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Diffstat (limited to 'libs/ardour/ardour/io.h')
| -rw-r--r-- | libs/ardour/ardour/io.h | 391 |
1 files changed, 391 insertions, 0 deletions
diff --git a/libs/ardour/ardour/io.h b/libs/ardour/ardour/io.h new file mode 100644 index 0000000000..83b6378dae --- /dev/null +++ b/libs/ardour/ardour/io.h @@ -0,0 +1,391 @@ +/* + 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 + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +*/ + +#ifndef __ardour_io_h__ +#define __ardour_io_h__ + +#include <string> +#include <vector> +#include <cmath> +#include <sigc++/signal.h> +#include <jack/jack.h> + +#include <glibmm/thread.h> + +#include <pbd/fastlog.h> +#include <pbd/undo.h> +#include <pbd/statefuldestructible.h> +#include <pbd/controllable.h> + +#include <ardour/ardour.h> +#include <ardour/automatable.h> +#include <ardour/utils.h> +#include <ardour/curve.h> +#include <ardour/types.h> +#include <ardour/data_type.h> +#include <ardour/port_set.h> +#include <ardour/chan_count.h> +#include <ardour/latent.h> +#include <ardour/automation_control.h> +#include <ardour/user_bundle.h> + +using std::string; +using std::vector; + +class XMLNode; + +namespace ARDOUR { + +class Session; +class AudioEngine; +class Bundle; +class AutoBundle; +class Panner; +class PeakMeter; +class Port; +class AudioPort; +class MidiPort; +class BufferSet; + + +/** A collection of input and output ports with connections. + * + * An IO can contain ports of varying types, making routes/inserts/etc with + * varied combinations of types (eg MIDI and audio) possible. + */ + +class IO : public Automatable, public Latent +{ + public: + static const string state_node_name; + + IO (Session&, const string& name, + int input_min = -1, int input_max = -1, + int output_min = -1, int output_max = -1, + DataType default_type = DataType::AUDIO, + bool public_ports = true); + + IO (Session&, const XMLNode&, DataType default_type = DataType::AUDIO); + + virtual ~IO(); + + ChanCount input_minimum() const { return _input_minimum; } + ChanCount input_maximum() const { return _input_maximum; } + ChanCount output_minimum() const { return _output_minimum; } + ChanCount output_maximum() const { return _output_maximum; } + + void set_input_minimum (ChanCount n); + void set_input_maximum (ChanCount n); + void set_output_minimum (ChanCount n); + void set_output_maximum (ChanCount n); + + bool active() const { return _active; } + void set_active (bool yn); + + DataType default_type() const { return _default_type; } + void set_default_type(DataType t) { _default_type = t; } + + bool set_name (const string& str); + + virtual void silence (nframes_t, nframes_t offset); + + void collect_input (BufferSet& bufs, nframes_t nframes, nframes_t offset); + void deliver_output (BufferSet& bufs, nframes_t start_frame, nframes_t end_frame, + nframes_t nframes, nframes_t offset); + void just_meter_input (nframes_t start_frame, nframes_t end_frame, + nframes_t nframes, nframes_t offset); + + gain_t gain () const { return _desired_gain; } + virtual gain_t effective_gain () const; + + void set_denormal_protection (bool yn, void *src); + bool denormal_protection() const { return _denormal_protection; } + + void set_phase_invert (bool yn, void *src); + bool phase_invert() const { return _phase_invert; } + + Panner& panner() { return *_panner; } + PeakMeter& peak_meter() { return *_meter; } + const Panner& panner() const { return *_panner; } + + int ensure_io (ChanCount in, ChanCount out, bool clear, void *src); + + int connect_input_ports_to_bundle (boost::shared_ptr<Bundle>, void *src); + int connect_output_ports_to_bundle (boost::shared_ptr<Bundle>, void *src); + + std::vector<boost::shared_ptr<Bundle> > bundles_connected_to_inputs (); + std::vector<boost::shared_ptr<Bundle> > bundles_connected_to_outputs (); + + boost::shared_ptr<AutoBundle> bundle_for_inputs () { return _bundle_for_inputs; } + boost::shared_ptr<AutoBundle> bundle_for_outputs () { return _bundle_for_outputs; } + + int add_input_port (string source, void *src, DataType type = DataType::NIL); + int add_output_port (string destination, void *src, DataType type = DataType::NIL); + + int remove_input_port (Port *, void *src); + int remove_output_port (Port *, void *src); + + int set_input (Port *, void *src); + + int connect_input (Port *our_port, string other_port, void *src); + int connect_output (Port *our_port, string other_port, void *src); + + int disconnect_input (Port *our_port, string other_port, void *src); + int disconnect_output (Port *our_port, string other_port, void *src); + + int disconnect_inputs (void *src); + int disconnect_outputs (void *src); + + nframes_t signal_latency() const { return _own_latency; } + nframes_t output_latency() const; + nframes_t input_latency() const; + void set_port_latency (nframes_t); + + void update_port_total_latencies (); + + const PortSet& inputs() const { return _inputs; } + const PortSet& outputs() const { return _outputs; } + + Port *output (uint32_t n) const { + if (n < _outputs.num_ports()) { + return _outputs.port(n); + } else { + return 0; + } + } + + Port *input (uint32_t n) const { + if (n < _inputs.num_ports()) { + return _inputs.port(n); + } else { + return 0; + } + } + + AudioPort* audio_input(uint32_t n) const; + AudioPort* audio_output(uint32_t n) const; + MidiPort* midi_input(uint32_t n) const; + MidiPort* midi_output(uint32_t n) const; + + const ChanCount& n_inputs () const { return _inputs.count(); } + const ChanCount& n_outputs () const { return _outputs.count(); } + + void attach_buffers(ChanCount ignored); + + sigc::signal<void> active_changed; + + sigc::signal<void,IOChange,void*> input_changed; + sigc::signal<void,IOChange,void*> output_changed; + + virtual XMLNode& state (bool full); + XMLNode& get_state (void); + int set_state (const XMLNode&); + + static int disable_connecting (void); + + static int enable_connecting (void); + + static int disable_ports (void); + + static int enable_ports (void); + + static int disable_panners (void); + + static int reset_panners (void); + + static sigc::signal<int> PortsLegal; + static sigc::signal<int> PannersLegal; + static sigc::signal<int> ConnectingLegal; + /// raised when the number of input or output ports changes + static sigc::signal<void,ChanCount> PortCountChanged; + static sigc::signal<int> PortsCreated; + + static void update_meters(); + + private: + + static sigc::signal<void> Meter; + static Glib::StaticMutex m_meter_signal_lock; + sigc::connection m_meter_connection; + + public: + + /* automation */ + + struct GainControl : public AutomationControl { + GainControl (std::string name, IO& i, boost::shared_ptr<AutomationList> al) + : AutomationControl (i._session, al, name) + , _io (i) + {} + + void set_value (float val); + float get_value (void) const; + + IO& _io; + }; + + boost::shared_ptr<GainControl> gain_control() { + return _gain_control; + } + boost::shared_ptr<const GainControl> gain_control() const { + return _gain_control; + } + + void clear_automation (); + + void set_parameter_automation_state (Parameter, AutoState); + + virtual void transport_stopped (nframes_t now); + virtual void automation_snapshot (nframes_t now, bool force); + + void start_pan_touch (uint32_t which); + void end_pan_touch (uint32_t which); + + void defer_pan_reset (); + void allow_pan_reset (); + + /* the session calls this for master outs before + anyone else. controls outs too, at some point. + */ + + XMLNode *pending_state_node; + int ports_became_legal (); + + private: + mutable Glib::Mutex io_lock; + + protected: + Panner* _panner; + BufferSet* _output_buffers; //< Set directly to output port buffers + bool _active; + gain_t _gain; + gain_t _effective_gain; + gain_t _desired_gain; + Glib::Mutex declick_lock; + PortSet _outputs; + PortSet _inputs; + PeakMeter* _meter; + bool no_panner_reset; + bool _phase_invert; + bool _denormal_protection; + XMLNode* deferred_state; + DataType _default_type; + bool _public_ports; + + virtual void set_deferred_state() {} + + void reset_panner (); + + virtual uint32_t pans_required() const + { return _inputs.count().n_audio(); } + + boost::shared_ptr<GainControl> _gain_control; + + virtual void set_gain (gain_t g, void *src); + void inc_gain (gain_t delta, void *src); + + bool apply_gain_automation; + + virtual int load_automation (std::string path); + + /* AudioTrack::deprecated_use_diskstream_connections() needs these */ + + int set_inputs (const string& str); + int set_outputs (const string& str); + + static bool connecting_legal; + static bool ports_legal; + + BufferSet& output_buffers() { return *_output_buffers; } + + private: + + friend class Send; + + static bool panners_legal; + + int connecting_became_legal (); + int panners_became_legal (); + sigc::connection connection_legal_c; + sigc::connection port_legal_c; + sigc::connection panner_legal_c; + + ChanCount _input_minimum; ///< minimum number of input channels (0 for no minimum) + ChanCount _input_maximum; ///< maximum number of input channels (ChanCount::INFINITE for no maximum) + ChanCount _output_minimum; ///< minimum number of output channels (0 for no minimum) + ChanCount _output_maximum; ///< maximum number of output channels (ChanCount::INFINITE for no maximum) + + boost::shared_ptr<AutoBundle> _bundle_for_inputs; ///< a bundle representing our inputs + boost::shared_ptr<AutoBundle> _bundle_for_outputs; ///< a bundle representing our outputs + + struct UserBundleInfo { + UserBundleInfo (IO*, boost::shared_ptr<UserBundle> b); + + boost::shared_ptr<UserBundle> bundle; + sigc::connection configuration_will_change; + sigc::connection configuration_has_changed; + sigc::connection ports_will_change; + sigc::connection ports_have_changed; + }; + + std::vector<UserBundleInfo> _bundles_connected_to_outputs; ///< user bundles connected to our outputs + std::vector<UserBundleInfo> _bundles_connected_to_inputs; ///< user bundles connected to our inputs + + static int parse_io_string (const string&, vector<string>& chns); + + static int parse_gain_string (const string&, vector<string>& chns); + + int set_sources (vector<string>&, void *src, bool add); + int set_destinations (vector<string>&, void *src, bool add); + + int ensure_inputs (ChanCount, bool clear, bool lockit, void *src); + int ensure_outputs (ChanCount, bool clear, bool lockit, void *src); + + void check_bundles_connected_to_inputs (); + void check_bundles_connected_to_outputs (); + void check_bundles (std::vector<UserBundleInfo>&, const PortSet&); + + void bundle_configuration_will_change (); + void bundle_configuration_has_changed (); + void bundle_ports_will_change (int); + void bundle_ports_have_changed (int); + + int create_ports (const XMLNode&); + int make_connections (const XMLNode&); + + void setup_peak_meters (); + void meter (); + + bool ensure_inputs_locked (ChanCount, bool clear, void *src); + bool ensure_outputs_locked (ChanCount, bool clear, void *src); + + std::string build_legal_port_name (DataType type, bool for_input); + int32_t find_input_port_hole (const char* base); + int32_t find_output_port_hole (const char* base); + + void create_bundles_for_inputs_and_outputs (); + void setup_bundles_for_inputs_and_outputs (); + + void maybe_add_input_bundle_to_list (boost::shared_ptr<Bundle>, std::vector<boost::shared_ptr<Bundle> >*); + void maybe_add_output_bundle_to_list (boost::shared_ptr<Bundle>, std::vector<boost::shared_ptr<Bundle> >*); +}; + +} // namespace ARDOUR + +#endif /*__ardour_io_h__ */ |