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Fix: Correctly reset playback between songs in win32_m driver

This commit is contained in:
Niels Martin Hansen 2019-07-04 21:51:01 +02:00
parent 27b7c5a5fd
commit a0c78c73e3
1 changed files with 60 additions and 55 deletions
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115
src/music/win32_m.cpp
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@ -36,7 +36,7 @@ static struct {
std::mutex lock; ///< synchronization for playback status fields
bool playing; ///< flag indicating that playback is active
bool do_start; ///< flag for starting playback of next_file at next opportunity
int do_start; ///< flag for starting playback of next_file at next opportunity
bool do_stop; ///< flag for stopping playback at next opportunity
byte current_volume; ///< current effective volume setting
byte new_volume; ///< volume setting to change to
@ -115,66 +115,77 @@ void CALLBACK TimerCallback(UINT uTimerID, UINT, DWORD_PTR dwUser, DWORD_PTR, DW
std::unique_lock<std::mutex> mutex_lock(_midi.lock, std::defer_lock);
if (!mutex_lock.try_lock()) return;
{
/* check for stop */
if (_midi.do_stop) {
DEBUG(driver, 2, "Win32-MIDI: timer: do_stop is set");
midiOutReset(_midi.midi_out);
_midi.playing = false;
_midi.do_stop = false;
/* check for stop */
if (_midi.do_stop) {
DEBUG(driver, 2, "Win32-MIDI: timer: do_stop is set");
midiOutReset(_midi.midi_out);
_midi.playing = false;
_midi.do_stop = false;
return;
}
/* check for start/restart/change song */
if (_midi.do_start != 0) {
/* Have a delay between playback start steps, prevents jumbled-together notes at the start of song */
if (timeGetTime() - _midi.playback_start_time < 50) {
return;
}
DEBUG(driver, 2, "Win32-MIDI: timer: do_start step %d", _midi.do_start);
/* check for start/restart/change song */
if (_midi.do_start) {
DEBUG(driver, 2, "Win32-MIDI: timer: do_start is set");
if (_midi.playing) {
midiOutReset(_midi.midi_out);
/* Some songs change the "Pitch bend range" registered
* parameter. If this doesn't get reset, everything else
* will start sounding wrong. */
for (int ch = 0; ch < 16; ch++) {
/* Running status, only need status for first message */
/* Select RPN 00.00, set value to 02.00, and unselect again */
TransmitChannelMsg(MIDIST_CONTROLLER | ch, MIDICT_RPN_SELECT_LO, 0x00);
TransmitChannelMsg(MIDICT_RPN_SELECT_HI, 0x00);
TransmitChannelMsg(MIDICT_DATAENTRY, 0x02);
TransmitChannelMsg(MIDICT_DATAENTRY_LO, 0x00);
TransmitChannelMsg(MIDICT_RPN_SELECT_LO, 0x7F);
TransmitChannelMsg(MIDICT_RPN_SELECT_HI, 0x7F);
}
}
if (_midi.do_start == 1) {
/* Send "all notes off" */
midiOutReset(_midi.midi_out);
_midi.playback_start_time = timeGetTime();
_midi.do_start = 2;
return;
} else if (_midi.do_start == 2) {
/* Reset the device to General MIDI defaults */
TransmitStandardSysex(MidiSysexMessage::ResetGM);
_midi.playback_start_time = timeGetTime();
_midi.do_start = 3;
return;
} else if (_midi.do_start == 3) {
/* Set up device-specific effects */
TransmitStandardSysex(MidiSysexMessage::RolandSetReverb);
_midi.playback_start_time = timeGetTime();
_midi.do_start = 4;
return;
} else if (_midi.do_start == 4) {
/* Load the new file */
_midi.current_file.MoveFrom(_midi.next_file);
std::swap(_midi.next_segment, _midi.current_segment);
_midi.current_segment.start_block = 0;
_midi.playback_start_time = timeGetTime();
_midi.playing = true;
_midi.do_start = false;
_midi.do_start = 0;
_midi.current_block = 0;
MemSetT<byte>(_midi.channel_volumes, 127, lengthof(_midi.channel_volumes));
} else if (!_midi.playing) {
/* not playing, stop the timer */
DEBUG(driver, 2, "Win32-MIDI: timer: not playing, stopping timer");
timeKillEvent(uTimerID);
_midi.timer_id = 0;
return;
}
} else if (!_midi.playing) {
/* not playing, stop the timer */
DEBUG(driver, 2, "Win32-MIDI: timer: not playing, stopping timer");
timeKillEvent(uTimerID);
_midi.timer_id = 0;
return;
}
/* check for volume change */
static int volume_throttle = 0;
if (_midi.current_volume != _midi.new_volume) {
if (volume_throttle == 0) {
DEBUG(driver, 2, "Win32-MIDI: timer: volume change");
_midi.current_volume = _midi.new_volume;
volume_throttle = 20 / _midi.time_period;
for (int ch = 0; ch < 16; ch++) {
int vol = ScaleVolume(_midi.channel_volumes[ch], _midi.current_volume);
TransmitChannelMsg(MIDIST_CONTROLLER | ch, MIDICT_CHANVOLUME, vol);
}
} else {
volume_throttle--;
/* check for volume change */
static int volume_throttle = 0;
if (_midi.current_volume != _midi.new_volume) {
if (volume_throttle == 0) {
DEBUG(driver, 2, "Win32-MIDI: timer: volume change");
_midi.current_volume = _midi.new_volume;
volume_throttle = 20 / _midi.time_period;
for (int ch = 0; ch < 16; ch++) {
byte vol = ScaleVolume(_midi.channel_volumes[ch], _midi.current_volume);
TransmitChannelMsg(MIDIST_CONTROLLER | ch, MIDICT_CHANVOLUME, vol);
}
} else {
volume_throttle--;
}
}
@ -326,7 +337,7 @@ void MusicDriver_Win32::PlaySong(const MusicSongInfo &song)
DEBUG(driver, 2, "Win32-MIDI: PlaySong: setting flag");
_midi.do_stop = _midi.playing;
_midi.do_start = true;
_midi.do_start = 1;
if (_midi.timer_id == 0) {
DEBUG(driver, 2, "Win32-MIDI: PlaySong: starting timer");
@ -344,7 +355,7 @@ void MusicDriver_Win32::StopSong()
bool MusicDriver_Win32::IsSongPlaying()
{
return _midi.playing || _midi.do_start;
return _midi.playing || (_midi.do_start != 0);
}
void MusicDriver_Win32::SetVolume(byte vol)
@ -375,12 +386,6 @@ const char *MusicDriver_Win32::Start(const char * const *parm)
midiOutReset(_midi.midi_out);
/* Standard "Enable General MIDI" message */
TransmitStandardSysex(MidiSysexMessage::ResetGM);
/* Roland-specific reverb room control, used by the original game */
TransmitStandardSysex(MidiSysexMessage::RolandSetReverb);
/* prepare multimedia timer */
TIMECAPS timecaps;
if (timeGetDevCaps(&timecaps, sizeof(timecaps)) == MMSYSERR_NOERROR) {