add bullet

libs/bullet/BulletCollision/BroadphaseCollision/btAxisSweep3.cpp

@@ -0,0 +1,37 @@
+
+//Bullet Continuous Collision Detection and Physics Library
+//Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+
+//
+// btAxisSweep3
+//
+// Copyright (c) 2006 Simon Hobbs
+//
+// 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.
+#include "btAxisSweep3.h"
+
+
+btAxisSweep3::btAxisSweep3(const btVector3& worldAabbMin,const btVector3& worldAabbMax, unsigned short int maxHandles, btOverlappingPairCache* pairCache, bool disableRaycastAccelerator)
+:btAxisSweep3Internal<unsigned short int>(worldAabbMin,worldAabbMax,0xfffe,0xffff,maxHandles,pairCache,disableRaycastAccelerator)
+{
+	// 1 handle is reserved as sentinel
+	btAssert(maxHandles > 1 && maxHandles < 32767);
+
+}
+
+
+bt32BitAxisSweep3::bt32BitAxisSweep3(const btVector3& worldAabbMin,const btVector3& worldAabbMax, unsigned int maxHandles , btOverlappingPairCache* pairCache , bool disableRaycastAccelerator)
+:btAxisSweep3Internal<unsigned int>(worldAabbMin,worldAabbMax,0xfffffffe,0x7fffffff,maxHandles,pairCache,disableRaycastAccelerator)
+{
+	// 1 handle is reserved as sentinel
+	btAssert(maxHandles > 1 && maxHandles < 2147483647);
+}

libs/bullet/BulletCollision/BroadphaseCollision/btBroadphaseInterface.h

@@ -0,0 +1,82 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+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		BROADPHASE_INTERFACE_H
+#define 	BROADPHASE_INTERFACE_H
+
+
+
+struct btDispatcherInfo;
+class btDispatcher;
+#include "btBroadphaseProxy.h"
+
+class btOverlappingPairCache;
+
+
+
+struct	btBroadphaseAabbCallback
+{
+	virtual ~btBroadphaseAabbCallback() {}
+	virtual bool	process(const btBroadphaseProxy* proxy) = 0;
+};
+
+
+struct	btBroadphaseRayCallback : public btBroadphaseAabbCallback
+{
+	///added some cached data to accelerate ray-AABB tests
+	btVector3		m_rayDirectionInverse;
+	unsigned int	m_signs[3];
+	btScalar		m_lambda_max;
+
+	virtual ~btBroadphaseRayCallback() {}
+};
+
+#include "LinearMath/btVector3.h"
+
+///The btBroadphaseInterface class provides an interface to detect aabb-overlapping object pairs.
+///Some implementations for this broadphase interface include btAxisSweep3, bt32BitAxisSweep3 and btDbvtBroadphase.
+///The actual overlapping pair management, storage, adding and removing of pairs is dealt by the btOverlappingPairCache class.
+class btBroadphaseInterface
+{
+public:
+	virtual ~btBroadphaseInterface() {}
+
+	virtual btBroadphaseProxy*	createProxy(  const btVector3& aabbMin,  const btVector3& aabbMax,int shapeType,void* userPtr, short int collisionFilterGroup,short int collisionFilterMask, btDispatcher* dispatcher,void* multiSapProxy) =0;
+	virtual void	destroyProxy(btBroadphaseProxy* proxy,btDispatcher* dispatcher)=0;
+	virtual void	setAabb(btBroadphaseProxy* proxy,const btVector3& aabbMin,const btVector3& aabbMax, btDispatcher* dispatcher)=0;
+	virtual void	getAabb(btBroadphaseProxy* proxy,btVector3& aabbMin, btVector3& aabbMax ) const =0;
+
+	virtual void	rayTest(const btVector3& rayFrom,const btVector3& rayTo, btBroadphaseRayCallback& rayCallback, const btVector3& aabbMin=btVector3(0,0,0), const btVector3& aabbMax = btVector3(0,0,0)) = 0;
+
+	virtual void	aabbTest(const btVector3& aabbMin, const btVector3& aabbMax, btBroadphaseAabbCallback& callback) = 0;
+
+	///calculateOverlappingPairs is optional: incremental algorithms (sweep and prune) might do it during the set aabb
+	virtual void	calculateOverlappingPairs(btDispatcher* dispatcher)=0;
+
+	virtual	btOverlappingPairCache*	getOverlappingPairCache()=0;
+	virtual	const btOverlappingPairCache*	getOverlappingPairCache() const =0;
+
+	///getAabb returns the axis aligned bounding box in the 'global' coordinate frame
+	///will add some transform later
+	virtual void getBroadphaseAabb(btVector3& aabbMin,btVector3& aabbMax) const =0;
+
+	///reset broadphase internal structures, to ensure determinism/reproducability
+	virtual void resetPool(btDispatcher* dispatcher) { (void) dispatcher; };
+
+	virtual void	printStats() = 0;
+
+};
+
+#endif //BROADPHASE_INTERFACE_H

libs/bullet/BulletCollision/BroadphaseCollision/btBroadphaseProxy.cpp

@@ -0,0 +1,17 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+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.
+*/
+
+#include "btBroadphaseProxy.h"
+

libs/bullet/BulletCollision/BroadphaseCollision/btBroadphaseProxy.h

@@ -0,0 +1,270 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+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 BROADPHASE_PROXY_H
+#define BROADPHASE_PROXY_H
+
+#include "LinearMath/btScalar.h" //for SIMD_FORCE_INLINE
+#include "LinearMath/btVector3.h"
+#include "LinearMath/btAlignedAllocator.h"
+
+
+/// btDispatcher uses these types
+/// IMPORTANT NOTE:The types are ordered polyhedral, implicit convex and concave
+/// to facilitate type checking
+/// CUSTOM_POLYHEDRAL_SHAPE_TYPE,CUSTOM_CONVEX_SHAPE_TYPE and CUSTOM_CONCAVE_SHAPE_TYPE can be used to extend Bullet without modifying source code
+enum BroadphaseNativeTypes
+{
+	// polyhedral convex shapes
+	BOX_SHAPE_PROXYTYPE,
+	TRIANGLE_SHAPE_PROXYTYPE,
+	TETRAHEDRAL_SHAPE_PROXYTYPE,
+	CONVEX_TRIANGLEMESH_SHAPE_PROXYTYPE,
+	CONVEX_HULL_SHAPE_PROXYTYPE,
+	CONVEX_POINT_CLOUD_SHAPE_PROXYTYPE,
+	CUSTOM_POLYHEDRAL_SHAPE_TYPE,
+//implicit convex shapes
+IMPLICIT_CONVEX_SHAPES_START_HERE,
+	SPHERE_SHAPE_PROXYTYPE,
+	MULTI_SPHERE_SHAPE_PROXYTYPE,
+	CAPSULE_SHAPE_PROXYTYPE,
+	CONE_SHAPE_PROXYTYPE,
+	CONVEX_SHAPE_PROXYTYPE,
+	CYLINDER_SHAPE_PROXYTYPE,
+	UNIFORM_SCALING_SHAPE_PROXYTYPE,
+	MINKOWSKI_SUM_SHAPE_PROXYTYPE,
+	MINKOWSKI_DIFFERENCE_SHAPE_PROXYTYPE,
+	BOX_2D_SHAPE_PROXYTYPE,
+	CONVEX_2D_SHAPE_PROXYTYPE,
+	CUSTOM_CONVEX_SHAPE_TYPE,
+//concave shapes
+CONCAVE_SHAPES_START_HERE,
+	//keep all the convex shapetype below here, for the check IsConvexShape in broadphase proxy!
+	TRIANGLE_MESH_SHAPE_PROXYTYPE,
+	SCALED_TRIANGLE_MESH_SHAPE_PROXYTYPE,
+	///used for demo integration FAST/Swift collision library and Bullet
+	FAST_CONCAVE_MESH_PROXYTYPE,
+	//terrain
+	TERRAIN_SHAPE_PROXYTYPE,
+///Used for GIMPACT Trimesh integration
+	GIMPACT_SHAPE_PROXYTYPE,
+///Multimaterial mesh
+    MULTIMATERIAL_TRIANGLE_MESH_PROXYTYPE,
+	
+	EMPTY_SHAPE_PROXYTYPE,
+	STATIC_PLANE_PROXYTYPE,
+	CUSTOM_CONCAVE_SHAPE_TYPE,
+CONCAVE_SHAPES_END_HERE,
+
+	COMPOUND_SHAPE_PROXYTYPE,
+
+	SOFTBODY_SHAPE_PROXYTYPE,
+	HFFLUID_SHAPE_PROXYTYPE,
+	HFFLUID_BUOYANT_CONVEX_SHAPE_PROXYTYPE,
+	INVALID_SHAPE_PROXYTYPE,
+
+	MAX_BROADPHASE_COLLISION_TYPES
+	
+};
+
+
+///The btBroadphaseProxy is the main class that can be used with the Bullet broadphases. 
+///It stores collision shape type information, collision filter information and a client object, typically a btCollisionObject or btRigidBody.
+ATTRIBUTE_ALIGNED16(struct) btBroadphaseProxy
+{
+
+BT_DECLARE_ALIGNED_ALLOCATOR();
+	
+	///optional filtering to cull potential collisions
+	enum CollisionFilterGroups
+	{
+	        DefaultFilter = 1,
+	        StaticFilter = 2,
+	        KinematicFilter = 4,
+	        DebrisFilter = 8,
+			SensorTrigger = 16,
+			CharacterFilter = 32,
+	        AllFilter = -1 //all bits sets: DefaultFilter | StaticFilter | KinematicFilter | DebrisFilter | SensorTrigger
+	};
+
+	//Usually the client btCollisionObject or Rigidbody class
+	void*	m_clientObject;
+	short int m_collisionFilterGroup;
+	short int m_collisionFilterMask;
+	void*	m_multiSapParentProxy;		
+	int			m_uniqueId;//m_uniqueId is introduced for paircache. could get rid of this, by calculating the address offset etc.
+
+	btVector3	m_aabbMin;
+	btVector3	m_aabbMax;
+
+	SIMD_FORCE_INLINE int getUid() const
+	{
+		return m_uniqueId;
+	}
+
+	//used for memory pools
+	btBroadphaseProxy() :m_clientObject(0),m_multiSapParentProxy(0)
+	{
+	}
+
+	btBroadphaseProxy(const btVector3& aabbMin,const btVector3& aabbMax,void* userPtr,short int collisionFilterGroup, short int collisionFilterMask,void* multiSapParentProxy=0)
+		:m_clientObject(userPtr),
+		m_collisionFilterGroup(collisionFilterGroup),
+		m_collisionFilterMask(collisionFilterMask),
+		m_aabbMin(aabbMin),
+		m_aabbMax(aabbMax)
+	{
+		m_multiSapParentProxy = multiSapParentProxy;
+	}
+
+	
+
+	static SIMD_FORCE_INLINE bool isPolyhedral(int proxyType)
+	{
+		return (proxyType  < IMPLICIT_CONVEX_SHAPES_START_HERE);
+	}
+
+	static SIMD_FORCE_INLINE bool	isConvex(int proxyType)
+	{
+		return (proxyType < CONCAVE_SHAPES_START_HERE);
+	}
+
+	static SIMD_FORCE_INLINE bool	isNonMoving(int proxyType)
+	{
+		return (isConcave(proxyType) && !(proxyType==GIMPACT_SHAPE_PROXYTYPE));
+	}
+
+	static SIMD_FORCE_INLINE bool	isConcave(int proxyType)
+	{
+		return ((proxyType > CONCAVE_SHAPES_START_HERE) &&
+			(proxyType < CONCAVE_SHAPES_END_HERE));
+	}
+	static SIMD_FORCE_INLINE bool	isCompound(int proxyType)
+	{
+		return (proxyType == COMPOUND_SHAPE_PROXYTYPE);
+	}
+
+	static SIMD_FORCE_INLINE bool	isSoftBody(int proxyType)
+	{
+		return (proxyType == SOFTBODY_SHAPE_PROXYTYPE);
+	}
+
+	static SIMD_FORCE_INLINE bool isInfinite(int proxyType)
+	{
+		return (proxyType == STATIC_PLANE_PROXYTYPE);
+	}
+
+	static SIMD_FORCE_INLINE bool isConvex2d(int proxyType)
+	{
+		return (proxyType == BOX_2D_SHAPE_PROXYTYPE) ||	(proxyType == CONVEX_2D_SHAPE_PROXYTYPE);
+	}
+
+	
+}
+;
+
+class btCollisionAlgorithm;
+
+struct btBroadphaseProxy;
+
+
+
+///The btBroadphasePair class contains a pair of aabb-overlapping objects.
+///A btDispatcher can search a btCollisionAlgorithm that performs exact/narrowphase collision detection on the actual collision shapes.
+ATTRIBUTE_ALIGNED16(struct) btBroadphasePair
+{
+	btBroadphasePair ()
+		:
+	m_pProxy0(0),
+		m_pProxy1(0),
+		m_algorithm(0),
+		m_internalInfo1(0)
+	{
+	}
+
+BT_DECLARE_ALIGNED_ALLOCATOR();
+
+	btBroadphasePair(const btBroadphasePair& other)
+		:		m_pProxy0(other.m_pProxy0),
+				m_pProxy1(other.m_pProxy1),
+				m_algorithm(other.m_algorithm),
+				m_internalInfo1(other.m_internalInfo1)
+	{
+	}
+	btBroadphasePair(btBroadphaseProxy& proxy0,btBroadphaseProxy& proxy1)
+	{
+
+		//keep them sorted, so the std::set operations work
+		if (proxy0.m_uniqueId < proxy1.m_uniqueId)
+        { 
+            m_pProxy0 = &proxy0; 
+            m_pProxy1 = &proxy1; 
+        }
+        else 
+        { 
+			m_pProxy0 = &proxy1; 
+            m_pProxy1 = &proxy0; 
+        }
+
+		m_algorithm = 0;
+		m_internalInfo1 = 0;
+
+	}
+	
+	btBroadphaseProxy* m_pProxy0;
+	btBroadphaseProxy* m_pProxy1;
+	
+	mutable btCollisionAlgorithm* m_algorithm;
+	union { void* m_internalInfo1; int m_internalTmpValue;};//don't use this data, it will be removed in future version.
+
+};
+
+/*
+//comparison for set operation, see Solid DT_Encounter
+SIMD_FORCE_INLINE bool operator<(const btBroadphasePair& a, const btBroadphasePair& b) 
+{ 
+    return a.m_pProxy0 < b.m_pProxy0 || 
+        (a.m_pProxy0 == b.m_pProxy0 && a.m_pProxy1 < b.m_pProxy1); 
+}
+*/
+
+
+
+class btBroadphasePairSortPredicate
+{
+	public:
+
+		bool operator() ( const btBroadphasePair& a, const btBroadphasePair& b )
+		{
+			const int uidA0 = a.m_pProxy0 ? a.m_pProxy0->m_uniqueId : -1;
+			const int uidB0 = b.m_pProxy0 ? b.m_pProxy0->m_uniqueId : -1;
+			const int uidA1 = a.m_pProxy1 ? a.m_pProxy1->m_uniqueId : -1;
+			const int uidB1 = b.m_pProxy1 ? b.m_pProxy1->m_uniqueId : -1;
+
+			 return uidA0 > uidB0 || 
+				(a.m_pProxy0 == b.m_pProxy0 && uidA1 > uidB1) ||
+				(a.m_pProxy0 == b.m_pProxy0 && a.m_pProxy1 == b.m_pProxy1 && a.m_algorithm > b.m_algorithm); 
+		}
+};
+
+
+SIMD_FORCE_INLINE bool operator==(const btBroadphasePair& a, const btBroadphasePair& b) 
+{
+	 return (a.m_pProxy0 == b.m_pProxy0) && (a.m_pProxy1 == b.m_pProxy1);
+}
+
+
+#endif //BROADPHASE_PROXY_H
+

libs/bullet/BulletCollision/BroadphaseCollision/btCollisionAlgorithm.cpp

@@ -0,0 +1,23 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+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.
+*/
+
+#include "btCollisionAlgorithm.h"
+#include "btDispatcher.h"
+
+btCollisionAlgorithm::btCollisionAlgorithm(const btCollisionAlgorithmConstructionInfo& ci)
+{
+	m_dispatcher = ci.m_dispatcher1;
+}
+

libs/bullet/BulletCollision/BroadphaseCollision/btCollisionAlgorithm.h

@@ -0,0 +1,80 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+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 COLLISION_ALGORITHM_H
+#define COLLISION_ALGORITHM_H
+
+#include "LinearMath/btScalar.h"
+#include "LinearMath/btAlignedObjectArray.h"
+
+struct btBroadphaseProxy;
+class btDispatcher;
+class btManifoldResult;
+class btCollisionObject;
+struct btDispatcherInfo;
+class	btPersistentManifold;
+
+typedef btAlignedObjectArray<btPersistentManifold*>	btManifoldArray;
+
+struct btCollisionAlgorithmConstructionInfo
+{
+	btCollisionAlgorithmConstructionInfo()
+		:m_dispatcher1(0),
+		m_manifold(0)
+	{
+	}
+	btCollisionAlgorithmConstructionInfo(btDispatcher* dispatcher,int temp)
+		:m_dispatcher1(dispatcher)
+	{
+		(void)temp;
+	}
+
+	btDispatcher*	m_dispatcher1;
+	btPersistentManifold*	m_manifold;
+
+	int	getDispatcherId();
+
+};
+
+
+///btCollisionAlgorithm is an collision interface that is compatible with the Broadphase and btDispatcher.
+///It is persistent over frames
+class btCollisionAlgorithm
+{
+
+protected:
+
+	btDispatcher*	m_dispatcher;
+
+protected:
+	int	getDispatcherId();
+	
+public:
+
+	btCollisionAlgorithm() {};
+
+	btCollisionAlgorithm(const btCollisionAlgorithmConstructionInfo& ci);
+
+	virtual ~btCollisionAlgorithm() {};
+
+	virtual void processCollision (btCollisionObject* body0,btCollisionObject* body1,const btDispatcherInfo& dispatchInfo,btManifoldResult* resultOut) = 0;
+
+	virtual btScalar calculateTimeOfImpact(btCollisionObject* body0,btCollisionObject* body1,const btDispatcherInfo& dispatchInfo,btManifoldResult* resultOut) = 0;
+
+	virtual	void	getAllContactManifolds(btManifoldArray&	manifoldArray) = 0;
+};
+
+
+#endif //COLLISION_ALGORITHM_H

libs/bullet/BulletCollision/BroadphaseCollision/btDbvtBroadphase.cpp

@@ -0,0 +1,796 @@
+/*
+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.
+*/
+
+///btDbvtBroadphase implementation by Nathanael Presson
+
+#include "btDbvtBroadphase.h"
+
+//
+// Profiling
+//
+
+#if DBVT_BP_PROFILE||DBVT_BP_ENABLE_BENCHMARK
+#include <stdio.h>
+#endif
+
+#if DBVT_BP_PROFILE
+struct	ProfileScope
+{
+	__forceinline ProfileScope(btClock& clock,unsigned long& value) :
+	m_clock(&clock),m_value(&value),m_base(clock.getTimeMicroseconds())
+	{
+	}
+	__forceinline ~ProfileScope()
+	{
+		(*m_value)+=m_clock->getTimeMicroseconds()-m_base;
+	}
+	btClock*		m_clock;
+	unsigned long*	m_value;
+	unsigned long	m_base;
+};
+#define	SPC(_value_)	ProfileScope	spc_scope(m_clock,_value_)
+#else
+#define	SPC(_value_)
+#endif
+
+//
+// Helpers
+//
+
+//
+template <typename T>
+static inline void	listappend(T* item,T*& list)
+{
+	item->links[0]=0;
+	item->links[1]=list;
+	if(list) list->links[0]=item;
+	list=item;
+}
+
+//
+template <typename T>
+static inline void	listremove(T* item,T*& list)
+{
+	if(item->links[0]) item->links[0]->links[1]=item->links[1]; else list=item->links[1];
+	if(item->links[1]) item->links[1]->links[0]=item->links[0];
+}
+
+//
+template <typename T>
+static inline int	listcount(T* root)
+{
+	int	n=0;
+	while(root) { ++n;root=root->links[1]; }
+	return(n);
+}
+
+//
+template <typename T>
+static inline void	clear(T& value)
+{
+	static const struct ZeroDummy : T {} zerodummy;
+	value=zerodummy;
+}
+
+//
+// Colliders
+//
+
+/* Tree collider	*/ 
+struct	btDbvtTreeCollider : btDbvt::ICollide
+{
+	btDbvtBroadphase*	pbp;
+	btDbvtProxy*		proxy;
+	btDbvtTreeCollider(btDbvtBroadphase* p) : pbp(p) {}
+	void	Process(const btDbvtNode* na,const btDbvtNode* nb)
+	{
+		if(na!=nb)
+		{
+			btDbvtProxy*	pa=(btDbvtProxy*)na->data;
+			btDbvtProxy*	pb=(btDbvtProxy*)nb->data;
+#if DBVT_BP_SORTPAIRS
+			if(pa->m_uniqueId>pb->m_uniqueId) 
+				btSwap(pa,pb);
+#endif
+			pbp->m_paircache->addOverlappingPair(pa,pb);
+			++pbp->m_newpairs;
+		}
+	}
+	void	Process(const btDbvtNode* n)
+	{
+		Process(n,proxy->leaf);
+	}
+};
+
+//
+// btDbvtBroadphase
+//
+
+//
+btDbvtBroadphase::btDbvtBroadphase(btOverlappingPairCache* paircache)
+{
+	m_deferedcollide	=	false;
+	m_needcleanup		=	true;
+	m_releasepaircache	=	(paircache!=0)?false:true;
+	m_prediction		=	0;
+	m_stageCurrent		=	0;
+	m_fixedleft			=	0;
+	m_fupdates			=	1;
+	m_dupdates			=	0;
+	m_cupdates			=	10;
+	m_newpairs			=	1;
+	m_updates_call		=	0;
+	m_updates_done		=	0;
+	m_updates_ratio		=	0;
+	m_paircache			=	paircache? paircache	: new(btAlignedAlloc(sizeof(btHashedOverlappingPairCache),16)) btHashedOverlappingPairCache();
+	m_gid				=	0;
+	m_pid				=	0;
+	m_cid				=	0;
+	for(int i=0;i<=STAGECOUNT;++i)
+	{
+		m_stageRoots[i]=0;
+	}
+#if DBVT_BP_PROFILE
+	clear(m_profiling);
+#endif
+}
+
+//
+btDbvtBroadphase::~btDbvtBroadphase()
+{
+	if(m_releasepaircache) 
+	{
+		m_paircache->~btOverlappingPairCache();
+		btAlignedFree(m_paircache);
+	}
+}
+
+//
+btBroadphaseProxy*				btDbvtBroadphase::createProxy(	const btVector3& aabbMin,
+															  const btVector3& aabbMax,
+															  int /*shapeType*/,
+															  void* userPtr,
+															  short int collisionFilterGroup,
+															  short int collisionFilterMask,
+															  btDispatcher* /*dispatcher*/,
+															  void* /*multiSapProxy*/)
+{
+	btDbvtProxy*		proxy=new(btAlignedAlloc(sizeof(btDbvtProxy),16)) btDbvtProxy(	aabbMin,aabbMax,userPtr,
+		collisionFilterGroup,
+		collisionFilterMask);
+
+	btDbvtAabbMm aabb = btDbvtVolume::FromMM(aabbMin,aabbMax);
+
+	//bproxy->aabb			=	btDbvtVolume::FromMM(aabbMin,aabbMax);
+	proxy->stage		=	m_stageCurrent;
+	proxy->m_uniqueId	=	++m_gid;
+	proxy->leaf			=	m_sets[0].insert(aabb,proxy);
+	listappend(proxy,m_stageRoots[m_stageCurrent]);
+	if(!m_deferedcollide)
+	{
+		btDbvtTreeCollider	collider(this);
+		collider.proxy=proxy;
+		m_sets[0].collideTV(m_sets[0].m_root,aabb,collider);
+		m_sets[1].collideTV(m_sets[1].m_root,aabb,collider);
+	}
+	return(proxy);
+}
+
+//
+void							btDbvtBroadphase::destroyProxy(	btBroadphaseProxy* absproxy,
+															   btDispatcher* dispatcher)
+{
+	btDbvtProxy*	proxy=(btDbvtProxy*)absproxy;
+	if(proxy->stage==STAGECOUNT)
+		m_sets[1].remove(proxy->leaf);
+	else
+		m_sets[0].remove(proxy->leaf);
+	listremove(proxy,m_stageRoots[proxy->stage]);
+	m_paircache->removeOverlappingPairsContainingProxy(proxy,dispatcher);
+	btAlignedFree(proxy);
+	m_needcleanup=true;
+}
+
+void	btDbvtBroadphase::getAabb(btBroadphaseProxy* absproxy,btVector3& aabbMin, btVector3& aabbMax ) const
+{
+	btDbvtProxy*						proxy=(btDbvtProxy*)absproxy;
+	aabbMin = proxy->m_aabbMin;
+	aabbMax = proxy->m_aabbMax;
+}
+
+struct	BroadphaseRayTester : btDbvt::ICollide
+{
+	btBroadphaseRayCallback& m_rayCallback;
+	BroadphaseRayTester(btBroadphaseRayCallback& orgCallback)
+		:m_rayCallback(orgCallback)
+	{
+	}
+	void					Process(const btDbvtNode* leaf)
+	{
+		btDbvtProxy*	proxy=(btDbvtProxy*)leaf->data;
+		m_rayCallback.process(proxy);
+	}
+};	
+
+void	btDbvtBroadphase::rayTest(const btVector3& rayFrom,const btVector3& rayTo, btBroadphaseRayCallback& rayCallback,const btVector3& aabbMin,const btVector3& aabbMax)
+{
+	BroadphaseRayTester callback(rayCallback);
+
+	m_sets[0].rayTestInternal(	m_sets[0].m_root,
+		rayFrom,
+		rayTo,
+		rayCallback.m_rayDirectionInverse,
+		rayCallback.m_signs,
+		rayCallback.m_lambda_max,
+		aabbMin,
+		aabbMax,
+		callback);
+
+	m_sets[1].rayTestInternal(	m_sets[1].m_root,
+		rayFrom,
+		rayTo,
+		rayCallback.m_rayDirectionInverse,
+		rayCallback.m_signs,
+		rayCallback.m_lambda_max,
+		aabbMin,
+		aabbMax,
+		callback);
+
+}
+
+
+struct	BroadphaseAabbTester : btDbvt::ICollide
+{
+	btBroadphaseAabbCallback& m_aabbCallback;
+	BroadphaseAabbTester(btBroadphaseAabbCallback& orgCallback)
+		:m_aabbCallback(orgCallback)
+	{
+	}
+	void					Process(const btDbvtNode* leaf)
+	{
+		btDbvtProxy*	proxy=(btDbvtProxy*)leaf->data;
+		m_aabbCallback.process(proxy);
+	}
+};	
+
+void	btDbvtBroadphase::aabbTest(const btVector3& aabbMin,const btVector3& aabbMax,btBroadphaseAabbCallback& aabbCallback)
+{
+	BroadphaseAabbTester callback(aabbCallback);
+
+	const ATTRIBUTE_ALIGNED16(btDbvtVolume)	bounds=btDbvtVolume::FromMM(aabbMin,aabbMax);
+		//process all children, that overlap with  the given AABB bounds
+	m_sets[0].collideTV(m_sets[0].m_root,bounds,callback);
+	m_sets[1].collideTV(m_sets[1].m_root,bounds,callback);
+
+}
+
+
+
+//
+void							btDbvtBroadphase::setAabb(		btBroadphaseProxy* absproxy,
+														  const btVector3& aabbMin,
+														  const btVector3& aabbMax,
+														  btDispatcher* /*dispatcher*/)
+{
+	btDbvtProxy*						proxy=(btDbvtProxy*)absproxy;
+	ATTRIBUTE_ALIGNED16(btDbvtVolume)	aabb=btDbvtVolume::FromMM(aabbMin,aabbMax);
+#if DBVT_BP_PREVENTFALSEUPDATE
+	if(NotEqual(aabb,proxy->leaf->volume))
+#endif
+	{
+		bool	docollide=false;
+		if(proxy->stage==STAGECOUNT)
+		{/* fixed -> dynamic set	*/ 
+			m_sets[1].remove(proxy->leaf);
+			proxy->leaf=m_sets[0].insert(aabb,proxy);
+			docollide=true;
+		}
+		else
+		{/* dynamic set				*/ 
+			++m_updates_call;
+			if(Intersect(proxy->leaf->volume,aabb))
+			{/* Moving				*/ 
+
+				const btVector3	delta=aabbMin-proxy->m_aabbMin;
+				btVector3		velocity(((proxy->m_aabbMax-proxy->m_aabbMin)/2)*m_prediction);
+				if(delta[0]<0) velocity[0]=-velocity[0];
+				if(delta[1]<0) velocity[1]=-velocity[1];
+				if(delta[2]<0) velocity[2]=-velocity[2];
+				if	(
+#ifdef DBVT_BP_MARGIN				
+					m_sets[0].update(proxy->leaf,aabb,velocity,DBVT_BP_MARGIN)
+#else
+					m_sets[0].update(proxy->leaf,aabb,velocity)
+#endif
+					)
+				{
+					++m_updates_done;
+					docollide=true;
+				}
+			}
+			else
+			{/* Teleporting			*/ 
+				m_sets[0].update(proxy->leaf,aabb);
+				++m_updates_done;
+				docollide=true;
+			}	
+		}
+		listremove(proxy,m_stageRoots[proxy->stage]);
+		proxy->m_aabbMin = aabbMin;
+		proxy->m_aabbMax = aabbMax;
+		proxy->stage	=	m_stageCurrent;
+		listappend(proxy,m_stageRoots[m_stageCurrent]);
+		if(docollide)
+		{
+			m_needcleanup=true;
+			if(!m_deferedcollide)
+			{
+				btDbvtTreeCollider	collider(this);
+				m_sets[1].collideTTpersistentStack(m_sets[1].m_root,proxy->leaf,collider);
+				m_sets[0].collideTTpersistentStack(m_sets[0].m_root,proxy->leaf,collider);
+			}
+		}	
+	}
+}
+
+
+//
+void							btDbvtBroadphase::setAabbForceUpdate(		btBroadphaseProxy* absproxy,
+														  const btVector3& aabbMin,
+														  const btVector3& aabbMax,
+														  btDispatcher* /*dispatcher*/)
+{
+	btDbvtProxy*						proxy=(btDbvtProxy*)absproxy;
+	ATTRIBUTE_ALIGNED16(btDbvtVolume)	aabb=btDbvtVolume::FromMM(aabbMin,aabbMax);
+	bool	docollide=false;
+	if(proxy->stage==STAGECOUNT)
+	{/* fixed -> dynamic set	*/ 
+		m_sets[1].remove(proxy->leaf);
+		proxy->leaf=m_sets[0].insert(aabb,proxy);
+		docollide=true;
+	}
+	else
+	{/* dynamic set				*/ 
+		++m_updates_call;
+		/* Teleporting			*/ 
+		m_sets[0].update(proxy->leaf,aabb);
+		++m_updates_done;
+		docollide=true;
+	}
+	listremove(proxy,m_stageRoots[proxy->stage]);
+	proxy->m_aabbMin = aabbMin;
+	proxy->m_aabbMax = aabbMax;
+	proxy->stage	=	m_stageCurrent;
+	listappend(proxy,m_stageRoots[m_stageCurrent]);
+	if(docollide)
+	{
+		m_needcleanup=true;
+		if(!m_deferedcollide)
+		{
+			btDbvtTreeCollider	collider(this);
+			m_sets[1].collideTTpersistentStack(m_sets[1].m_root,proxy->leaf,collider);
+			m_sets[0].collideTTpersistentStack(m_sets[0].m_root,proxy->leaf,collider);
+		}
+	}	
+}
+
+//
+void							btDbvtBroadphase::calculateOverlappingPairs(btDispatcher* dispatcher)
+{
+	collide(dispatcher);
+#if DBVT_BP_PROFILE
+	if(0==(m_pid%DBVT_BP_PROFILING_RATE))
+	{	
+		printf("fixed(%u) dynamics(%u) pairs(%u)\r\n",m_sets[1].m_leaves,m_sets[0].m_leaves,m_paircache->getNumOverlappingPairs());
+		unsigned int	total=m_profiling.m_total;
+		if(total<=0) total=1;
+		printf("ddcollide: %u%% (%uus)\r\n",(50+m_profiling.m_ddcollide*100)/total,m_profiling.m_ddcollide/DBVT_BP_PROFILING_RATE);
+		printf("fdcollide: %u%% (%uus)\r\n",(50+m_profiling.m_fdcollide*100)/total,m_profiling.m_fdcollide/DBVT_BP_PROFILING_RATE);
+		printf("cleanup:   %u%% (%uus)\r\n",(50+m_profiling.m_cleanup*100)/total,m_profiling.m_cleanup/DBVT_BP_PROFILING_RATE);
+		printf("total:     %uus\r\n",total/DBVT_BP_PROFILING_RATE);
+		const unsigned long	sum=m_profiling.m_ddcollide+
+			m_profiling.m_fdcollide+
+			m_profiling.m_cleanup;
+		printf("leaked: %u%% (%uus)\r\n",100-((50+sum*100)/total),(total-sum)/DBVT_BP_PROFILING_RATE);
+		printf("job counts: %u%%\r\n",(m_profiling.m_jobcount*100)/((m_sets[0].m_leaves+m_sets[1].m_leaves)*DBVT_BP_PROFILING_RATE));
+		clear(m_profiling);
+		m_clock.reset();
+	}
+#endif
+
+	performDeferredRemoval(dispatcher);
+
+}
+
+void btDbvtBroadphase::performDeferredRemoval(btDispatcher* dispatcher)
+{
+
+	if (m_paircache->hasDeferredRemoval())
+	{
+
+		btBroadphasePairArray&	overlappingPairArray = m_paircache->getOverlappingPairArray();
+
+		//perform a sort, to find duplicates and to sort 'invalid' pairs to the end
+		overlappingPairArray.quickSort(btBroadphasePairSortPredicate());
+
+		int invalidPair = 0;
+
+		
+		int i;
+
+		btBroadphasePair previousPair;
+		previousPair.m_pProxy0 = 0;
+		previousPair.m_pProxy1 = 0;
+		previousPair.m_algorithm = 0;
+		
+		
+		for (i=0;i<overlappingPairArray.size();i++)
+		{
+		
+			btBroadphasePair& pair = overlappingPairArray[i];
+
+			bool isDuplicate = (pair == previousPair);
+
+			previousPair = pair;
+
+			bool needsRemoval = false;
+
+			if (!isDuplicate)
+			{
+				//important to perform AABB check that is consistent with the broadphase
+				btDbvtProxy*		pa=(btDbvtProxy*)pair.m_pProxy0;
+				btDbvtProxy*		pb=(btDbvtProxy*)pair.m_pProxy1;
+				bool hasOverlap = Intersect(pa->leaf->volume,pb->leaf->volume);
+
+				if (hasOverlap)
+				{
+					needsRemoval = false;
+				} else
+				{
+					needsRemoval = true;
+				}
+			} else
+			{
+				//remove duplicate
+				needsRemoval = true;
+				//should have no algorithm
+				btAssert(!pair.m_algorithm);
+			}
+			
+			if (needsRemoval)
+			{
+				m_paircache->cleanOverlappingPair(pair,dispatcher);
+
+				pair.m_pProxy0 = 0;
+				pair.m_pProxy1 = 0;
+				invalidPair++;
+			} 
+			
+		}
+
+		//perform a sort, to sort 'invalid' pairs to the end
+		overlappingPairArray.quickSort(btBroadphasePairSortPredicate());
+		overlappingPairArray.resize(overlappingPairArray.size() - invalidPair);
+	}
+}
+
+//
+void							btDbvtBroadphase::collide(btDispatcher* dispatcher)
+{
+	/*printf("---------------------------------------------------------\n");
+	printf("m_sets[0].m_leaves=%d\n",m_sets[0].m_leaves);
+	printf("m_sets[1].m_leaves=%d\n",m_sets[1].m_leaves);
+	printf("numPairs = %d\n",getOverlappingPairCache()->getNumOverlappingPairs());
+	{
+		int i;
+		for (i=0;i<getOverlappingPairCache()->getNumOverlappingPairs();i++)
+		{
+			printf("pair[%d]=(%d,%d),",i,getOverlappingPairCache()->getOverlappingPairArray()[i].m_pProxy0->getUid(),
+				getOverlappingPairCache()->getOverlappingPairArray()[i].m_pProxy1->getUid());
+		}
+		printf("\n");
+	}
+*/
+
+
+
+	SPC(m_profiling.m_total);
+	/* optimize				*/ 
+	m_sets[0].optimizeIncremental(1+(m_sets[0].m_leaves*m_dupdates)/100);
+	if(m_fixedleft)
+	{
+		const int count=1+(m_sets[1].m_leaves*m_fupdates)/100;
+		m_sets[1].optimizeIncremental(1+(m_sets[1].m_leaves*m_fupdates)/100);
+		m_fixedleft=btMax<int>(0,m_fixedleft-count);
+	}
+	/* dynamic -> fixed set	*/ 
+	m_stageCurrent=(m_stageCurrent+1)%STAGECOUNT;
+	btDbvtProxy*	current=m_stageRoots[m_stageCurrent];
+	if(current)
+	{
+		btDbvtTreeCollider	collider(this);
+		do	{
+			btDbvtProxy*	next=current->links[1];
+			listremove(current,m_stageRoots[current->stage]);
+			listappend(current,m_stageRoots[STAGECOUNT]);
+#if DBVT_BP_ACCURATESLEEPING
+			m_paircache->removeOverlappingPairsContainingProxy(current,dispatcher);
+			collider.proxy=current;
+			btDbvt::collideTV(m_sets[0].m_root,current->aabb,collider);
+			btDbvt::collideTV(m_sets[1].m_root,current->aabb,collider);
+#endif
+			m_sets[0].remove(current->leaf);
+			ATTRIBUTE_ALIGNED16(btDbvtVolume)	curAabb=btDbvtVolume::FromMM(current->m_aabbMin,current->m_aabbMax);
+			current->leaf	=	m_sets[1].insert(curAabb,current);
+			current->stage	=	STAGECOUNT;	
+			current			=	next;
+		} while(current);
+		m_fixedleft=m_sets[1].m_leaves;
+		m_needcleanup=true;
+	}
+	/* collide dynamics		*/ 
+	{
+		btDbvtTreeCollider	collider(this);
+		if(m_deferedcollide)
+		{
+			SPC(m_profiling.m_fdcollide);
+			m_sets[0].collideTTpersistentStack(m_sets[0].m_root,m_sets[1].m_root,collider);
+		}
+		if(m_deferedcollide)
+		{
+			SPC(m_profiling.m_ddcollide);
+			m_sets[0].collideTTpersistentStack(m_sets[0].m_root,m_sets[0].m_root,collider);
+		}
+	}
+	/* clean up				*/ 
+	if(m_needcleanup)
+	{
+		SPC(m_profiling.m_cleanup);
+		btBroadphasePairArray&	pairs=m_paircache->getOverlappingPairArray();
+		if(pairs.size()>0)
+		{
+
+			int			ni=btMin(pairs.size(),btMax<int>(m_newpairs,(pairs.size()*m_cupdates)/100));
+			for(int i=0;i<ni;++i)
+			{
+				btBroadphasePair&	p=pairs[(m_cid+i)%pairs.size()];
+				btDbvtProxy*		pa=(btDbvtProxy*)p.m_pProxy0;
+				btDbvtProxy*		pb=(btDbvtProxy*)p.m_pProxy1;
+				if(!Intersect(pa->leaf->volume,pb->leaf->volume))
+				{
+#if DBVT_BP_SORTPAIRS
+					if(pa->m_uniqueId>pb->m_uniqueId) 
+						btSwap(pa,pb);
+#endif
+					m_paircache->removeOverlappingPair(pa,pb,dispatcher);
+					--ni;--i;
+				}
+			}
+			if(pairs.size()>0) m_cid=(m_cid+ni)%pairs.size(); else m_cid=0;
+		}
+	}
+	++m_pid;
+	m_newpairs=1;
+	m_needcleanup=false;
+	if(m_updates_call>0)
+	{ m_updates_ratio=m_updates_done/(btScalar)m_updates_call; }
+	else
+	{ m_updates_ratio=0; }
+	m_updates_done/=2;
+	m_updates_call/=2;
+}
+
+//
+void							btDbvtBroadphase::optimize()
+{
+	m_sets[0].optimizeTopDown();
+	m_sets[1].optimizeTopDown();
+}
+
+//
+btOverlappingPairCache*			btDbvtBroadphase::getOverlappingPairCache()
+{
+	return(m_paircache);
+}
+
+//
+const btOverlappingPairCache*	btDbvtBroadphase::getOverlappingPairCache() const
+{
+	return(m_paircache);
+}
+
+//
+void							btDbvtBroadphase::getBroadphaseAabb(btVector3& aabbMin,btVector3& aabbMax) const
+{
+
+	ATTRIBUTE_ALIGNED16(btDbvtVolume)	bounds;
+
+	if(!m_sets[0].empty())
+		if(!m_sets[1].empty())	Merge(	m_sets[0].m_root->volume,
+			m_sets[1].m_root->volume,bounds);
+		else
+			bounds=m_sets[0].m_root->volume;
+	else if(!m_sets[1].empty())	bounds=m_sets[1].m_root->volume;
+	else
+		bounds=btDbvtVolume::FromCR(btVector3(0,0,0),0);
+	aabbMin=bounds.Mins();
+	aabbMax=bounds.Maxs();
+}
+
+void btDbvtBroadphase::resetPool(btDispatcher* dispatcher)
+{
+	
+	int totalObjects = m_sets[0].m_leaves + m_sets[1].m_leaves;
+	if (!totalObjects)
+	{
+		//reset internal dynamic tree data structures
+		m_sets[0].clear();
+		m_sets[1].clear();
+		
+		m_deferedcollide	=	false;
+		m_needcleanup		=	true;
+		m_stageCurrent		=	0;
+		m_fixedleft			=	0;
+		m_fupdates			=	1;
+		m_dupdates			=	0;
+		m_cupdates			=	10;
+		m_newpairs			=	1;
+		m_updates_call		=	0;
+		m_updates_done		=	0;
+		m_updates_ratio		=	0;
+		
+		m_gid				=	0;
+		m_pid				=	0;
+		m_cid				=	0;
+		for(int i=0;i<=STAGECOUNT;++i)
+		{
+			m_stageRoots[i]=0;
+		}
+	}
+}
+
+//
+void							btDbvtBroadphase::printStats()
+{}
+
+//
+#if DBVT_BP_ENABLE_BENCHMARK
+
+struct	btBroadphaseBenchmark
+{
+	struct	Experiment
+	{
+		const char*			name;
+		int					object_count;
+		int					update_count;
+		int					spawn_count;
+		int					iterations;
+		btScalar			speed;
+		btScalar			amplitude;
+	};
+	struct	Object
+	{
+		btVector3			center;
+		btVector3			extents;
+		btBroadphaseProxy*	proxy;
+		btScalar			time;
+		void				update(btScalar speed,btScalar amplitude,btBroadphaseInterface* pbi)
+		{
+			time		+=	speed;
+			center[0]	=	btCos(time*(btScalar)2.17)*amplitude+
+				btSin(time)*amplitude/2;
+			center[1]	=	btCos(time*(btScalar)1.38)*amplitude+
+				btSin(time)*amplitude;
+			center[2]	=	btSin(time*(btScalar)0.777)*amplitude;
+			pbi->setAabb(proxy,center-extents,center+extents,0);
+		}
+	};
+	static int		UnsignedRand(int range=RAND_MAX-1)	{ return(rand()%(range+1)); }
+	static btScalar	UnitRand()							{ return(UnsignedRand(16384)/(btScalar)16384); }
+	static void		OutputTime(const char* name,btClock& c,unsigned count=0)
+	{
+		const unsigned long	us=c.getTimeMicroseconds();
+		const unsigned long	ms=(us+500)/1000;
+		const btScalar		sec=us/(btScalar)(1000*1000);
+		if(count>0)
+			printf("%s : %u us (%u ms), %.2f/s\r\n",name,us,ms,count/sec);
+		else
+			printf("%s : %u us (%u ms)\r\n",name,us,ms);
+	}
+};
+
+void							btDbvtBroadphase::benchmark(btBroadphaseInterface* pbi)
+{
+	static const btBroadphaseBenchmark::Experiment		experiments[]=
+	{
+		{"1024o.10%",1024,10,0,8192,(btScalar)0.005,(btScalar)100},
+		/*{"4096o.10%",4096,10,0,8192,(btScalar)0.005,(btScalar)100},
+		{"8192o.10%",8192,10,0,8192,(btScalar)0.005,(btScalar)100},*/
+	};
+	static const int										nexperiments=sizeof(experiments)/sizeof(experiments[0]);
+	btAlignedObjectArray<btBroadphaseBenchmark::Object*>	objects;
+	btClock													wallclock;
+	/* Begin			*/ 
+	for(int iexp=0;iexp<nexperiments;++iexp)
+	{
+		const btBroadphaseBenchmark::Experiment&	experiment=experiments[iexp];
+		const int									object_count=experiment.object_count;
+		const int									update_count=(object_count*experiment.update_count)/100;
+		const int									spawn_count=(object_count*experiment.spawn_count)/100;
+		const btScalar								speed=experiment.speed;	
+		const btScalar								amplitude=experiment.amplitude;
+		printf("Experiment #%u '%s':\r\n",iexp,experiment.name);
+		printf("\tObjects: %u\r\n",object_count);
+		printf("\tUpdate: %u\r\n",update_count);
+		printf("\tSpawn: %u\r\n",spawn_count);
+		printf("\tSpeed: %f\r\n",speed);
+		printf("\tAmplitude: %f\r\n",amplitude);
+		srand(180673);
+		/* Create objects	*/ 
+		wallclock.reset();
+		objects.reserve(object_count);
+		for(int i=0;i<object_count;++i)
+		{
+			btBroadphaseBenchmark::Object*	po=new btBroadphaseBenchmark::Object();
+			po->center[0]=btBroadphaseBenchmark::UnitRand()*50;
+			po->center[1]=btBroadphaseBenchmark::UnitRand()*50;
+			po->center[2]=btBroadphaseBenchmark::UnitRand()*50;
+			po->extents[0]=btBroadphaseBenchmark::UnitRand()*2+2;
+			po->extents[1]=btBroadphaseBenchmark::UnitRand()*2+2;
+			po->extents[2]=btBroadphaseBenchmark::UnitRand()*2+2;
+			po->time=btBroadphaseBenchmark::UnitRand()*2000;
+			po->proxy=pbi->createProxy(po->center-po->extents,po->center+po->extents,0,po,1,1,0,0);
+			objects.push_back(po);
+		}
+		btBroadphaseBenchmark::OutputTime("\tInitialization",wallclock);
+		/* First update		*/ 
+		wallclock.reset();
+		for(int i=0;i<objects.size();++i)
+		{
+			objects[i]->update(speed,amplitude,pbi);
+		}
+		btBroadphaseBenchmark::OutputTime("\tFirst update",wallclock);
+		/* Updates			*/ 
+		wallclock.reset();
+		for(int i=0;i<experiment.iterations;++i)
+		{
+			for(int j=0;j<update_count;++j)
+			{				
+				objects[j]->update(speed,amplitude,pbi);
+			}
+			pbi->calculateOverlappingPairs(0);
+		}
+		btBroadphaseBenchmark::OutputTime("\tUpdate",wallclock,experiment.iterations);
+		/* Clean up			*/ 
+		wallclock.reset();
+		for(int i=0;i<objects.size();++i)
+		{
+			pbi->destroyProxy(objects[i]->proxy,0);
+			delete objects[i];
+		}
+		objects.resize(0);
+		btBroadphaseBenchmark::OutputTime("\tRelease",wallclock);
+	}
+
+}
+#else
+void							btDbvtBroadphase::benchmark(btBroadphaseInterface*)
+{}
+#endif
+
+#if DBVT_BP_PROFILE
+#undef	SPC
+#endif
+

libs/bullet/BulletCollision/BroadphaseCollision/btDbvtBroadphase.h

@@ -0,0 +1,146 @@
+/*
+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.
+*/
+
+///btDbvtBroadphase implementation by Nathanael Presson
+#ifndef BT_DBVT_BROADPHASE_H
+#define BT_DBVT_BROADPHASE_H
+
+#include "BulletCollision/BroadphaseCollision/btDbvt.h"
+#include "BulletCollision/BroadphaseCollision/btOverlappingPairCache.h"
+
+//
+// Compile time config
+//
+
+#define	DBVT_BP_PROFILE					0
+//#define DBVT_BP_SORTPAIRS				1
+#define DBVT_BP_PREVENTFALSEUPDATE		0
+#define DBVT_BP_ACCURATESLEEPING		0
+#define DBVT_BP_ENABLE_BENCHMARK		0
+#define DBVT_BP_MARGIN					(btScalar)0.05
+
+#if DBVT_BP_PROFILE
+#define	DBVT_BP_PROFILING_RATE	256
+#include "LinearMath/btQuickprof.h"
+#endif
+
+//
+// btDbvtProxy
+//
+struct btDbvtProxy : btBroadphaseProxy
+{
+	/* Fields		*/ 
+	//btDbvtAabbMm	aabb;
+	btDbvtNode*		leaf;
+	btDbvtProxy*	links[2];
+	int				stage;
+	/* ctor			*/ 
+	btDbvtProxy(const btVector3& aabbMin,const btVector3& aabbMax,void* userPtr,short int collisionFilterGroup, short int collisionFilterMask) :
+	btBroadphaseProxy(aabbMin,aabbMax,userPtr,collisionFilterGroup,collisionFilterMask)
+	{
+		links[0]=links[1]=0;
+	}
+};
+
+typedef btAlignedObjectArray<btDbvtProxy*>	btDbvtProxyArray;
+
+///The btDbvtBroadphase implements a broadphase using two dynamic AABB bounding volume hierarchies/trees (see btDbvt).
+///One tree is used for static/non-moving objects, and another tree is used for dynamic objects. Objects can move from one tree to the other.
+///This is a very fast broadphase, especially for very dynamic worlds where many objects are moving. Its insert/add and remove of objects is generally faster than the sweep and prune broadphases btAxisSweep3 and bt32BitAxisSweep3.
+struct	btDbvtBroadphase : btBroadphaseInterface
+{
+	/* Config		*/ 
+	enum	{
+		DYNAMIC_SET			=	0,	/* Dynamic set index	*/ 
+		FIXED_SET			=	1,	/* Fixed set index		*/ 
+		STAGECOUNT			=	2	/* Number of stages		*/ 
+	};
+	/* Fields		*/ 
+	btDbvt					m_sets[2];					// Dbvt sets
+	btDbvtProxy*			m_stageRoots[STAGECOUNT+1];	// Stages list
+	btOverlappingPairCache*	m_paircache;				// Pair cache
+	btScalar				m_prediction;				// Velocity prediction
+	int						m_stageCurrent;				// Current stage
+	int						m_fupdates;					// % of fixed updates per frame
+	int						m_dupdates;					// % of dynamic updates per frame
+	int						m_cupdates;					// % of cleanup updates per frame
+	int						m_newpairs;					// Number of pairs created
+	int						m_fixedleft;				// Fixed optimization left
+	unsigned				m_updates_call;				// Number of updates call
+	unsigned				m_updates_done;				// Number of updates done
+	btScalar				m_updates_ratio;			// m_updates_done/m_updates_call
+	int						m_pid;						// Parse id
+	int						m_cid;						// Cleanup index
+	int						m_gid;						// Gen id
+	bool					m_releasepaircache;			// Release pair cache on delete
+	bool					m_deferedcollide;			// Defere dynamic/static collision to collide call
+	bool					m_needcleanup;				// Need to run cleanup?
+#if DBVT_BP_PROFILE
+	btClock					m_clock;
+	struct	{
+		unsigned long		m_total;
+		unsigned long		m_ddcollide;
+		unsigned long		m_fdcollide;
+		unsigned long		m_cleanup;
+		unsigned long		m_jobcount;
+	}				m_profiling;
+#endif
+	/* Methods		*/ 
+	btDbvtBroadphase(btOverlappingPairCache* paircache=0);
+	~btDbvtBroadphase();
+	void							collide(btDispatcher* dispatcher);
+	void							optimize();
+	
+	/* btBroadphaseInterface Implementation	*/
+	btBroadphaseProxy*				createProxy(const btVector3& aabbMin,const btVector3& aabbMax,int shapeType,void* userPtr,short int collisionFilterGroup,short int collisionFilterMask,btDispatcher* dispatcher,void* multiSapProxy);
+	virtual void					destroyProxy(btBroadphaseProxy* proxy,btDispatcher* dispatcher);
+	virtual void					setAabb(btBroadphaseProxy* proxy,const btVector3& aabbMin,const btVector3& aabbMax,btDispatcher* dispatcher);
+	virtual void					rayTest(const btVector3& rayFrom,const btVector3& rayTo, btBroadphaseRayCallback& rayCallback, const btVector3& aabbMin=btVector3(0,0,0), const btVector3& aabbMax = btVector3(0,0,0));
+	virtual void					aabbTest(const btVector3& aabbMin, const btVector3& aabbMax, btBroadphaseAabbCallback& callback);
+
+	virtual void					getAabb(btBroadphaseProxy* proxy,btVector3& aabbMin, btVector3& aabbMax ) const;
+	virtual	void					calculateOverlappingPairs(btDispatcher* dispatcher);
+	virtual	btOverlappingPairCache*	getOverlappingPairCache();
+	virtual	const btOverlappingPairCache*	getOverlappingPairCache() const;
+	virtual	void					getBroadphaseAabb(btVector3& aabbMin,btVector3& aabbMax) const;
+	virtual	void					printStats();
+
+
+	///reset broadphase internal structures, to ensure determinism/reproducability
+	virtual void resetPool(btDispatcher* dispatcher);
+
+	void	performDeferredRemoval(btDispatcher* dispatcher);
+	
+	void	setVelocityPrediction(btScalar prediction)
+	{
+		m_prediction = prediction;
+	}
+	btScalar getVelocityPrediction() const
+	{
+		return m_prediction;
+	}
+
+	///this setAabbForceUpdate is similar to setAabb but always forces the aabb update. 
+	///it is not part of the btBroadphaseInterface but specific to btDbvtBroadphase.
+	///it bypasses certain optimizations that prevent aabb updates (when the aabb shrinks), see
+	///http://code.google.com/p/bullet/issues/detail?id=223
+	void							setAabbForceUpdate(		btBroadphaseProxy* absproxy,const btVector3& aabbMin,const btVector3& aabbMax,btDispatcher* /*dispatcher*/);
+
+	static void						benchmark(btBroadphaseInterface*);
+
+
+};
+
+#endif

libs/bullet/BulletCollision/BroadphaseCollision/btDispatcher.cpp

@@ -0,0 +1,22 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+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.
+*/
+
+#include "btDispatcher.h"
+
+btDispatcher::~btDispatcher()
+{
+
+}
+

libs/bullet/BulletCollision/BroadphaseCollision/btDispatcher.h

@@ -0,0 +1,108 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+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 _DISPATCHER_H
+#define _DISPATCHER_H
+
+#include "LinearMath/btScalar.h"
+
+class btCollisionAlgorithm;
+struct btBroadphaseProxy;
+class btRigidBody;
+class	btCollisionObject;
+class btOverlappingPairCache;
+
+
+class btPersistentManifold;
+class btStackAlloc;
+
+struct btDispatcherInfo
+{
+	enum DispatchFunc
+	{
+		DISPATCH_DISCRETE = 1,
+		DISPATCH_CONTINUOUS
+	};
+	btDispatcherInfo()
+		:m_timeStep(btScalar(0.)),
+		m_stepCount(0),
+		m_dispatchFunc(DISPATCH_DISCRETE),
+		m_timeOfImpact(btScalar(1.)),
+		m_useContinuous(false),
+		m_debugDraw(0),
+		m_enableSatConvex(false),
+		m_enableSPU(true),
+		m_useEpa(true),
+		m_allowedCcdPenetration(btScalar(0.04)),
+		m_useConvexConservativeDistanceUtil(false),
+		m_convexConservativeDistanceThreshold(0.0f),
+		m_convexMaxDistanceUseCPT(false),
+		m_stackAllocator(0)
+	{
+
+	}
+	btScalar	m_timeStep;
+	int			m_stepCount;
+	int			m_dispatchFunc;
+	mutable btScalar	m_timeOfImpact;
+	bool		m_useContinuous;
+	class btIDebugDraw*	m_debugDraw;
+	bool		m_enableSatConvex;
+	bool		m_enableSPU;
+	bool		m_useEpa;
+	btScalar	m_allowedCcdPenetration;
+	bool		m_useConvexConservativeDistanceUtil;
+	btScalar	m_convexConservativeDistanceThreshold;
+	bool		m_convexMaxDistanceUseCPT;
+	btStackAlloc*	m_stackAllocator;
+};
+
+///The btDispatcher interface class can be used in combination with broadphase to dispatch calculations for overlapping pairs.
+///For example for pairwise collision detection, calculating contact points stored in btPersistentManifold or user callbacks (game logic).
+class btDispatcher
+{
+
+
+public:
+	virtual ~btDispatcher() ;
+
+	virtual btCollisionAlgorithm* findAlgorithm(btCollisionObject* body0,btCollisionObject* body1,btPersistentManifold* sharedManifold=0) = 0;
+
+	virtual btPersistentManifold*	getNewManifold(void* body0,void* body1)=0;
+
+	virtual void releaseManifold(btPersistentManifold* manifold)=0;
+
+	virtual void clearManifold(btPersistentManifold* manifold)=0;
+
+	virtual bool	needsCollision(btCollisionObject* body0,btCollisionObject* body1) = 0;
+
+	virtual bool	needsResponse(btCollisionObject* body0,btCollisionObject* body1)=0;
+
+	virtual void	dispatchAllCollisionPairs(btOverlappingPairCache* pairCache,const btDispatcherInfo& dispatchInfo,btDispatcher* dispatcher)  =0;
+
+	virtual int getNumManifolds() const = 0;
+
+	virtual btPersistentManifold* getManifoldByIndexInternal(int index) = 0;
+
+	virtual	btPersistentManifold**	getInternalManifoldPointer() = 0;
+
+	virtual	void* allocateCollisionAlgorithm(int size)  = 0;
+
+	virtual	void freeCollisionAlgorithm(void* ptr) = 0;
+
+};
+
+
+#endif //_DISPATCHER_H

libs/bullet/BulletCollision/BroadphaseCollision/btMultiSapBroadphase.cpp

@@ -0,0 +1,489 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+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.
+*/
+
+#include "btMultiSapBroadphase.h"
+
+#include "btSimpleBroadphase.h"
+#include "LinearMath/btAabbUtil2.h"
+#include "btQuantizedBvh.h"
+
+///	btSapBroadphaseArray	m_sapBroadphases;
+
+///	btOverlappingPairCache*	m_overlappingPairs;
+extern int gOverlappingPairs;
+
+/*
+class btMultiSapSortedOverlappingPairCache : public btSortedOverlappingPairCache
+{
+public:
+
+	virtual btBroadphasePair*	addOverlappingPair(btBroadphaseProxy* proxy0,btBroadphaseProxy* proxy1)
+	{
+		return btSortedOverlappingPairCache::addOverlappingPair((btBroadphaseProxy*)proxy0->m_multiSapParentProxy,(btBroadphaseProxy*)proxy1->m_multiSapParentProxy);
+	}
+};
+
+*/
+
+btMultiSapBroadphase::btMultiSapBroadphase(int /*maxProxies*/,btOverlappingPairCache* pairCache)
+:m_overlappingPairs(pairCache),
+m_optimizedAabbTree(0),
+m_ownsPairCache(false),
+m_invalidPair(0)
+{
+	if (!m_overlappingPairs)
+	{
+		m_ownsPairCache = true;
+		void* mem = btAlignedAlloc(sizeof(btSortedOverlappingPairCache),16);
+		m_overlappingPairs = new (mem)btSortedOverlappingPairCache();
+	}
+
+	struct btMultiSapOverlapFilterCallback : public btOverlapFilterCallback
+	{
+		virtual ~btMultiSapOverlapFilterCallback()
+		{}
+		// return true when pairs need collision
+		virtual bool	needBroadphaseCollision(btBroadphaseProxy* childProxy0,btBroadphaseProxy* childProxy1) const
+		{
+			btBroadphaseProxy* multiProxy0 = (btBroadphaseProxy*)childProxy0->m_multiSapParentProxy;
+			btBroadphaseProxy* multiProxy1 = (btBroadphaseProxy*)childProxy1->m_multiSapParentProxy;
+			
+			bool collides = (multiProxy0->m_collisionFilterGroup & multiProxy1->m_collisionFilterMask) != 0;
+			collides = collides && (multiProxy1->m_collisionFilterGroup & multiProxy0->m_collisionFilterMask);
+	
+			return collides;
+		}
+	};
+
+	void* mem = btAlignedAlloc(sizeof(btMultiSapOverlapFilterCallback),16);
+	m_filterCallback = new (mem)btMultiSapOverlapFilterCallback();
+
+	m_overlappingPairs->setOverlapFilterCallback(m_filterCallback);
+//	mem = btAlignedAlloc(sizeof(btSimpleBroadphase),16);
+//	m_simpleBroadphase = new (mem) btSimpleBroadphase(maxProxies,m_overlappingPairs);
+}
+
+btMultiSapBroadphase::~btMultiSapBroadphase()
+{
+	if (m_ownsPairCache)
+	{
+		m_overlappingPairs->~btOverlappingPairCache();
+		btAlignedFree(m_overlappingPairs);
+	}
+}
+
+
+void	btMultiSapBroadphase::buildTree(const btVector3& bvhAabbMin,const btVector3& bvhAabbMax)
+{
+	m_optimizedAabbTree = new btQuantizedBvh();
+	m_optimizedAabbTree->setQuantizationValues(bvhAabbMin,bvhAabbMax);
+	QuantizedNodeArray&	nodes = m_optimizedAabbTree->getLeafNodeArray();
+	for (int i=0;i<m_sapBroadphases.size();i++)
+	{
+		btQuantizedBvhNode node;
+		btVector3 aabbMin,aabbMax;
+		m_sapBroadphases[i]->getBroadphaseAabb(aabbMin,aabbMax);
+		m_optimizedAabbTree->quantize(&node.m_quantizedAabbMin[0],aabbMin,0);
+		m_optimizedAabbTree->quantize(&node.m_quantizedAabbMax[0],aabbMax,1);
+		int partId = 0;
+		node.m_escapeIndexOrTriangleIndex = (partId<<(31-MAX_NUM_PARTS_IN_BITS)) | i;
+		nodes.push_back(node);
+	}
+	m_optimizedAabbTree->buildInternal();
+}
+
+btBroadphaseProxy*	btMultiSapBroadphase::createProxy(  const btVector3& aabbMin,  const btVector3& aabbMax,int shapeType,void* userPtr, short int collisionFilterGroup,short int collisionFilterMask, btDispatcher* dispatcher,void* /*ignoreMe*/)
+{
+	//void* ignoreMe -> we could think of recursive multi-sap, if someone is interested
+
+	void* mem = btAlignedAlloc(sizeof(btMultiSapProxy),16);
+	btMultiSapProxy* proxy = new (mem)btMultiSapProxy(aabbMin,  aabbMax,shapeType,userPtr, collisionFilterGroup,collisionFilterMask);
+	m_multiSapProxies.push_back(proxy);
+
+	///this should deal with inserting/removal into child broadphases
+	setAabb(proxy,aabbMin,aabbMax,dispatcher);
+	return proxy;
+}
+
+void	btMultiSapBroadphase::destroyProxy(btBroadphaseProxy* /*proxy*/,btDispatcher* /*dispatcher*/)
+{
+	///not yet
+	btAssert(0);
+
+}
+
+
+void	btMultiSapBroadphase::addToChildBroadphase(btMultiSapProxy* parentMultiSapProxy, btBroadphaseProxy* childProxy, btBroadphaseInterface*	childBroadphase)
+{
+	void* mem = btAlignedAlloc(sizeof(btBridgeProxy),16);
+	btBridgeProxy* bridgeProxyRef = new(mem) btBridgeProxy;
+	bridgeProxyRef->m_childProxy = childProxy;
+	bridgeProxyRef->m_childBroadphase = childBroadphase;
+	parentMultiSapProxy->m_bridgeProxies.push_back(bridgeProxyRef);
+}
+
+
+bool boxIsContainedWithinBox(const btVector3& amin,const btVector3& amax,const btVector3& bmin,const btVector3& bmax);
+bool boxIsContainedWithinBox(const btVector3& amin,const btVector3& amax,const btVector3& bmin,const btVector3& bmax)
+{
+return
+amin.getX() >= bmin.getX() && amax.getX() <= bmax.getX() &&
+amin.getY() >= bmin.getY() && amax.getY() <= bmax.getY() &&
+amin.getZ() >= bmin.getZ() && amax.getZ() <= bmax.getZ();
+}
+
+
+
+
+
+
+void	btMultiSapBroadphase::getAabb(btBroadphaseProxy* proxy,btVector3& aabbMin, btVector3& aabbMax ) const
+{
+	btMultiSapProxy* multiProxy = static_cast<btMultiSapProxy*>(proxy);
+	aabbMin = multiProxy->m_aabbMin;
+	aabbMax = multiProxy->m_aabbMax;
+}
+
+void	btMultiSapBroadphase::rayTest(const btVector3& rayFrom,const btVector3& rayTo, btBroadphaseRayCallback& rayCallback, const btVector3& aabbMin,const btVector3& aabbMax)
+{
+	for (int i=0;i<m_multiSapProxies.size();i++)
+	{
+		rayCallback.process(m_multiSapProxies[i]);
+	}
+}
+
+
+//#include <stdio.h>
+
+void	btMultiSapBroadphase::setAabb(btBroadphaseProxy* proxy,const btVector3& aabbMin,const btVector3& aabbMax, btDispatcher* dispatcher)
+{
+	btMultiSapProxy* multiProxy = static_cast<btMultiSapProxy*>(proxy);
+	multiProxy->m_aabbMin = aabbMin;
+	multiProxy->m_aabbMax = aabbMax;
+	
+	
+//	bool fullyContained = false;
+//	bool alreadyInSimple = false;
+	
+
+
+	
+	struct MyNodeOverlapCallback : public btNodeOverlapCallback
+	{
+		btMultiSapBroadphase*	m_multiSap;
+		btMultiSapProxy*		m_multiProxy;
+		btDispatcher*			m_dispatcher;
+
+		MyNodeOverlapCallback(btMultiSapBroadphase* multiSap,btMultiSapProxy* multiProxy,btDispatcher* dispatcher)
+			:m_multiSap(multiSap),
+			m_multiProxy(multiProxy),
+			m_dispatcher(dispatcher)
+		{
+
+		}
+
+		virtual void processNode(int /*nodeSubPart*/, int broadphaseIndex)
+		{
+			btBroadphaseInterface* childBroadphase = m_multiSap->getBroadphaseArray()[broadphaseIndex];
+
+			int containingBroadphaseIndex = -1;
+			//already found?
+			for (int i=0;i<m_multiProxy->m_bridgeProxies.size();i++)
+			{
+
+				if (m_multiProxy->m_bridgeProxies[i]->m_childBroadphase == childBroadphase)
+				{
+					containingBroadphaseIndex = i;
+					break;
+				}
+			}
+			if (containingBroadphaseIndex<0)
+			{
+				//add it
+				btBroadphaseProxy* childProxy = childBroadphase->createProxy(m_multiProxy->m_aabbMin,m_multiProxy->m_aabbMax,m_multiProxy->m_shapeType,m_multiProxy->m_clientObject,m_multiProxy->m_collisionFilterGroup,m_multiProxy->m_collisionFilterMask, m_dispatcher,m_multiProxy);
+				m_multiSap->addToChildBroadphase(m_multiProxy,childProxy,childBroadphase);
+
+			}
+		}
+	};
+
+	MyNodeOverlapCallback	myNodeCallback(this,multiProxy,dispatcher);
+
+
+
+	
+	if (m_optimizedAabbTree)
+		m_optimizedAabbTree->reportAabbOverlappingNodex(&myNodeCallback,aabbMin,aabbMax);
+
+	int i;
+
+	for ( i=0;i<multiProxy->m_bridgeProxies.size();i++)
+	{
+		btVector3 worldAabbMin,worldAabbMax;
+		multiProxy->m_bridgeProxies[i]->m_childBroadphase->getBroadphaseAabb(worldAabbMin,worldAabbMax);
+		bool overlapsBroadphase = TestAabbAgainstAabb2(worldAabbMin,worldAabbMax,multiProxy->m_aabbMin,multiProxy->m_aabbMax);
+		if (!overlapsBroadphase)
+		{
+			//remove it now
+			btBridgeProxy* bridgeProxy = multiProxy->m_bridgeProxies[i];
+
+			btBroadphaseProxy* childProxy = bridgeProxy->m_childProxy;
+			bridgeProxy->m_childBroadphase->destroyProxy(childProxy,dispatcher);
+			
+			multiProxy->m_bridgeProxies.swap( i,multiProxy->m_bridgeProxies.size()-1);
+			multiProxy->m_bridgeProxies.pop_back();
+
+		}
+	}
+
+
+	/*
+
+	if (1)
+	{
+
+		//find broadphase that contain this multiProxy
+		int numChildBroadphases = getBroadphaseArray().size();
+		for (int i=0;i<numChildBroadphases;i++)
+		{
+			btBroadphaseInterface* childBroadphase = getBroadphaseArray()[i];
+			btVector3 worldAabbMin,worldAabbMax;
+			childBroadphase->getBroadphaseAabb(worldAabbMin,worldAabbMax);
+			bool overlapsBroadphase = TestAabbAgainstAabb2(worldAabbMin,worldAabbMax,multiProxy->m_aabbMin,multiProxy->m_aabbMax);
+			
+		//	fullyContained = fullyContained || boxIsContainedWithinBox(worldAabbMin,worldAabbMax,multiProxy->m_aabbMin,multiProxy->m_aabbMax);
+			int containingBroadphaseIndex = -1;
+			
+			//if already contains this
+			
+			for (int i=0;i<multiProxy->m_bridgeProxies.size();i++)
+			{
+				if (multiProxy->m_bridgeProxies[i]->m_childBroadphase == childBroadphase)
+				{
+					containingBroadphaseIndex = i;
+				}
+				alreadyInSimple = alreadyInSimple || (multiProxy->m_bridgeProxies[i]->m_childBroadphase == m_simpleBroadphase);
+			}
+
+			if (overlapsBroadphase)
+			{
+				if (containingBroadphaseIndex<0)
+				{
+					btBroadphaseProxy* childProxy = childBroadphase->createProxy(aabbMin,aabbMax,multiProxy->m_shapeType,multiProxy->m_clientObject,multiProxy->m_collisionFilterGroup,multiProxy->m_collisionFilterMask, dispatcher);
+					childProxy->m_multiSapParentProxy = multiProxy;
+					addToChildBroadphase(multiProxy,childProxy,childBroadphase);
+				}
+			} else
+			{
+				if (containingBroadphaseIndex>=0)
+				{
+					//remove
+					btBridgeProxy* bridgeProxy = multiProxy->m_bridgeProxies[containingBroadphaseIndex];
+
+					btBroadphaseProxy* childProxy = bridgeProxy->m_childProxy;
+					bridgeProxy->m_childBroadphase->destroyProxy(childProxy,dispatcher);
+					
+					multiProxy->m_bridgeProxies.swap( containingBroadphaseIndex,multiProxy->m_bridgeProxies.size()-1);
+					multiProxy->m_bridgeProxies.pop_back();
+				}
+			}
+		}
+
+
+		///If we are in no other child broadphase, stick the proxy in the global 'simple' broadphase (brute force)
+		///hopefully we don't end up with many entries here (can assert/provide feedback on stats)
+		if (0)//!multiProxy->m_bridgeProxies.size())
+		{
+			///we don't pass the userPtr but our multisap proxy. We need to patch this, before processing an actual collision
+			///this is needed to be able to calculate the aabb overlap
+			btBroadphaseProxy* childProxy = m_simpleBroadphase->createProxy(aabbMin,aabbMax,multiProxy->m_shapeType,multiProxy->m_clientObject,multiProxy->m_collisionFilterGroup,multiProxy->m_collisionFilterMask, dispatcher);
+			childProxy->m_multiSapParentProxy = multiProxy;
+			addToChildBroadphase(multiProxy,childProxy,m_simpleBroadphase);
+		}
+	}
+
+	if (!multiProxy->m_bridgeProxies.size())
+	{
+		///we don't pass the userPtr but our multisap proxy. We need to patch this, before processing an actual collision
+		///this is needed to be able to calculate the aabb overlap
+		btBroadphaseProxy* childProxy = m_simpleBroadphase->createProxy(aabbMin,aabbMax,multiProxy->m_shapeType,multiProxy->m_clientObject,multiProxy->m_collisionFilterGroup,multiProxy->m_collisionFilterMask, dispatcher);
+		childProxy->m_multiSapParentProxy = multiProxy;
+		addToChildBroadphase(multiProxy,childProxy,m_simpleBroadphase);
+	}
+*/
+
+
+	//update
+	for ( i=0;i<multiProxy->m_bridgeProxies.size();i++)
+	{
+		btBridgeProxy* bridgeProxyRef = multiProxy->m_bridgeProxies[i];
+		bridgeProxyRef->m_childBroadphase->setAabb(bridgeProxyRef->m_childProxy,aabbMin,aabbMax,dispatcher);
+	}
+
+}
+bool stopUpdating=false;
+
+
+
+class btMultiSapBroadphasePairSortPredicate
+{
+	public:
+
+		bool operator() ( const btBroadphasePair& a1, const btBroadphasePair& b1 )
+		{
+				btMultiSapBroadphase::btMultiSapProxy* aProxy0 = a1.m_pProxy0 ? (btMultiSapBroadphase::btMultiSapProxy*)a1.m_pProxy0->m_multiSapParentProxy : 0;
+				btMultiSapBroadphase::btMultiSapProxy* aProxy1 = a1.m_pProxy1 ? (btMultiSapBroadphase::btMultiSapProxy*)a1.m_pProxy1->m_multiSapParentProxy : 0;
+				btMultiSapBroadphase::btMultiSapProxy* bProxy0 = b1.m_pProxy0 ? (btMultiSapBroadphase::btMultiSapProxy*)b1.m_pProxy0->m_multiSapParentProxy : 0;
+				btMultiSapBroadphase::btMultiSapProxy* bProxy1 = b1.m_pProxy1 ? (btMultiSapBroadphase::btMultiSapProxy*)b1.m_pProxy1->m_multiSapParentProxy : 0;
+
+				 return aProxy0 > bProxy0 || 
+					(aProxy0 == bProxy0 && aProxy1 > bProxy1) ||
+					(aProxy0 == bProxy0 && aProxy1 == bProxy1 && a1.m_algorithm > b1.m_algorithm); 
+		}
+};
+
+
+        ///calculateOverlappingPairs is optional: incremental algorithms (sweep and prune) might do it during the set aabb
+void    btMultiSapBroadphase::calculateOverlappingPairs(btDispatcher* dispatcher)
+{
+
+//	m_simpleBroadphase->calculateOverlappingPairs(dispatcher);
+
+	if (!stopUpdating && getOverlappingPairCache()->hasDeferredRemoval())
+	{
+	
+		btBroadphasePairArray&	overlappingPairArray = getOverlappingPairCache()->getOverlappingPairArray();
+
+	//	quicksort(overlappingPairArray,0,overlappingPairArray.size());
+
+		overlappingPairArray.quickSort(btMultiSapBroadphasePairSortPredicate());
+
+		//perform a sort, to find duplicates and to sort 'invalid' pairs to the end
+	//	overlappingPairArray.heapSort(btMultiSapBroadphasePairSortPredicate());
+
+		overlappingPairArray.resize(overlappingPairArray.size() - m_invalidPair);
+		m_invalidPair = 0;
+
+		
+		int i;
+
+		btBroadphasePair previousPair;
+		previousPair.m_pProxy0 = 0;
+		previousPair.m_pProxy1 = 0;
+		previousPair.m_algorithm = 0;
+		
+		
+		for (i=0;i<overlappingPairArray.size();i++)
+		{
+		
+			btBroadphasePair& pair = overlappingPairArray[i];
+
+			btMultiSapProxy* aProxy0 = pair.m_pProxy0 ? (btMultiSapProxy*)pair.m_pProxy0->m_multiSapParentProxy : 0;
+			btMultiSapProxy* aProxy1 = pair.m_pProxy1 ? (btMultiSapProxy*)pair.m_pProxy1->m_multiSapParentProxy : 0;
+			btMultiSapProxy* bProxy0 = previousPair.m_pProxy0 ? (btMultiSapProxy*)previousPair.m_pProxy0->m_multiSapParentProxy : 0;
+			btMultiSapProxy* bProxy1 = previousPair.m_pProxy1 ? (btMultiSapProxy*)previousPair.m_pProxy1->m_multiSapParentProxy : 0;
+
+			bool isDuplicate = (aProxy0 == bProxy0) && (aProxy1 == bProxy1);
+			
+			previousPair = pair;
+
+			bool needsRemoval = false;
+
+			if (!isDuplicate)
+			{
+				bool hasOverlap = testAabbOverlap(pair.m_pProxy0,pair.m_pProxy1);
+
+				if (hasOverlap)
+				{
+					needsRemoval = false;//callback->processOverlap(pair);
+				} else
+				{
+					needsRemoval = true;
+				}
+			} else
+			{
+				//remove duplicate
+				needsRemoval = true;
+				//should have no algorithm
+				btAssert(!pair.m_algorithm);
+			}
+			
+			if (needsRemoval)
+			{
+				getOverlappingPairCache()->cleanOverlappingPair(pair,dispatcher);
+
+		//		m_overlappingPairArray.swap(i,m_overlappingPairArray.size()-1);
+		//		m_overlappingPairArray.pop_back();
+				pair.m_pProxy0 = 0;
+				pair.m_pProxy1 = 0;
+				m_invalidPair++;
+				gOverlappingPairs--;
+			} 
+			
+		}
+
+	///if you don't like to skip the invalid pairs in the array, execute following code:
+	#define CLEAN_INVALID_PAIRS 1
+	#ifdef CLEAN_INVALID_PAIRS
+
+		//perform a sort, to sort 'invalid' pairs to the end
+		//overlappingPairArray.heapSort(btMultiSapBroadphasePairSortPredicate());
+		overlappingPairArray.quickSort(btMultiSapBroadphasePairSortPredicate());
+
+		overlappingPairArray.resize(overlappingPairArray.size() - m_invalidPair);
+		m_invalidPair = 0;
+	#endif//CLEAN_INVALID_PAIRS
+		
+		//printf("overlappingPairArray.size()=%d\n",overlappingPairArray.size());
+	}
+
+
+}
+
+
+bool	btMultiSapBroadphase::testAabbOverlap(btBroadphaseProxy* childProxy0,btBroadphaseProxy* childProxy1)
+{
+	btMultiSapProxy* multiSapProxy0 = (btMultiSapProxy*)childProxy0->m_multiSapParentProxy;
+		btMultiSapProxy* multiSapProxy1 = (btMultiSapProxy*)childProxy1->m_multiSapParentProxy;
+
+		return	TestAabbAgainstAabb2(multiSapProxy0->m_aabbMin,multiSapProxy0->m_aabbMax,
+			multiSapProxy1->m_aabbMin,multiSapProxy1->m_aabbMax);
+		
+}
+
+
+void	btMultiSapBroadphase::printStats()
+{
+/*	printf("---------------------------------\n");
+	
+		printf("btMultiSapBroadphase.h\n");
+		printf("numHandles = %d\n",m_multiSapProxies.size());
+			//find broadphase that contain this multiProxy
+		int numChildBroadphases = getBroadphaseArray().size();
+		for (int i=0;i<numChildBroadphases;i++)
+		{
+
+			btBroadphaseInterface* childBroadphase = getBroadphaseArray()[i];
+			childBroadphase->printStats();
+
+		}
+		*/
+
+}
+
+void btMultiSapBroadphase::resetPool(btDispatcher* dispatcher)
+{
+	// not yet
+}

libs/bullet/BulletCollision/BroadphaseCollision/btMultiSapBroadphase.h

@@ -0,0 +1,151 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+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 BT_MULTI_SAP_BROADPHASE
+#define BT_MULTI_SAP_BROADPHASE
+
+#include "btBroadphaseInterface.h"
+#include "LinearMath/btAlignedObjectArray.h"
+#include "btOverlappingPairCache.h"
+
+
+class btBroadphaseInterface;
+class btSimpleBroadphase;
+
+
+typedef btAlignedObjectArray<btBroadphaseInterface*> btSapBroadphaseArray;
+
+///The btMultiSapBroadphase is a research project, not recommended to use in production. Use btAxisSweep3 or btDbvtBroadphase instead.
+///The btMultiSapBroadphase is a broadphase that contains multiple SAP broadphases.
+///The user can add SAP broadphases that cover the world. A btBroadphaseProxy can be in multiple child broadphases at the same time.
+///A btQuantizedBvh acceleration structures finds overlapping SAPs for each btBroadphaseProxy.
+///See http://www.continuousphysics.com/Bullet/phpBB2/viewtopic.php?t=328
+///and http://www.continuousphysics.com/Bullet/phpBB2/viewtopic.php?t=1329
+class btMultiSapBroadphase :public btBroadphaseInterface
+{
+	btSapBroadphaseArray	m_sapBroadphases;
+	
+	btSimpleBroadphase*		m_simpleBroadphase;
+
+	btOverlappingPairCache*	m_overlappingPairs;
+
+	class btQuantizedBvh*			m_optimizedAabbTree;
+
+
+	bool					m_ownsPairCache;
+	
+	btOverlapFilterCallback*	m_filterCallback;
+
+	int			m_invalidPair;
+
+	struct	btBridgeProxy
+	{
+		btBroadphaseProxy*		m_childProxy;
+		btBroadphaseInterface*	m_childBroadphase;
+	};
+
+
+public:
+
+	struct	btMultiSapProxy	: public btBroadphaseProxy
+	{
+
+		///array with all the entries that this proxy belongs to
+		btAlignedObjectArray<btBridgeProxy*> m_bridgeProxies;
+		btVector3	m_aabbMin;
+		btVector3	m_aabbMax;
+
+		int	m_shapeType;
+
+/*		void*	m_userPtr;
+		short int	m_collisionFilterGroup;
+		short int	m_collisionFilterMask;
+*/
+		btMultiSapProxy(const btVector3& aabbMin,  const btVector3& aabbMax,int shapeType,void* userPtr, short int collisionFilterGroup,short int collisionFilterMask)
+			:btBroadphaseProxy(aabbMin,aabbMax,userPtr,collisionFilterGroup,collisionFilterMask),
+			m_aabbMin(aabbMin),
+			m_aabbMax(aabbMax),
+			m_shapeType(shapeType)
+		{
+			m_multiSapParentProxy =this;
+		}
+
+		
+	};
+
+protected:
+
+
+	btAlignedObjectArray<btMultiSapProxy*> m_multiSapProxies;
+
+public:
+
+	btMultiSapBroadphase(int maxProxies = 16384,btOverlappingPairCache* pairCache=0);
+
+
+	btSapBroadphaseArray&	getBroadphaseArray()
+	{
+		return m_sapBroadphases;
+	}
+
+	const btSapBroadphaseArray&	getBroadphaseArray() const
+	{
+		return m_sapBroadphases;
+	}
+
+	virtual ~btMultiSapBroadphase();
+
+	virtual btBroadphaseProxy*	createProxy(  const btVector3& aabbMin,  const btVector3& aabbMax,int shapeType,void* userPtr, short int collisionFilterGroup,short int collisionFilterMask, btDispatcher* dispatcher,void* multiSapProxy);
+	virtual void	destroyProxy(btBroadphaseProxy* proxy,btDispatcher* dispatcher);
+	virtual void	setAabb(btBroadphaseProxy* proxy,const btVector3& aabbMin,const btVector3& aabbMax, btDispatcher* dispatcher);
+	virtual void	getAabb(btBroadphaseProxy* proxy,btVector3& aabbMin, btVector3& aabbMax ) const;
+
+	virtual void	rayTest(const btVector3& rayFrom,const btVector3& rayTo, btBroadphaseRayCallback& rayCallback,const btVector3& aabbMin=btVector3(0,0,0),const btVector3& aabbMax=btVector3(0,0,0));
+
+	void	addToChildBroadphase(btMultiSapProxy* parentMultiSapProxy, btBroadphaseProxy* childProxy, btBroadphaseInterface*	childBroadphase);
+
+	///calculateOverlappingPairs is optional: incremental algorithms (sweep and prune) might do it during the set aabb
+	virtual void	calculateOverlappingPairs(btDispatcher* dispatcher);
+
+	bool	testAabbOverlap(btBroadphaseProxy* proxy0,btBroadphaseProxy* proxy1);
+
+	virtual	btOverlappingPairCache*	getOverlappingPairCache()
+	{
+		return m_overlappingPairs;
+	}
+	virtual	const btOverlappingPairCache*	getOverlappingPairCache() const
+	{
+		return m_overlappingPairs;
+	}
+
+	///getAabb returns the axis aligned bounding box in the 'global' coordinate frame
+	///will add some transform later
+	virtual void getBroadphaseAabb(btVector3& aabbMin,btVector3& aabbMax) const
+	{
+		aabbMin.setValue(-BT_LARGE_FLOAT,-BT_LARGE_FLOAT,-BT_LARGE_FLOAT);
+		aabbMax.setValue(BT_LARGE_FLOAT,BT_LARGE_FLOAT,BT_LARGE_FLOAT);
+	}
+
+	void	buildTree(const btVector3& bvhAabbMin,const btVector3& bvhAabbMax);
+
+	virtual void	printStats();
+
+	void quicksort (btBroadphasePairArray& a, int lo, int hi);
+
+	///reset broadphase internal structures, to ensure determinism/reproducability
+	virtual void resetPool(btDispatcher* dispatcher);
+
+};
+
+#endif //BT_MULTI_SAP_BROADPHASE

libs/bullet/BulletCollision/BroadphaseCollision/btOverlappingPairCache.cpp

@@ -0,0 +1,633 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+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.
+*/
+
+
+
+#include "btOverlappingPairCache.h"
+
+#include "btDispatcher.h"
+#include "btCollisionAlgorithm.h"
+#include "LinearMath/btAabbUtil2.h"
+
+#include <stdio.h>
+
+int	gOverlappingPairs = 0;
+
+int gRemovePairs =0;
+int gAddedPairs =0;
+int gFindPairs =0;
+
+
+
+
+btHashedOverlappingPairCache::btHashedOverlappingPairCache():
+	m_overlapFilterCallback(0),
+	m_blockedForChanges(false),
+	m_ghostPairCallback(0)
+{
+	int initialAllocatedSize= 2;
+	m_overlappingPairArray.reserve(initialAllocatedSize);
+	growTables();
+}
+
+
+
+
+btHashedOverlappingPairCache::~btHashedOverlappingPairCache()
+{
+}
+
+
+
+void	btHashedOverlappingPairCache::cleanOverlappingPair(btBroadphasePair& pair,btDispatcher* dispatcher)
+{
+	if (pair.m_algorithm)
+	{
+		{
+			pair.m_algorithm->~btCollisionAlgorithm();
+			dispatcher->freeCollisionAlgorithm(pair.m_algorithm);
+			pair.m_algorithm=0;
+		}
+	}
+}
+
+
+
+
+void	btHashedOverlappingPairCache::cleanProxyFromPairs(btBroadphaseProxy* proxy,btDispatcher* dispatcher)
+{
+
+	class	CleanPairCallback : public btOverlapCallback
+	{
+		btBroadphaseProxy* m_cleanProxy;
+		btOverlappingPairCache*	m_pairCache;
+		btDispatcher* m_dispatcher;
+
+	public:
+		CleanPairCallback(btBroadphaseProxy* cleanProxy,btOverlappingPairCache* pairCache,btDispatcher* dispatcher)
+			:m_cleanProxy(cleanProxy),
+			m_pairCache(pairCache),
+			m_dispatcher(dispatcher)
+		{
+		}
+		virtual	bool	processOverlap(btBroadphasePair& pair)
+		{
+			if ((pair.m_pProxy0 == m_cleanProxy) ||
+				(pair.m_pProxy1 == m_cleanProxy))
+			{
+				m_pairCache->cleanOverlappingPair(pair,m_dispatcher);
+			}
+			return false;
+		}
+		
+	};
+
+	CleanPairCallback cleanPairs(proxy,this,dispatcher);
+
+	processAllOverlappingPairs(&cleanPairs,dispatcher);
+
+}
+
+
+
+
+void	btHashedOverlappingPairCache::removeOverlappingPairsContainingProxy(btBroadphaseProxy* proxy,btDispatcher* dispatcher)
+{
+
+	class	RemovePairCallback : public btOverlapCallback
+	{
+		btBroadphaseProxy* m_obsoleteProxy;
+
+	public:
+		RemovePairCallback(btBroadphaseProxy* obsoleteProxy)
+			:m_obsoleteProxy(obsoleteProxy)
+		{
+		}
+		virtual	bool	processOverlap(btBroadphasePair& pair)
+		{
+			return ((pair.m_pProxy0 == m_obsoleteProxy) ||
+				(pair.m_pProxy1 == m_obsoleteProxy));
+		}
+		
+	};
+
+
+	RemovePairCallback removeCallback(proxy);
+
+	processAllOverlappingPairs(&removeCallback,dispatcher);
+}
+
+
+
+
+
+btBroadphasePair* btHashedOverlappingPairCache::findPair(btBroadphaseProxy* proxy0, btBroadphaseProxy* proxy1)
+{
+	gFindPairs++;
+	if(proxy0->m_uniqueId>proxy1->m_uniqueId) 
+		btSwap(proxy0,proxy1);
+	int proxyId1 = proxy0->getUid();
+	int proxyId2 = proxy1->getUid();
+
+	/*if (proxyId1 > proxyId2) 
+		btSwap(proxyId1, proxyId2);*/
+
+	int hash = static_cast<int>(getHash(static_cast<unsigned int>(proxyId1), static_cast<unsigned int>(proxyId2)) & (m_overlappingPairArray.capacity()-1));
+
+	if (hash >= m_hashTable.size())
+	{
+		return NULL;
+	}
+
+	int index = m_hashTable[hash];
+	while (index != BT_NULL_PAIR && equalsPair(m_overlappingPairArray[index], proxyId1, proxyId2) == false)
+	{
+		index = m_next[index];
+	}
+
+	if (index == BT_NULL_PAIR)
+	{
+		return NULL;
+	}
+
+	btAssert(index < m_overlappingPairArray.size());
+
+	return &m_overlappingPairArray[index];
+}
+
+//#include <stdio.h>
+
+void	btHashedOverlappingPairCache::growTables()
+{
+
+	int newCapacity = m_overlappingPairArray.capacity();
+
+	if (m_hashTable.size() < newCapacity)
+	{
+		//grow hashtable and next table
+		int curHashtableSize = m_hashTable.size();
+
+		m_hashTable.resize(newCapacity);
+		m_next.resize(newCapacity);
+
+
+		int i;
+
+		for (i= 0; i < newCapacity; ++i)
+		{
+			m_hashTable[i] = BT_NULL_PAIR;
+		}
+		for (i = 0; i < newCapacity; ++i)
+		{
+			m_next[i] = BT_NULL_PAIR;
+		}
+
+		for(i=0;i<curHashtableSize;i++)
+		{
+	
+			const btBroadphasePair& pair = m_overlappingPairArray[i];
+			int proxyId1 = pair.m_pProxy0->getUid();
+			int proxyId2 = pair.m_pProxy1->getUid();
+			/*if (proxyId1 > proxyId2) 
+				btSwap(proxyId1, proxyId2);*/
+			int	hashValue = static_cast<int>(getHash(static_cast<unsigned int>(proxyId1),static_cast<unsigned int>(proxyId2)) & (m_overlappingPairArray.capacity()-1));	// New hash value with new mask
+			m_next[i] = m_hashTable[hashValue];
+			m_hashTable[hashValue] = i;
+		}
+
+
+	}
+}
+
+btBroadphasePair* btHashedOverlappingPairCache::internalAddPair(btBroadphaseProxy* proxy0, btBroadphaseProxy* proxy1)
+{
+	if(proxy0->m_uniqueId>proxy1->m_uniqueId) 
+		btSwap(proxy0,proxy1);
+	int proxyId1 = proxy0->getUid();
+	int proxyId2 = proxy1->getUid();
+
+	/*if (proxyId1 > proxyId2) 
+		btSwap(proxyId1, proxyId2);*/
+
+	int	hash = static_cast<int>(getHash(static_cast<unsigned int>(proxyId1),static_cast<unsigned int>(proxyId2)) & (m_overlappingPairArray.capacity()-1));	// New hash value with new mask
+
+
+	btBroadphasePair* pair = internalFindPair(proxy0, proxy1, hash);
+	if (pair != NULL)
+	{
+		return pair;
+	}
+	/*for(int i=0;i<m_overlappingPairArray.size();++i)
+		{
+		if(	(m_overlappingPairArray[i].m_pProxy0==proxy0)&&
+			(m_overlappingPairArray[i].m_pProxy1==proxy1))
+			{
+			printf("Adding duplicated %u<>%u\r\n",proxyId1,proxyId2);
+			internalFindPair(proxy0, proxy1, hash);
+			}
+		}*/
+	int count = m_overlappingPairArray.size();
+	int oldCapacity = m_overlappingPairArray.capacity();
+	void* mem = &m_overlappingPairArray.expandNonInitializing();
+
+	//this is where we add an actual pair, so also call the 'ghost'
+	if (m_ghostPairCallback)
+		m_ghostPairCallback->addOverlappingPair(proxy0,proxy1);
+
+	int newCapacity = m_overlappingPairArray.capacity();
+
+	if (oldCapacity < newCapacity)
+	{
+		growTables();
+		//hash with new capacity
+		hash = static_cast<int>(getHash(static_cast<unsigned int>(proxyId1),static_cast<unsigned int>(proxyId2)) & (m_overlappingPairArray.capacity()-1));
+	}
+	
+	pair = new (mem) btBroadphasePair(*proxy0,*proxy1);
+//	pair->m_pProxy0 = proxy0;
+//	pair->m_pProxy1 = proxy1;
+	pair->m_algorithm = 0;
+	pair->m_internalTmpValue = 0;
+	
+
+	m_next[count] = m_hashTable[hash];
+	m_hashTable[hash] = count;
+
+	return pair;
+}
+
+
+
+void* btHashedOverlappingPairCache::removeOverlappingPair(btBroadphaseProxy* proxy0, btBroadphaseProxy* proxy1,btDispatcher* dispatcher)
+{
+	gRemovePairs++;
+	if(proxy0->m_uniqueId>proxy1->m_uniqueId) 
+		btSwap(proxy0,proxy1);
+	int proxyId1 = proxy0->getUid();
+	int proxyId2 = proxy1->getUid();
+
+	/*if (proxyId1 > proxyId2) 
+		btSwap(proxyId1, proxyId2);*/
+
+	int	hash = static_cast<int>(getHash(static_cast<unsigned int>(proxyId1),static_cast<unsigned int>(proxyId2)) & (m_overlappingPairArray.capacity()-1));
+
+	btBroadphasePair* pair = internalFindPair(proxy0, proxy1, hash);
+	if (pair == NULL)
+	{
+		return 0;
+	}
+
+	cleanOverlappingPair(*pair,dispatcher);
+
+	void* userData = pair->m_internalInfo1;
+
+	btAssert(pair->m_pProxy0->getUid() == proxyId1);
+	btAssert(pair->m_pProxy1->getUid() == proxyId2);
+
+	int pairIndex = int(pair - &m_overlappingPairArray[0]);
+	btAssert(pairIndex < m_overlappingPairArray.size());
+
+	// Remove the pair from the hash table.
+	int index = m_hashTable[hash];
+	btAssert(index != BT_NULL_PAIR);
+
+	int previous = BT_NULL_PAIR;
+	while (index != pairIndex)
+	{
+		previous = index;
+		index = m_next[index];
+	}
+
+	if (previous != BT_NULL_PAIR)
+	{
+		btAssert(m_next[previous] == pairIndex);
+		m_next[previous] = m_next[pairIndex];
+	}
+	else
+	{
+		m_hashTable[hash] = m_next[pairIndex];
+	}
+
+	// We now move the last pair into spot of the
+	// pair being removed. We need to fix the hash
+	// table indices to support the move.
+
+	int lastPairIndex = m_overlappingPairArray.size() - 1;
+
+	if (m_ghostPairCallback)
+		m_ghostPairCallback->removeOverlappingPair(proxy0, proxy1,dispatcher);
+
+	// If the removed pair is the last pair, we are done.
+	if (lastPairIndex == pairIndex)
+	{
+		m_overlappingPairArray.pop_back();
+		return userData;
+	}
+
+	// Remove the last pair from the hash table.
+	const btBroadphasePair* last = &m_overlappingPairArray[lastPairIndex];
+		/* missing swap here too, Nat. */ 
+	int lastHash = static_cast<int>(getHash(static_cast<unsigned int>(last->m_pProxy0->getUid()), static_cast<unsigned int>(last->m_pProxy1->getUid())) & (m_overlappingPairArray.capacity()-1));
+
+	index = m_hashTable[lastHash];
+	btAssert(index != BT_NULL_PAIR);
+
+	previous = BT_NULL_PAIR;
+	while (index != lastPairIndex)
+	{
+		previous = index;
+		index = m_next[index];
+	}
+
+	if (previous != BT_NULL_PAIR)
+	{
+		btAssert(m_next[previous] == lastPairIndex);
+		m_next[previous] = m_next[lastPairIndex];
+	}
+	else
+	{
+		m_hashTable[lastHash] = m_next[lastPairIndex];
+	}
+
+	// Copy the last pair into the remove pair's spot.
+	m_overlappingPairArray[pairIndex] = m_overlappingPairArray[lastPairIndex];
+
+	// Insert the last pair into the hash table
+	m_next[pairIndex] = m_hashTable[lastHash];
+	m_hashTable[lastHash] = pairIndex;
+
+	m_overlappingPairArray.pop_back();
+
+	return userData;
+}
+//#include <stdio.h>
+
+void	btHashedOverlappingPairCache::processAllOverlappingPairs(btOverlapCallback* callback,btDispatcher* dispatcher)
+{
+
+	int i;
+
+//	printf("m_overlappingPairArray.size()=%d\n",m_overlappingPairArray.size());
+	for (i=0;i<m_overlappingPairArray.size();)
+	{
+	
+		btBroadphasePair* pair = &m_overlappingPairArray[i];
+		if (callback->processOverlap(*pair))
+		{
+			removeOverlappingPair(pair->m_pProxy0,pair->m_pProxy1,dispatcher);
+
+			gOverlappingPairs--;
+		} else
+		{
+			i++;
+		}
+	}
+}
+
+void	btHashedOverlappingPairCache::sortOverlappingPairs(btDispatcher* dispatcher)
+{
+	///need to keep hashmap in sync with pair address, so rebuild all
+	btBroadphasePairArray tmpPairs;
+	int i;
+	for (i=0;i<m_overlappingPairArray.size();i++)
+	{
+		tmpPairs.push_back(m_overlappingPairArray[i]);
+	}
+
+	for (i=0;i<tmpPairs.size();i++)
+	{
+		removeOverlappingPair(tmpPairs[i].m_pProxy0,tmpPairs[i].m_pProxy1,dispatcher);
+	}
+	
+	for (i = 0; i < m_next.size(); i++)
+	{
+		m_next[i] = BT_NULL_PAIR;
+	}
+
+	tmpPairs.quickSort(btBroadphasePairSortPredicate());
+
+	for (i=0;i<tmpPairs.size();i++)
+	{
+		addOverlappingPair(tmpPairs[i].m_pProxy0,tmpPairs[i].m_pProxy1);
+	}
+
+	
+}
+
+
+void*	btSortedOverlappingPairCache::removeOverlappingPair(btBroadphaseProxy* proxy0,btBroadphaseProxy* proxy1, btDispatcher* dispatcher )
+{
+	if (!hasDeferredRemoval())
+	{
+		btBroadphasePair findPair(*proxy0,*proxy1);
+
+		int findIndex = m_overlappingPairArray.findLinearSearch(findPair);
+		if (findIndex < m_overlappingPairArray.size())
+		{
+			gOverlappingPairs--;
+			btBroadphasePair& pair = m_overlappingPairArray[findIndex];
+			void* userData = pair.m_internalInfo1;
+			cleanOverlappingPair(pair,dispatcher);
+			if (m_ghostPairCallback)
+				m_ghostPairCallback->removeOverlappingPair(proxy0, proxy1,dispatcher);
+			
+			m_overlappingPairArray.swap(findIndex,m_overlappingPairArray.capacity()-1);
+			m_overlappingPairArray.pop_back();
+			return userData;
+		}
+	}
+
+	return 0;
+}
+
+
+
+
+
+
+
+
+btBroadphasePair*	btSortedOverlappingPairCache::addOverlappingPair(btBroadphaseProxy* proxy0,btBroadphaseProxy* proxy1)
+{
+	//don't add overlap with own
+	btAssert(proxy0 != proxy1);
+
+	if (!needsBroadphaseCollision(proxy0,proxy1))
+		return 0;
+	
+	void* mem = &m_overlappingPairArray.expandNonInitializing();
+	btBroadphasePair* pair = new (mem) btBroadphasePair(*proxy0,*proxy1);
+	
+	gOverlappingPairs++;
+	gAddedPairs++;
+	
+	if (m_ghostPairCallback)
+		m_ghostPairCallback->addOverlappingPair(proxy0, proxy1);
+	return pair;
+	
+}
+
+///this findPair becomes really slow. Either sort the list to speedup the query, or
+///use a different solution. It is mainly used for Removing overlapping pairs. Removal could be delayed.
+///we could keep a linked list in each proxy, and store pair in one of the proxies (with lowest memory address)
+///Also we can use a 2D bitmap, which can be useful for a future GPU implementation
+ btBroadphasePair*	btSortedOverlappingPairCache::findPair(btBroadphaseProxy* proxy0,btBroadphaseProxy* proxy1)
+{
+	if (!needsBroadphaseCollision(proxy0,proxy1))
+		return 0;
+
+	btBroadphasePair tmpPair(*proxy0,*proxy1);
+	int findIndex = m_overlappingPairArray.findLinearSearch(tmpPair);
+
+	if (findIndex < m_overlappingPairArray.size())
+	{
+		//btAssert(it != m_overlappingPairSet.end());
+		 btBroadphasePair* pair = &m_overlappingPairArray[findIndex];
+		return pair;
+	}
+	return 0;
+}
+
+
+
+
+
+
+
+
+
+
+//#include <stdio.h>
+
+void	btSortedOverlappingPairCache::processAllOverlappingPairs(btOverlapCallback* callback,btDispatcher* dispatcher)
+{
+
+	int i;
+
+	for (i=0;i<m_overlappingPairArray.size();)
+	{
+	
+		btBroadphasePair* pair = &m_overlappingPairArray[i];
+		if (callback->processOverlap(*pair))
+		{
+			cleanOverlappingPair(*pair,dispatcher);
+			pair->m_pProxy0 = 0;
+			pair->m_pProxy1 = 0;
+			m_overlappingPairArray.swap(i,m_overlappingPairArray.size()-1);
+			m_overlappingPairArray.pop_back();
+			gOverlappingPairs--;
+		} else
+		{
+			i++;
+		}
+	}
+}
+
+
+
+
+btSortedOverlappingPairCache::btSortedOverlappingPairCache():
+	m_blockedForChanges(false),
+	m_hasDeferredRemoval(true),
+	m_overlapFilterCallback(0),
+	m_ghostPairCallback(0)
+{
+	int initialAllocatedSize= 2;
+	m_overlappingPairArray.reserve(initialAllocatedSize);
+}
+
+btSortedOverlappingPairCache::~btSortedOverlappingPairCache()
+{
+}
+
+void	btSortedOverlappingPairCache::cleanOverlappingPair(btBroadphasePair& pair,btDispatcher* dispatcher)
+{
+	if (pair.m_algorithm)
+	{
+		{
+			pair.m_algorithm->~btCollisionAlgorithm();
+			dispatcher->freeCollisionAlgorithm(pair.m_algorithm);
+			pair.m_algorithm=0;
+			gRemovePairs--;
+		}
+	}
+}
+
+
+void	btSortedOverlappingPairCache::cleanProxyFromPairs(btBroadphaseProxy* proxy,btDispatcher* dispatcher)
+{
+
+	class	CleanPairCallback : public btOverlapCallback
+	{
+		btBroadphaseProxy* m_cleanProxy;
+		btOverlappingPairCache*	m_pairCache;
+		btDispatcher* m_dispatcher;
+
+	public:
+		CleanPairCallback(btBroadphaseProxy* cleanProxy,btOverlappingPairCache* pairCache,btDispatcher* dispatcher)
+			:m_cleanProxy(cleanProxy),
+			m_pairCache(pairCache),
+			m_dispatcher(dispatcher)
+		{
+		}
+		virtual	bool	processOverlap(btBroadphasePair& pair)
+		{
+			if ((pair.m_pProxy0 == m_cleanProxy) ||
+				(pair.m_pProxy1 == m_cleanProxy))
+			{
+				m_pairCache->cleanOverlappingPair(pair,m_dispatcher);
+			}
+			return false;
+		}
+		
+	};
+
+	CleanPairCallback cleanPairs(proxy,this,dispatcher);
+
+	processAllOverlappingPairs(&cleanPairs,dispatcher);
+
+}
+
+
+void	btSortedOverlappingPairCache::removeOverlappingPairsContainingProxy(btBroadphaseProxy* proxy,btDispatcher* dispatcher)
+{
+
+	class	RemovePairCallback : public btOverlapCallback
+	{
+		btBroadphaseProxy* m_obsoleteProxy;
+
+	public:
+		RemovePairCallback(btBroadphaseProxy* obsoleteProxy)
+			:m_obsoleteProxy(obsoleteProxy)
+		{
+		}
+		virtual	bool	processOverlap(btBroadphasePair& pair)
+		{
+			return ((pair.m_pProxy0 == m_obsoleteProxy) ||
+				(pair.m_pProxy1 == m_obsoleteProxy));
+		}
+		
+	};
+
+	RemovePairCallback removeCallback(proxy);
+
+	processAllOverlappingPairs(&removeCallback,dispatcher);
+}
+
+void	btSortedOverlappingPairCache::sortOverlappingPairs(btDispatcher* dispatcher)
+{
+	//should already be sorted
+}
+

libs/bullet/BulletCollision/BroadphaseCollision/btOverlappingPairCache.h

@@ -0,0 +1,469 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+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 OVERLAPPING_PAIR_CACHE_H
+#define OVERLAPPING_PAIR_CACHE_H
+
+
+#include "btBroadphaseInterface.h"
+#include "btBroadphaseProxy.h"
+#include "btOverlappingPairCallback.h"
+
+#include "LinearMath/btAlignedObjectArray.h"
+class btDispatcher;
+
+typedef btAlignedObjectArray<btBroadphasePair>	btBroadphasePairArray;
+
+struct	btOverlapCallback
+{
+	virtual ~btOverlapCallback()
+	{}
+	//return true for deletion of the pair
+	virtual bool	processOverlap(btBroadphasePair& pair) = 0;
+
+};
+
+struct btOverlapFilterCallback
+{
+	virtual ~btOverlapFilterCallback()
+	{}
+	// return true when pairs need collision
+	virtual bool	needBroadphaseCollision(btBroadphaseProxy* proxy0,btBroadphaseProxy* proxy1) const = 0;
+};
+
+
+
+
+
+
+
+extern int gRemovePairs;
+extern int gAddedPairs;
+extern int gFindPairs;
+
+const int BT_NULL_PAIR=0xffffffff;
+
+///The btOverlappingPairCache provides an interface for overlapping pair management (add, remove, storage), used by the btBroadphaseInterface broadphases.
+///The btHashedOverlappingPairCache and btSortedOverlappingPairCache classes are two implementations.
+class btOverlappingPairCache : public btOverlappingPairCallback
+{
+public:
+	virtual ~btOverlappingPairCache() {} // this is needed so we can get to the derived class destructor
+
+	virtual btBroadphasePair*	getOverlappingPairArrayPtr() = 0;
+	
+	virtual const btBroadphasePair*	getOverlappingPairArrayPtr() const = 0;
+
+	virtual btBroadphasePairArray&	getOverlappingPairArray() = 0;
+
+	virtual	void	cleanOverlappingPair(btBroadphasePair& pair,btDispatcher* dispatcher) = 0;
+
+	virtual int getNumOverlappingPairs() const = 0;
+
+	virtual void	cleanProxyFromPairs(btBroadphaseProxy* proxy,btDispatcher* dispatcher) = 0;
+
+	virtual	void setOverlapFilterCallback(btOverlapFilterCallback* callback) = 0;
+
+	virtual void	processAllOverlappingPairs(btOverlapCallback*,btDispatcher* dispatcher) = 0;
+
+	virtual btBroadphasePair* findPair(btBroadphaseProxy* proxy0, btBroadphaseProxy* proxy1) = 0;
+
+	virtual bool	hasDeferredRemoval() = 0;
+
+	virtual	void	setInternalGhostPairCallback(btOverlappingPairCallback* ghostPairCallback)=0;
+
+	virtual void	sortOverlappingPairs(btDispatcher* dispatcher) = 0;
+
+
+};
+
+/// Hash-space based Pair Cache, thanks to Erin Catto, Box2D, http://www.box2d.org, and Pierre Terdiman, Codercorner, http://codercorner.com
+class btHashedOverlappingPairCache : public btOverlappingPairCache
+{
+	btBroadphasePairArray	m_overlappingPairArray;
+	btOverlapFilterCallback* m_overlapFilterCallback;
+	bool		m_blockedForChanges;
+
+
+public:
+	btHashedOverlappingPairCache();
+	virtual ~btHashedOverlappingPairCache();
+
+	
+	void	removeOverlappingPairsContainingProxy(btBroadphaseProxy* proxy,btDispatcher* dispatcher);
+
+	virtual void*	removeOverlappingPair(btBroadphaseProxy* proxy0,btBroadphaseProxy* proxy1,btDispatcher* dispatcher);
+	
+	SIMD_FORCE_INLINE bool needsBroadphaseCollision(btBroadphaseProxy* proxy0,btBroadphaseProxy* proxy1) const
+	{
+		if (m_overlapFilterCallback)
+			return m_overlapFilterCallback->needBroadphaseCollision(proxy0,proxy1);
+
+		bool collides = (proxy0->m_collisionFilterGroup & proxy1->m_collisionFilterMask) != 0;
+		collides = collides && (proxy1->m_collisionFilterGroup & proxy0->m_collisionFilterMask);
+		
+		return collides;
+	}
+
+	// Add a pair and return the new pair. If the pair already exists,
+	// no new pair is created and the old one is returned.
+	virtual btBroadphasePair* 	addOverlappingPair(btBroadphaseProxy* proxy0,btBroadphaseProxy* proxy1)
+	{
+		gAddedPairs++;
+
+		if (!needsBroadphaseCollision(proxy0,proxy1))
+			return 0;
+
+		return internalAddPair(proxy0,proxy1);
+	}
+
+	
+
+	void	cleanProxyFromPairs(btBroadphaseProxy* proxy,btDispatcher* dispatcher);
+
+	
+	virtual void	processAllOverlappingPairs(btOverlapCallback*,btDispatcher* dispatcher);
+
+	virtual btBroadphasePair*	getOverlappingPairArrayPtr()
+	{
+		return &m_overlappingPairArray[0];
+	}
+
+	const btBroadphasePair*	getOverlappingPairArrayPtr() const
+	{
+		return &m_overlappingPairArray[0];
+	}
+
+	btBroadphasePairArray&	getOverlappingPairArray()
+	{
+		return m_overlappingPairArray;
+	}
+
+	const btBroadphasePairArray&	getOverlappingPairArray() const
+	{
+		return m_overlappingPairArray;
+	}
+
+	void	cleanOverlappingPair(btBroadphasePair& pair,btDispatcher* dispatcher);
+
+
+
+	btBroadphasePair* findPair(btBroadphaseProxy* proxy0, btBroadphaseProxy* proxy1);
+
+	int GetCount() const { return m_overlappingPairArray.size(); }
+//	btBroadphasePair* GetPairs() { return m_pairs; }
+
+	btOverlapFilterCallback* getOverlapFilterCallback()
+	{
+		return m_overlapFilterCallback;
+	}
+
+	void setOverlapFilterCallback(btOverlapFilterCallback* callback)
+	{
+		m_overlapFilterCallback = callback;
+	}
+
+	int	getNumOverlappingPairs() const
+	{
+		return m_overlappingPairArray.size();
+	}
+private:
+	
+	btBroadphasePair* 	internalAddPair(btBroadphaseProxy* proxy0,btBroadphaseProxy* proxy1);
+
+	void	growTables();
+
+	SIMD_FORCE_INLINE bool equalsPair(const btBroadphasePair& pair, int proxyId1, int proxyId2)
+	{	
+		return pair.m_pProxy0->getUid() == proxyId1 && pair.m_pProxy1->getUid() == proxyId2;
+	}
+
+	/*
+	// Thomas Wang's hash, see: http://www.concentric.net/~Ttwang/tech/inthash.htm
+	// This assumes proxyId1 and proxyId2 are 16-bit.
+	SIMD_FORCE_INLINE int getHash(int proxyId1, int proxyId2)
+	{
+		int key = (proxyId2 << 16) | proxyId1;
+		key = ~key + (key << 15);
+		key = key ^ (key >> 12);
+		key = key + (key << 2);
+		key = key ^ (key >> 4);
+		key = key * 2057;
+		key = key ^ (key >> 16);
+		return key;
+	}
+	*/
+
+
+	
+	SIMD_FORCE_INLINE	unsigned int getHash(unsigned int proxyId1, unsigned int proxyId2)
+	{
+		int key = static_cast<int>(((unsigned int)proxyId1) | (((unsigned int)proxyId2) <<16));
+		// Thomas Wang's hash
+
+		key += ~(key << 15);
+		key ^=  (key >> 10);
+		key +=  (key << 3);
+		key ^=  (key >> 6);
+		key += ~(key << 11);
+		key ^=  (key >> 16);
+		return static_cast<unsigned int>(key);
+	}
+	
+
+
+
+
+	SIMD_FORCE_INLINE btBroadphasePair* internalFindPair(btBroadphaseProxy* proxy0, btBroadphaseProxy* proxy1, int hash)
+	{
+		int proxyId1 = proxy0->getUid();
+		int proxyId2 = proxy1->getUid();
+		#if 0 // wrong, 'equalsPair' use unsorted uids, copy-past devil striked again. Nat.
+		if (proxyId1 > proxyId2) 
+			btSwap(proxyId1, proxyId2);
+		#endif
+
+		int index = m_hashTable[hash];
+		
+		while( index != BT_NULL_PAIR && equalsPair(m_overlappingPairArray[index], proxyId1, proxyId2) == false)
+		{
+			index = m_next[index];
+		}
+
+		if ( index == BT_NULL_PAIR )
+		{
+			return NULL;
+		}
+
+		btAssert(index < m_overlappingPairArray.size());
+
+		return &m_overlappingPairArray[index];
+	}
+
+	virtual bool	hasDeferredRemoval()
+	{
+		return false;
+	}
+
+	virtual	void	setInternalGhostPairCallback(btOverlappingPairCallback* ghostPairCallback)
+	{
+		m_ghostPairCallback = ghostPairCallback;
+	}
+
+	virtual void	sortOverlappingPairs(btDispatcher* dispatcher);
+	
+
+protected:
+	
+	btAlignedObjectArray<int>	m_hashTable;
+	btAlignedObjectArray<int>	m_next;
+	btOverlappingPairCallback*	m_ghostPairCallback;
+	
+};
+
+
+
+
+///btSortedOverlappingPairCache maintains the objects with overlapping AABB
+///Typically managed by the Broadphase, Axis3Sweep or btSimpleBroadphase
+class	btSortedOverlappingPairCache : public btOverlappingPairCache
+{
+	protected:
+		//avoid brute-force finding all the time
+		btBroadphasePairArray	m_overlappingPairArray;
+
+		//during the dispatch, check that user doesn't destroy/create proxy
+		bool		m_blockedForChanges;
+
+		///by default, do the removal during the pair traversal
+		bool		m_hasDeferredRemoval;
+		
+		//if set, use the callback instead of the built in filter in needBroadphaseCollision
+		btOverlapFilterCallback* m_overlapFilterCallback;
+
+		btOverlappingPairCallback*	m_ghostPairCallback;
+
+	public:
+			
+		btSortedOverlappingPairCache();	
+		virtual ~btSortedOverlappingPairCache();
+
+		virtual void	processAllOverlappingPairs(btOverlapCallback*,btDispatcher* dispatcher);
+
+		void*	removeOverlappingPair(btBroadphaseProxy* proxy0,btBroadphaseProxy* proxy1,btDispatcher* dispatcher);
+
+		void	cleanOverlappingPair(btBroadphasePair& pair,btDispatcher* dispatcher);
+		
+		btBroadphasePair*	addOverlappingPair(btBroadphaseProxy* proxy0,btBroadphaseProxy* proxy1);
+
+		btBroadphasePair*	findPair(btBroadphaseProxy* proxy0,btBroadphaseProxy* proxy1);
+			
+		
+		void	cleanProxyFromPairs(btBroadphaseProxy* proxy,btDispatcher* dispatcher);
+
+		void	removeOverlappingPairsContainingProxy(btBroadphaseProxy* proxy,btDispatcher* dispatcher);
+
+
+		inline bool needsBroadphaseCollision(btBroadphaseProxy* proxy0,btBroadphaseProxy* proxy1) const
+		{
+			if (m_overlapFilterCallback)
+				return m_overlapFilterCallback->needBroadphaseCollision(proxy0,proxy1);
+
+			bool collides = (proxy0->m_collisionFilterGroup & proxy1->m_collisionFilterMask) != 0;
+			collides = collides && (proxy1->m_collisionFilterGroup & proxy0->m_collisionFilterMask);
+			
+			return collides;
+		}
+		
+		btBroadphasePairArray&	getOverlappingPairArray()
+		{
+			return m_overlappingPairArray;
+		}
+
+		const btBroadphasePairArray&	getOverlappingPairArray() const
+		{
+			return m_overlappingPairArray;
+		}
+
+		
+
+
+		btBroadphasePair*	getOverlappingPairArrayPtr()
+		{
+			return &m_overlappingPairArray[0];
+		}
+
+		const btBroadphasePair*	getOverlappingPairArrayPtr() const
+		{
+			return &m_overlappingPairArray[0];
+		}
+
+		int	getNumOverlappingPairs() const
+		{
+			return m_overlappingPairArray.size();
+		}
+		
+		btOverlapFilterCallback* getOverlapFilterCallback()
+		{
+			return m_overlapFilterCallback;
+		}
+
+		void setOverlapFilterCallback(btOverlapFilterCallback* callback)
+		{
+			m_overlapFilterCallback = callback;
+		}
+
+		virtual bool	hasDeferredRemoval()
+		{
+			return m_hasDeferredRemoval;
+		}
+
+		virtual	void	setInternalGhostPairCallback(btOverlappingPairCallback* ghostPairCallback)
+		{
+			m_ghostPairCallback = ghostPairCallback;
+		}
+
+		virtual void	sortOverlappingPairs(btDispatcher* dispatcher);
+		
+
+};
+
+
+
+///btNullPairCache skips add/removal of overlapping pairs. Userful for benchmarking and unit testing.
+class btNullPairCache : public btOverlappingPairCache
+{
+
+	btBroadphasePairArray	m_overlappingPairArray;
+
+public:
+
+	virtual btBroadphasePair*	getOverlappingPairArrayPtr()
+	{
+		return &m_overlappingPairArray[0];
+	}
+	const btBroadphasePair*	getOverlappingPairArrayPtr() const
+	{
+		return &m_overlappingPairArray[0];
+	}
+	btBroadphasePairArray&	getOverlappingPairArray()
+	{
+		return m_overlappingPairArray;
+	}
+	
+	virtual	void	cleanOverlappingPair(btBroadphasePair& /*pair*/,btDispatcher* /*dispatcher*/)
+	{
+
+	}
+
+	virtual int getNumOverlappingPairs() const
+	{
+		return 0;
+	}
+
+	virtual void	cleanProxyFromPairs(btBroadphaseProxy* /*proxy*/,btDispatcher* /*dispatcher*/)
+	{
+
+	}
+
+	virtual	void setOverlapFilterCallback(btOverlapFilterCallback* /*callback*/)
+	{
+	}
+
+	virtual void	processAllOverlappingPairs(btOverlapCallback*,btDispatcher* /*dispatcher*/)
+	{
+	}
+
+	virtual btBroadphasePair* findPair(btBroadphaseProxy* /*proxy0*/, btBroadphaseProxy* /*proxy1*/)
+	{
+		return 0;
+	}
+
+	virtual bool	hasDeferredRemoval()
+	{
+		return true;
+	}
+
+	virtual	void	setInternalGhostPairCallback(btOverlappingPairCallback* /* ghostPairCallback */)
+	{
+
+	}
+
+	virtual btBroadphasePair*	addOverlappingPair(btBroadphaseProxy* /*proxy0*/,btBroadphaseProxy* /*proxy1*/)
+	{
+		return 0;
+	}
+
+	virtual void*	removeOverlappingPair(btBroadphaseProxy* /*proxy0*/,btBroadphaseProxy* /*proxy1*/,btDispatcher* /*dispatcher*/)
+	{
+		return 0;
+	}
+
+	virtual void	removeOverlappingPairsContainingProxy(btBroadphaseProxy* /*proxy0*/,btDispatcher* /*dispatcher*/)
+	{
+	}
+	
+	virtual void	sortOverlappingPairs(btDispatcher* dispatcher)
+	{
+        (void) dispatcher;
+	}
+
+
+};
+
+
+#endif //OVERLAPPING_PAIR_CACHE_H
+
+

libs/bullet/BulletCollision/BroadphaseCollision/btOverlappingPairCallback.h

@@ -0,0 +1,40 @@
+
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+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 OVERLAPPING_PAIR_CALLBACK_H
+#define OVERLAPPING_PAIR_CALLBACK_H
+
+class btDispatcher;
+struct  btBroadphasePair;
+
+///The btOverlappingPairCallback class is an additional optional broadphase user callback for adding/removing overlapping pairs, similar interface to btOverlappingPairCache.
+class btOverlappingPairCallback
+{
+public:
+	virtual ~btOverlappingPairCallback()
+	{
+
+	}
+	
+	virtual btBroadphasePair*	addOverlappingPair(btBroadphaseProxy* proxy0,btBroadphaseProxy* proxy1) = 0;
+
+	virtual void*	removeOverlappingPair(btBroadphaseProxy* proxy0,btBroadphaseProxy* proxy1,btDispatcher* dispatcher) = 0;
+
+	virtual void	removeOverlappingPairsContainingProxy(btBroadphaseProxy* proxy0,btDispatcher* dispatcher) = 0;
+
+};
+
+#endif //OVERLAPPING_PAIR_CALLBACK_H

libs/bullet/BulletCollision/BroadphaseCollision/btQuantizedBvh.h

@@ -0,0 +1,579 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+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 QUANTIZED_BVH_H
+#define QUANTIZED_BVH_H
+
+class btSerializer;
+
+//#define DEBUG_CHECK_DEQUANTIZATION 1
+#ifdef DEBUG_CHECK_DEQUANTIZATION
+#ifdef __SPU__
+#define printf spu_printf
+#endif //__SPU__
+
+#include <stdio.h>
+#include <stdlib.h>
+#endif //DEBUG_CHECK_DEQUANTIZATION
+
+#include "LinearMath/btVector3.h"
+#include "LinearMath/btAlignedAllocator.h"
+
+#ifdef BT_USE_DOUBLE_PRECISION
+#define btQuantizedBvhData btQuantizedBvhDoubleData
+#define btOptimizedBvhNodeData btOptimizedBvhNodeDoubleData
+#define btQuantizedBvhDataName "btQuantizedBvhDoubleData"
+#else
+#define btQuantizedBvhData btQuantizedBvhFloatData
+#define btOptimizedBvhNodeData btOptimizedBvhNodeFloatData
+#define btQuantizedBvhDataName "btQuantizedBvhFloatData"
+#endif
+
+
+
+//http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vclang/html/vclrf__m128.asp
+
+
+//Note: currently we have 16 bytes per quantized node
+#define MAX_SUBTREE_SIZE_IN_BYTES  2048
+
+// 10 gives the potential for 1024 parts, with at most 2^21 (2097152) (minus one
+// actually) triangles each (since the sign bit is reserved
+#define MAX_NUM_PARTS_IN_BITS 10
+
+///btQuantizedBvhNode is a compressed aabb node, 16 bytes.
+///Node can be used for leafnode or internal node. Leafnodes can point to 32-bit triangle index (non-negative range).
+ATTRIBUTE_ALIGNED16	(struct) btQuantizedBvhNode
+{
+	BT_DECLARE_ALIGNED_ALLOCATOR();
+
+	//12 bytes
+	unsigned short int	m_quantizedAabbMin[3];
+	unsigned short int	m_quantizedAabbMax[3];
+	//4 bytes
+	int	m_escapeIndexOrTriangleIndex;
+
+	bool isLeafNode() const
+	{
+		//skipindex is negative (internal node), triangleindex >=0 (leafnode)
+		return (m_escapeIndexOrTriangleIndex >= 0);
+	}
+	int getEscapeIndex() const
+	{
+		btAssert(!isLeafNode());
+		return -m_escapeIndexOrTriangleIndex;
+	}
+	int	getTriangleIndex() const
+	{
+		btAssert(isLeafNode());
+		// Get only the lower bits where the triangle index is stored
+		return (m_escapeIndexOrTriangleIndex&~((~0)<<(31-MAX_NUM_PARTS_IN_BITS)));
+	}
+	int	getPartId() const
+	{
+		btAssert(isLeafNode());
+		// Get only the highest bits where the part index is stored
+		return (m_escapeIndexOrTriangleIndex>>(31-MAX_NUM_PARTS_IN_BITS));
+	}
+}
+;
+
+/// btOptimizedBvhNode contains both internal and leaf node information.
+/// Total node size is 44 bytes / node. You can use the compressed version of 16 bytes.
+ATTRIBUTE_ALIGNED16 (struct) btOptimizedBvhNode
+{
+	BT_DECLARE_ALIGNED_ALLOCATOR();
+
+	//32 bytes
+	btVector3	m_aabbMinOrg;
+	btVector3	m_aabbMaxOrg;
+
+	//4
+	int	m_escapeIndex;
+
+	//8
+	//for child nodes
+	int	m_subPart;
+	int	m_triangleIndex;
+	int	m_padding[5];//bad, due to alignment
+
+
+};
+
+
+///btBvhSubtreeInfo provides info to gather a subtree of limited size
+ATTRIBUTE_ALIGNED16(class) btBvhSubtreeInfo
+{
+public:
+	BT_DECLARE_ALIGNED_ALLOCATOR();
+
+	//12 bytes
+	unsigned short int	m_quantizedAabbMin[3];
+	unsigned short int	m_quantizedAabbMax[3];
+	//4 bytes, points to the root of the subtree
+	int			m_rootNodeIndex;
+	//4 bytes
+	int			m_subtreeSize;
+	int			m_padding[3];
+
+	btBvhSubtreeInfo()
+	{
+		//memset(&m_padding[0], 0, sizeof(m_padding));
+	}
+
+
+	void	setAabbFromQuantizeNode(const btQuantizedBvhNode& quantizedNode)
+	{
+		m_quantizedAabbMin[0] = quantizedNode.m_quantizedAabbMin[0];
+		m_quantizedAabbMin[1] = quantizedNode.m_quantizedAabbMin[1];
+		m_quantizedAabbMin[2] = quantizedNode.m_quantizedAabbMin[2];
+		m_quantizedAabbMax[0] = quantizedNode.m_quantizedAabbMax[0];
+		m_quantizedAabbMax[1] = quantizedNode.m_quantizedAabbMax[1];
+		m_quantizedAabbMax[2] = quantizedNode.m_quantizedAabbMax[2];
+	}
+}
+;
+
+
+class btNodeOverlapCallback
+{
+public:
+	virtual ~btNodeOverlapCallback() {};
+
+	virtual void processNode(int subPart, int triangleIndex) = 0;
+};
+
+#include "LinearMath/btAlignedAllocator.h"
+#include "LinearMath/btAlignedObjectArray.h"
+
+
+
+///for code readability:
+typedef btAlignedObjectArray<btOptimizedBvhNode>	NodeArray;
+typedef btAlignedObjectArray<btQuantizedBvhNode>	QuantizedNodeArray;
+typedef btAlignedObjectArray<btBvhSubtreeInfo>		BvhSubtreeInfoArray;
+
+
+///The btQuantizedBvh class stores an AABB tree that can be quickly traversed on CPU and Cell SPU.
+///It is used by the btBvhTriangleMeshShape as midphase, and by the btMultiSapBroadphase.
+///It is recommended to use quantization for better performance and lower memory requirements.
+ATTRIBUTE_ALIGNED16(class) btQuantizedBvh
+{
+public:
+	enum btTraversalMode
+	{
+		TRAVERSAL_STACKLESS = 0,
+		TRAVERSAL_STACKLESS_CACHE_FRIENDLY,
+		TRAVERSAL_RECURSIVE
+	};
+
+protected:
+
+
+	btVector3			m_bvhAabbMin;
+	btVector3			m_bvhAabbMax;
+	btVector3			m_bvhQuantization;
+
+	int					m_bulletVersion;	//for serialization versioning. It could also be used to detect endianess.
+
+	int					m_curNodeIndex;
+	//quantization data
+	bool				m_useQuantization;
+
+
+
+	NodeArray			m_leafNodes;
+	NodeArray			m_contiguousNodes;
+	QuantizedNodeArray	m_quantizedLeafNodes;
+	QuantizedNodeArray	m_quantizedContiguousNodes;
+	
+	btTraversalMode	m_traversalMode;
+	BvhSubtreeInfoArray		m_SubtreeHeaders;
+
+	//This is only used for serialization so we don't have to add serialization directly to btAlignedObjectArray
+	mutable int m_subtreeHeaderCount;
+
+	
+
+
+
+	///two versions, one for quantized and normal nodes. This allows code-reuse while maintaining readability (no template/macro!)
+	///this might be refactored into a virtual, it is usually not calculated at run-time
+	void	setInternalNodeAabbMin(int nodeIndex, const btVector3& aabbMin)
+	{
+		if (m_useQuantization)
+		{
+			quantize(&m_quantizedContiguousNodes[nodeIndex].m_quantizedAabbMin[0] ,aabbMin,0);
+		} else
+		{
+			m_contiguousNodes[nodeIndex].m_aabbMinOrg = aabbMin;
+
+		}
+	}
+	void	setInternalNodeAabbMax(int nodeIndex,const btVector3& aabbMax)
+	{
+		if (m_useQuantization)
+		{
+			quantize(&m_quantizedContiguousNodes[nodeIndex].m_quantizedAabbMax[0],aabbMax,1);
+		} else
+		{
+			m_contiguousNodes[nodeIndex].m_aabbMaxOrg = aabbMax;
+		}
+	}
+
+	btVector3 getAabbMin(int nodeIndex) const
+	{
+		if (m_useQuantization)
+		{
+			return unQuantize(&m_quantizedLeafNodes[nodeIndex].m_quantizedAabbMin[0]);
+		}
+		//non-quantized
+		return m_leafNodes[nodeIndex].m_aabbMinOrg;
+
+	}
+	btVector3 getAabbMax(int nodeIndex) const
+	{
+		if (m_useQuantization)
+		{
+			return unQuantize(&m_quantizedLeafNodes[nodeIndex].m_quantizedAabbMax[0]);
+		} 
+		//non-quantized
+		return m_leafNodes[nodeIndex].m_aabbMaxOrg;
+		
+	}
+
+	
+	void	setInternalNodeEscapeIndex(int nodeIndex, int escapeIndex)
+	{
+		if (m_useQuantization)
+		{
+			m_quantizedContiguousNodes[nodeIndex].m_escapeIndexOrTriangleIndex = -escapeIndex;
+		} 
+		else
+		{
+			m_contiguousNodes[nodeIndex].m_escapeIndex = escapeIndex;
+		}
+
+	}
+
+	void mergeInternalNodeAabb(int nodeIndex,const btVector3& newAabbMin,const btVector3& newAabbMax) 
+	{
+		if (m_useQuantization)
+		{
+			unsigned short int quantizedAabbMin[3];
+			unsigned short int quantizedAabbMax[3];
+			quantize(quantizedAabbMin,newAabbMin,0);
+			quantize(quantizedAabbMax,newAabbMax,1);
+			for (int i=0;i<3;i++)
+			{
+				if (m_quantizedContiguousNodes[nodeIndex].m_quantizedAabbMin[i] > quantizedAabbMin[i])
+					m_quantizedContiguousNodes[nodeIndex].m_quantizedAabbMin[i] = quantizedAabbMin[i];
+
+				if (m_quantizedContiguousNodes[nodeIndex].m_quantizedAabbMax[i] < quantizedAabbMax[i])
+					m_quantizedContiguousNodes[nodeIndex].m_quantizedAabbMax[i] = quantizedAabbMax[i];
+
+			}
+		} else
+		{
+			//non-quantized
+			m_contiguousNodes[nodeIndex].m_aabbMinOrg.setMin(newAabbMin);
+			m_contiguousNodes[nodeIndex].m_aabbMaxOrg.setMax(newAabbMax);		
+		}
+	}
+
+	void	swapLeafNodes(int firstIndex,int secondIndex);
+
+	void	assignInternalNodeFromLeafNode(int internalNode,int leafNodeIndex);
+
+protected:
+
+	
+
+	void	buildTree	(int startIndex,int endIndex);
+
+	int	calcSplittingAxis(int startIndex,int endIndex);
+
+	int	sortAndCalcSplittingIndex(int startIndex,int endIndex,int splitAxis);
+	
+	void	walkStacklessTree(btNodeOverlapCallback* nodeCallback,const btVector3& aabbMin,const btVector3& aabbMax) const;
+
+	void	walkStacklessQuantizedTreeAgainstRay(btNodeOverlapCallback* nodeCallback, const btVector3& raySource, const btVector3& rayTarget, const btVector3& aabbMin, const btVector3& aabbMax, int startNodeIndex,int endNodeIndex) const;
+	void	walkStacklessQuantizedTree(btNodeOverlapCallback* nodeCallback,unsigned short int* quantizedQueryAabbMin,unsigned short int* quantizedQueryAabbMax,int startNodeIndex,int endNodeIndex) const;
+	void	walkStacklessTreeAgainstRay(btNodeOverlapCallback* nodeCallback, const btVector3& raySource, const btVector3& rayTarget, const btVector3& aabbMin, const btVector3& aabbMax, int startNodeIndex,int endNodeIndex) const;
+
+	///tree traversal designed for small-memory processors like PS3 SPU
+	void	walkStacklessQuantizedTreeCacheFriendly(btNodeOverlapCallback* nodeCallback,unsigned short int* quantizedQueryAabbMin,unsigned short int* quantizedQueryAabbMax) const;
+
+	///use the 16-byte stackless 'skipindex' node tree to do a recursive traversal
+	void	walkRecursiveQuantizedTreeAgainstQueryAabb(const btQuantizedBvhNode* currentNode,btNodeOverlapCallback* nodeCallback,unsigned short int* quantizedQueryAabbMin,unsigned short int* quantizedQueryAabbMax) const;
+
+	///use the 16-byte stackless 'skipindex' node tree to do a recursive traversal
+	void	walkRecursiveQuantizedTreeAgainstQuantizedTree(const btQuantizedBvhNode* treeNodeA,const btQuantizedBvhNode* treeNodeB,btNodeOverlapCallback* nodeCallback) const;
+	
+
+
+
+	void	updateSubtreeHeaders(int leftChildNodexIndex,int rightChildNodexIndex);
+
+public:
+	
+	BT_DECLARE_ALIGNED_ALLOCATOR();
+
+	btQuantizedBvh();
+
+	virtual ~btQuantizedBvh();
+
+	
+	///***************************************** expert/internal use only *************************
+	void	setQuantizationValues(const btVector3& bvhAabbMin,const btVector3& bvhAabbMax,btScalar quantizationMargin=btScalar(1.0));
+	QuantizedNodeArray&	getLeafNodeArray() {			return	m_quantizedLeafNodes;	}
+	///buildInternal is expert use only: assumes that setQuantizationValues and LeafNodeArray are initialized
+	void	buildInternal();
+	///***************************************** expert/internal use only *************************
+
+	void	reportAabbOverlappingNodex(btNodeOverlapCallback* nodeCallback,const btVector3& aabbMin,const btVector3& aabbMax) const;
+	void	reportRayOverlappingNodex (btNodeOverlapCallback* nodeCallback, const btVector3& raySource, const btVector3& rayTarget) const;
+	void	reportBoxCastOverlappingNodex(btNodeOverlapCallback* nodeCallback, const btVector3& raySource, const btVector3& rayTarget, const btVector3& aabbMin,const btVector3& aabbMax) const;
+
+		SIMD_FORCE_INLINE void quantize(unsigned short* out, const btVector3& point,int isMax) const
+	{
+
+		btAssert(m_useQuantization);
+
+		btAssert(point.getX() <= m_bvhAabbMax.getX());
+		btAssert(point.getY() <= m_bvhAabbMax.getY());
+		btAssert(point.getZ() <= m_bvhAabbMax.getZ());
+
+		btAssert(point.getX() >= m_bvhAabbMin.getX());
+		btAssert(point.getY() >= m_bvhAabbMin.getY());
+		btAssert(point.getZ() >= m_bvhAabbMin.getZ());
+
+		btVector3 v = (point - m_bvhAabbMin) * m_bvhQuantization;
+		///Make sure rounding is done in a way that unQuantize(quantizeWithClamp(...)) is conservative
+		///end-points always set the first bit, so that they are sorted properly (so that neighbouring AABBs overlap properly)
+		///@todo: double-check this
+		if (isMax)
+		{
+			out[0] = (unsigned short) (((unsigned short)(v.getX()+btScalar(1.)) | 1));
+			out[1] = (unsigned short) (((unsigned short)(v.getY()+btScalar(1.)) | 1));
+			out[2] = (unsigned short) (((unsigned short)(v.getZ()+btScalar(1.)) | 1));
+		} else
+		{
+			out[0] = (unsigned short) (((unsigned short)(v.getX()) & 0xfffe));
+			out[1] = (unsigned short) (((unsigned short)(v.getY()) & 0xfffe));
+			out[2] = (unsigned short) (((unsigned short)(v.getZ()) & 0xfffe));
+		}
+
+
+#ifdef DEBUG_CHECK_DEQUANTIZATION
+		btVector3 newPoint = unQuantize(out);
+		if (isMax)
+		{
+			if (newPoint.getX() < point.getX())
+			{
+				printf("unconservative X, diffX = %f, oldX=%f,newX=%f\n",newPoint.getX()-point.getX(), newPoint.getX(),point.getX());
+			}
+			if (newPoint.getY() < point.getY())
+			{
+				printf("unconservative Y, diffY = %f, oldY=%f,newY=%f\n",newPoint.getY()-point.getY(), newPoint.getY(),point.getY());
+			}
+			if (newPoint.getZ() < point.getZ())
+			{
+
+				printf("unconservative Z, diffZ = %f, oldZ=%f,newZ=%f\n",newPoint.getZ()-point.getZ(), newPoint.getZ(),point.getZ());
+			}
+		} else
+		{
+			if (newPoint.getX() > point.getX())
+			{
+				printf("unconservative X, diffX = %f, oldX=%f,newX=%f\n",newPoint.getX()-point.getX(), newPoint.getX(),point.getX());
+			}
+			if (newPoint.getY() > point.getY())
+			{
+				printf("unconservative Y, diffY = %f, oldY=%f,newY=%f\n",newPoint.getY()-point.getY(), newPoint.getY(),point.getY());
+			}
+			if (newPoint.getZ() > point.getZ())
+			{
+				printf("unconservative Z, diffZ = %f, oldZ=%f,newZ=%f\n",newPoint.getZ()-point.getZ(), newPoint.getZ(),point.getZ());
+			}
+		}
+#endif //DEBUG_CHECK_DEQUANTIZATION
+
+	}
+
+
+	SIMD_FORCE_INLINE void quantizeWithClamp(unsigned short* out, const btVector3& point2,int isMax) const
+	{
+
+		btAssert(m_useQuantization);
+
+		btVector3 clampedPoint(point2);
+		clampedPoint.setMax(m_bvhAabbMin);
+		clampedPoint.setMin(m_bvhAabbMax);
+
+		quantize(out,clampedPoint,isMax);
+
+	}
+	
+	SIMD_FORCE_INLINE btVector3	unQuantize(const unsigned short* vecIn) const
+	{
+			btVector3	vecOut;
+			vecOut.setValue(
+			(btScalar)(vecIn[0]) / (m_bvhQuantization.getX()),
+			(btScalar)(vecIn[1]) / (m_bvhQuantization.getY()),
+			(btScalar)(vecIn[2]) / (m_bvhQuantization.getZ()));
+			vecOut += m_bvhAabbMin;
+			return vecOut;
+	}
+
+	///setTraversalMode let's you choose between stackless, recursive or stackless cache friendly tree traversal. Note this is only implemented for quantized trees.
+	void	setTraversalMode(btTraversalMode	traversalMode)
+	{
+		m_traversalMode = traversalMode;
+	}
+
+
+	SIMD_FORCE_INLINE QuantizedNodeArray&	getQuantizedNodeArray()
+	{	
+		return	m_quantizedContiguousNodes;
+	}
+
+
+	SIMD_FORCE_INLINE BvhSubtreeInfoArray&	getSubtreeInfoArray()
+	{
+		return m_SubtreeHeaders;
+	}
+
+////////////////////////////////////////////////////////////////////
+
+	/////Calculate space needed to store BVH for serialization
+	unsigned calculateSerializeBufferSize() const;
+
+	/// Data buffer MUST be 16 byte aligned
+	virtual bool serialize(void *o_alignedDataBuffer, unsigned i_dataBufferSize, bool i_swapEndian) const;
+
+	///deSerializeInPlace loads and initializes a BVH from a buffer in memory 'in place'
+	static btQuantizedBvh *deSerializeInPlace(void *i_alignedDataBuffer, unsigned int i_dataBufferSize, bool i_swapEndian);
+
+	static unsigned int getAlignmentSerializationPadding();
+//////////////////////////////////////////////////////////////////////
+
+	
+	virtual	int	calculateSerializeBufferSizeNew() const;
+
+	///fills the dataBuffer and returns the struct name (and 0 on failure)
+	virtual	const char*	serialize(void* dataBuffer, btSerializer* serializer) const;
+
+	virtual	void deSerializeFloat(struct btQuantizedBvhFloatData& quantizedBvhFloatData);
+
+	virtual	void deSerializeDouble(struct btQuantizedBvhDoubleData& quantizedBvhDoubleData);
+
+
+////////////////////////////////////////////////////////////////////
+
+	SIMD_FORCE_INLINE bool isQuantized()
+	{
+		return m_useQuantization;
+	}
+
+private:
+	// Special "copy" constructor that allows for in-place deserialization
+	// Prevents btVector3's default constructor from being called, but doesn't inialize much else
+	// ownsMemory should most likely be false if deserializing, and if you are not, don't call this (it also changes the function signature, which we need)
+	btQuantizedBvh(btQuantizedBvh &other, bool ownsMemory);
+
+}
+;
+
+
+struct	btBvhSubtreeInfoData
+{
+	int			m_rootNodeIndex;
+	int			m_subtreeSize;
+	unsigned short m_quantizedAabbMin[3];
+	unsigned short m_quantizedAabbMax[3];
+};
+
+struct btOptimizedBvhNodeFloatData
+{
+	btVector3FloatData	m_aabbMinOrg;
+	btVector3FloatData	m_aabbMaxOrg;
+	int	m_escapeIndex;
+	int	m_subPart;
+	int	m_triangleIndex;
+	char m_pad[4];
+};
+
+struct btOptimizedBvhNodeDoubleData
+{
+	btVector3DoubleData	m_aabbMinOrg;
+	btVector3DoubleData	m_aabbMaxOrg;
+	int	m_escapeIndex;
+	int	m_subPart;
+	int	m_triangleIndex;
+	char	m_pad[4];
+};
+
+
+struct btQuantizedBvhNodeData
+{
+	unsigned short m_quantizedAabbMin[3];
+	unsigned short m_quantizedAabbMax[3];
+	int	m_escapeIndexOrTriangleIndex;
+};
+
+struct	btQuantizedBvhFloatData
+{
+	btVector3FloatData			m_bvhAabbMin;
+	btVector3FloatData			m_bvhAabbMax;
+	btVector3FloatData			m_bvhQuantization;
+	int					m_curNodeIndex;
+	int					m_useQuantization;
+	int					m_numContiguousLeafNodes;
+	int					m_numQuantizedContiguousNodes;
+	btOptimizedBvhNodeFloatData	*m_contiguousNodesPtr;
+	btQuantizedBvhNodeData		*m_quantizedContiguousNodesPtr;
+	btBvhSubtreeInfoData	*m_subTreeInfoPtr;
+	int					m_traversalMode;
+	int					m_numSubtreeHeaders;
+	
+};
+
+struct	btQuantizedBvhDoubleData
+{
+	btVector3DoubleData			m_bvhAabbMin;
+	btVector3DoubleData			m_bvhAabbMax;
+	btVector3DoubleData			m_bvhQuantization;
+	int							m_curNodeIndex;
+	int							m_useQuantization;
+	int							m_numContiguousLeafNodes;
+	int							m_numQuantizedContiguousNodes;
+	btOptimizedBvhNodeDoubleData	*m_contiguousNodesPtr;
+	btQuantizedBvhNodeData			*m_quantizedContiguousNodesPtr;
+
+	int							m_traversalMode;
+	int							m_numSubtreeHeaders;
+	btBvhSubtreeInfoData		*m_subTreeInfoPtr;
+};
+
+
+SIMD_FORCE_INLINE	int	btQuantizedBvh::calculateSerializeBufferSizeNew() const
+{
+	return sizeof(btQuantizedBvhData);
+}
+
+
+
+#endif //QUANTIZED_BVH_H

libs/bullet/BulletCollision/BroadphaseCollision/btSimpleBroadphase.cpp

@@ -0,0 +1,349 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+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.
+*/
+
+#include "btSimpleBroadphase.h"
+#include "BulletCollision/BroadphaseCollision/btDispatcher.h"
+#include "BulletCollision/BroadphaseCollision/btCollisionAlgorithm.h"
+
+#include "LinearMath/btVector3.h"
+#include "LinearMath/btTransform.h"
+#include "LinearMath/btMatrix3x3.h"
+#include "LinearMath/btAabbUtil2.h"
+
+#include <new>
+
+extern int gOverlappingPairs;
+
+void	btSimpleBroadphase::validate()
+{
+	for (int i=0;i<m_numHandles;i++)
+	{
+		for (int j=i+1;j<m_numHandles;j++)
+		{
+			btAssert(&m_pHandles[i] != &m_pHandles[j]);
+		}
+	}
+	
+}
+
+btSimpleBroadphase::btSimpleBroadphase(int maxProxies, btOverlappingPairCache* overlappingPairCache)
+	:m_pairCache(overlappingPairCache),
+	m_ownsPairCache(false),
+	m_invalidPair(0)
+{
+
+	if (!overlappingPairCache)
+	{
+		void* mem = btAlignedAlloc(sizeof(btHashedOverlappingPairCache),16);
+		m_pairCache = new (mem)btHashedOverlappingPairCache();
+		m_ownsPairCache = true;
+	}
+
+	// allocate handles buffer and put all handles on free list
+	m_pHandlesRawPtr = btAlignedAlloc(sizeof(btSimpleBroadphaseProxy)*maxProxies,16);
+	m_pHandles = new(m_pHandlesRawPtr) btSimpleBroadphaseProxy[maxProxies];
+	m_maxHandles = maxProxies;
+	m_numHandles = 0;
+	m_firstFreeHandle = 0;
+	m_LastHandleIndex = -1;
+	
+
+	{
+		for (int i = m_firstFreeHandle; i < maxProxies; i++)
+		{
+			m_pHandles[i].SetNextFree(i + 1);
+			m_pHandles[i].m_uniqueId = i+2;//any UID will do, we just avoid too trivial values (0,1) for debugging purposes
+		}
+		m_pHandles[maxProxies - 1].SetNextFree(0);
+	
+	}
+
+}
+
+btSimpleBroadphase::~btSimpleBroadphase()
+{
+	btAlignedFree(m_pHandlesRawPtr);
+
+	if (m_ownsPairCache)
+	{
+		m_pairCache->~btOverlappingPairCache();
+		btAlignedFree(m_pairCache);
+	}
+}
+
+
+btBroadphaseProxy*	btSimpleBroadphase::createProxy(  const btVector3& aabbMin,  const btVector3& aabbMax,int shapeType,void* userPtr ,short int collisionFilterGroup,short int collisionFilterMask, btDispatcher* /*dispatcher*/,void* multiSapProxy)
+{
+	if (m_numHandles >= m_maxHandles)
+	{
+		btAssert(0);
+		return 0; //should never happen, but don't let the game crash ;-)
+	}
+	btAssert(aabbMin[0]<= aabbMax[0] && aabbMin[1]<= aabbMax[1] && aabbMin[2]<= aabbMax[2]);
+
+	int newHandleIndex = allocHandle();
+	btSimpleBroadphaseProxy* proxy = new (&m_pHandles[newHandleIndex])btSimpleBroadphaseProxy(aabbMin,aabbMax,shapeType,userPtr,collisionFilterGroup,collisionFilterMask,multiSapProxy);
+
+	return proxy;
+}
+
+class	RemovingOverlapCallback : public btOverlapCallback
+{
+protected:
+	virtual bool	processOverlap(btBroadphasePair& pair)
+	{
+		(void)pair;
+		btAssert(0);
+		return false;
+	}
+};
+
+class RemovePairContainingProxy
+{
+
+	btBroadphaseProxy*	m_targetProxy;
+	public:
+	virtual ~RemovePairContainingProxy()
+	{
+	}
+protected:
+	virtual bool processOverlap(btBroadphasePair& pair)
+	{
+		btSimpleBroadphaseProxy* proxy0 = static_cast<btSimpleBroadphaseProxy*>(pair.m_pProxy0);
+		btSimpleBroadphaseProxy* proxy1 = static_cast<btSimpleBroadphaseProxy*>(pair.m_pProxy1);
+
+		return ((m_targetProxy == proxy0 || m_targetProxy == proxy1));
+	};
+};
+
+void	btSimpleBroadphase::destroyProxy(btBroadphaseProxy* proxyOrg,btDispatcher* dispatcher)
+{
+		
+		btSimpleBroadphaseProxy* proxy0 = static_cast<btSimpleBroadphaseProxy*>(proxyOrg);
+		freeHandle(proxy0);
+
+		m_pairCache->removeOverlappingPairsContainingProxy(proxyOrg,dispatcher);
+
+		//validate();
+		
+}
+
+void	btSimpleBroadphase::getAabb(btBroadphaseProxy* proxy,btVector3& aabbMin, btVector3& aabbMax ) const
+{
+	const btSimpleBroadphaseProxy* sbp = getSimpleProxyFromProxy(proxy);
+	aabbMin = sbp->m_aabbMin;
+	aabbMax = sbp->m_aabbMax;
+}
+
+void	btSimpleBroadphase::setAabb(btBroadphaseProxy* proxy,const btVector3& aabbMin,const btVector3& aabbMax, btDispatcher* /*dispatcher*/)
+{
+	btSimpleBroadphaseProxy* sbp = getSimpleProxyFromProxy(proxy);
+	sbp->m_aabbMin = aabbMin;
+	sbp->m_aabbMax = aabbMax;
+}
+
+void	btSimpleBroadphase::rayTest(const btVector3& rayFrom,const btVector3& rayTo, btBroadphaseRayCallback& rayCallback, const btVector3& aabbMin,const btVector3& aabbMax)
+{
+	for (int i=0; i <= m_LastHandleIndex; i++)
+	{
+		btSimpleBroadphaseProxy* proxy = &m_pHandles[i];
+		if(!proxy->m_clientObject)
+		{
+			continue;
+		}
+		rayCallback.process(proxy);
+	}
+}
+
+
+void	btSimpleBroadphase::aabbTest(const btVector3& aabbMin, const btVector3& aabbMax, btBroadphaseAabbCallback& callback)
+{
+	for (int i=0; i <= m_LastHandleIndex; i++)
+	{
+		btSimpleBroadphaseProxy* proxy = &m_pHandles[i];
+		if(!proxy->m_clientObject)
+		{
+			continue;
+		}
+		if (TestAabbAgainstAabb2(aabbMin,aabbMax,proxy->m_aabbMin,proxy->m_aabbMax))
+		{
+			callback.process(proxy);
+		}
+	}
+}
+
+
+
+	
+
+
+
+bool	btSimpleBroadphase::aabbOverlap(btSimpleBroadphaseProxy* proxy0,btSimpleBroadphaseProxy* proxy1)
+{
+	return proxy0->m_aabbMin[0] <= proxy1->m_aabbMax[0] && proxy1->m_aabbMin[0] <= proxy0->m_aabbMax[0] && 
+		   proxy0->m_aabbMin[1] <= proxy1->m_aabbMax[1] && proxy1->m_aabbMin[1] <= proxy0->m_aabbMax[1] &&
+		   proxy0->m_aabbMin[2] <= proxy1->m_aabbMax[2] && proxy1->m_aabbMin[2] <= proxy0->m_aabbMax[2];
+
+}
+
+
+
+//then remove non-overlapping ones
+class CheckOverlapCallback : public btOverlapCallback
+{
+public:
+	virtual bool processOverlap(btBroadphasePair& pair)
+	{
+		return (!btSimpleBroadphase::aabbOverlap(static_cast<btSimpleBroadphaseProxy*>(pair.m_pProxy0),static_cast<btSimpleBroadphaseProxy*>(pair.m_pProxy1)));
+	}
+};
+
+void	btSimpleBroadphase::calculateOverlappingPairs(btDispatcher* dispatcher)
+{
+	//first check for new overlapping pairs
+	int i,j;
+	if (m_numHandles >= 0)
+	{
+		int new_largest_index = -1;
+		for (i=0; i <= m_LastHandleIndex; i++)
+		{
+			btSimpleBroadphaseProxy* proxy0 = &m_pHandles[i];
+			if(!proxy0->m_clientObject)
+			{
+				continue;
+			}
+			new_largest_index = i;
+			for (j=i+1; j <= m_LastHandleIndex; j++)
+			{
+				btSimpleBroadphaseProxy* proxy1 = &m_pHandles[j];
+				btAssert(proxy0 != proxy1);
+				if(!proxy1->m_clientObject)
+				{
+					continue;
+				}
+
+				btSimpleBroadphaseProxy* p0 = getSimpleProxyFromProxy(proxy0);
+				btSimpleBroadphaseProxy* p1 = getSimpleProxyFromProxy(proxy1);
+
+				if (aabbOverlap(p0,p1))
+				{
+					if ( !m_pairCache->findPair(proxy0,proxy1))
+					{
+						m_pairCache->addOverlappingPair(proxy0,proxy1);
+					}
+				} else
+				{
+					if (!m_pairCache->hasDeferredRemoval())
+					{
+						if ( m_pairCache->findPair(proxy0,proxy1))
+						{
+							m_pairCache->removeOverlappingPair(proxy0,proxy1,dispatcher);
+						}
+					}
+				}
+			}
+		}
+
+		m_LastHandleIndex = new_largest_index;
+
+		if (m_ownsPairCache && m_pairCache->hasDeferredRemoval())
+		{
+
+			btBroadphasePairArray&	overlappingPairArray = m_pairCache->getOverlappingPairArray();
+
+			//perform a sort, to find duplicates and to sort 'invalid' pairs to the end
+			overlappingPairArray.quickSort(btBroadphasePairSortPredicate());
+
+			overlappingPairArray.resize(overlappingPairArray.size() - m_invalidPair);
+			m_invalidPair = 0;
+
+
+			btBroadphasePair previousPair;
+			previousPair.m_pProxy0 = 0;
+			previousPair.m_pProxy1 = 0;
+			previousPair.m_algorithm = 0;
+
+
+			for (i=0;i<overlappingPairArray.size();i++)
+			{
+
+				btBroadphasePair& pair = overlappingPairArray[i];
+
+				bool isDuplicate = (pair == previousPair);
+
+				previousPair = pair;
+
+				bool needsRemoval = false;
+
+				if (!isDuplicate)
+				{
+					bool hasOverlap = testAabbOverlap(pair.m_pProxy0,pair.m_pProxy1);
+
+					if (hasOverlap)
+					{
+						needsRemoval = false;//callback->processOverlap(pair);
+					} else
+					{
+						needsRemoval = true;
+					}
+				} else
+				{
+					//remove duplicate
+					needsRemoval = true;
+					//should have no algorithm
+					btAssert(!pair.m_algorithm);
+				}
+
+				if (needsRemoval)
+				{
+					m_pairCache->cleanOverlappingPair(pair,dispatcher);
+
+					//		m_overlappingPairArray.swap(i,m_overlappingPairArray.size()-1);
+					//		m_overlappingPairArray.pop_back();
+					pair.m_pProxy0 = 0;
+					pair.m_pProxy1 = 0;
+					m_invalidPair++;
+					gOverlappingPairs--;
+				} 
+
+			}
+
+			///if you don't like to skip the invalid pairs in the array, execute following code:
+#define CLEAN_INVALID_PAIRS 1
+#ifdef CLEAN_INVALID_PAIRS
+
+			//perform a sort, to sort 'invalid' pairs to the end
+			overlappingPairArray.quickSort(btBroadphasePairSortPredicate());
+
+			overlappingPairArray.resize(overlappingPairArray.size() - m_invalidPair);
+			m_invalidPair = 0;
+#endif//CLEAN_INVALID_PAIRS
+
+		}
+	}
+}
+
+
+bool btSimpleBroadphase::testAabbOverlap(btBroadphaseProxy* proxy0,btBroadphaseProxy* proxy1)
+{
+	btSimpleBroadphaseProxy* p0 = getSimpleProxyFromProxy(proxy0);
+	btSimpleBroadphaseProxy* p1 = getSimpleProxyFromProxy(proxy1);
+	return aabbOverlap(p0,p1);
+}
+
+void	btSimpleBroadphase::resetPool(btDispatcher* dispatcher)
+{
+	//not yet
+}

libs/bullet/BulletCollision/BroadphaseCollision/btSimpleBroadphase.h

@@ -0,0 +1,171 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+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 SIMPLE_BROADPHASE_H
+#define SIMPLE_BROADPHASE_H
+
+
+#include "btOverlappingPairCache.h"
+
+
+struct btSimpleBroadphaseProxy : public btBroadphaseProxy
+{
+	int			m_nextFree;
+	
+//	int			m_handleId;
+
+	
+	btSimpleBroadphaseProxy() {};
+
+	btSimpleBroadphaseProxy(const btVector3& minpt,const btVector3& maxpt,int shapeType,void* userPtr,short int collisionFilterGroup,short int collisionFilterMask,void* multiSapProxy)
+	:btBroadphaseProxy(minpt,maxpt,userPtr,collisionFilterGroup,collisionFilterMask,multiSapProxy)
+	{
+		(void)shapeType;
+	}
+	
+	
+	SIMD_FORCE_INLINE void SetNextFree(int next) {m_nextFree = next;}
+	SIMD_FORCE_INLINE int GetNextFree() const {return m_nextFree;}
+
+	
+
+
+};
+
+///The SimpleBroadphase is just a unit-test for btAxisSweep3, bt32BitAxisSweep3, or btDbvtBroadphase, so use those classes instead.
+///It is a brute force aabb culling broadphase based on O(n^2) aabb checks
+class btSimpleBroadphase : public btBroadphaseInterface
+{
+
+protected:
+
+	int		m_numHandles;						// number of active handles
+	int		m_maxHandles;						// max number of handles
+	int		m_LastHandleIndex;							
+	
+	btSimpleBroadphaseProxy* m_pHandles;						// handles pool
+
+	void* m_pHandlesRawPtr;
+	int		m_firstFreeHandle;		// free handles list
+	
+	int allocHandle()
+	{
+		btAssert(m_numHandles < m_maxHandles);
+		int freeHandle = m_firstFreeHandle;
+		m_firstFreeHandle = m_pHandles[freeHandle].GetNextFree();
+		m_numHandles++;
+		if(freeHandle > m_LastHandleIndex)
+		{
+			m_LastHandleIndex = freeHandle;
+		}
+		return freeHandle;
+	}
+
+	void freeHandle(btSimpleBroadphaseProxy* proxy)
+	{
+		int handle = int(proxy-m_pHandles);
+		btAssert(handle >= 0 && handle < m_maxHandles);
+		if(handle == m_LastHandleIndex)
+		{
+			m_LastHandleIndex--;
+		}
+		proxy->SetNextFree(m_firstFreeHandle);
+		m_firstFreeHandle = handle;
+
+		proxy->m_clientObject = 0;
+
+		m_numHandles--;
+	}
+
+	btOverlappingPairCache*	m_pairCache;
+	bool	m_ownsPairCache;
+
+	int	m_invalidPair;
+
+	
+	
+	inline btSimpleBroadphaseProxy*	getSimpleProxyFromProxy(btBroadphaseProxy* proxy)
+	{
+		btSimpleBroadphaseProxy* proxy0 = static_cast<btSimpleBroadphaseProxy*>(proxy);
+		return proxy0;
+	}
+
+	inline const btSimpleBroadphaseProxy*	getSimpleProxyFromProxy(btBroadphaseProxy* proxy) const
+	{
+		const btSimpleBroadphaseProxy* proxy0 = static_cast<const btSimpleBroadphaseProxy*>(proxy);
+		return proxy0;
+	}
+
+	///reset broadphase internal structures, to ensure determinism/reproducability
+	virtual void resetPool(btDispatcher* dispatcher);
+
+
+	void	validate();
+
+protected:
+
+
+	
+
+public:
+	btSimpleBroadphase(int maxProxies=16384,btOverlappingPairCache* overlappingPairCache=0);
+	virtual ~btSimpleBroadphase();
+
+
+		static bool	aabbOverlap(btSimpleBroadphaseProxy* proxy0,btSimpleBroadphaseProxy* proxy1);
+
+
+	virtual btBroadphaseProxy*	createProxy(  const btVector3& aabbMin,  const btVector3& aabbMax,int shapeType,void* userPtr ,short int collisionFilterGroup,short int collisionFilterMask, btDispatcher* dispatcher,void* multiSapProxy);
+
+	virtual void	calculateOverlappingPairs(btDispatcher* dispatcher);
+
+	virtual void	destroyProxy(btBroadphaseProxy* proxy,btDispatcher* dispatcher);
+	virtual void	setAabb(btBroadphaseProxy* proxy,const btVector3& aabbMin,const btVector3& aabbMax, btDispatcher* dispatcher);
+	virtual void	getAabb(btBroadphaseProxy* proxy,btVector3& aabbMin, btVector3& aabbMax ) const;
+
+	virtual void	rayTest(const btVector3& rayFrom,const btVector3& rayTo, btBroadphaseRayCallback& rayCallback, const btVector3& aabbMin=btVector3(0,0,0),const btVector3& aabbMax=btVector3(0,0,0));
+	virtual void	aabbTest(const btVector3& aabbMin, const btVector3& aabbMax, btBroadphaseAabbCallback& callback);
+		
+	btOverlappingPairCache*	getOverlappingPairCache()
+	{
+		return m_pairCache;
+	}
+	const btOverlappingPairCache*	getOverlappingPairCache() const
+	{
+		return m_pairCache;
+	}
+
+	bool	testAabbOverlap(btBroadphaseProxy* proxy0,btBroadphaseProxy* proxy1);
+
+
+	///getAabb returns the axis aligned bounding box in the 'global' coordinate frame
+	///will add some transform later
+	virtual void getBroadphaseAabb(btVector3& aabbMin,btVector3& aabbMax) const
+	{
+		aabbMin.setValue(-BT_LARGE_FLOAT,-BT_LARGE_FLOAT,-BT_LARGE_FLOAT);
+		aabbMax.setValue(BT_LARGE_FLOAT,BT_LARGE_FLOAT,BT_LARGE_FLOAT);
+	}
+
+	virtual void	printStats()
+	{
+//		printf("btSimpleBroadphase.h\n");
+//		printf("numHandles = %d, maxHandles = %d\n",m_numHandles,m_maxHandles);
+	}
+};
+
+
+
+#endif //SIMPLE_BROADPHASE_H
+