vrshoot
view libs/assimp/OptimizeGraph.h @ 0:b2f14e535253
initial commit
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Sat, 01 Feb 2014 19:58:19 +0200 |
| parents | |
| children |
line source
1 /*
2 Open Asset Import Library (assimp)
3 ----------------------------------------------------------------------
5 Copyright (c) 2006-2012, assimp team
6 All rights reserved.
8 Redistribution and use of this software in source and binary forms,
9 with or without modification, are permitted provided that the
10 following conditions are met:
12 * Redistributions of source code must retain the above
13 copyright notice, this list of conditions and the
14 following disclaimer.
16 * Redistributions in binary form must reproduce the above
17 copyright notice, this list of conditions and the
18 following disclaimer in the documentation and/or other
19 materials provided with the distribution.
21 * Neither the name of the assimp team, nor the names of its
22 contributors may be used to endorse or promote products
23 derived from this software without specific prior
24 written permission of the assimp team.
26 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
27 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
28 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
29 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
30 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
31 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
32 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
33 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
34 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
35 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
36 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 ----------------------------------------------------------------------
39 */
41 /** @file OptimizeGraph.h
42 * @brief Declares a post processing step to optimize the scenegraph
43 */
44 #ifndef AI_OPTIMIZEGRAPHPROCESS_H_INC
45 #define AI_OPTIMIZEGRAPHPROCESS_H_INC
47 #include "BaseProcess.h"
48 #include "ProcessHelper.h"
49 #include "assimp/types.h"
51 struct aiMesh;
52 class OptimizeGraphProcessTest;
53 namespace Assimp {
55 // -----------------------------------------------------------------------------
56 /** @brief Postprocessing step to optimize the scenegraph
57 *
58 * The implementation tries to merge nodes, even if they use different
59 * transformations. Animations are preserved.
60 *
61 * @see aiProcess_OptimizeGraph for a detailed description of the
62 * algorithm being applied.
63 */
64 class OptimizeGraphProcess : public BaseProcess
65 {
66 public:
68 OptimizeGraphProcess();
69 ~OptimizeGraphProcess();
71 public:
72 // -------------------------------------------------------------------
73 bool IsActive( unsigned int pFlags) const;
75 // -------------------------------------------------------------------
76 void Execute( aiScene* pScene);
78 // -------------------------------------------------------------------
79 void SetupProperties(const Importer* pImp);
82 // -------------------------------------------------------------------
83 /** @brief Add a list of node names to be locked and not modified.
84 * @param in List of nodes. See #AI_CONFIG_PP_OG_EXCLUDE_LIST for
85 * format explanations.
86 */
87 inline void AddLockedNodeList(std::string& in)
88 {
89 ConvertListToStrings (in,locked_nodes);
90 }
92 // -------------------------------------------------------------------
93 /** @brief Add another node to be locked and not modified.
94 * @param name Name to be locked
95 */
96 inline void AddLockedNode(std::string& name)
97 {
98 locked_nodes.push_back(name);
99 }
101 // -------------------------------------------------------------------
102 /** @brief Rmeove a node from the list of locked nodes.
103 * @param name Name to be unlocked
104 */
105 inline void RemoveLockedNode(std::string& name)
106 {
107 locked_nodes.remove(name);
108 }
110 protected:
112 void CollectNewChildren(aiNode* nd, std::list<aiNode*>& nodes);
113 void FindInstancedMeshes (aiNode* pNode);
115 private:
117 #ifdef AI_OG_USE_HASHING
118 typedef std::set<unsigned int> LockedSetType;
119 #else
120 typedef std::set<std::string> LockedSetType;
121 #endif
124 //! Scene we're working with
125 aiScene* mScene;
127 //! List of locked names. Stored is the hash of the name
128 LockedSetType locked;
130 //! List of nodes to be locked in addition to those with animations, lights or cameras assigned.
131 std::list<std::string> locked_nodes;
133 //! Node counters for logging purposes
134 unsigned int nodes_in,nodes_out, count_merged;
136 //! Reference counters for meshes
137 std::vector<unsigned int> meshes;
138 };
140 } // end of namespace Assimp
142 #endif // AI_OPTIMIZEGRAPHPROCESS_H_INC