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track notes at the region level in MidiPlaylist; resolve them (deliver note offs) if a note spans the end of the region

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git-svn-id: svn://localhost/ardour2/branches/3.0@5804 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
Paul Davis 2009-10-19 17:05:22 +00:00
parent a86b994c68
commit 539a692b0e
11 changed files with 139 additions and 41 deletions
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17
libs/ardour/smf_source.cc
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@ -39,6 +39,7 @@
#include "ardour/event_type_map.h"
#include "ardour/midi_model.h"
#include "ardour/midi_ring_buffer.h"
#include "ardour/midi_state_tracker.h"
#include "ardour/session.h"
#include "ardour/smf_source.h"
@ -98,8 +99,9 @@ SMFSource::~SMFSource ()
/** All stamps in audio frames */
nframes_t
SMFSource::read_unlocked (MidiRingBuffer<nframes_t>& destination, sframes_t source_start,
sframes_t start, nframes_t duration,
sframes_t stamp_offset, sframes_t negative_stamp_offset) const
sframes_t start, nframes_t duration,
sframes_t stamp_offset, sframes_t negative_stamp_offset,
MidiStateTracker* tracker) const
{
int ret = 0;
uint64_t time = 0; // in SMF ticks, 1 tick per _ppqn
@ -166,11 +168,18 @@ SMFSource::read_unlocked (MidiRingBuffer<nframes_t>& destination, sframes_t sour
if (ev_frame_time < start + duration) {
destination.write(ev_frame_time - negative_stamp_offset, ev_type, ev_size, ev_buffer);
if (tracker) {
if (ev_buffer[0] & MIDI_CMD_NOTE_ON) {
tracker->add (ev_buffer[1], ev_buffer[0] & 0xf);
} else if (ev_buffer[0] & MIDI_CMD_NOTE_OFF) {
tracker->remove (ev_buffer[1], ev_buffer[0] & 0xf);
}
}
} else {
break;
}
_read_data_count += ev_size;
if (ev_size > scratch_size) {