vmap/plugins/image/dds.cpp

/*
   Copyright (C) 2001-2006, William Joseph.
   All Rights Reserved.

   This file is part of GtkRadiant.

   GtkRadiant 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.

   GtkRadiant 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 GtkRadiant; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#include "dds.h"

#include <stdlib.h>

#include "ifilesystem.h"
#include "iarchive.h"
#include "idatastream.h"

#include "ddslib.h"
#include "imagelib.h"

Image *LoadDDSBuff(const byte *buffer)
{
	int width, height;
	ddsPF_t pixelFormat;
	if (DDSGetInfo(reinterpret_cast<ddsBuffer_t *>( const_cast<byte *>( buffer )), &width, &height, &pixelFormat) ==
	    -1) {
		return 0;
	}

	RGBAImage *image = new RGBAImage(width, height);

	if (DDSDecompress(reinterpret_cast<ddsBuffer_t *>( const_cast<byte *>( buffer )), image->getRGBAPixels()) == -1) {
		image->release();
		return 0;
	}
	return image;
}

Image *LoadDDS(ArchiveFile &file)
{
	ScopedArchiveBuffer buffer(file);
	return LoadDDSBuff(buffer.buffer);
}