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Diffstat (limited to 'thirdparty/bullet/Bullet3OpenCL/NarrowphaseCollision/b3TriangleIndexVertexArray.h')
-rw-r--r-- | thirdparty/bullet/Bullet3OpenCL/NarrowphaseCollision/b3TriangleIndexVertexArray.h | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/thirdparty/bullet/Bullet3OpenCL/NarrowphaseCollision/b3TriangleIndexVertexArray.h b/thirdparty/bullet/Bullet3OpenCL/NarrowphaseCollision/b3TriangleIndexVertexArray.h new file mode 100644 index 0000000000..d26b2893bc --- /dev/null +++ b/thirdparty/bullet/Bullet3OpenCL/NarrowphaseCollision/b3TriangleIndexVertexArray.h @@ -0,0 +1,133 @@ +/* +Bullet Continuous Collision Detection and Physics Library +Copyright (c) 2003-2009 Erwin Coumans http://bulletphysics.org + +This software is provided 'as-is', without any express or implied warranty. +In no event will the authors be held liable for any damages arising from the use of this software. +Permission is granted to anyone to use this software for any purpose, +including commercial applications, and to alter it and redistribute it freely, +subject to the following restrictions: + +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. +2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. +3. This notice may not be removed or altered from any source distribution. +*/ + +#ifndef B3_TRIANGLE_INDEX_VERTEX_ARRAY_H +#define B3_TRIANGLE_INDEX_VERTEX_ARRAY_H + +#include "b3StridingMeshInterface.h" +#include "Bullet3Common/b3AlignedObjectArray.h" +#include "Bullet3Common/b3Scalar.h" + + +///The b3IndexedMesh indexes a single vertex and index array. Multiple b3IndexedMesh objects can be passed into a b3TriangleIndexVertexArray using addIndexedMesh. +///Instead of the number of indices, we pass the number of triangles. +B3_ATTRIBUTE_ALIGNED16( struct) b3IndexedMesh +{ + B3_DECLARE_ALIGNED_ALLOCATOR(); + + int m_numTriangles; + const unsigned char * m_triangleIndexBase; + // Size in byte of the indices for one triangle (3*sizeof(index_type) if the indices are tightly packed) + int m_triangleIndexStride; + int m_numVertices; + const unsigned char * m_vertexBase; + // Size of a vertex, in bytes + int m_vertexStride; + + // The index type is set when adding an indexed mesh to the + // b3TriangleIndexVertexArray, do not set it manually + PHY_ScalarType m_indexType; + + // The vertex type has a default type similar to Bullet's precision mode (float or double) + // but can be set manually if you for example run Bullet with double precision but have + // mesh data in single precision.. + PHY_ScalarType m_vertexType; + + + b3IndexedMesh() + :m_indexType(PHY_INTEGER), +#ifdef B3_USE_DOUBLE_PRECISION + m_vertexType(PHY_DOUBLE) +#else // B3_USE_DOUBLE_PRECISION + m_vertexType(PHY_FLOAT) +#endif // B3_USE_DOUBLE_PRECISION + { + } +} +; + + +typedef b3AlignedObjectArray<b3IndexedMesh> IndexedMeshArray; + +///The b3TriangleIndexVertexArray allows to access multiple triangle meshes, by indexing into existing triangle/index arrays. +///Additional meshes can be added using addIndexedMesh +///No duplcate is made of the vertex/index data, it only indexes into external vertex/index arrays. +///So keep those arrays around during the lifetime of this b3TriangleIndexVertexArray. +B3_ATTRIBUTE_ALIGNED16( class) b3TriangleIndexVertexArray : public b3StridingMeshInterface +{ +protected: + IndexedMeshArray m_indexedMeshes; + int m_pad[2]; + mutable int m_hasAabb; // using int instead of bool to maintain alignment + mutable b3Vector3 m_aabbMin; + mutable b3Vector3 m_aabbMax; + +public: + + B3_DECLARE_ALIGNED_ALLOCATOR(); + + b3TriangleIndexVertexArray() : m_hasAabb(0) + { + } + + virtual ~b3TriangleIndexVertexArray(); + + //just to be backwards compatible + b3TriangleIndexVertexArray(int numTriangles,int* triangleIndexBase,int triangleIndexStride,int numVertices,b3Scalar* vertexBase,int vertexStride); + + void addIndexedMesh(const b3IndexedMesh& mesh, PHY_ScalarType indexType = PHY_INTEGER) + { + m_indexedMeshes.push_back(mesh); + m_indexedMeshes[m_indexedMeshes.size()-1].m_indexType = indexType; + } + + + 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); + + 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; + + /// unLockVertexBase finishes the access to a subpart of the triangle mesh + /// make a call to unLockVertexBase when the read and write access (using getLockedVertexIndexBase) is finished + virtual void unLockVertexBase(int subpart) {(void)subpart;} + + virtual void unLockReadOnlyVertexBase(int subpart) const {(void)subpart;} + + /// getNumSubParts returns the number of seperate subparts + /// each subpart has a continuous array of vertices and indices + virtual int getNumSubParts() const { + return (int)m_indexedMeshes.size(); + } + + IndexedMeshArray& getIndexedMeshArray() + { + return m_indexedMeshes; + } + + const IndexedMeshArray& getIndexedMeshArray() const + { + return m_indexedMeshes; + } + + virtual void preallocateVertices(int numverts){(void) numverts;} + virtual void preallocateIndices(int numindices){(void) numindices;} + + virtual bool hasPremadeAabb() const; + virtual void setPremadeAabb(const b3Vector3& aabbMin, const b3Vector3& aabbMax ) const; + virtual void getPremadeAabb(b3Vector3* aabbMin, b3Vector3* aabbMax ) const; + +} +; + +#endif //B3_TRIANGLE_INDEX_VERTEX_ARRAY_H |