AUPlugin::discover_factory_presets ()
{
CFArrayRef presets;
- UInt32 dataSize = sizeof (presets);
+ UInt32 dataSize;
+ Boolean isWritable;
OSStatus err;
- DEBUG_TRACE (DEBUG::AudioUnits, "get property FactoryPresets in global scope\n");
+ if ((err = unit->GetPropertyInfo (kAudioUnitProperty_FactoryPresets, kAudioUnitScope_Global, 0, &dataSize, &isWritable)) != 0) {
+ DEBUG_TRACE (DEBUG::AudioUnits, "no factory presets for AU\n");
+ return;
+ }
+
+ assert (dataSize == sizeof (presets));
+
if ((err = unit->GetProperty (kAudioUnitProperty_FactoryPresets, kAudioUnitScope_Global, 0, (void*) &presets, &dataSize)) != 0) {
- cerr << "cannot get factory preset info: " << err << endl;
+ error << string_compose (_("cannot get factory preset info: errcode %1"), err) << endmsg;
return;
}
unit->GetElementCount (kAudioUnitScope_Output, output_elements);
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) {
+ 0, (void*) &renderCallbackInfo, sizeof(renderCallbackInfo))) != 0) {
cerr << "cannot install render callback (err = " << err << ')' << endl;
throw failed_constructor();
}
bool
AUPlugin::can_support_io_configuration (const ChanCount& in, ChanCount& out) 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.
+ // Note: We never attempt to multiply-instantiate plugins to meet io configurations.
int32_t audio_in = in.n_audio();
int32_t audio_out;
- int32_t plugcnt = -1;
+ bool found = false;
AUPluginInfoPtr pinfo = boost::dynamic_pointer_cast<AUPluginInfo>(get_info());
/* lets check MIDI first */
DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1 has %2 IO configurations\n", name(), io_configs.size()));
- //Ardour expects the plugin to tell it the output configuration
- //but AU plugins can have multiple I/O configurations
- //in most cases (since we don't allow special routing like sidechains in A2, we want to preserve the number of streams
- //so first lets see if there's a configuration that keeps out==in
+ //Ardour expects the plugin to tell it the output
+ //configuration but AU plugins can have multiple I/O
+ //configurations in most cases. so first lets see
+ //if there's a configuration that keeps out==in
audio_out = audio_in;
for (vector<pair<int,int> >::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) {
+ if ((possible_in == audio_in) && (possible_out == audio_out)) {
DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("\tCHOSEN: in %1 out %2\n", in, out));
return 1;
}
}
/* now allow potentially "imprecise" matches */
+
audio_out = -1;
+
for (vector<pair<int,int> >::iterator i = io_configs.begin(); i != io_configs.end(); ++i) {
int32_t possible_in = i->first;
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;
}
*/
if (possible_out == -1) {
- /* out much match in (UNLIKELY!!) */
- audio_out = audio_in;
- plugcnt = 1;
+ /* any configuration possible, provide stereo output */
+ audio_out = 2;
+ found = true;
} else if (possible_out == -2) {
- /* any configuration possible, pick matching */
- audio_out = audio_in;
- plugcnt = 1;
+ /* plugins shouldn't really use (0,-2) but might.
+ any configuration possible, provide stereo output
+ */
+ audio_out = 2;
+ found = true;
} else if (possible_out < -2) {
- /* explicit variable number of outputs, pick maximum */
+ /* explicitly variable number of outputs, pick maximum */
audio_out = -possible_out;
- plugcnt = 1;
+ found = true;
} else {
/* exact number of outputs */
audio_out = possible_out;
- plugcnt = 1;
+ found = true;
}
}
if (possible_out == -1) {
/* out much match in */
audio_out = audio_in;
- plugcnt = 1;
+ found = true;
} else if (possible_out == -2) {
/* any configuration possible, pick matching */
audio_out = audio_in;
- plugcnt = 1;
+ found = true;
} else if (possible_out < -2) {
- /* explicit variable number of outputs, pick maximum */
+ /* explicitly variable number of outputs, pick maximum */
audio_out = -possible_out;
- plugcnt = 1;
+ found = true;
} else {
/* exact number of outputs */
audio_out = possible_out;
- plugcnt = 1;
+ found = true;
}
}
if (possible_out == -1) {
/* any configuration possible, pick matching */
audio_out = audio_in;
- plugcnt = 1;
+ found = true;
} else if (possible_out == -2) {
- error << string_compose (_("AU plugin %1 has illegal IO configuration (-2,-2)"), name())
- << endmsg;
- plugcnt = -1;
+ /* plugins shouldn't really use (-2,-2) but might.
+ interpret as (-1,-1).
+ */
+ audio_out = audio_in;
+ found = true;
} else if (possible_out < -2) {
- /* explicit variable number of outputs, pick maximum */
+ /* explicitly variable number of outputs, pick maximum */
audio_out = -possible_out;
- plugcnt = 1;
+ found = true;
} else {
/* exact number of outputs */
audio_out = possible_out;
- plugcnt = 1;
+ found = true;
}
}
if (audio_in > -possible_in) {
/* request is too large */
- plugcnt = -1;
}
if (possible_out == -1) {
- /* out must match in */
- audio_out = audio_in;
- plugcnt = 1;
+ /* any output configuration possible, provide stereo out */
+ audio_out = 2;
+ found = true;
} else if (possible_out == -2) {
- error << string_compose (_("AU plugin %1 has illegal IO configuration (-2,-2)"), name())
- << endmsg;
- plugcnt = -1;
+ /* plugins shouldn't really use (<-2,-2) but might.
+ interpret as (<-2,-1): any configuration possible, provide stereo output
+ */
+ audio_out = 2;
+ found = true;
} else if (possible_out < -2) {
- /* explicit variable number of outputs, pick maximum */
+ /* explicitly variable number of outputs, pick maximum */
audio_out = -possible_out;
- plugcnt = 1;
+ found = true;
} else {
/* exact number of outputs */
audio_out = possible_out;
- plugcnt = 1;
+ found = true;
}
}
- if (possible_in == audio_in) {
+ if (possible_in && (possible_in == audio_in)) {
/* exact number of inputs ... must match obviously */
if (possible_out == -1) {
- /* out must match in */
- audio_out = audio_in;
- plugcnt = 1;
+ /* any output configuration possible, provide stereo output */
+ audio_out = 2;
+ found = true;
} else if (possible_out == -2) {
- /* any output configuration, pick matching */
- audio_out = audio_in;
- plugcnt = -1;
+ /* plugins shouldn't really use (>0,-2) but might.
+ interpret as (>0,-1):
+ any output configuration possible, provide stereo output
+ */
+ audio_out = 2;
+ found = true;
} else if (possible_out < -2) {
- /* explicit variable number of outputs, pick maximum */
+ /* explicitly variable number of outputs, pick maximum */
audio_out = -possible_out;
- plugcnt = 1;
+ found = true;
} else {
/* exact number of outputs */
audio_out = possible_out;
- plugcnt = 1;
+ found = true;
}
}
- if (plugcnt == 1) {
+ if (found) {
break;
}
}
- if (plugcnt > 0) {
- DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("\tCHOSEN: in %1 out %2 plugcnt %3\n", in, out, plugcnt));
+ if (found) {
+ DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("\tCHOSEN: in %1 out %2\n", in, out));
} else {
- DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("\FAIL: no io configs match %1\n", in));
+ DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("\tFAIL: no io configs match %1\n", in));
+ return false;
}
out.set (DataType::MIDI, 0);
out.set (DataType::AUDIO, audio_out);
- return plugcnt;
+ return true;
}
int
UInt32 inNumberFrames,
AudioBufferList* ioData)
{
- if (_has_midi_input) {
- assert (current_buffers->count().n_midi() > 0);
-
- /* deliver the first (and assumed only) MIDI buffer's data
- to the plugin
- */
-
- MidiBuffer& mb (current_buffers->get_midi(0));
-
- for (MidiBuffer::iterator i = mb.begin(); i != mb.end(); ++i) {
- Evoral::MIDIEvent<MidiBuffer::TimeType> ev = *i;
- switch (ev.type()) {
- case MIDI_CMD_NOTE_ON:
- case MIDI_CMD_NOTE_OFF:
- case MIDI_CMD_CONTROL:
- case MIDI_CMD_BENDER:
- case MIDI_CMD_PGM_CHANGE:
- case MIDI_CMD_CHANNEL_PRESSURE:
- {
- const uint8_t* b = ev.buffer();
- unit->MIDIEvent (b[0], b[1], b[2], ev.time());
- break;
- }
-
- default:
- /* plugins do not get other stuff by default */
- break;
- };
- }
- }
-
/* not much to do with audio - the data is already in the buffers given to us in connect_and_run() */
+ DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1: render callback, frames %2 bufs %3\n",
+ name(), inNumberFrames, ioData->mNumberBuffers));
+
if (current_maxbuf == 0) {
error << _("AUPlugin: render callback called illegally!") << endmsg;
return kAudioUnitErr_CannotDoInCurrentContext;
AudioUnitRenderActionFlags flags = 0;
AudioTimeStamp ts;
OSErr err;
- uint32_t maxbuf = bufs.count().n_audio();
if (requires_fixed_size_buffers() && (nframes != _last_nframes)) {
unit->GlobalReset();
_last_nframes = nframes;
}
+ /* 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));
+
current_buffers = &bufs;
- current_maxbuf = maxbuf;
+ current_maxbuf = bufs.count().n_audio(); // number of input audio buffers
current_offset = offset;
cb_offset = 0;
- buffers->mNumberBuffers = min ((uint32_t) output_channels, maxbuf);
+ 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()));
+
+ buffers->mNumberBuffers = output_channels;
- for (uint32_t i = 0; i < buffers->mNumberBuffers; ++i) {
+ for (uint32_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. no documentation on what setting it
+ to a non-null value means.
+ */
buffers->mBuffers[i].mData = 0;
}
if (_has_midi_input) {
- for (uint32_t i = 0; i < bufs.count().n_midi(); ++i) {
+ uint32_t nmidi = bufs.count().n_midi();
+
+ for (uint32_t i = 0; i < nmidi; ++i) {
/* one MIDI port/buffer only */
Evoral::MIDIEvent<framepos_t> ev (*i);
if (ev.is_channel_event()) {
- DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1: MIDI event %2\n",
- name(), ev));
- unit->MIDIEvent (ev.type() << 8 | ev.channel(),
- ev.buffer()[1],
- ev.buffer()[2],
- ev.time());
+ const uint8_t* b = ev.buffer();
+ DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1: MIDI event %2\n", name(), ev));
+ unit->MIDIEvent (b[0], b[1], b[2], ev.time());
}
/* XXX need to handle sysex and other message types */
}
}
+ /* does this really mean anything ?
+ */
+
ts.mSampleTime = frames_processed;
ts.mFlags = kAudioTimeStampSampleTimeValid;
+ // DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1 render flags=%2 time=%3 nframes=%4 buffers=%5\n",
+ // name(), flags, frames_processed, nframes, buffers->mNumberBuffers));
+
if ((err = unit->Render (&flags, &ts, 0, nframes, buffers)) == noErr) {
current_maxbuf = 0;
frames_processed += nframes;
- uint32_t limit = min ((uint32_t) buffers->mNumberBuffers, maxbuf);
- uint32_t i;
+ DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1 rendered %2 buffers of %3\n",
+ name(), buffers->mNumberBuffers, output_channels));
+
+ int32_t limit = min ((int32_t) buffers->mNumberBuffers, output_channels);
+ int32_t i;
for (i = 0; i < limit; ++i) {
Sample* expected_buffer_address= bufs.get_audio (i).data (offset);
if (expected_buffer_address != buffers->mBuffers[i].mData) {
- // cerr << "chn " << i << " rendered into " << bufs[i]+offset << endl;
+ /* plugin provided its own buffer for output so copy it back to where we want it
+ */
memcpy (expected_buffer_address, buffers->mBuffers[i].mData, nframes * sizeof (Sample));
}
}
did not fill/touch/use.
*/
- for (;i < maxbuf; ++i) {
- Sample* buffer_address= bufs.get_audio (i).data (offset);
- memset (buffer_address, 0, nframes * sizeof (Sample));
+ for (;i < output_channels; ++i) {
+ memset (bufs.get_audio (i).data (offset), 0, nframes * sizeof (Sample));
}
return 0;
of values. in ::can_do() we use the whole system, but here
we need a single pair of values. XXX probably means we should
remove any use of these values.
+
+ for now, if the plugin provides a wildcard, treat it as 1. we really
+ don't care much, because whether we can handle an i/o configuration
+ depends upon ::can_support_io_configuration(), not these counts.
+
+ they exist because other parts of ardour try to present i/o configuration
+ info to the user, which should perhaps be revisited.
*/
- info->n_inputs.set (DataType::AUDIO, info->cache.io_configs.front().first);
- info->n_outputs.set (DataType::AUDIO, info->cache.io_configs.front().second);
+ int32_t possible_in = info->cache.io_configs.front().first;
+ int32_t possible_out = info->cache.io_configs.front().second;
+
+ if (possible_in > 0) {
+ info->n_inputs.set (DataType::AUDIO, possible_in);
+ } else {
+ info->n_inputs.set (DataType::AUDIO, 1);
+ }
+
+ 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));
/* no explicit info available, so default to 1in/1out */
- cinfo.io_configs.push_back (pair<int,int> (1, 1));
+ /* XXX this is wrong. we should be indicating wildcard values */
+
+ cinfo.io_configs.push_back (pair<int,int> (-1, -1));
} else {
projects / ardour.git / commitdiff