| //--------------------------------------------------------------------------------- | |
| // | |
| // Little Color Management System | |
| // Copyright (c) 1998-2020 Marti Maria Saguer | |
| // | |
| // 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. | |
| // | |
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
| // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO | |
| // THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
| // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE | |
| // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION | |
| // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION | |
| // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
| // | |
| //--------------------------------------------------------------------------------- | |
| // | |
| #include "lcms2_internal.h" | |
| // Virtual (built-in) profiles | |
| // ----------------------------------------------------------------------------------- | |
| static | |
| cmsBool SetTextTags(cmsHPROFILE hProfile, const wchar_t* Description) | |
| { | |
| cmsMLU *DescriptionMLU, *CopyrightMLU; | |
| cmsBool rc = FALSE; | |
| cmsContext ContextID = cmsGetProfileContextID(hProfile); | |
| DescriptionMLU = cmsMLUalloc(ContextID, 1); | |
| CopyrightMLU = cmsMLUalloc(ContextID, 1); | |
| if (DescriptionMLU == NULL || CopyrightMLU == NULL) goto Error; | |
| if (!cmsMLUsetWide(DescriptionMLU, "en", "US", Description)) goto Error; | |
| if (!cmsMLUsetWide(CopyrightMLU, "en", "US", L"No copyright, use freely")) goto Error; | |
| if (!cmsWriteTag(hProfile, cmsSigProfileDescriptionTag, DescriptionMLU)) goto Error; | |
| if (!cmsWriteTag(hProfile, cmsSigCopyrightTag, CopyrightMLU)) goto Error; | |
| rc = TRUE; | |
| Error: | |
| if (DescriptionMLU) | |
| cmsMLUfree(DescriptionMLU); | |
| if (CopyrightMLU) | |
| cmsMLUfree(CopyrightMLU); | |
| return rc; | |
| } | |
| static | |
| cmsBool SetSeqDescTag(cmsHPROFILE hProfile, const char* Model) | |
| { | |
| cmsBool rc = FALSE; | |
| cmsContext ContextID = cmsGetProfileContextID(hProfile); | |
| cmsSEQ* Seq = cmsAllocProfileSequenceDescription(ContextID, 1); | |
| if (Seq == NULL) return FALSE; | |
| Seq->seq[0].deviceMfg = (cmsSignature) 0; | |
| Seq->seq[0].deviceModel = (cmsSignature) 0; | |
| #ifdef CMS_DONT_USE_INT64 | |
| Seq->seq[0].attributes[0] = 0; | |
| Seq->seq[0].attributes[1] = 0; | |
| #else | |
| Seq->seq[0].attributes = 0; | |
| #endif | |
| Seq->seq[0].technology = (cmsTechnologySignature) 0; | |
| cmsMLUsetASCII( Seq->seq[0].Manufacturer, cmsNoLanguage, cmsNoCountry, "Little CMS"); | |
| cmsMLUsetASCII( Seq->seq[0].Model, cmsNoLanguage, cmsNoCountry, Model); | |
| if (!_cmsWriteProfileSequence(hProfile, Seq)) goto Error; | |
| rc = TRUE; | |
| Error: | |
| if (Seq) | |
| cmsFreeProfileSequenceDescription(Seq); | |
| return rc; | |
| } | |
| // This function creates a profile based on White point, primaries and | |
| // transfer functions. | |
| cmsHPROFILE CMSEXPORT cmsCreateRGBProfileTHR(cmsContext ContextID, | |
| const cmsCIExyY* WhitePoint, | |
| const cmsCIExyYTRIPLE* Primaries, | |
| cmsToneCurve* const TransferFunction[3]) | |
| { | |
| cmsHPROFILE hICC; | |
| cmsMAT3 MColorants; | |
| cmsCIEXYZTRIPLE Colorants; | |
| cmsCIExyY MaxWhite; | |
| cmsMAT3 CHAD; | |
| cmsCIEXYZ WhitePointXYZ; | |
| hICC = cmsCreateProfilePlaceholder(ContextID); | |
| if (!hICC) // can't allocate | |
| return NULL; | |
| cmsSetProfileVersion(hICC, 4.3); | |
| cmsSetDeviceClass(hICC, cmsSigDisplayClass); | |
| cmsSetColorSpace(hICC, cmsSigRgbData); | |
| cmsSetPCS(hICC, cmsSigXYZData); | |
| cmsSetHeaderRenderingIntent(hICC, INTENT_PERCEPTUAL); | |
| // Implement profile using following tags: | |
| // | |
| // 1 cmsSigProfileDescriptionTag | |
| // 2 cmsSigMediaWhitePointTag | |
| // 3 cmsSigRedColorantTag | |
| // 4 cmsSigGreenColorantTag | |
| // 5 cmsSigBlueColorantTag | |
| // 6 cmsSigRedTRCTag | |
| // 7 cmsSigGreenTRCTag | |
| // 8 cmsSigBlueTRCTag | |
| // 9 Chromatic adaptation Tag | |
| // This conforms a standard RGB DisplayProfile as says ICC, and then I add (As per addendum II) | |
| // 10 cmsSigChromaticityTag | |
| if (!SetTextTags(hICC, L"RGB built-in")) goto Error; | |
| if (WhitePoint) { | |
| if (!cmsWriteTag(hICC, cmsSigMediaWhitePointTag, cmsD50_XYZ())) goto Error; | |
| cmsxyY2XYZ(&WhitePointXYZ, WhitePoint); | |
| _cmsAdaptationMatrix(&CHAD, NULL, &WhitePointXYZ, cmsD50_XYZ()); | |
| // This is a V4 tag, but many CMM does read and understand it no matter which version | |
| if (!cmsWriteTag(hICC, cmsSigChromaticAdaptationTag, (void*) &CHAD)) goto Error; | |
| } | |
| if (WhitePoint && Primaries) { | |
| MaxWhite.x = WhitePoint -> x; | |
| MaxWhite.y = WhitePoint -> y; | |
| MaxWhite.Y = 1.0; | |
| if (!_cmsBuildRGB2XYZtransferMatrix(&MColorants, &MaxWhite, Primaries)) goto Error; | |
| 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]; | |
| if (!cmsWriteTag(hICC, cmsSigRedColorantTag, (void*) &Colorants.Red)) goto Error; | |
| if (!cmsWriteTag(hICC, cmsSigBlueColorantTag, (void*) &Colorants.Blue)) goto Error; | |
| if (!cmsWriteTag(hICC, cmsSigGreenColorantTag, (void*) &Colorants.Green)) goto Error; | |
| } | |
| if (TransferFunction) { | |
| // Tries to minimize space. Thanks to Richard Hughes for this nice idea | |
| if (!cmsWriteTag(hICC, cmsSigRedTRCTag, (void*) TransferFunction[0])) goto Error; | |
| if (TransferFunction[1] == TransferFunction[0]) { | |
| if (!cmsLinkTag (hICC, cmsSigGreenTRCTag, cmsSigRedTRCTag)) goto Error; | |
| } else { | |
| if (!cmsWriteTag(hICC, cmsSigGreenTRCTag, (void*) TransferFunction[1])) goto Error; | |
| } | |
| if (TransferFunction[2] == TransferFunction[0]) { | |
| if (!cmsLinkTag (hICC, cmsSigBlueTRCTag, cmsSigRedTRCTag)) goto Error; | |
| } else { | |
| if (!cmsWriteTag(hICC, cmsSigBlueTRCTag, (void*) TransferFunction[2])) goto Error; | |
| } | |
| } | |
| if (Primaries) { | |
| if (!cmsWriteTag(hICC, cmsSigChromaticityTag, (void*) Primaries)) goto Error; | |
| } | |
| return hICC; | |
| Error: | |
| if (hICC) | |
| cmsCloseProfile(hICC); | |
| return NULL; | |
| } | |
| cmsHPROFILE CMSEXPORT cmsCreateRGBProfile(const cmsCIExyY* WhitePoint, | |
| const cmsCIExyYTRIPLE* Primaries, | |
| cmsToneCurve* const TransferFunction[3]) | |
| { | |
| return cmsCreateRGBProfileTHR(NULL, WhitePoint, Primaries, TransferFunction); | |
| } | |
| // This function creates a profile based on White point and transfer function. | |
| cmsHPROFILE CMSEXPORT cmsCreateGrayProfileTHR(cmsContext ContextID, | |
| const cmsCIExyY* WhitePoint, | |
| const cmsToneCurve* TransferFunction) | |
| { | |
| cmsHPROFILE hICC; | |
| cmsCIEXYZ tmp; | |
| hICC = cmsCreateProfilePlaceholder(ContextID); | |
| if (!hICC) // can't allocate | |
| return NULL; | |
| cmsSetProfileVersion(hICC, 4.3); | |
| cmsSetDeviceClass(hICC, cmsSigDisplayClass); | |
| cmsSetColorSpace(hICC, cmsSigGrayData); | |
| cmsSetPCS(hICC, cmsSigXYZData); | |
| cmsSetHeaderRenderingIntent(hICC, INTENT_PERCEPTUAL); | |
| // Implement profile using following tags: | |
| // | |
| // 1 cmsSigProfileDescriptionTag | |
| // 2 cmsSigMediaWhitePointTag | |
| // 3 cmsSigGrayTRCTag | |
| // This conforms a standard Gray DisplayProfile | |
| // Fill-in the tags | |
| if (!SetTextTags(hICC, L"gray built-in")) goto Error; | |
| if (WhitePoint) { | |
| cmsxyY2XYZ(&tmp, WhitePoint); | |
| if (!cmsWriteTag(hICC, cmsSigMediaWhitePointTag, (void*) &tmp)) goto Error; | |
| } | |
| if (TransferFunction) { | |
| if (!cmsWriteTag(hICC, cmsSigGrayTRCTag, (void*) TransferFunction)) goto Error; | |
| } | |
| return hICC; | |
| Error: | |
| if (hICC) | |
| cmsCloseProfile(hICC); | |
| return NULL; | |
| } | |
| cmsHPROFILE CMSEXPORT cmsCreateGrayProfile(const cmsCIExyY* WhitePoint, | |
| const cmsToneCurve* TransferFunction) | |
| { | |
| return cmsCreateGrayProfileTHR(NULL, WhitePoint, TransferFunction); | |
| } | |
| // This is a devicelink operating in the target colorspace with as many transfer functions as components | |
| cmsHPROFILE CMSEXPORT cmsCreateLinearizationDeviceLinkTHR(cmsContext ContextID, | |
| cmsColorSpaceSignature ColorSpace, | |
| cmsToneCurve* const TransferFunctions[]) | |
| { | |
| cmsHPROFILE hICC; | |
| cmsPipeline* Pipeline; | |
| cmsUInt32Number nChannels; | |
| hICC = cmsCreateProfilePlaceholder(ContextID); | |
| if (!hICC) | |
| return NULL; | |
| cmsSetProfileVersion(hICC, 4.3); | |
| cmsSetDeviceClass(hICC, cmsSigLinkClass); | |
| cmsSetColorSpace(hICC, ColorSpace); | |
| cmsSetPCS(hICC, ColorSpace); | |
| cmsSetHeaderRenderingIntent(hICC, INTENT_PERCEPTUAL); | |
| // Set up channels | |
| nChannels = cmsChannelsOf(ColorSpace); | |
| // Creates a Pipeline with prelinearization step only | |
| Pipeline = cmsPipelineAlloc(ContextID, nChannels, nChannels); | |
| if (Pipeline == NULL) goto Error; | |
| // Copy tables to Pipeline | |
| if (!cmsPipelineInsertStage(Pipeline, cmsAT_BEGIN, cmsStageAllocToneCurves(ContextID, nChannels, TransferFunctions))) | |
| goto Error; | |
| // Create tags | |
| if (!SetTextTags(hICC, L"Linearization built-in")) goto Error; | |
| if (!cmsWriteTag(hICC, cmsSigAToB0Tag, (void*) Pipeline)) goto Error; | |
| if (!SetSeqDescTag(hICC, "Linearization built-in")) goto Error; | |
| // Pipeline is already on virtual profile | |
| cmsPipelineFree(Pipeline); | |
| // Ok, done | |
| return hICC; | |
| Error: | |
| cmsPipelineFree(Pipeline); | |
| if (hICC) | |
| cmsCloseProfile(hICC); | |
| return NULL; | |
| } | |
| cmsHPROFILE CMSEXPORT cmsCreateLinearizationDeviceLink(cmsColorSpaceSignature ColorSpace, | |
| cmsToneCurve* const TransferFunctions[]) | |
| { | |
| return cmsCreateLinearizationDeviceLinkTHR(NULL, ColorSpace, TransferFunctions); | |
| } | |
| // Ink-limiting algorithm | |
| // | |
| // Sum = C + M + Y + K | |
| // If Sum > InkLimit | |
| // Ratio= 1 - (Sum - InkLimit) / (C + M + Y) | |
| // if Ratio <0 | |
| // Ratio=0 | |
| // endif | |
| // Else | |
| // Ratio=1 | |
| // endif | |
| // | |
| // C = Ratio * C | |
| // M = Ratio * M | |
| // Y = Ratio * Y | |
| // K: Does not change | |
| static | |
| int InkLimitingSampler(CMSREGISTER const cmsUInt16Number In[], CMSREGISTER cmsUInt16Number Out[], CMSREGISTER void* Cargo) | |
| { | |
| cmsFloat64Number InkLimit = *(cmsFloat64Number *) Cargo; | |
| cmsFloat64Number SumCMY, SumCMYK, Ratio; | |
| InkLimit = (InkLimit * 655.35); | |
| SumCMY = In[0] + In[1] + In[2]; | |
| SumCMYK = SumCMY + In[3]; | |
| if (SumCMYK > InkLimit) { | |
| Ratio = 1 - ((SumCMYK - InkLimit) / SumCMY); | |
| if (Ratio < 0) | |
| Ratio = 0; | |
| } | |
| else Ratio = 1; | |
| Out[0] = _cmsQuickSaturateWord(In[0] * Ratio); // C | |
| Out[1] = _cmsQuickSaturateWord(In[1] * Ratio); // M | |
| Out[2] = _cmsQuickSaturateWord(In[2] * Ratio); // Y | |
| Out[3] = In[3]; // K (untouched) | |
| return TRUE; | |
| } | |
| // This is a devicelink operating in CMYK for ink-limiting | |
| cmsHPROFILE CMSEXPORT cmsCreateInkLimitingDeviceLinkTHR(cmsContext ContextID, | |
| cmsColorSpaceSignature ColorSpace, | |
| cmsFloat64Number Limit) | |
| { | |
| cmsHPROFILE hICC; | |
| cmsPipeline* LUT; | |
| cmsStage* CLUT; | |
| cmsUInt32Number nChannels; | |
| if (ColorSpace != cmsSigCmykData) { | |
| cmsSignalError(ContextID, cmsERROR_COLORSPACE_CHECK, "InkLimiting: Only CMYK currently supported"); | |
| return NULL; | |
| } | |
| if (Limit < 0.0 || Limit > 400) { | |
| cmsSignalError(ContextID, cmsERROR_RANGE, "InkLimiting: Limit should be between 0..400"); | |
| if (Limit < 0) Limit = 0; | |
| if (Limit > 400) Limit = 400; | |
| } | |
| hICC = cmsCreateProfilePlaceholder(ContextID); | |
| if (!hICC) // can't allocate | |
| return NULL; | |
| cmsSetProfileVersion(hICC, 4.3); | |
| cmsSetDeviceClass(hICC, cmsSigLinkClass); | |
| cmsSetColorSpace(hICC, ColorSpace); | |
| cmsSetPCS(hICC, ColorSpace); | |
| cmsSetHeaderRenderingIntent(hICC, INTENT_PERCEPTUAL); | |
| // Creates a Pipeline with 3D grid only | |
| LUT = cmsPipelineAlloc(ContextID, 4, 4); | |
| if (LUT == NULL) goto Error; | |
| nChannels = cmsChannelsOf(ColorSpace); | |
| CLUT = cmsStageAllocCLut16bit(ContextID, 17, nChannels, nChannels, NULL); | |
| if (CLUT == NULL) goto Error; | |
| if (!cmsStageSampleCLut16bit(CLUT, InkLimitingSampler, (void*) &Limit, 0)) goto Error; | |
| if (!cmsPipelineInsertStage(LUT, cmsAT_BEGIN, _cmsStageAllocIdentityCurves(ContextID, nChannels)) || | |
| !cmsPipelineInsertStage(LUT, cmsAT_END, CLUT) || | |
| !cmsPipelineInsertStage(LUT, cmsAT_END, _cmsStageAllocIdentityCurves(ContextID, nChannels))) | |
| goto Error; | |
| // Create tags | |
| if (!SetTextTags(hICC, L"ink-limiting built-in")) goto Error; | |
| if (!cmsWriteTag(hICC, cmsSigAToB0Tag, (void*) LUT)) goto Error; | |
| if (!SetSeqDescTag(hICC, "ink-limiting built-in")) goto Error; | |
| // cmsPipeline is already on virtual profile | |
| cmsPipelineFree(LUT); | |
| // Ok, done | |
| return hICC; | |
| Error: | |
| if (LUT != NULL) | |
| cmsPipelineFree(LUT); | |
| if (hICC != NULL) | |
| cmsCloseProfile(hICC); | |
| return NULL; | |
| } | |
| cmsHPROFILE CMSEXPORT cmsCreateInkLimitingDeviceLink(cmsColorSpaceSignature ColorSpace, cmsFloat64Number Limit) | |
| { | |
| return cmsCreateInkLimitingDeviceLinkTHR(NULL, ColorSpace, Limit); | |
| } | |
| // Creates a fake Lab identity. | |
| cmsHPROFILE CMSEXPORT cmsCreateLab2ProfileTHR(cmsContext ContextID, const cmsCIExyY* WhitePoint) | |
| { | |
| cmsHPROFILE hProfile; | |
| cmsPipeline* LUT = NULL; | |
| hProfile = cmsCreateRGBProfileTHR(ContextID, WhitePoint == NULL ? cmsD50_xyY() : WhitePoint, NULL, NULL); | |
| if (hProfile == NULL) return NULL; | |
| cmsSetProfileVersion(hProfile, 2.1); | |
| cmsSetDeviceClass(hProfile, cmsSigAbstractClass); | |
| cmsSetColorSpace(hProfile, cmsSigLabData); | |
| cmsSetPCS(hProfile, cmsSigLabData); | |
| if (!SetTextTags(hProfile, L"Lab identity built-in")) return NULL; | |
| // An identity LUT is all we need | |
| LUT = cmsPipelineAlloc(ContextID, 3, 3); | |
| if (LUT == NULL) goto Error; | |
| if (!cmsPipelineInsertStage(LUT, cmsAT_BEGIN, _cmsStageAllocIdentityCLut(ContextID, 3))) | |
| goto Error; | |
| if (!cmsWriteTag(hProfile, cmsSigAToB0Tag, LUT)) goto Error; | |
| cmsPipelineFree(LUT); | |
| return hProfile; | |
| Error: | |
| if (LUT != NULL) | |
| cmsPipelineFree(LUT); | |
| if (hProfile != NULL) | |
| cmsCloseProfile(hProfile); | |
| return NULL; | |
| } | |
| cmsHPROFILE CMSEXPORT cmsCreateLab2Profile(const cmsCIExyY* WhitePoint) | |
| { | |
| return cmsCreateLab2ProfileTHR(NULL, WhitePoint); | |
| } | |
| // Creates a fake Lab V4 identity. | |
| cmsHPROFILE CMSEXPORT cmsCreateLab4ProfileTHR(cmsContext ContextID, const cmsCIExyY* WhitePoint) | |
| { | |
| cmsHPROFILE hProfile; | |
| cmsPipeline* LUT = NULL; | |
| hProfile = cmsCreateRGBProfileTHR(ContextID, WhitePoint == NULL ? cmsD50_xyY() : WhitePoint, NULL, NULL); | |
| if (hProfile == NULL) return NULL; | |
| cmsSetProfileVersion(hProfile, 4.3); | |
| cmsSetDeviceClass(hProfile, cmsSigAbstractClass); | |
| cmsSetColorSpace(hProfile, cmsSigLabData); | |
| cmsSetPCS(hProfile, cmsSigLabData); | |
| if (!SetTextTags(hProfile, L"Lab identity built-in")) goto Error; | |
| // An empty LUTs is all we need | |
| LUT = cmsPipelineAlloc(ContextID, 3, 3); | |
| if (LUT == NULL) goto Error; | |
| if (!cmsPipelineInsertStage(LUT, cmsAT_BEGIN, _cmsStageAllocIdentityCurves(ContextID, 3))) | |
| goto Error; | |
| if (!cmsWriteTag(hProfile, cmsSigAToB0Tag, LUT)) goto Error; | |
| cmsPipelineFree(LUT); | |
| return hProfile; | |
| Error: | |
| if (LUT != NULL) | |
| cmsPipelineFree(LUT); | |
| if (hProfile != NULL) | |
| cmsCloseProfile(hProfile); | |
| return NULL; | |
| } | |
| cmsHPROFILE CMSEXPORT cmsCreateLab4Profile(const cmsCIExyY* WhitePoint) | |
| { | |
| return cmsCreateLab4ProfileTHR(NULL, WhitePoint); | |
| } | |
| // Creates a fake XYZ identity | |
| cmsHPROFILE CMSEXPORT cmsCreateXYZProfileTHR(cmsContext ContextID) | |
| { | |
| cmsHPROFILE hProfile; | |
| cmsPipeline* LUT = NULL; | |
| hProfile = cmsCreateRGBProfileTHR(ContextID, cmsD50_xyY(), NULL, NULL); | |
| if (hProfile == NULL) return NULL; | |
| cmsSetProfileVersion(hProfile, 4.3); | |
| cmsSetDeviceClass(hProfile, cmsSigAbstractClass); | |
| cmsSetColorSpace(hProfile, cmsSigXYZData); | |
| cmsSetPCS(hProfile, cmsSigXYZData); | |
| if (!SetTextTags(hProfile, L"XYZ identity built-in")) goto Error; | |
| // An identity LUT is all we need | |
| LUT = cmsPipelineAlloc(ContextID, 3, 3); | |
| if (LUT == NULL) goto Error; | |
| if (!cmsPipelineInsertStage(LUT, cmsAT_BEGIN, _cmsStageAllocIdentityCurves(ContextID, 3))) | |
| goto Error; | |
| if (!cmsWriteTag(hProfile, cmsSigAToB0Tag, LUT)) goto Error; | |
| cmsPipelineFree(LUT); | |
| return hProfile; | |
| Error: | |
| if (LUT != NULL) | |
| cmsPipelineFree(LUT); | |
| if (hProfile != NULL) | |
| cmsCloseProfile(hProfile); | |
| return NULL; | |
| } | |
| cmsHPROFILE CMSEXPORT cmsCreateXYZProfile(void) | |
| { | |
| return cmsCreateXYZProfileTHR(NULL); | |
| } | |
| //sRGB Curves are defined by: | |
| // | |
| //If R'sRGB,G'sRGB, B'sRGB < 0.04045 | |
| // | |
| // R = R'sRGB / 12.92 | |
| // G = G'sRGB / 12.92 | |
| // B = B'sRGB / 12.92 | |
| // | |
| // | |
| //else if R'sRGB,G'sRGB, B'sRGB >= 0.04045 | |
| // | |
| // R = ((R'sRGB + 0.055) / 1.055)^2.4 | |
| // G = ((G'sRGB + 0.055) / 1.055)^2.4 | |
| // B = ((B'sRGB + 0.055) / 1.055)^2.4 | |
| static | |
| cmsToneCurve* Build_sRGBGamma(cmsContext ContextID) | |
| { | |
| cmsFloat64Number Parameters[5]; | |
| Parameters[0] = 2.4; | |
| Parameters[1] = 1. / 1.055; | |
| Parameters[2] = 0.055 / 1.055; | |
| Parameters[3] = 1. / 12.92; | |
| Parameters[4] = 0.04045; | |
| return cmsBuildParametricToneCurve(ContextID, 4, Parameters); | |
| } | |
| // Create the ICC virtual profile for sRGB space | |
| cmsHPROFILE CMSEXPORT cmsCreate_sRGBProfileTHR(cmsContext ContextID) | |
| { | |
| cmsCIExyY D65 = { 0.3127, 0.3290, 1.0 }; | |
| cmsCIExyYTRIPLE Rec709Primaries = { | |
| {0.6400, 0.3300, 1.0}, | |
| {0.3000, 0.6000, 1.0}, | |
| {0.1500, 0.0600, 1.0} | |
| }; | |
| cmsToneCurve* Gamma22[3]; | |
| cmsHPROFILE hsRGB; | |
| // cmsWhitePointFromTemp(&D65, 6504); | |
| Gamma22[0] = Gamma22[1] = Gamma22[2] = Build_sRGBGamma(ContextID); | |
| if (Gamma22[0] == NULL) return NULL; | |
| hsRGB = cmsCreateRGBProfileTHR(ContextID, &D65, &Rec709Primaries, Gamma22); | |
| cmsFreeToneCurve(Gamma22[0]); | |
| if (hsRGB == NULL) return NULL; | |
| if (!SetTextTags(hsRGB, L"sRGB built-in")) { | |
| cmsCloseProfile(hsRGB); | |
| return NULL; | |
| } | |
| return hsRGB; | |
| } | |
| cmsHPROFILE CMSEXPORT cmsCreate_sRGBProfile(void) | |
| { | |
| return cmsCreate_sRGBProfileTHR(NULL); | |
| } | |
| typedef struct { | |
| cmsFloat64Number Brightness; | |
| cmsFloat64Number Contrast; | |
| cmsFloat64Number Hue; | |
| cmsFloat64Number Saturation; | |
| cmsBool lAdjustWP; | |
| cmsCIEXYZ WPsrc, WPdest; | |
| } BCHSWADJUSTS, *LPBCHSWADJUSTS; | |
| static | |
| int bchswSampler(CMSREGISTER const cmsUInt16Number In[], CMSREGISTER cmsUInt16Number Out[], CMSREGISTER void* Cargo) | |
| { | |
| cmsCIELab LabIn, LabOut; | |
| cmsCIELCh LChIn, LChOut; | |
| cmsCIEXYZ XYZ; | |
| LPBCHSWADJUSTS bchsw = (LPBCHSWADJUSTS) Cargo; | |
| cmsLabEncoded2Float(&LabIn, In); | |
| cmsLab2LCh(&LChIn, &LabIn); | |
| // Do some adjusts on LCh | |
| LChOut.L = LChIn.L * bchsw ->Contrast + bchsw ->Brightness; | |
| LChOut.C = LChIn.C + bchsw -> Saturation; | |
| LChOut.h = LChIn.h + bchsw -> Hue; | |
| cmsLCh2Lab(&LabOut, &LChOut); | |
| // Move white point in Lab | |
| if (bchsw->lAdjustWP) { | |
| cmsLab2XYZ(&bchsw->WPsrc, &XYZ, &LabOut); | |
| cmsXYZ2Lab(&bchsw->WPdest, &LabOut, &XYZ); | |
| } | |
| // Back to encoded | |
| cmsFloat2LabEncoded(Out, &LabOut); | |
| return TRUE; | |
| } | |
| // Creates an abstract profile operating in Lab space for Brightness, | |
| // contrast, Saturation and white point displacement | |
| cmsHPROFILE CMSEXPORT cmsCreateBCHSWabstractProfileTHR(cmsContext ContextID, | |
| cmsUInt32Number nLUTPoints, | |
| cmsFloat64Number Bright, | |
| cmsFloat64Number Contrast, | |
| cmsFloat64Number Hue, | |
| cmsFloat64Number Saturation, | |
| cmsUInt32Number TempSrc, | |
| cmsUInt32Number TempDest) | |
| { | |
| cmsHPROFILE hICC; | |
| cmsPipeline* Pipeline; | |
| BCHSWADJUSTS bchsw; | |
| cmsCIExyY WhitePnt; | |
| cmsStage* CLUT; | |
| cmsUInt32Number Dimensions[MAX_INPUT_DIMENSIONS]; | |
| cmsUInt32Number i; | |
| bchsw.Brightness = Bright; | |
| bchsw.Contrast = Contrast; | |
| bchsw.Hue = Hue; | |
| bchsw.Saturation = Saturation; | |
| if (TempSrc == TempDest) { | |
| bchsw.lAdjustWP = FALSE; | |
| } | |
| else { | |
| bchsw.lAdjustWP = TRUE; | |
| cmsWhitePointFromTemp(&WhitePnt, TempSrc); | |
| cmsxyY2XYZ(&bchsw.WPsrc, &WhitePnt); | |
| cmsWhitePointFromTemp(&WhitePnt, TempDest); | |
| cmsxyY2XYZ(&bchsw.WPdest, &WhitePnt); | |
| } | |
| hICC = cmsCreateProfilePlaceholder(ContextID); | |
| if (!hICC) // can't allocate | |
| return NULL; | |
| cmsSetDeviceClass(hICC, cmsSigAbstractClass); | |
| cmsSetColorSpace(hICC, cmsSigLabData); | |
| cmsSetPCS(hICC, cmsSigLabData); | |
| cmsSetHeaderRenderingIntent(hICC, INTENT_PERCEPTUAL); | |
| // Creates a Pipeline with 3D grid only | |
| Pipeline = cmsPipelineAlloc(ContextID, 3, 3); | |
| if (Pipeline == NULL) { | |
| cmsCloseProfile(hICC); | |
| return NULL; | |
| } | |
| for (i=0; i < MAX_INPUT_DIMENSIONS; i++) Dimensions[i] = nLUTPoints; | |
| CLUT = cmsStageAllocCLut16bitGranular(ContextID, Dimensions, 3, 3, NULL); | |
| if (CLUT == NULL) goto Error; | |
| if (!cmsStageSampleCLut16bit(CLUT, bchswSampler, (void*) &bchsw, 0)) { | |
| // Shouldn't reach here | |
| goto Error; | |
| } | |
| if (!cmsPipelineInsertStage(Pipeline, cmsAT_END, CLUT)) { | |
| goto Error; | |
| } | |
| // Create tags | |
| if (!SetTextTags(hICC, L"BCHS built-in")) return NULL; | |
| cmsWriteTag(hICC, cmsSigMediaWhitePointTag, (void*) cmsD50_XYZ()); | |
| cmsWriteTag(hICC, cmsSigAToB0Tag, (void*) Pipeline); | |
| // Pipeline is already on virtual profile | |
| cmsPipelineFree(Pipeline); | |
| // Ok, done | |
| return hICC; | |
| Error: | |
| cmsPipelineFree(Pipeline); | |
| cmsCloseProfile(hICC); | |
| return NULL; | |
| } | |
| CMSAPI cmsHPROFILE CMSEXPORT cmsCreateBCHSWabstractProfile(cmsUInt32Number nLUTPoints, | |
| cmsFloat64Number Bright, | |
| cmsFloat64Number Contrast, | |
| cmsFloat64Number Hue, | |
| cmsFloat64Number Saturation, | |
| cmsUInt32Number TempSrc, | |
| cmsUInt32Number TempDest) | |
| { | |
| return cmsCreateBCHSWabstractProfileTHR(NULL, nLUTPoints, Bright, Contrast, Hue, Saturation, TempSrc, TempDest); | |
| } | |
| // Creates a fake NULL profile. This profile return 1 channel as always 0. | |
| // Is useful only for gamut checking tricks | |
| cmsHPROFILE CMSEXPORT cmsCreateNULLProfileTHR(cmsContext ContextID) | |
| { | |
| cmsHPROFILE hProfile; | |
| cmsPipeline* LUT = NULL; | |
| cmsStage* PostLin; | |
| cmsStage* OutLin; | |
| cmsToneCurve* EmptyTab[3]; | |
| cmsUInt16Number Zero[2] = { 0, 0 }; | |
| const cmsFloat64Number PickLstarMatrix[] = { 1, 0, 0 }; | |
| hProfile = cmsCreateProfilePlaceholder(ContextID); | |
| if (!hProfile) // can't allocate | |
| return NULL; | |
| cmsSetProfileVersion(hProfile, 4.3); | |
| if (!SetTextTags(hProfile, L"NULL profile built-in")) goto Error; | |
| cmsSetDeviceClass(hProfile, cmsSigOutputClass); | |
| cmsSetColorSpace(hProfile, cmsSigGrayData); | |
| cmsSetPCS(hProfile, cmsSigLabData); | |
| // Create a valid ICC 4 structure | |
| LUT = cmsPipelineAlloc(ContextID, 3, 1); | |
| if (LUT == NULL) goto Error; | |
| EmptyTab[0] = EmptyTab[1] = EmptyTab[2] = cmsBuildTabulatedToneCurve16(ContextID, 2, Zero); | |
| PostLin = cmsStageAllocToneCurves(ContextID, 3, EmptyTab); | |
| OutLin = cmsStageAllocToneCurves(ContextID, 1, EmptyTab); | |
| cmsFreeToneCurve(EmptyTab[0]); | |
| if (!cmsPipelineInsertStage(LUT, cmsAT_END, PostLin)) | |
| goto Error; | |
| if (!cmsPipelineInsertStage(LUT, cmsAT_END, cmsStageAllocMatrix(ContextID, 1, 3, PickLstarMatrix, NULL))) | |
| goto Error; | |
| if (!cmsPipelineInsertStage(LUT, cmsAT_END, OutLin)) | |
| goto Error; | |
| if (!cmsWriteTag(hProfile, cmsSigBToA0Tag, (void*) LUT)) goto Error; | |
| if (!cmsWriteTag(hProfile, cmsSigMediaWhitePointTag, cmsD50_XYZ())) goto Error; | |
| cmsPipelineFree(LUT); | |
| return hProfile; | |
| Error: | |
| if (LUT != NULL) | |
| cmsPipelineFree(LUT); | |
| if (hProfile != NULL) | |
| cmsCloseProfile(hProfile); | |
| return NULL; | |
| } | |
| cmsHPROFILE CMSEXPORT cmsCreateNULLProfile(void) | |
| { | |
| return cmsCreateNULLProfileTHR(NULL); | |
| } | |
| static | |
| int IsPCS(cmsColorSpaceSignature ColorSpace) | |
| { | |
| return (ColorSpace == cmsSigXYZData || | |
| ColorSpace == cmsSigLabData); | |
| } | |
| static | |
| void FixColorSpaces(cmsHPROFILE hProfile, | |
| cmsColorSpaceSignature ColorSpace, | |
| cmsColorSpaceSignature PCS, | |
| cmsUInt32Number dwFlags) | |
| { | |
| if (dwFlags & cmsFLAGS_GUESSDEVICECLASS) { | |
| if (IsPCS(ColorSpace) && IsPCS(PCS)) { | |
| cmsSetDeviceClass(hProfile, cmsSigAbstractClass); | |
| cmsSetColorSpace(hProfile, ColorSpace); | |
| cmsSetPCS(hProfile, PCS); | |
| return; | |
| } | |
| if (IsPCS(ColorSpace) && !IsPCS(PCS)) { | |
| cmsSetDeviceClass(hProfile, cmsSigOutputClass); | |
| cmsSetPCS(hProfile, ColorSpace); | |
| cmsSetColorSpace(hProfile, PCS); | |
| return; | |
| } | |
| if (IsPCS(PCS) && !IsPCS(ColorSpace)) { | |
| cmsSetDeviceClass(hProfile, cmsSigInputClass); | |
| cmsSetColorSpace(hProfile, ColorSpace); | |
| cmsSetPCS(hProfile, PCS); | |
| return; | |
| } | |
| } | |
| cmsSetDeviceClass(hProfile, cmsSigLinkClass); | |
| cmsSetColorSpace(hProfile, ColorSpace); | |
| cmsSetPCS(hProfile, PCS); | |
| } | |
| // This function creates a named color profile dumping all the contents of transform to a single profile | |
| // In this way, LittleCMS may be used to "group" several named color databases into a single profile. | |
| // It has, however, several minor limitations. PCS is always Lab, which is not very critic since this | |
| // is the normal PCS for named color profiles. | |
| static | |
| cmsHPROFILE CreateNamedColorDevicelink(cmsHTRANSFORM xform) | |
| { | |
| _cmsTRANSFORM* v = (_cmsTRANSFORM*) xform; | |
| cmsHPROFILE hICC = NULL; | |
| cmsUInt32Number i, nColors; | |
| cmsNAMEDCOLORLIST *nc2 = NULL, *Original = NULL; | |
| // Create an empty placeholder | |
| hICC = cmsCreateProfilePlaceholder(v->ContextID); | |
| if (hICC == NULL) return NULL; | |
| // Critical information | |
| cmsSetDeviceClass(hICC, cmsSigNamedColorClass); | |
| cmsSetColorSpace(hICC, v ->ExitColorSpace); | |
| cmsSetPCS(hICC, cmsSigLabData); | |
| // Tag profile with information | |
| if (!SetTextTags(hICC, L"Named color devicelink")) goto Error; | |
| Original = cmsGetNamedColorList(xform); | |
| if (Original == NULL) goto Error; | |
| nColors = cmsNamedColorCount(Original); | |
| nc2 = cmsDupNamedColorList(Original); | |
| if (nc2 == NULL) goto Error; | |
| // Colorant count now depends on the output space | |
| nc2 ->ColorantCount = cmsPipelineOutputChannels(v ->Lut); | |
| // Make sure we have proper formatters | |
| cmsChangeBuffersFormat(xform, TYPE_NAMED_COLOR_INDEX, | |
| FLOAT_SH(0) | COLORSPACE_SH(_cmsLCMScolorSpace(v ->ExitColorSpace)) | |
| | BYTES_SH(2) | CHANNELS_SH(cmsChannelsOf(v ->ExitColorSpace))); | |
| // Apply the transfor to colorants. | |
| for (i=0; i < nColors; i++) { | |
| cmsDoTransform(xform, &i, nc2 ->List[i].DeviceColorant, 1); | |
| } | |
| if (!cmsWriteTag(hICC, cmsSigNamedColor2Tag, (void*) nc2)) goto Error; | |
| cmsFreeNamedColorList(nc2); | |
| return hICC; | |
| Error: | |
| if (hICC != NULL) cmsCloseProfile(hICC); | |
| return NULL; | |
| } | |
| // This structure holds information about which MPU can be stored on a profile based on the version | |
| typedef struct { | |
| cmsBool IsV4; // Is a V4 tag? | |
| cmsTagSignature RequiredTag; // Set to 0 for both types | |
| cmsTagTypeSignature LutType; // The LUT type | |
| int nTypes; // Number of types (up to 5) | |
| cmsStageSignature MpeTypes[5]; // 5 is the maximum number | |
| } cmsAllowedLUT; | |
| #define cmsSig0 ((cmsTagSignature) 0) | |
| static const cmsAllowedLUT AllowedLUTTypes[] = { | |
| { FALSE, cmsSig0, cmsSigLut16Type, 4, { cmsSigMatrixElemType, cmsSigCurveSetElemType, cmsSigCLutElemType, cmsSigCurveSetElemType } }, | |
| { FALSE, cmsSig0, cmsSigLut16Type, 3, { cmsSigCurveSetElemType, cmsSigCLutElemType, cmsSigCurveSetElemType } }, | |
| { FALSE, cmsSig0, cmsSigLut16Type, 2, { cmsSigCurveSetElemType, cmsSigCLutElemType } }, | |
| { TRUE, cmsSig0, cmsSigLutAtoBType, 1, { cmsSigCurveSetElemType } }, | |
| { TRUE , cmsSigAToB0Tag, cmsSigLutAtoBType, 3, { cmsSigCurveSetElemType, cmsSigMatrixElemType, cmsSigCurveSetElemType } }, | |
| { TRUE , cmsSigAToB0Tag, cmsSigLutAtoBType, 3, { cmsSigCurveSetElemType, cmsSigCLutElemType, cmsSigCurveSetElemType } }, | |
| { TRUE , cmsSigAToB0Tag, cmsSigLutAtoBType, 5, { cmsSigCurveSetElemType, cmsSigCLutElemType, cmsSigCurveSetElemType, cmsSigMatrixElemType, cmsSigCurveSetElemType }}, | |
| { TRUE , cmsSigBToA0Tag, cmsSigLutBtoAType, 1, { cmsSigCurveSetElemType }}, | |
| { TRUE , cmsSigBToA0Tag, cmsSigLutBtoAType, 3, { cmsSigCurveSetElemType, cmsSigMatrixElemType, cmsSigCurveSetElemType }}, | |
| { TRUE , cmsSigBToA0Tag, cmsSigLutBtoAType, 3, { cmsSigCurveSetElemType, cmsSigCLutElemType, cmsSigCurveSetElemType }}, | |
| { TRUE , cmsSigBToA0Tag, cmsSigLutBtoAType, 5, { cmsSigCurveSetElemType, cmsSigMatrixElemType, cmsSigCurveSetElemType, cmsSigCLutElemType, cmsSigCurveSetElemType }} | |
| }; | |
| #define SIZE_OF_ALLOWED_LUT (sizeof(AllowedLUTTypes)/sizeof(cmsAllowedLUT)) | |
| // Check a single entry | |
| static | |
| cmsBool CheckOne(const cmsAllowedLUT* Tab, const cmsPipeline* Lut) | |
| { | |
| cmsStage* mpe; | |
| int n; | |
| for (n=0, mpe = Lut ->Elements; mpe != NULL; mpe = mpe ->Next, n++) { | |
| if (n > Tab ->nTypes) return FALSE; | |
| if (cmsStageType(mpe) != Tab ->MpeTypes[n]) return FALSE; | |
| } | |
| return (n == Tab ->nTypes); | |
| } | |
| static | |
| const cmsAllowedLUT* FindCombination(const cmsPipeline* Lut, cmsBool IsV4, cmsTagSignature DestinationTag) | |
| { | |
| cmsUInt32Number n; | |
| for (n=0; n < SIZE_OF_ALLOWED_LUT; n++) { | |
| const cmsAllowedLUT* Tab = AllowedLUTTypes + n; | |
| if (IsV4 ^ Tab -> IsV4) continue; | |
| if ((Tab ->RequiredTag != 0) && (Tab ->RequiredTag != DestinationTag)) continue; | |
| if (CheckOne(Tab, Lut)) return Tab; | |
| } | |
| return NULL; | |
| } | |
| // Does convert a transform into a device link profile | |
| cmsHPROFILE CMSEXPORT cmsTransform2DeviceLink(cmsHTRANSFORM hTransform, cmsFloat64Number Version, cmsUInt32Number dwFlags) | |
| { | |
| cmsHPROFILE hProfile = NULL; | |
| cmsUInt32Number FrmIn, FrmOut, ChansIn, ChansOut; | |
| int ColorSpaceBitsIn, ColorSpaceBitsOut; | |
| _cmsTRANSFORM* xform = (_cmsTRANSFORM*) hTransform; | |
| cmsPipeline* LUT = NULL; | |
| cmsStage* mpe; | |
| cmsContext ContextID = cmsGetTransformContextID(hTransform); | |
| const cmsAllowedLUT* AllowedLUT; | |
| cmsTagSignature DestinationTag; | |
| cmsProfileClassSignature deviceClass; | |
| _cmsAssert(hTransform != NULL); | |
| // Get the first mpe to check for named color | |
| mpe = cmsPipelineGetPtrToFirstStage(xform ->Lut); | |
| // Check if is a named color transform | |
| if (mpe != NULL) { | |
| if (cmsStageType(mpe) == cmsSigNamedColorElemType) { | |
| return CreateNamedColorDevicelink(hTransform); | |
| } | |
| } | |
| // First thing to do is to get a copy of the transformation | |
| LUT = cmsPipelineDup(xform ->Lut); | |
| if (LUT == NULL) return NULL; | |
| // Time to fix the Lab2/Lab4 issue. | |
| if ((xform ->EntryColorSpace == cmsSigLabData) && (Version < 4.0)) { | |
| if (!cmsPipelineInsertStage(LUT, cmsAT_BEGIN, _cmsStageAllocLabV2ToV4curves(ContextID))) | |
| goto Error; | |
| } | |
| // On the output side too. Note that due to V2/V4 PCS encoding on lab we cannot fix white misalignments | |
| if ((xform ->ExitColorSpace) == cmsSigLabData && (Version < 4.0)) { | |
| dwFlags |= cmsFLAGS_NOWHITEONWHITEFIXUP; | |
| if (!cmsPipelineInsertStage(LUT, cmsAT_END, _cmsStageAllocLabV4ToV2(ContextID))) | |
| goto Error; | |
| } | |
| hProfile = cmsCreateProfilePlaceholder(ContextID); | |
| if (!hProfile) goto Error; // can't allocate | |
| cmsSetProfileVersion(hProfile, Version); | |
| FixColorSpaces(hProfile, xform -> EntryColorSpace, xform -> ExitColorSpace, dwFlags); | |
| // Optimize the LUT and precalculate a devicelink | |
| ChansIn = cmsChannelsOf(xform -> EntryColorSpace); | |
| ChansOut = cmsChannelsOf(xform -> ExitColorSpace); | |
| ColorSpaceBitsIn = _cmsLCMScolorSpace(xform -> EntryColorSpace); | |
| ColorSpaceBitsOut = _cmsLCMScolorSpace(xform -> ExitColorSpace); | |
| FrmIn = COLORSPACE_SH(ColorSpaceBitsIn) | CHANNELS_SH(ChansIn)|BYTES_SH(2); | |
| FrmOut = COLORSPACE_SH(ColorSpaceBitsOut) | CHANNELS_SH(ChansOut)|BYTES_SH(2); | |
| deviceClass = cmsGetDeviceClass(hProfile); | |
| if (deviceClass == cmsSigOutputClass) | |
| DestinationTag = cmsSigBToA0Tag; | |
| else | |
| DestinationTag = cmsSigAToB0Tag; | |
| // Check if the profile/version can store the result | |
| if (dwFlags & cmsFLAGS_FORCE_CLUT) | |
| AllowedLUT = NULL; | |
| else | |
| AllowedLUT = FindCombination(LUT, Version >= 4.0, DestinationTag); | |
| if (AllowedLUT == NULL) { | |
| // Try to optimize | |
| _cmsOptimizePipeline(ContextID, &LUT, xform ->RenderingIntent, &FrmIn, &FrmOut, &dwFlags); | |
| AllowedLUT = FindCombination(LUT, Version >= 4.0, DestinationTag); | |
| } | |
| // If no way, then force CLUT that for sure can be written | |
| if (AllowedLUT == NULL) { | |
| cmsStage* FirstStage; | |
| cmsStage* LastStage; | |
| dwFlags |= cmsFLAGS_FORCE_CLUT; | |
| _cmsOptimizePipeline(ContextID, &LUT, xform ->RenderingIntent, &FrmIn, &FrmOut, &dwFlags); | |
| // Put identity curves if needed | |
| FirstStage = cmsPipelineGetPtrToFirstStage(LUT); | |
| if (FirstStage != NULL && FirstStage ->Type != cmsSigCurveSetElemType) | |
| if (!cmsPipelineInsertStage(LUT, cmsAT_BEGIN, _cmsStageAllocIdentityCurves(ContextID, ChansIn))) | |
| goto Error; | |
| LastStage = cmsPipelineGetPtrToLastStage(LUT); | |
| if (LastStage != NULL && LastStage ->Type != cmsSigCurveSetElemType) | |
| if (!cmsPipelineInsertStage(LUT, cmsAT_END, _cmsStageAllocIdentityCurves(ContextID, ChansOut))) | |
| goto Error; | |
| AllowedLUT = FindCombination(LUT, Version >= 4.0, DestinationTag); | |
| } | |
| // Somethings is wrong... | |
| if (AllowedLUT == NULL) { | |
| goto Error; | |
| } | |
| if (dwFlags & cmsFLAGS_8BITS_DEVICELINK) | |
| cmsPipelineSetSaveAs8bitsFlag(LUT, TRUE); | |
| // Tag profile with information | |
| if (!SetTextTags(hProfile, L"devicelink")) goto Error; | |
| // Store result | |
| if (!cmsWriteTag(hProfile, DestinationTag, LUT)) goto Error; | |
| if (xform -> InputColorant != NULL) { | |
| if (!cmsWriteTag(hProfile, cmsSigColorantTableTag, xform->InputColorant)) goto Error; | |
| } | |
| if (xform -> OutputColorant != NULL) { | |
| if (!cmsWriteTag(hProfile, cmsSigColorantTableOutTag, xform->OutputColorant)) goto Error; | |
| } | |
| if ((deviceClass == cmsSigLinkClass) && (xform ->Sequence != NULL)) { | |
| if (!_cmsWriteProfileSequence(hProfile, xform ->Sequence)) goto Error; | |
| } | |
| // Set the white point | |
| if (deviceClass == cmsSigInputClass) { | |
| if (!cmsWriteTag(hProfile, cmsSigMediaWhitePointTag, &xform ->EntryWhitePoint)) goto Error; | |
| } | |
| else { | |
| if (!cmsWriteTag(hProfile, cmsSigMediaWhitePointTag, &xform ->ExitWhitePoint)) goto Error; | |
| } | |
| // Per 7.2.15 in spec 4.3 | |
| cmsSetHeaderRenderingIntent(hProfile, xform ->RenderingIntent); | |
| cmsPipelineFree(LUT); | |
| return hProfile; | |
| Error: | |
| if (LUT != NULL) cmsPipelineFree(LUT); | |
| cmsCloseProfile(hProfile); | |
| return NULL; | |
| } |