linux x11 rgb565 capture (#8580)

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

libs/scrap/src/common/x11.rs

@@ -23,9 +23,10 @@ impl TraitCapturer for Capturer {
     fn frame<'a>(&'a mut self, _timeout: Duration) -> io::Result<Frame<'a>> {
         let width = self.width();
         let height = self.height();
+        let pixfmt = self.0.display().pixfmt();
         Ok(Frame::PixelBuffer(PixelBuffer::new(
             self.0.frame()?,
-            Pixfmt::BGRA,
+            pixfmt,
             width,
             height,
         )))