Text & Image Shadow

[shirazelec]

Text & Image Shadow

[kisvegabor]

Could you share the slow version too to see exactly what we are trying to optimize?

[shirazelec]

No version is slow
Only this method is more optimal for creating shadows
Please read the files

[kisvegabor]

I mean please send a code snippet to test the slow version too. (E.g. lv_obj_set_style_text_shadow_slow(...) {...}) I would like to compare them and examine why the recommended version is faster.

[shirazelec]

  //old method
  lv_obj_t *lbl_shdow = lv_label_create(home_obj);
  lv_obj_set_style_text_color(lbl_shdow, lv_color_make(255, 255, 255), LV_PART_MAIN);
  lv_label_set_text(lbl_shdow, "Sample");
  lv_obj_align(lbl_shdow, LV_ALIGN_CENTER, 0, 0);

  lv_obj_t *lbl_main = lv_label_create(home_obj);
  lv_obj_set_style_text_color(lbl_main, lv_color_make(0, 0, 0), LV_PART_MAIN);
  lv_obj_align_to(lbl_main, lbl_shdow, LV_ALIGN_TOP_LEFT, -1, -1);
  lv_label_set_text(lbl_main, lv_label_get_text(lbl_shdow));

  //new method
  lv_obj_t *lbl1 = lv_label_create(home_obj);
  lv_obj_set_style_text_color(lbl1, lv_color_make(0, 0, 0), LV_PART_MAIN);
  lv_obj_set_style_text_shadow(lbl1, lv_color_make(255, 255, 255), 1, 1);
  lv_obj_center(lbl1);
  lv_label_set_text(lbl1, "Sample");

[kisvegabor]

Got it now, thanks you! How much faster was your method? And on what platform have you tested it?

[shirazelec]

I also tested it on ESP32 and F1C100S, it was very effective in the speed of running animations

[lvgl-bot]

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[lvgl-bot]

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