321 lines
11 KiB
C++
321 lines
11 KiB
C++
/**************************************************************************/
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/* audio_stream_player_internal.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_internal.h"
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#include "scene/main/node.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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void AudioStreamPlayerInternal::_set_process(bool p_enabled) {
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if (physical) {
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node->set_physics_process_internal(p_enabled);
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} else {
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node->set_process(p_enabled);
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}
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}
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void AudioStreamPlayerInternal::_update_stream_parameters() {
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if (stream.is_null()) {
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return;
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}
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List<AudioStream::Parameter> parameters;
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stream->get_parameter_list(¶meters);
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for (const AudioStream::Parameter &K : parameters) {
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const PropertyInfo &pi = K.property;
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StringName key = PARAM_PREFIX + pi.name;
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if (!playback_parameters.has(key)) {
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ParameterData pd;
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pd.path = pi.name;
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pd.value = K.default_value;
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playback_parameters.insert(key, pd);
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}
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}
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}
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void AudioStreamPlayerInternal::process() {
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Vector<Ref<AudioStreamPlayback>> playbacks_to_remove;
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for (Ref<AudioStreamPlayback> &playback : stream_playbacks) {
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if (playback.is_valid() && !AudioServer::get_singleton()->is_playback_active(playback) && !AudioServer::get_singleton()->is_playback_paused(playback)) {
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playbacks_to_remove.push_back(playback);
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}
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}
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// Now go through and remove playbacks that have finished. Removing elements from a Vector in a range based for is asking for trouble.
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for (Ref<AudioStreamPlayback> &playback : playbacks_to_remove) {
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stream_playbacks.erase(playback);
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}
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if (!playbacks_to_remove.is_empty() && stream_playbacks.is_empty()) {
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// This node is no longer actively playing audio.
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active.clear();
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_set_process(false);
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}
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if (!playbacks_to_remove.is_empty()) {
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node->emit_signal(SNAME("finished"));
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}
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}
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void AudioStreamPlayerInternal::ensure_playback_limit() {
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while (stream_playbacks.size() > max_polyphony) {
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AudioServer::get_singleton()->stop_playback_stream(stream_playbacks[0]);
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stream_playbacks.remove_at(0);
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}
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}
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void AudioStreamPlayerInternal::notification(int p_what) {
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switch (p_what) {
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case Node::NOTIFICATION_ENTER_TREE: {
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if (autoplay && !Engine::get_singleton()->is_editor_hint()) {
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play_callable.call(0.0);
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}
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set_stream_paused(!node->can_process());
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} break;
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case Node::NOTIFICATION_EXIT_TREE: {
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set_stream_paused(true);
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} break;
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case Node::NOTIFICATION_INTERNAL_PROCESS: {
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process();
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} break;
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case Node::NOTIFICATION_PREDELETE: {
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for (Ref<AudioStreamPlayback> &playback : stream_playbacks) {
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AudioServer::get_singleton()->stop_playback_stream(playback);
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}
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stream_playbacks.clear();
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} break;
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case Node::NOTIFICATION_PAUSED: {
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if (!node->can_process()) {
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// Node can't process so we start fading out to silence
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set_stream_paused(true);
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}
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} break;
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case Node::NOTIFICATION_UNPAUSED: {
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set_stream_paused(false);
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} break;
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}
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}
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Ref<AudioStreamPlayback> AudioStreamPlayerInternal::play_basic() {
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Ref<AudioStreamPlayback> stream_playback;
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if (stream.is_null()) {
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return stream_playback;
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}
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ERR_FAIL_COND_V_MSG(!node->is_inside_tree(), stream_playback, "Playback can only happen when a node is inside the scene tree");
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if (stream->is_monophonic() && is_playing()) {
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stop();
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}
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stream_playback = stream->instantiate_playback();
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ERR_FAIL_COND_V_MSG(stream_playback.is_null(), stream_playback, "Failed to instantiate playback.");
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for (const KeyValue<StringName, ParameterData> &K : playback_parameters) {
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stream_playback->set_parameter(K.value.path, K.value.value);
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}
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stream_playbacks.push_back(stream_playback);
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active.set();
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_set_process(true);
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return stream_playback;
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}
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void AudioStreamPlayerInternal::set_stream_paused(bool p_pause) {
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// TODO this does not have perfect recall, fix that maybe? If there are zero playbacks registered with the AudioServer, this bool isn't persisted.
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for (Ref<AudioStreamPlayback> &playback : stream_playbacks) {
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AudioServer::get_singleton()->set_playback_paused(playback, p_pause);
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}
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}
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bool AudioStreamPlayerInternal::get_stream_paused() const {
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// There's currently no way to pause some playback streams but not others. Check the first and don't bother looking at the rest.
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if (!stream_playbacks.is_empty()) {
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return AudioServer::get_singleton()->is_playback_paused(stream_playbacks[0]);
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}
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return false;
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}
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void AudioStreamPlayerInternal::validate_property(PropertyInfo &p_property) const {
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if (p_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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}
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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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p_property.hint_string = options;
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}
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}
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bool AudioStreamPlayerInternal::set(const StringName &p_name, const Variant &p_value) {
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ParameterData *pd = playback_parameters.getptr(p_name);
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if (!pd) {
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return false;
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}
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pd->value = p_value;
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for (Ref<AudioStreamPlayback> &playback : stream_playbacks) {
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playback->set_parameter(pd->path, pd->value);
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}
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return true;
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}
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bool AudioStreamPlayerInternal::get(const StringName &p_name, Variant &r_ret) const {
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const ParameterData *pd = playback_parameters.getptr(p_name);
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if (!pd) {
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return false;
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}
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r_ret = pd->value;
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return true;
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}
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void AudioStreamPlayerInternal::get_property_list(List<PropertyInfo> *p_list) const {
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if (stream.is_null()) {
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return;
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}
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List<AudioStream::Parameter> parameters;
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stream->get_parameter_list(¶meters);
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for (const AudioStream::Parameter &K : parameters) {
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PropertyInfo pi = K.property;
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pi.name = PARAM_PREFIX + pi.name;
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const ParameterData *pd = playback_parameters.getptr(pi.name);
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if (pd && pd->value == K.default_value) {
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pi.usage &= ~PROPERTY_USAGE_STORAGE;
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}
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p_list->push_back(pi);
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}
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}
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void AudioStreamPlayerInternal::set_stream(Ref<AudioStream> p_stream) {
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if (stream.is_valid()) {
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stream->disconnect(SNAME("parameter_list_changed"), callable_mp(this, &AudioStreamPlayerInternal::_update_stream_parameters));
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}
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stop();
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stream = p_stream;
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_update_stream_parameters();
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if (stream.is_valid()) {
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stream->connect(SNAME("parameter_list_changed"), callable_mp(this, &AudioStreamPlayerInternal::_update_stream_parameters));
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}
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node->notify_property_list_changed();
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}
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void AudioStreamPlayerInternal::seek(float p_seconds) {
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if (is_playing()) {
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stop();
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play_callable.call(p_seconds);
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}
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}
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void AudioStreamPlayerInternal::stop() {
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for (Ref<AudioStreamPlayback> &playback : stream_playbacks) {
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AudioServer::get_singleton()->stop_playback_stream(playback);
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}
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stream_playbacks.clear();
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active.clear();
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_set_process(false);
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}
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bool AudioStreamPlayerInternal::is_playing() const {
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for (const Ref<AudioStreamPlayback> &playback : stream_playbacks) {
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if (AudioServer::get_singleton()->is_playback_active(playback)) {
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return true;
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}
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}
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return false;
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}
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float AudioStreamPlayerInternal::get_playback_position() {
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// Return the playback position of the most recently started playback stream.
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if (!stream_playbacks.is_empty()) {
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return AudioServer::get_singleton()->get_playback_position(stream_playbacks[stream_playbacks.size() - 1]);
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}
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return 0;
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}
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void AudioStreamPlayerInternal::set_playing(bool p_enable) {
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if (p_enable) {
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play_callable.call(0.0);
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} else {
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stop();
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}
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}
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bool AudioStreamPlayerInternal::is_active() const {
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return active.is_set();
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}
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void AudioStreamPlayerInternal::set_pitch_scale(float p_pitch_scale) {
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ERR_FAIL_COND(p_pitch_scale <= 0.0);
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pitch_scale = p_pitch_scale;
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for (Ref<AudioStreamPlayback> &playback : stream_playbacks) {
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AudioServer::get_singleton()->set_playback_pitch_scale(playback, pitch_scale);
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}
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}
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void AudioStreamPlayerInternal::set_max_polyphony(int p_max_polyphony) {
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if (p_max_polyphony > 0) {
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max_polyphony = p_max_polyphony;
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}
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}
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bool AudioStreamPlayerInternal::has_stream_playback() {
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return !stream_playbacks.is_empty();
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}
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Ref<AudioStreamPlayback> AudioStreamPlayerInternal::get_stream_playback() {
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ERR_FAIL_COND_V_MSG(stream_playbacks.is_empty(), Ref<AudioStreamPlayback>(), "Player is inactive. Call play() before requesting get_stream_playback().");
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return stream_playbacks[stream_playbacks.size() - 1];
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}
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StringName AudioStreamPlayerInternal::get_bus() const {
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const String bus_name = bus;
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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_name) {
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return bus;
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}
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}
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return SceneStringNames::get_singleton()->Master;
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}
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AudioStreamPlayerInternal::AudioStreamPlayerInternal(Node *p_node, const Callable &p_play_callable, bool p_physical) {
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node = p_node;
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play_callable = p_play_callable;
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physical = p_physical;
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bus = SceneStringNames::get_singleton()->Master;
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AudioServer::get_singleton()->connect("bus_layout_changed", callable_mp((Object *)node, &Object::notify_property_list_changed));
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AudioServer::get_singleton()->connect("bus_renamed", callable_mp((Object *)node, &Object::notify_property_list_changed).unbind(3));
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}
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