tentative commit of new panners subtree

git-svn-id: svn://localhost/ardour2/branches/3.0@8521 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 90 insertions, 0 deletions

diff --git a/libs/panners/vbap/vbap.h b/libs/panners/vbap/vbap.h
new file mode 100644
index 0000000000..aacff8894c
--- /dev/null
+++ b/libs/panners/vbap/vbap.h
@@ -0,0 +1,90 @@
+/*
+    Copyright (C) 2010 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_vbap_h__
+#define __libardour_vbap_h__
+
+#include <string>
+#include <map>
+
+#include "pbd/cartesian.h"
+
+#include "ardour/panner.h"
+#include "ardour/panner_shell.h"
+#include "ardour/vbap_speakers.h"
+
+namespace ARDOUR {
+
+class Speakers;
+class Pannable;
+
+class VBAPanner : public Panner 
+{ 
+public:
+	VBAPanner (boost::shared_ptr<Pannable>, Speakers& s);
+	~VBAPanner ();
+
+        void configure_io (const ChanCount& in, const ChanCount& /* ignored - we use Speakers */);
+        ChanCount in() const;
+        ChanCount out() const;
+
+	static Panner* factory (boost::shared_ptr<Pannable>, Speakers& s);
+
+	void do_distribute (BufferSet& ibufs, BufferSet& obufs, gain_t gain_coeff, pframes_t nframes);
+	void do_distribute_automated (BufferSet& ibufs, BufferSet& obufs,
+	                              framepos_t start, framepos_t end, pframes_t nframes, pan_t** buffers);
+
+	void set_azimuth_elevation (double azimuth, double elevation);
+
+	XMLNode& state (bool full_state);
+	XMLNode& get_state ();
+	int set_state (const XMLNode&, int version);
+
+        boost::shared_ptr<AutomationControl> azimuth_control (uint32_t signal);
+        boost::shared_ptr<AutomationControl> evelation_control (uint32_t signal);
+
+        std::string describe_parameter (Evoral::Parameter param);
+
+private:
+        struct Signal {
+            PBD::AngularVector direction;
+            double gains[3];
+            double desired_gains[3];
+            int    outputs[3];
+            int    desired_outputs[3];
+            boost::shared_ptr<AutomationControl> azimuth_control;
+            boost::shared_ptr<AutomationControl> elevation_control;
+
+            Signal (Session&, VBAPanner&, uint32_t which);
+        };
+
+        std::vector<Signal*> _signals;
+	bool                _dirty;
+        VBAPSpeakers&       _speakers;
+        
+	void compute_gains (double g[3], int ls[3], int azi, int ele);
+
+	void do_distribute_one (AudioBuffer& src, BufferSet& obufs, gain_t gain_coeff, pframes_t nframes, uint32_t which);
+	void do_distribute_one_automated (AudioBuffer& src, BufferSet& obufs,
+                                          framepos_t start, framepos_t end, pframes_t nframes, 
+                                          pan_t** buffers, uint32_t which);
+};
+
+} /* namespace */
+
+#endif /* __libardour_vbap_h__ */