use dedicated buffers for route (and track)

[ardour.git] / libs / ardour / ardour / tempo.h

diff --git a/libs/ardour/ardour/tempo.h b/libs/ardour/ardour/tempo.h
index 65e488d9a5506d2eea9f7e42861806597a846c68..bedc825288ce6215194917354047fdde06525574 100644 (file)
--- a/libs/ardour/ardour/tempo.h
+++ b/libs/ardour/ardour/tempo.h
@@ -180,6 +180,19 @@ class TempoMetric {
        void set_frame (framepos_t f)                { _frame = f; }
        void set_start (const Timecode::BBT_Time& t) { _start = t; }
 
+       void set_metric (const MetricSection* section) {
+               const MeterSection* meter;
+               const TempoSection* tempo;
+               if ((meter = dynamic_cast<const MeterSection*>(section))) {
+                       set_meter(*meter);
+               } else if ((tempo = dynamic_cast<const TempoSection*>(section))) {
+                       set_tempo(*tempo);
+               }
+
+               set_frame(section->frame());
+               set_start(section->start());
+       }
+
        const Meter&              meter() const { return *_meter; }
        const Tempo&              tempo() const { return *_tempo; }
        framepos_t                frame() const { return _frame; }
@@ -298,7 +311,13 @@ class TempoMap : public PBD::StatefulDestructible
        void clear ();
 
        TempoMetric metric_at (Timecode::BBT_Time bbt) const;
-       TempoMetric metric_at (framepos_t) const;
+
+       /** Return the TempoMetric at frame @p t, and point @p last to the latest
+        * metric change <= t, if it is non-NULL.
+        */
+       TempoMetric metric_at (framepos_t, Metrics::const_iterator* last=NULL) const;
+
+       Metrics::const_iterator metrics_end() { return metrics.end(); }
 
        void change_existing_tempo_at (framepos_t, double bpm, double note_type);
        void change_initial_tempo (double bpm, double note_type);