/*
- Copyright (C) 2004 Paul Davis
+ Copyright (C) 2004 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_panner_h__
#define __ardour_panner_h__
#include <cmath>
+#include <cassert>
#include <vector>
#include <string>
#include <iostream>
-#include <sigc++/signal.h>
-#include <pbd/stateful.h>
-#include <pbd/controllable.h>
+#include "pbd/stateful.h"
+#include "pbd/controllable.h"
-#include <ardour/types.h>
-#include <ardour/curve.h>
-
-using std::istream;
-using std::ostream;
+#include "ardour/types.h"
+#include "ardour/automation_control.h"
+#include "ardour/processor.h"
namespace ARDOUR {
class BufferSet;
class AudioBuffer;
-class StreamPanner : public sigc::trackable, public Stateful
+class StreamPanner : public PBD::Stateful
{
public:
- StreamPanner (Panner& p);
+ StreamPanner (Panner& p, Evoral::Parameter param);
~StreamPanner ();
void set_muted (bool yn);
void set_position (float x, float y, bool link_call = false);
void set_position (float x, float y, float z, bool link_call = false);
- void get_position (float& xpos) const { xpos = x; }
- void get_position (float& xpos, float& ypos) const { xpos = x; ypos = y; }
- void get_position (float& xpos, float& ypos, float& zpos) const { xpos = x; ypos = y; zpos = z; }
+ void get_position (float& xpos) const { xpos = _x; }
+ void get_position (float& xpos, float& ypos) const { xpos = _x; ypos = _y; }
+ void get_position (float& xpos, float& ypos, float& zpos) const { xpos = _x; ypos = _y; zpos = _z; }
void get_effective_position (float& xpos) const { xpos = effective_x; }
void get_effective_position (float& xpos, float& ypos) const { xpos = effective_x; ypos = effective_y; }
void get_effective_position (float& xpos, float& ypos, float& zpos) const { xpos = effective_x; ypos = effective_y; zpos = effective_z; }
+ void distribute (AudioBuffer &, BufferSet &, gain_t, nframes_t);
+ void distribute_automated (AudioBuffer &, BufferSet &, nframes_t, nframes_t, nframes_t, pan_t **);
+
/* the basic StreamPanner API */
- virtual void distribute (AudioBuffer& src, BufferSet& obufs, gain_t gain_coeff, nframes_t nframes) = 0;
- virtual void distribute_automated (AudioBuffer& src, BufferSet& obufs,
- nframes_t start, nframes_t end, nframes_t nframes, pan_t** buffers) = 0;
+ /**
+ * Pan some input samples to a number of output buffers.
+ *
+ * @param src Input buffer.
+ * @param obufs Output buffers (one per panner output).
+ * @param gain_coeff Gain coefficient to apply to output samples.
+ * @param nframes Number of frames in the input.
+ */
+ virtual void do_distribute (AudioBuffer& src, BufferSet& obufs, gain_t gain_coeff, nframes_t nframes) = 0;
+ virtual void do_distribute_automated (AudioBuffer& src, BufferSet& obufs,
+ nframes_t start, nframes_t end, nframes_t nframes, pan_t** buffers) = 0;
- /* automation */
+ boost::shared_ptr<AutomationControl> pan_control() { return _control; }
- virtual void snapshot (nframes_t now) = 0;
- virtual void transport_stopped (nframes_t frame) = 0;
- virtual void set_automation_state (AutoState) = 0;
- virtual void set_automation_style (AutoStyle) = 0;
-
- PBD::Controllable& control() { return _control; }
-
- /* XXX this is wrong. for multi-dimensional panners, there
- must surely be more than 1 automation curve.
- */
+ PBD::Signal0<void> Changed; /* for position */
+ PBD::Signal0<void> StateChanged; /* for mute, mono */
- virtual Curve& automation() = 0;
-
- sigc::signal<void> Changed; /* for position */
- sigc::signal<void> StateChanged; /* for mute */
-
- int set_state (const XMLNode&);
+ int set_state (const XMLNode&, int version);
virtual XMLNode& state (bool full_state) = 0;
-
+
Panner & get_parent() { return parent; }
-
- /* old school automation loading */
- virtual int load (istream&, string path, uint32_t&) = 0;
+ /* old school automation loading */
+ virtual int load (std::istream&, std::string path, uint32_t&) = 0;
protected:
friend class Panner;
Panner& parent;
- float x;
- float y;
- float z;
+ void set_mono (bool);
+ float _x;
+ float _y;
+ float _z;
+
/* these are for automation. they store the last value
used by the most recent process() cycle.
*/
float effective_y;
float effective_z;
- bool _muted;
+ bool _muted;
+ bool _mono;
- struct PanControllable : public PBD::Controllable {
- PanControllable (std::string name, StreamPanner& p) : Controllable (name), panner (p) {}
-
- StreamPanner& panner;
-
- void set_value (float);
- float get_value (void) const;
- bool can_send_feedback() const;
- };
-
- PanControllable _control;
+ boost::shared_ptr<AutomationControl> _control;
void add_state (XMLNode&);
+
+ /* Update internal parameters based on _x, _y and _z */
virtual void update () = 0;
};
class BaseStereoPanner : public StreamPanner
{
public:
- BaseStereoPanner (Panner&);
+ BaseStereoPanner (Panner&, Evoral::Parameter param);
~BaseStereoPanner ();
/* this class just leaves the pan law itself to be defined
- by the update(), distribute_automated()
+ by the update(), do_distribute_automated()
methods. derived classes also need a factory method
and a type name. See EqualPowerStereoPanner as an example.
*/
- void distribute (AudioBuffer& src, BufferSet& obufs, gain_t gain_coeff, nframes_t nframes);
-
- void snapshot (nframes_t now);
- void transport_stopped (nframes_t frame);
- void set_automation_state (AutoState);
- void set_automation_style (AutoStyle);
-
- Curve& automation() { return _automation; }
+ void do_distribute (AudioBuffer& src, BufferSet& obufs, gain_t gain_coeff, nframes_t nframes);
/* old school automation loading */
- int load (istream&, string path, uint32_t&);
+ int load (std::istream&, std::string path, uint32_t&);
protected:
float left;
float desired_right;
float left_interp;
float right_interp;
-
- Curve _automation;
};
class EqualPowerStereoPanner : public BaseStereoPanner
{
public:
- EqualPowerStereoPanner (Panner&);
+ EqualPowerStereoPanner (Panner&, Evoral::Parameter param);
~EqualPowerStereoPanner ();
- void distribute_automated (AudioBuffer& src, BufferSet& obufs,
- nframes_t start, nframes_t end, nframes_t nframes, pan_t** buffers);
+ void do_distribute_automated (AudioBuffer& src, BufferSet& obufs,
+ nframes_t start, nframes_t end, nframes_t nframes, pan_t** buffers);
void get_current_coefficients (pan_t*) const;
void get_desired_coefficients (pan_t*) const;
- static StreamPanner* factory (Panner&);
- static string name;
+ static StreamPanner* factory (Panner&, Evoral::Parameter param);
+ static std::string name;
XMLNode& state (bool full_state);
XMLNode& get_state (void);
- int set_state (const XMLNode&);
+ int set_state (const XMLNode&, int version);
private:
void update ();
class Multi2dPanner : public StreamPanner
{
public:
- Multi2dPanner (Panner& parent);
+ Multi2dPanner (Panner& parent, Evoral::Parameter);
~Multi2dPanner ();
- void snapshot (nframes_t now);
- void transport_stopped (nframes_t frame);
- void set_automation_state (AutoState);
- void set_automation_style (AutoStyle);
-
- /* XXX this is wrong. for multi-dimensional panners, there
- must surely be more than 1 automation curve.
- */
-
- Curve& automation() { return _automation; }
-
- void distribute (AudioBuffer& src, BufferSet& obufs, gain_t gain_coeff, nframes_t nframes);
- void distribute_automated (AudioBuffer& src, BufferSet& obufs,
- nframes_t start, nframes_t end, nframes_t nframes, pan_t** buffers);
+ void do_distribute (AudioBuffer& src, BufferSet& obufs, gain_t gain_coeff, nframes_t nframes);
+ void do_distribute_automated (AudioBuffer& src, BufferSet& obufs,
+ nframes_t start, nframes_t end, nframes_t nframes, pan_t** buffers);
- static StreamPanner* factory (Panner&);
- static string name;
+ static StreamPanner* factory (Panner&, Evoral::Parameter);
+ static std::string name;
- XMLNode& state (bool full_state);
+ XMLNode& state (bool full_state);
XMLNode& get_state (void);
- int set_state (const XMLNode&);
+ int set_state (const XMLNode&, int version);
/* old school automation loading */
- int load (istream&, string path, uint32_t&);
+ int load (std::istream&, std::string path, uint32_t&);
private:
- Curve _automation;
void update ();
};
-class Panner : public std::vector<StreamPanner*>, public Stateful, public sigc::trackable
+
+/** Class to pan from some number of inputs to some number of outputs.
+ * This class has a number of StreamPanners, one for each input.
+ */
+class Panner : public SessionObject, public AutomatableControls
{
- public:
+public:
struct Output {
- float x;
- float y;
- pan_t current_pan;
- pan_t desired_pan;
-
- Output (float xp, float yp)
- : x (xp), y (yp), current_pan (0.0f), desired_pan (0.f) {}
-
+ float x;
+ float y;
+ pan_t current_pan;
+ pan_t desired_pan;
+
+ Output (float xp, float yp)
+ : x (xp), y (yp), current_pan (0), desired_pan (0) {}
+
};
- Panner (string name, Session&);
+ Panner (std::string name, Session&);
virtual ~Panner ();
+ void clear_panners ();
+ bool empty() const { return _streampanners.empty(); }
+
+ void set_automation_state (AutoState);
+ AutoState automation_state() const;
+ void set_automation_style (AutoStyle);
+ AutoStyle automation_style() const;
+ bool touching() const;
+
+ bool can_support_io_configuration (const ChanCount& /*in*/, ChanCount& /*out*/) const { return true; };
+
/// The fundamental Panner function
- void distribute(BufferSet& src, BufferSet& dest, nframes_t start_frame, nframes_t end_frames, nframes_t nframes, nframes_t offset);
+ void run (BufferSet& src, BufferSet& dest, sframes_t start_frame, sframes_t end_frames, nframes_t nframes);
bool bypassed() const { return _bypassed; }
void set_bypassed (bool yn);
+ bool mono () const { return _mono; }
+ void set_mono (bool);
StreamPanner* add ();
void remove (uint32_t which);
- void clear ();
void reset (uint32_t noutputs, uint32_t npans);
-
- void snapshot (nframes_t now);
- void transport_stopped (nframes_t frame);
-
- void clear_automation ();
-
- void set_automation_state (AutoState);
- AutoState automation_state() const;
- void set_automation_style (AutoStyle);
- AutoStyle automation_style() const;
- bool touching() const;
+ void reset_streampanner (uint32_t which_panner);
+ void reset_to_default ();
XMLNode& get_state (void);
XMLNode& state (bool full);
- int set_state (const XMLNode&);
+ int set_state (const XMLNode&, int version);
- sigc::signal<void> Changed;
-
static bool equivalent (pan_t a, pan_t b) {
return fabsf (a - b) < 0.002; // about 1 degree of arc for a stereo panner
}
uint32_t nouts() const { return outputs.size(); }
Output& output (uint32_t n) { return outputs[n]; }
- std::vector<Output> outputs;
- Session& session() const { return _session; }
-
enum LinkDirection {
SameDirection,
OppositeDirection
LinkDirection link_direction() const { return _link_direction; }
void set_link_direction (LinkDirection);
-
+
bool linked() const { return _linked; }
void set_linked (bool yn);
- sigc::signal<void> LinkStateChanged;
- sigc::signal<void> StateChanged; /* for bypass */
+ StreamPanner &streampanner( uint32_t n ) const { assert( n < _streampanners.size() ); return *_streampanners[n]; }
+ uint32_t npanners() const { return _streampanners.size(); }
+
+ PBD::Signal0<void> Changed;
+ PBD::Signal0<void> LinkStateChanged;
+ PBD::Signal0<void> StateChanged; /* for bypass */
/* only StreamPanner should call these */
-
+
void set_position (float x, StreamPanner& orig);
void set_position (float x, float y, StreamPanner& orig);
void set_position (float x, float y, float z, StreamPanner& orig);
int load ();
+ struct PanControllable : public AutomationControl {
+ PanControllable (Session& s, std::string name, Panner& p, Evoral::Parameter param)
+ : AutomationControl (s, param,
+ boost::shared_ptr<AutomationList>(new AutomationList(param)), name)
+ , panner (p)
+ { assert(param.type() != NullAutomation); }
+
+ AutomationList* alist() { return (AutomationList*)_list.get(); }
+ Panner& panner;
+
+ void set_value (float);
+ float get_value (void) const;
+ };
+
+ boost::shared_ptr<AutomationControl> pan_control (int id, int chan=0) {
+ return automation_control (Evoral::Parameter (PanAutomation, chan, id));
+ }
+
+ boost::shared_ptr<const AutomationControl> pan_control (int id, int chan=0) const {
+ return automation_control (Evoral::Parameter (PanAutomation, chan, id));
+ }
+
private:
- void distribute_no_automation(BufferSet& src, BufferSet& dest, nframes_t nframes, nframes_t offset, gain_t gain_coeff);
+ /* disallow copy construction */
+ Panner (Panner const &);
- Session& _session;
+ void distribute_no_automation(BufferSet& src, BufferSet& dest, nframes_t nframes, gain_t gain_coeff);
+ std::vector<StreamPanner*> _streampanners; ///< one StreamPanner per input
+ std::vector<Output> outputs;
uint32_t current_outs;
bool _linked;
bool _bypassed;
+ bool _mono;
LinkDirection _link_direction;
static float current_automation_version_number;
/* old school automation handling */
std::string automation_path;
- void set_name (std::string);
};
} // namespace ARDOUR
projects / ardour.git / blobdiff