mirror of https://github.com/bsnes-emu/bsnes.git
44 lines
800 B
C++
44 lines
800 B
C++
#ifdef NALL_DSP_INTERNAL_HPP
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struct ResampleNearest : Resampler {
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inline void setFrequency();
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inline void clear();
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inline void sample();
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ResampleNearest(DSP& dsp) : Resampler(dsp) {}
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real fraction;
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real step;
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};
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void ResampleNearest::setFrequency() {
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fraction = 0.0;
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step = dsp.settings.frequency / frequency;
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}
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void ResampleNearest::clear() {
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fraction = 0.0;
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}
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void ResampleNearest::sample() {
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while(fraction <= 1.0) {
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real channel[dsp.settings.channels];
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for(unsigned n = 0; n < dsp.settings.channels; n++) {
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real a = dsp.buffer.read(n, -1);
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real b = dsp.buffer.read(n, -0);
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real mu = fraction;
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channel[n] = mu < 0.5 ? a : b;
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}
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dsp.write(channel);
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fraction += step;
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}
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dsp.buffer.rdoffset++;
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fraction -= 1.0;
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}
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#endif
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