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// Copyright (C) 2002-2012 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h
#include "CImageWriterPCX.h"
#ifdef _IRR_COMPILE_WITH_PCX_WRITER_
#include "CImageLoaderPCX.h"
#include "IWriteFile.h"
#include "os.h" // for logging
#include "irrString.h"
namespace irr
{
namespace video
{
IImageWriter* createImageWriterPCX()
{
return new CImageWriterPCX;
}
CImageWriterPCX::CImageWriterPCX()
{
#ifdef _DEBUG
setDebugName("CImageWriterPCX");
#endif
}
bool CImageWriterPCX::isAWriteableFileExtension(const io::path& filename) const
{
return core::hasFileExtension ( filename, "pcx" );
}
bool CImageWriterPCX::writeImage(io::IWriteFile *file, IImage *image,u32 param) const
{
if (!file || !image)
return false;
u8 d1;
u16 d2;
u32 i;
d1 = 10; // Manufacturer
file->write(&d1, 1);
d1 = 5; // Version
file->write(&d1, 1);
d1 = 1; // Encoding
file->write(&d1, 1);
d1 = 8; // Bits per Pixel
file->write(&d1, 1);
d2 = 0; // pixel origin
file->write(&d2, 2);
file->write(&d2, 2);
d2 = image->getDimension().Width-1; // width
#ifdef __BIG_ENDIAN__
d2 = os::Byteswap::byteswap(d2);
#endif
file->write(&d2, 2);
d2 = image->getDimension().Height-1; // height
#ifdef __BIG_ENDIAN__
d2 = os::Byteswap::byteswap(d2);
#endif
file->write(&d2, 2);
d2 = 300; // dpi
#ifdef __BIG_ENDIAN__
d2 = os::Byteswap::byteswap(d2);
#endif
file->write(&d2, 2);
file->write(&d2, 2);
d2 = 0; // palette (not used)
for (i=0; i<24; ++i)
{
file->write(&d2, 2);
}
d1 = 0; // reserved
file->write(&d1, 1);
d1 = 3; // planes
file->write(&d1, 1);
d2 = image->getDimension().Width; // pitch
if (d2&0x0001) // must be even
++d2;
#ifdef __BIG_ENDIAN__
d2 = os::Byteswap::byteswap(d2);
#endif
file->write(&d2, 2);
d2 = 1; // color mode
#ifdef __BIG_ENDIAN__
d2 = os::Byteswap::byteswap(d2);
#endif
file->write(&d2, 2);
d2 = 800; // screen width
#ifdef __BIG_ENDIAN__
d2 = os::Byteswap::byteswap(d2);
#endif
file->write(&d2, 2);
d2 = 600; // screen height
#ifdef __BIG_ENDIAN__
d2 = os::Byteswap::byteswap(d2);
#endif
file->write(&d2, 2);
d2 = 0; // filler (not used)
for (i=0; i<27; ++i)
{
file->write(&d2, 2);
}
u8 cnt, value;
for (i=0; i<image->getDimension().Height; ++i)
{
cnt = 0;
value = 0;
for (u32 j=0; j<3; ++j) // color planes
{
for (u32 k=0; k<image->getDimension().Width; ++k)
{
const SColor pix = image->getPixel(k,i);
if ((cnt!=0) && (cnt<63) &&
(((j==0) && (value==pix.getRed())) ||
((j==1) && (value==pix.getGreen())) ||
((j==2) && (value==pix.getBlue()))))
{
++cnt;
}
else
{
if (cnt!=0)
{
if ((cnt>1) || ((value&0xc0)==0xc0))
{
cnt |= 0xc0;
file->write(&cnt, 1);
}
file->write(&value, 1);
}
cnt=1;
if (j==0)
value=(u8)pix.getRed();
else if (j==1)
value=(u8)pix.getGreen();
else if (j==2)
value=(u8)pix.getBlue();
}
}
}
if ((cnt>1) || ((value&0xc0)==0xc0))
{
cnt |= 0xc0;
file->write(&cnt, 1);
}
file->write(&value, 1);
}
return true;
}
} // namespace video
} // namespace irr
#endif
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