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authorLaG1924 <12997935+LaG1924@users.noreply.github.com>2018-01-13 03:51:33 +0100
committerLaG1924 <12997935+LaG1924@users.noreply.github.com>2018-01-13 03:51:34 +0100
commit6f67371bb1b46579ae837d0e0c61ac1b291be743 (patch)
tree5a43692a064d84e5c5688b1b3639342555139c3c /external/include/glm/detail/func_integer.hpp
parentBackported to C++14 (diff)
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+/// @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"