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27// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
28// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
29
30#ifndef PSFOUNDATION_PSFPU_H
31#define PSFOUNDATION_PSFPU_H
32
33#include "Ps.h"
34#include "PsIntrinsics.h"
35
36#define PX_IR(x) ((uint32_t&)(x)) // integer representation of a floating-point value.
37#define PX_SIR(x) ((int32_t&)(x)) // signed integer representation of a floating-point value.
38#define PX_FR(x) ((float&)(x)) // floating-point representation of a integer value.
39
40#define PX_FPU_GUARD shdfnd::FPUGuard scopedFpGuard;
41#define PX_SIMD_GUARD shdfnd::SIMDGuard scopedFpGuard;
42
43namespace physx
44{
45namespace shdfnd
46{
47// sets the default SDK state for scalar and SIMD units
48class PX_FOUNDATION_API FPUGuard
49{
50 public:
51 FPUGuard(); // set fpu control word for PhysX
52 ~FPUGuard(); // restore fpu control word
53 private:
54 uint32_t mControlWords[8];
55};
56
57// sets default SDK state for simd unit only, lighter weight than FPUGuard
58class SIMDGuard
59{
60 public:
61 PX_INLINE SIMDGuard(); // set simd control word for PhysX
62 PX_INLINE ~SIMDGuard(); // restore simd control word
63 private:
64 uint32_t mControlWord;
65};
66
67/**
68\brief Enables floating point exceptions for the scalar and SIMD unit
69*/
70PX_FOUNDATION_API void enableFPExceptions();
71
72/**
73\brief Disables floating point exceptions for the scalar and SIMD unit
74*/
75PX_FOUNDATION_API void disableFPExceptions();
76
77} // namespace shdfnd
78} // namespace physx
79
80#if PX_WINDOWS_FAMILY || PX_XBOXONE || PX_XBOX_SERIES_X
81#include "windows/PsWindowsFPU.h"
82#elif (PX_LINUX && PX_SSE2) || PX_PS4 || PX_OSX
83#include "unix/PsUnixFPU.h"
84#else
85PX_INLINE physx::shdfnd::SIMDGuard::SIMDGuard()
86{
87}
88PX_INLINE physx::shdfnd::SIMDGuard::~SIMDGuard()
89{
90}
91#endif
92
93#endif // #ifndef PSFOUNDATION_PSFPU_H
94

source code of qtquick3dphysics/src/3rdparty/PhysX/source/foundation/include/PsFPU.h