feat: add Electrobun WGPU prototype (Dawn GPU on Linux confirmed)

This commit is contained in:
Hibryda 2026-03-20 01:18:19 +01:00
parent 14a3dbd096
commit 1f20fc460e
17 changed files with 233127 additions and 0 deletions

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>CFBundleExecutable</key>
<string>launcher</string>
<key>CFBundleIdentifier</key>
<string>wgpu.electrobun.dev</string>
<key>CFBundleName</key>
<string>wgpu-dev</string>
<key>CFBundleVersion</key>
<string>0.0.1</string>
<key>CFBundlePackageType</key>
<string>APPL</string>
<key>CFBundleIconFile</key>
<string>AppIcon</string>
</dict>
</plist>

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{"defaultRenderer":"native","availableRenderers":["native"],"runtime":{},"bunVersion":"1.3.9"}

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// @bun
var __require = import.meta.require;
// src/launcher/main.ts
import { join, dirname, resolve } from "path";
import { dlopen, suffix, ptr, toArrayBuffer } from "bun:ffi";
import { existsSync, writeFileSync } from "fs";
import { tmpdir } from "os";
var pathToMacOS = dirname(process.argv0);
var libPath = join(pathToMacOS, `libNativeWrapper.${suffix}`);
var absoluteLibPath = resolve(libPath);
function main() {
let channel = "";
let identifier = "";
let name = "";
try {
const pathToLauncherBin2 = process.argv0;
const pathToBinDir2 = dirname(pathToLauncherBin2);
const versionJsonPath = join(pathToBinDir2, "..", "Resources", "version.json");
if (existsSync(versionJsonPath)) {
const versionInfo = __require(versionJsonPath);
if (versionInfo.identifier) {
identifier = versionInfo.identifier;
}
if (versionInfo.name) {
name = versionInfo.name;
}
if (versionInfo.channel) {
channel = versionInfo.channel;
}
console.log(`[LAUNCHER] Loaded identifier: ${identifier}, name: ${name}, channel: ${channel}`);
}
} catch (error) {
console.error(`[LAUNCHER] Warning: Could not read version.json:`, error);
}
if (process.platform === "linux") {
const cefLibs = [
join(pathToMacOS, "libcef.so"),
join(pathToMacOS, "libvk_swiftshader.so")
];
const existingCefLibs = cefLibs.filter((lib2) => existsSync(lib2));
if (existingCefLibs.length > 0 && !process.env["LD_PRELOAD"]) {
console.error(`[LAUNCHER] ERROR: CEF libraries found but LD_PRELOAD not set!`);
console.error(`[LAUNCHER] Please run through the wrapper script: ./run.sh`);
console.error(`[LAUNCHER] Or set: LD_PRELOAD="${existingCefLibs.join(":")}" before starting.`);
const { spawn } = __require("child_process");
const env = { ...process.env, LD_PRELOAD: existingCefLibs.join(":") };
const child = spawn(process.argv[0], process.argv.slice(1), {
env,
stdio: "inherit"
});
child.on("exit", (code) => process.exit(code ?? 1));
return;
}
}
let lib;
try {
if (!process.env["LD_LIBRARY_PATH"]?.includes(".")) {
process.env["LD_LIBRARY_PATH"] = `.${process.env["LD_LIBRARY_PATH"] ? ":" + process.env["LD_LIBRARY_PATH"] : ""}`;
}
lib = dlopen(libPath, {
startEventLoop: {
args: ["cstring", "cstring", "cstring"],
returns: "void"
},
forceExit: {
args: ["i32"],
returns: "void"
}
});
} catch (error) {
console.error(`[LAUNCHER] Failed to load library: ${error.message}`);
try {
lib = dlopen(absoluteLibPath, {
startEventLoop: {
args: ["cstring", "cstring", "cstring"],
returns: "void"
},
forceExit: {
args: ["i32"],
returns: "void"
}
});
} catch (absError) {
console.error(`[LAUNCHER] Library loading failed. Try running: ldd ${libPath}`);
throw error;
}
}
const pathToLauncherBin = process.argv0;
const pathToBinDir = dirname(pathToLauncherBin);
const resourcesDir = join(pathToBinDir, "..", "Resources");
const asarPath = join(resourcesDir, "app.asar");
const appFolderPath = join(resourcesDir, "app");
let appEntrypointPath;
if (existsSync(asarPath)) {
console.log(`[LAUNCHER] Loading app code from ASAR: ${asarPath}`);
let asarLibPath;
let asarLib;
if (process.platform === "win32") {
asarLibPath = libPath;
console.log(`[LAUNCHER] Using native wrapper's ASAR reader: ${asarLibPath}`);
} else {
asarLibPath = join(pathToMacOS, `libasar.${suffix}`);
}
try {
asarLib = dlopen(asarLibPath, {
asar_open: { args: ["cstring"], returns: "ptr" },
asar_read_file: { args: ["ptr", "cstring", "ptr"], returns: "ptr" },
asar_free_buffer: { args: ["ptr", "u64"], returns: "void" },
asar_close: { args: ["ptr"], returns: "void" }
});
} catch (error) {
console.error(`[LAUNCHER] Failed to load ASAR library: ${error.message}`);
throw error;
}
const asarArchive = asarLib.symbols.asar_open(ptr(new Uint8Array(Buffer.from(asarPath + "\x00", "utf8"))));
if (!asarArchive || asarArchive === 0n) {
console.error(`[LAUNCHER] Failed to open ASAR archive at: ${asarPath}`);
throw new Error("Failed to open ASAR archive");
}
const filePath = "bun/index.js";
const sizeBuffer = new BigUint64Array(1);
const fileDataPtr = asarLib.symbols.asar_read_file(asarArchive, ptr(new Uint8Array(Buffer.from(filePath + "\x00", "utf8"))), ptr(sizeBuffer));
if (!fileDataPtr || fileDataPtr === 0n) {
console.error(`[LAUNCHER] Failed to read ${filePath} from ASAR`);
asarLib.symbols.asar_close(asarArchive);
throw new Error(`Failed to read ${filePath} from ASAR`);
}
const fileSize = Number(sizeBuffer[0]);
console.log(`[LAUNCHER] Read ${fileSize} bytes from ASAR for ${filePath}`);
const arrayBuffer = toArrayBuffer(fileDataPtr, 0, fileSize);
const fileData = Buffer.from(arrayBuffer);
const systemTmpDir = tmpdir();
const randomFileName = `electrobun-${Date.now()}-${Math.random().toString(36).substring(7)}.js`;
appEntrypointPath = join(systemTmpDir, randomFileName);
const wrappedFileData = `
// Auto-delete temp file after Worker loads it
const __tempFilePath = "${appEntrypointPath}";
setTimeout(() => {
try {
require("fs").unlinkSync(__tempFilePath);
console.log("[LAUNCHER] Deleted temp file:", __tempFilePath);
} catch (error) {
console.warn("[LAUNCHER] Failed to delete temp file:", error.message);
}
}, 100);
${fileData.toString("utf8")}
`;
writeFileSync(appEntrypointPath, wrappedFileData);
console.log(`[LAUNCHER] Wrote app entrypoint to: ${appEntrypointPath}`);
asarLib.symbols.asar_free_buffer(fileDataPtr, BigInt(fileSize));
asarLib.symbols.asar_close(asarArchive);
} else {
console.log(`[LAUNCHER] Loading app code from flat files`);
appEntrypointPath = join(appFolderPath, "bun", "index.js");
}
process.on("SIGINT", () => {});
process.on("SIGTERM", () => {});
new Worker(appEntrypointPath, {});
lib.symbols.startEventLoop(ptr(new Uint8Array(Buffer.from(identifier + "\x00", "utf8"))), ptr(new Uint8Array(Buffer.from(name + "\x00", "utf8"))), ptr(new Uint8Array(Buffer.from(channel + "\x00", "utf8"))));
lib.symbols.forceExit(0);
}
main();

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{"version":"0.0.1","hash":"dev","channel":"dev","baseUrl":"","name":"wgpu-dev","identifier":"wgpu.electrobun.dev"}

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ui-electrobun/bun.lock Normal file
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{
"lockfileVersion": 1,
"configVersion": 1,
"workspaces": {
"": {
"name": "electrobun-wgpu",
"dependencies": {
"electrobun": "latest",
},
"devDependencies": {
"@types/bun": "latest",
"typescript": "^5.7.2",
},
},
},
"packages": {
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"typescript": ["typescript@5.9.3", "", { "bin": { "tsc": "bin/tsc", "tsserver": "bin/tsserver" } }, "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw=="],
"undici-types": ["undici-types@7.18.2", "", {}, "sha512-AsuCzffGHJybSaRrmr5eHr81mwJU3kjw6M+uprWvCXiNeN9SOGwQ3Jn8jb8m3Z6izVgknn1R0FTCEAP2QrLY/w=="],
"which": ["which@2.0.2", "", { "dependencies": { "isexe": "^2.0.0" }, "bin": { "node-which": "./bin/node-which" } }, "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA=="],
"png-to-ico/@types/node": ["@types/node@17.0.45", "", {}, "sha512-w+tIMs3rq2afQdsPJlODhoUEKzFP1ayaoyl1CcnwtIlsVe7K7bA1NGm4s3PraqTLlXnbIN84zuBlxBWo1u9BLw=="],
}
}

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import type { ElectrobunConfig } from "electrobun";
export default {
app: {
name: "wgpu",
identifier: "wgpu.electrobun.dev",
version: "0.0.1",
},
build: {
bun: {
entrypoint: "src/bun/index.ts",
},
mac: {
bundleCEF: false,
bundleWGPU: true,
},
linux: {
bundleCEF: false,
bundleWGPU: true,
},
win: {
bundleCEF: false,
bundleWGPU: true,
},
},
} satisfies ElectrobunConfig;

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{
"name": "electrobun-wgpu",
"version": "1.0.0",
"type": "module",
"description": "A minimal WebGPU shader demo",
"scripts": {
"start": "electrobun dev",
"dev": "electrobun dev --watch",
"build:canary": "electrobun build --env=canary"
},
"dependencies": {
"electrobun": "latest"
},
"devDependencies": {
"@types/bun": "latest",
"typescript": "^5.7.2"
}
}

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import { GpuWindow, Screen, WGPU, WGPUBridge } from "electrobun/bun";
import { CString, ptr, toArrayBuffer } from "bun:ffi";
const WGPUNative = WGPU.native;
const WGPU_STRLEN = 0xffffffffffffffffn;
const WGPU_DEPTH_SLICE_UNDEFINED = 0xffffffff;
const WGPUTextureUsage_RenderAttachment = 0x0000000000000010n;
const WGPUBufferUsage_Vertex = 0x0000000000000020n;
const WGPUBufferUsage_CopyDst = 0x0000000000000008n;
const WGPUVertexFormat_Float32 = 0x0000001c;
const WGPUVertexFormat_Float32x2 = 0x0000001d;
const WGPUVertexFormat_Float32x4 = 0x0000001f;
const WGPUVertexStepMode_Vertex = 0x00000001;
const WGPUPrimitiveTopology_TriangleList = 0x00000004;
const WGPUFrontFace_CCW = 0x00000001;
const WGPUCullMode_None = 0x00000001;
const WGPUPresentMode_Fifo = 0x00000001;
const KEEPALIVE: any[] = [];
function writePtr(view: DataView, offset: number, value: number | bigint | null) {
view.setBigUint64(offset, BigInt(value ?? 0), true);
}
function writeU32(view: DataView, offset: number, value: number) {
view.setUint32(offset, value >>> 0, true);
}
function writeU64(view: DataView, offset: number, value: bigint) {
view.setBigUint64(offset, value, true);
}
function makeSurfaceConfiguration(
devicePtr: number,
width: number,
height: number,
format: number,
) {
const buffer = new ArrayBuffer(64);
const view = new DataView(buffer);
writePtr(view, 0, 0);
writePtr(view, 8, devicePtr);
writeU32(view, 16, format);
writeU32(view, 20, 0);
writeU64(view, 24, WGPUTextureUsage_RenderAttachment);
writeU32(view, 32, width);
writeU32(view, 36, height);
writeU64(view, 40, 0n);
writePtr(view, 48, 0);
writeU32(view, 56, 1);
writeU32(view, 60, WGPUPresentMode_Fifo);
return { buffer, ptr: ptr(buffer) };
}
function makeShaderSourceWGSL(codePtr: number) {
const buffer = new ArrayBuffer(32);
const view = new DataView(buffer);
writePtr(view, 0, 0);
writeU32(view, 8, 0x00000002);
writeU32(view, 12, 0);
writePtr(view, 16, codePtr);
writeU64(view, 24, WGPU_STRLEN);
return { buffer, ptr: ptr(buffer) };
}
function makeShaderModuleDescriptor(nextInChainPtr: number) {
const buffer = new ArrayBuffer(24);
const view = new DataView(buffer);
writePtr(view, 0, nextInChainPtr);
writePtr(view, 8, 0);
writeU64(view, 16, 0n);
return { buffer, ptr: ptr(buffer) };
}
function makeVertexAttribute(offset: number, shaderLocation: number, format: number) {
const buffer = new ArrayBuffer(32);
const view = new DataView(buffer);
writePtr(view, 0, 0);
writeU32(view, 8, format);
writeU32(view, 12, 0);
writeU64(view, 16, BigInt(offset));
writeU32(view, 24, shaderLocation);
writeU32(view, 28, 0);
return { buffer, ptr: ptr(buffer) };
}
function makeVertexBufferLayout(
attributePtr: number,
attributeCount: number,
stride: number,
) {
const buffer = new ArrayBuffer(40);
const view = new DataView(buffer);
writePtr(view, 0, 0);
writeU32(view, 8, WGPUVertexStepMode_Vertex);
writeU32(view, 12, 0);
writeU64(view, 16, BigInt(stride));
writeU64(view, 24, BigInt(attributeCount));
writePtr(view, 32, attributePtr);
return { buffer, ptr: ptr(buffer) };
}
function makeColorTargetState(format: number) {
const buffer = new ArrayBuffer(32);
const view = new DataView(buffer);
writePtr(view, 0, 0);
writeU32(view, 8, format);
writeU32(view, 12, 0);
writePtr(view, 16, 0);
writeU64(view, 24, 0x0fn);
return { buffer, ptr: ptr(buffer) };
}
function makeVertexState(
modulePtr: number,
entryPointPtr: number,
bufferLayoutPtr: number,
) {
const buffer = new ArrayBuffer(64);
const view = new DataView(buffer);
writePtr(view, 0, 0);
writePtr(view, 8, modulePtr);
writePtr(view, 16, entryPointPtr);
writeU64(view, 24, WGPU_STRLEN);
writeU64(view, 32, 0n);
writePtr(view, 40, 0);
writeU64(view, 48, 1n);
writePtr(view, 56, bufferLayoutPtr);
return { buffer, ptr: ptr(buffer) };
}
function makeFragmentState(
modulePtr: number,
entryPointPtr: number,
targetPtr: number,
) {
const buffer = new ArrayBuffer(64);
const view = new DataView(buffer);
writePtr(view, 0, 0);
writePtr(view, 8, modulePtr);
writePtr(view, 16, entryPointPtr);
writeU64(view, 24, WGPU_STRLEN);
writeU64(view, 32, 0n);
writePtr(view, 40, 0);
writeU64(view, 48, 1n);
writePtr(view, 56, targetPtr);
return { buffer, ptr: ptr(buffer) };
}
function makePrimitiveState() {
const buffer = new ArrayBuffer(32);
const view = new DataView(buffer);
writePtr(view, 0, 0);
writeU32(view, 8, WGPUPrimitiveTopology_TriangleList);
writeU32(view, 12, 0);
writeU32(view, 16, WGPUFrontFace_CCW);
writeU32(view, 20, WGPUCullMode_None);
writeU32(view, 24, 0);
writeU32(view, 28, 0);
return { buffer, ptr: ptr(buffer) };
}
function makeMultisampleState() {
const buffer = new ArrayBuffer(24);
const view = new DataView(buffer);
writePtr(view, 0, 0);
writeU32(view, 8, 1);
writeU32(view, 12, 0xffffffff);
writeU32(view, 16, 0);
writeU32(view, 20, 0);
return { buffer, ptr: ptr(buffer) };
}
function makeRenderPipelineDescriptor(
vertexStatePtr: number,
primitiveStatePtr: number,
multisampleStatePtr: number,
fragmentStatePtr: number,
) {
const buffer = new ArrayBuffer(168);
const view = new DataView(buffer);
writePtr(view, 0, 0);
writePtr(view, 8, 0);
writeU64(view, 16, 0n);
writePtr(view, 24, 0);
new Uint8Array(buffer, 32, 64).set(new Uint8Array(vertexStatePtr.buffer));
new Uint8Array(buffer, 96, 32).set(new Uint8Array(primitiveStatePtr.buffer));
writePtr(view, 128, 0);
new Uint8Array(buffer, 136, 24).set(new Uint8Array(multisampleStatePtr.buffer));
writePtr(view, 160, fragmentStatePtr.ptr as unknown as number);
return { buffer, ptr: ptr(buffer) };
}
function makeBufferDescriptor(size: number) {
const buffer = new ArrayBuffer(48);
const view = new DataView(buffer);
writePtr(view, 0, 0);
writePtr(view, 8, 0);
writeU64(view, 16, 0n);
writeU64(view, 24, WGPUBufferUsage_Vertex | WGPUBufferUsage_CopyDst);
writeU64(view, 32, BigInt(size));
writeU32(view, 40, 0);
writeU32(view, 44, 0);
return { buffer, ptr: ptr(buffer) };
}
function makeCommandEncoderDescriptor() {
const buffer = new ArrayBuffer(24);
const view = new DataView(buffer);
writePtr(view, 0, 0);
writePtr(view, 8, 0);
writeU64(view, 16, 0n);
return { buffer, ptr: ptr(buffer) };
}
function makeSurfaceTexture() {
const buffer = new ArrayBuffer(24);
return { buffer, view: new DataView(buffer), ptr: ptr(buffer) };
}
function makeRenderPassColorAttachment(viewPtr: number, clear: { r: number; g: number; b: number; a: number }) {
const buffer = new ArrayBuffer(72);
const view = new DataView(buffer);
writePtr(view, 0, 0);
writePtr(view, 8, viewPtr);
writeU32(view, 16, WGPU_DEPTH_SLICE_UNDEFINED);
writeU32(view, 20, 0);
writePtr(view, 24, 0);
writeU32(view, 32, 2);
writeU32(view, 36, 1);
view.setFloat64(40, clear.r, true);
view.setFloat64(48, clear.g, true);
view.setFloat64(56, clear.b, true);
view.setFloat64(64, clear.a, true);
return { buffer, ptr: ptr(buffer) };
}
function makeRenderPassDescriptor(colorAttachmentPtr: number) {
const buffer = new ArrayBuffer(64);
const view = new DataView(buffer);
writePtr(view, 0, 0);
writePtr(view, 8, 0);
writeU64(view, 16, 0n);
writeU64(view, 24, 1n);
writePtr(view, 32, colorAttachmentPtr);
writePtr(view, 40, 0);
writePtr(view, 48, 0);
writePtr(view, 56, 0);
return { buffer, ptr: ptr(buffer) };
}
function makeCommandBufferArray(cmdPtr: number) {
const buffer = new BigUint64Array([BigInt(cmdPtr)]);
return { buffer, ptr: ptr(buffer) };
}
const size = 640;
const display = Screen.getPrimaryDisplay();
const workArea = display.workArea;
const x = workArea.x + Math.floor((workArea.width - size) / 2);
const y = workArea.y + Math.floor((workArea.height - size) / 2);
const win = new GpuWindow({
title: "WGPU Shader",
frame: { width: size, height: size, x, y },
titleBarStyle: "default",
transparent: false,
});
if (!WGPUNative.available) {
throw new Error("WGPU not available for wgpu");
}
const instance = WGPUNative.symbols.wgpuCreateInstance(0);
const surface = WGPUBridge.createSurfaceForView(
instance as number,
win.wgpuView.ptr as number,
);
const adapterDevice = new BigUint64Array(2);
WGPUBridge.createAdapterDeviceMainThread(
instance as number,
surface as number,
ptr(adapterDevice),
);
const adapter = Number(adapterDevice[0]);
const device = Number(adapterDevice[1]);
if (!adapter || !device) {
throw new Error("Failed to get WGPU adapter/device");
}
const queue = WGPUNative.symbols.wgpuDeviceGetQueue(device);
// Query the surface capabilities to get a supported texture format
const capsBuffer = new ArrayBuffer(64);
const capsView = new DataView(capsBuffer);
WGPUNative.symbols.wgpuSurfaceGetCapabilities(
surface,
adapter,
ptr(capsBuffer),
);
const formatCount = Number(capsView.getBigUint64(16, true));
const formatPtr = Number(capsView.getBigUint64(24, true));
let surfaceFormat = 0x00000017; // BGRA8Unorm fallback
if (formatCount && formatPtr) {
const formats = new Uint32Array(toArrayBuffer(formatPtr, 0, formatCount * 4));
if (formats.length) surfaceFormat = formats[0]!;
}
const surfaceConfig = makeSurfaceConfiguration(
device,
size,
size,
surfaceFormat,
);
WGPUBridge.surfaceConfigure(surface as number, surfaceConfig.ptr as number);
const shaderText = `
struct VSOut {
@builtin(position) position : vec4<f32>,
@location(0) uv : vec2<f32>,
@location(1) time : f32,
@location(2) resolution : vec2<f32>,
@location(3) mouse : vec4<f32>,
};
@vertex
fn vs_main(
@location(0) position: vec2<f32>,
@location(1) time: f32,
@location(2) resolution: vec2<f32>,
@location(3) mouse: vec4<f32>
) -> VSOut {
var out: VSOut;
out.position = vec4<f32>(position, 0.0, 1.0);
out.uv = position;
out.time = time;
out.resolution = resolution;
out.mouse = mouse;
return out;
}
@fragment
fn fs_main(
@location(0) uv: vec2<f32>,
@location(1) time: f32,
@location(2) resolution: vec2<f32>,
@location(3) mouse: vec4<f32>
) -> @location(0) vec4<f32> {
let fragCoord = (uv * 0.5 + vec2<f32>(0.5)) * resolution;
let m = (mouse.xy / max(resolution, vec2<f32>(1.0))) * 2.0 - vec2<f32>(1.0);
let loopMax: i32 = select(32, 64, mouse.z > 0.5);
var o = vec4<f32>(0.0);
var i: f32 = 0.0;
var d: f32 = 0.0;
var c: f32 = 0.0;
var s: f32 = 0.0;
var q = vec3<f32>(0.0);
var p = vec3<f32>(0.0);
let r = vec3<f32>(resolution, 0.0);
var dir = normalize(vec3<f32>((fragCoord + fragCoord - r.xy) / r.y, 1.0));
dir.x = dir.x + m.x * 0.35;
dir.y = dir.y + -m.y * 0.35;
for (var iter: i32 = 0; iter < loopMax; iter = iter + 1) {
i = f32(iter + 1);
p = dir * d;
p.z = p.z + time * 4.0;
q = p;
s = 0.0;
c = 20.0;
loop {
if (c <= 0.2) { break; }
let m = mat2x2<f32>(
vec2<f32>(cos(c / 30.0 + 0.0), cos(c / 30.0 + 33.0)),
vec2<f32>(cos(c / 30.0 + 11.0), cos(c / 30.0 + 0.0))
);
let xz = m * vec2<f32>(p.x, p.z);
p.x = xz.x;
p.z = xz.y;
p = abs(fract(p / c) * c - vec3<f32>(c * 0.5)) - vec3<f32>(c * 0.2);
s = max(
9.0 + 3.0 * sin(q.z * 0.05) - abs(q.x),
max(s, min(p.x, min(p.y, p.z)))
);
p = q;
c = c * 0.5;
}
let sinp = sin(p * 12.0);
let dotv = dot(sinp, vec3<f32>(0.1, 0.1, 0.1));
s = min(s, p.y + 8.0 + dotv);
d = d + s;
let add = i / max(s, 0.001);
o = o + vec4<f32>(add, add, add, add);
}
let denom = max(d, 0.000001);
o = tanh(o / denom / 30000.0);
return vec4<f32>(o.xyz, 1.0);
}
`;
const shaderBytes = new TextEncoder().encode(shaderText + "\0");
const shaderBuf = new Uint8Array(shaderBytes);
KEEPALIVE.push(shaderBuf);
const shaderPtr = ptr(shaderBuf);
const shaderSource = makeShaderSourceWGSL(shaderPtr);
const shaderDesc = makeShaderModuleDescriptor(shaderSource.ptr as number);
const shaderModule = WGPUNative.symbols.wgpuDeviceCreateShaderModule(device, shaderDesc.ptr as number);
const entryPoint = new CString("vs_main");
const fragEntryPoint = new CString("fs_main");
KEEPALIVE.push(entryPoint, fragEntryPoint);
const posAttr = makeVertexAttribute(0, 0, WGPUVertexFormat_Float32x2);
const timeAttr = makeVertexAttribute(8, 1, WGPUVertexFormat_Float32);
const resAttr = makeVertexAttribute(12, 2, WGPUVertexFormat_Float32x2);
const mouseAttr = makeVertexAttribute(20, 3, WGPUVertexFormat_Float32x4);
const attrBuf = new ArrayBuffer(32 * 4);
new Uint8Array(attrBuf, 0, 32).set(new Uint8Array(posAttr.buffer));
new Uint8Array(attrBuf, 32, 32).set(new Uint8Array(timeAttr.buffer));
new Uint8Array(attrBuf, 64, 32).set(new Uint8Array(resAttr.buffer));
new Uint8Array(attrBuf, 96, 32).set(new Uint8Array(mouseAttr.buffer));
const attrPtr = ptr(attrBuf);
KEEPALIVE.push(attrBuf);
const vertexLayout = makeVertexBufferLayout(attrPtr as number, 4, 36);
const vertexState = makeVertexState(shaderModule, entryPoint.ptr, vertexLayout.ptr as number);
const colorTarget = makeColorTargetState(surfaceFormat);
const fragmentState = makeFragmentState(shaderModule, fragEntryPoint.ptr, colorTarget.ptr as number);
const primitiveState = makePrimitiveState();
const multisampleState = makeMultisampleState();
const pipelineDesc = makeRenderPipelineDescriptor(
vertexState,
primitiveState,
multisampleState,
fragmentState,
);
const pipeline = WGPUNative.symbols.wgpuDeviceCreateRenderPipeline(device, pipelineDesc.ptr as number);
const vertexCount = 3;
const bufferDesc = makeBufferDescriptor(vertexCount * 9 * 4);
const vertexBuffer = WGPUNative.symbols.wgpuDeviceCreateBuffer(device, bufferDesc.ptr as number);
const encoderDesc = makeCommandEncoderDescriptor();
let lastLeftDown = false;
let qualityBoost = false;
let clickX = 0;
let clickY = 0;
function renderFrame() {
const sizeNow = win.getSize();
const t = performance.now() * 0.001;
const positions = [-1, -1, 3, -1, -1, 3];
const frame = win.getFrame();
const cursor = Screen.getCursorScreenPoint();
const rawX = cursor.x - frame.x;
const rawY = cursor.y - frame.y;
const mx = Math.max(0, Math.min(frame.width, rawX));
const my = Math.max(0, Math.min(frame.height, rawY));
const buttons = Screen.getMouseButtons();
const leftDown = (buttons & 1n) === 1n;
if (leftDown && !lastLeftDown) {
qualityBoost = !qualityBoost;
clickX = mx;
clickY = my;
}
lastLeftDown = leftDown;
const packed = new Float32Array(vertexCount * 9);
for (let i = 0; i < vertexCount; i += 1) {
const idx = i * 9;
packed[idx] = positions[i * 2]!;
packed[idx + 1] = positions[i * 2 + 1]!;
packed[idx + 2] = t;
packed[idx + 3] = sizeNow.width;
packed[idx + 4] = sizeNow.height;
packed[idx + 5] = mx;
packed[idx + 6] = my;
packed[idx + 7] = qualityBoost ? clickX : 0;
packed[idx + 8] = qualityBoost ? clickY : 0;
}
WGPUNative.symbols.wgpuQueueWriteBuffer(
queue,
vertexBuffer,
0,
ptr(packed),
packed.byteLength,
);
WGPUNative.symbols.wgpuInstanceProcessEvents(instance);
const surfaceTexture = makeSurfaceTexture();
WGPUBridge.surfaceGetCurrentTexture(surface as number, surfaceTexture.ptr as number);
const status = surfaceTexture.view.getUint32(16, true);
if (status !== 1 && status !== 2) return;
const texPtr = Number(surfaceTexture.view.getBigUint64(8, true));
if (!texPtr) return;
const textureView = WGPUNative.symbols.wgpuTextureCreateView(texPtr, 0);
if (!textureView) return;
const colorAttachment = makeRenderPassColorAttachment(textureView, {
r: 0.05,
g: 0.05,
b: 0.1,
a: 1.0,
});
const renderPassDesc = makeRenderPassDescriptor(colorAttachment.ptr as number);
const encoder = WGPUNative.symbols.wgpuDeviceCreateCommandEncoder(device, encoderDesc.ptr as number);
const pass = WGPUNative.symbols.wgpuCommandEncoderBeginRenderPass(encoder, renderPassDesc.ptr as number);
WGPUNative.symbols.wgpuRenderPassEncoderSetPipeline(pass, pipeline);
WGPUNative.symbols.wgpuRenderPassEncoderSetVertexBuffer(pass, 0, vertexBuffer, 0, packed.byteLength);
WGPUNative.symbols.wgpuRenderPassEncoderDraw(pass, vertexCount, 1, 0, 0);
WGPUNative.symbols.wgpuRenderPassEncoderEnd(pass);
const commandBuffer = WGPUNative.symbols.wgpuCommandEncoderFinish(encoder, 0);
const commandArray = makeCommandBufferArray(commandBuffer);
WGPUNative.symbols.wgpuQueueSubmit(queue, 1, commandArray.ptr as number);
WGPUBridge.surfacePresent(surface as number);
WGPUNative.symbols.wgpuTextureViewRelease(textureView);
WGPUNative.symbols.wgpuTextureRelease(texPtr);
WGPUNative.symbols.wgpuCommandBufferRelease(commandBuffer);
WGPUNative.symbols.wgpuCommandEncoderRelease(encoder);
}
setInterval(renderFrame, 16);

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{
"compilerOptions": {
"target": "ESNext",
"useDefineForClassFields": true,
"module": "ESNext",
"resolveJsonModule": true,
"allowJs": true,
"isolatedModules": true,
"moduleDetection": "force",
"noEmit": true,
"strict": true,
"noUnusedLocals": true,
"noUnusedParameters": true,
"noFallthroughCasesInSwitch": true,
"moduleResolution": "bundler"
},
"include": ["src"],
"exclude": ["node_modules", "dist", "build", "../../package/dist"]
}