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101 lines
2.5 KiB
C++
101 lines
2.5 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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*/
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#ifndef ZVISION_RLF_ANIMATION_H
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#define ZVISION_RLF_ANIMATION_H
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#include "common/types.h"
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#include "common/file.h"
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#include "graphics/surface.h"
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namespace Common {
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class String;
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}
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namespace ZVision {
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class RlfAnimation {
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public:
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RlfAnimation(const Common::String &fileName, bool stream = true);
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~RlfAnimation();
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private:
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enum EncodingType {
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Masked,
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Simple
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};
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struct Frame {
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EncodingType type;
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int8 *encodedData;
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uint32 encodedSize;
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};
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const static Graphics::PixelFormat _pixelFormat555;
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const static Graphics::PixelFormat _pixelFormat565;
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private:
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Common::File _file;
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bool _stream;
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uint _lastFrameRead;
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uint _frameCount;
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uint _width;
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uint _height;
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uint32 _frameTime; // In milliseconds
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Frame *_frames;
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Common::List<uint> _completeFrames;
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int _currentFrame;
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uint16 *_currentFrameBuffer;
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uint32 _frameBufferByteSize;
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public:
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uint frameCount() { return _frameCount; }
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uint width() { return _width; }
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uint height() { return _height; }
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uint32 frameTime() { return _frameTime; }
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void seekToFrame(int frameNumber);
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const uint16 *getFrameData(uint frameNumber);
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const uint16 *getNextFrame();
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bool endOfAnimation() { return _currentFrame == (int)_frameCount - 1; }
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private:
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bool readHeader();
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Frame readNextFrame();
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void applyFrameToCurrent(uint frameNumber);
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void applyFrameToCurrent(const RlfAnimation::Frame &frame);
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void decodeMaskedRunLengthEncoding(int8 *source, int8 *dest, uint32 sourceSize, uint32 destSize) const;
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void decodeSimpleRunLengthEncoding(int8 *source, int8 *dest, uint32 sourceSize, uint32 destSize) const;
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};
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} // End of namespace ZVision
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#endif
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