/src/mozilla-central/gfx/layers/composite/Diagnostics.h
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1 | | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
2 | | /* vim: set ts=8 sts=2 et sw=2 tw=80: */ |
3 | | /* This Source Code Form is subject to the terms of the Mozilla Public |
4 | | * License, v. 2.0. If a copy of the MPL was not distributed with this |
5 | | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
6 | | |
7 | | #ifndef mozilla_gfx_layers_composite_Diagnostics_h |
8 | | #define mozilla_gfx_layers_composite_Diagnostics_h |
9 | | |
10 | | #include "FPSCounter.h" |
11 | | #include "gfxPrefs.h" |
12 | | #include "mozilla/Maybe.h" |
13 | | #include "mozilla/TimeStamp.h" |
14 | | #include <deque> |
15 | | #include <string> |
16 | | #include <utility> |
17 | | |
18 | | namespace mozilla { |
19 | | namespace layers { |
20 | | |
21 | | class PaintTiming; |
22 | | |
23 | | class TimedMetric |
24 | | { |
25 | | typedef std::pair<float, TimeStamp> Entry; |
26 | | |
27 | | public: |
28 | 0 | void Add(float aValue) { |
29 | 0 | if (mHistory.size() > kMaxHistory) { |
30 | 0 | mHistory.pop_front(); |
31 | 0 | } |
32 | 0 | mHistory.push_back(Entry(aValue, TimeStamp::Now())); |
33 | 0 | } |
34 | | |
35 | | float Average() const; |
36 | 0 | bool Empty() const { |
37 | 0 | return mHistory.empty(); |
38 | 0 | } |
39 | | |
40 | | private: |
41 | | static const size_t kMaxHistory = 60; |
42 | | |
43 | | std::deque<Entry> mHistory; |
44 | | }; |
45 | | |
46 | | // These statistics are collected by layers backends, preferably by the GPU |
47 | | struct GPUStats |
48 | | { |
49 | | GPUStats() |
50 | | : mInvalidPixels(0), |
51 | | mScreenPixels(0), |
52 | | mPixelsFilled(0) |
53 | 0 | {} |
54 | | |
55 | | uint32_t mInvalidPixels; |
56 | | uint32_t mScreenPixels; |
57 | | uint32_t mPixelsFilled; |
58 | | Maybe<float> mDrawTime; |
59 | | }; |
60 | | |
61 | | // Collects various diagnostics about layers performance. |
62 | | class Diagnostics |
63 | | { |
64 | | public: |
65 | | Diagnostics(); |
66 | | |
67 | | void RecordPaintTimes(const PaintTiming& aPaintTimes); |
68 | 0 | void RecordUpdateTime(float aValue) { |
69 | 0 | mUpdateMs.Add(aValue); |
70 | 0 | } |
71 | 0 | void RecordPrepareTime(float aValue) { |
72 | 0 | mPrepareMs.Add(aValue); |
73 | 0 | } |
74 | 0 | void RecordCompositeTime(float aValue) { |
75 | 0 | mCompositeMs.Add(aValue); |
76 | 0 | } |
77 | 0 | void AddTxnFrame() { |
78 | 0 | mTransactionFps.AddFrame(TimeStamp::Now()); |
79 | 0 | } |
80 | | |
81 | | std::string GetFrameOverlayString(const GPUStats& aStats); |
82 | | |
83 | | class Record { |
84 | | public: |
85 | 0 | explicit Record(TimeStamp aStart = TimeStamp()) { |
86 | 0 | if (gfxPrefs::LayersDrawFPS()) { |
87 | 0 | mStart = aStart.IsNull() ? TimeStamp::Now() : aStart; |
88 | 0 | } |
89 | 0 | } |
90 | 0 | bool Recording() const { |
91 | 0 | return !mStart.IsNull(); |
92 | 0 | } |
93 | 0 | float Duration() const { |
94 | 0 | return (TimeStamp::Now() - mStart).ToMilliseconds(); |
95 | 0 | } |
96 | | |
97 | | private: |
98 | | TimeStamp mStart; |
99 | | }; |
100 | | |
101 | | private: |
102 | | FPSCounter mCompositeFps; |
103 | | FPSCounter mTransactionFps; |
104 | | TimedMetric mDlbMs; |
105 | | TimedMetric mDlb2Ms; |
106 | | TimedMetric mFlbMs; |
107 | | TimedMetric mRasterMs; |
108 | | TimedMetric mSerializeMs; |
109 | | TimedMetric mSendMs; |
110 | | TimedMetric mUpdateMs; |
111 | | TimedMetric mPrepareMs; |
112 | | TimedMetric mCompositeMs; |
113 | | TimedMetric mGPUDrawMs; |
114 | | }; |
115 | | |
116 | | } // namespace layers |
117 | | } // namespace mozilla |
118 | | |
119 | | #endif // mozilla_gfx_layers_composite_Diagnostics_h |