linux x11 rgb565 capture (#8580)

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

libs/scrap/src/x11/display.rs

@@ -2,6 +2,7 @@ use std::rc::Rc;
 
 use super::ffi::*;
 use super::Server;
+use crate::Pixfmt;
 
 #[derive(Debug)]
 pub struct Display {
@@ -10,6 +11,7 @@ pub struct Display {
     rect: Rect,
     root: xcb_window_t,
     name: String,
+    pixfmt: Pixfmt,
 }
 
 #[derive(Copy, Clone, Debug, Hash, Eq, PartialEq)]
@@ -27,6 +29,7 @@ impl Display {
         rect: Rect,
         root: xcb_window_t,
         name: String,
+        pixfmt: Pixfmt,
     ) -> Display {
         Display {
             server,
@@ -34,6 +37,7 @@ impl Display {
             rect,
             root,
             name,
+            pixfmt,
         }
     }
 
@@ -59,4 +63,8 @@ impl Display {
     pub fn name(&self) -> String {
         self.name.clone()
     }
+
+    pub fn pixfmt(&self) -> Pixfmt {
+        self.pixfmt
+    }
 }