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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 CC_TREES_LAYER_TREE_HOST_COMMON_H_ | 5 #ifndef CC_TREES_LAYER_TREE_HOST_COMMON_H_ |
6 #define CC_TREES_LAYER_TREE_HOST_COMMON_H_ | 6 #define CC_TREES_LAYER_TREE_HOST_COMMON_H_ |
7 | 7 |
8 #include "base/memory/ref_counted.h" | 8 #include "base/memory/ref_counted.h" |
9 #include "cc/base/cc_export.h" | 9 #include "cc/base/cc_export.h" |
10 #include "cc/base/scoped_ptr_vector.h" | 10 #include "cc/base/scoped_ptr_vector.h" |
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91 float page_scale_delta; | 91 float page_scale_delta; |
92 }; | 92 }; |
93 | 93 |
94 template <typename LayerType> | 94 template <typename LayerType> |
95 bool LayerTreeHostCommon::RenderSurfaceContributesToTarget( | 95 bool LayerTreeHostCommon::RenderSurfaceContributesToTarget( |
96 LayerType* layer, | 96 LayerType* layer, |
97 int target_surface_layer_id) { | 97 int target_surface_layer_id) { |
98 // A layer will either contribute its own content, or its render surface's | 98 // A layer will either contribute its own content, or its render surface's |
99 // content, to the target surface. The layer contributes its surface's content | 99 // content, to the target surface. The layer contributes its surface's content |
100 // when both the following are true: | 100 // when both the following are true: |
101 // (1) The layer actually has a renderSurface, and | 101 // (1) The layer actually has a render surface, and |
102 // (2) The layer's renderSurface is not the same as the targetSurface. | 102 // (2) The layer's render surface is not the same as the target surface. |
103 // | 103 // |
104 // Otherwise, the layer just contributes itself to the target surface. | 104 // Otherwise, the layer just contributes itself to the target surface. |
105 | 105 |
106 return layer->render_surface() && layer->id() != target_surface_layer_id; | 106 return layer->render_surface() && layer->id() != target_surface_layer_id; |
107 } | 107 } |
108 | 108 |
109 template <typename LayerType> | 109 template <typename LayerType> |
110 LayerType* LayerTreeHostCommon::FindLayerInSubtree(LayerType* root_layer, | 110 LayerType* LayerTreeHostCommon::FindLayerInSubtree(LayerType* root_layer, |
111 int layer_id) { | 111 int layer_id) { |
112 if (root_layer->id() == layer_id) | 112 if (root_layer->id() == layer_id) |
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124 get_child_as_raw_ptr(root_layer->children(), i), layer_id)) | 124 get_child_as_raw_ptr(root_layer->children(), i), layer_id)) |
125 return found; | 125 return found; |
126 } | 126 } |
127 return NULL; | 127 return NULL; |
128 } | 128 } |
129 | 129 |
130 template <class Function, typename LayerType> | 130 template <class Function, typename LayerType> |
131 void LayerTreeHostCommon::CallFunctionForSubtree(LayerType* root_layer) { | 131 void LayerTreeHostCommon::CallFunctionForSubtree(LayerType* root_layer) { |
132 Function()(root_layer); | 132 Function()(root_layer); |
133 | 133 |
134 if (LayerType* maskLayer = root_layer->mask_layer()) | 134 if (LayerType* mask_layer = root_layer->mask_layer()) |
135 Function()(maskLayer); | 135 Function()(mask_layer); |
136 if (LayerType* replicaLayer = root_layer->replica_layer()) { | 136 if (LayerType* replica_layer = root_layer->replica_layer()) { |
137 Function()(replicaLayer); | 137 Function()(replica_layer); |
138 if (LayerType* maskLayer = replicaLayer->mask_layer()) | 138 if (LayerType* mask_layer = replica_layer->mask_layer()) |
139 Function()(maskLayer); | 139 Function()(mask_layer); |
140 } | 140 } |
141 | 141 |
142 for (size_t i = 0; i < root_layer->children().size(); ++i) { | 142 for (size_t i = 0; i < root_layer->children().size(); ++i) { |
143 CallFunctionForSubtree<Function>( | 143 CallFunctionForSubtree<Function>( |
144 get_child_as_raw_ptr(root_layer->children(), i)); | 144 get_child_as_raw_ptr(root_layer->children(), i)); |
145 } | 145 } |
146 } | 146 } |
147 | 147 |
148 } // namespace cc | 148 } // namespace cc |
149 | 149 |
150 #endif // CC_TREES_LAYER_TREE_HOST_COMMON_H_ | 150 #endif // CC_TREES_LAYER_TREE_HOST_COMMON_H_ |
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