//--------------------------------------------------------------------------------- // // Little Color Management System // Copyright (c) 1998-2023 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" // Transformations stuff // ----------------------------------------------------------------------- #define DEFAULT_OBSERVER_ADAPTATION_STATE … // The Context0 observer adaptation state. _cmsAdaptationStateChunkType _cmsAdaptationStateChunk = …; // Init and duplicate observer adaptation state void _cmsAllocAdaptationStateChunk(struct _cmsContext_struct* ctx, const struct _cmsContext_struct* src) { … } // Sets adaptation state for absolute colorimetric intent in the given context. Adaptation state applies on all // but cmsCreateExtendedTransformTHR(). Little CMS can handle incomplete adaptation states. cmsFloat64Number CMSEXPORT cmsSetAdaptationStateTHR(cmsContext ContextID, cmsFloat64Number d) { … } // The adaptation state may be defaulted by this function. If you don't like it, use the extended transform routine cmsFloat64Number CMSEXPORT cmsSetAdaptationState(cmsFloat64Number d) { … } // ----------------------------------------------------------------------- // Alarm codes for 16-bit transformations, because the fixed range of containers there are // no values left to mark out of gamut. #define DEFAULT_ALARM_CODES_VALUE … _cmsAlarmCodesChunkType _cmsAlarmCodesChunk = …; // Sets the codes used to mark out-out-gamut on Proofing transforms for a given context. Values are meant to be // encoded in 16 bits. void CMSEXPORT cmsSetAlarmCodesTHR(cmsContext ContextID, const cmsUInt16Number AlarmCodesP[cmsMAXCHANNELS]) { … } // Gets the current codes used to mark out-out-gamut on Proofing transforms for the given context. // Values are meant to be encoded in 16 bits. void CMSEXPORT cmsGetAlarmCodesTHR(cmsContext ContextID, cmsUInt16Number AlarmCodesP[cmsMAXCHANNELS]) { … } void CMSEXPORT cmsSetAlarmCodes(const cmsUInt16Number NewAlarm[cmsMAXCHANNELS]) { … } void CMSEXPORT cmsGetAlarmCodes(cmsUInt16Number OldAlarm[cmsMAXCHANNELS]) { … } // Init and duplicate alarm codes void _cmsAllocAlarmCodesChunk(struct _cmsContext_struct* ctx, const struct _cmsContext_struct* src) { … } // ----------------------------------------------------------------------- // Get rid of transform resources void CMSEXPORT cmsDeleteTransform(cmsHTRANSFORM hTransform) { … } static cmsUInt32Number PixelSize(cmsUInt32Number Format) { … } // Apply transform. void CMSEXPORT cmsDoTransform(cmsHTRANSFORM Transform, const void* InputBuffer, void* OutputBuffer, cmsUInt32Number Size) { … } // This is a legacy stride for planar void CMSEXPORT cmsDoTransformStride(cmsHTRANSFORM Transform, const void* InputBuffer, void* OutputBuffer, cmsUInt32Number Size, cmsUInt32Number Stride) { … } // This is the "fast" function for plugins void CMSEXPORT cmsDoTransformLineStride(cmsHTRANSFORM Transform, const void* InputBuffer, void* OutputBuffer, cmsUInt32Number PixelsPerLine, cmsUInt32Number LineCount, cmsUInt32Number BytesPerLineIn, cmsUInt32Number BytesPerLineOut, cmsUInt32Number BytesPerPlaneIn, cmsUInt32Number BytesPerPlaneOut) { … } // Transform routines ---------------------------------------------------------------------------------------------------------- // Float xform converts floats. Since there are no performance issues, one routine does all job, including gamut check. // Note that because extended range, we can use a -1.0 value for out of gamut in this case. static void FloatXFORM(_cmsTRANSFORM* p, const void* in, void* out, cmsUInt32Number PixelsPerLine, cmsUInt32Number LineCount, const cmsStride* Stride) { … } static void NullFloatXFORM(_cmsTRANSFORM* p, const void* in, void* out, cmsUInt32Number PixelsPerLine, cmsUInt32Number LineCount, const cmsStride* Stride) { … } // 16 bit precision ----------------------------------------------------------------------------------------------------------- // Null transformation, only applies formatters. No cache static void NullXFORM(_cmsTRANSFORM* p, const void* in, void* out, cmsUInt32Number PixelsPerLine, cmsUInt32Number LineCount, const cmsStride* Stride) { … } // No gamut check, no cache, 16 bits static void PrecalculatedXFORM(_cmsTRANSFORM* p, const void* in, void* out, cmsUInt32Number PixelsPerLine, cmsUInt32Number LineCount, const cmsStride* Stride) { … } // Auxiliary: Handle precalculated gamut check. The retrieval of context may be alittle bit slow, but this function is not critical. static void TransformOnePixelWithGamutCheck(_cmsTRANSFORM* p, const cmsUInt16Number wIn[], cmsUInt16Number wOut[]) { … } // Gamut check, No cache, 16 bits. static void PrecalculatedXFORMGamutCheck(_cmsTRANSFORM* p, const void* in, void* out, cmsUInt32Number PixelsPerLine, cmsUInt32Number LineCount, const cmsStride* Stride) { … } // No gamut check, Cache, 16 bits, static void CachedXFORM(_cmsTRANSFORM* p, const void* in, void* out, cmsUInt32Number PixelsPerLine, cmsUInt32Number LineCount, const cmsStride* Stride) { … } // All those nice features together static void CachedXFORMGamutCheck(_cmsTRANSFORM* p, const void* in, void* out, cmsUInt32Number PixelsPerLine, cmsUInt32Number LineCount, const cmsStride* Stride) { … } // Transform plug-ins ---------------------------------------------------------------------------------------------------- // List of used-defined transform factories _cmsTransformCollection; // The linked list head _cmsTransformPluginChunkType _cmsTransformPluginChunk = …; // Duplicates the zone of memory used by the plug-in in the new context static void DupPluginTransformList(struct _cmsContext_struct* ctx, const struct _cmsContext_struct* src) { … } // Allocates memory for transform plugin factory void _cmsAllocTransformPluginChunk(struct _cmsContext_struct* ctx, const struct _cmsContext_struct* src) { … } // Adaptor for old versions of plug-in static void _cmsTransform2toTransformAdaptor(struct _cmstransform_struct *CMMcargo, const void* InputBuffer, void* OutputBuffer, cmsUInt32Number PixelsPerLine, cmsUInt32Number LineCount, const cmsStride* Stride) { … } // Register new ways to transform cmsBool _cmsRegisterTransformPlugin(cmsContext ContextID, cmsPluginBase* Data) { … } void CMSEXPORT _cmsSetTransformUserData(struct _cmstransform_struct *CMMcargo, void* ptr, _cmsFreeUserDataFn FreePrivateDataFn) { … } // returns the pointer defined by the plug-in to store private data void * CMSEXPORT _cmsGetTransformUserData(struct _cmstransform_struct *CMMcargo) { … } // returns the current formatters void CMSEXPORT _cmsGetTransformFormatters16(struct _cmstransform_struct *CMMcargo, cmsFormatter16* FromInput, cmsFormatter16* ToOutput) { … } void CMSEXPORT _cmsGetTransformFormattersFloat(struct _cmstransform_struct *CMMcargo, cmsFormatterFloat* FromInput, cmsFormatterFloat* ToOutput) { … } // returns original flags cmsUInt32Number CMSEXPORT _cmsGetTransformFlags(struct _cmstransform_struct* CMMcargo) { … } // Returns the worker callback for parallelization plug-ins _cmsTransform2Fn CMSEXPORT _cmsGetTransformWorker(struct _cmstransform_struct* CMMcargo) { … } // This field holds maximum number of workers or -1 to auto cmsInt32Number CMSEXPORT _cmsGetTransformMaxWorkers(struct _cmstransform_struct* CMMcargo) { … } // This field is actually unused and reserved cmsUInt32Number CMSEXPORT _cmsGetTransformWorkerFlags(struct _cmstransform_struct* CMMcargo) { … } // In the case there is a parallelization plug-in, let it to do its job static void ParalellizeIfSuitable(_cmsTRANSFORM* p) { … } /** * An empty unroll to avoid a check with NULL on cmsDoTransform() */ static cmsUInt8Number* UnrollNothing(CMSREGISTER _cmsTRANSFORM* info, CMSREGISTER cmsUInt16Number wIn[], CMSREGISTER cmsUInt8Number* accum, CMSREGISTER cmsUInt32Number Stride) { … } static cmsUInt8Number* PackNothing(CMSREGISTER _cmsTRANSFORM* info, CMSREGISTER cmsUInt16Number wOut[], CMSREGISTER cmsUInt8Number* output, CMSREGISTER cmsUInt32Number Stride) { … } // Allocate transform struct and set it to defaults. Ask the optimization plug-in about if those formats are proper // for separated transforms. If this is the case, static _cmsTRANSFORM* AllocEmptyTransform(cmsContext ContextID, cmsPipeline* lut, cmsUInt32Number Intent, cmsUInt32Number* InputFormat, cmsUInt32Number* OutputFormat, cmsUInt32Number* dwFlags) { … } static cmsBool GetXFormColorSpaces(cmsUInt32Number nProfiles, cmsHPROFILE hProfiles[], cmsColorSpaceSignature* Input, cmsColorSpaceSignature* Output) { … } // Check colorspace static cmsBool IsProperColorSpace(cmsColorSpaceSignature Check, cmsUInt32Number dwFormat) { … } // ---------------------------------------------------------------------------------------------------------------- // Jun-21-2000: Some profiles (those that comes with W2K) comes // with the media white (media black?) x 100. Add a sanity check static void NormalizeXYZ(cmsCIEXYZ* Dest) { … } static void SetWhitePoint(cmsCIEXYZ* wtPt, const cmsCIEXYZ* src) { … } // New to lcms 2.0 -- have all parameters available. cmsHTRANSFORM CMSEXPORT cmsCreateExtendedTransform(cmsContext ContextID, cmsUInt32Number nProfiles, cmsHPROFILE hProfiles[], cmsBool BPC[], cmsUInt32Number Intents[], cmsFloat64Number AdaptationStates[], cmsHPROFILE hGamutProfile, cmsUInt32Number nGamutPCSposition, cmsUInt32Number InputFormat, cmsUInt32Number OutputFormat, cmsUInt32Number dwFlags) { … } // Multiprofile transforms: Gamut check is not available here, as it is unclear from which profile the gamut comes. cmsHTRANSFORM CMSEXPORT cmsCreateMultiprofileTransformTHR(cmsContext ContextID, cmsHPROFILE hProfiles[], cmsUInt32Number nProfiles, cmsUInt32Number InputFormat, cmsUInt32Number OutputFormat, cmsUInt32Number Intent, cmsUInt32Number dwFlags) { … } cmsHTRANSFORM CMSEXPORT cmsCreateMultiprofileTransform(cmsHPROFILE hProfiles[], cmsUInt32Number nProfiles, cmsUInt32Number InputFormat, cmsUInt32Number OutputFormat, cmsUInt32Number Intent, cmsUInt32Number dwFlags) { … } cmsHTRANSFORM CMSEXPORT cmsCreateTransformTHR(cmsContext ContextID, cmsHPROFILE Input, cmsUInt32Number InputFormat, cmsHPROFILE Output, cmsUInt32Number OutputFormat, cmsUInt32Number Intent, cmsUInt32Number dwFlags) { … } CMSAPI cmsHTRANSFORM CMSEXPORT cmsCreateTransform(cmsHPROFILE Input, cmsUInt32Number InputFormat, cmsHPROFILE Output, cmsUInt32Number OutputFormat, cmsUInt32Number Intent, cmsUInt32Number dwFlags) { … } cmsHTRANSFORM CMSEXPORT cmsCreateProofingTransformTHR(cmsContext ContextID, cmsHPROFILE InputProfile, cmsUInt32Number InputFormat, cmsHPROFILE OutputProfile, cmsUInt32Number OutputFormat, cmsHPROFILE ProofingProfile, cmsUInt32Number nIntent, cmsUInt32Number ProofingIntent, cmsUInt32Number dwFlags) { … } cmsHTRANSFORM CMSEXPORT cmsCreateProofingTransform(cmsHPROFILE InputProfile, cmsUInt32Number InputFormat, cmsHPROFILE OutputProfile, cmsUInt32Number OutputFormat, cmsHPROFILE ProofingProfile, cmsUInt32Number nIntent, cmsUInt32Number ProofingIntent, cmsUInt32Number dwFlags) { … } // Grab the ContextID from an open transform. Returns NULL if a NULL transform is passed cmsContext CMSEXPORT cmsGetTransformContextID(cmsHTRANSFORM hTransform) { … } // Grab the input/output formats cmsUInt32Number CMSEXPORT cmsGetTransformInputFormat(cmsHTRANSFORM hTransform) { … } cmsUInt32Number CMSEXPORT cmsGetTransformOutputFormat(cmsHTRANSFORM hTransform) { … } // For backwards compatibility cmsBool CMSEXPORT cmsChangeBuffersFormat(cmsHTRANSFORM hTransform, cmsUInt32Number InputFormat, cmsUInt32Number OutputFormat) { … }
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