X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Faudio_unit.cc;h=83d2c46ba670af734a310e3da29a54b4735ed53f;hb=aaabaf5d3c8624f398809bb468e2b121a23abda0;hp=171e303f9961fb4aacd9aee3d6a5e7dab0d4bd04;hpb=4b861e603972148a29638cade51cee27ebc997a2;p=ardour.git diff --git a/libs/ardour/audio_unit.cc b/libs/ardour/audio_unit.cc index 171e303f99..83d2c46ba6 100644 --- a/libs/ardour/audio_unit.cc +++ b/libs/ardour/audio_unit.cc @@ -1,5 +1,5 @@ /* - Copyright (C) 2006-2009 Paul Davis + Copyright (C) 2006-2009 Paul Davis Some portions Copyright (C) Sophia Poirier. This program is free software; you can redistribute it and/or modify @@ -31,17 +31,19 @@ #include "pbd/pathscanner.h" #include "pbd/locale_guard.h" -#include +#include #include #include #include "ardour/ardour.h" #include "ardour/audioengine.h" #include "ardour/audio_buffer.h" +#include "ardour/debug.h" #include "ardour/midi_buffer.h" #include "ardour/filesystem_paths.h" #include "ardour/io.h" #include "ardour/audio_unit.h" +#include "ardour/route.h" #include "ardour/session.h" #include "ardour/tempo.h" #include "ardour/utils.h" @@ -53,6 +55,9 @@ #include #include #include +#ifdef WITH_CARBON +#include +#endif #include "i18n.h" @@ -60,28 +65,13 @@ using namespace std; using namespace PBD; using namespace ARDOUR; -//#define TRACE_AU_API -#ifdef TRACE_AU_API -#define TRACE_API(fmt,...) fprintf (stderr, fmt, ## __VA_ARGS__) -#else -#define TRACE_API(fmt,...) -#endif - -#ifndef AU_STATE_SUPPORT -static bool seen_get_state_message = false; -static bool seen_set_state_message = false; -static bool seen_loading_message = false; -static bool seen_saving_message = false; -#endif - AUPluginInfo::CachedInfoMap AUPluginInfo::cached_info; static string preset_search_path = "/Library/Audio/Presets:/Network/Library/Audio/Presets"; static string preset_suffix = ".aupreset"; static bool preset_search_path_initialized = false; -static bool debug_io_config = true; -static OSStatus +static OSStatus _render_callback(void *userData, AudioUnitRenderActionFlags *ioActionFlags, const AudioTimeStamp *inTimeStamp, @@ -95,24 +85,24 @@ _render_callback(void *userData, return paramErr; } -static OSStatus -_get_beat_and_tempo_callback (void* userData, - Float64* outCurrentBeat, - Float64* outCurrentTempo) +static OSStatus +_get_beat_and_tempo_callback (void* userData, + Float64* outCurrentBeat, + Float64* outCurrentTempo) { if (userData) { return ((AUPlugin*)userData)->get_beat_and_tempo_callback (outCurrentBeat, outCurrentTempo); } - + return paramErr; } -static OSStatus +static OSStatus _get_musical_time_location_callback (void * userData, - UInt32 * outDeltaSampleOffsetToNextBeat, - Float32 * outTimeSig_Numerator, - UInt32 * outTimeSig_Denominator, - Float64 * outCurrentMeasureDownBeat) + UInt32 * outDeltaSampleOffsetToNextBeat, + Float32 * outTimeSig_Numerator, + UInt32 * outTimeSig_Denominator, + Float64 * outCurrentMeasureDownBeat) { if (userData) { return ((AUPlugin*)userData)->get_musical_time_location_callback (outDeltaSampleOffsetToNextBeat, @@ -123,7 +113,7 @@ _get_musical_time_location_callback (void * userData, return paramErr; } -static OSStatus +static OSStatus _get_transport_state_callback (void* userData, Boolean* outIsPlaying, Boolean* outTransportStateChanged, @@ -133,15 +123,16 @@ _get_transport_state_callback (void* userData, Float64* outCycleEndBeat) { if (userData) { - return ((AUPlugin*)userData)->get_transport_state_callback (outIsPlaying, outTransportStateChanged, - outCurrentSampleInTimeLine, outIsCycling, - outCycleStartBeat, outCycleEndBeat); + return ((AUPlugin*)userData)->get_transport_state_callback ( + outIsPlaying, outTransportStateChanged, + outCurrentSampleInTimeLine, outIsCycling, + outCycleStartBeat, outCycleEndBeat); } return paramErr; } -static int +static int save_property_list (CFPropertyListRef propertyList, Glib::ustring path) { @@ -149,7 +140,7 @@ save_property_list (CFPropertyListRef propertyList, Glib::ustring path) int fd; // Convert the property list into XML data. - + xmlData = CFPropertyListCreateXMLData( kCFAllocatorDefault, propertyList); if (!xmlData) { @@ -162,16 +153,12 @@ save_property_list (CFPropertyListRef propertyList, Glib::ustring path) fd = open (path.c_str(), O_WRONLY|O_CREAT|O_EXCL, 0664); while (fd < 0) { if (errno == EEXIST) { - /* tell any UI's that this file already exists and ask them what to do */ - bool overwrite = Plugin::PresetFileExists(); // EMIT SIGNAL - if (overwrite) { - fd = open (path.c_str(), O_WRONLY, 0664); - continue; - } else { - return 0; - } + error << string_compose (_("Preset file %1 exists; not overwriting"), + path) << endmsg; + } else { + error << string_compose (_("Cannot open preset file %1 (%2)"), + path, strerror (errno)) << endmsg; } - error << string_compose (_("Cannot open preset file %1 (%2)"), path, strerror (errno)) << endmsg; CFRelease (xmlData); return -1; } @@ -187,10 +174,10 @@ save_property_list (CFPropertyListRef propertyList, Glib::ustring path) close (fd); return 0; } - -static CFPropertyListRef -load_property_list (Glib::ustring path) + +static CFPropertyListRef +load_property_list (Glib::ustring path) { int fd; CFPropertyListRef propertyList = 0; @@ -198,12 +185,12 @@ load_property_list (Glib::ustring path) CFStringRef errorString; // Read the XML file. - + if ((fd = open (path.c_str(), O_RDONLY)) < 0) { return propertyList; } - + off_t len = lseek (fd, 0, SEEK_END); char* buf = new char[len]; lseek (fd, 0, SEEK_SET); @@ -213,13 +200,13 @@ load_property_list (Glib::ustring path) close (fd); return propertyList; } - + close (fd); xmlData = CFDataCreateWithBytesNoCopy (kCFAllocatorDefault, (UInt8*) buf, len, kCFAllocatorNull); - + // Reconstitute the dictionary using the XML data. - + propertyList = CFPropertyListCreateFromXMLData( kCFAllocatorDefault, xmlData, kCFPropertyListImmutable, @@ -232,7 +219,7 @@ load_property_list (Glib::ustring path) } //----------------------------------------------------------------------------- -static void +static void set_preset_name_in_plist (CFPropertyListRef plist, string preset_name) { if (!plist) { @@ -243,7 +230,7 @@ set_preset_name_in_plist (CFPropertyListRef plist, string preset_name) if (CFGetTypeID (plist) == CFDictionaryGetTypeID()) { CFDictionarySetValue ((CFMutableDictionaryRef)plist, CFSTR(kAUPresetNameKey), pn); } - + CFRelease (pn); } @@ -267,7 +254,7 @@ get_preset_name_in_plist (CFPropertyListRef plist) if (CFStringGetCString (str, local_buffer, len, kCFStringEncodingUTF8)) { ret = local_buffer; } - } + } } return ret; } @@ -281,7 +268,7 @@ Boolean ComponentDescriptionsMatch_General(const ComponentDescription * inCompon if ( (inComponentDescription1 == NULL) || (inComponentDescription2 == NULL) ) return FALSE; - if ( (inComponentDescription1->componentSubType == inComponentDescription2->componentSubType) + if ( (inComponentDescription1->componentSubType == inComponentDescription2->componentSubType) && (inComponentDescription1->componentManufacturer == inComponentDescription2->componentManufacturer) ) { // only sub-type and manufacturer IDs need to be equal @@ -318,7 +305,7 @@ Boolean ComponentAndDescriptionMatch_General(Component inComponent, const Compon //-------------------------------------------------------------------------- // determine if 2 ComponentDescriptions are basically equal -// (by that, I mean that the important identifying values are compared, +// (by that, I mean that the important identifying values are compared, // but not the ComponentDescription flags) Boolean ComponentDescriptionsMatch(const ComponentDescription * inComponentDescription1, const ComponentDescription * inComponentDescription2) { @@ -355,13 +342,15 @@ AUPlugin::AUPlugin (AudioEngine& engine, Session& session, boost::shared_ptrUninitialize (); } @@ -407,12 +404,19 @@ void AUPlugin::discover_factory_presets () { CFArrayRef presets; - UInt32 dataSize = sizeof (presets); + UInt32 dataSize; + Boolean isWritable; OSStatus err; - - TRACE_API ("get property FactoryPresets in global scope\n"); + + if ((err = unit->GetPropertyInfo (kAudioUnitProperty_FactoryPresets, kAudioUnitScope_Global, 0, &dataSize, &isWritable)) != 0) { + DEBUG_TRACE (DEBUG::AudioUnits, "no factory presets for AU\n"); + return; + } + + assert (dataSize == sizeof (presets)); + if ((err = unit->GetProperty (kAudioUnitProperty_FactoryPresets, kAudioUnitScope_Global, 0, (void*) &presets, &dataSize)) != 0) { - cerr << "cannot get factory preset info: " << err << endl; + error << string_compose (_("cannot get factory preset info: errcode %1"), err) << endmsg; return; } @@ -428,7 +432,7 @@ AUPlugin::discover_factory_presets () string name = CFStringRefToStdString (preset->presetName); factory_preset_map[name] = preset->presetNumber; } - + CFRelease (presets); } @@ -437,8 +441,15 @@ AUPlugin::init () { OSErr err; + /* these keep track of *configured* channel set up, + not potential set ups. + */ + + input_channels = -1; + output_channels = -1; + try { - TRACE_API ("opening AudioUnit\n"); + DEBUG_TRACE (DEBUG::AudioUnits, "opening AudioUnit\n"); err = CAAudioUnit::Open (*(comp.get()), *unit); } catch (...) { error << _("Exception thrown during AudioUnit plugin loading - plugin ignored") << endmsg; @@ -449,27 +460,30 @@ AUPlugin::init () error << _("AudioUnit: Could not convert CAComponent to CAAudioUnit") << endmsg; throw failed_constructor (); } - - TRACE_API ("count global elements\n"); + + DEBUG_TRACE (DEBUG::AudioUnits, "count global elements\n"); unit->GetElementCount (kAudioUnitScope_Global, global_elements); - TRACE_API ("count input elements\n"); + DEBUG_TRACE (DEBUG::AudioUnits, "count input elements\n"); unit->GetElementCount (kAudioUnitScope_Input, input_elements); - TRACE_API ("count output elements\n"); + DEBUG_TRACE (DEBUG::AudioUnits, "count output elements\n"); unit->GetElementCount (kAudioUnitScope_Output, output_elements); - if (input_elements > 0) { - AURenderCallbackStruct renderCallbackInfo; - - renderCallbackInfo.inputProc = _render_callback; - renderCallbackInfo.inputProcRefCon = this; - - TRACE_API ("set render callback in input scope\n"); - if ((err = unit->SetProperty (kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Input, - 0, (void*) &renderCallbackInfo, sizeof(renderCallbackInfo))) != 0) { - cerr << "cannot install render callback (err = " << err << ')' << endl; - throw failed_constructor(); - } - } + if (input_elements > 0) { + /* setup render callback: the plugin calls this to get input data + */ + + AURenderCallbackStruct renderCallbackInfo; + + renderCallbackInfo.inputProc = _render_callback; + renderCallbackInfo.inputProcRefCon = this; + + DEBUG_TRACE (DEBUG::AudioUnits, "set render callback in input scope\n"); + if ((err = unit->SetProperty (kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Input, + 0, (void*) &renderCallbackInfo, sizeof(renderCallbackInfo))) != 0) { + error << string_compose (_("cannot install render callback (err = %1)"), err) << endmsg; + throw failed_constructor(); + } + } /* tell the plugin about tempo/meter/transport callbacks in case it wants them */ @@ -479,31 +493,21 @@ AUPlugin::init () info.beatAndTempoProc = _get_beat_and_tempo_callback; info.musicalTimeLocationProc = _get_musical_time_location_callback; info.transportStateProc = _get_transport_state_callback; - - //ignore result of this - don't care if the property isn't supported - TRACE_API ("set host callbacks in global scope\n"); - unit->SetProperty (kAudioUnitProperty_HostCallbacks, - kAudioUnitScope_Global, - 0, //elementID + + //ignore result of this - don't care if the property isn't supported + DEBUG_TRACE (DEBUG::AudioUnits, "set host callbacks in global scope\n"); + unit->SetProperty (kAudioUnitProperty_HostCallbacks, + kAudioUnitScope_Global, + 0, //elementID &info, sizeof (HostCallbackInfo)); - /* these keep track of *configured* channel set up, - not potential set ups. - */ - - input_channels = -1; - output_channels = -1; - if (set_block_size (_session.get_block_size())) { error << _("AUPlugin: cannot set processing block size") << endmsg; throw failed_constructor(); } - AUPluginInfoPtr pinfo = boost::dynamic_pointer_cast(get_info()); - _has_midi_input = pinfo->needs_midi_input (); - _has_midi_output = false; - + create_parameter_listener (AUPlugin::_parameter_change_listener, this, 0.05); discover_parameters (); discover_factory_presets (); @@ -514,8 +518,8 @@ void AUPlugin::discover_parameters () { /* discover writable parameters */ - - AudioUnitScope scopes[] = { + + AudioUnitScope scopes[] = { kAudioUnitScope_Global, kAudioUnitScope_Output, kAudioUnitScope_Input @@ -526,7 +530,7 @@ AUPlugin::discover_parameters () for (uint32_t i = 0; i < sizeof (scopes) / sizeof (scopes[0]); ++i) { AUParamInfo param_info (unit->AU(), false, false, scopes[i]); - + for (uint32_t i = 0; i < param_info.NumParams(); ++i) { AUParameterDescriptor d; @@ -605,10 +609,10 @@ AUPlugin::discover_parameters () d.toggled = (info.unit == kAudioUnitParameterUnit_Boolean) || (d.integer_step && ((d.upper - d.lower) == 1.0)); d.sr_dependent = (info.unit == kAudioUnitParameterUnit_SampleFrames); - d.automatable = !d.toggled && + d.automatable = !d.toggled && !(info.flags & kAudioUnitParameterFlag_NonRealTime) && (info.flags & kAudioUnitParameterFlag_IsWritable); - + d.logarithmic = (info.flags & kAudioUnitParameterFlag_DisplayLogarithmic); d.unit = info.unit; @@ -619,6 +623,10 @@ AUPlugin::discover_parameters () d.max_unbound = 0; // upper is bound descriptors.push_back (d); + + uint32_t last_param = descriptors.size() - 1; + parameter_map.insert (pair (d.id, last_param)); + listen_to_parameter (last_param); } } } @@ -642,8 +650,8 @@ AUPlugin::maybe_fix_broken_au_id (const std::string& id) /* ID format is xxxx-xxxx-xxxx where x maybe \xNN or a printable character. - - Split at the '-' and and process each part into an integer. + + Split at the '-' and and process each part into an integer. Then put it back together. */ @@ -669,26 +677,24 @@ AUPlugin::maybe_fix_broken_au_id (const std::string& id) /* too close to the end for \xNN parsing: treat as literal characters */ - cerr << "Parse " << cstr << " as a literal \\" << endl; nascent[in] = *cstr; ++cstr; ++in; } else { - + if (cstr[1] == 'x' && isxdigit (cstr[2]) && isxdigit (cstr[3])) { - + /* parse \xNN */ - + memcpy (short_buf, &cstr[2], 2); nascent[in] = strtol (short_buf, NULL, 16); cstr += 4; ++in; - + } else { /* treat as literal characters */ - cerr << "Parse " << cstr << " as a literal \\" << endl; nascent[in] = *cstr; ++cstr; ++in; @@ -723,7 +729,7 @@ AUPlugin::maybe_fix_broken_au_id (const std::string& id) } s << n[0] << '-' << n[1] << '-' << n[2]; - + return s.str(); err: @@ -767,24 +773,32 @@ AUPlugin::signal_latency () const void AUPlugin::set_parameter (uint32_t which, float val) { - if (which < descriptors.size()) { - const AUParameterDescriptor& d (descriptors[which]); - TRACE_API ("set parameter %d in scope %d element %d to %f\n", d.id, d.scope, d.element, val); - unit->SetParameter (d.id, d.scope, d.element, val); + if (which >= descriptors.size()) { + return; + } + + if (get_parameter(which) == val) { + return; + } - /* tell the world what we did */ + const AUParameterDescriptor& d (descriptors[which]); + DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("set parameter %1 in scope %2 element %3 to %4\n", d.id, d.scope, d.element, val)); + unit->SetParameter (d.id, d.scope, d.element, val); - AudioUnitEvent theEvent; - - theEvent.mEventType = kAudioUnitEvent_ParameterValueChange; - theEvent.mArgument.mParameter.mAudioUnit = unit->AU(); - theEvent.mArgument.mParameter.mParameterID = d.id; - theEvent.mArgument.mParameter.mScope = d.scope; - theEvent.mArgument.mParameter.mElement = d.element; + /* tell the world what we did */ - TRACE_API ("notify about parameter change\n"); - AUEventListenerNotify (NULL, NULL, &theEvent); - } + AudioUnitEvent theEvent; + + theEvent.mEventType = kAudioUnitEvent_ParameterValueChange; + theEvent.mArgument.mParameter.mAudioUnit = unit->AU(); + theEvent.mArgument.mParameter.mParameterID = d.id; + theEvent.mArgument.mParameter.mScope = d.scope; + theEvent.mArgument.mParameter.mElement = d.element; + + DEBUG_TRACE (DEBUG::AudioUnits, "notify about parameter change\n"); + AUEventListenerNotify (NULL, NULL, &theEvent); + + Plugin::set_parameter (which, val); } float @@ -793,7 +807,7 @@ AUPlugin::get_parameter (uint32_t which) const float val = 0.0; if (which < descriptors.size()) { const AUParameterDescriptor& d (descriptors[which]); - TRACE_API ("get value of parameter %d in scope %d element %d\n", d.id, d.scope, d.element); + // DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("get value of parameter %1 in scope %2 element %3\n", d.id, d.scope, d.element)); unit->GetParameter(d.id, d.scope, d.element, val); } return val; @@ -805,7 +819,7 @@ AUPlugin::get_parameter_descriptor (uint32_t which, ParameterDescriptor& pd) con if (which < descriptors.size()) { pd = descriptors[which]; return 0; - } + } return -1; } @@ -825,7 +839,7 @@ AUPlugin::activate () { if (!initialized) { OSErr err; - TRACE_API ("call Initialize in activate()\n"); + DEBUG_TRACE (DEBUG::AudioUnits, "call Initialize in activate()\n"); if ((err = unit->Initialize()) != noErr) { error << string_compose (_("AUPlugin: %1 cannot initialize plugin (err = %2)"), name(), err) << endmsg; } else { @@ -838,7 +852,7 @@ AUPlugin::activate () void AUPlugin::deactivate () { - TRACE_API ("call Uninitialize in deactivate()\n"); + DEBUG_TRACE (DEBUG::AudioUnits, "call Uninitialize in deactivate()\n"); unit->Uninitialize (); initialized = false; } @@ -846,7 +860,7 @@ AUPlugin::deactivate () void AUPlugin::flush () { - TRACE_API ("call Reset in flush()\n"); + DEBUG_TRACE (DEBUG::AudioUnits, "call Reset in flush()\n"); unit->GlobalReset (); } @@ -868,10 +882,10 @@ AUPlugin::set_block_size (pframes_t nframes) deactivate (); } - TRACE_API ("set MaximumFramesPerSlice in global scope to %u\n", numFrames); - if ((err = unit->SetProperty (kAudioUnitProperty_MaximumFramesPerSlice, kAudioUnitScope_Global, + DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("set MaximumFramesPerSlice in global scope to %1\n", numFrames)); + if ((err = unit->SetProperty (kAudioUnitProperty_MaximumFramesPerSlice, kAudioUnitScope_Global, 0, &numFrames, sizeof (numFrames))) != noErr) { - cerr << "cannot set max frames (err = " << err << ')' << endl; + error << string_compose (_("AU: cannot set max frames (err = %1)"), err) << endmsg; return -1; } @@ -892,6 +906,8 @@ AUPlugin::configure_io (ChanCount in, ChanCount out) int32_t audio_in = in.n_audio(); int32_t audio_out = out.n_audio(); + DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("configure %1 for %2 in %3 out\n", name(), in, out)); + if (initialized) { //if we are already running with the requested i/o config, bail out here if ( (audio_in==input_channels) && (audio_out==output_channels) ) { @@ -932,6 +948,11 @@ AUPlugin::configure_io (ChanCount in, ChanCount out) return -1; } + /* reset plugin info to show currently configured state */ + + _info->n_inputs = in; + _info->n_outputs = out; + if (was_initialized) { activate (); } @@ -939,15 +960,51 @@ AUPlugin::configure_io (ChanCount in, ChanCount out) return 0; } +ChanCount +AUPlugin::input_streams() const +{ + ChanCount c; + + c.set (DataType::AUDIO, 1); + c.set (DataType::MIDI, 0); + + if (input_channels < 0) { + warning << string_compose (_("AUPlugin: %1 input_streams() called without any format set!"), name()) << endmsg; + } else { + c.set (DataType::AUDIO, input_channels); + c.set (DataType::MIDI, _has_midi_input ? 1 : 0); + } + + return c; +} + + +ChanCount +AUPlugin::output_streams() const +{ + ChanCount c; + + c.set (DataType::AUDIO, 1); + c.set (DataType::MIDI, 0); + + if (output_channels < 0) { + warning << string_compose (_("AUPlugin: %1 output_streams() called without any format set!"), name()) << endmsg; + } else { + c.set (DataType::AUDIO, output_channels); + c.set (DataType::MIDI, _has_midi_output ? 1 : 0); + } + + return c; +} + bool -AUPlugin::can_support_io_configuration (const ChanCount& in, ChanCount& out) const +AUPlugin::can_support_io_configuration (const ChanCount& in, ChanCount& out) { - // XXX as of May 13th 2008, AU plugin support returns a count of either 1 or -1. We never - // attempt to multiply-instantiate plugins to meet io configurations. + // Note: We never attempt to multiply-instantiate plugins to meet io configurations. int32_t audio_in = in.n_audio(); int32_t audio_out; - int32_t plugcnt = -1; + bool found = false; AUPluginInfoPtr pinfo = boost::dynamic_pointer_cast(get_info()); /* lets check MIDI first */ @@ -960,40 +1017,47 @@ AUPlugin::can_support_io_configuration (const ChanCount& in, ChanCount& out) con vector >& io_configs = pinfo->cache.io_configs; - if (debug_io_config) { - cerr << name() << " has " << io_configs.size() << " IO Configurations\n"; - } + DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1 has %2 IO configurations, looking for %3 in, %4 out\n", + name(), io_configs.size(), in, out)); - //Ardour expects the plugin to tell it the output configuration - //but AU plugins can have multiple I/O configurations - //in most cases (since we don't allow special routing like sidechains in A2, we want to preserve the number of streams - //so first lets see if there's a configuration that keeps out==in + //Ardour expects the plugin to tell it the output + //configuration but AU plugins can have multiple I/O + //configurations in most cases. so first lets see + //if there's a configuration that keeps out==in audio_out = audio_in; for (vector >::iterator i = io_configs.begin(); i != io_configs.end(); ++i) { + int32_t possible_in = i->first; int32_t possible_out = i->second; - if (possible_in == audio_in && possible_out== audio_out) { - cerr << "\tCHOSEN: in " << in << " out " << out << endl; + if ((possible_in == audio_in) && (possible_out == audio_out)) { + DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("\tCHOSEN: %1 in %2 out to match in %3 out %4\n", + possible_in, possible_out, + in, out)); + + out.set (DataType::MIDI, 0); + out.set (DataType::AUDIO, audio_out); + return 1; } } /* now allow potentially "imprecise" matches */ + audio_out = -1; + for (vector >::iterator i = io_configs.begin(); i != io_configs.end(); ++i) { int32_t possible_in = i->first; int32_t possible_out = i->second; - if (debug_io_config) { - cerr << "\tin " << possible_in << " out " << possible_out << endl; - } + DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("\tpossible in %1 possible out %2\n", possible_in, possible_out)); if (possible_out == 0) { warning << string_compose (_("AU %1 has zero outputs - configuration ignored"), name()) << endmsg; + /* XXX surely this is just a send? (e.g. AUNetSend) */ continue; } @@ -1003,24 +1067,39 @@ AUPlugin::can_support_io_configuration (const ChanCount& in, ChanCount& out) con */ if (possible_out == -1) { - /* out much match in (UNLIKELY!!) */ - audio_out = audio_in; - plugcnt = 1; + /* any configuration possible, provide stereo output */ + audio_out = 2; + found = true; } else if (possible_out == -2) { - /* any configuration possible, pick matching */ - audio_out = audio_in; - plugcnt = 1; + /* plugins shouldn't really use (0,-2) but might. + any configuration possible, provide stereo output + */ + audio_out = 2; + found = true; } else if (possible_out < -2) { - /* explicit variable number of outputs, pick maximum */ - audio_out = -possible_out; - plugcnt = 1; + /* explicitly variable number of outputs. + + Since Ardour can handle any configuration, + we have to somehow pick a number. + + We'll use the number of inputs + to the master bus, or 2 if there + is no master bus. + */ + boost::shared_ptr master = _session.master_out(); + if (master) { + audio_out = master->input()->n_ports().n_audio(); + } else { + audio_out = 2; + } + found = true; } else { /* exact number of outputs */ audio_out = possible_out; - plugcnt = 1; + found = true; } } - + if (possible_in == -1) { /* wildcard for input */ @@ -1028,40 +1107,42 @@ AUPlugin::can_support_io_configuration (const ChanCount& in, ChanCount& out) con if (possible_out == -1) { /* out much match in */ audio_out = audio_in; - plugcnt = 1; + found = true; } else if (possible_out == -2) { /* any configuration possible, pick matching */ audio_out = audio_in; - plugcnt = 1; + found = true; } else if (possible_out < -2) { - /* explicit variable number of outputs, pick maximum */ + /* explicitly variable number of outputs, pick maximum */ audio_out = -possible_out; - plugcnt = 1; + found = true; } else { /* exact number of outputs */ audio_out = possible_out; - plugcnt = 1; + found = true; } - } - + } + if (possible_in == -2) { if (possible_out == -1) { /* any configuration possible, pick matching */ audio_out = audio_in; - plugcnt = 1; + found = true; } else if (possible_out == -2) { - error << string_compose (_("AU plugin %1 has illegal IO configuration (-2,-2)"), name()) - << endmsg; - plugcnt = -1; + /* plugins shouldn't really use (-2,-2) but might. + interpret as (-1,-1). + */ + audio_out = audio_in; + found = true; } else if (possible_out < -2) { - /* explicit variable number of outputs, pick maximum */ + /* explicitly variable number of outputs, pick maximum */ audio_out = -possible_out; - plugcnt = 1; + found = true; } else { /* exact number of outputs */ audio_out = possible_out; - plugcnt = 1; + found = true; } } @@ -1071,69 +1152,86 @@ AUPlugin::can_support_io_configuration (const ChanCount& in, ChanCount& out) con if (audio_in > -possible_in) { /* request is too large */ - plugcnt = -1; } + if (possible_out == -1) { - /* out must match in */ - audio_out = audio_in; - plugcnt = 1; + /* any output configuration possible, provide stereo out */ + audio_out = 2; + found = true; } else if (possible_out == -2) { - error << string_compose (_("AU plugin %1 has illegal IO configuration (-2,-2)"), name()) - << endmsg; - plugcnt = -1; + /* plugins shouldn't really use (<-2,-2) but might. + interpret as (<-2,-1): any configuration possible, provide stereo output + */ + audio_out = 2; + found = true; } else if (possible_out < -2) { - /* explicit variable number of outputs, pick maximum */ - audio_out = -possible_out; - plugcnt = 1; + /* explicitly variable number of outputs. + + Since Ardour can handle any configuration, + we have to somehow pick a number. + + We'll use the number of inputs + to the master bus, or 2 if there + is no master bus. + */ + boost::shared_ptr master = _session.master_out(); + if (master) { + audio_out = master->input()->n_ports().n_audio(); + } else { + audio_out = 2; + } + found = true; } else { /* exact number of outputs */ audio_out = possible_out; - plugcnt = 1; + found = true; } } - if (possible_in == audio_in) { + if (possible_in && (possible_in == audio_in)) { /* exact number of inputs ... must match obviously */ - + if (possible_out == -1) { - /* out must match in */ - audio_out = audio_in; - plugcnt = 1; + /* any output configuration possible, provide stereo output */ + audio_out = 2; + found = true; } else if (possible_out == -2) { - /* any output configuration, pick matching */ - audio_out = audio_in; - plugcnt = -1; + /* plugins shouldn't really use (>0,-2) but might. + interpret as (>0,-1): + any output configuration possible, provide stereo output + */ + audio_out = 2; + found = true; } else if (possible_out < -2) { - /* explicit variable number of outputs, pick maximum */ + /* explicitly variable number of outputs, pick maximum */ audio_out = -possible_out; - plugcnt = 1; + found = true; } else { /* exact number of outputs */ audio_out = possible_out; - plugcnt = 1; + found = true; } } - if (plugcnt == 1) { + if (found) { break; } } - if (debug_io_config) { - if (plugcnt > 0) { - cerr << "\tCHOSEN: in " << in << " out " << out << " plugcnt will be " << plugcnt << endl; - } else { - cerr << "\tFAIL: no configs match requested in " << in << endl; - } + if (found) { + DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("\tCHOSEN: in %1 out %2\n", in, out)); + } else { + DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("\tFAIL: no io configs match %1\n", in)); + return false; } out.set (DataType::MIDI, 0); out.set (DataType::AUDIO, audio_out); - return plugcnt; + return true; } int @@ -1153,12 +1251,9 @@ AUPlugin::set_output_format (AudioStreamBasicDescription& fmt) free (buffers); buffers = 0; } - - buffers = (AudioBufferList *) malloc (offsetof(AudioBufferList, mBuffers) + - fmt.mChannelsPerFrame * sizeof(::AudioBuffer)); - Glib::Mutex::Lock em (_session.engine().process_lock()); - IO::PortCountChanged (ChanCount(DataType::AUDIO, fmt.mChannelsPerFrame)); + buffers = (AudioBufferList *) malloc (offsetof(AudioBufferList, mBuffers) + + fmt.mChannelsPerFrame * sizeof(::AudioBuffer)); return 0; } @@ -1169,9 +1264,9 @@ AUPlugin::set_stream_format (int scope, uint32_t cnt, AudioStreamBasicDescriptio OSErr result; for (uint32_t i = 0; i < cnt; ++i) { - TRACE_API ("set stream format for %s, scope = %d element %d\n", - (scope == kAudioUnitScope_Input ? "input" : "output"), - scope, cnt); + DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("set stream format for %1, scope = %2 element %3\n", + (scope == kAudioUnitScope_Input ? "input" : "output"), + scope, cnt)); if ((result = unit->SetFormat (scope, i, fmt)) != 0) { error << string_compose (_("AUPlugin: could not set stream format for %1/%2 (err = %3)"), (scope == kAudioUnitScope_Input ? "input" : "output"), i, result) << endmsg; @@ -1188,51 +1283,23 @@ AUPlugin::set_stream_format (int scope, uint32_t cnt, AudioStreamBasicDescriptio return 0; } -OSStatus +OSStatus AUPlugin::render_callback(AudioUnitRenderActionFlags*, const AudioTimeStamp*, UInt32, UInt32 inNumberFrames, AudioBufferList* ioData) { - if (_has_midi_input) { - assert (current_buffers->count().n_midi() > 0); - - /* deliver the first (and assumed only) MIDI buffer's data - to the plugin - */ - - MidiBuffer& mb (current_buffers->get_midi(0)); - - for (MidiBuffer::iterator i = mb.begin(); i != mb.end(); ++i) { - Evoral::MIDIEvent ev = *i; - switch (ev.type()) { - case MIDI_CMD_NOTE_ON: - case MIDI_CMD_NOTE_OFF: - case MIDI_CMD_CONTROL: - case MIDI_CMD_BENDER: - case MIDI_CMD_PGM_CHANGE: - case MIDI_CMD_CHANNEL_PRESSURE: - { - const uint8_t* b = ev.buffer(); - unit->MIDIEvent (b[0], b[1], b[2], ev.time()); - break; - } - - default: - /* plugins do not get other stuff by default */ - break; - }; - } - } - /* not much to do with audio - the data is already in the buffers given to us in connect_and_run() */ - if (current_maxbuf == 0) { + // DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1: render callback, frames %2 bufs %3\n", + // name(), inNumberFrames, ioData->mNumberBuffers)); + + if (input_maxbuf == 0) { error << _("AUPlugin: render callback called illegally!") << endmsg; return kAudioUnitErr_CannotDoInCurrentContext; } - uint32_t limit = min ((uint32_t) ioData->mNumberBuffers, current_maxbuf); + uint32_t limit = min ((uint32_t) ioData->mNumberBuffers, input_maxbuf); for (uint32_t i = 0; i < limit; ++i) { ioData->mBuffers[i].mNumberChannels = 1; @@ -1243,7 +1310,7 @@ AUPlugin::render_callback(AudioUnitRenderActionFlags*, passed to PluginInsert::connect_and_run() */ - ioData->mBuffers[i].mData = current_buffers->get_audio (i).data (cb_offset + current_offset); + ioData->mBuffers[i].mData = input_buffers->get_audio (i).data (cb_offset + input_offset); } cb_offset += inNumberFrames; @@ -1255,45 +1322,95 @@ int AUPlugin::connect_and_run (BufferSet& bufs, ChanMapping in_map, ChanMapping out_map, pframes_t nframes, framecnt_t offset) { Plugin::connect_and_run (bufs, in_map, out_map, nframes, offset); - + AudioUnitRenderActionFlags flags = 0; AudioTimeStamp ts; OSErr err; - uint32_t maxbuf = bufs.count().n_audio(); if (requires_fixed_size_buffers() && (nframes != _last_nframes)) { unit->GlobalReset(); _last_nframes = nframes; } - current_buffers = &bufs; - current_maxbuf = maxbuf; - current_offset = offset; + DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1 in %2 out %3 MIDI %4 bufs %5 (available %6)\n", + name(), input_channels, output_channels, _has_midi_input, + bufs.count(), bufs.available())); + + /* the apparent number of buffers matches our input configuration, but we know that the bufferset + has the capacity to handle our outputs. + */ + + assert (bufs.available() >= ChanCount (DataType::AUDIO, output_channels)); + + input_buffers = &bufs; + input_maxbuf = bufs.count().n_audio(); // number of input audio buffers + input_offset = offset; cb_offset = 0; - buffers->mNumberBuffers = min ((uint32_t) output_channels, maxbuf); + buffers->mNumberBuffers = output_channels; - for (uint32_t i = 0; i < buffers->mNumberBuffers; ++i) { + for (int32_t i = 0; i < output_channels; ++i) { buffers->mBuffers[i].mNumberChannels = 1; buffers->mBuffers[i].mDataByteSize = nframes * sizeof (Sample); + /* setting this to 0 indicates to the AU that it can provide buffers here + if necessary. if it can process in-place, it will use the buffers provided + as input by ::render_callback() above. + + a non-null values tells the plugin to render into the buffer pointed + at by the value. + */ buffers->mBuffers[i].mData = 0; } + if (_has_midi_input) { + + uint32_t nmidi = bufs.count().n_midi(); + + for (uint32_t i = 0; i < nmidi; ++i) { + + /* one MIDI port/buffer only */ + + MidiBuffer& m = bufs.get_midi (i); + + for (MidiBuffer::iterator i = m.begin(); i != m.end(); ++i) { + Evoral::MIDIEvent ev (*i); + + if (ev.is_channel_event()) { + const uint8_t* b = ev.buffer(); + DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1: MIDI event %2\n", name(), ev)); + unit->MIDIEvent (b[0], b[1], b[2], ev.time()); + } + + /* XXX need to handle sysex and other message types */ + } + } + } + + /* does this really mean anything ? + */ + ts.mSampleTime = frames_processed; ts.mFlags = kAudioTimeStampSampleTimeValid; + DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1 render flags=%2 time=%3 nframes=%4 buffers=%5\n", + name(), flags, frames_processed, nframes, buffers->mNumberBuffers)); + if ((err = unit->Render (&flags, &ts, 0, nframes, buffers)) == noErr) { - current_maxbuf = 0; + input_maxbuf = 0; frames_processed += nframes; - - uint32_t limit = min ((uint32_t) buffers->mNumberBuffers, maxbuf); - uint32_t i; + + DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1 rendered %2 buffers of %3\n", + name(), buffers->mNumberBuffers, output_channels)); + + int32_t limit = min ((int32_t) buffers->mNumberBuffers, output_channels); + int32_t i; for (i = 0; i < limit; ++i) { Sample* expected_buffer_address= bufs.get_audio (i).data (offset); if (expected_buffer_address != buffers->mBuffers[i].mData) { - // cerr << "chn " << i << " rendered into " << bufs[i]+offset << endl; + /* plugin provided its own buffer for output so copy it back to where we want it + */ memcpy (expected_buffer_address, buffers->mBuffers[i].mData, nframes * sizeof (Sample)); } } @@ -1302,28 +1419,27 @@ AUPlugin::connect_and_run (BufferSet& bufs, ChanMapping in_map, ChanMapping out_ did not fill/touch/use. */ - for (;i < maxbuf; ++i) { - Sample* buffer_address= bufs.get_audio (i).data (offset); - memset (buffer_address, 0, nframes * sizeof (Sample)); + for (;i < output_channels; ++i) { + memset (bufs.get_audio (i).data (offset), 0, nframes * sizeof (Sample)); } return 0; - } + } - cerr << name() << " render status " << err << endl; + error << string_compose (_("AU: render error for %1, status = %2"), name(), err) << endmsg; return -1; } -OSStatus -AUPlugin::get_beat_and_tempo_callback (Float64* outCurrentBeat, +OSStatus +AUPlugin::get_beat_and_tempo_callback (Float64* outCurrentBeat, Float64* outCurrentTempo) { TempoMap& tmap (_session.tempo_map()); - TRACE_API ("AU calls ardour beat&tempo callback\n"); + DEBUG_TRACE (DEBUG::AudioUnits, "AU calls ardour beat&tempo callback\n"); - /* more than 1 meter or more than 1 tempo means that a simplistic computation - (and interpretation) of a beat position will be incorrect. So refuse to + /* more than 1 meter or more than 1 tempo means that a simplistic computation + (and interpretation) of a beat position will be incorrect. So refuse to offer the value. */ @@ -1332,14 +1448,14 @@ AUPlugin::get_beat_and_tempo_callback (Float64* outCurrentBeat, } Timecode::BBT_Time bbt; - TempoMetric metric = tmap.metric_at (_session.transport_frame() + current_offset); - tmap.bbt_time_with_metric (_session.transport_frame() + current_offset, bbt, metric); + TempoMetric metric = tmap.metric_at (_session.transport_frame() + input_offset); + tmap.bbt_time (_session.transport_frame() + input_offset, bbt); if (outCurrentBeat) { float beat; - beat = metric.meter().beats_per_bar() * bbt.bars; + beat = metric.meter().divisions_per_bar() * bbt.bars; beat += bbt.beats; - beat += bbt.ticks / Meter::ticks_per_beat; + beat += bbt.ticks / Timecode::BBT_Time::ticks_per_beat; *outCurrentBeat = beat; } @@ -1351,7 +1467,7 @@ AUPlugin::get_beat_and_tempo_callback (Float64* outCurrentBeat, } -OSStatus +OSStatus AUPlugin::get_musical_time_location_callback (UInt32* outDeltaSampleOffsetToNextBeat, Float32* outTimeSig_Numerator, UInt32* outTimeSig_Denominator, @@ -1359,10 +1475,10 @@ AUPlugin::get_musical_time_location_callback (UInt32* outDeltaSampleOffsetToNe { TempoMap& tmap (_session.tempo_map()); - TRACE_API ("AU calls ardour music time location callback\n"); + DEBUG_TRACE (DEBUG::AudioUnits, "AU calls ardour music time location callback\n"); - /* more than 1 meter or more than 1 tempo means that a simplistic computation - (and interpretation) of a beat position will be incorrect. So refuse to + /* more than 1 meter or more than 1 tempo means that a simplistic computation + (and interpretation) of a beat position will be incorrect. So refuse to offer the value. */ @@ -1371,21 +1487,22 @@ AUPlugin::get_musical_time_location_callback (UInt32* outDeltaSampleOffsetToNe } Timecode::BBT_Time bbt; - TempoMetric metric = tmap.metric_at (_session.transport_frame() + current_offset); - tmap.bbt_time_with_metric (_session.transport_frame() + current_offset, bbt, metric); + TempoMetric metric = tmap.metric_at (_session.transport_frame() + input_offset); + tmap.bbt_time (_session.transport_frame() + input_offset, bbt); if (outDeltaSampleOffsetToNextBeat) { if (bbt.ticks == 0) { /* on the beat */ *outDeltaSampleOffsetToNextBeat = 0; } else { - *outDeltaSampleOffsetToNextBeat = (UInt32) floor (((Meter::ticks_per_beat - bbt.ticks)/Meter::ticks_per_beat) * // fraction of a beat to next beat - metric.tempo().frames_per_beat(_session.frame_rate(), metric.meter())); // frames per beat + *outDeltaSampleOffsetToNextBeat = (UInt32) + floor (((Timecode::BBT_Time::ticks_per_beat - bbt.ticks)/Timecode::BBT_Time::ticks_per_beat) * // fraction of a beat to next beat + metric.tempo().frames_per_beat (_session.frame_rate())); // frames per beat } } - + if (outTimeSig_Numerator) { - *outTimeSig_Numerator = (UInt32) lrintf (metric.meter().beats_per_bar()); + *outTimeSig_Numerator = (UInt32) lrintf (metric.meter().divisions_per_bar()); } if (outTimeSig_Denominator) { *outTimeSig_Denominator = (UInt32) lrintf (metric.meter().note_divisor()); @@ -1393,20 +1510,20 @@ AUPlugin::get_musical_time_location_callback (UInt32* outDeltaSampleOffsetToNe if (outCurrentMeasureDownBeat) { - /* beat for the start of the bar. + /* beat for the start of the bar. 1|1|0 -> 1 - 2|1|0 -> 1 + beats_per_bar - 3|1|0 -> 1 + (2 * beats_per_bar) - etc. + 2|1|0 -> 1 + divisions_per_bar + 3|1|0 -> 1 + (2 * divisions_per_bar) + etc. */ - *outCurrentMeasureDownBeat = 1 + metric.meter().beats_per_bar() * (bbt.bars - 1); + *outCurrentMeasureDownBeat = 1 + metric.meter().divisions_per_bar() * (bbt.bars - 1); } return noErr; } -OSStatus +OSStatus AUPlugin::get_transport_state_callback (Boolean* outIsPlaying, Boolean* outTransportStateChanged, Float64* outCurrentSampleInTimeLine, @@ -1417,7 +1534,7 @@ AUPlugin::get_transport_state_callback (Boolean* outIsPlaying, bool rolling; float speed; - TRACE_API ("AU calls ardour transport state callback\n"); + DEBUG_TRACE (DEBUG::AudioUnits, "AU calls ardour transport state callback\n"); rolling = _session.transport_rolling(); speed = _session.transport_speed (); @@ -1438,9 +1555,9 @@ AUPlugin::get_transport_state_callback (Boolean* outIsPlaying, if (outCurrentSampleInTimeLine) { /* this assumes that the AU can only call this host callback from render context, - where current_offset is valid. + where input_offset is valid. */ - *outCurrentSampleInTimeLine = _session.transport_frame() + current_offset; + *outCurrentSampleInTimeLine = _session.transport_frame() + input_offset; } if (outIsCycling) { @@ -1454,37 +1571,37 @@ AUPlugin::get_transport_state_callback (Boolean* outIsPlaying, TempoMap& tmap (_session.tempo_map()); - /* more than 1 meter means that a simplistic computation (and interpretation) of + /* more than 1 meter means that a simplistic computation (and interpretation) of a beat position will be incorrect. so refuse to offer the value. */ if (tmap.n_meters() > 1) { return kAudioUnitErr_CannotDoInCurrentContext; } - + Timecode::BBT_Time bbt; if (outCycleStartBeat) { - TempoMetric metric = tmap.metric_at (loc->start() + current_offset); - _session.tempo_map().bbt_time_with_metric (loc->start(), bbt, metric); + TempoMetric metric = tmap.metric_at (loc->start() + input_offset); + _session.tempo_map().bbt_time (loc->start(), bbt); float beat; - beat = metric.meter().beats_per_bar() * bbt.bars; + beat = metric.meter().divisions_per_bar() * bbt.bars; beat += bbt.beats; - beat += bbt.ticks / Meter::ticks_per_beat; - + beat += bbt.ticks / Timecode::BBT_Time::ticks_per_beat; + *outCycleStartBeat = beat; } if (outCycleEndBeat) { - TempoMetric metric = tmap.metric_at (loc->end() + current_offset); - _session.tempo_map().bbt_time_with_metric (loc->end(), bbt, metric); - + TempoMetric metric = tmap.metric_at (loc->end() + input_offset); + _session.tempo_map().bbt_time (loc->end(), bbt); + float beat; - beat = metric.meter().beats_per_bar() * bbt.bars; + beat = metric.meter().divisions_per_bar() * bbt.bars; beat += bbt.beats; - beat += bbt.ticks / Meter::ticks_per_beat; - + beat += bbt.ticks / Timecode::BBT_Time::ticks_per_beat; + *outCycleEndBeat = beat; } } @@ -1551,28 +1668,25 @@ AUPlugin::parameter_is_output (uint32_t) const return false; } -XMLNode& -AUPlugin::get_state() +void +AUPlugin::add_state (XMLNode* root) const { LocaleGuard lg (X_("POSIX")); - XMLNode *root = new XMLNode (state_node_name()); - -#ifdef AU_STATE_SUPPORT CFDataRef xmlData; CFPropertyListRef propertyList; - TRACE_API ("get preset state\n"); + DEBUG_TRACE (DEBUG::AudioUnits, "get preset state\n"); if (unit->GetAUPreset (propertyList) != noErr) { - return *root; + return; } // Convert the property list into XML data. - + xmlData = CFPropertyListCreateXMLData( kCFAllocatorDefault, propertyList); if (!xmlData) { error << _("Could not create XML version of property list") << endmsg; - return *root; + return; } /* re-parse XML bytes to create a libxml++ XMLTree that we can merge into @@ -1589,22 +1703,11 @@ AUPlugin::get_state() CFRelease (xmlData); CFRelease (propertyList); -#else - if (!seen_get_state_message) { - info << string_compose (_("Saving AudioUnit settings is not supported in this build of %1. Consider paying for a newer version"), - PROGRAM_NAME) - << endmsg; - seen_get_state_message = true; - } -#endif - - return *root; } int -AUPlugin::set_state(const XMLNode& node, int /* version*/) +AUPlugin::set_state(const XMLNode& node, int version) { -#ifdef AU_STATE_SUPPORT int ret = -1; CFPropertyListRef propertyList; LocaleGuard lg (X_("POSIX")); @@ -1613,7 +1716,8 @@ AUPlugin::set_state(const XMLNode& node, int /* version*/) error << _("Bad node sent to AUPlugin::set_state") << endmsg; return -1; } - + +#ifndef NO_PLUGIN_STATE if (node.children().empty()) { return -1; } @@ -1634,37 +1738,32 @@ AUPlugin::set_state(const XMLNode& node, int /* version*/) &errorString); CFRelease (xmlData); - + if (propertyList) { - TRACE_API ("set preset\n"); + DEBUG_TRACE (DEBUG::AudioUnits, "set preset\n"); if (unit->SetAUPreset (propertyList) == noErr) { ret = 0; - + /* tell the world */ AudioUnitParameter changedUnit; changedUnit.mAudioUnit = unit->AU(); changedUnit.mParameterID = kAUParameterListener_AnyParameter; AUParameterListenerNotify (NULL, NULL, &changedUnit); - } + } CFRelease (propertyList); } - - return ret; -#else - if (!seen_set_state_message) { - info << string_compose (_("Restoring AudioUnit settings is not supported in this build of %1. Consider paying for a newer version"), - PROGRAM_NAME) - << endmsg; - } - return 0; #endif + + Plugin::set_state (node, version); + return ret; } bool -AUPlugin::load_preset (const string& preset_label) +AUPlugin::load_preset (PresetRecord r) { -#ifdef AU_STATE_SUPPORT + Plugin::load_preset (r); + bool ret = false; CFPropertyListRef propertyList; Glib::ustring path; @@ -1673,15 +1772,15 @@ AUPlugin::load_preset (const string& preset_label) /* look first in "user" presets */ - if ((ux = user_preset_map.find (preset_label)) != user_preset_map.end()) { - + if ((ux = user_preset_map.find (r.label)) != user_preset_map.end()) { + if ((propertyList = load_property_list (ux->second)) != 0) { - TRACE_API ("set preset from user presets\n"); + DEBUG_TRACE (DEBUG::AudioUnits, "set preset from user presets\n"); if (unit->SetAUPreset (propertyList) == noErr) { ret = true; /* tell the world */ - + AudioUnitParameter changedUnit; changedUnit.mAudioUnit = unit->AU(); changedUnit.mParameterID = kAUParameterListener_AnyParameter; @@ -1690,14 +1789,14 @@ AUPlugin::load_preset (const string& preset_label) CFRelease(propertyList); } - } else if ((fx = factory_preset_map.find (preset_label)) != factory_preset_map.end()) { - + } else if ((fx = factory_preset_map.find (r.label)) != factory_preset_map.end()) { + AUPreset preset; - + preset.presetNumber = fx->second; preset.presetName = CFStringCreateWithCString (kCFAllocatorDefault, fx->first.c_str(), kCFStringEncodingUTF8); - - TRACE_API ("set preset from factory presets\n"); + + DEBUG_TRACE (DEBUG::AudioUnits, "set preset from factory presets\n"); if (unit->SetPresentPreset (preset) == 0) { ret = true; @@ -1710,31 +1809,25 @@ AUPlugin::load_preset (const string& preset_label) AUParameterListenerNotify (NULL, NULL, &changedUnit); } } - + return ret; -#else - if (!seen_loading_message) { - info << string_compose (_("Loading AudioUnit presets is not supported in this build of %1. Consider paying for a newer version"), - PROGRAM_NAME) - << endmsg; - seen_loading_message = true; - } - return true; -#endif } -bool -AUPlugin::save_preset (string preset_name) +void +AUPlugin::do_remove_preset (std::string) +{ +} + +string +AUPlugin::do_save_preset (string preset_name) { -#ifdef AU_STATE_SUPPORT CFPropertyListRef propertyList; vector v; Glib::ustring user_preset_path; - bool ret = true; std::string m = maker(); std::string n = name(); - + strip_whitespace_edges (m); strip_whitespace_edges (n); @@ -1744,51 +1837,42 @@ AUPlugin::save_preset (string preset_name) v.push_back ("Presets"); v.push_back (m); v.push_back (n); - + user_preset_path = Glib::build_filename (v); if (g_mkdir_with_parents (user_preset_path.c_str(), 0775) < 0) { error << string_compose (_("Cannot create user plugin presets folder (%1)"), user_preset_path) << endmsg; - return false; + return string(); } - TRACE_API ("get current preset\n"); + DEBUG_TRACE (DEBUG::AudioUnits, "get current preset\n"); if (unit->GetAUPreset (propertyList) != noErr) { - return false; + return string(); } // add the actual preset name */ v.push_back (preset_name + preset_suffix); - + // rebuild user_preset_path = Glib::build_filename (v); - + set_preset_name_in_plist (propertyList, preset_name); if (save_property_list (propertyList, user_preset_path)) { error << string_compose (_("Saving plugin state to %1 failed"), user_preset_path) << endmsg; - ret = false; + return string(); } CFRelease(propertyList); - return ret; -#else - if (!seen_saving_message) { - info << string_compose (_("Saving AudioUnit presets is not supported in this build of %1. Consider paying for a newer version"), - PROGRAM_NAME) - << endmsg; - seen_saving_message = true; - } - return false; -#endif + return string ("file:///") + user_preset_path; } //----------------------------------------------------------------------------- // this is just a little helper function used by GetAUComponentDescriptionFromPresetFile() -static SInt32 +static SInt32 GetDictionarySInt32Value(CFDictionaryRef inAUStateDictionary, CFStringRef inDictionaryKey, Boolean * outSuccess) { CFNumberRef cfNumber; @@ -1816,46 +1900,46 @@ GetDictionarySInt32Value(CFDictionaryRef inAUStateDictionary, CFStringRef inDict return 0; } -static OSStatus +static OSStatus GetAUComponentDescriptionFromStateData(CFPropertyListRef inAUStateData, ComponentDescription * outComponentDescription) { - CFDictionaryRef auStateDictionary; - ComponentDescription tempDesc = {0,0,0,0,0}; - SInt32 versionValue; - Boolean gotValue; + CFDictionaryRef auStateDictionary; + ComponentDescription tempDesc = {0,0,0,0,0}; + SInt32 versionValue; + Boolean gotValue; - if ( (inAUStateData == NULL) || (outComponentDescription == NULL) ) - return paramErr; - - // the property list for AU state data must be of the dictionary type - if (CFGetTypeID(inAUStateData) != CFDictionaryGetTypeID()) { - return kAudioUnitErr_InvalidPropertyValue; + if ( (inAUStateData == NULL) || (outComponentDescription == NULL) ) + return paramErr; + + // the property list for AU state data must be of the dictionary type + if (CFGetTypeID(inAUStateData) != CFDictionaryGetTypeID()) { + return kAudioUnitErr_InvalidPropertyValue; } - auStateDictionary = (CFDictionaryRef)inAUStateData; + auStateDictionary = (CFDictionaryRef)inAUStateData; - // first check to make sure that the version of the AU state data is one that we know understand - // XXX should I really do this? later versions would probably still hold these ID keys, right? - versionValue = GetDictionarySInt32Value(auStateDictionary, CFSTR(kAUPresetVersionKey), &gotValue); + // first check to make sure that the version of the AU state data is one that we know understand + // XXX should I really do this? later versions would probably still hold these ID keys, right? + versionValue = GetDictionarySInt32Value(auStateDictionary, CFSTR(kAUPresetVersionKey), &gotValue); - if (!gotValue) { - return kAudioUnitErr_InvalidPropertyValue; + if (!gotValue) { + return kAudioUnitErr_InvalidPropertyValue; } #define kCurrentSavedStateVersion 0 - if (versionValue != kCurrentSavedStateVersion) { - return kAudioUnitErr_InvalidPropertyValue; + if (versionValue != kCurrentSavedStateVersion) { + return kAudioUnitErr_InvalidPropertyValue; } - // grab the ComponentDescription values from the AU state data - tempDesc.componentType = (OSType) GetDictionarySInt32Value(auStateDictionary, CFSTR(kAUPresetTypeKey), NULL); - tempDesc.componentSubType = (OSType) GetDictionarySInt32Value(auStateDictionary, CFSTR(kAUPresetSubtypeKey), NULL); - tempDesc.componentManufacturer = (OSType) GetDictionarySInt32Value(auStateDictionary, CFSTR(kAUPresetManufacturerKey), NULL); - // zero values are illegit for specific ComponentDescriptions, so zero for any value means that there was an error - if ( (tempDesc.componentType == 0) || (tempDesc.componentSubType == 0) || (tempDesc.componentManufacturer == 0) ) - return kAudioUnitErr_InvalidPropertyValue; + // grab the ComponentDescription values from the AU state data + tempDesc.componentType = (OSType) GetDictionarySInt32Value(auStateDictionary, CFSTR(kAUPresetTypeKey), NULL); + tempDesc.componentSubType = (OSType) GetDictionarySInt32Value(auStateDictionary, CFSTR(kAUPresetSubtypeKey), NULL); + tempDesc.componentManufacturer = (OSType) GetDictionarySInt32Value(auStateDictionary, CFSTR(kAUPresetManufacturerKey), NULL); + // zero values are illegit for specific ComponentDescriptions, so zero for any value means that there was an error + if ( (tempDesc.componentType == 0) || (tempDesc.componentSubType == 0) || (tempDesc.componentManufacturer == 0) ) + return kAudioUnitErr_InvalidPropertyValue; - *outComponentDescription = tempDesc; - return noErr; + *outComponentDescription = tempDesc; + return noErr; } @@ -1864,7 +1948,7 @@ static bool au_preset_filter (const string& str, void* arg) /* Not a dotfile, has a prefix before a period, suffix is aupreset */ bool ret; - + ret = (str[0] != '.' && str.length() > 9 && str.find (preset_suffix) == (str.length() - preset_suffix.length())); if (ret && arg) { @@ -1889,32 +1973,32 @@ static bool au_preset_filter (const string& str, void* arg) match = m; match += '/'; match += n; - + ret = str.find (match) != string::npos; } } - + return ret; } -bool +bool check_and_get_preset_name (Component component, const string& pathstr, string& preset_name) { - OSStatus status; - CFPropertyListRef plist; + OSStatus status; + CFPropertyListRef plist; ComponentDescription presetDesc; bool ret = false; - + plist = load_property_list (pathstr); if (!plist) { return ret; } - + // get the ComponentDescription from the AU preset file - + status = GetAUComponentDescriptionFromStateData(plist, &presetDesc); - + if (status == noErr) { if (ComponentAndDescriptionMatch_Loosely(component, &presetDesc)) { @@ -1937,7 +2021,7 @@ check_and_get_preset_name (Component component, const string& pathstr, string& p } } } - } + } } CFRelease (plist); @@ -1949,34 +2033,30 @@ std::string AUPlugin::current_preset() const { string preset_name; - -#ifdef AU_STATE_SUPPORT + CFPropertyListRef propertyList; - TRACE_API ("get current preset for current_preset()\n"); + DEBUG_TRACE (DEBUG::AudioUnits, "get current preset for current_preset()\n"); if (unit->GetAUPreset (propertyList) == noErr) { preset_name = get_preset_name_in_plist (propertyList); CFRelease(propertyList); } -#endif + return preset_name; } -vector -AUPlugin::get_presets () +void +AUPlugin::find_presets () { - vector presets; - -#ifdef AU_STATE_SUPPORT vector* preset_files; PathScanner scanner; user_preset_map.clear (); preset_files = scanner (preset_search_path, au_preset_filter, this, true, true, -1, true); - + if (!preset_files) { - return presets; + return; } for (vector::iterator x = preset_files->begin(); x != preset_files->end(); ++x) { @@ -1996,28 +2076,26 @@ AUPlugin::get_presets () if (check_and_get_preset_name (get_comp()->Comp(), path, preset_name)) { user_preset_map[preset_name] = path; - } + } delete *x; } delete preset_files; - /* now fill the vector with the names we have */ + /* now fill the vector with the names we have */ for (UserPresetMap::iterator i = user_preset_map.begin(); i != user_preset_map.end(); ++i) { - presets.push_back (Plugin::PresetRecord (i->second, i->first)); + _presets.insert (make_pair (i->second, Plugin::PresetRecord (i->second, i->first))); } - /* add factory presets */ + /* add factory presets */ for (FactoryPresetMap::iterator i = factory_preset_map.begin(); i != factory_preset_map.end(); ++i) { - presets.push_back (Plugin::PresetRecord ("", i->first)); + /* XXX: dubious */ + string const uri = string_compose ("%1", _presets.size ()); + _presets.insert (make_pair (uri, Plugin::PresetRecord (uri, i->first, i->second))); } - -#endif - - return presets; } bool @@ -2045,22 +2123,24 @@ AUPluginInfo::load (Session& session) try { PluginPtr plugin; - TRACE_API ("load AU as a component\n"); + DEBUG_TRACE (DEBUG::AudioUnits, "load AU as a component\n"); boost::shared_ptr comp (new CAComponent(*descriptor)); - + if (!comp->IsValid()) { error << ("AudioUnit: not a valid Component") << endmsg; } else { plugin.reset (new AUPlugin (session.engine(), session, comp)); } - + AUPluginInfo *aup = new AUPluginInfo (*this); + DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("plugin info for %1 = %2\n", this, aup)); plugin->set_info (PluginInfoPtr (aup)); boost::dynamic_pointer_cast (plugin)->set_fixed_size_buffers (aup->creator == "Universal Audio"); return plugin; } catch (failed_constructor &err) { + DEBUG_TRACE (DEBUG::AudioUnits, "failed to load component/plugin\n"); return PluginPtr (); } } @@ -2068,7 +2148,7 @@ AUPluginInfo::load (Session& session) Glib::ustring AUPluginInfo::au_cache_path () { - return Glib::build_filename (ARDOUR::user_config_directory().to_string(), "au_cache"); + return Glib::build_filename (ARDOUR::user_config_directory(), "au_cache"); } PluginInfoList* @@ -2081,12 +2161,14 @@ AUPluginInfo::discover () } PluginInfoList* plugs = new PluginInfoList; - + discover_fx (*plugs); discover_music (*plugs); discover_generators (*plugs); discover_instruments (*plugs); + DEBUG_TRACE (DEBUG::PluginManager, string_compose ("AU: discovered %1 plugins\n", plugs->size())); + return plugs; } @@ -2153,7 +2235,7 @@ AUPluginInfo::discover_by_description (PluginInfoList& plugs, CAComponentDescrip CAComponentDescription temp; GetComponentInfo (comp, &temp, NULL, NULL, NULL); - AUPluginInfoPtr info (new AUPluginInfo + AUPluginInfoPtr info (new AUPluginInfo (boost::shared_ptr (new CAComponentDescription(temp)))); /* although apple designed the subtype field to be a "category" indicator, @@ -2161,7 +2243,7 @@ AUPluginInfo::discover_by_description (PluginInfoList& plugs, CAComponentDescrip there are no categories for AudioUnits. However, to keep the plugins showing up under "categories", we'll use the "type" as a high level selector. - + NOTE: no panners, format converters or i/o AU's for our purposes */ @@ -2195,7 +2277,7 @@ AUPluginInfo::discover_by_description (PluginInfoList& plugs, CAComponentDescrip } AUPluginInfo::get_names (temp, info->name, info->creator); - + info->type = ARDOUR::AudioUnit; info->unique_id = stringify_descriptor (*info->descriptor); @@ -2207,35 +2289,55 @@ AUPluginInfo::discover_by_description (PluginInfoList& plugs, CAComponentDescrip if (cacomp.GetResourceVersion (info->version) != noErr) { info->version = 0; } - + if (cached_io_configuration (info->unique_id, info->version, cacomp, info->cache, info->name)) { /* here we have to map apple's wildcard system to a simple pair of values. in ::can_do() we use the whole system, but here we need a single pair of values. XXX probably means we should remove any use of these values. + + for now, if the plugin provides a wildcard, treat it as 1. we really + don't care much, because whether we can handle an i/o configuration + depends upon ::can_support_io_configuration(), not these counts. + + they exist because other parts of ardour try to present i/o configuration + info to the user, which should perhaps be revisited. */ - info->n_inputs.set (DataType::AUDIO, info->cache.io_configs.front().first); - info->n_outputs.set (DataType::AUDIO, info->cache.io_configs.front().second); + int32_t possible_in = info->cache.io_configs.front().first; + int32_t possible_out = info->cache.io_configs.front().second; + + if (possible_in > 0) { + info->n_inputs.set (DataType::AUDIO, possible_in); + } else { + info->n_inputs.set (DataType::AUDIO, 1); + } - cerr << "detected AU: " << info->name.c_str() << " (" << info->cache.io_configs.size() << " i/o configurations) - " << info->unique_id << endl; + if (possible_out > 0) { + info->n_outputs.set (DataType::AUDIO, possible_out); + } else { + info->n_outputs.set (DataType::AUDIO, 1); + } + + DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("detected AU %1 with %2 i/o configurations - %3\n", + info->name.c_str(), info->cache.io_configs.size(), info->unique_id)); plugs.push_back (info); } else { error << string_compose (_("Cannot get I/O configuration info for AU %1"), info->name) << endmsg; } - + comp = FindNextComponent (comp, &desc); } } bool -AUPluginInfo::cached_io_configuration (const std::string& unique_id, +AUPluginInfo::cached_io_configuration (const std::string& unique_id, UInt32 version, - CAComponent& comp, - AUPluginCachedInfo& cinfo, + CAComponent& comp, + AUPluginCachedInfo& cinfo, const std::string& name) { std::string id; @@ -2262,9 +2364,9 @@ AUPluginInfo::cached_io_configuration (const std::string& unique_id, AUChannelInfo* channel_info; UInt32 cnt; int ret; - + ARDOUR::BootMessage (string_compose (_("Checking AudioUnit: %1"), name)); - + try { if (CAAudioUnit::Open (comp, unit) != noErr) { @@ -2274,25 +2376,27 @@ AUPluginInfo::cached_io_configuration (const std::string& unique_id, } catch (...) { warning << string_compose (_("Could not load AU plugin %1 - ignored"), name) << endmsg; - cerr << string_compose (_("Could not load AU plugin %1 - ignored"), name) << endl; return false; } - - TRACE_API ("get AU channel info\n"); + + DEBUG_TRACE (DEBUG::AudioUnits, "get AU channel info\n"); if ((ret = unit.GetChannelInfo (&channel_info, cnt)) < 0) { return false; } if (ret > 0) { - /* no explicit info available */ + + /* no explicit info available, so default to 1in/1out */ + + /* XXX this is wrong. we should be indicating wildcard values */ cinfo.io_configs.push_back (pair (-1, -1)); } else { - + /* store each configuration */ - + for (uint32_t n = 0; n < cnt; ++n) { cinfo.io_configs.push_back (pair (channel_info[n].inChannels, channel_info[n].outChannels)); @@ -2322,7 +2426,7 @@ AUPluginInfo::save_cached_info () node = new XMLNode (X_("AudioUnitPluginCache")); node->add_property( "version", AU_CACHE_VERSION ); - + for (map::iterator i = cached_info.begin(); i != cached_info.end(); ++i) { XMLNode* parent = new XMLNode (X_("plugin")); parent->add_property ("id", i->first); @@ -2349,7 +2453,7 @@ AUPluginInfo::save_cached_info () if (!tree.write (path)) { error << string_compose (_("could not save AU cache to %1"), path) << endmsg; - unlink (path.c_str()); + ::g_unlink (path.c_str()); } } @@ -2358,7 +2462,7 @@ AUPluginInfo::load_cached_info () { Glib::ustring path = au_cache_path (); XMLTree tree; - + if (!Glib::file_test (path, Glib::FILE_TEST_EXISTS)) { return 0; } @@ -2367,28 +2471,28 @@ AUPluginInfo::load_cached_info () error << "au_cache is not a valid XML file. AU plugins will be re-scanned" << endmsg; return -1; } - + const XMLNode* root (tree.root()); if (root->name() != X_("AudioUnitPluginCache")) { return -1; } - + //initial version has incorrectly stored i/o info, and/or garbage chars. const XMLProperty* version = root->property(X_("version")); if (! ((version != NULL) && (version->value() == X_(AU_CACHE_VERSION)))) { error << "au_cache is not correct version. AU plugins will be re-scanned" << endmsg; return -1; } - + cached_info.clear (); const XMLNodeList children = root->children(); for (XMLNodeConstIterator iter = children.begin(); iter != children.end(); ++iter) { - + const XMLNode* child = *iter; - + if (child->name() == X_("plugin")) { const XMLNode* gchild; @@ -2398,7 +2502,7 @@ AUPluginInfo::load_cached_info () if (!prop) { continue; } - + string id = prop->value(); string fixed; string version; @@ -2416,7 +2520,7 @@ AUPluginInfo::load_cached_info () if (fixed.empty()) { error << string_compose (_("Your AudioUnit configuration cache contains an AU plugin whose ID cannot be understood - ignored (%1)"), id) << endmsg; continue; - } + } id = fixed; id += version; @@ -2438,7 +2542,7 @@ AUPluginInfo::load_cached_info () ((oprop = gchild->property (X_("out"))) != 0)) { in = atoi (iprop->value()); out = atoi (oprop->value()); - + cinfo.io_configs.push_back (pair (in, out)); } } @@ -2474,16 +2578,16 @@ AUPluginInfo::get_names (CAComponentDescription& comp_desc, std::string& name, s DisposeHandle(nameHandle); } } - + // if Marc-style fails, do the original way if (itemName == NULL) { CFStringRef compTypeString = UTCreateStringForOSType(comp_desc.componentType); CFStringRef compSubTypeString = UTCreateStringForOSType(comp_desc.componentSubType); CFStringRef compManufacturerString = UTCreateStringForOSType(comp_desc.componentManufacturer); - - itemName = CFStringCreateWithFormat(kCFAllocatorDefault, NULL, CFSTR("%@ - %@ - %@"), + + itemName = CFStringCreateWithFormat(kCFAllocatorDefault, NULL, CFSTR("%@ - %@ - %@"), compTypeString, compManufacturerString, compSubTypeString); - + if (compTypeString != NULL) CFRelease(compTypeString); if (compSubTypeString != NULL) @@ -2491,7 +2595,7 @@ AUPluginInfo::get_names (CAComponentDescription& comp_desc, std::string& name, s if (compManufacturerString != NULL) CFRelease(compManufacturerString); } - + string str = CFStringRefToStdString(itemName); string::size_type colon = str.find (':'); @@ -2555,3 +2659,146 @@ AUPluginInfo::is_instrument () const { return descriptor->IsMusicDevice(); } + +void +AUPlugin::set_info (PluginInfoPtr info) +{ + Plugin::set_info (info); + + AUPluginInfoPtr pinfo = boost::dynamic_pointer_cast(get_info()); + _has_midi_input = pinfo->needs_midi_input (); + _has_midi_output = false; +} + +int +AUPlugin::create_parameter_listener (AUEventListenerProc cb, void* arg, float interval_secs) +{ +#ifdef WITH_CARBON + CFRunLoopRef run_loop = (CFRunLoopRef) GetCFRunLoopFromEventLoop(GetCurrentEventLoop()); +#else + CFRunLoopRef run_loop = CFRunLoopGetCurrent(); +#endif + CFStringRef loop_mode = kCFRunLoopDefaultMode; + + if (AUEventListenerCreate (cb, arg, run_loop, loop_mode, interval_secs, interval_secs, &_parameter_listener) != noErr) { + return -1; + } + + _parameter_listener_arg = arg; + + return 0; +} + +int +AUPlugin::listen_to_parameter (uint32_t param_id) +{ + AudioUnitEvent event; + + if (!_parameter_listener || param_id >= descriptors.size()) { + return -2; + } + + event.mEventType = kAudioUnitEvent_ParameterValueChange; + event.mArgument.mParameter.mAudioUnit = unit->AU(); + event.mArgument.mParameter.mParameterID = descriptors[param_id].id; + event.mArgument.mParameter.mScope = descriptors[param_id].scope; + event.mArgument.mParameter.mElement = descriptors[param_id].element; + + if (AUEventListenerAddEventType (_parameter_listener, _parameter_listener_arg, &event) != noErr) { + return -1; + } + + event.mEventType = kAudioUnitEvent_BeginParameterChangeGesture; + event.mArgument.mParameter.mAudioUnit = unit->AU(); + event.mArgument.mParameter.mParameterID = descriptors[param_id].id; + event.mArgument.mParameter.mScope = descriptors[param_id].scope; + event.mArgument.mParameter.mElement = descriptors[param_id].element; + + if (AUEventListenerAddEventType (_parameter_listener, _parameter_listener_arg, &event) != noErr) { + return -1; + } + + event.mEventType = kAudioUnitEvent_EndParameterChangeGesture; + event.mArgument.mParameter.mAudioUnit = unit->AU(); + event.mArgument.mParameter.mParameterID = descriptors[param_id].id; + event.mArgument.mParameter.mScope = descriptors[param_id].scope; + event.mArgument.mParameter.mElement = descriptors[param_id].element; + + if (AUEventListenerAddEventType (_parameter_listener, _parameter_listener_arg, &event) != noErr) { + return -1; + } + + return 0; +} + +int +AUPlugin::end_listen_to_parameter (uint32_t param_id) +{ + AudioUnitEvent event; + + if (!_parameter_listener || param_id >= descriptors.size()) { + return -2; + } + + event.mEventType = kAudioUnitEvent_ParameterValueChange; + event.mArgument.mParameter.mAudioUnit = unit->AU(); + event.mArgument.mParameter.mParameterID = descriptors[param_id].id; + event.mArgument.mParameter.mScope = descriptors[param_id].scope; + event.mArgument.mParameter.mElement = descriptors[param_id].element; + + if (AUEventListenerRemoveEventType (_parameter_listener, _parameter_listener_arg, &event) != noErr) { + return -1; + } + + event.mEventType = kAudioUnitEvent_BeginParameterChangeGesture; + event.mArgument.mParameter.mAudioUnit = unit->AU(); + event.mArgument.mParameter.mParameterID = descriptors[param_id].id; + event.mArgument.mParameter.mScope = descriptors[param_id].scope; + event.mArgument.mParameter.mElement = descriptors[param_id].element; + + if (AUEventListenerRemoveEventType (_parameter_listener, _parameter_listener_arg, &event) != noErr) { + return -1; + } + + event.mEventType = kAudioUnitEvent_EndParameterChangeGesture; + event.mArgument.mParameter.mAudioUnit = unit->AU(); + event.mArgument.mParameter.mParameterID = descriptors[param_id].id; + event.mArgument.mParameter.mScope = descriptors[param_id].scope; + event.mArgument.mParameter.mElement = descriptors[param_id].element; + + if (AUEventListenerRemoveEventType (_parameter_listener, _parameter_listener_arg, &event) != noErr) { + return -1; + } + + return 0; +} + +void +AUPlugin::_parameter_change_listener (void* arg, void* src, const AudioUnitEvent* event, UInt64 host_time, Float32 new_value) +{ + ((AUPlugin*) arg)->parameter_change_listener (arg, src, event, host_time, new_value); +} + +void +AUPlugin::parameter_change_listener (void* /*arg*/, void* /*src*/, const AudioUnitEvent* event, UInt64 /*host_time*/, Float32 new_value) +{ + ParameterMap::iterator i; + + if ((i = parameter_map.find (event->mArgument.mParameter.mParameterID)) == parameter_map.end()) { + return; + } + + switch (event->mEventType) { + case kAudioUnitEvent_BeginParameterChangeGesture: + StartTouch (i->second); + break; + case kAudioUnitEvent_EndParameterChangeGesture: + EndTouch (i->second); + break; + case kAudioUnitEvent_ParameterValueChange: + ParameterChanged (i->second, new_value); + break; + default: + break; + } +}