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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 <deque> | 8 #include <deque> |
| 9 #include <vector> | 9 #include <vector> |
| 10 | 10 |
| 11 #include "base/memory/scoped_ptr.h" | 11 #include "base/memory/scoped_ptr.h" |
| 12 #include "cc/base/scoped_ptr_vector.h" | |
| 13 #include "cc/output/bsp_compare_result.h" | 12 #include "cc/output/bsp_compare_result.h" |
| 14 #include "cc/quads/draw_polygon.h" | 13 #include "cc/quads/draw_polygon.h" |
| 15 | 14 |
| 16 namespace cc { | 15 namespace cc { |
| 17 | 16 |
| 18 struct BspNode { | 17 struct BspNode { |
| 19 // This represents the splitting plane. | 18 // This represents the splitting plane. |
| 20 scoped_ptr<DrawPolygon> node_data; | 19 scoped_ptr<DrawPolygon> node_data; |
| 21 // This represents any coplanar geometry we found while building the BSP. | 20 // This represents any coplanar geometry we found while building the BSP. |
| 22 ScopedPtrVector<DrawPolygon> coplanars_front; | 21 std::vector<scoped_ptr<DrawPolygon>> coplanars_front; |
| 23 ScopedPtrVector<DrawPolygon> coplanars_back; | 22 std::vector<scoped_ptr<DrawPolygon>> coplanars_back; |
| 24 | 23 |
| 25 scoped_ptr<BspNode> back_child; | 24 scoped_ptr<BspNode> back_child; |
| 26 scoped_ptr<BspNode> front_child; | 25 scoped_ptr<BspNode> front_child; |
| 27 | 26 |
| 28 explicit BspNode(scoped_ptr<DrawPolygon> data); | 27 explicit BspNode(scoped_ptr<DrawPolygon> data); |
| 29 ~BspNode(); | 28 ~BspNode(); |
| 30 }; | 29 }; |
| 31 | 30 |
| 32 class CC_EXPORT BspTree { | 31 class CC_EXPORT BspTree { |
| 33 public: | 32 public: |
| 34 explicit BspTree(std::deque<scoped_ptr<DrawPolygon>>* list); | 33 explicit BspTree(std::deque<scoped_ptr<DrawPolygon>>* list); |
| 35 scoped_ptr<BspNode>& root() { return root_; } | 34 scoped_ptr<BspNode>& root() { return root_; } |
| 36 | 35 |
| 37 template <typename ActionHandlerType> | 36 template <typename ActionHandlerType> |
| 38 void TraverseWithActionHandler(ActionHandlerType* action_handler) const { | 37 void TraverseWithActionHandler(ActionHandlerType* action_handler) const { |
| 39 if (root_) { | 38 if (root_) { |
| 40 WalkInOrderRecursion<ActionHandlerType>(action_handler, root_.get()); | 39 WalkInOrderRecursion<ActionHandlerType>(action_handler, root_.get()); |
| 41 } | 40 } |
| 42 } | 41 } |
| 43 | 42 |
| 44 ~BspTree(); | 43 ~BspTree(); |
| 45 | 44 |
| 46 private: | 45 private: |
| 47 scoped_ptr<BspNode> root_; | 46 scoped_ptr<BspNode> root_; |
| 48 | 47 |
| 49 void FromList(ScopedPtrVector<DrawPolygon>* list); | 48 void FromList(std::vector<scoped_ptr<DrawPolygon>>* list); |
| 50 void BuildTree(BspNode* node, std::deque<scoped_ptr<DrawPolygon>>* data); | 49 void BuildTree(BspNode* node, std::deque<scoped_ptr<DrawPolygon>>* data); |
| 51 | 50 |
| 52 template <typename ActionHandlerType> | 51 template <typename ActionHandlerType> |
| 53 void WalkInOrderAction(ActionHandlerType* action_handler, | 52 void WalkInOrderAction(ActionHandlerType* action_handler, |
| 54 DrawPolygon* item) const { | 53 DrawPolygon* item) const { |
| 55 (*action_handler)(item); | 54 (*action_handler)(item); |
| 56 } | 55 } |
| 57 | 56 |
| 58 template <typename ActionHandlerType> | 57 template <typename ActionHandlerType> |
| 59 void WalkInOrderVisitNodes( | 58 void WalkInOrderVisitNodes( |
| 60 ActionHandlerType* action_handler, | 59 ActionHandlerType* action_handler, |
| 61 const BspNode* node, | 60 const BspNode* node, |
| 62 const BspNode* first_child, | 61 const BspNode* first_child, |
| 63 const BspNode* second_child, | 62 const BspNode* second_child, |
| 64 const ScopedPtrVector<DrawPolygon>& first_coplanars, | 63 const std::vector<scoped_ptr<DrawPolygon>>& first_coplanars, |
| 65 const ScopedPtrVector<DrawPolygon>& second_coplanars) const { | 64 const std::vector<scoped_ptr<DrawPolygon>>& second_coplanars) const { |
| 66 if (first_child) { | 65 if (first_child) { |
| 67 WalkInOrderRecursion(action_handler, first_child); | 66 WalkInOrderRecursion(action_handler, first_child); |
| 68 } | 67 } |
| 69 for (size_t i = 0; i < first_coplanars.size(); i++) { | 68 for (size_t i = 0; i < first_coplanars.size(); i++) { |
| 70 WalkInOrderAction(action_handler, first_coplanars[i]); | 69 WalkInOrderAction(action_handler, first_coplanars[i].get()); |
| 71 } | 70 } |
| 72 WalkInOrderAction(action_handler, node->node_data.get()); | 71 WalkInOrderAction(action_handler, node->node_data.get()); |
| 73 for (size_t i = 0; i < second_coplanars.size(); i++) { | 72 for (size_t i = 0; i < second_coplanars.size(); i++) { |
| 74 WalkInOrderAction(action_handler, second_coplanars[i]); | 73 WalkInOrderAction(action_handler, second_coplanars[i].get()); |
| 75 } | 74 } |
| 76 if (second_child) { | 75 if (second_child) { |
| 77 WalkInOrderRecursion(action_handler, second_child); | 76 WalkInOrderRecursion(action_handler, second_child); |
| 78 } | 77 } |
| 79 } | 78 } |
| 80 | 79 |
| 81 template <typename ActionHandlerType> | 80 template <typename ActionHandlerType> |
| 82 void WalkInOrderRecursion(ActionHandlerType* action_handler, | 81 void WalkInOrderRecursion(ActionHandlerType* action_handler, |
| 83 const BspNode* node) const { | 82 const BspNode* node) const { |
| 84 // If our view is in front of the the polygon | 83 // If our view is in front of the the polygon |
| (...skipping 20 matching lines...) Expand all Loading... |
| 105 static BspCompareResult GetNodePositionRelative(const DrawPolygon& node_a, | 104 static BspCompareResult GetNodePositionRelative(const DrawPolygon& node_a, |
| 106 const DrawPolygon& node_b); | 105 const DrawPolygon& node_b); |
| 107 // Returns whether or not our viewer is in front of or behind the plane | 106 // Returns whether or not our viewer is in front of or behind the plane |
| 108 // defined by this polygon/node | 107 // defined by this polygon/node |
| 109 static BspCompareResult GetCameraPositionRelative(const DrawPolygon& node); | 108 static BspCompareResult GetCameraPositionRelative(const DrawPolygon& node); |
| 110 }; | 109 }; |
| 111 | 110 |
| 112 } // namespace cc | 111 } // namespace cc |
| 113 | 112 |
| 114 #endif // CC_OUTPUT_BSP_TREE_H_ | 113 #endif // CC_OUTPUT_BSP_TREE_H_ |
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