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/*
* Copyright (C) 2016 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.
*/
#pragma once
#include <utils/RefBase.h>
#include <utils/Log.h>
#include "BufferPool.h"
#include "FrameInfo.h"
#include "FrameStatsObserver.h"
#include <string.h>
#include <vector>
namespace android {
namespace uirenderer {
class FrameStatsReporter {
public:
FrameStatsReporter() {
mBufferPool = new BufferPool(kBufferSize, kBufferCount);
LOG_ALWAYS_FATAL_IF(mBufferPool.get() == nullptr, "OOM: unable to allocate buffer pool");
}
void addObserver(FrameStatsObserver* observer) {
mObservers.push_back(observer);
}
bool removeObserver(FrameStatsObserver* observer) {
for (size_t i = 0; i < mObservers.size(); i++) {
if (mObservers[i].get() == observer) {
mObservers.erase(mObservers.begin() + i);
return true;
}
}
return false;
}
bool hasObservers() {
return mObservers.size() > 0;
}
void reportFrameStats(const int64_t* stats) {
BufferPool::Buffer* statsBuffer = mBufferPool->acquire();
if (statsBuffer != nullptr) {
// copy in frame stats
memcpy(statsBuffer->getBuffer(), stats, kBufferSize * sizeof(*stats));
// notify on requested threads
for (size_t i = 0; i < mObservers.size(); i++) {
mObservers[i]->notify(statsBuffer);
}
// drop our reference
statsBuffer->release();
} else {
mDroppedReports++;
}
}
int getDroppedReports() { return mDroppedReports; }
private:
static const size_t kBufferCount = 3;
static const size_t kBufferSize = static_cast<size_t>(FrameInfoIndex::NumIndexes);
std::vector< sp<FrameStatsObserver> > mObservers;
sp<BufferPool> mBufferPool;
int mDroppedReports = 0;
};
}; // namespace uirenderer
}; // namespace android
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