92031098bf
Each driver used to define the (same) project settings value, but the
setting names are not driver specific. Ovverriding is still possible via
platform tags.
(cherry picked from commit 90c7102b51)
136 lines
3.9 KiB
C++
136 lines
3.9 KiB
C++
/*************************************************************************/
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/* audio_driver_dummy.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) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
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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_driver_dummy.h"
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#include "core/os/os.h"
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#include "core/project_settings.h"
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Error AudioDriverDummy::init() {
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active = false;
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thread_exited = false;
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exit_thread = false;
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samples_in = NULL;
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mix_rate = GLOBAL_GET("audio/mix_rate");
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speaker_mode = SPEAKER_MODE_STEREO;
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channels = 2;
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int latency = GLOBAL_GET("audio/output_latency");
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buffer_frames = closest_power_of_2(latency * mix_rate / 1000);
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samples_in = memnew_arr(int32_t, buffer_frames * channels);
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mutex = Mutex::create();
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thread = Thread::create(AudioDriverDummy::thread_func, this);
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return OK;
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};
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void AudioDriverDummy::thread_func(void *p_udata) {
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AudioDriverDummy *ad = (AudioDriverDummy *)p_udata;
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uint64_t usdelay = (ad->buffer_frames / float(ad->mix_rate)) * 1000000;
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while (!ad->exit_thread) {
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if (ad->active) {
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ad->lock();
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ad->audio_server_process(ad->buffer_frames, ad->samples_in);
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ad->unlock();
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};
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OS::get_singleton()->delay_usec(usdelay);
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};
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ad->thread_exited = true;
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};
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void AudioDriverDummy::start() {
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active = true;
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};
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int AudioDriverDummy::get_mix_rate() const {
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return mix_rate;
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};
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AudioDriver::SpeakerMode AudioDriverDummy::get_speaker_mode() const {
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return speaker_mode;
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};
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void AudioDriverDummy::lock() {
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if (!thread || !mutex)
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return;
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mutex->lock();
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};
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void AudioDriverDummy::unlock() {
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if (!thread || !mutex)
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return;
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mutex->unlock();
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};
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void AudioDriverDummy::finish() {
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if (!thread)
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return;
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exit_thread = true;
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Thread::wait_to_finish(thread);
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if (samples_in) {
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memdelete_arr(samples_in);
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};
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memdelete(thread);
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if (mutex)
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memdelete(mutex);
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thread = NULL;
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};
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AudioDriverDummy::AudioDriverDummy() {
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mutex = NULL;
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thread = NULL;
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};
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AudioDriverDummy::~AudioDriverDummy(){
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};
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