fune/gfx/layers/composite/Diagnostics.h
Daniel Holbert 126bd9e1a4 Bug 1412427 part 8: (automated patch) Switch a bunch of C++ files in gfx to use our standard mode lines. r=jrmuizel
This patch was generated automatically by the "modeline.py" script, available
here: https://github.com/amccreight/moz-source-tools/blob/master/modeline.py

For every file that is modified in this patch, the changes are as follows:
 (1) The patch changes the file to use the exact C++ mode lines from the
     Mozilla coding style guide, available here:
https://developer.mozilla.org/en-US/docs/Mozilla/Developer_guide/Coding_Style#Mode_Line

 (2) The patch deletes any blank lines between the mode line & the MPL
     boilerplate comment.

 (3) If the file previously had the mode lines and MPL boilerplate in a
     single contiguous C++ comment, then the patch splits them into
     separate C++ comments, to match the boilerplate in the coding style.

MozReview-Commit-ID: 77D61xpSmIl

--HG--
extra : rebase_source : c6162fa3cf539a07177a19838324bf368faa162b
2017-10-27 16:10:06 -07:00

119 lines
2.6 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_gfx_layers_composite_Diagnostics_h
#define mozilla_gfx_layers_composite_Diagnostics_h
#include "FPSCounter.h"
#include "gfxPrefs.h"
#include "mozilla/Maybe.h"
#include "mozilla/TimeStamp.h"
#include <deque>
#include <string>
#include <utility>
namespace mozilla {
namespace layers {
class PaintTiming;
class TimedMetric
{
typedef std::pair<float, TimeStamp> Entry;
public:
void Add(float aValue) {
if (mHistory.size() > kMaxHistory) {
mHistory.pop_front();
}
mHistory.push_back(Entry(aValue, TimeStamp::Now()));
}
float Average() const;
bool Empty() const {
return mHistory.empty();
}
private:
static const size_t kMaxHistory = 60;
std::deque<Entry> mHistory;
};
// These statistics are collected by layers backends, preferably by the GPU
struct GPUStats
{
GPUStats()
: mInvalidPixels(0),
mScreenPixels(0),
mPixelsFilled(0)
{}
uint32_t mInvalidPixels;
uint32_t mScreenPixels;
uint32_t mPixelsFilled;
Maybe<float> mDrawTime;
};
// Collects various diagnostics about layers performance.
class Diagnostics
{
public:
Diagnostics();
void RecordPaintTimes(const PaintTiming& aPaintTimes);
void RecordUpdateTime(float aValue) {
mUpdateMs.Add(aValue);
}
void RecordPrepareTime(float aValue) {
mPrepareMs.Add(aValue);
}
void RecordCompositeTime(float aValue) {
mCompositeMs.Add(aValue);
}
void AddTxnFrame() {
mTransactionFps.AddFrame(TimeStamp::Now());
}
std::string GetFrameOverlayString(const GPUStats& aStats);
class Record {
public:
explicit Record(TimeStamp aStart = TimeStamp()) {
if (gfxPrefs::LayersDrawFPS()) {
mStart = aStart.IsNull() ? TimeStamp::Now() : aStart;
}
}
bool Recording() const {
return !mStart.IsNull();
}
float Duration() const {
return (TimeStamp::Now() - mStart).ToMilliseconds();
}
private:
TimeStamp mStart;
};
private:
FPSCounter mCompositeFps;
FPSCounter mTransactionFps;
TimedMetric mDlbMs;
TimedMetric mDlb2Ms;
TimedMetric mFlbMs;
TimedMetric mRasterMs;
TimedMetric mSerializeMs;
TimedMetric mSendMs;
TimedMetric mUpdateMs;
TimedMetric mPrepareMs;
TimedMetric mCompositeMs;
TimedMetric mGPUDrawMs;
};
} // namespace layers
} // namespace mozilla
#endif // mozilla_gfx_layers_composite_Diagnostics_h