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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.
*
*/
#ifndef TOWNS_EUP_H
#define TOWNS_EUP_H
#include "audio/softsynth/fmtowns_pc98/towns_audio.h"
class TownsEuphonyDriver : public TownsAudioInterfacePluginDriver {
public:
TownsEuphonyDriver(Audio::Mixer *mixer);
virtual ~TownsEuphonyDriver();
bool init();
void reset();
void loadInstrument(int chanType, int id, const uint8 *data);
void loadWaveTable(const uint8 *data);
void unloadWaveTable(int id);
void reserveSoundEffectChannels(int num);
int setMusicTempo(int tempo);
int startMusicTrack(const uint8 *data, int trackSize, int startTick);
void setMusicLoop(bool loop);
void stopParser();
bool parserIsPlaying() {return _playing; }
void continueParsing();
void playSoundEffect(int chan, int note, int velo, const uint8 *data);
void stopSoundEffect(int chan);
bool soundEffectIsPlaying(int chan);
void chanPanPos(int chan, int mode);
void chanPitch(int chan, int pitch);
void chanVolume(int chan, int vol);
void setOutputVolume(int chanType, int volLeft, int volRight);
int configChan_enable(int tableEntry, int val);
int configChan_setMode(int tableEntry, int val);
int configChan_remap(int tableEntry, int val);
int configChan_adjustVolume(int tableEntry, int val);
int configChan_setTranspose(int tableEntry, int val);
int assignChannel(int chan, int tableEntry);
void timerCallback(int timerId);
void setMusicVolume(int volume);
void setSoundEffectVolume(int volume);
TownsAudioInterface *intf() {
return _intf;
}
private:
void resetTables();
void resetTempo();
void setTempoIntern(int tempo);
void setTimerA(bool enable, int tempo);
void setTimerB(bool enable, int tempo);
void updatePulseCount();
void updateTimeStampBase();
void updateParser();
void updateCheckEot();
bool parseNext();
void jumpNextLoop();
void updateEventBuffer();
void flushEventBuffer();
void processBufferNote(int mode, int evt, int note, int velo);
void resetControl();
void resetControlIntern(int mode, int chan);
uint8 appendEvent(uint8 evt, uint8 chan);
void sendEvent(uint8 mode, uint8 command);
typedef bool(TownsEuphonyDriver::*EuphonyOpcode)();
bool evtSetupNote();
bool evtPolyphonicAftertouch();
bool evtControlPitch();
bool evtInstrumentChanAftertouch();
bool evtLoadInstrument();
bool evtAdvanceTimestampOffset();
bool evtTempo();
bool evtModeOrdrChange();
bool evtNotImpl() {
return false;
}
uint8 applyTranspose(uint8 in);
uint8 applyVolumeAdjust(uint8 in);
void sendNoteOff();
void sendNoteOn();
void sendChanVolume();
void sendPanPosition();
void sendAllNotesOff();
void sendSetInstrument();
void sendPitch();
int8 *_activeChannels;
int8 *_sustainChannels;
struct ActiveChannel {
int8 chan;
int8 next;
uint8 note;
uint8 sub;
} *_assignedChannels;
uint8 *_tEnable;
uint8 *_tMode;
uint8 *_tOrdr;
int8 *_tLevel;
int8 *_tTranspose;
struct DlEvent {
uint8 evt;
uint8 mode;
uint8 note;
uint8 velo;
uint16 len;
} *_eventBuffer;
int _bufferedEventsCount;
uint8 _para[2];
uint8 _paraCount;
uint8 _command;
uint8 _defaultBaseTickLen;
uint8 _baseTickLen;
uint32 _pulseCount;
int _tempoControlMode;
int _extraTimingControlRemainder;
int _extraTimingControl;
int _timerSetting;
int8 _tempoDiff;
int _tempoModifier;
uint32 _timeStampDest;
uint32 _timeStampBase;
int8 _elapsedEvents;
uint8 _deltaTicks;
uint32 _tickCounter;
uint8 _defaultTempo;
int _trackTempo;
bool _loop;
bool _playing;
bool _endOfTrack;
bool _suspendParsing;
const uint8 *_musicStart;
const uint8 *_musicPos;
uint32 _musicTrackSize;
TownsAudioInterface *_intf;
};
#endif
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