X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Faudio_unit.cc;h=ea2e93c5a07d92717e7adf0b61e8e8083b53218f;hb=9cbe231b920d92a2e44e08962a3ed6870b962f34;hp=3eb46721607072e874d5254fd27e3b5700afb845;hpb=4d112a8e6b90fa64a5cd333042044768111ba994;p=ardour.git diff --git a/libs/ardour/audio_unit.cc b/libs/ardour/audio_unit.cc index 3eb4672160..ea2e93c5a0 100644 --- a/libs/ardour/audio_unit.cc +++ b/libs/ardour/audio_unit.cc @@ -1,5 +1,6 @@ /* - Copyright (C) 2006 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 it under the terms of the GNU General Public License as published by @@ -20,28 +21,43 @@ #include #include #include +#include +#include #include "pbd/transmitter.h" #include "pbd/xml++.h" +#include "pbd/convert.h" #include "pbd/whitespace.h" #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" -#include -#include +#include "appleutility/CAAudioUnit.h" +#include "appleutility/CAAUParameter.h" #include #include +#include +#include +#ifdef WITH_CARBON +#include +#endif #include "i18n.h" @@ -49,13 +65,6 @@ using namespace std; using namespace PBD; using namespace ARDOUR; -#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"; @@ -70,11 +79,61 @@ _render_callback(void *userData, UInt32 inNumberFrames, AudioBufferList* ioData) { - return ((AUPlugin*)userData)->render_callback (ioActionFlags, inTimeStamp, inBusNumber, inNumberFrames, ioData); + if (userData) { + return ((AUPlugin*)userData)->render_callback (ioActionFlags, inTimeStamp, inBusNumber, inNumberFrames, ioData); + } + return paramErr; +} + +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 +_get_musical_time_location_callback (void * userData, + UInt32 * outDeltaSampleOffsetToNextBeat, + Float32 * outTimeSig_Numerator, + UInt32 * outTimeSig_Denominator, + Float64 * outCurrentMeasureDownBeat) +{ + if (userData) { + return ((AUPlugin*)userData)->get_musical_time_location_callback (outDeltaSampleOffsetToNextBeat, + outTimeSig_Numerator, + outTimeSig_Denominator, + outCurrentMeasureDownBeat); + } + return paramErr; } +static OSStatus +_get_transport_state_callback (void* userData, + Boolean* outIsPlaying, + Boolean* outTransportStateChanged, + Float64* outCurrentSampleInTimeLine, + Boolean* outIsCycling, + Float64* outCycleStartBeat, + Float64* outCycleEndBeat) +{ + if (userData) { + return ((AUPlugin*)userData)->get_transport_state_callback ( + outIsPlaying, outTransportStateChanged, + outCurrentSampleInTimeLine, outIsCycling, + outCycleStartBeat, outCycleEndBeat); + } + return paramErr; +} + + static int -save_property_list (CFPropertyListRef propertyList, string path) +save_property_list (CFPropertyListRef propertyList, Glib::ustring path) { CFDataRef xmlData; @@ -94,23 +153,19 @@ save_property_list (CFPropertyListRef propertyList, string 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; } size_t cnt = CFDataGetLength (xmlData); - if (write (fd, CFDataGetBytePtr (xmlData), cnt) != cnt) { + if (write (fd, CFDataGetBytePtr (xmlData), cnt) != (ssize_t) cnt) { CFRelease (xmlData); close (fd); return -1; @@ -122,10 +177,10 @@ save_property_list (CFPropertyListRef propertyList, string path) static CFPropertyListRef -load_property_list (string path) +load_property_list (Glib::ustring path) { int fd; - CFPropertyListRef propertyList; + CFPropertyListRef propertyList = 0; CFDataRef xmlData; CFStringRef errorString; @@ -280,18 +335,24 @@ Boolean ComponentAndDescriptionMatch_Loosely(Component inComponent, const Compon AUPlugin::AUPlugin (AudioEngine& engine, Session& session, boost::shared_ptr _comp) - : Plugin (engine, session), - comp (_comp), - unit (new CAAudioUnit), - initialized (false), - buffers (0), - current_maxbuf (0), - current_offset (0), - current_buffers (0), - frames_processed (0) + : Plugin (engine, session) + , comp (_comp) + , unit (new CAAudioUnit) + , initialized (false) + , _current_block_size (0) + , _requires_fixed_size_buffers (false) + , buffers (0) + , input_maxbuf (0) + , input_offset (0) + , input_buffers (0) + , frames_processed (0) + , _parameter_listener (0) + , _parameter_listener_arg (0) + , last_transport_rolling (false) + , last_transport_speed (0.0) { if (!preset_search_path_initialized) { - string p = Glib::get_home_dir(); + Glib::ustring p = Glib::get_home_dir(); p += "/Library/Audio/Presets:"; p += preset_search_path; preset_search_path = p; @@ -301,16 +362,22 @@ AUPlugin::AUPlugin (AudioEngine& engine, Session& session, boost::shared_ptrUninitialize (); } - free (buffers); + if (buffers) { + free (buffers); + } } +void +AUPlugin::discover_factory_presets () +{ + CFArrayRef presets; + UInt32 dataSize; + Boolean isWritable; + OSStatus err; + + 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) { + error << string_compose (_("cannot get factory preset info: errcode %1"), err) << endmsg; + return; + } + + if (!presets) { + return; + } + + CFIndex cnt = CFArrayGetCount (presets); + + for (CFIndex i = 0; i < cnt; ++i) { + AUPreset* preset = (AUPreset*) CFArrayGetValueAtIndex (presets, i); + + string name = CFStringRefToStdString (preset->presetName); + factory_preset_map[name] = preset->presetNumber; + } + + CFRelease (presets); +} void AUPlugin::init () { OSErr err; + /* these keep track of *configured* channel set up, + not potential set ups. + */ + + input_channels = -1; + output_channels = -1; + try { + DEBUG_TRACE (DEBUG::AudioUnits, "opening AudioUnit\n"); err = CAAudioUnit::Open (*(comp.get()), *unit); } catch (...) { error << _("Exception thrown during AudioUnit plugin loading - plugin ignored") << endmsg; @@ -343,36 +461,57 @@ AUPlugin::init () throw failed_constructor (); } - AURenderCallbackStruct renderCallbackInfo; - - renderCallbackInfo.inputProc = _render_callback; - renderCallbackInfo.inputProcRefCon = this; - - 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(); - } - + DEBUG_TRACE (DEBUG::AudioUnits, "count global elements\n"); unit->GetElementCount (kAudioUnitScope_Global, global_elements); + DEBUG_TRACE (DEBUG::AudioUnits, "count input elements\n"); unit->GetElementCount (kAudioUnitScope_Input, input_elements); + DEBUG_TRACE (DEBUG::AudioUnits, "count output elements\n"); unit->GetElementCount (kAudioUnitScope_Output, output_elements); - /* these keep track of *configured* channel set up, - not potential set ups. - */ + 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 */ + + HostCallbackInfo info; + memset (&info, 0, sizeof (HostCallbackInfo)); + info.hostUserData = this; + info.beatAndTempoProc = _get_beat_and_tempo_callback; + info.musicalTimeLocationProc = _get_musical_time_location_callback; + info.transportStateProc = _get_transport_state_callback; - input_channels = ChanCount::ZERO; - output_channels = ChanCount::ZERO; + //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)); - if (_set_block_size (_session.get_block_size())) { + if (set_block_size (_session.get_block_size())) { error << _("AUPlugin: cannot set processing block size") << endmsg; throw failed_constructor(); } + create_parameter_listener (AUPlugin::_parameter_change_listener, this, 0.05); discover_parameters (); + discover_factory_presets (); - Plugin::setup_controls (); + // Plugin::setup_controls (); } void @@ -466,10 +605,10 @@ AUPlugin::discover_parameters () d.upper = info.maxValue; d.default_value = info.defaultValue; - d.integer_step = (info.unit & kAudioUnitParameterUnit_Indexed); - d.toggled = (info.unit & kAudioUnitParameterUnit_Boolean) || + d.integer_step = (info.unit == kAudioUnitParameterUnit_Indexed); + d.toggled = (info.unit == kAudioUnitParameterUnit_Boolean) || (d.integer_step && ((d.upper - d.lower) == 1.0)); - d.sr_dependent = (info.unit & kAudioUnitParameterUnit_SampleFrames); + d.sr_dependent = (info.unit == kAudioUnitParameterUnit_SampleFrames); d.automatable = !d.toggled && !(info.flags & kAudioUnitParameterFlag_NonRealTime) && (info.flags & kAudioUnitParameterFlag_IsWritable); @@ -484,11 +623,119 @@ 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); } } } +static unsigned int +four_ints_to_four_byte_literal (unsigned char n[4]) +{ + /* this is actually implementation dependent. sigh. this is what gcc + and quite a few others do. + */ + return ((n[0] << 24) + (n[1] << 16) + (n[2] << 8) + n[3]); +} + +std::string +AUPlugin::maybe_fix_broken_au_id (const std::string& id) +{ + if (isdigit (id[0])) { + return 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. + Then put it back together. + */ + + + unsigned char nascent[4]; + const char* cstr = id.c_str(); + const char* estr = cstr + id.size(); + uint32_t n[3]; + int in; + int next_int; + char short_buf[3]; + stringstream s; + + in = 0; + next_int = 0; + short_buf[2] = '\0'; + + while (*cstr && next_int < 4) { + + if (*cstr == '\\') { + + if (estr - cstr < 3) { + + /* too close to the end for \xNN parsing: treat as literal characters */ + + 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 */ + nascent[in] = *cstr; + ++cstr; + ++in; + } + } + + } else { + + nascent[in] = *cstr; + ++cstr; + ++in; + } + + if (in && (in % 4 == 0)) { + /* nascent is ready */ + n[next_int] = four_ints_to_four_byte_literal (nascent); + in = 0; + next_int++; + + /* swallow space-hyphen-space */ + + if (next_int < 3) { + ++cstr; + ++cstr; + ++cstr; + } + } + } + + if (next_int != 3) { + goto err; + } + + s << n[0] << '-' << n[1] << '-' << n[2]; + + return s.str(); + + err: + return string(); +} + string AUPlugin::unique_id () const { @@ -517,8 +764,8 @@ AUPlugin::default_value (uint32_t port) return 0; } -nframes_t -AUPlugin::latency () const +framecnt_t +AUPlugin::signal_latency () const { return unit->Latency() * _session.frame_rate(); } @@ -526,10 +773,32 @@ AUPlugin::latency () const void AUPlugin::set_parameter (uint32_t which, float val) { - if (which < descriptors.size()) { - const AUParameterDescriptor& d (descriptors[which]); - unit->SetParameter (d.id, d.scope, d.element, val); + if (which >= descriptors.size()) { + return; + } + + if (get_parameter(which) == val) { + return; } + + 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); + + /* tell the world what we did */ + + 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 @@ -538,6 +807,7 @@ AUPlugin::get_parameter (uint32_t which) const float val = 0.0; if (which < descriptors.size()) { const AUParameterDescriptor& d (descriptors[which]); + // 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; @@ -569,6 +839,7 @@ AUPlugin::activate () { if (!initialized) { OSErr err; + 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 { @@ -581,30 +852,40 @@ AUPlugin::activate () void AUPlugin::deactivate () { - unit->GlobalReset (); + DEBUG_TRACE (DEBUG::AudioUnits, "call Uninitialize in deactivate()\n"); + unit->Uninitialize (); + initialized = false; } void -AUPlugin::set_block_size (nframes_t nframes) +AUPlugin::flush () { - _set_block_size (nframes); + DEBUG_TRACE (DEBUG::AudioUnits, "call Reset in flush()\n"); + unit->GlobalReset (); } +bool +AUPlugin::requires_fixed_size_buffers() const +{ + return _requires_fixed_size_buffers; +} + + int -AUPlugin::_set_block_size (nframes_t nframes) +AUPlugin::set_block_size (pframes_t nframes) { bool was_initialized = initialized; UInt32 numFrames = nframes; OSErr err; if (initialized) { - unit->Uninitialize (); - initialized = false; + deactivate (); } + 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; } @@ -612,13 +893,29 @@ AUPlugin::_set_block_size (nframes_t nframes) activate (); } + _current_block_size = nframes; + return 0; } -int32_t -AUPlugin::configure_io (int32_t in, int32_t out) +bool +AUPlugin::configure_io (ChanCount in, ChanCount out) { AudioStreamBasicDescription streamFormat; + bool was_initialized = initialized; + 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) ) { + return 0; + } else { + deactivate (); + } + } streamFormat.mSampleRate = _session.frame_rate(); streamFormat.mFormatID = kAudioFormatLinearPCM; @@ -639,41 +936,128 @@ AUPlugin::configure_io (int32_t in, int32_t out) streamFormat.mBytesPerPacket = 4; streamFormat.mBytesPerFrame = 4; - streamFormat.mChannelsPerFrame = in; + streamFormat.mChannelsPerFrame = audio_in; if (set_input_format (streamFormat) != 0) { return -1; } - streamFormat.mChannelsPerFrame = out; + streamFormat.mChannelsPerFrame = audio_out; if (set_output_format (streamFormat) != 0) { return -1; } - return Plugin::configure_io (in, out); + /* reset plugin info to show currently configured state */ + + _info->n_inputs = in; + _info->n_outputs = out; + + if (was_initialized) { + activate (); + } + + return 0; } -int32_t -AUPlugin::can_do (int32_t in, int32_t& out) +ChanCount +AUPlugin::input_streams() const { - // 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. + 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); + } - int32_t plugcnt = -1; + 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 +{ + // Note: We never attempt to multiply-instantiate plugins to meet io configurations. + + int32_t audio_in = in.n_audio(); + int32_t audio_out; + bool found = false; AUPluginInfoPtr pinfo = boost::dynamic_pointer_cast(get_info()); - out = -1; + /* lets check MIDI first */ + + if (in.n_midi() > 0) { + if (!_has_midi_input) { + return false; + } + } vector >& io_configs = pinfo->cache.io_configs; + 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. 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)) { + 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; + + 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; } @@ -683,21 +1067,36 @@ AUPlugin::can_do (int32_t in, int32_t& out) */ if (possible_out == -1) { - /* out much match in (UNLIKELY!!) */ - out = in; - plugcnt = 1; + /* any configuration possible, provide stereo output */ + audio_out = 2; + found = true; } else if (possible_out == -2) { - /* any configuration possible, pick matching */ - out = 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 */ - 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 */ - out = possible_out; - plugcnt = 1; + audio_out = possible_out; + found = true; } } @@ -707,20 +1106,20 @@ AUPlugin::can_do (int32_t in, int32_t& out) if (possible_out == -1) { /* out much match in */ - out = in; - plugcnt = 1; + audio_out = audio_in; + found = true; } else if (possible_out == -2) { /* any configuration possible, pick matching */ - out = in; - plugcnt = 1; + audio_out = audio_in; + found = true; } else if (possible_out < -2) { - /* explicit variable number of outputs, pick maximum */ - out = -possible_out; - plugcnt = 1; + /* explicitly variable number of outputs, pick maximum */ + audio_out = -possible_out; + found = true; } else { /* exact number of outputs */ - out = possible_out; - plugcnt = 1; + audio_out = possible_out; + found = true; } } @@ -728,20 +1127,22 @@ AUPlugin::can_do (int32_t in, int32_t& out) if (possible_out == -1) { /* any configuration possible, pick matching */ - out = in; - plugcnt = 1; + audio_out = audio_in; + 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 */ - out = -possible_out; - plugcnt = 1; + /* explicitly variable number of outputs, pick maximum */ + audio_out = -possible_out; + found = true; } else { /* exact number of outputs */ - out = possible_out; - plugcnt = 1; + audio_out = possible_out; + found = true; } } @@ -749,60 +1150,88 @@ AUPlugin::can_do (int32_t in, int32_t& out) /* explicit variable number of inputs */ - if (in > -possible_in) { + if (audio_in > -possible_in) { /* request is too large */ - plugcnt = -1; } + if (possible_out == -1) { - /* out must match in */ - out = 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 */ - 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 */ - out = possible_out; - plugcnt = 1; + audio_out = possible_out; + found = true; } } - if (possible_in == in) { + if (possible_in && (possible_in == audio_in)) { /* exact number of inputs ... must match obviously */ if (possible_out == -1) { - /* out must match in */ - out = 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 */ - out = 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 */ - out = -possible_out; - plugcnt = 1; + /* explicitly variable number of outputs, pick maximum */ + audio_out = -possible_out; + found = true; } else { /* exact number of outputs */ - out = possible_out; - plugcnt = 1; + audio_out = possible_out; + found = true; } } - if (plugcnt == 1) { + if (found) { break; } + } - /* no fit */ - return plugcnt; + 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 true; } int @@ -824,10 +1253,7 @@ AUPlugin::set_output_format (AudioStreamBasicDescription& fmt) } buffers = (AudioBufferList *) malloc (offsetof(AudioBufferList, mBuffers) + - fmt.mChannelsPerFrame * sizeof(AudioBuffer)); - - Glib::Mutex::Lock em (_session.engine().process_lock()); - IO::MoreOutputs (fmt.mChannelsPerFrame); + fmt.mChannelsPerFrame * sizeof(::AudioBuffer)); return 0; } @@ -838,6 +1264,9 @@ AUPlugin::set_stream_format (int scope, uint32_t cnt, AudioStreamBasicDescriptio OSErr result; for (uint32_t i = 0; i < cnt; ++i) { + 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; @@ -846,106 +1275,353 @@ AUPlugin::set_stream_format (int scope, uint32_t cnt, AudioStreamBasicDescriptio } if (scope == kAudioUnitScope_Input) { - input_channels.setAudio( fmt.mChannelsPerFrame ); + input_channels = fmt.mChannelsPerFrame; } else { - output_channels.setAudio( fmt.mChannelsPerFrame ); + output_channels = fmt.mChannelsPerFrame; } return 0; } -ChanCount -AUPlugin::input_streams() const +OSStatus +AUPlugin::render_callback(AudioUnitRenderActionFlags*, + const AudioTimeStamp*, + UInt32, + UInt32 inNumberFrames, + AudioBufferList* ioData) { - if (input_channels < 0) { - warning << string_compose (_("AUPlugin: %1 input_streams() called without any format set!"), name()) << endmsg; - return 1; + /* not much to do with audio - the data is already in the buffers given to us in connect_and_run() */ + + // 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; } - return input_channels; + uint32_t limit = min ((uint32_t) ioData->mNumberBuffers, input_maxbuf); + + for (uint32_t i = 0; i < limit; ++i) { + ioData->mBuffers[i].mNumberChannels = 1; + ioData->mBuffers[i].mDataByteSize = sizeof (Sample) * inNumberFrames; + + /* we don't use the channel mapping because audiounits are + never replicated. one plugin instance uses all channels/buffers + passed to PluginInsert::connect_and_run() + */ + + ioData->mBuffers[i].mData = input_buffers->get_audio (i).data (cb_offset + input_offset); + } + + cb_offset += inNumberFrames; + + return noErr; } +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); -ChanCount -AUPlugin::output_streams() const + AudioUnitRenderActionFlags flags = 0; + AudioTimeStamp ts; + OSErr err; + + if (requires_fixed_size_buffers() && (nframes != _last_nframes)) { + unit->GlobalReset(); + _last_nframes = nframes; + } + + 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 = output_channels; + + 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) { + + input_maxbuf = 0; + frames_processed += nframes; + + 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) { + /* 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)); + } + } + + /* now silence any buffers that were passed in but the that the plugin + did not fill/touch/use. + */ + + for (;i < output_channels; ++i) { + memset (bufs.get_audio (i).data (offset), 0, nframes * sizeof (Sample)); + } + + return 0; + } + + error << string_compose (_("AU: render error for %1, status = %2"), name(), err) << endmsg; + return -1; +} + +OSStatus +AUPlugin::get_beat_and_tempo_callback (Float64* outCurrentBeat, + Float64* outCurrentTempo) { - if (output_channels < 0) { - warning << string_compose (_("AUPlugin: %1 output_streams() called without any format set!"), name()) << endmsg; - return 1; + TempoMap& tmap (_session.tempo_map()); + + 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 + offer the value. + */ + + if (tmap.n_tempos() > 1 || tmap.n_meters() > 1) { + return kAudioUnitErr_CannotDoInCurrentContext; + } + + Timecode::BBT_Time bbt; + 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().divisions_per_bar() * bbt.bars; + beat += bbt.beats; + beat += bbt.ticks / Timecode::BBT_Time::ticks_per_beat; + *outCurrentBeat = beat; + } + + if (outCurrentTempo) { + *outCurrentTempo = floor (metric.tempo().beats_per_minute()); } - return output_channels; + + return noErr; + } OSStatus -AUPlugin::render_callback(AudioUnitRenderActionFlags *ioActionFlags, - const AudioTimeStamp *inTimeStamp, - UInt32 inBusNumber, - UInt32 inNumberFrames, - AudioBufferList* ioData) +AUPlugin::get_musical_time_location_callback (UInt32* outDeltaSampleOffsetToNextBeat, + Float32* outTimeSig_Numerator, + UInt32* outTimeSig_Denominator, + Float64* outCurrentMeasureDownBeat) { - /* not much to do - the data is already in the buffers given to us in connect_and_run() */ + TempoMap& tmap (_session.tempo_map()); - if (current_maxbuf == 0) { - error << _("AUPlugin: render callback called illegally!") << endmsg; + 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 + offer the value. + */ + + if (tmap.n_tempos() > 1 || tmap.n_meters() > 1) { return kAudioUnitErr_CannotDoInCurrentContext; } - for (uint32_t i = 0; i < current_maxbuf; ++i) { - ioData->mBuffers[i].mNumberChannels = 1; - ioData->mBuffers[i].mDataByteSize = sizeof (Sample) * inNumberFrames; - ioData->mBuffers[i].mData = (*current_buffers)[i] + cb_offset + current_offset; + Timecode::BBT_Time bbt; + 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 (((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 + } } - cb_offset += inNumberFrames; + if (outTimeSig_Numerator) { + *outTimeSig_Numerator = (UInt32) lrintf (metric.meter().divisions_per_bar()); + } + if (outTimeSig_Denominator) { + *outTimeSig_Denominator = (UInt32) lrintf (metric.meter().note_divisor()); + } + + if (outCurrentMeasureDownBeat) { + + /* beat for the start of the bar. + 1|1|0 -> 1 + 2|1|0 -> 1 + divisions_per_bar + 3|1|0 -> 1 + (2 * divisions_per_bar) + etc. + */ + + *outCurrentMeasureDownBeat = 1 + metric.meter().divisions_per_bar() * (bbt.bars - 1); + } return noErr; } -int -AUPlugin::connect_and_run (vector& bufs, uint32_t maxbuf, int32_t& in, int32_t& out, nframes_t nframes, nframes_t offset) -{ - AudioUnitRenderActionFlags flags = 0; - AudioTimeStamp ts; +OSStatus +AUPlugin::get_transport_state_callback (Boolean* outIsPlaying, + Boolean* outTransportStateChanged, + Float64* outCurrentSampleInTimeLine, + Boolean* outIsCycling, + Float64* outCycleStartBeat, + Float64* outCycleEndBeat) +{ + bool rolling; + float speed; + + DEBUG_TRACE (DEBUG::AudioUnits, "AU calls ardour transport state callback\n"); + + rolling = _session.transport_rolling(); + speed = _session.transport_speed (); + + if (outIsPlaying) { + *outIsPlaying = _session.transport_rolling(); + } + + if (outTransportStateChanged) { + if (rolling != last_transport_rolling) { + *outTransportStateChanged = true; + } else if (speed != last_transport_speed) { + *outTransportStateChanged = true; + } else { + *outTransportStateChanged = false; + } + } + + if (outCurrentSampleInTimeLine) { + /* this assumes that the AU can only call this host callback from render context, + where input_offset is valid. + */ + *outCurrentSampleInTimeLine = _session.transport_frame() + input_offset; + } + + if (outIsCycling) { + Location* loc = _session.locations()->auto_loop_location(); + + *outIsCycling = (loc && _session.transport_rolling() && _session.get_play_loop()); + + if (*outIsCycling) { + + if (outCycleStartBeat || outCycleEndBeat) { + + TempoMap& tmap (_session.tempo_map()); + + /* 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; + } - current_buffers = &bufs; - current_maxbuf = maxbuf; - current_offset = offset; - cb_offset = 0; + Timecode::BBT_Time bbt; - buffers->mNumberBuffers = maxbuf; + if (outCycleStartBeat) { + TempoMetric metric = tmap.metric_at (loc->start() + input_offset); + _session.tempo_map().bbt_time (loc->start(), bbt); - for (uint32_t i = 0; i < maxbuf; ++i) { - buffers->mBuffers[i].mNumberChannels = 1; - buffers->mBuffers[i].mDataByteSize = nframes * sizeof (Sample); - buffers->mBuffers[i].mData = 0; - } + float beat; + beat = metric.meter().divisions_per_bar() * bbt.bars; + beat += bbt.beats; + beat += bbt.ticks / Timecode::BBT_Time::ticks_per_beat; - ts.mSampleTime = frames_processed; - ts.mFlags = kAudioTimeStampSampleTimeValid; + *outCycleStartBeat = beat; + } - if (unit->Render (&flags, &ts, 0, nframes, buffers) == noErr) { + if (outCycleEndBeat) { + TempoMetric metric = tmap.metric_at (loc->end() + input_offset); + _session.tempo_map().bbt_time (loc->end(), bbt); - current_maxbuf = 0; - frames_processed += nframes; + float beat; + beat = metric.meter().divisions_per_bar() * bbt.bars; + beat += bbt.beats; + beat += bbt.ticks / Timecode::BBT_Time::ticks_per_beat; - for (uint32_t i = 0; i < maxbuf; ++i) { - if (bufs[i] + offset != buffers->mBuffers[i].mData) { - memcpy (bufs[i]+offset, buffers->mBuffers[i].mData, nframes * sizeof (Sample)); + *outCycleEndBeat = beat; + } } } - return 0; } - return -1; + last_transport_rolling = rolling; + last_transport_speed = speed; + + return noErr; } -set +set AUPlugin::automatable() const { - set automates; + set automates; for (uint32_t i = 0; i < descriptors.size(); ++i) { if (descriptors[i].automatable) { - automates.insert (i); + automates.insert (automates.end(), Evoral::Parameter (PluginAutomation, 0, i)); } } @@ -953,13 +1629,17 @@ AUPlugin::automatable() const } string -AUPlugin::describe_parameter (uint32_t param) +AUPlugin::describe_parameter (Evoral::Parameter param) { - return descriptors[param].label; + if (param.type() == PluginAutomation && param.id() < parameter_count()) { + return descriptors[param.id()].label; + } else { + return "??"; + } } void -AUPlugin::print_parameter (uint32_t param, char* buf, uint32_t len) const +AUPlugin::print_parameter (uint32_t /*param*/, char* /*buf*/, uint32_t /*len*/) const { // NameValue stuff here } @@ -988,18 +1668,16 @@ 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; + DEBUG_TRACE (DEBUG::AudioUnits, "get preset state\n"); if (unit->GetAUPreset (propertyList) != noErr) { - return *root; + return; } // Convert the property list into XML data. @@ -1008,7 +1686,7 @@ AUPlugin::get_state() 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 @@ -1025,21 +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) +AUPlugin::set_state(const XMLNode& node, int version) { -#ifdef AU_STATE_SUPPORT int ret = -1; CFPropertyListRef propertyList; LocaleGuard lg (X_("POSIX")); @@ -1071,60 +1739,89 @@ AUPlugin::set_state(const XMLNode& node) CFRelease (xmlData); if (propertyList) { + 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); } + Plugin::set_state (node, version); 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 } 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; - string path; - PresetMap::iterator x = preset_map.find (preset_label); + Glib::ustring path; + UserPresetMap::iterator ux; + FactoryPresetMap::iterator fx; - if (x == preset_map.end()) { - return false; - } + /* look first in "user" presets */ - if ((propertyList = load_property_list (x->second)) != 0) { - if (unit->SetAUPreset (propertyList) == noErr) { + if ((ux = user_preset_map.find (r.label)) != user_preset_map.end()) { + + if ((propertyList = load_property_list (ux->second)) != 0) { + 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; + AUParameterListenerNotify (NULL, NULL, &changedUnit); + } + CFRelease(propertyList); + } + + } 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); + + DEBUG_TRACE (DEBUG::AudioUnits, "set preset from factory presets\n"); + + if (unit->SetPresentPreset (preset) == 0) { ret = true; + + /* tell the world */ + + AudioUnitParameter changedUnit; + changedUnit.mAudioUnit = unit->AU(); + changedUnit.mParameterID = kAUParameterListener_AnyParameter; + AUParameterListenerNotify (NULL, NULL, &changedUnit); } - CFRelease(propertyList); } 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; - string user_preset_path; + vector v; + Glib::ustring user_preset_path; bool ret = true; std::string m = maker(); @@ -1147,6 +1844,7 @@ AUPlugin::save_preset (string preset_name) return false; } + DEBUG_TRACE (DEBUG::AudioUnits, "get current preset\n"); if (unit->GetAUPreset (propertyList) != noErr) { return false; } @@ -1168,15 +1866,7 @@ AUPlugin::save_preset (string preset_name) 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; } //----------------------------------------------------------------------------- @@ -1212,43 +1902,43 @@ GetDictionarySInt32Value(CFDictionaryRef inAUStateDictionary, CFStringRef inDict static OSStatus GetAUComponentDescriptionFromStateData(CFPropertyListRef inAUStateData, ComponentDescription * outComponentDescription) { - CFDictionaryRef auStateDictionary; - ComponentDescription tempDesc = {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; + 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; + // 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; } @@ -1293,8 +1983,8 @@ static bool au_preset_filter (const string& str, void* arg) 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; @@ -1343,28 +2033,29 @@ AUPlugin::current_preset() const { string preset_name; -#ifdef AU_STATE_SUPPORT CFPropertyListRef propertyList; + 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* preset_files; - vector presets; 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) { @@ -1383,8 +2074,7 @@ AUPlugin::get_presets () */ if (check_and_get_preset_name (get_comp()->Comp(), path, preset_name)) { - presets.push_back (preset_name); - preset_map[preset_name] = path; + user_preset_map[preset_name] = path; } delete *x; @@ -1392,7 +2082,19 @@ AUPlugin::get_presets () delete preset_files; - return presets; + /* now fill the vector with the names we have */ + + for (UserPresetMap::iterator i = user_preset_map.begin(); i != user_preset_map.end(); ++i) { + _presets.insert (make_pair (i->second, Plugin::PresetRecord (i->second, i->first))); + } + + /* add factory presets */ + + for (FactoryPresetMap::iterator i = factory_preset_map.begin(); i != factory_preset_map.end(); ++i) { + /* XXX: dubious */ + string const uri = string_compose ("%1", _presets.size ()); + _presets.insert (make_pair (uri, Plugin::PresetRecord (uri, i->first, i->second))); + } } bool @@ -1406,11 +2108,12 @@ AUPlugin::has_editor () const AUPluginInfo::AUPluginInfo (boost::shared_ptr d) : descriptor (d) { - + type = ARDOUR::AudioUnit; } AUPluginInfo::~AUPluginInfo () { + type = ARDOUR::AudioUnit; } PluginPtr @@ -1419,6 +2122,7 @@ AUPluginInfo::load (Session& session) try { PluginPtr plugin; + DEBUG_TRACE (DEBUG::AudioUnits, "load AU as a component\n"); boost::shared_ptr comp (new CAComponent(*descriptor)); if (!comp->IsValid()) { @@ -1427,19 +2131,23 @@ AUPluginInfo::load (Session& session) plugin.reset (new AUPlugin (session.engine(), session, comp)); } - plugin->set_info (PluginInfoPtr (new AUPluginInfo (*this))); + 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 (); } } -string +Glib::ustring AUPluginInfo::au_cache_path () { - return Glib::build_filename (ARDOUR::get_user_ardour_path(), "au_cache"); + return Glib::build_filename (ARDOUR::user_config_directory(), "au_cache"); } PluginInfoList* @@ -1451,11 +2159,14 @@ AUPluginInfo::discover () ARDOUR::BootMessage (_("Discovering AudioUnit plugins (could take some time ...)")); } - PluginInfoList* plugs = new PluginInfoList (); + PluginInfoList* plugs = new PluginInfoList; - discover_fx (plugs); - discover_music (plugs); - discover_generators (plugs); + 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; } @@ -1499,6 +2210,19 @@ AUPluginInfo::discover_generators (PluginInfoList& plugs) discover_by_description (plugs, desc); } +void +AUPluginInfo::discover_instruments (PluginInfoList& plugs) +{ + CAComponentDescription desc; + desc.componentFlags = 0; + desc.componentFlagsMask = 0; + desc.componentSubType = 0; + desc.componentManufacturer = 0; + desc.componentType = kAudioUnitType_MusicDevice; + + discover_by_description (plugs, desc); +} + void AUPluginInfo::discover_by_description (PluginInfoList& plugs, CAComponentDescription& desc) { @@ -1513,7 +2237,13 @@ AUPluginInfo::discover_by_description (PluginInfoList& plugs, CAComponentDescrip AUPluginInfoPtr info (new AUPluginInfo (boost::shared_ptr (new CAComponentDescription(temp)))); - /* no panners, format converters or i/o AU's for our purposes + /* although apple designed the subtype field to be a "category" indicator, + its really turned into a plugin ID field for a given manufacturer. Hence + 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 */ switch (info->descriptor->Type()) { @@ -1521,119 +2251,30 @@ AUPluginInfo::discover_by_description (PluginInfoList& plugs, CAComponentDescrip case kAudioUnitType_OfflineEffect: case kAudioUnitType_FormatConverter: continue; + case kAudioUnitType_Output: + info->category = _("AudioUnit Outputs"); + break; case kAudioUnitType_MusicDevice: + info->category = _("AudioUnit Instruments"); + break; case kAudioUnitType_MusicEffect: + info->category = _("AudioUnit MusicEffects"); + break; case kAudioUnitType_Effect: + info->category = _("AudioUnit Effects"); + break; case kAudioUnitType_Mixer: + info->category = _("AudioUnit Mixers"); + break; case kAudioUnitType_Generator: + info->category = _("AudioUnit Generators"); break; default: + info->category = _("AudioUnit (Unknown)"); break; } - switch (info->descriptor->SubType()) { - case kAudioUnitSubType_DefaultOutput: - case kAudioUnitSubType_SystemOutput: - case kAudioUnitSubType_GenericOutput: - case kAudioUnitSubType_AUConverter: - /* we don't want output units here */ - continue; - break; - - case kAudioUnitSubType_DLSSynth: - info->category = "DLS Synth"; - break; - - case kAudioUnitSubType_Varispeed: - info->category = "Varispeed"; - break; - - case kAudioUnitSubType_Delay: - info->category = "Delay"; - break; - - case kAudioUnitSubType_LowPassFilter: - info->category = "Low-pass Filter"; - break; - - case kAudioUnitSubType_HighPassFilter: - info->category = "High-pass Filter"; - break; - - case kAudioUnitSubType_BandPassFilter: - info->category = "Band-pass Filter"; - break; - - case kAudioUnitSubType_HighShelfFilter: - info->category = "High-shelf Filter"; - break; - - case kAudioUnitSubType_LowShelfFilter: - info->category = "Low-shelf Filter"; - break; - - case kAudioUnitSubType_ParametricEQ: - info->category = "Parametric EQ"; - break; - - case kAudioUnitSubType_GraphicEQ: - info->category = "Graphic EQ"; - break; - - case kAudioUnitSubType_PeakLimiter: - info->category = "Peak Limiter"; - break; - - case kAudioUnitSubType_DynamicsProcessor: - info->category = "Dynamics Processor"; - break; - - case kAudioUnitSubType_MultiBandCompressor: - info->category = "Multiband Compressor"; - break; - - case kAudioUnitSubType_MatrixReverb: - info->category = "Matrix Reverb"; - break; - - case kAudioUnitSubType_SampleDelay: - info->category = "Sample Delay"; - break; - - case kAudioUnitSubType_Pitch: - info->category = "Pitch"; - break; - - case kAudioUnitSubType_NetSend: - info->category = "Net Sender"; - break; - - case kAudioUnitSubType_3DMixer: - info->category = "3DMixer"; - break; - - case kAudioUnitSubType_MatrixMixer: - info->category = "MatrixMixer"; - break; - - case kAudioUnitSubType_ScheduledSoundPlayer: - info->category = "Scheduled Sound Player"; - break; - - - case kAudioUnitSubType_AudioFilePlayer: - info->category = "Audio File Player"; - break; - - case kAudioUnitSubType_NetReceive: - info->category = "Net Receiver"; - break; - - default: - info->category = ""; - } - AUPluginInfo::get_names (temp, info->name, info->creator); info->type = ARDOUR::AudioUnit; @@ -1654,15 +2295,33 @@ AUPluginInfo::discover_by_description (PluginInfoList& plugs, CAComponentDescrip 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 = info->cache.io_configs.front().first; - info->n_outputs = 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); + } - if (info->cache.io_configs.size() > 1) { - cerr << "ODD: variable IO config for " << 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 { @@ -1688,7 +2347,7 @@ AUPluginInfo::cached_io_configuration (const std::string& unique_id, follow Apple "guidelines". */ - snprintf (buf, sizeof (buf), "%u", version); + snprintf (buf, sizeof (buf), "%u", (uint32_t) version); id = unique_id; id += '/'; id += buf; @@ -1716,17 +2375,20 @@ 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; } + 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)); @@ -1754,12 +2416,15 @@ AUPluginInfo::add_cached_info (const std::string& id, AUPluginCachedInfo& cinfo) cached_info[id] = cinfo; } +#define AU_CACHE_VERSION "2.0" + void AUPluginInfo::save_cached_info () { XMLNode* node; 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")); @@ -1780,34 +2445,45 @@ AUPluginInfo::save_cached_info () } - string path = au_cache_path (); + Glib::ustring path = au_cache_path (); XMLTree tree; tree.set_root (node); 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()); } } int AUPluginInfo::load_cached_info () { - string path = au_cache_path (); + Glib::ustring path = au_cache_path (); XMLTree tree; if (!Glib::file_test (path, Glib::FILE_TEST_EXISTS)) { return 0; } - tree.read (path); + if ( !tree.read (path) ) { + 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(); @@ -1826,7 +2502,28 @@ AUPluginInfo::load_cached_info () continue; } - std::string id = prop->value(); + string id = prop->value(); + string fixed; + string version; + + string::size_type slash = id.find_last_of ('/'); + + if (slash == string::npos) { + continue; + } + + version = id.substr (slash); + id = id.substr (0, slash); + fixed = AUPlugin::maybe_fix_broken_au_id (id); + + 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; + AUPluginCachedInfo cinfo; for (XMLNodeConstIterator giter = gchildren.begin(); giter != gchildren.end(); giter++) { @@ -1835,13 +2532,15 @@ AUPluginInfo::load_cached_info () if (gchild->name() == X_("io")) { + int in; + int out; const XMLProperty* iprop; const XMLProperty* oprop; if (((iprop = gchild->property (X_("in"))) != 0) && ((oprop = gchild->property (X_("out"))) != 0)) { - const int in = atoi (iprop->value()); - const int out = atoi (iprop->value()); + in = atoi (iprop->value()); + out = atoi (oprop->value()); cinfo.io_configs.push_back (pair (in, out)); } @@ -1858,7 +2557,7 @@ AUPluginInfo::load_cached_info () } void -AUPluginInfo::get_names (CAComponentDescription& comp_desc, std::string& name, string& maker) +AUPluginInfo::get_names (CAComponentDescription& comp_desc, std::string& name, std::string& maker) { CFStringRef itemName = NULL; @@ -1902,30 +2601,203 @@ AUPluginInfo::get_names (CAComponentDescription& comp_desc, std::string& name, s if (colon) { name = str.substr (colon+1); maker = str.substr (0, colon); - // strip_whitespace_edges (maker); - // strip_whitespace_edges (name); + strip_whitespace_edges (maker); + strip_whitespace_edges (name); } else { name = str; maker = "unknown"; + strip_whitespace_edges (name); } } -// from CAComponentDescription.cpp (in libs/appleutility in ardour source) -extern char *StringForOSType (OSType t, char *writeLocation); - std::string AUPluginInfo::stringify_descriptor (const CAComponentDescription& desc) { - char str[24]; stringstream s; - s << StringForOSType (desc.Type(), str); - s << " - "; - - s << StringForOSType (desc.SubType(), str); - s << " - "; + /* note: OSType is a compiler-implemenation-defined value, + historically a 32 bit integer created with a multi-character + constant such as 'abcd'. It is, fundamentally, an abomination. + */ - s << StringForOSType (desc.Manu(), str); + s << desc.Type(); + s << '-'; + s << desc.SubType(); + s << '-'; + s << desc.Manu(); return s.str(); } + +bool +AUPluginInfo::needs_midi_input () +{ + return is_effect_with_midi_input () || is_instrument (); +} + +bool +AUPluginInfo::is_effect () const +{ + return is_effect_without_midi_input() || is_effect_with_midi_input(); +} + +bool +AUPluginInfo::is_effect_without_midi_input () const +{ + return descriptor->IsAUFX(); +} + +bool +AUPluginInfo::is_effect_with_midi_input () const +{ + return descriptor->IsAUFM(); +} + +bool +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; + } +}