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galister
2025-06-18 01:14:04 +09:00
parent 95f2ae4296
commit f05d3a8251
252 changed files with 24618 additions and 184 deletions
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137
Cargo.lock generated
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@@ -215,15 +215,6 @@ dependencies = [
"num-traits", "num-traits",
] ]
[[package]]
name = "approx"
version = "0.5.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cab112f0a86d568ea0e627cc1d6be74a1e9cd55214684db5561995f6dad897c6"
dependencies = [
"num-traits",
]
[[package]] [[package]]
name = "aquamarine" name = "aquamarine"
version = "0.1.12" version = "0.1.12"
@@ -879,7 +870,7 @@ version = "0.18.0"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1a98d30140e3296250832bbaaff83b27dcd6fa3cc70fb6f1f3e5c9c0023b5317" checksum = "1a98d30140e3296250832bbaaff83b27dcd6fa3cc70fb6f1f3e5c9c0023b5317"
dependencies = [ dependencies = [
"approx 0.4.0", "approx",
"num-traits", "num-traits",
] ]
@@ -1039,12 +1030,6 @@ dependencies = [
"yaml-rust2", "yaml-rust2",
] ]
[[package]]
name = "const-cstr"
version = "0.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ed3d0b5ff30645a68f35ece8cea4556ca14ef8a1651455f789a099a0513532a6"
[[package]] [[package]]
name = "const-random" name = "const-random"
version = "0.1.18" version = "0.1.18"
@@ -1799,18 +1784,6 @@ dependencies = [
"roxmltree 0.20.0", "roxmltree 0.20.0",
] ]
[[package]]
name = "fontconfig-rs"
version = "0.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cb4baadad5111c6820e97fc8bde5077258e6f272b5b38538db4b42e1812f29f3"
dependencies = [
"const-cstr",
"once_cell",
"thiserror 1.0.69",
"yeslogic-fontconfig-sys",
]
[[package]] [[package]]
name = "fontdb" name = "fontdb"
version = "0.16.2" version = "0.16.2"
@@ -1861,28 +1834,6 @@ dependencies = [
"percent-encoding", "percent-encoding",
] ]
[[package]]
name = "freetype-rs"
version = "0.36.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5442dee36ca09604133580dc0553780e867936bb3cbef3275859e889026d2b17"
dependencies = [
"bitflags 2.9.1",
"freetype-sys",
"libc",
]
[[package]]
name = "freetype-sys"
version = "0.20.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0e7edc5b9669349acfda99533e9e0bcf26a51862ab43b08ee7745c55d28eb134"
dependencies = [
"cc",
"libc",
"pkg-config",
]
[[package]] [[package]]
name = "futures" name = "futures"
version = "0.3.31" version = "0.3.31"
@@ -2061,7 +2012,6 @@ version = "0.30.4"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "50a99dbe56b72736564cfa4b85bf9a33079f16ae8b74983ab06af3b1a3696b11" checksum = "50a99dbe56b72736564cfa4b85bf9a33079f16ae8b74983ab06af3b1a3696b11"
dependencies = [ dependencies = [
"approx 0.5.1",
"mint", "mint",
"serde", "serde",
] ]
@@ -4194,6 +4144,40 @@ version = "0.20.0"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6c20b6793b5c2fa6553b250154b78d6d0db37e72700ae35fad9387a46f487c97" checksum = "6c20b6793b5c2fa6553b250154b78d6d0db37e72700ae35fad9387a46f487c97"
[[package]]
name = "rust-embed"
version = "8.7.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "025908b8682a26ba8d12f6f2d66b987584a4a87bc024abc5bbc12553a8cd178a"
dependencies = [
"rust-embed-impl",
"rust-embed-utils",
"walkdir",
]
[[package]]
name = "rust-embed-impl"
version = "8.7.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6065f1a4392b71819ec1ea1df1120673418bf386f50de1d6f54204d836d4349c"
dependencies = [
"proc-macro2",
"quote",
"rust-embed-utils",
"syn 2.0.103",
"walkdir",
]
[[package]]
name = "rust-embed-utils"
version = "8.7.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f6cc0c81648b20b70c491ff8cce00c1c3b223bb8ed2b5d41f0e54c6c4c0a3594"
dependencies = [
"sha2",
"walkdir",
]
[[package]] [[package]]
name = "rust-ini" name = "rust-ini"
version = "0.21.1" version = "0.21.1"
@@ -5089,6 +5073,21 @@ dependencies = [
"winapi", "winapi",
] ]
[[package]]
name = "uidev-vk"
version = "0.1.0"
dependencies = [
"anyhow",
"glam",
"log",
"rust-embed",
"tracing-subscriber",
"vulkano",
"vulkano-shaders",
"wgui",
"winit",
]
[[package]] [[package]]
name = "unicode-bidi" name = "unicode-bidi"
version = "0.3.18" version = "0.3.18"
@@ -5593,7 +5592,6 @@ checksum = "a751b3277700db47d3e574514de2eced5e54dc8a5436a3bf7a0b248b2cee16f3"
[[package]] [[package]]
name = "wgui" name = "wgui"
version = "0.1.0" version = "0.1.0"
source = "git+https://github.com/wlx-team/wgui.git?branch=wip#455fabb31931b888f9b976c6a914c6f4f73b7beb"
dependencies = [ dependencies = [
"anyhow", "anyhow",
"cosmic-text", "cosmic-text",
@@ -6140,6 +6138,22 @@ dependencies = [
"bitflags 2.9.1", "bitflags 2.9.1",
] ]
[[package]]
name = "wlx-capture"
version = "0.5.3"
dependencies = [
"ashpd",
"drm-fourcc",
"idmap",
"libc",
"log",
"pipewire",
"rxscreen",
"smithay-client-toolkit",
"wayland-client",
"wayland-protocols",
]
[[package]] [[package]]
name = "wlx-capture" name = "wlx-capture"
version = "0.5.3" version = "0.5.3"
@@ -6170,8 +6184,6 @@ dependencies = [
"config", "config",
"ctrlc", "ctrlc",
"dbus", "dbus",
"fontconfig-rs",
"freetype-rs",
"futures", "futures",
"glam", "glam",
"idmap", "idmap",
@@ -6192,6 +6204,7 @@ dependencies = [
"regex", "regex",
"rodio", "rodio",
"rosc", "rosc",
"rust-embed",
"serde", "serde",
"serde_json", "serde_json",
"serde_json5", "serde_json5",
@@ -6204,12 +6217,14 @@ dependencies = [
"tracing", "tracing",
"tracing-subscriber", "tracing-subscriber",
"uuid", "uuid",
"vulkano",
"vulkano-shaders",
"wayland-client", "wayland-client",
"wayland-egl", "wayland-egl",
"wayvr_ipc", "wayvr_ipc",
"wgui", "wgui",
"winit", "winit",
"wlx-capture", "wlx-capture 0.5.3 (git+https://github.com/galister/wlx-capture?tag=v0.5.3)",
"xcb", "xcb",
"xdg 3.0.0", "xdg 3.0.0",
"xkbcommon 0.8.0", "xkbcommon 0.8.0",
@@ -6372,18 +6387,6 @@ version = "0.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e01738255b5a16e78bbb83e7fbba0a1e7dd506905cfc53f4622d89015a03fbb5" checksum = "e01738255b5a16e78bbb83e7fbba0a1e7dd506905cfc53f4622d89015a03fbb5"
[[package]]
name = "yeslogic-fontconfig-sys"
version = "3.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f2bbd69036d397ebbff671b1b8e4d918610c181c5a16073b96f984a38d08c386"
dependencies = [
"const-cstr",
"dlib",
"once_cell",
"pkg-config",
]
[[package]] [[package]]
name = "yoke" name = "yoke"
version = "0.8.0" version = "0.8.0"

126
Cargo.toml
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@@ -1,120 +1,12 @@
[profile.release-with-debug] [workspace]
inherits = "release" members = ["wgui", "wgui/uidev-vk", "wlx-overlay-s", "wlx-capture"]
debug = true
[package] [workspace.dependencies]
name = "wlx-overlay-s" anyhow = "1.0.98"
version = "25.4.2" glam = "0.30.3"
edition = "2021" log = "0.4.27"
license = "GPL-3.0-only" vulkano = { version = "0.35.1", default-features = false, features = [
authors = ["galister"] "macros",
description = "Access your Wayland/X11 desktop from Monado/WiVRn/SteamVR. Now with Vulkan!"
repository = "https://github.com/galister/wlx-overlay-s"
keywords = ["linux", "openvr", "openxr", "x11", "wayland", "openvr-overlay", "openxr-overlay"]
categories = ["games"]
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
anyhow = { workspace = true }
ash = "^0.38.0" # must match vulkano
chrono = "0.4.38"
chrono-tz = "0.10.0"
clap = { version = "4.5.6", features = ["derive"] }
config = "0.15.11"
ctrlc = { version = "3.4.4", features = ["termination"] }
dbus = { version = "0.9.7" }
futures = "0.3.30"
glam = { workspace = true, features = ["mint", "serde"] }
idmap = { version = "0.2.21", features = ["serde"] }
idmap-derive = "0.1.2"
input-linux = "0.7.0"
json = { version = "0.12.4", optional = true }
json5 = "0.4.1"
libc = "0.2.155"
log = { workspace = true }
openxr = { git = "https://github.com/Ralith/openxrs", rev = "d0afdd3365bc1e14de28f6a3a21f457e788a702e", features = [
"linked",
"mint",
], optional = true }
ovr_overlay = { features = [
"ovr_input",
"ovr_system",
], git = "https://github.com/galister/ovr_overlay_oyasumi", optional = true }
regex = "1.11.1"
rodio = { version = "0.20.1", default-features = false, features = [
"wav",
"hound",
] } ] }
rosc = { version = "0.11.4", optional = true } vulkano-shaders = "0.35.0"
serde = { version = "1.0.203", features = ["derive", "rc"] }
serde_json = "1.0.117"
serde_yaml = "0.9.34"
smallvec = "1.13.2"
strum = { version = "0.27.1", features = ["derive"] }
sysinfo = { version = "0.35" }
thiserror = "2.0"
wlx-capture = { git = "https://github.com/galister/wlx-capture", tag = "v0.5.3", default-features = false }
libmonado = { version = "1.3.2", optional = true }
winit = { version = "0.30", optional = true }
xdg = "3.0"
log-panics = { version = "2.1.0", features = ["with-backtrace"] }
serde_json5 = "0.2.1"
xkbcommon = { version = "0.8.0" }
xcb = { version = "1.4.0", optional = true, features = [
"as-raw-xcb-connection",
] }
image_dds = { version = "0.7.2", default-features = false, features = [
"ddsfile",
] }
mint = "0.5.9"
tracing-subscriber = { version = "0.3.19", features = ["env-filter"] }
tracing = "0.1.41"
vulkano = { workspace = true }
vulkano-shaders = { workspace = true }
wgui = { path = "../wgui" }
################################
#WayVR-only deps
################################
khronos-egl = { version = "6.0.0", features = ["static"], optional = true }
smithay = { version = "0.5.1", default-features = false, features = [
"renderer_gl",
"backend_egl",
"backend_drm",
"xwayland",
"wayland_frontend",
], optional = true }
uuid = { version = "1.10.0", features = ["v4", "fast-rng"], optional = true }
wayland-client = { version = "0.31.6", optional = true }
wayland-egl = { version = "0.32.4", optional = true }
interprocess = { version = "2.2.2", optional = true }
bytes = { version = "1.9.0", optional = true }
wayvr_ipc = { git = "https://github.com/olekolek1000/wayvr-ipc.git", rev = "a72587d23f3bb8624d9aeb1f13c0a21e65350f51", default-features = false, optional = true }
rust-embed = "8.7.2"
################################
[build-dependencies]
regex = { version = "1.11.1" }
[features]
default = ["openvr", "openxr", "osc", "x11", "wayland", "wayvr"]
openvr = ["dep:ovr_overlay", "dep:json"]
openxr = ["dep:openxr", "dep:libmonado"]
osc = ["dep:rosc"]
x11 = ["dep:xcb", "wlx-capture/xshm", "xkbcommon/x11"]
wayland = ["pipewire", "wlx-capture/wlr", "xkbcommon/wayland"]
pipewire = ["wlx-capture/pipewire"]
uidev = ["dep:winit"]
xcb = ["dep:xcb"]
wayvr = [
"dep:khronos-egl",
"dep:smithay",
"dep:uuid",
"dep:wayland-client",
"dep:wayland-egl",
"dep:interprocess",
"dep:bytes",
"dep:wayvr_ipc",
]
as-raw-xcb-connection = []

8
wgui/.editorconfig Normal file
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@@ -0,0 +1,8 @@
root = true
[*.rs]
indent_style = tab
indent_size = 2
charset = utf-8
trim_trailing_whitespace = false
insert_final_newline = false

2
wgui/.gitignore vendored Normal file
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@@ -0,0 +1,2 @@
target
.vscode

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34
wgui/Cargo.toml Normal file
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@@ -0,0 +1,34 @@
[package]
name = "wgui"
version = "0.1.0"
edition = "2024"
[dependencies]
anyhow = { workspace = true }
cosmic-text = "0.14.2"
etagere = "0.2.15"
glam = { workspace = true }
image = { version = "0.25.6", default-features = false, features = [
"gif",
"jpeg",
"png",
"rayon",
"webp",
] }
log = { workspace = true }
lru = "0.14.0"
resvg = { version = "0.45.1", default-features = false }
roxmltree = "0.20.0"
rustc-hash = "2.1.1"
slotmap = "1.0.7"
smallvec = "1.15.0"
taffy = "0.8.1"
vulkano = { workspace = true }
vulkano-shaders = { workspace = true }
[profile.dev]
opt-level = 0
debug = true
strip = "none"
debug-assertions = true
incremental = true

9
wgui/README.md Normal file
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@@ -0,0 +1,9 @@
<p align="center">
<img alt=" logo" src="./contrib/logo.png"/>
</p>
# wgui
an experimental gui library for wlx-overlay-s and WayVR Dashboard
powered via vulkan

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105
wgui/doc/widgets.md Normal file
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@@ -0,0 +1,105 @@
# Universal widget attributes
`display`: flex | block | grid
`position`: absolute | relative
`flex_grow`: units (3)
`flex_shrink`: units (3)
`gap`: units (42) or percent (42%)
`flex_basis`: units (42) or percent (42%)
`justify_self`: center | end | flex_end | flex_start | start | stretch
`justify_content`: center | end | flex_start | flex_end | space_around | space_between | space_evenly | start | stretch
`flex_wrap`: wrap | no_wrap | wrap_reverse
`flex_direction`: row | column | column_reverse | row_reverse,
`align_items`, `align_self`: baseline | center | end | flex_start | flex_end | start | stretch
`box_sizing`: border_box | content_box
`margin`, `margin_left`, `margin_right`, `margin_top`, `margin_bottom`: units (42) or percent (42%)
`padding`, `padding_left`, `padding_right`, `padding_top`, `padding_bottom`: units (42) or percent (42%)
`overflow_x`, `overflow_y`: hidden | visible | clip | scroll
`min_width`, `min_height`: units (42) or percent (42%)
`max_width`, `max_height`: units (42) or percent (42%)
`width`, `height`: units (42) or percent (42%)
# Widgets
### `div`
The most simple element
#### Parameters
None
---
### `label`
Text element
#### Parameters
`text`: abc
`color`: #FFAABB | #FFAABBCC
`align`: left | right | center | justified | end
`weight`: normal | bold
`size`: _float_
---
### `rectangle`
A styled rectangle
#### Parameters
`text`: abc
`color`: #FFAABB | #FFAABBCC
_1st gradient color_
`color2`: #FFAABB | #FFAABBCC
_2nd gradient color_
`gradient`: horizontal | vertical | radial | none
`round`: _float (0.0 - 1.0)_
`border`: _float_
`border_color`: #FFAABB | #FFAABBCC
---
### `sprite`
Image widget, supports raster and svg vector
#### Parameters
`src`: Internal (assets) image path
`src_ext`: External image path
---

2
wgui/rustfmt.toml Normal file
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@@ -0,0 +1,2 @@
tab_spaces = 2
hard_tabs = true

216
wgui/src/animation.rs Normal file
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@@ -0,0 +1,216 @@
use glam::FloatExt;
use crate::{
event::WidgetCallback,
layout::{WidgetID, WidgetMap},
widget::WidgetObj,
};
pub enum AnimationEasing {
Linear,
InQuad,
OutQuad,
OutBack,
InBack,
}
impl AnimationEasing {
fn interpolate(&self, x: f32) -> f32 {
match self {
AnimationEasing::Linear => x,
AnimationEasing::InQuad => x * x,
AnimationEasing::OutQuad => 1.0 - (1.0 - x) * (1.0 - x),
AnimationEasing::OutBack => {
let a = 1.7;
let b = a + 1.0;
1.0 + b * (x - 1.0).powf(3.0) + a * (x - 1.0).powf(2.0)
}
AnimationEasing::InBack => {
let a = 1.7;
let b = a + 1.0;
b * x.powf(3.0) - a * x.powf(2.0)
}
}
}
}
pub struct CallbackData<'a> {
pub obj: &'a mut dyn WidgetObj,
pub widgets: &'a WidgetMap,
pub widget_id: WidgetID,
pub pos: f32, // 0.0 (start of animation) - 1.0 (end of animation)
pub needs_redraw: bool,
pub dirty_nodes: &'a mut Vec<taffy::NodeId>,
}
impl<'a> WidgetCallback<'a> for CallbackData<'a> {
fn get_widgets(&self) -> &'a WidgetMap {
self.widgets
}
fn mark_redraw(&mut self) {
self.needs_redraw = true;
}
fn mark_dirty(&mut self, node_id: taffy::NodeId) {
self.dirty_nodes.push(node_id);
}
}
pub struct Animation {
target_widget: WidgetID,
animation_id: u32,
ticks_remaining: u32,
ticks_duration: u32,
easing: AnimationEasing,
pos: f32,
pos_prev: f32,
last_tick: bool,
callback: Box<dyn Fn(&mut CallbackData)>,
}
#[derive(Default)]
struct CallResult {
needs_redraw: bool,
}
impl Animation {
pub fn new(
target_widget: WidgetID,
ticks: u32,
easing: AnimationEasing,
callback: Box<dyn Fn(&mut CallbackData)>,
) -> Self {
Animation::new_ex(target_widget, 0, ticks, easing, callback)
}
pub fn new_ex(
target_widget: WidgetID,
animation_id: u32,
ticks: u32,
easing: AnimationEasing,
callback: Box<dyn Fn(&mut CallbackData)>,
) -> Self {
Self {
target_widget,
animation_id,
callback,
easing,
ticks_duration: ticks,
ticks_remaining: ticks,
last_tick: false,
pos: 0.0,
pos_prev: 0.0,
}
}
fn call(
&self,
widgets: &WidgetMap,
dirty_nodes: &mut Vec<taffy::NodeId>,
pos: f32,
) -> CallResult {
let mut res = CallResult::default();
if let Some(widget) = widgets.get(self.target_widget).cloned() {
let mut widget = widget.lock().unwrap();
let data = &mut CallbackData {
widget_id: self.target_widget,
dirty_nodes,
widgets,
obj: widget.obj.as_mut(),
pos,
needs_redraw: false,
};
(self.callback)(data);
if data.needs_redraw {
res.needs_redraw = true;
}
}
res
}
}
#[derive(Default)]
pub struct Animations {
running_animations: Vec<Animation>,
}
impl Animations {
pub fn tick(
&mut self,
widgets: &WidgetMap,
dirty_nodes: &mut Vec<taffy::NodeId>,
needs_redraw: &mut bool,
) {
for anim in &mut self.running_animations {
let x = 1.0 - (anim.ticks_remaining as f32 / anim.ticks_duration as f32);
let pos = if anim.ticks_remaining > 0 {
anim.easing.interpolate(x)
} else {
anim.last_tick = true;
1.0
};
anim.pos_prev = anim.pos;
anim.pos = pos;
let res = anim.call(widgets, dirty_nodes, 1.0);
if anim.last_tick || res.needs_redraw {
*needs_redraw = true;
}
anim.ticks_remaining -= 1;
}
self
.running_animations
.retain(|anim| anim.ticks_remaining > 0);
}
pub fn process(
&mut self,
widgets: &WidgetMap,
dirty_nodes: &mut Vec<taffy::NodeId>,
alpha: f32,
needs_redraw: &mut bool,
) {
for anim in &mut self.running_animations {
let pos = anim.pos_prev.lerp(anim.pos, alpha);
let res = anim.call(widgets, dirty_nodes, pos);
if res.needs_redraw {
*needs_redraw = true;
}
}
}
pub fn add(&mut self, anim: Animation) {
// prevent running two animations at once
self.stop_by_widget(anim.target_widget, Some(anim.animation_id));
self.running_animations.push(anim);
}
pub fn stop_by_widget(&mut self, widget_id: WidgetID, animation_id: Option<u32>) {
self.running_animations.retain(|anim| {
if let Some(animation_id) = &animation_id {
if anim.target_widget == widget_id {
anim.animation_id != *animation_id
} else {
true
}
} else {
anim.target_widget != widget_id
}
});
}
}

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use std::any::Any;
pub trait AnyTrait: 'static {
fn as_any(&self) -> &dyn Any;
fn as_any_mut(&mut self) -> &mut dyn Any;
}
impl<T: 'static> AnyTrait for T {
fn as_any(&self) -> &dyn Any {
self
}
fn as_any_mut(&mut self) -> &mut dyn Any {
self
}
}

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pub trait AssetProvider {
fn load_from_path(&mut self, path: &str) -> anyhow::Result<Vec<u8>>;
}

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use std::sync::Arc;
use glam::Vec2;
use taffy::{AlignItems, JustifyContent, prelude::length};
use crate::{
animation::{Animation, AnimationEasing},
drawing::{self, Color},
event::{EventListener, WidgetCallback},
layout::{Layout, WidgetID},
renderer_vk::text::{FontWeight, TextStyle},
widget::{
rectangle::{Rectangle, RectangleParams},
text::{TextLabel, TextParams},
util::WLength,
},
};
pub struct Params<'a> {
pub text: &'a str,
pub color: drawing::Color,
pub size: Vec2,
pub text_style: TextStyle,
}
impl Default for Params<'_> {
fn default() -> Self {
Self {
text: "Text",
color: drawing::Color::new(1.0, 1.0, 1.0, 1.0),
size: Vec2::new(128.0, 32.0),
text_style: TextStyle::default(),
}
}
}
pub struct Button {
color: drawing::Color,
pub body: WidgetID, // Rectangle
pub text_id: WidgetID, // Text
text_node: taffy::NodeId,
}
impl Button {
pub fn set_text<'a, C>(&self, callback_data: &mut C, text: &str)
where
C: WidgetCallback<'a>,
{
callback_data.call_on_widget(self.text_id, |label: &mut TextLabel| {
label.set_text(text);
});
callback_data.mark_redraw();
callback_data.mark_dirty(self.text_node);
}
}
fn anim_hover_in(button: Arc<Button>, widget_id: WidgetID) -> Animation {
Animation::new(
widget_id,
10,
AnimationEasing::OutQuad,
Box::new(move |data| {
let rect = data.obj.get_as_mut::<Rectangle>();
let brightness = data.pos * 0.5;
rect.params.color.r = button.color.r + brightness;
rect.params.color.g = button.color.g + brightness;
rect.params.color.b = button.color.b + brightness;
rect.params.border_color = Color::new(1.0, 1.0, 1.0, 1.0);
rect.params.border = 1.0 + data.pos;
data.needs_redraw = true;
}),
)
}
fn anim_hover_out(button: Arc<Button>, widget_id: WidgetID) -> Animation {
Animation::new(
widget_id,
15,
AnimationEasing::OutQuad,
Box::new(move |data| {
let rect = data.obj.get_as_mut::<Rectangle>();
let brightness = (1.0 - data.pos) * 0.5;
rect.params.color.r = button.color.r + brightness;
rect.params.color.g = button.color.g + brightness;
rect.params.color.b = button.color.b + brightness;
rect.params.border_color = Color::new(1.0, 1.0, 1.0, 1.0);
rect.params.border = 1.0 + (1.0 - data.pos) * 2.0;
data.needs_redraw = true;
}),
)
}
pub fn construct(
layout: &mut Layout,
parent: WidgetID,
params: Params,
) -> anyhow::Result<Arc<Button>> {
let (rect_id, _) = layout.add_child(
parent,
Rectangle::create(RectangleParams {
color: params.color,
round: WLength::Units(4.0),
..Default::default()
})?,
taffy::Style {
size: taffy::Size {
width: length(params.size.x),
height: length(params.size.y),
},
align_items: Some(AlignItems::Center),
justify_content: Some(JustifyContent::Center),
padding: length(1.0),
..Default::default()
},
)?;
let light_text = (params.color.r + params.color.g + params.color.b) < 1.5;
let (text_id, text_node) = layout.add_child(
rect_id,
TextLabel::create(TextParams {
content: String::from(params.text),
style: TextStyle {
weight: Some(FontWeight::Bold),
color: Some(if light_text {
Color::new(1.0, 1.0, 1.0, 1.0)
} else {
Color::new(0.0, 0.0, 0.0, 1.0)
}),
..params.text_style
},
})?,
taffy::Style {
..Default::default()
},
)?;
let mut widget = layout.widget_states.get(rect_id).unwrap().lock().unwrap();
let button = Arc::new(Button {
body: rect_id,
color: params.color,
text_id,
text_node,
});
// Highlight background on mouse enter
{
let button = button.clone();
widget.add_event_listener(EventListener::MouseEnter(Box::new(move |data| {
data
.animations
.push(anim_hover_in(button.clone(), data.widget_id));
})));
}
// Bring back old color on mouse leave
{
let button = button.clone();
widget.add_event_listener(EventListener::MouseLeave(Box::new(move |data| {
data
.animations
.push(anim_hover_out(button.clone(), data.widget_id));
})));
}
Ok(button)
}

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pub mod button;

200
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use std::{cell::RefCell, rc::Rc};
use cosmic_text::Buffer;
use glam::{Mat4, Vec2};
use taffy::TraversePartialTree;
use crate::{
layout::BoxWidget,
renderer_vk::text::custom_glyph::CustomGlyph,
transform_stack::{self, TransformStack},
widget::{self},
};
use super::{layout::Layout, widget::DrawState};
pub struct ImageHandle {
// to be implemented, will contain pixel data (RGB or RGBA) loaded via "ImageBank" or something by the gui
}
#[derive(Debug, Default, Clone, Copy, PartialEq)]
pub struct Boundary {
pub pos: Vec2,
pub size: Vec2,
}
impl Boundary {
pub fn from_pos_size(pos: Vec2, size: Vec2) -> Self {
Self { pos, size }
}
pub fn construct(transform_stack: &TransformStack) -> Self {
let transform = transform_stack.get();
Self {
pos: Vec2::new(transform.pos.x, transform.pos.y),
size: Vec2::new(transform.dim.x, transform.dim.y),
}
}
}
#[derive(Copy, Clone)]
pub struct Color {
pub r: f32,
pub g: f32,
pub b: f32,
pub a: f32,
}
impl Color {
pub fn new(r: f32, g: f32, b: f32, a: f32) -> Self {
Self { r, g, b, a }
}
}
impl Default for Color {
fn default() -> Self {
// opaque black
Self::new(0.0, 0.0, 0.0, 1.0)
}
}
#[repr(u8)]
#[derive(Default, Clone, Copy)]
pub enum GradientMode {
#[default]
None,
Horizontal,
Vertical,
Radial,
}
#[derive(Default, Clone, Copy)]
pub struct Rectangle {
pub color: Color,
pub color2: Color,
pub gradient: GradientMode,
pub border: f32, // width in pixels
pub border_color: Color,
pub round_units: u8,
}
pub struct RenderPrimitive {
pub(super) boundary: Boundary,
pub(super) transform: Mat4,
pub(super) depth: f32,
pub(super) payload: PrimitivePayload,
}
pub enum PrimitivePayload {
Rectangle(Rectangle),
Text(Rc<RefCell<Buffer>>),
Sprite(Option<CustomGlyph>), //option because we want as_slice
}
fn draw_widget(
layout: &Layout,
state: &mut DrawState,
node_id: taffy::NodeId,
style: &taffy::Style,
widget: &BoxWidget,
parent_transform: &glam::Mat4,
) {
let Ok(l) = layout.tree.layout(node_id) else {
debug_assert!(false);
return;
};
let mut widget_state = widget.lock().unwrap();
let transform = widget_state.data.transform * *parent_transform;
let (shift, info) = match widget::get_scrollbar_info(l) {
Some(info) => (widget_state.get_scroll_shift(&info, l), Some(info)),
None => (Vec2::default(), None),
};
state.transform_stack.push(transform_stack::Transform {
pos: Vec2::new(l.location.x, l.location.y) - shift,
transform,
dim: Vec2::new(l.size.width, l.size.height),
});
let draw_params = widget::DrawParams {
node_id,
taffy_layout: l,
style,
};
widget_state.draw_all(state, &draw_params);
draw_children(layout, state, node_id, &transform);
state.transform_stack.pop();
if let Some(info) = &info {
widget_state.draw_scrollbars(state, &draw_params, info);
}
}
fn draw_children(
layout: &Layout,
state: &mut DrawState,
parent_node_id: taffy::NodeId,
model: &glam::Mat4,
) {
for node_id in layout.tree.child_ids(parent_node_id) {
let Some(widget_id) = layout.tree.get_node_context(node_id).cloned() else {
debug_assert!(false);
continue;
};
let Ok(style) = layout.tree.style(node_id) else {
debug_assert!(false);
continue;
};
let Some(widget) = layout.widget_states.get(widget_id) else {
debug_assert!(false);
continue;
};
state.depth += 0.01;
draw_widget(layout, state, node_id, style, widget, model);
state.depth -= 0.01;
}
}
pub fn draw(layout: &Layout) -> anyhow::Result<Vec<RenderPrimitive>> {
let mut primitives = Vec::<RenderPrimitive>::new();
let mut transform_stack = TransformStack::new();
let model = glam::Mat4::IDENTITY;
let Some(root_widget) = layout.widget_states.get(layout.root_widget) else {
panic!();
};
let Ok(style) = layout.tree.style(layout.root_node) else {
panic!();
};
let mut params = DrawState {
primitives: &mut primitives,
transform_stack: &mut transform_stack,
layout,
depth: 0.0,
};
draw_widget(
layout,
&mut params,
layout.root_node,
style,
root_widget,
&model,
);
Ok(primitives)
}

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use glam::Vec2;
use crate::{
animation,
layout::{WidgetID, WidgetMap},
transform_stack::Transform,
widget::{WidgetData, WidgetObj},
};
// TODO: mouse index
pub struct MouseDownEvent {
pub pos: Vec2,
}
pub struct MouseMotionEvent {
pub pos: Vec2,
}
pub struct MouseUpEvent {
pub pos: Vec2,
}
pub struct MouseWheelEvent {
pub pos: Vec2,
pub shift: Vec2,
}
pub enum Event {
MouseDown(MouseDownEvent),
MouseMotion(MouseMotionEvent),
MouseUp(MouseUpEvent),
MouseWheel(MouseWheelEvent),
}
impl Event {
fn test_transform_pos(&self, transform: &Transform, pos: &Vec2) -> bool {
pos.x >= transform.pos.x
&& pos.x < transform.pos.x + transform.dim.x
&& pos.y >= transform.pos.y
&& pos.y < transform.pos.y + transform.dim.y
}
pub fn test_mouse_within_transform(&self, transform: &Transform) -> bool {
match self {
Event::MouseDown(evt) => self.test_transform_pos(transform, &evt.pos),
Event::MouseMotion(evt) => self.test_transform_pos(transform, &evt.pos),
Event::MouseUp(evt) => self.test_transform_pos(transform, &evt.pos),
Event::MouseWheel(evt) => self.test_transform_pos(transform, &evt.pos),
}
}
}
pub trait WidgetCallback<'a> {
fn call_on_widget<WIDGET, FUNC>(&self, widget_id: WidgetID, func: FUNC)
where
WIDGET: WidgetObj,
FUNC: FnOnce(&mut WIDGET),
{
let Some(widget) = self.get_widgets().get(widget_id) else {
debug_assert!(false);
return;
};
let mut lock = widget.lock().unwrap();
let m = lock.obj.get_as_mut::<WIDGET>();
func(m);
}
fn get_widgets(&self) -> &'a WidgetMap;
fn mark_redraw(&mut self);
fn mark_dirty(&mut self, node_id: taffy::NodeId);
}
pub struct CallbackData<'a> {
pub obj: &'a mut dyn WidgetObj,
pub widget_data: &'a mut WidgetData,
pub animations: &'a mut Vec<animation::Animation>,
pub widgets: &'a WidgetMap,
pub widget_id: WidgetID,
pub node_id: taffy::NodeId,
pub dirty_nodes: &'a mut Vec<taffy::NodeId>,
pub needs_redraw: bool,
}
impl<'a> WidgetCallback<'a> for CallbackData<'a> {
fn get_widgets(&self) -> &'a WidgetMap {
self.widgets
}
fn mark_redraw(&mut self) {
self.needs_redraw = true;
}
fn mark_dirty(&mut self, node_id: taffy::NodeId) {
self.dirty_nodes.push(node_id);
}
}
pub type MouseEnterCallback = Box<dyn Fn(&mut CallbackData)>;
pub type MouseLeaveCallback = Box<dyn Fn(&mut CallbackData)>;
pub type MouseClickCallback = Box<dyn Fn(&mut CallbackData)>;
pub enum EventListener {
MouseEnter(MouseEnterCallback),
MouseLeave(MouseLeaveCallback),
MouseClick(MouseClickCallback),
}

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use std::{marker::PhantomData, sync::Arc};
use vulkano::{
DeviceSize,
buffer::{Buffer, BufferCreateInfo, BufferUsage, Subbuffer},
command_buffer::{
AutoCommandBufferBuilder, CommandBufferExecFuture, CopyBufferToImageInfo, CopyImageInfo,
PrimaryAutoCommandBuffer, PrimaryCommandBufferAbstract, RenderingAttachmentInfo, RenderingInfo,
SubpassContents,
},
device::Queue,
format::Format,
image::{Image, ImageCreateInfo, ImageType, ImageUsage, view::ImageView},
memory::allocator::{AllocationCreateInfo, MemoryTypeFilter},
render_pass::{AttachmentLoadOp, AttachmentStoreOp},
sync::{GpuFuture, future::NowFuture},
};
use super::{WGfx, pass::WGfxPass};
pub type GfxCommandBuffer = WCommandBuffer<CmdBufGfx>;
pub type XferCommandBuffer = WCommandBuffer<CmdBufXfer>;
pub struct CmdBufGfx;
pub struct CmdBufXfer;
pub struct WCommandBuffer<T> {
pub graphics: Arc<WGfx>,
pub queue: Arc<Queue>,
pub command_buffer: AutoCommandBufferBuilder<PrimaryAutoCommandBuffer>,
pub(super) _dummy: PhantomData<T>,
}
impl<T> WCommandBuffer<T> {
pub fn build_and_execute(self) -> anyhow::Result<CommandBufferExecFuture<NowFuture>> {
let queue = self.queue.clone();
Ok(self.command_buffer.build()?.execute(queue)?)
}
pub fn build_and_execute_now(self) -> anyhow::Result<()> {
let mut exec = self.build_and_execute()?;
exec.flush()?;
exec.cleanup_finished();
Ok(())
}
}
impl WCommandBuffer<CmdBufGfx> {
pub fn begin_rendering(&mut self, render_target: Arc<ImageView>) -> anyhow::Result<()> {
self.command_buffer.begin_rendering(RenderingInfo {
contents: SubpassContents::SecondaryCommandBuffers,
color_attachments: vec![Some(RenderingAttachmentInfo {
load_op: AttachmentLoadOp::Clear,
store_op: AttachmentStoreOp::Store,
clear_value: Some([0.0, 0.0, 0.0, 0.0].into()),
..RenderingAttachmentInfo::image_view(render_target)
})],
..Default::default()
})?;
Ok(())
}
pub fn build(self) -> anyhow::Result<Arc<PrimaryAutoCommandBuffer>> {
Ok(self.command_buffer.build()?)
}
pub fn run_ref<T>(&mut self, pass: &WGfxPass<T>) -> anyhow::Result<()>
where
T: Sized,
{
self
.command_buffer
.execute_commands(pass.command_buffer.clone())?;
Ok(())
}
pub fn end_rendering(&mut self) -> anyhow::Result<()> {
self.command_buffer.end_rendering()?;
Ok(())
}
}
impl WCommandBuffer<CmdBufXfer> {
pub fn upload_image(
&mut self,
width: u32,
height: u32,
format: Format,
data: &[u8],
) -> anyhow::Result<Arc<Image>> {
let image = Image::new(
self.graphics.memory_allocator.clone(),
ImageCreateInfo {
image_type: ImageType::Dim2d,
format,
extent: [width, height, 1],
usage: ImageUsage::TRANSFER_DST | ImageUsage::TRANSFER_SRC | ImageUsage::SAMPLED,
..Default::default()
},
AllocationCreateInfo::default(),
)?;
let buffer: Subbuffer<[u8]> = Buffer::new_slice(
self.graphics.memory_allocator.clone(),
BufferCreateInfo {
usage: BufferUsage::TRANSFER_SRC,
..Default::default()
},
AllocationCreateInfo {
memory_type_filter: MemoryTypeFilter::PREFER_HOST | MemoryTypeFilter::HOST_SEQUENTIAL_WRITE,
..Default::default()
},
data.len() as DeviceSize,
)?;
buffer.write()?.copy_from_slice(data);
self
.command_buffer
.copy_buffer_to_image(CopyBufferToImageInfo::buffer_image(buffer, image.clone()))?;
Ok(image)
}
pub fn update_image(
&mut self,
image: Arc<Image>,
data: &[u8],
offset: [u32; 3],
extent: Option<[u32; 3]>,
) -> anyhow::Result<()> {
let buffer: Subbuffer<[u8]> = Buffer::new_slice(
self.graphics.memory_allocator.clone(),
BufferCreateInfo {
usage: BufferUsage::TRANSFER_SRC,
..Default::default()
},
AllocationCreateInfo {
memory_type_filter: MemoryTypeFilter::PREFER_HOST | MemoryTypeFilter::HOST_SEQUENTIAL_WRITE,
..Default::default()
},
data.len() as DeviceSize,
)?;
buffer.write()?.copy_from_slice(data);
let mut copy_info = CopyBufferToImageInfo::buffer_image(buffer, image.clone());
copy_info.regions[0].image_offset = offset;
if let Some(extent) = extent {
copy_info.regions[0].image_extent = extent;
}
self.command_buffer.copy_buffer_to_image(copy_info)?;
Ok(())
}
pub fn copy_image(
&mut self,
src: Arc<Image>,
src_offset: [u32; 3],
dst: Arc<Image>,
dst_offset: [u32; 3],
extent: Option<[u32; 3]>,
) -> anyhow::Result<()> {
let mut copy_info = CopyImageInfo::images(src.clone(), dst.clone());
copy_info.regions[0].src_offset = src_offset;
copy_info.regions[0].dst_offset = dst_offset;
if let Some(extent) = extent {
copy_info.regions[0].extent = extent;
}
self.command_buffer.copy_image(copy_info)?;
Ok(())
}
}

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pub mod cmd;
pub mod pass;
pub mod pipeline;
use std::{marker::PhantomData, slice::Iter, sync::Arc};
use cmd::{GfxCommandBuffer, XferCommandBuffer};
use pipeline::WGfxPipeline;
use vulkano::{
DeviceSize,
buffer::{Buffer, BufferContents, BufferCreateInfo, BufferUsage, IndexBuffer, Subbuffer},
command_buffer::{
AutoCommandBufferBuilder, CommandBufferUsage,
allocator::{StandardCommandBufferAllocator, StandardCommandBufferAllocatorCreateInfo},
},
descriptor_set::allocator::{
StandardDescriptorSetAllocator, StandardDescriptorSetAllocatorCreateInfo,
},
device::{Device, Queue},
format::Format,
image::{Image, ImageCreateInfo, ImageType, ImageUsage, sampler::Filter},
instance::Instance,
memory::{
MemoryPropertyFlags,
allocator::{
AllocationCreateInfo, GenericMemoryAllocatorCreateInfo, MemoryTypeFilter,
StandardMemoryAllocator,
},
},
pipeline::graphics::{
color_blend::{AttachmentBlend, BlendFactor, BlendOp},
input_assembly::PrimitiveTopology,
vertex_input::Vertex,
},
shader::ShaderModule,
};
pub const BLEND_ALPHA: AttachmentBlend = AttachmentBlend {
src_color_blend_factor: BlendFactor::SrcAlpha,
dst_color_blend_factor: BlendFactor::OneMinusSrcAlpha,
color_blend_op: BlendOp::Add,
src_alpha_blend_factor: BlendFactor::One,
dst_alpha_blend_factor: BlendFactor::One,
alpha_blend_op: BlendOp::Max,
};
pub type Vert2Buf = Subbuffer<[Vert2Uv]>;
pub type IndexBuf = IndexBuffer;
#[repr(C)]
#[derive(BufferContents, Vertex, Copy, Clone, Debug)]
pub struct Vert2Uv {
#[format(R32G32_SFLOAT)]
pub in_pos: [f32; 2],
#[format(R32G32_SFLOAT)]
pub in_uv: [f32; 2],
}
pub enum QueueType {
Graphics,
Transfer,
}
#[derive(Clone)]
pub struct WGfx {
pub instance: Arc<Instance>,
pub device: Arc<Device>,
pub queue_gfx: Arc<Queue>,
pub queue_xfer: Arc<Queue>,
pub texture_filter: Filter,
pub surface_format: Format,
pub memory_allocator: Arc<StandardMemoryAllocator>,
pub command_buffer_allocator: Arc<StandardCommandBufferAllocator>,
pub descriptor_set_allocator: Arc<StandardDescriptorSetAllocator>,
}
impl WGfx {
pub fn new_from_raw(
instance: Arc<Instance>,
device: Arc<Device>,
queue_gfx: Arc<Queue>,
queue_xfer: Arc<Queue>,
surface_format: Format,
) -> Arc<Self> {
let memory_allocator = memory_allocator(device.clone());
let command_buffer_allocator = Arc::new(StandardCommandBufferAllocator::new(
device.clone(),
StandardCommandBufferAllocatorCreateInfo {
secondary_buffer_count: 32,
..Default::default()
},
));
let descriptor_set_allocator = Arc::new(StandardDescriptorSetAllocator::new(
device.clone(),
StandardDescriptorSetAllocatorCreateInfo::default(),
));
let quality_filter = if device.enabled_extensions().img_filter_cubic {
Filter::Cubic
} else {
Filter::Linear
};
Arc::new(Self {
instance,
device,
queue_gfx,
queue_xfer,
surface_format,
texture_filter: quality_filter,
memory_allocator,
command_buffer_allocator,
descriptor_set_allocator,
})
}
pub fn empty_buffer<T>(&self, usage: BufferUsage, capacity: u64) -> anyhow::Result<Subbuffer<[T]>>
where
T: BufferContents + Clone,
{
Ok(Buffer::new_slice(
self.memory_allocator.clone(),
BufferCreateInfo {
usage,
..Default::default()
},
AllocationCreateInfo {
memory_type_filter: MemoryTypeFilter::PREFER_DEVICE
| MemoryTypeFilter::HOST_SEQUENTIAL_WRITE,
..Default::default()
},
capacity,
)?)
}
pub fn new_buffer<T>(
&self,
usage: BufferUsage,
contents: Iter<'_, T>,
) -> anyhow::Result<Subbuffer<[T]>>
where
T: BufferContents + Clone,
{
Ok(Buffer::from_iter(
self.memory_allocator.clone(),
BufferCreateInfo {
usage,
..Default::default()
},
AllocationCreateInfo {
memory_type_filter: MemoryTypeFilter::PREFER_DEVICE
| MemoryTypeFilter::HOST_SEQUENTIAL_WRITE,
..Default::default()
},
contents.cloned(),
)?)
}
pub fn new_image(
&self,
width: u32,
height: u32,
format: Format,
usage: ImageUsage,
) -> anyhow::Result<Arc<Image>> {
Ok(Image::new(
self.memory_allocator.clone(),
ImageCreateInfo {
image_type: ImageType::Dim2d,
format,
extent: [width, height, 1],
usage,
..Default::default()
},
AllocationCreateInfo::default(),
)?)
}
pub fn create_pipeline<V>(
self: &Arc<Self>,
vert: Arc<ShaderModule>,
frag: Arc<ShaderModule>,
format: Format,
blend: Option<AttachmentBlend>,
topology: PrimitiveTopology,
instanced: bool,
) -> anyhow::Result<Arc<WGfxPipeline<V>>>
where
V: BufferContents + Vertex,
{
Ok(Arc::new(WGfxPipeline::new_with_vert_input(
self.clone(),
vert,
frag,
format,
blend,
topology,
instanced,
)?))
}
pub fn create_pipeline_procedural(
self: &Arc<Self>,
vert: Arc<ShaderModule>,
frag: Arc<ShaderModule>,
format: Format,
blend: Option<AttachmentBlend>,
topology: PrimitiveTopology,
) -> anyhow::Result<Arc<WGfxPipeline<()>>> {
Ok(Arc::new(WGfxPipeline::new_procedural(
self.clone(),
vert,
frag,
format,
blend,
topology,
)?))
}
pub fn create_gfx_command_buffer(
self: &Arc<Self>,
usage: CommandBufferUsage,
) -> anyhow::Result<GfxCommandBuffer> {
self.create_gfx_command_buffer_with_queue(self.queue_gfx.clone(), usage)
}
pub fn create_gfx_command_buffer_with_queue(
self: &Arc<Self>,
queue: Arc<Queue>,
usage: CommandBufferUsage,
) -> anyhow::Result<GfxCommandBuffer> {
let command_buffer = AutoCommandBufferBuilder::primary(
self.command_buffer_allocator.clone(),
queue.queue_family_index(),
usage,
)?;
Ok(GfxCommandBuffer {
graphics: self.clone(),
queue,
command_buffer,
_dummy: PhantomData,
})
}
pub fn create_xfer_command_buffer(
self: &Arc<Self>,
usage: CommandBufferUsage,
) -> anyhow::Result<XferCommandBuffer> {
self.create_xfer_command_buffer_with_queue(self.queue_gfx.clone(), usage)
}
pub fn create_xfer_command_buffer_with_queue(
self: &Arc<Self>,
queue: Arc<Queue>,
usage: CommandBufferUsage,
) -> anyhow::Result<XferCommandBuffer> {
let command_buffer = AutoCommandBufferBuilder::primary(
self.command_buffer_allocator.clone(),
queue.queue_family_index(),
usage,
)?;
Ok(XferCommandBuffer {
graphics: self.clone(),
queue,
command_buffer,
_dummy: PhantomData,
})
}
}
fn memory_allocator(device: Arc<Device>) -> Arc<StandardMemoryAllocator> {
let props = device.physical_device().memory_properties();
let mut block_sizes = vec![0; props.memory_types.len()];
let mut memory_type_bits = u32::MAX;
for (index, memory_type) in props.memory_types.iter().enumerate() {
const LARGE_HEAP_THRESHOLD: DeviceSize = 1024 * 1024 * 1024;
let heap_size = props.memory_heaps[memory_type.heap_index as usize].size;
block_sizes[index] = if heap_size >= LARGE_HEAP_THRESHOLD {
48 * 1024 * 1024
} else {
24 * 1024 * 1024
};
if memory_type.property_flags.intersects(
MemoryPropertyFlags::LAZILY_ALLOCATED
| MemoryPropertyFlags::PROTECTED
| MemoryPropertyFlags::DEVICE_COHERENT
| MemoryPropertyFlags::RDMA_CAPABLE,
) {
// VUID-VkMemoryAllocateInfo-memoryTypeIndex-01872
// VUID-vkAllocateMemory-deviceCoherentMemory-02790
// Lazily allocated memory would just cause problems for suballocation in general.
memory_type_bits &= !(1 << index);
}
}
let create_info = GenericMemoryAllocatorCreateInfo {
block_sizes: &block_sizes,
memory_type_bits,
..Default::default()
};
Arc::new(StandardMemoryAllocator::new(device, create_info))
}

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use std::{marker::PhantomData, ops::Range, sync::Arc};
use smallvec::smallvec;
use vulkano::{
buffer::{BufferContents, IndexBuffer, Subbuffer},
command_buffer::{
AutoCommandBufferBuilder, CommandBufferInheritanceInfo, CommandBufferInheritanceRenderPassType,
CommandBufferInheritanceRenderingInfo, CommandBufferUsage, SecondaryAutoCommandBuffer,
},
descriptor_set::DescriptorSet,
pipeline::{
Pipeline, PipelineBindPoint,
graphics::{vertex_input::Vertex, viewport::Viewport},
},
};
use super::pipeline::WGfxPipeline;
pub struct WGfxPass<V> {
pub command_buffer: Arc<SecondaryAutoCommandBuffer>,
_dummy: PhantomData<V>,
}
impl WGfxPass<()> {
pub(super) fn new_procedural(
pipeline: Arc<WGfxPipeline<()>>,
dimensions: [f32; 2],
vertices: Range<u32>,
instances: Range<u32>,
descriptor_sets: Vec<Arc<DescriptorSet>>,
) -> anyhow::Result<Self> {
let viewport = Viewport {
offset: [0.0, 0.0],
extent: dimensions,
depth_range: 0.0..=1.0,
};
let pipeline_inner = pipeline.inner();
let mut command_buffer = AutoCommandBufferBuilder::secondary(
pipeline.graphics.command_buffer_allocator.clone(),
pipeline.graphics.queue_gfx.queue_family_index(),
CommandBufferUsage::MultipleSubmit,
CommandBufferInheritanceInfo {
render_pass: Some(CommandBufferInheritanceRenderPassType::BeginRendering(
CommandBufferInheritanceRenderingInfo {
color_attachment_formats: vec![Some(pipeline.format)],
..Default::default()
},
)),
..Default::default()
},
)?;
unsafe {
command_buffer
.set_viewport(0, smallvec![viewport])?
.bind_pipeline_graphics(pipeline_inner)?
.bind_descriptor_sets(
PipelineBindPoint::Graphics,
pipeline.inner().layout().clone(),
0,
descriptor_sets,
)?
.draw(
vertices.end - vertices.start,
instances.end - instances.start,
vertices.start,
instances.start,
)?
};
Ok(Self {
command_buffer: command_buffer.build()?,
_dummy: PhantomData,
})
}
}
impl<V> WGfxPass<V>
where
V: BufferContents + Vertex,
{
pub(super) fn new_indexed(
pipeline: Arc<WGfxPipeline<V>>,
dimensions: [f32; 2],
vertex_buffer: Subbuffer<[V]>,
index_buffer: IndexBuffer,
descriptor_sets: Vec<Arc<DescriptorSet>>,
) -> anyhow::Result<Self> {
let viewport = Viewport {
offset: [0.0, 0.0],
extent: dimensions,
depth_range: 0.0..=1.0,
};
let pipeline_inner = pipeline.inner();
let mut command_buffer = AutoCommandBufferBuilder::secondary(
pipeline.graphics.command_buffer_allocator.clone(),
pipeline.graphics.queue_gfx.queue_family_index(),
CommandBufferUsage::MultipleSubmit,
CommandBufferInheritanceInfo {
render_pass: Some(CommandBufferInheritanceRenderPassType::BeginRendering(
CommandBufferInheritanceRenderingInfo {
color_attachment_formats: vec![Some(pipeline.format)],
..Default::default()
},
)),
..Default::default()
},
)?;
unsafe {
command_buffer
.set_viewport(0, smallvec![viewport])?
.bind_pipeline_graphics(pipeline_inner)?
.bind_descriptor_sets(
PipelineBindPoint::Graphics,
pipeline.inner().layout().clone(),
0,
descriptor_sets,
)?
.bind_vertex_buffers(0, vertex_buffer)?
.bind_index_buffer(index_buffer.clone())?
.draw_indexed(index_buffer.len() as u32, 1, 0, 0, 0)?
};
Ok(Self {
command_buffer: command_buffer.build()?,
_dummy: PhantomData,
})
}
pub(super) fn new_instanced(
pipeline: Arc<WGfxPipeline<V>>,
dimensions: [f32; 2],
vertex_buffer: Subbuffer<[V]>,
vertices: Range<u32>,
instances: Range<u32>,
descriptor_sets: Vec<Arc<DescriptorSet>>,
) -> anyhow::Result<Self> {
let viewport = Viewport {
offset: [0.0, 0.0],
extent: dimensions,
depth_range: 0.0..=1.0,
};
let pipeline_inner = pipeline.inner();
let mut command_buffer = AutoCommandBufferBuilder::secondary(
pipeline.graphics.command_buffer_allocator.clone(),
pipeline.graphics.queue_gfx.queue_family_index(),
CommandBufferUsage::MultipleSubmit,
CommandBufferInheritanceInfo {
render_pass: Some(CommandBufferInheritanceRenderPassType::BeginRendering(
CommandBufferInheritanceRenderingInfo {
color_attachment_formats: vec![Some(pipeline.format)],
..Default::default()
},
)),
..Default::default()
},
)?;
unsafe {
command_buffer
.set_viewport(0, smallvec![viewport])?
.bind_pipeline_graphics(pipeline_inner)?
.bind_descriptor_sets(
PipelineBindPoint::Graphics,
pipeline.inner().layout().clone(),
0,
descriptor_sets,
)?
.bind_vertex_buffers(0, vertex_buffer)?
.draw(
vertices.end - vertices.start,
instances.end - instances.start,
vertices.start,
instances.start,
)?
};
Ok(Self {
command_buffer: command_buffer.build()?,
_dummy: PhantomData,
})
}
}

286
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use std::{marker::PhantomData, ops::Range, sync::Arc};
use smallvec::smallvec;
use vulkano::{
buffer::{
BufferContents, BufferUsage, IndexBuffer, Subbuffer,
allocator::{SubbufferAllocator, SubbufferAllocatorCreateInfo},
},
descriptor_set::{DescriptorSet, WriteDescriptorSet},
format::Format,
image::{
sampler::{Filter, Sampler, SamplerAddressMode, SamplerCreateInfo},
view::ImageView,
},
memory::allocator::MemoryTypeFilter,
pipeline::{
DynamicState, GraphicsPipeline, Pipeline, PipelineLayout,
graphics::{
GraphicsPipelineCreateInfo,
color_blend::{AttachmentBlend, ColorBlendAttachmentState, ColorBlendState},
input_assembly::{InputAssemblyState, PrimitiveTopology},
multisample::MultisampleState,
rasterization::RasterizationState,
subpass::PipelineRenderingCreateInfo,
vertex_input::{Vertex, VertexDefinition, VertexInputState},
viewport::ViewportState,
},
layout::PipelineDescriptorSetLayoutCreateInfo,
},
shader::{EntryPoint, ShaderModule},
};
use super::{WGfx, pass::WGfxPass};
pub struct WGfxPipeline<V> {
pub graphics: Arc<WGfx>,
pub pipeline: Arc<GraphicsPipeline>,
pub format: Format,
_dummy: PhantomData<V>,
}
impl<V> WGfxPipeline<V>
where
V: Sized,
{
fn new_from_stages(
graphics: Arc<WGfx>,
format: Format,
blend: Option<AttachmentBlend>,
topology: PrimitiveTopology,
vert_entry_point: EntryPoint,
frag_entry_point: EntryPoint,
vertex_input_state: Option<VertexInputState>,
) -> anyhow::Result<Self> {
let stages = smallvec![
vulkano::pipeline::PipelineShaderStageCreateInfo::new(vert_entry_point),
vulkano::pipeline::PipelineShaderStageCreateInfo::new(frag_entry_point),
];
let layout = PipelineLayout::new(
graphics.device.clone(),
PipelineDescriptorSetLayoutCreateInfo::from_stages(&stages)
.into_pipeline_layout_create_info(graphics.device.clone())?,
)?;
let subpass = PipelineRenderingCreateInfo {
color_attachment_formats: vec![Some(format)],
..Default::default()
};
let pipeline = GraphicsPipeline::new(
graphics.device.clone(),
None,
GraphicsPipelineCreateInfo {
stages,
vertex_input_state,
input_assembly_state: Some(InputAssemblyState {
topology,
..InputAssemblyState::default()
}),
viewport_state: Some(ViewportState::default()),
rasterization_state: Some(RasterizationState {
cull_mode: vulkano::pipeline::graphics::rasterization::CullMode::None,
..RasterizationState::default()
}),
multisample_state: Some(MultisampleState::default()),
color_blend_state: Some(ColorBlendState {
attachments: vec![ColorBlendAttachmentState {
blend,
..Default::default()
}],
..Default::default()
}),
dynamic_state: std::iter::once(DynamicState::Viewport).collect(),
subpass: Some(subpass.into()),
..GraphicsPipelineCreateInfo::layout(layout)
},
)?;
Ok(Self {
graphics,
pipeline,
format,
_dummy: PhantomData,
})
}
pub fn inner(&self) -> Arc<GraphicsPipeline> {
self.pipeline.clone()
}
pub fn uniform_sampler(
&self,
set: usize,
texture: Arc<ImageView>,
filter: Filter,
) -> anyhow::Result<Arc<DescriptorSet>> {
let sampler = Sampler::new(
self.graphics.device.clone(),
SamplerCreateInfo {
mag_filter: filter,
min_filter: filter,
address_mode: [SamplerAddressMode::Repeat; 3],
..Default::default()
},
)?;
let layout = self.pipeline.layout().set_layouts().get(set).unwrap(); // want panic
Ok(DescriptorSet::new(
self.graphics.descriptor_set_allocator.clone(),
layout.clone(),
[WriteDescriptorSet::image_view_sampler(0, texture, sampler)],
[],
)?)
}
// uniform or storage buffer
pub fn buffer<T>(&self, set: usize, buffer: Subbuffer<[T]>) -> anyhow::Result<Arc<DescriptorSet>>
where
T: BufferContents + Copy,
{
let layout = self.pipeline.layout().set_layouts().get(set).unwrap(); // want panic
Ok(DescriptorSet::new(
self.graphics.descriptor_set_allocator.clone(),
layout.clone(),
[WriteDescriptorSet::buffer(0, buffer)],
[],
)?)
}
pub fn uniform_buffer_upload<T>(
&self,
set: usize,
data: Vec<T>,
) -> anyhow::Result<Arc<DescriptorSet>>
where
T: BufferContents + Copy,
{
let buf = SubbufferAllocator::new(
self.graphics.memory_allocator.clone(),
SubbufferAllocatorCreateInfo {
buffer_usage: BufferUsage::UNIFORM_BUFFER,
memory_type_filter: MemoryTypeFilter::PREFER_DEVICE
| MemoryTypeFilter::HOST_SEQUENTIAL_WRITE,
..Default::default()
},
);
let uniform_buffer_subbuffer = {
let subbuffer = buf.allocate_slice(data.len() as _)?;
subbuffer.write()?.copy_from_slice(data.as_slice());
subbuffer
};
self.buffer(set, uniform_buffer_subbuffer)
}
}
impl WGfxPipeline<()> {
pub(super) fn new_procedural(
graphics: Arc<WGfx>,
vert: Arc<ShaderModule>,
frag: Arc<ShaderModule>,
format: Format,
blend: Option<AttachmentBlend>,
topology: PrimitiveTopology,
) -> anyhow::Result<Self> {
let vert_entry_point = vert.entry_point("main").unwrap(); // want panic
let frag_entry_point = frag.entry_point("main").unwrap(); // want panic
WGfxPipeline::new_from_stages(
graphics,
format,
blend,
topology,
vert_entry_point,
frag_entry_point,
None,
)
}
pub fn create_pass_procedural(
self: &Arc<Self>,
dimensions: [f32; 2],
vertices: Range<u32>,
instances: Range<u32>,
descriptor_sets: Vec<Arc<DescriptorSet>>,
) -> anyhow::Result<WGfxPass<()>> {
WGfxPass::new_procedural(
self.clone(),
dimensions,
vertices,
instances,
descriptor_sets,
)
}
}
impl<V> WGfxPipeline<V>
where
V: BufferContents + Vertex,
{
pub(super) fn new_with_vert_input(
graphics: Arc<WGfx>,
vert: Arc<ShaderModule>,
frag: Arc<ShaderModule>,
format: Format,
blend: Option<AttachmentBlend>,
topology: PrimitiveTopology,
instanced: bool,
) -> anyhow::Result<Self> {
let vert_entry_point = vert.entry_point("main").unwrap(); // want panic
let frag_entry_point = frag.entry_point("main").unwrap(); // want panic
let vertex_input_state = Some(if instanced {
V::per_instance().definition(&vert_entry_point)?
} else {
V::per_vertex().definition(&vert_entry_point)?
});
WGfxPipeline::new_from_stages(
graphics,
format,
blend,
topology,
vert_entry_point,
frag_entry_point,
vertex_input_state,
)
}
pub fn create_pass(
self: &Arc<Self>,
dimensions: [f32; 2],
vertex_buffer: Subbuffer<[V]>,
vertices: Range<u32>,
instances: Range<u32>,
descriptor_sets: Vec<Arc<DescriptorSet>>,
) -> anyhow::Result<WGfxPass<V>> {
WGfxPass::new_instanced(
self.clone(),
dimensions,
vertex_buffer,
vertices,
instances,
descriptor_sets,
)
}
pub fn create_pass_indexed(
self: &Arc<Self>,
dimensions: [f32; 2],
vertex_buffer: Subbuffer<[V]>,
index_buffer: IndexBuffer,
descriptor_sets: Vec<Arc<DescriptorSet>>,
) -> anyhow::Result<WGfxPass<V>> {
WGfxPass::new_indexed(
self.clone(),
dimensions,
vertex_buffer,
index_buffer,
descriptor_sets,
)
}
}

319
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use std::{
collections::HashMap,
sync::{Arc, Mutex},
};
use crate::{
animation::{self, Animations},
assets::AssetProvider,
event::{self, EventListener},
transform_stack::{Transform, TransformStack},
widget::{self, EventParams, WidgetState, div::Div},
};
use glam::Vec2;
use slotmap::HopSlotMap;
use taffy::{TaffyTree, TraversePartialTree};
pub type WidgetID = slotmap::DefaultKey;
pub type BoxWidget = Arc<Mutex<WidgetState>>;
pub type WidgetMap = HopSlotMap<slotmap::DefaultKey, BoxWidget>;
struct PushEventState<'a> {
pub needs_redraw: bool,
pub animations: &'a mut Vec<animation::Animation>,
pub transform_stack: &'a mut TransformStack,
}
pub struct Layout {
pub tree: TaffyTree<WidgetID>,
pub assets: Box<dyn AssetProvider>,
pub widget_states: WidgetMap,
pub widget_node_map: HashMap<WidgetID, taffy::NodeId>,
pub root_widget: WidgetID,
pub root_node: taffy::NodeId,
pub prev_size: Vec2,
pub needs_redraw: bool,
pub animations: Animations,
}
fn add_child_internal(
tree: &mut taffy::TaffyTree<WidgetID>,
widget_node_map: &mut HashMap<WidgetID, taffy::NodeId>,
vec: &mut WidgetMap,
parent_node: Option<taffy::NodeId>,
widget: WidgetState,
style: taffy::Style,
) -> anyhow::Result<(WidgetID, taffy::NodeId)> {
#[allow(clippy::arc_with_non_send_sync)]
let child_id = vec.insert(Arc::new(Mutex::new(widget)));
let child_node = tree.new_leaf_with_context(style, child_id)?;
if let Some(parent_node) = parent_node {
tree.add_child(parent_node, child_node)?;
}
widget_node_map.insert(child_id, child_node);
Ok((child_id, child_node))
}
impl Layout {
pub fn add_child(
&mut self,
parent_widget_id: WidgetID,
widget: WidgetState,
style: taffy::Style,
) -> anyhow::Result<(WidgetID, taffy::NodeId)> {
let Some(parent_node) = self.widget_node_map.get(&parent_widget_id).cloned() else {
anyhow::bail!("invalid parent widget");
};
self.needs_redraw = true;
add_child_internal(
&mut self.tree,
&mut self.widget_node_map,
&mut self.widget_states,
Some(parent_node),
widget,
style,
)
}
fn push_event_children(
&self,
parent_node_id: taffy::NodeId,
state: &mut PushEventState,
event: &event::Event,
dirty_nodes: &mut Vec<taffy::NodeId>,
) -> anyhow::Result<()> {
for child_id in self.tree.child_ids(parent_node_id) {
self.push_event_widget(state, child_id, event, dirty_nodes)?;
}
Ok(())
}
fn push_event_widget(
&self,
state: &mut PushEventState,
node_id: taffy::NodeId,
event: &event::Event,
dirty_nodes: &mut Vec<taffy::NodeId>,
) -> anyhow::Result<()> {
let l = self.tree.layout(node_id)?;
let Some(widget_id) = self.tree.get_node_context(node_id).cloned() else {
anyhow::bail!("invalid widget ID");
};
let style = self.tree.style(node_id)?;
let Some(widget) = self.widget_states.get(widget_id) else {
debug_assert!(false);
anyhow::bail!("invalid widget");
};
let mut widget = widget.lock().unwrap();
let transform = Transform {
pos: Vec2::new(l.location.x, l.location.y),
dim: Vec2::new(l.size.width, l.size.height),
transform: glam::Mat4::IDENTITY, // TODO: event transformations? Not needed for now
};
state.transform_stack.push(transform);
let mut iter_children = true;
match widget.process_event(
widget_id,
node_id,
event,
&mut EventParams {
transform_stack: state.transform_stack,
widgets: &self.widget_states,
tree: &self.tree,
animations: state.animations,
needs_redraw: &mut state.needs_redraw,
node_id,
style,
taffy_layout: l,
dirty_nodes,
},
) {
widget::EventResult::Pass => {
// go on
}
widget::EventResult::Consumed => {
iter_children = false;
}
widget::EventResult::Outside => {
iter_children = false;
}
}
drop(widget); // free mutex
if iter_children {
self.push_event_children(node_id, state, event, dirty_nodes)?;
}
state.transform_stack.pop();
Ok(())
}
pub fn check_toggle_needs_redraw(&mut self) -> bool {
if self.needs_redraw {
self.needs_redraw = false;
true
} else {
false
}
}
pub fn push_event(&mut self, event: &event::Event) -> anyhow::Result<()> {
let mut transform_stack = TransformStack::new();
let mut animations_to_add = Vec::<animation::Animation>::new();
let mut dirty_nodes = Vec::new();
let mut state = PushEventState {
needs_redraw: false,
transform_stack: &mut transform_stack,
animations: &mut animations_to_add,
};
self.push_event_widget(&mut state, self.root_node, event, &mut dirty_nodes)?;
for node in dirty_nodes {
self.tree.mark_dirty(node)?;
}
if state.needs_redraw {
self.needs_redraw = true;
}
if !animations_to_add.is_empty() {
self.needs_redraw = true;
for anim in animations_to_add {
self.animations.add(anim);
}
}
Ok(())
}
pub fn new(assets: Box<dyn AssetProvider>) -> anyhow::Result<Self> {
let mut tree = TaffyTree::new();
let mut widget_node_map = HashMap::new();
let mut widget_states = HopSlotMap::new();
let (root_widget, root_node) = add_child_internal(
&mut tree,
&mut widget_node_map,
&mut widget_states,
None, // no parent
Div::create()?,
taffy::Style {
size: taffy::Size::percent(1.0),
..Default::default()
},
)?;
Ok(Self {
tree,
prev_size: Vec2::default(),
root_node,
root_widget,
widget_node_map,
widget_states,
needs_redraw: true,
animations: Animations::default(),
assets,
})
}
pub fn update(&mut self, size: Vec2, timestep_alpha: f32) -> anyhow::Result<()> {
let mut dirty_nodes = Vec::new();
self.animations.process(
&self.widget_states,
&mut dirty_nodes,
timestep_alpha,
&mut self.needs_redraw,
);
for node in dirty_nodes {
self.tree.mark_dirty(node)?;
}
if self.tree.dirty(self.root_node)? || self.prev_size != size {
self.needs_redraw = true;
println!("re-computing layout, size {}x{}", size.x, size.y);
self.prev_size = size;
self.tree.compute_layout_with_measure(
self.root_node,
taffy::Size {
width: taffy::AvailableSpace::Definite(size.x),
height: taffy::AvailableSpace::Definite(size.y),
},
|known_dimensions, available_space, _node_id, node_context, _style| {
if let taffy::Size {
width: Some(width),
height: Some(height),
} = known_dimensions
{
return taffy::Size { width, height };
}
match node_context {
None => taffy::Size::ZERO,
Some(h) => {
if let Some(w) = self.widget_states.get(*h) {
w.lock()
.unwrap()
.obj
.measure(known_dimensions, available_space)
} else {
taffy::Size::ZERO
}
}
}
},
)?;
}
Ok(())
}
pub fn tick(&mut self) -> anyhow::Result<()> {
let mut dirty_nodes = Vec::new();
self.animations.tick(
&self.widget_states,
&mut dirty_nodes,
&mut self.needs_redraw,
);
for node in dirty_nodes {
self.tree.mark_dirty(node)?;
}
Ok(())
}
// helper function
pub fn add_event_listener(&self, widget_id: WidgetID, listener: EventListener) {
let Some(widget) = self.widget_states.get(widget_id) else {
debug_assert!(false);
return;
};
widget.lock().unwrap().add_event_listener(listener);
}
}

16
wgui/src/lib.rs Normal file
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pub mod animation;
pub mod any;
pub mod assets;
pub mod components;
pub mod drawing;
pub mod event;
pub mod gfx;
pub mod layout;
pub mod parser;
pub mod renderer_vk;
pub mod transform_stack;
pub mod widget;
// re-exported libs
pub use cosmic_text;
pub use taffy;

816
wgui/src/parser.rs Normal file
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use std::{
collections::HashMap,
path::{Path, PathBuf},
rc::Rc,
};
use taffy::{
AlignContent, AlignItems, AlignSelf, BoxSizing, Display, FlexDirection, FlexWrap, JustifyContent,
JustifySelf, Overflow,
};
use crate::{
drawing::{self, GradientMode},
layout::{Layout, WidgetID},
renderer_vk::text::{
FontWeight, HorizontalAlign,
custom_glyph::{CustomGlyphContent, CustomGlyphData},
},
widget::{
div::Div,
rectangle::{Rectangle, RectangleParams},
sprite::{SpriteBox, SpriteBoxParams},
text::{TextLabel, TextParams},
util::WLength,
},
};
type VarMap = HashMap<Rc<str>, Rc<str>>;
#[derive(Default)]
pub struct ParserState {
pub ids: HashMap<Rc<str>, WidgetID>,
pub var_map: VarMap,
}
impl ParserState {
pub fn require_by_id(&self, id: &str) -> anyhow::Result<WidgetID> {
match self.ids.get(id) {
Some(id) => Ok(*id),
None => anyhow::bail!("Widget by ID \"{}\" doesn't exist", id),
}
}
}
struct ParserContext<'a> {
layout: &'a mut Layout,
state: &'a mut ParserState,
}
struct ParserFile<'a> {
path: PathBuf,
ctx: &'a mut ParserContext<'a>,
}
// Parses a color from a HTML hex string
pub fn parse_color_hex(html_hex: &str) -> Option<drawing::Color> {
if html_hex.len() == 7 {
if let (Ok(r), Ok(g), Ok(b)) = (
u8::from_str_radix(&html_hex[1..3], 16),
u8::from_str_radix(&html_hex[3..5], 16),
u8::from_str_radix(&html_hex[5..7], 16),
) {
return Some(drawing::Color::new(
f32::from(r) / 255.,
f32::from(g) / 255.,
f32::from(b) / 255.,
1.,
));
}
} else if html_hex.len() == 9 {
if let (Ok(r), Ok(g), Ok(b), Ok(a)) = (
u8::from_str_radix(&html_hex[1..3], 16),
u8::from_str_radix(&html_hex[3..5], 16),
u8::from_str_radix(&html_hex[5..7], 16),
u8::from_str_radix(&html_hex[7..9], 16),
) {
return Some(drawing::Color::new(
f32::from(r) / 255.,
f32::from(g) / 255.,
f32::from(b) / 255.,
f32::from(a) / 255.,
));
}
}
log::warn!("failed to parse color \"{}\"", html_hex);
None
}
fn get_tag_by_name<'a>(
node: roxmltree::Node<'a, 'a>,
name: &str,
) -> Option<roxmltree::Node<'a, 'a>> {
node
.children()
.find(|&child| child.tag_name().name() == name)
}
fn require_tag_by_name<'a>(
node: roxmltree::Node<'a, 'a>,
name: &str,
) -> anyhow::Result<roxmltree::Node<'a, 'a>> {
get_tag_by_name(node, name).ok_or_else(|| anyhow::anyhow!("Tag \"{}\" not found", name))
}
fn print_invalid_attrib(key: &str, value: &str) {
log::warn!("Invalid value \"{}\" in attribute \"{}\"", value, key);
}
fn print_missing_attrib(tag_name: &str, attr: &str) {
log::warn!("Missing attribute {} in tag <{}>", attr, tag_name);
}
fn print_invalid_value(value: &str) {
log::warn!("Invalid value \"{}\"", value);
}
fn parse_val(value: &Rc<str>) -> Option<f32> {
let Ok(val) = value.parse::<f32>() else {
print_invalid_value(value);
return None;
};
Some(val)
}
fn is_percent(value: &str) -> bool {
value.ends_with("%")
}
fn parse_percent(value: &str) -> Option<f32> {
let Some(val_str) = value.split("%").next() else {
print_invalid_value(value);
return None;
};
let Ok(val) = val_str.parse::<f32>() else {
print_invalid_value(value);
return None;
};
Some(val / 100.0)
}
fn parse_f32(value: &str) -> Option<f32> {
value.parse::<f32>().ok()
}
fn parse_size_unit<T>(value: &str) -> Option<T>
where
T: taffy::prelude::FromPercent + taffy::prelude::FromLength,
{
if is_percent(value) {
Some(taffy::prelude::percent(parse_percent(value)?))
} else {
Some(taffy::prelude::length(parse_f32(value)?))
}
}
fn style_from_node<'a>(file: &mut ParserFile, node: roxmltree::Node<'a, 'a>) -> taffy::Style {
let mut style = taffy::Style {
..Default::default()
};
for (key, value) in iter_attribs(&mut file.ctx.state.var_map, &node) {
match &*key {
"display" => match &*value {
"flex" => style.display = Display::Flex,
"block" => style.display = Display::Block,
"grid" => style.display = Display::Grid,
_ => {
print_invalid_attrib(&key, &value);
}
},
"margin_left" => {
if let Some(dim) = parse_size_unit(&value) {
style.margin.left = dim;
}
}
"margin_right" => {
if let Some(dim) = parse_size_unit(&value) {
style.margin.right = dim;
}
}
"margin_top" => {
if let Some(dim) = parse_size_unit(&value) {
style.margin.top = dim;
}
}
"margin_bottom" => {
if let Some(dim) = parse_size_unit(&value) {
style.margin.bottom = dim;
}
}
"padding_left" => {
if let Some(dim) = parse_size_unit(&value) {
style.padding.left = dim;
}
}
"padding_right" => {
if let Some(dim) = parse_size_unit(&value) {
style.padding.right = dim;
}
}
"padding_top" => {
if let Some(dim) = parse_size_unit(&value) {
style.padding.top = dim;
}
}
"padding_bottom" => {
if let Some(dim) = parse_size_unit(&value) {
style.padding.bottom = dim;
}
}
"margin" => {
if let Some(dim) = parse_size_unit(&value) {
style.margin.left = dim;
style.margin.right = dim;
style.margin.top = dim;
style.margin.bottom = dim;
}
}
"padding" => {
if let Some(dim) = parse_size_unit(&value) {
style.padding.left = dim;
style.padding.right = dim;
style.padding.top = dim;
style.padding.bottom = dim;
}
}
"overflow_x" => match &*value {
"hidden" => style.overflow.x = Overflow::Hidden,
"visible" => style.overflow.x = Overflow::Visible,
"clip" => style.overflow.x = Overflow::Clip,
"scroll" => style.overflow.x = Overflow::Scroll,
_ => {
print_invalid_attrib(&key, &value);
}
},
"overflow_y" => match &*value {
"hidden" => style.overflow.y = Overflow::Hidden,
"visible" => style.overflow.y = Overflow::Visible,
"clip" => style.overflow.y = Overflow::Clip,
"scroll" => style.overflow.y = Overflow::Scroll,
_ => {
print_invalid_attrib(&key, &value);
}
},
"min_width" => {
if let Some(dim) = parse_size_unit(&value) {
style.min_size.width = dim;
}
}
"min_height" => {
if let Some(dim) = parse_size_unit(&value) {
style.min_size.height = dim;
}
}
"max_width" => {
if let Some(dim) = parse_size_unit(&value) {
style.max_size.width = dim;
}
}
"max_height" => {
if let Some(dim) = parse_size_unit(&value) {
style.max_size.height = dim;
}
}
"width" => {
if let Some(dim) = parse_size_unit(&value) {
style.size.width = dim;
}
}
"height" => {
if let Some(dim) = parse_size_unit(&value) {
style.size.height = dim;
}
}
"gap" => {
if let Some(val) = parse_size_unit(&value) {
style.gap = val;
}
}
"flex_basis" => {
if let Some(val) = parse_size_unit(&value) {
style.flex_basis = val;
}
}
"flex_grow" => {
if let Some(val) = parse_val(&value) {
style.flex_grow = val;
}
}
"flex_shrink" => {
if let Some(val) = parse_val(&value) {
style.flex_shrink = val;
}
}
"position" => match &*value {
"absolute" => style.position = taffy::Position::Absolute,
"relative" => style.position = taffy::Position::Relative,
_ => {
print_invalid_attrib(&key, &value);
}
},
"box_sizing" => match &*value {
"border_box" => style.box_sizing = BoxSizing::BorderBox,
"content_box" => style.box_sizing = BoxSizing::ContentBox,
_ => {
print_invalid_attrib(&key, &value);
}
},
"align_self" => match &*value {
"baseline" => style.align_self = Some(AlignSelf::Baseline),
"center" => style.align_self = Some(AlignSelf::Center),
"end" => style.align_self = Some(AlignSelf::End),
"flex_end" => style.align_self = Some(AlignSelf::FlexEnd),
"flex_start" => style.align_self = Some(AlignSelf::FlexStart),
"start" => style.align_self = Some(AlignSelf::Start),
"stretch" => style.align_self = Some(AlignSelf::Stretch),
_ => {
print_invalid_attrib(&key, &value);
}
},
"justify_self" => match &*value {
"center" => style.justify_self = Some(JustifySelf::Center),
"end" => style.justify_self = Some(JustifySelf::End),
"flex_end" => style.justify_self = Some(JustifySelf::FlexEnd),
"flex_start" => style.justify_self = Some(JustifySelf::FlexStart),
"start" => style.justify_self = Some(JustifySelf::Start),
"stretch" => style.justify_self = Some(JustifySelf::Stretch),
_ => {
print_invalid_attrib(&key, &value);
}
},
"align_items" => match &*value {
"baseline" => style.align_items = Some(AlignItems::Baseline),
"center" => style.align_items = Some(AlignItems::Center),
"end" => style.align_items = Some(AlignItems::End),
"flex_end" => style.align_items = Some(AlignItems::FlexEnd),
"flex_start" => style.align_items = Some(AlignItems::FlexStart),
"start" => style.align_items = Some(AlignItems::Start),
"stretch" => style.align_items = Some(AlignItems::Stretch),
_ => {
print_invalid_attrib(&key, &value);
}
},
"align_content" => match &*value {
"center" => style.align_content = Some(AlignContent::Center),
"end" => style.align_content = Some(AlignContent::End),
"flex_end" => style.align_content = Some(AlignContent::FlexEnd),
"flex_start" => style.align_content = Some(AlignContent::FlexStart),
"space_around" => style.align_content = Some(AlignContent::SpaceAround),
"space_between" => style.align_content = Some(AlignContent::SpaceBetween),
"space_evenly" => style.align_content = Some(AlignContent::SpaceEvenly),
"start" => style.align_content = Some(AlignContent::Start),
"stretch" => style.align_content = Some(AlignContent::Stretch),
_ => {
print_invalid_attrib(&key, &value);
}
},
"justify_content" => match &*value {
"center" => style.justify_content = Some(JustifyContent::Center),
"end" => style.justify_content = Some(JustifyContent::End),
"flex_end" => style.justify_content = Some(JustifyContent::FlexEnd),
"flex_start" => style.justify_content = Some(JustifyContent::FlexStart),
"space_around" => style.justify_content = Some(JustifyContent::SpaceAround),
"space_between" => style.justify_content = Some(JustifyContent::SpaceBetween),
"space_evenly" => style.justify_content = Some(JustifyContent::SpaceEvenly),
"start" => style.justify_content = Some(JustifyContent::Start),
"stretch" => style.justify_content = Some(JustifyContent::Stretch),
_ => {
print_invalid_attrib(&key, &value);
}
},
"flex_wrap" => match &*value {
"wrap" => style.flex_wrap = FlexWrap::Wrap,
"no_wrap" => style.flex_wrap = FlexWrap::NoWrap,
"wrap_reverse" => style.flex_wrap = FlexWrap::WrapReverse,
_ => {}
},
"flex_direction" => match &*value {
"column_reverse" => style.flex_direction = FlexDirection::ColumnReverse,
"column" => style.flex_direction = FlexDirection::Column,
"row_reverse" => style.flex_direction = FlexDirection::RowReverse,
"row" => style.flex_direction = FlexDirection::Row,
_ => {
print_invalid_attrib(&key, &value);
}
},
_ => {}
}
}
style
}
fn parse_widget_div<'a>(
file: &mut ParserFile,
node: roxmltree::Node<'a, 'a>,
parent_id: WidgetID,
) -> anyhow::Result<()> {
let style = style_from_node(file, node);
let (new_id, _) = file
.ctx
.layout
.add_child(parent_id, Div::create()?, style)?;
parse_universal(file, node, new_id)?;
parse_children(file, node, new_id)?;
Ok(())
}
fn parse_widget_rectangle<'a>(
file: &mut ParserFile,
node: roxmltree::Node<'a, 'a>,
parent_id: WidgetID,
) -> anyhow::Result<()> {
let mut params = RectangleParams::default();
for (key, value) in iter_attribs(&mut file.ctx.state.var_map, &node) {
match &*key {
"color" => {
if let Some(color) = parse_color_hex(&value) {
params.color = color;
} else {
print_invalid_attrib(&key, &value);
}
}
"color2" => {
if let Some(color) = parse_color_hex(&value) {
params.color2 = color;
} else {
print_invalid_attrib(&key, &value);
}
}
"gradient" => {
params.gradient = match &*value {
"horizontal" => GradientMode::Horizontal,
"vertical" => GradientMode::Vertical,
"radial" => GradientMode::Radial,
"none" => GradientMode::None,
_ => {
print_invalid_attrib(&key, &value);
GradientMode::None
}
}
}
"round" => {
if is_percent(&value) {
if let Some(val) = parse_percent(&value) {
params.round = WLength::Percent(val);
} else {
print_invalid_value(&value);
}
} else if let Some(val) = parse_f32(&value) {
params.round = WLength::Units(val);
} else {
print_invalid_value(&value);
}
}
"border" => {
params.border = value.parse().unwrap_or_else(|_| {
print_invalid_attrib(&key, &value);
0.0
});
}
"border_color" => {
if let Some(color) = parse_color_hex(&value) {
params.border_color = color;
} else {
print_invalid_attrib(&key, &value);
}
}
_ => {}
}
}
let style = style_from_node(file, node);
let (new_id, _) = file
.ctx
.layout
.add_child(parent_id, Rectangle::create(params)?, style)?;
parse_universal(file, node, new_id)?;
parse_children(file, node, new_id)?;
Ok(())
}
fn parse_widget_sprite<'a>(
file: &mut ParserFile,
node: roxmltree::Node<'a, 'a>,
parent_id: WidgetID,
) -> anyhow::Result<()> {
let mut params = SpriteBoxParams::default();
let mut glyph = None;
for (key, value) in iter_attribs(&mut file.ctx.state.var_map, &node) {
match &*key {
"src" => {
glyph = match CustomGlyphContent::from_assets(&mut file.ctx.layout.assets, &value) {
Ok(glyph) => Some(glyph),
Err(e) => {
log::warn!("failed to load {}: {}", value, e);
None
}
}
}
"src_ext" => {
if std::fs::exists(value.as_ref()).unwrap_or(false) {
glyph = CustomGlyphContent::from_file(&value).ok();
}
}
_ => {}
}
}
if let Some(glyph) = glyph {
params.glyph_data = Some(CustomGlyphData::new(glyph));
} else {
log::warn!("No source for sprite node!");
};
let style = style_from_node(file, node);
let (new_id, _) = file
.ctx
.layout
.add_child(parent_id, SpriteBox::create(params)?, style)?;
parse_universal(file, node, new_id)?;
parse_children(file, node, new_id)?;
Ok(())
}
fn parse_widget_label<'a>(
file: &mut ParserFile,
node: roxmltree::Node<'a, 'a>,
parent_id: WidgetID,
) -> anyhow::Result<()> {
let mut params = TextParams::default();
for (key, value) in iter_attribs(&mut file.ctx.state.var_map, &node) {
match &*key {
"text" => {
params.content = String::from(value.as_ref());
}
"color" => {
if let Some(color) = parse_color_hex(&value) {
params.style.color = Some(color);
}
}
"align" => match &*value {
"left" => params.style.align = Some(HorizontalAlign::Left),
"right" => params.style.align = Some(HorizontalAlign::Right),
"center" => params.style.align = Some(HorizontalAlign::Center),
"justified" => params.style.align = Some(HorizontalAlign::Justified),
"end" => params.style.align = Some(HorizontalAlign::End),
_ => {
print_invalid_attrib(&key, &value);
}
},
"weight" => match &*value {
"normal" => params.style.weight = Some(FontWeight::Normal),
"bold" => params.style.weight = Some(FontWeight::Bold),
_ => {
print_invalid_attrib(&key, &value);
}
},
"size" => {
if let Ok(size) = value.parse::<f32>() {
params.style.size = Some(size);
} else {
print_invalid_attrib(&key, &value);
}
}
_ => {}
}
}
let style = style_from_node(file, node);
let (new_id, _) = file
.ctx
.layout
.add_child(parent_id, TextLabel::create(params)?, style)?;
parse_universal(file, node, new_id)?;
parse_children(file, node, new_id)?;
Ok(())
}
fn parse_tag_include<'a>(
file: &'a mut ParserFile,
node: roxmltree::Node<'a, 'a>,
parent_id: WidgetID,
) -> anyhow::Result<()> {
for attrib in node.attributes() {
let (key, value) = (attrib.name(), attrib.value());
#[allow(clippy::single_match)]
match key {
"src" => {
let mut new_path = file.path.parent().unwrap_or(Path::new("/")).to_path_buf();
new_path.push(value);
parse_from_assets_internal(file, parent_id, new_path.clone())?;
return Ok(());
}
_ => {
print_invalid_attrib(key, value);
}
}
}
Ok(())
}
fn parse_tag_var<'a>(file: &mut ParserFile, node: roxmltree::Node<'a, 'a>) -> anyhow::Result<()> {
let mut out_key: Option<&str> = None;
let mut out_value: Option<&str> = None;
for attrib in node.attributes() {
let (key, value) = (attrib.name(), attrib.value());
match key {
"key" => {
out_key = Some(value);
}
"value" => {
out_value = Some(value);
}
_ => {
print_invalid_attrib(key, value);
}
}
}
let Some(key) = out_key else {
print_missing_attrib("var", "key");
return Ok(());
};
let Some(value) = out_value else {
print_missing_attrib("var", "value");
return Ok(());
};
file
.ctx
.state
.var_map
.insert(Rc::from(key), Rc::from(value));
Ok(())
}
#[allow(clippy::manual_strip)]
pub fn iter_attribs<'a>(
var_map: &'a mut VarMap,
node: &roxmltree::Node<'a, 'a>,
) -> impl Iterator<Item = (/*key*/ Rc<str>, /*value*/ Rc<str>)> + 'a {
node.attributes().map(|attrib| {
let (key, value) = (attrib.name(), attrib.value());
if value.starts_with("~") {
let name = &value[1..];
return (
Rc::from(key),
match var_map.get(name) {
Some(name) => name.clone(),
None => Rc::from("undefined"),
},
);
}
(Rc::from(key), Rc::from(value))
})
}
fn parse_tag_theme<'a>(file: &mut ParserFile, node: roxmltree::Node<'a, 'a>) -> anyhow::Result<()> {
for child_node in node.children() {
let child_name = child_node.tag_name().name();
match child_name {
"var" => {
parse_tag_var(file, child_node)?;
}
_ => {
print_invalid_value(child_name);
}
}
}
Ok(())
}
fn parse_universal<'a>(
file: &mut ParserFile,
node: roxmltree::Node<'a, 'a>,
widget_id: WidgetID,
) -> anyhow::Result<()> {
for (key, value) in iter_attribs(&mut file.ctx.state.var_map, &node) {
#[allow(clippy::single_match)]
match &*key {
"id" => {
// Attach a specific widget to name-ID map (just like getElementById)
if file
.ctx
.state
.ids
.insert(value.clone(), widget_id)
.is_some()
{
log::warn!("duplicate ID \"{}\" in the same layout file!", value);
}
}
_ => {}
}
}
Ok(())
}
fn parse_children<'a>(
file: &mut ParserFile,
node: roxmltree::Node<'a, 'a>,
parent_id: WidgetID,
) -> anyhow::Result<()> {
for child_node in node.children() {
match child_node.tag_name().name() {
"include" => {
parse_tag_include(file, child_node, parent_id)?;
}
"div" => {
parse_widget_div(file, child_node, parent_id)?;
}
"rectangle" => {
parse_widget_rectangle(file, child_node, parent_id)?;
}
"label" => {
parse_widget_label(file, child_node, parent_id)?;
}
"sprite" => {
parse_widget_sprite(file, child_node, parent_id)?;
}
_ => {}
}
}
Ok(())
}
fn parse_from_assets_internal(
file: &mut ParserFile,
parent_id: WidgetID,
path: PathBuf,
) -> anyhow::Result<()> {
let data = file
.ctx
.layout
.assets
.load_from_path(&path.to_string_lossy())?;
let data = std::str::from_utf8(&data)?;
parse_str(file, parent_id, data)?;
Ok(())
}
pub fn parse_from_assets(
layout: &mut Layout,
parent_id: WidgetID,
path: &str,
) -> anyhow::Result<ParserState> {
let path = PathBuf::from(path);
let mut result = ParserState::default();
let mut ctx = ParserContext {
layout,
state: &mut result,
};
let mut file = ParserFile {
ctx: &mut ctx,
path: path.clone(),
};
parse_from_assets_internal(&mut file, parent_id, path)?;
Ok(result)
}
fn parse_str(file: &mut ParserFile, parent_id: WidgetID, xml: &str) -> anyhow::Result<()> {
let opt = roxmltree::ParsingOptions {
allow_dtd: true,
..Default::default()
};
let doc = roxmltree::Document::parse_with_options(xml, opt)?;
let root = doc.root();
let tag_layout = require_tag_by_name(root, "layout")?;
for child in tag_layout.children() {
#[allow(clippy::single_match)]
match child.tag_name().name() {
/* topmost include directly in <layout> */
"include" => parse_tag_include(file, child, parent_id)?,
"theme" => parse_tag_theme(file, child)?,
_ => {}
}
}
if let Some(tag_elements) = get_tag_by_name(tag_layout, "elements") {
parse_children(file, tag_elements, parent_id)?;
}
Ok(())
}

221
wgui/src/renderer_vk/context.rs Normal file
View File

@@ -0,0 +1,221 @@
use std::{cell::RefCell, rc::Rc, sync::Arc};
use cosmic_text::Buffer;
use glam::{Mat4, Vec2, Vec3};
use crate::{
drawing,
gfx::{WGfx, cmd::GfxCommandBuffer},
};
use super::{
rect::{RectPipeline, RectRenderer},
text::{
DEFAULT_METRICS, FONT_SYSTEM, SWASH_CACHE, TextArea, TextBounds,
text_atlas::{TextAtlas, TextPipeline},
text_renderer::TextRenderer,
},
viewport::Viewport,
};
struct RendererPass<'a> {
submitted: bool,
text_areas: Vec<TextArea<'a>>,
text_renderer: TextRenderer,
rect_renderer: RectRenderer,
}
impl RendererPass<'_> {
fn new(text_atlas: &mut TextAtlas, rect_pipeline: RectPipeline) -> anyhow::Result<Self> {
let text_renderer = TextRenderer::new(text_atlas)?;
let rect_renderer = RectRenderer::new(rect_pipeline)?;
Ok(Self {
submitted: false,
text_renderer,
rect_renderer,
text_areas: Vec::new(),
})
}
fn submit(
&mut self,
gfx: &Arc<WGfx>,
viewport: &mut Viewport,
cmd_buf: &mut GfxCommandBuffer,
text_atlas: &mut TextAtlas,
) -> anyhow::Result<()> {
if self.submitted {
return Ok(());
}
self.submitted = true;
self.rect_renderer.render(gfx, viewport, cmd_buf)?;
{
let mut font_system = FONT_SYSTEM.lock().unwrap();
let mut swash_cache = SWASH_CACHE.lock().unwrap();
self.text_renderer.prepare(
&mut font_system,
text_atlas,
viewport,
std::mem::take(&mut self.text_areas),
&mut swash_cache,
)?;
}
self.text_renderer.render(text_atlas, viewport, cmd_buf)?;
Ok(())
}
}
pub struct Context {
viewport: Viewport,
text_atlas: TextAtlas,
rect_pipeline: RectPipeline,
text_pipeline: TextPipeline,
pixel_scale: f32,
pub dirty: bool,
empty_text: Rc<RefCell<Buffer>>,
}
impl Context {
pub fn new(
gfx: Arc<WGfx>,
native_format: vulkano::format::Format,
pixel_scale: f32,
) -> anyhow::Result<Self> {
let rect_pipeline = RectPipeline::new(gfx.clone(), native_format)?;
let text_pipeline = TextPipeline::new(gfx.clone(), native_format)?;
let viewport = Viewport::new(gfx.clone())?;
let text_atlas = TextAtlas::new(text_pipeline.clone())?;
Ok(Self {
viewport,
text_atlas,
rect_pipeline,
text_pipeline,
pixel_scale,
dirty: true,
empty_text: Rc::new(RefCell::new(Buffer::new_empty(DEFAULT_METRICS))),
})
}
pub fn regen(&mut self) -> anyhow::Result<()> {
self.text_atlas = TextAtlas::new(self.text_pipeline.clone())?;
self.dirty = true;
Ok(())
}
pub fn update_viewport(&mut self, resolution: [u32; 2], pixel_scale: f32) -> anyhow::Result<()> {
if self.pixel_scale != pixel_scale {
self.pixel_scale = pixel_scale;
self.regen()?;
}
if self.viewport.resolution() != resolution {
self.dirty = true;
}
let size = Vec2::new(
resolution[0] as f32 / pixel_scale,
resolution[1] as f32 / pixel_scale,
);
let fov = 0.4;
let aspect_ratio = size.x / size.y;
let projection = Mat4::perspective_rh(fov, aspect_ratio, 1.0, 100000.0);
let b = size.y / 2.0;
let angle_half = fov / 2.0;
let distance = (std::f32::consts::PI / 2.0 - angle_half).tan() * b;
let view = Mat4::look_at_rh(
Vec3::new(size.x / 2.0, size.y / 2.0, distance),
Vec3::new(size.x / 2.0, size.y / 2.0, 0.0),
Vec3::new(0.0, 1.0, 0.0),
);
let fin = projection * view;
self.viewport.update(resolution, &fin, pixel_scale)?;
Ok(())
}
fn new_pass(&mut self, passes: &mut Vec<RendererPass>) -> anyhow::Result<()> {
passes.push(RendererPass::new(
&mut self.text_atlas,
self.rect_pipeline.clone(),
)?);
Ok(())
}
fn submit_pass(
&mut self,
gfx: &Arc<WGfx>,
cmd_buf: &mut GfxCommandBuffer,
pass: &mut RendererPass,
) -> anyhow::Result<()> {
pass.submit(gfx, &mut self.viewport, cmd_buf, &mut self.text_atlas)?;
Ok(())
}
pub fn draw(
&mut self,
gfx: &Arc<WGfx>,
cmd_buf: &mut GfxCommandBuffer,
primitives: &[drawing::RenderPrimitive],
) -> anyhow::Result<()> {
self.dirty = false;
let mut passes = Vec::<RendererPass>::new();
self.new_pass(&mut passes)?;
for primitive in primitives.iter() {
let pass = passes.last_mut().unwrap(); // always safe
match &primitive.payload {
drawing::PrimitivePayload::Rectangle(rectangle) => {
pass.rect_renderer.add_rect(
primitive.boundary,
*rectangle,
&primitive.transform,
primitive.depth,
);
}
drawing::PrimitivePayload::Text(text) => {
pass.text_areas.push(TextArea {
buffer: text.clone(),
left: primitive.boundary.pos.x * self.pixel_scale,
top: primitive.boundary.pos.y * self.pixel_scale,
bounds: TextBounds::default(), //FIXME: just using boundary coords here doesn't work
scale: self.pixel_scale,
default_color: cosmic_text::Color::rgb(0, 0, 0),
custom_glyphs: &[],
depth: primitive.depth,
transform: primitive.transform,
});
}
drawing::PrimitivePayload::Sprite(sprites) => {
pass.text_areas.push(TextArea {
buffer: self.empty_text.clone(),
left: primitive.boundary.pos.x * self.pixel_scale,
top: primitive.boundary.pos.y * self.pixel_scale,
bounds: TextBounds::default(),
scale: self.pixel_scale,
custom_glyphs: sprites.as_slice(),
default_color: cosmic_text::Color::rgb(255, 0, 255),
depth: primitive.depth,
transform: primitive.transform,
});
}
}
}
let pass = passes.last_mut().unwrap();
self.submit_pass(gfx, cmd_buf, pass)?;
Ok(())
}
}

6
wgui/src/renderer_vk/mod.rs Normal file
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pub mod context;
pub mod model_buffer;
pub mod rect;
pub mod text;
pub mod util;
pub mod viewport;

124
wgui/src/renderer_vk/model_buffer.rs Normal file
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use std::sync::Arc;
use glam::{Mat4, Vec3};
use vulkano::{
buffer::{BufferUsage, Subbuffer},
descriptor_set::DescriptorSet,
};
use crate::{
gfx,
renderer_vk::{rect::RectPipeline, text::text_atlas::TextPipeline},
};
pub struct ModelBuffer {
idx: u32,
models: Vec<glam::Mat4>,
buffer: Subbuffer<[f32]>, //4x4 floats = 1 mat4
buffer_capacity_f32: u32,
rect_descriptor: Option<Arc<DescriptorSet>>,
}
impl ModelBuffer {
pub fn new(gfx: &Arc<gfx::WGfx>) -> anyhow::Result<Self> {
const INITIAL_CAPACITY_MAT4: u32 = 16;
const INITIAL_CAPACITY_F32: u32 = INITIAL_CAPACITY_MAT4 * (4 * 4);
let buffer = gfx.empty_buffer::<f32>(
BufferUsage::STORAGE_BUFFER | BufferUsage::TRANSFER_DST,
INITIAL_CAPACITY_F32 as _,
)?;
let mut models = Vec::<glam::Mat4>::new();
models.resize(INITIAL_CAPACITY_MAT4 as _, Default::default());
Ok(Self {
models,
idx: 0,
buffer,
buffer_capacity_f32: INITIAL_CAPACITY_F32,
rect_descriptor: None,
})
}
pub fn clear(&mut self) {
self.models.clear(); // note: capacity is being preserved here
self.idx = 0;
}
pub fn upload(&mut self, gfx: &Arc<gfx::WGfx>) -> anyhow::Result<()> {
// resize buffer if it's too small
let required_capacity_f32 = (self.models.len() * (4 * 4)) as u32;
if self.buffer_capacity_f32 < required_capacity_f32 {
self.buffer_capacity_f32 = required_capacity_f32;
self.buffer = gfx.empty_buffer::<f32>(
BufferUsage::STORAGE_BUFFER | BufferUsage::TRANSFER_DST,
required_capacity_f32 as _,
)?;
//log::info!("resized to {}", required_capacity_f32);
}
//safe
let floats = unsafe {
std::slice::from_raw_parts(
self.models.as_slice().as_ptr() as *const f32,
required_capacity_f32 as usize,
)
};
self.buffer.write()?.copy_from_slice(floats);
Ok(())
}
// Returns model matrix ID from the model
pub fn register(&mut self, model: &glam::Mat4) -> u32 {
/*for (idx, iter_model) in self.models.iter().enumerate() {
if iter_model == model {
return idx as u32;
}
}*/
if self.idx == self.models.len() as u32 {
self
.models
.resize(self.models.len() * 2, Default::default());
//log::info!("ModelBuffer: resized to {}", self.models.len());
}
// insert new
self.models[self.idx as usize] = *model;
let ret = self.idx;
self.idx += 1;
ret
}
pub fn register_pos_size(
&mut self,
pos: &glam::Vec2,
size: &glam::Vec2,
transform: &Mat4,
) -> u32 {
let mut model = glam::Mat4::from_translation(Vec3::new(pos.x, pos.y, 0.0));
model *= *transform;
model *= glam::Mat4::from_scale(Vec3::new(size.x, size.y, 1.0));
self.register(&model)
}
pub fn get_rect_descriptor(&mut self, pipeline: &RectPipeline) -> Arc<DescriptorSet> {
self
.rect_descriptor
.get_or_insert_with(|| pipeline.color_rect.buffer(1, self.buffer.clone()).unwrap())
.clone()
}
pub fn get_text_descriptor(&mut self, pipeline: &TextPipeline) -> Arc<DescriptorSet> {
self
.rect_descriptor
.get_or_insert_with(|| pipeline.inner.buffer(3, self.buffer.clone()).unwrap())
.clone()
}
}

171
wgui/src/renderer_vk/rect.rs Normal file
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use std::sync::Arc;
use glam::Mat4;
use vulkano::{
buffer::{BufferContents, BufferUsage, Subbuffer},
format::Format,
pipeline::graphics::{input_assembly::PrimitiveTopology, vertex_input::Vertex},
};
use crate::{
drawing::{Boundary, Rectangle},
gfx::{BLEND_ALPHA, WGfx, cmd::GfxCommandBuffer, pipeline::WGfxPipeline},
renderer_vk::model_buffer::ModelBuffer,
};
use super::viewport::Viewport;
#[repr(C)]
#[derive(BufferContents, Vertex, Copy, Clone, Debug)]
pub struct RectVertex {
#[format(R32_UINT)]
pub in_model_idx: u32,
#[format(R32_UINT)]
pub in_rect_dim: [u16; 2],
#[format(R32_UINT)]
pub in_color: u32,
#[format(R32_UINT)]
pub in_color2: u32,
#[format(R32_UINT)]
pub in_border_color: u32,
#[format(R32_UINT)]
pub round_border_gradient: [u8; 4],
#[format(R32_SFLOAT)]
pub depth: f32,
}
/// Cloneable pipeline & shaders to be shared between RectRenderer instances.
#[derive(Clone)]
pub struct RectPipeline {
gfx: Arc<WGfx>,
pub(super) color_rect: Arc<WGfxPipeline<RectVertex>>,
}
impl RectPipeline {
pub fn new(gfx: Arc<WGfx>, format: Format) -> anyhow::Result<Self> {
let vert = vert_rect::load(gfx.device.clone())?;
let frag = frag_rect::load(gfx.device.clone())?;
let color_rect = gfx.create_pipeline::<RectVertex>(
vert,
frag,
format,
Some(BLEND_ALPHA),
PrimitiveTopology::TriangleStrip,
true,
)?;
Ok(Self { gfx, color_rect })
}
}
pub struct RectRenderer {
pipeline: RectPipeline,
rect_vertices: Vec<RectVertex>,
vert_buffer: Subbuffer<[RectVertex]>,
vert_buffer_size: usize,
model_buffer: ModelBuffer,
}
impl RectRenderer {
pub fn new(pipeline: RectPipeline) -> anyhow::Result<Self> {
const BUFFER_SIZE: usize = 128;
let vert_buffer = pipeline.gfx.empty_buffer(
BufferUsage::VERTEX_BUFFER | BufferUsage::TRANSFER_DST,
BUFFER_SIZE as _,
)?;
Ok(Self {
model_buffer: ModelBuffer::new(&pipeline.gfx)?,
pipeline,
rect_vertices: vec![],
vert_buffer,
vert_buffer_size: BUFFER_SIZE,
})
}
pub fn add_rect(
&mut self,
boundary: Boundary,
rectangle: Rectangle,
transform: &Mat4,
depth: f32,
) {
let in_model_idx =
self
.model_buffer
.register_pos_size(&boundary.pos, &boundary.size, transform);
self.rect_vertices.push(RectVertex {
in_model_idx,
in_rect_dim: [boundary.size.x as u16, boundary.size.y as u16],
in_color: cosmic_text::Color::from(rectangle.color).0,
in_color2: cosmic_text::Color::from(rectangle.color2).0,
in_border_color: cosmic_text::Color::from(rectangle.border_color).0,
round_border_gradient: [
rectangle.round_units,
(rectangle.border) as u8,
rectangle.gradient as u8,
0, // unused
],
depth,
});
}
fn upload_verts(&mut self) -> anyhow::Result<()> {
if self.vert_buffer_size < self.rect_vertices.len() {
let new_size = self.vert_buffer_size * 2;
self.vert_buffer = self.pipeline.gfx.empty_buffer(
BufferUsage::VERTEX_BUFFER | BufferUsage::TRANSFER_DST,
new_size as _,
)?;
self.vert_buffer_size = new_size;
}
self.vert_buffer.write()?[0..self.rect_vertices.len()].clone_from_slice(&self.rect_vertices);
Ok(())
}
pub fn render(
&mut self,
gfx: &Arc<WGfx>,
viewport: &mut Viewport,
cmd_buf: &mut GfxCommandBuffer,
) -> anyhow::Result<()> {
let vp = viewport.resolution();
self.model_buffer.upload(gfx)?;
self.upload_verts()?;
let set0 = viewport.get_rect_descriptor(&self.pipeline);
let set1 = self.model_buffer.get_rect_descriptor(&self.pipeline);
let pass = self.pipeline.color_rect.create_pass(
[vp[0] as _, vp[1] as _],
self.vert_buffer.clone(),
0..4,
0..self.rect_vertices.len() as _,
vec![set0, set1],
)?;
self.rect_vertices.clear();
cmd_buf.run_ref(&pass)
}
}
pub mod vert_rect {
vulkano_shaders::shader! {
ty: "vertex",
path: "src/renderer_vk/shaders/rect.vert",
}
}
pub mod frag_rect {
vulkano_shaders::shader! {
ty: "fragment",
path: "src/renderer_vk/shaders/rect.frag",
}
}

5
wgui/src/renderer_vk/shaders/model_buffer.glsl Normal file
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layout(std140, set = MODEL_BUFFER_SET,
binding = 0) readonly buffer ModelBuffer {
mat4 models[];
}
model_buffer;

54
wgui/src/renderer_vk/shaders/rect.frag Normal file
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#version 450
#extension GL_GOOGLE_include_directive : enable
precision highp float;
layout(location = 0) in vec4 in_color;
layout(location = 1) in vec4 in_color2;
layout(location = 2) in vec2 in_uv;
layout(location = 3) in vec4 in_border_color;
layout(location = 4) in float in_border_size; // in units
layout(location = 5) in float in_radius; // in units
layout(location = 6) in vec2 in_rect_size;
layout(location = 0) out vec4 out_color;
#define UNIFORM_PARAMS_SET 0
#include "uniform.glsl"
void main() {
float rect_aspect = in_rect_size.x / in_rect_size.y;
vec2 center = in_rect_size / 2.0;
vec2 coords = in_uv * in_rect_size;
float radius = in_radius;
vec2 sdf_rect_dim = center - vec2(radius);
float sdf = length(max(abs(coords - center), sdf_rect_dim) - sdf_rect_dim) -
in_radius;
vec4 color =
mix(in_color, in_color2, min(length((in_uv - vec2(0.5)) * 2.0), 1.0));
float pixel_size = 1.0 / uniforms.pixel_scale;
if (in_border_size < in_radius) {
// rounded border
float f = in_border_size > 0.0 ? smoothstep(in_border_size + pixel_size,
in_border_size, -sdf) *
in_border_color.a
: 0.0;
out_color = mix(color, in_border_color, f);
} else {
// square border
vec2 a = abs(coords - center);
float aa = center.x - in_border_size;
float bb = center.y - in_border_size;
out_color = (a.x > aa || a.y > bb) ? in_border_color : color;
}
if (in_radius > 0.0) {
// rounding cutout alpha
out_color.a *= 1.0 - smoothstep(-pixel_size, 0.0, sdf);
}
}

93
wgui/src/renderer_vk/shaders/rect.vert Normal file
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#version 450
#extension GL_GOOGLE_include_directive : enable
precision highp float;
layout(location = 0) in uint in_model_idx;
layout(location = 1) in uint in_rect_dim;
layout(location = 2) in uint in_color;
layout(location = 3) in uint in_color2;
layout(location = 4) in uint in_border_color;
layout(location = 5) in uint round_border_gradient;
layout(location = 6) in float depth;
layout(location = 0) out vec4 out_color;
layout(location = 1) out vec4 out_color2;
layout(location = 2) out vec2 out_uv;
layout(location = 3) out vec4 out_border_color;
layout(location = 4) out float out_border_size;
layout(location = 5) out float out_radius;
layout(location = 6) out vec2 out_rect_size;
#define UNIFORM_PARAMS_SET 0
#define MODEL_BUFFER_SET 1
#include "model_buffer.glsl"
#include "uniform.glsl"
void main() {
uint v = uint(gl_VertexIndex); // 0-3
uint rect_width = in_rect_dim & 0xffffu;
uint rect_height = (in_rect_dim & 0xffff0000u) >> 16u;
vec2 rect_size = vec2(float(rect_width), float(rect_height));
float rect_aspect = rect_size.x / rect_size.y;
// 0.0 - 1.0 normalized
uvec2 corner_pos_u = uvec2(v & 1u, (v >> 1u) & 1u);
vec2 corner_pos = vec2(corner_pos_u);
out_uv = corner_pos;
mat4 model_matrix = model_buffer.models[in_model_idx];
out_rect_size = rect_size;
gl_Position =
uniforms.projection * model_matrix * vec4(corner_pos, depth, 1.0);
out_border_color =
vec4(float((in_border_color & 0x00ff0000u) >> 16u) / 255.0,
float((in_border_color & 0x0000ff00u) >> 8u) / 255.0,
float(in_border_color & 0x000000ffu) / 255.0,
float((in_border_color & 0xff000000u) >> 24u) / 255.0);
float radius = float(round_border_gradient & 0xffu);
out_radius = radius;
float border_size = float((round_border_gradient & 0xff00u) >> 8);
out_border_size = border_size;
uint gradient_mode = (round_border_gradient & 0x00ff0000u) >> 16;
uint color;
uint color2;
switch (gradient_mode) {
case 1:
// horizontal
color = corner_pos_u.x > 0u ? in_color2 : in_color;
color2 = color;
break;
case 2:
// vertical
color = corner_pos_u.y > 0u ? in_color2 : in_color;
color2 = color;
break;
case 3:
// radial
color = in_color;
color2 = in_color2;
break;
default: // none
color = in_color;
color2 = in_color;
break;
}
out_color = vec4(float((color & 0x00ff0000u) >> 16u) / 255.0,
float((color & 0x0000ff00u) >> 8u) / 255.0,
float(color & 0x000000ffu) / 255.0,
float((color & 0xff000000u) >> 24u) / 255.0);
out_color2 = vec4(float((color2 & 0x00ff0000u) >> 16u) / 255.0,
float((color2 & 0x0000ff00u) >> 8u) / 255.0,
float(color2 & 0x000000ffu) / 255.0,
float((color2 & 0xff000000u) >> 24u) / 255.0);
}

22
wgui/src/renderer_vk/shaders/styles_buffer.glsl Normal file
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struct StylesData {
float radius;
vec4 color0;
vec4 color1;
uint gradient_style;
vec2 gradient_curve;
vec4 border_size_tlbr;
vec4 border_color0;
vec4 border_color1;
vec4 border_color2;
vec4 border_color3;
uint border_gradient_style;
vec2 border_gradient_curve;
}
layout(std140, set = STYLES_BUFFER_SET,
binding = 0) readonly buffer StylesBuffer {
StylesData styles[];
}
styles_buffer;

22
wgui/src/renderer_vk/shaders/text.frag Normal file
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#version 310 es
#extension GL_GOOGLE_include_directive : enable
precision highp float;
layout(location = 0) in vec4 in_color;
layout(location = 1) in vec2 in_uv;
layout(location = 2) flat in uint in_content_type;
layout(location = 0) out vec4 out_color;
layout(set = 0, binding = 0) uniform sampler2D color_atlas;
layout(set = 1, binding = 0) uniform sampler2D mask_atlas;
void main() {
if (in_content_type == 0u) {
out_color = texture(color_atlas, in_uv);
} else {
out_color.rgb = in_color.rgb;
out_color.a = in_color.a * texture(mask_atlas, in_uv).r;
}
}

61
wgui/src/renderer_vk/shaders/text.vert Normal file
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#version 450
#extension GL_GOOGLE_include_directive : enable
precision highp float;
layout(location = 0) in uint in_model_idx;
layout(location = 1) in uint in_rect_dim;
layout(location = 2) in uint in_uv;
layout(location = 3) in uint in_color;
layout(location = 4) in uint in_content_type;
layout(location = 5) in float depth;
layout(location = 7) in float scale;
layout(location = 0) out vec4 out_color;
layout(location = 1) out vec2 out_uv;
layout(location = 2) flat out uint out_content_type;
layout(set = 0, binding = 0) uniform sampler2D color_atlas;
layout(set = 1, binding = 0) uniform sampler2D mask_atlas;
#define UNIFORM_PARAMS_SET 2
#define MODEL_BUFFER_SET 3
#include "model_buffer.glsl"
#include "uniform.glsl"
void main() {
uint v = uint(gl_VertexIndex); // 0-3
uint rect_width = in_rect_dim & 0xffffu;
uint rect_height = (in_rect_dim & 0xffff0000u) >> 16u;
vec2 rect_size = vec2(float(rect_width), float(rect_height));
float rect_aspect = rect_size.x / rect_size.y;
uvec2 uv = uvec2(in_uv & 0xffffu, (in_uv & 0xffff0000u) >> 16u);
uvec2 corner_pos_u = uvec2(v & 1u, (v >> 1u) & 1u);
vec2 corner_pos = vec2(corner_pos_u);
uvec2 corner_offset = uvec2(rect_width, rect_height) * corner_pos_u;
uv = uv + corner_offset;
mat4 model_matrix = model_buffer.models[in_model_idx];
gl_Position =
uniforms.projection * model_matrix * vec4(corner_pos * scale, depth, 1.0);
out_content_type = in_content_type & 0xffffu;
out_color = vec4(float((in_color & 0x00ff0000u) >> 16u) / 255.0,
float((in_color & 0x0000ff00u) >> 8u) / 255.0,
float(in_color & 0x000000ffu) / 255.0,
float((in_color & 0xff000000u) >> 24u) / 255.0);
uvec2 dim = uvec2(0, 0);
if (in_content_type == 0u) {
dim = uvec2(textureSize(color_atlas, 0));
} else {
dim = uvec2(textureSize(mask_atlas, 0));
}
out_uv = vec2(uv) / vec2(dim);
}

8
wgui/src/renderer_vk/shaders/uniform.glsl Normal file
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// Viewport
layout(std140, set = UNIFORM_PARAMS_SET, binding = 0) uniform UniformParams {
uniform uvec2 screen_resolution;
uniform float pixel_scale;
uniform mat4 projection;
}
uniforms;

259
wgui/src/renderer_vk/text/custom_glyph.rs Normal file
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use std::{
f32,
sync::{
Arc,
atomic::{AtomicUsize, Ordering},
},
};
use cosmic_text::SubpixelBin;
use image::RgbaImage;
use resvg::usvg::{Options, Tree};
use crate::assets::AssetProvider;
static AUTO_INCREMENT: AtomicUsize = AtomicUsize::new(0);
#[derive(Debug, Clone)]
pub enum CustomGlyphContent {
Svg(Box<Tree>),
Image(RgbaImage),
}
impl CustomGlyphContent {
pub fn from_bin_svg(data: &[u8]) -> anyhow::Result<Self> {
let tree = Tree::from_data(data, &Options::default())?;
Ok(CustomGlyphContent::Svg(Box::new(tree)))
}
pub fn from_bin_raster(data: &[u8]) -> anyhow::Result<Self> {
let image = image::load_from_memory(data)?.into_rgba8();
Ok(CustomGlyphContent::Image(image))
}
pub fn from_assets(provider: &mut Box<dyn AssetProvider>, path: &str) -> anyhow::Result<Self> {
let data = provider.load_from_path(path)?;
if path.ends_with(".svg") || path.ends_with(".svgz") {
Ok(CustomGlyphContent::from_bin_svg(&data)?)
} else {
Ok(CustomGlyphContent::from_bin_raster(&data)?)
}
}
pub fn from_file(path: &str) -> anyhow::Result<Self> {
let data = std::fs::read(path)?;
if path.ends_with(".svg") || path.ends_with(".svgz") {
Ok(CustomGlyphContent::from_bin_svg(&data)?)
} else {
Ok(CustomGlyphContent::from_bin_raster(&data)?)
}
}
}
#[derive(Debug, Clone)]
pub struct CustomGlyphData {
pub(super) id: usize,
pub(super) content: Arc<CustomGlyphContent>,
}
impl CustomGlyphData {
pub fn new(content: CustomGlyphContent) -> Self {
Self {
id: AUTO_INCREMENT.fetch_add(1, Ordering::Relaxed),
content: Arc::new(content),
}
}
pub fn dim_for_cache_key(&self, width: u16, height: u16) -> (u16, u16) {
const MAX_RASTER_DIM: u16 = 256;
match self.content.as_ref() {
CustomGlyphContent::Svg(..) => (
width.next_power_of_two().min(MAX_RASTER_DIM),
height.next_power_of_two().min(MAX_RASTER_DIM),
),
CustomGlyphContent::Image(image) => (image.width() as _, image.height() as _),
}
}
}
impl PartialEq for CustomGlyphData {
fn eq(&self, other: &Self) -> bool {
self.id.eq(&other.id)
}
}
/// A custom glyph to render
#[derive(Debug, Clone, PartialEq)]
pub struct CustomGlyph {
/// The unique identifier for this glyph
pub data: CustomGlyphData,
/// The position of the left edge of the glyph
pub left: f32,
/// The position of the top edge of the glyph
pub top: f32,
/// The width of the glyph
pub width: f32,
/// The height of the glyph
pub height: f32,
/// The color of this glyph (only relevant if the glyph is rendered with the
/// type [`ContentType::Mask`])
///
/// Set to `None` to use [`crate::TextArea::default_color`].
pub color: Option<cosmic_text::Color>,
/// If `true`, then this glyph will be snapped to the nearest whole physical
/// pixel and the resulting `SubpixelBin`'s in `RasterizationRequest` will always
/// be `Zero` (useful for images and other large glyphs).
pub snap_to_physical_pixel: bool,
}
impl CustomGlyph {
pub fn new(data: CustomGlyphData) -> Self {
Self {
data,
left: 0.0,
top: 0.0,
width: 0.0,
height: 0.0,
color: None,
snap_to_physical_pixel: true,
}
}
}
/// A request to rasterize a custom glyph
#[derive(Debug, Clone, PartialEq)]
pub struct RasterizeCustomGlyphRequest {
/// The unique identifier of the glyph
pub data: CustomGlyphData,
/// The width of the glyph in physical pixels
pub width: u16,
/// The height of the glyph in physical pixels
pub height: u16,
/// Binning of fractional X offset
///
/// If `CustomGlyph::snap_to_physical_pixel` was set to `true`, then this
/// will always be `Zero`.
pub x_bin: SubpixelBin,
/// Binning of fractional Y offset
///
/// If `CustomGlyph::snap_to_physical_pixel` was set to `true`, then this
/// will always be `Zero`.
pub y_bin: SubpixelBin,
/// The scaling factor applied to the text area (Note that `width` and
/// `height` are already scaled by this factor.)
pub scale: f32,
}
/// A rasterized custom glyph
#[derive(Debug, Clone)]
pub struct RasterizedCustomGlyph {
/// The raw image data
pub data: Vec<u8>,
/// The type of image data contained in `data`
pub content_type: ContentType,
pub width: u16,
pub height: u16,
}
impl RasterizedCustomGlyph {
pub(super) fn try_from(input: &RasterizeCustomGlyphRequest) -> Option<RasterizedCustomGlyph> {
match input.data.content.as_ref() {
CustomGlyphContent::Svg(tree) => rasterize_svg(tree, input),
CustomGlyphContent::Image(data) => rasterize_image(data),
}
}
pub(super) fn validate(
&self,
input: &RasterizeCustomGlyphRequest,
expected_type: Option<ContentType>,
) {
if let Some(expected_type) = expected_type {
assert_eq!(
self.content_type, expected_type,
"Custom glyph rasterizer must always produce the same content type for a given input. Expected {:?}, got {:?}. Input: {:?}",
expected_type, self.content_type, input
);
}
assert_eq!(
self.data.len(),
self.width as usize * self.height as usize * self.content_type.bytes_per_pixel(),
"Invalid custom glyph rasterizer output. Expected data of length {}, got length {}. Input: {:?}",
self.width as usize * self.height as usize * self.content_type.bytes_per_pixel(),
self.data.len(),
input,
);
}
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub struct CustomGlyphCacheKey {
/// Font ID
pub glyph_id: usize,
/// Glyph width
pub width: u16,
/// Glyph height
pub height: u16,
/// Binning of fractional X offset
pub x_bin: SubpixelBin,
/// Binning of fractional Y offset
pub y_bin: SubpixelBin,
}
/// The type of image data contained in a rasterized glyph
#[derive(Debug, Clone, Copy, Eq, PartialEq)]
pub enum ContentType {
/// Each pixel contains 32 bits of rgba data
Color,
/// Each pixel contains a single 8 bit channel
Mask,
}
impl ContentType {
/// The number of bytes per pixel for this content type
pub fn bytes_per_pixel(&self) -> usize {
match self {
Self::Color => 4,
Self::Mask => 1,
}
}
}
fn rasterize_svg(
tree: &Tree,
input: &RasterizeCustomGlyphRequest,
) -> Option<RasterizedCustomGlyph> {
// Calculate the scale based on the "glyph size".
let svg_size = tree.size();
let scale_x = input.width as f32 / svg_size.width();
let scale_y = input.height as f32 / svg_size.height();
let mut pixmap = resvg::tiny_skia::Pixmap::new(input.width as u32, input.height as u32)?;
let mut transform = resvg::usvg::Transform::from_scale(scale_x, scale_y);
// Offset the glyph by the subpixel amount.
let offset_x = input.x_bin.as_float();
let offset_y = input.y_bin.as_float();
if offset_x != 0.0 || offset_y != 0.0 {
transform = transform.post_translate(offset_x, offset_y);
}
resvg::render(tree, transform, &mut pixmap.as_mut());
Some(RasterizedCustomGlyph {
data: pixmap.data().to_vec(),
content_type: ContentType::Color,
width: input.width,
height: input.height,
})
}
fn rasterize_image(image: &RgbaImage) -> Option<RasterizedCustomGlyph> {
Some(RasterizedCustomGlyph {
data: image.to_vec(),
content_type: ContentType::Color,
width: image.width() as _,
height: image.height() as _,
})
}

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pub mod custom_glyph;
mod shaders;
pub mod text_atlas;
pub mod text_renderer;
use std::{
cell::RefCell,
rc::Rc,
sync::{LazyLock, Mutex},
};
use cosmic_text::{
Align, Attrs, Buffer, Color, FontSystem, Metrics, Style, SwashCache, Weight, Wrap,
};
use custom_glyph::{ContentType, CustomGlyph};
use etagere::AllocId;
use glam::Mat4;
use crate::drawing::{self};
pub static FONT_SYSTEM: LazyLock<Mutex<FontSystem>> =
LazyLock::new(|| Mutex::new(FontSystem::new()));
pub static SWASH_CACHE: LazyLock<Mutex<SwashCache>> =
LazyLock::new(|| Mutex::new(SwashCache::new()));
/// Used in case no font_size is defined
const DEFAULT_FONT_SIZE: f32 = 14.;
/// In case no line_height is defined, use font_size * DEFAULT_LINE_HEIGHT_RATIO
const DEFAULT_LINE_HEIGHT_RATIO: f32 = 1.43;
pub(crate) const DEFAULT_METRICS: Metrics = Metrics::new(
DEFAULT_FONT_SIZE,
DEFAULT_FONT_SIZE * DEFAULT_LINE_HEIGHT_RATIO,
);
#[derive(Default, Clone)]
pub struct TextStyle {
pub size: Option<f32>,
pub line_height: Option<f32>,
pub color: Option<drawing::Color>, // TODO: should this be hex?
pub style: Option<FontStyle>,
pub weight: Option<FontWeight>,
pub align: Option<HorizontalAlign>,
pub wrap: bool,
}
impl From<&TextStyle> for Attrs<'_> {
fn from(style: &TextStyle) -> Self {
Attrs::new()
.color(style.color.unwrap_or_default().into())
.style(style.style.unwrap_or_default().into())
.weight(style.weight.unwrap_or_default().into())
}
}
impl From<&TextStyle> for Metrics {
fn from(style: &TextStyle) -> Self {
let font_size = style.size.unwrap_or(DEFAULT_FONT_SIZE);
Metrics {
font_size,
line_height: style
.size
.unwrap_or_else(|| (font_size * DEFAULT_LINE_HEIGHT_RATIO).round()),
}
}
}
impl From<&TextStyle> for Wrap {
fn from(value: &TextStyle) -> Self {
if value.wrap {
Wrap::WordOrGlyph
} else {
Wrap::None
}
}
}
// helper structs for serde
#[derive(Default, Debug, Clone, Copy)]
pub enum FontStyle {
#[default]
Normal,
Italic,
}
impl From<FontStyle> for Style {
fn from(value: FontStyle) -> Style {
match value {
FontStyle::Normal => Style::Normal,
FontStyle::Italic => Style::Italic,
}
}
}
#[derive(Default, Debug, Clone, Copy)]
pub enum FontWeight {
#[default]
Normal,
Bold,
}
impl From<FontWeight> for Weight {
fn from(value: FontWeight) -> Weight {
match value {
FontWeight::Normal => Weight::NORMAL,
FontWeight::Bold => Weight::BOLD,
}
}
}
#[derive(Default, Debug, Clone, Copy)]
pub enum HorizontalAlign {
#[default]
Left,
Right,
Center,
Justified,
End,
}
impl From<HorizontalAlign> for Align {
fn from(value: HorizontalAlign) -> Align {
match value {
HorizontalAlign::Left => Align::Left,
HorizontalAlign::Right => Align::Right,
HorizontalAlign::Center => Align::Center,
HorizontalAlign::Justified => Align::Justified,
HorizontalAlign::End => Align::End,
}
}
}
impl From<drawing::Color> for cosmic_text::Color {
fn from(value: drawing::Color) -> cosmic_text::Color {
cosmic_text::Color::rgba(
(value.r * 255.999) as _,
(value.g * 255.999) as _,
(value.b * 255.999) as _,
(value.a * 255.999) as _,
)
}
}
impl From<cosmic_text::Color> for drawing::Color {
fn from(value: cosmic_text::Color) -> drawing::Color {
drawing::Color::new(
value.r() as f32 / 255.999,
value.g() as f32 / 255.999,
value.b() as f32 / 255.999,
value.a() as f32 / 255.999,
)
}
}
// glyphon types below
pub(super) enum GpuCacheStatus {
InAtlas {
x: u16,
y: u16,
content_type: ContentType,
},
SkipRasterization,
}
pub(super) struct GlyphDetails {
width: u16,
height: u16,
gpu_cache: GpuCacheStatus,
atlas_id: Option<AllocId>,
top: i16,
left: i16,
}
/// Controls the visible area of the text. Any text outside of the visible area will be clipped.
#[derive(Clone, Copy, Debug, Eq, PartialEq)]
pub struct TextBounds {
/// The position of the left edge of the visible area.
pub left: i32,
/// The position of the top edge of the visible area.
pub top: i32,
/// The position of the right edge of the visible area.
pub right: i32,
/// The position of the bottom edge of the visible area.
pub bottom: i32,
}
/// The default visible area doesn't clip any text.
impl Default for TextBounds {
fn default() -> Self {
Self {
left: i32::MIN,
top: i32::MIN,
right: i32::MAX,
bottom: i32::MAX,
}
}
}
/// A text area containing text to be rendered along with its overflow behavior.
#[derive(Clone)]
pub struct TextArea<'a> {
/// The buffer containing the text to be rendered.
pub buffer: Rc<RefCell<Buffer>>,
/// The left edge of the buffer.
pub left: f32,
/// The top edge of the buffer.
pub top: f32,
/// The scaling to apply to the buffer.
pub scale: f32,
/// The visible bounds of the text area. This is used to clip the text and doesn't have to
/// match the `left` and `top` values.
pub bounds: TextBounds,
/// The default color of the text area.
pub default_color: Color,
/// Additional custom glyphs to render.
pub custom_glyphs: &'a [CustomGlyph],
/// Distance from camera, 0.0..=1.0
pub depth: f32,
/// Text transformation
pub transform: Mat4,
}

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pub mod vert_atlas {
vulkano_shaders::shader! {
ty: "vertex",
path: "src/renderer_vk/shaders/text.vert",
}
}
pub mod frag_atlas {
vulkano_shaders::shader! {
ty: "fragment",
path: "src/renderer_vk/shaders/text.frag",
}
}

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use cosmic_text::{FontSystem, SwashCache};
use etagere::{Allocation, BucketedAtlasAllocator, size2};
use lru::LruCache;
use rustc_hash::FxHasher;
use std::{collections::HashSet, hash::BuildHasherDefault, sync::Arc};
use vulkano::{
buffer::BufferContents,
command_buffer::CommandBufferUsage,
descriptor_set::DescriptorSet,
format::Format,
image::{Image, ImageCreateInfo, ImageType, ImageUsage, view::ImageView},
memory::allocator::AllocationCreateInfo,
pipeline::graphics::{input_assembly::PrimitiveTopology, vertex_input::Vertex},
};
use super::{
GlyphDetails, GpuCacheStatus,
custom_glyph::ContentType,
shaders::{frag_atlas, vert_atlas},
text_renderer::GlyphonCacheKey,
};
use crate::gfx::{BLEND_ALPHA, WGfx, pipeline::WGfxPipeline};
/// Pipeline & shaders to be reused between TextRenderer instances
#[derive(Clone)]
pub struct TextPipeline {
pub(super) gfx: Arc<WGfx>,
pub(in super::super) inner: Arc<WGfxPipeline<GlyphVertex>>,
}
impl TextPipeline {
pub fn new(gfx: Arc<WGfx>, format: Format) -> anyhow::Result<Self> {
let vert = vert_atlas::load(gfx.device.clone())?;
let frag = frag_atlas::load(gfx.device.clone())?;
let pipeline = gfx.create_pipeline::<GlyphVertex>(
vert,
frag,
format,
Some(BLEND_ALPHA),
PrimitiveTopology::TriangleStrip,
true,
)?;
Ok(Self {
gfx,
inner: pipeline,
})
}
}
#[repr(C)]
#[derive(BufferContents, Vertex, Copy, Clone, Debug, Default)]
pub struct GlyphVertex {
#[format(R32_UINT)]
pub in_model_idx: u32,
#[format(R32_UINT)]
pub in_rect_dim: [u16; 2],
#[format(R32_UINT)]
pub in_uv: [u16; 2],
#[format(R32_UINT)]
pub in_color: u32,
#[format(R32_UINT)]
pub in_content_type: [u16; 2], // 2 bytes unused! TODO
#[format(R32_SFLOAT)]
pub depth: f32,
#[format(R32_SFLOAT)]
pub scale: f32,
}
type Hasher = BuildHasherDefault<FxHasher>;
pub(super) struct InnerAtlas {
pub kind: Kind,
pub image_view: Arc<ImageView>,
pub image_descriptor: Arc<DescriptorSet>,
pub packer: BucketedAtlasAllocator,
pub size: u32,
pub glyph_cache: LruCache<GlyphonCacheKey, GlyphDetails, Hasher>,
pub glyphs_in_use: HashSet<GlyphonCacheKey, Hasher>,
pub max_texture_dimension_2d: u32,
common: TextPipeline,
}
impl InnerAtlas {
const INITIAL_SIZE: u32 = 256;
fn new(common: TextPipeline, kind: Kind) -> anyhow::Result<Self> {
let max_texture_dimension_2d = common
.gfx
.device
.physical_device()
.properties()
.max_image_dimension2_d;
let size = Self::INITIAL_SIZE.min(max_texture_dimension_2d);
let packer = BucketedAtlasAllocator::new(size2(size as i32, size as i32));
// Create a texture to use for our atlas
let image = Image::new(
common.gfx.memory_allocator.clone(),
ImageCreateInfo {
image_type: ImageType::Dim2d,
format: kind.texture_format(),
extent: [size, size, 1],
usage: ImageUsage::SAMPLED | ImageUsage::TRANSFER_SRC | ImageUsage::TRANSFER_DST,
..Default::default()
},
AllocationCreateInfo::default(),
)?;
let image_view = ImageView::new_default(image).unwrap();
let image_descriptor = common.inner.uniform_sampler(
Self::descriptor_set(kind),
image_view.clone(),
common.gfx.texture_filter,
)?;
let glyph_cache = LruCache::unbounded_with_hasher(Hasher::default());
let glyphs_in_use = HashSet::with_hasher(Hasher::default());
Ok(Self {
kind,
image_view,
image_descriptor,
packer,
size,
glyph_cache,
glyphs_in_use,
max_texture_dimension_2d,
common,
})
}
fn descriptor_set(kind: Kind) -> usize {
match kind {
Kind::Color => 0,
Kind::Mask => 1,
}
}
pub(super) fn try_allocate(&mut self, width: usize, height: usize) -> Option<Allocation> {
let size = size2(width as i32, height as i32);
loop {
let allocation = self.packer.allocate(size);
if allocation.is_some() {
return allocation;
}
// Try to free least recently used allocation
let (mut key, mut value) = self.glyph_cache.peek_lru()?;
// Find a glyph with an actual size
while value.atlas_id.is_none() {
// All sized glyphs are in use, cache is full
if self.glyphs_in_use.contains(key) {
return None;
}
let _ = self.glyph_cache.pop_lru();
(key, value) = self.glyph_cache.peek_lru()?;
}
// All sized glyphs are in use, cache is full
if self.glyphs_in_use.contains(key) {
return None;
}
let (_, value) = self.glyph_cache.pop_lru().unwrap();
self.packer.deallocate(value.atlas_id.unwrap());
}
}
#[allow(dead_code)]
pub fn num_channels(&self) -> usize {
self.kind.num_channels()
}
pub(super) fn grow(
&mut self,
font_system: &mut FontSystem,
cache: &mut SwashCache,
) -> anyhow::Result<bool> {
if self.size >= self.max_texture_dimension_2d {
return Ok(false);
}
// Grow each dimension by a factor of 2. The growth factor was chosen to match the growth
// factor of `Vec`.`
const GROWTH_FACTOR: u32 = 2;
let new_size = (self.size * GROWTH_FACTOR).min(self.max_texture_dimension_2d);
log::info!("Grow {:?} atlas {} → {new_size}", self.kind, self.size);
self.packer.grow(size2(new_size as i32, new_size as i32));
let old_image = self.image_view.image().clone();
let image = self.common.gfx.new_image(
new_size,
new_size,
old_image.format(),
ImageUsage::SAMPLED | ImageUsage::TRANSFER_SRC | ImageUsage::TRANSFER_DST,
)?;
self.image_view = ImageView::new_default(image.clone()).unwrap();
let mut cmd_buf = self
.common
.gfx
.create_xfer_command_buffer(CommandBufferUsage::OneTimeSubmit)?;
// Re-upload glyphs
for (&cache_key, glyph) in &self.glyph_cache {
let (x, y) = match glyph.gpu_cache {
GpuCacheStatus::InAtlas { x, y, .. } => (x, y),
GpuCacheStatus::SkipRasterization => continue,
};
let (width, height) = match cache_key {
GlyphonCacheKey::Text(cache_key) => {
let image = cache.get_image_uncached(font_system, cache_key).unwrap();
let width = image.placement.width as usize;
let height = image.placement.height as usize;
(width, height)
}
GlyphonCacheKey::Custom(cache_key) => (cache_key.width as usize, cache_key.height as usize),
};
let offset = [x as _, y as _, 0];
cmd_buf.copy_image(
old_image.clone(),
offset,
image.clone(),
offset,
Some([width as _, height as _, 1]),
)?;
}
cmd_buf.build_and_execute_now()?;
self.size = new_size;
Ok(true)
}
fn trim(&mut self) {
self.glyphs_in_use.clear();
}
fn rebind_descriptor(&mut self) -> anyhow::Result<()> {
self.image_descriptor = self.common.inner.uniform_sampler(
Self::descriptor_set(self.kind),
self.image_view.clone(),
self.common.gfx.texture_filter,
)?;
Ok(())
}
}
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub(super) enum Kind {
Mask,
Color,
}
impl Kind {
fn num_channels(self) -> usize {
match self {
Kind::Mask => 1,
Kind::Color => 4,
}
}
fn texture_format(self) -> Format {
match self {
Kind::Mask => Format::R8_UNORM,
Kind::Color => Format::R8G8B8A8_UNORM,
}
}
}
/// An atlas containing a cache of rasterized glyphs that can be rendered.
pub struct TextAtlas {
pub(super) common: TextPipeline,
pub(super) color_atlas: InnerAtlas,
pub(super) mask_atlas: InnerAtlas,
}
impl TextAtlas {
/// Creates a new [`TextAtlas`].
pub fn new(common: TextPipeline) -> anyhow::Result<Self> {
let color_atlas = InnerAtlas::new(common.clone(), Kind::Color)?;
let mask_atlas = InnerAtlas::new(common.clone(), Kind::Mask)?;
Ok(Self {
common,
color_atlas,
mask_atlas,
})
}
pub fn trim(&mut self) {
self.mask_atlas.trim();
self.color_atlas.trim();
}
pub(super) fn grow(
&mut self,
font_system: &mut FontSystem,
cache: &mut SwashCache,
content_type: ContentType,
) -> anyhow::Result<bool> {
let did_grow = match content_type {
ContentType::Mask => self.mask_atlas.grow(font_system, cache)?,
ContentType::Color => self.color_atlas.grow(font_system, cache)?,
};
if did_grow {
self.color_atlas.rebind_descriptor()?;
self.mask_atlas.rebind_descriptor()?;
}
Ok(did_grow)
}
pub(super) fn inner_for_content_mut(&mut self, content_type: ContentType) -> &mut InnerAtlas {
match content_type {
ContentType::Color => &mut self.color_atlas,
ContentType::Mask => &mut self.mask_atlas,
}
}
}

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use crate::{
gfx::cmd::GfxCommandBuffer,
renderer_vk::{model_buffer::ModelBuffer, viewport::Viewport},
};
use super::{
ContentType, FontSystem, GlyphDetails, GpuCacheStatus, SwashCache, TextArea,
custom_glyph::{CustomGlyphCacheKey, RasterizeCustomGlyphRequest, RasterizedCustomGlyph},
text_atlas::{GlyphVertex, TextAtlas, TextPipeline},
};
use cosmic_text::{Color, SubpixelBin, SwashContent};
use glam::{Mat4, Vec2, Vec3};
use vulkano::{
buffer::{BufferUsage, Subbuffer},
command_buffer::CommandBufferUsage,
};
/// A text renderer that uses cached glyphs to render text into an existing render pass.
pub struct TextRenderer {
pipeline: TextPipeline,
vertex_buffer: Subbuffer<[GlyphVertex]>,
vertex_buffer_capacity: usize,
glyph_vertices: Vec<GlyphVertex>,
model_buffer: ModelBuffer,
}
impl TextRenderer {
/// Creates a new `TextRenderer`.
pub fn new(atlas: &mut TextAtlas) -> anyhow::Result<Self> {
// A buffer element is a single quad with a glyph on it
const INITIAL_CAPACITY: usize = 256;
let vertex_buffer = atlas.common.gfx.empty_buffer(
BufferUsage::VERTEX_BUFFER | BufferUsage::TRANSFER_DST,
INITIAL_CAPACITY as _,
)?;
Ok(Self {
model_buffer: ModelBuffer::new(&atlas.common.gfx)?,
pipeline: atlas.common.clone(),
vertex_buffer,
vertex_buffer_capacity: INITIAL_CAPACITY,
glyph_vertices: Vec::new(),
})
}
/// Prepares all of the provided text areas for rendering.
pub fn prepare<'a>(
&mut self,
font_system: &mut FontSystem,
atlas: &mut TextAtlas,
viewport: &Viewport,
text_areas: impl IntoIterator<Item = TextArea<'a>>,
cache: &mut SwashCache,
) -> anyhow::Result<()> {
self.glyph_vertices.clear();
let resolution = viewport.resolution();
for text_area in text_areas {
let bounds_min_x = text_area.bounds.left.max(0);
let bounds_min_y = text_area.bounds.top.max(0);
let bounds_max_x = text_area.bounds.right.min(resolution[0] as i32);
let bounds_max_y = text_area.bounds.bottom.min(resolution[1] as i32);
for glyph in text_area.custom_glyphs.iter() {
let x = text_area.left + (glyph.left * text_area.scale);
let y = text_area.top + (glyph.top * text_area.scale);
let width = (glyph.width * text_area.scale).round() as u16;
let height = (glyph.height * text_area.scale).round() as u16;
let (x, y, x_bin, y_bin) = if glyph.snap_to_physical_pixel {
(
x.round() as i32,
y.round() as i32,
SubpixelBin::Zero,
SubpixelBin::Zero,
)
} else {
let (x, x_bin) = SubpixelBin::new(x);
let (y, y_bin) = SubpixelBin::new(y);
(x, y, x_bin, y_bin)
};
let (cached_width, cached_height) = glyph.data.dim_for_cache_key(width, height);
let cache_key = GlyphonCacheKey::Custom(CustomGlyphCacheKey {
glyph_id: glyph.data.id,
width: cached_width,
height: cached_height,
x_bin,
y_bin,
});
let color = glyph.color.unwrap_or(text_area.default_color);
if let Some(glyph_to_render) = prepare_glyph(
PrepareGlyphParams {
label_pos: Vec2::new(text_area.left, text_area.top),
x,
y,
line_y: 0.0,
color,
cache_key,
atlas,
cache,
font_system,
model_buffer: &mut self.model_buffer,
scale_factor: text_area.scale,
glyph_scale: width as f32 / cached_width as f32,
bounds_min_x,
bounds_min_y,
bounds_max_x,
bounds_max_y,
depth: text_area.depth,
transform: &text_area.transform,
},
|_cache, _font_system| -> Option<GetGlyphImageResult> {
if cached_width == 0 || cached_height == 0 {
return None;
}
let input = RasterizeCustomGlyphRequest {
data: glyph.data.clone(),
width: cached_width,
height: cached_height,
x_bin,
y_bin,
scale: text_area.scale,
};
let output = RasterizedCustomGlyph::try_from(&input)?;
output.validate(&input, None);
Some(GetGlyphImageResult {
content_type: output.content_type,
top: 0,
left: 0,
width: output.width,
height: output.height,
data: output.data,
})
},
)? {
self.glyph_vertices.push(glyph_to_render);
}
}
let is_run_visible = |run: &cosmic_text::LayoutRun| {
let start_y_physical = (text_area.top + (run.line_top * text_area.scale)) as i32;
let end_y_physical = start_y_physical + (run.line_height * text_area.scale) as i32;
start_y_physical <= text_area.bounds.bottom && text_area.bounds.top <= end_y_physical
};
let buffer = text_area.buffer.borrow();
let layout_runs = buffer
.layout_runs()
.skip_while(|run| !is_run_visible(run))
.take_while(is_run_visible);
for run in layout_runs {
for glyph in run.glyphs.iter() {
let physical_glyph = glyph.physical((text_area.left, text_area.top), text_area.scale);
let color = match glyph.color_opt {
Some(some) => some,
None => text_area.default_color,
};
if let Some(glyph_to_render) = prepare_glyph(
PrepareGlyphParams {
label_pos: Vec2::new(text_area.left, text_area.top),
x: physical_glyph.x,
y: physical_glyph.y,
line_y: run.line_y,
color,
cache_key: GlyphonCacheKey::Text(physical_glyph.cache_key),
atlas,
cache,
font_system,
model_buffer: &mut self.model_buffer,
glyph_scale: 1.0,
scale_factor: text_area.scale,
bounds_min_x,
bounds_min_y,
bounds_max_x,
bounds_max_y,
depth: text_area.depth,
transform: &text_area.transform,
},
|cache, font_system| -> Option<GetGlyphImageResult> {
let image = cache.get_image_uncached(font_system, physical_glyph.cache_key)?;
let content_type = match image.content {
SwashContent::Color => ContentType::Color,
SwashContent::Mask => ContentType::Mask,
SwashContent::SubpixelMask => {
// Not implemented yet, but don't panic if this happens.
ContentType::Mask
}
};
Some(GetGlyphImageResult {
content_type,
top: image.placement.top as i16,
left: image.placement.left as i16,
width: image.placement.width as u16,
height: image.placement.height as u16,
data: image.data,
})
},
)? {
self.glyph_vertices.push(glyph_to_render);
}
}
}
}
let will_render = !self.glyph_vertices.is_empty();
if !will_render {
return Ok(());
}
let vertices = self.glyph_vertices.as_slice();
while self.vertex_buffer_capacity < vertices.len() {
let new_capacity = self.vertex_buffer_capacity * 2;
self.vertex_buffer = self.pipeline.gfx.empty_buffer(
BufferUsage::VERTEX_BUFFER | BufferUsage::TRANSFER_DST,
new_capacity as _,
)?;
self.vertex_buffer_capacity = new_capacity;
}
self.vertex_buffer.write()?[..vertices.len()].clone_from_slice(vertices);
Ok(())
}
/// Renders all layouts that were previously provided to `prepare`.
pub fn render(
&mut self,
atlas: &TextAtlas,
viewport: &mut Viewport,
cmd_buf: &mut GfxCommandBuffer,
) -> anyhow::Result<()> {
if self.glyph_vertices.is_empty() {
return Ok(());
}
self.model_buffer.upload(&atlas.common.gfx)?;
let descriptor_sets = vec![
atlas.color_atlas.image_descriptor.clone(),
atlas.mask_atlas.image_descriptor.clone(),
viewport.get_text_descriptor(&self.pipeline),
self.model_buffer.get_text_descriptor(&self.pipeline),
];
let res = viewport.resolution();
let pass = self.pipeline.inner.create_pass(
[res[0] as _, res[1] as _],
self.vertex_buffer.clone(),
0..4,
0..self.glyph_vertices.len() as u32,
descriptor_sets,
)?;
cmd_buf.run_ref(&pass)
}
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub(super) enum GlyphonCacheKey {
Text(cosmic_text::CacheKey),
Custom(CustomGlyphCacheKey),
}
struct GetGlyphImageResult {
content_type: ContentType,
top: i16,
left: i16,
width: u16,
height: u16,
data: Vec<u8>,
}
struct PrepareGlyphParams<'a> {
label_pos: Vec2,
x: i32,
y: i32,
line_y: f32,
color: Color,
cache_key: GlyphonCacheKey,
atlas: &'a mut TextAtlas,
cache: &'a mut SwashCache,
font_system: &'a mut FontSystem,
model_buffer: &'a mut ModelBuffer,
transform: &'a Mat4,
scale_factor: f32,
glyph_scale: f32,
bounds_min_x: i32,
bounds_min_y: i32,
bounds_max_x: i32,
bounds_max_y: i32,
depth: f32,
}
#[allow(clippy::too_many_arguments)]
fn prepare_glyph(
par: PrepareGlyphParams,
get_glyph_image: impl FnOnce(&mut SwashCache, &mut FontSystem) -> Option<GetGlyphImageResult>,
) -> anyhow::Result<Option<GlyphVertex>> {
let gfx = par.atlas.common.gfx.clone();
let details = if let Some(details) = par.atlas.mask_atlas.glyph_cache.get(&par.cache_key) {
par.atlas.mask_atlas.glyphs_in_use.insert(par.cache_key);
details
} else if let Some(details) = par.atlas.color_atlas.glyph_cache.get(&par.cache_key) {
par.atlas.color_atlas.glyphs_in_use.insert(par.cache_key);
details
} else {
let Some(image) = (get_glyph_image)(par.cache, par.font_system) else {
return Ok(None);
};
let should_rasterize = image.width > 0 && image.height > 0;
let (gpu_cache, atlas_id, inner) = if should_rasterize {
let mut inner = par.atlas.inner_for_content_mut(image.content_type);
// Find a position in the packer
let allocation = loop {
match inner.try_allocate(image.width as usize, image.height as usize) {
Some(a) => break a,
None => {
if !par
.atlas
.grow(par.font_system, par.cache, image.content_type)?
{
anyhow::bail!(
"Atlas full. atlas: {:?} cache_key: {:?}",
image.content_type,
par.cache_key
);
}
inner = par.atlas.inner_for_content_mut(image.content_type);
}
}
};
let atlas_min = allocation.rectangle.min;
let mut cmd_buf = gfx.create_xfer_command_buffer(CommandBufferUsage::OneTimeSubmit)?;
cmd_buf.update_image(
inner.image_view.image().clone(),
&image.data,
[atlas_min.x as _, atlas_min.y as _, 0],
Some([image.width as _, image.height as _, 1]),
)?;
cmd_buf.build_and_execute_now()?; //TODO: do not wait for fence here
(
GpuCacheStatus::InAtlas {
x: atlas_min.x as u16,
y: atlas_min.y as u16,
content_type: image.content_type,
},
Some(allocation.id),
inner,
)
} else {
let inner = &mut par.atlas.color_atlas;
(GpuCacheStatus::SkipRasterization, None, inner)
};
inner.glyphs_in_use.insert(par.cache_key);
// Insert the glyph into the cache and return the details reference
inner
.glyph_cache
.get_or_insert(par.cache_key, || GlyphDetails {
width: image.width,
height: image.height,
gpu_cache,
atlas_id,
top: image.top,
left: image.left,
})
};
let mut x = par.x + details.left as i32;
let mut y = (par.line_y * par.scale_factor).round() as i32 + par.y - details.top as i32;
let (mut atlas_x, mut atlas_y, content_type) = match details.gpu_cache {
GpuCacheStatus::InAtlas { x, y, content_type } => (x, y, content_type),
GpuCacheStatus::SkipRasterization => return Ok(None),
};
let mut glyph_width = details.width as i32;
let mut glyph_height = details.height as i32;
// Starts beyond right edge or ends beyond left edge
let max_x = x + glyph_width;
if x > par.bounds_max_x || max_x < par.bounds_min_x {
return Ok(None);
}
// Starts beyond bottom edge or ends beyond top edge
let max_y = y + glyph_height;
if y > par.bounds_max_y || max_y < par.bounds_min_y {
return Ok(None);
}
// Clip left ege
if x < par.bounds_min_x {
let right_shift = par.bounds_min_x - x;
x = par.bounds_min_x;
glyph_width = max_x - par.bounds_min_x;
atlas_x += right_shift as u16;
}
// Clip right edge
if x + glyph_width > par.bounds_max_x {
glyph_width = par.bounds_max_x - x;
}
// Clip top edge
if y < par.bounds_min_y {
let bottom_shift = par.bounds_min_y - y;
y = par.bounds_min_y;
glyph_height = max_y - par.bounds_min_y;
atlas_y += bottom_shift as u16;
}
// Clip bottom edge
if y + glyph_height > par.bounds_max_y {
glyph_height = par.bounds_max_y - y;
}
let mut model = Mat4::IDENTITY;
// top-left text transform
model *= Mat4::from_translation(Vec3::new(
par.label_pos.x / par.scale_factor,
par.label_pos.y / par.scale_factor,
0.0,
));
model *= *par.transform;
// per-character transform
model *= Mat4::from_translation(Vec3::new(
((x as f32) - par.label_pos.x) / par.scale_factor,
((y as f32) - par.label_pos.y) / par.scale_factor,
0.0,
));
model *= glam::Mat4::from_scale(Vec3::new(
glyph_width as f32 / par.scale_factor,
glyph_height as f32 / par.scale_factor,
0.0,
));
let in_model_idx = par.model_buffer.register(&model);
Ok(Some(GlyphVertex {
in_model_idx,
in_rect_dim: [glyph_width as u16, glyph_height as u16],
in_uv: [atlas_x, atlas_y],
in_color: par.color.0,
in_content_type: [
content_type as u16,
0, // unused (TODO!)
],
depth: par.depth,
scale: par.glyph_scale,
}))
}

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use vulkano::buffer::BufferContents;
// binary compatible mat4 which could be transparently used by vulkano BufferContents
#[repr(C)]
#[derive(Clone, Copy, Debug, PartialEq, BufferContents)]
pub struct WMat4(pub [f32; 16]);
impl WMat4 {
pub fn from_glam(mat: &glam::Mat4) -> WMat4 {
WMat4(*mat.as_ref())
}
}
impl Default for WMat4 {
fn default() -> Self {
Self(*glam::Mat4::IDENTITY.as_ref())
}
}

103
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use std::sync::Arc;
use vulkano::{
buffer::{BufferContents, BufferUsage, Subbuffer},
descriptor_set::DescriptorSet,
};
use crate::{gfx::WGfx, renderer_vk::util::WMat4};
use super::{rect::RectPipeline, text::text_atlas::TextPipeline};
/// Controls the visible area of all text for a given renderer. Any text outside of the visible
/// area will be clipped.
pub struct Viewport {
params: Params,
params_buffer: Subbuffer<[Params]>,
text_descriptor: Option<Arc<DescriptorSet>>,
rect_descriptor: Option<Arc<DescriptorSet>>,
}
impl Viewport {
/// Creates a new `Viewport` with the given `device` and `cache`.
pub fn new(gfx: Arc<WGfx>) -> anyhow::Result<Self> {
let params = Params {
screen_resolution: [0, 0],
pixel_scale: 1.0,
padding1: [0.0],
projection: WMat4::default(),
};
let params_buffer = gfx.new_buffer(
BufferUsage::UNIFORM_BUFFER | BufferUsage::TRANSFER_DST,
[params].iter(),
)?;
Ok(Self {
params,
params_buffer,
text_descriptor: None,
rect_descriptor: None,
})
}
pub fn get_text_descriptor(&mut self, pipeline: &TextPipeline) -> Arc<DescriptorSet> {
self
.text_descriptor
.get_or_insert_with(|| {
pipeline
.inner
.buffer(2, self.params_buffer.clone())
.unwrap() // safe unwrap
})
.clone()
}
pub fn get_rect_descriptor(&mut self, pipeline: &RectPipeline) -> Arc<DescriptorSet> {
self
.rect_descriptor
.get_or_insert_with(|| {
pipeline
.color_rect
.buffer(0, self.params_buffer.clone())
.unwrap() // safe unwrap
})
.clone()
}
/// Updates the `Viewport` with the given `resolution` and `projection`.
pub fn update(
&mut self,
resolution: [u32; 2],
projection: &glam::Mat4,
pixel_scale: f32,
) -> anyhow::Result<()> {
if self.params.screen_resolution == resolution
&& self.params.projection.0 == *projection.as_ref()
&& self.params.pixel_scale == pixel_scale
{
return Ok(());
}
self.params.screen_resolution = resolution;
self.params.projection = WMat4::from_glam(projection);
self.params.pixel_scale = pixel_scale;
self.params_buffer.write()?.copy_from_slice(&[self.params]);
Ok(())
}
/// Returns the current resolution of the `Viewport`.
pub fn resolution(&self) -> [u32; 2] {
self.params.screen_resolution
}
}
#[repr(C)]
#[derive(BufferContents, Clone, Copy, Debug, PartialEq)]
pub(crate) struct Params {
pub screen_resolution: [u32; 2],
pub pixel_scale: f32,
pub padding1: [f32; 1], // always zero
pub projection: WMat4,
}

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use glam::Vec2;
#[derive(Default, Copy, Clone)]
pub struct Transform {
pub pos: Vec2,
pub transform: glam::Mat4,
pub dim: Vec2, // for convenience
}
const TRANSFORM_STACK_MAX: usize = 64;
pub struct TransformStack {
pub stack: [Transform; TRANSFORM_STACK_MAX],
top: u8,
}
impl TransformStack {
pub fn new() -> Self {
Self {
stack: [Default::default(); TRANSFORM_STACK_MAX],
top: 1,
}
}
pub fn push(&mut self, mut t: Transform) {
assert!(self.top < TRANSFORM_STACK_MAX as u8);
let idx = (self.top - 1) as usize;
t.pos += self.stack[idx].pos;
self.stack[self.top as usize] = t;
self.top += 1;
}
pub fn pop(&mut self) {
assert!(self.top > 0);
self.top -= 1;
}
pub fn get(&self) -> &Transform {
&self.stack[(self.top - 1) as usize]
}
pub fn get_pos(&self) -> Vec2 {
self.stack[(self.top - 1) as usize].pos
}
}
impl Default for TransformStack {
fn default() -> Self {
Self::new()
}
}

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wgui/src/widget/div.rs Normal file
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use super::{WidgetObj, WidgetState};
pub struct Div {}
impl Div {
pub fn create() -> anyhow::Result<WidgetState> {
WidgetState::new(Box::new(Self {}))
}
}
impl WidgetObj for Div {
fn draw(&mut self, _state: &mut super::DrawState, _params: &super::DrawParams) {
// no-op
}
}

342
wgui/src/widget/mod.rs Normal file
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use glam::Vec2;
use super::drawing::RenderPrimitive;
use crate::{
animation,
any::AnyTrait,
drawing,
event::{CallbackData, Event, EventListener, MouseWheelEvent},
layout::{Layout, WidgetID, WidgetMap},
transform_stack::TransformStack,
};
pub mod div;
pub mod rectangle;
pub mod sprite;
pub mod text;
pub mod util;
pub struct WidgetData {
pub hovered: bool,
pub pressed: bool,
pub scrolling: Vec2, // normalized, 0.0-1.0. Not used in case if overflow != scroll
pub transform: glam::Mat4,
}
pub struct WidgetState {
pub data: WidgetData,
pub obj: Box<dyn WidgetObj>,
pub event_listeners: Vec<EventListener>,
}
impl WidgetState {
fn new(obj: Box<dyn WidgetObj>) -> anyhow::Result<WidgetState> {
Ok(Self {
data: WidgetData {
hovered: false,
pressed: false,
scrolling: Vec2::default(),
transform: glam::Mat4::IDENTITY,
},
event_listeners: Vec::new(),
obj,
})
}
}
// global draw params
pub struct DrawState<'a> {
pub layout: &'a Layout,
pub primitives: &'a mut Vec<RenderPrimitive>,
pub transform_stack: &'a mut TransformStack,
pub depth: f32, //TODO: actually use this in shader
}
// per-widget draw params
pub struct DrawParams<'a> {
pub node_id: taffy::NodeId,
pub style: &'a taffy::Style,
pub taffy_layout: &'a taffy::Layout,
}
pub trait WidgetObj: AnyTrait {
fn draw(&mut self, state: &mut DrawState, params: &DrawParams);
fn measure(
&mut self,
_known_dimensions: taffy::Size<Option<f32>>,
_available_space: taffy::Size<taffy::AvailableSpace>,
) -> taffy::Size<f32> {
taffy::Size::ZERO
}
}
pub struct EventParams<'a> {
pub node_id: taffy::NodeId,
pub style: &'a taffy::Style,
pub taffy_layout: &'a taffy::Layout,
pub widgets: &'a WidgetMap,
pub tree: &'a taffy::TaffyTree<WidgetID>,
pub transform_stack: &'a TransformStack,
pub animations: &'a mut Vec<animation::Animation>,
pub needs_redraw: &'a mut bool,
pub dirty_nodes: &'a mut Vec<taffy::NodeId>,
}
pub enum EventResult {
Pass,
Consumed,
Outside,
}
fn get_scroll_enabled(style: &taffy::Style) -> (bool, bool) {
(
style.overflow.x == taffy::Overflow::Scroll,
style.overflow.y == taffy::Overflow::Scroll,
)
}
pub struct ScrollbarInfo {
// total contents size of the currently scrolling widget
content_size: Vec2,
// 0.0 - 1.0
// 1.0: scrollbar handle not visible (inactive)
handle_size: Vec2,
}
pub fn get_scrollbar_info(l: &taffy::Layout) -> Option<ScrollbarInfo> {
let overflow = Vec2::new(l.scroll_width(), l.scroll_height());
if overflow.x == 0.0 && overflow.y == 0.0 {
return None; // not overflowing
}
let content_size = Vec2::new(l.content_size.width, l.content_size.height);
let handle_size = 1.0 - (overflow / content_size);
Some(ScrollbarInfo {
content_size,
handle_size,
})
}
impl dyn WidgetObj {
pub fn get_as<T: 'static>(&self) -> &T {
let any = self.as_any();
any.downcast_ref::<T>().unwrap()
}
pub fn get_as_mut<T: 'static>(&mut self) -> &mut T {
let any = self.as_any_mut();
any.downcast_mut::<T>().unwrap()
}
}
impl WidgetState {
pub fn add_event_listener(&mut self, listener: EventListener) {
self.event_listeners.push(listener);
}
pub fn get_scroll_shift(&self, info: &ScrollbarInfo, l: &taffy::Layout) -> Vec2 {
Vec2::new(
(info.content_size.x - l.content_box_width()) * self.data.scrolling.x,
(info.content_size.y - l.content_box_height()) * self.data.scrolling.y,
)
}
pub fn draw_all(&mut self, state: &mut DrawState, params: &DrawParams) {
self.obj.draw(state, params);
}
pub fn draw_scrollbars(
&mut self,
state: &mut DrawState,
params: &DrawParams,
info: &ScrollbarInfo,
) {
let (enabled_horiz, enabled_vert) = get_scroll_enabled(params.style);
if !enabled_horiz && !enabled_vert {
return;
}
let transform = state.transform_stack.get();
let thickness = 6.0;
let margin = 4.0;
let rect_params = drawing::Rectangle {
color: drawing::Color::new(1.0, 1.0, 1.0, 0.0),
border: 2.0,
border_color: drawing::Color::new(1.0, 1.0, 1.0, 1.0),
round_units: 2,
..Default::default()
};
// Horizontal handle
if enabled_horiz && info.handle_size.x < 1.0 {
state.primitives.push(drawing::RenderPrimitive {
boundary: drawing::Boundary::from_pos_size(
Vec2::new(
transform.pos.x + transform.dim.x * (1.0 - info.handle_size.x) * self.data.scrolling.x,
transform.pos.y + transform.dim.y - thickness - margin,
),
Vec2::new(transform.dim.x * info.handle_size.x, thickness),
),
depth: state.depth,
transform: transform.transform,
payload: drawing::PrimitivePayload::Rectangle(rect_params),
});
}
// Vertical handle
if enabled_vert && info.handle_size.y < 1.0 {
state.primitives.push(drawing::RenderPrimitive {
boundary: drawing::Boundary::from_pos_size(
Vec2::new(
transform.pos.x + transform.dim.x - thickness - margin,
transform.pos.y + transform.dim.y * (1.0 - info.handle_size.y) * self.data.scrolling.y,
),
Vec2::new(thickness, transform.dim.y * info.handle_size.y),
),
depth: state.depth,
transform: transform.transform,
payload: drawing::PrimitivePayload::Rectangle(rect_params),
});
}
}
fn process_wheel(&mut self, params: &mut EventParams, wheel: &MouseWheelEvent) -> bool {
let (enabled_horiz, enabled_vert) = get_scroll_enabled(params.style);
if !enabled_horiz && !enabled_vert {
return false;
}
let l = params.taffy_layout;
let overflow = Vec2::new(l.scroll_width(), l.scroll_height());
if overflow.x == 0.0 && overflow.y == 0.0 {
return false; // not overflowing
}
let Some(info) = get_scrollbar_info(params.taffy_layout) else {
return false;
};
let step_pixels = 32.0;
if info.handle_size.x < 1.0 && wheel.pos.x != 0.0 {
// Horizontal scrolling
let mult = (1.0 / (l.content_box_width() - info.content_size.x)) * step_pixels;
let new_scroll = (self.data.scrolling.x + wheel.shift.x * mult).clamp(0.0, 1.0);
if self.data.scrolling.x != new_scroll {
self.data.scrolling.x = new_scroll;
*params.needs_redraw = true;
}
}
if info.handle_size.y < 1.0 && wheel.pos.y != 0.0 {
// Vertical scrolling
let mult = (1.0 / (l.content_box_height() - info.content_size.y)) * step_pixels;
let new_scroll = (self.data.scrolling.y + wheel.shift.y * mult).clamp(0.0, 1.0);
if self.data.scrolling.y != new_scroll {
self.data.scrolling.y = new_scroll;
*params.needs_redraw = true;
}
}
true
}
pub fn process_event(
&mut self,
widget_id: WidgetID,
node_id: taffy::NodeId,
event: &Event,
params: &mut EventParams,
) -> EventResult {
let hovered = event.test_mouse_within_transform(params.transform_stack.get());
let mut just_clicked = false;
match &event {
Event::MouseDown(_) => {
if self.data.hovered {
self.data.pressed = true;
}
}
Event::MouseUp(_) => {
if self.data.pressed {
self.data.pressed = false;
just_clicked = self.data.hovered;
}
}
Event::MouseWheel(e) => {
if self.process_wheel(params, e) {
return EventResult::Consumed;
}
}
_ => {}
}
// TODO: simplify this behemoth, I gave up arguing with the compiler
for listener in &self.event_listeners {
match listener {
EventListener::MouseEnter(callback) => {
if hovered && !self.data.hovered {
let mut data = CallbackData {
obj: self.obj.as_mut(),
widget_data: &mut self.data,
widgets: params.widgets,
animations: params.animations,
dirty_nodes: params.dirty_nodes,
widget_id,
node_id,
needs_redraw: false,
};
callback(&mut data);
if data.needs_redraw {
*params.needs_redraw = true;
}
}
}
EventListener::MouseLeave(callback) => {
if !hovered && self.data.hovered {
let mut data = CallbackData {
obj: self.obj.as_mut(),
widget_data: &mut self.data,
widgets: params.widgets,
animations: params.animations,
dirty_nodes: params.dirty_nodes,
widget_id,
node_id,
needs_redraw: false,
};
callback(&mut data);
if data.needs_redraw {
*params.needs_redraw = true;
}
}
}
EventListener::MouseClick(callback) => {
if just_clicked {
let mut data = CallbackData {
obj: self.obj.as_mut(),
widget_data: &mut self.data,
widgets: params.widgets,
animations: params.animations,
dirty_nodes: params.dirty_nodes,
widget_id,
node_id,
needs_redraw: false,
};
callback(&mut data);
if data.needs_redraw {
*params.needs_redraw = true;
}
}
}
}
}
if self.data.hovered != hovered {
self.data.hovered = hovered;
}
EventResult::Pass
}
}

55
wgui/src/widget/rectangle.rs Normal file
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use crate::{
drawing::{self, GradientMode},
widget::util::WLength,
};
use super::{WidgetObj, WidgetState};
#[derive(Default)]
pub struct RectangleParams {
pub color: drawing::Color,
pub color2: drawing::Color,
pub gradient: GradientMode,
pub border: f32,
pub border_color: drawing::Color,
pub round: WLength,
}
pub struct Rectangle {
pub params: RectangleParams,
}
impl Rectangle {
pub fn create(params: RectangleParams) -> anyhow::Result<WidgetState> {
WidgetState::new(Box::new(Rectangle { params }))
}
}
impl WidgetObj for Rectangle {
fn draw(&mut self, state: &mut super::DrawState, _params: &super::DrawParams) {
let boundary = drawing::Boundary::construct(state.transform_stack);
let round_units = match self.params.round {
WLength::Units(units) => units as u8,
WLength::Percent(percent) => {
(f32::min(boundary.size.x, boundary.size.y) * percent / 2.0) as u8
}
};
state.primitives.push(drawing::RenderPrimitive {
boundary,
depth: state.depth,
transform: state.transform_stack.get().transform,
payload: drawing::PrimitivePayload::Rectangle(drawing::Rectangle {
color: self.params.color,
color2: self.params.color2,
gradient: self.params.gradient,
border: self.params.border,
border_color: self.params.border_color,
round_units,
}),
});
}
}

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use std::{cell::RefCell, rc::Rc};
use cosmic_text::{Attrs, Buffer, Color, Shaping, Weight};
use crate::{
drawing::{self},
renderer_vk::text::{
DEFAULT_METRICS, FONT_SYSTEM,
custom_glyph::{CustomGlyph, CustomGlyphData},
},
};
use super::{WidgetObj, WidgetState};
#[derive(Default)]
pub struct SpriteBoxParams {
pub glyph_data: Option<CustomGlyphData>,
}
#[derive(Default)]
pub struct SpriteBox {
params: SpriteBoxParams,
}
impl SpriteBox {
pub fn create(params: SpriteBoxParams) -> anyhow::Result<WidgetState> {
WidgetState::new(Box::new(Self { params }))
}
}
impl WidgetObj for SpriteBox {
fn draw(&mut self, state: &mut super::DrawState, _params: &super::DrawParams) {
let boundary = drawing::Boundary::construct(state.transform_stack);
if let Some(glyph_data) = self.params.glyph_data.as_ref() {
let glyph = CustomGlyph {
data: glyph_data.clone(),
left: 0.0,
top: 0.0,
width: boundary.size.x,
height: boundary.size.y,
color: Some(cosmic_text::Color::rgb(255, 255, 255)),
snap_to_physical_pixel: true,
};
state.primitives.push(drawing::RenderPrimitive {
boundary,
depth: state.depth,
payload: drawing::PrimitivePayload::Sprite(Some(glyph)),
transform: state.transform_stack.get().transform,
});
} else {
// Source not set or not available, display error text
let mut buffer = Buffer::new_empty(DEFAULT_METRICS);
{
let mut font_system = FONT_SYSTEM.lock().unwrap(); // safe unwrap
let mut buffer = buffer.borrow_with(&mut font_system);
let attrs = Attrs::new()
.color(Color::rgb(255, 0, 255))
.weight(Weight::BOLD);
// set text last in order to avoid expensive re-shaping
buffer.set_text("Error", &attrs, Shaping::Basic);
}
state.primitives.push(drawing::RenderPrimitive {
boundary,
depth: state.depth,
payload: drawing::PrimitivePayload::Text(Rc::new(RefCell::new(buffer))),
transform: state.transform_stack.get().transform,
});
};
}
fn measure(
&mut self,
_known_dimensions: taffy::Size<Option<f32>>,
_available_space: taffy::Size<taffy::AvailableSpace>,
) -> taffy::Size<f32> {
taffy::Size::ZERO
}
}

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use std::{cell::RefCell, rc::Rc};
use cosmic_text::{Attrs, Buffer, Metrics, Shaping, Wrap};
use taffy::AvailableSpace;
use crate::{
drawing::{self, Boundary},
renderer_vk::text::{FONT_SYSTEM, TextStyle},
};
use super::{WidgetObj, WidgetState};
#[derive(Default)]
pub struct TextParams {
pub content: String,
pub style: TextStyle,
}
pub struct TextLabel {
params: TextParams,
buffer: Rc<RefCell<Buffer>>,
last_boundary: Boundary,
}
impl TextLabel {
pub fn create(params: TextParams) -> anyhow::Result<WidgetState> {
let metrics = Metrics::from(&params.style);
let attrs = Attrs::from(&params.style);
let wrap = Wrap::from(&params.style);
let mut buffer = Buffer::new_empty(metrics);
{
let mut font_system = FONT_SYSTEM.lock().unwrap(); // safe unwrap
let mut buffer = buffer.borrow_with(&mut font_system);
buffer.set_wrap(wrap);
buffer.set_rich_text(
[(params.content.as_str(), attrs)],
&Attrs::new(),
Shaping::Advanced,
params.style.align.map(|a| a.into()),
);
}
WidgetState::new(Box::new(Self {
params,
buffer: Rc::new(RefCell::new(buffer)),
last_boundary: Boundary::default(),
}))
}
pub fn set_text(&mut self, text: &str) {
self.params.content = String::from(text);
let attrs = Attrs::from(&self.params.style);
let mut font_system = FONT_SYSTEM.lock().unwrap(); // safe unwrap
let mut buffer = self.buffer.borrow_mut();
buffer.set_rich_text(
&mut font_system,
[(self.params.content.as_str(), attrs)],
&Attrs::new(),
Shaping::Advanced,
self.params.style.align.map(|a| a.into()),
);
}
}
impl WidgetObj for TextLabel {
fn draw(&mut self, state: &mut super::DrawState, _params: &super::DrawParams) {
let boundary = drawing::Boundary::construct(state.transform_stack);
if self.last_boundary != boundary {
self.last_boundary = boundary;
let mut font_system = FONT_SYSTEM.lock().unwrap(); // safe unwrap
let mut buffer = self.buffer.borrow_mut();
buffer.set_size(
&mut font_system,
Some(boundary.size.x),
Some(boundary.size.y),
);
}
state.primitives.push(drawing::RenderPrimitive {
boundary,
depth: state.depth,
payload: drawing::PrimitivePayload::Text(self.buffer.clone()),
transform: state.transform_stack.get().transform,
});
}
fn measure(
&mut self,
known_dimensions: taffy::Size<Option<f32>>,
available_space: taffy::Size<taffy::AvailableSpace>,
) -> taffy::Size<f32> {
// Set width constraint
let width_constraint = known_dimensions.width.or(match available_space.width {
AvailableSpace::MinContent => Some(0.0),
AvailableSpace::MaxContent => None,
AvailableSpace::Definite(width) => Some(width),
});
let mut font_system = FONT_SYSTEM.lock().unwrap(); // safe unwrap
let mut buffer = self.buffer.borrow_mut();
buffer.set_size(&mut font_system, width_constraint, None);
// Determine measured size of text
let (width, total_lines) = buffer
.layout_runs()
.fold((0.0, 0usize), |(width, total_lines), run| {
(run.line_w.max(width), total_lines + 1)
});
let height = total_lines as f32 * buffer.metrics().line_height;
taffy::Size { width, height }
}
}

11
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#[derive(Clone, Copy, Debug)]
pub enum WLength {
Units(f32),
Percent(f32), // 0.0 - 1.0
}
impl Default for WLength {
fn default() -> Self {
Self::Units(0.0)
}
}

1
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target

3389
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[package]
name = "uidev-vk"
version = "0.1.0"
edition = "2024"
[dependencies]
anyhow = { workspace = true }
glam = { workspace = true }
log = { workspace = true }
rust-embed = "8.7.2"
tracing-subscriber = { version = "0.3.19", features = ["env-filter"] }
wgui = { path = "../" }
winit = "0.30.10"
vulkano = { workspace = true }
vulkano-shaders = { workspace = true }
[profile.dev]
opt-level = 0
debug = true
strip = "none"
debug-assertions = true
incremental = true

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<path fill="white" d="M11 13H5v-2h6V5h2v6h6v2h-6v6h-2z" />
</svg>
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<path fill="white" d="M6 11a2 2 0 0 1 2 2v4H4a2 2 0 0 1-2-2v-2a2 2 0 0 1 2-2zm-2 2v2h2v-2zm16 0v2h2v2h-2a2 2 0 0 1-2-2v-2a2 2 0 0 1 2-2h2v2zm-8-6v4h2a2 2 0 0 1 2 2v2a2 2 0 0 1-2 2h-2a2 2 0 0 1-2-2V7zm0 8h2v-2h-2z" />
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<svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 24 24">
<path fill="white" fill-rule="evenodd" d="M4.857 3A1.857 1.857 0 0 0 3 4.857v4.286C3 10.169 3.831 11 4.857 11h4.286A1.857 1.857 0 0 0 11 9.143V4.857A1.857 1.857 0 0 0 9.143 3zm10 0A1.857 1.857 0 0 0 13 4.857v4.286c0 1.026.831 1.857 1.857 1.857h4.286A1.857 1.857 0 0 0 21 9.143V4.857A1.857 1.857 0 0 0 19.143 3zm-10 10A1.857 1.857 0 0 0 3 14.857v4.286C3 20.169 3.831 21 4.857 21h4.286A1.857 1.857 0 0 0 11 19.143v-4.286A1.857 1.857 0 0 0 9.143 13zm10 0A1.857 1.857 0 0 0 13 14.857v4.286c0 1.026.831 1.857 1.857 1.857h4.286A1.857 1.857 0 0 0 21 19.143v-4.286A1.857 1.857 0 0 0 19.143 13z" clip-rule="evenodd" />
</svg>
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<svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 24 24">
<path fill="white" d="m9.55 12l7.35 7.35q.375.375.363.875t-.388.875t-.875.375t-.875-.375l-7.7-7.675q-.3-.3-.45-.675t-.15-.75t.15-.75t.45-.675l7.7-7.7q.375-.375.888-.363t.887.388t.375.875t-.375.875z" />
</svg>
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<path fill="white" d="M16 18H8V6h8m.67-2H15V2H9v2H7.33A1.33 1.33 0 0 0 6 5.33v15.34C6 21.4 6.6 22 7.33 22h9.34A1.33 1.33 0 0 0 18 20.67V5.33C18 4.6 17.4 4 16.67 4" />
</svg>
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<path fill="white" d="M16.67 4H15V2H9v2H7.33A1.33 1.33 0 0 0 6 5.33v15.34C6 21.4 6.6 22 7.33 22h9.34A1.33 1.33 0 0 0 18 20.67V5.33C18 4.6 17.4 4 16.67 4" />
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<path fill="white" d="M16 17H8V6h8m.67-2H15V2H9v2H7.33A1.33 1.33 0 0 0 6 5.33v15.34C6 21.4 6.6 22 7.33 22h9.34A1.33 1.33 0 0 0 18 20.67V5.33C18 4.6 17.4 4 16.67 4" />
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<path fill="white" d="M16 15H8V6h8m.67-2H15V2H9v2H7.33A1.33 1.33 0 0 0 6 5.33v15.34C6 21.4 6.6 22 7.33 22h9.34A1.33 1.33 0 0 0 18 20.67V5.33C18 4.6 17.4 4 16.67 4" />
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<path fill="white" d="M16 14H8V6h8m.67-2H15V2H9v2H7.33A1.33 1.33 0 0 0 6 5.33v15.34C6 21.4 6.6 22 7.33 22h9.34A1.33 1.33 0 0 0 18 20.67V5.33C18 4.6 17.4 4 16.67 4" />
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<path fill="white" d="M16 13H8V6h8m.67-2H15V2H9v2H7.33A1.33 1.33 0 0 0 6 5.33v15.34C6 21.4 6.6 22 7.33 22h9.34A1.33 1.33 0 0 0 18 20.67V5.33C18 4.6 17.4 4 16.67 4" />
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<path fill="white" d="M16 12H8V6h8m.67-2H15V2H9v2H7.33A1.33 1.33 0 0 0 6 5.33v15.34C6 21.4 6.6 22 7.33 22h9.34A1.33 1.33 0 0 0 18 20.67V5.33C18 4.6 17.4 4 16.67 4" />
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<path fill="white" d="M16 10H8V6h8m.67-2H15V2H9v2H7.33A1.33 1.33 0 0 0 6 5.33v15.34C6 21.4 6.6 22 7.33 22h9.34A1.33 1.33 0 0 0 18 20.67V5.33C18 4.6 17.4 4 16.67 4" />
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<path fill="white" d="M16 9H8V6h8m.67-2H15V2H9v2H7.33A1.33 1.33 0 0 0 6 5.33v15.34C6 21.4 6.6 22 7.33 22h9.34A1.33 1.33 0 0 0 18 20.67V5.33C18 4.6 17.4 4 16.67 4" />
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<path fill="white" d="M16 8H8V6h8m.67-2H15V2H9v2H7.33A1.33 1.33 0 0 0 6 5.33v15.34C6 21.4 6.6 22 7.33 22h9.34A1.33 1.33 0 0 0 18 20.67V5.33C18 4.6 17.4 4 16.67 4" />
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<path fill="white" d="M23.05 11h-3V4l-5 10h3v8M12 18H4l.05-12h8m.67-2h-1.67V2h-6v2H3.38a1.33 1.33 0 0 0-1.33 1.33v15.34c0 .73.6 1.33 1.33 1.33h9.34c.73 0 1.33-.6 1.33-1.33V5.33A1.33 1.33 0 0 0 12.72 4" />
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<path fill="white" d="M23 11h-3V4l-5 10h3v8M12.67 4H11V2H5v2H3.33A1.33 1.33 0 0 0 2 5.33v15.34C2 21.4 2.6 22 3.33 22h9.34c.73 0 1.33-.6 1.33-1.33V5.33A1.33 1.33 0 0 0 12.67 4" />
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<path fill="white" d="M23.05 11h-3V4l-5 10h3v8m-6-5h-8V6h8m.67-2h-1.67V2h-6v2H3.38a1.33 1.33 0 0 0-1.33 1.33v15.34c0 .73.6 1.33 1.33 1.33h9.34c.73 0 1.33-.6 1.33-1.33V5.33A1.33 1.33 0 0 0 12.72 4" />
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<path fill="white" d="M12 15H4V6h8m.67-2H11V2H5v2H3.33A1.33 1.33 0 0 0 2 5.33v15.34C2 21.4 2.6 22 3.33 22h9.34c.73 0 1.33-.6 1.33-1.33V5.33A1.33 1.33 0 0 0 12.67 4M23 11h-3V4l-5 10h3v8z" />
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<path fill="white" d="M13 4h-2V2H5v2H3c-.6 0-1 .4-1 1v16c0 .6.4 1 1 1h10c.6 0 1-.4 1-1V5c0-.6-.4-1-1-1m-1 10.5H4V6h8zM23 11h-3V4l-5 10h3v8" />
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<path fill="white" d="M23 11h-3V4l-5 10h3v8m-6-9H4V6h8m.67-2H11V2H5v2H3.33A1.33 1.33 0 0 0 2 5.33v15.34C2 21.4 2.6 22 3.33 22h9.34c.73 0 1.33-.6 1.33-1.33V5.33A1.33 1.33 0 0 0 12.67 4" />
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wgui/uidev-vk/assets/dashboard/refresh.svg Normal file
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<svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 24 24">
<path fill="white" d="M12 20q-3.35 0-5.675-2.325T4 12t2.325-5.675T12 4q1.725 0 3.3.712T18 6.75V4h2v7h-7V9h4.2q-.8-1.4-2.187-2.2T12 6Q9.5 6 7.75 7.75T6 12t1.75 4.25T12 18q1.925 0 3.475-1.1T17.65 14h2.1q-.7 2.65-2.85 4.325T12 20" />
</svg>
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