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Reuse a RenderPass as much as possible in iced_wgpu

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Héctor Ramón Jiménez 2023-02-08 00:47:16 +01:00
parent b8c1809ea1
commit 730d6a0756
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GPG key ID: 140CC052C94F138E
8 changed files with 197 additions and 171 deletions
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40
wgpu/src/text.rs
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@ -16,7 +16,7 @@ pub struct Pipeline {
system: Option<System>,
renderers: Vec<glyphon::TextRenderer>,
atlas: glyphon::TextAtlas,
layer: usize,
prepare_layer: usize,
}
#[ouroboros::self_referencing]
@ -55,7 +55,7 @@ impl Pipeline {
),
renderers: Vec::new(),
atlas: glyphon::TextAtlas::new(device, queue, format),
layer: 0,
prepare_layer: 0,
}
}
@ -88,12 +88,12 @@ impl Pipeline {
target_size: Size<u32>,
) {
self.system.as_mut().unwrap().with_mut(|fields| {
if self.renderers.len() <= self.layer {
if self.renderers.len() <= self.prepare_layer {
self.renderers
.push(glyphon::TextRenderer::new(device, queue));
}
let renderer = &mut self.renderers[self.layer];
let renderer = &mut self.renderers[self.prepare_layer];
let keys: Vec<_> = sections
.iter()
@ -179,35 +179,21 @@ impl Pipeline {
&mut glyphon::SwashCache::new(fields.fonts),
)
.expect("Prepare text sections");
self.prepare_layer += 1;
});
}
pub fn render(
&mut self,
encoder: &mut wgpu::CommandEncoder,
target: &wgpu::TextureView,
pub fn render<'a>(
&'a self,
layer: usize,
render_pass: &mut wgpu::RenderPass<'a>,
) {
let mut render_pass =
encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
label: None,
color_attachments: &[Some(wgpu::RenderPassColorAttachment {
view: target,
resolve_target: None,
ops: wgpu::Operations {
load: wgpu::LoadOp::Load,
store: true,
},
})],
depth_stencil_attachment: None,
});
let renderer = &mut self.renderers[self.layer];
let renderer = &self.renderers[layer];
renderer
.render(&self.atlas, &mut render_pass)
.render(&self.atlas, render_pass)
.expect("Render text");
self.layer += 1;
}
pub fn end_frame(&mut self) {
@ -216,7 +202,7 @@ impl Pipeline {
.unwrap()
.with_render_cache_mut(|cache| cache.trim());
self.layer = 0;
self.prepare_layer = 0;
}
pub fn measure(