universalviewer/dist/uv-2.0.0/lib/pdf.min.js

The Universal Viewer is an open source project to enable cultural heritage institutions to present their digital artifacts in an IIIF-compliant and highly customisable user interface.

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a+'"');d[a]=[b,c]},send:function(a,b,c,d){a={action:a,data:b};c&&(b=this.callbackIndex++,this.callbacks[b]=c,a.callbackId=b);d&&this.postMessageTransfers?this.comObj.postMessage(a,d):this.comObj.postMessage(a)}};var s,E=function(){v("should not call ColorSpace constructor")};E.prototype={getRgb:function(a,b){var c=new Uint8Array(3);this.getRgbItem(a,b,c,0);return c},getRgbItem:function(){v("Should not call ColorSpace.getRgbItem")},getRgbBuffer:function(){v("Should not call ColorSpace.getRgbBuffer")},
getOutputLength:function(){v("Should not call ColorSpace.getOutputLength")},isPassthrough:function(){return!1},fillRgb:function(a,b,c,d,e,f,g,h,j){var k=b*c,l=null,p=1<<g,q=c!=e||b!=d,n;if(this.isPassthrough(g))l=h;else if(1===this.numComps&&k>p&&"DeviceGray"!==this.name&&"DeviceRGB"!==this.name){var m=8>=g?new Uint8Array(p):new Uint16Array(p),r;for(n=0;n<p;n++)m[n]=n;var x=new Uint8Array(3*p);this.getRgbBuffer(m,0,p,x,0,g,0);if(q){l=new Uint8Array(3*k);for(n=m=0;n<k;++n)r=3*h[n],l[m++]=x[r],l[m++]=
x[r+1],l[m++]=x[r+2]}else for(n=p=0;n<k;++n)r=3*h[n],a[p++]=x[r],a[p++]=x[r+1],a[p++]=x[r+2],p+=j}else q?(l=new Uint8Array(3*k),this.getRgbBuffer(h,0,k,l,0,g,0)):this.getRgbBuffer(h,0,d*f,a,0,g,j);if(l)if(q)PDFImage.resize(l,g,3,b,c,d,e,a,j);else{n=p=m=0;for(b=d*f;n<b;n++)a[p++]=l[m++],a[p++]=l[m++],a[p++]=l[m++],p+=j}},usesZeroToOneRange:!0};E.parse=function(a,b,c){a=E.parseToIR(a,b,c);return a instanceof ma?a:E.fromIR(a)};E.fromIR=function(a){var b=B(a)?a[0]:a,c;switch(b){case "DeviceGrayCS":return this.singletons.gray;
case "DeviceRgbCS":return this.singletons.rgb;case "DeviceCmykCS":return this.singletons.cmyk;case "CalGrayCS":return b=a[1].WhitePoint,c=a[1].BlackPoint,new Fa(b,c,a[1].Gamma);case "PatternCS":return(a=a[1])&&(a=E.fromIR(a)),new Ga(a);case "IndexedCS":return b=a[2],c=a[3],new Ha(E.fromIR(a[1]),b,c);case "AlternateCS":return b=a[3],new ma(a[1],E.fromIR(a[2]),X.fromIR(b));case "LabCS":return b=a[1].WhitePoint,c=a[1].BlackPoint,new Ia(b,c,a[1].Range);default:v("Unkown name "+b)}return null};E.parseToIR=
function(a,b,c){if(I(a)){var d=c.get("ColorSpace");U(d)&&(d=d.get(a.name))&&(a=d)}a=b.fetchIfRef(a);if(I(a))switch(this.mode=d=a.name,d){case "DeviceGray":case "G":return"DeviceGrayCS";case "DeviceRGB":case "RGB":return"DeviceRgbCS";case "DeviceCMYK":case "CMYK":return"DeviceCmykCS";case "Pattern":return["PatternCS",null];default:v("unrecognized colorspace "+d)}else if(B(a))switch(this.mode=d=a[0].name,d){case "DeviceGray":case "G":return"DeviceGrayCS";case "DeviceRGB":case "RGB":return"DeviceRgbCS";
case "DeviceCMYK":case "CMYK":return"DeviceCmykCS";case "CalGray":return b=a[1].getAll(),["CalGrayCS",b];case "CalRGB":return"DeviceRgbCS";case "ICCBased":d=b.fetchIfRef(a[1]).dict.get("N");if(1==d)return"DeviceGrayCS";if(3==d)return"DeviceRgbCS";if(4==d)return"DeviceCmykCS";break;case "Pattern":return(a=a[1])&&(a=E.parseToIR(a,b,c)),["PatternCS",a];case "Indexed":case "I":return c=E.parseToIR(a[1],b,c),d=a[2]+1,b=b.fetchIfRef(a[3]),xa(b)&&(b=b.getBytes()),["IndexedCS",c,d,b];case "Separation":case "DeviceN":var e=
a[1],d=1;I(e)?d=1:B(e)&&(d=e.length);c=E.parseToIR(a[2],b,c);b=X.getIR(b,b.fetchIfRef(a[3]));return["AlternateCS",d,c,b];case "Lab":return b=a[1].getAll(),["LabCS",b];default:v('unimplemented color space object "'+d+'"')}else v('unrecognized color space object: "'+a+'"');return null};E.isDefaultDecode=function(a,b){if(!a)return!0;if(2*b!==a.length)return z("The decode map is not the correct length"),!0;for(var c=0,d=a.length;c<d;c+=2)if(0!==a[c]||1!=a[c+1])return!1;return!0};E.singletons={get gray(){return K(this,
"gray",new Ja)},get rgb(){return K(this,"rgb",new Ka)},get cmyk(){return K(this,"cmyk",new La)}};s=E;var ma,Ma=function(a,b,c){this.name="Alternate";this.numComps=a;this.defaultColor=new Float32Array(a);for(var d=0;d<a;++d)this.defaultColor[d]=1;this.base=b;this.tintFn=c};Ma.prototype={getRgb:s.prototype.getRgb,getRgbItem:function(a,b,c,d){a="subarray"in a?a.subarray(b,b+this.numComps):Array.prototype.slice.call(a,b,b+this.numComps);a=this.tintFn(a);this.base.getRgbItem(a,0,c,d)},getRgbBuffer:function(a,
b,c,d,e,f,g){var h=this.tintFn,j=this.base;f=1/((1<<f)-1);var k=j.numComps,l=j.usesZeroToOneRange,p=(j.isPassthrough(8)||!l)&&0===g,q=p?e:0,n=p?d:new Uint8Array(k*c),m=this.numComps,r=new Float32Array(m),x,w;for(x=0;x<c;x++){for(w=0;w<m;w++)r[w]=a[b++]*f;var D=h(r);if(l)for(w=0;w<k;w++)n[q++]=255*D[w];else j.getRgbItem(D,0,n,q),q+=k}p||j.getRgbBuffer(n,0,c,d,e,8,g)},getOutputLength:function(a,b){return this.base.getOutputLength(a*this.base.numComps/this.numComps,b)},isPassthrough:s.prototype.isPassthrough,
fillRgb:s.prototype.fillRgb,isDefaultDecode:function(a){return s.isDefaultDecode(a,this.numComps)},usesZeroToOneRange:!0};ma=Ma;var Ga,Na=function(a){this.name="Pattern";this.base=a};Na.prototype={};Ga=Na;var Ha,Oa=function(a,b,c){this.name="Indexed";this.numComps=1;this.defaultColor=new Uint8Array([0]);this.base=a;this.highVal=b;a=a.numComps*b;var d;if(xa(c))d=new Uint8Array(a),c=c.getBytes(a),d.set(c);else if("string"==typeof c){d=new Uint8Array(a);for(b=0;b<a;++b)d[b]=c.charCodeAt(b)}else c instanceof
Uint8Array||c instanceof Array?d=c:v("Unrecognized lookup table: "+c);this.lookup=d};Oa.prototype={getRgb:s.prototype.getRgb,getRgbItem:function(a,b,c,d){this.base.getRgbItem(this.lookup,a[b]*this.base.numComps,c,d)},getRgbBuffer:function(a,b,c,d,e,f,g){f=this.base;for(var h=f.numComps,j=f.getOutputLength(h,g),k=this.lookup,l=0;l<c;++l){var p=a[b++]*h;f.getRgbBuffer(k,p,1,d,e,8,g);e+=j}},getOutputLength:function(a,b){return this.base.getOutputLength(a*this.base.numComps,b)},isPassthrough:s.prototype.isPassthrough,
fillRgb:s.prototype.fillRgb,isDefaultDecode:function(){return!0},usesZeroToOneRange:!0};Ha=Oa;var Ja,Pa=function(){this.name="DeviceGray";this.numComps=1;this.defaultColor=new Float32Array([0])};Pa.prototype={getRgb:s.prototype.getRgb,getRgbItem:function(a,b,c,d){a=255*a[b]|0;c[d]=c[d+1]=c[d+2]=0>a?0:255<a?255:a},getRgbBuffer:function(a,b,c,d,e,f,g){f=255/((1<<f)-1);for(var h=0;h<c;++h){var j=f*a[b++]|0;d[e++]=j;d[e++]=j;d[e++]=j;e+=g}},getOutputLength:function(a,b){return a*(3+b)},isPassthrough:s.prototype.isPassthrough,
fillRgb:s.prototype.fillRgb,isDefaultDecode:function(a){return s.isDefaultDecode(a,this.numComps)},usesZeroToOneRange:!0};Ja=Pa;var Ka,Qa=function(){this.name="DeviceRGB";this.numComps=3;this.defaultColor=new Float32Array([0,0,0])};Qa.prototype={getRgb:s.prototype.getRgb,getRgbItem:function(a,b,c,d){var e=255*a[b]|0,f=255*a[b+1]|0;a=255*a[b+2]|0;c[d]=0>e?0:255<e?255:e;c[d+1]=0>f?0:255<f?255:f;c[d+2]=0>a?0:255<a?255:a},getRgbBuffer:function(a,b,c,d,e,f,g){if(8===f&&0===g)d.set(a.subarray(b,b+3*c),
e);else{f=255/((1<<f)-1);for(var h=0;h<c;++h)d[e++]=f*a[b++]|0,d[e++]=f*a[b++]|0,d[e++]=f*a[b++]|0,e+=g}},getOutputLength:function(a,b){return a*(3+b)/3|0},isPassthrough:function(a){return 8==a},fillRgb:s.prototype.fillRgb,isDefaultDecode:function(a){return s.isDefaultDecode(a,this.numComps)},usesZeroToOneRange:!0};Ka=Qa;var La,Ra=function(a,b,c,d,e){var f=a[b+0]*c,g=a[b+1]*c,h=a[b+2]*c;c*=a[b+3];a=f*(-4.387332384609988*f+54.48615194189176*g+18.82290502165302*h+212.25662451639585*c+-285.2331026137004)+
g*(1.7149763477362134*g-5.6096736904047315*h+-17.873870861415444*c-5.497006427196366)+h*(-2.5217340131683033*h-21.248923337353073*c+17.5119270841813)+c*(-21.86122147463605*c-189.48180835922747)+255|0;b=f*(8.841041422036149*f+60.118027045597366*g+6.871425592049007*h+31.159100130055922*c+-79.2970844816548)+g*(-15.310361306967817*g+17.575251261109482*h+131.35250912493976*c-190.9453302588951)+h*(4.444339102852739*h+9.8632861493405*c-24.86741582555878)+c*(-20.737325471181034*c-187.80453709719578)+255|
0;f=f*(0.8842522430003296*f+8.078677503112928*g+30.89978309703729*h-0.23883238689178934*c+-14.183576799673286)+g*(10.49593273432072*g+63.02378494754052*h+50.606957656360734*c-112.23884253719248)+h*(0.03296041114873217*h+115.60384449646641*c+-193.58209356861505)+c*(-22.33816807309886*c-180.12613974708367)+255|0;d[e]=255<a?255:0>a?0:a;d[e+1]=255<b?255:0>b?0:b;d[e+2]=255<f?255:0>f?0:f},Sa=function(){this.name="DeviceCMYK";this.numComps=4;this.defaultColor=new Float32Array([0,0,0,1])};Sa.prototype={getRgb:s.prototype.getRgb,
getRgbItem:function(a,b,c,d){Ra(a,b,1,c,d)},getRgbBuffer:function(a,b,c,d,e,f,g){f=1/((1<<f)-1);for(var h=0;h<c;h++)Ra(a,b,f,d,e),b+=4,e+=3+g},getOutputLength:function(a,b){return a/4*(3+b)|0},isPassthrough:s.prototype.isPassthrough,fillRgb:s.prototype.fillRgb,isDefaultDecode:function(a){return s.isDefaultDecode(a,this.numComps)},usesZeroToOneRange:!0};La=Sa;var Fa,Ta=function(a,b,c){this.name="CalGray";this.numComps=1;this.defaultColor=new Float32Array([0]);a||v("WhitePoint missing - required for color space CalGray");
b=b||[0,0,0];this.XW=a[0];this.YW=a[1];this.ZW=a[2];this.XB=b[0];this.YB=b[1];this.ZB=b[2];this.G=c||1;(0>this.XW||0>this.ZW||1!==this.YW)&&v("Invalid WhitePoint components for "+this.name+", no fallback available");if(0>this.XB||0>this.YB||0>this.ZB)G("Invalid BlackPoint for "+this.name+", falling back to default"),this.XB=this.YB=this.ZB=0;(0!==this.XB||0!==this.YB||0!==this.ZB)&&z(this.name+", BlackPoint: XB: "+this.XB+", YB: "+this.YB+", ZB: "+this.ZB+", only default values are supported.");1>
this.G&&(G("Invalid Gamma: "+this.G+" for "+this.name+", falling back to default"),this.G=1)},Ua=function(a,b,c,d,e,f){b=Math.pow(b[c]*f,a.G);a=Math.max(116*Math.pow(a.YW*b,1/3)-16,0);d[e]=255*a/100;d[e+1]=255*a/100;d[e+2]=255*a/100};Ta.prototype={getRgb:s.prototype.getRgb,getRgbItem:function(a,b,c,d){Ua(this,a,b,c,d,1)},getRgbBuffer:function(a,b,c,d,e,f,g){f=1/((1<<f)-1);for(var h=0;h<c;++h)Ua(this,a,b,d,e,f),b+=1,e+=3+g},getOutputLength:function(a,b){return a*(3+b)},isPassthrough:s.prototype.isPassthrough,
fillRgb:s.prototype.fillRgb,isDefaultDecode:function(a){return s.isDefaultDecode(a,this.numComps)},usesZeroToOneRange:!0};Fa=Ta;var Ia,Va=function(a,b,c){this.name="Lab";this.numComps=3;this.defaultColor=new Float32Array([0,0,0]);a||v("WhitePoint missing - required for color space Lab");b=b||[0,0,0];c=c||[-100,100,-100,100];this.XW=a[0];this.YW=a[1];this.ZW=a[2];this.amin=c[0];this.amax=c[1];this.bmin=c[2];this.bmax=c[3];this.XB=b[0];this.YB=b[1];this.ZB=b[2];(0>this.XW||0>this.ZW||1!==this.YW)&&
v("Invalid WhitePoint components, no fallback available");if(0>this.XB||0>this.YB||0>this.ZB)G("Invalid BlackPoint, falling back to default"),this.XB=this.YB=this.ZB=0;if(this.amin>this.amax||this.bmin>this.bmax)G("Invalid Range, falling back to defaults"),this.amin=-100,this.amax=100,this.bmin=-100,this.bmax=100},na=function(a){return a>=6/29?a*a*a:108/841*(a-4/29)},Wa=function(a,b,c,d,e,f){var g=b[c],h=b[c+1];b=b[c+2];!1!==d&&(g=0+100*g/d,h=a.amin+h*(a.amax-a.amin)/d,b=a.bmin+b*(a.bmax-a.bmin)/
d);h=h>a.amax?a.amax:h<a.amin?a.amin:h;b=b>a.bmax?a.bmax:b<a.bmin?a.bmin:b;d=(g+16)/116;g=d-b/200;h=a.XW*na(d+h/500);d=a.YW*na(d);g=a.ZW*na(g);1>a.ZW?(a=3.1339*h+-1.617*d+-0.4906*g,b=-0.9785*h+1.916*d+0.0333*g,h=0.072*h+-0.229*d+1.4057*g):(a=3.2406*h+-1.5372*d+-0.4986*g,b=-0.9689*h+1.8758*d+0.0415*g,h=0.0557*h+-0.204*d+1.057*g);e[f]=0>=a?0:1<=a?255:255*Math.sqrt(a)|0;e[f+1]=0>=b?0:1<=b?255:255*Math.sqrt(b)|0;e[f+2]=0>=h?0:1<=h?255:255*Math.sqrt(h)|0};Va.prototype={getRgb:s.prototype.getRgb,getRgbItem:function(a,
b,c,d){Wa(this,a,b,!1,c,d)},getRgbBuffer:function(a,b,c,d,e,f,g){f=(1<<f)-1;for(var h=0;h<c;h++)Wa(this,a,b,f,d,e),b+=3,e+=3+g},getOutputLength:function(a,b){return a*(3+b)/3|0},isPassthrough:s.prototype.isPassthrough,isDefaultDecode:function(){return!0},usesZeroToOneRange:!1};Ia=Va;var X;X={getSampleArray:function(a,b,c,d){var e,f,g=1;e=0;for(f=a.length;e<f;e++)g*=a[e];g*=b;a=[];f=b=0;var h=1/(Math.pow(2,c)-1);d=d.getBytes((g*c+7)/8);var j=0;for(e=0;e<g;e++){for(;b<c;)f<<=8,f|=d[j++],b+=8;b-=c;a.push((f>>
b)*h);f&=(1<<b)-1}return a},getIR:function(a,b){var c=b.dict;c||(c=b);var d=[this.constructSampled,null,this.constructInterpolated,this.constructStiched,this.constructPostScript],e=c.get("FunctionType");(d=d[e])||v("Unknown type of function");return d.call(this,b,c,a)},fromIR:function(a){switch(a[0]){case 0:return this.constructSampledFromIR(a);case 2:return this.constructInterpolatedFromIR(a);case 3:return this.constructStichedFromIR(a);default:return this.constructPostScriptFromIR(a)}},parse:function(a,
b){var c=this.getIR(a,b);return this.fromIR(c)},constructSampled:function(a,b){function c(a){for(var b=a.length,c=[],d=0,e=0;e<b;e+=2)c[d]=[a[e],a[e+1]],++d;return c}var d=b.get("Domain"),e=b.get("Range");(!d||!e)&&v("No domain or range");var f=d.length/2,g=e.length/2,d=c(d),e=c(e),h=b.get("Size"),j=b.get("BitsPerSample"),k=b.get("Order")||1;1!==k&&G("No support for cubic spline interpolation: "+k);k=b.get("Encode");if(!k)for(var k=[],l=0;l<f;++l)k.push(0),k.push(h[l]-1);var k=c(k),l=(l=b.get("Decode"))?
c(l):e,p=this.getSampleArray(h,g,j,a);return[0,f,d,k,l,p,h,g,Math.pow(2,j)-1,e]},constructSampledFromIR:function(a){return function(b){var c=a[1],d=a[2],e=a[3],f=a[4],g=a[5],h=a[6],j=a[7],k=a[9];c!=b.length&&v("Incorrect number of arguments: "+c+" != "+b.length);var l=1<<c,p=new Float64Array(l),q=new Uint32Array(l),n,m;for(m=0;m<l;m++)p[m]=1;var r=j,x=1;for(n=0;n<c;++n){m=d[n][0];var w=d[n][1],D=Math.min(Math.max(b[n],m),w),t=e[n][0]+(D-m)*((e[n][1]-e[n][0])/(w-m)),w=h[n],t=Math.min(Math.max(t,0),
w-1);m=t<w-1?Math.floor(t):t-1;var D=m+1-t,t=t-m,s=m*r,P=s+r;for(m=0;m<l;m++)m&x?(p[m]*=t,q[m]+=P):(p[m]*=D,q[m]+=s);r*=w;x<<=1}b=new Float64Array(j);for(m=0;m<j;++m){for(n=c=0;n<l;n++)c+=g[q[n]+m]*p[n];c=f[m][0]+(c-0)*((f[m][1]-f[m][0])/1);b[m]=Math.min(Math.max(c,k[m][0]),k[m][1])}return b}},constructInterpolated:function(a,b){var c=b.get("C0")||[0],d=b.get("C1")||[1],e=b.get("N");(!B(c)||!B(d))&&v("Illegal dictionary for interpolated function");for(var f=c.length,g=[],h=0;h<f;++h)g.push(d[h]-c[h]);
return[2,c,g,e]},constructInterpolatedFromIR:function(a){var b=a[1],c=a[2],d=a[3],e=c.length;return function(a){a=1==d?a[0]:Math.pow(a[0],d);for(var g=[],h=0;h<e;++h)g.push(b[h]+a*c[h]);return g}},constructStiched:function(a,b,c){(a=b.get("Domain"))||v("No domain");1!=a.length/2&&v("Bad domain for stiched function");for(var d=b.get("Functions"),e=[],f=0,g=d.length;f<g;++f)e.push(X.getIR(c,c.fetchIfRef(d[f])));c=b.get("Bounds");b=b.get("Encode");return[3,a,c,b,e]},constructStichedFromIR:function(a){var b=
a[1],c=a[2],d=a[3];a=a[4];for(var e=[],f=0,g=a.length;f<g;f++)e.push(X.fromIR(a[f]));return function(a){a=a[0];var f=b[0],g=b[1];a>g?a=g:a<f&&(a=f);f=0;for(g=c.length;f<g&&!(a<c[f]);++f);g=b[0];0<f&&(g=c[f-1]);var l=b[1];f<c.length&&(l=c[f]);var p=d[2*f];return e[f]([p+(a-g)*(d[2*f+1]-p)/(l-g)])}},constructPostScript:function(a,b){var c=b.get("Domain"),d=b.get("Range");c||v("No domain.");d||v("No range.");var e=new PostScriptLexer(a),e=(new PostScriptParser(e)).parse();return[4,c,d,e]},constructPostScriptFromIR:function(a){var b=
a[1],c=a[2],d=c.length/2,e=new Xa(a[3]),f=new Ya;return function(a){for(var h=[],j=0,k=b.length/2;j<k;++j)h.push(a[j]);a=h.join("_");if(f.has(a))return f.get(a);h=e.execute(h);k=[];for(j=d-1;0<=j;--j){var l=h.pop(),p=2*j;l<c[p]?l=c[p]:l>c[p+1]&&(l=c[p+1]);k[j]=l}f.set(a,k);return k}}};var Ya,Za=function(){this.cache={};this.total=0};Za.prototype={has:function(a){return a in this.cache},get:function(a){return this.cache[a]},set:function(a,b){1024>this.total&&(this.cache[a]=b,this.total++)}};Ya=Za;
var $a=function(a){this.stack=a||[]};$a.prototype={push:function(a){100<=this.stack.length&&v("PostScript function stack overflow.");this.stack.push(a)},pop:function(){0>=this.stack.length&&v("PostScript function stack underflow.");return this.stack.pop()},copy:function(a){100<=this.stack.length+a&&v("PostScript function stack overflow.");var b=this.stack,c=b.length-a;for(a-=1;0<=a;a--,c++)b.push(b[c])},index:function(a){this.push(this.stack[this.stack.length-a-1])},roll:function(a,b){var c=this.stack,
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