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<!DOCTYPE html>
<!--
============================================================================
webSMLM — a browser-based single-molecule localization microscopy tool.
© 2026 Hohlbein et al.
Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0):
https://creativecommons.org/licenses/by/4.0/
You may share and adapt this work, including commercially, provided you give
appropriate credit to Hohlbein et al.
The phasor localization algorithm implements Martens, Bader, Baas, Rieger &
Hohlbein, J. Chem. Phys. 148, 123311 (2018).
Bundled third-party decoders retain their own licenses (MIT):
pako — https://github.com/nodeca/pako
UTIF — https://github.com/photopea/UTIF.js
============================================================================
-->
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>webSMLM — browser single-molecule localization POC</title>
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Inlined TIFF stack decoding, so the app runs fully offline (file:// too).
pako (deflate) is loaded first; UTIF picks it up via the global for
zip/deflate-compressed TIFFs. Both are MIT-licensed:
pako https://github.com/nodeca/pako
UTIF https://github.com/photopea/UTIF.js
========================================================================= -->
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line below is the minified upstream bundle — do NOT hand-edit; replace the
whole line wholesale from https://github.com/nodeca/pako when updating. */
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t.insert=0,e===f?(U(t,!0),0===t.strm.avail_out?R:C):(t.strstart>t.block_start&&(U(t,!1),t.strm.avail_out),A)}),new M(4,4,8,4,j),new M(4,5,16,8,j),new M(4,6,32,32,j),new M(4,4,16,16,K),new M(8,16,32,32,K),new M(8,16,128,128,K),new M(8,32,128,256,K),new M(32,128,258,1024,K),new M(32,258,258,4096,K)],a.deflateInit=function(t,e){return G(t,e,p,15,8,0)},a.deflateInit2=G,a.deflateReset=q,a.deflateResetKeep=Y,a.deflateSetHeader=function(t,e){return t&&t.state?2!==t.state.wrap?g:(t.state.gzhead=e,b):g},a.deflate=function(t,e){var a,i,n,r;if(!t||!t.state||5<e||e<0)return t?N(t,g):g;if(i=t.state,!t.output||!t.input&&0!==t.avail_in||666===i.status&&e!==f)return 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A;if(0===t.lookahead)break}if(t.match_length=0,t.lookahead>=x&&0<t.strstart&&(i=s[n=t.strstart-1])===s[++n]&&i===s[++n]&&i===s[++n]){r=t.strstart+z;do{}while(i===s[++n]&&i===s[++n]&&i===s[++n]&&i===s[++n]&&i===s[++n]&&i===s[++n]&&i===s[++n]&&i===s[++n]&&n<r);t.match_length=z-(r-n),t.match_length>t.lookahead&&(t.match_length=t.lookahead)}if(t.match_length>=x?(a=h._tr_tally(t,1,t.match_length-x),t.lookahead-=t.match_length,t.strstart+=t.match_length,t.match_length=0):(a=h._tr_tally(t,0,t.window[t.strstart]),t.lookahead--,t.strstart++),a&&(U(t,!1),0===t.strm.avail_out))return A}return t.insert=0,e===f?(U(t,!0),0===t.strm.avail_out?R:C):t.last_lit&&(U(t,!1),0===t.strm.avail_out)?A:Z}(i,e):l[i.level].func(i,e);if(o!==R&&o!==C||(i.status=666),o===A||o===R)return 0===t.avail_out&&(i.last_flush=-1),b;if(o===Z&&(1===e?h._tr_align(i):5!==e&&(h._tr_stored_block(i,0,0,!1),3===e&&(D(i.head),0===i.lookahead&&(i.strstart=0,i.block_start=0,i.insert=0))),I(t),0===t.avail_out))return i.last_flush=-1,b}return e!==f?b:i.wrap<=0?1:(2===i.wrap?(T(i,255&t.adler),T(i,t.adler>>8&255),T(i,t.adler>>16&255),T(i,t.adler>>24&255),T(i,255&t.total_in),T(i,t.total_in>>8&255),T(i,t.total_in>>16&255),T(i,t.total_in>>24&255)):(F(i,t.adler>>>16),F(i,65535&t.adler)),I(t),0<i.wrap&&(i.wrap=-i.wrap),0!==i.pending?b:1)},a.deflateEnd=function(t){var e;return t&&t.state?(e=t.state.status)!==S&&69!==e&&73!==e&&91!==e&&103!==e&&e!==E&&666!==e?N(t,g):(t.state=null,e===E?N(t,-3):b):g},a.deflateSetDictionary=function(t,e){var a,i,n,r,s,o,l,h,d=e.length;if(!t||!t.state)return g;if(2===(r=(a=t.state).wrap)||1===r&&a.status!==S||a.lookahead)return g;for(1===r&&(t.adler=u(t.adler,e,d,0)),a.wrap=0,d>=a.w_size&&(0===r&&(D(a.head),a.strstart=0,a.block_start=0,a.insert=0),h=new _.Buf8(a.w_size),_.arraySet(h,e,d-a.w_size,a.w_size,0),e=h,d=a.w_size),s=t.avail_in,o=t.next_in,l=t.input,t.avail_in=d,t.next_in=0,t.input=e,H(a);a.lookahead>=x;){for(i=a.strstart,n=a.lookahead-(x-1);a.ins_h=(a.ins_h<<a.hash_shift^a.window[i+x-1])&a.hash_mask,a.prev[i&a.w_mask]=a.head[a.ins_h],a.head[a.ins_h]=i,i++,--n;);a.strstart=i,a.lookahead=x-1,H(a)}return a.strstart+=a.lookahead,a.block_start=a.strstart,a.insert=a.lookahead,a.lookahead=0,a.match_length=a.prev_length=x-1,a.match_available=0,t.next_in=o,t.input=l,t.avail_in=s,a.wrap=r,b},a.deflateInfo="pako deflate (from Nodeca project)"},{"../utils/common":3,"./adler32":5,"./crc32":7,"./messages":13,"./trees":14}],9:[function(t,e,a){"use strict";e.exports=function(){this.text=0,this.time=0,this.xflags=0,this.os=0,this.extra=null,this.extra_len=0,this.name="",this.comment="",this.hcrc=0,this.done=!1}},{}],10:[function(t,e,a){"use strict";e.exports=function(t,e){var a,i,n,r,s,o,l,h,d,f,_,u,c,b,g,m,w,p,v,k,y,x,z,B,S;a=t.state,i=t.next_in,B=t.input,n=i+(t.avail_in-5),r=t.next_out,S=t.output,s=r-(e-t.avail_out),o=r+(t.avail_out-257),l=a.dmax,h=a.wsize,d=a.whave,f=a.wnext,_=a.window,u=a.hold,c=a.bits,b=a.lencode,g=a.distcode,m=(1<<a.lenbits)-1,w=(1<<a.distbits)-1;t:do{c<15&&(u+=B[i++]<<c,c+=8,u+=B[i++]<<c,c+=8),p=b[u&m];e:for(;;){if(u>>>=v=p>>>24,c-=v,0===(v=p>>>16&255))S[r++]=65535&p;else{if(!(16&v)){if(0==(64&v)){p=b[(65535&p)+(u&(1<<v)-1)];continue e}if(32&v){a.mode=12;break t}t.msg="invalid literal/length code",a.mode=30;break t}k=65535&p,(v&=15)&&(c<v&&(u+=B[i++]<<c,c+=8),k+=u&(1<<v)-1,u>>>=v,c-=v),c<15&&(u+=B[i++]<<c,c+=8,u+=B[i++]<<c,c+=8),p=g[u&w];a:for(;;){if(u>>>=v=p>>>24,c-=v,!(16&(v=p>>>16&255))){if(0==(64&v)){p=g[(65535&p)+(u&(1<<v)-1)];continue a}t.msg="invalid distance code",a.mode=30;break t}if(y=65535&p,c<(v&=15)&&(u+=B[i++]<<c,(c+=8)<v&&(u+=B[i++]<<c,c+=8)),l<(y+=u&(1<<v)-1)){t.msg="invalid distance too far back",a.mode=30;break 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13:if(a.last){h>>>=7&d,d-=7&d,a.mode=27;break}for(;d<3;){if(0===o)break t;o--,h+=i[r++]<<d,d+=8}switch(a.last=1&h,d-=1,3&(h>>>=1)){case 0:a.mode=14;break;case 1:if(H(a),a.mode=20,6!==e)break;h>>>=2,d-=2;break t;case 2:a.mode=17;break;case 3:t.msg="invalid block type",a.mode=30}h>>>=2,d-=2;break;case 14:for(h>>>=7&d,d-=7&d;d<32;){if(0===o)break t;o--,h+=i[r++]<<d,d+=8}if((65535&h)!=(h>>>16^65535)){t.msg="invalid stored block lengths",a.mode=30;break}if(a.length=65535&h,d=h=0,a.mode=15,6===e)break t;case 15:a.mode=16;case 16:if(u=a.length){if(o<u&&(u=o),l<u&&(u=l),0===u)break t;Z.arraySet(n,i,r,u,s),o-=u,r+=u,l-=u,s+=u,a.length-=u;break}a.mode=12;break;case 17:for(;d<14;){if(0===o)break t;o--,h+=i[r++]<<d,d+=8}if(a.nlen=257+(31&h),h>>>=5,d-=5,a.ndist=1+(31&h),h>>>=5,d-=5,a.ncode=4+(15&h),h>>>=4,d-=4,286<a.nlen||30<a.ndist){t.msg="too many length or distance symbols",a.mode=30;break}a.have=0,a.mode=18;case 18:for(;a.have<a.ncode;){for(;d<3;){if(0===o)break t;o--,h+=i[r++]<<d,d+=8}a.lens[A[a.have++]]=7&h,h>>>=3,d-=3}for(;a.have<19;)a.lens[A[a.have++]]=0;if(a.lencode=a.lendyn,a.lenbits=7,z={bits:a.lenbits},x=O(0,a.lens,0,19,a.lencode,0,a.work,z),a.lenbits=z.bits,x){t.msg="invalid code lengths set",a.mode=30;break}a.have=0,a.mode=19;case 19:for(;a.have<a.nlen+a.ndist;){for(;m=(S=a.lencode[h&(1<<a.lenbits)-1])>>>16&255,w=65535&S,!((g=S>>>24)<=d);){if(0===o)break t;o--,h+=i[r++]<<d,d+=8}if(w<16)h>>>=g,d-=g,a.lens[a.have++]=w;else{if(16===w){for(B=g+2;d<B;){if(0===o)break t;o--,h+=i[r++]<<d,d+=8}if(h>>>=g,d-=g,0===a.have){t.msg="invalid bit length repeat",a.mode=30;break}y=a.lens[a.have-1],u=3+(3&h),h>>>=2,d-=2}else if(17===w){for(B=g+3;d<B;){if(0===o)break t;o--,h+=i[r++]<<d,d+=8}d-=g,y=0,u=3+(7&(h>>>=g)),h>>>=3,d-=3}else{for(B=g+7;d<B;){if(0===o)break t;o--,h+=i[r++]<<d,d+=8}d-=g,y=0,u=11+(127&(h>>>=g)),h>>>=7,d-=7}if(a.have+u>a.nlen+a.ndist){t.msg="invalid bit length 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t;o--,h+=i[r++]<<d,d+=8}if(m&&0==(240&m)){for(p=g,v=m,k=w;m=(S=a.lencode[k+((h&(1<<p+v)-1)>>p)])>>>16&255,w=65535&S,!(p+(g=S>>>24)<=d);){if(0===o)break t;o--,h+=i[r++]<<d,d+=8}h>>>=p,d-=p,a.back+=p}if(h>>>=g,d-=g,a.back+=g,a.length=w,0===m){a.mode=26;break}if(32&m){a.back=-1,a.mode=12;break}if(64&m){t.msg="invalid literal/length code",a.mode=30;break}a.extra=15&m,a.mode=22;case 22:if(a.extra){for(B=a.extra;d<B;){if(0===o)break t;o--,h+=i[r++]<<d,d+=8}a.length+=h&(1<<a.extra)-1,h>>>=a.extra,d-=a.extra,a.back+=a.extra}a.was=a.length,a.mode=23;case 23:for(;m=(S=a.distcode[h&(1<<a.distbits)-1])>>>16&255,w=65535&S,!((g=S>>>24)<=d);){if(0===o)break t;o--,h+=i[r++]<<d,d+=8}if(0==(240&m)){for(p=g,v=m,k=w;m=(S=a.distcode[k+((h&(1<<p+v)-1)>>p)])>>>16&255,w=65535&S,!(p+(g=S>>>24)<=d);){if(0===o)break t;o--,h+=i[r++]<<d,d+=8}h>>>=p,d-=p,a.back+=p}if(h>>>=g,d-=g,a.back+=g,64&m){t.msg="invalid distance code",a.mode=30;break}a.offset=w,a.extra=15&m,a.mode=24;case 24:if(a.extra){for(B=a.extra;d<B;){if(0===o)break t;o--,h+=i[r++]<<d,d+=8}a.offset+=h&(1<<a.extra)-1,h>>>=a.extra,d-=a.extra,a.back+=a.extra}if(a.offset>a.dmax){t.msg="invalid distance too far back",a.mode=30;break}a.mode=25;case 25:if(0===l)break t;if(u=_-l,a.offset>u){if((u=a.offset-u)>a.whave&&a.sane){t.msg="invalid distance too far back",a.mode=30;break}u>a.wnext?(u-=a.wnext,c=a.wsize-u):c=a.wnext-u,u>a.length&&(u=a.length),b=a.window}else b=n,c=s-a.offset,u=a.length;for(l<u&&(u=l),l-=u,a.length-=u;n[s++]=b[c++],--u;);0===a.length&&(a.mode=21);break;case 26:if(0===l)break t;n[s++]=a.length,l--,a.mode=21;break;case 27:if(a.wrap){for(;d<32;){if(0===o)break t;o--,h|=i[r++]<<d,d+=8}if(_-=l,t.total_out+=_,a.total+=_,_&&(t.adler=a.check=a.flags?C(a.check,n,_,s-_):R(a.check,n,_,s-_)),_=l,(a.flags?h:L(h))!==a.check){t.msg="incorrect data check",a.mode=30;break}d=h=0}a.mode=28;case 28:if(a.wrap&&a.flags){for(;d<32;){if(0===o)break t;o--,h+=i[r++]<<d,d+=8}if(h!==(4294967295&a.total)){t.msg="incorrect length check",a.mode=30;break}d=h=0}a.mode=29;case 29:x=1;break t;case 30:x=-3;break t;case 31:return-4;case 32:default:return T}return t.next_out=s,t.avail_out=l,t.next_in=r,t.avail_in=o,a.hold=h,a.bits=d,(a.wsize||_!==t.avail_out&&a.mode<30&&(a.mode<27||4!==e))&&j(t,t.output,t.next_out,_-t.avail_out)?(a.mode=31,-4):(f-=t.avail_in,_-=t.avail_out,t.total_in+=f,t.total_out+=_,a.total+=_,a.wrap&&_&&(t.adler=a.check=a.flags?C(a.check,n,_,t.next_out-_):R(a.check,n,_,t.next_out-_)),t.data_type=a.bits+(a.last?64:0)+(12===a.mode?128:0)+(20===a.mode||15===a.mode?256:0),(0===f&&0===_||4===e)&&x===U&&(x=-5),x)},a.inflateEnd=function(t){if(!t||!t.state)return T;var e=t.state;return e.window&&(e.window=null),t.state=null,U},a.inflateGetHeader=function(t,e){var a;return t&&t.state?0==(2&(a=t.state).wrap)?T:((a.head=e).done=!1,U):T},a.inflateSetDictionary=function(t,e){var a,i=e.length;return t&&t.state?0!==(a=t.state).wrap&&11!==a.mode?T:11===a.mode&&R(1,e,i,0)!==a.check?-3:j(t,e,i,i)?(a.mode=31,-4):(a.havedict=1,U):T},a.inflateInfo="pako inflate (from Nodeca project)"},{"../utils/common":3,"./adler32":5,"./crc32":7,"./inffast":10,"./inftrees":12}],12:[function(t,e,a){"use strict";var D=t("../utils/common"),I=[3,4,5,6,7,8,9,10,11,13,15,17,19,23,27,31,35,43,51,59,67,83,99,115,131,163,195,227,258,0,0],U=[16,16,16,16,16,16,16,16,17,17,17,17,18,18,18,18,19,19,19,19,20,20,20,20,21,21,21,21,16,72,78],T=[1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193,257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577,0,0],F=[16,16,16,16,17,17,18,18,19,19,20,20,21,21,22,22,23,23,24,24,25,25,26,26,27,27,28,28,29,29,64,64];e.exports=function(t,e,a,i,n,r,s,o){var l,h,d,f,_,u,c,b,g,m=o.bits,w=0,p=0,v=0,k=0,y=0,x=0,z=0,B=0,S=0,E=0,A=null,Z=0,R=new D.Buf16(16),C=new D.Buf16(16),N=null,O=0;for(w=0;w<=15;w++)R[w]=0;for(p=0;p<i;p++)R[e[a+p]]++;for(y=m,k=15;1<=k&&0===R[k];k--);if(k<y&&(y=k),0===k)return n[r++]=20971520,n[r++]=20971520,o.bits=1,0;for(v=1;v<k&&0===R[v];v++);for(y<v&&(y=v),w=B=1;w<=15;w++)if(B<<=1,(B-=R[w])<0)return-1;if(0<B&&(0===t||1!==k))return-1;for(C[1]=0,w=1;w<15;w++)C[w+1]=C[w]+R[w];for(p=0;p<i;p++)0!==e[a+p]&&(s[C[e[a+p]]++]=p);if(0===t?(A=N=s,u=19):1===t?(A=I,Z-=257,N=U,O-=257,u=256):(A=T,N=F,u=-1),w=v,_=r,z=p=E=0,d=-1,f=(S=1<<(x=y))-1,1===t&&852<S||2===t&&592<S)return 1;for(;;){for(c=w-z,s[p]<u?(b=0,g=s[p]):s[p]>u?(b=N[O+s[p]],g=A[Z+s[p]]):(b=96,g=0),l=1<<w-z,v=h=1<<x;n[_+(E>>z)+(h-=l)]=c<<24|b<<16|g|0,0!==h;);for(l=1<<w-1;E&l;)l>>=1;if(0!==l?(E&=l-1,E+=l):E=0,p++,0==--R[w]){if(w===k)break;w=e[a+s[p]]}if(y<w&&(E&f)!==d){for(0===z&&(z=y),_+=v,B=1<<(x=w-z);x+z<k&&!((B-=R[x+z])<=0);)x++,B<<=1;if(S+=1<<x,1===t&&852<S||2===t&&592<S)return 1;n[d=E&f]=y<<24|x<<16|_-r|0}}return 0!==E&&(n[_+E]=w-z<<24|64<<16|0),o.bits=y,0}},{"../utils/common":3}],13:[function(t,e,a){"use strict";e.exports={2:"need dictionary",1:"stream end",0:"","-1":"file error","-2":"stream error","-3":"data error","-4":"insufficient memory","-5":"buffer error","-6":"incompatible version"}},{}],14:[function(t,e,a){"use strict";var l=t("../utils/common"),o=0,h=1;function i(t){for(var e=t.length;0<=--e;)t[e]=0}var d=0,s=29,f=256,_=f+1+s,u=30,c=19,g=2*_+1,m=15,n=16,b=7,w=256,p=16,v=17,k=18,y=[0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0],x=[0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13],z=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7],B=[16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15],S=new Array(2*(_+2));i(S);var E=new Array(2*u);i(E);var A=new Array(512);i(A);var Z=new Array(256);i(Z);var R=new Array(s);i(R);var C,N,O,D=new Array(u);function 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M(t){8<t.bi_valid?T(t,t.bi_buf):0<t.bi_valid&&(t.pending_buf[t.pending++]=t.bi_buf),t.bi_buf=0,t.bi_valid=0}function P(t,e,a,i){var n=2*e,r=2*a;return t[n]<t[r]||t[n]===t[r]&&i[e]<=i[a]}function Y(t,e,a){for(var i=t.heap[a],n=a<<1;n<=t.heap_len&&(n<t.heap_len&&P(e,t.heap[n+1],t.heap[n],t.depth)&&n++,!P(e,i,t.heap[n],t.depth));)t.heap[a]=t.heap[n],a=n,n<<=1;t.heap[a]=i}function q(t,e,a){var i,n,r,s,o=0;if(0!==t.last_lit)for(;i=t.pending_buf[t.d_buf+2*o]<<8|t.pending_buf[t.d_buf+2*o+1],n=t.pending_buf[t.l_buf+o],o++,0===i?L(t,n,e):(L(t,(r=Z[n])+f+1,e),0!==(s=y[r])&&F(t,n-=R[r],s),L(t,r=U(--i),a),0!==(s=x[r])&&F(t,i-=D[r],s)),o<t.last_lit;);L(t,w,e)}function G(t,e){var a,i,n,r=e.dyn_tree,s=e.stat_desc.static_tree,o=e.stat_desc.has_stree,l=e.stat_desc.elems,h=-1;for(t.heap_len=0,t.heap_max=g,a=0;a<l;a++)0!==r[2*a]?(t.heap[++t.heap_len]=h=a,t.depth[a]=0):r[2*a+1]=0;for(;t.heap_len<2;)r[2*(n=t.heap[++t.heap_len]=h<2?++h:0)]=1,t.depth[n]=0,t.opt_len--,o&&(t.static_len-=s[2*n+1]);for(e.max_code=h,a=t.heap_len>>1;1<=a;a--)Y(t,r,a);for(n=l;a=t.heap[1],t.heap[1]=t.heap[t.heap_len--],Y(t,r,1),i=t.heap[1],t.heap[--t.heap_max]=a,t.heap[--t.heap_max]=i,r[2*n]=r[2*a]+r[2*i],t.depth[n]=(t.depth[a]>=t.depth[i]?t.depth[a]:t.depth[i])+1,r[2*a+1]=r[2*i+1]=n,t.heap[1]=n++,Y(t,r,1),2<=t.heap_len;);t.heap[--t.heap_max]=t.heap[1],function(t,e){var a,i,n,r,s,o,l=e.dyn_tree,h=e.max_code,d=e.stat_desc.static_tree,f=e.stat_desc.has_stree,_=e.stat_desc.extra_bits,u=e.stat_desc.extra_base,c=e.stat_desc.max_length,b=0;for(r=0;r<=m;r++)t.bl_count[r]=0;for(l[2*t.heap[t.heap_max]+1]=0,a=t.heap_max+1;a<g;a++)c<(r=l[2*l[2*(i=t.heap[a])+1]+1]+1)&&(r=c,b++),l[2*i+1]=r,h<i||(t.bl_count[r]++,s=0,u<=i&&(s=_[i-u]),o=l[2*i],t.opt_len+=o*(r+s),f&&(t.static_len+=o*(d[2*i+1]+s)));if(0!==b){do{for(r=c-1;0===t.bl_count[r];)r--;t.bl_count[r]--,t.bl_count[r+1]+=2,t.bl_count[c]--,b-=2}while(0<b);for(r=c;0!==r;r--)for(i=t.bl_count[r];0!==i;)h<(n=t.heap[--a])||(l[2*n+1]!==r&&(t.opt_len+=(r-l[2*n+1])*l[2*n],l[2*n+1]=r),i--)}}(t,e),j(r,h,t.bl_count)}function X(t,e,a){var i,n,r=-1,s=e[1],o=0,l=7,h=4;for(0===s&&(l=138,h=3),e[2*(a+1)+1]=65535,i=0;i<=a;i++)n=s,s=e[2*(i+1)+1],++o<l&&n===s||(o<h?t.bl_tree[2*n]+=o:0!==n?(n!==r&&t.bl_tree[2*n]++,t.bl_tree[2*p]++):o<=10?t.bl_tree[2*v]++:t.bl_tree[2*k]++,r=n,(o=0)===s?(l=138,h=3):n===s?(l=6,h=3):(l=7,h=4))}function 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(q&4294967288)<<3|q&7;for(h=0;h<d;h++)for(q=0|h*c,q=p*(q&4294967288)|(q&7)<<3,b=0;b<a;b++)r[C]=w[q+n[b]],C+=k}if(e=this.M)for(g=0;g<l;)for(f=q=0;q<k;q++,g++,f+=2)r[g]=(r[g]*e[f]>>8)+e[f+1];return r},w:function(){return this.A?!!this.A.W:3===this.i?0===this.B?!1:!0:1===this.B?!0:!1},I:function(a){for(var d,f,e,b=0,g=a.length;b<g;b+=3)d=a[b],f=a[b+1],e=a[b+2],a[b]=d-179.456+1.402*e,a[b+1]=d+135.459-.344*f-.714*e,a[b+2]=d-226.816+1.772*f;return a},K:function(a){for(var d,f,e,b,g=0,k=0,l=a.length;k<l;k+=
4)d=a[k],f=a[k+1],e=a[k+2],b=a[k+3],a[g++]=-122.67195406894+f*(-6.60635669420364E-5*f+4.37130475926232E-4*e-5.4080610064599E-5*d+4.8449797120281E-4*b-.154362151871126)+e*(-9.57964378445773E-4*e+8.17076911346625E-4*d-.00477271405408747*b+1.53380253221734)+d*(9.61250184130688E-4*d-.00266257332283933*b+.48357088451265)+b*(-3.36197177618394E-4*b+.484791561490776),a[g++]=107.268039397724+f*(2.19927104525741E-5*f-6.40992018297945E-4*e+6.59397001245577E-4*d+4.26105652938837E-4*b-.176491792462875)+e*(-7.78269941513683E-4*
e+.00130872261408275*d+7.70482631801132E-4*b-.151051492775562)+d*(.00126935368114843*d-.00265090189010898*b+.25802910206845)+b*(-3.18913117588328E-4*b-.213742400323665),a[g++]=-20.810012546947+f*(-5.70115196973677E-4*f-2.63409051004589E-5*e+.0020741088115012*d-.00288260236853442*b+.814272968359295)+e*(-1.53496057440975E-5*e-1.32689043961446E-4*d+5.60833691242812E-4*b-.195152027534049)+d*(.00174418132927582*d-.00255243321439347*b+.116935020465145)+b*(-3.43531996510555E-4*b+.24165260232407);return a.subarray(0,
g)},J:function(a){for(var d,f,e,b=0,g=a.length;b<g;b+=4)d=a[b],f=a[b+1],e=a[b+2],a[b]=434.456-d-1.402*e,a[b+1]=119.541-d+.344*f+.714*e,a[b+2]=481.816-d-1.772*f;return a},H:function(a){for(var d,f,e,b,g=0,k=1/255,l=0,r=a.length;l<r;l+=4)d=a[l]*k,f=a[l+1]*k,e=a[l+2]*k,b=a[l+3]*k,a[g++]=255+d*(-4.387332384609988*d+54.48615194189176*f+18.82290502165302*e+212.25662451639585*b-285.2331026137004)+f*(1.7149763477362134*f-5.6096736904047315*e-17.873870861415444*b-5.497006427196366)+e*(-2.5217340131683033*
e-21.248923337353073*b+17.5119270841813)-b*(21.86122147463605*b+189.48180835922747),a[g++]=255+d*(8.841041422036149*d+60.118027045597366*f+6.871425592049007*e+31.159100130055922*b-79.2970844816548)+f*(-15.310361306967817*f+17.575251261109482*e+131.35250912493976*b-190.9453302588951)+e*(4.444339102852739*e+9.8632861493405*b-24.86741582555878)-b*(20.737325471181034*b+187.80453709719578),a[g++]=255+d*(.8842522430003296*d+8.078677503112928*f+30.89978309703729*e-.23883238689178934*b-14.183576799673286)+
f*(10.49593273432072*f+63.02378494754052*e+50.606957656360734*b-112.23884253719248)+e*(.03296041114873217*e+115.60384449646641*b-193.58209356861505)-b*(22.33816807309886*b+180.12613974708367);return a.subarray(0,g)},getData:function(a,d,f){if(4<this.i)throw new D("Unsupported color mode");a=this.L(a,d);if(1===this.i&&f){f=a.length;d=new Uint8ClampedArray(3*f);for(var e=0,b=0;b<f;b++){var g=a[b];d[e++]=g;d[e++]=g;d[e++]=g}return d}if(3===this.i&&this.w())return this.I(a);if(4===this.i){if(this.w())return f?
this.K(a):this.J(a);if(f)return this.H(a)}return a}}; UTIF.JpegDecoder=g})()})();
//UTIF.JpegDecoder = PDFJS.JpegImage;
UTIF.encodeImage = function(rgba, w, h, metadata)
{
var idf = { "t256":[w], "t257":[h], "t258":[8,8,8,8], "t259":[1], "t262":[2], "t273":[1000], // strips offset
"t277":[4], "t278":[h], /* rows per strip */ "t279":[w*h*4], // strip byte counts
"t282":[1], "t283":[1], "t284":[1], "t286":[0], "t287":[0], "t296":[1], "t305": ["Photopea (UTIF.js)"], "t338":[1]
};
if (metadata) for (var i in metadata) idf[i] = metadata[i];
var prfx = new Uint8Array(UTIF.encode([idf]));
var img = new Uint8Array(rgba);
var data = new Uint8Array(1000+w*h*4);
for(var i=0; i<prfx.length; i++) data[i] = prfx[i];
for(var i=0; i<img .length; i++) data[1000+i] = img[i];
return data.buffer;
}
UTIF.encode = function(ifds)
{
var data = new Uint8Array(20000), offset = 4, bin = UTIF._binBE;
data[0]=77; data[1]=77; data[3]=42;
var ifdo = 8;
bin.writeUint(data, offset, ifdo); offset+=4;
for(var i=0; i<ifds.length; i++)
{
var noffs = UTIF._writeIFD(bin, data, ifdo, ifds[i]);
ifdo = noffs[1];
if(i<ifds.length-1) bin.writeUint(data, noffs[0], ifdo);
}
return data.slice(0, ifdo).buffer;
}
//UTIF.encode._writeIFD
UTIF.decode = function(buff)
{
UTIF.decode._decodeG3.allow2D = null;
var data = new Uint8Array(buff), offset = 0;
var id = UTIF._binBE.readASCII(data, offset, 2); offset+=2;
var bin = id=="II" ? UTIF._binLE : UTIF._binBE;
var num = bin.readUshort(data, offset); offset+=2;
var ifdo = bin.readUint(data, offset); offset+=4;
var ifds = [];
while(true) {
var noff = UTIF._readIFD(bin, data, ifdo, ifds, 0, false);
ifdo = bin.readUint(data, noff);
if(ifdo==0) break;
}
return ifds;
}
UTIF.decodeImage = function(buff, img, ifds)
{
var data = new Uint8Array(buff);
var id = UTIF._binBE.readASCII(data, 0, 2);
if(img["t256"]==null) return; // No width => probably not an image
img.isLE = id=="II";
img.width = img["t256"][0]; //delete img["t256"];
img.height = img["t257"][0]; //delete img["t257"];
var cmpr = img["t259"] ? img["t259"][0] : 1; //delete img["t259"];
var fo = img["t266"] ? img["t266"][0] : 1; //delete img["t266"];
if(img["t284"] && img["t284"][0]==2) log("PlanarConfiguration 2 should not be used!");
var bipp; // bits per pixel
if(img["t258"]) bipp = Math.min(32,img["t258"][0])*img["t258"].length;
else bipp = (img["t277"]?img["t277"][0]:1);
// Some .NEF files have t258==14, even though they use 16 bits per pixel
if(cmpr==1 && img["t279"]!=null && img["t278"] && img["t262"][0]==32803) {
bipp = Math.round((img["t279"][0]*8)/(img.width*img["t278"][0]));
}
var bipl = Math.ceil(img.width*bipp/8)*8;
var soff = img["t273"]; if(soff==null) soff = img["t324"];
var bcnt = img["t279"]; if(cmpr==1 && soff.length==1) bcnt = [img.height*(bipl>>>3)]; if(bcnt==null) bcnt = img["t325"];
var bytes = new Uint8Array(img.height*(bipl>>>3)), bilen = 0;
if(img["t322"]!=null) // tiled
{
var tw = img["t322"][0], th = img["t323"][0];
var tx = Math.floor((img.width + tw - 1) / tw);
var ty = Math.floor((img.height + th - 1) / th);
var tbuff = new Uint8Array(Math.ceil(tw*th*bipp/8)|0);
for(var y=0; y<ty; y++)
for(var x=0; x<tx; x++)
{
var i = y*tx+x; for(var j=0; j<tbuff.length; j++) tbuff[j]=0;
UTIF.decode._decompress(img,ifds, data, soff[i], bcnt[i], cmpr, tbuff, 0, fo);
// Might be required for 7 too. Need to check
if (cmpr==6) bytes = tbuff;
else UTIF._copyTile(tbuff, Math.ceil(tw*bipp/8)|0, th, bytes, Math.ceil(img.width*bipp/8)|0, img.height, Math.ceil(x*tw*bipp/8)|0, y*th);
}
bilen = bytes.length*8;
}
else // stripped
{
var rps = img["t278"] ? img["t278"][0] : img.height; rps = Math.min(rps, img.height);
for(var i=0; i<soff.length; i++)
{
UTIF.decode._decompress(img,ifds, data, soff[i], bcnt[i], cmpr, bytes, Math.ceil(bilen/8)|0, fo);
bilen += bipl * rps;
}
bilen = Math.min(bilen, bytes.length*8);
}
img.data = new Uint8Array(bytes.buffer, 0, Math.ceil(bilen/8)|0);
}
UTIF.decode._decompress = function(img,ifds, data, off, len, cmpr, tgt, toff, fo) // fill order
{
//console.log("compression", cmpr);
//var time = Date.now();
if(false) {}
else if(cmpr==1 || (len==tgt.length && cmpr!=32767)) for(var j=0; j<len; j++) tgt[toff+j] = data[off+j];
else if(cmpr==3) UTIF.decode._decodeG3 (data, off, len, tgt, toff, img.width, fo);
else if(cmpr==4) UTIF.decode._decodeG4 (data, off, len, tgt, toff, img.width, fo);
else if(cmpr==5) UTIF.decode._decodeLZW(data, off, tgt, toff);
else if(cmpr==6) UTIF.decode._decodeOldJPEG(img, data, off, len, tgt, toff);
else if(cmpr==7) UTIF.decode._decodeNewJPEG(img, data, off, len, tgt, toff);
else if(cmpr==8) { var src = new Uint8Array(data.buffer,off,len); var bin = pako["inflate"](src); for(var i=0; i<bin.length; i++) tgt[toff+i]=bin[i]; }
else if(cmpr==32767) UTIF.decode._decodeARW(img, data, off, len, tgt, toff);
else if(cmpr==32773) UTIF.decode._decodePackBits(data, off, len, tgt, toff);
else if(cmpr==32809) UTIF.decode._decodeThunder (data, off, len, tgt, toff);
else if(cmpr==34713) //for(var j=0; j<len; j++) tgt[toff+j] = data[off+j];
UTIF.decode._decodeNikon (img,ifds, data, off, len, tgt, toff);
else log("Unknown compression", cmpr);
//console.log(Date.now()-time);
var bps = (img["t258"]?Math.min(32,img["t258"][0]):1);
var noc = (img["t277"]?img["t277"][0]:1), bpp=(bps*noc)>>>3, h = (img["t278"] ? img["t278"][0] : img.height), bpl = Math.ceil(bps*noc*img.width/8);
// convert to Little Endian /*
if(bps==16 && !img.isLE && img["t33422"]==null) // not DNG
for(var y=0; y<h; y++) {
//console.log("fixing endianity");
var roff = toff+y*bpl;
for(var x=1; x<bpl; x+=2) { var t=tgt[roff+x]; tgt[roff+x]=tgt[roff+x-1]; tgt[roff+x-1]=t; }
} //*/
if(img["t317"] && img["t317"][0]==2)
{
for(var y=0; y<h; y++)
{
var ntoff = toff+y*bpl;
if(bps==16) for(var j=bpp; j<bpl; j+=2) {
var nv = ((tgt[ntoff+j+1]<<8)|tgt[ntoff+j]) + ((tgt[ntoff+j-bpp+1]<<8)|tgt[ntoff+j-bpp]);
tgt[ntoff+j] = nv&255; tgt[ntoff+j+1] = (nv>>>8)&255;
}
else if(noc==3) for(var j= 3; j<bpl; j+=3)
{
tgt[ntoff+j ] = (tgt[ntoff+j ] + tgt[ntoff+j-3])&255;
tgt[ntoff+j+1] = (tgt[ntoff+j+1] + tgt[ntoff+j-2])&255;
tgt[ntoff+j+2] = (tgt[ntoff+j+2] + tgt[ntoff+j-1])&255;
}
else for(var j=bpp; j<bpl; j++) tgt[ntoff+j] = (tgt[ntoff+j] + tgt[ntoff+j-bpp])&255;
}
}
}
UTIF.decode._ljpeg_diff = function(data, prm, huff) {
var getbithuff = UTIF.decode._getbithuff;
var len, diff;
len = getbithuff(data, prm, huff[0], huff);
diff = getbithuff(data, prm, len, 0);
if ((diff & (1 << (len-1))) == 0) diff -= (1 << len) - 1;
return diff;
}
UTIF.decode._decodeARW = function(img, inp, off, src_length, tgt, toff) {
var raw_width = img["t256"][0], height=img["t257"][0], tiff_bps=img["t258"][0];
var bin=(img.isLE ? UTIF._binLE : UTIF._binBE);
//console.log(raw_width, height, tiff_bps, raw_width*height, src_length);
var arw2 = (raw_width*height == src_length) || (raw_width*height*1.5 == src_length);
//arw2 = true;
//console.log("ARW2: ", arw2, raw_width*height, src_length, tgt.length);
if(!arw2) { //"sony_arw_load_raw"; // not arw2
height+=8;
var prm = [off,0,0,0];
var huff = new Uint16Array(32770);
var tab = [ 0xf11,0xf10,0xe0f,0xd0e,0xc0d,0xb0c,0xa0b,0x90a,0x809,
0x708,0x607,0x506,0x405,0x304,0x303,0x300,0x202,0x201 ];
var i, c, n, col, row, sum=0;
var ljpeg_diff = UTIF.decode._ljpeg_diff;
huff[0] = 15;
for (n=i=0; i < 18; i++) {
var lim = 32768 >>> (tab[i] >>> 8);
for(var c=0; c<lim; c++) huff[++n] = tab[i];
}
for (col = raw_width; col--; )
for (row=0; row < height+1; row+=2) {
if (row == height) row = 1;
sum += ljpeg_diff(inp, prm, huff);
if (row < height) {
var clr = (sum)&4095;
UTIF.decode._putsF(tgt, (row*raw_width+col)*tiff_bps, clr<<(16-tiff_bps));
}
}
return;
}
if(raw_width*height*1.5==src_length) {
//console.log("weird compression");
for(var i=0; i<src_length; i+=3) { var b0=inp[off+i+0], b1=inp[off+i+1], b2=inp[off+i+2];
tgt[toff+i]=(b1<<4)|(b0>>>4); tgt[toff+i+1]=(b0<<4)|(b2>>>4); tgt[toff+i+2]=(b2<<4)|(b1>>>4); }
return;
}
var pix = new Uint16Array(16);
var row, col, val, max, min, imax, imin, sh, bit, i, dp;
var data = new Uint8Array(raw_width+1);
for (row=0; row < height; row++) {
//fread (data, 1, raw_width, ifp);
for(var j=0; j<raw_width; j++) data[j]=inp[off++];
for (dp=0, col=0; col < raw_width-30; dp+=16) {
max = 0x7ff & (val = bin.readUint(data,dp));
min = 0x7ff & (val >>> 11);
imax = 0x0f & (val >>> 22);
imin = 0x0f & (val >>> 26);
for (sh=0; sh < 4 && 0x80 << sh <= max-min; sh++);
for (bit=30, i=0; i < 16; i++)
if (i == imax) pix[i] = max;
else if (i == imin) pix[i] = min;
else {
pix[i] = ((bin.readUshort(data, dp+(bit >> 3)) >>> (bit & 7) & 0x7f) << sh) + min;
if (pix[i] > 0x7ff) pix[i] = 0x7ff;
bit += 7;
}
for (i=0; i < 16; i++, col+=2) {
//RAW(row,col) = curve[pix[i] << 1] >> 2;
var clr = pix[i]<<1; //clr = 0xffff;
UTIF.decode._putsF(tgt, (row*raw_width+col)*tiff_bps, clr<<(16-tiff_bps));
}
col -= col & 1 ? 1:31;
}
}
}
UTIF.decode._decodeNikon = function(img,imgs, data, off, src_length, tgt, toff)
{
var nikon_tree = [
[ 0, 0,1,5,1,1,1,1,1,1,2,0,0,0,0,0,0, /* 12-bit lossy */
5,4,3,6,2,7,1,0,8,9,11,10,12 ],
[ 0, 0,1,5,1,1,1,1,1,1,2,0,0,0,0,0,0, /* 12-bit lossy after split */
0x39,0x5a,0x38,0x27,0x16,5,4,3,2,1,0,11,12,12 ],
[ 0, 0,1,4,2,3,1,2,0,0,0,0,0,0,0,0,0, /* 12-bit lossless */
5,4,6,3,7,2,8,1,9,0,10,11,12 ],
[ 0, 0,1,4,3,1,1,1,1,1,2,0,0,0,0,0,0, /* 14-bit lossy */
5,6,4,7,8,3,9,2,1,0,10,11,12,13,14 ],
[ 0, 0,1,5,1,1,1,1,1,1,1,2,0,0,0,0,0, /* 14-bit lossy after split */
8,0x5c,0x4b,0x3a,0x29,7,6,5,4,3,2,1,0,13,14 ],
[ 0, 0,1,4,2,2,3,1,2,0,0,0,0,0,0,0,0, /* 14-bit lossless */
7,6,8,5,9,4,10,3,11,12,2,0,1,13,14 ] ];
var raw_width = img["t256"][0], height=img["t257"][0], tiff_bps=img["t258"][0];
var tree = 0, split = 0;
var make_decoder = UTIF.decode._make_decoder;
var getbithuff = UTIF.decode._getbithuff;
var mn = imgs[0].exifIFD.makerNote, md = mn["t150"]?mn["t150"]:mn["t140"], mdo=0; //console.log(mn,md);
//console.log(md[0].toString(16), md[1].toString(16), tiff_bps);
var ver0 = md[mdo++], ver1 = md[mdo++];
if (ver0 == 0x49 || ver1 == 0x58) mdo+=2110;
if (ver0 == 0x46) tree = 2;
if (tiff_bps == 14) tree += 3;
var vpred = [[0,0],[0,0]], bin=(img.isLE ? UTIF._binLE : UTIF._binBE);
for(var i=0; i<2; i++) for(var j=0; j<2; j++) { vpred[i][j] = bin.readShort(md,mdo); mdo+=2; } // not sure here ... [i][j] or [j][i]
//console.log(vpred);
var max = 1 << tiff_bps & 0x7fff, step=0;
var csize = bin.readShort(md,mdo); mdo+=2;
if (csize > 1) step = Math.floor(max / (csize-1));
if (ver0 == 0x44 && ver1 == 0x20 && step > 0) split = bin.readShort(md,562);
var i;
var row, col;
var len, shl, diff;
var min_v = 0;
var hpred = [0,0];
var huff = make_decoder(nikon_tree[tree]);
//var g_input_offset=0, bitbuf=0, vbits=0, reset=0;
var prm = [off,0,0,0];
//console.log(split); split = 170;
for (min_v=row=0; row < height; row++) {
if (split && row == split) {
//free (huff);
huff = make_decoder (nikon_tree[tree+1]);
//max_v += (min_v = 16) << 1;
}
for (col=0; col < raw_width; col++) {
i = getbithuff(data,prm,huff[0],huff);
len = i & 15;
shl = i >>> 4;
diff = (((getbithuff(data,prm,len-shl,0) << 1) + 1) << shl) >>> 1;
if ((diff & (1 << (len-1))) == 0)
diff -= (1 << len) - (shl==0?1:0);
if (col < 2) hpred[col] = vpred[row & 1][col] += diff;
else hpred[col & 1] += diff;
var clr = Math.min(Math.max(hpred[col & 1],0),(1<<tiff_bps)-1);
var bti = (row*raw_width+col)*tiff_bps;
UTIF.decode._putsF(tgt, bti, clr<<(16-tiff_bps));
}
}
}
// put 16 bits
UTIF.decode._putsF= function(dt, pos, val) { val = val<<(8-(pos&7)); var o=(pos>>>3); dt[o]|=val>>>16; dt[o+1]|=val>>>8; dt[o+2]|=val; }
UTIF.decode._getbithuff = function(data,prm,nbits, huff) {
var zero_after_ff = 0;
var get_byte = UTIF.decode._get_byte;
var c;
var off=prm[0], bitbuf=prm[1], vbits=prm[2], reset=prm[3];
//if (nbits > 25) return 0;
//if (nbits < 0) return bitbuf = vbits = reset = 0;
if (nbits == 0 || vbits < 0) return 0;
while (!reset && vbits < nbits && (c = data[off++]) != -1 &&
!(reset = zero_after_ff && c == 0xff && data[off++])) {
//console.log("byte read into c");
bitbuf = (bitbuf << 8) + c;
vbits += 8;
}
c = (bitbuf << (32-vbits)) >>> (32-nbits);
if (huff) {
vbits -= huff[c+1] >>> 8; //console.log(c, huff[c]>>8);
c = huff[c+1]&255;
} else
vbits -= nbits;
if (vbits < 0) throw "e";
prm[0]=off; prm[1]=bitbuf; prm[2]=vbits; prm[3]=reset;
return c;
}
UTIF.decode._make_decoder = function(source) {
var max, len, h, i, j;
var huff = [];
for (max=16; max!=0 && !source[max]; max--);
var si=17;
huff[0] = max;
for (h=len=1; len <= max; len++)
for (i=0; i < source[len]; i++, ++si)
for (j=0; j < 1 << (max-len); j++)
if (h <= 1 << max)
huff[h++] = (len << 8) | source[si];
return huff;
}
UTIF.decode._decodeNewJPEG = function(img, data, off, len, tgt, toff)
{
var tables = img["t347"], tlen = tables ? tables.length : 0, buff = new Uint8Array(tlen + len);
if (tables) {
var SOI = 216, EOI = 217, boff = 0;
for (var i=0; i<(tlen-1); i++)
{
// Skip EOI marker from JPEGTables
if (tables[i]==255 && tables[i+1]==EOI) break;
buff[boff++] = tables[i];
}
// Skip SOI marker from data
var byte1 = data[off], byte2 = data[off + 1];
if (byte1!=255 || byte2!=SOI)
{
buff[boff++] = byte1;
buff[boff++] = byte2;
}
for (var i=2; i<len; i++) buff[boff++] = data[off+i];
}
else for (var i=0; i<len; i++) buff[i] = data[off+i];
if(img["t262"][0]==32803 || img["t262"][0]==34892) // lossless JPEG and lossy JPEG (used in DNG files)
{
var bps = img["t258"][0];//, dcdr = new LosslessJpegDecoder();
var out = UTIF.LosslessJpegDecode(buff), olen=out.length; //console.log(olen);
if(false) {}
else if(bps==16) {
if(img.isLE) for(var i=0; i<olen; i++ ) { tgt[toff+(i<<1)] = (out[i]&255); tgt[toff+(i<<1)+1] = (out[i]>>>8); }
else for(var i=0; i<olen; i++ ) { tgt[toff+(i<<1)] = (out[i]>>>8); tgt[toff+(i<<1)+1] = (out[i]&255); }
}
else if(bps==14 || bps==12) { // 4 * 14 == 56 == 7 * 8
var rst = 16-bps;
for(var i=0; i<olen; i++) UTIF.decode._putsF(tgt, i*bps, out[i]<<rst);
}
else throw new Error("unsupported bit depth "+bps);
}
else
{
var parser = new UTIF.JpegDecoder(); parser.parse(buff);
var decoded = parser.getData(parser.width, parser.height);
for (var i=0; i<decoded.length; i++) tgt[toff + i] = decoded[i];
}
// PhotometricInterpretation is 6 (YCbCr) for JPEG, but after decoding we populate data in
// RGB format, so updating the tag value
if(img["t262"][0] == 6) img["t262"][0] = 2;
}
UTIF.decode._decodeOldJPEGInit = function(img, data, off, len)
{
var SOI = 216, EOI = 217, DQT = 219, DHT = 196, DRI = 221, SOF0 = 192, SOS = 218;
var joff = 0, soff = 0, tables, sosMarker, isTiled = false, i, j, k;
var jpgIchgFmt = img["t513"], jifoff = jpgIchgFmt ? jpgIchgFmt[0] : 0;
var jpgIchgFmtLen = img["t514"], jiflen = jpgIchgFmtLen ? jpgIchgFmtLen[0] : 0;
var soffTag = img["t324"] || img["t273"] || jpgIchgFmt;
var ycbcrss = img["t530"], ssx = 0, ssy = 0;
var spp = img["t277"]?img["t277"][0]:1;
var jpgresint = img["t515"];
if(soffTag)
{
soff = soffTag[0];
isTiled = (soffTag.length > 1);
}
if(!isTiled)
{
if(data[off]==255 && data[off+1]==SOI) return { jpegOffset: off };
if(jpgIchgFmt!=null)
{
if(data[off+jifoff]==255 && data[off+jifoff+1]==SOI) joff = off+jifoff;
else log("JPEGInterchangeFormat does not point to SOI");
if(jpgIchgFmtLen==null) log("JPEGInterchangeFormatLength field is missing");
else if(jifoff >= soff || (jifoff+jiflen) <= soff) log("JPEGInterchangeFormatLength field value is invalid");
if(joff != null) return { jpegOffset: joff };
}
}
if(ycbcrss!=null) { ssx = ycbcrss[0]; ssy = ycbcrss[1]; }
if(jpgIchgFmt!=null)
if(jpgIchgFmtLen!=null)
if(jiflen >= 2 && (jifoff+jiflen) <= soff)
{
if(data[off+jifoff+jiflen-2]==255 && data[off+jifoff+jiflen-1]==SOI) tables = new Uint8Array(jiflen-2);
else tables = new Uint8Array(jiflen);
for(i=0; i<tables.length; i++) tables[i] = data[off+jifoff+i];
log("Incorrect JPEG interchange format: using JPEGInterchangeFormat offset to derive tables");
}
else log("JPEGInterchangeFormat+JPEGInterchangeFormatLength > offset to first strip or tile");
if(tables == null)
{
var ooff = 0, out = [];
out[ooff++] = 255; out[ooff++] = SOI;
var qtables = img["t519"];
if(qtables==null) throw new Error("JPEGQTables tag is missing");
for(i=0; i<qtables.length; i++)
{
out[ooff++] = 255; out[ooff++] = DQT; out[ooff++] = 0; out[ooff++] = 67; out[ooff++] = i;
for(j=0; j<64; j++) out[ooff++] = data[off+qtables[i]+j];
}
for(k=0; k<2; k++)
{
var htables = img[(k == 0) ? "t520" : "t521"];
if(htables==null) throw new Error(((k == 0) ? "JPEGDCTables" : "JPEGACTables") + " tag is missing");
for(i=0; i<htables.length; i++)
{
out[ooff++] = 255; out[ooff++] = DHT;
//out[ooff++] = 0; out[ooff++] = 67; out[ooff++] = i;
var nc = 19;
for(j=0; j<16; j++) nc += data[off+htables[i]+j];
out[ooff++] = (nc >>> 8); out[ooff++] = nc & 255;
out[ooff++] = (i | (k << 4));
for(j=0; j<16; j++) out[ooff++] = data[off+htables[i]+j];
for(j=0; j<nc; j++) out[ooff++] = data[off+htables[i]+16+j];
}
}
out[ooff++] = 255; out[ooff++] = SOF0;
out[ooff++] = 0; out[ooff++] = 8 + 3*spp; out[ooff++] = 8;
out[ooff++] = (img.height >>> 8) & 255; out[ooff++] = img.height & 255;
out[ooff++] = (img.width >>> 8) & 255; out[ooff++] = img.width & 255;
out[ooff++] = spp;
if(spp==1) { out[ooff++] = 1; out[ooff++] = 17; out[ooff++] = 0; }
else for(i=0; i<3; i++)
{
out[ooff++] = i + 1;
out[ooff++] = (i != 0) ? 17 : (((ssx & 15) << 4) | (ssy & 15));
out[ooff++] = i;
}
if(jpgresint!=null && jpgresint[0]!=0)
{
out[ooff++] = 255; out[ooff++] = DRI; out[ooff++] = 0; out[ooff++] = 4;
out[ooff++] = (jpgresint[0] >>> 8) & 255;
out[ooff++] = jpgresint[0] & 255;
}
tables = new Uint8Array(out);
}
var sofpos = -1;
i = 0;
while(i < (tables.length - 1)) {
if(tables[i]==255 && tables[i+1]==SOF0) { sofpos = i; break; }
i++;
}
if(sofpos == -1)
{
var tmptab = new Uint8Array(tables.length + 10 + 3*spp);
tmptab.set(tables);
var tmpoff = tables.length;
sofpos = tables.length;
tables = tmptab;
tables[tmpoff++] = 255; tables[tmpoff++] = SOF0;
tables[tmpoff++] = 0; tables[tmpoff++] = 8 + 3*spp; tables[tmpoff++] = 8;
tables[tmpoff++] = (img.height >>> 8) & 255; tables[tmpoff++] = img.height & 255;
tables[tmpoff++] = (img.width >>> 8) & 255; tables[tmpoff++] = img.width & 255;
tables[tmpoff++] = spp;
if(spp==1) { tables[tmpoff++] = 1; tables[tmpoff++] = 17; tables[tmpoff++] = 0; }
else for(i=0; i<3; i++)
{
tables[tmpoff++] = i + 1;
tables[tmpoff++] = (i != 0) ? 17 : (((ssx & 15) << 4) | (ssy & 15));
tables[tmpoff++] = i;
}
}
if(data[soff]==255 && data[soff+1]==SOS)
{
var soslen = (data[soff+2]<<8) | data[soff+3];
sosMarker = new Uint8Array(soslen+2);
sosMarker[0] = data[soff]; sosMarker[1] = data[soff+1]; sosMarker[2] = data[soff+2]; sosMarker[3] = data[soff+3];
for(i=0; i<(soslen-2); i++) sosMarker[i+4] = data[soff+i+4];
}
else
{
sosMarker = new Uint8Array(2 + 6 + 2*spp);
var sosoff = 0;
sosMarker[sosoff++] = 255; sosMarker[sosoff++] = SOS;
sosMarker[sosoff++] = 0; sosMarker[sosoff++] = 6 + 2*spp; sosMarker[sosoff++] = spp;
if(spp==1) { sosMarker[sosoff++] = 1; sosMarker[sosoff++] = 0; }
else for(i=0; i<3; i++)
{
sosMarker[sosoff++] = i+1; sosMarker[sosoff++] = (i << 4) | i;
}
sosMarker[sosoff++] = 0; sosMarker[sosoff++] = 63; sosMarker[sosoff++] = 0;
}
return { jpegOffset: off, tables: tables, sosMarker: sosMarker, sofPosition: sofpos };
}
UTIF.decode._decodeOldJPEG = function(img, data, off, len, tgt, toff)
{
var i, dlen, tlen, buff, buffoff;
var jpegData = UTIF.decode._decodeOldJPEGInit(img, data, off, len);
if(jpegData.jpegOffset!=null)
{
dlen = off+len-jpegData.jpegOffset;
buff = new Uint8Array(dlen);
for(i=0; i<dlen; i++) buff[i] = data[jpegData.jpegOffset+i];
}
else
{
tlen = jpegData.tables.length;
buff = new Uint8Array(tlen + jpegData.sosMarker.length + len + 2);
buff.set(jpegData.tables);
buffoff = tlen;
buff[jpegData.sofPosition+5] = (img.height >>> 8) & 255; buff[jpegData.sofPosition+6] = img.height & 255;
buff[jpegData.sofPosition+7] = (img.width >>> 8) & 255; buff[jpegData.sofPosition+8] = img.width & 255;
if(data[off]!=255 || data[off+1]!=SOS)
{
buff.set(jpegData.sosMarker, buffoff);
buffoff += sosMarker.length;
}
for(i=0; i<len; i++) buff[buffoff++] = data[off+i];
buff[buffoff++] = 255; buff[buffoff++] = EOI;
}
var parser = new UTIF.JpegDecoder(); parser.parse(buff);
var decoded = parser.getData(parser.width, parser.height);
for (var i=0; i<decoded.length; i++) tgt[toff + i] = decoded[i];
// PhotometricInterpretation is 6 (YCbCr) for JPEG, but after decoding we populate data in
// RGB format, so updating the tag value
if(img["t262"] && img["t262"][0] == 6) img["t262"][0] = 2;
}
UTIF.decode._decodePackBits = function(data, off, len, tgt, toff)
{
var sa = new Int8Array(data.buffer), ta = new Int8Array(tgt.buffer), lim = off+len;
while(off<lim)
{
var n = sa[off]; off++;
if(n>=0 && n<128) for(var i=0; i< n+1; i++) { ta[toff]=sa[off]; toff++; off++; }
if(n>=-127 && n<0) { for(var i=0; i<-n+1; i++) { ta[toff]=sa[off]; toff++; } off++; }
}
}
UTIF.decode._decodeThunder = function(data, off, len, tgt, toff)
{
var d2 = [ 0, 1, 0, -1 ], d3 = [ 0, 1, 2, 3, 0, -3, -2, -1 ];
var lim = off+len, qoff = toff*2, px = 0;
while(off<lim)
{
var b = data[off], msk = (b>>>6), n = (b&63); off++;
if(msk==3) { px=(n&15); tgt[qoff>>>1] |= (px<<(4*(1-qoff&1))); qoff++; }
if(msk==0) for(var i=0; i<n; i++) { tgt[qoff>>>1] |= (px<<(4*(1-qoff&1))); qoff++; }
if(msk==2) for(var i=0; i<2; i++) { var d=(n>>>(3*(1-i)))&7; if(d!=4) { px+=d3[d]; tgt[qoff>>>1] |= (px<<(4*(1-qoff&1))); qoff++; } }
if(msk==1) for(var i=0; i<3; i++) { var d=(n>>>(2*(2-i)))&3; if(d!=2) { px+=d2[d]; tgt[qoff>>>1] |= (px<<(4*(1-qoff&1))); qoff++; } }
}
}
UTIF.decode._dmap = { "1":0,"011":1,"000011":2,"0000011":3, "010":-1,"000010":-2,"0000010":-3 };
UTIF.decode._lens = ( function()
{
var addKeys = function(lens, arr, i0, inc) { for(var i=0; i<arr.length; i++) lens[arr[i]] = i0 + i*inc; }
var termW = "00110101,000111,0111,1000,1011,1100,1110,1111,10011,10100,00111,01000,001000,000011,110100,110101," // 15
+ "101010,101011,0100111,0001100,0001000,0010111,0000011,0000100,0101000,0101011,0010011,0100100,0011000,00000010,00000011,00011010," // 31
+ "00011011,00010010,00010011,00010100,00010101,00010110,00010111,00101000,00101001,00101010,00101011,00101100,00101101,00000100,00000101,00001010," // 47
+ "00001011,01010010,01010011,01010100,01010101,00100100,00100101,01011000,01011001,01011010,01011011,01001010,01001011,00110010,00110011,00110100";
var termB = "0000110111,010,11,10,011,0011,0010,00011,000101,000100,0000100,0000101,0000111,00000100,00000111,000011000," // 15
+ "0000010111,0000011000,0000001000,00001100111,00001101000,00001101100,00000110111,00000101000,00000010111,00000011000,000011001010,000011001011,000011001100,000011001101,000001101000,000001101001," // 31
+ "000001101010,000001101011,000011010010,000011010011,000011010100,000011010101,000011010110,000011010111,000001101100,000001101101,000011011010,000011011011,000001010100,000001010101,000001010110,000001010111," // 47
+ "000001100100,000001100101,000001010010,000001010011,000000100100,000000110111,000000111000,000000100111,000000101000,000001011000,000001011001,000000101011,000000101100,000001011010,000001100110,000001100111";
var makeW = "11011,10010,010111,0110111,00110110,00110111,01100100,01100101,01101000,01100111,011001100,011001101,011010010,011010011,011010100,011010101,011010110,"
+ "011010111,011011000,011011001,011011010,011011011,010011000,010011001,010011010,011000,010011011";
var makeB = "0000001111,000011001000,000011001001,000001011011,000000110011,000000110100,000000110101,0000001101100,0000001101101,0000001001010,0000001001011,0000001001100,"
+ "0000001001101,0000001110010,0000001110011,0000001110100,0000001110101,0000001110110,0000001110111,0000001010010,0000001010011,0000001010100,0000001010101,0000001011010,"
+ "0000001011011,0000001100100,0000001100101";
var makeA = "00000001000,00000001100,00000001101,000000010010,000000010011,000000010100,000000010101,000000010110,000000010111,000000011100,000000011101,000000011110,000000011111";
termW = termW.split(","); termB = termB.split(","); makeW = makeW.split(","); makeB = makeB.split(","); makeA = makeA.split(",");
var lensW = {}, lensB = {};
addKeys(lensW, termW, 0, 1); addKeys(lensW, makeW, 64,64); addKeys(lensW, makeA, 1792,64);
addKeys(lensB, termB, 0, 1); addKeys(lensB, makeB, 64,64); addKeys(lensB, makeA, 1792,64);
return [lensW, lensB];
} )();
UTIF.decode._decodeG4 = function(data, off, slen, tgt, toff, w, fo)
{
var U = UTIF.decode, boff=off<<3, len=0, wrd=""; // previous starts with 1
var line=[], pline=[]; for(var i=0; i<w; i++) pline.push(0); pline=U._makeDiff(pline);
var a0=0, a1=0, a2=0, b1=0, b2=0, clr=0;
var y=0, mode="", toRead=0;
var bipl = Math.ceil(w/8)*8;
while((boff>>>3)<off+slen)
{
b1 = U._findDiff(pline, a0+(a0==0?0:1), 1-clr), b2 = U._findDiff(pline, b1, clr); // could be precomputed
var bit =0;
if(fo==1) bit = (data[boff>>>3]>>>(7-(boff&7)))&1;
if(fo==2) bit = (data[boff>>>3]>>>( (boff&7)))&1;
boff++; wrd+=bit;
if(mode=="H")
{
if(U._lens[clr][wrd]!=null)
{
var dl=U._lens[clr][wrd]; wrd=""; len+=dl;
if(dl<64) { U._addNtimes(line,len,clr); a0+=len; clr=1-clr; len=0; toRead--; if(toRead==0) mode=""; }
}
}
else
{
if(wrd=="0001") { wrd=""; U._addNtimes(line,b2-a0,clr); a0=b2; }
if(wrd=="001" ) { wrd=""; mode="H"; toRead=2; }
if(U._dmap[wrd]!=null) { a1 = b1+U._dmap[wrd]; U._addNtimes(line, a1-a0, clr); a0=a1; wrd=""; clr=1-clr; }
}
if(line.length==w && mode=="")
{
U._writeBits(line, tgt, toff*8+y*bipl);
clr=0; y++; a0=0;
pline=U._makeDiff(line); line=[];
}
//if(wrd.length>150) { log(wrd); break; throw "e"; }
}
}
UTIF.decode._findDiff = function(line, x, clr) { for(var i=0; i<line.length; i+=2) if(line[i]>=x && line[i+1]==clr) return line[i]; }
UTIF.decode._makeDiff = function(line)
{
var out = []; if(line[0]==1) out.push(0,1);
for(var i=1; i<line.length; i++) if(line[i-1]!=line[i]) out.push(i, line[i]);
out.push(line.length,0,line.length,1); return out;
}
UTIF.decode._decodeG3 = function(data, off, slen, tgt, toff, w, fo)
{
var U = UTIF.decode, boff=off<<3, len=0, wrd="";
var line=[], pline=[]; for(var i=0; i<w; i++) line.push(0);
var a0=0, a1=0, a2=0, b1=0, b2=0, clr=0;
var y=-1, mode="", toRead=0, is1D=false;
var bipl = Math.ceil(w/8)*8;
while((boff>>>3)<off+slen)
{
b1 = U._findDiff(pline, a0+(a0==0?0:1), 1-clr), b2 = U._findDiff(pline, b1, clr); // could be precomputed
var bit =0;
if(fo==1) bit = (data[boff>>>3]>>>(7-(boff&7)))&1;
if(fo==2) bit = (data[boff>>>3]>>>( (boff&7)))&1;
boff++; wrd+=bit;
if(is1D)
{
if(U._lens[clr][wrd]!=null)
{
var dl=U._lens[clr][wrd]; wrd=""; len+=dl;
if(dl<64) { U._addNtimes(line,len,clr); clr=1-clr; len=0; }
}
}
else
{
if(mode=="H")
{
if(U._lens[clr][wrd]!=null)
{
var dl=U._lens[clr][wrd]; wrd=""; len+=dl;
if(dl<64) { U._addNtimes(line,len,clr); a0+=len; clr=1-clr; len=0; toRead--; if(toRead==0) mode=""; }
}
}
else
{
if(wrd=="0001") { wrd=""; U._addNtimes(line,b2-a0,clr); a0=b2; }
if(wrd=="001" ) { wrd=""; mode="H"; toRead=2; }
if(U._dmap[wrd]!=null) { a1 = b1+U._dmap[wrd]; U._addNtimes(line, a1-a0, clr); a0=a1; wrd=""; clr=1-clr; }
}
}
if(wrd.endsWith("000000000001")) // needed for some files
{
if(y>=0) U._writeBits(line, tgt, toff*8+y*bipl);
if(fo==1) is1D = ((data[boff>>>3]>>>(7-(boff&7)))&1)==1;
if(fo==2) is1D = ((data[boff>>>3]>>>( (boff&7)))&1)==1;
boff++;
if(U._decodeG3.allow2D==null) U._decodeG3.allow2D=is1D;
if(!U._decodeG3.allow2D) { is1D = true; boff--; }
//log("EOL",y, "next 1D:", is1D);
wrd=""; clr=0; y++; a0=0;
pline=U._makeDiff(line); line=[];
}
}
if(line.length==w) U._writeBits(line, tgt, toff*8+y*bipl);
}
UTIF.decode._addNtimes = function(arr, n, val) { for(var i=0; i<n; i++) arr.push(val); }
UTIF.decode._writeBits = function(bits, tgt, boff)
{
for(var i=0; i<bits.length; i++) tgt[(boff+i)>>>3] |= (bits[i]<<(7-((boff+i)&7)));
}
UTIF.decode._decodeLZW = function(data, off, tgt, toff)
{
if(UTIF.decode._lzwTab==null)
{
var tb=new Uint32Array(0xffff), tn=new Uint16Array(0xffff), chr=new Uint8Array(2e6);
for(var i=0; i<256; i++) { chr[i<<2]=i; tb[i]=i<<2; tn[i]=1; }
UTIF.decode._lzwTab = [tb,tn,chr];
}
var copy = UTIF.decode._copyData;
var tab = UTIF.decode._lzwTab[0], tln=UTIF.decode._lzwTab[1], chr=UTIF.decode._lzwTab[2], totl = 258, chrl = 258<<2;
var bits = 9, boff = off<<3; // offset in bits
var ClearCode = 256, EoiCode = 257;
var v = 0, Code = 0, OldCode = 0;
while(true)
{
v = (data[boff>>>3]<<16) | (data[(boff+8)>>>3]<<8) | data[(boff+16)>>>3];
Code = ( v>>(24-(boff&7)-bits) ) & ((1<<bits)-1); boff+=bits;
if(Code==EoiCode) break;
if(Code==ClearCode)
{
bits=9; totl = 258; chrl = 258<<2;
v = (data[boff>>>3]<<16) | (data[(boff+8)>>>3]<<8) | data[(boff+16)>>>3];
Code = ( v>>(24-(boff&7)-bits) ) & ((1<<bits)-1); boff+=bits;
if(Code==EoiCode) break;
tgt[toff]=Code; toff++;
}
else if(Code<totl)
{
var cd = tab[Code], cl = tln[Code];
copy(chr,cd,tgt,toff,cl); toff += cl;
if(OldCode>=totl) { tab[totl] = chrl; chr[tab[totl]] = cd[0]; tln[totl]=1; chrl=(chrl+1+3)&~0x03; totl++; }
else
{
tab[totl] = chrl;
var nit = tab[OldCode], nil = tln[OldCode];
copy(chr,nit,chr,chrl,nil);
chr[chrl+nil]=chr[cd]; nil++;
tln[totl]=nil; totl++;
chrl=(chrl+nil+3)&~0x03;
}
if(totl+1==(1<<bits)) bits++;
}
else
{
if(OldCode>=totl) { tab[totl] = chrl; tln[totl]=0; totl++; }
else
{
tab[totl] = chrl;
var nit = tab[OldCode], nil = tln[OldCode];
copy(chr,nit,chr,chrl,nil);
chr[chrl+nil]=chr[chrl]; nil++;
tln[totl]=nil; totl++;
copy(chr,chrl,tgt,toff,nil); toff += nil;
chrl=(chrl+nil+3)&~0x03;
}
if(totl+1==(1<<bits)) bits++;
}
OldCode = Code;
}
}
UTIF.decode._copyData = function(s,so,t,to,l) { for(var i=0;i<l;i+=4) { t[to+i]=s[so+i]; t[to+i+1]=s[so+i+1]; t[to+i+2]=s[so+i+2]; t[to+i+3]=s[so+i+3]; } }
UTIF.tags = {};
UTIF.ttypes = { 256:3,257:3,258:3, 259:3, 262:3, 273:4, 274:3, 277:3,278:4,279:4, 282:5, 283:5, 284:3, 286:5,287:5, 296:3, 305:2, 306:2, 338:3, 513:4, 514:4, 34665:4 };
UTIF._readIFD = function(bin, data, offset, ifds, depth, debug)
{
var cnt = bin.readUshort(data, offset); offset+=2;
var ifd = {}; ifds.push(ifd);
if(debug) log(" ".repeat(depth),ifds.length-1,">>>----------------");
for(var i=0; i<cnt; i++)
{
var tag = bin.readUshort(data, offset); offset+=2;
var type = bin.readUshort(data, offset); offset+=2;
var num = bin.readUint (data, offset); offset+=4;
var voff = bin.readUint (data, offset); offset+=4;
//if(tag==33723) {type=1; num*=4;}//console.log(type,num,voff);//type = 1; // IPTC/NAA
var arr = [];
//ifd["t"+tag+"-"+UTIF.tags[tag]] = arr;
if(type== 1 || type==7) { arr = new Uint8Array(data.buffer, (num<5 ? offset-4 : voff), num); }
if(type== 2) { var o0 = (num<5 ? offset-4 : voff), c=data[o0];
if(c<128) arr.push( bin.readASCII(data, o0, num-1) );
else arr = new Uint8Array(data.buffer, o0, num-1); }
if(type== 3) { for(var j=0; j<num; j++) arr.push(bin.readUshort(data, (num<3 ? offset-4 : voff)+2*j)); }
if(type== 4) { for(var j=0; j<num; j++) arr.push(bin.readUint (data, (num<2 ? offset-4 : voff)+4*j)); }
if(type== 5) { for(var j=0; j<num; j++) arr.push(bin.readUint (data, voff+j*8) / bin.readUint(data,voff+j*8+4)); }
if(type== 8) { for(var j=0; j<num; j++) arr.push(bin.readShort (data, (num<3 ? offset-4 : voff)+2*j)); }
if(type== 9) { for(var j=0; j<num; j++) arr.push(bin.readInt (data, (num<2 ? offset-4 : voff)+4*j)); }
if(type==10) { for(var j=0; j<num; j++) arr.push(bin.readInt (data, voff+j*8) / bin.readInt (data,voff+j*8+4)); }
if(type==11) { for(var j=0; j<num; j++) arr.push(bin.readFloat (data, voff+j*4)); }
if(type==12) { for(var j=0; j<num; j++) arr.push(bin.readDouble(data, voff+j*8)); }
ifd["t"+tag] = arr;
if(num!=0 && arr.length==0) { log("unknown TIFF tag type: ", type, "num:",num); }
if(debug) log(" ".repeat(depth), tag, type, UTIF.tags[tag], arr);
if(tag==330 && ifd["t272"] && ifd["t272"][0]=="DSLR-A100") { }
// ifd["t258"]=[12]; ifd["t259"]=[32767]; ifd["t273"]=[offset+arr[0]]; ifd["t277"]=[1]; ifd["t279"]=[1]; ifd["t33421"]=[2,2]; ifd["t33422"]=[0,1,1,2];
else if(tag==330 || tag==34665 || (tag==50740 && bin.readUshort(data,bin.readUint(arr,0))<300 )) {
var oarr = tag==50740 ? [bin.readUint(arr,0)] : arr;
var subfd = [];
for(var j=0; j<oarr.length; j++) UTIF._readIFD(bin, data, oarr[j], subfd, depth+1, debug);
if(tag== 330) ifd.subIFD = subfd;
if(tag==34665) ifd.exifIFD = subfd[0];
if(tag==50740) ifd.dngPrvt = subfd[0];
}
if(tag==37500) {
var mn = arr;
//console.log(bin.readASCII(mn,0,mn.length), mn);
if(bin.readASCII(mn,0,5)=="Nikon") ifd.makerNote = UTIF["decode"](mn.slice(10).buffer)[0];
else if(bin.readUshort(data,voff)<300){
var subsub=[]; UTIF._readIFD(bin, data, voff, subsub, depth+1, debug);
ifd.makerNote = subsub[0];
}
}
}
if(debug) log(" ".repeat(depth),"<<<---------------");
return offset;
}
UTIF._writeIFD = function(bin, data, offset, ifd)
{
var keys = Object.keys(ifd);
bin.writeUshort(data, offset, keys.length); offset+=2;
var eoff = offset + keys.length*12 + 4;
for(var ki=0; ki<keys.length; ki++)