313 lines
10 KiB
C++
313 lines
10 KiB
C++
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/**************************************************************************/
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/* audio_stream_synchronized.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_synchronized.h"
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#include "core/math/math_funcs.h"
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#include "core/string/print_string.h"
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AudioStreamSynchronized::AudioStreamSynchronized() {
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}
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Ref<AudioStreamPlayback> AudioStreamSynchronized::instantiate_playback() {
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Ref<AudioStreamPlaybackSynchronized> playback_playlist;
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playback_playlist.instantiate();
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playback_playlist->stream = Ref<AudioStreamSynchronized>(this);
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playback_playlist->_update_playback_instances();
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playbacks.insert(playback_playlist.operator->());
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return playback_playlist;
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}
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String AudioStreamSynchronized::get_stream_name() const {
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return "Synchronized";
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}
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void AudioStreamSynchronized::set_sync_stream(int p_stream_index, Ref<AudioStream> p_stream) {
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ERR_FAIL_COND(p_stream == this);
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ERR_FAIL_INDEX(p_stream_index, MAX_STREAMS);
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AudioServer::get_singleton()->lock();
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audio_streams[p_stream_index] = p_stream;
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for (AudioStreamPlaybackSynchronized *E : playbacks) {
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E->_update_playback_instances();
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}
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AudioServer::get_singleton()->unlock();
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}
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Ref<AudioStream> AudioStreamSynchronized::get_sync_stream(int p_stream_index) const {
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ERR_FAIL_INDEX_V(p_stream_index, MAX_STREAMS, Ref<AudioStream>());
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return audio_streams[p_stream_index];
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}
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void AudioStreamSynchronized::set_sync_stream_volume(int p_stream_index, float p_db) {
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ERR_FAIL_INDEX(p_stream_index, MAX_STREAMS);
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audio_stream_volume_db[p_stream_index] = p_db;
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}
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float AudioStreamSynchronized::get_sync_stream_volume(int p_stream_index) const {
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ERR_FAIL_INDEX_V(p_stream_index, MAX_STREAMS, 0);
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return audio_stream_volume_db[p_stream_index];
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}
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double AudioStreamSynchronized::get_bpm() const {
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for (int i = 0; i < stream_count; i++) {
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if (audio_streams[i].is_valid()) {
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double bpm = audio_streams[i]->get_bpm();
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if (bpm != 0.0) {
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return bpm;
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}
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}
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}
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return 0.0;
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}
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int AudioStreamSynchronized::get_beat_count() const {
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int max_beats = 0;
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for (int i = 0; i < stream_count; i++) {
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if (audio_streams[i].is_valid()) {
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max_beats = MAX(max_beats, audio_streams[i]->get_beat_count());
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}
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}
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return max_beats;
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}
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bool AudioStreamSynchronized::has_loop() const {
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for (int i = 0; i < stream_count; i++) {
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if (audio_streams[i].is_valid()) {
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if (audio_streams[i]->has_loop()) {
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return true;
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}
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}
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}
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return false;
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}
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double AudioStreamSynchronized::get_length() const {
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double max_length = 0.0;
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for (int i = 0; i < stream_count; i++) {
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if (audio_streams[i].is_valid()) {
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max_length = MAX(max_length, audio_streams[i]->get_length());
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}
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}
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return max_length;
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}
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void AudioStreamSynchronized::set_stream_count(int p_count) {
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ERR_FAIL_COND(p_count < 0 || p_count > MAX_STREAMS);
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AudioServer::get_singleton()->lock();
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stream_count = p_count;
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AudioServer::get_singleton()->unlock();
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notify_property_list_changed();
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}
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int AudioStreamSynchronized::get_stream_count() const {
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return stream_count;
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}
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void AudioStreamSynchronized::_validate_property(PropertyInfo &property) const {
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String prop = property.name;
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if (prop != "stream_count" && prop.begins_with("stream_")) {
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int stream = prop.get_slicec('/', 0).get_slicec('_', 1).to_int();
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if (stream >= stream_count) {
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property.usage = PROPERTY_USAGE_INTERNAL;
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}
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}
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}
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void AudioStreamSynchronized::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_stream_count", "stream_count"), &AudioStreamSynchronized::set_stream_count);
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ClassDB::bind_method(D_METHOD("get_stream_count"), &AudioStreamSynchronized::get_stream_count);
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ClassDB::bind_method(D_METHOD("set_sync_stream", "stream_index", "audio_stream"), &AudioStreamSynchronized::set_sync_stream);
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ClassDB::bind_method(D_METHOD("get_sync_stream", "stream_index"), &AudioStreamSynchronized::get_sync_stream);
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ClassDB::bind_method(D_METHOD("set_sync_stream_volume", "stream_index", "volume_db"), &AudioStreamSynchronized::set_sync_stream_volume);
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ClassDB::bind_method(D_METHOD("get_sync_stream_volume", "stream_index"), &AudioStreamSynchronized::get_sync_stream_volume);
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ADD_PROPERTY(PropertyInfo(Variant::INT, "stream_count", PROPERTY_HINT_RANGE, "0," + itos(MAX_STREAMS), PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_ARRAY, "Streams,stream_,unfoldable,page_size=999,add_button_text=" + String(RTR("Add Stream"))), "set_stream_count", "get_stream_count");
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for (int i = 0; i < MAX_STREAMS; i++) {
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ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "stream_" + itos(i) + "/stream", PROPERTY_HINT_RESOURCE_TYPE, "AudioStream", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_INTERNAL), "set_sync_stream", "get_sync_stream", i);
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ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "stream_" + itos(i) + "/volume", PROPERTY_HINT_RANGE, "-60,12,0.01,suffix:db", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_INTERNAL), "set_sync_stream_volume", "get_sync_stream_volume", i);
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}
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BIND_CONSTANT(MAX_STREAMS);
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}
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//////////////////////
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//////////////////////
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AudioStreamPlaybackSynchronized::AudioStreamPlaybackSynchronized() {
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}
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AudioStreamPlaybackSynchronized::~AudioStreamPlaybackSynchronized() {
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if (stream.is_valid()) {
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stream->playbacks.erase(this);
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}
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}
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void AudioStreamPlaybackSynchronized::stop() {
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active = false;
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for (int i = 0; i < stream->stream_count; i++) {
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if (playback[i].is_valid()) {
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playback[i]->stop();
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}
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}
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}
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void AudioStreamPlaybackSynchronized::start(double p_from_pos) {
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if (active) {
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stop();
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}
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for (int i = 0; i < stream->stream_count; i++) {
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if (playback[i].is_valid()) {
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playback[i]->start(p_from_pos);
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active = true;
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}
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}
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}
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void AudioStreamPlaybackSynchronized::seek(double p_time) {
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for (int i = 0; i < stream->stream_count; i++) {
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if (playback[i].is_valid()) {
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playback[i]->seek(p_time);
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}
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}
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}
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int AudioStreamPlaybackSynchronized::mix(AudioFrame *p_buffer, float p_rate_scale, int p_frames) {
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if (active != true) {
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for (int i = 0; i < p_frames; i++) {
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p_buffer[i] = AudioFrame(0.0, 0.0);
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}
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return p_frames;
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}
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int todo = p_frames;
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bool any_active = false;
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while (todo) {
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int to_mix = MIN(todo, MIX_BUFFER_SIZE);
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bool first = true;
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for (int i = 0; i < stream->stream_count; i++) {
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if (playback[i].is_valid() && playback[i]->is_playing()) {
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float volume = Math::db_to_linear(stream->audio_stream_volume_db[i]);
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if (first) {
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playback[i]->mix(p_buffer, p_rate_scale, to_mix);
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for (int j = 0; j < to_mix; j++) {
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p_buffer[j] *= volume;
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}
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first = false;
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any_active = true;
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} else {
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playback[i]->mix(mix_buffer, p_rate_scale, to_mix);
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for (int j = 0; j < to_mix; j++) {
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p_buffer[j] += mix_buffer[j] * volume;
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}
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}
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}
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}
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if (first) {
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// Nothing mixed, put zeroes.
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for (int j = 0; j < to_mix; j++) {
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p_buffer[j] = AudioFrame(0, 0);
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}
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}
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p_buffer += to_mix;
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todo -= to_mix;
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}
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if (!any_active) {
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active = false;
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}
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return p_frames;
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}
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void AudioStreamPlaybackSynchronized::tag_used_streams() {
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if (active) {
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for (int i = 0; i < stream->stream_count; i++) {
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if (playback[i].is_valid() && playback[i]->is_playing()) {
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stream->audio_streams[i]->tag_used(playback[i]->get_playback_position());
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}
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}
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stream->tag_used(0);
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}
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}
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int AudioStreamPlaybackSynchronized::get_loop_count() const {
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int min_loops = 0;
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bool min_loops_found = false;
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for (int i = 0; i < stream->stream_count; i++) {
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if (playback[i].is_valid() && playback[i]->is_playing()) {
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int loops = playback[i]->get_loop_count();
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if (!min_loops_found || loops < min_loops) {
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min_loops = loops;
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min_loops_found = true;
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}
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}
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}
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return min_loops;
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}
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double AudioStreamPlaybackSynchronized::get_playback_position() const {
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float max_pos = 0;
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bool pos_found = false;
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for (int i = 0; i < stream->stream_count; i++) {
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if (playback[i].is_valid() && playback[i]->is_playing()) {
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float pos = playback[i]->get_playback_position();
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if (!pos_found || pos > max_pos) {
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max_pos = pos;
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pos_found = true;
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}
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}
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}
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return max_pos;
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}
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bool AudioStreamPlaybackSynchronized::is_playing() const {
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return active;
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}
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void AudioStreamPlaybackSynchronized::_update_playback_instances() {
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stop();
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for (int i = 0; i < stream->stream_count; i++) {
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if (stream->audio_streams[i].is_valid()) {
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playback[i] = stream->audio_streams[i]->instantiate_playback();
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} else {
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playback[i].unref();
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}
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}
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}
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