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Diffstat (limited to 'NvCloth/src/ps/windows/PsWindowsFPU.h')
| -rw-r--r-- | NvCloth/src/ps/windows/PsWindowsFPU.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/NvCloth/src/ps/windows/PsWindowsFPU.h b/NvCloth/src/ps/windows/PsWindowsFPU.h new file mode 100644 index 0000000..d85e531 --- /dev/null +++ b/NvCloth/src/ps/windows/PsWindowsFPU.h @@ -0,0 +1,51 @@ +// 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) 2008-2017 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_PSWINDOWSFPU_H +#define PSFOUNDATION_PSWINDOWSFPU_H + +PX_INLINE physx::shdfnd::SIMDGuard::SIMDGuard() +{ +#if !PX_ARM + mControlWord = _mm_getcsr(); + // set default (disable exceptions: _MM_MASK_MASK) and FTZ (_MM_FLUSH_ZERO_ON), DAZ (_MM_DENORMALS_ZERO_ON: (1<<6)) + _mm_setcsr(_MM_MASK_MASK | _MM_FLUSH_ZERO_ON | (1 << 6)); +#endif +} + +PX_INLINE physx::shdfnd::SIMDGuard::~SIMDGuard() +{ +#if !PX_ARM + // restore control word and clear any exception flags + // (setting exception state flags cause exceptions on the first following fp operation) + _mm_setcsr(mControlWord & ~_MM_EXCEPT_MASK); +#endif +} + +#endif // #ifndef PSFOUNDATION_PSWINDOWSFPU_H |