lv_draw_opengles.h

lv_draw_opengles_init

void lv_draw_opengles_init(void)

lv_draw_opengles_deinit

void lv_draw_opengles_deinit(void)

lv_draw_opengles_clear_layer_area

Clear a region of the GPU texture that backs the given layer. Needed because lv_draw_buf_clear operates on the CPU draw buffer, which is only a dummy placeholder when the layer is rendered to a GL texture. Without this, a transparent screen background leaves stale pixels on the texture between frames.

void lv_draw_opengles_clear_layer_area(lv_layer_t *layer, const lv_area_t *area)