type_int.hpp 10.1 KB
Newer Older
Philip Trettner's avatar
Philip Trettner committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326
///////////////////////////////////////////////////////////////////////////////////
/// OpenGL Mathematics (glm.g-truc.net)
///
/// Copyright (c) 2005 - 2015 G-Truc Creation (www.g-truc.net)
/// Permission is hereby granted, free of charge, to any person obtaining a copy
/// of this software and associated documentation files (the "Software"), to deal
/// in the Software without restriction, including without limitation the rights
/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
/// copies of the Software, and to permit persons to whom the Software is
/// furnished to do so, subject to the following conditions:
/// 
/// The above copyright notice and this permission notice shall be included in
/// all copies or substantial portions of the Software.
/// 
/// Restrictions:
///		By making use of the Software for military purposes, you choose to make
///		a Bunny unhappy.
/// 
/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
/// THE SOFTWARE.
///
/// @ref core
/// @file glm/detail/type_int.hpp
/// @date 2008-08-22 / 2013-03-30
/// @author Christophe Riccio
///////////////////////////////////////////////////////////////////////////////////

#pragma once

#include "setup.hpp"
#if GLM_HAS_MAKE_SIGNED
#	include <type_traits>
#endif

#if GLM_HAS_EXTENDED_INTEGER_TYPE
#	include <cstdint>
#endif

namespace glm{
namespace detail
{
#	if GLM_HAS_EXTENDED_INTEGER_TYPE
		typedef std::int8_t					int8;
		typedef std::int16_t				int16;
		typedef std::int32_t				int32;
		typedef std::int64_t				int64;
	
		typedef std::uint8_t				uint8;
		typedef std::uint16_t				uint16;
		typedef std::uint32_t				uint32;
		typedef std::uint64_t				uint64;
#	else
#		if(defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)) // C99 detected, 64 bit types available
			typedef int64_t					sint64;
			typedef uint64_t				uint64;
#		elif GLM_COMPILER & GLM_COMPILER_VC
			typedef signed __int64			sint64;
			typedef unsigned __int64		uint64;
#		elif GLM_COMPILER & GLM_COMPILER_GCC
			__extension__ typedef signed long long		sint64;
			__extension__ typedef unsigned long long	uint64;
#		else//unknown compiler
			typedef signed long	long		sint64;
			typedef unsigned long long		uint64;
#		endif//GLM_COMPILER
		
		typedef signed char					int8;
		typedef signed short				int16;
		typedef signed int					int32;
		typedef sint64						int64;
	
		typedef unsigned char				uint8;
		typedef unsigned short				uint16;
		typedef unsigned int				uint32;
		typedef uint64						uint64;
#endif//
	
	typedef signed int						lowp_int_t;
	typedef signed int						mediump_int_t;
	typedef signed int						highp_int_t;
	
	typedef unsigned int					lowp_uint_t;
	typedef unsigned int					mediump_uint_t;
	typedef unsigned int					highp_uint_t;

#	if GLM_HAS_MAKE_SIGNED
		using std::make_signed;
		using std::make_unsigned;

#	else//GLM_HAS_MAKE_SIGNED
		template <typename genType>
		struct make_signed
		{};

		template <>
		struct make_signed<char>
		{
			typedef char type;
		};

		template <>
		struct make_signed<short>
		{
			typedef short type;
		};

		template <>
		struct make_signed<int>
		{
			typedef int type;
		};

		template <>
		struct make_signed<long>
		{
			typedef long type;
		};

		template <>
		struct make_signed<long long>
		{
			typedef long long type;
		};

		template <>
		struct make_signed<unsigned char>
		{
			typedef char type;
		};

		template <>
		struct make_signed<unsigned short>
		{
			typedef short type;
		};

		template <>
		struct make_signed<unsigned int>
		{
			typedef int type;
		};

		template <>
		struct make_signed<unsigned long>
		{
			typedef long type;
		};

		template <>
		struct make_signed<unsigned long long>
		{
			typedef long long type;
		};

		template <typename genType>
		struct make_unsigned
		{};

		template <>
		struct make_unsigned<char>
		{
			typedef unsigned char type;
		};

		template <>
		struct make_unsigned<short>
		{
			typedef unsigned short type;
		};

		template <>
		struct make_unsigned<int>
		{
			typedef unsigned int type;
		};

		template <>
		struct make_unsigned<long>
		{
			typedef unsigned long type;
		};

		template <>
		struct make_unsigned<long long>
		{
			typedef unsigned long long type;
		};

		template <>
		struct make_unsigned<unsigned char>
		{
			typedef unsigned char type;
		};

		template <>
		struct make_unsigned<unsigned short>
		{
			typedef unsigned short type;
		};

		template <>
		struct make_unsigned<unsigned int>
		{
			typedef unsigned int type;
		};

		template <>
		struct make_unsigned<unsigned long>
		{
			typedef unsigned long type;
		};

		template <>
		struct make_unsigned<unsigned long long>
		{
			typedef unsigned long long type;
		};
#	endif//GLM_HAS_MAKE_SIGNED
}//namespace detail

	typedef detail::int8					int8;
	typedef detail::int16					int16;
	typedef detail::int32					int32;
	typedef detail::int64					int64;
	
	typedef detail::uint8					uint8;
	typedef detail::uint16					uint16;
	typedef detail::uint32					uint32;
	typedef detail::uint64					uint64;

	/// @addtogroup core_precision
	/// @{

	/// Low precision signed integer. 
	/// There is no guarantee on the actual precision.
	/// 
	/// @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>
	/// @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>
	typedef detail::lowp_int_t				lowp_int;

	/// Medium precision signed integer. 
	/// There is no guarantee on the actual precision.
	/// 
	/// @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>
	/// @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>
	typedef detail::mediump_int_t			mediump_int;

	/// High precision signed integer.
	/// There is no guarantee on the actual precision.
	/// 
	/// @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>
	/// @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>
	typedef detail::highp_int_t				highp_int;

	/// Low precision unsigned integer. 
	/// There is no guarantee on the actual precision.
	/// 
	/// @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>
	/// @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>
	typedef detail::lowp_uint_t				lowp_uint;

	/// Medium precision unsigned integer. 
	/// There is no guarantee on the actual precision.
	/// 
	/// @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>
	/// @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>
	typedef detail::mediump_uint_t			mediump_uint;

	/// High precision unsigned integer. 
	/// There is no guarantee on the actual precision.
	/// 
	/// @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>
	/// @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>
	typedef detail::highp_uint_t			highp_uint;

#if(!defined(GLM_PRECISION_HIGHP_INT) && !defined(GLM_PRECISION_MEDIUMP_INT) && !defined(GLM_PRECISION_LOWP_INT))
	typedef mediump_int					int_t;
#elif(defined(GLM_PRECISION_HIGHP_INT) && !defined(GLM_PRECISION_MEDIUMP_INT) && !defined(GLM_PRECISION_LOWP_INT))
	typedef highp_int					int_t;
#elif(!defined(GLM_PRECISION_HIGHP_INT) && defined(GLM_PRECISION_MEDIUMP_INT) && !defined(GLM_PRECISION_LOWP_INT))
	typedef mediump_int					int_t;
#elif(!defined(GLM_PRECISION_HIGHP_INT) && !defined(GLM_PRECISION_MEDIUMP_INT) && defined(GLM_PRECISION_LOWP_INT))
	typedef lowp_int					int_t;
#else
#	error "GLM error: multiple default precision requested for signed interger types"
#endif

#if(!defined(GLM_PRECISION_HIGHP_UINT) && !defined(GLM_PRECISION_MEDIUMP_UINT) && !defined(GLM_PRECISION_LOWP_UINT))
	typedef mediump_uint				uint_t;
#elif(defined(GLM_PRECISION_HIGHP_UINT) && !defined(GLM_PRECISION_MEDIUMP_UINT) && !defined(GLM_PRECISION_LOWP_UINT))
	typedef highp_uint					uint_t;
#elif(!defined(GLM_PRECISION_HIGHP_UINT) && defined(GLM_PRECISION_MEDIUMP_UINT) && !defined(GLM_PRECISION_LOWP_UINT))
	typedef mediump_uint				uint_t;
#elif(!defined(GLM_PRECISION_HIGHP_UINT) && !defined(GLM_PRECISION_MEDIUMP_UINT) && defined(GLM_PRECISION_LOWP_UINT))
	typedef lowp_uint					uint_t;
#else
#	error "GLM error: multiple default precision requested for unsigned interger types"
#endif

	/// Unsigned integer type.
	/// 
	/// @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>
	typedef unsigned int				uint;

	/// @}

////////////////////
// check type sizes
#ifndef GLM_STATIC_ASSERT_NULL
	GLM_STATIC_ASSERT(sizeof(glm::int8) == 1, "int8 size isn't 1 byte on this platform");
	GLM_STATIC_ASSERT(sizeof(glm::int16) == 2, "int16 size isn't 2 bytes on this platform");
	GLM_STATIC_ASSERT(sizeof(glm::int32) == 4, "int32 size isn't 4 bytes on this platform");
	GLM_STATIC_ASSERT(sizeof(glm::int64) == 8, "int64 size isn't 8 bytes on this platform");

	GLM_STATIC_ASSERT(sizeof(glm::uint8) == 1, "uint8 size isn't 1 byte on this platform");
	GLM_STATIC_ASSERT(sizeof(glm::uint16) == 2, "uint16 size isn't 2 bytes on this platform");
	GLM_STATIC_ASSERT(sizeof(glm::uint32) == 4, "uint32 size isn't 4 bytes on this platform");
	GLM_STATIC_ASSERT(sizeof(glm::uint64) == 8, "uint64 size isn't 8 bytes on this platform");
#endif//GLM_STATIC_ASSERT_NULL

}//namespace glm