Vendor thirdparty Bullet source for upcoming physics server backend

1 files changed, 1164 insertions, 0 deletions

diff --git a/thirdparty/bullet/src/BulletCollision/Gimpact/btGImpactShape.h b/thirdparty/bullet/src/BulletCollision/Gimpact/btGImpactShape.h
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+++ b/thirdparty/bullet/src/BulletCollision/Gimpact/btGImpactShape.h
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+/*! \file btGImpactShape.h
+\author Francisco Len Nßjera
+*/
+/*
+This source file is part of GIMPACT Library.
+
+For the latest info, see http://gimpact.sourceforge.net/
+
+Copyright (c) 2007 Francisco Leon Najera. C.C. 80087371.
+email: projectileman@yahoo.com
+
+
+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 GIMPACT_SHAPE_H
+#define GIMPACT_SHAPE_H
+
+#include "BulletCollision/CollisionShapes/btCollisionShape.h"
+#include "BulletCollision/CollisionShapes/btTriangleShape.h"
+#include "BulletCollision/CollisionShapes/btStridingMeshInterface.h"
+#include "BulletCollision/CollisionShapes/btCollisionMargin.h"
+#include "BulletCollision/CollisionDispatch/btCollisionWorld.h"
+#include "BulletCollision/CollisionShapes/btConcaveShape.h"
+#include "BulletCollision/CollisionShapes/btTetrahedronShape.h"
+#include "LinearMath/btVector3.h"
+#include "LinearMath/btTransform.h"
+#include "LinearMath/btMatrix3x3.h"
+#include "LinearMath/btAlignedObjectArray.h"
+
+#include "btGImpactQuantizedBvh.h" // box tree class
+
+
+//! declare Quantized trees, (you can change to float based trees)
+typedef btGImpactQuantizedBvh btGImpactBoxSet;
+
+enum eGIMPACT_SHAPE_TYPE
+{
+	CONST_GIMPACT_COMPOUND_SHAPE = 0,
+	CONST_GIMPACT_TRIMESH_SHAPE_PART,
+	CONST_GIMPACT_TRIMESH_SHAPE
+};
+
+
+
+//! Helper class for tetrahedrons
+class btTetrahedronShapeEx:public btBU_Simplex1to4
+{
+public:
+	btTetrahedronShapeEx()
+	{
+		m_numVertices = 4;
+	}
+
+
+	SIMD_FORCE_INLINE void setVertices(
+		const btVector3 & v0,const btVector3 & v1,
+		const btVector3 & v2,const btVector3 & v3)
+	{
+		m_vertices[0] = v0;
+		m_vertices[1] = v1;
+		m_vertices[2] = v2;
+		m_vertices[3] = v3;
+		recalcLocalAabb();
+	}
+};
+
+
+//! Base class for gimpact shapes
+class btGImpactShapeInterface : public btConcaveShape
+{
+protected:
+    btAABB m_localAABB;
+    bool m_needs_update;
+    btVector3  localScaling;
+    btGImpactBoxSet m_box_set;// optionally boxset
+
+	//! use this function for perfofm refit in bounding boxes
+    //! use this function for perfofm refit in bounding boxes
+    virtual void calcLocalAABB()
+    {
+		lockChildShapes();
+    	if(m_box_set.getNodeCount() == 0)
+    	{
+    		m_box_set.buildSet();
+    	}
+    	else
+    	{
+    		m_box_set.update();
+    	}
+    	unlockChildShapes();
+
+    	m_localAABB = m_box_set.getGlobalBox();
+    }
+
+
+public:
+	btGImpactShapeInterface()
+	{
+		m_shapeType=GIMPACT_SHAPE_PROXYTYPE;
+		m_localAABB.invalidate();
+		m_needs_update = true;
+		localScaling.setValue(1.f,1.f,1.f);
+	}
+
+
+	//! performs refit operation
+	/*!
+	Updates the entire Box set of this shape.
+	\pre postUpdate() must be called for attemps to calculating the box set, else this function
+		will does nothing.
+	\post if m_needs_update == true, then it calls calcLocalAABB();
+	*/
+    SIMD_FORCE_INLINE void updateBound()
+    {
+    	if(!m_needs_update) return;
+    	calcLocalAABB();
+    	m_needs_update  = false;
+    }
+
+    //! If the Bounding box is not updated, then this class attemps to calculate it.
+    /*!
+    \post Calls updateBound() for update the box set.
+    */
+    void getAabb(const btTransform& t,btVector3& aabbMin,btVector3& aabbMax) const
+    {
+        btAABB transformedbox = m_localAABB;
+        transformedbox.appy_transform(t);
+        aabbMin = transformedbox.m_min;
+        aabbMax = transformedbox.m_max;
+    }
+
+    //! Tells to this object that is needed to refit the box set
+    virtual void postUpdate()
+    {
+    	m_needs_update = true;
+    }
+
+	//! Obtains the local box, which is the global calculated box of the total of subshapes
+	SIMD_FORCE_INLINE const btAABB & getLocalBox()
+	{
+		return m_localAABB;
+	}
+
+
+    virtual int	getShapeType() const
+    {
+        return GIMPACT_SHAPE_PROXYTYPE;
+    }
+
+    /*!
+	\post You must call updateBound() for update the box set.
+	*/
+	virtual void	setLocalScaling(const btVector3& scaling)
+	{
+		localScaling = scaling;
+		postUpdate();
+	}
+
+	virtual const btVector3& getLocalScaling() const
+	{
+		return localScaling;
+	}
+
+
+	virtual void setMargin(btScalar margin)
+    {
+    	m_collisionMargin = margin;
+    	int i = getNumChildShapes();
+    	while(i--)
+    	{
+			btCollisionShape* child = getChildShape(i);
+			child->setMargin(margin);
+    	}
+
+		m_needs_update = true;
+    }
+
+
+	//! Subshape member functions
+	//!@{
+
+	//! Base method for determinig which kind of GIMPACT shape we get
+	virtual eGIMPACT_SHAPE_TYPE getGImpactShapeType() const = 0 ;
+
+	//! gets boxset
+	SIMD_FORCE_INLINE const btGImpactBoxSet * getBoxSet() const
+	{
+		return &m_box_set;
+	}
+
+	//! Determines if this class has a hierarchy structure for sorting its primitives
+	SIMD_FORCE_INLINE bool hasBoxSet()  const
+	{
+		if(m_box_set.getNodeCount() == 0) return false;
+		return true;
+	}
+
+	//! Obtains the primitive manager
+	virtual const btPrimitiveManagerBase * getPrimitiveManager()  const = 0;
+
+
+	//! Gets the number of children
+	virtual int	getNumChildShapes() const  = 0;
+
+	//! if true, then its children must get transforms.
+	virtual bool childrenHasTransform() const = 0;
+
+	//! Determines if this shape has triangles
+	virtual bool needsRetrieveTriangles() const = 0;
+
+	//! Determines if this shape has tetrahedrons
+	virtual bool needsRetrieveTetrahedrons() const = 0;
+
+	virtual void getBulletTriangle(int prim_index,btTriangleShapeEx & triangle) const = 0;
+
+	virtual void getBulletTetrahedron(int prim_index,btTetrahedronShapeEx & tetrahedron) const = 0;
+
+
+
+	//! call when reading child shapes
+	virtual void lockChildShapes() const
+	{
+	}
+
+	virtual void unlockChildShapes() const
+	{
+	}
+
+	//! if this trimesh
+	SIMD_FORCE_INLINE void getPrimitiveTriangle(int index,btPrimitiveTriangle & triangle) const
+	{
+		getPrimitiveManager()->get_primitive_triangle(index,triangle);
+	}
+
+
+	//! Retrieves the bound from a child
+    /*!
+    */
+    virtual void getChildAabb(int child_index,const btTransform& t,btVector3& aabbMin,btVector3& aabbMax) const
+    {
+        btAABB child_aabb;
+        getPrimitiveManager()->get_primitive_box(child_index,child_aabb);
+        child_aabb.appy_transform(t);
+        aabbMin = child_aabb.m_min;
+        aabbMax = child_aabb.m_max;
+    }
+
+	//! Gets the children
+	virtual btCollisionShape* getChildShape(int index) = 0;
+
+
+	//! Gets the child
+	virtual const btCollisionShape* getChildShape(int index) const = 0;
+
+	//! Gets the children transform
+	virtual btTransform	getChildTransform(int index) const = 0;
+
+	//! Sets the children transform
+	/*!
+	\post You must call updateBound() for update the box set.
+	*/
+	virtual void setChildTransform(int index, const btTransform & transform) = 0;
+
+	//!@}
+
+
+	//! virtual method for ray collision
+	virtual void rayTest(const btVector3& rayFrom, const btVector3& rayTo, btCollisionWorld::RayResultCallback& resultCallback)  const
+	{
+        (void) rayFrom; (void) rayTo; (void) resultCallback;
+	}
+
+	//! Function for retrieve triangles.
+	/*!
+	It gives the triangles in local space
+	*/
+	virtual void	processAllTriangles(btTriangleCallback* callback,const btVector3& aabbMin,const btVector3& aabbMax) const
+	{
+        (void) callback; (void) aabbMin; (void) aabbMax;
+	}
+
+	//! Function for retrieve triangles.
+	/*!
+	It gives the triangles in local space
+	*/
+	virtual void processAllTrianglesRay(btTriangleCallback* /*callback*/,const btVector3& /*rayFrom*/, const btVector3& /*rayTo*/) const
+	{
+		
+	}
+
+	//!@}
+
+};
+
+
+//! btGImpactCompoundShape allows to handle multiple btCollisionShape objects at once
+/*!
+This class only can manage Convex subshapes
+*/
+class btGImpactCompoundShape	: public btGImpactShapeInterface
+{
+public:
+	//! compound primitive manager
+	class CompoundPrimitiveManager:public btPrimitiveManagerBase
+	{
+	public:
+		virtual ~CompoundPrimitiveManager() {}
+		btGImpactCompoundShape * m_compoundShape;
+
+
+		CompoundPrimitiveManager(const CompoundPrimitiveManager& compound)
+            : btPrimitiveManagerBase()
+		{
+			m_compoundShape = compound.m_compoundShape;
+		}
+
+		CompoundPrimitiveManager(btGImpactCompoundShape * compoundShape)
+		{
+			m_compoundShape = compoundShape;
+		}
+
+		CompoundPrimitiveManager()
+		{
+			m_compoundShape = NULL;
+		}
+
+		virtual bool is_trimesh() const
+		{
+			return false;
+		}
+
+		virtual int get_primitive_count() const
+		{
+			return (int )m_compoundShape->getNumChildShapes();
+		}
+
+		virtual void get_primitive_box(int prim_index ,btAABB & primbox) const
+		{
+			btTransform prim_trans;
+			if(m_compoundShape->childrenHasTransform())
+			{
+				prim_trans = m_compoundShape->getChildTransform(prim_index);
+			}
+			else
+			{
+				prim_trans.setIdentity();
+			}
+			const btCollisionShape* shape = m_compoundShape->getChildShape(prim_index);
+			shape->getAabb(prim_trans,primbox.m_min,primbox.m_max);
+		}
+
+		virtual void get_primitive_triangle(int prim_index,btPrimitiveTriangle & triangle) const
+		{
+			btAssert(0);
+            (void) prim_index; (void) triangle;
+		}
+
+	};
+
+
+
+protected:
+	CompoundPrimitiveManager m_primitive_manager;
+	btAlignedObjectArray<btTransform>		m_childTransforms;
+	btAlignedObjectArray<btCollisionShape*>	m_childShapes;
+
+
+public:
+
+	btGImpactCompoundShape(bool children_has_transform = true)
+	{
+        (void) children_has_transform;
+		m_primitive_manager.m_compoundShape = this;
+		m_box_set.setPrimitiveManager(&m_primitive_manager);
+	}
+
+	virtual ~btGImpactCompoundShape()
+	{
+	}
+
+
+	//! if true, then its children must get transforms.
+	virtual bool childrenHasTransform() const
+	{
+		if(m_childTransforms.size()==0) return false;
+		return true;
+	}
+
+
+	//! Obtains the primitive manager
+	virtual const btPrimitiveManagerBase * getPrimitiveManager()  const
+	{
+		return &m_primitive_manager;
+	}
+
+	//! Obtains the compopund primitive manager
+	SIMD_FORCE_INLINE CompoundPrimitiveManager * getCompoundPrimitiveManager()
+	{
+		return &m_primitive_manager;
+	}
+
+	//! Gets the number of children
+	virtual int	getNumChildShapes() const
+	{
+		return m_childShapes.size();
+	}
+
+
+	//! Use this method for adding children. Only Convex shapes are allowed.
+	void addChildShape(const btTransform& localTransform,btCollisionShape* shape)
+	{
+		btAssert(shape->isConvex());
+		m_childTransforms.push_back(localTransform);
+		m_childShapes.push_back(shape);
+	}
+
+	//! Use this method for adding children. Only Convex shapes are allowed.
+	void addChildShape(btCollisionShape* shape)
+	{
+		btAssert(shape->isConvex());
+		m_childShapes.push_back(shape);
+	}
+
+	//! Gets the children
+	virtual btCollisionShape* getChildShape(int index)
+	{
+		return m_childShapes[index];
+	}
+
+	//! Gets the children
+	virtual const btCollisionShape* getChildShape(int index) const
+	{
+		return m_childShapes[index];
+	}
+
+	//! Retrieves the bound from a child
+    /*!
+    */
+    virtual void getChildAabb(int child_index,const btTransform& t,btVector3& aabbMin,btVector3& aabbMax) const
+    {
+
+    	if(childrenHasTransform())
+    	{
+    		m_childShapes[child_index]->getAabb(t*m_childTransforms[child_index],aabbMin,aabbMax);
+    	}
+    	else
+    	{
+    		m_childShapes[child_index]->getAabb(t,aabbMin,aabbMax);
+    	}
+    }
+
+
+	//! Gets the children transform
+	virtual btTransform	getChildTransform(int index) const
+	{
+		btAssert(m_childTransforms.size() == m_childShapes.size());
+		return m_childTransforms[index];
+	}
+
+	//! Sets the children transform
+	/*!
+	\post You must call updateBound() for update the box set.
+	*/
+	virtual void setChildTransform(int index, const btTransform & transform)
+	{
+		btAssert(m_childTransforms.size() == m_childShapes.size());
+		m_childTransforms[index] = transform;
+		postUpdate();
+	}
+
+	//! Determines if this shape has triangles
+	virtual bool needsRetrieveTriangles() const
+	{
+		return false;
+	}
+
+	//! Determines if this shape has tetrahedrons
+	virtual bool needsRetrieveTetrahedrons() const
+	{
+		return false;
+	}
+
+
+	virtual void getBulletTriangle(int prim_index,btTriangleShapeEx & triangle) const
+	{
+        (void) prim_index; (void) triangle;
+		btAssert(0);
+	}
+
+	virtual void getBulletTetrahedron(int prim_index,btTetrahedronShapeEx & tetrahedron) const
+	{
+        (void) prim_index; (void) tetrahedron;
+		btAssert(0);
+	}
+
+
+	//! Calculates the exact inertia tensor for this shape
+	virtual void	calculateLocalInertia(btScalar mass,btVector3& inertia) const;
+
+	virtual const char*	getName()const
+	{
+		return "GImpactCompound";
+	}
+
+	virtual eGIMPACT_SHAPE_TYPE getGImpactShapeType() const
+	{
+		return CONST_GIMPACT_COMPOUND_SHAPE;
+	}
+
+};
+
+
+
+//! This class manages a sub part of a mesh supplied by the btStridingMeshInterface interface.
+/*!
+- Simply create this shape by passing the btStridingMeshInterface to the constructor btGImpactMeshShapePart, then you must call updateBound() after creating the mesh
+- When making operations with this shape, you must call <b>lock</b> before accessing to the trimesh primitives, and then call <b>unlock</b>
+- You can handle deformable meshes with this shape, by calling postUpdate() every time when changing the mesh vertices.
+
+*/
+class btGImpactMeshShapePart : public btGImpactShapeInterface
+{
+public:
+	//! Trimesh primitive manager
+	/*!
+	Manages the info from btStridingMeshInterface object and controls the Lock/Unlock mechanism
+	*/
+	class TrimeshPrimitiveManager:public btPrimitiveManagerBase
+	{
+	public:
+		btScalar m_margin;
+		btStridingMeshInterface * m_meshInterface;
+		btVector3 m_scale;
+		int m_part;
+		int m_lock_count;
+		const unsigned char *vertexbase;
+		int numverts;
+		PHY_ScalarType type;
+		int stride;
+		const unsigned char *indexbase;
+		int indexstride;
+		int  numfaces;
+		PHY_ScalarType indicestype;
+
+		TrimeshPrimitiveManager()
+		{
+			m_meshInterface = NULL;
+			m_part = 0;
+			m_margin = 0.01f;
+			m_scale = btVector3(1.f,1.f,1.f);
+			m_lock_count = 0;
+			vertexbase = 0;
+			numverts = 0;
+			stride = 0;
+			indexbase = 0;
+			indexstride = 0;
+			numfaces = 0;
+		}
+
+ 		TrimeshPrimitiveManager(const TrimeshPrimitiveManager & manager)
+            : btPrimitiveManagerBase()
+		{
+			m_meshInterface = manager.m_meshInterface;
+			m_part = manager.m_part;
+			m_margin = manager.m_margin;
+			m_scale = manager.m_scale;
+			m_lock_count = 0;
+			vertexbase = 0;
+			numverts = 0;
+			stride = 0;
+			indexbase = 0;
+			indexstride = 0;
+			numfaces = 0;
+
+		}
+
+		TrimeshPrimitiveManager(
+			btStridingMeshInterface * meshInterface,	int part)
+		{
+			m_meshInterface = meshInterface;
+			m_part = part;
+			m_scale = m_meshInterface->getScaling();
+			m_margin = 0.1f;
+			m_lock_count = 0;
+			vertexbase = 0;
+			numverts = 0;
+			stride = 0;
+			indexbase = 0;
+			indexstride = 0;
+			numfaces = 0;
+
+		}
+
+		virtual ~TrimeshPrimitiveManager() {}
+
+		void lock()
+		{
+			if(m_lock_count>0)
+			{
+				m_lock_count++;
+				return;
+			}
+			m_meshInterface->getLockedReadOnlyVertexIndexBase(
+				&vertexbase,numverts,
+				type, stride,&indexbase, indexstride, numfaces,indicestype,m_part);
+
+			m_lock_count = 1;
+		}
+
+		void unlock()
+		{
+			if(m_lock_count == 0) return;
+			if(m_lock_count>1)
+			{
+				--m_lock_count;
+				return;
+			}
+			m_meshInterface->unLockReadOnlyVertexBase(m_part);
+			vertexbase = NULL;
+			m_lock_count = 0;
+		}
+
+		virtual bool is_trimesh() const
+		{
+			return true;
+		}
+
+		virtual int get_primitive_count() const
+		{
+			return (int )numfaces;
+		}
+
+		SIMD_FORCE_INLINE int get_vertex_count() const
+		{
+			return (int )numverts;
+		}
+
+		SIMD_FORCE_INLINE void get_indices(int face_index,unsigned int &i0,unsigned int &i1,unsigned int &i2) const
+		{
+			if(indicestype == PHY_SHORT)
+			{
+				unsigned short* s_indices = (unsigned short *)(indexbase + face_index * indexstride);
+				i0 = s_indices[0];
+				i1 = s_indices[1];
+				i2 = s_indices[2];
+			}
+			else
+			{
+				unsigned int * i_indices = (unsigned int *)(indexbase + face_index*indexstride);
+				i0 = i_indices[0];
+				i1 = i_indices[1];
+				i2 = i_indices[2];
+			}
+		}
+
+		SIMD_FORCE_INLINE void get_vertex(unsigned int vertex_index, btVector3 & vertex) const
+		{
+			if(type == PHY_DOUBLE)
+			{
+				double * dvertices = (double *)(vertexbase + vertex_index*stride);
+				vertex[0] = btScalar(dvertices[0]*m_scale[0]);
+				vertex[1] = btScalar(dvertices[1]*m_scale[1]);
+				vertex[2] = btScalar(dvertices[2]*m_scale[2]);
+			}
+			else
+			{
+				float * svertices = (float *)(vertexbase + vertex_index*stride);
+				vertex[0] = svertices[0]*m_scale[0];
+				vertex[1] = svertices[1]*m_scale[1];
+				vertex[2] = svertices[2]*m_scale[2];
+			}
+		}
+
+		virtual void get_primitive_box(int prim_index ,btAABB & primbox) const
+		{
+			btPrimitiveTriangle  triangle;
+			get_primitive_triangle(prim_index,triangle);
+			primbox.calc_from_triangle_margin(
+				triangle.m_vertices[0],
+				triangle.m_vertices[1],triangle.m_vertices[2],triangle.m_margin);
+		}
+
+		virtual void get_primitive_triangle(int prim_index,btPrimitiveTriangle & triangle) const
+		{
+			unsigned int indices[3];
+			get_indices(prim_index,indices[0],indices[1],indices[2]);
+			get_vertex(indices[0],triangle.m_vertices[0]);
+			get_vertex(indices[1],triangle.m_vertices[1]);
+			get_vertex(indices[2],triangle.m_vertices[2]);
+			triangle.m_margin = m_margin;
+		}
+
+		SIMD_FORCE_INLINE void get_bullet_triangle(int prim_index,btTriangleShapeEx & triangle) const
+		{
+			unsigned int indices[3];
+			get_indices(prim_index,indices[0],indices[1],indices[2]);
+			get_vertex(indices[0],triangle.m_vertices1[0]);
+			get_vertex(indices[1],triangle.m_vertices1[1]);
+			get_vertex(indices[2],triangle.m_vertices1[2]);
+			triangle.setMargin(m_margin);
+		}
+
+	};
+
+
+protected:
+	TrimeshPrimitiveManager m_primitive_manager;
+public:
+
+	btGImpactMeshShapePart()
+	{
+		m_box_set.setPrimitiveManager(&m_primitive_manager);
+	}
+
+    btGImpactMeshShapePart( btStridingMeshInterface * meshInterface, int part );
+    virtual ~btGImpactMeshShapePart();
+
+	//! if true, then its children must get transforms.
+	virtual bool childrenHasTransform() const
+	{
+		return false;
+	}
+
+
+	//! call when reading child shapes
+    virtual void lockChildShapes() const;
+    virtual void unlockChildShapes()  const;
+
+	//! Gets the number of children
+	virtual int	getNumChildShapes() const
+	{
+		return m_primitive_manager.get_primitive_count();
+	}
+
+
+	//! Gets the children
+	virtual btCollisionShape* getChildShape(int index)
+	{
+        (void) index;
+		btAssert(0);
+		return NULL;
+	}
+
+
+
+	//! Gets the child
+	virtual const btCollisionShape* getChildShape(int index) const
+	{
+        (void) index;
+		btAssert(0);
+		return NULL;
+	}
+
+	//! Gets the children transform
+	virtual btTransform	getChildTransform(int index) const
+	{
+        (void) index;
+		btAssert(0);
+		return btTransform();
+	}
+
+	//! Sets the children transform
+	/*!
+	\post You must call updateBound() for update the box set.
+	*/
+	virtual void setChildTransform(int index, const btTransform & transform)
+	{
+        (void) index;
+        (void) transform;
+		btAssert(0);
+	}
+
+
+	//! Obtains the primitive manager
+	virtual const btPrimitiveManagerBase * getPrimitiveManager()  const
+	{
+		return &m_primitive_manager;
+	}
+
+	SIMD_FORCE_INLINE TrimeshPrimitiveManager * getTrimeshPrimitiveManager()
+	{
+		return &m_primitive_manager;
+	}
+
+
+
+
+
+	virtual void	calculateLocalInertia(btScalar mass,btVector3& inertia) const;
+
+
+
+
+	virtual const char*	getName()const
+	{
+		return "GImpactMeshShapePart";
+	}
+
+	virtual eGIMPACT_SHAPE_TYPE getGImpactShapeType() const
+	{
+		return CONST_GIMPACT_TRIMESH_SHAPE_PART;
+	}
+
+	//! Determines if this shape has triangles
+	virtual bool needsRetrieveTriangles() const
+	{
+		return true;
+	}
+
+	//! Determines if this shape has tetrahedrons
+	virtual bool needsRetrieveTetrahedrons() const
+	{
+		return false;
+	}
+
+	virtual void getBulletTriangle(int prim_index,btTriangleShapeEx & triangle) const
+	{
+		m_primitive_manager.get_bullet_triangle(prim_index,triangle);
+	}
+
+	virtual void getBulletTetrahedron(int prim_index,btTetrahedronShapeEx & tetrahedron) const
+	{
+        (void) prim_index;
+        (void) tetrahedron;
+		btAssert(0);
+	}
+
+
+
+	SIMD_FORCE_INLINE int getVertexCount() const
+	{
+		return m_primitive_manager.get_vertex_count();
+	}
+
+	SIMD_FORCE_INLINE void getVertex(int vertex_index, btVector3 & vertex) const
+	{
+		m_primitive_manager.get_vertex(vertex_index,vertex);
+	}
+
+	SIMD_FORCE_INLINE void setMargin(btScalar margin)
+    {
+    	m_primitive_manager.m_margin = margin;
+    	postUpdate();
+    }
+
+    SIMD_FORCE_INLINE btScalar getMargin() const
+    {
+    	return m_primitive_manager.m_margin;
+    }
+
+    virtual void	setLocalScaling(const btVector3& scaling)
+    {
+    	m_primitive_manager.m_scale = scaling;
+    	postUpdate();
+    }
+
+    virtual const btVector3& getLocalScaling() const
+    {
+    	return m_primitive_manager.m_scale;
+    }
+
+    SIMD_FORCE_INLINE int getPart() const
+    {
+    	return (int)m_primitive_manager.m_part;
+    }
+
+	virtual void	processAllTriangles(btTriangleCallback* callback,const btVector3& aabbMin,const btVector3& aabbMax) const;
+	virtual void	processAllTrianglesRay(btTriangleCallback* callback,const btVector3& rayFrom,const btVector3& rayTo) const;
+};
+
+
+//! This class manages a mesh supplied by the btStridingMeshInterface interface.
+/*!
+Set of btGImpactMeshShapePart parts
+- Simply create this shape by passing the btStridingMeshInterface to the constructor btGImpactMeshShape, then you must call updateBound() after creating the mesh
+
+- You can handle deformable meshes with this shape, by calling postUpdate() every time when changing the mesh vertices.
+
+*/
+class btGImpactMeshShape : public btGImpactShapeInterface
+{
+	btStridingMeshInterface* m_meshInterface;
+
+protected:
+	btAlignedObjectArray<btGImpactMeshShapePart*> m_mesh_parts;
+	void buildMeshParts(btStridingMeshInterface * meshInterface)
+	{
+		for (int i=0;i<meshInterface->getNumSubParts() ;++i )
+		{
+			btGImpactMeshShapePart * newpart = new btGImpactMeshShapePart(meshInterface,i);
+			m_mesh_parts.push_back(newpart);
+		}
+	}
+
+	//! use this function for perfofm refit in bounding boxes
+    virtual void calcLocalAABB()
+    {
+    	m_localAABB.invalidate();
+    	int i = m_mesh_parts.size();
+    	while(i--)
+    	{
+    		m_mesh_parts[i]->updateBound();
+    		m_localAABB.merge(m_mesh_parts[i]->getLocalBox());
+    	}
+    }
+
+public:
+	btGImpactMeshShape(btStridingMeshInterface * meshInterface)
+	{
+		m_meshInterface = meshInterface;
+		buildMeshParts(meshInterface);
+	}
+
+	virtual ~btGImpactMeshShape()
+	{
+		int i = m_mesh_parts.size();
+    	while(i--)
+    	{
+			btGImpactMeshShapePart * part = m_mesh_parts[i];
+			delete part;
+    	}
+		m_mesh_parts.clear();
+	}
+
+
+	btStridingMeshInterface* getMeshInterface()
+	{
+		return m_meshInterface;
+	}
+
+	const btStridingMeshInterface* getMeshInterface() const
+	{
+		return m_meshInterface;
+	}
+
+	int getMeshPartCount() const
+	{
+		return m_mesh_parts.size();
+	}
+
+	btGImpactMeshShapePart * getMeshPart(int index)
+	{
+		return m_mesh_parts[index];
+	}
+
+
+
+	const btGImpactMeshShapePart * getMeshPart(int index) const
+	{
+		return m_mesh_parts[index];
+	}
+
+
+	virtual void	setLocalScaling(const btVector3& scaling)
+	{
+		localScaling = scaling;
+
+		int i = m_mesh_parts.size();
+    	while(i--)
+    	{
+			btGImpactMeshShapePart * part = m_mesh_parts[i];
+			part->setLocalScaling(scaling);
+    	}
+
+		m_needs_update = true;
+	}
+
+	virtual void setMargin(btScalar margin)
+    {
+    	m_collisionMargin = margin;
+
+		int i = m_mesh_parts.size();
+    	while(i--)
+    	{
+			btGImpactMeshShapePart * part = m_mesh_parts[i];
+			part->setMargin(margin);
+    	}
+
+		m_needs_update = true;
+    }
+
+	//! Tells to this object that is needed to refit all the meshes
+    virtual void postUpdate()
+    {
+		int i = m_mesh_parts.size();
+    	while(i--)
+    	{
+			btGImpactMeshShapePart * part = m_mesh_parts[i];
+			part->postUpdate();
+    	}
+
+    	m_needs_update = true;
+    }
+
+	virtual void	calculateLocalInertia(btScalar mass,btVector3& inertia) const;
+
+
+	//! Obtains the primitive manager
+	virtual const btPrimitiveManagerBase * getPrimitiveManager()  const
+	{
+		btAssert(0);
+		return NULL;
+	}
+
+
+	//! Gets the number of children
+	virtual int	getNumChildShapes() const
+	{
+		btAssert(0);
+		return 0;
+	}
+
+
+	//! if true, then its children must get transforms.
+	virtual bool childrenHasTransform() const
+	{
+		btAssert(0);
+		return false;
+	}
+
+	//! Determines if this shape has triangles
+	virtual bool needsRetrieveTriangles() const
+	{
+		btAssert(0);
+		return false;
+	}
+
+	//! Determines if this shape has tetrahedrons
+	virtual bool needsRetrieveTetrahedrons() const
+	{
+		btAssert(0);
+		return false;
+	}
+
+	virtual void getBulletTriangle(int prim_index,btTriangleShapeEx & triangle) const
+	{
+        (void) prim_index; (void) triangle;
+		btAssert(0);
+	}
+
+	virtual void getBulletTetrahedron(int prim_index,btTetrahedronShapeEx & tetrahedron) const
+	{
+        (void) prim_index; (void) tetrahedron;
+		btAssert(0);
+	}
+
+	//! call when reading child shapes
+	virtual void lockChildShapes() const
+	{
+		btAssert(0);
+	}
+
+	virtual void unlockChildShapes() const
+	{
+		btAssert(0);
+	}
+
+
+
+
+	//! Retrieves the bound from a child
+    /*!
+    */
+    virtual void getChildAabb(int child_index,const btTransform& t,btVector3& aabbMin,btVector3& aabbMax) const
+    {
+        (void) child_index; (void) t; (void) aabbMin; (void) aabbMax;
+        btAssert(0);
+    }
+
+	//! Gets the children
+	virtual btCollisionShape* getChildShape(int index)
+	{
+        (void) index;
+		btAssert(0);
+		return NULL;
+	}
+
+
+	//! Gets the child
+	virtual const btCollisionShape* getChildShape(int index) const
+	{
+        (void) index;
+		btAssert(0);
+		return NULL;
+	}
+
+	//! Gets the children transform
+	virtual btTransform	getChildTransform(int index) const
+	{
+        (void) index;
+		btAssert(0);
+		return btTransform();
+	}
+
+	//! Sets the children transform
+	/*!
+	\post You must call updateBound() for update the box set.
+	*/
+	virtual void setChildTransform(int index, const btTransform & transform)
+	{
+        (void) index; (void) transform;
+		btAssert(0);
+	}
+
+
+	virtual eGIMPACT_SHAPE_TYPE getGImpactShapeType() const
+	{
+		return CONST_GIMPACT_TRIMESH_SHAPE;
+	}
+
+
+	virtual const char*	getName()const
+	{
+		return "GImpactMesh";
+	}
+
+	virtual void rayTest(const btVector3& rayFrom, const btVector3& rayTo, btCollisionWorld::RayResultCallback& resultCallback)  const;
+
+	//! Function for retrieve triangles.
+	/*!
+	It gives the triangles in local space
+	*/
+	virtual void	processAllTriangles(btTriangleCallback* callback,const btVector3& aabbMin,const btVector3& aabbMax) const;
+
+	virtual void	processAllTrianglesRay (btTriangleCallback* callback,const btVector3& rayFrom,const btVector3& rayTo) const;
+
+	virtual	int	calculateSerializeBufferSize() const;
+
+	///fills the dataBuffer and returns the struct name (and 0 on failure)
+	virtual	const char*	serialize(void* dataBuffer, btSerializer* serializer) const;
+
+};
+
+///do not change those serialization structures, it requires an updated sBulletDNAstr/sBulletDNAstr64
+struct	btGImpactMeshShapeData
+{
+	btCollisionShapeData	m_collisionShapeData;
+
+	btStridingMeshInterfaceData m_meshInterface;
+
+	btVector3FloatData	m_localScaling;
+
+	float	m_collisionMargin;
+
+	int		m_gimpactSubType;
+};
+
+SIMD_FORCE_INLINE	int	btGImpactMeshShape::calculateSerializeBufferSize() const
+{
+	return sizeof(btGImpactMeshShapeData);
+}
+
+
+#endif //GIMPACT_MESH_SHAPE_H