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/* 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.
*
* $URL$
* $Id$
*
*/
#ifndef SCUMM_PLAYER_PCE_H
#define SCUMM_PLAYER_PCE_H
#include "common/scummsys.h"
#include "scumm/music.h"
#include "sound/audiostream.h"
#include "sound/mixer.h"
// PCE sound engine is only used by Loom, which requires 16bit color support
#ifdef USE_RGB_COLOR
namespace Scumm {
class ScummEngine;
class PSG_HuC6280;
class Player_PCE : public Audio::AudioStream, public MusicEngine {
private:
struct channel_t {
int id;
byte controlVec0;
byte controlVec1;
byte controlVec2;
byte controlVec5;
byte balance;
byte balance2;
byte controlVec8;
byte controlVec9;
byte controlVec10;
byte controlVec11;
int16 soundUpdateCounter;
byte controlVec18;
byte controlVec19;
byte waveformCtrl;
byte controlVec21;
bool controlVec23;
bool controlVec24;
uint16 controlVecShort02;
uint16 controlVecShort03;
int16 controlVecShort06;
uint16 freq;
uint16 controlVecShort09;
uint16 controlVecShort10;
const byte* soundDataPtr;
const byte* controlBufferPos;
};
public:
Player_PCE(ScummEngine *scumm, Audio::Mixer *mixer);
virtual ~Player_PCE();
virtual void setMusicVolume(int vol) { _maxvol = vol; }
void startMusic(int songResIndex);
virtual void startSound(int sound);
virtual void stopSound(int sound);
virtual void stopAllSounds();
virtual int getSoundStatus(int sound) const;
virtual int getMusicTimer();
// AudioStream API
int readBuffer(int16 *buffer, const int numSamples);
bool isStereo() const { return true; }
bool endOfData() const { return false; }
int getRate() const { return _sampleRate; }
private:
ScummEngine *_vm;
Audio::Mixer *_mixer;
Audio::SoundHandle _soundHandle;
int _sampleRate;
int _maxvol;
private:
PSG_HuC6280 *_psg;
channel_t channels[12];
Common::Mutex _mutex;
// number of samples per timer period
int _samplesPerPeriod;
int16* _sampleBuffer;
int _sampleBufferCnt;
void init();
bool isPlaying();
void PSG_Write(int reg, byte data);
void setupWaveform(byte bank);
void procA541(channel_t *channel);
void updateSound();
void procA731(channel_t *channel);
void processSoundData(channel_t *channel);
void procA9F3(int x);
void procAA62(channel_t *channel, int a);
uint16 procAAF6(int x);
void procAB7F(channel_t *channel);
void procAC24(channel_t *channel);
void procACEA(channel_t *channel, int a);
void procAD21(int a, int x);
void procAD29(int value);
void procAD3D(int a, int x);
};
} // End of namespace Scumm
#endif // USE_RGB_COLOR
#endif
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