blob: 7bc90794e0e21cb9e587f6a8f1cebe3fdd9edb6f [file] [log] [blame]
/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "audio_utils_fifo_wrapper"
// #define LOG_NDEBUG 0
#include <stdint.h>
#include <errno.h>
#include <log/log.h>
#include <audio_utils/fifo.h>
#include "fifo_wrapper.h"
struct audio_fifo_itfe {
audio_utils_fifo *p_fifo;
audio_utils_fifo_reader *p_fifo_reader;
audio_utils_fifo_writer *p_fifo_writer;
int8_t *p_buffer;
};
void *fifo_init(uint32_t bytes, bool reader_throttles_writer) {
struct audio_fifo_itfe *interface = new struct audio_fifo_itfe;
interface->p_buffer = new int8_t[bytes];
if (interface->p_buffer == NULL) {
ALOGE("Failed to allocate fifo buffer!");
return NULL;
}
interface->p_fifo = new audio_utils_fifo(bytes, 1, interface->p_buffer, reader_throttles_writer);
interface->p_fifo_writer = new audio_utils_fifo_writer(*interface->p_fifo);
interface->p_fifo_reader = new audio_utils_fifo_reader(*interface->p_fifo);
return (void *)interface;
}
void fifo_release(void *fifo_itfe) {
struct audio_fifo_itfe *interface = static_cast<struct audio_fifo_itfe *>(fifo_itfe);
delete interface->p_fifo_writer;
delete interface->p_fifo_reader;
delete interface->p_fifo;
delete[] interface->p_buffer;
delete interface;
}
ssize_t fifo_read(void *fifo_itfe, void *buffer, size_t bytes) {
struct audio_fifo_itfe *interface = static_cast<struct audio_fifo_itfe *>(fifo_itfe);
return interface->p_fifo_reader->read(buffer, bytes);
}
ssize_t fifo_write(void *fifo_itfe, void *buffer, size_t bytes) {
struct audio_fifo_itfe *interface = static_cast<struct audio_fifo_itfe *>(fifo_itfe);
return interface->p_fifo_writer->write(buffer, bytes);
}
ssize_t fifo_available_to_read(void *fifo_itfe) {
struct audio_fifo_itfe *interface = static_cast<struct audio_fifo_itfe *>(fifo_itfe);
return interface->p_fifo_reader->available();
}
ssize_t fifo_available_to_write(void *fifo_itfe) {
struct audio_fifo_itfe *interface = static_cast<struct audio_fifo_itfe *>(fifo_itfe);
return interface->p_fifo_writer->available();
}
ssize_t fifo_flush(void *fifo_itfe) {
struct audio_fifo_itfe *interface = static_cast<struct audio_fifo_itfe *>(fifo_itfe);
return interface->p_fifo_reader->flush();
}