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/*
* Copyright 2009,2010,2011,2012 Reality Jockey, Ltd.
* info@rjdj.me
* http://rjdj.me/
*
* This file is part of ZenGarden.
*
* ZenGarden is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* ZenGarden is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with ZenGarden. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "ArrayArithmetic.h"
#include "DspMultiply.h"
class PdGraph;
MessageObject *DspMultiply::newObject(PdMessage *initMessage, PdGraph *graph) {
return new DspMultiply(initMessage, graph);
}
DspMultiply::DspMultiply(PdMessage *initMessage, PdGraph *graph) : DspObject(2, 2, 0, 1, graph) {
constant = initMessage->isFloat(0) ? initMessage->getFloat(0) : 0.0f;
inputConstant = 0.0f;
processFunctionNoMessage = &processScalar;
}
DspMultiply::~DspMultiply() {
// nothing to do
}
string DspMultiply::toString() {
const char *fmt = (constant == 0.0f) ? "%s" : "%s %g";
char str[snprintf(NULL, 0, fmt, getObjectLabel(), constant)+1];
snprintf(str, sizeof(str), fmt, getObjectLabel(), constant);
return string(str);
}
void DspMultiply::onInletConnectionUpdate(unsigned int inletIndex) {
if (incomingDspConnections[0].size() > 0 && incomingDspConnections[1].size() > 0) {
processFunction = &processSignal;
} else {
// because onInletConnectionUpdate can only be called at block boundaries, it is guaranteed
// that no messages will be in the message queue.
processFunction = &processScalar;
}
}
void DspMultiply::processMessage(int inletIndex, PdMessage *message) {
switch (inletIndex) {
case 0: if (message->isFloat(0)) inputConstant = message->getFloat(0); break;
case 1: if (message->isFloat(0)) constant = message->getFloat(0); break;
default: break;
}
}
void DspMultiply::processSignal(DspObject *dspObject, int fromIndex, int toIndex) {
DspMultiply *d = reinterpret_cast<DspMultiply *>(dspObject);
ArrayArithmetic::multiply(d->dspBufferAtInlet[0] , d->dspBufferAtInlet[1],
d->dspBufferAtOutlet[0], 0, toIndex);
}
void DspMultiply::processScalar(DspObject *dspObject, int fromIndex, int toIndex) {
DspMultiply *d = reinterpret_cast<DspMultiply *>(dspObject);
ArrayArithmetic::multiply(d->dspBufferAtInlet[0] , d->constant,
d->dspBufferAtOutlet[0], fromIndex, toIndex);
}
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