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use std::sync::Arc;
use wgpu::{Adapter, Device, Extent3d, ImageCopyTexture, Instance, Origin3d, Queue, Texture};
pub struct App {
pub instance: Instance,
pub device: Device,
pub adapter: Adapter,
pub queue: Queue,
}
impl App {
pub async fn new() -> Arc<Self> {
let instance = wgpu::Instance::new(wgpu::Backends::all());
let adapter = instance
.request_adapter(&wgpu::RequestAdapterOptions::default())
.await
.unwrap();
let (device, queue) = adapter
.request_device(
&wgpu::DeviceDescriptor {
label: None,
features: wgpu::Features::empty(),
limits: wgpu::Limits::downlevel_defaults(),
},
None,
)
.await
.unwrap();
Arc::new(Self {
adapter,
device,
instance,
queue,
})
}
pub fn copy_texture(&self, source: &Texture, destination: &Texture, size: Extent3d) {
let mut encoder = self
.device
.create_command_encoder(&wgpu::CommandEncoderDescriptor { label: None });
encoder.copy_texture_to_texture(
ImageCopyTexture {
aspect: wgpu::TextureAspect::All,
mip_level: 0,
origin: Origin3d::ZERO,
texture: source,
},
ImageCopyTexture {
aspect: wgpu::TextureAspect::All,
mip_level: 0,
origin: Origin3d::ZERO,
texture: destination,
},
size,
);
self.queue.submit(Some(encoder.finish()));
}
}
|
