int32_t Voice_state_render_voice( Voice_state* vstate, Proc_state* proc_state, const Device_thread_state* proc_ts, const Au_state* au_state, const Work_buffers* wbs, int32_t buf_start, int32_t buf_stop, double tempo) { rassert(vstate != NULL); rassert(proc_state != NULL); rassert(proc_ts != NULL); rassert(au_state != NULL); rassert(wbs != NULL); rassert(buf_start >= 0); rassert(isfinite(tempo)); rassert(tempo > 0); vstate->has_release_data = false; vstate->release_stop = buf_start; const Processor* proc = (const Processor*)proc_state->parent.device; if (!Processor_get_voice_signals(proc) || (vstate->render_voice == NULL)) { vstate->active = false; return buf_start; } if (!vstate->expr_filters_applied) { // Stop processing if we are filtered out by current Audio unit expressions const Audio_unit* au = (const Audio_unit*)au_state->parent.device; const Au_expressions* ae = Audio_unit_get_expressions(au); if (ae != NULL) { if (is_proc_filtered(proc, ae, vstate->ch_expr_name) || is_proc_filtered(proc, ae, vstate->note_expr_name)) { vstate->active = false; return buf_start; } } vstate->expr_filters_applied = true; } if (buf_start >= buf_stop) return buf_start; // Call the implementation const int32_t impl_render_stop = vstate->render_voice( vstate, proc_state, proc_ts, au_state, wbs, buf_start, buf_stop, tempo); rassert(impl_render_stop <= buf_stop); return impl_render_stop; }
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; }
bool Event_channel_note_on_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_FLOAT); // 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; double pitch_param = params->arg->value.float_type; // Retune pitch parameter if a retuner is active { const int tuning_index = master_params->cur_tuning_state; if (0 <= tuning_index && tuning_index < KQT_TUNING_TABLES_MAX) { Tuning_state* state = master_params->tuning_states[tuning_index]; const Tuning_table* table = Module_get_tuning_table(master_params->parent.module, tuning_index); if (state != NULL && table != NULL) pitch_param = Tuning_state_get_retuned_pitch(state, table, pitch_param); } } if (ch->carry_pitch) { if (isnan(ch->pitch_controls.pitch)) ch->pitch_controls.pitch = pitch_param; if (isnan(ch->pitch_controls.orig_carried_pitch)) ch->pitch_controls.orig_carried_pitch = pitch_param; const double pitch_diff = pitch_param - ch->pitch_controls.orig_carried_pitch; ch->pitch_controls.pitch_add = pitch_diff; } else { Pitch_controls_reset(&ch->pitch_controls); ch->pitch_controls.orig_carried_pitch = pitch_param; Slider_set_tempo(&ch->pitch_controls.slider, master_params->tempo); Slider_set_length(&ch->pitch_controls.slider, &ch->pitch_slide_length); LFO_set_tempo(&ch->pitch_controls.vibrato, master_params->tempo); LFO_set_speed_slide(&ch->pitch_controls.vibrato, &ch->vibrato_speed_slide); LFO_set_depth_slide(&ch->pitch_controls.vibrato, &ch->vibrato_depth_slide); ch->pitch_controls.pitch = pitch_param; if (isnan(ch->pitch_controls.orig_carried_pitch)) ch->pitch_controls.orig_carried_pitch = pitch_param; } init_force_controls(ch, master_params); // Don't attempt to play effects if (Audio_unit_get_type(au) != AU_TYPE_INSTRUMENT) return true; // 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; 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; if (vs->proc_type == Proc_type_pitch) Pitch_vstate_set_controls(vs, &ch->pitch_controls); 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; }