171 lines
3.8 KiB
C
171 lines
3.8 KiB
C
//
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// Little cms
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// Copyright (C) 1998-2003 Marti Maria
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the Software
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// is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THIS SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
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// WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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//
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// IN NO EVENT SHALL MARTI MARIA BE LIABLE FOR ANY SPECIAL, INCIDENTAL,
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// INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
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// OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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// WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
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// LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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// OF THIS SOFTWARE.
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//
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// Version 1.12
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#include "lcms.h"
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typedef struct {
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cmsHPROFILE hLab;
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cmsHPROFILE hRGB;
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cmsHTRANSFORM Lab2RGB;
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cmsHTRANSFORM RGB2Lab;
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} CARGO, FAR* LPCARGO;
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// Our space will be CIE primaries plus a gamma of 4.5
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static
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int Forward(register WORD In[], register WORD Out[], register LPVOID Cargo)
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{
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LPCARGO C = (LPCARGO) Cargo;
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WORD RGB[3];
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cmsCIELab Lab;
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cmsLabEncoded2Float(&Lab, In);
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printf("%g %g %g\n", Lab.L, Lab.a, Lab.b);
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cmsDoTransform(C ->Lab2RGB, In, &RGB, 1);
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Out[0] = 0xFFFF - RGB[0]; // Our CMY is negative of RGB
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Out[1] = 0xFFFF - RGB[1];
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Out[2] = 0xFFFF - RGB[2];
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return TRUE;
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}
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static
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int Reverse(register WORD In[], register WORD Out[], register LPVOID Cargo)
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{
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LPCARGO C = (LPCARGO) Cargo;
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WORD RGB[3];
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RGB[0] = 0xFFFF - In[0];
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RGB[1] = 0xFFFF - In[1];
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RGB[2] = 0xFFFF - In[2];
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cmsDoTransform(C ->RGB2Lab, &RGB, Out, 1);
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return TRUE;
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}
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static
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void InitCargo(LPCARGO Cargo)
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{
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Cargo -> hLab = cmsCreateLabProfile(NULL);
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Cargo -> hRGB = cmsCreate_sRGBProfile();
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Cargo->Lab2RGB = cmsCreateTransform(Cargo->hLab, TYPE_Lab_16,
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Cargo ->hRGB, TYPE_RGB_16,
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INTENT_RELATIVE_COLORIMETRIC,
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cmsFLAGS_NOTPRECALC);
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Cargo->RGB2Lab = cmsCreateTransform(Cargo ->hRGB, TYPE_RGB_16,
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Cargo ->hLab, TYPE_Lab_16,
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INTENT_RELATIVE_COLORIMETRIC,
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cmsFLAGS_NOTPRECALC);
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}
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static
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void FreeCargo(LPCARGO Cargo)
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{
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cmsDeleteTransform(Cargo ->Lab2RGB);
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cmsDeleteTransform(Cargo ->RGB2Lab);
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cmsCloseProfile(Cargo ->hLab);
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cmsCloseProfile(Cargo ->hRGB);
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}
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int main(void)
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{
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LPLUT AToB0, BToA0;
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CARGO Cargo;
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cmsHPROFILE hProfile;
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fprintf(stderr, "Creating lcmscmy.icm...");
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InitCargo(&Cargo);
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hProfile = cmsCreateLabProfile(NULL);
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AToB0 = cmsAllocLUT();
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BToA0 = cmsAllocLUT();
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cmsAlloc3DGrid(AToB0, 25, 3, 3);
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cmsAlloc3DGrid(BToA0, 25, 3, 3);
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cmsSample3DGrid(AToB0, Reverse, &Cargo, 0);
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cmsSample3DGrid(BToA0, Forward, &Cargo, 0);
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cmsAddTag(hProfile, icSigAToB0Tag, AToB0);
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cmsAddTag(hProfile, icSigBToA0Tag, BToA0);
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cmsSetColorSpace(hProfile, icSigCmyData);
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cmsSetDeviceClass(hProfile, icSigOutputClass);
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cmsAddTag(hProfile, icSigProfileDescriptionTag, "CMY ");
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cmsAddTag(hProfile, icSigCopyrightTag, "Copyright (c) HP, 2007. All rights reserved.");
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cmsAddTag(hProfile, icSigDeviceMfgDescTag, "Little cms");
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cmsAddTag(hProfile, icSigDeviceModelDescTag, "CMY space");
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_cmsSaveProfile(hProfile, "lcmscmy.icm");
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cmsFreeLUT(AToB0);
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cmsFreeLUT(BToA0);
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cmsCloseProfile(hProfile);
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FreeCargo(&Cargo);
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fprintf(stderr, "Done.\n");
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return 0;
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}
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