mraphics_core/render/
pipeline_manager.rs

1use std::collections::HashMap;
2
3use crate::MaterialView;
4
5pub struct PipelineManager {
6    pub pipeline_pool: HashMap<String, wgpu::RenderPipeline>,
7}
8
9impl PipelineManager {
10    pub fn new() -> Self {
11        Self {
12            pipeline_pool: HashMap::new(),
13        }
14    }
15
16    pub fn acquire_pipeline(
17        &mut self,
18        device: &wgpu::Device,
19        texture_format: wgpu::TextureFormat,
20        material: &MaterialView,
21        bind_groups: &[&wgpu::BindGroupLayout],
22        force_update: bool,
23    ) -> &wgpu::RenderPipeline {
24        let pipeline_identifier = &material.identifier;
25
26        if !self.pipeline_pool.contains_key(pipeline_identifier) || force_update {
27            let shader_module = device.create_shader_module(wgpu::ShaderModuleDescriptor {
28                label: Some("Mraphics Shader"),
29                source: wgpu::ShaderSource::Wgsl((&material.shader_code).into()),
30            });
31
32            let render_pipeline_layout =
33                device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
34                    label: Some("Mraphics Render Pipeline Layout"),
35                    bind_group_layouts: bind_groups,
36                    push_constant_ranges: &[],
37                });
38
39            let render_pipeline = device.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
40                label: Some("Mraphics Render Pipeline"),
41                layout: Some(&render_pipeline_layout),
42                vertex: wgpu::VertexState {
43                    module: &shader_module,
44                    entry_point: Some("vs"),
45                    buffers: &[],
46                    compilation_options: wgpu::PipelineCompilationOptions::default(),
47                },
48                fragment: Some(wgpu::FragmentState {
49                    module: &shader_module,
50                    entry_point: Some("fs"),
51                    targets: &[Some(wgpu::ColorTargetState {
52                        format: texture_format,
53                        blend: Some(wgpu::BlendState::REPLACE),
54                        write_mask: wgpu::ColorWrites::ALL,
55                    })],
56                    compilation_options: wgpu::PipelineCompilationOptions::default(),
57                }),
58                primitive: wgpu::PrimitiveState {
59                    topology: wgpu::PrimitiveTopology::TriangleList,
60                    strip_index_format: None,
61                    front_face: wgpu::FrontFace::Ccw,
62                    cull_mode: None,
63                    polygon_mode: wgpu::PolygonMode::Fill,
64                    unclipped_depth: false,
65                    conservative: false,
66                },
67                depth_stencil: None,
68                multisample: wgpu::MultisampleState::default(),
69                multiview: None,
70                cache: None,
71            });
72
73            self.pipeline_pool
74                .insert(String::from(&material.identifier), render_pipeline);
75        }
76
77        // SAFETY: Checked upon
78        self.pipeline_pool.get(pipeline_identifier).unwrap()
79    }
80}
mraphics_core/render/pipeline_manager.rs

mraphics_core/render/
pipeline_manager.rs
