feat(physics): wire physx sdk into build

engine/third_party/physx/source/foundation/windows/FdWindowsFPU.cpp

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+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
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+//  * Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
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+//  * 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) 2008-2025 NVIDIA Corporation. All rights reserved.
+// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
+// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
+
+#include "foundation/PxFPU.h"
+#include "float.h"
+#include "foundation/PxIntrinsics.h"
+
+#if PX_X64 || PX_ARM || PX_A64
+#define _MCW_ALL _MCW_DN | _MCW_EM | _MCW_RC
+#else
+#define _MCW_ALL _MCW_DN | _MCW_EM | _MCW_IC | _MCW_RC | _MCW_PC
+#endif
+
+physx::PxFPUGuard::PxFPUGuard()
+{
+// default plus FTZ and DAZ
+#if PX_X64 || PX_ARM || PX_A64
+	// query current control word state
+	_controlfp_s(mControlWords, 0, 0);
+
+	// set both x87 and sse units to default + DAZ
+	unsigned int cw;
+	_controlfp_s(&cw, _CW_DEFAULT | _DN_FLUSH, _MCW_ALL);
+#else
+	// query current control word state
+	__control87_2(0, 0, mControlWords, mControlWords + 1);
+
+	// set both x87 and sse units to default + DAZ
+	unsigned int x87, sse;
+	__control87_2(_CW_DEFAULT | _DN_FLUSH, _MCW_ALL, &x87, &sse);
+#endif
+}
+
+physx::PxFPUGuard::~PxFPUGuard()
+{
+	_clearfp();
+
+#if PX_X64 || PX_ARM || PX_A64
+	// reset FP state
+	unsigned int cw;
+	_controlfp_s(&cw, *mControlWords, _MCW_ALL);
+#else
+
+	// reset FP state
+	unsigned int x87, sse;
+	__control87_2(mControlWords[0], _MCW_ALL, &x87, 0);
+	__control87_2(mControlWords[1], _MCW_ALL, 0, &sse);
+#endif
+}
+
+void physx::PxEnableFPExceptions()
+{
+	// clear any pending exceptions
+	_clearfp();
+
+	// enable all fp exceptions except inexact and underflow (common, benign)
+	_controlfp_s(NULL, uint32_t(~_MCW_EM) | _EM_INEXACT | _EM_UNDERFLOW, _MCW_EM);
+}
+
+void physx::PxDisableFPExceptions()
+{
+	_controlfp_s(NULL, _MCW_EM, _MCW_EM);
+}