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//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of NVIDIA CORPORATION nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Copyright (c) 2008-2018 NVIDIA Corporation. All rights reserved.
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
#ifndef GU_BV4_H
#define GU_BV4_H
#include "foundation/PxBounds3.h"
#include "PxSerialFramework.h"
#include "PsUserAllocated.h"
#include "GuBV4Settings.h"
#define V4LoadU_Safe V4LoadU
#define V4LoadA_Safe V4LoadA
#define V4StoreA_Safe V4StoreA
#define V4StoreU_Safe V4StoreU
namespace physx
{
namespace Gu
{
struct VertexPointers
{
const PxVec3* Vertex[3];
};
class IndTri32 : public physx::shdfnd::UserAllocated
{
public:
PX_FORCE_INLINE IndTri32() {}
PX_FORCE_INLINE IndTri32(PxU32 r0, PxU32 r1, PxU32 r2) { mRef[0]=r0; mRef[1]=r1; mRef[2]=r2; }
PX_FORCE_INLINE IndTri32(const IndTri32& triangle)
{
mRef[0] = triangle.mRef[0];
mRef[1] = triangle.mRef[1];
mRef[2] = triangle.mRef[2];
}
PX_FORCE_INLINE ~IndTri32() {}
PxU32 mRef[3];
};
PX_COMPILE_TIME_ASSERT(sizeof(IndTri32)==12);
class IndTri16 : public physx::shdfnd::UserAllocated
{
public:
PX_FORCE_INLINE IndTri16() {}
PX_FORCE_INLINE IndTri16(PxU16 r0, PxU16 r1, PxU16 r2) { mRef[0]=r0; mRef[1]=r1; mRef[2]=r2; }
PX_FORCE_INLINE IndTri16(const IndTri16& triangle)
{
mRef[0] = triangle.mRef[0];
mRef[1] = triangle.mRef[1];
mRef[2] = triangle.mRef[2];
}
PX_FORCE_INLINE ~IndTri16() {}
PxU16 mRef[3];
};
PX_COMPILE_TIME_ASSERT(sizeof(IndTri16)==6);
PX_FORCE_INLINE void getVertexReferences(PxU32& vref0, PxU32& vref1, PxU32& vref2, PxU32 index, const IndTri32* T32, const IndTri16* T16)
{
if(T32)
{
const IndTri32* PX_RESTRICT tri = T32 + index;
vref0 = tri->mRef[0];
vref1 = tri->mRef[1];
vref2 = tri->mRef[2];
}
else
{
const IndTri16* PX_RESTRICT tri = T16 + index;
vref0 = tri->mRef[0];
vref1 = tri->mRef[1];
vref2 = tri->mRef[2];
}
}
class SourceMesh : public physx::shdfnd::UserAllocated
{
public:
PX_PHYSX_COMMON_API SourceMesh();
PX_PHYSX_COMMON_API ~SourceMesh();
// PX_SERIALIZATION
SourceMesh(const PxEMPTY) {}
static void getBinaryMetaData(PxOutputStream& stream);
//~PX_SERIALIZATION
void reset();
void operator = (SourceMesh& v);
PxU32 mNbVerts;
const PxVec3* mVerts;
PxU32 mNbTris;
IndTri32* mTriangles32;
IndTri16* mTriangles16;
PX_FORCE_INLINE PxU32 getNbTriangles() const { return mNbTris; }
PX_FORCE_INLINE PxU32 getNbVertices() const { return mNbVerts; }
PX_FORCE_INLINE const IndTri32* getTris32() const { return mTriangles32; }
PX_FORCE_INLINE const IndTri16* getTris16() const { return mTriangles16; }
PX_FORCE_INLINE const PxVec3* getVerts() const { return mVerts; }
PX_FORCE_INLINE void setNbTriangles(PxU32 nb) { mNbTris = nb; }
PX_FORCE_INLINE void setNbVertices(PxU32 nb) { mNbVerts = nb; }
PX_FORCE_INLINE void setPointers(IndTri32* tris32, IndTri16* tris16, const PxVec3* verts)
{
mTriangles32 = tris32;
mTriangles16 = tris16;
mVerts = verts;
}
PX_FORCE_INLINE void initRemap() { mRemap = NULL; }
PX_FORCE_INLINE const PxU32* getRemap() const { return mRemap; }
PX_FORCE_INLINE void releaseRemap() { PX_FREE_AND_RESET(mRemap); }
void remapTopology(const PxU32* order);
bool isValid() const;
PX_FORCE_INLINE void getTriangle(VertexPointers& vp, PxU32 index) const
{
PxU32 VRef0, VRef1, VRef2;
getVertexReferences(VRef0, VRef1, VRef2, index, mTriangles32, mTriangles16);
vp.Vertex[0] = mVerts + VRef0;
vp.Vertex[1] = mVerts + VRef1;
vp.Vertex[2] = mVerts + VRef2;
}
private:
PxU32* mRemap;
};
struct LocalBounds
{
// PX_SERIALIZATION
LocalBounds(const PxEMPTY) {}
//~PX_SERIALIZATION
LocalBounds() : mCenter(PxVec3(0.0f)), mExtentsMagnitude(0.0f) {}
PxVec3 mCenter;
float mExtentsMagnitude;
PX_FORCE_INLINE void init(const PxBounds3& bounds)
{
mCenter = bounds.getCenter();
// PT: TODO: compute mag first, then multiplies by 0.5f (TA34704)
mExtentsMagnitude = bounds.getExtents().magnitude();
}
};
#ifdef GU_BV4_QUANTIZED_TREE
class QuantizedAABB
{
public:
struct Data
{
PxU16 mExtents; //!< Quantized extents
PxI16 mCenter; //!< Quantized center
};
Data mData[3];
};
PX_COMPILE_TIME_ASSERT(sizeof(QuantizedAABB)==12);
#endif
/////
#define GU_BV4_CHILD_OFFSET_SHIFT_COUNT 11
struct BVDataPacked : public physx::shdfnd::UserAllocated
{
#ifdef GU_BV4_QUANTIZED_TREE
QuantizedAABB mAABB;
#else
CenterExtents mAABB;
#endif
PxU32 mData;
PX_FORCE_INLINE PxU32 isLeaf() const { return mData&1; }
PX_FORCE_INLINE PxU32 getPrimitive() const { return mData>>1; }
PX_FORCE_INLINE PxU32 getChildOffset() const { return mData>>GU_BV4_CHILD_OFFSET_SHIFT_COUNT;}
PX_FORCE_INLINE PxU32 getChildType() const { return (mData>>1)&3; }
PX_FORCE_INLINE PxU32 getChildData() const { return mData; }
PX_FORCE_INLINE void encodePNS(PxU32 code)
{
PX_ASSERT(code<256);
mData |= code<<3;
}
PX_FORCE_INLINE PxU32 decodePNSNoShift() const { return mData; }
};
// PT: TODO: align class to 16? (TA34704)
class BV4Tree : public physx::shdfnd::UserAllocated
{
public:
// PX_SERIALIZATION
BV4Tree(const PxEMPTY);
void exportExtraData(PxSerializationContext&);
void importExtraData(PxDeserializationContext& context);
static void getBinaryMetaData(PxOutputStream& stream);
//~PX_SERIALIZATION
PX_PHYSX_COMMON_API BV4Tree();
PX_PHYSX_COMMON_API BV4Tree(SourceMesh* meshInterface, const PxBounds3& localBounds);
PX_PHYSX_COMMON_API ~BV4Tree();
bool load(PxInputStream& stream, bool mismatch);
void reset();
void operator = (BV4Tree& v);
bool init(SourceMesh* meshInterface, const PxBounds3& localBounds);
void release();
SourceMesh* mMeshInterface;
LocalBounds mLocalBounds;
PxU32 mNbNodes;
BVDataPacked* mNodes;
PxU32 mInitData;
#ifdef GU_BV4_QUANTIZED_TREE
PxVec3 mCenterOrMinCoeff; // PT: dequantization coeff, either for Center or Min (depending on AABB format)
PxVec3 mExtentsOrMaxCoeff; // PT: dequantization coeff, either for Extents or Max (depending on AABB format)
#endif
bool mUserAllocated; // PT: please keep these 4 bytes right after mCenterOrMinCoeff/mExtentsOrMaxCoeff for safe V4 loading
bool mPadding[3];
};
} // namespace Gu
}
#endif // GU_BV4_H
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