src/stdlib/SDL_iconv.c
author Sam Lantinga <slouken@libsdl.org>
Wed, 17 May 2006 15:08:46 +0000
changeset 1849 b5a4ac87b98c
parent 1519 c99e7a9c9bc9
child 1895 c121d94672cb
child 3918 f16c15f3bc2b
permissions -rw-r--r--
Fixed uninitialized variable warnings
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997-2006 Sam Lantinga
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Lesser General Public
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    License as published by the Free Software Foundation; either
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    version 2.1 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Lesser General Public License for more details.
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    You should have received a copy of the GNU Lesser General Public
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    License along with this library; if not, write to the Free Software
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    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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    Sam Lantinga
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    slouken@libsdl.org
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*/
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#include "SDL_config.h"
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/* This file contains portable iconv functions for SDL */
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#include "SDL_stdinc.h"
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#include "SDL_endian.h"
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#ifdef HAVE_ICONV
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#include <errno.h>
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size_t SDL_iconv(SDL_iconv_t cd,
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                 char **inbuf, size_t *inbytesleft,
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                 char **outbuf, size_t *outbytesleft)
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{
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	size_t retCode = iconv(cd, inbuf, inbytesleft, outbuf, outbytesleft);
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	if ( retCode == (size_t)-1 ) {
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		switch(errno) {
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		    case E2BIG:
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			return SDL_ICONV_E2BIG;
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		    case EILSEQ:
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			return SDL_ICONV_EILSEQ;
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		    case EINVAL:
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			return SDL_ICONV_EINVAL;
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		    default:
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			return SDL_ICONV_ERROR;
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		}
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	}
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	return retCode;
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}
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#else
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/* Lots of useful information on Unicode at:
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	http://www.cl.cam.ac.uk/~mgk25/unicode.html
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*/
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#define UNICODE_BOM	0xFEFF
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#define UNKNOWN_ASCII	'?'
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#define UNKNOWN_UNICODE	0xFFFD
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enum {
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	ENCODING_UNKNOWN,
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	ENCODING_ASCII,
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	ENCODING_LATIN1,
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	ENCODING_UTF8,
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	ENCODING_UTF16,		/* Needs byte order marker */
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	ENCODING_UTF16BE,
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	ENCODING_UTF16LE,
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	ENCODING_UTF32,		/* Needs byte order marker */
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	ENCODING_UTF32BE,
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	ENCODING_UTF32LE,
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	ENCODING_UCS2,		/* Native byte order assumed */
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	ENCODING_UCS4,		/* Native byte order assumed */
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};
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#if SDL_BYTEORDER == SDL_BIG_ENDIAN
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#define ENCODING_UTF16NATIVE	ENCODING_UTF16BE
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#define ENCODING_UTF32NATIVE	ENCODING_UTF32BE
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#else
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#define ENCODING_UTF16NATIVE	ENCODING_UTF16LE
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#define ENCODING_UTF32NATIVE	ENCODING_UTF32LE
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#endif
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struct _SDL_iconv_t
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{
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	int src_fmt;
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	int dst_fmt;
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};
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static struct {
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	const char *name;
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	int format;
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} encodings[] = {
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	{ "ASCII",	ENCODING_ASCII },
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	{ "US-ASCII",	ENCODING_ASCII },
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	{ "LATIN1",	ENCODING_LATIN1 },
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	{ "ISO-8859-1",	ENCODING_LATIN1 },
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	{ "UTF8",	ENCODING_UTF8 },
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	{ "UTF-8",	ENCODING_UTF8 },
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	{ "UTF16",	ENCODING_UTF16 },
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	{ "UTF-16",	ENCODING_UTF16 },
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	{ "UTF16BE",	ENCODING_UTF16BE },
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	{ "UTF-16BE",	ENCODING_UTF16BE },
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parents:
diff changeset
   106
	{ "UTF16LE",	ENCODING_UTF16LE },
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parents:
diff changeset
   107
	{ "UTF-16LE",	ENCODING_UTF16LE },
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parents:
diff changeset
   108
	{ "UTF32",	ENCODING_UTF32 },
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parents:
diff changeset
   109
	{ "UTF-32",	ENCODING_UTF32 },
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parents:
diff changeset
   110
	{ "UTF32BE",	ENCODING_UTF32BE },
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parents:
diff changeset
   111
	{ "UTF-32BE",	ENCODING_UTF32BE },
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parents:
diff changeset
   112
	{ "UTF32LE",	ENCODING_UTF32LE },
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parents:
diff changeset
   113
	{ "UTF-32LE",	ENCODING_UTF32LE },
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parents:
diff changeset
   114
	{ "UCS2",	ENCODING_UCS2 },
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   115
	{ "UCS-2",	ENCODING_UCS2 },
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   116
	{ "UCS4",	ENCODING_UCS4 },
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   117
	{ "UCS-4",	ENCODING_UCS4 },
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   118
};
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diff changeset
   119
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   120
SDL_iconv_t SDL_iconv_open(const char *tocode, const char *fromcode)
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   121
{
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   122
	int src_fmt = ENCODING_UNKNOWN;
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   123
	int dst_fmt = ENCODING_UNKNOWN;
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   124
	int i;
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diff changeset
   125
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   126
	for ( i = 0; i < SDL_arraysize(encodings); ++i ) {
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   127
		if ( SDL_strcasecmp(fromcode, encodings[i].name) == 0 ) {
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   128
			src_fmt = encodings[i].format;
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   129
			if ( dst_fmt != ENCODING_UNKNOWN ) {
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   130
				break;
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   131
			}
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   132
		}
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diff changeset
   133
		if ( SDL_strcasecmp(tocode, encodings[i].name) == 0 ) {
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   134
			dst_fmt = encodings[i].format;
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   135
			if ( src_fmt != ENCODING_UNKNOWN ) {
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diff changeset
   136
				break;
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diff changeset
   137
			}
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parents:
diff changeset
   138
		}
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diff changeset
   139
	}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   140
	if ( src_fmt != ENCODING_UNKNOWN && dst_fmt != ENCODING_UNKNOWN ) {
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   141
		SDL_iconv_t cd = (SDL_iconv_t)SDL_malloc(sizeof(*cd));
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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   142
		if ( cd ) {
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parents:
diff changeset
   143
			cd->src_fmt = src_fmt;
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   144
			cd->dst_fmt = dst_fmt;
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   145
			return cd;
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parents:
diff changeset
   146
		}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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diff changeset
   147
	}
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parents:
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   148
	return (SDL_iconv_t)-1;
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diff changeset
   149
}
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parents:
diff changeset
   150
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diff changeset
   151
size_t SDL_iconv(SDL_iconv_t cd,
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   152
                 char **inbuf, size_t *inbytesleft,
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parents:
diff changeset
   153
                 char **outbuf, size_t *outbytesleft)
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parents:
diff changeset
   154
{
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parents:
diff changeset
   155
	/* For simplicity, we'll convert everything to and from UCS-4 */
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parents:
diff changeset
   156
	char *src, *dst;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   157
	size_t srclen, dstlen;
1849
b5a4ac87b98c Fixed uninitialized variable warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1519
diff changeset
   158
	Uint32 ch = 0;
1501
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parents:
diff changeset
   159
	size_t total;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   160
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parents:
diff changeset
   161
	if ( !inbuf || !*inbuf ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   162
		/* Reset the context */
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parents:
diff changeset
   163
		return 0;
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parents:
diff changeset
   164
	}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   165
	if ( !outbuf || !*outbuf || !outbytesleft || !*outbytesleft ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   166
		return SDL_ICONV_E2BIG;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   167
	}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   168
	src = *inbuf;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   169
	srclen = (inbytesleft ? *inbytesleft : 0);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   170
	dst = *outbuf;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   171
	dstlen = *outbytesleft;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   172
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   173
	switch ( cd->src_fmt ) {
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parents:
diff changeset
   174
	    case ENCODING_UTF16:
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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diff changeset
   175
		/* Scan for a byte order marker */
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parents:
diff changeset
   176
		{
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parents:
diff changeset
   177
			Uint8 *p = (Uint8 *)src;
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diff changeset
   178
			size_t n = srclen / 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   179
			while ( n ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   180
				if ( p[0] == 0xFF && p[1] == 0xFE ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   181
					cd->src_fmt = ENCODING_UTF16BE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   182
					break;
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parents:
diff changeset
   183
				} else if ( p[0] == 0xFE && p[1] == 0xFF ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   184
					cd->src_fmt = ENCODING_UTF16LE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   185
					break;
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parents:
diff changeset
   186
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   187
				p += 2;
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diff changeset
   188
				--n;
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parents:
diff changeset
   189
			}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   190
			if ( n == 0 ) {
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   191
				/* We can't tell, default to host order */
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   192
				cd->src_fmt = ENCODING_UTF16NATIVE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   193
			}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   194
		}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   195
		break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   196
	    case ENCODING_UTF32:
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   197
		/* Scan for a byte order marker */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   198
		{
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parents:
diff changeset
   199
			Uint8 *p = (Uint8 *)src;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   200
			size_t n = srclen / 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   201
			while ( n ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   202
				if ( p[0] == 0xFF && p[1] == 0xFE &&
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   203
				     p[2] == 0x00 && p[3] == 0x00 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   204
					cd->src_fmt = ENCODING_UTF32BE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   205
					break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   206
				} else if ( p[0] == 0x00 && p[1] == 0x00 &&
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   207
				            p[2] == 0xFE && p[3] == 0xFF ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   208
					cd->src_fmt = ENCODING_UTF32LE;
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diff changeset
   209
					break;
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parents:
diff changeset
   210
				}
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parents:
diff changeset
   211
				p += 4;
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parents:
diff changeset
   212
				--n;
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parents:
diff changeset
   213
			}
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parents:
diff changeset
   214
			if ( n == 0 ) {
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parents:
diff changeset
   215
				/* We can't tell, default to host order */
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parents:
diff changeset
   216
				cd->src_fmt = ENCODING_UTF32NATIVE;
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parents:
diff changeset
   217
			}
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parents:
diff changeset
   218
		}
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parents:
diff changeset
   219
		break;
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parents:
diff changeset
   220
	}
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parents:
diff changeset
   221
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   222
	switch ( cd->dst_fmt ) {
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parents:
diff changeset
   223
	    case ENCODING_UTF16:
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parents:
diff changeset
   224
		/* Default to host order, need to add byte order marker */
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parents:
diff changeset
   225
		if ( dstlen < 2 ) {
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parents:
diff changeset
   226
			return SDL_ICONV_E2BIG;
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parents:
diff changeset
   227
		}
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parents:
diff changeset
   228
		*(Uint16 *)dst = UNICODE_BOM;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   229
		dst += 2;
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parents:
diff changeset
   230
		dstlen -= 2;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   231
		cd->dst_fmt = ENCODING_UTF16NATIVE;
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parents:
diff changeset
   232
		break;
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parents:
diff changeset
   233
	    case ENCODING_UTF32:
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parents:
diff changeset
   234
		/* Default to host order, need to add byte order marker */
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parents:
diff changeset
   235
		if ( dstlen < 4 ) {
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parents:
diff changeset
   236
			return SDL_ICONV_E2BIG;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   237
		}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   238
		*(Uint32 *)dst = UNICODE_BOM;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   239
		dst += 4;
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parents:
diff changeset
   240
		dstlen -= 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   241
		cd->dst_fmt = ENCODING_UTF32NATIVE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   242
		break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   243
	}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   244
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   245
	total = 0;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   246
	while ( srclen > 0 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   247
		/* Decode a character */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   248
		switch ( cd->src_fmt ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
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parents:
diff changeset
   249
		    case ENCODING_ASCII:
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   250
			{
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   251
				Uint8 *p = (Uint8 *)src;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   252
				ch = (Uint32)(p[0] & 0x7F);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   253
				++src;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   254
				--srclen;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   255
			}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   256
			break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   257
		    case ENCODING_LATIN1:
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   258
			{
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   259
				Uint8 *p = (Uint8 *)src;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   260
				ch = (Uint32)p[0];
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   261
				++src;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   262
				--srclen;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   263
			}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   264
			break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   265
		    case ENCODING_UTF8: /* RFC 3629 */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   266
			{
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   267
				Uint8 *p = (Uint8 *)src;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   268
				size_t left = 0;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   269
				SDL_bool overlong = SDL_FALSE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   270
				if ( p[0] >= 0xFC ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   271
					if ( (p[0] & 0xFE) != 0xFC ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   272
						/* Skip illegal sequences
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   273
						return SDL_ICONV_EILSEQ;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   274
						*/
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   275
						ch = UNKNOWN_UNICODE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   276
					} else {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   277
						if ( p[0] == 0xFC ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   278
							overlong = SDL_TRUE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   279
						}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   280
						ch = (Uint32)(p[0] & 0x01);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   281
						left = 5;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   282
					}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   283
				} else if ( p[0] >= 0xF8 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   284
					if ( (p[0] & 0xFC) != 0xF8 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   285
						/* Skip illegal sequences
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   286
						return SDL_ICONV_EILSEQ;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   287
						*/
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   288
						ch = UNKNOWN_UNICODE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   289
					} else {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   290
						if ( p[0] == 0xF8 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   291
							overlong = SDL_TRUE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   292
						}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   293
						ch = (Uint32)(p[0] & 0x03);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   294
						left = 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   295
					}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   296
				} else if ( p[0] >= 0xF0 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   297
					if ( (p[0] & 0xF8) != 0xF0 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   298
						/* Skip illegal sequences
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   299
						return SDL_ICONV_EILSEQ;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   300
						*/
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   301
						ch = UNKNOWN_UNICODE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   302
					} else {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   303
						if ( p[0] == 0xF0 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   304
							overlong = SDL_TRUE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   305
						}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   306
						ch = (Uint32)(p[0] & 0x07);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   307
						left = 3;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   308
					}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   309
				} else if ( p[0] >= 0xE0 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   310
					if ( (p[0] & 0xF0) != 0xE0 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   311
						/* Skip illegal sequences
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   312
						return SDL_ICONV_EILSEQ;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   313
						*/
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   314
						ch = UNKNOWN_UNICODE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   315
					} else {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   316
						if ( p[0] == 0xE0 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   317
							overlong = SDL_TRUE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   318
						}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   319
						ch = (Uint32)(p[0] & 0x0F);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   320
						left = 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   321
					}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   322
				} else if ( p[0] >= 0xC0 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   323
					if ( (p[0] & 0xE0) != 0xC0 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   324
						/* Skip illegal sequences
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   325
						return SDL_ICONV_EILSEQ;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   326
						*/
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   327
						ch = UNKNOWN_UNICODE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   328
					} else {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   329
						if ( (p[0] & 0xCE) == 0xC0 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   330
							overlong = SDL_TRUE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   331
						}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   332
						ch = (Uint32)(p[0] & 0x1F);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   333
						left = 1;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   334
					}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   335
				} else {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   336
					if ( (p[0] & 0x80) != 0x00 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   337
						/* Skip illegal sequences
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   338
						return SDL_ICONV_EILSEQ;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   339
						*/
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   340
						ch = UNKNOWN_UNICODE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   341
					} else {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   342
						ch = (Uint32)p[0];
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   343
					}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   344
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   345
				++src;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   346
				--srclen;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   347
				if ( srclen < left ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   348
					return SDL_ICONV_EINVAL;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   349
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   350
				while ( left-- ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   351
					++p;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   352
					if ( (p[0] & 0xC0) != 0x80 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   353
						/* Skip illegal sequences
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   354
						return SDL_ICONV_EILSEQ;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   355
						*/
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   356
						ch = UNKNOWN_UNICODE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   357
						break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   358
					}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   359
					ch <<= 6;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   360
					ch |= (p[0] & 0x3F);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   361
					++src;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   362
					--srclen;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   363
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   364
				if ( overlong ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   365
					/* Potential security risk
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   366
					return SDL_ICONV_EILSEQ;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   367
					*/
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   368
					ch = UNKNOWN_UNICODE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   369
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   370
				if ( (ch >= 0xD800 && ch <= 0xDFFF) ||
1519
c99e7a9c9bc9 RFC 3629 restricted the range of characters encoded with UTF-8 to 0000-10FFFF (the UTF-16 accessible range)
Sam Lantinga <slouken@libsdl.org>
parents: 1513
diff changeset
   371
				     (ch == 0xFFFE || ch == 0xFFFF) ||
c99e7a9c9bc9 RFC 3629 restricted the range of characters encoded with UTF-8 to 0000-10FFFF (the UTF-16 accessible range)
Sam Lantinga <slouken@libsdl.org>
parents: 1513
diff changeset
   372
				     ch > 0x10FFFF ) {
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   373
					/* Skip illegal sequences
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   374
					return SDL_ICONV_EILSEQ;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   375
					*/
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   376
					ch = UNKNOWN_UNICODE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   377
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   378
			}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   379
			break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   380
		    case ENCODING_UTF16BE: /* RFC 2781 */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   381
			{
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   382
				Uint8 *p = (Uint8 *)src;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   383
				Uint16 W1, W2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   384
				if ( srclen < 2 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   385
					return SDL_ICONV_EINVAL;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   386
				}
1513
13a3520a13f9 *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1510
diff changeset
   387
				W1 = ((Uint16)p[0] << 8) |
13a3520a13f9 *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1510
diff changeset
   388
				      (Uint16)p[1];
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   389
				src += 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   390
				srclen -= 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   391
				if ( W1 < 0xD800 || W1 > 0xDFFF ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   392
					ch = (Uint32)W1;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   393
					break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   394
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   395
				if ( W1 > 0xDBFF ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   396
					/* Skip illegal sequences
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   397
					return SDL_ICONV_EILSEQ;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   398
					*/
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   399
					ch = UNKNOWN_UNICODE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   400
					break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   401
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   402
				if ( srclen < 2 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   403
					return SDL_ICONV_EINVAL;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   404
				}
1510
720f8bb49d7d Win32 fixes
Sam Lantinga <slouken@libsdl.org>
parents: 1503
diff changeset
   405
				p = (Uint8 *)src;
1513
13a3520a13f9 *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1510
diff changeset
   406
				W2 = ((Uint16)p[0] << 8) |
13a3520a13f9 *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1510
diff changeset
   407
				      (Uint16)p[1];
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   408
				src += 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   409
				srclen -= 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   410
				if ( W2 < 0xDC00 || W2 > 0xDFFF ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   411
					/* Skip illegal sequences
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   412
					return SDL_ICONV_EILSEQ;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   413
					*/
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   414
					ch = UNKNOWN_UNICODE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   415
					break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   416
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   417
				ch = (((Uint32)(W1 & 0x3FF) << 10) |
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   418
				      (Uint32)(W2 & 0x3FF)) + 0x10000;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   419
			}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   420
			break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   421
		    case ENCODING_UTF16LE: /* RFC 2781 */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   422
			{
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   423
				Uint8 *p = (Uint8 *)src;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   424
				Uint16 W1, W2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   425
				if ( srclen < 2 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   426
					return SDL_ICONV_EINVAL;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   427
				}
1513
13a3520a13f9 *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1510
diff changeset
   428
				W1 = ((Uint16)p[1] << 8) |
13a3520a13f9 *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1510
diff changeset
   429
				      (Uint16)p[0];
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   430
				src += 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   431
				srclen -= 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   432
				if ( W1 < 0xD800 || W1 > 0xDFFF ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   433
					ch = (Uint32)W1;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   434
					break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   435
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   436
				if ( W1 > 0xDBFF ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   437
					/* Skip illegal sequences
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   438
					return SDL_ICONV_EILSEQ;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   439
					*/
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   440
					ch = UNKNOWN_UNICODE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   441
					break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   442
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   443
				if ( srclen < 2 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   444
					return SDL_ICONV_EINVAL;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   445
				}
1510
720f8bb49d7d Win32 fixes
Sam Lantinga <slouken@libsdl.org>
parents: 1503
diff changeset
   446
				p = (Uint8 *)src;
1513
13a3520a13f9 *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1510
diff changeset
   447
				W2 = ((Uint16)p[1] << 8) |
13a3520a13f9 *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1510
diff changeset
   448
				      (Uint16)p[0];
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   449
				src += 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   450
				srclen -= 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   451
				if ( W2 < 0xDC00 || W2 > 0xDFFF ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   452
					/* Skip illegal sequences
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   453
					return SDL_ICONV_EILSEQ;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   454
					*/
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   455
					ch = UNKNOWN_UNICODE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   456
					break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   457
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   458
				ch = (((Uint32)(W1 & 0x3FF) << 10) |
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   459
				      (Uint32)(W2 & 0x3FF)) + 0x10000;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   460
			}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   461
			break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   462
		    case ENCODING_UTF32BE:
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   463
			{
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   464
				Uint8 *p = (Uint8 *)src;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   465
				if ( srclen < 4 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   466
					return SDL_ICONV_EINVAL;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   467
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   468
				ch = ((Uint32)p[0] << 24) |
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   469
				     ((Uint32)p[1] << 16) |
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   470
				     ((Uint32)p[2] << 8) |
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   471
				      (Uint32)p[3];
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   472
				src += 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   473
				srclen -= 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   474
			}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   475
			break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   476
		    case ENCODING_UTF32LE:
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   477
			{
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   478
				Uint8 *p = (Uint8 *)src;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   479
				if ( srclen < 4 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   480
					return SDL_ICONV_EINVAL;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   481
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   482
				ch = ((Uint32)p[3] << 24) |
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   483
				     ((Uint32)p[2] << 16) |
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   484
				     ((Uint32)p[1] << 8) |
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   485
				      (Uint32)p[0];
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   486
				src += 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   487
				srclen -= 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   488
			}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   489
			break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   490
		    case ENCODING_UCS2:
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   491
			{
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   492
				Uint16 *p = (Uint16 *)src;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   493
				if ( srclen < 2 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   494
					return SDL_ICONV_EINVAL;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   495
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   496
				ch = *p;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   497
				src += 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   498
				srclen -= 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   499
			}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   500
			break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   501
		    case ENCODING_UCS4:
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   502
			{
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   503
				Uint32 *p = (Uint32 *)src;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   504
				if ( srclen < 4 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   505
					return SDL_ICONV_EINVAL;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   506
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   507
				ch = *p;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   508
				src += 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   509
				srclen -= 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   510
			}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   511
			break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   512
		}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   513
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   514
		/* Encode a character */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   515
		switch ( cd->dst_fmt ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   516
		    case ENCODING_ASCII:
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   517
			{
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   518
				Uint8 *p = (Uint8 *)dst;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   519
				if ( dstlen < 1 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   520
					return SDL_ICONV_E2BIG;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   521
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   522
				if ( ch > 0x7F ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   523
					*p = UNKNOWN_ASCII;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   524
				} else {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   525
					*p = (Uint8)ch;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   526
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   527
				++dst;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   528
				--dstlen;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   529
			}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   530
			break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   531
		    case ENCODING_LATIN1:
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   532
			{
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   533
				Uint8 *p = (Uint8 *)dst;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   534
				if ( dstlen < 1 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   535
					return SDL_ICONV_E2BIG;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   536
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   537
				if ( ch > 0xFF ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   538
					*p = UNKNOWN_ASCII;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   539
				} else {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   540
					*p = (Uint8)ch;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   541
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   542
				++dst;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   543
				--dstlen;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   544
			}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   545
			break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   546
		    case ENCODING_UTF8: /* RFC 3629 */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   547
			{
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   548
				Uint8 *p = (Uint8 *)dst;
1519
c99e7a9c9bc9 RFC 3629 restricted the range of characters encoded with UTF-8 to 0000-10FFFF (the UTF-16 accessible range)
Sam Lantinga <slouken@libsdl.org>
parents: 1513
diff changeset
   549
				if ( ch > 0x10FFFF ) {
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   550
					ch = UNKNOWN_UNICODE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   551
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   552
				if ( ch <= 0x7F ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   553
					if ( dstlen < 1 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   554
						return SDL_ICONV_E2BIG;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   555
					}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   556
					*p = (Uint8)ch;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   557
					++dst;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   558
					--dstlen;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   559
				} else if ( ch <= 0x7FF ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   560
					if ( dstlen < 2 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   561
						return SDL_ICONV_E2BIG;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   562
					}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   563
					p[0] = 0xC0 | (Uint8)((ch >> 6) & 0x1F);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   564
					p[1] = 0x80 | (Uint8)(ch & 0x3F);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   565
					dst += 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   566
					dstlen -= 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   567
				} else if ( ch <= 0xFFFF ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   568
					if ( dstlen < 3 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   569
						return SDL_ICONV_E2BIG;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   570
					}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   571
					p[0] = 0xE0 | (Uint8)((ch >> 12) & 0x0F);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   572
					p[1] = 0x80 | (Uint8)((ch >> 6) & 0x3F);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   573
					p[2] = 0x80 | (Uint8)(ch & 0x3F);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   574
					dst += 3;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   575
					dstlen -= 3;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   576
				} else if ( ch <= 0x1FFFFF ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   577
					if ( dstlen < 4 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   578
						return SDL_ICONV_E2BIG;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   579
					}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   580
					p[0] = 0xF0 | (Uint8)((ch >> 18) & 0x07);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   581
					p[1] = 0x80 | (Uint8)((ch >> 12) & 0x3F);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   582
					p[2] = 0x80 | (Uint8)((ch >> 6) & 0x3F);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   583
					p[3] = 0x80 | (Uint8)(ch & 0x3F);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   584
					dst += 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   585
					dstlen -= 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   586
				} else if ( ch <= 0x3FFFFFF ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   587
					if ( dstlen < 5 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   588
						return SDL_ICONV_E2BIG;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   589
					}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   590
					p[0] = 0xF8 | (Uint8)((ch >> 24) & 0x03);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   591
					p[1] = 0x80 | (Uint8)((ch >> 18) & 0x3F);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   592
					p[2] = 0x80 | (Uint8)((ch >> 12) & 0x3F);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   593
					p[3] = 0x80 | (Uint8)((ch >> 6) & 0x3F);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   594
					p[4] = 0x80 | (Uint8)(ch & 0x3F);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   595
					dst += 5;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   596
					dstlen -= 5;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   597
				} else {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   598
					if ( dstlen < 6 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   599
						return SDL_ICONV_E2BIG;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   600
					}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   601
					p[0] = 0xFC | (Uint8)((ch >> 30) & 0x01);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   602
					p[1] = 0x80 | (Uint8)((ch >> 24) & 0x3F);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   603
					p[2] = 0x80 | (Uint8)((ch >> 18) & 0x3F);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   604
					p[3] = 0x80 | (Uint8)((ch >> 12) & 0x3F);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   605
					p[4] = 0x80 | (Uint8)((ch >> 6) & 0x3F);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   606
					p[5] = 0x80 | (Uint8)(ch & 0x3F);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   607
					dst += 6;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   608
					dstlen -= 6;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   609
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   610
			}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   611
			break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   612
		    case ENCODING_UTF16BE: /* RFC 2781 */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   613
			{
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   614
				Uint8 *p = (Uint8 *)dst;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   615
				if ( ch > 0x10FFFF ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   616
					ch = UNKNOWN_UNICODE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   617
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   618
				if ( ch < 0x10000 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   619
					if ( dstlen < 2 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   620
						return SDL_ICONV_E2BIG;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   621
					}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   622
					p[0] = (Uint8)(ch >> 8);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   623
					p[1] = (Uint8)ch;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   624
					dst += 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   625
					dstlen -= 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   626
				} else {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   627
					Uint16 W1, W2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   628
					if ( dstlen < 4 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   629
						return SDL_ICONV_E2BIG;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   630
					}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   631
					ch = ch - 0x10000;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   632
					W1 = 0xD800 | (Uint16)((ch >> 10) & 0x3FF);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   633
					W2 = 0xDC00 | (Uint16)(ch & 0x3FF);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   634
					p[0] = (Uint8)(W1 >> 8);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   635
					p[1] = (Uint8)W1;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   636
					p[2] = (Uint8)(W2 >> 8);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   637
					p[3] = (Uint8)W2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   638
					dst += 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   639
					dstlen -= 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   640
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   641
			}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   642
			break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   643
		    case ENCODING_UTF16LE: /* RFC 2781 */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   644
			{
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   645
				Uint8 *p = (Uint8 *)dst;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   646
				if ( ch > 0x10FFFF ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   647
					ch = UNKNOWN_UNICODE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   648
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   649
				if ( ch < 0x10000 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   650
					if ( dstlen < 2 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   651
						return SDL_ICONV_E2BIG;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   652
					}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   653
					p[1] = (Uint8)(ch >> 8);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   654
					p[0] = (Uint8)ch;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   655
					dst += 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   656
					dstlen -= 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   657
				} else {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   658
					Uint16 W1, W2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   659
					if ( dstlen < 4 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   660
						return SDL_ICONV_E2BIG;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   661
					}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   662
					ch = ch - 0x10000;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   663
					W1 = 0xD800 | (Uint16)((ch >> 10) & 0x3FF);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   664
					W2 = 0xDC00 | (Uint16)(ch & 0x3FF);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   665
					p[1] = (Uint8)(W1 >> 8);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   666
					p[0] = (Uint8)W1;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   667
					p[3] = (Uint8)(W2 >> 8);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   668
					p[2] = (Uint8)W2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   669
					dst += 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   670
					dstlen -= 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   671
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   672
			}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   673
			break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   674
		    case ENCODING_UTF32BE:
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   675
			{
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   676
				Uint8 *p = (Uint8 *)dst;
1502
d403a39389da UTF-32 by definition can't handle characters higher than 0x10FFFF
Sam Lantinga <slouken@libsdl.org>
parents: 1501
diff changeset
   677
				if ( ch > 0x10FFFF ) {
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   678
					ch = UNKNOWN_UNICODE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   679
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   680
				if ( dstlen < 4 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   681
					return SDL_ICONV_E2BIG;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   682
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   683
				p[0] = (Uint8)(ch >> 24);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   684
				p[1] = (Uint8)(ch >> 16);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   685
				p[2] = (Uint8)(ch >> 8);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   686
				p[3] = (Uint8)ch;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   687
				dst += 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   688
				dstlen -= 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   689
			}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   690
			break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   691
		    case ENCODING_UTF32LE:
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   692
			{
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   693
				Uint8 *p = (Uint8 *)dst;
1502
d403a39389da UTF-32 by definition can't handle characters higher than 0x10FFFF
Sam Lantinga <slouken@libsdl.org>
parents: 1501
diff changeset
   694
				if ( ch > 0x10FFFF ) {
1501
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   695
					ch = UNKNOWN_UNICODE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   696
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   697
				if ( dstlen < 4 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   698
					return SDL_ICONV_E2BIG;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   699
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   700
				p[3] = (Uint8)(ch >> 24);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   701
				p[2] = (Uint8)(ch >> 16);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   702
				p[1] = (Uint8)(ch >> 8);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   703
				p[0] = (Uint8)ch;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   704
				dst += 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   705
				dstlen -= 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   706
			}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   707
			break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   708
		    case ENCODING_UCS2:
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   709
			{
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   710
				Uint16 *p = (Uint16 *)dst;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   711
				if ( ch > 0xFFFF ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   712
					ch = UNKNOWN_UNICODE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   713
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   714
				if ( dstlen < 2 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   715
					return SDL_ICONV_E2BIG;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   716
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   717
				*p = (Uint16)ch;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   718
				dst += 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   719
				dstlen -= 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   720
			}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   721
			break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   722
		    case ENCODING_UCS4:
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   723
			{
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   724
				Uint32 *p = (Uint32 *)dst;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   725
				if ( ch > 0x7FFFFFFF ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   726
					ch = UNKNOWN_UNICODE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   727
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   728
				if ( dstlen < 4 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   729
					return SDL_ICONV_E2BIG;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   730
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   731
				*p = ch;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   732
				dst += 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   733
				dstlen -= 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   734
			}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   735
			break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   736
		}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   737
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   738
		/* Update state */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   739
		*inbuf = src;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   740
		*inbytesleft = srclen;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   741
		*outbuf = dst;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   742
		*outbytesleft = dstlen;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   743
		++total;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   744
	}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   745
	return total;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   746
}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   747
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   748
int SDL_iconv_close(SDL_iconv_t cd)
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   749
{
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   750
	if ( cd && cd != (SDL_iconv_t)-1 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   751
		SDL_free(cd);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   752
	}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   753
	return 0;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   754
}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   755
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   756
#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
   757
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   758
char *SDL_iconv_string(const char *tocode, const char *fromcode, char *inbuf, size_t inbytesleft)
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   759
{
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   760
	SDL_iconv_t cd;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   761
	char *string;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   762
	size_t stringsize;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   763
	char *outbuf;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   764
	size_t outbytesleft;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   765
	size_t retCode = 0;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   766
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   767
	cd = SDL_iconv_open(tocode, fromcode);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   768
	if ( cd == (SDL_iconv_t)-1 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   769
		return NULL;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   770
	}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   771
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   772
	stringsize = inbytesleft > 4 ? inbytesleft : 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   773
	string = SDL_malloc(stringsize);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   774
	if ( !string ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   775
		SDL_iconv_close(cd);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   776
		return NULL;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   777
	}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   778
	outbuf = string;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   779
	outbytesleft = stringsize;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   780
	SDL_memset(outbuf, 0, 4);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   781
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   782
	while ( inbytesleft > 0 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   783
		retCode = SDL_iconv(cd, &inbuf, &inbytesleft, &outbuf, &outbytesleft);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   784
		switch (retCode) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   785
		    case SDL_ICONV_E2BIG:
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   786
			{
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   787
				char *oldstring = string;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   788
				stringsize *= 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   789
				string = SDL_realloc(string, stringsize);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   790
				if ( !string ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   791
					SDL_iconv_close(cd);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   792
					return NULL;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   793
				}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   794
				outbuf = string + (outbuf - oldstring);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   795
				outbytesleft = stringsize - (outbuf - string);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   796
				SDL_memset(outbuf, 0, 4);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   797
			}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   798
			break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   799
		    case SDL_ICONV_EILSEQ:
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   800
			/* Try skipping some input data - not perfect, but... */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   801
			++inbuf;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   802
			--inbytesleft;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   803
			break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   804
		    case SDL_ICONV_EINVAL:
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   805
		    case SDL_ICONV_ERROR:
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   806
			/* We can't continue... */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   807
			inbytesleft = 0;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   808
			break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   809
		}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   810
	}
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   811
	SDL_iconv_close(cd);
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
	return string;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   814
}