bdk: lvgl: do not do unneeded invalidations

A bug was fixed that was causing full parent object invalidations when tapping into a window.

Now if the object is already on top the invalidation is skipped and the whole rerender/draw is skipped, saving valuable cpu time.

bdk/libs/lv_conf.h

@@ -147,10 +147,10 @@
 #define LV_COMPILER_VLA_SUPPORTED            1  /* 1: Variable length array is supported*/
 
 /*HAL settings*/
-#define LV_TICK_CUSTOM               1                       /*1: use a custom tick source (removing the need to manually update the tick with `lv_tick_inc`) */
+#define LV_TICK_CUSTOM               1                      /*1: use a custom tick source (removing the need to manually update the tick with `lv_tick_inc`) */
 #if LV_TICK_CUSTOM == 1
-#define LV_TICK_CUSTOM_INCLUDE       <utils/util.h>          /*Header for the sys time function*/
+#define LV_TICK_CUSTOM_INCLUDE       <soc/timer.h>          /*Header for the sys time function*/
-#define LV_TICK_CUSTOM_SYS_TIME_EXPR (get_tmr_ms())          /*Expression evaluating to current systime in ms*/
+#define LV_TICK_CUSTOM_SYS_TIME_EXPR ((u32)get_tmr_ms())         /*Expression evaluating to current systime in ms*/
 #endif     /*LV_TICK_CUSTOM*/
 
 
@@ -296,6 +296,9 @@
 
 /*Message box (dependencies: lv_rect, lv_btnm, lv_label)*/
 #define USE_LV_MBOX     1
+#if USE_LV_MBOX != 0
+#  define LV_MBOX_CLOSE_ANIM_TIME 200     /*ms*/
+#endif
 
 /*Text area (dependencies: lv_label, lv_page)*/
 #define USE_LV_TA       1

bdk/libs/lvgl/lv_core/lv_group.c

@@ -546,8 +546,8 @@ static void obj_to_foreground(lv_obj_t * obj)
         /*Move the last_top object to the foreground*/
         lv_obj_t * par = lv_obj_get_parent(last_top);
         /*After list change it will be the new head*/
-        lv_ll_chg_list(&par->child_ll, &par->child_ll, last_top);
+        if (lv_ll_chg_list(&par->child_ll, &par->child_ll, last_top))
-        lv_obj_invalidate(last_top);
+            lv_obj_invalidate(last_top); /*Only invalidate if not top*/
     }
 }
 

bdk/libs/lvgl/lv_core/lv_indev.c

@@ -646,8 +646,8 @@ static void indev_proc_press(lv_indev_proc_t * proc)
                 /*Move the last_top object to the foreground*/
                 lv_obj_t * par = lv_obj_get_parent(last_top);
                 /*After list change it will be the new head*/
-                lv_ll_chg_list(&par->child_ll, &par->child_ll, last_top);
+                if (lv_ll_chg_list(&par->child_ll, &par->child_ll, last_top))
-                lv_obj_invalidate(last_top);
+                    lv_obj_invalidate(last_top); /*Only invalidate if not top*/
             }
 
             /*Send a signal about the press*/

bdk/libs/lvgl/lv_misc/lv_ll.c

@@ -215,9 +215,12 @@ void lv_ll_clear(lv_ll_t * ll_p)
  * @param ll_ori_p pointer to the original (old) linked list
  * @param ll_new_p pointer to the new linked list
  * @param node pointer to a node
+ * @return head changed
  */
-void lv_ll_chg_list(lv_ll_t * ll_ori_p, lv_ll_t * ll_new_p, void * node)
+bool lv_ll_chg_list(lv_ll_t * ll_ori_p, lv_ll_t * ll_new_p, void * node)
 {
+    bool changed = ll_new_p->head != node;
+
     lv_ll_rem(ll_ori_p, node);
 
     /*Set node as head*/
@@ -232,6 +235,8 @@ void lv_ll_chg_list(lv_ll_t * ll_ori_p, lv_ll_t * ll_new_p, void * node)
     if(ll_new_p->tail == NULL) {     /*If there is no tail (first node) set the tail too*/
         ll_new_p->tail = node;
     }
+
+    return changed;
 }
 
 /**

bdk/libs/lvgl/lv_misc/lv_ll.h

@@ -89,8 +89,9 @@ void lv_ll_clear(lv_ll_t * ll_p);
  * @param ll_ori_p pointer to the original (old) linked list
  * @param ll_new_p pointer to the new linked list
  * @param node pointer to a node
+ * @return head changed
  */
-void lv_ll_chg_list(lv_ll_t * ll_ori_p, lv_ll_t * ll_new_p, void * node);
+bool lv_ll_chg_list(lv_ll_t * ll_ori_p, lv_ll_t * ll_new_p, void * node);
 
 /**
  * Return with head node of the linked list