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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 <cmath> | 10 #include <cmath> |
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| 123 double CCFrameRateCounter::timeStampOfRecentFrame(int n) | 123 double CCFrameRateCounter::timeStampOfRecentFrame(int n) |
| 124 { | 124 { |
| 125 ASSERT(n >= 0 && n < kTimeStampHistorySize); | 125 ASSERT(n >= 0 && n < kTimeStampHistorySize); |
| 126 int desiredIndex = (frameIndex(m_currentFrameNumber) + n) % kTimeStampHistor
ySize; | 126 int desiredIndex = (frameIndex(m_currentFrameNumber) + n) % kTimeStampHistor
ySize; |
| 127 return m_timeStampHistory[desiredIndex]; | 127 return m_timeStampHistory[desiredIndex]; |
| 128 } | 128 } |
| 129 | 129 |
| 130 } // namespace cc | 130 } // namespace cc |
| 131 | 131 |
| 132 #endif // USE(ACCELERATED_COMPOSITING) | 132 #endif // USE(ACCELERATED_COMPOSITING) |
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