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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.
*
*/
#ifndef ZVISION_RLF_ANIMATION_H
#define ZVISION_RLF_ANIMATION_H
#include "common/types.h"
#include "common/file.h"
namespace Common {
class String;
}
namespace ZVision {
class RlfAnimation {
public:
RlfAnimation(const Common::String &fileName, bool stream = true);
~RlfAnimation();
private:
enum EncodingType {
Masked,
Simple
};
struct Frame {
EncodingType type;
int8 *encodedData;
uint32 encodedSize;
};
private:
Common::File _file;
bool _stream;
uint _lastFrameRead;
uint _frameCount;
uint _width;
uint _height;
uint32 _frameTime; // In milliseconds
Frame *_frames;
Common::List<uint> _completeFrames;
int _currentFrame;
uint16 *_currentFrameBuffer;
uint32 _frameBufferByteSize;
public:
uint frameCount() { return _frameCount; }
uint width() { return _width; }
uint height() { return _height; }
uint32 frameTime() { return _frameTime; }
const uint16 *getFrameData(uint frameNumber);
const uint16 *getNextFrame();
bool endOfAnimation() { return _currentFrame == (int)_frameCount - 1; }
private:
bool readHeader();
Frame readNextFrame();
void applyFrameToCurrent(uint frameNumber);
void applyFrameToCurrent(const RlfAnimation::Frame &frame);
void decodeMaskedRunLengthEncoding(int8 *source, int8 *dest, uint32 sourceSize, uint32 destSize) const;
void decodeSimpleRunLengthEncoding(int8 *source, int8 *dest, uint32 sourceSize, uint32 destSize) const;
};
} // End of namespace ZVision
#endif
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