90c7102b51
Each driver used to define the (same) project settings values `audio/mix_rate` and `audio/output_latency`, but the setting names are not driver specific. Overriding is still possible via platform tags.
136 lines
4.4 KiB
C++
136 lines
4.4 KiB
C++
/*************************************************************************/
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/* audio_driver_media_kit.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_media_kit.h"
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#ifdef MEDIA_KIT_ENABLED
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#include "core/project_settings.h"
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int32_t *AudioDriverMediaKit::samples_in = nullptr;
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Error AudioDriverMediaKit::init() {
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active = false;
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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_size = next_power_of_2(latency * mix_rate / 1000);
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samples_in = memnew_arr(int32_t, buffer_size * channels);
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media_raw_audio_format format;
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format = media_raw_audio_format::wildcard;
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format.frame_rate = mix_rate;
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format.channel_count = channels;
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format.format = media_raw_audio_format::B_AUDIO_INT;
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format.byte_order = B_MEDIA_LITTLE_ENDIAN;
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format.buffer_size = buffer_size * sizeof(int32_t) * channels;
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player = new BSoundPlayer(
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&format,
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"godot_sound_server",
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AudioDriverMediaKit::PlayBuffer,
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nullptr,
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this);
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if (player->InitCheck() != B_OK) {
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fprintf(stderr, "MediaKit ERR: can not create a BSoundPlayer instance\n");
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ERR_FAIL_COND_V(player == nullptr, ERR_CANT_OPEN);
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}
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player->Start();
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return OK;
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}
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void AudioDriverMediaKit::PlayBuffer(void *cookie, void *buffer, size_t size, const media_raw_audio_format &format) {
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AudioDriverMediaKit *ad = (AudioDriverMediaKit *)cookie;
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int32_t *buf = (int32_t *)buffer;
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if (!ad->active) {
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for (unsigned int i = 0; i < ad->buffer_size * ad->channels; i++) {
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AudioDriverMediaKit::samples_in[i] = 0;
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}
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} else {
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ad->lock();
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ad->audio_server_process(ad->buffer_size, AudioDriverMediaKit::samples_in);
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ad->unlock();
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}
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for (unsigned int i = 0; i < ad->buffer_size * ad->channels; i++) {
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buf[i] = AudioDriverMediaKit::samples_in[i];
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}
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}
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void AudioDriverMediaKit::start() {
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active = true;
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}
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int AudioDriverMediaKit::get_mix_rate() const {
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return mix_rate;
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}
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AudioDriverMediaKit::SpeakerMode AudioDriverMediaKit::get_speaker_mode() const {
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return speaker_mode;
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}
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void AudioDriverMediaKit::lock() {
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if (!mutex)
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return;
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mutex.lock();
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}
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void AudioDriverMediaKit::unlock() {
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if (!mutex)
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return;
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mutex.unlock();
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}
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void AudioDriverMediaKit::finish() {
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delete player;
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if (samples_in) {
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memdelete_arr(samples_in);
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};
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}
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AudioDriverMediaKit::AudioDriverMediaKit() {
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player = nullptr;
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}
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AudioDriverMediaKit::~AudioDriverMediaKit() {
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}
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#endif
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