diff options
Diffstat (limited to 'wgpu/src/geometry.rs')
| -rw-r--r-- | wgpu/src/geometry.rs | 215 |
1 files changed, 0 insertions, 215 deletions
diff --git a/wgpu/src/geometry.rs b/wgpu/src/geometry.rs deleted file mode 100644 index f79e9c43..00000000 --- a/wgpu/src/geometry.rs +++ /dev/null @@ -1,215 +0,0 @@ -use crate::Transformation; -use iced_native::{Geometry2D, Rectangle, Vertex2D}; -use std::mem; - -#[derive(Debug)] -pub struct Pipeline { - pipeline: wgpu::RenderPipeline, - constants: wgpu::BindGroup, - constants_buffer: wgpu::Buffer, -} - -impl Pipeline { - pub fn new(device: &mut wgpu::Device) -> Pipeline { - let constant_layout = - device.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor { - bindings: &[wgpu::BindGroupLayoutBinding { - binding: 0, - visibility: wgpu::ShaderStage::VERTEX, - ty: wgpu::BindingType::UniformBuffer { dynamic: false }, - }], - }); - - let constants_buffer = device - .create_buffer_mapped( - 1, - wgpu::BufferUsage::UNIFORM | wgpu::BufferUsage::COPY_DST, - ) - .fill_from_slice(&[Uniforms::default()]); - - let constant_bind_group = - device.create_bind_group(&wgpu::BindGroupDescriptor { - layout: &constant_layout, - bindings: &[wgpu::Binding { - binding: 0, - resource: wgpu::BindingResource::Buffer { - buffer: &constants_buffer, - range: 0..std::mem::size_of::<Uniforms>() as u64, - }, - }], - }); - - let layout = - device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor { - bind_group_layouts: &[&constant_layout], - }); - - let vs = include_bytes!("shader/geom2d.vert.spv"); - let vs_module = device.create_shader_module( - &wgpu::read_spirv(std::io::Cursor::new(&vs[..])) - .expect("Read quad vertex shader as SPIR-V"), - ); - - let fs = include_bytes!("shader/geom2d.frag.spv"); - let fs_module = device.create_shader_module( - &wgpu::read_spirv(std::io::Cursor::new(&fs[..])) - .expect("Read quad fragment shader as SPIR-V"), - ); - - let pipeline = - device.create_render_pipeline(&wgpu::RenderPipelineDescriptor { - layout: &layout, - vertex_stage: wgpu::ProgrammableStageDescriptor { - module: &vs_module, - entry_point: "main", - }, - fragment_stage: Some(wgpu::ProgrammableStageDescriptor { - module: &fs_module, - entry_point: "main", - }), - rasterization_state: Some(wgpu::RasterizationStateDescriptor { - front_face: wgpu::FrontFace::Cw, - cull_mode: wgpu::CullMode::None, - depth_bias: 0, - depth_bias_slope_scale: 0.0, - depth_bias_clamp: 0.0, - }), - primitive_topology: wgpu::PrimitiveTopology::TriangleList, - color_states: &[wgpu::ColorStateDescriptor { - format: wgpu::TextureFormat::Bgra8UnormSrgb, - color_blend: wgpu::BlendDescriptor { - src_factor: wgpu::BlendFactor::SrcAlpha, - dst_factor: wgpu::BlendFactor::OneMinusSrcAlpha, - operation: wgpu::BlendOperation::Add, - }, - alpha_blend: wgpu::BlendDescriptor { - src_factor: wgpu::BlendFactor::One, - dst_factor: wgpu::BlendFactor::OneMinusSrcAlpha, - operation: wgpu::BlendOperation::Add, - }, - write_mask: wgpu::ColorWrite::ALL, - }], - depth_stencil_state: None, - index_format: wgpu::IndexFormat::Uint16, - vertex_buffers: &[wgpu::VertexBufferDescriptor { - stride: mem::size_of::<Vertex2D>() as u64, - step_mode: wgpu::InputStepMode::Vertex, - attributes: &[ - // Position - wgpu::VertexAttributeDescriptor { - shader_location: 0, - format: wgpu::VertexFormat::Float2, - offset: 0, - }, - // Color - wgpu::VertexAttributeDescriptor { - shader_location: 1, - format: wgpu::VertexFormat::Float4, - offset: 4 * 2, - }, - ], - }], - sample_count: 1, - sample_mask: !0, - alpha_to_coverage_enabled: false, - }); - - Pipeline { - pipeline, - constants: constant_bind_group, - constants_buffer, - } - } - - pub fn draw( - &mut self, - device: &mut wgpu::Device, - encoder: &mut wgpu::CommandEncoder, - target: &wgpu::TextureView, - transformation: Transformation, - scale: f32, - geometries: &Vec<Geometry2D>, - bounds: Rectangle<u32>, - ) { - let uniforms = Uniforms { - transform: transformation.into(), - scale, - }; - - let constants_buffer = device - .create_buffer_mapped(1, wgpu::BufferUsage::COPY_SRC) - .fill_from_slice(&[uniforms]); - - encoder.copy_buffer_to_buffer( - &constants_buffer, - 0, - &self.constants_buffer, - 0, - std::mem::size_of::<Uniforms>() as u64, - ); - - for geom in geometries { - let vertices_buffer = device - .create_buffer_mapped( - geom.vertices.len(), - wgpu::BufferUsage::VERTEX, - ) - .fill_from_slice(&geom.vertices); - - let indices_buffer = device - .create_buffer_mapped( - geom.indices.len(), - wgpu::BufferUsage::INDEX, - ) - .fill_from_slice(&geom.indices); - - let mut render_pass = - encoder.begin_render_pass(&wgpu::RenderPassDescriptor { - color_attachments: &[ - wgpu::RenderPassColorAttachmentDescriptor { - attachment: target, - resolve_target: None, - load_op: wgpu::LoadOp::Load, - store_op: wgpu::StoreOp::Store, - clear_color: wgpu::Color { - r: 0.0, - g: 0.0, - b: 0.0, - a: 0.0, - }, - }, - ], - depth_stencil_attachment: None, - }); - - render_pass.set_pipeline(&self.pipeline); - render_pass.set_bind_group(0, &self.constants, &[]); - render_pass.set_index_buffer(&indices_buffer, 0); - render_pass.set_vertex_buffers(0, &[(&vertices_buffer, 0)]); - render_pass.set_scissor_rect( - bounds.x, - bounds.y, - bounds.width, - bounds.height, - ); - - render_pass.draw_indexed(0..geom.indices.len() as u32, 0, 0..1); - } - } -} - -#[repr(C)] -#[derive(Debug, Clone, Copy)] -struct Uniforms { - transform: [f32; 16], - scale: f32, -} - -impl Default for Uniforms { - fn default() -> Self { - Self { - transform: *Transformation::identity().as_ref(), - scale: 1.0, - } - } -} |