perf(vg_lite): optimize GPU fill rendering performance (#8609)

Signed-off-by: pengyiqiang <pengyiqiang@xiaomi.com>
Co-authored-by: pengyiqiang <pengyiqiang@xiaomi.com>

src/draw/vg_lite/lv_draw_vg_lite_fill.c

@@ -58,6 +58,14 @@ void lv_draw_vg_lite_fill(lv_draw_task_t * t, const lv_draw_fill_dsc_t * dsc, co
 
     vg_lite_matrix_t matrix = u->global_matrix;
 
+    /* Improve GPU rendering efficiency using simpler fill modes */
+    if(dsc->radius == 0 && dsc->opa >= LV_OPA_MAX && dsc->grad.dir == LV_GRAD_DIR_NONE &&
+       lv_matrix_is_identity((lv_matrix_t *)&matrix)) {
+        lv_vg_lite_clear(&u->target_buffer, &clip_area, lv_vg_lite_color(dsc->color, LV_OPA_COVER, false));
+        LV_PROFILER_DRAW_END;
+        return;
+    }
+
     lv_vg_lite_path_t * path = lv_vg_lite_path_get(u, VG_LITE_FP32);
     lv_vg_lite_path_set_quality(path, dsc->radius == 0 ? VG_LITE_LOW : VG_LITE_HIGH);
     lv_vg_lite_path_set_bounding_box_area(path, &clip_area);

src/draw/vg_lite/lv_draw_vg_lite_vector.c

@@ -276,15 +276,7 @@ static void task_draw_cb(void * ctx, const lv_vector_path_t * path, const lv_vec
     /* clear area */
     if(!path) {
         vg_lite_color_t c = lv_color32_to_vg(dsc->fill_dsc.color, OPA_MIX(dsc->fill_dsc.opa, u->task_act->opa));
-        vg_lite_rectangle_t rect;
-        lv_vg_lite_rect(&rect, &scissor_area);
-        LV_PROFILER_DRAW_BEGIN_TAG("vg_lite_clear");
-        LV_VG_LITE_CHECK_ERROR(vg_lite_clear(&u->target_buffer, &rect, c), {
-            lv_vg_lite_buffer_dump_info(&u->target_buffer);
-            LV_LOG_ERROR("rect: X%d Y%d W%d H%d", rect.x, rect.y, rect.width, rect.height);
-            lv_vg_lite_color_dump_info(c);
-        });
-        LV_PROFILER_DRAW_END_TAG("vg_lite_clear");
+        lv_vg_lite_clear(&u->target_buffer, &scissor_area, c);
         LV_PROFILER_DRAW_END;
         return;
     }

src/draw/vg_lite/lv_vg_lite_utils.h

@@ -293,6 +293,19 @@ static inline void lv_vg_lite_blit_rect(vg_lite_buffer_t * target,
     LV_PROFILER_DRAW_END_TAG("vg_lite_blit_rect");
 }
 
+static inline void lv_vg_lite_clear(vg_lite_buffer_t * target, const lv_area_t * area, vg_lite_color_t color)
+{
+    vg_lite_rectangle_t rect;
+    lv_vg_lite_rect(&rect, area);
+    LV_PROFILER_DRAW_BEGIN_TAG("vg_lite_clear");
+    LV_VG_LITE_CHECK_ERROR(vg_lite_clear(target, &rect, color), {
+        lv_vg_lite_buffer_dump_info(target);
+        LV_LOG_ERROR("rect: X%d Y%d W%d H%d", rect.x, rect.y, rect.width, rect.height);
+        lv_vg_lite_color_dump_info(color);
+    });
+    LV_PROFILER_DRAW_END_TAG("vg_lite_clear");
+}
+
 /**********************
  *      MACROS
  **********************/