2 unstable releases
0.2.0 | Jan 31, 2021 |
---|---|
0.1.0 | Jan 30, 2021 |
#824 in Graphics APIs
1.5MB
658 lines
ochre
High-quality anti-aliased vector graphics rendering on the GPU.
ochre
rasterizes a path to a set of 8×8-pixel alpha-mask tiles at the path's boundary and n×8-pixel solid spans for the path's interior, which can then be uploaded to the GPU and rendered. Paths are rasterized using a high-quality analytic anti-aliasing method suitable for both text and general vector graphics.
Example
use ochre::{PathCmd, Rasterizer, TileBuilder, Transform, Vec2, TILE_SIZE};
struct Builder;
impl TileBuilder for Builder {
fn tile(&mut self, x: i16, y: i16, data: [u8; TILE_SIZE * TILE_SIZE]) {
println!("tile at ({}, {}):", x, y);
for row in 0..TILE_SIZE {
print!(" ");
for col in 0..TILE_SIZE {
print!("{:3} ", data[row * TILE_SIZE + col]);
}
print!("\n");
}
}
fn span(&mut self, x: i16, y: i16, width: u16) {
println!("span at ({}, {}), width {}", x, y, width);
}
}
fn main() {
let mut builder = Builder;
let mut rasterizer = Rasterizer::new();
rasterizer.fill(&[
PathCmd::Move(Vec2::new(400.0, 300.0)),
PathCmd::Quadratic(Vec2::new(500.0, 200.0), Vec2::new(400.0, 100.0)),
PathCmd::Cubic(Vec2::new(350.0, 150.0), Vec2::new(100.0, 250.0), Vec2::new(400.0, 300.0)),
PathCmd::Close,
], Transform::id());
rasterizer.finish(&mut builder);
}
License
ochre
is distributed under the terms of both the MIT license and the Apache license, version 2.0. Contributions are accepted under the same terms.