162 lines
7.3 KiB
C++
162 lines
7.3 KiB
C++
/*
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* Copyright 2011-2013 Intel Corporation
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* Modifications Copyright 2014, Blender Foundation.
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*
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* Licensed under the Apache License, Version 2.0(the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __UTIL_SSEB_H__
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#define __UTIL_SSEB_H__
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CCL_NAMESPACE_BEGIN
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#ifdef __KERNEL_SSE2__
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/*! 4-wide SSE bool type. */
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struct sseb
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{
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typedef sseb Mask; // mask type
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typedef ssei Int; // int type
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typedef ssef Float; // float type
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enum { size = 4 }; // number of SIMD elements
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union { __m128 m128; int32_t v[4]; }; // data
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////////////////////////////////////////////////////////////////////////////////
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/// Constructors, Assignment & Cast Operators
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////////////////////////////////////////////////////////////////////////////////
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__forceinline sseb ( ) {}
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__forceinline sseb ( const sseb& other ) { m128 = other.m128; }
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__forceinline sseb& operator=( const sseb& other ) { m128 = other.m128; return *this; }
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__forceinline sseb( const __m128 input ) : m128(input) {}
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__forceinline operator const __m128&( void ) const { return m128; }
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__forceinline operator const __m128i( void ) const { return _mm_castps_si128(m128); }
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__forceinline operator const __m128d( void ) const { return _mm_castps_pd(m128); }
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__forceinline sseb ( bool a )
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: m128(_mm_lookupmask_ps[(size_t(a) << 3) | (size_t(a) << 2) | (size_t(a) << 1) | size_t(a)]) {}
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__forceinline sseb ( bool a, bool b)
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: m128(_mm_lookupmask_ps[(size_t(b) << 3) | (size_t(a) << 2) | (size_t(b) << 1) | size_t(a)]) {}
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__forceinline sseb ( bool a, bool b, bool c, bool d)
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: m128(_mm_lookupmask_ps[(size_t(d) << 3) | (size_t(c) << 2) | (size_t(b) << 1) | size_t(a)]) {}
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__forceinline sseb(int mask) {
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assert(mask >= 0 && mask < 16);
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m128 = _mm_lookupmask_ps[mask];
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}
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////////////////////////////////////////////////////////////////////////////////
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/// Constants
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////////////////////////////////////////////////////////////////////////////////
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__forceinline sseb( FalseTy ) : m128(_mm_setzero_ps()) {}
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__forceinline sseb( TrueTy ) : m128(_mm_castsi128_ps(_mm_cmpeq_epi32(_mm_setzero_si128(), _mm_setzero_si128()))) {}
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////////////////////////////////////////////////////////////////////////////////
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/// Array Access
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////////////////////////////////////////////////////////////////////////////////
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__forceinline bool operator []( const size_t i ) const { assert(i < 4); return (_mm_movemask_ps(m128) >> i) & 1; }
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__forceinline int32_t& operator []( const size_t i ) { assert(i < 4); return v[i]; }
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};
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////////////////////////////////////////////////////////////////////////////////
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/// Unary Operators
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////////////////////////////////////////////////////////////////////////////////
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__forceinline const sseb operator !( const sseb& a ) { return _mm_xor_ps(a, sseb(True)); }
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////////////////////////////////////////////////////////////////////////////////
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/// Binary Operators
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////////////////////////////////////////////////////////////////////////////////
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__forceinline const sseb operator &( const sseb& a, const sseb& b ) { return _mm_and_ps(a, b); }
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__forceinline const sseb operator |( const sseb& a, const sseb& b ) { return _mm_or_ps (a, b); }
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__forceinline const sseb operator ^( const sseb& a, const sseb& b ) { return _mm_xor_ps(a, b); }
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////////////////////////////////////////////////////////////////////////////////
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/// Assignment Operators
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////////////////////////////////////////////////////////////////////////////////
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__forceinline const sseb operator &=( sseb& a, const sseb& b ) { return a = a & b; }
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__forceinline const sseb operator |=( sseb& a, const sseb& b ) { return a = a | b; }
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__forceinline const sseb operator ^=( sseb& a, const sseb& b ) { return a = a ^ b; }
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////////////////////////////////////////////////////////////////////////////////
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/// Comparison Operators + Select
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////////////////////////////////////////////////////////////////////////////////
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__forceinline const sseb operator !=( const sseb& a, const sseb& b ) { return _mm_xor_ps(a, b); }
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__forceinline const sseb operator ==( const sseb& a, const sseb& b ) { return _mm_castsi128_ps(_mm_cmpeq_epi32(a, b)); }
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__forceinline const sseb select( const sseb& m, const sseb& t, const sseb& f ) {
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#if defined(__KERNEL_SSE41__)
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return _mm_blendv_ps(f, t, m);
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#else
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return _mm_or_ps(_mm_and_ps(m, t), _mm_andnot_ps(m, f));
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#endif
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}
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////////////////////////////////////////////////////////////////////////////////
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/// Movement/Shifting/Shuffling Functions
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////////////////////////////////////////////////////////////////////////////////
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__forceinline const sseb unpacklo( const sseb& a, const sseb& b ) { return _mm_unpacklo_ps(a, b); }
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__forceinline const sseb unpackhi( const sseb& a, const sseb& b ) { return _mm_unpackhi_ps(a, b); }
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template<size_t i0, size_t i1, size_t i2, size_t i3> __forceinline const sseb shuffle( const sseb& a ) {
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return _mm_shuffle_epi32(a, _MM_SHUFFLE(i3, i2, i1, i0));
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}
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template<size_t i0, size_t i1, size_t i2, size_t i3> __forceinline const sseb shuffle( const sseb& a, const sseb& b ) {
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return _mm_shuffle_ps(a, b, _MM_SHUFFLE(i3, i2, i1, i0));
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}
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#if defined(__KERNEL_SSE3__)
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template<> __forceinline const sseb shuffle<0, 0, 2, 2>( const sseb& a ) { return _mm_moveldup_ps(a); }
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template<> __forceinline const sseb shuffle<1, 1, 3, 3>( const sseb& a ) { return _mm_movehdup_ps(a); }
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template<> __forceinline const sseb shuffle<0, 1, 0, 1>( const sseb& a ) { return _mm_castpd_ps(_mm_movedup_pd (a)); }
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#endif
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#if defined(__KERNEL_SSE41__)
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template<size_t dst, size_t src, size_t clr> __forceinline const sseb insert( const sseb& a, const sseb& b ) { return _mm_insert_ps(a, b, (dst << 4) | (src << 6) | clr); }
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template<size_t dst, size_t src> __forceinline const sseb insert( const sseb& a, const sseb& b ) { return insert<dst, src, 0>(a, b); }
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template<size_t dst> __forceinline const sseb insert( const sseb& a, const bool b ) { return insert<dst,0>(a, sseb(b)); }
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#endif
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////////////////////////////////////////////////////////////////////////////////
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/// Reduction Operations
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////////////////////////////////////////////////////////////////////////////////
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#if defined(__KERNEL_SSE41__)
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__forceinline size_t popcnt( const sseb& a ) { return __popcnt(_mm_movemask_ps(a)); }
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#else
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__forceinline size_t popcnt( const sseb& a ) { return bool(a[0])+bool(a[1])+bool(a[2])+bool(a[3]); }
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#endif
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__forceinline bool reduce_and( const sseb& a ) { return _mm_movemask_ps(a) == 0xf; }
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__forceinline bool reduce_or ( const sseb& a ) { return _mm_movemask_ps(a) != 0x0; }
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__forceinline bool all ( const sseb& b ) { return _mm_movemask_ps(b) == 0xf; }
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__forceinline bool any ( const sseb& b ) { return _mm_movemask_ps(b) != 0x0; }
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__forceinline bool none ( const sseb& b ) { return _mm_movemask_ps(b) == 0x0; }
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__forceinline size_t movemask( const sseb& a ) { return _mm_movemask_ps(a); }
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#endif
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CCL_NAMESPACE_END
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#endif
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