1 /* ScummVM - Graphic Adventure Engine 2 * 3 * ScummVM is the legal property of its developers, whose names 4 * are too numerous to list here. Please refer to the COPYRIGHT 5 * file distributed with this source distribution. 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License 9 * as published by the Free Software Foundation; either version 2 10 * of the License, or (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 20 * 21 */ 22 23 #ifndef BLADERUNNER_ADPCM_DECODER_H 24 #define BLADERUNNER_ADPCM_DECODER_H 25 26 #include "common/types.h" 27 28 namespace BladeRunner { 29 30 class ADPCMWestwoodDecoder { 31 int16 _stepIndex; 32 int32 _predictor; 33 34 public: ADPCMWestwoodDecoder()35 ADPCMWestwoodDecoder() 36 : _stepIndex(0), _predictor(0) { 37 } 38 setParameters(int16 stepIndex,int32 predictor)39 void setParameters(int16 stepIndex, int32 predictor) { 40 _stepIndex = stepIndex; 41 _predictor = predictor; 42 } 43 44 void decode(uint8 *in, size_t size, int16 *out, bool forceLittleEndianOut); 45 }; 46 47 } // End of namespace BladeRunner 48 49 #endif 50