71 lines
1.8 KiB
Rust
71 lines
1.8 KiB
Rust
use std::io;
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use rgb::RGB8;
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use crate::geometry::*;
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use crate::task::Task;
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use crate::time::Periodically;
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use running_average::RealTimeRunningAverage;
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use std::marker::PhantomData;
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use std::fmt::Debug;
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pub trait Shader: Send + Debug {
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fn draw(&self, surface_coords: &VirtualCoordinates, frame: usize) -> RGB8;
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}
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pub trait Surfaces<T: Surface>: Debug {
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fn new_surface(&mut self, area: &Rectangle<u8, Virtual>) -> Result<T, io::Error>;
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}
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pub trait Surface: Default + Clone + Debug {
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fn with_shader<F: FnMut(&dyn Shader)>(&self, f: F);
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fn set_shader(&mut self, shader: Box<dyn Shader>);
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fn clear_shader(&mut self);
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fn rect(&self) -> Rectangle<u8, Virtual>;
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fn set_rect(&mut self, rect: &Rectangle<u8, Virtual>);
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fn opacity(&self) -> u8;
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fn set_opacity(&mut self, opacity: u8);
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}
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pub trait Framed {
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fn start_frame(&mut self) {}
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fn end_frame(&mut self) {}
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}
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pub trait Display<T: Surface>: Surfaces<T> + Framed {
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fn render_frame(&mut self);
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}
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#[derive(Debug)]
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pub struct Renderer<T: Display<S>, S: Surface> {
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display: T,
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fps: RealTimeRunningAverage<u32>,
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fps_display: Periodically,
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_sfc: PhantomData<S>
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}
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impl<T: Display<S>, S: Surface> Renderer<T, S> {
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pub fn new(display: T) -> Self {
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Self {
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display,
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fps: RealTimeRunningAverage::default(),
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fps_display: Periodically::new_every_n_seconds(5),
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_sfc: PhantomData::default()
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}
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}
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}
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impl<T: Display<S>, S: Surface> Task for Renderer<T, S> {
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fn name(&self) -> &'static str { "Renderer" }
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fn tick(&mut self) {
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self.display.start_frame();
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self.display.render_frame();
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self.display.end_frame();
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self.fps.insert(1);
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self.fps_display.run(|| {
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log::info!("FPS: {} {:?}", self.fps.measurement(), self.display);
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});
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}
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}
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