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authorNicolas Pena <npm@chromium.org>2017-08-10 16:36:56 -0400
committerChromium commit bot <commit-bot@chromium.org>2017-08-10 20:54:00 +0000
commitf7520395821090b36a5ad8c658a844c3342dbf66 (patch)
treeabe5505e60a57479593d6c39790fe214c23f9fef /third_party/lcms/include/lcms2_plugin.h
parenta12812924fc844823025fa383cc3ec8c1d1e2d4f (diff)
downloadpdfium-f7520395821090b36a5ad8c658a844c3342dbf66.tar.xz
LCMS: rename folder
Change-Id: I5f240cb0779648dc5427fecb5561086e7c0fb16a Reviewed-on: https://pdfium-review.googlesource.com/10650 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
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+//---------------------------------------------------------------------------------
+//
+// Little Color Management System
+// Copyright (c) 1998-2011 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.
+//
+//---------------------------------------------------------------------------------
+//
+// This is the plug-in header file. Normal LittleCMS clients should not use it.
+// It is provided for plug-in writters that may want to access the support
+// functions to do low level operations. All plug-in related structures
+// are defined here. Including this file forces to include the standard API too.
+
+#ifndef _lcms_plugin_H
+
+// Deal with Microsoft's attempt at deprecating C standard runtime functions
+#ifdef _MSC_VER
+# if (_MSC_VER >= 1400)
+# ifndef _CRT_SECURE_NO_DEPRECATE
+# define _CRT_SECURE_NO_DEPRECATE
+# endif
+# ifndef _CRT_SECURE_NO_WARNINGS
+# define _CRT_SECURE_NO_WARNINGS
+# endif
+# endif
+#endif
+
+#ifndef _lcms2_H
+#include "lcms2.h"
+#endif
+
+// We need some standard C functions.
+#include <stdlib.h>
+#include <math.h>
+#include <stdarg.h>
+#include <memory.h>
+#include <string.h>
+
+
+#ifndef CMS_USE_CPP_API
+# ifdef __cplusplus
+extern "C" {
+# endif
+#endif
+
+// Vector & Matrix operations -----------------------------------------------------------------------
+
+// Axis of the matrix/array. No specific meaning at all.
+#define VX 0
+#define VY 1
+#define VZ 2
+
+// Vectors
+typedef struct {
+ cmsFloat64Number n[3];
+
+ } cmsVEC3;
+
+// 3x3 Matrix
+typedef struct {
+ cmsVEC3 v[3];
+
+ } cmsMAT3;
+
+CMSAPI void CMSEXPORT _cmsVEC3init(cmsVEC3* r, cmsFloat64Number x, cmsFloat64Number y, cmsFloat64Number z);
+CMSAPI void CMSEXPORT _cmsVEC3minus(cmsVEC3* r, const cmsVEC3* a, const cmsVEC3* b);
+CMSAPI void CMSEXPORT _cmsVEC3cross(cmsVEC3* r, const cmsVEC3* u, const cmsVEC3* v);
+CMSAPI cmsFloat64Number CMSEXPORT _cmsVEC3dot(const cmsVEC3* u, const cmsVEC3* v);
+CMSAPI cmsFloat64Number CMSEXPORT _cmsVEC3length(const cmsVEC3* a);
+CMSAPI cmsFloat64Number CMSEXPORT _cmsVEC3distance(const cmsVEC3* a, const cmsVEC3* b);
+
+CMSAPI void CMSEXPORT _cmsMAT3identity(cmsMAT3* a);
+CMSAPI cmsBool CMSEXPORT _cmsMAT3isIdentity(const cmsMAT3* a);
+CMSAPI void CMSEXPORT _cmsMAT3per(cmsMAT3* r, const cmsMAT3* a, const cmsMAT3* b);
+CMSAPI cmsBool CMSEXPORT _cmsMAT3inverse(const cmsMAT3* a, cmsMAT3* b);
+CMSAPI cmsBool CMSEXPORT _cmsMAT3solve(cmsVEC3* x, cmsMAT3* a, cmsVEC3* b);
+CMSAPI void CMSEXPORT _cmsMAT3eval(cmsVEC3* r, const cmsMAT3* a, const cmsVEC3* v);
+
+
+// Error logging -------------------------------------------------------------------------------------
+
+CMSAPI void CMSEXPORT cmsSignalError(cmsContext ContextID, cmsUInt32Number ErrorCode, const char *ErrorText, ...);
+
+// Memory management ----------------------------------------------------------------------------------
+
+CMSAPI void* CMSEXPORT _cmsMalloc(cmsContext ContextID, cmsUInt32Number size);
+CMSAPI void* CMSEXPORT _cmsMallocZero(cmsContext ContextID, cmsUInt32Number size);
+CMSAPI void* CMSEXPORT _cmsCalloc(cmsContext ContextID, cmsUInt32Number num, cmsUInt32Number size);
+CMSAPI void* CMSEXPORT _cmsRealloc(cmsContext ContextID, void* Ptr, cmsUInt32Number NewSize);
+CMSAPI void CMSEXPORT _cmsFree(cmsContext ContextID, void* Ptr);
+CMSAPI void* CMSEXPORT _cmsDupMem(cmsContext ContextID, const void* Org, cmsUInt32Number size);
+
+// I/O handler ----------------------------------------------------------------------------------
+
+struct _cms_io_handler {
+
+ void* stream; // Associated stream, which is implemented differently depending on media.
+
+ cmsContext ContextID;
+ cmsUInt32Number UsedSpace;
+ cmsUInt32Number ReportedSize;
+ char PhysicalFile[cmsMAX_PATH];
+
+ cmsUInt32Number (* Read)(struct _cms_io_handler* iohandler, void *Buffer,
+ cmsUInt32Number size,
+ cmsUInt32Number count);
+ cmsBool (* Seek)(struct _cms_io_handler* iohandler, cmsUInt32Number offset);
+ cmsBool (* Close)(struct _cms_io_handler* iohandler);
+ cmsUInt32Number (* Tell)(struct _cms_io_handler* iohandler);
+ cmsBool (* Write)(struct _cms_io_handler* iohandler, cmsUInt32Number size,
+ const void* Buffer);
+};
+
+// Endianess adjust functions
+CMSAPI cmsUInt16Number CMSEXPORT _cmsAdjustEndianess16(cmsUInt16Number Word);
+CMSAPI cmsUInt32Number CMSEXPORT _cmsAdjustEndianess32(cmsUInt32Number Value);
+CMSAPI void CMSEXPORT _cmsAdjustEndianess64(cmsUInt64Number* Result, cmsUInt64Number* QWord);
+
+// Helper IO functions
+CMSAPI cmsBool CMSEXPORT _cmsReadUInt8Number(cmsIOHANDLER* io, cmsUInt8Number* n);
+CMSAPI cmsBool CMSEXPORT _cmsReadUInt16Number(cmsIOHANDLER* io, cmsUInt16Number* n);
+CMSAPI cmsBool CMSEXPORT _cmsReadUInt32Number(cmsIOHANDLER* io, cmsUInt32Number* n);
+CMSAPI cmsBool CMSEXPORT _cmsReadFloat32Number(cmsIOHANDLER* io, cmsFloat32Number* n);
+CMSAPI cmsBool CMSEXPORT _cmsReadUInt64Number(cmsIOHANDLER* io, cmsUInt64Number* n);
+CMSAPI cmsBool CMSEXPORT _cmsRead15Fixed16Number(cmsIOHANDLER* io, cmsFloat64Number* n);
+CMSAPI cmsBool CMSEXPORT _cmsReadXYZNumber(cmsIOHANDLER* io, cmsCIEXYZ* XYZ);
+CMSAPI cmsBool CMSEXPORT _cmsReadUInt16Array(cmsIOHANDLER* io, cmsUInt32Number n, cmsUInt16Number* Array);
+
+CMSAPI cmsBool CMSEXPORT _cmsWriteUInt8Number(cmsIOHANDLER* io, cmsUInt8Number n);
+CMSAPI cmsBool CMSEXPORT _cmsWriteUInt16Number(cmsIOHANDLER* io, cmsUInt16Number n);
+CMSAPI cmsBool CMSEXPORT _cmsWriteUInt32Number(cmsIOHANDLER* io, cmsUInt32Number n);
+CMSAPI cmsBool CMSEXPORT _cmsWriteFloat32Number(cmsIOHANDLER* io, cmsFloat32Number n);
+CMSAPI cmsBool CMSEXPORT _cmsWriteUInt64Number(cmsIOHANDLER* io, cmsUInt64Number* n);
+CMSAPI cmsBool CMSEXPORT _cmsWrite15Fixed16Number(cmsIOHANDLER* io, cmsFloat64Number n);
+CMSAPI cmsBool CMSEXPORT _cmsWriteXYZNumber(cmsIOHANDLER* io, const cmsCIEXYZ* XYZ);
+CMSAPI cmsBool CMSEXPORT _cmsWriteUInt16Array(cmsIOHANDLER* io, cmsUInt32Number n, const cmsUInt16Number* Array);
+
+// ICC base tag
+typedef struct {
+ cmsTagTypeSignature sig;
+ cmsInt8Number reserved[4];
+
+} _cmsTagBase;
+
+// Type base helper functions
+CMSAPI cmsTagTypeSignature CMSEXPORT _cmsReadTypeBase(cmsIOHANDLER* io);
+CMSAPI cmsBool CMSEXPORT _cmsWriteTypeBase(cmsIOHANDLER* io, cmsTagTypeSignature sig);
+
+// Alignment functions
+CMSAPI cmsBool CMSEXPORT _cmsReadAlignment(cmsIOHANDLER* io);
+CMSAPI cmsBool CMSEXPORT _cmsWriteAlignment(cmsIOHANDLER* io);
+
+// To deal with text streams. 2K at most
+CMSAPI cmsBool CMSEXPORT _cmsIOPrintf(cmsIOHANDLER* io, const char* frm, ...);
+
+// Fixed point helper functions
+CMSAPI cmsFloat64Number CMSEXPORT _cms8Fixed8toDouble(cmsUInt16Number fixed8);
+CMSAPI cmsUInt16Number CMSEXPORT _cmsDoubleTo8Fixed8(cmsFloat64Number val);
+
+CMSAPI cmsFloat64Number CMSEXPORT _cms15Fixed16toDouble(cmsS15Fixed16Number fix32);
+CMSAPI cmsS15Fixed16Number CMSEXPORT _cmsDoubleTo15Fixed16(cmsFloat64Number v);
+
+// Date/time helper functions
+CMSAPI void CMSEXPORT _cmsEncodeDateTimeNumber(cmsDateTimeNumber *Dest, const struct tm *Source);
+CMSAPI void CMSEXPORT _cmsDecodeDateTimeNumber(const cmsDateTimeNumber *Source, struct tm *Dest);
+
+//----------------------------------------------------------------------------------------------------------
+
+// Shared callbacks for user data
+typedef void (* _cmsFreeUserDataFn)(cmsContext ContextID, void* Data);
+typedef void* (* _cmsDupUserDataFn)(cmsContext ContextID, const void* Data);
+
+//----------------------------------------------------------------------------------------------------------
+
+// Plug-in foundation
+#define cmsPluginMagicNumber 0x61637070 // 'acpp'
+
+#define cmsPluginMemHandlerSig 0x6D656D48 // 'memH'
+#define cmsPluginInterpolationSig 0x696E7048 // 'inpH'
+#define cmsPluginParametricCurveSig 0x70617248 // 'parH'
+#define cmsPluginFormattersSig 0x66726D48 // 'frmH
+#define cmsPluginTagTypeSig 0x74797048 // 'typH'
+#define cmsPluginTagSig 0x74616748 // 'tagH'
+#define cmsPluginRenderingIntentSig 0x696E7448 // 'intH'
+#define cmsPluginMultiProcessElementSig 0x6D706548 // 'mpeH'
+#define cmsPluginOptimizationSig 0x6F707448 // 'optH'
+#define cmsPluginTransformSig 0x7A666D48 // 'xfmH'
+#define cmsPluginMutexSig 0x6D747A48 // 'mtxH'
+
+typedef struct _cmsPluginBaseStruct {
+
+ cmsUInt32Number Magic; // 'acpp' signature
+ cmsUInt32Number ExpectedVersion; // Expected version of LittleCMS
+ cmsUInt32Number Type; // Type of plug-in
+ struct _cmsPluginBaseStruct* Next; // For multiple plugin definition. NULL for end of list.
+
+} cmsPluginBase;
+
+// Maximum number of types in a plugin array
+#define MAX_TYPES_IN_LCMS_PLUGIN 20
+
+//----------------------------------------------------------------------------------------------------------
+
+// Memory handler. Each new plug-in type replaces current behaviour
+
+typedef void* (* _cmsMallocFnPtrType)(cmsContext ContextID, cmsUInt32Number size);
+typedef void (* _cmsFreeFnPtrType)(cmsContext ContextID, void *Ptr);
+typedef void* (* _cmsReallocFnPtrType)(cmsContext ContextID, void* Ptr, cmsUInt32Number NewSize);
+
+typedef void* (* _cmsMalloZerocFnPtrType)(cmsContext ContextID, cmsUInt32Number size);
+typedef void* (* _cmsCallocFnPtrType)(cmsContext ContextID, cmsUInt32Number num, cmsUInt32Number size);
+typedef void* (* _cmsDupFnPtrType)(cmsContext ContextID, const void* Org, cmsUInt32Number size);
+
+typedef struct {
+
+ cmsPluginBase base;
+
+ // Required
+ _cmsMallocFnPtrType MallocPtr;
+ _cmsFreeFnPtrType FreePtr;
+ _cmsReallocFnPtrType ReallocPtr;
+
+ // Optional
+ _cmsMalloZerocFnPtrType MallocZeroPtr;
+ _cmsCallocFnPtrType CallocPtr;
+ _cmsDupFnPtrType DupPtr;
+
+} cmsPluginMemHandler;
+
+
+// ------------------------------------------------------------------------------------------------------------------
+
+// Interpolation. 16 bits and floating point versions.
+struct _cms_interp_struc;
+
+// Interpolation callbacks
+
+// 16 bits forward interpolation. This function performs precision-limited linear interpolation
+// and is supposed to be quite fast. Implementation may be tetrahedral or trilinear, and plug-ins may
+// choose to implement any other interpolation algorithm.
+typedef void (* _cmsInterpFn16)(register const cmsUInt16Number Input[],
+ register cmsUInt16Number Output[],
+ register const struct _cms_interp_struc* p);
+
+// Floating point forward interpolation. Full precision interpolation using floats. This is not a
+// time critical function. Implementation may be tetrahedral or trilinear, and plug-ins may
+// choose to implement any other interpolation algorithm.
+typedef void (* _cmsInterpFnFloat)(cmsFloat32Number const Input[],
+ cmsFloat32Number Output[],
+ const struct _cms_interp_struc* p);
+
+
+
+// This type holds a pointer to an interpolator that can be either 16 bits or float
+typedef union {
+ _cmsInterpFn16 Lerp16; // Forward interpolation in 16 bits
+ _cmsInterpFnFloat LerpFloat; // Forward interpolation in floating point
+} cmsInterpFunction;
+
+// Flags for interpolator selection
+#define CMS_LERP_FLAGS_16BITS 0x0000 // The default
+#define CMS_LERP_FLAGS_FLOAT 0x0001 // Requires different implementation
+#define CMS_LERP_FLAGS_TRILINEAR 0x0100 // Hint only
+
+
+#define MAX_INPUT_DIMENSIONS 8
+
+typedef struct _cms_interp_struc { // Used on all interpolations. Supplied by lcms2 when calling the interpolation function
+
+ cmsContext ContextID; // The calling thread
+
+ cmsUInt32Number dwFlags; // Keep original flags
+ cmsUInt32Number nInputs; // != 1 only in 3D interpolation
+ cmsUInt32Number nOutputs; // != 1 only in 3D interpolation
+
+ cmsUInt32Number nSamples[MAX_INPUT_DIMENSIONS]; // Valid on all kinds of tables
+ cmsUInt32Number Domain[MAX_INPUT_DIMENSIONS]; // Domain = nSamples - 1
+
+ cmsUInt32Number opta[MAX_INPUT_DIMENSIONS]; // Optimization for 3D CLUT. This is the number of nodes premultiplied for each
+ // dimension. For example, in 7 nodes, 7, 7^2 , 7^3, 7^4, etc. On non-regular
+ // Samplings may vary according of the number of nodes for each dimension.
+
+ const void *Table; // Points to the actual interpolation table
+ cmsInterpFunction Interpolation; // Points to the function to do the interpolation
+
+ } cmsInterpParams;
+
+// Interpolators factory
+typedef cmsInterpFunction (* cmsInterpFnFactory)(cmsUInt32Number nInputChannels, cmsUInt32Number nOutputChannels, cmsUInt32Number dwFlags);
+
+// The plug-in
+typedef struct {
+ cmsPluginBase base;
+
+ // Points to a user-supplied function which implements the factory
+ cmsInterpFnFactory InterpolatorsFactory;
+
+} cmsPluginInterpolation;
+
+//----------------------------------------------------------------------------------------------------------
+
+// Parametric curves. A negative type means same function but analytically inverted. Max. number of params is 10
+
+// Evaluator callback for user-suplied parametric curves. May implement more than one type
+typedef cmsFloat64Number (* cmsParametricCurveEvaluator)(cmsInt32Number Type, const cmsFloat64Number Params[10], cmsFloat64Number R);
+
+// Plug-in may implement an arbitrary number of parametric curves
+typedef struct {
+ cmsPluginBase base;
+
+ cmsUInt32Number nFunctions; // Number of supported functions
+ cmsUInt32Number FunctionTypes[MAX_TYPES_IN_LCMS_PLUGIN]; // The identification types
+ cmsUInt32Number ParameterCount[MAX_TYPES_IN_LCMS_PLUGIN]; // Number of parameters for each function
+
+ cmsParametricCurveEvaluator Evaluator; // The evaluator
+
+} cmsPluginParametricCurves;
+//----------------------------------------------------------------------------------------------------------
+
+// Formatters. This plug-in adds new handlers, replacing them if they already exist. Formatters dealing with
+// cmsFloat32Number (bps = 4) or double (bps = 0) types are requested via FormatterFloat callback. Others come across
+// Formatter16 callback
+
+struct _cmstransform_struct;
+
+typedef cmsUInt8Number* (* cmsFormatter16)(register struct _cmstransform_struct* CMMcargo,
+ register cmsUInt16Number Values[],
+ register cmsUInt8Number* Buffer,
+ register cmsUInt32Number Stride);
+
+typedef cmsUInt8Number* (* cmsFormatterFloat)(struct _cmstransform_struct* CMMcargo,
+ cmsFloat32Number Values[],
+ cmsUInt8Number* Buffer,
+ cmsUInt32Number Stride);
+
+// This type holds a pointer to a formatter that can be either 16 bits or cmsFloat32Number
+typedef union {
+ cmsFormatter16 Fmt16;
+ cmsFormatterFloat FmtFloat;
+
+} cmsFormatter;
+
+#define CMS_PACK_FLAGS_16BITS 0x0000
+#define CMS_PACK_FLAGS_FLOAT 0x0001
+
+typedef enum { cmsFormatterInput=0, cmsFormatterOutput=1 } cmsFormatterDirection;
+
+typedef cmsFormatter (* cmsFormatterFactory)(cmsUInt32Number Type, // Specific type, i.e. TYPE_RGB_8
+ cmsFormatterDirection Dir,
+ cmsUInt32Number dwFlags); // precision
+
+// Plug-in may implement an arbitrary number of formatters
+typedef struct {
+ cmsPluginBase base;
+ cmsFormatterFactory FormattersFactory;
+
+} cmsPluginFormatters;
+
+//----------------------------------------------------------------------------------------------------------
+
+// Tag type handler. Each type is free to return anything it wants, and it is up to the caller to
+// know in advance what is the type contained in the tag.
+typedef struct _cms_typehandler_struct {
+
+ cmsTagTypeSignature Signature; // The signature of the type
+
+ // Allocates and reads items
+ void * (* ReadPtr)(struct _cms_typehandler_struct* self,
+ cmsIOHANDLER* io,
+ cmsUInt32Number* nItems,
+ cmsUInt32Number SizeOfTag);
+
+ // Writes n Items
+ cmsBool (* WritePtr)(struct _cms_typehandler_struct* self,
+ cmsIOHANDLER* io,
+ void* Ptr,
+ cmsUInt32Number nItems);
+
+ // Duplicate an item or array of items
+ void* (* DupPtr)(struct _cms_typehandler_struct* self,
+ const void *Ptr,
+ cmsUInt32Number n);
+
+ // Free all resources
+ void (* FreePtr)(struct _cms_typehandler_struct* self,
+ void *Ptr);
+
+ // Additional parameters used by the calling thread
+ cmsContext ContextID;
+ cmsUInt32Number ICCVersion;
+
+} cmsTagTypeHandler;
+
+// Each plug-in implements a single type
+typedef struct {
+ cmsPluginBase base;
+ cmsTagTypeHandler Handler;
+
+} cmsPluginTagType;
+
+//----------------------------------------------------------------------------------------------------------
+
+// This is the tag plugin, which identifies tags. For writing, a pointer to function is provided.
+// This function should return the desired type for this tag, given the version of profile
+// and the data being serialized.
+typedef struct {
+
+ cmsUInt32Number ElemCount; // If this tag needs an array, how many elements should keep
+
+ // For reading.
+ cmsUInt32Number nSupportedTypes; // In how many types this tag can come (MAX_TYPES_IN_LCMS_PLUGIN maximum)
+ cmsTagTypeSignature SupportedTypes[MAX_TYPES_IN_LCMS_PLUGIN];
+
+ // For writting
+ cmsTagTypeSignature (* DecideType)(cmsFloat64Number ICCVersion, const void *Data);
+
+} cmsTagDescriptor;
+
+// Plug-in implements a single tag
+typedef struct {
+ cmsPluginBase base;
+
+ cmsTagSignature Signature;
+ cmsTagDescriptor Descriptor;
+
+} cmsPluginTag;
+
+//----------------------------------------------------------------------------------------------------------
+
+// Custom intents. This function should join all profiles specified in the array in
+// a single LUT. Any custom intent in the chain redirects to custom function. If more than
+// one custom intent is found, the one located first is invoked. Usually users should use only one
+// custom intent, so mixing custom intents in same multiprofile transform is not supported.
+
+typedef cmsPipeline* (* cmsIntentFn)( cmsContext ContextID,
+ cmsUInt32Number nProfiles,
+ cmsUInt32Number Intents[],
+ cmsHPROFILE hProfiles[],
+ cmsBool BPC[],
+ cmsFloat64Number AdaptationStates[],
+ cmsUInt32Number dwFlags);
+
+
+// Each plug-in defines a single intent number.
+typedef struct {
+ cmsPluginBase base;
+ cmsUInt32Number Intent;
+ cmsIntentFn Link;
+ char Description[256];
+
+} cmsPluginRenderingIntent;
+
+
+// The default ICC intents (perceptual, saturation, rel.col and abs.col)
+CMSAPI cmsPipeline* CMSEXPORT _cmsDefaultICCintents(cmsContext ContextID,
+ cmsUInt32Number nProfiles,
+ cmsUInt32Number Intents[],
+ cmsHPROFILE hProfiles[],
+ cmsBool BPC[],
+ cmsFloat64Number AdaptationStates[],
+ cmsUInt32Number dwFlags);
+
+
+//----------------------------------------------------------------------------------------------------------
+
+// Pipelines, Multi Process Elements.
+
+typedef void (* _cmsStageEvalFn) (const cmsFloat32Number In[], cmsFloat32Number Out[], const cmsStage* mpe);
+typedef void*(* _cmsStageDupElemFn) (cmsStage* mpe);
+typedef void (* _cmsStageFreeElemFn) (cmsStage* mpe);
+
+
+// This function allocates a generic MPE
+CMSAPI cmsStage* CMSEXPORT _cmsStageAllocPlaceholder(cmsContext ContextID,
+ cmsStageSignature Type,
+ cmsUInt32Number InputChannels,
+ cmsUInt32Number OutputChannels,
+ _cmsStageEvalFn EvalPtr, // Points to fn that evaluates the element (always in floating point)
+ _cmsStageDupElemFn DupElemPtr, // Points to a fn that duplicates the stage
+ _cmsStageFreeElemFn FreePtr, // Points to a fn that sets the element free
+ void* Data); // A generic pointer to whatever memory needed by the element
+typedef struct {
+ cmsPluginBase base;
+ cmsTagTypeHandler Handler;
+
+} cmsPluginMultiProcessElement;
+
+
+// Data kept in "Element" member of cmsStage
+
+// Curves
+typedef struct {
+ cmsUInt32Number nCurves;
+ cmsToneCurve** TheCurves;
+
+} _cmsStageToneCurvesData;
+
+// Matrix
+typedef struct {
+ cmsFloat64Number* Double; // floating point for the matrix
+ cmsFloat64Number* Offset; // The offset
+
+} _cmsStageMatrixData;
+
+// CLUT
+typedef struct {
+
+ union { // Can have only one of both representations at same time
+ cmsUInt16Number* T; // Points to the table 16 bits table
+ cmsFloat32Number* TFloat; // Points to the cmsFloat32Number table
+
+ } Tab;
+
+ cmsInterpParams* Params;
+ cmsUInt32Number nEntries;
+ cmsBool HasFloatValues;
+
+} _cmsStageCLutData;
+
+
+//----------------------------------------------------------------------------------------------------------
+// Optimization. Using this plug-in, additional optimization strategies may be implemented.
+// The function should return TRUE if any optimization is done on the LUT, this terminates
+// the optimization search. Or FALSE if it is unable to optimize and want to give a chance
+// to the rest of optimizers.
+
+typedef void (* _cmsOPTeval16Fn)(register const cmsUInt16Number In[],
+ register cmsUInt16Number Out[],
+ register const void* Data);
+
+
+typedef cmsBool (* _cmsOPToptimizeFn)(cmsPipeline** Lut,
+ cmsUInt32Number Intent,
+ cmsUInt32Number* InputFormat,
+ cmsUInt32Number* OutputFormat,
+ cmsUInt32Number* dwFlags);
+
+// This function may be used to set the optional evaluator and a block of private data. If private data is being used, an optional
+// duplicator and free functions should also be specified in order to duplicate the LUT construct. Use NULL to inhibit such functionality.
+
+CMSAPI void CMSEXPORT _cmsPipelineSetOptimizationParameters(cmsPipeline* Lut,
+ _cmsOPTeval16Fn Eval16,
+ void* PrivateData,
+ _cmsFreeUserDataFn FreePrivateDataFn,
+ _cmsDupUserDataFn DupPrivateDataFn);
+
+typedef struct {
+ cmsPluginBase base;
+
+ // Optimize entry point
+ _cmsOPToptimizeFn OptimizePtr;
+
+} cmsPluginOptimization;
+
+//----------------------------------------------------------------------------------------------------------
+// Full xform
+typedef void (* _cmsTransformFn)(struct _cmstransform_struct *CMMcargo,
+ const void* InputBuffer,
+ void* OutputBuffer,
+ cmsUInt32Number Size,
+ cmsUInt32Number Stride);
+
+typedef cmsBool (* _cmsTransformFactory)(_cmsTransformFn* xform,
+ void** UserData,
+ _cmsFreeUserDataFn* FreePrivateDataFn,
+ cmsPipeline** Lut,
+ cmsUInt32Number* InputFormat,
+ cmsUInt32Number* OutputFormat,
+ cmsUInt32Number* dwFlags);
+
+
+// Retrieve user data as specified by the factory
+CMSAPI void CMSEXPORT _cmsSetTransformUserData(struct _cmstransform_struct *CMMcargo, void* ptr, _cmsFreeUserDataFn FreePrivateDataFn);
+CMSAPI void * CMSEXPORT _cmsGetTransformUserData(struct _cmstransform_struct *CMMcargo);
+
+
+// Retrieve formatters
+CMSAPI void CMSEXPORT _cmsGetTransformFormatters16 (struct _cmstransform_struct *CMMcargo, cmsFormatter16* FromInput, cmsFormatter16* ToOutput);
+CMSAPI void CMSEXPORT _cmsGetTransformFormattersFloat(struct _cmstransform_struct *CMMcargo, cmsFormatterFloat* FromInput, cmsFormatterFloat* ToOutput);
+
+typedef struct {
+ cmsPluginBase base;
+
+ // Transform entry point
+ _cmsTransformFactory Factory;
+
+} cmsPluginTransform;
+
+//----------------------------------------------------------------------------------------------------------
+// Mutex
+
+typedef void* (* _cmsCreateMutexFnPtrType)(cmsContext ContextID);
+typedef void (* _cmsDestroyMutexFnPtrType)(cmsContext ContextID, void* mtx);
+typedef cmsBool (* _cmsLockMutexFnPtrType)(cmsContext ContextID, void* mtx);
+typedef void (* _cmsUnlockMutexFnPtrType)(cmsContext ContextID, void* mtx);
+
+typedef struct {
+ cmsPluginBase base;
+
+ _cmsCreateMutexFnPtrType CreateMutexPtr;
+ _cmsDestroyMutexFnPtrType DestroyMutexPtr;
+ _cmsLockMutexFnPtrType LockMutexPtr;
+ _cmsUnlockMutexFnPtrType UnlockMutexPtr;
+
+} cmsPluginMutex;
+
+CMSAPI void* CMSEXPORT _cmsCreateMutex(cmsContext ContextID);
+CMSAPI void CMSEXPORT _cmsDestroyMutex(cmsContext ContextID, void* mtx);
+CMSAPI cmsBool CMSEXPORT _cmsLockMutex(cmsContext ContextID, void* mtx);
+CMSAPI void CMSEXPORT _cmsUnlockMutex(cmsContext ContextID, void* mtx);
+
+
+#ifndef CMS_USE_CPP_API
+# ifdef __cplusplus
+ }
+# endif
+#endif
+
+#define _lcms_plugin_H
+#endif