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91 lines
2.7 KiB
91 lines
2.7 KiB
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "AudioBufferManager.h"
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#include <atomic>
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#include <hidlmemory/mapping.h>
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namespace android {
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ANDROID_SINGLETON_STATIC_INSTANCE(AudioBufferManager);
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bool AudioBufferManager::wrap(const AudioBuffer& buffer, sp<AudioBufferWrapper>* wrapper) {
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// Check if we have this buffer already
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std::lock_guard<std::mutex> lock(mLock);
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ssize_t idx = mBuffers.indexOfKey(buffer.id);
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if (idx >= 0) {
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*wrapper = mBuffers[idx].promote();
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if (*wrapper != nullptr) {
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(*wrapper)->getHalBuffer()->frameCount = buffer.frameCount;
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return true;
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}
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mBuffers.removeItemsAt(idx);
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}
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// Need to create and init a new AudioBufferWrapper.
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sp<AudioBufferWrapper> tempBuffer(new AudioBufferWrapper(buffer));
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if (!tempBuffer->init()) return false;
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*wrapper = tempBuffer;
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mBuffers.add(buffer.id, *wrapper);
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return true;
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}
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void AudioBufferManager::removeEntry(uint64_t id) {
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std::lock_guard<std::mutex> lock(mLock);
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ssize_t idx = mBuffers.indexOfKey(id);
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if (idx >= 0) mBuffers.removeItemsAt(idx);
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}
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namespace hardware {
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namespace audio {
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namespace effect {
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namespace CPP_VERSION {
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namespace implementation {
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AudioBufferWrapper::AudioBufferWrapper(const AudioBuffer& buffer)
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: mHidlBuffer(buffer), mHalBuffer{0, {nullptr}} {}
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AudioBufferWrapper::~AudioBufferWrapper() {
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AudioBufferManager::getInstance().removeEntry(mHidlBuffer.id);
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}
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bool AudioBufferWrapper::init() {
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if (mHalBuffer.raw != nullptr) {
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ALOGE("An attempt to init AudioBufferWrapper twice");
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return false;
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}
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mHidlMemory = mapMemory(mHidlBuffer.data);
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if (mHidlMemory == nullptr) {
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ALOGE("Could not map HIDL memory to IMemory");
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return false;
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}
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mHalBuffer.raw = static_cast<void*>(mHidlMemory->getPointer());
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if (mHalBuffer.raw == nullptr) {
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ALOGE("IMemory buffer pointer is null");
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return false;
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}
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mHalBuffer.frameCount = mHidlBuffer.frameCount;
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return true;
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}
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} // namespace implementation
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} // namespace CPP_VERSION
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} // namespace effect
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} // namespace audio
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} // namespace hardware
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} // namespace android
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