cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1 | /* |
| 2 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3 | % % |
| 4 | % % |
| 5 | % % |
| 6 | % V V IIIII FFFFF FFFFF % |
| 7 | % V V I F F % |
| 8 | % V V I FFF FFF % |
| 9 | % V V I F F % |
| 10 | % V IIIII F F % |
| 11 | % % |
| 12 | % % |
| 13 | % Read/Write Khoros Visualization Image Format % |
| 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" |
| 43 | #include "magick/blob.h" |
| 44 | #include "magick/blob-private.h" |
| 45 | #include "magick/cache.h" |
| 46 | #include "magick/color.h" |
| 47 | #include "magick/color-private.h" |
cristy | e7e4055 | 2010-04-24 21:34:22 +0000 | [diff] [blame] | 48 | #include "magick/colormap.h" |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 49 | #include "magick/colorspace.h" |
| 50 | #include "magick/exception.h" |
| 51 | #include "magick/exception-private.h" |
| 52 | #include "magick/image.h" |
| 53 | #include "magick/image-private.h" |
| 54 | #include "magick/list.h" |
| 55 | #include "magick/magick.h" |
| 56 | #include "magick/memory_.h" |
| 57 | #include "magick/monitor.h" |
| 58 | #include "magick/monitor-private.h" |
| 59 | #include "magick/property.h" |
| 60 | #include "magick/quantum-private.h" |
| 61 | #include "magick/static.h" |
| 62 | #include "magick/string_.h" |
| 63 | #include "magick/module.h" |
| 64 | |
| 65 | /* |
| 66 | Forward declarations. |
| 67 | */ |
| 68 | static MagickBooleanType |
| 69 | WriteVIFFImage(const ImageInfo *,Image *); |
| 70 | |
| 71 | /* |
| 72 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 73 | % % |
| 74 | % % |
| 75 | % % |
| 76 | % I s V I F F % |
| 77 | % % |
| 78 | % % |
| 79 | % % |
| 80 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 81 | % |
| 82 | % IsVIFF() returns MagickTrue if the image format type, identified by the |
| 83 | % magick string, is VIFF. |
| 84 | % |
| 85 | % The format of the IsVIFF method is: |
| 86 | % |
| 87 | % MagickBooleanType IsVIFF(const unsigned char *magick,const size_t length) |
| 88 | % |
| 89 | % A description of each parameter follows: |
| 90 | % |
| 91 | % o magick: compare image format pattern against these bytes. |
| 92 | % |
| 93 | % o length: Specifies the length of the magick string. |
| 94 | % |
| 95 | % |
| 96 | */ |
| 97 | static MagickBooleanType IsVIFF(const unsigned char *magick,const size_t length) |
| 98 | { |
| 99 | if (length < 2) |
| 100 | return(MagickFalse); |
| 101 | if (memcmp(magick,"\253\001",2) == 0) |
| 102 | return(MagickTrue); |
| 103 | return(MagickFalse); |
| 104 | } |
| 105 | |
| 106 | /* |
| 107 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 108 | % % |
| 109 | % % |
| 110 | % % |
| 111 | % R e a d V I F F I m a g e % |
| 112 | % % |
| 113 | % % |
| 114 | % % |
| 115 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 116 | % |
| 117 | % ReadVIFFImage() reads a Khoros Visualization image file and returns |
| 118 | % it. It allocates the memory necessary for the new Image structure and |
| 119 | % returns a pointer to the new image. |
| 120 | % |
| 121 | % The format of the ReadVIFFImage method is: |
| 122 | % |
| 123 | % Image *ReadVIFFImage(const ImageInfo *image_info, |
| 124 | % ExceptionInfo *exception) |
| 125 | % |
| 126 | % A description of each parameter follows: |
| 127 | % |
| 128 | % o image: Method ReadVIFFImage returns a pointer to the image after |
| 129 | % reading. A null image is returned if there is a memory shortage or if |
| 130 | % the image cannot be read. |
| 131 | % |
| 132 | % o image_info: the image info. |
| 133 | % |
| 134 | % o exception: return any errors or warnings in this structure. |
| 135 | % |
| 136 | */ |
| 137 | static Image *ReadVIFFImage(const ImageInfo *image_info, |
| 138 | ExceptionInfo *exception) |
| 139 | { |
| 140 | #define VFF_CM_genericRGB 15 |
| 141 | #define VFF_CM_ntscRGB 1 |
| 142 | #define VFF_CM_NONE 0 |
| 143 | #define VFF_DEP_DECORDER 0x4 |
| 144 | #define VFF_DEP_NSORDER 0x8 |
| 145 | #define VFF_DES_RAW 0 |
| 146 | #define VFF_LOC_IMPLICIT 1 |
| 147 | #define VFF_MAPTYP_NONE 0 |
| 148 | #define VFF_MAPTYP_1_BYTE 1 |
| 149 | #define VFF_MAPTYP_2_BYTE 2 |
| 150 | #define VFF_MAPTYP_4_BYTE 4 |
| 151 | #define VFF_MAPTYP_FLOAT 5 |
| 152 | #define VFF_MAPTYP_DOUBLE 7 |
| 153 | #define VFF_MS_NONE 0 |
| 154 | #define VFF_MS_ONEPERBAND 1 |
| 155 | #define VFF_MS_SHARED 3 |
| 156 | #define VFF_TYP_BIT 0 |
| 157 | #define VFF_TYP_1_BYTE 1 |
| 158 | #define VFF_TYP_2_BYTE 2 |
| 159 | #define VFF_TYP_4_BYTE 4 |
| 160 | #define VFF_TYP_FLOAT 5 |
| 161 | #define VFF_TYP_DOUBLE 9 |
| 162 | |
| 163 | typedef struct _ViffInfo |
| 164 | { |
| 165 | unsigned char |
| 166 | identifier, |
| 167 | file_type, |
| 168 | release, |
| 169 | version, |
| 170 | machine_dependency, |
| 171 | reserve[3]; |
| 172 | |
| 173 | char |
| 174 | comment[512]; |
| 175 | |
cristy | 5d89f43 | 2010-05-30 00:00:26 +0000 | [diff] [blame] | 176 | unsigned int |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 177 | rows, |
| 178 | columns, |
| 179 | subrows; |
| 180 | |
cristy | eaedf06 | 2010-05-29 22:36:02 +0000 | [diff] [blame] | 181 | int |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 182 | x_offset, |
| 183 | y_offset; |
| 184 | |
| 185 | float |
| 186 | x_bits_per_pixel, |
| 187 | y_bits_per_pixel; |
| 188 | |
cristy | eaedf06 | 2010-05-29 22:36:02 +0000 | [diff] [blame] | 189 | unsigned int |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 190 | location_type, |
| 191 | location_dimension, |
| 192 | number_of_images, |
| 193 | number_data_bands, |
| 194 | data_storage_type, |
| 195 | data_encode_scheme, |
| 196 | map_scheme, |
| 197 | map_storage_type, |
| 198 | map_rows, |
| 199 | map_columns, |
| 200 | map_subrows, |
| 201 | map_enable, |
| 202 | maps_per_cycle, |
| 203 | color_space_model; |
| 204 | } ViffInfo; |
| 205 | |
| 206 | double |
| 207 | min_value, |
| 208 | scale_factor, |
| 209 | value; |
| 210 | |
| 211 | Image |
| 212 | *image; |
| 213 | |
| 214 | int |
| 215 | bit; |
| 216 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 217 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 218 | y; |
| 219 | |
| 220 | MagickBooleanType |
| 221 | status; |
| 222 | |
| 223 | MagickSizeType |
| 224 | number_pixels; |
| 225 | |
| 226 | register IndexPacket |
| 227 | *indexes; |
| 228 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 229 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 230 | x; |
| 231 | |
| 232 | register PixelPacket |
| 233 | *q; |
| 234 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 235 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 236 | i; |
| 237 | |
| 238 | register unsigned char |
| 239 | *p; |
| 240 | |
| 241 | ssize_t |
| 242 | count; |
| 243 | |
| 244 | unsigned char |
| 245 | buffer[7], |
| 246 | *viff_pixels; |
| 247 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 248 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 249 | bytes_per_pixel, |
| 250 | lsb_first, |
| 251 | max_packets, |
| 252 | quantum; |
| 253 | |
| 254 | ViffInfo |
| 255 | viff_info; |
| 256 | |
| 257 | /* |
| 258 | Open image file. |
| 259 | */ |
| 260 | assert(image_info != (const ImageInfo *) NULL); |
| 261 | assert(image_info->signature == MagickSignature); |
| 262 | if (image_info->debug != MagickFalse) |
| 263 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", |
| 264 | image_info->filename); |
| 265 | assert(exception != (ExceptionInfo *) NULL); |
| 266 | assert(exception->signature == MagickSignature); |
| 267 | image=AcquireImage(image_info); |
| 268 | status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); |
| 269 | if (status == MagickFalse) |
| 270 | { |
| 271 | image=DestroyImageList(image); |
| 272 | return((Image *) NULL); |
| 273 | } |
| 274 | /* |
| 275 | Read VIFF header (1024 bytes). |
| 276 | */ |
| 277 | count=ReadBlob(image,1,&viff_info.identifier); |
| 278 | do |
| 279 | { |
| 280 | /* |
| 281 | Verify VIFF identifier. |
| 282 | */ |
| 283 | if ((count == 0) || ((unsigned char) viff_info.identifier != 0xab)) |
| 284 | ThrowReaderException(CorruptImageError,"NotAVIFFImage"); |
| 285 | /* |
| 286 | Initialize VIFF image. |
| 287 | */ |
| 288 | count=ReadBlob(image,7,buffer); |
| 289 | viff_info.file_type=buffer[0]; |
| 290 | viff_info.release=buffer[1]; |
| 291 | viff_info.version=buffer[2]; |
| 292 | viff_info.machine_dependency=buffer[3]; |
| 293 | count=ReadBlob(image,512,(unsigned char *) viff_info.comment); |
| 294 | viff_info.comment[511]='\0'; |
| 295 | if (strlen(viff_info.comment) > 4) |
| 296 | (void) SetImageProperty(image,"comment",viff_info.comment); |
| 297 | if ((viff_info.machine_dependency == VFF_DEP_DECORDER) || |
| 298 | (viff_info.machine_dependency == VFF_DEP_NSORDER)) |
| 299 | { |
| 300 | viff_info.rows=ReadBlobLSBLong(image); |
| 301 | viff_info.columns=ReadBlobLSBLong(image); |
| 302 | viff_info.subrows=ReadBlobLSBLong(image); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 303 | viff_info.x_offset=(ssize_t) ReadBlobLSBLong(image); |
| 304 | viff_info.y_offset=(ssize_t) ReadBlobLSBLong(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 305 | viff_info.x_bits_per_pixel=(float) ReadBlobLSBLong(image); |
| 306 | viff_info.y_bits_per_pixel=(float) ReadBlobLSBLong(image); |
| 307 | viff_info.location_type=ReadBlobLSBLong(image); |
| 308 | viff_info.location_dimension=ReadBlobLSBLong(image); |
| 309 | viff_info.number_of_images=ReadBlobLSBLong(image); |
| 310 | viff_info.number_data_bands=ReadBlobLSBLong(image); |
| 311 | viff_info.data_storage_type=ReadBlobLSBLong(image); |
| 312 | viff_info.data_encode_scheme=ReadBlobLSBLong(image); |
| 313 | viff_info.map_scheme=ReadBlobLSBLong(image); |
| 314 | viff_info.map_storage_type=ReadBlobLSBLong(image); |
| 315 | viff_info.map_rows=ReadBlobLSBLong(image); |
| 316 | viff_info.map_columns=ReadBlobLSBLong(image); |
| 317 | viff_info.map_subrows=ReadBlobLSBLong(image); |
| 318 | viff_info.map_enable=ReadBlobLSBLong(image); |
| 319 | viff_info.maps_per_cycle=ReadBlobLSBLong(image); |
| 320 | viff_info.color_space_model=ReadBlobLSBLong(image); |
| 321 | } |
| 322 | else |
| 323 | { |
| 324 | viff_info.rows=ReadBlobMSBLong(image); |
| 325 | viff_info.columns=ReadBlobMSBLong(image); |
| 326 | viff_info.subrows=ReadBlobMSBLong(image); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 327 | viff_info.x_offset=(ssize_t) ReadBlobMSBLong(image); |
| 328 | viff_info.y_offset=(ssize_t) ReadBlobMSBLong(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 329 | viff_info.x_bits_per_pixel=(float) ReadBlobMSBLong(image); |
| 330 | viff_info.y_bits_per_pixel=(float) ReadBlobMSBLong(image); |
| 331 | viff_info.location_type=ReadBlobMSBLong(image); |
| 332 | viff_info.location_dimension=ReadBlobMSBLong(image); |
| 333 | viff_info.number_of_images=ReadBlobMSBLong(image); |
| 334 | viff_info.number_data_bands=ReadBlobMSBLong(image); |
| 335 | viff_info.data_storage_type=ReadBlobMSBLong(image); |
| 336 | viff_info.data_encode_scheme=ReadBlobMSBLong(image); |
| 337 | viff_info.map_scheme=ReadBlobMSBLong(image); |
| 338 | viff_info.map_storage_type=ReadBlobMSBLong(image); |
| 339 | viff_info.map_rows=ReadBlobMSBLong(image); |
| 340 | viff_info.map_columns=ReadBlobMSBLong(image); |
| 341 | viff_info.map_subrows=ReadBlobMSBLong(image); |
| 342 | viff_info.map_enable=ReadBlobMSBLong(image); |
| 343 | viff_info.maps_per_cycle=ReadBlobMSBLong(image); |
| 344 | viff_info.color_space_model=ReadBlobMSBLong(image); |
| 345 | } |
| 346 | for (i=0; i < 420; i++) |
| 347 | (void) ReadBlobByte(image); |
| 348 | image->columns=viff_info.rows; |
| 349 | image->rows=viff_info.columns; |
| 350 | image->depth=viff_info.x_bits_per_pixel <= 8 ? 8UL : MAGICKCORE_QUANTUM_DEPTH; |
| 351 | /* |
| 352 | Verify that we can read this VIFF image. |
| 353 | */ |
| 354 | number_pixels=(MagickSizeType) viff_info.columns*viff_info.rows; |
| 355 | if (number_pixels != (size_t) number_pixels) |
| 356 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
| 357 | if (number_pixels == 0) |
| 358 | ThrowReaderException(CoderError,"ImageColumnOrRowSizeIsNotSupported"); |
| 359 | if ((viff_info.number_data_bands < 1) || (viff_info.number_data_bands > 4)) |
| 360 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| 361 | if ((viff_info.data_storage_type != VFF_TYP_BIT) && |
| 362 | (viff_info.data_storage_type != VFF_TYP_1_BYTE) && |
| 363 | (viff_info.data_storage_type != VFF_TYP_2_BYTE) && |
| 364 | (viff_info.data_storage_type != VFF_TYP_4_BYTE) && |
| 365 | (viff_info.data_storage_type != VFF_TYP_FLOAT) && |
| 366 | (viff_info.data_storage_type != VFF_TYP_DOUBLE)) |
| 367 | ThrowReaderException(CoderError,"DataStorageTypeIsNotSupported"); |
| 368 | if (viff_info.data_encode_scheme != VFF_DES_RAW) |
| 369 | ThrowReaderException(CoderError,"DataEncodingSchemeIsNotSupported"); |
| 370 | if ((viff_info.map_storage_type != VFF_MAPTYP_NONE) && |
| 371 | (viff_info.map_storage_type != VFF_MAPTYP_1_BYTE) && |
| 372 | (viff_info.map_storage_type != VFF_MAPTYP_2_BYTE) && |
| 373 | (viff_info.map_storage_type != VFF_MAPTYP_4_BYTE) && |
| 374 | (viff_info.map_storage_type != VFF_MAPTYP_FLOAT) && |
| 375 | (viff_info.map_storage_type != VFF_MAPTYP_DOUBLE)) |
| 376 | ThrowReaderException(CoderError,"MapStorageTypeIsNotSupported"); |
| 377 | if ((viff_info.color_space_model != VFF_CM_NONE) && |
| 378 | (viff_info.color_space_model != VFF_CM_ntscRGB) && |
| 379 | (viff_info.color_space_model != VFF_CM_genericRGB)) |
| 380 | ThrowReaderException(CoderError,"ColorspaceModelIsNotSupported"); |
| 381 | if (viff_info.location_type != VFF_LOC_IMPLICIT) |
| 382 | ThrowReaderException(CoderError,"LocationTypeIsNotSupported"); |
| 383 | if (viff_info.number_of_images != 1) |
| 384 | ThrowReaderException(CoderError,"NumberOfImagesIsNotSupported"); |
| 385 | if (viff_info.map_rows == 0) |
| 386 | viff_info.map_scheme=VFF_MS_NONE; |
| 387 | switch ((int) viff_info.map_scheme) |
| 388 | { |
| 389 | case VFF_MS_NONE: |
| 390 | { |
| 391 | if (viff_info.number_data_bands < 3) |
| 392 | { |
| 393 | /* |
| 394 | Create linear color ramp. |
| 395 | */ |
| 396 | image->colors=image->depth <= 8 ? 256UL : 65536UL; |
| 397 | if (viff_info.data_storage_type == VFF_TYP_BIT) |
| 398 | image->colors=2; |
| 399 | if (AcquireImageColormap(image,image->colors) == MagickFalse) |
| 400 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
| 401 | } |
| 402 | break; |
| 403 | } |
| 404 | case VFF_MS_ONEPERBAND: |
| 405 | case VFF_MS_SHARED: |
| 406 | { |
| 407 | unsigned char |
| 408 | *viff_colormap; |
| 409 | |
| 410 | /* |
| 411 | Allocate VIFF colormap. |
| 412 | */ |
| 413 | switch ((int) viff_info.map_storage_type) |
| 414 | { |
| 415 | case VFF_MAPTYP_1_BYTE: bytes_per_pixel=1; break; |
| 416 | case VFF_MAPTYP_2_BYTE: bytes_per_pixel=2; break; |
| 417 | case VFF_MAPTYP_4_BYTE: bytes_per_pixel=4; break; |
| 418 | case VFF_MAPTYP_FLOAT: bytes_per_pixel=4; break; |
| 419 | case VFF_MAPTYP_DOUBLE: bytes_per_pixel=8; break; |
| 420 | default: bytes_per_pixel=1; break; |
| 421 | } |
| 422 | image->colors=viff_info.map_columns; |
| 423 | if (AcquireImageColormap(image,image->colors) == MagickFalse) |
| 424 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
| 425 | viff_colormap=(unsigned char *) AcquireQuantumMemory(image->colors, |
| 426 | viff_info.map_rows*bytes_per_pixel*sizeof(*viff_colormap)); |
| 427 | if (viff_colormap == (unsigned char *) NULL) |
| 428 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
| 429 | /* |
| 430 | Read VIFF raster colormap. |
| 431 | */ |
| 432 | count=ReadBlob(image,bytes_per_pixel*image->colors*viff_info.map_rows, |
| 433 | viff_colormap); |
| 434 | lsb_first=1; |
| 435 | if (*(char *) &lsb_first && |
| 436 | ((viff_info.machine_dependency != VFF_DEP_DECORDER) && |
| 437 | (viff_info.machine_dependency != VFF_DEP_NSORDER))) |
| 438 | switch ((int) viff_info.map_storage_type) |
| 439 | { |
| 440 | case VFF_MAPTYP_2_BYTE: |
| 441 | { |
| 442 | MSBOrderShort(viff_colormap,(bytes_per_pixel*image->colors* |
| 443 | viff_info.map_rows)); |
| 444 | break; |
| 445 | } |
| 446 | case VFF_MAPTYP_4_BYTE: |
| 447 | case VFF_MAPTYP_FLOAT: |
| 448 | { |
| 449 | MSBOrderLong(viff_colormap,(bytes_per_pixel*image->colors* |
| 450 | viff_info.map_rows)); |
| 451 | break; |
| 452 | } |
| 453 | default: break; |
| 454 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 455 | for (i=0; i < (ssize_t) (viff_info.map_rows*image->colors); i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 456 | { |
| 457 | switch ((int) viff_info.map_storage_type) |
| 458 | { |
| 459 | case VFF_MAPTYP_2_BYTE: value=1.0*((short *) viff_colormap)[i]; break; |
| 460 | case VFF_MAPTYP_4_BYTE: value=1.0*((int *) viff_colormap)[i]; break; |
| 461 | case VFF_MAPTYP_FLOAT: value=((float *) viff_colormap)[i]; break; |
| 462 | case VFF_MAPTYP_DOUBLE: value=((double *) viff_colormap)[i]; break; |
| 463 | default: value=1.0*viff_colormap[i]; break; |
| 464 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 465 | if (i < (ssize_t) image->colors) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 466 | { |
| 467 | image->colormap[i].red=ScaleCharToQuantum((unsigned char) value); |
| 468 | image->colormap[i].green= |
| 469 | ScaleCharToQuantum((unsigned char) value); |
| 470 | image->colormap[i].blue=ScaleCharToQuantum((unsigned char) value); |
| 471 | } |
| 472 | else |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 473 | if (i < (ssize_t) (2*image->colors)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 474 | image->colormap[i % image->colors].green= |
| 475 | ScaleCharToQuantum((unsigned char) value); |
| 476 | else |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 477 | if (i < (ssize_t) (3*image->colors)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 478 | image->colormap[i % image->colors].blue= |
| 479 | ScaleCharToQuantum((unsigned char) value); |
| 480 | } |
| 481 | viff_colormap=(unsigned char *) RelinquishMagickMemory(viff_colormap); |
| 482 | break; |
| 483 | } |
| 484 | default: |
| 485 | ThrowReaderException(CoderError,"ColormapTypeNotSupported"); |
| 486 | } |
| 487 | /* |
| 488 | Initialize image structure. |
| 489 | */ |
| 490 | image->matte=viff_info.number_data_bands == 4 ? MagickTrue : MagickFalse; |
| 491 | image->storage_class= |
| 492 | (viff_info.number_data_bands < 3 ? PseudoClass : DirectClass); |
| 493 | image->columns=viff_info.rows; |
| 494 | image->rows=viff_info.columns; |
| 495 | if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0)) |
| 496 | if (image->scene >= (image_info->scene+image_info->number_scenes-1)) |
| 497 | break; |
| 498 | /* |
| 499 | Allocate VIFF pixels. |
| 500 | */ |
| 501 | switch ((int) viff_info.data_storage_type) |
| 502 | { |
| 503 | case VFF_TYP_2_BYTE: bytes_per_pixel=2; break; |
| 504 | case VFF_TYP_4_BYTE: bytes_per_pixel=4; break; |
| 505 | case VFF_TYP_FLOAT: bytes_per_pixel=4; break; |
| 506 | case VFF_TYP_DOUBLE: bytes_per_pixel=8; break; |
| 507 | default: bytes_per_pixel=1; break; |
| 508 | } |
| 509 | if (viff_info.data_storage_type == VFF_TYP_BIT) |
| 510 | max_packets=((image->columns+7UL) >> 3UL)*image->rows; |
| 511 | else |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 512 | max_packets=(size_t) (number_pixels*viff_info.number_data_bands); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 513 | viff_pixels=(unsigned char *) AcquireQuantumMemory(max_packets, |
| 514 | bytes_per_pixel*sizeof(*viff_pixels)); |
| 515 | if (viff_pixels == (unsigned char *) NULL) |
| 516 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
| 517 | count=ReadBlob(image,bytes_per_pixel*max_packets,viff_pixels); |
| 518 | lsb_first=1; |
| 519 | if (*(char *) &lsb_first && |
| 520 | ((viff_info.machine_dependency != VFF_DEP_DECORDER) && |
| 521 | (viff_info.machine_dependency != VFF_DEP_NSORDER))) |
| 522 | switch ((int) viff_info.data_storage_type) |
| 523 | { |
| 524 | case VFF_TYP_2_BYTE: |
| 525 | { |
| 526 | MSBOrderShort(viff_pixels,bytes_per_pixel*max_packets); |
| 527 | break; |
| 528 | } |
| 529 | case VFF_TYP_4_BYTE: |
| 530 | case VFF_TYP_FLOAT: |
| 531 | { |
| 532 | MSBOrderLong(viff_pixels,bytes_per_pixel*max_packets); |
| 533 | break; |
| 534 | } |
| 535 | default: break; |
| 536 | } |
| 537 | min_value=0.0; |
| 538 | scale_factor=1.0; |
| 539 | if ((viff_info.data_storage_type != VFF_TYP_1_BYTE) && |
| 540 | (viff_info.map_scheme == VFF_MS_NONE)) |
| 541 | { |
| 542 | double |
| 543 | max_value; |
| 544 | |
| 545 | /* |
| 546 | Determine scale factor. |
| 547 | */ |
| 548 | switch ((int) viff_info.data_storage_type) |
| 549 | { |
| 550 | case VFF_TYP_2_BYTE: value=1.0*((short *) viff_pixels)[0]; break; |
| 551 | case VFF_TYP_4_BYTE: value=1.0*((int *) viff_pixels)[0]; break; |
| 552 | case VFF_TYP_FLOAT: value=((float *) viff_pixels)[0]; break; |
| 553 | case VFF_TYP_DOUBLE: value=((double *) viff_pixels)[0]; break; |
| 554 | default: value=1.0*viff_pixels[0]; break; |
| 555 | } |
| 556 | max_value=value; |
| 557 | min_value=value; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 558 | for (i=0; i < (ssize_t) max_packets; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 559 | { |
| 560 | switch ((int) viff_info.data_storage_type) |
| 561 | { |
| 562 | case VFF_TYP_2_BYTE: value=1.0*((short *) viff_pixels)[i]; break; |
| 563 | case VFF_TYP_4_BYTE: value=1.0*((int *) viff_pixels)[i]; break; |
| 564 | case VFF_TYP_FLOAT: value=((float *) viff_pixels)[i]; break; |
| 565 | case VFF_TYP_DOUBLE: value=((double *) viff_pixels)[i]; break; |
| 566 | default: value=1.0*viff_pixels[i]; break; |
| 567 | } |
| 568 | if (value > max_value) |
| 569 | max_value=value; |
| 570 | else |
| 571 | if (value < min_value) |
| 572 | min_value=value; |
| 573 | } |
| 574 | if ((min_value == 0) && (max_value == 0)) |
| 575 | scale_factor=0; |
| 576 | else |
| 577 | if (min_value == max_value) |
| 578 | { |
| 579 | scale_factor=(MagickRealType) QuantumRange/min_value; |
| 580 | min_value=0; |
| 581 | } |
| 582 | else |
| 583 | scale_factor=(MagickRealType) QuantumRange/(max_value-min_value); |
| 584 | } |
| 585 | /* |
| 586 | Convert pixels to Quantum size. |
| 587 | */ |
| 588 | p=(unsigned char *) viff_pixels; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 589 | for (i=0; i < (ssize_t) max_packets; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 590 | { |
| 591 | switch ((int) viff_info.data_storage_type) |
| 592 | { |
| 593 | case VFF_TYP_2_BYTE: value=1.0*((short *) viff_pixels)[i]; break; |
| 594 | case VFF_TYP_4_BYTE: value=1.0*((int *) viff_pixels)[i]; break; |
| 595 | case VFF_TYP_FLOAT: value=((float *) viff_pixels)[i]; break; |
| 596 | case VFF_TYP_DOUBLE: value=((double *) viff_pixels)[i]; break; |
| 597 | default: value=1.0*viff_pixels[i]; break; |
| 598 | } |
| 599 | if (viff_info.map_scheme == VFF_MS_NONE) |
| 600 | { |
| 601 | value=(value-min_value)*scale_factor; |
| 602 | if (value > QuantumRange) |
| 603 | value=QuantumRange; |
| 604 | else |
| 605 | if (value < 0) |
| 606 | value=0; |
| 607 | } |
| 608 | *p=(unsigned char) value; |
| 609 | p++; |
| 610 | } |
| 611 | /* |
| 612 | Convert VIFF raster image to pixel packets. |
| 613 | */ |
| 614 | p=(unsigned char *) viff_pixels; |
| 615 | if (viff_info.data_storage_type == VFF_TYP_BIT) |
| 616 | { |
| 617 | /* |
| 618 | Convert bitmap scanline. |
| 619 | */ |
| 620 | (void) SetImageType(image,BilevelType); |
| 621 | (void) SetImageType(image,PaletteType); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 622 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 623 | { |
| 624 | q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| 625 | if (q == (PixelPacket *) NULL) |
| 626 | break; |
| 627 | indexes=GetAuthenticIndexQueue(image); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 628 | for (x=0; x < (ssize_t) (image->columns-7); x+=8) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 629 | { |
| 630 | for (bit=0; bit < 8; bit++) |
| 631 | if (PixelIntensity(q) < ((MagickRealType) QuantumRange/2.0)) |
| 632 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 633 | quantum=(size_t) indexes[x+bit]; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 634 | quantum|=0x01; |
| 635 | indexes[x+bit]=(IndexPacket) quantum; |
| 636 | } |
| 637 | p++; |
| 638 | } |
| 639 | if ((image->columns % 8) != 0) |
| 640 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 641 | for (bit=0; bit < (ssize_t) (image->columns % 8); bit++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 642 | if (PixelIntensity(q) < ((MagickRealType) QuantumRange/2.0)) |
| 643 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 644 | quantum=(size_t) indexes[x+bit]; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 645 | quantum|=0x01; |
| 646 | indexes[x+bit]=(IndexPacket) quantum; |
| 647 | } |
| 648 | p++; |
| 649 | } |
| 650 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 651 | break; |
| 652 | if (image->previous == (Image *) NULL) |
| 653 | { |
cristy | cee9711 | 2010-05-28 00:44:52 +0000 | [diff] [blame] | 654 | status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y, |
| 655 | image->rows); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 656 | if (status == MagickFalse) |
| 657 | break; |
| 658 | } |
| 659 | } |
| 660 | } |
| 661 | else |
| 662 | if (image->storage_class == PseudoClass) |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 663 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 664 | { |
| 665 | q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| 666 | if (q == (PixelPacket *) NULL) |
| 667 | break; |
| 668 | indexes=GetAuthenticIndexQueue(image); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 669 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 670 | indexes[x]=(IndexPacket) (*p++); |
| 671 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 672 | break; |
| 673 | if (image->previous == (Image *) NULL) |
| 674 | { |
cristy | cee9711 | 2010-05-28 00:44:52 +0000 | [diff] [blame] | 675 | status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y, |
| 676 | image->rows); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 677 | if (status == MagickFalse) |
| 678 | break; |
| 679 | } |
| 680 | } |
| 681 | else |
| 682 | { |
| 683 | /* |
| 684 | Convert DirectColor scanline. |
| 685 | */ |
| 686 | number_pixels=(MagickSizeType) image->columns*image->rows; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 687 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 688 | { |
| 689 | q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| 690 | if (q == (PixelPacket *) NULL) |
| 691 | break; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 692 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 693 | { |
| 694 | q->red=ScaleCharToQuantum(*p); |
| 695 | q->green=ScaleCharToQuantum(*(p+number_pixels)); |
| 696 | q->blue=ScaleCharToQuantum(*(p+2*number_pixels)); |
| 697 | if (image->colors != 0) |
| 698 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 699 | q->red=image->colormap[(ssize_t) q->red].red; |
| 700 | q->green=image->colormap[(ssize_t) q->green].green; |
| 701 | q->blue=image->colormap[(ssize_t) q->blue].blue; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 702 | } |
| 703 | q->opacity=(Quantum) (image->matte ? QuantumRange- |
| 704 | ScaleCharToQuantum(*(p+number_pixels*3)) : OpaqueOpacity); |
| 705 | p++; |
| 706 | q++; |
| 707 | } |
| 708 | if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| 709 | break; |
| 710 | if (image->previous == (Image *) NULL) |
| 711 | { |
cristy | cee9711 | 2010-05-28 00:44:52 +0000 | [diff] [blame] | 712 | status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y, |
| 713 | image->rows); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 714 | if (status == MagickFalse) |
| 715 | break; |
| 716 | } |
| 717 | } |
| 718 | } |
| 719 | viff_pixels=(unsigned char *) RelinquishMagickMemory(viff_pixels); |
| 720 | if (image->storage_class == PseudoClass) |
| 721 | (void) SyncImage(image); |
| 722 | if (EOFBlob(image) != MagickFalse) |
| 723 | { |
| 724 | ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile", |
| 725 | image->filename); |
| 726 | break; |
| 727 | } |
| 728 | /* |
| 729 | Proceed to next image. |
| 730 | */ |
| 731 | if (image_info->number_scenes != 0) |
| 732 | if (image->scene >= (image_info->scene+image_info->number_scenes-1)) |
| 733 | break; |
| 734 | count=ReadBlob(image,1,&viff_info.identifier); |
| 735 | if ((count != 0) && (viff_info.identifier == 0xab)) |
| 736 | { |
| 737 | /* |
| 738 | Allocate next image structure. |
| 739 | */ |
| 740 | AcquireNextImage(image_info,image); |
| 741 | if (GetNextImageInList(image) == (Image *) NULL) |
| 742 | { |
| 743 | image=DestroyImageList(image); |
| 744 | return((Image *) NULL); |
| 745 | } |
| 746 | image=SyncNextImageInList(image); |
| 747 | status=SetImageProgress(image,LoadImagesTag,TellBlob(image), |
| 748 | GetBlobSize(image)); |
| 749 | if (status == MagickFalse) |
| 750 | break; |
| 751 | } |
| 752 | } while ((count != 0) && (viff_info.identifier == 0xab)); |
| 753 | (void) CloseBlob(image); |
| 754 | return(GetFirstImageInList(image)); |
| 755 | } |
| 756 | |
| 757 | /* |
| 758 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 759 | % % |
| 760 | % % |
| 761 | % % |
| 762 | % R e g i s t e r V I F F I m a g e % |
| 763 | % % |
| 764 | % % |
| 765 | % % |
| 766 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 767 | % |
| 768 | % RegisterVIFFImage() adds properties for the VIFF image format to |
| 769 | % the list of supported formats. The properties include the image format |
| 770 | % tag, a method to read and/or write the format, whether the format |
| 771 | % supports the saving of more than one frame to the same file or blob, |
| 772 | % whether the format supports native in-memory I/O, and a brief |
| 773 | % description of the format. |
| 774 | % |
| 775 | % The format of the RegisterVIFFImage method is: |
| 776 | % |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 777 | % size_t RegisterVIFFImage(void) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 778 | % |
| 779 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 780 | ModuleExport size_t RegisterVIFFImage(void) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 781 | { |
| 782 | MagickInfo |
| 783 | *entry; |
| 784 | |
| 785 | entry=SetMagickInfo("VIFF"); |
| 786 | entry->decoder=(DecodeImageHandler *) ReadVIFFImage; |
| 787 | entry->encoder=(EncodeImageHandler *) WriteVIFFImage; |
| 788 | entry->magick=(IsImageFormatHandler *) IsVIFF; |
| 789 | entry->description=ConstantString("Khoros Visualization image"); |
| 790 | entry->module=ConstantString("VIFF"); |
| 791 | (void) RegisterMagickInfo(entry); |
| 792 | entry=SetMagickInfo("XV"); |
| 793 | entry->decoder=(DecodeImageHandler *) ReadVIFFImage; |
| 794 | entry->encoder=(EncodeImageHandler *) WriteVIFFImage; |
| 795 | entry->description=ConstantString("Khoros Visualization image"); |
| 796 | entry->module=ConstantString("VIFF"); |
| 797 | (void) RegisterMagickInfo(entry); |
| 798 | return(MagickImageCoderSignature); |
| 799 | } |
| 800 | |
| 801 | /* |
| 802 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 803 | % % |
| 804 | % % |
| 805 | % % |
| 806 | % U n r e g i s t e r V I F F I m a g e % |
| 807 | % % |
| 808 | % % |
| 809 | % % |
| 810 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 811 | % |
| 812 | % UnregisterVIFFImage() removes format registrations made by the |
| 813 | % VIFF module from the list of supported formats. |
| 814 | % |
| 815 | % The format of the UnregisterVIFFImage method is: |
| 816 | % |
| 817 | % UnregisterVIFFImage(void) |
| 818 | % |
| 819 | */ |
| 820 | ModuleExport void UnregisterVIFFImage(void) |
| 821 | { |
| 822 | (void) UnregisterMagickInfo("VIFF"); |
| 823 | (void) UnregisterMagickInfo("XV"); |
| 824 | } |
| 825 | |
| 826 | /* |
| 827 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 828 | % % |
| 829 | % % |
| 830 | % % |
| 831 | % W r i t e V I F F I m a g e % |
| 832 | % % |
| 833 | % % |
| 834 | % % |
| 835 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 836 | % |
| 837 | % WriteVIFFImage() writes an image to a file in the VIFF image format. |
| 838 | % |
| 839 | % The format of the WriteVIFFImage method is: |
| 840 | % |
| 841 | % MagickBooleanType WriteVIFFImage(const ImageInfo *image_info, |
| 842 | % Image *image) |
| 843 | % |
| 844 | % A description of each parameter follows. |
| 845 | % |
| 846 | % o image_info: the image info. |
| 847 | % |
| 848 | % o image: The image. |
| 849 | % |
| 850 | */ |
| 851 | |
| 852 | static inline size_t MagickMin(const size_t x,const size_t y) |
| 853 | { |
| 854 | if (x < y) |
| 855 | return(x); |
| 856 | return(y); |
| 857 | } |
| 858 | |
| 859 | static MagickBooleanType WriteVIFFImage(const ImageInfo *image_info, |
| 860 | Image *image) |
| 861 | { |
| 862 | #define VFF_CM_genericRGB 15 |
| 863 | #define VFF_CM_NONE 0 |
| 864 | #define VFF_DEP_IEEEORDER 0x2 |
| 865 | #define VFF_DES_RAW 0 |
| 866 | #define VFF_LOC_IMPLICIT 1 |
| 867 | #define VFF_MAPTYP_NONE 0 |
| 868 | #define VFF_MAPTYP_1_BYTE 1 |
| 869 | #define VFF_MS_NONE 0 |
| 870 | #define VFF_MS_ONEPERBAND 1 |
| 871 | #define VFF_TYP_BIT 0 |
| 872 | #define VFF_TYP_1_BYTE 1 |
| 873 | |
| 874 | typedef struct _ViffInfo |
| 875 | { |
| 876 | char |
| 877 | identifier, |
| 878 | file_type, |
| 879 | release, |
| 880 | version, |
| 881 | machine_dependency, |
| 882 | reserve[3], |
| 883 | comment[512]; |
| 884 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 885 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 886 | rows, |
| 887 | columns, |
| 888 | subrows; |
| 889 | |
cristy | 5d89f43 | 2010-05-30 00:00:26 +0000 | [diff] [blame] | 890 | int |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 891 | x_offset, |
| 892 | y_offset; |
| 893 | |
| 894 | unsigned int |
| 895 | x_bits_per_pixel, |
cristy | 5d89f43 | 2010-05-30 00:00:26 +0000 | [diff] [blame] | 896 | y_bits_per_pixel, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 897 | location_type, |
| 898 | location_dimension, |
| 899 | number_of_images, |
| 900 | number_data_bands, |
| 901 | data_storage_type, |
| 902 | data_encode_scheme, |
| 903 | map_scheme, |
| 904 | map_storage_type, |
| 905 | map_rows, |
| 906 | map_columns, |
| 907 | map_subrows, |
| 908 | map_enable, |
| 909 | maps_per_cycle, |
| 910 | color_space_model; |
| 911 | } ViffInfo; |
| 912 | |
| 913 | const char |
| 914 | *value; |
| 915 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 916 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 917 | y; |
| 918 | |
| 919 | MagickBooleanType |
| 920 | status; |
| 921 | |
| 922 | MagickOffsetType |
| 923 | scene; |
| 924 | |
| 925 | MagickSizeType |
| 926 | number_pixels, |
| 927 | packets; |
| 928 | |
| 929 | register const IndexPacket |
| 930 | *indexes; |
| 931 | |
| 932 | register const PixelPacket |
| 933 | *p; |
| 934 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 935 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 936 | x; |
| 937 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 938 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 939 | i; |
| 940 | |
| 941 | register unsigned char |
| 942 | *q; |
| 943 | |
| 944 | unsigned char |
| 945 | buffer[8], |
| 946 | *viff_pixels; |
| 947 | |
| 948 | ViffInfo |
| 949 | viff_info; |
| 950 | |
| 951 | /* |
| 952 | Open output image file. |
| 953 | */ |
| 954 | assert(image_info != (const ImageInfo *) NULL); |
| 955 | assert(image_info->signature == MagickSignature); |
| 956 | assert(image != (Image *) NULL); |
| 957 | assert(image->signature == MagickSignature); |
| 958 | if (image->debug != MagickFalse) |
| 959 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 960 | status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); |
| 961 | if (status == MagickFalse) |
| 962 | return(status); |
| 963 | (void) ResetMagickMemory(&viff_info,0,sizeof(ViffInfo)); |
| 964 | scene=0; |
| 965 | do |
| 966 | { |
| 967 | /* |
| 968 | Initialize VIFF image structure. |
| 969 | */ |
| 970 | if (image->colorspace != RGBColorspace) |
| 971 | (void) TransformImageColorspace(image,RGBColorspace); |
| 972 | if (IsGrayImage(image,&image->exception) != MagickFalse) |
| 973 | (void) SetImageStorageClass(image,DirectClass); |
| 974 | viff_info.identifier=(char) 0xab; |
| 975 | viff_info.file_type=1; |
| 976 | viff_info.release=1; |
| 977 | viff_info.version=3; |
| 978 | viff_info.machine_dependency=VFF_DEP_IEEEORDER; /* IEEE byte ordering */ |
| 979 | *viff_info.comment='\0'; |
| 980 | value=GetImageProperty(image,"comment"); |
| 981 | if (value != (const char *) NULL) |
| 982 | (void) CopyMagickString(viff_info.comment,value,MagickMin(strlen(value),511)+1); |
| 983 | viff_info.rows=image->columns; |
| 984 | viff_info.columns=image->rows; |
| 985 | viff_info.subrows=0; |
| 986 | viff_info.x_offset=(~0); |
| 987 | viff_info.y_offset=(~0); |
| 988 | viff_info.x_bits_per_pixel=0; |
| 989 | viff_info.y_bits_per_pixel=0; |
| 990 | viff_info.location_type=VFF_LOC_IMPLICIT; |
| 991 | viff_info.location_dimension=0; |
| 992 | viff_info.number_of_images=1; |
| 993 | viff_info.data_encode_scheme=VFF_DES_RAW; |
| 994 | viff_info.map_scheme=VFF_MS_NONE; |
| 995 | viff_info.map_storage_type=VFF_MAPTYP_NONE; |
| 996 | viff_info.map_rows=0; |
| 997 | viff_info.map_columns=0; |
| 998 | viff_info.map_subrows=0; |
| 999 | viff_info.map_enable=1; /* no colormap */ |
| 1000 | viff_info.maps_per_cycle=0; |
| 1001 | number_pixels=(MagickSizeType) image->columns*image->rows; |
| 1002 | if (image->storage_class == DirectClass) |
| 1003 | { |
| 1004 | /* |
| 1005 | Full color VIFF raster. |
| 1006 | */ |
| 1007 | viff_info.number_data_bands=image->matte ? 4UL : 3UL; |
| 1008 | viff_info.color_space_model=VFF_CM_genericRGB; |
| 1009 | viff_info.data_storage_type=VFF_TYP_1_BYTE; |
| 1010 | packets=viff_info.number_data_bands*number_pixels; |
| 1011 | } |
| 1012 | else |
| 1013 | { |
| 1014 | viff_info.number_data_bands=1; |
| 1015 | viff_info.color_space_model=VFF_CM_NONE; |
| 1016 | viff_info.data_storage_type=VFF_TYP_1_BYTE; |
| 1017 | packets=number_pixels; |
| 1018 | if (IsGrayImage(image,&image->exception) == MagickFalse) |
| 1019 | { |
| 1020 | /* |
| 1021 | Colormapped VIFF raster. |
| 1022 | */ |
| 1023 | viff_info.map_scheme=VFF_MS_ONEPERBAND; |
| 1024 | viff_info.map_storage_type=VFF_MAPTYP_1_BYTE; |
| 1025 | viff_info.map_rows=3; |
cristy | 0b29b25 | 2010-05-30 01:59:46 +0000 | [diff] [blame] | 1026 | viff_info.map_columns=(unsigned int) image->colors; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1027 | } |
| 1028 | else |
| 1029 | if (image->colors <= 2) |
| 1030 | { |
| 1031 | /* |
| 1032 | Monochrome VIFF raster. |
| 1033 | */ |
| 1034 | viff_info.data_storage_type=VFF_TYP_BIT; |
| 1035 | packets=((image->columns+7) >> 3)*image->rows; |
| 1036 | } |
| 1037 | } |
| 1038 | /* |
| 1039 | Write VIFF image header (pad to 1024 bytes). |
| 1040 | */ |
| 1041 | buffer[0]=(unsigned char) viff_info.identifier; |
| 1042 | buffer[1]=(unsigned char) viff_info.file_type; |
| 1043 | buffer[2]=(unsigned char) viff_info.release; |
| 1044 | buffer[3]=(unsigned char) viff_info.version; |
| 1045 | buffer[4]=(unsigned char) viff_info.machine_dependency; |
| 1046 | buffer[5]=(unsigned char) viff_info.reserve[0]; |
| 1047 | buffer[6]=(unsigned char) viff_info.reserve[1]; |
| 1048 | buffer[7]=(unsigned char) viff_info.reserve[2]; |
| 1049 | (void) WriteBlob(image,8,buffer); |
| 1050 | (void) WriteBlob(image,512,(unsigned char *) viff_info.comment); |
cristy | 0b29b25 | 2010-05-30 01:59:46 +0000 | [diff] [blame] | 1051 | (void) WriteBlobMSBLong(image,(unsigned int) viff_info.rows); |
| 1052 | (void) WriteBlobMSBLong(image,(unsigned int) viff_info.columns); |
cristy | f6fe0a1 | 2010-05-30 00:44:47 +0000 | [diff] [blame] | 1053 | (void) WriteBlobMSBLong(image,(unsigned int) viff_info.subrows); |
| 1054 | (void) WriteBlobMSBLong(image,(unsigned int) viff_info.x_offset); |
| 1055 | (void) WriteBlobMSBLong(image,(unsigned int) viff_info.y_offset); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1056 | viff_info.x_bits_per_pixel=1U*(63 << 24) | (128 << 16); |
cristy | f6fe0a1 | 2010-05-30 00:44:47 +0000 | [diff] [blame] | 1057 | (void) WriteBlobMSBLong(image,(unsigned int) viff_info.x_bits_per_pixel); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1058 | viff_info.y_bits_per_pixel=1U*(63 << 24) | (128 << 16); |
cristy | f6fe0a1 | 2010-05-30 00:44:47 +0000 | [diff] [blame] | 1059 | (void) WriteBlobMSBLong(image,(unsigned int) viff_info.y_bits_per_pixel); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1060 | (void) WriteBlobMSBLong(image,viff_info.location_type); |
| 1061 | (void) WriteBlobMSBLong(image,viff_info.location_dimension); |
cristy | f6fe0a1 | 2010-05-30 00:44:47 +0000 | [diff] [blame] | 1062 | (void) WriteBlobMSBLong(image,(unsigned int) viff_info.number_of_images); |
| 1063 | (void) WriteBlobMSBLong(image,(unsigned int) viff_info.number_data_bands); |
| 1064 | (void) WriteBlobMSBLong(image,(unsigned int) viff_info.data_storage_type); |
| 1065 | (void) WriteBlobMSBLong(image,(unsigned int) viff_info.data_encode_scheme); |
| 1066 | (void) WriteBlobMSBLong(image,(unsigned int) viff_info.map_scheme); |
| 1067 | (void) WriteBlobMSBLong(image,(unsigned int) viff_info.map_storage_type); |
| 1068 | (void) WriteBlobMSBLong(image,(unsigned int) viff_info.map_rows); |
| 1069 | (void) WriteBlobMSBLong(image,(unsigned int) viff_info.map_columns); |
| 1070 | (void) WriteBlobMSBLong(image,(unsigned int) viff_info.map_subrows); |
| 1071 | (void) WriteBlobMSBLong(image,(unsigned int) viff_info.map_enable); |
| 1072 | (void) WriteBlobMSBLong(image,(unsigned int) viff_info.maps_per_cycle); |
| 1073 | (void) WriteBlobMSBLong(image,(unsigned int) viff_info.color_space_model); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1074 | for (i=0; i < 420; i++) |
| 1075 | (void) WriteBlobByte(image,'\0'); |
| 1076 | /* |
| 1077 | Convert MIFF to VIFF raster pixels. |
| 1078 | */ |
| 1079 | viff_pixels=(unsigned char *) AcquireQuantumMemory((size_t) packets, |
| 1080 | sizeof(*viff_pixels)); |
| 1081 | if (viff_pixels == (unsigned char *) NULL) |
| 1082 | ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
| 1083 | q=viff_pixels; |
| 1084 | if (image->storage_class == DirectClass) |
| 1085 | { |
| 1086 | /* |
| 1087 | Convert DirectClass packet to VIFF RGB pixel. |
| 1088 | */ |
| 1089 | number_pixels=(MagickSizeType) image->columns*image->rows; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1090 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1091 | { |
| 1092 | p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); |
| 1093 | if (p == (const PixelPacket *) NULL) |
| 1094 | break; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1095 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1096 | { |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1097 | *q=ScaleQuantumToChar(GetRedPixelComponent(p)); |
| 1098 | *(q+number_pixels)=ScaleQuantumToChar(GetGreenPixelComponent(p)); |
| 1099 | *(q+number_pixels*2)=ScaleQuantumToChar(GetBluePixelComponent(p)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1100 | if (image->matte != MagickFalse) |
| 1101 | *(q+number_pixels*3)=ScaleQuantumToChar((Quantum) |
cristy | 46f0820 | 2010-01-10 04:04:21 +0000 | [diff] [blame] | 1102 | (GetAlphaPixelComponent(p))); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1103 | p++; |
| 1104 | q++; |
| 1105 | } |
| 1106 | if (image->previous == (Image *) NULL) |
| 1107 | { |
cristy | cee9711 | 2010-05-28 00:44:52 +0000 | [diff] [blame] | 1108 | status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, |
| 1109 | image->rows); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1110 | if (status == MagickFalse) |
| 1111 | break; |
| 1112 | } |
| 1113 | } |
| 1114 | } |
| 1115 | else |
| 1116 | if (IsGrayImage(image,&image->exception) == MagickFalse) |
| 1117 | { |
| 1118 | unsigned char |
| 1119 | *viff_colormap; |
| 1120 | |
| 1121 | /* |
| 1122 | Dump colormap to file. |
| 1123 | */ |
| 1124 | viff_colormap=(unsigned char *) AcquireQuantumMemory(image->colors, |
| 1125 | 3*sizeof(*viff_colormap)); |
| 1126 | if (viff_colormap == (unsigned char *) NULL) |
| 1127 | ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
| 1128 | q=viff_colormap; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1129 | for (i=0; i < (ssize_t) image->colors; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1130 | *q++=ScaleQuantumToChar(image->colormap[i].red); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1131 | for (i=0; i < (ssize_t) image->colors; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1132 | *q++=ScaleQuantumToChar(image->colormap[i].green); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1133 | for (i=0; i < (ssize_t) image->colors; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1134 | *q++=ScaleQuantumToChar(image->colormap[i].blue); |
| 1135 | (void) WriteBlob(image,3*image->colors,viff_colormap); |
| 1136 | viff_colormap=(unsigned char *) RelinquishMagickMemory(viff_colormap); |
| 1137 | /* |
| 1138 | Convert PseudoClass packet to VIFF colormapped pixels. |
| 1139 | */ |
| 1140 | q=viff_pixels; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1141 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1142 | { |
| 1143 | p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); |
| 1144 | if (p == (const PixelPacket *) NULL) |
| 1145 | break; |
| 1146 | indexes=GetVirtualIndexQueue(image); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1147 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1148 | *q++=(unsigned char) indexes[x]; |
| 1149 | if (image->previous == (Image *) NULL) |
| 1150 | { |
cristy | cee9711 | 2010-05-28 00:44:52 +0000 | [diff] [blame] | 1151 | status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, |
| 1152 | image->rows); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1153 | if (status == MagickFalse) |
| 1154 | break; |
| 1155 | } |
| 1156 | } |
| 1157 | } |
| 1158 | else |
| 1159 | if (image->colors <= 2) |
| 1160 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1161 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1162 | x, |
| 1163 | y; |
| 1164 | |
| 1165 | register unsigned char |
| 1166 | bit, |
| 1167 | byte; |
| 1168 | |
| 1169 | /* |
| 1170 | Convert PseudoClass image to a VIFF monochrome image. |
| 1171 | */ |
| 1172 | (void) SetImageType(image,BilevelType); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1173 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1174 | { |
| 1175 | p=GetVirtualPixels(image,0,y,image->columns,1, |
| 1176 | &image->exception); |
| 1177 | if (p == (const PixelPacket *) NULL) |
| 1178 | break; |
| 1179 | indexes=GetVirtualIndexQueue(image); |
| 1180 | bit=0; |
| 1181 | byte=0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1182 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1183 | { |
| 1184 | byte>>=1; |
| 1185 | if (PixelIntensity(p) < ((MagickRealType) QuantumRange/2.0)) |
| 1186 | byte|=0x80; |
| 1187 | bit++; |
| 1188 | if (bit == 8) |
| 1189 | { |
| 1190 | *q++=byte; |
| 1191 | bit=0; |
| 1192 | byte=0; |
| 1193 | } |
| 1194 | } |
| 1195 | if (bit != 0) |
| 1196 | *q++=byte >> (8-bit); |
| 1197 | if (image->previous == (Image *) NULL) |
| 1198 | { |
cristy | 5d89f43 | 2010-05-30 00:00:26 +0000 | [diff] [blame] | 1199 | status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) |
| 1200 | y,image->rows); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1201 | if (status == MagickFalse) |
| 1202 | break; |
| 1203 | } |
| 1204 | } |
| 1205 | } |
| 1206 | else |
| 1207 | { |
| 1208 | /* |
| 1209 | Convert PseudoClass packet to VIFF grayscale pixel. |
| 1210 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1211 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1212 | { |
| 1213 | p=GetVirtualPixels(image,0,y,image->columns,1, |
| 1214 | &image->exception); |
| 1215 | if (p == (const PixelPacket *) NULL) |
| 1216 | break; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1217 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1218 | { |
| 1219 | *q++=(unsigned char) PixelIntensityToQuantum(p); |
| 1220 | p++; |
| 1221 | } |
| 1222 | if (image->previous == (Image *) NULL) |
| 1223 | { |
cristy | 5d89f43 | 2010-05-30 00:00:26 +0000 | [diff] [blame] | 1224 | status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) |
| 1225 | y,image->rows); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1226 | if (status == MagickFalse) |
| 1227 | break; |
| 1228 | } |
| 1229 | } |
| 1230 | } |
| 1231 | (void) WriteBlob(image,(size_t) packets,viff_pixels); |
| 1232 | viff_pixels=(unsigned char *) RelinquishMagickMemory(viff_pixels); |
| 1233 | if (GetNextImageInList(image) == (Image *) NULL) |
| 1234 | break; |
| 1235 | image=SyncNextImageInList(image); |
| 1236 | status=SetImageProgress(image,SaveImagesTag,scene++, |
| 1237 | GetImageListLength(image)); |
| 1238 | if (status == MagickFalse) |
| 1239 | break; |
| 1240 | } while (image_info->adjoin != MagickFalse); |
| 1241 | (void) CloseBlob(image); |
| 1242 | return(MagickTrue); |
| 1243 | } |