1 files changed, 170 insertions, 0 deletions
diff --git a/filters/chalk/tiff/kis_tiff_ycbcr_reader.cpp b/filters/chalk/tiff/kis_tiff_ycbcr_reader.cpp
new file mode 100644
index 000000000..ce5e4ae95
--- /dev/null
+++ b/filters/chalk/tiff/kis_tiff_ycbcr_reader.cpp
@@ -0,0 +1,170 @@
+/*
+ *  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_tiff_ycbcr_reader.h"
+
+#include <kis_iterators_pixel.h>
+#include <kis_paint_device.h>
+
+#include "kis_tiff_stream.h"
+
+
+KisTIFFYCbCrReaderTarget8Bit::KisTIFFYCbCrReaderTarget8Bit( KisPaintDeviceSP device, TQ_UINT8* poses, int8 alphapos, uint8 sourceDepth, uint8 nbcolorssamples, uint8 extrasamplescount,  cmsHTRANSFORM transformProfile, KisTIFFPostProcessor* postprocessor, uint16 hsub, uint16 vsub, KisTIFFYCbCr::Position position ) : KisTIFFReaderBase(device, poses, alphapos, sourceDepth,  nbcolorssamples, extrasamplescount, transformProfile, postprocessor), m_hsub(hsub), m_vsub(vsub), m_position(position)
+{
+    // Initialize the buffer
+    TQ_INT32 imagewidth = device->image()->width();
+    if(2*(imagewidth / 2) != imagewidth) imagewidth++;
+    m_bufferWidth = imagewidth / m_hsub;
+    TQ_INT32 imageheight = device->image()->height();
+    if(2*(imageheight / 2) != imageheight) imageheight++;
+    m_bufferHeight = imageheight / m_vsub;
+    m_bufferCb = new TQ_UINT8[ m_bufferWidth * m_bufferHeight ];
+    m_bufferCr = new TQ_UINT8[ m_bufferWidth * m_bufferHeight ];
+}
+
+KisTIFFYCbCrReaderTarget8Bit::~KisTIFFYCbCrReaderTarget8Bit()
+{
+    delete[] m_bufferCb;
+    delete[] m_bufferCr;
+}
+
+uint KisTIFFYCbCrReaderTarget8Bit::copyDataToChannels( TQ_UINT32 x, TQ_UINT32 y, TQ_UINT32 dataWidth, TIFFStreamBase* tiffstream)
+{
+    int numcols = dataWidth / m_hsub;
+    double coeff = TQ_UINT8_MAX / (double)( pow(2, sourceDepth() ) - 1 );
+//     kdDebug(41008) << " depth expension coefficient : " << coeff << endl;
+//     kdDebug(41008) << " y = " << y << endl;
+    uint buffPos = y / m_vsub * m_bufferWidth + x / m_hsub ;
+    for(int index = 0; index < numcols; index++)
+    {
+        KisHLineIterator it = paintDevice() -> createHLineIterator(x + m_hsub * index, y, m_hsub, true);
+        for( int vindex = 0; vindex < m_vsub; vindex++)
+        {
+            while( !it.isDone() )
+            {
+                TQ_UINT8 *d = it.rawData();
+                d[0] = (TQ_UINT8)( tiffstream->nextValue() * coeff );
+                d[3] = TQ_UINT8_MAX;
+                for(int k = 0; k < nbExtraSamples(); k++)
+                {
+                    if(k == alphaPos())
+                        d[3] = (TQ_UINT32) ( tiffstream->nextValue() * coeff );
+                    else
+                        tiffstream->nextValue();
+                }
+                ++it;
+            }
+            it.nextRow();
+        }
+        m_bufferCb[ buffPos ] = (TQ_UINT8)(tiffstream->nextValue() * coeff);
+        m_bufferCr[ buffPos ] = (TQ_UINT8)(tiffstream->nextValue() * coeff);
+        buffPos ++;
+    }
+    return m_vsub;
+}
+
+void KisTIFFYCbCrReaderTarget8Bit::finalize()
+{
+    KisHLineIterator it = paintDevice() -> createHLineIterator(0, 0, paintDevice()->image()->width(), true);
+    for(int y = 0; y < paintDevice()->image()->height(); y++)
+    {
+        int x = 0;
+        while(!it.isDone())
+        {
+            TQ_UINT8 *d = it.rawData();
+            int index =  x/m_hsub + y/m_vsub * m_bufferWidth;
+            d[1] = m_bufferCb[ index ];
+            d[2] = m_bufferCr[ index ];
+            ++it; ++x;
+        }
+        it.nextRow();
+    }
+}
+
+KisTIFFYCbCrReaderTarget16Bit::KisTIFFYCbCrReaderTarget16Bit( KisPaintDeviceSP device, TQ_UINT8* poses, int8 alphapos, uint8 sourceDepth, uint8 nbcolorssamples, uint8 extrasamplescount,  cmsHTRANSFORM transformProfile, KisTIFFPostProcessor* postprocessor, uint16 hsub, uint16 vsub, KisTIFFYCbCr::Position position ) : KisTIFFReaderBase(device, poses, alphapos, sourceDepth,  nbcolorssamples, extrasamplescount, transformProfile, postprocessor), m_hsub(hsub), m_vsub(vsub), m_position(position)
+{
+    // Initialize the buffer
+    TQ_INT32 imagewidth = device->image()->width();
+    if(2*(imagewidth / 2) != imagewidth) imagewidth++;
+    m_bufferWidth = imagewidth / m_hsub;
+    TQ_INT32 imageheight = device->image()->height();
+    if(2*(imageheight / 2) != imageheight) imageheight++;
+    m_bufferHeight = imageheight / m_vsub;
+    m_bufferCb = new TQ_UINT16[ m_bufferWidth * m_bufferHeight ];
+    m_bufferCr = new TQ_UINT16[ m_bufferWidth * m_bufferHeight ];
+}
+
+KisTIFFYCbCrReaderTarget16Bit::~KisTIFFYCbCrReaderTarget16Bit()
+{
+    delete[] m_bufferCb;
+    delete[] m_bufferCr;
+}
+
+uint KisTIFFYCbCrReaderTarget16Bit::copyDataToChannels( TQ_UINT32 x, TQ_UINT32 y, TQ_UINT32 dataWidth, TIFFStreamBase* tiffstream)
+{
+    int numcols = dataWidth / m_hsub;
+    double coeff = TQ_UINT16_MAX / (double)( pow(2, sourceDepth() ) - 1 );
+//     kdDebug(41008) << " depth expension coefficient : " << coeff << endl;
+//     kdDebug(41008) << " y = " << y << endl;
+    uint buffPos = y / m_vsub * m_bufferWidth + x / m_hsub ;
+    for(int index = 0; index < numcols; index++)
+    {
+        KisHLineIterator it = paintDevice() -> createHLineIterator(x + m_hsub * index, y, m_hsub, true);
+        for( int vindex = 0; vindex < m_vsub; vindex++)
+        {
+            while( !it.isDone() )
+            {
+                TQ_UINT16 *d = reinterpret_cast<TQ_UINT16 *>(it.rawData());
+                d[0] = (TQ_UINT16)( tiffstream->nextValue() * coeff );
+                d[3] = TQ_UINT16_MAX;
+                for(int k = 0; k < nbExtraSamples(); k++)
+                {
+                    if(k == alphaPos())
+                        d[3] = (TQ_UINT32) ( tiffstream->nextValue() * coeff );
+                    else
+                        tiffstream->nextValue();
+                }
+                ++it;
+            }
+            it.nextRow();
+        }
+        m_bufferCb[ buffPos ] = (TQ_UINT16)(tiffstream->nextValue() * coeff);
+        m_bufferCr[ buffPos ] = (TQ_UINT16)(tiffstream->nextValue() * coeff);
+        buffPos ++;
+    }
+    return m_vsub;
+}
+
+void KisTIFFYCbCrReaderTarget16Bit::finalize()
+{
+    KisHLineIterator it = paintDevice() -> createHLineIterator(0, 0, paintDevice()->image()->width(), true);
+    for(int y = 0; y < paintDevice()->image()->height(); y++)
+    {
+        int x = 0;
+        while(!it.isDone())
+        {
+            TQ_UINT16 *d = reinterpret_cast<TQ_UINT16 *>(it.rawData());
+            int index =  x/m_hsub + y/m_vsub * m_bufferWidth;
+            d[1] = m_bufferCb[ index ];
+            d[2] = m_bufferCr[ index ];
+            ++it; ++x;
+        }
+        it.nextRow();
+    }
+}