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