Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/lcms2/utils/samples/wtpt.c @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1 //
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2 // Little cms
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3 // Copyright (C) 1998-2015 Marti Maria
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4 //
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5 //---------------------------------------------------------------------------------
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6 //
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7 // Little Color Management System
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8 // Copyright (c) 1998-2014 Marti Maria Saguer
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9 //
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10 // Permission is hereby granted, free of charge, to any person obtaining
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11 // a copy of this software and associated documentation files (the "Software"),
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12 // to deal in the Software without restriction, including without limitation
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13 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
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14 // and/or sell copies of the Software, and to permit persons to whom the Software
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15 // is furnished to do so, subject to the following conditions:
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16 //
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17 // The above copyright notice and this permission notice shall be included in
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18 // all copies or substantial portions of the Software.
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19 //
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20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
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22 // THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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27 //
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28 //---------------------------------------------------------------------------------
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29
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30 #include "utils.h"
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33 // The toggles stuff
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34
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35 static cmsBool lShowXYZ = TRUE;
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36 static cmsBool lShowLab = FALSE;
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37 static cmsBool lShowLCh = FALSE;
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39 #define SW '-'
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41 static
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42 void HandleSwitches(int argc, char *argv[])
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43 {
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44 int s;
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46 while ((s = xgetopt(argc, argv, "lcx")) != EOF) {
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47
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48 switch (s){
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50
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51 case 'l':
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52 lShowLab = TRUE;
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53 break;
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54
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55 case 'c':
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56 lShowLCh = TRUE;
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57 break;
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59 case 'x':
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60 lShowXYZ = FALSE;
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61 break;
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62
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63 default:
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64
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65 FatalError("Unknown option - run without args to see valid ones.\n");
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66 }
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67 }
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68 }
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70 static
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71 void Help(void)
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72 {
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73 fprintf(stderr, "little CMS ICC white point utility - v3 [LittleCMS %2.2f]\n", LCMS_VERSION / 1000.0);
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75 fprintf(stderr, "usage: wtpt [flags] [<ICC profile>]\n\n");
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77 fprintf(stderr, "flags:\n\n");
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79 fprintf(stderr, "%cl - CIE Lab\n", SW);
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80 fprintf(stderr, "%cc - CIE LCh\n", SW);
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81 fprintf(stderr, "%cx - Don't show XYZ\n", SW);
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82
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83 fprintf(stderr, "\nIf no parameters are given, then this program will\n");
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84 fprintf(stderr, "ask for XYZ value of media white. If parameter given, it must be\n");
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85 fprintf(stderr, "the profile to inspect.\n\n");
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87 fprintf(stderr, "This program is intended to be a demo of the little cms\n"
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88 "engine. Both lcms and this program are freeware. You can\n"
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89 "obtain both in source code at http://www.littlecms.com\n"
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90 "For suggestions, comments, bug reports etc. send mail to\n"
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91 "info@littlecms.com\n\n");
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92 exit(0);
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93 }
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95
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96
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97 static
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98 void ShowWhitePoint(cmsCIEXYZ* WtPt)
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99 {
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100 cmsCIELab Lab;
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101 cmsCIELCh LCh;
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102 cmsCIExyY xyY;
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103
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104
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105 cmsXYZ2Lab(NULL, &Lab, WtPt);
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106 cmsLab2LCh(&LCh, &Lab);
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107 cmsXYZ2xyY(&xyY, WtPt);
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108
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109
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110 if (lShowXYZ) printf("XYZ=(%3.1f, %3.1f, %3.1f)\n", WtPt->X, WtPt->Y, WtPt->Z);
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111 if (lShowLab) printf("Lab=(%3.3f, %3.3f, %3.3f)\n", Lab.L, Lab.a, Lab.b);
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112 if (lShowLCh) printf("LCh=(%3.3f, %3.3f, %3.3f)\n", LCh.L, LCh.C, LCh.h);
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113 {
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114 double Ssens = (LCh.C * 100.0 )/ sqrt(LCh.C*LCh.C + LCh.L * LCh.L) ;
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115 printf("Sens = %f\n", Ssens);
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116 }
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117
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118 }
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119
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120
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121 int main(int argc, char *argv[])
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122 {
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123 int nargs;
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124
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125 InitUtils("wtpt");
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126
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127 HandleSwitches(argc, argv);
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128
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129 nargs = (argc - xoptind);
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130
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131 if (nargs != 1)
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132 Help();
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133
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134 else {
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135 cmsCIEXYZ* WtPt;
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136 cmsHPROFILE hProfile = cmsOpenProfileFromFile(argv[xoptind], "r");
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137 if (hProfile == NULL) return 1;
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138
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139 WtPt = cmsReadTag(hProfile, cmsSigMediaWhitePointTag);
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140 ShowWhitePoint(WtPt);
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141 cmsCloseProfile(hProfile);
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142 }
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143
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144 return 0;
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145 }
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146