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    Copyright (C) 2006 Paul Davis 
    Written by Taybin Rutkin

    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
    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_audio_unit_h__
#define __ardour_audio_unit_h__

#include <stdint.h>

#include <list>
#include <set>
#include <string>
#include <vector>

#include <ardour/plugin.h>

#include <boost/shared_ptr.hpp>

class CAComponent;
class CAAudioUnit;
class CAComponentDescription;
struct AudioBufferList;

namespace ARDOUR {

class AudioEngine;
class Session;

class AUPlugin : public ARDOUR::Plugin
      AUPlugin (AudioEngine& engine, Session& session, CAComponent* comp);
      virtual ~AUPlugin ();
      uint32_t unique_id () const;
      const char * label () const;
      const char * name () const { return _info->name.c_str(); }
      const char * maker () const;
      uint32_t parameter_count () const;
      float default_value (uint32_t port);
      nframes_t latency () const;
      void set_parameter (uint32_t which, float val);
      float get_parameter (uint32_t which) const;
      int get_parameter_descriptor (uint32_t which, ParameterDescriptor&) const;
      uint32_t nth_parameter (uint32_t which, bool& ok) const;
      void activate ();
      void deactivate ();
      void set_block_size (nframes_t nframes);
      int connect_and_run (vector<Sample*>& bufs, uint32_t maxbuf, int32_t& in, int32_t& out, nframes_t nframes, nframes_t offset);
      std::set<uint32_t> automatable() const;
      string describe_parameter (uint32_t);
      string state_node_name () const { return "audiounit"; }
      void print_parameter (uint32_t, char*, uint32_t len) const;
      bool parameter_is_audio (uint32_t) const;
      bool parameter_is_control (uint32_t) const;
      bool parameter_is_input (uint32_t) const;
      bool parameter_is_output (uint32_t) const;
      XMLNode& get_state();
      int set_state(const XMLNode& node);
      bool save_preset (string name);
      bool load_preset (const string preset_label);
      std::vector<std::string> get_presets ();
      bool has_editor () const;
      CAAudioUnit* get_au () { return unit; }
      CAComponent* get_comp () { return comp; }
      CAComponent* comp;
    CAAudioUnit* unit;

      AudioBufferList* in_list;
      AudioBufferList* out_list;

      std::vector<std::pair<uint32_t, uint32_t> > parameter_map;

typedef boost::shared_ptr<AUPlugin> AUPluginPtr;

class AUPluginInfo : public PluginInfo {
      AUPluginInfo () { };
      ~AUPluginInfo ();

      CAComponentDescription* desc;

      static PluginInfoList discover ();
      PluginPtr load (Session& session);

      static std::string get_name (CAComponentDescription&);
      void setup_nchannels (CAComponentDescription&);

typedef boost::shared_ptr<AUPluginInfo> AUPluginInfoPtr;

} // namespace ARDOUR

#endif // __ardour_audio_unit_h__

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