32 lines
1.3 KiB
JavaScript
32 lines
1.3 KiB
JavaScript
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/*
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This file is meant to be processed in the context of an asset bundler.
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Specifically the import of 'simplify.wasm' is meant to be resolved by the
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corresponding path to that file. Configure a file loader to resolve .wasm
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files (e.g. Webpack: file-loader) accordingly.
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Otherwise you have to use the module factory 'simplify.js' manually and
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reproduce the steps from below to fit your build context. See example.html.
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Other than wrapping the memory handling for convenience this method also makes
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sure the module is only loaded once.
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*/
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import wasmModuleFactory from './simplify.js'
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import wasmUrl from './simplify.wasm'
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import { initEmscriptenModule } from '../wasm-util/initEmscripten.js'
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import { storeCoords, loadResultAndFreeMemory } from '../wasm-util/coordinates.js'
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export async function simplifyWasm(coords, tolerance, highestQuality) {
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const module = await getModule()
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const buffer = storeCoords(module, coords)
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const result = module._simplify(buffer, coords.length * 2, tolerance, highestQuality)
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module._free(buffer)
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return loadResultAndFreeMemory(module, result)
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}
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let emscriptenModule
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export async function getModule () {
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if (!emscriptenModule) emscriptenModule = initEmscriptenModule(wasmModuleFactory, wasmUrl)
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return await emscriptenModule
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}
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