@arcgis/core/views/3d/layers/i3s/I3SBinaryReader.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"../../../../core/Error.js";import{clone as t}from"../../../../core/lang.js";import n from"../../../../core/Logger.js";import{isInt16Array as r,minInt16 as o,isInt32Array as i,minInt32 as u,nativeArrayMaxSize as a}from"../../../../core/typedArrayUtil.js";import{compactUCharArray as s}from"../../../../geometry/support/UCharArray.js";import{compactUShortArray as c}from"../../../../geometry/support/UShortArray.js";import{decodeRGB as f,decodeIntensity as l}from"./LEPCC.js";const d=()=>n.getLogger("esri.views.3d.layers.i3s.I3SBinaryReader");function b(t,n,r){let o="",i=0;for(;i<r;){const u=t[n+i];if(u<128)o+=String.fromCharCode(u),i++;else if(u>=192&&u<224){if(i+1>=r)throw new e("utf8-decode-error","UTF-8 Decode failed. Two byte character was truncated.");const a=(31&u)<<6|63&t[n+i+1];o+=String.fromCharCode(a),i+=2}else if(u>=224&&u<240){if(i+2>=r)throw new e("utf8-decode-error","UTF-8 Decode failed. Multi byte character was truncated.");const a=(15&u)<<12|(63&t[n+i+1])<<6|63&t[n+i+2];o+=String.fromCharCode(a),i+=3}else{if(!(u>=240&&u<248))throw new e("utf8-decode-error","UTF-8 Decode failed. Invalid multi byte sequence.");{if(i+3>=r)throw new e("utf8-decode-error","UTF-8 Decode failed. Multi byte character was truncated.");const a=(7&u)<<18|(63&t[n+i+1])<<12|(63&t[n+i+2])<<6|63&t[n+i+3];if(a>=65536){const e=55296+(a-65536>>10),t=56320+(1023&a);o+=String.fromCharCode(e,t)}else o+=String.fromCharCode(a);i+=4}}}return o}function y(e,t){const n={byteOffset:0,byteCount:0,fields:Object.create(null)};let r=0;for(let o=0;o<t.length;o++){const i=t[o],u=i.valueType||i.type,a=j[u];n.fields[i.property]=a(e,r),r+=x[u].BYTES_PER_ELEMENT}return n.byteCount=r,n}function g(e,t,n){return p(e,t,n).map(e=>{const t=e?Date.parse(e):null;return null==t||Number.isNaN(t)?null:t})}function p(t,n,r){const o=[];let i,u,a=0;for(u=0;u<t;u+=1){if(i=n[u],i>0){if(o.push(b(r,a,i-1)),0!==r[a+i-1])throw new e("string-array-error","Invalid string array: missing null termination.")}else o.push(null);a+=i}return o}function m(e,t){return new(0,x[t.valueType])(e,t.byteOffset,t.count*t.valuesPerElement)}function w(e,t){const n=m(e,t);if(n.length>=a)return n;const r=new Array;return n.forEach((e,t)=>r.push(v(n,t))),r}function v(e,t){if(!e)return null;const n=e[t];if(r(e))return n===o?null:n;if(i(e))return n===u?null:n;return n!=n?null:n}function C(e,t){return new Uint8Array(e,t.byteOffset,t.byteCount)}function h(n,r,o){const i=null!=r.header?y(n,r.header):{byteOffset:0,byteCount:0,fields:{count:o}},u={header:i,byteOffset:i.byteCount,byteCount:0,entries:Object.create(null)};let a=i.byteCount;for(let s=0;s<r.ordering.length;s++){const n=r.ordering[s],o=t(r[n]);if(o.count=i.fields.count??0,"String"===o.valueType){if(o.byteOffset=a,o.byteCount=i.fields[n+"ByteCount"],"UTF-8"!==o.encoding)throw new e("unsupported-encoding","Unsupported String encoding.",{encoding:o.encoding});if(o.timeEncoding&&"ECMA_ISO8601"!==o.timeEncoding)throw new e("unsupported-time-encoding","Unsupported time encoding.",{timeEncoding:o.timeEncoding})}else{if(!F(o.valueType))throw new e("unsupported-value-type","Unsupported binary valueType",{valueType:o.valueType});{const e=B(o.valueType);a+=a%e!==0?e-a%e:0,o.byteOffset=a,o.byteCount=e*o.valuesPerElement*o.count}}a+=o.byteCount??0,u.entries[n]=o}return u.byteCount=a-u.byteOffset,u}function I(t,n,r){if(n!==t&&d().error(`Invalid ${r} buffer size\n expected: ${t}, actual: ${n})`),n<t)throw new e("buffer-too-small","Binary buffer is too small",{expectedSize:t,actualSize:n})}function A(e){return{isDraco:!1,isLegacy:!1,color:null!=e.color,normal:null!=e.normal,uv0:null!=e.uv0,uvRegion:null!=e.uvRegion,featureIndex:null!=e.faceRange&&null!=e.featureId}}function U(e,t){const n=y(e,t&&t.header);let r=n.byteCount;const o={isDraco:!1,header:n,byteOffset:n.byteCount,byteCount:0,vertexAttributes:{}},i=n.fields,u=null!=i.vertexCount?i.vertexCount:i.count;for(const c of t.ordering){if(!t.vertexAttributes[c])continue;const e={...t.vertexAttributes[c],byteOffset:r,count:u},n=D[c]||"_"+c;o.vertexAttributes[n]=e,r+=B(e.valueType)*e.valuesPerElement*u}const a=i.faceCount;if(t.faces&&a){o.faces={};for(const e of t.ordering){if(!t.faces[e])continue;const n={...t.faces[e],byteOffset:r,count:a};o.faces[e]=n,r+=B(n.valueType)*n.valuesPerElement*a}}const s=i.featureCount;if(t.featureAttributes&&t.featureAttributeOrder&&s){o.featureAttributes={};for(const e of t.featureAttributeOrder){if(!t.featureAttributes[e])continue;const n={...t.featureAttributes[e],byteOffset:r,count:s};o.featureAttributes[e]=n;r+=("UInt64"===n.valueType?8:B(n.valueType))*n.valuesPerElement*s}}return I(r,e.byteLength,"geometry"),o.byteCount=r-o.byteOffset,o}function E(e,t){return!(!e||!e.compressedAttributes||"draco"!==e.compressedAttributes.encoding)?O(e.compressedAttributes.attributes):e?A(e):T(t)}function T(e){const t={isDraco:!1,isLegacy:!0,color:!1,normal:!1,uv0:!1,uvRegion:!1,featureIndex:!1};for(const n of e.ordering)if(e.vertexAttributes[n])switch(n){case"position":break;case"normal":t.normal=!0;break;case"color":t.color=!0;break;case"uv0":t.uv0=!0;break;case"region":t.uvRegion=!0}return e.featureAttributes&&e.featureAttributeOrder&&(t.featureIndex=!0),t}function O(e){const t={isDraco:!0,isLegacy:!1,color:!1,normal:!1,uv0:!1,uvRegion:!1,featureIndex:!1};for(const n of e)switch(n){case"position":break;case"normal":t.normal=!0;break;case"uv0":t.uv0=!0;break;case"color":t.color=!0;break;case"uv-region":t.uvRegion=!0;break;case"feature-index":t.featureIndex=!0}return t}const D={position:"position",normal:"normal",color:"color",uv0:"uv0",region:"uvRegion"};function S(t,n,r,o=!1){if("lepcc-rgb"===t.encoding)return o?f(n):s(f(n));if("lepcc-intensity"===t.encoding)return o?l(n):c(l(n));if(null!=t.encoding&&""!==t.encoding)throw new e("unknown-attribute-storage-info-encoding","Unknown Attribute Storage Info Encoding");t["attributeByteCounts "]&&!t.attributeByteCounts&&(d().warn("Warning: Trailing space in 'attributeByteCounts '."),t.attributeByteCounts=t["attributeByteCounts "]),"ObjectIds"===t.ordering[0]&&t.hasOwnProperty("objectIds")&&(d().warn("Warning: Case error in objectIds"),t.ordering[0]="objectIds");const i=h(n,t,r);I(i.byteOffset+i.byteCount,n.byteLength,"attribute");const u=i.entries.attributeValues||i.entries.objectIds;if(u){if("String"===u.valueType){const e=i.entries.attributeByteCounts,t=m(n,e),r=C(n,u);return u.timeEncoding?g(e.count,t,r):p(e.count,t,r)}return o?m(n,u):w(n,u)}throw new e("bad-attribute-storage-info","Bad attributeStorageInfo specification.")}const x={Float32:Float32Array,Float64:Float64Array,UInt8:Uint8Array,Int8:Int8Array,UInt16:Uint16Array,Int16:Int16Array,UInt32:Uint32Array,Int32:Int32Array},j={Float32:(e,t)=>new DataView(e,0).getFloat32(t,!0),Float64:(e,t)=>new DataView(e,0).getFloat64(t,!0),UInt8:(e,t)=>new DataView(e,0).getUint8(t),Int8:(e,t)=>new DataView(e,0).getInt8(t),UInt16:(e,t)=>new DataView(e,0).getUint16(t,!0),Int16:(e,t)=>new DataView(e,0).getInt16(t,!0),UInt32:(e,t)=>new DataView(e,0).getUint32(t,!0),Int32:(e,t)=>new DataView(e,0).getInt32(t,!0)};function F(e){return x.hasOwnProperty(e)}function B(e){return F(e)?x[e].BYTES_PER_ELEMENT:0}export{h as createAttributeDataIndex,E as createGeometryDescriptor,O as createGeometryDescriptorForDraco,A as createGeometryDescriptorFromDefinition,T as createGeometryDescriptorFromSchema,U as createGeometryIndexFromSchema,C as createRawView,m as createTypedView,B as getBytesPerValue,v as getCachedAttributeValue,F as isValueType,S as readBinaryAttribute,g as readDateStringArray,y as readHeader,p as readStringArray,j as valueType2ArrayBufferReader,x as valueType2TypedArrayClassMap};