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| 1 /* | 1 /* |
| 2 * Copyright (C) 2003, 2009, 2012 Apple Inc. All rights reserved. | 2 * Copyright (C) 2003, 2009, 2012 Apple Inc. All rights reserved. |
| 3 * Copyright (C) 2013 Intel Corporation. All rights reserved. | 3 * Copyright (C) 2013 Intel Corporation. All rights reserved. |
| 4 * | 4 * |
| 5 * Portions are Copyright (C) 1998 Netscape Communications Corporation. | 5 * Portions are Copyright (C) 1998 Netscape Communications Corporation. |
| 6 * | 6 * |
| 7 * Other contributors: | 7 * Other contributors: |
| 8 * Robert O'Callahan <roc+@cs.cmu.edu> | 8 * Robert O'Callahan <roc+@cs.cmu.edu> |
| 9 * David Baron <dbaron@fas.harvard.edu> | 9 * David Baron <dbaron@fas.harvard.edu> |
| 10 * Christian Biesinger <cbiesinger@web.de> | 10 * Christian Biesinger <cbiesinger@web.de> |
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| 124 RenderLayerStackingNode* stackingNode() { return m_stackingNode.get(); } | 124 RenderLayerStackingNode* stackingNode() { return m_stackingNode.get(); } |
| 125 const RenderLayerStackingNode* stackingNode() const { return m_stackingNode.
get(); } | 125 const RenderLayerStackingNode* stackingNode() const { return m_stackingNode.
get(); } |
| 126 | 126 |
| 127 bool hasBoxDecorationsOrBackground() const; | 127 bool hasBoxDecorationsOrBackground() const; |
| 128 bool hasVisibleBoxDecorations() const; | 128 bool hasVisibleBoxDecorations() const; |
| 129 // Returns true if this layer has visible content (ignoring any child layers
). | 129 // Returns true if this layer has visible content (ignoring any child layers
). |
| 130 bool isVisuallyNonEmpty() const; | 130 bool isVisuallyNonEmpty() const; |
| 131 // True if this layer container renderers that paint. | 131 // True if this layer container renderers that paint. |
| 132 bool hasNonEmptyChildRenderers() const; | 132 bool hasNonEmptyChildRenderers() const; |
| 133 | 133 |
| 134 bool usedTransparency() const { return m_usedTransparency; } | |
| 135 void clearUsedTransparency() { m_usedTransparency = false; } | |
| 136 | |
| 137 // Gets the nearest enclosing positioned ancestor layer (also includes | 134 // Gets the nearest enclosing positioned ancestor layer (also includes |
| 138 // the <html> layer and the root layer). | 135 // the <html> layer and the root layer). |
| 139 RenderLayer* enclosingPositionedAncestor() const; | 136 RenderLayer* enclosingPositionedAncestor() const; |
| 140 | 137 |
| 141 RenderLayer* enclosingOverflowClipLayer(IncludeSelfOrNot = IncludeSelf) cons
t; | 138 RenderLayer* enclosingOverflowClipLayer(IncludeSelfOrNot = IncludeSelf) cons
t; |
| 142 | 139 |
| 143 const RenderLayer* compositingContainer() const; | 140 const RenderLayer* compositingContainer() const; |
| 144 RenderLayer* enclosingFilterLayer(IncludeSelfOrNot = IncludeSelf) const; | 141 RenderLayer* enclosingFilterLayer(IncludeSelfOrNot = IncludeSelf) const; |
| 145 bool hasAncestorWithFilterOutsets() const; | 142 bool hasAncestorWithFilterOutsets() const; |
| 146 | 143 |
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| 260 // FIXME: We should only create the stacking node if needed. | 257 // FIXME: We should only create the stacking node if needed. |
| 261 bool requiresStackingNode() const { return true; } | 258 bool requiresStackingNode() const { return true; } |
| 262 void updateStackingNode(); | 259 void updateStackingNode(); |
| 263 | 260 |
| 264 void updateTransform(const RenderStyle* oldStyle, RenderStyle* newStyle); | 261 void updateTransform(const RenderStyle* oldStyle, RenderStyle* newStyle); |
| 265 | 262 |
| 266 void dirty3DTransformedDescendantStatus(); | 263 void dirty3DTransformedDescendantStatus(); |
| 267 | 264 |
| 268 void updateOrRemoveFilterClients(); | 265 void updateOrRemoveFilterClients(); |
| 269 | 266 |
| 270 LayoutRect paintingExtent(const RenderLayer* rootLayer, const LayoutRect& pa
intDirtyRect, const LayoutSize& subPixelAccumulation); | |
| 271 | |
| 272 LayerType m_layerType; | 267 LayerType m_layerType; |
| 273 | 268 |
| 274 // Self-painting layer is an optimization where we avoid the heavy RenderLay
er painting | 269 // Self-painting layer is an optimization where we avoid the heavy RenderLay
er painting |
| 275 // machinery for a RenderLayer allocated only to handle the overflow clip ca
se. | 270 // machinery for a RenderLayer allocated only to handle the overflow clip ca
se. |
| 276 // FIXME(crbug.com/332791): Self-painting layer should be merged into the ov
erflow-only concept. | 271 // FIXME(crbug.com/332791): Self-painting layer should be merged into the ov
erflow-only concept. |
| 277 unsigned m_isSelfPaintingLayer : 1; | 272 unsigned m_isSelfPaintingLayer : 1; |
| 278 | 273 |
| 279 // If have no self-painting descendants, we don't have to walk our children
during painting. This can lead to | 274 // If have no self-painting descendants, we don't have to walk our children
during painting. This can lead to |
| 280 // significant savings, especially if the tree has lots of non-self-painting
layers grouped together (e.g. table cells). | 275 // significant savings, especially if the tree has lots of non-self-painting
layers grouped together (e.g. table cells). |
| 281 mutable unsigned m_hasSelfPaintingLayerDescendant : 1; | 276 mutable unsigned m_hasSelfPaintingLayerDescendant : 1; |
| 282 mutable unsigned m_hasSelfPaintingLayerDescendantDirty : 1; | 277 mutable unsigned m_hasSelfPaintingLayerDescendantDirty : 1; |
| 283 | 278 |
| 284 const unsigned m_isRootLayer : 1; | 279 const unsigned m_isRootLayer : 1; |
| 285 | 280 |
| 286 unsigned m_usedTransparency : 1; // Tracks whether we need to close a transp
arent layer, i.e., whether | |
| 287 // we ended up painting this layer or any desce
ndants (and therefore need to | |
| 288 // blend). | |
| 289 | |
| 290 unsigned m_3DTransformedDescendantStatusDirty : 1; | 281 unsigned m_3DTransformedDescendantStatusDirty : 1; |
| 291 // Set on a stacking context layer that has 3D descendants anywhere | 282 // Set on a stacking context layer that has 3D descendants anywhere |
| 292 // in a preserves3D hierarchy. Hint to do 3D-aware hit testing. | 283 // in a preserves3D hierarchy. Hint to do 3D-aware hit testing. |
| 293 unsigned m_has3DTransformedDescendant : 1; | 284 unsigned m_has3DTransformedDescendant : 1; |
| 294 | 285 |
| 295 unsigned m_hasFilterInfo : 1; | 286 unsigned m_hasFilterInfo : 1; |
| 296 | 287 |
| 297 RenderBox* m_renderer; | 288 RenderBox* m_renderer; |
| 298 | 289 |
| 299 RenderLayer* m_parent; | 290 RenderLayer* m_parent; |
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| 312 | 303 |
| 313 } // namespace blink | 304 } // namespace blink |
| 314 | 305 |
| 315 #ifndef NDEBUG | 306 #ifndef NDEBUG |
| 316 // Outside the WebCore namespace for ease of invocation from gdb. | 307 // Outside the WebCore namespace for ease of invocation from gdb. |
| 317 void showLayerTree(const blink::RenderLayer*); | 308 void showLayerTree(const blink::RenderLayer*); |
| 318 void showLayerTree(const blink::RenderObject*); | 309 void showLayerTree(const blink::RenderObject*); |
| 319 #endif | 310 #endif |
| 320 | 311 |
| 321 #endif // SKY_ENGINE_CORE_RENDERING_RENDERLAYER_H_ | 312 #endif // SKY_ENGINE_CORE_RENDERING_RENDERLAYER_H_ |
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Chromium Code Reviews
Issue 959543002:
Simplify and reduce calls to beginTransparencyLayers. (Closed)
Base URL: git@github.com:domokit/mojo.git@master