src/stdlib/SDL_iconv.c
author Edward Rudd <urkle@outoforder.cc>
Wed, 26 Sep 2012 14:08:46 -0400
changeset 6462 5e09ac1aba80
parent 6138 4c64952a58fb
child 6610 4032f8efdfe7
permissions -rwxr-xr-x
allocate *Hint structures per Xlib docs
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
     1
/*
5535
96594ac5fd1a SDL 1.3 is now under the zlib license.
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
     2
  Simple DirectMedia Layer
6138
4c64952a58fb Happy New Year!
Sam Lantinga <slouken@libsdl.org>
parents: 5633
diff changeset
     3
  Copyright (C) 1997-2012 Sam Lantinga <slouken@libsdl.org>
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
     4
5535
96594ac5fd1a SDL 1.3 is now under the zlib license.
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
     5
  This software is provided 'as-is', without any express or implied
96594ac5fd1a SDL 1.3 is now under the zlib license.
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
     6
  warranty.  In no event will the authors be held liable for any damages
96594ac5fd1a SDL 1.3 is now under the zlib license.
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
     7
  arising from the use of this software.
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
     8
5535
96594ac5fd1a SDL 1.3 is now under the zlib license.
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
     9
  Permission is granted to anyone to use this software for any purpose,
96594ac5fd1a SDL 1.3 is now under the zlib license.
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
    10
  including commercial applications, and to alter it and redistribute it
96594ac5fd1a SDL 1.3 is now under the zlib license.
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
    11
  freely, subject to the following restrictions:
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    12
5535
96594ac5fd1a SDL 1.3 is now under the zlib license.
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
    13
  1. The origin of this software must not be misrepresented; you must not
96594ac5fd1a SDL 1.3 is now under the zlib license.
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
    14
     claim that you wrote the original software. If you use this software
96594ac5fd1a SDL 1.3 is now under the zlib license.
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
    15
     in a product, an acknowledgment in the product documentation would be
96594ac5fd1a SDL 1.3 is now under the zlib license.
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
    16
     appreciated but is not required.
96594ac5fd1a SDL 1.3 is now under the zlib license.
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
    17
  2. Altered source versions must be plainly marked as such, and must not be
96594ac5fd1a SDL 1.3 is now under the zlib license.
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
    18
     misrepresented as being the original software.
96594ac5fd1a SDL 1.3 is now under the zlib license.
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
    19
  3. This notice may not be removed or altered from any source distribution.
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    20
*/
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    21
#include "SDL_config.h"
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    22
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    23
/* This file contains portable iconv functions for SDL */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    24
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    25
#include "SDL_stdinc.h"
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    26
#include "SDL_endian.h"
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    27
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    28
#ifdef HAVE_ICONV
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    29
2136
5a1b6fe6e90f iconv() doesn't write to the data, just make compilers happy
Sam Lantinga <slouken@libsdl.org>
parents: 2135
diff changeset
    30
/* Depending on which standard the iconv() was implemented with,
5a1b6fe6e90f iconv() doesn't write to the data, just make compilers happy
Sam Lantinga <slouken@libsdl.org>
parents: 2135
diff changeset
    31
   iconv() may or may not use const char ** for the inbuf param.
5a1b6fe6e90f iconv() doesn't write to the data, just make compilers happy
Sam Lantinga <slouken@libsdl.org>
parents: 2135
diff changeset
    32
   If we get this wrong, it's just a warning, so no big deal.
5a1b6fe6e90f iconv() doesn't write to the data, just make compilers happy
Sam Lantinga <slouken@libsdl.org>
parents: 2135
diff changeset
    33
*/
5633
21a6e87905e3 Apple's C runtime has the non-const iconv(), too.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
    34
#if defined(_XGP6) || defined(__APPLE__) || \
21a6e87905e3 Apple's C runtime has the non-const iconv(), too.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
    35
    (defined(__GLIBC__) && ((__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)))
2136
5a1b6fe6e90f iconv() doesn't write to the data, just make compilers happy
Sam Lantinga <slouken@libsdl.org>
parents: 2135
diff changeset
    36
#define ICONV_INBUF_NONCONST
5a1b6fe6e90f iconv() doesn't write to the data, just make compilers happy
Sam Lantinga <slouken@libsdl.org>
parents: 2135
diff changeset
    37
#endif
5a1b6fe6e90f iconv() doesn't write to the data, just make compilers happy
Sam Lantinga <slouken@libsdl.org>
parents: 2135
diff changeset
    38
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    39
#include <errno.h>
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    40
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    41
size_t
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    42
SDL_iconv(SDL_iconv_t cd,
2135
0313af081a84 Merge iconv const changes from 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 1895
diff changeset
    43
          const char **inbuf, size_t * inbytesleft,
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    44
          char **outbuf, size_t * outbytesleft)
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    45
{
2135
0313af081a84 Merge iconv const changes from 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 1895
diff changeset
    46
    size_t retCode;
2136
5a1b6fe6e90f iconv() doesn't write to the data, just make compilers happy
Sam Lantinga <slouken@libsdl.org>
parents: 2135
diff changeset
    47
#ifdef ICONV_INBUF_NONCONST
5a1b6fe6e90f iconv() doesn't write to the data, just make compilers happy
Sam Lantinga <slouken@libsdl.org>
parents: 2135
diff changeset
    48
    retCode = iconv(cd, (char **) inbuf, inbytesleft, outbuf, outbytesleft);
2135
0313af081a84 Merge iconv const changes from 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 1895
diff changeset
    49
#else
2136
5a1b6fe6e90f iconv() doesn't write to the data, just make compilers happy
Sam Lantinga <slouken@libsdl.org>
parents: 2135
diff changeset
    50
    retCode = iconv(cd, inbuf, inbytesleft, outbuf, outbytesleft);
2135
0313af081a84 Merge iconv const changes from 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 1895
diff changeset
    51
#endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    52
    if (retCode == (size_t) - 1) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    53
        switch (errno) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    54
        case E2BIG:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    55
            return SDL_ICONV_E2BIG;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    56
        case EILSEQ:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    57
            return SDL_ICONV_EILSEQ;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    58
        case EINVAL:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    59
            return SDL_ICONV_EINVAL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    60
        default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    61
            return SDL_ICONV_ERROR;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    62
        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    63
    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    64
    return retCode;
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    65
}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    66
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    67
#else
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    68
1503
5e4dad24a5de props yo
Sam Lantinga <slouken@libsdl.org>
parents: 1502
diff changeset
    69
/* Lots of useful information on Unicode at:
5e4dad24a5de props yo
Sam Lantinga <slouken@libsdl.org>
parents: 1502
diff changeset
    70
	http://www.cl.cam.ac.uk/~mgk25/unicode.html
5e4dad24a5de props yo
Sam Lantinga <slouken@libsdl.org>
parents: 1502
diff changeset
    71
*/
5e4dad24a5de props yo
Sam Lantinga <slouken@libsdl.org>
parents: 1502
diff changeset
    72
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    73
#define UNICODE_BOM	0xFEFF
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    74
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    75
#define UNKNOWN_ASCII	'?'
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    76
#define UNKNOWN_UNICODE	0xFFFD
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    77
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    78
enum
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    79
{
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    80
    ENCODING_UNKNOWN,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    81
    ENCODING_ASCII,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    82
    ENCODING_LATIN1,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    83
    ENCODING_UTF8,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    84
    ENCODING_UTF16,             /* Needs byte order marker */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    85
    ENCODING_UTF16BE,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    86
    ENCODING_UTF16LE,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    87
    ENCODING_UTF32,             /* Needs byte order marker */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    88
    ENCODING_UTF32BE,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    89
    ENCODING_UTF32LE,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    90
    ENCODING_UCS2,              /* Native byte order assumed */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
    91
    ENCODING_UCS4,              /* Native byte order assumed */
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    92
};
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    93
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    94
#define ENCODING_UTF16NATIVE	ENCODING_UTF16BE
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    95
#define ENCODING_UTF32NATIVE	ENCODING_UTF32BE
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    96
#else
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    97
#define ENCODING_UTF16NATIVE	ENCODING_UTF16LE
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    98
#define ENCODING_UTF32NATIVE	ENCODING_UTF32LE
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    99
#endif
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   100
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   101
struct _SDL_iconv_t
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   102
{
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   103
    int src_fmt;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   104
    int dst_fmt;
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   105
};
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   106
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   107
static struct
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   108
{
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   109
    const char *name;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   110
    int format;
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   111
} encodings[] = {
2142
ca80c942e69c Fixed bug #349
Sam Lantinga <slouken@libsdl.org>
parents: 2136
diff changeset
   112
/* *INDENT-OFF* */
ca80c942e69c Fixed bug #349
Sam Lantinga <slouken@libsdl.org>
parents: 2136
diff changeset
   113
    { "ASCII", ENCODING_ASCII },
ca80c942e69c Fixed bug #349
Sam Lantinga <slouken@libsdl.org>
parents: 2136
diff changeset
   114
    { "US-ASCII", ENCODING_ASCII },
ca80c942e69c Fixed bug #349
Sam Lantinga <slouken@libsdl.org>
parents: 2136
diff changeset
   115
    { "8859-1", ENCODING_LATIN1 },
ca80c942e69c Fixed bug #349
Sam Lantinga <slouken@libsdl.org>
parents: 2136
diff changeset
   116
    { "ISO-8859-1", ENCODING_LATIN1 },
ca80c942e69c Fixed bug #349
Sam Lantinga <slouken@libsdl.org>
parents: 2136
diff changeset
   117
    { "UTF8", ENCODING_UTF8 },
ca80c942e69c Fixed bug #349
Sam Lantinga <slouken@libsdl.org>
parents: 2136
diff changeset
   118
    { "UTF-8", ENCODING_UTF8 },
ca80c942e69c Fixed bug #349
Sam Lantinga <slouken@libsdl.org>
parents: 2136
diff changeset
   119
    { "UTF16", ENCODING_UTF16 },
ca80c942e69c Fixed bug #349
Sam Lantinga <slouken@libsdl.org>
parents: 2136
diff changeset
   120
    { "UTF-16", ENCODING_UTF16 },
ca80c942e69c Fixed bug #349
Sam Lantinga <slouken@libsdl.org>
parents: 2136
diff changeset
   121
    { "UTF16BE", ENCODING_UTF16BE },
ca80c942e69c Fixed bug #349
Sam Lantinga <slouken@libsdl.org>
parents: 2136
diff changeset
   122
    { "UTF-16BE", ENCODING_UTF16BE },
ca80c942e69c Fixed bug #349
Sam Lantinga <slouken@libsdl.org>
parents: 2136
diff changeset
   123
    { "UTF16LE", ENCODING_UTF16LE },
ca80c942e69c Fixed bug #349
Sam Lantinga <slouken@libsdl.org>
parents: 2136
diff changeset
   124
    { "UTF-16LE", ENCODING_UTF16LE },
ca80c942e69c Fixed bug #349
Sam Lantinga <slouken@libsdl.org>
parents: 2136
diff changeset
   125
    { "UTF32", ENCODING_UTF32 },
ca80c942e69c Fixed bug #349
Sam Lantinga <slouken@libsdl.org>
parents: 2136
diff changeset
   126
    { "UTF-32", ENCODING_UTF32 },
ca80c942e69c Fixed bug #349
Sam Lantinga <slouken@libsdl.org>
parents: 2136
diff changeset
   127
    { "UTF32BE", ENCODING_UTF32BE },
ca80c942e69c Fixed bug #349
Sam Lantinga <slouken@libsdl.org>
parents: 2136
diff changeset
   128
    { "UTF-32BE", ENCODING_UTF32BE },
ca80c942e69c Fixed bug #349
Sam Lantinga <slouken@libsdl.org>
parents: 2136
diff changeset
   129
    { "UTF32LE", ENCODING_UTF32LE },
ca80c942e69c Fixed bug #349
Sam Lantinga <slouken@libsdl.org>
parents: 2136
diff changeset
   130
    { "UTF-32LE", ENCODING_UTF32LE },
ca80c942e69c Fixed bug #349
Sam Lantinga <slouken@libsdl.org>
parents: 2136
diff changeset
   131
    { "UCS2", ENCODING_UCS2 },
ca80c942e69c Fixed bug #349
Sam Lantinga <slouken@libsdl.org>
parents: 2136
diff changeset
   132
    { "UCS-2", ENCODING_UCS2 },
ca80c942e69c Fixed bug #349
Sam Lantinga <slouken@libsdl.org>
parents: 2136
diff changeset
   133
    { "UCS4", ENCODING_UCS4 },
ca80c942e69c Fixed bug #349
Sam Lantinga <slouken@libsdl.org>
parents: 2136
diff changeset
   134
    { "UCS-4", ENCODING_UCS4 },
ca80c942e69c Fixed bug #349
Sam Lantinga <slouken@libsdl.org>
parents: 2136
diff changeset
   135
/* *INDENT-ON* */
ca80c942e69c Fixed bug #349
Sam Lantinga <slouken@libsdl.org>
parents: 2136
diff changeset
   136
};
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   137
2182
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   138
static const char *
2184
8f8516e79a13 Merged Ryan's patch from revision 3238 in SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 2183
diff changeset
   139
getlocale(char *buffer, size_t bufsize)
2182
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   140
{
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   141
    const char *lang;
2184
8f8516e79a13 Merged Ryan's patch from revision 3238 in SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 2183
diff changeset
   142
    char *ptr;
2182
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   143
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   144
    lang = SDL_getenv("LC_ALL");
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   145
    if (!lang) {
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   146
        lang = SDL_getenv("LC_CTYPE");
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   147
    }
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   148
    if (!lang) {
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   149
        lang = SDL_getenv("LC_MESSAGES");
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   150
    }
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   151
    if (!lang) {
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   152
        lang = SDL_getenv("LANG");
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   153
    }
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   154
    if (!lang || !*lang || SDL_strcmp(lang, "C") == 0) {
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   155
        lang = "ASCII";
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   156
    }
2184
8f8516e79a13 Merged Ryan's patch from revision 3238 in SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 2183
diff changeset
   157
8f8516e79a13 Merged Ryan's patch from revision 3238 in SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 2183
diff changeset
   158
    /* We need to trim down strings like "en_US.UTF-8@blah" to "UTF-8" */
8f8516e79a13 Merged Ryan's patch from revision 3238 in SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 2183
diff changeset
   159
    ptr = SDL_strchr(lang, '.');
8f8516e79a13 Merged Ryan's patch from revision 3238 in SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 2183
diff changeset
   160
    if (ptr != NULL) {
8f8516e79a13 Merged Ryan's patch from revision 3238 in SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 2183
diff changeset
   161
        lang = ptr + 1;
8f8516e79a13 Merged Ryan's patch from revision 3238 in SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 2183
diff changeset
   162
    }
8f8516e79a13 Merged Ryan's patch from revision 3238 in SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 2183
diff changeset
   163
8f8516e79a13 Merged Ryan's patch from revision 3238 in SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 2183
diff changeset
   164
    SDL_strlcpy(buffer, lang, bufsize);
8f8516e79a13 Merged Ryan's patch from revision 3238 in SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 2183
diff changeset
   165
    ptr = SDL_strchr(buffer, '@');
8f8516e79a13 Merged Ryan's patch from revision 3238 in SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 2183
diff changeset
   166
    if (ptr != NULL) {
8f8516e79a13 Merged Ryan's patch from revision 3238 in SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 2183
diff changeset
   167
        *ptr = '\0';            /* chop end of string. */
8f8516e79a13 Merged Ryan's patch from revision 3238 in SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 2183
diff changeset
   168
    }
8f8516e79a13 Merged Ryan's patch from revision 3238 in SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 2183
diff changeset
   169
8f8516e79a13 Merged Ryan's patch from revision 3238 in SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 2183
diff changeset
   170
    return buffer;
2182
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   171
}
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   172
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   173
SDL_iconv_t
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   174
SDL_iconv_open(const char *tocode, const char *fromcode)
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   175
{
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   176
    int src_fmt = ENCODING_UNKNOWN;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   177
    int dst_fmt = ENCODING_UNKNOWN;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   178
    int i;
2184
8f8516e79a13 Merged Ryan's patch from revision 3238 in SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 2183
diff changeset
   179
    char fromcode_buffer[64];
8f8516e79a13 Merged Ryan's patch from revision 3238 in SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 2183
diff changeset
   180
    char tocode_buffer[64];
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   181
2182
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   182
    if (!fromcode || !*fromcode) {
2184
8f8516e79a13 Merged Ryan's patch from revision 3238 in SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 2183
diff changeset
   183
        fromcode = getlocale(fromcode_buffer, sizeof(fromcode_buffer));
2182
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   184
    }
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   185
    if (!tocode || !*tocode) {
2184
8f8516e79a13 Merged Ryan's patch from revision 3238 in SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 2183
diff changeset
   186
        tocode = getlocale(tocode_buffer, sizeof(tocode_buffer));
2182
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   187
    }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   188
    for (i = 0; i < SDL_arraysize(encodings); ++i) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   189
        if (SDL_strcasecmp(fromcode, encodings[i].name) == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   190
            src_fmt = encodings[i].format;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   191
            if (dst_fmt != ENCODING_UNKNOWN) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   192
                break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   193
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   194
        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   195
        if (SDL_strcasecmp(tocode, encodings[i].name) == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   196
            dst_fmt = encodings[i].format;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   197
            if (src_fmt != ENCODING_UNKNOWN) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   198
                break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   199
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   200
        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   201
    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   202
    if (src_fmt != ENCODING_UNKNOWN && dst_fmt != ENCODING_UNKNOWN) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   203
        SDL_iconv_t cd = (SDL_iconv_t) SDL_malloc(sizeof(*cd));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   204
        if (cd) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   205
            cd->src_fmt = src_fmt;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   206
            cd->dst_fmt = dst_fmt;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   207
            return cd;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   208
        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   209
    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   210
    return (SDL_iconv_t) - 1;
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   211
}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   212
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   213
size_t
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   214
SDL_iconv(SDL_iconv_t cd,
2135
0313af081a84 Merge iconv const changes from 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 1895
diff changeset
   215
          const char **inbuf, size_t * inbytesleft,
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   216
          char **outbuf, size_t * outbytesleft)
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   217
{
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   218
    /* For simplicity, we'll convert everything to and from UCS-4 */
2135
0313af081a84 Merge iconv const changes from 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 1895
diff changeset
   219
    const char *src;
0313af081a84 Merge iconv const changes from 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 1895
diff changeset
   220
    char *dst;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   221
    size_t srclen, dstlen;
2135
0313af081a84 Merge iconv const changes from 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 1895
diff changeset
   222
    Uint32 ch = 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   223
    size_t total;
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   224
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   225
    if (!inbuf || !*inbuf) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   226
        /* Reset the context */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   227
        return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   228
    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   229
    if (!outbuf || !*outbuf || !outbytesleft || !*outbytesleft) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   230
        return SDL_ICONV_E2BIG;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   231
    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   232
    src = *inbuf;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   233
    srclen = (inbytesleft ? *inbytesleft : 0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   234
    dst = *outbuf;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   235
    dstlen = *outbytesleft;
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   236
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   237
    switch (cd->src_fmt) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   238
    case ENCODING_UTF16:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   239
        /* Scan for a byte order marker */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   240
        {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   241
            Uint8 *p = (Uint8 *) src;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   242
            size_t n = srclen / 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   243
            while (n) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   244
                if (p[0] == 0xFF && p[1] == 0xFE) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   245
                    cd->src_fmt = ENCODING_UTF16BE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   246
                    break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   247
                } else if (p[0] == 0xFE && p[1] == 0xFF) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   248
                    cd->src_fmt = ENCODING_UTF16LE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   249
                    break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   250
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   251
                p += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   252
                --n;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   253
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   254
            if (n == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   255
                /* We can't tell, default to host order */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   256
                cd->src_fmt = ENCODING_UTF16NATIVE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   257
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   258
        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   259
        break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   260
    case ENCODING_UTF32:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   261
        /* Scan for a byte order marker */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   262
        {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   263
            Uint8 *p = (Uint8 *) src;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   264
            size_t n = srclen / 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   265
            while (n) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   266
                if (p[0] == 0xFF && p[1] == 0xFE &&
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   267
                    p[2] == 0x00 && p[3] == 0x00) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   268
                    cd->src_fmt = ENCODING_UTF32BE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   269
                    break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   270
                } else if (p[0] == 0x00 && p[1] == 0x00 &&
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   271
                           p[2] == 0xFE && p[3] == 0xFF) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   272
                    cd->src_fmt = ENCODING_UTF32LE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   273
                    break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   274
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   275
                p += 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   276
                --n;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   277
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   278
            if (n == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   279
                /* We can't tell, default to host order */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   280
                cd->src_fmt = ENCODING_UTF32NATIVE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   281
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   282
        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   283
        break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   284
    }
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   285
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   286
    switch (cd->dst_fmt) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   287
    case ENCODING_UTF16:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   288
        /* Default to host order, need to add byte order marker */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   289
        if (dstlen < 2) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   290
            return SDL_ICONV_E2BIG;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   291
        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   292
        *(Uint16 *) dst = UNICODE_BOM;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   293
        dst += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   294
        dstlen -= 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   295
        cd->dst_fmt = ENCODING_UTF16NATIVE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   296
        break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   297
    case ENCODING_UTF32:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   298
        /* Default to host order, need to add byte order marker */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   299
        if (dstlen < 4) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   300
            return SDL_ICONV_E2BIG;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   301
        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   302
        *(Uint32 *) dst = UNICODE_BOM;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   303
        dst += 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   304
        dstlen -= 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   305
        cd->dst_fmt = ENCODING_UTF32NATIVE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   306
        break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   307
    }
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   308
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   309
    total = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   310
    while (srclen > 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   311
        /* Decode a character */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   312
        switch (cd->src_fmt) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   313
        case ENCODING_ASCII:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   314
            {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   315
                Uint8 *p = (Uint8 *) src;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   316
                ch = (Uint32) (p[0] & 0x7F);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   317
                ++src;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   318
                --srclen;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   319
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   320
            break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   321
        case ENCODING_LATIN1:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   322
            {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   323
                Uint8 *p = (Uint8 *) src;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   324
                ch = (Uint32) p[0];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   325
                ++src;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   326
                --srclen;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   327
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   328
            break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   329
        case ENCODING_UTF8:    /* RFC 3629 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   330
            {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   331
                Uint8 *p = (Uint8 *) src;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   332
                size_t left = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   333
                SDL_bool overlong = SDL_FALSE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   334
                if (p[0] >= 0xFC) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   335
                    if ((p[0] & 0xFE) != 0xFC) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   336
                        /* Skip illegal sequences
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   337
                           return SDL_ICONV_EILSEQ;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   338
                         */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   339
                        ch = UNKNOWN_UNICODE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   340
                    } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   341
                        if (p[0] == 0xFC) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   342
                            overlong = SDL_TRUE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   343
                        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   344
                        ch = (Uint32) (p[0] & 0x01);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   345
                        left = 5;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   346
                    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   347
                } else if (p[0] >= 0xF8) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   348
                    if ((p[0] & 0xFC) != 0xF8) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   349
                        /* Skip illegal sequences
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   350
                           return SDL_ICONV_EILSEQ;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   351
                         */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   352
                        ch = UNKNOWN_UNICODE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   353
                    } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   354
                        if (p[0] == 0xF8) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   355
                            overlong = SDL_TRUE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   356
                        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   357
                        ch = (Uint32) (p[0] & 0x03);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   358
                        left = 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   359
                    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   360
                } else if (p[0] >= 0xF0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   361
                    if ((p[0] & 0xF8) != 0xF0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   362
                        /* Skip illegal sequences
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   363
                           return SDL_ICONV_EILSEQ;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   364
                         */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   365
                        ch = UNKNOWN_UNICODE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   366
                    } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   367
                        if (p[0] == 0xF0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   368
                            overlong = SDL_TRUE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   369
                        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   370
                        ch = (Uint32) (p[0] & 0x07);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   371
                        left = 3;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   372
                    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   373
                } else if (p[0] >= 0xE0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   374
                    if ((p[0] & 0xF0) != 0xE0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   375
                        /* Skip illegal sequences
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   376
                           return SDL_ICONV_EILSEQ;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   377
                         */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   378
                        ch = UNKNOWN_UNICODE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   379
                    } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   380
                        if (p[0] == 0xE0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   381
                            overlong = SDL_TRUE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   382
                        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   383
                        ch = (Uint32) (p[0] & 0x0F);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   384
                        left = 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   385
                    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   386
                } else if (p[0] >= 0xC0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   387
                    if ((p[0] & 0xE0) != 0xC0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   388
                        /* Skip illegal sequences
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   389
                           return SDL_ICONV_EILSEQ;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   390
                         */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   391
                        ch = UNKNOWN_UNICODE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   392
                    } else {
3539
f2846bf19360 Fixed bug #896
Sam Lantinga <slouken@libsdl.org>
parents: 3320
diff changeset
   393
                        if ((p[0] & 0xDE) == 0xC0) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   394
                            overlong = SDL_TRUE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   395
                        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   396
                        ch = (Uint32) (p[0] & 0x1F);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   397
                        left = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   398
                    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   399
                } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   400
                    if ((p[0] & 0x80) != 0x00) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   401
                        /* Skip illegal sequences
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   402
                           return SDL_ICONV_EILSEQ;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   403
                         */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   404
                        ch = UNKNOWN_UNICODE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   405
                    } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   406
                        ch = (Uint32) p[0];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   407
                    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   408
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   409
                ++src;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   410
                --srclen;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   411
                if (srclen < left) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   412
                    return SDL_ICONV_EINVAL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   413
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   414
                while (left--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   415
                    ++p;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   416
                    if ((p[0] & 0xC0) != 0x80) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   417
                        /* Skip illegal sequences
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   418
                           return SDL_ICONV_EILSEQ;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   419
                         */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   420
                        ch = UNKNOWN_UNICODE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   421
                        break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   422
                    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   423
                    ch <<= 6;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   424
                    ch |= (p[0] & 0x3F);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   425
                    ++src;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   426
                    --srclen;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   427
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   428
                if (overlong) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   429
                    /* Potential security risk
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   430
                       return SDL_ICONV_EILSEQ;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   431
                     */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   432
                    ch = UNKNOWN_UNICODE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   433
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   434
                if ((ch >= 0xD800 && ch <= 0xDFFF) ||
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   435
                    (ch == 0xFFFE || ch == 0xFFFF) || ch > 0x10FFFF) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   436
                    /* Skip illegal sequences
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   437
                       return SDL_ICONV_EILSEQ;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   438
                     */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   439
                    ch = UNKNOWN_UNICODE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   440
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   441
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   442
            break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   443
        case ENCODING_UTF16BE: /* RFC 2781 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   444
            {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   445
                Uint8 *p = (Uint8 *) src;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   446
                Uint16 W1, W2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   447
                if (srclen < 2) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   448
                    return SDL_ICONV_EINVAL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   449
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   450
                W1 = ((Uint16) p[0] << 8) | (Uint16) p[1];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   451
                src += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   452
                srclen -= 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   453
                if (W1 < 0xD800 || W1 > 0xDFFF) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   454
                    ch = (Uint32) W1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   455
                    break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   456
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   457
                if (W1 > 0xDBFF) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   458
                    /* Skip illegal sequences
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   459
                       return SDL_ICONV_EILSEQ;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   460
                     */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   461
                    ch = UNKNOWN_UNICODE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   462
                    break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   463
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   464
                if (srclen < 2) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   465
                    return SDL_ICONV_EINVAL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   466
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   467
                p = (Uint8 *) src;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   468
                W2 = ((Uint16) p[0] << 8) | (Uint16) p[1];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   469
                src += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   470
                srclen -= 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   471
                if (W2 < 0xDC00 || W2 > 0xDFFF) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   472
                    /* Skip illegal sequences
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   473
                       return SDL_ICONV_EILSEQ;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   474
                     */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   475
                    ch = UNKNOWN_UNICODE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   476
                    break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   477
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   478
                ch = (((Uint32) (W1 & 0x3FF) << 10) |
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   479
                      (Uint32) (W2 & 0x3FF)) + 0x10000;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   480
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   481
            break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   482
        case ENCODING_UTF16LE: /* RFC 2781 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   483
            {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   484
                Uint8 *p = (Uint8 *) src;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   485
                Uint16 W1, W2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   486
                if (srclen < 2) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   487
                    return SDL_ICONV_EINVAL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   488
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   489
                W1 = ((Uint16) p[1] << 8) | (Uint16) p[0];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   490
                src += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   491
                srclen -= 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   492
                if (W1 < 0xD800 || W1 > 0xDFFF) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   493
                    ch = (Uint32) W1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   494
                    break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   495
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   496
                if (W1 > 0xDBFF) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   497
                    /* Skip illegal sequences
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   498
                       return SDL_ICONV_EILSEQ;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   499
                     */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   500
                    ch = UNKNOWN_UNICODE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   501
                    break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   502
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   503
                if (srclen < 2) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   504
                    return SDL_ICONV_EINVAL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   505
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   506
                p = (Uint8 *) src;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   507
                W2 = ((Uint16) p[1] << 8) | (Uint16) p[0];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   508
                src += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   509
                srclen -= 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   510
                if (W2 < 0xDC00 || W2 > 0xDFFF) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   511
                    /* Skip illegal sequences
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   512
                       return SDL_ICONV_EILSEQ;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   513
                     */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   514
                    ch = UNKNOWN_UNICODE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   515
                    break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   516
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   517
                ch = (((Uint32) (W1 & 0x3FF) << 10) |
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   518
                      (Uint32) (W2 & 0x3FF)) + 0x10000;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   519
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   520
            break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   521
        case ENCODING_UTF32BE:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   522
            {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   523
                Uint8 *p = (Uint8 *) src;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   524
                if (srclen < 4) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   525
                    return SDL_ICONV_EINVAL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   526
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   527
                ch = ((Uint32) p[0] << 24) |
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   528
                    ((Uint32) p[1] << 16) |
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   529
                    ((Uint32) p[2] << 8) | (Uint32) p[3];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   530
                src += 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   531
                srclen -= 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   532
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   533
            break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   534
        case ENCODING_UTF32LE:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   535
            {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   536
                Uint8 *p = (Uint8 *) src;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   537
                if (srclen < 4) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   538
                    return SDL_ICONV_EINVAL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   539
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   540
                ch = ((Uint32) p[3] << 24) |
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   541
                    ((Uint32) p[2] << 16) |
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   542
                    ((Uint32) p[1] << 8) | (Uint32) p[0];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   543
                src += 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   544
                srclen -= 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   545
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   546
            break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   547
        case ENCODING_UCS2:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   548
            {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   549
                Uint16 *p = (Uint16 *) src;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   550
                if (srclen < 2) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   551
                    return SDL_ICONV_EINVAL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   552
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   553
                ch = *p;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   554
                src += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   555
                srclen -= 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   556
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   557
            break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   558
        case ENCODING_UCS4:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   559
            {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   560
                Uint32 *p = (Uint32 *) src;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   561
                if (srclen < 4) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   562
                    return SDL_ICONV_EINVAL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   563
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   564
                ch = *p;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   565
                src += 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   566
                srclen -= 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   567
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   568
            break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   569
        }
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   570
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   571
        /* Encode a character */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   572
        switch (cd->dst_fmt) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   573
        case ENCODING_ASCII:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   574
            {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   575
                Uint8 *p = (Uint8 *) dst;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   576
                if (dstlen < 1) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   577
                    return SDL_ICONV_E2BIG;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   578
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   579
                if (ch > 0x7F) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   580
                    *p = UNKNOWN_ASCII;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   581
                } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   582
                    *p = (Uint8) ch;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   583
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   584
                ++dst;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   585
                --dstlen;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   586
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   587
            break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   588
        case ENCODING_LATIN1:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   589
            {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   590
                Uint8 *p = (Uint8 *) dst;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   591
                if (dstlen < 1) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   592
                    return SDL_ICONV_E2BIG;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   593
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   594
                if (ch > 0xFF) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   595
                    *p = UNKNOWN_ASCII;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   596
                } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   597
                    *p = (Uint8) ch;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   598
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   599
                ++dst;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   600
                --dstlen;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   601
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   602
            break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   603
        case ENCODING_UTF8:    /* RFC 3629 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   604
            {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   605
                Uint8 *p = (Uint8 *) dst;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   606
                if (ch > 0x10FFFF) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   607
                    ch = UNKNOWN_UNICODE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   608
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   609
                if (ch <= 0x7F) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   610
                    if (dstlen < 1) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   611
                        return SDL_ICONV_E2BIG;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   612
                    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   613
                    *p = (Uint8) ch;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   614
                    ++dst;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   615
                    --dstlen;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   616
                } else if (ch <= 0x7FF) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   617
                    if (dstlen < 2) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   618
                        return SDL_ICONV_E2BIG;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   619
                    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   620
                    p[0] = 0xC0 | (Uint8) ((ch >> 6) & 0x1F);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   621
                    p[1] = 0x80 | (Uint8) (ch & 0x3F);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   622
                    dst += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   623
                    dstlen -= 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   624
                } else if (ch <= 0xFFFF) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   625
                    if (dstlen < 3) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   626
                        return SDL_ICONV_E2BIG;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   627
                    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   628
                    p[0] = 0xE0 | (Uint8) ((ch >> 12) & 0x0F);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   629
                    p[1] = 0x80 | (Uint8) ((ch >> 6) & 0x3F);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   630
                    p[2] = 0x80 | (Uint8) (ch & 0x3F);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   631
                    dst += 3;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   632
                    dstlen -= 3;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   633
                } else if (ch <= 0x1FFFFF) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   634
                    if (dstlen < 4) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   635
                        return SDL_ICONV_E2BIG;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   636
                    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   637
                    p[0] = 0xF0 | (Uint8) ((ch >> 18) & 0x07);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   638
                    p[1] = 0x80 | (Uint8) ((ch >> 12) & 0x3F);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   639
                    p[2] = 0x80 | (Uint8) ((ch >> 6) & 0x3F);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   640
                    p[3] = 0x80 | (Uint8) (ch & 0x3F);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   641
                    dst += 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   642
                    dstlen -= 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   643
                } else if (ch <= 0x3FFFFFF) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   644
                    if (dstlen < 5) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   645
                        return SDL_ICONV_E2BIG;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   646
                    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   647
                    p[0] = 0xF8 | (Uint8) ((ch >> 24) & 0x03);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   648
                    p[1] = 0x80 | (Uint8) ((ch >> 18) & 0x3F);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   649
                    p[2] = 0x80 | (Uint8) ((ch >> 12) & 0x3F);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   650
                    p[3] = 0x80 | (Uint8) ((ch >> 6) & 0x3F);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   651
                    p[4] = 0x80 | (Uint8) (ch & 0x3F);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   652
                    dst += 5;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   653
                    dstlen -= 5;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   654
                } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   655
                    if (dstlen < 6) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   656
                        return SDL_ICONV_E2BIG;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   657
                    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   658
                    p[0] = 0xFC | (Uint8) ((ch >> 30) & 0x01);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   659
                    p[1] = 0x80 | (Uint8) ((ch >> 24) & 0x3F);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   660
                    p[2] = 0x80 | (Uint8) ((ch >> 18) & 0x3F);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   661
                    p[3] = 0x80 | (Uint8) ((ch >> 12) & 0x3F);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   662
                    p[4] = 0x80 | (Uint8) ((ch >> 6) & 0x3F);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   663
                    p[5] = 0x80 | (Uint8) (ch & 0x3F);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   664
                    dst += 6;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   665
                    dstlen -= 6;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   666
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   667
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   668
            break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   669
        case ENCODING_UTF16BE: /* RFC 2781 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   670
            {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   671
                Uint8 *p = (Uint8 *) dst;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   672
                if (ch > 0x10FFFF) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   673
                    ch = UNKNOWN_UNICODE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   674
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   675
                if (ch < 0x10000) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   676
                    if (dstlen < 2) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   677
                        return SDL_ICONV_E2BIG;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   678
                    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   679
                    p[0] = (Uint8) (ch >> 8);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   680
                    p[1] = (Uint8) ch;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   681
                    dst += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   682
                    dstlen -= 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   683
                } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   684
                    Uint16 W1, W2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   685
                    if (dstlen < 4) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   686
                        return SDL_ICONV_E2BIG;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   687
                    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   688
                    ch = ch - 0x10000;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   689
                    W1 = 0xD800 | (Uint16) ((ch >> 10) & 0x3FF);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   690
                    W2 = 0xDC00 | (Uint16) (ch & 0x3FF);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   691
                    p[0] = (Uint8) (W1 >> 8);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   692
                    p[1] = (Uint8) W1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   693
                    p[2] = (Uint8) (W2 >> 8);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   694
                    p[3] = (Uint8) W2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   695
                    dst += 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   696
                    dstlen -= 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   697
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   698
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   699
            break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   700
        case ENCODING_UTF16LE: /* RFC 2781 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   701
            {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   702
                Uint8 *p = (Uint8 *) dst;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   703
                if (ch > 0x10FFFF) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   704
                    ch = UNKNOWN_UNICODE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   705
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   706
                if (ch < 0x10000) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   707
                    if (dstlen < 2) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   708
                        return SDL_ICONV_E2BIG;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   709
                    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   710
                    p[1] = (Uint8) (ch >> 8);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   711
                    p[0] = (Uint8) ch;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   712
                    dst += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   713
                    dstlen -= 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   714
                } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   715
                    Uint16 W1, W2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   716
                    if (dstlen < 4) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   717
                        return SDL_ICONV_E2BIG;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   718
                    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   719
                    ch = ch - 0x10000;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   720
                    W1 = 0xD800 | (Uint16) ((ch >> 10) & 0x3FF);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   721
                    W2 = 0xDC00 | (Uint16) (ch & 0x3FF);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   722
                    p[1] = (Uint8) (W1 >> 8);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   723
                    p[0] = (Uint8) W1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   724
                    p[3] = (Uint8) (W2 >> 8);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   725
                    p[2] = (Uint8) W2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   726
                    dst += 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   727
                    dstlen -= 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   728
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   729
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   730
            break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   731
        case ENCODING_UTF32BE:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   732
            {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   733
                Uint8 *p = (Uint8 *) dst;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   734
                if (ch > 0x10FFFF) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   735
                    ch = UNKNOWN_UNICODE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   736
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   737
                if (dstlen < 4) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   738
                    return SDL_ICONV_E2BIG;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   739
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   740
                p[0] = (Uint8) (ch >> 24);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   741
                p[1] = (Uint8) (ch >> 16);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   742
                p[2] = (Uint8) (ch >> 8);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   743
                p[3] = (Uint8) ch;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   744
                dst += 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   745
                dstlen -= 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   746
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   747
            break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   748
        case ENCODING_UTF32LE:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   749
            {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   750
                Uint8 *p = (Uint8 *) dst;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   751
                if (ch > 0x10FFFF) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   752
                    ch = UNKNOWN_UNICODE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   753
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   754
                if (dstlen < 4) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   755
                    return SDL_ICONV_E2BIG;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   756
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   757
                p[3] = (Uint8) (ch >> 24);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   758
                p[2] = (Uint8) (ch >> 16);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   759
                p[1] = (Uint8) (ch >> 8);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   760
                p[0] = (Uint8) ch;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   761
                dst += 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   762
                dstlen -= 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   763
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   764
            break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   765
        case ENCODING_UCS2:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   766
            {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   767
                Uint16 *p = (Uint16 *) dst;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   768
                if (ch > 0xFFFF) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   769
                    ch = UNKNOWN_UNICODE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   770
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   771
                if (dstlen < 2) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   772
                    return SDL_ICONV_E2BIG;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   773
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   774
                *p = (Uint16) ch;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   775
                dst += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   776
                dstlen -= 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   777
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   778
            break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   779
        case ENCODING_UCS4:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   780
            {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   781
                Uint32 *p = (Uint32 *) dst;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   782
                if (ch > 0x7FFFFFFF) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   783
                    ch = UNKNOWN_UNICODE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   784
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   785
                if (dstlen < 4) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   786
                    return SDL_ICONV_E2BIG;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   787
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   788
                *p = ch;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   789
                dst += 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   790
                dstlen -= 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   791
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   792
            break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   793
        }
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   794
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   795
        /* Update state */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   796
        *inbuf = src;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   797
        *inbytesleft = srclen;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   798
        *outbuf = dst;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   799
        *outbytesleft = dstlen;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   800
        ++total;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   801
    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   802
    return total;
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   803
}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   804
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   805
int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   806
SDL_iconv_close(SDL_iconv_t cd)
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   807
{
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   808
    if (cd && cd != (SDL_iconv_t) - 1) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   809
        SDL_free(cd);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   810
    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   811
    return 0;
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   812
}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   813
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   814
#endif /* !HAVE_ICONV */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   815
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   816
char *
2135
0313af081a84 Merge iconv const changes from 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 1895
diff changeset
   817
SDL_iconv_string(const char *tocode, const char *fromcode, const char *inbuf,
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   818
                 size_t inbytesleft)
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   819
{
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   820
    SDL_iconv_t cd;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   821
    char *string;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   822
    size_t stringsize;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   823
    char *outbuf;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   824
    size_t outbytesleft;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   825
    size_t retCode = 0;
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   826
2182
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   827
    cd = SDL_iconv_open(tocode, fromcode);
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   828
    if (cd == (SDL_iconv_t) - 1) {
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   829
        /* See if we can recover here (fixes iconv on Solaris 11) */
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   830
        if (!tocode || !*tocode) {
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   831
            tocode = "UTF-8";
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   832
        }
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   833
        if (!fromcode || !*fromcode) {
3320
b225c8a7896e Fixed bug #797
Sam Lantinga <slouken@libsdl.org>
parents: 2859
diff changeset
   834
            fromcode = "UTF-8";
2182
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   835
        }
cc2597da0840 Fixed bug #455
Sam Lantinga <slouken@libsdl.org>
parents: 2143
diff changeset
   836
        cd = SDL_iconv_open(tocode, fromcode);
2143
e906da4414a3 Fix for bug #447 merged from SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 2142
diff changeset
   837
    }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   838
    if (cd == (SDL_iconv_t) - 1) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   839
        return NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   840
    }
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   841
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   842
    stringsize = inbytesleft > 4 ? inbytesleft : 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   843
    string = SDL_malloc(stringsize);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   844
    if (!string) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   845
        SDL_iconv_close(cd);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   846
        return NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   847
    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   848
    outbuf = string;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   849
    outbytesleft = stringsize;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   850
    SDL_memset(outbuf, 0, 4);
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   851
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   852
    while (inbytesleft > 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   853
        retCode = SDL_iconv(cd, &inbuf, &inbytesleft, &outbuf, &outbytesleft);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   854
        switch (retCode) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   855
        case SDL_ICONV_E2BIG:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   856
            {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   857
                char *oldstring = string;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   858
                stringsize *= 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   859
                string = SDL_realloc(string, stringsize);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   860
                if (!string) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   861
                    SDL_iconv_close(cd);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   862
                    return NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   863
                }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   864
                outbuf = string + (outbuf - oldstring);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   865
                outbytesleft = stringsize - (outbuf - string);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   866
                SDL_memset(outbuf, 0, 4);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   867
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   868
            break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   869
        case SDL_ICONV_EILSEQ:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   870
            /* Try skipping some input data - not perfect, but... */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   871
            ++inbuf;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   872
            --inbytesleft;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   873
            break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   874
        case SDL_ICONV_EINVAL:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   875
        case SDL_ICONV_ERROR:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   876
            /* We can't continue... */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   877
            inbytesleft = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   878
            break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   879
        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   880
    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   881
    SDL_iconv_close(cd);
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   882
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   883
    return string;
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   884
}
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   885
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1849
diff changeset
   886
/* vi: set ts=4 sw=4 expandtab: */