chlorospingus/chloroway
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Properly double buffering

Browse Source
This commit is contained in:
Chlorospingus
2025-05-21 15:50:52 -07:00
parent 5b8475f1a3
commit 64fe7ec941
9 changed files with 203 additions and 125 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
src/graphics/circle.rs
View File

@@ -1,4 +1,4 @@
use crate::wayland::shm::ShmPool;
use crate::wayland::{shm::ShmPool, wl_shm::wl_buffer};
use super::drawable::{Drawable, color_blend};
// x and y are center of circle
@@ -16,24 +16,34 @@ impl Circle {
}
impl Drawable for Circle {
fn draw(&self, shm_pool: &mut ShmPool) {
fn update(&mut self) {
self.x += 1;
}
fn draw(&self, buffer: &wl_buffer, shm_pool: &mut ShmPool) {
for l_row in 1..self.radius {
let inner_diff = (((self.radius-1).pow(2) - l_row.pow(2)) as f64).sqrt();
let outer_diff = ((self.radius.pow(2) - l_row.pow(2)) as f64).sqrt();
let row: Vec<u32> = vec![self.color; 2*(inner_diff.floor() as usize)];
shm_pool.write(&row, (self.y-l_row)*shm_pool.width + self.x - inner_diff.floor() as usize);
shm_pool.write(&row, (self.y+l_row-1)*shm_pool.width + self.x - inner_diff.floor() as usize);
shm_pool.write(&row, (self.y-l_row)*buffer.width + self.x - inner_diff.floor() as usize + buffer.offset);
shm_pool.write(&row, (self.y+l_row-1)*buffer.width + self.x - inner_diff.floor() as usize + buffer.offset);
for l_col in (inner_diff.floor() as usize+1)..(outer_diff.ceil() as usize) {
let distance = ((l_row.pow(2) + l_col.pow(2)) as f64).sqrt();
let offset = (self.y-l_row)*shm_pool.width + self.x - l_col;
shm_pool.write_pixel(color_blend(self.color, shm_pool.read_pixel(offset), distance.fract()), offset as isize);
let offset = (self.y-l_row)*shm_pool.width + self.x + l_col-1;
shm_pool.write_pixel(color_blend(self.color, shm_pool.read_pixel(offset), distance.fract()), offset as isize);
let offset = (self.y+l_row-1)*shm_pool.width + self.x - l_col;
shm_pool.write_pixel(color_blend(self.color, shm_pool.read_pixel(offset), distance.fract()), offset as isize);
let offset = (self.y+l_row-1)*shm_pool.width + self.x + l_col-1;
shm_pool.write_pixel(color_blend(self.color, shm_pool.read_pixel(offset), distance.fract()), offset as isize);
let offset = (self.y-l_row)*buffer.width + self.x - l_col + buffer.offset;
shm_pool.write_pixel(color_blend(self.color, shm_pool.read_pixel(offset).unwrap(), distance.fract()), offset);
let offset = (self.y-l_row)*buffer.width + self.x + l_col-1 + buffer.offset;
shm_pool.write_pixel(color_blend(self.color, shm_pool.read_pixel(offset).unwrap(), distance.fract()), offset);
let offset = (self.y+l_row-1)*buffer.width + self.x - l_col + buffer.offset;
shm_pool.write_pixel(color_blend(self.color, shm_pool.read_pixel(offset).unwrap(), distance.fract()), offset);
let offset = (self.y+l_row-1)*buffer.width + self.x + l_col-1 + buffer.offset;
shm_pool.write_pixel(color_blend(self.color, shm_pool.read_pixel(offset).unwrap(), distance.fract()), offset);
}
}
}
}
impl Into<Box<dyn Drawable>> for Circle {
fn into(self) -> Box<dyn Drawable> {
Box::new(self)
}
}