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-rw-r--r--third_party/lcms/src/cmsintrp.c1506
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diff --git a/third_party/lcms/src/cmsintrp.c b/third_party/lcms/src/cmsintrp.c
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+++ b/third_party/lcms/src/cmsintrp.c
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+//---------------------------------------------------------------------------------
+//
+// Little Color Management System
+// Copyright (c) 1998-2012 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"
+
+// This module incorporates several interpolation routines, for 1 to 8 channels on input and
+// up to 65535 channels on output. The user may change those by using the interpolation plug-in
+
+// Interpolation routines by default
+static cmsInterpFunction DefaultInterpolatorsFactory(cmsUInt32Number nInputChannels, cmsUInt32Number nOutputChannels, cmsUInt32Number dwFlags);
+
+// This is the default factory
+_cmsInterpPluginChunkType _cmsInterpPluginChunk = { NULL };
+
+// The interpolation plug-in memory chunk allocator/dup
+void _cmsAllocInterpPluginChunk(struct _cmsContext_struct* ctx, const struct _cmsContext_struct* src)
+{
+ void* from;
+
+ _cmsAssert(ctx != NULL);
+
+ if (src != NULL) {
+ from = src ->chunks[InterpPlugin];
+ }
+ else {
+ static _cmsInterpPluginChunkType InterpPluginChunk = { NULL };
+
+ from = &InterpPluginChunk;
+ }
+
+ _cmsAssert(from != NULL);
+ ctx ->chunks[InterpPlugin] = _cmsSubAllocDup(ctx ->MemPool, from, sizeof(_cmsInterpPluginChunkType));
+}
+
+
+// Main plug-in entry
+cmsBool _cmsRegisterInterpPlugin(cmsContext ContextID, cmsPluginBase* Data)
+{
+ cmsPluginInterpolation* Plugin = (cmsPluginInterpolation*) Data;
+ _cmsInterpPluginChunkType* ptr = (_cmsInterpPluginChunkType*) _cmsContextGetClientChunk(ContextID, InterpPlugin);
+
+ if (Data == NULL) {
+
+ ptr ->Interpolators = NULL;
+ return TRUE;
+ }
+
+ // Set replacement functions
+ ptr ->Interpolators = Plugin ->InterpolatorsFactory;
+ return TRUE;
+}
+
+
+// Set the interpolation method
+cmsBool _cmsSetInterpolationRoutine(cmsContext ContextID, cmsInterpParams* p)
+{
+ _cmsInterpPluginChunkType* ptr = (_cmsInterpPluginChunkType*) _cmsContextGetClientChunk(ContextID, InterpPlugin);
+
+ p ->Interpolation.Lerp16 = NULL;
+
+ // Invoke factory, possibly in the Plug-in
+ if (ptr ->Interpolators != NULL)
+ p ->Interpolation = ptr->Interpolators(p -> nInputs, p ->nOutputs, p ->dwFlags);
+
+ // If unsupported by the plug-in, go for the LittleCMS default.
+ // If happens only if an extern plug-in is being used
+ if (p ->Interpolation.Lerp16 == NULL)
+ p ->Interpolation = DefaultInterpolatorsFactory(p ->nInputs, p ->nOutputs, p ->dwFlags);
+
+ // Check for valid interpolator (we just check one member of the union)
+ if (p ->Interpolation.Lerp16 == NULL) {
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+
+// This function precalculates as many parameters as possible to speed up the interpolation.
+cmsInterpParams* _cmsComputeInterpParamsEx(cmsContext ContextID,
+ const cmsUInt32Number nSamples[],
+ int InputChan, int OutputChan,
+ const void *Table,
+ cmsUInt32Number dwFlags)
+{
+ cmsInterpParams* p;
+ int i;
+
+ // Check for maximum inputs
+ if (InputChan > MAX_INPUT_DIMENSIONS) {
+ cmsSignalError(ContextID, cmsERROR_RANGE, "Too many input channels (%d channels, max=%d)", InputChan, MAX_INPUT_DIMENSIONS);
+ return NULL;
+ }
+
+ // Creates an empty object
+ p = (cmsInterpParams*) _cmsMallocZero(ContextID, sizeof(cmsInterpParams));
+ if (p == NULL) return NULL;
+
+ // Keep original parameters
+ p -> dwFlags = dwFlags;
+ p -> nInputs = InputChan;
+ p -> nOutputs = OutputChan;
+ p ->Table = Table;
+ p ->ContextID = ContextID;
+
+ // Fill samples per input direction and domain (which is number of nodes minus one)
+ for (i=0; i < InputChan; i++) {
+
+ p -> nSamples[i] = nSamples[i];
+ p -> Domain[i] = nSamples[i] - 1;
+ }
+
+ // Compute factors to apply to each component to index the grid array
+ p -> opta[0] = p -> nOutputs;
+ for (i=1; i < InputChan; i++)
+ p ->opta[i] = p ->opta[i-1] * nSamples[InputChan-i];
+
+
+ if (!_cmsSetInterpolationRoutine(ContextID, p)) {
+ cmsSignalError(ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unsupported interpolation (%d->%d channels)", InputChan, OutputChan);
+ _cmsFree(ContextID, p);
+ return NULL;
+ }
+
+ // All seems ok
+ return p;
+}
+
+
+// This one is a wrapper on the anterior, but assuming all directions have same number of nodes
+cmsInterpParams* _cmsComputeInterpParams(cmsContext ContextID, int nSamples, int InputChan, int OutputChan, const void* Table, cmsUInt32Number dwFlags)
+{
+ int i;
+ cmsUInt32Number Samples[MAX_INPUT_DIMENSIONS];
+
+ // Fill the auxiliar array
+ for (i=0; i < MAX_INPUT_DIMENSIONS; i++)
+ Samples[i] = nSamples;
+
+ // Call the extended function
+ return _cmsComputeInterpParamsEx(ContextID, Samples, InputChan, OutputChan, Table, dwFlags);
+}
+
+
+// Free all associated memory
+void _cmsFreeInterpParams(cmsInterpParams* p)
+{
+ if (p != NULL) _cmsFree(p ->ContextID, p);
+}
+
+
+// Inline fixed point interpolation
+cmsINLINE cmsUInt16Number LinearInterp(cmsS15Fixed16Number a, cmsS15Fixed16Number l, cmsS15Fixed16Number h)
+{
+ cmsUInt32Number dif = (cmsUInt32Number) (h - l) * a + 0x8000;
+ dif = (dif >> 16) + l;
+ return (cmsUInt16Number) (dif);
+}
+
+
+// Linear interpolation (Fixed-point optimized)
+static
+void LinLerp1D(register const cmsUInt16Number Value[],
+ register cmsUInt16Number Output[],
+ register const cmsInterpParams* p)
+{
+ cmsUInt16Number y1, y0;
+ int cell0, rest;
+ int val3;
+ const cmsUInt16Number* LutTable = (cmsUInt16Number*) p ->Table;
+
+ // if last value...
+ if (Value[0] == 0xffff) {
+
+ Output[0] = LutTable[p -> Domain[0]];
+ return;
+ }
+
+ val3 = p -> Domain[0] * Value[0];
+ val3 = _cmsToFixedDomain(val3); // To fixed 15.16
+
+ cell0 = FIXED_TO_INT(val3); // Cell is 16 MSB bits
+ rest = FIXED_REST_TO_INT(val3); // Rest is 16 LSB bits
+
+ y0 = LutTable[cell0];
+ y1 = LutTable[cell0+1];
+
+
+ Output[0] = LinearInterp(rest, y0, y1);
+}
+
+// To prevent out of bounds indexing
+cmsINLINE cmsFloat32Number fclamp(cmsFloat32Number v)
+{
+ return ((v < 0.0f) || isnan(v)) ? 0.0f : (v > 1.0f ? 1.0f : v);
+}
+
+// Floating-point version of 1D interpolation
+static
+void LinLerp1Dfloat(const cmsFloat32Number Value[],
+ cmsFloat32Number Output[],
+ const cmsInterpParams* p)
+{
+ cmsFloat32Number y1, y0;
+ cmsFloat32Number val2, rest;
+ int cell0, cell1;
+ const cmsFloat32Number* LutTable = (cmsFloat32Number*) p ->Table;
+
+ val2 = fclamp(Value[0]);
+
+ // if last value...
+ if (val2 == 1.0) {
+ Output[0] = LutTable[p -> Domain[0]];
+ return;
+ }
+
+ val2 *= p -> Domain[0];
+
+ cell0 = (int) floor(val2);
+ cell1 = (int) ceil(val2);
+
+ // Rest is 16 LSB bits
+ rest = val2 - cell0;
+
+ y0 = LutTable[cell0] ;
+ y1 = LutTable[cell1] ;
+
+ Output[0] = y0 + (y1 - y0) * rest;
+}
+
+
+
+// Eval gray LUT having only one input channel
+static
+void Eval1Input(register const cmsUInt16Number Input[],
+ register cmsUInt16Number Output[],
+ register const cmsInterpParams* p16)
+{
+ cmsS15Fixed16Number fk;
+ cmsS15Fixed16Number k0, k1, rk, K0, K1;
+ int v;
+ cmsUInt32Number OutChan;
+ const cmsUInt16Number* LutTable = (cmsUInt16Number*) p16 -> Table;
+
+ v = Input[0] * p16 -> Domain[0];
+ fk = _cmsToFixedDomain(v);
+
+ k0 = FIXED_TO_INT(fk);
+ rk = (cmsUInt16Number) FIXED_REST_TO_INT(fk);
+
+ k1 = k0 + (Input[0] != 0xFFFFU ? 1 : 0);
+
+ K0 = p16 -> opta[0] * k0;
+ K1 = p16 -> opta[0] * k1;
+
+ for (OutChan=0; OutChan < p16->nOutputs; OutChan++) {
+
+ Output[OutChan] = LinearInterp(rk, LutTable[K0+OutChan], LutTable[K1+OutChan]);
+ }
+}
+
+
+
+// Eval gray LUT having only one input channel
+static
+void Eval1InputFloat(const cmsFloat32Number Value[],
+ cmsFloat32Number Output[],
+ const cmsInterpParams* p)
+{
+ cmsFloat32Number y1, y0;
+ cmsFloat32Number val2, rest;
+ int cell0, cell1;
+ cmsUInt32Number OutChan;
+ const cmsFloat32Number* LutTable = (cmsFloat32Number*) p ->Table;
+
+ val2 = fclamp(Value[0]);
+
+ // if last value...
+ if (val2 == 1.0) {
+ Output[0] = LutTable[p -> Domain[0]];
+ return;
+ }
+
+ val2 *= p -> Domain[0];
+
+ cell0 = (int) floor(val2);
+ cell1 = (int) ceil(val2);
+
+ // Rest is 16 LSB bits
+ rest = val2 - cell0;
+
+ cell0 *= p -> opta[0];
+ cell1 *= p -> opta[0];
+
+ for (OutChan=0; OutChan < p->nOutputs; OutChan++) {
+
+ y0 = LutTable[cell0 + OutChan] ;
+ y1 = LutTable[cell1 + OutChan] ;
+
+ Output[OutChan] = y0 + (y1 - y0) * rest;
+ }
+}
+
+// Bilinear interpolation (16 bits) - cmsFloat32Number version
+static
+void BilinearInterpFloat(const cmsFloat32Number Input[],
+ cmsFloat32Number Output[],
+ const cmsInterpParams* p)
+
+{
+# define LERP(a,l,h) (cmsFloat32Number) ((l)+(((h)-(l))*(a)))
+# define DENS(i,j) (LutTable[(i)+(j)+OutChan])
+
+ const cmsFloat32Number* LutTable = (cmsFloat32Number*) p ->Table;
+ cmsFloat32Number px, py;
+ int x0, y0,
+ X0, Y0, X1, Y1;
+ int TotalOut, OutChan;
+ cmsFloat32Number fx, fy,
+ d00, d01, d10, d11,
+ dx0, dx1,
+ dxy;
+
+ TotalOut = p -> nOutputs;
+ px = fclamp(Input[0]) * p->Domain[0];
+ py = fclamp(Input[1]) * p->Domain[1];
+
+ x0 = (int) _cmsQuickFloor(px); fx = px - (cmsFloat32Number) x0;
+ y0 = (int) _cmsQuickFloor(py); fy = py - (cmsFloat32Number) y0;
+
+ X0 = p -> opta[1] * x0;
+ X1 = X0 + (Input[0] >= 1.0 ? 0 : p->opta[1]);
+
+ Y0 = p -> opta[0] * y0;
+ Y1 = Y0 + (Input[1] >= 1.0 ? 0 : p->opta[0]);
+
+ for (OutChan = 0; OutChan < TotalOut; OutChan++) {
+
+ d00 = DENS(X0, Y0);
+ d01 = DENS(X0, Y1);
+ d10 = DENS(X1, Y0);
+ d11 = DENS(X1, Y1);
+
+ dx0 = LERP(fx, d00, d10);
+ dx1 = LERP(fx, d01, d11);
+
+ dxy = LERP(fy, dx0, dx1);
+
+ Output[OutChan] = dxy;
+ }
+
+
+# undef LERP
+# undef DENS
+}
+
+// Bilinear interpolation (16 bits) - optimized version
+static
+void BilinearInterp16(register const cmsUInt16Number Input[],
+ register cmsUInt16Number Output[],
+ register const cmsInterpParams* p)
+
+{
+#define DENS(i,j) (LutTable[(i)+(j)+OutChan])
+#define LERP(a,l,h) (cmsUInt16Number) (l + ROUND_FIXED_TO_INT(((h-l)*a)))
+
+ const cmsUInt16Number* LutTable = (cmsUInt16Number*) p ->Table;
+ int OutChan, TotalOut;
+ cmsS15Fixed16Number fx, fy;
+ register int rx, ry;
+ int x0, y0;
+ register int X0, X1, Y0, Y1;
+ int d00, d01, d10, d11,
+ dx0, dx1,
+ dxy;
+
+ TotalOut = p -> nOutputs;
+
+ fx = _cmsToFixedDomain((int) Input[0] * p -> Domain[0]);
+ x0 = FIXED_TO_INT(fx);
+ rx = FIXED_REST_TO_INT(fx); // Rest in 0..1.0 domain
+
+
+ fy = _cmsToFixedDomain((int) Input[1] * p -> Domain[1]);
+ y0 = FIXED_TO_INT(fy);
+ ry = FIXED_REST_TO_INT(fy);
+
+
+ X0 = p -> opta[1] * x0;
+ X1 = X0 + (Input[0] == 0xFFFFU ? 0 : p->opta[1]);
+
+ Y0 = p -> opta[0] * y0;
+ Y1 = Y0 + (Input[1] == 0xFFFFU ? 0 : p->opta[0]);
+
+ for (OutChan = 0; OutChan < TotalOut; OutChan++) {
+
+ d00 = DENS(X0, Y0);
+ d01 = DENS(X0, Y1);
+ d10 = DENS(X1, Y0);
+ d11 = DENS(X1, Y1);
+
+ dx0 = LERP(rx, d00, d10);
+ dx1 = LERP(rx, d01, d11);
+
+ dxy = LERP(ry, dx0, dx1);
+
+ Output[OutChan] = (cmsUInt16Number) dxy;
+ }
+
+
+# undef LERP
+# undef DENS
+}
+
+
+// Trilinear interpolation (16 bits) - cmsFloat32Number version
+static
+void TrilinearInterpFloat(const cmsFloat32Number Input[],
+ cmsFloat32Number Output[],
+ const cmsInterpParams* p)
+
+{
+# define LERP(a,l,h) (cmsFloat32Number) ((l)+(((h)-(l))*(a)))
+# define DENS(i,j,k) (LutTable[(i)+(j)+(k)+OutChan])
+
+ const cmsFloat32Number* LutTable = (cmsFloat32Number*) p ->Table;
+ cmsFloat32Number px, py, pz;
+ int x0, y0, z0,
+ X0, Y0, Z0, X1, Y1, Z1;
+ int TotalOut, OutChan;
+ cmsFloat32Number fx, fy, fz,
+ d000, d001, d010, d011,
+ d100, d101, d110, d111,
+ dx00, dx01, dx10, dx11,
+ dxy0, dxy1, dxyz;
+
+ TotalOut = p -> nOutputs;
+
+ // We need some clipping here
+ px = fclamp(Input[0]) * p->Domain[0];
+ py = fclamp(Input[1]) * p->Domain[1];
+ pz = fclamp(Input[2]) * p->Domain[2];
+
+ x0 = (int) _cmsQuickFloor(px); fx = px - (cmsFloat32Number) x0;
+ y0 = (int) _cmsQuickFloor(py); fy = py - (cmsFloat32Number) y0;
+ z0 = (int) _cmsQuickFloor(pz); fz = pz - (cmsFloat32Number) z0;
+
+ X0 = p -> opta[2] * x0;
+ X1 = X0 + (Input[0] >= 1.0 ? 0 : p->opta[2]);
+
+ Y0 = p -> opta[1] * y0;
+ Y1 = Y0 + (Input[1] >= 1.0 ? 0 : p->opta[1]);
+
+ Z0 = p -> opta[0] * z0;
+ Z1 = Z0 + (Input[2] >= 1.0 ? 0 : p->opta[0]);
+
+ for (OutChan = 0; OutChan < TotalOut; OutChan++) {
+
+ d000 = DENS(X0, Y0, Z0);
+ d001 = DENS(X0, Y0, Z1);
+ d010 = DENS(X0, Y1, Z0);
+ d011 = DENS(X0, Y1, Z1);
+
+ d100 = DENS(X1, Y0, Z0);
+ d101 = DENS(X1, Y0, Z1);
+ d110 = DENS(X1, Y1, Z0);
+ d111 = DENS(X1, Y1, Z1);
+
+
+ dx00 = LERP(fx, d000, d100);
+ dx01 = LERP(fx, d001, d101);
+ dx10 = LERP(fx, d010, d110);
+ dx11 = LERP(fx, d011, d111);
+
+ dxy0 = LERP(fy, dx00, dx10);
+ dxy1 = LERP(fy, dx01, dx11);
+
+ dxyz = LERP(fz, dxy0, dxy1);
+
+ Output[OutChan] = dxyz;
+ }
+
+
+# undef LERP
+# undef DENS
+}
+
+// Trilinear interpolation (16 bits) - optimized version
+static
+void TrilinearInterp16(register const cmsUInt16Number Input[],
+ register cmsUInt16Number Output[],
+ register const cmsInterpParams* p)
+
+{
+#define DENS(i,j,k) (LutTable[(i)+(j)+(k)+OutChan])
+#define LERP(a,l,h) (cmsUInt16Number) (l + ROUND_FIXED_TO_INT(((h-l)*a)))
+
+ const cmsUInt16Number* LutTable = (cmsUInt16Number*) p ->Table;
+ int OutChan, TotalOut;
+ cmsS15Fixed16Number fx, fy, fz;
+ register int rx, ry, rz;
+ int x0, y0, z0;
+ register int X0, X1, Y0, Y1, Z0, Z1;
+ int d000, d001, d010, d011,
+ d100, d101, d110, d111,
+ dx00, dx01, dx10, dx11,
+ dxy0, dxy1, dxyz;
+
+ TotalOut = p -> nOutputs;
+
+ fx = _cmsToFixedDomain((int) Input[0] * p -> Domain[0]);
+ x0 = FIXED_TO_INT(fx);
+ rx = FIXED_REST_TO_INT(fx); // Rest in 0..1.0 domain
+
+
+ fy = _cmsToFixedDomain((int) Input[1] * p -> Domain[1]);
+ y0 = FIXED_TO_INT(fy);
+ ry = FIXED_REST_TO_INT(fy);
+
+ fz = _cmsToFixedDomain((int) Input[2] * p -> Domain[2]);
+ z0 = FIXED_TO_INT(fz);
+ rz = FIXED_REST_TO_INT(fz);
+
+
+ X0 = p -> opta[2] * x0;
+ X1 = X0 + (Input[0] == 0xFFFFU ? 0 : p->opta[2]);
+
+ Y0 = p -> opta[1] * y0;
+ Y1 = Y0 + (Input[1] == 0xFFFFU ? 0 : p->opta[1]);
+
+ Z0 = p -> opta[0] * z0;
+ Z1 = Z0 + (Input[2] == 0xFFFFU ? 0 : p->opta[0]);
+
+ for (OutChan = 0; OutChan < TotalOut; OutChan++) {
+
+ d000 = DENS(X0, Y0, Z0);
+ d001 = DENS(X0, Y0, Z1);
+ d010 = DENS(X0, Y1, Z0);
+ d011 = DENS(X0, Y1, Z1);
+
+ d100 = DENS(X1, Y0, Z0);
+ d101 = DENS(X1, Y0, Z1);
+ d110 = DENS(X1, Y1, Z0);
+ d111 = DENS(X1, Y1, Z1);
+
+
+ dx00 = LERP(rx, d000, d100);
+ dx01 = LERP(rx, d001, d101);
+ dx10 = LERP(rx, d010, d110);
+ dx11 = LERP(rx, d011, d111);
+
+ dxy0 = LERP(ry, dx00, dx10);
+ dxy1 = LERP(ry, dx01, dx11);
+
+ dxyz = LERP(rz, dxy0, dxy1);
+
+ Output[OutChan] = (cmsUInt16Number) dxyz;
+ }
+
+
+# undef LERP
+# undef DENS
+}
+
+
+// Tetrahedral interpolation, using Sakamoto algorithm.
+#define DENS(i,j,k) (LutTable[(i)+(j)+(k)+OutChan])
+static
+void TetrahedralInterpFloat(const cmsFloat32Number Input[],
+ cmsFloat32Number Output[],
+ const cmsInterpParams* p)
+{
+ const cmsFloat32Number* LutTable = (cmsFloat32Number*) p -> Table;
+ cmsFloat32Number px, py, pz;
+ int x0, y0, z0,
+ X0, Y0, Z0, X1, Y1, Z1;
+ cmsFloat32Number rx, ry, rz;
+ cmsFloat32Number c0, c1=0, c2=0, c3=0;
+ int OutChan, TotalOut;
+
+ TotalOut = p -> nOutputs;
+
+ // We need some clipping here
+ px = fclamp(Input[0]) * p->Domain[0];
+ py = fclamp(Input[1]) * p->Domain[1];
+ pz = fclamp(Input[2]) * p->Domain[2];
+
+ x0 = (int) _cmsQuickFloor(px); rx = (px - (cmsFloat32Number) x0);
+ y0 = (int) _cmsQuickFloor(py); ry = (py - (cmsFloat32Number) y0);
+ z0 = (int) _cmsQuickFloor(pz); rz = (pz - (cmsFloat32Number) z0);
+
+
+ X0 = p -> opta[2] * x0;
+ X1 = X0 + (Input[0] >= 1.0 ? 0 : p->opta[2]);
+
+ Y0 = p -> opta[1] * y0;
+ Y1 = Y0 + (Input[1] >= 1.0 ? 0 : p->opta[1]);
+
+ Z0 = p -> opta[0] * z0;
+ Z1 = Z0 + (Input[2] >= 1.0 ? 0 : p->opta[0]);
+
+ for (OutChan=0; OutChan < TotalOut; OutChan++) {
+
+ // These are the 6 Tetrahedral
+
+ c0 = DENS(X0, Y0, Z0);
+
+ if (rx >= ry && ry >= rz) {
+
+ c1 = DENS(X1, Y0, Z0) - c0;
+ c2 = DENS(X1, Y1, Z0) - DENS(X1, Y0, Z0);
+ c3 = DENS(X1, Y1, Z1) - DENS(X1, Y1, Z0);
+
+ }
+ else
+ if (rx >= rz && rz >= ry) {
+
+ c1 = DENS(X1, Y0, Z0) - c0;
+ c2 = DENS(X1, Y1, Z1) - DENS(X1, Y0, Z1);
+ c3 = DENS(X1, Y0, Z1) - DENS(X1, Y0, Z0);
+
+ }
+ else
+ if (rz >= rx && rx >= ry) {
+
+ c1 = DENS(X1, Y0, Z1) - DENS(X0, Y0, Z1);
+ c2 = DENS(X1, Y1, Z1) - DENS(X1, Y0, Z1);
+ c3 = DENS(X0, Y0, Z1) - c0;
+
+ }
+ else
+ if (ry >= rx && rx >= rz) {
+
+ c1 = DENS(X1, Y1, Z0) - DENS(X0, Y1, Z0);
+ c2 = DENS(X0, Y1, Z0) - c0;
+ c3 = DENS(X1, Y1, Z1) - DENS(X1, Y1, Z0);
+
+ }
+ else
+ if (ry >= rz && rz >= rx) {
+
+ c1 = DENS(X1, Y1, Z1) - DENS(X0, Y1, Z1);
+ c2 = DENS(X0, Y1, Z0) - c0;
+ c3 = DENS(X0, Y1, Z1) - DENS(X0, Y1, Z0);
+
+ }
+ else
+ if (rz >= ry && ry >= rx) {
+
+ c1 = DENS(X1, Y1, Z1) - DENS(X0, Y1, Z1);
+ c2 = DENS(X0, Y1, Z1) - DENS(X0, Y0, Z1);
+ c3 = DENS(X0, Y0, Z1) - c0;
+
+ }
+ else {
+ c1 = c2 = c3 = 0;
+ }
+
+ Output[OutChan] = c0 + c1 * rx + c2 * ry + c3 * rz;
+ }
+
+}
+
+#undef DENS
+
+
+
+
+static
+void TetrahedralInterp16(register const cmsUInt16Number Input[],
+ register cmsUInt16Number Output[],
+ register const cmsInterpParams* p)
+{
+ const cmsUInt16Number* LutTable = (cmsUInt16Number*) p -> Table;
+ cmsS15Fixed16Number fx, fy, fz;
+ cmsS15Fixed16Number rx, ry, rz;
+ int x0, y0, z0;
+ cmsS15Fixed16Number c0, c1, c2, c3, Rest;
+ cmsS15Fixed16Number X0, X1, Y0, Y1, Z0, Z1;
+ cmsUInt32Number TotalOut = p -> nOutputs;
+
+ fx = _cmsToFixedDomain((int) Input[0] * p -> Domain[0]);
+ fy = _cmsToFixedDomain((int) Input[1] * p -> Domain[1]);
+ fz = _cmsToFixedDomain((int) Input[2] * p -> Domain[2]);
+
+ x0 = FIXED_TO_INT(fx);
+ y0 = FIXED_TO_INT(fy);
+ z0 = FIXED_TO_INT(fz);
+
+ rx = FIXED_REST_TO_INT(fx);
+ ry = FIXED_REST_TO_INT(fy);
+ rz = FIXED_REST_TO_INT(fz);
+
+ X0 = p -> opta[2] * x0;
+ X1 = (Input[0] == 0xFFFFU ? 0 : p->opta[2]);
+
+ Y0 = p -> opta[1] * y0;
+ Y1 = (Input[1] == 0xFFFFU ? 0 : p->opta[1]);
+
+ Z0 = p -> opta[0] * z0;
+ Z1 = (Input[2] == 0xFFFFU ? 0 : p->opta[0]);
+
+ LutTable = &LutTable[X0+Y0+Z0];
+
+ // Output should be computed as x = ROUND_FIXED_TO_INT(_cmsToFixedDomain(Rest))
+ // which expands as: x = (Rest + ((Rest+0x7fff)/0xFFFF) + 0x8000)>>16
+ // This can be replaced by: t = Rest+0x8001, x = (t + (t>>16))>>16
+ // at the cost of being off by one at 7fff and 17ffe.
+
+ if (rx >= ry) {
+ if (ry >= rz) {
+ Y1 += X1;
+ Z1 += Y1;
+ for (; TotalOut; TotalOut--) {
+ c1 = LutTable[X1];
+ c2 = LutTable[Y1];
+ c3 = LutTable[Z1];
+ c0 = *LutTable++;
+ c3 -= c2;
+ c2 -= c1;
+ c1 -= c0;
+ Rest = c1 * rx + c2 * ry + c3 * rz + 0x8001;
+ *Output++ = (cmsUInt16Number) c0 + ((Rest + (Rest>>16))>>16);
+ }
+ } else if (rz >= rx) {
+ X1 += Z1;
+ Y1 += X1;
+ for (; TotalOut; TotalOut--) {
+ c1 = LutTable[X1];
+ c2 = LutTable[Y1];
+ c3 = LutTable[Z1];
+ c0 = *LutTable++;
+ c2 -= c1;
+ c1 -= c3;
+ c3 -= c0;
+ Rest = c1 * rx + c2 * ry + c3 * rz + 0x8001;
+ *Output++ = (cmsUInt16Number) c0 + ((Rest + (Rest>>16))>>16);
+ }
+ } else {
+ Z1 += X1;
+ Y1 += Z1;
+ for (; TotalOut; TotalOut--) {
+ c1 = LutTable[X1];
+ c2 = LutTable[Y1];
+ c3 = LutTable[Z1];
+ c0 = *LutTable++;
+ c2 -= c3;
+ c3 -= c1;
+ c1 -= c0;
+ Rest = c1 * rx + c2 * ry + c3 * rz + 0x8001;
+ *Output++ = (cmsUInt16Number) c0 + ((Rest + (Rest>>16))>>16);
+ }
+ }
+ } else {
+ if (rx >= rz) {
+ X1 += Y1;
+ Z1 += X1;
+ for (; TotalOut; TotalOut--) {
+ c1 = LutTable[X1];
+ c2 = LutTable[Y1];
+ c3 = LutTable[Z1];
+ c0 = *LutTable++;
+ c3 -= c1;
+ c1 -= c2;
+ c2 -= c0;
+ Rest = c1 * rx + c2 * ry + c3 * rz + 0x8001;
+ *Output++ = (cmsUInt16Number) c0 + ((Rest + (Rest>>16))>>16);
+ }
+ } else if (ry >= rz) {
+ Z1 += Y1;
+ X1 += Z1;
+ for (; TotalOut; TotalOut--) {
+ c1 = LutTable[X1];
+ c2 = LutTable[Y1];
+ c3 = LutTable[Z1];
+ c0 = *LutTable++;
+ c1 -= c3;
+ c3 -= c2;
+ c2 -= c0;
+ Rest = c1 * rx + c2 * ry + c3 * rz + 0x8001;
+ *Output++ = (cmsUInt16Number) c0 + ((Rest + (Rest>>16))>>16);
+ }
+ } else {
+ Y1 += Z1;
+ X1 += Y1;
+ for (; TotalOut; TotalOut--) {
+ c1 = LutTable[X1];
+ c2 = LutTable[Y1];
+ c3 = LutTable[Z1];
+ c0 = *LutTable++;
+ c1 -= c2;
+ c2 -= c3;
+ c3 -= c0;
+ Rest = c1 * rx + c2 * ry + c3 * rz + 0x8001;
+ *Output++ = (cmsUInt16Number) c0 + ((Rest + (Rest>>16))>>16);
+ }
+ }
+ }
+}
+
+
+#define DENS(i,j,k) (LutTable[(i)+(j)+(k)+OutChan])
+static
+void Eval4Inputs(register const cmsUInt16Number Input[],
+ register cmsUInt16Number Output[],
+ register const cmsInterpParams* p16)
+{
+ const cmsUInt16Number* LutTable;
+ cmsS15Fixed16Number fk;
+ cmsS15Fixed16Number k0, rk;
+ int K0, K1;
+ cmsS15Fixed16Number fx, fy, fz;
+ cmsS15Fixed16Number rx, ry, rz;
+ int x0, y0, z0;
+ cmsS15Fixed16Number X0, X1, Y0, Y1, Z0, Z1;
+ cmsUInt32Number i;
+ cmsS15Fixed16Number c0, c1, c2, c3, Rest;
+ cmsUInt32Number OutChan;
+ cmsUInt16Number Tmp1[MAX_STAGE_CHANNELS], Tmp2[MAX_STAGE_CHANNELS];
+
+
+ fk = _cmsToFixedDomain((int) Input[0] * p16 -> Domain[0]);
+ fx = _cmsToFixedDomain((int) Input[1] * p16 -> Domain[1]);
+ fy = _cmsToFixedDomain((int) Input[2] * p16 -> Domain[2]);
+ fz = _cmsToFixedDomain((int) Input[3] * p16 -> Domain[3]);
+
+ k0 = FIXED_TO_INT(fk);
+ x0 = FIXED_TO_INT(fx);
+ y0 = FIXED_TO_INT(fy);
+ z0 = FIXED_TO_INT(fz);
+
+ rk = FIXED_REST_TO_INT(fk);
+ rx = FIXED_REST_TO_INT(fx);
+ ry = FIXED_REST_TO_INT(fy);
+ rz = FIXED_REST_TO_INT(fz);
+
+ K0 = p16 -> opta[3] * k0;
+ K1 = K0 + (Input[0] == 0xFFFFU ? 0 : p16->opta[3]);
+
+ X0 = p16 -> opta[2] * x0;
+ X1 = X0 + (Input[1] == 0xFFFFU ? 0 : p16->opta[2]);
+
+ Y0 = p16 -> opta[1] * y0;
+ Y1 = Y0 + (Input[2] == 0xFFFFU ? 0 : p16->opta[1]);
+
+ Z0 = p16 -> opta[0] * z0;
+ Z1 = Z0 + (Input[3] == 0xFFFFU ? 0 : p16->opta[0]);
+
+ LutTable = (cmsUInt16Number*) p16 -> Table;
+ LutTable += K0;
+
+ for (OutChan=0; OutChan < p16 -> nOutputs; OutChan++) {
+
+ c0 = DENS(X0, Y0, Z0);
+
+ if (rx >= ry && ry >= rz) {
+
+ c1 = DENS(X1, Y0, Z0) - c0;
+ c2 = DENS(X1, Y1, Z0) - DENS(X1, Y0, Z0);
+ c3 = DENS(X1, Y1, Z1) - DENS(X1, Y1, Z0);
+
+ }
+ else
+ if (rx >= rz && rz >= ry) {
+
+ c1 = DENS(X1, Y0, Z0) - c0;
+ c2 = DENS(X1, Y1, Z1) - DENS(X1, Y0, Z1);
+ c3 = DENS(X1, Y0, Z1) - DENS(X1, Y0, Z0);
+
+ }
+ else
+ if (rz >= rx && rx >= ry) {
+
+ c1 = DENS(X1, Y0, Z1) - DENS(X0, Y0, Z1);
+ c2 = DENS(X1, Y1, Z1) - DENS(X1, Y0, Z1);
+ c3 = DENS(X0, Y0, Z1) - c0;
+
+ }
+ else
+ if (ry >= rx && rx >= rz) {
+
+ c1 = DENS(X1, Y1, Z0) - DENS(X0, Y1, Z0);
+ c2 = DENS(X0, Y1, Z0) - c0;
+ c3 = DENS(X1, Y1, Z1) - DENS(X1, Y1, Z0);
+
+ }
+ else
+ if (ry >= rz && rz >= rx) {
+
+ c1 = DENS(X1, Y1, Z1) - DENS(X0, Y1, Z1);
+ c2 = DENS(X0, Y1, Z0) - c0;
+ c3 = DENS(X0, Y1, Z1) - DENS(X0, Y1, Z0);
+
+ }
+ else
+ if (rz >= ry && ry >= rx) {
+
+ c1 = DENS(X1, Y1, Z1) - DENS(X0, Y1, Z1);
+ c2 = DENS(X0, Y1, Z1) - DENS(X0, Y0, Z1);
+ c3 = DENS(X0, Y0, Z1) - c0;
+
+ }
+ else {
+ c1 = c2 = c3 = 0;
+ }
+
+ Rest = c1 * rx + c2 * ry + c3 * rz;
+
+ Tmp1[OutChan] = (cmsUInt16Number) c0 + ROUND_FIXED_TO_INT(_cmsToFixedDomain(Rest));
+ }
+
+
+ LutTable = (cmsUInt16Number*) p16 -> Table;
+ LutTable += K1;
+
+ for (OutChan=0; OutChan < p16 -> nOutputs; OutChan++) {
+
+ c0 = DENS(X0, Y0, Z0);
+
+ if (rx >= ry && ry >= rz) {
+
+ c1 = DENS(X1, Y0, Z0) - c0;
+ c2 = DENS(X1, Y1, Z0) - DENS(X1, Y0, Z0);
+ c3 = DENS(X1, Y1, Z1) - DENS(X1, Y1, Z0);
+
+ }
+ else
+ if (rx >= rz && rz >= ry) {
+
+ c1 = DENS(X1, Y0, Z0) - c0;
+ c2 = DENS(X1, Y1, Z1) - DENS(X1, Y0, Z1);
+ c3 = DENS(X1, Y0, Z1) - DENS(X1, Y0, Z0);
+
+ }
+ else
+ if (rz >= rx && rx >= ry) {
+
+ c1 = DENS(X1, Y0, Z1) - DENS(X0, Y0, Z1);
+ c2 = DENS(X1, Y1, Z1) - DENS(X1, Y0, Z1);
+ c3 = DENS(X0, Y0, Z1) - c0;
+
+ }
+ else
+ if (ry >= rx && rx >= rz) {
+
+ c1 = DENS(X1, Y1, Z0) - DENS(X0, Y1, Z0);
+ c2 = DENS(X0, Y1, Z0) - c0;
+ c3 = DENS(X1, Y1, Z1) - DENS(X1, Y1, Z0);
+
+ }
+ else
+ if (ry >= rz && rz >= rx) {
+
+ c1 = DENS(X1, Y1, Z1) - DENS(X0, Y1, Z1);
+ c2 = DENS(X0, Y1, Z0) - c0;
+ c3 = DENS(X0, Y1, Z1) - DENS(X0, Y1, Z0);
+
+ }
+ else
+ if (rz >= ry && ry >= rx) {
+
+ c1 = DENS(X1, Y1, Z1) - DENS(X0, Y1, Z1);
+ c2 = DENS(X0, Y1, Z1) - DENS(X0, Y0, Z1);
+ c3 = DENS(X0, Y0, Z1) - c0;
+
+ }
+ else {
+ c1 = c2 = c3 = 0;
+ }
+
+ Rest = c1 * rx + c2 * ry + c3 * rz;
+
+ Tmp2[OutChan] = (cmsUInt16Number) c0 + ROUND_FIXED_TO_INT(_cmsToFixedDomain(Rest));
+ }
+
+
+
+ for (i=0; i < p16 -> nOutputs; i++) {
+ Output[i] = LinearInterp(rk, Tmp1[i], Tmp2[i]);
+ }
+}
+#undef DENS
+
+
+// For more that 3 inputs (i.e., CMYK)
+// evaluate two 3-dimensional interpolations and then linearly interpolate between them.
+
+
+static
+void Eval4InputsFloat(const cmsFloat32Number Input[],
+ cmsFloat32Number Output[],
+ const cmsInterpParams* p)
+{
+ const cmsFloat32Number* LutTable = (cmsFloat32Number*) p -> Table;
+ cmsFloat32Number rest;
+ cmsFloat32Number pk;
+ int k0, K0, K1;
+ const cmsFloat32Number* T;
+ cmsUInt32Number i;
+ cmsFloat32Number Tmp1[MAX_STAGE_CHANNELS], Tmp2[MAX_STAGE_CHANNELS];
+ cmsInterpParams p1;
+
+ pk = fclamp(Input[0]) * p->Domain[0];
+ k0 = _cmsQuickFloor(pk);
+ rest = pk - (cmsFloat32Number) k0;
+
+ K0 = p -> opta[3] * k0;
+ K1 = K0 + (Input[0] >= 1.0 ? 0 : p->opta[3]);
+
+ p1 = *p;
+ memmove(&p1.Domain[0], &p ->Domain[1], 3*sizeof(cmsUInt32Number));
+
+ T = LutTable + K0;
+ p1.Table = T;
+
+ TetrahedralInterpFloat(Input + 1, Tmp1, &p1);
+
+ T = LutTable + K1;
+ p1.Table = T;
+ TetrahedralInterpFloat(Input + 1, Tmp2, &p1);
+
+ for (i=0; i < p -> nOutputs; i++)
+ {
+ cmsFloat32Number y0 = Tmp1[i];
+ cmsFloat32Number y1 = Tmp2[i];
+
+ Output[i] = y0 + (y1 - y0) * rest;
+ }
+}
+
+
+static
+void Eval5Inputs(register const cmsUInt16Number Input[],
+ register cmsUInt16Number Output[],
+
+ register const cmsInterpParams* p16)
+{
+ const cmsUInt16Number* LutTable = (cmsUInt16Number*) p16 -> Table;
+ cmsS15Fixed16Number fk;
+ cmsS15Fixed16Number k0, rk;
+ int K0, K1;
+ const cmsUInt16Number* T;
+ cmsUInt32Number i;
+ cmsUInt16Number Tmp1[MAX_STAGE_CHANNELS], Tmp2[MAX_STAGE_CHANNELS];
+ cmsInterpParams p1;
+
+
+ fk = _cmsToFixedDomain((cmsS15Fixed16Number) Input[0] * p16 -> Domain[0]);
+ k0 = FIXED_TO_INT(fk);
+ rk = FIXED_REST_TO_INT(fk);
+
+ K0 = p16 -> opta[4] * k0;
+ K1 = p16 -> opta[4] * (k0 + (Input[0] != 0xFFFFU ? 1 : 0));
+
+ p1 = *p16;
+ memmove(&p1.Domain[0], &p16 ->Domain[1], 4*sizeof(cmsUInt32Number));
+
+ T = LutTable + K0;
+ p1.Table = T;
+
+ Eval4Inputs(Input + 1, Tmp1, &p1);
+
+ T = LutTable + K1;
+ p1.Table = T;
+
+ Eval4Inputs(Input + 1, Tmp2, &p1);
+
+ for (i=0; i < p16 -> nOutputs; i++) {
+
+ Output[i] = LinearInterp(rk, Tmp1[i], Tmp2[i]);
+ }
+
+}
+
+
+static
+void Eval5InputsFloat(const cmsFloat32Number Input[],
+ cmsFloat32Number Output[],
+ const cmsInterpParams* p)
+{
+ const cmsFloat32Number* LutTable = (cmsFloat32Number*) p -> Table;
+ cmsFloat32Number rest;
+ cmsFloat32Number pk;
+ int k0, K0, K1;
+ const cmsFloat32Number* T;
+ cmsUInt32Number i;
+ cmsFloat32Number Tmp1[MAX_STAGE_CHANNELS], Tmp2[MAX_STAGE_CHANNELS];
+ cmsInterpParams p1;
+
+ pk = fclamp(Input[0]) * p->Domain[0];
+ k0 = _cmsQuickFloor(pk);
+ rest = pk - (cmsFloat32Number) k0;
+
+ K0 = p -> opta[4] * k0;
+ K1 = K0 + (Input[0] >= 1.0 ? 0 : p->opta[4]);
+
+ p1 = *p;
+ memmove(&p1.Domain[0], &p ->Domain[1], 4*sizeof(cmsUInt32Number));
+
+ T = LutTable + K0;
+ p1.Table = T;
+
+ Eval4InputsFloat(Input + 1, Tmp1, &p1);
+
+ T = LutTable + K1;
+ p1.Table = T;
+
+ Eval4InputsFloat(Input + 1, Tmp2, &p1);
+
+ for (i=0; i < p -> nOutputs; i++) {
+
+ cmsFloat32Number y0 = Tmp1[i];
+ cmsFloat32Number y1 = Tmp2[i];
+
+ Output[i] = y0 + (y1 - y0) * rest;
+ }
+}
+
+
+
+static
+void Eval6Inputs(register const cmsUInt16Number Input[],
+ register cmsUInt16Number Output[],
+ register const cmsInterpParams* p16)
+{
+ const cmsUInt16Number* LutTable = (cmsUInt16Number*) p16 -> Table;
+ cmsS15Fixed16Number fk;
+ cmsS15Fixed16Number k0, rk;
+ int K0, K1;
+ const cmsUInt16Number* T;
+ cmsUInt32Number i;
+ cmsUInt16Number Tmp1[MAX_STAGE_CHANNELS], Tmp2[MAX_STAGE_CHANNELS];
+ cmsInterpParams p1;
+
+ fk = _cmsToFixedDomain((cmsS15Fixed16Number) Input[0] * p16 -> Domain[0]);
+ k0 = FIXED_TO_INT(fk);
+ rk = FIXED_REST_TO_INT(fk);
+
+ K0 = p16 -> opta[5] * k0;
+ K1 = p16 -> opta[5] * (k0 + (Input[0] != 0xFFFFU ? 1 : 0));
+
+ p1 = *p16;
+ memmove(&p1.Domain[0], &p16 ->Domain[1], 5*sizeof(cmsUInt32Number));
+
+ T = LutTable + K0;
+ p1.Table = T;
+
+ Eval5Inputs(Input + 1, Tmp1, &p1);
+
+ T = LutTable + K1;
+ p1.Table = T;
+
+ Eval5Inputs(Input + 1, Tmp2, &p1);
+
+ for (i=0; i < p16 -> nOutputs; i++) {
+
+ Output[i] = LinearInterp(rk, Tmp1[i], Tmp2[i]);
+ }
+
+}
+
+
+static
+void Eval6InputsFloat(const cmsFloat32Number Input[],
+ cmsFloat32Number Output[],
+ const cmsInterpParams* p)
+{
+ const cmsFloat32Number* LutTable = (cmsFloat32Number*) p -> Table;
+ cmsFloat32Number rest;
+ cmsFloat32Number pk;
+ int k0, K0, K1;
+ const cmsFloat32Number* T;
+ cmsUInt32Number i;
+ cmsFloat32Number Tmp1[MAX_STAGE_CHANNELS], Tmp2[MAX_STAGE_CHANNELS];
+ cmsInterpParams p1;
+
+ pk = fclamp(Input[0]) * p->Domain[0];
+ k0 = _cmsQuickFloor(pk);
+ rest = pk - (cmsFloat32Number) k0;
+
+ K0 = p -> opta[5] * k0;
+ K1 = K0 + (Input[0] >= 1.0 ? 0 : p->opta[5]);
+
+ p1 = *p;
+ memmove(&p1.Domain[0], &p ->Domain[1], 5*sizeof(cmsUInt32Number));
+
+ T = LutTable + K0;
+ p1.Table = T;
+
+ Eval5InputsFloat(Input + 1, Tmp1, &p1);
+
+ T = LutTable + K1;
+ p1.Table = T;
+
+ Eval5InputsFloat(Input + 1, Tmp2, &p1);
+
+ for (i=0; i < p -> nOutputs; i++) {
+
+ cmsFloat32Number y0 = Tmp1[i];
+ cmsFloat32Number y1 = Tmp2[i];
+
+ Output[i] = y0 + (y1 - y0) * rest;
+ }
+}
+
+
+static
+void Eval7Inputs(register const cmsUInt16Number Input[],
+ register cmsUInt16Number Output[],
+ register const cmsInterpParams* p16)
+{
+ const cmsUInt16Number* LutTable = (cmsUInt16Number*) p16 -> Table;
+ cmsS15Fixed16Number fk;
+ cmsS15Fixed16Number k0, rk;
+ int K0, K1;
+ const cmsUInt16Number* T;
+ cmsUInt32Number i;
+ cmsUInt16Number Tmp1[MAX_STAGE_CHANNELS], Tmp2[MAX_STAGE_CHANNELS];
+ cmsInterpParams p1;
+
+
+ fk = _cmsToFixedDomain((cmsS15Fixed16Number) Input[0] * p16 -> Domain[0]);
+ k0 = FIXED_TO_INT(fk);
+ rk = FIXED_REST_TO_INT(fk);
+
+ K0 = p16 -> opta[6] * k0;
+ K1 = p16 -> opta[6] * (k0 + (Input[0] != 0xFFFFU ? 1 : 0));
+
+ p1 = *p16;
+ memmove(&p1.Domain[0], &p16 ->Domain[1], 6*sizeof(cmsUInt32Number));
+
+ T = LutTable + K0;
+ p1.Table = T;
+
+ Eval6Inputs(Input + 1, Tmp1, &p1);
+
+ T = LutTable + K1;
+ p1.Table = T;
+
+ Eval6Inputs(Input + 1, Tmp2, &p1);
+
+ for (i=0; i < p16 -> nOutputs; i++) {
+ Output[i] = LinearInterp(rk, Tmp1[i], Tmp2[i]);
+ }
+}
+
+
+static
+void Eval7InputsFloat(const cmsFloat32Number Input[],
+ cmsFloat32Number Output[],
+ const cmsInterpParams* p)
+{
+ const cmsFloat32Number* LutTable = (cmsFloat32Number*) p -> Table;
+ cmsFloat32Number rest;
+ cmsFloat32Number pk;
+ int k0, K0, K1;
+ const cmsFloat32Number* T;
+ cmsUInt32Number i;
+ cmsFloat32Number Tmp1[MAX_STAGE_CHANNELS], Tmp2[MAX_STAGE_CHANNELS];
+ cmsInterpParams p1;
+
+ pk = fclamp(Input[0]) * p->Domain[0];
+ k0 = _cmsQuickFloor(pk);
+ rest = pk - (cmsFloat32Number) k0;
+
+ K0 = p -> opta[6] * k0;
+ K1 = K0 + (Input[0] >= 1.0 ? 0 : p->opta[6]);
+
+ p1 = *p;
+ memmove(&p1.Domain[0], &p ->Domain[1], 6*sizeof(cmsUInt32Number));
+
+ T = LutTable + K0;
+ p1.Table = T;
+
+ Eval6InputsFloat(Input + 1, Tmp1, &p1);
+
+ T = LutTable + K1;
+ p1.Table = T;
+
+ Eval6InputsFloat(Input + 1, Tmp2, &p1);
+
+
+ for (i=0; i < p -> nOutputs; i++) {
+
+ cmsFloat32Number y0 = Tmp1[i];
+ cmsFloat32Number y1 = Tmp2[i];
+
+ Output[i] = y0 + (y1 - y0) * rest;
+
+ }
+}
+
+static
+void Eval8Inputs(register const cmsUInt16Number Input[],
+ register cmsUInt16Number Output[],
+ register const cmsInterpParams* p16)
+{
+ const cmsUInt16Number* LutTable = (cmsUInt16Number*) p16 -> Table;
+ cmsS15Fixed16Number fk;
+ cmsS15Fixed16Number k0, rk;
+ int K0, K1;
+ const cmsUInt16Number* T;
+ cmsUInt32Number i;
+ cmsUInt16Number Tmp1[MAX_STAGE_CHANNELS], Tmp2[MAX_STAGE_CHANNELS];
+ cmsInterpParams p1;
+
+ fk = _cmsToFixedDomain((cmsS15Fixed16Number) Input[0] * p16 -> Domain[0]);
+ k0 = FIXED_TO_INT(fk);
+ rk = FIXED_REST_TO_INT(fk);
+
+ K0 = p16 -> opta[7] * k0;
+ K1 = p16 -> opta[7] * (k0 + (Input[0] != 0xFFFFU ? 1 : 0));
+
+ p1 = *p16;
+ memmove(&p1.Domain[0], &p16 ->Domain[1], 7*sizeof(cmsUInt32Number));
+
+ T = LutTable + K0;
+ p1.Table = T;
+
+ Eval7Inputs(Input + 1, Tmp1, &p1);
+
+ T = LutTable + K1;
+ p1.Table = T;
+ Eval7Inputs(Input + 1, Tmp2, &p1);
+
+ for (i=0; i < p16 -> nOutputs; i++) {
+ Output[i] = LinearInterp(rk, Tmp1[i], Tmp2[i]);
+ }
+}
+
+
+
+static
+void Eval8InputsFloat(const cmsFloat32Number Input[],
+ cmsFloat32Number Output[],
+ const cmsInterpParams* p)
+{
+ const cmsFloat32Number* LutTable = (cmsFloat32Number*) p -> Table;
+ cmsFloat32Number rest;
+ cmsFloat32Number pk;
+ int k0, K0, K1;
+ const cmsFloat32Number* T;
+ cmsUInt32Number i;
+ cmsFloat32Number Tmp1[MAX_STAGE_CHANNELS], Tmp2[MAX_STAGE_CHANNELS];
+ cmsInterpParams p1;
+
+ pk = fclamp(Input[0]) * p->Domain[0];
+ k0 = _cmsQuickFloor(pk);
+ rest = pk - (cmsFloat32Number) k0;
+
+ K0 = p -> opta[7] * k0;
+ K1 = K0 + (Input[0] >= 1.0 ? 0 : p->opta[7]);
+
+ p1 = *p;
+ memmove(&p1.Domain[0], &p ->Domain[1], 7*sizeof(cmsUInt32Number));
+
+ T = LutTable + K0;
+ p1.Table = T;
+
+ Eval7InputsFloat(Input + 1, Tmp1, &p1);
+
+ T = LutTable + K1;
+ p1.Table = T;
+
+ Eval7InputsFloat(Input + 1, Tmp2, &p1);
+
+
+ for (i=0; i < p -> nOutputs; i++) {
+
+ cmsFloat32Number y0 = Tmp1[i];
+ cmsFloat32Number y1 = Tmp2[i];
+
+ Output[i] = y0 + (y1 - y0) * rest;
+ }
+}
+
+// The default factory
+static
+cmsInterpFunction DefaultInterpolatorsFactory(cmsUInt32Number nInputChannels, cmsUInt32Number nOutputChannels, cmsUInt32Number dwFlags)
+{
+
+ cmsInterpFunction Interpolation;
+ cmsBool IsFloat = (dwFlags & CMS_LERP_FLAGS_FLOAT);
+ cmsBool IsTrilinear = (dwFlags & CMS_LERP_FLAGS_TRILINEAR);
+
+ memset(&Interpolation, 0, sizeof(Interpolation));
+
+ // Safety check
+ if (nInputChannels >= 4 && nOutputChannels >= MAX_STAGE_CHANNELS)
+ return Interpolation;
+
+ switch (nInputChannels) {
+
+ case 1: // Gray LUT / linear
+
+ if (nOutputChannels == 1) {
+
+ if (IsFloat)
+ Interpolation.LerpFloat = LinLerp1Dfloat;
+ else
+ Interpolation.Lerp16 = LinLerp1D;
+
+ }
+ else {
+
+ if (IsFloat)
+ Interpolation.LerpFloat = Eval1InputFloat;
+ else
+ Interpolation.Lerp16 = Eval1Input;
+ }
+ break;
+
+ case 2: // Duotone
+ if (IsFloat)
+ Interpolation.LerpFloat = BilinearInterpFloat;
+ else
+ Interpolation.Lerp16 = BilinearInterp16;
+ break;
+
+ case 3: // RGB et al
+
+ if (IsTrilinear) {
+
+ if (IsFloat)
+ Interpolation.LerpFloat = TrilinearInterpFloat;
+ else
+ Interpolation.Lerp16 = TrilinearInterp16;
+ }
+ else {
+
+ if (IsFloat)
+ Interpolation.LerpFloat = TetrahedralInterpFloat;
+ else {
+
+ Interpolation.Lerp16 = TetrahedralInterp16;
+ }
+ }
+ break;
+
+ case 4: // CMYK lut
+
+ if (IsFloat)
+ Interpolation.LerpFloat = Eval4InputsFloat;
+ else
+ Interpolation.Lerp16 = Eval4Inputs;
+ break;
+
+ case 5: // 5 Inks
+ if (IsFloat)
+ Interpolation.LerpFloat = Eval5InputsFloat;
+ else
+ Interpolation.Lerp16 = Eval5Inputs;
+ break;
+
+ case 6: // 6 Inks
+ if (IsFloat)
+ Interpolation.LerpFloat = Eval6InputsFloat;
+ else
+ Interpolation.Lerp16 = Eval6Inputs;
+ break;
+
+ case 7: // 7 inks
+ if (IsFloat)
+ Interpolation.LerpFloat = Eval7InputsFloat;
+ else
+ Interpolation.Lerp16 = Eval7Inputs;
+ break;
+
+ case 8: // 8 inks
+ if (IsFloat)
+ Interpolation.LerpFloat = Eval8InputsFloat;
+ else
+ Interpolation.Lerp16 = Eval8Inputs;
+ break;
+
+ break;
+
+ default:
+ Interpolation.Lerp16 = NULL;
+ }
+
+ return Interpolation;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 03:56:14 +0000