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pandemonium_engine/scene/3d/audio_stream_player_3d.cpp

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/*************************************************************************/
/* audio_stream_player_3d.cpp */
/*************************************************************************/
/* This file is part of: */
/* PANDEMONIUM ENGINE */
/* https://github.com/Relintai/pandemonium_engine */
/*************************************************************************/
/* Copyright (c) 2022-present Péter Magyar. */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "audio_stream_player_3d.h"
#include "core/config/engine.h"
#include "core/config/project_settings.h"
#include "scene/3d/area.h"
#include "scene/3d/camera.h"
#include "scene/3d/listener.h"
#include "scene/3d/spatial_velocity_tracker.h"
#include "scene/main/viewport.h"
#include "scene/resources/shapes/shape.h"
#include "scene/resources/world_3d.h"
#include "servers/audio/audio_stream.h"
#include "servers/physics_server.h"
// Based on "A Novel Multichannel Panning Method for Standard and Arbitrary Loudspeaker Configurations" by Ramy Sadek and Chris Kyriakakis (2004)
// Speaker-Placement Correction Amplitude Panning (SPCAP)
class Spcap {
private:
struct Speaker {
Vector3 direction;
real_t effective_number_of_speakers; // precalculated
mutable real_t squared_gain; // temporary
};
PoolVector<Speaker> speakers;
public:
Spcap(unsigned int speaker_count, const Vector3 *speaker_directions) {
this->speakers.resize(speaker_count);
PoolVector<Speaker>::Write w = this->speakers.write();
for (unsigned int speaker_num = 0; speaker_num < speaker_count; speaker_num++) {
w[speaker_num].direction = speaker_directions[speaker_num];
w[speaker_num].squared_gain = 0.0;
w[speaker_num].effective_number_of_speakers = 0.0;
for (unsigned int other_speaker_num = 0; other_speaker_num < speaker_count; other_speaker_num++) {
w[speaker_num].effective_number_of_speakers += 0.5 * (1.0 + w[speaker_num].direction.dot(w[other_speaker_num].direction));
}
}
}
unsigned int get_speaker_count() const {
return (unsigned int)this->speakers.size();
}
Vector3 get_speaker_direction(unsigned int index) const {
return this->speakers.read()[index].direction;
}
void calculate(const Vector3 &source_direction, real_t tightness, unsigned int volume_count, real_t *volumes) const {
PoolVector<Speaker>::Read r = this->speakers.read();
real_t sum_squared_gains = 0.0;
for (unsigned int speaker_num = 0; speaker_num < (unsigned int)this->speakers.size(); speaker_num++) {
real_t initial_gain = 0.5 * powf(1.0 + r[speaker_num].direction.dot(source_direction), tightness) / r[speaker_num].effective_number_of_speakers;
r[speaker_num].squared_gain = initial_gain * initial_gain;
sum_squared_gains += r[speaker_num].squared_gain;
}
for (unsigned int speaker_num = 0; speaker_num < MIN(volume_count, (unsigned int)this->speakers.size()); speaker_num++) {
volumes[speaker_num] = sqrtf(r[speaker_num].squared_gain / sum_squared_gains);
}
}
};
//TODO: hardcoded main speaker directions for 2, 3.1, 5.1 and 7.1 setups - these are simplified and could also be made configurable
static const Vector3 speaker_directions[7] = {
Vector3(-1.0, 0.0, -1.0).normalized(), // front-left
Vector3(1.0, 0.0, -1.0).normalized(), // front-right
Vector3(0.0, 0.0, -1.0).normalized(), // center
Vector3(-1.0, 0.0, 1.0).normalized(), // rear-left
Vector3(1.0, 0.0, 1.0).normalized(), // rear-right
Vector3(-1.0, 0.0, 0.0).normalized(), // side-left
Vector3(1.0, 0.0, 0.0).normalized(), // side-right
};
void AudioStreamPlayer3D::_calc_output_vol(const Vector3 &source_dir, real_t tightness, AudioStreamPlayer3D::Output &output) {
unsigned int speaker_count; // only main speakers (no LFE)
switch (AudioServer::get_singleton()->get_speaker_mode()) {
default: //fallthrough
case AudioServer::SPEAKER_MODE_STEREO:
speaker_count = 2;
break;
case AudioServer::SPEAKER_SURROUND_31:
speaker_count = 3;
break;
case AudioServer::SPEAKER_SURROUND_51:
speaker_count = 5;
break;
case AudioServer::SPEAKER_SURROUND_71:
speaker_count = 7;
break;
}
Spcap spcap(speaker_count, speaker_directions); //TODO: should only be created/recreated once the speaker mode / speaker positions changes
real_t volumes[7];
spcap.calculate(source_dir, tightness, speaker_count, volumes);
switch (AudioServer::get_singleton()->get_speaker_mode()) {
case AudioServer::SPEAKER_SURROUND_71:
output.vol[3].l = volumes[5]; // side-left
output.vol[3].r = volumes[6]; // side-right
//fallthrough
case AudioServer::SPEAKER_SURROUND_51:
output.vol[2].l = volumes[3]; // rear-left
output.vol[2].r = volumes[4]; // rear-right
//fallthrough
case AudioServer::SPEAKER_SURROUND_31:
output.vol[1].r = 1.0; // LFE - always full power
output.vol[1].l = volumes[2]; // center
//fallthrough
case AudioServer::SPEAKER_MODE_STEREO:
output.vol[0].r = volumes[1]; // front-right
output.vol[0].l = volumes[0]; // front-left
}
}
void AudioStreamPlayer3D::_mix_audio() {
if (!stream_playback.is_valid() || !active.is_set() ||
(stream_paused && !stream_paused_fade_out)) {
return;
}
bool started = false;
if (setseek.get() >= 0.0) {
stream_playback->start(setseek.get());
setseek.set(-1.0); //reset seek
started = true;
}
//get data
AudioFrame *buffer = mix_buffer.ptrw();
int buffer_size = mix_buffer.size();
if (stream_paused_fade_out) {
// Short fadeout ramp
buffer_size = MIN(buffer_size, 128);
}
// Mix if we're not paused or we're fading out
if ((output_count.get() > 0 || out_of_range_mode == OUT_OF_RANGE_MIX)) {
float output_pitch_scale = 0.0;
if (output_count.get()) {
//used for doppler, not realistic but good enough
for (int i = 0; i < output_count.get(); i++) {
output_pitch_scale += outputs[i].pitch_scale;
}
output_pitch_scale /= float(output_count.get());
} else {
output_pitch_scale = 1.0;
}
stream_playback->mix(buffer, pitch_scale * output_pitch_scale, buffer_size);
}
//write all outputs
for (int i = 0; i < output_count.get(); i++) {
Output current = outputs[i];
//see if current output exists, to keep volume ramp
bool found = false;
for (int j = i; j < prev_output_count; j++) {
if (prev_outputs[j].viewport == current.viewport) {
if (j != i) {
SWAP(prev_outputs[j], prev_outputs[i]);
}
found = true;
break;
}
}
bool interpolate_filter = !started;
if (!found) {
//create new if was not used before
if (prev_output_count < MAX_OUTPUTS) {
prev_outputs[prev_output_count] = prev_outputs[i]; //may be owned by another viewport
prev_output_count++;
}
prev_outputs[i] = current;
interpolate_filter = false;
}
//mix!
int buffers = AudioServer::get_singleton()->get_channel_count();
for (int k = 0; k < buffers; k++) {
AudioFrame target_volume = stream_paused_fade_out ? AudioFrame(0.f, 0.f) : current.vol[k];
AudioFrame vol_prev = stream_paused_fade_in ? AudioFrame(0.f, 0.f) : prev_outputs[i].vol[k];
AudioFrame vol_inc = (target_volume - vol_prev) / float(buffer_size);
AudioFrame vol = vol_prev;
if (!AudioServer::get_singleton()->thread_has_channel_mix_buffer(current.bus_index, k)) {
continue; //may have been deleted, will be updated on process
}
AudioFrame *target = AudioServer::get_singleton()->thread_get_channel_mix_buffer(current.bus_index, k);
current.filter.set_mode(AudioFilterSW::HIGHSHELF);
current.filter.set_sampling_rate(AudioServer::get_singleton()->get_mix_rate());
current.filter.set_cutoff(attenuation_filter_cutoff_hz);
current.filter.set_resonance(1);
current.filter.set_stages(1);
current.filter.set_gain(current.filter_gain);
if (interpolate_filter) {
current.filter_process[k * 2 + 0] = prev_outputs[i].filter_process[k * 2 + 0];
current.filter_process[k * 2 + 1] = prev_outputs[i].filter_process[k * 2 + 1];
current.filter_process[k * 2 + 0].set_filter(&current.filter, false);
current.filter_process[k * 2 + 1].set_filter(&current.filter, false);
current.filter_process[k * 2 + 0].update_coeffs(buffer_size);
current.filter_process[k * 2 + 1].update_coeffs(buffer_size);
for (int j = 0; j < buffer_size; j++) {
AudioFrame f = buffer[j] * vol;
current.filter_process[k * 2 + 0].process_one_interp(f.l);
current.filter_process[k * 2 + 1].process_one_interp(f.r);
target[j] += f;
vol += vol_inc;
}
} else {
current.filter_process[k * 2 + 0].set_filter(&current.filter);
current.filter_process[k * 2 + 1].set_filter(&current.filter);
current.filter_process[k * 2 + 0].update_coeffs();
current.filter_process[k * 2 + 1].update_coeffs();
for (int j = 0; j < buffer_size; j++) {
AudioFrame f = buffer[j] * vol;
current.filter_process[k * 2 + 0].process_one(f.l);
current.filter_process[k * 2 + 1].process_one(f.r);
target[j] += f;
vol += vol_inc;
}
}
if (current.reverb_bus_index >= 0) {
if (!AudioServer::get_singleton()->thread_has_channel_mix_buffer(current.reverb_bus_index, k)) {
continue; //may have been deleted, will be updated on process
}
AudioFrame *rtarget = AudioServer::get_singleton()->thread_get_channel_mix_buffer(current.reverb_bus_index, k);
if (current.reverb_bus_index == prev_outputs[i].reverb_bus_index) {
AudioFrame rvol_inc = (current.reverb_vol[k] - prev_outputs[i].reverb_vol[k]) / float(buffer_size);
AudioFrame rvol = prev_outputs[i].reverb_vol[k];
for (int j = 0; j < buffer_size; j++) {
rtarget[j] += buffer[j] * rvol;
rvol += rvol_inc;
}
} else {
AudioFrame rvol = current.reverb_vol[k];
for (int j = 0; j < buffer_size; j++) {
rtarget[j] += buffer[j] * rvol;
}
}
}
}
prev_outputs[i] = current;
}
prev_output_count = output_count.get();
//stream is no longer active, disable this.
if (!stream_playback->is_playing()) {
active.clear();
}
output_ready.clear();
stream_paused_fade_in = false;
stream_paused_fade_out = false;
}
float AudioStreamPlayer3D::_get_attenuation_db(float p_distance) const {
float att = 0;
switch (attenuation_model) {
case ATTENUATION_INVERSE_DISTANCE: {
att = Math::linear2db(1.0 / ((p_distance / unit_size) + CMP_EPSILON));
} break;
case ATTENUATION_INVERSE_SQUARE_DISTANCE: {
float d = (p_distance / unit_size);
d *= d;
att = Math::linear2db(1.0 / (d + CMP_EPSILON));
} break;
case ATTENUATION_LOGARITHMIC: {
att = -20 * Math::log(p_distance / unit_size + CMP_EPSILON);
} break;
case ATTENUATION_DISABLED:
break;
default: {
ERR_PRINT("Unknown attenuation type");
break;
}
}
att += unit_db;
if (att > max_db) {
att = max_db;
}
return att;
}
void _update_sound() {
}
void AudioStreamPlayer3D::_notification(int p_what) {
if (p_what == NOTIFICATION_ENTER_TREE) {
velocity_tracker->reset(get_global_transform().origin);
AudioServer::get_singleton()->add_callback(_mix_audios, this);
if (autoplay && !Engine::get_singleton()->is_editor_hint()) {
play();
}
}
if (p_what == NOTIFICATION_EXIT_TREE) {
AudioServer::get_singleton()->remove_callback(_mix_audios, this);
}
if (p_what == NOTIFICATION_PAUSED) {
if (!can_process()) {
// Node can't process so we start fading out to silence
set_stream_paused(true);
}
}
if (p_what == NOTIFICATION_UNPAUSED) {
set_stream_paused(false);
}
if (p_what == NOTIFICATION_TRANSFORM_CHANGED) {
if (doppler_tracking != DOPPLER_TRACKING_DISABLED) {
velocity_tracker->update_position(get_global_transform().origin);
}
}
if (p_what == NOTIFICATION_INTERNAL_PHYSICS_PROCESS) {
//update anything related to position first, if possible of course
if (!output_ready.is_set()) {
Vector3 linear_velocity;
//compute linear velocity for doppler
if (doppler_tracking != DOPPLER_TRACKING_DISABLED) {
linear_velocity = velocity_tracker->get_tracked_linear_velocity();
}
Ref<World3D> world = get_world_3d();
ERR_FAIL_COND(world.is_null());
int new_output_count = 0;
Vector3 global_pos = get_global_transform().origin;
int bus_index = AudioServer::get_singleton()->thread_find_bus_index(bus);
//check if any area is diverting sound into a bus
PhysicsDirectSpaceState *space_state = PhysicsServer::get_singleton()->space_get_direct_state(world->get_space());
PhysicsDirectSpaceState::ShapeResult sr[MAX_INTERSECT_AREAS];
int areas = space_state->intersect_point(global_pos, sr, MAX_INTERSECT_AREAS, RBSet<RID>(), area_mask, false, true);
Area *area = nullptr;
for (int i = 0; i < areas; i++) {
if (!sr[i].collider) {
continue;
}
Area *tarea = Object::cast_to<Area>(sr[i].collider);
if (!tarea) {
continue;
}
if (!tarea->is_overriding_audio_bus() && !tarea->is_using_reverb_bus()) {
continue;
}
area = tarea;
break;
}
List<Camera *> cameras;
world->get_camera_list(&cameras);
for (List<Camera *>::Element *E = cameras.front(); E; E = E->next()) {
Camera *camera = E->get();
Viewport *vp = camera->get_viewport();
if (!vp->is_audio_listener()) {
continue;
}
bool listener_is_camera = true;
Spatial *listener_node = camera;
Listener *listener = vp->get_listener();
if (listener) {
listener_node = listener;
listener_is_camera = false;
}
Vector3 local_pos = listener_node->get_global_transform().orthonormalized().affine_inverse().xform(global_pos);
float dist = local_pos.length();
Vector3 area_sound_pos;
Vector3 listener_area_pos;
if (area && area->is_using_reverb_bus() && area->get_reverb_uniformity() > 0) {
area_sound_pos = space_state->get_closest_point_to_object_volume(area->get_rid(), listener_node->get_global_transform().origin);
listener_area_pos = listener_node->get_global_transform().affine_inverse().xform(area_sound_pos);
}
if (max_distance > 0) {
float total_max = max_distance;
if (area && area->is_using_reverb_bus() && area->get_reverb_uniformity() > 0) {
total_max = MAX(total_max, listener_area_pos.length());
}
if (total_max > max_distance) {
continue; //can't hear this sound in this listener
}
}
float multiplier = Math::db2linear(_get_attenuation_db(dist));
if (max_distance > 0) {
multiplier *= MAX(0, 1.0 - (dist / max_distance));
}
Output output;
output.bus_index = bus_index;
output.reverb_bus_index = -1; //no reverb by default
output.viewport = vp;
float db_att = (1.0 - MIN(1.0, multiplier)) * attenuation_filter_db;
if (emission_angle_enabled) {
Vector3 listenertopos = global_pos - listener_node->get_global_transform().origin;
float c = listenertopos.normalized().dot(get_global_transform().basis.get_axis(2).normalized()); //it's z negative
float angle = Math::rad2deg(Math::acos(c));
if (angle > emission_angle) {
db_att -= -emission_angle_filter_attenuation_db;
}
}
output.filter_gain = Math::db2linear(db_att);
// Bake in a constant factor here to allow the project setting defaults for 2d and 3d to be normalized to 1.0.
float tightness = cached_global_panning_strength * 2.0f;
tightness *= panning_strength;
_calc_output_vol(local_pos.normalized(), tightness, output);
unsigned int cc = AudioServer::get_singleton()->get_channel_count();
for (unsigned int k = 0; k < cc; k++) {
output.vol[k] *= multiplier;
}
bool filled_reverb = false;
int vol_index_max = AudioServer::get_singleton()->get_speaker_mode() + 1;
if (area) {
if (area->is_overriding_audio_bus()) {
//override audio bus
StringName bus_name = area->get_audio_bus();
output.bus_index = AudioServer::get_singleton()->thread_find_bus_index(bus_name);
}
if (area->is_using_reverb_bus()) {
filled_reverb = true;
StringName bus_name = area->get_reverb_bus();
output.reverb_bus_index = AudioServer::get_singleton()->thread_find_bus_index(bus_name);
float uniformity = area->get_reverb_uniformity();
float area_send = area->get_reverb_amount();
if (uniformity > 0.0) {
float distance = listener_area_pos.length();
float attenuation = Math::db2linear(_get_attenuation_db(distance));
//float dist_att_db = -20 * Math::log(dist + 0.00001); //logarithmic attenuation, like in real life
float center_val[3] = { 0.5f, 0.25f, 0.16666f };
AudioFrame center_frame(center_val[vol_index_max - 1], center_val[vol_index_max - 1]);
if (attenuation < 1.0) {
//pan the uniform sound
Vector3 rev_pos = listener_area_pos;
rev_pos.y = 0;
rev_pos.normalize();
if (cc >= 1) {
// Stereo pair
float c = rev_pos.x * 0.5 + 0.5;
output.reverb_vol[0].l = 1.0 - c;
output.reverb_vol[0].r = c;
}
if (cc >= 3) {
// Center pair + Side pair
float xl = Vector3(-1, 0, -1).normalized().dot(rev_pos) * 0.5 + 0.5;
float xr = Vector3(1, 0, -1).normalized().dot(rev_pos) * 0.5 + 0.5;
output.reverb_vol[1].l = xl;
output.reverb_vol[1].r = xr;
output.reverb_vol[2].l = 1.0 - xr;
output.reverb_vol[2].r = 1.0 - xl;
}
if (cc >= 4) {
// Rear pair
// FIXME: Not sure what math should be done here
float c = rev_pos.x * 0.5 + 0.5;
output.reverb_vol[3].l = 1.0 - c;
output.reverb_vol[3].r = c;
}
for (int i = 0; i < vol_index_max; i++) {
output.reverb_vol[i] = output.reverb_vol[i].linear_interpolate(center_frame, attenuation);
}
} else {
for (int i = 0; i < vol_index_max; i++) {
output.reverb_vol[i] = center_frame;
}
}
for (int i = 0; i < vol_index_max; i++) {
output.reverb_vol[i] = output.vol[i].linear_interpolate(output.reverb_vol[i] * attenuation, uniformity);
output.reverb_vol[i] *= area_send;
}
} else {
for (int i = 0; i < vol_index_max; i++) {
output.reverb_vol[i] = output.vol[i] * area_send;
}
}
}
}
if (doppler_tracking != DOPPLER_TRACKING_DISABLED) {
Vector3 listener_velocity;
if (listener_is_camera) {
listener_velocity = camera->get_doppler_tracked_velocity();
}
Vector3 local_velocity = listener_node->get_global_transform().orthonormalized().basis.xform_inv(linear_velocity - listener_velocity);
if (local_velocity == Vector3()) {
output.pitch_scale = 1.0;
} else {
float approaching = local_pos.normalized().dot(local_velocity.normalized());
float velocity = local_velocity.length();
float speed_of_sound = 343.0;
output.pitch_scale = speed_of_sound / (speed_of_sound + velocity * approaching);
output.pitch_scale = CLAMP(output.pitch_scale, (1 / 8.0), 8.0); //avoid crazy stuff
}
} else {
output.pitch_scale = 1.0;
}
if (!filled_reverb) {
for (int i = 0; i < vol_index_max; i++) {
output.reverb_vol[i] = AudioFrame(0, 0);
}
}
outputs[new_output_count] = output;
new_output_count++;
if (new_output_count == MAX_OUTPUTS) {
break;
}
}
output_count.set(new_output_count);
output_ready.set();
}
//start playing if requested
if (setplay.get() >= 0.0) {
setseek.set(setplay.get());
active.set();
setplay.set(-1);
//do not update, this makes it easier to animate (will shut off otherwise)
///_change_notify("playing"); //update property in editor
}
//stop playing if no longer active
if (!active.is_set()) {
set_physics_process_internal(false);
//do not update, this makes it easier to animate (will shut off otherwise)
//_change_notify("playing"); //update property in editor
emit_signal("finished");
}
}
}
void AudioStreamPlayer3D::set_stream(Ref<AudioStream> p_stream) {
// Instancing audio streams can cause large memory allocations, do it prior to AudioServer::lock.
Ref<AudioStreamPlayback> pre_instanced_playback;
if (p_stream.is_valid()) {
pre_instanced_playback = p_stream->instance_playback();
}
AudioServer::get_singleton()->lock();
mix_buffer.resize(AudioServer::get_singleton()->thread_get_mix_buffer_size());
if (stream_playback.is_valid()) {
stream_playback.unref();
stream.unref();
active.clear();
setseek.set(-1);
}
if (p_stream.is_valid()) {
stream = p_stream;
stream_playback = pre_instanced_playback;
}
AudioServer::get_singleton()->unlock();
if (p_stream.is_valid() && stream_playback.is_null()) {
stream.unref();
}
}
Ref<AudioStream> AudioStreamPlayer3D::get_stream() const {
return stream;
}
void AudioStreamPlayer3D::set_unit_db(float p_volume) {
unit_db = p_volume;
}
float AudioStreamPlayer3D::get_unit_db() const {
return unit_db;
}
void AudioStreamPlayer3D::set_unit_size(float p_volume) {
unit_size = p_volume;
}
float AudioStreamPlayer3D::get_unit_size() const {
return unit_size;
}
void AudioStreamPlayer3D::set_max_db(float p_boost) {
max_db = p_boost;
}
float AudioStreamPlayer3D::get_max_db() const {
return max_db;
}
void AudioStreamPlayer3D::set_pitch_scale(float p_pitch_scale) {
ERR_FAIL_COND(!(p_pitch_scale > 0.0));
pitch_scale = p_pitch_scale;
}
float AudioStreamPlayer3D::get_pitch_scale() const {
return pitch_scale;
}
void AudioStreamPlayer3D::play(float p_from_pos) {
if (!is_playing()) {
// Reset the prev_output_count if the stream is stopped
prev_output_count = 0;
}
if (stream_playback.is_valid()) {
setplay.set(p_from_pos);
output_ready.clear();
set_physics_process_internal(true);
}
}
void AudioStreamPlayer3D::seek(float p_seconds) {
if (stream_playback.is_valid()) {
setseek.set(p_seconds);
}
}
void AudioStreamPlayer3D::stop() {
if (stream_playback.is_valid()) {
active.clear();
set_physics_process_internal(false);
setplay.set(-1);
}
}
bool AudioStreamPlayer3D::is_playing() const {
if (stream_playback.is_valid()) {
return active.is_set() || setplay.get() >= 0;
}
return false;
}
float AudioStreamPlayer3D::get_playback_position() {
if (stream_playback.is_valid()) {
float ss = setseek.get();
if (ss >= 0.0) {
return ss;
}
return stream_playback->get_playback_position();
}
return 0;
}
void AudioStreamPlayer3D::set_bus(const StringName &p_bus) {
//if audio is active, must lock this
AudioServer::get_singleton()->lock();
bus = p_bus;
AudioServer::get_singleton()->unlock();
}
StringName AudioStreamPlayer3D::get_bus() const {
for (int i = 0; i < AudioServer::get_singleton()->get_bus_count(); i++) {
if (AudioServer::get_singleton()->get_bus_name(i) == bus) {
return bus;
}
}
return "Master";
}
void AudioStreamPlayer3D::set_autoplay(bool p_enable) {
autoplay = p_enable;
}
bool AudioStreamPlayer3D::is_autoplay_enabled() {
return autoplay;
}
void AudioStreamPlayer3D::_set_playing(bool p_enable) {
if (p_enable) {
play();
} else {
stop();
}
}
bool AudioStreamPlayer3D::_is_active() const {
return active.is_set();
}
void AudioStreamPlayer3D::_validate_property(PropertyInfo &property) const {
if (property.name == "bus") {
String options;
for (int i = 0; i < AudioServer::get_singleton()->get_bus_count(); i++) {
if (i > 0) {
options += ",";
}
String name = AudioServer::get_singleton()->get_bus_name(i);
options += name;
}
property.hint_string = options;
}
}
void AudioStreamPlayer3D::_bus_layout_changed() {
_change_notify();
}
void AudioStreamPlayer3D::set_max_distance(float p_metres) {
ERR_FAIL_COND(p_metres < 0.0);
max_distance = p_metres;
}
float AudioStreamPlayer3D::get_max_distance() const {
return max_distance;
}
void AudioStreamPlayer3D::set_area_mask(uint32_t p_mask) {
area_mask = p_mask;
}
uint32_t AudioStreamPlayer3D::get_area_mask() const {
return area_mask;
}
void AudioStreamPlayer3D::set_emission_angle_enabled(bool p_enable) {
emission_angle_enabled = p_enable;
update_gizmos();
}
bool AudioStreamPlayer3D::is_emission_angle_enabled() const {
return emission_angle_enabled;
}
void AudioStreamPlayer3D::set_emission_angle(float p_angle) {
ERR_FAIL_COND(p_angle < 0 || p_angle > 90);
emission_angle = p_angle;
update_gizmos();
_change_notify("emission_angle");
}
float AudioStreamPlayer3D::get_emission_angle() const {
return emission_angle;
}
void AudioStreamPlayer3D::set_emission_angle_filter_attenuation_db(float p_angle_attenuation_db) {
emission_angle_filter_attenuation_db = p_angle_attenuation_db;
}
float AudioStreamPlayer3D::get_emission_angle_filter_attenuation_db() const {
return emission_angle_filter_attenuation_db;
}
void AudioStreamPlayer3D::set_attenuation_filter_cutoff_hz(float p_hz) {
attenuation_filter_cutoff_hz = p_hz;
}
float AudioStreamPlayer3D::get_attenuation_filter_cutoff_hz() const {
return attenuation_filter_cutoff_hz;
}
void AudioStreamPlayer3D::set_attenuation_filter_db(float p_db) {
attenuation_filter_db = p_db;
}
float AudioStreamPlayer3D::get_attenuation_filter_db() const {
return attenuation_filter_db;
}
void AudioStreamPlayer3D::set_attenuation_model(AttenuationModel p_model) {
ERR_FAIL_INDEX((int)p_model, 4);
attenuation_model = p_model;
}
AudioStreamPlayer3D::AttenuationModel AudioStreamPlayer3D::get_attenuation_model() const {
return attenuation_model;
}
void AudioStreamPlayer3D::set_out_of_range_mode(OutOfRangeMode p_mode) {
ERR_FAIL_INDEX((int)p_mode, 2);
out_of_range_mode = p_mode;
}
AudioStreamPlayer3D::OutOfRangeMode AudioStreamPlayer3D::get_out_of_range_mode() const {
return out_of_range_mode;
}
void AudioStreamPlayer3D::set_doppler_tracking(DopplerTracking p_tracking) {
if (doppler_tracking == p_tracking) {
return;
}
doppler_tracking = p_tracking;
if (doppler_tracking != DOPPLER_TRACKING_DISABLED) {
set_notify_transform(true);
velocity_tracker->set_track_physics_step(doppler_tracking == DOPPLER_TRACKING_PHYSICS_STEP);
if (is_inside_tree()) {
velocity_tracker->reset(get_global_transform().origin);
}
} else {
set_notify_transform(false);
}
}
AudioStreamPlayer3D::DopplerTracking AudioStreamPlayer3D::get_doppler_tracking() const {
return doppler_tracking;
}
void AudioStreamPlayer3D::set_stream_paused(bool p_pause) {
if (p_pause != stream_paused) {
stream_paused = p_pause;
stream_paused_fade_in = !stream_paused;
stream_paused_fade_out = stream_paused;
}
}
bool AudioStreamPlayer3D::get_stream_paused() const {
return stream_paused;
}
Ref<AudioStreamPlayback> AudioStreamPlayer3D::get_stream_playback() {
return stream_playback;
}
void AudioStreamPlayer3D::set_panning_strength(float p_panning_strength) {
ERR_FAIL_COND_MSG(p_panning_strength < 0, "Panning strength must be a positive number.");
panning_strength = p_panning_strength;
}
float AudioStreamPlayer3D::get_panning_strength() const {
return panning_strength;
}
void AudioStreamPlayer3D::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_stream", "stream"), &AudioStreamPlayer3D::set_stream);
ClassDB::bind_method(D_METHOD("get_stream"), &AudioStreamPlayer3D::get_stream);
ClassDB::bind_method(D_METHOD("set_unit_db", "unit_db"), &AudioStreamPlayer3D::set_unit_db);
ClassDB::bind_method(D_METHOD("get_unit_db"), &AudioStreamPlayer3D::get_unit_db);
ClassDB::bind_method(D_METHOD("set_unit_size", "unit_size"), &AudioStreamPlayer3D::set_unit_size);
ClassDB::bind_method(D_METHOD("get_unit_size"), &AudioStreamPlayer3D::get_unit_size);
ClassDB::bind_method(D_METHOD("set_max_db", "max_db"), &AudioStreamPlayer3D::set_max_db);
ClassDB::bind_method(D_METHOD("get_max_db"), &AudioStreamPlayer3D::get_max_db);
ClassDB::bind_method(D_METHOD("set_pitch_scale", "pitch_scale"), &AudioStreamPlayer3D::set_pitch_scale);
ClassDB::bind_method(D_METHOD("get_pitch_scale"), &AudioStreamPlayer3D::get_pitch_scale);
ClassDB::bind_method(D_METHOD("play", "from_position"), &AudioStreamPlayer3D::play, DEFVAL(0.0));
ClassDB::bind_method(D_METHOD("seek", "to_position"), &AudioStreamPlayer3D::seek);
ClassDB::bind_method(D_METHOD("stop"), &AudioStreamPlayer3D::stop);
ClassDB::bind_method(D_METHOD("is_playing"), &AudioStreamPlayer3D::is_playing);
ClassDB::bind_method(D_METHOD("get_playback_position"), &AudioStreamPlayer3D::get_playback_position);
ClassDB::bind_method(D_METHOD("set_bus", "bus"), &AudioStreamPlayer3D::set_bus);
ClassDB::bind_method(D_METHOD("get_bus"), &AudioStreamPlayer3D::get_bus);
ClassDB::bind_method(D_METHOD("set_autoplay", "enable"), &AudioStreamPlayer3D::set_autoplay);
ClassDB::bind_method(D_METHOD("is_autoplay_enabled"), &AudioStreamPlayer3D::is_autoplay_enabled);
ClassDB::bind_method(D_METHOD("_set_playing", "enable"), &AudioStreamPlayer3D::_set_playing);
ClassDB::bind_method(D_METHOD("_is_active"), &AudioStreamPlayer3D::_is_active);
ClassDB::bind_method(D_METHOD("set_max_distance", "metres"), &AudioStreamPlayer3D::set_max_distance);
ClassDB::bind_method(D_METHOD("get_max_distance"), &AudioStreamPlayer3D::get_max_distance);
ClassDB::bind_method(D_METHOD("set_area_mask", "mask"), &AudioStreamPlayer3D::set_area_mask);
ClassDB::bind_method(D_METHOD("get_area_mask"), &AudioStreamPlayer3D::get_area_mask);
ClassDB::bind_method(D_METHOD("set_emission_angle", "degrees"), &AudioStreamPlayer3D::set_emission_angle);
ClassDB::bind_method(D_METHOD("get_emission_angle"), &AudioStreamPlayer3D::get_emission_angle);
ClassDB::bind_method(D_METHOD("set_emission_angle_enabled", "enabled"), &AudioStreamPlayer3D::set_emission_angle_enabled);
ClassDB::bind_method(D_METHOD("is_emission_angle_enabled"), &AudioStreamPlayer3D::is_emission_angle_enabled);
ClassDB::bind_method(D_METHOD("set_emission_angle_filter_attenuation_db", "db"), &AudioStreamPlayer3D::set_emission_angle_filter_attenuation_db);
ClassDB::bind_method(D_METHOD("get_emission_angle_filter_attenuation_db"), &AudioStreamPlayer3D::get_emission_angle_filter_attenuation_db);
ClassDB::bind_method(D_METHOD("set_attenuation_filter_cutoff_hz", "degrees"), &AudioStreamPlayer3D::set_attenuation_filter_cutoff_hz);
ClassDB::bind_method(D_METHOD("get_attenuation_filter_cutoff_hz"), &AudioStreamPlayer3D::get_attenuation_filter_cutoff_hz);
ClassDB::bind_method(D_METHOD("set_attenuation_filter_db", "db"), &AudioStreamPlayer3D::set_attenuation_filter_db);
ClassDB::bind_method(D_METHOD("get_attenuation_filter_db"), &AudioStreamPlayer3D::get_attenuation_filter_db);
ClassDB::bind_method(D_METHOD("set_attenuation_model", "model"), &AudioStreamPlayer3D::set_attenuation_model);
ClassDB::bind_method(D_METHOD("get_attenuation_model"), &AudioStreamPlayer3D::get_attenuation_model);
ClassDB::bind_method(D_METHOD("set_out_of_range_mode", "mode"), &AudioStreamPlayer3D::set_out_of_range_mode);
ClassDB::bind_method(D_METHOD("get_out_of_range_mode"), &AudioStreamPlayer3D::get_out_of_range_mode);
ClassDB::bind_method(D_METHOD("set_doppler_tracking", "mode"), &AudioStreamPlayer3D::set_doppler_tracking);
ClassDB::bind_method(D_METHOD("get_doppler_tracking"), &AudioStreamPlayer3D::get_doppler_tracking);
ClassDB::bind_method(D_METHOD("set_stream_paused", "pause"), &AudioStreamPlayer3D::set_stream_paused);
ClassDB::bind_method(D_METHOD("get_stream_paused"), &AudioStreamPlayer3D::get_stream_paused);
ClassDB::bind_method(D_METHOD("set_panning_strength", "panning_strength"), &AudioStreamPlayer3D::set_panning_strength);
ClassDB::bind_method(D_METHOD("get_panning_strength"), &AudioStreamPlayer3D::get_panning_strength);
ClassDB::bind_method(D_METHOD("get_stream_playback"), &AudioStreamPlayer3D::get_stream_playback);
ClassDB::bind_method(D_METHOD("_bus_layout_changed"), &AudioStreamPlayer3D::_bus_layout_changed);
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "stream", PROPERTY_HINT_RESOURCE_TYPE, "AudioStream"), "set_stream", "get_stream");
ADD_PROPERTY(PropertyInfo(Variant::INT, "attenuation_model", PROPERTY_HINT_ENUM, "Inverse,InverseSquare,Logarithmic,Disabled"), "set_attenuation_model", "get_attenuation_model");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "unit_db", PROPERTY_HINT_RANGE, "-80,80"), "set_unit_db", "get_unit_db");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "unit_size", PROPERTY_HINT_RANGE, "0.1,100,0.1"), "set_unit_size", "get_unit_size");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "max_db", PROPERTY_HINT_RANGE, "-24,6"), "set_max_db", "get_max_db");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "pitch_scale", PROPERTY_HINT_RANGE, "0.01,4,0.01,or_greater"), "set_pitch_scale", "get_pitch_scale");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "playing", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_EDITOR), "_set_playing", "is_playing");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "autoplay"), "set_autoplay", "is_autoplay_enabled");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "stream_paused", PROPERTY_HINT_NONE, ""), "set_stream_paused", "get_stream_paused");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "max_distance", PROPERTY_HINT_RANGE, "0,4096,0.01,or_greater"), "set_max_distance", "get_max_distance");
ADD_PROPERTY(PropertyInfo(Variant::INT, "out_of_range_mode", PROPERTY_HINT_ENUM, "Mix,Pause"), "set_out_of_range_mode", "get_out_of_range_mode");
ADD_PROPERTY(PropertyInfo(Variant::STRING_NAME, "bus", PROPERTY_HINT_ENUM, ""), "set_bus", "get_bus");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "panning_strength", PROPERTY_HINT_RANGE, "0,3,0.01,or_greater"), "set_panning_strength", "get_panning_strength");
ADD_PROPERTY(PropertyInfo(Variant::INT, "area_mask", PROPERTY_HINT_LAYERS_2D_PHYSICS), "set_area_mask", "get_area_mask");
ADD_GROUP("Emission Angle", "emission_angle");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "emission_angle_enabled"), "set_emission_angle_enabled", "is_emission_angle_enabled");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "emission_angle_degrees", PROPERTY_HINT_RANGE, "0.1,90,0.1"), "set_emission_angle", "get_emission_angle");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "emission_angle_filter_attenuation_db", PROPERTY_HINT_RANGE, "-80,0,0.1"), "set_emission_angle_filter_attenuation_db", "get_emission_angle_filter_attenuation_db");
ADD_GROUP("Attenuation Filter", "attenuation_filter_");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "attenuation_filter_cutoff_hz", PROPERTY_HINT_RANGE, "1,20500,1"), "set_attenuation_filter_cutoff_hz", "get_attenuation_filter_cutoff_hz");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "attenuation_filter_db", PROPERTY_HINT_RANGE, "-80,0,0.1"), "set_attenuation_filter_db", "get_attenuation_filter_db");
ADD_GROUP("Doppler", "doppler_");
ADD_PROPERTY(PropertyInfo(Variant::INT, "doppler_tracking", PROPERTY_HINT_ENUM, "Disabled,Idle,Physics"), "set_doppler_tracking", "get_doppler_tracking");
BIND_ENUM_CONSTANT(ATTENUATION_INVERSE_DISTANCE);
BIND_ENUM_CONSTANT(ATTENUATION_INVERSE_SQUARE_DISTANCE);
BIND_ENUM_CONSTANT(ATTENUATION_LOGARITHMIC);
BIND_ENUM_CONSTANT(ATTENUATION_DISABLED);
BIND_ENUM_CONSTANT(OUT_OF_RANGE_MIX);
BIND_ENUM_CONSTANT(OUT_OF_RANGE_PAUSE);
BIND_ENUM_CONSTANT(DOPPLER_TRACKING_DISABLED);
BIND_ENUM_CONSTANT(DOPPLER_TRACKING_IDLE_STEP);
BIND_ENUM_CONSTANT(DOPPLER_TRACKING_PHYSICS_STEP);
ADD_SIGNAL(MethodInfo("finished"));
}
AudioStreamPlayer3D::AudioStreamPlayer3D() {
unit_db = 0;
unit_size = 1;
attenuation_model = ATTENUATION_INVERSE_DISTANCE;
max_db = 3;
pitch_scale = 1.0;
autoplay = false;
setseek.set(-1);
prev_output_count = 0;
max_distance = 0;
setplay.set(-1);
area_mask = 1;
emission_angle = 45;
emission_angle_enabled = false;
emission_angle_filter_attenuation_db = -12;
attenuation_filter_cutoff_hz = 5000;
attenuation_filter_db = -24;
out_of_range_mode = OUT_OF_RANGE_MIX;
doppler_tracking = DOPPLER_TRACKING_DISABLED;
stream_paused = false;
stream_paused_fade_in = false;
stream_paused_fade_out = false;
velocity_tracker.instance();
AudioServer::get_singleton()->connect("bus_layout_changed", this, "_bus_layout_changed");
set_disable_scale(true);
cached_global_panning_strength = ProjectSettings::get_singleton()->get("audio/3d_panning_strength");
}
AudioStreamPlayer3D::~AudioStreamPlayer3D() {
}
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