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working AU instruments (MIDI-driven synth plugins)

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git-svn-id: svn://localhost/ardour2/branches/3.0@10238 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
Paul Davis 2011-10-19 17:18:47 +00:00
parent f3d5ad776b
commit a189d3e43b
1 changed files with 147 additions and 111 deletions
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258
libs/ardour/audio_unit.cc
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@ -398,12 +398,19 @@ void
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;
}
@ -456,14 +463,17 @@ AUPlugin::init ()
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();
}
@ -977,12 +987,11 @@ AUPlugin::output_streams() const
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 */
@ -997,25 +1006,28 @@ AUPlugin::can_support_io_configuration (const ChanCount& in, ChanCount& out) con
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;
@ -1025,6 +1037,7 @@ AUPlugin::can_support_io_configuration (const ChanCount& in, ChanCount& out) con
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;
}
@ -1034,21 +1047,23 @@ AUPlugin::can_support_io_configuration (const ChanCount& in, ChanCount& out) con
*/
if (possible_out == -1) {
/* out much match in (UNLIKELY!!) */
audio_out = audio_in;
plugcnt = 1;
/* any configuration possible, provide stereo output */
audio_out = 2;
found = true;
} else if (possible_out == -2) {
/* any configuration possible, pick matching */
audio_out = audio_in;
plugcnt = 1;
/* plugins shouldn't really use (0,-2) but might.
any configuration possible, provide stereo output
*/
audio_out = 2;
found = true;
} else if (possible_out < -2) {
/* explicit variable number of outputs, pick maximum */
/* 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;
}
}
@ -1059,19 +1074,19 @@ AUPlugin::can_support_io_configuration (const ChanCount& in, ChanCount& out) con
if (possible_out == -1) {
/* out much match in */
audio_out = audio_in;
plugcnt = 1;
found = true;
} else if (possible_out == -2) {
/* any configuration possible, pick matching */
audio_out = audio_in;
plugcnt = 1;
found = true;
} else if (possible_out < -2) {
/* explicit variable number of outputs, pick maximum */
/* explicitly variable number of outputs, pick maximum */
audio_out = -possible_out;
plugcnt = 1;
found = true;
} else {
/* exact number of outputs */
audio_out = possible_out;
plugcnt = 1;
found = true;
}
}
@ -1080,19 +1095,21 @@ AUPlugin::can_support_io_configuration (const ChanCount& in, ChanCount& out) con
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;
}
}
@ -1102,67 +1119,72 @@ AUPlugin::can_support_io_configuration (const ChanCount& in, ChanCount& out) con
if (audio_in > -possible_in) {
/* request is too large */
plugcnt = -1;
}
if (possible_out == -1) {
/* out must match in */
audio_out = audio_in;
plugcnt = 1;
/* any output configuration possible, provide stereo out */
audio_out = 2;
found = true;
} else if (possible_out == -2) {
error << string_compose (_("AU plugin %1 has illegal IO configuration (-2,-2)"), name())
<< endmsg;
plugcnt = -1;
/* plugins shouldn't really use (<-2,-2) but might.
interpret as (<-2,-1): any configuration possible, provide stereo output
*/
audio_out = 2;
found = true;
} else if (possible_out < -2) {
/* explicit variable number of outputs, pick maximum */
/* 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
@ -1221,39 +1243,11 @@ AUPlugin::render_callback(AudioUnitRenderActionFlags*,
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;
@ -1285,29 +1279,44 @@ AUPlugin::connect_and_run (BufferSet& bufs, ChanMapping in_map, ChanMapping out_
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()));
for (uint32_t i = 0; i < buffers->mNumberBuffers; ++i) {
buffers->mNumberBuffers = output_channels;
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 */
@ -1317,12 +1326,9 @@ AUPlugin::connect_and_run (BufferSet& bufs, ChanMapping in_map, ChanMapping out_
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 */
@ -1330,21 +1336,31 @@ AUPlugin::connect_and_run (BufferSet& bufs, ChanMapping in_map, ChanMapping out_
}
}
/* 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));
}
}
@ -1353,9 +1369,8 @@ AUPlugin::connect_and_run (BufferSet& bufs, ChanMapping in_map, ChanMapping out_
did not fill/touch/use.
*/
for (;i < maxbuf; ++i) {
Sample* buffer_address= bufs.get_audio (i).data (offset);
memset (buffer_address, 0, nframes * sizeof (Sample));
for (;i < output_channels; ++i) {
memset (bufs.get_audio (i).data (offset), 0, nframes * sizeof (Sample));
}
return 0;
@ -2273,10 +2288,29 @@ 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.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));
@ -2347,7 +2381,9 @@ AUPluginInfo::cached_io_configuration (const std::string& 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 {