/* COPYRIGHT Esri - https://js.arcgis.com/5.1.2/LICENSE.txt */
import{reallocGrowthFactor as t}from"../../../../core/arrayUtils.js";import{estimateNumberArrayMemory as e}from"../../../../core/memoryEstimations.js";import{fromValues as r}from"../../../../core/libs/gl-matrix-2/factories/vec2f64.js";import"../../../webgl/BufferObject.js";import"../../../webgl/FramebufferObject.js";import"../../../webgl/Program.js";import"../../../../core/has.js";import"../../../webgl/Renderbuffer.js";import i from"../../../webgl/Texture.js";import"../../../../core/Logger.js";import{PixelType as s,SizedPixelFormat as a}from"../../../webgl/enums.js";import"../../../webgl/Util.js";import{minExpectedGaussianCount as o}from"./GaussianSplatAtlasPages.js";import{TextureDescriptor as u}from"../../../webgl/TextureDescriptor.js";class d{constructor(t){this.texture=null,this._orderTextureCapacity=0,this._rctx=t}get usedMemory(){return(this.texture?.usedMemory??0)+e(this._uploadAtlasIndices)}ensureCapacity(e){if(e<=0)return{textureWidth:0,rowCount:0,paddedSize:0};const r=this.texture;if(this._orderTextureCapacity>=e&&r?.hasWebGLTextureObject){const t=r.descriptor.width,i=Math.ceil(e/t);return{textureWidth:t,rowCount:i,paddedSize:t*i}}const d=Math.max(Math.ceil(e*t),o),[l,c]=this._evalTextureSize(d),h=l*c;this._orderTextureCapacity=h,this.texture?.dispose();const n=new u;n.width=l,n.height=c,n.pixelFormat=36244,n.dataType=s.UNSIGNED_INT,n.internalFormat=a.R32UI,n.wrapMode=33071,n.samplingMode=9728,n.isImmutable=!0,this.texture=new i(this._rctx,n);const p=Math.ceil(e/l);return{textureWidth:l,rowCount:p,paddedSize:l*p}}setData(t,e){const{textureWidth:r,rowCount:i,paddedSize:s}=this.ensureCapacity(e);if(t.length>=s)return void this.texture.updateData(0,0,0,r,i,t);(!this._uploadAtlasIndices||this._uploadAtlasIndices.length<s)&&(this._uploadAtlasIndices=new Uint32Array(s));const a=this._uploadAtlasIndices;a.set(t.subarray(0,e)),this.texture.updateData(0,0,0,r,i,a)}clear(){this._orderTextureCapacity=0,this._uploadAtlasIndices=void 0,this.texture?.dispose(),this.texture=null}destroy(){this.clear()}_evalTextureSize(t){const e=Math.ceil(Math.sqrt(t)),i=Math.ceil(t/e);return r(e,i)}}export{d as GaussianSplatOrderTexture};
