Revision control
++ // Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
++ // Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
++ // SPDX-FileCopyrightText: Copyright (c) 2008-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
++ // SPDX-License-Identifier: Apache-2.0
++
++ #ifndef PXFOUNDATION_PXUNIXINTRINSICS_H
++ #define PXFOUNDATION_PXUNIXINTRINSICS_H
++
++ #include "foundation/PxAssert.h"
++
++ #if !(PX_LINUX || PX_APPLE_FAMILY)
++ #error "This file should only be included by Unix builds!!"
++ #endif
++
++ #if PX_LINUX && !PX_CUDA_COMPILER && !PX_EMSCRIPTEN
++ // Linux and CUDA compilation does not work with std::isfnite, as it is not marked as CUDA callable
++ #include <cmath>
++ #ifndef isfinite
++ using std::isfinite;
++ #endif
++ #endif
++
++ #include <math.h>
++ #include <float.h>
++
++ #if !PX_DOXYGEN
++ namespace physx
++ {
++ #endif
++
++ namespace intrinsics
++ {
++ //! \brief platform-specific absolute value
++ PX_CUDA_CALLABLE PX_FORCE_INLINE float abs(float a)
++ {
++ return ::fabsf(a);
++ }
++
++ //! \brief platform-specific select float
++ PX_CUDA_CALLABLE PX_FORCE_INLINE float fsel(float a, float b, float c)
++ {
++ return (a >= 0.0f) ? b : c;
++ }
++
++ //! \brief platform-specific sign
++ PX_CUDA_CALLABLE PX_FORCE_INLINE float sign(float a)
++ {
++ return (a >= 0.0f) ? 1.0f : -1.0f;
++ }
++
++ //! \brief platform-specific reciprocal
++ PX_CUDA_CALLABLE PX_FORCE_INLINE float recip(float a)
++ {
++ return 1.0f / a;
++ }
++
++ //! \brief platform-specific reciprocal estimate
++ PX_CUDA_CALLABLE PX_FORCE_INLINE float recipFast(float a)
++ {
++ return 1.0f / a;
++ }
++
++ //! \brief platform-specific square root
++ PX_CUDA_CALLABLE PX_FORCE_INLINE float sqrt(float a)
++ {
++ return ::sqrtf(a);
++ }
++
++ //! \brief platform-specific reciprocal square root
++ PX_CUDA_CALLABLE PX_FORCE_INLINE float recipSqrt(float a)
++ {
++ return 1.0f / ::sqrtf(a);
++ }
++
++ PX_CUDA_CALLABLE PX_FORCE_INLINE float recipSqrtFast(float a)
++ {
++ return 1.0f / ::sqrtf(a);
++ }
++
++ //! \brief platform-specific sine
++ PX_CUDA_CALLABLE PX_FORCE_INLINE float sin(float a)
++ {
++ return ::sinf(a);
++ }
++
++ //! \brief platform-specific cosine
++ PX_CUDA_CALLABLE PX_FORCE_INLINE float cos(float a)
++ {
++ return ::cosf(a);
++ }
++
++ //! \brief platform-specific minimum
++ PX_CUDA_CALLABLE PX_FORCE_INLINE float selectMin(float a, float b)
++ {
++ return a < b ? a : b;
++ }
++
++ //! \brief platform-specific maximum
++ PX_CUDA_CALLABLE PX_FORCE_INLINE float selectMax(float a, float b)
++ {
++ return a > b ? a : b;
++ }
++
++ //! \brief platform-specific finiteness check (not INF or NAN)
++ PX_CUDA_CALLABLE PX_FORCE_INLINE bool isFinite(float a)
++ {
++ //std::isfinite not recommended as of Feb 2017, since it doesn't work with g++/clang's floating point optimization.
++ union localU { PxU32 i; float f; } floatUnion;
++ floatUnion.f = a;
++ return !((floatUnion.i & 0x7fffffff) >= 0x7f800000);
++ }
++
++ //! \brief platform-specific finiteness check (not INF or NAN)
++ PX_CUDA_CALLABLE PX_FORCE_INLINE bool isFinite(double a)
++ {
++ return !!isfinite(a);
++ }
++
++ /*!
++ Sets \c count bytes starting at \c dst to zero.
++ */
++ PX_FORCE_INLINE void* memZero(void* dest, size_t count)
++ {
++ return memset(dest, 0, count);
++ }
++
++ /*!
++ Sets \c count bytes starting at \c dst to \c c.
++ */
++ PX_FORCE_INLINE void* memSet(void* dest, int32_t c, size_t count)
++ {
++ return memset(dest, c, count);
++ }
++
++ /*!
++ Copies \c count bytes from \c src to \c dst. User memMove if regions overlap.
++ */
++ PX_FORCE_INLINE void* memCopy(void* dest, const void* src, size_t count)
++ {
++ return memcpy(dest, src, count);
++ }
++
++ /*!
++ Copies \c count bytes from \c src to \c dst. Supports overlapping regions.
++ */
++ PX_FORCE_INLINE void* memMove(void* dest, const void* src, size_t count)
++ {
++ return memmove(dest, src, count);
++ }
++
++ } // namespace intrinsics
++ #if !PX_DOXYGEN
++ } // namespace physx
++ #endif
++
++ #endif