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Timeline: Fix potential deadlock when stopping recording.

This commit is contained in:
Jonathan Moore Liles 2013-04-05 17:13:51 -07:00
parent 14b8507fcb
commit 9230ab3d04
3 changed files with 34 additions and 4 deletions
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30
timeline/src/Engine/Audio_Region.C
View File

@ -229,6 +229,27 @@ Audio_Region::prepare ( void )
// log_start();
}
class SequenceRedrawRequest {
public:
nframes_t start;
nframes_t length;
Sequence *sequence;
};
static
void
sequence_redraw_request_handle ( void *v )
{
THREAD_ASSERT(UI);
SequenceRedrawRequest *o = (SequenceRedrawRequest*)v;
o->sequence->damage( FL_DAMAGE_USER1, timeline->offset_to_x( o->start ), o->sequence->y(), timeline->ts_to_x( o->length ), o->sequence->h() );
delete o;
};
/** write /nframes/ from /buf/ to source. /buf/ is interleaved and
must match the channel layout of the write source! */
nframes_t
@ -242,9 +263,12 @@ Audio_Region::write ( nframes_t nframes )
if ( W )
{
Fl::lock();
sequence()->damage(FL_DAMAGE_USER1, x(), y(), w(), h());
Fl::unlock();
SequenceRedrawRequest *o = new SequenceRedrawRequest();
o->sequence = sequence();
o->start = _range.start + ( _range.length - timeline->x_to_ts( 20 ) );
o->length = timeline->x_to_ts( 20 );
Fl::awake(sequence_redraw_request_handle, o);
}
}

6
timeline/src/Timeline.C
View File

@ -940,6 +940,12 @@ Timeline::x_to_offset ( int x ) const
return x_to_ts( max( 0, x - Track::width() ) ) + xoffset;
}
int
Timeline::offset_to_x ( nframes_t frame ) const
{
return ts_to_x( frame - xoffset ) + Track::width();
}
/** draws a single measure line */
void
Timeline::draw_measure_cb ( nframes_t frame, const BBT &bbt, void *v )

2
timeline/src/Timeline.H
View File

@ -85,7 +85,6 @@ struct Rectangle
Rectangle ( int X, int Y, int W, int H ) : x( X ), y( Y ), w( W ), h( H ) {}
};
#ifdef USE_WIDGET_FOR_TIMELINE
class Timeline : public Fl_Group, public RWLock
#else
@ -214,6 +213,7 @@ public:
int ts_to_x( nframes_t ts ) const { return ts >> _fpp; }
nframes_t x_to_ts ( int x ) const { return x << _fpp; }
nframes_t x_to_offset ( int x ) const;
int offset_to_x ( nframes_t frame ) const;
float beats_per_minute ( nframes_t when ) const;
int beats_per_bar ( nframes_t when ) const;