--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.desktop/share/native/liblcms/cmscnvrt.c Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,1190 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+// This file is available under and governed by the GNU General Public
+// License version 2 only, as published by the Free Software Foundation.
+// However, the following notice accompanied the original version of this
+// file:
+//
+//---------------------------------------------------------------------------------
+//
+// Little Color Management System
+// Copyright (c) 1998-2016 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"
+
+
+// Link several profiles to obtain a single LUT modelling the whole color transform. Intents, Black point
+// compensation and Adaptation parameters may vary across profiles. BPC and Adaptation refers to the PCS
+// after the profile. I.e, BPC[0] refers to connexion between profile(0) and profile(1)
+cmsPipeline* _cmsLinkProfiles(cmsContext ContextID,
+ cmsUInt32Number nProfiles,
+ cmsUInt32Number Intents[],
+ cmsHPROFILE hProfiles[],
+ cmsBool BPC[],
+ cmsFloat64Number AdaptationStates[],
+ cmsUInt32Number dwFlags);
+
+//---------------------------------------------------------------------------------
+
+// This is the default routine for ICC-style intents. A user may decide to override it by using a plugin.
+// Supported intents are perceptual, relative colorimetric, saturation and ICC-absolute colorimetric
+static
+cmsPipeline* DefaultICCintents(cmsContext ContextID,
+ cmsUInt32Number nProfiles,
+ cmsUInt32Number Intents[],
+ cmsHPROFILE hProfiles[],
+ cmsBool BPC[],
+ cmsFloat64Number AdaptationStates[],
+ cmsUInt32Number dwFlags);
+
+//---------------------------------------------------------------------------------
+
+// This is the entry for black-preserving K-only intents, which are non-ICC. Last profile have to be a output profile
+// to do the trick (no devicelinks allowed at that position)
+static
+cmsPipeline* BlackPreservingKOnlyIntents(cmsContext ContextID,
+ cmsUInt32Number nProfiles,
+ cmsUInt32Number Intents[],
+ cmsHPROFILE hProfiles[],
+ cmsBool BPC[],
+ cmsFloat64Number AdaptationStates[],
+ cmsUInt32Number dwFlags);
+
+//---------------------------------------------------------------------------------
+
+// This is the entry for black-plane preserving, which are non-ICC. Again, Last profile have to be a output profile
+// to do the trick (no devicelinks allowed at that position)
+static
+cmsPipeline* BlackPreservingKPlaneIntents(cmsContext ContextID,
+ cmsUInt32Number nProfiles,
+ cmsUInt32Number Intents[],
+ cmsHPROFILE hProfiles[],
+ cmsBool BPC[],
+ cmsFloat64Number AdaptationStates[],
+ cmsUInt32Number dwFlags);
+
+//---------------------------------------------------------------------------------
+
+
+// This is a structure holding implementations for all supported intents.
+typedef struct _cms_intents_list {
+
+ cmsUInt32Number Intent;
+ char Description[256];
+ cmsIntentFn Link;
+ struct _cms_intents_list* Next;
+
+} cmsIntentsList;
+
+
+// Built-in intents
+static cmsIntentsList DefaultIntents[] = {
+
+ { INTENT_PERCEPTUAL, "Perceptual", DefaultICCintents, &DefaultIntents[1] },
+ { INTENT_RELATIVE_COLORIMETRIC, "Relative colorimetric", DefaultICCintents, &DefaultIntents[2] },
+ { INTENT_SATURATION, "Saturation", DefaultICCintents, &DefaultIntents[3] },
+ { INTENT_ABSOLUTE_COLORIMETRIC, "Absolute colorimetric", DefaultICCintents, &DefaultIntents[4] },
+ { INTENT_PRESERVE_K_ONLY_PERCEPTUAL, "Perceptual preserving black ink", BlackPreservingKOnlyIntents, &DefaultIntents[5] },
+ { INTENT_PRESERVE_K_ONLY_RELATIVE_COLORIMETRIC, "Relative colorimetric preserving black ink", BlackPreservingKOnlyIntents, &DefaultIntents[6] },
+ { INTENT_PRESERVE_K_ONLY_SATURATION, "Saturation preserving black ink", BlackPreservingKOnlyIntents, &DefaultIntents[7] },
+ { INTENT_PRESERVE_K_PLANE_PERCEPTUAL, "Perceptual preserving black plane", BlackPreservingKPlaneIntents, &DefaultIntents[8] },
+ { INTENT_PRESERVE_K_PLANE_RELATIVE_COLORIMETRIC,"Relative colorimetric preserving black plane", BlackPreservingKPlaneIntents, &DefaultIntents[9] },
+ { INTENT_PRESERVE_K_PLANE_SATURATION, "Saturation preserving black plane", BlackPreservingKPlaneIntents, NULL }
+};
+
+
+// A pointer to the beginning of the list
+_cmsIntentsPluginChunkType _cmsIntentsPluginChunk = { NULL };
+
+// Duplicates the zone of memory used by the plug-in in the new context
+static
+void DupPluginIntentsList(struct _cmsContext_struct* ctx,
+ const struct _cmsContext_struct* src)
+{
+ _cmsIntentsPluginChunkType newHead = { NULL };
+ cmsIntentsList* entry;
+ cmsIntentsList* Anterior = NULL;
+ _cmsIntentsPluginChunkType* head = (_cmsIntentsPluginChunkType*) src->chunks[IntentPlugin];
+
+ // Walk the list copying all nodes
+ for (entry = head->Intents;
+ entry != NULL;
+ entry = entry ->Next) {
+
+ cmsIntentsList *newEntry = ( cmsIntentsList *) _cmsSubAllocDup(ctx ->MemPool, entry, sizeof(cmsIntentsList));
+
+ 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.Intents == NULL)
+ newHead.Intents = newEntry;
+ }
+
+ ctx ->chunks[IntentPlugin] = _cmsSubAllocDup(ctx->MemPool, &newHead, sizeof(_cmsIntentsPluginChunkType));
+}
+
+void _cmsAllocIntentsPluginChunk(struct _cmsContext_struct* ctx,
+ const struct _cmsContext_struct* src)
+{
+ if (src != NULL) {
+
+ // Copy all linked list
+ DupPluginIntentsList(ctx, src);
+ }
+ else {
+ static _cmsIntentsPluginChunkType IntentsPluginChunkType = { NULL };
+ ctx ->chunks[IntentPlugin] = _cmsSubAllocDup(ctx ->MemPool, &IntentsPluginChunkType, sizeof(_cmsIntentsPluginChunkType));
+ }
+}
+
+
+// Search the list for a suitable intent. Returns NULL if not found
+static
+cmsIntentsList* SearchIntent(cmsContext ContextID, cmsUInt32Number Intent)
+{
+ _cmsIntentsPluginChunkType* ctx = ( _cmsIntentsPluginChunkType*) _cmsContextGetClientChunk(ContextID, IntentPlugin);
+ cmsIntentsList* pt;
+
+ for (pt = ctx -> Intents; pt != NULL; pt = pt -> Next)
+ if (pt ->Intent == Intent) return pt;
+
+ for (pt = DefaultIntents; pt != NULL; pt = pt -> Next)
+ if (pt ->Intent == Intent) return pt;
+
+ return NULL;
+}
+
+// Black point compensation. Implemented as a linear scaling in XYZ. Black points
+// should come relative to the white point. Fills an matrix/offset element m
+// which is organized as a 4x4 matrix.
+static
+void ComputeBlackPointCompensation(const cmsCIEXYZ* BlackPointIn,
+ const cmsCIEXYZ* BlackPointOut,
+ cmsMAT3* m, cmsVEC3* off)
+{
+ cmsFloat64Number ax, ay, az, bx, by, bz, tx, ty, tz;
+
+ // Now we need to compute a matrix plus an offset m and of such of
+ // [m]*bpin + off = bpout
+ // [m]*D50 + off = D50
+ //
+ // This is a linear scaling in the form ax+b, where
+ // a = (bpout - D50) / (bpin - D50)
+ // b = - D50* (bpout - bpin) / (bpin - D50)
+
+ tx = BlackPointIn->X - cmsD50_XYZ()->X;
+ ty = BlackPointIn->Y - cmsD50_XYZ()->Y;
+ tz = BlackPointIn->Z - cmsD50_XYZ()->Z;
+
+ ax = (BlackPointOut->X - cmsD50_XYZ()->X) / tx;
+ ay = (BlackPointOut->Y - cmsD50_XYZ()->Y) / ty;
+ az = (BlackPointOut->Z - cmsD50_XYZ()->Z) / tz;
+
+ bx = - cmsD50_XYZ()-> X * (BlackPointOut->X - BlackPointIn->X) / tx;
+ by = - cmsD50_XYZ()-> Y * (BlackPointOut->Y - BlackPointIn->Y) / ty;
+ bz = - cmsD50_XYZ()-> Z * (BlackPointOut->Z - BlackPointIn->Z) / tz;
+
+ _cmsVEC3init(&m ->v[0], ax, 0, 0);
+ _cmsVEC3init(&m ->v[1], 0, ay, 0);
+ _cmsVEC3init(&m ->v[2], 0, 0, az);
+ _cmsVEC3init(off, bx, by, bz);
+
+}
+
+
+// Approximate a blackbody illuminant based on CHAD information
+static
+cmsFloat64Number CHAD2Temp(const cmsMAT3* Chad)
+{
+ // Convert D50 across inverse CHAD to get the absolute white point
+ cmsVEC3 d, s;
+ cmsCIEXYZ Dest;
+ cmsCIExyY DestChromaticity;
+ cmsFloat64Number TempK;
+ cmsMAT3 m1, m2;
+
+ m1 = *Chad;
+ if (!_cmsMAT3inverse(&m1, &m2)) return FALSE;
+
+ s.n[VX] = cmsD50_XYZ() -> X;
+ s.n[VY] = cmsD50_XYZ() -> Y;
+ s.n[VZ] = cmsD50_XYZ() -> Z;
+
+ _cmsMAT3eval(&d, &m2, &s);
+
+ Dest.X = d.n[VX];
+ Dest.Y = d.n[VY];
+ Dest.Z = d.n[VZ];
+
+ cmsXYZ2xyY(&DestChromaticity, &Dest);
+
+ if (!cmsTempFromWhitePoint(&TempK, &DestChromaticity))
+ return -1.0;
+
+ return TempK;
+}
+
+// Compute a CHAD based on a given temperature
+static
+ void Temp2CHAD(cmsMAT3* Chad, cmsFloat64Number Temp)
+{
+ cmsCIEXYZ White;
+ cmsCIExyY ChromaticityOfWhite;
+
+ cmsWhitePointFromTemp(&ChromaticityOfWhite, Temp);
+ cmsxyY2XYZ(&White, &ChromaticityOfWhite);
+ _cmsAdaptationMatrix(Chad, NULL, &White, cmsD50_XYZ());
+}
+
+// Join scalings to obtain relative input to absolute and then to relative output.
+// Result is stored in a 3x3 matrix
+static
+cmsBool ComputeAbsoluteIntent(cmsFloat64Number AdaptationState,
+ const cmsCIEXYZ* WhitePointIn,
+ const cmsMAT3* ChromaticAdaptationMatrixIn,
+ const cmsCIEXYZ* WhitePointOut,
+ const cmsMAT3* ChromaticAdaptationMatrixOut,
+ cmsMAT3* m)
+{
+ cmsMAT3 Scale, m1, m2, m3, m4;
+
+ // TODO: Follow Marc Mahy's recommendation to check if CHAD is same by using M1*M2 == M2*M1. If so, do nothing.
+ // TODO: Add support for ArgyllArts tag
+
+ // Adaptation state
+ if (AdaptationState == 1.0) {
+
+ // Observer is fully adapted. Keep chromatic adaptation.
+ // That is the standard V4 behaviour
+ _cmsVEC3init(&m->v[0], WhitePointIn->X / WhitePointOut->X, 0, 0);
+ _cmsVEC3init(&m->v[1], 0, WhitePointIn->Y / WhitePointOut->Y, 0);
+ _cmsVEC3init(&m->v[2], 0, 0, WhitePointIn->Z / WhitePointOut->Z);
+
+ }
+ else {
+
+ // Incomplete adaptation. This is an advanced feature.
+ _cmsVEC3init(&Scale.v[0], WhitePointIn->X / WhitePointOut->X, 0, 0);
+ _cmsVEC3init(&Scale.v[1], 0, WhitePointIn->Y / WhitePointOut->Y, 0);
+ _cmsVEC3init(&Scale.v[2], 0, 0, WhitePointIn->Z / WhitePointOut->Z);
+
+
+ if (AdaptationState == 0.0) {
+
+ m1 = *ChromaticAdaptationMatrixOut;
+ _cmsMAT3per(&m2, &m1, &Scale);
+ // m2 holds CHAD from output white to D50 times abs. col. scaling
+
+ // Observer is not adapted, undo the chromatic adaptation
+ _cmsMAT3per(m, &m2, ChromaticAdaptationMatrixOut);
+
+ m3 = *ChromaticAdaptationMatrixIn;
+ if (!_cmsMAT3inverse(&m3, &m4)) return FALSE;
+ _cmsMAT3per(m, &m2, &m4);
+
+ } else {
+
+ cmsMAT3 MixedCHAD;
+ cmsFloat64Number TempSrc, TempDest, Temp;
+
+ m1 = *ChromaticAdaptationMatrixIn;
+ if (!_cmsMAT3inverse(&m1, &m2)) return FALSE;
+ _cmsMAT3per(&m3, &m2, &Scale);
+ // m3 holds CHAD from input white to D50 times abs. col. scaling
+
+ TempSrc = CHAD2Temp(ChromaticAdaptationMatrixIn);
+ TempDest = CHAD2Temp(ChromaticAdaptationMatrixOut);
+
+ if (TempSrc < 0.0 || TempDest < 0.0) return FALSE; // Something went wrong
+
+ if (_cmsMAT3isIdentity(&Scale) && fabs(TempSrc - TempDest) < 0.01) {
+
+ _cmsMAT3identity(m);
+ return TRUE;
+ }
+
+ Temp = (1.0 - AdaptationState) * TempDest + AdaptationState * TempSrc;
+
+ // Get a CHAD from whatever output temperature to D50. This replaces output CHAD
+ Temp2CHAD(&MixedCHAD, Temp);
+
+ _cmsMAT3per(m, &m3, &MixedCHAD);
+ }
+
+ }
+ return TRUE;
+
+}
+
+// Just to see if m matrix should be applied
+static
+cmsBool IsEmptyLayer(cmsMAT3* m, cmsVEC3* off)
+{
+ cmsFloat64Number diff = 0;
+ cmsMAT3 Ident;
+ int i;
+
+ if (m == NULL && off == NULL) return TRUE; // NULL is allowed as an empty layer
+ if (m == NULL && off != NULL) return FALSE; // This is an internal error
+
+ _cmsMAT3identity(&Ident);
+
+ for (i=0; i < 3*3; i++)
+ diff += fabs(((cmsFloat64Number*)m)[i] - ((cmsFloat64Number*)&Ident)[i]);
+
+ for (i=0; i < 3; i++)
+ diff += fabs(((cmsFloat64Number*)off)[i]);
+
+
+ return (diff < 0.002);
+}
+
+
+// Compute the conversion layer
+static
+cmsBool ComputeConversion(int i, cmsHPROFILE hProfiles[],
+ cmsUInt32Number Intent,
+ cmsBool BPC,
+ cmsFloat64Number AdaptationState,
+ cmsMAT3* m, cmsVEC3* off)
+{
+
+ int k;
+
+ // m and off are set to identity and this is detected latter on
+ _cmsMAT3identity(m);
+ _cmsVEC3init(off, 0, 0, 0);
+
+ // If intent is abs. colorimetric,
+ if (Intent == INTENT_ABSOLUTE_COLORIMETRIC) {
+
+ cmsCIEXYZ WhitePointIn, WhitePointOut;
+ cmsMAT3 ChromaticAdaptationMatrixIn, ChromaticAdaptationMatrixOut;
+
+ _cmsReadMediaWhitePoint(&WhitePointIn, hProfiles[i-1]);
+ _cmsReadCHAD(&ChromaticAdaptationMatrixIn, hProfiles[i-1]);
+
+ _cmsReadMediaWhitePoint(&WhitePointOut, hProfiles[i]);
+ _cmsReadCHAD(&ChromaticAdaptationMatrixOut, hProfiles[i]);
+
+ if (!ComputeAbsoluteIntent(AdaptationState,
+ &WhitePointIn, &ChromaticAdaptationMatrixIn,
+ &WhitePointOut, &ChromaticAdaptationMatrixOut, m)) return FALSE;
+
+ }
+ else {
+ // Rest of intents may apply BPC.
+
+ if (BPC) {
+
+ cmsCIEXYZ BlackPointIn, BlackPointOut;
+
+ cmsDetectBlackPoint(&BlackPointIn, hProfiles[i-1], Intent, 0);
+ cmsDetectDestinationBlackPoint(&BlackPointOut, hProfiles[i], Intent, 0);
+
+ // If black points are equal, then do nothing
+ if (BlackPointIn.X != BlackPointOut.X ||
+ BlackPointIn.Y != BlackPointOut.Y ||
+ BlackPointIn.Z != BlackPointOut.Z)
+ ComputeBlackPointCompensation(&BlackPointIn, &BlackPointOut, m, off);
+ }
+ }
+
+ // Offset should be adjusted because the encoding. We encode XYZ normalized to 0..1.0,
+ // to do that, we divide by MAX_ENCODEABLE_XZY. The conversion stage goes XYZ -> XYZ so
+ // we have first to convert from encoded to XYZ and then convert back to encoded.
+ // y = Mx + Off
+ // x = x'c
+ // y = M x'c + Off
+ // y = y'c; y' = y / c
+ // y' = (Mx'c + Off) /c = Mx' + (Off / c)
+
+ for (k=0; k < 3; k++) {
+ off ->n[k] /= MAX_ENCODEABLE_XYZ;
+ }
+
+ return TRUE;
+}
+
+
+// Add a conversion stage if needed. If a matrix/offset m is given, it applies to XYZ space
+static
+cmsBool AddConversion(cmsPipeline* Result, cmsColorSpaceSignature InPCS, cmsColorSpaceSignature OutPCS, cmsMAT3* m, cmsVEC3* off)
+{
+ cmsFloat64Number* m_as_dbl = (cmsFloat64Number*) m;
+ cmsFloat64Number* off_as_dbl = (cmsFloat64Number*) off;
+
+ // Handle PCS mismatches. A specialized stage is added to the LUT in such case
+ switch (InPCS) {
+
+ case cmsSigXYZData: // Input profile operates in XYZ
+
+ switch (OutPCS) {
+
+ case cmsSigXYZData: // XYZ -> XYZ
+ if (!IsEmptyLayer(m, off) &&
+ !cmsPipelineInsertStage(Result, cmsAT_END, cmsStageAllocMatrix(Result ->ContextID, 3, 3, m_as_dbl, off_as_dbl)))
+ return FALSE;
+ break;
+
+ case cmsSigLabData: // XYZ -> Lab
+ if (!IsEmptyLayer(m, off) &&
+ !cmsPipelineInsertStage(Result, cmsAT_END, cmsStageAllocMatrix(Result ->ContextID, 3, 3, m_as_dbl, off_as_dbl)))
+ return FALSE;
+ if (!cmsPipelineInsertStage(Result, cmsAT_END, _cmsStageAllocXYZ2Lab(Result ->ContextID)))
+ return FALSE;
+ break;
+
+ default:
+ return FALSE; // Colorspace mismatch
+ }
+ break;
+
+ case cmsSigLabData: // Input profile operates in Lab
+
+ switch (OutPCS) {
+
+ case cmsSigXYZData: // Lab -> XYZ
+
+ if (!cmsPipelineInsertStage(Result, cmsAT_END, _cmsStageAllocLab2XYZ(Result ->ContextID)))
+ return FALSE;
+ if (!IsEmptyLayer(m, off) &&
+ !cmsPipelineInsertStage(Result, cmsAT_END, cmsStageAllocMatrix(Result ->ContextID, 3, 3, m_as_dbl, off_as_dbl)))
+ return FALSE;
+ break;
+
+ case cmsSigLabData: // Lab -> Lab
+
+ if (!IsEmptyLayer(m, off)) {
+ if (!cmsPipelineInsertStage(Result, cmsAT_END, _cmsStageAllocLab2XYZ(Result ->ContextID)) ||
+ !cmsPipelineInsertStage(Result, cmsAT_END, cmsStageAllocMatrix(Result ->ContextID, 3, 3, m_as_dbl, off_as_dbl)) ||
+ !cmsPipelineInsertStage(Result, cmsAT_END, _cmsStageAllocXYZ2Lab(Result ->ContextID)))
+ return FALSE;
+ }
+ break;
+
+ default:
+ return FALSE; // Mismatch
+ }
+ break;
+
+ // On colorspaces other than PCS, check for same space
+ default:
+ if (InPCS != OutPCS) return FALSE;
+ break;
+ }
+
+ return TRUE;
+}
+
+
+// Is a given space compatible with another?
+static
+cmsBool ColorSpaceIsCompatible(cmsColorSpaceSignature a, cmsColorSpaceSignature b)
+{
+ // If they are same, they are compatible.
+ if (a == b) return TRUE;
+
+ // Check for MCH4 substitution of CMYK
+ if ((a == cmsSig4colorData) && (b == cmsSigCmykData)) return TRUE;
+ if ((a == cmsSigCmykData) && (b == cmsSig4colorData)) return TRUE;
+
+ // Check for XYZ/Lab. Those spaces are interchangeable as they can be computed one from other.
+ if ((a == cmsSigXYZData) && (b == cmsSigLabData)) return TRUE;
+ if ((a == cmsSigLabData) && (b == cmsSigXYZData)) return TRUE;
+
+ return FALSE;
+}
+
+
+// Default handler for ICC-style intents
+static
+cmsPipeline* DefaultICCintents(cmsContext ContextID,
+ cmsUInt32Number nProfiles,
+ cmsUInt32Number TheIntents[],
+ cmsHPROFILE hProfiles[],
+ cmsBool BPC[],
+ cmsFloat64Number AdaptationStates[],
+ cmsUInt32Number dwFlags)
+{
+ cmsPipeline* Lut = NULL;
+ cmsPipeline* Result;
+ cmsHPROFILE hProfile;
+ cmsMAT3 m;
+ cmsVEC3 off;
+ cmsColorSpaceSignature ColorSpaceIn, ColorSpaceOut = cmsSigLabData, CurrentColorSpace;
+ cmsProfileClassSignature ClassSig;
+ cmsUInt32Number i, Intent;
+
+ // For safety
+ if (nProfiles == 0) return NULL;
+
+ // Allocate an empty LUT for holding the result. 0 as channel count means 'undefined'
+ Result = cmsPipelineAlloc(ContextID, 0, 0);
+ if (Result == NULL) return NULL;
+
+ CurrentColorSpace = cmsGetColorSpace(hProfiles[0]);
+
+ for (i=0; i < nProfiles; i++) {
+
+ cmsBool lIsDeviceLink, lIsInput;
+
+ hProfile = hProfiles[i];
+ ClassSig = cmsGetDeviceClass(hProfile);
+ lIsDeviceLink = (ClassSig == cmsSigLinkClass || ClassSig == cmsSigAbstractClass );
+
+ // First profile is used as input unless devicelink or abstract
+ if ((i == 0) && !lIsDeviceLink) {
+ lIsInput = TRUE;
+ }
+ else {
+ // Else use profile in the input direction if current space is not PCS
+ lIsInput = (CurrentColorSpace != cmsSigXYZData) &&
+ (CurrentColorSpace != cmsSigLabData);
+ }
+
+ Intent = TheIntents[i];
+
+ if (lIsInput || lIsDeviceLink) {
+
+ ColorSpaceIn = cmsGetColorSpace(hProfile);
+ ColorSpaceOut = cmsGetPCS(hProfile);
+ }
+ else {
+
+ ColorSpaceIn = cmsGetPCS(hProfile);
+ ColorSpaceOut = cmsGetColorSpace(hProfile);
+ }
+
+ if (!ColorSpaceIsCompatible(ColorSpaceIn, CurrentColorSpace)) {
+
+ cmsSignalError(ContextID, cmsERROR_COLORSPACE_CHECK, "ColorSpace mismatch");
+ goto Error;
+ }
+
+ // If devicelink is found, then no custom intent is allowed and we can
+ // read the LUT to be applied. Settings don't apply here.
+ if (lIsDeviceLink || ((ClassSig == cmsSigNamedColorClass) && (nProfiles == 1))) {
+
+ // Get the involved LUT from the profile
+ Lut = _cmsReadDevicelinkLUT(hProfile, Intent);
+ if (Lut == NULL) goto Error;
+
+ // What about abstract profiles?
+ if (ClassSig == cmsSigAbstractClass && i > 0) {
+ if (!ComputeConversion(i, hProfiles, Intent, BPC[i], AdaptationStates[i], &m, &off)) goto Error;
+ }
+ else {
+ _cmsMAT3identity(&m);
+ _cmsVEC3init(&off, 0, 0, 0);
+ }
+
+
+ if (!AddConversion(Result, CurrentColorSpace, ColorSpaceIn, &m, &off)) goto Error;
+
+ }
+ else {
+
+ if (lIsInput) {
+ // Input direction means non-pcs connection, so proceed like devicelinks
+ Lut = _cmsReadInputLUT(hProfile, Intent);
+ if (Lut == NULL) goto Error;
+ }
+ else {
+
+ // Output direction means PCS connection. Intent may apply here
+ Lut = _cmsReadOutputLUT(hProfile, Intent);
+ if (Lut == NULL) goto Error;
+
+
+ if (!ComputeConversion(i, hProfiles, Intent, BPC[i], AdaptationStates[i], &m, &off)) goto Error;
+ if (!AddConversion(Result, CurrentColorSpace, ColorSpaceIn, &m, &off)) goto Error;
+
+ }
+ }
+
+ // Concatenate to the output LUT
+ if (!cmsPipelineCat(Result, Lut))
+ goto Error;
+
+ cmsPipelineFree(Lut);
+ Lut = NULL;
+
+ // Update current space
+ CurrentColorSpace = ColorSpaceOut;
+ }
+
+ // Check for non-negatives clip
+ if (dwFlags & cmsFLAGS_NONEGATIVES) {
+
+ if (ColorSpaceOut == cmsSigGrayData ||
+ ColorSpaceOut == cmsSigRgbData ||
+ ColorSpaceOut == cmsSigCmykData) {
+
+ cmsStage* clip = _cmsStageClipNegatives(Result->ContextID, cmsChannelsOf(ColorSpaceOut));
+ if (clip == NULL) goto Error;
+
+ if (!cmsPipelineInsertStage(Result, cmsAT_END, clip))
+ goto Error;
+ }
+
+ }
+
+ return Result;
+
+Error:
+
+ if (Lut != NULL) cmsPipelineFree(Lut);
+ if (Result != NULL) cmsPipelineFree(Result);
+ return NULL;
+
+ cmsUNUSED_PARAMETER(dwFlags);
+}
+
+
+// Wrapper for DLL calling convention
+cmsPipeline* CMSEXPORT _cmsDefaultICCintents(cmsContext ContextID,
+ cmsUInt32Number nProfiles,
+ cmsUInt32Number TheIntents[],
+ cmsHPROFILE hProfiles[],
+ cmsBool BPC[],
+ cmsFloat64Number AdaptationStates[],
+ cmsUInt32Number dwFlags)
+{
+ return DefaultICCintents(ContextID, nProfiles, TheIntents, hProfiles, BPC, AdaptationStates, dwFlags);
+}
+
+// Black preserving intents ---------------------------------------------------------------------------------------------
+
+// Translate black-preserving intents to ICC ones
+static
+int TranslateNonICCIntents(int Intent)
+{
+ switch (Intent) {
+ case INTENT_PRESERVE_K_ONLY_PERCEPTUAL:
+ case INTENT_PRESERVE_K_PLANE_PERCEPTUAL:
+ return INTENT_PERCEPTUAL;
+
+ case INTENT_PRESERVE_K_ONLY_RELATIVE_COLORIMETRIC:
+ case INTENT_PRESERVE_K_PLANE_RELATIVE_COLORIMETRIC:
+ return INTENT_RELATIVE_COLORIMETRIC;
+
+ case INTENT_PRESERVE_K_ONLY_SATURATION:
+ case INTENT_PRESERVE_K_PLANE_SATURATION:
+ return INTENT_SATURATION;
+
+ default: return Intent;
+ }
+}
+
+// Sampler for Black-only preserving CMYK->CMYK transforms
+
+typedef struct {
+ cmsPipeline* cmyk2cmyk; // The original transform
+ cmsToneCurve* KTone; // Black-to-black tone curve
+
+} GrayOnlyParams;
+
+
+// Preserve black only if that is the only ink used
+static
+int BlackPreservingGrayOnlySampler(register const cmsUInt16Number In[], register cmsUInt16Number Out[], register void* Cargo)
+{
+ GrayOnlyParams* bp = (GrayOnlyParams*) Cargo;
+
+ // If going across black only, keep black only
+ if (In[0] == 0 && In[1] == 0 && In[2] == 0) {
+
+ // TAC does not apply because it is black ink!
+ Out[0] = Out[1] = Out[2] = 0;
+ Out[3] = cmsEvalToneCurve16(bp->KTone, In[3]);
+ return TRUE;
+ }
+
+ // Keep normal transform for other colors
+ bp ->cmyk2cmyk ->Eval16Fn(In, Out, bp ->cmyk2cmyk->Data);
+ return TRUE;
+}
+
+// This is the entry for black-preserving K-only intents, which are non-ICC
+static
+cmsPipeline* BlackPreservingKOnlyIntents(cmsContext ContextID,
+ cmsUInt32Number nProfiles,
+ cmsUInt32Number TheIntents[],
+ cmsHPROFILE hProfiles[],
+ cmsBool BPC[],
+ cmsFloat64Number AdaptationStates[],
+ cmsUInt32Number dwFlags)
+{
+ GrayOnlyParams bp;
+ cmsPipeline* Result;
+ cmsUInt32Number ICCIntents[256];
+ cmsStage* CLUT;
+ cmsUInt32Number i, nGridPoints;
+
+
+ // Sanity check
+ if (nProfiles < 1 || nProfiles > 255) return NULL;
+
+ // Translate black-preserving intents to ICC ones
+ for (i=0; i < nProfiles; i++)
+ ICCIntents[i] = TranslateNonICCIntents(TheIntents[i]);
+
+ // Check for non-cmyk profiles
+ if (cmsGetColorSpace(hProfiles[0]) != cmsSigCmykData ||
+ cmsGetColorSpace(hProfiles[nProfiles-1]) != cmsSigCmykData)
+ return DefaultICCintents(ContextID, nProfiles, ICCIntents, hProfiles, BPC, AdaptationStates, dwFlags);
+
+ memset(&bp, 0, sizeof(bp));
+
+ // Allocate an empty LUT for holding the result
+ Result = cmsPipelineAlloc(ContextID, 4, 4);
+ if (Result == NULL) return NULL;
+
+ // Create a LUT holding normal ICC transform
+ bp.cmyk2cmyk = DefaultICCintents(ContextID,
+ nProfiles,
+ ICCIntents,
+ hProfiles,
+ BPC,
+ AdaptationStates,
+ dwFlags);
+
+ if (bp.cmyk2cmyk == NULL) goto Error;
+
+ // Now, compute the tone curve
+ bp.KTone = _cmsBuildKToneCurve(ContextID,
+ 4096,
+ nProfiles,
+ ICCIntents,
+ hProfiles,
+ BPC,
+ AdaptationStates,
+ dwFlags);
+
+ if (bp.KTone == NULL) goto Error;
+
+
+ // How many gridpoints are we going to use?
+ nGridPoints = _cmsReasonableGridpointsByColorspace(cmsSigCmykData, dwFlags);
+
+ // Create the CLUT. 16 bits
+ CLUT = cmsStageAllocCLut16bit(ContextID, nGridPoints, 4, 4, NULL);
+ if (CLUT == NULL) goto Error;
+
+ // This is the one and only MPE in this LUT
+ if (!cmsPipelineInsertStage(Result, cmsAT_BEGIN, CLUT))
+ goto Error;
+
+ // Sample it. We cannot afford pre/post linearization this time.
+ if (!cmsStageSampleCLut16bit(CLUT, BlackPreservingGrayOnlySampler, (void*) &bp, 0))
+ goto Error;
+
+ // Get rid of xform and tone curve
+ cmsPipelineFree(bp.cmyk2cmyk);
+ cmsFreeToneCurve(bp.KTone);
+
+ return Result;
+
+Error:
+
+ if (bp.cmyk2cmyk != NULL) cmsPipelineFree(bp.cmyk2cmyk);
+ if (bp.KTone != NULL) cmsFreeToneCurve(bp.KTone);
+ if (Result != NULL) cmsPipelineFree(Result);
+ return NULL;
+
+}
+
+// K Plane-preserving CMYK to CMYK ------------------------------------------------------------------------------------
+
+typedef struct {
+
+ cmsPipeline* cmyk2cmyk; // The original transform
+ cmsHTRANSFORM hProofOutput; // Output CMYK to Lab (last profile)
+ cmsHTRANSFORM cmyk2Lab; // The input chain
+ cmsToneCurve* KTone; // Black-to-black tone curve
+ cmsPipeline* LabK2cmyk; // The output profile
+ cmsFloat64Number MaxError;
+
+ cmsHTRANSFORM hRoundTrip;
+ cmsFloat64Number MaxTAC;
+
+
+} PreserveKPlaneParams;
+
+
+// The CLUT will be stored at 16 bits, but calculations are performed at cmsFloat32Number precision
+static
+int BlackPreservingSampler(register const cmsUInt16Number In[], register cmsUInt16Number Out[], register void* Cargo)
+{
+ int i;
+ cmsFloat32Number Inf[4], Outf[4];
+ cmsFloat32Number LabK[4];
+ cmsFloat64Number SumCMY, SumCMYK, Error, Ratio;
+ cmsCIELab ColorimetricLab, BlackPreservingLab;
+ PreserveKPlaneParams* bp = (PreserveKPlaneParams*) Cargo;
+
+ // Convert from 16 bits to floating point
+ for (i=0; i < 4; i++)
+ Inf[i] = (cmsFloat32Number) (In[i] / 65535.0);
+
+ // Get the K across Tone curve
+ LabK[3] = cmsEvalToneCurveFloat(bp ->KTone, Inf[3]);
+
+ // If going across black only, keep black only
+ if (In[0] == 0 && In[1] == 0 && In[2] == 0) {
+
+ Out[0] = Out[1] = Out[2] = 0;
+ Out[3] = _cmsQuickSaturateWord(LabK[3] * 65535.0);
+ return TRUE;
+ }
+
+ // Try the original transform,
+ cmsPipelineEvalFloat( Inf, Outf, bp ->cmyk2cmyk);
+
+ // Store a copy of the floating point result into 16-bit
+ for (i=0; i < 4; i++)
+ Out[i] = _cmsQuickSaturateWord(Outf[i] * 65535.0);
+
+ // Maybe K is already ok (mostly on K=0)
+ if ( fabs(Outf[3] - LabK[3]) < (3.0 / 65535.0) ) {
+ return TRUE;
+ }
+
+ // K differ, mesure and keep Lab measurement for further usage
+ // this is done in relative colorimetric intent
+ cmsDoTransform(bp->hProofOutput, Out, &ColorimetricLab, 1);
+
+ // Is not black only and the transform doesn't keep black.
+ // Obtain the Lab of output CMYK. After that we have Lab + K
+ cmsDoTransform(bp ->cmyk2Lab, Outf, LabK, 1);
+
+ // Obtain the corresponding CMY using reverse interpolation
+ // (K is fixed in LabK[3])
+ if (!cmsPipelineEvalReverseFloat(LabK, Outf, Outf, bp ->LabK2cmyk)) {
+
+ // Cannot find a suitable value, so use colorimetric xform
+ // which is already stored in Out[]
+ return TRUE;
+ }
+
+ // Make sure to pass through K (which now is fixed)
+ Outf[3] = LabK[3];
+
+ // Apply TAC if needed
+ SumCMY = Outf[0] + Outf[1] + Outf[2];
+ SumCMYK = SumCMY + Outf[3];
+
+ if (SumCMYK > bp ->MaxTAC) {
+
+ Ratio = 1 - ((SumCMYK - bp->MaxTAC) / SumCMY);
+ if (Ratio < 0)
+ Ratio = 0;
+ }
+ else
+ Ratio = 1.0;
+
+ Out[0] = _cmsQuickSaturateWord(Outf[0] * Ratio * 65535.0); // C
+ Out[1] = _cmsQuickSaturateWord(Outf[1] * Ratio * 65535.0); // M
+ Out[2] = _cmsQuickSaturateWord(Outf[2] * Ratio * 65535.0); // Y
+ Out[3] = _cmsQuickSaturateWord(Outf[3] * 65535.0);
+
+ // Estimate the error (this goes 16 bits to Lab DBL)
+ cmsDoTransform(bp->hProofOutput, Out, &BlackPreservingLab, 1);
+ Error = cmsDeltaE(&ColorimetricLab, &BlackPreservingLab);
+ if (Error > bp -> MaxError)
+ bp->MaxError = Error;
+
+ return TRUE;
+}
+
+// This is the entry for black-plane preserving, which are non-ICC
+static
+cmsPipeline* BlackPreservingKPlaneIntents(cmsContext ContextID,
+ cmsUInt32Number nProfiles,
+ cmsUInt32Number TheIntents[],
+ cmsHPROFILE hProfiles[],
+ cmsBool BPC[],
+ cmsFloat64Number AdaptationStates[],
+ cmsUInt32Number dwFlags)
+{
+ PreserveKPlaneParams bp;
+ cmsPipeline* Result = NULL;
+ cmsUInt32Number ICCIntents[256];
+ cmsStage* CLUT;
+ cmsUInt32Number i, nGridPoints;
+ cmsHPROFILE hLab;
+
+ // Sanity check
+ if (nProfiles < 1 || nProfiles > 255) return NULL;
+
+ // Translate black-preserving intents to ICC ones
+ for (i=0; i < nProfiles; i++)
+ ICCIntents[i] = TranslateNonICCIntents(TheIntents[i]);
+
+ // Check for non-cmyk profiles
+ if (cmsGetColorSpace(hProfiles[0]) != cmsSigCmykData ||
+ !(cmsGetColorSpace(hProfiles[nProfiles-1]) == cmsSigCmykData ||
+ cmsGetDeviceClass(hProfiles[nProfiles-1]) == cmsSigOutputClass))
+ return DefaultICCintents(ContextID, nProfiles, ICCIntents, hProfiles, BPC, AdaptationStates, dwFlags);
+
+ // Allocate an empty LUT for holding the result
+ Result = cmsPipelineAlloc(ContextID, 4, 4);
+ if (Result == NULL) return NULL;
+
+
+ memset(&bp, 0, sizeof(bp));
+
+ // We need the input LUT of the last profile, assuming this one is responsible of
+ // black generation. This LUT will be searched in inverse order.
+ bp.LabK2cmyk = _cmsReadInputLUT(hProfiles[nProfiles-1], INTENT_RELATIVE_COLORIMETRIC);
+ if (bp.LabK2cmyk == NULL) goto Cleanup;
+
+ // Get total area coverage (in 0..1 domain)
+ bp.MaxTAC = cmsDetectTAC(hProfiles[nProfiles-1]) / 100.0;
+ if (bp.MaxTAC <= 0) goto Cleanup;
+
+
+ // Create a LUT holding normal ICC transform
+ bp.cmyk2cmyk = DefaultICCintents(ContextID,
+ nProfiles,
+ ICCIntents,
+ hProfiles,
+ BPC,
+ AdaptationStates,
+ dwFlags);
+ if (bp.cmyk2cmyk == NULL) goto Cleanup;
+
+ // Now the tone curve
+ bp.KTone = _cmsBuildKToneCurve(ContextID, 4096, nProfiles,
+ ICCIntents,
+ hProfiles,
+ BPC,
+ AdaptationStates,
+ dwFlags);
+ if (bp.KTone == NULL) goto Cleanup;
+
+ // To measure the output, Last profile to Lab
+ hLab = cmsCreateLab4ProfileTHR(ContextID, NULL);
+ bp.hProofOutput = cmsCreateTransformTHR(ContextID, hProfiles[nProfiles-1],
+ CHANNELS_SH(4)|BYTES_SH(2), hLab, TYPE_Lab_DBL,
+ INTENT_RELATIVE_COLORIMETRIC,
+ cmsFLAGS_NOCACHE|cmsFLAGS_NOOPTIMIZE);
+ if ( bp.hProofOutput == NULL) goto Cleanup;
+
+ // Same as anterior, but lab in the 0..1 range
+ bp.cmyk2Lab = cmsCreateTransformTHR(ContextID, hProfiles[nProfiles-1],
+ FLOAT_SH(1)|CHANNELS_SH(4)|BYTES_SH(4), hLab,
+ FLOAT_SH(1)|CHANNELS_SH(3)|BYTES_SH(4),
+ INTENT_RELATIVE_COLORIMETRIC,
+ cmsFLAGS_NOCACHE|cmsFLAGS_NOOPTIMIZE);
+ if (bp.cmyk2Lab == NULL) goto Cleanup;
+ cmsCloseProfile(hLab);
+
+ // Error estimation (for debug only)
+ bp.MaxError = 0;
+
+ // How many gridpoints are we going to use?
+ nGridPoints = _cmsReasonableGridpointsByColorspace(cmsSigCmykData, dwFlags);
+
+
+ CLUT = cmsStageAllocCLut16bit(ContextID, nGridPoints, 4, 4, NULL);
+ if (CLUT == NULL) goto Cleanup;
+
+ if (!cmsPipelineInsertStage(Result, cmsAT_BEGIN, CLUT))
+ goto Cleanup;
+
+ cmsStageSampleCLut16bit(CLUT, BlackPreservingSampler, (void*) &bp, 0);
+
+Cleanup:
+
+ if (bp.cmyk2cmyk) cmsPipelineFree(bp.cmyk2cmyk);
+ if (bp.cmyk2Lab) cmsDeleteTransform(bp.cmyk2Lab);
+ if (bp.hProofOutput) cmsDeleteTransform(bp.hProofOutput);
+
+ if (bp.KTone) cmsFreeToneCurve(bp.KTone);
+ if (bp.LabK2cmyk) cmsPipelineFree(bp.LabK2cmyk);
+
+ return Result;
+}
+
+// Link routines ------------------------------------------------------------------------------------------------------
+
+// Chain several profiles into a single LUT. It just checks the parameters and then calls the handler
+// for the first intent in chain. The handler may be user-defined. Is up to the handler to deal with the
+// rest of intents in chain. A maximum of 255 profiles at time are supported, which is pretty reasonable.
+cmsPipeline* _cmsLinkProfiles(cmsContext ContextID,
+ cmsUInt32Number nProfiles,
+ cmsUInt32Number TheIntents[],
+ cmsHPROFILE hProfiles[],
+ cmsBool BPC[],
+ cmsFloat64Number AdaptationStates[],
+ cmsUInt32Number dwFlags)
+{
+ cmsUInt32Number i;
+ cmsIntentsList* Intent;
+
+ // Make sure a reasonable number of profiles is provided
+ if (nProfiles <= 0 || nProfiles > 255) {
+ cmsSignalError(ContextID, cmsERROR_RANGE, "Couldn't link '%d' profiles", nProfiles);
+ return NULL;
+ }
+
+ for (i=0; i < nProfiles; i++) {
+
+ // Check if black point is really needed or allowed. Note that
+ // following Adobe's document:
+ // BPC does not apply to devicelink profiles, nor to abs colorimetric,
+ // and applies always on V4 perceptual and saturation.
+
+ if (TheIntents[i] == INTENT_ABSOLUTE_COLORIMETRIC)
+ BPC[i] = FALSE;
+
+ if (TheIntents[i] == INTENT_PERCEPTUAL || TheIntents[i] == INTENT_SATURATION) {
+
+ // Force BPC for V4 profiles in perceptual and saturation
+ if (cmsGetEncodedICCversion(hProfiles[i]) >= 0x4000000)
+ BPC[i] = TRUE;
+ }
+ }
+
+ // Search for a handler. The first intent in the chain defines the handler. That would
+ // prevent using multiple custom intents in a multiintent chain, but the behaviour of
+ // this case would present some issues if the custom intent tries to do things like
+ // preserve primaries. This solution is not perfect, but works well on most cases.
+
+ Intent = SearchIntent(ContextID, TheIntents[0]);
+ if (Intent == NULL) {
+ cmsSignalError(ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unsupported intent '%d'", TheIntents[0]);
+ return NULL;
+ }
+
+ // Call the handler
+ return Intent ->Link(ContextID, nProfiles, TheIntents, hProfiles, BPC, AdaptationStates, dwFlags);
+}
+
+// -------------------------------------------------------------------------------------------------
+
+// Get information about available intents. nMax is the maximum space for the supplied "Codes"
+// and "Descriptions" the function returns the total number of intents, which may be greater
+// than nMax, although the matrices are not populated beyond this level.
+cmsUInt32Number CMSEXPORT cmsGetSupportedIntentsTHR(cmsContext ContextID, cmsUInt32Number nMax, cmsUInt32Number* Codes, char** Descriptions)
+{
+ _cmsIntentsPluginChunkType* ctx = ( _cmsIntentsPluginChunkType*) _cmsContextGetClientChunk(ContextID, IntentPlugin);
+ cmsIntentsList* pt;
+ cmsUInt32Number nIntents;
+
+
+ for (nIntents=0, pt = ctx->Intents; pt != NULL; pt = pt -> Next)
+ {
+ if (nIntents < nMax) {
+ if (Codes != NULL)
+ Codes[nIntents] = pt ->Intent;
+
+ if (Descriptions != NULL)
+ Descriptions[nIntents] = pt ->Description;
+ }
+
+ nIntents++;
+ }
+
+ for (nIntents=0, pt = DefaultIntents; pt != NULL; pt = pt -> Next)
+ {
+ if (nIntents < nMax) {
+ if (Codes != NULL)
+ Codes[nIntents] = pt ->Intent;
+
+ if (Descriptions != NULL)
+ Descriptions[nIntents] = pt ->Description;
+ }
+
+ nIntents++;
+ }
+ return nIntents;
+}
+
+cmsUInt32Number CMSEXPORT cmsGetSupportedIntents(cmsUInt32Number nMax, cmsUInt32Number* Codes, char** Descriptions)
+{
+ return cmsGetSupportedIntentsTHR(NULL, nMax, Codes, Descriptions);
+}
+
+// The plug-in registration. User can add new intents or override default routines
+cmsBool _cmsRegisterRenderingIntentPlugin(cmsContext id, cmsPluginBase* Data)
+{
+ _cmsIntentsPluginChunkType* ctx = ( _cmsIntentsPluginChunkType*) _cmsContextGetClientChunk(id, IntentPlugin);
+ cmsPluginRenderingIntent* Plugin = (cmsPluginRenderingIntent*) Data;
+ cmsIntentsList* fl;
+
+ // Do we have to reset the custom intents?
+ if (Data == NULL) {
+
+ ctx->Intents = NULL;
+ return TRUE;
+ }
+
+ fl = (cmsIntentsList*) _cmsPluginMalloc(id, sizeof(cmsIntentsList));
+ if (fl == NULL) return FALSE;
+
+
+ fl ->Intent = Plugin ->Intent;
+ strncpy(fl ->Description, Plugin ->Description, sizeof(fl ->Description)-1);
+ fl ->Description[sizeof(fl ->Description)-1] = 0;
+
+ fl ->Link = Plugin ->Link;
+
+ fl ->Next = ctx ->Intents;
+ ctx ->Intents = fl;
+
+ return TRUE;
+}
+