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17 changed files with 31 additions and 789 deletions

1
.envrc
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@ -1 +0,0 @@
use flake .

1
.gitignore vendored
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@ -4,4 +4,3 @@ Cargo.lock
**/*.rs.bk
*.pdb
rustc-ice-*.txt
.direnv

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@ -1,101 +0,0 @@
{
"nodes": {
"fenix": {
"inputs": {
"nixpkgs": [
"nixpkgs"
],
"rust-analyzer-src": "rust-analyzer-src"
},
"locked": {
"lastModified": 1725172314,
"narHash": "sha256-BtLY9lWu/pe6/ImFwuRRRqMwLacY5AZOKA2hUHUQ64k=",
"owner": "nix-community",
"repo": "fenix",
"rev": "28b42d01f549c38bd165296fbcb4fe66d98fc24f",
"type": "github"
},
"original": {
"owner": "nix-community",
"ref": "monthly",
"repo": "fenix",
"type": "github"
}
},
"flake-utils": {
"inputs": {
"systems": "systems"
},
"locked": {
"lastModified": 1710146030,
"narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
"owner": "numtide",
"repo": "flake-utils",
"rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
"type": "github"
},
"original": {
"owner": "numtide",
"repo": "flake-utils",
"type": "github"
}
},
"nixpkgs": {
"locked": {
"lastModified": 1725534445,
"narHash": "sha256-Yd0FK9SkWy+ZPuNqUgmVPXokxDgMJoGuNpMEtkfcf84=",
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "9bb1e7571aadf31ddb4af77fc64b2d59580f9a39",
"type": "github"
},
"original": {
"owner": "NixOS",
"ref": "nixpkgs-unstable",
"repo": "nixpkgs",
"type": "github"
}
},
"root": {
"inputs": {
"fenix": "fenix",
"flake-utils": "flake-utils",
"nixpkgs": "nixpkgs"
}
},
"rust-analyzer-src": {
"flake": false,
"locked": {
"lastModified": 1725630423,
"narHash": "sha256-gNCLk3Zg7JlAwmWbVHTH6f3+iqdeQ4fheOotCZy8x5M=",
"owner": "rust-lang",
"repo": "rust-analyzer",
"rev": "08c7bbc2dbe4dcc8968484f1a0e1e6fe7a1d4f6d",
"type": "github"
},
"original": {
"owner": "rust-lang",
"ref": "nightly",
"repo": "rust-analyzer",
"type": "github"
}
},
"systems": {
"locked": {
"lastModified": 1681028828,
"narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
"owner": "nix-systems",
"repo": "default",
"rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
"type": "github"
},
"original": {
"owner": "nix-systems",
"repo": "default",
"type": "github"
}
}
},
"root": "root",
"version": 7
}

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@ -1,51 +0,0 @@
{
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
flake-utils.url = "github:numtide/flake-utils";
fenix = {
url = "github:nix-community/fenix/monthly";
inputs.nixpkgs.follows = "nixpkgs";
};
};
outputs = { self, nixpkgs, flake-utils, fenix }:
flake-utils.lib.eachDefaultSystem (system: let
pkgs = nixpkgs.legacyPackages.${system};
in {
devShell = pkgs.mkShell.override {
stdenv = if pkgs.stdenv.isLinux then
pkgs.stdenvAdapters.useMoldLinker pkgs.clangStdenv
else
pkgs.clangStdenv;
} rec {
packages = with pkgs; [
(fenix.packages.${system}.complete.withComponents [
"cargo"
"rustc"
"rust-src"
"rustfmt"
"rust-analyzer"
"clippy"
])
pkg-config
cmake
];
buildInputs = with pkgs; [
wayland
xorg.libxcb
libxkbcommon
vulkan-tools
vulkan-headers
vulkan-loader
libGL
xorg.libX11
xorg.libXcursor
xorg.libXi
xorg.libXrandr
glslang
];
LD_LIBRARY_PATH = pkgs.lib.makeLibraryPath buildInputs;
# RUSTFLAGS = "-Zthreads=8"; (causes rustc to ICE)
MANGOHUD_DLSYM = "1"; # mangohud glium fix
};
});
}

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@ -7,10 +7,9 @@ publish = false
[dev-dependencies]
hui = { path = "../hui" }
hui-painter = { path = "../hui-painter" }
hui-glium = { path = "../hui-glium" }
hui-winit = { path = "../hui-winit" }
kubi-logging = { git = "https://github.com/griffi-gh/kubi", rev = "be1e24ba0c9e6d24128e7d0e74bebd8b90c23be7" }
kubi-logging = { git = "https://github.com/griffi-gh/kubi", rev = "c162893fd" }
glium = "0.35"
winit = "0.30"
glam = "0.28"

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@ -53,9 +53,6 @@ pub fn ui<T>(
WindowEvent::CloseRequested => {
window_target.exit();
},
WindowEvent::Resized(size) => {
display.resize((size.width, size.height));
},
WindowEvent::RedrawRequested => {
let mut frame = display.draw();
frame.clear_color_srgb(0.5, 0.5, 0.5, 1.);

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@ -21,4 +21,3 @@ log = "0.4"
rect_packer = "0.2" # TODO: use sth else like `crunch` instead?
hashbrown = "0.14"
nohash-hasher = "0.2"
fontdue = "0.9"

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@ -1,14 +1,11 @@
pub mod paint;
pub mod texture;
pub mod text;
use text::FontManager;
use texture::TextureAtlas;
#[derive(Default)]
pub struct Painter {
pub atlas: TextureAtlas,
pub fonts: FontManager,
atlas: TextureAtlas,
}
impl Painter {
@ -16,19 +13,7 @@ impl Painter {
Self::default()
}
// pub fn atlas(&self) -> &TextureAtlas {
// &self.atlas
// }
// pub fn atlas_mut(&mut self) -> &mut TextureAtlas {
// &mut self.atlas
// }
// pub fn fonts(&self) -> &FontManager {
// &self.fonts
// }
// pub fn fonts_mut(&mut self) -> &mut FontManager {
// &mut self.fonts
// }
pub fn atlas(&self) -> &TextureAtlas {
&self.atlas
}
}

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@ -1,8 +1,4 @@
use glam::Vec2;
use crate::{paint::buffer::PaintBuffer, Painter};
// mod root;
// pub use root::RootCommand;
use crate::paint::buffer::PaintBuffer;
mod transform;
pub use transform::PaintTransform;
@ -14,20 +10,5 @@ mod text;
pub use text::PaintText;
pub trait PaintCommand {
/// Called before actual paint command is executed\
/// Opportunity to pre-cache bitmaps, etc.
///
/// Make sure to propagate this call to children!
#[allow(unused_variables)]
fn pre_paint(&self, ctx: &mut Painter) {}
/// Paint the command into the buffer
///
/// Do not allocate new textures or cache glyphs here, use `pre_paint` instead!\
/// (Doing this WILL lead to atlas corruption flicker for a single frame if it's forced to resize!)
fn paint(&self, ctx: &mut Painter, into: &mut PaintBuffer);
}
pub trait Measurable: PaintCommand {
fn size(&self, ctx: &Painter) -> Vec2;
fn paint(&self, into: &mut PaintBuffer);
}

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@ -1,37 +1,16 @@
use std::num::NonZeroU16;
use glam::{vec2, Vec2, Vec4};
use glam::{Vec2, vec2};
use hui_shared::{color, rect::{Corners, FillColor}};
use crate::{
paint::{
buffer::{PaintBuffer, Vertex},
use crate::paint::{
buffer::PaintBuffer,
command::PaintCommand,
},
texture::TextureHandle,
Painter
};
/// Calculate the number of points based on the maximum corner radius
fn point_count(corners: Corners<f32>) -> NonZeroU16 {
//Increase for higher quality
const VTX_PER_CORER_RADIUS_PIXEL: f32 = 0.5;
NonZeroU16::new(
(corners.max_f32() * VTX_PER_CORER_RADIUS_PIXEL).round() as u16 + 2
).unwrap()
}
pub struct PaintRectangle {
/// Color of the rectangle.
pub color: FillColor,
/// Size of the rectangle.
///
/// (Only different from using transform if the rectangle has border radius.)
pub size: Vec2,
/// Texture to use for the rectangle.
///
/// Invalid handles will be ignored.
pub texture: Option<TextureHandle>,
pub texture: Option<u32>,
/// UV coords inside the texture
pub texture_uv: Corners<Vec2>,
@ -39,20 +18,14 @@ pub struct PaintRectangle {
/// Border width.
pub border_radius: Corners<f32>,
// TODO per-corner border radius point count override
/// Border radius point count.
///
/// - If not set, it will be calculated based on the maximum radius.
/// - If set, it will be used for all corners.
pub border_radius_points_override: Option<NonZeroU16>,
/// Border color.
pub border_radius_points_override: Option<f32>,
}
impl Default for PaintRectangle {
fn default() -> Self {
Self {
color: color::WHITE.into(),
size: Vec2::ONE,
texture: None,
texture_uv: Corners {
top_left: vec2(0., 0.),
@ -66,213 +39,8 @@ impl Default for PaintRectangle {
}
}
impl PaintRectangle {
pub fn from_color(color: impl Into<FillColor>) -> Self {
Self {
color: color.into(),
..Default::default()
}
}
pub fn from_texture(texture: TextureHandle) -> Self {
Self {
texture: Some(texture),
color: color::WHITE.into(),
..Default::default()
}
}
pub fn from_texture_color(texture: TextureHandle, color: impl Into<FillColor>) -> Self {
Self {
texture: Some(texture),
color: color.into(),
..Default::default()
}
}
}
impl PaintCommand for PaintRectangle {
fn paint(&self, ctx: &mut Painter, into: &mut PaintBuffer) {
// If texture is set:
// - Get texture UV
// - Map local UVs to texture UV coords
// Otherwise, if texture handle is not set or invalid, use the bottom left
// corner of the texture which contains a white pixel.
let uvs = self.texture
.map(|handle| ctx.atlas.get_uv(handle))
.flatten()
.map(|global_uv| {
let texture_uv = self.texture_uv;
let texture_uv_is_default =
texture_uv.top_left == vec2(0., 0.) &&
texture_uv.top_right == vec2(1., 0.) &&
texture_uv.bottom_left == vec2(0., 1.) &&
texture_uv.bottom_right == vec2(1., 1.);
if texture_uv_is_default {
global_uv
} else {
let top = global_uv.top_left
.lerp(global_uv.top_right, texture_uv.top_left.x);
let bottom = global_uv.bottom_left
.lerp(global_uv.bottom_right, texture_uv.top_left.x);
let top_left = top
.lerp(bottom, texture_uv.top_left.y);
let top = global_uv.top_left
.lerp(global_uv.top_right, texture_uv.top_right.x);
let bottom = global_uv.bottom_left
.lerp(global_uv.bottom_right, texture_uv.top_right.x);
let top_right = top
.lerp(bottom, texture_uv.top_right.y);
let top = global_uv.top_left
.lerp(global_uv.top_right, texture_uv.bottom_left.x);
let bottom = global_uv.bottom_left
.lerp(global_uv.bottom_right, texture_uv.bottom_left.x);
let bottom_left = top
.lerp(bottom, texture_uv.bottom_left.y);
let top = global_uv.top_left
.lerp(global_uv.top_right, texture_uv.bottom_right.x);
let bottom = global_uv.bottom_left
.lerp(global_uv.bottom_right, texture_uv.bottom_right.x);
let bottom_right = top
.lerp(bottom, texture_uv.bottom_right.y);
Corners { top_left, top_right, bottom_left, bottom_right }
}
})
.unwrap_or(Corners::all(Vec2::ZERO)); // For non-textured rectangles
// Get corner colors
let colors = self.color.corners();
// Get the base index for the vertices
let idx_base = into.vertices.len() as u32;
if self.border_radius.max_f32() == 0. {
// No border radius:
// Draw a simple quad (2 tris)
let indices = Corners {
top_left: idx_base + 0,
top_right: idx_base + 1,
bottom_left: idx_base + 2,
bottom_right: idx_base + 3,
};
into.indices.extend([
indices.top_left, indices.bottom_left, indices.top_right,
indices.top_right, indices.bottom_left, indices.bottom_right,
]);
into.vertices.extend([
Vertex {
position: vec2(0., 0.) * self.size,
uv: uvs.top_left,
color: colors.top_left,
},
Vertex {
position: vec2(1., 0.) * self.size,
uv: uvs.top_right,
color: colors.top_right,
},
Vertex {
position: vec2(0., 1.) * self.size,
uv: uvs.bottom_left,
color: colors.bottom_left,
},
Vertex {
position: vec2(1., 1.) * self.size,
uv: uvs.bottom_right,
color: colors.bottom_right,
},
]);
} else {
// Yes border radius :3
// Draw a rounded rectangle with the given border radius and point count
let point_count = self.border_radius_points_override
.unwrap_or(point_count(self.border_radius))
.get();
// Get vertex for a point in scaled pixel space
let point_impl = |point: Vec2| {
let point_uv = point / self.size;
let color_at_point =
colors.bottom_right * point_uv.x * point_uv.y +
colors.top_right * point_uv.x * (1. - point_uv.y) +
colors.bottom_left * (1. - point_uv.x) * point_uv.y +
colors.top_left * (1. - point_uv.x) * (1. - point_uv.y);
let uv_at_point =
uvs.bottom_right * point_uv.x * point_uv.y +
uvs.top_right * point_uv.x * (1. - point_uv.y) +
uvs.bottom_left * (1. - point_uv.x) * point_uv.y +
uvs.top_left * (1. - point_uv.x) * (1. - point_uv.y);
Vertex {
position: point,
color: color_at_point,
uv: uv_at_point,
}
};
into.vertices.reserve(point_count as usize * 4);
into.indices.reserve((point_count as usize - 1) * 12 * 4);
for i in 0..point_count as u32 {
let frac = i as f32 / (point_count - 1) as f32;
let angle = frac * std::f32::consts::PI * 0.5;
let x = angle.sin();
let y = angle.cos();
into.vertices.extend([
point_impl(vec2(x, 1. - y) * self.border_radius.top_right + vec2(self.size.x - self.border_radius.top_right, 0.)),
point_impl(vec2(x - 1., y) * self.border_radius.bottom_right + vec2(self.size.x, self.size.y - self.border_radius.bottom_right)),
point_impl(vec2(1. - x, y) * self.border_radius.bottom_left + vec2(0., self.size.y - self.border_radius.bottom_left)),
point_impl(vec2(1. - x, 1. - y) * self.border_radius.top_left),
]);
if i > 0 {
// mental illness:
into.indices.extend([
//Top-right corner
idx_base,
idx_base + 1 + (i - 1) * 4,
idx_base + 1 + i * 4,
//Bottom-right corner
idx_base,
idx_base + 1 + (i - 1) * 4 + 1,
idx_base + 1 + i * 4 + 1,
//Bottom-left corner
idx_base,
idx_base + 1 + (i - 1) * 4 + 2,
idx_base + 1 + i * 4 + 2,
//Top-left corner
idx_base,
idx_base + 1 + (i - 1) * 4 + 3,
idx_base + 1 + i * 4 + 3,
]);
}
//Fill in the rest
//mental illness 2:
into.indices.extend([
//Top
idx_base,
idx_base + 4,
idx_base + 1,
//Right?, i think
idx_base,
idx_base + 1 + (point_count as u32 - 1) * 4,
idx_base + 1 + (point_count as u32 - 1) * 4 + 1,
//Left???
idx_base,
idx_base + 1 + (point_count as u32 - 1) * 4 + 2,
idx_base + 1 + (point_count as u32 - 1) * 4 + 3,
//Bottom???
idx_base,
idx_base + 3,
idx_base + 2,
]);
}
unimplemented!("Border radius is not supported yet");
}
fn paint(&self, into: &mut PaintBuffer) {
todo!()
}
}

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@ -1,97 +1,14 @@
use std::{borrow::Cow, sync::Arc};
use fontdue::layout::{self, CoordinateSystem, GlyphRasterConfig, Layout};
use glam::{vec2, Vec2};
use crate::{
paint::{
use crate::paint::{
buffer::PaintBuffer,
command::PaintCommand,
}, text::FontHandle, Painter
};
use super::Measurable;
// TODO align, multichunk etc
pub struct TextChunk {
pub text: Cow<'static, str>,
pub font: FontHandle,
pub size: f32,
}
pub struct PaintText {
// TODO multiple text chunks
pub text: TextChunk,
}
impl PaintText {
pub fn new(text: impl Into<Cow<'static, str>>, font: FontHandle, size: f32) -> Self {
Self {
text: TextChunk {
text: text.into(),
font,
size,
}
}
}
fn build_font_array<'a>(&self, ctx: &'a Painter) -> Vec<&'a fontdue::Font> {
let font = ctx.fonts.get_fontdue_font(self.text.font)
.expect("FontHandle is invalid");
vec![&font]
}
fn build_layout(&self, font_array: &[&fontdue::Font]) -> Layout {
let mut layout = Layout::new(CoordinateSystem::PositiveYDown);
layout.append(
&font_array,
&fontdue::layout::TextStyle::new(
&self.text.text,
self.text.size,
0
)
);
layout
}
//TODO: PaintText command
}
impl PaintCommand for PaintText {
fn pre_paint(&self, ctx: &mut Painter) {
let font_array = self.build_font_array(ctx);
let layout = self.build_layout(&font_array);
for glyph in layout.glyphs() {
ctx.fonts.render_glyph(&mut ctx.atlas, self.text.font, glyph.key);
}
}
fn paint(&self, ctx: &mut Painter, into: &mut PaintBuffer) {
// let font_array = self.build_font_array(ctx);
// let layout = self.build_layout(&font_array);
// for glyph in layout.glyphs() {
// let config = GlyphRasterConfig {
// glyph_index: glyph.font_index
// };
// let glyph_raster = ctx.fonts().render_glyph(atlas, font, config);
// }
fn paint(&self, into: &mut PaintBuffer) {
todo!()
}
}
impl Measurable for PaintText {
fn size(&self, ctx: &Painter) -> Vec2 {
let font_array = self.build_font_array(ctx);
let layout = self.build_layout(&font_array);
let width = layout.lines().map(|lines| {
lines.iter().fold(0.0_f32, |acc, x| {
let glyph = layout.glyphs().get(x.glyph_end).unwrap();
acc.max(glyph.x + glyph.width as f32)
})
}).unwrap_or(0.);
let height = layout.height();
vec2(width, height)
}
}

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@ -1,47 +1,29 @@
use crate::{
Painter,
paint::{
use crate::paint::{
buffer::PaintBuffer,
command::PaintCommand,
},
};
//TODO: use generics instead
pub struct PaintTransform {
pub transform: glam::Affine2,
pub children: Vec<Box<dyn PaintCommand>>,
}
impl PaintCommand for PaintTransform {
fn pre_paint(&self, ctx: &mut Painter) {
for child in &self.children {
child.pre_paint(ctx);
}
}
fn paint(&self, ctx: &mut Painter, into: &mut PaintBuffer) {
fn paint(&self, into: &mut PaintBuffer) {
// remember the starting index
let starting_index = into.vertices.len();
// paint children nodes
for child in &self.children {
child.paint(ctx, into);
}
let mut min_point = glam::Vec2::splat(f32::MAX);
let mut max_point = glam::Vec2::splat(f32::MIN);
for vtx in &into.vertices[starting_index..] {
min_point = min_point.min(vtx.position);
max_point = max_point.max(vtx.position);
child.paint(into);
}
// trans the children in-place
for vtx in &mut into.vertices[starting_index..] {
//HACK: to match the old behavior:
//(shift the origin to the center before transforming)
let offset = (max_point + min_point) / 2.0;
vtx.position -= offset;
//TODO fix for rotation around the center of the object
vtx.position = self.transform.transform_point2(vtx.position);
vtx.position += offset;
}
}
}

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@ -1,69 +0,0 @@
use fontdue::layout::GlyphRasterConfig;
use crate::texture::{TextureAtlas, TextureHandle};
pub(crate) mod ftm;
pub(crate) mod font;
pub use font::FontHandle;
pub struct FontManager {
fonts: font::FontHandleManager,
ftm: ftm::FontTextureManager,
}
impl FontManager {
pub fn new() -> Self {
Self {
fonts: font::FontHandleManager::new(),
ftm: ftm::FontTextureManager::new(),
}
}
/// Add a font to the manager.
///
/// Panics:
/// - If the font data is invalid.
pub fn add_font(&mut self, data: &[u8]) -> FontHandle {
let font = self.fonts.add_font(data);
self.ftm.init_font(font);
font
}
/// Remove and deallocate a font from the manager.
///
/// Panics:
/// - If the font handle is invalid.
pub fn remove_font(&mut self, font: FontHandle, atlas: &mut TextureAtlas) {
self.ftm.drop_font(font, atlas);
self.fonts.remove_font(font);
}
/// Render a glyph and cache it in the texture atlas.
///
/// Panics:
/// - If the font handle is invalid or not initialized.
/// - Fuck around and find out, this api is unstable
pub(crate) fn render_glyph(
&mut self,
atlas: &mut TextureAtlas,
font: FontHandle,
config: GlyphRasterConfig
) -> TextureHandle {
self.ftm.render_glyph(font, &self.fonts, config, atlas)
}
/// Internal API
pub(crate) fn get_fontdue_font(
&self,
handle: FontHandle
) -> Option<&fontdue::Font> {
self.fonts.get_font_repr(handle)
.map(|x| &x.font)
}
}
impl Default for FontManager {
fn default() -> Self {
Self::new()
}
}

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@ -1,52 +0,0 @@
use hashbrown::HashMap;
use nohash_hasher::BuildNoHashHasher;
pub(crate) type FontId = u16;
#[derive(Clone, Copy)]
pub struct FontHandle(pub(crate) FontId);
pub(crate) struct FontRepr {
pub(crate) font: fontdue::Font,
}
pub struct FontHandleManager {
idc: FontId,
fonts: HashMap<FontId, FontRepr,BuildNoHashHasher<FontId>>,
}
impl FontHandleManager {
pub fn new() -> Self {
Self {
idc: 0,
fonts: HashMap::default(),
}
}
/// Add a font to the manager.
///
/// Panics:
/// - If the font data is invalid.
pub fn add_font(&mut self, data: &[u8]) -> FontHandle {
let font = fontdue::Font::from_bytes(data, fontdue::FontSettings::default()).unwrap();
self.fonts.insert_unique_unchecked(self.idc, FontRepr { font });
self.idc += 1;
FontHandle(self.idc - 1)
}
/// Internal function
///
/// Remove and deallocate a font from the manager if the font handle is valid.
///
/// Panics:
/// - If the font handle is invalid.
pub(crate) fn remove_font(&mut self, handle: FontHandle) {
self.fonts.remove(&handle.0).unwrap();
}
/// Get the font handle for the specified font.
pub(crate) fn get_font_repr(&self, handle: FontHandle) -> Option<&FontRepr> {
self.fonts.get(&handle.0)
}
}

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@ -1,94 +0,0 @@
use fontdue::layout::GlyphRasterConfig;
use hashbrown::HashMap;
use nohash_hasher::BuildNoHashHasher;
use crate::texture::{SourceTextureFormat, TextureAtlas, TextureHandle};
use super::font::{FontHandle, FontHandleManager, FontId};
/// Maps to the actual texture handle.
struct RasterizedGlyphInternal {
handle: TextureHandle,
metrics: fontdue::Metrics,
}
/// Map from raster config to glyph cache item.
///
/// Partitioned by font id in FtM :3
type PartitionKey = HashMap<GlyphRasterConfig, RasterizedGlyphInternal>;
/// Manages glyph cache items in a texture atlas.
pub struct FontTextureManager {
partition: HashMap<FontId, PartitionKey, BuildNoHashHasher<FontId>>,
}
impl FontTextureManager {
pub fn new() -> Self {
Self {
partition: HashMap::default(),
}
}
/// Drop cached data for the specified font.
///
/// Panics:
/// - If the font handle is invalid or not initialized.
/// - If any of the cached items are not found in the texture atlas or became invalid.\
/// This may happen if, for example, a different atlas is passed than the one used to allocate the items.
pub(crate) fn drop_font(&mut self, font: FontHandle, atlas: &mut TextureAtlas) {
let dump = self.partition.remove(&font.0).expect("Font handle is invalid");
for (_, item) in dump {
atlas.deallocate(item.handle);
}
}
/// Initialize the partition for the specified font.
///
/// Panics:
/// - If the partition for the font already exists.
pub(crate) fn init_font(&mut self, font: FontHandle) {
assert!(!self.partition.contains_key(&font.0), "Font handle already initialized");
self.partition.insert_unique_unchecked(font.0, HashMap::default());
}
/// Render a glyph and cache it in the texture atlas.
///
/// Panics:
/// - If the font handle is invalid or not initialized.
/// - Fuck around and find out, this api is unstable
pub(crate) fn render_glyph(
&mut self,
font_handle: FontHandle,
fhm_internal: &FontHandleManager,
config: GlyphRasterConfig,
atlas: &mut TextureAtlas
) -> TextureHandle {
// Get partiton
let partition = self.partition.get_mut(&font_handle.0)
.expect("Font handle is not registered in FtM");
// Check if glyph is alr cached
if let Some(item) = partition.get(&config) {
return item.handle;
}
// Get fontdue font from the manager
let font = &fhm_internal.get_font_repr(font_handle)
.expect("Font handle is invalid")
.font;
// Rasterize the font and copy the texture data
let (metrics, data) = font.rasterize_config(config);
let handle = atlas.allocate_with_data(SourceTextureFormat::A8, &data, metrics.width);
// Create a texture item struct and insert it into the partition
let itm = RasterizedGlyphInternal { handle, metrics };
partition.insert_unique_unchecked(config, itm);
return handle;
}
}
impl Default for FontTextureManager {
fn default() -> Self {
Self::new()
}
}

View file

@ -1,5 +1,4 @@
use glam::{ivec2, uvec2, vec2, UVec2, Vec2};
use hui_shared::rect::Corners;
use glam::{UVec2, uvec2, ivec2};
use rect_packer::DensePacker;
use hashbrown::HashMap;
use nohash_hasher::BuildNoHashHasher;
@ -343,22 +342,6 @@ impl TextureAtlas {
handle
}
/// Get uv coordinates for the texture handle.
pub(crate) fn get_uv(&self, handle: TextureHandle) -> Option<Corners<Vec2>> {
let TextureAllocation { offset, size, .. } = self.allocations
.get(&handle.id)?;
let p0x = offset.x as f32 / self.size.x as f32;
let p1x = (offset.x as f32 + size.x as f32) / self.size.x as f32;
let p0y = offset.y as f32 / self.size.y as f32;
let p1y = (offset.y as f32 + size.y as f32) / self.size.y as f32;
Some(Corners {
top_left: vec2(p0x, p0y),
top_right: vec2(p1x, p0y),
bottom_left: vec2(p0x, p1y),
bottom_right: vec2(p1x, p1y),
})
}
}
impl Default for TextureAtlas {

View file

@ -211,7 +211,7 @@ impl UiDrawCall {
//TODO: fix some corners tris being invisible (but it's already close enough lol)
let rounded_corner_verts = corner.point_count.get() as u32;
for i in 0..rounded_corner_verts {
let cratio = i as f32 / (rounded_corner_verts - 1) as f32;
let cratio = i as f32 / rounded_corner_verts as f32;
let angle = cratio * std::f32::consts::PI * 0.5;
let x = angle.sin();
let y = angle.cos();