[qemu][lvgl] 优化lvgl显示驱动

bsp/qemu-vexpress-a9/drivers/lvgl/lv_port_disp.c

@@ -18,72 +18,28 @@ static struct rt_device_graphic_info info;
 
 static lv_disp_drv_t disp_drv;  /*Descriptor of a display driver*/
 
-static void color_to16_maybe(lv_color16_t *dst, lv_color_t *src)
-{
-#if (LV_COLOR_DEPTH == 16)
-    dst->full = src->full;
-#else
-    dst->ch.blue = src->ch.blue;
-    dst->ch.green = src->ch.green;
-    dst->ch.red = src->ch.red;
-#endif
-}
-
 /*Flush the content of the internal buffer the specific area on the display
  *You can use DMA or any hardware acceleration to do this operation in the background but
  *'lv_disp_flush_ready()' has to be called when finished.*/
 static void lcd_fb_flush(lv_disp_drv_t *disp_drv, const lv_area_t *area, lv_color_t *color_p)
 {
-    int x1, x2, y1, y2;
-
-    x1 = area->x1;
-    x2 = area->x2;
-    y1 = area->y1;
-    y2 = area->y2;
-
-    /*Return if the area is out the screen*/
-    if (x2 < 0)
-        return;
-    if (y2 < 0)
-        return;
-    if (x1 > info.width - 1)
-        return;
-    if (y1 > info.height - 1)
-        return;
-
-    /*Truncate the area to the screen*/
-    int32_t act_x1 = x1 < 0 ? 0 : x1;
-    int32_t act_y1 = y1 < 0 ? 0 : y1;
-    int32_t act_x2 = x2 > info.width - 1 ? info.width - 1 : x2;
-    int32_t act_y2 = y2 > info.height - 1 ? info.height - 1 : y2;
-
     uint32_t x;
     uint32_t y;
-    long int location = 0;
+    uint32_t location = 0;
 
     /* 16 bit per pixel */
     lv_color16_t *fbp16 = (lv_color16_t *)info.framebuffer;
 
-    for (y = act_y1; y <= act_y2; y++)
+    for (y = area->y1; y <area->y2 + 1; y++)
     {
-        for (x = act_x1; x <= act_x2; x++)
+        for (x = area->x1; x <area->x2 + 1; x++)
         {
-            location = (x) + (y)*info.width;
+            location = x + y * info.width;
-            color_to16_maybe(&fbp16[location], color_p);
+            fbp16[location].full = color_p->full;
             color_p++;
         }
-
-        color_p += x2 - act_x2;
     }
 
-    struct rt_device_rect_info rect_info;
-
-    rect_info.x = x1;
-    rect_info.y = y1;
-    rect_info.width = x2 - x1 + 1;
-    rect_info.height = y2 - y1 + 1;
-    rt_device_control(lcd_device, RTGRAPHIC_CTRL_RECT_UPDATE, &rect_info);
-
     lv_disp_flush_ready(disp_drv);
 }
 

bsp/simulator/drivers/lvgl/lv_conf.h

@@ -17,6 +17,8 @@
 #define USE_WIN32DRV                1
 #define WIN32DRV_MONITOR_ZOOM       1
 
+#define LV_USE_FS_WIN32             1
+
 /* music player demo */
 #include <rtconfig.h>
 #define LV_DISP_DEF_REFR_PERIOD     10

bsp/simulator/drivers/lvgl/lv_demo.c

@@ -27,7 +27,7 @@ static void lvgl_thread(void *parameter)
     /* initialize win32 driver; don't put this in lv_port_disp() */
     if (!lv_win32_init(GetModuleHandleW(NULL), SW_SHOW, BSP_LCD_WIDTH, BSP_LCD_HEIGHT, NULL))
     {
-        LOG_E("lv_win32_init failure!");
+        LOG_E("lv_win32_init is failure!");
         return;
     }
     lv_win32_add_all_input_devices_to_group(NULL);
@@ -43,7 +43,7 @@ static void lvgl_thread(void *parameter)
         rt_thread_mdelay(1);
     }
 
-    LOG_W("LVGL simulator window closed!");
+    LOG_W("LVGL simulator window is closed!");
 }
 
 static int lvgl_demo_init(void)

bsp/stm32/stm32l475-atk-pandora/board/ports/lcd/drv_lcd.c

@@ -451,7 +451,7 @@ void lcd_fill_array(rt_uint16_t x_start, rt_uint16_t y_start, rt_uint16_t x_end,
 {
     rt_uint32_t size = 0;
 
-    size = (x_end - x_start + 1) * (y_end - y_start + 1) * 2;
+    size = (x_end - x_start + 1) * (y_end - y_start + 1) * 2/*16bit*/;
     lcd_address_set(x_start, y_start, x_end, y_end);
     rt_pin_write(LCD_DC_PIN, PIN_HIGH);
     rt_spi_send(spi_dev_lcd, pcolor, size);