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Libify piet-wgsl
This creates a new Renderer type that offers fairly simple render_to_texture and render_to_surface methods, the latter of which handles the final blit internally. Also adds a util module with some helpers for device and surface creation. There is a new winit example in piet-wgsl/examples/winit that shows how to make use of it all. This should be fairly trivial to adapt to glazier/xilem.
This commit is contained in:
Chad Brokaw
parent
30af6704ed
commit
016f9de05f
64
Cargo.lock
generated
64
Cargo.lock
generated
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@ -19,15 +19,6 @@ dependencies = [
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"version_check",
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]
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[[package]]
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name = "aho-corasick"
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version = "0.7.19"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b4f55bd91a0978cbfd91c457a164bab8b4001c833b7f323132c0a4e1922dd44e"
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dependencies = [
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"memchr",
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]
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[[package]]
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name = "android_system_properties"
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version = "0.1.5"
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@ -506,19 +497,6 @@ dependencies = [
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"wio",
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]
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[[package]]
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name = "env_logger"
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version = "0.9.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "c90bf5f19754d10198ccb95b70664fc925bd1fc090a0fd9a6ebc54acc8cd6272"
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dependencies = [
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"atty",
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"humantime",
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"log",
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"regex",
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"termcolor",
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]
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[[package]]
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name = "expat-sys"
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version = "2.1.6"
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@ -756,12 +734,6 @@ version = "0.2.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "dfa686283ad6dd069f105e5ab091b04c62850d3e4cf5d67debad1933f55023df"
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[[package]]
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name = "humantime"
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version = "2.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9a3a5bfb195931eeb336b2a7b4d761daec841b97f947d34394601737a7bba5e4"
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[[package]]
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name = "ident_case"
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version = "1.0.1"
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@ -1236,7 +1208,7 @@ dependencies = [
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"raw-window-handle 0.3.4",
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"raw-window-handle 0.5.0",
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"roxmltree",
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"winit",
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"winit 0.27.5",
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]
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[[package]]
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@ -1303,15 +1275,11 @@ name = "piet-wgsl"
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version = "0.1.0"
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dependencies = [
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"bytemuck",
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"env_logger",
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"futures-intrusive",
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"parking_lot",
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"piet-scene",
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"png",
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"pollster",
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"roxmltree",
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"raw-window-handle 0.5.0",
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"wgpu",
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"winit",
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]
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[[package]]
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@ -1520,23 +1488,6 @@ dependencies = [
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"bitflags",
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]
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[[package]]
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name = "regex"
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version = "1.6.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "4c4eb3267174b8c6c2f654116623910a0fef09c4753f8dd83db29c48a0df988b"
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dependencies = [
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"aho-corasick",
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"memchr",
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"regex-syntax",
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]
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[[package]]
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name = "regex-syntax"
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version = "0.6.27"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a3f87b73ce11b1619a3c6332f45341e0047173771e8b8b73f87bfeefb7b56244"
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[[package]]
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name = "remove_dir_all"
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version = "0.5.3"
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@ -2251,6 +2202,17 @@ version = "0.42.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f40009d85759725a34da6d89a94e63d7bdc50a862acf0dbc7c8e488f1edcb6f5"
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[[package]]
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name = "winit"
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version = "0.1.0"
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dependencies = [
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"piet-scene",
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"piet-wgsl",
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"pollster",
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"roxmltree",
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"winit 0.27.5",
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]
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[[package]]
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name = "winit"
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version = "0.27.5"
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@ -9,6 +9,7 @@ members = [
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"piet-gpu-types",
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"piet-scene",
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"piet-wgsl",
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"piet-wgsl/examples/winit",
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"tests",
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]
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@ -82,7 +82,7 @@ pub fn render_svg(sb: &mut SceneBuilder, svg: &PicoSvg, print_stats: bool) {
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#[allow(unused)]
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pub fn render_tiger(sb: &mut SceneBuilder, print_stats: bool) {
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use super::pico_svg::*;
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let xml_str = std::str::from_utf8(include_bytes!("../Ghostscript_Tiger.svg")).unwrap();
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let xml_str = std::str::from_utf8(include_bytes!("../../piet-wgsl/examples/assets/Ghostscript_Tiger.svg")).unwrap();
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let start = std::time::Instant::now();
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let svg = PicoSvg::load(xml_str, 8.0).unwrap();
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if print_stats {
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@ -22,7 +22,7 @@ pub use pinot::FontRef;
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// This is very much a hack to get things working.
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// On Windows, can set this to "c:\\Windows\\Fonts\\seguiemj.ttf" to get color emoji
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const FONT_DATA: &[u8] = include_bytes!("../third-party/Roboto-Regular.ttf");
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const FONT_DATA: &[u8] = include_bytes!("../../piet-wgsl/examples/assets/third-party/Roboto-Regular.ttf");
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pub struct SimpleText {
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gcx: GlyphContext,
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@ -7,17 +7,8 @@ edition = "2021"
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[dependencies]
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wgpu = "0.14"
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env_logger = "0.9.1"
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pollster = "0.2.5"
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raw-window-handle = "0.5"
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futures-intrusive = "0.5.0"
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parking_lot = "0.12"
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bytemuck = { version = "1.12.1", features = ["derive"] }
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png = "0.17.6"
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piet-scene = { path = "../piet-scene" }
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# for picosvg, should be split out
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roxmltree = "0.13"
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# move this to an example
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winit = "0.27.5"
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Before Width: | Height: | Size: 62 KiB After Width: | Height: | Size: 62 KiB |
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@ -1,202 +1,202 @@
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|
||||
Apache License
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Version 2.0, January 2004
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http://www.apache.org/licenses/
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TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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do not modify the License. You may add Your own attribution
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any Contribution intentionally submitted for inclusion in the Work
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by You to the Licensor shall be under the terms and conditions of
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Notwithstanding the above, nothing herein shall supersede or modify
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END OF TERMS AND CONDITIONS
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APPENDIX: How to apply the Apache License to your work.
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To apply the Apache License to your work, attach the following
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you may not use this file except in compliance with the License.
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Unless required by applicable law or agreed to in writing, software
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
|
||||
14
piet-wgsl/examples/winit/Cargo.toml
Normal file
14
piet-wgsl/examples/winit/Cargo.toml
Normal file
|
|
@ -0,0 +1,14 @@
|
|||
[package]
|
||||
name = "winit"
|
||||
version = "0.1.0"
|
||||
edition = "2021"
|
||||
|
||||
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
||||
|
||||
[dependencies]
|
||||
piet-wgsl = { path = "../../../piet-wgsl" }
|
||||
piet-scene = { path = "../../../piet-scene" }
|
||||
winit = "0.27.5"
|
||||
pollster = "0.2.5"
|
||||
# for picosvg
|
||||
roxmltree = "0.13"
|
||||
106
piet-wgsl/examples/winit/src/main.rs
Normal file
106
piet-wgsl/examples/winit/src/main.rs
Normal file
|
|
@ -0,0 +1,106 @@
|
|||
// Copyright 2022 Google LLC
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// https://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
// Also licensed under MIT license, at your choice.
|
||||
|
||||
mod pico_svg;
|
||||
mod simple_text;
|
||||
mod test_scene;
|
||||
|
||||
use piet_scene::{Scene, SceneBuilder};
|
||||
use piet_wgsl::{util::RenderContext, Renderer, Result};
|
||||
|
||||
async fn run() -> Result<()> {
|
||||
use winit::{
|
||||
dpi::LogicalSize,
|
||||
event::*,
|
||||
event_loop::{ControlFlow, EventLoop},
|
||||
window::WindowBuilder,
|
||||
};
|
||||
let event_loop = EventLoop::new();
|
||||
let window = WindowBuilder::new()
|
||||
.with_inner_size(LogicalSize::new(1044, 800))
|
||||
.with_resizable(true)
|
||||
.build(&event_loop)
|
||||
.unwrap();
|
||||
let render_cx = RenderContext::new().await?;
|
||||
let size = window.inner_size();
|
||||
let mut surface = render_cx.create_surface(&window, size.width, size.height);
|
||||
let mut renderer = Renderer::new(&render_cx.device)?;
|
||||
let mut simple_text = simple_text::SimpleText::new();
|
||||
let mut current_frame = 0usize;
|
||||
let mut scene_ix = 0usize;
|
||||
let mut scene = Scene::default();
|
||||
event_loop.run(move |event, _, control_flow| match event {
|
||||
Event::WindowEvent {
|
||||
ref event,
|
||||
window_id,
|
||||
} if window_id == window.id() => match event {
|
||||
WindowEvent::CloseRequested => *control_flow = ControlFlow::Exit,
|
||||
WindowEvent::KeyboardInput { input, .. } => {
|
||||
if input.state == ElementState::Pressed {
|
||||
match input.virtual_keycode {
|
||||
Some(VirtualKeyCode::Left) => scene_ix = scene_ix.saturating_sub(1),
|
||||
Some(VirtualKeyCode::Right) => scene_ix = scene_ix.saturating_add(1),
|
||||
_ => {}
|
||||
}
|
||||
}
|
||||
}
|
||||
WindowEvent::Resized(size) => {
|
||||
render_cx.resize_surface(&mut surface, size.width, size.height);
|
||||
window.request_redraw();
|
||||
}
|
||||
_ => {}
|
||||
},
|
||||
Event::MainEventsCleared => {
|
||||
window.request_redraw();
|
||||
}
|
||||
Event::RedrawRequested(_) => {
|
||||
current_frame += 1;
|
||||
let width = surface.config.width;
|
||||
let height = surface.config.height;
|
||||
let mut builder = SceneBuilder::for_scene(&mut scene);
|
||||
const N_SCENES: usize = 6;
|
||||
match scene_ix % N_SCENES {
|
||||
0 => test_scene::render_anim_frame(&mut builder, &mut simple_text, current_frame),
|
||||
1 => test_scene::render_blend_grid(&mut builder),
|
||||
2 => test_scene::render_tiger(&mut builder, false),
|
||||
3 => test_scene::render_brush_transform(&mut builder, current_frame),
|
||||
4 => test_scene::render_funky_paths(&mut builder),
|
||||
_ => test_scene::render_scene(&mut builder),
|
||||
}
|
||||
builder.finish();
|
||||
let surface_texture = surface
|
||||
.surface
|
||||
.get_current_texture()
|
||||
.expect("failed to get surface texture");
|
||||
renderer
|
||||
.render_to_surface(
|
||||
&render_cx.device,
|
||||
&render_cx.queue,
|
||||
&scene,
|
||||
&surface_texture,
|
||||
width,
|
||||
height,
|
||||
)
|
||||
.expect("failed to render to surface");
|
||||
surface_texture.present();
|
||||
}
|
||||
_ => {}
|
||||
});
|
||||
}
|
||||
|
||||
fn main() {
|
||||
pollster::block_on(run()).unwrap();
|
||||
}
|
||||
|
|
@ -22,7 +22,7 @@ pub use pinot::FontRef;
|
|||
|
||||
// This is very much a hack to get things working.
|
||||
// On Windows, can set this to "c:\\Windows\\Fonts\\seguiemj.ttf" to get color emoji
|
||||
const FONT_DATA: &[u8] = include_bytes!("../../piet-gpu/third-party/Roboto-Regular.ttf");
|
||||
const FONT_DATA: &[u8] = include_bytes!("../../assets/third-party/Roboto-Regular.ttf");
|
||||
|
||||
pub struct SimpleText {
|
||||
gcx: GlyphContext,
|
||||
|
|
@ -1,9 +1,8 @@
|
|||
use super::PicoSvg;
|
||||
use crate::pico_svg::PicoSvg;
|
||||
use crate::simple_text::SimpleText;
|
||||
use piet_scene::kurbo::{Affine, BezPath, Ellipse, PathEl, Point, Rect};
|
||||
use piet_scene::*;
|
||||
|
||||
use crate::SimpleText;
|
||||
|
||||
pub fn render_funky_paths(sb: &mut SceneBuilder) {
|
||||
use PathEl::*;
|
||||
let missing_movetos = [
|
||||
|
|
@ -83,7 +82,7 @@ pub fn render_svg(sb: &mut SceneBuilder, svg: &PicoSvg, print_stats: bool) {
|
|||
pub fn render_tiger(sb: &mut SceneBuilder, print_stats: bool) {
|
||||
use super::pico_svg::*;
|
||||
let xml_str =
|
||||
std::str::from_utf8(include_bytes!("../../piet-gpu/Ghostscript_Tiger.svg")).unwrap();
|
||||
std::str::from_utf8(include_bytes!("../../assets/Ghostscript_Tiger.svg")).unwrap();
|
||||
let start = std::time::Instant::now();
|
||||
let svg = PicoSvg::load(xml_str, 6.0).unwrap();
|
||||
if print_stats {
|
||||
|
|
@ -1,5 +0,0 @@
|
|||
#![allow(dead_code)]
|
||||
|
||||
pub mod clip;
|
||||
pub mod draw;
|
||||
pub mod fine;
|
||||
|
|
@ -1,13 +0,0 @@
|
|||
use bytemuck::{Pod, Zeroable};
|
||||
|
||||
#[derive(Copy, Clone, Debug, Zeroable, Pod)]
|
||||
#[repr(C)]
|
||||
pub struct ClipEl {
|
||||
pub parent_ix: u32,
|
||||
pub pad: [u32; 3],
|
||||
pub bbox: [f32; 4],
|
||||
}
|
||||
|
||||
pub fn parse_clip_els(data: &[u8]) -> Vec<ClipEl> {
|
||||
Vec::from(bytemuck::cast_slice(data))
|
||||
}
|
||||
|
|
@ -1,14 +0,0 @@
|
|||
use bytemuck::{Pod, Zeroable};
|
||||
|
||||
#[derive(Copy, Clone, Debug, Zeroable, Pod)]
|
||||
#[repr(C)]
|
||||
pub struct DrawMonoid {
|
||||
pub path_ix: u32,
|
||||
pub clip_ix: u32,
|
||||
pub scene_offset: u32,
|
||||
pub info_offset: u32,
|
||||
}
|
||||
|
||||
pub fn parse_draw_monoids(data: &[u8]) -> Vec<DrawMonoid> {
|
||||
Vec::from(bytemuck::cast_slice(data))
|
||||
}
|
||||
|
|
@ -1,153 +0,0 @@
|
|||
#[derive(Copy, Clone, Debug)]
|
||||
#[repr(C)]
|
||||
pub struct Fill {
|
||||
pub tile: u32,
|
||||
pub backdrop: i32,
|
||||
}
|
||||
|
||||
#[derive(Copy, Clone, Debug)]
|
||||
#[repr(C)]
|
||||
pub struct Stroke {
|
||||
pub tile: u32,
|
||||
pub half_width: f32,
|
||||
}
|
||||
|
||||
#[derive(Copy, Clone, Debug)]
|
||||
#[repr(C)]
|
||||
pub struct Color {
|
||||
abgr: [u8; 4],
|
||||
}
|
||||
|
||||
#[derive(Copy, Clone, Debug)]
|
||||
#[repr(C)]
|
||||
pub struct LinGrad {
|
||||
pub index: u32,
|
||||
pub line_x: f32,
|
||||
pub line_y: f32,
|
||||
pub line_c: f32,
|
||||
}
|
||||
|
||||
#[derive(Copy, Clone, Debug)]
|
||||
#[repr(C)]
|
||||
pub struct RadGrad {
|
||||
pub index: u32,
|
||||
pub matrix: [f32; 4],
|
||||
pub xlat: [f32; 2],
|
||||
pub c1: [f32; 2],
|
||||
pub ra: f32,
|
||||
pub roff: f32,
|
||||
}
|
||||
|
||||
#[derive(Copy, Clone, Debug)]
|
||||
pub enum Command {
|
||||
Fill(Fill),
|
||||
Stroke(Stroke),
|
||||
Solid,
|
||||
Color(Color),
|
||||
LinGrad(LinGrad),
|
||||
RadGrad(RadGrad),
|
||||
BeginClip,
|
||||
EndClip(u32),
|
||||
End,
|
||||
}
|
||||
|
||||
const PTCL_INITIAL_ALLOC: usize = 64;
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct CommandList {
|
||||
pub tiles: Vec<(u32, u32, Vec<Command>)>,
|
||||
}
|
||||
|
||||
impl CommandList {
|
||||
pub fn parse(width: usize, height: usize, ptcl: &[u8]) -> Self {
|
||||
let mut tiles = vec![];
|
||||
let width_tiles = width / 16;
|
||||
let height_tiles = height / 16;
|
||||
for y in 0..height_tiles {
|
||||
for x in 0..width_tiles {
|
||||
let tile_ix = y * width_tiles + x;
|
||||
let ix = tile_ix * PTCL_INITIAL_ALLOC;
|
||||
let commands = parse_commands(ptcl, ix);
|
||||
if !commands.is_empty() {
|
||||
tiles.push((x as u32, y as u32, commands));
|
||||
}
|
||||
}
|
||||
}
|
||||
Self { tiles }
|
||||
}
|
||||
}
|
||||
|
||||
fn parse_commands(ptcl: &[u8], mut ix: usize) -> Vec<Command> {
|
||||
let mut commands = vec![];
|
||||
let words: &[u32] = bytemuck::cast_slice(ptcl);
|
||||
while ix < words.len() {
|
||||
let tag = words[ix];
|
||||
ix += 1;
|
||||
match tag {
|
||||
0 => break,
|
||||
1 => {
|
||||
commands.push(Command::Fill(Fill {
|
||||
tile: words[ix],
|
||||
backdrop: words[ix + 1] as i32,
|
||||
}));
|
||||
ix += 2;
|
||||
}
|
||||
2 => {
|
||||
commands.push(Command::Stroke(Stroke {
|
||||
tile: words[ix],
|
||||
half_width: bytemuck::cast(words[ix + 1]),
|
||||
}));
|
||||
ix += 2;
|
||||
}
|
||||
3 => {
|
||||
commands.push(Command::Solid);
|
||||
}
|
||||
5 => {
|
||||
commands.push(Command::Color(Color {
|
||||
abgr: bytemuck::cast(words[ix]),
|
||||
}));
|
||||
ix += 1;
|
||||
}
|
||||
6 => {
|
||||
commands.push(Command::LinGrad(LinGrad {
|
||||
index: words[ix],
|
||||
line_x: bytemuck::cast(words[ix + 1]),
|
||||
line_y: bytemuck::cast(words[ix + 2]),
|
||||
line_c: bytemuck::cast(words[ix + 3]),
|
||||
}));
|
||||
ix += 4;
|
||||
}
|
||||
7 => {
|
||||
let matrix = [
|
||||
bytemuck::cast(words[ix + 1]),
|
||||
bytemuck::cast(words[ix + 2]),
|
||||
bytemuck::cast(words[ix + 3]),
|
||||
bytemuck::cast(words[ix + 4]),
|
||||
];
|
||||
let xlat = [bytemuck::cast(words[ix + 5]), bytemuck::cast(words[ix + 6])];
|
||||
let c1 = [bytemuck::cast(words[ix + 7]), bytemuck::cast(words[ix + 8])];
|
||||
commands.push(Command::RadGrad(RadGrad {
|
||||
index: words[ix],
|
||||
matrix,
|
||||
xlat,
|
||||
c1,
|
||||
ra: bytemuck::cast(words[ix + 9]),
|
||||
roff: bytemuck::cast(words[ix + 10]),
|
||||
}));
|
||||
ix += 11;
|
||||
}
|
||||
9 => {
|
||||
commands.push(Command::BeginClip);
|
||||
}
|
||||
10 => {
|
||||
commands.push(Command::EndClip(words[ix]));
|
||||
ix += 1;
|
||||
}
|
||||
11 => {
|
||||
ix = words[ix] as usize;
|
||||
}
|
||||
_ => {}
|
||||
}
|
||||
}
|
||||
commands
|
||||
}
|
||||
274
piet-wgsl/src/lib.rs
Normal file
274
piet-wgsl/src/lib.rs
Normal file
|
|
@ -0,0 +1,274 @@
|
|||
// Copyright 2022 Google LLC
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// https://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
// Also licensed under MIT license, at your choice.
|
||||
|
||||
mod engine;
|
||||
mod ramp;
|
||||
mod render;
|
||||
mod shaders;
|
||||
|
||||
pub mod util;
|
||||
|
||||
use engine::{Engine, ExternalResource};
|
||||
use shaders::FullShaders;
|
||||
|
||||
use piet_scene::Scene;
|
||||
use wgpu::{Device, Queue, SurfaceTexture, Texture, TextureFormat, TextureView};
|
||||
|
||||
/// Catch-all error type.
|
||||
pub type Error = Box<dyn std::error::Error>;
|
||||
|
||||
/// Specialization of `Result` for our catch-all error type.
|
||||
pub type Result<T> = std::result::Result<T, Error>;
|
||||
|
||||
/// Renders a scene into a texture or surface.
|
||||
pub struct Renderer {
|
||||
engine: Engine,
|
||||
shaders: FullShaders,
|
||||
blit: BlitPipeline,
|
||||
target: Option<TargetTexture>,
|
||||
}
|
||||
|
||||
impl Renderer {
|
||||
/// Creates a new renderer for the specified device.
|
||||
pub fn new(device: &Device) -> Result<Self> {
|
||||
let mut engine = Engine::new();
|
||||
let shaders = shaders::full_shaders(device, &mut engine)?;
|
||||
let blit = BlitPipeline::new(device, TextureFormat::Bgra8Unorm);
|
||||
Ok(Self {
|
||||
engine,
|
||||
shaders,
|
||||
blit,
|
||||
target: None,
|
||||
})
|
||||
}
|
||||
|
||||
/// Renders a scene to the target texture.
|
||||
///
|
||||
/// The texture is assumed to be of the specified dimensions and have been created with
|
||||
/// the [wgpu::TextureFormat::Rgba8Unorm] format and the [wgpu::TextureUsages::STORAGE_BINDING]
|
||||
/// flag set.
|
||||
pub fn render_to_texture(
|
||||
&mut self,
|
||||
device: &Device,
|
||||
queue: &Queue,
|
||||
scene: &Scene,
|
||||
texture: &TextureView,
|
||||
width: u32,
|
||||
height: u32,
|
||||
) -> Result<()> {
|
||||
let (recording, target) = render::render_full(&scene, &self.shaders, width, height);
|
||||
let external_resources = [ExternalResource::Image(
|
||||
*target.as_image().unwrap(),
|
||||
texture,
|
||||
)];
|
||||
let _ = self
|
||||
.engine
|
||||
.run_recording(device, queue, &recording, &external_resources)?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// Renders a scene to the target surface.
|
||||
///
|
||||
/// This renders to an intermediate texture and then runs a render pass to blit to the
|
||||
/// specified surface texture.
|
||||
///
|
||||
/// The surface is assumed to be of the specified dimensions and have been created with the
|
||||
/// [wgpu::TextureFormat::Bgra8Unorm] format.
|
||||
pub fn render_to_surface(
|
||||
&mut self,
|
||||
device: &Device,
|
||||
queue: &Queue,
|
||||
scene: &Scene,
|
||||
surface: &SurfaceTexture,
|
||||
width: u32,
|
||||
height: u32,
|
||||
) -> Result<()> {
|
||||
let mut target = self
|
||||
.target
|
||||
.take()
|
||||
.unwrap_or_else(|| TargetTexture::new(device, width, height));
|
||||
// TODO: implement clever resizing semantics here to avoid thrashing the memory allocator
|
||||
// during resize, specifically on metal.
|
||||
if target.width != width || target.height != height {
|
||||
target = TargetTexture::new(device, width, height);
|
||||
}
|
||||
self.render_to_texture(device, queue, scene, &target.view, width, height)?;
|
||||
let mut encoder =
|
||||
device.create_command_encoder(&wgpu::CommandEncoderDescriptor { label: None });
|
||||
{
|
||||
let surface_view = surface
|
||||
.texture
|
||||
.create_view(&wgpu::TextureViewDescriptor::default());
|
||||
let bind_group = device.create_bind_group(&wgpu::BindGroupDescriptor {
|
||||
label: None,
|
||||
layout: &&self.blit.bind_layout,
|
||||
entries: &[wgpu::BindGroupEntry {
|
||||
binding: 0,
|
||||
resource: wgpu::BindingResource::TextureView(&target.view),
|
||||
}],
|
||||
});
|
||||
let mut render_pass = encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
|
||||
label: None,
|
||||
color_attachments: &[Some(wgpu::RenderPassColorAttachment {
|
||||
view: &surface_view,
|
||||
resolve_target: None,
|
||||
ops: wgpu::Operations {
|
||||
load: wgpu::LoadOp::Clear(wgpu::Color::default()),
|
||||
store: true,
|
||||
},
|
||||
})],
|
||||
depth_stencil_attachment: None,
|
||||
});
|
||||
render_pass.set_pipeline(&self.blit.pipeline);
|
||||
render_pass.set_bind_group(0, &bind_group, &[]);
|
||||
render_pass.draw(0..6, 0..1);
|
||||
}
|
||||
queue.submit(Some(encoder.finish()));
|
||||
self.target = Some(target);
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
struct TargetTexture {
|
||||
texture: Texture,
|
||||
view: TextureView,
|
||||
width: u32,
|
||||
height: u32,
|
||||
}
|
||||
|
||||
impl TargetTexture {
|
||||
pub fn new(device: &Device, width: u32, height: u32) -> Self {
|
||||
let texture = device.create_texture(&wgpu::TextureDescriptor {
|
||||
label: None,
|
||||
size: wgpu::Extent3d {
|
||||
width,
|
||||
height,
|
||||
depth_or_array_layers: 1,
|
||||
},
|
||||
mip_level_count: 1,
|
||||
sample_count: 1,
|
||||
dimension: wgpu::TextureDimension::D2,
|
||||
usage: wgpu::TextureUsages::STORAGE_BINDING | wgpu::TextureUsages::TEXTURE_BINDING,
|
||||
format: wgpu::TextureFormat::Rgba8Unorm,
|
||||
});
|
||||
let view = texture.create_view(&wgpu::TextureViewDescriptor::default());
|
||||
Self {
|
||||
texture,
|
||||
view,
|
||||
width,
|
||||
height,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
struct BlitPipeline {
|
||||
bind_layout: wgpu::BindGroupLayout,
|
||||
pipeline: wgpu::RenderPipeline,
|
||||
}
|
||||
|
||||
impl BlitPipeline {
|
||||
fn new(device: &Device, format: TextureFormat) -> Self {
|
||||
const SHADERS: &str = r#"
|
||||
@vertex
|
||||
fn vs_main(@builtin(vertex_index) ix: u32) -> @builtin(position) vec4<f32> {
|
||||
// Generate a full screen quad in NDCs
|
||||
var vertex = vec2<f32>(-1.0, 1.0);
|
||||
switch ix {
|
||||
case 1u: {
|
||||
vertex = vec2<f32>(-1.0, -1.0);
|
||||
}
|
||||
case 2u, 4u: {
|
||||
vertex = vec2<f32>(1.0, -1.0);
|
||||
}
|
||||
case 5u: {
|
||||
vertex = vec2<f32>(1.0, 1.0);
|
||||
}
|
||||
default: {}
|
||||
}
|
||||
return vec4<f32>(vertex, 0.0, 1.0);
|
||||
}
|
||||
|
||||
@group(0) @binding(0)
|
||||
var fine_output: texture_2d<f32>;
|
||||
|
||||
@fragment
|
||||
fn fs_main(@builtin(position) pos: vec4<f32>) -> @location(0) vec4<f32> {
|
||||
return textureLoad(fine_output, vec2<i32>(pos.xy), 0);
|
||||
}
|
||||
"#;
|
||||
|
||||
let shader = device.create_shader_module(wgpu::ShaderModuleDescriptor {
|
||||
label: Some("blit shaders"),
|
||||
source: wgpu::ShaderSource::Wgsl(SHADERS.into()),
|
||||
});
|
||||
let bind_layout = device.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor {
|
||||
label: None,
|
||||
entries: &[wgpu::BindGroupLayoutEntry {
|
||||
visibility: wgpu::ShaderStages::FRAGMENT,
|
||||
binding: 0,
|
||||
ty: wgpu::BindingType::Texture {
|
||||
sample_type: wgpu::TextureSampleType::Float { filterable: true },
|
||||
view_dimension: wgpu::TextureViewDimension::D2,
|
||||
multisampled: false,
|
||||
},
|
||||
count: None,
|
||||
}],
|
||||
});
|
||||
let pipeline_layout = device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
|
||||
label: None,
|
||||
bind_group_layouts: &[&bind_layout],
|
||||
push_constant_ranges: &[],
|
||||
});
|
||||
let pipeline = device.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
|
||||
label: None,
|
||||
layout: Some(&pipeline_layout),
|
||||
vertex: wgpu::VertexState {
|
||||
module: &shader,
|
||||
entry_point: "vs_main",
|
||||
buffers: &[],
|
||||
},
|
||||
fragment: Some(wgpu::FragmentState {
|
||||
module: &shader,
|
||||
entry_point: "fs_main",
|
||||
targets: &[Some(wgpu::ColorTargetState {
|
||||
format,
|
||||
blend: None,
|
||||
write_mask: wgpu::ColorWrites::ALL,
|
||||
})],
|
||||
}),
|
||||
primitive: wgpu::PrimitiveState {
|
||||
topology: wgpu::PrimitiveTopology::TriangleList,
|
||||
strip_index_format: None,
|
||||
front_face: wgpu::FrontFace::Ccw,
|
||||
cull_mode: Some(wgpu::Face::Back),
|
||||
polygon_mode: wgpu::PolygonMode::Fill,
|
||||
unclipped_depth: false,
|
||||
conservative: false,
|
||||
},
|
||||
depth_stencil: None,
|
||||
multisample: wgpu::MultisampleState {
|
||||
count: 1,
|
||||
mask: !0,
|
||||
alpha_to_coverage_enabled: false,
|
||||
},
|
||||
multiview: None,
|
||||
});
|
||||
Self {
|
||||
bind_layout,
|
||||
pipeline,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -1,348 +0,0 @@
|
|||
// Copyright 2022 Google LLC
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// https://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
// Also licensed under MIT license, at your choice.
|
||||
|
||||
//! A simple application to run a compute shader.
|
||||
|
||||
use engine::{Engine, Error, ExternalResource};
|
||||
|
||||
use piet_scene::{Scene, SceneBuilder};
|
||||
use wgpu::{Device, Instance, Limits, Queue, Surface, SurfaceConfiguration};
|
||||
use winit::window::Window;
|
||||
|
||||
mod debug;
|
||||
mod engine;
|
||||
mod pico_svg;
|
||||
mod ramp;
|
||||
mod render;
|
||||
mod shaders;
|
||||
mod simple_text;
|
||||
mod test_scene;
|
||||
|
||||
use pico_svg::PicoSvg;
|
||||
use simple_text::SimpleText;
|
||||
|
||||
pub struct Dimensions {
|
||||
width: u32,
|
||||
height: u32,
|
||||
}
|
||||
|
||||
pub struct WgpuState {
|
||||
pub instance: Instance,
|
||||
pub device: Device,
|
||||
pub queue: Queue,
|
||||
pub surface: Option<Surface>,
|
||||
pub surface_config: SurfaceConfiguration,
|
||||
}
|
||||
|
||||
impl WgpuState {
|
||||
pub async fn new(window: Option<&Window>) -> Result<Self, Box<dyn std::error::Error>> {
|
||||
let instance = Instance::new(wgpu::Backends::PRIMARY);
|
||||
let adapter = instance.request_adapter(&Default::default()).await.unwrap();
|
||||
let features = adapter.features();
|
||||
let mut limits = Limits::default();
|
||||
limits.max_storage_buffers_per_shader_stage = 16;
|
||||
let (device, queue) = adapter
|
||||
.request_device(
|
||||
&wgpu::DeviceDescriptor {
|
||||
label: None,
|
||||
features: features
|
||||
& (wgpu::Features::TIMESTAMP_QUERY | wgpu::Features::CLEAR_TEXTURE),
|
||||
limits,
|
||||
},
|
||||
None,
|
||||
)
|
||||
.await?;
|
||||
let (surface, surface_config) = if let Some(window) = window {
|
||||
let surface = unsafe { instance.create_surface(window) };
|
||||
let size = window.inner_size();
|
||||
// let format = surface.get_supported_formats(&adapter)[0];
|
||||
let format = wgpu::TextureFormat::Bgra8Unorm;
|
||||
println!("surface: {:?} {:?}", size, format);
|
||||
let surface_config = wgpu::SurfaceConfiguration {
|
||||
usage: wgpu::TextureUsages::RENDER_ATTACHMENT,
|
||||
format,
|
||||
width: size.width,
|
||||
height: size.height,
|
||||
present_mode: wgpu::PresentMode::Fifo,
|
||||
alpha_mode: wgpu::CompositeAlphaMode::Auto,
|
||||
};
|
||||
surface.configure(&device, &surface_config);
|
||||
(Some(surface), surface_config)
|
||||
} else {
|
||||
let surface_config = wgpu::SurfaceConfiguration {
|
||||
usage: wgpu::TextureUsages::empty(),
|
||||
format: wgpu::TextureFormat::Bgra8Unorm,
|
||||
width: 0,
|
||||
height: 0,
|
||||
present_mode: wgpu::PresentMode::Fifo,
|
||||
alpha_mode: wgpu::CompositeAlphaMode::Auto,
|
||||
};
|
||||
(None, surface_config)
|
||||
};
|
||||
Ok(Self {
|
||||
instance,
|
||||
device,
|
||||
queue,
|
||||
surface,
|
||||
surface_config,
|
||||
})
|
||||
}
|
||||
|
||||
pub fn create_target_texture(&self) -> (wgpu::Texture, wgpu::TextureView) {
|
||||
let texture = self.device.create_texture(&wgpu::TextureDescriptor {
|
||||
label: None,
|
||||
size: wgpu::Extent3d {
|
||||
width: self.surface_config.width,
|
||||
height: self.surface_config.height,
|
||||
depth_or_array_layers: 1,
|
||||
},
|
||||
mip_level_count: 1,
|
||||
sample_count: 1,
|
||||
dimension: wgpu::TextureDimension::D2,
|
||||
usage: wgpu::TextureUsages::STORAGE_BINDING | wgpu::TextureUsages::TEXTURE_BINDING,
|
||||
format: wgpu::TextureFormat::Rgba8Unorm,
|
||||
});
|
||||
let view = texture.create_view(&wgpu::TextureViewDescriptor::default());
|
||||
(texture, view)
|
||||
}
|
||||
}
|
||||
|
||||
async fn run_interactive() -> Result<(), Error> {
|
||||
use winit::{
|
||||
dpi::LogicalSize,
|
||||
event::*,
|
||||
event_loop::{ControlFlow, EventLoop},
|
||||
window::WindowBuilder,
|
||||
};
|
||||
let event_loop = EventLoop::new();
|
||||
let window = WindowBuilder::new()
|
||||
.with_inner_size(LogicalSize::new(1044, 800))
|
||||
.with_resizable(true)
|
||||
.build(&event_loop)
|
||||
.unwrap();
|
||||
let mut state = WgpuState::new(Some(&window)).await?;
|
||||
let mut engine = Engine::new();
|
||||
let full_shaders = shaders::full_shaders(&state.device, &mut engine)?;
|
||||
let (blit_layout, blit_pipeline) = create_blit_pipeline(&state);
|
||||
let mut simple_text = SimpleText::new();
|
||||
let mut current_frame = 0usize;
|
||||
let mut scene_ix = 0usize;
|
||||
let (mut _target_texture, mut target_view) = state.create_target_texture();
|
||||
event_loop.run(move |event, _, control_flow| match event {
|
||||
Event::WindowEvent {
|
||||
ref event,
|
||||
window_id,
|
||||
} if window_id == window.id() => match event {
|
||||
WindowEvent::CloseRequested => *control_flow = ControlFlow::Exit,
|
||||
WindowEvent::KeyboardInput { input, .. } => {
|
||||
if input.state == ElementState::Pressed {
|
||||
match input.virtual_keycode {
|
||||
Some(VirtualKeyCode::Left) => scene_ix = scene_ix.saturating_sub(1),
|
||||
Some(VirtualKeyCode::Right) => scene_ix = scene_ix.saturating_add(1),
|
||||
_ => {}
|
||||
}
|
||||
}
|
||||
}
|
||||
WindowEvent::Resized(size) => {
|
||||
state.surface_config.width = size.width;
|
||||
state.surface_config.height = size.height;
|
||||
state
|
||||
.surface
|
||||
.as_ref()
|
||||
.unwrap()
|
||||
.configure(&state.device, &state.surface_config);
|
||||
let (t, v) = state.create_target_texture();
|
||||
_target_texture = t;
|
||||
target_view = v;
|
||||
window.request_redraw();
|
||||
}
|
||||
_ => {}
|
||||
},
|
||||
Event::MainEventsCleared => {
|
||||
window.request_redraw();
|
||||
}
|
||||
Event::RedrawRequested(_) => {
|
||||
current_frame += 1;
|
||||
let surface_texture = state
|
||||
.surface
|
||||
.as_ref()
|
||||
.unwrap()
|
||||
.get_current_texture()
|
||||
.unwrap();
|
||||
let dimensions = Dimensions {
|
||||
width: state.surface_config.width,
|
||||
height: state.surface_config.height,
|
||||
};
|
||||
let mut scene = Scene::default();
|
||||
let mut builder = SceneBuilder::for_scene(&mut scene);
|
||||
const N_SCENES: usize = 6;
|
||||
match scene_ix % N_SCENES {
|
||||
0 => test_scene::render_anim_frame(&mut builder, &mut simple_text, current_frame),
|
||||
1 => test_scene::render_blend_grid(&mut builder),
|
||||
2 => test_scene::render_tiger(&mut builder, false),
|
||||
3 => test_scene::render_brush_transform(&mut builder, current_frame),
|
||||
4 => test_scene::render_funky_paths(&mut builder),
|
||||
_ => test_scene::render_scene(&mut builder),
|
||||
}
|
||||
builder.finish();
|
||||
let (recording, target) = render::render_full(&scene, &full_shaders, &dimensions);
|
||||
let external_resources = [ExternalResource::Image(
|
||||
*target.as_image().unwrap(),
|
||||
&target_view,
|
||||
)];
|
||||
let _ = engine
|
||||
.run_recording(&state.device, &state.queue, &recording, &external_resources)
|
||||
.unwrap();
|
||||
let mut encoder = state
|
||||
.device
|
||||
.create_command_encoder(&wgpu::CommandEncoderDescriptor { label: None });
|
||||
{
|
||||
let surface_view = surface_texture
|
||||
.texture
|
||||
.create_view(&wgpu::TextureViewDescriptor::default());
|
||||
let bind_group = state.device.create_bind_group(&wgpu::BindGroupDescriptor {
|
||||
label: None,
|
||||
layout: &blit_layout,
|
||||
entries: &[wgpu::BindGroupEntry {
|
||||
binding: 0,
|
||||
resource: wgpu::BindingResource::TextureView(&target_view),
|
||||
}],
|
||||
});
|
||||
let mut render_pass = encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
|
||||
label: None,
|
||||
color_attachments: &[Some(wgpu::RenderPassColorAttachment {
|
||||
view: &surface_view,
|
||||
resolve_target: None,
|
||||
ops: wgpu::Operations {
|
||||
load: wgpu::LoadOp::Clear(wgpu::Color::default()),
|
||||
store: true,
|
||||
},
|
||||
})],
|
||||
depth_stencil_attachment: None,
|
||||
});
|
||||
render_pass.set_pipeline(&blit_pipeline);
|
||||
render_pass.set_bind_group(0, &bind_group, &[]);
|
||||
render_pass.draw(0..6, 0..1);
|
||||
}
|
||||
state.queue.submit(Some(encoder.finish()));
|
||||
surface_texture.present();
|
||||
}
|
||||
_ => {}
|
||||
});
|
||||
}
|
||||
|
||||
fn main() {
|
||||
pollster::block_on(run_interactive()).unwrap();
|
||||
}
|
||||
|
||||
// Fit this into the recording code somehow?
|
||||
fn create_blit_pipeline(state: &WgpuState) -> (wgpu::BindGroupLayout, wgpu::RenderPipeline) {
|
||||
const SHADERS: &str = r#"
|
||||
@vertex
|
||||
fn vs_main(@builtin(vertex_index) ix: u32) -> @builtin(position) vec4<f32> {
|
||||
// Generate a full screen quad in NDCs
|
||||
var vertex = vec2<f32>(-1.0, 1.0);
|
||||
switch ix {
|
||||
case 1u: {
|
||||
vertex = vec2<f32>(-1.0, -1.0);
|
||||
}
|
||||
case 2u, 4u: {
|
||||
vertex = vec2<f32>(1.0, -1.0);
|
||||
}
|
||||
case 5u: {
|
||||
vertex = vec2<f32>(1.0, 1.0);
|
||||
}
|
||||
default: {}
|
||||
}
|
||||
return vec4<f32>(vertex, 0.0, 1.0);
|
||||
}
|
||||
|
||||
@group(0) @binding(0)
|
||||
var fine_output: texture_2d<f32>;
|
||||
|
||||
@fragment
|
||||
fn fs_main(@builtin(position) pos: vec4<f32>) -> @location(0) vec4<f32> {
|
||||
return textureLoad(fine_output, vec2<i32>(pos.xy), 0);
|
||||
}
|
||||
"#;
|
||||
|
||||
let shader = state
|
||||
.device
|
||||
.create_shader_module(wgpu::ShaderModuleDescriptor {
|
||||
label: Some("blit shaders"),
|
||||
source: wgpu::ShaderSource::Wgsl(SHADERS.into()),
|
||||
});
|
||||
let bind_group_layout =
|
||||
state
|
||||
.device
|
||||
.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor {
|
||||
label: None,
|
||||
entries: &[wgpu::BindGroupLayoutEntry {
|
||||
visibility: wgpu::ShaderStages::FRAGMENT,
|
||||
binding: 0,
|
||||
ty: wgpu::BindingType::Texture {
|
||||
sample_type: wgpu::TextureSampleType::Float { filterable: true },
|
||||
view_dimension: wgpu::TextureViewDimension::D2,
|
||||
multisampled: false,
|
||||
},
|
||||
count: None,
|
||||
}],
|
||||
});
|
||||
let pipeline_layout = state
|
||||
.device
|
||||
.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
|
||||
label: None,
|
||||
bind_group_layouts: &[&bind_group_layout],
|
||||
push_constant_ranges: &[],
|
||||
});
|
||||
let pipeline = state
|
||||
.device
|
||||
.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
|
||||
label: None,
|
||||
layout: Some(&pipeline_layout),
|
||||
vertex: wgpu::VertexState {
|
||||
module: &shader,
|
||||
entry_point: "vs_main",
|
||||
buffers: &[],
|
||||
},
|
||||
fragment: Some(wgpu::FragmentState {
|
||||
module: &shader,
|
||||
entry_point: "fs_main",
|
||||
targets: &[Some(wgpu::ColorTargetState {
|
||||
format: state.surface_config.format,
|
||||
blend: None,
|
||||
write_mask: wgpu::ColorWrites::ALL,
|
||||
})],
|
||||
}),
|
||||
primitive: wgpu::PrimitiveState {
|
||||
topology: wgpu::PrimitiveTopology::TriangleList,
|
||||
strip_index_format: None,
|
||||
front_face: wgpu::FrontFace::Ccw,
|
||||
cull_mode: Some(wgpu::Face::Back),
|
||||
polygon_mode: wgpu::PolygonMode::Fill,
|
||||
unclipped_depth: false,
|
||||
conservative: false,
|
||||
},
|
||||
depth_stencil: None,
|
||||
multisample: wgpu::MultisampleState {
|
||||
count: 1,
|
||||
mask: !0,
|
||||
alpha_to_coverage_enabled: false,
|
||||
},
|
||||
multiview: None,
|
||||
});
|
||||
(bind_group_layout, pipeline)
|
||||
}
|
||||
|
|
@ -6,7 +6,6 @@ use piet_scene::Scene;
|
|||
use crate::{
|
||||
engine::{BufProxy, ImageFormat, ImageProxy, Recording, ResourceProxy},
|
||||
shaders::{self, FullShaders, Shaders},
|
||||
Dimensions,
|
||||
};
|
||||
|
||||
const TAG_MONOID_SIZE: u64 = 12;
|
||||
|
|
@ -62,6 +61,7 @@ pub const fn next_multiple_of(val: u32, rhs: u32) -> u32 {
|
|||
}
|
||||
}
|
||||
|
||||
#[allow(unused)]
|
||||
fn render(scene: &Scene, shaders: &Shaders) -> (Recording, BufProxy) {
|
||||
let mut recording = Recording::default();
|
||||
let data = scene.data();
|
||||
|
|
@ -140,7 +140,8 @@ fn render(scene: &Scene, shaders: &Shaders) -> (Recording, BufProxy) {
|
|||
pub fn render_full(
|
||||
scene: &Scene,
|
||||
shaders: &FullShaders,
|
||||
dimensions: &Dimensions,
|
||||
width: u32,
|
||||
height: u32,
|
||||
) -> (Recording, ResourceProxy) {
|
||||
let mut recording = Recording::default();
|
||||
let mut ramps = crate::ramp::RampCache::default();
|
||||
|
|
@ -209,15 +210,15 @@ pub fn render_full(
|
|||
let n_drawobj = n_path;
|
||||
let n_clip = data.n_clip;
|
||||
|
||||
let new_width = next_multiple_of(dimensions.width, 16);
|
||||
let new_height = next_multiple_of(dimensions.height, 16);
|
||||
let new_width = next_multiple_of(width, 16);
|
||||
let new_height = next_multiple_of(height, 16);
|
||||
|
||||
let config = Config {
|
||||
// TODO: Replace with div_ceil once stable
|
||||
width_in_tiles: new_width / 16,
|
||||
height_in_tiles: new_height / 16,
|
||||
target_width: dimensions.width,
|
||||
target_height: dimensions.height,
|
||||
target_width: width,
|
||||
target_height: height,
|
||||
n_drawobj,
|
||||
n_path,
|
||||
n_clip,
|
||||
|
|
@ -402,7 +403,7 @@ pub fn render_full(
|
|||
ptcl_buf,
|
||||
],
|
||||
);
|
||||
let out_image = ImageProxy::new(dimensions.width, dimensions.height, ImageFormat::Rgba8);
|
||||
let out_image = ImageProxy::new(width, height, ImageFormat::Rgba8);
|
||||
recording.dispatch(
|
||||
shaders.fine,
|
||||
(config.width_in_tiles, config.height_in_tiles, 1),
|
||||
|
|
|
|||
85
piet-wgsl/src/util.rs
Normal file
85
piet-wgsl/src/util.rs
Normal file
|
|
@ -0,0 +1,85 @@
|
|||
// Copyright 2022 Google LLC
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// https://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
// Also licensed under MIT license, at your choice.
|
||||
|
||||
//! Simple helpers for managing wgpu state and surfaces.
|
||||
|
||||
use raw_window_handle::{HasRawDisplayHandle, HasRawWindowHandle};
|
||||
use wgpu::{Device, Instance, Limits, Queue, Surface, SurfaceConfiguration};
|
||||
|
||||
/// Simple render context that maintains wgpu state for rendering the pipeline.
|
||||
pub struct RenderContext {
|
||||
pub instance: Instance,
|
||||
pub device: Device,
|
||||
pub queue: Queue,
|
||||
}
|
||||
|
||||
impl RenderContext {
|
||||
pub async fn new() -> Result<Self, Box<dyn std::error::Error>> {
|
||||
let instance = Instance::new(wgpu::Backends::PRIMARY);
|
||||
let adapter = instance.request_adapter(&Default::default()).await.unwrap();
|
||||
let features = adapter.features();
|
||||
let mut limits = Limits::default();
|
||||
limits.max_storage_buffers_per_shader_stage = 16;
|
||||
let (device, queue) = adapter
|
||||
.request_device(
|
||||
&wgpu::DeviceDescriptor {
|
||||
label: None,
|
||||
features: features
|
||||
& (wgpu::Features::TIMESTAMP_QUERY | wgpu::Features::CLEAR_TEXTURE),
|
||||
limits,
|
||||
},
|
||||
None,
|
||||
)
|
||||
.await?;
|
||||
Ok(Self {
|
||||
instance,
|
||||
device,
|
||||
queue,
|
||||
})
|
||||
}
|
||||
|
||||
/// Creates a new surface for the specified window and dimensions.
|
||||
pub fn create_surface<W>(&self, window: &W, width: u32, height: u32) -> RenderSurface
|
||||
where
|
||||
W: HasRawWindowHandle + HasRawDisplayHandle,
|
||||
{
|
||||
let surface = unsafe { self.instance.create_surface(window) };
|
||||
let format = wgpu::TextureFormat::Bgra8Unorm;
|
||||
let config = wgpu::SurfaceConfiguration {
|
||||
usage: wgpu::TextureUsages::RENDER_ATTACHMENT,
|
||||
format,
|
||||
width,
|
||||
height,
|
||||
present_mode: wgpu::PresentMode::Fifo,
|
||||
alpha_mode: wgpu::CompositeAlphaMode::Auto,
|
||||
};
|
||||
surface.configure(&self.device, &config);
|
||||
RenderSurface { surface, config }
|
||||
}
|
||||
|
||||
/// Resizes the surface to the new dimensions.
|
||||
pub fn resize_surface(&self, surface: &mut RenderSurface, width: u32, height: u32) {
|
||||
surface.config.width = width;
|
||||
surface.config.height = height;
|
||||
surface.surface.configure(&self.device, &surface.config);
|
||||
}
|
||||
}
|
||||
|
||||
/// Combination of surface and its configuration.
|
||||
pub struct RenderSurface {
|
||||
pub surface: Surface,
|
||||
pub config: SurfaceConfiguration,
|
||||
}
|
||||
Loading…
Reference in a new issue