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e0fd75b5ab
This caused us to lose our gn check certification. :( Turns out gn check was just ignoring all the header paths it didn't understand and so gn check passing for sky wasn't meaning much. I tried to straighten out some of the mess in this CL, but its going to take several more rounds of massaging before gn check passes again. On the bright side (almost) all of our headers are absolute now. Turns out my script (attached to the bug) didn't notice ../ includes but I'll fix that in the next patch. R=abarth@chromium.org BUG=435361 Review URL: https://codereview.chromium.org/746023002
95 lines
4.1 KiB
C++
95 lines
4.1 KiB
C++
/*
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* Copyright (C) 2009, 2010 Apple Inc. All rights reserved.
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* Copyright (C) 2014 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef CompositingLayerAssigner_h
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#define CompositingLayerAssigner_h
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#include "sky/engine/core/rendering/compositing/RenderLayerCompositor.h"
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#include "sky/engine/platform/geometry/IntRect.h"
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#include "sky/engine/platform/geometry/LayoutPoint.h"
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namespace blink {
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class RenderLayer;
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class CompositingLayerAssigner {
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public:
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explicit CompositingLayerAssigner(RenderLayerCompositor*);
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~CompositingLayerAssigner();
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void assign(RenderLayer* updateRoot, Vector<RenderLayer*>& layersNeedingPaintInvalidation);
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bool layersChanged() const { return m_layersChanged; }
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// FIXME: This function should be private. We should remove the one caller
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// once we've fixed the compositing chicken/egg issues.
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CompositingStateTransitionType computeCompositedLayerUpdate(RenderLayer*);
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private:
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struct SquashingState {
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SquashingState()
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: mostRecentMapping(0)
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, hasMostRecentMapping(false)
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, haveAssignedBackingsToEntireSquashingLayerSubtree(false)
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, nextSquashedLayerIndex(0)
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, totalAreaOfSquashedRects(0) { }
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void updateSquashingStateForNewMapping(CompositedLayerMapping*, bool hasNewCompositedLayerMapping);
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// The most recent composited backing that the layer should squash onto if needed.
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CompositedLayerMapping* mostRecentMapping;
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bool hasMostRecentMapping;
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// Whether all RenderLayers in the stacking subtree rooted at the most recent mapping's
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// owning layer have had CompositedLayerMappings assigned. Layers cannot squash into a
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// CompositedLayerMapping owned by a stacking ancestor, since this changes paint order.
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bool haveAssignedBackingsToEntireSquashingLayerSubtree;
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// Counter that tracks what index the next RenderLayer would be if it gets squashed to the current squashing layer.
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size_t nextSquashedLayerIndex;
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// The absolute bounding rect of all the squashed layers.
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IntRect boundingRect;
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// This is simply the sum of the areas of the squashed rects. This can be very skewed if the rects overlap,
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// but should be close enough to drive a heuristic.
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uint64_t totalAreaOfSquashedRects;
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};
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void assignLayersToBackingsInternal(RenderLayer*, SquashingState&, Vector<RenderLayer*>& layersNeedingPaintInvalidation);
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CompositingReasons getReasonsPreventingSquashing(const RenderLayer*, const SquashingState&);
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void updateSquashingAssignment(RenderLayer*, SquashingState&, CompositingStateTransitionType, Vector<RenderLayer*>& layersNeedingPaintInvalidation);
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bool needsOwnBacking(const RenderLayer*) const;
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RenderLayerCompositor* m_compositor;
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bool m_layerSquashingEnabled;
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bool m_layersChanged;
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};
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} // namespace blink
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#endif // CompositingLayerAssigner_h
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