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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 FRAMEINFO_H_
#define FRAMEINFO_H_
#include "utils/Macros.h"
#include <cutils/compiler.h>
#include <utils/Timers.h>
#include <array>
#include <memory.h>
#include <string>
namespace android {
namespace uirenderer {
static constexpr size_t UI_THREAD_FRAME_INFO_SIZE = 12;
enum class FrameInfoIndex {
Flags = 0,
FrameTimelineVsyncId,
IntendedVsync,
Vsync,
InputEventId,
HandleInputStart,
AnimationStart,
PerformTraversalsStart,
DrawStart,
FrameDeadline,
FrameStartTime,
FrameInterval,
// End of UI frame info
SyncQueued,
SyncStart,
IssueDrawCommandsStart,
SwapBuffers,
FrameCompleted,
DequeueBufferDuration,
QueueBufferDuration,
GpuCompleted,
SwapBuffersCompleted,
DisplayPresentTime,
// Must be the last value!
// Also must be kept in sync with FrameMetrics.java#FRAME_STATS_COUNT
NumIndexes
};
extern const std::array<const char*, static_cast<int>(FrameInfoIndex::NumIndexes)> FrameInfoNames;
namespace FrameInfoFlags {
enum {
WindowLayoutChanged = 1 << 0,
RTAnimation = 1 << 1,
SurfaceCanvas = 1 << 2,
SkippedFrame = 1 << 3,
};
};
class UiFrameInfoBuilder {
public:
static constexpr int64_t INVALID_VSYNC_ID = -1;
static constexpr int64_t UNKNOWN_DEADLINE = std::numeric_limits<int64_t>::max();
static constexpr int64_t UNKNOWN_FRAME_INTERVAL = -1;
explicit UiFrameInfoBuilder(int64_t* buffer) : mBuffer(buffer) {
memset(mBuffer, 0, UI_THREAD_FRAME_INFO_SIZE * sizeof(int64_t));
set(FrameInfoIndex::FrameTimelineVsyncId) = INVALID_VSYNC_ID;
// The struct is zeroed by memset above. That also sets FrameInfoIndex::InputEventId to
// equal android::os::IInputConstants::INVALID_INPUT_EVENT_ID == 0.
// Therefore, we can skip setting the value for InputEventId here. If the value for
// INVALID_INPUT_EVENT_ID changes, this code would have to be updated, as well.
set(FrameInfoIndex::FrameDeadline) = std::numeric_limits<int64_t>::max();
}
UiFrameInfoBuilder& setVsync(nsecs_t vsyncTime, nsecs_t intendedVsync,
int64_t vsyncId, int64_t frameDeadline, nsecs_t frameInterval) {
set(FrameInfoIndex::FrameTimelineVsyncId) = vsyncId;
set(FrameInfoIndex::Vsync) = vsyncTime;
set(FrameInfoIndex::IntendedVsync) = intendedVsync;
// Pretend the other fields are all at vsync, too, so that naive
// duration calculations end up being 0 instead of very large
set(FrameInfoIndex::HandleInputStart) = vsyncTime;
set(FrameInfoIndex::AnimationStart) = vsyncTime;
set(FrameInfoIndex::PerformTraversalsStart) = vsyncTime;
set(FrameInfoIndex::DrawStart) = vsyncTime;
set(FrameInfoIndex::FrameDeadline) = frameDeadline;
set(FrameInfoIndex::FrameInterval) = frameInterval;
return *this;
}
UiFrameInfoBuilder& addFlag(int frameInfoFlag) {
set(FrameInfoIndex::Flags) |= static_cast<uint64_t>(frameInfoFlag);
return *this;
}
private:
inline int64_t& set(FrameInfoIndex index) { return mBuffer[static_cast<int>(index)]; }
int64_t* mBuffer;
};
class FrameInfo {
public:
void importUiThreadInfo(int64_t* info);
void markSyncStart() { set(FrameInfoIndex::SyncStart) = systemTime(SYSTEM_TIME_MONOTONIC); }
void markIssueDrawCommandsStart() {
set(FrameInfoIndex::IssueDrawCommandsStart) = systemTime(SYSTEM_TIME_MONOTONIC);
}
void markSwapBuffers() { set(FrameInfoIndex::SwapBuffers) = systemTime(SYSTEM_TIME_MONOTONIC); }
void markSwapBuffersCompleted() {
set(FrameInfoIndex::SwapBuffersCompleted) = systemTime(SYSTEM_TIME_MONOTONIC);
}
void markFrameCompleted() { set(FrameInfoIndex::FrameCompleted) = systemTime(SYSTEM_TIME_MONOTONIC); }
void addFlag(int frameInfoFlag) {
set(FrameInfoIndex::Flags) |= static_cast<uint64_t>(frameInfoFlag);
}
const int64_t* data() const { return mFrameInfo; }
inline int64_t operator[](FrameInfoIndex index) const { return get(index); }
inline int64_t operator[](int index) const {
if (index < 0 || index >= static_cast<int>(FrameInfoIndex::NumIndexes)) return 0;
return mFrameInfo[index];
}
inline int64_t duration(FrameInfoIndex start, FrameInfoIndex end) const {
int64_t endtime = get(end);
int64_t starttime = get(start);
int64_t gap = endtime - starttime;
gap = starttime > 0 ? gap : 0;
if (end > FrameInfoIndex::SyncQueued && start < FrameInfoIndex::SyncQueued) {
// Need to subtract out the time spent in a stalled state
// as this will be captured by the previous frame's info
int64_t offset = get(FrameInfoIndex::SyncStart) - get(FrameInfoIndex::SyncQueued);
if (offset > 0) {
gap -= offset;
}
}
return gap > 0 ? gap : 0;
}
inline int64_t totalDuration() const {
return duration(FrameInfoIndex::IntendedVsync, FrameInfoIndex::FrameCompleted);
}
inline int64_t gpuDrawTime() const {
// GPU start time is approximated to the moment before swapBuffer is invoked.
// We could add an EGLSyncKHR fence at the beginning of the frame, but that is an overhead.
int64_t endTime = get(FrameInfoIndex::GpuCompleted);
return endTime > 0 ? endTime - get(FrameInfoIndex::SwapBuffers) : -1;
}
inline int64_t& set(FrameInfoIndex index) { return mFrameInfo[static_cast<int>(index)]; }
inline int64_t get(FrameInfoIndex index) const {
if (index == FrameInfoIndex::NumIndexes) return 0;
return mFrameInfo[static_cast<int>(index)];
}
private:
int64_t mFrameInfo[static_cast<int>(FrameInfoIndex::NumIndexes)];
};
} /* namespace uirenderer */
} /* namespace android */
#endif /* FRAMEINFO_H_ */
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