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572 lines
20 KiB
572 lines
20 KiB
13 years ago
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/*
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* Copyright (c) 2002 Patrick Julien <freak@codepimps.org>
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* Copyright (c) 2004 Boudewijn Rempt <boud@valdyas.org>
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* Copyright (c) 2005 Adrian Page <adrian@pagenet.plus.com>
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* Copyright (c) 2005 Casper Boemann <cbr@boemann.dk>
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*
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* This program 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 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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 this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <config.h>
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#include <limits.h>
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#include <stdlib.h>
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#include LCMS_HEADER
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#include <tqimage.h>
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#include <kdebug.h>
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11 years ago
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#include <tdelocale.h>
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13 years ago
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#include "kis_lab_colorspace.h"
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#include "kis_color_conversions.h"
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#include "kis_integer_maths.h"
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13 years ago
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KisLabColorSpace::KisLabColorSpace(KisColorSpaceFactoryRegistry * parent, KisProfile *p)
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13 years ago
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: KisU16BaseColorSpace(KisID("LABA", i18n("L*a*b* (16-bit integer/channel)")),
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COLORSPACE_SH(PT_Lab)|CHANNELS_SH(3)|BYTES_SH(2)|EXTRA_SH(1),
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13 years ago
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icSigLabData, parent, p)
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13 years ago
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{
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m_channels.push_back(new KisChannelInfo(i18n("Lightness"), i18n("L"), CHANNEL_L * sizeof(TQ_UINT16), KisChannelInfo::COLOR, KisChannelInfo::UINT16, sizeof(TQ_UINT16), TQColor(100,100,100)));
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m_channels.push_back(new KisChannelInfo(i18n("a*"), i18n("a"), CHANNEL_A * sizeof(TQ_UINT16), KisChannelInfo::COLOR, KisChannelInfo::UINT16, sizeof(TQ_UINT16), TQColor(150,150,150)));
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m_channels.push_back(new KisChannelInfo(i18n("b*"), i18n("b"), CHANNEL_B * sizeof(TQ_UINT16), KisChannelInfo::COLOR, KisChannelInfo::UINT16, sizeof(TQ_UINT16), TQColor(200,200,200)));
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m_channels.push_back(new KisChannelInfo(i18n("Alpha"), i18n("A"), CHANNEL_ALPHA * sizeof(TQ_UINT16), KisChannelInfo::ALPHA, KisChannelInfo::UINT16, sizeof(TQ_UINT16)));
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m_alphaPos = CHANNEL_ALPHA * sizeof(TQ_UINT16);
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init();
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}
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KisLabColorSpace::~KisLabColorSpace()
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{
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}
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TQ_UINT8 * KisLabColorSpace::toLabA16(const TQ_UINT8 * data, const TQ_UINT32 nPixels) const
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{
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TQ_UINT8 * pixels = new TQ_UINT8[nPixels * pixelSize()];
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memcpy( pixels, data, nPixels * pixelSize() );
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return pixels;
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}
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TQ_UINT8 * KisLabColorSpace::fromLabA16(const TQ_UINT8 * labData, const TQ_UINT32 nPixels) const
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{
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TQ_UINT8 * pixels = new TQ_UINT8[nPixels * pixelSize()];
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memcpy( pixels, labData, nPixels * pixelSize() );
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return pixels;
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}
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TQ_UINT8 KisLabColorSpace::difference(const TQ_UINT8 *src1, const TQ_UINT8 *src2)
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{
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cmsCIELab labF1, labF2;
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if (getAlpha(src1) == OPACITY_TRANSPARENT || getAlpha(src2) == OPACITY_TRANSPARENT)
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return (getAlpha(src1) == getAlpha(src2) ? 0 : 255);
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cmsLabEncoded2Float(&labF1, (WORD *)src1);
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cmsLabEncoded2Float(&labF2, (WORD *)src2);
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double diff = cmsDeltaE(&labF1, &labF2);
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if(diff>255)
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return 255;
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else
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return TQ_INT8(diff);
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}
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void KisLabColorSpace::mixColors(const TQ_UINT8 **colors, const TQ_UINT8 *weights, TQ_UINT32 nColors, TQ_UINT8 *dst) const
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{
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TQ_UINT32 totalLightness = 0, totalAlpha = 0;
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TQ_UINT32 totala = 0, totalb = 0;
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while (nColors--)
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{
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const Pixel *color = reinterpret_cast<const Pixel *>( *colors );
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TQ_UINT32 alphaTimesWeight = UINT8_MULT(color->alpha, *weights);
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totalLightness += color->lightness * alphaTimesWeight;
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totala += color->a * alphaTimesWeight;
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totalb += color->b * alphaTimesWeight;
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totalAlpha += alphaTimesWeight;
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weights++;
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colors++;
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}
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if (totalAlpha > UINT16_MAX) {
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totalAlpha = UINT16_MAX;
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}
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((Pixel *)dst)->alpha = totalAlpha;
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if (totalAlpha > 0) {
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totalLightness /= totalAlpha;
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totala /= totalAlpha;
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totalb /= totalAlpha;
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} // else the values are already 0 too
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if (totalLightness > MAX_CHANNEL_L) {
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totalLightness = MAX_CHANNEL_L;
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}
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((Pixel *)dst)->lightness = totalLightness;
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if (totala > MAX_CHANNEL_AB) {
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totala = MAX_CHANNEL_AB;
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}
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((Pixel *)dst)->a = totala;
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if (totalb > MAX_CHANNEL_AB) {
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totalb = MAX_CHANNEL_AB;
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}
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((Pixel *)dst)->b = totalb;
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}
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void KisLabColorSpace::invertColor(TQ_UINT8 * src, TQ_INT32 nPixels)
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{
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TQ_UINT32 psize = pixelSize();
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while (nPixels--)
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{
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Pixel * s = reinterpret_cast<Pixel *>( src );
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s->lightness = MAX_CHANNEL_L - s->lightness;
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s->a = MAX_CHANNEL_AB - s->a;
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s->b = MAX_CHANNEL_AB - s->b;
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src += psize;
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}
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}
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void KisLabColorSpace::convolveColors(TQ_UINT8** colors, TQ_INT32 * kernelValues, KisChannelInfo::enumChannelFlags channelFlags,
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TQ_UINT8 *dst, TQ_INT32 factor, TQ_INT32 offset, TQ_INT32 nColors) const
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{
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TQ_INT32 totalL = 0, totalA = 0, totalB = 0, totalAlpha = 0;
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while ( nColors -- )
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{
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const Pixel * pixel = reinterpret_cast<const Pixel *>( *colors );
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TQ_INT32 weight = *kernelValues;
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if ( weight != 0 ) {
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totalL += pixel->lightness * weight;
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totalA += pixel->a * weight;
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totalB += pixel->b * weight;
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totalAlpha += pixel->alpha * weight;
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}
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colors++;
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kernelValues++;
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}
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Pixel * p = reinterpret_cast< Pixel *>( dst );
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if (channelFlags & KisChannelInfo::FLAG_COLOR) {
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p->lightness = CLAMP( ( totalL / factor) + offset, 0, TQ_UINT16_MAX);
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p->a = CLAMP( ( totalA / factor) + offset, 0, TQ_UINT16_MAX);
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p->b = CLAMP( ( totalB / factor) + offset, 0, TQ_UINT16_MAX);
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}
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if (channelFlags & KisChannelInfo::FLAG_ALPHA) {
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p->alpha = CLAMP((totalAlpha/ factor) + offset, 0, TQ_UINT16_MAX);
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}
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}
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void KisLabColorSpace::darken(const TQ_UINT8 * src, TQ_UINT8 * dst, TQ_INT32 shade, bool compensate, double compensation, TQ_INT32 nPixels) const
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{
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// XXX: Is the 255 right for u16 colorspaces?
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TQ_UINT32 pSize = pixelSize();
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while ( nPixels-- ) {
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const Pixel * s = reinterpret_cast<const Pixel*>( src );
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Pixel * d = reinterpret_cast<Pixel*>( dst );
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if ( compensate ) {
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d->lightness = static_cast<TQ_UINT16>( ( s->lightness * shade ) / ( compensation * 255 ) );
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}
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else {
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d->lightness = static_cast<TQ_UINT16>( s->lightness * shade / 255 );
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}
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d->a = s->a;
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d->b = s->b;
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d->alpha = s->alpha;
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src += pSize;
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dst += pSize;
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}
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}
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TQValueVector<KisChannelInfo *> KisLabColorSpace::channels() const
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{
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return m_channels;
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}
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TQ_UINT32 KisLabColorSpace::nChannels() const
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{
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return NUM_CHANNELS;
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}
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TQ_UINT32 KisLabColorSpace::nColorChannels() const
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{
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return NUM_COLOR_CHANNELS;
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}
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TQ_UINT32 KisLabColorSpace::pixelSize() const
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{
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return sizeof(Pixel);
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}
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void KisLabColorSpace::getSingleChannelPixel(TQ_UINT8 *dst, const TQ_UINT8 *src, TQ_UINT32 channelIndex)
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{
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if (channelIndex < NUM_CHANNELS) {
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const Pixel *srcPixel = reinterpret_cast<const Pixel *>(src);
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Pixel *dstPixel = reinterpret_cast<Pixel *>(dst);
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switch (channelIndex) {
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case CHANNEL_L:
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dstPixel->lightness = srcPixel->lightness;
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dstPixel->a = CHANNEL_AB_ZERO_OFFSET;
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dstPixel->b = CHANNEL_AB_ZERO_OFFSET;
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dstPixel->alpha = U16_OPACITY_TRANSPARENT;
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break;
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case CHANNEL_A:
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dstPixel->lightness = MAX_CHANNEL_L / 2;
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dstPixel->a = srcPixel->a;
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dstPixel->b = CHANNEL_AB_ZERO_OFFSET;
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dstPixel->alpha = U16_OPACITY_TRANSPARENT;
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break;
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case CHANNEL_B:
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dstPixel->lightness = MAX_CHANNEL_L / 2;
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dstPixel->a = CHANNEL_AB_ZERO_OFFSET;
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dstPixel->b = srcPixel->b;
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dstPixel->alpha = U16_OPACITY_TRANSPARENT;
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break;
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case CHANNEL_ALPHA:
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dstPixel->lightness = MAX_CHANNEL_L / 2;
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dstPixel->a = CHANNEL_AB_ZERO_OFFSET;
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dstPixel->b = CHANNEL_AB_ZERO_OFFSET;
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dstPixel->alpha = srcPixel->alpha;
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break;
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}
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}
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}
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13 years ago
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void KisLabColorSpace::compositeOver(TQ_UINT8 *dstRowStart, TQ_INT32 dstRowStride, const TQ_UINT8 *srcRowStart, TQ_INT32 srcRowStride, const TQ_UINT8 *maskRowStart, TQ_INT32 maskRowStride, TQ_INT32 rows, TQ_INT32 numColumns, TQ_UINT16 opacity)
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13 years ago
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{
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while (rows > 0) {
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const Pixel *src = reinterpret_cast<const Pixel *>(srcRowStart);
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Pixel *dst = reinterpret_cast<Pixel *>(dstRowStart);
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13 years ago
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const TQ_UINT8 *mask = maskRowStart;
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13 years ago
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TQ_INT32 columns = numColumns;
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while (columns > 0) {
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TQ_UINT16 srcAlpha = src->alpha;
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13 years ago
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// apply the alphamask
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if (mask != 0) {
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if (*mask != OPACITY_OPAQUE) {
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srcAlpha = UINT16_MULT(srcAlpha, *mask);
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13 years ago
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}
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13 years ago
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mask++;
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13 years ago
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}
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if (srcAlpha != U16_OPACITY_TRANSPARENT) {
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if (opacity != U16_OPACITY_OPAQUE) {
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srcAlpha = UINT16_MULT(srcAlpha, opacity);
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}
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if (srcAlpha == U16_OPACITY_OPAQUE) {
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memcpy(dst, src, sizeof(Pixel));
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} else {
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TQ_UINT16 dstAlpha = dst->alpha;
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TQ_UINT16 srcBlend;
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if (dstAlpha == U16_OPACITY_OPAQUE) {
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srcBlend = srcAlpha;
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} else {
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TQ_UINT16 newAlpha = dstAlpha + UINT16_MULT(U16_OPACITY_OPAQUE - dstAlpha, srcAlpha);
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dst->alpha = newAlpha;
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if (newAlpha != 0) {
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srcBlend = UINT16_DIVIDE(srcAlpha, newAlpha);
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} else {
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srcBlend = srcAlpha;
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}
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}
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if (srcBlend == U16_OPACITY_OPAQUE) {
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memcpy(dst, src, sizeof(Pixel));
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} else {
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/*printf("blend is %d\n", srcBlend);
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printf("%d %d %d\n", src->lightness, src->a, src->b);
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printf("%d %d %d\n", dst->lightness, dst->a, dst->b);
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*/
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dst->lightness = UINT16_BLEND(src->lightness, dst->lightness, srcBlend);
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dst->a = UINT16_BLEND(src->a, dst->a, srcBlend);
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dst->b = UINT16_BLEND(src->b, dst->b, srcBlend);
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//printf("%d %d %d\n", dst->lightness, dst->a, dst->b);
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}
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}
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}
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columns--;
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src++;
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dst++;
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}
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rows--;
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srcRowStart += srcRowStride;
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dstRowStart += dstRowStride;
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13 years ago
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if(maskRowStart) {
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maskRowStart += maskRowStride;
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13 years ago
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}
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}
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}
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void KisLabColorSpace::compositeErase(TQ_UINT8 *dst,
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TQ_INT32 dstRowSize,
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const TQ_UINT8 *src,
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TQ_INT32 srcRowSize,
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const TQ_UINT8 *srcAlphaMask,
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13 years ago
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TQ_INT32 maskRowStride,
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13 years ago
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TQ_INT32 rows,
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TQ_INT32 cols,
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TQ_UINT16 /*opacity*/)
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{
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while (rows-- > 0)
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{
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const Pixel *s = reinterpret_cast<const Pixel *>(src);
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Pixel *d = reinterpret_cast<Pixel *>(dst);
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13 years ago
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const TQ_UINT8 *mask = srcAlphaMask;
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13 years ago
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for (TQ_INT32 i = cols; i > 0; i--, s++, d++)
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{
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TQ_UINT16 srcAlpha = s->alpha;
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13 years ago
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// apply the alphamask
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if (mask != 0) {
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TQ_UINT8 U8_mask = *mask;
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13 years ago
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13 years ago
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if (U8_mask != OPACITY_OPAQUE) {
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srcAlpha = UINT16_BLEND(srcAlpha, U16_OPACITY_OPAQUE, UINT8_TO_UINT16(U8_mask));
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13 years ago
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}
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13 years ago
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mask++;
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13 years ago
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}
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d->alpha = UINT16_MULT(srcAlpha, d->alpha);
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}
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dst += dstRowSize;
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src += srcRowSize;
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if(srcAlphaMask) {
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13 years ago
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srcAlphaMask += maskRowStride;
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13 years ago
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}
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}
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}
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void KisLabColorSpace::bitBlt(TQ_UINT8 *dst,
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TQ_INT32 dstRowStride,
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const TQ_UINT8 *src,
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TQ_INT32 srcRowStride,
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13 years ago
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const TQ_UINT8 *mask,
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13 years ago
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TQ_INT32 maskRowStride,
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13 years ago
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TQ_UINT8 U8_opacity,
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TQ_INT32 rows,
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TQ_INT32 cols,
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const KisCompositeOp& op)
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{
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TQ_UINT16 opacity = UINT8_TO_UINT16(U8_opacity);
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switch (op.op()) {
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case COMPOSITE_UNDEF:
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// Undefined == no composition
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break;
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case COMPOSITE_OVER:
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13 years ago
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compositeOver(dst, dstRowStride, src, srcRowStride, mask, maskRowStride, rows, cols, opacity);
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13 years ago
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break;
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case COMPOSITE_IN:
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||
|
//compositeIn(pixelSize(), dst, dstRowStride, src, srcRowStride, rows, cols, opacity);
|
||
|
break;
|
||
|
case COMPOSITE_OUT:
|
||
|
//compositeOut(pixelSize(), dst, dstRowStride, src, srcRowStride, rows, cols, opacity);
|
||
|
break;
|
||
|
case COMPOSITE_ATOP:
|
||
|
//compositeAtop(pixelSize(), dst, dstRowStride, src, srcRowStride, rows, cols, opacity);
|
||
|
break;
|
||
|
case COMPOSITE_XOR:
|
||
|
//compositeXor(pixelSize(), dst, dstRowStride, src, srcRowStride, rows, cols, opacity);
|
||
|
break;
|
||
|
case COMPOSITE_PLUS:
|
||
|
//compositePlus(pixelSize(), dst, dstRowStride, src, srcRowStride, rows, cols, opacity);
|
||
|
break;
|
||
|
case COMPOSITE_MINUS:
|
||
|
//compositeMinus(pixelSize(), dst, dstRowStride, src, srcRowStride, rows, cols, opacity);
|
||
|
break;
|
||
|
case COMPOSITE_ADD:
|
||
|
//compositeAdd(pixelSize(), dst, dstRowStride, src, srcRowStride, rows, cols, opacity);
|
||
|
break;
|
||
|
case COMPOSITE_SUBTRACT:
|
||
|
//compositeSubtract(pixelSize(), dst, dstRowStride, src, srcRowStride, rows, cols, opacity);
|
||
|
break;
|
||
|
case COMPOSITE_DIFF:
|
||
|
//compositeDiff(pixelSize(), dst, dstRowStride, src, srcRowStride, rows, cols, opacity);
|
||
|
break;
|
||
|
case COMPOSITE_MULT:
|
||
13 years ago
|
//compositeMultiply(dst, dstRowStride, src, srcRowStride, mask, maskRowStride, rows, cols, opacity);
|
||
13 years ago
|
break;
|
||
|
case COMPOSITE_DIVIDE:
|
||
13 years ago
|
//compositeDivide(dst, dstRowStride, src, srcRowStride, mask, maskRowStride, rows, cols, opacity);
|
||
13 years ago
|
break;
|
||
|
case COMPOSITE_BUMPMAP:
|
||
|
//compositeBumpmap(pixelSize(), dst, dstRowStride, src, srcRowStride, rows, cols, opacity);
|
||
|
break;
|
||
|
case COMPOSITE_COPY:
|
||
13 years ago
|
compositeCopy(dst, dstRowStride, src, srcRowStride, mask, maskRowStride, rows, cols, U8_opacity);
|
||
13 years ago
|
break;
|
||
|
case COMPOSITE_COPY_RED:
|
||
|
//compositeCopyRed(pixelSize(), dst, dstRowStride, src, srcRowStride, rows, cols, opacity);
|
||
|
break;
|
||
|
case COMPOSITE_COPY_GREEN:
|
||
|
//compositeCopyGreen(pixelSize(), dst, dstRowStride, src, srcRowStride, rows, cols, opacity);
|
||
|
break;
|
||
|
case COMPOSITE_COPY_BLUE:
|
||
|
//compositeCopyBlue(pixelSize(), dst, dstRowStride, src, srcRowStride, rows, cols, opacity);
|
||
|
break;
|
||
|
case COMPOSITE_COPY_OPACITY:
|
||
|
//compositeCopyOpacity(pixelSize(), dst, dstRowStride, src, srcRowStride, rows, cols, opacity);
|
||
|
break;
|
||
|
case COMPOSITE_CLEAR:
|
||
|
//compositeClear(pixelSize(), dst, dstRowStride, src, srcRowStride, rows, cols, opacity);
|
||
|
break;
|
||
|
case COMPOSITE_DISSOLVE:
|
||
|
//compositeDissolve(pixelSize(), dst, dstRowStride, src, srcRowStride, rows, cols, opacity);
|
||
|
break;
|
||
|
case COMPOSITE_DISPLACE:
|
||
|
//compositeDisplace(pixelSize(), dst, dstRowStride, src, srcRowStride, rows, cols, opacity);
|
||
|
break;
|
||
|
#if 0
|
||
|
case COMPOSITE_MODULATE:
|
||
|
compositeModulate(pixelSize(), dst, dstRowStride, src, srcRowStride, rows, cols, opacity);
|
||
|
break;
|
||
|
case COMPOSITE_THRESHOLD:
|
||
|
compositeThreshold(pixelSize(), dst, dstRowStride, src, srcRowStride, rows, cols, opacity);
|
||
|
break;
|
||
|
#endif
|
||
|
case COMPOSITE_NO:
|
||
|
// No composition.
|
||
|
break;
|
||
|
case COMPOSITE_DARKEN:
|
||
13 years ago
|
//compositeDarken(dst, dstRowStride, src, srcRowStride, mask, maskRowStride, rows, cols, opacity);
|
||
13 years ago
|
break;
|
||
|
case COMPOSITE_LIGHTEN:
|
||
13 years ago
|
//compositeLighten(dst, dstRowStride, src, srcRowStride, mask, maskRowStride, rows, cols, opacity);
|
||
13 years ago
|
break;
|
||
|
case COMPOSITE_HUE:
|
||
13 years ago
|
//compositeHue(dst, dstRowStride, src, srcRowStride, mask, maskRowStride, rows, cols, opacity);
|
||
13 years ago
|
break;
|
||
|
case COMPOSITE_SATURATION:
|
||
13 years ago
|
//compositeSaturation(dst, dstRowStride, src, srcRowStride, mask, maskRowStride, rows, cols, opacity);
|
||
13 years ago
|
break;
|
||
|
case COMPOSITE_VALUE:
|
||
13 years ago
|
//compositeValue(dst, dstRowStride, src, srcRowStride, mask, maskRowStride, rows, cols, opacity);
|
||
13 years ago
|
break;
|
||
|
case COMPOSITE_COLOR:
|
||
13 years ago
|
//compositeColor(dst, dstRowStride, src, srcRowStride, mask, maskRowStride, rows, cols, opacity);
|
||
13 years ago
|
break;
|
||
|
case COMPOSITE_COLORIZE:
|
||
|
//compositeColorize(pixelSize(), dst, dstRowStride, src, srcRowStride, rows, cols, opacity);
|
||
|
break;
|
||
|
case COMPOSITE_LUMINIZE:
|
||
|
//compositeLuminize(pixelSize(), dst, dstRowStride, src, srcRowStride, rows, cols, opacity);
|
||
|
break;
|
||
|
case COMPOSITE_SCREEN:
|
||
13 years ago
|
//compositeScreen(dst, dstRowStride, src, srcRowStride, mask, maskRowStride, rows, cols, opacity);
|
||
13 years ago
|
break;
|
||
|
case COMPOSITE_OVERLAY:
|
||
13 years ago
|
//compositeOverlay(dst, dstRowStride, src, srcRowStride, mask, maskRowStride, rows, cols, opacity);
|
||
13 years ago
|
break;
|
||
|
case COMPOSITE_ERASE:
|
||
13 years ago
|
compositeErase(dst, dstRowStride, src, srcRowStride, mask, maskRowStride, rows, cols, opacity);
|
||
13 years ago
|
break;
|
||
|
case COMPOSITE_DODGE:
|
||
13 years ago
|
//compositeDodge(dst, dstRowStride, src, srcRowStride, mask, maskRowStride, rows, cols, opacity);
|
||
13 years ago
|
break;
|
||
|
case COMPOSITE_BURN:
|
||
13 years ago
|
//compositeBurn(dst, dstRowStride, src, srcRowStride, mask, maskRowStride, rows, cols, opacity);
|
||
13 years ago
|
break;
|
||
|
case COMPOSITE_ALPHA_DARKEN:
|
||
|
abstractCompositeAlphaDarken<TQ_UINT16, U16Mult, Uint8ToU16, U16OpacityTest,
|
||
|
CHANNEL_ALPHA, NUM_COLOR_CHANNELS, NUM_CHANNELS>(
|
||
13 years ago
|
dst, dstRowStride, src, srcRowStride, mask, maskRowStride,
|
||
13 years ago
|
rows, cols, opacity, U16Mult(), Uint8ToU16(), U16OpacityTest());
|
||
|
break;
|
||
|
default:
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
KisCompositeOpList KisLabColorSpace::userVisiblecompositeOps() const
|
||
|
{
|
||
|
KisCompositeOpList list;
|
||
|
|
||
|
list.append(KisCompositeOp(COMPOSITE_OVER));
|
||
|
list.append(KisCompositeOp(COMPOSITE_ALPHA_DARKEN));
|
||
|
|
||
|
return list;
|
||
|
}
|
||
|
|
||
|
TQString KisLabColorSpace::channelValueText(const TQ_UINT8 *U8_pixel, TQ_UINT32 channelIndex) const
|
||
|
{
|
||
|
const Pixel *pix = reinterpret_cast<const Pixel *>(U8_pixel);
|
||
|
Q_ASSERT(channelIndex < nChannels());
|
||
|
switch(channelIndex)
|
||
|
{
|
||
|
case CHANNEL_L:
|
||
|
return TQString().setNum(pix->lightness);
|
||
|
case CHANNEL_A:
|
||
|
return TQString().setNum(pix->a);
|
||
|
case CHANNEL_B:
|
||
|
return TQString().setNum(pix->b);
|
||
|
case CHANNEL_ALPHA:
|
||
|
return TQString().setNum(pix->alpha);
|
||
|
default:
|
||
|
return TQString("Error");
|
||
|
}
|
||
|
}
|
||
|
|
||
|
TQString KisLabColorSpace::normalisedChannelValueText(const TQ_UINT8 *U8_pixel, TQ_UINT32 channelIndex) const
|
||
|
{
|
||
|
const Pixel *pix = reinterpret_cast<const Pixel *>(U8_pixel);
|
||
|
Q_ASSERT(channelIndex < nChannels());
|
||
|
|
||
|
// These convert from lcms encoded format to standard ranges.
|
||
|
|
||
|
switch(channelIndex)
|
||
|
{
|
||
|
case CHANNEL_L:
|
||
|
return TQString().setNum(100.0 * static_cast<float>(pix->lightness) / MAX_CHANNEL_L);
|
||
|
case CHANNEL_A:
|
||
|
return TQString().setNum(100.0 * ((static_cast<float>(pix->a) - CHANNEL_AB_ZERO_OFFSET) / MAX_CHANNEL_AB));
|
||
|
case CHANNEL_B:
|
||
|
return TQString().setNum(100.0 * ((static_cast<float>(pix->b) - CHANNEL_AB_ZERO_OFFSET) / MAX_CHANNEL_AB));
|
||
|
case CHANNEL_ALPHA:
|
||
|
return TQString().setNum(100.0 * static_cast<float>(pix->alpha) / UINT16_MAX);
|
||
|
default:
|
||
|
return TQString("Error");
|
||
|
}
|
||
|
}
|
||
|
|