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@arcgis/core

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

js.arcgis.com

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/* All material copyright ESRI, All Rights Reserved, unless otherwise specified. See https://js.arcgis.com/4.32/esri/copyright.txt for details. */ import"../../../core/has.js";import{bytesToUTF8 as e}from"../rasterDatasets/byteStreamUtils.js";import{J as t}from"../../../chunks/Jpg.js";import{load as n,decode as a}from"./Lerc.js";import{decode as i}from"./Lzw.js";import{convertNoDataToMask as s}from"./pixelRangeUtils.js";import r from"./TiffTags.js";import{isPlatformLittleEndian as l}from"./utils.js";import{Z as o}from"../../../chunks/Zlib.js";const f=[0,1,1,2,4,8,1,1,2,4,8,4,8,-1,-1,-1,8,8,8],u=4294967296,c=new Set([1,5,6,7,8,34712,34887]);function h(e,t){let n="unknown";return 3===e?n=64===t?"f64":"f32":1===e?1===t?n="u1":2===t?n="u2":4===t?n="u4":t<=8?n="u8":t<=16?n="u16":t<=32&&(n="u32"):2===e&&(t<=8?n="s8":t<=16?n="s16":t<=32&&(n="s32")),n}function g(e){let t=null;switch(e?e.toLowerCase():"f32"){case"u1":case"u2":case"u4":case"u8":t=Uint8Array;break;case"u16":t=Uint16Array;break;case"u32":t=Uint32Array;break;case"s8":t=Int8Array;break;case"s16":t=Int16Array;break;case"s32":t=Int32Array;break;case"f64":t=Float64Array;break;default:t=Float32Array}return t}function E(e,t){return{x:t[0]*e.x+t[1]*e.y+t[2],y:t[3]*e.x+t[4]*e.y+t[5]}}function T(e,t){return e.get(t)?.values}function I(e,t){return e.get(t)?.values}function w(e,t){return e.get(t)?.values?.[0]}function p(e,t){return e.get(t)?.values?.[0]}function d(e,t,n,a=0,i=r.tiffTags,s=4){const l=8===s,o=l?C(new DataView(e,n,8),0,t):new DataView(e,n,2).getUint16(0,t),f=4+2*s,u=l?8:2,c=u+o*f;if(n+c>e.byteLength)return{success:!1,ifd:null,nextIFD:null,requiredBufferSize:c};const h=n+c+4<=e.byteLength?v(new DataView(e,n+c,8===s?8:4),0,t,8===s):null,g=n+u,E=new Map;let T,I,w,p,d,m=0,y=0;for(let A=0;A<o;A++){I=new DataView(e,g+f*A,f),w=I.getUint16(0,t),d=I.getUint16(2,t),p=r.getTagName(w,i);const n=[];2===s?(m=I.getUint16(4,t),y=I.getUint16(6,t)):4===s?(m=I.getUint32(4,t),y=I.getUint32(8,t)):8===s&&(m=v(I,4,t,!0),y=v(I,12,t,!0),n.push(I.getUint32(12,t)),n.push(I.getUint32(16,t))),T={id:w,type:d,valueCount:m,valueOffset:y,valueOffsets:n,values:null},L(e,t,T,a,!1,s),E.set(p,T)}return{success:!0,ifd:E,nextIFD:h,requiredBufferSize:c}}const m=(e,t)=>a(e,{inputOffset:t}).pixels[0];function y(e,t){if(1!==t&&2!==t&&4!==t)return e;const n=new Uint8Array(e),a=8/t,i=new Uint8Array(e.byteLength*a);let s=0;const r=2**t-1;for(let l=0;l<n.length;l++){const e=n[l];for(let n=0;n<a;n++)i[s++]=e<<t*n>>>8-t&r}return i.buffer}function A(e,n,a){const i=new t;i.parse(e),i.colorTransform=6===a?-1:0;const s=i.getData(i.width,i.height,1!==n&&4!==n);return new Uint8Array(s.buffer)}function S(e){const t=new o(e).getBytes(),n=new ArrayBuffer(t.length),a=new Uint8Array(n);return a.set(t),a}async function M(e,t,a,s,r){const o=l===t,f=p(a,"BITSPERSAMPLE"),u=p(a,"SAMPLESPERPIXEL")??1,c=p(a,"PHOTOMETRICINTERPRETATION"),E=p(a,"SAMPLEFORMAT")??1,T=h(E,f),I=p(a,"COMPRESSION")??1,w=g(T);let d,M,P;if(34887===I)return await n(),m(e,s);if(1===I)d=e.slice(s,s+r),M=new Uint8Array(d);else if(8===I||32946===I)M=new Uint8Array(e,s,r),M=S(M),d=M.buffer;else if(6===I)M=new Uint8Array(e,s,r),M=A(M,u,c),d=M.buffer;else if(7===I){const t=a.get("JPEGTABLES").values,n=t.length-2;M=new Uint8Array(n+r-2);for(let e=0;e<n;e++)M[e]=t[e];const i=new Uint8Array(e,s+2,r-2);for(let e=0;e<i.length;e++)M[n+e]=i[e];M=A(M,u,c),d=M.buffer}else{if(5!==I)throw new Error("tiff-decode: unsupport compression "+I);M=i(e,s,r,t),d=M.buffer}if(d=y(d,f),"u8"===T||"s8"===T||o)P=new w(d);else{d=new ArrayBuffer(M.length);const e=new Uint8Array(d);switch(T){case"u16":case"s16":for(let t=0;t<M.length;t+=2)e[t]=M[t+1],e[t+1]=M[t];break;case"u32":case"s32":case"f32":for(let t=0;t<M.length;t+=4)e[t]=M[t+3],e[t+1]=M[t+2],e[t+2]=M[t+1],e[t+3]=M[t]}P=new w(d)}const O=p(a,"PREDICTOR")??1,b=p(a,"TILEWIDTH"),x=p(a,"TILELENGTH");if(O>1&&(5===I||8===I||32946===I)&&b&&x){const e=R(a),t=new w(P.length);t.set(P),P=W(t,x,b,3===E&&3===O,e?1:u)}return P}async function P(e,t,n){const a=I(n,"TILEOFFSETS");if(void 0===a)return null;const i=I(n,"TILEBYTECOUNTS"),{width:s,height:r,pixelType:l,tileWidth:o,tileHeight:f}=D([n]),u=R(n,t),c=p(n,"SAMPLESPERPIXEL")||t.planes,h=s*r,E=p(n,"BITSPERSAMPLE"),T=34887===(p(n,"COMPRESSION")??1),w=g(l),d=[];for(let g=0;g<c;g++)d.push(new w(h));let m,y,A,S,P,O,b,x,L,N,U,k,C;const G=Math.ceil(s/o),v=new Uint8Array(h).fill(255);let F=!1;if(E%8==0)if(T&&u&&c>1){const l=Math.round(a.length/c);for(m=0;m<l;m++){O=Math.floor(m/G)*f,b=m%G*o,x=O*s+b;for(let l=0;l<c;l++){const u=m*c+l;for(0===i[u]?(A=null,F=!0):A=await M(e,t.littleEndian,n,a[u],i[u]),N=0,L=x,k=Math.min(o,s-b),U=Math.min(f,r-O),C=d[l],S=0;S<U;S++)for(L=x+S*s,N=S*o,P=0;P<k;P++,L++,N++)A?C[L]=A[N]:v[L]=0}}}else for(m=0;m<a.length;m++)for(O=Math.floor(m/G)*f,b=m%G*o,x=O*s+b,0===i[m]?(A=null,F=!0):A=await M(e,t.littleEndian,n,a[m],i[m]),N=0,L=x,k=Math.min(o,s-b),U=Math.min(f,r-O),y=0;y<c;y++)if(C=d[y],u||T)for(S=0;S<U;S++)for(L=x+S*s,N=o*f*y+S*o,P=0;P<k;P++,L++,N++)A?C[L]=A[N]:v[L]=0;else for(S=0;S<U;S++)for(L=x+S*s,N=S*o*c+y,P=0;P<k;P++,L++,N+=c)A?C[L]=A[N]:v[L]=0;return{width:s,height:r,pixelType:l,pixels:d,mask:F?v:void 0}}const O=(e,t,n)=>{const a=l===t.littleEndian,s=I(n,"STRIPOFFSETS");if(void 0===s)return null;const{width:r,height:o,pixelType:f}=D([n]),u=p(n,"SAMPLESPERPIXEL")||t.planes,c=p(n,"PHOTOMETRICINTERPRETATION"),h=r*o,E=p(n,"BITSPERSAMPLE"),T=g(f),w=new T(h*u),d=I(n,"STRIPBYTECOUNTS"),m=p(n,"ROWSPERSTRIP"),M=p(n,"COMPRESSION")??1;let P,O,b,x,L,R,N,U,k;if(E%8==0)for(P=0;P<s.length;P++){if(L=P*(m*r)*u,"u8"===f||"s8"===f||a)8===M||32946===M?(N=new Uint8Array(e,s[P],d[P]),N=S(N),R=N.buffer):6===M?(N=new Uint8Array(e,s[P],d[P]),N=A(N,u,c),R=N.buffer):5===M?(N=i(e,s[P],d[P],t.littleEndian),R=N.buffer):R=e.slice(s[P],s[P]+d[P]),R=y(R,E),x=new T(R);else{switch(6===M||8===M||32946===M?(N=new Uint8Array(e,s[P],d[P]),U=S(N),R=U.buffer):(R=new ArrayBuffer(d[P]),N=new Uint8Array(e,s[P],d[P]),U=new Uint8Array(R)),f){case"u16":case"s16":for(b=0;b<N.length;b+=2)U[b]=N[b+1],U[b+1]=N[b];break;case"u32":case"s32":case"f32":for(b=0;b<N.length;b+=4)U[b]=N[b+3],U[b+1]=N[b+2],U[b+2]=N[b+1],U[b+3]=N[b]}R=y(R,E),x=new T(R)}w.set(x,L)}const C=[];if(1===u)C.push(w);else for(P=0;P<u;P++){for(k=new T(h),O=0;O<h;O++)k[O]=w[O*u+P];C.push(k)}return{width:r,height:o,pixelType:f,pixels:C}},b=(e,t,n)=>{if(!(e.length>0&&t&&n))return null;let a,i,s;const r=e[0].length,l=e.length,o=new Uint8Array(r);for(let f=0;f<l;f++)if(a=e[f],i=t[f],s=n[f],0===f)for(let e=0;e<r;e++)o[e]=a[e]<i||a[e]>s?0:1;else for(let e=0;e<r;e++)o[e]&&(o[e]=a[e]<i||a[e]>s?0:1);return o},x=e=>{if(!e)return null;const t=e.match(/<Item(.*?)Item>/gi);if(!t||0===t.length)return null;const n=new Map;let a,i,s,r,l;for(let w=0;w<t.length;w++)a=t[w],i=a.slice(6,a.indexOf(">")),r=a.indexOf("sample="),r>-1&&(l=a.slice(r+8,a.indexOf('"',r+8))),r=a.indexOf("name="),r>-1&&(i=a.slice(r+6,a.indexOf('"',r+6))),i&&(s=a.slice(a.indexOf(">")+1,a.indexOf("</Item>")).trim(),null!=l?n.has(i)?n.get(i)[l]=s:n.set(i,[s]):n.set(i,s)),l=null;const o=n.get("STATISTICS_MINIMUM"),f=n.get("STATISTICS_MAXIMUM"),u=n.get("STATISTICS_MEAN"),c=n.get("STATISTICS_STDDEV");let h=null;if(o&&f){h=[];for(let e=0;e<o.length;e++)h.push({min:parseFloat(o[e]),max:parseFloat(f[e]),avg:u&&parseFloat(u[e]),stddev:c&&parseFloat(c[e])})}const g=n.get("BandName"),E=n.get("WavelengthMin"),T=n.get("WavelengthMax");let I=null;if(g){I=[];for(let e=0;e<g.length;e++)I.push({BandName:g[e],WavelengthMin:E&&parseFloat(E[e]),WavelengthMax:T&&parseFloat(T[e])})}return{statistics:h,bandProperties:I,dataType:n.get("DataType"),rawMetadata:n}};function 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DataView(e,n,4).getUint32(0,t);break;case 5:I=new DataView(e,n,4).getUint32(0,t)/new DataView(e,n+4,4).getUint32(0,t);break;case 6:I=new DataView(e,n,1).getInt8(0);break;case 8:I=new DataView(e,n,2).getInt16(0,t);break;case 9:I=new DataView(e,n,4).getInt32(0,t);break;case 10:I=new DataView(e,n,4).getInt32(0,t)/new DataView(e,n+4,4).getInt32(0,t);break;case 11:I=new DataView(e,n,4).getFloat32(0,t);break;case 12:I=new DataView(e,n,8).getFloat64(0,t);break;case 16:case 18:I=C(new DataView(e,n,8),0,t);break;case 17:I=G(new DataView(e,n,8),0,t);break;default:I=null}c.push(I)}}if(2===r){let e="";const t=c;for(c=[],w=0;w<t.length;w++)0===t[w]&&""!==e?(c.push(e),e=""):e+=String.fromCharCode(t[w]);""===e&&0!==c.length||c.push(e)}return n.values=c,!0}function D(e){const t=e[0],n=p(t,"TILEWIDTH"),a=p(t,"TILELENGTH"),i=p(t,"IMAGEWIDTH"),s=p(t,"IMAGELENGTH"),r=p(t,"BITSPERSAMPLE"),l=p(t,"SAMPLESPERPIXEL"),o=p(t,"SAMPLEFORMAT")??1,f=h(o,r),u=R(t),g=T(t,"GDAL_NODATA");let d=null;g?.length&&(d=g.map((e=>parseFloat(e))),d.some((e=>isNaN(e)))&&(d=null));const m=p(t,"COMPRESSION")??1;let y;switch(m){case 1:y="NONE";break;case 2:case 3:case 4:case 32771:y="CCITT";break;case 5:y="LZW";break;case 6:case 7:y="JPEG";break;case 32773:y="PACKBITS";break;case 8:case 32946:y="DEFLATE";break;case 34712:y="JPEG2000";break;case 34887:y="LERC";break;default:y=String(m)}let A=!0,S="";c.has(m)||(A=!1,S+="unsupported tag compression "+m),o>3&&(A=!1,S+="unsupported tag sampleFormat "+o),1!==r&&2!==r&&4!==r&&r%8!=0&&(A=!1,S+="unsupported tag bitsPerSample "+r);const M=w(t,"GEOASCIIPARAMS");let P;if(M){const e=M.split("|").find((e=>e.includes("ESRI PE String = "))),t=e?e.replace("ESRI PE String = ",""):"";P=t.startsWith("COMPD_CS")||t.startsWith("PROJCS")||t.startsWith("GEOGCS")?{wkid:null,wkt:t}:null}const O=I(t,"GEOTIEPOINTS"),b=I(t,"GEOPIXELSCALE"),L=I(t,"GEOTRANSMATRIX"),D=t.has("GEOKEYDIRECTORY")?t.get("GEOKEYDIRECTORY").data:null;let 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0;return{width:i,height:s,tileWidth:n,tileHeight:a,planes:l,isBSQ:u,pixelType:f,compression:y,noData:d,hasMaskBand:X,isSupported:A,pyramidResolutions:J,message:S,extent:C,isPseudoGeographic:v,affine:b?null:k,firstPyramidLevel:H,maximumPyramidLevel:Y,pyramidBlockWidth:B,pyramidBlockHeight:W,tileBoundary:_,metadata:K}}function R(e,t){const n=T(e,"PLANARCONFIGURATION");return n?2===n[0]:!!t&&t.isBSQ}function N(e){return e.filter((e=>1===p(e,"NEWSUBFILETYPE")))}function U(e){return e.filter((e=>{const t=!(4&~(p(e,"NEWSUBFILETYPE")??0)),n=4===p(e,"PHOTOMETRICINTERPRETATION");return t&&n}))}function k(e){const{littleEndian:t,isBigTiff:n,firstIFDPos:a}=F(e);let i=a;const s=[];do{const a=B(e,t,i,0,r.tiffTags,n?8:4);if(!a.success)break;s.push(a.ifd),i=a.nextIFD}while(i>0);return{...D(s),littleEndian:t,isBigTiff:n,ifds:s,pyramidIFDs:N(s),maskIFDs:U(s)}}function C(e,t,n){const a=e.getUint32(t,n),i=e.getUint32(t+4,n);return n?i*u+a:a*u+i}function G(e,t,n){let a=n?e.getInt32(t,n):e.getUint32(t,n),i=n?e.getUint32(t+4,n):e.getInt32(t+4,n);const s=(n?a:i)>=0?1:-1;n?a*=s:i*=s;return s*(n?i*u+a:a*u+i)}function v(e,t,n,a){return a?C(e,t,n):e.getUint32(t,n)}function F(e){const t=new DataView(e,0,16),n=t.getUint16(0,!1);let a=null;if(18761===n)a=!0;else{if(19789!==n)throw new Error("unexpected endianess byte");a=!1}const i=t.getUint16(2,a);if(42!==i&&43!==i)throw new Error("unexpected tiff identifier");let s=4;const r=43===i;if(r){const e=t.getUint16(s,a);if(s+=2,8!==e)throw new Error("unsupported bigtiff version");if(0!==t.getUint16(s,a))throw new Error("unsupported bigtiff version");s+=2}return{littleEndian:a,isBigTiff:r,firstIFDPos:v(t,s,a,r)}}function B(t,n,a,i=0,s=r.tiffTags,l=4){const o=d(t,n,a,i,s,l);let f;const u=o.ifd;if(u){if(r.ifdTags.forEach(((e,a)=>{u.has(a)&&(f=u.get(a),f.data=d(t,n,f.valueOffset-i,i,e).ifd)})),u.has("GEOKEYDIRECTORY")){f=u.get("GEOKEYDIRECTORY");const e=f.values;if(e&&e.length>4){const a=e[0]+"."+e[1]+"."+e[2];f.data=d(t,n,f.valueOffset+6-i,i,r.geoKeys,2).ifd,f.data&&f.data.set("GEOTIFFVersion",{id:0,type:2,valueCount:1,valueOffset:null,values:[a]})}}if(u.has("XMP")){f=u.get("XMP");const t=f.values;"number"==typeof t[0]&&7===f.type&&(f.values=[e(new Uint8Array(t))])}}return o}function V(e){const{width:t,height:n,tileHeight:a,tileWidth:i}=e,s=e.planes,r=i?i*a:t*n,l=p(e.ifds[0],"BITSPERSAMPLE");let o="";return r*s>2**30/(l>8?l/8:1)&&(o=i?"tiled tiff exceeding 1 gigabits per tile is not supported":"scanline tiff exceeding 1 gigabits is not supported"),o}function W(e,t,n,a,i){const s=a?4:1,r=n*s*i;a&&(e=new Uint8Array(e.buffer));for(let f=0;f<t;f++){const t=f*r;for(let n=i;n<r;n++)e[t+n]+=e[t+n-i]}if(!a)return e;const l=new Uint8Array(e.length),o=n*i;for(let f=0;f<t;f++){const t=f*r;for(let n=0;n<o;n++)for(let a=0;a<s;a++)l[t+n*s+a]=e[t+n+(s-a-1)*o]}return new Float32Array(l.buffer)}async function H(e,t){const{headerInfo:n,ifd:a,offsets:i,sizes:r}=t,l=[];for(let s=0;s<i.length;s++){r[s];const t=await M(e,n.littleEndian,a,i[s],r[s]||e.byteLength);l.push(t)}const o=R(a,n),f=p(a,"BITSPERSAMPLE"),u=h(p(a,"SAMPLEFORMAT")??1,f),c=p(a,"SAMPLESPERPIXEL")||n.planes,E=g(u),T=p(a,"TILEWIDTH"),I=p(a,"TILELENGTH"),w=p(a,"COMPRESSION")??1,d=T*I;let m;const y=[];let A=l[0];const S=34887===w;for(let s=0;s<c;s++){if(m=new E(d),l.length===c)A=l[s],A.length===d&&(m=A);else if(A.length)if(o||S)m=A.length===d?A:A.slice(d*s,d*(s+1));else for(let e=0;e<d;e++)m[e]=A[e*c+s];y.push(m)}const P=n.noData?n.noData[0]:t.noDataValue,O=n.metadata?n.metadata.statistics:null,x=O?O.map((e=>e.min)):null,L=O?O.map((e=>e.max)):null,D={pixelType:u,width:T,height:I,pixels:y,noDataValue:P};return null!=P?s(D,P,{matchAllNoData:t?.matchAllNoData}):x&&L&&t.applyMinMaxConstraint&&(D.mask=b(y,x,L)),D}async function Y(e,t={}){const n=t.pyramidLevel||0,a=t.headerInfo||k(e),{ifds:i,noData:r}=a;if(0===i.length)throw new Error("no valid image file directory");const l=V(a);if(l)throw l;let o=null;const f=-1===n?i[i.length-1]:i[n],u=r??t.noDataValue;if(o=a.tileWidth?await P(e,a,f):O(e,a,f),!o)return o;if(null!=u){s(o,u,{matchAllNoData:null==r&&t?.matchAllNoData})}return o}export{Y as decode,H as decodeTileOrStrip,D as getImageInfo,U as getMaskIFDs,N as getPyramidIFDs,R as isBSQConfig,L as parseFieldValues,k as parseHeader,B as parseIFD,F as parseSignature};