https://quenaris.vercel.app/assets/geotiff-bundle-BxzDHvdf.js

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4for(let y=0;y<s;++y){const m=p+y*c*i;for(let x=0;x<c;++x){const A=m+x*i,D=(u*s+y)*c+x,T=Math.floor(A/8),I=A%8;if(I+i<=8)f[D]=o.getUint8(T)>>8-i-I&h;else if(I+i<=16)f[D]=o.getUint16(T)>>16-i-I&h;else if(I+i<=24){const U=o.getUint16(T)<<8|o.getUint8(T+2);f[D]=U>>24-i-I&h}else f[D]=o.getUint32(T)>>32-i-I&h}}}}return f.buffer}class Rt{constructor(e,t,n,i,s,a){this.fileDirectory=e,this.geoKeys=t,this.dataView=n,this.littleEndian=i,this.tiles=s?{}:null,this.isTiled=!e.StripOffsets;const o=e.PlanarConfiguration;if(this.planarConfiguration=typeof o>"u"?1:o,this.planarConfiguration!==1&&this.planarConfiguration!==2)throw new Error("Invalid planar configuration.");this.source=a}getFileDirectory(){return this.fileDirectory}getGeoKeys(){return this.geoKeys}getWidth(){return this.fileDirectory.ImageWidth}getHeight(){return this.fileDirectory.ImageLength}getSamplesPerPixel(){return typeof this.fileDirectory.SamplesPerPixel<"u"?this.fileDirectory.SamplesPerPixel:1}getTileWidth(){return this.isTiled?this.fileDirectory.TileWidth:this.getWidth()}getTileHeight(){return this.isTiled?this.fileDirectory.TileLength:typeof this.fileDirectory.RowsPerStrip<"u"?Math.min(this.fileDirectory.RowsPerStrip,this.getHeight()):this.getHeight()}getBlockWidth(){return this.getTileWidth()}getBlockHeight(e){return this.isTiled||(e+1)*this.getTileHeight()<=this.getHeight()?this.getTileHeight():this.getHeight()-e*this.getTileHeight()}getBytesPerPixel(){let e=0;for(let t=0;t<this.fileDirectory.BitsPerSample.length;++t)e+=this.getSampleByteSize(t);return e}getSampleByteSize(e){if(e>=this.fileDirectory.BitsPerSample.length)throw new RangeError(`Sample index ${e} is out of range.`);return Math.ceil(this.fileDirectory.BitsPerSample[e]/8)}getReaderForSample(e){const t=this.fileDirectory.SampleFormat?this.fileDirectory.SampleFormat[e]:1,n=this.fileDirectory.BitsPerSample[e];switch(t){case 1:if(n<=8)return DataView.prototype.getUint8;if(n<=16)return DataView.prototype.getUint16;if(n<=32)return DataView.prototype.getUint32;break;case 2:if(n<=8)return DataView.prototype.getInt8;if(n<=16)return DataView.prototype.getInt16;if(n<=32)return DataView.prototype.getInt32;break;case 3:switch(n){case 16:return function(i,s){return Oe(this,i,s)};case 32:return DataView.prototype.getFloat32;case 64:return DataView.prototype.getFloat64}break}throw Error("Unsupported data format/bitsPerSample")}getSampleFormat(e=0){return this.fileDirectory.SampleFormat?this.fileDirectory.SampleFormat[e]:1}getBitsPerSample(e=0){return this.fileDirectory.BitsPerSample[e]}getArrayForSample(e,t){const n=this.getSampleFormat(e),i=this.getBitsPerSample(e);return ie(n,i,t)}async getTileOrStrip(e,t,n,i,s){const a=Math.ceil(this.getWidth()/this.getTileWidth()),o=Math.ceil(this.getHeight()/this.getTileHeight());let l;const{tiles:c}=this;this.planarConfiguration===1?l=t*a+e:this.planarConfiguration===2&&(l=n*a*o+t*a+e);let f,h;if(this.isTiled?(f=this.fileDirectory.TileOffsets[l],h=this.fileDirectory.TileByteCounts[l]):(f=this.fileDirectory.StripOffsets[l],h=this.fileDirectory.StripByteCounts[l]),h===0){const u=this.getBlockHeight(t)*this.getTileWidth(),p=this.planarConfiguration===2?this.getSampleByteSize(n):this.getBytesPerPixel(),y=new ArrayBuffer(u*p);return this.getArrayForSample(n,y).fill(this.getGDALNoData()||0),{x:e,y:t,sample:n,data:y}}const d=(await this.source.fetch([{offset:f,length:h}],s))[0];let g;return c===null||!c[l]?(g=(async()=>{let u=await i.decode(this.fileDirectory,d);const p=this.getSampleFormat(),y=this.getBitsPerSample();return Bt(p,y)&&(u=Ct(u,p,this.planarConfiguration,this.getSamplesPerPixel(),y,this.getTileWidth(),this.getBlockHeight(t))),u})(),c!==null&&(c[l]=g)):g=c[l],{x:e,y:t,sample:n,data:await g}}async _readRaster(e,t,n,i,s,a,o,l,c){const f=this.getTileWidth(),h=this.getTileHeight(),d=this.getWidth(),g=this.getHeight(),u=Math.max(Math.floor(e[0]/f),0),p=Math.min(Math.ceil(e[2]/f),Math.ceil(d/f)),y=Math.max(Math.floor(e[1]/h),0),m=Math.min(Math.ceil(e[3]/h),Math.ceil(g/h)),x=e[2]-e[0];let A=this.getBytesPerPixel();const D=[],T=[];for(let b=0;b<t.length;++b)this.planarConfiguration===1?D.push(Ut(this.fileDirectory.BitsPerSample,0,t[b])/8):D.push(0),T.push(this.getReaderForSample(t[b]));const I=[],{littleEndian:U}=this;for(let b=y;b<m;++b)for(let X=u;X<p;++X){let Q;this.planarConfiguration===1&&(Q=this.getTileOrStrip(X,b,0,s,c));for(let q=0;q<t.length;++q){const z=q,ue=t[q];this.planarConfiguration===2&&(A=this.getSampleByteSize(ue),Q=this.getTileOrStrip(X,b,ue,s,c));const Me=Q.then(N=>{const _e=N.data,Fe=new DataView(_e),W=this.getBlockHeight(N.y),V=N.y*h,H=N.x*f,Ue=V+W,Be=(N.x+1)

4*f,Ce=T[z],Re=Math.min(W,W-(Ue-e[3]),g-V),Le=Math.min(f,f-(Be-e[2]),d-H);for(let K=Math.max(0,e[1]-V);K<Re;++K)for(let v=Math.max(0,e[0]-H);v<Le;++v){const Ne=(K*f+v)*A,ge=Ce.call(Fe,Ne+D[z],U);let $;i?($=(K+V-e[1])*x*t.length+(v+H-e[0])*t.length+z,n[$]=ge):($=(K+V-e[1])*x+v+H-e[0],n[z][$]=ge)}});I.push(Me)}}if(await Promise.all(I),a&&e[2]-e[0]!==a||o&&e[3]-e[1]!==o){let b;return i?b=Ft(n,e[2]-e[0],e[3]-e[1],a,o,t.length,l):b=Gt(n,e[2]-e[0],e[3]-e[1],a,o,l),b.width=a,b.height=o,b}return n.width=a||e[2]-e[0],n.height=o||e[3]-e[1],n}async readRasters({window:e,samples:t=[],interleave:n,pool:i=null,width:s,height:a,resampleMethod:o,fillValue:l,signal:c}={}){const f=e||[0,0,this.getWidth(),this.getHeight()];if(f[0]>f[2]||f[1]>f[3])throw new Error("Invalid subsets");const h=f[2]-f[0],d=f[3]-f[1],g=h*d,u=this.getSamplesPerPixel();if(!t||!t.length)for(let x=0;x<u;++x)t.push(x);else for(let x=0;x<t.length;++x)if(t[x]>=u)return Promise.reject(new RangeError(`Invalid sample index '${t[x]}'.`));let p;if(n){const x=this.fileDirectory.SampleFormat?Math.max.apply(null,this.fileDirectory.SampleFormat):1,A=Math.max.apply(null,this.fileDirectory.BitsPerSample);p=ie(x,A,g*t.length),l&&p.fill(l)}else{p=[];for(let x=0;x<t.length;++x){const A=this.getArrayForSample(t[x],g);Array.isArray(l)&&x<l.length?A.fill(l[x]):l&&!Array.isArray(l)&&A.fill(l),p.push(A)}}const y=i||await Et(this.fileDirectory);return await this._readRaster(f,t,p,n,y,s,a,o,c)}async readRGB({window:e,interleave:t=!0,pool:n=null,width:i,height:s,resampleMethod:a,enableAlpha:o=!1,signal:l}={}){const c=e||[0,0,this.getWidth(),this.getHeight()];if(c[0]>c[2]||c[1]>c[3])throw new Error("Invalid subsets");const f=this.fileDirectory.PhotometricInterpretation;if(f===P.RGB){let m=[0,1,2];if(this.fileDirectory.ExtraSamples!==ut.Unspecified&&o){m=[];for(let x=0;x<this.fileDirectory.BitsPerSample.length;x+=1)m.push(x)}return this.readRasters({window:e,interleave:t,samples:m,pool:n,width:i,height:s,resampleMethod:a,signal:l})}let h;switch(f){case P.WhiteIsZero:case P.BlackIsZero:case P.Palette:h=[0];break;case P.CMYK:h=[0,1,2,3];break;case P.YCbCr:case P.CIELab:h=[0,1,2];break;default:throw new Error("Invalid or unsupported photometric interpretation.")}const d={window:c,interleave:!0,samples:h,pool:n,width:i,height:s,resampleMethod:a,signal:l},{fileDirectory:g}=this,u=await this.readRasters(d),p=2**this.fileDirectory.BitsPerSample[0];let y;switch(f){case P.WhiteIsZero:y=yt(u,p);break;case P.BlackIsZero:y=dt(u,p);break;case P.Palette:y=pt(u,g.ColorMap);break;case P.CMYK:y=xt(u);break;case P.YCbCr:y=wt(u);break;case P.CIELab:y=Dt(u);break;default:throw new Error("Unsupported photometric interpretation.")}if(!t){const m=new Uint8Array(y.length/3),x=new Uint8Array(y.length/3),A=new Uint8Array(y.length/3);for(let D=0,T=0;D<y.length;D+=3,++T)m[T]=y[D],x[T]=y[D+1],A[T]=y[D+2];y=[m,x,A]}return y.width=u.width,y.height=u.height,y}getTiePoints(){if(!this.fileDirectory.ModelTiepoint)return[];const e=[];for(let t=0;t<this.fileDirectory.ModelTiepoint.length;t+=6)e.push({i:this.fileDirectory.ModelTiepoint[t],j:this.fileDirectory.ModelTiepoint[t+1],k:this.fileDirectory.ModelTiepoint[t+2],x:this.fileDirectory.ModelTiepoint[t+3],y:this.fileDirectory.ModelTiepoint[t+4],z:this.fileDirectory.ModelTiepoint[t+5]});return e}getGDALMetadata(e=null){const t={};if(!this.fileDirectory.GDAL_METADATA)return null;const n=this.fileDirectory.GDAL_METADATA;let i=ft(n,"Item");e===null?i=i.filter(s=>ee(s,"sample")===void 0):i=i.filter(s=>Number(ee(s,"sample"))===e);for(let s=0;s<i.length;++s){const a=i[s];t[ee(a,"name")]=a.inner}return t}getGDALNoData(){if(!this.fileDirectory.GDAL_NODATA)return null;const e=this.fileDirectory.GDAL_NODATA;return Number(e.substring(0,e.length-1))}getOrigin(){const e=this.fileDirectory.ModelTiepoint,t=this.fileDirectory.ModelTransformation;if(e&&e.length===6)return[e[3],e[4],e[5]];if(t)return[t[3],t[7],t[11]];throw new Error("The image does not have an affine transformation.")}getResolution(e=null){const t=this.fileDirectory.ModelPixelScale,n=this.fileDirectory.ModelTransformation;if(t)return[t[0],-t[1],t[2]];if(n)return n[1]===0&&n[4]===0?[n[0],-n[5],n[10]]:[Math.sqrt(n[0]*n[0]+n[4]*n[4]),-Math.sqrt(n[1]*n[1]+n[5]*n[5]),n[10]];if(e){const[i,s,a]=e.getResolution();return[i*e.getWidth()/this.getWidth(),s*e.getHeight()/this.getHeight(),a*e.getWidth()/this.getWidth()]}throw new Error("The image does not have an affine transformation.")}pixelIsArea(){return this.geoKeys.GTRasterTypeGeoKey===1}getBoundingBox(e=!1){const t=this.getHeight(),n=this.getWidth();if(this.fileDirectory.ModelTransformation&&!e){const[i,s,a,o,l,c,f,h]=this.fileDirectory.ModelTransformation,g=[[0,0],[0,t],[n,0],[n,t]].map(([y,m])=>[o+i*y+s*m,h+l*y+c*m]),u=g.map(y=>y[0]),p=g.map(y=>y[1]);return[Math.min(...u),Math.min(...p),Math.max(...u),Math.max(...p)]}else{const i=this.getOrigin(),s=this.getResolution(),a=i[0],o=i[1],l=a+s[0]*n,c=o+s[1]*t;return[Math.min(a,l),Math.min(o,c),Math.max(a,l),Math.max(o,c)]}}}class Lt{constructor(e){this._dataView=new DataView(e)}get buffer(){return this._dataView.buffer}

4getUint64(e,t){const n=this.getUint32(e,t),i=this.getUint32(e+4,t);let s;if(t){if(s=n+2**32*i,!Number.isSafeInteger(s))throw new Error(`${s} exceeds MAX_SAFE_INTEGER. Precision may be lost. Please report if you get this message to https://github.com/geotiffjs/geotiff.js/issues`);return s}if(s=2**32*n+i,!Number.isSafeInteger(s))throw new Error(`${s} exceeds MAX_SAFE_INTEGER. Precision may be lost. Please report if you get this message to https://github.com/geotiffjs/geotiff.js/issues`);return s}getInt64(e,t){let n=0;const i=(this._dataView.getUint8(e+(t?7:0))&128)>0;let s=!0;for(let a=0;a<8;a++){let o=this._dataView.getUint8(e+(t?a:7-a));i&&(s?o!==0&&(o=~(o-1)&255,s=!1):o=~o&255),n+=o*256**a}return i&&(n=-n),n}getUint8(e,t){return this._dataView.getUint8(e,t)}getInt8(e,t){return this._dataView.getInt8(e,t)}getUint16(e,t){return this._dataView.getUint16(e,t)}getInt16(e,t){return this._dataView.getInt16(e,t)}getUint32(e,t){return this._dataView.getUint32(e,t)}getInt32(e,t){return this._dataView.getInt32(e,t)}getFloat16(e,t){return Oe(this._dataView,e,t)}getFloat32(e,t){return this._dataView.getFloat32(e,t)}getFloat64(e,t){return this._dataView.getFloat64(e,t)}}class Nt{constructor(e,t,n,i){this._dataView=new DataView(e),this._sliceOffset=t,this._littleEndian=n,this._bigTiff=i}get sliceOffset(){return this._sliceOffset}get sliceTop(){return this._sliceOffset+this.buffer.byteLength}get littleEndian(){return this._littleEndian}get bigTiff(){return this._bigTiff}get buffer(){return this._dataView.buffer}covers(e,t){return this.sliceOffset<=e&&this.sliceTop>=e+t}readUint8(e){return this._dataView.getUint8(e-this._sliceOffset,this._littleEndian)}readInt8(e){return this._dataView.getInt8(e-this._sliceOffset,this._littleEndian)}readUint16(e){return this._dataView.getUint16(e-this._sliceOffset,this._littleEndian)}readInt16(e){return this._dataView.getInt16(e-this._sliceOffset,this._littleEndian)}readUint32(e){return this._dataView.getUint32(e-this._sliceOffset,this._littleEndian)}readInt32(e){return this._dataView.getInt32(e-this._sliceOffset,this._littleEndian)}readFloat32(e){return this._dataView.getFloat32(e-this._sliceOffset,this._littleEndian)}readFloat64(e){return this._dataView.getFloat64(e-this._sliceOffset,this._littleEndian)}readUint64(e){const t=this.readUint32(e),n=this.readUint32(e+4);let i;if(this._littleEndian){if(i=t+2**32*n,!Number.isSafeInteger(i))throw new Error(`${i} exceeds MAX_SAFE_INTEGER. Precision may be lost. Please report if you get this message to https://github.com/geotiffjs/geotiff.js/issues`);return i}if(i=2**32*t+n,!Number.isSafeInteger(i))throw new Error(`${i} exceeds MAX_SAFE_INTEGER. Precision may be lost. Please report if you get this message to https://github.com/geotiffjs/geotiff.js/issues`);return i}readInt64(e){let t=0;const n=(this._dataView.getUint8(e+(this._littleEndian?7:0))&128)>0;let i=!0;for(let s=0;s<8;s++){let a=this._dataView.getUint8(e+(this._littleEndian?s:7-s));n&&(i?a!==0&&(a=~(a-1)&255,i=!1):a=~a&255),t+=a*256**s}return n&&(t=-t),t}readOffset(e){return this._bigTiff?this.readUint64(e):this.readUint32(e)}}class Vt{async fetch(e,t=void 0){return Promise.all(e.map(n=>this.fetchSlice(n,t)))}async fetchSlice(e){throw new Error(`fetching of slice ${e} not possible, not implemented`)}get fileSize(){return null}async close(){}}class fe extends Error{constructor(e){super(e),Error.captureStackTrace&&Error.captureStackTrace(this,fe),this.name="AbortError"}}class Kt extends Vt{constructor(e){super(),this.arrayBuffer=e}fetchSlice(e,t){if(t&&t.aborted)throw new fe("Request aborted");return this.arrayBuffer.slice(e.offset,e.offset+e.length)}}function vt(r){return new Kt(r)}function kt(r,e){let t=r.length-e,n=0;do{for(let i=e;i>0;i--)r[n+e]+=r[n],n++;t-=e}while(t>0)}function jt(r,e,t){let n=0,i=r.length;const s=i/t;for(;i>e;){for(let o=e;o>0;--o)r[n+e]+=r[n],++n;i-=e}const a=r.slice();for(let o=0;o<s;++o)for(let l=0;l<t;++l)r[t*o+l]=a[(t-l-1)*s+o]}function Yt(r,e,t,n,i,s){if(e===1)return r;for(let l=0;l<i.length;++l){if(i[l]%8!==0)throw new Error("When decoding with predictor, only multiple of 8 bits are supported.");

4if(i[l]!==i[0])throw new Error("When decoding with predictor, all samples must have the same size.")}const a=i[0]/8,o=s===2?1:i.length;for(let l=0;l<n&&!(l*o*t*a>=r.byteLength);++l){let c;if(e===2){switch(i[0]){case 8:c=new Uint8Array(r,l*o*t*a,o*t*a);break;case 16:c=new Uint16Array(r,l*o*t*a,o*t*a/2);break;case 32:c=new Uint32Array(r,l*o*t*a,o*t*a/4);break;default:throw new Error(`Predictor 2 not allowed with ${i[0]} bits per sample.`)}kt(c,o)}else e===3&&(c=new Uint8Array(r,l*o*t*a,o*t*a),jt(c,o,a))}return r}class Zt{async decode(e,t){const n=await this.decodeBlock(t),i=e.Predictor||1;if(i!==1){const s=!e.StripOffsets,a=s?e.TileWidth:e.ImageWidth,o=s?e.TileLength:e.RowsPerStrip||e.ImageLength;return Yt(n,i,a,o,e.BitsPerSample,e.PlanarConfiguration)}return n}}function ne(r){switch(r){case w.BYTE:case w.ASCII:case w.SBYTE:case w.UNDEFINED:return 1;case w.SHORT:case w.SSHORT:return 2;case w.LONG:case w.SLONG:case w.FLOAT:case w.IFD:return 4;case w.RATIONAL:case w.SRATIONAL:case w.DOUBLE:case w.LONG8:case w.SLONG8:case w.IFD8:return 8;default:throw new RangeError(`Invalid field type: ${r}`)}}function Xt(r){const e=r.GeoKeyDirectory;if(!e)return null;const t={};for(let n=4;n<=e[3]*4;n+=4){const i=gt[e[n]],s=e[n+1]?k[e[n+1]]:null,a=e[n+2],o=e[n+3];let l=null;if(!s)l=o;else{if(l=r[s],typeof l>"u"||l===null)throw new Error(`Could not get value of geoKey '${i}'.`);typeof l=="string"?l=l.substring(o,o+a-1):l.subarray&&(l=l.subarray(o,o+a),a===1&&(l=l[0]))}t[i]=l}return t}function B(r,e,t,n){let i=null,s=null;const a=ne(e);switch(e){case w.BYTE:case w.ASCII:case w.UNDEFINED:i=new Uint8Array(t),s=r.readUint8;break;case w.SBYTE:i=new Int8Array(t),s=r.readInt8;break;case w.SHORT:i=new Uint16Array(t),s=r.readUint16;break;case w.SSHORT:i=new Int16Array(t),s=r.readInt16;break;case w.LONG:case w.IFD:i=new Uint32Array(t),s=r.readUint32;break;case w.SLONG:i=new Int32Array(t),s=r.readInt32;break;case w.LONG8:case w.IFD8:i=new Array(t),s=r.readUint64;break;case w.SLONG8:i=new Array(t),s=r.readInt64;break;case w.RATIONAL:i=new Uint32Array(t*2),s=r.readUint32;break;case w.SRATIONAL:i=new Int32Array(t*2),s=r.readInt32;break;case w.FLOAT:i=new Float32Array(t),s=r.readFloat32;break;case w.DOUBLE:i=new Float64Array(t),s=r.readFloat64;break;default:throw new RangeError(`Invalid field type: ${e}`)}if(e===w.RATIONAL||e===w.SRATIONAL)for(let o=0;o<t;o+=2)i[o]=s.call(r,n+o*a),i[o+1]=s.call(r,n+(o*a+4));else for(let o=0;o<t;++o)i[o]=s.call(r,n+o*a);return e===w.ASCII?new TextDecoder("utf-8").decode(i):i}class qt{constructor(e,t,n,i){this.fileDirectory=e,this.rawFileDirectory=t,this.geoKeyDirectory=n,this.nextIFDByteOffset=i}}

4class Z extends Error{constructor(e){super(`No image at index ${e}`),this.index=e}}class zt{async readRasters(e={}){const{window:t,width:n,height:i}=e;let{resX:s,resY:a,bbox:o}=e;const l=await this.getImage();let c=l;const f=await this.getImageCount(),h=l.getBoundingBox();if(t&&o)throw new Error('Both "bbox" and "window" passed.');if(n||i){if(t){const[u,p]=l.getOrigin(),[y,m]=l.getResolution();o=[u+t[0]*y,p+t[1]*m,u+t[2]*y,p+t[3]*m]}const g=o||h;if(n){if(s)throw new Error("Both width and resX passed");s=(g[2]-g[0])/n}if(i){if(a)throw new Error("Both width and resY passed");a=(g[3]-g[1])/i}}if(s||a){const g=[];for(let u=0;u<f;++u){const p=await this.getImage(u),{SubfileType:y,NewSubfileType:m}=p.fileDirectory;(u===0||y===2||m&1)&&g.push(p)}g.sort((u,p)=>u.getWidth()-p.getWidth());for(let u=0;u<g.length;++u){const p=g[u],y=(h[2]-h[0])/p.getWidth(),m=(h[3]-h[1])/p.getHeight();if(c=p,s&&s>y||a&&a>m)break}}let d=t;if(o){const[g,u]=l.getOrigin(),[p,y]=c.getResolution(l);d=[Math.round((o[0]-g)/p),Math.round((o[1]-u)/y),Math.round((o[2]-g)/p),Math.round((o[3]-u)/y)],d=[Math.min(d[0],d[2]),Math.min(d[1],d[3]),Math.max(d[0],d[2]),Math.max(d[1],d[3])]}return c.readRasters({...e,window:d})}}class he extends zt{constructor(e,t,n,i,s={}){super(),this.source=e,this.littleEndian=t,this.bigTiff=n,this.firstIFDOffset=i,this.cache=s.cache||!1,this.ifdRequests=[],this.ghostValues=null}async getSlice(e,t){const n=this.bigTiff?4048:1024;return new Nt((await this.source.fetch([{offset:e,length:typeof t<"u"?t:n}]))[0],e,this.littleEndian,this.bigTiff)}async parseFileDirectoryAt(e){const t=this.bigTiff?20:12,n=this.bigTiff?8:2;

4let i=await this.getSlice(e);const s=this.bigTiff?i.readUint64(e):i.readUint16(e),a=s*t+(this.bigTiff?16:6);i.covers(e,a)||(i=await this.getSlice(e,a));const o={},l=new Map;let c=e+(this.bigTiff?8:2);for(let d=0;d<s;c+=t,++d){const g=i.readUint16(c),u=i.readUint16(c+2),p=this.bigTiff?i.readUint64(c+4):i.readUint32(c+4);let y,m;const x=ne(u),A=c+(this.bigTiff?12:8);if(x*p<=(this.bigTiff?8:4))y=B(i,u,p,A);else{const T=i.readOffset(A),I=ne(u)*p;if(i.covers(T,I))y=B(i,u,p,T);else{const U=await this.getSlice(T,I);y=B(U,u,p,T)}}p===1&&ht.indexOf(g)===-1&&!(u===w.RATIONAL||u===w.SRATIONAL)?m=y[0]:m=y;const D=k[g];D&&(o[D]=m),l.set(g,m)}const f=Xt(o),h=i.readOffset(e+n+t*s);return new qt(o,l,f,h)}async requestIFD(e){if(this.ifdRequests[e])return this.ifdRequests[e];if(e===0)return this.ifdRequests[e]=this.parseFileDirectoryAt(this.firstIFDOffset),this.ifdRequests[e];if(!this.ifdRequests[e-1])try{this.ifdRequests[e-1]=this.requestIFD(e-1)}catch(t){throw t instanceof Z?new Z(e):t}return this.ifdRequests[e]=(async()=>{const t=await this.ifdRequests[e-1];if(t.nextIFDByteOffset===0)throw new Z(e);return this.parseFileDirectoryAt(t.nextIFDByteOffset)})(),this.ifdRequests[e]}async getImage(e=0){const t=await this.requestIFD(e);return new Rt(t.fileDirectory,t.geoKeyDirectory,this.dataView,this.littleEndian,this.cache,this.source)}async getImageCount(){let e=0,t=!0;for(;t;)try{await this.requestIFD(e),++e}catch(n){if(n instanceof Z)t=!1;else throw n}return e}async getGhostValues(){const e=this.bigTiff?16:8;if(this.ghostValues)return this.ghostValues;const t="GDAL_STRUCTURAL_METADATA_SIZE=",n=t.length+100;

4let i=await this.getSlice(e,n);if(t===B(i,w.ASCII,t.length,e)){const a=B(i,w.ASCII,n,e).split(`
5`)[0],o=Number(a.split("=")[1].split(" ")[0])+a.length;o>n&&(i=await this.getSlice(e,o));const l=B(i,w.ASCII,o,e);this.ghostValues={},l.split(`
6`).filter(c=>c.length>0).map(c=>c.split("=")).forEach(([c,f])=>{this.ghostValues[c]=f})}return this.ghostValues}static async fromSource(e,t,n){const i=(await e.fetch([{offset:0,length:1024}],n))[0],s=new Lt(i),a=s.getUint16(0,0);let o;if(a===18761)o=!0;else if(a===19789)o=!1;else throw new TypeError("Invalid byte order value.");const l=s.getUint16(2,o);let c;if(l===42)c=!1;else if(l===43){if(c=!0,s.getUint16(4,o)!==8)throw new Error("Unsupported offset byte-size.")}else throw new TypeError("Invalid magic number.");const f=c?s.getUint64(8,o):s.getUint32(4,o);return new he(e,o,c,f,t)}close(){return typeof this.source.close=="function"?this.source.close():!1}}async function Jt(r,e){return he.fromSource(vt(r),e)}export{Zt as B,Ht as L,$t as a,Jt as f};