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mpv/osdep/io.h
wm4 a1244111a7 windows support: unicode filenames
Windows uses a legacy codepage for char* / runtime functions accepting
char *. Using UTF-8 as the codepage with setlocale() is explicitly
forbidden.

Work this around by overriding the MSVCRT functions with wrapper
macros, that assume UTF-8 and use "proper" API calls like _wopen etc.
to deal with unicode filenames. All code that uses standard functions
that take or return filenames must now include osdep/io.h. stat()
can't be overridden, because MinGW-w64 itself defines "stat" as a
macro. Change code to use use mp_stat() instead.

This is not perfectly clean, but still somewhat sane, and much better
than littering the rest of the mplayer code with MinGW specific hacks.
It's also a bit fragile, but that's actually little different from the
previous situation. Also, MinGW is unlikely to ever include a nice way
of dealing with this.
2012-03-09 20:48:54 +02:00

77 lines
2.4 KiB
C

/*
* unicode/utf-8 I/O helpers and wrappers for Windows
*
* This file is part of mplayer2.
*
* mplayer2 is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* mplayer2 is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with mplayer2. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef MPLAYER_OSDEP_IO
#define MPLAYER_OSDEP_IO
#include <limits.h>
#ifdef _WIN32
#include <wchar.h>
wchar_t *mp_from_utf8(void *talloc_ctx, const char *s);
char *mp_to_utf8(void *talloc_ctx, const wchar_t *s);
#endif
#ifdef __MINGW32__
#include <stdio.h>
#include <dirent.h>
#include <sys/stat.h>
#include <fcntl.h>
// Windows' MAX_PATH/PATH_MAX/FILENAME_MAX is fixed to 260, but this limit
// applies to unicode paths encoded with wchar_t (2 bytes on Windows). The UTF-8
// version could end up bigger in memory. In the worst case each wchar_t is
// encoded to 3 bytes in UTF-8, so in the worst case we have:
// wcslen(wpath) <= strlen(utf8path) * 3
// Thus we need MP_PATH_MAX as the UTF-8/char version of PATH_MAX.
#define MP_PATH_MAX (FILENAME_MAX * 3)
void mp_get_converted_argv(int *argc, char ***argv);
int mp_stat(const char *path, struct stat *buf);
int mp_open(const char *filename, int oflag, ...);
int mp_creat(const char *filename, int mode);
FILE *mp_fopen(const char *filename, const char *mode);
DIR *mp_opendir(const char *path);
struct dirent *mp_readdir(DIR *dir);
int mp_closedir(DIR *dir);
int mp_mkdir(const char *path, int mode);
// NOTE: Stat is not overridden with mp_stat, because MinGW-w64 defines it as
// macro.
#define open(...) mp_open(__VA_ARGS__)
#define creat(...) mp_creat(__VA_ARGS__)
#define fopen(...) mp_fopen(__VA_ARGS__)
#define opendir(...) mp_opendir(__VA_ARGS__)
#define readdir(...) mp_readdir(__VA_ARGS__)
#define closedir(...) mp_closedir(__VA_ARGS__)
#define mkdir(...) mp_mkdir(__VA_ARGS__)
#else /* __MINGW32__ */
#define MP_PATH_MAX PATH_MAX
#define mp_stat(...) stat(__VA_ARGS__)
#endif /* __MINGW32__ */
#endif