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Diffstat (limited to 'graphics/video/dxa_decoder.h')
-rw-r--r-- | graphics/video/dxa_decoder.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/graphics/video/dxa_decoder.h b/graphics/video/dxa_decoder.h new file mode 100644 index 0000000000..384a057c3f --- /dev/null +++ b/graphics/video/dxa_decoder.h @@ -0,0 +1,89 @@ +/* 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. + * + * $URL$ + * $Id$ + * + */ + +/** + * Video decoder used in engines: + * - agos + * - sword1 + * - sword2 + */ + +#ifndef GRAPHICS_VIDEO_DXA_PLAYER_H +#define GRAPHICS_VIDEO_DXA_PLAYER_H + +#include "graphics/video/video_player.h" + +namespace Graphics { + +class DXADecoder : public VideoDecoder { +public: + DXADecoder(); + virtual ~DXADecoder(); + + /** + * Load a DXA encoded video file + * @param filename the filename to load + */ + bool loadFile(const char *fileName); + + /** + * Close a DXA encoded video file + */ + void closeFile(); + + bool decodeNextFrame(); + + /** + * Get the sound chunk tag of the loaded DXA file + */ + uint32 getSoundTag() { return _soundTag; } + +private: + void decodeZlib(byte *data, int size, int totalSize); + void decode12(int size); + void decode13(int size); + + enum ScaleMode { + S_NONE, + S_INTERLACED, + S_DOUBLE + }; + + byte *_frameBuffer1; + byte *_frameBuffer2; + byte *_scaledBuffer; + byte *_inBuffer; + uint32 _inBufferSize; + byte *_decompBuffer; + uint32 _decompBufferSize; + uint16 _curHeight; + uint32 _frameSize; + ScaleMode _scaleMode; + uint32 _soundTag; +}; + +} // End of namespace Graphics + +#endif |