Initial commit:

PhysX 3.4.0 Update @ 21294896
APEX 1.4.0 Update @ 21275617

[CL 21300167]

1 files changed, 110 insertions, 0 deletions

diff --git a/APEX_1.4/common/include/ApexMeshHash.h b/APEX_1.4/common/include/ApexMeshHash.h
new file mode 100644
index 00000000..97a015ad
--- /dev/null
+++ b/APEX_1.4/common/include/ApexMeshHash.h
@@ -0,0 +1,110 @@
+/*
+ * Copyright (c) 2008-2015, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * NVIDIA CORPORATION and its licensors retain all intellectual property
+ * and proprietary rights in and to this software, 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.
+ */
+
+
+#ifndef APEX_MESH_HASH_H
+#define APEX_MESH_HASH_H
+
+#include "ApexDefs.h"
+
+#include "ApexUsingNamespace.h"
+#include "PsUserAllocated.h"
+#include "PsArray.h"
+
+#include "PxVec3.h"
+
+namespace nvidia
+{
+namespace apex
+{
+
+struct MeshHashRoot
+{
+	int32_t first;
+	uint32_t timeStamp;
+};
+
+struct MeshHashEntry
+{
+	int32_t next;
+	uint32_t itemIndex;
+};
+
+
+class ApexMeshHash : public UserAllocated
+{
+public:
+	ApexMeshHash();
+	~ApexMeshHash();
+
+	void   setGridSpacing(float spacing);
+	float getGridSpacing()
+	{
+		return 1.0f / mInvSpacing;
+	}
+	void reset();
+	void add(const PxBounds3& bounds, uint32_t itemIndex);
+	void add(const PxVec3& pos, uint32_t itemIndex);
+
+	void query(const PxBounds3& bounds, physx::Array<uint32_t>& itemIndices, int32_t maxIndices = -1);
+	void queryUnique(const PxBounds3& bounds, physx::Array<uint32_t>& itemIndices, int32_t maxIndices = -1);
+
+	void query(const PxVec3& pos, physx::Array<uint32_t>& itemIndices, int32_t maxIndices = -1);
+	void queryUnique(const PxVec3& pos, physx::Array<uint32_t>& itemIndices, int32_t maxIndices = -1);
+
+	// applied functions, only work if inserted objects are points!
+	int32_t getClosestPointNr(const PxVec3* points, uint32_t numPoints, uint32_t pointStride, const PxVec3& pos);
+
+private:
+	enum
+	{
+		HashIndexSize = 170111
+	};
+
+	void compressIndices(physx::Array<uint32_t>& itemIndices);
+	float mSpacing;
+	float mInvSpacing;
+	uint32_t mTime;
+
+	inline uint32_t  hashFunction(int32_t xi, int32_t yi, int32_t zi)
+	{
+		uint32_t h = (uint32_t)((xi * 92837111) ^(yi * 689287499) ^(zi * 283923481));
+		return h % HashIndexSize;
+	}
+
+	inline void cellCoordOf(const PxVec3& v, int& xi, int& yi, int& zi)
+	{
+		xi = (int)(v.x * mInvSpacing);
+		if (v.x < 0.0f)
+		{
+			xi--;
+		}
+		yi = (int)(v.y * mInvSpacing);
+		if (v.y < 0.0f)
+		{
+			yi--;
+		}
+		zi = (int)(v.z * mInvSpacing);
+		if (v.z < 0.0f)
+		{
+			zi--;
+		}
+	}
+
+	MeshHashRoot* mHashIndex;
+	physx::Array<MeshHashEntry> mEntries;
+
+	physx::Array<uint32_t> mTempIndices;
+};
+
+}
+} // end namespace nvidia::apex
+
+#endif
\ No newline at end of file