307 lines
8.9 KiB
C++
307 lines
8.9 KiB
C++
/// @ref core
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/// @file glm/detail/type_int.hpp
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#pragma once
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#include "setup.hpp"
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#if GLM_HAS_MAKE_SIGNED
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# include <type_traits>
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#endif
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#if GLM_HAS_EXTENDED_INTEGER_TYPE
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# include <cstdint>
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#endif
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namespace glm{
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namespace detail
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{
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# if GLM_HAS_EXTENDED_INTEGER_TYPE
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typedef std::int8_t int8;
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typedef std::int16_t int16;
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typedef std::int32_t int32;
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typedef std::int64_t int64;
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typedef std::uint8_t uint8;
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typedef std::uint16_t uint16;
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typedef std::uint32_t uint32;
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typedef std::uint64_t uint64;
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# else
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# if(defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)) // C99 detected, 64 bit types available
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typedef int64_t sint64;
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typedef uint64_t uint64;
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# elif GLM_COMPILER & GLM_COMPILER_VC
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typedef signed __int64 sint64;
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typedef unsigned __int64 uint64;
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# elif GLM_COMPILER & GLM_COMPILER_GCC
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# pragma GCC diagnostic ignored "-Wlong-long"
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__extension__ typedef signed long long sint64;
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__extension__ typedef unsigned long long uint64;
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# elif (GLM_COMPILER & GLM_COMPILER_CLANG)
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# pragma clang diagnostic ignored "-Wc++11-long-long"
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typedef signed long long sint64;
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typedef unsigned long long uint64;
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# else//unknown compiler
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typedef signed long long sint64;
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typedef unsigned long long uint64;
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# endif//GLM_COMPILER
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typedef signed char int8;
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typedef signed short int16;
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typedef signed int int32;
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typedef sint64 int64;
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typedef unsigned char uint8;
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typedef unsigned short uint16;
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typedef unsigned int uint32;
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typedef uint64 uint64;
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#endif//
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typedef signed int lowp_int_t;
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typedef signed int mediump_int_t;
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typedef signed int highp_int_t;
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typedef unsigned int lowp_uint_t;
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typedef unsigned int mediump_uint_t;
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typedef unsigned int highp_uint_t;
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# if GLM_HAS_MAKE_SIGNED
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using std::make_signed;
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using std::make_unsigned;
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# else//GLM_HAS_MAKE_SIGNED
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template <typename genType>
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struct make_signed
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{};
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template <>
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struct make_signed<char>
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{
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typedef char type;
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};
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template <>
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struct make_signed<short>
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{
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typedef short type;
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};
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template <>
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struct make_signed<int>
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{
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typedef int type;
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};
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template <>
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struct make_signed<long>
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{
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typedef long type;
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};
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template <>
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struct make_signed<unsigned char>
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{
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typedef char type;
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};
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template <>
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struct make_signed<unsigned short>
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{
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typedef short type;
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};
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template <>
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struct make_signed<unsigned int>
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{
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typedef int type;
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};
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template <>
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struct make_signed<unsigned long>
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{
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typedef long type;
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};
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template <typename genType>
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struct make_unsigned
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{};
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template <>
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struct make_unsigned<char>
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{
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typedef unsigned char type;
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};
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template <>
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struct make_unsigned<short>
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{
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typedef unsigned short type;
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};
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template <>
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struct make_unsigned<int>
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{
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typedef unsigned int type;
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};
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template <>
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struct make_unsigned<long>
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{
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typedef unsigned long type;
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};
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template <>
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struct make_unsigned<unsigned char>
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{
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typedef unsigned char type;
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};
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template <>
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struct make_unsigned<unsigned short>
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{
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typedef unsigned short type;
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};
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template <>
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struct make_unsigned<unsigned int>
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{
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typedef unsigned int type;
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};
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template <>
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struct make_unsigned<unsigned long>
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{
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typedef unsigned long type;
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};
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template <>
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struct make_signed<long long>
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{
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typedef long long type;
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};
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template <>
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struct make_signed<unsigned long long>
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{
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typedef long long type;
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};
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template <>
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struct make_unsigned<long long>
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{
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typedef unsigned long long type;
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};
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template <>
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struct make_unsigned<unsigned long long>
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{
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typedef unsigned long long type;
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};
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# endif//GLM_HAS_MAKE_SIGNED
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}//namespace detail
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typedef detail::int8 int8;
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typedef detail::int16 int16;
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typedef detail::int32 int32;
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typedef detail::int64 int64;
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typedef detail::uint8 uint8;
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typedef detail::uint16 uint16;
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typedef detail::uint32 uint32;
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typedef detail::uint64 uint64;
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/// @addtogroup core_precision
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/// @{
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/// Low precision signed integer.
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/// There is no guarantee on the actual precision.
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///
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.1.3 Integers</a>
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.7.2 Precision Qualifier</a>
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typedef detail::lowp_int_t lowp_int;
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/// Medium precision signed integer.
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/// There is no guarantee on the actual precision.
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///
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.1.3 Integers</a>
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.7.2 Precision Qualifier</a>
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typedef detail::mediump_int_t mediump_int;
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/// High precision signed integer.
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/// There is no guarantee on the actual precision.
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///
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.1.3 Integers</a>
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.7.2 Precision Qualifier</a>
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typedef detail::highp_int_t highp_int;
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/// Low precision unsigned integer.
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/// There is no guarantee on the actual precision.
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///
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.1.3 Integers</a>
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.7.2 Precision Qualifier</a>
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typedef detail::lowp_uint_t lowp_uint;
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/// Medium precision unsigned integer.
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/// There is no guarantee on the actual precision.
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///
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.1.3 Integers</a>
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.7.2 Precision Qualifier</a>
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typedef detail::mediump_uint_t mediump_uint;
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/// High precision unsigned integer.
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/// There is no guarantee on the actual precision.
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///
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.1.3 Integers</a>
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.7.2 Precision Qualifier</a>
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typedef detail::highp_uint_t highp_uint;
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#if(!defined(GLM_PRECISION_HIGHP_INT) && !defined(GLM_PRECISION_MEDIUMP_INT) && !defined(GLM_PRECISION_LOWP_INT))
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typedef mediump_int int_t;
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#elif(defined(GLM_PRECISION_HIGHP_INT) && !defined(GLM_PRECISION_MEDIUMP_INT) && !defined(GLM_PRECISION_LOWP_INT))
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typedef highp_int int_t;
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#elif(!defined(GLM_PRECISION_HIGHP_INT) && defined(GLM_PRECISION_MEDIUMP_INT) && !defined(GLM_PRECISION_LOWP_INT))
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typedef mediump_int int_t;
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#elif(!defined(GLM_PRECISION_HIGHP_INT) && !defined(GLM_PRECISION_MEDIUMP_INT) && defined(GLM_PRECISION_LOWP_INT))
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typedef lowp_int int_t;
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#else
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# error "GLM error: multiple default precision requested for signed integer types"
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#endif
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#if(!defined(GLM_PRECISION_HIGHP_UINT) && !defined(GLM_PRECISION_MEDIUMP_UINT) && !defined(GLM_PRECISION_LOWP_UINT))
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typedef mediump_uint uint_t;
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#elif(defined(GLM_PRECISION_HIGHP_UINT) && !defined(GLM_PRECISION_MEDIUMP_UINT) && !defined(GLM_PRECISION_LOWP_UINT))
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typedef highp_uint uint_t;
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#elif(!defined(GLM_PRECISION_HIGHP_UINT) && defined(GLM_PRECISION_MEDIUMP_UINT) && !defined(GLM_PRECISION_LOWP_UINT))
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typedef mediump_uint uint_t;
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#elif(!defined(GLM_PRECISION_HIGHP_UINT) && !defined(GLM_PRECISION_MEDIUMP_UINT) && defined(GLM_PRECISION_LOWP_UINT))
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typedef lowp_uint uint_t;
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#else
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# error "GLM error: multiple default precision requested for unsigned integer types"
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#endif
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/// Unsigned integer type.
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///
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 4.1.3 Integers</a>
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typedef unsigned int uint;
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/// @}
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////////////////////
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// check type sizes
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#ifndef GLM_STATIC_ASSERT_NULL
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GLM_STATIC_ASSERT(sizeof(glm::int8) == 1, "int8 size isn't 1 byte on this platform");
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GLM_STATIC_ASSERT(sizeof(glm::int16) == 2, "int16 size isn't 2 bytes on this platform");
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GLM_STATIC_ASSERT(sizeof(glm::int32) == 4, "int32 size isn't 4 bytes on this platform");
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GLM_STATIC_ASSERT(sizeof(glm::int64) == 8, "int64 size isn't 8 bytes on this platform");
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GLM_STATIC_ASSERT(sizeof(glm::uint8) == 1, "uint8 size isn't 1 byte on this platform");
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GLM_STATIC_ASSERT(sizeof(glm::uint16) == 2, "uint16 size isn't 2 bytes on this platform");
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GLM_STATIC_ASSERT(sizeof(glm::uint32) == 4, "uint32 size isn't 4 bytes on this platform");
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GLM_STATIC_ASSERT(sizeof(glm::uint64) == 8, "uint64 size isn't 8 bytes on this platform");
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#endif//GLM_STATIC_ASSERT_NULL
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}//namespace glm
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