/* Low level sound player */
static void StartSound(SoundID sound_id, float pan, uint volume)
{
if (volume == 0) return;
const SoundEntry *sound = GetSound(sound_id);
if (sound == NULL) return;
/* Empty sound? */
if (sound->rate == 0) return;
MixerChannel *mc = MxAllocateChannel();
if (mc == NULL) return;
if (!SetBankSource(mc, sound)) return;
/* Apply the sound effect's own volume. */
volume = sound->volume * volume;
MxSetChannelVolume(mc, volume, pan);
MxActivateChannel(mc);
}
/* Low level sound player */
static void StartSound(SoundID sound_id, int panning, uint volume)
{
if (volume == 0) return;
const SoundEntry *sound = GetSound(sound_id);
if (sound == NULL) return;
MixerChannel *mc = MxAllocateChannel();
if (mc == NULL) return;
if (!SetBankSource(mc, sound)) return;
/* Apply the sound effect's own volume. */
volume = (sound->volume * volume) / 128;
panning = Clamp(panning, -PANNING_LEVELS, PANNING_LEVELS);
uint left_vol = (volume * PANNING_LEVELS) - (volume * panning);
uint right_vol = (volume * PANNING_LEVELS) + (volume * panning);
MxSetChannelVolume(mc, left_vol * 128 / PANNING_LEVELS, right_vol * 128 / PANNING_LEVELS);
MxActivateChannel(mc);
}