diff options
Diffstat (limited to 'image/codecs/indeo3.h')
-rw-r--r-- | image/codecs/indeo3.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/image/codecs/indeo3.h b/image/codecs/indeo3.h new file mode 100644 index 0000000000..0ff0265250 --- /dev/null +++ b/image/codecs/indeo3.h @@ -0,0 +1,95 @@ +/* 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. + * + */ + +#include "common/scummsys.h" + +/* 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 IMAGE_CODECS_INDEO3_H +#define IMAGE_CODECS_INDEO3_H + +#include "image/codecs/codec.h" + +namespace Image { + +/** + * Intel Indeo 3 decoder. + * + * Used by BMP/AVI. + * + * Used in video: + * - VMDDecoder + */ +class Indeo3Decoder : public Codec { +public: + Indeo3Decoder(uint16 width, uint16 height); + ~Indeo3Decoder(); + + const Graphics::Surface *decodeFrame(Common::SeekableReadStream &stream); + Graphics::PixelFormat getPixelFormat() const; + + static bool isIndeo3(Common::SeekableReadStream &stream); + +private: + Graphics::Surface *_surface; + + Graphics::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 Image + +#endif |