1.20.0

release/assets/image-processor-Dj3-kZwI.js

@@ -0,0 +1 @@
+!function(){"use strict";var t=["0","1","2","3","4","5","6","7","8","9","A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z","a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z","#","$","%","*","+",",","-",".",":",";","=","?","@","[","]","^","_","{","|","}","~"],e=(e,a)=>{var o="";for(let r=1;r<=a;r++){let h=Math.floor(e)/Math.pow(83,a-r)%83;o+=t[Math.floor(h)]}return o},a=t=>{let e=t/255;return e<=.04045?e/12.92:Math.pow((e+.055)/1.055,2.4)},o=t=>{let e=Math.max(0,Math.min(1,t));return e<=.0031308?Math.trunc(12.92*e*255+.5):Math.trunc(255*(1.055*Math.pow(e,.4166666666666667)-.055)+.5)},r=(t,e)=>(t=>t<0?-1:1)(t)*Math.pow(Math.abs(t),e),h=class extends Error{constructor(t){super(t),this.name="ValidationError",this.message=t}},i=(t,e,o,r)=>{let h=0,i=0,n=0,s=4*e;for(let g=0;g<e;g++){let e=4*g;for(let l=0;l<o;l++){let o=e+l*s,c=r(g,l);h+=c*a(t[o]),i+=c*a(t[o+1]),n+=c*a(t[o+2])}}let l=1/(e*o);return[h*l,i*l,n*l]};self.onmessage=async t=>{if("PROCESS_IMAGE"!==t.data?.type)return;const{id:a,file:n,targetWidth:s,targetHeight:l,quality:g,computeBlurhash:c}=t.data;try{let t,M;try{const e=await createImageBitmap(n,{resizeWidth:s,resizeHeight:l,resizeQuality:"high"});if(t=new OffscreenCanvas(s,l),M=t.getContext("2d"),!M)throw new Error("Failed to get 2d context from OffscreenCanvas");M.drawImage(e,0,0,s,l),e.close()}catch(f){console.warn("Hardware resize failed, falling back to stepped software scaling:",f);const e=await n.arrayBuffer(),a=new Blob([e],{type:n.type}),o=await createImageBitmap(a);let r=o.width,h=o.height,i=new OffscreenCanvas(r,h),g=i.getContext("2d");for(g.imageSmoothingEnabled=!0,g.imageSmoothingQuality="high",g.drawImage(o,0,0);.5*i.width>s&&.5*i.height>l;){const t=new OffscreenCanvas(Math.floor(.5*i.width),Math.floor(.5*i.height)),e=t.getContext("2d");e.imageSmoothingEnabled=!0,e.imageSmoothingQuality="high",e.drawImage(i,0,0,t.width,t.height),i=t}t=new OffscreenCanvas(s,l),M=t.getContext("2d"),M.imageSmoothingEnabled=!0,M.imageSmoothingQuality="high",M.drawImage(i,0,0,s,l),o.close()}let d=null;if(c)try{d=((t,a,n)=>{if(a*n*4!==t.length)throw new h("Width and height must match the pixels array");let s=[];for(let e=0;e<3;e++)for(let o=0;o<4;o++){let r=0==o&&0==e?1:2,h=i(t,a,n,(t,h)=>r*Math.cos(Math.PI*o*t/a)*Math.cos(Math.PI*e*h/n));s.push(h)}let l,g=s[0],c=s.slice(1),f="";if(f+=e(21,1),c.length>0){let t=Math.max(...c.map(t=>Math.max(...t))),a=Math.floor(Math.max(0,Math.min(82,Math.floor(166*t-.5))));l=(a+1)/166,f+=e(a,1)}else l=1,f+=e(0,1);return f+=e((t=>(o(t[0])<<16)+(o(t[1])<<8)+o(t[2]))(g),4),c.forEach(t=>{f+=e(((t,e)=>19*Math.floor(Math.max(0,Math.min(18,Math.floor(9*r(t[0]/e,.5)+9.5))))*19+19*Math.floor(Math.max(0,Math.min(18,Math.floor(9*r(t[1]/e,.5)+9.5))))+Math.floor(Math.max(0,Math.min(18,Math.floor(9*r(t[2]/e,.5)+9.5)))))(t,l),2)}),f})(M.getImageData(0,0,s,l).data,s,l)}catch(m){console.warn("Could not generate blurhash (possible canvas fingerprinting protection):",m)}const u=await t.convertToBlob({type:"image/jpeg",quality:g}),w=`${s}x${l}`;self.postMessage({id:a,success:!0,blob:u,dim:w,blurhash:d})}catch(M){self.postMessage({id:a,success:!1,error:M.message})}}}();