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|
//---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2020 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "lcms2_internal.h"
// 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 cmsCreateExtendedTransform(). Little CMS can handle incomplete adaptation states.
// The adaptation state may be defaulted by this function. If you don't like it, use the extended transform routine
cmsFloat64Number CMSEXPORT cmsSetAdaptationState(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;
}
// -----------------------------------------------------------------------
// 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 cmsSetAlarmCodes(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 cmsGetAlarmCodes(cmsContext ContextID, cmsUInt16Number AlarmCodesP[cmsMAXCHANNELS])
{
_cmsAlarmCodesChunkType* ContextAlarmCodes = (_cmsAlarmCodesChunkType*) _cmsContextGetClientChunk(ContextID, AlarmCodesContext);
_cmsAssert(ContextAlarmCodes != NULL); // Can't happen
memcpy(AlarmCodesP, ContextAlarmCodes->AlarmCodes, sizeof(ContextAlarmCodes->AlarmCodes));
}
// 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(cmsContext ContextID, cmsHTRANSFORM hTransform)
{
_cmsTRANSFORM* p = (_cmsTRANSFORM*) hTransform;
_cmsTRANSFORMCORE *core;
cmsUInt32Number refs;
if (p == NULL)
return;
core = p->core;
_cmsAssert(core != NULL);
refs = _cmsAdjustReferenceCount(&core->refs, -1);
_cmsFree(ContextID, (void *) p);
if (refs != 0)
return;
if (core->GamutCheck)
cmsPipelineFree(ContextID, core->GamutCheck);
if (core->Lut)
cmsPipelineFree(ContextID, core->Lut);
if (core->InputColorant)
cmsFreeNamedColorList(ContextID, core->InputColorant);
if (core->OutputColorant)
cmsFreeNamedColorList(ContextID, core->OutputColorant);
if (core->Sequence)
cmsFreeProfileSequenceDescription(ContextID, core->Sequence);
if (core->UserData)
core->FreeUserData(ContextID, core->UserData);
_cmsFree(ContextID, (void *)core);
}
static
cmsUInt32Number PixelSize(cmsUInt32Number Format)
{
cmsUInt32Number fmt_bytes = T_BYTES(Format);
// For double, the T_BYTES field is zero
if (fmt_bytes == 0)
return sizeof(cmsUInt64Number);
// Otherwise, it is already correct for all formats
return fmt_bytes;
}
// Apply transform.
void CMSEXPORT cmsDoTransform(cmsContext ContextID, cmsHTRANSFORM Transform,
const void* InputBuffer,
void* OutputBuffer,
cmsUInt32Number Size)
{
_cmsTRANSFORM* p = (_cmsTRANSFORM*) Transform;
cmsStride stride;
stride.BytesPerLineIn = 0; // Not used
stride.BytesPerLineOut = 0;
stride.BytesPerPlaneIn = Size * PixelSize(p->InputFormat);
stride.BytesPerPlaneOut = Size * PixelSize(p->OutputFormat);
p -> xform(ContextID, p, InputBuffer, OutputBuffer, Size, 1, &stride);
}
// This is a legacy stride for planar
void CMSEXPORT cmsDoTransformStride(cmsContext ContextID, cmsHTRANSFORM Transform,
const void* InputBuffer,
void* OutputBuffer,
cmsUInt32Number Size, cmsUInt32Number Stride)
{
_cmsTRANSFORM* p = (_cmsTRANSFORM*) Transform;
cmsStride stride;
stride.BytesPerLineIn = 0;
stride.BytesPerLineOut = 0;
stride.BytesPerPlaneIn = Stride;
stride.BytesPerPlaneOut = Stride;
p -> xform(ContextID, p, InputBuffer, OutputBuffer, Size, 1, &stride);
}
// This is the "fast" function for plugins
void CMSEXPORT cmsDoTransformLineStride(cmsContext ContextID, cmsHTRANSFORM Transform,
const void* InputBuffer,
void* OutputBuffer,
cmsUInt32Number PixelsPerLine,
cmsUInt32Number LineCount,
cmsUInt32Number BytesPerLineIn,
cmsUInt32Number BytesPerLineOut,
cmsUInt32Number BytesPerPlaneIn,
cmsUInt32Number BytesPerPlaneOut)
{
_cmsTRANSFORM* p = (_cmsTRANSFORM*) Transform;
cmsStride stride;
stride.BytesPerLineIn = BytesPerLineIn;
stride.BytesPerLineOut = BytesPerLineOut;
stride.BytesPerPlaneIn = BytesPerPlaneIn;
stride.BytesPerPlaneOut = BytesPerPlaneOut;
p->xform(ContextID, p, InputBuffer, OutputBuffer, PixelsPerLine, LineCount, &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(cmsContext ContextID, _cmsTRANSFORM* p,
const void* in,
void* out,
cmsUInt32Number PixelsPerLine,
cmsUInt32Number LineCount,
const cmsStride* Stride)
{
cmsUInt8Number* accum;
cmsUInt8Number* output;
cmsFloat32Number fIn[cmsMAXCHANNELS], fOut[cmsMAXCHANNELS];
cmsFloat32Number OutOfGamut;
cmsUInt32Number i, j, c, strideIn, strideOut;
_cmsTRANSFORMCORE *core = p->core;
_cmsHandleExtraChannels(ContextID, p, in, out, PixelsPerLine, LineCount, Stride);
strideIn = 0;
strideOut = 0;
memset(fIn, 0, sizeof(fIn));
memset(fOut, 0, sizeof(fOut));
for (i = 0; i < LineCount; i++) {
accum = (cmsUInt8Number*)in + strideIn;
output = (cmsUInt8Number*)out + strideOut;
for (j = 0; j < PixelsPerLine; j++) {
accum = p->FromInputFloat(ContextID, p, fIn, accum, Stride->BytesPerPlaneIn);
// Any gamut chack to do?
if (core->GamutCheck != NULL) {
// Evaluate gamut marker.
cmsPipelineEvalFloat(ContextID, fIn, &OutOfGamut, core->GamutCheck);
// Is current color out of gamut?
if (OutOfGamut > 0.0) {
// Certainly, out of gamut
for (c = 0; c < cmsMAXCHANNELS; c++)
fOut[c] = -1.0;
}
else {
// No, proceed normally
cmsPipelineEvalFloat(ContextID, fIn, fOut, core->Lut);
}
}
else {
// No gamut check at all
cmsPipelineEvalFloat(ContextID, fIn, fOut, core->Lut);
}
output = p->ToOutputFloat(ContextID, p, fOut, output, Stride->BytesPerPlaneOut);
}
strideIn += Stride->BytesPerLineIn;
strideOut += Stride->BytesPerLineOut;
}
}
static
void NullFloatXFORM(cmsContext ContextID, _cmsTRANSFORM* p,
const void* in,
void* out,
cmsUInt32Number PixelsPerLine,
cmsUInt32Number LineCount,
const cmsStride* Stride)
{
cmsUInt8Number* accum;
cmsUInt8Number* output;
cmsFloat32Number fIn[cmsMAXCHANNELS];
cmsUInt32Number i, j, strideIn, strideOut;
_cmsHandleExtraChannels(ContextID, p, in, out, PixelsPerLine, LineCount, Stride);
strideIn = 0;
strideOut = 0;
memset(fIn, 0, sizeof(fIn));
for (i = 0; i < LineCount; i++) {
accum = (cmsUInt8Number*) in + strideIn;
output = (cmsUInt8Number*) out + strideOut;
for (j = 0; j < PixelsPerLine; j++) {
accum = p->FromInputFloat(ContextID, p, fIn, accum, Stride ->BytesPerPlaneIn);
output = p->ToOutputFloat(ContextID, p, fIn, output, Stride->BytesPerPlaneOut);
}
strideIn += Stride->BytesPerLineIn;
strideOut += Stride->BytesPerLineOut;
}
}
// 16 bit precision -----------------------------------------------------------------------------------------------------------
// Null transformation, only applies formatters. No cache
static
void NullXFORM(cmsContext ContextID,
_cmsTRANSFORM* p,
const void* in,
void* out,
cmsUInt32Number PixelsPerLine,
cmsUInt32Number LineCount,
const cmsStride* Stride)
{
cmsUInt8Number* accum;
cmsUInt8Number* output;
cmsUInt16Number wIn[cmsMAXCHANNELS];
cmsUInt32Number i, j, strideIn, strideOut;
_cmsHandleExtraChannels(ContextID, p, in, out, PixelsPerLine, LineCount, Stride);
strideIn = 0;
strideOut = 0;
memset(wIn, 0, sizeof(wIn));
for (i = 0; i < LineCount; i++) {
accum = (cmsUInt8Number*)in + strideIn;
output = (cmsUInt8Number*)out + strideOut;
for (j = 0; j < PixelsPerLine; j++) {
accum = p->FromInput(ContextID, p, wIn, accum, Stride->BytesPerPlaneIn);
output = p->ToOutput(ContextID, p, wIn, output, Stride->BytesPerPlaneOut);
}
strideIn += Stride->BytesPerLineIn;
strideOut += Stride->BytesPerLineOut;
}
}
// No gamut check, no cache, 16 bits
#define FUNCTION_NAME PrecalculatedXFORM
#include "extra_xform.h"
// No gamut check, no cache, Identity transform, including pack/unpack
static
void PrecalculatedXFORMIdentity(cmsContext ContextID,
_cmsTRANSFORM* p,
const void* in,
void* out,
cmsUInt32Number PixelsPerLine,
cmsUInt32Number LineCount,
const cmsStride* Stride)
{
cmsUInt32Number bpli = Stride->BytesPerLineIn;
cmsUInt32Number bplo = Stride->BytesPerLineOut;
int bpp;
cmsUNUSED_PARAMETER(ContextID);
/* Silence some warnings */
(void)bpli;
(void)bplo;
if ((in == out && bpli == bplo) || PixelsPerLine == 0)
return;
bpp = T_BYTES(p->InputFormat);
if (bpp == 0)
bpp = sizeof(double);
bpp *= T_CHANNELS(p->InputFormat) + T_EXTRA(p->InputFormat);
PixelsPerLine *= bpp; /* Convert to BytesPerLine */
while (LineCount-- > 0)
{
memmove(out, in, PixelsPerLine);
in = (void *)((cmsUInt8Number *)in + bpli);
out = (void *)((cmsUInt8Number *)out + bplo);
}
}
static
void PrecalculatedXFORMIdentityPlanar(cmsContext ContextID,
_cmsTRANSFORM* p,
const void* in,
void* out,
cmsUInt32Number PixelsPerLine,
cmsUInt32Number LineCount,
const cmsStride* Stride)
{
cmsUInt32Number bpli = Stride->BytesPerLineIn;
cmsUInt32Number bplo = Stride->BytesPerLineOut;
cmsUInt32Number bppi = Stride->BytesPerPlaneIn;
cmsUInt32Number bppo = Stride->BytesPerPlaneOut;
int bpp;
int planes;
const void *plane_in;
void *plane_out;
cmsUNUSED_PARAMETER(ContextID);
/* Silence some warnings */
(void)bpli;
(void)bplo;
(void)bppi;
(void)bppo;
if ((in == out && bpli == bplo && bppi == bppo) || PixelsPerLine == 0)
return;
bpp = T_BYTES(p->InputFormat);
if (bpp == 0)
bpp = sizeof(double);
PixelsPerLine *= bpp; /* Convert to BytesPerLine */
planes = T_CHANNELS(p->InputFormat) + T_EXTRA(p->InputFormat);
while (planes-- > 0)
{
plane_in = in;
plane_out = out;
while (LineCount-- > 0)
{
memmove(plane_out, plane_in, PixelsPerLine);
plane_in = (void *)((cmsUInt8Number *)plane_in + bpli);
plane_out = (void *)((cmsUInt8Number *)plane_out + bplo);
}
in = (void *)((cmsUInt8Number *)in + bppi);
out = (void *)((cmsUInt8Number *)out + bppo);
}
}
// Auxiliary: Handle precalculated gamut check. The retrieval of context may be alittle bit slow, but this function is not critical.
static
void TransformOnePixelWithGamutCheck(cmsContext ContextID, _cmsTRANSFORM* p,
const cmsUInt16Number wIn[],
cmsUInt16Number wOut[])
{
cmsUInt16Number wOutOfGamut;
_cmsTRANSFORMCORE *core = p->core;
core->GamutCheck->Eval16Fn(ContextID, wIn, &wOutOfGamut, core->GamutCheck->Data);
if (wOutOfGamut >= 1) {
cmsUInt32Number i;
cmsUInt32Number n = core->Lut->OutputChannels;
_cmsAlarmCodesChunkType* ContextAlarmCodes = (_cmsAlarmCodesChunkType*) _cmsContextGetClientChunk(ContextID, AlarmCodesContext);
for (i=0; i < n; i++) {
wOut[i] = ContextAlarmCodes ->AlarmCodes[i];
}
}
else
core->Lut->Eval16Fn(ContextID, wIn, wOut, core->Lut->Data);
}
// Gamut check, No cache, 16 bits.
#define FUNCTION_NAME PrecalculatedXFORMGamutCheck
#define GAMUTCHECK
#include "extra_xform.h"
// No gamut check, Cache, 16 bits,
#define FUNCTION_NAME CachedXFORM
#define CACHED
#include "extra_xform.h"
// All those nice features together
#define FUNCTION_NAME CachedXFORMGamutCheck
#define CACHED
#define GAMUTCHECK
#include "extra_xform.h"
// No gamut check, Cache, 16 bits, <= 4 bytes
#define FUNCTION_NAME CachedXFORM4
#define CACHED
#define INBYTES 4
#define EXTRABYTES 0
#include "extra_xform.h"
// No gamut check, Cache, 16 bits, <= 8 bytes total
#define FUNCTION_NAME CachedXFORM8
#define CACHED
#define INBYTES 8
#define EXTRABYTES 0
#include "extra_xform.h"
// Special ones for common cases.
#define FUNCTION_NAME CachedXFORM1to1
#define CACHED
#define INBYTES 2
#define EXTRABYTES 0
#define UNPACK(CTX,T,D,S,Z) \
do { \
(D)[0] = FROM_8_TO_16(*(S)); (S)++; \
} while (0)
#define PACK(CTX,T,S,D,Z) \
do { \
*(D)++ = FROM_16_TO_8((S)[0]); \
} while (0)
#include "extra_xform.h"
#define FUNCTION_NAME CachedXFORM1x2to1x2
#define CACHED
#define INBYTES 2
#define EXTRABYTES 0
#define UNPACK(CTX,T,D,S,Z) \
do { \
(D)[0] = *(cmsUInt16Number *)(S); (S) += 2; \
} while (0)
#define PACK(CTX,T,S,D,Z) \
do { \
*(cmsUInt16Number *)(D) = (S)[0]; (D) += 2; \
} while (0)
#include "extra_xform.h"
#define FUNCTION_NAME CachedXFORM1to3
#define CACHED
#define INBYTES 2
#define EXTRABYTES 0
#define UNPACK(CTX,T,D,S,Z) \
do { \
(D)[0] = FROM_8_TO_16(*(S)); (S)++; \
} while (0)
#define PACK(CTX,T,S,D,Z) \
do { \
*(D)++ = FROM_16_TO_8((S)[0]); \
*(D)++ = FROM_16_TO_8((S)[1]); \
*(D)++ = FROM_16_TO_8((S)[2]); \
} while (0)
#include "extra_xform.h"
#define FUNCTION_NAME CachedXFORM1x2to3x2
#define CACHED
#define INBYTES 2
#define EXTRABYTES 0
#define UNPACK(CTX,T,D,S,Z) \
do { \
(D)[0] = *(cmsUInt16Number *)(S); (S) += 2; \
} while (0)
#define PACK(CTX,T,S,D,Z) \
do { \
*(cmsUInt16Number *)(D) = (S)[0]; (D) += 2; \
*(cmsUInt16Number *)(D) = (S)[1]; (D) += 2; \
*(cmsUInt16Number *)(D) = (S)[2]; (D) += 2; \
} while (0)
#include "extra_xform.h"
#define FUNCTION_NAME CachedXFORM1to4
#define CACHED
#define INBYTES 2
#define EXTRABYTES 0
#define UNPACK(CTX,T,D,S,Z) \
do { \
(D)[0] = FROM_8_TO_16(*(S)); (S)++; \
} while (0)
#define PACK(CTX,T,S,D,Z) \
do { \
*(D)++ = FROM_16_TO_8((S)[0]); \
*(D)++ = FROM_16_TO_8((S)[1]); \
*(D)++ = FROM_16_TO_8((S)[2]); \
*(D)++ = FROM_16_TO_8((S)[3]); \
} while (0)
#include "extra_xform.h"
#define FUNCTION_NAME CachedXFORM1x2to4x2
#define CACHED
#define INBYTES 2
#define EXTRABYTES 0
#define UNPACK(CTX,T,D,S,Z) \
do { \
(D)[0] = *(cmsUInt16Number *)(S); (S) += 2; \
} while (0)
#define PACK(CTX,T,S,D,Z) \
do { \
*(cmsUInt16Number *)(D) = (S)[0]; (D) += 2; \
*(cmsUInt16Number *)(D) = (S)[1]; (D) += 2; \
*(cmsUInt16Number *)(D) = (S)[2]; (D) += 2; \
*(cmsUInt16Number *)(D) = (S)[3]; (D) += 2; \
} while (0)
#include "extra_xform.h"
#define FUNCTION_NAME CachedXFORM3to1
#define CACHED
#define INBYTES 6
#define EXTRABYTES 0
#define UNPACK(CTX,T,D,S,Z) \
do { \
(D)[0] = FROM_8_TO_16(*(S)); (S)++; \
(D)[1] = FROM_8_TO_16(*(S)); (S)++; \
(D)[2] = FROM_8_TO_16(*(S)); (S)++; \
} while (0)
#define PACK(CTX,T,S,D,Z) \
do { \
*(D)++ = FROM_16_TO_8((S)[0]); \
} while (0)
#include "extra_xform.h"
#define FUNCTION_NAME CachedXFORM3x2to1x2
#define CACHED
#define INBYTES 6
#define EXTRABYTES 0
#define UNPACK(CTX,T,D,S,Z) \
do { \
(D)[0] = *(cmsUInt16Number *)(S); (S) += 2; \
(D)[1] = *(cmsUInt16Number *)(S); (S) += 2; \
(D)[2] = *(cmsUInt16Number *)(S); (S) += 2; \
} while (0)
#define PACK(CTX,T,S,D,Z) \
do { \
*(cmsUInt16Number *)(D) = (S)[0]; (D) += 2; \
} while (0)
#include "extra_xform.h"
#define FUNCTION_NAME CachedXFORM3to3
#define CACHED
#define INBYTES 6
#define EXTRABYTES 0
#define UNPACK(CTX,T,D,S,Z) \
do { \
(D)[0] = FROM_8_TO_16(*(S)); (S)++; \
(D)[1] = FROM_8_TO_16(*(S)); (S)++; \
(D)[2] = FROM_8_TO_16(*(S)); (S)++; \
} while (0)
#define PACK(CTX,T,S,D,Z) \
do { \
*(D)++ = FROM_16_TO_8((S)[0]); \
*(D)++ = FROM_16_TO_8((S)[1]); \
*(D)++ = FROM_16_TO_8((S)[2]); \
} while (0)
#include "extra_xform.h"
#define FUNCTION_NAME CachedXFORM3x2to3x2
#define CACHED
#define INBYTES 6
#define EXTRABYTES 0
#define UNPACK(CTX,T,D,S,Z) \
do { \
(D)[0] = *(cmsUInt16Number *)(S); (S) += 2; \
(D)[1] = *(cmsUInt16Number *)(S); (S) += 2; \
(D)[2] = *(cmsUInt16Number *)(S); (S) += 2; \
} while (0)
#define PACK(CTX,T,S,D,Z) \
do { \
*(cmsUInt16Number *)(D) = (S)[0]; (D) += 2; \
*(cmsUInt16Number *)(D) = (S)[1]; (D) += 2; \
*(cmsUInt16Number *)(D) = (S)[2]; (D) += 2; \
} while (0)
#include "extra_xform.h"
#define FUNCTION_NAME CachedXFORM3to4
#define CACHED
#define INBYTES 6
#define EXTRABYTES 0
#define UNPACK(CTX,T,D,S,Z) \
do { \
(D)[0] = FROM_8_TO_16(*(S)); (S)++; \
(D)[1] = FROM_8_TO_16(*(S)); (S)++; \
(D)[2] = FROM_8_TO_16(*(S)); (S)++; \
} while (0)
#define PACK(CTX,T,S,D,Z) \
do { \
*(D)++ = FROM_16_TO_8((S)[0]); \
*(D)++ = FROM_16_TO_8((S)[1]); \
*(D)++ = FROM_16_TO_8((S)[2]); \
*(D)++ = FROM_16_TO_8((S)[3]); \
} while (0)
#include "extra_xform.h"
#define FUNCTION_NAME CachedXFORM3x2to4x2
#define CACHED
#define INBYTES 6
#define EXTRABYTES 0
#define UNPACK(CTX,T,D,S,Z) \
do { \
(D)[0] = *(cmsUInt16Number *)(S); (S) += 2; \
(D)[1] = *(cmsUInt16Number *)(S); (S) += 2; \
(D)[2] = *(cmsUInt16Number *)(S); (S) += 2; \
} while (0)
#define PACK(CTX,T,S,D,Z) \
do { \
*(cmsUInt16Number *)(D) = (S)[0]; (D) += 2; \
*(cmsUInt16Number *)(D) = (S)[1]; (D) += 2; \
*(cmsUInt16Number *)(D) = (S)[2]; (D) += 2; \
*(cmsUInt16Number *)(D) = (S)[3]; (D) += 2; \
} while (0)
#include "extra_xform.h"
#define FUNCTION_NAME CachedXFORM4to1
#define CACHED
#define INBYTES 8
#define EXTRABYTES 0
#define UNPACK(CTX,T,D,S,Z) \
do { \
(D)[0] = FROM_8_TO_16(*(S)); (S)++; \
(D)[1] = FROM_8_TO_16(*(S)); (S)++; \
(D)[2] = FROM_8_TO_16(*(S)); (S)++; \
(D)[3] = FROM_8_TO_16(*(S)); (S)++; \
} while (0)
#define PACK(CTX,T,S,D,Z) \
do { \
*(D)++ = FROM_16_TO_8((S)[0]); \
} while (0)
#include "extra_xform.h"
#define FUNCTION_NAME CachedXFORM4x2to1x2
#define CACHED
#define INBYTES 8
#define EXTRABYTES 0
#define UNPACK(CTX,T,D,S,Z) \
do { \
(D)[0] = *(cmsUInt16Number *)(S); (S) += 2; \
(D)[1] = *(cmsUInt16Number *)(S); (S) += 2; \
(D)[2] = *(cmsUInt16Number *)(S); (S) += 2; \
(D)[3] = *(cmsUInt16Number *)(S); (S) += 2; \
} while (0)
#define PACK(CTX,T,S,D,Z) \
do { \
*(cmsUInt16Number *)(D) = (S)[0]; (D) += 2; \
} while (0)
#include "extra_xform.h"
#define FUNCTION_NAME CachedXFORM4to3
#define CACHED
#define INBYTES 8
#define EXTRABYTES 0
#define UNPACK(CTX,T,D,S,Z) \
do { \
(D)[0] = FROM_8_TO_16(*(S)); (S)++; \
(D)[1] = FROM_8_TO_16(*(S)); (S)++; \
(D)[2] = FROM_8_TO_16(*(S)); (S)++; \
(D)[3] = FROM_8_TO_16(*(S)); (S)++; \
} while (0)
#define PACK(CTX,T,S,D,Z) \
do { \
*(D)++ = FROM_16_TO_8((S)[0]); \
*(D)++ = FROM_16_TO_8((S)[1]); \
*(D)++ = FROM_16_TO_8((S)[2]); \
} while (0)
#include "extra_xform.h"
#define FUNCTION_NAME CachedXFORM4x2to3x2
#define CACHED
#define INBYTES 8
#define EXTRABYTES 0
#define UNPACK(CTX,T,D,S,Z) \
do { \
(D)[0] = *(cmsUInt16Number *)(S); (S) += 2; \
(D)[1] = *(cmsUInt16Number *)(S); (S) += 2; \
(D)[2] = *(cmsUInt16Number *)(S); (S) += 2; \
(D)[3] = *(cmsUInt16Number *)(S); (S) += 2; \
} while (0)
#define PACK(CTX,T,S,D,Z) \
do { \
*(cmsUInt16Number *)(D) = (S)[0]; (D) += 2; \
*(cmsUInt16Number *)(D) = (S)[1]; (D) += 2; \
*(cmsUInt16Number *)(D) = (S)[2]; (D) += 2; \
} while (0)
#include "extra_xform.h"
#define FUNCTION_NAME CachedXFORM4to4
#define CACHED
#define INBYTES 8
#define EXTRABYTES 0
#define UNPACK(CTX,T,D,S,Z) \
do { \
(D)[0] = FROM_8_TO_16(*(S)); (S)++; \
(D)[1] = FROM_8_TO_16(*(S)); (S)++; \
(D)[2] = FROM_8_TO_16(*(S)); (S)++; \
(D)[3] = FROM_8_TO_16(*(S)); (S)++; \
} while (0)
#define PACK(CTX,T,S,D,Z) \
do { \
*(D)++ = FROM_16_TO_8((S)[0]); \
*(D)++ = FROM_16_TO_8((S)[1]); \
*(D)++ = FROM_16_TO_8((S)[2]); \
*(D)++ = FROM_16_TO_8((S)[3]); \
} while (0)
#include "extra_xform.h"
#define FUNCTION_NAME CachedXFORM4x2to4x2
#define CACHED
#define INBYTES 8
#define EXTRABYTES 0
#define UNPACK(CTX,T,D,S,Z) \
do { \
(D)[0] = *(cmsUInt16Number *)(S); (S) += 2; \
(D)[1] = *(cmsUInt16Number *)(S); (S) += 2; \
(D)[2] = *(cmsUInt16Number *)(S); (S) += 2; \
(D)[3] = *(cmsUInt16Number *)(S); (S) += 2; \
} while (0)
#define PACK(CTX,T,S,D,Z) \
do { \
*(cmsUInt16Number *)(D) = (S)[0]; (D) += 2; \
*(cmsUInt16Number *)(D) = (S)[1]; (D) += 2; \
*(cmsUInt16Number *)(D) = (S)[2]; (D) += 2; \
*(cmsUInt16Number *)(D) = (S)[3]; (D) += 2; \
} while (0)
#include "extra_xform.h"
// Transform plug-ins ----------------------------------------------------------------------------------------------------
// List of used-defined transform factories
typedef struct _cmsTransformCollection_st {
_cmsTransform2Factory Factory;
cmsBool OldXform; // Factory returns xform function in the old style
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));
}
// Allocates memory for transform plugin factory
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));
}
}
// Adaptor for old versions of plug-in
static
void _cmsTransform2toTransformAdaptor(cmsContext ContextID, struct _cmstransform_struct *CMMcargo,
const void* InputBuffer,
void* OutputBuffer,
cmsUInt32Number PixelsPerLine,
cmsUInt32Number LineCount,
const cmsStride* Stride)
{
cmsUInt32Number i, strideIn, strideOut;
_cmsHandleExtraChannels(ContextID, CMMcargo, InputBuffer, OutputBuffer, PixelsPerLine, LineCount, Stride);
strideIn = 0;
strideOut = 0;
for (i = 0; i < LineCount; i++) {
void *accum = (cmsUInt8Number*)InputBuffer + strideIn;
void *output = (cmsUInt8Number*)OutputBuffer + strideOut;
CMMcargo->OldXform(ContextID, CMMcargo, accum, output, PixelsPerLine, Stride->BytesPerPlaneIn);
strideIn += Stride->BytesPerLineIn;
strideOut += Stride->BytesPerLineOut;
}
}
// 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->factories.xform == NULL) return FALSE;
fl = (_cmsTransformCollection*) _cmsPluginMalloc(ContextID, sizeof(_cmsTransformCollection));
if (fl == NULL) return FALSE;
// Check for full xform plug-ins previous to 2.8, we would need an adapter in that case
if (Plugin->base.ExpectedVersion < 2080-2000) {
fl->OldXform = TRUE;
}
else
fl->OldXform = FALSE;
// Copy the parameters
fl->Factory = Plugin->factories.xform;
// 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->core != NULL);
CMMcargo->core->UserData = ptr;
CMMcargo->core->FreeUserData = FreePrivateDataFn;
}
// returns the pointer defined by the plug-in to store private data
void * CMSEXPORT _cmsGetTransformUserData(struct _cmstransform_struct *CMMcargo)
{
_cmsAssert(CMMcargo != NULL && CMMcargo->core != NULL);
return CMMcargo->core->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;
}
// returns original flags
cmsUInt32Number CMSEXPORT _cmsGetTransformFlags(struct _cmstransform_struct* CMMcargo)
{
_cmsAssert(CMMcargo != NULL);
return CMMcargo->core->dwOriginalFlags;
}
void
_cmsFindFormatter(_cmsTRANSFORM* p, cmsUInt32Number InputFormat, cmsUInt32Number OutputFormat, cmsUInt32Number dwFlags)
{
if (dwFlags & cmsFLAGS_NULLTRANSFORM) {
p ->xform = NullXFORM;
return;
}
if (dwFlags & cmsFLAGS_NOCACHE) {
if (dwFlags & cmsFLAGS_GAMUTCHECK)
p ->xform = PrecalculatedXFORMGamutCheck; // Gamut check, no cache
else if ((InputFormat & ~COLORSPACE_SH(31)) == (OutputFormat & ~COLORSPACE_SH(31)) &&
_cmsLutIsIdentity(p->core->Lut)) {
if (T_PLANAR(InputFormat))
p ->xform = PrecalculatedXFORMIdentityPlanar;
else
p ->xform = PrecalculatedXFORMIdentity;
} else
p ->xform = PrecalculatedXFORM; // No cache, no gamut check
return;
}
if (dwFlags & cmsFLAGS_GAMUTCHECK) {
p ->xform = CachedXFORMGamutCheck; // Gamut check, cache
return;
}
if ((InputFormat & ~COLORSPACE_SH(31)) == (OutputFormat & ~COLORSPACE_SH(31)) &&
_cmsLutIsIdentity(p->core->Lut)) {
/* No point in a cache here! */
if (T_PLANAR(InputFormat))
p ->xform = PrecalculatedXFORMIdentityPlanar;
else
p ->xform = PrecalculatedXFORMIdentity;
return;
}
if (T_EXTRA(InputFormat) != 0) {
p ->xform = CachedXFORM; // No gamut check, cache
return;
}
if ((InputFormat & ~(COLORSPACE_SH(31)|CHANNELS_SH(7)|BYTES_SH(3))) == 0 &&
(OutputFormat & ~(COLORSPACE_SH(31)|CHANNELS_SH(7)|BYTES_SH(3))) == 0) {
switch ((InputFormat & (CHANNELS_SH(7)|BYTES_SH(3)))|
((OutputFormat & (CHANNELS_SH(7)|BYTES_SH(3)))<<6)) {
case CHANNELS_SH(1) | BYTES_SH(1) | ((CHANNELS_SH(1) | BYTES_SH(1))<<6):
p->xform = CachedXFORM1to1;
return;
case CHANNELS_SH(1) | BYTES_SH(2) | ((CHANNELS_SH(1) | BYTES_SH(2))<<6):
p->xform = CachedXFORM1x2to1x2;
return;
case CHANNELS_SH(1) | BYTES_SH(1) | ((CHANNELS_SH(3) | BYTES_SH(1))<<6):
p->xform = CachedXFORM1to3;
return;
case CHANNELS_SH(1) | BYTES_SH(2) | ((CHANNELS_SH(3) | BYTES_SH(2))<<6):
p->xform = CachedXFORM1x2to3x2;
return;
case CHANNELS_SH(1) | BYTES_SH(1) | ((CHANNELS_SH(4) | BYTES_SH(1))<<6):
p->xform = CachedXFORM1to4;
return;
case CHANNELS_SH(1) | BYTES_SH(2) | ((CHANNELS_SH(4) | BYTES_SH(2))<<6):
p->xform = CachedXFORM1x2to4x2;
return;
case CHANNELS_SH(3) | BYTES_SH(1) | ((CHANNELS_SH(1) | BYTES_SH(1))<<6):
p ->xform = CachedXFORM3to1;
return;
case CHANNELS_SH(3) | BYTES_SH(2) | ((CHANNELS_SH(1) | BYTES_SH(2))<<6):
p ->xform = CachedXFORM3x2to1x2;
return;
case CHANNELS_SH(3) | BYTES_SH(1) | ((CHANNELS_SH(3) | BYTES_SH(1))<<6):
p->xform = CachedXFORM3to3;
return;
case CHANNELS_SH(3) | BYTES_SH(2) | ((CHANNELS_SH(3) | BYTES_SH(2))<<6):
p->xform = CachedXFORM3x2to3x2;
return;
case CHANNELS_SH(3) | BYTES_SH(1) | ((CHANNELS_SH(4) | BYTES_SH(1))<<6):
p->xform = CachedXFORM3to4;
return;
case CHANNELS_SH(3) | BYTES_SH(2) | ((CHANNELS_SH(4) | BYTES_SH(2))<<6):
p->xform = CachedXFORM3x2to4x2;
return;
case CHANNELS_SH(4) | BYTES_SH(1) | ((CHANNELS_SH(1) | BYTES_SH(1))<<6):
p->xform = CachedXFORM4to1;
return;
case CHANNELS_SH(4) | BYTES_SH(2) | ((CHANNELS_SH(1) | BYTES_SH(2))<<6):
p->xform = CachedXFORM4x2to1x2;
return;
case CHANNELS_SH(4) | BYTES_SH(1) | ((CHANNELS_SH(3) | BYTES_SH(1))<<6):
p->xform = CachedXFORM4to3;
return;
case CHANNELS_SH(4) | BYTES_SH(2) | ((CHANNELS_SH(3) | BYTES_SH(2))<<6):
p->xform = CachedXFORM4x2to3x2;
return;
case CHANNELS_SH(4) | BYTES_SH(1) | ((CHANNELS_SH(4) | BYTES_SH(1))<<6):
p->xform = CachedXFORM4to4;
return;
case CHANNELS_SH(4) | BYTES_SH(2) | ((CHANNELS_SH(4) | BYTES_SH(2))<<6):
p->xform = CachedXFORM4x2to4x2;
return;
}
}
{
int inwords = T_CHANNELS(InputFormat);
if (inwords <= 2)
p ->xform = CachedXFORM4;
else if (inwords <= 4)
p ->xform = CachedXFORM8;
else
p ->xform = CachedXFORM; // No gamut check, cache
}
}
// 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;
_cmsTRANSFORMCORE *core;
// Allocate needed memory
_cmsTRANSFORM* p = (_cmsTRANSFORM*)_cmsMallocZero(ContextID, sizeof(_cmsTRANSFORM));
if (!p) {
cmsPipelineFree(ContextID, lut);
return NULL;
}
core = (_cmsTRANSFORMCORE*)_cmsMallocZero(ContextID, sizeof(*core));
if (!core) {
_cmsFree(ContextID, p);
cmsPipelineFree(ContextID, lut);
return NULL;
}
p->core = core;
core->refs = 1;
// Store the proposed pipeline
p->core->Lut = lut;
// Let's see if any plug-in want to do the transform by itself
if (core->Lut != NULL) {
if (!(*dwFlags & cmsFLAGS_NOOPTIMIZE)) {
for (Plugin = ctx->TransformCollection;
Plugin != NULL;
Plugin = Plugin->Next) {
if (Plugin->Factory(ContextID, &p->xform, &core->UserData, &core->FreeUserData, &core->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->InputFormat = *InputFormat;
p->OutputFormat = *OutputFormat;
core->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;
// Save the day? (Ignore the warning)
if (Plugin->OldXform) {
p->OldXform = (_cmsTransformFn)(void*) p->xform;
p->xform = _cmsTransform2toTransformAdaptor;
}
return p;
}
}
}
// Not suitable for the transform plug-in, let's check the pipeline plug-in
_cmsOptimizePipeline(ContextID, &core->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");
cmsDeleteTransform(ContextID, p);
return NULL;
}
if (*dwFlags & cmsFLAGS_NULLTRANSFORM) {
p ->xform = NullFloatXFORM;
}
else {
// Float transforms don't use cache, always are non-NULL
p ->xform = FloatXFORM;
}
}
else {
if (*InputFormat == 0 && *OutputFormat == 0) {
p ->FromInput = p ->ToOutput = NULL;
*dwFlags |= cmsFLAGS_CAN_CHANGE_FORMATTER;
}
else {
cmsUInt32Number 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");
cmsDeleteTransform(ContextID, p);
return NULL;
}
BytesPerPixelInput = T_BYTES(p ->InputFormat);
if (BytesPerPixelInput == 0 || BytesPerPixelInput >= 2)
*dwFlags |= cmsFLAGS_CAN_CHANGE_FORMATTER;
}
_cmsFindFormatter(p, *InputFormat, *OutputFormat, *dwFlags);
}
p ->InputFormat = *InputFormat;
p ->OutputFormat = *OutputFormat;
core->dwOriginalFlags = *dwFlags;
core->UserData = NULL;
return p;
}
static
cmsBool GetXFormColorSpaces(cmsContext ContextID, cmsUInt32Number nProfiles, cmsHPROFILE hProfiles[], cmsColorSpaceSignature* Input, cmsColorSpaceSignature* Output)
{
cmsColorSpaceSignature ColorSpaceIn, ColorSpaceOut;
cmsColorSpaceSignature PostColorSpace;
cmsUInt32Number i;
if (nProfiles == 0) return FALSE;
if (hProfiles[0] == NULL) return FALSE;
*Input = PostColorSpace = cmsGetColorSpace(ContextID, 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(ContextID, hProfile);
if (cls == cmsSigNamedColorClass) {
ColorSpaceIn = cmsSig1colorData;
ColorSpaceOut = (nProfiles > 1) ? cmsGetPCS(ContextID, hProfile) : cmsGetColorSpace(ContextID, hProfile);
}
else
if (lIsInput || (cls == cmsSigLinkClass)) {
ColorSpaceIn = cmsGetColorSpace(ContextID, hProfile);
ColorSpaceOut = cmsGetPCS(ContextID, hProfile);
}
else
{
ColorSpaceIn = cmsGetPCS(ContextID, hProfile);
ColorSpaceOut = cmsGetColorSpace(ContextID, hProfile);
}
if (i==0)
*Input = ColorSpaceIn;
PostColorSpace = ColorSpaceOut;
}
*Output = PostColorSpace;
return TRUE;
}
// Check colorspace
static
cmsBool IsProperColorSpace(cmsContext ContextID, cmsColorSpaceSignature Check, cmsUInt32Number dwFormat)
{
int Space1 = (int) T_COLORSPACE(dwFormat);
int Space2 = _cmsLCMScolorSpace(ContextID, 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;
}
// ----------------------------------------------------------------------------------------------------------------
// 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)
{
while (Dest -> X > 2. &&
Dest -> Y > 2. &&
Dest -> Z > 2.) {
Dest -> X /= 10.;
Dest -> Y /= 10.;
Dest -> Z /= 10.;
}
}
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;
NormalizeXYZ(wtPt);
}
}
// 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(ContextID, nProfiles, hProfiles, &EntryColorSpace, &ExitColorSpace)) {
cmsSignalError(ContextID, cmsERROR_NULL, "NULL input profiles on transform");
return NULL;
}
// Check if proper colorspaces
if (!IsProperColorSpace(ContextID, EntryColorSpace, InputFormat)) {
cmsSignalError(ContextID, cmsERROR_COLORSPACE_CHECK, "Wrong input color space on transform");
return NULL;
}
if (!IsProperColorSpace(ContextID, 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(ContextID, EntryColorSpace) != cmsPipelineInputChannels(ContextID, Lut)) ||
(cmsChannelsOf(ContextID, ExitColorSpace) != cmsPipelineOutputChannels(ContextID, Lut))) {
cmsPipelineFree(ContextID, 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->core->EntryColorSpace = EntryColorSpace;
xform->core->ExitColorSpace = ExitColorSpace;
xform->core->RenderingIntent = Intents[nProfiles-1];
// Take white points
SetWhitePoint(&xform->core->EntryWhitePoint, (cmsCIEXYZ*) cmsReadTag(ContextID, hProfiles[0], cmsSigMediaWhitePointTag));
SetWhitePoint(&xform->core->ExitWhitePoint, (cmsCIEXYZ*) cmsReadTag(ContextID, hProfiles[nProfiles-1], cmsSigMediaWhitePointTag));
// Create a gamut check LUT if requested
if (hGamutProfile != NULL && (dwFlags & cmsFLAGS_GAMUTCHECK))
xform->core->GamutCheck = _cmsCreateGamutCheckPipeline(ContextID, hProfiles,
BPC, Intents,
AdaptationStates,
nGamutPCSposition,
hGamutProfile);
// Try to read input and output colorant table
if (cmsIsTag(ContextID, hProfiles[0], cmsSigColorantTableTag)) {
// Input table can only come in this way.
xform->core->InputColorant = cmsDupNamedColorList(ContextID, (cmsNAMEDCOLORLIST*) cmsReadTag(ContextID, hProfiles[0], cmsSigColorantTableTag));
}
// Output is a little bit more complex.
if (cmsGetDeviceClass(ContextID, hProfiles[nProfiles-1]) == cmsSigLinkClass) {
// This tag may exist only on devicelink profiles.
if (cmsIsTag(ContextID, hProfiles[nProfiles-1], cmsSigColorantTableOutTag)) {
// It may be NULL if error
xform->core->OutputColorant = cmsDupNamedColorList(ContextID, (cmsNAMEDCOLORLIST*) cmsReadTag(ContextID, hProfiles[nProfiles-1], cmsSigColorantTableOutTag));
}
} else {
if (cmsIsTag(ContextID, hProfiles[nProfiles-1], cmsSigColorantTableTag)) {
xform->core->OutputColorant = cmsDupNamedColorList(ContextID, (cmsNAMEDCOLORLIST*) cmsReadTag(ContextID, hProfiles[nProfiles-1], cmsSigColorantTableTag));
}
}
// Store the sequence of profiles
if (dwFlags & cmsFLAGS_KEEP_SEQUENCE) {
xform->core->Sequence = _cmsCompileProfileSequence(ContextID, nProfiles, hProfiles);
}
else
xform->core->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->core->GamutCheck != NULL) {
TransformOnePixelWithGamutCheck(ContextID, xform, xform->Cache.CacheIn, xform->Cache.CacheOut);
}
else {
xform->core->Lut->Eval16Fn(ContextID, xform ->Cache.CacheIn, xform->Cache.CacheOut, xform->core->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 cmsCreateMultiprofileTransform(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] = cmsSetAdaptationState(ContextID, -1);
}
return cmsCreateExtendedTransform(ContextID, nProfiles, hProfiles, BPC, Intents, AdaptationStates, NULL, 0, InputFormat, OutputFormat, dwFlags);
}
cmsHTRANSFORM CMSEXPORT cmsCreateTransform(cmsContext ContextID,
cmsHPROFILE Input,
cmsUInt32Number InputFormat,
cmsHPROFILE Output,
cmsUInt32Number OutputFormat,
cmsUInt32Number Intent,
cmsUInt32Number dwFlags)
{
cmsHPROFILE hArray[2];
hArray[0] = Input;
hArray[1] = Output;
return cmsCreateMultiprofileTransform(ContextID, hArray, Output == NULL ? 1U : 2U, InputFormat, OutputFormat, Intent, dwFlags);
}
cmsHTRANSFORM CMSEXPORT cmsCreateProofingTransform(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] = cmsSetAdaptationState(ContextID, -1);
if (!(dwFlags & (cmsFLAGS_SOFTPROOFING|cmsFLAGS_GAMUTCHECK)))
return cmsCreateTransform(ContextID, InputProfile, InputFormat, OutputProfile, OutputFormat, nIntent, dwFlags);
return cmsCreateExtendedTransform(ContextID, 4, hArray, BPC, Intents, Adaptation,
ProofingProfile, 1, InputFormat, OutputFormat, dwFlags);
}
// Grab the input/output formats
cmsUInt32Number CMSEXPORT cmsGetTransformInputFormat(cmsContext ContextID, cmsHTRANSFORM hTransform)
{
_cmsTRANSFORM* xform = (_cmsTRANSFORM*) hTransform;
cmsUNUSED_PARAMETER(ContextID);
if (xform == NULL) return 0;
return xform->InputFormat;
}
cmsUInt32Number CMSEXPORT cmsGetTransformOutputFormat(cmsContext ContextID, cmsHTRANSFORM hTransform)
{
_cmsTRANSFORM* xform = (_cmsTRANSFORM*) hTransform;
cmsUNUSED_PARAMETER(ContextID);
if (xform == NULL) return 0;
return xform->OutputFormat;
}
cmsHTRANSFORM cmsCloneTransformChangingFormats(cmsContext ContextID,
const cmsHTRANSFORM hTransform,
cmsUInt32Number InputFormat,
cmsUInt32Number OutputFormat)
{
const _cmsTRANSFORM *oldXform = (const _cmsTRANSFORM *)hTransform;
_cmsTRANSFORM *xform;
cmsFormatter16 FromInput, ToOutput;
_cmsAssert(oldXform != NULL && oldXform->core != NULL);
// We only can afford to change formatters if previous transform is at least 16 bits
if (!(oldXform->core->dwOriginalFlags & cmsFLAGS_CAN_CHANGE_FORMATTER)) {
cmsSignalError(ContextID, cmsERROR_NOT_SUITABLE, "cmsCloneTransformChangingFormats works only on transforms created originally with at least 16 bits of precision");
return NULL;
}
xform = _cmsMalloc(ContextID, sizeof(*xform));
if (xform == NULL)
return NULL;
memcpy(xform, oldXform, sizeof(*xform));
FromInput = _cmsGetFormatter(ContextID, InputFormat, cmsFormatterInput, CMS_PACK_FLAGS_16BITS).Fmt16;
ToOutput = _cmsGetFormatter(ContextID, OutputFormat, cmsFormatterOutput, CMS_PACK_FLAGS_16BITS).Fmt16;
if (FromInput == NULL || ToOutput == NULL) {
cmsSignalError(ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unsupported raster format");
return NULL;
}
xform ->InputFormat = InputFormat;
xform ->OutputFormat = OutputFormat;
xform ->FromInput = FromInput;
xform ->ToOutput = ToOutput;
_cmsFindFormatter(xform, InputFormat, OutputFormat, xform->core->dwOriginalFlags);
(void)_cmsAdjustReferenceCount(&xform->core->refs, 1);
return xform;
}
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