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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 SCI_MIDIPARSER_H
#define SCI_MIDIPARSER_H
#include "sci/resource.h"
#include "sci/sound/music.h"
#include "audio/midiparser.h"
/*
Sound drivers info: (from driver cmd0)
AdLib/SB : track 0 , voices 9 , patch 3 ah=1
ProAudioSp: track 0 , voices 9 , patch 3 ah=17
GenerlMIDI: track 7 , voices 32, patch 4 ah=1 SCI1.1
Game Blast: track 9 , voices 12, patch 101 ah=1
MT-32 : track 12, voices 32, patch 1 ah=1
PC Speaker: track 18, voices 1 , patch 0xFF ah=1
Tandy : track 19, voices 3 , patch 101 ah=1
IBM PS/1 : track 19, voices 3 , patch 101 ah=1
*/
namespace Sci {
/**
* An extended standard MIDI (SMF) parser. Sierra used an extra channel
* with special commands for extended functionality and animation syncing.
* Refer to MidiParser_SMF() in /sound/midiparser_smf.cpp for the standard
* MIDI (SMF) parser functionality that the SCI MIDI parser is based on
*/
class MidiParser_SCI : public MidiParser {
public:
MidiParser_SCI(SciVersion soundVersion, SciMusic *music);
~MidiParser_SCI();
void mainThreadBegin();
void mainThreadEnd();
bool loadMusic(SoundResource::Track *track, MusicEntry *psnd, int channelFilterMask, SciVersion soundVersion);
bool loadMusic(byte *, uint32) {
return false;
}
void sendInitCommands();
void unloadMusic();
void setMasterVolume(byte masterVolume);
void setVolume(byte volume);
void stop() {
_abort_parse = true;
allNotesOff();
}
void pause() {
allNotesOff();
if (_resetOnPause)
jumpToTick(0);
}
void allNotesOff();
const byte *getMixedData() const { return _mixedData; }
byte getSongReverb();
void tryToOwnChannels();
void lostChannels();
void sendFromScriptToDriver(uint32 midi);
void sendToDriver(uint32 midi);
void sendToDriver(byte status, byte firstOp, byte secondOp) {
sendToDriver(status | ((uint32)firstOp << 8) | ((uint32)secondOp << 16));
}
protected:
void parseNextEvent(EventInfo &info);
byte *midiMixChannels();
byte *midiFilterChannels(int channelMask);
byte midiGetNextChannel(long ticker);
SciMusic *_music;
// this is set, when main thread calls us -> we send commands to queue instead to driver
bool _mainThreadCalled;
SciVersion _soundVersion;
byte *_mixedData;
SoundResource::Track *_track;
MusicEntry *_pSnd;
uint32 _loopTick;
byte _masterVolume; // the overall master volume (same for all tracks)
byte _volume; // the global volume of the current track
bool _signalSet;
int16 _signalToSet;
bool _dataincAdd;
int16 _dataincToAdd;
bool _resetOnPause;
bool _channelUsed[16];
int16 _channelRemap[16];
bool _channelMuted[16];
byte _channelVolume[16];
};
} // End of namespace Sci
#endif
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