1 files changed, 152 insertions, 0 deletions
diff --git a/chalk/plugins/filters/unsharp/kis_unsharp_filter.cpp b/chalk/plugins/filters/unsharp/kis_unsharp_filter.cpp
new file mode 100644
index 000000000..845262b17
--- /dev/null
+++ b/chalk/plugins/filters/unsharp/kis_unsharp_filter.cpp
@@ -0,0 +1,152 @@
+/*
+ * This file is part of Chalk
+ *
+ * Copyright (c) 2006 Cyrille Berger <cberger@cberger.net>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include "kis_unsharp_filter.h"
+
+#include <kcombobox.h>
+#include <knuminput.h>
+
+#include <kis_autobrush_resource.h>
+#include <kis_convolution_painter.h>
+#include <kis_iterators_pixel.h>
+
+
+#include "kis_wdg_unsharp.h"
+#include "wdgunsharp.h"
+
+KisKernelSP kernelFromTQImage(const TQImage& img)
+{
+    KisKernelSP k = new KisKernel;
+    k->width = img.width();
+    k->height = img.height();
+    k->offset = 0;
+    uint count = k->width * k->height;
+    k->data = new TQ_INT32[count];
+    TQ_INT32* itData = k->data;
+    TQ_UINT8* itImg = (TQ_UINT8*)img.bits();
+    k->factor = 0;
+    for(uint i = 0; i < count; ++i , ++itData, itImg+=4)
+    {
+        *itData = 255 - ( *itImg + *(itImg+1) + *(itImg+2) ) / 3;
+        k->factor += *itData;
+    }
+    return k;
+}
+
+
+KisUnsharpFilter::KisUnsharpFilter() : KisFilter(id(), "enhance", i18n("&Unsharp Mask..."))
+{
+}
+
+KisFilterConfigWidget * KisUnsharpFilter::createConfigurationWidget(TQWidget* parent, KisPaintDeviceSP )
+{
+    return new KisWdgUnsharp(this, parent, "configuration of color to alpha");
+}
+
+KisFilterConfiguration* KisUnsharpFilter::configuration(TQWidget* w)
+{
+    KisWdgUnsharp * wCTA = dynamic_cast<KisWdgUnsharp*>(w);
+    KisFilterConfiguration* config = new KisFilterConfiguration(id().id(), 1);
+    if(wCTA)
+    {
+        config->setProperty("halfSize", wCTA->widget()->intHalfSize->value() );
+        config->setProperty("amount", wCTA->widget()->doubleAmount->value() );
+        config->setProperty("threshold", wCTA->widget()->intThreshold->value() );
+    }
+    return config;
+    return 0;
+}
+
+void KisUnsharpFilter::process(KisPaintDeviceSP src, KisPaintDeviceSP dst, KisFilterConfiguration* config, const TQRect& rect)
+{
+    Q_ASSERT(src != 0);
+    Q_ASSERT(dst != 0);
+    
+    setProgressTotalSteps(rect.width() * rect.height());
+
+    if(!config) config = new KisFilterConfiguration(id().id(), 1);
+    
+    TQVariant value;
+    uint halfSize = (config->getProperty("halfSize", value)) ? value.toUInt() : 4;
+    uint size = 2 * halfSize + 1;
+    double amount = (config->getProperty("amount", value)) ? value.toDouble() : 0.5;
+    uint threshold = (config->getProperty("threshold", value)) ? value.toUInt() : 10;
+    
+    kdDebug() << " brush size = " << size << " " << halfSize << endl;
+    KisAutobrushShape* kas = new KisAutobrushCircleShape(size, size , halfSize, halfSize);
+    
+    TQImage mask;
+    kas->createBrush(&mask);
+    
+    KisKernelSP kernel = kernelFromTQImage(mask); // TODO: for 1.6 reuse the chalk's core function for creating kernel : KisKernel::fromTQImage
+    
+    KisPaintDeviceSP interm = new KisPaintDevice(*src);
+    KisColorSpace * cs = src->colorSpace();
+
+    KisConvolutionPainter painter( interm );
+    painter.beginTransaction("bouuh");
+    painter.applyMatrix(kernel, rect.x(), rect.y(), rect.width(), rect.height(), BORDER_REPEAT);
+    
+    if (painter.cancelRequested()) {
+        cancel();
+    }
+    
+    KisHLineIteratorPixel dstIt = dst->createHLineIterator(rect.x(), rect.y(), rect.width(), true );
+    KisHLineIteratorPixel srcIt = src->createHLineIterator(rect.x(), rect.y(), rect.width(), false);
+    KisHLineIteratorPixel intermIt = interm->createHLineIterator(rect.x(), rect.y(), rect.width(), false);
+
+    TQ_UINT8 *colors[2];
+    
+    int pixelsProcessed = 0;
+    TQ_INT32 weights[2];
+/*    weights[0] = 128;
+    TQ_INT32 factor = (TQ_UINT32) 128 / amount;
+    weights[1] = (factor - 128);*/
+    TQ_INT32 factor = 128;
+    weights[0] = factor * ( 1. + amount);
+    weights[1] = -factor * amount;
+    kdDebug() << (int) weights[0] << " " << (int)weights[1] << " " << factor << endl;
+    for( int j = 0; j < rect.height(); j++)
+    {
+        while( ! srcIt.isDone() )
+        {
+            if(srcIt.isSelected())
+            {
+                TQ_UINT8 diff = cs->difference(srcIt.oldRawData(), intermIt.rawData());
+                if( diff > threshold)
+                {
+                    colors[0] = srcIt.rawData();
+                    colors[1] = intermIt.rawData();
+                    cs->convolveColors(colors, weights, KisChannelInfo::FLAG_COLOR, dstIt.rawData(),  factor, 0, 2 );
+                }
+            }
+            setProgress(++pixelsProcessed);
+            ++srcIt;
+            ++dstIt;
+            ++intermIt;
+        }
+        srcIt.nextRow();
+        dstIt.nextRow();
+        intermIt.nextRow();
+    }
+
+
+    setProgressDone(); // Must be called even if you don't really support progression
+}