mirror of https://github.com/bsnes-emu/bsnes.git
27 lines
514 B
C++
27 lines
514 B
C++
auto APU::Envelope::volume() const -> uint {
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return useSpeedAsVolume ? speed : decayVolume;
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}
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auto APU::Envelope::clock() -> void {
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if(reloadDecay) {
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reloadDecay = false;
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decayVolume = 0x0f;
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decayCounter = speed + 1;
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return;
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}
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if(--decayCounter == 0) {
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decayCounter = speed + 1;
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if(decayVolume || loopMode) decayVolume--;
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}
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}
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auto APU::Envelope::power() -> void {
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speed = 0;
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useSpeedAsVolume = 0;
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loopMode = 0;
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reloadDecay = 0;
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decayCounter = 0;
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decayVolume = 0;
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}
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