155 lines
4.9 KiB
Rust
155 lines
4.9 KiB
Rust
use crate::graphics::color;
|
|
use crate::quad::{self, Quad};
|
|
use crate::Buffer;
|
|
|
|
use bytemuck::{Pod, Zeroable};
|
|
use std::ops::Range;
|
|
|
|
/// A quad filled with a solid color.
|
|
#[derive(Clone, Copy, Debug, Pod, Zeroable)]
|
|
#[repr(C)]
|
|
pub struct Solid {
|
|
/// The background color data of the quad.
|
|
pub color: color::Packed,
|
|
|
|
/// The [`Quad`] data of the [`Solid`].
|
|
pub quad: Quad,
|
|
}
|
|
|
|
#[derive(Debug)]
|
|
pub struct Layer {
|
|
instances: Buffer<Solid>,
|
|
instance_count: usize,
|
|
}
|
|
|
|
impl Layer {
|
|
pub fn new(device: &wgpu::Device) -> Self {
|
|
let instances = Buffer::new(
|
|
device,
|
|
"iced_wgpu.quad.solid.buffer",
|
|
quad::INITIAL_INSTANCES,
|
|
wgpu::BufferUsages::VERTEX | wgpu::BufferUsages::COPY_DST,
|
|
);
|
|
|
|
Self {
|
|
instances,
|
|
instance_count: 0,
|
|
}
|
|
}
|
|
|
|
pub fn prepare(
|
|
&mut self,
|
|
device: &wgpu::Device,
|
|
queue: &wgpu::Queue,
|
|
instances: &[Solid],
|
|
) {
|
|
let _ = self.instances.resize(device, instances.len());
|
|
let _ = self.instances.write(queue, 0, instances);
|
|
|
|
self.instance_count = instances.len();
|
|
}
|
|
}
|
|
|
|
#[derive(Debug)]
|
|
pub struct Pipeline {
|
|
pipeline: wgpu::RenderPipeline,
|
|
}
|
|
|
|
impl Pipeline {
|
|
pub fn new(
|
|
device: &wgpu::Device,
|
|
format: wgpu::TextureFormat,
|
|
constants_layout: &wgpu::BindGroupLayout,
|
|
) -> Self {
|
|
let layout =
|
|
device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
|
|
label: Some("iced_wgpu.quad.solid.pipeline"),
|
|
push_constant_ranges: &[],
|
|
bind_group_layouts: &[constants_layout],
|
|
});
|
|
|
|
let shader =
|
|
device.create_shader_module(wgpu::ShaderModuleDescriptor {
|
|
label: Some("iced_wgpu.quad.solid.shader"),
|
|
source: wgpu::ShaderSource::Wgsl(std::borrow::Cow::Borrowed(
|
|
concat!(
|
|
include_str!("../shader/quad.wgsl"),
|
|
"\n",
|
|
include_str!("../shader/vertex.wgsl"),
|
|
"\n",
|
|
include_str!("../shader/quad/solid.wgsl"),
|
|
),
|
|
)),
|
|
});
|
|
|
|
let pipeline =
|
|
device.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
|
|
label: Some("iced_wgpu.quad.solid.pipeline"),
|
|
layout: Some(&layout),
|
|
vertex: wgpu::VertexState {
|
|
module: &shader,
|
|
entry_point: "solid_vs_main",
|
|
buffers: &[wgpu::VertexBufferLayout {
|
|
array_stride: std::mem::size_of::<Solid>() as u64,
|
|
step_mode: wgpu::VertexStepMode::Instance,
|
|
attributes: &wgpu::vertex_attr_array!(
|
|
// Color
|
|
0 => Float32x4,
|
|
// Position
|
|
1 => Float32x2,
|
|
// Size
|
|
2 => Float32x2,
|
|
// Border color
|
|
3 => Float32x4,
|
|
// Border radius
|
|
4 => Float32x4,
|
|
// Border width
|
|
5 => Float32,
|
|
// Shadow color
|
|
6 => Float32x4,
|
|
// Shadow offset
|
|
7 => Float32x2,
|
|
// Shadow blur radius
|
|
8 => Float32,
|
|
),
|
|
}],
|
|
},
|
|
fragment: Some(wgpu::FragmentState {
|
|
module: &shader,
|
|
entry_point: "solid_fs_main",
|
|
targets: &quad::color_target_state(format),
|
|
}),
|
|
primitive: wgpu::PrimitiveState {
|
|
topology: wgpu::PrimitiveTopology::TriangleList,
|
|
front_face: wgpu::FrontFace::Cw,
|
|
..Default::default()
|
|
},
|
|
depth_stencil: None,
|
|
multisample: wgpu::MultisampleState {
|
|
count: 1,
|
|
mask: !0,
|
|
alpha_to_coverage_enabled: false,
|
|
},
|
|
multiview: None,
|
|
});
|
|
|
|
Self { pipeline }
|
|
}
|
|
|
|
pub fn render<'a>(
|
|
&'a self,
|
|
render_pass: &mut wgpu::RenderPass<'a>,
|
|
constants: &'a wgpu::BindGroup,
|
|
layer: &'a Layer,
|
|
range: Range<usize>,
|
|
) {
|
|
#[cfg(feature = "tracing")]
|
|
let _ = tracing::info_span!("Wgpu::Quad::Solid", "DRAW").entered();
|
|
|
|
render_pass.set_pipeline(&self.pipeline);
|
|
render_pass.set_bind_group(0, constants, &[]);
|
|
render_pass.set_vertex_buffer(0, layer.instances.slice(..));
|
|
|
|
render_pass.draw(0..6, range.start as u32..range.end as u32);
|
|
}
|
|
}
|