sse.h

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#pragma once
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
 
 
namespace Math
{
 
//------------------------------------------------------------------------------
__forceinline __m128 
fmadd(__m128 a, __m128 b, __m128 c)
{
#if N_USE_FMA    
    return _mm_fmadd_ps(a, b, c);
#else
    return _mm_add_ps(_mm_mul_ps(a, b), c);
#endif
}
 
//------------------------------------------------------------------------------
__forceinline __m128
less(__m128 a, __m128 b)
{
    return _mm_min_ps(_mm_cmplt_ps(a, b), _mm_set1_ps(1));
}
 
//------------------------------------------------------------------------------
__forceinline __m128
greater(__m128 a, __m128 b)
{
    return _mm_min_ps(_mm_cmpgt_ps(a, b), _mm_set1_ps(1));
}
 
//------------------------------------------------------------------------------
__forceinline __m128
recip(__m128 a)
{
    return _mm_div_ps(_mm_set1_ps(1), a);
}
 
//------------------------------------------------------------------------------
__forceinline __m128
mul(__m128 a, __m128 b)
{
    return _mm_mul_ps(a, b);
}
 
//------------------------------------------------------------------------------
__forceinline __m128
div(__m128 a, __m128 b)
{
    return _mm_div_ps(a, b);
}
 
//------------------------------------------------------------------------------
template<int x, int y, int z, int w>
__forceinline __m128
swizzle(__m128 v)
{
    return _mm_shuffle_ps(v, v, _MM_SHUFFLE(x, y, z, w));
}
 
} // namespace Math