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34 lines
466 B
C++
34 lines
466 B
C++
/*
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Bip buffer
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Copyright 2020 Ahmet Inan <inan@aicodix.de>
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*/
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#pragma once
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namespace DSP {
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template <typename TYPE, int NUM>
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class BipBuffer
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{
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TYPE buf[2*NUM];
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int pos0, pos1;
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public:
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BipBuffer() : pos0(0), pos1(NUM)
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{
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for (int i = 0; i < 2*NUM; ++i)
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buf[i] = 0;
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}
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const TYPE *operator () (TYPE input)
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{
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buf[pos0] = buf[pos1] = input;
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if (++pos0 >= 2*NUM)
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pos0 = 0;
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if (++pos1 >= 2*NUM)
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pos1 = 0;
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return buf + min(pos0, pos1);
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}
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};
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}
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