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Diffstat (limited to 'external/include/glm/gtx/simd_vec4.hpp')
| -rw-r--r-- | external/include/glm/gtx/simd_vec4.hpp | 546 |
1 files changed, 546 insertions, 0 deletions
diff --git a/external/include/glm/gtx/simd_vec4.hpp b/external/include/glm/gtx/simd_vec4.hpp new file mode 100644 index 0000000..cde540b --- /dev/null +++ b/external/include/glm/gtx/simd_vec4.hpp @@ -0,0 +1,546 @@ +/// @ref gtx_simd_vec4 +/// @file glm/gtx/simd_vec4.hpp +/// +/// @see core (dependence) +/// +/// @defgroup gtx_simd_vec4 GLM_GTX_simd_vec4 +/// @ingroup gtx +/// +/// @brief SIMD implementation of vec4 type. +/// +/// <glm/gtx/simd_vec4.hpp> need to be included to use these functionalities. + +#pragma once + +// Dependency: +#include "../glm.hpp" + +#if(GLM_ARCH != GLM_ARCH_PURE) + +#if(GLM_ARCH & GLM_ARCH_SSE2_BIT) +# include "../detail/intrinsic_common.hpp" +# include "../detail/intrinsic_geometric.hpp" +# include "../detail/intrinsic_integer.hpp" +#else +# error "GLM: GLM_GTX_simd_vec4 requires compiler support of SSE2 through intrinsics" +#endif + +#if GLM_MESSAGES == GLM_MESSAGES_ENABLED && !defined(GLM_EXT_INCLUDED) +# pragma message("GLM: GLM_GTX_simd_vec4 extension included") +# pragma message("GLM: GLM_GTX_simd_vec4 extension is deprecated and will be removed in GLM 0.9.9. Use *vec4 types instead and use compiler SIMD arguments.") +#endif + + +// Warning silencer for nameless struct/union. +#if (GLM_COMPILER & GLM_COMPILER_VC) +# pragma warning(push) +# pragma warning(disable:4201) // warning C4201: nonstandard extension used : nameless struct/union +#endif + +namespace glm +{ + enum comp + { + X = 0, + R = 0, + S = 0, + Y = 1, + G = 1, + T = 1, + Z = 2, + B = 2, + P = 2, + W = 3, + A = 3, + Q = 3 + }; + +}//namespace glm + +namespace glm{ +namespace detail +{ + /// 4-dimensional vector implemented using SIMD SEE intrinsics. + /// \ingroup gtx_simd_vec4 + GLM_ALIGNED_STRUCT(16) fvec4SIMD + { + typedef float value_type; + typedef std::size_t size_type; + + typedef fvec4SIMD type; + typedef tvec4<float, defaultp> pure_type; + typedef tvec4<bool, highp> bool_type; + +#ifdef GLM_SIMD_ENABLE_XYZW_UNION + union + { + __m128 Data; + struct {float x, y, z, w;}; + }; +#else + __m128 Data; +#endif + + ////////////////////////////////////// + // Implicit basic constructors + + fvec4SIMD() GLM_DEFAULT_CTOR; + fvec4SIMD(fvec4SIMD const & v) GLM_DEFAULT; + fvec4SIMD(__m128 const & Data); + + ////////////////////////////////////// + // Explicit basic constructors + + explicit fvec4SIMD( + ctor); + explicit fvec4SIMD( + float const & s); + explicit fvec4SIMD( + float const & x, + float const & y, + float const & z, + float const & w); + explicit fvec4SIMD( + vec4 const & v); + + //////////////////////////////////////// + //// Conversion vector constructors + + fvec4SIMD(vec2 const & v, float const & s1, float const & s2); + fvec4SIMD(float const & s1, vec2 const & v, float const & s2); + fvec4SIMD(float const & s1, float const & s2, vec2 const & v); + fvec4SIMD(vec3 const & v, float const & s); + fvec4SIMD(float const & s, vec3 const & v); + fvec4SIMD(vec2 const & v1, vec2 const & v2); + //fvec4SIMD(ivec4SIMD const & v); + + ////////////////////////////////////// + // Unary arithmetic operators + + fvec4SIMD& operator= (fvec4SIMD const & v) GLM_DEFAULT; + fvec4SIMD& operator+=(fvec4SIMD const & v); + fvec4SIMD& operator-=(fvec4SIMD const & v); + fvec4SIMD& operator*=(fvec4SIMD const & v); + fvec4SIMD& operator/=(fvec4SIMD const & v); + + fvec4SIMD& operator+=(float const & s); + fvec4SIMD& operator-=(float const & s); + fvec4SIMD& operator*=(float const & s); + fvec4SIMD& operator/=(float const & s); + + fvec4SIMD& operator++(); + fvec4SIMD& operator--(); + + ////////////////////////////////////// + // Swizzle operators + + template <comp X_, comp Y_, comp Z_, comp W_> + fvec4SIMD& swizzle(); + template <comp X_, comp Y_, comp Z_, comp W_> + fvec4SIMD swizzle() const; + template <comp X_, comp Y_, comp Z_> + fvec4SIMD swizzle() const; + template <comp X_, comp Y_> + fvec4SIMD swizzle() const; + template <comp X_> + fvec4SIMD swizzle() const; + }; +}//namespace detail + + typedef glm::detail::fvec4SIMD simdVec4; + + /// @addtogroup gtx_simd_vec4 + /// @{ + + //! Convert a simdVec4 to a vec4. + /// @see gtx_simd_vec4 + vec4 vec4_cast( + detail::fvec4SIMD const & x); + + //! Returns x if x >= 0; otherwise, it returns -x. + /// @see gtx_simd_vec4 + detail::fvec4SIMD abs(detail::fvec4SIMD const & x); + + //! Returns 1.0 if x > 0, 0.0 if x = 0, or -1.0 if x < 0. + /// @see gtx_simd_vec4 + detail::fvec4SIMD sign(detail::fvec4SIMD const & x); + + //! Returns a value equal to the nearest integer that is less then or equal to x. + /// @see gtx_simd_vec4 + detail::fvec4SIMD floor(detail::fvec4SIMD const & x); + + //! Returns a value equal to the nearest integer to x + //! whose absolute value is not larger than the absolute value of x. + /// @see gtx_simd_vec4 + detail::fvec4SIMD trunc(detail::fvec4SIMD const & x); + + //! Returns a value equal to the nearest integer to x. + //! The fraction 0.5 will round in a direction chosen by the + //! implementation, presumably the direction that is fastest. + //! This includes the possibility that round(x) returns the + //! same value as roundEven(x) for all values of x. + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD round(detail::fvec4SIMD const & x); + + //! Returns a value equal to the nearest integer to x. + //! A fractional part of 0.5 will round toward the nearest even + //! integer. (Both 3.5 and 4.5 for x will return 4.0.) + /// + /// @see gtx_simd_vec4 + //detail::fvec4SIMD roundEven(detail::fvec4SIMD const & x); + + //! Returns a value equal to the nearest integer + //! that is greater than or equal to x. + /// @see gtx_simd_vec4 + detail::fvec4SIMD ceil(detail::fvec4SIMD const & x); + + //! Return x - floor(x). + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD fract(detail::fvec4SIMD const & x); + + //! Modulus. Returns x - y * floor(x / y) + //! for each component in x using the floating point value y. + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD mod( + detail::fvec4SIMD const & x, + detail::fvec4SIMD const & y); + + //! Modulus. Returns x - y * floor(x / y) + //! for each component in x using the floating point value y. + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD mod( + detail::fvec4SIMD const & x, + float const & y); + + //! Returns the fractional part of x and sets i to the integer + //! part (as a whole number floating point value). Both the + //! return value and the output parameter will have the same + //! sign as x. + //! (From GLM_GTX_simd_vec4 extension, common function) + //detail::fvec4SIMD modf( + // detail::fvec4SIMD const & x, + // detail::fvec4SIMD & i); + + //! Returns y if y < x; otherwise, it returns x. + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD min( + detail::fvec4SIMD const & x, + detail::fvec4SIMD const & y); + + detail::fvec4SIMD min( + detail::fvec4SIMD const & x, + float const & y); + + //! Returns y if x < y; otherwise, it returns x. + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD max( + detail::fvec4SIMD const & x, + detail::fvec4SIMD const & y); + + detail::fvec4SIMD max( + detail::fvec4SIMD const & x, + float const & y); + + //! Returns min(max(x, minVal), maxVal) for each component in x + //! using the floating-point values minVal and maxVal. + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD clamp( + detail::fvec4SIMD const & x, + detail::fvec4SIMD const & minVal, + detail::fvec4SIMD const & maxVal); + + detail::fvec4SIMD clamp( + detail::fvec4SIMD const & x, + float const & minVal, + float const & maxVal); + + //! \return If genTypeU is a floating scalar or vector: + //! Returns x * (1.0 - a) + y * a, i.e., the linear blend of + //! x and y using the floating-point value a. + //! The value for a is not restricted to the range [0, 1]. + //! + //! \return If genTypeU is a boolean scalar or vector: + //! Selects which vector each returned component comes + //! from. For a component of a that is false, the + //! corresponding component of x is returned. For a + //! component of a that is true, the corresponding + //! component of y is returned. Components of x and y that + //! are not selected are allowed to be invalid floating point + //! values and will have no effect on the results. Thus, this + //! provides different functionality than + //! genType mix(genType x, genType y, genType(a)) + //! where a is a Boolean vector. + //! + //! From GLSL 1.30.08 specification, section 8.3 + //! + //! \param[in] x Floating point scalar or vector. + //! \param[in] y Floating point scalar or vector. + //! \param[in] a Floating point or boolean scalar or vector. + //! + /// \todo Test when 'a' is a boolean. + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD mix( + detail::fvec4SIMD const & x, + detail::fvec4SIMD const & y, + detail::fvec4SIMD const & a); + + //! Returns 0.0 if x < edge, otherwise it returns 1.0. + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD step( + detail::fvec4SIMD const & edge, + detail::fvec4SIMD const & x); + + detail::fvec4SIMD step( + float const & edge, + detail::fvec4SIMD const & x); + + //! Returns 0.0 if x <= edge0 and 1.0 if x >= edge1 and + //! performs smooth Hermite interpolation between 0 and 1 + //! when edge0 < x < edge1. This is useful in cases where + //! you would want a threshold function with a smooth + //! transition. This is equivalent to: + //! genType t; + //! t = clamp ((x - edge0) / (edge1 - edge0), 0, 1); + //! return t * t * (3 - 2 * t); + //! Results are undefined if edge0 >= edge1. + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD smoothstep( + detail::fvec4SIMD const & edge0, + detail::fvec4SIMD const & edge1, + detail::fvec4SIMD const & x); + + detail::fvec4SIMD smoothstep( + float const & edge0, + float const & edge1, + detail::fvec4SIMD const & x); + + //! Returns true if x holds a NaN (not a number) + //! representation in the underlying implementation's set of + //! floating point representations. Returns false otherwise, + //! including for implementations with no NaN + //! representations. + /// + /// @see gtx_simd_vec4 + //bvec4 isnan(detail::fvec4SIMD const & x); + + //! Returns true if x holds a positive infinity or negative + //! infinity representation in the underlying implementation's + //! set of floating point representations. Returns false + //! otherwise, including for implementations with no infinity + //! representations. + /// + /// @see gtx_simd_vec4 + //bvec4 isinf(detail::fvec4SIMD const & x); + + //! Returns a signed or unsigned integer value representing + //! the encoding of a floating-point value. The floatingpoint + //! value's bit-level representation is preserved. + /// + /// @see gtx_simd_vec4 + //detail::ivec4SIMD floatBitsToInt(detail::fvec4SIMD const & value); + + //! Returns a floating-point value corresponding to a signed + //! or unsigned integer encoding of a floating-point value. + //! If an inf or NaN is passed in, it will not signal, and the + //! resulting floating point value is unspecified. Otherwise, + //! the bit-level representation is preserved. + /// + /// @see gtx_simd_vec4 + //detail::fvec4SIMD intBitsToFloat(detail::ivec4SIMD const & value); + + //! Computes and returns a * b + c. + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD fma( + detail::fvec4SIMD const & a, + detail::fvec4SIMD const & b, + detail::fvec4SIMD const & c); + + //! Splits x into a floating-point significand in the range + //! [0.5, 1.0) and an integral exponent of two, such that: + //! x = significand * exp(2, exponent) + //! The significand is returned by the function and the + //! exponent is returned in the parameter exp. For a + //! floating-point value of zero, the significant and exponent + //! are both zero. For a floating-point value that is an + //! infinity or is not a number, the results are undefined. + /// + /// @see gtx_simd_vec4 + //detail::fvec4SIMD frexp(detail::fvec4SIMD const & x, detail::ivec4SIMD & exp); + + //! Builds a floating-point number from x and the + //! corresponding integral exponent of two in exp, returning: + //! significand * exp(2, exponent) + //! If this product is too large to be represented in the + //! floating-point type, the result is undefined. + /// + /// @see gtx_simd_vec4 + //detail::fvec4SIMD ldexp(detail::fvec4SIMD const & x, detail::ivec4SIMD const & exp); + + //! Returns the length of x, i.e., sqrt(x * x). + /// + /// @see gtx_simd_vec4 + float length( + detail::fvec4SIMD const & x); + + //! Returns the length of x, i.e., sqrt(x * x). + //! Less accurate but much faster than simdLength. + /// + /// @see gtx_simd_vec4 + float fastLength( + detail::fvec4SIMD const & x); + + //! Returns the length of x, i.e., sqrt(x * x). + //! Slightly more accurate but much slower than simdLength. + /// + /// @see gtx_simd_vec4 + float niceLength( + detail::fvec4SIMD const & x); + + //! Returns the length of x, i.e., sqrt(x * x). + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD length4( + detail::fvec4SIMD const & x); + + //! Returns the length of x, i.e., sqrt(x * x). + //! Less accurate but much faster than simdLength4. + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD fastLength4( + detail::fvec4SIMD const & x); + + //! Returns the length of x, i.e., sqrt(x * x). + //! Slightly more accurate but much slower than simdLength4. + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD niceLength4( + detail::fvec4SIMD const & x); + + //! Returns the distance betwwen p0 and p1, i.e., length(p0 - p1). + /// + /// @see gtx_simd_vec4 + float distance( + detail::fvec4SIMD const & p0, + detail::fvec4SIMD const & p1); + + //! Returns the distance betwwen p0 and p1, i.e., length(p0 - p1). + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD distance4( + detail::fvec4SIMD const & p0, + detail::fvec4SIMD const & p1); + + //! Returns the dot product of x and y, i.e., result = x * y. + /// + /// @see gtx_simd_vec4 + float simdDot( + detail::fvec4SIMD const & x, + detail::fvec4SIMD const & y); + + //! Returns the dot product of x and y, i.e., result = x * y. + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD dot4( + detail::fvec4SIMD const & x, + detail::fvec4SIMD const & y); + + //! Returns the cross product of x and y. + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD cross( + detail::fvec4SIMD const & x, + detail::fvec4SIMD const & y); + + //! Returns a vector in the same direction as x but with length of 1. + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD normalize( + detail::fvec4SIMD const & x); + + //! Returns a vector in the same direction as x but with length of 1. + //! Less accurate but much faster than simdNormalize. + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD fastNormalize( + detail::fvec4SIMD const & x); + + //! If dot(Nref, I) < 0.0, return N, otherwise, return -N. + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD simdFaceforward( + detail::fvec4SIMD const & N, + detail::fvec4SIMD const & I, + detail::fvec4SIMD const & Nref); + + //! For the incident vector I and surface orientation N, + //! returns the reflection direction : result = I - 2.0 * dot(N, I) * N. + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD reflect( + detail::fvec4SIMD const & I, + detail::fvec4SIMD const & N); + + //! For the incident vector I and surface normal N, + //! and the ratio of indices of refraction eta, + //! return the refraction vector. + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD refract( + detail::fvec4SIMD const & I, + detail::fvec4SIMD const & N, + float const & eta); + + //! Returns the positive square root of x. + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD sqrt( + detail::fvec4SIMD const & x); + + //! Returns the positive square root of x with the nicest quality but very slow. + //! Slightly more accurate but much slower than simdSqrt. + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD niceSqrt( + detail::fvec4SIMD const & x); + + //! Returns the positive square root of x + //! Less accurate but much faster than sqrt. + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD fastSqrt( + detail::fvec4SIMD const & x); + + //! Returns the reciprocal of the positive square root of x. + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD inversesqrt( + detail::fvec4SIMD const & x); + + //! Returns the reciprocal of the positive square root of x. + //! Faster than inversesqrt but less accurate. + /// + /// @see gtx_simd_vec4 + detail::fvec4SIMD fastInversesqrt( + detail::fvec4SIMD const & x); + + /// @} +}//namespace glm + +#include "simd_vec4.inl" + +#if (GLM_COMPILER & GLM_COMPILER_VC) +# pragma warning(pop) +#endif + +#endif//(GLM_ARCH != GLM_ARCH_PURE) |