mirror of
https://github.com/libretro/scummvm.git
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135 lines
3.4 KiB
C++
135 lines
3.4 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef SCUMM_PLAYER_PCE_H
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#define SCUMM_PLAYER_PCE_H
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#include "common/scummsys.h"
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#include "common/mutex.h"
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#include "scumm/music.h"
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#include "audio/audiostream.h"
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#include "audio/mixer.h"
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// PCE sound engine is only used by Loom, which requires 16bit color support
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#ifdef USE_RGB_COLOR
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namespace Scumm {
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class ScummEngine;
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class PSG_HuC6280;
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class Player_PCE : public Audio::AudioStream, public MusicEngine {
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private:
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struct channel_t {
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int id;
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byte controlVec0;
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byte controlVec1;
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byte controlVec2;
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byte controlVec5;
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byte balance;
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byte balance2;
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byte controlVec8;
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byte controlVec9;
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byte controlVec10;
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byte controlVec11;
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int16 soundUpdateCounter;
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byte controlVec18;
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byte controlVec19;
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byte waveformCtrl;
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byte controlVec21;
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bool controlVec23;
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bool controlVec24;
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uint16 controlVecShort02;
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uint16 controlVecShort03;
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int16 controlVecShort06;
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uint16 freq;
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uint16 controlVecShort09;
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uint16 controlVecShort10;
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const byte* soundDataPtr;
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const byte* controlBufferPos;
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};
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public:
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Player_PCE(ScummEngine *scumm, Audio::Mixer *mixer);
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virtual ~Player_PCE();
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virtual void setMusicVolume(int vol) { _maxvol = vol; }
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void startMusic(int songResIndex);
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virtual void startSound(int sound);
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virtual void stopSound(int sound);
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virtual void stopAllSounds();
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virtual int getSoundStatus(int sound) const;
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virtual int getMusicTimer();
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// AudioStream API
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int readBuffer(int16 *buffer, const int numSamples);
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bool isStereo() const { return true; }
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bool endOfData() const { return false; }
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int getRate() const { return _sampleRate; }
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private:
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ScummEngine *_vm;
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Audio::Mixer *_mixer;
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Audio::SoundHandle _soundHandle;
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int _sampleRate;
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int _maxvol;
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private:
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PSG_HuC6280 *_psg;
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channel_t channels[12];
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Common::Mutex _mutex;
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// number of samples per timer period
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int _samplesPerPeriod;
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int16* _sampleBuffer;
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int _sampleBufferCnt;
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void init();
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bool isPlaying();
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void PSG_Write(int reg, byte data);
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void setupWaveform(byte bank);
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void procA541(channel_t *channel);
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void updateSound();
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void procA731(channel_t *channel);
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void processSoundData(channel_t *channel);
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void procA9F3(int x);
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void procAA62(channel_t *channel, int a);
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uint16 procAAF6(int x);
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void procAB7F(channel_t *channel);
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void procAC24(channel_t *channel);
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void procACEA(channel_t *channel, int a);
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void procAD21(int a, int x);
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void procAD29(int value);
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void procAD3D(int a, int x);
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};
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} // End of namespace Scumm
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#endif // USE_RGB_COLOR
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#endif
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