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65 lines
1.7 KiB
65 lines
1.7 KiB
/*
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Copyright (C) 2000 Stefan Westerfeld
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stefan@space.twc.de
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include "artsflow.h"
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#include "stdsynthmodule.h"
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using namespace Arts;
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namespace Arts {
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class Synth_MULTI_ADD_impl :public Synth_MULTI_ADD_skel, public StdSynthModule
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{
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public:
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void calculateBlock(unsigned long cycles);
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AutoSuspendState autoSuspend() { return asSuspend; }
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};
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REGISTER_IMPLEMENTATION(Synth_MULTI_ADD_impl);
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}
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void Synth_MULTI_ADD_impl::calculateBlock(unsigned long cycles)
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{
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float *outend = outvalue + cycles;
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float *outp, *inp;
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if(!invalue[0])
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{
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// no invalue? zero out the outvalue
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for(outp = outvalue; outp != outend; outp++) *outp = 0.0;
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}
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else
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{
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// copy first signal
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for(outp = outvalue, inp = invalue[0]; outp != outend; outp++, inp++)
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*outp = *inp;
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// add the others
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for(int sig=1;(inp = invalue[sig]) != 0;sig++)
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{
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for(outp = outvalue; outp != outend;outp++,inp++)
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*outp += *inp;
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}
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}
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}
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