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171 lines
6.9 KiB
171 lines
6.9 KiB
/*
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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,
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* Boston, MA 02110-1301, USA.
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*/
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#include "kis_tiff_ycbcr_reader.h"
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#include <kis_iterators_pixel.h>
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#include <kis_paint_device.h>
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#include "kis_tiff_stream.h"
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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)
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{
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// Initialize the buffer
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TQ_INT32 imagewidth = device->image()->width();
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if(2*(imagewidth / 2) != imagewidth) imagewidth++;
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m_bufferWidth = imagewidth / m_hsub;
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TQ_INT32 imageheight = device->image()->height();
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if(2*(imageheight / 2) != imageheight) imageheight++;
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m_bufferHeight = imageheight / m_vsub;
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m_bufferCb = new TQ_UINT8[ m_bufferWidth * m_bufferHeight ];
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m_bufferCr = new TQ_UINT8[ m_bufferWidth * m_bufferHeight ];
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}
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KisTIFFYCbCrReaderTarget8Bit::~KisTIFFYCbCrReaderTarget8Bit()
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{
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delete[] m_bufferCb;
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delete[] m_bufferCr;
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}
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uint KisTIFFYCbCrReaderTarget8Bit::copyDataToChannels( TQ_UINT32 x, TQ_UINT32 y, TQ_UINT32 dataWidth, TIFFStreamBase* tiffstream)
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{
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int numcols = dataWidth / m_hsub;
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double coeff = TQ_UINT8_MAX / (double)( pow(2, sourceDepth() ) - 1 );
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// kdDebug(41008) << " depth expension coefficient : " << coeff << endl;
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// kdDebug(41008) << " y = " << y << endl;
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uint buffPos = y / m_vsub * m_bufferWidth + x / m_hsub ;
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for(int index = 0; index < numcols; index++)
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{
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KisHLineIterator it = paintDevice() -> createHLineIterator(x + m_hsub * index, y, m_hsub, true);
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for( int vindex = 0; vindex < m_vsub; vindex++)
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{
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while( !it.isDone() )
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{
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TQ_UINT8 *d = it.rawData();
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d[0] = (TQ_UINT8)( tiffstream->nextValue() * coeff );
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d[3] = TQ_UINT8_MAX;
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for(int k = 0; k < nbExtraSamples(); k++)
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{
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if(k == alphaPos())
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d[3] = (TQ_UINT32) ( tiffstream->nextValue() * coeff );
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else
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tiffstream->nextValue();
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}
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++it;
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}
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it.nextRow();
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}
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m_bufferCb[ buffPos ] = (TQ_UINT8)(tiffstream->nextValue() * coeff);
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m_bufferCr[ buffPos ] = (TQ_UINT8)(tiffstream->nextValue() * coeff);
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buffPos ++;
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}
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return m_vsub;
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}
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void KisTIFFYCbCrReaderTarget8Bit::finalize()
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{
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KisHLineIterator it = paintDevice() -> createHLineIterator(0, 0, paintDevice()->image()->width(), true);
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for(int y = 0; y < paintDevice()->image()->height(); y++)
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{
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int x = 0;
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while(!it.isDone())
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{
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TQ_UINT8 *d = it.rawData();
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int index = x/m_hsub + y/m_vsub * m_bufferWidth;
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d[1] = m_bufferCb[ index ];
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d[2] = m_bufferCr[ index ];
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++it; ++x;
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}
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it.nextRow();
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}
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}
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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)
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{
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// Initialize the buffer
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TQ_INT32 imagewidth = device->image()->width();
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if(2*(imagewidth / 2) != imagewidth) imagewidth++;
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m_bufferWidth = imagewidth / m_hsub;
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TQ_INT32 imageheight = device->image()->height();
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if(2*(imageheight / 2) != imageheight) imageheight++;
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m_bufferHeight = imageheight / m_vsub;
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m_bufferCb = new TQ_UINT16[ m_bufferWidth * m_bufferHeight ];
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m_bufferCr = new TQ_UINT16[ m_bufferWidth * m_bufferHeight ];
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}
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KisTIFFYCbCrReaderTarget16Bit::~KisTIFFYCbCrReaderTarget16Bit()
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{
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delete[] m_bufferCb;
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delete[] m_bufferCr;
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}
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uint KisTIFFYCbCrReaderTarget16Bit::copyDataToChannels( TQ_UINT32 x, TQ_UINT32 y, TQ_UINT32 dataWidth, TIFFStreamBase* tiffstream)
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{
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int numcols = dataWidth / m_hsub;
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double coeff = TQ_UINT16_MAX / (double)( pow(2, sourceDepth() ) - 1 );
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// kdDebug(41008) << " depth expension coefficient : " << coeff << endl;
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// kdDebug(41008) << " y = " << y << endl;
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uint buffPos = y / m_vsub * m_bufferWidth + x / m_hsub ;
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for(int index = 0; index < numcols; index++)
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{
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KisHLineIterator it = paintDevice() -> createHLineIterator(x + m_hsub * index, y, m_hsub, true);
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for( int vindex = 0; vindex < m_vsub; vindex++)
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{
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while( !it.isDone() )
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{
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TQ_UINT16 *d = reinterpret_cast<TQ_UINT16 *>(it.rawData());
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d[0] = (TQ_UINT16)( tiffstream->nextValue() * coeff );
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d[3] = TQ_UINT16_MAX;
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for(int k = 0; k < nbExtraSamples(); k++)
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{
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if(k == alphaPos())
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d[3] = (TQ_UINT32) ( tiffstream->nextValue() * coeff );
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else
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tiffstream->nextValue();
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}
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++it;
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}
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it.nextRow();
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}
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m_bufferCb[ buffPos ] = (TQ_UINT16)(tiffstream->nextValue() * coeff);
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m_bufferCr[ buffPos ] = (TQ_UINT16)(tiffstream->nextValue() * coeff);
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buffPos ++;
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}
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return m_vsub;
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}
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void KisTIFFYCbCrReaderTarget16Bit::finalize()
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{
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KisHLineIterator it = paintDevice() -> createHLineIterator(0, 0, paintDevice()->image()->width(), true);
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for(int y = 0; y < paintDevice()->image()->height(); y++)
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{
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int x = 0;
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while(!it.isDone())
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{
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TQ_UINT16 *d = reinterpret_cast<TQ_UINT16 *>(it.rawData());
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int index = x/m_hsub + y/m_vsub * m_bufferWidth;
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d[1] = m_bufferCb[ index ];
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d[2] = m_bufferCr[ index ];
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++it; ++x;
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}
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it.nextRow();
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}
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}
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