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view libs/assimp/ImproveCacheLocality.h @ 0:b2f14e535253

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author John Tsiombikas <nuclear@member.fsf.org>
date Sat, 01 Feb 2014 19:58:19 +0200
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1 /*
2 Open Asset Import Library (assimp)
3 ----------------------------------------------------------------------
4
5 Copyright (c) 2006-2012, assimp team
6 All rights reserved.
7
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:
11
12 * Redistributions of source code must retain the above
13 copyright notice, this list of conditions and the
14 following disclaimer.
15
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.
20
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.
25
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.
37
38 ----------------------------------------------------------------------
39 */
40
41 /** @file Defines a post processing step to reorder faces for
42 better cache locality*/
43 #ifndef AI_IMPROVECACHELOCALITY_H_INC
44 #define AI_IMPROVECACHELOCALITY_H_INC
45
46 #include "BaseProcess.h"
47 #include "assimp/types.h"
48
49 struct aiMesh;
50
51 namespace Assimp
52 {
53
54 // ---------------------------------------------------------------------------
55 /** The ImproveCacheLocalityProcess reorders all faces for improved vertex
56 * cache locality. It tries to arrange all faces to fans and to render
57 * faces which share vertices directly one after the other.
58 *
59 * @note This step expects triagulated input data.
60 */
61 class ImproveCacheLocalityProcess : public BaseProcess
62 {
63 public:
64
65 ImproveCacheLocalityProcess();
66 ~ImproveCacheLocalityProcess();
67
68 public:
69
70 // -------------------------------------------------------------------
71 // Check whether the pp step is active
72 bool IsActive( unsigned int pFlags) const;
73
74 // -------------------------------------------------------------------
75 // Executes the pp step on a given scene
76 void Execute( aiScene* pScene);
77
78 // -------------------------------------------------------------------
79 // Configures the pp step
80 void SetupProperties(const Importer* pImp);
81
82 protected:
83 // -------------------------------------------------------------------
84 /** Executes the postprocessing step on the given mesh
85 * @param pMesh The mesh to process.
86 * @param meshNum Index of the mesh to process
87 */
88 float ProcessMesh( aiMesh* pMesh, unsigned int meshNum);
89
90 private:
91 //! Configuration parameter: specifies the size of the cache to
92 //! optimize the vertex data for.
93 unsigned int configCacheDepth;
94 };
95
96 } // end of namespace Assimp
97
98 #endif // AI_IMPROVECACHELOCALITY_H_INC