#include "sound_server.h"

#include <SDL/SDL.h>

#include <iostream>

void audio_callback(void* param, uint8_t* stream, int len) {
  sound_producer_1bit* producer = reinterpret_cast<sound_producer_1bit*>(param);
  for (int i = 0; i < len; i++) {
    *stream++ = producer->tick() ? 255 : 0;
  }
}

sound_server_1bit::sound_server_1bit(uint16_t samplerate,
                                     sound_producer_1bit& producer) {
  if (SDL_Init(SDL_INIT_AUDIO) < 0) {
    std::cerr << "Init failed" << std::endl;
    exit(1);
  }

  SDL_AudioSpec as;
  as.freq = samplerate;
  as.format = AUDIO_U8;
  as.samples = 256;
  as.callback = audio_callback;
  as.userdata = reinterpret_cast<void*>(&producer);
  as.channels = 1;

  if (SDL_OpenAudio(&as, NULL) < 0) {
    std::cerr << "Unable to open audio" << std::endl;
    exit(1);
  }

  SDL_PauseAudio(0);
}

sound_server_1bit::~sound_server_1bit() { SDL_Quit(); }