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added esbuild to web

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This commit is contained in:
kirjavascript 2022-02-22 19:05:56 +00:00
parent efa67a2992
commit 48719fe011
7 changed files with 199 additions and 65 deletions
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0
web/static/gamepad.js → web/app/gamepad.js
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62
web/app/main.js Normal file
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@ -0,0 +1,62 @@
import init from '../pkg/web.js';
import gamepad from './gamepad.js';
const canvas = document.querySelector('canvas');
const ctx = canvas.getContext('2d', { alpha: false });
const img = ctx.createImageData(320, 240);
(async () => {
const emu = await init('web_bg.wasm');
function draw() {
const buffer = new Uint8ClampedArray(
emu.memory.buffer, emu.screen(), 320 * 240 * 3
);
for (let i = 0; i < 320*240; i++) {
const bufferIndex = i * 3;
const imgIndex = i * 4;
img.data[imgIndex+0] = buffer[bufferIndex+0];
img.data[imgIndex+1] = buffer[bufferIndex+1];
img.data[imgIndex+2] = buffer[bufferIndex+2];
img.data[imgIndex+3] = 255;
}
ctx.putImageData(img, 0, 0);
// ctx.putImageData(new ImageData(buffer, 320), 0, 0);
// TODO: webgl
}
// TODO: sonic 1 & 2
const frameCount = document.querySelector('.frameCount');
const epoch = performance.now();
let framesDone = 0;
const loop = () => {
requestAnimationFrame(loop);
const diff = performance.now() - epoch;
const frames = diff * 0.05992274 | 0;
const frameAmount = frames - framesDone;
frameCount.textContent = String(frameAmount);
if (document.visibilityState !== 'hidden') {
emu.gamepad_p1(gamepad());
if (frameAmount > 5) {
emu.frame(true);
} else {
for (let i = 0; i < frameAmount; i++) {
emu.frame(i === frameAmount - 1);
}
}
if (frameAmount > 0) {
draw();
}
}
framesDone = frames;
};
loop();
})();

3
web/build.sh
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@ -1,5 +1,6 @@
#!/bin/sh
wasm-pack build --release --target web --out-dir static/pkg
wasm-pack build --release --target web --out-dir pkg
cp pkg/web_bg.wasm static/web_bg.wasm
# develop
# https://www.npmjs.com/package/local-web-server

9
web/package.json Normal file
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@ -0,0 +1,9 @@
{
"scripts": {
"watch": "esbuild app/main.js --bundle --watch --outfile=static/main.js",
"build": "esbuild app/main.js --bundle --minify --outfile=static/main.js"
},
"dependencies": {
"esbuild": "^0.14.23"
}
}

2
web/static/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
*.js
*.wasm

65
web/static/index.html
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@ -52,69 +52,6 @@
<h1>DEMO</h1>
<span class="frameCount"></span>
</main>
<script type="module">
import init from './pkg/web.js';
import gamepad from './gamepad.js';
const canvas = document.querySelector('canvas');
const ctx = canvas.getContext('2d', { alpha: false });
const img = ctx.createImageData(320, 240);
(async () => {
const emu = await init();
function draw() {
const buffer = new Uint8ClampedArray(
emu.memory.buffer, emu.screen(), 320 * 240 * 3
);
for (let i = 0; i < 320*240; i++) {
const bufferIndex = i * 3;
const imgIndex = i * 4;
img.data[imgIndex+0] = buffer[bufferIndex+0];
img.data[imgIndex+1] = buffer[bufferIndex+1];
img.data[imgIndex+2] = buffer[bufferIndex+2];
img.data[imgIndex+3] = 255;
}
ctx.putImageData(img, 0, 0);
// ctx.putImageData(new ImageData(buffer, 320), 0, 0);
// TODO: webgl
}
// TODO: sonic 1 & 2
const frameCount = document.querySelector('.frameCount');
const epoch = performance.now();
let framesDone = 0;
const loop = () => {
requestAnimationFrame(loop);
const diff = performance.now() - epoch;
const frames = diff * 0.05992274 | 0;
const frameAmount = frames - framesDone;
frameCount.textContent = String(frameAmount);
if (document.visibilityState !== 'hidden') {
emu.gamepad_p1(gamepad());
if (frameAmount > 5) {
emu.frame(true);
} else {
for (let i = 0; i < frameAmount; i++) {
emu.frame(i === frameAmount - 1);
}
}
if (frameAmount > 0) {
draw();
}
}
framesDone = frames;
};
loop();
})();
</script>
<script src="./main.js"></script>
</body>
</html>

123
web/yarn.lock Normal file
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@ -0,0 +1,123 @@
# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
# yarn lockfile v1
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optionalDependencies:
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esbuild-darwin-64 "0.14.23"
esbuild-darwin-arm64 "0.14.23"
esbuild-freebsd-64 "0.14.23"
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esbuild-linux-64 "0.14.23"
esbuild-linux-arm "0.14.23"
esbuild-linux-arm64 "0.14.23"
esbuild-linux-mips64le "0.14.23"
esbuild-linux-ppc64le "0.14.23"
esbuild-linux-riscv64 "0.14.23"
esbuild-linux-s390x "0.14.23"
esbuild-netbsd-64 "0.14.23"
esbuild-openbsd-64 "0.14.23"
esbuild-sunos-64 "0.14.23"
esbuild-windows-32 "0.14.23"
esbuild-windows-64 "0.14.23"
esbuild-windows-arm64 "0.14.23"