some new headers

git-svn-id: svn://localhost/ardour2/branches/3.0@8522 d708f5d6-7413-0410-9779-e7cbd77b26cf

libs/ardour/ardour/pannable.h

@@ -0,0 +1,77 @@
+/*
+    Copyright (C) 2011 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 __libardour_pannable_h__
+#define __libardour_pannable_h__
+
+#include <string>
+
+#include <boost/shared_ptr.hpp>
+
+#include "evoral/Parameter.hpp"
+
+#include "ardour/automatable.h"
+#include "ardour/session_handle.h"
+
+namespace ARDOUR {
+
+class Session;
+class AutomationControl;
+
+struct Pannable : public Automatable, public SessionHandleRef {
+        Pannable (Session& s);
+
+        boost::shared_ptr<AutomationControl> pan_azimuth_control;
+        boost::shared_ptr<AutomationControl> pan_elevation_control;
+        boost::shared_ptr<AutomationControl> pan_width_control;
+        boost::shared_ptr<AutomationControl> pan_frontback_control;
+        boost::shared_ptr<AutomationControl> pan_lfe_control;
+
+        Session& session() { return _session; }
+
+	void set_automation_state (AutoState);
+	AutoState automation_state() const { return _auto_state; }
+	PBD::Signal1<void, AutoState> automation_state_changed;
+
+	void set_automation_style (AutoStyle m);
+	AutoStyle automation_style() const { return _auto_style; }
+	PBD::Signal0<void> automation_style_changed;
+
+	bool automation_playback() const {
+		return (_auto_state & Play) || ((_auto_state & Touch) && !touching());
+	}
+	bool automation_write () const {
+                return ((_auto_state & Write) || ((_auto_state & Touch) && touching()));
+        }
+
+	void start_touch (double when);
+	void stop_touch (bool mark, double when);
+	bool touching() const { return g_atomic_int_get (&_touching); }
+	bool writing() const { return _auto_state == Write; }
+        bool touch_enabled() const { return _auto_state == Touch; }
+
+  protected:
+        AutoState _auto_state;
+        AutoStyle _auto_style;
+        gint      _touching;
+};
+
+} // namespace 
+
+#endif /* __libardour_pannable_h__ */

libs/ardour/ardour/panner_manager.h

@@ -0,0 +1,45 @@
+#ifndef __ardour_panner_manager_h__
+#define __ardour_panner_manager_h__
+
+#include <dlfcn.h>
+#include "ardour/panner.h"
+#include "ardour/session_handle.h"
+
+namespace ARDOUR {
+
+struct PannerInfo {
+    PanPluginDescriptor descriptor;
+    void* module;
+    
+    PannerInfo (PanPluginDescriptor& d, void* handle) 
+            : descriptor (d)
+            , module (handle)
+    {}
+    
+    ~PannerInfo () { 
+            dlclose (module);
+    }
+};
+        
+class PannerManager : public ARDOUR::SessionHandlePtr
+{
+  public:
+    ~PannerManager ();
+    static PannerManager& instance ();
+    
+    void discover_panners ();
+    std::list<PannerInfo*> panner_info;
+
+    PannerInfo* select_panner (ChanCount in, ChanCount out);
+    
+  private:
+    PannerManager();
+    static PannerManager* _instance;
+
+    PannerInfo* get_descriptor (std::string path);
+    int panner_discover (std::string path);
+};
+
+} // namespace
+
+#endif /* __ardour_panner_manager_h__ */

libs/ardour/ardour/panner_search_path.h

@@ -0,0 +1,39 @@
+/*
+    Copyright (C) 2011 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_panner_search_path_h__
+#define __ardour_panner_search_path_h__
+
+#include "pbd/search_path.h"
+
+namespace ARDOUR {
+
+	/**
+	 * return a SearchPath containing directories in which to look for
+	 * panner plugins.
+	 *
+	 * If ARDOUR_PANNER_PATH is defined then the SearchPath returned
+	 * will contain only those directories specified in it, otherwise it will
+	 * contain the user and system directories which may contain control
+	 * surface plugins.
+	 */
+	PBD::SearchPath panner_search_path ();
+
+} // namespace ARDOUR
+
+#endif /* __ardour_panner_search_path_h__ */

libs/ardour/ardour/panner_shell.h

@@ -0,0 +1,83 @@
+/*
+    Copyright (C) 2004-2011 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_panner_shell_h__
+#define __ardour_panner_shell_h__
+
+#include <cmath>
+#include <cassert>
+#include <vector>
+#include <string>
+#include <iostream>
+
+#include <boost/noncopyable.hpp>
+
+#include "pbd/cartesian.h"
+
+#include "ardour/types.h"
+#include "ardour/session_object.h"
+
+namespace ARDOUR {
+
+class Session;
+class Panner;
+class BufferSet;
+class AudioBuffer;
+class Speakers;
+class Pannable;
+
+/** Class to manage panning by instantiating and controlling
+ *  the appropriate specific PannerBase objects for a given
+ *  in/out configuration.
+ */
+class PannerShell : public SessionObject
+{
+public:
+	PannerShell (std::string name, Session&, boost::shared_ptr<Pannable>);
+	virtual ~PannerShell ();
+
+	std::string describe_parameter (Evoral::Parameter param);
+
+	bool can_support_io_configuration (const ChanCount& /*in*/, ChanCount& /*out*/) const { return true; };
+	void configure_io (ChanCount in, ChanCount out);
+
+	/// The fundamental Panner function
+	void run (BufferSet& src, BufferSet& dest, framepos_t start_frame, framepos_t end_frames, pframes_t nframes);
+
+
+	XMLNode& get_state (void);
+	XMLNode& state (bool full);
+	int      set_state (const XMLNode&, int version);
+
+	PBD::Signal0<void> Changed; /* panner and/or outputs count changed */
+
+        boost::shared_ptr<Panner> panner() const { return _panner; }
+        boost::shared_ptr<Pannable> pannable() const { return _pannable; }
+
+  private:
+	void distribute_no_automation (BufferSet& src, BufferSet& dest, pframes_t nframes, gain_t gain_coeff);
+        boost::shared_ptr<Panner> _panner;
+        boost::shared_ptr<Pannable> _pannable;
+     
+	static float current_automation_version_number;
+};
+
+} // namespace ARDOUR
+
+#endif /* __ardour_panner_shell_h__ */