/*
* S_Frame
*/
void S_Frame(void) {
s_channel_t *ch;
int i, j;
if (!s_env.initialized)
return;
S_FrameMusic();
if (cls.state != CL_ACTIVE) {
if (Mix_Playing(-1) > 0)
S_Stop();
return;
}
if (s_reverse->modified) { // update reverse stereo
Mix_SetReverseStereo(MIX_CHANNEL_POST, s_reverse->integer);
s_reverse->modified = false;
}
// update spatialization for current sounds
ch = s_env.channels;
for (i = 0; i < MAX_CHANNELS; i++, ch++) {
if (!ch->sample)
continue;
// reset channel's count for loop samples
ch->count = 0;
S_SpatializeChannel(ch);
}
// add new dynamic sounds
for (i = 0; i < cl.frame.num_entities; i++) {
const int e = (cl.frame.entity_state + i) & ENTITY_STATE_MASK;
const entity_state_t *ent = &cl.entity_states[e];
if (!ent->sound)
continue;
for (j = 0; j < MAX_CHANNELS; j++) {
if (s_env.channels[j].ent_num == ent->number)
break;
}
if (j == MAX_CHANNELS)
S_PlaySample(NULL, ent->number, cl.sound_precache[ent->sound],
ATTN_NORM);
}
if (cl.underwater) // add under water sample if appropriate
S_LoopSample(r_view.origin, S_LoadSample("world/under_water"));
// reset the update flag
s_env.update = false;
}
/**
* @sa CL_Frame
*/
void S_Frame (void)
{
if (snd_init && snd_init->modified) {
S_Restart_f();
snd_init->modified = false;
}
if (!s_env.initialized)
return;
M_Frame();
if (CL_OnBattlescape()) {
int i;
s_channel_t *ch;
le_t *le;
/* update right angle for stereo panning */
VectorCopy(cl.cam.axis[AXIS_RIGHT], s_env.right);
S_MumbleUpdate(cl.cam.camorg, cl.cam.axis[AXIS_FORWARD], cl.cam.axis[AXIS_RIGHT], cl.cam.axis[AXIS_UP]);
/* update spatialization for current sounds */
ch = s_env.channels;
for (i = 0; i < MAX_CHANNELS; i++, ch++) {
if (!ch->sample)
continue;
/* reset channel's count for loop samples */
ch->count = 0;
S_SpatializeChannel(ch);
}
/* ambient sounds */
le = NULL;
while ((le = LE_GetNextInUse(le))) {
if (le->type == ET_SOUND) {
s_sample_t *sample = S_GetSample(le->sampleIdx);
int j;
for (j = 0; j < MAX_CHANNELS; j++) {
if (s_env.channels[j].sample == sample)
break;
}
if (j == MAX_CHANNELS)
S_LoopSample(le->origin, sample, le->volume, le->attenuation);
}
}
}
}
