cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1 | /* |
| 2 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3 | % % |
| 4 | % % |
| 5 | % % |
| 6 | % TTTTT RRRR AAA N N SSSSS FFFFF OOO RRRR M M % |
| 7 | % T R R A A NN N SS F O O R R MM MM % |
| 8 | % T RRRR AAAAA N N N SSS FFF O O RRRR M M M % |
| 9 | % T R R A A N NN SS F O O R R M M % |
| 10 | % T R R A A N N SSSSS F OOO R R M M % |
| 11 | % % |
| 12 | % % |
| 13 | % MagickCore Image Transform Methods % |
| 14 | % % |
| 15 | % Software Design % |
| 16 | % John Cristy % |
| 17 | % July 1992 % |
| 18 | % % |
| 19 | % % |
cristy | 16af1cb | 2009-12-11 21:38:29 +0000 | [diff] [blame] | 20 | % Copyright 1999-2010 ImageMagick Studio LLC, a non-profit organization % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 21 | % dedicated to making software imaging solutions freely available. % |
| 22 | % % |
| 23 | % You may not use this file except in compliance with the License. You may % |
| 24 | % obtain a copy of the License at % |
| 25 | % % |
| 26 | % http://www.imagemagick.org/script/license.php % |
| 27 | % % |
| 28 | % Unless required by applicable law or agreed to in writing, software % |
| 29 | % distributed under the License is distributed on an "AS IS" BASIS, % |
| 30 | % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % |
| 31 | % See the License for the specific language governing permissions and % |
| 32 | % limitations under the License. % |
| 33 | % % |
| 34 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 35 | % |
| 36 | % |
| 37 | */ |
| 38 | |
| 39 | /* |
| 40 | Include declarations. |
| 41 | */ |
| 42 | #include "magick/studio.h" |
cristy | 5a2ca48 | 2009-10-14 18:24:56 +0000 | [diff] [blame] | 43 | #include "magick/attribute.h" |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 44 | #include "magick/cache.h" |
| 45 | #include "magick/cache-view.h" |
| 46 | #include "magick/color.h" |
| 47 | #include "magick/color-private.h" |
| 48 | #include "magick/colorspace-private.h" |
| 49 | #include "magick/composite.h" |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 50 | #include "magick/draw.h" |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 51 | #include "magick/effect.h" |
| 52 | #include "magick/exception.h" |
| 53 | #include "magick/exception-private.h" |
| 54 | #include "magick/geometry.h" |
| 55 | #include "magick/image.h" |
| 56 | #include "magick/memory_.h" |
| 57 | #include "magick/layer.h" |
| 58 | #include "magick/list.h" |
| 59 | #include "magick/monitor.h" |
| 60 | #include "magick/monitor-private.h" |
| 61 | #include "magick/pixel-private.h" |
| 62 | #include "magick/resource_.h" |
| 63 | #include "magick/resize.h" |
| 64 | #include "magick/statistic.h" |
| 65 | #include "magick/string_.h" |
| 66 | #include "magick/transform.h" |
| 67 | |
| 68 | /* |
| 69 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 70 | % % |
| 71 | % % |
| 72 | % % |
| 73 | % C h o p I m a g e % |
| 74 | % % |
| 75 | % % |
| 76 | % % |
| 77 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 78 | % |
| 79 | % Chop() removes a region of an image and collapses the image to occupy the |
| 80 | % removed portion. |
| 81 | % |
| 82 | % The format of the ChopImage method is: |
| 83 | % |
| 84 | % Image *ChopImage(const Image *image,const RectangleInfo *chop_info) |
| 85 | % ExceptionInfo *exception) |
| 86 | % |
| 87 | % A description of each parameter follows: |
| 88 | % |
| 89 | % o image: the image. |
| 90 | % |
| 91 | % o chop_info: Define the region of the image to chop. |
| 92 | % |
| 93 | % o exception: return any errors or warnings in this structure. |
| 94 | % |
| 95 | */ |
| 96 | MagickExport Image *ChopImage(const Image *image,const RectangleInfo *chop_info, |
| 97 | ExceptionInfo *exception) |
| 98 | { |
| 99 | #define ChopImageTag "Chop/Image" |
| 100 | |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 101 | CacheView |
| 102 | *chop_view, |
| 103 | *image_view; |
| 104 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 105 | Image |
| 106 | *chop_image; |
| 107 | |
| 108 | long |
| 109 | j, |
| 110 | y; |
| 111 | |
| 112 | MagickBooleanType |
| 113 | proceed; |
| 114 | |
| 115 | RectangleInfo |
| 116 | extent; |
| 117 | |
| 118 | register long |
| 119 | i; |
| 120 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 121 | /* |
| 122 | Check chop geometry. |
| 123 | */ |
| 124 | assert(image != (const Image *) NULL); |
| 125 | assert(image->signature == MagickSignature); |
| 126 | if (image->debug != MagickFalse) |
| 127 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 128 | assert(exception != (ExceptionInfo *) NULL); |
| 129 | assert(exception->signature == MagickSignature); |
| 130 | assert(chop_info != (RectangleInfo *) NULL); |
| 131 | if (((chop_info->x+(long) chop_info->width) < 0) || |
| 132 | ((chop_info->y+(long) chop_info->height) < 0) || |
| 133 | (chop_info->x > (long) image->columns) || |
| 134 | (chop_info->y > (long) image->rows)) |
| 135 | ThrowImageException(OptionWarning,"GeometryDoesNotContainImage"); |
| 136 | extent=(*chop_info); |
| 137 | if ((extent.x+(long) extent.width) > (long) image->columns) |
| 138 | extent.width=(unsigned long) ((long) image->columns-extent.x); |
| 139 | if ((extent.y+(long) extent.height) > (long) image->rows) |
| 140 | extent.height=(unsigned long) ((long) image->rows-extent.y); |
| 141 | if (extent.x < 0) |
| 142 | { |
| 143 | extent.width-=(unsigned long) (-extent.x); |
| 144 | extent.x=0; |
| 145 | } |
| 146 | if (extent.y < 0) |
| 147 | { |
| 148 | extent.height-=(unsigned long) (-extent.y); |
| 149 | extent.y=0; |
| 150 | } |
| 151 | chop_image=CloneImage(image,image->columns-extent.width,image->rows- |
| 152 | extent.height,MagickTrue,exception); |
| 153 | if (chop_image == (Image *) NULL) |
| 154 | return((Image *) NULL); |
| 155 | /* |
| 156 | Extract chop image. |
| 157 | */ |
| 158 | i=0; |
| 159 | j=0; |
| 160 | image_view=AcquireCacheView(image); |
| 161 | chop_view=AcquireCacheView(chop_image); |
| 162 | for (y=0; y < (long) extent.y; y++) |
| 163 | { |
| 164 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 165 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 166 | |
| 167 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 168 | *restrict chop_indexes, |
| 169 | *restrict indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 170 | |
| 171 | register long |
| 172 | x; |
| 173 | |
| 174 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 175 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 176 | |
| 177 | p=GetCacheViewVirtualPixels(image_view,0,i++,image->columns,1,exception); |
| 178 | q=QueueCacheViewAuthenticPixels(chop_view,0,j++,chop_image->columns,1, |
| 179 | exception); |
| 180 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 181 | break; |
| 182 | indexes=GetCacheViewAuthenticIndexQueue(image_view); |
| 183 | chop_indexes=GetCacheViewAuthenticIndexQueue(chop_view); |
| 184 | for (x=0; x < (long) image->columns; x++) |
| 185 | { |
| 186 | if ((x < extent.x) || (x >= (long) (extent.x+extent.width))) |
| 187 | { |
| 188 | *q=(*p); |
| 189 | if (indexes != (IndexPacket *) NULL) |
| 190 | { |
| 191 | if (chop_indexes != (IndexPacket *) NULL) |
| 192 | *chop_indexes++=indexes[x]; |
| 193 | } |
| 194 | q++; |
| 195 | } |
| 196 | p++; |
| 197 | } |
| 198 | if (SyncCacheViewAuthenticPixels(chop_view,exception) == MagickFalse) |
| 199 | break; |
| 200 | proceed=SetImageProgress(image,ChopImageTag,y,chop_image->rows); |
| 201 | if (proceed == MagickFalse) |
| 202 | break; |
| 203 | } |
| 204 | /* |
| 205 | Extract chop image. |
| 206 | */ |
| 207 | i+=extent.height; |
| 208 | for (y=0; y < (long) (image->rows-(extent.y+extent.height)); y++) |
| 209 | { |
| 210 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 211 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 212 | |
| 213 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 214 | *restrict chop_indexes, |
| 215 | *restrict indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 216 | |
| 217 | register long |
| 218 | x; |
| 219 | |
| 220 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 221 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 222 | |
| 223 | p=GetCacheViewVirtualPixels(image_view,0,i++,image->columns,1,exception); |
| 224 | q=QueueCacheViewAuthenticPixels(chop_view,0,j++,chop_image->columns,1, |
| 225 | exception); |
| 226 | if ((p == (PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 227 | break; |
| 228 | indexes=GetCacheViewAuthenticIndexQueue(image_view); |
| 229 | chop_indexes=GetCacheViewAuthenticIndexQueue(chop_view); |
| 230 | for (x=0; x < (long) image->columns; x++) |
| 231 | { |
| 232 | if ((x < extent.x) || (x >= (long) (extent.x+extent.width))) |
| 233 | { |
| 234 | *q=(*p); |
| 235 | if (indexes != (IndexPacket *) NULL) |
| 236 | { |
| 237 | if (chop_indexes != (IndexPacket *) NULL) |
| 238 | *chop_indexes++=indexes[x]; |
| 239 | } |
| 240 | q++; |
| 241 | } |
| 242 | p++; |
| 243 | } |
| 244 | if (SyncCacheViewAuthenticPixels(chop_view,exception) == MagickFalse) |
| 245 | break; |
| 246 | proceed=SetImageProgress(image,ChopImageTag,y,chop_image->rows); |
| 247 | if (proceed == MagickFalse) |
| 248 | break; |
| 249 | } |
| 250 | chop_view=DestroyCacheView(chop_view); |
| 251 | image_view=DestroyCacheView(image_view); |
| 252 | chop_image->type=image->type; |
| 253 | return(chop_image); |
| 254 | } |
| 255 | |
| 256 | /* |
| 257 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 258 | % % |
| 259 | % % |
| 260 | % % |
| 261 | + C o n s o l i d a t e C M Y K I m a g e % |
| 262 | % % |
| 263 | % % |
| 264 | % % |
| 265 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 266 | % |
| 267 | % ConsolidateCMYKImage() consolidates separate C, M, Y, and K planes into a |
| 268 | % single image. |
| 269 | % |
| 270 | % The format of the ConsolidateCMYKImage method is: |
| 271 | % |
| 272 | % Image *ConsolidateCMYKImage(const Image *image,ExceptionInfo *exception) |
| 273 | % |
| 274 | % A description of each parameter follows: |
| 275 | % |
| 276 | % o image: the image sequence. |
| 277 | % |
| 278 | % o exception: return any errors or warnings in this structure. |
| 279 | % |
| 280 | */ |
| 281 | MagickExport Image *ConsolidateCMYKImages(const Image *images, |
| 282 | ExceptionInfo *exception) |
| 283 | { |
| 284 | Image |
| 285 | *cmyk_image, |
| 286 | *cmyk_images; |
| 287 | |
| 288 | long |
| 289 | y; |
| 290 | |
| 291 | register long |
| 292 | i; |
| 293 | |
| 294 | /* |
| 295 | Consolidate separate C, M, Y, and K planes into a single image. |
| 296 | */ |
| 297 | assert(images != (Image *) NULL); |
| 298 | assert(images->signature == MagickSignature); |
| 299 | if (images->debug != MagickFalse) |
| 300 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",images->filename); |
| 301 | assert(exception != (ExceptionInfo *) NULL); |
| 302 | assert(exception->signature == MagickSignature); |
| 303 | cmyk_images=NewImageList(); |
| 304 | for (i=0; i < (long) GetImageListLength(images); i+=4) |
| 305 | { |
| 306 | cmyk_image=CloneImage(images,images->columns,images->rows,MagickTrue, |
| 307 | exception); |
| 308 | if (cmyk_image == (Image *) NULL) |
| 309 | break; |
| 310 | if (SetImageStorageClass(cmyk_image,DirectClass) == MagickFalse) |
| 311 | break; |
| 312 | (void) SetImageColorspace(cmyk_image,CMYKColorspace); |
| 313 | for (y=0; y < (long) images->rows; y++) |
| 314 | { |
| 315 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 316 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 317 | |
| 318 | register long |
| 319 | x; |
| 320 | |
| 321 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 322 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 323 | |
| 324 | p=GetVirtualPixels(images,0,y,images->columns,1,exception); |
| 325 | q=QueueAuthenticPixels(cmyk_image,0,y,cmyk_image->columns,1,exception); |
| 326 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 327 | break; |
| 328 | for (x=0; x < (long) images->columns; x++) |
| 329 | { |
| 330 | q->red=(Quantum) (QuantumRange-PixelIntensityToQuantum(p)); |
| 331 | p++; |
| 332 | q++; |
| 333 | } |
| 334 | if (SyncAuthenticPixels(cmyk_image,exception) == MagickFalse) |
| 335 | break; |
| 336 | } |
| 337 | images=GetNextImageInList(images); |
| 338 | if (images == (Image *) NULL) |
| 339 | break; |
| 340 | for (y=0; y < (long) images->rows; y++) |
| 341 | { |
| 342 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 343 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 344 | |
| 345 | register long |
| 346 | x; |
| 347 | |
| 348 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 349 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 350 | |
| 351 | p=GetVirtualPixels(images,0,y,images->columns,1,exception); |
| 352 | q=GetAuthenticPixels(cmyk_image,0,y,cmyk_image->columns,1,exception); |
| 353 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 354 | break; |
| 355 | for (x=0; x < (long) images->columns; x++) |
| 356 | { |
| 357 | q->green=(Quantum) (QuantumRange-PixelIntensityToQuantum(p)); |
| 358 | p++; |
| 359 | q++; |
| 360 | } |
| 361 | if (SyncAuthenticPixels(cmyk_image,exception) == MagickFalse) |
| 362 | break; |
| 363 | } |
| 364 | images=GetNextImageInList(images); |
| 365 | if (images == (Image *) NULL) |
| 366 | break; |
| 367 | for (y=0; y < (long) images->rows; y++) |
| 368 | { |
| 369 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 370 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 371 | |
| 372 | register long |
| 373 | x; |
| 374 | |
| 375 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 376 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 377 | |
| 378 | p=GetVirtualPixels(images,0,y,images->columns,1,exception); |
| 379 | q=GetAuthenticPixels(cmyk_image,0,y,cmyk_image->columns,1,exception); |
| 380 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 381 | break; |
| 382 | for (x=0; x < (long) images->columns; x++) |
| 383 | { |
| 384 | q->blue=(Quantum) (QuantumRange-PixelIntensityToQuantum(p)); |
| 385 | p++; |
| 386 | q++; |
| 387 | } |
| 388 | if (SyncAuthenticPixels(cmyk_image,exception) == MagickFalse) |
| 389 | break; |
| 390 | } |
| 391 | images=GetNextImageInList(images); |
| 392 | if (images == (Image *) NULL) |
| 393 | break; |
| 394 | for (y=0; y < (long) images->rows; y++) |
| 395 | { |
| 396 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 397 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 398 | |
| 399 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 400 | *restrict indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 401 | |
| 402 | register long |
| 403 | x; |
| 404 | |
| 405 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 406 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 407 | |
| 408 | p=GetVirtualPixels(images,0,y,images->columns,1,exception); |
| 409 | q=GetAuthenticPixels(cmyk_image,0,y,cmyk_image->columns,1,exception); |
| 410 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 411 | break; |
| 412 | indexes=GetAuthenticIndexQueue(cmyk_image); |
| 413 | for (x=0; x < (long) images->columns; x++) |
| 414 | { |
| 415 | indexes[x]=(IndexPacket) (QuantumRange-PixelIntensityToQuantum(p)); |
| 416 | p++; |
| 417 | } |
| 418 | if (SyncAuthenticPixels(cmyk_image,exception) == MagickFalse) |
| 419 | break; |
| 420 | } |
| 421 | AppendImageToList(&cmyk_images,cmyk_image); |
| 422 | images=GetNextImageInList(images); |
| 423 | if (images == (Image *) NULL) |
| 424 | break; |
| 425 | } |
| 426 | return(cmyk_images); |
| 427 | } |
| 428 | |
| 429 | /* |
| 430 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 431 | % % |
| 432 | % % |
| 433 | % % |
| 434 | % C r o p I m a g e % |
| 435 | % % |
| 436 | % % |
| 437 | % % |
| 438 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 439 | % |
| 440 | % CropImage() extracts a region of the image starting at the offset defined |
| 441 | % by geometry. |
| 442 | % |
| 443 | % The format of the CropImage method is: |
| 444 | % |
| 445 | % Image *CropImage(const Image *image,const RectangleInfo *geometry, |
| 446 | % ExceptionInfo *exception) |
| 447 | % |
| 448 | % A description of each parameter follows: |
| 449 | % |
| 450 | % o image: the image. |
| 451 | % |
| 452 | % o geometry: Define the region of the image to crop with members |
| 453 | % x, y, width, and height. |
| 454 | % |
| 455 | % o exception: return any errors or warnings in this structure. |
| 456 | % |
| 457 | */ |
| 458 | MagickExport Image *CropImage(const Image *image,const RectangleInfo *geometry, |
| 459 | ExceptionInfo *exception) |
| 460 | { |
| 461 | #define CropImageTag "Crop/Image" |
| 462 | |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 463 | CacheView |
| 464 | *crop_view, |
| 465 | *image_view; |
| 466 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 467 | Image |
| 468 | *crop_image; |
| 469 | |
| 470 | long |
| 471 | progress, |
| 472 | y; |
| 473 | |
| 474 | MagickBooleanType |
| 475 | status; |
| 476 | |
| 477 | RectangleInfo |
| 478 | bounding_box, |
| 479 | page; |
| 480 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 481 | /* |
| 482 | Check crop geometry. |
| 483 | */ |
| 484 | assert(image != (const Image *) NULL); |
| 485 | assert(image->signature == MagickSignature); |
| 486 | if (image->debug != MagickFalse) |
| 487 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 488 | assert(geometry != (const RectangleInfo *) NULL); |
| 489 | assert(exception != (ExceptionInfo *) NULL); |
| 490 | assert(exception->signature == MagickSignature); |
| 491 | bounding_box=image->page; |
| 492 | if ((bounding_box.width == 0) || (bounding_box.height == 0)) |
| 493 | { |
| 494 | bounding_box.width=image->columns; |
| 495 | bounding_box.height=image->rows; |
| 496 | } |
| 497 | page=(*geometry); |
| 498 | if (page.width == 0) |
| 499 | page.width=bounding_box.width; |
| 500 | if (page.height == 0) |
| 501 | page.height=bounding_box.height; |
| 502 | if (((bounding_box.x-page.x) >= (long) page.width) || |
| 503 | ((bounding_box.y-page.y) >= (long) page.height) || |
| 504 | ((page.x-bounding_box.x) > (long) image->columns) || |
| 505 | ((page.y-bounding_box.y) > (long) image->rows)) |
| 506 | { |
| 507 | /* |
| 508 | Crop is not within virtual canvas, return 1 pixel transparent image. |
| 509 | */ |
| 510 | (void) ThrowMagickException(exception,GetMagickModule(),OptionWarning, |
| 511 | "GeometryDoesNotContainImage","`%s'",image->filename); |
| 512 | crop_image=CloneImage(image,1,1,MagickTrue,exception); |
| 513 | if (crop_image == (Image *) NULL) |
| 514 | return((Image *) NULL); |
| 515 | crop_image->background_color.opacity=(Quantum) TransparentOpacity; |
| 516 | (void) SetImageBackgroundColor(crop_image); |
| 517 | crop_image->page=bounding_box; |
| 518 | crop_image->page.x=(-1); |
| 519 | crop_image->page.y=(-1); |
| 520 | if (crop_image->dispose == BackgroundDispose) |
| 521 | crop_image->dispose=NoneDispose; |
| 522 | return(crop_image); |
| 523 | } |
| 524 | if ((page.x < 0) && (bounding_box.x >= 0)) |
| 525 | { |
| 526 | page.width+=page.x-bounding_box.x; |
| 527 | page.x=0; |
| 528 | } |
| 529 | else |
| 530 | { |
| 531 | page.width-=bounding_box.x-page.x; |
| 532 | page.x-=bounding_box.x; |
| 533 | if (page.x < 0) |
| 534 | page.x=0; |
| 535 | } |
| 536 | if ((page.y < 0) && (bounding_box.y >= 0)) |
| 537 | { |
| 538 | page.height+=page.y-bounding_box.y; |
| 539 | page.y=0; |
| 540 | } |
| 541 | else |
| 542 | { |
| 543 | page.height-=bounding_box.y-page.y; |
| 544 | page.y-=bounding_box.y; |
| 545 | if (page.y < 0) |
| 546 | page.y=0; |
| 547 | } |
| 548 | if ((unsigned long) (page.x+page.width) > image->columns) |
| 549 | page.width=image->columns-page.x; |
| 550 | if (geometry->width != 0) |
| 551 | if (page.width > geometry->width) |
| 552 | page.width=geometry->width; |
| 553 | if ((unsigned long) (page.y+page.height) > image->rows) |
| 554 | page.height=image->rows-page.y; |
| 555 | if (geometry->height != 0) |
| 556 | if (page.height > geometry->height) |
| 557 | page.height=geometry->height; |
| 558 | bounding_box.x+=page.x; |
| 559 | bounding_box.y+=page.y; |
| 560 | if ((page.width == 0) || (page.height == 0)) |
| 561 | { |
| 562 | (void) ThrowMagickException(exception,GetMagickModule(),OptionWarning, |
| 563 | "GeometryDoesNotContainImage","`%s'",image->filename); |
| 564 | return((Image *) NULL); |
| 565 | } |
| 566 | /* |
| 567 | Initialize crop image attributes. |
| 568 | */ |
| 569 | crop_image=CloneImage(image,page.width,page.height,MagickTrue,exception); |
| 570 | if (crop_image == (Image *) NULL) |
| 571 | return((Image *) NULL); |
| 572 | crop_image->page.width=image->page.width; |
| 573 | crop_image->page.height=image->page.height; |
| 574 | if (((long) (bounding_box.x+bounding_box.width) > (long) image->page.width) || |
| 575 | ((long) (bounding_box.y+bounding_box.height) > (long) image->page.height)) |
| 576 | { |
| 577 | crop_image->page.width=bounding_box.width; |
| 578 | crop_image->page.height=bounding_box.height; |
| 579 | } |
| 580 | crop_image->page.x=bounding_box.x; |
| 581 | crop_image->page.y=bounding_box.y; |
| 582 | /* |
| 583 | Crop image. |
| 584 | */ |
| 585 | status=MagickTrue; |
| 586 | progress=0; |
| 587 | image_view=AcquireCacheView(image); |
| 588 | crop_view=AcquireCacheView(crop_image); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 589 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 590 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 591 | #endif |
| 592 | for (y=0; y < (long) crop_image->rows; y++) |
| 593 | { |
| 594 | register const IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 595 | *restrict indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 596 | |
| 597 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 598 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 599 | |
| 600 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 601 | *restrict crop_indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 602 | |
| 603 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 604 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 605 | |
| 606 | if (status == MagickFalse) |
| 607 | continue; |
| 608 | p=GetCacheViewVirtualPixels(image_view,page.x,page.y+y,crop_image->columns, |
| 609 | 1,exception); |
| 610 | q=QueueCacheViewAuthenticPixels(crop_view,0,y,crop_image->columns,1, |
| 611 | exception); |
| 612 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 613 | { |
| 614 | status=MagickFalse; |
| 615 | continue; |
| 616 | } |
| 617 | (void) CopyMagickMemory(q,p,(size_t) crop_image->columns*sizeof(*q)); |
| 618 | indexes=GetCacheViewVirtualIndexQueue(image_view); |
| 619 | if (indexes != (IndexPacket *) NULL) |
| 620 | { |
| 621 | crop_indexes=GetCacheViewAuthenticIndexQueue(crop_view); |
| 622 | if (crop_indexes != (IndexPacket *) NULL) |
| 623 | (void) CopyMagickMemory(crop_indexes,indexes,(size_t) |
| 624 | crop_image->columns*sizeof(*crop_indexes)); |
| 625 | } |
| 626 | if (SyncCacheViewAuthenticPixels(crop_view,exception) == MagickFalse) |
| 627 | status=MagickFalse; |
| 628 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 629 | { |
| 630 | MagickBooleanType |
| 631 | proceed; |
| 632 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 633 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 634 | #pragma omp critical (MagickCore_CropImage) |
| 635 | #endif |
| 636 | proceed=SetImageProgress(image,CropImageTag,progress++,image->rows); |
| 637 | if (proceed == MagickFalse) |
| 638 | status=MagickFalse; |
| 639 | } |
| 640 | } |
| 641 | crop_view=DestroyCacheView(crop_view); |
| 642 | image_view=DestroyCacheView(image_view); |
| 643 | crop_image->type=image->type; |
| 644 | if (status == MagickFalse) |
| 645 | crop_image=DestroyImage(crop_image); |
| 646 | return(crop_image); |
| 647 | } |
| 648 | |
| 649 | /* |
| 650 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 651 | % % |
| 652 | % % |
| 653 | % % |
| 654 | % E x c e r p t I m a g e % |
| 655 | % % |
| 656 | % % |
| 657 | % % |
| 658 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 659 | % |
| 660 | % ExcerptImage() returns a excerpt of the image as defined by the geometry. |
| 661 | % |
| 662 | % The format of the ExcerptImage method is: |
| 663 | % |
| 664 | % Image *ExcerptImage(const Image *image,const RectangleInfo *geometry, |
| 665 | % ExceptionInfo *exception) |
| 666 | % |
| 667 | % A description of each parameter follows: |
| 668 | % |
| 669 | % o image: the image. |
| 670 | % |
| 671 | % o geometry: Define the region of the image to extend with members |
| 672 | % x, y, width, and height. |
| 673 | % |
| 674 | % o exception: return any errors or warnings in this structure. |
| 675 | % |
| 676 | */ |
| 677 | MagickExport Image *ExcerptImage(const Image *image, |
| 678 | const RectangleInfo *geometry,ExceptionInfo *exception) |
| 679 | { |
| 680 | #define ExcerptImageTag "Excerpt/Image" |
| 681 | |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 682 | CacheView |
| 683 | *excerpt_view, |
| 684 | *image_view; |
| 685 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 686 | Image |
| 687 | *excerpt_image; |
| 688 | |
| 689 | long |
| 690 | progress, |
| 691 | y; |
| 692 | |
| 693 | MagickBooleanType |
| 694 | status; |
| 695 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 696 | /* |
| 697 | Allocate excerpt image. |
| 698 | */ |
| 699 | assert(image != (const Image *) NULL); |
| 700 | assert(image->signature == MagickSignature); |
| 701 | if (image->debug != MagickFalse) |
| 702 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 703 | assert(geometry != (const RectangleInfo *) NULL); |
| 704 | assert(exception != (ExceptionInfo *) NULL); |
| 705 | assert(exception->signature == MagickSignature); |
| 706 | excerpt_image=CloneImage(image,geometry->width,geometry->height,MagickTrue, |
| 707 | exception); |
| 708 | if (excerpt_image == (Image *) NULL) |
| 709 | return((Image *) NULL); |
| 710 | /* |
| 711 | Excerpt each row. |
| 712 | */ |
| 713 | status=MagickTrue; |
| 714 | progress=0; |
| 715 | image_view=AcquireCacheView(image); |
| 716 | excerpt_view=AcquireCacheView(excerpt_image); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 717 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 718 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 719 | #endif |
| 720 | for (y=0; y < (long) excerpt_image->rows; y++) |
| 721 | { |
| 722 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 723 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 724 | |
| 725 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 726 | *restrict excerpt_indexes, |
| 727 | *restrict indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 728 | |
| 729 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 730 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 731 | |
| 732 | if (status == MagickFalse) |
| 733 | continue; |
| 734 | p=GetCacheViewVirtualPixels(image_view,geometry->x,geometry->y+y, |
| 735 | geometry->width,1,exception); |
| 736 | q=GetCacheViewAuthenticPixels(excerpt_view,0,y,excerpt_image->columns,1, |
| 737 | exception); |
| 738 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 739 | { |
| 740 | status=MagickFalse; |
| 741 | continue; |
| 742 | } |
| 743 | (void) CopyMagickMemory(q,p,(size_t) excerpt_image->columns*sizeof(*q)); |
| 744 | indexes=GetCacheViewAuthenticIndexQueue(image_view); |
| 745 | if (indexes != (IndexPacket *) NULL) |
| 746 | { |
| 747 | excerpt_indexes=GetCacheViewAuthenticIndexQueue(excerpt_view); |
| 748 | if (excerpt_indexes != (IndexPacket *) NULL) |
| 749 | (void) CopyMagickMemory(excerpt_indexes,indexes,(size_t) |
| 750 | excerpt_image->columns*sizeof(*excerpt_indexes)); |
| 751 | } |
| 752 | if (SyncCacheViewAuthenticPixels(excerpt_view,exception) == MagickFalse) |
| 753 | status=MagickFalse; |
| 754 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 755 | { |
| 756 | MagickBooleanType |
| 757 | proceed; |
| 758 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 759 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 760 | #pragma omp critical (MagickCore_ExcerptImage) |
| 761 | #endif |
| 762 | proceed=SetImageProgress(image,ExcerptImageTag,progress++,image->rows); |
| 763 | if (proceed == MagickFalse) |
| 764 | status=MagickFalse; |
| 765 | } |
| 766 | } |
| 767 | excerpt_view=DestroyCacheView(excerpt_view); |
| 768 | image_view=DestroyCacheView(image_view); |
| 769 | excerpt_image->type=image->type; |
| 770 | if (status == MagickFalse) |
| 771 | excerpt_image=DestroyImage(excerpt_image); |
| 772 | return(excerpt_image); |
| 773 | } |
| 774 | |
| 775 | /* |
| 776 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 777 | % % |
| 778 | % % |
| 779 | % % |
| 780 | % E x t e n t I m a g e % |
| 781 | % % |
| 782 | % % |
| 783 | % % |
| 784 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 785 | % |
| 786 | % ExtentImage() extends the image as defined by the geometry, gravity, and |
| 787 | % image background color. Set the (x,y) offset of the geometry to move the |
| 788 | % original image relative to the extended image. |
| 789 | % |
| 790 | % The format of the ExtentImage method is: |
| 791 | % |
| 792 | % Image *ExtentImage(const Image *image,const RectangleInfo *geometry, |
| 793 | % ExceptionInfo *exception) |
| 794 | % |
| 795 | % A description of each parameter follows: |
| 796 | % |
| 797 | % o image: the image. |
| 798 | % |
| 799 | % o geometry: Define the region of the image to extend with members |
| 800 | % x, y, width, and height. |
| 801 | % |
| 802 | % o exception: return any errors or warnings in this structure. |
| 803 | % |
| 804 | */ |
| 805 | MagickExport Image *ExtentImage(const Image *image, |
| 806 | const RectangleInfo *geometry,ExceptionInfo *exception) |
| 807 | { |
| 808 | Image |
| 809 | *extent_image; |
| 810 | |
| 811 | /* |
| 812 | Allocate extent image. |
| 813 | */ |
| 814 | assert(image != (const Image *) NULL); |
| 815 | assert(image->signature == MagickSignature); |
| 816 | if (image->debug != MagickFalse) |
| 817 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 818 | assert(geometry != (const RectangleInfo *) NULL); |
| 819 | assert(exception != (ExceptionInfo *) NULL); |
| 820 | assert(exception->signature == MagickSignature); |
| 821 | extent_image=CloneImage(image,geometry->width,geometry->height,MagickTrue, |
| 822 | exception); |
| 823 | if (extent_image == (Image *) NULL) |
| 824 | return((Image *) NULL); |
| 825 | if (SetImageStorageClass(extent_image,DirectClass) == MagickFalse) |
| 826 | { |
| 827 | InheritException(exception,&extent_image->exception); |
| 828 | extent_image=DestroyImage(extent_image); |
| 829 | return((Image *) NULL); |
| 830 | } |
| 831 | if (extent_image->background_color.opacity != OpaqueOpacity) |
| 832 | extent_image->matte=MagickTrue; |
| 833 | (void) SetImageBackgroundColor(extent_image); |
| 834 | (void) CompositeImage(extent_image,image->compose,image,geometry->x, |
| 835 | geometry->y); |
| 836 | return(extent_image); |
| 837 | } |
| 838 | |
| 839 | /* |
| 840 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 841 | % % |
| 842 | % % |
| 843 | % % |
| 844 | % F l i p I m a g e % |
| 845 | % % |
| 846 | % % |
| 847 | % % |
| 848 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 849 | % |
| 850 | % FlipImage() creates a vertical mirror image by reflecting the pixels |
| 851 | % around the central x-axis. |
| 852 | % |
| 853 | % The format of the FlipImage method is: |
| 854 | % |
| 855 | % Image *FlipImage(const Image *image,ExceptionInfo *exception) |
| 856 | % |
| 857 | % A description of each parameter follows: |
| 858 | % |
| 859 | % o image: the image. |
| 860 | % |
| 861 | % o exception: return any errors or warnings in this structure. |
| 862 | % |
| 863 | */ |
| 864 | MagickExport Image *FlipImage(const Image *image,ExceptionInfo *exception) |
| 865 | { |
| 866 | #define FlipImageTag "Flip/Image" |
| 867 | |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 868 | CacheView |
| 869 | *flip_view, |
| 870 | *image_view; |
| 871 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 872 | Image |
| 873 | *flip_image; |
| 874 | |
| 875 | long |
| 876 | progress, |
| 877 | y; |
| 878 | |
| 879 | MagickBooleanType |
| 880 | status; |
| 881 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 882 | assert(image != (const Image *) NULL); |
| 883 | assert(image->signature == MagickSignature); |
| 884 | if (image->debug != MagickFalse) |
| 885 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 886 | assert(exception != (ExceptionInfo *) NULL); |
| 887 | assert(exception->signature == MagickSignature); |
| 888 | flip_image=CloneImage(image,image->columns,image->rows,MagickTrue,exception); |
| 889 | if (flip_image == (Image *) NULL) |
| 890 | return((Image *) NULL); |
| 891 | /* |
| 892 | Flip image. |
| 893 | */ |
| 894 | status=MagickTrue; |
| 895 | progress=0; |
| 896 | image_view=AcquireCacheView(image); |
| 897 | flip_view=AcquireCacheView(flip_image); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 898 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 899 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 900 | #endif |
| 901 | for (y=0; y < (long) flip_image->rows; y++) |
| 902 | { |
| 903 | register const IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 904 | *restrict indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 905 | |
| 906 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 907 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 908 | |
| 909 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 910 | *restrict flip_indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 911 | |
| 912 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 913 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 914 | |
| 915 | if (status == MagickFalse) |
| 916 | continue; |
| 917 | p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception); |
| 918 | q=QueueCacheViewAuthenticPixels(flip_view,0,(long) (flip_image->rows-y-1), |
| 919 | flip_image->columns,1,exception); |
| 920 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 921 | { |
| 922 | status=MagickFalse; |
| 923 | continue; |
| 924 | } |
| 925 | (void) CopyMagickMemory(q,p,(size_t) image->columns*sizeof(*q)); |
| 926 | indexes=GetCacheViewVirtualIndexQueue(image_view); |
| 927 | if (indexes != (const IndexPacket *) NULL) |
| 928 | { |
| 929 | flip_indexes=GetCacheViewAuthenticIndexQueue(flip_view); |
| 930 | if (flip_indexes != (IndexPacket *) NULL) |
| 931 | (void) CopyMagickMemory(flip_indexes,indexes,(size_t) image->columns* |
| 932 | sizeof(*flip_indexes)); |
| 933 | } |
| 934 | if (SyncCacheViewAuthenticPixels(flip_view,exception) == MagickFalse) |
| 935 | status=MagickFalse; |
| 936 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 937 | { |
| 938 | MagickBooleanType |
| 939 | proceed; |
| 940 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 941 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 942 | #pragma omp critical (MagickCore_FlipImage) |
| 943 | #endif |
| 944 | proceed=SetImageProgress(image,FlipImageTag,progress++,image->rows); |
| 945 | if (proceed == MagickFalse) |
| 946 | status=MagickFalse; |
| 947 | } |
| 948 | } |
| 949 | flip_view=DestroyCacheView(flip_view); |
| 950 | image_view=DestroyCacheView(image_view); |
| 951 | flip_image->type=image->type; |
| 952 | if (status == MagickFalse) |
| 953 | flip_image=DestroyImage(flip_image); |
| 954 | return(flip_image); |
| 955 | } |
| 956 | |
| 957 | /* |
| 958 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 959 | % % |
| 960 | % % |
| 961 | % % |
| 962 | % F l o p I m a g e % |
| 963 | % % |
| 964 | % % |
| 965 | % % |
| 966 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 967 | % |
| 968 | % FlopImage() creates a horizontal mirror image by reflecting the pixels |
| 969 | % around the central y-axis. |
| 970 | % |
| 971 | % The format of the FlopImage method is: |
| 972 | % |
| 973 | % Image *FlopImage(const Image *image,ExceptionInfo *exception) |
| 974 | % |
| 975 | % A description of each parameter follows: |
| 976 | % |
| 977 | % o image: the image. |
| 978 | % |
| 979 | % o exception: return any errors or warnings in this structure. |
| 980 | % |
| 981 | */ |
| 982 | MagickExport Image *FlopImage(const Image *image,ExceptionInfo *exception) |
| 983 | { |
| 984 | #define FlopImageTag "Flop/Image" |
| 985 | |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 986 | CacheView |
| 987 | *flop_view, |
| 988 | *image_view; |
| 989 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 990 | Image |
| 991 | *flop_image; |
| 992 | |
| 993 | long |
| 994 | progress, |
| 995 | y; |
| 996 | |
| 997 | MagickBooleanType |
| 998 | status; |
| 999 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1000 | assert(image != (const Image *) NULL); |
| 1001 | assert(image->signature == MagickSignature); |
| 1002 | if (image->debug != MagickFalse) |
| 1003 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 1004 | assert(exception != (ExceptionInfo *) NULL); |
| 1005 | assert(exception->signature == MagickSignature); |
| 1006 | flop_image=CloneImage(image,image->columns,image->rows,MagickTrue,exception); |
| 1007 | if (flop_image == (Image *) NULL) |
| 1008 | return((Image *) NULL); |
| 1009 | /* |
| 1010 | Flop each row. |
| 1011 | */ |
| 1012 | status=MagickTrue; |
| 1013 | progress=0; |
| 1014 | image_view=AcquireCacheView(image); |
| 1015 | flop_view=AcquireCacheView(flop_image); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 1016 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 1017 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1018 | #endif |
| 1019 | for (y=0; y < (long) flop_image->rows; y++) |
| 1020 | { |
| 1021 | register const IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 1022 | *restrict indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1023 | |
| 1024 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 1025 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1026 | |
| 1027 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 1028 | *restrict flop_indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1029 | |
| 1030 | register long |
| 1031 | x; |
| 1032 | |
| 1033 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 1034 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1035 | |
| 1036 | if (status == MagickFalse) |
| 1037 | continue; |
| 1038 | p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception); |
| 1039 | q=QueueCacheViewAuthenticPixels(flop_view,0,y,flop_image->columns,1, |
| 1040 | exception); |
| 1041 | if ((p == (PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 1042 | { |
| 1043 | status=MagickFalse; |
| 1044 | continue; |
| 1045 | } |
| 1046 | q+=flop_image->columns; |
| 1047 | indexes=GetCacheViewVirtualIndexQueue(image_view); |
| 1048 | flop_indexes=GetCacheViewAuthenticIndexQueue(flop_view); |
| 1049 | for (x=0; x < (long) flop_image->columns; x++) |
| 1050 | { |
| 1051 | (*--q)=(*p++); |
| 1052 | if ((indexes != (const IndexPacket *) NULL) && |
| 1053 | (flop_indexes != (IndexPacket *) NULL)) |
| 1054 | flop_indexes[flop_image->columns-x-1]=indexes[x]; |
| 1055 | } |
| 1056 | if (SyncCacheViewAuthenticPixels(flop_view,exception) == MagickFalse) |
| 1057 | status=MagickFalse; |
| 1058 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 1059 | { |
| 1060 | MagickBooleanType |
| 1061 | proceed; |
| 1062 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 1063 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1064 | #pragma omp critical (MagickCore_FlopImage) |
| 1065 | #endif |
| 1066 | proceed=SetImageProgress(image,FlopImageTag,progress++,image->rows); |
| 1067 | if (proceed == MagickFalse) |
| 1068 | status=MagickFalse; |
| 1069 | } |
| 1070 | } |
| 1071 | flop_view=DestroyCacheView(flop_view); |
| 1072 | image_view=DestroyCacheView(image_view); |
| 1073 | flop_image->type=image->type; |
| 1074 | if (status == MagickFalse) |
| 1075 | flop_image=DestroyImage(flop_image); |
| 1076 | return(flop_image); |
| 1077 | } |
| 1078 | |
| 1079 | /* |
| 1080 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1081 | % % |
| 1082 | % % |
| 1083 | % % |
| 1084 | % R o l l I m a g e % |
| 1085 | % % |
| 1086 | % % |
| 1087 | % % |
| 1088 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1089 | % |
| 1090 | % RollImage() offsets an image as defined by x_offset and y_offset. |
| 1091 | % |
| 1092 | % The format of the RollImage method is: |
| 1093 | % |
| 1094 | % Image *RollImage(const Image *image,const long x_offset, |
| 1095 | % const long y_offset,ExceptionInfo *exception) |
| 1096 | % |
| 1097 | % A description of each parameter follows: |
| 1098 | % |
| 1099 | % o image: the image. |
| 1100 | % |
| 1101 | % o x_offset: the number of columns to roll in the horizontal direction. |
| 1102 | % |
| 1103 | % o y_offset: the number of rows to roll in the vertical direction. |
| 1104 | % |
| 1105 | % o exception: return any errors or warnings in this structure. |
| 1106 | % |
| 1107 | */ |
| 1108 | |
| 1109 | static inline MagickBooleanType CopyImageRegion(Image *destination, |
| 1110 | const Image *source,const unsigned long columns,const unsigned long rows, |
| 1111 | const long sx,const long sy,const long dx,const long dy, |
| 1112 | ExceptionInfo *exception) |
| 1113 | { |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 1114 | CacheView |
| 1115 | *source_view, |
| 1116 | *destination_view; |
| 1117 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1118 | long |
| 1119 | y; |
| 1120 | |
| 1121 | MagickBooleanType |
| 1122 | status; |
| 1123 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1124 | status=MagickTrue; |
| 1125 | source_view=AcquireCacheView(source); |
| 1126 | destination_view=AcquireCacheView(destination); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 1127 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 1128 | #pragma omp parallel for schedule(dynamic,4) shared(status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1129 | #endif |
| 1130 | for (y=0; y < (long) rows; y++) |
| 1131 | { |
| 1132 | MagickBooleanType |
| 1133 | sync; |
| 1134 | |
| 1135 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 1136 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1137 | |
| 1138 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 1139 | *restrict indexes, |
| 1140 | *restrict destination_indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1141 | |
| 1142 | register long |
| 1143 | x; |
| 1144 | |
| 1145 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 1146 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1147 | |
| 1148 | /* |
| 1149 | Transfer scanline. |
| 1150 | */ |
| 1151 | if (status == MagickFalse) |
| 1152 | continue; |
| 1153 | p=GetCacheViewVirtualPixels(source_view,sx,sy+y,columns,1,exception); |
| 1154 | q=GetCacheViewAuthenticPixels(destination_view,dx,dy+y,columns,1,exception); |
| 1155 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 1156 | { |
| 1157 | status=MagickFalse; |
| 1158 | continue; |
| 1159 | } |
| 1160 | indexes=GetCacheViewAuthenticIndexQueue(source_view); |
| 1161 | for (x=0; x < (long) columns; x++) |
| 1162 | *q++=(*p++); |
| 1163 | if (indexes != (IndexPacket *) NULL) |
| 1164 | { |
| 1165 | destination_indexes=GetCacheViewAuthenticIndexQueue(destination_view); |
| 1166 | for (x=0; x < (long) columns; x++) |
| 1167 | destination_indexes[x]=indexes[x]; |
| 1168 | } |
| 1169 | sync=SyncCacheViewAuthenticPixels(destination_view,exception); |
| 1170 | if (sync == MagickFalse) |
| 1171 | status=MagickFalse; |
| 1172 | } |
| 1173 | destination_view=DestroyCacheView(destination_view); |
| 1174 | source_view=DestroyCacheView(source_view); |
| 1175 | return(status); |
| 1176 | } |
| 1177 | |
| 1178 | MagickExport Image *RollImage(const Image *image,const long x_offset, |
| 1179 | const long y_offset,ExceptionInfo *exception) |
| 1180 | { |
| 1181 | #define RollImageTag "Roll/Image" |
| 1182 | |
| 1183 | Image |
| 1184 | *roll_image; |
| 1185 | |
| 1186 | MagickStatusType |
| 1187 | status; |
| 1188 | |
| 1189 | RectangleInfo |
| 1190 | offset; |
| 1191 | |
| 1192 | /* |
| 1193 | Initialize roll image attributes. |
| 1194 | */ |
| 1195 | assert(image != (const Image *) NULL); |
| 1196 | assert(image->signature == MagickSignature); |
| 1197 | if (image->debug != MagickFalse) |
| 1198 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 1199 | assert(exception != (ExceptionInfo *) NULL); |
| 1200 | assert(exception->signature == MagickSignature); |
| 1201 | roll_image=CloneImage(image,image->columns,image->rows,MagickTrue,exception); |
| 1202 | if (roll_image == (Image *) NULL) |
| 1203 | return((Image *) NULL); |
| 1204 | offset.x=x_offset; |
| 1205 | offset.y=y_offset; |
| 1206 | while (offset.x < 0) |
| 1207 | offset.x+=image->columns; |
| 1208 | while (offset.x >= (long) image->columns) |
| 1209 | offset.x-=image->columns; |
| 1210 | while (offset.y < 0) |
| 1211 | offset.y+=image->rows; |
| 1212 | while (offset.y >= (long) image->rows) |
| 1213 | offset.y-=image->rows; |
| 1214 | /* |
| 1215 | Roll image. |
| 1216 | */ |
| 1217 | status=CopyImageRegion(roll_image,image,(unsigned long) offset.x, |
| 1218 | (unsigned long) offset.y,(long) image->columns-offset.x,(long) image->rows- |
| 1219 | offset.y,0,0,exception); |
| 1220 | (void) SetImageProgress(image,RollImageTag,0,3); |
| 1221 | status|=CopyImageRegion(roll_image,image,image->columns-offset.x, |
| 1222 | (unsigned long) offset.y,0,(long) image->rows-offset.y,offset.x,0, |
| 1223 | exception); |
| 1224 | (void) SetImageProgress(image,RollImageTag,1,3); |
| 1225 | status|=CopyImageRegion(roll_image,image,(unsigned long) offset.x,image->rows- |
| 1226 | offset.y,(long) image->columns-offset.x,0,0,offset.y,exception); |
| 1227 | (void) SetImageProgress(image,RollImageTag,2,3); |
| 1228 | status|=CopyImageRegion(roll_image,image,image->columns-offset.x,image->rows- |
| 1229 | offset.y,0,0,offset.x,offset.y,exception); |
| 1230 | (void) SetImageProgress(image,RollImageTag,3,3); |
| 1231 | roll_image->type=image->type; |
| 1232 | if (status == MagickFalse) |
| 1233 | roll_image=DestroyImage(roll_image); |
| 1234 | return(roll_image); |
| 1235 | } |
| 1236 | |
| 1237 | /* |
| 1238 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1239 | % % |
| 1240 | % % |
| 1241 | % % |
| 1242 | % S h a v e I m a g e % |
| 1243 | % % |
| 1244 | % % |
| 1245 | % % |
| 1246 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1247 | % |
| 1248 | % ShaveImage() shaves pixels from the image edges. It allocates the memory |
| 1249 | % necessary for the new Image structure and returns a pointer to the new |
| 1250 | % image. |
| 1251 | % |
| 1252 | % The format of the ShaveImage method is: |
| 1253 | % |
| 1254 | % Image *ShaveImage(const Image *image,const RectangleInfo *shave_info, |
| 1255 | % ExceptionInfo *exception) |
| 1256 | % |
| 1257 | % A description of each parameter follows: |
| 1258 | % |
| 1259 | % o shave_image: Method ShaveImage returns a pointer to the shaved |
| 1260 | % image. A null image is returned if there is a memory shortage or |
| 1261 | % if the image width or height is zero. |
| 1262 | % |
| 1263 | % o image: the image. |
| 1264 | % |
| 1265 | % o shave_info: Specifies a pointer to a RectangleInfo which defines the |
| 1266 | % region of the image to crop. |
| 1267 | % |
| 1268 | % o exception: return any errors or warnings in this structure. |
| 1269 | % |
| 1270 | */ |
| 1271 | MagickExport Image *ShaveImage(const Image *image, |
| 1272 | const RectangleInfo *shave_info,ExceptionInfo *exception) |
| 1273 | { |
| 1274 | Image |
| 1275 | *shave_image; |
| 1276 | |
| 1277 | RectangleInfo |
| 1278 | geometry; |
| 1279 | |
| 1280 | assert(image != (const Image *) NULL); |
| 1281 | assert(image->signature == MagickSignature); |
| 1282 | if (image->debug != MagickFalse) |
| 1283 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 1284 | if (((2*shave_info->width) >= image->columns) || |
| 1285 | ((2*shave_info->height) >= image->rows)) |
| 1286 | ThrowImageException(OptionWarning,"GeometryDoesNotContainImage"); |
| 1287 | SetGeometry(image,&geometry); |
| 1288 | geometry.width-=2*shave_info->width; |
| 1289 | geometry.height-=2*shave_info->height; |
| 1290 | geometry.x=(long) shave_info->width+image->page.x; |
| 1291 | geometry.y=(long) shave_info->height+image->page.y; |
| 1292 | shave_image=CropImage(image,&geometry,exception); |
| 1293 | if (shave_image == (Image *) NULL) |
| 1294 | return((Image *) NULL); |
| 1295 | shave_image->page.width-=2*shave_info->width; |
| 1296 | shave_image->page.height-=2*shave_info->height; |
| 1297 | shave_image->page.x-=shave_info->width; |
| 1298 | shave_image->page.y-=shave_info->height; |
| 1299 | return(shave_image); |
| 1300 | } |
| 1301 | |
| 1302 | /* |
| 1303 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1304 | % % |
| 1305 | % % |
| 1306 | % % |
| 1307 | % S p l i c e I m a g e % |
| 1308 | % % |
| 1309 | % % |
| 1310 | % % |
| 1311 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1312 | % |
| 1313 | % SpliceImage() splices a solid color into the image as defined by the |
| 1314 | % geometry. |
| 1315 | % |
| 1316 | % The format of the SpliceImage method is: |
| 1317 | % |
| 1318 | % Image *SpliceImage(const Image *image,const RectangleInfo *geometry, |
| 1319 | % ExceptionInfo *exception) |
| 1320 | % |
| 1321 | % A description of each parameter follows: |
| 1322 | % |
| 1323 | % o image: the image. |
| 1324 | % |
| 1325 | % o geometry: Define the region of the image to splice with members |
| 1326 | % x, y, width, and height. |
| 1327 | % |
| 1328 | % o exception: return any errors or warnings in this structure. |
| 1329 | % |
| 1330 | */ |
| 1331 | MagickExport Image *SpliceImage(const Image *image, |
| 1332 | const RectangleInfo *geometry,ExceptionInfo *exception) |
| 1333 | { |
| 1334 | #define SpliceImageTag "Splice/Image" |
| 1335 | |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 1336 | CacheView |
| 1337 | *image_view, |
| 1338 | *splice_view; |
| 1339 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1340 | Image |
| 1341 | *splice_image; |
| 1342 | |
| 1343 | long |
| 1344 | progress, |
| 1345 | y; |
| 1346 | |
| 1347 | MagickBooleanType |
| 1348 | proceed, |
| 1349 | status; |
| 1350 | |
| 1351 | RectangleInfo |
| 1352 | splice_geometry; |
| 1353 | |
| 1354 | register long |
| 1355 | i; |
| 1356 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1357 | /* |
| 1358 | Allocate splice image. |
| 1359 | */ |
| 1360 | assert(image != (const Image *) NULL); |
| 1361 | assert(image->signature == MagickSignature); |
| 1362 | if (image->debug != MagickFalse) |
| 1363 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 1364 | assert(geometry != (const RectangleInfo *) NULL); |
| 1365 | assert(exception != (ExceptionInfo *) NULL); |
| 1366 | assert(exception->signature == MagickSignature); |
| 1367 | splice_geometry=(*geometry); |
| 1368 | splice_image=CloneImage(image,image->columns+splice_geometry.width, |
| 1369 | image->rows+splice_geometry.height,MagickTrue,exception); |
| 1370 | if (splice_image == (Image *) NULL) |
| 1371 | return((Image *) NULL); |
| 1372 | if (SetImageStorageClass(splice_image,DirectClass) == MagickFalse) |
| 1373 | { |
| 1374 | InheritException(exception,&splice_image->exception); |
| 1375 | splice_image=DestroyImage(splice_image); |
| 1376 | return((Image *) NULL); |
| 1377 | } |
| 1378 | (void) SetImageBackgroundColor(splice_image); |
| 1379 | /* |
| 1380 | Respect image geometry. |
| 1381 | */ |
| 1382 | switch (image->gravity) |
| 1383 | { |
| 1384 | default: |
| 1385 | case UndefinedGravity: |
| 1386 | case NorthWestGravity: |
| 1387 | break; |
| 1388 | case NorthGravity: |
| 1389 | { |
| 1390 | splice_geometry.x+=splice_geometry.width/2; |
| 1391 | break; |
| 1392 | } |
| 1393 | case NorthEastGravity: |
| 1394 | { |
| 1395 | splice_geometry.x+=splice_geometry.width; |
| 1396 | break; |
| 1397 | } |
| 1398 | case WestGravity: |
| 1399 | { |
| 1400 | splice_geometry.y+=splice_geometry.width/2; |
| 1401 | break; |
| 1402 | } |
| 1403 | case StaticGravity: |
| 1404 | case CenterGravity: |
| 1405 | { |
| 1406 | splice_geometry.x+=splice_geometry.width/2; |
| 1407 | splice_geometry.y+=splice_geometry.height/2; |
| 1408 | break; |
| 1409 | } |
| 1410 | case EastGravity: |
| 1411 | { |
| 1412 | splice_geometry.x+=splice_geometry.width; |
| 1413 | splice_geometry.y+=splice_geometry.height/2; |
| 1414 | break; |
| 1415 | } |
| 1416 | case SouthWestGravity: |
| 1417 | { |
| 1418 | splice_geometry.y+=splice_geometry.height; |
| 1419 | break; |
| 1420 | } |
| 1421 | case SouthGravity: |
| 1422 | { |
| 1423 | splice_geometry.x+=splice_geometry.width/2; |
| 1424 | splice_geometry.y+=splice_geometry.height; |
| 1425 | break; |
| 1426 | } |
| 1427 | case SouthEastGravity: |
| 1428 | { |
| 1429 | splice_geometry.x+=splice_geometry.width; |
| 1430 | splice_geometry.y+=splice_geometry.height; |
| 1431 | break; |
| 1432 | } |
| 1433 | } |
| 1434 | /* |
| 1435 | Splice image. |
| 1436 | */ |
| 1437 | status=MagickTrue; |
| 1438 | i=0; |
| 1439 | progress=0; |
| 1440 | image_view=AcquireCacheView(image); |
| 1441 | splice_view=AcquireCacheView(splice_image); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 1442 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 1443 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1444 | #endif |
| 1445 | for (y=0; y < (long) splice_geometry.y; y++) |
| 1446 | { |
| 1447 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 1448 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1449 | |
| 1450 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 1451 | *restrict indexes, |
| 1452 | *restrict splice_indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1453 | |
| 1454 | register long |
| 1455 | x; |
| 1456 | |
| 1457 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 1458 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1459 | |
| 1460 | if (status == MagickFalse) |
| 1461 | continue; |
| 1462 | p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception); |
| 1463 | q=QueueCacheViewAuthenticPixels(splice_view,0,y,splice_image->columns,1, |
| 1464 | exception); |
| 1465 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 1466 | { |
| 1467 | status=MagickFalse; |
| 1468 | continue; |
| 1469 | } |
| 1470 | indexes=GetCacheViewAuthenticIndexQueue(image_view); |
| 1471 | splice_indexes=GetCacheViewAuthenticIndexQueue(splice_view); |
| 1472 | for (x=0; x < splice_geometry.x; x++) |
| 1473 | { |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1474 | SetRedPixelComponent(q,GetRedPixelComponent(p)); |
| 1475 | SetGreenPixelComponent(q,GetGreenPixelComponent(p)); |
| 1476 | SetBluePixelComponent(q,GetBluePixelComponent(p)); |
| 1477 | SetOpacityPixelComponent(q,OpaqueOpacity); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1478 | if (image->matte != MagickFalse) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1479 | SetOpacityPixelComponent(q,GetOpacityPixelComponent(p)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1480 | if (image->colorspace == CMYKColorspace) |
| 1481 | splice_indexes[x]=(*indexes++); |
| 1482 | p++; |
| 1483 | q++; |
| 1484 | } |
| 1485 | for ( ; x < (long) (splice_geometry.x+splice_geometry.width); x++) |
| 1486 | q++; |
| 1487 | for ( ; x < (long) splice_image->columns; x++) |
| 1488 | { |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1489 | SetRedPixelComponent(q,GetRedPixelComponent(p)); |
| 1490 | SetGreenPixelComponent(q,GetGreenPixelComponent(p)); |
| 1491 | SetBluePixelComponent(q,GetBluePixelComponent(p)); |
| 1492 | SetOpacityPixelComponent(q,OpaqueOpacity); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1493 | if (image->matte != MagickFalse) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1494 | SetOpacityPixelComponent(q,GetOpacityPixelComponent(p)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1495 | if (image->colorspace == CMYKColorspace) |
| 1496 | splice_indexes[x]=(*indexes++); |
| 1497 | p++; |
| 1498 | q++; |
| 1499 | } |
| 1500 | if (SyncCacheViewAuthenticPixels(splice_view,exception) == MagickFalse) |
| 1501 | status=MagickFalse; |
| 1502 | proceed=SetImageProgress(image,SpliceImageTag,y,splice_image->rows); |
| 1503 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 1504 | { |
| 1505 | MagickBooleanType |
| 1506 | proceed; |
| 1507 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 1508 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1509 | #pragma omp critical (MagickCore_TransposeImage) |
| 1510 | #endif |
| 1511 | proceed=SetImageProgress(image,SpliceImageTag,progress++, |
| 1512 | splice_image->rows); |
| 1513 | if (proceed == MagickFalse) |
| 1514 | status=MagickFalse; |
| 1515 | } |
| 1516 | } |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 1517 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 1518 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1519 | #endif |
| 1520 | for (y=(long) (splice_geometry.y+splice_geometry.height); |
| 1521 | y < (long) splice_image->rows; y++) |
| 1522 | { |
| 1523 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 1524 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1525 | |
| 1526 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 1527 | *restrict indexes, |
| 1528 | *restrict splice_indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1529 | |
| 1530 | register long |
| 1531 | x; |
| 1532 | |
| 1533 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 1534 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1535 | |
| 1536 | if (status == MagickFalse) |
| 1537 | continue; |
| 1538 | p=GetCacheViewVirtualPixels(image_view,0,y-splice_geometry.height, |
| 1539 | image->columns,1,exception); |
| 1540 | q=QueueCacheViewAuthenticPixels(splice_view,0,y,splice_image->columns,1, |
| 1541 | exception); |
| 1542 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 1543 | { |
| 1544 | status=MagickFalse; |
| 1545 | continue; |
| 1546 | } |
| 1547 | indexes=GetCacheViewAuthenticIndexQueue(image_view); |
| 1548 | splice_indexes=GetCacheViewAuthenticIndexQueue(splice_view); |
| 1549 | for (x=0; x < splice_geometry.x; x++) |
| 1550 | { |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1551 | SetRedPixelComponent(q,GetRedPixelComponent(p)); |
| 1552 | SetGreenPixelComponent(q,GetGreenPixelComponent(p)); |
| 1553 | SetBluePixelComponent(q,GetBluePixelComponent(p)); |
| 1554 | SetOpacityPixelComponent(q,OpaqueOpacity); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1555 | if (image->matte != MagickFalse) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1556 | SetOpacityPixelComponent(q,GetOpacityPixelComponent(p)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1557 | if (image->colorspace == CMYKColorspace) |
| 1558 | splice_indexes[x]=(*indexes++); |
| 1559 | p++; |
| 1560 | q++; |
| 1561 | } |
| 1562 | for ( ; x < (long) (splice_geometry.x+splice_geometry.width); x++) |
| 1563 | q++; |
| 1564 | for ( ; x < (long) splice_image->columns; x++) |
| 1565 | { |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1566 | SetRedPixelComponent(q,GetRedPixelComponent(p)); |
| 1567 | SetGreenPixelComponent(q,GetGreenPixelComponent(p)); |
| 1568 | SetBluePixelComponent(q,GetBluePixelComponent(p)); |
| 1569 | SetOpacityPixelComponent(q,OpaqueOpacity); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1570 | if (image->matte != MagickFalse) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1571 | SetOpacityPixelComponent(q,GetOpacityPixelComponent(p)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1572 | if (image->colorspace == CMYKColorspace) |
| 1573 | splice_indexes[x]=(*indexes++); |
| 1574 | p++; |
| 1575 | q++; |
| 1576 | } |
| 1577 | if (SyncCacheViewAuthenticPixels(splice_view,exception) == MagickFalse) |
| 1578 | status=MagickFalse; |
| 1579 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 1580 | { |
| 1581 | MagickBooleanType |
| 1582 | proceed; |
| 1583 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 1584 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1585 | #pragma omp critical (MagickCore_TransposeImage) |
| 1586 | #endif |
| 1587 | proceed=SetImageProgress(image,SpliceImageTag,progress++, |
| 1588 | splice_image->rows); |
| 1589 | if (proceed == MagickFalse) |
| 1590 | status=MagickFalse; |
| 1591 | } |
| 1592 | } |
| 1593 | splice_view=DestroyCacheView(splice_view); |
| 1594 | image_view=DestroyCacheView(image_view); |
| 1595 | if (status == MagickFalse) |
| 1596 | splice_image=DestroyImage(splice_image); |
| 1597 | return(splice_image); |
| 1598 | } |
| 1599 | |
| 1600 | /* |
| 1601 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1602 | % % |
| 1603 | % % |
| 1604 | % % |
| 1605 | % T r a n s f o r m I m a g e % |
| 1606 | % % |
| 1607 | % % |
| 1608 | % % |
| 1609 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1610 | % |
| 1611 | % TransformImage() is a convenience method that behaves like ResizeImage() or |
| 1612 | % CropImage() but accepts scaling and/or cropping information as a region |
| 1613 | % geometry specification. If the operation fails, the original image handle |
| 1614 | % is returned. |
| 1615 | % |
| 1616 | % The format of the TransformImage method is: |
| 1617 | % |
| 1618 | % MagickBooleanType TransformImage(Image **image,const char *crop_geometry, |
| 1619 | % const char *image_geometry) |
| 1620 | % |
| 1621 | % A description of each parameter follows: |
| 1622 | % |
| 1623 | % o image: the image The transformed image is returned as this parameter. |
| 1624 | % |
| 1625 | % o crop_geometry: A crop geometry string. This geometry defines a |
| 1626 | % subregion of the image to crop. |
| 1627 | % |
| 1628 | % o image_geometry: An image geometry string. This geometry defines the |
| 1629 | % final size of the image. |
| 1630 | % |
| 1631 | */ |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 1632 | static inline long MagickRound(MagickRealType x) |
anthony | c0429ed | 2009-12-27 08:22:42 +0000 | [diff] [blame] | 1633 | { |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 1634 | /* |
| 1635 | Round the fraction to nearest integer. |
| 1636 | */ |
anthony | c0429ed | 2009-12-27 08:22:42 +0000 | [diff] [blame] | 1637 | if (x >= 0.0) |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 1638 | return((long) (x+0.5)); |
| 1639 | return((long) (x-0.5)); |
anthony | c0429ed | 2009-12-27 08:22:42 +0000 | [diff] [blame] | 1640 | } |
| 1641 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1642 | MagickExport MagickBooleanType TransformImage(Image **image, |
| 1643 | const char *crop_geometry,const char *image_geometry) |
| 1644 | { |
| 1645 | Image |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 1646 | *next, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1647 | *resize_image, |
| 1648 | *transform_image; |
| 1649 | |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 1650 | long |
| 1651 | x, |
| 1652 | y; |
| 1653 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1654 | MagickStatusType |
| 1655 | flags; |
| 1656 | |
| 1657 | RectangleInfo |
| 1658 | geometry; |
| 1659 | |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 1660 | unsigned long |
| 1661 | height, |
| 1662 | width; |
| 1663 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1664 | assert(image != (Image **) NULL); |
| 1665 | assert((*image)->signature == MagickSignature); |
| 1666 | if ((*image)->debug != MagickFalse) |
| 1667 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",(*image)->filename); |
| 1668 | transform_image=(*image); |
| 1669 | if (crop_geometry != (const char *) NULL) |
| 1670 | { |
| 1671 | Image |
| 1672 | *crop_image; |
| 1673 | |
| 1674 | RectangleInfo |
| 1675 | geometry; |
| 1676 | |
| 1677 | /* |
| 1678 | Crop image to a user specified size. |
| 1679 | */ |
| 1680 | crop_image=NewImageList(); |
| 1681 | flags=ParseGravityGeometry(transform_image,crop_geometry,&geometry, |
| 1682 | &(*image)->exception); |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 1683 | if ((flags & AreaValue) != 0) |
anthony | c0429ed | 2009-12-27 08:22:42 +0000 | [diff] [blame] | 1684 | { |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 1685 | PointInfo |
cristy | 4eced73 | 2010-02-10 22:26:28 +0000 | [diff] [blame] | 1686 | delta, |
| 1687 | offset; |
anthony | c0429ed | 2009-12-27 08:22:42 +0000 | [diff] [blame] | 1688 | |
| 1689 | RectangleInfo |
| 1690 | crop; |
| 1691 | |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 1692 | /* |
| 1693 | Crop into NxM tiles (@ flag) - AT. |
| 1694 | */ |
| 1695 | if (geometry.width == 0) |
| 1696 | geometry.width=1; |
| 1697 | if (geometry.height == 0) |
| 1698 | geometry.height=1; |
| 1699 | width=transform_image->columns; |
| 1700 | height=transform_image->rows; |
anthony | c0429ed | 2009-12-27 08:22:42 +0000 | [diff] [blame] | 1701 | if ((flags & AspectValue) == 0) |
| 1702 | { |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 1703 | width-=(geometry.x < 0 ? -1 : 1)*geometry.x; |
| 1704 | height-=(geometry.y < 0 ? -1 : 1)*geometry.y; |
anthony | c0429ed | 2009-12-27 08:22:42 +0000 | [diff] [blame] | 1705 | } |
| 1706 | else |
| 1707 | { |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 1708 | width+=(geometry.x < 0 ? -1 : 1)*geometry.x; |
| 1709 | height+=(geometry.y < 0 ? -1 : 1)*geometry.y; |
anthony | c0429ed | 2009-12-27 08:22:42 +0000 | [diff] [blame] | 1710 | } |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 1711 | delta.x=(double) width/geometry.width; |
| 1712 | delta.y=(double) height/geometry.height; |
anthony | c0429ed | 2009-12-27 08:22:42 +0000 | [diff] [blame] | 1713 | next=NewImageList(); |
cristy | 4eced73 | 2010-02-10 22:26:28 +0000 | [diff] [blame] | 1714 | for (offset.y=0; offset.y < (double) height; ) |
anthony | c0429ed | 2009-12-27 08:22:42 +0000 | [diff] [blame] | 1715 | { |
| 1716 | if ((flags & AspectValue) == 0) |
| 1717 | { |
cristy | 4eced73 | 2010-02-10 22:26:28 +0000 | [diff] [blame] | 1718 | crop.y=(long) MagickRound((MagickRealType) (offset.y- |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 1719 | (geometry.y > 0 ? 0 : geometry.y))); |
cristy | 4eced73 | 2010-02-10 22:26:28 +0000 | [diff] [blame] | 1720 | offset.y+=delta.y; |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 1721 | crop.height=(unsigned long) MagickRound((MagickRealType) |
cristy | 4eced73 | 2010-02-10 22:26:28 +0000 | [diff] [blame] | 1722 | (offset.y+(geometry.y < 0 ? 0 : geometry.y))); |
anthony | c0429ed | 2009-12-27 08:22:42 +0000 | [diff] [blame] | 1723 | } |
| 1724 | else |
| 1725 | { |
cristy | 4eced73 | 2010-02-10 22:26:28 +0000 | [diff] [blame] | 1726 | crop.y=(long) MagickRound((MagickRealType) (offset.y- |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 1727 | (geometry.y > 0 ? geometry.y : 0))); |
cristy | 4eced73 | 2010-02-10 22:26:28 +0000 | [diff] [blame] | 1728 | offset.y+=delta.y; |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 1729 | crop.height=(unsigned long) MagickRound((MagickRealType) |
cristy | 4eced73 | 2010-02-10 22:26:28 +0000 | [diff] [blame] | 1730 | (offset.y+(geometry.y < 0 ? geometry.y : 0))); |
anthony | c0429ed | 2009-12-27 08:22:42 +0000 | [diff] [blame] | 1731 | } |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 1732 | crop.height-=crop.y; |
cristy | 4eced73 | 2010-02-10 22:26:28 +0000 | [diff] [blame] | 1733 | for (offset.x=0; offset.x < (double) width; ) |
anthony | c0429ed | 2009-12-27 08:22:42 +0000 | [diff] [blame] | 1734 | { |
| 1735 | if ((flags & AspectValue) == 0) |
| 1736 | { |
cristy | 4eced73 | 2010-02-10 22:26:28 +0000 | [diff] [blame] | 1737 | crop.x=(long) MagickRound((MagickRealType) (offset.x- |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 1738 | (geometry.x > 0 ? 0 : geometry.x))); |
cristy | 4eced73 | 2010-02-10 22:26:28 +0000 | [diff] [blame] | 1739 | offset.x+=+delta.x; |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 1740 | crop.width=(unsigned long) MagickRound((MagickRealType) |
cristy | 4eced73 | 2010-02-10 22:26:28 +0000 | [diff] [blame] | 1741 | (offset.x+(geometry.x < 0 ? 0 : geometry.x))); |
anthony | c0429ed | 2009-12-27 08:22:42 +0000 | [diff] [blame] | 1742 | } |
| 1743 | else |
| 1744 | { |
cristy | 4eced73 | 2010-02-10 22:26:28 +0000 | [diff] [blame] | 1745 | crop.x=(long) MagickRound((MagickRealType) (offset.x- |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 1746 | (geometry.x > 0 ? geometry.x : 0))); |
cristy | 4eced73 | 2010-02-10 22:26:28 +0000 | [diff] [blame] | 1747 | offset.x+=+delta.x; |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 1748 | crop.width=(unsigned long) MagickRound((MagickRealType) |
cristy | 4eced73 | 2010-02-10 22:26:28 +0000 | [diff] [blame] | 1749 | (offset.x+(geometry.x < 0 ? geometry.x : 0))); |
anthony | c0429ed | 2009-12-27 08:22:42 +0000 | [diff] [blame] | 1750 | } |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 1751 | crop.width-=crop.x; |
anthony | c0429ed | 2009-12-27 08:22:42 +0000 | [diff] [blame] | 1752 | next=CropImage(transform_image,&crop,&(*image)->exception); |
| 1753 | if (next == (Image *) NULL) |
| 1754 | break; |
| 1755 | AppendImageToList(&crop_image,next); |
| 1756 | } |
| 1757 | if (next == (Image *) NULL) |
| 1758 | break; |
| 1759 | } |
| 1760 | } |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 1761 | else |
| 1762 | if (((geometry.width == 0) && (geometry.height == 0)) || |
anthony | c0429ed | 2009-12-27 08:22:42 +0000 | [diff] [blame] | 1763 | ((flags & XValue) != 0) || ((flags & YValue) != 0)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1764 | { |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 1765 | /* |
| 1766 | Crop a single region at +X+Y. |
| 1767 | */ |
| 1768 | crop_image=CropImage(transform_image,&geometry, |
| 1769 | &(*image)->exception); |
| 1770 | if ((crop_image != (Image *) NULL) && ((flags & AspectValue) != 0)) |
| 1771 | { |
| 1772 | crop_image->page.width=geometry.width; |
| 1773 | crop_image->page.height=geometry.height; |
| 1774 | crop_image->page.x-=geometry.x; |
| 1775 | crop_image->page.y-=geometry.y; |
| 1776 | } |
| 1777 | } |
| 1778 | else |
| 1779 | if ((transform_image->columns > geometry.width) || |
| 1780 | (transform_image->rows > geometry.height)) |
| 1781 | { |
| 1782 | MagickBooleanType |
| 1783 | proceed; |
| 1784 | |
| 1785 | MagickProgressMonitor |
| 1786 | progress_monitor; |
| 1787 | |
| 1788 | MagickOffsetType |
| 1789 | i; |
| 1790 | |
| 1791 | MagickSizeType |
| 1792 | number_images; |
| 1793 | |
| 1794 | /* |
| 1795 | Crop into tiles of fixed size WxH. |
| 1796 | */ |
| 1797 | if (transform_image->page.width == 0) |
| 1798 | transform_image->page.width=transform_image->columns; |
| 1799 | if (transform_image->page.height == 0) |
| 1800 | transform_image->page.height=transform_image->rows; |
| 1801 | width=geometry.width; |
| 1802 | if (width == 0) |
| 1803 | width=transform_image->page.width; |
| 1804 | height=geometry.height; |
| 1805 | if (height == 0) |
| 1806 | height=transform_image->page.height; |
| 1807 | next=NewImageList(); |
| 1808 | proceed=MagickTrue; |
| 1809 | i=0; |
cristy | 0e9f9c1 | 2010-02-11 03:00:47 +0000 | [diff] [blame^] | 1810 | number_images=0; |
| 1811 | for (y=0; y < (long) transform_image->page.height; y+=height) |
| 1812 | for (x=0; x < (long) transform_image->page.width; x+=width) |
| 1813 | number_images++; |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 1814 | for (y=0; y < (long) transform_image->page.height; y+=height) |
| 1815 | { |
| 1816 | for (x=0; x < (long) transform_image->page.width; x+=width) |
| 1817 | { |
| 1818 | progress_monitor=SetImageProgressMonitor(transform_image, |
| 1819 | (MagickProgressMonitor) NULL,transform_image->client_data); |
| 1820 | geometry.width=width; |
| 1821 | geometry.height=height; |
| 1822 | geometry.x=x; |
| 1823 | geometry.y=y; |
| 1824 | next=CropImage(transform_image,&geometry,&(*image)->exception); |
| 1825 | (void) SetImageProgressMonitor(transform_image, |
| 1826 | progress_monitor,transform_image->client_data); |
| 1827 | proceed=SetImageProgress(transform_image,CropImageTag,i++, |
| 1828 | number_images); |
| 1829 | if (proceed == MagickFalse) |
| 1830 | break; |
| 1831 | if (next == (Image *) NULL) |
| 1832 | break; |
cristy | 36507e6 | 2010-02-11 00:26:48 +0000 | [diff] [blame] | 1833 | (void) SetImageProgressMonitor(next,progress_monitor, |
| 1834 | next->client_data); |
cristy | 508d931 | 2010-02-10 21:10:30 +0000 | [diff] [blame] | 1835 | AppendImageToList(&crop_image,next); |
| 1836 | } |
| 1837 | if (next == (Image *) NULL) |
| 1838 | break; |
| 1839 | if (proceed == MagickFalse) |
| 1840 | break; |
| 1841 | } |
| 1842 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1843 | if (crop_image == (Image *) NULL) |
| 1844 | transform_image=CloneImage(*image,0,0,MagickTrue,&(*image)->exception); |
| 1845 | else |
| 1846 | { |
| 1847 | transform_image=DestroyImage(transform_image); |
| 1848 | transform_image=GetFirstImageInList(crop_image); |
| 1849 | } |
| 1850 | *image=transform_image; |
| 1851 | } |
| 1852 | if (image_geometry == (const char *) NULL) |
| 1853 | return(MagickTrue); |
| 1854 | /* |
| 1855 | Scale image to a user specified size. |
| 1856 | */ |
| 1857 | flags=ParseRegionGeometry(transform_image,image_geometry,&geometry, |
| 1858 | &(*image)->exception); |
| 1859 | if ((transform_image->columns == geometry.width) && |
| 1860 | (transform_image->rows == geometry.height)) |
| 1861 | return(MagickTrue); |
| 1862 | resize_image=ZoomImage(transform_image,geometry.width,geometry.height, |
| 1863 | &(*image)->exception); |
| 1864 | if (resize_image == (Image *) NULL) |
| 1865 | return(MagickFalse); |
| 1866 | transform_image=DestroyImage(transform_image); |
| 1867 | transform_image=resize_image; |
| 1868 | *image=transform_image; |
| 1869 | return(MagickTrue); |
| 1870 | } |
| 1871 | |
| 1872 | /* |
| 1873 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1874 | % % |
| 1875 | % % |
| 1876 | % % |
| 1877 | % T r a n s f o r m I m a g e s % |
| 1878 | % % |
| 1879 | % % |
| 1880 | % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1881 | % |
| 1882 | % TransformImages() calls TransformImage() on each image of a sequence. |
| 1883 | % |
| 1884 | % The format of the TransformImage method is: |
| 1885 | % |
| 1886 | % MagickBooleanType TransformImages(Image **image, |
| 1887 | % const char *crop_geometry,const char *image_geometry) |
| 1888 | % |
| 1889 | % A description of each parameter follows: |
| 1890 | % |
| 1891 | % o image: the image The transformed image is returned as this parameter. |
| 1892 | % |
| 1893 | % o crop_geometry: A crop geometry string. This geometry defines a |
| 1894 | % subregion of the image to crop. |
| 1895 | % |
| 1896 | % o image_geometry: An image geometry string. This geometry defines the |
| 1897 | % final size of the image. |
| 1898 | % |
| 1899 | */ |
| 1900 | MagickExport MagickBooleanType TransformImages(Image **images, |
| 1901 | const char *crop_geometry,const char *image_geometry) |
| 1902 | { |
| 1903 | Image |
| 1904 | *image, |
| 1905 | **image_list, |
| 1906 | *transform_images; |
| 1907 | |
| 1908 | MagickStatusType |
| 1909 | status; |
| 1910 | |
| 1911 | register long |
| 1912 | i; |
| 1913 | |
| 1914 | assert(images != (Image **) NULL); |
| 1915 | assert((*images)->signature == MagickSignature); |
| 1916 | if ((*images)->debug != MagickFalse) |
| 1917 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", |
| 1918 | (*images)->filename); |
| 1919 | image_list=ImageListToArray(*images,&(*images)->exception); |
| 1920 | if (image_list == (Image **) NULL) |
| 1921 | return(MagickFalse); |
| 1922 | status=MagickTrue; |
| 1923 | transform_images=NewImageList(); |
| 1924 | for (i=0; image_list[i] != (Image *) NULL; i++) |
| 1925 | { |
| 1926 | image=image_list[i]; |
| 1927 | status|=TransformImage(&image,crop_geometry,image_geometry); |
| 1928 | AppendImageToList(&transform_images,image); |
| 1929 | } |
| 1930 | *images=transform_images; |
| 1931 | image_list=(Image **) RelinquishMagickMemory(image_list); |
| 1932 | return(status != 0 ? MagickTrue : MagickFalse); |
| 1933 | } |
| 1934 | |
| 1935 | /* |
| 1936 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1937 | % % |
| 1938 | % % |
| 1939 | % % |
| 1940 | % T r a n s p o s e I m a g e % |
| 1941 | % % |
| 1942 | % % |
| 1943 | % % |
| 1944 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1945 | % |
| 1946 | % TransposeImage() creates a horizontal mirror image by reflecting the pixels |
| 1947 | % around the central y-axis while rotating them by 90 degrees. |
| 1948 | % |
| 1949 | % The format of the TransposeImage method is: |
| 1950 | % |
| 1951 | % Image *TransposeImage(const Image *image,ExceptionInfo *exception) |
| 1952 | % |
| 1953 | % A description of each parameter follows: |
| 1954 | % |
| 1955 | % o image: the image. |
| 1956 | % |
| 1957 | % o exception: return any errors or warnings in this structure. |
| 1958 | % |
| 1959 | */ |
| 1960 | MagickExport Image *TransposeImage(const Image *image,ExceptionInfo *exception) |
| 1961 | { |
| 1962 | #define TransposeImageTag "Transpose/Image" |
| 1963 | |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 1964 | CacheView |
| 1965 | *image_view, |
| 1966 | *transpose_view; |
| 1967 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1968 | Image |
| 1969 | *transpose_image; |
| 1970 | |
| 1971 | long |
| 1972 | progress, |
| 1973 | y; |
| 1974 | |
| 1975 | MagickBooleanType |
| 1976 | status; |
| 1977 | |
| 1978 | RectangleInfo |
| 1979 | page; |
| 1980 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1981 | assert(image != (const Image *) NULL); |
| 1982 | assert(image->signature == MagickSignature); |
| 1983 | if (image->debug != MagickFalse) |
| 1984 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 1985 | assert(exception != (ExceptionInfo *) NULL); |
| 1986 | assert(exception->signature == MagickSignature); |
| 1987 | transpose_image=CloneImage(image,image->rows,image->columns,MagickTrue, |
| 1988 | exception); |
| 1989 | if (transpose_image == (Image *) NULL) |
| 1990 | return((Image *) NULL); |
| 1991 | /* |
| 1992 | Transpose image. |
| 1993 | */ |
| 1994 | status=MagickTrue; |
| 1995 | progress=0; |
| 1996 | image_view=AcquireCacheView(image); |
| 1997 | transpose_view=AcquireCacheView(transpose_image); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 1998 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 1999 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2000 | #endif |
| 2001 | for (y=0; y < (long) image->rows; y++) |
| 2002 | { |
| 2003 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 2004 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2005 | |
| 2006 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 2007 | *restrict transpose_indexes, |
| 2008 | *restrict indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2009 | |
| 2010 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 2011 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2012 | |
| 2013 | if (status == MagickFalse) |
| 2014 | continue; |
| 2015 | p=GetCacheViewVirtualPixels(image_view,0,(long) image->rows-y-1, |
| 2016 | image->columns,1,exception); |
| 2017 | q=QueueCacheViewAuthenticPixels(transpose_view,(long) (image->rows-y-1),0, |
| 2018 | 1,transpose_image->rows,exception); |
| 2019 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 2020 | { |
| 2021 | status=MagickFalse; |
| 2022 | continue; |
| 2023 | } |
| 2024 | (void) CopyMagickMemory(q,p,(size_t) image->columns*sizeof(*q)); |
| 2025 | indexes=GetCacheViewAuthenticIndexQueue(image_view); |
| 2026 | if (indexes != (IndexPacket *) NULL) |
| 2027 | { |
| 2028 | transpose_indexes=GetCacheViewAuthenticIndexQueue(transpose_view); |
| 2029 | if (transpose_indexes != (IndexPacket *) NULL) |
| 2030 | (void) CopyMagickMemory(transpose_indexes,indexes,(size_t) |
| 2031 | image->columns*sizeof(*transpose_indexes)); |
| 2032 | } |
| 2033 | if (SyncCacheViewAuthenticPixels(transpose_view,exception) == MagickFalse) |
| 2034 | status=MagickFalse; |
| 2035 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 2036 | { |
| 2037 | MagickBooleanType |
| 2038 | proceed; |
| 2039 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 2040 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2041 | #pragma omp critical (MagickCore_TransposeImage) |
| 2042 | #endif |
| 2043 | proceed=SetImageProgress(image,TransposeImageTag,progress++, |
| 2044 | image->rows); |
| 2045 | if (proceed == MagickFalse) |
| 2046 | status=MagickFalse; |
| 2047 | } |
| 2048 | } |
| 2049 | transpose_view=DestroyCacheView(transpose_view); |
| 2050 | image_view=DestroyCacheView(image_view); |
| 2051 | transpose_image->type=image->type; |
| 2052 | page=transpose_image->page; |
| 2053 | Swap(page.width,page.height); |
| 2054 | Swap(page.x,page.y); |
| 2055 | if (page.width != 0) |
| 2056 | page.x=(long) (page.width-transpose_image->columns-page.x); |
| 2057 | transpose_image->page=page; |
| 2058 | if (status == MagickFalse) |
| 2059 | transpose_image=DestroyImage(transpose_image); |
| 2060 | return(transpose_image); |
| 2061 | } |
| 2062 | |
| 2063 | /* |
| 2064 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 2065 | % % |
| 2066 | % % |
| 2067 | % % |
| 2068 | % T r a n s v e r s e I m a g e % |
| 2069 | % % |
| 2070 | % % |
| 2071 | % % |
| 2072 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 2073 | % |
| 2074 | % TransverseImage() creates a vertical mirror image by reflecting the pixels |
| 2075 | % around the central x-axis while rotating them by 270 degrees. |
| 2076 | % |
| 2077 | % The format of the TransverseImage method is: |
| 2078 | % |
| 2079 | % Image *TransverseImage(const Image *image,ExceptionInfo *exception) |
| 2080 | % |
| 2081 | % A description of each parameter follows: |
| 2082 | % |
| 2083 | % o image: the image. |
| 2084 | % |
| 2085 | % o exception: return any errors or warnings in this structure. |
| 2086 | % |
| 2087 | */ |
| 2088 | MagickExport Image *TransverseImage(const Image *image,ExceptionInfo *exception) |
| 2089 | { |
| 2090 | #define TransverseImageTag "Transverse/Image" |
| 2091 | |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 2092 | CacheView |
| 2093 | *image_view, |
| 2094 | *transverse_view; |
| 2095 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2096 | Image |
| 2097 | *transverse_image; |
| 2098 | |
| 2099 | long |
| 2100 | progress, |
| 2101 | y; |
| 2102 | |
| 2103 | MagickBooleanType |
| 2104 | status; |
| 2105 | |
| 2106 | RectangleInfo |
| 2107 | page; |
| 2108 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2109 | assert(image != (const Image *) NULL); |
| 2110 | assert(image->signature == MagickSignature); |
| 2111 | if (image->debug != MagickFalse) |
| 2112 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 2113 | assert(exception != (ExceptionInfo *) NULL); |
| 2114 | assert(exception->signature == MagickSignature); |
| 2115 | transverse_image=CloneImage(image,image->rows,image->columns,MagickTrue, |
| 2116 | exception); |
| 2117 | if (transverse_image == (Image *) NULL) |
| 2118 | return((Image *) NULL); |
| 2119 | /* |
| 2120 | Transverse image. |
| 2121 | */ |
| 2122 | status=MagickTrue; |
| 2123 | progress=0; |
| 2124 | image_view=AcquireCacheView(image); |
| 2125 | transverse_view=AcquireCacheView(transverse_image); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 2126 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 2127 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2128 | #endif |
| 2129 | for (y=0; y < (long) image->rows; y++) |
| 2130 | { |
| 2131 | MagickBooleanType |
| 2132 | sync; |
| 2133 | |
| 2134 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 2135 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2136 | |
| 2137 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 2138 | *restrict transverse_indexes, |
| 2139 | *restrict indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2140 | |
| 2141 | register long |
| 2142 | x; |
| 2143 | |
| 2144 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 2145 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2146 | |
| 2147 | if (status == MagickFalse) |
| 2148 | continue; |
| 2149 | p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception); |
| 2150 | q=QueueCacheViewAuthenticPixels(transverse_view,(long) (image->rows-y- |
| 2151 | 1),0,1,transverse_image->rows,exception); |
| 2152 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 2153 | { |
| 2154 | status=MagickFalse; |
| 2155 | continue; |
| 2156 | } |
| 2157 | q+=image->columns; |
| 2158 | for (x=0; x < (long) image->columns; x++) |
| 2159 | *--q=(*p++); |
| 2160 | indexes=GetCacheViewAuthenticIndexQueue(image_view); |
| 2161 | if (indexes != (IndexPacket *) NULL) |
| 2162 | { |
| 2163 | transverse_indexes=GetCacheViewAuthenticIndexQueue(transverse_view); |
| 2164 | if (transverse_indexes != (IndexPacket *) NULL) |
| 2165 | for (x=0; x < (long) image->columns; x++) |
| 2166 | transverse_indexes[image->columns-x-1]=indexes[x]; |
| 2167 | } |
| 2168 | sync=SyncCacheViewAuthenticPixels(transverse_view,exception); |
| 2169 | if (sync == MagickFalse) |
| 2170 | status=MagickFalse; |
| 2171 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 2172 | { |
| 2173 | MagickBooleanType |
| 2174 | proceed; |
| 2175 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 2176 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2177 | #pragma omp critical (MagickCore_TransverseImage) |
| 2178 | #endif |
| 2179 | proceed=SetImageProgress(image,TransverseImageTag,progress++, |
| 2180 | image->rows); |
| 2181 | if (proceed == MagickFalse) |
| 2182 | status=MagickFalse; |
| 2183 | } |
| 2184 | } |
| 2185 | transverse_view=DestroyCacheView(transverse_view); |
| 2186 | image_view=DestroyCacheView(image_view); |
| 2187 | transverse_image->type=image->type; |
| 2188 | page=transverse_image->page; |
| 2189 | Swap(page.width,page.height); |
| 2190 | Swap(page.x,page.y); |
| 2191 | if (page.height != 0) |
| 2192 | page.y=(long) (page.height-transverse_image->rows-page.y); |
| 2193 | transverse_image->page=page; |
| 2194 | if (status == MagickFalse) |
| 2195 | transverse_image=DestroyImage(transverse_image); |
| 2196 | return(transverse_image); |
| 2197 | } |
| 2198 | |
| 2199 | /* |
| 2200 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 2201 | % % |
| 2202 | % % |
| 2203 | % % |
| 2204 | % T r i m I m a g e % |
| 2205 | % % |
| 2206 | % % |
| 2207 | % % |
| 2208 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 2209 | % |
| 2210 | % TrimImage() trims pixels from the image edges. It allocates the memory |
| 2211 | % necessary for the new Image structure and returns a pointer to the new |
| 2212 | % image. |
| 2213 | % |
| 2214 | % The format of the TrimImage method is: |
| 2215 | % |
| 2216 | % Image *TrimImage(const Image *image,ExceptionInfo *exception) |
| 2217 | % |
| 2218 | % A description of each parameter follows: |
| 2219 | % |
| 2220 | % o image: the image. |
| 2221 | % |
| 2222 | % o exception: return any errors or warnings in this structure. |
| 2223 | % |
| 2224 | */ |
| 2225 | MagickExport Image *TrimImage(const Image *image,ExceptionInfo *exception) |
| 2226 | { |
| 2227 | RectangleInfo |
| 2228 | geometry; |
| 2229 | |
| 2230 | assert(image != (const Image *) NULL); |
| 2231 | assert(image->signature == MagickSignature); |
| 2232 | if (image->debug != MagickFalse) |
| 2233 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 2234 | geometry=GetImageBoundingBox(image,exception); |
| 2235 | if ((geometry.width == 0) || (geometry.height == 0)) |
| 2236 | { |
| 2237 | Image |
| 2238 | *crop_image; |
| 2239 | |
| 2240 | crop_image=CloneImage(image,1,1,MagickTrue,exception); |
| 2241 | if (crop_image == (Image *) NULL) |
| 2242 | return((Image *) NULL); |
| 2243 | crop_image->background_color.opacity=(Quantum) TransparentOpacity; |
| 2244 | (void) SetImageBackgroundColor(crop_image); |
| 2245 | crop_image->page=image->page; |
| 2246 | crop_image->page.x=(-1); |
| 2247 | crop_image->page.y=(-1); |
| 2248 | return(crop_image); |
| 2249 | } |
| 2250 | geometry.x+=image->page.x; |
| 2251 | geometry.y+=image->page.y; |
| 2252 | return(CropImage(image,&geometry,exception)); |
| 2253 | } |