Repaint screen less often

src/graphics.rs

@@ -5,14 +5,19 @@ use std::{
         mpsc,
     },
     thread,
+    time::Instant,
 };
 
 use anyhow::{Result, bail};
+use egui::ViewportId;
 use itertools::Itertools as _;
 use wgpu::{
     Device, Extent3d, Origin3d, Queue, TexelCopyBufferLayout, TexelCopyTextureInfo, Texture,
     TextureDescriptor, TextureFormat, TextureUsages, TextureView, TextureViewDescriptor,
 };
+use winit::event_loop::EventLoopProxy;
+
+use crate::app::UserEvent;
 
 #[derive(Debug)]
 pub struct TextureSink {
@@ -21,7 +26,11 @@ pub struct TextureSink {
 }
 
 impl TextureSink {
-    pub fn new(device: &Device, queue: Queue) -> (Self, TextureView) {
+    pub fn new(
+        device: &Device,
+        queue: Queue,
+        proxy: EventLoopProxy<UserEvent>,
+    ) -> (Self, TextureView) {
         let texture = Self::create_texture(device);
         let view = texture.create_view(&TextureViewDescriptor::default());
         let buffers = Arc::new(BufferPool::new());
@@ -37,6 +46,12 @@ impl TextureSink {
                     local_buf.copy_from_slice(bytes.as_slice());
                 }
                 Self::write_texture(&queue, &texture, local_buf.as_slice());
+                if proxy
+                    .send_event(UserEvent::RequestRedraw(ViewportId::ROOT, Instant::now()))
+                    .is_err()
+                {
+                    break;
+                }
             }
         });
         let sink = Self { buffers, sink };