@arcgis/core/views/3d/support/gaussianSplatting/GaussianSplatAtlasPages.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 */
const t=4096,s=64,e=1023,i=e+1,n=t*s/i,r=4,o=i*r,h=e*r,a=t*s;class c{constructor(t=n){this._pageCount=t;const s=Math.ceil(t/32);this._bitset=new Uint32Array(s)}get pageCount(){return this._pageCount}isAllocated(t){const s=t/32|0,e=t%32;return!!(this._bitset[s]&1<<e)}allocate(t){const s=t/32|0,e=t%32;this._bitset[s]|=1<<e}free(t){const s=t/32|0,e=t%32;this._bitset[s]&=~(1<<e)}findFirstFreePage(){for(let t=0;t<this._bitset.length;t++)if(4294967295!==this._bitset[t])for(let s=0;s<32;s++){const e=32*t+s;if(e>=this._pageCount)break;if(!(this._bitset[t]&1<<s))return e}return null}resize(t){this._pageCount=t;const s=Math.ceil(t/32),e=this._bitset.length;if(s!==e){const t=new Uint32Array(s),i=Math.min(e,s);t.set(this._bitset.subarray(0,i)),this._bitset=t}this._clearExcessBits(this._bitset,t)}_clearExcessBits(t,s){const e=Math.floor((s-1)/32),i=(s-1)%32;if(s>0&&i<31){const s=(1<<i+1)-1;t[e]&=s}e+1<t.length&&t.fill(0,e+1)}}export{c as GaussianSplatAtlasPages,i as elementsPerSplatPage,e as gaussiansPerSplatPage,s as initialSplatAtlasTextureHeight,n as initialSplatAtlasTexturePages,a as minExpectedGaussianCount,r as packedGaussianSizeInU32,t as splatAtlasTextureWidth,o as splatPageSizeInU32,h as splatPageSizeInU32WithoutHeader};