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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) 2008-2018 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 PSFOUNDATION_PSUTILITIES_H
#define PSFOUNDATION_PSUTILITIES_H
#include "foundation/PxVec3.h"
#include "foundation/PxAssert.h"
#include "Ps.h"
#include "PsIntrinsics.h"
#include "PsBasicTemplates.h"
namespace physx
{
namespace shdfnd
{
PX_INLINE char littleEndian()
{
int i = 1;
return *(reinterpret_cast<char*>(&i));
}
// PT: checked casts
PX_CUDA_CALLABLE PX_FORCE_INLINE PxU32 to32(PxU64 value)
{
PX_ASSERT(value <= 0xffffffff);
return PxU32(value);
}
PX_CUDA_CALLABLE PX_FORCE_INLINE PxU16 to16(PxU32 value)
{
PX_ASSERT(value <= 0xffff);
return PxU16(value);
}
PX_CUDA_CALLABLE PX_FORCE_INLINE PxU8 to8(PxU16 value)
{
PX_ASSERT(value <= 0xff);
return PxU8(value);
}
PX_CUDA_CALLABLE PX_FORCE_INLINE PxU8 to8(PxU32 value)
{
PX_ASSERT(value <= 0xff);
return PxU8(value);
}
PX_CUDA_CALLABLE PX_FORCE_INLINE PxU8 to8(PxI32 value)
{
PX_ASSERT(value <= 0xff);
PX_ASSERT(value >= 0);
return PxU8(value);
}
PX_CUDA_CALLABLE PX_FORCE_INLINE PxI8 toI8(PxU32 value)
{
PX_ASSERT(value <= 0x7f);
return PxI8(value);
}
/*!
Get number of elements in array
*/
template <typename T, size_t N>
char (&ArraySizeHelper(T (&array)[N]))[N];
#define PX_ARRAY_SIZE(_array) (sizeof(physx::shdfnd::ArraySizeHelper(_array)))
/*!
Sort two elements using operator<
On return x will be the smaller of the two
*/
template <class T>
PX_CUDA_CALLABLE PX_FORCE_INLINE void order(T& x, T& y)
{
if(y < x)
swap(x, y);
}
// most architectures can do predication on real comparisons, and on VMX, it matters
PX_CUDA_CALLABLE PX_FORCE_INLINE void order(PxReal& x, PxReal& y)
{
PxReal newX = PxMin(x, y);
PxReal newY = PxMax(x, y);
x = newX;
y = newY;
}
/*!
Sort two elements using operator< and also keep order
of any extra data
*/
template <class T, class E1>
PX_CUDA_CALLABLE PX_FORCE_INLINE void order(T& x, T& y, E1& xe1, E1& ye1)
{
if(y < x)
{
swap(x, y);
swap(xe1, ye1);
}
}
#if PX_GCC_FAMILY && !PX_EMSCRIPTEN && !PX_LINUX
__attribute__((noreturn))
#endif
PX_INLINE void debugBreak()
{
#if PX_WINDOWS || PX_XBOXONE
__debugbreak();
#elif PX_ANDROID
raise(SIGTRAP); // works better than __builtin_trap. Proper call stack and can be continued.
#elif PX_LINUX
#if (PX_X64 || PX_X64)
asm("int $3");
#else
raise(SIGTRAP);
#endif
#elif PX_GCC_FAMILY
__builtin_trap();
#else
PX_ASSERT(false);
#endif
}
bool checkValid(const float&);
bool checkValid(const PxVec3&);
bool checkValid(const PxQuat&);
bool checkValid(const PxMat33&);
bool checkValid(const PxTransform&);
bool checkValid(const char*);
// equivalent to std::max_element
template <typename T>
inline const T* maxElement(const T* first, const T* last)
{
const T* m = first;
for(const T* it = first + 1; it < last; ++it)
if(*m < *it)
m = it;
return m;
}
} // namespace shdfnd
} // namespace physx
#endif
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