diff options
author | Matthew Hoops | 2014-02-27 21:27:23 -0500 |
---|---|---|
committer | Matthew Hoops | 2014-02-28 00:27:36 -0500 |
commit | b568ac73b9d2e063eb04693e4610a9932035b696 (patch) | |
tree | 2791fe12d65ca2a832251248494991ff0598a068 /image/codecs/truemotion1.h | |
parent | 740b6e8fbdece44ae2a5295cb0549a53b6dc6ae7 (diff) | |
download | scummvm-rg350-b568ac73b9d2e063eb04693e4610a9932035b696.tar.gz scummvm-rg350-b568ac73b9d2e063eb04693e4610a9932035b696.tar.bz2 scummvm-rg350-b568ac73b9d2e063eb04693e4610a9932035b696.zip |
IMAGE: Move video codecs to image/
Diffstat (limited to 'image/codecs/truemotion1.h')
-rw-r--r-- | image/codecs/truemotion1.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/image/codecs/truemotion1.h b/image/codecs/truemotion1.h new file mode 100644 index 0000000000..e836ddb0e4 --- /dev/null +++ b/image/codecs/truemotion1.h @@ -0,0 +1,109 @@ +/* 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. + * + */ + +// Based on the TrueMotion 1 decoder by Alex Beregszaszi & Mike Melanson in FFmpeg + +// Only compile if SCI32 is enabled, ZVISION is enabled, or if we're building dynamic modules +#if defined(ENABLE_SCI32) || defined(ENABLE_ZVISION) || defined(DYNAMIC_MODULES) + +#ifndef IMAGE_CODECS_TRUEMOTION1_H +#define IMAGE_CODECS_TRUEMOTION1_H + +#include "image/codecs/codec.h" + +namespace Image { + +/** + * Duck TrueMotion 1 decoder. + * + * Used in video: + * - AVIDecoder + */ +class TrueMotion1Decoder : public Codec { +public: + TrueMotion1Decoder(uint16 width, uint16 height); + ~TrueMotion1Decoder(); + + const Graphics::Surface *decodeImage(Common::SeekableReadStream *stream); + + // Always return RGB565 + Graphics::PixelFormat getPixelFormat() const { return Graphics::PixelFormat(2, 5, 6, 5, 0, 11, 5, 0, 0); } + +private: + Graphics::Surface *_surface; + + int _mbChangeBitsRowSize; + byte *_buf, *_mbChangeBits, *_indexStream; + int _indexStreamSize; + + uint16 _width, _height; + int _flags; + + struct PredictorTableEntry { + uint32 color; + bool getNextIndex; + }; + + PredictorTableEntry _yPredictorTable[1024]; + PredictorTableEntry _cPredictorTable[1024]; + + int _blockType; + int _blockWidth; + int _blockHeight; + + int16 _ydt[8]; + int16 _cdt[8]; + + int _lastDeltaset, _lastVectable; + + uint32 *_vertPred; + + struct { + byte headerSize; + byte compression; + byte deltaset; + byte vectable; + uint16 ysize; + uint16 xsize; + uint16 checksum; + byte version; + byte headerType; + byte flags; + byte control; + uint16 xoffset; + uint16 yoffset; + uint16 width; + uint16 height; + } _header; + + void selectDeltaTables(int deltaTableIndex); + void decodeHeader(Common::SeekableReadStream *stream); + void decode16(); + int makeYdt16Entry(int p1, int p2); + int makeCdt16Entry(int p1, int p2); + void genVectorTable16(const byte *selVectorTable); +}; + +} // End of namespace Image + +#endif // IMAGE_CODECS_TRUEMOTION1_H +#endif // SCI32/Plugins guard |