71 lines
2.4 KiB
C++
71 lines
2.4 KiB
C++
/*
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* Copyright (C) 2021 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 "stream_buffer_cache.h"
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#include <algorithm>
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namespace android::hardware::camera::device::V3_4::implementation {
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std::shared_ptr<CachedStreamBuffer> StreamBufferCache::get(uint64_t buffer_id) {
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auto id_match =
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[buffer_id](const std::shared_ptr<CachedStreamBuffer>& buffer) {
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return buffer->bufferId() == buffer_id;
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};
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std::lock_guard<std::mutex> lock(mutex_);
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auto found = std::find_if(cache_.begin(), cache_.end(), id_match);
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return (found != cache_.end()) ? *found : nullptr;
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}
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void StreamBufferCache::remove(uint64_t buffer_id) {
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auto id_match =
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[&buffer_id](const std::shared_ptr<CachedStreamBuffer>& buffer) {
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return buffer->bufferId() == buffer_id;
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};
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std::lock_guard<std::mutex> lock(mutex_);
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cache_.erase(std::remove_if(cache_.begin(), cache_.end(), id_match));
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}
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void StreamBufferCache::update(const StreamBuffer& buffer) {
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auto id = buffer.bufferId;
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auto id_match = [id](const std::shared_ptr<CachedStreamBuffer>& buffer) {
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return buffer->bufferId() == id;
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};
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std::lock_guard<std::mutex> lock(mutex_);
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auto found = std::find_if(cache_.begin(), cache_.end(), id_match);
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if (found == cache_.end()) {
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cache_.emplace_back(std::make_shared<CachedStreamBuffer>(buffer));
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} else {
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(*found)->importFence(buffer.acquireFence);
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}
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}
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void StreamBufferCache::clear() {
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std::lock_guard<std::mutex> lock(mutex_);
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cache_.clear();
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}
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void StreamBufferCache::removeStreamsExcept(std::set<int32_t> streams_to_keep) {
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std::lock_guard<std::mutex> lock(mutex_);
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for (auto it = cache_.begin(); it != cache_.end();) {
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if (streams_to_keep.count((*it)->streamId()) == 0) {
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it = cache_.erase(it);
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} else {
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it++;
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}
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}
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}
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} // namespace android::hardware::camera::device::V3_4::implementation
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