Initial commit:

PhysX 3.4.0 Update @ 21294896
APEX 1.4.0 Update @ 21275617

[CL 21300167]

1 files changed, 92 insertions, 0 deletions

diff --git a/PhysX_3.4/Source/LowLevelCloth/src/sse2/SwCollisionHelpers.h b/PhysX_3.4/Source/LowLevelCloth/src/sse2/SwCollisionHelpers.h
new file mode 100644
index 00000000..85e33c3c
--- /dev/null
+++ b/PhysX_3.4/Source/LowLevelCloth/src/sse2/SwCollisionHelpers.h
@@ -0,0 +1,92 @@
+// 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.
+
+#pragma once
+
+#if PX_GCC_FAMILY
+#include <xmmintrin.h> // _BitScanForward
+#else
+#pragma warning(push)
+#pragma warning(disable : 4668) //'symbol'  is not defined as a preprocessor macro, replacing with '0' for 'directives'
+#pragma warning(disable : 4987) // nonstandard extension used: 'throw (...)'
+#include <intrin.h>             // _BitScanForward
+#pragma warning(pop)
+#endif
+
+namespace physx
+{
+namespace cloth
+{
+
+uint32_t findBitSet(uint32_t mask)
+{
+#if defined(_MSC_VER)
+	unsigned long result;
+	_BitScanForward(&result, unsigned long(mask));
+	return result;
+#else
+	return __builtin_ffs(mask) - 1;
+#endif
+}
+
+Simd4i intFloor(const Simd4f& v)
+{
+	Simd4i i = _mm_cvttps_epi32(v);
+	return _mm_sub_epi32(i, _mm_srli_epi32(simd4i(v), 31));
+}
+
+Simd4i horizontalOr(const Simd4i& mask)
+{
+	Simd4i tmp = mask | _mm_shuffle_epi32(mask, 0xb1); // w z y x -> z w x y
+	return tmp | _mm_shuffle_epi32(tmp, 0x4e);         // w z y x -> y x w z
+}
+
+Gather<Simd4i>::Gather(const Simd4i& index)
+{
+	mSelectQ = _mm_srai_epi32(index << 29, 31);
+	mSelectD = _mm_srai_epi32(index << 30, 31);
+	mSelectW = _mm_srai_epi32(index << 31, 31);
+	mOutOfRange = (index ^ sIntSignBit) > sSignedMask;
+}
+
+Simd4i Gather<Simd4i>::operator()(const Simd4i* ptr) const
+{
+	// more efficient with _mm_shuffle_epi8 (SSSE3)
+	Simd4i lo = ptr[0], hi = ptr[1];
+	Simd4i m01 = select(mSelectW, splat<1>(lo), splat<0>(lo));
+	Simd4i m23 = select(mSelectW, splat<3>(lo), splat<2>(lo));
+	Simd4i m45 = select(mSelectW, splat<1>(hi), splat<0>(hi));
+	Simd4i m67 = select(mSelectW, splat<3>(hi), splat<2>(hi));
+	Simd4i m0123 = select(mSelectD, m23, m01);
+	Simd4i m4567 = select(mSelectD, m67, m45);
+	return select(mSelectQ, m4567, m0123) & ~mOutOfRange;
+}
+
+} // namespace cloth
+} // namespace physx