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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,115 @@ | ||
| <!DOCTYPE html> | ||
| <html lang="en"> | ||
| <head> | ||
| <meta charset="utf-8" /> | ||
| <title>Playground</title> | ||
| <style> | ||
| canvas { | ||
| margin: 8px; | ||
| width: 200px; | ||
| } | ||
|
|
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| img { | ||
| display: block; | ||
| margin: 8px; | ||
| width: 200px; | ||
| } | ||
| </style> | ||
| </head> | ||
|
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| <button>ReEncode</button> | ||
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| <img src="/test/assets/test10.gif" /> | ||
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| <body> | ||
| <script type="module" async> | ||
| import { Encoder, decode, decodeFrames } from './src' | ||
| /* eslint-disable no-console */ | ||
| const el = document.querySelector('img') | ||
| const url = el.src | ||
|
|
||
| let width = 0 | ||
| let height = 0 | ||
| let frames = [] | ||
| if (url.startsWith('data:image/svg+xml;')) { | ||
| width = el.naturalWidth | ||
| height = el.naturalHeight | ||
| const canvas = document.createElement('canvas') | ||
| canvas.width = width | ||
| canvas.height = height | ||
| const ctx = canvas.getContext('2d') | ||
| ctx.drawImage(el, 0, 0) | ||
| const frame = ctx.getImageData(0, 0, width, height) | ||
| frames.push(frame) | ||
| } else { | ||
| const data = await fetch(url).then((res) => res.arrayBuffer()) | ||
|
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| console.log('raw size', data.byteLength / 1024) | ||
|
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| console.time('decode') | ||
| const gif = decode(data) | ||
| console.timeEnd('decode') | ||
|
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| console.log(gif) | ||
| console.time('decode frames') | ||
| frames = await decodeFrames(data, { | ||
| // workerUrl, | ||
| }) | ||
| console.timeEnd('decode frames') | ||
| width = gif.width | ||
| height = gif.height | ||
| } | ||
|
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| const encoder = new Encoder({ | ||
| debug: true, | ||
| width, | ||
| height, | ||
| maxColors: 255, | ||
| // workerUrl, | ||
| }) | ||
|
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| for (let len = frames.length, i = 0; i < len; i++) { | ||
| const frame = frames[i] | ||
| const canvas = document.createElement('canvas') | ||
| canvas.width = width | ||
| canvas.height = height | ||
| canvas.style.width = '60px' | ||
| canvas.style.border = '1px solid grey' | ||
| canvas.getContext('2d').putImageData( | ||
| new ImageData(frame.data, frame.width, frame.height), | ||
| 0, 0, | ||
| ) | ||
| document.body.append(canvas) | ||
| } | ||
|
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| document.querySelector('button').onclick = async () => { | ||
| console.time('encode') | ||
| for (let len = frames.length, i = 0; i < len; i++) { | ||
| const frame = frames[i] | ||
| await encoder.encode({ | ||
| delay: frame.delay, | ||
| data: frame.data, | ||
| }) | ||
| } | ||
| console.timeEnd('encode') | ||
|
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| console.time('flush') | ||
| const blob = await encoder.flush('blob') | ||
| console.timeEnd('flush') | ||
|
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| console.log('encode size', blob.size / 1024) | ||
|
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| const img = new Image() | ||
| img.src = URL.createObjectURL(blob) | ||
| document.body.append(img) | ||
|
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| blob.arrayBuffer().then(async buffer => { | ||
| console.log(decode(buffer)) | ||
| await decodeFrames(buffer) | ||
| }) | ||
|
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| console.log(encoder) | ||
| } | ||
| </script> | ||
| </body> | ||
| </html> |
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