265 lines
7.7 KiB
C++
265 lines
7.7 KiB
C++
/*
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* This file is part of RawTherapee.
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*
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* Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
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*
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* RawTherapee is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* RawTherapee is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with RawTherapee. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <rtengine.h>
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#include <improcfun.h>
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#include <glibmm.h>
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#include <iccstore.h>
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#ifdef _OPENMP
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#include <omp.h>
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#endif
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namespace rtengine {
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#undef CLIP
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#undef CLIPTO
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#undef CMAXVAL
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#define CMAXVAL 0xffff
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#define CLIP(a) ((a)>0?((a)<CMAXVAL?(a):CMAXVAL):0)
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#define CLIPTO(a,b,c) ((a)>(b)?((a)<(c)?(a):(c)):(b))
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extern const Settings* settings;
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void ImProcFunctions::lab2rgb (LabImage* lab, Image8* image) {
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if (chroma_scale == 0)
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return;
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if (monitorTransform) {
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int ix = 0;
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short* buffer = new short [3*lab->W];
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for (int i=0; i<lab->H; i++) {
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unsigned short* rL = lab->L[i];
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short* ra = lab->a[i];
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short* rb = lab->b[i];
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int iy = 0;
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for (int j=0; j<lab->W; j++) {
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int y_ = rL[j];
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int x_ = rL[j]+10486+ra[j]*152/chroma_scale+141556;
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int z_ = rL[j]+10486-rb[j]*380/chroma_scale+369619;
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x_ = CLIPTO(x_,0,369820);
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y_ = CLIPTO(y_,0,825745);
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y_ = ycache[y_];
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x_ = xcache[x_];
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z_ = zcache[z_];
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buffer[iy++] = CLIP(x_);
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buffer[iy++] = CLIP(y_);
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buffer[iy++] = CLIP(z_);
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}
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cmsDoTransform (monitorTransform, buffer, image->data + ix, lab->W);
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ix += 3*lab->W;
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}
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delete [] buffer;
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}
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else {
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#pragma omp parallel for if (multiThread)
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for (int i=0; i<lab->H; i++) {
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unsigned short* rL = lab->L[i];
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short* ra = lab->a[i];
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short* rb = lab->b[i];
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int ix = 3*i*lab->W;
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for (int j=0; j<lab->W; j++) {
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int y_ = rL[j];
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int x_ = rL[j]+10486+ra[j]*152/chroma_scale+141556;
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int z_ = rL[j]+10486-rb[j]*380/chroma_scale+369619;
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x_ = CLIPTO(x_,0,369820);
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y_ = CLIPTO(y_,0,825745);
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y_ = ycache[y_];
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x_ = xcache[x_];
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z_ = zcache[z_];
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/* XYZ-D50 to RGB */
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int R = (25689*x_-13261*y_-4022*z_) >> 13;
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int G = (-8017*x_+15697*y_+274*z_) >> 13;
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int B = (590*x_-1877*y_+11517*z_) >> 13;
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/* copy RGB */
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image->data[ix++] = gamma2curve[CLIP(R)] >> 8;
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image->data[ix++] = gamma2curve[CLIP(G)] >> 8;
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image->data[ix++] = gamma2curve[CLIP(B)] >> 8;
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}
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}
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}
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}
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Image8* ImProcFunctions::lab2rgb (LabImage* lab, int cx, int cy, int cw, int ch, Glib::ustring profile) {
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if (cx<0) cx = 0;
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if (cy<0) cy = 0;
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if (cx+cw>lab->W) cw = lab->W-cx;
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if (cy+ch>lab->H) ch = lab->H-cy;
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Image8* image = new Image8 (cw, ch);
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cmsHPROFILE oprof = iccStore->getProfile (profile);
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if (oprof) {
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cmsHPROFILE iprof = iccStore->getXYZProfile ();
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lcmsMutex->lock ();
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cmsHTRANSFORM hTransform = cmsCreateTransform (iprof, TYPE_RGB_16, oprof, TYPE_RGB_8, settings->colorimetricIntent, 0);
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lcmsMutex->unlock ();
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int ix = 0;
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short* buffer = new short [3*cw];
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for (int i=cy; i<cy+ch; i++) {
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unsigned short* rL = lab->L[i];
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short* ra = lab->a[i];
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short* rb = lab->b[i];
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int iy = 0;
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for (int j=cx; j<cx+cw; j++) {
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int y_ = rL[j];
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int x_ = rL[j]+10486+ra[j]*152/chroma_scale+141556;
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int z_ = rL[j]+10486-rb[j]*380/chroma_scale+369619;
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x_ = CLIPTO(x_,0,369820);
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y_ = CLIPTO(y_,0,825745);
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y_ = ycache[y_];
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x_ = xcache[x_];
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z_ = zcache[z_];
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buffer[iy++] = CLIP(x_);
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buffer[iy++] = CLIP(y_);
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buffer[iy++] = CLIP(z_);
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}
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cmsDoTransform (hTransform, buffer, image->data + ix, cw);
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ix += 3*cw;
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}
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delete [] buffer;
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cmsDeleteTransform(hTransform);
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}
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else {
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#pragma omp parallel for if (multiThread)
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for (int i=cy; i<cy+ch; i++) {
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unsigned short* rL = lab->L[i];
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short* ra = lab->a[i];
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short* rb = lab->b[i];
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int ix = 3*i*cw;
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for (int j=cx; j<cx+cw; j++) {
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int y_ = rL[j];
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int x_ = rL[j]+10486+ra[j]*152/chroma_scale+141556;
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int z_ = rL[j]+10486-rb[j]*380/chroma_scale+369619;
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x_ = CLIPTO(x_,0,369820);
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y_ = CLIPTO(y_,0,825745);
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y_ = ycache[y_];
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x_ = xcache[x_];
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z_ = zcache[z_];
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int R = (25689*x_-13261*y_-4022*z_) >> 13;
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int G = (-8017*x_+15697*y_+274*z_) >> 13;
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int B = (590*x_-1877*y_+11517*z_) >> 13;
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image->data[ix++] = gamma2curve[CLIP(R)] >> 8;
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image->data[ix++] = gamma2curve[CLIP(G)] >> 8;
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image->data[ix++] = gamma2curve[CLIP(B)] >> 8;
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}
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}
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}
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return image;
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}
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Image16* ImProcFunctions::lab2rgb16 (LabImage* lab, int cx, int cy, int cw, int ch, Glib::ustring profile) {
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if (cx<0) cx = 0;
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if (cy<0) cy = 0;
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if (cx+cw>lab->W) cw = lab->W-cx;
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if (cy+ch>lab->H) ch = lab->H-cy;
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Image16* image = new Image16 (cw, ch);
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cmsHPROFILE oprof = iccStore->getProfile (profile);
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if (oprof) {
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#pragma omp parallel for if (multiThread)
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for (int i=cy; i<cy+ch; i++) {
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unsigned short* rL = lab->L[i];
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short* ra = lab->a[i];
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short* rb = lab->b[i];
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short* xa = (short*)image->r[i-cy];
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short* ya = (short*)image->g[i-cy];
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short* za = (short*)image->b[i-cy];
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for (int j=cx; j<cx+cw; j++) {
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int y_ = rL[j];
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int x_ = rL[j]+10486+ra[j]*152/chroma_scale+141556;
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int z_ = rL[j]+10486-rb[j]*380/chroma_scale+369619;
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x_ = CLIPTO(x_,0,369820);
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y_ = CLIPTO(y_,0,825745);
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y_ = ycache[y_];
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x_ = xcache[x_];
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z_ = zcache[z_];
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xa[j-cx] = CLIP(x_);
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ya[j-cx] = CLIP(y_);
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za[j-cx] = CLIP(z_);
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}
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}
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cmsHPROFILE iprof = iccStore->getXYZProfile ();
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lcmsMutex->lock ();
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cmsHTRANSFORM hTransform = cmsCreateTransform (iprof, TYPE_RGB_16_PLANAR, oprof, TYPE_RGB_16_PLANAR, settings->colorimetricIntent, 0);
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lcmsMutex->unlock ();
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cmsDoTransform (hTransform, image->data, image->data, image->planestride/2);
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cmsDeleteTransform(hTransform);
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}
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else {
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#pragma omp parallel for if (multiThread)
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for (int i=cy; i<cy+ch; i++) {
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unsigned short* rL = lab->L[i];
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short* ra = lab->a[i];
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short* rb = lab->b[i];
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for (int j=cx; j<cx+cw; j++) {
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int y_ = rL[j];
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int x_ = rL[j]+10486+ra[j]*152/chroma_scale+141556;
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int z_ = rL[j]+10486-rb[j]*380/chroma_scale+369619;
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x_ = CLIPTO(x_,0,369820);
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y_ = CLIPTO(y_,0,825745);
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y_ = ycache[y_];
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x_ = xcache[x_];
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z_ = zcache[z_];
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int R = (25689*x_-13261*y_-4022*z_) >> 13;
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int G = (-8017*x_+15697*y_+274*z_) >> 13;
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int B = (590*x_-1877*y_+11517*z_) >> 13;
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image->r[i-cy][j-cx] = gamma2curve[CLIP(R)];
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image->g[i-cy][j-cx] = gamma2curve[CLIP(G)];
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image->b[i-cy][j-cx] = gamma2curve[CLIP(B)];
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}
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}
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}
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return image;
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}
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}
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