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.

1 files changed, 16 insertions, 2 deletions

diff --git a/path.c b/path.c
index b99d694df5..b6b87d4e9b 100644
--- a/path.c
+++ b/path.c
@@ -27,14 +27,15 @@
 #include <stdlib.h>
 #include <string.h>
 #include <stdbool.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
 #include "config.h"
 #include "mp_msg.h"
 #include "path.h"
 
 #ifdef CONFIG_MACOSX_BUNDLE
 #include <CoreFoundation/CoreFoundation.h>
-#include <sys/types.h>
-#include <sys/stat.h>
 #include <unistd.h>
 #elif defined(__MINGW32__)
 #include <windows.h>
@@ -46,6 +47,7 @@
 #include "talloc.h"
 
 #include "osdep/osdep.h"
+#include "osdep/io.h"
 
 char *get_path(const char *filename){
 	char *homedir;
@@ -232,3 +234,15 @@ char *mp_path_join(void *talloc_ctx, struct bstr p1, struct bstr p2)
     return talloc_asprintf(talloc_ctx, "%.*s%s%.*s", BSTR_P(p1),
                            have_separator ? "" : "/", BSTR_P(p2));
 }
+
+bool mp_path_exists(const char *path)
+{
+    struct stat st;
+    return mp_stat(path, &st) == 0;
+}
+
+bool mp_path_isdir(const char *path)
+{
+    struct stat st;
+    return mp_stat(path, &st) == 0 && S_ISDIR(st.st_mode);
+}