mirror of
https://github.com/godotengine/godot.git
synced 2024-12-27 11:24:59 +08:00
4383b5ab1e
* Make AudioStreamPolyphonic not requre a polling thread (simpler, faster) * Improve error reporting in AudioStreamPlayer*::get_stream_playback() error reporting to improve usability.
120 lines
4.4 KiB
C++
120 lines
4.4 KiB
C++
/**************************************************************************/
|
|
/* audio_stream_polyphonic.h */
|
|
/**************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/**************************************************************************/
|
|
/* 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 "servers/audio/audio_stream.h"
|
|
|
|
class AudioStreamPolyphonic : public AudioStream {
|
|
GDCLASS(AudioStreamPolyphonic, AudioStream)
|
|
int polyphony = 32;
|
|
|
|
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;
|
|
|
|
AudioStreamPolyphonic();
|
|
};
|
|
|
|
class AudioStreamPlaybackPolyphonic : public AudioStreamPlayback {
|
|
GDCLASS(AudioStreamPlaybackPolyphonic, AudioStreamPlayback)
|
|
|
|
enum {
|
|
INTERNAL_BUFFER_LEN = 128,
|
|
ID_MASK = 0xFFFFFFFF,
|
|
INDEX_SHIFT = 32
|
|
};
|
|
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;
|
|
|
|
_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);
|
|
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);
|
|
|
|
AudioStreamPlaybackPolyphonic();
|
|
};
|
|
|
|
#endif // AUDIO_STREAM_POLYPHONIC_H
|