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BITMAP_SIZE");if(o<=i)for(let p=0;p<i-o+1;p++)r[p+o]=Z(t,e);const a=new Uint16Array(H),u=Bn(r,a),f=_(t,e);Kn(n.array,t,e,f,l,c);for(let p=0;p<n.channels;++p){const w=s[p];for(let y=0;y<s[p].size;++y)qn(l,w.start+y,w.nx,w.size,w.ny,w.nx*w.size,u)}$n(a,l,c);let x=0;const I=new Uint8Array(l.buffer.byteLength);for(let p=0;p<n.lines;p++)for(let w=0;w<n.channels;w++){const y=s[w],h=y.nx*y.size,v=new Uint8Array(l.buffer,y.end*R,h*R);I.set(v,x),x+=h*R,y.end+=h}return new DataView(I.buffer)}var m;(function(n){n[n.Float=0]="Float",n[n.HalfFloat=1]="HalfFloat"})(m||(m={}));class M{}M.DefaultOutputType=m.HalfFloat;M.FFLATEUrl="https://unpkg.com/fflate@0.8.2";async function dn(n,t,e,l){const r={size:0,viewer:t,array:new Uint8Array(t.buffer),offset:e,width:n.dataWindow.xMax-n.dataWindow.xMin+1,height:n.dataWindow.yMax-n.dataWindow.yMin+1,channels:n.channels.length,channelLineOffsets:{},scanOrder:()=>0,bytesPerLine:0,outLineWidth:0,lines:0,scanlineBlockSize:0,inputSize:null,type:0,uncompress:null,getter:()=>0,format:5,outputChannels:0,decodeChannels:{},blockCount:null,byteArray:null,linearSpace:!1,textureType:0};switch(n.compression){case U.NO_COMPRESSION:r.lines=1,r.uncompress=wn;break;case U.RLE_COMPRESSION:r.lines=1,r.uncompress=Qn;break;case U.ZIPS_COMPRESSION:r.lines=1,r.uncompress=rn,await G.LoadScriptAsync(M.FFLATEUrl);break;case U.ZIP_COMPRESSION:r.lines=16,r.uncompress=rn,await G.LoadScriptAsync(M.FFLATEUrl);break;case U.PIZ_COMPRESSION:r.lines=32,r.uncompress=jn;break;case U.PXR24_COMPRESSION:r.lines=16,r.uncompress=Vn,await G.LoadScriptAsync(M.FFLATEUrl);break;default:throw new Error(U[n.compression]+" is unsupported")}r.scanlineBlockSize=r.lines;const c={};for(const a of n.channels)switch(a.name){case"Y":case"R":case"G":case"B":case"A":c[a.name]=!0,r.type=a.pixelType}let s=!1;if(c.R&&c.G&&c.B)s=!c.A,r.outputChannels=4,r.decodeChannels={R:0,G:1,B:2,A:3};else if(c.Y)r.outputChannels=1,r.decodeChannels={Y:0};else throw new Error("EXRLoader.parse: file contains unsupported data channels.");if(r.type===1)switch(l){case m.Float:r.getter=In,r.inputSize=R;break;case m.HalfFloat:r.getter=B,r.inputSize=R;break}else if(r.type===2)switch(l){case m.Float:r.getter=b,r.inputSize=X;break;case m.HalfFloat:r.getter=Pn,r.inputSize=X}else throw new Error("Unsupported pixelType "+r.type+" for "+n.compression);r.blockCount=r.height/r.scanlineBlockSize;for(let a=0;a<r.blockCount;a++)gn(t,e);const o=r.width*r.height*r.outputChannels;switch(l){case m.Float:r.byteArray=new Float32Array(o),r.textureType=1,s&&r.byteArray.fill(1,0,o);break;case m.HalfFloat:r.byteArray=new Uint16Array(o),r.textureType=2,s&&r.byteArray.fill(15360,0,o);break;default:throw new Error("Unsupported type: "+l)}let i=0;for(const a of n.channels)r.decodeChannels[a.name]!==void 0&&(r.channelLineOffsets[a.name]=i*r.width),i+=a.pixelType*2;return r.bytesPerLine=r.width*i,r.outLineWidth=r.width*r.outputChannels,n.lineOrder==="INCREASING_Y"?r.scanOrder=a=>a:r.scanOrder=a=>r.height-1-a,r.outputChannels==4?(r.format=5,r.linearSpace=!0):(r.format=6,r.linearSpace=!1),r}function nt(n,t,e,l){const r={value:0};for(let c=0;c<n.height/n.scanlineBlockSize;c++){const s=P(e,l)-t.dataWindow.yMin;n.size=_(e,l),n.lines=s+n.scanlineBlockSize>n.height?n.height-s:n.scanlineBlockSize;const i=n.size<n.lines*n.bytesPerLine&&n.uncompress?n.uncompress(n):wn(n);l.value+=n.size;for(let a=0;a<n.scanlineBlockSize;a++){const u=c*n.scanlineBlockSize,f=a+n.scanOrder(u);if(f>=n.height)continue;const x=a*n.bytesPerLine,I=(n.height-1-f)*n.outLineWidth;for(let p=0;p<n.channels;p++){const w=t.channels[p].name,y=n.channelLineOffsets[w],h=n.decodeChannels[w];if(h!==void 0){r.value=x+y;for(let v=0;v<n.width;v++){const A=I+v*n.outputChannels+h;n.byteArray&&(n.byteArray[A]=n.getter(i,r))}}}}}}class st{constructor(){this.supportCascades=!1}loadCubeData(t,e,l,r,c){throw".exr not supported in Cube."}async loadData(t,e,l){const r=new DataView(t.buffer),c={value:0},s=zn(r,c),o=await dn(s,r,c,M.DefaultOutputType);nt(o,s,r,c);const i=s.dataWindow.xMax-s.dataWindow.xMin+1,a=s.dataWindow.yMax-s.dataWindow.yMin+1;l(i,a,e.generateMipMaps,!1,()=>{const u=e.getEngine();e.format=s.format,e.type=o.textureType,e.invertY=!1,e._gammaSpace=!s.linearSpace,o.byteArray&&u._uploadDataToTextureDirectly(e,o.byteArray,0,0,void 0,!0)})}}export{st as _ExrTextureLoader};