| //--------------------------------------------------------------------------------- |
| // |
| // Little Color Management System |
| // Copyright (c) 1998-2023 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 |
| |
| // Some people may want to compile as C++ with all warnings on, in this case make compiler silent |
| #ifdef _MSC_VER |
| # if (_MSC_VER >= 1400) |
| # pragma warning( disable : 4365 ) |
| # endif |
| #endif |
| |
| // 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[], |
| cmsUInt32Number InputChan, cmsUInt32Number OutputChan, |
| const void *Table, |
| cmsUInt32Number dwFlags) |
| { |
| cmsInterpParams* p; |
| cmsUInt32Number 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* CMSEXPORT _cmsComputeInterpParams(cmsContext ContextID, cmsUInt32Number nSamples, |
| cmsUInt32Number InputChan, cmsUInt32Number OutputChan, const void* Table, cmsUInt32Number dwFlags) |
| { |
| int i; |
| cmsUInt32Number Samples[MAX_INPUT_DIMENSIONS]; |
| |
| // Fill the auxiliary 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 CMSEXPORT _cmsFreeInterpParams(cmsInterpParams* p) |
| { |
| if (p != NULL) _cmsFree(p ->ContextID, p); |
| } |
| |
| |
| // Inline fixed point interpolation |
| cmsINLINE CMS_NO_SANITIZE 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(CMSREGISTER const cmsUInt16Number Value[], |
| CMSREGISTER cmsUInt16Number Output[], |
| CMSREGISTER const cmsInterpParams* p) |
| { |
| cmsUInt16Number y1, y0; |
| int cell0, rest; |
| int val3; |
| const cmsUInt16Number* LutTable = (cmsUInt16Number*) p ->Table; |
| |
| // if last value or just one point |
| if (Value[0] == 0xffff || p->Domain[0] == 0) { |
| |
| Output[0] = LutTable[p -> Domain[0]]; |
| } |
| else |
| { |
| 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 < 1.0e-9f) || 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 || p->Domain[0] == 0) { |
| Output[0] = LutTable[p -> Domain[0]]; |
| } |
| else |
| { |
| 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 CMS_NO_SANITIZE |
| void Eval1Input(CMSREGISTER const cmsUInt16Number Input[], |
| CMSREGISTER cmsUInt16Number Output[], |
| CMSREGISTER const cmsInterpParams* p16) |
| { |
| cmsS15Fixed16Number fk; |
| cmsS15Fixed16Number k0, k1, rk, K0, K1; |
| int v; |
| cmsUInt32Number OutChan; |
| const cmsUInt16Number* LutTable = (cmsUInt16Number*) p16 -> Table; |
| |
| |
| // if last value... |
| if (Input[0] == 0xffff || p16->Domain[0] == 0) { |
| |
| cmsUInt32Number y0 = p16->Domain[0] * p16->opta[0]; |
| |
| for (OutChan = 0; OutChan < p16->nOutputs; OutChan++) { |
| Output[OutChan] = LutTable[y0 + OutChan]; |
| } |
| } |
| else |
| { |
| |
| 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 || p->Domain[0] == 0) { |
| |
| cmsUInt32Number start = p->Domain[0] * p->opta[0]; |
| |
| for (OutChan = 0; OutChan < p->nOutputs; OutChan++) { |
| Output[OutChan] = LutTable[start + OutChan]; |
| } |
| } |
| else |
| { |
| 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 + (fclamp(Input[0]) >= 1.0 ? 0 : p->opta[1]); |
| |
| Y0 = p -> opta[0] * y0; |
| Y1 = Y0 + (fclamp(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 CMS_NO_SANITIZE |
| void BilinearInterp16(CMSREGISTER const cmsUInt16Number Input[], |
| CMSREGISTER cmsUInt16Number Output[], |
| CMSREGISTER 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; |
| CMSREGISTER int rx, ry; |
| int x0, y0; |
| CMSREGISTER 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) floor(px); fx = px - (cmsFloat32Number) x0; // We need full floor funcionality here |
| y0 = (int) floor(py); fy = py - (cmsFloat32Number) y0; |
| z0 = (int) floor(pz); fz = pz - (cmsFloat32Number) z0; |
| |
| X0 = p -> opta[2] * x0; |
| X1 = X0 + (fclamp(Input[0]) >= 1.0 ? 0 : p->opta[2]); |
| |
| Y0 = p -> opta[1] * y0; |
| Y1 = Y0 + (fclamp(Input[1]) >= 1.0 ? 0 : p->opta[1]); |
| |
| Z0 = p -> opta[0] * z0; |
| Z1 = Z0 + (fclamp(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 CMS_NO_SANITIZE |
| void TrilinearInterp16(CMSREGISTER const cmsUInt16Number Input[], |
| CMSREGISTER cmsUInt16Number Output[], |
| CMSREGISTER 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; |
| CMSREGISTER int rx, ry, rz; |
| int x0, y0, z0; |
| CMSREGISTER 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) floor(px); rx = (px - (cmsFloat32Number) x0); // We need full floor functionality here |
| y0 = (int) floor(py); ry = (py - (cmsFloat32Number) y0); |
| z0 = (int) floor(pz); rz = (pz - (cmsFloat32Number) z0); |
| |
| |
| X0 = p -> opta[2] * x0; |
| X1 = X0 + (fclamp(Input[0]) >= 1.0 ? 0 : p->opta[2]); |
| |
| Y0 = p -> opta[1] * y0; |
| Y1 = Y0 + (fclamp(Input[1]) >= 1.0 ? 0 : p->opta[1]); |
| |
| Z0 = p -> opta[0] * z0; |
| Z1 = Z0 + (fclamp(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 CMS_NO_SANITIZE |
| void TetrahedralInterp16(CMSREGISTER const cmsUInt16Number Input[], |
| CMSREGISTER cmsUInt16Number Output[], |
| CMSREGISTER 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; |
| cmsUInt32Number 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 += 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 CMS_NO_SANITIZE |
| void Eval4Inputs(CMSREGISTER const cmsUInt16Number Input[], |
| CMSREGISTER cmsUInt16Number Output[], |
| CMSREGISTER 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 + (fclamp(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; |
| } |
| } |
| |
| #define EVAL_FNS(N,NM) static CMS_NO_SANITIZE \ |
| void Eval##N##Inputs(CMSREGISTER const cmsUInt16Number Input[], CMSREGISTER cmsUInt16Number Output[], CMSREGISTER 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[NM] * k0;\ |
| K1 = p16 -> opta[NM] * (k0 + (Input[0] != 0xFFFFU ? 1 : 0));\ |
| \ |
| p1 = *p16;\ |
| memmove(&p1.Domain[0], &p16 ->Domain[1], NM*sizeof(cmsUInt32Number));\ |
| \ |
| T = LutTable + K0;\ |
| p1.Table = T;\ |
| \ |
| Eval##NM##Inputs(Input + 1, Tmp1, &p1);\ |
| \ |
| T = LutTable + K1;\ |
| p1.Table = T;\ |
| \ |
| Eval##NM##Inputs(Input + 1, Tmp2, &p1);\ |
| \ |
| for (i=0; i < p16 -> nOutputs; i++) {\ |
| \ |
| Output[i] = LinearInterp(rk, Tmp1[i], Tmp2[i]);\ |
| }\ |
| }\ |
| \ |
| static void Eval##N##InputsFloat(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[NM] * k0;\ |
| K1 = K0 + (fclamp(Input[0]) >= 1.0 ? 0 : p->opta[NM]);\ |
| \ |
| p1 = *p;\ |
| memmove(&p1.Domain[0], &p ->Domain[1], NM*sizeof(cmsUInt32Number));\ |
| \ |
| T = LutTable + K0;\ |
| p1.Table = T;\ |
| \ |
| Eval##NM##InputsFloat(Input + 1, Tmp1, &p1);\ |
| \ |
| T = LutTable + K1;\ |
| p1.Table = T;\ |
| \ |
| Eval##NM##InputsFloat(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;\ |
| }\ |
| } |
| |
| |
| /** |
| * Thanks to Carles Llopis for the templating idea |
| */ |
| EVAL_FNS(5, 4) |
| EVAL_FNS(6, 5) |
| EVAL_FNS(7, 6) |
| EVAL_FNS(8, 7) |
| EVAL_FNS(9, 8) |
| EVAL_FNS(10, 9) |
| EVAL_FNS(11, 10) |
| EVAL_FNS(12, 11) |
| EVAL_FNS(13, 12) |
| EVAL_FNS(14, 13) |
| EVAL_FNS(15, 14) |
| |
| |
| // 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; |
| |
| case 9: |
| if (IsFloat) |
| Interpolation.LerpFloat = Eval9InputsFloat; |
| else |
| Interpolation.Lerp16 = Eval9Inputs; |
| break; |
| |
| case 10: |
| if (IsFloat) |
| Interpolation.LerpFloat = Eval10InputsFloat; |
| else |
| Interpolation.Lerp16 = Eval10Inputs; |
| break; |
| |
| case 11: |
| if (IsFloat) |
| Interpolation.LerpFloat = Eval11InputsFloat; |
| else |
| Interpolation.Lerp16 = Eval11Inputs; |
| break; |
| |
| case 12: |
| if (IsFloat) |
| Interpolation.LerpFloat = Eval12InputsFloat; |
| else |
| Interpolation.Lerp16 = Eval12Inputs; |
| break; |
| |
| case 13: |
| if (IsFloat) |
| Interpolation.LerpFloat = Eval13InputsFloat; |
| else |
| Interpolation.Lerp16 = Eval13Inputs; |
| break; |
| |
| case 14: |
| if (IsFloat) |
| Interpolation.LerpFloat = Eval14InputsFloat; |
| else |
| Interpolation.Lerp16 = Eval14Inputs; |
| break; |
| |
| case 15: |
| if (IsFloat) |
| Interpolation.LerpFloat = Eval15InputsFloat; |
| else |
| Interpolation.Lerp16 = Eval15Inputs; |
| break; |
| |
| default: |
| Interpolation.Lerp16 = NULL; |
| } |
| |
| return Interpolation; |
| } |
