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