Bullet Collision Detection & Physics Library: btTriangleIndexVertexArray.cpp Source File

Bullet Collision Detection & Physics Library

btTriangleIndexVertexArray.cpp
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1 /*
2 Bullet Continuous Collision Detection and Physics Library
3 Copyright (c) 2003-2009 Erwin Coumans http://bulletphysics.org
4
5 This software is provided 'as-is', without any express or implied warranty.
6 In no event will the authors be held liable for any damages arising from the use of this software.
7 Permission is granted to anyone to use this software for any purpose,
8 including commercial applications, and to alter it and redistribute it freely,
9 subject to the following restrictions:
10
11 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
12 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
13 3. This notice may not be removed or altered from any source distribution.
14 */
15
16 #include "btTriangleIndexVertexArray.h"
17
18 btTriangleIndexVertexArray::btTriangleIndexVertexArray(int numTriangles,int* triangleIndexBase,int triangleIndexStride,int numVertices,btScalar* vertexBase,int vertexStride)
19 : m_hasAabb(0)
20 {
21 btIndexedMesh mesh;
22
23 mesh.m_numTriangles = numTriangles;
24 mesh.m_triangleIndexBase = (const unsigned char *)triangleIndexBase;
25 mesh.m_triangleIndexStride = triangleIndexStride;
26 mesh.m_numVertices = numVertices;
27 mesh.m_vertexBase = (const unsigned char *)vertexBase;
28 mesh.m_vertexStride = vertexStride;
29
30 addIndexedMesh(mesh);
31
32 }
33
34 btTriangleIndexVertexArray::~btTriangleIndexVertexArray()
35 {
36
37 }
38
39 void btTriangleIndexVertexArray::getLockedVertexIndexBase(unsigned char **vertexbase, int& numverts,PHY_ScalarType& type, int& vertexStride,unsigned char **indexbase,int & indexstride,int& numfaces,PHY_ScalarType& indicestype,int subpart)
40 {
41 btAssert(subpart< getNumSubParts() );
42
43 btIndexedMesh& mesh = m_indexedMeshes[subpart];
44
45 numverts = mesh.m_numVertices;
46 (*vertexbase) = (unsigned char *) mesh.m_vertexBase;
47
48 type = mesh.m_vertexType;
49
50 vertexStride = mesh.m_vertexStride;
51
52 numfaces = mesh.m_numTriangles;
53
54 (*indexbase) = (unsigned char *)mesh.m_triangleIndexBase;
55 indexstride = mesh.m_triangleIndexStride;
56 indicestype = mesh.m_indexType;
57 }
58
59 void btTriangleIndexVertexArray::getLockedReadOnlyVertexIndexBase(const unsigned char **vertexbase, int& numverts,PHY_ScalarType& type, int& vertexStride,const unsigned char **indexbase,int & indexstride,int& numfaces,PHY_ScalarType& indicestype,int subpart) const
60 {
61 const btIndexedMesh& mesh = m_indexedMeshes[subpart];
62
63 numverts = mesh.m_numVertices;
64 (*vertexbase) = (const unsigned char *)mesh.m_vertexBase;
65
66 type = mesh.m_vertexType;
67
68 vertexStride = mesh.m_vertexStride;
69
70 numfaces = mesh.m_numTriangles;
71 (*indexbase) = (const unsigned char *)mesh.m_triangleIndexBase;
72 indexstride = mesh.m_triangleIndexStride;
73 indicestype = mesh.m_indexType;
74 }
75
76 bool btTriangleIndexVertexArray::hasPremadeAabb() const
77 {
78 return (m_hasAabb == 1);
79 }
80
81
82 void btTriangleIndexVertexArray::setPremadeAabb(const btVector3& aabbMin, const btVector3& aabbMax ) const
83 {
84 m_aabbMin = aabbMin;
85 m_aabbMax = aabbMax;
86 m_hasAabb = 1; // this is intentionally an int see notes in header
87 }
88
89 void btTriangleIndexVertexArray::getPremadeAabb(btVector3* aabbMin, btVector3* aabbMax ) const
90 {
91 *aabbMin = m_aabbMin;
92 *aabbMax = m_aabbMax;
93 }
94
95
btIndexedMesh::m_numTriangles
int m_numTriangles
Definition: btTriangleIndexVertexArray.h:30
btTriangleIndexVertexArray::setPremadeAabb
virtual void setPremadeAabb(const btVector3 &aabbMin, const btVector3 &aabbMax) const
Definition: btTriangleIndexVertexArray.cpp:82
btIndexedMesh
The btIndexedMesh indexes a single vertex and index array.
Definition: btTriangleIndexVertexArray.h:26
btTriangleIndexVertexArray::m_aabbMin
btVector3 m_aabbMin
Definition: btTriangleIndexVertexArray.h:74
btAssert
#define btAssert(x)
Definition: btScalar.h:131
btTriangleIndexVertexArray::btTriangleIndexVertexArray
btTriangleIndexVertexArray()
Definition: btTriangleIndexVertexArray.h:81
btTriangleIndexVertexArray.h
btTriangleIndexVertexArray::hasPremadeAabb
virtual bool hasPremadeAabb() const
Definition: btTriangleIndexVertexArray.cpp:76
btIndexedMesh::m_indexType
PHY_ScalarType m_indexType
Definition: btTriangleIndexVertexArray.h:41
btTriangleIndexVertexArray::m_hasAabb
int m_hasAabb
Definition: btTriangleIndexVertexArray.h:73
btTriangleIndexVertexArray::m_indexedMeshes
IndexedMeshArray m_indexedMeshes
Definition: btTriangleIndexVertexArray.h:71
btTriangleIndexVertexArray::m_aabbMax
btVector3 m_aabbMax
Definition: btTriangleIndexVertexArray.h:75
btTriangleIndexVertexArray::addIndexedMesh
void addIndexedMesh(const btIndexedMesh &mesh, PHY_ScalarType indexType=PHY_INTEGER)
Definition: btTriangleIndexVertexArray.h:90
btIndexedMesh::m_triangleIndexStride
int m_triangleIndexStride
Definition: btTriangleIndexVertexArray.h:33
btTriangleIndexVertexArray::~btTriangleIndexVertexArray
virtual ~btTriangleIndexVertexArray()
Definition: btTriangleIndexVertexArray.cpp:34
btIndexedMesh::m_triangleIndexBase
const unsigned char * m_triangleIndexBase
Definition: btTriangleIndexVertexArray.h:31
btVector3
btVector3 can be used to represent 3D points and vectors.
Definition: btVector3.h:83
btTriangleIndexVertexArray::getNumSubParts
virtual int getNumSubParts() const
getNumSubParts returns the number of seperate subparts each subpart has a continuous array of vertice...
Definition: btTriangleIndexVertexArray.h:109
btTriangleIndexVertexArray::getLockedReadOnlyVertexIndexBase
virtual void getLockedReadOnlyVertexIndexBase(const unsigned char **vertexbase, int &numverts, PHY_ScalarType &type, int &vertexStride, const unsigned char **indexbase, int &indexstride, int &numfaces, PHY_ScalarType &indicestype, int subpart=0) const
Definition: btTriangleIndexVertexArray.cpp:59
btTriangleIndexVertexArray::getPremadeAabb
virtual void getPremadeAabb(btVector3 *aabbMin, btVector3 *aabbMax) const
Definition: btTriangleIndexVertexArray.cpp:89
btIndexedMesh::m_numVertices
int m_numVertices
Definition: btTriangleIndexVertexArray.h:34
btIndexedMesh::m_vertexStride
int m_vertexStride
Definition: btTriangleIndexVertexArray.h:37
btTriangleIndexVertexArray::getLockedVertexIndexBase
virtual void getLockedVertexIndexBase(unsigned char **vertexbase, int &numverts, PHY_ScalarType &type, int &vertexStride, unsigned char **indexbase, int &indexstride, int &numfaces, PHY_ScalarType &indicestype, int subpart=0)
get read and write access to a subpart of a triangle mesh this subpart has a continuous array of vert...
Definition: btTriangleIndexVertexArray.cpp:39
btScalar
float btScalar
The btScalar type abstracts floating point numbers, to easily switch between double and single floati...
Definition: btScalar.h:292
btIndexedMesh::m_vertexType
PHY_ScalarType m_vertexType
Definition: btTriangleIndexVertexArray.h:46
PHY_ScalarType
PHY_ScalarType
PHY_ScalarType enumerates possible scalar types.
Definition: btConcaveShape.h:25
btIndexedMesh::m_vertexBase
const unsigned char * m_vertexBase
Definition: btTriangleIndexVertexArray.h:35