static bool is_proc_filtered( const Processor* proc, const Au_expressions* ae, const char* expr_name) { rassert(proc != NULL); rassert(ae != NULL); rassert(expr_name != NULL); if (expr_name[0] == '\0') return false; const Param_proc_filter* proc_filter = Au_expressions_get_proc_filter(ae, expr_name); if (proc_filter == NULL) return false; return !Param_proc_filter_is_proc_allowed(proc_filter, proc->index); }
bool Event_channel_hit_process( Channel* ch, Device_states* dstates, const Master_params* master_params, const Event_params* params) { rassert(ch != NULL); rassert(ch->audio_rate > 0); rassert(ch->tempo > 0); rassert(dstates != NULL); rassert(master_params != NULL); rassert(params != NULL); rassert(params->arg != NULL); rassert(params->arg->type == VALUE_TYPE_INT); // Move the old Voices to the background Event_channel_note_off_process(ch, dstates, master_params, NULL); // Find our audio unit Audio_unit* au = Module_get_au_from_input(ch->parent.module, ch->au_input); if (au == NULL) return true; init_force_controls(ch, master_params); // Don't attempt to hit effects if (Audio_unit_get_type(au) != AU_TYPE_INSTRUMENT) return true; const int hit_index = (int)params->arg->value.int_type; if (!Audio_unit_get_hit_existence(au, hit_index)) return true; const Param_proc_filter* hpf = Audio_unit_get_hit_proc_filter(au, hit_index); // Generate our next note random seed here so that random generation // is consistent even if we run out of voices const uint64_t note_rand_seed = Random_get_uint64(&ch->rand); // Find reserved voices Voice_group* vgroup = VOICE_GROUP_AUTO; if (!Voice_group_reservations_get_clear_entry( ch->voice_group_res, ch->num, &ch->fg_group_id) || (Voice_pool_get_group(ch->pool, ch->fg_group_id, vgroup) == NULL)) { reset_channel_voices(ch); return true; } int voice_index = 0; for (int i = 0; i < KQT_PROCESSORS_MAX; ++i) { const Processor* proc = Audio_unit_get_proc(au, i); if (proc == NULL || !Device_is_existent((const Device*)proc) || !Processor_get_voice_signals(proc)) continue; // Skip processors that are filtered out for this hit index if ((hpf != NULL) && !Param_proc_filter_is_proc_allowed(hpf, i)) continue; const Proc_state* proc_state = (Proc_state*)Device_states_get_state( dstates, Device_get_id((const Device*)proc)); Voice_state_get_size_func* get_vstate_size = proc_state->parent.device->dimpl->get_vstate_size; if ((get_vstate_size != NULL) && (get_vstate_size() == 0)) continue; char context_str[16] = ""; snprintf(context_str, 16, "np%hd", (short)i); Random* random = Random_init(RANDOM_AUTO, context_str); Random_set_seed(random, note_rand_seed); const uint64_t voice_rand_seed = Random_get_uint64(random); Voice* voice = Voice_group_get_voice(vgroup, voice_index); const bool voice_allocated = init_voice( ch, voice, au, ch->fg_group_id, proc_state, i, voice_rand_seed); if (!voice_allocated) { // Some of our voices were reallocated reset_channel_voices(ch); return true; } ++voice_index; Voice_state* vs = voice->state; vs->hit_index = hit_index; if (vs->proc_type == Proc_type_force) { Force_controls* fc = Force_vstate_get_force_controls_mut(vs); Force_controls_copy(fc, &ch->force_controls); } } Channel_reset_test_output(ch); init_streams(ch, au); return true; }