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Diffstat (limited to 'indra/llmath/llsimdtypes.inl')
| -rw-r--r-- | indra/llmath/llsimdtypes.inl | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/indra/llmath/llsimdtypes.inl b/indra/llmath/llsimdtypes.inl new file mode 100644 index 0000000000..712239e425 --- /dev/null +++ b/indra/llmath/llsimdtypes.inl @@ -0,0 +1,157 @@ +/** + * @file llsimdtypes.inl + * @brief Inlined definitions of basic SIMD math related types + * + * $LicenseInfo:firstyear=2010&license=viewerlgpl$ + * Second Life Viewer Source Code + * Copyright (C) 2010, Linden Research, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License only. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA + * $/LicenseInfo$ + */ + + + + +////////////////// +// LLSimdScalar +////////////////// + +inline LLSimdScalar operator+(const LLSimdScalar& a, const LLSimdScalar& b) +{ + LLSimdScalar t(a); + t += b; + return t; +} + +inline LLSimdScalar operator-(const LLSimdScalar& a, const LLSimdScalar& b) +{ + LLSimdScalar t(a); + t -= b; + return t; +} + +inline LLSimdScalar operator*(const LLSimdScalar& a, const LLSimdScalar& b) +{ + LLSimdScalar t(a); + t *= b; + return t; +} + +inline LLSimdScalar operator/(const LLSimdScalar& a, const LLSimdScalar& b) +{ + LLSimdScalar t(a); + t /= b; + return t; +} + +inline LLSimdScalar operator-(const LLSimdScalar& a) +{ + static LL_ALIGN_16(const U32 signMask[4]) = {0x80000000, 0x80000000, 0x80000000, 0x80000000 }; + return _mm_xor_ps(*reinterpret_cast<const LLQuad*>(signMask), a); +} + +inline LLBool32 operator==(const LLSimdScalar& a, const LLSimdScalar& b) +{ + return _mm_comieq_ss(a, b); +} + +inline LLBool32 operator!=(const LLSimdScalar& a, const LLSimdScalar& b) +{ + return _mm_comineq_ss(a, b); +} + +inline LLBool32 operator<(const LLSimdScalar& a, const LLSimdScalar& b) +{ + return _mm_comilt_ss(a, b); +} + +inline LLBool32 operator<=(const LLSimdScalar& a, const LLSimdScalar& b) +{ + return _mm_comile_ss(a, b); +} + +inline LLBool32 operator>(const LLSimdScalar& a, const LLSimdScalar& b) +{ + return _mm_comigt_ss(a, b); +} + +inline LLBool32 operator>=(const LLSimdScalar& a, const LLSimdScalar& b) +{ + return _mm_comige_ss(a, b); +} + +inline LLBool32 LLSimdScalar::isApproximatelyEqual(const LLSimdScalar& rhs, F32 tolerance /* = F_APPROXIMATELY_ZERO */) const +{ + const LLSimdScalar tol( tolerance ); + const LLSimdScalar diff = _mm_sub_ss( mQ, rhs.mQ ); + const LLSimdScalar absDiff = diff.getAbs(); + return absDiff <= tol; +} + +inline void LLSimdScalar::setMax( const LLSimdScalar& a, const LLSimdScalar& b ) +{ + mQ = _mm_max_ss( a, b ); +} + +inline void LLSimdScalar::setMin( const LLSimdScalar& a, const LLSimdScalar& b ) +{ + mQ = _mm_min_ss( a, b ); +} + +inline LLSimdScalar& LLSimdScalar::operator=(F32 rhs) +{ + mQ = _mm_set_ss(rhs); + return *this; +} + +inline LLSimdScalar& LLSimdScalar::operator+=(const LLSimdScalar& rhs) +{ + mQ = _mm_add_ss( mQ, rhs ); + return *this; +} + +inline LLSimdScalar& LLSimdScalar::operator-=(const LLSimdScalar& rhs) +{ + mQ = _mm_sub_ss( mQ, rhs ); + return *this; +} + +inline LLSimdScalar& LLSimdScalar::operator*=(const LLSimdScalar& rhs) +{ + mQ = _mm_mul_ss( mQ, rhs ); + return *this; +} + +inline LLSimdScalar& LLSimdScalar::operator/=(const LLSimdScalar& rhs) +{ + mQ = _mm_div_ss( mQ, rhs ); + return *this; +} + +inline LLSimdScalar LLSimdScalar::getAbs() const +{ + static const LL_ALIGN_16(U32 F_ABS_MASK_4A[4]) = { 0x7FFFFFFF, 0x7FFFFFFF, 0x7FFFFFFF, 0x7FFFFFFF }; + return _mm_and_ps( mQ, *reinterpret_cast<const LLQuad*>(F_ABS_MASK_4A)); +} + +inline F32 LLSimdScalar::getF32() const +{ + F32 ret; + _mm_store_ss(&ret, mQ); + return ret; +} |