You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
165 lines
4.2 KiB
165 lines
4.2 KiB
/*
|
|
* Copyright (c) 2005-2006 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_stream.h"
|
|
|
|
TIFFStreamContigBase::TIFFStreamContigBase( uint8* src, uint16 depth, uint32 lineSize ) : TIFFStreamBase(depth), m_src(src), m_lineSize(lineSize) { restart(); }
|
|
|
|
void TIFFStreamContigBase::restart()
|
|
{
|
|
m_srcit = m_src;
|
|
m_posinc = 8;
|
|
}
|
|
|
|
void TIFFStreamContigBase::moveToLine(uint32 lineNumber)
|
|
{
|
|
m_srcit = m_src + lineNumber * m_lineSize;
|
|
m_posinc = 8;
|
|
}
|
|
|
|
uint32 TIFFStreamContigBelow16::nextValue()
|
|
{
|
|
uint8 remain;
|
|
uint32 value;
|
|
remain = m_depth;
|
|
value = 0;
|
|
while (remain > 0)
|
|
{
|
|
uint8 toread;
|
|
toread = remain;
|
|
if (toread > m_posinc) toread = m_posinc;
|
|
remain -= toread;
|
|
m_posinc -= toread;
|
|
value = (value << toread) | (( (*m_srcit) >> (m_posinc) ) & ( ( 1 << toread ) - 1 ) );
|
|
if (m_posinc == 0)
|
|
{
|
|
m_srcit++;
|
|
m_posinc=8;
|
|
}
|
|
}
|
|
return value;
|
|
}
|
|
|
|
uint32 TIFFStreamContigBelow32::nextValue()
|
|
{
|
|
uint8 remain;
|
|
uint32 value;
|
|
remain = m_depth;
|
|
value = 0;
|
|
while (remain > 0)
|
|
{
|
|
uint8 toread;
|
|
toread = remain;
|
|
if (toread > m_posinc) toread = m_posinc;
|
|
remain -= toread;
|
|
m_posinc -= toread;
|
|
value = (value) | ( (( (*m_srcit) >> (m_posinc) ) & ( ( 1 << toread ) - 1 ) ) << ( m_depth - 8 - remain ) );
|
|
if (m_posinc == 0)
|
|
{
|
|
m_srcit++;
|
|
m_posinc=8;
|
|
}
|
|
}
|
|
return value;
|
|
}
|
|
|
|
uint32 TIFFStreamContigAbove32::nextValue()
|
|
{
|
|
uint8 remain;
|
|
uint32 value;
|
|
remain = m_depth;
|
|
value = 0;
|
|
while (remain > 0)
|
|
{
|
|
uint8 toread;
|
|
toread = remain;
|
|
if (toread > m_posinc) toread = m_posinc;
|
|
remain -= toread;
|
|
m_posinc -= toread;
|
|
if(remain < 32 )
|
|
{
|
|
value = (value) | ( (( (*m_srcit) >> (m_posinc) ) & ( ( 1 << toread ) - 1 ) ) << ( 24 - remain ) );
|
|
}
|
|
if (m_posinc == 0)
|
|
{
|
|
m_srcit++;
|
|
m_posinc=8;
|
|
}
|
|
}
|
|
return value;
|
|
}
|
|
|
|
TIFFStreamSeperate::TIFFStreamSeperate( uint8** srcs, uint8 nb_samples ,uint16 depth, uint32* lineSize) : TIFFStreamBase(depth), m_nb_samples(nb_samples)
|
|
{
|
|
streams = new TIFFStreamContigBase*[nb_samples];
|
|
if(depth < 16)
|
|
{
|
|
for(uint8 i = 0; i < m_nb_samples; i++)
|
|
{
|
|
streams[i] = new TIFFStreamContigBelow16(srcs[i], depth, lineSize[i]);
|
|
}
|
|
} else if( depth < 32 )
|
|
{
|
|
for(uint8 i = 0; i < m_nb_samples; i++)
|
|
{
|
|
streams[i] = new TIFFStreamContigBelow32(srcs[i], depth, lineSize[i]);
|
|
}
|
|
} else {
|
|
for(uint8 i = 0; i < m_nb_samples; i++)
|
|
{
|
|
streams[i] = new TIFFStreamContigAbove32(srcs[i], depth, lineSize[i]);
|
|
}
|
|
}
|
|
restart();
|
|
}
|
|
|
|
TIFFStreamSeperate::~TIFFStreamSeperate()
|
|
{
|
|
for(uint8 i = 0; i < m_nb_samples; i++)
|
|
{
|
|
delete streams[i];
|
|
}
|
|
delete[] streams;
|
|
}
|
|
|
|
uint32 TIFFStreamSeperate::nextValue()
|
|
{
|
|
uint32 value = streams[ m_current_sample ]->nextValue();
|
|
if( (++m_current_sample) >= m_nb_samples)
|
|
m_current_sample = 0;
|
|
return value;
|
|
}
|
|
|
|
void TIFFStreamSeperate::restart()
|
|
{
|
|
m_current_sample = 0;
|
|
for(uint8 i = 0; i < m_nb_samples; i++)
|
|
{
|
|
streams[i]->restart();
|
|
}
|
|
}
|
|
|
|
void TIFFStreamSeperate::moveToLine(uint32 lineNumber)
|
|
{
|
|
for(uint8 i = 0; i < m_nb_samples; i++)
|
|
{
|
|
streams[i]->moveToLine(lineNumber);
|
|
}
|
|
}
|