add enable directx option, android software encoding half resolution option (#8435)

* add option enable directx capture screen, default true

Signed-off-by: 21pages <sunboeasy@gmail.com>

* option android software encoding half scale, check isStart flag

Signed-off-by: 21pages <sunboeasy@gmail.com>

---------

Signed-off-by: 21pages <sunboeasy@gmail.com>

flutter/lib/consts.dart

@@ -134,6 +134,7 @@ const String kOptionEnableCheckUpdate = "enable-check-update";
 const String kOptionAllowLinuxHeadless = "allow-linux-headless";
 const String kOptionAllowRemoveWallpaper = "allow-remove-wallpaper";
 const String kOptionStopService = "stop-service";
+const String kOptionDirectxCapture = "enable-directx-capture";
 
 const String kOptionToggleViewOnly = "view-only";
 

flutter/lib/desktop/pages/desktop_setting_page.dart

@@ -315,11 +315,11 @@ class _GeneralState extends State<_General> {
           children: [
             service(),
             theme(),
+            _Card(title: 'Language', children: [language()]),
             hwcodec(),
             audio(context),
             record(context),
             WaylandCard(),
-            _Card(title: 'Language', children: [language()]),
             other()
           ],
         ).marginOnly(bottom: _kListViewBottomMargin));
@@ -413,6 +413,12 @@ class _GeneralState extends State<_General> {
             'Check for software update on startup',
             kOptionEnableCheckUpdate,
             isServer: false,
+          ),
+        if (isWindows && !bind.isOutgoingOnly())
+          _OptionCheckBox(
+            context,
+            'Capture screen using DirectX',
+            kOptionDirectxCapture,
           )
       ],
     ];