diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /gfx/layers/apz/src/PotentialCheckerboardDurationTracker.h | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gfx/layers/apz/src/PotentialCheckerboardDurationTracker.h')
-rw-r--r-- | gfx/layers/apz/src/PotentialCheckerboardDurationTracker.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/gfx/layers/apz/src/PotentialCheckerboardDurationTracker.h b/gfx/layers/apz/src/PotentialCheckerboardDurationTracker.h new file mode 100644 index 0000000000..58786f32af --- /dev/null +++ b/gfx/layers/apz/src/PotentialCheckerboardDurationTracker.h @@ -0,0 +1,61 @@ +/* -*- 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_layers_PotentialCheckerboardDurationTracker_h +#define mozilla_layers_PotentialCheckerboardDurationTracker_h + +#include "mozilla/TimeStamp.h" + +namespace mozilla { +namespace layers { + +/** + * This class allows the owner to track the duration of time considered + * "potentially checkerboarding". This is the union of two possibly-intersecting + * sets of time periods. The first set is that in which checkerboarding was + * actually happening, since by definition it could potentially be happening. + * The second set is that in which the APZC is actively transforming content + * in the compositor, since it could potentially transform it so as to display + * checkerboarding to the user. + * The caller of this class calls the appropriate methods to indicate the start + * and stop of these two sets, and this class manages accumulating the union + * of the various durations. + */ +class PotentialCheckerboardDurationTracker { + public: + PotentialCheckerboardDurationTracker(); + + /** + * This should be called if checkerboarding is encountered. It can be called + * multiple times during a checkerboard event. + */ + void CheckerboardSeen(); + /** + * This should be called when checkerboarding is done. It must have been + * preceded by one or more calls to CheckerboardSeen(). + */ + void CheckerboardDone(bool aRecordTelemetry); + + /** + * This should be called at composition time, to indicate if the APZC is in + * a transforming state or not. + */ + void InTransform(bool aInTransform, bool aRecordTelemetry); + + private: + bool Tracking() const; + + private: + bool mInCheckerboard; + bool mInTransform; + + TimeStamp mCurrentPeriodStart; +}; + +} // namespace layers +} // namespace mozilla + +#endif // mozilla_layers_PotentialCheckerboardDurationTracker_h |