sdl-ios-xcode: src/stdlib/SDL

annotate src/stdlib/SDL_iconv.c @ 5084:4c3c2599559b SDL-1.2

Fixed bug #1080 Markus Rathgeb 2011-01-23 14:34:23 PST With kernel 2.6.31 the struct input_absinfo defined in linux/input.h changed. A field "__s32 resolution" was added at the end of the struct. Because the macro EVIOCGABS(abs) is using the struct input_absinfo, it would be better (IMHO) to change the declaration of variable values to "int values[sizeof(struct input_absinfo) / sizeof(int)];" or using "struct input_absinfo" directly.

author	Sam Lantinga <slouken@libsdl.org>
date	Mon, 24 Jan 2011 14:31:32 -0800
parents	1524d3237820
children

rev	line source
1501 73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1 /*
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	2 SDL - Simple DirectMedia Layer
4159 a1b03ba2fcd0 Updated copyright date Sam Lantinga <slouken@libsdl.org> parents: 4055 diff changeset	3 Copyright (C) 1997-2009 Sam Lantinga
1501 73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	4
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	5 This library is free software; you can redistribute it and/or
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	6 modify it under the terms of the GNU Lesser General Public
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	7 License as published by the Free Software Foundation; either
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	8 version 2.1 of the License, or (at your option) any later version.
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	9
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	13 Lesser General Public License for more details.
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	14
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	15 You should have received a copy of the GNU Lesser General Public
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	16 License along with this library; if not, write to the Free Software
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	18
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	19 Sam Lantinga
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	20 slouken@libsdl.org
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	21 */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	22 #include "SDL_config.h"
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	23
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	24 /* This file contains portable iconv functions for SDL */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	25
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	26 #include "SDL_stdinc.h"
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	27 #include "SDL_endian.h"
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	28
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	29 #ifdef HAVE_ICONV
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	30
3987 00486a9c2893 iconv() doesn't write to the data, just make compilers happy Sam Lantinga <slouken@libsdl.org> parents: 3986 diff changeset	31 /* Depending on which standard the iconv() was implemented with,
00486a9c2893 iconv() doesn't write to the data, just make compilers happy Sam Lantinga <slouken@libsdl.org> parents: 3986 diff changeset	32 iconv() may or may not use const char ** for the inbuf param.
00486a9c2893 iconv() doesn't write to the data, just make compilers happy Sam Lantinga <slouken@libsdl.org> parents: 3986 diff changeset	33 If we get this wrong, it's just a warning, so no big deal.
00486a9c2893 iconv() doesn't write to the data, just make compilers happy Sam Lantinga <slouken@libsdl.org> parents: 3986 diff changeset	34 */
00486a9c2893 iconv() doesn't write to the data, just make compilers happy Sam Lantinga <slouken@libsdl.org> parents: 3986 diff changeset	35 #if defined(_XGP6) \|\| \
00486a9c2893 iconv() doesn't write to the data, just make compilers happy Sam Lantinga <slouken@libsdl.org> parents: 3986 diff changeset	36 defined(__GLIBC__) && ((__GLIBC__ > 2) \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2))
00486a9c2893 iconv() doesn't write to the data, just make compilers happy Sam Lantinga <slouken@libsdl.org> parents: 3986 diff changeset	37 #define ICONV_INBUF_NONCONST
00486a9c2893 iconv() doesn't write to the data, just make compilers happy Sam Lantinga <slouken@libsdl.org> parents: 3986 diff changeset	38 #endif
00486a9c2893 iconv() doesn't write to the data, just make compilers happy Sam Lantinga <slouken@libsdl.org> parents: 3986 diff changeset	39
1501 73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	40 #include <errno.h>
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	41
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	42 size_t SDL_iconv(SDL_iconv_t cd,
3984 b74530a1dad6 Better fix for bug 419 Sam Lantinga <slouken@libsdl.org> parents: 3918 diff changeset	43 const char *inbuf, size_t inbytesleft,
1501 73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	44 char *outbuf, 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	45 {
3985 2f8efcf14c83 Okay, apparently the newer standard specifies char** for the inbuf Sam Lantinga <slouken@libsdl.org> parents: 3984 diff changeset	46 size_t retCode;
3987 00486a9c2893 iconv() doesn't write to the data, just make compilers happy Sam Lantinga <slouken@libsdl.org> parents: 3986 diff changeset	47 #ifdef ICONV_INBUF_NONCONST
00486a9c2893 iconv() doesn't write to the data, just make compilers happy Sam Lantinga <slouken@libsdl.org> parents: 3986 diff changeset	48 retCode = iconv(cd, (char **)inbuf, inbytesleft, outbuf, outbytesleft);
3985 2f8efcf14c83 Okay, apparently the newer standard specifies char** for the inbuf Sam Lantinga <slouken@libsdl.org> parents: 3984 diff changeset	49 #else
3987 00486a9c2893 iconv() doesn't write to the data, just make compilers happy Sam Lantinga <slouken@libsdl.org> parents: 3986 diff changeset	50 retCode = iconv(cd, inbuf, inbytesleft, outbuf, outbytesleft);
3985 2f8efcf14c83 Okay, apparently the newer standard specifies char** for the inbuf Sam Lantinga <slouken@libsdl.org> parents: 3984 diff changeset	51 #endif
1501 73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	52 if ( retCode == (size_t)-1 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	53 switch(errno) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	54 case E2BIG:
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	55 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	56 case EILSEQ:
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	57 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	58 case EINVAL:
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	59 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	60 default:
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	61 return 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	62 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	63 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	64 return retCode;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	65 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	66
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	67 #else
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	68
1503 5e4dad24a5de props yo Sam Lantinga <slouken@libsdl.org> parents: 1502 diff changeset	69 /* Lots of useful information on Unicode at:
5e4dad24a5de props yo Sam Lantinga <slouken@libsdl.org> parents: 1502 diff changeset	70 http://www.cl.cam.ac.uk/~mgk25/unicode.html
5e4dad24a5de props yo Sam Lantinga <slouken@libsdl.org> parents: 1502 diff changeset	71 */
5e4dad24a5de props yo Sam Lantinga <slouken@libsdl.org> parents: 1502 diff changeset	72
1501 73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	73 #define UNICODE_BOM 0xFEFF
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	74
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	75 #define UNKNOWN_ASCII '?'
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	76 #define UNKNOWN_UNICODE 0xFFFD
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	77
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	78 enum {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	79 ENCODING_UNKNOWN,
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	80 ENCODING_ASCII,
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	81 ENCODING_LATIN1,
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	82 ENCODING_UTF8,
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	83 ENCODING_UTF16, /* Needs byte order marker */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	84 ENCODING_UTF16BE,
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	85 ENCODING_UTF16LE,
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	86 ENCODING_UTF32, /* Needs byte order marker */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	87 ENCODING_UTF32BE,
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	88 ENCODING_UTF32LE,
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	89 ENCODING_UCS2, /* Native byte order assumed */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	90 ENCODING_UCS4, /* Native byte order assumed */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	91 };
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	92 #if SDL_BYTEORDER == SDL_BIG_ENDIAN
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	93 #define ENCODING_UTF16NATIVE ENCODING_UTF16BE
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	94 #define ENCODING_UTF32NATIVE ENCODING_UTF32BE
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	95 #else
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	96 #define ENCODING_UTF16NATIVE ENCODING_UTF16LE
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	97 #define ENCODING_UTF32NATIVE ENCODING_UTF32LE
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	98 #endif
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	99
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	100 struct _SDL_iconv_t
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	101 {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	102 int src_fmt;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	103 int dst_fmt;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	104 };
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	105
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	106 static struct {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	107 const char *name;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	108 int format;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	109 } encodings[] = {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	110 { "ASCII", ENCODING_ASCII },
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	111 { "US-ASCII", ENCODING_ASCII },
3997 6a4f3a32c2e6 Fixed bug #349 Sam Lantinga <slouken@libsdl.org> parents: 3987 diff changeset	112 { "8859-1", ENCODING_LATIN1 },
1501 73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	113 { "ISO-8859-1", ENCODING_LATIN1 },
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	114 { "UTF8", ENCODING_UTF8 },
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	115 { "UTF-8", ENCODING_UTF8 },
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	116 { "UTF16", ENCODING_UTF16 },
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	117 { "UTF-16", ENCODING_UTF16 },
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	118 { "UTF16BE", ENCODING_UTF16BE },
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	119 { "UTF-16BE", ENCODING_UTF16BE },
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	120 { "UTF16LE", ENCODING_UTF16LE },
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	121 { "UTF-16LE", ENCODING_UTF16LE },
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	122 { "UTF32", ENCODING_UTF32 },
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	123 { "UTF-32", ENCODING_UTF32 },
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	124 { "UTF32BE", ENCODING_UTF32BE },
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	125 { "UTF-32BE", ENCODING_UTF32BE },
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	126 { "UTF32LE", ENCODING_UTF32LE },
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	127 { "UTF-32LE", ENCODING_UTF32LE },
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	128 { "UCS2", ENCODING_UCS2 },
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	129 { "UCS-2", ENCODING_UCS2 },
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	130 { "UCS4", ENCODING_UCS4 },
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	131 { "UCS-4", ENCODING_UCS4 },
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	132 };
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	133
4055 6ed1fded55ff Ryan's fix is still good for the built-in version of iconv_open() Sam Lantinga <slouken@libsdl.org> parents: 4054 diff changeset	134 static const char getlocale(char buffer, size_t bufsize)
4053 0aadbc81c497 Fixed bug #455 Sam Lantinga <slouken@libsdl.org> parents: 3998 diff changeset	135 {
0aadbc81c497 Fixed bug #455 Sam Lantinga <slouken@libsdl.org> parents: 3998 diff changeset	136 const char *lang;
4055 6ed1fded55ff Ryan's fix is still good for the built-in version of iconv_open() Sam Lantinga <slouken@libsdl.org> parents: 4054 diff changeset	137 char *ptr;
4053 0aadbc81c497 Fixed bug #455 Sam Lantinga <slouken@libsdl.org> parents: 3998 diff changeset	138
0aadbc81c497 Fixed bug #455 Sam Lantinga <slouken@libsdl.org> parents: 3998 diff changeset	139 lang = SDL_getenv("LC_ALL");
0aadbc81c497 Fixed bug #455 Sam Lantinga <slouken@libsdl.org> parents: 3998 diff changeset	140 if ( !lang ) {
0aadbc81c497 Fixed bug #455 Sam Lantinga <slouken@libsdl.org> parents: 3998 diff changeset	141 lang = SDL_getenv("LC_CTYPE");
0aadbc81c497 Fixed bug #455 Sam Lantinga <slouken@libsdl.org> parents: 3998 diff changeset	142 }
0aadbc81c497 Fixed bug #455 Sam Lantinga <slouken@libsdl.org> parents: 3998 diff changeset	143 if ( !lang ) {
0aadbc81c497 Fixed bug #455 Sam Lantinga <slouken@libsdl.org> parents: 3998 diff changeset	144 lang = SDL_getenv("LC_MESSAGES");
0aadbc81c497 Fixed bug #455 Sam Lantinga <slouken@libsdl.org> parents: 3998 diff changeset	145 }
0aadbc81c497 Fixed bug #455 Sam Lantinga <slouken@libsdl.org> parents: 3998 diff changeset	146 if ( !lang ) {
0aadbc81c497 Fixed bug #455 Sam Lantinga <slouken@libsdl.org> parents: 3998 diff changeset	147 lang = SDL_getenv("LANG");
0aadbc81c497 Fixed bug #455 Sam Lantinga <slouken@libsdl.org> parents: 3998 diff changeset	148 }
0aadbc81c497 Fixed bug #455 Sam Lantinga <slouken@libsdl.org> parents: 3998 diff changeset	149 if ( !lang \|\| !*lang \|\| SDL_strcmp(lang, "C") == 0 ) {
0aadbc81c497 Fixed bug #455 Sam Lantinga <slouken@libsdl.org> parents: 3998 diff changeset	150 lang = "ASCII";
0aadbc81c497 Fixed bug #455 Sam Lantinga <slouken@libsdl.org> parents: 3998 diff changeset	151 }
4055 6ed1fded55ff Ryan's fix is still good for the built-in version of iconv_open() Sam Lantinga <slouken@libsdl.org> parents: 4054 diff changeset	152
6ed1fded55ff Ryan's fix is still good for the built-in version of iconv_open() Sam Lantinga <slouken@libsdl.org> parents: 4054 diff changeset	153 /* We need to trim down strings like "en_US.UTF-8@blah" to "UTF-8" */
6ed1fded55ff Ryan's fix is still good for the built-in version of iconv_open() Sam Lantinga <slouken@libsdl.org> parents: 4054 diff changeset	154 ptr = SDL_strchr(lang, '.');
6ed1fded55ff Ryan's fix is still good for the built-in version of iconv_open() Sam Lantinga <slouken@libsdl.org> parents: 4054 diff changeset	155 if (ptr != NULL) {
6ed1fded55ff Ryan's fix is still good for the built-in version of iconv_open() Sam Lantinga <slouken@libsdl.org> parents: 4054 diff changeset	156 lang = ptr + 1;
6ed1fded55ff Ryan's fix is still good for the built-in version of iconv_open() Sam Lantinga <slouken@libsdl.org> parents: 4054 diff changeset	157 }
6ed1fded55ff Ryan's fix is still good for the built-in version of iconv_open() Sam Lantinga <slouken@libsdl.org> parents: 4054 diff changeset	158
6ed1fded55ff Ryan's fix is still good for the built-in version of iconv_open() Sam Lantinga <slouken@libsdl.org> parents: 4054 diff changeset	159 SDL_strlcpy(buffer, lang, bufsize);
6ed1fded55ff Ryan's fix is still good for the built-in version of iconv_open() Sam Lantinga <slouken@libsdl.org> parents: 4054 diff changeset	160 ptr = SDL_strchr(buffer, '@');
6ed1fded55ff Ryan's fix is still good for the built-in version of iconv_open() Sam Lantinga <slouken@libsdl.org> parents: 4054 diff changeset	161 if (ptr != NULL) {
6ed1fded55ff Ryan's fix is still good for the built-in version of iconv_open() Sam Lantinga <slouken@libsdl.org> parents: 4054 diff changeset	162 ptr = '\0'; / chop end of string. */
6ed1fded55ff Ryan's fix is still good for the built-in version of iconv_open() Sam Lantinga <slouken@libsdl.org> parents: 4054 diff changeset	163 }
6ed1fded55ff Ryan's fix is still good for the built-in version of iconv_open() Sam Lantinga <slouken@libsdl.org> parents: 4054 diff changeset	164
6ed1fded55ff Ryan's fix is still good for the built-in version of iconv_open() Sam Lantinga <slouken@libsdl.org> parents: 4054 diff changeset	165 return buffer;
4053 0aadbc81c497 Fixed bug #455 Sam Lantinga <slouken@libsdl.org> parents: 3998 diff changeset	166 }
0aadbc81c497 Fixed bug #455 Sam Lantinga <slouken@libsdl.org> parents: 3998 diff changeset	167
1501 73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	168 SDL_iconv_t SDL_iconv_open(const char tocode, const char fromcode)
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	169 {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	170 int src_fmt = ENCODING_UNKNOWN;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	171 int dst_fmt = ENCODING_UNKNOWN;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	172 int i;
4055 6ed1fded55ff Ryan's fix is still good for the built-in version of iconv_open() Sam Lantinga <slouken@libsdl.org> parents: 4054 diff changeset	173 char fromcode_buffer[64];
6ed1fded55ff Ryan's fix is still good for the built-in version of iconv_open() Sam Lantinga <slouken@libsdl.org> parents: 4054 diff changeset	174 char tocode_buffer[64];
1501 73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	175
4053 0aadbc81c497 Fixed bug #455 Sam Lantinga <slouken@libsdl.org> parents: 3998 diff changeset	176 if ( !fromcode \|\| !*fromcode ) {
4055 6ed1fded55ff Ryan's fix is still good for the built-in version of iconv_open() Sam Lantinga <slouken@libsdl.org> parents: 4054 diff changeset	177 fromcode = getlocale(fromcode_buffer, sizeof(fromcode_buffer));
4053 0aadbc81c497 Fixed bug #455 Sam Lantinga <slouken@libsdl.org> parents: 3998 diff changeset	178 }
0aadbc81c497 Fixed bug #455 Sam Lantinga <slouken@libsdl.org> parents: 3998 diff changeset	179 if ( !tocode \|\| !*tocode ) {
4055 6ed1fded55ff Ryan's fix is still good for the built-in version of iconv_open() Sam Lantinga <slouken@libsdl.org> parents: 4054 diff changeset	180 tocode = getlocale(tocode_buffer, sizeof(tocode_buffer));
4053 0aadbc81c497 Fixed bug #455 Sam Lantinga <slouken@libsdl.org> parents: 3998 diff changeset	181 }
1501 73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	182 for ( i = 0; i < SDL_arraysize(encodings); ++i ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	183 if ( SDL_strcasecmp(fromcode, encodings[i].name) == 0 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	184 src_fmt = encodings[i].format;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	185 if ( dst_fmt != ENCODING_UNKNOWN ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	186 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	187 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	188 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	189 if ( SDL_strcasecmp(tocode, encodings[i].name) == 0 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	190 dst_fmt = encodings[i].format;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	191 if ( src_fmt != ENCODING_UNKNOWN ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	192 break;
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 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	194 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	195 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	196 if ( src_fmt != ENCODING_UNKNOWN && dst_fmt != ENCODING_UNKNOWN ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	197 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 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	198 if ( cd ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	199 cd->src_fmt = src_fmt;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	200 cd->dst_fmt = dst_fmt;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	201 return cd;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	202 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	203 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	204 return (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	205 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	206
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	207 size_t SDL_iconv(SDL_iconv_t cd,
3918 f16c15f3bc2b Minor const correctness patch to SDL_iconv. Ryan C. Gordon <icculus@icculus.org> parents: 1849 diff changeset	208 const char *inbuf, size_t inbytesleft,
1501 73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	209 char *outbuf, 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	210 {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	211 /* For simplicity, we'll convert everything to and from UCS-4 */
3918 f16c15f3bc2b Minor const correctness patch to SDL_iconv. Ryan C. Gordon <icculus@icculus.org> parents: 1849 diff changeset	212 const char *src;
f16c15f3bc2b Minor const correctness patch to SDL_iconv. Ryan C. Gordon <icculus@icculus.org> parents: 1849 diff changeset	213 char *dst;
1501 73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	214 size_t srclen, dstlen;
1849 b5a4ac87b98c Fixed uninitialized variable warnings Sam Lantinga <slouken@libsdl.org> parents: 1519 diff changeset	215 Uint32 ch = 0;
1501 73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	216 size_t total;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	217
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	218 if ( !inbuf \|\| !*inbuf ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	219 /* Reset the context */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	220 return 0;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	221 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	222 if ( !outbuf \|\| !outbuf \|\| !outbytesleft \|\| !outbytesleft ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	223 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	224 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	225 src = *inbuf;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	226 srclen = (inbytesleft ? *inbytesleft : 0);
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	227 dst = *outbuf;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	228 dstlen = *outbytesleft;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	229
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	230 switch ( cd->src_fmt ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	231 case ENCODING_UTF16:
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	232 /* Scan for a byte order marker */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	233 {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	234 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	235 size_t n = srclen / 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	236 while ( n ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	237 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	238 cd->src_fmt = ENCODING_UTF16BE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	239 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	240 } else if ( p[0] == 0xFE && p[1] == 0xFF ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	241 cd->src_fmt = ENCODING_UTF16LE;
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 p += 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	245 --n;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	246 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	247 if ( n == 0 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	248 /* We can't tell, default to host order */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	249 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	250 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	251 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	252 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	253 case ENCODING_UTF32:
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	254 /* Scan for a byte order marker */
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 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	257 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	258 while ( n ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	259 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	260 p[2] == 0x00 && p[3] == 0x00 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	261 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	262 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	263 } else if ( p[0] == 0x00 && p[1] == 0x00 &&
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	264 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	265 cd->src_fmt = ENCODING_UTF32LE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	266 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	267 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	268 p += 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	269 --n;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	270 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	271 if ( n == 0 ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	272 /* We can't tell, default to host order */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	273 cd->src_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	274 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	275 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	276 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	277 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	278
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	279 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	280 case ENCODING_UTF16:
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	281 /* Default to host order, need to add byte order marker */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	282 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	283 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	284 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	285 (Uint16 )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	286 dst += 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	287 dstlen -= 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	288 cd->dst_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	289 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	290 case ENCODING_UTF32:
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	291 /* Default to host order, need to add byte order marker */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	292 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	293 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	294 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	295 (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	296 dst += 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	297 dstlen -= 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	298 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	299 break;
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
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	302 total = 0;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	303 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	304 /* 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	305 switch ( cd->src_fmt ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	306 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	307 {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	308 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	309 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	310 ++src;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	311 --srclen;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	312 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	313 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	314 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	315 {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	316 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	317 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	318 ++src;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	319 --srclen;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	320 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	321 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	322 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	323 {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	324 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	325 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	326 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	327 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	328 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	329 /* 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	330 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	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 = UNKNOWN_UNICODE;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	333 } else {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	334 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	335 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	336 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	337 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	338 left = 5;
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 } 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	341 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	342 /* 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	343 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	344 */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	345 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	346 } else {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	347 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	348 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	349 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	350 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	351 left = 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	352 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	353 } 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	354 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	355 /* 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	356 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	357 */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	358 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	359 } else {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	360 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	361 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	362 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	363 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	364 left = 3;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	365 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	366 } 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	367 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	368 /* 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	369 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	370 */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	371 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	372 } else {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	373 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	374 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	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 = (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	377 left = 2;
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 } 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	380 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	381 /* 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	382 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	383 */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	384 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	385 } else {
4388 1524d3237820 Fixed bug #896 Sam Lantinga <slouken@libsdl.org> parents: 4243 diff changeset	386 if ( (p[0] & 0xDE) == 0xC0 ) {
1501 73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	387 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	388 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	389 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	390 left = 1;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	391 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	392 } else {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	393 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	394 /* 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	395 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	396 */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	397 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	398 } else {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	399 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	400 }
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 ++src;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	403 --srclen;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	404 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	405 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	406 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	407 while ( left-- ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	408 ++p;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	409 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	410 /* 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	411 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	412 */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	413 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	414 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	415 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	416 ch <<= 6;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	417 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	418 ++src;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	419 --srclen;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	420 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	421 if ( overlong ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	422 /* 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	423 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	424 */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	425 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	426 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	427 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	428 (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	429 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	430 /* 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	431 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	432 */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	433 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	434 }
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 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	437 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	438 {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	439 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	440 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	441 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	442 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	443 }
1513 13a3520a13f9 * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1510 diff changeset	444 W1 = ((Uint16)p[0] << 8) \|
13a3520a13f9 * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1510 diff changeset	445 (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	446 src += 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	447 srclen -= 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	448 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	449 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	450 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	451 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	452 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	453 /* 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	454 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	455 */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	456 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	457 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	458 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	459 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	460 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	461 }
1510 720f8bb49d7d Win32 fixes Sam Lantinga <slouken@libsdl.org> parents: 1503 diff changeset	462 p = (Uint8 *)src;
1513 13a3520a13f9 * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1510 diff changeset	463 W2 = ((Uint16)p[0] << 8) \|
13a3520a13f9 * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1510 diff changeset	464 (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	465 src += 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	466 srclen -= 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	467 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	468 /* 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	469 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	470 */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	471 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	472 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	473 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	474 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	475 (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	476 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	477 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	478 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	479 {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	480 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	481 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	482 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	483 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	484 }
1513 13a3520a13f9 * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1510 diff changeset	485 W1 = ((Uint16)p[1] << 8) \|
13a3520a13f9 * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1510 diff changeset	486 (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	487 src += 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	488 srclen -= 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	489 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	490 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	491 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	492 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	493 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	494 /* 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	495 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	496 */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	497 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	498 break;
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 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	501 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	502 }
1510 720f8bb49d7d Win32 fixes Sam Lantinga <slouken@libsdl.org> parents: 1503 diff changeset	503 p = (Uint8 *)src;
1513 13a3520a13f9 * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1510 diff changeset	504 W2 = ((Uint16)p[1] << 8) \|
13a3520a13f9 * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1510 diff changeset	505 (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	506 src += 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	507 srclen -= 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	508 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	509 /* 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	510 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	511 */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	512 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	513 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	514 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	515 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	516 (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	517 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	518 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	519 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	520 {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	521 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	522 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	523 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	524 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	525 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	526 ((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	527 ((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	528 (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	529 src += 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	530 srclen -= 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	531 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	532 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	533 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	534 {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	535 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	536 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	537 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	538 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	539 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	540 ((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	541 ((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	542 (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	543 src += 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	544 srclen -= 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	545 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	546 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	547 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	548 {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	549 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	550 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	551 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	552 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	553 ch = *p;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	554 src += 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	555 srclen -= 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	556 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	557 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	558 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	559 {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	560 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	561 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	562 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	563 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	564 ch = *p;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	565 src += 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	566 srclen -= 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	567 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	568 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	569 }
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 /* 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	572 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	573 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	574 {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	575 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	576 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	577 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	578 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	579 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	580 *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	581 } else {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	582 *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	583 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	584 ++dst;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	585 --dstlen;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	586 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	587 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	588 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	589 {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	590 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	591 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	592 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	593 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	594 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	595 *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	596 } else {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	597 *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	598 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	599 ++dst;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	600 --dstlen;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	601 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	602 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	603 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	604 {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	605 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	606 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	607 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	608 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	609 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	610 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	611 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	612 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	613 *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	614 ++dst;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	615 --dstlen;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	616 } 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	617 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	618 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	619 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	620 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	621 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	622 dst += 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	623 dstlen -= 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	624 } 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	625 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	626 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	627 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	628 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	629 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	630 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	631 dst += 3;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	632 dstlen -= 3;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	633 } 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	634 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	635 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	636 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	637 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	638 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	639 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	640 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	641 dst += 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	642 dstlen -= 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	643 } 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	644 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	645 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	646 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	647 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	648 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	649 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	650 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	651 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	652 dst += 5;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	653 dstlen -= 5;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	654 } else {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	655 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	656 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	657 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	658 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	659 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	660 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	661 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	662 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	663 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	664 dst += 6;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	665 dstlen -= 6;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	666 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	667 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	668 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	669 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	670 {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	671 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	672 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	673 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	674 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	675 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	676 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	677 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	678 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	679 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	680 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	681 dst += 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	682 dstlen -= 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	683 } else {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	684 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	685 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	686 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	687 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	688 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	689 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	690 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	691 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	692 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	693 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	694 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	695 dst += 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	696 dstlen -= 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	697 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	698 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	699 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	700 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	701 {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	702 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	703 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	704 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	705 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	706 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	707 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	708 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	709 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	710 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	711 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	712 dst += 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	713 dstlen -= 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	714 } else {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	715 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	716 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	717 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	718 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	719 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	720 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	721 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	722 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	723 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	724 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	725 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	726 dst += 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	727 dstlen -= 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	728 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	729 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	730 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	731 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	732 {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	733 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	734 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	735 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	736 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	737 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	738 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	739 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	740 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	741 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	742 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	743 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	744 dst += 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	745 dstlen -= 4;
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 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	748 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	749 {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	750 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	751 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	752 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	753 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	754 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	755 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	756 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	757 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	758 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	759 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	760 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	761 dst += 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	762 dstlen -= 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	763 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	764 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	765 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	766 {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	767 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	768 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	769 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	770 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	771 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	772 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	773 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	774 *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	775 dst += 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	776 dstlen -= 2;
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 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	779 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	780 {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	781 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	782 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	783 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	784 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	785 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	786 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	787 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	788 *p = ch;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	789 dst += 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	790 dstlen -= 4;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	791 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	792 break;
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
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	795 /* Update state */
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	796 *inbuf = src;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	797 *inbytesleft = srclen;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	798 *outbuf = dst;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	799 *outbytesleft = dstlen;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	800 ++total;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	801 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	802 return total;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	803 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	804
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	805 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	806 {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	807 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	808 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	809 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	810 return 0;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	811 }
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 #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	814
3918 f16c15f3bc2b Minor const correctness patch to SDL_iconv. Ryan C. Gordon <icculus@icculus.org> parents: 1849 diff changeset	815 char SDL_iconv_string(const char tocode, const char fromcode, const char inbuf, size_t inbytesleft)
1501 73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	816 {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	817 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	818 char *string;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	819 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	820 char *outbuf;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	821 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	822 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	823
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	824 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	825 if ( cd == (SDL_iconv_t)-1 ) {
4054 64bf737873a2 Fixed iconv handling on Solaris 11 Sam Lantinga <slouken@libsdl.org> parents: 4053 diff changeset	826 /* See if we can recover here (fixes iconv on Solaris 11) */
64bf737873a2 Fixed iconv handling on Solaris 11 Sam Lantinga <slouken@libsdl.org> parents: 4053 diff changeset	827 if ( !tocode \|\| !*tocode ) {
64bf737873a2 Fixed iconv handling on Solaris 11 Sam Lantinga <slouken@libsdl.org> parents: 4053 diff changeset	828 tocode = "UTF-8";
64bf737873a2 Fixed iconv handling on Solaris 11 Sam Lantinga <slouken@libsdl.org> parents: 4053 diff changeset	829 }
64bf737873a2 Fixed iconv handling on Solaris 11 Sam Lantinga <slouken@libsdl.org> parents: 4053 diff changeset	830 if ( !fromcode \|\| !*fromcode ) {
4243 22aec2e85b86 Fixed bug #797 Sam Lantinga <slouken@libsdl.org> parents: 4159 diff changeset	831 fromcode = "UTF-8";
4054 64bf737873a2 Fixed iconv handling on Solaris 11 Sam Lantinga <slouken@libsdl.org> parents: 4053 diff changeset	832 }
64bf737873a2 Fixed iconv handling on Solaris 11 Sam Lantinga <slouken@libsdl.org> parents: 4053 diff changeset	833 cd = SDL_iconv_open(tocode, fromcode);
64bf737873a2 Fixed iconv handling on Solaris 11 Sam Lantinga <slouken@libsdl.org> parents: 4053 diff changeset	834 }
64bf737873a2 Fixed iconv handling on Solaris 11 Sam Lantinga <slouken@libsdl.org> parents: 4053 diff changeset	835 if ( cd == (SDL_iconv_t)-1 ) {
1501 73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	836 return NULL;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	837 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	838
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	839 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	840 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	841 if ( !string ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	842 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	843 return NULL;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	844 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	845 outbuf = string;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	846 outbytesleft = stringsize;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	847 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	848
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	849 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	850 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	851 switch (retCode) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	852 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	853 {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	854 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	855 stringsize *= 2;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	856 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	857 if ( !string ) {
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	858 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	859 return NULL;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	860 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	861 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	862 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	863 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	864 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	865 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	866 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	867 /* 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	868 ++inbuf;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	869 --inbytesleft;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	870 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	871 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	872 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	873 /* 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	874 inbytesleft = 0;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	875 break;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	876 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	877 }
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	878 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	879
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	880 return string;
73dc5d39bbf8 Added UTF-8 <-> UTF-16 <-> UTF-32 <-> UCS-2 <-> UCS-4 conversion capability Sam Lantinga <slouken@libsdl.org> parents: diff changeset	881 }

Mercurial > sdl-ios-xcode

annotate src/stdlib/SDL_iconv.c @ 5084:4c3c2599559b SDL-1.2