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- "wasm-bindgen",
- "wasm-bindgen-futures",
- "web-sys",
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diff --git a/vgcodec/Cargo.toml b/vgcodec/Cargo.toml
deleted file mode 100644
index a6162dc..0000000
--- a/vgcodec/Cargo.toml
+++ /dev/null
@@ -1,15 +0,0 @@
-[package]
-name = "vgcodec"
-version = "0.1.0"
-edition = "2021"
-
-[dependencies]
-wgpu = "0.20.0"
-log = "0.4.21"
-env_logger = "0.11.3"
-pollster = "0.3.0"
-bytemuck = { version = "1.15.0", features = ["derive"] }
-futures-intrusive = "0.5.0"
-image = "0.25.1"
-rand = "0.8.5"
-clap = { version = "4.5.4", features = ["derive"] }
diff --git a/vgcodec/src/app.rs b/vgcodec/src/app.rs
deleted file mode 100644
index b51284c..0000000
--- a/vgcodec/src/app.rs
+++ /dev/null
@@ -1,59 +0,0 @@
-use std::sync::Arc;
-
-use wgpu::{Adapter, Device, Extent3d, ImageCopyTexture, Instance, Origin3d, Queue, Texture};
-
-pub struct App {
-    pub instance: Instance,
-    pub device: Device,
-    pub adapter: Adapter,
-    pub queue: Queue,
-}
-
-impl App {
-    pub async fn new() -> Arc<Self> {
-        let instance = wgpu::Instance::new(wgpu::Backends::all());
-        let adapter = instance
-            .request_adapter(&wgpu::RequestAdapterOptions::default())
-            .await
-            .unwrap();
-        let (device, queue) = adapter
-            .request_device(
-                &wgpu::DeviceDescriptor {
-                    label: None,
-                    features: wgpu::Features::empty(),
-                    limits: wgpu::Limits::downlevel_defaults(),
-                },
-                None,
-            )
-            .await
-            .unwrap();
-        Arc::new(Self {
-            adapter,
-            device,
-            instance,
-            queue,
-        })
-    }
-
-    pub fn copy_texture(&self, source: &Texture, destination: &Texture, size: Extent3d) {
-        let mut encoder = self
-            .device
-            .create_command_encoder(&wgpu::CommandEncoderDescriptor { label: None });
-        encoder.copy_texture_to_texture(
-            ImageCopyTexture {
-                aspect: wgpu::TextureAspect::All,
-                mip_level: 0,
-                origin: Origin3d::ZERO,
-                texture: source,
-            },
-            ImageCopyTexture {
-                aspect: wgpu::TextureAspect::All,
-                mip_level: 0,
-                origin: Origin3d::ZERO,
-                texture: destination,
-            },
-            size,
-        );
-        self.queue.submit(Some(encoder.finish()));
-    }
-}
diff --git a/vgcodec/src/approximate.rs b/vgcodec/src/approximate.rs
deleted file mode 100644
index 5bff325..0000000
--- a/vgcodec/src/approximate.rs
+++ /dev/null
@@ -1,175 +0,0 @@
-use crate::{
-    app::App,
-    diff::Differ,
-    export::Exporter,
-    paint::{PaintUniforms, Painter},
-};
-use log::{debug, info, warn};
-use rand::Rng;
-use std::sync::Arc;
-use wgpu::{Extent3d, Texture, TextureUsages};
-
-#[allow(unused)]
-pub struct Approximator {
-    app: Arc<App>,
-    size: Extent3d,
-    differ: Differ,
-    painter: Painter,
-    exporter: Exporter,
-
-    tex_approx: Texture,
-    tex_savestate: Texture,
-    tex_target: Texture,
-}
-
-impl Approximator {
-    pub fn new(app: &Arc<App>, tex_target: Texture, size: Extent3d) -> Self {
-        let App { device, .. } = app.as_ref();
-        let tex_approx = device.create_texture(&wgpu::TextureDescriptor {
-            size,
-            mip_level_count: 1,
-            sample_count: 1,
-            dimension: wgpu::TextureDimension::D2,
-            format: wgpu::TextureFormat::Rgba8Unorm,
-            usage: TextureUsages::COPY_DST
-                | TextureUsages::TEXTURE_BINDING
-                | TextureUsages::STORAGE_BINDING
-                | TextureUsages::COPY_SRC,
-            label: None,
-        });
-        let tex_savestate = device.create_texture(&wgpu::TextureDescriptor {
-            size,
-            mip_level_count: 1,
-            sample_count: 1,
-            dimension: wgpu::TextureDimension::D2,
-            format: wgpu::TextureFormat::Rgba8Unorm,
-            usage: TextureUsages::COPY_DST | TextureUsages::COPY_SRC,
-            label: None,
-        });
-
-        // let initial_init = (0..)
-        // write_texture(queue, &tex_approx, initial_init, size);
-
-        let differ = Differ::new(&app, size, &tex_approx, &tex_target);
-        let painter = Painter::new(&app, size, &tex_approx);
-        let exporter = Exporter::new(&app, size);
-
-        Approximator {
-            app: app.clone(),
-            size,
-            differ,
-            tex_savestate,
-            tex_approx,
-            tex_target,
-            painter,
-            exporter,
-        }
-    }
-
-    pub fn save(&self) {
-        self.app
-            .copy_texture(&self.tex_approx, &self.tex_savestate, self.size);
-    }
-    pub fn restore(&self) {
-        self.app
-            .copy_texture(&self.tex_savestate, &self.tex_approx, self.size);
-    }
-
-    pub async fn run(&mut self, iters: usize, out: &str) -> Vec<PaintUniforms> {
-        let rscale = self.size.width as f32 * 0.1;
-        let mut objects = vec![];
-        for i in 0..iters {
-            let mut p = PaintUniforms {
-                x: rand::thread_rng().gen_range(0.0..self.size.width as f32),
-                y: rand::thread_rng().gen_range(0.0..self.size.height as f32),
-                rx: rscale,
-                ry: rscale,
-                r: rand::thread_rng().gen_range(0.0..1.0),
-                g: rand::thread_rng().gen_range(0.0..1.0),
-                b: rand::thread_rng().gen_range(0.0..1.0),
-            };
-
-            // Find initial diff
-            self.save();
-            self.painter.run(p);
-            let initial_diff = pollster::block_on(self.differ.run());
-            debug!("initial diff={initial_diff}");
-            self.restore();
-
-            let mut cd = initial_diff;
-            self.save();
-            let ok = loop {
-                let mut q = 0;
-                let mut k = |k: usize| {
-                    q += k;
-                    q == 0
-                };
-                if k(self.optimize_param(&mut cd, &mut p, "more red", |p| p.r += 0.1)) {
-                    k(self.optimize_param(&mut cd, &mut p, "less red", |p| p.r -= 0.1));
-                }
-                if k(self.optimize_param(&mut cd, &mut p, "more green", |p| p.g += 0.1)) {
-                    k(self.optimize_param(&mut cd, &mut p, "less green", |p| p.g -= 0.1));
-                }
-                if k(self.optimize_param(&mut cd, &mut p, "more blue", |p| p.b += 0.1)) {
-                    k(self.optimize_param(&mut cd, &mut p, "less blue", |p| p.b -= 0.1));
-                }
-                if k(self.optimize_param(&mut cd, &mut p, "increase rx", |p| p.rx *= 1.5)) {
-                    k(self.optimize_param(&mut cd, &mut p, "decrease rx", |p| p.rx /= 1.5));
-                }
-                if k(self.optimize_param(&mut cd, &mut p, "increase ry", |p| p.ry *= 1.5)) {
-                    k(self.optimize_param(&mut cd, &mut p, "decrease ry", |p| p.ry /= 1.5));
-                }
-                if k(self.optimize_param(&mut cd, &mut p, "move right", |p| p.x += 8.0)) {
-                    k(self.optimize_param(&mut cd, &mut p, "move left", |p| p.x -= 8.0));
-                }
-                if k(self.optimize_param(&mut cd, &mut p, "move down", |p| p.y += 8.0)) {
-                    k(self.optimize_param(&mut cd, &mut p, "move up", |p| p.y -= 8.0));
-                }
-                if p.rx < 5.0 || p.ry < 5.0 {
-                    break false;
-                }
-                if q == 0 {
-                    break true;
-                }
-            };
-            if ok {
-                self.painter.run(p);
-                info!("{i} (improvement={})", initial_diff - cd);
-                objects.push(p);
-            } else {
-                warn!("object aborted");
-            }
-        }
-        self.exporter.run(&self.tex_approx, out).await;
-        return objects;
-    }
-
-    pub fn optimize_param<F>(
-        &self,
-        current_diff: &mut u32,
-        params: &mut PaintUniforms,
-        label: &'static str,
-        f: F,
-    ) -> usize
-    where
-        F: Fn(&mut PaintUniforms) -> (),
-    {
-        let mut p = params.clone();
-        let mut i = 0;
-        loop {
-            f(&mut p);
-            self.painter.run(p);
-            let diff = pollster::block_on(self.differ.run());
-            // pollster::block_on(self.exporter.run(&self.tex_approx, &format!("a/snap.png")));
-            debug!("try {label:?} ({})", diff as i64 - *current_diff as i64);
-            self.restore();
-            if diff >= *current_diff {
-                break i;
-            }
-            debug!("applied {label:?}");
-            i += 1;
-            *current_diff = diff;
-            *params = p
-        }
-    }
-}
diff --git a/vgcodec/src/diff.rs b/vgcodec/src/diff.rs
deleted file mode 100644
index 4a7453c..0000000
--- a/vgcodec/src/diff.rs
+++ /dev/null
@@ -1,122 +0,0 @@
-use std::{borrow::Cow, sync::Arc};
-use wgpu::{util::DeviceExt, BindGroup, Buffer, ComputePipeline, Extent3d, Texture};
-
-use crate::app::App;
-
-pub struct Differ {
-    app: Arc<App>,
-    size: Extent3d,
-
-    pipeline: ComputePipeline,
-    bind_group: BindGroup,
-
-    counter_buffer_size: u64,
-    counter_buffer: Buffer,
-    counter_staging_buffer: Buffer,
-}
-
-impl Differ {
-    pub fn new(app: &Arc<App>, extent: Extent3d, tex_a: &Texture, tex_b: &Texture) -> Self {
-        let App { device, .. } = app.as_ref();
-        let cs_module = device.create_shader_module(wgpu::ShaderModuleDescriptor {
-            label: None,
-            source: wgpu::ShaderSource::Wgsl(Cow::Borrowed(include_str!("diff.wgsl"))),
-        });
-
-        let counter_buffer_size = std::mem::size_of::<u32>() as wgpu::BufferAddress;
-        let counter_staging_buffer = device.create_buffer(&wgpu::BufferDescriptor {
-            label: None,
-            size: counter_buffer_size,
-            usage: wgpu::BufferUsages::MAP_READ | wgpu::BufferUsages::COPY_DST,
-            mapped_at_creation: false,
-        });
-        let counter_buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
-            label: None,
-            contents: bytemuck::cast_slice(&[0u32]),
-            usage: wgpu::BufferUsages::STORAGE
-                | wgpu::BufferUsages::COPY_DST
-                | wgpu::BufferUsages::COPY_SRC,
-        });
-
-        let pipeline = device.create_compute_pipeline(&wgpu::ComputePipelineDescriptor {
-            label: None,
-            layout: None,
-            module: &cs_module,
-            entry_point: "main",
-        });
-
-        let bind_group = device.create_bind_group(&wgpu::BindGroupDescriptor {
-            label: None,
-            layout: &pipeline.get_bind_group_layout(0),
-            entries: &[
-                wgpu::BindGroupEntry {
-                    binding: 0,
-                    resource: wgpu::BindingResource::TextureView(
-                        &tex_a.create_view(&wgpu::TextureViewDescriptor::default()),
-                    ),
-                },
-                wgpu::BindGroupEntry {
-                    binding: 1,
-                    resource: wgpu::BindingResource::TextureView(
-                        &tex_b.create_view(&wgpu::TextureViewDescriptor::default()),
-                    ),
-                },
-                wgpu::BindGroupEntry {
-                    binding: 2,
-                    resource: counter_buffer.as_entire_binding(),
-                },
-            ],
-        });
-        Self {
-            app: app.clone(),
-            size: extent,
-            pipeline,
-            counter_buffer_size,
-            counter_buffer,
-            bind_group,
-            counter_staging_buffer,
-        }
-    }
-
-    pub async fn run(&self) -> u32 {
-        let App { device, queue, .. } = self.app.as_ref();
-
-        queue.write_buffer(&self.counter_buffer, 0, bytemuck::cast_slice(&[0u32]));
-
-        let mut encoder =
-            device.create_command_encoder(&wgpu::CommandEncoderDescriptor { label: None });
-        {
-            let mut cpass =
-                encoder.begin_compute_pass(&wgpu::ComputePassDescriptor { label: None });
-            cpass.set_pipeline(&self.pipeline);
-            cpass.set_bind_group(0, &self.bind_group, &[]);
-            cpass.dispatch_workgroups(self.size.width, self.size.height, 1);
-        }
-
-        encoder.copy_buffer_to_buffer(
-            &self.counter_buffer,
-            0,
-            &self.counter_staging_buffer,
-            0,
-            self.counter_buffer_size,
-        );
-
-        queue.submit(Some(encoder.finish()));
-
-        let buffer_slice = self.counter_staging_buffer.slice(..);
-        let (sender, receiver) = futures_intrusive::channel::shared::oneshot_channel();
-        buffer_slice.map_async(wgpu::MapMode::Read, move |v| {
-            sender.send(v.unwrap()).unwrap()
-        });
-        device.poll(wgpu::Maintain::Wait);
-        receiver.receive().await;
-
-        let data = buffer_slice.get_mapped_range();
-        let result: u32 = bytemuck::cast_slice(&data).to_vec()[0];
-
-        drop(data);
-        self.counter_staging_buffer.unmap();
-
-        result
-    }
-}
diff --git a/vgcodec/src/diff.wgsl b/vgcodec/src/diff.wgsl
deleted file mode 100644
index 82e169b..0000000
--- a/vgcodec/src/diff.wgsl
+++ /dev/null
@@ -1,16 +0,0 @@
-@group(0) @binding(0) 
-var tex_a: texture_2d<f32>;
-@group(0) @binding(1) 
-var tex_b: texture_2d<f32>;
-
-@group(0) @binding(2)
-var<storage, read_write> exp: atomic<u32>;
-
-@compute @workgroup_size(1)
-fn main(@builtin(global_invocation_id) global_id: vec3<u32>) {
-    var col_a = textureLoad(tex_a, vec2(i32(global_id.x), i32(global_id.y)), 0);
-    var col_b = textureLoad(tex_b, vec2(i32(global_id.x), i32(global_id.y)), 0);
-    var diff = length(col_a - col_b);
-    atomicAdd(&exp, u32(diff * 1000.0));
-}
-
diff --git a/vgcodec/src/export.rs b/vgcodec/src/export.rs
deleted file mode 100644
index e020c5d..0000000
--- a/vgcodec/src/export.rs
+++ /dev/null
@@ -1,83 +0,0 @@
-use crate::app::App;
-use image::RgbaImage;
-use std::{num::NonZeroU32, sync::Arc};
-use wgpu::{
-    Buffer, Extent3d, ImageCopyBuffer, ImageCopyTexture, ImageDataLayout, Origin3d, Texture,
-};
-
-pub struct Exporter {
-    app: Arc<App>,
-    size: Extent3d,
-
-    padded_bytes_per_row: u32,
-    export_buffer: Buffer,
-}
-
-impl Exporter {
-    pub fn new(app: &Arc<App>, size: Extent3d) -> Self {
-        let App { device, .. } = app.as_ref();
-
-        let bytes_per_pixel = std::mem::size_of::<u32>() as u32;
-        let unpadded_bytes_per_row = size.width * bytes_per_pixel;
-        let align = wgpu::COPY_BYTES_PER_ROW_ALIGNMENT;
-        let padded_bytes_per_row_padding = (align - unpadded_bytes_per_row % align) % align;
-        let padded_bytes_per_row = unpadded_bytes_per_row + padded_bytes_per_row_padding;
-
-        let export_buffer_size = (padded_bytes_per_row * size.height) as u64;
-        let export_buffer = device.create_buffer(&wgpu::BufferDescriptor {
-            label: None,
-            size: export_buffer_size,
-            usage: wgpu::BufferUsages::MAP_READ | wgpu::BufferUsages::COPY_DST,
-            mapped_at_creation: false,
-        });
-
-        Self {
-            padded_bytes_per_row,
-            app: app.clone(),
-            size,
-            export_buffer,
-        }
-    }
-    pub async fn run(&self, texture: &Texture, save_path: &str) {
-        let App { device, queue, .. } = self.app.as_ref();
-
-        let mut encoder =
-            device.create_command_encoder(&wgpu::CommandEncoderDescriptor { label: None });
-
-        encoder.copy_texture_to_buffer(
-            ImageCopyTexture {
-                texture,
-                aspect: wgpu::TextureAspect::All,
-                mip_level: 0,
-                origin: Origin3d::ZERO,
-            },
-            ImageCopyBuffer {
-                buffer: &self.export_buffer,
-                layout: ImageDataLayout {
-                    offset: 0,
-                    bytes_per_row: Some(NonZeroU32::new(self.padded_bytes_per_row).unwrap()),
-                    rows_per_image: None,
-                },
-            },
-            self.size,
-        );
-
-        queue.submit(Some(encoder.finish()));
-
-        let buffer_slice = self.export_buffer.slice(..);
-        let (sender, receiver) = futures_intrusive::channel::shared::oneshot_channel();
-        buffer_slice.map_async(wgpu::MapMode::Read, move |v| {
-            sender.send(v.unwrap()).unwrap()
-        });
-        device.poll(wgpu::Maintain::Wait);
-        receiver.receive().await;
-
-        let data = buffer_slice.get_mapped_range();
-        let result: Vec<u8> = bytemuck::cast_slice(&data).to_vec();
-        let image = RgbaImage::from_raw(self.size.width, self.size.height, result).unwrap();
-        image.save(save_path).unwrap();
-
-        drop(data);
-        self.export_buffer.unmap();
-    }
-}
diff --git a/vgcodec/src/helper.rs b/vgcodec/src/helper.rs
deleted file mode 100644
index 13f9c1a..0000000
--- a/vgcodec/src/helper.rs
+++ /dev/null
@@ -1,40 +0,0 @@
-use log::info;
-use wgpu::{Extent3d, Queue, Texture};
-
-pub fn write_texture(queue: &Queue, target: &Texture, data: &[u8], size: Extent3d) {
-    info!("uploading texture {size:?} ({} bytes)", data.len());
-
-    let bytes_per_pixel = std::mem::size_of::<u32>() as u32;
-    let unpadded_bytes_per_row = size.width * bytes_per_pixel;
-    let align = wgpu::COPY_BYTES_PER_ROW_ALIGNMENT;
-    let padded_bytes_per_row_padding = (align - unpadded_bytes_per_row % align) % align;
-    let padded_bytes_per_row = unpadded_bytes_per_row + padded_bytes_per_row_padding;
-
-    let mut padded = vec![];
-    for y in 0..(size.height as usize) {
-        for x in 0..(size.width as usize) {
-            for c in 0..4 {
-                padded.push(data[c + x * 4 + y * 4 * size.width as usize])
-            }
-        }
-        for _ in 0..padded_bytes_per_row_padding {
-            padded.push(0)
-        }
-    }
-
-    queue.write_texture(
-        wgpu::ImageCopyTexture {
-            texture: &target,
-            mip_level: 0,
-            origin: wgpu::Origin3d::ZERO,
-            aspect: wgpu::TextureAspect::All,
-        },
-        &padded,
-        wgpu::ImageDataLayout {
-            offset: 0,
-            bytes_per_row: Some(std::num::NonZeroU32::try_from(padded_bytes_per_row).unwrap()),
-            rows_per_image: None,
-        },
-        size,
-    );
-}
diff --git a/vgcodec/src/main.rs b/vgcodec/src/main.rs
deleted file mode 100644
index 9cae234..0000000
--- a/vgcodec/src/main.rs
+++ /dev/null
@@ -1,60 +0,0 @@
-pub mod app;
-pub mod approximate;
-pub mod diff;
-pub mod export;
-pub mod helper;
-pub mod paint;
-
-use app::App;
-use approximate::Approximator;
-use clap::Parser;
-use helper::write_texture;
-use log::info;
-use wgpu::TextureUsages;
-
-fn main() {
-    env_logger::init_from_env("LOG");
-    pollster::block_on(run());
-}
-
-#[derive(Parser)]
-#[clap(about)]
-struct Args {
-    #[clap(short = 'I', long)]
-    iterations: usize,
-    #[clap(short = 'o', long)]
-    outfile: String,
-    infile: String,
-}
-
-async fn run() {
-    let args = Args::parse();
-    let app = app::App::new().await;
-
-    let App { device, queue, .. } = app.as_ref();
-
-    let img_target = image::open(&args.infile).unwrap().into_rgba8();
-
-    let size = wgpu::Extent3d {
-        width: img_target.width(),
-        height: img_target.height(),
-        depth_or_array_layers: 1,
-    };
-
-    let tex_target = device.create_texture(&wgpu::TextureDescriptor {
-        size,
-        mip_level_count: 1,
-        sample_count: 1,
-        dimension: wgpu::TextureDimension::D2,
-        format: wgpu::TextureFormat::Rgba8Unorm,
-        usage: TextureUsages::COPY_DST | TextureUsages::TEXTURE_BINDING | TextureUsages::COPY_SRC,
-        label: None,
-    });
-
-    let img_raw = img_target.into_raw();
-    info!("{}", img_raw.len());
-    write_texture(queue, &tex_target, &img_raw, size);
-
-    let mut a = Approximator::new(&app, tex_target, size);
-    a.run(args.iterations, &args.outfile).await;
-}
diff --git a/vgcodec/src/paint.rs b/vgcodec/src/paint.rs
deleted file mode 100644
index 33ab572..0000000
--- a/vgcodec/src/paint.rs
+++ /dev/null
@@ -1,92 +0,0 @@
-use bytemuck::{Pod, Zeroable};
-use std::{borrow::Cow, sync::Arc};
-use wgpu::{util::DeviceExt, BindGroup, Buffer, ComputePipeline, Extent3d, Texture};
-
-use crate::app::App;
-
-pub struct Painter {
-    app: Arc<App>,
-    size: Extent3d,
-
-    pipeline: ComputePipeline,
-    bind_group: BindGroup,
-
-    uniform_buffer: Buffer,
-}
-
-#[repr(C)]
-#[derive(Pod, Zeroable, Clone, Copy)]
-pub struct PaintUniforms {
-    pub x: f32,
-    pub y: f32,
-    pub rx: f32,
-    pub ry: f32,
-    pub r: f32,
-    pub g: f32,
-    pub b: f32,
-}
-
-impl Painter {
-    pub fn new(app: &Arc<App>, extent: Extent3d, texture: &Texture) -> Self {
-        let App { device, .. } = app.as_ref();
-        let cs_module = device.create_shader_module(wgpu::ShaderModuleDescriptor {
-            label: None,
-            source: wgpu::ShaderSource::Wgsl(Cow::Borrowed(include_str!("paint.wgsl"))),
-        });
-
-        // let uniform_buffer_size = std::mem::size_of::<PaintUniforms>() as wgpu::BufferAddress;
-        let uniform_buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
-            label: None,
-            contents: bytemuck::cast_slice(&[PaintUniforms::zeroed()]),
-            usage: wgpu::BufferUsages::UNIFORM | wgpu::BufferUsages::COPY_DST,
-        });
-
-        let pipeline = device.create_compute_pipeline(&wgpu::ComputePipelineDescriptor {
-            label: None,
-            layout: None,
-            module: &cs_module,
-            entry_point: "main",
-        });
-
-        let bind_group = device.create_bind_group(&wgpu::BindGroupDescriptor {
-            label: None,
-            layout: &pipeline.get_bind_group_layout(0),
-            entries: &[
-                wgpu::BindGroupEntry {
-                    binding: 0,
-                    resource: wgpu::BindingResource::TextureView(
-                        &texture.create_view(&wgpu::TextureViewDescriptor::default()),
-                    ),
-                },
-                wgpu::BindGroupEntry {
-                    binding: 1,
-                    resource: uniform_buffer.as_entire_binding(),
-                },
-            ],
-        });
-        Self {
-            app: app.clone(),
-            size: extent,
-            pipeline,
-            uniform_buffer,
-            bind_group,
-        }
-    }
-
-    pub fn run(&self, params: PaintUniforms) {
-        let App { device, queue, .. } = self.app.as_ref();
-
-        queue.write_buffer(&self.uniform_buffer, 0, bytemuck::cast_slice(&[params]));
-
-        let mut encoder =
-            device.create_command_encoder(&wgpu::CommandEncoderDescriptor { label: None });
-        {
-            let mut cpass =
-                encoder.begin_compute_pass(&wgpu::ComputePassDescriptor { label: None });
-            cpass.set_pipeline(&self.pipeline);
-            cpass.set_bind_group(0, &self.bind_group, &[]);
-            cpass.dispatch_workgroups(self.size.width, self.size.height, 1);
-        }
-        queue.submit(Some(encoder.finish()));
-    }
-}
diff --git a/vgcodec/src/paint.wgsl b/vgcodec/src/paint.wgsl
deleted file mode 100644
index 7006310..0000000
--- a/vgcodec/src/paint.wgsl
+++ /dev/null
@@ -1,22 +0,0 @@
-struct Uniforms {
-    x: f32,
-    y: f32,
-    rx: f32,
-    ry: f32,
-    r: f32,
-    g: f32,
-    b: f32
-};
-
-@group(0) @binding(0) var tex: texture_storage_2d<rgba8unorm, write>;
-@group(0) @binding(1) var<uniform> uniforms: Uniforms;
-
-@compute @workgroup_size(1)
-fn main(@builtin(global_invocation_id) global_id: vec3<u32>) {
-    let coords = global_id.xy;
-    let kc = vec2<f32>(coords) - vec2(uniforms.x, uniforms.y);
-    let d = length(kc / vec2(uniforms.rx, uniforms.ry));
-    if d < 1.0 {
-        textureStore(tex, vec2<i32>(coords), vec4<f32>(vec3<f32>(uniforms.r, uniforms.g, uniforms.b), 1.0));
-    }
-}