saymrwulf/xous-core
1
0
Fork 0
mirror of https://github.com/saymrwulf/xous-core.git synced 2026-11-08 04:56:43 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

refine clifford attractor generation

Browse source
This commit is contained in:
nworbnhoj 2022-06-28 07:39:02 +10:00
parent 6d1d514fe5
commit 35cd593f24
1 changed files with 22 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

34
services/modals/src/tests.rs
View file

@ -1,9 +1,9 @@
use super::*;
#[cfg(feature = "ditherpunk")]
use bitmap::PixelType;
use gam::*;
use std::thread;
use xous_names::XousNames;
#[cfg(feature = "ditherpunk")]
use bitmap::PixelType;
const RADIO_TEST: [&'static str; 4] = ["zebra", "cow", "horse", "cat"];
@ -175,23 +175,33 @@ pub fn spawn_test() {
// https://sequelaencollection.home.blog/2d-chaotic-attractors/
#[cfg(feature = "ditherpunk")]
fn clifford() -> Img {
const SIZE: u32 = gam::IMG_MODAL_WIDTH - 10;
const CENTER: f32 = (SIZE / 2) as f32;
const SCALE: f32 = 60.0;
let mut buf = vec![255u8; (SIZE * SIZE).try_into().unwrap()];
// IMW+20, IMW-10 Line (resize + rotate)
// IMW-20, IMW-10 OK ()
// IMW+10, IMW+20 Line (resize)
// IMH-15 IMW-15 Line (rotate)
// width & height chosen to force resize & rotation
const WIDTH: u32 = gam::IMG_MODAL_HEIGHT * 2;
const HEIGHT: u32 = gam::IMG_MODAL_WIDTH * 2;
const X_CENTER: f32 = (WIDTH / 2) as f32;
const Y_CENTER: f32 = (HEIGHT / 2) as f32;
const SCALE: f32 = WIDTH as f32 / 5.1; //70.0;
const STEP: u8 = 32;
const ITERATIONS: u32 = 400000;
let mut buf = vec![255u8; (WIDTH * HEIGHT).try_into().unwrap()];
let (a, b, c, d) = (-2.0, -2.4, 1.1, -0.9);
let (mut x, mut y): (f32, f32) = (0.0, 0.0);
for _ in 0..=4000000 {
for _ in 0..=ITERATIONS {
let x1 = f32::sin(a * y) + c * f32::cos(a * x);
let y1 = f32::sin(b * x) + d * f32::cos(b * y);
(x, y) = (x1, y1);
let (a, b): (u32, u32) = ((x * SCALE + CENTER) as u32, (y * SCALE + CENTER) as u32);
let i: usize = (a + SIZE * b).try_into().unwrap();
if buf[i] > 0 {
buf[i] -= 1;
let (a, b): (u32, u32) = ((x * SCALE + X_CENTER) as u32, (y * SCALE + Y_CENTER) as u32);
let i: usize = (a + WIDTH * b).try_into().unwrap();
if buf[i] >= STEP {
buf[i] -= STEP;
}
}
Img::new(buf, SIZE.try_into().unwrap(), PixelType::U8)
Img::new(buf, WIDTH.try_into().unwrap(), PixelType::U8)
}
fn test_validator(input: TextEntryPayload) -> Option<xous_ipc::String<256>> {