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57 lines
2.1 KiB
57 lines
2.1 KiB
4 months ago
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A WASM version of Skia's PathOps toolkit.
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To use the library, run `npm install pathkit-wasm` and then simply include it:
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<script src="/node_modules/pathkit-wasm/bin/pathkit.js"></script>
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PathKitInit({
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locateFile: (file) => '/node_modules/pathkit-wasm/bin/'+file,
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}).ready().then((PathKit) => {
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// Code goes here using PathKit
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});
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PathKit comes in two parts, a JS loader and the actual WASM code. The JS loader creates
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a global `PathKitInit` that can be called to load the WASM code. The `locateFile` function
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is used to tell the JS loader where to find the .wasm file. By default, it will
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look for /pathkit.wasm, so if this is not the case, use `locateFile` to configure
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this properly.
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The `PathKit` object returned upon resolution of the .ready() Promise is fully loaded and ready to use.
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See the [API page](https://skia.org/user/modules/pathkit) and
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[example.html](https://github.com/google/skia/blob/master/modules/pathkit/npm-wasm/example.html)
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for details on how to use the library.
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Using PathKit and WebPack
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-------------------------
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WebPack's support for WASM is still somewhat experimental, but PathKit can be
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used with a few configuration changes.
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In the JS code, use require():
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const PathKitInit = require('pathkit-wasm/bin/pathkit.js')
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PathKitInit().ready().then((PathKit) => {
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// Code goes here using PathKit
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})
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Since WebPack does not expose the entire `/node_modules/` directory, but instead
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packages only the needed pieces, we have to copy pathkit.wasm into the build directory.
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One such solution is to use [CopyWebpackPlugin](https://github.com/webpack-contrib/copy-webpack-plugin).
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For example, add the following plugin:
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config.plugins.push(
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new CopyWebpackPlugin([
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{ from: 'node_modules/pathkit-wasm/bin/pathkit.wasm' }
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])
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);
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If webpack gives an error similar to:
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ERROR in ./node_modules/pathkit-wasm/bin/pathkit.js
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Module not found: Error: Can't resolve 'fs' in '...'
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Then, add the following configuration change to the node section of the config:
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config.node = {
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fs: 'empty'
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};
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