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Support choosing display mode

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This commit is contained in:
SonicSwordcane
2024-11-30 23:14:01 -05:00
parent 2cef67b129
commit 4e42179ef3
4 changed files with 131 additions and 55 deletions
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src/window/game_screen.rs
+65 -42
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@@ -1,4 +1,4 @@
use std::sync::Arc;
use std::{collections::HashMap, sync::Arc};
use egui::Widget;
use wgpu::{util::DeviceExt as _, BindGroup, BindGroupLayout, RenderPipeline};
@@ -7,6 +7,7 @@ use crate::graphics::TextureSink;
pub struct GameScreen {
bind_group: Arc<BindGroup>,
pub display_mode: DisplayMode,
}
impl GameScreen {
@@ -52,50 +53,58 @@ impl GameScreen {
bind_group_layouts: &[&bind_group_layout],
push_constant_ranges: &[],
});
let render_pipeline = device.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
label: Some("render pipeline"),
layout: Some(&render_pipeline_layout),
vertex: wgpu::VertexState {
module: &shader,
entry_point: "vs_main",
buffers: &[],
compilation_options: wgpu::PipelineCompilationOptions::default(),
},
fragment: Some(wgpu::FragmentState {
module: &shader,
entry_point: "fs_main",
targets: &[Some(wgpu::ColorTargetState {
format: wgpu::TextureFormat::Bgra8Unorm,
blend: Some(wgpu::BlendState::REPLACE),
write_mask: wgpu::ColorWrites::ALL,
})],
compilation_options: wgpu::PipelineCompilationOptions::default(),
}),
primitive: wgpu::PrimitiveState {
topology: wgpu::PrimitiveTopology::TriangleList,
strip_index_format: None,
front_face: wgpu::FrontFace::Ccw,
cull_mode: Some(wgpu::Face::Back),
polygon_mode: wgpu::PolygonMode::Fill,
unclipped_depth: false,
conservative: false,
},
depth_stencil: None,
multisample: wgpu::MultisampleState {
count: 1,
mask: !0,
alpha_to_coverage_enabled: false,
},
multiview: None,
cache: None,
});
let create_render_pipeline = |entry_point: &str| {
device.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
label: Some("render pipeline"),
layout: Some(&render_pipeline_layout),
vertex: wgpu::VertexState {
module: &shader,
entry_point: "vs_main",
buffers: &[],
compilation_options: wgpu::PipelineCompilationOptions::default(),
},
fragment: Some(wgpu::FragmentState {
module: &shader,
entry_point,
targets: &[Some(wgpu::ColorTargetState {
format: wgpu::TextureFormat::Bgra8Unorm,
blend: Some(wgpu::BlendState::REPLACE),
write_mask: wgpu::ColorWrites::ALL,
})],
compilation_options: wgpu::PipelineCompilationOptions::default(),
}),
primitive: wgpu::PrimitiveState {
topology: wgpu::PrimitiveTopology::TriangleList,
strip_index_format: None,
front_face: wgpu::FrontFace::Ccw,
cull_mode: Some(wgpu::Face::Back),
polygon_mode: wgpu::PolygonMode::Fill,
unclipped_depth: false,
conservative: false,
},
depth_stencil: None,
multisample: wgpu::MultisampleState {
count: 1,
mask: !0,
alpha_to_coverage_enabled: false,
},
multiview: None,
cache: None,
})
};
let mut render_pipelines = HashMap::new();
render_pipelines.insert(DisplayMode::Anaglyph, create_render_pipeline("fs_anaglyph"));
render_pipelines.insert(DisplayMode::LeftEye, create_render_pipeline("fs_lefteye"));
render_pipelines.insert(DisplayMode::RightEye, create_render_pipeline("fs_righteye"));
render_state
.renderer
.write()
.callback_resources
.insert(SharedGameScreenResources {
pipeline: render_pipeline,
render_pipelines,
bind_group_layout,
});
}
@@ -144,19 +153,21 @@ impl GameScreen {
(
Self {
bind_group: Arc::new(bind_group),
display_mode: DisplayMode::Anaglyph,
},
sink,
)
}
}
impl Widget for &GameScreen {
impl Widget for &mut GameScreen {
fn ui(self, ui: &mut egui::Ui) -> egui::Response {
let response = ui.allocate_rect(ui.clip_rect(), egui::Sense::hover());
let callback = egui_wgpu::Callback::new_paint_callback(
response.rect,
GameScreenCallback {
bind_group: self.bind_group.clone(),
display_mode: self.display_mode,
},
);
ui.painter().add(callback);
@@ -166,6 +177,7 @@ impl Widget for &GameScreen {
struct GameScreenCallback {
bind_group: Arc<BindGroup>,
display_mode: DisplayMode,
}
impl egui_wgpu::CallbackTrait for GameScreenCallback {
@@ -186,7 +198,11 @@ impl egui_wgpu::CallbackTrait for GameScreenCallback {
let h = height.min(width / aspect_ratio);
let x = left + (width - w) / 2.0;
let y = top + (height - h) / 2.0;
render_pass.set_pipeline(&resources.pipeline);
let pipeline = resources
.render_pipelines
.get(&self.display_mode)
.unwrap_or_else(|| panic!("Unrecognized display mode {:?}", self.display_mode));
render_pass.set_pipeline(pipeline);
render_pass.set_bind_group(0, &self.bind_group, &[]);
render_pass.set_viewport(x, y, w, h, 0.0, 1.0);
render_pass.draw(0..6, 0..1);
@@ -194,7 +210,7 @@ impl egui_wgpu::CallbackTrait for GameScreenCallback {
}
struct SharedGameScreenResources {
pipeline: RenderPipeline,
render_pipelines: HashMap<DisplayMode, RenderPipeline>,
bind_group_layout: BindGroupLayout,
}
@@ -204,3 +220,10 @@ struct Colors {
left: [f32; 4],
right: [f32; 4],
}
#[derive(Clone, Copy, PartialEq, Eq, Hash, Debug)]
pub enum DisplayMode {
Anaglyph,
LeftEye,
RightEye,
}