libardour added.

git-svn-id: svn://localhost/trunk/ardour2@17 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 359 insertions, 0 deletions

diff --git a/libs/ardour/ardour/route.h b/libs/ardour/ardour/route.h
new file mode 100644
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+++ b/libs/ardour/ardour/route.h
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+/*
+    Copyright (C) 2000-2002 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.
+
+    $Id$
+*/
+
+#ifndef __ardour_route_h__
+#define __ardour_route_h__
+
+#include <cmath>
+#include <list>
+#include <set>
+#include <map>
+#include <string>
+
+#include <pthread.h>
+
+#include <pbd/atomic.h>
+#include <pbd/fastlog.h>
+#include <pbd/lockmonitor.h>
+#include <pbd/xml++.h>
+#include <pbd/undo.h>
+#include <midi++/controllable.h>
+
+#include <ardour/ardour.h>
+#include <ardour/stateful.h>
+#include <ardour/io.h>
+#include <ardour/session.h>
+#include <ardour/redirect.h>
+
+namespace ARDOUR {
+
+class Insert;
+class Send;
+class RouteGroup;
+
+enum mute_type {
+    PRE_FADER =    0x1,
+    POST_FADER =   0x2,
+    CONTROL_OUTS = 0x4,
+    MAIN_OUTS =    0x8
+};
+
+class Route : public IO
+{
+  private:
+	typedef list<Redirect *> RedirectList;
+
+  public:
+
+	enum Flag {
+		Hidden = 0x1,
+		MasterOut = 0x2,
+		ControlOut = 0x4,
+	};
+
+
+	Route (Session&, std::string name, int input_min, int input_max, int output_min, int output_max, Flag flags = Flag(0));
+	Route (Session&, const XMLNode&);
+	virtual ~Route();
+
+	std::string comment() { return _comment; }
+	void set_comment (std::string str, void *src);
+
+	long order_key(std::string name) const;
+	void set_order_key (std::string name, long n);
+
+	bool hidden() const { return _flags & Hidden; }
+	bool master() const { return _flags & MasterOut; }
+	bool control() const { return _flags & ControlOut; }
+
+	/* these are the core of the API of a Route. see the protected sections as well */
+
+
+	virtual int  roll (jack_nframes_t nframes, jack_nframes_t start_frame, jack_nframes_t end_frame, 
+			   jack_nframes_t offset, int declick, bool can_record, bool rec_monitors_input);
+
+	virtual int  no_roll (jack_nframes_t nframes, jack_nframes_t start_frame, jack_nframes_t end_frame, 
+			      jack_nframes_t offset, bool state_changing, bool can_record, bool rec_monitors_input);
+
+	virtual int  silent_roll (jack_nframes_t nframes, jack_nframes_t start_frame, jack_nframes_t end_frame, 
+				  jack_nframes_t offset, bool can_record, bool rec_monitors_input);
+	virtual void toggle_monitor_input ();
+	virtual bool can_record() const { return false; }
+	virtual void set_record_enable (bool yn, void *src) {}
+	virtual bool record_enabled() const { return false; }
+	virtual void transport_stopped (bool abort, bool did_locate, bool flush_redirects);
+	virtual void set_pending_declick (int);
+
+	/* end of vfunc-based API */
+
+	/* override IO::set_gain() to provide group control */
+
+	void set_gain (gain_t val, void *src);
+	void inc_gain (gain_t delta, void *src);
+
+	bool active() const { return _active; }
+	void set_active (bool yn);
+
+	void set_solo (bool yn, void *src);
+	bool soloed() const { return _soloed; }
+
+	void set_solo_safe (bool yn, void *src);
+	bool solo_safe() const { return _solo_safe; }
+
+	void set_mute (bool yn, void *src);
+	bool muted() const { return _muted; }
+
+	void set_mute_config (mute_type, bool, void *src);
+	bool get_mute_config (mute_type);
+
+	void set_phase_invert (bool yn, void *src);
+	bool phase_invert() const { return _phase_invert; }
+	
+	void       set_edit_group (RouteGroup *, void *);
+	RouteGroup *edit_group () { return _edit_group; }
+
+	void       set_mix_group (RouteGroup *, void *);
+	RouteGroup *mix_group () { return _mix_group; }
+
+	virtual void  set_meter_point (MeterPoint, void *src);
+	MeterPoint  meter_point() const { return _meter_point; }
+
+	/* Redirects */
+
+	void flush_redirects ();
+
+	template<class T> void foreach_redirect (T *obj, void (T::*func)(Redirect *)) {
+		LockMonitor lm (redirect_lock, __LINE__, __FILE__);
+		for (RedirectList::iterator i = _redirects.begin(); i != _redirects.end(); ++i) {
+			(obj->*func) (*i);
+		}
+	}
+
+	Redirect *nth_redirect (uint32_t n) {
+		LockMonitor lm (redirect_lock, __LINE__, __FILE__);
+		RedirectList::iterator i;
+		for (i = _redirects.begin(); i != _redirects.end() && n; ++i, --n);
+		if (i == _redirects.end()) {
+			return 0;
+		} else {
+			return *i;
+		}
+	}
+	
+	uint32_t max_redirect_outs () const { return redirect_max_outs; }
+		
+	int add_redirect (Redirect *, void *src, uint32_t* err_streams = 0);
+	int add_redirects (const RedirectList&, void *src, uint32_t* err_streams = 0);
+	int remove_redirect (Redirect *, void *src, uint32_t* err_streams = 0);
+	int copy_redirects (const Route&, Placement, uint32_t* err_streams = 0);
+	int sort_redirects (uint32_t* err_streams = 0);
+
+	void clear_redirects (void *src);
+	void all_redirects_flip();
+	void all_redirects_active (bool state);
+
+	virtual jack_nframes_t update_total_latency();
+	jack_nframes_t signal_latency() const { return _own_latency; }
+	virtual void set_latency_delay (jack_nframes_t);
+
+	sigc::signal<void,void*> solo_changed;
+	sigc::signal<void,void*> solo_safe_changed;
+	sigc::signal<void,void*> comment_changed;
+	sigc::signal<void,void*> mute_changed;
+	sigc::signal<void,void*> pre_fader_changed;
+	sigc::signal<void,void*> post_fader_changed;
+	sigc::signal<void,void*> control_outs_changed;
+	sigc::signal<void,void*> main_outs_changed;
+	sigc::signal<void,void*> redirects_changed;
+	sigc::signal<void,void*> record_enable_changed;
+	sigc::signal<void,void*> edit_group_changed;
+	sigc::signal<void,void*> mix_group_changed;
+	sigc::signal<void>       active_changed;
+	sigc::signal<void,void*> meter_change;
+
+	sigc::signal<void> GoingAway;
+
+	/* gui's call this for their own purposes. */
+
+	sigc::signal<void,std::string,void*> gui_changed;
+
+	/* stateful */
+
+	XMLNode& get_state();
+	int set_state(const XMLNode& node);
+	XMLNode& get_template();
+
+	sigc::signal<void,void*> SelectedChanged;
+
+	/* undo */
+
+	UndoAction get_memento() const;
+	void set_state (state_id_t);
+
+	int set_control_outs (const vector<std::string>& ports);
+	IO* control_outs() { return _control_outs; }
+
+	bool feeds (Route *);
+	set<Route *> fed_by;
+
+	struct MIDIToggleControl : public MIDI::Controllable {
+		enum ToggleType {
+			MuteControl = 0,
+			SoloControl
+		};
+		
+		MIDIToggleControl (Route&, ToggleType, MIDI::Port *);
+		void set_value (float);
+		void send_feedback (bool);
+ 	        MIDI::byte* write_feedback (MIDI::byte* buf, int32_t& bufsize, bool val, bool force = false);
+
+		Route& route;
+		ToggleType type;
+		bool setting;
+		bool last_written;
+	};
+
+	MIDI::Controllable& midi_solo_control() {
+		return _midi_solo_control;
+	}
+	MIDI::Controllable& midi_mute_control() {
+		return _midi_mute_control;
+	}
+	
+	virtual void reset_midi_control (MIDI::Port*, bool);
+	virtual void send_all_midi_feedback ();
+	virtual MIDI::byte* write_midi_feedback (MIDI::byte*, int32_t& bufsize);
+
+	void automation_snapshot (jack_nframes_t now);
+
+	void protect_automation ();
+	
+  protected:
+	friend class Session;
+
+	void set_solo_mute (bool yn);
+	void set_block_size (jack_nframes_t nframes);
+	bool has_external_redirects() const;
+	void curve_reallocate ();
+
+  protected:
+	unsigned char _flags;
+
+	/* tight cache-line access here is more important than sheer speed of
+	   access.
+	*/
+
+	bool                     _muted : 1;
+	bool                     _soloed : 1;
+	bool                     _solo_muted : 1;
+	bool                     _solo_safe : 1;
+	bool                     _phase_invert : 1;
+	bool                     _recordable : 1;
+	bool                     _active : 1;
+	bool                     _mute_affects_pre_fader : 1;
+	bool                     _mute_affects_post_fader : 1;
+	bool                     _mute_affects_control_outs : 1;
+	bool                     _mute_affects_main_outs : 1;
+	bool                     _silent : 1;
+	bool                     _declickable : 1;
+	int                      _pending_declick;
+	
+	MeterPoint               _meter_point;
+
+	gain_t                    solo_gain;
+	gain_t                    mute_gain;
+	gain_t                    desired_solo_gain;
+	gain_t                    desired_mute_gain;
+
+	jack_nframes_t            check_initial_delay (jack_nframes_t, jack_nframes_t&, jack_nframes_t&);
+
+	jack_nframes_t           _initial_delay;
+	jack_nframes_t           _roll_delay;
+	jack_nframes_t           _own_latency;
+	RedirectList             _redirects;
+	PBD::NonBlockingLock      redirect_lock;
+	IO                      *_control_outs;
+	PBD::NonBlockingLock      control_outs_lock;
+	RouteGroup              *_edit_group;
+	RouteGroup              *_mix_group;
+	std::string              _comment;
+	bool                     _have_internal_generator;
+
+	MIDIToggleControl _midi_solo_control;
+	MIDIToggleControl _midi_mute_control;
+	
+	void passthru (jack_nframes_t start_frame, jack_nframes_t end_frame, 
+		       jack_nframes_t nframes, jack_nframes_t offset, int declick, bool meter_inputs);
+
+	void process_output_buffers (vector<Sample*>& bufs, uint32_t nbufs,
+				     jack_nframes_t start_frame, jack_nframes_t end_frame,
+				     jack_nframes_t nframes, jack_nframes_t offset, bool with_redirects, int declick,
+				     bool meter);
+
+  protected:
+	/* for derived classes */
+
+	virtual XMLNode& state(bool);
+
+	void silence (jack_nframes_t nframes, jack_nframes_t offset);
+	sigc::connection input_signal_connection;
+
+	state_id_t _current_state_id;
+	uint32_t redirect_max_outs;
+
+	uint32_t pans_required() const;
+	uint32_t n_process_buffers ();
+
+  private:
+	void init ();
+
+	static uint32_t order_key_cnt;
+	typedef std::map<std::string,long> OrderKeys;
+	OrderKeys order_keys;
+
+	void input_change_handler (IOChange, void *src);
+	void output_change_handler (IOChange, void *src);
+
+	bool legal_redirect (Redirect&);
+	int reset_plugin_counts (uint32_t*); /* locked */
+	int _reset_plugin_counts (uint32_t*); /* unlocked */
+
+	/* plugin count handling */
+
+	struct InsertCount {
+	    ARDOUR::Insert& insert;
+	    int32_t cnt;
+	    int32_t in;
+	    int32_t out;
+
+	    InsertCount (ARDOUR::Insert& ins) : insert (ins), cnt (-1) {}
+	};
+	
+	int32_t apply_some_plugin_counts (std::list<InsertCount>& iclist);
+	int32_t check_some_plugin_counts (std::list<InsertCount>& iclist, int32_t required_inputs, uint32_t* err_streams);
+
+	void set_deferred_state ();
+	void add_redirect_from_xml (const XMLNode&);
+	void redirect_active_proxy (Redirect*, void*);
+};
+
+}; /* namespace ARDOUR*/
+
+#endif /* __ardour_route_h__ */