Bullet Collision Detection & Physics Library: btStridingMeshInterface.h Source File

Bullet Collision Detection & Physics Library

btStridingMeshInterface.h
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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 #ifndef BT_STRIDING_MESHINTERFACE_H
17 #define BT_STRIDING_MESHINTERFACE_H
18
19 #include "LinearMath/btVector3.h"
20 #include "btTriangleCallback.h"
21 #include "btConcaveShape.h"
22
26 ATTRIBUTE_ALIGNED16(class)
27 btStridingMeshInterface
28 {
29 protected:
30 btVector3 m_scaling;
31
32 public:
33 BT_DECLARE_ALIGNED_ALLOCATOR();
34
35 btStridingMeshInterface() : m_scaling(btScalar(1.), btScalar(1.), btScalar(1.))
36 {
37 }
38
39 virtual ~btStridingMeshInterface();
40
41 virtual void InternalProcessAllTriangles(btInternalTriangleIndexCallback * callback, const btVector3& aabbMin, const btVector3& aabbMax) const;
42
44 void calculateAabbBruteForce(btVector3 & aabbMin, btVector3 & aabbMax);
45
51 virtual void getLockedVertexIndexBase(unsigned char** vertexbase, int& numverts, PHY_ScalarType& type, int& stride, unsigned char** indexbase, int& indexstride, int& numfaces, PHY_ScalarType& indicestype, int subpart = 0) = 0;
52
53 virtual void getLockedReadOnlyVertexIndexBase(const unsigned char** vertexbase, int& numverts, PHY_ScalarType& type, int& stride, const unsigned char** indexbase, int& indexstride, int& numfaces, PHY_ScalarType& indicestype, int subpart = 0) const = 0;
54
57 virtual void unLockVertexBase(int subpart) = 0;
58
59 virtual void unLockReadOnlyVertexBase(int subpart) const = 0;
60
63 virtual int getNumSubParts() const = 0;
64
65 virtual void preallocateVertices(int numverts) = 0;
66 virtual void preallocateIndices(int numindices) = 0;
67
68 virtual bool hasPremadeAabb() const { return false; }
69 virtual void setPremadeAabb(const btVector3& aabbMin, const btVector3& aabbMax) const
70 {
71 (void)aabbMin;
72 (void)aabbMax;
73 }
74 virtual void getPremadeAabb(btVector3 * aabbMin, btVector3 * aabbMax) const
75 {
76 (void)aabbMin;
77 (void)aabbMax;
78 }
79
80 const btVector3& getScaling() const
81 {
82 return m_scaling;
83 }
84 void setScaling(const btVector3& scaling)
85 {
86 m_scaling = scaling;
87 }
88
89 virtual int calculateSerializeBufferSize() const;
90
92 virtual const char* serialize(void* dataBuffer, btSerializer* serializer) const;
93 };
94
95 struct btIntIndexData
96 {
97 int m_value;
98 };
99
100 struct btShortIntIndexData
101 {
102 short m_value;
103 char m_pad[2];
104 };
105
106 struct btShortIntIndexTripletData
107 {
108 short m_values[3];
109 char m_pad[2];
110 };
111
112 struct btCharIndexTripletData
113 {
114 unsigned char m_values[3];
115 char m_pad;
116 };
117
118 // clang-format off
119
121 struct btMeshPartData
122 {
123 btVector3FloatData *m_vertices3f;
124 btVector3DoubleData *m_vertices3d;
125
126 btIntIndexData *m_indices32;
127 btShortIntIndexTripletData *m_3indices16;
128 btCharIndexTripletData *m_3indices8;
129
130 btShortIntIndexData *m_indices16;//backwards compatibility
131
132 int m_numTriangles;//length of m_indices = m_numTriangles
133 int m_numVertices;
134 };
135
136
138 struct btStridingMeshInterfaceData
139 {
140 btMeshPartData *m_meshPartsPtr;
141 btVector3FloatData m_scaling;
142 int m_numMeshParts;
143 char m_padding[4];
144 };
145
146 // clang-format on
147
148 SIMD_FORCE_INLINE int btStridingMeshInterface::calculateSerializeBufferSize() const
149 {
150 return sizeof(btStridingMeshInterfaceData);
151 }
152
153 #endif //BT_STRIDING_MESHINTERFACE_H
btConcaveShape.h
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
ATTRIBUTE_ALIGNED16
#define ATTRIBUTE_ALIGNED16(a)
Definition: btScalar.h:99
SIMD_FORCE_INLINE
#define SIMD_FORCE_INLINE
Definition: btScalar.h:98
btTriangleCallback.h
btVector3.h
btInternalTriangleIndexCallback
Definition: btTriangleCallback.h:31
btSerializer
Definition: btSerializer.h:66
btStridingMeshInterface
The btStridingMeshInterface is the interface class for high performance generic access to triangle me...
Definition: btStridingMeshInterface.h:28
btStridingMeshInterface::getPremadeAabb
virtual void getPremadeAabb(btVector3 *aabbMin, btVector3 *aabbMax) const
Definition: btStridingMeshInterface.h:74
btStridingMeshInterface::getLockedVertexIndexBase
virtual void getLockedVertexIndexBase(unsigned char **vertexbase, int &numverts, PHY_ScalarType &type, int &stride, unsigned char **indexbase, int &indexstride, int &numfaces, PHY_ScalarType &indicestype, int subpart=0)=0
get read and write access to a subpart of a triangle mesh this subpart has a continuous array of vert...
btStridingMeshInterface::BT_DECLARE_ALIGNED_ALLOCATOR
BT_DECLARE_ALIGNED_ALLOCATOR()
btStridingMeshInterface::hasPremadeAabb
virtual bool hasPremadeAabb() const
Definition: btStridingMeshInterface.h:68
btStridingMeshInterface::getLockedReadOnlyVertexIndexBase
virtual void getLockedReadOnlyVertexIndexBase(const unsigned char **vertexbase, int &numverts, PHY_ScalarType &type, int &stride, const unsigned char **indexbase, int &indexstride, int &numfaces, PHY_ScalarType &indicestype, int subpart=0) const =0
btStridingMeshInterface::getScaling
const btVector3 & getScaling() const
Definition: btStridingMeshInterface.h:80
btStridingMeshInterface::preallocateIndices
virtual void preallocateIndices(int numindices)=0
btStridingMeshInterface::setPremadeAabb
virtual void setPremadeAabb(const btVector3 &aabbMin, const btVector3 &aabbMax) const
Definition: btStridingMeshInterface.h:69
btStridingMeshInterface::setScaling
void setScaling(const btVector3 &scaling)
Definition: btStridingMeshInterface.h:84
btStridingMeshInterface::calculateSerializeBufferSize
virtual int calculateSerializeBufferSize() const
Definition: btStridingMeshInterface.h:148
btStridingMeshInterface::unLockVertexBase
virtual void unLockVertexBase(int subpart)=0
unLockVertexBase finishes the access to a subpart of the triangle mesh make a call to unLockVertexBas...
btStridingMeshInterface::getNumSubParts
virtual int getNumSubParts() const =0
getNumSubParts returns the number of separate subparts each subpart has a continuous array of vertice...
btStridingMeshInterface::btStridingMeshInterface
btStridingMeshInterface()
Definition: btStridingMeshInterface.h:35
btStridingMeshInterface::unLockReadOnlyVertexBase
virtual void unLockReadOnlyVertexBase(int subpart) const =0
btStridingMeshInterface::preallocateVertices
virtual void preallocateVertices(int numverts)=0
btStridingMeshInterface::m_scaling
btVector3 m_scaling
Definition: btStridingMeshInterface.h:30
btVector3
btVector3 can be used to represent 3D points and vectors.
Definition: btVector3.h:82
btCharIndexTripletData
Definition: btStridingMeshInterface.h:113
btCharIndexTripletData::m_pad
char m_pad
Definition: btStridingMeshInterface.h:115
btCharIndexTripletData::m_values
unsigned char m_values[3]
Definition: btStridingMeshInterface.h:114
btIntIndexData
Definition: btStridingMeshInterface.h:96
btIntIndexData::m_value
int m_value
Definition: btStridingMeshInterface.h:97
btMeshPartData
do not change those serialization structures, it requires an updated sBulletDNAstr/sBulletDNAstr64
Definition: btStridingMeshInterface.h:122
btMeshPartData::m_numVertices
int m_numVertices
Definition: btStridingMeshInterface.h:133
btMeshPartData::m_indices16
btShortIntIndexData * m_indices16
Definition: btStridingMeshInterface.h:130
btMeshPartData::m_3indices8
btCharIndexTripletData * m_3indices8
Definition: btStridingMeshInterface.h:128
btMeshPartData::m_vertices3f
btVector3FloatData * m_vertices3f
Definition: btStridingMeshInterface.h:123
btMeshPartData::m_3indices16
btShortIntIndexTripletData * m_3indices16
Definition: btStridingMeshInterface.h:127
btMeshPartData::m_indices32
btIntIndexData * m_indices32
Definition: btStridingMeshInterface.h:126
btMeshPartData::m_numTriangles
int m_numTriangles
Definition: btStridingMeshInterface.h:132
btMeshPartData::m_vertices3d
btVector3DoubleData * m_vertices3d
Definition: btStridingMeshInterface.h:124
btShortIntIndexData
Definition: btStridingMeshInterface.h:101
btShortIntIndexData::m_pad
char m_pad[2]
Definition: btStridingMeshInterface.h:103
btShortIntIndexData::m_value
short m_value
Definition: btStridingMeshInterface.h:102
btShortIntIndexTripletData
Definition: btStridingMeshInterface.h:107
btShortIntIndexTripletData::m_pad
char m_pad[2]
Definition: btStridingMeshInterface.h:109
btShortIntIndexTripletData::m_values
short m_values[3]
Definition: btStridingMeshInterface.h:108
btStridingMeshInterfaceData
do not change those serialization structures, it requires an updated sBulletDNAstr/sBulletDNAstr64
Definition: btStridingMeshInterface.h:139
btStridingMeshInterfaceData::m_meshPartsPtr
btMeshPartData * m_meshPartsPtr
Definition: btStridingMeshInterface.h:140
btStridingMeshInterfaceData::m_numMeshParts
int m_numMeshParts
Definition: btStridingMeshInterface.h:142
btStridingMeshInterfaceData::m_scaling
btVector3FloatData m_scaling
Definition: btStridingMeshInterface.h:141
btStridingMeshInterfaceData::m_padding
char m_padding[4]
Definition: btStridingMeshInterface.h:143
btVector3DoubleData
Definition: btVector3.h:1287
btVector3FloatData
Definition: btVector3.h:1282