bsnes/snes/fast/dsp/dsp.cpp

#include <snes.hpp>

#define DSP_CPP
namespace SNES {

DSP dsp;

#include "../snes_spc/SPC_DSP.cpp"

#include "serialization.cpp"

void DSP::step(unsigned clocks) {
  clock += clocks;
}

void DSP::synchronize_smp() {
  if(SMP::Threaded == true) {
    if(clock >= 0 && scheduler.sync != Scheduler::SynchronizeMode::All) co_switch(smp.thread);
  } else {
    while(clock >= 0) smp.enter();
  }
}

void DSP::enter() {
  spc_dsp.run(1);
  step(24);

  signed count = spc_dsp.sample_count();
  if(count > 0) {
    for(unsigned n = 0; n < count; n += 2) audio.sample(samplebuffer[n + 0], samplebuffer[n + 1]);
    spc_dsp.set_output(samplebuffer, 8192);
  }
}

uint8 DSP::read(uint8 addr) {
  return spc_dsp.read(addr);
}

void DSP::write(uint8 addr, uint8 data) {
  spc_dsp.write(addr, data);
}

void DSP::power() {
  spc_dsp.init(memory::apuram.data());
  spc_dsp.reset();
}

void DSP::reset() {
  spc_dsp.soft_reset();
  spc_dsp.set_output(samplebuffer, 8192);
}

DSP::DSP() {
}

DSP::~DSP() {
}

}