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153 lines
5.1 KiB
153 lines
5.1 KiB
/*
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* This file is part of Chalk
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*
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* Copyright (c) 2006 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 "kis_unsharp_filter.h"
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#include <kcombobox.h>
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#include <knuminput.h>
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#include <kis_autobrush_resource.h>
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#include <kis_convolution_painter.h>
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#include <kis_iterators_pixel.h>
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#include "kis_wdg_unsharp.h"
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#include "wdgunsharp.h"
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KisKernelSP kernelFromTQImage(const TQImage& img)
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{
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KisKernelSP k = new KisKernel;
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k->width = img.width();
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k->height = img.height();
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k->offset = 0;
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uint count = k->width * k->height;
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k->data = new TQ_INT32[count];
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TQ_INT32* itData = k->data;
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TQ_UINT8* itImg = (TQ_UINT8*)img.bits();
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k->factor = 0;
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for(uint i = 0; i < count; ++i , ++itData, itImg+=4)
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{
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*itData = 255 - ( *itImg + *(itImg+1) + *(itImg+2) ) / 3;
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k->factor += *itData;
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}
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return k;
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}
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KisUnsharpFilter::KisUnsharpFilter() : KisFilter(id(), "enhance", i18n("&Unsharp Mask..."))
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{
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}
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KisFilterConfigWidget * KisUnsharpFilter::createConfigurationWidget(TQWidget* parent, KisPaintDeviceSP )
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{
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return new KisWdgUnsharp(this, parent, "configuration of color to alpha");
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}
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KisFilterConfiguration* KisUnsharpFilter::configuration(TQWidget* w)
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{
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KisWdgUnsharp * wCTA = dynamic_cast<KisWdgUnsharp*>(w);
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KisFilterConfiguration* config = new KisFilterConfiguration(id().id(), 1);
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if(wCTA)
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{
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config->setProperty("halfSize", wCTA->widget()->intHalfSize->value() );
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config->setProperty("amount", wCTA->widget()->doubleAmount->value() );
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config->setProperty("threshold", wCTA->widget()->intThreshold->value() );
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}
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return config;
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return 0;
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}
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void KisUnsharpFilter::process(KisPaintDeviceSP src, KisPaintDeviceSP dst, KisFilterConfiguration* config, const TQRect& rect)
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{
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Q_ASSERT(src != 0);
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Q_ASSERT(dst != 0);
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setProgressTotalSteps(rect.width() * rect.height());
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if(!config) config = new KisFilterConfiguration(id().id(), 1);
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TQVariant value;
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uint halfSize = (config->getProperty("halfSize", value)) ? value.toUInt() : 4;
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uint size = 2 * halfSize + 1;
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double amount = (config->getProperty("amount", value)) ? value.toDouble() : 0.5;
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uint threshold = (config->getProperty("threshold", value)) ? value.toUInt() : 10;
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kdDebug() << " brush size = " << size << " " << halfSize << endl;
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KisAutobrushShape* kas = new KisAutobrushCircleShape(size, size , halfSize, halfSize);
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TQImage mask;
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kas->createBrush(&mask);
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KisKernelSP kernel = kernelFromTQImage(mask); // TODO: for 1.6 reuse the chalk's core function for creating kernel : KisKernel::fromTQImage
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KisPaintDeviceSP interm = new KisPaintDevice(*src);
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KisColorSpace * cs = src->colorSpace();
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KisConvolutionPainter painter( interm );
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painter.beginTransaction("bouuh");
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painter.applyMatrix(kernel, rect.x(), rect.y(), rect.width(), rect.height(), BORDER_REPEAT);
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if (painter.cancelRequested()) {
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cancel();
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}
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KisHLineIteratorPixel dstIt = dst->createHLineIterator(rect.x(), rect.y(), rect.width(), true );
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KisHLineIteratorPixel srcIt = src->createHLineIterator(rect.x(), rect.y(), rect.width(), false);
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KisHLineIteratorPixel intermIt = interm->createHLineIterator(rect.x(), rect.y(), rect.width(), false);
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TQ_UINT8 *colors[2];
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int pixelsProcessed = 0;
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TQ_INT32 weights[2];
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/* weights[0] = 128;
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TQ_INT32 factor = (TQ_UINT32) 128 / amount;
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weights[1] = (factor - 128);*/
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TQ_INT32 factor = 128;
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weights[0] = factor * ( 1. + amount);
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weights[1] = -factor * amount;
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kdDebug() << (int) weights[0] << " " << (int)weights[1] << " " << factor << endl;
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for( int j = 0; j < rect.height(); j++)
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{
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while( ! srcIt.isDone() )
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{
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if(srcIt.isSelected())
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{
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TQ_UINT8 diff = cs->difference(srcIt.oldRawData(), intermIt.rawData());
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if( diff > threshold)
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{
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colors[0] = srcIt.rawData();
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colors[1] = intermIt.rawData();
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cs->convolveColors(colors, weights, KisChannelInfo::FLAG_COLOR, dstIt.rawData(), factor, 0, 2 );
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}
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}
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setProgress(++pixelsProcessed);
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++srcIt;
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++dstIt;
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++intermIt;
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}
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srcIt.nextRow();
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dstIt.nextRow();
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intermIt.nextRow();
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}
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setProgressDone(); // Must be called even if you don't really support progression
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}
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