6 lines
36 KiB
JavaScript
6 lines
36 KiB
JavaScript
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/*!
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Custom build of Typr.ts (https://github.com/fredli74/Typr.ts) for use in Troika text rendering.
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Original MIT license applies: https://github.com/fredli74/Typr.ts/blob/master/LICENSE
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*/
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export default function(){return"undefined"==typeof window&&(self.window=self),function(r){"use strict";var e={parse:function(r){var t=e._bin,a=new Uint8Array(r);if("ttcf"==t.readASCII(a,0,4)){var n=4;t.readUshort(a,n),n+=2,t.readUshort(a,n),n+=2;var o=t.readUint(a,n);n+=4;for(var s=[],i=0;i<o;i++){var h=t.readUint(a,n);n+=4,s.push(e._readFont(a,h))}return s}return[e._readFont(a,0)]},_readFont:function(r,t){var a=e._bin,n=t;a.readFixed(r,t),t+=4;var o=a.readUshort(r,t);t+=2,a.readUshort(r,t),t+=2,a.readUshort(r,t),t+=2,a.readUshort(r,t),t+=2;for(var s=["cmap","head","hhea","maxp","hmtx","name","OS/2","post","loca","glyf","kern","CFF ","GDEF","GPOS","GSUB","SVG "],i={_data:r,_offset:n},h={},d=0;d<o;d++){var f=a.readASCII(r,t,4);t+=4,a.readUint(r,t),t+=4;var u=a.readUint(r,t);t+=4;var l=a.readUint(r,t);t+=4,h[f]={offset:u,length:l}}for(d=0;d<s.length;d++){var v=s[d];h[v]&&(i[v.trim()]=e[v.trim()].parse(r,h[v].offset,h[v].length,i))}return i},_tabOffset:function(r,t,a){for(var n=e._bin,o=n.readUshort(r,a+4),s=a+12,i=0;i<o;i++){var h=n.readASCII(r,s,4);s+=4,n.readUint(r,s),s+=4;var d=n.readUint(r,s);if(s+=4,n.readUint(r,s),s+=4,h==t)return d}return 0}};e._bin={readFixed:function(r,e){return(r[e]<<8|r[e+1])+(r[e+2]<<8|r[e+3])/65540},readF2dot14:function(r,t){return e._bin.readShort(r,t)/16384},readInt:function(r,t){return e._bin._view(r).getInt32(t)},readInt8:function(r,t){return e._bin._view(r).getInt8(t)},readShort:function(r,t){return e._bin._view(r).getInt16(t)},readUshort:function(r,t){return e._bin._view(r).getUint16(t)},readUshorts:function(r,t,a){for(var n=[],o=0;o<a;o++)n.push(e._bin.readUshort(r,t+2*o));return n},readUint:function(r,t){return e._bin._view(r).getUint32(t)},readUint64:function(r,t){return 4294967296*e._bin.readUint(r,t)+e._bin.readUint(r,t+4)},readASCII:function(r,e,t){for(var a="",n=0;n<t;n++)a+=String.fromCharCode(r[e+n]);return a},readUnicode:function(r,e,t){for(var a="",n=0;n<t;n++){var o=r[e++]<<8|r[e++];a+=String.fromCharCode(o)}return a},_tdec:"undefined"!=typeof window&&window.TextDecoder?new window.TextDecoder:null,readUTF8:function(r,t,a){var n=e._bin._tdec;return n&&0==t&&a==r.length?n.decode(r):e._bin.readASCII(r,t,a)},readBytes:function(r,e,t){for(var a=[],n=0;n<t;n++)a.push(r[e+n]);return a},readASCIIArray:function(r,e,t){for(var a=[],n=0;n<t;n++)a.push(String.fromCharCode(r[e+n]));return a},_view:function(r){return r._dataView||(r._dataView=r.buffer?new DataView(r.buffer,r.byteOffset,r.byteLength):new DataView(new Uint8Array(r).buffer))}},e._lctf={},e._lctf.parse=function(r,t,a,n,o){var s=e._bin,i={},h=t;s.readFixed(r,t),t+=4;var d=s.readUshort(r,t);t+=2;var f=s.readUshort(r,t);t+=2;var u=s.readUshort(r,t);return t+=2,i.scriptList=e._lctf.readScriptList(r,h+d),i.featureList=e._lctf.readFeatureList(r,h+f),i.lookupList=e._lctf.readLookupList(r,h+u,o),i},e._lctf.readLookupList=function(r,t,a){var n=e._bin,o=t,s=[],i=n.readUshort(r,t);t+=2;for(var h=0;h<i;h++){var d=n.readUshort(r,t);t+=2;var f=e._lctf.readLookupTable(r,o+d,a);s.push(f)}return s},e._lctf.readLookupTable=function(r,t,a){var n=e._bin,o=t,s={tabs:[]};s.ltype=n.readUshort(r,t),t+=2,s.flag=n.readUshort(r,t),t+=2;var i=n.readUshort(r,t);t+=2;for(var h=s.ltype,d=0;d<i;d++){var f=n.readUshort(r,t);t+=2;var u=a(r,h,o+f,s);s.tabs.push(u)}return s},e._lctf.numOfOnes=function(r){for(var e=0,t=0;t<32;t++)0!=(r>>>t&1)&&e++;return e},e._lctf.readClassDef=function(r,t){var a=e._bin,n=[],o=a.readUshort(r,t);if(t+=2,1==o){var s=a.readUshort(r,t);t+=2;var i=a.readUshort(r,t);t+=2;for(var h=0;h<i;h++)n.push(s+h),n.push(s+h),n.push(a.readUshort(r,t)),t+=2}if(2==o){var d=a.readUshort(r,t);t+=2;for(h=0;h<d;h++)n.push(a.readUshort(r,t)),t+=2,n.push(a.readUshort(r,t)),t+=2,n.push(a.readUshort(r,t)),t+=2}return n},e._lctf.getInterval=function(r,e){for(var t=0;t<r.length;t+=3){var a=r[t],n=r[t+1];if(r[t+2],a<=e&&e<=n)return t}return-1},e._lctf.readCoverage=function(r,t){var a=e._bin,n={};n.fmt=a.readUshort(r,t),t+=2;var o=a.readUshort(r,t);return t+=2,1==n.fmt&&(n.tab=a.readUshorts(r,t,o)),2==n.fmt&&(n.tab=a.readUshorts(r,t,3*o)),n},e._lctf.coverage
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