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.
535 lines
11 KiB
535 lines
11 KiB
/* This file is part of the KDE project
|
|
Copyright (C) 2002-2005 Nadeem Hasan <nhasan@kde.org>
|
|
|
|
This program is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License (LGPL) as published by the Free Software Foundation; either
|
|
version 2 of the License, or (at your option) any later version.
|
|
*/
|
|
|
|
#include "pcx.h"
|
|
|
|
#include <tqimage.h>
|
|
|
|
#include <kdebug.h>
|
|
|
|
static TQDataStream &operator>>( TQDataStream &s, RGB &rgb )
|
|
{
|
|
s >> rgb.r >> rgb.g >> rgb.b;
|
|
|
|
return s;
|
|
}
|
|
|
|
static TQDataStream &operator>>( TQDataStream &s, Palette &pal )
|
|
{
|
|
for ( int i=0; i<16; ++i )
|
|
s >> pal.rgb[ i ];
|
|
|
|
return s;
|
|
}
|
|
|
|
static TQDataStream &operator>>( TQDataStream &s, PCXHEADER &ph )
|
|
{
|
|
s >> ph.Manufacturer;
|
|
s >> ph.Version;
|
|
s >> ph.Encoding;
|
|
s >> ph.Bpp;
|
|
s >> ph.XMin >> ph.YMin >> ph.XMax >> ph.YMax;
|
|
s >> ph.HDpi >> ph.YDpi;
|
|
s >> ph.ColorMap;
|
|
s >> ph.Reserved;
|
|
s >> ph.NPlanes;
|
|
s >> ph.BytesPerLine;
|
|
s >> ph.PaletteInfo;
|
|
s >> ph.HScreenSize;
|
|
s >> ph.VScreenSize;
|
|
|
|
// Skip the rest of the header
|
|
TQ_UINT8 byte;
|
|
while ( s.device()->at() < 128 )
|
|
s >> byte;
|
|
|
|
return s;
|
|
}
|
|
|
|
static TQDataStream &operator<<( TQDataStream &s, const RGB &rgb )
|
|
{
|
|
s << rgb.r << rgb.g << rgb.b;
|
|
|
|
return s;
|
|
}
|
|
|
|
static TQDataStream &operator<<( TQDataStream &s, const Palette &pal )
|
|
{
|
|
for ( int i=0; i<16; ++i )
|
|
s << pal.rgb[ i ];
|
|
|
|
return s;
|
|
}
|
|
|
|
static TQDataStream &operator<<( TQDataStream &s, const PCXHEADER &ph )
|
|
{
|
|
s << ph.Manufacturer;
|
|
s << ph.Version;
|
|
s << ph.Encoding;
|
|
s << ph.Bpp;
|
|
s << ph.XMin << ph.YMin << ph.XMax << ph.YMax;
|
|
s << ph.HDpi << ph.YDpi;
|
|
s << ph.ColorMap;
|
|
s << ph.Reserved;
|
|
s << ph.NPlanes;
|
|
s << ph.BytesPerLine;
|
|
s << ph.PaletteInfo;
|
|
s << ph.HScreenSize;
|
|
s << ph.VScreenSize;
|
|
|
|
TQ_UINT8 byte = 0;
|
|
for ( int i=0; i<54; ++i )
|
|
s << byte;
|
|
|
|
return s;
|
|
}
|
|
|
|
PCXHEADER::PCXHEADER()
|
|
{
|
|
// Initialize all data to zero
|
|
TQByteArray dummy( 128 );
|
|
dummy.fill( 0 );
|
|
TQDataStream s( dummy, IO_ReadOnly );
|
|
s >> *this;
|
|
}
|
|
|
|
static void readLine( TQDataStream &s, TQByteArray &buf, const PCXHEADER &header )
|
|
{
|
|
TQ_UINT32 i=0;
|
|
TQ_UINT32 size = buf.size();
|
|
TQ_UINT8 byte, count;
|
|
|
|
if ( header.isCompressed() )
|
|
{
|
|
// Uncompress the image data
|
|
while ( i < size )
|
|
{
|
|
count = 1;
|
|
s >> byte;
|
|
if ( byte > 0xc0 )
|
|
{
|
|
count = byte - 0xc0;
|
|
s >> byte;
|
|
}
|
|
while ( count-- && i < size )
|
|
buf[ i++ ] = byte;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Image is not compressed (possible?)
|
|
while ( i < size )
|
|
{
|
|
s >> byte;
|
|
buf[ i++ ] = byte;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void readImage1( TQImage &img, TQDataStream &s, const PCXHEADER &header )
|
|
{
|
|
TQByteArray buf( header.BytesPerLine );
|
|
|
|
if(!img.create( header.width(), header.height(), 1, 2, TQImage::BigEndian ))
|
|
return;
|
|
|
|
for ( int y=0; y<header.height(); ++y )
|
|
{
|
|
if ( s.atEnd() )
|
|
{
|
|
img.reset();
|
|
return;
|
|
}
|
|
|
|
readLine( s, buf, header );
|
|
uchar *p = img.scanLine( y );
|
|
unsigned int bpl = TQMIN((header.width()+7)/8, header.BytesPerLine);
|
|
for ( unsigned int x=0; x< bpl; ++x )
|
|
p[ x ] = buf[x];
|
|
}
|
|
|
|
// Set the color palette
|
|
img.setColor( 0, tqRgb( 0, 0, 0 ) );
|
|
img.setColor( 1, tqRgb( 255, 255, 255 ) );
|
|
}
|
|
|
|
static void readImage4( TQImage &img, TQDataStream &s, const PCXHEADER &header )
|
|
{
|
|
TQByteArray buf( header.BytesPerLine*4 );
|
|
TQByteArray pixbuf( header.width() );
|
|
|
|
if(!img.create( header.width(), header.height(), 8, 16 ))
|
|
return;
|
|
|
|
for ( int y=0; y<header.height(); ++y )
|
|
{
|
|
if ( s.atEnd() )
|
|
{
|
|
img.reset();
|
|
return;
|
|
}
|
|
|
|
pixbuf.fill( 0 );
|
|
readLine( s, buf, header );
|
|
|
|
for ( int i=0; i<4; i++ )
|
|
{
|
|
TQ_UINT32 offset = i*header.BytesPerLine;
|
|
for ( unsigned int x=0; x<header.width(); ++x )
|
|
if ( buf[ offset + ( x/8 ) ] & ( 128 >> ( x%8 ) ) )
|
|
pixbuf[ x ] = static_cast<const char>(pixbuf.at(x)) + ( 1 << i );
|
|
}
|
|
|
|
uchar *p = img.scanLine( y );
|
|
for ( unsigned int x=0; x<header.width(); ++x )
|
|
p[ x ] = pixbuf[ x ];
|
|
}
|
|
|
|
// Read the palette
|
|
for ( int i=0; i<16; ++i )
|
|
img.setColor( i, header.ColorMap.color( i ) );
|
|
}
|
|
|
|
static void readImage8( TQImage &img, TQDataStream &s, const PCXHEADER &header )
|
|
{
|
|
TQByteArray buf( header.BytesPerLine );
|
|
|
|
if(!img.create( header.width(), header.height(), 8, 256 ))
|
|
return;
|
|
|
|
for ( int y=0; y<header.height(); ++y )
|
|
{
|
|
if ( s.atEnd() )
|
|
{
|
|
img.reset();
|
|
return;
|
|
}
|
|
|
|
readLine( s, buf, header );
|
|
|
|
uchar *p = img.scanLine( y );
|
|
unsigned int bpl = TQMIN(header.BytesPerLine, header.width());
|
|
for ( unsigned int x=0; x<bpl; ++x )
|
|
p[ x ] = buf[ x ];
|
|
}
|
|
|
|
TQ_UINT8 flag;
|
|
s >> flag;
|
|
kdDebug( 399 ) << "Palette Flag: " << flag << endl;
|
|
|
|
if ( flag == 12 && ( header.Version == 5 || header.Version == 2 ) )
|
|
{
|
|
// Read the palette
|
|
TQ_UINT8 r, g, b;
|
|
for ( int i=0; i<256; ++i )
|
|
{
|
|
s >> r >> g >> b;
|
|
img.setColor( i, tqRgb( r, g, b ) );
|
|
}
|
|
}
|
|
}
|
|
|
|
static void readImage24( TQImage &img, TQDataStream &s, const PCXHEADER &header )
|
|
{
|
|
TQByteArray r_buf( header.BytesPerLine );
|
|
TQByteArray g_buf( header.BytesPerLine );
|
|
TQByteArray b_buf( header.BytesPerLine );
|
|
|
|
if(!img.create( header.width(), header.height(), 32 ))
|
|
return;
|
|
|
|
for ( int y=0; y<header.height(); ++y )
|
|
{
|
|
if ( s.atEnd() )
|
|
{
|
|
img.reset();
|
|
return;
|
|
}
|
|
|
|
readLine( s, r_buf, header );
|
|
readLine( s, g_buf, header );
|
|
readLine( s, b_buf, header );
|
|
|
|
uint *p = ( uint * )img.scanLine( y );
|
|
for ( unsigned int x=0; x<header.width(); ++x )
|
|
p[ x ] = tqRgb( r_buf[ x ], g_buf[ x ], b_buf[ x ] );
|
|
}
|
|
}
|
|
|
|
KDE_EXPORT void kimgio_pcx_read( TQImageIO *io )
|
|
{
|
|
TQDataStream s( io->ioDevice() );
|
|
s.setByteOrder( TQDataStream::LittleEndian );
|
|
|
|
if ( s.device()->size() < 128 )
|
|
{
|
|
io->setStatus( -1 );
|
|
return;
|
|
}
|
|
|
|
PCXHEADER header;
|
|
|
|
s >> header;
|
|
|
|
if ( header.Manufacturer != 10 || s.atEnd())
|
|
{
|
|
io->setStatus( -1 );
|
|
return;
|
|
}
|
|
|
|
int w = header.width();
|
|
int h = header.height();
|
|
|
|
kdDebug( 399 ) << "Manufacturer: " << header.Manufacturer << endl;
|
|
kdDebug( 399 ) << "Version: " << header.Version << endl;
|
|
kdDebug( 399 ) << "Encoding: " << header.Encoding << endl;
|
|
kdDebug( 399 ) << "Bpp: " << header.Bpp << endl;
|
|
kdDebug( 399 ) << "Width: " << w << endl;
|
|
kdDebug( 399 ) << "Height: " << h << endl;
|
|
kdDebug( 399 ) << "Window: " << header.XMin << "," << header.XMax << ","
|
|
<< header.YMin << "," << header.YMax << endl;
|
|
kdDebug( 399 ) << "BytesPerLine: " << header.BytesPerLine << endl;
|
|
kdDebug( 399 ) << "NPlanes: " << header.NPlanes << endl;
|
|
|
|
TQImage img;
|
|
|
|
if ( header.Bpp == 1 && header.NPlanes == 1 )
|
|
{
|
|
readImage1( img, s, header );
|
|
}
|
|
else if ( header.Bpp == 1 && header.NPlanes == 4 )
|
|
{
|
|
readImage4( img, s, header );
|
|
}
|
|
else if ( header.Bpp == 8 && header.NPlanes == 1 )
|
|
{
|
|
readImage8( img, s, header );
|
|
}
|
|
else if ( header.Bpp == 8 && header.NPlanes == 3 )
|
|
{
|
|
readImage24( img, s, header );
|
|
}
|
|
|
|
kdDebug( 399 ) << "Image Bytes: " << img.numBytes() << endl;
|
|
kdDebug( 399 ) << "Image Bytes Per Line: " << img.bytesPerLine() << endl;
|
|
kdDebug( 399 ) << "Image Depth: " << img.depth() << endl;
|
|
|
|
if ( !img.isNull() )
|
|
{
|
|
io->setImage( img );
|
|
io->setStatus( 0 );
|
|
}
|
|
else
|
|
{
|
|
io->setStatus( -1 );
|
|
}
|
|
}
|
|
|
|
static void writeLine( TQDataStream &s, TQByteArray &buf )
|
|
{
|
|
TQ_UINT32 i = 0;
|
|
TQ_UINT32 size = buf.size();
|
|
TQ_UINT8 count, data;
|
|
char byte;
|
|
|
|
while ( i < size )
|
|
{
|
|
count = 1;
|
|
byte = buf[ i++ ];
|
|
|
|
while ( ( i < size ) && ( TQChar(byte) == buf.at(i) ) && ( count < 63 ) )
|
|
{
|
|
++i;
|
|
++count;
|
|
}
|
|
|
|
data = byte;
|
|
|
|
if ( count > 1 || data >= 0xc0 )
|
|
{
|
|
count |= 0xc0;
|
|
s << count;
|
|
}
|
|
|
|
s << data;
|
|
}
|
|
}
|
|
|
|
static void writeImage1( TQImage &img, TQDataStream &s, PCXHEADER &header )
|
|
{
|
|
img = img.convertBitOrder( TQImage::BigEndian );
|
|
|
|
header.Bpp = 1;
|
|
header.NPlanes = 1;
|
|
header.BytesPerLine = img.bytesPerLine();
|
|
|
|
s << header;
|
|
|
|
TQByteArray buf( header.BytesPerLine );
|
|
|
|
for ( int y=0; y<header.height(); ++y )
|
|
{
|
|
TQ_UINT8 *p = img.scanLine( y );
|
|
|
|
// Invert as TQImage uses reverse palette for monochrome images?
|
|
for ( int i=0; i<header.BytesPerLine; ++i )
|
|
buf[ i ] = ~p[ i ];
|
|
|
|
writeLine( s, buf );
|
|
}
|
|
}
|
|
|
|
static void writeImage4( TQImage &img, TQDataStream &s, PCXHEADER &header )
|
|
{
|
|
header.Bpp = 1;
|
|
header.NPlanes = 4;
|
|
header.BytesPerLine = header.width()/8;
|
|
|
|
for ( int i=0; i<16; ++i )
|
|
header.ColorMap.setColor( i, img.color( i ) );
|
|
|
|
s << header;
|
|
|
|
TQByteArray buf[ 4 ];
|
|
|
|
for ( int i=0; i<4; ++i )
|
|
buf[ i ].resize( header.BytesPerLine );
|
|
|
|
for ( int y=0; y<header.height(); ++y )
|
|
{
|
|
TQ_UINT8 *p = img.scanLine( y );
|
|
|
|
for ( int i=0; i<4; ++i )
|
|
buf[ i ].fill( 0 );
|
|
|
|
for ( unsigned int x=0; x<header.width(); ++x )
|
|
{
|
|
for ( int i=0; i<4; ++i )
|
|
if ( *( p+x ) & ( 1 << i ) )
|
|
buf[ i ][ x/8 ] = buf[ i ].at(x/8) | 1 << ( 7-x%8 );
|
|
}
|
|
|
|
for ( int i=0; i<4; ++i )
|
|
writeLine( s, buf[ i ] );
|
|
}
|
|
}
|
|
|
|
static void writeImage8( TQImage &img, TQDataStream &s, PCXHEADER &header )
|
|
{
|
|
header.Bpp = 8;
|
|
header.NPlanes = 1;
|
|
header.BytesPerLine = img.bytesPerLine();
|
|
|
|
s << header;
|
|
|
|
TQByteArray buf( header.BytesPerLine );
|
|
|
|
for ( int y=0; y<header.height(); ++y )
|
|
{
|
|
TQ_UINT8 *p = img.scanLine( y );
|
|
|
|
for ( int i=0; i<header.BytesPerLine; ++i )
|
|
buf[ i ] = p[ i ];
|
|
|
|
writeLine( s, buf );
|
|
}
|
|
|
|
// Write palette flag
|
|
TQ_UINT8 byte = 12;
|
|
s << byte;
|
|
|
|
// Write palette
|
|
for ( int i=0; i<256; ++i )
|
|
s << RGB( img.color( i ) );
|
|
}
|
|
|
|
static void writeImage24( TQImage &img, TQDataStream &s, PCXHEADER &header )
|
|
{
|
|
header.Bpp = 8;
|
|
header.NPlanes = 3;
|
|
header.BytesPerLine = header.width();
|
|
|
|
s << header;
|
|
|
|
TQByteArray r_buf( header.width() );
|
|
TQByteArray g_buf( header.width() );
|
|
TQByteArray b_buf( header.width() );
|
|
|
|
for ( int y=0; y<header.height(); ++y )
|
|
{
|
|
uint *p = ( uint * )img.scanLine( y );
|
|
|
|
for ( unsigned int x=0; x<header.width(); ++x )
|
|
{
|
|
QRgb rgb = *p++;
|
|
r_buf[ x ] = tqRed( rgb );
|
|
g_buf[ x ] = tqGreen( rgb );
|
|
b_buf[ x ] = tqBlue( rgb );
|
|
}
|
|
|
|
writeLine( s, r_buf );
|
|
writeLine( s, g_buf );
|
|
writeLine( s, b_buf );
|
|
}
|
|
}
|
|
|
|
KDE_EXPORT void kimgio_pcx_write( TQImageIO *io )
|
|
{
|
|
TQDataStream s( io->ioDevice() );
|
|
s.setByteOrder( TQDataStream::LittleEndian );
|
|
|
|
TQImage img = io->image();
|
|
|
|
int w = img.width();
|
|
int h = img.height();
|
|
|
|
kdDebug( 399 ) << "Width: " << w << endl;
|
|
kdDebug( 399 ) << "Height: " << h << endl;
|
|
kdDebug( 399 ) << "Depth: " << img.depth() << endl;
|
|
kdDebug( 399 ) << "BytesPerLine: " << img.bytesPerLine() << endl;
|
|
kdDebug( 399 ) << "Num Colors: " << img.numColors() << endl;
|
|
|
|
PCXHEADER header;
|
|
|
|
header.Manufacturer = 10;
|
|
header.Version = 5;
|
|
header.Encoding = 1;
|
|
header.XMin = 0;
|
|
header.YMin = 0;
|
|
header.XMax = w-1;
|
|
header.YMax = h-1;
|
|
header.HDpi = 300;
|
|
header.YDpi = 300;
|
|
header.Reserved = 0;
|
|
header.PaletteInfo =1;
|
|
|
|
if ( img.depth() == 1 )
|
|
{
|
|
writeImage1( img, s, header );
|
|
}
|
|
else if ( img.depth() == 8 && img.numColors() <= 16 )
|
|
{
|
|
writeImage4( img, s, header );
|
|
}
|
|
else if ( img.depth() == 8 )
|
|
{
|
|
writeImage8( img, s, header );
|
|
}
|
|
else if ( img.depth() == 32 )
|
|
{
|
|
writeImage24( img, s, header );
|
|
}
|
|
|
|
io->setStatus( 0 );
|
|
}
|
|
|
|
/* vim: et sw=2 ts=2
|
|
*/
|
|
|