@doegis/core
Version:
DOE GIS API
3 lines (1 loc) • 5.26 kB
JavaScript
import{isSome as t,isNone as e}from"../../../../../core/maybe.js";import{DISPLAY_RECORD_INT_PER_ELEMENT as s}from"../definitions.js";const r=2147483647;class i{constructor(t){this._head=t,this._cursor=t}static from(t,e=0,s=t.byteLength/_.BYTES_PER_RECORD-e){const r=new _(new Int32Array(t,e*_.BYTES_PER_RECORD,s*_.ELEMENTS_PER_RECORD));return new i(r)}size(){let t=this._cursor,e=0;for(;t;)e+=t.size(),t=t._link;return e}get id(){return this._cursor.id}set id(t){this._cursor.id=t}get materialKey(){return this._cursor.materialKey}set materialKey(t){this._cursor.materialKey=t}get insertAfter(){return this._cursor.insertAfter}get indexFrom(){return this._cursor.indexFrom}set indexFrom(t){this._cursor.indexFrom=t}get indexCount(){return this._cursor.indexCount}set indexCount(t){this._cursor.indexCount=t}get vertexFrom(){return this._cursor.vertexFrom}set vertexFrom(t){this._cursor.vertexFrom=t}get vertexCount(){return this._cursor.vertexCount}set vertexCount(t){this._cursor.vertexCount=t}get sortKey(){return this._cursor.sortKey}set sortKey(t){this._cursor.sortKey=t}get index(){return this._cursor._indexStart+this._cursor._index}seekIndex(t){let e=t;for(this._cursor=this._head;this._cursor;){const t=this._cursor.size();if(e<t)return this._cursor._index=e,!0;e-=t,this._cursor=this._cursor._link}return!1}forEach(t){const e=this.getCursor();for(;e.next();)t(e)}link(t){if(!this._head)return void(this._head=t._head);let e=this._head;for(;e._link;)e=e._link;e._link=t._head,e._link._indexStart=e._indexStart+e.size()}getCursor(){return this.copy()}lookup(t){for(this._cursor=this._head;this._cursor&&!this._cursor.lookup(t);){if(!this._cursor._link)return!1;this._cursor=this._cursor._link}return!!this._cursor}copy(){const t=new i(this._head?.copy());if(!t._head)return t;let e=t._head,s=t._head._link;for(;s;)e._link=s.copy(),e=s,s=e._link;return t}next(){return!!this._cursor&&(!!this._cursor.next()||!!this._cursor._link&&(this._cursor=this._cursor._link,this.next()))}peekId(){return this._cursor.peekId()??this._cursor._link.peekId()}delete(e){let s=this._head,r=null;for(;s;){if(s.delete(e))return s.isEmpty()&&(t(r)&&(r._link=s._link),s===this._head&&(this._head=s._link),s===this._cursor&&(this._cursor=s._link)),!0;r=s,s=s._link}return!1}}i.ELEMENTS_PER_RECORD=s,i.BYTES_PER_RECORD=i.ELEMENTS_PER_RECORD*Int32Array.BYTES_PER_ELEMENT;class _{constructor(t){this._link=null,this._index=-1,this._indexStart=0,this._packedRecordsF32=null,this._deletedCount=0,this._offsets={instance:null},this._packedRecords=t}static from(t,e=0,s=t.byteLength/this.BYTES_PER_RECORD-e){return new _(new Int32Array(t,e*this.BYTES_PER_RECORD,s*this.ELEMENTS_PER_RECORD))}delete(t){const e=this._index,s=this.lookup(t);if(s)for(this.id=r,++this._deletedCount;this.next()&&this.id===t;)this.id=r,++this._deletedCount;return this._index=e,s}isEmpty(){return this._deletedCount===this.size()}link(t){this._link?this._link.link(t):this._link=t}lookup(t){if(e(this._offsets.instance)){this._offsets.instance=new Map;const t=this.copy();t._index=-1;let e=0;for(;t.next();)t.id!==e&&(this._offsets.instance.set(t.id,t._index),e=t.id)}if(!this._offsets.instance.has(t))return!1;const s=this._index;return this._index=this._offsets.instance.get(t),this.id!==r||(this._index=s,!1)}get id(){return this._packedRecords[this._index*_.ELEMENTS_PER_RECORD]}set id(t){this._packedRecords[this._index*_.ELEMENTS_PER_RECORD]=t}get materialKey(){return this._packedRecords[this._index*_.ELEMENTS_PER_RECORD+1]}set materialKey(t){this._packedRecords[this._index*_.ELEMENTS_PER_RECORD+1]=t}get insertAfter(){return this._packedRecords[this._index*_.ELEMENTS_PER_RECORD+2]}get indexFrom(){return this._packedRecords[this._index*_.ELEMENTS_PER_RECORD+3]}set indexFrom(t){this._packedRecords[this._index*_.ELEMENTS_PER_RECORD+3]=t}get indexCount(){return this._packedRecords[this._index*_.ELEMENTS_PER_RECORD+4]}set indexCount(t){this._packedRecords[this._index*_.ELEMENTS_PER_RECORD+4]=t}get vertexFrom(){return this._packedRecords[this._index*_.ELEMENTS_PER_RECORD+5]}set vertexFrom(t){this._packedRecords[this._index*_.ELEMENTS_PER_RECORD+5]=t}get vertexCount(){return this._packedRecords[this._index*_.ELEMENTS_PER_RECORD+6]}set vertexCount(t){this._packedRecords[this._index*_.ELEMENTS_PER_RECORD+6]=t}get sortKey(){return this._packedRecordsF32||(this._packedRecordsF32=new Float32Array(this._packedRecords.buffer)),this._packedRecordsF32[this._index*_.ELEMENTS_PER_RECORD+7]}set sortKey(t){this._packedRecordsF32||(this._packedRecordsF32=new Float32Array(this._packedRecords.buffer)),this._packedRecordsF32[this._index*_.ELEMENTS_PER_RECORD+7]=t}get index(){return this._index}size(){return this._packedRecords.length/_.ELEMENTS_PER_RECORD}next(){for(;++this._index<this.size()&&this.id===r;);return this._index<this.size()}peekId(){const t=(this._index+1)*_.ELEMENTS_PER_RECORD;return t>=this._packedRecords.length?0:this._packedRecords[t]}getCursor(){return this.copy()}copy(){const t=new _(this._packedRecords);return t._indexStart=this._indexStart,t._link=this._link,t._index=this._index,t._offsets=this._offsets,t._deletedCount=this._deletedCount,t}}_.ELEMENTS_PER_RECORD=s,_.BYTES_PER_RECORD=_.ELEMENTS_PER_RECORD*Int32Array.BYTES_PER_ELEMENT;export{i as DisplayRecordReader};