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https://github.com/libretro/scummvm.git
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82 lines
2.4 KiB
C++
82 lines
2.4 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#ifndef LASTEXPRESS_BACKGROUND_H
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#define LASTEXPRESS_BACKGROUND_H
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/*
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Background file format (.BG)
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header:
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uint32 {4} - position X on screen
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uint32 {4} - position Y on screen
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uint32 {4} - image width
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uint32 {4} - image height
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uint32 {4} - red colour channel data size
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uint32 {4} - blue colour channel data size
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uint32 {4} - green colour channel data size
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data:
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byte {x} - red colour channel data
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byte {x} - blue colour channel data
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byte {x} - green colour channel data
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*/
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#include "lastexpress/drawable.h"
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#include "common/stream.h"
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namespace LastExpress {
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class Background : public Drawable {
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public:
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Background();
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~Background();
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bool load(Common::SeekableReadStream *stream);
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Common::Rect draw(Graphics::Surface *surface);
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private:
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struct BackgroundHeader {
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uint32 posX; ///< position X on screen
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uint32 posY; ///< position Y on screen
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uint32 width; ///< image width
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uint32 height; ///< image height
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uint32 redSize; ///< red color channel data size
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uint32 blueSize; ///< blue color channel data size
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uint32 greenSize; ///< green color channel data size
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};
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BackgroundHeader _header;
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uint16 *_data; ///< decoded background data
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byte *decodeComponent(Common::SeekableReadStream *in, uint32 inSize, uint32 outSize) const;
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};
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} // End of namespace LastExpress
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#endif // LASTEXPRESS_BACKGROUND_H
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