139 lines
4.3 KiB
Rust
139 lines
4.3 KiB
Rust
use gui::{UIRenderNode, primitive::Primitives};
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use pollster::FutureExt;
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use std::sync::Arc;
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use wgpu::util::StagingBelt;
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use winit::{dpi::PhysicalSize, window::Window};
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pub const CLEAR_COLOR: wgpu::Color = wgpu::Color::BLACK;
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pub struct Renderer {
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window: Arc<Window>,
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surface: wgpu::Surface<'static>,
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device: wgpu::Device,
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queue: wgpu::Queue,
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config: wgpu::SurfaceConfiguration,
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encoder: wgpu::CommandEncoder,
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staging_belt: StagingBelt,
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ui_node: UIRenderNode,
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}
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impl Renderer {
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pub fn update(&mut self, primitives: Option<&Primitives>) {
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self.ui_node.update(&self.device, &self.queue, primitives);
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}
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pub fn draw(&mut self) {
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let output = self.surface.get_current_texture().unwrap();
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let view = output
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.texture
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.create_view(&wgpu::TextureViewDescriptor::default());
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let mut encoder = std::mem::replace(&mut self.encoder, Self::create_encoder(&self.device));
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{
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let render_pass = &mut encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
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color_attachments: &[Some(wgpu::RenderPassColorAttachment {
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view: &view,
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resolve_target: None,
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ops: wgpu::Operations {
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load: wgpu::LoadOp::Clear(CLEAR_COLOR),
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store: wgpu::StoreOp::Store,
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},
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depth_slice: None,
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})],
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..Default::default()
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});
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self.ui_node.draw(render_pass);
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}
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self.queue.submit(std::iter::once(encoder.finish()));
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self.staging_belt.finish();
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output.present();
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self.staging_belt.recall();
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}
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pub fn resize(&mut self, size: &PhysicalSize<u32>) {
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self.config.width = size.width;
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self.config.height = size.height;
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self.surface.configure(&self.device, &self.config);
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self.ui_node.resize(size, &self.queue);
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}
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fn create_encoder(device: &wgpu::Device) -> wgpu::CommandEncoder {
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device.create_command_encoder(&wgpu::CommandEncoderDescriptor {
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label: Some("Render Encoder"),
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})
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}
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pub fn new(window: Arc<Window>) -> Self {
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let size = window.inner_size();
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let instance = wgpu::Instance::new(&wgpu::InstanceDescriptor {
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backends: wgpu::Backends::PRIMARY,
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..Default::default()
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});
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let surface = instance
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.create_surface(window.clone())
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.expect("Could not create window surface!");
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let adapter = instance
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.request_adapter(&wgpu::RequestAdapterOptions {
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power_preference: wgpu::PowerPreference::default(),
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compatible_surface: Some(&surface),
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force_fallback_adapter: false,
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})
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.block_on()
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.expect("Could not get adapter!");
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let (device, queue) = adapter
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.request_device(&wgpu::DeviceDescriptor {
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required_features: wgpu::Features::empty(),
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required_limits: wgpu::Limits::default(),
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..Default::default()
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})
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.block_on()
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.expect("Could not get device!");
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let surface_caps = surface.get_capabilities(&adapter);
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let surface_format = surface_caps
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.formats
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.iter()
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.copied()
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.find(|f| f.is_srgb())
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.unwrap_or(surface_caps.formats[0]);
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let config = wgpu::SurfaceConfiguration {
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usage: wgpu::TextureUsages::RENDER_ATTACHMENT,
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format: surface_format,
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width: size.width,
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height: size.height,
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present_mode: wgpu::PresentMode::AutoVsync,
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alpha_mode: surface_caps.alpha_modes[0],
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desired_maximum_frame_latency: 2,
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view_formats: vec![],
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};
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surface.configure(&device, &config);
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let staging_belt = StagingBelt::new(4096 * 4);
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let encoder = Self::create_encoder(&device);
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let shape_pipeline = UIRenderNode::new(&device, &config);
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Self {
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surface,
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device,
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queue,
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config,
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encoder,
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staging_belt,
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ui_node: shape_pipeline,
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window,
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}
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}
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pub fn window(&self) -> &Window {
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self.window.as_ref()
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}
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}
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