ResidualVM logo ResidualVM website - Forums - Contact us BuildBot - Doxygen - Wiki curved edge

codec48.h

Go to the documentation of this file.
00001 /* ResidualVM - A 3D game interpreter
00002  *
00003  * ResidualVM is the legal property of its developers, whose names
00004  * are too numerous to list here. Please refer to the COPYRIGHT
00005  * file distributed with this source distribution.
00006  *
00007  * This program is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU General Public License
00009  * as published by the Free Software Foundation; either version 2
00010  * of the License, or (at your option) any later version.
00011  *
00012  * This program is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU General Public License
00018  * along with this program; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
00020  *
00021  */
00022 
00023 #ifndef CODEC48_H
00024 #define CODEC48_H
00025 
00026 #include "common/scummsys.h"
00027 
00028 namespace Grim {
00029 
00030 class Codec48Decoder {
00031 public:
00032     Codec48Decoder();
00033     ~Codec48Decoder();
00034     void init(int width, int height);
00035     void deinit();
00036     bool decode(byte *dst, const byte *src);
00037 
00038 private:
00039     void makeTable(int pitch, int index);
00040 
00041     void bompDecodeLine(byte *dst, const byte *src, int len);
00042 
00043     void decode3(byte *dst, const byte *src, int bufOffset);
00044     void scaleBlock(byte *dst, const byte *src);
00045     void copyBlock(byte *dst, int deltaBufOffset, int offset);
00046 
00047     int _curBuf;
00048     byte *_deltaBuf[2];
00049     int _blockX, _blockY;
00050     int _pitch;
00051     int16 *_offsetTable;
00052     int _tableLastPitch, _tableLastIndex;
00053     int16 _prevSeqNb;
00054     int32 _frameSize;
00055     int _width, _height;
00056     byte *_interTable;
00057 };
00058 
00059 } // end of namespace Grim
00060 
00061 #endif


Generated on Sat Jun 15 2019 05:01:14 for ResidualVM by doxygen 1.7.1
curved edge   curved edge