1 /* 2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 3 % % 4 % % 5 % % 6 % AAA AAA IIIII % 7 % A A A A I % 8 % AAAAA AAAAA I % 9 % A A A A I % 10 % A A A A IIIII % 11 % % 12 % % 13 % Read/Write AAI X Image Format % 14 % % 15 % Software Design % 16 % Cristy % 17 % July 1992 % 18 % % 19 % % 20 % Copyright 1999-2016 ImageMagick Studio LLC, a non-profit organization % 21 % dedicated to making software imaging solutions freely available. % 22 % % 23 % You may not use this file except in compliance with the License. You may % 24 % obtain a copy of the License at % 25 % % 26 % http://www.imagemagick.org/script/license.php % 27 % % 28 % Unless required by applicable law or agreed to in writing, software % 29 % distributed under the License is distributed on an "AS IS" BASIS, % 30 % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % 31 % See the License for the specific language governing permissions and % 32 % limitations under the License. % 33 % % 34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 35 % 36 % 37 */ 38 39 /* 41 Include declarations. 42 */ 43 #include "MagickCore/studio.h" 44 #include "MagickCore/blob.h" 45 #include "MagickCore/blob-private.h" 46 #include "MagickCore/cache.h" 47 #include "MagickCore/colorspace.h" 48 #include "MagickCore/colorspace-private.h" 49 #include "MagickCore/exception.h" 50 #include "MagickCore/exception-private.h" 51 #include "MagickCore/image.h" 52 #include "MagickCore/image-private.h" 53 #include "MagickCore/list.h" 54 #include "MagickCore/magick.h" 55 #include "MagickCore/memory_.h" 56 #include "MagickCore/monitor.h" 57 #include "MagickCore/monitor-private.h" 58 #include "MagickCore/pixel.h" 59 #include "MagickCore/pixel-accessor.h" 60 #include "MagickCore/quantum-private.h" 61 #include "MagickCore/static.h" 62 #include "MagickCore/string_.h" 63 #include "MagickCore/module.h" 64 65 /* 67 Forward declarations. 68 */ 69 static MagickBooleanType 70 WriteAAIImage(const ImageInfo *,Image *,ExceptionInfo *); 71 72 /* 74 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 75 % % 76 % % 77 % % 78 % R e a d A A I I m a g e % 79 % % 80 % % 81 % % 82 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 83 % 84 % ReadAAIImage() reads an AAI Dune image file and returns it. It 85 % allocates the memory necessary for the new Image structure and returns a 86 % pointer to the new image. 87 % 88 % The format of the ReadAAIImage method is: 89 % 90 % Image *ReadAAIImage(const ImageInfo *image_info,ExceptionInfo *exception) 91 % 92 % A description of each parameter follows: 93 % 94 % o image_info: the image info. 95 % 96 % o exception: return any errors or warnings in this structure. 97 % 98 */ 99 static Image *ReadAAIImage(const ImageInfo *image_info,ExceptionInfo *exception) 100 { 101 Image 102 *image; 103 104 MagickBooleanType 105 status; 106 107 register ssize_t 108 x; 109 110 register Quantum 111 *q; 112 113 register unsigned char 114 *p; 115 116 size_t 117 height, 118 length, 119 width; 120 121 ssize_t 122 count, 123 y; 124 125 unsigned char 126 *pixels; 127 128 /* 129 Open image file. 130 */ 131 assert(image_info != (const ImageInfo *) NULL); 132 assert(image_info->signature == MagickCoreSignature); 133 if (image_info->debug != MagickFalse) 134 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", 135 image_info->filename); 136 assert(exception != (ExceptionInfo *) NULL); 137 assert(exception->signature == MagickCoreSignature); 138 image=AcquireImage(image_info,exception); 139 status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 140 if (status == MagickFalse) 141 { 142 image=DestroyImageList(image); 143 return((Image *) NULL); 144 } 145 /* 146 Read AAI Dune image. 147 */ 148 width=ReadBlobLSBLong(image); 149 height=ReadBlobLSBLong(image); 150 if (EOFBlob(image) != MagickFalse) 151 ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 152 if ((width == 0UL) || (height == 0UL)) 153 ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 154 do 155 { 156 /* 157 Convert AAI raster image to pixel packets. 158 */ 159 image->columns=width; 160 image->rows=height; 161 image->depth=8; 162 if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0)) 163 if (image->scene >= (image_info->scene+image_info->number_scenes-1)) 164 break; 165 status=SetImageExtent(image,image->columns,image->rows,exception); 166 if (status == MagickFalse) 167 return(DestroyImageList(image)); 168 pixels=(unsigned char *) AcquireQuantumMemory(image->columns, 169 4*sizeof(*pixels)); 170 if (pixels == (unsigned char *) NULL) 171 ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 172 length=(size_t) 4*image->columns; 173 for (y=0; y < (ssize_t) image->rows; y++) 174 { 175 count=ReadBlob(image,length,pixels); 176 if (count != (ssize_t) length) 177 ThrowReaderException(CorruptImageError,"UnableToReadImageData"); 178 p=pixels; 179 q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); 180 if (q == (Quantum *) NULL) 181 break; 182 for (x=0; x < (ssize_t) image->columns; x++) 183 { 184 SetPixelBlue(image,ScaleCharToQuantum(*p++),q); 185 SetPixelGreen(image,ScaleCharToQuantum(*p++),q); 186 SetPixelRed(image,ScaleCharToQuantum(*p++),q); 187 if (*p == 254) 188 *p=255; 189 SetPixelAlpha(image,ScaleCharToQuantum(*p++),q); 190 if (GetPixelAlpha(image,q) != OpaqueAlpha) 191 image->alpha_trait=BlendPixelTrait; 192 q+=GetPixelChannels(image); 193 } 194 if (SyncAuthenticPixels(image,exception) == MagickFalse) 195 break; 196 if (image->previous == (Image *) NULL) 197 { 198 status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y, 199 image->rows); 200 if (status == MagickFalse) 201 break; 202 } 203 } 204 pixels=(unsigned char *) RelinquishMagickMemory(pixels); 205 if (EOFBlob(image) != MagickFalse) 206 { 207 ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile", 208 image->filename); 209 break; 210 } 211 /* 212 Proceed to next image. 213 */ 214 if (image_info->number_scenes != 0) 215 if (image->scene >= (image_info->scene+image_info->number_scenes-1)) 216 break; 217 width=ReadBlobLSBLong(image); 218 height=ReadBlobLSBLong(image); 219 if ((width != 0UL) && (height != 0UL)) 220 { 221 /* 222 Allocate next image structure. 223 */ 224 AcquireNextImage(image_info,image,exception); 225 if (GetNextImageInList(image) == (Image *) NULL) 226 { 227 image=DestroyImageList(image); 228 return((Image *) NULL); 229 } 230 image=SyncNextImageInList(image); 231 status=SetImageProgress(image,LoadImagesTag,TellBlob(image), 232 GetBlobSize(image)); 233 if (status == MagickFalse) 234 break; 235 } 236 } while ((width != 0UL) && (height != 0UL)); 237 (void) CloseBlob(image); 238 return(GetFirstImageInList(image)); 239 } 240 241 /* 243 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 244 % % 245 % % 246 % % 247 % R e g i s t e r A A I I m a g e % 248 % % 249 % % 250 % % 251 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 252 % 253 % RegisterAAIImage() adds attributes for the AAI Dune image format to the list 254 % of supported formats. The attributes include the image format tag, a 255 % method to read and/or write the format, whether the format supports the 256 % saving of more than one frame to the same file or blob, whether the format 257 % supports native in-memory I/O, and a brief description of the format. 258 % 259 % The format of the RegisterAAIImage method is: 260 % 261 % size_t RegisterAAIImage(void) 262 % 263 */ 264 ModuleExport size_t RegisterAAIImage(void) 265 { 266 MagickInfo 267 *entry; 268 269 entry=AcquireMagickInfo("AAI","AAI","AAI Dune image"); 270 entry->decoder=(DecodeImageHandler *) ReadAAIImage; 271 entry->encoder=(EncodeImageHandler *) WriteAAIImage; 272 (void) RegisterMagickInfo(entry); 273 return(MagickImageCoderSignature); 274 } 275 276 /* 278 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 279 % % 280 % % 281 % % 282 % U n r e g i s t e r A A I I m a g e % 283 % % 284 % % 285 % % 286 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 287 % 288 % UnregisterAAIImage() removes format registrations made by the 289 % AAI module from the list of supported formats. 290 % 291 % The format of the UnregisterAAIImage method is: 292 % 293 % UnregisterAAIImage(void) 294 % 295 */ 296 ModuleExport void UnregisterAAIImage(void) 297 { 298 (void) UnregisterMagickInfo("AAI"); 299 } 300 301 /* 303 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 304 % % 305 % % 306 % % 307 % W r i t e A A I I m a g e % 308 % % 309 % % 310 % % 311 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 312 % 313 % WriteAAIImage() writes an image to a file in AAI Dune image format. 314 % 315 % The format of the WriteAAIImage method is: 316 % 317 % MagickBooleanType WriteAAIImage(const ImageInfo *image_info, 318 % Image *image,ExceptionInfo *exception) 319 % 320 % A description of each parameter follows. 321 % 322 % o image_info: the image info. 323 % 324 % o image: The image. 325 % 326 % o exception: return any errors or warnings in this structure. 327 % 328 */ 329 static MagickBooleanType WriteAAIImage(const ImageInfo *image_info,Image *image, 330 ExceptionInfo *exception) 331 { 332 MagickBooleanType 333 status; 334 335 MagickOffsetType 336 scene; 337 338 register const Quantum 339 *magick_restrict p; 340 341 register ssize_t 342 x; 343 344 register unsigned char 345 *magick_restrict q; 346 347 ssize_t 348 count, 349 y; 350 351 unsigned char 352 *pixels; 353 354 /* 355 Open output image file. 356 */ 357 assert(image_info != (const ImageInfo *) NULL); 358 assert(image_info->signature == MagickCoreSignature); 359 assert(image != (Image *) NULL); 360 assert(image->signature == MagickCoreSignature); 361 if (image->debug != MagickFalse) 362 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 363 assert(exception != (ExceptionInfo *) NULL); 364 assert(exception->signature == MagickCoreSignature); 365 status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception); 366 if (status == MagickFalse) 367 return(status); 368 scene=0; 369 do 370 { 371 /* 372 Write AAI header. 373 */ 374 (void) TransformImageColorspace(image,sRGBColorspace,exception); 375 (void) WriteBlobLSBLong(image,(unsigned int) image->columns); 376 (void) WriteBlobLSBLong(image,(unsigned int) image->rows); 377 /* 378 Allocate memory for pixels. 379 */ 380 pixels=(unsigned char *) AcquireQuantumMemory(image->columns, 381 4*sizeof(*pixels)); 382 if (pixels == (unsigned char *) NULL) 383 ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 384 /* 385 Convert MIFF to AAI raster pixels. 386 */ 387 for (y=0; y < (ssize_t) image->rows; y++) 388 { 389 p=GetVirtualPixels(image,0,y,image->columns,1,exception); 390 if (p == (const Quantum *) NULL) 391 break; 392 q=pixels; 393 for (x=0; x < (ssize_t) image->columns; x++) 394 { 395 *q++=ScaleQuantumToChar(GetPixelBlue(image,p)); 396 *q++=ScaleQuantumToChar(GetPixelGreen(image,p)); 397 *q++=ScaleQuantumToChar(GetPixelRed(image,p)); 398 *q=ScaleQuantumToChar((Quantum) (image->alpha_trait != 399 UndefinedPixelTrait ? GetPixelAlpha(image,p) : OpaqueAlpha)); 400 if (*q == 255) 401 *q=254; 402 p+=GetPixelChannels(image); 403 q++; 404 } 405 count=WriteBlob(image,(size_t) (q-pixels),pixels); 406 if (count != (ssize_t) (q-pixels)) 407 break; 408 if (image->previous == (Image *) NULL) 409 { 410 status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, 411 image->rows); 412 if (status == MagickFalse) 413 break; 414 } 415 } 416 pixels=(unsigned char *) RelinquishMagickMemory(pixels); 417 if (GetNextImageInList(image) == (Image *) NULL) 418 break; 419 image=SyncNextImageInList(image); 420 status=SetImageProgress(image,SaveImagesTag,scene++, 421 GetImageListLength(image)); 422 if (status == MagickFalse) 423 break; 424 } while (image_info->adjoin != MagickFalse); 425 (void) CloseBlob(image); 426 return(MagickTrue); 427 } 428
