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/*=====================================================================*
* Copyright (C) 2011 Paul Mineiro *
* All rights reserved. *
* *
* 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 Paul Mineiro nor the names *
* of other 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 AND *
* CONTRIBUTORS "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. *
* *
* Contact: Paul Mineiro <paul@mineiro.com> *
*=====================================================================*/
#ifndef __SSE_H_
#define __SSE_H_
#ifdef __SSE2__
#include <emmintrin.h>
#ifdef __cplusplus
namespace {
#endif // __cplusplus
typedef __m128 v4sf;
typedef __m128i v4si;
#define v4si_to_v4sf _mm_cvtepi32_ps
#define v4sf_to_v4si _mm_cvttps_epi32
#if _MSC_VER && !__INTEL_COMPILER
template <class T>
__forceinline char GetChar(T value, size_t index) { return ((char*)&value)[index]; }
#define AS_4CHARS(a) \
GetChar(int32_t(a), 0), GetChar(int32_t(a), 1), \
GetChar(int32_t(a), 2), GetChar(int32_t(a), 3)
#define _MM_SETR_EPI32(a0, a1, a2, a3) \
{ AS_4CHARS(a0), AS_4CHARS(a1), AS_4CHARS(a2), AS_4CHARS(a3) }
#define v4sfl(x) (const v4sf { (x), (x), (x), (x) })
#define v4sil(x) (const v4si _MM_SETR_EPI32(x, x, x, x))
__forceinline const v4sf operator+(const v4sf& a, const v4sf& b) { return _mm_add_ps(a,b); }
__forceinline const v4sf operator-(const v4sf& a, const v4sf& b) { return _mm_sub_ps(a,b); }
__forceinline const v4sf operator/(const v4sf& a, const v4sf& b) { return _mm_div_ps(a,b); }
__forceinline const v4sf operator*(const v4sf& a, const v4sf& b) { return _mm_mul_ps(a,b); }
__forceinline const v4sf operator+(const v4sf& a) { return a; }
__forceinline const v4sf operator-(const v4sf& a) { return _mm_xor_ps(a, _mm_castsi128_ps(_mm_set1_epi32(0x80000000))); }
__forceinline const v4sf operator&(const v4sf& a, const v4sf& b) { return _mm_and_ps(a,b); }
__forceinline const v4sf operator|(const v4sf& a, const v4sf& b) { return _mm_or_ps(a,b); }
__forceinline const v4sf operator^(const v4sf& a, const v4sf& b) { return _mm_xor_ps(a,b); }
__forceinline const v4si operator&(const v4si& a, const v4si& b) { return _mm_and_si128(a,b); }
__forceinline const v4si operator|(const v4si& a, const v4si& b) { return _mm_or_si128(a,b); }
__forceinline const v4si operator^(const v4si& a, const v4si& b) { return _mm_xor_si128(a,b); }
__forceinline const v4sf operator+=(v4sf& a, const v4sf& b) { return a = a + b; }
__forceinline const v4sf operator-=(v4sf& a, const v4sf& b) { return a = a - b; }
__forceinline const v4sf operator*=(v4sf& a, const v4sf& b) { return a = a * b; }
__forceinline const v4sf operator/=(v4sf& a, const v4sf& b) { return a = a / b; }
__forceinline const v4si operator|=(v4si& a, const v4si& b) { return a = a | b; }
__forceinline const v4si operator&=(v4si& a, const v4si& b) { return a = a & b; }
__forceinline const v4si operator^=(v4si& a, const v4si& b) { return a = a ^ b; }
#else
#define v4sfl(x) ((const v4sf) { (x), (x), (x), (x) })
#define v2dil(x) ((const v4si) { (x), (x) })
#define v4sil(x) v2dil((((long long) (x)) << 32) | (long long) (x))
#endif
typedef union { v4sf f; float array[4]; } v4sfindexer;
#define v4sf_index(_findx, _findi) \
({ \
v4sfindexer _findvx = { _findx } ; \
_findvx.array[_findi]; \
})
typedef union { v4si i; int array[4]; } v4siindexer;
#define v4si_index(_iindx, _iindi) \
({ \
v4siindexer _iindvx = { _iindx } ; \
_iindvx.array[_iindi]; \
})
typedef union { v4sf f; v4si i; } v4sfv4sipun;
#if _MSC_VER && !__INTEL_COMPILER
#define v4sf_fabs(x) _mm_and_ps(x, _mm_castsi128_ps(_mm_set1_epi32(0x7fffffff)))
#else
#define v4sf_fabs(x) \
({ \
v4sfv4sipun vx; \
vx.f = x; \
vx.i &= v4sil (0x7FFFFFFF); \
vx.f; \
})
#endif
#ifdef __cplusplus
} // end namespace
#endif // __cplusplus
#endif // __SSE2__
#endif // __SSE_H_
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