2 Copyright (C) 2006-2009 Paul Davis
3 Some portions Copyright (C) Sophia Poirier.
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.
27 #include "pbd/transmitter.h"
28 #include "pbd/xml++.h"
29 #include "pbd/convert.h"
30 #include "pbd/whitespace.h"
31 #include "pbd/pathscanner.h"
32 #include "pbd/locale_guard.h"
34 #include <glibmm/thread.h>
35 #include <glibmm/fileutils.h>
36 #include <glibmm/miscutils.h>
38 #include "ardour/ardour.h"
39 #include "ardour/audioengine.h"
40 #include "ardour/audio_buffer.h"
41 #include "ardour/debug.h"
42 #include "ardour/midi_buffer.h"
43 #include "ardour/filesystem_paths.h"
44 #include "ardour/io.h"
45 #include "ardour/audio_unit.h"
46 #include "ardour/session.h"
47 #include "ardour/tempo.h"
48 #include "ardour/utils.h"
50 #include "appleutility/CAAudioUnit.h"
51 #include "appleutility/CAAUParameter.h"
53 #include <CoreFoundation/CoreFoundation.h>
54 #include <CoreServices/CoreServices.h>
55 #include <AudioUnit/AudioUnit.h>
56 #include <AudioToolbox/AudioUnitUtilities.h>
62 using namespace ARDOUR;
64 #ifndef AU_STATE_SUPPORT
65 static bool seen_get_state_message = false;
66 static bool seen_set_state_message = false;
67 static bool seen_loading_message = false;
68 static bool seen_saving_message = false;
71 AUPluginInfo::CachedInfoMap AUPluginInfo::cached_info;
73 static string preset_search_path = "/Library/Audio/Presets:/Network/Library/Audio/Presets";
74 static string preset_suffix = ".aupreset";
75 static bool preset_search_path_initialized = false;
78 _render_callback(void *userData,
79 AudioUnitRenderActionFlags *ioActionFlags,
80 const AudioTimeStamp *inTimeStamp,
82 UInt32 inNumberFrames,
83 AudioBufferList* ioData)
86 return ((AUPlugin*)userData)->render_callback (ioActionFlags, inTimeStamp, inBusNumber, inNumberFrames, ioData);
92 _get_beat_and_tempo_callback (void* userData,
93 Float64* outCurrentBeat,
94 Float64* outCurrentTempo)
97 return ((AUPlugin*)userData)->get_beat_and_tempo_callback (outCurrentBeat, outCurrentTempo);
104 _get_musical_time_location_callback (void * userData,
105 UInt32 * outDeltaSampleOffsetToNextBeat,
106 Float32 * outTimeSig_Numerator,
107 UInt32 * outTimeSig_Denominator,
108 Float64 * outCurrentMeasureDownBeat)
111 return ((AUPlugin*)userData)->get_musical_time_location_callback (outDeltaSampleOffsetToNextBeat,
112 outTimeSig_Numerator,
113 outTimeSig_Denominator,
114 outCurrentMeasureDownBeat);
120 _get_transport_state_callback (void* userData,
121 Boolean* outIsPlaying,
122 Boolean* outTransportStateChanged,
123 Float64* outCurrentSampleInTimeLine,
124 Boolean* outIsCycling,
125 Float64* outCycleStartBeat,
126 Float64* outCycleEndBeat)
129 return ((AUPlugin*)userData)->get_transport_state_callback (
130 outIsPlaying, outTransportStateChanged,
131 outCurrentSampleInTimeLine, outIsCycling,
132 outCycleStartBeat, outCycleEndBeat);
139 save_property_list (CFPropertyListRef propertyList, Glib::ustring path)
145 // Convert the property list into XML data.
147 xmlData = CFPropertyListCreateXMLData( kCFAllocatorDefault, propertyList);
150 error << _("Could not create XML version of property list") << endmsg;
154 // Write the XML data to the file.
156 fd = open (path.c_str(), O_WRONLY|O_CREAT|O_EXCL, 0664);
158 if (errno == EEXIST) {
159 error << string_compose (_("Preset file %1 exists; not overwriting"),
162 error << string_compose (_("Cannot open preset file %1 (%2)"),
163 path, strerror (errno)) << endmsg;
169 size_t cnt = CFDataGetLength (xmlData);
171 if (write (fd, CFDataGetBytePtr (xmlData), cnt) != (ssize_t) cnt) {
182 static CFPropertyListRef
183 load_property_list (Glib::ustring path)
186 CFPropertyListRef propertyList = 0;
188 CFStringRef errorString;
190 // Read the XML file.
192 if ((fd = open (path.c_str(), O_RDONLY)) < 0) {
197 off_t len = lseek (fd, 0, SEEK_END);
198 char* buf = new char[len];
199 lseek (fd, 0, SEEK_SET);
201 if (read (fd, buf, len) != len) {
209 xmlData = CFDataCreateWithBytesNoCopy (kCFAllocatorDefault, (UInt8*) buf, len, kCFAllocatorNull);
211 // Reconstitute the dictionary using the XML data.
213 propertyList = CFPropertyListCreateFromXMLData( kCFAllocatorDefault,
215 kCFPropertyListImmutable,
224 //-----------------------------------------------------------------------------
226 set_preset_name_in_plist (CFPropertyListRef plist, string preset_name)
231 CFStringRef pn = CFStringCreateWithCString (kCFAllocatorDefault, preset_name.c_str(), kCFStringEncodingUTF8);
233 if (CFGetTypeID (plist) == CFDictionaryGetTypeID()) {
234 CFDictionarySetValue ((CFMutableDictionaryRef)plist, CFSTR(kAUPresetNameKey), pn);
240 //-----------------------------------------------------------------------------
242 get_preset_name_in_plist (CFPropertyListRef plist)
250 if (CFGetTypeID (plist) == CFDictionaryGetTypeID()) {
251 const void *p = CFDictionaryGetValue ((CFMutableDictionaryRef)plist, CFSTR(kAUPresetNameKey));
253 CFStringRef str = (CFStringRef) p;
254 int len = CFStringGetLength(str);
256 char local_buffer[len];
257 if (CFStringGetCString (str, local_buffer, len, kCFStringEncodingUTF8)) {
265 //--------------------------------------------------------------------------
266 // general implementation for ComponentDescriptionsMatch() and ComponentDescriptionsMatch_Loosely()
267 // if inIgnoreType is true, then the type code is ignored in the ComponentDescriptions
268 Boolean ComponentDescriptionsMatch_General(const ComponentDescription * inComponentDescription1, const ComponentDescription * inComponentDescription2, Boolean inIgnoreType);
269 Boolean ComponentDescriptionsMatch_General(const ComponentDescription * inComponentDescription1, const ComponentDescription * inComponentDescription2, Boolean inIgnoreType)
271 if ( (inComponentDescription1 == NULL) || (inComponentDescription2 == NULL) )
274 if ( (inComponentDescription1->componentSubType == inComponentDescription2->componentSubType)
275 && (inComponentDescription1->componentManufacturer == inComponentDescription2->componentManufacturer) )
277 // only sub-type and manufacturer IDs need to be equal
280 // type, sub-type, and manufacturer IDs all need to be equal in order to call this a match
281 else if (inComponentDescription1->componentType == inComponentDescription2->componentType)
288 //--------------------------------------------------------------------------
289 // general implementation for ComponentAndDescriptionMatch() and ComponentAndDescriptionMatch_Loosely()
290 // if inIgnoreType is true, then the type code is ignored in the ComponentDescriptions
291 Boolean ComponentAndDescriptionMatch_General(Component inComponent, const ComponentDescription * inComponentDescription, Boolean inIgnoreType);
292 Boolean ComponentAndDescriptionMatch_General(Component inComponent, const ComponentDescription * inComponentDescription, Boolean inIgnoreType)
295 ComponentDescription desc;
297 if ( (inComponent == NULL) || (inComponentDescription == NULL) )
300 // get the ComponentDescription of the input Component
301 status = GetComponentInfo(inComponent, &desc, NULL, NULL, NULL);
305 // check if the Component's ComponentDescription matches the input ComponentDescription
306 return ComponentDescriptionsMatch_General(&desc, inComponentDescription, inIgnoreType);
309 //--------------------------------------------------------------------------
310 // determine if 2 ComponentDescriptions are basically equal
311 // (by that, I mean that the important identifying values are compared,
312 // but not the ComponentDescription flags)
313 Boolean ComponentDescriptionsMatch(const ComponentDescription * inComponentDescription1, const ComponentDescription * inComponentDescription2)
315 return ComponentDescriptionsMatch_General(inComponentDescription1, inComponentDescription2, FALSE);
318 //--------------------------------------------------------------------------
319 // determine if 2 ComponentDescriptions have matching sub-type and manufacturer codes
320 Boolean ComponentDescriptionsMatch_Loose(const ComponentDescription * inComponentDescription1, const ComponentDescription * inComponentDescription2)
322 return ComponentDescriptionsMatch_General(inComponentDescription1, inComponentDescription2, TRUE);
325 //--------------------------------------------------------------------------
326 // determine if a ComponentDescription basically matches that of a particular Component
327 Boolean ComponentAndDescriptionMatch(Component inComponent, const ComponentDescription * inComponentDescription)
329 return ComponentAndDescriptionMatch_General(inComponent, inComponentDescription, FALSE);
332 //--------------------------------------------------------------------------
333 // determine if a ComponentDescription matches only the sub-type and manufacturer codes of a particular Component
334 Boolean ComponentAndDescriptionMatch_Loosely(Component inComponent, const ComponentDescription * inComponentDescription)
336 return ComponentAndDescriptionMatch_General(inComponent, inComponentDescription, TRUE);
340 AUPlugin::AUPlugin (AudioEngine& engine, Session& session, boost::shared_ptr<CAComponent> _comp)
341 : Plugin (engine, session)
343 , unit (new CAAudioUnit)
344 , initialized (false)
345 , _current_block_size (0)
346 , _requires_fixed_size_buffers (false)
351 , frames_processed (0)
352 , _parameter_listener (0)
353 , _parameter_listener_arg (0)
354 , last_transport_rolling (false)
355 , last_transport_speed (0.0)
357 if (!preset_search_path_initialized) {
358 Glib::ustring p = Glib::get_home_dir();
359 p += "/Library/Audio/Presets:";
360 p += preset_search_path;
361 preset_search_path = p;
362 preset_search_path_initialized = true;
369 AUPlugin::AUPlugin (const AUPlugin& other)
371 , comp (other.get_comp())
372 , unit (new CAAudioUnit)
373 , initialized (false)
374 , _current_block_size (0)
376 , _requires_fixed_size_buffers (false)
381 , frames_processed (0)
382 , _parameter_listener (0)
383 , _parameter_listener_arg (0)
389 AUPlugin::~AUPlugin ()
391 if (_parameter_listener) {
392 AUListenerDispose (_parameter_listener);
393 _parameter_listener = 0;
397 DEBUG_TRACE (DEBUG::AudioUnits, "about to call uninitialize in plugin destructor\n");
398 unit->Uninitialize ();
407 AUPlugin::discover_factory_presets ()
414 if ((err = unit->GetPropertyInfo (kAudioUnitProperty_FactoryPresets, kAudioUnitScope_Global, 0, &dataSize, &isWritable)) != 0) {
415 DEBUG_TRACE (DEBUG::AudioUnits, "no factory presets for AU\n");
419 assert (dataSize == sizeof (presets));
421 if ((err = unit->GetProperty (kAudioUnitProperty_FactoryPresets, kAudioUnitScope_Global, 0, (void*) &presets, &dataSize)) != 0) {
422 error << string_compose (_("cannot get factory preset info: errcode %1"), err) << endmsg;
430 CFIndex cnt = CFArrayGetCount (presets);
432 for (CFIndex i = 0; i < cnt; ++i) {
433 AUPreset* preset = (AUPreset*) CFArrayGetValueAtIndex (presets, i);
435 string name = CFStringRefToStdString (preset->presetName);
436 factory_preset_map[name] = preset->presetNumber;
447 /* these keep track of *configured* channel set up,
448 not potential set ups.
452 output_channels = -1;
455 DEBUG_TRACE (DEBUG::AudioUnits, "opening AudioUnit\n");
456 err = CAAudioUnit::Open (*(comp.get()), *unit);
458 error << _("Exception thrown during AudioUnit plugin loading - plugin ignored") << endmsg;
459 throw failed_constructor();
463 error << _("AudioUnit: Could not convert CAComponent to CAAudioUnit") << endmsg;
464 throw failed_constructor ();
467 DEBUG_TRACE (DEBUG::AudioUnits, "count global elements\n");
468 unit->GetElementCount (kAudioUnitScope_Global, global_elements);
469 DEBUG_TRACE (DEBUG::AudioUnits, "count input elements\n");
470 unit->GetElementCount (kAudioUnitScope_Input, input_elements);
471 DEBUG_TRACE (DEBUG::AudioUnits, "count output elements\n");
472 unit->GetElementCount (kAudioUnitScope_Output, output_elements);
474 if (input_elements > 0) {
475 /* setup render callback: the plugin calls this to get input data
478 AURenderCallbackStruct renderCallbackInfo;
480 renderCallbackInfo.inputProc = _render_callback;
481 renderCallbackInfo.inputProcRefCon = this;
483 DEBUG_TRACE (DEBUG::AudioUnits, "set render callback in input scope\n");
484 if ((err = unit->SetProperty (kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Input,
485 0, (void*) &renderCallbackInfo, sizeof(renderCallbackInfo))) != 0) {
486 cerr << "cannot install render callback (err = " << err << ')' << endl;
487 throw failed_constructor();
491 /* tell the plugin about tempo/meter/transport callbacks in case it wants them */
493 HostCallbackInfo info;
494 memset (&info, 0, sizeof (HostCallbackInfo));
495 info.hostUserData = this;
496 info.beatAndTempoProc = _get_beat_and_tempo_callback;
497 info.musicalTimeLocationProc = _get_musical_time_location_callback;
498 info.transportStateProc = _get_transport_state_callback;
500 //ignore result of this - don't care if the property isn't supported
501 DEBUG_TRACE (DEBUG::AudioUnits, "set host callbacks in global scope\n");
502 unit->SetProperty (kAudioUnitProperty_HostCallbacks,
503 kAudioUnitScope_Global,
506 sizeof (HostCallbackInfo));
508 if (set_block_size (_session.get_block_size())) {
509 error << _("AUPlugin: cannot set processing block size") << endmsg;
510 throw failed_constructor();
513 create_parameter_listener (AUPlugin::_parameter_change_listener, this, 0.05);
514 discover_parameters ();
515 discover_factory_presets ();
517 // Plugin::setup_controls ();
521 AUPlugin::discover_parameters ()
523 /* discover writable parameters */
525 AudioUnitScope scopes[] = {
526 kAudioUnitScope_Global,
527 kAudioUnitScope_Output,
528 kAudioUnitScope_Input
531 descriptors.clear ();
533 for (uint32_t i = 0; i < sizeof (scopes) / sizeof (scopes[0]); ++i) {
535 AUParamInfo param_info (unit->AU(), false, false, scopes[i]);
537 for (uint32_t i = 0; i < param_info.NumParams(); ++i) {
539 AUParameterDescriptor d;
541 d.id = param_info.ParamID (i);
543 const CAAUParameter* param = param_info.GetParamInfo (d.id);
544 const AudioUnitParameterInfo& info (param->ParamInfo());
546 const int len = CFStringGetLength (param->GetName());;
547 char local_buffer[len*2];
548 Boolean good = CFStringGetCString(param->GetName(),local_buffer,len*2,kCFStringEncodingMacRoman);
552 d.label = local_buffer;
555 d.scope = param_info.GetScope ();
556 d.element = param_info.GetElement ();
558 /* info.units to consider */
560 kAudioUnitParameterUnit_Generic = 0
561 kAudioUnitParameterUnit_Indexed = 1
562 kAudioUnitParameterUnit_Boolean = 2
563 kAudioUnitParameterUnit_Percent = 3
564 kAudioUnitParameterUnit_Seconds = 4
565 kAudioUnitParameterUnit_SampleFrames = 5
566 kAudioUnitParameterUnit_Phase = 6
567 kAudioUnitParameterUnit_Rate = 7
568 kAudioUnitParameterUnit_Hertz = 8
569 kAudioUnitParameterUnit_Cents = 9
570 kAudioUnitParameterUnit_RelativeSemiTones = 10
571 kAudioUnitParameterUnit_MIDINoteNumber = 11
572 kAudioUnitParameterUnit_MIDIController = 12
573 kAudioUnitParameterUnit_Decibels = 13
574 kAudioUnitParameterUnit_LinearGain = 14
575 kAudioUnitParameterUnit_Degrees = 15
576 kAudioUnitParameterUnit_EqualPowerCrossfade = 16
577 kAudioUnitParameterUnit_MixerFaderCurve1 = 17
578 kAudioUnitParameterUnit_Pan = 18
579 kAudioUnitParameterUnit_Meters = 19
580 kAudioUnitParameterUnit_AbsoluteCents = 20
581 kAudioUnitParameterUnit_Octaves = 21
582 kAudioUnitParameterUnit_BPM = 22
583 kAudioUnitParameterUnit_Beats = 23
584 kAudioUnitParameterUnit_Milliseconds = 24
585 kAudioUnitParameterUnit_Ratio = 25
588 /* info.flags to consider */
592 kAudioUnitParameterFlag_CFNameRelease = (1L << 4)
593 kAudioUnitParameterFlag_HasClump = (1L << 20)
594 kAudioUnitParameterFlag_HasName = (1L << 21)
595 kAudioUnitParameterFlag_DisplayLogarithmic = (1L << 22)
596 kAudioUnitParameterFlag_IsHighResolution = (1L << 23)
597 kAudioUnitParameterFlag_NonRealTime = (1L << 24)
598 kAudioUnitParameterFlag_CanRamp = (1L << 25)
599 kAudioUnitParameterFlag_ExpertMode = (1L << 26)
600 kAudioUnitParameterFlag_HasCFNameString = (1L << 27)
601 kAudioUnitParameterFlag_IsGlobalMeta = (1L << 28)
602 kAudioUnitParameterFlag_IsElementMeta = (1L << 29)
603 kAudioUnitParameterFlag_IsReadable = (1L << 30)
604 kAudioUnitParameterFlag_IsWritable = (1L << 31)
607 d.lower = info.minValue;
608 d.upper = info.maxValue;
609 d.default_value = info.defaultValue;
611 d.integer_step = (info.unit == kAudioUnitParameterUnit_Indexed);
612 d.toggled = (info.unit == kAudioUnitParameterUnit_Boolean) ||
613 (d.integer_step && ((d.upper - d.lower) == 1.0));
614 d.sr_dependent = (info.unit == kAudioUnitParameterUnit_SampleFrames);
615 d.automatable = !d.toggled &&
616 !(info.flags & kAudioUnitParameterFlag_NonRealTime) &&
617 (info.flags & kAudioUnitParameterFlag_IsWritable);
619 d.logarithmic = (info.flags & kAudioUnitParameterFlag_DisplayLogarithmic);
625 d.min_unbound = 0; // lower is bound
626 d.max_unbound = 0; // upper is bound
628 descriptors.push_back (d);
630 uint32_t last_param = descriptors.size() - 1;
631 parameter_map.insert (pair<uint32_t,uint32_t> (d.id, last_param));
632 listen_to_parameter (last_param);
639 four_ints_to_four_byte_literal (unsigned char n[4])
641 /* this is actually implementation dependent. sigh. this is what gcc
642 and quite a few others do.
644 return ((n[0] << 24) + (n[1] << 16) + (n[2] << 8) + n[3]);
648 AUPlugin::maybe_fix_broken_au_id (const std::string& id)
650 if (isdigit (id[0])) {
654 /* ID format is xxxx-xxxx-xxxx
655 where x maybe \xNN or a printable character.
657 Split at the '-' and and process each part into an integer.
658 Then put it back together.
662 unsigned char nascent[4];
663 const char* cstr = id.c_str();
664 const char* estr = cstr + id.size();
675 while (*cstr && next_int < 4) {
679 if (estr - cstr < 3) {
681 /* too close to the end for \xNN parsing: treat as literal characters */
683 cerr << "Parse " << cstr << " as a literal \\" << endl;
690 if (cstr[1] == 'x' && isxdigit (cstr[2]) && isxdigit (cstr[3])) {
694 memcpy (short_buf, &cstr[2], 2);
695 nascent[in] = strtol (short_buf, NULL, 16);
701 /* treat as literal characters */
702 cerr << "Parse " << cstr << " as a literal \\" << endl;
716 if (in && (in % 4 == 0)) {
717 /* nascent is ready */
718 n[next_int] = four_ints_to_four_byte_literal (nascent);
722 /* swallow space-hyphen-space */
736 s << n[0] << '-' << n[1] << '-' << n[2];
745 AUPlugin::unique_id () const
747 return AUPluginInfo::stringify_descriptor (comp->Desc());
751 AUPlugin::label () const
753 return _info->name.c_str();
757 AUPlugin::parameter_count () const
759 return descriptors.size();
763 AUPlugin::default_value (uint32_t port)
765 if (port < descriptors.size()) {
766 return descriptors[port].default_value;
773 AUPlugin::signal_latency () const
775 return unit->Latency() * _session.frame_rate();
779 AUPlugin::set_parameter (uint32_t which, float val)
781 if (which >= descriptors.size()) {
785 const AUParameterDescriptor& d (descriptors[which]);
786 DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("set parameter %1 in scope %2 element %3 to %4\n", d.id, d.scope, d.element, val));
787 unit->SetParameter (d.id, d.scope, d.element, val);
789 /* tell the world what we did */
791 AudioUnitEvent theEvent;
793 theEvent.mEventType = kAudioUnitEvent_ParameterValueChange;
794 theEvent.mArgument.mParameter.mAudioUnit = unit->AU();
795 theEvent.mArgument.mParameter.mParameterID = d.id;
796 theEvent.mArgument.mParameter.mScope = d.scope;
797 theEvent.mArgument.mParameter.mElement = d.element;
799 DEBUG_TRACE (DEBUG::AudioUnits, "notify about parameter change\n");
800 AUEventListenerNotify (NULL, NULL, &theEvent);
802 Plugin::set_parameter (which, val);
806 AUPlugin::get_parameter (uint32_t which) const
809 if (which < descriptors.size()) {
810 const AUParameterDescriptor& d (descriptors[which]);
811 DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("get value of parameter %1 in scope %2 element %3\n", d.id, d.scope, d.element));
812 unit->GetParameter(d.id, d.scope, d.element, val);
818 AUPlugin::get_parameter_descriptor (uint32_t which, ParameterDescriptor& pd) const
820 if (which < descriptors.size()) {
821 pd = descriptors[which];
828 AUPlugin::nth_parameter (uint32_t which, bool& ok) const
830 if (which < descriptors.size()) {
839 AUPlugin::activate ()
843 DEBUG_TRACE (DEBUG::AudioUnits, "call Initialize in activate()\n");
844 if ((err = unit->Initialize()) != noErr) {
845 error << string_compose (_("AUPlugin: %1 cannot initialize plugin (err = %2)"), name(), err) << endmsg;
847 frames_processed = 0;
854 AUPlugin::deactivate ()
856 DEBUG_TRACE (DEBUG::AudioUnits, "call Uninitialize in deactivate()\n");
857 unit->Uninitialize ();
864 DEBUG_TRACE (DEBUG::AudioUnits, "call Reset in flush()\n");
865 unit->GlobalReset ();
869 AUPlugin::requires_fixed_size_buffers() const
871 return _requires_fixed_size_buffers;
876 AUPlugin::set_block_size (pframes_t nframes)
878 bool was_initialized = initialized;
879 UInt32 numFrames = nframes;
886 DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("set MaximumFramesPerSlice in global scope to %1\n", numFrames));
887 if ((err = unit->SetProperty (kAudioUnitProperty_MaximumFramesPerSlice, kAudioUnitScope_Global,
888 0, &numFrames, sizeof (numFrames))) != noErr) {
889 cerr << "cannot set max frames (err = " << err << ')' << endl;
893 if (was_initialized) {
897 _current_block_size = nframes;
903 AUPlugin::configure_io (ChanCount in, ChanCount out)
905 AudioStreamBasicDescription streamFormat;
906 bool was_initialized = initialized;
907 int32_t audio_in = in.n_audio();
908 int32_t audio_out = out.n_audio();
910 DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("configure %1 for %2 in %3 out\n", name(), in, out));
913 //if we are already running with the requested i/o config, bail out here
914 if ( (audio_in==input_channels) && (audio_out==output_channels) ) {
921 streamFormat.mSampleRate = _session.frame_rate();
922 streamFormat.mFormatID = kAudioFormatLinearPCM;
923 streamFormat.mFormatFlags = kAudioFormatFlagIsFloat|kAudioFormatFlagIsPacked|kAudioFormatFlagIsNonInterleaved;
925 #ifdef __LITTLE_ENDIAN__
928 streamFormat.mFormatFlags |= kAudioFormatFlagIsBigEndian;
931 streamFormat.mBitsPerChannel = 32;
932 streamFormat.mFramesPerPacket = 1;
934 /* apple says that for non-interleaved data, these
935 values always refer to a single channel.
937 streamFormat.mBytesPerPacket = 4;
938 streamFormat.mBytesPerFrame = 4;
940 streamFormat.mChannelsPerFrame = audio_in;
942 if (set_input_format (streamFormat) != 0) {
946 streamFormat.mChannelsPerFrame = audio_out;
948 if (set_output_format (streamFormat) != 0) {
952 /* reset plugin info to show currently configured state */
954 _info->n_inputs = in;
955 _info->n_outputs = out;
957 if (was_initialized) {
965 AUPlugin::input_streams() const
969 c.set (DataType::AUDIO, 1);
970 c.set (DataType::MIDI, 0);
972 if (input_channels < 0) {
973 warning << string_compose (_("AUPlugin: %1 input_streams() called without any format set!"), name()) << endmsg;
975 c.set (DataType::AUDIO, input_channels);
976 c.set (DataType::MIDI, _has_midi_input ? 1 : 0);
984 AUPlugin::output_streams() const
988 c.set (DataType::AUDIO, 1);
989 c.set (DataType::MIDI, 0);
991 if (output_channels < 0) {
992 warning << string_compose (_("AUPlugin: %1 output_streams() called without any format set!"), name()) << endmsg;
994 c.set (DataType::AUDIO, output_channels);
995 c.set (DataType::MIDI, _has_midi_output ? 1 : 0);
1002 AUPlugin::can_support_io_configuration (const ChanCount& in, ChanCount& out) const
1004 // Note: We never attempt to multiply-instantiate plugins to meet io configurations.
1006 int32_t audio_in = in.n_audio();
1009 AUPluginInfoPtr pinfo = boost::dynamic_pointer_cast<AUPluginInfo>(get_info());
1011 /* lets check MIDI first */
1013 if (in.n_midi() > 0) {
1014 if (!_has_midi_input) {
1019 vector<pair<int,int> >& io_configs = pinfo->cache.io_configs;
1021 DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1 has %2 IO configurations\n", name(), io_configs.size()));
1023 //Ardour expects the plugin to tell it the output
1024 //configuration but AU plugins can have multiple I/O
1025 //configurations in most cases. so first lets see
1026 //if there's a configuration that keeps out==in
1028 audio_out = audio_in;
1030 for (vector<pair<int,int> >::iterator i = io_configs.begin(); i != io_configs.end(); ++i) {
1032 int32_t possible_in = i->first;
1033 int32_t possible_out = i->second;
1035 if ((possible_in == audio_in) && (possible_out == audio_out)) {
1036 DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("\tCHOSEN: in %1 out %2\n", in, out));
1041 /* now allow potentially "imprecise" matches */
1045 for (vector<pair<int,int> >::iterator i = io_configs.begin(); i != io_configs.end(); ++i) {
1047 int32_t possible_in = i->first;
1048 int32_t possible_out = i->second;
1050 DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("\tpossible in %1 possible out %2\n", possible_in, possible_out));
1052 if (possible_out == 0) {
1053 warning << string_compose (_("AU %1 has zero outputs - configuration ignored"), name()) << endmsg;
1054 /* XXX surely this is just a send? (e.g. AUNetSend) */
1058 if (possible_in == 0) {
1060 /* instrument plugin, always legal but throws away inputs ...
1063 if (possible_out == -1) {
1064 /* any configuration possible, provide stereo output */
1067 } else if (possible_out == -2) {
1068 /* plugins shouldn't really use (0,-2) but might.
1069 any configuration possible, provide stereo output
1073 } else if (possible_out < -2) {
1074 /* explicitly variable number of outputs, pick maximum */
1075 audio_out = -possible_out;
1078 /* exact number of outputs */
1079 audio_out = possible_out;
1084 if (possible_in == -1) {
1086 /* wildcard for input */
1088 if (possible_out == -1) {
1089 /* out much match in */
1090 audio_out = audio_in;
1092 } else if (possible_out == -2) {
1093 /* any configuration possible, pick matching */
1094 audio_out = audio_in;
1096 } else if (possible_out < -2) {
1097 /* explicitly variable number of outputs, pick maximum */
1098 audio_out = -possible_out;
1101 /* exact number of outputs */
1102 audio_out = possible_out;
1107 if (possible_in == -2) {
1109 if (possible_out == -1) {
1110 /* any configuration possible, pick matching */
1111 audio_out = audio_in;
1113 } else if (possible_out == -2) {
1114 /* plugins shouldn't really use (-2,-2) but might.
1115 interpret as (-1,-1).
1117 audio_out = audio_in;
1119 } else if (possible_out < -2) {
1120 /* explicitly variable number of outputs, pick maximum */
1121 audio_out = -possible_out;
1124 /* exact number of outputs */
1125 audio_out = possible_out;
1130 if (possible_in < -2) {
1132 /* explicit variable number of inputs */
1134 if (audio_in > -possible_in) {
1135 /* request is too large */
1138 if (possible_out == -1) {
1139 /* any output configuration possible, provide stereo out */
1142 } else if (possible_out == -2) {
1143 /* plugins shouldn't really use (<-2,-2) but might.
1144 interpret as (<-2,-1): any configuration possible, provide stereo output
1148 } else if (possible_out < -2) {
1149 /* explicitly variable number of outputs, pick maximum */
1150 audio_out = -possible_out;
1153 /* exact number of outputs */
1154 audio_out = possible_out;
1159 if (possible_in && (possible_in == audio_in)) {
1161 /* exact number of inputs ... must match obviously */
1163 if (possible_out == -1) {
1164 /* any output configuration possible, provide stereo output */
1167 } else if (possible_out == -2) {
1168 /* plugins shouldn't really use (>0,-2) but might.
1169 interpret as (>0,-1):
1170 any output configuration possible, provide stereo output
1174 } else if (possible_out < -2) {
1175 /* explicitly variable number of outputs, pick maximum */
1176 audio_out = -possible_out;
1179 /* exact number of outputs */
1180 audio_out = possible_out;
1192 DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("\tCHOSEN: in %1 out %2\n", in, out));
1194 DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("\tFAIL: no io configs match %1\n", in));
1198 out.set (DataType::MIDI, 0);
1199 out.set (DataType::AUDIO, audio_out);
1205 AUPlugin::set_input_format (AudioStreamBasicDescription& fmt)
1207 return set_stream_format (kAudioUnitScope_Input, input_elements, fmt);
1211 AUPlugin::set_output_format (AudioStreamBasicDescription& fmt)
1213 if (set_stream_format (kAudioUnitScope_Output, output_elements, fmt) != 0) {
1222 buffers = (AudioBufferList *) malloc (offsetof(AudioBufferList, mBuffers) +
1223 fmt.mChannelsPerFrame * sizeof(::AudioBuffer));
1229 AUPlugin::set_stream_format (int scope, uint32_t cnt, AudioStreamBasicDescription& fmt)
1233 for (uint32_t i = 0; i < cnt; ++i) {
1234 DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("set stream format for %1, scope = %2 element %3\n",
1235 (scope == kAudioUnitScope_Input ? "input" : "output"),
1237 if ((result = unit->SetFormat (scope, i, fmt)) != 0) {
1238 error << string_compose (_("AUPlugin: could not set stream format for %1/%2 (err = %3)"),
1239 (scope == kAudioUnitScope_Input ? "input" : "output"), i, result) << endmsg;
1244 if (scope == kAudioUnitScope_Input) {
1245 input_channels = fmt.mChannelsPerFrame;
1247 output_channels = fmt.mChannelsPerFrame;
1254 AUPlugin::render_callback(AudioUnitRenderActionFlags*,
1255 const AudioTimeStamp*,
1257 UInt32 inNumberFrames,
1258 AudioBufferList* ioData)
1260 /* not much to do with audio - the data is already in the buffers given to us in connect_and_run() */
1262 DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1: render callback, frames %2 bufs %3\n",
1263 name(), inNumberFrames, ioData->mNumberBuffers));
1265 if (input_maxbuf == 0) {
1266 error << _("AUPlugin: render callback called illegally!") << endmsg;
1267 return kAudioUnitErr_CannotDoInCurrentContext;
1269 uint32_t limit = min ((uint32_t) ioData->mNumberBuffers, input_maxbuf);
1271 for (uint32_t i = 0; i < limit; ++i) {
1272 ioData->mBuffers[i].mNumberChannels = 1;
1273 ioData->mBuffers[i].mDataByteSize = sizeof (Sample) * inNumberFrames;
1275 /* we don't use the channel mapping because audiounits are
1276 never replicated. one plugin instance uses all channels/buffers
1277 passed to PluginInsert::connect_and_run()
1280 ioData->mBuffers[i].mData = input_buffers->get_audio (i).data (cb_offset + input_offset);
1283 cb_offset += inNumberFrames;
1289 AUPlugin::connect_and_run (BufferSet& bufs, ChanMapping in_map, ChanMapping out_map, pframes_t nframes, framecnt_t offset)
1291 Plugin::connect_and_run (bufs, in_map, out_map, nframes, offset);
1293 AudioUnitRenderActionFlags flags = 0;
1297 if (requires_fixed_size_buffers() && (nframes != _last_nframes)) {
1298 unit->GlobalReset();
1299 _last_nframes = nframes;
1302 /* the apparent number of buffers matches our input configuration, but we know that the bufferset
1303 has the capacity to handle our outputs.
1305 assert (bufs.available() >= ChanCount (DataType::AUDIO, output_channels));
1307 input_buffers = &bufs;
1308 input_maxbuf = bufs.count().n_audio(); // number of input audio buffers
1309 input_offset = offset;
1312 DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1 in %2 out %3 MIDI %4 bufs %5 (available %6)\n",
1313 name(), input_channels, output_channels, _has_midi_input,
1314 bufs.count(), bufs.available()));
1316 buffers->mNumberBuffers = output_channels;
1318 for (uint32_t i = 0; i < output_channels; ++i) {
1319 buffers->mBuffers[i].mNumberChannels = 1;
1320 buffers->mBuffers[i].mDataByteSize = nframes * sizeof (Sample);
1321 /* setting this to 0 indicates to the AU that it can provide buffers here
1322 if necessary. if it can process in-place, it will use the buffers provided
1323 as input by ::render_callback() above. no documentation on what setting it
1324 to a non-null value means.
1326 buffers->mBuffers[i].mData = 0;
1329 if (_has_midi_input) {
1331 uint32_t nmidi = bufs.count().n_midi();
1333 for (uint32_t i = 0; i < nmidi; ++i) {
1335 /* one MIDI port/buffer only */
1337 MidiBuffer& m = bufs.get_midi (i);
1339 for (MidiBuffer::iterator i = m.begin(); i != m.end(); ++i) {
1340 Evoral::MIDIEvent<framepos_t> ev (*i);
1342 if (ev.is_channel_event()) {
1343 const uint8_t* b = ev.buffer();
1344 DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1: MIDI event %2\n", name(), ev));
1345 unit->MIDIEvent (b[0], b[1], b[2], ev.time());
1348 /* XXX need to handle sysex and other message types */
1353 /* does this really mean anything ?
1356 ts.mSampleTime = frames_processed;
1357 ts.mFlags = kAudioTimeStampSampleTimeValid;
1359 // DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1 render flags=%2 time=%3 nframes=%4 buffers=%5\n",
1360 // name(), flags, frames_processed, nframes, buffers->mNumberBuffers));
1362 if ((err = unit->Render (&flags, &ts, 0, nframes, buffers)) == noErr) {
1365 frames_processed += nframes;
1367 DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1 rendered %2 buffers of %3\n",
1368 name(), buffers->mNumberBuffers, output_channels));
1370 int32_t limit = min ((int32_t) buffers->mNumberBuffers, output_channels);
1373 for (i = 0; i < limit; ++i) {
1374 Sample* expected_buffer_address= bufs.get_audio (i).data (offset);
1375 if (expected_buffer_address != buffers->mBuffers[i].mData) {
1376 /* plugin provided its own buffer for output so copy it back to where we want it
1378 memcpy (expected_buffer_address, buffers->mBuffers[i].mData, nframes * sizeof (Sample));
1382 /* now silence any buffers that were passed in but the that the plugin
1383 did not fill/touch/use.
1386 for (;i < output_channels; ++i) {
1387 memset (bufs.get_audio (i).data (offset), 0, nframes * sizeof (Sample));
1393 cerr << name() << " render status " << err << endl;
1398 AUPlugin::get_beat_and_tempo_callback (Float64* outCurrentBeat,
1399 Float64* outCurrentTempo)
1401 TempoMap& tmap (_session.tempo_map());
1403 DEBUG_TRACE (DEBUG::AudioUnits, "AU calls ardour beat&tempo callback\n");
1405 /* more than 1 meter or more than 1 tempo means that a simplistic computation
1406 (and interpretation) of a beat position will be incorrect. So refuse to
1410 if (tmap.n_tempos() > 1 || tmap.n_meters() > 1) {
1411 return kAudioUnitErr_CannotDoInCurrentContext;
1414 Timecode::BBT_Time bbt;
1415 TempoMetric metric = tmap.metric_at (_session.transport_frame() + input_offset);
1416 tmap.bbt_time_with_metric (_session.transport_frame() + input_offset, bbt, metric);
1418 if (outCurrentBeat) {
1420 beat = metric.meter().beats_per_bar() * bbt.bars;
1422 beat += bbt.ticks / Timecode::BBT_Time::ticks_per_beat;
1423 *outCurrentBeat = beat;
1426 if (outCurrentTempo) {
1427 *outCurrentTempo = floor (metric.tempo().beats_per_minute());
1435 AUPlugin::get_musical_time_location_callback (UInt32* outDeltaSampleOffsetToNextBeat,
1436 Float32* outTimeSig_Numerator,
1437 UInt32* outTimeSig_Denominator,
1438 Float64* outCurrentMeasureDownBeat)
1440 TempoMap& tmap (_session.tempo_map());
1442 DEBUG_TRACE (DEBUG::AudioUnits, "AU calls ardour music time location callback\n");
1444 /* more than 1 meter or more than 1 tempo means that a simplistic computation
1445 (and interpretation) of a beat position will be incorrect. So refuse to
1449 if (tmap.n_tempos() > 1 || tmap.n_meters() > 1) {
1450 return kAudioUnitErr_CannotDoInCurrentContext;
1453 Timecode::BBT_Time bbt;
1454 TempoMetric metric = tmap.metric_at (_session.transport_frame() + input_offset);
1455 tmap.bbt_time_with_metric (_session.transport_frame() + input_offset, bbt, metric);
1457 if (outDeltaSampleOffsetToNextBeat) {
1458 if (bbt.ticks == 0) {
1460 *outDeltaSampleOffsetToNextBeat = 0;
1462 *outDeltaSampleOffsetToNextBeat = (UInt32)
1463 floor (((Timecode::BBT_Time::ticks_per_beat - bbt.ticks)/Timecode::BBT_Time::ticks_per_beat) * // fraction of a beat to next beat
1464 metric.tempo().frames_per_beat(_session.frame_rate(), metric.meter())); // frames per beat
1468 if (outTimeSig_Numerator) {
1469 *outTimeSig_Numerator = (UInt32) lrintf (metric.meter().beats_per_bar());
1471 if (outTimeSig_Denominator) {
1472 *outTimeSig_Denominator = (UInt32) lrintf (metric.meter().note_divisor());
1475 if (outCurrentMeasureDownBeat) {
1477 /* beat for the start of the bar.
1479 2|1|0 -> 1 + beats_per_bar
1480 3|1|0 -> 1 + (2 * beats_per_bar)
1484 *outCurrentMeasureDownBeat = 1 + metric.meter().beats_per_bar() * (bbt.bars - 1);
1491 AUPlugin::get_transport_state_callback (Boolean* outIsPlaying,
1492 Boolean* outTransportStateChanged,
1493 Float64* outCurrentSampleInTimeLine,
1494 Boolean* outIsCycling,
1495 Float64* outCycleStartBeat,
1496 Float64* outCycleEndBeat)
1501 DEBUG_TRACE (DEBUG::AudioUnits, "AU calls ardour transport state callback\n");
1503 rolling = _session.transport_rolling();
1504 speed = _session.transport_speed ();
1507 *outIsPlaying = _session.transport_rolling();
1510 if (outTransportStateChanged) {
1511 if (rolling != last_transport_rolling) {
1512 *outTransportStateChanged = true;
1513 } else if (speed != last_transport_speed) {
1514 *outTransportStateChanged = true;
1516 *outTransportStateChanged = false;
1520 if (outCurrentSampleInTimeLine) {
1521 /* this assumes that the AU can only call this host callback from render context,
1522 where input_offset is valid.
1524 *outCurrentSampleInTimeLine = _session.transport_frame() + input_offset;
1528 Location* loc = _session.locations()->auto_loop_location();
1530 *outIsCycling = (loc && _session.transport_rolling() && _session.get_play_loop());
1532 if (*outIsCycling) {
1534 if (outCycleStartBeat || outCycleEndBeat) {
1536 TempoMap& tmap (_session.tempo_map());
1538 /* more than 1 meter means that a simplistic computation (and interpretation) of
1539 a beat position will be incorrect. so refuse to offer the value.
1542 if (tmap.n_meters() > 1) {
1543 return kAudioUnitErr_CannotDoInCurrentContext;
1546 Timecode::BBT_Time bbt;
1548 if (outCycleStartBeat) {
1549 TempoMetric metric = tmap.metric_at (loc->start() + input_offset);
1550 _session.tempo_map().bbt_time_with_metric (loc->start(), bbt, metric);
1553 beat = metric.meter().beats_per_bar() * bbt.bars;
1555 beat += bbt.ticks / Timecode::BBT_Time::ticks_per_beat;
1557 *outCycleStartBeat = beat;
1560 if (outCycleEndBeat) {
1561 TempoMetric metric = tmap.metric_at (loc->end() + input_offset);
1562 _session.tempo_map().bbt_time_with_metric (loc->end(), bbt, metric);
1565 beat = metric.meter().beats_per_bar() * bbt.bars;
1567 beat += bbt.ticks / Timecode::BBT_Time::ticks_per_beat;
1569 *outCycleEndBeat = beat;
1575 last_transport_rolling = rolling;
1576 last_transport_speed = speed;
1581 set<Evoral::Parameter>
1582 AUPlugin::automatable() const
1584 set<Evoral::Parameter> automates;
1586 for (uint32_t i = 0; i < descriptors.size(); ++i) {
1587 if (descriptors[i].automatable) {
1588 automates.insert (automates.end(), Evoral::Parameter (PluginAutomation, 0, i));
1596 AUPlugin::describe_parameter (Evoral::Parameter param)
1598 if (param.type() == PluginAutomation && param.id() < parameter_count()) {
1599 return descriptors[param.id()].label;
1606 AUPlugin::print_parameter (uint32_t /*param*/, char* /*buf*/, uint32_t /*len*/) const
1608 // NameValue stuff here
1612 AUPlugin::parameter_is_audio (uint32_t) const
1618 AUPlugin::parameter_is_control (uint32_t) const
1624 AUPlugin::parameter_is_input (uint32_t) const
1630 AUPlugin::parameter_is_output (uint32_t) const
1636 AUPlugin::add_state (XMLNode* root) const
1638 LocaleGuard lg (X_("POSIX"));
1640 #ifdef AU_STATE_SUPPORT
1642 CFPropertyListRef propertyList;
1644 DEBUG_TRACE (DEBUG::AudioUnits, "get preset state\n");
1645 if (unit->GetAUPreset (propertyList) != noErr) {
1649 // Convert the property list into XML data.
1651 xmlData = CFPropertyListCreateXMLData( kCFAllocatorDefault, propertyList);
1654 error << _("Could not create XML version of property list") << endmsg;
1658 /* re-parse XML bytes to create a libxml++ XMLTree that we can merge into
1659 our state node. GACK!
1664 if (t.read_buffer (string ((const char*) CFDataGetBytePtr (xmlData), CFDataGetLength (xmlData)))) {
1666 root->add_child_copy (*t.root());
1670 CFRelease (xmlData);
1671 CFRelease (propertyList);
1673 if (!seen_get_state_message) {
1674 info << string_compose (_("Saving AudioUnit settings is not supported in this build of %1. Consider paying for a newer version"),
1677 seen_get_state_message = true;
1683 AUPlugin::set_state(const XMLNode& node, int version)
1685 #ifdef AU_STATE_SUPPORT
1687 CFPropertyListRef propertyList;
1688 LocaleGuard lg (X_("POSIX"));
1690 if (node.name() != state_node_name()) {
1691 error << _("Bad node sent to AUPlugin::set_state") << endmsg;
1695 if (node.children().empty()) {
1699 XMLNode* top = node.children().front();
1700 XMLNode* copy = new XMLNode (*top);
1705 const string& xml = t.write_buffer ();
1706 CFDataRef xmlData = CFDataCreateWithBytesNoCopy (kCFAllocatorDefault, (UInt8*) xml.data(), xml.length(), kCFAllocatorNull);
1707 CFStringRef errorString;
1709 propertyList = CFPropertyListCreateFromXMLData( kCFAllocatorDefault,
1711 kCFPropertyListImmutable,
1714 CFRelease (xmlData);
1717 DEBUG_TRACE (DEBUG::AudioUnits, "set preset\n");
1718 if (unit->SetAUPreset (propertyList) == noErr) {
1721 /* tell the world */
1723 AudioUnitParameter changedUnit;
1724 changedUnit.mAudioUnit = unit->AU();
1725 changedUnit.mParameterID = kAUParameterListener_AnyParameter;
1726 AUParameterListenerNotify (NULL, NULL, &changedUnit);
1728 CFRelease (propertyList);
1731 Plugin::set_state (node, version);
1734 if (!seen_set_state_message) {
1735 info << string_compose (_("Restoring AudioUnit settings is not supported in this build of %1. Consider paying for a newer version"),
1739 return Plugin::set_state (node, version);
1744 AUPlugin::load_preset (PresetRecord r)
1746 Plugin::load_preset (r);
1748 #ifdef AU_STATE_SUPPORT
1750 CFPropertyListRef propertyList;
1752 UserPresetMap::iterator ux;
1753 FactoryPresetMap::iterator fx;
1755 /* look first in "user" presets */
1757 if ((ux = user_preset_map.find (r.label)) != user_preset_map.end()) {
1759 if ((propertyList = load_property_list (ux->second)) != 0) {
1760 DEBUG_TRACE (DEBUG::AudioUnits, "set preset from user presets\n");
1761 if (unit->SetAUPreset (propertyList) == noErr) {
1764 /* tell the world */
1766 AudioUnitParameter changedUnit;
1767 changedUnit.mAudioUnit = unit->AU();
1768 changedUnit.mParameterID = kAUParameterListener_AnyParameter;
1769 AUParameterListenerNotify (NULL, NULL, &changedUnit);
1771 CFRelease(propertyList);
1774 } else if ((fx = factory_preset_map.find (r.label)) != factory_preset_map.end()) {
1778 preset.presetNumber = fx->second;
1779 preset.presetName = CFStringCreateWithCString (kCFAllocatorDefault, fx->first.c_str(), kCFStringEncodingUTF8);
1781 DEBUG_TRACE (DEBUG::AudioUnits, "set preset from factory presets\n");
1783 if (unit->SetPresentPreset (preset) == 0) {
1786 /* tell the world */
1788 AudioUnitParameter changedUnit;
1789 changedUnit.mAudioUnit = unit->AU();
1790 changedUnit.mParameterID = kAUParameterListener_AnyParameter;
1791 AUParameterListenerNotify (NULL, NULL, &changedUnit);
1797 if (!seen_loading_message) {
1798 info << string_compose (_("Loading AudioUnit presets is not supported in this build of %1. Consider paying for a newer version"),
1801 seen_loading_message = true;
1808 AUPlugin::do_remove_preset (std::string)
1813 AUPlugin::do_save_preset (string preset_name)
1815 #ifdef AU_STATE_SUPPORT
1816 CFPropertyListRef propertyList;
1817 vector<Glib::ustring> v;
1818 Glib::ustring user_preset_path;
1821 std::string m = maker();
1822 std::string n = name();
1824 strip_whitespace_edges (m);
1825 strip_whitespace_edges (n);
1827 v.push_back (Glib::get_home_dir());
1828 v.push_back ("Library");
1829 v.push_back ("Audio");
1830 v.push_back ("Presets");
1834 user_preset_path = Glib::build_filename (v);
1836 if (g_mkdir_with_parents (user_preset_path.c_str(), 0775) < 0) {
1837 error << string_compose (_("Cannot create user plugin presets folder (%1)"), user_preset_path) << endmsg;
1841 DEBUG_TRACE (DEBUG::AudioUnits, "get current preset\n");
1842 if (unit->GetAUPreset (propertyList) != noErr) {
1846 // add the actual preset name */
1848 v.push_back (preset_name + preset_suffix);
1852 user_preset_path = Glib::build_filename (v);
1854 set_preset_name_in_plist (propertyList, preset_name);
1856 if (save_property_list (propertyList, user_preset_path)) {
1857 error << string_compose (_("Saving plugin state to %1 failed"), user_preset_path) << endmsg;
1861 CFRelease(propertyList);
1863 return string ("file:///") + user_preset_path;
1865 if (!seen_saving_message) {
1866 info << string_compose (_("Saving AudioUnit presets is not supported in this build of %1. Consider paying for a newer version"),
1869 seen_saving_message = true;
1875 //-----------------------------------------------------------------------------
1876 // this is just a little helper function used by GetAUComponentDescriptionFromPresetFile()
1878 GetDictionarySInt32Value(CFDictionaryRef inAUStateDictionary, CFStringRef inDictionaryKey, Boolean * outSuccess)
1880 CFNumberRef cfNumber;
1881 SInt32 numberValue = 0;
1882 Boolean dummySuccess;
1884 if (outSuccess == NULL)
1885 outSuccess = &dummySuccess;
1886 if ( (inAUStateDictionary == NULL) || (inDictionaryKey == NULL) )
1888 *outSuccess = FALSE;
1892 cfNumber = (CFNumberRef) CFDictionaryGetValue(inAUStateDictionary, inDictionaryKey);
1893 if (cfNumber == NULL)
1895 *outSuccess = FALSE;
1898 *outSuccess = CFNumberGetValue(cfNumber, kCFNumberSInt32Type, &numberValue);
1906 GetAUComponentDescriptionFromStateData(CFPropertyListRef inAUStateData, ComponentDescription * outComponentDescription)
1908 CFDictionaryRef auStateDictionary;
1909 ComponentDescription tempDesc = {0,0,0,0,0};
1910 SInt32 versionValue;
1913 if ( (inAUStateData == NULL) || (outComponentDescription == NULL) )
1916 // the property list for AU state data must be of the dictionary type
1917 if (CFGetTypeID(inAUStateData) != CFDictionaryGetTypeID()) {
1918 return kAudioUnitErr_InvalidPropertyValue;
1921 auStateDictionary = (CFDictionaryRef)inAUStateData;
1923 // first check to make sure that the version of the AU state data is one that we know understand
1924 // XXX should I really do this? later versions would probably still hold these ID keys, right?
1925 versionValue = GetDictionarySInt32Value(auStateDictionary, CFSTR(kAUPresetVersionKey), &gotValue);
1928 return kAudioUnitErr_InvalidPropertyValue;
1930 #define kCurrentSavedStateVersion 0
1931 if (versionValue != kCurrentSavedStateVersion) {
1932 return kAudioUnitErr_InvalidPropertyValue;
1935 // grab the ComponentDescription values from the AU state data
1936 tempDesc.componentType = (OSType) GetDictionarySInt32Value(auStateDictionary, CFSTR(kAUPresetTypeKey), NULL);
1937 tempDesc.componentSubType = (OSType) GetDictionarySInt32Value(auStateDictionary, CFSTR(kAUPresetSubtypeKey), NULL);
1938 tempDesc.componentManufacturer = (OSType) GetDictionarySInt32Value(auStateDictionary, CFSTR(kAUPresetManufacturerKey), NULL);
1939 // zero values are illegit for specific ComponentDescriptions, so zero for any value means that there was an error
1940 if ( (tempDesc.componentType == 0) || (tempDesc.componentSubType == 0) || (tempDesc.componentManufacturer == 0) )
1941 return kAudioUnitErr_InvalidPropertyValue;
1943 *outComponentDescription = tempDesc;
1948 static bool au_preset_filter (const string& str, void* arg)
1950 /* Not a dotfile, has a prefix before a period, suffix is aupreset */
1954 ret = (str[0] != '.' && str.length() > 9 && str.find (preset_suffix) == (str.length() - preset_suffix.length()));
1958 /* check the preset file path name against this plugin
1959 ID. The idea is that all preset files for this plugin
1960 include "<manufacturer>/<plugin-name>" in their path.
1963 Plugin* p = (Plugin *) arg;
1964 string match = p->maker();
1968 ret = str.find (match) != string::npos;
1971 string m = p->maker ();
1972 string n = p->name ();
1973 strip_whitespace_edges (m);
1974 strip_whitespace_edges (n);
1979 ret = str.find (match) != string::npos;
1987 check_and_get_preset_name (Component component, const string& pathstr, string& preset_name)
1990 CFPropertyListRef plist;
1991 ComponentDescription presetDesc;
1994 plist = load_property_list (pathstr);
2000 // get the ComponentDescription from the AU preset file
2002 status = GetAUComponentDescriptionFromStateData(plist, &presetDesc);
2004 if (status == noErr) {
2005 if (ComponentAndDescriptionMatch_Loosely(component, &presetDesc)) {
2007 /* try to get the preset name from the property list */
2009 if (CFGetTypeID(plist) == CFDictionaryGetTypeID()) {
2011 const void* psk = CFDictionaryGetValue ((CFMutableDictionaryRef)plist, CFSTR(kAUPresetNameKey));
2015 const char* p = CFStringGetCStringPtr ((CFStringRef) psk, kCFStringEncodingUTF8);
2018 char buf[PATH_MAX+1];
2020 if (CFStringGetCString ((CFStringRef)psk, buf, sizeof (buf), kCFStringEncodingUTF8)) {
2035 AUPlugin::current_preset() const
2039 #ifdef AU_STATE_SUPPORT
2040 CFPropertyListRef propertyList;
2042 DEBUG_TRACE (DEBUG::AudioUnits, "get current preset for current_preset()\n");
2043 if (unit->GetAUPreset (propertyList) == noErr) {
2044 preset_name = get_preset_name_in_plist (propertyList);
2045 CFRelease(propertyList);
2052 AUPlugin::find_presets ()
2054 #ifdef AU_STATE_SUPPORT
2055 vector<string*>* preset_files;
2056 PathScanner scanner;
2058 user_preset_map.clear ();
2060 preset_files = scanner (preset_search_path, au_preset_filter, this, true, true, -1, true);
2062 if (!preset_files) {
2066 for (vector<string*>::iterator x = preset_files->begin(); x != preset_files->end(); ++x) {
2068 string path = *(*x);
2071 /* make an initial guess at the preset name using the path */
2073 preset_name = Glib::path_get_basename (path);
2074 preset_name = preset_name.substr (0, preset_name.find_last_of ('.'));
2076 /* check that this preset file really matches this plugin
2077 and potentially get the "real" preset name from
2081 if (check_and_get_preset_name (get_comp()->Comp(), path, preset_name)) {
2082 user_preset_map[preset_name] = path;
2088 delete preset_files;
2090 /* now fill the vector<string> with the names we have */
2092 for (UserPresetMap::iterator i = user_preset_map.begin(); i != user_preset_map.end(); ++i) {
2093 _presets.insert (make_pair (i->second, Plugin::PresetRecord (i->second, i->first)));
2096 /* add factory presets */
2098 for (FactoryPresetMap::iterator i = factory_preset_map.begin(); i != factory_preset_map.end(); ++i) {
2100 string const uri = string_compose ("%1", _presets.size ());
2101 _presets.insert (make_pair (uri, Plugin::PresetRecord (uri, i->first)));
2108 AUPlugin::has_editor () const
2110 // even if the plugin doesn't have its own editor, the AU API can be used
2111 // to create one that looks native.
2115 AUPluginInfo::AUPluginInfo (boost::shared_ptr<CAComponentDescription> d)
2118 type = ARDOUR::AudioUnit;
2121 AUPluginInfo::~AUPluginInfo ()
2123 type = ARDOUR::AudioUnit;
2127 AUPluginInfo::load (Session& session)
2132 DEBUG_TRACE (DEBUG::AudioUnits, "load AU as a component\n");
2133 boost::shared_ptr<CAComponent> comp (new CAComponent(*descriptor));
2135 if (!comp->IsValid()) {
2136 error << ("AudioUnit: not a valid Component") << endmsg;
2138 plugin.reset (new AUPlugin (session.engine(), session, comp));
2141 AUPluginInfo *aup = new AUPluginInfo (*this);
2142 DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("plugin info for %1 = %2\n", this, aup));
2143 plugin->set_info (PluginInfoPtr (aup));
2144 boost::dynamic_pointer_cast<AUPlugin> (plugin)->set_fixed_size_buffers (aup->creator == "Universal Audio");
2148 catch (failed_constructor &err) {
2149 DEBUG_TRACE (DEBUG::AudioUnits, "failed to load component/plugin\n");
2150 return PluginPtr ();
2155 AUPluginInfo::au_cache_path ()
2157 return Glib::build_filename (ARDOUR::user_config_directory().to_string(), "au_cache");
2161 AUPluginInfo::discover ()
2165 if (!Glib::file_test (au_cache_path(), Glib::FILE_TEST_EXISTS)) {
2166 ARDOUR::BootMessage (_("Discovering AudioUnit plugins (could take some time ...)"));
2169 PluginInfoList* plugs = new PluginInfoList;
2171 discover_fx (*plugs);
2172 discover_music (*plugs);
2173 discover_generators (*plugs);
2174 discover_instruments (*plugs);
2176 DEBUG_TRACE (DEBUG::PluginManager, string_compose ("AU: discovered %1 plugins\n", plugs->size()));
2182 AUPluginInfo::discover_music (PluginInfoList& plugs)
2184 CAComponentDescription desc;
2185 desc.componentFlags = 0;
2186 desc.componentFlagsMask = 0;
2187 desc.componentSubType = 0;
2188 desc.componentManufacturer = 0;
2189 desc.componentType = kAudioUnitType_MusicEffect;
2191 discover_by_description (plugs, desc);
2195 AUPluginInfo::discover_fx (PluginInfoList& plugs)
2197 CAComponentDescription desc;
2198 desc.componentFlags = 0;
2199 desc.componentFlagsMask = 0;
2200 desc.componentSubType = 0;
2201 desc.componentManufacturer = 0;
2202 desc.componentType = kAudioUnitType_Effect;
2204 discover_by_description (plugs, desc);
2208 AUPluginInfo::discover_generators (PluginInfoList& plugs)
2210 CAComponentDescription desc;
2211 desc.componentFlags = 0;
2212 desc.componentFlagsMask = 0;
2213 desc.componentSubType = 0;
2214 desc.componentManufacturer = 0;
2215 desc.componentType = kAudioUnitType_Generator;
2217 discover_by_description (plugs, desc);
2221 AUPluginInfo::discover_instruments (PluginInfoList& plugs)
2223 CAComponentDescription desc;
2224 desc.componentFlags = 0;
2225 desc.componentFlagsMask = 0;
2226 desc.componentSubType = 0;
2227 desc.componentManufacturer = 0;
2228 desc.componentType = kAudioUnitType_MusicDevice;
2230 discover_by_description (plugs, desc);
2234 AUPluginInfo::discover_by_description (PluginInfoList& plugs, CAComponentDescription& desc)
2238 comp = FindNextComponent (NULL, &desc);
2240 while (comp != NULL) {
2241 CAComponentDescription temp;
2242 GetComponentInfo (comp, &temp, NULL, NULL, NULL);
2244 AUPluginInfoPtr info (new AUPluginInfo
2245 (boost::shared_ptr<CAComponentDescription> (new CAComponentDescription(temp))));
2247 /* although apple designed the subtype field to be a "category" indicator,
2248 its really turned into a plugin ID field for a given manufacturer. Hence
2249 there are no categories for AudioUnits. However, to keep the plugins
2250 showing up under "categories", we'll use the "type" as a high level
2253 NOTE: no panners, format converters or i/o AU's for our purposes
2256 switch (info->descriptor->Type()) {
2257 case kAudioUnitType_Panner:
2258 case kAudioUnitType_OfflineEffect:
2259 case kAudioUnitType_FormatConverter:
2262 case kAudioUnitType_Output:
2263 info->category = _("AudioUnit Outputs");
2265 case kAudioUnitType_MusicDevice:
2266 info->category = _("AudioUnit Instruments");
2268 case kAudioUnitType_MusicEffect:
2269 info->category = _("AudioUnit MusicEffects");
2271 case kAudioUnitType_Effect:
2272 info->category = _("AudioUnit Effects");
2274 case kAudioUnitType_Mixer:
2275 info->category = _("AudioUnit Mixers");
2277 case kAudioUnitType_Generator:
2278 info->category = _("AudioUnit Generators");
2281 info->category = _("AudioUnit (Unknown)");
2285 AUPluginInfo::get_names (temp, info->name, info->creator);
2287 info->type = ARDOUR::AudioUnit;
2288 info->unique_id = stringify_descriptor (*info->descriptor);
2290 /* XXX not sure of the best way to handle plugin versioning yet
2293 CAComponent cacomp (*info->descriptor);
2295 if (cacomp.GetResourceVersion (info->version) != noErr) {
2299 if (cached_io_configuration (info->unique_id, info->version, cacomp, info->cache, info->name)) {
2301 /* here we have to map apple's wildcard system to a simple pair
2302 of values. in ::can_do() we use the whole system, but here
2303 we need a single pair of values. XXX probably means we should
2304 remove any use of these values.
2306 for now, if the plugin provides a wildcard, treat it as 1. we really
2307 don't care much, because whether we can handle an i/o configuration
2308 depends upon ::can_support_io_configuration(), not these counts.
2310 they exist because other parts of ardour try to present i/o configuration
2311 info to the user, which should perhaps be revisited.
2314 int32_t possible_in = info->cache.io_configs.front().first;
2315 int32_t possible_out = info->cache.io_configs.front().second;
2317 if (possible_in > 0) {
2318 info->n_inputs.set (DataType::AUDIO, possible_in);
2320 info->n_inputs.set (DataType::AUDIO, 1);
2323 if (possible_out > 0) {
2324 info->n_outputs.set (DataType::AUDIO, possible_out);
2326 info->n_outputs.set (DataType::AUDIO, 1);
2329 DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("detected AU %1 with %2 i/o configurations - %3\n",
2330 info->name.c_str(), info->cache.io_configs.size(), info->unique_id));
2332 plugs.push_back (info);
2335 error << string_compose (_("Cannot get I/O configuration info for AU %1"), info->name) << endmsg;
2338 comp = FindNextComponent (comp, &desc);
2343 AUPluginInfo::cached_io_configuration (const std::string& unique_id,
2346 AUPluginCachedInfo& cinfo,
2347 const std::string& name)
2352 /* concatenate unique ID with version to provide a key for cached info lookup.
2353 this ensures we don't get stale information, or should if plugin developers
2354 follow Apple "guidelines".
2357 snprintf (buf, sizeof (buf), "%u", (uint32_t) version);
2362 CachedInfoMap::iterator cim = cached_info.find (id);
2364 if (cim != cached_info.end()) {
2365 cinfo = cim->second;
2370 AUChannelInfo* channel_info;
2374 ARDOUR::BootMessage (string_compose (_("Checking AudioUnit: %1"), name));
2378 if (CAAudioUnit::Open (comp, unit) != noErr) {
2384 warning << string_compose (_("Could not load AU plugin %1 - ignored"), name) << endmsg;
2389 DEBUG_TRACE (DEBUG::AudioUnits, "get AU channel info\n");
2390 if ((ret = unit.GetChannelInfo (&channel_info, cnt)) < 0) {
2396 /* no explicit info available, so default to 1in/1out */
2398 /* XXX this is wrong. we should be indicating wildcard values */
2400 cinfo.io_configs.push_back (pair<int,int> (-1, -1));
2404 /* store each configuration */
2406 for (uint32_t n = 0; n < cnt; ++n) {
2407 cinfo.io_configs.push_back (pair<int,int> (channel_info[n].inChannels,
2408 channel_info[n].outChannels));
2411 free (channel_info);
2414 add_cached_info (id, cinfo);
2415 save_cached_info ();
2421 AUPluginInfo::add_cached_info (const std::string& id, AUPluginCachedInfo& cinfo)
2423 cached_info[id] = cinfo;
2426 #define AU_CACHE_VERSION "2.0"
2429 AUPluginInfo::save_cached_info ()
2433 node = new XMLNode (X_("AudioUnitPluginCache"));
2434 node->add_property( "version", AU_CACHE_VERSION );
2436 for (map<string,AUPluginCachedInfo>::iterator i = cached_info.begin(); i != cached_info.end(); ++i) {
2437 XMLNode* parent = new XMLNode (X_("plugin"));
2438 parent->add_property ("id", i->first);
2439 node->add_child_nocopy (*parent);
2441 for (vector<pair<int, int> >::iterator j = i->second.io_configs.begin(); j != i->second.io_configs.end(); ++j) {
2443 XMLNode* child = new XMLNode (X_("io"));
2446 snprintf (buf, sizeof (buf), "%d", j->first);
2447 child->add_property (X_("in"), buf);
2448 snprintf (buf, sizeof (buf), "%d", j->second);
2449 child->add_property (X_("out"), buf);
2450 parent->add_child_nocopy (*child);
2455 Glib::ustring path = au_cache_path ();
2458 tree.set_root (node);
2460 if (!tree.write (path)) {
2461 error << string_compose (_("could not save AU cache to %1"), path) << endmsg;
2462 unlink (path.c_str());
2467 AUPluginInfo::load_cached_info ()
2469 Glib::ustring path = au_cache_path ();
2472 if (!Glib::file_test (path, Glib::FILE_TEST_EXISTS)) {
2476 if ( !tree.read (path) ) {
2477 error << "au_cache is not a valid XML file. AU plugins will be re-scanned" << endmsg;
2481 const XMLNode* root (tree.root());
2483 if (root->name() != X_("AudioUnitPluginCache")) {
2487 //initial version has incorrectly stored i/o info, and/or garbage chars.
2488 const XMLProperty* version = root->property(X_("version"));
2489 if (! ((version != NULL) && (version->value() == X_(AU_CACHE_VERSION)))) {
2490 error << "au_cache is not correct version. AU plugins will be re-scanned" << endmsg;
2494 cached_info.clear ();
2496 const XMLNodeList children = root->children();
2498 for (XMLNodeConstIterator iter = children.begin(); iter != children.end(); ++iter) {
2500 const XMLNode* child = *iter;
2502 if (child->name() == X_("plugin")) {
2504 const XMLNode* gchild;
2505 const XMLNodeList gchildren = child->children();
2506 const XMLProperty* prop = child->property (X_("id"));
2512 string id = prop->value();
2516 string::size_type slash = id.find_last_of ('/');
2518 if (slash == string::npos) {
2522 version = id.substr (slash);
2523 id = id.substr (0, slash);
2524 fixed = AUPlugin::maybe_fix_broken_au_id (id);
2526 if (fixed.empty()) {
2527 error << string_compose (_("Your AudioUnit configuration cache contains an AU plugin whose ID cannot be understood - ignored (%1)"), id) << endmsg;
2534 AUPluginCachedInfo cinfo;
2536 for (XMLNodeConstIterator giter = gchildren.begin(); giter != gchildren.end(); giter++) {
2540 if (gchild->name() == X_("io")) {
2544 const XMLProperty* iprop;
2545 const XMLProperty* oprop;
2547 if (((iprop = gchild->property (X_("in"))) != 0) &&
2548 ((oprop = gchild->property (X_("out"))) != 0)) {
2549 in = atoi (iprop->value());
2550 out = atoi (oprop->value());
2552 cinfo.io_configs.push_back (pair<int,int> (in, out));
2557 if (cinfo.io_configs.size()) {
2558 add_cached_info (id, cinfo);
2567 AUPluginInfo::get_names (CAComponentDescription& comp_desc, std::string& name, std::string& maker)
2569 CFStringRef itemName = NULL;
2571 // Marc Poirier-style item name
2572 CAComponent auComponent (comp_desc);
2573 if (auComponent.IsValid()) {
2574 CAComponentDescription dummydesc;
2575 Handle nameHandle = NewHandle(sizeof(void*));
2576 if (nameHandle != NULL) {
2577 OSErr err = GetComponentInfo(auComponent.Comp(), &dummydesc, nameHandle, NULL, NULL);
2579 ConstStr255Param nameString = (ConstStr255Param) (*nameHandle);
2580 if (nameString != NULL) {
2581 itemName = CFStringCreateWithPascalString(kCFAllocatorDefault, nameString, CFStringGetSystemEncoding());
2584 DisposeHandle(nameHandle);
2588 // if Marc-style fails, do the original way
2589 if (itemName == NULL) {
2590 CFStringRef compTypeString = UTCreateStringForOSType(comp_desc.componentType);
2591 CFStringRef compSubTypeString = UTCreateStringForOSType(comp_desc.componentSubType);
2592 CFStringRef compManufacturerString = UTCreateStringForOSType(comp_desc.componentManufacturer);
2594 itemName = CFStringCreateWithFormat(kCFAllocatorDefault, NULL, CFSTR("%@ - %@ - %@"),
2595 compTypeString, compManufacturerString, compSubTypeString);
2597 if (compTypeString != NULL)
2598 CFRelease(compTypeString);
2599 if (compSubTypeString != NULL)
2600 CFRelease(compSubTypeString);
2601 if (compManufacturerString != NULL)
2602 CFRelease(compManufacturerString);
2605 string str = CFStringRefToStdString(itemName);
2606 string::size_type colon = str.find (':');
2609 name = str.substr (colon+1);
2610 maker = str.substr (0, colon);
2611 strip_whitespace_edges (maker);
2612 strip_whitespace_edges (name);
2616 strip_whitespace_edges (name);
2621 AUPluginInfo::stringify_descriptor (const CAComponentDescription& desc)
2625 /* note: OSType is a compiler-implemenation-defined value,
2626 historically a 32 bit integer created with a multi-character
2627 constant such as 'abcd'. It is, fundamentally, an abomination.
2632 s << desc.SubType();
2640 AUPluginInfo::needs_midi_input ()
2642 return is_effect_with_midi_input () || is_instrument ();
2646 AUPluginInfo::is_effect () const
2648 return is_effect_without_midi_input() || is_effect_with_midi_input();
2652 AUPluginInfo::is_effect_without_midi_input () const
2654 return descriptor->IsAUFX();
2658 AUPluginInfo::is_effect_with_midi_input () const
2660 return descriptor->IsAUFM();
2664 AUPluginInfo::is_instrument () const
2666 return descriptor->IsMusicDevice();
2670 AUPlugin::set_info (PluginInfoPtr info)
2672 Plugin::set_info (info);
2674 AUPluginInfoPtr pinfo = boost::dynamic_pointer_cast<AUPluginInfo>(get_info());
2675 _has_midi_input = pinfo->needs_midi_input ();
2676 _has_midi_output = false;
2680 AUPlugin::create_parameter_listener (AUEventListenerProc cb, void* arg, float interval_secs)
2682 CFRunLoopRef run_loop = (CFRunLoopRef) GetCFRunLoopFromEventLoop(GetCurrentEventLoop());
2683 CFStringRef loop_mode = kCFRunLoopDefaultMode;
2685 if (AUEventListenerCreate (cb, arg, run_loop, loop_mode, interval_secs, interval_secs, &_parameter_listener) != noErr) {
2689 _parameter_listener_arg = arg;
2695 AUPlugin::listen_to_parameter (uint32_t param_id)
2697 AudioUnitEvent event;
2699 if (!_parameter_listener || param_id >= descriptors.size()) {
2703 event.mEventType = kAudioUnitEvent_ParameterValueChange;
2704 event.mArgument.mParameter.mAudioUnit = unit->AU();
2705 event.mArgument.mParameter.mParameterID = descriptors[param_id].id;
2706 event.mArgument.mParameter.mScope = descriptors[param_id].scope;
2707 event.mArgument.mParameter.mElement = descriptors[param_id].element;
2709 if (AUEventListenerAddEventType (_parameter_listener, _parameter_listener_arg, &event) != noErr) {
2717 AUPlugin::end_listen_to_parameter (uint32_t param_id)
2719 AudioUnitEvent event;
2721 if (!_parameter_listener || param_id >= descriptors.size()) {
2725 event.mEventType = kAudioUnitEvent_ParameterValueChange;
2726 event.mArgument.mParameter.mAudioUnit = unit->AU();
2727 event.mArgument.mParameter.mParameterID = descriptors[param_id].id;
2728 event.mArgument.mParameter.mScope = descriptors[param_id].scope;
2729 event.mArgument.mParameter.mElement = descriptors[param_id].element;
2731 if (AUEventListenerRemoveEventType (_parameter_listener, _parameter_listener_arg, &event) != noErr) {
2739 AUPlugin::_parameter_change_listener (void* arg, void* src, const AudioUnitEvent* event, UInt64 host_time, Float32 new_value)
2741 ((AUPlugin*) arg)->parameter_change_listener (arg, src, event, host_time, new_value);
2745 AUPlugin::parameter_change_listener (void* /*arg*/, void* /*src*/, const AudioUnitEvent* event, UInt64 host_time, Float32 new_value)
2747 ParameterMap::iterator i = parameter_map.find (event->mArgument.mParameter.mParameterID);
2749 if (i != parameter_map.end()) {
2750 ParameterChanged (i->second, new_value);