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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 LASTEXPRESS_BACKGROUND_H
#define LASTEXPRESS_BACKGROUND_H
/*
Background file format (.BG)
header:
uint32 {4} - position X on screen
uint32 {4} - position Y on screen
uint32 {4} - image width
uint32 {4} - image height
uint32 {4} - red colour channel data size
uint32 {4} - blue colour channel data size
uint32 {4} - green colour channel data size
data:
byte {x} - red colour channel data
byte {x} - blue colour channel data
byte {x} - green colour channel data
*/
#include "lastexpress/drawable.h"
#include "common/stream.h"
namespace LastExpress {
class Background : public Drawable {
public:
Background();
~Background();
bool load(Common::SeekableReadStream *stream);
Common::Rect draw(Graphics::Surface *surface);
private:
struct BackgroundHeader {
uint32 posX; ///< position X on screen
uint32 posY; ///< position Y on screen
uint32 width; ///< image width
uint32 height; ///< image height
uint32 redSize; ///< red color channel data size
uint32 blueSize; ///< blue color channel data size
uint32 greenSize; ///< green color channel data size
};
BackgroundHeader _header;
uint16 *_data; ///< decoded background data
byte *decodeComponent(Common::SeekableReadStream *in, uint32 inSize, uint32 outSize) const;
};
} // End of namespace LastExpress
#endif // LASTEXPRESS_BACKGROUND_H
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