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
-
- if (in.n_midi() > 0 && audio_in == 0) {
- audio_out = 2; // prefer stereo version if available.
- } else {
- audio_out = audio_in;
- }
+ // preferred setting (provided by plugin_insert)
+ audio_out = out.n_audio ();
/* kAudioUnitProperty_SupportedNumChannels
* https://developer.apple.com/library/mac/documentation/MusicAudio/Conceptual/AudioUnitProgrammingGuide/TheAudioUnit/TheAudioUnit.html#//apple_ref/doc/uid/TP40003278-CH12-SW20
audio_out = -1;
bool found = false;
+ float penalty = 9999;
+ const int preferred_out = out.n_audio ();
+ int used_possible_in = 0;
+
+#define FOUNDCFG(nch) { \
+ float p = fabsf ((float)(nch) - preferred_out); \
+ if ((nch) > preferred_out) { p *= 1.1; } \
+ if (p < penalty) { \
+ used_possible_in = possible_in; \
+ audio_out = (nch); \
+ penalty = p; \
+ found = true; \
+ } \
+}
+
for (vector<pair<int,int> >::iterator i = io_configs.begin(); i != io_configs.end(); ++i) {
int32_t possible_in = i->first;
/* no inputs, generators & instruments */
if (possible_out == -1) {
/* any configuration possible, provide stereo output */
- audio_out = 2;
- found = true;
+ FOUNDCFG (preferred_out);
} else if (possible_out == -2) {
/* invalid, should be (0, -1) */
- audio_out = 2;
- found = true;
+ FOUNDCFG (preferred_out);
} else if (possible_out < -2) {
- /* explicitly variable number of outputs. */
- audio_out = 2;
- found = true;
+ /* variable number of outputs up to -N, */
+ FOUNDCFG (min (-possible_out, preferred_out));
} else {
/* exact number of outputs */
- audio_out = possible_out;
- found = true;
+ FOUNDCFG (possible_out);
}
}
/* wildcard for input */
if (possible_out == -1) {
/* out must match in */
- audio_out = audio_in;
- found = true;
+ FOUNDCFG (audio_in);
} else if (possible_out == -2) {
/* any configuration possible, pick matching */
- audio_out = audio_in;
- found = true;
+ FOUNDCFG (preferred_out);
} else if (possible_out < -2) {
/* explicitly variable number of outputs, pick maximum */
- audio_out = -possible_out;
- found = true;
+ FOUNDCFG (max (-possible_out, preferred_out));
+ /* and try min, too, in case the penalty is lower */
+ FOUNDCFG (min (-possible_out, preferred_out));
} else {
/* exact number of outputs */
- audio_out = possible_out;
- found = true;
+ FOUNDCFG (possible_out);
}
}
if (possible_in == -2) {
if (possible_out == -1) {
/* any configuration possible, pick matching */
- audio_out = audio_in;
- found = true;
+ FOUNDCFG (preferred_out);
} else if (possible_out == -2) {
/* invalid. interpret as (-1, -1) */
- audio_out = audio_in;
- found = true;
+ FOUNDCFG (preferred_out);
} else if (possible_out < -2) {
- /* explicitly variable number of outputs, pick maximum */
- audio_out = -possible_out;
- found = true;
+ /* invalid, interpret as (<-2, <-2)
+ * variable number of outputs up to -N, */
+ FOUNDCFG (min (-possible_out, preferred_out));
} else {
/* exact number of outputs */
- audio_out = possible_out;
- found = true;
+ FOUNDCFG (possible_out);
}
}
/* request is too large */
} else if (possible_out == -1) {
/* any output configuration possible, provide stereo out */
- audio_out = 2;
- found = true;
+ FOUNDCFG (preferred_out);
} else if (possible_out == -2) {
/* invalid. interpret as (<-2, -1) */
- audio_out = 2;
- found = true;
+ FOUNDCFG (preferred_out);
} else if (possible_out < -2) {
- /* explicitly variable number of outputs, pick stereo */
- audio_out = 2;
- found = true;
+ /* variable number of outputs up to -N, */
+ FOUNDCFG (min (-possible_out, preferred_out));
} else {
/* exact number of outputs */
- audio_out = possible_out;
- found = true;
+ FOUNDCFG (possible_out);
}
}
if (possible_in && (possible_in == audio_in)) {
/* exact number of inputs ... must match obviously */
if (possible_out == -1) {
- /* any output configuration possible, provide stereo output */
- audio_out = 2;
- found = true;
+ /* any output configuration possible */
+ FOUNDCFG (preferred_out);
} else if (possible_out == -2) {
/* 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;
+ * interpret as (>0,-1):
+ */
+ FOUNDCFG (preferred_out);
} else if (possible_out < -2) {
- /* explicitly variable number of outputs, pick maximum */
- audio_out = -possible_out;
- found = true;
+ /* > 0, < -2 is not specified
+ * interpret as up to -N */
+ FOUNDCFG (min (-possible_out, preferred_out));
} else {
/* exact number of outputs */
- audio_out = possible_out;
- found = true;
- }
- }
-
- if (found) {
- if (possible_in < -2 && audio_in == 0) {
- // input-port count cannot be zero, use as many ports
- // as outputs, but at most abs(possible_in)
- audio_input_cnt = max (1, min (audio_out, -possible_in));
+ FOUNDCFG (possible_out);
}
- break;
}
-
}
+
if (!found && imprecise) {
/* try harder */
for (vector<pair<int,int> >::iterator i = io_configs.begin(); i != io_configs.end(); ++i) {
imprecise->set (DataType::AUDIO, possible_in);
if (possible_out == -1 || possible_out == -2) {
- audio_out = 2;
- found = true;
+ FOUNDCFG (2);
} else if (possible_out < -2) {
/* explicitly variable number of outputs, pick maximum */
- audio_out = -possible_out;
- found = true;
+ FOUNDCFG (min (-possible_out, preferred_out));
} else {
/* exact number of outputs */
- audio_out = possible_out;
- found = true;
- }
-
- if (found) {
- // ideally we'll keep iterating and take the "best match"
- // whatever "best" means:
- // least unconnected inputs, least silenced inputs,
- // closest match of inputs == outputs
- break;
+ FOUNDCFG (possible_out);
}
+ // ideally we'll also find the closest, best matching
+ // input configuration with minimal output penalty...
}
}
if (found) {
+ if (used_possible_in < -2 && audio_in == 0) {
+ // input-port count cannot be zero, use as many ports
+ // as outputs, but at most abs(possible_in)
+ audio_input_cnt = max (1, min (audio_out, -used_possible_in));
+ }
+
out.set (DataType::MIDI, 0); /// XXX
out.set (DataType::AUDIO, audio_out);
DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("\tCHOSEN: in %1 out %2\n", in, out));
int32_t audio_out;
int32_t midi_out = 0; // TODO handle _has_midi_output
- if (in.n_midi() > 0 && audio_in == 0) {
- audio_out = 2; // prefer stereo version if available.
- } else {
- audio_out = audio_in;
- }
-
+ // preferred setting (provided by plugin_insert)
+ assert (out.n_audio () > 0);
+ audio_out = out.n_audio ();
for (luabridge::Iterator i (iotable); !i.isNil (); ++i) {
assert (i.value ().type () == LUA_TTABLE);
audio_out = -1;
bool found = false;
+ float penalty = 9999;
+ const int preferred_out = out.n_audio ();
+
+#define FOUNDCFG(nch) { \
+ float p = fabsf ((float)(nch) - preferred_out); \
+ if ((nch) > preferred_out) { p *= 1.1; } \
+ if (p < penalty) { \
+ audio_out = (nch); \
+ penalty = p; \
+ found = true; \
+ } \
+}
+
for (luabridge::Iterator i (iotable); !i.isNil (); ++i) {
assert (i.value ().type () == LUA_TTABLE);
luabridge::LuaRef io (i.value ());
if (possible_in == 0) {
/* no inputs, generators & instruments */
if (possible_out == -1) {
- /* any configuration possible, provide stereo output */
- audio_out = 2;
- found = true;
+ /* any configuration possible, stereo output */
+ FOUNDCFG (preferred_out);
} else if (possible_out == -2) {
/* invalid, should be (0, -1) */
- audio_out = 2;
- found = true;
+ FOUNDCFG (preferred_out);
} else if (possible_out < -2) {
- /* variable number of outputs. -> whatever */
- audio_out = 2;
- found = true;
+ /* variable number of outputs up to -N, */
+ FOUNDCFG (min (-possible_out, preferred_out));
} else {
/* exact number of outputs */
- audio_out = possible_out;
- found = true;
+ FOUNDCFG (possible_out);
}
}
/* wildcard for input */
if (possible_out == -1) {
/* out must match in */
- audio_out = audio_in;
- found = true;
+ FOUNDCFG (audio_in);
} else if (possible_out == -2) {
/* any configuration possible, pick matching */
- audio_out = audio_in;
- found = true;
+ FOUNDCFG (preferred_out);
} else if (possible_out < -2) {
/* explicitly variable number of outputs, pick maximum */
- audio_out = -possible_out;
- found = true;
+ FOUNDCFG (max (-possible_out, preferred_out));
+ /* and try min, too, in case the penalty is lower */
+ FOUNDCFG (min (-possible_out, preferred_out));
} else {
/* exact number of outputs */
- audio_out = possible_out;
- found = true;
+ FOUNDCFG (possible_out);
}
}
if (possible_out == -1) {
/* any configuration possible, pick matching */
- audio_out = audio_in;
- found = true;
+ FOUNDCFG (preferred_out);
} else if (possible_out == -2) {
/* invalid. interpret as (-1, -1) */
- audio_out = audio_in;
- found = true;
+ FOUNDCFG (preferred_out);
} else if (possible_out < -2) {
- /* explicitly variable number of outputs, pick maximum */
- audio_out = -possible_out;
- found = true;
+ /* invalid, interpret as (<-2, <-2)
+ * variable number of outputs up to -N, */
+ FOUNDCFG (min (-possible_out, preferred_out));
} else {
/* exact number of outputs */
- audio_out = possible_out;
- found = true;
+ FOUNDCFG (possible_out);
}
}
if (audio_in > -possible_in && imprecise == NULL) {
/* request is too large */
} else if (possible_out == -1) {
- /* any output configuration possible, provide stereo out */
- audio_out = 2;
- found = true;
+ /* any output configuration possible */
+ FOUNDCFG (preferred_out);
} else if (possible_out == -2) {
/* invalid. interpret as (<-2, -1) */
- audio_out = 2;
- found = true;
+ FOUNDCFG (preferred_out);
} else if (possible_out < -2) {
- /* explicitly variable number of outputs, pick stereo */
- audio_out = 2;
- found = true;
+ /* variable number of outputs up to -N, */
+ FOUNDCFG (min (-possible_out, preferred_out));
} else {
/* exact number of outputs */
- audio_out = possible_out;
- found = true;
+ FOUNDCFG (possible_out);
}
}
if (possible_in && (possible_in == audio_in)) {
/* exact number of inputs ... must match obviously */
if (possible_out == -1) {
- /* any output configuration possible, provide stereo output */
- audio_out = 2;
- found = true;
+ /* any output configuration possible */
+ FOUNDCFG (preferred_out);
} else if (possible_out == -2) {
/* invalid. interpret as (>0, -1) */
- audio_out = 2;
- found = true;
+ FOUNDCFG (preferred_out);
} else if (possible_out < -2) {
- /* explicitly variable number of outputs, pick maximum */
- audio_out = -possible_out;
- found = true;
+ /* > 0, < -2 is not specified
+ * interpret as up to -N */
+ FOUNDCFG (min (-possible_out, preferred_out));
} else {
/* exact number of outputs */
- audio_out = possible_out;
- found = true;
+ FOUNDCFG (possible_out);
}
}
-
- if (found) {
- break;
- }
}
if (!found && imprecise) {
imprecise->set (DataType::AUDIO, possible_in);
if (possible_out == -1 || possible_out == -2) {
- audio_out = 2;
- found = true;
+ FOUNDCFG (2);
} else if (possible_out < -2) {
/* explicitly variable number of outputs, pick maximum */
- audio_out = -possible_out;
- found = true;
+ FOUNDCFG (min (-possible_out, preferred_out));
} else {
/* exact number of outputs */
- audio_out = possible_out;
- found = true;
- }
-
- if (found) {
- // ideally we'll keep iterating and take the "best match"
- // whatever "best" means:
- // least unconnected inputs, least silenced inputs,
- // closest match of inputs == outputs
- break;
+ FOUNDCFG (possible_out);
}
+ // ideally we'll also find the closest, best matching
+ // input configuration with minimal output penalty...
}
}
PluginInfoPtr info = _plugins.front()->get_info();
if (info->reconfigurable_io()) {
- assert (_plugins.size() == 1);
in = _plugins.front()->input_streams();
} else {
in = info->n_inputs;
break;
case Delegate:
{
- ChanCount dout;
+ ChanCount dout (in); // hint
+ if (_custom_cfg) {
+ dout = _custom_out;
+ } else if (dout.n_midi () > 0 && dout.n_audio () == 0) {
+ dout.set (DataType::AUDIO, 2);
+ }
+ if (out.n_audio () == 0) { out.set (DataType::AUDIO, 1); }
ChanCount useins;
bool const r = _plugins.front()->can_support_io_configuration (in, dout, &useins);
assert (r);
- assert (_match.strict_io || dout.n_audio() == out.n_audio()); // sans midi bypass
+ assert (dout.n_audio() <= out.n_audio()); // sans midi bypass
if (useins.n_audio() == 0) {
useins = in;
}
+ DEBUG_TRACE (DEBUG::ChanMapping, string_compose ("Delegate configuration: %1 %2 %3\n", name(), useins, dout));
+
if (_plugins.front()->configure_io (useins, dout) == false) {
PluginIoReConfigure (); /* EMIT SIGNAL */
_configured = false;
/* if a user specified a custom cfg, so be it. */
if (_custom_cfg) {
+ PluginInfoPtr info = _plugins.front()->get_info();
out = _custom_out;
- return Match (ExactMatch, get_count(), _strict_io, true); // XXX
+ if (info->reconfigurable_io()) {
+ return Match (Delegate, get_count(), _strict_io, true);
+ } else {
+ return Match (ExactMatch, get_count(), _strict_io, true);
+ }
}
/* try automatic configuration */
if (info->reconfigurable_io()) {
ChanCount useins;
- // TODO add sidechains here
+ out = inx; // hint
+ if (out.n_midi () > 0 && out.n_audio () == 0) { out.set (DataType::AUDIO, 2); }
+ if (out.n_audio () == 0) { out.set (DataType::AUDIO, 1); }
bool const r = _plugins.front()->can_support_io_configuration (inx, out, &useins);
if (!r) {
// houston, we have a problem.
ChanCount midi_bypass;
if (info->reconfigurable_io()) {
- /* Plugin has flexible I/O, so delegate to it */
+ /* Plugin has flexible I/O, so delegate to it
+ * pre-seed outputs, plugin tries closest match
+ */
+ out = in; // hint
+ if (out.n_midi () > 0 && out.n_audio () == 0) { out.set (DataType::AUDIO, 2); }
+ if (out.n_audio () == 0) { out.set (DataType::AUDIO, 1); }
bool const r = _plugins.front()->can_support_io_configuration (in, out);
if (!r) {
return Match (Impossible, 0);
projects / ardour.git / commitdiff