/*
- 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
#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 "pbd/cartesian.h"
-#include <ardour/types.h>
-#include <ardour/automation_control.h>
-
-using std::istream;
-using std::ostream;
+#include "ardour/types.h"
+#include "ardour/automation_control.h"
+#include "ardour/processor.h"
namespace ARDOUR {
class Panner;
class BufferSet;
class AudioBuffer;
+class Speakers;
-class StreamPanner : public sigc::trackable, public PBD::Stateful
+class StreamPanner : public PBD::Stateful
{
public:
- StreamPanner (Panner& p, Parameter param);
+ StreamPanner (Panner& p, Evoral::Parameter param);
~StreamPanner ();
void set_muted (bool yn);
bool muted() const { return _muted; }
- void set_position (float x, bool link_call = false);
- 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; }
+ const PBD::AngularVector& get_position() const { return _angles; }
+ const PBD::AngularVector& get_effective_position() const { return _effective_angles; }
+ void set_position (const PBD::AngularVector&, bool link_call = false);
+ void set_diffusion (double);
- 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, pframes_t);
+ void distribute_automated (AudioBuffer &, BufferSet &, framepos_t, framepos_t, pframes_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, pframes_t nframes) = 0;
+ virtual void do_distribute_automated (AudioBuffer& src, BufferSet& obufs,
+ framepos_t start, framepos_t end, pframes_t nframes,
+ pan_t** buffers) = 0;
boost::shared_ptr<AutomationControl> pan_control() { return _control; }
-
- sigc::signal<void> Changed; /* for position */
- sigc::signal<void> StateChanged; /* for mute */
- int set_state (const XMLNode&);
+ PBD::Signal0<void> Changed; /* for position or diffusion */
+ PBD::Signal0<void> StateChanged; /* for mute, mono */
+
+ 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 (std::istream&, std::string path, uint32_t&) = 0;
- virtual int load (istream&, string path, uint32_t&) = 0;
+ struct PanControllable : public AutomationControl {
+ PanControllable (Session& s, std::string name, StreamPanner* p, Evoral::Parameter param)
+ : AutomationControl (s, param,
+ boost::shared_ptr<AutomationList>(new AutomationList(param)), name)
+ , streampanner (p)
+ { assert (param.type() == PanAutomation); }
+
+ AutomationList* alist() { return (AutomationList*)_list.get(); }
+ StreamPanner* streampanner;
+
+ void set_value (double);
+ double get_value (void) const;
+ double lower () const;
+ };
protected:
friend class Panner;
Panner& parent;
- float x;
- float y;
- float z;
+ void set_mono (bool);
- /* these are for automation. they store the last value
- used by the most recent process() cycle.
- */
-
- float effective_x;
- float effective_y;
- float effective_z;
+ PBD::AngularVector _angles;
+ PBD::AngularVector _effective_angles;
+ double _diffusion;
bool _muted;
+ bool _mono;
+
+ boost::shared_ptr<AutomationControl> _control;
- struct PanControllable : public AutomationControl {
- PanControllable (Session& s, std::string name, StreamPanner& p, 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(); }
- StreamPanner& panner;
-
- void set_value (float);
- float get_value (void) const;
- };
+ XMLNode& get_state ();
- boost::shared_ptr<PanControllable> _control;
-
- void add_state (XMLNode&);
+ /* Update internal parameters based on this.angles */
virtual void update () = 0;
};
class BaseStereoPanner : public StreamPanner
{
public:
- BaseStereoPanner (Panner&, Parameter param);
+ 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 do_distribute (AudioBuffer& src, BufferSet& obufs, gain_t gain_coeff, pframes_t nframes);
+
+ static double azimuth_to_lr_fract (double azi) {
+ /* 180.0 degrees=> left => 0.0 */
+ /* 0.0 degrees => right => 1.0 */
+ /* humans can only distinguish 1 degree of arc between two positions,
+ so force azi back to an integral value before computing
+ */
+
+ return 1.0 - (rint(azi)/180.0);
+ }
+
+ static double lr_fract_to_azimuth (double fract) {
+ /* fract = 0.0 => degrees = 180.0 => left */
+ /* fract = 1.0 => degrees = 0.0 => right */
+
+ /* humans can only distinguish 1 degree of arc between two positions,
+ so force azi back to an integral value after computing
+ */
+
+ return rint (180.0 - (fract * 180.0));
+ }
+
/* old school automation loading */
- int load (istream&, string path, uint32_t&);
+ int load (std::istream&, std::string path, uint32_t&);
protected:
float left;
class EqualPowerStereoPanner : public BaseStereoPanner
{
public:
- EqualPowerStereoPanner (Panner&, Parameter param);
+ 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,
+ framepos_t start, framepos_t end, pframes_t nframes,
+ pan_t** buffers);
void get_current_coefficients (pan_t*) const;
void get_desired_coefficients (pan_t*) const;
- static StreamPanner* factory (Panner&, Parameter param);
- static string name;
+ static StreamPanner* factory (Panner&, Evoral::Parameter param, Speakers&);
+ 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
+/** 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 Automatable
{
- public:
- Multi2dPanner (Panner& parent, Parameter);
- ~Multi2dPanner ();
-
- 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);
-
- static StreamPanner* factory (Panner&, Parameter);
- static string name;
+public:
+ struct Output {
+ PBD::AngularVector position;
+ pan_t current_pan;
+ pan_t desired_pan;
+
+ Output (const PBD::AngularVector& a)
+ : position (a), current_pan (0), desired_pan (0) {}
- XMLNode& state (bool full_state);
- XMLNode& get_state (void);
- int set_state (const XMLNode&);
+ };
- /* old school automation loading */
+ Panner (std::string name, Session&);
+ virtual ~Panner ();
- int load (istream&, string path, uint32_t&);
+ void clear_panners ();
+ bool empty() const { return _streampanners.empty(); }
- private:
- void update ();
-};
+ void set_automation_state (AutoState);
+ AutoState automation_state() const;
+ void set_automation_style (AutoStyle);
+ AutoStyle automation_style() const;
+ bool touching() const;
-class Panner : public std::vector<StreamPanner*>, public PBD::Stateful, public sigc::trackable
-{
- 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) {}
-
- };
+ std::string describe_parameter (Evoral::Parameter param);
- Panner (string name, Session&);
- virtual ~Panner ();
+ 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, framepos_t start_frame, framepos_t end_frames, pframes_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
}
+ static bool equivalent (const PBD::AngularVector& a, const PBD::AngularVector& b) {
+ /* XXX azimuth only, at present */
+ return fabs (a.azi - b.azi) < 1.0;
+ }
void move_output (uint32_t, float x, float y);
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; /* panner and/or outputs count 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);
+
+ void set_position (const PBD::AngularVector&, StreamPanner& orig);
/* old school automation */
int load ();
+ boost::shared_ptr<AutomationControl> pan_control (int id, uint32_t chan=0) {
+ return automation_control (Evoral::Parameter (PanAutomation, chan, id));
+ }
+
+ boost::shared_ptr<const AutomationControl> pan_control (int id, uint32_t chan=0) const {
+ return automation_control (Evoral::Parameter (PanAutomation, chan, id));
+ }
+
+ boost::shared_ptr<AutomationControl> direction_control () {
+ return automation_control (Evoral::Parameter (PanAutomation, 0, 100));
+ }
+
+ boost::shared_ptr<AutomationControl> width_control () {
+ return automation_control (Evoral::Parameter (PanAutomation, 0, 200));
+ }
+
+ void set_stereo_position (double);
+ void set_stereo_width (double);
+ bool set_stereo_pan (double pos, double width);
+
+ static std::string value_as_string (double);
+
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, pframes_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;
+ void setup_speakers (uint32_t nouts);
+ void setup_meta_controls ();
+
/* old school automation handling */
std::string automation_path;
- void set_name (std::string);
};
} // namespace ARDOUR
projects / ardour.git / blobdiff