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43 lines
1.3 KiB
C++
43 lines
1.3 KiB
C++
// Copyright 2014 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef WebBeginFrameArgs_h
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#define WebBeginFrameArgs_h
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namespace blink {
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struct WebBeginFrameArgs {
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WebBeginFrameArgs(double lastFrameTimeMonotonic, double deadline, double interval)
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: lastFrameTimeMonotonic(lastFrameTimeMonotonic)
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, deadline(deadline)
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, interval(interval)
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{ }
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// TODO: Remove this constructor once Chromium has been updated.
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WebBeginFrameArgs(double lastFrameTimeMonotonic)
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: lastFrameTimeMonotonic(lastFrameTimeMonotonic)
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, deadline(0)
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, interval(0)
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{ }
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// FIXME: Upgrade the time in CLOCK_MONOTONIC values to use a TimeTick like
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// class rather than a bare double.
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// FIXME: Extend this class to include the fields from Chrome
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// BeginFrameArgs structure.
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// Time in CLOCK_MONOTONIC that is the most recent vsync time.
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double lastFrameTimeMonotonic;
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// Time in CLOCK_MONOTONIC by which the renderer should finish producing the current frame. 0 means a deadline wasn't set.
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double deadline;
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// Expected delta between two successive frame times. 0 if a regular interval isn't available.
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double interval;
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};
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} // namespace blink
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#endif
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