Take screenshot without tearing

ClusterM · Oct 26, 2017 · 0b52942 · 0b52942
1 parent 3afa3b7
commit 0b52942
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Showing 2 changed files with 14 additions and 1 deletion.
diff --git a/WorkerForm.cs b/WorkerForm.cs
@@ -1037,7 +1037,8 @@ public static Image TakeScreenshot()
             var clovershell = MainForm.Clovershell;
             var screenshot = new Bitmap(1280, 720, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
             var rawStream = new MemoryStream();
-            clovershell.Execute("cat /dev/fb0", null, rawStream, null, 1000, true);
+            clovershell.Execute("hakchi uipause;cat /dev/fb0", null, rawStream, null, 1000, true);
+            clovershell.ExecuteSimple("hakchi uiresume");
             var raw = rawStream.ToArray();
             BitmapData data = screenshot.LockBits(
                 new Rectangle(0, 0, screenshot.Width, screenshot.Height),

diff --git a/mods/mod_hakchi/hakchi/rootfs/etc/preinit.d/b0010_functions b/mods/mod_hakchi/hakchi/rootfs/etc/preinit.d/b0010_functions
@@ -217,6 +217,18 @@ uistart(){
   /etc/init.d/S81clover-mcp start
 }
 
+uipause(){
+  lsof -n | grep /dev/fb0 | awk '{ print $1 }' | while read pid; do
+    kill -s SIGSTOP $pid
+  done
+}
+
+uiresume(){
+  lsof -n | grep /dev/fb0 | awk '{ print $1 }' | while read pid; do
+    kill -s SIGCONT $pid
+  done
+}
+
 gameover(){
   poweroff
 }