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Optipng (#156)

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* omg it’s compiling

* example actually works

* Expose compression level options

* Disable crypto and path module emulation in webpack

* Update README

* Remove small image

* Use -O3 on optipng

* Free memory after copy

* Handle unexpected file reader return types

* Rename level label to effort
This commit is contained in:
Surma
2018-09-04 16:49:45 +01:00
committed by Jake Archibald
parent 170d75482e
commit 54ad30a7ed
19 changed files with 1832 additions and 10 deletions
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19
codecs/optipng/example.html Normal file
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<!doctype html>
<script src='optipng.js'></script>
<script>
const Module = optipng();
Module.onRuntimeInitialized = async _ => {
console.log('Version:', Module.version().toString(16));
const image = await fetch('../example_palette.png').then(r => r.arrayBuffer());
const newImage = Module.compress(image, {level: 3});
console.log('done');
Module.free_result();
console.log(`Old size: ${image.byteLength}, new size: ${newImage.byteLength} (${newImage.byteLength/image.byteLength*100}%)`);
const blobURL = URL.createObjectURL(new Blob([newImage], {type: 'image/png'}));
const img = document.createElement('img');
img.src = blobURL;
document.body.appendChild(img);
};
</script>