mirror of
https://github.com/godotengine/godot.git
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336 lines
11 KiB
C++
336 lines
11 KiB
C++
/*************************************************************************/
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/* audio_driver_opensl.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) 2007-2022 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2022 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_opensl.h"
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#include <string.h>
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#define MAX_NUMBER_INTERFACES 3
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#define MAX_NUMBER_OUTPUT_DEVICES 6
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/* Structure for passing information to callback function */
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void AudioDriverOpenSL::_buffer_callback(
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SLAndroidSimpleBufferQueueItf queueItf) {
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bool mix = true;
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if (pause) {
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mix = false;
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} else {
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mix = mutex.try_lock() == OK;
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}
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if (mix) {
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audio_server_process(buffer_size, mixdown_buffer);
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} else {
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int32_t *src_buff = mixdown_buffer;
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for (unsigned int i = 0; i < buffer_size * 2; i++) {
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src_buff[i] = 0;
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}
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}
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if (mix) {
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mutex.unlock();
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}
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const int32_t *src_buff = mixdown_buffer;
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int16_t *ptr = (int16_t *)buffers[last_free];
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last_free = (last_free + 1) % BUFFER_COUNT;
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for (unsigned int i = 0; i < buffer_size * 2; i++) {
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ptr[i] = src_buff[i] >> 16;
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}
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(*queueItf)->Enqueue(queueItf, ptr, 4 * buffer_size);
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}
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void AudioDriverOpenSL::_buffer_callbacks(
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SLAndroidSimpleBufferQueueItf queueItf,
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void *pContext) {
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AudioDriverOpenSL *ad = static_cast<AudioDriverOpenSL *>(pContext);
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ad->_buffer_callback(queueItf);
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}
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const char *AudioDriverOpenSL::get_name() const {
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return "Android";
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}
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Error AudioDriverOpenSL::init() {
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SLresult res;
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SLEngineOption EngineOption[] = {
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{ (SLuint32)SL_ENGINEOPTION_THREADSAFE, (SLuint32)SL_BOOLEAN_TRUE }
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};
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res = slCreateEngine(&sl, 1, EngineOption, 0, nullptr, nullptr);
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ERR_FAIL_COND_V_MSG(res != SL_RESULT_SUCCESS, ERR_INVALID_PARAMETER, "Could not initialize OpenSL.");
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res = (*sl)->Realize(sl, SL_BOOLEAN_FALSE);
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ERR_FAIL_COND_V_MSG(res != SL_RESULT_SUCCESS, ERR_INVALID_PARAMETER, "Could not realize OpenSL.");
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return OK;
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}
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void AudioDriverOpenSL::start() {
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active = false;
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SLresult res;
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buffer_size = 1024;
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for (int i = 0; i < BUFFER_COUNT; i++) {
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buffers[i] = memnew_arr(int16_t, buffer_size * 2);
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memset(buffers[i], 0, buffer_size * 4);
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}
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mixdown_buffer = memnew_arr(int32_t, buffer_size * 2);
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/* Callback context for the buffer queue callback function */
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/* Get the SL Engine Interface which is implicit */
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res = (*sl)->GetInterface(sl, SL_IID_ENGINE, (void *)&EngineItf);
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ERR_FAIL_COND(res != SL_RESULT_SUCCESS);
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{
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const SLInterfaceID ids[1] = { SL_IID_ENVIRONMENTALREVERB };
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const SLboolean req[1] = { SL_BOOLEAN_FALSE };
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res = (*EngineItf)->CreateOutputMix(EngineItf, &OutputMix, 0, ids, req);
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}
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ERR_FAIL_COND(res != SL_RESULT_SUCCESS);
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// Realizing the Output Mix object in synchronous mode.
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res = (*OutputMix)->Realize(OutputMix, SL_BOOLEAN_FALSE);
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ERR_FAIL_COND(res != SL_RESULT_SUCCESS);
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SLDataLocator_AndroidSimpleBufferQueue loc_bufq = { SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE, BUFFER_COUNT };
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/* Setup the format of the content in the buffer queue */
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pcm.formatType = SL_DATAFORMAT_PCM;
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pcm.numChannels = 2;
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pcm.samplesPerSec = SL_SAMPLINGRATE_44_1;
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pcm.bitsPerSample = SL_PCMSAMPLEFORMAT_FIXED_16;
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pcm.containerSize = SL_PCMSAMPLEFORMAT_FIXED_16;
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pcm.channelMask = SL_SPEAKER_FRONT_LEFT | SL_SPEAKER_FRONT_RIGHT;
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#ifdef BIG_ENDIAN_ENABLED
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pcm.endianness = SL_BYTEORDER_BIGENDIAN;
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#else
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pcm.endianness = SL_BYTEORDER_LITTLEENDIAN;
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#endif
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audioSource.pFormat = (void *)&pcm;
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audioSource.pLocator = (void *)&loc_bufq;
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/* Setup the data sink structure */
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locator_outputmix.locatorType = SL_DATALOCATOR_OUTPUTMIX;
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locator_outputmix.outputMix = OutputMix;
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audioSink.pLocator = (void *)&locator_outputmix;
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audioSink.pFormat = nullptr;
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/* Create the music player */
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{
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const SLInterfaceID ids[2] = { SL_IID_BUFFERQUEUE, SL_IID_EFFECTSEND };
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const SLboolean req[2] = { SL_BOOLEAN_TRUE, SL_BOOLEAN_TRUE };
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res = (*EngineItf)->CreateAudioPlayer(EngineItf, &player, &audioSource, &audioSink, 1, ids, req);
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ERR_FAIL_COND(res != SL_RESULT_SUCCESS);
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}
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/* Realizing the player in synchronous mode. */
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res = (*player)->Realize(player, SL_BOOLEAN_FALSE);
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ERR_FAIL_COND(res != SL_RESULT_SUCCESS);
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/* Get seek and play interfaces */
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res = (*player)->GetInterface(player, SL_IID_PLAY, (void *)&playItf);
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ERR_FAIL_COND(res != SL_RESULT_SUCCESS);
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res = (*player)->GetInterface(player, SL_IID_BUFFERQUEUE,
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(void *)&bufferQueueItf);
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ERR_FAIL_COND(res != SL_RESULT_SUCCESS);
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/* Setup to receive buffer queue event callbacks */
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res = (*bufferQueueItf)->RegisterCallback(bufferQueueItf, _buffer_callbacks, this);
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ERR_FAIL_COND(res != SL_RESULT_SUCCESS);
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last_free = 0;
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//fill up buffers
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for (int i = 0; i < BUFFER_COUNT; i++) {
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/* Enqueue a few buffers to get the ball rolling */
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res = (*bufferQueueItf)->Enqueue(bufferQueueItf, buffers[i], 4 * buffer_size); /* Size given in */
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}
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res = (*playItf)->SetPlayState(playItf, SL_PLAYSTATE_PLAYING);
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ERR_FAIL_COND(res != SL_RESULT_SUCCESS);
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active = true;
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}
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void AudioDriverOpenSL::_record_buffer_callback(SLAndroidSimpleBufferQueueItf queueItf) {
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for (int i = 0; i < rec_buffer.size(); i++) {
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int32_t sample = rec_buffer[i] << 16;
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input_buffer_write(sample);
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input_buffer_write(sample); // call twice to convert to Stereo
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}
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SLresult res = (*recordBufferQueueItf)->Enqueue(recordBufferQueueItf, rec_buffer.ptrw(), rec_buffer.size() * sizeof(int16_t));
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ERR_FAIL_COND(res != SL_RESULT_SUCCESS);
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}
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void AudioDriverOpenSL::_record_buffer_callbacks(SLAndroidSimpleBufferQueueItf queueItf, void *pContext) {
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AudioDriverOpenSL *ad = static_cast<AudioDriverOpenSL *>(pContext);
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ad->_record_buffer_callback(queueItf);
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}
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Error AudioDriverOpenSL::capture_init_device() {
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SLDataLocator_IODevice loc_dev = {
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SL_DATALOCATOR_IODEVICE,
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SL_IODEVICE_AUDIOINPUT,
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SL_DEFAULTDEVICEID_AUDIOINPUT,
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nullptr
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};
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SLDataSource recSource = { &loc_dev, nullptr };
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SLDataLocator_AndroidSimpleBufferQueue loc_bq = {
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SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE,
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2
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};
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SLDataFormat_PCM format_pcm = {
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SL_DATAFORMAT_PCM,
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1,
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SL_SAMPLINGRATE_44_1,
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SL_PCMSAMPLEFORMAT_FIXED_16,
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SL_PCMSAMPLEFORMAT_FIXED_16,
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SL_SPEAKER_FRONT_CENTER,
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SL_BYTEORDER_LITTLEENDIAN
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};
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SLDataSink recSnk = { &loc_bq, &format_pcm };
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const SLInterfaceID ids[2] = { SL_IID_ANDROIDSIMPLEBUFFERQUEUE, SL_IID_ANDROIDCONFIGURATION };
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const SLboolean req[2] = { SL_BOOLEAN_TRUE, SL_BOOLEAN_TRUE };
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SLresult res = (*EngineItf)->CreateAudioRecorder(EngineItf, &recorder, &recSource, &recSnk, 2, ids, req);
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ERR_FAIL_COND_V(res != SL_RESULT_SUCCESS, ERR_CANT_OPEN);
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res = (*recorder)->Realize(recorder, SL_BOOLEAN_FALSE);
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ERR_FAIL_COND_V(res != SL_RESULT_SUCCESS, ERR_CANT_OPEN);
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res = (*recorder)->GetInterface(recorder, SL_IID_RECORD, (void *)&recordItf);
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ERR_FAIL_COND_V(res != SL_RESULT_SUCCESS, ERR_CANT_OPEN);
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res = (*recorder)->GetInterface(recorder, SL_IID_ANDROIDSIMPLEBUFFERQUEUE, (void *)&recordBufferQueueItf);
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ERR_FAIL_COND_V(res != SL_RESULT_SUCCESS, ERR_CANT_OPEN);
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res = (*recordBufferQueueItf)->RegisterCallback(recordBufferQueueItf, _record_buffer_callbacks, this);
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ERR_FAIL_COND_V(res != SL_RESULT_SUCCESS, ERR_CANT_OPEN);
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SLuint32 state;
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res = (*recordItf)->GetRecordState(recordItf, &state);
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ERR_FAIL_COND_V(res != SL_RESULT_SUCCESS, ERR_CANT_OPEN);
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if (state != SL_RECORDSTATE_STOPPED) {
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res = (*recordItf)->SetRecordState(recordItf, SL_RECORDSTATE_STOPPED);
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ERR_FAIL_COND_V(res != SL_RESULT_SUCCESS, ERR_CANT_OPEN);
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res = (*recordBufferQueueItf)->Clear(recordBufferQueueItf);
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ERR_FAIL_COND_V(res != SL_RESULT_SUCCESS, ERR_CANT_OPEN);
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}
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const int rec_buffer_frames = 2048;
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rec_buffer.resize(rec_buffer_frames);
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input_buffer_init(rec_buffer_frames);
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res = (*recordBufferQueueItf)->Enqueue(recordBufferQueueItf, rec_buffer.ptrw(), rec_buffer.size() * sizeof(int16_t));
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ERR_FAIL_COND_V(res != SL_RESULT_SUCCESS, ERR_CANT_OPEN);
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res = (*recordItf)->SetRecordState(recordItf, SL_RECORDSTATE_RECORDING);
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ERR_FAIL_COND_V(res != SL_RESULT_SUCCESS, ERR_CANT_OPEN);
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return OK;
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}
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Error AudioDriverOpenSL::capture_start() {
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if (OS::get_singleton()->request_permission("RECORD_AUDIO")) {
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return capture_init_device();
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}
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return OK;
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}
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Error AudioDriverOpenSL::capture_stop() {
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SLuint32 state;
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SLresult res = (*recordItf)->GetRecordState(recordItf, &state);
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ERR_FAIL_COND_V(res != SL_RESULT_SUCCESS, ERR_CANT_OPEN);
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if (state != SL_RECORDSTATE_STOPPED) {
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res = (*recordItf)->SetRecordState(recordItf, SL_RECORDSTATE_STOPPED);
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ERR_FAIL_COND_V(res != SL_RESULT_SUCCESS, ERR_CANT_OPEN);
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res = (*recordBufferQueueItf)->Clear(recordBufferQueueItf);
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ERR_FAIL_COND_V(res != SL_RESULT_SUCCESS, ERR_CANT_OPEN);
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}
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return OK;
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}
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int AudioDriverOpenSL::get_mix_rate() const {
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return 44100; // hardcoded for Android, as selected by SL_SAMPLINGRATE_44_1
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}
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AudioDriver::SpeakerMode AudioDriverOpenSL::get_speaker_mode() const {
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return SPEAKER_MODE_STEREO;
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}
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void AudioDriverOpenSL::lock() {
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if (active) {
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mutex.lock();
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}
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}
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void AudioDriverOpenSL::unlock() {
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if (active) {
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mutex.unlock();
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}
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}
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void AudioDriverOpenSL::finish() {
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(*sl)->Destroy(sl);
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}
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void AudioDriverOpenSL::set_pause(bool p_pause) {
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pause = p_pause;
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if (active) {
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if (pause) {
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(*playItf)->SetPlayState(playItf, SL_PLAYSTATE_PAUSED);
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} else {
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(*playItf)->SetPlayState(playItf, SL_PLAYSTATE_PLAYING);
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}
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}
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}
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AudioDriverOpenSL::AudioDriverOpenSL() {
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}
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