81 lines
1.8 KiB
C++
81 lines
1.8 KiB
C++
#include <sfc/sfc.hpp>
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namespace SuperFamicom {
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DSP dsp;
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#include "serialization.cpp"
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#include "SPC_DSP.cpp"
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auto DSP::main() -> void {
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if(!configuration.hacks.dsp.fast) {
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spc_dsp.run(1);
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clock += 2;
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} else {
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spc_dsp.run(32);
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clock += 2 * 32;
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}
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int count = spc_dsp.sample_count();
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if(count > 0) {
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if(!system.runAhead && system.renderAudio && !scheduler.StepOnce)
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for(uint n = 0; n < count; n += 2) {
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float left = samplebuffer[n + 0] / 32768.0f;
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float right = samplebuffer[n + 1] / 32768.0f;
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stream->sample(left, right);
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}
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spc_dsp.set_output(samplebuffer, 8192);
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}
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}
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auto DSP::read(uint8 address) -> uint8 {
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return spc_dsp.read(address);
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}
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auto DSP::write(uint8 address, uint8 data) -> void {
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if(configuration.hacks.dsp.echoShadow) {
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if(address == 0x6c && (data & 0x20)) {
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memset(echoram, 0x00, 65536);
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}
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}
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spc_dsp.write(address, data);
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}
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auto DSP::load() -> bool {
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return true;
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}
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auto DSP::power(bool reset) -> void {
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clock = 0;
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stream = Emulator::audio.createStream(2, system.apuFrequency() / 768.0);
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if(!reset) {
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if(!configuration.hacks.dsp.echoShadow) {
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spc_dsp.init(apuram, apuram);
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} else {
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memset(echoram, 0x00, 65536);
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spc_dsp.init(apuram, echoram);
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}
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spc_dsp.reset();
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spc_dsp.set_output(samplebuffer, 8192);
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} else {
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spc_dsp.soft_reset();
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spc_dsp.set_output(samplebuffer, 8192);
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}
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if(configuration.hacks.hotfixes) {
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//Magical Drop (Japan) does not initialize the DSP registers at startup:
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//tokoton mode will hang forever in some instances even on real hardware.
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if(cartridge.headerTitle() == "MAGICAL DROP") {
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for(uint address : range(0x80)) spc_dsp.write(address, 0xff);
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}
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}
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}
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auto DSP::mute() -> bool {
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return spc_dsp.mute();
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}
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}
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