2 Copyright (C) 2006 Paul Davis
3 Written by Taybin Rutkin
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #ifndef __ardour_audio_unit_h__
22 #define __ardour_audio_unit_h__
25 #include <boost/shared_ptr.hpp>
32 #include <ardour/plugin.h>
34 #include <AudioUnit/AudioUnit.h>
35 #include <appleutility/AUParamInfo.h>
37 #include <boost/shared_ptr.hpp>
41 class CAComponentDescription;
42 struct AudioBufferList;
49 struct AUParameterDescriptor : public Plugin::ParameterDescriptor {
50 // additional fields to make operations more efficient
51 AudioUnitParameterID id;
53 AudioUnitElement element;
56 AudioUnitParameterUnit unit;
59 class AUPlugin : public ARDOUR::Plugin
62 AUPlugin (AudioEngine& engine, Session& session, boost::shared_ptr<CAComponent> comp);
63 AUPlugin (const AUPlugin& other);
66 std::string unique_id () const;
67 const char * label () const;
68 const char * name () const { return _info->name.c_str(); }
69 const char * maker () const { return _info->creator.c_str(); }
70 uint32_t parameter_count () const;
71 float default_value (uint32_t port);
72 nframes_t signal_latency () const;
73 void set_parameter (uint32_t which, float val);
74 float get_parameter (uint32_t which) const;
76 int get_parameter_descriptor (uint32_t which, ParameterDescriptor&) const;
77 uint32_t nth_parameter (uint32_t which, bool& ok) const;
80 void set_block_size (nframes_t nframes);
82 int connect_and_run (BufferSet& bufs, uint32_t& in, uint32_t& out, nframes_t nframes, nframes_t offset);
84 std::set<uint32_t> automatable() const;
85 string describe_parameter (uint32_t);
86 string state_node_name () const { return "audiounit"; }
87 void print_parameter (uint32_t, char*, uint32_t len) const;
89 bool parameter_is_audio (uint32_t) const;
90 bool parameter_is_control (uint32_t) const;
91 bool parameter_is_input (uint32_t) const;
92 bool parameter_is_output (uint32_t) const;
95 int set_state(const XMLNode& node);
97 bool save_preset (string name);
98 bool load_preset (const string preset_label);
99 std::vector<std::string> get_presets ();
101 bool has_editor () const;
103 bool reconfigurable_io() const { return true; }
104 bool can_support_io_configuration (const ChanCount& in, ChanCount& out) const;
105 int32_t count_for_configuration (const ChanCount& in, ChanCount out) const;
106 bool configure_io (ChanCount in, ChanCount& out);
107 ChanCount output_streams() const;
108 ChanCount input_streams() const;
110 boost::shared_ptr<CAAudioUnit> get_au () { return unit; }
111 boost::shared_ptr<CAComponent> get_comp () const { return comp; }
113 OSStatus render_callback(AudioUnitRenderActionFlags *ioActionFlags,
114 const AudioTimeStamp *inTimeStamp,
116 UInt32 inNumberFrames,
117 AudioBufferList* ioData);
119 boost::shared_ptr<CAComponent> comp;
120 boost::shared_ptr<CAAudioUnit> unit;
123 int32_t input_channels;
124 int32_t output_channels;
125 std::vector<std::pair<int,int> > io_configs;
126 AudioBufferList* buffers;
128 UInt32 global_elements;
129 UInt32 output_elements;
130 UInt32 input_elements;
132 int set_output_format (AudioStreamBasicDescription&);
133 int set_input_format (AudioStreamBasicDescription&);
134 int set_stream_format (int scope, uint32_t cnt, AudioStreamBasicDescription&);
135 int _set_block_size (nframes_t nframes);
136 void discover_parameters ();
138 std::vector<std::pair<uint32_t, uint32_t> > parameter_map;
139 uint32_t current_maxbuf;
140 nframes_t current_offset;
142 vector<Sample*>* current_buffers;
143 nframes_t frames_processed;
145 std::vector<AUParameterDescriptor> descriptors;
150 typedef boost::shared_ptr<AUPlugin> AUPluginPtr;
152 struct AUPluginCachedInfo {
153 std::vector<std::pair<int,int> > io_configs;
156 class AUPluginInfo : public PluginInfo {
158 AUPluginInfo (boost::shared_ptr<CAComponentDescription>);
161 PluginPtr load (Session& session);
163 AUPluginCachedInfo cache;
165 static PluginInfoList discover ();
166 static void get_names (CAComponentDescription&, std::string& name, Glib::ustring& maker);
167 static std::string stringify_descriptor (const CAComponentDescription&);
169 static int load_cached_info ();
172 boost::shared_ptr<CAComponentDescription> descriptor;
175 static void discover_music (PluginInfoList&);
176 static void discover_fx (PluginInfoList&);
177 static void discover_by_description (PluginInfoList&, CAComponentDescription&);
178 static Glib::ustring au_cache_path ();
180 typedef std::map<std::string,AUPluginCachedInfo> CachedInfoMap;
181 static CachedInfoMap cached_info;
183 static bool cached_io_configuration (const std::string&, UInt32, CAComponent&, AUPluginCachedInfo&, const std::string& name);
184 static void add_cached_info (const std::string&, AUPluginCachedInfo&);
185 static void save_cached_info ();
188 typedef boost::shared_ptr<AUPluginInfo> AUPluginInfoPtr;
190 } // namespace ARDOUR
192 #endif // __ardour_audio_unit_h__