86 lines
1.6 KiB
C++
86 lines
1.6 KiB
C++
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#ifndef LUPPP_LOOPER_H
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#define LUPPP_LOOPER_H
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#include <iostream>
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#include "buffers.hxx"
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using namespace std;
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class Looper
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{
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public:
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enum State {
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STATE_PLAYING = 0,
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STATE_RECORDING,
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};
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Looper() :
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state(STATE_PLAYING),
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endPoint (0),
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playPoint (0)
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{
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}
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void setState(State s)
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{
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// quantize?!
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state = s;
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if ( state == STATE_PLAYING ) // setup PLAY
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{
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endPoint = lastWrittenSampleIndex;
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playPoint = 0;
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cout << "State = PLAYING, endPoint = " << endPoint << endl;
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}
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else if ( state == STATE_RECORDING ) // setup REC
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{
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cout << "State = RECORDING" << endl;
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playPoint = 0;
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endPoint = 0;
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lastWrittenSampleIndex = 0;
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}
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}
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void process(int nframes, Buffers* buffers)
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{
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float* in = buffers->audio[Buffers::MASTER_INPUT];
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float* out = buffers->audio[Buffers::MASTER_OUTPUT];
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if ( state == STATE_PLAYING )
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{
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for(int i = 0; i < nframes; i++)
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{
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if ( playPoint >= endPoint )
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{
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playPoint = 0;
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}
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out[i] += sample[playPoint++];
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}
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}
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else if ( state == STATE_RECORDING )
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{
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for(int i = 0; i < nframes; i++)
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{
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if ( lastWrittenSampleIndex < 44100 * 60 )
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{
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sample[lastWrittenSampleIndex++] = in[i];
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}
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}
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}
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}
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private:
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State state;
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int endPoint, playPoint, lastWrittenSampleIndex;
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float sample[44100*60];
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};
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#endif // LUPPP_LOOPER_H
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