413 lines
16 KiB
C++
413 lines
16 KiB
C++
/**************************************************************************/
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/* audio_stream_player_2d.cpp */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#include "audio_stream_player_2d.h"
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#include "audio_stream_player_2d.compat.inc"
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#include "core/config/project_settings.h"
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#include "scene/2d/area_2d.h"
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#include "scene/2d/audio_listener_2d.h"
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#include "scene/audio/audio_stream_player_internal.h"
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#include "scene/main/viewport.h"
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#include "scene/resources/world_2d.h"
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#include "scene/scene_string_names.h"
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#include "servers/audio/audio_stream.h"
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#include "servers/audio_server.h"
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void AudioStreamPlayer2D::_notification(int p_what) {
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internal->notification(p_what);
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switch (p_what) {
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case NOTIFICATION_ENTER_TREE: {
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AudioServer::get_singleton()->add_listener_changed_callback(_listener_changed_cb, this);
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} break;
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case NOTIFICATION_EXIT_TREE: {
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AudioServer::get_singleton()->remove_listener_changed_callback(_listener_changed_cb, this);
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} break;
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case NOTIFICATION_INTERNAL_PHYSICS_PROCESS: {
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// Update anything related to position first, if possible of course.
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if (setplay.get() > 0 || (internal->active.is_set() && last_mix_count != AudioServer::get_singleton()->get_mix_count()) || force_update_panning) {
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force_update_panning = false;
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_update_panning();
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}
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if (setplayback.is_valid() && setplay.get() >= 0) {
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internal->active.set();
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AudioServer::get_singleton()->start_playback_stream(setplayback, _get_actual_bus(), volume_vector, setplay.get(), internal->pitch_scale);
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setplayback.unref();
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setplay.set(-1);
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}
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if (!internal->stream_playbacks.is_empty() && internal->active.is_set()) {
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internal->process();
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}
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internal->ensure_playback_limit();
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} break;
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}
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}
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// Interacts with PhysicsServer2D, so can only be called during _physics_process.
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StringName AudioStreamPlayer2D::_get_actual_bus() {
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Vector2 global_pos = get_global_position();
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//check if any area is diverting sound into a bus
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Ref<World2D> world_2d = get_world_2d();
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ERR_FAIL_COND_V(world_2d.is_null(), SceneStringNames::get_singleton()->Master);
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PhysicsDirectSpaceState2D *space_state = PhysicsServer2D::get_singleton()->space_get_direct_state(world_2d->get_space());
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ERR_FAIL_NULL_V(space_state, SceneStringNames::get_singleton()->Master);
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PhysicsDirectSpaceState2D::ShapeResult sr[MAX_INTERSECT_AREAS];
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PhysicsDirectSpaceState2D::PointParameters point_params;
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point_params.position = global_pos;
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point_params.collision_mask = area_mask;
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point_params.collide_with_bodies = false;
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point_params.collide_with_areas = true;
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int areas = space_state->intersect_point(point_params, sr, MAX_INTERSECT_AREAS);
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for (int i = 0; i < areas; i++) {
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Area2D *area2d = Object::cast_to<Area2D>(sr[i].collider);
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if (!area2d) {
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continue;
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}
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if (!area2d->is_overriding_audio_bus()) {
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continue;
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}
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return area2d->get_audio_bus_name();
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}
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return internal->bus;
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}
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// Interacts with PhysicsServer2D, so can only be called during _physics_process
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void AudioStreamPlayer2D::_update_panning() {
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if (!internal->active.is_set() || internal->stream.is_null()) {
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return;
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}
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Ref<World2D> world_2d = get_world_2d();
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ERR_FAIL_COND(world_2d.is_null());
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Vector2 global_pos = get_global_position();
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HashSet<Viewport *> viewports = world_2d->get_viewports();
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volume_vector.resize(4);
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volume_vector.write[0] = AudioFrame(0, 0);
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volume_vector.write[1] = AudioFrame(0, 0);
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volume_vector.write[2] = AudioFrame(0, 0);
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volume_vector.write[3] = AudioFrame(0, 0);
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for (Viewport *vp : viewports) {
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if (!vp->is_audio_listener_2d()) {
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continue;
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}
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//compute matrix to convert to screen
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Vector2 screen_size = vp->get_visible_rect().size;
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Vector2 listener_in_global;
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Vector2 relative_to_listener;
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//screen in global is used for attenuation
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AudioListener2D *listener = vp->get_audio_listener_2d();
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Transform2D full_canvas_transform = vp->get_global_canvas_transform() * vp->get_canvas_transform();
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if (listener) {
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listener_in_global = listener->get_global_position();
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relative_to_listener = (global_pos - listener_in_global).rotated(-listener->get_global_rotation());
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relative_to_listener *= full_canvas_transform.get_scale(); // Default listener scales with canvas size, do the same here.
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} else {
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listener_in_global = full_canvas_transform.affine_inverse().xform(screen_size * 0.5);
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relative_to_listener = full_canvas_transform.xform(global_pos) - screen_size * 0.5;
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}
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float dist = global_pos.distance_to(listener_in_global); // Distance to listener, or screen if none.
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if (dist > max_distance) {
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continue; // Can't hear this sound in this viewport.
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}
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float multiplier = Math::pow(1.0f - dist / max_distance, attenuation);
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multiplier *= Math::db_to_linear(internal->volume_db); // Also apply player volume!
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float pan = relative_to_listener.x / screen_size.x;
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// Don't let the panning effect extend (too far) beyond the screen.
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pan = CLAMP(pan, -1, 1);
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// Bake in a constant factor here to allow the project setting defaults for 2d and 3d to be normalized to 1.0.
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pan *= panning_strength * cached_global_panning_strength * 0.5f;
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pan = CLAMP(pan + 0.5, 0.0, 1.0);
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float l = 1.0 - pan;
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float r = pan;
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const AudioFrame &prev_sample = volume_vector[0];
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AudioFrame new_sample = AudioFrame(l, r) * multiplier;
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volume_vector.write[0] = AudioFrame(MAX(prev_sample[0], new_sample[0]), MAX(prev_sample[1], new_sample[1]));
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}
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for (const Ref<AudioStreamPlayback> &playback : internal->stream_playbacks) {
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AudioServer::get_singleton()->set_playback_bus_exclusive(playback, _get_actual_bus(), volume_vector);
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}
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for (Ref<AudioStreamPlayback> &playback : internal->stream_playbacks) {
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AudioServer::get_singleton()->set_playback_pitch_scale(playback, internal->pitch_scale);
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}
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last_mix_count = AudioServer::get_singleton()->get_mix_count();
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}
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void AudioStreamPlayer2D::set_stream(Ref<AudioStream> p_stream) {
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internal->set_stream(p_stream);
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}
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Ref<AudioStream> AudioStreamPlayer2D::get_stream() const {
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return internal->stream;
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}
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void AudioStreamPlayer2D::set_volume_db(float p_volume) {
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internal->volume_db = p_volume;
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}
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float AudioStreamPlayer2D::get_volume_db() const {
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return internal->volume_db;
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}
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void AudioStreamPlayer2D::set_pitch_scale(float p_pitch_scale) {
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internal->set_pitch_scale(p_pitch_scale);
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}
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float AudioStreamPlayer2D::get_pitch_scale() const {
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return internal->pitch_scale;
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}
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void AudioStreamPlayer2D::play(float p_from_pos) {
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Ref<AudioStreamPlayback> stream_playback = internal->play_basic();
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if (stream_playback.is_null()) {
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return;
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}
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setplayback = stream_playback;
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setplay.set(p_from_pos);
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}
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void AudioStreamPlayer2D::seek(float p_seconds) {
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internal->seek(p_seconds);
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}
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void AudioStreamPlayer2D::stop() {
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setplay.set(-1);
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internal->stop();
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}
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bool AudioStreamPlayer2D::is_playing() const {
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if (setplay.get() >= 0) {
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return true; // play() has been called this frame, but no playback exists just yet.
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}
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return internal->is_playing();
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}
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float AudioStreamPlayer2D::get_playback_position() {
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return internal->get_playback_position();
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}
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void AudioStreamPlayer2D::set_bus(const StringName &p_bus) {
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internal->bus = p_bus; // This will be pushed to the audio server during the next physics timestep, which is fast enough.
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}
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StringName AudioStreamPlayer2D::get_bus() const {
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return internal->get_bus();
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}
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void AudioStreamPlayer2D::set_autoplay(bool p_enable) {
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internal->autoplay = p_enable;
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}
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bool AudioStreamPlayer2D::is_autoplay_enabled() const {
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return internal->autoplay;
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}
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void AudioStreamPlayer2D::_set_playing(bool p_enable) {
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internal->set_playing(p_enable);
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}
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bool AudioStreamPlayer2D::_is_active() const {
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return internal->is_active();
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}
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void AudioStreamPlayer2D::_validate_property(PropertyInfo &p_property) const {
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internal->validate_property(p_property);
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}
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void AudioStreamPlayer2D::set_max_distance(float p_pixels) {
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ERR_FAIL_COND(p_pixels <= 0.0);
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max_distance = p_pixels;
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}
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float AudioStreamPlayer2D::get_max_distance() const {
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return max_distance;
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}
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void AudioStreamPlayer2D::set_attenuation(float p_curve) {
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attenuation = p_curve;
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}
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float AudioStreamPlayer2D::get_attenuation() const {
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return attenuation;
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}
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void AudioStreamPlayer2D::set_area_mask(uint32_t p_mask) {
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area_mask = p_mask;
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}
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uint32_t AudioStreamPlayer2D::get_area_mask() const {
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return area_mask;
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}
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void AudioStreamPlayer2D::set_stream_paused(bool p_pause) {
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internal->set_stream_paused(p_pause);
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}
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bool AudioStreamPlayer2D::get_stream_paused() const {
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return internal->get_stream_paused();
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}
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bool AudioStreamPlayer2D::has_stream_playback() {
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return internal->has_stream_playback();
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}
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Ref<AudioStreamPlayback> AudioStreamPlayer2D::get_stream_playback() {
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return internal->get_stream_playback();
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}
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void AudioStreamPlayer2D::set_max_polyphony(int p_max_polyphony) {
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internal->set_max_polyphony(p_max_polyphony);
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}
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int AudioStreamPlayer2D::get_max_polyphony() const {
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return internal->max_polyphony;
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}
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void AudioStreamPlayer2D::set_panning_strength(float p_panning_strength) {
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ERR_FAIL_COND_MSG(p_panning_strength < 0, "Panning strength must be a positive number.");
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panning_strength = p_panning_strength;
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}
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float AudioStreamPlayer2D::get_panning_strength() const {
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return panning_strength;
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}
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bool AudioStreamPlayer2D::_set(const StringName &p_name, const Variant &p_value) {
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return internal->set(p_name, p_value);
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}
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bool AudioStreamPlayer2D::_get(const StringName &p_name, Variant &r_ret) const {
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return internal->get(p_name, r_ret);
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}
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void AudioStreamPlayer2D::_get_property_list(List<PropertyInfo> *p_list) const {
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internal->get_property_list(p_list);
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}
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void AudioStreamPlayer2D::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_stream", "stream"), &AudioStreamPlayer2D::set_stream);
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ClassDB::bind_method(D_METHOD("get_stream"), &AudioStreamPlayer2D::get_stream);
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ClassDB::bind_method(D_METHOD("set_volume_db", "volume_db"), &AudioStreamPlayer2D::set_volume_db);
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ClassDB::bind_method(D_METHOD("get_volume_db"), &AudioStreamPlayer2D::get_volume_db);
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ClassDB::bind_method(D_METHOD("set_pitch_scale", "pitch_scale"), &AudioStreamPlayer2D::set_pitch_scale);
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ClassDB::bind_method(D_METHOD("get_pitch_scale"), &AudioStreamPlayer2D::get_pitch_scale);
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ClassDB::bind_method(D_METHOD("play", "from_position"), &AudioStreamPlayer2D::play, DEFVAL(0.0));
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ClassDB::bind_method(D_METHOD("seek", "to_position"), &AudioStreamPlayer2D::seek);
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ClassDB::bind_method(D_METHOD("stop"), &AudioStreamPlayer2D::stop);
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ClassDB::bind_method(D_METHOD("is_playing"), &AudioStreamPlayer2D::is_playing);
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ClassDB::bind_method(D_METHOD("get_playback_position"), &AudioStreamPlayer2D::get_playback_position);
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ClassDB::bind_method(D_METHOD("set_bus", "bus"), &AudioStreamPlayer2D::set_bus);
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ClassDB::bind_method(D_METHOD("get_bus"), &AudioStreamPlayer2D::get_bus);
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ClassDB::bind_method(D_METHOD("set_autoplay", "enable"), &AudioStreamPlayer2D::set_autoplay);
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ClassDB::bind_method(D_METHOD("is_autoplay_enabled"), &AudioStreamPlayer2D::is_autoplay_enabled);
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ClassDB::bind_method(D_METHOD("_set_playing", "enable"), &AudioStreamPlayer2D::_set_playing);
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ClassDB::bind_method(D_METHOD("_is_active"), &AudioStreamPlayer2D::_is_active);
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ClassDB::bind_method(D_METHOD("set_max_distance", "pixels"), &AudioStreamPlayer2D::set_max_distance);
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ClassDB::bind_method(D_METHOD("get_max_distance"), &AudioStreamPlayer2D::get_max_distance);
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ClassDB::bind_method(D_METHOD("set_attenuation", "curve"), &AudioStreamPlayer2D::set_attenuation);
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ClassDB::bind_method(D_METHOD("get_attenuation"), &AudioStreamPlayer2D::get_attenuation);
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ClassDB::bind_method(D_METHOD("set_area_mask", "mask"), &AudioStreamPlayer2D::set_area_mask);
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ClassDB::bind_method(D_METHOD("get_area_mask"), &AudioStreamPlayer2D::get_area_mask);
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ClassDB::bind_method(D_METHOD("set_stream_paused", "pause"), &AudioStreamPlayer2D::set_stream_paused);
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ClassDB::bind_method(D_METHOD("get_stream_paused"), &AudioStreamPlayer2D::get_stream_paused);
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ClassDB::bind_method(D_METHOD("set_max_polyphony", "max_polyphony"), &AudioStreamPlayer2D::set_max_polyphony);
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ClassDB::bind_method(D_METHOD("get_max_polyphony"), &AudioStreamPlayer2D::get_max_polyphony);
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ClassDB::bind_method(D_METHOD("set_panning_strength", "panning_strength"), &AudioStreamPlayer2D::set_panning_strength);
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ClassDB::bind_method(D_METHOD("get_panning_strength"), &AudioStreamPlayer2D::get_panning_strength);
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ClassDB::bind_method(D_METHOD("has_stream_playback"), &AudioStreamPlayer2D::has_stream_playback);
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ClassDB::bind_method(D_METHOD("get_stream_playback"), &AudioStreamPlayer2D::get_stream_playback);
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "stream", PROPERTY_HINT_RESOURCE_TYPE, "AudioStream"), "set_stream", "get_stream");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "volume_db", PROPERTY_HINT_RANGE, "-80,24,suffix:dB"), "set_volume_db", "get_volume_db");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "pitch_scale", PROPERTY_HINT_RANGE, "0.01,4,0.01,or_greater"), "set_pitch_scale", "get_pitch_scale");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "playing", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_EDITOR), "_set_playing", "is_playing");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "autoplay"), "set_autoplay", "is_autoplay_enabled");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "stream_paused", PROPERTY_HINT_NONE, ""), "set_stream_paused", "get_stream_paused");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "max_distance", PROPERTY_HINT_RANGE, "1,4096,1,or_greater,exp,suffix:px"), "set_max_distance", "get_max_distance");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "attenuation", PROPERTY_HINT_EXP_EASING, "attenuation"), "set_attenuation", "get_attenuation");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "max_polyphony", PROPERTY_HINT_NONE, ""), "set_max_polyphony", "get_max_polyphony");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "panning_strength", PROPERTY_HINT_RANGE, "0,3,0.01,or_greater"), "set_panning_strength", "get_panning_strength");
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ADD_PROPERTY(PropertyInfo(Variant::STRING_NAME, "bus", PROPERTY_HINT_ENUM, ""), "set_bus", "get_bus");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "area_mask", PROPERTY_HINT_LAYERS_2D_PHYSICS), "set_area_mask", "get_area_mask");
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ADD_SIGNAL(MethodInfo("finished"));
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}
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AudioStreamPlayer2D::AudioStreamPlayer2D() {
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internal = memnew(AudioStreamPlayerInternal(this, callable_mp(this, &AudioStreamPlayer2D::play), true));
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cached_global_panning_strength = GLOBAL_GET("audio/general/2d_panning_strength");
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set_hide_clip_children(true);
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}
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AudioStreamPlayer2D::~AudioStreamPlayer2D() {
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memdelete(internal);
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}
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