cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1 | /* |
| 2 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3 | % % |
| 4 | % % |
| 5 | % CCC U U TTTTT % |
| 6 | % C U U T % |
| 7 | % C U U T % |
| 8 | % C U U T % |
| 9 | % CCC UUU T % |
| 10 | % % |
| 11 | % % |
| 12 | % Read DR Halo Image Format % |
| 13 | % % |
| 14 | % Software Design % |
| 15 | % Jaroslav Fojtik % |
| 16 | % June 2000 % |
| 17 | % % |
| 18 | % % |
| 19 | % Permission is hereby granted, free of charge, to any person obtaining a % |
| 20 | % copy of this software and associated documentation files ("ImageMagick"), % |
| 21 | % to deal in ImageMagick without restriction, including without limitation % |
| 22 | % the rights to use, copy, modify, merge, publish, distribute, sublicense, % |
| 23 | % and/or sell copies of ImageMagick, and to permit persons to whom the % |
| 24 | % ImageMagick is furnished to do so, subject to the following conditions: % |
| 25 | % % |
| 26 | % The above copyright notice and this permission notice shall be included in % |
| 27 | % all copies or substantial portions of ImageMagick. % |
| 28 | % % |
| 29 | % The software is provided "as is", without warranty of any kind, express or % |
| 30 | % implied, including but not limited to the warranties of merchantability, % |
| 31 | % fitness for a particular purpose and noninfringement. In no event shall % |
| 32 | % ImageMagick Studio be liable for any claim, damages or other liability, % |
| 33 | % whether in an action of contract, tort or otherwise, arising from, out of % |
| 34 | % or in connection with ImageMagick or the use or other dealings in % |
| 35 | % ImageMagick. % |
| 36 | % % |
| 37 | % Except as contained in this notice, the name of the ImageMagick Studio % |
| 38 | % shall not be used in advertising or otherwise to promote the sale, use or % |
| 39 | % other dealings in ImageMagick without prior written authorization from the % |
| 40 | % ImageMagick Studio. % |
| 41 | % % |
| 42 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 43 | % |
| 44 | % |
| 45 | */ |
| 46 | |
| 47 | /* |
| 48 | Include declarations. |
| 49 | */ |
| 50 | #include "magick/studio.h" |
| 51 | #include "magick/blob.h" |
| 52 | #include "magick/blob-private.h" |
| 53 | #include "magick/cache.h" |
| 54 | #include "magick/color.h" |
cristy | 316d517 | 2009-09-17 19:31:25 +0000 | [diff] [blame^] | 55 | #include "magick/colormap-private.h" |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 56 | #include "magick/color-private.h" |
| 57 | #include "magick/exception.h" |
| 58 | #include "magick/exception-private.h" |
| 59 | #include "magick/image.h" |
| 60 | #include "magick/image-private.h" |
| 61 | #include "magick/list.h" |
| 62 | #include "magick/magick.h" |
| 63 | #include "magick/memory_.h" |
| 64 | #include "magick/quantum-private.h" |
| 65 | #include "magick/static.h" |
| 66 | #include "magick/string_.h" |
| 67 | #include "magick/module.h" |
| 68 | #include "magick/utility.h" |
| 69 | |
| 70 | typedef struct |
| 71 | { |
| 72 | unsigned Width; |
| 73 | unsigned Height; |
| 74 | unsigned Reserved; |
| 75 | } CUTHeader; |
| 76 | |
| 77 | typedef struct |
| 78 | { |
| 79 | char FileId[2]; |
| 80 | unsigned Version; |
| 81 | unsigned Size; |
| 82 | char FileType; |
| 83 | char SubType; |
| 84 | unsigned BoardID; |
| 85 | unsigned GraphicsMode; |
| 86 | unsigned MaxIndex; |
| 87 | unsigned MaxRed; |
| 88 | unsigned MaxGreen; |
| 89 | unsigned MaxBlue; |
| 90 | char PaletteId[20]; |
| 91 | } CUTPalHeader; |
| 92 | |
| 93 | |
| 94 | static void InsertRow(long depth,unsigned char *p,long y,Image *image) |
| 95 | { |
| 96 | ExceptionInfo |
| 97 | *exception; |
| 98 | |
| 99 | unsigned long bit; long x; |
| 100 | register PixelPacket *q; |
| 101 | IndexPacket index; |
| 102 | register IndexPacket *indexes; |
| 103 | |
| 104 | |
| 105 | index=(IndexPacket) 0; |
| 106 | exception=(&image->exception); |
| 107 | switch (depth) |
| 108 | { |
| 109 | case 1: /* Convert bitmap scanline. */ |
| 110 | { |
| 111 | q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| 112 | if (q == (PixelPacket *) NULL) |
| 113 | break; |
| 114 | indexes=GetAuthenticIndexQueue(image); |
| 115 | for (x=0; x < ((long) image->columns-7); x+=8) |
| 116 | { |
| 117 | for (bit=0; bit < 8; bit++) |
| 118 | { |
| 119 | index=(IndexPacket) ((((*p) & (0x80 >> bit)) != 0) ? 0x01 : 0x00); |
| 120 | indexes[x+bit]=index; |
| 121 | *q++=image->colormap[(long) index]; |
| 122 | } |
| 123 | p++; |
| 124 | } |
| 125 | if ((image->columns % 8) != 0) |
| 126 | { |
| 127 | for (bit=0; bit < (image->columns % 8); bit++) |
| 128 | { |
| 129 | index=(IndexPacket) ((((*p) & (0x80 >> bit)) != 0) ? 0x01 : 0x00); |
| 130 | indexes[x+bit]=index; |
| 131 | *q++=image->colormap[(long) index]; |
| 132 | } |
| 133 | p++; |
| 134 | } |
| 135 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 136 | break; |
| 137 | /* if (image->previous == (Image *) NULL) |
| 138 | if (QuantumTick(y,image->rows) != MagickFalse) |
| 139 | ProgressMonitor(LoadImageText,image->rows-y-1,image->rows);*/ |
| 140 | break; |
| 141 | } |
| 142 | case 2: /* Convert PseudoColor scanline. */ |
| 143 | { |
| 144 | q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| 145 | if (q == (PixelPacket *) NULL) |
| 146 | break; |
| 147 | indexes=GetAuthenticIndexQueue(image); |
| 148 | for (x=0; x < ((long) image->columns-1); x+=2) |
| 149 | { |
| 150 | index=ConstrainColormapIndex(image,(*p >> 6) & 0x3); |
| 151 | indexes[x]=index; |
| 152 | *q++=image->colormap[(long) index]; |
| 153 | index=ConstrainColormapIndex(image,(*p >> 4) & 0x3); |
| 154 | indexes[x]=index; |
| 155 | *q++=image->colormap[(long) index]; |
| 156 | index=ConstrainColormapIndex(image,(*p >> 2) & 0x3); |
| 157 | indexes[x]=index; |
| 158 | *q++=image->colormap[(long) index]; |
| 159 | index=ConstrainColormapIndex(image,(*p) & 0x3); |
| 160 | indexes[x+1]=index; |
| 161 | *q++=image->colormap[(long) index]; |
| 162 | p++; |
| 163 | } |
| 164 | if ((image->columns % 4) != 0) |
| 165 | { |
| 166 | index=ConstrainColormapIndex(image,(*p >> 6) & 0x3); |
| 167 | indexes[x]=index; |
| 168 | *q++=image->colormap[(long) index]; |
| 169 | if ((image->columns % 4) >= 1) |
| 170 | |
| 171 | { |
| 172 | index=ConstrainColormapIndex(image,(*p >> 4) & 0x3); |
| 173 | indexes[x]=index; |
| 174 | *q++=image->colormap[(long) index]; |
| 175 | if ((image->columns % 4) >= 2) |
| 176 | |
| 177 | { |
| 178 | index=ConstrainColormapIndex(image,(*p >> 2) & 0x3); |
| 179 | indexes[x]=index; |
| 180 | *q++=image->colormap[(long) index]; |
| 181 | } |
| 182 | } |
| 183 | p++; |
| 184 | } |
| 185 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 186 | break; |
| 187 | /* if (image->previous == (Image *) NULL) |
| 188 | if (QuantumTick(y,image->rows) != MagickFalse) |
| 189 | ProgressMonitor(LoadImageText,image->rows-y-1,image->rows);*/ |
| 190 | break; |
| 191 | } |
| 192 | |
| 193 | case 4: /* Convert PseudoColor scanline. */ |
| 194 | { |
| 195 | q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| 196 | if (q == (PixelPacket *) NULL) |
| 197 | break; |
| 198 | indexes=GetAuthenticIndexQueue(image); |
| 199 | for (x=0; x < ((long) image->columns-1); x+=2) |
| 200 | { |
| 201 | index=ConstrainColormapIndex(image,(*p >> 4) & 0xf); |
| 202 | indexes[x]=index; |
| 203 | *q++=image->colormap[(long) index]; |
| 204 | index=ConstrainColormapIndex(image,(*p) & 0xf); |
| 205 | indexes[x+1]=index; |
| 206 | *q++=image->colormap[(long) index]; |
| 207 | p++; |
| 208 | } |
| 209 | if ((image->columns % 2) != 0) |
| 210 | { |
| 211 | index=ConstrainColormapIndex(image,(*p >> 4) & 0xf); |
| 212 | indexes[x]=index; |
| 213 | *q++=image->colormap[(long) index]; |
| 214 | p++; |
| 215 | } |
| 216 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 217 | break; |
| 218 | /* if (image->previous == (Image *) NULL) |
| 219 | if (QuantumTick(y,image->rows) != MagickFalse) |
| 220 | ProgressMonitor(LoadImageText,image->rows-y-1,image->rows);*/ |
| 221 | break; |
| 222 | } |
| 223 | case 8: /* Convert PseudoColor scanline. */ |
| 224 | { |
| 225 | q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| 226 | if (q == (PixelPacket *) NULL) break; |
| 227 | indexes=GetAuthenticIndexQueue(image); |
| 228 | |
| 229 | for (x=0; x < (long) image->columns; x++) |
| 230 | { |
| 231 | index=ConstrainColormapIndex(image,*p); |
| 232 | indexes[x]=index; |
| 233 | *q++=image->colormap[(long) index]; |
| 234 | p++; |
| 235 | } |
| 236 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 237 | break; |
| 238 | /* if (image->previous == (Image *) NULL) |
| 239 | if (QuantumTick(y,image->rows) != MagickFalse) |
| 240 | ProgressMonitor(LoadImageText,image->rows-y-1,image->rows);*/ |
| 241 | } |
| 242 | break; |
| 243 | |
| 244 | } |
| 245 | } |
| 246 | |
| 247 | /* |
| 248 | Compute the number of colors in Grayed R[i]=G[i]=B[i] image |
| 249 | */ |
| 250 | static int GetCutColors(Image *image) |
| 251 | { |
| 252 | ExceptionInfo |
| 253 | *exception; |
| 254 | |
| 255 | long |
| 256 | x, |
| 257 | y; |
| 258 | |
| 259 | PixelPacket |
| 260 | *q; |
| 261 | |
| 262 | Quantum |
| 263 | intensity, |
| 264 | scale_intensity; |
| 265 | |
| 266 | exception=(&image->exception); |
| 267 | intensity=0; |
| 268 | scale_intensity=ScaleCharToQuantum(16); |
| 269 | for (y=0; y < (long) image->rows; y++) |
| 270 | { |
| 271 | q=GetAuthenticPixels(image,0,y,image->columns,1,exception); |
| 272 | for (x=0; x < (long) image->columns; x++) |
| 273 | { |
| 274 | if (intensity < q->red) |
| 275 | intensity=q->red; |
| 276 | if (intensity >= scale_intensity) |
| 277 | return(255); |
| 278 | q++; |
| 279 | } |
| 280 | } |
| 281 | if (intensity < ScaleCharToQuantum(2)) |
| 282 | return(2); |
| 283 | if (intensity < ScaleCharToQuantum(16)) |
| 284 | return(16); |
| 285 | return((int) intensity); |
| 286 | } |
| 287 | |
| 288 | /* |
| 289 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 290 | % % |
| 291 | % % |
| 292 | % % |
| 293 | % R e a d C U T I m a g e % |
| 294 | % % |
| 295 | % % |
| 296 | % % |
| 297 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 298 | % |
| 299 | % ReadCUTImage() reads an CUT X image file and returns it. It |
| 300 | % allocates the memory necessary for the new Image structure and returns a |
| 301 | % pointer to the new image. |
| 302 | % |
| 303 | % The format of the ReadCUTImage method is: |
| 304 | % |
| 305 | % Image *ReadCUTImage(const ImageInfo *image_info,ExceptionInfo *exception) |
| 306 | % |
| 307 | % A description of each parameter follows: |
| 308 | % |
| 309 | % o image_info: the image info. |
| 310 | % |
| 311 | % o exception: return any errors or warnings in this structure. |
| 312 | % |
| 313 | */ |
| 314 | static Image *ReadCUTImage(const ImageInfo *image_info,ExceptionInfo *exception) |
| 315 | { |
| 316 | Image *image,*palette; |
| 317 | ImageInfo *clone_info; |
| 318 | MagickBooleanType status; |
| 319 | |
| 320 | MagickOffsetType |
| 321 | offset; |
| 322 | |
| 323 | unsigned long EncodedByte; |
| 324 | unsigned char RunCount,RunValue,RunCountMasked; |
| 325 | CUTHeader Header; |
| 326 | CUTPalHeader PalHeader; |
| 327 | long depth; |
| 328 | long i,j; |
| 329 | long ldblk; |
| 330 | unsigned char *BImgBuff=NULL,*ptrB; |
| 331 | PixelPacket *q; |
| 332 | |
| 333 | ssize_t |
| 334 | count; |
| 335 | |
| 336 | /* |
| 337 | Open image file. |
| 338 | */ |
| 339 | assert(image_info != (const ImageInfo *) NULL); |
| 340 | assert(image_info->signature == MagickSignature); |
| 341 | if (image_info->debug != MagickFalse) |
| 342 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", |
| 343 | image_info->filename); |
| 344 | assert(exception != (ExceptionInfo *) NULL); |
| 345 | assert(exception->signature == MagickSignature); |
| 346 | image=AcquireImage(image_info); |
| 347 | status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); |
| 348 | if (status == MagickFalse) |
| 349 | { |
| 350 | image=DestroyImageList(image); |
| 351 | return((Image *) NULL); |
| 352 | } |
| 353 | /* |
| 354 | Read CUT image. |
| 355 | */ |
| 356 | palette=NULL; |
| 357 | clone_info=NULL; |
| 358 | Header.Width=ReadBlobLSBShort(image); |
| 359 | Header.Height=ReadBlobLSBShort(image); |
| 360 | Header.Reserved=ReadBlobLSBShort(image); |
| 361 | |
| 362 | if (Header.Width==0 || Header.Height==0 || Header.Reserved!=0) |
| 363 | CUT_KO: ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| 364 | |
| 365 | /*---This code checks first line of image---*/ |
| 366 | EncodedByte=ReadBlobLSBShort(image); |
| 367 | RunCount=(unsigned char) ReadBlobByte(image); |
| 368 | RunCountMasked=RunCount & 0x7F; |
| 369 | ldblk=0; |
| 370 | while((int) RunCountMasked!=0) /*end of line?*/ |
| 371 | { |
| 372 | i=1; |
| 373 | if((int) RunCount<0x80) i=(long) RunCountMasked; |
| 374 | offset=SeekBlob(image,TellBlob(image)+i,SEEK_SET); |
| 375 | if (offset < 0) |
| 376 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| 377 | if(EOFBlob(image) != MagickFalse) goto CUT_KO; /*wrong data*/ |
| 378 | EncodedByte-=i+1; |
| 379 | ldblk+=(long) RunCountMasked; |
| 380 | |
| 381 | RunCount=(unsigned char) ReadBlobByte(image); |
| 382 | if(EOFBlob(image) != MagickFalse) goto CUT_KO; /*wrong data: unexpected eof in line*/ |
| 383 | RunCountMasked=RunCount & 0x7F; |
| 384 | } |
| 385 | if(EncodedByte!=1) goto CUT_KO; /*wrong data: size incorrect*/ |
| 386 | i=0; /*guess a number of bit planes*/ |
| 387 | if(ldblk==(int) Header.Width) i=8; |
| 388 | if(2*ldblk==(int) Header.Width) i=4; |
| 389 | if(8*ldblk==(int) Header.Width) i=1; |
| 390 | if(i==0) goto CUT_KO; /*wrong data: incorrect bit planes*/ |
| 391 | depth=i; |
| 392 | |
| 393 | image->columns=Header.Width; |
| 394 | image->rows=Header.Height; |
| 395 | image->depth=8; |
| 396 | image->colors=(unsigned long) (GetQuantumRange(1UL*i)+1); |
| 397 | |
| 398 | if (image_info->ping) goto Finish; |
| 399 | |
| 400 | /* ----- Do something with palette ----- */ |
| 401 | if ((clone_info=CloneImageInfo(image_info)) == NULL) goto NoPalette; |
| 402 | |
| 403 | |
| 404 | i=(long) strlen(clone_info->filename); |
| 405 | j=i; |
| 406 | while(--i>0) |
| 407 | { |
| 408 | if(clone_info->filename[i]=='.') |
| 409 | { |
| 410 | break; |
| 411 | } |
| 412 | if(clone_info->filename[i]=='/' || clone_info->filename[i]=='\\' || |
| 413 | clone_info->filename[i]==':' ) |
| 414 | { |
| 415 | i=j; |
| 416 | break; |
| 417 | } |
| 418 | } |
| 419 | |
| 420 | (void) CopyMagickString(clone_info->filename+i,".PAL",(size_t) |
| 421 | (MaxTextExtent-i)); |
| 422 | if((clone_info->file=OpenMagickStream(clone_info->filename,"rb"))==NULL) |
| 423 | { |
| 424 | (void) CopyMagickString(clone_info->filename+i,".pal",(size_t) |
| 425 | (MaxTextExtent-i)); |
| 426 | if((clone_info->file=OpenMagickStream(clone_info->filename,"rb"))==NULL) |
| 427 | { |
| 428 | clone_info->filename[i]='\0'; |
| 429 | if((clone_info->file=OpenMagickStream(clone_info->filename,"rb"))==NULL) |
| 430 | { |
| 431 | clone_info=DestroyImageInfo(clone_info); |
| 432 | clone_info=NULL; |
| 433 | goto NoPalette; |
| 434 | } |
| 435 | } |
| 436 | } |
| 437 | |
| 438 | if( (palette=AcquireImage(clone_info))==NULL ) goto NoPalette; |
| 439 | status=OpenBlob(clone_info,palette,ReadBinaryBlobMode,exception); |
| 440 | if (status == MagickFalse) |
| 441 | { |
| 442 | ErasePalette: |
| 443 | palette=DestroyImage(palette); |
| 444 | palette=NULL; |
| 445 | goto NoPalette; |
| 446 | } |
| 447 | |
| 448 | |
| 449 | if(palette!=NULL) |
| 450 | { |
| 451 | count=ReadBlob(palette,2,(unsigned char *) PalHeader.FileId); |
| 452 | if(strncmp(PalHeader.FileId,"AH",2) != 0) goto ErasePalette; |
| 453 | PalHeader.Version=ReadBlobLSBShort(palette); |
| 454 | PalHeader.Size=ReadBlobLSBShort(palette); |
| 455 | PalHeader.FileType=(char) ReadBlobByte(palette); |
| 456 | PalHeader.SubType=(char) ReadBlobByte(palette); |
| 457 | PalHeader.BoardID=ReadBlobLSBShort(palette); |
| 458 | PalHeader.GraphicsMode=ReadBlobLSBShort(palette); |
| 459 | PalHeader.MaxIndex=ReadBlobLSBShort(palette); |
| 460 | PalHeader.MaxRed=ReadBlobLSBShort(palette); |
| 461 | PalHeader.MaxGreen=ReadBlobLSBShort(palette); |
| 462 | PalHeader.MaxBlue=ReadBlobLSBShort(palette); |
| 463 | count=ReadBlob(palette,20,(unsigned char *) PalHeader.PaletteId); |
| 464 | |
| 465 | if(PalHeader.MaxIndex<1) goto ErasePalette; |
| 466 | image->colors=PalHeader.MaxIndex+1; |
| 467 | if (AcquireImageColormap(image,image->colors) == MagickFalse) goto NoMemory; |
| 468 | |
| 469 | if(PalHeader.MaxRed==0) PalHeader.MaxRed=(unsigned int) QuantumRange; /*avoid division by 0*/ |
| 470 | if(PalHeader.MaxGreen==0) PalHeader.MaxGreen=(unsigned int) QuantumRange; |
| 471 | if(PalHeader.MaxBlue==0) PalHeader.MaxBlue=(unsigned int) QuantumRange; |
| 472 | |
| 473 | for(i=0;i<=(int) PalHeader.MaxIndex;i++) |
| 474 | { /*this may be wrong- I don't know why is palette such strange*/ |
| 475 | j=(long) TellBlob(palette); |
| 476 | if((j % 512)>512-6) |
| 477 | { |
| 478 | j=((j / 512)+1)*512; |
| 479 | offset=SeekBlob(palette,j,SEEK_SET); |
| 480 | if (offset < 0) |
| 481 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| 482 | } |
| 483 | image->colormap[i].red=(Quantum) ReadBlobLSBShort(palette); |
cristy | 4f3c0be | 2009-09-12 16:04:05 +0000 | [diff] [blame] | 484 | if (QuantumRange != (Quantum) PalHeader.MaxRed) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 485 | { |
| 486 | image->colormap[i].red=RoundToQuantum(((double) |
| 487 | image->colormap[i].red*QuantumRange+(PalHeader.MaxRed>>1))/ |
| 488 | PalHeader.MaxRed); |
| 489 | } |
| 490 | image->colormap[i].green=(Quantum) ReadBlobLSBShort(palette); |
cristy | 4f3c0be | 2009-09-12 16:04:05 +0000 | [diff] [blame] | 491 | if (QuantumRange != (Quantum) PalHeader.MaxGreen) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 492 | { |
| 493 | image->colormap[i].green=RoundToQuantum |
| 494 | (((double) image->colormap[i].green*QuantumRange+(PalHeader.MaxGreen>>1))/PalHeader.MaxGreen); |
| 495 | } |
| 496 | image->colormap[i].blue=(Quantum) ReadBlobLSBShort(palette); |
cristy | 4f3c0be | 2009-09-12 16:04:05 +0000 | [diff] [blame] | 497 | if (QuantumRange != (Quantum) PalHeader.MaxBlue) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 498 | { |
| 499 | image->colormap[i].blue=RoundToQuantum |
| 500 | (((double)image->colormap[i].blue*QuantumRange+(PalHeader.MaxBlue>>1))/PalHeader.MaxBlue); |
| 501 | } |
| 502 | |
| 503 | } |
| 504 | } |
| 505 | |
| 506 | |
| 507 | |
| 508 | NoPalette: |
| 509 | if(palette==NULL) |
| 510 | { |
| 511 | |
| 512 | image->colors=256; |
| 513 | if (AcquireImageColormap(image,image->colors) == MagickFalse) |
| 514 | { |
| 515 | NoMemory: |
| 516 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
| 517 | } |
| 518 | |
| 519 | for (i=0; i < (long)image->colors; i++) |
| 520 | { |
| 521 | image->colormap[i].red=ScaleCharToQuantum((unsigned char) i); |
| 522 | image->colormap[i].green=ScaleCharToQuantum((unsigned char) i); |
| 523 | image->colormap[i].blue=ScaleCharToQuantum((unsigned char) i); |
| 524 | } |
| 525 | } |
| 526 | |
| 527 | |
| 528 | /* ----- Load RLE compressed raster ----- */ |
| 529 | BImgBuff=(unsigned char *) AcquireQuantumMemory((size_t) ldblk, |
| 530 | sizeof(*BImgBuff)); /*Ldblk was set in the check phase*/ |
| 531 | if(BImgBuff==NULL) goto NoMemory; |
| 532 | |
| 533 | offset=SeekBlob(image,6 /*sizeof(Header)*/,SEEK_SET); |
| 534 | if (offset < 0) |
| 535 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| 536 | for (i=0; i < (int) Header.Height; i++) |
| 537 | { |
| 538 | EncodedByte=ReadBlobLSBShort(image); |
| 539 | |
| 540 | ptrB=BImgBuff; |
| 541 | j=ldblk; |
| 542 | |
| 543 | RunCount=(unsigned char) ReadBlobByte(image); |
| 544 | RunCountMasked=RunCount & 0x7F; |
| 545 | |
| 546 | while((int) RunCountMasked!=0) |
| 547 | { |
| 548 | if((long) RunCountMasked>j) |
| 549 | { /*Wrong Data*/ |
| 550 | RunCountMasked=(unsigned char) j; |
| 551 | if(j==0) |
| 552 | { |
| 553 | break; |
| 554 | } |
| 555 | } |
| 556 | |
| 557 | if((int) RunCount>0x80) |
| 558 | { |
| 559 | RunValue=(unsigned char) ReadBlobByte(image); |
| 560 | (void) ResetMagickMemory(ptrB,(int) RunValue,(size_t) RunCountMasked); |
| 561 | } |
| 562 | else { |
| 563 | count=ReadBlob(image,(size_t) RunCountMasked,ptrB); |
| 564 | } |
| 565 | |
| 566 | ptrB+=(int) RunCountMasked; |
| 567 | j-=(int) RunCountMasked; |
| 568 | |
| 569 | if (EOFBlob(image) != MagickFalse) goto Finish; /* wrong data: unexpected eof in line */ |
| 570 | RunCount=(unsigned char) ReadBlobByte(image); |
| 571 | RunCountMasked=RunCount & 0x7F; |
| 572 | } |
| 573 | |
| 574 | InsertRow(depth,BImgBuff,i,image); |
| 575 | } |
| 576 | |
| 577 | |
| 578 | /*detect monochrome image*/ |
| 579 | |
| 580 | if(palette==NULL) |
| 581 | { /*attempt to detect binary (black&white) images*/ |
| 582 | if ((image->storage_class == PseudoClass) && |
| 583 | (IsGrayImage(image,&image->exception) != MagickFalse)) |
| 584 | { |
| 585 | if(GetCutColors(image)==2) |
| 586 | { |
| 587 | for (i=0; i < (long)image->colors; i++) |
| 588 | { |
| 589 | register Quantum |
| 590 | sample; |
| 591 | sample=ScaleCharToQuantum((unsigned char) i); |
| 592 | if(image->colormap[i].red!=sample) goto Finish; |
| 593 | if(image->colormap[i].green!=sample) goto Finish; |
| 594 | if(image->colormap[i].blue!=sample) goto Finish; |
| 595 | } |
| 596 | |
| 597 | image->colormap[1].red=image->colormap[1].green=image->colormap[1].blue=(Quantum) QuantumRange; |
| 598 | for (i=0; i < (long)image->rows; i++) |
| 599 | { |
| 600 | q=QueueAuthenticPixels(image,0,i,image->columns,1,exception); |
| 601 | for (j=0; j < (long)image->columns; j++) |
| 602 | { |
| 603 | if(q->red==ScaleCharToQuantum(1)) |
| 604 | { |
| 605 | q->red=q->green=q->blue=(Quantum) QuantumRange; |
| 606 | } |
| 607 | q++; |
| 608 | } |
| 609 | if (SyncAuthenticPixels(image,exception) == MagickFalse) goto Finish; |
| 610 | } |
| 611 | } |
| 612 | } |
| 613 | } |
| 614 | |
| 615 | Finish: |
| 616 | if (BImgBuff != NULL) |
| 617 | BImgBuff=(unsigned char *) RelinquishMagickMemory(BImgBuff); |
| 618 | if (palette != NULL) |
| 619 | palette=DestroyImage(palette); |
| 620 | if (clone_info != NULL) |
| 621 | clone_info=DestroyImageInfo(clone_info); |
| 622 | if (EOFBlob(image) != MagickFalse) |
| 623 | ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile", |
| 624 | image->filename); |
| 625 | (void) CloseBlob(image); |
| 626 | return(GetFirstImageInList(image)); |
| 627 | } |
| 628 | |
| 629 | /* |
| 630 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 631 | % % |
| 632 | % % |
| 633 | % % |
| 634 | % R e g i s t e r C U T I m a g e % |
| 635 | % % |
| 636 | % % |
| 637 | % % |
| 638 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 639 | % |
| 640 | % RegisterCUTImage() adds attributes for the CUT image format to |
| 641 | % the list of supported formats. The attributes include the image format |
| 642 | % tag, a method to read and/or write the format, whether the format |
| 643 | % supports the saving of more than one frame to the same file or blob, |
| 644 | % whether the format supports native in-memory I/O, and a brief |
| 645 | % description of the format. |
| 646 | % |
| 647 | % The format of the RegisterCUTImage method is: |
| 648 | % |
| 649 | % unsigned long RegisterCUTImage(void) |
| 650 | % |
| 651 | */ |
| 652 | ModuleExport unsigned long RegisterCUTImage(void) |
| 653 | { |
| 654 | MagickInfo |
| 655 | *entry; |
| 656 | |
| 657 | entry=SetMagickInfo("CUT"); |
| 658 | entry->decoder=(DecodeImageHandler *) ReadCUTImage; |
| 659 | entry->seekable_stream=MagickTrue; |
| 660 | entry->description=ConstantString("DR Halo"); |
| 661 | entry->module=ConstantString("CUT"); |
| 662 | (void) RegisterMagickInfo(entry); |
| 663 | return(MagickImageCoderSignature); |
| 664 | } |
| 665 | |
| 666 | /* |
| 667 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 668 | % % |
| 669 | % % |
| 670 | % % |
| 671 | % U n r e g i s t e r C U T I m a g e % |
| 672 | % % |
| 673 | % % |
| 674 | % % |
| 675 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 676 | % |
| 677 | % UnregisterCUTImage() removes format registrations made by the |
| 678 | % CUT module from the list of supported formats. |
| 679 | % |
| 680 | % The format of the UnregisterCUTImage method is: |
| 681 | % |
| 682 | % UnregisterCUTImage(void) |
| 683 | % |
| 684 | */ |
| 685 | ModuleExport void UnregisterCUTImage(void) |
| 686 | { |
| 687 | (void) UnregisterMagickInfo("CUT"); |
| 688 | } |