int
init_sim(int argc, char*argv[])
{
// Initialise SDL, GL and AL
init_al();
sim_init();
return 0;
}
int main(int argc, char* argv[]) {
/* initialize OpenAL */
init_al();
srand(time(NULL));
/* Create buffer to store samples */
ALuint buf;
alGenBuffers(1, &buf);
al_check_error();
/* Fill buffer with Sine-Wave */
float freq = 400.f;
int seconds = 4;
unsigned sample_rate = 8000;
size_t buf_size = seconds * sample_rate;
//os vetores de frequencia e amplitude serão recebidos
//a partir da imagem de profundidade
//o tamanho de frequencias eh igual ao numero de pixels
int freq_size = 256;
float *frequencias;
frequencias = new float[freq_size];
float freq_aux;
for(int i=0; i<256; ++i) {
if (i == 0)
frequencias[i] = 100;
else
frequencias[i] = frequencias[i-1] + 15;
}
//o tamanho de amplitudes eh igual ao numero de pixels
int amp_size = 256; //igual ao de frequencias
float *amplitudes;
amplitudes = new float[amp_size];
for(int i=0; i<256; ++i) {
amplitudes[i] = float(rand()%4) / 2;
//amplitudes[i] = 1;
}
short *samples;
samples = new short[buf_size];
for(int i=0; i<buf_size; ++i) {
//samples[i] = 32760 * sin( (2.f*float(M_PI)*freq)/sample_rate * i );
samples[i] = 0;
for (int j=0; j<freq_size; ++j){
samples[i] = samples[i] + 32760 * amplitudes[j] * sin( (2.f*float(M_PI)*frequencias[j])/sample_rate * i );
}
//samples[i] = 32760 * sin( (2.f*float(M_PI)*float(rand()%300+100))/sample_rate * i );
}
/* Download buffer to OpenAL */
alBufferData(buf, AL_FORMAT_MONO16, samples, buf_size, sample_rate);
al_check_error();
/* Set-up sound source and play buffer */
ALuint src = 0;
alGenSources(1, &src);
alSourcei(src, AL_BUFFER, buf);
alSourcePlay(src);
std::cout << "dasdasdas";
/* While sound is playing, sleep */
al_check_error();
//sleep(seconds);
for(int i = 0; i< 1000000000; i++);
/* Dealloc OpenAL */
exit_al();
al_check_error();
return 0;
}
