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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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_OUTPUT_BSP_TREE_H_ | 5 #ifndef CC_OUTPUT_BSP_TREE_H_ |
6 #define CC_OUTPUT_BSP_TREE_H_ | 6 #define CC_OUTPUT_BSP_TREE_H_ |
7 | 7 |
8 #include <stddef.h> | 8 #include <stddef.h> |
9 | 9 |
10 #include <deque> | 10 #include <deque> |
| 11 #include <memory> |
11 #include <vector> | 12 #include <vector> |
12 | 13 |
13 #include "base/memory/scoped_ptr.h" | |
14 #include "cc/output/bsp_compare_result.h" | 14 #include "cc/output/bsp_compare_result.h" |
15 #include "cc/quads/draw_polygon.h" | 15 #include "cc/quads/draw_polygon.h" |
16 | 16 |
17 namespace cc { | 17 namespace cc { |
18 | 18 |
19 struct BspNode { | 19 struct BspNode { |
20 // This represents the splitting plane. | 20 // This represents the splitting plane. |
21 scoped_ptr<DrawPolygon> node_data; | 21 std::unique_ptr<DrawPolygon> node_data; |
22 // This represents any coplanar geometry we found while building the BSP. | 22 // This represents any coplanar geometry we found while building the BSP. |
23 std::vector<scoped_ptr<DrawPolygon>> coplanars_front; | 23 std::vector<std::unique_ptr<DrawPolygon>> coplanars_front; |
24 std::vector<scoped_ptr<DrawPolygon>> coplanars_back; | 24 std::vector<std::unique_ptr<DrawPolygon>> coplanars_back; |
25 | 25 |
26 scoped_ptr<BspNode> back_child; | 26 std::unique_ptr<BspNode> back_child; |
27 scoped_ptr<BspNode> front_child; | 27 std::unique_ptr<BspNode> front_child; |
28 | 28 |
29 explicit BspNode(scoped_ptr<DrawPolygon> data); | 29 explicit BspNode(std::unique_ptr<DrawPolygon> data); |
30 ~BspNode(); | 30 ~BspNode(); |
31 }; | 31 }; |
32 | 32 |
33 class CC_EXPORT BspTree { | 33 class CC_EXPORT BspTree { |
34 public: | 34 public: |
35 explicit BspTree(std::deque<scoped_ptr<DrawPolygon>>* list); | 35 explicit BspTree(std::deque<std::unique_ptr<DrawPolygon>>* list); |
36 scoped_ptr<BspNode>& root() { return root_; } | 36 std::unique_ptr<BspNode>& root() { return root_; } |
37 | 37 |
38 template <typename ActionHandlerType> | 38 template <typename ActionHandlerType> |
39 void TraverseWithActionHandler(ActionHandlerType* action_handler) const { | 39 void TraverseWithActionHandler(ActionHandlerType* action_handler) const { |
40 if (root_) { | 40 if (root_) { |
41 WalkInOrderRecursion<ActionHandlerType>(action_handler, root_.get()); | 41 WalkInOrderRecursion<ActionHandlerType>(action_handler, root_.get()); |
42 } | 42 } |
43 } | 43 } |
44 | 44 |
45 ~BspTree(); | 45 ~BspTree(); |
46 | 46 |
47 private: | 47 private: |
48 scoped_ptr<BspNode> root_; | 48 std::unique_ptr<BspNode> root_; |
49 | 49 |
50 void FromList(std::vector<scoped_ptr<DrawPolygon>>* list); | 50 void FromList(std::vector<std::unique_ptr<DrawPolygon>>* list); |
51 void BuildTree(BspNode* node, std::deque<scoped_ptr<DrawPolygon>>* data); | 51 void BuildTree(BspNode* node, std::deque<std::unique_ptr<DrawPolygon>>* data); |
52 | 52 |
53 template <typename ActionHandlerType> | 53 template <typename ActionHandlerType> |
54 void WalkInOrderAction(ActionHandlerType* action_handler, | 54 void WalkInOrderAction(ActionHandlerType* action_handler, |
55 DrawPolygon* item) const { | 55 DrawPolygon* item) const { |
56 (*action_handler)(item); | 56 (*action_handler)(item); |
57 } | 57 } |
58 | 58 |
59 template <typename ActionHandlerType> | 59 template <typename ActionHandlerType> |
60 void WalkInOrderVisitNodes( | 60 void WalkInOrderVisitNodes( |
61 ActionHandlerType* action_handler, | 61 ActionHandlerType* action_handler, |
62 const BspNode* node, | 62 const BspNode* node, |
63 const BspNode* first_child, | 63 const BspNode* first_child, |
64 const BspNode* second_child, | 64 const BspNode* second_child, |
65 const std::vector<scoped_ptr<DrawPolygon>>& first_coplanars, | 65 const std::vector<std::unique_ptr<DrawPolygon>>& first_coplanars, |
66 const std::vector<scoped_ptr<DrawPolygon>>& second_coplanars) const { | 66 const std::vector<std::unique_ptr<DrawPolygon>>& second_coplanars) const { |
67 if (first_child) { | 67 if (first_child) { |
68 WalkInOrderRecursion(action_handler, first_child); | 68 WalkInOrderRecursion(action_handler, first_child); |
69 } | 69 } |
70 for (size_t i = 0; i < first_coplanars.size(); i++) { | 70 for (size_t i = 0; i < first_coplanars.size(); i++) { |
71 WalkInOrderAction(action_handler, first_coplanars[i].get()); | 71 WalkInOrderAction(action_handler, first_coplanars[i].get()); |
72 } | 72 } |
73 WalkInOrderAction(action_handler, node->node_data.get()); | 73 WalkInOrderAction(action_handler, node->node_data.get()); |
74 for (size_t i = 0; i < second_coplanars.size(); i++) { | 74 for (size_t i = 0; i < second_coplanars.size(); i++) { |
75 WalkInOrderAction(action_handler, second_coplanars[i].get()); | 75 WalkInOrderAction(action_handler, second_coplanars[i].get()); |
76 } | 76 } |
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106 static BspCompareResult GetNodePositionRelative(const DrawPolygon& node_a, | 106 static BspCompareResult GetNodePositionRelative(const DrawPolygon& node_a, |
107 const DrawPolygon& node_b); | 107 const DrawPolygon& node_b); |
108 // Returns whether or not our viewer is in front of or behind the plane | 108 // Returns whether or not our viewer is in front of or behind the plane |
109 // defined by this polygon/node | 109 // defined by this polygon/node |
110 static BspCompareResult GetCameraPositionRelative(const DrawPolygon& node); | 110 static BspCompareResult GetCameraPositionRelative(const DrawPolygon& node); |
111 }; | 111 }; |
112 | 112 |
113 } // namespace cc | 113 } // namespace cc |
114 | 114 |
115 #endif // CC_OUTPUT_BSP_TREE_H_ | 115 #endif // CC_OUTPUT_BSP_TREE_H_ |
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