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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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/* COPYRIGHT Esri - https://js.arcgis.com/5.0.8/LICENSE.txt */ import"../../../core/has.js";import{bytesToUTF8 as e}from"../datasets/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 r}from"./pixelRangeUtils.js";import{tiffTags as s,ifdTags as l,getTagName as o,geoKeys as f}from"./tiffTag.js";import{isPlatformLittleEndian as u}from"./utils.js";import{Z as c}from"../../../chunks/Zlib.js";const h=[0,1,1,2,4,8,1,1,2,4,8,4,8,-1,-1,-1,8,8,8],g=4294967296,E=new Set([1,5,6,7,8,34712,34887]);function I(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 T(e){let 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0;return{width:i,height:r,tileWidth:n,tileHeight:a,planes:l,isBSQ:u,pixelType:f,compression:T,noData:h,hasMaskBand:K,isSupported:A,pyramidResolutions:J,message:S,extent:D,isPseudoGeographic:k,affine:b?null:R,firstPyramidLevel:W,maximumPyramidLevel:H,pyramidBlockWidth:B,pyramidBlockHeight:V,tileBoundary:Y,metadata:X}}function C(e,t){const n=p(e,"PLANARCONFIGURATION");return n?2===n[0]:!!t&&t.isBSQ}function G(e){return e.filter(e=>1===y(e,"NEWSUBFILETYPE"))}function v(e){return e.filter(e=>{const t=!(4&~(y(e,"NEWSUBFILETYPE")??0)),n=4===y(e,"PHOTOMETRICINTERPRETATION");return t&&n})}function F(e){const{littleEndian:t,isBigTiff:n,firstIFDPos:a}=H(e);let i=a;const r=[];do{const a=Y(e,t,i,0,s,n?8:4);if(!a.success)break;r.push(a.ifd),i=a.nextIFD}while(i>0);return{...k(r),littleEndian:t,isBigTiff:n,ifds:r,pyramidIFDs:G(r),maskIFDs:v(r)}}function B(e,t,n){const a=e.getUint32(t,n),i=e.getUint32(t+4,n);return n?i*g+a:a*g+i}function V(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 r=(n?a:i)>=0?1:-1;n?a*=r:i*=r;return r*(n?i*g+a:a*g+i)}function W(e,t,n,a){return a?B(e,t,n):e.getUint32(t,n)}function H(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 r=4;const s=43===i;if(s){const e=t.getUint16(r,a);if(r+=2,8!==e)throw new Error("unsupported bigtiff version");if(0!==t.getUint16(r,a))throw new Error("unsupported bigtiff version");r+=2}return{littleEndian:a,isBigTiff:s,firstIFDPos:W(t,r,a,s)}}function Y(t,n,a,i=0,r=s,o=4){const u=A(t,n,a,i,r,o);let c;const h=u.ifd;if(h){if(l.forEach((e,a)=>{h.has(a)&&(c=h.get(a),c.data=A(t,n,c.valueOffset-i,i,e).ifd)}),h.has("GEOKEYDIRECTORY")){c=h.get("GEOKEYDIRECTORY");const e=c.values;if(e&&e.length>4){const a=e[0]+"."+e[1]+"."+e[2];c.data=A(t,n,c.valueOffset+6-i,i,f,2).ifd,c.data&&c.data.set("GEOTIFFVersion",{id:0,type:2,valueCount:1,valueOffset:null,values:[a]})}}if(h.has("XMP")){c=h.get("XMP");const t=c.values;"number"==typeof t[0]&&7===c.type&&(c.values=[e(new Uint8Array(t))])}}return u}function _(e){const{width:t,height:n,tileHeight:a,tileWidth:i}=e,r=e.planes,s=i?i*a:t*n,l=y(e.ifds[0],"BITSPERSAMPLE");let o="";return s*r>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 j(e,t,n,a,i){const r=a?4:1,s=n*r*i;a&&(e=new Uint8Array(e.buffer));for(let f=0;f<t;f++){const t=f*s;for(let n=i;n<s;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*s;for(let n=0;n<o;n++)for(let a=0;a<r;a++)l[t+n*r+a]=e[t+n+(r-a-1)*o]}return new Float32Array(l.buffer)}async function X(e,t){const{headerInfo:n,ifd:a,offsets:i,sizes:s}=t,l=[];for(let r=0;r<i.length;r++){s[r];const t=await x(e,n.littleEndian,a,i[r],s[r]||e.byteLength);l.push(t)}const o=C(a,n),f=y(a,"BITSPERSAMPLE"),u=I(y(a,"SAMPLEFORMAT")??1,f),c=y(a,"SAMPLESPERPIXEL")||n.planes,h=T(u),g=y(a,"TILEWIDTH"),E=y(a,"TILELENGTH"),w=y(a,"COMPRESSION")??1,p=g*E;let d;const m=[];let A=l[0];const S=34887===w;for(let r=0;r<c;r++){if(d=new h(p),l.length===c)A=l[r],A.length===p&&(d=A);else if(A.length)if(o||S)d=A.length===p?A:A.slice(p*r,p*(r+1));else for(let e=0;e<p;e++)d[e]=A[e*c+r];m.push(d)}const M=n.noData?n.noData[0]:t.noDataValue,P=n.metadata?n.metadata.statistics:null,O=P?P.map(e=>e.min):null,b=P?P.map(e=>e.max):null,L={pixelType:u,width:g,height:E,pixels:m,noDataValue:M};return null!=M?r(L,M,{matchAllNoData:t?.matchAllNoData}):O&&b&&t.applyMinMaxConstraint&&(L.mask=D(m,O,b)),L}async function K(e,t={}){const n=t.pyramidLevel||0,a=t.headerInfo||F(e),{ifds:i,noData:s}=a;if(0===i.length)throw new Error("no valid image file directory");const l=_(a);if(l)throw l;let o=null;const f=-1===n?i[i.length-1]:i[n],u=s??t.noDataValue;if(o=a.tileWidth?await L(e,a,f):R(e,a,f),!o)return o;if(null!=u){r(o,u,{matchAllNoData:null==s&&t?.matchAllNoData})}return o}export{K as decode,X as decodeTileOrStrip,k as getImageInfo,v as getMaskIFDs,G as getPyramidIFDs,C as isBSQConfig,N as parseFieldValues,F as parseHeader,Y as parseIFD,H as parseSignature,M as unpackBits};