PxWindowsMathIntrinsics.h

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// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
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#ifndef PX_WINDOWS_MATH_INTRINSICS_H
#define PX_WINDOWS_MATH_INTRINSICS_H
 
#include "foundation/Px.h"
#include "foundation/PxAssert.h"
 
#if !PX_WINDOWS_FAMILY
#error "This file should only be included by Windows builds!!"
#endif
 
#include <math.h>
#include <float.h>
 
#if !PX_DOXYGEN
namespace physx
{
namespace intrinsics
{
#endif
 
PX_CUDA_CALLABLE PX_FORCE_INLINE float abs(float a)
{
    return ::fabsf(a);
}
 
PX_CUDA_CALLABLE PX_FORCE_INLINE float fsel(float a, float b, float c)
{
    return (a >= 0.0f) ? b : c;
}
 
PX_CUDA_CALLABLE PX_FORCE_INLINE float sign(float a)
{
    return (a >= 0.0f) ? 1.0f : -1.0f;
}
 
PX_CUDA_CALLABLE PX_FORCE_INLINE float recip(float a)
{
    return 1.0f / a;
}
 
PX_CUDA_CALLABLE PX_FORCE_INLINE float recipFast(float a)
{
    return 1.0f / a;
}
 
PX_CUDA_CALLABLE PX_FORCE_INLINE float sqrt(float a)
{
    return ::sqrtf(a);
}
 
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);
}
 
PX_CUDA_CALLABLE PX_FORCE_INLINE float sin(float a)
{
    return ::sinf(a);
}
 
PX_CUDA_CALLABLE PX_FORCE_INLINE float cos(float a)
{
    return ::cosf(a);
}
 
PX_CUDA_CALLABLE PX_FORCE_INLINE float selectMin(float a, float b)
{
    return a < b ? a : b;
}
 
PX_CUDA_CALLABLE PX_FORCE_INLINE float selectMax(float a, float b)
{
    return a > b ? a : b;
}
 
PX_CUDA_CALLABLE PX_FORCE_INLINE bool isFinite(float a)
{
#ifdef __CUDACC__
    return !!isfinite(a);
#else
    return (0 == ((_FPCLASS_SNAN | _FPCLASS_QNAN | _FPCLASS_NINF | _FPCLASS_PINF) & _fpclass(a)));
#endif
}
 
PX_CUDA_CALLABLE PX_FORCE_INLINE bool isFinite(double a)
{
#ifdef __CUDACC__
    return !!isfinite(a);
#else
    return (0 == ((_FPCLASS_SNAN | _FPCLASS_QNAN | _FPCLASS_NINF | _FPCLASS_PINF) & _fpclass(a)));
#endif
}
 
PX_FORCE_INLINE void* memZero(void* dest, uint32_t count)
{
    return memset(dest, 0, count);
}
 
PX_FORCE_INLINE void* memSet(void* dest, int32_t c, uint32_t count)
{
    return memset(dest, c, count);
}
 
PX_FORCE_INLINE void* memCopy(void* dest, const void* src, uint32_t count)
{
    return memcpy(dest, src, count);
}
 
PX_FORCE_INLINE void* memMove(void* dest, const void* src, uint32_t count)
{
    return memmove(dest, src, count);
}
 
#if !PX_DOXYGEN
} // namespace intrinsics
} // namespace physx
#endif
 
#endif