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|
Pfx : FilterPattern {
var <>fxname, <>pairs;
*new { arg pattern, fxname ... pairs;
if (pairs.size.odd, { Error("Pfx should have even number of args.\n").throw });
^super.new(pattern).fxname_(fxname).pairs_(pairs)
}
storeArgs { ^[pattern, fxname] ++ pairs }
embedInStream { arg inevent;
var stream, cleanup = EventStreamCleanup.new;
var server = inevent[\server] ?? { Server.default };
var id = server.nextNodeID;
var event = inevent.copy;
var cleanupEvent;
pairs.pairsDo {|name, value|
event[name] = value;
};
event[\addAction] = 1; // add to tail of group.
event[\instrument] = fxname;
event[\type] = \on;
event[\id] = id;
event[\delta] = 0;
cleanupEvent = (type: \off, parent: event);
cleanup.addFunction(event, { |flag|
if (flag) { cleanupEvent.play }
});
inevent = event.yield;
stream = pattern.asStream;
loop {
event = stream.next(inevent) ?? { ^cleanup.exit(inevent) };
cleanup.update(event);
inevent = event.yield;
};
}
isolate {
^Prout { arg inevent;
var outputData, synthDesc;
synthDesc = (inevent[\synthLib] ?? { SynthDescLib.global }).at(fxname);
if(synthDesc.isNil) { Error("Pfx: SynthDesc not found: %".format(fxname)).throw };
outputData = synthDesc.outputData;
if(outputData.size > 1) { Error("Pfx does not support more than one output UGen.").throw };
if(outputData.isEmpty) {
this.embedInStream(inevent)
} {
outputData = outputData.unbubble;
if(outputData[\numChannels] > SystemSynthDefs.numChannels) {
Error("Pfx: SynthDef % has too many channels."
"Set SystemSynthDefs.numChannels >= %"
.format(fxname, outputData[\numChannels])).throw
};
Pbus(this,
inevent[\endTime] ? 2.0,
inevent[\fadeTime] ? 0.02,
outputData[\numChannels],
outputData[\rate]
).embedInStream(inevent)
}
}
}
}
Pfxb : Pfx {
*new { arg pattern, fxname ... pairs;
if (pairs.size.odd, { Error("Pfx should have even number of args.\n").throw });
^super.new(pattern, fxname, *pairs).isolate
}
}
Pgroup : FilterPattern {
embedInStream { arg inevent;
var server, groupID, event, ingroup, cleanup;
var stream, lag = 0, clock = thisThread.clock,
groupReleaseTime = inevent[\groupReleaseTime] ? 0.1, cleanupEvent;
cleanup = EventStreamCleanup.new;
server = inevent[\server] ?? { Server.default };
groupID = server.nextNodeID;
event = inevent.copy;
event[\addAction] = 1;
event[\type] = \group;
event[\delta] = 1e-9; // no other sync choice for now. (~ 1 / 20000 sample delay)
event[\id] = groupID;
cleanupEvent = (type: \kill, parent: event);
cleanup.addFunction(event, { | flag |
if (flag) { cleanupEvent.lag_(lag - clock.beats + groupReleaseTime).play }
});
inevent = event.yield;
inevent !? { inevent = inevent.copy; inevent[\group] = ingroup };
stream = pattern.asStream;
loop {
event = stream.next(inevent) ?? { ^cleanup.exit(inevent) };
lag = max(lag, clock.beats + event.use { ~sustain.value });
inevent = event.yield;
inevent.put(\group, groupID);
}
}
*embedLoop { arg inevent, stream, groupID, ingroup, cleanup;
var event, lag;
loop {
event = stream.next(inevent) ?? { ^cleanup.exit(inevent) };
lag = event[\dur];
inevent = event.yield;
inevent.put(\group, groupID);
}
}
}
Pbus : FilterPattern {
var <>numChannels, <>rate, <>dur=2.0, <>fadeTime;
*new { arg pattern, dur=2.0, fadeTime=0.02, numChannels=2, rate=\audio;
^super.new(pattern).dur_(dur).numChannels_(numChannels).rate_(rate).fadeTime_(fadeTime)
}
storeArgs { ^[ pattern, dur, fadeTime, numChannels, rate ] }
embedInStream { arg inevent;
var server, groupID, linkID, bus, ingroup, cleanup;
var patterns, event, freeBus, stream, cleanupEvent;
cleanup = EventStreamCleanup.new;
server = inevent[\server] ?? { Server.default };
groupID = server.nextNodeID;
linkID = server.nextNodeID;
ingroup = inevent[\group];
// could use a special event type for this:
if(rate == \audio) {
bus = server.audioBusAllocator.alloc(numChannels);
freeBus = { server.audioBusAllocator.free(bus) };
} {
bus = server.controlBusAllocator.alloc(numChannels);
freeBus = { server.controlBusAllocator.free(bus) };
};
event = inevent.copy;
event[\addAction] = 1;
event[\type] = \group;
event[\delta] = 1e-9;
event[\id] = groupID;
event[\group] = ingroup;
event.yield;
inevent = event = inevent.copy;
event[\type] = \on;
event[\group] = groupID;
event[\addAction] = 3;
event[\delta] = 1e-9;
event[\id] = linkID;
event[\fadeTime] = fadeTime;
event[\instrument] = format("system_link_%_%", rate, numChannels);
event[\in] = bus;
event[\msgFunc] = #{ |out, in, fadeTime, gate=1|
[\out, out, \in, in, \fadeTime, fadeTime, \gate, gate, \doneAction, 3]
};
cleanupEvent = (type: \off, parent: event, fadeTime: fadeTime.abs, hasGate: true, gate: 0);
cleanup.addFunction(event, { | flag |
if(flag) { defer ( {cleanupEvent.play}, dur) };
});
cleanup.addFunction(event, { defer({ freeBus.value;}, fadeTime.abs + dur) });
// doneAction = 3;
// remove and deallocate both this synth and the preceeding node
// (which is the group).
inevent = event.yield;
// now embed the pattern
stream = Pchain(pattern, (group: groupID, out: bus)).asStream;
loop {
event = stream.next(inevent) ?? { ^cleanup.exit(inevent) };
cleanup.update(event);
inevent = event.yield;
}
}
}
|
