SDL_iconv.h

/*
  Simple DirectMedia Layer
  Copyright (C) 1997-2018 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.
*/

#ifndef SDL_iconv_h_
#define SDL_iconv_h_

#if __cplusplus
extern "C" {
#endif

#if _MSC_VER
    #ifndef _SIZE_T_DEFINED_
    #define _SIZE_T_DEFINED_
        typedef unsigned int size_t;
    #endif
#endif


/* 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;

// ASCII
// US-ASCII
// 8859-1
// ISO-8859-1
// UTF8
// UTF-8
// UTF16
// UTF-16
// UTF16BE
// UTF-16BE
// UTF16LE
// UTF-16LE
// UTF32
// UTF-32
// UTF32BE
// UTF-32BE
// UTF32LE
// UTF-32LE
// UCS2
// UCS-2
// UCS-2LE
// UCS-2BE
// UCS-2-INTERNAL
// UCS4
// UCS-4
// UCS-4LE
// UCS-4BE
// UCS-4-INTERNAL

SDL_iconv_t SDL_iconv_open(const char *tocode, const char *fromcode);
int SDL_iconv_close(SDL_iconv_t cd);
size_t 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.
*/
char * SDL_iconv_string(const char *tocode, const char *fromcode, const char *inbuf, size_t inbytesleft);


#if __cplusplus
}
#endif

#endif /* SDL_iconv_h_ */




















#ifdef SDL_ICONV_MISSING_LIB

/**
 *  \name The two types of endianness
 */
/* @{ */
#define SDL_LIL_ENDIAN  1234
#define SDL_BIG_ENDIAN  4321
/* @} */

#ifndef SDL_BYTEORDER           /* Not defined in SDL_config.h? */
#ifdef __linux__
#include <endian.h>
#define SDL_BYTEORDER  __BYTE_ORDER
#else /* __linux__ */
#if defined(__hppa__) || \
    defined(__m68k__) || defined(mc68000) || defined(_M_M68K) || \
    (defined(__MIPS__) && defined(__MISPEB__)) || \
    defined(__ppc__) || defined(__POWERPC__) || defined(_M_PPC) || \
    defined(__sparc__)
#define SDL_BYTEORDER   SDL_BIG_ENDIAN
#else
#define SDL_BYTEORDER   SDL_LIL_ENDIAN
#endif
#endif /* __linux__ */
#endif /* !SDL_BYTEORDER */


/* This is a set of defines to configure the SDL features */

#if !defined(_STDINT_H_) && (!defined(HAVE_STDINT_H) || !_HAVE_STDINT_H)
#if defined(__GNUC__) || defined(__DMC__) || defined(__WATCOMC__)
#define HAVE_STDINT_H   1
#elif defined(_MSC_VER)
typedef signed __int8 int8_t;
typedef unsigned __int8 uint8_t;
typedef signed __int16 int16_t;
typedef unsigned __int16 uint16_t;
typedef signed __int32 int32_t;
typedef unsigned __int32 uint32_t;
typedef signed __int64 int64_t;
typedef unsigned __int64 uint64_t;
#ifndef _UINTPTR_T_DEFINED
#ifdef  _WIN64
typedef unsigned __int64 uintptr_t;
#else
typedef unsigned int uintptr_t;
#endif
#define _UINTPTR_T_DEFINED
#endif
/* Older Visual C++ headers don't have the Win64-compatible typedefs... */
#if ((_MSC_VER <= 1200) && (!defined(DWORD_PTR)))
#define DWORD_PTR DWORD
#endif
#if ((_MSC_VER <= 1200) && (!defined(LONG_PTR)))
#define LONG_PTR LONG
#endif
#else /* !__GNUC__ && !_MSC_VER */
typedef signed char int8_t;
typedef unsigned char uint8_t;
typedef signed short int16_t;
typedef unsigned short uint16_t;
typedef signed int int32_t;
typedef unsigned int uint32_t;
typedef signed long long int64_t;
typedef unsigned long long uint64_t;
#ifndef _SIZE_T_DEFINED_
#define _SIZE_T_DEFINED_
typedef unsigned int size_t;
#endif
typedef unsigned int uintptr_t;
#endif /* __GNUC__ || _MSC_VER */
#endif /* !_STDINT_H_ && !HAVE_STDINT_H */

#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;

#include <string.h>
#include <ctype.h>

#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_strlen strlen
#define SDL_strlcpy strlcpy
#define SDL_strlcat strlcat
#define SDL_strdup strdup
#define SDL_strchr strchr
#define SDL_strrchr strrchr
#define SDL_strstr strstr
#define SDL_strcmp strcmp
#define SDL_strncmp strncmp
#define SDL_strcasecmp strcasecmp
#define SDL_strncasecmp strncasecmp
#define SDL_sscanf sscanf
#define SDL_vsscanf vsscanf
#define SDL_snprintf snprintf
#define SDL_vsnprintf vsnprintf
#define SDL_toupper toupper

/* !!! FIXME: these have side effects. You probably shouldn't use them. */
/* !!! FIXME: Maybe we do forceinline functions of SDL_mini, SDL_minf, etc? */
#define SDL_min(x, y) (((x) < (y)) ? (x) : (y))
#define SDL_max(x, y) (((x) > (y)) ? (x) : (y))

/**
*  The number of elements in an array.
*/
#define SDL_arraysize(array)    (sizeof(array)/sizeof(array[0]))
#define SDL_TABLESIZE(table)    SDL_arraysize(table)

static size_t strlcpy(char *dst, const char *src, size_t maxlen)
{
#if defined(HAVE_STRLCPY)
    return strlcpy(dst, src, maxlen);
#else
    size_t srclen = SDL_strlen(src);
    if (maxlen > 0) {
        size_t len = SDL_min(srclen, maxlen - 1);
        SDL_memcpy(dst, src, len);
        dst[len] = '\0';
    }
    return srclen;
#endif /* HAVE_STRLCPY */
}
static size_t strlcat(char *dst, const char *src, size_t maxlen)
{
#if defined(HAVE_STRLCAT)
    return strlcat(dst, src, maxlen);
#else
    size_t dstlen = SDL_strlen(dst);
    size_t srclen = SDL_strlen(src);
    if (dstlen < maxlen) {
        SDL_strlcpy(dst + dstlen, src, maxlen - dstlen);
    }
    return dstlen + srclen;
#endif /* HAVE_STRLCAT */
}
static int strcasecmp(const char *str1, const char *str2)
{
#ifdef HAVE_STRCASECMP
    return strcasecmp(str1, str2);
#elif defined(HAVE__STRICMP)
    return _stricmp(str1, str2);
#else
    char a = 0;
    char b = 0;
    while (*str1 && *str2) {
        a = SDL_toupper((unsigned char)*str1);
        b = SDL_toupper((unsigned char)*str2);
        if (a != b)
            break;
        ++str1;
        ++str2;
    }
    a = SDL_toupper(*str1);
    b = SDL_toupper(*str2);
    return (int)((unsigned char)a - (unsigned char)b);
#endif /* HAVE_STRCASECMP */
}

#endif