@arcgis/core/views/3d/layers/graphics/wosrLoader.js

ArcGIS Maps SDK for JavaScript: A complete 2D and 3D mapping and data visualization API

/* COPYRIGHT Esri - https://js.arcgis.com/5.0.8/LICENSE.txt */
import e from"../../../../request.js";import{result as t}from"../../../../core/asyncUtils.js";import r from"../../../../core/Error.js";import n from"../../../../core/Logger.js";import{estimateNestedObjectMemory as s}from"../../../../core/memoryEstimations.js";import{NestedMap as o}from"../../../../core/NestedMap.js";import{throwIfAbortError as a}from"../../../../core/promiseUtils.js";import i from"../../../../core/Version.js";import{fromArray as l}from"../../../../core/libs/gl-matrix-2/factories/vec3f64.js";import{empty as u,expandWithVec3 as c}from"../../../../geometry/support/aaBoundingBox.js";import{getContinuousIndexArray as m}from"../../../../geometry/support/Indices.js";import{requestImage as p}from"../../../../request/image.js";import{Attribute as f}from"../../webgl-engine/lib/Attribute.js";import{Geometry as d}from"../../webgl-engine/lib/Geometry.js";import{ManagedTexture as g}from"../../webgl-engine/lib/ManagedTexture.js";import{DefaultMaterial as y}from"../../webgl-engine/materials/DefaultMaterial.js";const w=()=>n.getLogger("esri.views.3d.layers.graphics.objectResourceUtils");class x{constructor(e,t,r){this.resource=e,this.textures=t,this.usedMemory=r}}async function h(e,t){const r=await b(e,t),n=await P(r.textureDefinitions??{},t);let o=0;for(const s in n)if(n.hasOwnProperty(s)){const e=n[s];o+=e?.image?e.image.width*e.image.height*4:0}return new x(r,n,o+s(r))}async function b(r,n){const s=await t(e(r,n));if(s.ok)return s.value.data;a(s.error),v(s.error)}function v(e){throw new r("",`Request for object resource failed: ${e}`)}function A(e){const t=e.params,r=t.topology;let n=!0;switch(t.vertexAttributes||(w().warn("Geometry must specify vertex attributes"),n=!1),t.topology){case"PerAttributeArray":break;case"Indexed":case null:case void 0:{const e=t.faces;if(e){if(t.vertexAttributes)for(const r in t.vertexAttributes){const t=e[r];t?.values?(null!=t.valueType&&"UInt32"!==t.valueType&&(w().warn(`Unsupported indexed geometry indices type '${t.valueType}', only UInt32 is currently supported`),n=!1),null!=t.valuesPerElement&&1!==t.valuesPerElement&&(w().warn(`Unsupported indexed geometry values per element '${t.valuesPerElement}', only 1 is currently supported`),n=!1)):(w().warn(`Indexed geometry does not specify face indices for '${r}' attribute`),n=!1)}}else w().warn("Indexed geometries must specify faces"),n=!1;break}default:w().warn(`Unsupported topology '${r}'`),n=!1}e.params.material||(w().warn("Geometry requires material"),n=!1);const s=e.params.vertexAttributes;for(const o in s){s[o].values||(w().warn("Geometries with externally defined attributes are not yet supported"),n=!1)}return n}function j(e,t){const r=new Array,n=new Array,s=new Array,a=new o,u=e.resource,c=i.parse(u.version||"1.0","wosr");E.validate(c);const p=u.model.name,w=u.model.geometries,x=u.materialDefinitions??{},h=e.textures;let b=0;const v=new Map;for(let o=0;o<w.length;o++){const e=w[o];if(!A(e))continue;const i=I(e),u=e.params.vertexAttributes,c=[],p=t=>{if("PerAttributeArray"===e.params.topology)return null;const r=e.params.faces;for(const e in r)if(e===t)return r[e].values;return null},j=u.position,M=j.values.length/j.valuesPerElement;for(const t in u){const e=u[t],r=e.values,n=p(t)??m(M);c.push([t,new f(r,n,e.valuesPerElement,!0)])}const P=i.texture,E=h&&h[P];if(E&&!v.has(P)){const{image:e,parameters:t}=E,r=new g(e,t);n.push(r),v.set(P,r)}const T=v.get(P),k=T?T.id:void 0,O=i.material;let C=a.get(O,P);if(null==C){const e=x[O.slice(O.lastIndexOf("/")+1)].params;1===e.transparency&&(e.transparency=0);const r=E?U(E.alphaChannelUsage):void 0,n={ambient:l(e.diffuse),diffuse:l(e.diffuse),opacity:1-(e.transparency||0),textureAlphaMode:r,textureAlphaCutoff:.33,textureId:k,doubleSided:!0,cullFace:0,colorMixMode:e.externalColorMixMode||"tint",textureAlphaPremultiplied:E?.parameters.preMultiplyAlpha??!1};t?.materialParameters&&Object.assign(n,t.materialParameters),C=new y(n,t),a.set(O,P,C)}s.push(C);const $=new d(C,c);b+=c.find(e=>"position"===e[0])?.[1]?.indices.length??0,r.push($)}return{engineResources:[{name:p,stageResources:{textures:n,materials:s,geometries:r},pivotOffset:u.model.pivotOffset,numberOfVertices:b,lodThreshold:null}],referenceBoundingBox:M(r)}}function M(e){const t=u();return e.forEach(e=>{const r=e.boundingInfo;null!=r&&(c(t,r.bbMin),c(t,r.bbMax))}),t}async function P(e,t){const r=new Array;for(const o in e){const n=e[o],s=n.images[0].data;if(!s){w().warn("Externally referenced texture data is not yet supported");continue}const a=n.encoding+";base64,"+s,i="/textureDefinitions/"+o,l="rgba"===n.channels?n.alphaChannelUsage||"transparency":"none",u={noUnpackFlip:!0,wrap:{s:10497,t:10497},preMultiplyAlpha:1!==U(l)},c=t?.disableTextures?Promise.resolve(null):p(a,t);r.push(c.then(e=>({refId:i,image:e,parameters:u,alphaChannelUsage:l})))}const n=await Promise.all(r),s={};for(const o of n)s[o.refId]=o;return s}function U(e){switch(e){case"mask":return 2;case"maskAndTransparency":return 3;case"none":return 1;default:return 0}}function I(e){const t=e.params;return{id:1,material:t.material,texture:t.texture,region:t.texture}}const E=new i(1,2,"wosr");export{x as LoaderResultWOSR,P as createTextureResources,h as load,j as processLoadResult};