Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/lcms2/utils/samples/mkgrayer.c @ 40:aa33339d6b8a upstream

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ADD: MuPDF v1.26.10: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.5.
author Franz Glasner <fzglas.hg@dom66.de>
date Sat, 11 Oct 2025 11:31:38 +0200
parents b50eed0cc0ef
children
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1 //
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2 // Little cms
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3 // Copyright (C) 1998-2003 Marti Maria
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4 //
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5 // Permission is hereby granted, free of charge, to any person obtaining
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6 // a copy of this software and associated documentation files (the "Software"),
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7 // to deal in the Software without restriction, including without limitation
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8 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
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9 // and/or sell copies of the Software, and to permit persons to whom the Software
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10 // is furnished to do so, subject to the following conditions:
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11 //
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12 // The above copyright notice and this permission notice shall be included in
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13 // all copies or substantial portions of the Software.
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14 //
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15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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16 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
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17 // THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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18 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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19 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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20 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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21 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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24 #include "lcms.h"
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28 static
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29 int Forward(register WORD In[], register WORD Out[], register LPVOID Cargo)
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30 {
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31 cmsCIELab Lab;
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34 cmsLabEncoded2Float(&Lab, In);
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36 if (fabs(Lab.a) < 3 && fabs(Lab.b) < 3) {
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38 double L_01 = Lab.L / 100.0;
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39 WORD K;
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41 if (L_01 > 1) L_01 = 1;
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42 K = (WORD) floor(L_01* 65535.0 + 0.5);
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44 Out[0] = Out[1] = Out[2] = K;
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45 }
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46 else {
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47 Out[0] = 0xFFFF; Out[1] = 0; Out[2] = 0;
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48 }
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50 return TRUE;
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51 }
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57 int main(int argc, char *argv[])
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58 {
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59 LPLUT BToA0;
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60 cmsHPROFILE hProfile;
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62 fprintf(stderr, "Creating interpol2.icc...");
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64 unlink("interpol2.icc");
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65 hProfile = cmsOpenProfileFromFile("interpol2.icc", "w8");
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68 BToA0 = cmsAllocLUT();
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70 cmsAlloc3DGrid(BToA0, 17, 3, 3);
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72 cmsSample3DGrid(BToA0, Forward, NULL, 0);
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74 cmsAddTag(hProfile, icSigBToA0Tag, BToA0);
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76 cmsSetColorSpace(hProfile, icSigRgbData);
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77 cmsSetPCS(hProfile, icSigLabData);
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78 cmsSetDeviceClass(hProfile, icSigOutputClass);
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80 cmsAddTag(hProfile, icSigProfileDescriptionTag, "Interpolation test");
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81 cmsAddTag(hProfile, icSigCopyrightTag, "Copyright (c) HP 2007. All rights reserved.");
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82 cmsAddTag(hProfile, icSigDeviceMfgDescTag, "Little cms");
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83 cmsAddTag(hProfile, icSigDeviceModelDescTag, "Interpolation test profile");
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86 cmsCloseProfile(hProfile);
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88 cmsFreeLUT(BToA0);
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90 fprintf(stderr, "Done.\n");
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92 return 0;
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93 }