329 lines
11 KiB
C
329 lines
11 KiB
C
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// This code contains NVIDIA Confidential Information and is disclosed to you
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// under a form of NVIDIA software license agreement provided separately to you.
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//
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// Notice
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// NVIDIA Corporation and its licensors retain all intellectual property and
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// proprietary rights in and to this software and related documentation and
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// any modifications thereto. Any use, reproduction, disclosure, or
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// distribution of this software and related documentation without an express
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// license agreement from NVIDIA Corporation is strictly prohibited.
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//
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// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES
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// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO
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// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT,
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// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// Information and code furnished is believed to be accurate and reliable.
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// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such
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// information or for any infringement of patents or other rights of third parties that may
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// result from its use. No license is granted by implication or otherwise under any patent
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// or patent rights of NVIDIA Corporation. Details are subject to change without notice.
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// This code supersedes and replaces all information previously supplied.
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// NVIDIA Corporation products are not authorized for use as critical
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// components in life support devices or systems without express written approval of
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// NVIDIA Corporation.
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//
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// Copyright (c) 2008-2013 NVIDIA Corporation. All rights reserved.
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// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
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// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
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#ifndef PX_FOUNDATION_PX_FLAGS_H
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#define PX_FOUNDATION_PX_FLAGS_H
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/** \addtogroup foundation
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@{
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*/
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#include "foundation/Px.h"
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#ifndef PX_DOXYGEN
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namespace physx
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{
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#endif
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/**
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\brief Container for bitfield flag variables associated with a specific enum type.
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This allows for type safe manipulation for bitfields.
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<h3>Example</h3>
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// enum that defines each bit...
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struct MyEnum
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{
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enum Enum
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{
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eMAN = 1,
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eBEAR = 2,
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ePIG = 4,
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};
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};
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// implements some convenient global operators.
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PX_FLAGS_OPERATORS(MyEnum::Enum, PxU8);
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PxFlags<MyEnum::Enum, PxU8> myFlags;
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myFlags |= MyEnum::eMAN;
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myFlags |= MyEnum::eBEAR | MyEnum::ePIG;
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if(myFlags & MyEnum::eBEAR)
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{
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doSomething();
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}
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*/
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template<typename enumtype, typename storagetype=PxU32>
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class PxFlags
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{
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public:
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PX_INLINE explicit PxFlags(const PxEmpty&) {}
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PX_INLINE PxFlags(void);
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PX_INLINE PxFlags(enumtype e);
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PX_INLINE PxFlags(const PxFlags<enumtype,storagetype> &f);
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PX_INLINE explicit PxFlags(storagetype b);
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PX_INLINE bool operator==(enumtype e) const;
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PX_INLINE bool operator==(const PxFlags<enumtype,storagetype> &f) const;
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PX_INLINE bool operator==(bool b) const;
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PX_INLINE bool operator!=(enumtype e) const;
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PX_INLINE bool operator!=(const PxFlags<enumtype,storagetype> &f) const;
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PX_INLINE PxFlags<enumtype,storagetype> &operator =(enumtype e);
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PX_INLINE PxFlags<enumtype,storagetype> &operator|=(enumtype e);
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PX_INLINE PxFlags<enumtype,storagetype> &operator|=(const PxFlags<enumtype,storagetype> &f);
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PX_INLINE PxFlags<enumtype,storagetype> operator| (enumtype e) const;
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PX_INLINE PxFlags<enumtype,storagetype> operator| (const PxFlags<enumtype,storagetype> &f) const;
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PX_INLINE PxFlags<enumtype,storagetype> &operator&=(enumtype e);
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PX_INLINE PxFlags<enumtype,storagetype> &operator&=(const PxFlags<enumtype,storagetype> &f);
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PX_INLINE PxFlags<enumtype,storagetype> operator& (enumtype e) const;
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PX_INLINE PxFlags<enumtype,storagetype> operator& (const PxFlags<enumtype,storagetype> &f) const;
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PX_INLINE PxFlags<enumtype,storagetype> &operator^=(enumtype e);
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PX_INLINE PxFlags<enumtype,storagetype> &operator^=(const PxFlags<enumtype,storagetype> &f);
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PX_INLINE PxFlags<enumtype,storagetype> operator^ (enumtype e) const;
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PX_INLINE PxFlags<enumtype,storagetype> operator^ (const PxFlags<enumtype,storagetype> &f) const;
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PX_INLINE PxFlags<enumtype,storagetype> operator~ (void) const;
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PX_INLINE operator bool(void) const;
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PX_INLINE operator PxU8(void) const;
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PX_INLINE operator PxU16(void) const;
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PX_INLINE operator PxU32(void) const;
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PX_INLINE void clear(enumtype e);
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public:
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friend PX_INLINE PxFlags<enumtype,storagetype> operator&(enumtype a, PxFlags<enumtype,storagetype> &b)
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{
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PxFlags<enumtype,storagetype> out;
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out.mBits = a & b.mBits;
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return out;
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}
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private:
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storagetype mBits;
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};
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#define PX_FLAGS_OPERATORS(enumtype, storagetype) \
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PX_INLINE PxFlags<enumtype, storagetype> operator|(enumtype a, enumtype b) { PxFlags<enumtype, storagetype> r(a); r |= b; return r; } \
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PX_INLINE PxFlags<enumtype, storagetype> operator&(enumtype a, enumtype b) { PxFlags<enumtype, storagetype> r(a); r &= b; return r; } \
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PX_INLINE PxFlags<enumtype, storagetype> operator~(enumtype a) { return ~PxFlags<enumtype, storagetype>(a); }
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template<typename enumtype, typename storagetype>
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PX_INLINE PxFlags<enumtype,storagetype>::PxFlags(void)
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{
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mBits = 0;
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE PxFlags<enumtype,storagetype>::PxFlags(enumtype e)
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{
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mBits = static_cast<storagetype>(e);
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE PxFlags<enumtype,storagetype>::PxFlags(const PxFlags<enumtype,storagetype> &f)
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{
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mBits = f.mBits;
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE PxFlags<enumtype,storagetype>::PxFlags(storagetype b)
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{
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mBits = b;
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE bool PxFlags<enumtype,storagetype>::operator==(enumtype e) const
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{
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return mBits == static_cast<storagetype>(e);
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE bool PxFlags<enumtype,storagetype>::operator==(const PxFlags<enumtype,storagetype>& f) const
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{
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return mBits == f.mBits;
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE bool PxFlags<enumtype,storagetype>::operator==(bool b) const
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{
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return ((bool)*this) == b;
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE bool PxFlags<enumtype,storagetype>::operator!=(enumtype e) const
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{
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return mBits != static_cast<storagetype>(e);
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE bool PxFlags<enumtype,storagetype>::operator!=(const PxFlags<enumtype,storagetype> &f) const
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{
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return mBits != f.mBits;
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE PxFlags<enumtype,storagetype> &PxFlags<enumtype,storagetype>::operator =(enumtype e)
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{
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mBits = static_cast<storagetype>(e);
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return *this;
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE PxFlags<enumtype,storagetype> &PxFlags<enumtype,storagetype>::operator|=(enumtype e)
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{
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mBits |= static_cast<storagetype>(e);
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return *this;
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE PxFlags<enumtype,storagetype> &PxFlags<enumtype,storagetype>::operator|=(const PxFlags<enumtype,storagetype> &f)
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{
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mBits |= f.mBits;
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return *this;
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE PxFlags<enumtype,storagetype> PxFlags<enumtype,storagetype>::operator| (enumtype e) const
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{
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PxFlags<enumtype,storagetype> out(*this);
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out |= e;
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return out;
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE PxFlags<enumtype,storagetype> PxFlags<enumtype,storagetype>::operator| (const PxFlags<enumtype,storagetype> &f) const
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{
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PxFlags<enumtype,storagetype> out(*this);
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out |= f;
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return out;
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE PxFlags<enumtype,storagetype> &PxFlags<enumtype,storagetype>::operator&=(enumtype e)
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{
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mBits &= static_cast<storagetype>(e);
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return *this;
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE PxFlags<enumtype,storagetype> &PxFlags<enumtype,storagetype>::operator&=(const PxFlags<enumtype,storagetype> &f)
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{
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mBits &= f.mBits;
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return *this;
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE PxFlags<enumtype,storagetype> PxFlags<enumtype,storagetype>::operator&(enumtype e) const
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{
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PxFlags<enumtype,storagetype> out = *this;
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out.mBits &= static_cast<storagetype>(e);
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return out;
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE PxFlags<enumtype,storagetype> PxFlags<enumtype,storagetype>::operator& (const PxFlags<enumtype,storagetype> &f) const
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{
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PxFlags<enumtype,storagetype> out = *this;
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out.mBits &= f.mBits;
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return out;
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE PxFlags<enumtype,storagetype> &PxFlags<enumtype,storagetype>::operator^=(enumtype e)
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{
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mBits ^= static_cast<storagetype>(e);
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return *this;
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE PxFlags<enumtype,storagetype> &PxFlags<enumtype,storagetype>::operator^=(const PxFlags<enumtype,storagetype> &f)
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{
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mBits ^= f.mBits;
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return *this;
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE PxFlags<enumtype,storagetype> PxFlags<enumtype,storagetype>::operator^ (enumtype e) const
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{
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PxFlags<enumtype,storagetype> out = *this;
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out.mBits ^= static_cast<storagetype>(e);
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return out;
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE PxFlags<enumtype,storagetype> PxFlags<enumtype,storagetype>::operator^ (const PxFlags<enumtype,storagetype> &f) const
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{
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PxFlags<enumtype,storagetype> out = *this;
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out.mBits ^= f.mBits;
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return out;
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE PxFlags<enumtype,storagetype> PxFlags<enumtype,storagetype>::operator~ (void) const
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{
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PxFlags<enumtype,storagetype> out;
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out.mBits = ~mBits;
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return out;
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE PxFlags<enumtype,storagetype>::operator bool(void) const
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{
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return mBits ? true : false;
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE PxFlags<enumtype,storagetype>::operator PxU8(void) const
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{
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return static_cast<PxU8>(mBits);
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE PxFlags<enumtype,storagetype>::operator PxU16(void) const
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{
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return static_cast<PxU16>(mBits);
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE PxFlags<enumtype,storagetype>::operator PxU32(void) const
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{
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return static_cast<PxU32>(mBits);
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}
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template<typename enumtype, typename storagetype>
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PX_INLINE void PxFlags<enumtype,storagetype>::clear(enumtype e)
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{
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mBits &= ~static_cast<storagetype>(e);
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}
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#ifndef PX_DOXYGEN
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} // namespace physx
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#endif
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/** @} */
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#endif // #ifndef PX_FOUNDATION_PX_FLAGS_H
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