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/*
* Copyright (C) 2017 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/Macros.h"
#include <utils/Timers.h>
#include <array>
#include <functional>
#include <tuple>
namespace android {
namespace uirenderer {
enum JankType {
kMissedVsync = 0,
kHighInputLatency,
kSlowUI,
kSlowSync,
kSlowRT,
kMissedDeadline,
// must be last
NUM_BUCKETS,
};
// For testing
class MockProfileData;
// Try to keep as small as possible, should match ASHMEM_SIZE in
// GraphicsStatsService.java
class ProfileData {
PREVENT_COPY_AND_ASSIGN(ProfileData);
public:
ProfileData() { reset(); }
void reset();
void mergeWith(const ProfileData& other);
void dump(int fd) const;
uint32_t findPercentile(int percentile) const;
void reportFrame(int64_t duration);
void reportJank() { mJankFrameCount++; }
void reportJankType(JankType type) { mJankTypeCounts[static_cast<int>(type)]++; }
uint32_t totalFrameCount() const { return mTotalFrameCount; }
uint32_t jankFrameCount() const { return mJankFrameCount; }
nsecs_t statsStartTime() const { return mStatStartTime; }
uint32_t jankTypeCount(JankType type) const { return mJankTypeCounts[static_cast<int>(type)]; }
struct HistogramEntry {
uint32_t renderTimeMs;
uint32_t frameCount;
};
void histogramForEach(const std::function<void(HistogramEntry)>& callback) const;
constexpr static int HistogramSize() {
return std::tuple_size<decltype(ProfileData::mFrameCounts)>::value +
std::tuple_size<decltype(ProfileData::mSlowFrameCounts)>::value;
}
// Visible for testing
static uint32_t frameTimeForFrameCountIndex(uint32_t index);
static uint32_t frameTimeForSlowFrameCountIndex(uint32_t index);
private:
// Open our guts up to unit tests
friend class MockProfileData;
std::array<uint32_t, NUM_BUCKETS> mJankTypeCounts;
// See comments on kBucket* constants for what this holds
std::array<uint32_t, 57> mFrameCounts;
// Holds a histogram of frame times in 50ms increments from 150ms to 5s
std::array<uint16_t, 97> mSlowFrameCounts;
uint32_t mTotalFrameCount;
uint32_t mJankFrameCount;
nsecs_t mStatStartTime;
};
// For testing
class MockProfileData : public ProfileData {
public:
std::array<uint32_t, NUM_BUCKETS>& editJankTypeCounts() { return mJankTypeCounts; }
std::array<uint32_t, 57>& editFrameCounts() { return mFrameCounts; }
std::array<uint16_t, 97>& editSlowFrameCounts() { return mSlowFrameCounts; }
uint32_t& editTotalFrameCount() { return mTotalFrameCount; }
uint32_t& editJankFrameCount() { return mJankFrameCount; }
nsecs_t& editStatStartTime() { return mStatStartTime; }
};
} /* namespace uirenderer */
} /* namespace android */
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