mirror of
https://github.com/godotengine/godot.git
synced 2024-12-21 10:25:24 +08:00
b5334d14f7
Happy new year to the wonderful Godot community!
2020 has been a tough year for most of us personally, but a good year for
Godot development nonetheless with a huge amount of work done towards Godot
4.0 and great improvements backported to the long-lived 3.2 branch.
We've had close to 400 contributors to engine code this year, authoring near
7,000 commit! (And that's only for the `master` branch and for the engine code,
there's a lot more when counting docs, demos and other first-party repos.)
Here's to a great year 2021 for all Godot users 🎆
73 lines
3.4 KiB
C++
73 lines
3.4 KiB
C++
/*************************************************************************/
|
|
/* audio_effect_amplify.cpp */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
|
|
/* */
|
|
/* 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. */
|
|
/*************************************************************************/
|
|
|
|
#include "audio_effect_amplify.h"
|
|
|
|
void AudioEffectAmplifyInstance::process(const AudioFrame *p_src_frames, AudioFrame *p_dst_frames, int p_frame_count) {
|
|
//multiply volume interpolating to avoid clicks if this changes
|
|
float volume_db = base->volume_db;
|
|
float vol = Math::db2linear(mix_volume_db);
|
|
float vol_inc = (Math::db2linear(volume_db) - vol) / float(p_frame_count);
|
|
|
|
for (int i = 0; i < p_frame_count; i++) {
|
|
p_dst_frames[i] = p_src_frames[i] * vol;
|
|
vol += vol_inc;
|
|
}
|
|
//set volume for next mix
|
|
mix_volume_db = volume_db;
|
|
}
|
|
|
|
Ref<AudioEffectInstance> AudioEffectAmplify::instance() {
|
|
Ref<AudioEffectAmplifyInstance> ins;
|
|
ins.instance();
|
|
ins->base = Ref<AudioEffectAmplify>(this);
|
|
ins->mix_volume_db = volume_db;
|
|
return ins;
|
|
}
|
|
|
|
void AudioEffectAmplify::set_volume_db(float p_volume) {
|
|
volume_db = p_volume;
|
|
}
|
|
|
|
float AudioEffectAmplify::get_volume_db() const {
|
|
return volume_db;
|
|
}
|
|
|
|
void AudioEffectAmplify::_bind_methods() {
|
|
ClassDB::bind_method(D_METHOD("set_volume_db", "volume"), &AudioEffectAmplify::set_volume_db);
|
|
ClassDB::bind_method(D_METHOD("get_volume_db"), &AudioEffectAmplify::get_volume_db);
|
|
|
|
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "volume_db", PROPERTY_HINT_RANGE, "-80,24,0.01"), "set_volume_db", "get_volume_db");
|
|
}
|
|
|
|
AudioEffectAmplify::AudioEffectAmplify() {
|
|
volume_db = 0;
|
|
}
|