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Side by Side Diff: cc/CCFrameRateCounter.cpp

Issue 10914268: Change cc files from namespace WebCore to cc (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Rebased Created 8 years, 3 months ago
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1 // Copyright 2012 The Chromium Authors. All rights reserved. 1 // Copyright 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "config.h" 5 #include "config.h"
6 6
7 #if USE(ACCELERATED_COMPOSITING) 7 #if USE(ACCELERATED_COMPOSITING)
8 #include "CCFrameRateCounter.h" 8 #include "CCFrameRateCounter.h"
9 9
10 #include "CCProxy.h" 10 #include "CCProxy.h"
11 #include <public/Platform.h> 11 #include <public/Platform.h>
12 #include <wtf/CurrentTime.h> 12 #include <wtf/CurrentTime.h>
13 13
14 namespace WebCore { 14 namespace cc {
15 15
16 const double CCFrameRateCounter::kFrameTooFast = 1.0 / 70.0; // measured in seco nds 16 const double CCFrameRateCounter::kFrameTooFast = 1.0 / 70.0; // measured in seco nds
17 const double CCFrameRateCounter::kFrameTooSlow = 1.0 / 12.0; 17 const double CCFrameRateCounter::kFrameTooSlow = 1.0 / 12.0;
18 const double CCFrameRateCounter::kDroppedFrameTime = 1.0 / 50.0; 18 const double CCFrameRateCounter::kDroppedFrameTime = 1.0 / 50.0;
19 19
20 // safeMod works on -1, returning m-1 in that case. 20 // safeMod works on -1, returning m-1 in that case.
21 static inline int safeMod(int number, int modulus) 21 static inline int safeMod(int number, int modulus)
22 { 22 {
23 return (number + modulus) % modulus; 23 return (number + modulus) % modulus;
24 } 24 }
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118 standardDeviation = sqrt(fpsVarianceNumerator / averageFPSCount); 118 standardDeviation = sqrt(fpsVarianceNumerator / averageFPSCount);
119 } 119 }
120 120
121 double CCFrameRateCounter::timeStampOfRecentFrame(int n) 121 double CCFrameRateCounter::timeStampOfRecentFrame(int n)
122 { 122 {
123 ASSERT(n >= 0 && n < kTimeStampHistorySize); 123 ASSERT(n >= 0 && n < kTimeStampHistorySize);
124 int desiredIndex = (frameIndex(m_currentFrameNumber) + n) % kTimeStampHistor ySize; 124 int desiredIndex = (frameIndex(m_currentFrameNumber) + n) % kTimeStampHistor ySize;
125 return m_timeStampHistory[desiredIndex]; 125 return m_timeStampHistory[desiredIndex];
126 } 126 }
127 127
128 } // namespace WebCore 128 } // namespace cc
129 129
130 #endif // USE(ACCELERATED_COMPOSITING) 130 #endif // USE(ACCELERATED_COMPOSITING)
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