Memory leak with shadow enabled?

[Suprazz]

LVGL version

9.2.2

Platform

I'm using esp32s3
I set LV_MEM_SIZE to 128*1024U

What happened?

by monitoring memory usage with lv_mem_monitor
my normal free_size usage is around 70k and max_used is around 64k
but if I unhide this widget and display this screen my max_used goes to 122 000 and most of the time will crash.

lv_obj_set_pos(obj, 150, 150);
            lv_obj_set_size(obj, 180, 180);
            lv_arc_set_value(obj, 50);
            lv_arc_set_bg_start_angle(obj, 0);
            lv_arc_set_bg_end_angle(obj, 360);
lv_obj_add_flag(obj, LV_OBJ_FLAG_HIDDEN);            
lv_obj_clear_flag(obj, LV_OBJ_FLAG_CLICKABLE|LV_OBJ_FLAG_CLICK_FOCUSABLE|LV_OBJ_FLAG_PRESS_LOCK|LV_OBJ_FLAG_SCROLL_ELASTIC|LV_OBJ_FLAG_SCROLL_MOMENTUM|LV_OBJ_FLAG_SCROLL_WITH_ARROW|LV_OBJ_FLAG_SNAPPABLE);
            lv_obj_set_style_arc_width(obj, 0, LV_PART_INDICATOR | LV_STATE_DEFAULT);
            lv_obj_set_style_bg_opa(obj, 0, LV_PART_KNOB | LV_STATE_DEFAULT);
            lv_obj_set_style_arc_color(obj, lv_color_hex(0xff05b6ff), LV_PART_MAIN | LV_STATE_DEFAULT);
            lv_obj_set_style_arc_width(obj, 2, LV_PART_MAIN | LV_STATE_DEFAULT);
            lv_obj_set_style_border_color(obj, lv_color_hex(0xff0087ff), LV_PART_MAIN | LV_STATE_DEFAULT);
            lv_obj_set_style_border_width(obj, 0, LV_PART_MAIN | LV_STATE_DEFAULT);
            lv_obj_set_style_border_opa(obj, 255, LV_PART_MAIN | LV_STATE_DEFAULT);
            lv_obj_set_style_border_side(obj, LV_BORDER_SIDE_FULL, LV_PART_MAIN | LV_STATE_DEFAULT);
            lv_obj_set_style_radius(obj, 255, LV_PART_MAIN | LV_STATE_DEFAULT);
            lv_obj_set_style_shadow_opa(obj, 255, LV_PART_MAIN | LV_STATE_DEFAULT);
            lv_obj_set_style_shadow_spread(obj, 10, LV_PART_MAIN | LV_STATE_DEFAULT);
            lv_obj_set_style_shadow_color(obj, lv_color_hex(0xff4181f6), LV_PART_MAIN | LV_STATE_DEFAULT);
            lv_obj_set_style_arc_opa(obj, 255, LV_PART_MAIN | LV_STATE_DEFAULT);
            lv_obj_set_style_shadow_ofs_x(obj, 0, LV_PART_MAIN | LV_STATE_DEFAULT);
            lv_obj_set_style_shadow_width(obj, 80, LV_PART_MAIN | LV_STATE_DEFAULT);

I found that in the function circ_calc_aa4 there is no check for null pointer on circ_x
int32_t * cir_x = lv_malloc_zeroed(cir_xy_size); and this is where my program crashed but

But the real problem is why is the memory max_used jump from 64k to 122k only on this widget.
I had another simillar issue with horizontal sliders using gradians too.
It seems to be related to the drawing of the gradian or shadow used by this widget creating a memory leak?

How to reproduce?

No response

[kisvegabor]

Hi,

I believe the rendering of this large shadow required more memory.