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Add cosmetic code style changes.
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@kaphula
kaphula committed Mar 14, 2024
1 parent 4568912 commit edc97c0
Showing 1 changed file with 87 additions and 74 deletions.
161 changes: 87 additions & 74 deletions examples/src/multiple_render_targets/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -10,28 +10,30 @@ struct MultiTargetRenderer {
bindgroup: wgpu::BindGroup,
}

fn create_ball_texture_data(width: usize, height: usize) -> Vec<u8> {
// Creates black and white pixel data for the texture to sample.
let mut img_data = Vec::with_capacity(width * height);
let center: Vec2 = Vec2::new(width as f32 * 0.5, height as f32 * 0.5);
let half_distance = width as f32 * 0.5;
for y in 0..width {
for x in 0..height {
let cur_pos = Vec2::new(x as f32, y as f32);
let distance_to_center_normalized = 1.0 - (cur_pos - center).length() / half_distance;
let val: u8 = (u8::MAX as f32 * distance_to_center_normalized) as u8;
img_data.push(val)
}
}
img_data
}

impl MultiTargetRenderer {
fn create_image_texture(device: &wgpu::Device, queue: &wgpu::Queue) -> (wgpu::Texture, wgpu::TextureView) {
fn create_image_texture(
device: &wgpu::Device,
queue: &wgpu::Queue,
) -> (wgpu::Texture, wgpu::TextureView) {
const WIDTH: usize = 256;
const HEIGHT: usize = 256;

fn create_ball_texture_data(width: usize, height: usize) -> Vec<u8> {
// Creates black and white pixel data for the texture to sample.
let mut img_data = Vec::with_capacity(width * height);
let center: Vec2 = Vec2::new(width as f32 * 0.5, height as f32 * 0.5);
let half_distance = width as f32 * 0.5;
for y in 0..width {
for x in 0..height {
let cur_pos = Vec2::new(x as f32, y as f32);
let distance_to_center_normalized =
1.0 - (cur_pos - center).length() / half_distance;
let val: u8 = (u8::MAX as f32 * distance_to_center_normalized) as u8;
img_data.push(val)
}
}
img_data
}

let size = wgpu::Extent3d {
width: WIDTH as u32,
height: HEIGHT as u32,
Expand Down Expand Up @@ -173,7 +175,11 @@ impl MultiTargetRenderer {
}
}

fn draw(&self, encoder: &mut wgpu::CommandEncoder, targets: &[Option<wgpu::RenderPassColorAttachment>]) {
fn draw(
&self,
encoder: &mut wgpu::CommandEncoder,
targets: &[Option<wgpu::RenderPassColorAttachment>],
) {
let mut rpass = encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
label: None,
color_attachments: targets,
Expand All @@ -187,55 +193,6 @@ impl MultiTargetRenderer {
}
}

fn create_target_textures(
device: &wgpu::Device,
format: wgpu::TextureFormat,
width: u32,
height: u32,
) -> TextureTargets {
let size = wgpu::Extent3d {
width,
height,
depth_or_array_layers: 1,
};

let a = device.create_texture(&wgpu::TextureDescriptor {
label: None,
size,
mip_level_count: 1,
sample_count: 1,
dimension: wgpu::TextureDimension::D2,
format,
usage: wgpu::TextureUsages::COPY_DST
| wgpu::TextureUsages::TEXTURE_BINDING
| wgpu::TextureUsages::RENDER_ATTACHMENT,
view_formats: &[format],
});
let b = device.create_texture(&wgpu::TextureDescriptor {
label: None,
size,
mip_level_count: 1,
sample_count: 1,
dimension: wgpu::TextureDimension::D2,
format,
usage: wgpu::TextureUsages::COPY_DST
| wgpu::TextureUsages::TEXTURE_BINDING
| wgpu::TextureUsages::RENDER_ATTACHMENT,
view_formats: &[format],
});
let a_view = a.create_view(&wgpu::TextureViewDescriptor {
format: Some(format),
dimension: Some(wgpu::TextureViewDimension::D2),
..wgpu::TextureViewDescriptor::default()
});
let b_view = b.create_view(&wgpu::TextureViewDescriptor {
format: Some(format),
dimension: Some(wgpu::TextureViewDimension::D2),
..wgpu::TextureViewDescriptor::default()
});
TextureTargets { a_view, b_view }
}

/// Renderer that displays results on the screen.
struct TargetRenderer {
pipeline: wgpu::RenderPipeline,
Expand Down Expand Up @@ -314,13 +271,13 @@ impl TargetRenderer {
multiview: None,
});

let (ba, bb) =
let (bg_a, bg_b) =
Self::create_bindgroups(device, &texture_bind_group_layout, targets, &sampler);
Self {
pipeline: render_pipeline,
bindgroup_layout: texture_bind_group_layout,
bindgroup_a: ba,
bindgroup_b: bb,
bindgroup_a: bg_a,
bindgroup_b: bg_b,
sampler,
}
}
Expand Down Expand Up @@ -414,6 +371,57 @@ struct TextureTargets {
b_view: wgpu::TextureView,
}

impl TextureTargets {
fn new(
device: &wgpu::Device,
format: wgpu::TextureFormat,
width: u32,
height: u32,
) -> TextureTargets {
let size = wgpu::Extent3d {
width,
height,
depth_or_array_layers: 1,
};

let a = device.create_texture(&wgpu::TextureDescriptor {
label: None,
size,
mip_level_count: 1,
sample_count: 1,
dimension: wgpu::TextureDimension::D2,
format,
usage: wgpu::TextureUsages::COPY_DST
| wgpu::TextureUsages::TEXTURE_BINDING
| wgpu::TextureUsages::RENDER_ATTACHMENT,
view_formats: &[format],
});
let b = device.create_texture(&wgpu::TextureDescriptor {
label: None,
size,
mip_level_count: 1,
sample_count: 1,
dimension: wgpu::TextureDimension::D2,
format,
usage: wgpu::TextureUsages::COPY_DST
| wgpu::TextureUsages::TEXTURE_BINDING
| wgpu::TextureUsages::RENDER_ATTACHMENT,
view_formats: &[format],
});
let a_view = a.create_view(&wgpu::TextureViewDescriptor {
format: Some(format),
dimension: Some(wgpu::TextureViewDimension::D2),
..wgpu::TextureViewDescriptor::default()
});
let b_view = b.create_view(&wgpu::TextureViewDescriptor {
format: Some(format),
dimension: Some(wgpu::TextureViewDimension::D2),
..wgpu::TextureViewDescriptor::default()
});
TextureTargets { a_view, b_view }
}
}

struct Example {
drawer: TargetRenderer,
multi_target_renderer: MultiTargetRenderer,
Expand Down Expand Up @@ -456,7 +464,7 @@ impl crate::framework::Example for Example {

// create our target textures that will receive the simultaneous rendering:
let texture_targets =
create_target_textures(device, config.format, config.width, config.height);
TextureTargets::new(device, config.format, config.width, config.height);

// helper renderer that displays the results in 2 separate viewports:
let drawer = TargetRenderer::init(device, &shader, config.format, &texture_targets);
Expand All @@ -470,11 +478,16 @@ impl crate::framework::Example for Example {
}
}

fn resize(&mut self, config: &wgpu::SurfaceConfiguration, device: &wgpu::Device, _queue: &wgpu::Queue) {
fn resize(
&mut self,
config: &wgpu::SurfaceConfiguration,
device: &wgpu::Device,
_queue: &wgpu::Queue,
) {
self.screen_width = config.width;
self.screen_height = config.height;
self.texture_targets =
create_target_textures(device, config.format, config.width, config.height);
TextureTargets::new(device, config.format, config.width, config.height);
self.drawer.rebuild_resources(device, &self.texture_targets);
}

Expand Down

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