tessera_ui/renderer/
drawer.rs

1//! Graphics rendering pipeline management.
2//!
3//! This module provides the drawing infrastructure for the unified command system,
4//! handling graphics pipeline registration and command dispatch.
5
6pub mod command;
7mod pipeline;
8
9use crate::{
10    PxPosition,
11    px::{PxRect, PxSize},
12};
13
14pub use command::DrawCommand;
15pub use pipeline::{DrawablePipeline, PipelineRegistry};
16
17/// Drawer manages graphics pipelines and processes draw commands.
18///
19/// The Drawer acts as the central coordinator for all graphics rendering operations,
20/// maintaining a registry of pipelines and dispatching draw commands to the appropriate
21/// pipeline implementations.
22pub struct Drawer {
23    /// Registry containing all registered graphics pipelines
24    pub pipeline_registry: PipelineRegistry,
25}
26
27impl Default for Drawer {
28    fn default() -> Self {
29        Self::new()
30    }
31}
32
33impl Drawer {
34    /// Create a new drawer
35    pub fn new() -> Self {
36        Self {
37            pipeline_registry: PipelineRegistry::new(),
38        }
39    }
40
41    /// Initialize all pipelines at the beginning of each render pass.
42    ///
43    /// This method calls the `begin_pass` method on all registered pipelines,
44    /// allowing them to set up per-pass state such as uniform buffers.
45    pub fn begin_pass(
46        &mut self,
47        gpu: &wgpu::Device,
48        queue: &wgpu::Queue,
49        config: &wgpu::SurfaceConfiguration,
50        render_pass: &mut wgpu::RenderPass<'_>,
51        scene_texture_view: &wgpu::TextureView,
52    ) {
53        self.pipeline_registry.begin_all_passes(
54            gpu,
55            queue,
56            config,
57            render_pass,
58            scene_texture_view,
59        );
60    }
61
62    /// Finalize all pipelines at the end of each render pass.
63    ///
64    /// This method calls the `end_pass` method on all registered pipelines,
65    /// allowing them to perform cleanup or final operations.
66    pub fn end_pass(
67        &mut self,
68        gpu: &wgpu::Device,
69        queue: &wgpu::Queue,
70        config: &wgpu::SurfaceConfiguration,
71        render_pass: &mut wgpu::RenderPass<'_>,
72        scene_texture_view: &wgpu::TextureView,
73    ) {
74        self.pipeline_registry
75            .end_all_passes(gpu, queue, config, render_pass, scene_texture_view);
76    }
77
78    /// Submit a draw command to the appropriate pipeline for rendering.
79    ///
80    /// This method dispatches the command to the correct pipeline based on its type,
81    /// providing all necessary context including GPU resources, render pass, and
82    /// positioning information.
83    ///
84    /// # Arguments
85    /// * `cmd` - The draw command to execute
86    /// * `size` - Size of the component being drawn
87    /// * `start_pos` - Position where drawing should begin
88    /// * `scene_texture_view` - Optional background texture for sampling
89    /// * `compute_texture_view` - Compute pipeline output texture
90    pub fn submit(
91        &mut self,
92        gpu: &wgpu::Device,
93        queue: &wgpu::Queue,
94        config: &wgpu::SurfaceConfiguration,
95        render_pass: &mut wgpu::RenderPass<'_>,
96        commands: &[(&dyn DrawCommand, PxSize, PxPosition)],
97        scene_texture_view: &wgpu::TextureView,
98        clip_rect: Option<PxRect>,
99    ) {
100        self.pipeline_registry.dispatch(
101            gpu,
102            queue,
103            config,
104            render_pass,
105            commands,
106            scene_texture_view,
107            clip_rect,
108        );
109    }
110}
tessera_ui/renderer/drawer.rs

tessera_ui/renderer/
drawer.rs
