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Diffstat (limited to 'external/include/glm/detail/func_integer.hpp')
| -rw-r--r-- | external/include/glm/detail/func_integer.hpp | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/external/include/glm/detail/func_integer.hpp b/external/include/glm/detail/func_integer.hpp new file mode 100644 index 0000000..bd195a9 --- /dev/null +++ b/external/include/glm/detail/func_integer.hpp @@ -0,0 +1,203 @@ +/// @ref core +/// @file glm/detail/func_integer.hpp +/// +/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.8 Integer Functions</a> +/// +/// @defgroup core_func_integer Integer functions +/// @ingroup core +/// +/// These all operate component-wise. The description is per component. +/// The notation [a, b] means the set of bits from bit-number a through bit-number +/// b, inclusive. The lowest-order bit is bit 0. + +#pragma once + +#include "setup.hpp" +#include "precision.hpp" +#include "func_common.hpp" +#include "func_vector_relational.hpp" + +namespace glm +{ + /// @addtogroup core_func_integer + /// @{ + + /// Adds 32-bit unsigned integer x and y, returning the sum + /// modulo pow(2, 32). The value carry is set to 0 if the sum was + /// less than pow(2, 32), or to 1 otherwise. + /// + /// @tparam genUType Unsigned integer scalar or vector types. + /// + /// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/uaddCarry.xml">GLSL uaddCarry man page</a> + /// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.8 Integer Functions</a> + template <precision P, template <typename, precision> class vecType> + GLM_FUNC_DECL vecType<uint, P> uaddCarry( + vecType<uint, P> const & x, + vecType<uint, P> const & y, + vecType<uint, P> & carry); + + /// Subtracts the 32-bit unsigned integer y from x, returning + /// the difference if non-negative, or pow(2, 32) plus the difference + /// otherwise. The value borrow is set to 0 if x >= y, or to 1 otherwise. + /// + /// @tparam genUType Unsigned integer scalar or vector types. + /// + /// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/usubBorrow.xml">GLSL usubBorrow man page</a> + /// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.8 Integer Functions</a> + template <precision P, template <typename, precision> class vecType> + GLM_FUNC_DECL vecType<uint, P> usubBorrow( + vecType<uint, P> const & x, + vecType<uint, P> const & y, + vecType<uint, P> & borrow); + + /// Multiplies 32-bit integers x and y, producing a 64-bit + /// result. The 32 least-significant bits are returned in lsb. + /// The 32 most-significant bits are returned in msb. + /// + /// @tparam genUType Unsigned integer scalar or vector types. + /// + /// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/umulExtended.xml">GLSL umulExtended man page</a> + /// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.8 Integer Functions</a> + template <precision P, template <typename, precision> class vecType> + GLM_FUNC_DECL void umulExtended( + vecType<uint, P> const & x, + vecType<uint, P> const & y, + vecType<uint, P> & msb, + vecType<uint, P> & lsb); + + /// Multiplies 32-bit integers x and y, producing a 64-bit + /// result. The 32 least-significant bits are returned in lsb. + /// The 32 most-significant bits are returned in msb. + /// + /// @tparam genIType Signed integer scalar or vector types. + /// + /// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/imulExtended.xml">GLSL imulExtended man page</a> + /// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.8 Integer Functions</a> + template <precision P, template <typename, precision> class vecType> + GLM_FUNC_DECL void imulExtended( + vecType<int, P> const & x, + vecType<int, P> const & y, + vecType<int, P> & msb, + vecType<int, P> & lsb); + + /// Extracts bits [offset, offset + bits - 1] from value, + /// returning them in the least significant bits of the result. + /// For unsigned data types, the most significant bits of the + /// result will be set to zero. For signed data types, the + /// most significant bits will be set to the value of bit offset + base - 1. + /// + /// If bits is zero, the result will be zero. The result will be + /// undefined if offset or bits is negative, or if the sum of + /// offset and bits is greater than the number of bits used + /// to store the operand. + /// + /// @tparam T Signed or unsigned integer scalar or vector types. + /// + /// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/bitfieldExtract.xml">GLSL bitfieldExtract man page</a> + /// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.8 Integer Functions</a> + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_DECL vecType<T, P> bitfieldExtract( + vecType<T, P> const & Value, + int Offset, + int Bits); + + /// Returns the insertion the bits least-significant bits of insert into base. + /// + /// The result will have bits [offset, offset + bits - 1] taken + /// from bits [0, bits - 1] of insert, and all other bits taken + /// directly from the corresponding bits of base. If bits is + /// zero, the result will simply be base. The result will be + /// undefined if offset or bits is negative, or if the sum of + /// offset and bits is greater than the number of bits used to + /// store the operand. + /// + /// @tparam T Signed or unsigned integer scalar or vector types. + /// + /// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/bitfieldInsert.xml">GLSL bitfieldInsert man page</a> + /// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.8 Integer Functions</a> + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_DECL vecType<T, P> bitfieldInsert( + vecType<T, P> const & Base, + vecType<T, P> const & Insert, + int Offset, + int Bits); + + /// Returns the reversal of the bits of value. + /// The bit numbered n of the result will be taken from bit (bits - 1) - n of value, + /// where bits is the total number of bits used to represent value. + /// + /// @tparam T Signed or unsigned integer scalar or vector types. + /// + /// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/bitfieldReverse.xml">GLSL bitfieldReverse man page</a> + /// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.8 Integer Functions</a> + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_DECL vecType<T, P> bitfieldReverse(vecType<T, P> const & v); + + /// Returns the number of bits set to 1 in the binary representation of value. + /// + /// @tparam T Signed or unsigned integer scalar or vector types. + /// + /// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/bitCount.xml">GLSL bitCount man page</a> + /// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.8 Integer Functions</a> + template <typename genType> + GLM_FUNC_DECL int bitCount(genType v); + + /// Returns the number of bits set to 1 in the binary representation of value. + /// + /// @tparam T Signed or unsigned integer scalar or vector types. + /// + /// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/bitCount.xml">GLSL bitCount man page</a> + /// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.8 Integer Functions</a> + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_DECL vecType<int, P> bitCount(vecType<T, P> const & v); + + /// Returns the bit number of the least significant bit set to + /// 1 in the binary representation of value. + /// If value is zero, -1 will be returned. + /// + /// @tparam T Signed or unsigned integer scalar types. + /// + /// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/findLSB.xml">GLSL findLSB man page</a> + /// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.8 Integer Functions</a> + template <typename genIUType> + GLM_FUNC_DECL int findLSB(genIUType x); + + /// Returns the bit number of the least significant bit set to + /// 1 in the binary representation of value. + /// If value is zero, -1 will be returned. + /// + /// @tparam T Signed or unsigned integer scalar types. + /// + /// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/findLSB.xml">GLSL findLSB man page</a> + /// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.8 Integer Functions</a> + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_DECL vecType<int, P> findLSB(vecType<T, P> const & v); + + /// Returns the bit number of the most significant bit in the binary representation of value. + /// For positive integers, the result will be the bit number of the most significant bit set to 1. + /// For negative integers, the result will be the bit number of the most significant + /// bit set to 0. For a value of zero or negative one, -1 will be returned. + /// + /// @tparam T Signed or unsigned integer scalar types. + /// + /// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/findMSB.xml">GLSL findMSB man page</a> + /// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.8 Integer Functions</a> + template <typename genIUType> + GLM_FUNC_DECL int findMSB(genIUType x); + + /// Returns the bit number of the most significant bit in the binary representation of value. + /// For positive integers, the result will be the bit number of the most significant bit set to 1. + /// For negative integers, the result will be the bit number of the most significant + /// bit set to 0. For a value of zero or negative one, -1 will be returned. + /// + /// @tparam T Signed or unsigned integer scalar types. + /// + /// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/findMSB.xml">GLSL findMSB man page</a> + /// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.8 Integer Functions</a> + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_DECL vecType<int, P> findMSB(vecType<T, P> const & v); + + /// @} +}//namespace glm + +#include "func_integer.inl" |