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/*
* 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();
}
}
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