libardour added.

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

1 files changed, 194 insertions, 0 deletions

diff --git a/libs/ardour/ardour/plugin.h b/libs/ardour/ardour/plugin.h
new file mode 100644
index 0000000000..8839393b72
--- /dev/null
+++ b/libs/ardour/ardour/plugin.h
@@ -0,0 +1,194 @@
+/*
+    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.
+
+    $Id$
+*/
+
+#ifndef __ardour_ladspa_h__
+#define __ardour_ladspa_h__
+
+#include <midi++/controllable.h>
+#include <sigc++/signal.h>
+
+#include <jack/types.h>
+#include <ardour/types.h>
+#include <ardour/stateful.h>
+#include <ardour/plugin_state.h>
+#include <ardour/cycles.h>
+
+#include <list>
+#include <vector>
+#include <set>
+#include <map>
+
+using std::string;
+using std::vector;
+using std::list;
+using std::set;
+using std::map;
+
+namespace ARDOUR {
+
+class AudioEngine;
+class Session;
+
+class PluginInfo {
+  public:
+	enum Type {
+		LADSPA,
+		VST
+	};
+
+	PluginInfo () { };
+	PluginInfo (const PluginInfo &o)
+		: name(o.name), n_inputs(o.n_inputs), n_outputs(o.n_outputs),
+		path (o.path), index(o.index) {}
+	~PluginInfo () { };
+	string name;
+	string category;
+	uint32_t n_inputs;
+	uint32_t n_outputs;
+	Type type;
+
+  private:
+	friend class PluginManager;
+	string path;
+	uint32_t index;
+};
+
+class Plugin : public Stateful, public sigc::trackable
+
+{
+  public:
+	Plugin (ARDOUR::AudioEngine&, ARDOUR::Session&);
+	Plugin (const Plugin&);
+	~Plugin ();
+	
+	struct ParameterDescriptor {
+
+	    /* essentially a union of LADSPA and VST info */
+
+	    bool integer_step;
+	    bool toggled;
+	    bool logarithmic;
+	    bool sr_dependent;
+	    string label;
+	    float lower;
+	    float upper;
+	    float step;
+	    float smallstep;
+	    float largestep;
+
+		bool min_unbound;
+		bool max_unbound;
+	};
+
+	virtual uint32_t unique_id() const = 0;
+	virtual const char * label() const = 0;
+	virtual const char * name() const = 0;
+	virtual const char * maker() const = 0;
+	virtual uint32_t parameter_count () const = 0;
+	virtual float default_value (uint32_t port) = 0;
+	virtual jack_nframes_t latency() const = 0;
+	virtual void set_parameter (uint32_t which, float val) = 0;
+	virtual float get_parameter(uint32_t which) const = 0;
+
+	virtual int get_parameter_descriptor (uint32_t which, ParameterDescriptor&) const = 0;
+	virtual uint32_t nth_parameter (uint32_t which, bool& ok) const = 0;
+	virtual void activate () = 0;
+	virtual void deactivate () = 0;
+	virtual void set_block_size (jack_nframes_t nframes) = 0;
+
+	virtual int connect_and_run (vector<Sample*>& bufs, uint32_t maxbuf, int32_t& in, int32_t& out, jack_nframes_t nframes, jack_nframes_t offset) = 0;
+	virtual std::set<uint32_t> automatable() const = 0;
+	virtual void store_state (ARDOUR::PluginState&) = 0;
+	virtual void restore_state (ARDOUR::PluginState&) = 0;
+	virtual string describe_parameter (uint32_t) = 0;
+	virtual string state_node_name() const = 0;
+	virtual void print_parameter (uint32_t, char*, uint32_t len) const = 0;
+
+	virtual bool parameter_is_audio(uint32_t) const = 0;
+	virtual bool parameter_is_control(uint32_t) const = 0;
+	virtual bool parameter_is_input(uint32_t) const = 0;
+	virtual bool parameter_is_output(uint32_t) const = 0;
+
+	virtual bool save_preset(string name) = 0;
+	virtual bool load_preset (const string preset_label);
+	virtual list<string> get_presets();
+
+	virtual bool has_editor() const = 0;
+
+	sigc::signal<void,uint32_t,float> ParameterChanged;
+	sigc::signal<void,Plugin *> GoingAway;
+	
+	void reset_midi_control (MIDI::Port*, bool);
+	void send_all_midi_feedback ();
+	MIDI::byte* write_midi_feedback (MIDI::byte*, int32_t& bufsize);
+	MIDI::Controllable *get_nth_midi_control (uint32_t);
+
+	PluginInfo & get_info() { return _info; }
+	void set_info (const PluginInfo &inf) { _info = inf; }
+
+	ARDOUR::AudioEngine& engine() const { return _engine; }
+	ARDOUR::Session& session() const { return _session; }
+
+	void set_cycles (uint32_t c) { _cycles = c; }
+	cycles_t cycles() const { return _cycles; }
+
+  protected:
+	ARDOUR::AudioEngine& _engine;
+	ARDOUR::Session& _session;
+	PluginInfo _info;
+	uint32_t _cycles;
+	map<string,string> 	 presets;
+	bool save_preset(string name, string domain /* vst, ladspa etc. */);
+
+	void setup_midi_controls ();
+
+
+	struct MIDIPortControl : public MIDI::Controllable {
+	    MIDIPortControl (Plugin&, uint32_t abs_port_id, MIDI::Port *,
+			     float lower, float upper, bool toggled, bool logarithmic);
+
+	    void set_value (float);
+	    void send_feedback (float);
+	    MIDI::byte* write_feedback (MIDI::byte* buf, int32_t& bufsize, float val, bool force = false);
+
+	    Plugin& plugin;
+	    uint32_t absolute_port;
+	    float upper;
+	    float lower;
+	    float range;
+	    bool  toggled;
+	    bool  logarithmic;
+
+	    bool setting;
+	    float last_written;
+	};
+
+	vector<MIDIPortControl*> midi_controls;
+
+	
+};
+
+/* this is actually defined in plugin_manager.cc */
+
+Plugin * find_plugin(ARDOUR::Session&, string name, PluginInfo::Type);
+
+} // namespace ARDOUR
+ 
+#endif /* __ardour_plugin_h__ */