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/**************************************************************************/
/* audio_stream_polyphonic.h */
/**************************************************************************/
/* This file is part of: */
/* REDOT ENGINE */
/* https://redotengine.org */
/**************************************************************************/
/* Copyright (c) 2024-present Redot Engine contributors */
/* (see REDOT_AUTHORS.md) */
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#ifndef AUDIO_STREAM_POLYPHONIC_H
#define AUDIO_STREAM_POLYPHONIC_H
#include "core/templates/local_vector.h"
#include "scene/scene_string_names.h"
#include "servers/audio/audio_stream.h"
#include "servers/audio_server.h"
class AudioStreamPolyphonic : public AudioStream {
GDCLASS(AudioStreamPolyphonic, AudioStream)
int polyphony = 32;
AudioServer::PlaybackType playback_type;
static void _bind_methods();
public:
virtual Ref<AudioStreamPlayback> instantiate_playback() override;
virtual String get_stream_name() const override;
virtual bool is_monophonic() const override;
void set_polyphony(int p_voices);
int get_polyphony() const;
virtual bool is_meta_stream() const override { return true; }
AudioStreamPolyphonic();
};
class AudioStreamPlaybackPolyphonic : public AudioStreamPlayback {
GDCLASS(AudioStreamPlaybackPolyphonic, AudioStreamPlayback)
constexpr static uint32_t INTERNAL_BUFFER_LEN = 128;
struct Stream {
SafeFlag active;
SafeFlag pending_play;
SafeFlag finish_request;
float play_offset = 0;
float pitch_scale = 1.0;
Ref<AudioStream> stream;
Ref<AudioStreamPlayback> stream_playback;
float prev_volume_db = 0;
float volume_db = 0;
uint32_t id = 0;
Stream() :
active(false), pending_play(false), finish_request(false) {}
};
LocalVector<Stream> streams;
AudioFrame internal_buffer[INTERNAL_BUFFER_LEN];
bool active = false;
uint32_t id_counter = 1;
bool _is_sample = false;
Ref<AudioSamplePlayback> sample_playback;
_FORCE_INLINE_ Stream *_find_stream(int64_t p_id);
friend class AudioStreamPolyphonic;
protected:
static void _bind_methods();
public:
typedef int64_t ID;
enum {
INVALID_ID = -1
};
virtual void start(double p_from_pos = 0.0) override;
virtual void stop() override;
virtual bool is_playing() const override;
virtual int get_loop_count() const override; //times it looped
virtual double get_playback_position() const override;
virtual void seek(double p_time) override;
virtual void tag_used_streams() override;
virtual int mix(AudioFrame *p_buffer, float p_rate_scale, int p_frames) override;
ID play_stream(const Ref<AudioStream> &p_stream, float p_from_offset = 0, float p_volume_db = 0, float p_pitch_scale = 1.0, AudioServer::PlaybackType p_playback_type = AudioServer::PlaybackType::PLAYBACK_TYPE_DEFAULT, const StringName &p_bus = SceneStringName(Master));
void set_stream_volume(ID p_stream_id, float p_volume_db);
void set_stream_pitch_scale(ID p_stream_id, float p_pitch_scale);
bool is_stream_playing(ID p_stream_id) const;
void stop_stream(ID p_stream_id);
virtual void set_is_sample(bool p_is_sample) override;
virtual bool get_is_sample() const override;
virtual Ref<AudioSamplePlayback> get_sample_playback() const override;
virtual void set_sample_playback(const Ref<AudioSamplePlayback> &p_playback) override;
private:
#ifndef DISABLE_DEPRECATED
ID _play_stream_bind_compat_91382(const Ref<AudioStream> &p_stream, float p_from_offset = 0, float p_volume_db = 0, float p_pitch_scale = 1.0);
static void _bind_compatibility_methods();
#endif // DISABLE_DEPRECATED
public:
AudioStreamPlaybackPolyphonic();
};
#endif // AUDIO_STREAM_POLYPHONIC_H
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