/* Function: al_play_sample_instance
*/
bool al_play_sample_instance(ALLEGRO_SAMPLE_INSTANCE *spl)
{
ASSERT(spl);
return al_set_sample_instance_playing(spl, true);
}
/* Function: al_set_sample
*/
bool al_set_sample(ALLEGRO_SAMPLE_INSTANCE *spl, ALLEGRO_SAMPLE *data)
{
sample_parent_t old_parent;
bool need_reattach;
ASSERT(spl);
/* Stop the sample if it is playing. */
if (spl->is_playing) {
if (!al_set_sample_instance_playing(spl, false)) {
/* Shouldn't happen. */
ASSERT(false);
return false;
}
}
if (!data) {
if (spl->parent.u.ptr) {
_al_kcm_detach_from_parent(spl);
}
spl->spl_data.buffer.ptr = NULL;
return true;
}
/* Have data. */
need_reattach = false;
if (spl->parent.u.ptr != NULL) {
if (spl->spl_data.frequency != data->frequency ||
spl->spl_data.depth != data->depth ||
spl->spl_data.chan_conf != data->chan_conf) {
old_parent = spl->parent;
need_reattach = true;
_al_kcm_detach_from_parent(spl);
}
}
spl->spl_data = *data;
spl->spl_data.free_buf = false;
spl->pos = 0;
spl->loop_start = 0;
spl->loop_end = data->len;
/* Should we reset the loop mode? */
if (need_reattach) {
if (old_parent.is_voice) {
if (!al_attach_sample_instance_to_voice(spl, old_parent.u.voice)) {
spl->spl_data.buffer.ptr = NULL;
return false;
}
}
else {
if (!al_attach_sample_instance_to_mixer(spl, old_parent.u.mixer)) {
spl->spl_data.buffer.ptr = NULL;
return false;
}
}
}
return true;
}
