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/*
* Copyright (C) 2015 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.
*/
#ifndef JANKTRACKER_H_
#define JANKTRACKER_H_
#include "FrameInfo.h"
#include "ProfileData.h"
#include "ProfileDataContainer.h"
#include "renderthread/TimeLord.h"
#include "utils/RingBuffer.h"
#include <cutils/compiler.h>
#include <ui/DisplayInfo.h>
#include <array>
#include <memory>
namespace android {
namespace uirenderer {
enum class JankTrackerType {
// The default, means there's no description set
Generic,
// The profile data represents a package
Package,
// The profile data is for a specific window
Window,
};
// Metadata about the ProfileData being collected
struct ProfileDataDescription {
JankTrackerType type;
std::string name;
};
// TODO: Replace DrawProfiler with this
class JankTracker {
public:
explicit JankTracker(ProfileDataContainer* globalData, const DisplayInfo& displayInfo);
void setDescription(JankTrackerType type, const std::string&& name) {
mDescription.type = type;
mDescription.name = name;
}
FrameInfo* startFrame() { return &mFrames.next(); }
void finishFrame(const FrameInfo& frame);
void dumpStats(int fd) { dumpData(fd, &mDescription, mData.get()); }
void dumpFrames(int fd);
void reset();
// Exposed for FrameInfoVisualizer
// TODO: Figure out a better way to handle this
RingBuffer<FrameInfo, 120>& frames() { return mFrames; }
private:
void setFrameInterval(nsecs_t frameIntervalNanos);
static void dumpData(int fd, const ProfileDataDescription* description,
const ProfileData* data);
std::array<int64_t, NUM_BUCKETS> mThresholds;
int64_t mFrameInterval;
nsecs_t mSwapDeadline;
// The amount of time we will erase from the total duration to account
// for SF vsync offsets with HWC2 blocking dequeueBuffers.
// (Vsync + mDequeueBlockTolerance) is the point at which we expect
// SF to have released the buffer normally, so we will forgive up to that
// point in time by comparing to (IssueDrawCommandsStart + DequeueDuration)
// This is only used if we are in pipelined mode and are using HWC2,
// otherwise it's 0.
nsecs_t mDequeueTimeForgiveness = 0;
ProfileDataContainer mData;
ProfileDataContainer* mGlobalData;
ProfileDataDescription mDescription;
// Ring buffer large enough for 2 seconds worth of frames
RingBuffer<FrameInfo, 120> mFrames;
};
} /* namespace uirenderer */
} /* namespace android */
#endif /* JANKTRACKER_H_ */
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