cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1 | /* |
| 2 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3 | % % |
| 4 | % % |
| 5 | % M M AAA TTTTT L AAA BBBB % |
| 6 | % MM MM A A T L A A B B % |
| 7 | % M M M AAAAA T L AAAAA BBBB % |
| 8 | % M M A A T L A A B B % |
| 9 | % M M A A T LLLLL A A BBBB % |
| 10 | % % |
| 11 | % % |
| 12 | % Read MATLAB Image Format % |
| 13 | % % |
| 14 | % Software Design % |
| 15 | % Jaroslav Fojtik % |
| 16 | % 2001-2008 % |
| 17 | % % |
| 18 | % % |
| 19 | % Permission is hereby granted, free of charge, to any person obtaining a % |
| 20 | % copy of this software and associated documentation files ("ImageMagick"), % |
| 21 | % to deal in ImageMagick without restriction, including without limitation % |
| 22 | % the rights to use, copy, modify, merge, publish, distribute, sublicense, % |
| 23 | % and/or sell copies of ImageMagick, and to permit persons to whom the % |
| 24 | % ImageMagick is furnished to do so, subject to the following conditions: % |
| 25 | % % |
| 26 | % The above copyright notice and this permission notice shall be included in % |
| 27 | % all copies or substantial portions of ImageMagick. % |
| 28 | % % |
| 29 | % The software is provided "as is", without warranty of any kind, express or % |
| 30 | % implied, including but not limited to the warranties of merchantability, % |
| 31 | % fitness for a particular purpose and noninfringement. In no event shall % |
| 32 | % ImageMagick Studio be liable for any claim, damages or other liability, % |
| 33 | % whether in an action of contract, tort or otherwise, arising from, out of % |
| 34 | % or in connection with ImageMagick or the use or other dealings in % |
| 35 | % ImageMagick. % |
| 36 | % % |
| 37 | % Except as contained in this notice, the name of the ImageMagick Studio % |
| 38 | % shall not be used in advertising or otherwise to promote the sale, use or % |
| 39 | % other dealings in ImageMagick without prior written authorization from the % |
| 40 | % ImageMagick Studio. % |
| 41 | % % |
| 42 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 43 | % |
| 44 | % |
| 45 | */ |
| 46 | |
| 47 | /* |
| 48 | Include declarations. |
| 49 | */ |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 50 | #include "MagickCore/studio.h" |
| 51 | #include "MagickCore/attribute.h" |
| 52 | #include "MagickCore/blob.h" |
| 53 | #include "MagickCore/blob-private.h" |
| 54 | #include "MagickCore/cache.h" |
| 55 | #include "MagickCore/color-private.h" |
| 56 | #include "MagickCore/colormap.h" |
cristy | 510d06a | 2011-07-06 23:43:54 +0000 | [diff] [blame] | 57 | #include "MagickCore/colorspace-private.h" |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 58 | #include "MagickCore/exception.h" |
| 59 | #include "MagickCore/exception-private.h" |
| 60 | #include "MagickCore/image.h" |
| 61 | #include "MagickCore/image-private.h" |
| 62 | #include "MagickCore/list.h" |
| 63 | #include "MagickCore/magick.h" |
| 64 | #include "MagickCore/memory_.h" |
| 65 | #include "MagickCore/monitor.h" |
| 66 | #include "MagickCore/monitor-private.h" |
| 67 | #include "MagickCore/pixel-accessor.h" |
| 68 | #include "MagickCore/quantum-private.h" |
| 69 | #include "MagickCore/option.h" |
| 70 | #include "MagickCore/pixel.h" |
| 71 | #include "MagickCore/resource_.h" |
| 72 | #include "MagickCore/shear.h" |
| 73 | #include "MagickCore/static.h" |
| 74 | #include "MagickCore/string_.h" |
| 75 | #include "MagickCore/module.h" |
| 76 | #include "MagickCore/transform.h" |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 77 | #if defined(MAGICKCORE_ZLIB_DELEGATE) |
| 78 | #include "zlib.h" |
| 79 | #endif |
| 80 | |
| 81 | /* |
| 82 | Forward declaration. |
| 83 | */ |
| 84 | static MagickBooleanType |
| 85 | WriteMATImage(const ImageInfo *,Image *); |
| 86 | |
| 87 | |
| 88 | /* Auto coloring method, sorry this creates some artefact inside data |
| 89 | MinReal+j*MaxComplex = red MaxReal+j*MaxComplex = black |
| 90 | MinReal+j*0 = white MaxReal+j*0 = black |
| 91 | MinReal+j*MinComplex = blue MaxReal+j*MinComplex = black |
| 92 | */ |
| 93 | |
| 94 | typedef struct |
| 95 | { |
| 96 | char identific[124]; |
| 97 | unsigned short Version; |
| 98 | char EndianIndicator[2]; |
cristy | f6fe0a1 | 2010-05-30 00:44:47 +0000 | [diff] [blame] | 99 | unsigned long DataType; |
| 100 | unsigned long ObjectSize; |
| 101 | unsigned long unknown1; |
| 102 | unsigned long unknown2; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 103 | |
| 104 | unsigned short unknown5; |
| 105 | unsigned char StructureFlag; |
| 106 | unsigned char StructureClass; |
cristy | f6fe0a1 | 2010-05-30 00:44:47 +0000 | [diff] [blame] | 107 | unsigned long unknown3; |
| 108 | unsigned long unknown4; |
| 109 | unsigned long DimFlag; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 110 | |
cristy | f6fe0a1 | 2010-05-30 00:44:47 +0000 | [diff] [blame] | 111 | unsigned long SizeX; |
| 112 | unsigned long SizeY; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 113 | unsigned short Flag1; |
| 114 | unsigned short NameFlag; |
| 115 | } |
| 116 | MATHeader; |
| 117 | |
| 118 | static const char *MonthsTab[12]={"Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"}; |
| 119 | static const char *DayOfWTab[7]={"Sun","Mon","Tue","Wed","Thu","Fri","Sat"}; |
| 120 | static const char *OsDesc= |
| 121 | #ifdef __WIN32__ |
| 122 | "PCWIN"; |
| 123 | #else |
| 124 | #ifdef __APPLE__ |
| 125 | "MAC"; |
| 126 | #else |
| 127 | "LNX86"; |
| 128 | #endif |
| 129 | #endif |
| 130 | |
| 131 | typedef enum |
| 132 | { |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 133 | miINT8 = 1, /* 8 bit signed */ |
| 134 | miUINT8, /* 8 bit unsigned */ |
| 135 | miINT16, /* 16 bit signed */ |
| 136 | miUINT16, /* 16 bit unsigned */ |
| 137 | miINT32, /* 32 bit signed */ |
| 138 | miUINT32, /* 32 bit unsigned */ |
| 139 | miSINGLE, /* IEEE 754 single precision float */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 140 | miRESERVE1, |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 141 | miDOUBLE, /* IEEE 754 double precision float */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 142 | miRESERVE2, |
| 143 | miRESERVE3, |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 144 | miINT64, /* 64 bit signed */ |
| 145 | miUINT64, /* 64 bit unsigned */ |
| 146 | miMATRIX, /* MATLAB array */ |
| 147 | miCOMPRESSED, /* Compressed Data */ |
| 148 | miUTF8, /* Unicode UTF-8 Encoded Character Data */ |
| 149 | miUTF16, /* Unicode UTF-16 Encoded Character Data */ |
| 150 | miUTF32 /* Unicode UTF-32 Encoded Character Data */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 151 | } mat5_data_type; |
| 152 | |
| 153 | typedef enum |
| 154 | { |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 155 | mxCELL_CLASS=1, /* cell array */ |
| 156 | mxSTRUCT_CLASS, /* structure */ |
| 157 | mxOBJECT_CLASS, /* object */ |
| 158 | mxCHAR_CLASS, /* character array */ |
| 159 | mxSPARSE_CLASS, /* sparse array */ |
| 160 | mxDOUBLE_CLASS, /* double precision array */ |
| 161 | mxSINGLE_CLASS, /* single precision floating point */ |
| 162 | mxINT8_CLASS, /* 8 bit signed integer */ |
| 163 | mxUINT8_CLASS, /* 8 bit unsigned integer */ |
| 164 | mxINT16_CLASS, /* 16 bit signed integer */ |
| 165 | mxUINT16_CLASS, /* 16 bit unsigned integer */ |
| 166 | mxINT32_CLASS, /* 32 bit signed integer */ |
| 167 | mxUINT32_CLASS, /* 32 bit unsigned integer */ |
| 168 | mxINT64_CLASS, /* 64 bit signed integer */ |
| 169 | mxUINT64_CLASS, /* 64 bit unsigned integer */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 170 | mxFUNCTION_CLASS /* Function handle */ |
| 171 | } arrayclasstype; |
| 172 | |
| 173 | #define FLAG_COMPLEX 0x8 |
| 174 | #define FLAG_GLOBAL 0x4 |
| 175 | #define FLAG_LOGICAL 0x2 |
| 176 | |
| 177 | static const QuantumType z2qtype[4] = {GrayQuantum, BlueQuantum, GreenQuantum, RedQuantum}; |
| 178 | |
| 179 | |
| 180 | static void InsertComplexDoubleRow(double *p, int y, Image * image, double MinVal, |
| 181 | double MaxVal) |
| 182 | { |
| 183 | ExceptionInfo |
| 184 | *exception; |
| 185 | |
| 186 | double f; |
| 187 | int x; |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 188 | register Quantum *q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 189 | |
| 190 | if (MinVal == 0) |
| 191 | MinVal = -1; |
| 192 | if (MaxVal == 0) |
| 193 | MaxVal = 1; |
| 194 | |
| 195 | exception=(&image->exception); |
cristy | 524222d | 2011-04-25 00:37:06 +0000 | [diff] [blame] | 196 | q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 197 | if (q == (const Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 198 | return; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 199 | for (x = 0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 200 | { |
| 201 | if (*p > 0) |
| 202 | { |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 203 | f = (*p / MaxVal) * (QuantumRange-GetPixelRed(image,q)); |
| 204 | if (f + GetPixelRed(image,q) > QuantumRange) |
| 205 | SetPixelRed(image,QuantumRange,q); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 206 | else |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 207 | SetPixelRed(image,GetPixelRed(image,q)+(int) f,q); |
| 208 | if ((int) f / 2.0 > GetPixelGreen(image,q)) |
cristy | 524222d | 2011-04-25 00:37:06 +0000 | [diff] [blame] | 209 | { |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 210 | SetPixelGreen(image,0,q); |
| 211 | SetPixelBlue(image,0,q); |
cristy | 524222d | 2011-04-25 00:37:06 +0000 | [diff] [blame] | 212 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 213 | else |
cristy | 524222d | 2011-04-25 00:37:06 +0000 | [diff] [blame] | 214 | { |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 215 | SetPixelBlue(image,GetPixelBlue(image,q)-(int) (f/2.0),q); |
| 216 | SetPixelGreen(image,GetPixelBlue(image,q),q); |
cristy | 524222d | 2011-04-25 00:37:06 +0000 | [diff] [blame] | 217 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 218 | } |
| 219 | if (*p < 0) |
| 220 | { |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 221 | f = (*p / MaxVal) * (QuantumRange-GetPixelBlue(image,q)); |
| 222 | if (f+GetPixelBlue(image,q) > QuantumRange) |
| 223 | SetPixelBlue(image,QuantumRange,q); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 224 | else |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 225 | SetPixelBlue(image,GetPixelBlue(image,q)+(int) f,q); |
| 226 | if ((int) f / 2.0 > GetPixelGreen(image,q)) |
cristy | 524222d | 2011-04-25 00:37:06 +0000 | [diff] [blame] | 227 | { |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 228 | SetPixelRed(image,0,q); |
| 229 | SetPixelGreen(image,0,q); |
cristy | 524222d | 2011-04-25 00:37:06 +0000 | [diff] [blame] | 230 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 231 | else |
cristy | 524222d | 2011-04-25 00:37:06 +0000 | [diff] [blame] | 232 | { |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 233 | SetPixelRed(image,GetPixelRed(image,q)-(int) (f/2.0),q); |
| 234 | SetPixelGreen(image,GetPixelRed(image,q),q); |
cristy | 524222d | 2011-04-25 00:37:06 +0000 | [diff] [blame] | 235 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 236 | } |
| 237 | p++; |
cristy | ed23157 | 2011-07-14 02:18:59 +0000 | [diff] [blame] | 238 | q+=GetPixelChannels(image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 239 | } |
| 240 | if (!SyncAuthenticPixels(image,exception)) |
| 241 | return; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 242 | return; |
| 243 | } |
| 244 | |
| 245 | |
| 246 | static void InsertComplexFloatRow(float *p, int y, Image * image, double MinVal, |
| 247 | double MaxVal) |
| 248 | { |
| 249 | ExceptionInfo |
| 250 | *exception; |
| 251 | |
| 252 | double f; |
| 253 | int x; |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 254 | register Quantum *q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 255 | |
| 256 | if (MinVal == 0) |
| 257 | MinVal = -1; |
| 258 | if (MaxVal == 0) |
| 259 | MaxVal = 1; |
| 260 | |
| 261 | exception=(&image->exception); |
| 262 | q = QueueAuthenticPixels(image, 0, y, image->columns, 1,exception); |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 263 | if (q == (const Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 264 | return; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 265 | for (x = 0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 266 | { |
| 267 | if (*p > 0) |
| 268 | { |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 269 | f = (*p / MaxVal) * (QuantumRange-GetPixelRed(image,q)); |
| 270 | if (f+GetPixelRed(image,q) > QuantumRange) |
| 271 | SetPixelRed(image,QuantumRange,q); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 272 | else |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 273 | SetPixelRed(image,GetPixelRed(image,q)+(int) f,q); |
| 274 | if ((int) f / 2.0 > GetPixelGreen(image,q)) |
cristy | 524222d | 2011-04-25 00:37:06 +0000 | [diff] [blame] | 275 | { |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 276 | SetPixelGreen(image,0,q); |
| 277 | SetPixelBlue(image,0,q); |
cristy | 524222d | 2011-04-25 00:37:06 +0000 | [diff] [blame] | 278 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 279 | else |
cristy | 524222d | 2011-04-25 00:37:06 +0000 | [diff] [blame] | 280 | { |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 281 | SetPixelBlue(image,GetPixelBlue(image,q)-(int) (f/2.0),q); |
| 282 | SetPixelGreen(image,GetPixelBlue(image,q),q); |
cristy | 524222d | 2011-04-25 00:37:06 +0000 | [diff] [blame] | 283 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 284 | } |
| 285 | if (*p < 0) |
| 286 | { |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 287 | f = (*p / MaxVal) * (QuantumRange - GetPixelBlue(image,q)); |
| 288 | if (f + GetPixelBlue(image,q) > QuantumRange) |
| 289 | SetPixelBlue(image,QuantumRange,q); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 290 | else |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 291 | SetPixelBlue(image,GetPixelBlue(image,q)+ |
| 292 | (int) f,q); |
| 293 | if ((int) f / 2.0 > GetPixelGreen(image,q)) |
cristy | 524222d | 2011-04-25 00:37:06 +0000 | [diff] [blame] | 294 | { |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 295 | SetPixelGreen(image,0,q); |
| 296 | SetPixelRed(image,0,q); |
cristy | 524222d | 2011-04-25 00:37:06 +0000 | [diff] [blame] | 297 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 298 | else |
cristy | 524222d | 2011-04-25 00:37:06 +0000 | [diff] [blame] | 299 | { |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 300 | SetPixelRed(image,GetPixelRed(image,q)-(int) (f/2.0),q); |
| 301 | SetPixelGreen(image,GetPixelRed(image,q),q); |
cristy | 524222d | 2011-04-25 00:37:06 +0000 | [diff] [blame] | 302 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 303 | } |
| 304 | p++; |
| 305 | q++; |
| 306 | } |
| 307 | if (!SyncAuthenticPixels(image,exception)) |
| 308 | return; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 309 | return; |
| 310 | } |
| 311 | |
| 312 | |
| 313 | /************** READERS ******************/ |
| 314 | |
| 315 | /* This function reads one block of floats*/ |
| 316 | static void ReadBlobFloatsLSB(Image * image, size_t len, float *data) |
| 317 | { |
| 318 | while (len >= 4) |
| 319 | { |
| 320 | *data++ = ReadBlobFloat(image); |
| 321 | len -= sizeof(float); |
| 322 | } |
| 323 | if (len > 0) |
| 324 | (void) SeekBlob(image, len, SEEK_CUR); |
| 325 | } |
| 326 | |
| 327 | static void ReadBlobFloatsMSB(Image * image, size_t len, float *data) |
| 328 | { |
| 329 | while (len >= 4) |
| 330 | { |
| 331 | *data++ = ReadBlobFloat(image); |
| 332 | len -= sizeof(float); |
| 333 | } |
| 334 | if (len > 0) |
| 335 | (void) SeekBlob(image, len, SEEK_CUR); |
| 336 | } |
| 337 | |
| 338 | /* This function reads one block of doubles*/ |
| 339 | static void ReadBlobDoublesLSB(Image * image, size_t len, double *data) |
| 340 | { |
| 341 | while (len >= 8) |
| 342 | { |
| 343 | *data++ = ReadBlobDouble(image); |
| 344 | len -= sizeof(double); |
| 345 | } |
| 346 | if (len > 0) |
| 347 | (void) SeekBlob(image, len, SEEK_CUR); |
| 348 | } |
| 349 | |
| 350 | static void ReadBlobDoublesMSB(Image * image, size_t len, double *data) |
| 351 | { |
| 352 | while (len >= 8) |
| 353 | { |
| 354 | *data++ = ReadBlobDouble(image); |
| 355 | len -= sizeof(double); |
| 356 | } |
| 357 | if (len > 0) |
| 358 | (void) SeekBlob(image, len, SEEK_CUR); |
| 359 | } |
| 360 | |
| 361 | /* Calculate minimum and maximum from a given block of data */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 362 | static void CalcMinMax(Image *image, int endian_indicator, int SizeX, int SizeY, size_t CellType, unsigned ldblk, void *BImgBuff, double *Min, double *Max) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 363 | { |
| 364 | MagickOffsetType filepos; |
| 365 | int i, x; |
| 366 | void (*ReadBlobDoublesXXX)(Image * image, size_t len, double *data); |
| 367 | void (*ReadBlobFloatsXXX)(Image * image, size_t len, float *data); |
| 368 | double *dblrow; |
| 369 | float *fltrow; |
| 370 | |
| 371 | if (endian_indicator == LSBEndian) |
| 372 | { |
| 373 | ReadBlobDoublesXXX = ReadBlobDoublesLSB; |
| 374 | ReadBlobFloatsXXX = ReadBlobFloatsLSB; |
| 375 | } |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 376 | else /* MI */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 377 | { |
| 378 | ReadBlobDoublesXXX = ReadBlobDoublesMSB; |
| 379 | ReadBlobFloatsXXX = ReadBlobFloatsMSB; |
| 380 | } |
| 381 | |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 382 | filepos = TellBlob(image); /* Please note that file seeking occurs only in the case of doubles */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 383 | for (i = 0; i < SizeY; i++) |
| 384 | { |
| 385 | if (CellType==miDOUBLE) |
| 386 | { |
| 387 | ReadBlobDoublesXXX(image, ldblk, (double *)BImgBuff); |
| 388 | dblrow = (double *)BImgBuff; |
| 389 | if (i == 0) |
| 390 | { |
| 391 | *Min = *Max = *dblrow; |
| 392 | } |
| 393 | for (x = 0; x < SizeX; x++) |
| 394 | { |
| 395 | if (*Min > *dblrow) |
| 396 | *Min = *dblrow; |
| 397 | if (*Max < *dblrow) |
| 398 | *Max = *dblrow; |
| 399 | dblrow++; |
| 400 | } |
| 401 | } |
| 402 | if (CellType==miSINGLE) |
| 403 | { |
| 404 | ReadBlobFloatsXXX(image, ldblk, (float *)BImgBuff); |
| 405 | fltrow = (float *)BImgBuff; |
| 406 | if (i == 0) |
| 407 | { |
| 408 | *Min = *Max = *fltrow; |
| 409 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 410 | for (x = 0; x < (ssize_t) SizeX; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 411 | { |
| 412 | if (*Min > *fltrow) |
| 413 | *Min = *fltrow; |
| 414 | if (*Max < *fltrow) |
| 415 | *Max = *fltrow; |
| 416 | fltrow++; |
| 417 | } |
| 418 | } |
| 419 | } |
| 420 | (void) SeekBlob(image, filepos, SEEK_SET); |
| 421 | } |
| 422 | |
| 423 | |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 424 | static void FixSignedValues(const Image *image,Quantum *q, int y) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 425 | { |
| 426 | while(y-->0) |
| 427 | { |
| 428 | /* Please note that negative values will overflow |
| 429 | Q=8; QuantumRange=255: <0;127> + 127+1 = <128; 255> |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 430 | <-1;-128> + 127+1 = <0; 127> */ |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 431 | SetPixelRed(image,GetPixelRed(image,q)+QuantumRange/2+1,q); |
| 432 | SetPixelGreen(image,GetPixelGreen(image,q)+QuantumRange/2+1,q); |
| 433 | SetPixelBlue(image,GetPixelBlue(image,q)+QuantumRange/2+1,q); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 434 | q++; |
| 435 | } |
| 436 | } |
| 437 | |
| 438 | |
| 439 | /** Fix whole row of logical/binary data. It means pack it. */ |
| 440 | static void FixLogical(unsigned char *Buff,int ldblk) |
| 441 | { |
| 442 | unsigned char mask=128; |
| 443 | unsigned char *BuffL = Buff; |
| 444 | unsigned char val = 0; |
| 445 | |
| 446 | while(ldblk-->0) |
| 447 | { |
| 448 | if(*Buff++ != 0) |
| 449 | val |= mask; |
| 450 | |
| 451 | mask >>= 1; |
| 452 | if(mask==0) |
| 453 | { |
| 454 | *BuffL++ = val; |
| 455 | val = 0; |
| 456 | mask = 128; |
| 457 | } |
| 458 | |
| 459 | } |
| 460 | *BuffL = val; |
| 461 | } |
| 462 | |
| 463 | #if defined(MAGICKCORE_ZLIB_DELEGATE) |
| 464 | static voidpf AcquireZIPMemory(voidpf context,unsigned int items, |
| 465 | unsigned int size) |
| 466 | { |
| 467 | (void) context; |
| 468 | return((voidpf) AcquireQuantumMemory(items,size)); |
| 469 | } |
| 470 | |
| 471 | static void RelinquishZIPMemory(voidpf context,voidpf memory) |
| 472 | { |
| 473 | (void) context; |
| 474 | memory=RelinquishMagickMemory(memory); |
| 475 | } |
| 476 | #endif |
| 477 | |
cristy | 0906b14 | 2011-02-21 01:10:00 +0000 | [diff] [blame] | 478 | #if defined(MAGICKCORE_ZLIB_DELEGATE) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 479 | /** This procedure decompreses an image block for a new MATLAB format. */ |
| 480 | static Image *DecompressBlock(Image *orig, MagickOffsetType Size, ImageInfo *clone_info, ExceptionInfo *exception) |
| 481 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 482 | |
| 483 | Image *image2; |
| 484 | void *CacheBlock, *DecompressBlock; |
| 485 | z_stream zip_info; |
| 486 | FILE *mat_file; |
| 487 | size_t magick_size; |
cristy | 95236b5 | 2009-12-30 21:56:45 +0000 | [diff] [blame] | 488 | size_t extent; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 489 | |
| 490 | int status; |
| 491 | |
| 492 | if(clone_info==NULL) return NULL; |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 493 | if(clone_info->file) /* Close file opened from previous transaction. */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 494 | { |
| 495 | fclose(clone_info->file); |
| 496 | clone_info->file = NULL; |
| 497 | (void) unlink(clone_info->filename); |
| 498 | } |
| 499 | |
| 500 | CacheBlock = AcquireQuantumMemory((size_t)((Size<16384)?Size:16384),sizeof(unsigned char *)); |
| 501 | if(CacheBlock==NULL) return NULL; |
| 502 | DecompressBlock = AcquireQuantumMemory((size_t)(4096),sizeof(unsigned char *)); |
| 503 | if(DecompressBlock==NULL) |
| 504 | { |
| 505 | RelinquishMagickMemory(CacheBlock); |
| 506 | return NULL; |
| 507 | } |
| 508 | |
| 509 | mat_file = fdopen(AcquireUniqueFileResource(clone_info->filename),"w"); |
| 510 | if(!mat_file) |
| 511 | { |
| 512 | RelinquishMagickMemory(CacheBlock); |
| 513 | RelinquishMagickMemory(DecompressBlock); |
| 514 | (void) LogMagickEvent(CoderEvent,GetMagickModule(),"Gannot create file stream for PS image"); |
| 515 | return NULL; |
| 516 | } |
| 517 | |
| 518 | zip_info.zalloc=AcquireZIPMemory; |
| 519 | zip_info.zfree=RelinquishZIPMemory; |
| 520 | zip_info.opaque = (voidpf) NULL; |
| 521 | inflateInit(&zip_info); |
| 522 | /* zip_info.next_out = 8*4;*/ |
| 523 | |
| 524 | zip_info.avail_in = 0; |
| 525 | zip_info.total_out = 0; |
| 526 | while(Size>0 && !EOFBlob(orig)) |
| 527 | { |
| 528 | magick_size = ReadBlob(orig, (Size<16384)?Size:16384, (unsigned char *) CacheBlock); |
| 529 | zip_info.next_in = (Bytef *) CacheBlock; |
| 530 | zip_info.avail_in = (uInt) magick_size; |
| 531 | |
| 532 | while(zip_info.avail_in>0) |
| 533 | { |
| 534 | zip_info.avail_out = 4096; |
| 535 | zip_info.next_out = (Bytef *) DecompressBlock; |
| 536 | status = inflate(&zip_info,Z_NO_FLUSH); |
cristy | 95236b5 | 2009-12-30 21:56:45 +0000 | [diff] [blame] | 537 | extent=fwrite(DecompressBlock, 4096-zip_info.avail_out, 1, mat_file); |
cristy | da16f16 | 2011-02-19 23:52:17 +0000 | [diff] [blame] | 538 | (void) extent; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 539 | |
| 540 | if(status == Z_STREAM_END) goto DblBreak; |
| 541 | } |
| 542 | |
| 543 | Size -= magick_size; |
| 544 | } |
| 545 | DblBreak: |
| 546 | |
| 547 | (void)fclose(mat_file); |
| 548 | RelinquishMagickMemory(CacheBlock); |
| 549 | RelinquishMagickMemory(DecompressBlock); |
| 550 | |
| 551 | if((clone_info->file=fopen(clone_info->filename,"rb"))==NULL) goto UnlinkFile; |
| 552 | if( (image2 = AcquireImage(clone_info))==NULL ) goto EraseFile; |
| 553 | status = OpenBlob(clone_info,image2,ReadBinaryBlobMode,exception); |
| 554 | if (status == MagickFalse) |
| 555 | { |
| 556 | DeleteImageFromList(&image2); |
| 557 | EraseFile: |
| 558 | fclose(clone_info->file); |
| 559 | clone_info->file = NULL; |
| 560 | UnlinkFile: |
| 561 | (void) unlink(clone_info->filename); |
| 562 | return NULL; |
| 563 | } |
| 564 | |
| 565 | return image2; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 566 | } |
cristy | 0906b14 | 2011-02-21 01:10:00 +0000 | [diff] [blame] | 567 | #endif |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 568 | |
| 569 | /* |
| 570 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 571 | % % |
| 572 | % % |
| 573 | % % |
| 574 | % R e a d M A T L A B i m a g e % |
| 575 | % % |
| 576 | % % |
| 577 | % % |
| 578 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 579 | % |
| 580 | % ReadMATImage() reads an MAT X image file and returns it. It |
| 581 | % allocates the memory necessary for the new Image structure and returns a |
| 582 | % pointer to the new image. |
| 583 | % |
| 584 | % The format of the ReadMATImage method is: |
| 585 | % |
| 586 | % Image *ReadMATImage(const ImageInfo *image_info,ExceptionInfo *exception) |
| 587 | % |
| 588 | % A description of each parameter follows: |
| 589 | % |
| 590 | % o image: Method ReadMATImage returns a pointer to the image after |
| 591 | % reading. A null image is returned if there is a memory shortage or if |
| 592 | % the image cannot be read. |
| 593 | % |
| 594 | % o image_info: Specifies a pointer to a ImageInfo structure. |
| 595 | % |
| 596 | % o exception: return any errors or warnings in this structure. |
| 597 | % |
| 598 | */ |
| 599 | |
| 600 | static inline size_t MagickMin(const size_t x,const size_t y) |
| 601 | { |
| 602 | if (x < y) |
| 603 | return(x); |
| 604 | return(y); |
| 605 | } |
| 606 | |
| 607 | static Image *ReadMATImage(const ImageInfo *image_info,ExceptionInfo *exception) |
| 608 | { |
| 609 | Image *image, *image2=NULL, |
| 610 | *rotated_image; |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 611 | register Quantum *q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 612 | |
| 613 | unsigned int status; |
| 614 | MATHeader MATLAB_HDR; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 615 | size_t size; |
| 616 | size_t CellType; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 617 | QuantumInfo *quantum_info; |
| 618 | ImageInfo *clone_info; |
| 619 | int i; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 620 | ssize_t ldblk; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 621 | unsigned char *BImgBuff = NULL; |
| 622 | double MinVal, MaxVal; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 623 | size_t Unknown6; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 624 | unsigned z; |
| 625 | int logging; |
| 626 | int sample_size; |
| 627 | MagickOffsetType filepos=0x80; |
| 628 | BlobInfo *blob; |
cristy | eaedf06 | 2010-05-29 22:36:02 +0000 | [diff] [blame] | 629 | size_t one; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 630 | |
| 631 | unsigned int (*ReadBlobXXXLong)(Image *image); |
| 632 | unsigned short (*ReadBlobXXXShort)(Image *image); |
| 633 | void (*ReadBlobDoublesXXX)(Image * image, size_t len, double *data); |
| 634 | void (*ReadBlobFloatsXXX)(Image * image, size_t len, float *data); |
| 635 | |
| 636 | |
| 637 | assert(image_info != (const ImageInfo *) NULL); |
| 638 | assert(image_info->signature == MagickSignature); |
| 639 | assert(exception != (ExceptionInfo *) NULL); |
| 640 | assert(exception->signature == MagickSignature); |
| 641 | logging = LogMagickEvent(CoderEvent,GetMagickModule(),"enter"); |
| 642 | |
| 643 | /* |
| 644 | Open image file. |
| 645 | */ |
| 646 | image = AcquireImage(image_info); |
| 647 | |
| 648 | status = OpenBlob(image_info, image, ReadBinaryBlobMode, exception); |
| 649 | if (status == MagickFalse) |
| 650 | { |
| 651 | image=DestroyImageList(image); |
| 652 | return((Image *) NULL); |
| 653 | } |
| 654 | /* |
| 655 | Read MATLAB image. |
| 656 | */ |
| 657 | clone_info=CloneImageInfo(image_info); |
| 658 | if(ReadBlob(image,124,(unsigned char *) &MATLAB_HDR.identific) != 124) |
| 659 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| 660 | MATLAB_HDR.Version = ReadBlobLSBShort(image); |
| 661 | if(ReadBlob(image,2,(unsigned char *) &MATLAB_HDR.EndianIndicator) != 2) |
| 662 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| 663 | |
| 664 | if (logging) (void)LogMagickEvent(CoderEvent,GetMagickModule()," Endian %c%c", |
| 665 | MATLAB_HDR.EndianIndicator[0],MATLAB_HDR.EndianIndicator[1]); |
| 666 | if (!strncmp(MATLAB_HDR.EndianIndicator, "IM", 2)) |
| 667 | { |
| 668 | ReadBlobXXXLong = ReadBlobLSBLong; |
| 669 | ReadBlobXXXShort = ReadBlobLSBShort; |
| 670 | ReadBlobDoublesXXX = ReadBlobDoublesLSB; |
| 671 | ReadBlobFloatsXXX = ReadBlobFloatsLSB; |
| 672 | image->endian = LSBEndian; |
| 673 | } |
| 674 | else if (!strncmp(MATLAB_HDR.EndianIndicator, "MI", 2)) |
| 675 | { |
| 676 | ReadBlobXXXLong = ReadBlobMSBLong; |
| 677 | ReadBlobXXXShort = ReadBlobMSBShort; |
| 678 | ReadBlobDoublesXXX = ReadBlobDoublesMSB; |
| 679 | ReadBlobFloatsXXX = ReadBlobFloatsMSB; |
| 680 | image->endian = MSBEndian; |
| 681 | } |
| 682 | else |
| 683 | goto MATLAB_KO; /* unsupported endian */ |
| 684 | |
| 685 | if (strncmp(MATLAB_HDR.identific, "MATLAB", 6)) |
| 686 | MATLAB_KO: ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| 687 | |
| 688 | filepos = TellBlob(image); |
| 689 | while(!EOFBlob(image)) /* object parser loop */ |
| 690 | { |
| 691 | (void) SeekBlob(image,filepos,SEEK_SET); |
| 692 | /* printf("pos=%X\n",TellBlob(image)); */ |
| 693 | |
| 694 | MATLAB_HDR.DataType = ReadBlobXXXLong(image); |
| 695 | if(EOFBlob(image)) break; |
| 696 | MATLAB_HDR.ObjectSize = ReadBlobXXXLong(image); |
| 697 | if(EOFBlob(image)) break; |
| 698 | filepos += MATLAB_HDR.ObjectSize + 4 + 4; |
| 699 | |
| 700 | image2 = image; |
| 701 | #if defined(MAGICKCORE_ZLIB_DELEGATE) |
| 702 | if(MATLAB_HDR.DataType == miCOMPRESSED) |
| 703 | { |
| 704 | image2 = DecompressBlock(image,MATLAB_HDR.ObjectSize,clone_info,exception); |
| 705 | if(image2==NULL) continue; |
| 706 | MATLAB_HDR.DataType = ReadBlobXXXLong(image2); /* replace compressed object type. */ |
| 707 | } |
| 708 | #endif |
| 709 | |
| 710 | if(MATLAB_HDR.DataType!=miMATRIX) continue; /* skip another objects. */ |
| 711 | |
| 712 | MATLAB_HDR.unknown1 = ReadBlobXXXLong(image2); |
| 713 | MATLAB_HDR.unknown2 = ReadBlobXXXLong(image2); |
| 714 | |
| 715 | MATLAB_HDR.unknown5 = ReadBlobXXXLong(image2); |
| 716 | MATLAB_HDR.StructureClass = MATLAB_HDR.unknown5 & 0xFF; |
| 717 | MATLAB_HDR.StructureFlag = (MATLAB_HDR.unknown5>>8) & 0xFF; |
| 718 | |
| 719 | MATLAB_HDR.unknown3 = ReadBlobXXXLong(image2); |
| 720 | if(image!=image2) |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 721 | MATLAB_HDR.unknown4 = ReadBlobXXXLong(image2); /* ??? don't understand why ?? */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 722 | MATLAB_HDR.unknown4 = ReadBlobXXXLong(image2); |
| 723 | MATLAB_HDR.DimFlag = ReadBlobXXXLong(image2); |
| 724 | MATLAB_HDR.SizeX = ReadBlobXXXLong(image2); |
| 725 | MATLAB_HDR.SizeY = ReadBlobXXXLong(image2); |
| 726 | |
| 727 | |
| 728 | switch(MATLAB_HDR.DimFlag) |
| 729 | { |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 730 | case 8: z=1; break; /* 2D matrix*/ |
| 731 | case 12: z = ReadBlobXXXLong(image2); /* 3D matrix RGB*/ |
| 732 | Unknown6 = ReadBlobXXXLong(image2); |
cristy | da16f16 | 2011-02-19 23:52:17 +0000 | [diff] [blame] | 733 | (void) Unknown6; |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 734 | if(z!=3) ThrowReaderException(CoderError, "MultidimensionalMatricesAreNotSupported"); |
| 735 | break; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 736 | default: ThrowReaderException(CoderError, "MultidimensionalMatricesAreNotSupported"); |
| 737 | } |
| 738 | |
| 739 | MATLAB_HDR.Flag1 = ReadBlobXXXShort(image2); |
| 740 | MATLAB_HDR.NameFlag = ReadBlobXXXShort(image2); |
| 741 | |
| 742 | if (logging) (void)LogMagickEvent(CoderEvent,GetMagickModule(), |
| 743 | "MATLAB_HDR.StructureClass %d",MATLAB_HDR.StructureClass); |
| 744 | if (MATLAB_HDR.StructureClass != mxCHAR_CLASS && |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 745 | MATLAB_HDR.StructureClass != mxSINGLE_CLASS && /* float + complex float */ |
| 746 | MATLAB_HDR.StructureClass != mxDOUBLE_CLASS && /* double + complex double */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 747 | MATLAB_HDR.StructureClass != mxINT8_CLASS && |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 748 | MATLAB_HDR.StructureClass != mxUINT8_CLASS && /* uint8 + uint8 3D */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 749 | MATLAB_HDR.StructureClass != mxINT16_CLASS && |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 750 | MATLAB_HDR.StructureClass != mxUINT16_CLASS && /* uint16 + uint16 3D */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 751 | MATLAB_HDR.StructureClass != mxINT32_CLASS && |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 752 | MATLAB_HDR.StructureClass != mxUINT32_CLASS && /* uint32 + uint32 3D */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 753 | MATLAB_HDR.StructureClass != mxINT64_CLASS && |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 754 | MATLAB_HDR.StructureClass != mxUINT64_CLASS) /* uint64 + uint64 3D */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 755 | ThrowReaderException(CoderError,"UnsupportedCellTypeInTheMatrix"); |
| 756 | |
| 757 | switch (MATLAB_HDR.NameFlag) |
| 758 | { |
| 759 | case 0: |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 760 | size = ReadBlobXXXLong(image2); /* Object name string size */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 761 | size = 4 * (ssize_t) ((size + 3 + 1) / 4); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 762 | (void) SeekBlob(image2, size, SEEK_CUR); |
| 763 | break; |
| 764 | case 1: |
| 765 | case 2: |
| 766 | case 3: |
| 767 | case 4: |
| 768 | (void) ReadBlob(image2, 4, (unsigned char *) &size); /* Object name string */ |
| 769 | break; |
| 770 | default: |
| 771 | goto MATLAB_KO; |
| 772 | } |
| 773 | |
| 774 | CellType = ReadBlobXXXLong(image2); /* Additional object type */ |
cristy | f2faecf | 2010-05-28 19:19:36 +0000 | [diff] [blame] | 775 | if (logging) |
| 776 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 777 | "MATLAB_HDR.CellType: %.20g",(double) CellType); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 778 | |
| 779 | (void) ReadBlob(image2, 4, (unsigned char *) &size); /* data size */ |
| 780 | |
| 781 | /* Image is gray when no complex flag is set and 2D Matrix */ |
| 782 | if ((MATLAB_HDR.DimFlag == 8) && |
| 783 | ((MATLAB_HDR.StructureFlag & FLAG_COMPLEX) == 0)) |
| 784 | image->type=GrayscaleType; |
| 785 | |
| 786 | switch (CellType) |
| 787 | { |
| 788 | case miINT8: |
| 789 | case miUINT8: |
| 790 | sample_size = 8; |
| 791 | if(MATLAB_HDR.StructureFlag & FLAG_LOGICAL) |
| 792 | image->depth = 1; |
| 793 | else |
| 794 | image->depth = 8; /* Byte type cell */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 795 | ldblk = (ssize_t) MATLAB_HDR.SizeX; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 796 | break; |
| 797 | case miINT16: |
| 798 | case miUINT16: |
| 799 | sample_size = 16; |
| 800 | image->depth = 16; /* Word type cell */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 801 | ldblk = (ssize_t) (2 * MATLAB_HDR.SizeX); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 802 | break; |
| 803 | case miINT32: |
| 804 | case miUINT32: |
| 805 | sample_size = 32; |
| 806 | image->depth = 32; /* Dword type cell */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 807 | ldblk = (ssize_t) (4 * MATLAB_HDR.SizeX); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 808 | break; |
| 809 | case miINT64: |
| 810 | case miUINT64: |
| 811 | sample_size = 64; |
| 812 | image->depth = 64; /* Qword type cell */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 813 | ldblk = (ssize_t) (8 * MATLAB_HDR.SizeX); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 814 | break; |
| 815 | case miSINGLE: |
| 816 | sample_size = 32; |
| 817 | image->depth = 32; /* double type cell */ |
| 818 | (void) SetImageOption(clone_info,"quantum:format","floating-point"); |
| 819 | if (MATLAB_HDR.StructureFlag & FLAG_COMPLEX) |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 820 | { /* complex float type cell */ |
| 821 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 822 | ldblk = (ssize_t) (4 * MATLAB_HDR.SizeX); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 823 | break; |
| 824 | case miDOUBLE: |
| 825 | sample_size = 64; |
| 826 | image->depth = 64; /* double type cell */ |
| 827 | (void) SetImageOption(clone_info,"quantum:format","floating-point"); |
| 828 | if (sizeof(double) != 8) |
| 829 | ThrowReaderException(CoderError, "IncompatibleSizeOfDouble"); |
| 830 | if (MATLAB_HDR.StructureFlag & FLAG_COMPLEX) |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 831 | { /* complex double type cell */ |
| 832 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 833 | ldblk = (ssize_t) (8 * MATLAB_HDR.SizeX); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 834 | break; |
| 835 | default: |
| 836 | ThrowReaderException(CoderError, "UnsupportedCellTypeInTheMatrix"); |
| 837 | } |
cristy | da16f16 | 2011-02-19 23:52:17 +0000 | [diff] [blame] | 838 | (void) sample_size; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 839 | image->columns = MATLAB_HDR.SizeX; |
| 840 | image->rows = MATLAB_HDR.SizeY; |
| 841 | quantum_info=AcquireQuantumInfo(clone_info,image); |
| 842 | if (quantum_info == (QuantumInfo *) NULL) |
| 843 | ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
cristy | eaedf06 | 2010-05-29 22:36:02 +0000 | [diff] [blame] | 844 | one=1; |
| 845 | image->colors = one << image->depth; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 846 | if (image->columns == 0 || image->rows == 0) |
| 847 | goto MATLAB_KO; |
| 848 | |
| 849 | /* ----- Create gray palette ----- */ |
| 850 | |
| 851 | if (CellType==miUINT8 && z!=3) |
| 852 | { |
| 853 | if(image->colors>256) image->colors = 256; |
| 854 | |
| 855 | if (!AcquireImageColormap(image, image->colors)) |
| 856 | { |
| 857 | NoMemory:ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");} |
| 858 | } |
| 859 | |
| 860 | /* |
| 861 | If ping is true, then only set image size and colors without |
| 862 | reading any image data. |
| 863 | */ |
| 864 | if (image_info->ping) |
| 865 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 866 | size_t temp = image->columns; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 867 | image->columns = image->rows; |
| 868 | image->rows = temp; |
| 869 | goto done_reading; /* !!!!!! BAD !!!! */ |
| 870 | } |
| 871 | |
| 872 | /* ----- Load raster data ----- */ |
| 873 | BImgBuff = (unsigned char *) AcquireQuantumMemory((size_t) (ldblk),sizeof(unsigned char *)); /* Ldblk was set in the check phase */ |
| 874 | if (BImgBuff == NULL) |
| 875 | goto NoMemory; |
| 876 | |
| 877 | MinVal = 0; |
| 878 | MaxVal = 0; |
| 879 | if (CellType==miDOUBLE || CellType==miSINGLE) /* Find Min and Max Values for floats */ |
| 880 | { |
| 881 | CalcMinMax(image2, image_info->endian, MATLAB_HDR.SizeX, MATLAB_HDR.SizeY, CellType, ldblk, BImgBuff, &quantum_info->minimum, &quantum_info->maximum); |
| 882 | } |
| 883 | |
| 884 | /* Main loop for reading all scanlines */ |
| 885 | if(z==1) z=0; /* read grey scanlines */ |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 886 | /* else read color scanlines */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 887 | do |
| 888 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 889 | for (i = 0; i < (ssize_t) MATLAB_HDR.SizeY; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 890 | { |
| 891 | q=QueueAuthenticPixels(image,0,MATLAB_HDR.SizeY-i-1,image->columns,1,exception); |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 892 | if (q == (const Quantum *)NULL) |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 893 | { |
| 894 | if (logging) (void)LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 895 | " MAT set image pixels returns unexpected NULL on a row %u.", (unsigned)(MATLAB_HDR.SizeY-i-1)); |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 896 | goto done_reading; /* Skip image rotation, when cannot set image pixels */ |
| 897 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 898 | if(ReadBlob(image2,ldblk,(unsigned char *)BImgBuff) != (ssize_t) ldblk) |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 899 | { |
| 900 | if (logging) (void)LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 901 | " MAT cannot read scanrow %u from a file.", (unsigned)(MATLAB_HDR.SizeY-i-1)); |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 902 | goto ExitLoop; |
| 903 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 904 | if((CellType==miINT8 || CellType==miUINT8) && (MATLAB_HDR.StructureFlag & FLAG_LOGICAL)) |
| 905 | { |
| 906 | FixLogical((unsigned char *)BImgBuff,ldblk); |
| 907 | if(ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,z2qtype[z],BImgBuff,exception) <= 0) |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 908 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 909 | ImportQuantumPixelsFailed: |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 910 | if (logging) (void)LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 911 | " MAT failed to ImportQuantumPixels for a row %u", (unsigned)(MATLAB_HDR.SizeY-i-1)); |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 912 | break; |
| 913 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 914 | } |
| 915 | else |
| 916 | { |
| 917 | if(ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,z2qtype[z],BImgBuff,exception) <= 0) |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 918 | goto ImportQuantumPixelsFailed; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 919 | |
| 920 | |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 921 | if (z<=1 && /* fix only during a last pass z==0 || z==1 */ |
| 922 | (CellType==miINT8 || CellType==miINT16 || CellType==miINT32 || CellType==miINT64)) |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 923 | FixSignedValues(image,q,MATLAB_HDR.SizeX); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 924 | } |
| 925 | |
| 926 | if (!SyncAuthenticPixels(image,exception)) |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 927 | { |
| 928 | if (logging) (void)LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 929 | " MAT failed to sync image pixels for a row %u", (unsigned)(MATLAB_HDR.SizeY-i-1)); |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 930 | goto ExitLoop; |
| 931 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 932 | } |
| 933 | } while(z-- >= 2); |
| 934 | ExitLoop: |
| 935 | |
| 936 | |
| 937 | /* Read complex part of numbers here */ |
| 938 | if (MATLAB_HDR.StructureFlag & FLAG_COMPLEX) |
| 939 | { /* Find Min and Max Values for complex parts of floats */ |
| 940 | CellType = ReadBlobXXXLong(image2); /* Additional object type */ |
| 941 | i = ReadBlobXXXLong(image2); /* size of a complex part - toss away*/ |
| 942 | |
| 943 | if (CellType==miDOUBLE || CellType==miSINGLE) |
| 944 | { |
| 945 | CalcMinMax(image2, image_info->endian, MATLAB_HDR.SizeX, MATLAB_HDR.SizeY, CellType, ldblk, BImgBuff, &MinVal, &MaxVal); |
| 946 | } |
| 947 | |
| 948 | if (CellType==miDOUBLE) |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 949 | for (i = 0; i < (ssize_t) MATLAB_HDR.SizeY; i++) |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 950 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 951 | ReadBlobDoublesXXX(image2, ldblk, (double *)BImgBuff); |
| 952 | InsertComplexDoubleRow((double *)BImgBuff, i, image, MinVal, MaxVal); |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 953 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 954 | |
| 955 | if (CellType==miSINGLE) |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 956 | for (i = 0; i < (ssize_t) MATLAB_HDR.SizeY; i++) |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 957 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 958 | ReadBlobFloatsXXX(image2, ldblk, (float *)BImgBuff); |
| 959 | InsertComplexFloatRow((float *)BImgBuff, i, image, MinVal, MaxVal); |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 960 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 961 | } |
| 962 | |
| 963 | /* Image is gray when no complex flag is set and 2D Matrix AGAIN!!! */ |
| 964 | if ((MATLAB_HDR.DimFlag == 8) && |
| 965 | ((MATLAB_HDR.StructureFlag & FLAG_COMPLEX) == 0)) |
| 966 | image->type=GrayscaleType; |
| 967 | if (image->depth == 1) |
| 968 | image->type=BilevelType; |
| 969 | |
| 970 | if(image2==image) |
| 971 | image2 = NULL; /* Remove shadow copy to an image before rotation. */ |
| 972 | |
| 973 | /* Rotate image. */ |
| 974 | rotated_image = RotateImage(image, 90.0, exception); |
| 975 | if (rotated_image != (Image *) NULL) |
| 976 | { |
| 977 | /* Remove page offsets added by RotateImage */ |
| 978 | rotated_image->page.x=0; |
| 979 | rotated_image->page.y=0; |
| 980 | |
| 981 | blob = rotated_image->blob; |
| 982 | rotated_image->blob = image->blob; |
| 983 | rotated_image->colors = image->colors; |
| 984 | image->blob = blob; |
| 985 | AppendImageToList(&image,rotated_image); |
| 986 | DeleteImageFromList(&image); |
| 987 | } |
| 988 | |
| 989 | done_reading: |
| 990 | |
| 991 | if(image2!=NULL) |
| 992 | if(image2!=image) |
| 993 | { |
| 994 | DeleteImageFromList(&image2); |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 995 | if(clone_info) |
| 996 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 997 | if(clone_info->file) |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 998 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 999 | fclose(clone_info->file); |
| 1000 | clone_info->file = NULL; |
| 1001 | (void) unlink(clone_info->filename); |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 1002 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1003 | } |
| 1004 | } |
| 1005 | |
| 1006 | /* Allocate next image structure. */ |
| 1007 | AcquireNextImage(image_info,image); |
| 1008 | if (image->next == (Image *) NULL) break; |
| 1009 | image=SyncNextImageInList(image); |
| 1010 | image->columns=image->rows=0; |
| 1011 | image->colors=0; |
| 1012 | |
cristy | a03e799 | 2010-06-25 12:18:06 +0000 | [diff] [blame] | 1013 | /* row scan buffer is no longer needed */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1014 | RelinquishMagickMemory(BImgBuff); |
| 1015 | BImgBuff = NULL; |
| 1016 | } |
| 1017 | clone_info=DestroyImageInfo(clone_info); |
| 1018 | |
| 1019 | RelinquishMagickMemory(BImgBuff); |
| 1020 | CloseBlob(image); |
| 1021 | |
| 1022 | |
| 1023 | { |
| 1024 | Image *p; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1025 | ssize_t scene=0; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1026 | |
| 1027 | /* |
| 1028 | Rewind list, removing any empty images while rewinding. |
| 1029 | */ |
| 1030 | p=image; |
| 1031 | image=NULL; |
| 1032 | while (p != (Image *)NULL) |
| 1033 | { |
| 1034 | Image *tmp=p; |
| 1035 | if ((p->rows == 0) || (p->columns == 0)) { |
| 1036 | p=p->previous; |
| 1037 | DeleteImageFromList(&tmp); |
| 1038 | } else { |
| 1039 | image=p; |
| 1040 | p=p->previous; |
| 1041 | } |
| 1042 | } |
| 1043 | |
| 1044 | /* |
| 1045 | Fix scene numbers |
| 1046 | */ |
| 1047 | for (p=image; p != (Image *) NULL; p=p->next) |
| 1048 | p->scene=scene++; |
| 1049 | } |
| 1050 | |
cristy | c5de699 | 2009-10-06 19:19:48 +0000 | [diff] [blame] | 1051 | if(clone_info != NULL) /* cleanup garbage file from compression */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1052 | { |
| 1053 | if(clone_info->file) |
| 1054 | { |
| 1055 | fclose(clone_info->file); |
| 1056 | clone_info->file = NULL; |
| 1057 | (void) unlink(clone_info->filename); |
| 1058 | } |
| 1059 | DestroyImageInfo(clone_info); |
| 1060 | clone_info = NULL; |
| 1061 | } |
| 1062 | if (logging) (void)LogMagickEvent(CoderEvent,GetMagickModule(),"return"); |
| 1063 | if(image==NULL) |
| 1064 | ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| 1065 | return (image); |
| 1066 | } |
| 1067 | |
| 1068 | /* |
| 1069 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1070 | % % |
| 1071 | % % |
| 1072 | % % |
| 1073 | % R e g i s t e r M A T I m a g e % |
| 1074 | % % |
| 1075 | % % |
| 1076 | % % |
| 1077 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1078 | % |
| 1079 | % Method RegisterMATImage adds attributes for the MAT image format to |
| 1080 | % the list of supported formats. The attributes include the image format |
| 1081 | % tag, a method to read and/or write the format, whether the format |
| 1082 | % supports the saving of more than one frame to the same file or blob, |
| 1083 | % whether the format supports native in-memory I/O, and a brief |
| 1084 | % description of the format. |
| 1085 | % |
| 1086 | % The format of the RegisterMATImage method is: |
| 1087 | % |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1088 | % size_t RegisterMATImage(void) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1089 | % |
| 1090 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1091 | ModuleExport size_t RegisterMATImage(void) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1092 | { |
| 1093 | MagickInfo |
| 1094 | *entry; |
| 1095 | |
| 1096 | entry=SetMagickInfo("MAT"); |
| 1097 | entry->decoder=(DecodeImageHandler *) ReadMATImage; |
| 1098 | entry->encoder=(EncodeImageHandler *) WriteMATImage; |
| 1099 | entry->blob_support=MagickFalse; |
| 1100 | entry->seekable_stream=MagickTrue; |
cristy | a7cb431 | 2010-06-26 00:47:03 +0000 | [diff] [blame] | 1101 | entry->description=AcquireString("MATLAB level 5 image format"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1102 | entry->module=AcquireString("MAT"); |
| 1103 | (void) RegisterMagickInfo(entry); |
| 1104 | return(MagickImageCoderSignature); |
| 1105 | } |
| 1106 | |
| 1107 | /* |
| 1108 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1109 | % % |
| 1110 | % % |
| 1111 | % % |
| 1112 | % U n r e g i s t e r M A T I m a g e % |
| 1113 | % % |
| 1114 | % % |
| 1115 | % % |
| 1116 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1117 | % |
| 1118 | % Method UnregisterMATImage removes format registrations made by the |
| 1119 | % MAT module from the list of supported formats. |
| 1120 | % |
| 1121 | % The format of the UnregisterMATImage method is: |
| 1122 | % |
| 1123 | % UnregisterMATImage(void) |
| 1124 | % |
| 1125 | */ |
| 1126 | ModuleExport void UnregisterMATImage(void) |
| 1127 | { |
| 1128 | (void) UnregisterMagickInfo("MAT"); |
| 1129 | } |
| 1130 | |
| 1131 | /* |
| 1132 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1133 | % % |
| 1134 | % % |
| 1135 | % % |
| 1136 | % W r i t e M A T L A B I m a g e % |
| 1137 | % % |
| 1138 | % % |
| 1139 | % % |
| 1140 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1141 | % |
| 1142 | % Function WriteMATImage writes an Matlab matrix to a file. |
| 1143 | % |
| 1144 | % The format of the WriteMATImage method is: |
| 1145 | % |
| 1146 | % unsigned int WriteMATImage(const ImageInfo *image_info,Image *image) |
| 1147 | % |
| 1148 | % A description of each parameter follows. |
| 1149 | % |
| 1150 | % o status: Function WriteMATImage return True if the image is written. |
| 1151 | % False is returned is there is a memory shortage or if the image file |
| 1152 | % fails to write. |
| 1153 | % |
| 1154 | % o image_info: Specifies a pointer to a ImageInfo structure. |
| 1155 | % |
| 1156 | % o image: A pointer to an Image structure. |
| 1157 | % |
| 1158 | */ |
| 1159 | static MagickBooleanType WriteMATImage(const ImageInfo *image_info,Image *image) |
| 1160 | { |
| 1161 | ExceptionInfo |
| 1162 | *exception; |
| 1163 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1164 | ssize_t y; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1165 | unsigned z; |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1166 | register const Quantum *p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1167 | |
| 1168 | unsigned int status; |
| 1169 | int logging; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1170 | size_t DataSize; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1171 | char padding; |
| 1172 | char MATLAB_HDR[0x80]; |
| 1173 | time_t current_time; |
| 1174 | struct tm local_time; |
| 1175 | unsigned char *pixels; |
| 1176 | int is_gray; |
| 1177 | |
| 1178 | MagickOffsetType |
| 1179 | scene; |
| 1180 | |
| 1181 | QuantumInfo |
| 1182 | *quantum_info; |
| 1183 | |
| 1184 | /* |
| 1185 | Open output image file. |
| 1186 | */ |
| 1187 | assert(image_info != (const ImageInfo *) NULL); |
| 1188 | assert(image_info->signature == MagickSignature); |
| 1189 | assert(image != (Image *) NULL); |
| 1190 | assert(image->signature == MagickSignature); |
| 1191 | logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter MAT"); |
cristy | da16f16 | 2011-02-19 23:52:17 +0000 | [diff] [blame] | 1192 | (void) logging; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1193 | status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); |
| 1194 | if (status == MagickFalse) |
| 1195 | return(MagickFalse); |
| 1196 | image->depth=8; |
| 1197 | |
| 1198 | current_time=time((time_t *) NULL); |
| 1199 | #if defined(MAGICKCORE_HAVE_LOCALTIME_R) |
| 1200 | (void) localtime_r(¤t_time,&local_time); |
| 1201 | #else |
| 1202 | (void) memcpy(&local_time,localtime(¤t_time),sizeof(local_time)); |
| 1203 | #endif |
| 1204 | (void) memset(MATLAB_HDR,' ',MagickMin(sizeof(MATLAB_HDR),124)); |
cristy | b51dff5 | 2011-05-19 16:55:47 +0000 | [diff] [blame] | 1205 | FormatLocaleString(MATLAB_HDR,MaxTextExtent,"MATLAB 5.0 MAT-file, Platform: %s, Created on: %s %s %2d %2d:%2d:%2d %d", |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1206 | OsDesc,DayOfWTab[local_time.tm_wday],MonthsTab[local_time.tm_mon], |
| 1207 | local_time.tm_mday,local_time.tm_hour,local_time.tm_min, |
| 1208 | local_time.tm_sec,local_time.tm_year+1900); |
| 1209 | MATLAB_HDR[0x7C]=0; |
| 1210 | MATLAB_HDR[0x7D]=1; |
| 1211 | MATLAB_HDR[0x7E]='I'; |
| 1212 | MATLAB_HDR[0x7F]='M'; |
| 1213 | (void) WriteBlob(image,sizeof(MATLAB_HDR),(unsigned char *) MATLAB_HDR); |
| 1214 | scene=0; |
| 1215 | do |
| 1216 | { |
cristy | 510d06a | 2011-07-06 23:43:54 +0000 | [diff] [blame] | 1217 | if (IsRGBColorspace(image->colorspace) == MagickFalse) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1218 | (void) TransformImageColorspace(image,RGBColorspace); |
| 1219 | |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1220 | is_gray = IsImageGray(image,&image->exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1221 | z = is_gray ? 0 : 3; |
| 1222 | |
| 1223 | /* |
| 1224 | Store MAT header. |
| 1225 | */ |
| 1226 | DataSize = image->rows /*Y*/ * image->columns /*X*/; |
| 1227 | if(!is_gray) DataSize *= 3 /*Z*/; |
| 1228 | padding=((unsigned char)(DataSize-1) & 0x7) ^ 0x7; |
| 1229 | |
| 1230 | (void) WriteBlobLSBLong(image, miMATRIX); |
cristy | f6fe0a1 | 2010-05-30 00:44:47 +0000 | [diff] [blame] | 1231 | (void) WriteBlobLSBLong(image, (unsigned int) DataSize+padding+(is_gray ? 48 : 56)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1232 | (void) WriteBlobLSBLong(image, 0x6); /* 0x88 */ |
| 1233 | (void) WriteBlobLSBLong(image, 0x8); /* 0x8C */ |
| 1234 | (void) WriteBlobLSBLong(image, 0x6); /* 0x90 */ |
| 1235 | (void) WriteBlobLSBLong(image, 0); |
| 1236 | (void) WriteBlobLSBLong(image, 0x5); /* 0x98 */ |
| 1237 | (void) WriteBlobLSBLong(image, is_gray ? 0x8 : 0xC); /* 0x9C - DimFlag */ |
cristy | f6fe0a1 | 2010-05-30 00:44:47 +0000 | [diff] [blame] | 1238 | (void) WriteBlobLSBLong(image, (unsigned int) image->rows); /* x: 0xA0 */ |
| 1239 | (void) WriteBlobLSBLong(image, (unsigned int) image->columns); /* y: 0xA4 */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1240 | if(!is_gray) |
| 1241 | { |
| 1242 | (void) WriteBlobLSBLong(image, 3); /* z: 0xA8 */ |
| 1243 | (void) WriteBlobLSBLong(image, 0); |
| 1244 | } |
| 1245 | (void) WriteBlobLSBShort(image, 1); /* 0xB0 */ |
| 1246 | (void) WriteBlobLSBShort(image, 1); /* 0xB2 */ |
| 1247 | (void) WriteBlobLSBLong(image, 'M'); /* 0xB4 */ |
| 1248 | (void) WriteBlobLSBLong(image, 0x2); /* 0xB8 */ |
cristy | f6fe0a1 | 2010-05-30 00:44:47 +0000 | [diff] [blame] | 1249 | (void) WriteBlobLSBLong(image, (unsigned int) DataSize); /* 0xBC */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1250 | |
| 1251 | /* |
| 1252 | Store image data. |
| 1253 | */ |
| 1254 | exception=(&image->exception); |
| 1255 | quantum_info=AcquireQuantumInfo(image_info,image); |
| 1256 | if (quantum_info == (QuantumInfo *) NULL) |
| 1257 | ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
| 1258 | pixels=GetQuantumPixels(quantum_info); |
| 1259 | do |
| 1260 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1261 | for (y=0; y < (ssize_t)image->columns; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1262 | { |
| 1263 | p=GetVirtualPixels(image,y,0,1,image->rows,&image->exception); |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1264 | if (p == (const Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1265 | break; |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1266 | (void) ExportQuantumPixels(image,(CacheView *) NULL,quantum_info, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1267 | z2qtype[z],pixels,exception); |
| 1268 | (void) WriteBlob(image,image->rows,pixels); |
| 1269 | } |
| 1270 | if (!SyncAuthenticPixels(image,exception)) |
| 1271 | break; |
| 1272 | } while(z-- >= 2); |
| 1273 | while(padding-->0) (void) WriteBlobByte(image,0); |
| 1274 | quantum_info=DestroyQuantumInfo(quantum_info); |
| 1275 | if (GetNextImageInList(image) == (Image *) NULL) |
| 1276 | break; |
| 1277 | image=SyncNextImageInList(image); |
| 1278 | status=SetImageProgress(image,SaveImagesTag,scene++, |
| 1279 | GetImageListLength(image)); |
| 1280 | if (status == MagickFalse) |
| 1281 | break; |
| 1282 | } while (image_info->adjoin != MagickFalse); |
| 1283 | (void) CloseBlob(image); |
| 1284 | return(MagickTrue); |
| 1285 | } |