filesystem: SDL_SYS_EnumerateDirectory inexplicably takes the same arg twice.

src/filesystem/SDL_filesystem.c

@@ -121,7 +121,7 @@ bool SDL_EnumerateDirectory(const char *path, SDL_EnumerateDirectoryCallback cal
     } else if (!callback) {
         return SDL_InvalidParamError("callback");
     }
-    return SDL_SYS_EnumerateDirectory(path, path, callback, userdata);
+    return SDL_SYS_EnumerateDirectory(path, callback, userdata);
 }
 
 bool SDL_GetPathInfo(const char *path, SDL_PathInfo *info)

src/filesystem/SDL_sysfilesystem.h

@@ -28,7 +28,7 @@ extern char *SDL_SYS_GetPrefPath(const char *org, const char *app);
 extern char *SDL_SYS_GetUserFolder(SDL_Folder folder);
 extern char *SDL_SYS_GetCurrentDirectory(void);
 
-extern bool SDL_SYS_EnumerateDirectory(const char *path, const char *dirname, SDL_EnumerateDirectoryCallback cb, void *userdata);
+extern bool SDL_SYS_EnumerateDirectory(const char *path, SDL_EnumerateDirectoryCallback cb, void *userdata);
 extern bool SDL_SYS_RemovePath(const char *path);
 extern bool SDL_SYS_RenamePath(const char *oldpath, const char *newpath);
 extern bool SDL_SYS_CopyFile(const char *oldpath, const char *newpath);

src/filesystem/dummy/SDL_sysfsops.c

@@ -28,7 +28,7 @@
 
 #include "../SDL_sysfilesystem.h"
 
-bool SDL_SYS_EnumerateDirectory(const char *path, const char *dirname, SDL_EnumerateDirectoryCallback cb, void *userdata)
+bool SDL_SYS_EnumerateDirectory(const char *path, SDL_EnumerateDirectoryCallback cb, void *userdata)
 {
     return SDL_Unsupported();
 }

src/filesystem/posix/SDL_sysfsops.c

@@ -35,7 +35,7 @@
 #include <sys/stat.h>
 #include <unistd.h>
 
-bool SDL_SYS_EnumerateDirectory(const char *path, const char *dirname, SDL_EnumerateDirectoryCallback cb, void *userdata)
+bool SDL_SYS_EnumerateDirectory(const char *path, SDL_EnumerateDirectoryCallback cb, void *userdata)
 {
     SDL_EnumerationResult result = SDL_ENUM_CONTINUE;
 
@@ -51,7 +51,7 @@ bool SDL_SYS_EnumerateDirectory(const char *path, const char *dirname, SDL_Enume
         if ((SDL_strcmp(name, ".") == 0) || (SDL_strcmp(name, "..") == 0)) {
             continue;
         }
-        result = cb(userdata, dirname, name);
+        result = cb(userdata, path, name);
     }
 
     closedir(dir);

src/filesystem/windows/SDL_sysfsops.c

@@ -29,7 +29,7 @@
 #include "../../core/windows/SDL_windows.h"
 #include "../SDL_sysfilesystem.h"
 
-bool SDL_SYS_EnumerateDirectory(const char *path, const char *dirname, SDL_EnumerateDirectoryCallback cb, void *userdata)
+bool SDL_SYS_EnumerateDirectory(const char *path, SDL_EnumerateDirectoryCallback cb, void *userdata)
 {
     SDL_EnumerationResult result = SDL_ENUM_CONTINUE;
     if (*path == '\0') {  // if empty (completely at the root), we need to enumerate drive letters.
@@ -38,7 +38,7 @@ bool SDL_SYS_EnumerateDirectory(const char *path, const char *dirname, SDL_Enume
         for (int i = 'A'; (result == SDL_ENUM_CONTINUE) && (i <= 'Z'); i++) {
             if (drives & (1 << (i - 'A'))) {
                 name[0] = (char) i;
-                result = cb(userdata, dirname, name);
+                result = cb(userdata, path, name);
             }
         }
     } else {
@@ -79,7 +79,7 @@ bool SDL_SYS_EnumerateDirectory(const char *path, const char *dirname, SDL_Enume
             if (!utf8fn) {
                 result = SDL_ENUM_FAILURE;
             } else {
-                result = cb(userdata, dirname, utf8fn);
+                result = cb(userdata, path, utf8fn);
                 SDL_free(utf8fn);
             }
         } while ((result == SDL_ENUM_CONTINUE) && (FindNextFileW(dir, &entw) != 0));