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45e2971d69
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1 changed files with 83 additions and 89 deletions
172
src/gpu.rs
172
src/gpu.rs
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@ -8,18 +8,18 @@ use wayland_client::{Proxy, protocol::wl_surface::WlSurface};
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use wgpu::util::DeviceExt;
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pub struct AppGpuState {
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wgpu_instance: wgpu::Instance,
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wgpu_adapter: wgpu::Adapter,
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wgpu_device: wgpu::Device,
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wgpu_queue: wgpu::Queue,
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wgpu_render_pipeline: wgpu::RenderPipeline,
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wgpu_screen_size_bind_group_layout: wgpu::BindGroupLayout,
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instance: wgpu::Instance,
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adapter: wgpu::Adapter,
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device: wgpu::Device,
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queue: wgpu::Queue,
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render_pipeline: wgpu::RenderPipeline,
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screen_size_bind_group_layout: wgpu::BindGroupLayout,
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}
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pub struct SurfaceGpuState {
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wgpu_surface: wgpu::Surface<'static>,
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wgpu_screen_size_buffer: wgpu::Buffer,
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wgpu_screen_size_bind_group: wgpu::BindGroup,
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surface: wgpu::Surface<'static>,
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screen_size_buffer: wgpu::Buffer,
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screen_size_bind_group: wgpu::BindGroup,
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}
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#[repr(C)]
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@ -30,20 +30,18 @@ struct ScreenSizeUniform {
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impl AppGpuState {
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pub fn new() -> Result<Self> {
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let wgpu_instance = wgpu::Instance::new(&wgpu::InstanceDescriptor::default());
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let instance = wgpu::Instance::new(&wgpu::InstanceDescriptor::default());
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let wgpu_adapter = pollster::block_on(
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wgpu_instance.request_adapter(&wgpu::RequestAdapterOptions::default()),
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)
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.wrap_err("failed to request adapter")?;
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let adapter =
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pollster::block_on(instance.request_adapter(&wgpu::RequestAdapterOptions::default()))
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.wrap_err("failed to request adapter")?;
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let (wgpu_device, wgpu_queue) =
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pollster::block_on(wgpu_adapter.request_device(&Default::default()))
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.wrap_err("failed to request device")?;
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let (device, queue) = pollster::block_on(adapter.request_device(&Default::default()))
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.wrap_err("failed to request device")?;
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let shader = wgpu_device.create_shader_module(wgpu::include_wgsl!("shader.wgsl"));
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let wgpu_screen_size_bind_group_layout =
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wgpu_device.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor {
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let shader = device.create_shader_module(wgpu::include_wgsl!("shader.wgsl"));
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let screen_size_bind_group_layout =
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device.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor {
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label: None,
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entries: &[wgpu::BindGroupLayoutEntry {
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binding: 0,
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@ -57,58 +55,57 @@ impl AppGpuState {
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}],
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});
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let render_pipeline_layout =
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wgpu_device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
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device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
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label: Some("Render Pipeline Layout"),
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bind_group_layouts: &[&wgpu_screen_size_bind_group_layout],
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bind_group_layouts: &[&screen_size_bind_group_layout],
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immediate_size: 0,
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});
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let wgpu_render_pipeline =
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wgpu_device.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
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label: Some("Render Pipeline"),
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layout: Some(&render_pipeline_layout),
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vertex: wgpu::VertexState {
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module: &shader,
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entry_point: Some("vs_main"),
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buffers: &[],
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compilation_options: wgpu::PipelineCompilationOptions::default(),
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},
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fragment: Some(wgpu::FragmentState {
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module: &shader,
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entry_point: Some("fs_main"),
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targets: &[Some(wgpu::ColorTargetState {
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format: wgpu::TextureFormat::Rgba8UnormSrgb,
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blend: Some(wgpu::BlendState::REPLACE),
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write_mask: wgpu::ColorWrites::ALL,
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})],
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compilation_options: wgpu::PipelineCompilationOptions::default(),
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}),
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primitive: wgpu::PrimitiveState {
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topology: wgpu::PrimitiveTopology::TriangleList,
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strip_index_format: None,
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front_face: wgpu::FrontFace::Ccw,
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cull_mode: Some(wgpu::Face::Back),
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polygon_mode: wgpu::PolygonMode::Fill,
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unclipped_depth: false,
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conservative: false,
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},
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depth_stencil: None,
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multisample: wgpu::MultisampleState {
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count: 1,
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mask: !0,
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alpha_to_coverage_enabled: false,
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},
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multiview_mask: None,
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cache: None,
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});
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let render_pipeline = device.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
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label: Some("Render Pipeline"),
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layout: Some(&render_pipeline_layout),
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vertex: wgpu::VertexState {
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module: &shader,
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entry_point: Some("vs_main"),
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buffers: &[],
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compilation_options: wgpu::PipelineCompilationOptions::default(),
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},
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fragment: Some(wgpu::FragmentState {
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module: &shader,
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entry_point: Some("fs_main"),
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targets: &[Some(wgpu::ColorTargetState {
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format: wgpu::TextureFormat::Rgba8UnormSrgb,
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blend: Some(wgpu::BlendState::REPLACE),
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write_mask: wgpu::ColorWrites::ALL,
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})],
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compilation_options: wgpu::PipelineCompilationOptions::default(),
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}),
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primitive: wgpu::PrimitiveState {
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topology: wgpu::PrimitiveTopology::TriangleList,
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strip_index_format: None,
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front_face: wgpu::FrontFace::Ccw,
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cull_mode: Some(wgpu::Face::Back),
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polygon_mode: wgpu::PolygonMode::Fill,
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unclipped_depth: false,
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conservative: false,
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},
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depth_stencil: None,
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multisample: wgpu::MultisampleState {
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count: 1,
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mask: !0,
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alpha_to_coverage_enabled: false,
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},
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multiview_mask: None,
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cache: None,
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});
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Ok(Self {
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wgpu_instance,
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wgpu_adapter,
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wgpu_device,
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wgpu_queue,
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wgpu_render_pipeline,
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wgpu_screen_size_bind_group_layout,
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instance,
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adapter,
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device,
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queue,
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render_pipeline,
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screen_size_bind_group_layout,
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})
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}
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}
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@ -119,9 +116,9 @@ impl SurfaceGpuState {
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wayland_backend: &wayland_backend::client::Backend,
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wl_surface: &WlSurface,
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) -> Result<Self> {
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let wgpu_surface = unsafe {
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let surface = unsafe {
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gpu_state
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.wgpu_instance
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.instance
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.create_surface_unsafe(wgpu::SurfaceTargetUnsafe::RawHandle {
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raw_display_handle: RawDisplayHandle::Wayland(WaylandDisplayHandle::new(
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NonNull::new(wayland_backend.display_ptr().cast()).unwrap(),
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@ -133,24 +130,24 @@ impl SurfaceGpuState {
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}
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.wrap_err("failed to create wgpu surface")?;
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let wgpu_screen_size_buffer =
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let screen_size_buffer =
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gpu_state
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.wgpu_device
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.device
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.create_buffer_init(&wgpu::util::BufferInitDescriptor {
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label: Some("Screen Size Uniform Buffer"),
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contents: bytemuck::bytes_of(&ScreenSizeUniform { size: [0.0, 0.0] }),
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usage: wgpu::BufferUsages::UNIFORM | wgpu::BufferUsages::COPY_DST,
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});
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let wgpu_screen_size_bind_group =
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let screen_size_bind_group =
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gpu_state
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.wgpu_device
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.device
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.create_bind_group(&wgpu::BindGroupDescriptor {
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layout: &gpu_state.wgpu_screen_size_bind_group_layout,
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layout: &gpu_state.screen_size_bind_group_layout,
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entries: &[wgpu::BindGroupEntry {
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binding: 0,
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resource: wgpu::BindingResource::Buffer(wgpu::BufferBinding {
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buffer: &wgpu_screen_size_buffer,
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buffer: &screen_size_buffer,
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offset: 0,
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size: None,
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}),
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@ -159,22 +156,22 @@ impl SurfaceGpuState {
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});
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Ok(Self {
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wgpu_surface,
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wgpu_screen_size_buffer,
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wgpu_screen_size_bind_group,
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surface,
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screen_size_buffer,
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screen_size_bind_group,
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})
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}
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pub fn resize(&self, gpu_state: &AppGpuState, width: u32, height: u32) {
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gpu_state.wgpu_queue.write_buffer(
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&self.wgpu_screen_size_buffer,
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gpu_state.queue.write_buffer(
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&self.screen_size_buffer,
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0,
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bytemuck::bytes_of(&ScreenSizeUniform {
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size: [width as f32, height as f32],
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}),
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);
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let cap = self.wgpu_surface.get_capabilities(&gpu_state.wgpu_adapter);
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let cap = self.surface.get_capabilities(&gpu_state.adapter);
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let surface_config = wgpu::SurfaceConfiguration {
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usage: wgpu::TextureUsages::RENDER_ATTACHMENT,
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format: cap.formats[0],
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@ -186,20 +183,17 @@ impl SurfaceGpuState {
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// Wayland is inherently a mailbox system.
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present_mode: wgpu::PresentMode::Mailbox,
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};
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self.wgpu_surface
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.configure(&gpu_state.wgpu_device, &surface_config);
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self.surface.configure(&gpu_state.device, &surface_config);
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let surface_texture = self
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.wgpu_surface
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.surface
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.get_current_texture()
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.expect("failed to acquire next swapchain texture");
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let texture_view: wgpu::TextureView = surface_texture
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.texture
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.create_view(&wgpu::TextureViewDescriptor::default());
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let mut encoder = gpu_state
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.wgpu_device
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.create_command_encoder(&Default::default());
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let mut encoder = gpu_state.device.create_command_encoder(&Default::default());
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{
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let mut render_pass = encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
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label: Some("Render Pass"),
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@ -224,12 +218,12 @@ impl SurfaceGpuState {
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..Default::default()
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});
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render_pass.set_pipeline(&gpu_state.wgpu_render_pipeline);
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render_pass.set_bind_group(0, Some(&self.wgpu_screen_size_bind_group), &[]);
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render_pass.set_pipeline(&gpu_state.render_pipeline);
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render_pass.set_bind_group(0, Some(&self.screen_size_bind_group), &[]);
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render_pass.draw(0..6, 0..1);
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}
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gpu_state.wgpu_queue.submit(Some(encoder.finish()));
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gpu_state.queue.submit(Some(encoder.finish()));
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surface_texture.present();
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}
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}
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