void
DecodedStream::SendData()
{
AssertOwnerThread();
MOZ_ASSERT(mStartTime.isSome(), "Must be called after StartPlayback()");
// Not yet created on the main thread. MDSM will try again later.
if (!mData) {
return;
}
// Nothing to do when the stream is finished.
if (mData->mHaveSentFinish) {
return;
}
SendAudio(mParams.mVolume, mSameOrigin, mPrincipalHandle);
SendVideo(mSameOrigin, mPrincipalHandle);
AdvanceTracks();
bool finished = (!mInfo.HasAudio() || mAudioQueue.IsFinished()) &&
(!mInfo.HasVideo() || mVideoQueue.IsFinished());
if (finished && !mData->mHaveSentFinish) {
mData->mHaveSentFinish = true;
mData->mStream->Finish();
}
}
void ShowPanLane(Trk* trk, Pattern* pt)
{
trk->pan_lane.visible = true;
trk->end_line += trk->pan_lane.height;
trk->UpdateLaneBases();
pt->track_line_end += trk->vol_lane.height;
pt->num_lines += trk->vol_lane.height;
AdvanceTracks(trk->next, trk->pan_lane.height, pt);
}
void HidePanLane(Trk* trk, Pattern* pt)
{
trk->pan_lane.visible = false;
trk->end_line -= trk->pan_lane.height;
trk->UpdateLaneBases();
pt->track_line_end -= trk->pan_lane.height;
pt->num_lines -= trk->pan_lane.height;
AdvanceTracks(trk->next, -trk->pan_lane.height, pt);
}
DWORD *MIDISong2::MakeEvents(DWORD *events, DWORD *max_event_p, DWORD max_time)
{
DWORD *start_events;
DWORD tot_time = 0;
DWORD time = 0;
DWORD delay;
start_events = events;
while (TrackDue && events < max_event_p && tot_time <= max_time)
{
// It's possible that this tick may be nothing but meta-events and
// not generate any real events. Repeat this until we actually
// get some output so we don't send an empty buffer to the MIDI
// device.
do
{
delay = TrackDue->Delay;
time += delay;
// Advance time for all tracks by the amount needed for the one up next.
tot_time += delay * Tempo / Division;
AdvanceTracks(delay);
// Play all events for this tick.
do
{
bool sysex_noroom = false;
DWORD *new_events = SendCommand(events, TrackDue, time, max_event_p - events, sysex_noroom);
if (sysex_noroom)
{
return events;
}
TrackDue = FindNextDue();
if (new_events != events)
{
time = 0;
}
events = new_events;
}
while (TrackDue && TrackDue->Delay == 0 && events < max_event_p);
}
while (start_events == events && TrackDue);
time = 0;
}
return events;
}
uint32_t *HMISong::MakeEvents(uint32_t *events, uint32_t *max_event_p, uint32_t max_time)
{
uint32_t *start_events;
uint32_t tot_time = 0;
uint32_t time = 0;
uint32_t delay;
start_events = events;
while (TrackDue && events < max_event_p && tot_time <= max_time)
{
// It's possible that this tick may be nothing but meta-events and
// not generate any real events. Repeat this until we actually
// get some output so we don't send an empty buffer to the MIDI
// device.
do
{
delay = TrackDue->Delay;
time += delay;
// Advance time for all tracks by the amount needed for the one up next.
tot_time += delay * Tempo / Division;
AdvanceTracks(delay);
// Play all events for this tick.
do
{
uint32_t *new_events = SendCommand(events, TrackDue, time);
TrackDue = FindNextDue();
if (new_events != events)
{
time = 0;
}
events = new_events;
}
while (TrackDue && TrackDue->Delay == 0 && events < max_event_p);
}
while (start_events == events && TrackDue);
time = 0;
}
return events;
}