Initial commit:

PhysX 3.4.0 Update @ 21294896
APEX 1.4.0 Update @ 21275617

[CL 21300167]

1 files changed, 138 insertions, 0 deletions

diff --git a/PhysX_3.4/Source/LowLevelCloth/src/SwCollision.h b/PhysX_3.4/Source/LowLevelCloth/src/SwCollision.h
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+++ b/PhysX_3.4/Source/LowLevelCloth/src/SwCollision.h
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+// This code contains NVIDIA Confidential Information and is disclosed to you
+// under a form of NVIDIA software license agreement provided separately to you.
+//
+// Notice
+// NVIDIA Corporation and its licensors retain all intellectual property and
+// proprietary rights in and to this software and related documentation and
+// any modifications thereto. Any use, reproduction, disclosure, or
+// distribution of this software and related documentation without an express
+// license agreement from NVIDIA Corporation is strictly prohibited.
+//
+// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES
+// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO
+// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT,
+// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE.
+//
+// Information and code furnished is believed to be accurate and reliable.
+// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such
+// information or for any infringement of patents or other rights of third parties that may
+// result from its use. No license is granted by implication or otherwise under any patent
+// or patent rights of NVIDIA Corporation. Details are subject to change without notice.
+// This code supersedes and replaces all information previously supplied.
+// NVIDIA Corporation products are not authorized for use as critical
+// components in life support devices or systems without express written approval of
+// NVIDIA Corporation.
+//
+// Copyright (c) 2008-2016 NVIDIA Corporation. All rights reserved.
+// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
+// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
+
+#pragma once
+
+#include "Types.h"
+#include "StackAllocator.h"
+#include "Simd.h"
+
+namespace physx
+{
+namespace cloth
+{
+
+class SwCloth;
+struct SwClothData;
+template <typename>
+struct IterationState;
+struct IndexPair;
+struct SphereData;
+struct ConeData;
+struct TriangleData;
+
+typedef StackAllocator<16> SwKernelAllocator;
+
+/**
+   Collision handler for SwSolver.
+ */
+template <typename Simd4f>
+class SwCollision
+{
+	typedef typename Simd4fToSimd4i<Simd4f>::Type Simd4i;
+
+  public:
+	struct ShapeMask
+	{
+		Simd4i mCones;
+		Simd4i mSpheres;
+
+		ShapeMask& operator=(const ShapeMask&);
+		ShapeMask& operator&=(const ShapeMask&);
+	};
+
+	struct CollisionData
+	{
+		CollisionData();
+		SphereData* mSpheres;
+		ConeData* mCones;
+	};
+
+	struct ImpulseAccumulator;
+
+  public:
+	SwCollision(SwClothData& clothData, SwKernelAllocator& alloc);
+	~SwCollision();
+
+	void operator()(const IterationState<Simd4f>& state);
+
+	static size_t estimateTemporaryMemory(const SwCloth& cloth);
+	static size_t estimatePersistentMemory(const SwCloth& cloth);
+
+  private:
+	SwCollision& operator=(const SwCollision&); // not implemented
+	void allocate(CollisionData&);
+	void deallocate(const CollisionData&);
+
+	void computeBounds();
+
+	void buildSphereAcceleration(const SphereData*);
+	void buildConeAcceleration();
+	static void mergeAcceleration(uint32_t*);
+	bool buildAcceleration();
+
+	static ShapeMask getShapeMask(const Simd4f&, const Simd4i*, const Simd4i*);
+	ShapeMask getShapeMask(const Simd4f*) const;
+	ShapeMask getShapeMask(const Simd4f*, const Simd4f*) const;
+
+	void collideSpheres(const Simd4i&, const Simd4f*, ImpulseAccumulator&) const;
+	Simd4i collideCones(const Simd4f*, ImpulseAccumulator&) const;
+
+	void collideSpheres(const Simd4i&, const Simd4f*, Simd4f*, ImpulseAccumulator&) const;
+	Simd4i collideCones(const Simd4f*, Simd4f*, ImpulseAccumulator&) const;
+
+	void collideParticles();
+	void collideVirtualParticles();
+	void collideContinuousParticles();
+
+	void collideConvexes(const IterationState<Simd4f>&);
+	void collideConvexes(const Simd4f*, Simd4f*, ImpulseAccumulator&);
+
+	void collideTriangles(const IterationState<Simd4f>&);
+	void collideTriangles(const TriangleData*, Simd4f*, ImpulseAccumulator&);
+
+  public:
+	// acceleration structure
+	static const uint32_t sGridSize = 8;
+	Simd4i mSphereGrid[6 * sGridSize / 4];
+	Simd4i mConeGrid[6 * sGridSize / 4];
+	Simd4f mGridScale, mGridBias;
+
+	CollisionData mPrevData;
+	CollisionData mCurData;
+
+	SwClothData& mClothData;
+	SwKernelAllocator& mAllocator;
+
+	uint32_t mNumCollisions;
+
+	static const Simd4f sSkeletonWidth;
+};
+}
+}