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316 lines
9.7 KiB
316 lines
9.7 KiB
/*
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* This file is part of Chalk
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*
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* Copyright (c) 2004 Cyrille Berger <cberger@cberger.net>
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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 <math.h>
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#include <stdlib.h>
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#include <string.h>
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#include <tqslider.h>
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#include <tqpoint.h>
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#include <tqcolor.h>
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#include <tdelocale.h>
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#include <kiconloader.h>
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#include <kinstance.h>
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#include <tdemessagebox.h>
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#include <kstandarddirs.h>
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#include <tdetempfile.h>
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#include <kdebug.h>
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#include <kgenericfactory.h>
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#include <kis_doc.h>
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#include <kis_image.h>
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#include <kis_layer.h>
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#include <kis_global.h>
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#include <kis_types.h>
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#include <kis_iterators_pixel.h>
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#include <kis_colorspace.h>
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#include <kis_painter.h>
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#include <kis_selection.h>
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#include "kis_histogram.h"
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#include "kis_basic_histogram_producers.h"
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#include "colorsfilters.h"
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#include "kis_brightness_contrast_filter.h"
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#include "kis_perchannel_filter.h"
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typedef KGenericFactory<ColorsFilters> ColorsFiltersFactory;
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K_EXPORT_COMPONENT_FACTORY( chalkcolorsfilters, ColorsFiltersFactory( "chalk" ) )
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ColorsFilters::ColorsFilters(TQObject *parent, const char *name, const TQStringList &)
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: KParts::Plugin(parent, name)
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{
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setInstance(ColorsFiltersFactory::instance());
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if (parent->inherits("KisFilterRegistry")) {
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KisFilterRegistry * manager = dynamic_cast<KisFilterRegistry *>(parent);
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manager->add(new KisBrightnessContrastFilter());
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manager->add(new KisAutoContrast());
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manager->add(new KisPerChannelFilter());
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manager->add(new KisDesaturateFilter());
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}
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}
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ColorsFilters::~ColorsFilters()
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{
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}
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//==================================================================
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KisAutoContrast::KisAutoContrast() : KisFilter(id(), "adjust", i18n("&Auto Contrast"))
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{
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}
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bool KisAutoContrast::workWith(KisColorSpace* cs)
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{
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return (cs->getProfile() != 0);
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}
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void KisAutoContrast::process(KisPaintDeviceSP src, KisPaintDeviceSP dst, KisFilterConfiguration* , const TQRect& rect)
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{
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// initialize
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KisHistogramProducerSP producer = new KisGenericLabHistogramProducer();
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KisHistogram histogram(src, producer, LINEAR);
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int minvalue = int(255*histogram.calculations().getMin() + 0.5);
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int maxvalue = int(255*histogram.calculations().getMax() + 0.5);
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if(maxvalue>255)
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maxvalue= 255;
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histogram.setChannel(0);
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int twoPercent = int(0.005*histogram.calculations().getCount());
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int pixCount = 0;
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int binnum = 0;
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while(binnum<histogram.producer()->numberOfBins())
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{
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pixCount += histogram.getValue(binnum);
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if(pixCount > twoPercent)
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{
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minvalue = binnum;
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break;
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}
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binnum++;
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}
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pixCount = 0;
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binnum = histogram.producer()->numberOfBins()-1;
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while(binnum>0)
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{
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pixCount += histogram.getValue(binnum);
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if(pixCount > twoPercent)
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{
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maxvalue = binnum;
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break;
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}
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binnum--;
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}
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// build the transferfunction
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int diff = maxvalue - minvalue;
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KisBrightnessContrastFilterConfiguration * cfg = new KisBrightnessContrastFilterConfiguration();
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for(int i=0; i <255; i++)
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cfg->transfer[i] = 0xFFFF;
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if (diff != 0)
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{
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for(int i=0; i <minvalue; i++)
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cfg->transfer[i] = 0x0;
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for(int i=minvalue; i <maxvalue; i++)
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{
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TQ_INT32 val = (i-minvalue)/diff;
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val = int((0xFFFF * (i-minvalue)) / diff);
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if(val >0xFFFF)
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val=0xFFFF;
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if(val <0)
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val = 0;
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cfg->transfer[i] = val;
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}
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for(int i=maxvalue; i <256; i++)
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cfg->transfer[i] = 0xFFFF;
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}
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KisSelectionSP dstSel = 0;
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if (dst != src) {
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KisPainter gc(dst);
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gc.bitBlt(rect.x(), rect.y(), COMPOSITE_COPY, src, rect.x(), rect.y(), rect.width(), rect.height());
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gc.end();
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if (src->hasSelection()) {
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dstSel = dst->selection();
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dst->setSelection(src->selection());
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}
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}
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// apply
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KisColorAdjustment *adj = src->colorSpace()->createBrightnessContrastAdjustment(cfg->transfer);
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KisRectIteratorPixel iter = dst->createRectIterator(rect.x(), rect.y(), rect.width(), rect.height(), true );
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setProgressTotalSteps(rect.width() * rect.height());
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TQ_INT32 pixelsProcessed = 0;
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while( ! iter.isDone() && !cancelRequested())
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{
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TQ_UINT32 npix=0, maxpix = iter.nConseqPixels();
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TQ_UINT8 selectedness = iter.selectedness();
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// The idea here is to handle stretches of completely selected and completely unselected pixels.
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// Partially selected pixels are handled one pixel at a time.
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switch(selectedness)
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{
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case MIN_SELECTED:
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while(iter.selectedness()==MIN_SELECTED && maxpix)
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{
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--maxpix;
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++iter;
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++npix;
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}
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pixelsProcessed += npix;
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break;
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case MAX_SELECTED:
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{
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TQ_UINT8 *firstPixel = iter.rawData();
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while(iter.selectedness()==MAX_SELECTED && maxpix)
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{
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--maxpix;
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if (maxpix != 0)
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++iter;
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++npix;
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}
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// adjust
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src->colorSpace()->applyAdjustment(firstPixel, firstPixel, adj, npix);
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pixelsProcessed += npix;
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++iter;
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break;
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}
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default:
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// adjust, but since it's partially selected we also only partially adjust
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src->colorSpace()->applyAdjustment(iter.oldRawData(), iter.rawData(), adj, 1);
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const TQ_UINT8 *pixels[2] = {iter.oldRawData(), iter.rawData()};
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TQ_UINT8 weights[2] = {(TQ_UINT8)(MAX_SELECTED - selectedness), selectedness};
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src->colorSpace()->mixColors(pixels, weights, 2, iter.rawData());
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++iter;
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pixelsProcessed++;
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break;
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}
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setProgress(pixelsProcessed);
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}
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// Restore selection
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if (src != dst && src->hasSelection()) {
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dst->setSelection(dstSel);
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}
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delete adj;
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setProgressDone();
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}
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//==================================================================
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KisDesaturateFilter::KisDesaturateFilter()
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: KisFilter(id(), "adjust", i18n("&Desaturate"))
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{
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m_lastCS = 0;
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m_adj = 0;
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}
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KisDesaturateFilter::~KisDesaturateFilter()
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{
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delete m_adj;
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}
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bool KisDesaturateFilter::workWith(KisColorSpace* cs)
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{
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return (cs->getProfile() != 0);
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}
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void KisDesaturateFilter::process(KisPaintDeviceSP src, KisPaintDeviceSP dst, KisFilterConfiguration* /*config*/, const TQRect& rect)
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{
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if (dst != src) {
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KisPainter gc(dst);
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gc.bitBlt(rect.x(), rect.y(), COMPOSITE_COPY, src, rect.x(), rect.y(), rect.width(), rect.height());
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gc.end();
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}
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if (m_adj == 0 || (m_lastCS && m_lastCS != src->colorSpace())) {
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m_adj = src->colorSpace()->createDesaturateAdjustment();
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m_lastCS = src->colorSpace();
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}
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KisRectIteratorPixel iter = dst->createRectIterator(rect.x(), rect.y(), rect.width(), rect.height(), true );
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setProgressTotalSteps(rect.width() * rect.height());
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TQ_INT32 pixelsProcessed = 0;
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while( ! iter.isDone() && !cancelRequested())
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{
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TQ_UINT32 npix=0, maxpix = iter.nConseqPixels();
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TQ_UINT8 selectedness = iter.selectedness();
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// The idea here is to handle stretches of completely selected and completely unselected pixels.
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// Partially selected pixels are handled one pixel at a time.
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switch(selectedness)
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{
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case MIN_SELECTED:
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while(iter.selectedness()==MIN_SELECTED && maxpix)
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{
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--maxpix;
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++iter;
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++npix;
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}
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pixelsProcessed += npix;
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break;
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case MAX_SELECTED:
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{
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TQ_UINT8 *firstPixel = iter.rawData();
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while(iter.selectedness()==MAX_SELECTED && maxpix)
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{
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--maxpix;
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if (maxpix != 0)
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++iter;
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++npix;
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}
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// adjust
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src->colorSpace()->applyAdjustment(firstPixel, firstPixel, m_adj, npix);
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pixelsProcessed += npix;
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++iter;
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break;
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}
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default:
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// adjust, but since it's partially selected we also only partially adjust
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src->colorSpace()->applyAdjustment(iter.oldRawData(), iter.rawData(), m_adj, 1);
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const TQ_UINT8 *pixels[2] = {iter.oldRawData(), iter.rawData()};
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TQ_UINT8 weights[2] = {(TQ_UINT8)(MAX_SELECTED - selectedness), selectedness};
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src->colorSpace()->mixColors(pixels, weights, 2, iter.rawData());
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++iter;
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pixelsProcessed++;
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break;
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}
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setProgress(pixelsProcessed);
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}
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setProgressDone();
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}
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