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bullet3/Extras/BulletMultiThreaded/SpuNarrowPhaseCollisionTask/SpuContactResult.h

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C++

/*
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 SPU_CONTACT_RESULT2_H
#define SPU_CONTACT_RESULT2_H
#ifndef WIN32
#include <stdint.h>
#endif
#include "../SpuDoubleBuffer.h"
#include "LinearMath/btTransform.h"
#include "LinearMath/btPoint3.h"
#include "BulletCollision/NarrowPhaseCollision/btPersistentManifold.h"
struct SpuCollisionPairInput
{
uint64_t m_collisionShapes[2];
void* m_spuCollisionShapes[2];
uint64_t m_persistentManifoldPtr;
btVector3 m_primitiveDimensions0;
btVector3 m_primitiveDimensions1;
int m_shapeType0;
int m_shapeType1;
float m_collisionMargin0;
float m_collisionMargin1;
btTransform m_worldTransform0;
btTransform m_worldTransform1;
bool m_isSwapped;
};
struct SpuClosestPointInput
{
SpuClosestPointInput()
:m_maximumDistanceSquared(float(1e30)),
m_stackAlloc(0)
{
}
btTransform m_transformA;
btTransform m_transformB;
float m_maximumDistanceSquared;
class btStackAlloc* m_stackAlloc;
struct SpuConvexPolyhedronVertexData* m_convexVertexData;
};
///SpuContactResult exports the contact points using double-buffered DMA transfers, only when needed
///So when an existing contact point is duplicated, no transfer/refresh is performed.
class SpuContactResult
{
btTransform m_rootWorldTransform0;
btTransform m_rootWorldTransform1;
uint64_t m_manifoldAddress;
btPersistentManifold* m_spuManifold;
bool m_RequiresWriteBack;
bool m_isSwapped;
DoubleBuffer<btPersistentManifold, 1> g_manifoldDmaExport;
public:
SpuContactResult();
virtual ~SpuContactResult();
btPersistentManifold* GetSpuManifold() const
{
return m_spuManifold;
}
virtual void setShapeIdentifiers(int partId0,int index0, int partId1,int index1);
void setContactInfo(btPersistentManifold* spuManifold, uint64_t manifoldAddress,const btTransform& worldTrans0,const btTransform& worldTrans1, bool isSwapped = false);
void writeDoubleBufferedManifold(btPersistentManifold* lsManifold, btPersistentManifold* mmManifold);
virtual void addContactPoint(const btVector3& normalOnBInWorld,const btPoint3& pointInWorld,float depth);
void flush();
};
#endif //SPU_CONTACT_RESULT2_H