feat: 支持从桌面端收取电脑音量和显示器亮度。

main/desktop.c

@@ -126,9 +126,21 @@ static void udp_server_task(void *pvParameters) {
                 (uint8_t *)&(rx_buffer[3]), len - 3);
             break;
 
-          default:
+          case 3:  // computer brightness changed
+            if (rx_buffer[1] == 1) {
+              display1_brightness.value = rx_buffer[2];
+            } else if (rx_buffer[1] == 2) {
+              display2_brightness.value = rx_buffer[2];
+            }
+            break;
 
-            ESP_LOGI(UDP_SERVER_TAG, "%s", rx_buffer);
+          case 4:  // computer volume changed
+            computer_volume.value = rx_buffer[1];
+            break;
+
+          default:
+            ESP_LOG_BUFFER_HEXDUMP(UDP_SERVER_TAG, rx_buffer, len,
+                                   ESP_LOG_INFO);
             break;
         }
         ESP_LOGD(UDP_SERVER_TAG, "Received %d bytes from %s:", len, addr_str);