Sort results for libretro cores correctly.

frontend/menu/menu_common.c

@@ -257,6 +257,20 @@ void rgui_list_get_alt_at_offset(const rgui_list_t *list, size_t index,
       *alt = list->list[index].alt ? list->list[index].alt : list->list[index].path;
 }
 
+static int rgui_list_alt_cmp(const void *a_, const void *b_)
+{
+   const struct rgui_file *a = (const struct rgui_file*)a_;
+   const struct rgui_file *b = (const struct rgui_file*)b_;
+   const char *cmp_a = a->alt ? a->alt : a->path;
+   const char *cmp_b = b->alt ? b->alt : b->path;
+   return strcasecmp(cmp_a, cmp_b);
+}
+
+void rgui_list_sort_on_alt(rgui_list_t *list)
+{
+   qsort(list->list, list->size, sizeof(list->list[0]), rgui_list_alt_cmp);
+}
+
 void rgui_list_get_at_offset(const rgui_list_t *list, size_t index,
       const char **path, unsigned *file_type)
 {
@@ -956,6 +970,8 @@ void menu_resolve_libretro_names(rgui_list_t *list, const char *dir)
                core_path, display_name, sizeof(display_name)))
          rgui_list_set_alt_at_offset(list, i, display_name);
    }
+
+   rgui_list_sort_on_alt(rgui->selection_buf);
 }
 
 void menu_resolve_supported_cores(rgui_handle_t *rgui)
@@ -968,6 +984,7 @@ void menu_resolve_supported_cores(rgui_handle_t *rgui)
       rgui_list_push(rgui->selection_buf, info[i].path, RGUI_FILE_PLAIN, 0);
       rgui_list_set_alt_at_offset(rgui->selection_buf, i, info[i].display_name);
    }
+
+   rgui_list_sort_on_alt(rgui->selection_buf);
 }
 
-

frontend/menu/rgui.c

@@ -997,8 +997,7 @@ static inline bool rgui_list_elem_is_dir(rgui_list_t *buf, unsigned offset)
 static inline int rgui_list_get_first_char(rgui_list_t *buf, unsigned offset)
 {
    const char *path = NULL;
-   unsigned type = 0;
-   rgui_list_get_at_offset(buf, offset, &path, &type);
+   rgui_list_get_alt_at_offset(buf, offset, &path);
    int ret = tolower(*path);
   
    // "Normalize" non-alphabetical entries so they are lumped together for purposes of jumping.
@@ -1173,7 +1172,6 @@ static bool rgui_directory_parse(rgui_handle_t *rgui, const char *directory, uns
    }
 
    string_list_free(list);
-   rgui_build_scroll_indices(rgui, (rgui_list_t*)ctx);
    return true;
 }
 
@@ -1531,7 +1529,6 @@ static int rgui_iterate(void *data, unsigned action)
       rgui->need_refresh = false;
       rgui_list_clear(rgui->selection_buf);
 
-      rgui->scroll_indices_size = 0;
       if (menu_type == RGUI_SETTINGS_OPEN_HISTORY)
          history_parse(rgui);
       else if (menu_type != RGUI_SETTINGS_DEFERRED_CORE)
@@ -1542,6 +1539,10 @@ static int rgui_iterate(void *data, unsigned action)
       else if (menu_type == RGUI_SETTINGS_DEFERRED_CORE)
          menu_resolve_supported_cores(rgui);
 
+      rgui->scroll_indices_size = 0;
+      if (menu_type != RGUI_SETTINGS_OPEN_HISTORY)
+         rgui_build_scroll_indices(rgui, rgui->selection_buf);
+
       // Before a refresh, we could have deleted a file on disk, causing
       // selection_ptr to suddendly be out of range. Ensure it doesn't overflow.
       if (rgui->selection_ptr >= rgui->selection_buf->size && rgui->selection_buf->size)

frontend/menu/utils/file_list.h

@@ -48,6 +48,8 @@ void rgui_list_set_alt_at_offset(rgui_list_t *list, size_t index,
 void rgui_list_get_alt_at_offset(const rgui_list_t *list, size_t index,
       const char **alt);
 
+void rgui_list_sort_on_alt(rgui_list_t *list);
+
 #ifdef __cplusplus
 }
 #endif