877 lines
32 KiB
C
877 lines
32 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2024 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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/**
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* \file SDL_stdinc.h
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*
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* This is a general header that includes C language support.
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*/
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#ifndef SDL_stdinc_h_
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#define SDL_stdinc_h_
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#include <SDL3/SDL_platform_defines.h>
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#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
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#include <inttypes.h>
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#endif
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#include <stdarg.h>
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#include <stdint.h>
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#include <string.h>
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#include <wchar.h>
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#ifndef SDL_DISABLE_ALLOCA
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# ifndef alloca
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# ifdef HAVE_ALLOCA_H
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# include <alloca.h>
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# elif defined(SDL_PLATFORM_NETBSD)
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# if defined(__STRICT_ANSI__)
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# define SDL_DISABLE_ALLOCA
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# else
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# include <stdlib.h>
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# endif
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# elif defined(__GNUC__)
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# define alloca __builtin_alloca
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# elif defined(_MSC_VER)
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# include <malloc.h>
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# define alloca _alloca
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# elif defined(__WATCOMC__)
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# include <malloc.h>
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# elif defined(__BORLANDC__)
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# include <malloc.h>
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# elif defined(__DMC__)
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# include <stdlib.h>
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# elif defined(SDL_PLATFORM_AIX)
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# pragma alloca
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# elif defined(__MRC__)
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void *alloca(unsigned);
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# else
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char *alloca();
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# endif
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# endif
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#endif
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#ifdef SIZE_MAX
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# define SDL_SIZE_MAX SIZE_MAX
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#else
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# define SDL_SIZE_MAX ((size_t) -1)
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#endif
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/**
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* Check if the compiler supports a given builtin.
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* Supported by virtually all clang versions and recent gcc. Use this
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* instead of checking the clang version if possible.
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*/
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#ifdef __has_builtin
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#define SDL_HAS_BUILTIN(x) __has_builtin(x)
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#else
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#define SDL_HAS_BUILTIN(x) 0
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#endif
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/**
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* The number of elements in an array.
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*/
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#define SDL_arraysize(array) (sizeof(array)/sizeof(array[0]))
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#define SDL_TABLESIZE(table) SDL_arraysize(table)
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/**
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* Macro useful for building other macros with strings in them
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*
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* e.g. #define LOG_ERROR(X) OutputDebugString(SDL_STRINGIFY_ARG(__FUNCTION__) ": " X "\n")
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*/
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#define SDL_STRINGIFY_ARG(arg) #arg
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/**
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* \name Cast operators
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*
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* Use proper C++ casts when compiled as C++ to be compatible with the option
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* -Wold-style-cast of GCC (and -Werror=old-style-cast in GCC 4.2 and above).
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*/
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/* @{ */
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#ifdef __cplusplus
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#define SDL_reinterpret_cast(type, expression) reinterpret_cast<type>(expression)
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#define SDL_static_cast(type, expression) static_cast<type>(expression)
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#define SDL_const_cast(type, expression) const_cast<type>(expression)
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#else
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#define SDL_reinterpret_cast(type, expression) ((type)(expression))
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#define SDL_static_cast(type, expression) ((type)(expression))
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#define SDL_const_cast(type, expression) ((type)(expression))
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#endif
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/* @} *//* Cast operators */
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/* Define a four character code as a Uint32 */
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#define SDL_FOURCC(A, B, C, D) \
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((SDL_static_cast(Uint32, SDL_static_cast(Uint8, (A))) << 0) | \
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(SDL_static_cast(Uint32, SDL_static_cast(Uint8, (B))) << 8) | \
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(SDL_static_cast(Uint32, SDL_static_cast(Uint8, (C))) << 16) | \
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(SDL_static_cast(Uint32, SDL_static_cast(Uint8, (D))) << 24))
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/**
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* \name Basic data types
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*/
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/* @{ */
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/**
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* A boolean type.
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*/
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#define SDL_FALSE 0
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#define SDL_TRUE 1
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typedef int SDL_bool;
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/**
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* A signed 8-bit integer type.
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*/
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#define SDL_MAX_SINT8 ((Sint8)0x7F) /* 127 */
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#define SDL_MIN_SINT8 ((Sint8)(~0x7F)) /* -128 */
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typedef int8_t Sint8;
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/**
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* An unsigned 8-bit integer type.
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*/
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#define SDL_MAX_UINT8 ((Uint8)0xFF) /* 255 */
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#define SDL_MIN_UINT8 ((Uint8)0x00) /* 0 */
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typedef uint8_t Uint8;
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/**
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* A signed 16-bit integer type.
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*/
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#define SDL_MAX_SINT16 ((Sint16)0x7FFF) /* 32767 */
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#define SDL_MIN_SINT16 ((Sint16)(~0x7FFF)) /* -32768 */
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typedef int16_t Sint16;
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/**
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* An unsigned 16-bit integer type.
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*/
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#define SDL_MAX_UINT16 ((Uint16)0xFFFF) /* 65535 */
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#define SDL_MIN_UINT16 ((Uint16)0x0000) /* 0 */
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typedef uint16_t Uint16;
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/**
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* A signed 32-bit integer type.
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*/
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#define SDL_MAX_SINT32 ((Sint32)0x7FFFFFFF) /* 2147483647 */
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#define SDL_MIN_SINT32 ((Sint32)(~0x7FFFFFFF)) /* -2147483648 */
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typedef int32_t Sint32;
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/**
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* An unsigned 32-bit integer type.
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*/
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#define SDL_MAX_UINT32 ((Uint32)0xFFFFFFFFu) /* 4294967295 */
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#define SDL_MIN_UINT32 ((Uint32)0x00000000) /* 0 */
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typedef uint32_t Uint32;
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/**
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* A signed 64-bit integer type.
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*/
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#define SDL_MAX_SINT64 ((Sint64)0x7FFFFFFFFFFFFFFFll) /* 9223372036854775807 */
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#define SDL_MIN_SINT64 ((Sint64)(~0x7FFFFFFFFFFFFFFFll)) /* -9223372036854775808 */
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typedef int64_t Sint64;
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/**
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* An unsigned 64-bit integer type.
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*/
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#define SDL_MAX_UINT64 ((Uint64)0xFFFFFFFFFFFFFFFFull) /* 18446744073709551615 */
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#define SDL_MIN_UINT64 ((Uint64)(0x0000000000000000ull)) /* 0 */
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typedef uint64_t Uint64;
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/**
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* SDL times are signed, 64-bit integers representing nanoseconds since the Unix epoch (Jan 1, 1970)
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*
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* They can be converted between POSIX time_t values with SDL_NS_TO_SECONDS() and SDL_SECONDS_TO_NS(),
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* and between Windows FILETIME values with SDL_TimeToWindows() and SDL_TimeFromWindows().
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*/
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#define SDL_MAX_TIME SDL_MAX_SINT64
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#define SDL_MIN_TIME SDL_MIN_SINT64
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typedef Sint64 SDL_Time;
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/* @} *//* Basic data types */
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/**
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* \name Floating-point constants
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*/
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/* @{ */
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#ifdef FLT_EPSILON
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#define SDL_FLT_EPSILON FLT_EPSILON
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#else
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#define SDL_FLT_EPSILON 1.1920928955078125e-07F /* 0x0.000002p0 */
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#endif
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/* @} *//* Floating-point constants */
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/* Make sure we have macros for printing width-based integers.
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* <stdint.h> should define these but this is not true all platforms.
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* (for example win32) */
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#ifndef SDL_PRIs64
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#ifdef PRIs64
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#define SDL_PRIs64 PRIs64
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#elif defined(SDL_PLATFORM_WIN32) || defined(SDL_PLATFORM_GDK)
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#define SDL_PRIs64 "I64d"
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#elif defined(__LP64__) && !defined(SDL_PLATFORM_APPLE)
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#define SDL_PRIs64 "ld"
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#else
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#define SDL_PRIs64 "lld"
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#endif
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#endif
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#ifndef SDL_PRIu64
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#ifdef PRIu64
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#define SDL_PRIu64 PRIu64
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#elif defined(SDL_PLATFORM_WIN32) || defined(SDL_PLATFORM_GDK)
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#define SDL_PRIu64 "I64u"
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#elif defined(__LP64__) && !defined(SDL_PLATFORM_APPLE)
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#define SDL_PRIu64 "lu"
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#else
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#define SDL_PRIu64 "llu"
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#endif
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#endif
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#ifndef SDL_PRIx64
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#ifdef PRIx64
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#define SDL_PRIx64 PRIx64
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#elif defined(SDL_PLATFORM_WIN32) || defined(SDL_PLATFORM_GDK)
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#define SDL_PRIx64 "I64x"
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#elif defined(__LP64__) && !defined(SDL_PLATFORM_APPLE)
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#define SDL_PRIx64 "lx"
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#else
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#define SDL_PRIx64 "llx"
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#endif
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#endif
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#ifndef SDL_PRIX64
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#ifdef PRIX64
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#define SDL_PRIX64 PRIX64
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#elif defined(SDL_PLATFORM_WIN32) || defined(SDL_PLATFORM_GDK)
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#define SDL_PRIX64 "I64X"
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#elif defined(__LP64__) && !defined(SDL_PLATFORM_APPLE)
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#define SDL_PRIX64 "lX"
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#else
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#define SDL_PRIX64 "llX"
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#endif
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#endif
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#ifndef SDL_PRIs32
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#ifdef PRId32
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#define SDL_PRIs32 PRId32
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#else
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#define SDL_PRIs32 "d"
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#endif
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#endif
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#ifndef SDL_PRIu32
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#ifdef PRIu32
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#define SDL_PRIu32 PRIu32
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#else
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#define SDL_PRIu32 "u"
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#endif
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#endif
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#ifndef SDL_PRIx32
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#ifdef PRIx32
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#define SDL_PRIx32 PRIx32
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#else
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#define SDL_PRIx32 "x"
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#endif
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#endif
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#ifndef SDL_PRIX32
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#ifdef PRIX32
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#define SDL_PRIX32 PRIX32
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#else
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#define SDL_PRIX32 "X"
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#endif
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#endif
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/* Annotations to help code analysis tools */
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#ifdef SDL_DISABLE_ANALYZE_MACROS
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#define SDL_IN_BYTECAP(x)
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#define SDL_INOUT_Z_CAP(x)
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#define SDL_OUT_Z_CAP(x)
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#define SDL_OUT_CAP(x)
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#define SDL_OUT_BYTECAP(x)
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#define SDL_OUT_Z_BYTECAP(x)
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#define SDL_PRINTF_FORMAT_STRING
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#define SDL_SCANF_FORMAT_STRING
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#define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
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#define SDL_PRINTF_VARARG_FUNCV( fmtargnumber )
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#define SDL_SCANF_VARARG_FUNC( fmtargnumber )
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#define SDL_SCANF_VARARG_FUNCV( fmtargnumber )
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#define SDL_WPRINTF_VARARG_FUNC( fmtargnumber )
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#define SDL_WSCANF_VARARG_FUNC( fmtargnumber )
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#else
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#if defined(_MSC_VER) && (_MSC_VER >= 1600) /* VS 2010 and above */
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#include <sal.h>
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#define SDL_IN_BYTECAP(x) _In_bytecount_(x)
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#define SDL_INOUT_Z_CAP(x) _Inout_z_cap_(x)
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#define SDL_OUT_Z_CAP(x) _Out_z_cap_(x)
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#define SDL_OUT_CAP(x) _Out_cap_(x)
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#define SDL_OUT_BYTECAP(x) _Out_bytecap_(x)
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#define SDL_OUT_Z_BYTECAP(x) _Out_z_bytecap_(x)
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#define SDL_PRINTF_FORMAT_STRING _Printf_format_string_
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#define SDL_SCANF_FORMAT_STRING _Scanf_format_string_impl_
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#else
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#define SDL_IN_BYTECAP(x)
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#define SDL_INOUT_Z_CAP(x)
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#define SDL_OUT_Z_CAP(x)
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#define SDL_OUT_CAP(x)
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#define SDL_OUT_BYTECAP(x)
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#define SDL_OUT_Z_BYTECAP(x)
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#define SDL_PRINTF_FORMAT_STRING
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#define SDL_SCANF_FORMAT_STRING
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#endif
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#ifdef __GNUC__
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#define SDL_PRINTF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __printf__, fmtargnumber, fmtargnumber+1 )))
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#define SDL_PRINTF_VARARG_FUNCV( fmtargnumber ) __attribute__(( format( __printf__, fmtargnumber, 0 )))
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#define SDL_SCANF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __scanf__, fmtargnumber, fmtargnumber+1 )))
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#define SDL_SCANF_VARARG_FUNCV( fmtargnumber ) __attribute__(( format( __scanf__, fmtargnumber, 0 )))
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#define SDL_WPRINTF_VARARG_FUNC( fmtargnumber ) /* __attribute__ (( format( __wprintf__, fmtargnumber, fmtargnumber+1 ))) */
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#define SDL_WSCANF_VARARG_FUNC( fmtargnumber ) /* __attribute__ (( format( __wscanf__, fmtargnumber, fmtargnumber+1 ))) */
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#else
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#define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
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#define SDL_PRINTF_VARARG_FUNCV( fmtargnumber )
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#define SDL_SCANF_VARARG_FUNC( fmtargnumber )
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#define SDL_SCANF_VARARG_FUNCV( fmtargnumber )
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#define SDL_WPRINTF_VARARG_FUNC( fmtargnumber )
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#define SDL_WSCANF_VARARG_FUNC( fmtargnumber )
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#endif
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#endif /* SDL_DISABLE_ANALYZE_MACROS */
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#ifndef SDL_COMPILE_TIME_ASSERT
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#ifdef __cplusplus
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#if (__cplusplus >= 201103L)
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#define SDL_COMPILE_TIME_ASSERT(name, x) static_assert(x, #x)
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#endif
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#elif defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L)
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#define SDL_COMPILE_TIME_ASSERT(name, x) _Static_assert(x, #x)
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#endif
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#endif /* !SDL_COMPILE_TIME_ASSERT */
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#ifndef SDL_COMPILE_TIME_ASSERT
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/* universal, but may trigger -Wunused-local-typedefs */
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#define SDL_COMPILE_TIME_ASSERT(name, x) \
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typedef int SDL_compile_time_assert_ ## name[(x) * 2 - 1]
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#endif
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/** \cond */
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#ifndef DOXYGEN_SHOULD_IGNORE_THIS
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SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
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SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
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SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
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SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
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SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
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SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
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SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
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SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
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#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
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/** \endcond */
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/* Check to make sure enums are the size of ints, for structure packing.
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For both Watcom C/C++ and Borland C/C++ the compiler option that makes
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enums having the size of an int must be enabled.
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This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
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*/
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/** \cond */
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#ifndef DOXYGEN_SHOULD_IGNORE_THIS
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#if !defined(SDL_PLATFORM_ANDROID) && !defined(SDL_PLATFORM_VITA) && !defined(SDL_PLATFORM_3DS)
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/* TODO: include/SDL_stdinc.h:174: error: size of array 'SDL_dummy_enum' is negative */
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typedef enum
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{
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DUMMY_ENUM_VALUE
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} SDL_DUMMY_ENUM;
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SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
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#endif
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#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
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/** \endcond */
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#include <SDL3/SDL_begin_code.h>
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/* Set up for C function definitions, even when using C++ */
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef SDL_DISABLE_ALLOCA
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#define SDL_stack_alloc(type, count) (type*)alloca(sizeof(type)*(count))
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#define SDL_stack_free(data)
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#else
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#define SDL_stack_alloc(type, count) (type*)SDL_malloc(sizeof(type)*(count))
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#define SDL_stack_free(data) SDL_free(data)
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#endif
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extern DECLSPEC SDL_MALLOC void *SDLCALL SDL_malloc(size_t size);
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extern DECLSPEC SDL_MALLOC SDL_ALLOC_SIZE2(1, 2) void *SDLCALL SDL_calloc(size_t nmemb, size_t size);
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extern DECLSPEC SDL_ALLOC_SIZE(2) void *SDLCALL SDL_realloc(void *mem, size_t size);
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extern DECLSPEC void SDLCALL SDL_free(void *mem);
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typedef void *(SDLCALL *SDL_malloc_func)(size_t size);
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typedef void *(SDLCALL *SDL_calloc_func)(size_t nmemb, size_t size);
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typedef void *(SDLCALL *SDL_realloc_func)(void *mem, size_t size);
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typedef void (SDLCALL *SDL_free_func)(void *mem);
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/**
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* Get the original set of SDL memory functions
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*
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* \param malloc_func filled with malloc function
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* \param calloc_func filled with calloc function
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* \param realloc_func filled with realloc function
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* \param free_func filled with free function
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*
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* \since This function is available since SDL 3.0.0.
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*/
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extern DECLSPEC void SDLCALL SDL_GetOriginalMemoryFunctions(SDL_malloc_func *malloc_func,
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SDL_calloc_func *calloc_func,
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SDL_realloc_func *realloc_func,
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SDL_free_func *free_func);
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/**
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* Get the current set of SDL memory functions
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*
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* \param malloc_func filled with malloc function
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* \param calloc_func filled with calloc function
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* \param realloc_func filled with realloc function
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* \param free_func filled with free function
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*
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* \since This function is available since SDL 3.0.0.
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*/
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extern DECLSPEC void SDLCALL SDL_GetMemoryFunctions(SDL_malloc_func *malloc_func,
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SDL_calloc_func *calloc_func,
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SDL_realloc_func *realloc_func,
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SDL_free_func *free_func);
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/**
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* Replace SDL's memory allocation functions with a custom set
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*
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* \param malloc_func custom malloc function
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* \param calloc_func custom calloc function
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|
* \param realloc_func custom realloc function
|
|
* \param free_func custom free function
|
|
* \returns 0 on success or a negative error code on failure; call
|
|
* SDL_GetError() for more information.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*/
|
|
extern DECLSPEC int SDLCALL SDL_SetMemoryFunctions(SDL_malloc_func malloc_func,
|
|
SDL_calloc_func calloc_func,
|
|
SDL_realloc_func realloc_func,
|
|
SDL_free_func free_func);
|
|
|
|
/**
|
|
* Allocate memory aligned to a specific value
|
|
*
|
|
* If `alignment` is less than the size of `void *`, then it will be increased
|
|
* to match that.
|
|
*
|
|
* The returned memory address will be a multiple of the alignment value, and
|
|
* the amount of memory allocated will be a multiple of the alignment value.
|
|
*
|
|
* The memory returned by this function must be freed with SDL_aligned_free()
|
|
*
|
|
* \param alignment the alignment requested
|
|
* \param size the size to allocate
|
|
* \returns a pointer to the aligned memory
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*
|
|
* \sa SDL_aligned_free
|
|
*/
|
|
extern DECLSPEC SDL_MALLOC void *SDLCALL SDL_aligned_alloc(size_t alignment, size_t size);
|
|
|
|
/**
|
|
* Free memory allocated by SDL_aligned_alloc()
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*
|
|
* \sa SDL_aligned_alloc
|
|
*/
|
|
extern DECLSPEC void SDLCALL SDL_aligned_free(void *mem);
|
|
|
|
/**
|
|
* Get the number of outstanding (unfreed) allocations
|
|
*
|
|
* \returns the number of allocations
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*/
|
|
extern DECLSPEC int SDLCALL SDL_GetNumAllocations(void);
|
|
|
|
extern DECLSPEC char *SDLCALL SDL_getenv(const char *name);
|
|
extern DECLSPEC int SDLCALL SDL_setenv(const char *name, const char *value, int overwrite);
|
|
|
|
extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size, int (SDLCALL *compare) (const void *, const void *));
|
|
extern DECLSPEC void * SDLCALL SDL_bsearch(const void *key, const void *base, size_t nmemb, size_t size, int (SDLCALL *compare) (const void *, const void *));
|
|
|
|
extern DECLSPEC void SDLCALL SDL_qsort_r(void *base, size_t nmemb, size_t size, int (SDLCALL *compare) (void *, const void *, const void *), void *userdata);
|
|
extern DECLSPEC void * SDLCALL SDL_bsearch_r(const void *key, const void *base, size_t nmemb, size_t size, int (SDLCALL *compare) (void *, const void *, const void *), void *userdata);
|
|
|
|
extern DECLSPEC int SDLCALL SDL_abs(int x);
|
|
|
|
/* NOTE: these double-evaluate their arguments, so you should never have side effects in the parameters */
|
|
#define SDL_min(x, y) (((x) < (y)) ? (x) : (y))
|
|
#define SDL_max(x, y) (((x) > (y)) ? (x) : (y))
|
|
#define SDL_clamp(x, a, b) (((x) < (a)) ? (a) : (((x) > (b)) ? (b) : (x)))
|
|
|
|
extern DECLSPEC int SDLCALL SDL_isalpha(int x);
|
|
extern DECLSPEC int SDLCALL SDL_isalnum(int x);
|
|
extern DECLSPEC int SDLCALL SDL_isblank(int x);
|
|
extern DECLSPEC int SDLCALL SDL_iscntrl(int x);
|
|
extern DECLSPEC int SDLCALL SDL_isdigit(int x);
|
|
extern DECLSPEC int SDLCALL SDL_isxdigit(int x);
|
|
extern DECLSPEC int SDLCALL SDL_ispunct(int x);
|
|
extern DECLSPEC int SDLCALL SDL_isspace(int x);
|
|
extern DECLSPEC int SDLCALL SDL_isupper(int x);
|
|
extern DECLSPEC int SDLCALL SDL_islower(int x);
|
|
extern DECLSPEC int SDLCALL SDL_isprint(int x);
|
|
extern DECLSPEC int SDLCALL SDL_isgraph(int x);
|
|
extern DECLSPEC int SDLCALL SDL_toupper(int x);
|
|
extern DECLSPEC int SDLCALL SDL_tolower(int x);
|
|
|
|
extern DECLSPEC Uint16 SDLCALL SDL_crc16(Uint16 crc, const void *data, size_t len);
|
|
extern DECLSPEC Uint32 SDLCALL SDL_crc32(Uint32 crc, const void *data, size_t len);
|
|
|
|
extern DECLSPEC void *SDLCALL SDL_memcpy(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
|
|
|
|
/* Take advantage of compiler optimizations for memcpy */
|
|
#ifndef SDL_SLOW_MEMCPY
|
|
#ifdef SDL_memcpy
|
|
#undef SDL_memcpy
|
|
#endif
|
|
#define SDL_memcpy memcpy
|
|
#endif
|
|
|
|
#define SDL_copyp(dst, src) \
|
|
{ SDL_COMPILE_TIME_ASSERT(SDL_copyp, sizeof (*(dst)) == sizeof (*(src))); } \
|
|
SDL_memcpy((dst), (src), sizeof(*(src)))
|
|
|
|
extern DECLSPEC void *SDLCALL SDL_memmove(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
|
|
|
|
/* Take advantage of compiler optimizations for memmove */
|
|
#ifndef SDL_SLOW_MEMMOVE
|
|
#ifdef SDL_memmove
|
|
#undef SDL_memmove
|
|
#endif
|
|
#define SDL_memmove memmove
|
|
#endif
|
|
|
|
extern DECLSPEC void *SDLCALL SDL_memset(SDL_OUT_BYTECAP(len) void *dst, int c, size_t len);
|
|
extern DECLSPEC void *SDLCALL SDL_memset4(void *dst, Uint32 val, size_t dwords);
|
|
|
|
/* Take advantage of compiler optimizations for memset */
|
|
#ifndef SDL_SLOW_MEMSET
|
|
#ifdef SDL_memset
|
|
#undef SDL_memset
|
|
#endif
|
|
#define SDL_memset memset
|
|
#endif
|
|
|
|
#define SDL_zero(x) SDL_memset(&(x), 0, sizeof((x)))
|
|
#define SDL_zerop(x) SDL_memset((x), 0, sizeof(*(x)))
|
|
#define SDL_zeroa(x) SDL_memset((x), 0, sizeof((x)))
|
|
|
|
extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
|
|
|
|
extern DECLSPEC size_t SDLCALL SDL_wcslen(const wchar_t *wstr);
|
|
extern DECLSPEC size_t SDLCALL SDL_wcsnlen(const wchar_t *wstr, size_t maxlen);
|
|
extern DECLSPEC size_t SDLCALL SDL_wcslcpy(SDL_OUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
|
|
extern DECLSPEC size_t SDLCALL SDL_wcslcat(SDL_INOUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
|
|
extern DECLSPEC wchar_t *SDLCALL SDL_wcsdup(const wchar_t *wstr);
|
|
extern DECLSPEC wchar_t *SDLCALL SDL_wcsstr(const wchar_t *haystack, const wchar_t *needle);
|
|
extern DECLSPEC wchar_t *SDLCALL SDL_wcsnstr(const wchar_t *haystack, const wchar_t *needle, size_t maxlen);
|
|
|
|
extern DECLSPEC int SDLCALL SDL_wcscmp(const wchar_t *str1, const wchar_t *str2);
|
|
extern DECLSPEC int SDLCALL SDL_wcsncmp(const wchar_t *str1, const wchar_t *str2, size_t maxlen);
|
|
extern DECLSPEC int SDLCALL SDL_wcscasecmp(const wchar_t *str1, const wchar_t *str2);
|
|
extern DECLSPEC int SDLCALL SDL_wcsncasecmp(const wchar_t *str1, const wchar_t *str2, size_t len);
|
|
extern DECLSPEC long SDLCALL SDL_wcstol(const wchar_t *str, wchar_t **endp, int base);
|
|
|
|
extern DECLSPEC size_t SDLCALL SDL_strlen(const char *str);
|
|
extern DECLSPEC size_t SDLCALL SDL_strnlen(const char *str, size_t maxlen);
|
|
extern DECLSPEC size_t SDLCALL SDL_strlcpy(SDL_OUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
|
|
extern DECLSPEC size_t SDLCALL SDL_utf8strlcpy(SDL_OUT_Z_CAP(dst_bytes) char *dst, const char *src, size_t dst_bytes);
|
|
extern DECLSPEC size_t SDLCALL SDL_strlcat(SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
|
|
extern DECLSPEC SDL_MALLOC char *SDLCALL SDL_strdup(const char *str);
|
|
extern DECLSPEC SDL_MALLOC char *SDLCALL SDL_strndup(const char *str, size_t maxlen);
|
|
extern DECLSPEC char *SDLCALL SDL_strrev(char *str);
|
|
extern DECLSPEC char *SDLCALL SDL_strupr(char *str);
|
|
extern DECLSPEC char *SDLCALL SDL_strlwr(char *str);
|
|
extern DECLSPEC char *SDLCALL SDL_strchr(const char *str, int c);
|
|
extern DECLSPEC char *SDLCALL SDL_strrchr(const char *str, int c);
|
|
extern DECLSPEC char *SDLCALL SDL_strstr(const char *haystack, const char *needle);
|
|
extern DECLSPEC char *SDLCALL SDL_strnstr(const char *haystack, const char *needle, size_t maxlen);
|
|
extern DECLSPEC char *SDLCALL SDL_strcasestr(const char *haystack, const char *needle);
|
|
extern DECLSPEC char *SDLCALL SDL_strtok_r(char *s1, const char *s2, char **saveptr);
|
|
extern DECLSPEC size_t SDLCALL SDL_utf8strlen(const char *str);
|
|
extern DECLSPEC size_t SDLCALL SDL_utf8strnlen(const char *str, size_t bytes);
|
|
|
|
extern DECLSPEC char *SDLCALL SDL_itoa(int value, char *str, int radix);
|
|
extern DECLSPEC char *SDLCALL SDL_uitoa(unsigned int value, char *str, int radix);
|
|
extern DECLSPEC char *SDLCALL SDL_ltoa(long value, char *str, int radix);
|
|
extern DECLSPEC char *SDLCALL SDL_ultoa(unsigned long value, char *str, int radix);
|
|
extern DECLSPEC char *SDLCALL SDL_lltoa(Sint64 value, char *str, int radix);
|
|
extern DECLSPEC char *SDLCALL SDL_ulltoa(Uint64 value, char *str, int radix);
|
|
|
|
extern DECLSPEC int SDLCALL SDL_atoi(const char *str);
|
|
extern DECLSPEC double SDLCALL SDL_atof(const char *str);
|
|
extern DECLSPEC long SDLCALL SDL_strtol(const char *str, char **endp, int base);
|
|
extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *str, char **endp, int base);
|
|
extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *str, char **endp, int base);
|
|
extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *str, char **endp, int base);
|
|
extern DECLSPEC double SDLCALL SDL_strtod(const char *str, char **endp);
|
|
|
|
extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
|
|
extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
|
|
extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
|
|
extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t len);
|
|
|
|
extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, ...) SDL_SCANF_VARARG_FUNC(2);
|
|
extern DECLSPEC int SDLCALL SDL_vsscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, va_list ap) SDL_SCANF_VARARG_FUNCV(2);
|
|
extern DECLSPEC int SDLCALL SDL_snprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, SDL_PRINTF_FORMAT_STRING const char *fmt, ... ) SDL_PRINTF_VARARG_FUNC(3);
|
|
extern DECLSPEC int SDLCALL SDL_swprintf(SDL_OUT_Z_CAP(maxlen) wchar_t *text, size_t maxlen, SDL_PRINTF_FORMAT_STRING const wchar_t *fmt, ... ) SDL_WPRINTF_VARARG_FUNC(3);
|
|
extern DECLSPEC int SDLCALL SDL_vsnprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, SDL_PRINTF_FORMAT_STRING const char *fmt, va_list ap) SDL_PRINTF_VARARG_FUNCV(3);
|
|
extern DECLSPEC int SDLCALL SDL_vswprintf(SDL_OUT_Z_CAP(maxlen) wchar_t *text, size_t maxlen, const wchar_t *fmt, va_list ap);
|
|
extern DECLSPEC int SDLCALL SDL_asprintf(char **strp, SDL_PRINTF_FORMAT_STRING const char *fmt, ...) SDL_PRINTF_VARARG_FUNC(2);
|
|
extern DECLSPEC int SDLCALL SDL_vasprintf(char **strp, SDL_PRINTF_FORMAT_STRING const char *fmt, va_list ap) SDL_PRINTF_VARARG_FUNCV(2);
|
|
|
|
#ifndef SDL_PI_D
|
|
#define SDL_PI_D 3.141592653589793238462643383279502884 /**< pi (double) */
|
|
#endif
|
|
#ifndef SDL_PI_F
|
|
#define SDL_PI_F 3.141592653589793238462643383279502884F /**< pi (float) */
|
|
#endif
|
|
|
|
/**
|
|
* Use this function to compute arc cosine of `x`.
|
|
*
|
|
* The definition of `y = acos(x)` is `x = cos(y)`.
|
|
*
|
|
* Domain: `-1 <= x <= 1`
|
|
*
|
|
* Range: `0 <= y <= Pi`
|
|
*
|
|
* \param x floating point value, in radians.
|
|
* \returns arc cosine of `x`.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*/
|
|
extern DECLSPEC double SDLCALL SDL_acos(double x);
|
|
extern DECLSPEC float SDLCALL SDL_acosf(float x);
|
|
extern DECLSPEC double SDLCALL SDL_asin(double x);
|
|
extern DECLSPEC float SDLCALL SDL_asinf(float x);
|
|
extern DECLSPEC double SDLCALL SDL_atan(double x);
|
|
extern DECLSPEC float SDLCALL SDL_atanf(float x);
|
|
extern DECLSPEC double SDLCALL SDL_atan2(double y, double x);
|
|
extern DECLSPEC float SDLCALL SDL_atan2f(float y, float x);
|
|
extern DECLSPEC double SDLCALL SDL_ceil(double x);
|
|
extern DECLSPEC float SDLCALL SDL_ceilf(float x);
|
|
extern DECLSPEC double SDLCALL SDL_copysign(double x, double y);
|
|
extern DECLSPEC float SDLCALL SDL_copysignf(float x, float y);
|
|
extern DECLSPEC double SDLCALL SDL_cos(double x);
|
|
extern DECLSPEC float SDLCALL SDL_cosf(float x);
|
|
extern DECLSPEC double SDLCALL SDL_exp(double x);
|
|
extern DECLSPEC float SDLCALL SDL_expf(float x);
|
|
extern DECLSPEC double SDLCALL SDL_fabs(double x);
|
|
extern DECLSPEC float SDLCALL SDL_fabsf(float x);
|
|
extern DECLSPEC double SDLCALL SDL_floor(double x);
|
|
extern DECLSPEC float SDLCALL SDL_floorf(float x);
|
|
extern DECLSPEC double SDLCALL SDL_trunc(double x);
|
|
extern DECLSPEC float SDLCALL SDL_truncf(float x);
|
|
extern DECLSPEC double SDLCALL SDL_fmod(double x, double y);
|
|
extern DECLSPEC float SDLCALL SDL_fmodf(float x, float y);
|
|
extern DECLSPEC double SDLCALL SDL_log(double x);
|
|
extern DECLSPEC float SDLCALL SDL_logf(float x);
|
|
extern DECLSPEC double SDLCALL SDL_log10(double x);
|
|
extern DECLSPEC float SDLCALL SDL_log10f(float x);
|
|
extern DECLSPEC double SDLCALL SDL_modf(double x, double *y);
|
|
extern DECLSPEC float SDLCALL SDL_modff(float x, float *y);
|
|
extern DECLSPEC double SDLCALL SDL_pow(double x, double y);
|
|
extern DECLSPEC float SDLCALL SDL_powf(float x, float y);
|
|
extern DECLSPEC double SDLCALL SDL_round(double x);
|
|
extern DECLSPEC float SDLCALL SDL_roundf(float x);
|
|
extern DECLSPEC long SDLCALL SDL_lround(double x);
|
|
extern DECLSPEC long SDLCALL SDL_lroundf(float x);
|
|
extern DECLSPEC double SDLCALL SDL_scalbn(double x, int n);
|
|
extern DECLSPEC float SDLCALL SDL_scalbnf(float x, int n);
|
|
extern DECLSPEC double SDLCALL SDL_sin(double x);
|
|
extern DECLSPEC float SDLCALL SDL_sinf(float x);
|
|
extern DECLSPEC double SDLCALL SDL_sqrt(double x);
|
|
extern DECLSPEC float SDLCALL SDL_sqrtf(float x);
|
|
extern DECLSPEC double SDLCALL SDL_tan(double x);
|
|
extern DECLSPEC float SDLCALL SDL_tanf(float x);
|
|
|
|
/* The SDL implementation of iconv() returns these error codes */
|
|
#define SDL_ICONV_ERROR (size_t)-1
|
|
#define SDL_ICONV_E2BIG (size_t)-2
|
|
#define SDL_ICONV_EILSEQ (size_t)-3
|
|
#define SDL_ICONV_EINVAL (size_t)-4
|
|
|
|
/* SDL_iconv_* are now always real symbols/types, not macros or inlined. */
|
|
typedef struct SDL_iconv_data_t *SDL_iconv_t;
|
|
extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode,
|
|
const char *fromcode);
|
|
extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
|
|
extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
|
|
size_t * inbytesleft, char **outbuf,
|
|
size_t * outbytesleft);
|
|
|
|
/**
|
|
* This function converts a buffer or string between encodings in one pass,
|
|
* returning a string that must be freed with SDL_free() or NULL on error.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*/
|
|
extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode,
|
|
const char *fromcode,
|
|
const char *inbuf,
|
|
size_t inbytesleft);
|
|
#define SDL_iconv_utf8_locale(S) SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
|
|
#define SDL_iconv_utf8_ucs2(S) (Uint16 *)SDL_iconv_string("UCS-2", "UTF-8", S, SDL_strlen(S)+1)
|
|
#define SDL_iconv_utf8_ucs4(S) (Uint32 *)SDL_iconv_string("UCS-4", "UTF-8", S, SDL_strlen(S)+1)
|
|
#define SDL_iconv_wchar_utf8(S) SDL_iconv_string("UTF-8", "WCHAR_T", (char *)S, (SDL_wcslen(S)+1)*sizeof(wchar_t))
|
|
|
|
/* force builds using Clang's static analysis tools to use literal C runtime
|
|
here, since there are possibly tests that are ineffective otherwise. */
|
|
#if defined(__clang_analyzer__) && !defined(SDL_DISABLE_ANALYZE_MACROS)
|
|
|
|
/* The analyzer knows about strlcpy even when the system doesn't provide it */
|
|
#if !defined(HAVE_STRLCPY) && !defined(strlcpy)
|
|
size_t strlcpy(char* dst, const char* src, size_t size);
|
|
#endif
|
|
|
|
/* The analyzer knows about strlcat even when the system doesn't provide it */
|
|
#if !defined(HAVE_STRLCAT) && !defined(strlcat)
|
|
size_t strlcat(char* dst, const char* src, size_t size);
|
|
#endif
|
|
|
|
#if !defined(HAVE_WCSLCPY) && !defined(wcslcpy)
|
|
size_t wcslcpy(wchar_t *dst, const wchar_t *src, size_t size);
|
|
#endif
|
|
|
|
#if !defined(HAVE_WCSLCAT) && !defined(wcslcat)
|
|
size_t wcslcat(wchar_t *dst, const wchar_t *src, size_t size);
|
|
#endif
|
|
|
|
/* Starting LLVM 16, the analyser errors out if these functions do not have
|
|
their prototype defined (clang-diagnostic-implicit-function-declaration) */
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
|
|
#define SDL_malloc malloc
|
|
#define SDL_calloc calloc
|
|
#define SDL_realloc realloc
|
|
#define SDL_free free
|
|
#ifndef SDL_memcpy
|
|
#define SDL_memcpy memcpy
|
|
#endif
|
|
#ifndef SDL_memmove
|
|
#define SDL_memmove memmove
|
|
#endif
|
|
#ifndef SDL_memset
|
|
#define SDL_memset memset
|
|
#endif
|
|
#define SDL_memcmp memcmp
|
|
#define SDL_strlcpy strlcpy
|
|
#define SDL_strlcat strlcat
|
|
#define SDL_strlen strlen
|
|
#define SDL_wcslen wcslen
|
|
#define SDL_wcslcpy wcslcpy
|
|
#define SDL_wcslcat wcslcat
|
|
#define SDL_strdup strdup
|
|
#define SDL_wcsdup wcsdup
|
|
#define SDL_strchr strchr
|
|
#define SDL_strrchr strrchr
|
|
#define SDL_strstr strstr
|
|
#define SDL_wcsstr wcsstr
|
|
#define SDL_strtok_r strtok_r
|
|
#define SDL_strcmp strcmp
|
|
#define SDL_wcscmp wcscmp
|
|
#define SDL_strncmp strncmp
|
|
#define SDL_wcsncmp wcsncmp
|
|
#define SDL_strcasecmp strcasecmp
|
|
#define SDL_strncasecmp strncasecmp
|
|
#define SDL_sscanf sscanf
|
|
#define SDL_vsscanf vsscanf
|
|
#define SDL_snprintf snprintf
|
|
#define SDL_vsnprintf vsnprintf
|
|
#endif
|
|
|
|
/**
|
|
* If a * b would overflow, return -1. Otherwise store a * b via ret
|
|
* and return 0.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*/
|
|
SDL_FORCE_INLINE int SDL_size_mul_overflow (size_t a,
|
|
size_t b,
|
|
size_t *ret)
|
|
{
|
|
if (a != 0 && b > SDL_SIZE_MAX / a) {
|
|
return -1;
|
|
}
|
|
*ret = a * b;
|
|
return 0;
|
|
}
|
|
|
|
#if SDL_HAS_BUILTIN(__builtin_mul_overflow)
|
|
/* This needs to be wrapped in an inline rather than being a direct #define,
|
|
* because __builtin_mul_overflow() is type-generic, but we want to be
|
|
* consistent about interpreting a and b as size_t. */
|
|
SDL_FORCE_INLINE int SDL_size_mul_overflow_builtin (size_t a,
|
|
size_t b,
|
|
size_t *ret)
|
|
{
|
|
return __builtin_mul_overflow(a, b, ret) == 0 ? 0 : -1;
|
|
}
|
|
#define SDL_size_mul_overflow(a, b, ret) (SDL_size_mul_overflow_builtin(a, b, ret))
|
|
#endif
|
|
|
|
/**
|
|
* If a + b would overflow, return -1. Otherwise store a + b via ret
|
|
* and return 0.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*/
|
|
SDL_FORCE_INLINE int SDL_size_add_overflow (size_t a,
|
|
size_t b,
|
|
size_t *ret)
|
|
{
|
|
if (b > SDL_SIZE_MAX - a) {
|
|
return -1;
|
|
}
|
|
*ret = a + b;
|
|
return 0;
|
|
}
|
|
|
|
#if SDL_HAS_BUILTIN(__builtin_add_overflow)
|
|
/* This needs to be wrapped in an inline rather than being a direct #define,
|
|
* the same as the call to __builtin_mul_overflow() above. */
|
|
SDL_FORCE_INLINE int SDL_size_add_overflow_builtin (size_t a,
|
|
size_t b,
|
|
size_t *ret)
|
|
{
|
|
return __builtin_add_overflow(a, b, ret) == 0 ? 0 : -1;
|
|
}
|
|
#define SDL_size_add_overflow(a, b, ret) (SDL_size_add_overflow_builtin(a, b, ret))
|
|
#endif
|
|
|
|
/* This is a generic function pointer which should be cast to the type you expect */
|
|
#ifdef SDL_FUNCTION_POINTER_IS_VOID_POINTER
|
|
typedef void *SDL_FunctionPointer;
|
|
#else
|
|
typedef void (*SDL_FunctionPointer)(void);
|
|
#endif
|
|
|
|
/* Ends C function definitions when using C++ */
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#include <SDL3/SDL_close_code.h>
|
|
|
|
#endif /* SDL_stdinc_h_ */
|