@arcgis/core/views/3d/webgl-engine/lib/TextureRepository.js

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

/*
All material copyright ESRI, All Rights Reserved, unless otherwise specified.
See https://js.arcgis.com/4.32/esri/copyright.txt for details.
*/
import{_ as e}from"../../../../chunks/tslib.es6.js";import t from"../../../../core/Accessor.js";import r from"../../../../core/Evented.js";import s from"../../../../core/Logger.js";import{isPromiseLike as o,isAbortError as i}from"../../../../core/promiseUtils.js";import{property as n}from"../../../../core/accessorSupport/decorators/property.js";import"../../../../core/has.js";import"../../../../core/RandomLCG.js";import{subclass as a}from"../../../../core/accessorSupport/decorators/subclass.js";import{RenderRequestType as u}from"./basicInterfaces.js";import{ContentObjectType as d}from"./ContentObjectType.js";import{isFrameUpdateTexture as l}from"./ITexture.js";import{TaskPriority as p}from"../../../support/Scheduler.js";let h=class extends t{constructor(e){super({}),this._stage=e,this._textures=new Map,this._loadingCount=0,this._frameUpdates=new Map,this.events=new r,this._frameTask=e.view.resourceController.scheduler.registerTask(p.TEXTURE_UNLOAD)}normalizeCtorArgs(){return{}}destroy(){this._frameTask.remove(),this._stage.forEachOfType(d.Texture,(e=>e.unload()))}get updating(){return this._loadingCount>0||this._frameTask.updating}acquire(e){const t=this._textures.get(e);return t?(t.ref(),t.loadingPromise??t):this._createNewRef(e)}update(){let e=!1;this._frameUpdates.forEach((t=>{const r=t.texture.frameUpdate(t.previousToken);r>=0&&r!==t.previousToken&&(t.previousToken=r,e=!0)})),e&&this.events.emit("changed",u.BACKGROUND)}_createNewRef(e){const t=this._stage.getObject(e);if(null==t)return null;const r=t.events.on("unloaded",(()=>{r.remove(),this._onTextureUnloaded(e)})),n=new c(e,(()=>{this._frameTask.schedule((()=>{n.isUnreferenced&&t.unload()}))}));return this._textures.set(e,n),n.ref(),t.glTexture?(this._updateGLTexture(n,t.glTexture),l(t)&&this._frameUpdates.set(e,{texture:t,previousToken:-1}),n):(this._loadingCount++,n.loadingPromise=this._stage.schedule((()=>{const r=t.load(this._stage.renderView.renderingContext),a=r=>(this._loadingCount--,n.loadingPromise=null,this._updateGLTexture(n,r),l(t)&&this._frameUpdates.set(e,{texture:t,previousToken:-1}),n),u=e=>(this._loadingCount--,n.loadingPromise=null,i(e)||s.getLogger(this).error(e),null);return o(r)?r.then(a,u):a(r)})),n.loadingPromise)}_updateGLTexture(e,t){e.glTexture=t,this.events.emit("changed",u.UPDATE)}_onTextureUnloaded(e){this._textures.delete(e),this._frameUpdates.delete(e)}};e([n()],h.prototype,"_loadingCount",void 0),e([n()],h.prototype,"_frameTask",void 0),e([n()],h.prototype,"updating",null),h=e([a("esri.views.3d.webgl-engine.lib.TextureRepository")],h);class c{constructor(e,t){this.id=e,this._release=t,this._refCount=0}get isUnreferenced(){return 0===this._refCount}ref(){++this._refCount}release(){--this._refCount,this._refCount>0||(0!==this._refCount?(s.getLogger("esri.views.3d.webgl-engine.lib.TextureRepository.RefCountedTextureImpl").error("Cannot dereference texture that has no references!"),this._refCount=0):this._release())}}export{h as TextureRepository};