update example to use winit 0.30 (#105)
* update example to use winit 0.30 * omit unneeded field in example
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Billy Messenger
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2 changed files with 211 additions and 151 deletions
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@ -15,6 +15,6 @@ lru = { version = "0.12.1", default-features = false }
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rustc-hash = "2.0"
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[dev-dependencies]
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winit = { version = "0.29.10", features = ["rwh_05"] }
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wgpu = { version = "22", default-features = true }
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winit = "0.30.3"
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wgpu = "22"
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pollster = "0.3.0"
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@ -9,158 +9,218 @@ use wgpu::{
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RenderPassDescriptor, RequestAdapterOptions, SurfaceConfiguration, TextureFormat,
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TextureUsages, TextureViewDescriptor,
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};
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use winit::{
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dpi::LogicalSize,
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event::{Event, WindowEvent},
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event_loop::EventLoop,
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window::WindowBuilder,
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};
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use winit::{dpi::LogicalSize, event::WindowEvent, event_loop::EventLoop, window::Window};
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fn main() {
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pollster::block_on(run());
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}
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async fn run() {
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// Set up window
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let (width, height) = (800, 600);
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let event_loop = EventLoop::new().unwrap();
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let window = Arc::new(
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WindowBuilder::new()
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.with_inner_size(LogicalSize::new(width as f64, height as f64))
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.with_title("glyphon hello world")
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.build(&event_loop)
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.unwrap(),
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);
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let size = window.inner_size();
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let scale_factor = window.scale_factor();
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// Set up surface
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let instance = Instance::new(InstanceDescriptor::default());
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let adapter = instance
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.request_adapter(&RequestAdapterOptions::default())
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.await
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.unwrap();
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let (device, queue) = adapter
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.request_device(&DeviceDescriptor::default(), None)
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.await
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.unwrap();
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let surface = instance
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.create_surface(window.clone())
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.expect("Create surface");
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let swapchain_format = TextureFormat::Bgra8UnormSrgb;
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let mut config = SurfaceConfiguration {
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usage: TextureUsages::RENDER_ATTACHMENT,
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format: swapchain_format,
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width: size.width,
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height: size.height,
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present_mode: PresentMode::Fifo,
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alpha_mode: CompositeAlphaMode::Opaque,
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view_formats: vec![],
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desired_maximum_frame_latency: 2,
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};
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surface.configure(&device, &config);
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// Set up text renderer
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let mut font_system = FontSystem::new();
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let mut swash_cache = SwashCache::new();
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let cache = Cache::new(&device);
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let mut viewport = Viewport::new(&device, &cache);
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let mut atlas = TextAtlas::new(&device, &queue, &cache, swapchain_format);
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let mut text_renderer =
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TextRenderer::new(&mut atlas, &device, MultisampleState::default(), None);
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let mut buffer = Buffer::new(&mut font_system, Metrics::new(30.0, 42.0));
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let physical_width = (width as f64 * scale_factor) as f32;
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let physical_height = (height as f64 * scale_factor) as f32;
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buffer.set_size(
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&mut font_system,
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Some(physical_width),
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Some(physical_height),
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);
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buffer.set_text(&mut font_system, "Hello world! 👋\nThis is rendered with 🦅 glyphon 🦁\nThe text below should be partially clipped.\na b c d e f g h i j k l m n o p q r s t u v w x y z", Attrs::new().family(Family::SansSerif), Shaping::Advanced);
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buffer.shape_until_scroll(&mut font_system, false);
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event_loop
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.run(move |event, target| {
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if let Event::WindowEvent {
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window_id: _,
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event,
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} = event
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{
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match event {
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WindowEvent::Resized(size) => {
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config.width = size.width;
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config.height = size.height;
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surface.configure(&device, &config);
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window.request_redraw();
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}
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WindowEvent::RedrawRequested => {
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viewport.update(
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&queue,
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Resolution {
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width: config.width,
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height: config.height,
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},
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);
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text_renderer
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.prepare(
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&device,
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&queue,
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&mut font_system,
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&mut atlas,
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&viewport,
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[TextArea {
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buffer: &buffer,
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left: 10.0,
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top: 10.0,
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scale: 1.0,
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bounds: TextBounds {
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left: 0,
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top: 0,
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right: 600,
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bottom: 160,
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},
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default_color: Color::rgb(255, 255, 255),
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}],
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&mut swash_cache,
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)
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.unwrap();
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let frame = surface.get_current_texture().unwrap();
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let view = frame.texture.create_view(&TextureViewDescriptor::default());
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let mut encoder = device
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.create_command_encoder(&CommandEncoderDescriptor { label: None });
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{
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let mut pass = encoder.begin_render_pass(&RenderPassDescriptor {
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label: None,
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color_attachments: &[Some(RenderPassColorAttachment {
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view: &view,
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resolve_target: None,
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ops: Operations {
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load: LoadOp::Clear(wgpu::Color::BLACK),
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store: wgpu::StoreOp::Store,
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},
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})],
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depth_stencil_attachment: None,
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timestamp_writes: None,
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occlusion_query_set: None,
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});
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text_renderer.render(&atlas, &viewport, &mut pass).unwrap();
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}
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queue.submit(Some(encoder.finish()));
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frame.present();
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atlas.trim();
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}
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WindowEvent::CloseRequested => target.exit(),
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_ => {}
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}
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}
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})
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.run_app(&mut Application { window_state: None })
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.unwrap();
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}
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struct WindowState {
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device: wgpu::Device,
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queue: wgpu::Queue,
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surface: wgpu::Surface<'static>,
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surface_config: SurfaceConfiguration,
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font_system: FontSystem,
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swash_cache: SwashCache,
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viewport: glyphon::Viewport,
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atlas: glyphon::TextAtlas,
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text_renderer: glyphon::TextRenderer,
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text_buffer: glyphon::Buffer,
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// Make sure that the winit window is last in the struct so that
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// it is dropped after the wgpu surface is dropped, otherwise the
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// program may crash when closed. This is probably a bug in wgpu.
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window: Arc<Window>,
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}
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impl WindowState {
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async fn new(window: Arc<Window>) -> Self {
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let physical_size = window.inner_size();
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let scale_factor = window.scale_factor();
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// Set up surface
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let instance = Instance::new(InstanceDescriptor::default());
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let adapter = instance
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.request_adapter(&RequestAdapterOptions::default())
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.await
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.unwrap();
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let (device, queue) = adapter
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.request_device(&DeviceDescriptor::default(), None)
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.await
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.unwrap();
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let surface = instance
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.create_surface(window.clone())
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.expect("Create surface");
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let swapchain_format = TextureFormat::Bgra8UnormSrgb;
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let surface_config = SurfaceConfiguration {
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usage: TextureUsages::RENDER_ATTACHMENT,
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format: swapchain_format,
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width: physical_size.width,
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height: physical_size.height,
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present_mode: PresentMode::Fifo,
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alpha_mode: CompositeAlphaMode::Opaque,
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view_formats: vec![],
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desired_maximum_frame_latency: 2,
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};
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surface.configure(&device, &surface_config);
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// Set up text renderer
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let mut font_system = FontSystem::new();
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let swash_cache = SwashCache::new();
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let cache = Cache::new(&device);
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let viewport = Viewport::new(&device, &cache);
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let mut atlas = TextAtlas::new(&device, &queue, &cache, swapchain_format);
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let text_renderer =
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TextRenderer::new(&mut atlas, &device, MultisampleState::default(), None);
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let mut text_buffer = Buffer::new(&mut font_system, Metrics::new(30.0, 42.0));
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let physical_width = (physical_size.width as f64 * scale_factor) as f32;
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let physical_height = (physical_size.height as f64 * scale_factor) as f32;
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text_buffer.set_size(
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&mut font_system,
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Some(physical_width),
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Some(physical_height),
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);
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text_buffer.set_text(&mut font_system, "Hello world! 👋\nThis is rendered with 🦅 glyphon 🦁\nThe text below should be partially clipped.\na b c d e f g h i j k l m n o p q r s t u v w x y z", Attrs::new().family(Family::SansSerif), Shaping::Advanced);
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text_buffer.shape_until_scroll(&mut font_system, false);
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Self {
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device,
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queue,
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surface,
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surface_config,
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font_system,
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swash_cache,
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viewport,
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atlas,
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text_renderer,
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text_buffer,
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window,
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}
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}
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}
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struct Application {
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window_state: Option<WindowState>,
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}
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impl winit::application::ApplicationHandler for Application {
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fn resumed(&mut self, event_loop: &winit::event_loop::ActiveEventLoop) {
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if self.window_state.is_some() {
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return;
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}
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// Set up window
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let (width, height) = (800, 600);
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let window_attributes = Window::default_attributes()
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.with_inner_size(LogicalSize::new(width as f64, height as f64))
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.with_title("glyphon hello world");
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let window = Arc::new(event_loop.create_window(window_attributes).unwrap());
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self.window_state = Some(pollster::block_on(WindowState::new(window)));
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}
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fn window_event(
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&mut self,
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event_loop: &winit::event_loop::ActiveEventLoop,
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_window_id: winit::window::WindowId,
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event: WindowEvent,
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) {
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let Some(state) = &mut self.window_state else {
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return;
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};
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let WindowState {
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window,
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device,
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queue,
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surface,
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surface_config,
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font_system,
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swash_cache,
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viewport,
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atlas,
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text_renderer,
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text_buffer,
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..
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} = state;
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match event {
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WindowEvent::Resized(size) => {
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surface_config.width = size.width;
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surface_config.height = size.height;
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surface.configure(&device, &surface_config);
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window.request_redraw();
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}
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WindowEvent::RedrawRequested => {
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viewport.update(
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&queue,
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Resolution {
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width: surface_config.width,
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height: surface_config.height,
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},
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);
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text_renderer
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.prepare(
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device,
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queue,
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font_system,
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atlas,
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viewport,
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[TextArea {
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buffer: text_buffer,
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left: 10.0,
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top: 10.0,
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scale: 1.0,
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bounds: TextBounds {
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left: 0,
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top: 0,
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right: 600,
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bottom: 160,
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},
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default_color: Color::rgb(255, 255, 255),
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}],
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swash_cache,
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)
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.unwrap();
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let frame = surface.get_current_texture().unwrap();
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let view = frame.texture.create_view(&TextureViewDescriptor::default());
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let mut encoder =
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device.create_command_encoder(&CommandEncoderDescriptor { label: None });
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{
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let mut pass = encoder.begin_render_pass(&RenderPassDescriptor {
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label: None,
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color_attachments: &[Some(RenderPassColorAttachment {
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view: &view,
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resolve_target: None,
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ops: Operations {
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load: LoadOp::Clear(wgpu::Color::BLACK),
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store: wgpu::StoreOp::Store,
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},
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})],
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depth_stencil_attachment: None,
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timestamp_writes: None,
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occlusion_query_set: None,
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});
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text_renderer.render(&atlas, &viewport, &mut pass).unwrap();
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}
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queue.submit(Some(encoder.finish()));
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frame.present();
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atlas.trim();
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}
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WindowEvent::CloseRequested => event_loop.exit(),
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_ => {}
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}
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}
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}
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