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1 // Copyright 2011 The Chromium Authors. All rights reserved. | 1 // Copyright 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CCLayerTreeHostCommon_h | 5 #ifndef CCLayerTreeHostCommon_h |
6 #define CCLayerTreeHostCommon_h | 6 #define CCLayerTreeHostCommon_h |
7 | 7 |
8 #include "base/memory/ref_counted.h" | 8 #include "base/memory/ref_counted.h" |
9 #include "cc/scoped_ptr_vector.h" | 9 #include "cc/scoped_ptr_vector.h" |
10 #include "IntRect.h" | 10 #include "IntRect.h" |
11 #include "IntSize.h" | 11 #include "IntSize.h" |
12 #include <public/WebTransformationMatrix.h> | 12 #include <public/WebTransformationMatrix.h> |
13 #include <wtf/Vector.h> | 13 #include <wtf/Vector.h> |
14 | 14 |
15 namespace cc { | 15 namespace cc { |
16 | 16 |
17 class CCLayerImpl; | 17 class LayerImpl; |
18 class CCLayerSorter; | 18 class LayerSorter; |
19 class LayerChromium; | 19 class Layer; |
20 | 20 |
21 class CCLayerTreeHostCommon { | 21 class LayerTreeHostCommon { |
22 public: | 22 public: |
23 static IntRect calculateVisibleRect(const IntRect& targetSurfaceRect, const
IntRect& layerBoundRect, const WebKit::WebTransformationMatrix&); | 23 static IntRect calculateVisibleRect(const IntRect& targetSurfaceRect, const
IntRect& layerBoundRect, const WebKit::WebTransformationMatrix&); |
24 | 24 |
25 static void calculateDrawTransforms(LayerChromium* rootLayer, const IntSize&
deviceViewportSize, float deviceScaleFactor, int maxTextureSize, std::vector<sc
oped_refptr<LayerChromium> >& renderSurfaceLayerList); | 25 static void calculateDrawTransforms(Layer* rootLayer, const IntSize& deviceV
iewportSize, float deviceScaleFactor, int maxTextureSize, std::vector<scoped_ref
ptr<Layer> >& renderSurfaceLayerList); |
26 static void calculateDrawTransforms(CCLayerImpl* rootLayer, const IntSize& d
eviceViewportSize, float deviceScaleFactor, CCLayerSorter*, int maxTextureSize,
std::vector<CCLayerImpl*>& renderSurfaceLayerList); | 26 static void calculateDrawTransforms(LayerImpl* rootLayer, const IntSize& dev
iceViewportSize, float deviceScaleFactor, LayerSorter*, int maxTextureSize, std:
:vector<LayerImpl*>& renderSurfaceLayerList); |
27 | 27 |
28 // Performs hit testing for a given renderSurfaceLayerList. | 28 // Performs hit testing for a given renderSurfaceLayerList. |
29 static CCLayerImpl* findLayerThatIsHitByPoint(const IntPoint& viewportPoint,
std::vector<CCLayerImpl*>& renderSurfaceLayerList); | 29 static LayerImpl* findLayerThatIsHitByPoint(const IntPoint& viewportPoint, s
td::vector<LayerImpl*>& renderSurfaceLayerList); |
30 | 30 |
31 template<typename LayerType> static bool renderSurfaceContributesToTarget(La
yerType*, int targetSurfaceLayerID); | 31 template<typename LayerType> static bool renderSurfaceContributesToTarget(La
yerType*, int targetSurfaceLayerID); |
32 | 32 |
33 // Returns a layer with the given id if one exists in the subtree starting | 33 // Returns a layer with the given id if one exists in the subtree starting |
34 // from the given root layer (including mask and replica layers). | 34 // from the given root layer (including mask and replica layers). |
35 template<typename LayerType> static LayerType* findLayerInSubtree(LayerType*
rootLayer, int layerId); | 35 template<typename LayerType> static LayerType* findLayerInSubtree(LayerType*
rootLayer, int layerId); |
36 | 36 |
37 static LayerChromium* getChildAsRawPtr(const std::vector<scoped_refptr<Layer
Chromium> >& children, size_t index) | 37 static Layer* getChildAsRawPtr(const std::vector<scoped_refptr<Layer> >& chi
ldren, size_t index) |
38 { | 38 { |
39 return children[index].get(); | 39 return children[index].get(); |
40 } | 40 } |
41 | 41 |
42 static CCLayerImpl* getChildAsRawPtr(const ScopedPtrVector<CCLayerImpl>& chi
ldren, size_t index) | 42 static LayerImpl* getChildAsRawPtr(const ScopedPtrVector<LayerImpl>& childre
n, size_t index) |
43 { | 43 { |
44 return children[index]; | 44 return children[index]; |
45 } | 45 } |
46 | 46 |
47 struct ScrollUpdateInfo { | 47 struct ScrollUpdateInfo { |
48 int layerId; | 48 int layerId; |
49 IntSize scrollDelta; | 49 IntSize scrollDelta; |
50 }; | 50 }; |
51 }; | 51 }; |
52 | 52 |
53 struct CCScrollAndScaleSet { | 53 struct ScrollAndScaleSet { |
54 CCScrollAndScaleSet(); | 54 ScrollAndScaleSet(); |
55 ~CCScrollAndScaleSet(); | 55 ~ScrollAndScaleSet(); |
56 | 56 |
57 Vector<CCLayerTreeHostCommon::ScrollUpdateInfo> scrolls; | 57 Vector<LayerTreeHostCommon::ScrollUpdateInfo> scrolls; |
58 float pageScaleDelta; | 58 float pageScaleDelta; |
59 }; | 59 }; |
60 | 60 |
61 template<typename LayerType> | 61 template<typename LayerType> |
62 bool CCLayerTreeHostCommon::renderSurfaceContributesToTarget(LayerType* layer, i
nt targetSurfaceLayerID) | 62 bool LayerTreeHostCommon::renderSurfaceContributesToTarget(LayerType* layer, int
targetSurfaceLayerID) |
63 { | 63 { |
64 // A layer will either contribute its own content, or its render surface's c
ontent, to | 64 // A layer will either contribute its own content, or its render surface's c
ontent, to |
65 // the target surface. The layer contributes its surface's content when both
the | 65 // the target surface. The layer contributes its surface's content when both
the |
66 // following are true: | 66 // following are true: |
67 // (1) The layer actually has a renderSurface, and | 67 // (1) The layer actually has a renderSurface, and |
68 // (2) The layer's renderSurface is not the same as the targetSurface. | 68 // (2) The layer's renderSurface is not the same as the targetSurface. |
69 // | 69 // |
70 // Otherwise, the layer just contributes itself to the target surface. | 70 // Otherwise, the layer just contributes itself to the target surface. |
71 | 71 |
72 return layer->renderSurface() && layer->id() != targetSurfaceLayerID; | 72 return layer->renderSurface() && layer->id() != targetSurfaceLayerID; |
73 } | 73 } |
74 | 74 |
75 template<typename LayerType> | 75 template<typename LayerType> |
76 LayerType* CCLayerTreeHostCommon::findLayerInSubtree(LayerType* rootLayer, int l
ayerId) | 76 LayerType* LayerTreeHostCommon::findLayerInSubtree(LayerType* rootLayer, int lay
erId) |
77 { | 77 { |
78 if (rootLayer->id() == layerId) | 78 if (rootLayer->id() == layerId) |
79 return rootLayer; | 79 return rootLayer; |
80 | 80 |
81 if (rootLayer->maskLayer() && rootLayer->maskLayer()->id() == layerId) | 81 if (rootLayer->maskLayer() && rootLayer->maskLayer()->id() == layerId) |
82 return rootLayer->maskLayer(); | 82 return rootLayer->maskLayer(); |
83 | 83 |
84 if (rootLayer->replicaLayer() && rootLayer->replicaLayer()->id() == layerId) | 84 if (rootLayer->replicaLayer() && rootLayer->replicaLayer()->id() == layerId) |
85 return rootLayer->replicaLayer(); | 85 return rootLayer->replicaLayer(); |
86 | 86 |
87 for (size_t i = 0; i < rootLayer->children().size(); ++i) { | 87 for (size_t i = 0; i < rootLayer->children().size(); ++i) { |
88 if (LayerType* found = findLayerInSubtree(getChildAsRawPtr(rootLayer->ch
ildren(), i), layerId)) | 88 if (LayerType* found = findLayerInSubtree(getChildAsRawPtr(rootLayer->ch
ildren(), i), layerId)) |
89 return found; | 89 return found; |
90 } | 90 } |
91 return 0; | 91 return 0; |
92 } | 92 } |
93 | 93 |
94 } // namespace cc | 94 } // namespace cc |
95 | 95 |
96 #endif | 96 #endif |
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