diff options
| author | git perforce import user <a@b> | 2016-10-25 12:29:14 -0600 |
|---|---|---|
| committer | Sheikh Dawood Abdul Ajees <Sheikh Dawood Abdul Ajees> | 2016-10-25 18:56:37 -0500 |
| commit | 3dfe2108cfab31ba3ee5527e217d0d8e99a51162 (patch) | |
| tree | fa6485c169e50d7415a651bf838f5bcd0fd3bfbd /PxShared/src/foundation/include/PsFPU.h | |
| download | physx-3.4-3dfe2108cfab31ba3ee5527e217d0d8e99a51162.tar.xz physx-3.4-3dfe2108cfab31ba3ee5527e217d0d8e99a51162.zip | |
Initial commit:
PhysX 3.4.0 Update @ 21294896
APEX 1.4.0 Update @ 21275617
[CL 21300167]
Diffstat (limited to 'PxShared/src/foundation/include/PsFPU.h')
| -rw-r--r-- | PxShared/src/foundation/include/PsFPU.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/PxShared/src/foundation/include/PsFPU.h b/PxShared/src/foundation/include/PsFPU.h new file mode 100644 index 00000000..d8f0df75 --- /dev/null +++ b/PxShared/src/foundation/include/PsFPU.h @@ -0,0 +1,103 @@ +// 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) 2008-2016 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_PSFPU_H +#define PSFOUNDATION_PSFPU_H + +#include "Ps.h" +#include "PsIntrinsics.h" + +#define PX_IR(x) ((uint32_t&)(x)) +#define PX_SIR(x) ((int32_t&)(x)) +#define PX_FR(x) ((float&)(x)) + +// signed integer representation of a floating-point value. + +// Floating-point representation of a integer value. + +#define PX_SIGN_BITMASK 0x80000000 + +#define PX_FPU_GUARD shdfnd::FPUGuard scopedFpGuard; +#define PX_SIMD_GUARD shdfnd::SIMDGuard scopedFpGuard; + +#define PX_SUPPORT_GUARDS (PX_WINDOWS_FAMILY || PX_XBOXONE || (PX_LINUX && (PX_X86 || PX_X64)) || PX_PS4 || PX_OSX) + +namespace physx +{ +namespace shdfnd +{ +// sets the default SDK state for scalar and SIMD units +class PX_FOUNDATION_API FPUGuard +{ + public: + FPUGuard(); // set fpu control word for PhysX + ~FPUGuard(); // restore fpu control word + private: + uint32_t mControlWords[8]; +}; + +// sets default SDK state for simd unit only, lighter weight than FPUGuard +class SIMDGuard +{ + public: + PX_INLINE SIMDGuard(); // set simd control word for PhysX + PX_INLINE ~SIMDGuard(); // restore simd control word + private: +#if PX_SUPPORT_GUARDS + uint32_t mControlWord; +#endif +}; + +/** +\brief Enables floating point exceptions for the scalar and SIMD unit +*/ +PX_FOUNDATION_API void enableFPExceptions(); + +/** +\brief Disables floating point exceptions for the scalar and SIMD unit +*/ +PX_FOUNDATION_API void disableFPExceptions(); + +} // namespace shdfnd +} // namespace physx + +#if PX_WINDOWS_FAMILY || PX_XBOXONE +#include "windows/PsWindowsFPU.h" +#elif PX_LINUX || PX_PS4 || PX_OSX +#include "unix/PsUnixFPU.h" +#else +PX_INLINE physx::shdfnd::SIMDGuard::SIMDGuard() +{ +} +PX_INLINE physx::shdfnd::SIMDGuard::~SIMDGuard() +{ +} +#endif + +#endif // #ifndef PSFOUNDATION_PSFPU_H |