mirror of
https://github.com/godotengine/godot
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126 lines
4.6 KiB
C++
126 lines
4.6 KiB
C++
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/**************************************************************************/
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/* audio_stream_playlist.h */
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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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#ifndef AUDIO_STREAM_PLAYLIST_H
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#define AUDIO_STREAM_PLAYLIST_H
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#include "servers/audio/audio_stream.h"
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class AudioStreamPlaybackPlaylist;
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class AudioStreamPlaylist : public AudioStream {
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GDCLASS(AudioStreamPlaylist, AudioStream)
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OBJ_SAVE_TYPE(AudioStream)
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private:
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friend class AudioStreamPlaybackPlaylist;
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enum {
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MAX_STREAMS = 64
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};
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bool shuffle = false;
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bool loop = true;
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double fade_time = 0.3;
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int stream_count = 0;
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Ref<AudioStream> audio_streams[MAX_STREAMS];
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HashSet<AudioStreamPlaybackPlaylist *> playbacks;
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public:
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virtual double get_bpm() const override;
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void set_stream_count(int p_count);
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int get_stream_count() const;
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void set_fade_time(float p_time);
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float get_fade_time() const;
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void set_shuffle(bool p_shuffle);
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bool get_shuffle() const;
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void set_loop(bool p_loop);
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virtual bool has_loop() const override;
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void set_list_stream(int p_stream_index, Ref<AudioStream> p_stream);
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Ref<AudioStream> get_list_stream(int p_stream_index) const;
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virtual Ref<AudioStreamPlayback> instantiate_playback() override;
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virtual String get_stream_name() const override;
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virtual double get_length() const override;
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protected:
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static void _bind_methods();
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void _validate_property(PropertyInfo &r_property) const;
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};
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///////////////////////////////////////
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class AudioStreamPlaybackPlaylist : public AudioStreamPlayback {
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GDCLASS(AudioStreamPlaybackPlaylist, AudioStreamPlayback)
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friend class AudioStreamPlaylist;
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private:
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enum {
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MIX_BUFFER_SIZE = 128
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};
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AudioFrame mix_buffer[MIX_BUFFER_SIZE];
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AudioFrame fade_buffer[MIX_BUFFER_SIZE];
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Ref<AudioStreamPlaylist> playlist;
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Ref<AudioStreamPlayback> playback[AudioStreamPlaylist::MAX_STREAMS];
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int play_order[AudioStreamPlaylist::MAX_STREAMS] = {};
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double stream_todo = 0.0;
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int fade_index = -1;
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double fade_volume = 1.0;
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int play_index = 0;
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double offset = 0.0;
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int loop_count = 0;
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bool active = false;
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void _update_order();
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void _update_playback_instances();
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public:
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virtual void start(double p_from_pos = 0.0) override;
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virtual void stop() override;
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virtual bool is_playing() const override;
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virtual int get_loop_count() const override; // times it looped
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virtual double get_playback_position() const override;
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virtual void seek(double p_time) override;
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virtual int mix(AudioFrame *p_buffer, float p_rate_scale, int p_frames) override;
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virtual void tag_used_streams() override;
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~AudioStreamPlaybackPlaylist();
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};
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#endif // AUDIO_STREAM_PLAYLIST_H
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