69 lines
2.7 KiB
C
69 lines
2.7 KiB
C
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions
|
|
// are met:
|
|
// * Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
// * Redistributions in binary form must reproduce the above copyright
|
|
// notice, this list of conditions and the following disclaimer in the
|
|
// documentation and/or other materials provided with the distribution.
|
|
// * Neither the name of NVIDIA CORPORATION nor the names of its
|
|
// contributors may be used to endorse or promote products derived
|
|
// from this software without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
|
|
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
|
|
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
|
|
// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
//
|
|
// Copyright (c) 2008-2019 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_PSUNIXFPU_H
|
|
#define PSFOUNDATION_PSUNIXFPU_H
|
|
|
|
#include "foundation/PxPreprocessor.h"
|
|
|
|
#if PX_LINUX || PX_PS4 || PX_OSX
|
|
|
|
#if PX_X86 || PX_X64
|
|
#if PX_EMSCRIPTEN
|
|
#include <emmintrin.h>
|
|
#endif
|
|
#include <xmmintrin.h>
|
|
#elif PX_NEON
|
|
#include <arm_neon.h>
|
|
#endif
|
|
|
|
PX_INLINE physx::shdfnd::SIMDGuard::SIMDGuard()
|
|
{
|
|
#if !PX_EMSCRIPTEN && (PX_X86 || PX_X64)
|
|
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_EMSCRIPTEN && (PX_X86 || PX_X64)
|
|
// restore control word and clear exception flags
|
|
// (setting exception state flags cause exceptions on the first following fp operation)
|
|
_mm_setcsr(mControlWord & ~_MM_EXCEPT_MASK);
|
|
#endif
|
|
}
|
|
|
|
#else
|
|
#error No SIMD implementation for this unix platform.
|
|
#endif // PX_LINUX || PX_PS4 || PX_OSX
|
|
|
|
#endif // #ifndef PSFOUNDATION_PSUNIXFPU_H
|