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

Bullet Collision Detection & Physics Library

btTriangleIndexVertexArray.cpp
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1/*
2Bullet Continuous Collision Detection and Physics Library
3Copyright (c) 2003-2009 Erwin Coumans http://bulletphysics.org
4
5This software is provided 'as-is', without any express or implied warranty.
6In no event will the authors be held liable for any damages arising from the use of this software.
7Permission is granted to anyone to use this software for any purpose,
8including commercial applications, and to alter it and redistribute it freely,
9subject to the following restrictions:
10
111. 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.
122. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
133. 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
33btTriangleIndexVertexArray::~btTriangleIndexVertexArray()
34{
35}
36
37 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)
38{
39 btAssert(subpart < getNumSubParts());
40
41 btIndexedMesh& mesh = m_indexedMeshes[subpart];
42
43 numverts = mesh.m_numVertices;
44 (*vertexbase) = (unsigned char*)mesh.m_vertexBase;
45
46 type = mesh.m_vertexType;
47
48 vertexStride = mesh.m_vertexStride;
49
50 numfaces = mesh.m_numTriangles;
51
52 (*indexbase) = (unsigned char*)mesh.m_triangleIndexBase;
53 indexstride = mesh.m_triangleIndexStride;
54 indicestype = mesh.m_indexType;
55}
56
57 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
58{
59 const btIndexedMesh& mesh = m_indexedMeshes[subpart];
60
61 numverts = mesh.m_numVertices;
62 (*vertexbase) = (const unsigned char*)mesh.m_vertexBase;
63
64 type = mesh.m_vertexType;
65
66 vertexStride = mesh.m_vertexStride;
67
68 numfaces = mesh.m_numTriangles;
69 (*indexbase) = (const unsigned char*)mesh.m_triangleIndexBase;
70 indexstride = mesh.m_triangleIndexStride;
71 indicestype = mesh.m_indexType;
72}
73
74 bool btTriangleIndexVertexArray::hasPremadeAabb() const
75{
76 return (m_hasAabb == 1);
77}
78
79 void btTriangleIndexVertexArray::setPremadeAabb(const btVector3& aabbMin, const btVector3& aabbMax) const
80{
81 m_aabbMin = aabbMin;
82 m_aabbMax = aabbMax;
83 m_hasAabb = 1; // this is intentionally an int see notes in header
84}
85
86 void btTriangleIndexVertexArray::getPremadeAabb(btVector3* aabbMin, btVector3* aabbMax) const
87{
88 *aabbMin = m_aabbMin;
89 *aabbMax = m_aabbMax;
90}
PHY_ScalarType
PHY_ScalarType
PHY_ScalarType enumerates possible scalar types.
Definition btConcaveShape.h:26
btScalar
float btScalar
The btScalar type abstracts floating point numbers, to easily switch between double and single floati...
Definition btScalar.h:314
btAssert
#define btAssert(x)
Definition btScalar.h:153
btTriangleIndexVertexArray.h
btTriangleIndexVertexArray::addIndexedMesh
void addIndexedMesh(const btIndexedMesh &mesh, PHY_ScalarType indexType=PHY_INTEGER)
Definition btTriangleIndexVertexArray.h:87
btTriangleIndexVertexArray::m_hasAabb
int m_hasAabb
Definition btTriangleIndexVertexArray.h:71
btTriangleIndexVertexArray::m_aabbMax
btVector3 m_aabbMax
Definition btTriangleIndexVertexArray.h:73
btTriangleIndexVertexArray::getNumSubParts
virtual int getNumSubParts() const
getNumSubParts returns the number of separate subparts each subpart has a continuous array of vertice...
Definition btTriangleIndexVertexArray.h:105
btTriangleIndexVertexArray::m_aabbMin
btVector3 m_aabbMin
Definition btTriangleIndexVertexArray.h:72
btTriangleIndexVertexArray::setPremadeAabb
virtual void setPremadeAabb(const btVector3 &aabbMin, const btVector3 &aabbMax) const
Definition btTriangleIndexVertexArray.cpp:79
btTriangleIndexVertexArray::~btTriangleIndexVertexArray
virtual ~btTriangleIndexVertexArray()
Definition btTriangleIndexVertexArray.cpp:33
btTriangleIndexVertexArray::hasPremadeAabb
virtual bool hasPremadeAabb() const
Definition btTriangleIndexVertexArray.cpp:74
btTriangleIndexVertexArray::m_indexedMeshes
IndexedMeshArray m_indexedMeshes
Definition btTriangleIndexVertexArray.h:69
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:57
btTriangleIndexVertexArray::getPremadeAabb
virtual void getPremadeAabb(btVector3 *aabbMin, btVector3 *aabbMax) const
Definition btTriangleIndexVertexArray.cpp:86
btTriangleIndexVertexArray::btTriangleIndexVertexArray
btTriangleIndexVertexArray()
Definition btTriangleIndexVertexArray.h:78
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:37
btVector3
btVector3 can be used to represent 3D points and vectors.
Definition btVector3.h:82
btIndexedMesh
The btIndexedMesh indexes a single vertex and index array.
Definition btTriangleIndexVertexArray.h:27
btIndexedMesh::m_indexType
PHY_ScalarType m_indexType
Definition btTriangleIndexVertexArray.h:41
btIndexedMesh::m_numVertices
int m_numVertices
Definition btTriangleIndexVertexArray.h:34
btIndexedMesh::m_numTriangles
int m_numTriangles
Definition btTriangleIndexVertexArray.h:30
btIndexedMesh::m_triangleIndexStride
int m_triangleIndexStride
Definition btTriangleIndexVertexArray.h:33
btIndexedMesh::m_vertexBase
const unsigned char * m_vertexBase
Definition btTriangleIndexVertexArray.h:35
btIndexedMesh::m_vertexStride
int m_vertexStride
Definition btTriangleIndexVertexArray.h:37
btIndexedMesh::m_triangleIndexBase
const unsigned char * m_triangleIndexBase
Definition btTriangleIndexVertexArray.h:31
btIndexedMesh::m_vertexType
PHY_ScalarType m_vertexType
Definition btTriangleIndexVertexArray.h:46