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author | Nicolas Pena <npm@chromium.org> | 2017-08-10 16:36:56 -0400 |
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committer | Chromium commit bot <commit-bot@chromium.org> | 2017-08-10 20:54:00 +0000 |
commit | f7520395821090b36a5ad8c658a844c3342dbf66 (patch) | |
tree | abe5505e60a57479593d6c39790fe214c23f9fef /third_party/lcms2-2.6/src/cmsintrp.c | |
parent | a12812924fc844823025fa383cc3ec8c1d1e2d4f (diff) | |
download | pdfium-f7520395821090b36a5ad8c658a844c3342dbf66.tar.xz |
LCMS: rename folder
Change-Id: I5f240cb0779648dc5427fecb5561086e7c0fb16a
Reviewed-on: https://pdfium-review.googlesource.com/10650
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Nicolás Peña <npm@chromium.org>
Diffstat (limited to 'third_party/lcms2-2.6/src/cmsintrp.c')
-rw-r--r-- | third_party/lcms2-2.6/src/cmsintrp.c | 1506 |
1 files changed, 0 insertions, 1506 deletions
diff --git a/third_party/lcms2-2.6/src/cmsintrp.c b/third_party/lcms2-2.6/src/cmsintrp.c deleted file mode 100644 index 14c68563ca..0000000000 --- a/third_party/lcms2-2.6/src/cmsintrp.c +++ /dev/null @@ -1,1506 +0,0 @@ -//--------------------------------------------------------------------------------- -// -// 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; -} |