private static void APUUpdatePlayback()
{
audio_playback_blipbuffer_timer++;
if (audio_playback_sample_needed)
{
audio_playback_sample_needed = false;
if (!audio_playback_sq1_enabled)
{
sq1_pl_output = 0;
}
if (!audio_playback_sq2_enabled)
{
sq2_pl_output = 0;
}
if (!audio_playback_dmc_enabled)
{
dmc_pl_output = 0;
}
if (!audio_playback_trl_enabled)
{
trl_pl_output = 0;
}
if (!audio_playback_noz_enabled)
{
noz_pl_output = 0;
}
// Collect the sample
x = (dac_table[sq1_pl_output][sq2_pl_output][trl_pl_output][noz_pl_output][dmc_pl_output] +
(board.enable_external_sound ? board.APUGetSamples() : 0)) * audio_playback_amplitude;
// Add delta to the blip-buffer
if (x != x_1)
{
audio_playback_blipbuffer.AddDelta(audio_playback_blipbuffer_timer, (int)(x - x_1));
x_1 = x;
}
}
}
