Add VkInstance

src/display/app.rs

@@ -0,0 +1,51 @@
+use winit::{
+    application::ApplicationHandler, event::WindowEvent, event_loop::ActiveEventLoop, raw_window_handle::{HasDisplayHandle, DisplayHandle, HandleError}, window::{Window, WindowId}
+};
+use crate::vulkan::VkInstance;
+
+#[derive(Default)]
+pub struct App {
+    window: Option<Window>,
+    instance: Option<VkInstance>,
+}
+
+impl HasDisplayHandle for App {   
+    fn display_handle(&self) -> Result<DisplayHandle<'_>, HandleError> {
+        self.window.as_ref()
+            .ok_or_else(|| HandleError::Unavailable)?
+            .display_handle()
+    }
+}
+
+impl ApplicationHandler for App {
+    fn resumed(&mut self, event_loop: &ActiveEventLoop) {
+        let window_attributes = Window::default_attributes()
+            .with_title("Rust ASH Test")
+            .with_visible(true)
+            .with_inner_size(winit::dpi::LogicalSize::new(
+                f64::from(800),
+                f64::from(600),
+            ));
+
+        self.window = event_loop
+            .create_window(window_attributes)
+            .ok();
+
+        self.instance = self.window
+            .as_ref()
+            .and_then(|w| Some(VkInstance::new(w)));
+    }
+
+    fn window_event(&mut self, event_loop: &ActiveEventLoop, id: WindowId, event: WindowEvent) {
+        match event {
+            WindowEvent::CloseRequested => {
+                println!("The close button was pressed; stopping");
+                event_loop.exit();
+            }
+            WindowEvent::RedrawRequested => {
+                self.window.as_ref().unwrap().request_redraw();
+            }
+            _ => (),
+        }
+    }
+}