 | case BI_RGB: |
| 1832 | { |
| 1833 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 1834 | " Compression=BI_RGB"); |
| 1835 | break; |
| 1836 | } |
| 1837 | case BI_RLE8: |
| 1838 | { |
| 1839 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 1840 | " Compression=BI_RLE8"); |
| 1841 | break; |
| 1842 | } |
| 1843 | case BI_BITFIELDS: |
| 1844 | { |
| 1845 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 1846 | " Compression=BI_BITFIELDS"); |
| 1847 | break; |
| 1848 | } |
| 1849 | default: |
| 1850 | { |
| 1851 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 1852 | " Compression=UNKNOWN (%u)",bmp_info.compression); |
| 1853 | break; |
| 1854 | } |
| 1855 | } |
| 1856 | if (bmp_info.number_colors == 0) |
| 1857 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 1858 | " Number_colors=unspecified"); |
| 1859 | else |
| 1860 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 1861 | " Number_colors=%u",bmp_info.number_colors); |
| 1862 | } |
| 1863 | (void) WriteBlob(image,2,(unsigned char *) "BM"); |
| 1864 | (void) WriteBlobLSBLong(image,bmp_info.file_size); |
| 1865 | (void) WriteBlobLSBLong(image,bmp_info.ba_offset); /* always 0 */ |
| 1866 | (void) WriteBlobLSBLong(image,bmp_info.offset_bits); |
| 1867 | if (type == 2) |
| 1868 | { |
| 1869 | /* |
| 1870 | Write 12-byte version 2 bitmap header. |
| 1871 | */ |
| 1872 | (void) WriteBlobLSBLong(image,bmp_info.size); |
| 1873 | (void) WriteBlobLSBShort(image,(unsigned short) bmp_info.width); |
| 1874 | (void) WriteBlobLSBShort(image,(unsigned short) bmp_info.height); |
| 1875 | (void) WriteBlobLSBShort(image,bmp_info.planes); |
| 1876 | (void) WriteBlobLSBShort(image,bmp_info.bits_per_pixel); |
| 1877 | } |
| 1878 | else |
| 1879 | { |
| 1880 | /* |
| 1881 | Write 40-byte version 3+ bitmap header. |
| 1882 | */ |
| 1883 | (void) WriteBlobLSBLong(image,bmp_info.size); |
| 1884 | (void) WriteBlobLSBLong(image,(unsigned int) bmp_info.width); |
| 1885 | (void) WriteBlobLSBLong(image,(unsigned int) bmp_info.height); |
| 1886 | (void) WriteBlobLSBShort(image,bmp_info.planes); |
| 1887 | (void) WriteBlobLSBShort(image,bmp_info.bits_per_pixel); |
| 1888 | (void) WriteBlobLSBLong(image,bmp_info.compression); |
| 1889 | (void) WriteBlobLSBLong(image,bmp_info.image_size); |
| 1890 | (void) WriteBlobLSBLong(image,bmp_info.x_pixels); |
| 1891 | (void) WriteBlobLSBLong(image,bmp_info.y_pixels); |
| 1892 | (void) WriteBlobLSBLong(image,bmp_info.number_colors); |
| 1893 | (void) WriteBlobLSBLong(image,bmp_info.colors_important); |
| 1894 | } |
| 1895 | if ((type > 3) && ((image->matte != MagickFalse) || |
| 1896 | (have_color_info != MagickFalse))) |
| 1897 | { |
| 1898 | /* |
| 1899 | Write the rest of the 108-byte BMP Version 4 header. |
| 1900 | */ |
| 1901 | (void) WriteBlobLSBLong(image,0x00ff0000U); /* Red mask */ |
| 1902 | (void) WriteBlobLSBLong(image,0x0000ff00U); /* Green mask */ |
| 1903 | (void) WriteBlobLSBLong(image,0x000000ffU); /* Blue mask */ |
| 1904 | (void) WriteBlobLSBLong(image,0xff000000U); /* Alpha mask */ |
| 1905 | (void) WriteBlobLSBLong(image,0x00000001U); /* CSType==Calib. RGB */ |
| 1906 | (void) WriteBlobLSBLong(image,(unsigned int) |
| 1907 | image->chromaticity.red_primary.x*0x3ffffff); |
| 1908 | (void) WriteBlobLSBLong(image,(unsigned int) |
| 1909 | image->chromaticity.red_primary.y*0x3ffffff); |
| 1910 | (void) WriteBlobLSBLong(image,(unsigned int) |
| 1911 | (1.000f-(image->chromaticity.red_primary.x+ |
| 1912 | image->chromaticity.red_primary.y)*0x3ffffff)); |
| 1913 | (void) WriteBlobLSBLong(image,(unsigned int) |
| 1914 | image->chromaticity.green_primary.x*0x3ffffff); |
| 1915 | (void) WriteBlobLSBLong(image,(unsigned int) |
| 1916 | image->chromaticity.green_primary.y*0x3ffffff); |
| 1917 | (void) WriteBlobLSBLong(image,(unsigned int) |
| 1918 | (1.000f-(image->chromaticity.green_primary.x+ |
| 1919 | image->chromaticity.green_primary.y)*0x3ffffff)); |
| 1920 | (void) WriteBlobLSBLong(image,(unsigned int) |
| 1921 | image->chromaticity.blue_primary.x*0x3ffffff); |
| 1922 | (void) WriteBlobLSBLong(image,(unsigned int) |
| 1923 | image->chromaticity.blue_primary.y*0x3ffffff); |
| 1924 | (void) WriteBlobLSBLong(image,(unsigned int) |
| 1925 | (1.000f-(image->chromaticity.blue_primary.x+ |
| 1926 | image->chromaticity.blue_primary.y)*0x3ffffff)); |
| 1927 | (void) WriteBlobLSBLong(image,(unsigned int) |
| 1928 | bmp_info.gamma_scale.x*0xffff); |
| 1929 | (void) WriteBlobLSBLong(image,(unsigned int) |
| 1930 | bmp_info.gamma_scale.y*0xffff); |
| 1931 | (void) WriteBlobLSBLong(image,(unsigned int) |
| 1932 | bmp_info.gamma_scale.z*0xffff); |
| 1933 | if ((image->rendering_intent != UndefinedIntent) || |
| 1934 | (profile != (StringInfo *) NULL)) |
| 1935 | { |
| 1936 | long |
| 1937 | intent; |
| 1938 | |
| 1939 | switch ((int) image->rendering_intent) |
| 1940 | { |
| 1941 | case SaturationIntent: |
| 1942 | { |
| 1943 | intent=LCS_GM_BUSINESS; |
| 1944 | break; |
| 1945 | } |
| 1946 | case RelativeIntent: |
| 1947 | { |
| 1948 | intent=LCS_GM_GRAPHICS; |
| 1949 | break; |
| 1950 | } |
| 1951 | case PerceptualIntent: |
| 1952 | { |
| 1953 | intent=LCS_GM_IMAGES; |
| 1954 | break; |
| 1955 | } |
| 1956 | case AbsoluteIntent: |
| 1957 | { |
| 1958 | intent=LCS_GM_ABS_COLORIMETRIC; |
| 1959 | break; |
| 1960 | } |
| 1961 | default: |
| 1962 | { |
| 1963 | intent=0; |
| 1964 | break; |
| 1965 | } |
| 1966 | } |
| 1967 | (void) WriteBlobLSBLong(image,(unsigned int) intent); |
| 1968 | (void) WriteBlobLSBLong(image,0x00); /* dummy profile data */ |
| 1969 | (void) WriteBlobLSBLong(image,0x00); /* dummy profile length */ |
| 1970 | (void) WriteBlobLSBLong(image,0x00); /* reserved */ |
| 1971 | } |
| 1972 | } |
| 1973 | if (image->storage_class == PseudoClass) |
| 1974 | { |
| 1975 | unsigned char |
| 1976 | *bmp_colormap; |
| 1977 | |
| 1978 | /* |
| 1979 | Dump colormap to file. |
| 1980 | */ |
| 1981 | if (image->debug != MagickFalse) |
| 1982 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 1983 | " Colormap: %ld entries",image->colors); |
| 1984 | bmp_colormap=(unsigned char *) AcquireQuantumMemory((size_t) (1UL << |
| 1985 | bmp_info.bits_per_pixel),4*sizeof(*bmp_colormap)); |
| 1986 | if (bmp_colormap == (unsigned char *) NULL) |
| 1987 | ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
| 1988 | q=bmp_colormap; |
| 1989 | for (i=0; i < (long) MagickMin((long) image->colors,(long) bmp_info.number_colors); i++) |
| 1990 | { |
| 1991 | *q++=ScaleQuantumToChar(image->colormap[i].blue); |
| 1992 | *q++=ScaleQuantumToChar(image->colormap[i].green); |
| 1993 | *q++=ScaleQuantumToChar(image->colormap[i].red); |
| 1994 | if (type > 2) |
| 1995 | *q++=(unsigned char) 0x0; |
| 1996 | } |
| 1997 | for ( ; i < (long) (1UL << bmp_info.bits_per_pixel); i++) |
| 1998 | { |
| 1999 | *q++=(unsigned char) 0x00; |
| 2000 | *q++=(unsigned char) 0x00; |
| 2001 | *q++=(unsigned char) 0x00; |
| 2002 | if (type > 2) |
| 2003 | *q++=(unsigned char) 0x00; |
| 2004 | } |
| 2005 | if (type <= 2) |
| 2006 | (void) WriteBlob(image,(size_t) (3*(1L << bmp_info.bits_per_pixel)), |
| 2007 | bmp_colormap); |
| 2008 | else |
| 2009 | (void) WriteBlob(image,(size_t) (4*(1L << bmp_info.bits_per_pixel)), |
| 2010 | bmp_colormap); |
| 2011 | bmp_colormap=(unsigned char *) RelinquishMagickMemory(bmp_colormap); |
| 2012 | } |
| 2013 | if (image->debug != MagickFalse) |
| 2014 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| 2015 | " Pixels: %u bytes",bmp_info.image_size); |
| 2016 | (void) WriteBlob(image,(size_t) bmp_info.image_size,pixels); |
| 2017 | pixels=(unsigned char *) RelinquishMagickMemory(pixels); |
| 2018 | if (GetNextImageInList(image) == (Image *) NULL) |
| 2019 | break; |
| 2020 | image=SyncNextImageInList(image); |
| 2021 | status=SetImageProgress(image,SaveImagesTag,scene++, |
| 2022 | GetImageListLength(image)); |
| 2023 | if (status == MagickFalse) |
| 2024 | break; |
| 2025 | } while (image_info->adjoin != MagickFalse); |
| 2026 | (void) CloseBlob(image); |
| 2027 | return(MagickTrue); |
| 2028 | } |