722 lines
15 KiB
C++
722 lines
15 KiB
C++
/// @ref gtx_simd_vec4
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/// @file glm/gtx/simd_vec4.inl
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namespace glm{
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namespace detail{
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//////////////////////////////////////
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// Implicit basic constructors
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#if !GLM_HAS_DEFAULTED_FUNCTIONS || !defined(GLM_FORCE_NO_CTOR_INIT)
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GLM_FUNC_QUALIFIER fvec4SIMD::fvec4SIMD()
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# ifdef GLM_FORCE_NO_CTOR_INIT
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: Data(_mm_set_ps(0.0f, 0.0f, 0.0f, 0.0f))
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# endif
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{}
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#endif//!GLM_HAS_DEFAULTED_FUNCTIONS
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#if !GLM_HAS_DEFAULTED_FUNCTIONS
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GLM_FUNC_QUALIFIER fvec4SIMD::fvec4SIMD(fvec4SIMD const & v) :
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Data(v.Data)
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{}
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#endif//!GLM_HAS_DEFAULTED_FUNCTIONS
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GLM_FUNC_QUALIFIER fvec4SIMD::fvec4SIMD(__m128 const & Data) :
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Data(Data)
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{}
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GLM_FUNC_QUALIFIER fvec4SIMD::fvec4SIMD(vec4 const & v) :
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Data(_mm_set_ps(v.w, v.z, v.y, v.x))
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{}
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//////////////////////////////////////
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// Explicit basic constructors
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GLM_FUNC_QUALIFIER fvec4SIMD::fvec4SIMD(float const & s) :
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Data(_mm_set1_ps(s))
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{}
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GLM_FUNC_QUALIFIER fvec4SIMD::fvec4SIMD(float const & x, float const & y, float const & z, float const & w) :
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// Data(_mm_setr_ps(x, y, z, w))
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Data(_mm_set_ps(w, z, y, x))
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{}
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/*
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GLM_FUNC_QUALIFIER fvec4SIMD::fvec4SIMD(float const v[4]) :
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Data(_mm_load_ps(v))
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{}
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*/
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//////////////////////////////////////
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// Swizzle constructors
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//fvec4SIMD(ref4<float> const & r);
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//////////////////////////////////////
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// Conversion vector constructors
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GLM_FUNC_QUALIFIER fvec4SIMD::fvec4SIMD(vec2 const & v, float const & s1, float const & s2) :
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Data(_mm_set_ps(s2, s1, v.y, v.x))
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{}
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GLM_FUNC_QUALIFIER fvec4SIMD::fvec4SIMD(float const & s1, vec2 const & v, float const & s2) :
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Data(_mm_set_ps(s2, v.y, v.x, s1))
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{}
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GLM_FUNC_QUALIFIER fvec4SIMD::fvec4SIMD(float const & s1, float const & s2, vec2 const & v) :
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Data(_mm_set_ps(v.y, v.x, s2, s1))
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{}
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GLM_FUNC_QUALIFIER fvec4SIMD::fvec4SIMD(vec3 const & v, float const & s) :
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Data(_mm_set_ps(s, v.z, v.y, v.x))
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{}
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GLM_FUNC_QUALIFIER fvec4SIMD::fvec4SIMD(float const & s, vec3 const & v) :
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Data(_mm_set_ps(v.z, v.y, v.x, s))
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{}
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GLM_FUNC_QUALIFIER fvec4SIMD::fvec4SIMD(vec2 const & v1, vec2 const & v2) :
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Data(_mm_set_ps(v2.y, v2.x, v1.y, v1.x))
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{}
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//GLM_FUNC_QUALIFIER fvec4SIMD::fvec4SIMD(ivec4SIMD const & v) :
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// Data(_mm_cvtepi32_ps(v.Data))
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//{}
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//////////////////////////////////////
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// Unary arithmetic operators
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#if !GLM_HAS_DEFAULTED_FUNCTIONS
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GLM_FUNC_QUALIFIER fvec4SIMD& fvec4SIMD::operator=(fvec4SIMD const & v)
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{
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this->Data = v.Data;
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return *this;
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}
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#endif//!GLM_HAS_DEFAULTED_FUNCTIONS
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GLM_FUNC_QUALIFIER fvec4SIMD& fvec4SIMD::operator+=(float const & s)
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{
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this->Data = _mm_add_ps(Data, _mm_set_ps1(s));
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return *this;
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}
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GLM_FUNC_QUALIFIER fvec4SIMD& fvec4SIMD::operator+=(fvec4SIMD const & v)
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{
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this->Data = _mm_add_ps(this->Data , v.Data);
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return *this;
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}
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GLM_FUNC_QUALIFIER fvec4SIMD& fvec4SIMD::operator-=(float const & s)
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{
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this->Data = _mm_sub_ps(Data, _mm_set_ps1(s));
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return *this;
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}
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GLM_FUNC_QUALIFIER fvec4SIMD& fvec4SIMD::operator-=(fvec4SIMD const & v)
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{
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this->Data = _mm_sub_ps(this->Data , v.Data);
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return *this;
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}
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GLM_FUNC_QUALIFIER fvec4SIMD& fvec4SIMD::operator*=(float const & s)
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{
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this->Data = _mm_mul_ps(this->Data, _mm_set_ps1(s));
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return *this;
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}
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GLM_FUNC_QUALIFIER fvec4SIMD& fvec4SIMD::operator*=(fvec4SIMD const & v)
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{
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this->Data = _mm_mul_ps(this->Data , v.Data);
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return *this;
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}
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GLM_FUNC_QUALIFIER fvec4SIMD& fvec4SIMD::operator/=(float const & s)
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{
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this->Data = _mm_div_ps(Data, _mm_set1_ps(s));
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return *this;
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}
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GLM_FUNC_QUALIFIER fvec4SIMD& fvec4SIMD::operator/=(fvec4SIMD const & v)
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{
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this->Data = _mm_div_ps(this->Data , v.Data);
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return *this;
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}
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GLM_FUNC_QUALIFIER fvec4SIMD& fvec4SIMD::operator++()
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{
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this->Data = _mm_add_ps(this->Data , glm::detail::one);
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return *this;
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}
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GLM_FUNC_QUALIFIER fvec4SIMD& fvec4SIMD::operator--()
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{
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this->Data = _mm_sub_ps(this->Data, glm::detail::one);
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return *this;
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}
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//////////////////////////////////////
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// Swizzle operators
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template <comp X_, comp Y_, comp Z_, comp W_>
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GLM_FUNC_QUALIFIER fvec4SIMD fvec4SIMD::swizzle() const
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{
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__m128 Data = _mm_shuffle_ps(
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this->Data, this->Data,
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shuffle_mask<(W_ << 6) | (Z_ << 4) | (Y_ << 2) | (X_ << 0)>::value);
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return fvec4SIMD(Data);
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}
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template <comp X_, comp Y_, comp Z_, comp W_>
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GLM_FUNC_QUALIFIER fvec4SIMD& fvec4SIMD::swizzle()
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{
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this->Data = _mm_shuffle_ps(
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this->Data, this->Data,
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shuffle_mask<(W_ << 6) | (Z_ << 4) | (Y_ << 2) | (X_ << 0)>::value);
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return *this;
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}
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// operator+
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GLM_FUNC_QUALIFIER fvec4SIMD operator+ (fvec4SIMD const & v, float s)
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{
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return fvec4SIMD(_mm_add_ps(v.Data, _mm_set1_ps(s)));
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}
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GLM_FUNC_QUALIFIER fvec4SIMD operator+ (float s, fvec4SIMD const & v)
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{
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return fvec4SIMD(_mm_add_ps(_mm_set1_ps(s), v.Data));
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}
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GLM_FUNC_QUALIFIER fvec4SIMD operator+ (fvec4SIMD const & v1, fvec4SIMD const & v2)
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{
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return fvec4SIMD(_mm_add_ps(v1.Data, v2.Data));
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}
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//operator-
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GLM_FUNC_QUALIFIER fvec4SIMD operator- (fvec4SIMD const & v, float s)
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{
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return fvec4SIMD(_mm_sub_ps(v.Data, _mm_set1_ps(s)));
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}
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GLM_FUNC_QUALIFIER fvec4SIMD operator- (float s, fvec4SIMD const & v)
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{
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return fvec4SIMD(_mm_sub_ps(_mm_set1_ps(s), v.Data));
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}
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GLM_FUNC_QUALIFIER fvec4SIMD operator- (fvec4SIMD const & v1, fvec4SIMD const & v2)
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{
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return fvec4SIMD(_mm_sub_ps(v1.Data, v2.Data));
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}
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//operator*
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GLM_FUNC_QUALIFIER fvec4SIMD operator* (fvec4SIMD const & v, float s)
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{
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__m128 par0 = v.Data;
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__m128 par1 = _mm_set1_ps(s);
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return fvec4SIMD(_mm_mul_ps(par0, par1));
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}
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GLM_FUNC_QUALIFIER fvec4SIMD operator* (float s, fvec4SIMD const & v)
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{
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__m128 par0 = _mm_set1_ps(s);
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__m128 par1 = v.Data;
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return fvec4SIMD(_mm_mul_ps(par0, par1));
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}
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GLM_FUNC_QUALIFIER fvec4SIMD operator* (fvec4SIMD const & v1, fvec4SIMD const & v2)
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{
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return fvec4SIMD(_mm_mul_ps(v1.Data, v2.Data));
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}
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//operator/
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GLM_FUNC_QUALIFIER fvec4SIMD operator/ (fvec4SIMD const & v, float s)
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{
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__m128 par0 = v.Data;
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__m128 par1 = _mm_set1_ps(s);
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return fvec4SIMD(_mm_div_ps(par0, par1));
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}
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GLM_FUNC_QUALIFIER fvec4SIMD operator/ (float s, fvec4SIMD const & v)
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{
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__m128 par0 = _mm_set1_ps(s);
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__m128 par1 = v.Data;
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return fvec4SIMD(_mm_div_ps(par0, par1));
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}
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GLM_FUNC_QUALIFIER fvec4SIMD operator/ (fvec4SIMD const & v1, fvec4SIMD const & v2)
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{
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return fvec4SIMD(_mm_div_ps(v1.Data, v2.Data));
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}
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// Unary constant operators
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GLM_FUNC_QUALIFIER fvec4SIMD operator- (fvec4SIMD const & v)
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{
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return fvec4SIMD(_mm_sub_ps(_mm_setzero_ps(), v.Data));
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}
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GLM_FUNC_QUALIFIER fvec4SIMD operator++ (fvec4SIMD const & v, int)
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{
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return fvec4SIMD(_mm_add_ps(v.Data, glm::detail::one));
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}
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GLM_FUNC_QUALIFIER fvec4SIMD operator-- (fvec4SIMD const & v, int)
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{
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return fvec4SIMD(_mm_sub_ps(v.Data, glm::detail::one));
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}
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}//namespace detail
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GLM_FUNC_QUALIFIER vec4 vec4_cast
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(
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detail::fvec4SIMD const & x
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)
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{
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GLM_ALIGN(16) vec4 Result;
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_mm_store_ps(&Result[0], x.Data);
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return Result;
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}
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// Other possible implementation
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//float abs(float a)
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//{
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// return max(-a, a);
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//}
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GLM_FUNC_QUALIFIER detail::fvec4SIMD abs
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(
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detail::fvec4SIMD const & x
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)
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{
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return detail::sse_abs_ps(x.Data);
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}
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GLM_FUNC_QUALIFIER detail::fvec4SIMD sign
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(
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detail::fvec4SIMD const & x
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)
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{
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return detail::sse_sgn_ps(x.Data);
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}
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GLM_FUNC_QUALIFIER detail::fvec4SIMD floor
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(
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detail::fvec4SIMD const & x
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)
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{
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return detail::sse_flr_ps(x.Data);
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}
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GLM_FUNC_QUALIFIER detail::fvec4SIMD trunc
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(
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detail::fvec4SIMD const & x
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)
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{
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//return x < 0 ? -floor(-x) : floor(x);
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__m128 Flr0 = detail::sse_flr_ps(_mm_sub_ps(_mm_setzero_ps(), x.Data));
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__m128 Sub0 = _mm_sub_ps(Flr0, x.Data);
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__m128 Flr1 = detail::sse_flr_ps(x.Data);
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__m128 Cmp0 = _mm_cmplt_ps(x.Data, glm::detail::zero);
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__m128 Cmp1 = _mm_cmpnlt_ps(x.Data, glm::detail::zero);
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__m128 And0 = _mm_and_ps(Sub0, Cmp0);
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__m128 And1 = _mm_and_ps(Flr1, Cmp1);
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return _mm_or_ps(And0, And1);
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}
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GLM_FUNC_QUALIFIER detail::fvec4SIMD round
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(
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detail::fvec4SIMD const & x
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)
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{
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return detail::sse_rnd_ps(x.Data);
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}
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//GLM_FUNC_QUALIFIER detail::fvec4SIMD roundEven
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//(
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// detail::fvec4SIMD const & x
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//)
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//{
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//}
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GLM_FUNC_QUALIFIER detail::fvec4SIMD ceil
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(
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detail::fvec4SIMD const & x
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)
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{
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return detail::sse_ceil_ps(x.Data);
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}
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GLM_FUNC_QUALIFIER detail::fvec4SIMD fract
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(
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detail::fvec4SIMD const & x
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)
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{
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return detail::sse_frc_ps(x.Data);
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}
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GLM_FUNC_QUALIFIER detail::fvec4SIMD mod
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(
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detail::fvec4SIMD const & x,
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detail::fvec4SIMD const & y
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)
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{
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return detail::sse_mod_ps(x.Data, y.Data);
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}
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GLM_FUNC_QUALIFIER detail::fvec4SIMD mod
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(
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detail::fvec4SIMD const & x,
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float const & y
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)
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{
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return detail::sse_mod_ps(x.Data, _mm_set1_ps(y));
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}
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//GLM_FUNC_QUALIFIER detail::fvec4SIMD modf
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//(
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// detail::fvec4SIMD const & x,
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// detail::fvec4SIMD & i
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//)
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//{
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//}
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GLM_FUNC_QUALIFIER detail::fvec4SIMD min
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(
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detail::fvec4SIMD const & x,
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detail::fvec4SIMD const & y
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)
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{
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return _mm_min_ps(x.Data, y.Data);
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}
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GLM_FUNC_QUALIFIER detail::fvec4SIMD min
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(
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detail::fvec4SIMD const & x,
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float const & y
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)
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{
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return _mm_min_ps(x.Data, _mm_set1_ps(y));
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}
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GLM_FUNC_QUALIFIER detail::fvec4SIMD max
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(
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detail::fvec4SIMD const & x,
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detail::fvec4SIMD const & y
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)
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{
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return _mm_max_ps(x.Data, y.Data);
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}
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GLM_FUNC_QUALIFIER detail::fvec4SIMD max
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(
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detail::fvec4SIMD const & x,
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float const & y
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)
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{
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return _mm_max_ps(x.Data, _mm_set1_ps(y));
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}
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GLM_FUNC_QUALIFIER detail::fvec4SIMD clamp
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(
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detail::fvec4SIMD const & x,
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detail::fvec4SIMD const & minVal,
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detail::fvec4SIMD const & maxVal
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)
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{
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return detail::sse_clp_ps(x.Data, minVal.Data, maxVal.Data);
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}
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GLM_FUNC_QUALIFIER detail::fvec4SIMD clamp
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(
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detail::fvec4SIMD const & x,
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float const & minVal,
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float const & maxVal
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)
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{
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return detail::sse_clp_ps(x.Data, _mm_set1_ps(minVal), _mm_set1_ps(maxVal));
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}
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GLM_FUNC_QUALIFIER detail::fvec4SIMD mix
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(
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detail::fvec4SIMD const & x,
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detail::fvec4SIMD const & y,
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detail::fvec4SIMD const & a
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)
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{
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__m128 Sub0 = _mm_sub_ps(y.Data, x.Data);
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__m128 Mul0 = _mm_mul_ps(a.Data, Sub0);
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return _mm_add_ps(x.Data, Mul0);
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}
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GLM_FUNC_QUALIFIER detail::fvec4SIMD step
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(
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detail::fvec4SIMD const & edge,
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detail::fvec4SIMD const & x
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)
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{
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__m128 cmp0 = _mm_cmpngt_ps(x.Data, edge.Data);
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return _mm_max_ps(_mm_min_ps(cmp0, _mm_setzero_ps()), detail::one);
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}
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GLM_FUNC_QUALIFIER detail::fvec4SIMD step
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(
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float const & edge,
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detail::fvec4SIMD const & x
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)
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{
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__m128 cmp0 = _mm_cmpngt_ps(x.Data, _mm_set1_ps(edge));
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return _mm_max_ps(_mm_min_ps(cmp0, _mm_setzero_ps()), detail::one);
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}
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GLM_FUNC_QUALIFIER detail::fvec4SIMD smoothstep
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(
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detail::fvec4SIMD const & edge0,
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detail::fvec4SIMD const & edge1,
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detail::fvec4SIMD const & x
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)
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{
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return detail::sse_ssp_ps(edge0.Data, edge1.Data, x.Data);
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}
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GLM_FUNC_QUALIFIER detail::fvec4SIMD smoothstep
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(
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float const & edge0,
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float const & edge1,
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detail::fvec4SIMD const & x
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)
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{
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return detail::sse_ssp_ps(_mm_set1_ps(edge0), _mm_set1_ps(edge1), x.Data);
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}
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//GLM_FUNC_QUALIFIER bvec4 isnan(detail::fvec4SIMD const & x)
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//{
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//}
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//GLM_FUNC_QUALIFIER bvec4 isinf(detail::fvec4SIMD const & x)
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//{
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|
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|
//}
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|
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//GLM_FUNC_QUALIFIER detail::ivec4SIMD floatBitsToInt
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//(
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// detail::fvec4SIMD const & value
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|
//)
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|
//{
|
|
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|
//}
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|
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//GLM_FUNC_QUALIFIER detail::fvec4SIMD intBitsToFloat
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//(
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|
// detail::ivec4SIMD const & value
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|
//)
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|
//{
|
|
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|
//}
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|
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GLM_FUNC_QUALIFIER detail::fvec4SIMD fma
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|
(
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|
detail::fvec4SIMD const & a,
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|
detail::fvec4SIMD const & b,
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|
detail::fvec4SIMD const & c
|
|
)
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|
{
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|
return _mm_add_ps(_mm_mul_ps(a.Data, b.Data), c.Data);
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}
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|
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|
GLM_FUNC_QUALIFIER float length
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|
(
|
|
detail::fvec4SIMD const & x
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|
)
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|
{
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|
detail::fvec4SIMD dot0 = detail::sse_dot_ss(x.Data, x.Data);
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|
detail::fvec4SIMD sqt0 = sqrt(dot0);
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|
float Result = 0;
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|
_mm_store_ss(&Result, sqt0.Data);
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|
return Result;
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|
}
|
|
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|
GLM_FUNC_QUALIFIER float fastLength
|
|
(
|
|
detail::fvec4SIMD const & x
|
|
)
|
|
{
|
|
detail::fvec4SIMD dot0 = detail::sse_dot_ss(x.Data, x.Data);
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|
detail::fvec4SIMD sqt0 = fastSqrt(dot0);
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|
float Result = 0;
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|
_mm_store_ss(&Result, sqt0.Data);
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|
return Result;
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|
}
|
|
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|
GLM_FUNC_QUALIFIER float niceLength
|
|
(
|
|
detail::fvec4SIMD const & x
|
|
)
|
|
{
|
|
detail::fvec4SIMD dot0 = detail::sse_dot_ss(x.Data, x.Data);
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|
detail::fvec4SIMD sqt0 = niceSqrt(dot0);
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|
float Result = 0;
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|
_mm_store_ss(&Result, sqt0.Data);
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|
return Result;
|
|
}
|
|
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|
GLM_FUNC_QUALIFIER detail::fvec4SIMD length4
|
|
(
|
|
detail::fvec4SIMD const & x
|
|
)
|
|
{
|
|
return sqrt(dot4(x, x));
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER detail::fvec4SIMD fastLength4
|
|
(
|
|
detail::fvec4SIMD const & x
|
|
)
|
|
{
|
|
return fastSqrt(dot4(x, x));
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER detail::fvec4SIMD niceLength4
|
|
(
|
|
detail::fvec4SIMD const & x
|
|
)
|
|
{
|
|
return niceSqrt(dot4(x, x));
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER float distance
|
|
(
|
|
detail::fvec4SIMD const & p0,
|
|
detail::fvec4SIMD const & p1
|
|
)
|
|
{
|
|
float Result = 0;
|
|
_mm_store_ss(&Result, detail::sse_dst_ps(p0.Data, p1.Data));
|
|
return Result;
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER detail::fvec4SIMD distance4
|
|
(
|
|
detail::fvec4SIMD const & p0,
|
|
detail::fvec4SIMD const & p1
|
|
)
|
|
{
|
|
return detail::sse_dst_ps(p0.Data, p1.Data);
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER float dot
|
|
(
|
|
detail::fvec4SIMD const & x,
|
|
detail::fvec4SIMD const & y
|
|
)
|
|
{
|
|
float Result = 0;
|
|
_mm_store_ss(&Result, detail::sse_dot_ss(x.Data, y.Data));
|
|
return Result;
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER detail::fvec4SIMD dot4
|
|
(
|
|
detail::fvec4SIMD const & x,
|
|
detail::fvec4SIMD const & y
|
|
)
|
|
{
|
|
return detail::sse_dot_ps(x.Data, y.Data);
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER detail::fvec4SIMD cross
|
|
(
|
|
detail::fvec4SIMD const & x,
|
|
detail::fvec4SIMD const & y
|
|
)
|
|
{
|
|
return detail::sse_xpd_ps(x.Data, y.Data);
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER detail::fvec4SIMD normalize
|
|
(
|
|
detail::fvec4SIMD const & x
|
|
)
|
|
{
|
|
__m128 dot0 = detail::sse_dot_ps(x.Data, x.Data);
|
|
__m128 isr0 = inversesqrt(detail::fvec4SIMD(dot0)).Data;
|
|
__m128 mul0 = _mm_mul_ps(x.Data, isr0);
|
|
return mul0;
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER detail::fvec4SIMD fastNormalize
|
|
(
|
|
detail::fvec4SIMD const & x
|
|
)
|
|
{
|
|
__m128 dot0 = detail::sse_dot_ps(x.Data, x.Data);
|
|
__m128 isr0 = fastInversesqrt(dot0).Data;
|
|
__m128 mul0 = _mm_mul_ps(x.Data, isr0);
|
|
return mul0;
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER detail::fvec4SIMD faceforward
|
|
(
|
|
detail::fvec4SIMD const & N,
|
|
detail::fvec4SIMD const & I,
|
|
detail::fvec4SIMD const & Nref
|
|
)
|
|
{
|
|
return detail::sse_ffd_ps(N.Data, I.Data, Nref.Data);
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER detail::fvec4SIMD reflect
|
|
(
|
|
detail::fvec4SIMD const & I,
|
|
detail::fvec4SIMD const & N
|
|
)
|
|
{
|
|
return detail::sse_rfe_ps(I.Data, N.Data);
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER detail::fvec4SIMD refract
|
|
(
|
|
detail::fvec4SIMD const & I,
|
|
detail::fvec4SIMD const & N,
|
|
float const & eta
|
|
)
|
|
{
|
|
return detail::sse_rfa_ps(I.Data, N.Data, _mm_set1_ps(eta));
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER detail::fvec4SIMD sqrt(detail::fvec4SIMD const & x)
|
|
{
|
|
return _mm_mul_ps(inversesqrt(x).Data, x.Data);
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER detail::fvec4SIMD niceSqrt(detail::fvec4SIMD const & x)
|
|
{
|
|
return _mm_sqrt_ps(x.Data);
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER detail::fvec4SIMD fastSqrt(detail::fvec4SIMD const & x)
|
|
{
|
|
return _mm_mul_ps(fastInversesqrt(x.Data).Data, x.Data);
|
|
}
|
|
|
|
// SSE scalar reciprocal sqrt using rsqrt op, plus one Newton-Rhaphson iteration
|
|
// By Elan Ruskin, http://assemblyrequired.crashworks.org/
|
|
GLM_FUNC_QUALIFIER detail::fvec4SIMD inversesqrt(detail::fvec4SIMD const & x)
|
|
{
|
|
GLM_ALIGN(4) static const __m128 three = {3, 3, 3, 3}; // aligned consts for fast load
|
|
GLM_ALIGN(4) static const __m128 half = {0.5,0.5,0.5,0.5};
|
|
|
|
__m128 recip = _mm_rsqrt_ps(x.Data); // "estimate" opcode
|
|
__m128 halfrecip = _mm_mul_ps(half, recip);
|
|
__m128 threeminus_xrr = _mm_sub_ps(three, _mm_mul_ps(x.Data, _mm_mul_ps(recip, recip)));
|
|
return _mm_mul_ps(halfrecip, threeminus_xrr);
|
|
}
|
|
|
|
GLM_FUNC_QUALIFIER detail::fvec4SIMD fastInversesqrt(detail::fvec4SIMD const & x)
|
|
{
|
|
return _mm_rsqrt_ps(x.Data);
|
|
}
|
|
|
|
}//namespace glm
|