piet-gpu-types/src/tile.rs

use piet_gpu_derive::piet_gpu;

piet_gpu! {
    #[gpu_write]
    mod tile {
        struct Path {
            bbox: [u16; 4],
            tiles: Ref<Tile>,
        }
        struct Tile {
            tile: Ref<TileSeg>,
            backdrop: i32,
        }
        // Segments within a tile are represented as a linked list.
        struct TileSeg {
            origin: [f32; 2],
            vector: [f32; 2],
            y_edge: f32,
            next: Ref<TileSeg>,
        }
        struct TransformSeg {
            mat: [f32; 4],
            translate: [f32; 2],
        }
    }
}