mirror of
https://github.com/Relintai/sdl2_frt.git
synced 2024-12-20 22:16:49 +01:00
24c86b5501
since the window system doesn't do it for us like other platforms. This prevents sticky keys and missed keys when going in and out of focus, for example Alt would appear to stick if switching away from an SDL app with Alt-Tab and had to be pressed again. CR: Sam
474 lines
16 KiB
C
474 lines
16 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2014 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 "SDL_config.h"
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#ifdef HAVE_STDIO_H
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#include <stdio.h>
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#endif
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#if defined(STDC_HEADERS)
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# include <stdlib.h>
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# include <stddef.h>
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# include <stdarg.h>
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#else
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# if defined(HAVE_STDLIB_H)
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# include <stdlib.h>
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# elif defined(HAVE_MALLOC_H)
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# include <malloc.h>
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# endif
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# if defined(HAVE_STDDEF_H)
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# include <stddef.h>
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# endif
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# if defined(HAVE_STDARG_H)
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# include <stdarg.h>
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# endif
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#endif
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#ifdef HAVE_STRING_H
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# if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
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# include <memory.h>
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# endif
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#if defined(HAVE_INTTYPES_H)
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# include <inttypes.h>
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#elif defined(HAVE_STDINT_H)
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# include <stdint.h>
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#endif
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#ifdef HAVE_CTYPE_H
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# include <ctype.h>
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#endif
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#ifdef HAVE_MATH_H
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# if defined(__WINRT__)
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/* Defining _USE_MATH_DEFINES is required to get M_PI to be defined on
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WinRT. See http://msdn.microsoft.com/en-us/library/4hwaceh6.aspx
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for more information.
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*/
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# define _USE_MATH_DEFINES
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# endif
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# include <math.h>
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#endif
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#ifdef HAVE_FLOAT_H
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# include <float.h>
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#endif
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#if defined(HAVE_ICONV) && defined(HAVE_ICONV_H)
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# include <iconv.h>
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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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* \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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typedef enum
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{
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SDL_FALSE = 0,
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SDL_TRUE = 1
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} SDL_bool;
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/**
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* \brief A signed 8-bit integer type.
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*/
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typedef int8_t Sint8;
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/**
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* \brief An unsigned 8-bit integer type.
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*/
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typedef uint8_t Uint8;
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/**
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* \brief A signed 16-bit integer type.
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*/
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typedef int16_t Sint16;
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/**
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* \brief An unsigned 16-bit integer type.
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*/
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typedef uint16_t Uint16;
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/**
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* \brief A signed 32-bit integer type.
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*/
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typedef int32_t Sint32;
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/**
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* \brief An unsigned 32-bit integer type.
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*/
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typedef uint32_t Uint32;
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/**
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* \brief A signed 64-bit integer type.
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*/
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typedef int64_t Sint64;
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/**
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* \brief An unsigned 64-bit integer type.
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*/
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typedef uint64_t Uint64;
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/* @} *//* Basic data types */
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/* Make sure we have macros for printing 64 bit values.
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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(__WIN32__)
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#define SDL_PRIs64 "I64"
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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(__WIN32__)
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#define SDL_PRIu64 "I64u"
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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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/* 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_SCANF_VARARG_FUNC( fmtargnumber )
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#else
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#if _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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#if defined(__GNUC__)
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#define SDL_PRINTF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __printf__, fmtargnumber, fmtargnumber+1 )))
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#define SDL_SCANF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __scanf__, fmtargnumber, fmtargnumber+1 )))
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#else
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#define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
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#define SDL_SCANF_VARARG_FUNC( fmtargnumber )
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#endif
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#endif /* SDL_DISABLE_ANALYZE_MACROS */
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#define SDL_COMPILE_TIME_ASSERT(name, x) \
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typedef int SDL_dummy_ ## name[(x) * 2 - 1]
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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(__ANDROID__)
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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 "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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#if defined(HAVE_ALLOCA) && !defined(alloca)
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# if defined(HAVE_ALLOCA_H)
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# include <alloca.h>
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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(__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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#ifdef HAVE_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 void *SDLCALL SDL_malloc(size_t size);
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extern DECLSPEC void *SDLCALL SDL_calloc(size_t nmemb, size_t size);
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extern DECLSPEC 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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extern DECLSPEC char *SDLCALL SDL_getenv(const char *name);
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extern DECLSPEC int SDLCALL SDL_setenv(const char *name, const char *value, int overwrite);
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extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size, int (*compare) (const void *, const void *));
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extern DECLSPEC int SDLCALL SDL_abs(int x);
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/* !!! FIXME: these have side effects. You probably shouldn't use them. */
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/* !!! FIXME: Maybe we do forceinline functions of SDL_mini, SDL_minf, etc? */
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#define SDL_min(x, y) (((x) < (y)) ? (x) : (y))
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#define SDL_max(x, y) (((x) > (y)) ? (x) : (y))
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extern DECLSPEC int SDLCALL SDL_isdigit(int x);
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extern DECLSPEC int SDLCALL SDL_isspace(int x);
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extern DECLSPEC int SDLCALL SDL_toupper(int x);
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extern DECLSPEC int SDLCALL SDL_tolower(int x);
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extern DECLSPEC void *SDLCALL SDL_memset(SDL_OUT_BYTECAP(len) void *dst, int c, size_t len);
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#define SDL_zero(x) SDL_memset(&(x), 0, sizeof((x)))
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#define SDL_zerop(x) SDL_memset((x), 0, sizeof(*(x)))
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/* Note that memset() is a byte assignment and this is a 32-bit assignment, so they're not directly equivalent. */
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SDL_FORCE_INLINE void SDL_memset4(void *dst, Uint32 val, size_t dwords)
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{
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#if defined(__GNUC__) && defined(i386)
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int u0, u1, u2;
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__asm__ __volatile__ (
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"cld \n\t"
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"rep ; stosl \n\t"
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: "=&D" (u0), "=&a" (u1), "=&c" (u2)
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: "0" (dst), "1" (val), "2" (SDL_static_cast(Uint32, dwords))
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: "memory"
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);
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#else
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size_t _n = (dwords + 3) / 4;
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Uint32 *_p = SDL_static_cast(Uint32 *, dst);
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Uint32 _val = (val);
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if (dwords == 0)
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return;
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switch (dwords % 4)
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{
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case 0: do { *_p++ = _val;
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case 3: *_p++ = _val;
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case 2: *_p++ = _val;
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case 1: *_p++ = _val;
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} while ( --_n );
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}
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#endif
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}
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extern DECLSPEC void *SDLCALL SDL_memcpy(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
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SDL_FORCE_INLINE void *SDL_memcpy4(SDL_OUT_BYTECAP(dwords*4) void *dst, SDL_IN_BYTECAP(dwords*4) const void *src, size_t dwords)
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{
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return SDL_memcpy(dst, src, dwords * 4);
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}
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extern DECLSPEC void *SDLCALL SDL_memmove(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
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extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
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extern DECLSPEC size_t SDLCALL SDL_wcslen(const wchar_t *wstr);
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extern DECLSPEC size_t SDLCALL SDL_wcslcpy(SDL_OUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
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extern DECLSPEC size_t SDLCALL SDL_wcslcat(SDL_INOUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
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extern DECLSPEC size_t SDLCALL SDL_strlen(const char *str);
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extern DECLSPEC size_t SDLCALL SDL_strlcpy(SDL_OUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
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extern DECLSPEC size_t SDLCALL SDL_utf8strlcpy(SDL_OUT_Z_CAP(dst_bytes) char *dst, const char *src, size_t dst_bytes);
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extern DECLSPEC size_t SDLCALL SDL_strlcat(SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
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extern DECLSPEC char *SDLCALL SDL_strdup(const char *str);
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extern DECLSPEC char *SDLCALL SDL_strrev(char *str);
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extern DECLSPEC char *SDLCALL SDL_strupr(char *str);
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extern DECLSPEC char *SDLCALL SDL_strlwr(char *str);
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extern DECLSPEC char *SDLCALL SDL_strchr(const char *str, int c);
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extern DECLSPEC char *SDLCALL SDL_strrchr(const char *str, int c);
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extern DECLSPEC char *SDLCALL SDL_strstr(const char *haystack, const char *needle);
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extern DECLSPEC char *SDLCALL SDL_itoa(int value, char *str, int radix);
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extern DECLSPEC char *SDLCALL SDL_uitoa(unsigned int value, char *str, int radix);
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extern DECLSPEC char *SDLCALL SDL_ltoa(long value, char *str, int radix);
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extern DECLSPEC char *SDLCALL SDL_ultoa(unsigned long value, char *str, int radix);
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extern DECLSPEC char *SDLCALL SDL_lltoa(Sint64 value, char *str, int radix);
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extern DECLSPEC char *SDLCALL SDL_ulltoa(Uint64 value, char *str, int radix);
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extern DECLSPEC int SDLCALL SDL_atoi(const char *str);
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extern DECLSPEC double SDLCALL SDL_atof(const char *str);
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extern DECLSPEC long SDLCALL SDL_strtol(const char *str, char **endp, int base);
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extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *str, char **endp, int base);
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extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *str, char **endp, int base);
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extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *str, char **endp, int base);
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extern DECLSPEC double SDLCALL SDL_strtod(const char *str, char **endp);
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extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
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extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
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extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
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extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t len);
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extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, ...) SDL_SCANF_VARARG_FUNC(2);
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extern DECLSPEC int SDLCALL SDL_vsscanf(const char *text, const char *fmt, va_list ap);
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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);
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extern DECLSPEC int SDLCALL SDL_vsnprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, const char *fmt, va_list ap);
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#ifndef HAVE_M_PI
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#ifndef M_PI
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#define M_PI 3.14159265358979323846264338327950288 /* pi */
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#endif
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#endif
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extern DECLSPEC double SDLCALL SDL_acos(double x);
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extern DECLSPEC double SDLCALL SDL_asin(double x);
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extern DECLSPEC double SDLCALL SDL_atan(double x);
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extern DECLSPEC double SDLCALL SDL_atan2(double x, double y);
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extern DECLSPEC double SDLCALL SDL_ceil(double x);
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extern DECLSPEC double SDLCALL SDL_copysign(double x, double y);
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extern DECLSPEC double SDLCALL SDL_cos(double x);
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extern DECLSPEC float SDLCALL SDL_cosf(float x);
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extern DECLSPEC double SDLCALL SDL_fabs(double x);
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extern DECLSPEC double SDLCALL SDL_floor(double x);
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extern DECLSPEC double SDLCALL SDL_log(double x);
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extern DECLSPEC double SDLCALL SDL_pow(double x, double y);
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extern DECLSPEC double SDLCALL SDL_scalbn(double x, int n);
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extern DECLSPEC double SDLCALL SDL_sin(double x);
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extern DECLSPEC float SDLCALL SDL_sinf(float x);
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extern DECLSPEC double SDLCALL SDL_sqrt(double x);
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extern DECLSPEC float SDLCALL SDL_sqrtf(float x);
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extern DECLSPEC double SDLCALL SDL_tan(double x);
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extern DECLSPEC float SDLCALL SDL_tanf(float x);
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/* The SDL implementation of iconv() returns these error codes */
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#define SDL_ICONV_ERROR (size_t)-1
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#define SDL_ICONV_E2BIG (size_t)-2
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#define SDL_ICONV_EILSEQ (size_t)-3
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#define SDL_ICONV_EINVAL (size_t)-4
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/* SDL_iconv_* are now always real symbols/types, not macros or inlined. */
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typedef struct _SDL_iconv_t *SDL_iconv_t;
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extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode,
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const char *fromcode);
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extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
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extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
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size_t * inbytesleft, char **outbuf,
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size_t * outbytesleft);
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/**
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* This function converts a string between encodings in one pass, returning a
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* string that must be freed with SDL_free() or NULL on error.
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*/
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extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode,
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const char *fromcode,
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const char *inbuf,
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size_t inbytesleft);
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#define SDL_iconv_utf8_locale(S) SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
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#define SDL_iconv_utf8_ucs2(S) (Uint16 *)SDL_iconv_string("UCS-2-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
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#define SDL_iconv_utf8_ucs4(S) (Uint32 *)SDL_iconv_string("UCS-4-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
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/* Ends C function definitions when using C++ */
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#ifdef __cplusplus
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}
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#endif
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#include "close_code.h"
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#endif /* _SDL_stdinc_h */
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/* vi: set ts=4 sw=4 expandtab: */
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