X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Faudio_unit.cc;h=b0ced9bdfbe2b57eeac0f4db3df6adb12d60c6cc;hb=07be98b3410ac70b3c4451592fb88def678611ef;hp=5d7e7ae90c9bd156004f41caf302f453f46c5908;hpb=0565c75ce8344ecd2e4b42edeabc9cace5f3c091;p=ardour.git diff --git a/libs/ardour/audio_unit.cc b/libs/ardour/audio_unit.cc index 5d7e7ae90c..b0ced9bdfb 100644 --- a/libs/ardour/audio_unit.cc +++ b/libs/ardour/audio_unit.cc @@ -1,7 +1,6 @@ /* - Copyright (C) 2006 Paul Davis - Written by Taybin Rutkin - + Copyright (C) 2006 Paul Davis + 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 the Free Software Foundation; either version 2 of the License, or @@ -17,3 +16,1920 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#include +#include +#include + +#include "pbd/transmitter.h" +#include "pbd/xml++.h" +#include "pbd/whitespace.h" +#include "pbd/pathscanner.h" + +#include +#include +#include + +#include "ardour/ardour.h" +#include "ardour/audioengine.h" +#include "ardour/io.h" +#include "ardour/audio_unit.h" +#include "ardour/session.h" +#include "ardour/utils.h" + +#include +#include + +#include +#include + +#include "i18n.h" + +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"; +static string preset_suffix = ".aupreset"; +static bool preset_search_path_initialized = false; + +static OSStatus +_render_callback(void *userData, + AudioUnitRenderActionFlags *ioActionFlags, + const AudioTimeStamp *inTimeStamp, + UInt32 inBusNumber, + UInt32 inNumberFrames, + AudioBufferList* ioData) +{ + return ((AUPlugin*)userData)->render_callback (ioActionFlags, inTimeStamp, inBusNumber, inNumberFrames, ioData); +} + +static int +save_property_list (CFPropertyListRef propertyList, Glib::ustring path) + +{ + CFDataRef xmlData; + int fd; + + // Convert the property list into XML data. + + xmlData = CFPropertyListCreateXMLData( kCFAllocatorDefault, propertyList); + + if (!xmlData) { + error << _("Could not create XML version of property list") << endmsg; + return -1; + } + + // Write the XML data to the file. + + 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 (_("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) { + CFRelease (xmlData); + close (fd); + return -1; + } + + close (fd); + return 0; +} + + +static CFPropertyListRef +load_property_list (Glib::ustring path) +{ + int fd; + CFPropertyListRef propertyList; + CFDataRef xmlData; + 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); + + if (read (fd, buf, len) != len) { + delete [] buf; + 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, + &errorString); + + CFRelease (xmlData); + delete [] buf; + + return propertyList; +} + +//----------------------------------------------------------------------------- +static void +set_preset_name_in_plist (CFPropertyListRef plist, string preset_name) +{ + if (!plist) { + return; + } + CFStringRef pn = CFStringCreateWithCString (kCFAllocatorDefault, preset_name.c_str(), kCFStringEncodingUTF8); + + if (CFGetTypeID (plist) == CFDictionaryGetTypeID()) { + CFDictionarySetValue ((CFMutableDictionaryRef)plist, CFSTR(kAUPresetNameKey), pn); + } + + CFRelease (pn); +} + +//----------------------------------------------------------------------------- +static std::string +get_preset_name_in_plist (CFPropertyListRef plist) +{ + std::string ret; + + if (!plist) { + return ret; + } + + if (CFGetTypeID (plist) == CFDictionaryGetTypeID()) { + const void *p = CFDictionaryGetValue ((CFMutableDictionaryRef)plist, CFSTR(kAUPresetNameKey)); + if (p) { + CFStringRef str = (CFStringRef) p; + int len = CFStringGetLength(str); + len = (len * 2) + 1; + char local_buffer[len]; + if (CFStringGetCString (str, local_buffer, len, kCFStringEncodingUTF8)) { + ret = local_buffer; + } + } + } + return ret; +} + +//-------------------------------------------------------------------------- +// general implementation for ComponentDescriptionsMatch() and ComponentDescriptionsMatch_Loosely() +// if inIgnoreType is true, then the type code is ignored in the ComponentDescriptions +Boolean ComponentDescriptionsMatch_General(const ComponentDescription * inComponentDescription1, const ComponentDescription * inComponentDescription2, Boolean inIgnoreType); +Boolean ComponentDescriptionsMatch_General(const ComponentDescription * inComponentDescription1, const ComponentDescription * inComponentDescription2, Boolean inIgnoreType) +{ + if ( (inComponentDescription1 == NULL) || (inComponentDescription2 == NULL) ) + return FALSE; + + if ( (inComponentDescription1->componentSubType == inComponentDescription2->componentSubType) + && (inComponentDescription1->componentManufacturer == inComponentDescription2->componentManufacturer) ) + { + // only sub-type and manufacturer IDs need to be equal + if (inIgnoreType) + return TRUE; + // type, sub-type, and manufacturer IDs all need to be equal in order to call this a match + else if (inComponentDescription1->componentType == inComponentDescription2->componentType) + return TRUE; + } + + return FALSE; +} + +//-------------------------------------------------------------------------- +// general implementation for ComponentAndDescriptionMatch() and ComponentAndDescriptionMatch_Loosely() +// if inIgnoreType is true, then the type code is ignored in the ComponentDescriptions +Boolean ComponentAndDescriptionMatch_General(Component inComponent, const ComponentDescription * inComponentDescription, Boolean inIgnoreType); +Boolean ComponentAndDescriptionMatch_General(Component inComponent, const ComponentDescription * inComponentDescription, Boolean inIgnoreType) +{ + OSErr status; + ComponentDescription desc; + + if ( (inComponent == NULL) || (inComponentDescription == NULL) ) + return FALSE; + + // get the ComponentDescription of the input Component + status = GetComponentInfo(inComponent, &desc, NULL, NULL, NULL); + if (status != noErr) + return FALSE; + + // check if the Component's ComponentDescription matches the input ComponentDescription + return ComponentDescriptionsMatch_General(&desc, inComponentDescription, inIgnoreType); +} + +//-------------------------------------------------------------------------- +// determine if 2 ComponentDescriptions are basically equal +// (by that, I mean that the important identifying values are compared, +// but not the ComponentDescription flags) +Boolean ComponentDescriptionsMatch(const ComponentDescription * inComponentDescription1, const ComponentDescription * inComponentDescription2) +{ + return ComponentDescriptionsMatch_General(inComponentDescription1, inComponentDescription2, FALSE); +} + +//-------------------------------------------------------------------------- +// determine if 2 ComponentDescriptions have matching sub-type and manufacturer codes +Boolean ComponentDescriptionsMatch_Loose(const ComponentDescription * inComponentDescription1, const ComponentDescription * inComponentDescription2) +{ + return ComponentDescriptionsMatch_General(inComponentDescription1, inComponentDescription2, TRUE); +} + +//-------------------------------------------------------------------------- +// determine if a ComponentDescription basically matches that of a particular Component +Boolean ComponentAndDescriptionMatch(Component inComponent, const ComponentDescription * inComponentDescription) +{ + return ComponentAndDescriptionMatch_General(inComponent, inComponentDescription, FALSE); +} + +//-------------------------------------------------------------------------- +// determine if a ComponentDescription matches only the sub-type and manufacturer codes of a particular Component +Boolean ComponentAndDescriptionMatch_Loosely(Component inComponent, const ComponentDescription * inComponentDescription) +{ + return ComponentAndDescriptionMatch_General(inComponent, inComponentDescription, TRUE); +} + + +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) +{ + if (!preset_search_path_initialized) { + Glib::ustring p = Glib::get_home_dir(); + p += "/Library/Audio/Presets:"; + p += preset_search_path; + preset_search_path = p; + preset_search_path_initialized = true; + } + + init (); +} + +AUPlugin::AUPlugin (const AUPlugin& other) + : Plugin (other) + , comp (other.get_comp()) + , unit (new CAAudioUnit) + , initialized (false) + , buffers (0) + , current_maxbuf (0) + , current_offset (0) + , current_buffers (0) + , frames_processed (0) + +{ + init (); +} + +AUPlugin::~AUPlugin () +{ + if (unit) { + unit->Uninitialize (); + } + + if (buffers) { + free (buffers); + } +} + + +void +AUPlugin::init () +{ + OSErr err; + + try { + err = CAAudioUnit::Open (*(comp.get()), *unit); + } catch (...) { + error << _("Exception thrown during AudioUnit plugin loading - plugin ignored") << endmsg; + throw failed_constructor(); + } + + if (err != noErr) { + error << _("AudioUnit: Could not convert CAComponent to CAAudioUnit") << endmsg; + 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(); + } + + unit->GetElementCount (kAudioUnitScope_Global, global_elements); + unit->GetElementCount (kAudioUnitScope_Input, input_elements); + unit->GetElementCount (kAudioUnitScope_Output, output_elements); + + /* 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(); + } + + discover_parameters (); + + Plugin::setup_controls (); +} + +void +AUPlugin::discover_parameters () +{ + /* discover writable parameters */ + + AudioUnitScope scopes[] = { + kAudioUnitScope_Global, + kAudioUnitScope_Output, + kAudioUnitScope_Input + }; + + descriptors.clear (); + + 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; + + d.id = param_info.ParamID (i); + + const CAAUParameter* param = param_info.GetParamInfo (d.id); + const AudioUnitParameterInfo& info (param->ParamInfo()); + + const int len = CFStringGetLength (param->GetName());; + char local_buffer[len*2]; + Boolean good = CFStringGetCString(param->GetName(),local_buffer,len*2,kCFStringEncodingMacRoman); + if (!good) { + d.label = "???"; + } else { + d.label = local_buffer; + } + + d.scope = param_info.GetScope (); + d.element = param_info.GetElement (); + + /* info.units to consider */ + /* + kAudioUnitParameterUnit_Generic = 0 + kAudioUnitParameterUnit_Indexed = 1 + kAudioUnitParameterUnit_Boolean = 2 + kAudioUnitParameterUnit_Percent = 3 + kAudioUnitParameterUnit_Seconds = 4 + kAudioUnitParameterUnit_SampleFrames = 5 + kAudioUnitParameterUnit_Phase = 6 + kAudioUnitParameterUnit_Rate = 7 + kAudioUnitParameterUnit_Hertz = 8 + kAudioUnitParameterUnit_Cents = 9 + kAudioUnitParameterUnit_RelativeSemiTones = 10 + kAudioUnitParameterUnit_MIDINoteNumber = 11 + kAudioUnitParameterUnit_MIDIController = 12 + kAudioUnitParameterUnit_Decibels = 13 + kAudioUnitParameterUnit_LinearGain = 14 + kAudioUnitParameterUnit_Degrees = 15 + kAudioUnitParameterUnit_EqualPowerCrossfade = 16 + kAudioUnitParameterUnit_MixerFaderCurve1 = 17 + kAudioUnitParameterUnit_Pan = 18 + kAudioUnitParameterUnit_Meters = 19 + kAudioUnitParameterUnit_AbsoluteCents = 20 + kAudioUnitParameterUnit_Octaves = 21 + kAudioUnitParameterUnit_BPM = 22 + kAudioUnitParameterUnit_Beats = 23 + kAudioUnitParameterUnit_Milliseconds = 24 + kAudioUnitParameterUnit_Ratio = 25 + */ + + /* info.flags to consider */ + + /* + + kAudioUnitParameterFlag_CFNameRelease = (1L << 4) + kAudioUnitParameterFlag_HasClump = (1L << 20) + kAudioUnitParameterFlag_HasName = (1L << 21) + kAudioUnitParameterFlag_DisplayLogarithmic = (1L << 22) + kAudioUnitParameterFlag_IsHighResolution = (1L << 23) + kAudioUnitParameterFlag_NonRealTime = (1L << 24) + kAudioUnitParameterFlag_CanRamp = (1L << 25) + kAudioUnitParameterFlag_ExpertMode = (1L << 26) + kAudioUnitParameterFlag_HasCFNameString = (1L << 27) + kAudioUnitParameterFlag_IsGlobalMeta = (1L << 28) + kAudioUnitParameterFlag_IsElementMeta = (1L << 29) + kAudioUnitParameterFlag_IsReadable = (1L << 30) + kAudioUnitParameterFlag_IsWritable = (1L << 31) + */ + + d.lower = info.minValue; + 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 && ((d.upper - d.lower) == 1.0)); + d.sr_dependent = (info.unit & kAudioUnitParameterUnit_SampleFrames); + d.automatable = !d.toggled && + !(info.flags & kAudioUnitParameterFlag_NonRealTime) && + (info.flags & kAudioUnitParameterFlag_IsWritable); + + d.logarithmic = (info.flags & kAudioUnitParameterFlag_DisplayLogarithmic); + d.unit = info.unit; + + d.step = 1.0; + d.smallstep = 0.1; + d.largestep = 10.0; + d.min_unbound = 0; // lower is bound + d.max_unbound = 0; // upper is bound + + descriptors.push_back (d); + } + } +} + + +string +AUPlugin::unique_id () const +{ + return AUPluginInfo::stringify_descriptor (comp->Desc()); +} + +const char * +AUPlugin::label () const +{ + return _info->name.c_str(); +} + +uint32_t +AUPlugin::parameter_count () const +{ + return descriptors.size(); +} + +float +AUPlugin::default_value (uint32_t port) +{ + if (port < descriptors.size()) { + return descriptors[port].default_value; + } + + return 0; +} + +nframes_t +AUPlugin::latency () const +{ + return unit->Latency() * _session.frame_rate(); +} + +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); + } +} + +float +AUPlugin::get_parameter (uint32_t which) const +{ + float val = 0.0; + if (which < descriptors.size()) { + const AUParameterDescriptor& d (descriptors[which]); + unit->GetParameter(d.id, d.scope, d.element, val); + } + return val; +} + +int +AUPlugin::get_parameter_descriptor (uint32_t which, ParameterDescriptor& pd) const +{ + if (which < descriptors.size()) { + pd = descriptors[which]; + return 0; + } + return -1; +} + +uint32_t +AUPlugin::nth_parameter (uint32_t which, bool& ok) const +{ + if (which < descriptors.size()) { + ok = true; + return which; + } + ok = false; + return 0; +} + +void +AUPlugin::activate () +{ + if (!initialized) { + OSErr err; + if ((err = unit->Initialize()) != noErr) { + error << string_compose (_("AUPlugin: %1 cannot initialize plugin (err = %2)"), name(), err) << endmsg; + } else { + frames_processed = 0; + initialized = true; + } + } +} + +void +AUPlugin::deactivate () +{ + unit->GlobalReset (); +} + +void +AUPlugin::set_block_size (nframes_t nframes) +{ + _set_block_size (nframes); +} + +int +AUPlugin::_set_block_size (nframes_t nframes) +{ + bool was_initialized = initialized; + UInt32 numFrames = nframes; + OSErr err; + + if (initialized) { + unit->Uninitialize (); + initialized = false; + } + + if ((err = unit->SetProperty (kAudioUnitProperty_MaximumFramesPerSlice, kAudioUnitScope_Global, + 0, &numFrames, sizeof (numFrames))) != noErr) { + cerr << "cannot set max frames (err = " << err << ')' << endl; + return -1; + } + + if (was_initialized) { + activate (); + } + + return 0; +} + +int32_t +AUPlugin::configure_io (int32_t in, int32_t out) +{ + AudioStreamBasicDescription streamFormat; + + streamFormat.mSampleRate = _session.frame_rate(); + streamFormat.mFormatID = kAudioFormatLinearPCM; + streamFormat.mFormatFlags = kAudioFormatFlagIsFloat|kAudioFormatFlagIsPacked|kAudioFormatFlagIsNonInterleaved; + +#ifdef __LITTLE_ENDIAN__ + /* relax */ +#else + streamFormat.mFormatFlags |= kAudioFormatFlagIsBigEndian; +#endif + + streamFormat.mBitsPerChannel = 32; + streamFormat.mFramesPerPacket = 1; + + /* apple says that for non-interleaved data, these + values always refer to a single channel. + */ + streamFormat.mBytesPerPacket = 4; + streamFormat.mBytesPerFrame = 4; + + streamFormat.mChannelsPerFrame = in; + + if (set_input_format (streamFormat) != 0) { + return -1; + } + + streamFormat.mChannelsPerFrame = out; + + if (set_output_format (streamFormat) != 0) { + return -1; + } + + return Plugin::configure_io (in, out); +} + +int32_t +AUPlugin::can_do (int32_t in, int32_t& 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. + + int32_t plugcnt = -1; + AUPluginInfoPtr pinfo = boost::dynamic_pointer_cast(get_info()); + + out = -1; + + vector >& io_configs = pinfo->cache.io_configs; + + 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_out == 0) { + warning << string_compose (_("AU %1 has zero outputs - configuration ignored"), name()) << endmsg; + continue; + } + + if (possible_in == 0) { + + /* instrument plugin, always legal but throws away inputs ... + */ + + if (possible_out == -1) { + /* out much match in (UNLIKELY!!) */ + out = in; + plugcnt = 1; + } else if (possible_out == -2) { + /* any configuration possible, pick matching */ + out = in; + plugcnt = 1; + } else if (possible_out < -2) { + /* explicit variable number of outputs, pick maximum */ + out = -possible_out; + plugcnt = 1; + } else { + /* exact number of outputs */ + out = possible_out; + plugcnt = 1; + } + } + + if (possible_in == -1) { + + /* wildcard for input */ + + if (possible_out == -1) { + /* out much match in */ + out = in; + plugcnt = 1; + } else if (possible_out == -2) { + /* any configuration possible, pick matching */ + out = in; + plugcnt = 1; + } else if (possible_out < -2) { + /* explicit variable number of outputs, pick maximum */ + out = -possible_out; + plugcnt = 1; + } else { + /* exact number of outputs */ + out = possible_out; + plugcnt = 1; + } + } + + if (possible_in == -2) { + + if (possible_out == -1) { + /* any configuration possible, pick matching */ + out = in; + plugcnt = 1; + } else if (possible_out == -2) { + error << string_compose (_("AU plugin %1 has illegal IO configuration (-2,-2)"), name()) + << endmsg; + plugcnt = -1; + } else if (possible_out < -2) { + /* explicit variable number of outputs, pick maximum */ + out = -possible_out; + plugcnt = 1; + } else { + /* exact number of outputs */ + out = possible_out; + plugcnt = 1; + } + } + + if (possible_in < -2) { + + /* explicit variable number of inputs */ + + if (in > -possible_in) { + /* request is too large */ + plugcnt = -1; + } + + if (possible_out == -1) { + /* out must match in */ + out = in; + plugcnt = 1; + } else if (possible_out == -2) { + error << string_compose (_("AU plugin %1 has illegal IO configuration (-2,-2)"), name()) + << endmsg; + plugcnt = -1; + } else if (possible_out < -2) { + /* explicit variable number of outputs, pick maximum */ + out = -possible_out; + plugcnt = 1; + } else { + /* exact number of outputs */ + out = possible_out; + plugcnt = 1; + } + } + + if (possible_in == in) { + + /* exact number of inputs ... must match obviously */ + + if (possible_out == -1) { + /* out must match in */ + out = in; + plugcnt = 1; + } else if (possible_out == -2) { + /* any output configuration, pick matching */ + out = in; + plugcnt = -1; + } else if (possible_out < -2) { + /* explicit variable number of outputs, pick maximum */ + out = -possible_out; + plugcnt = 1; + } else { + /* exact number of outputs */ + out = possible_out; + plugcnt = 1; + } + } + + if (plugcnt == 1) { + break; + } + } + + /* no fit */ + return plugcnt; +} + +int +AUPlugin::set_input_format (AudioStreamBasicDescription& fmt) +{ + return set_stream_format (kAudioUnitScope_Input, input_elements, fmt); +} + +int +AUPlugin::set_output_format (AudioStreamBasicDescription& fmt) +{ + if (set_stream_format (kAudioUnitScope_Output, output_elements, fmt) != 0) { + return -1; + } + + if (buffers) { + free (buffers); + buffers = 0; + } + + buffers = (AudioBufferList *) malloc (offsetof(AudioBufferList, mBuffers) + + fmt.mChannelsPerFrame * sizeof(AudioBuffer)); + + Glib::Mutex::Lock em (_session.engine().process_lock()); + IO::MoreOutputs (fmt.mChannelsPerFrame); + + return 0; +} + +int +AUPlugin::set_stream_format (int scope, uint32_t cnt, AudioStreamBasicDescription& fmt) +{ + OSErr result; + + for (uint32_t i = 0; i < cnt; ++i) { + 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; + return -1; + } + } + + if (scope == kAudioUnitScope_Input) { + input_channels = fmt.mChannelsPerFrame; + } else { + output_channels = fmt.mChannelsPerFrame; + } + + return 0; +} + +uint32_t +AUPlugin::input_streams() const +{ + if (input_channels < 0) { + warning << string_compose (_("AUPlugin: %1 input_streams() called without any format set!"), name()) << endmsg; + return 1; + } + return input_channels; +} + + +uint32_t +AUPlugin::output_streams() const +{ + if (output_channels < 0) { + warning << string_compose (_("AUPlugin: %1 output_streams() called without any format set!"), name()) << endmsg; + return 1; + } + return output_channels; +} + +OSStatus +AUPlugin::render_callback(AudioUnitRenderActionFlags *ioActionFlags, + const AudioTimeStamp *inTimeStamp, + UInt32 inBusNumber, + UInt32 inNumberFrames, + AudioBufferList* ioData) +{ + /* not much to do - the data is already in the buffers given to us in connect_and_run() */ + + if (current_maxbuf == 0) { + error << _("AUPlugin: render callback called illegally!") << endmsg; + 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; + } + + cb_offset += inNumberFrames; + + 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; + + current_buffers = &bufs; + current_maxbuf = maxbuf; + current_offset = offset; + cb_offset = 0; + + buffers->mNumberBuffers = maxbuf; + + 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; + } + + ts.mSampleTime = frames_processed; + ts.mFlags = kAudioTimeStampSampleTimeValid; + + if (unit->Render (&flags, &ts, 0, nframes, buffers) == noErr) { + + current_maxbuf = 0; + frames_processed += nframes; + + 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)); + } + } + return 0; + } + + return -1; +} + +set +AUPlugin::automatable() const +{ + set automates; + + for (uint32_t i = 0; i < descriptors.size(); ++i) { + if (descriptors[i].automatable) { + automates.insert (i); + } + } + + return automates; +} + +string +AUPlugin::describe_parameter (uint32_t param) +{ + return descriptors[param].label; +} + +void +AUPlugin::print_parameter (uint32_t param, char* buf, uint32_t len) const +{ + // NameValue stuff here +} + +bool +AUPlugin::parameter_is_audio (uint32_t) const +{ + return false; +} + +bool +AUPlugin::parameter_is_control (uint32_t) const +{ + return true; +} + +bool +AUPlugin::parameter_is_input (uint32_t) const +{ + return false; +} + +bool +AUPlugin::parameter_is_output (uint32_t) const +{ + return false; +} + +XMLNode& +AUPlugin::get_state() +{ + LocaleGuard lg (X_("POSIX")); + XMLNode *root = new XMLNode (state_node_name()); + +#ifdef AU_STATE_SUPPORT + CFDataRef xmlData; + CFPropertyListRef propertyList; + + if (unit->GetAUPreset (propertyList) != noErr) { + return *root; + } + + // 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; + } + + /* re-parse XML bytes to create a libxml++ XMLTree that we can merge into + our state node. GACK! + */ + + XMLTree t; + + if (t.read_buffer (string ((const char*) CFDataGetBytePtr (xmlData), CFDataGetLength (xmlData)))) { + if (t.root()) { + root->add_child_copy (*t.root()); + } + } + + CFRelease (xmlData); + CFRelease (propertyList); +#else + if (!seen_get_state_message) { + info << _("Saving AudioUnit settings is not supported in this build of Ardour. Consider paying for a newer version") + << endmsg; + seen_get_state_message = true; + } +#endif + + return *root; +} + +int +AUPlugin::set_state(const XMLNode& node) +{ +#ifdef AU_STATE_SUPPORT + int ret = -1; + CFPropertyListRef propertyList; + LocaleGuard lg (X_("POSIX")); + + if (node.name() != state_node_name()) { + error << _("Bad node sent to AUPlugin::set_state") << endmsg; + return -1; + } + + if (node.children().empty()) { + return -1; + } + + XMLNode* top = node.children().front(); + XMLNode* copy = new XMLNode (*top); + + XMLTree t; + t.set_root (copy); + + const string& xml = t.write_buffer (); + CFDataRef xmlData = CFDataCreateWithBytesNoCopy (kCFAllocatorDefault, (UInt8*) xml.data(), xml.length(), kCFAllocatorNull); + CFStringRef errorString; + + propertyList = CFPropertyListCreateFromXMLData( kCFAllocatorDefault, + xmlData, + kCFPropertyListImmutable, + &errorString); + + CFRelease (xmlData); + + if (propertyList) { + if (unit->SetAUPreset (propertyList) == noErr) { + ret = 0; + } + CFRelease (propertyList); + } + + return ret; +#else + if (!seen_set_state_message) { + info << _("Restoring AudioUnit settings is not supported in this build of Ardour. Consider paying for a newer version") + << endmsg; + } + return 0; +#endif +} + +bool +AUPlugin::load_preset (const string preset_label) +{ +#ifdef AU_STATE_SUPPORT + bool ret = false; + CFPropertyListRef propertyList; + Glib::ustring path; + PresetMap::iterator x = preset_map.find (preset_label); + + if (x == preset_map.end()) { + return false; + } + + if ((propertyList = load_property_list (x->second)) != 0) { + if (unit->SetAUPreset (propertyList) == noErr) { + ret = true; + } + CFRelease(propertyList); + } + + return ret; +#else + if (!seen_loading_message) { + info << _("Loading AudioUnit presets is not supported in this build of Ardour. Consider paying for a newer version") + << endmsg; + seen_loading_message = true; + } + return true; +#endif +} + +bool +AUPlugin::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); + + v.push_back (Glib::get_home_dir()); + v.push_back ("Library"); + v.push_back ("Audio"); + 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; + } + + if (unit->GetAUPreset (propertyList) != noErr) { + return false; + } + + // 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; + } + + CFRelease(propertyList); + + return ret; +#else + if (!seen_saving_message) { + info << _("Saving AudioUnit presets is not supported in this build of Ardour. Consider paying for a newer version") + << endmsg; + seen_saving_message = true; + } + return false; +#endif +} + +//----------------------------------------------------------------------------- +// this is just a little helper function used by GetAUComponentDescriptionFromPresetFile() +static SInt32 +GetDictionarySInt32Value(CFDictionaryRef inAUStateDictionary, CFStringRef inDictionaryKey, Boolean * outSuccess) +{ + CFNumberRef cfNumber; + SInt32 numberValue = 0; + Boolean dummySuccess; + + if (outSuccess == NULL) + outSuccess = &dummySuccess; + if ( (inAUStateDictionary == NULL) || (inDictionaryKey == NULL) ) + { + *outSuccess = FALSE; + return 0; + } + + cfNumber = (CFNumberRef) CFDictionaryGetValue(inAUStateDictionary, inDictionaryKey); + if (cfNumber == NULL) + { + *outSuccess = FALSE; + return 0; + } + *outSuccess = CFNumberGetValue(cfNumber, kCFNumberSInt32Type, &numberValue); + if (*outSuccess) + return numberValue; + else + return 0; +} + +static OSStatus +GetAUComponentDescriptionFromStateData(CFPropertyListRef inAUStateData, ComponentDescription * outComponentDescription) +{ + CFDictionaryRef auStateDictionary; + ComponentDescription tempDesc = {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; + } + + 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); + + if (!gotValue) { + return kAudioUnitErr_InvalidPropertyValue; + } +#define kCurrentSavedStateVersion 0 + 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; + + *outComponentDescription = tempDesc; + return noErr; +} + + +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) { + + /* check the preset file path name against this plugin + ID. The idea is that all preset files for this plugin + include "/" in their path. + */ + + Plugin* p = (Plugin *) arg; + string match = p->maker(); + match += '/'; + match += p->name(); + + ret = str.find (match) != string::npos; + + if (ret == false) { + string m = p->maker (); + string n = p->name (); + strip_whitespace_edges (m); + strip_whitespace_edges (n); + match = m; + match += '/'; + match += n; + + ret = str.find (match) != string::npos; + } + } + + return ret; +} + +bool +check_and_get_preset_name (Component component, const string& pathstr, string& preset_name) +{ + 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)) { + + /* try to get the preset name from the property list */ + + if (CFGetTypeID(plist) == CFDictionaryGetTypeID()) { + + const void* psk = CFDictionaryGetValue ((CFMutableDictionaryRef)plist, CFSTR(kAUPresetNameKey)); + + if (psk) { + + const char* p = CFStringGetCStringPtr ((CFStringRef) psk, kCFStringEncodingUTF8); + + if (!p) { + char buf[PATH_MAX+1]; + + if (CFStringGetCString ((CFStringRef)psk, buf, sizeof (buf), kCFStringEncodingUTF8)) { + preset_name = buf; + } + } + } + } + } + } + + CFRelease (plist); + + return true; +} + +std::string +AUPlugin::current_preset() const +{ + string preset_name; + +#ifdef AU_STATE_SUPPORT + CFPropertyListRef propertyList; + + if (unit->GetAUPreset (propertyList) == noErr) { + preset_name = get_preset_name_in_plist (propertyList); + CFRelease(propertyList); + } +#endif + return preset_name; +} + +vector +AUPlugin::get_presets () +{ + vector* preset_files; + vector presets; + PathScanner scanner; + + preset_files = scanner (preset_search_path, au_preset_filter, this, true, true, -1, true); + + if (!preset_files) { + return presets; + } + + for (vector::iterator x = preset_files->begin(); x != preset_files->end(); ++x) { + + string path = *(*x); + string preset_name; + + /* make an initial guess at the preset name using the path */ + + preset_name = Glib::path_get_basename (path); + preset_name = preset_name.substr (0, preset_name.find_last_of ('.')); + + /* check that this preset file really matches this plugin + and potentially get the "real" preset name from + within the file. + */ + + if (check_and_get_preset_name (get_comp()->Comp(), path, preset_name)) { + presets.push_back (preset_name); + preset_map[preset_name] = path; + } + + delete *x; + } + + delete preset_files; + + return presets; +} + +bool +AUPlugin::has_editor () const +{ + // even if the plugin doesn't have its own editor, the AU API can be used + // to create one that looks native. + return true; +} + +AUPluginInfo::AUPluginInfo (boost::shared_ptr d) + : descriptor (d) +{ + +} + +AUPluginInfo::~AUPluginInfo () +{ +} + +PluginPtr +AUPluginInfo::load (Session& session) +{ + try { + PluginPtr plugin; + + 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)); + } + + plugin->set_info (PluginInfoPtr (new AUPluginInfo (*this))); + return plugin; + } + + catch (failed_constructor &err) { + return PluginPtr (); + } +} + +Glib::ustring +AUPluginInfo::au_cache_path () +{ + return Glib::build_filename (ARDOUR::get_user_ardour_path(), "au_cache"); +} + +PluginInfoList +AUPluginInfo::discover () +{ + XMLTree tree; + + if (!Glib::file_test (au_cache_path(), Glib::FILE_TEST_EXISTS)) { + ARDOUR::BootMessage (_("Discovering AudioUnit plugins (could take some time ...)")); + } + + PluginInfoList plugs; + + discover_fx (plugs); + discover_music (plugs); + discover_generators (plugs); + + return plugs; +} + +void +AUPluginInfo::discover_music (PluginInfoList& plugs) +{ + CAComponentDescription desc; + desc.componentFlags = 0; + desc.componentFlagsMask = 0; + desc.componentSubType = 0; + desc.componentManufacturer = 0; + desc.componentType = kAudioUnitType_MusicEffect; + + discover_by_description (plugs, desc); +} + +void +AUPluginInfo::discover_fx (PluginInfoList& plugs) +{ + CAComponentDescription desc; + desc.componentFlags = 0; + desc.componentFlagsMask = 0; + desc.componentSubType = 0; + desc.componentManufacturer = 0; + desc.componentType = kAudioUnitType_Effect; + + discover_by_description (plugs, desc); +} + +void +AUPluginInfo::discover_generators (PluginInfoList& plugs) +{ + CAComponentDescription desc; + desc.componentFlags = 0; + desc.componentFlagsMask = 0; + desc.componentSubType = 0; + desc.componentManufacturer = 0; + desc.componentType = kAudioUnitType_Generator; + + discover_by_description (plugs, desc); +} + +void +AUPluginInfo::discover_by_description (PluginInfoList& plugs, CAComponentDescription& desc) +{ + Component comp = 0; + + comp = FindNextComponent (NULL, &desc); + + while (comp != NULL) { + CAComponentDescription temp; + GetComponentInfo (comp, &temp, NULL, NULL, NULL); + + AUPluginInfoPtr info (new AUPluginInfo + (boost::shared_ptr (new CAComponentDescription(temp)))); + + /* no panners, format converters or i/o AU's for our purposes + */ + + switch (info->descriptor->Type()) { + case kAudioUnitType_Panner: + case kAudioUnitType_OfflineEffect: + case kAudioUnitType_FormatConverter: + continue; + case kAudioUnitType_Output: + case kAudioUnitType_MusicDevice: + case kAudioUnitType_MusicEffect: + case kAudioUnitType_Effect: + case kAudioUnitType_Mixer: + case kAudioUnitType_Generator: + break; + default: + 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; + info->unique_id = stringify_descriptor (*info->descriptor); + + /* XXX not sure of the best way to handle plugin versioning yet + */ + + CAComponent cacomp (*info->descriptor); + + 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. + */ + + info->n_inputs = info->cache.io_configs.front().first; + info->n_outputs = info->cache.io_configs.front().second; + + if (info->cache.io_configs.size() > 1) { + cerr << "ODD: variable IO config for " << info->unique_id << endl; + } + + 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, + UInt32 version, + CAComponent& comp, + AUPluginCachedInfo& cinfo, + const std::string& name) +{ + std::string id; + char buf[32]; + + /* concatenate unique ID with version to provide a key for cached info lookup. + this ensures we don't get stale information, or should if plugin developers + follow Apple "guidelines". + */ + + snprintf (buf, sizeof (buf), "%u", version); + id = unique_id; + id += '/'; + id += buf; + + CachedInfoMap::iterator cim = cached_info.find (id); + + if (cim != cached_info.end()) { + cinfo = cim->second; + return true; + } + + CAAudioUnit unit; + AUChannelInfo* channel_info; + UInt32 cnt; + int ret; + + ARDOUR::BootMessage (string_compose (_("Checking AudioUnit: %1"), name)); + + try { + + if (CAAudioUnit::Open (comp, unit) != noErr) { + return false; + } + + } 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; + + } + + if ((ret = unit.GetChannelInfo (&channel_info, cnt)) < 0) { + return false; + } + + if (ret > 0) { + /* no explicit info available */ + + 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)); + } + + free (channel_info); + } + + add_cached_info (id, cinfo); + save_cached_info (); + + return true; +} + +void +AUPluginInfo::add_cached_info (const std::string& id, AUPluginCachedInfo& cinfo) +{ + cached_info[id] = cinfo; +} + +void +AUPluginInfo::save_cached_info () +{ + XMLNode* node; + + node = new XMLNode (X_("AudioUnitPluginCache")); + + for (map::iterator i = cached_info.begin(); i != cached_info.end(); ++i) { + XMLNode* parent = new XMLNode (X_("plugin")); + parent->add_property ("id", i->first); + node->add_child_nocopy (*parent); + + for (vector >::iterator j = i->second.io_configs.begin(); j != i->second.io_configs.end(); ++j) { + + XMLNode* child = new XMLNode (X_("io")); + char buf[32]; + + snprintf (buf, sizeof (buf), "%d", j->first); + child->add_property (X_("in"), buf); + snprintf (buf, sizeof (buf), "%d", j->second); + child->add_property (X_("out"), buf); + parent->add_child_nocopy (*child); + } + + } + + 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()); + } +} + +int +AUPluginInfo::load_cached_info () +{ + Glib::ustring path = au_cache_path (); + XMLTree tree; + + if (!Glib::file_test (path, Glib::FILE_TEST_EXISTS)) { + return 0; + } + + tree.read (path); + const XMLNode* root (tree.root()); + + if (root->name() != X_("AudioUnitPluginCache")) { + 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; + const XMLNodeList gchildren = child->children(); + const XMLProperty* prop = child->property (X_("id")); + + if (!prop) { + continue; + } + + std::string id = prop->value(); + AUPluginCachedInfo cinfo; + + for (XMLNodeConstIterator giter = gchildren.begin(); giter != gchildren.end(); giter++) { + + gchild = *giter; + + 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)) { + in = atoi (iprop->value()); + out = atoi (iprop->value()); + + cinfo.io_configs.push_back (pair (in, out)); + } + } + } + + if (cinfo.io_configs.size()) { + add_cached_info (id, cinfo); + } + } + } + + return 0; +} + +void +AUPluginInfo::get_names (CAComponentDescription& comp_desc, std::string& name, Glib::ustring& maker) +{ + CFStringRef itemName = NULL; + + // Marc Poirier-style item name + CAComponent auComponent (comp_desc); + if (auComponent.IsValid()) { + CAComponentDescription dummydesc; + Handle nameHandle = NewHandle(sizeof(void*)); + if (nameHandle != NULL) { + OSErr err = GetComponentInfo(auComponent.Comp(), &dummydesc, nameHandle, NULL, NULL); + if (err == noErr) { + ConstStr255Param nameString = (ConstStr255Param) (*nameHandle); + if (nameString != NULL) { + itemName = CFStringCreateWithPascalString(kCFAllocatorDefault, nameString, CFStringGetSystemEncoding()); + } + } + 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("%@ - %@ - %@"), + compTypeString, compManufacturerString, compSubTypeString); + + if (compTypeString != NULL) + CFRelease(compTypeString); + if (compSubTypeString != NULL) + CFRelease(compSubTypeString); + if (compManufacturerString != NULL) + CFRelease(compManufacturerString); + } + + string str = CFStringRefToStdString(itemName); + string::size_type colon = str.find (':'); + + if (colon) { + name = str.substr (colon+1); + maker = str.substr (0, colon); + // strip_whitespace_edges (maker); + // strip_whitespace_edges (name); + } else { + name = str; + maker = "unknown"; + } +} + +// 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 << " - "; + + s << StringForOSType (desc.Manu(), str); + + return s.str(); +}