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use std::{
fs::File,
io::Write,
num::NonZeroU32,
time::{Duration, Instant},
};
use forma::{cpu, prelude::*};
use winit::{
dpi::PhysicalSize,
event::VirtualKeyCode,
event_loop::EventLoop,
window::{Window, WindowBuilder},
};
// use cpu;
// use crate::{App, Keyboard, Runner};
fn statistics(durations: &mut Vec<f64>) -> (f64, f64, f64) {
let min = durations
.iter()
.min_by(|a, b| a.partial_cmp(b).unwrap())
.copied()
.unwrap();
let max = durations
.iter()
.max_by(|a, b| a.partial_cmp(b).unwrap())
.copied()
.unwrap();
let count = durations.len() as f64;
(durations.drain(..).sum::<f64>() / count, min, max)
}
fn measure<F: FnOnce()>(f: F) -> Duration {
let start = Instant::now();
f();
start.elapsed()
}
#[derive(Debug)]
pub struct CpuRunner {
composition: Composition,
renderer: cpu::Renderer,
pub buffer: Vec<u8>,
layer_cache: BufferLayerCache,
window: Window,
layout: LinearLayout,
}
impl CpuRunner {
pub fn new(event_loop: &EventLoop<()>, width: u32, height: u32) -> Self {
let composition = Composition::new();
let mut renderer = cpu::Renderer::new();
let layer_cache = renderer.create_buffer_layer_cache().unwrap();
let window = WindowBuilder::new()
.with_title("demo | compose: ???ms, render: ???ms")
.with_inner_size(PhysicalSize::new(width, height))
.build(event_loop)
.unwrap();
let layout = LinearLayout::new(width as usize, width as usize * 4, height as usize);
Self {
composition,
renderer,
layer_cache,
window,
buffer: vec![0; (width * 4 * height) as usize],
layout,
}
}
}
impl CpuRunner {
fn resize(&mut self, width: u32, height: u32) {
self.buffer.resize((width * 4 * height) as usize, 0);
self.layout = LinearLayout::new(width as usize, width as usize * 4, height as usize);
// self.config.width = width;
// self.config.height = height;
// self.surface.configure(&self.device, &self.config);
}
pub fn render(
&mut self,
// app: &mut dyn App,
// buffer: Vec<u8>,
// , elapsed: Duration, keyboard: &Keyboard
) {
// if self.compose_durations.len() == 50 {
// let (compose_avg, compose_min, compose_max) = statistics(&mut self.compose_durations);
// let (render_avg, render_min, render_max) = statistics(&mut self.render_durations);
// self.window.set_title(&format!(
// "demo | compose: {:.2}ms ({:.2}/{:.2}), render: {:.2}ms ({:.2}/{:.2})",
// compose_avg, compose_min, compose_max, render_avg, render_min, render_max,
// ));
// }
// let compose_duration = measure(|| {
// app.compose(&mut self.composition, elapsed, keyboard);
// });
let color = Color {
r: 255.,
g: 255.,
b: 0.,
a: 1.,
};
self.composition
.get_mut_or_insert_default(Order::new(0 as u32).unwrap())
.clear()
.insert(&circle(
100.0, 100.0,
// rng.gen_range(0.0..App::width(self) as f32),
// rng.gen_range(0.0..App::height(self) as f32),
100.,
// rng.gen_range(radius_range.clone()),
))
// .insert(&line(
// (100.0, 100.0),
// (
// 500.0,
// 500.0, // App::width(self) as f32 - 10.,
// // App::height(self) as f32 - 10.,
// ),
// ))
// .set_props(Default::default())
.set_props(Props {
fill_rule: FillRule::NonZero,
func: Func::Draw(Style {
fill: Fill::Solid(color),
..Default::default()
}),
});
// let render_duration = measure(|| {
self.renderer.render(
&mut self.composition,
&mut BufferBuilder::new(&mut self.buffer, &mut self.layout)
.layer_cache(self.layer_cache.clone())
.build(),
BGR1,
Color {
r: 1.0,
g: 1.0,
b: 1.0,
a: 1.0,
},
None,
);
// });
// self.compose_durations
// .push(compose_duration.as_secs_f64() * 1000.0);
// self.render_durations
// .push(render_duration.as_secs_f64() * 1000.0);
// if keyboard.is_key_down(VirtualKeyCode::S) {
// let mut bytes = Vec::with_capacity(self.layout.width() * self.layout.height() * 3);
// for pixel in self.buffer.chunks(4) {
// if let &[b, g, r, _] = pixel {
// bytes.push(r);
// bytes.push(g);
// bytes.push(b);
// }
// }
// let new_path = "capture.ppm";
// let mut output = File::options()
// .write(true)
// .create(true)
// .open(new_path)
// .unwrap();
// output
// .write_all(
// format!(
// "P6\n{} {}\n255\n",
// self.layout.width(),
// self.layout.height()
// )
// .as_bytes(),
// )
// .unwrap();
// output.write_all(&bytes).unwrap();
// }
}
}
fn line(p0: (f32, f32), p1: (f32, f32)) -> Path {
PathBuilder::new()
.move_to(Point::new(p0.0, p0.1))
.line_to(Point::new(p0.0 + 2., p0.1))
.line_to(Point::new(p0.0 + 2., p0.1 + 2.))
.line_to(Point::new(p0.0, p0.1 + 2.))
.build()
}
fn circle(x: f32, y: f32, radius: f32) -> Path {
let weight = 2.0f32.sqrt() / 2.0;
let mut builder = PathBuilder::new();
builder.move_to(Point::new(x + radius, y));
builder.rat_quad_to(
Point::new(x + radius, y - radius),
Point::new(x, y - radius),
weight,
);
builder.rat_quad_to(
Point::new(x - radius, y - radius),
Point::new(x - radius, y),
weight,
);
builder.rat_quad_to(
Point::new(x - radius, y + radius),
Point::new(x, y + radius),
weight,
);
builder.rat_quad_to(
Point::new(x + radius, y + radius),
Point::new(x + radius, y),
weight,
);
builder.build()
}