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Clear the window properly on redraw

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This commit is contained in:
Héctor Ramón Jiménez 2019-10-03 00:34:15 +02:00
parent 8bb33cd5a0
commit fc38119be3
2 changed files with 61 additions and 5 deletions
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50
wgpu/src/lib.rs
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@ -6,8 +6,9 @@ use iced_native::{
use raw_window_handle::HasRawWindowHandle;
use wgpu::{
Adapter, Device, DeviceDescriptor, Extensions, Instance, Limits,
PowerPreference, RequestAdapterOptions, Surface,
Adapter, CommandEncoderDescriptor, Device, DeviceDescriptor, Extensions,
Instance, Limits, PowerPreference, RequestAdapterOptions, Surface,
SwapChain, SwapChainDescriptor, TextureFormat, TextureUsage,
};
pub struct Renderer {
@ -15,10 +16,15 @@ pub struct Renderer {
surface: Surface,
adapter: Adapter,
device: Device,
swap_chain: SwapChain,
}
impl Renderer {
pub fn new<W: HasRawWindowHandle>(window: &W) -> Self {
pub fn new<W: HasRawWindowHandle>(
window: &W,
width: u32,
height: u32,
) -> Self {
let instance = Instance::new();
let adapter = instance.request_adapter(&RequestAdapterOptions {
@ -34,13 +40,51 @@ impl Renderer {
let surface = instance.create_surface(window.raw_window_handle());
let swap_chain = device.create_swap_chain(
&surface,
&SwapChainDescriptor {
usage: TextureUsage::OUTPUT_ATTACHMENT,
format: TextureFormat::Bgra8UnormSrgb,
width,
height,
present_mode: wgpu::PresentMode::Vsync,
},
);
Self {
instance,
surface,
adapter,
device,
swap_chain,
}
}
pub fn draw(&mut self) {
let frame = self.swap_chain.get_next_texture();
let mut encoder = self
.device
.create_command_encoder(&CommandEncoderDescriptor { todo: 0 });
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,
});
self.device.get_queue().submit(&[encoder.finish()]);
}
}
impl text::Renderer for Renderer {