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 "appleutility/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 int get_parameter_descriptor (uint32_t which, ParameterDescriptor&) const;
78 uint32_t nth_parameter (uint32_t which, bool& ok) const;
82 int set_block_size (pframes_t nframes);
84 int connect_and_run (BufferSet& bufs,
85 ChanMapping in, ChanMapping out,
86 pframes_t nframes, framecnt_t offset);
87 std::set<Evoral::Parameter> automatable() const;
88 std::string describe_parameter (Evoral::Parameter);
89 std::string state_node_name () const { return "audiounit"; }
90 void print_parameter (uint32_t, char*, uint32_t len) const;
92 bool parameter_is_audio (uint32_t) const;
93 bool parameter_is_control (uint32_t) const;
94 bool parameter_is_input (uint32_t) const;
95 bool parameter_is_output (uint32_t) const;
97 void set_info (PluginInfoPtr);
99 int set_state(const XMLNode& node, int);
101 bool load_preset (PresetRecord);
102 std::string current_preset() const;
104 bool has_editor () const;
106 bool can_support_io_configuration (const ChanCount& in, ChanCount& out);
107 ChanCount output_streams() const;
108 ChanCount input_streams() const;
109 bool configure_io (ChanCount in, ChanCount out);
110 bool requires_fixed_size_buffers() const;
112 void set_fixed_size_buffers (bool yn) {
113 _requires_fixed_size_buffers = yn;
116 boost::shared_ptr<CAAudioUnit> get_au () { return unit; }
117 boost::shared_ptr<CAComponent> get_comp () const { return comp; }
119 OSStatus render_callback(AudioUnitRenderActionFlags *ioActionFlags,
120 const AudioTimeStamp *inTimeStamp,
122 UInt32 inNumberFrames,
123 AudioBufferList* ioData);
125 /* "host" callbacks */
127 OSStatus get_beat_and_tempo_callback (Float64* outCurrentBeat,
128 Float64* outCurrentTempo);
130 OSStatus get_musical_time_location_callback (UInt32* outDeltaSampleOffsetToNextBeat,
131 Float32* outTimeSig_Numerator,
132 UInt32* outTimeSig_Denominator,
133 Float64* outCurrentMeasureDownBeat);
135 OSStatus get_transport_state_callback (Boolean* outIsPlaying,
136 Boolean* outTransportStateChanged,
137 Float64* outCurrentSampleInTimeLine,
138 Boolean* outIsCycling,
139 Float64* outCycleStartBeat,
140 Float64* outCycleEndBeat);
142 static std::string maybe_fix_broken_au_id (const std::string&);
144 /* this MUST be called from thread in which you want to receive notifications
145 about parameter changes.
147 int create_parameter_listener (AUEventListenerProc callback, void *arg, float interval_secs);
148 /* these can be called from any thread but SHOULD be called from the same thread
149 that will receive parameter change notifications.
151 int listen_to_parameter (uint32_t param_id);
152 int end_listen_to_parameter (uint32_t param_id);
156 std::string do_save_preset (std::string name);
157 void do_remove_preset (std::string);
160 void find_presets ();
162 boost::shared_ptr<CAComponent> comp;
163 boost::shared_ptr<CAAudioUnit> unit;
166 int32_t input_channels;
167 int32_t output_channels;
168 std::vector<std::pair<int,int> > io_configs;
169 pframes_t _current_block_size;
170 framecnt_t _last_nframes;
171 bool _requires_fixed_size_buffers;
172 AudioBufferList* buffers;
173 bool _has_midi_input;
174 bool _has_midi_output;
176 /* despite all the cool work that apple did on their AU preset
177 system, they left factory presets and user presets as two
178 entirely different kinds of things, handled by two entirely
179 different parts of the API. Resolve this.
182 /* XXX these two maps should really be shared across all instances of this AUPlugin */
184 typedef std::map<std::string,std::string> UserPresetMap;
185 UserPresetMap user_preset_map;
186 typedef std::map<std::string,int> FactoryPresetMap;
187 FactoryPresetMap factory_preset_map;
189 UInt32 global_elements;
190 UInt32 output_elements;
191 UInt32 input_elements;
193 int set_output_format (AudioStreamBasicDescription&);
194 int set_input_format (AudioStreamBasicDescription&);
195 int set_stream_format (int scope, uint32_t cnt, AudioStreamBasicDescription&);
196 void discover_parameters ();
197 void add_state (XMLNode *) const;
199 typedef std::map<uint32_t, uint32_t> ParameterMap;
200 ParameterMap parameter_map;
201 uint32_t input_maxbuf;
202 framecnt_t input_offset;
203 framecnt_t cb_offset;
204 BufferSet* input_buffers;
205 framecnt_t frames_processed;
207 std::vector<AUParameterDescriptor> descriptors;
208 AUEventListenerRef _parameter_listener;
209 void * _parameter_listener_arg;
212 void discover_factory_presets ();
214 bool last_transport_rolling;
215 float last_transport_speed;
217 static void _parameter_change_listener (void* /*arg*/, void* /*src*/, const AudioUnitEvent* event, UInt64 host_time, Float32 new_value);
218 void parameter_change_listener (void* /*arg*/, void* /*src*/, const AudioUnitEvent* event, UInt64 host_time, Float32 new_value);
221 typedef boost::shared_ptr<AUPlugin> AUPluginPtr;
223 struct LIBARDOUR_API AUPluginCachedInfo {
224 std::vector<std::pair<int,int> > io_configs;
227 class LIBARDOUR_API AUPluginInfo : public PluginInfo {
229 AUPluginInfo (boost::shared_ptr<CAComponentDescription>);
232 PluginPtr load (Session& session);
234 bool needs_midi_input ();
235 bool is_effect () const;
236 bool is_effect_without_midi_input () const;
237 bool is_effect_with_midi_input () const;
238 bool is_instrument () const;
240 AUPluginCachedInfo cache;
242 bool reconfigurable_io() const { return true; }
244 static PluginInfoList* discover ();
245 static bool au_get_crashlog (std::string &msg);
246 static void get_names (CAComponentDescription&, std::string& name, std::string& maker);
247 static std::string stringify_descriptor (const CAComponentDescription&);
249 static int load_cached_info ();
252 boost::shared_ptr<CAComponentDescription> descriptor;
254 static FILE * _crashlog_fd;
256 static void au_start_crashlog (void);
257 static void au_remove_crashlog (void);
258 static void au_crashlog (std::string);
260 static void discover_music (PluginInfoList&);
261 static void discover_fx (PluginInfoList&);
262 static void discover_generators (PluginInfoList&);
263 static void discover_instruments (PluginInfoList&);
264 static void discover_by_description (PluginInfoList&, CAComponentDescription&);
265 static Glib::ustring au_cache_path ();
267 typedef std::map<std::string,AUPluginCachedInfo> CachedInfoMap;
268 static CachedInfoMap cached_info;
270 static bool cached_io_configuration (const std::string&, UInt32, CAComponent&, AUPluginCachedInfo&, const std::string& name);
271 static void add_cached_info (const std::string&, AUPluginCachedInfo&);
272 static void save_cached_info ();
275 typedef boost::shared_ptr<AUPluginInfo> AUPluginInfoPtr;
277 } // namespace ARDOUR
279 #endif // __ardour_audio_unit_h__