| //--------------------------------------------------------------------------------- |
| // |
| // Little Color Management System |
| // Copyright (c) 1998-2017 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(register const cmsUInt16Number In[], register cmsUInt16Number Out[], register 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(register const cmsUInt16Number In[], register cmsUInt16Number Out[], register 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 |
| if ((xform ->ExitColorSpace) == cmsSigLabData && (Version < 4.0)) { |
| |
| 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; |
| } |
