along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id$
*/
#ifndef __ardour_tempo_h__
#include <vector>
#include <cmath>
#include <glibmm/thread.h>
-#include <pbd/undo.h>
-#include <pbd/stateful.h>
+
+#include "pbd/undo.h"
+#include "pbd/stateful.h"
+#include "pbd/statefuldestructible.h"
+
#include <sigc++/signal.h>
-#include <ardour/ardour.h>
-#include <ardour/state_manager.h>
+#include "ardour/ardour.h"
class XMLNode;
using std::vector;
namespace ARDOUR {
-
+class Meter;
class Tempo {
public:
- Tempo (double bpm)
- : _beats_per_minute (bpm) {}
- Tempo (const Tempo& other) {
- _beats_per_minute = other._beats_per_minute;
- }
- void operator= (const Tempo& other) {
- if (&other != this) {
- _beats_per_minute = other._beats_per_minute;
- }
- }
+ Tempo (double bpm, double type=4.0) // defaulting to quarter note
+ : _beats_per_minute (bpm), _note_type(type) {}
- double beats_per_minute () const { return _beats_per_minute; }
- double frames_per_beat (jack_nframes_t sr) const {
- return ((60.0 * sr) / _beats_per_minute);
- }
+ double beats_per_minute () const { return _beats_per_minute;}
+ double note_type () const { return _note_type;}
+ double frames_per_beat (nframes_t sr, const Meter& meter) const;
protected:
double _beats_per_minute;
+ double _note_type;
};
class Meter {
Meter (double bpb, double bt)
: _beats_per_bar (bpb), _note_type (bt) {}
- Meter (const Meter& other) {
- _beats_per_bar = other._beats_per_bar;
- _note_type = other._note_type;
- }
- void operator= (const Meter& other) {
- if (&other != this) {
- _beats_per_bar = other._beats_per_bar;
- _note_type = other._note_type;
- }
- }
double beats_per_bar () const { return _beats_per_bar; }
double note_divisor() const { return _note_type; }
- double frames_per_bar (const Tempo&, jack_nframes_t sr) const;
+ double frames_per_bar (const Tempo&, nframes_t sr) const;
protected:
-
- /* this is the number of beats in a bar. it is a real value
- because there are musical traditions on our planet
- that do not limit themselves to integral numbers of beats
- per bar.
+ /** The number of beats in a bar. This is a real value because
+ there are musical traditions on our planet that do not limit
+ themselves to integral numbers of beats per bar.
*/
-
double _beats_per_bar;
- /* this is the type of "note" that a beat represents. for example,
- 4.0 would be a quarter (crotchet) note, 8.0 would be an eighth
- (quaver) note, etc.
+ /** The type of "note" that a beat represents. For example, 4.0 is
+ a quarter (crotchet) note, 8.0 is an eighth (quaver) note, etc.
*/
-
double _note_type;
};
public:
MetricSection (const BBT_Time& start)
: _start (start), _frame (0), _movable (true) {}
+ MetricSection (nframes_t start)
+ : _frame (start), _movable (true) {}
+
virtual ~MetricSection() {}
const BBT_Time& start() const { return _start; }
- const jack_nframes_t frame() const { return _frame; }
+ nframes_t frame() const { return _frame; }
void set_movable (bool yn) { _movable = yn; }
bool movable() const { return _movable; }
- virtual void set_frame (jack_nframes_t f) {
+ virtual void set_frame (nframes_t f) {
_frame = f;
- };
+ }
virtual void set_start (const BBT_Time& w) {
_start = w;
but we do want them to control their own
XML state information.
*/
-
virtual XMLNode& get_state() const = 0;
private:
BBT_Time _start;
- jack_nframes_t _frame;
+ nframes_t _frame;
bool _movable;
};
public:
MeterSection (const BBT_Time& start, double bpb, double note_type)
: MetricSection (start), Meter (bpb, note_type) {}
+ MeterSection (nframes_t start, double bpb, double note_type)
+ : MetricSection (start), Meter (bpb, note_type) {}
MeterSection (const XMLNode&);
static const string xml_state_node_name;
class TempoSection : public MetricSection, public Tempo {
public:
- TempoSection (const BBT_Time& start, double qpm)
- : MetricSection (start), Tempo (qpm) {}
+ TempoSection (const BBT_Time& start, double qpm, double note_type)
+ : MetricSection (start), Tempo (qpm, note_type) {}
+ TempoSection (nframes_t start, double qpm, double note_type)
+ : MetricSection (start), Tempo (qpm, note_type) {}
TempoSection (const XMLNode&);
static const string xml_state_node_name;
typedef list<MetricSection*> Metrics;
-class TempoMapState : public StateManager::State {
+class TempoMap : public PBD::StatefulDestructible
+{
public:
- TempoMapState (std::string why)
- : StateManager::State (why) {
- metrics = new Metrics;
- }
-
- Metrics *metrics;
-};
-
-class TempoMap : public Stateful, public StateManager {
- public:
-
- TempoMap (jack_nframes_t frame_rate);
+ TempoMap (nframes_t frame_rate);
~TempoMap();
/* measure-based stuff */
struct BBTPoint {
BBTPointType type;
- jack_nframes_t frame;
+ nframes_t frame;
const Meter* meter;
const Tempo* tempo;
uint32_t bar;
uint32_t beat;
- BBTPoint (const Meter& m, const Tempo& t, jack_nframes_t f, BBTPointType ty, uint32_t b, uint32_t e)
+ BBTPoint (const Meter& m, const Tempo& t, nframes_t f,
+ BBTPointType ty, uint32_t b, uint32_t e)
: type (ty), frame (f), meter (&m), tempo (&t), bar (b), beat (e) {}
};
typedef vector<BBTPoint> BBTPointList;
template<class T> void apply_with_metrics (T& obj, void (T::*method)(const Metrics&)) {
- Glib::Mutex::Lock lm (lock);
+ Glib::RWLock::ReaderLock lm (lock);
(obj.*method)(*metrics);
}
- BBTPointList *get_points (jack_nframes_t start, jack_nframes_t end) const;
+ BBTPointList *get_points (nframes_t start, nframes_t end) const;
- void bbt_time (jack_nframes_t when, BBT_Time&) const;
- jack_nframes_t frame_time (const BBT_Time&) const;
- jack_nframes_t bbt_duration_at (jack_nframes_t, const BBT_Time&, int dir) const;
+ void bbt_time (nframes_t when, BBT_Time&) const;
+ nframes_t frame_time (const BBT_Time&) const;
+ nframes_t bbt_duration_at (nframes_t, const BBT_Time&, int dir) const;
static const Tempo& default_tempo() { return _default_tempo; }
static const Meter& default_meter() { return _default_meter; }
- const Tempo& tempo_at (jack_nframes_t);
- const Meter& meter_at (jack_nframes_t);
+ const Tempo& tempo_at (nframes_t);
+ const Meter& meter_at (nframes_t);
+
+ const TempoSection& tempo_section_at (nframes_t);
void add_tempo(const Tempo&, BBT_Time where);
void add_meter(const Meter&, BBT_Time where);
+ void add_tempo(const Tempo&, nframes_t where);
+ void add_meter(const Meter&, nframes_t where);
+
void move_tempo (TempoSection&, const BBT_Time& to);
void move_meter (MeterSection&, const BBT_Time& to);
void replace_tempo (TempoSection& existing, const Tempo& replacement);
void replace_meter (MeterSection& existing, const Meter& replacement);
+ nframes_t round_to_bar (nframes_t frame, int dir);
+ nframes_t round_to_beat (nframes_t frame, int dir);
+ nframes_t round_to_beat_subdivision (nframes_t fr, int sub_num);
+ nframes_t round_to_tick (nframes_t frame, int dir);
- jack_nframes_t round_to_bar (jack_nframes_t frame, int dir);
-
- jack_nframes_t round_to_beat (jack_nframes_t frame, int dir);
-
- jack_nframes_t round_to_beat_subdivision (jack_nframes_t fr, int sub_num);
-
- jack_nframes_t round_to_tick (jack_nframes_t frame, int dir);
-
- void set_length (jack_nframes_t frames);
+ void set_length (nframes_t frames);
XMLNode& get_state (void);
int set_state (const XMLNode&);
void dump (std::ostream&) const;
void clear ();
- UndoAction get_memento() const;
-
- /* this is a helper class that we use to be able to keep
- track of which meter *AND* tempo are in effect at
- a given point in time.
+ /** Helper class that we use to be able to keep track of which
+ meter *AND* tempo are in effect at a given point in time.
*/
-
class Metric {
public:
Metric (const Meter& m, const Tempo& t) : _meter (&m), _tempo (&t), _frame (0) {}
void set_tempo (const Tempo& t) { _tempo = &t; }
void set_meter (const Meter& m) { _meter = &m; }
- void set_frame (jack_nframes_t f) { _frame = f; }
+ void set_frame (nframes_t f) { _frame = f; }
void set_start (const BBT_Time& t) { _start = t; }
const Meter& meter() const { return *_meter; }
const Tempo& tempo() const { return *_tempo; }
- jack_nframes_t frame() const { return _frame; }
+ nframes_t frame() const { return _frame; }
const BBT_Time& start() const { return _start; }
private:
const Meter* _meter;
const Tempo* _tempo;
- jack_nframes_t _frame;
+ nframes_t _frame;
BBT_Time _start;
-
};
Metric metric_at (BBT_Time bbt) const;
- Metric metric_at (jack_nframes_t) const;
- void bbt_time_with_metric (jack_nframes_t, BBT_Time&, const Metric&) const;
+ Metric metric_at (nframes_t) const;
+ void bbt_time_with_metric (nframes_t, BBT_Time&, const Metric&) const;
+
+ void change_existing_tempo_at (nframes_t, double bpm, double note_type);
+ void change_initial_tempo (double bpm, double note_type);
+
+ int n_tempos () const;
+ int n_meters () const;
+
+ sigc::signal<void,ARDOUR::Change> StateChanged;
private:
static Tempo _default_tempo;
static Meter _default_meter;
- Metrics *metrics;
- jack_nframes_t _frame_rate;
- jack_nframes_t last_bbt_when;
- bool last_bbt_valid;
- BBT_Time last_bbt;
- mutable Glib::Mutex lock;
+ Metrics* metrics;
+ nframes_t _frame_rate;
+ nframes_t last_bbt_when;
+ bool last_bbt_valid;
+ BBT_Time last_bbt;
+ mutable Glib::RWLock lock;
- void timestamp_metrics ();
-
+ void timestamp_metrics (bool use_bbt);
- jack_nframes_t round_to_type (jack_nframes_t fr, int dir, BBTPointType);
+ nframes_t round_to_type (nframes_t fr, int dir, BBTPointType);
- jack_nframes_t frame_time_unlocked (const BBT_Time&) const;
+ nframes_t frame_time_unlocked (const BBT_Time&) const;
- void bbt_time_unlocked (jack_nframes_t, BBT_Time&) const;
+ void bbt_time_unlocked (nframes_t, BBT_Time&) const;
- jack_nframes_t bbt_duration_at_unlocked (const BBT_Time& when, const BBT_Time& bbt, int dir) const;
+ nframes_t bbt_duration_at_unlocked (const BBT_Time& when, const BBT_Time& bbt, int dir) const;
const MeterSection& first_meter() const;
const TempoSection& first_tempo() const;
- jack_nframes_t count_frames_between (const BBT_Time&, const BBT_Time&) const;
- jack_nframes_t count_frames_between_metrics (const Meter&, const Tempo&, const BBT_Time&, const BBT_Time&) const;
+ nframes_t count_frames_between (const BBT_Time&, const BBT_Time&) const;
+ nframes_t count_frames_between_metrics (const Meter&, const Tempo&,
+ const BBT_Time&, const BBT_Time&) const;
int move_metric_section (MetricSection&, const BBT_Time& to);
- void do_insert (MetricSection* section);
-
- Change restore_state (StateManager::State&);
- StateManager::State* state_factory (std::string why) const;
-
- bool in_set_state;
-
- /* override state_manager::save_state so we can check in_set_state */
-
- void save_state (std::string why);
-
+ void do_insert (MetricSection* section, bool with_bbt);
};
}; /* namespace ARDOUR */
projects / ardour.git / blobdiff