void MidiMusicPlayer::playXMIDI(uint32 size, bool loop) {
// It seems like not all music (the main menu music, for instance) set
// all the instruments explicitly. That means the music will sound
// different, depending on which music played before it. This appears
// to be a genuine glitch in the original. For consistency, reset all
// instruments to the default one (piano).
for (int i = 0; i < 16; i++) {
_driver->send(0xC0 | i, 0, 0);
}
// Load XMID resource data
MidiParser *parser = MidiParser::createParser_XMIDI();
if (parser->loadMusic(g_midiBuffer.pDat, size)) {
parser->setTrack(0);
parser->setMidiDriver(this);
parser->setTimerRate(getBaseTempo());
parser->property(MidiParser::mpCenterPitchWheelOnUnload, 1);
parser->property(MidiParser::mpSendSustainOffOnNotesOff, 1);
_parser = parser;
_isLooping = loop;
_isPlaying = true;
} else {
delete parser;
}
}
MidiPlayer::MidiPlayer(M4Engine *vm, MidiDriver *driver) : _vm(vm), _midiData(NULL), _driver(driver), _isPlaying(false), _passThrough(false), _isGM(false) {
memset(_channel, 0, sizeof(_channel));
_masterVolume = 0;
_parser = MidiParser::createParser_SMF();
_parser->setMidiDriver(this);
_parser->setTimerRate(getBaseTempo());
open();
}
void MidiDriver_ThreadedMT32::setTimerCallback(void *timer_param, TimerManager::TimerProc timer_proc) {
if (!_timer_proc || !timer_proc) {
if (_timer_proc)
_vm->_timer->removeTimerProc(_timer_proc);
_timer_proc = timer_proc;
if (timer_proc)
_vm->_timer->installTimerProc(timer_proc, getBaseTempo(), timer_param);
}
}
void MidiMusicPlayer::playSEQ(uint32 size, bool loop) {
// MIDI.DAT holds the file names in DW1 PSX
Common::String baseName((char *)g_midiBuffer.pDat, size);
Common::String seqName = baseName + ".SEQ";
// TODO: Load the instrument bank (<baseName>.VB and <baseName>.VH)
Common::File seqFile;
if (!seqFile.open(seqName))
error("Failed to open SEQ file '%s'", seqName.c_str());
if (seqFile.readUint32LE() != MKTAG('S', 'E', 'Q', 'p'))
error("Failed to find SEQp tag");
// Make sure we don't have a SEP file (with multiple SEQ's inside)
if (seqFile.readUint32BE() != 1)
error("Can only play SEQ files, not SEP");
uint16 ppqn = seqFile.readUint16BE();
uint32 tempo = seqFile.readUint16BE() << 8;
tempo |= seqFile.readByte();
/* uint16 beat = */ seqFile.readUint16BE();
// SEQ is directly based on SMF and we'll use that to our advantage here
// and convert to SMF and then use the SMF MidiParser.
// Calculate the SMF size we'll need
uint32 dataSize = seqFile.size() - 15;
uint32 actualSize = dataSize + 7 + 22;
// Resize the buffer if necessary
if (g_midiBuffer.size < actualSize) {
g_midiBuffer.pDat = (byte *)realloc(g_midiBuffer.pDat, actualSize);
assert(g_midiBuffer.pDat);
}
// Now construct the header
WRITE_BE_UINT32(g_midiBuffer.pDat, MKTAG('M', 'T', 'h', 'd'));
WRITE_BE_UINT32(g_midiBuffer.pDat + 4, 6); // header size
WRITE_BE_UINT16(g_midiBuffer.pDat + 8, 0); // type 0
WRITE_BE_UINT16(g_midiBuffer.pDat + 10, 1); // one track
WRITE_BE_UINT16(g_midiBuffer.pDat + 12, ppqn);
WRITE_BE_UINT32(g_midiBuffer.pDat + 14, MKTAG('M', 'T', 'r', 'k'));
WRITE_BE_UINT32(g_midiBuffer.pDat + 18, dataSize + 7); // SEQ data size + tempo change event size
// Add in a fake tempo change event
WRITE_BE_UINT32(g_midiBuffer.pDat + 22, 0x00FF5103); // no delta, meta event, tempo change, param size = 3
WRITE_BE_UINT16(g_midiBuffer.pDat + 26, tempo >> 8);
g_midiBuffer.pDat[28] = tempo & 0xFF;
// Now copy in the rest of the events
seqFile.read(g_midiBuffer.pDat + 29, dataSize);
seqFile.close();
MidiParser *parser = MidiParser::createParser_SMF();
if (parser->loadMusic(g_midiBuffer.pDat, actualSize)) {
parser->setTrack(0);
parser->setMidiDriver(this);
parser->setTimerRate(getBaseTempo());
parser->property(MidiParser::mpCenterPitchWheelOnUnload, 1);
parser->property(MidiParser::mpSendSustainOffOnNotesOff, 1);
_parser = parser;
_isLooping = loop;
_isPlaying = true;
} else {
delete parser;
}
}
