diff options
Diffstat (limited to 'wgpu/src/offscreen.rs')
| -rw-r--r-- | wgpu/src/offscreen.rs | 188 |
1 files changed, 0 insertions, 188 deletions
diff --git a/wgpu/src/offscreen.rs b/wgpu/src/offscreen.rs deleted file mode 100644 index b25602e4..00000000 --- a/wgpu/src/offscreen.rs +++ /dev/null @@ -1,188 +0,0 @@ -use crate::graphics::color; -use std::borrow::Cow; - -/// A simple compute pipeline to convert any texture to Rgba8UnormSrgb. -#[derive(Debug)] -pub struct Pipeline { - pipeline: wgpu::RenderPipeline, - sampler_bind_group: wgpu::BindGroup, - texture_layout: wgpu::BindGroupLayout, -} - -#[derive(Debug, Copy, Clone, bytemuck::Pod, bytemuck::Zeroable)] -#[repr(C)] -struct Vertex { - ndc: [f32; 2], - uv: [f32; 2], -} - -impl Pipeline { - pub fn new(device: &wgpu::Device) -> Self { - let sampler = device.create_sampler(&wgpu::SamplerDescriptor { - label: Some("iced_wgpu.offscreen.sampler"), - ..Default::default() - }); - - //sampler in 0 - let sampler_layout = - device.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor { - label: Some("iced_wgpu.offscreen.blit.sampler_layout"), - entries: &[wgpu::BindGroupLayoutEntry { - binding: 0, - visibility: wgpu::ShaderStages::FRAGMENT, - ty: wgpu::BindingType::Sampler( - wgpu::SamplerBindingType::NonFiltering, - ), - count: None, - }], - }); - - let sampler_bind_group = - device.create_bind_group(&wgpu::BindGroupDescriptor { - label: Some("iced_wgpu.offscreen.sampler.bind_group"), - layout: &sampler_layout, - entries: &[wgpu::BindGroupEntry { - binding: 0, - resource: wgpu::BindingResource::Sampler(&sampler), - }], - }); - - let texture_layout = - device.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor { - label: Some("iced_wgpu.offscreen.blit.texture_layout"), - entries: &[wgpu::BindGroupLayoutEntry { - binding: 0, - visibility: wgpu::ShaderStages::FRAGMENT, - ty: wgpu::BindingType::Texture { - sample_type: wgpu::TextureSampleType::Float { - filterable: false, - }, - view_dimension: wgpu::TextureViewDimension::D2, - multisampled: false, - }, - count: None, - }], - }); - - let pipeline_layout = - device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor { - label: Some("iced_wgpu.offscreen.blit.pipeline_layout"), - bind_group_layouts: &[&sampler_layout, &texture_layout], - push_constant_ranges: &[], - }); - - let shader = - device.create_shader_module(wgpu::ShaderModuleDescriptor { - label: Some("iced_wgpu.offscreen.blit.shader"), - source: wgpu::ShaderSource::Wgsl(Cow::Borrowed(include_str!( - "shader/blit.wgsl" - ))), - }); - - let pipeline = - device.create_render_pipeline(&wgpu::RenderPipelineDescriptor { - label: Some("iced_wgpu.offscreen.blit.pipeline"), - layout: Some(&pipeline_layout), - vertex: wgpu::VertexState { - module: &shader, - entry_point: "vs_main", - buffers: &[], - }, - fragment: Some(wgpu::FragmentState { - module: &shader, - entry_point: "fs_main", - targets: &[Some(wgpu::ColorTargetState { - format: if color::GAMMA_CORRECTION { - wgpu::TextureFormat::Rgba8UnormSrgb - } else { - wgpu::TextureFormat::Rgba8Unorm - }, - blend: Some(wgpu::BlendState { - color: wgpu::BlendComponent { - src_factor: wgpu::BlendFactor::SrcAlpha, - dst_factor: wgpu::BlendFactor::OneMinusSrcAlpha, - operation: wgpu::BlendOperation::Add, - }, - alpha: wgpu::BlendComponent { - src_factor: wgpu::BlendFactor::One, - dst_factor: wgpu::BlendFactor::OneMinusSrcAlpha, - operation: wgpu::BlendOperation::Add, - }, - }), - write_mask: wgpu::ColorWrites::ALL, - })], - }), - primitive: wgpu::PrimitiveState { - topology: wgpu::PrimitiveTopology::TriangleList, - front_face: wgpu::FrontFace::Cw, - ..Default::default() - }, - depth_stencil: None, - multisample: Default::default(), - multiview: None, - }); - - Self { - pipeline, - sampler_bind_group, - texture_layout, - } - } - - pub fn convert( - &self, - device: &wgpu::Device, - frame: &wgpu::TextureView, - size: wgpu::Extent3d, - encoder: &mut wgpu::CommandEncoder, - ) -> wgpu::Texture { - let texture = device.create_texture(&wgpu::TextureDescriptor { - label: Some("iced_wgpu.offscreen.conversion.source_texture"), - size, - mip_level_count: 1, - sample_count: 1, - dimension: wgpu::TextureDimension::D2, - format: if color::GAMMA_CORRECTION { - wgpu::TextureFormat::Rgba8UnormSrgb - } else { - wgpu::TextureFormat::Rgba8Unorm - }, - usage: wgpu::TextureUsages::RENDER_ATTACHMENT - | wgpu::TextureUsages::COPY_SRC, - view_formats: &[], - }); - - let view = - &texture.create_view(&wgpu::TextureViewDescriptor::default()); - - let texture_bind_group = - device.create_bind_group(&wgpu::BindGroupDescriptor { - label: Some("iced_wgpu.offscreen.blit.texture_bind_group"), - layout: &self.texture_layout, - entries: &[wgpu::BindGroupEntry { - binding: 0, - resource: wgpu::BindingResource::TextureView(frame), - }], - }); - - let mut pass = encoder.begin_render_pass(&wgpu::RenderPassDescriptor { - label: Some("iced_wgpu.offscreen.blit.render_pass"), - color_attachments: &[Some(wgpu::RenderPassColorAttachment { - view, - resolve_target: None, - ops: wgpu::Operations { - load: wgpu::LoadOp::Load, - store: true, - }, - })], - depth_stencil_attachment: None, - }); - - pass.set_pipeline(&self.pipeline); - pass.set_bind_group(0, &self.sampler_bind_group, &[]); - pass.set_bind_group(1, &texture_bind_group, &[]); - pass.draw(0..6, 0..1); - - texture - } -} |