зеркало из https://github.com/mozilla/gecko-dev.git
48 строки
1.6 KiB
C++
48 строки
1.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_LayerTimelineMarker_h_
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#define mozilla_LayerTimelineMarker_h_
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#include "TimelineMarker.h"
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#include "mozilla/dom/ProfileTimelineMarkerBinding.h"
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#include "mozilla/mozalloc_oom.h"
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#include "nsRegion.h"
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namespace mozilla {
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class LayerTimelineMarker : public TimelineMarker {
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public:
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explicit LayerTimelineMarker(const nsIntRegion& aRegion)
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: TimelineMarker("Layer", MarkerTracingType::HELPER_EVENT),
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mRegion(aRegion) {}
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void AddLayerRectangles(
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dom::Sequence<dom::ProfileTimelineLayerRect>& aRectangles) {
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for (auto iter = mRegion.RectIter(); !iter.Done(); iter.Next()) {
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const nsIntRect& iterRect = iter.Get();
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dom::ProfileTimelineLayerRect rect;
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rect.mX = iterRect.X();
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rect.mY = iterRect.Y();
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rect.mWidth = iterRect.Width();
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rect.mHeight = iterRect.Height();
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if (!aRectangles.AppendElement(rect, fallible)) {
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// XXX(Bug 1632090) Instead of extending the array 1-by-1 (which might
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// involve multiple reallocations) and potentially crashing here,
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// SetCapacity could be called outside the loop once.
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mozalloc_handle_oom(0);
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}
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}
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}
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private:
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nsIntRegion mRegion;
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};
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} // namespace mozilla
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#endif // mozilla_LayerTimelineMarker_h_
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