Cargo.toml

@@ -1,9 +0,0 @@
-[package]
-name = "metagraphs_poc"
-version = "0.1.0"
-edition = "2018"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
-sdl2 = "0.35.1"

src/main.rs

@@ -1,49 +0,0 @@
-extern crate sdl2;
-
-mod render;
-
-use render::render;
-use sdl2::event::Event;
-use sdl2::keyboard::Keycode;
-use sdl2::pixels::PixelFormatEnum;
-use sdl2::surface::Surface;
-
-fn main() {
-    let sdl_context = sdl2::init().unwrap();
-    let video_subsystem = sdl_context.video().unwrap();
-    let window = video_subsystem
-        .window("metagraphs proof of concept", 800, 800)
-        .position_centered()
-        .opengl()
-        .build()
-        .unwrap();
-    let mut canvas = window.into_canvas().build().unwrap();
-    let texture_creator = canvas.texture_creator();
-    let mut event_pump = sdl_context.event_pump().unwrap();
-    let mut data = Box::new([255u8; 1_920_000]);
-
-    let mut frame_count: u32 = 0;
-
-    'running: loop {
-        for event in event_pump.poll_iter() {
-            match event {
-                Event::Quit { .. }
-                | Event::KeyDown {
-                    keycode: Some(Keycode::Escape),
-                    ..
-                } => break 'running,
-                _ => {}
-            }
-        }
-
-        render(&mut *data, frame_count);
-        let surface =
-            Surface::from_data(&mut *data, 800, 800, 2400, PixelFormatEnum::RGB24).unwrap();
-        let texture = texture_creator
-            .create_texture_from_surface(surface)
-            .unwrap();
-        canvas.copy(&texture, None, None).unwrap();
-        canvas.present();
-        frame_count += 1;
-    }
-}

src/render.rs

@@ -1,34 +0,0 @@
-use std::f64;
-
-use sdl2::pixels::Color;
-
-fn put_pixel(data: &mut [u8], x: usize, y: usize, color: Color) {
-    data[y * 3 * 800 + x * 3] = color.r;
-    data[y * 3 * 800 + x * 3 + 1] = color.g;
-    data[y * 3 * 800 + x * 3 + 2] = color.b;
-}
-
-pub fn render(data: &mut [u8], frame_count: u32) {
-    let time = frame_count as f64 / 60. * 6.28;
-    let ct = f64::cos(time);
-    let st = f64::sin(time);
-    for x in 0..800 {
-        for y in 0..800 {
-            let cx: f64 = f64::cos(st * 1.0 + (x as f64 - 400.) / 39.123 * ct) + 1.;
-            let cy: f64 = f64::cos(ct * 1.1 + (y as f64 - 400.) / 40.123 * st) + 1.;
-            let sx: f64 = f64::sin(ct * 1.2 + (x as f64 - 400.) / 41.123 * ct) + 1.;
-            let sy: f64 = f64::sin(st * 1.3 + (y as f64 - 400.) / 42.123 * st) + 1.;
-            put_pixel(
-                &mut *data,
-                x,
-                y,
-                Color {
-                    r: (cx * 128.) as u8,
-                    g: (cy * sx * 64.) as u8,
-                    b: (sy * 128.) as u8,
-                    a: 0,
-                },
-            );
-        }
-    }
-}