main.c

#include <hal/debug.h>
#include <hal/xbox.h>
#include <hal/video.h>
#include <windows.h>
#include "stdio.h"
#include "string.h"
#include <SDL.h>

int main(void)
{
    XVideoSetMode(640, 480, 32, REFRESH_DEFAULT);

    SDL_Init(SDL_INIT_AUDIO);

    SDL_AudioDeviceID audio_device;

    // opening an audio device:
    SDL_AudioSpec audio_spec;
    SDL_zero(audio_spec);
    audio_spec.freq = 44100;
    audio_spec.format = AUDIO_S16SYS;
    audio_spec.channels = 1;
    audio_spec.samples = 1024;
    audio_spec.callback = NULL;

    audio_device = SDL_OpenAudioDevice(
        NULL, 0, &audio_spec, NULL, 0);

    // pushing 3 seconds of samples to the audio buffer:
    float x = 0;
    for (int i = 0; i < audio_spec.freq * 3; i++) {
        x += .010f;

        // SDL_QueueAudio expects a signed 16-bit value
        // note: "5000" here is just gain so that we will hear something
        int16_t sample = sin(x * 4) * 5000;

        const int sample_size = sizeof(int16_t) * 1;
        SDL_QueueAudio(audio_device, &sample, sample_size);
        //Sleep(50000);
    }

    // unpausing the audio device (starts playing):
    SDL_PauseAudioDevice(audio_device, 0);

    for (;;) {
        SDL_Delay(1000);
        debugPrint("step\n");
        x = 0;
        for (int i = 0; i < audio_spec.freq * 3; i++) {
            x += .010f;

            // SDL_QueueAudio expects a signed 16-bit value
            // note: "5000" here is just gain so that we will hear something
            int16_t sample = sin(x * 4) * 5000;

            const int sample_size = sizeof(int16_t) * 1;
            SDL_QueueAudio(audio_device, &sample, sample_size);
        }
    }

    SDL_CloseAudioDevice(audio_device);
    SDL_Quit();

    return 0;
}