// Create the ICC virtual profile for sRGB space
cmsHPROFILE LCMSEXPORT cmsCreate_sRGBProfile(void)
{
cmsCIExyY D65;
cmsCIExyYTRIPLE Rec709Primaries = {
{0.6400, 0.3300, 1.0},
{0.3000, 0.6000, 1.0},
{0.1500, 0.0600, 1.0}
};
LPGAMMATABLE Gamma22[3];
cmsHPROFILE hsRGB;
cmsWhitePointFromTemp(6504, &D65);
Gamma22[0] = Gamma22[1] = Gamma22[2] = Build_sRGBGamma();
hsRGB = cmsCreateRGBProfile(&D65, &Rec709Primaries, Gamma22);
cmsFreeGamma(Gamma22[0]);
if (hsRGB == NULL) return NULL;
cmsAddTag(hsRGB, icSigDeviceMfgDescTag, (LPVOID) "(lcms internal)");
cmsAddTag(hsRGB, icSigDeviceModelDescTag, (LPVOID) "sRGB built-in");
cmsAddTag(hsRGB, icSigProfileDescriptionTag, (LPVOID) "sRGB built-in");
return hsRGB;
}
// Creates a fake Lab identity.
cmsHPROFILE LCMSEXPORT cmsCreateLabProfile(LPcmsCIExyY WhitePoint)
{
cmsHPROFILE hProfile;
LPLUT Lut;
hProfile = cmsCreateRGBProfile(WhitePoint == NULL ? cmsD50_xyY() : WhitePoint, NULL, NULL);
if (hProfile == NULL) return NULL;
cmsSetDeviceClass(hProfile, icSigAbstractClass);
cmsSetColorSpace(hProfile, icSigLabData);
cmsSetPCS(hProfile, icSigLabData);
cmsAddTag(hProfile, icSigDeviceMfgDescTag, (LPVOID) "(lcms internal)");
cmsAddTag(hProfile, icSigProfileDescriptionTag, (LPVOID) "lcms Lab identity");
cmsAddTag(hProfile, icSigDeviceModelDescTag, (LPVOID) "Lab built-in");
// An empty LUTs is all we need
Lut = Create3x3EmptyLUT();
if (Lut == NULL) {
cmsCloseProfile(hProfile);
return NULL;
}
cmsAddTag(hProfile, icSigAToB0Tag, (LPVOID) Lut);
cmsAddTag(hProfile, icSigBToA0Tag, (LPVOID) Lut);
cmsFreeLUT(Lut);
return hProfile;
}
cmsHPROFILE LCMSEXPORT cmsCreateGrayProfile(LPcmsCIExyY WhitePoint,
LPGAMMATABLE TransferFunction)
{
cmsHPROFILE hICC;
cmsCIEXYZ tmp;
hICC = _cmsCreateProfilePlaceholder();
if (!hICC) // can't allocate
return NULL;
cmsSetDeviceClass(hICC, icSigDisplayClass);
cmsSetColorSpace(hICC, icSigGrayData);
cmsSetPCS(hICC, icSigXYZData);
cmsSetRenderingIntent(hICC, INTENT_PERCEPTUAL);
// Implement profile using following tags:
//
// 1 icSigProfileDescriptionTag
// 2 icSigMediaWhitePointTag
// 6 icSigGrayTRCTag
// This conforms a standard Gray DisplayProfile
// Fill-in the tags
cmsAddTag(hICC, icSigDeviceMfgDescTag, (LPVOID) "(lcms internal)");
cmsAddTag(hICC, icSigProfileDescriptionTag, (LPVOID) "lcms gray virtual profile");
cmsAddTag(hICC, icSigDeviceModelDescTag, (LPVOID) "gray built-in");
if (WhitePoint) {
cmsxyY2XYZ(&tmp, WhitePoint);
cmsAddTag(hICC, icSigMediaWhitePointTag, (LPVOID) &tmp);
}
if (TransferFunction) {
// In case of gamma, we must dup' the table pointer
cmsAddTag(hICC, icSigGrayTRCTag, (LPVOID) TransferFunction);
}
return hICC;
}
static
cmsHPROFILE CreateNamedColorDevicelink(cmsHTRANSFORM xform)
{
_LPcmsTRANSFORM v = (_LPcmsTRANSFORM) xform;
cmsHPROFILE hICC;
cmsCIEXYZ WhitePoint;
int i, nColors;
size_t Size;
LPcmsNAMEDCOLORLIST nc2;
hICC = _cmsCreateProfilePlaceholder();
if (hICC == NULL) return NULL;
cmsSetRenderingIntent(hICC, v -> Intent);
cmsSetDeviceClass(hICC, icSigNamedColorClass);
cmsSetColorSpace(hICC, v ->ExitColorSpace);
cmsSetPCS(hICC, cmsGetPCS(v ->InputProfile));
cmsTakeMediaWhitePoint(&WhitePoint, v ->InputProfile);
cmsAddTag(hICC, icSigMediaWhitePointTag, &WhitePoint);
cmsAddTag(hICC, icSigDeviceMfgDescTag, (LPVOID) "LittleCMS");
cmsAddTag(hICC, icSigProfileDescriptionTag, (LPVOID) "Named color Device link");
cmsAddTag(hICC, icSigDeviceModelDescTag, (LPVOID) "Named color Device link");
nColors = cmsNamedColorCount(xform);
nc2 = cmsAllocNamedColorList(nColors);
Size = sizeof(cmsNAMEDCOLORLIST) + (sizeof(cmsNAMEDCOLOR) * (nColors-1));
CopyMemory(nc2, v->NamedColorList, Size);
nc2 ->ColorantCount = _cmsChannelsOf(v ->ExitColorSpace);
for (i=0; i < nColors; i++) {
cmsDoTransform(xform, &i, nc2 ->List[i].DeviceColorant, 1);
}
cmsAddTag(hICC, icSigNamedColor2Tag, (void*) nc2);
cmsFreeNamedColorList(nc2);
return hICC;
}
cmsHPROFILE LCMSEXPORT cmsCreateLinearizationDeviceLink(icColorSpaceSignature ColorSpace,
LPGAMMATABLE TransferFunctions[])
{
cmsHPROFILE hICC;
LPLUT Lut;
hICC = _cmsCreateProfilePlaceholder();
if (!hICC) // can't allocate
return NULL;
cmsSetDeviceClass(hICC, icSigLinkClass);
cmsSetColorSpace(hICC, ColorSpace);
cmsSetPCS(hICC, ColorSpace);
cmsSetRenderingIntent(hICC, INTENT_PERCEPTUAL);
// Creates a LUT with prelinearization step only
Lut = cmsAllocLUT();
if (Lut == NULL) return NULL;
// Set up channels
Lut ->InputChan = Lut ->OutputChan = _cmsChannelsOf(ColorSpace);
// Copy tables to LUT
cmsAllocLinearTable(Lut, TransferFunctions, 1);
// Create tags
cmsAddTag(hICC, icSigDeviceMfgDescTag, (LPVOID) "(lcms internal)");
cmsAddTag(hICC, icSigProfileDescriptionTag, (LPVOID) "lcms linearization device link");
cmsAddTag(hICC, icSigDeviceModelDescTag, (LPVOID) "linearization built-in");
cmsAddTag(hICC, icSigMediaWhitePointTag, (LPVOID) cmsD50_XYZ());
cmsAddTag(hICC, icSigAToB0Tag, (LPVOID) Lut);
// LUT is already on virtual profile
cmsFreeLUT(Lut);
// Ok, done
return hICC;
}
void updateCriticalTags(LPLCMSICCPROFILE Icc) {
LPVOID savedData = NULL;
int idx;
cmsCIEXYZ* dummy;
MemBuffer *memBuffer = (MemBuffer*) Icc->stream;
if(!memBuffer->needsUpdateCriticalTags) // Nothing to do
return;
idx = findTag(Icc, icSigMediaWhitePointTag);
dummy = cmsD50_XYZ();
if(idx >= 0) { // There is media white point already
cmsAddTag(Icc, icSigMediaWhitePointTag, dummy); // Force LCMS to read critical tags
free(Icc->TagPtrs[idx]); // Get rid of dummy media white point
Icc->TagPtrs[idx] = NULL;
} else {
cmsAddTag(Icc, icSigMediaWhitePointTag, dummy); // Force LCMS to read critical tags
// Get rid of dummy media white point
free(Icc->TagPtrs[Icc->TagCount-1]);
Icc->TagPtrs[Icc->TagCount-1] = NULL;
Icc->TagNames[Icc->TagCount-1] = 0;
Icc->TagSizes[Icc->TagCount-1] = 0;
Icc->TagOffsets[Icc->TagCount-1] = 0;
Icc->TagCount--;
}
memBuffer->needsUpdateCriticalTags = FALSE;
}
// Creates a fake XYZ identity
cmsHPROFILE LCMSEXPORT cmsCreateXYZProfile(void)
{
cmsHPROFILE hProfile;
LPLUT Lut;
hProfile = cmsCreateRGBProfile(cmsD50_xyY(), NULL, NULL);
if (hProfile == NULL) return NULL;
cmsSetDeviceClass(hProfile, icSigAbstractClass);
cmsSetColorSpace(hProfile, icSigXYZData);
cmsSetPCS(hProfile, icSigXYZData);
cmsAddTag(hProfile, icSigDeviceMfgDescTag, (LPVOID) "(lcms internal)");
cmsAddTag(hProfile, icSigProfileDescriptionTag, (LPVOID) "lcms XYZ identity");
cmsAddTag(hProfile, icSigDeviceModelDescTag, (LPVOID) "XYZ built-in");
// An empty LUTs is all we need
Lut = Create3x3EmptyLUT();
if (Lut == NULL) {
cmsCloseProfile(hProfile);
return NULL;
}
cmsAddTag(hProfile, icSigAToB0Tag, (LPVOID) Lut);
cmsAddTag(hProfile, icSigBToA0Tag, (LPVOID) Lut);
cmsAddTag(hProfile, icSigPreview0Tag, (LPVOID) Lut);
cmsFreeLUT(Lut);
return hProfile;
}
int main(int argc, char *argv[])
{
LPLUT AToB0;
cmsHPROFILE hProfile;
fprintf(stderr, "Creating grayer.icm...");
unlink("grayer.icm");
hProfile = cmsOpenProfileFromFile("grayer.icm", "w");
AToB0 = cmsAllocLUT();
cmsAlloc3DGrid(AToB0, GRID_POINTS, 3, 3);
cmsSample3DGrid(AToB0, Forward, NULL, 0);
cmsAddTag(hProfile, icSigAToB0Tag, AToB0);
cmsSetColorSpace(hProfile, icSigLabData);
cmsSetPCS(hProfile, icSigLabData);
cmsSetDeviceClass(hProfile, icSigAbstractClass);
cmsAddTag(hProfile, icSigProfileDescriptionTag, "Little cms Grayifier");
cmsAddTag(hProfile, icSigCopyrightTag, "Copyright (c) Marti Maria 2003. All rights reserved.");
cmsAddTag(hProfile, icSigDeviceMfgDescTag, "Little cms");
cmsAddTag(hProfile, icSigDeviceModelDescTag, "Grayifier abstract profile");
cmsCloseProfile(hProfile);
cmsFreeLUT(AToB0);
fprintf(stderr, "Done.\n");
return 0;
}
cmsHPROFILE LCMSEXPORT cmsCreateNULLProfile(void)
{
cmsHPROFILE hProfile;
LPLUT Lut;
LPGAMMATABLE EmptyTab;
hProfile = _cmsCreateProfilePlaceholder();
if (!hProfile) // can't allocate
return NULL;
cmsSetDeviceClass(hProfile, icSigOutputClass);
cmsSetColorSpace(hProfile, icSigGrayData);
cmsSetPCS(hProfile, icSigLabData);
// An empty LUTs is all we need
Lut = cmsAllocLUT();
if (Lut == NULL) {
cmsCloseProfile(hProfile);
return NULL;
}
Lut -> InputChan = 3;
Lut -> OutputChan = 1;
EmptyTab = cmsAllocGamma(2);
EmptyTab ->GammaTable[0] = 0;
EmptyTab ->GammaTable[1] = 0;
cmsAllocLinearTable(Lut, &EmptyTab, 2);
cmsAddTag(hProfile, icSigBToA0Tag, (LPVOID) Lut);
cmsFreeLUT(Lut);
cmsFreeGamma(EmptyTab);
return hProfile;
}
cmsHPROFILE LCMSEXPORT cmsCreateInkLimitingDeviceLink(icColorSpaceSignature ColorSpace,
double Limit)
{
cmsHPROFILE hICC;
LPLUT Lut;
if (ColorSpace != icSigCmykData) {
cmsSignalError(LCMS_ERRC_ABORTED, "InkLimiting: Only CMYK currently supported");
return NULL;
}
if (Limit < 0.0 || Limit > 400) {
cmsSignalError(LCMS_ERRC_WARNING, "InkLimiting: Limit should be between 0..400");
if (Limit < 0) Limit = 0;
if (Limit > 400) Limit = 400;
}
hICC = _cmsCreateProfilePlaceholder();
if (!hICC) // can't allocate
return NULL;
cmsSetDeviceClass(hICC, icSigLinkClass);
cmsSetColorSpace(hICC, ColorSpace);
cmsSetPCS(hICC, ColorSpace);
cmsSetRenderingIntent(hICC, INTENT_PERCEPTUAL);
// Creates a LUT with 3D grid only
Lut = cmsAllocLUT();
if (Lut == NULL) {
cmsCloseProfile(hICC);
return NULL;
}
cmsAlloc3DGrid(Lut, 17, _cmsChannelsOf(ColorSpace),
_cmsChannelsOf(ColorSpace));
if (!cmsSample3DGrid(Lut, InkLimitingSampler, (LPVOID) &Limit, 0)) {
// Shouldn't reach here
cmsFreeLUT(Lut);
cmsCloseProfile(hICC);
return NULL;
}
// Create tags
cmsAddTag(hICC, icSigDeviceMfgDescTag, (LPVOID) "(lcms internal)");
cmsAddTag(hICC, icSigProfileDescriptionTag, (LPVOID) "lcms ink limiting device link");
cmsAddTag(hICC, icSigDeviceModelDescTag, (LPVOID) "ink limiting built-in");
cmsAddTag(hICC, icSigMediaWhitePointTag, (LPVOID) cmsD50_XYZ());
cmsAddTag(hICC, icSigAToB0Tag, (LPVOID) Lut);
// LUT is already on virtual profile
cmsFreeLUT(Lut);
// Ok, done
return hICC;
}
static
BOOL CreateLUTS(LPMONITORPROFILERDATA sys, LPLUT* A2B, LPLUT* B2A)
{
LPLUT AToB0 = cmsAllocLUT();
LPLUT BToA0 = cmsAllocLUT();
LPGAMMATABLE LabG;
cmsCIExyY xyY;
cmsAlloc3DGrid(AToB0, sys->hdr.CLUTPoints, 3, 3);
cmsAlloc3DGrid(BToA0, sys->hdr.CLUTPoints, 3, 3);
/* cmsAllocLinearTable(AToB0, sys -> Prelinearization, 1); */
sys->ReverseTables[0] = cmsReverseGamma(4096, sys ->Prelinearization[0]);
sys->ReverseTables[1] = cmsReverseGamma(4096, sys ->Prelinearization[1]);
sys->ReverseTables[2] = cmsReverseGamma(4096, sys ->Prelinearization[2]);
/* Prelinearization */
LabG = cmsBuildGamma(4096, 3.0);
sys -> PreLab[0] = cmsJoinGammaEx(LabG, sys ->Prelinearization[0], 4096);
sys -> PreLab[1] = cmsJoinGammaEx(LabG, sys ->Prelinearization[1], 4096);
sys -> PreLab[2] = cmsJoinGammaEx(LabG, sys ->Prelinearization[2], 4096);
sys -> PreLabRev[0] = cmsJoinGammaEx(sys ->Prelinearization[0], LabG, 4096);
sys -> PreLabRev[1] = cmsJoinGammaEx(sys ->Prelinearization[1], LabG, 4096);
sys -> PreLabRev[2] = cmsJoinGammaEx(sys ->Prelinearization[2], LabG, 4096);
cmsFreeGamma(LabG);
cmsAllocLinearTable(AToB0, sys->PreLabRev, 1);
cmsAllocLinearTable(BToA0, sys->PreLab, 2);
/* Set CIECAM97s parameters */
sys -> hdr.device.whitePoint.X = sys -> hdr.WhitePoint.X * 100.;
sys -> hdr.device.whitePoint.Y = sys -> hdr.WhitePoint.Y * 100.;
sys -> hdr.device.whitePoint.Z = sys -> hdr.WhitePoint.Z * 100.;
/* Normalize White point for CIECAM97s model */
cmsXYZ2xyY(&xyY, &sys -> hdr.device.whitePoint);
xyY.Y = 100.;
cmsxyY2XYZ(&sys -> hdr.device.whitePoint, &xyY);
sys->hdr.hDevice = cmsCIECAM97sInit(&sys->hdr.device);
sys->hdr.hPCS = cmsCIECAM97sInit(&sys->hdr.PCS);
cmsSample3DGrid(AToB0, RegressionSamplerA2B, sys, 0);
cmsSample3DGrid(BToA0, RegressionSamplerB2A, sys, 0);
cmsCIECAM97sDone(sys->hdr.hDevice);
cmsCIECAM97sDone(sys->hdr.hPCS);
cmsAddTag(sys->hdr.hProfile, icSigAToB0Tag, AToB0);
cmsAddTag(sys->hdr.hProfile, icSigBToA0Tag, BToA0);
/* This is the 0xff00 trick to map white at lattice point */
BToA0 ->Matrix.v[0].n[0] = DOUBLE_TO_FIXED((65535.0 / 65280.0));
*A2B = AToB0;
*B2A = BToA0;
cmsFreeGammaTriple(sys->ReverseTables);
cmsFreeGammaTriple(sys->PreLab);
cmsFreeGammaTriple(sys->PreLabRev);
return true;
}
cmsHPROFILE LCMSEXPORT cmsTransform2DeviceLink(cmsHTRANSFORM hTransform, DWORD dwFlags)
{
cmsHPROFILE hICC;
_LPcmsTRANSFORM v = (_LPcmsTRANSFORM) hTransform;
LPLUT Lut;
LCMSBOOL MustFreeLUT;
LPcmsNAMEDCOLORLIST InputColorant = NULL;
LPcmsNAMEDCOLORLIST OutputColorant = NULL;
// Check if is a named color transform
if (cmsGetDeviceClass(v ->InputProfile) == icSigNamedColorClass) {
return CreateNamedColorDevicelink(hTransform);
}
if (v ->DeviceLink) {
Lut = v -> DeviceLink;
MustFreeLUT = FALSE;
}
else {
Lut = _cmsPrecalculateDeviceLink(hTransform, dwFlags);
if (!Lut) return NULL;
MustFreeLUT = TRUE;
}
hICC = _cmsCreateProfilePlaceholder();
if (!hICC) { // can't allocate
if (MustFreeLUT) cmsFreeLUT(Lut);
return NULL;
}
FixColorSpaces(hICC, v -> EntryColorSpace, v -> ExitColorSpace, dwFlags);
cmsSetRenderingIntent(hICC, v -> Intent);
// Implement devicelink profile using following tags:
//
// 1 icSigProfileDescriptionTag
// 2 icSigMediaWhitePointTag
// 3 icSigAToB0Tag
cmsAddTag(hICC, icSigDeviceMfgDescTag, (LPVOID) "LittleCMS");
cmsAddTag(hICC, icSigProfileDescriptionTag, (LPVOID) "Device link");
cmsAddTag(hICC, icSigDeviceModelDescTag, (LPVOID) "Device link");
cmsAddTag(hICC, icSigMediaWhitePointTag, (LPVOID) cmsD50_XYZ());
if (cmsGetDeviceClass(hICC) == icSigOutputClass) {
cmsAddTag(hICC, icSigBToA0Tag, (LPVOID) Lut);
}
else
cmsAddTag(hICC, icSigAToB0Tag, (LPVOID) Lut);
// Try to read input and output colorant table
if (cmsIsTag(v ->InputProfile, icSigColorantTableTag)) {
// Input table can only come in this way.
InputColorant = cmsReadColorantTable(v ->InputProfile, icSigColorantTableTag);
}
// Output is a little bit more complex.
if (cmsGetDeviceClass(v ->OutputProfile) == icSigLinkClass) {
// This tag may exist only on devicelink profiles.
if (cmsIsTag(v ->OutputProfile, icSigColorantTableOutTag)) {
OutputColorant = cmsReadColorantTable(v ->OutputProfile, icSigColorantTableOutTag);
}
} else {
if (cmsIsTag(v ->OutputProfile, icSigColorantTableTag)) {
OutputColorant = cmsReadColorantTable(v ->OutputProfile, icSigColorantTableTag);
}
}
if (InputColorant)
cmsAddTag(hICC, icSigColorantTableTag, InputColorant);
if (OutputColorant)
cmsAddTag(hICC, icSigColorantTableOutTag, OutputColorant);
if (MustFreeLUT) cmsFreeLUT(Lut);
if (InputColorant) cmsFreeNamedColorList(InputColorant);
if (OutputColorant) cmsFreeNamedColorList(OutputColorant);
return hICC;
}
int main(int argc, char *argv[])
{
int i, nargs;
cmsHPROFILE Profiles[257];
cmsHPROFILE hProfile;
DWORD dwFlags = 0;
cmsHTRANSFORM hTransform;
fprintf(stderr, "little cms device link generator - v1.7\n");
HandleSwitches(argc, argv);
cmsSetErrorHandler(MyErrorHandler);
nargs = (argc - xoptind);
if (nargs < 1)
Help(0);
if (nargs > 255)
FatalError("ERROR: Holy profile! what are you trying to do with so many profiles?");
for (i=0; i < nargs; i++) {
Profiles[i] = OpenProfile(argv[i + xoptind]);
}
switch (PrecalcMode) {
case 0: dwFlags |= cmsFLAGS_LOWRESPRECALC; break;
case 2: dwFlags |= cmsFLAGS_HIGHRESPRECALC; break;
case 1:
if (NumOfGridPoints > 0)
dwFlags |= cmsFLAGS_GRIDPOINTS(NumOfGridPoints);
break;
default: FatalError("ERROR: Unknown precalculation mode '%d'", PrecalcMode);
}
if (BlackPointCompensation)
dwFlags |= cmsFLAGS_BLACKPOINTCOMPENSATION;
if (BlackPreservation > 0) {
dwFlags |= cmsFLAGS_PRESERVEBLACK;
cmsSetCMYKPreservationStrategy(BlackPreservation-1);
}
if (TagResult)
dwFlags |= cmsFLAGS_GUESSDEVICECLASS;
if (NoPrelinearization)
dwFlags |= cmsFLAGS_NOPRELINEARIZATION;
if (InkLimit != 400.0) {
cmsHPROFILE hInkLimit = cmsCreateInkLimitingDeviceLink(
cmsGetColorSpace(Profiles[nargs-1]), InkLimit);
Profiles[nargs++] = hInkLimit;
}
if (lUse8bits) dwFlags |= cmsFLAGS_NOPRELINEARIZATION;
hTransform = cmsCreateMultiprofileTransform(Profiles, nargs, 0, 0, Intent, dwFlags);
if (hTransform) {
size_t size = sizeof(int) + nargs * sizeof(cmsPSEQDESC);
LPcmsSEQ pseq = (LPcmsSEQ) _cmsMalloc(size);
ZeroMemory(pseq, size);
pseq ->n = nargs;
for (i=0; i < nargs; i++) {
strcpy(pseq ->seq[i].Manufacturer, cmsTakeManufacturer(Profiles[i]));
strcpy(pseq ->seq[1].Model, cmsTakeModel(Profiles[i]));
}
hProfile = cmsTransform2DeviceLink(hTransform, dwFlags);
cmsAddTag(hProfile, icSigProfileDescriptionTag, (LPVOID) Description);
cmsAddTag(hProfile, icSigCopyrightTag, (LPVOID) "Generated by littlecms icclink. No copyright, use freely");
cmsAddTag(hProfile, icSigProfileSequenceDescTag, (LPVOID) pseq);
if (lUse8bits) _cmsSetLUTdepth(hProfile, 8);
if (_cmsSaveProfile(hProfile, cOutProf))
fprintf(stderr, "Ok");
else
fprintf(stderr, "Error saving file!");
cmsCloseProfile(hProfile);
_cmsFree(pseq);
}
cmsDeleteTransform(hTransform);
for (i=0; i < nargs; i++) {
cmsCloseProfile(Profiles[i]);
}
return 0;
}
BOOL cmsxMonitorProfilerDo(LPMONITORPROFILERDATA sys)
{
cmsCIExyY White;
LPLUT AToB0, BToA0;
AToB0 = BToA0 = NULL;
if (!*sys -> hdr.OutputProfileFile)
return false;
if (sys->hdr.ReferenceSheet[0] || sys->hdr.MeasurementSheet[0]) {
if (sys->hdr.printf) {
sys->hdr.printf("Loading sheets...");
if (sys->hdr.ReferenceSheet[0])
sys->hdr.printf("Reference sheet: %s", sys->hdr.ReferenceSheet);
if (sys->hdr.MeasurementSheet[0])
sys->hdr.printf("Measurement sheet: %s", sys->hdr.MeasurementSheet);
}
if (!cmsxComputeMatrixShaper(sys -> hdr.ReferenceSheet,
sys -> hdr.MeasurementSheet,
MEDIUM_TRANSMISSIVE,
sys -> Prelinearization,
&sys -> hdr.WhitePoint,
&sys -> hdr.BlackPoint,
&sys -> hdr.Primaries)) return false;
if (sys->hdr.printf) {
char Buffer[1024];
_cmsIdentifyWhitePoint(Buffer, &sys ->hdr.WhitePoint);
sys->hdr.printf("%s", Buffer);
sys->hdr.printf("Primaries: R:%1.2g, %1.2g G:%1.2g, %1.2g B:%1.2g, %1.2g",
sys->hdr.Primaries.Red.x,sys->hdr.Primaries.Red.y,
sys->hdr.Primaries.Green.x, sys->hdr.Primaries.Green.y,
sys->hdr.Primaries.Blue.x, sys->hdr.Primaries.Blue.y);
}
}
CreatePrimaryMatrices(sys);
cmsXYZ2xyY(&White, &sys->hdr.WhitePoint);
sys->hdr.hProfile = cmsCreateRGBProfile(&White,
&sys-> hdr.Primaries,
sys -> Prelinearization);
cmsSetDeviceClass(sys->hdr.hProfile, sys->hdr.DeviceClass);
if (sys -> hdr.lUseCIECAM97s)
sys->hdr.PCSType = PT_Lab;
else
sys->hdr.PCSType = PT_XYZ;
cmsSetPCS(sys->hdr.hProfile, _cmsICCcolorSpace(sys->hdr.PCSType));
if (sys -> hdr.lUseCIECAM97s)
CreateLUTS(sys, &AToB0, &BToA0);
cmsxEmbedTextualInfo(&sys ->hdr);
cmsAddTag(sys->hdr.hProfile, icSigMediaWhitePointTag, &sys->hdr.WhitePoint);
cmsAddTag(sys->hdr.hProfile, icSigMediaBlackPointTag, &sys->hdr.BlackPoint);
if (sys->hdr.ProfileVerbosityLevel >= 2) {
cmsxEmbedCharTarget(&sys ->hdr);
}
_cmsSaveProfile(sys->hdr.hProfile, sys->hdr.OutputProfileFile);
cmsCloseProfile(sys->hdr.hProfile);
sys->hdr.hProfile = NULL;
if (AToB0) cmsFreeLUT(AToB0);
if (BToA0) cmsFreeLUT(BToA0);
if (sys ->Prelinearization[0])
cmsFreeGammaTriple(sys -> Prelinearization);
return true;
}
cmsHPROFILE LCMSEXPORT cmsCreateRGBProfile(LPcmsCIExyY WhitePoint,
LPcmsCIExyYTRIPLE Primaries,
LPGAMMATABLE TransferFunction[3])
{
cmsHPROFILE hICC;
cmsCIEXYZ tmp;
MAT3 MColorants;
cmsCIEXYZTRIPLE Colorants;
cmsCIExyY MaxWhite;
hICC = _cmsCreateProfilePlaceholder();
if (!hICC) // can't allocate
return NULL;
cmsSetDeviceClass(hICC, icSigDisplayClass);
cmsSetColorSpace(hICC, icSigRgbData);
cmsSetPCS(hICC, icSigXYZData);
cmsSetRenderingIntent(hICC, INTENT_PERCEPTUAL);
// Implement profile using following tags:
//
// 1 icSigProfileDescriptionTag
// 2 icSigMediaWhitePointTag
// 3 icSigRedColorantTag
// 4 icSigGreenColorantTag
// 5 icSigBlueColorantTag
// 6 icSigRedTRCTag
// 7 icSigGreenTRCTag
// 8 icSigBlueTRCTag
// This conforms a standard RGB DisplayProfile as says ICC, and then I add
// 9 icSigChromaticityTag
// As addendum II
// Fill-in the tags
cmsAddTag(hICC, icSigDeviceMfgDescTag, (LPVOID) "(lcms internal)");
cmsAddTag(hICC, icSigProfileDescriptionTag, (LPVOID) "lcms RGB virtual profile");
cmsAddTag(hICC, icSigDeviceModelDescTag, (LPVOID) "rgb built-in");
if (WhitePoint) {
cmsxyY2XYZ(&tmp, WhitePoint);
cmsAddTag(hICC, icSigMediaWhitePointTag, (LPVOID) &tmp);
}
if (WhitePoint && Primaries) {
MaxWhite.x = WhitePoint -> x;
MaxWhite.y = WhitePoint -> y;
MaxWhite.Y = 1.0;
if (!cmsBuildRGB2XYZtransferMatrix(&MColorants, &MaxWhite, Primaries))
{
cmsCloseProfile(hICC);
return NULL;
}
cmsAdaptMatrixToD50(&MColorants, &MaxWhite);
Colorants.Red.X = MColorants.v[0].n[0];
Colorants.Red.Y = MColorants.v[1].n[0];
Colorants.Red.Z = MColorants.v[2].n[0];
Colorants.Green.X = MColorants.v[0].n[1];
Colorants.Green.Y = MColorants.v[1].n[1];
Colorants.Green.Z = MColorants.v[2].n[1];
Colorants.Blue.X = MColorants.v[0].n[2];
Colorants.Blue.Y = MColorants.v[1].n[2];
Colorants.Blue.Z = MColorants.v[2].n[2];
cmsAddTag(hICC, icSigRedColorantTag, (LPVOID) &Colorants.Red);
cmsAddTag(hICC, icSigBlueColorantTag, (LPVOID) &Colorants.Blue);
cmsAddTag(hICC, icSigGreenColorantTag, (LPVOID) &Colorants.Green);
}
if (TransferFunction) {
// In case of gamma, we must dup' the table pointer
cmsAddTag(hICC, icSigRedTRCTag, (LPVOID) TransferFunction[0]);
cmsAddTag(hICC, icSigGreenTRCTag, (LPVOID) TransferFunction[1]);
cmsAddTag(hICC, icSigBlueTRCTag, (LPVOID) TransferFunction[2]);
}
if (Primaries) {
cmsAddTag(hICC, icSigChromaticityTag, (LPVOID) Primaries);
}
return hICC;
}
cmsHPROFILE LCMSEXPORT f_cmsCreateBCHSWabstractProfile(int nLUTPoints,
double Exposure,
double Bright,
double Contrast,
double Hue,
double Saturation,
LPcmsCIExyY current_wp,
LPcmsCIExyY destination_wp,
LPGAMMATABLE Tables [])
{
cmsHPROFILE hICC;
LPLUT Lut;
BCHSWADJUSTS bchsw;
cmsCIExyY WhitePnt;
bchsw.Exposure = Exposure;
bchsw.Brightness = Bright;
bchsw.Contrast = Contrast;
bchsw.Hue = Hue;
bchsw.Saturation = Saturation;
cmsxyY2XYZ(&bchsw.WPsrc, current_wp);
cmsxyY2XYZ(&bchsw.WPdest, destination_wp);
hICC = _cmsCreateProfilePlaceholder();
if (!hICC) // can't allocate
return NULL;
cmsSetDeviceClass(hICC, icSigAbstractClass);
cmsSetColorSpace(hICC, icSigLabData);
cmsSetPCS(hICC, icSigLabData);
cmsSetRenderingIntent(hICC, INTENT_PERCEPTUAL);
// Creates a LUT with 3D grid only
Lut = cmsAllocLUT();
cmsAlloc3DGrid(Lut, nLUTPoints, 3, 3);
if (Tables != NULL)
cmsAllocLinearTable (Lut, Tables, 1);
if (!cmsSample3DGrid(Lut, bchswSampler, (LPVOID) &bchsw, 0)) {
// Shouldn't reach here
cmsFreeLUT(Lut);
cmsCloseProfile(hICC);
return NULL;
}
// Create tags
cmsAddTag(hICC, icSigDeviceMfgDescTag, (LPVOID) "(f-spot internal)");
cmsAddTag(hICC, icSigProfileDescriptionTag, (LPVOID) "f-spot BCHSW abstract profile");
cmsAddTag(hICC, icSigDeviceModelDescTag, (LPVOID) "BCHSW built-in");
cmsAddTag(hICC, icSigMediaWhitePointTag, (LPVOID) cmsD50_XYZ());
cmsAddTag(hICC, icSigAToB0Tag, (LPVOID) Lut);
// LUT is already on virtual profile
cmsFreeLUT(Lut);
// Ok, done
return hICC;
}
int main(int argc, char *argv[])
{
LPLUT AToB0, BToA0;
LPGAMMATABLE PreLinear[3];
LPGAMMATABLE Lin;
CARGO Cargo;
cmsHPROFILE hProfile;
cmsCIEXYZ wp;
fprintf(stderr, "Creating lcmscmy.icm...");
wp.X = 55.6549;
wp.Y = 59.0485;
wp.Z = 72.5494;
cmsXYZ2xyY(&Cus, &wp);
InitCargo(&Cargo);
hProfile = cmsCreateLabProfile(&Cus);
// Create linearization
Lin = CreateLinear();
PreLinear[0] = Lin;
PreLinear[1] = Lin;
PreLinear[2] = Lin;
AToB0 = cmsAllocLUT();
BToA0 = cmsAllocLUT();
cmsAlloc3DGrid(AToB0, 33, 3, 3);
cmsAlloc3DGrid(BToA0, 33, 3, 3);
cmsSample3DGrid(AToB0, Reverse, &Cargo, 0);
cmsSample3DGrid(BToA0, Forward, &Cargo, 0);
cmsAllocLinearTable(AToB0, PreLinear, 1);
cmsAllocLinearTable(BToA0, PreLinear, 2);
cmsAddTag(hProfile, icSigAToB0Tag, AToB0);
cmsAddTag(hProfile, icSigBToA0Tag, BToA0);
cmsSetColorSpace(hProfile, icSigCmyData);
cmsAddTag(hProfile, icSigProfileDescriptionTag, "Little cms CMY mixing");
cmsAddTag(hProfile, icSigCopyrightTag, "Copyright (c) Marti Maria, 2002. All rights reserved.");
cmsAddTag(hProfile, icSigDeviceMfgDescTag, "Little cms");
cmsAddTag(hProfile, icSigDeviceModelDescTag, "CMY mixing");
_cmsSaveProfile(hProfile, "lcmscmy.icm");
cmsFreeGamma(Lin);
cmsFreeLUT(AToB0);
cmsFreeLUT(BToA0);
cmsCloseProfile(hProfile);
FreeCargo(&Cargo);
fprintf(stderr, "Done.\n");
return 0;
}
