Use one texture with two channels for video

src/app.rs

@@ -2,7 +2,7 @@ use imgui::*;
 use imgui_wgpu::{Renderer, RendererConfig};
 use imgui_winit_support::WinitPlatform;
 use pollster::block_on;
-use std::{num::NonZero, sync::Arc, time::Instant};
+use std::{sync::Arc, time::Instant};
 #[cfg(target_os = "windows")]
 use winit::platform::windows::{CornerPreference, WindowAttributesExtWindows as _};
 use winit::{
@@ -69,27 +69,15 @@ impl AppWindow {
         }))
         .unwrap();
 
-        let (device, queue) = block_on(adapter.request_device(
-            &wgpu::DeviceDescriptor {
-                required_features: wgpu::Features::TEXTURE_BINDING_ARRAY,
-                ..wgpu::DeviceDescriptor::default()
-            },
-            None,
-        ))
-        .unwrap();
+        let (device, queue) =
+            block_on(adapter.request_device(&wgpu::DeviceDescriptor::default(), None)).unwrap();
         let queue = Arc::new(queue);
-        let eyes = [
-            Arc::new(GameRenderer::create_texture(&device, "left eye")),
-            Arc::new(GameRenderer::create_texture(&device, "right eye")),
-        ];
+        let eyes = Arc::new(GameRenderer::create_texture(&device, "eye"));
         client.send_command(EmulatorCommand::SetRenderer(GameRenderer {
             queue: queue.clone(),
             eyes: eyes.clone(),
         }));
-        let eyes = [
-            eyes[0].create_view(&wgpu::TextureViewDescriptor::default()),
-            eyes[1].create_view(&wgpu::TextureViewDescriptor::default()),
-        ];
+        let eyes = eyes.create_view(&wgpu::TextureViewDescriptor::default());
         let sampler = device.create_sampler(&wgpu::SamplerDescriptor::default());
         let texture_bind_group_layout =
             device.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor {
@@ -103,7 +91,7 @@ impl AppWindow {
                             view_dimension: wgpu::TextureViewDimension::D2,
                             multisampled: false,
                         },
-                        count: NonZero::new(2),
+                        count: None,
                     },
                     wgpu::BindGroupLayoutEntry {
                         binding: 1,
@@ -119,7 +107,7 @@ impl AppWindow {
             entries: &[
                 wgpu::BindGroupEntry {
                     binding: 0,
-                    resource: wgpu::BindingResource::TextureViewArray(&[&eyes[0], &eyes[1]]),
+                    resource: wgpu::BindingResource::TextureView(&eyes),
                 },
                 wgpu::BindGroupEntry {
                     binding: 1,