c2a8eb2081
It appears that some time ago users were supposed to be able to include the playback of sound effects in their animations by placing keys on the "playing" property. Back then the key frame editor took the value of the checkbox in the property_editor.
Somewhere / Sometime this behaviour changed and the key frame editor is now reading the actual value from the object instead of relying on the property editor.
This commit introduces a fake active field that is returned when reading the playing property in the editor. While the actual active flag is changed when playback is finished the fake one will stay the same thus allowing the user to take their time with setting the key in the animation editor.
(cherry picked from commit bc1522e268)
499 lines
15 KiB
C++
499 lines
15 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) 2007-2018 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
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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 "engine.h"
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#include "scene/2d/area_2d.h"
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#include "scene/main/viewport.h"
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void AudioStreamPlayer2D::_mix_audio() {
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if (!stream_playback.is_valid()) {
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return;
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}
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if (!active) {
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return;
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}
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if (setseek >= 0.0) {
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stream_playback->start(setseek);
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setseek = -1.0; //reset seek
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}
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//get data
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AudioFrame *buffer = mix_buffer.ptrw();
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int buffer_size = mix_buffer.size();
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//mix
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stream_playback->mix(buffer, pitch_scale, buffer_size);
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//write all outputs
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for (int i = 0; i < output_count; i++) {
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Output current = outputs[i];
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//see if current output exists, to keep volume ramp
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bool found = false;
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for (int j = i; j < prev_output_count; j++) {
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if (prev_outputs[j].viewport == current.viewport) {
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if (j != i) {
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SWAP(prev_outputs[j], prev_outputs[i]);
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}
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found = true;
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break;
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}
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}
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if (!found) {
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//create new if was not used before
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if (prev_output_count < MAX_OUTPUTS) {
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prev_outputs[prev_output_count] = prev_outputs[i]; //may be owned by another viewport
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prev_output_count++;
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}
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prev_outputs[i] = current;
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}
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//mix!
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AudioFrame vol_inc = (current.vol - prev_outputs[i].vol) / float(buffer_size);
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AudioFrame vol = current.vol;
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int cc = AudioServer::get_singleton()->get_channel_count();
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if (cc == 1) {
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AudioFrame *target = AudioServer::get_singleton()->thread_get_channel_mix_buffer(current.bus_index, 0);
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for (int j = 0; j < buffer_size; j++) {
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target[j] += buffer[j] * vol;
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vol += vol_inc;
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}
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} else {
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AudioFrame *targets[4];
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for (int k = 0; k < cc; k++) {
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targets[k] = AudioServer::get_singleton()->thread_get_channel_mix_buffer(current.bus_index, k);
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}
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for (int j = 0; j < buffer_size; j++) {
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AudioFrame frame = buffer[j] * vol;
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for (int k = 0; k < cc; k++) {
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targets[k][j] += frame;
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}
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vol += vol_inc;
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}
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}
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prev_outputs[i] = current;
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}
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prev_output_count = output_count;
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//stream is no longer active, disable this.
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if (!stream_playback->is_playing()) {
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active = false;
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}
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output_ready = false;
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}
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void AudioStreamPlayer2D::_notification(int p_what) {
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if (p_what == NOTIFICATION_ENTER_TREE) {
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AudioServer::get_singleton()->add_callback(_mix_audios, this);
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if (autoplay && !Engine::get_singleton()->is_editor_hint()) {
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play();
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}
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}
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if (p_what == NOTIFICATION_EXIT_TREE) {
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AudioServer::get_singleton()->remove_callback(_mix_audios, this);
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}
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if (p_what == NOTIFICATION_INTERNAL_PHYSICS_PROCESS) {
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//update anything related to position first, if possible of course
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if (!output_ready) {
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List<Viewport *> viewports;
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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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int new_output_count = 0;
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Vector2 global_pos = get_global_position();
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int bus_index = AudioServer::get_singleton()->thread_find_bus_index(bus);
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//check if any area is diverting sound into a bus
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Physics2DDirectSpaceState *space_state = Physics2DServer::get_singleton()->space_get_direct_state(world_2d->get_space());
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Physics2DDirectSpaceState::ShapeResult sr[MAX_INTERSECT_AREAS];
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int areas = space_state->intersect_point(global_pos, sr, MAX_INTERSECT_AREAS, Set<RID>(), area_mask);
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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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if (!area2d->is_overriding_audio_bus())
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continue;
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StringName bus_name = area2d->get_audio_bus_name();
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bus_index = AudioServer::get_singleton()->thread_find_bus_index(bus_name);
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break;
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}
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world_2d->get_viewport_list(&viewports);
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for (List<Viewport *>::Element *E = viewports.front(); E; E = E->next()) {
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Viewport *vp = E->get();
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if (vp->is_audio_listener_2d()) {
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//compute matrix to convert to screen
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Transform2D to_screen = vp->get_global_canvas_transform() * vp->get_canvas_transform();
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Vector2 screen_size = vp->get_visible_rect().size;
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//screen in global is used for attenuation
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Vector2 screen_in_global = to_screen.affine_inverse().xform(screen_size * 0.5);
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float dist = global_pos.distance_to(screen_in_global); //distance to screen center
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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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float multiplier = Math::pow(1.0f - dist / max_distance, attenuation);
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multiplier *= Math::db2linear(volume_db); //also apply player volume!
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//point in screen is used for panning
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Vector2 point_in_screen = to_screen.xform(global_pos);
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float pan = CLAMP(point_in_screen.x / screen_size.width, 0.0, 1.0);
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float l = 1.0 - pan;
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float r = pan;
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outputs[new_output_count].vol = AudioFrame(l, r) * multiplier;
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outputs[new_output_count].bus_index = bus_index;
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outputs[new_output_count].viewport = vp; //keep pointer only for reference
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new_output_count++;
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if (new_output_count == MAX_OUTPUTS)
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break;
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}
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}
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output_count = new_output_count;
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output_ready = true;
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}
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//start playing if requested
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if (setplay >= 0.0) {
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setseek = setplay;
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active = true;
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setplay = -1;
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//do not update, this makes it easier to animate (will shut off otherwise)
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//_change_notify("playing"); //update property in editor
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}
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//stop playing if no longer active
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if (!active) {
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set_physics_process_internal(false);
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//_change_notify("playing"); //update property in editor
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emit_signal("finished");
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}
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}
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}
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void AudioStreamPlayer2D::set_stream(Ref<AudioStream> p_stream) {
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ERR_FAIL_COND(!p_stream.is_valid());
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AudioServer::get_singleton()->lock();
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mix_buffer.resize(AudioServer::get_singleton()->thread_get_mix_buffer_size());
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if (stream_playback.is_valid()) {
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stream_playback.unref();
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stream.unref();
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active = false;
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setseek = -1;
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}
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stream = p_stream;
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stream_playback = p_stream->instance_playback();
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AudioServer::get_singleton()->unlock();
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if (stream_playback.is_null()) {
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stream.unref();
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ERR_FAIL_COND(stream_playback.is_null());
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}
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}
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Ref<AudioStream> AudioStreamPlayer2D::get_stream() const {
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return stream;
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}
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void AudioStreamPlayer2D::set_volume_db(float p_volume) {
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volume_db = p_volume;
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}
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float AudioStreamPlayer2D::get_volume_db() const {
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return volume_db;
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}
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void AudioStreamPlayer2D::set_pitch_scale(float p_pitch_scale) {
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pitch_scale = p_pitch_scale;
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}
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float AudioStreamPlayer2D::get_pitch_scale() const {
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return pitch_scale;
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}
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void AudioStreamPlayer2D::play(float p_from_pos) {
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if (stream_playback.is_valid()) {
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setplay = p_from_pos;
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output_ready = false;
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set_physics_process_internal(true);
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}
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}
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void AudioStreamPlayer2D::seek(float p_seconds) {
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if (stream_playback.is_valid()) {
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setseek = p_seconds;
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}
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}
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void AudioStreamPlayer2D::stop() {
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if (stream_playback.is_valid()) {
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active = false;
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set_physics_process_internal(false);
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setplay = -1;
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}
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}
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bool AudioStreamPlayer2D::is_playing() const {
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#ifdef TOOLS_ENABLED
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if (Engine::get_singleton()->is_editor_hint())
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return fake_active;
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#endif
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if (stream_playback.is_valid()) {
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return active; // && stream_playback->is_playing();
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}
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return false;
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}
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float AudioStreamPlayer2D::get_playback_position() {
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if (stream_playback.is_valid()) {
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return stream_playback->get_playback_position();
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}
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return 0;
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}
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void AudioStreamPlayer2D::set_bus(const StringName &p_bus) {
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//if audio is active, must lock this
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AudioServer::get_singleton()->lock();
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bus = p_bus;
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AudioServer::get_singleton()->unlock();
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}
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StringName AudioStreamPlayer2D::get_bus() const {
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for (int i = 0; i < AudioServer::get_singleton()->get_bus_count(); i++) {
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if (AudioServer::get_singleton()->get_bus_name(i) == bus) {
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return bus;
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}
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}
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return "Master";
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}
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void AudioStreamPlayer2D::set_autoplay(bool p_enable) {
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autoplay = p_enable;
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}
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bool AudioStreamPlayer2D::is_autoplay_enabled() {
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return autoplay;
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}
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void AudioStreamPlayer2D::_set_playing(bool p_enable) {
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#ifdef TOOLS_ENABLED
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fake_active = p_enable;
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#endif
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if (p_enable)
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play();
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else
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stop();
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}
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bool AudioStreamPlayer2D::_is_active() const {
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return active;
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}
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void AudioStreamPlayer2D::_validate_property(PropertyInfo &property) const {
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if (property.name == "bus") {
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String options;
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for (int i = 0; i < AudioServer::get_singleton()->get_bus_count(); i++) {
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if (i > 0)
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options += ",";
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String name = AudioServer::get_singleton()->get_bus_name(i);
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options += name;
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}
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property.hint_string = options;
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}
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}
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void AudioStreamPlayer2D::_bus_layout_changed() {
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_change_notify();
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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::_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("_bus_layout_changed"), &AudioStreamPlayer2D::_bus_layout_changed);
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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::REAL, "volume_db", PROPERTY_HINT_RANGE, "-80,24"), "set_volume_db", "get_volume_db");
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ADD_PROPERTY(PropertyInfo(Variant::REAL, "pitch_scale", PROPERTY_HINT_RANGE, "0.01,32,0.01"), "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::REAL, "max_distance", PROPERTY_HINT_RANGE, "1,65536,1"), "set_max_distance", "get_max_distance");
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ADD_PROPERTY(PropertyInfo(Variant::REAL, "attenuation", PROPERTY_HINT_EXP_EASING), "set_attenuation", "get_attenuation");
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ADD_PROPERTY(PropertyInfo(Variant::STRING, "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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volume_db = 0;
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pitch_scale = 1.0;
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autoplay = false;
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setseek = -1;
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active = false;
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output_count = 0;
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prev_output_count = 0;
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max_distance = 2000;
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attenuation = 1;
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setplay = -1;
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output_ready = false;
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area_mask = 1;
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AudioServer::get_singleton()->connect("bus_layout_changed", this, "_bus_layout_changed");
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}
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AudioStreamPlayer2D::~AudioStreamPlayer2D() {
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}
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