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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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.
*
* $URL$
* $Id$
*/
#ifndef GRAPHICS_IMAGEDEC_H
#define GRAPHICS_IMAGEDEC_H
#include "common/scummsys.h"
#include "common/str.h"
namespace Common{
class SeekableReadStream;
}
namespace Graphics {
struct PixelFormat;
struct Surface;
class ImageDecoder {
public:
ImageDecoder() {}
virtual ~ImageDecoder() {}
static Surface *loadFile(const Common::String &name, const PixelFormat &format);
static Surface *loadFile(Common::SeekableReadStream &stream, const PixelFormat &format);
/**
* checks if the data can be decoded by this decoder
*
* @param stream memory read stream
* @return true if it can be decoded, otherwise false
*/
virtual bool decodeable(Common::SeekableReadStream &stream) = 0;
/**
* decodes the data and returns an pointer to the resulting surface.
* Surface::free() must be called by the user also it must be deleted
* with delete;
*
* @param stream the memory stream which should be decoded
* @param format the pixel format used to generate the surface
* @return returns a new surface if the image could be decoded, otherwise 0
*/
virtual Surface *decodeImage(Common::SeekableReadStream &stream, const PixelFormat &format) = 0;
};
} // End of namespace Graphics
#endif
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