@itwin/core-frontend
Version:
iTwin.js frontend components
122 lines • 25 kB
JavaScript
;
/*---------------------------------------------------------------------------------------------
* Copyright (c) Bentley Systems, Incorporated. All rights reserved.
* See LICENSE.md in the project root for license terms and full copyright notice.
*--------------------------------------------------------------------------------------------*/
/** @packageDocumentation
* @module Tiles
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.getMeshoptDecoder = getMeshoptDecoder;
exports.decodeMeshoptBuffer = decodeMeshoptBuffer;
const core_bentley_1 = require("@itwin/core-bentley");
const FrontendLoggerCategory_1 = require("../../common/FrontendLoggerCategory");
;
// This is a modified version of https://github.com/zeux/meshoptimizer/blob/master/js/meshopt_decoder.js.
// The orginial code will load wasm when the module is imported, which seems to upset vitest somehow.
// This version loads wasm only when a decoder is requested, which only occurs when parsing a compressed tile.
async function getDecoder() {
// Built with clang version 16.0.0
// Built from meshoptimizer 0.20
const wasmBase = "b9H79Tebbbe8Fv9Gbb9Gvuuuuueu9Giuuub9Geueu9Giuuueuikqbeeedddillviebeoweuec:q;iekr;leDo9TW9T9VV95dbH9F9F939H79T9F9J9H229F9Jt9VV7bb8A9TW79O9V9Wt9F9KW9J9V9KW9wWVtW949c919M9MWVbeY9TW79O9V9Wt9F9KW9J9V9KW69U9KW949c919M9MWVbdE9TW79O9V9Wt9F9KW9J9V9KW69U9KW949tWG91W9U9JWbiL9TW79O9V9Wt9F9KW9J9V9KWS9P2tWV9p9JtblK9TW79O9V9Wt9F9KW9J9V9KWS9P2tWV9r919HtbvL9TW79O9V9Wt9F9KW9J9V9KWS9P2tWVT949Wbol79IV9Rbrq;d8Yqdbk:yzeHu8Jjjjjbcj;eb9Rgv8Kjjjjbc9:hodnadcefal0mbcuhoaiRbbc:Ge9hmbavaialfgrad9Radz1jjjbhwcj;abad9UhlaicefhodnadTmbalc;WFbGglcjdalcjd6EhDcbhqinaqae9pmeaDaeaq9RaqaDfae6Egkcsfglcl4cifcd4hxdndndndnalc9WGgmTmbcbhPcehsawcjdfhzaohHinaraH9Rax6midnaraHaxfgo9RcK6mbczhlcbhOinalgic9WfgAawcj;cbffhldndndndndnaHaAco4fRbbaOcoG4ciGPlbedibkal9cb83ibalcwf9cb83ibxikalaoRblaoRbbgAco4gCaCciSgCE86bbawcj;cbfaifglcGfaoclfaCfgCRbbaAcl4ciGgXaXciSgXE86bbalcVfaCaXfgCRbbaAcd4ciGgXaXciSgXE86bbalc7faCaXfgCRbbaAciGgAaAciSgAE86bbalctfaCaAfgCRbbaoRbegAco4gXaXciSgXE86bbalc91faCaXfgCRbbaAcl4ciGgXaXciSgXE86bbalc4faCaXfgCRbbaAcd4ciGgXaXciSgXE86bbalc93faCaXfgCRbbaAciGgAaAciSgAE86bbalc94faCaAfgCRbbaoRbdgAco4gXaXciSgXE86bbalc95faCaXfgCRbbaAcl4ciGgXaXciSgXE86bbalc96faCaXfgCRbbaAcd4ciGgXaXciSgXE86bbalc97faCaXfgCRbbaAciGgAaAciSgAE86bbalc98faCaAfgARbbaoRbigoco4gCaCciSgCE86bbalc99faAaCfgARbbaocl4ciGgCaCciSgCE86bbalc9:faAaCfgARbbaocd4ciGgCaCciSgCE86bbalcufaAaCfglRbbaociGgoaociSgoE86bbalaofhoxdkalaoRbwaoRbbgAcl4gCaCcsSgCE86bbawcj;cbfaifglcGfaocwfaCfgCRbbaAcsGgAaAcsSgAE86bbalcVfaCaAfgARbbaoRbegCcl4gXaXcsSgXE86bbalc7faAaXfgARbbaCcsGgCaCcsSgCE86bbalctfaAaCfgARbbaoRbdgCcl4gXaXcsSgXE86bbalc91faAaXfgARbbaCcsGgCaCcsSgCE86bbalc4faAaCfgARbbaoRbigCcl4gXaXcsSgXE86bbalc93faAaXfgARbbaCcsGgCaCcsSgCE86bbalc94faAaCfgARbbaoRblgCcl4gXaXcsSgXE86bbalc95faAaXfgARbbaCcsGgCaCcsSgCE86bbalc96faAaCfgARbbaoRbvgCcl4gXaXcsSgXE86bbalc97faAaXfgARbbaCcsGgCaCcsSgCE86bbalc98faAaCfgARbbaoRbogCcl4gXaXcsSgXE86bbalc99faAaXfgARbbaCcsGgCaCcsSgCE86bbalc9:faAaCfgARbbaoRbrgocl4gCaCcsSgCE86bbalcufaAaCfglRbbaocsGgoaocsSgoE86bbalaofhoxekalao8Pbb83bbalcwfaocwf8Pbb83bbaoczfhokdnaiam9pmbaOcdfhOaiczfhlarao9RcL0mekkaiam6miaoTmidnakTmbawaPfRbbhOawcj;cbfhlazhiakhAinaialRbbgHce4cbaHceG9R7aOfgO86bbaiadfhialcefhlaAcufgAmbkkazcefhzaPcefgPad6hsaohHaPad9hmexvkkcbhoasceGmdxikaoaxad2fhXdnakTmbcbhmcehsawcjdfhCinarao9Rax6miaoTmdaoaxfhoawamfRbbhOawcj;cbfhlaChiakhAinaialRbbgHce4cbaHceG9R7aOfgO86bbaiadfhialcefhlaAcufgAmbkaCcefhCamcefgmad6hsamad9hmbkaXhoxikcbhlcehsinarao9Rax6mdaoTmeaoaxfhoalcefglad6hsadal9hmbkaXhoxdkcbhoasceGTmekc9:hoxikabaqad2fawcjdfakad2z1jjjb8Aawawcjdfakcufad2fadz1jjjb8Aakaqfhqaombkc9:hoxekcbc99arao9Radcaadca0ESEhokavcj;ebf8Kjjjjbaok;xzeHu8Jjjjjbc;ae9Rgv8Kjjjjbc9:hodnaeci9UgrcHfal0mbcuhoaiRbbgwc;WeGc;Ge9hmbawcsGgDce0mbavc;abfcFecjez:jjjjb8AavcUf9cu83ibavc8Wf9cu83ibavcyf9cu83ibavcaf9cu83ibavcKf9cu83ibavczf9cu83ibav9cu83iwav9cu83ibaialfc9WfhqaicefgwarfhodnaeTmbcmcsaDceSEhkcbhxcbhmcbhrcbhicbhlindnaoaq9nmbc9:hoxikdndnawRbbgDc;Ve0mbavc;abfalaDcu7gPcl4fcsGcitfgsydlhzasydbhHdnaDcsGgDak9pmbavaiaPfcsGcdtfydbaxaDEhsaDThDdndnadcd9hmbabarcetfgPaH87ebaPcdfaz87ebaPclfas87ebxekabarcdtfgPaHBdbaPclfazBdbaPcwfasBdbkaxaDfhxavc;abfalcitfgPasBdbaPazBdlavaicdtfasBdbavc;abfalcefcsGglcitfgPaHBdbaPasBdlaiaDfhialcefhlxdkdndnaDcsSmbamaDfaDc987fcefhmxekaocefhDao8SbbgscFeGhPdndnascu9mmbaDhoxekaocvfhoaPcFbGhPcrhsdninaD8SbbgOcFbGastaPVhPaOcu9kmeaDcefhDascrfgsc8J9hmbxdkkaDcefhokaPce4cbaPceG9R7amfhmkdndnadcd9hmbabarcetfgDaH87ebaDcdfaz87ebaDclfam87ebxekabarcdtfgDaHBdbaDclfazBdbaDcwfamBdbkavc;abfalcitfgDamBdbaDazBdlavaicdtfamBdbavc;abfalcefcsGglcitfgDaHBdbaDamBdlaicefhialcefhlxekdnaDcpe0mbaxcefgOavaiaqaDcsGfRbbgscl49RcsGcdtfydbascz6gPEhDavaias9RcsGcdtfydbaOaPfgzascsGgOEhsaOThOdndnadcd9hmbabarcetfgHax87ebaHcdfaD87ebaHclfas87ebxekabarcdtfgHaxBdbaHclfaDBdbaHcwfasBdbkavaicdtfaxBdbavc;abfalcitfgHaDBdbaHaxBdlavaicefgicsGcdtfaDBdbavc;abfalcefcsGcitfgHasBdbaHaDBdlavaiaPfcsGgicdtfasBdbavc;abfalcdfcsGglcitfgDaxBdbaDasBdlalcefhlaiaOfhiazaOfhxxekaxcbaoRbbgHEgAaDc;: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;abfalcitfgDazBdbaDaABdlavaicdtfaABdbavc;abfalcefcsGcitfgDaOBdbaDazBdlavaicefgicsGcdtfazBdbavc;abfalcdfcsGcitfgDaABdbaDaOBdlavaiaHcz6aXcsSVfgicsGcdtfaOBdbaiaCTaCcsSVfhialcifhlkawcefhwalcsGhlaicsGhiarcifgrae6mbkkcbc99aoaqSEhokavc;aef8Kjjjjbaok:flevu8Jjjjjbcz9Rhvc9:hodnaecvfal0mbcuhoaiRbbc;:eGc;qe9hmbav9cb83iwaicefhraialfc98fhwdnaeTmbdnadcdSmbcbhDindnaraw6mbc9:skarcefhoar8SbbglcFeGhidndnalcu9mmbaohrxekarcvfhraicFbGhicrhldninao8Sbbgd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const wasmSimd = 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const detector = new Uint8Array([0, 97, 115, 109, 1, 0, 0, 0, 1, 4, 1, 96, 0, 0, 3, 3, 2, 0, 0, 5, 3, 1, 0, 1, 12, 1, 0, 10, 22, 2, 12, 0, 65, 0, 65, 0, 65, 0, 252, 10, 0, 0, 11, 7, 0, 65, 0, 253, 15, 26, 11]);
const wasmpack = new Uint8Array([32, 0, 65, 2, 1, 106, 34, 33, 3, 128, 11, 4, 13, 64, 6, 253, 10, 7, 15, 116, 127, 5, 8, 12, 40, 16, 19, 54, 20, 9, 27, 255, 113, 17, 42, 67, 24, 23, 146, 148, 18, 14, 22, 45, 70, 69, 56, 114, 101, 21, 25, 63, 75, 136, 108, 28, 118, 29, 73, 115]);
if (typeof WebAssembly !== 'object') {
core_bentley_1.Logger.logError(FrontendLoggerCategory_1.FrontendLoggerCategory.Render, "WebAssembly is not supported in this environment");
return undefined;
}
const wasm = WebAssembly.validate(detector) ? unpack(wasmSimd) : unpack(wasmBase);
let instance;
try {
const result = await WebAssembly.instantiate(wasm, {});
instance = result.instance;
instance.exports.__wasm_call_ctors();
}
catch (err) {
core_bentley_1.Logger.logException(FrontendLoggerCategory_1.FrontendLoggerCategory.Render, err);
return undefined;
}
function unpack(data) {
const result = new Uint8Array(data.length);
for (let i = 0; i < data.length; ++i) {
const ch = data.charCodeAt(i);
result[i] = ch > 96 ? ch - 97 : ch > 64 ? ch - 39 : ch + 4;
}
let write = 0;
for (let i = 0; i < data.length; ++i) {
result[write++] = (result[i] < 60) ? wasmpack[result[i]] : (result[i] - 60) * 64 + result[++i];
}
return result.buffer.slice(0, write);
}
function decode(decoder, target, count, size, source, filter) {
const fun = instance.exports[decoder];
const sbrk = instance.exports.sbrk;
const count4 = (count + 3) & ~3;
const tp = sbrk(count4 * size);
const sp = sbrk(source.length);
const heap = new Uint8Array(instance.exports.memory.buffer);
heap.set(source, sp);
const res = fun(tp, count, size, sp, source.length);
if (res === 0 && filter) {
filter(tp, count4, size);
}
target.set(heap.subarray(tp, tp + count * size));
sbrk(tp - sbrk(0));
if (res !== 0) {
throw new Error(`Malformed buffer data: ${res}`);
}
}
const decoders = {
//eslint-disable-next-line @typescript-eslint/naming-convention
ATTRIBUTES: 'meshopt_decodeVertexBuffer',
//eslint-disable-next-line @typescript-eslint/naming-convention
TRIANGLES: 'meshopt_decodeIndexBuffer',
//eslint-disable-next-line @typescript-eslint/naming-convention
INDICES: 'meshopt_decodeIndexSequence',
};
const filters = {
//eslint-disable-next-line @typescript-eslint/naming-convention
NONE: '',
//eslint-disable-next-line @typescript-eslint/naming-convention
OCTAHEDRAL: 'meshopt_decodeFilterOct',
//eslint-disable-next-line @typescript-eslint/naming-convention
QUATERNION: 'meshopt_decodeFilterQuat',
//eslint-disable-next-line @typescript-eslint/naming-convention
EXPONENTIAL: 'meshopt_decodeFilterExp',
};
return {
decodeVertexBuffer(target, count, size, source, filter) {
decode(decoders.ATTRIBUTES, target, count, size, source, filter ? instance.exports[filters[filter]] : undefined);
},
decodeIndexBuffer(target, count, size, source) {
decode(decoders.TRIANGLES, target, count, size, source);
},
decodeIndexSequence(target, count, size, source) {
decode(decoders.INDICES, target, count, size, source);
},
decodeGltfBuffer(target, count, size, source, mode, filter) {
decode(decoders[mode], target, count, size, source, filter ? instance.exports[filters[filter]] : undefined);
},
};
}
;
let meshoptDecoderLoaded = false;
let meshoptDecoder;
async function getMeshoptDecoder() {
if (!meshoptDecoderLoaded) {
meshoptDecoder = await getDecoder();
meshoptDecoderLoaded = true;
}
return meshoptDecoder;
}
async function decodeMeshoptBuffer(source, args) {
const decoder = await getMeshoptDecoder();
if (!decoder) {
return undefined;
}
const target = new Uint8Array(args.count * args.byteStride);
decoder.decodeGltfBuffer(target, args.count, args.byteStride, source, args.mode, args.filter);
return target;
}
//# sourceMappingURL=MeshoptCompression.js.map