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diff --git a/external/NvFoundation/1.1/include/NvFlags.h b/external/NvFoundation/1.1/include/NvFlags.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) 2008-2014 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 NV_NVFOUNDATION_NVFLAGS_H
+#define NV_NVFOUNDATION_NVFLAGS_H
+
+/** \addtogroup foundation
+  @{
+*/
+
+#include "Nv.h"
+
+#if !NV_DOXYGEN
+namespace nvidia
+{
+#endif
+/**
+\brief Container for bitfield flag variables associated with a specific enum type.
+
+This allows for type safe manipulation for bitfields.
+
+<h3>Example</h3>
+    // enum that defines each bit...
+    struct MyEnum
+    {
+        enum Enum
+        {
+            eMAN  = 1,
+            eBEAR = 2,
+            ePIG  = 4,
+        };
+    };
+
+    // implements some convenient global operators.
+    NV_FLAGS_OPERATORS(MyEnum::Enum, uint8_t);
+
+    NvFlags<MyEnum::Enum, uint8_t> myFlags;
+    myFlags |= MyEnum::eMAN;
+    myFlags |= MyEnum::eBEAR | MyEnum::ePIG;
+    if(myFlags & MyEnum::eBEAR)
+    {
+        doSomething();
+    }
+*/
+
+template <typename enumtype, typename storagetype = uint32_t>
+class NvFlags
+{
+  public:
+	typedef storagetype InternalType;
+
+	NV_INLINE explicit NvFlags(const NvEMPTY)
+	{
+	}
+	NV_INLINE NvFlags(void);
+	NV_INLINE NvFlags(enumtype e);
+	NV_INLINE NvFlags(const NvFlags<enumtype, storagetype>& f);
+	NV_INLINE explicit NvFlags(storagetype b);
+
+	NV_INLINE bool isSet(enumtype e) const;
+	NV_INLINE NvFlags<enumtype, storagetype>& set(enumtype e);
+	NV_INLINE bool operator==(enumtype e) const;
+	NV_INLINE bool operator==(const NvFlags<enumtype, storagetype>& f) const;
+	NV_INLINE bool operator==(bool b) const;
+	NV_INLINE bool operator!=(enumtype e) const;
+	NV_INLINE bool operator!=(const NvFlags<enumtype, storagetype>& f) const;
+
+	NV_INLINE NvFlags<enumtype, storagetype>& operator=(const NvFlags<enumtype, storagetype>& f);
+	NV_INLINE NvFlags<enumtype, storagetype>& operator=(enumtype e);
+
+	NV_INLINE NvFlags<enumtype, storagetype>& operator|=(enumtype e);
+	NV_INLINE NvFlags<enumtype, storagetype>& operator|=(const NvFlags<enumtype, storagetype>& f);
+	NV_INLINE NvFlags<enumtype, storagetype> operator|(enumtype e) const;
+	NV_INLINE NvFlags<enumtype, storagetype> operator|(const NvFlags<enumtype, storagetype>& f) const;
+
+	NV_INLINE NvFlags<enumtype, storagetype>& operator&=(enumtype e);
+	NV_INLINE NvFlags<enumtype, storagetype>& operator&=(const NvFlags<enumtype, storagetype>& f);
+	NV_INLINE NvFlags<enumtype, storagetype> operator&(enumtype e) const;
+	NV_INLINE NvFlags<enumtype, storagetype> operator&(const NvFlags<enumtype, storagetype>& f) const;
+
+	NV_INLINE NvFlags<enumtype, storagetype>& operator^=(enumtype e);
+	NV_INLINE NvFlags<enumtype, storagetype>& operator^=(const NvFlags<enumtype, storagetype>& f);
+	NV_INLINE NvFlags<enumtype, storagetype> operator^(enumtype e) const;
+	NV_INLINE NvFlags<enumtype, storagetype> operator^(const NvFlags<enumtype, storagetype>& f) const;
+
+	NV_INLINE NvFlags<enumtype, storagetype> operator~(void) const;
+
+	NV_INLINE operator bool(void) const;
+	NV_INLINE operator uint8_t(void) const;
+	NV_INLINE operator uint16_t(void) const;
+	NV_INLINE operator uint32_t(void) const;
+
+	NV_INLINE void clear(enumtype e);
+
+  public:
+	friend NV_INLINE NvFlags<enumtype, storagetype> operator&(enumtype a, NvFlags<enumtype, storagetype>& b)
+	{
+		NvFlags<enumtype, storagetype> out;
+		out.mBits = a & b.mBits;
+		return out;
+	}
+
+  private:
+	storagetype mBits;
+};
+
+#define NV_FLAGS_OPERATORS(enumtype, storagetype)                                                                      \
+	NV_INLINE NvFlags<enumtype, storagetype> operator|(enumtype a, enumtype b)                                         \
+	{                                                                                                                  \
+		NvFlags<enumtype, storagetype> r(a);                                                                           \
+		r |= b;                                                                                                        \
+		return r;                                                                                                      \
+	}                                                                                                                  \
+	NV_INLINE NvFlags<enumtype, storagetype> operator&(enumtype a, enumtype b)                                         \
+	{                                                                                                                  \
+		NvFlags<enumtype, storagetype> r(a);                                                                           \
+		r &= b;                                                                                                        \
+		return r;                                                                                                      \
+	}                                                                                                                  \
+	NV_INLINE NvFlags<enumtype, storagetype> operator~(enumtype a)                                                     \
+	{                                                                                                                  \
+		return ~NvFlags<enumtype, storagetype>(a);                                                                     \
+	}
+
+#define NV_FLAGS_TYPEDEF(x, y)                                                                                         \
+	typedef NvFlags<x::Enum, y> x##s;                                                                                  \
+	NV_FLAGS_OPERATORS(x::Enum, y)
+
+template <typename enumtype, typename storagetype>
+NV_INLINE NvFlags<enumtype, storagetype>::NvFlags(void)
+{
+	mBits = 0;
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE NvFlags<enumtype, storagetype>::NvFlags(enumtype e)
+{
+	mBits = static_cast<storagetype>(e);
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE NvFlags<enumtype, storagetype>::NvFlags(const NvFlags<enumtype, storagetype>& f)
+{
+	mBits = f.mBits;
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE NvFlags<enumtype, storagetype>::NvFlags(storagetype b)
+{
+	mBits = b;
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE bool NvFlags<enumtype, storagetype>::isSet(enumtype e) const
+{
+	return (mBits & static_cast<storagetype>(e)) == static_cast<storagetype>(e);
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE NvFlags<enumtype, storagetype>& NvFlags<enumtype, storagetype>::set(enumtype e)
+{
+	mBits = static_cast<storagetype>(e);
+	return *this;
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE bool NvFlags<enumtype, storagetype>::operator==(enumtype e) const
+{
+	return mBits == static_cast<storagetype>(e);
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE bool NvFlags<enumtype, storagetype>::operator==(const NvFlags<enumtype, storagetype>& f) const
+{
+	return mBits == f.mBits;
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE bool NvFlags<enumtype, storagetype>::operator==(bool b) const
+{
+	return bool(*this) == b;
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE bool NvFlags<enumtype, storagetype>::operator!=(enumtype e) const
+{
+	return mBits != static_cast<storagetype>(e);
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE bool NvFlags<enumtype, storagetype>::operator!=(const NvFlags<enumtype, storagetype>& f) const
+{
+	return mBits != f.mBits;
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE NvFlags<enumtype, storagetype>& NvFlags<enumtype, storagetype>::operator=(enumtype e)
+{
+	mBits = static_cast<storagetype>(e);
+	return *this;
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE NvFlags<enumtype, storagetype>& NvFlags<enumtype, storagetype>::operator=(const NvFlags<enumtype, storagetype>& f)
+{
+	mBits = f.mBits;
+	return *this;
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE NvFlags<enumtype, storagetype>& NvFlags<enumtype, storagetype>::operator|=(enumtype e)
+{
+	mBits |= static_cast<storagetype>(e);
+	return *this;
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE NvFlags<enumtype, storagetype>& NvFlags<enumtype, storagetype>::
+operator|=(const NvFlags<enumtype, storagetype>& f)
+{
+	mBits |= f.mBits;
+	return *this;
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE NvFlags<enumtype, storagetype> NvFlags<enumtype, storagetype>::operator|(enumtype e) const
+{
+	NvFlags<enumtype, storagetype> out(*this);
+	out |= e;
+	return out;
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE NvFlags<enumtype, storagetype> NvFlags<enumtype, storagetype>::
+operator|(const NvFlags<enumtype, storagetype>& f) const
+{
+	NvFlags<enumtype, storagetype> out(*this);
+	out |= f;
+	return out;
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE NvFlags<enumtype, storagetype>& NvFlags<enumtype, storagetype>::operator&=(enumtype e)
+{
+	mBits &= static_cast<storagetype>(e);
+	return *this;
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE NvFlags<enumtype, storagetype>& NvFlags<enumtype, storagetype>::
+operator&=(const NvFlags<enumtype, storagetype>& f)
+{
+	mBits &= f.mBits;
+	return *this;
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE NvFlags<enumtype, storagetype> NvFlags<enumtype, storagetype>::operator&(enumtype e) const
+{
+	NvFlags<enumtype, storagetype> out = *this;
+	out.mBits &= static_cast<storagetype>(e);
+	return out;
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE NvFlags<enumtype, storagetype> NvFlags<enumtype, storagetype>::
+operator&(const NvFlags<enumtype, storagetype>& f) const
+{
+	NvFlags<enumtype, storagetype> out = *this;
+	out.mBits &= f.mBits;
+	return out;
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE NvFlags<enumtype, storagetype>& NvFlags<enumtype, storagetype>::operator^=(enumtype e)
+{
+	mBits ^= static_cast<storagetype>(e);
+	return *this;
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE NvFlags<enumtype, storagetype>& NvFlags<enumtype, storagetype>::
+operator^=(const NvFlags<enumtype, storagetype>& f)
+{
+	mBits ^= f.mBits;
+	return *this;
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE NvFlags<enumtype, storagetype> NvFlags<enumtype, storagetype>::operator^(enumtype e) const
+{
+	NvFlags<enumtype, storagetype> out = *this;
+	out.mBits ^= static_cast<storagetype>(e);
+	return out;
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE NvFlags<enumtype, storagetype> NvFlags<enumtype, storagetype>::
+operator^(const NvFlags<enumtype, storagetype>& f) const
+{
+	NvFlags<enumtype, storagetype> out = *this;
+	out.mBits ^= f.mBits;
+	return out;
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE NvFlags<enumtype, storagetype> NvFlags<enumtype, storagetype>::operator~(void) const
+{
+	NvFlags<enumtype, storagetype> out;
+	out.mBits = storagetype(~mBits);
+	return out;
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE NvFlags<enumtype, storagetype>::operator bool(void) const
+{
+	return mBits ? true : false;
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE NvFlags<enumtype, storagetype>::operator uint8_t(void) const
+{
+	return static_cast<uint8_t>(mBits);
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE NvFlags<enumtype, storagetype>::operator uint16_t(void) const
+{
+	return static_cast<uint16_t>(mBits);
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE NvFlags<enumtype, storagetype>::operator uint32_t(void) const
+{
+	return static_cast<uint32_t>(mBits);
+}
+
+template <typename enumtype, typename storagetype>
+NV_INLINE void NvFlags<enumtype, storagetype>::clear(enumtype e)
+{
+	mBits &= ~static_cast<storagetype>(e);
+}
+
+#if !NV_DOXYGEN
+} // namespace nvidia
+#endif
+
+/** @} */
+#endif // #ifndef NV_NVFOUNDATION_NVFLAGS_H