Merge to XFA: Move lcms2 into third_party

Original Review URL: https://codereview.chromium.org/1181943008.
TBR=thestig@chromium.org

Review URL: https://codereview.chromium.org/1187273006.

1 files changed, 1132 insertions, 0 deletions

diff --git a/third_party/lcms2-2.6/src/cmsxform.c b/third_party/lcms2-2.6/src/cmsxform.c
new file mode 100644
index 0000000000..eddb9bd02c
--- /dev/null
+++ b/third_party/lcms2-2.6/src/cmsxform.c
@@ -0,0 +1,1132 @@
+//---------------------------------------------------------------------------------
+//
+//  Little Color Management System
+//  Copyright (c) 1998-2014 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 1.0
+
+// The Context0 observer adaptation state.
+_cmsAdaptationStateChunkType _cmsAdaptationStateChunk = { DEFAULT_OBSERVER_ADAPTATION_STATE };
+
+// Init and duplicate observer adaptation state
+void _cmsAllocAdaptationStateChunk(struct _cmsContext_struct* ctx, 
+                                   const struct _cmsContext_struct* src)
+{
+    static _cmsAdaptationStateChunkType AdaptationStateChunk = { DEFAULT_OBSERVER_ADAPTATION_STATE };
+    void* from;
+     
+    if (src != NULL) {
+        from = src ->chunks[AdaptationStateContext];       
+    }
+    else {
+       from = &AdaptationStateChunk;
+    }
+    
+    ctx ->chunks[AdaptationStateContext] = _cmsSubAllocDup(ctx ->MemPool, from, sizeof(_cmsAdaptationStateChunkType));     
+}
+
+
+// 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)
+{
+    cmsFloat64Number prev;
+    _cmsAdaptationStateChunkType* ptr = (_cmsAdaptationStateChunkType*) _cmsContextGetClientChunk(ContextID, AdaptationStateContext);
+
+    // Get previous value for return
+    prev = ptr ->AdaptationState;
+
+    // Set the value if d is positive or zero
+    if (d >= 0.0) {
+
+        ptr ->AdaptationState = d;
+    }
+
+    // Always return previous value
+    return prev;
+}
+
+
+// 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)
+{    
+    return cmsSetAdaptationStateTHR(NULL, 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 {0x7F00, 0x7F00, 0x7F00, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
+
+_cmsAlarmCodesChunkType _cmsAlarmCodesChunk = { DEFAULT_ALARM_CODES_VALUE };
+
+// 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])
+{
+    _cmsAlarmCodesChunkType* ContextAlarmCodes = (_cmsAlarmCodesChunkType*) _cmsContextGetClientChunk(ContextID, AlarmCodesContext);
+       
+    _cmsAssert(ContextAlarmCodes != NULL); // Can't happen
+    
+    memcpy(ContextAlarmCodes->AlarmCodes, AlarmCodesP, sizeof(ContextAlarmCodes->AlarmCodes));    
+}
+
+// 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])
+{
+    _cmsAlarmCodesChunkType* ContextAlarmCodes = (_cmsAlarmCodesChunkType*) _cmsContextGetClientChunk(ContextID, AlarmCodesContext);
+
+    _cmsAssert(ContextAlarmCodes != NULL); // Can't happen
+
+    memcpy(AlarmCodesP, ContextAlarmCodes->AlarmCodes, sizeof(ContextAlarmCodes->AlarmCodes));
+}
+
+void CMSEXPORT cmsSetAlarmCodes(const cmsUInt16Number NewAlarm[cmsMAXCHANNELS])
+{
+    _cmsAssert(NewAlarm != NULL);
+
+    cmsSetAlarmCodesTHR(NULL, NewAlarm);
+}
+
+void CMSEXPORT cmsGetAlarmCodes(cmsUInt16Number OldAlarm[cmsMAXCHANNELS])
+{ 
+    _cmsAssert(OldAlarm != NULL);
+    cmsGetAlarmCodesTHR(NULL, OldAlarm);
+}
+
+
+// Init and duplicate alarm codes
+void _cmsAllocAlarmCodesChunk(struct _cmsContext_struct* ctx, 
+                              const struct _cmsContext_struct* src)
+{
+    static _cmsAlarmCodesChunkType AlarmCodesChunk = { DEFAULT_ALARM_CODES_VALUE };
+    void* from;
+     
+    if (src != NULL) {
+        from = src ->chunks[AlarmCodesContext];       
+    }
+    else {
+       from = &AlarmCodesChunk;
+    }
+    
+    ctx ->chunks[AlarmCodesContext] = _cmsSubAllocDup(ctx ->MemPool, from, sizeof(_cmsAlarmCodesChunkType));     
+}
+
+// -----------------------------------------------------------------------
+
+// Get rid of transform resources
+void CMSEXPORT cmsDeleteTransform(cmsHTRANSFORM hTransform)
+{
+    _cmsTRANSFORM* p = (_cmsTRANSFORM*) hTransform;
+
+    _cmsAssert(p != NULL);
+
+    if (p -> GamutCheck)
+        cmsPipelineFree(p -> GamutCheck);
+
+    if (p -> Lut)
+        cmsPipelineFree(p -> Lut);
+
+    if (p ->InputColorant)
+        cmsFreeNamedColorList(p ->InputColorant);
+
+    if (p -> OutputColorant)
+        cmsFreeNamedColorList(p ->OutputColorant);
+
+    if (p ->Sequence)
+        cmsFreeProfileSequenceDescription(p ->Sequence);
+
+    if (p ->UserData)
+        p ->FreeUserData(p ->ContextID, p ->UserData);
+
+    _cmsFree(p ->ContextID, (void *) p);
+}
+
+// Apply transform.
+void CMSEXPORT cmsDoTransform(cmsHTRANSFORM  Transform,
+                              const void* InputBuffer,
+                              void* OutputBuffer,
+                              cmsUInt32Number Size)
+
+{
+    _cmsTRANSFORM* p = (_cmsTRANSFORM*) Transform;
+
+    p -> xform(p, InputBuffer, OutputBuffer, Size, Size);
+}
+
+
+// Apply transform.
+void CMSEXPORT cmsDoTransformStride(cmsHTRANSFORM  Transform,
+                              const void* InputBuffer,
+                              void* OutputBuffer,
+                              cmsUInt32Number Size, cmsUInt32Number Stride)
+
+{
+    _cmsTRANSFORM* p = (_cmsTRANSFORM*) Transform;
+
+    p -> xform(p, InputBuffer, OutputBuffer, Size, Stride);
+}
+
+
+// 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 Size, cmsUInt32Number Stride)
+{
+    cmsUInt8Number* accum;
+    cmsUInt8Number* output;
+    cmsFloat32Number fIn[cmsMAXCHANNELS], fOut[cmsMAXCHANNELS];
+    cmsFloat32Number OutOfGamut;
+    cmsUInt32Number i, j;
+
+    accum  = (cmsUInt8Number*)  in;
+    output = (cmsUInt8Number*)  out;
+
+    for (i=0; i < Size; i++) {
+
+        accum = p -> FromInputFloat(p, fIn, accum, Stride);
+
+        // Any gamut chack to do?
+        if (p ->GamutCheck != NULL) {
+
+            // Evaluate gamut marker.
+            cmsPipelineEvalFloat( fIn, &OutOfGamut, p ->GamutCheck);
+
+            // Is current color out of gamut?
+            if (OutOfGamut > 0.0) {
+
+                // Certainly, out of gamut
+                for (j=0; j < cmsMAXCHANNELS; j++)
+                    fOut[j] = -1.0;
+
+            }
+            else {
+                // No, proceed normally
+                cmsPipelineEvalFloat(fIn, fOut, p -> Lut);
+            }
+        }
+        else {
+
+            // No gamut check at all
+            cmsPipelineEvalFloat(fIn, fOut, p -> Lut);
+        }
+
+        // Back to asked representation
+        output = p -> ToOutputFloat(p, fOut, output, Stride);
+    }
+}
+
+
+static
+void NullFloatXFORM(_cmsTRANSFORM* p,
+                    const void* in,
+                    void* out, 
+                    cmsUInt32Number Size,
+                    cmsUInt32Number Stride)
+{
+    cmsUInt8Number* accum;
+    cmsUInt8Number* output;
+    cmsFloat32Number fIn[cmsMAXCHANNELS];
+    cmsUInt32Number i, n;
+
+    accum  = (cmsUInt8Number*)  in;
+    output = (cmsUInt8Number*)  out;
+    n = Size;                   
+
+    for (i=0; i < n; i++) {
+
+        accum  = p -> FromInputFloat(p, fIn, accum, Stride);
+        output = p -> ToOutputFloat(p, fIn, output, Stride);
+    }
+}
+
+// 16 bit precision -----------------------------------------------------------------------------------------------------------
+
+// Null transformation, only applies formatters. No cach?static
+void NullXFORM(_cmsTRANSFORM* p,
+               const void* in,
+               void* out, cmsUInt32Number Size,
+               cmsUInt32Number Stride)
+{
+    cmsUInt8Number* accum;
+    cmsUInt8Number* output;
+    cmsUInt16Number wIn[cmsMAXCHANNELS];
+    cmsUInt32Number i, n;
+
+    accum  = (cmsUInt8Number*)  in;
+    output = (cmsUInt8Number*)  out;
+    n = Size;                    // Buffer len
+
+    for (i=0; i < n; i++) {
+
+        accum  = p -> FromInput(p, wIn, accum, Stride);
+        output = p -> ToOutput(p, wIn, output, Stride);
+    }
+}
+
+
+// No gamut check, no cache, 16 bits
+static
+void PrecalculatedXFORM(_cmsTRANSFORM* p,
+                        const void* in,
+                        void* out, cmsUInt32Number Size, cmsUInt32Number Stride)
+{
+    register cmsUInt8Number* accum;
+    register cmsUInt8Number* output;
+    cmsUInt16Number wIn[cmsMAXCHANNELS], wOut[cmsMAXCHANNELS];
+    cmsUInt32Number i, n;
+
+    accum  = (cmsUInt8Number*)  in;
+    output = (cmsUInt8Number*)  out;
+    n = Size;
+
+    for (i=0; i < n; i++) {
+
+        accum = p -> FromInput(p, wIn, accum, Stride);
+        p ->Lut ->Eval16Fn(wIn, wOut, p -> Lut->Data);
+        output = p -> ToOutput(p, wOut, output, Stride);
+    }
+}
+
+
+// Auxiliar: 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[])
+{
+    cmsUInt16Number wOutOfGamut;
+
+    p ->GamutCheck ->Eval16Fn(wIn, &wOutOfGamut, p ->GamutCheck ->Data);
+    if (wOutOfGamut >= 1) {
+
+        cmsUInt16Number i;
+        _cmsAlarmCodesChunkType* ContextAlarmCodes = (_cmsAlarmCodesChunkType*) _cmsContextGetClientChunk(p->ContextID, AlarmCodesContext);        
+
+        for (i=0; i < p ->Lut->OutputChannels; i++) {
+
+            wOut[i] = ContextAlarmCodes ->AlarmCodes[i];
+        }
+    }
+    else
+        p ->Lut ->Eval16Fn(wIn, wOut, p -> Lut->Data);
+}
+
+// Gamut check, No cach? 16 bits.
+static
+void PrecalculatedXFORMGamutCheck(_cmsTRANSFORM* p,
+                                  const void* in,
+                                  void* out, cmsUInt32Number Size, cmsUInt32Number Stride)
+{
+    cmsUInt8Number* accum;
+    cmsUInt8Number* output;
+    cmsUInt16Number wIn[cmsMAXCHANNELS], wOut[cmsMAXCHANNELS];
+    cmsUInt32Number i, n;
+
+    accum  = (cmsUInt8Number*)  in;
+    output = (cmsUInt8Number*)  out;
+    n = Size;                    // Buffer len
+
+    for (i=0; i < n; i++) {
+
+        accum = p -> FromInput(p, wIn, accum, Stride);
+        TransformOnePixelWithGamutCheck(p, wIn, wOut);
+        output = p -> ToOutput(p, wOut, output, Stride);
+    }
+}
+
+
+// No gamut check, Cach? 16 bits,
+static
+void CachedXFORM(_cmsTRANSFORM* p,
+                 const void* in,
+                 void* out, cmsUInt32Number Size, cmsUInt32Number Stride)
+{
+    cmsUInt8Number* accum;
+    cmsUInt8Number* output;
+    cmsUInt16Number wIn[cmsMAXCHANNELS], wOut[cmsMAXCHANNELS];
+    cmsUInt32Number i, n;
+    _cmsCACHE Cache;
+
+    accum  = (cmsUInt8Number*)  in;
+    output = (cmsUInt8Number*)  out;
+    n = Size;                    // Buffer len
+
+    // Empty buffers for quick memcmp
+    memset(wIn,  0, sizeof(wIn));
+    memset(wOut, 0, sizeof(wOut));
+
+    // Get copy of zero cache
+    memcpy(&Cache, &p ->Cache, sizeof(Cache));
+
+    for (i=0; i < n; i++) {
+
+        accum = p -> FromInput(p, wIn, accum, Stride);
+
+        if (memcmp(wIn, Cache.CacheIn, sizeof(Cache.CacheIn)) == 0) {
+
+            memcpy(wOut, Cache.CacheOut, sizeof(Cache.CacheOut));
+        }
+        else {
+
+            p ->Lut ->Eval16Fn(wIn, wOut, p -> Lut->Data);
+
+            memcpy(Cache.CacheIn,  wIn,  sizeof(Cache.CacheIn));
+            memcpy(Cache.CacheOut, wOut, sizeof(Cache.CacheOut));
+        }
+
+        output = p -> ToOutput(p, wOut, output, Stride);
+    }
+
+}
+
+
+// All those nice features together
+static
+void CachedXFORMGamutCheck(_cmsTRANSFORM* p,
+                           const void* in,
+                           void* out, cmsUInt32Number Size, cmsUInt32Number Stride)
+{
+       cmsUInt8Number* accum;
+       cmsUInt8Number* output;
+       cmsUInt16Number wIn[cmsMAXCHANNELS], wOut[cmsMAXCHANNELS];
+       cmsUInt32Number i, n;
+       _cmsCACHE Cache;
+
+       accum  = (cmsUInt8Number*)  in;
+       output = (cmsUInt8Number*)  out;
+       n = Size;                    // Buffer len
+
+       // Empty buffers for quick memcmp
+       memset(wIn,  0, sizeof(cmsUInt16Number) * cmsMAXCHANNELS);
+       memset(wOut, 0, sizeof(cmsUInt16Number) * cmsMAXCHANNELS);
+
+       // Get copy of zero cache
+       memcpy(&Cache, &p ->Cache, sizeof(Cache));
+
+       for (i=0; i < n; i++) {
+
+            accum = p -> FromInput(p, wIn, accum, Stride);
+
+            if (memcmp(wIn, Cache.CacheIn, sizeof(Cache.CacheIn)) == 0) {
+                    memcpy(wOut, Cache.CacheOut, sizeof(Cache.CacheOut));
+            }
+            else {
+                    TransformOnePixelWithGamutCheck(p, wIn, wOut);
+                    memcpy(Cache.CacheIn, wIn, sizeof(Cache.CacheIn));
+                    memcpy(Cache.CacheOut, wOut, sizeof(Cache.CacheOut));
+            }
+
+            output = p -> ToOutput(p, wOut, output, Stride);
+       }
+
+}
+
+// -------------------------------------------------------------------------------------------------------------
+
+// List of used-defined transform factories
+typedef struct _cmsTransformCollection_st {
+
+    _cmsTransformFactory  Factory;
+    struct _cmsTransformCollection_st *Next;
+
+} _cmsTransformCollection;
+
+// The linked list head
+_cmsTransformPluginChunkType _cmsTransformPluginChunk = { NULL };
+
+
+// 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)
+{
+   _cmsTransformPluginChunkType newHead = { NULL };
+   _cmsTransformCollection*  entry;
+   _cmsTransformCollection*  Anterior = NULL;
+   _cmsTransformPluginChunkType* head = (_cmsTransformPluginChunkType*) src->chunks[TransformPlugin];
+
+    // Walk the list copying all nodes
+   for (entry = head->TransformCollection;
+        entry != NULL;
+        entry = entry ->Next) {
+
+            _cmsTransformCollection *newEntry = ( _cmsTransformCollection *) _cmsSubAllocDup(ctx ->MemPool, entry, sizeof(_cmsTransformCollection));
+   
+            if (newEntry == NULL) 
+                return;
+
+            // We want to keep the linked list order, so this is a little bit tricky
+            newEntry -> Next = NULL;
+            if (Anterior)
+                Anterior -> Next = newEntry;
+     
+            Anterior = newEntry;
+
+            if (newHead.TransformCollection == NULL)
+                newHead.TransformCollection = newEntry;
+    }
+
+  ctx ->chunks[TransformPlugin] = _cmsSubAllocDup(ctx->MemPool, &newHead, sizeof(_cmsTransformPluginChunkType));
+}
+
+void _cmsAllocTransformPluginChunk(struct _cmsContext_struct* ctx, 
+                                        const struct _cmsContext_struct* src)
+{
+    if (src != NULL) {
+
+        // Copy all linked list
+        DupPluginTransformList(ctx, src);
+    }
+    else {
+        static _cmsTransformPluginChunkType TransformPluginChunkType = { NULL };
+        ctx ->chunks[TransformPlugin] = _cmsSubAllocDup(ctx ->MemPool, &TransformPluginChunkType, sizeof(_cmsTransformPluginChunkType));
+    }
+}
+
+
+
+// Register new ways to transform
+cmsBool  _cmsRegisterTransformPlugin(cmsContext ContextID, cmsPluginBase* Data)
+{
+    cmsPluginTransform* Plugin = (cmsPluginTransform*) Data;
+    _cmsTransformCollection* fl;
+    _cmsTransformPluginChunkType* ctx = ( _cmsTransformPluginChunkType*) _cmsContextGetClientChunk(ContextID,TransformPlugin);
+
+    if (Data == NULL) {
+
+        // Free the chain. Memory is safely freed at exit
+        ctx->TransformCollection = NULL;
+        return TRUE;
+    }
+
+    // Factory callback is required
+    if (Plugin ->Factory == NULL) return FALSE;
+
+
+    fl = (_cmsTransformCollection*) _cmsPluginMalloc(ContextID, sizeof(_cmsTransformCollection));
+    if (fl == NULL) return FALSE;
+
+    // Copy the parameters
+    fl ->Factory = Plugin ->Factory;
+
+    // Keep linked list
+    fl ->Next = ctx->TransformCollection;
+    ctx->TransformCollection = fl;
+
+    // All is ok
+    return TRUE;
+}
+
+
+void CMSEXPORT _cmsSetTransformUserData(struct _cmstransform_struct *CMMcargo, void* ptr, _cmsFreeUserDataFn FreePrivateDataFn)
+{
+    _cmsAssert(CMMcargo != NULL);
+    CMMcargo ->UserData = ptr;
+    CMMcargo ->FreeUserData = FreePrivateDataFn;
+}
+
+// returns the pointer defined by the plug-in to store private data
+void * CMSEXPORT _cmsGetTransformUserData(struct _cmstransform_struct *CMMcargo)
+{
+    _cmsAssert(CMMcargo != NULL);
+    return CMMcargo ->UserData;
+}
+
+// returns the current formatters
+void CMSEXPORT _cmsGetTransformFormatters16(struct _cmstransform_struct *CMMcargo, cmsFormatter16* FromInput, cmsFormatter16* ToOutput)
+{
+     _cmsAssert(CMMcargo != NULL);
+     if (FromInput) *FromInput = CMMcargo ->FromInput;
+     if (ToOutput)  *ToOutput  = CMMcargo ->ToOutput;
+}
+
+void CMSEXPORT _cmsGetTransformFormattersFloat(struct _cmstransform_struct *CMMcargo, cmsFormatterFloat* FromInput, cmsFormatterFloat* ToOutput)
+{
+     _cmsAssert(CMMcargo != NULL);
+     if (FromInput) *FromInput = CMMcargo ->FromInputFloat;
+     if (ToOutput)  *ToOutput  = CMMcargo ->ToOutputFloat;
+}
+
+
+// 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)
+{
+     _cmsTransformPluginChunkType* ctx = ( _cmsTransformPluginChunkType*) _cmsContextGetClientChunk(ContextID, TransformPlugin);
+     _cmsTransformCollection* Plugin;
+
+    // Allocate needed memory
+    _cmsTRANSFORM* p = (_cmsTRANSFORM*) _cmsMallocZero(ContextID, sizeof(_cmsTRANSFORM));
+    if (!p) return NULL;
+
+    // Store the proposed pipeline
+    p ->Lut = lut;
+
+    // Let's see if any plug-in want to do the transform by itself
+    for (Plugin = ctx ->TransformCollection;
+        Plugin != NULL;
+        Plugin = Plugin ->Next) {
+
+            if (Plugin ->Factory(&p->xform, &p->UserData, &p ->FreeUserData, &p ->Lut, InputFormat, OutputFormat, dwFlags)) {
+                
+                // Last plugin in the declaration order takes control. We just keep
+                // the original parameters as a logging. 
+                // Note that cmsFLAGS_CAN_CHANGE_FORMATTER is not set, so by default 
+                // an optimized transform is not reusable. The plug-in can, however, change
+                // the flags and make it suitable.
+
+                p ->ContextID       = ContextID;               
+                p ->InputFormat     = *InputFormat;
+                p ->OutputFormat    = *OutputFormat;
+                p ->dwOriginalFlags = *dwFlags;
+               
+                // Fill the formatters just in case the optimized routine is interested.
+                // No error is thrown if the formatter doesn't exist. It is up to the optimization 
+                // factory to decide what to do in those cases.
+                p ->FromInput      = _cmsGetFormatter(ContextID, *InputFormat,  cmsFormatterInput, CMS_PACK_FLAGS_16BITS).Fmt16;
+                p ->ToOutput       = _cmsGetFormatter(ContextID, *OutputFormat, cmsFormatterOutput, CMS_PACK_FLAGS_16BITS).Fmt16;
+                p ->FromInputFloat = _cmsGetFormatter(ContextID, *InputFormat,  cmsFormatterInput, CMS_PACK_FLAGS_FLOAT).FmtFloat;
+                p ->ToOutputFloat  = _cmsGetFormatter(ContextID, *OutputFormat, cmsFormatterOutput, CMS_PACK_FLAGS_FLOAT).FmtFloat;
+
+                return p;
+            }
+    }
+
+    // Not suitable for the transform plug-in, let's check  the pipeline plug-in
+    if (p ->Lut != NULL)
+        _cmsOptimizePipeline(ContextID, &p->Lut, Intent, InputFormat, OutputFormat, dwFlags);
+
+    // Check whatever this is a true floating point transform
+    if (_cmsFormatterIsFloat(*InputFormat) && _cmsFormatterIsFloat(*OutputFormat)) {
+
+        // Get formatter function always return a valid union, but the contents of this union may be NULL.
+        p ->FromInputFloat = _cmsGetFormatter(ContextID, *InputFormat,  cmsFormatterInput, CMS_PACK_FLAGS_FLOAT).FmtFloat;
+        p ->ToOutputFloat  = _cmsGetFormatter(ContextID, *OutputFormat, cmsFormatterOutput, CMS_PACK_FLAGS_FLOAT).FmtFloat;
+        *dwFlags |= cmsFLAGS_CAN_CHANGE_FORMATTER;
+
+        if (p ->FromInputFloat == NULL || p ->ToOutputFloat == NULL) {
+
+            cmsSignalError(ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unsupported raster format");
+            _cmsFree(ContextID, p);
+            return NULL;
+        }
+
+        if (*dwFlags & cmsFLAGS_NULLTRANSFORM) {
+
+            p ->xform = NullFloatXFORM;
+        }
+        else {
+            // Float transforms don't use cach? always are non-NULL
+            p ->xform = FloatXFORM;
+        }
+
+    }
+    else {
+
+        if (*InputFormat == 0 && *OutputFormat == 0) {
+            p ->FromInput = p ->ToOutput = NULL;
+            *dwFlags |= cmsFLAGS_CAN_CHANGE_FORMATTER;
+        }
+        else {
+
+            int BytesPerPixelInput;
+
+            p ->FromInput = _cmsGetFormatter(ContextID, *InputFormat,  cmsFormatterInput, CMS_PACK_FLAGS_16BITS).Fmt16;
+            p ->ToOutput  = _cmsGetFormatter(ContextID, *OutputFormat, cmsFormatterOutput, CMS_PACK_FLAGS_16BITS).Fmt16;
+
+            if (p ->FromInput == NULL || p ->ToOutput == NULL) {
+
+                cmsSignalError(ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unsupported raster format");
+                _cmsFree(ContextID, p);
+                return NULL;
+            }
+
+            BytesPerPixelInput = T_BYTES(p ->InputFormat);
+            if (BytesPerPixelInput == 0 || BytesPerPixelInput >= 2)
+                   *dwFlags |= cmsFLAGS_CAN_CHANGE_FORMATTER;
+
+        }
+
+        if (*dwFlags & cmsFLAGS_NULLTRANSFORM) {
+
+            p ->xform = NullXFORM;
+        }
+        else {
+            if (*dwFlags & cmsFLAGS_NOCACHE) {
+
+                if (*dwFlags & cmsFLAGS_GAMUTCHECK)
+                    p ->xform = PrecalculatedXFORMGamutCheck;  // Gamut check, no cach?                else
+                    p ->xform = PrecalculatedXFORM;  // No cach? no gamut check
+            }
+            else {
+
+                if (*dwFlags & cmsFLAGS_GAMUTCHECK)
+                    p ->xform = CachedXFORMGamutCheck;    // Gamut check, cach?                else
+                    p ->xform = CachedXFORM;  // No gamut check, cach?
+            }
+        }
+    }
+
+    p ->InputFormat     = *InputFormat;
+    p ->OutputFormat    = *OutputFormat;
+    p ->dwOriginalFlags = *dwFlags;
+    p ->ContextID       = ContextID;
+    p ->UserData        = NULL;
+    return p;
+}
+
+static
+cmsBool GetXFormColorSpaces(int nProfiles, cmsHPROFILE hProfiles[], cmsColorSpaceSignature* Input, cmsColorSpaceSignature* Output)
+{
+    cmsColorSpaceSignature ColorSpaceIn, ColorSpaceOut;
+    cmsColorSpaceSignature PostColorSpace;
+    int i;
+
+    if (nProfiles <= 0) return FALSE;
+    if (hProfiles[0] == NULL) return FALSE;
+
+    *Input = PostColorSpace = cmsGetColorSpace(hProfiles[0]);
+
+    for (i=0; i < nProfiles; i++) {
+
+        cmsProfileClassSignature cls;
+        cmsHPROFILE hProfile = hProfiles[i];
+
+        int lIsInput = (PostColorSpace != cmsSigXYZData) &&
+                       (PostColorSpace != cmsSigLabData);
+
+        if (hProfile == NULL) return FALSE;
+
+        cls = cmsGetDeviceClass(hProfile);
+
+        if (cls == cmsSigNamedColorClass) {
+
+            ColorSpaceIn    = cmsSig1colorData;
+            ColorSpaceOut   = (nProfiles > 1) ? cmsGetPCS(hProfile) : cmsGetColorSpace(hProfile);
+        }
+        else
+        if (lIsInput || (cls == cmsSigLinkClass)) {
+
+            ColorSpaceIn    = cmsGetColorSpace(hProfile);
+            ColorSpaceOut   = cmsGetPCS(hProfile);
+        }
+        else
+        {
+            ColorSpaceIn    = cmsGetPCS(hProfile);
+            ColorSpaceOut   = cmsGetColorSpace(hProfile);
+        }
+
+        if (i==0)
+            *Input = ColorSpaceIn;
+
+        PostColorSpace = ColorSpaceOut;
+    }
+
+    *Output = PostColorSpace;
+
+    return TRUE;
+}
+
+// Check colorspace
+static
+cmsBool  IsProperColorSpace(cmsColorSpaceSignature Check, cmsUInt32Number dwFormat)
+{
+    int Space1 = T_COLORSPACE(dwFormat);
+    int Space2 = _cmsLCMScolorSpace(Check);
+
+    if (Space1 == PT_ANY) return TRUE;
+    if (Space1 == Space2) return TRUE;
+
+    if (Space1 == PT_LabV2 && Space2 == PT_Lab) return TRUE;
+    if (Space1 == PT_Lab   && Space2 == PT_LabV2) return TRUE;
+
+    return FALSE;
+}
+
+// ----------------------------------------------------------------------------------------------------------------
+
+static
+void SetWhitePoint(cmsCIEXYZ* wtPt, const cmsCIEXYZ* src)
+{
+    if (src == NULL) {
+        wtPt ->X = cmsD50X;
+        wtPt ->Y = cmsD50Y;
+        wtPt ->Z = cmsD50Z;
+    }
+    else {
+        wtPt ->X = src->X;
+        wtPt ->Y = src->Y;
+        wtPt ->Z = src->Z;
+    }
+
+}
+
+// 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)
+{
+    _cmsTRANSFORM* xform;    
+    cmsColorSpaceSignature EntryColorSpace;
+    cmsColorSpaceSignature ExitColorSpace;
+    cmsPipeline* Lut;
+    cmsUInt32Number LastIntent = Intents[nProfiles-1];
+
+    // If it is a fake transform
+    if (dwFlags & cmsFLAGS_NULLTRANSFORM)
+    {
+        return AllocEmptyTransform(ContextID, NULL, INTENT_PERCEPTUAL, &InputFormat, &OutputFormat, &dwFlags);
+    }
+
+    // If gamut check is requested, make sure we have a gamut profile
+    if (dwFlags & cmsFLAGS_GAMUTCHECK) {
+        if (hGamutProfile == NULL) dwFlags &= ~cmsFLAGS_GAMUTCHECK;
+    }
+
+    // On floating point transforms, inhibit cache
+    if (_cmsFormatterIsFloat(InputFormat) || _cmsFormatterIsFloat(OutputFormat))
+        dwFlags |= cmsFLAGS_NOCACHE;
+
+    // Mark entry/exit spaces
+    if (!GetXFormColorSpaces(nProfiles, hProfiles, &EntryColorSpace, &ExitColorSpace)) {
+        cmsSignalError(ContextID, cmsERROR_NULL, "NULL input profiles on transform");
+        return NULL;
+    }
+
+    // Check if proper colorspaces
+    if (!IsProperColorSpace(EntryColorSpace, InputFormat)) {
+        cmsSignalError(ContextID, cmsERROR_COLORSPACE_CHECK, "Wrong input color space on transform");
+        return NULL;
+    }
+
+    if (!IsProperColorSpace(ExitColorSpace, OutputFormat)) {
+        cmsSignalError(ContextID, cmsERROR_COLORSPACE_CHECK, "Wrong output color space on transform");
+        return NULL;
+    }
+
+    // Create a pipeline with all transformations
+    Lut = _cmsLinkProfiles(ContextID, nProfiles, Intents, hProfiles, BPC, AdaptationStates, dwFlags);
+    if (Lut == NULL) {
+        cmsSignalError(ContextID, cmsERROR_NOT_SUITABLE, "Couldn't link the profiles");
+        return NULL;
+    }
+
+    // Check channel count
+    if ((cmsChannelsOf(EntryColorSpace) != cmsPipelineInputChannels(Lut)) ||
+        (cmsChannelsOf(ExitColorSpace)  != cmsPipelineOutputChannels(Lut))) {
+        cmsPipelineFree(Lut);
+        cmsSignalError(ContextID, cmsERROR_NOT_SUITABLE, "Channel count doesn't match. Profile is corrupted");
+        return NULL;
+    }
+
+
+    // All seems ok
+    xform = AllocEmptyTransform(ContextID, Lut, LastIntent, &InputFormat, &OutputFormat, &dwFlags);
+    if (xform == NULL) {
+        return NULL;
+    }
+
+    // Keep values
+    xform ->EntryColorSpace = EntryColorSpace;
+    xform ->ExitColorSpace  = ExitColorSpace;
+    xform ->RenderingIntent = Intents[nProfiles-1];
+
+    // Take white points
+    SetWhitePoint(&xform->EntryWhitePoint, (cmsCIEXYZ*) cmsReadTag(hProfiles[0], cmsSigMediaWhitePointTag));
+    SetWhitePoint(&xform->ExitWhitePoint,  (cmsCIEXYZ*) cmsReadTag(hProfiles[nProfiles-1], cmsSigMediaWhitePointTag));
+   
+
+    // Create a gamut check LUT if requested
+    if (hGamutProfile != NULL && (dwFlags & cmsFLAGS_GAMUTCHECK))
+        xform ->GamutCheck  = _cmsCreateGamutCheckPipeline(ContextID, hProfiles,
+                                                        BPC, Intents,
+                                                        AdaptationStates,
+                                                        nGamutPCSposition,
+                                                        hGamutProfile);
+
+
+    // Try to read input and output colorant table
+    if (cmsIsTag(hProfiles[0], cmsSigColorantTableTag)) {
+
+        // Input table can only come in this way.
+        xform ->InputColorant = cmsDupNamedColorList((cmsNAMEDCOLORLIST*) cmsReadTag(hProfiles[0], cmsSigColorantTableTag));
+    }
+
+    // Output is a little bit more complex.
+    if (cmsGetDeviceClass(hProfiles[nProfiles-1]) == cmsSigLinkClass) {
+
+        // This tag may exist only on devicelink profiles.
+        if (cmsIsTag(hProfiles[nProfiles-1], cmsSigColorantTableOutTag)) {
+
+            // It may be NULL if error
+            xform ->OutputColorant = cmsDupNamedColorList((cmsNAMEDCOLORLIST*) cmsReadTag(hProfiles[nProfiles-1], cmsSigColorantTableOutTag));
+        }
+
+    } else {
+
+        if (cmsIsTag(hProfiles[nProfiles-1], cmsSigColorantTableTag)) {
+
+            xform -> OutputColorant = cmsDupNamedColorList((cmsNAMEDCOLORLIST*) cmsReadTag(hProfiles[nProfiles-1], cmsSigColorantTableTag));
+        }
+    }
+
+    // Store the sequence of profiles
+    if (dwFlags & cmsFLAGS_KEEP_SEQUENCE) {
+        xform ->Sequence = _cmsCompileProfileSequence(ContextID, nProfiles, hProfiles);
+    }
+    else
+        xform ->Sequence = NULL;
+
+    // If this is a cached transform, init first value, which is zero (16 bits only)
+    if (!(dwFlags & cmsFLAGS_NOCACHE)) {
+
+        memset(&xform ->Cache.CacheIn, 0, sizeof(xform ->Cache.CacheIn));
+
+        if (xform ->GamutCheck != NULL) {
+            TransformOnePixelWithGamutCheck(xform, xform ->Cache.CacheIn, xform->Cache.CacheOut);
+        }
+        else {
+
+            xform ->Lut ->Eval16Fn(xform ->Cache.CacheIn, xform->Cache.CacheOut, xform -> Lut->Data);
+        }
+
+    }
+
+    return (cmsHTRANSFORM) xform;
+}
+
+// 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)
+{
+    cmsUInt32Number i;
+    cmsBool BPC[256];
+    cmsUInt32Number Intents[256];
+    cmsFloat64Number AdaptationStates[256];
+
+    if (nProfiles <= 0 || nProfiles > 255) {
+         cmsSignalError(ContextID, cmsERROR_RANGE, "Wrong number of profiles. 1..255 expected, %d found.", nProfiles);
+        return NULL;
+    }
+
+    for (i=0; i < nProfiles; i++) {
+        BPC[i] = dwFlags & cmsFLAGS_BLACKPOINTCOMPENSATION ? TRUE : FALSE;
+        Intents[i] = Intent;
+        AdaptationStates[i] = cmsSetAdaptationStateTHR(ContextID, -1);
+    }
+
+
+    return cmsCreateExtendedTransform(ContextID, nProfiles, hProfiles, BPC, Intents, AdaptationStates, NULL, 0, InputFormat, OutputFormat, dwFlags);
+}
+
+
+
+cmsHTRANSFORM CMSEXPORT cmsCreateMultiprofileTransform(cmsHPROFILE hProfiles[],
+                                                  cmsUInt32Number nProfiles,
+                                                  cmsUInt32Number InputFormat,
+                                                  cmsUInt32Number OutputFormat,
+                                                  cmsUInt32Number Intent,
+                                                  cmsUInt32Number dwFlags)
+{
+
+    if (nProfiles <= 0 || nProfiles > 255) {
+         cmsSignalError(NULL, cmsERROR_RANGE, "Wrong number of profiles. 1..255 expected, %d found.", nProfiles);
+         return NULL;
+    }
+
+    return cmsCreateMultiprofileTransformTHR(cmsGetProfileContextID(hProfiles[0]),
+                                                  hProfiles,
+                                                  nProfiles,
+                                                  InputFormat,
+                                                  OutputFormat,
+                                                  Intent,
+                                                  dwFlags);
+}
+
+cmsHTRANSFORM CMSEXPORT cmsCreateTransformTHR(cmsContext ContextID,
+                                              cmsHPROFILE Input,
+                                              cmsUInt32Number InputFormat,
+                                              cmsHPROFILE Output,
+                                              cmsUInt32Number OutputFormat,
+                                              cmsUInt32Number Intent,
+                                              cmsUInt32Number dwFlags)
+{
+
+    cmsHPROFILE hArray[2];
+
+    hArray[0] = Input;
+    hArray[1] = Output;
+
+    return cmsCreateMultiprofileTransformTHR(ContextID, hArray, Output == NULL ? 1 : 2, InputFormat, OutputFormat, Intent, dwFlags);
+}
+
+CMSAPI cmsHTRANSFORM CMSEXPORT cmsCreateTransform(cmsHPROFILE Input,
+                                                  cmsUInt32Number InputFormat,
+                                                  cmsHPROFILE Output,
+                                                  cmsUInt32Number OutputFormat,
+                                                  cmsUInt32Number Intent,
+                                                  cmsUInt32Number dwFlags)
+{
+    return cmsCreateTransformTHR(cmsGetProfileContextID(Input), Input, InputFormat, Output, OutputFormat, Intent, dwFlags);
+}
+
+
+cmsHTRANSFORM CMSEXPORT cmsCreateProofingTransformTHR(cmsContext ContextID,
+                                                   cmsHPROFILE InputProfile,
+                                                   cmsUInt32Number InputFormat,
+                                                   cmsHPROFILE OutputProfile,
+                                                   cmsUInt32Number OutputFormat,
+                                                   cmsHPROFILE ProofingProfile,
+                                                   cmsUInt32Number nIntent,
+                                                   cmsUInt32Number ProofingIntent,
+                                                   cmsUInt32Number dwFlags)
+{
+    cmsHPROFILE hArray[4];
+    cmsUInt32Number Intents[4];
+    cmsBool  BPC[4];
+    cmsFloat64Number Adaptation[4];
+    cmsBool  DoBPC = (dwFlags & cmsFLAGS_BLACKPOINTCOMPENSATION) ? TRUE : FALSE;
+
+
+    hArray[0]  = InputProfile; hArray[1] = ProofingProfile; hArray[2]  = ProofingProfile;               hArray[3] = OutputProfile;
+    Intents[0] = nIntent;      Intents[1] = nIntent;        Intents[2] = INTENT_RELATIVE_COLORIMETRIC;  Intents[3] = ProofingIntent;
+    BPC[0]     = DoBPC;        BPC[1] = DoBPC;              BPC[2] = 0;                                 BPC[3] = 0;
+
+    Adaptation[0] = Adaptation[1] = Adaptation[2] = Adaptation[3] = cmsSetAdaptationStateTHR(ContextID, -1);
+
+    if (!(dwFlags & (cmsFLAGS_SOFTPROOFING|cmsFLAGS_GAMUTCHECK)))
+        return cmsCreateTransformTHR(ContextID, InputProfile, InputFormat, OutputProfile, OutputFormat, nIntent, dwFlags);
+
+    return cmsCreateExtendedTransform(ContextID, 4, hArray, BPC, Intents, Adaptation,
+                                        ProofingProfile, 1, InputFormat, OutputFormat, dwFlags);
+
+}
+
+
+cmsHTRANSFORM CMSEXPORT cmsCreateProofingTransform(cmsHPROFILE InputProfile,
+                                                   cmsUInt32Number InputFormat,
+                                                   cmsHPROFILE OutputProfile,
+                                                   cmsUInt32Number OutputFormat,
+                                                   cmsHPROFILE ProofingProfile,
+                                                   cmsUInt32Number nIntent,
+                                                   cmsUInt32Number ProofingIntent,
+                                                   cmsUInt32Number dwFlags)
+{
+    return cmsCreateProofingTransformTHR(cmsGetProfileContextID(InputProfile),
+                                                   InputProfile,
+                                                   InputFormat,
+                                                   OutputProfile,
+                                                   OutputFormat,
+                                                   ProofingProfile,
+                                                   nIntent,
+                                                   ProofingIntent,
+                                                   dwFlags);
+}
+
+
+// Grab the ContextID from an open transform. Returns NULL if a NULL transform is passed
+cmsContext CMSEXPORT cmsGetTransformContextID(cmsHTRANSFORM hTransform)
+{
+    _cmsTRANSFORM* xform = (_cmsTRANSFORM*) hTransform;
+
+    if (xform == NULL) return NULL;
+    return xform -> ContextID;
+}
+
+// Grab the input/output formats
+cmsUInt32Number CMSEXPORT cmsGetTransformInputFormat(cmsHTRANSFORM hTransform)
+{
+    _cmsTRANSFORM* xform = (_cmsTRANSFORM*) hTransform;
+
+    if (xform == NULL) return 0;
+    return xform->InputFormat;
+}
+
+cmsUInt32Number CMSEXPORT cmsGetTransformOutputFormat(cmsHTRANSFORM hTransform)
+{
+    _cmsTRANSFORM* xform = (_cmsTRANSFORM*) hTransform;
+
+    if (xform == NULL) return 0;
+    return xform->OutputFormat;
+}
+
+// For backwards compatibility
+cmsBool CMSEXPORT cmsChangeBuffersFormat(cmsHTRANSFORM hTransform,
+                                         cmsUInt32Number InputFormat,
+                                         cmsUInt32Number OutputFormat)
+{
+
+    _cmsTRANSFORM* xform = (_cmsTRANSFORM*) hTransform;
+    cmsFormatter16 FromInput, ToOutput;
+
+
+    // We only can afford to change formatters if previous transform is at least 16 bits
+    if (!(xform ->dwOriginalFlags & cmsFLAGS_CAN_CHANGE_FORMATTER)) {
+
+        cmsSignalError(xform ->ContextID, cmsERROR_NOT_SUITABLE, "cmsChangeBuffersFormat works only on transforms created originally with at least 16 bits of precision");
+        return FALSE;
+    }
+
+    FromInput = _cmsGetFormatter(xform->ContextID, InputFormat,  cmsFormatterInput, CMS_PACK_FLAGS_16BITS).Fmt16;
+    ToOutput  = _cmsGetFormatter(xform->ContextID, OutputFormat, cmsFormatterOutput, CMS_PACK_FLAGS_16BITS).Fmt16;
+
+    if (FromInput == NULL || ToOutput == NULL) {
+
+        cmsSignalError(xform -> ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unsupported raster format");
+        return FALSE;
+    }
+
+    xform ->InputFormat  = InputFormat;
+    xform ->OutputFormat = OutputFormat;
+    xform ->FromInput    = FromInput;
+    xform ->ToOutput     = ToOutput;
+    return TRUE;
+}