aboutsummaryrefslogtreecommitdiff
path: root/audio/midiparser.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'audio/midiparser.cpp')
-rw-r--r--audio/midiparser.cpp210
1 files changed, 105 insertions, 105 deletions
diff --git a/audio/midiparser.cpp b/audio/midiparser.cpp
index 943a6067a4..eec32c05d1 100644
--- a/audio/midiparser.cpp
+++ b/audio/midiparser.cpp
@@ -32,24 +32,24 @@
//////////////////////////////////////////////////
MidiParser::MidiParser() :
-_hanging_notes_count(0),
+_hangingNotesCount(0),
_driver(0),
-_timer_rate(0x4A0000),
+_timerRate(0x4A0000),
_ppqn(96),
_tempo(500000),
-_psec_per_tick(5208), // 500000 / 96
+_psecPerTick(5208), // 500000 / 96
_autoLoop(false),
_smartJump(false),
_centerPitchWheelOnUnload(false),
_sendSustainOffOnNotesOff(false),
-_num_tracks(0),
-_active_track(255),
-_abort_parse(0) {
- memset(_active_notes, 0, sizeof(_active_notes));
- _next_event.start = NULL;
- _next_event.delta = 0;
- _next_event.event = 0;
- _next_event.length = 0;
+_numTracks(0),
+_activeTrack(255),
+_abortParse(0) {
+ memset(_activeNotes, 0, sizeof(_activeNotes));
+ _nextEvent.start = NULL;
+ _nextEvent.delta = 0;
+ _nextEvent.event = 0;
+ _nextEvent.length = 0;
}
void MidiParser::property(int prop, int value) {
@@ -76,7 +76,7 @@ void MidiParser::sendToDriver(uint32 b) {
void MidiParser::setTempo(uint32 tempo) {
_tempo = tempo;
if (_ppqn)
- _psec_per_tick = (tempo + (_ppqn >> 2)) / _ppqn;
+ _psecPerTick = (tempo + (_ppqn >> 2)) / _ppqn;
}
// This is the conventional (i.e. SMF) variable length quantity
@@ -100,44 +100,44 @@ void MidiParser::activeNote(byte channel, byte note, bool active) {
return;
if (active)
- _active_notes[note] |= (1 << channel);
+ _activeNotes[note] |= (1 << channel);
else
- _active_notes[note] &= ~(1 << channel);
+ _activeNotes[note] &= ~(1 << channel);
// See if there are hanging notes that we can cancel
- NoteTimer *ptr = _hanging_notes;
+ NoteTimer *ptr = _hangingNotes;
int i;
- for (i = ARRAYSIZE(_hanging_notes); i; --i, ++ptr) {
- if (ptr->channel == channel && ptr->note == note && ptr->time_left) {
- ptr->time_left = 0;
- --_hanging_notes_count;
+ for (i = ARRAYSIZE(_hangingNotes); i; --i, ++ptr) {
+ if (ptr->channel == channel && ptr->note == note && ptr->timeLeft) {
+ ptr->timeLeft = 0;
+ --_hangingNotesCount;
break;
}
}
}
-void MidiParser::hangingNote(byte channel, byte note, uint32 time_left, bool recycle) {
+void MidiParser::hangingNote(byte channel, byte note, uint32 timeLeft, bool recycle) {
NoteTimer *best = 0;
- NoteTimer *ptr = _hanging_notes;
+ NoteTimer *ptr = _hangingNotes;
int i;
- if (_hanging_notes_count >= ARRAYSIZE(_hanging_notes)) {
+ if (_hangingNotesCount >= ARRAYSIZE(_hangingNotes)) {
warning("MidiParser::hangingNote(): Exceeded polyphony");
return;
}
- for (i = ARRAYSIZE(_hanging_notes); i; --i, ++ptr) {
+ for (i = ARRAYSIZE(_hangingNotes); i; --i, ++ptr) {
if (ptr->channel == channel && ptr->note == note) {
- if (ptr->time_left && ptr->time_left < time_left && recycle)
+ if (ptr->timeLeft && ptr->timeLeft < timeLeft && recycle)
return;
best = ptr;
- if (ptr->time_left) {
+ if (ptr->timeLeft) {
if (recycle)
sendToDriver(0x80 | channel, note, 0);
- --_hanging_notes_count;
+ --_hangingNotesCount;
}
break;
- } else if (!best && ptr->time_left == 0) {
+ } else if (!best && ptr->timeLeft == 0) {
best = ptr;
}
}
@@ -146,14 +146,14 @@ void MidiParser::hangingNote(byte channel, byte note, uint32 time_left, bool rec
// length, if the note should be turned on and off in
// the same iteration. For now just set it to 1 and
// we'll turn it off in the next cycle.
- if (!time_left || time_left & 0x80000000)
- time_left = 1;
+ if (!timeLeft || timeLeft & 0x80000000)
+ timeLeft = 1;
if (best) {
best->channel = channel;
best->note = note;
- best->time_left = time_left;
- ++_hanging_notes_count;
+ best->timeLeft = timeLeft;
+ ++_hangingNotesCount;
} else {
// We checked this up top. We should never get here!
warning("MidiParser::hangingNote(): Internal error");
@@ -161,45 +161,45 @@ void MidiParser::hangingNote(byte channel, byte note, uint32 time_left, bool rec
}
void MidiParser::onTimer() {
- uint32 end_time;
- uint32 event_time;
+ uint32 endTime;
+ uint32 eventTime;
- if (!_position._play_pos || !_driver)
+ if (!_position._playPos || !_driver)
return;
- _abort_parse = false;
- end_time = _position._play_time + _timer_rate;
+ _abortParse = false;
+ endTime = _position._playTime + _timerRate;
// Scan our hanging notes for any
// that should be turned off.
- if (_hanging_notes_count) {
- NoteTimer *ptr = &_hanging_notes[0];
+ if (_hangingNotesCount) {
+ NoteTimer *ptr = &_hangingNotes[0];
int i;
- for (i = ARRAYSIZE(_hanging_notes); i; --i, ++ptr) {
- if (ptr->time_left) {
- if (ptr->time_left <= _timer_rate) {
+ for (i = ARRAYSIZE(_hangingNotes); i; --i, ++ptr) {
+ if (ptr->timeLeft) {
+ if (ptr->timeLeft <= _timerRate) {
sendToDriver(0x80 | ptr->channel, ptr->note, 0);
- ptr->time_left = 0;
- --_hanging_notes_count;
+ ptr->timeLeft = 0;
+ --_hangingNotesCount;
} else {
- ptr->time_left -= _timer_rate;
+ ptr->timeLeft -= _timerRate;
}
}
}
}
- while (!_abort_parse) {
- EventInfo &info = _next_event;
+ while (!_abortParse) {
+ EventInfo &info = _nextEvent;
- event_time = _position._last_event_time + info.delta * _psec_per_tick;
- if (event_time > end_time)
+ eventTime = _position._lastEventTime + info.delta * _psecPerTick;
+ if (eventTime > endTime)
break;
// Process the next info.
- _position._last_event_tick += info.delta;
+ _position._lastEventTick += info.delta;
if (info.event < 0x80) {
warning("Bad command or running status %02X", info.event);
- _position._play_pos = 0;
+ _position._playPos = 0;
return;
}
@@ -217,7 +217,7 @@ void MidiParser::onTimer() {
// as well as sending it to the output device.
if (_autoLoop) {
jumpToTick(0);
- parseNextEvent(_next_event);
+ parseNextEvent(_nextEvent);
} else {
stopPlaying();
_driver->metaEvent(info.ext.type, info.ext.data, (uint16)info.length);
@@ -234,7 +234,7 @@ void MidiParser::onTimer() {
activeNote(info.channel(), info.basic.param1, false);
} else if (info.command() == 0x9) {
if (info.length > 0)
- hangingNote(info.channel(), info.basic.param1, info.length * _psec_per_tick - (end_time - event_time));
+ hangingNote(info.channel(), info.basic.param1, info.length * _psecPerTick - (endTime - eventTime));
else
activeNote(info.channel(), info.basic.param1, true);
}
@@ -242,15 +242,15 @@ void MidiParser::onTimer() {
}
- if (!_abort_parse) {
- _position._last_event_time = event_time;
- parseNextEvent(_next_event);
+ if (!_abortParse) {
+ _position._lastEventTime = eventTime;
+ parseNextEvent(_nextEvent);
}
}
- if (!_abort_parse) {
- _position._play_time = end_time;
- _position._play_tick = (_position._play_time - _position._last_event_time) / _psec_per_tick + _position._last_event_tick;
+ if (!_abortParse) {
+ _position._playTime = endTime;
+ _position._playTick = (_position._playTime - _position._lastEventTime) / _psecPerTick + _position._lastEventTick;
}
}
@@ -263,20 +263,20 @@ void MidiParser::allNotesOff() {
// Turn off all active notes
for (i = 0; i < 128; ++i) {
for (j = 0; j < 16; ++j) {
- if (_active_notes[i] & (1 << j)) {
+ if (_activeNotes[i] & (1 << j)) {
sendToDriver(0x80 | j, i, 0);
}
}
}
// Turn off all hanging notes
- for (i = 0; i < ARRAYSIZE(_hanging_notes); i++) {
- if (_hanging_notes[i].time_left) {
- sendToDriver(0x80 | _hanging_notes[i].channel, _hanging_notes[i].note, 0);
- _hanging_notes[i].time_left = 0;
+ for (i = 0; i < ARRAYSIZE(_hangingNotes); i++) {
+ if (_hangingNotes[i].timeLeft) {
+ sendToDriver(0x80 | _hangingNotes[i].channel, _hangingNotes[i].note, 0);
+ _hangingNotes[i].timeLeft = 0;
}
}
- _hanging_notes_count = 0;
+ _hangingNotesCount = 0;
// To be sure, send an "All Note Off" event (but not all MIDI devices
// support this...).
@@ -287,7 +287,7 @@ void MidiParser::allNotesOff() {
sendToDriver(0xB0 | i, 0x40, 0); // Also send a sustain off event (bug #3116608)
}
- memset(_active_notes, 0, sizeof(_active_notes));
+ memset(_activeNotes, 0, sizeof(_activeNotes));
}
void MidiParser::resetTracking() {
@@ -295,7 +295,7 @@ void MidiParser::resetTracking() {
}
bool MidiParser::setTrack(int track) {
- if (track < 0 || track >= _num_tracks)
+ if (track < 0 || track >= _numTracks)
return false;
// We allow restarting the track via setTrack when
// it isn't playing anymore. This allows us to reuse
@@ -308,7 +308,7 @@ bool MidiParser::setTrack(int track) {
// TODO: Check if any engine has problem with this
// handling, if so we need to find a better way to handle
// track restarts. (KYRA relies on this working)
- else if (track == _active_track && isPlaying())
+ else if (track == _activeTrack && isPlaying())
return true;
if (_smartJump)
@@ -317,10 +317,10 @@ bool MidiParser::setTrack(int track) {
allNotesOff();
resetTracking();
- memset(_active_notes, 0, sizeof(_active_notes));
- _active_track = track;
- _position._play_pos = _tracks[track];
- parseNextEvent(_next_event);
+ memset(_activeNotes, 0, sizeof(_activeNotes));
+ _activeTrack = track;
+ _position._playPos = _tracks[track];
+ parseNextEvent(_nextEvent);
return true;
}
@@ -332,29 +332,29 @@ void MidiParser::stopPlaying() {
void MidiParser::hangAllActiveNotes() {
// Search for note off events until we have
// accounted for every active note.
- uint16 temp_active[128];
- memcpy(temp_active, _active_notes, sizeof (temp_active));
+ uint16 tempActive[128];
+ memcpy(tempActive, _activeNotes, sizeof (tempActive));
- uint32 advance_tick = _position._last_event_tick;
+ uint32 advanceTick = _position._lastEventTick;
while (true) {
int i;
for (i = 0; i < 128; ++i)
- if (temp_active[i] != 0)
+ if (tempActive[i] != 0)
break;
if (i == 128)
break;
- parseNextEvent(_next_event);
- advance_tick += _next_event.delta;
- if (_next_event.command() == 0x8) {
- if (temp_active[_next_event.basic.param1] & (1 << _next_event.channel())) {
- hangingNote(_next_event.channel(), _next_event.basic.param1, (advance_tick - _position._last_event_tick) * _psec_per_tick, false);
- temp_active[_next_event.basic.param1] &= ~(1 << _next_event.channel());
+ parseNextEvent(_nextEvent);
+ advanceTick += _nextEvent.delta;
+ if (_nextEvent.command() == 0x8) {
+ if (tempActive[_nextEvent.basic.param1] & (1 << _nextEvent.channel())) {
+ hangingNote(_nextEvent.channel(), _nextEvent.basic.param1, (advanceTick - _position._lastEventTick) * _psecPerTick, false);
+ tempActive[_nextEvent.basic.param1] &= ~(1 << _nextEvent.channel());
}
- } else if (_next_event.event == 0xFF && _next_event.ext.type == 0x2F) {
+ } else if (_nextEvent.event == 0xFF && _nextEvent.ext.type == 0x2F) {
// warning("MidiParser::hangAllActiveNotes(): Hit End of Track with active notes left");
for (i = 0; i < 128; ++i) {
for (int j = 0; j < 16; ++j) {
- if (temp_active[i] & (1 << j)) {
+ if (tempActive[i] & (1 << j)) {
activeNote(j, i, false);
sendToDriver(0x80 | j, i, 0);
}
@@ -366,33 +366,33 @@ void MidiParser::hangAllActiveNotes() {
}
bool MidiParser::jumpToTick(uint32 tick, bool fireEvents, bool stopNotes, bool dontSendNoteOn) {
- if (_active_track >= _num_tracks)
+ if (_activeTrack >= _numTracks)
return false;
Tracker currentPos(_position);
- EventInfo currentEvent(_next_event);
+ EventInfo currentEvent(_nextEvent);
resetTracking();
- _position._play_pos = _tracks[_active_track];
- parseNextEvent(_next_event);
+ _position._playPos = _tracks[_activeTrack];
+ parseNextEvent(_nextEvent);
if (tick > 0) {
while (true) {
- EventInfo &info = _next_event;
- if (_position._last_event_tick + info.delta >= tick) {
- _position._play_time += (tick - _position._last_event_tick) * _psec_per_tick;
- _position._play_tick = tick;
+ EventInfo &info = _nextEvent;
+ if (_position._lastEventTick + info.delta >= tick) {
+ _position._playTime += (tick - _position._lastEventTick) * _psecPerTick;
+ _position._playTick = tick;
break;
}
- _position._last_event_tick += info.delta;
- _position._last_event_time += info.delta * _psec_per_tick;
- _position._play_tick = _position._last_event_tick;
- _position._play_time = _position._last_event_time;
+ _position._lastEventTick += info.delta;
+ _position._lastEventTime += info.delta * _psecPerTick;
+ _position._playTick = _position._lastEventTick;
+ _position._playTime = _position._lastEventTime;
if (info.event == 0xFF) {
if (info.ext.type == 0x2F) { // End of track
_position = currentPos;
- _next_event = currentEvent;
+ _nextEvent = currentEvent;
return false;
} else {
if (info.ext.type == 0x51 && info.length >= 3) // Tempo
@@ -419,36 +419,36 @@ bool MidiParser::jumpToTick(uint32 tick, bool fireEvents, bool stopNotes, bool d
}
}
- parseNextEvent(_next_event);
+ parseNextEvent(_nextEvent);
}
}
if (stopNotes) {
- if (!_smartJump || !currentPos._play_pos) {
+ if (!_smartJump || !currentPos._playPos) {
allNotesOff();
} else {
- EventInfo targetEvent(_next_event);
+ EventInfo targetEvent(_nextEvent);
Tracker targetPosition(_position);
_position = currentPos;
- _next_event = currentEvent;
+ _nextEvent = currentEvent;
hangAllActiveNotes();
- _next_event = targetEvent;
+ _nextEvent = targetEvent;
_position = targetPosition;
}
}
- _abort_parse = true;
+ _abortParse = true;
return true;
}
void MidiParser::unloadMusic() {
resetTracking();
allNotesOff();
- _num_tracks = 0;
- _active_track = 255;
- _abort_parse = true;
+ _numTracks = 0;
+ _activeTrack = 255;
+ _abortParse = true;
if (_centerPitchWheelOnUnload) {
// Center the pitch wheels in preparation for the next piece of
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-07 00:29:39 +0000