workbench/libs/lcms2/utils/common/vprf.c

   1 //---------------------------------------------------------------------------------
   2 //
   3 //  Little Color Management System
   4 //  Copyright (c) 1998-2010 Marti Maria Saguer
   5 //
   6 // Permission is hereby granted, free of charge, to any person obtaining
   7 // a copy of this software and associated documentation files (the "Software"),
   8 // to deal in the Software without restriction, including without limitation
   9 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10 // and/or sell copies of the Software, and to permit persons to whom the Software
  11 // is furnished to do so, subject to the following conditions:
  12 //
  13 // The above copyright notice and this permission notice shall be included in
  14 // all copies or substantial portions of the Software.
  15 //
  16 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  17 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
  18 // THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  19 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  20 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  21 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  22 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23 //
  24 //---------------------------------------------------------------------------------
  25 //
  26
  27 #include "utils.h"
  28
  29
  30 int Verbose = 0;
  31
  32 static char ProgramName[256] = "";
  33
  34 void FatalError(const char *frm, ...)
  35 {
  36     va_list args;
  37
  38     va_start(args, frm);
  39     fprintf(stderr, "[%s fatal error]: ", ProgramName);
  40     vfprintf(stderr, frm, args);
  41     fprintf(stderr, "\n");
  42     va_end(args);
  43
  44     exit(1);
  45 }
  46
  47 // Show errors to the end user (unless quiet option)
  48 static
  49 void MyErrorLogHandler(cmsContext ContextID, cmsUInt32Number ErrorCode, const char *Text)
  50 {
  51     if (Verbose >= 0)
  52         fprintf(stderr, "[%s]: %s\n", ProgramName, Text);
  53
  54     UTILS_UNUSED_PARAMETER(ErrorCode);
  55     UTILS_UNUSED_PARAMETER(ContextID);
  56 }
  57
  58
  59 void InitUtils(const char* PName)
  60 {
  61       strncpy(ProgramName, PName, sizeof(ProgramName));
  62       ProgramName[sizeof(ProgramName)-1] = 0;
  63
  64       cmsSetLogErrorHandler(MyErrorLogHandler);
  65 }
  66
  67
  68 // Virtual profiles are handled here.
  69 cmsHPROFILE OpenStockProfile(cmsContext ContextID, const char* File)
  70 {
  71        if (!File)
  72             return cmsCreate_sRGBProfileTHR(ContextID);
  73
  74        if (cmsstrcasecmp(File, "*Lab2") == 0)
  75                 return cmsCreateLab2ProfileTHR(ContextID, NULL);
  76
  77        if (cmsstrcasecmp(File, "*Lab4") == 0)
  78                 return cmsCreateLab4ProfileTHR(ContextID, NULL);
  79
  80        if (cmsstrcasecmp(File, "*Lab") == 0)
  81                 return cmsCreateLab4ProfileTHR(ContextID, NULL);
  82
  83        if (cmsstrcasecmp(File, "*LabD65") == 0) {
  84
  85            cmsCIExyY D65xyY;
  86
  87            cmsWhitePointFromTemp( &D65xyY, 6504);
  88            return cmsCreateLab4ProfileTHR(ContextID, &D65xyY);
  89        }
  90
  91        if (cmsstrcasecmp(File, "*XYZ") == 0)
  92                 return cmsCreateXYZProfileTHR(ContextID);
  93
  94        if (cmsstrcasecmp(File, "*Gray22") == 0) {
  95
  96            cmsToneCurve* Curve = cmsBuildGamma(ContextID, 2.2);
  97            cmsHPROFILE hProfile = cmsCreateGrayProfileTHR(ContextID, cmsD50_xyY(), Curve);
  98            cmsFreeToneCurve(Curve);
  99            return hProfile;
 100        }
 101
 102         if (cmsstrcasecmp(File, "*Gray30") == 0) {
 103
 104            cmsToneCurve* Curve = cmsBuildGamma(ContextID, 3.0);
 105            cmsHPROFILE hProfile = cmsCreateGrayProfileTHR(ContextID, cmsD50_xyY(), Curve);
 106            cmsFreeToneCurve(Curve);
 107            return hProfile;
 108        }
 109
 110        if (cmsstrcasecmp(File, "*srgb") == 0)
 111                 return cmsCreate_sRGBProfileTHR(ContextID);
 112
 113        if (cmsstrcasecmp(File, "*null") == 0)
 114                 return cmsCreateNULLProfileTHR(ContextID);
 115
 116
 117        if (cmsstrcasecmp(File, "*Lin2222") == 0) {
 118
 119             cmsToneCurve*  Gamma = cmsBuildGamma(0, 2.2);
 120             cmsToneCurve*  Gamma4[4];
 121             cmsHPROFILE hProfile;
 122
 123             Gamma4[0] = Gamma4[1] = Gamma4[2] = Gamma4[3] = Gamma;
 124             hProfile = cmsCreateLinearizationDeviceLink(cmsSigCmykData, Gamma4);
 125             cmsFreeToneCurve(Gamma);
 126             return hProfile;
 127        }
 128
 129
 130         return cmsOpenProfileFromFileTHR(ContextID, File, "r");
 131 }
 132
 133 // Help on available built-ins
 134 void PrintBuiltins(void)
 135 {
 136      fprintf(stderr, "\nBuilt-in profiles:\n\n");
 137      fprintf(stderr, "\t*Lab2  -- D50-based v2 CIEL*a*b\n"
 138                      "\t*Lab4  -- D50-based v4 CIEL*a*b\n"
 139                      "\t*Lab   -- D50-based v4 CIEL*a*b\n"
 140                      "\t*XYZ   -- CIE XYZ (PCS)\n"
 141                      "\t*sRGB  -- sRGB color space\n"
 142                      "\t*Gray22 - Monochrome of Gamma 2.2\n"
 143                      "\t*Gray30 - Monochrome of Gamma 3.0\n"
 144                      "\t*null   - Monochrome black for all input\n"
 145                      "\t*Lin2222- CMYK linearization of gamma 2.2 on each channel\n");
 146 }
 147
 148
 149 // Auxiliar for printing information on profile
 150 static
 151 void PrintInfo(cmsHPROFILE h, cmsInfoType Info)
 152 {
 153     char* text;
 154     int len;
 155
 156     len = cmsGetProfileInfoASCII(h, Info, "en", "US", NULL, 0);
 157     if (len == 0) return;
 158
 159     text = malloc(len * sizeof(char));
 160     if (text == NULL) return;
 161
 162     cmsGetProfileInfoASCII(h, Info, "en", "US", text, len);
 163
 164     if (strlen(text) > 0)
 165         printf("%s\n", text);
 166
 167     free(text);
 168 }
 169
 170
 171
 172 // Displays the colorant table
 173 static
 174 void PrintColorantTable(cmsHPROFILE hInput, cmsTagSignature Sig, const char* Title)
 175 {
 176     cmsNAMEDCOLORLIST* list;
 177     int i, n;
 178
 179     if (cmsIsTag(hInput, Sig)) {
 180
 181         printf("%s:\n", Title);
 182
 183         list = cmsReadTag(hInput, Sig);
 184         if (list == NULL) {
 185             printf("(Unavailable)\n");
 186             return;
 187         }
 188
 189         n = cmsNamedColorCount(list);
 190         for (i=0; i < n; i++) {
 191
 192             char Name[cmsMAX_PATH];
 193
 194             cmsNamedColorInfo(list, i, Name, NULL, NULL, NULL, NULL);
 195             printf("\t%s\n", Name);
 196         }
 197
 198         printf("\n");
 199     }
 200
 201 }
 202
 203
 204 void PrintProfileInformation(cmsHPROFILE hInput)
 205 {
 206     PrintInfo(hInput, cmsInfoDescription);
 207     PrintInfo(hInput, cmsInfoManufacturer);
 208     PrintInfo(hInput, cmsInfoModel);
 209     PrintInfo(hInput, cmsInfoCopyright);
 210
 211     if (Verbose > 2) {
 212
 213         PrintColorantTable(hInput, cmsSigColorantTableTag,    "Input colorant table");
 214         PrintColorantTable(hInput, cmsSigColorantTableOutTag, "Input colorant out table");
 215     }
 216
 217     printf("\n");
 218 }
 219
 220 // -----------------------------------------------------------------------------
 221
 222
 223 void PrintRenderingIntents(void)
 224 {
 225     cmsUInt32Number Codes[200];
 226     char* Descriptions[200];
 227     cmsUInt32Number n, i;
 228
 229     fprintf(stderr, "%ct<n> rendering intent:\n\n", SW);
 230
 231     n = cmsGetSupportedIntents(200, Codes, Descriptions);
 232
 233     for (i=0; i < n; i++) {
 234         fprintf(stderr, "\t%u - %s\n", Codes[i], Descriptions[i]);
 235     }
 236     fprintf(stderr, "\n");
 237 }
 238
 239
 240
 241 // ------------------------------------------------------------------------------
 242
 243 cmsBool SaveMemoryBlock(const cmsUInt8Number* Buffer, cmsUInt32Number dwLen, const char* Filename)
 244 {
 245     FILE* out = fopen(Filename, "wb");
 246     if (out == NULL) {
 247         FatalError("Cannot create '%s'", Filename);
 248         return FALSE;
 249     }
 250
 251     if (fwrite(Buffer, 1, dwLen, out) != dwLen) {
 252         FatalError("Cannot write %ld bytes to %s", dwLen, Filename);
 253         return FALSE;
 254     }
 255
 256     if (fclose(out) != 0) {
 257         FatalError("Error flushing file '%s'", Filename);
 258         return FALSE;
 259     }
 260
 261     return TRUE;
 262 }
 263
 264 // ------------------------------------------------------------------------------
 265
 266 // Return a pixel type on depending on the number of channels
 267 int PixelTypeFromChanCount(int ColorChannels)
 268 {
 269     switch (ColorChannels) {
 270
 271         case 1: return PT_GRAY;
 272         case 2: return PT_MCH2;
 273         case 3: return PT_MCH3;
 274         case 4: return PT_CMYK;
 275         case 5: return PT_MCH5;
 276         case 6: return PT_MCH6;
 277         case 7: return PT_MCH7;
 278         case 8: return PT_MCH8;
 279         case 9: return PT_MCH9;
 280         case 10: return PT_MCH10;
 281         case 11: return PT_MCH11;
 282         case 12: return PT_MCH12;
 283         case 13: return PT_MCH13;
 284         case 14: return PT_MCH14;
 285         case 15: return PT_MCH15;
 286
 287         default:
 288
 289             FatalError("What a weird separation of %d channels?!?!", ColorChannels);
 290             return -1;
 291     }
 292 }
 293
 294
 295 // ------------------------------------------------------------------------------
 296
 297 // Return number of channels of pixel type
 298 int ChanCountFromPixelType(int ColorChannels)
 299 {
 300     switch (ColorChannels) {
 301
 302       case PT_GRAY: return 1;
 303
 304       case PT_RGB:
 305       case PT_CMY:
 306       case PT_Lab:
 307       case PT_YUV:
 308       case PT_YCbCr: return 3;
 309
 310       case PT_CMYK: return 4 ;
 311       case PT_MCH2: return 2 ;
 312       case PT_MCH3: return 3 ;
 313       case PT_MCH4: return 4 ;
 314       case PT_MCH5: return 5 ;
 315       case PT_MCH6: return 6 ;
 316       case PT_MCH7: return 7 ;
 317       case PT_MCH8: return 8 ;
 318       case PT_MCH9: return 9 ;
 319       case PT_MCH10: return 10;
 320       case PT_MCH11: return 11;
 321       case PT_MCH12: return 12;
 322       case PT_MCH13: return 12;
 323       case PT_MCH14: return 14;
 324       case PT_MCH15: return 15;
 325
 326       default:
 327
 328           FatalError("Unsupported color space of %d channels", ColorChannels);
 329           return -1;
 330     }
 331 }
 332
 333