bullet: Update to current svn, r2636
[blender.git] / extern / bullet2 / src / BulletCollision / CollisionShapes / btScaledBvhTriangleMeshShape.h
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_SCALED_BVH_TRIANGLE_MESH_SHAPE_H
17 #define BT_SCALED_BVH_TRIANGLE_MESH_SHAPE_H
18
19 #include "BulletCollision/CollisionShapes/btBvhTriangleMeshShape.h"
20
21
22 ///The btScaledBvhTriangleMeshShape allows to instance a scaled version of an existing btBvhTriangleMeshShape.
23 ///Note that each btBvhTriangleMeshShape still can have its own local scaling, independent from this btScaledBvhTriangleMeshShape 'localScaling'
24 ATTRIBUTE_ALIGNED16(class) btScaledBvhTriangleMeshShape : public btConcaveShape
25 {
26         
27         
28         btVector3       m_localScaling;
29
30         btBvhTriangleMeshShape* m_bvhTriMeshShape;
31
32 public:
33
34         BT_DECLARE_ALIGNED_ALLOCATOR();
35
36
37         btScaledBvhTriangleMeshShape(btBvhTriangleMeshShape* childShape,const btVector3& localScaling);
38
39         virtual ~btScaledBvhTriangleMeshShape();
40
41
42         virtual void getAabb(const btTransform& t,btVector3& aabbMin,btVector3& aabbMax) const;
43         virtual void    setLocalScaling(const btVector3& scaling);
44         virtual const btVector3& getLocalScaling() const;
45         virtual void    calculateLocalInertia(btScalar mass,btVector3& inertia) const;
46
47         virtual void    processAllTriangles(btTriangleCallback* callback,const btVector3& aabbMin,const btVector3& aabbMax) const;
48
49         btBvhTriangleMeshShape* getChildShape()
50         {
51                 return m_bvhTriMeshShape;
52         }
53
54         const btBvhTriangleMeshShape*   getChildShape() const
55         {
56                 return m_bvhTriMeshShape;
57         }
58
59         //debugging
60         virtual const char*     getName()const {return "SCALEDBVHTRIANGLEMESH";}
61
62         virtual int     calculateSerializeBufferSize() const;
63
64         ///fills the dataBuffer and returns the struct name (and 0 on failure)
65         virtual const char*     serialize(void* dataBuffer, btSerializer* serializer) const;
66
67 };
68
69 ///do not change those serialization structures, it requires an updated sBulletDNAstr/sBulletDNAstr64
70 struct  btScaledTriangleMeshShapeData
71 {
72         btTriangleMeshShapeData m_trimeshShapeData;
73
74         btVector3FloatData      m_localScaling;
75 };
76
77
78 SIMD_FORCE_INLINE       int     btScaledBvhTriangleMeshShape::calculateSerializeBufferSize() const
79 {
80         return sizeof(btScaledTriangleMeshShapeData);
81 }
82
83
84 ///fills the dataBuffer and returns the struct name (and 0 on failure)
85 SIMD_FORCE_INLINE       const char*     btScaledBvhTriangleMeshShape::serialize(void* dataBuffer, btSerializer* serializer) const
86 {
87         btScaledTriangleMeshShapeData* scaledMeshData = (btScaledTriangleMeshShapeData*) dataBuffer;
88         m_bvhTriMeshShape->serialize(&scaledMeshData->m_trimeshShapeData,serializer);
89         scaledMeshData->m_trimeshShapeData.m_collisionShapeData.m_shapeType = SCALED_TRIANGLE_MESH_SHAPE_PROXYTYPE;
90         m_localScaling.serializeFloat(scaledMeshData->m_localScaling);
91         return "btScaledTriangleMeshShapeData";
92 }
93
94
95 #endif //BT_SCALED_BVH_TRIANGLE_MESH_SHAPE_H