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Diffstat (limited to 'video/codecs/indeo3.h')
-rw-r--r-- | video/codecs/indeo3.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/video/codecs/indeo3.h b/video/codecs/indeo3.h new file mode 100644 index 0000000000..d074facea2 --- /dev/null +++ b/video/codecs/indeo3.h @@ -0,0 +1,94 @@ +/* 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. + * + * $URL$ + * $Id$ + * + */ + +#include "common/scummsys.h" + +#ifdef USE_INDEO3 + +/* Intel Indeo 3 decompressor, derived from ffmpeg. + * + * Original copyright note: + * Intel Indeo 3 (IV31, IV32, etc.) video decoder for ffmpeg + * written, produced, and directed by Alan Smithee + */ + +#ifndef GRAPHICS_INDEO3_H +#define GRAPHICS_INDEO3_H + +#include "graphics/video/codecs/codec.h" + +namespace Graphics { + +class Indeo3Decoder : public Codec { +public: + Indeo3Decoder(uint16 width, uint16 height); + ~Indeo3Decoder(); + + const Surface *decodeImage(Common::SeekableReadStream *stream); + PixelFormat getPixelFormat() const; + + static bool isIndeo3(Common::SeekableReadStream &stream); + +private: + Surface *_surface; + + PixelFormat _pixelFormat; + + static const int _corrector_type_0[24]; + static const int _corrector_type_2[8]; + static const uint32 correction[]; + static const uint32 correctionloworder[]; + static const uint32 correctionhighorder[]; + + struct YUVBufs { + byte *Ybuf; + byte *Ubuf; + byte *Vbuf; + byte *the_buf; + uint32 the_buf_size; + uint16 y_w, y_h; + uint16 uv_w, uv_h; + }; + + YUVBufs _iv_frame[2]; + YUVBufs *_cur_frame; + YUVBufs *_ref_frame; + + byte *_ModPred; + uint16 *_corrector_type; + + void buildModPred(); + void allocFrames(); + + void decodeChunk(byte *cur, byte *ref, int width, int height, + const byte *buf1, uint32 fflags2, const byte *hdr, + const byte *buf2, int min_width_160); +}; + +} // End of namespace Graphics + +#endif // GRAPHICS_INDEO3_H + +#endif // USE_INDEO3 |