mirror of
https://github.com/GraphiteEditor/Graphite.git
synced 2026-09-23 01:18:12 +08:00
Implement basic desktop app with chromium embeded framework (#2874)
* Remove tauri based desktop app * Allow bzip-1.0.6 license * Implement basic cef based desktop app * Cleanup build setup * Use wait until and execute cef loop more frequently * Remove custom do browser work event * Move WinitApp into its own module * Cleanup event handling * Cleanup + Scheudule cef message loop work * Fix cpu overheating on idle: https://xkcd.com/1172/ * Use tracing crate for logging instead of println * Rebase to main --------- Co-authored-by: Dennis Kobert <dennis@kobert.dev>
This commit is contained in:
Timon
@@ -0,0 +1,336 @@
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use std::sync::Arc;
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use thiserror::Error;
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use winit::window::Window;
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pub(crate) struct FrameBuffer {
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buffer: Vec<u8>,
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width: usize,
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height: usize,
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}
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impl std::fmt::Debug for FrameBuffer {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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f.debug_struct("WindowState")
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.field("width", &self.width)
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.field("height", &self.height)
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.field("len", &self.buffer.len())
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.finish()
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}
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}
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#[derive(Error, Debug)]
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pub(crate) enum FrameBufferError {
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#[error("Invalid buffer size {buffer_size}, expected {expected_size} for width {width} multiplied with height {height} multiplied by 4 channels")]
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InvalidSize { buffer_size: usize, expected_size: usize, width: usize, height: usize },
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}
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impl FrameBuffer {
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pub(crate) fn new(buffer: Vec<u8>, width: usize, height: usize) -> Result<Self, FrameBufferError> {
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let fb = Self { buffer, width, height };
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fb.validate_size()?;
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Ok(fb)
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}
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pub(crate) fn buffer(&self) -> &[u8] {
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&self.buffer
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}
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pub(crate) fn width(&self) -> usize {
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self.width
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}
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pub(crate) fn height(&self) -> usize {
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self.height
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}
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fn validate_size(&self) -> Result<(), FrameBufferError> {
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if self.buffer.len() != self.width * self.height * 4 {
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Err(FrameBufferError::InvalidSize {
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buffer_size: self.buffer.len(),
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expected_size: self.width * self.height * 4,
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width: self.width,
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height: self.height,
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})
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} else {
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Ok(())
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}
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}
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}
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#[derive(Debug)]
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pub(crate) struct GraphicsState {
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surface: wgpu::Surface<'static>,
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device: wgpu::Device,
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queue: wgpu::Queue,
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config: wgpu::SurfaceConfiguration,
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texture: Option<wgpu::Texture>,
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bind_group: Option<wgpu::BindGroup>,
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render_pipeline: wgpu::RenderPipeline,
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sampler: wgpu::Sampler,
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}
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impl GraphicsState {
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pub(crate) async fn new(window: Arc<Window>) -> Self {
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let size = window.inner_size();
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let instance = wgpu::Instance::new(&wgpu::InstanceDescriptor {
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backends: wgpu::Backends::PRIMARY,
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..Default::default()
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});
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let surface = instance.create_surface(window).unwrap();
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let adapter = instance
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.request_adapter(&wgpu::RequestAdapterOptions {
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power_preference: wgpu::PowerPreference::default(),
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compatible_surface: Some(&surface),
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force_fallback_adapter: false,
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})
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.await
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.unwrap();
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let (device, queue) = adapter
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.request_device(&wgpu::DeviceDescriptor {
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required_features: wgpu::Features::empty(),
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required_limits: wgpu::Limits::default(),
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label: None,
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memory_hints: Default::default(),
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..Default::default()
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})
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.await
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.unwrap();
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let surface_caps = surface.get_capabilities(&adapter);
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let surface_format = surface_caps.formats.iter().find(|f| f.is_srgb()).copied().unwrap_or(surface_caps.formats[0]);
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let config = wgpu::SurfaceConfiguration {
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usage: wgpu::TextureUsages::RENDER_ATTACHMENT,
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format: surface_format,
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width: size.width,
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height: size.height,
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present_mode: surface_caps.present_modes[0],
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alpha_mode: surface_caps.alpha_modes[0],
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view_formats: vec![],
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desired_maximum_frame_latency: 2,
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};
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surface.configure(&device, &config);
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// Create shader module
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let shader = device.create_shader_module(wgpu::include_wgsl!("render/fullscreen_texture.wgsl"));
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// Create sampler
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let sampler = device.create_sampler(&wgpu::SamplerDescriptor {
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address_mode_u: wgpu::AddressMode::ClampToEdge,
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address_mode_v: wgpu::AddressMode::ClampToEdge,
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address_mode_w: wgpu::AddressMode::ClampToEdge,
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mag_filter: wgpu::FilterMode::Linear,
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min_filter: wgpu::FilterMode::Nearest,
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mipmap_filter: wgpu::FilterMode::Nearest,
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..Default::default()
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});
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let texture_bind_group_layout = device.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor {
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entries: &[
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wgpu::BindGroupLayoutEntry {
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binding: 0,
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visibility: wgpu::ShaderStages::FRAGMENT,
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ty: wgpu::BindingType::Texture {
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multisampled: false,
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view_dimension: wgpu::TextureViewDimension::D2,
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sample_type: wgpu::TextureSampleType::Float { filterable: true },
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},
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count: None,
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},
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wgpu::BindGroupLayoutEntry {
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binding: 1,
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visibility: wgpu::ShaderStages::FRAGMENT,
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ty: wgpu::BindingType::Sampler(wgpu::SamplerBindingType::Filtering),
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count: None,
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},
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],
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label: Some("texture_bind_group_layout"),
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});
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let render_pipeline_layout = device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
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label: Some("Render Pipeline Layout"),
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bind_group_layouts: &[&texture_bind_group_layout],
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push_constant_ranges: &[],
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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: Default::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: config.format,
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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: Default::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: None,
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cache: None,
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});
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let mut graphics_state = Self {
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surface,
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device,
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queue,
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config,
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texture: None,
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bind_group: None,
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render_pipeline,
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sampler,
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};
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// Initialize with a test pattern so we always have something to render
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let width = 800;
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let height = 600;
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let initial_data = vec![34u8; width * height * 4]; // Gray texture #222222FF
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let fb = FrameBuffer::new(initial_data, width, height)
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.map_err(|e| {
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panic!("Failed to create initial FrameBuffer: {}", e);
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})
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.unwrap();
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graphics_state.update_texture(&fb);
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graphics_state
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}
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pub(crate) fn resize(&mut self, width: usize, height: usize) {
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if width > 0 && height > 0 && (self.config.width != width as u32 || self.config.height != height as u32) {
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self.config.width = width as u32;
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self.config.height = height as u32;
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self.surface.configure(&self.device, &self.config);
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}
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}
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pub(crate) fn update_texture(&mut self, frame_buffer: &FrameBuffer) {
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let data = frame_buffer.buffer();
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let width = frame_buffer.width() as u32;
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let height = frame_buffer.height() as u32;
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if width > 0 && height > 0 && (self.config.width != width || self.config.height != height) {
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self.config.width = width;
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self.config.height = height;
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self.surface.configure(&self.device, &self.config);
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}
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let texture = self.device.create_texture(&wgpu::TextureDescriptor {
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label: Some("CEF Texture"),
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size: wgpu::Extent3d {
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width,
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height,
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depth_or_array_layers: 1,
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},
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mip_level_count: 1,
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sample_count: 1,
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dimension: wgpu::TextureDimension::D2,
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format: wgpu::TextureFormat::Bgra8UnormSrgb,
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usage: wgpu::TextureUsages::TEXTURE_BINDING | wgpu::TextureUsages::COPY_DST,
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view_formats: &[],
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});
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self.queue.write_texture(
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wgpu::TexelCopyTextureInfo {
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texture: &texture,
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mip_level: 0,
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origin: wgpu::Origin3d::ZERO,
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aspect: wgpu::TextureAspect::All,
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},
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data,
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wgpu::TexelCopyBufferLayout {
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offset: 0,
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bytes_per_row: Some(4 * width),
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rows_per_image: Some(height),
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},
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wgpu::Extent3d {
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width,
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height,
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depth_or_array_layers: 1,
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},
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);
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let texture_view = texture.create_view(&wgpu::TextureViewDescriptor::default());
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let bind_group = self.device.create_bind_group(&wgpu::BindGroupDescriptor {
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layout: &self.render_pipeline.get_bind_group_layout(0),
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entries: &[
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wgpu::BindGroupEntry {
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binding: 0,
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resource: wgpu::BindingResource::TextureView(&texture_view),
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},
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wgpu::BindGroupEntry {
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binding: 1,
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resource: wgpu::BindingResource::Sampler(&self.sampler),
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},
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],
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label: Some("texture_bind_group"),
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});
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self.texture = Some(texture);
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self.bind_group = Some(bind_group);
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}
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pub(crate) fn render(&mut self) -> Result<(), wgpu::SurfaceError> {
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let output = self.surface.get_current_texture()?;
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let view = output.texture.create_view(&wgpu::TextureViewDescriptor::default());
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let mut encoder = self.device.create_command_encoder(&wgpu::CommandEncoderDescriptor { label: Some("Render Encoder") });
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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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color_attachments: &[Some(wgpu::RenderPassColorAttachment {
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view: &view,
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resolve_target: None,
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ops: wgpu::Operations {
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load: wgpu::LoadOp::Clear(wgpu::Color { r: 0.01, g: 0.01, b: 0.01, a: 1.0 }),
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store: wgpu::StoreOp::Store,
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},
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})],
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depth_stencil_attachment: None,
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occlusion_query_set: None,
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timestamp_writes: None,
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});
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render_pass.set_pipeline(&self.render_pipeline);
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if let Some(bind_group) = &self.bind_group {
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render_pass.set_bind_group(0, bind_group, &[]);
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render_pass.draw(0..6, 0..1); // Draw 3 vertices for fullscreen triangle
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} else {
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tracing::warn!("No bind group available - showing clear color only");
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}
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}
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self.queue.submit(std::iter::once(encoder.finish()));
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output.present();
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Ok(())
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}
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}
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