diff --git a/xraysim/UTIF.js b/xraysim/UTIF.js new file mode 100644 index 0000000..c04b5c5 --- /dev/null +++ b/xraysim/UTIF.js @@ -0,0 +1,1540 @@ + + + + +;(function(){ +var UTIF = {}; + +// Make available for import by `require()` +if (typeof module == "object") {module.exports = UTIF;} +else {self.UTIF = UTIF;} + +var pako = (typeof require === "function") ? require("./pako") : self.pako; + +function log() { if (typeof process=="undefined" || process.env.NODE_ENV=="development") console.log.apply(console, arguments); } + +(function(UTIF, pako){ + +// Following lines add a JPEG decoder to UTIF.JpegDecoder +(function(){"use strict";var W=function a1(){function W(p){this.message="JPEG error: "+p}W.prototype=new Error;W.prototype.name="JpegError";W.constructor=W;return W}(),ak=function ag(){var p=new Uint8Array([0,1,8,16,9,2,3,10,17,24,32,25,18,11,4,5,12,19,26,33,40,48,41,34,27,20,13,6,7,14,21,28,35,42,49,56,57,50,43,36,29,22,15,23,30,37,44,51,58,59,52,45,38,31,39,46,53,60,61,54,47,55,62,63]),t=4017,ac=799,ah=3406,ao=2276,ar=1567,ai=3784,s=5793,ad=2896;function ak(Q){if(Q==null)Q={};if(Q.w==null)Q.w=-1;this.V=Q.n;this.N=Q.w}function a5(Q,h){var f=0,G=[],n,E,a=16,F;while(a>0&&!Q[a-1]){a--}G.push({children:[],index:0});var C=G[0];for(n=0;n0){C=G.pop()}C.index++;G.push(C);while(G.length<=n){G.push(F={children:[],index:0});C.children[C.index]=F.children;C=F}f++}if(n+10){V--;return J>>V&1}J=Q[h++];if(J===255){var I=Q[h++];if(I){if(I===220&&d){h+=2;var l=Z(Q,h);h+=2;if(l>0&&l!==f.s){throw new DNLMarkerError("Found DNL marker (0xFFDC) while parsing scan data",l)}}else if(I===217){if(d){var M=q*8; +if(M>0&&M>>7}function u(I){var l=I;while(!0){l=l[Y()];switch(typeof l){case"number":return l;case"object":continue}throw new W("invalid huffman sequence")}}function m(I){var e=0;while(I>0){e=e<<1|Y();I--}return e}function j(I){if(I===1){return Y()===1?1:-1}var e=m(I);if(e>=1<>4;if(i===0){if(A<15){break}N+=16;continue}N+=A;var o=p[N];X.D[I+o]=j(i);N++}}function $(X,I){var l=u(X.J),M=l===0?0:j(l)<0){r--;return}var N=E,l=a;while(N<=l){var M=u(X.i),S=M&15,i=M>>4;if(S===0){if(i<15){r=m(i)+(1<>4;if(S===0){if(M<15){r=m(M)+(1<0){for(O=0;O0?"unexpected":"excessive";h=k.offset}if(k.M>=65488&&k.M<=65495){h+=2}else{break}}return h-z}function al(Q,h,f){var G=Q.$,n=Q.D,E,a,C,F,d,T,U,z,J,V,Y,u,m,j,v,$,b;if(!G){throw new W("missing required Quantization Table.")}for(var r=0;r<64;r+=8){J=n[h+r];V=n[h+r+1];Y=n[h+r+2];u=n[h+r+3];m=n[h+r+4];j=n[h+r+5];v=n[h+r+6];$=n[h+r+7];J*=G[r];if((V|Y|u|m|j|v|$)===0){b=s*J+512>>10;f[r]=b;f[r+1]=b;f[r+2]=b;f[r+3]=b;f[r+4]=b;f[r+5]=b;f[r+6]=b;f[r+7]=b;continue}V*=G[r+1];Y*=G[r+2];u*=G[r+3];m*=G[r+4];j*=G[r+5];v*=G[r+6];$*=G[r+7];E=s*J+128>>8;a=s*m+128>>8;C=Y;F=v;d=ad*(V-$)+128>>8;z=ad*(V+$)+128>>8; +T=u<<4;U=j<<4;E=E+a+1>>1;a=E-a;b=C*ai+F*ar+128>>8;C=C*ar-F*ai+128>>8;F=b;d=d+U+1>>1;U=d-U;z=z+T+1>>1;T=z-T;E=E+F+1>>1;F=E-F;a=a+C+1>>1;C=a-C;b=d*ao+z*ah+2048>>12;d=d*ah-z*ao+2048>>12;z=b;b=T*ac+U*t+2048>>12;T=T*t-U*ac+2048>>12;U=b;f[r]=E+z;f[r+7]=E-z;f[r+1]=a+U;f[r+6]=a-U;f[r+2]=C+T;f[r+5]=C-T;f[r+3]=F+d;f[r+4]=F-d}for(var P=0;P<8;++P){J=f[P];V=f[P+8];Y=f[P+16];u=f[P+24];m=f[P+32];j=f[P+40];v=f[P+48];$=f[P+56];if((V|Y|u|m|j|v|$)===0){b=s*J+8192>>14;if(b<-2040){b=0}else if(b>=2024){b=255}else{b=b+2056>>4}n[h+P]=b;n[h+P+8]=b;n[h+P+16]=b;n[h+P+24]=b;n[h+P+32]=b;n[h+P+40]=b;n[h+P+48]=b;n[h+P+56]=b;continue}E=s*J+2048>>12;a=s*m+2048>>12;C=Y;F=v;d=ad*(V-$)+2048>>12;z=ad*(V+$)+2048>>12;T=u;U=j;E=(E+a+1>>1)+4112;a=E-a;b=C*ai+F*ar+2048>>12;C=C*ar-F*ai+2048>>12;F=b;d=d+U+1>>1;U=d-U;z=z+T+1>>1;T=z-T;E=E+F+1>>1;F=E-F;a=a+C+1>>1;C=a-C;b=d*ao+z*ah+2048>>12;d=d*ah-z*ao+2048>>12;z=b; +b=T*ac+U*t+2048>>12;T=T*t-U*ac+2048>>12;U=b;J=E+z;$=E-z;V=a+U;v=a-U;Y=C+T;j=C-T;u=F+d;m=F-d;if(J<16){J=0}else if(J>=4080){J=255}else{J>>=4}if(V<16){V=0}else if(V>=4080){V=255}else{V>>=4}if(Y<16){Y=0}else if(Y>=4080){Y=255}else{Y>>=4}if(u<16){u=0}else if(u>=4080){u=255}else{u>>=4}if(m<16){m=0}else if(m>=4080){m=255}else{m>>=4}if(j<16){j=0}else if(j>=4080){j=255}else{j>>=4}if(v<16){v=0}else if(v>=4080){v=255}else{v>>=4}if($<16){$=0}else if($>=4080){$=255}else{$>>=4}n[h+P]=J; +n[h+P+8]=V;n[h+P+16]=Y;n[h+P+24]=u;n[h+P+32]=m;n[h+P+40]=j;n[h+P+48]=v;n[h+P+56]=$}}function a0(Q,h){var f=h.P,G=h.c,n=new Int16Array(64);for(var E=0;E=G){return null}var E=Z(Q,h);if(E>=65472&&E<=65534){return{u:null,M:E,offset:h}}var a=Z(Q,n);while(!(a>=65472&&a<=65534)){if(++n>=G){return null}a=Z(Q,n)}return{u:E.toString(16),M:a,offset:n}}ak.prototype={parse(Q,h){if(h==null)h={}; +var f=h.F,E=0,a=null,C=null,F,d,T=0;function G(){var o=Z(Q,E);E+=2;var B=E+o-2,V=an(Q,B,E);if(V&&V.u){B=V.offset}var ab=Q.subarray(E,B);E+=ab.length;return ab}function n(F){var o=Math.ceil(F.o/8/F.X),B=Math.ceil(F.s/8/F.B);for(var Y=0;Y>4===0){for(u=0;u<64;u++){b=p[u];P[b]=Q[E++]}}else if(r>>4===1){for(u=0;u<64;u++){b=p[u];P[b]=Z(Q,E);E+=2}}else{throw new W("DQT - invalid table spec")}U[r&15]=P}break;case 65472:case 65473:case 65474:if(F){throw new W("Only single frame JPEGs supported")}E+=2;F={};F.G=V===65473;F.Z=V===65474;F.precision=Q[E++];var D=Z(Q,E),a4,q=0,H=0;E+=2;F.s=f||D;F.o=Z(Q,E);E+=2;F.W=[];F._={};var a8=Q[E++];for(Y=0;Y>4,y=Q[E+1]&15;if(q>4===0?J:z)[_&15]=a5(N,K)}break;case 65501:E+=2;d=Z(Q,E);E+=2;break;case 65498:var x=++T===1&&!f,R;E+=2;var k=Q[E++],g=[];for(Y=0;Y>4];R.i=z[a6&15];g.push(R)}var I=Q[E++],l=Q[E++],M=Q[E++];try{var S=a7(Q,E,F,g,d,I,l,M>>4,M&15,x);E+=S}catch(ex){if(ex instanceof DNLMarkerError){return this.parse(Q,{F:ex.s})}else if(ex instanceof EOIMarkerError){break markerLoop}throw ex}break;case 65500:E+=4;break;case 65535:if(Q[E]!==255){E--}break;default:var i=an(Q,E-2,E-3);if(i&&i.u){E=i.offset;break}if(E>=Q.length-1){break markerLoop}throw new W("JpegImage.parse - unknown marker: "+V.toString(16))}V=Z(Q,E);E+=2}this.width=F.o;this.height=F.s;this.g=a;this.b=C;this.W=[];for(Y=0;Y>8)+P[J+1]}}}return v},get f(){if(this.b){return!!this.b.a}if(this.p===3){if(this.N===0){return!1}else if(this.W[0].index===82&&this.W[1].index===71&&this.W[2].index===66){return!1}return!0}if(this.N===1){return!0}return!1},z:function aj(Q){var h,f,G; +for(var n=0,E=Q.length;n4){throw new W("Unsupported color mode")}var E=this.Y(h,f,n);if(this.p===1&&G){var a=E.length,C=new Uint8ClampedArray(a*3),F=0;for(var d=0;d>24}function Z(p,t){return p[t]<<8|p[t+1]}function am(p,t){return(p[t]<<24|p[t+1]<<16|p[t+2]<<8|p[t+3])>>>0}UTIF.JpegDecoder=ak}()); + +//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":[[72,1]], "t283":[[72,1]], "t284":[1], "t286":[[0,1]], "t287":[[0,1]], "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 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"]; + //bcnt[0] = Math.min(bcnt[0], data.length); // Hasselblad, "RAW_HASSELBLAD_H3D39II.3FR" + 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>>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>>8)&255; + } + else if(noc==3) for(var j= 3; j>>3]>>>7-(P&7)&1;B[1]++;return D}function aj(B,P){if(x==null){x={}; +for(var D=0;D>>1}return B}function c(B,P){return B>>P}function N(B,P,D,U,X,y){P[D]=c(c(11*B[X]-4*B[X+y]+B[X+y+y]+4,3)+B[U],1); +P[D+y]=c(c(5*B[X]+4*B[X+y]-B[X+y+y]+4,3)-B[U],1)}function g(B,P,D,U,X,y){var n=B[X-y]-B[X+y],S=B[X],O=B[U]; +P[D]=c(c(n+4,3)+S+O,1);P[D+y]=c(c(-n+4,3)+S-O,1)}function L(B,P,D,U,X,y){P[D]=c(c(5*B[X]+4*B[X-y]-B[X-y-y]+4,3)+B[U],1); +P[D+y]=c(c(11*B[X]-4*B[X-y]+B[X-y-y]+4,3)-B[U],1)}function t(B){B=B<0?0:B>4095?4095:B;B=H[B]>>>2;return B}function ab(B,P,D,U,X){U=new Uint16Array(U.buffer); +var y=Date.now(),n=UTIF._binBE,S=P+D,O,q,i,M,m,aA,T,a8,a0,am,au,a3,aw,ao,v,ax,p,k;P+=4;while(P>>1)*(i>>>1));k=new Int16Array((q>>>1)*(i>>>1));u=new Int16Array(1024); +for(var f=0;f<1024;f++){var aF=f-512,j=Math.abs(aF),O=Math.floor(768*j*j*j/(255*255*255))+j;u[f]=Math.sign(aF)*O}H=new Uint16Array(4096); +var al=(1<<16)-1;for(var f=0;f<4096;f++){var ad=f,az=al*(Math.pow(113,ad/4095)-1)/112;H[f]=Math.min(az,al)}}var Z=p[T],V=Q(q,1+d[M]),z=Q(i,1+d[M]); +if(M==0){for(var b=0;b>>1)+G]=B[w]<<8|B[w+1]}}else{var aC=[B,P*8],aq=[],a5=0,ae=V*z,I=[0,0],s=0,E=0; +while(a50){aq[a5++]=E;s--}}var $=(M-1)%3,aE=$!=1?V:0,as=$!=0?z:0; +for(var b=0;b>>1)+aE,aa=b*V;for(var G=0;G>>1,an=V*2,at=z*2; +for(var b=0;b>14-r*2&3;var af=a6[aD];if(af!=0)for(var b=0;b>>1)*(q>>>1)+(G>>>1),R=a2[w],ak=ar[w]-2048,aB=ah[w]-2048,av=a1[w]-2048,a4=(ak<<1)+R,a9=(aB<<1)+R,ap=R+av,ag=R-av; +U[J]=t(a4);U[J+1]=t(ap);U[J+q]=t(ag);U[J+q+1]=t(a9)}}P+=o*4}else if(C==16388){P+=o*4}else if(F==8192||F==8448||F==9216){}else throw C.toString(16)}}console.log(Date.now()-y)}return ab}() + +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>>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>> 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<>>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) +{ + len = Math.min(len, data.length-off); + 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>>8); } + else for(var i=0; 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 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 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>> 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>> 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>> 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=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>>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>>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>>3)>>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=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>>3)>>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(twoDim) { + if(fo==1) is1D = ((data[boff>>>3]>>>(7-(boff&7)))&1)==1; + if(fo==2) is1D = ((data[boff>>>3]>>>( (boff&7)))&1)==1; + 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>>3] |= (bits[i]<<(7-((boff+i)&7))); +} + +UTIF.decode._decodeLZW=UTIF.decode._decodeLZW=function(){var e,U,Z,u,K=0,V=0,g=0,N=0,O=function(){var S=e>>>3,A=U[S]<<16|U[S+1]<<8|U[S+2],j=A>>>24-(e&7)-V&(1<>>----------------"); + for(var i=0; i4) { bin.writeUint(data, offset, eoff); toff=eoff; } + + if (type== 1 || type==7) { for(var i=0; i4) { dlen += (dlen&1); eoff += dlen; } + offset += 4; + } + return [offset, eoff]; +} + +UTIF.toRGBA8 = function(out, scl) +{ + var w = out.width, h = out.height, area = w*h, qarea = area*4, data = out.data; + var img = new Uint8Array(area*4); + //console.log(out); + // 0: WhiteIsZero, 1: BlackIsZero, 2: RGB, 3: Palette color, 4: Transparency mask, 5: CMYK + var intp = (out["t262"] ? out["t262"][0]: 2), bps = (out["t258"]?Math.min(32,out["t258"][0]):1); + if(out["t262"]==null && bps==1) intp=0; + //log("interpretation: ", intp, "bps", bps, out); + if(false) {} + else if(intp==0) + { + var bpl = Math.ceil(bps*w/8); + for(var y=0; y>3)])>>(7- (i&7)))& 1; img[qi]=img[qi+1]=img[qi+2]=( 1-px)*255; img[qi+3]=255; } + if(bps== 4) for(var i=0; i>1)])>>(4-4*(i&1)))&15; img[qi]=img[qi+1]=img[qi+2]=(15-px)* 17; img[qi+3]=255; } + if(bps== 8) for(var i=0; i>3)])>>(7- (i&7)))&1; img[qi]=img[qi+1]=img[qi+2]=(px)*255; img[qi+3]=255; } + if(bps== 2) for(var i=0; i>2)])>>(6-2*(i&3)))&3; img[qi]=img[qi+1]=img[qi+2]=(px)* 85; img[qi+3]=255; } + if(bps== 8) for(var i=0; i>>3)]>>>(7-(x&7)))&1; + else if(bps==4) mi=(data[dof+(x>>>1)]>>>(4-4*(x&1)))&15; + else if(bps==8) mi= data[dof+x*smpls]; + else throw bps; + img[qi]=(map[mi]>>8); img[qi+1]=(map[cn+mi]>>8); img[qi+2]=(map[cn+cn+mi]>>8); img[qi+3]=255; + } + } + else if(intp==5) + { + var smpls = out["t258"]?out["t258"].length : 4; + var gotAlpha = smpls>4 ? 1 : 0; + for(var i=0; i>>1); + var Y = data[si+(j&1)], Cb=data[si+2]-128, Cr=data[si+3]-128; + + var r = Y + ( (Cr >> 2) + (Cr >> 3) + (Cr >> 5) ) ; + var g = Y - ( (Cb >> 2) + (Cb >> 4) + (Cb >> 5)) - ( (Cr >> 1) + (Cr >> 3) + (Cr >> 4) + (Cr >> 5)) ; + var b = Y + ( Cb + (Cb >> 1) + (Cb >> 2) + (Cb >> 6)) ; + + img[qi ]=Math.max(0,Math.min(255,r)); + img[qi+1]=Math.max(0,Math.min(255,g)); + img[qi+2]=Math.max(0,Math.min(255,b)); + img[qi+3]=255; + } + } + } + else log("Unknown Photometric interpretation: "+intp); + return img; +} + +function RGBAtoRGB(r, g, b, a, r2,g2,b2){ + a=a/255; + var r3 = Math.round(((1 - a) * r2) + (a * r)) + var g3 = Math.round(((1 - a) * g2) + (a * g)) + var b3 = Math.round(((1 - a) * b2) + (a * b)) + return {r:r3,g:g3,b:b3} +} +function RGB2GRAY(rgb){ + return Math.round((rgb.r+rgb.g+rgb.b)/3); +} + +// w/o alpha channel +UTIF.toRGB8 = function(out, scl) +{ + //////////////////// + // Requires RGBAtoRGB! + //////////////////// + var w = out.width, h = out.height, area = w*h, qarea = area*4, data = out.data; + var img = new Uint8Array(area*3); + //console.log(out); + // 0: WhiteIsZero, 1: BlackIsZero, 2: RGB, 3: Palette color, 4: Transparency mask, 5: CMYK + var intp = (out["t262"] ? out["t262"][0]: 2), bps = (out["t258"]?Math.min(32,out["t258"][0]):1); + if(out["t262"]==null && bps==1) intp=0; + //log("interpretation: ", intp, "bps", bps, out); + if(false) {} + else if(intp==0) + { + var bpl = Math.ceil(bps*w/8); + for(var y=0; y>3)])>>(7- (i&7)))& 1; + img[qi]=img[qi+1]=img[qi+2]=( 1-px)*255; + // img[qi+3]=255; + } + if(bps== 4) for(var i=0; i>1)])>>(4-4*(i&1)))&15; + img[qi]=img[qi+1]=img[qi+2]=(15-px)* 17; + // img[qi+3]=255; + } + if(bps== 8) for(var i=0; i>3)])>>(7- (i&7)))&1; + img[qi]=img[qi+1]=img[qi+2]=(px)*255; + // img[qi+3]=255; + } + if(bps== 2) for(var i=0; i>2)])>>(6-2*(i&3)))&3; + img[qi]=img[qi+1]=img[qi+2]=(px)* 85; + // img[qi+3]=255; + } + if(bps== 8) for(var i=0; i>>3)]>>>(7-(x&7)))&1; + else if(bps==4) mi=(data[dof+(x>>>1)]>>>(4-4*(x&1)))&15; + else if(bps==8) mi= data[dof+x*smpls]; + else throw bps; + img[qi]=(map[mi]>>8); img[qi+1]=(map[cn+mi]>>8); img[qi+2]=(map[cn+cn+mi]>>8); + // img[qi+3]=255; + } + } + else if(intp==5) + { + var smpls = out["t258"]?out["t258"].length : 4; + var gotAlpha = smpls>4 ? 1 : 0; + for(var i=0; i>>1); + var Y = data[si+(j&1)], Cb=data[si+2]-128, Cr=data[si+3]-128; + + var r = Y + ( (Cr >> 2) + (Cr >> 3) + (Cr >> 5) ) ; + var g = Y - ( (Cb >> 2) + (Cb >> 4) + (Cb >> 5)) - ( (Cr >> 1) + (Cr >> 3) + (Cr >> 4) + (Cr >> 5)) ; + var b = Y + ( Cb + (Cb >> 1) + (Cb >> 2) + (Cb >> 6)) ; + + img[qi ]=Math.max(0,Math.min(255,r)); + img[qi+1]=Math.max(0,Math.min(255,g)); + img[qi+2]=Math.max(0,Math.min(255,b)); + // img[qi+3]=255; + } + } + } + else log("Unknown Photometric interpretation: "+intp); + return img; +} + +// Returns gray-level transformed image +UTIF.toGRAY8 = function(out, scl) +{ + //////////////////// + // Requires RGBAtoRGB! + //////////////////// + var w = out.width, h = out.height, area = w*h, qarea = area*4, data = out.data; + var img = new Uint8Array(area); + //console.log(out); + // 0: WhiteIsZero, 1: BlackIsZero, 2: RGB, 3: Palette color, 4: Transparency mask, 5: CMYK + var intp = (out["t262"] ? out["t262"][0]: 2), bps = (out["t258"]?Math.min(32,out["t258"][0]):1); + if(out["t262"]==null && bps==1) intp=0; + //log("interpretation: ", intp, "bps", bps, out); + if(false) {} + else if(intp==0) + { + var bpl = Math.ceil(bps*w/8); + for(var y=0; y>3)])>>(7- (i&7)))& 1; + img[qi]=( 1-px)*255; + } + if(bps== 4) for(var i=0; i>1)])>>(4-4*(i&1)))&15; + img[qi]=(15-px)* 17; + } + if(bps== 8) for(var i=0; i>3)])>>(7- (i&7)))&1; + img[qi]=(px)*255; + } + if(bps== 2) for(var i=0; i>2)])>>(6-2*(i&3)))&3; + img[qi]=(px)* 85; + } + if(bps== 8) for(var i=0; i>>3)]>>>(7-(x&7)))&1; + else if(bps==4) mi=(data[dof+(x>>>1)]>>>(4-4*(x&1)))&15; + else if(bps==8) mi= data[dof+x*smpls]; + else throw bps; + img[qi]=RGB2GRAY({r:(map[mi]>>8),g:(map[cn+mi]>>8),b:(map[cn+cn+mi]>>8)}); + } + } + else if(intp==5) + { + var smpls = out["t258"]?out["t258"].length : 4; + var gotAlpha = smpls>4 ? 1 : 0; + for(var i=0; i>>1); + var Y = data[si+(j&1)], Cb=data[si+2]-128, Cr=data[si+3]-128; + + var r = Y + ( (Cr >> 2) + (Cr >> 3) + (Cr >> 5) ) ; + var g = Y - ( (Cb >> 2) + (Cb >> 4) + (Cb >> 5)) - ( (Cr >> 1) + (Cr >> 3) + (Cr >> 4) + (Cr >> 5)) ; + var b = Y + ( Cb + (Cb >> 1) + (Cb >> 2) + (Cb >> 6)) ; + + img[qi ]=RGB2GRAY({ + r:Math.max(0,Math.min(255,r)), + g:Math.max(0,Math.min(255,g)), + b:Math.max(0,Math.min(255,b)) + }); + // img[qi+3]=255; + } + } + } + else log("Unknown Photometric interpretation: "+intp); + return img; +} + +UTIF.replaceIMG = function(imgs) +{ + if(imgs==null) imgs = document.getElementsByTagName("img"); + var sufs = ["tif","tiff","dng","cr2","nef"] + for (var i=0; ima) { ma=ar; page=img; } + } + UTIF.decodeImage(buff, page, ifds); + var rgba = UTIF.toRGBA8(page), w=page.width, h=page.height; + var ind = UTIF._xhrs.indexOf(e.target), img = UTIF._imgs[ind]; + UTIF._xhrs.splice(ind,1); UTIF._imgs.splice(ind,1); + var cnv = document.createElement("canvas"); cnv.width=w; cnv.height=h; + var ctx = cnv.getContext("2d"); + var imgd = new ImageData(new Uint8ClampedArray(rgba.buffer),w,h); + /*imgd = ctx.createImageData(w,h); + for(var i=0; i> 8)&255; buff[p+1] = n&255; }, + writeInt : function(buff, p, n) { var a=UTIF._binBE.ui8; UTIF._binBE.i32[0]=n; buff[p+3]=a[0]; buff[p+2]=a[1]; buff[p+1]=a[2]; buff[p+0]=a[3]; }, + writeUint : function(buff, p, n) { buff[p] = (n>>24)&255; buff[p+1] = (n>>16)&255; buff[p+2] = (n>>8)&255; buff[p+3] = (n>>0)&255; }, + writeASCII : function(buff, p, s) { for(var i = 0; i < s.length; i++) buff[p+i] = s.charCodeAt(i); }, + writeDouble: function(buff, p, n) + { + UTIF._binBE.fl64[0] = n; + for (var i = 0; i < 8; i++) buff[p + i] = UTIF._binBE.ui8[7 - i]; + } +} +UTIF._binBE.ui8 = new Uint8Array (8); +UTIF._binBE.i16 = new Int16Array (UTIF._binBE.ui8.buffer); +UTIF._binBE.i32 = new Int32Array (UTIF._binBE.ui8.buffer); +UTIF._binBE.ui32 = new Uint32Array (UTIF._binBE.ui8.buffer); +UTIF._binBE.fl32 = new Float32Array(UTIF._binBE.ui8.buffer); +UTIF._binBE.fl64 = new Float64Array(UTIF._binBE.ui8.buffer); + +UTIF._binLE = +{ + nextZero : UTIF._binBE.nextZero, + readUshort : function(buff, p) { return (buff[p+1]<< 8) | buff[p]; }, + readShort : function(buff, p) { var a=UTIF._binBE.ui8; a[0]=buff[p+0]; a[1]=buff[p+1]; return UTIF._binBE. i16[0]; }, + readInt : function(buff, p) { var a=UTIF._binBE.ui8; a[0]=buff[p+0]; a[1]=buff[p+1]; a[2]=buff[p+2]; a[3]=buff[p+3]; return UTIF._binBE. i32[0]; }, + readUint : function(buff, p) { var a=UTIF._binBE.ui8; a[0]=buff[p+0]; a[1]=buff[p+1]; a[2]=buff[p+2]; a[3]=buff[p+3]; return UTIF._binBE.ui32[0]; }, + readASCII : UTIF._binBE.readASCII, + readFloat : function(buff, p) { var a=UTIF._binBE.ui8; for(var i=0;i<4;i++) a[i]=buff[p+ i]; return UTIF._binBE.fl32[0]; }, + readDouble : function(buff, p) { var a=UTIF._binBE.ui8; for(var i=0;i<8;i++) a[i]=buff[p+ i]; return UTIF._binBE.fl64[0]; }, + + writeUshort: function(buff, p, n) { buff[p] = (n)&255; buff[p+1] = (n>>8)&255; }, + writeInt : function(buff, p, n) { var a=UTIF._binBE.ui8; UTIF._binBE.i32[0]=n; buff[p+0]=a[0]; buff[p+1]=a[1]; buff[p+2]=a[2]; buff[p+3]=a[3]; }, + writeUint : function(buff, p, n) { buff[p] = (n>>>0)&255; buff[p+1] = (n>>>8)&255; buff[p+2] = (n>>>16)&255; buff[p+3] = (n>>>24)&255; }, + writeASCII : UTIF._binBE.writeASCII +} +UTIF._copyTile = function(tb, tw, th, b, w, h, xoff, yoff) +{ + //log("copyTile", tw, th, w, h, xoff, yoff); + var xlim = Math.min(tw, w-xoff); + var ylim = Math.min(th, h-yoff); + for(var y=0; y>--g&1; +F=r[F+x]}j[k]=F}}function t(w,r,p,k){if(w[r+3]!=255)return 0;if(p==0)return r;for(var B=0;B<2;B++){if(w[r+B]==0){w[r+B]=w.length; +w.push(0,0,k,255)}var G=t(w,w[r+B],p-1,k+1);if(G!=0)return G}return 0}function H(w){var r=w.a,p=w.d; +while(r<25&&w.c>>8;p=p<<8|k;r+=8}w.a=r;w.d=p}function b(w,r){if(r.a>(r.a-=w)&65535>>16-w}function c(w,r){var p=w[0],k=0,B=255,G=0;if(r.a<16)H(r);var D=r.d>>r.a-8&255; +k=w[1][D];B=p[k+3];r.a-=p[k+2];while(B==255){G=r.d>>--r.a&1;k=p[k+G];B=p[k+3]}return B}function d(w,r){if(w<32768>>16-r)w+=-(1<>>1);else if(G==7)y=y+w[x-r]>>>1; +else throw G;w[x]=y+h(D[j],p)}}n+=r}}function J(w,r){var p=b(w,r);return w==16?-32768:d(p,w)}function e(w,r,p){var k=I.length-C; +for(var B=0;B>>4]}E=i();C+=2;break}else{C+=p-2}}var n=o>8?Uint16Array:Uint8Array,F=a*z,x=new n(m*F),y={a:0,d:0,b:E==8,c:C,data:I,e:I.length}; +if(y.b)e(x,F,y);else f(x,F,y);return x}return l}() + + + + +})(UTIF, pako); +})();