vello_cpu/dispatch/
mod.rs

1// Copyright 2025 the Vello Authors
2// SPDX-License-Identifier: Apache-2.0 OR MIT
3
4#[cfg(feature = "multithreading")]
5pub(crate) mod multi_threaded;
6pub(crate) mod single_threaded;
7
8use crate::RasterizerSettings;
9use crate::kurbo::{Affine, BezPath, Rect, Stroke};
10use crate::peniko::{BlendMode, Fill};
11use core::fmt::Debug;
12use vello_common::encode::EncodedPaint;
13use vello_common::filter::FilterData;
14use vello_common::mask::Mask;
15use vello_common::paint::{ImageResolver, Paint};
16use vello_common::pixmap::PixmapMut;
17
18pub(crate) trait Dispatcher: Debug + Send {
19    fn has_layers(&self) -> bool;
20    fn fill_path(
21        &mut self,
22        path: &BezPath,
23        fill_rule: Fill,
24        transform: Affine,
25        paint: Paint,
26        blend_mode: BlendMode,
27        aliasing_threshold: Option<u8>,
28        mask: Option<Mask>,
29    );
30    fn stroke_path(
31        &mut self,
32        path: &BezPath,
33        stroke: &Stroke,
34        transform: Affine,
35        paint: Paint,
36        blend_mode: BlendMode,
37        aliasing_threshold: Option<u8>,
38        mask: Option<Mask>,
39    );
40    /// Fill a pixel-aligned rectangle with the current paint.
41    fn fill_rect_fast(
42        &mut self,
43        rect: &Rect,
44        paint: Paint,
45        blend_mode: BlendMode,
46        mask: Option<Mask>,
47    );
48    fn push_clip_path(
49        &mut self,
50        path: &BezPath,
51        fill_rule: Fill,
52        transform: Affine,
53        aliasing_threshold: Option<u8>,
54    );
55    fn pop_clip_path(&mut self);
56    fn push_layer(
57        &mut self,
58        clip_path: Option<&BezPath>,
59        fill_rule: Fill,
60        clip_transform: Affine,
61        blend_mode: BlendMode,
62        opacity: f32,
63        aliasing_threshold: Option<u8>,
64        mask: Option<Mask>,
65        filter_data: Option<FilterData>,
66    );
67    fn pop_layer(&mut self);
68    fn reset(&mut self, width: u16, height: u16);
69    fn flush(&mut self);
70    fn rasterize(
71        &self,
72        target: PixmapMut<'_>,
73        scene_width: u16,
74        scene_height: u16,
75        settings: RasterizerSettings,
76        encoded_paints: &[EncodedPaint],
77        image_resolver: &dyn ImageResolver,
78    );
79    fn is_multi_threaded(&self) -> bool;
80}
vello_cpu/dispatch/mod.rs

vello_cpu/dispatch/
mod.rs
