Improve display flush cost

mzyy94 · Jan 28, 2024 · eae2486 · eae2486
1 parent deb91be
commit eae2486
Showing 1 changed file with 7 additions and 19 deletions.
diff --git a/src/lv_port_disp.cpp b/src/lv_port_disp.cpp
@@ -49,25 +49,12 @@ void lv_port_disp_init(void)
     lv_display_t * disp = lv_display_create(MY_DISP_HOR_RES, MY_DISP_VER_RES);
     lv_display_set_flush_cb(disp, disp_flush);
 
-    /* Example 1
-     * One buffer for partial rendering*/
-    static lv_color_t buf_1_1[MY_DISP_HOR_RES * 10];                          /*A buffer for 10 rows*/
-    lv_display_set_buffers(disp, buf_1_1, NULL, sizeof(buf_1_1), LV_DISPLAY_RENDER_MODE_PARTIAL);
-
-    // /* Example 2
-    //  * Two buffers for partial rendering
-    //  * In flush_cb DMA or similar hardware should be used to update the display in the background.*/
-    // static lv_color_t buf_2_1[MY_DISP_HOR_RES * 10];
-    // static lv_color_t buf_2_2[MY_DISP_HOR_RES * 10];
-    // lv_display_set_buffers(disp, buf_2_1, buf_2_2, sizeof(buf_2_1), LV_DISPLAY_RENDER_MODE_PARTIAL);
-
-    // /* Example 3
-    //  * Two buffers screen sized buffer for double buffering.
-    //  * Both LV_DISPLAY_RENDER_MODE_DIRECT and LV_DISPLAY_RENDER_MODE_FULL works, see their comments*/
-    // static lv_color_t buf_3_1[MY_DISP_HOR_RES * MY_DISP_VER_RES];
-    // static lv_color_t buf_3_2[MY_DISP_HOR_RES * MY_DISP_VER_RES];
-    // lv_display_set_buffers(disp, buf_3_1, buf_3_2, sizeof(buf_3_1), LV_DISPLAY_RENDER_MODE_DIRECT);
-
+    /**
+     * Two buffers for partial rendering
+     * In flush_cb DMA or similar hardware should be used to update the display in the background.*/
+    static lv_color_t buf_2_1[MY_DISP_HOR_RES * 10];
+    static lv_color_t buf_2_2[MY_DISP_HOR_RES * 10];
+    lv_display_set_buffers(disp, buf_2_1, buf_2_2, sizeof(buf_2_1), LV_DISPLAY_RENDER_MODE_PARTIAL);
 }
 
 /**********************
@@ -110,5 +97,6 @@ static void disp_flush(lv_display_t * disp_drv, const lv_area_t * area, uint8_t
 
     /*IMPORTANT!!!
      *Inform the graphics library that you are ready with the flushing*/
+    M5.Display.waitDisplay();
     lv_display_flush_ready(disp_drv);
 }