/*
- Copyright (C) 2000 Paul Davis
+ Copyright (C) 2000 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id$
*/
#ifndef __ardour_overlap_h__
#include <vector>
#include <algorithm>
+#include <boost/shared_ptr.hpp>
-#include <sigc++/signal.h>
-#include <pbd/undo.h>
+#include "pbd/undo.h"
+#include "pbd/statefuldestructible.h"
-#include <ardour/ardour.h>
-#include <ardour/curve.h>
-#include <ardour/audioregion.h>
-#include <ardour/state_manager.h>
-#include <ardour/crossfade_compare.h>
+#include "ardour/ardour.h"
+#include "ardour/audioregion.h"
+#include "ardour/crossfade_compare.h"
+#include "evoral/Curve.hpp"
namespace ARDOUR {
class AudioRegion;
class Playlist;
-struct CrossfadeState : public StateManager::State {
- CrossfadeState (std::string reason) : StateManager::State (reason) {}
-
- UndoAction fade_in_memento;
- UndoAction fade_out_memento;
- jack_nframes_t position;
- jack_nframes_t length;
- AnchorPoint anchor_point;
- bool follow_overlap;
- bool active;
-};
-
-class Crossfade : public Stateful, public StateManager
+class Crossfade : public ARDOUR::AudioRegion
{
public:
class NoCrossfadeHere: std::exception {
- public:
+ public:
virtual const char *what() const throw() { return "no crossfade should be constructed here"; }
};
-
+
/* constructor for "fixed" xfades at each end of an internal overlap */
- Crossfade (ARDOUR::AudioRegion& in, ARDOUR::AudioRegion& out,
- jack_nframes_t position,
- jack_nframes_t initial_length,
- AnchorPoint);
+ Crossfade (boost::shared_ptr<ARDOUR::AudioRegion> in, boost::shared_ptr<ARDOUR::AudioRegion> out,
+ nframes_t position,
+ nframes_t initial_length,
+ AnchorPoint);
/* constructor for xfade between two regions that are overlapped in any way
except the "internal" case.
*/
-
- Crossfade (ARDOUR::AudioRegion& in, ARDOUR::AudioRegion& out, CrossfadeModel, bool active);
+
+ Crossfade (boost::shared_ptr<ARDOUR::AudioRegion> in, boost::shared_ptr<ARDOUR::AudioRegion> out, CrossfadeModel, bool active);
+
+
+ /* copy constructor to copy a crossfade with new regions. used (for example)
+ when a playlist copy is made
+ */
+ Crossfade (boost::shared_ptr<Crossfade>, boost::shared_ptr<ARDOUR::AudioRegion>, boost::shared_ptr<ARDOUR::AudioRegion>);
/* the usual XML constructor */
- Crossfade (const ARDOUR::Playlist&, XMLNode&);
+ Crossfade (const Playlist&, XMLNode&);
virtual ~Crossfade();
bool operator== (const ARDOUR::Crossfade&);
XMLNode& get_state (void);
- int set_state (const XMLNode&);
-
- ARDOUR::AudioRegion& in() const { return *_in; }
- ARDOUR::AudioRegion& out() const { return *_out; }
-
- jack_nframes_t read_at (Sample *buf, Sample *mixdown_buffer,
- float *gain_buffer, char * workbuf, jack_nframes_t position, jack_nframes_t cnt,
- uint32_t chan_n,
- jack_nframes_t read_frames = 0,
- jack_nframes_t skip_frames = 0);
-
+ int set_state (const XMLNode&, int version);
+
+ boost::shared_ptr<ARDOUR::AudioRegion> in() const { return _in; }
+ boost::shared_ptr<ARDOUR::AudioRegion> out() const { return _out; }
+
+ nframes_t read_at (Sample *buf, Sample *mixdown_buffer,
+ float *gain_buffer, sframes_t position, nframes_t cnt,
+ uint32_t chan_n,
+ nframes_t read_frames = 0,
+ nframes_t skip_frames = 0) const;
+
bool refresh ();
uint32_t upper_layer () const {
return std::min (_in->layer(), _out->layer());
}
- bool involves (ARDOUR::AudioRegion& region) const {
- return _in == ®ion || _out == ®ion;
+ bool involves (boost::shared_ptr<ARDOUR::AudioRegion> region) const {
+ return _in == region || _out == region;
}
- bool involves (ARDOUR::AudioRegion& a, ARDOUR::AudioRegion& b) const {
- return (_in == &a && _out == &b) || (_in == &b && _out == &a);
+ bool involves (boost::shared_ptr<ARDOUR::AudioRegion> a, boost::shared_ptr<ARDOUR::AudioRegion> b) const {
+ return (_in == a && _out == b) || (_in == b && _out == a);
}
- jack_nframes_t length() const { return _length; }
- jack_nframes_t overlap_length() const;
- jack_nframes_t position() const { return _position; }
+ nframes_t overlap_length() const;
- sigc::signal<void,Crossfade*> Invalidated;
- sigc::signal<void> GoingAway;
+ PBD::Signal1<void,boost::shared_ptr<Region> > Invalidated;
+ PBD::Signal1<void,Change> StateChanged;
- bool covers (jack_nframes_t frame) const {
+ bool covers (nframes_t frame) const {
return _position <= frame && frame < _position + _length;
}
- OverlapType coverage (jack_nframes_t start, jack_nframes_t end) const;
-
- UndoAction get_memento() const;
+ OverlapType coverage (nframes_t start, nframes_t end) const;
- static void set_buffer_size (jack_nframes_t);
+ static void set_buffer_size (nframes_t);
bool active () const { return _active; }
void set_active (bool yn);
bool can_follow_overlap() const;
void set_follow_overlap (bool yn);
- Curve& fade_in() { return _fade_in; }
- Curve& fade_out() { return _fade_out; }
+ AutomationList& fade_in() { return _fade_in; }
+ AutomationList& fade_out() { return _fade_out; }
+
+ nframes_t set_xfade_length (nframes_t);
+
+ bool is_dependent() const { return true; }
+ bool depends_on (boost::shared_ptr<Region> other) const {
+ return other == _in || other == _out;
+ }
- jack_nframes_t set_length (jack_nframes_t);
-
- static jack_nframes_t short_xfade_length() { return _short_xfade_length; }
- static void set_short_xfade_length (jack_nframes_t n);
+ static nframes_t short_xfade_length() { return _short_xfade_length; }
+ static void set_short_xfade_length (nframes_t n);
static Change ActiveChanged;
+ static Change FollowOverlapChanged;
private:
friend struct CrossfadeComparePtr;
+ friend class AudioPlaylist;
- static jack_nframes_t _short_xfade_length;
+ static nframes_t _short_xfade_length;
- ARDOUR::AudioRegion* _in;
- ARDOUR::AudioRegion* _out;
+ boost::shared_ptr<ARDOUR::AudioRegion> _in;
+ boost::shared_ptr<ARDOUR::AudioRegion> _out;
bool _active;
bool _in_update;
OverlapType overlap_type;
- jack_nframes_t _length;
- jack_nframes_t _position;
AnchorPoint _anchor_point;
bool _follow_overlap;
bool _fixed;
- Curve _fade_in;
- Curve _fade_out;
+ int32_t layer_relation;
- static Sample* crossfade_buffer_out;
- static Sample* crossfade_buffer_in;
- void initialize (bool savestate=true);
- int compute (ARDOUR::AudioRegion&, ARDOUR::AudioRegion&, CrossfadeModel);
- bool update (bool force);
+ mutable AutomationList _fade_in;
+ mutable AutomationList _fade_out;
- StateManager::State* state_factory (std::string why) const;
- Change restore_state (StateManager::State&);
+ static Sample* crossfade_buffer_out;
+ static Sample* crossfade_buffer_in;
- void member_changed (ARDOUR::Change);
+ void initialize ();
+ int compute (boost::shared_ptr<ARDOUR::AudioRegion>, boost::shared_ptr<ARDOUR::AudioRegion>, CrossfadeModel);
+ bool update ();
+ protected:
+ nframes_t read_raw_internal (Sample*, sframes_t, nframes_t, int) const;
};
} // namespace ARDOUR
-#endif /* __ardour_overlap_h__ */
+#endif /* __ardour_overlap_h__ */
projects / ardour.git / blobdiff