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>
33 #include "ardour/plugin.h"
35 #include <AudioUnit/AudioUnit.h>
36 #include <AudioUnit/AudioUnitProperties.h>
37 #include "AUParamInfo.h"
39 #include <boost/shared_ptr.hpp>
43 class CAComponentDescription;
44 struct AudioBufferList;
51 struct LIBARDOUR_API AUParameterDescriptor : public ParameterDescriptor {
52 // additional fields to make operations more efficient
53 AudioUnitParameterID id;
55 AudioUnitElement element;
57 AudioUnitParameterUnit au_unit;
60 class LIBARDOUR_API AUPlugin : public ARDOUR::Plugin
63 AUPlugin (AudioEngine& engine, Session& session, boost::shared_ptr<CAComponent> comp);
64 AUPlugin (const AUPlugin& other);
67 std::string unique_id () const;
68 const char * label () const;
69 const char * name () const { return _info->name.c_str(); }
70 const char * maker () const { return _info->creator.c_str(); }
71 uint32_t parameter_count () const;
72 float default_value (uint32_t port);
73 framecnt_t signal_latency() const;
74 void set_parameter (uint32_t which, float val);
75 float get_parameter (uint32_t which) const;
77 PluginOutputConfiguration possible_output () const { return _output_configs; }
79 int get_parameter_descriptor (uint32_t which, ParameterDescriptor&) const;
80 uint32_t nth_parameter (uint32_t which, bool& ok) const;
84 int set_block_size (pframes_t nframes);
86 int connect_and_run (BufferSet& bufs,
87 ChanMapping in, ChanMapping out,
88 pframes_t nframes, framecnt_t offset);
89 std::set<Evoral::Parameter> automatable() const;
90 std::string describe_parameter (Evoral::Parameter);
91 std::string state_node_name () const { return "audiounit"; }
92 void print_parameter (uint32_t, char*, uint32_t len) const;
94 bool parameter_is_audio (uint32_t) const;
95 bool parameter_is_control (uint32_t) const;
96 bool parameter_is_input (uint32_t) const;
97 bool parameter_is_output (uint32_t) const;
99 void set_info (PluginInfoPtr);
101 int set_state(const XMLNode& node, int);
103 bool load_preset (PresetRecord);
104 std::string current_preset() const;
106 bool has_editor () const;
108 bool can_support_io_configuration (const ChanCount& in, ChanCount& out, ChanCount* imprecise);
109 ChanCount output_streams() const;
110 ChanCount input_streams() const;
111 bool configure_io (ChanCount in, ChanCount out);
112 bool requires_fixed_size_buffers() const;
114 void set_fixed_size_buffers (bool yn) {
115 _requires_fixed_size_buffers = yn;
118 boost::shared_ptr<CAAudioUnit> get_au () { return unit; }
119 boost::shared_ptr<CAComponent> get_comp () const { return comp; }
121 OSStatus render_callback(AudioUnitRenderActionFlags *ioActionFlags,
122 const AudioTimeStamp *inTimeStamp,
124 UInt32 inNumberFrames,
125 AudioBufferList* ioData);
127 /* "host" callbacks */
129 OSStatus get_beat_and_tempo_callback (Float64* outCurrentBeat,
130 Float64* outCurrentTempo);
132 OSStatus get_musical_time_location_callback (UInt32* outDeltaSampleOffsetToNextBeat,
133 Float32* outTimeSig_Numerator,
134 UInt32* outTimeSig_Denominator,
135 Float64* outCurrentMeasureDownBeat);
137 OSStatus get_transport_state_callback (Boolean* outIsPlaying,
138 Boolean* outTransportStateChanged,
139 Float64* outCurrentSampleInTimeLine,
140 Boolean* outIsCycling,
141 Float64* outCycleStartBeat,
142 Float64* outCycleEndBeat);
144 static std::string maybe_fix_broken_au_id (const std::string&);
146 /* this MUST be called from thread in which you want to receive notifications
147 about parameter changes.
149 int create_parameter_listener (AUEventListenerProc callback, void *arg, float interval_secs);
150 /* these can be called from any thread but SHOULD be called from the same thread
151 that will receive parameter change notifications.
153 int listen_to_parameter (uint32_t param_id);
154 int end_listen_to_parameter (uint32_t param_id);
158 std::string do_save_preset (std::string name);
159 void do_remove_preset (std::string);
162 void find_presets ();
164 boost::shared_ptr<CAComponent> comp;
165 boost::shared_ptr<CAAudioUnit> unit;
168 int32_t input_channels;
169 int32_t output_channels;
170 std::vector<std::pair<int,int> > io_configs;
171 pframes_t _current_block_size;
172 framecnt_t _last_nframes;
173 bool _requires_fixed_size_buffers;
174 AudioBufferList* buffers;
175 bool _has_midi_input;
176 bool _has_midi_output;
177 PluginOutputConfiguration _output_configs;
179 /* despite all the cool work that apple did on their AU preset
180 system, they left factory presets and user presets as two
181 entirely different kinds of things, handled by two entirely
182 different parts of the API. Resolve this.
185 /* XXX these two maps should really be shared across all instances of this AUPlugin */
187 typedef std::map<std::string,std::string> UserPresetMap;
188 UserPresetMap user_preset_map;
189 typedef std::map<std::string,int> FactoryPresetMap;
190 FactoryPresetMap factory_preset_map;
192 UInt32 global_elements;
193 UInt32 output_elements;
194 UInt32 input_elements;
196 int set_output_format (AudioStreamBasicDescription&);
197 int set_input_format (AudioStreamBasicDescription&);
198 int set_stream_format (int scope, uint32_t cnt, AudioStreamBasicDescription&);
199 void discover_parameters ();
200 void add_state (XMLNode *) const;
202 typedef std::map<uint32_t, uint32_t> ParameterMap;
203 ParameterMap parameter_map;
204 uint32_t input_maxbuf;
205 framecnt_t input_offset;
206 framecnt_t cb_offset;
207 BufferSet* input_buffers;
208 ChanMapping * input_map;
209 framecnt_t frames_processed;
210 uint32_t audio_input_cnt;
212 std::vector<AUParameterDescriptor> descriptors;
213 AUEventListenerRef _parameter_listener;
214 void * _parameter_listener_arg;
217 void discover_factory_presets ();
219 bool last_transport_rolling;
220 float last_transport_speed;
222 static void _parameter_change_listener (void* /*arg*/, void* /*src*/, const AudioUnitEvent* event, UInt64 host_time, Float32 new_value);
223 void parameter_change_listener (void* /*arg*/, void* /*src*/, const AudioUnitEvent* event, UInt64 host_time, Float32 new_value);
226 typedef boost::shared_ptr<AUPlugin> AUPluginPtr;
228 struct LIBARDOUR_API AUPluginCachedInfo {
229 std::vector<std::pair<int,int> > io_configs;
232 class LIBARDOUR_API AUPluginInfo : public PluginInfo {
234 AUPluginInfo (boost::shared_ptr<CAComponentDescription>);
237 PluginPtr load (Session& session);
239 std::vector<Plugin::PresetRecord> get_presets (bool user_only) const;
241 bool needs_midi_input () const;
242 bool is_effect () const;
243 bool is_effect_without_midi_input () const;
244 bool is_effect_with_midi_input () const;
245 bool is_instrument () const;
247 AUPluginCachedInfo cache;
249 bool reconfigurable_io() const { return true; }
251 static PluginInfoList* discover (bool scan_only);
252 static bool au_get_crashlog (std::string &msg);
253 static std::string stringify_descriptor (const CAComponentDescription&);
255 static int load_cached_info ();
258 boost::shared_ptr<CAComponentDescription> descriptor;
260 static FILE * _crashlog_fd;
261 static bool _scan_only;
263 static void au_start_crashlog (void);
264 static void au_remove_crashlog (void);
265 static void au_crashlog (std::string);
267 static void discover_music (PluginInfoList&);
268 static void discover_fx (PluginInfoList&);
269 static void discover_generators (PluginInfoList&);
270 static void discover_instruments (PluginInfoList&);
271 static void discover_by_description (PluginInfoList&, CAComponentDescription&);
272 static Glib::ustring au_cache_path ();
274 typedef std::map<std::string,AUPluginCachedInfo> CachedInfoMap;
275 static CachedInfoMap cached_info;
277 static int cached_io_configuration (const std::string&, UInt32, CAComponent&, AUPluginCachedInfo&, const std::string& name);
278 static void add_cached_info (const std::string&, AUPluginCachedInfo&);
279 static void save_cached_info ();
282 typedef boost::shared_ptr<AUPluginInfo> AUPluginInfoPtr;
284 } // namespace ARDOUR
286 #endif // __ardour_audio_unit_h__