qt: Fix HDD path relativization on Windows

src/86box.c

@@ -710,7 +710,11 @@ usage:
 	if (rom_path[0] != '\0')
 		pclog("# ROM path: %s\n", rom_path);
 	else
-		pclog("# ROM path: %sroms\\\n", exe_path);
+#ifndef _WIN32
+	pclog("# ROM path: %sroms/\n", exe_path);
+#else
+	pclog("# ROM path: %sroms\\\n", exe_path);
+#endif
 	pclog("# Configuration file: %s\n#\n\n", cfg_path);
 	/*
 	 * We are about to read the configuration file, which MAY

src/config.c

@@ -1402,6 +1402,7 @@ load_hard_disks(void)
 	} else {
 		plat_append_filename(hdd[c].fn, usr_path, p);
 	}
+	plat_path_normalize(hdd[c].fn);
 
 	/* If disk is empty or invalid, mark it for deletion. */
 	if (! hdd_is_valid(c)) {
@@ -2810,11 +2811,13 @@ save_hard_disks(void)
 	}
 
 	sprintf(temp, "hdd_%02i_fn", c+1);
-	if (hdd_is_valid(c) && (strlen(hdd[c].fn) != 0))
+	if (hdd_is_valid(c) && (strlen(hdd[c].fn) != 0)) {
+		plat_path_normalize(hdd[c].fn);
 		if (!strnicmp(hdd[c].fn, usr_path, strlen(usr_path)))
 			config_set_string(cat, temp, &hdd[c].fn[strlen(usr_path)]);
 		else
 			config_set_string(cat, temp, hdd[c].fn);
+	}
 	else
 		config_delete_var(cat, temp);
     }

src/disk/hdd_image.c

@@ -252,6 +252,10 @@ hdd_image_load(int id)
 	int vhd_error = 0;
 
 	memset(empty_sector, 0, sizeof(empty_sector));
+	if (fn) {
+		plat_path_normalize(fn);
+	}
+
 
 	hdd_images[id].base = 0;
 

src/include/86box/plat.h

@@ -111,6 +111,7 @@ extern char	*plat_get_extension(char *s);
 extern void	plat_append_filename(char *dest, const char *s1, const char *s2);
 extern void	plat_put_backslash(char *s);
 extern void	plat_path_slash(char *path);
+extern void plat_path_normalize(char *path);
 extern int	plat_path_abs(char *path);
 extern int	plat_dir_check(char *path);
 extern int	plat_dir_create(char *path);

src/qt/qt_platform.cpp

@@ -235,15 +235,25 @@ plat_path_abs(char *path)
 #endif
 }
 
+void
+plat_path_normalize(char* path)
+{
+    while (*path++ != 0)
+    {
+        if (*path == '\\') *path = '/';
+    }
+}
+
 void
 plat_path_slash(char *path)
 {
     auto len = strlen(path);
-    auto separator = QDir::separator().toLatin1();
+    auto separator = '/';
     if (path[len-1] != separator) {
         path[len] = separator;
         path[len+1] = 0;
     }
+    plat_path_normalize(path);
 }
 
 void

src/unix/unix.c

@@ -282,12 +282,22 @@ plat_path_abs(char *path)
     return path[0] == '/';
 }
 
+void
+plat_path_normalize(char* path)
+{
+    while (*path++ != 0)
+    {
+        if (*path == '\\') *path = '/';
+    }
+}
+
 void
 plat_path_slash(char *path)
 {
     if ((path[strlen(path)-1] != '/')) {
 	strcat(path, "/");
     }
+    plat_path_normalize(path);
 }
 
 void

src/win/win.c

@@ -731,6 +731,11 @@ plat_remove(char *path)
     }
 }
 
+void
+plat_path_normalize(char* path)
+{
+    /* No-op */
+}
 
 /* Make sure a path ends with a trailing (back)slash. */
 void