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-rw-r--r--wgpu/src/window/backend.rs120
1 files changed, 0 insertions, 120 deletions
diff --git a/wgpu/src/window/backend.rs b/wgpu/src/window/backend.rs
deleted file mode 100644
index e1b77700..00000000
--- a/wgpu/src/window/backend.rs
+++ /dev/null
@@ -1,120 +0,0 @@
-use crate::{window::SwapChain, Renderer, Settings, Target};
-
-use iced_native::{futures, MouseCursor};
-use raw_window_handle::HasRawWindowHandle;
-
-/// A window graphics backend for iced powered by `wgpu`.
-#[derive(Debug)]
-pub struct Backend {
- device: wgpu::Device,
- queue: wgpu::Queue,
- format: wgpu::TextureFormat,
-}
-
-impl iced_native::window::Backend for Backend {
- type Settings = Settings;
- type Renderer = Renderer;
- type Surface = wgpu::Surface;
- type SwapChain = SwapChain;
-
- fn new(settings: Self::Settings) -> (Backend, Renderer) {
- let (mut device, queue) = futures::executor::block_on(async {
- let adapter = wgpu::Adapter::request(
- &wgpu::RequestAdapterOptions {
- power_preference: if settings.antialiasing.is_none() {
- wgpu::PowerPreference::Default
- } else {
- wgpu::PowerPreference::HighPerformance
- },
- compatible_surface: None,
- },
- wgpu::BackendBit::all(),
- )
- .await
- .expect("Request adapter");
-
- adapter
- .request_device(&wgpu::DeviceDescriptor {
- extensions: wgpu::Extensions {
- anisotropic_filtering: false,
- },
- limits: wgpu::Limits { max_bind_groups: 2 },
- })
- .await
- });
-
- let renderer = Renderer::new(&mut device, settings);
-
- (
- Backend {
- device,
- queue,
- format: settings.format,
- },
- renderer,
- )
- }
-
- fn create_surface<W: HasRawWindowHandle>(
- &mut self,
- window: &W,
- ) -> wgpu::Surface {
- wgpu::Surface::create(window)
- }
-
- fn create_swap_chain(
- &mut self,
- surface: &Self::Surface,
- width: u32,
- height: u32,
- ) -> SwapChain {
- SwapChain::new(&self.device, surface, self.format, width, height)
- }
-
- fn draw<T: AsRef<str>>(
- &mut self,
- renderer: &mut Self::Renderer,
- swap_chain: &mut SwapChain,
- output: &<Self::Renderer as iced_native::Renderer>::Output,
- scale_factor: f64,
- overlay: &[T],
- ) -> MouseCursor {
- let (frame, viewport) = swap_chain.next_frame().expect("Next frame");
-
- let mut encoder = self.device.create_command_encoder(
- &wgpu::CommandEncoderDescriptor { label: None },
- );
-
- let _ = encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
- color_attachments: &[wgpu::RenderPassColorAttachmentDescriptor {
- attachment: &frame.view,
- resolve_target: None,
- load_op: wgpu::LoadOp::Clear,
- store_op: wgpu::StoreOp::Store,
- clear_color: wgpu::Color {
- r: 1.0,
- g: 1.0,
- b: 1.0,
- a: 1.0,
- },
- }],
- depth_stencil_attachment: None,
- });
-
- let mouse_cursor = renderer.draw(
- &mut self.device,
- &mut encoder,
- Target {
- texture: &frame.view,
- viewport,
- },
- output,
- scale_factor,
- overlay,
- );
-
- self.queue.submit(&[encoder.finish()]);
-
- mouse_cursor
- }
-}