diff options
Diffstat (limited to 'dependencies/include/SDL/SDL_stdinc.h')
| -rw-r--r-- | dependencies/include/SDL/SDL_stdinc.h | 830 |
1 files changed, 830 insertions, 0 deletions
diff --git a/dependencies/include/SDL/SDL_stdinc.h b/dependencies/include/SDL/SDL_stdinc.h new file mode 100644 index 0000000..70dba7d --- /dev/null +++ b/dependencies/include/SDL/SDL_stdinc.h @@ -0,0 +1,830 @@ +/* + Simple DirectMedia Layer + Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org> + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. +*/ + +/** + * \file SDL_stdinc.h + * + * This is a general header that includes C language support. + */ + +#ifndef SDL_stdinc_h_ +#define SDL_stdinc_h_ + +#include "SDL_config.h" + +#ifdef __APPLE__ +#ifndef _DARWIN_C_SOURCE +#define _DARWIN_C_SOURCE 1 /* for memset_pattern4() */ +#endif +#endif + +#ifdef HAVE_SYS_TYPES_H +#include <sys/types.h> +#endif +#ifdef HAVE_STDIO_H +#include <stdio.h> +#endif +#if defined(STDC_HEADERS) +# include <stdlib.h> +# include <stddef.h> +# include <stdarg.h> +#else +# if defined(HAVE_STDLIB_H) +# include <stdlib.h> +# elif defined(HAVE_MALLOC_H) +# include <malloc.h> +# endif +# if defined(HAVE_STDDEF_H) +# include <stddef.h> +# endif +# if defined(HAVE_STDARG_H) +# include <stdarg.h> +# endif +#endif +#ifdef HAVE_STRING_H +# if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H) +# include <memory.h> +# endif +# include <string.h> +#endif +#ifdef HAVE_STRINGS_H +# include <strings.h> +#endif +#ifdef HAVE_WCHAR_H +# include <wchar.h> +#endif +#if defined(HAVE_INTTYPES_H) +# include <inttypes.h> +#elif defined(HAVE_STDINT_H) +# include <stdint.h> +#endif +#ifdef HAVE_CTYPE_H +# include <ctype.h> +#endif +#ifdef HAVE_MATH_H +# if defined(_MSC_VER) +/* Defining _USE_MATH_DEFINES is required to get M_PI to be defined on + Visual Studio. See http://msdn.microsoft.com/en-us/library/4hwaceh6.aspx + for more information. +*/ +# define _USE_MATH_DEFINES +# endif +# include <math.h> +#endif +#ifdef HAVE_FLOAT_H +# include <float.h> +#endif +#if defined(HAVE_ALLOCA) && !defined(alloca) +# if defined(HAVE_ALLOCA_H) +# include <alloca.h> +# elif defined(__GNUC__) +# define alloca __builtin_alloca +# elif defined(_MSC_VER) +# include <malloc.h> +# define alloca _alloca +# elif defined(__WATCOMC__) +# include <malloc.h> +# elif defined(__BORLANDC__) +# include <malloc.h> +# elif defined(__DMC__) +# include <stdlib.h> +# elif defined(__AIX__) +#pragma alloca +# elif defined(__MRC__) +void *alloca(unsigned); +# else +char *alloca(); +# endif +#endif + +#ifdef SIZE_MAX +# define SDL_SIZE_MAX SIZE_MAX +#else +# define SDL_SIZE_MAX ((size_t) -1) +#endif + +/** + * Check if the compiler supports a given builtin. + * Supported by virtually all clang versions and recent gcc. Use this + * instead of checking the clang version if possible. + */ +#ifdef __has_builtin +#define _SDL_HAS_BUILTIN(x) __has_builtin(x) +#else +#define _SDL_HAS_BUILTIN(x) 0 +#endif + +/** + * The number of elements in an array. + */ +#define SDL_arraysize(array) (sizeof(array)/sizeof(array[0])) +#define SDL_TABLESIZE(table) SDL_arraysize(table) + +/** + * Macro useful for building other macros with strings in them + * + * e.g. #define LOG_ERROR(X) OutputDebugString(SDL_STRINGIFY_ARG(__FUNCTION__) ": " X "\n") + */ +#define SDL_STRINGIFY_ARG(arg) #arg + +/** + * \name Cast operators + * + * Use proper C++ casts when compiled as C++ to be compatible with the option + * -Wold-style-cast of GCC (and -Werror=old-style-cast in GCC 4.2 and above). + */ +/* @{ */ +#ifdef __cplusplus +#define SDL_reinterpret_cast(type, expression) reinterpret_cast<type>(expression) +#define SDL_static_cast(type, expression) static_cast<type>(expression) +#define SDL_const_cast(type, expression) const_cast<type>(expression) +#else +#define SDL_reinterpret_cast(type, expression) ((type)(expression)) +#define SDL_static_cast(type, expression) ((type)(expression)) +#define SDL_const_cast(type, expression) ((type)(expression)) +#endif +/* @} *//* Cast operators */ + +/* Define a four character code as a Uint32 */ +#define SDL_FOURCC(A, B, C, D) \ + ((SDL_static_cast(Uint32, SDL_static_cast(Uint8, (A))) << 0) | \ + (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (B))) << 8) | \ + (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (C))) << 16) | \ + (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (D))) << 24)) + +/** + * \name Basic data types + */ +/* @{ */ + +#ifdef __CC_ARM +/* ARM's compiler throws warnings if we use an enum: like "SDL_bool x = a < b;" */ +#define SDL_FALSE 0 +#define SDL_TRUE 1 +typedef int SDL_bool; +#else +typedef enum +{ + SDL_FALSE = 0, + SDL_TRUE = 1 +} SDL_bool; +#endif + +/** + * \brief A signed 8-bit integer type. + */ +#define SDL_MAX_SINT8 ((Sint8)0x7F) /* 127 */ +#define SDL_MIN_SINT8 ((Sint8)(~0x7F)) /* -128 */ +typedef int8_t Sint8; +/** + * \brief An unsigned 8-bit integer type. + */ +#define SDL_MAX_UINT8 ((Uint8)0xFF) /* 255 */ +#define SDL_MIN_UINT8 ((Uint8)0x00) /* 0 */ +typedef uint8_t Uint8; +/** + * \brief A signed 16-bit integer type. + */ +#define SDL_MAX_SINT16 ((Sint16)0x7FFF) /* 32767 */ +#define SDL_MIN_SINT16 ((Sint16)(~0x7FFF)) /* -32768 */ +typedef int16_t Sint16; +/** + * \brief An unsigned 16-bit integer type. + */ +#define SDL_MAX_UINT16 ((Uint16)0xFFFF) /* 65535 */ +#define SDL_MIN_UINT16 ((Uint16)0x0000) /* 0 */ +typedef uint16_t Uint16; +/** + * \brief A signed 32-bit integer type. + */ +#define SDL_MAX_SINT32 ((Sint32)0x7FFFFFFF) /* 2147483647 */ +#define SDL_MIN_SINT32 ((Sint32)(~0x7FFFFFFF)) /* -2147483648 */ +typedef int32_t Sint32; +/** + * \brief An unsigned 32-bit integer type. + */ +#define SDL_MAX_UINT32 ((Uint32)0xFFFFFFFFu) /* 4294967295 */ +#define SDL_MIN_UINT32 ((Uint32)0x00000000) /* 0 */ +typedef uint32_t Uint32; + +/** + * \brief A signed 64-bit integer type. + */ +#define SDL_MAX_SINT64 ((Sint64)0x7FFFFFFFFFFFFFFFll) /* 9223372036854775807 */ +#define SDL_MIN_SINT64 ((Sint64)(~0x7FFFFFFFFFFFFFFFll)) /* -9223372036854775808 */ +typedef int64_t Sint64; +/** + * \brief An unsigned 64-bit integer type. + */ +#define SDL_MAX_UINT64 ((Uint64)0xFFFFFFFFFFFFFFFFull) /* 18446744073709551615 */ +#define SDL_MIN_UINT64 ((Uint64)(0x0000000000000000ull)) /* 0 */ +typedef uint64_t Uint64; + +/* @} *//* Basic data types */ + +/** + * \name Floating-point constants + */ +/* @{ */ + +#ifdef FLT_EPSILON +#define SDL_FLT_EPSILON FLT_EPSILON +#else +#define SDL_FLT_EPSILON 1.1920928955078125e-07F /* 0x0.000002p0 */ +#endif + +/* @} *//* Floating-point constants */ + +/* Make sure we have macros for printing width-based integers. + * <stdint.h> should define these but this is not true all platforms. + * (for example win32) */ +#ifndef SDL_PRIs64 +#ifdef PRIs64 +#define SDL_PRIs64 PRIs64 +#elif defined(__WIN32__) || defined(__GDK__) +#define SDL_PRIs64 "I64d" +#elif defined(__LINUX__) && defined(__LP64__) +#define SDL_PRIs64 "ld" +#else +#define SDL_PRIs64 "lld" +#endif +#endif +#ifndef SDL_PRIu64 +#ifdef PRIu64 +#define SDL_PRIu64 PRIu64 +#elif defined(__WIN32__) || defined(__GDK__) +#define SDL_PRIu64 "I64u" +#elif defined(__LINUX__) && defined(__LP64__) +#define SDL_PRIu64 "lu" +#else +#define SDL_PRIu64 "llu" +#endif +#endif +#ifndef SDL_PRIx64 +#ifdef PRIx64 +#define SDL_PRIx64 PRIx64 +#elif defined(__WIN32__) || defined(__GDK__) +#define SDL_PRIx64 "I64x" +#elif defined(__LINUX__) && defined(__LP64__) +#define SDL_PRIx64 "lx" +#else +#define SDL_PRIx64 "llx" +#endif +#endif +#ifndef SDL_PRIX64 +#ifdef PRIX64 +#define SDL_PRIX64 PRIX64 +#elif defined(__WIN32__) || defined(__GDK__) +#define SDL_PRIX64 "I64X" +#elif defined(__LINUX__) && defined(__LP64__) +#define SDL_PRIX64 "lX" +#else +#define SDL_PRIX64 "llX" +#endif +#endif +#ifndef SDL_PRIs32 +#ifdef PRId32 +#define SDL_PRIs32 PRId32 +#else +#define SDL_PRIs32 "d" +#endif +#endif +#ifndef SDL_PRIu32 +#ifdef PRIu32 +#define SDL_PRIu32 PRIu32 +#else +#define SDL_PRIu32 "u" +#endif +#endif +#ifndef SDL_PRIx32 +#ifdef PRIx32 +#define SDL_PRIx32 PRIx32 +#else +#define SDL_PRIx32 "x" +#endif +#endif +#ifndef SDL_PRIX32 +#ifdef PRIX32 +#define SDL_PRIX32 PRIX32 +#else +#define SDL_PRIX32 "X" +#endif +#endif + +/* Annotations to help code analysis tools */ +#ifdef SDL_DISABLE_ANALYZE_MACROS +#define SDL_IN_BYTECAP(x) +#define SDL_INOUT_Z_CAP(x) +#define SDL_OUT_Z_CAP(x) +#define SDL_OUT_CAP(x) +#define SDL_OUT_BYTECAP(x) +#define SDL_OUT_Z_BYTECAP(x) +#define SDL_PRINTF_FORMAT_STRING +#define SDL_SCANF_FORMAT_STRING +#define SDL_PRINTF_VARARG_FUNC( fmtargnumber ) +#define SDL_SCANF_VARARG_FUNC( fmtargnumber ) +#else +#if defined(_MSC_VER) && (_MSC_VER >= 1600) /* VS 2010 and above */ +#include <sal.h> + +#define SDL_IN_BYTECAP(x) _In_bytecount_(x) +#define SDL_INOUT_Z_CAP(x) _Inout_z_cap_(x) +#define SDL_OUT_Z_CAP(x) _Out_z_cap_(x) +#define SDL_OUT_CAP(x) _Out_cap_(x) +#define SDL_OUT_BYTECAP(x) _Out_bytecap_(x) +#define SDL_OUT_Z_BYTECAP(x) _Out_z_bytecap_(x) + +#define SDL_PRINTF_FORMAT_STRING _Printf_format_string_ +#define SDL_SCANF_FORMAT_STRING _Scanf_format_string_impl_ +#else +#define SDL_IN_BYTECAP(x) +#define SDL_INOUT_Z_CAP(x) +#define SDL_OUT_Z_CAP(x) +#define SDL_OUT_CAP(x) +#define SDL_OUT_BYTECAP(x) +#define SDL_OUT_Z_BYTECAP(x) +#define SDL_PRINTF_FORMAT_STRING +#define SDL_SCANF_FORMAT_STRING +#endif +#if defined(__GNUC__) +#define SDL_PRINTF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __printf__, fmtargnumber, fmtargnumber+1 ))) +#define SDL_SCANF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __scanf__, fmtargnumber, fmtargnumber+1 ))) +#else +#define SDL_PRINTF_VARARG_FUNC( fmtargnumber ) +#define SDL_SCANF_VARARG_FUNC( fmtargnumber ) +#endif +#endif /* SDL_DISABLE_ANALYZE_MACROS */ + +#ifndef SDL_COMPILE_TIME_ASSERT +#if defined(__cplusplus) +#if (__cplusplus >= 201103L) +#define SDL_COMPILE_TIME_ASSERT(name, x) static_assert(x, #x) +#endif +#elif defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L) +#define SDL_COMPILE_TIME_ASSERT(name, x) _Static_assert(x, #x) +#endif +#endif /* !SDL_COMPILE_TIME_ASSERT */ + +#ifndef SDL_COMPILE_TIME_ASSERT +/* universal, but may trigger -Wunused-local-typedefs */ +#define SDL_COMPILE_TIME_ASSERT(name, x) \ + typedef int SDL_compile_time_assert_ ## name[(x) * 2 - 1] +#endif + +/** \cond */ +#ifndef DOXYGEN_SHOULD_IGNORE_THIS +SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1); +SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1); +SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2); +SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2); +SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4); +SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4); +SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8); +SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8); +#endif /* DOXYGEN_SHOULD_IGNORE_THIS */ +/** \endcond */ + +/* Check to make sure enums are the size of ints, for structure packing. + For both Watcom C/C++ and Borland C/C++ the compiler option that makes + enums having the size of an int must be enabled. + This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11). +*/ + +/** \cond */ +#ifndef DOXYGEN_SHOULD_IGNORE_THIS +#if !defined(__ANDROID__) && !defined(__VITA__) && !defined(__3DS__) + /* TODO: include/SDL_stdinc.h:174: error: size of array 'SDL_dummy_enum' is negative */ +typedef enum +{ + DUMMY_ENUM_VALUE +} SDL_DUMMY_ENUM; + +SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int)); +#endif +#endif /* DOXYGEN_SHOULD_IGNORE_THIS */ +/** \endcond */ + +#include "begin_code.h" +/* Set up for C function definitions, even when using C++ */ +#ifdef __cplusplus +extern "C" { +#endif + +#ifdef HAVE_ALLOCA +#define SDL_stack_alloc(type, count) (type*)alloca(sizeof(type)*(count)) +#define SDL_stack_free(data) +#else +#define SDL_stack_alloc(type, count) (type*)SDL_malloc(sizeof(type)*(count)) +#define SDL_stack_free(data) SDL_free(data) +#endif + +extern DECLSPEC void *SDLCALL SDL_malloc(size_t size); +extern DECLSPEC void *SDLCALL SDL_calloc(size_t nmemb, size_t size); +extern DECLSPEC void *SDLCALL SDL_realloc(void *mem, size_t size); +extern DECLSPEC void SDLCALL SDL_free(void *mem); + +typedef void *(SDLCALL *SDL_malloc_func)(size_t size); +typedef void *(SDLCALL *SDL_calloc_func)(size_t nmemb, size_t size); +typedef void *(SDLCALL *SDL_realloc_func)(void *mem, size_t size); +typedef void (SDLCALL *SDL_free_func)(void *mem); + +/** + * Get the original set of SDL memory functions + * + * \since This function is available since SDL 2.24.0. + */ +extern DECLSPEC void SDLCALL SDL_GetOriginalMemoryFunctions(SDL_malloc_func *malloc_func, + SDL_calloc_func *calloc_func, + SDL_realloc_func *realloc_func, + SDL_free_func *free_func); + +/** + * Get the current set of SDL memory functions + * + * \since This function is available since SDL 2.0.7. + */ +extern DECLSPEC void SDLCALL SDL_GetMemoryFunctions(SDL_malloc_func *malloc_func, + SDL_calloc_func *calloc_func, + SDL_realloc_func *realloc_func, + SDL_free_func *free_func); + +/** + * Replace SDL's memory allocation functions with a custom set + * + * \since This function is available since SDL 2.0.7. + */ +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); + +/** + * Get the number of outstanding (unfreed) allocations + * + * \since This function is available since SDL 2.0.7. + */ +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 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_memset(SDL_OUT_BYTECAP(len) void *dst, int c, size_t len); + +#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))) + +#define SDL_copyp(dst, src) \ + { SDL_COMPILE_TIME_ASSERT(SDL_copyp, sizeof (*(dst)) == sizeof (*(src))); } \ + SDL_memcpy((dst), (src), sizeof (*(src))) + + +/* Note that memset() is a byte assignment and this is a 32-bit assignment, so they're not directly equivalent. */ +SDL_FORCE_INLINE void SDL_memset4(void *dst, Uint32 val, size_t dwords) +{ +#ifdef __APPLE__ + memset_pattern4(dst, &val, dwords * 4); +#elif defined(__GNUC__) && defined(__i386__) + int u0, u1, u2; + __asm__ __volatile__ ( + "cld \n\t" + "rep ; stosl \n\t" + : "=&D" (u0), "=&a" (u1), "=&c" (u2) + : "0" (dst), "1" (val), "2" (SDL_static_cast(Uint32, dwords)) + : "memory" + ); +#else + size_t _n = (dwords + 3) / 4; + Uint32 *_p = SDL_static_cast(Uint32 *, dst); + Uint32 _val = (val); + if (dwords == 0) { + return; + } + switch (dwords % 4) { + case 0: do { *_p++ = _val; SDL_FALLTHROUGH; + case 3: *_p++ = _val; SDL_FALLTHROUGH; + case 2: *_p++ = _val; SDL_FALLTHROUGH; + case 1: *_p++ = _val; + } while ( --_n ); + } +#endif +} + +extern DECLSPEC void *SDLCALL SDL_memcpy(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len); + +extern DECLSPEC void *SDLCALL SDL_memmove(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len); +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_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 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 size_t SDLCALL SDL_strlen(const char *str); +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 char *SDLCALL SDL_strdup(const char *str); +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_strcasestr(const char *haystack, const char *needle); +extern DECLSPEC char *SDLCALL SDL_strtokr(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, const char *fmt, va_list ap); +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_vsnprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, const char *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, const char *fmt, va_list ap); + +#ifndef HAVE_M_PI +#ifndef M_PI +#define M_PI 3.14159265358979323846264338327950288 /**< pi */ +#endif +#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 2.0.2. + */ +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_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_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 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 2.0.0. + */ +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-INTERNAL", "UTF-8", S, SDL_strlen(S)+1) +#define SDL_iconv_utf8_ucs4(S) (Uint32 *)SDL_iconv_string("UCS-4-INTERNAL", "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 */ +#ifndef HAVE_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 */ +#ifndef HAVE_STRLCAT +size_t strlcat(char* dst, const char* src, size_t size); +#endif + +#define SDL_malloc malloc +#define SDL_calloc calloc +#define SDL_realloc realloc +#define SDL_free free +#define SDL_memset memset +#define SDL_memcpy memcpy +#define SDL_memmove memmove +#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_strtokr 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 + +SDL_FORCE_INLINE void *SDL_memcpy4(SDL_OUT_BYTECAP(dwords*4) void *dst, SDL_IN_BYTECAP(dwords*4) const void *src, size_t dwords) +{ + return SDL_memcpy(dst, src, dwords * 4); +} + +/** + * If a * b would overflow, return -1. Otherwise store a * b via ret + * and return 0. + * + * \since This function is available since SDL 2.24.0. + */ +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 2.24.0. + */ +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 + +/* Ends C function definitions when using C++ */ +#ifdef __cplusplus +} +#endif +#include "close_code.h" + +#endif /* SDL_stdinc_h_ */ + +/* vi: set ts=4 sw=4 expandtab: */ |