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n=r(7),o=r(4).map,i=r(3).escape,a=r(0).isSafeMethod,s=r(0).getSafeProperty,u=r(6);e.name="OperatorNode",e.path="expression.node",e.factory=function(t,e,p,c){var f=p(r(1));function h(e,r,n,o){if(!(this instanceof h))throw new SyntaxError("Constructor must be called with the new operator");if("string"!=typeof e)throw new TypeError('string expected for parameter "op"');if("string"!=typeof r)throw new TypeError('string expected for parameter "fn"');if(!Array.isArray(n)||!n.every(t.isNode))throw new TypeError('Array containing Nodes expected for parameter "args"');this.implicit=!0===o,this.op=e,this.fn=r,this.args=n||[]}function l(t,e,r,n,o){var i,a=u.getPrecedence(t,e),s=u.getAssociativity(t,e);if("all"===e||n.length>2&&"OperatorNode:add"!==t.getIdentifier()&&"OperatorNode:multiply"!==t.getIdentifier())return n.map(function(t){switch(t.getContent().type){case"ArrayNode":case"ConstantNode":case"SymbolNode":case"ParenthesisNode":return!1;default:return!0}});switch(n.length){case 0:i=[];break;case 1:var p=u.getPrecedence(n[0],e);if(o&&null!==p){var c,f;if("keep"===e?(c=n[0].getIdentifier(),f=t.getIdentifier()):(c=n[0].getContent().getIdentifier(),f=t.getContent().getIdentifier()),!1===u.properties[a][f].latexLeftParens){i=[!1];break}if(!1===u.properties[p][c].latexParens){i=[!1];break}}if(null===p){i=[!1];break}if(p<=a){i=[!0];break}i=[!1];break;case 2:var h,l,m=u.getPrecedence(n[0],e),d=u.isAssociativeWith(t,n[0],e);h=null!==m&&(m===a&&"right"===s&&!d||m<a);var y,g,v,x=u.getPrecedence(n[1],e),w=u.isAssociativeWith(t,n[1],e);l=null!==x&&(x===a&&"left"===s&&!w||x<a),o&&("keep"===e?(y=t.getIdentifier(),g=t.args[0].getIdentifier(),v=t.args[1].getIdentifier()):(y=t.getContent().getIdentifier(),g=t.args[0].getContent().getIdentifier(),v=t.args[1].getContent().getIdentifier()),null!==m&&(!1===u.properties[a][y].latexLeftParens&&(h=!1),!1===u.properties[m][g].latexParens&&(h=!1)),null!==x&&(!1===u.properties[a][y].latexRightParens&&(l=!1),!1===u.properties[x][v].latexParens&&(l=!1))),i=[h,l];break;default:"OperatorNode:add"!==t.getIdentifier()&&"OperatorNode:multiply"!==t.getIdentifier()||(i=n.map(function(r){var n=u.getPrecedence(r,e),o=u.isAssociativeWith(t,r,e),i=u.getAssociativity(r,e);return null!==n&&(a===n&&s===i&&!o||n<a)}))}return n.length>=2&&"OperatorNode:multiply"===t.getIdentifier()&&t.implicit&&"auto"===e&&"hide"===r&&(i=n.map(function(t,e){var r="ParenthesisNode"===t.getIdentifier();return!(!i[e]&&!r)})),i}return h.prototype=new f,h.prototype.type="OperatorNode",h.prototype.isOperatorNode=!0,h.prototype._compile=function(t,e){if("string"!=typeof this.fn||!a(t,this.fn))throw t[this.fn]?new Error('No access to function "'+this.fn+'"'):new Error("Function "+this.fn+' missing in provided namespace "math"');var r=s(t,this.fn),n=o(this.args,function(r){return r._compile(t,e)});if(1===n.length){var i=n[0];return function(t,e,n){return r(i(t,e,n))}}if(2===n.length){var u=n[0],p=n[1];return function(t,e,n){return r(u(t,e,n),p(t,e,n))}}return function(t,e,i){return r.apply(null,o(n,function(r){return r(t,e,i)}))}},h.prototype.forEach=function(t){for(var e=0;e<this.args.length;e++)t(this.args[e],"args["+e+"]",this)},h.prototype.map=function(t){for(var e=[],r=0;r<this.args.length;r++)e[r]=this._ifNode(t(this.args[r],"args["+r+"]",this));return new h(this.op,this.fn,e,this.implicit)},h.prototype.clone=function(){return new h(this.op,this.fn,this.args.slice(0),this.implicit)},h.prototype.isUnary=function(){return 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g={float:"float",image:"sampler2D",bool:"bool",event:"bool",long:"int",color:"vec4",point2D:"vec2"},v=function(){};v.prototype.parse=function(t,e){try{this.valid=!0,this.rawFragmentShader=t,this.rawVertexShader=e||v.vertexShaderDefault,this.error=null;const r=y(this.rawFragmentShader),n=r.objectValue,o=r.stringValue;this.metadata=n,this.credit=n.CREDIT,this.categories=n.CATEGORIES,this.inputs=n.INPUTS,this.imports=n.IMPORTED||{},this.description=n.DESCRIPTION;const i=n.PASSES||[{}];this.passes=this.parsePasses(i);const a=this.rawFragmentShader.indexOf(o)+o.length+2;this.rawFragmentMain=this.rawFragmentShader.substring(a),this.generateShaders(),this.inferFilterType(),this.isfVersion=this.inferISFVersion()}catch(t){this.valid=!1,this.error=t,this.inputs=[],this.categories=[],this.credit="",this.errorLine=t.lineNumber}},v.prototype.parsePasses=function(t){const e=[];for(let r=0;r<t.length;++r){const n=t[r],o={};n.TARGET&&(o.target=n.TARGET),o.persistent=!!n.PERSISTENT,o.width=n.WIDTH||"$WIDTH",o.height=n.HEIGHT||"$HEIGHT",o.float=!!n.FLOAT,e.push(o)}return e},v.prototype.generateShaders=function(){this.uniformDefs="";for(let t=0;t<this.inputs.length;++t)this.addUniform(this.inputs[t]);for(let t=0;t<this.passes.length;++t)this.passes[t].target&&this.addUniform({NAME:this.passes[t].target,TYPE:"image"});for(const t in this.imports)({}).hasOwnProperty.call(this.imports,t)&&this.addUniform({NAME:t,TYPE:"image"});this.fragmentShader=this.buildFragmentShader(),this.vertexShader=this.buildVertexShader()},v.prototype.addUniform=function(t){const e=this.inputToType(t.TYPE);this.addUniformLine(`uniform ${e} ${t.NAME};`),"sampler2D"===e&&this.addUniformLine(this.samplerUniforms(t))},v.prototype.addUniformLine=function(t){this.uniformDefs+=`${t}\n`},v.prototype.samplerUniforms=function(t){const e=t.NAME;let r="";return r+=`uniform vec4 _${e}_imgRect;\n`,r+=`uniform vec2 _${e}_imgSize;\n`,r+=`uniform bool _${e}_flip;\n`,r+=`varying vec2 _${e}_normTexCoord;\n`,r+=`varying vec2 _${e}_texCoord;\n`,r+="\n"},v.prototype.buildFragmentShader=function(){const t=this.replaceSpecialFunctions(this.rawFragmentMain);return v.fragmentShaderSkeleton.replace("[[uniforms]]",this.uniformDefs).replace("[[main]]",t)},v.prototype.replaceSpecialFunctions=function(t){let e;return e=/IMG_THIS_PIXEL\((.+?)\)/g,t=t.replace(e,(t,e)=>`texture2D(${e}, isf_FragNormCoord)`),e=/IMG_THIS_NORM_PIXEL\((.+?)\)/g,t=t.replace(e,(t,e)=>`texture2D(${e}, isf_FragNormCoord)`),e=/IMG_PIXEL\((.+?)\)/g,t=t.replace(e,(t,e)=>{const r=e.split(",");return`texture2D(${r[0]}, (${r[1]}) / RENDERSIZE)`}),e=/IMG_NORM_PIXEL\((.+?)\)/g,t=t.replace(e,(t,e)=>{const r=e.split(","),n=r[0];return`VVSAMPLER_2DBYNORM(${n}, _${n}_imgRect, _${n}_imgSize, _${n}_flip, ${r[1]})`}),e=/IMG_SIZE\((.+?)\)/g,t=t.replace(e,(t,e)=>`_${e}_imgSize`)},v.prototype.buildVertexShader=function(){let t="\n";for(let e=0;e<this.inputs.length;++e){const r=this.inputs[e];"image"===r.TYPE&&(t+=`${this.texCoordFunctions(r)}\n`)}return v.vertexShaderSkeleton.replace("[[functions]]",t).replace("[[uniforms]]",this.uniformDefs).replace("[[main]]",this.rawVertexShader)},v.prototype.texCoordFunctions=function(t){const e=t.NAME;return["_[[name]]_texCoord =","    vec2(((isf_fragCoord.x / _[[name]]_imgSize.x * _[[name]]_imgRect.z) + _[[name]]_imgRect.x), ","          (isf_fragCoord.y / _[[name]]_imgSize.y * _[[name]]_imgRect.w) + _[[name]]_imgRect.y);","","_[[name]]_normTexCoord =","  vec2((((isf_FragNormCoord.x * _[[name]]_imgSize.x) / _[[name]]_imgSize.x * _[[name]]_imgRect.z) + _[[name]]_imgRect.x),","          ((isf_FragNormCoord.y * _[[name]]_imgSize.y) / _[[name]]_imgSize.y * _[[name]]_imgRect.w) + _[[name]]_imgRect.y);"].join("\n").replace(/\[\[name\]\]/g,e)},v.prototype.inferFilterType=function(){function t(t,e){return t.filter(e).length>0}const e=t(this.inputs,t=>"image"===t.TYPE&&"inputImage"===t.NAME),r=t(this.inputs,t=>"image"===t.TYPE&&"startImage"===t.NAME)&&t(this.inputs,t=>"image"===t.TYPE&&"endImage"===t.NAME)&&t(this.inputs,t=>"float"===t.TYPE&&"progress"===t.NAME);this.type=e?"filter":r?"transition":"generator"},v.prototype.inferISFVersion=function(){let t=2;return(this.metadata.PERSISTENT_BUFFERS||-1!==this.rawFragmentShader.indexOf("vv_FragNormCoord")||-1!==this.rawVertexShader.indexOf("vv_vertShaderInit")||-1!==this.rawVertexShader.indexOf("vv_FragNormCoord"))&&(t=1),t},v.prototype.inputToType=function(t){const e=g[t];if(!e)throw new Error(`Unknown input type [${t}]`);return e},v.fragmentShaderSkeleton="\nprecision highp float;\nprecision highp int;\n\nuniform int PASSINDEX;\nuniform vec2 RENDERSIZE;\nvarying vec2 isf_FragNormCoord;\nvarying vec2 isf_FragCoord;\nuniform float TIME;\nuniform float TIMEDELTA;\nuniform int FRAMEINDEX;\nuniform vec4 DATE;\n\n[[uniforms]]\n\n// We don't need 2DRect functions since we control all inputs.  Don't need flip either, but leaving\n// for consistency sake.\nvec4 VVSAMPLER_2DBYPIXEL(sampler2D sampler, vec4 samplerImgRect, vec2 samplerImgSize, bool samplerFlip, vec2 loc) {\n  return (samplerFlip)\n    ? texture2D   (sampler,vec2(((loc.x/samplerImgSize.x*samplerImgRect.z)+samplerImgRect.x), (samplerImgRect.w-(loc.y/samplerImgSize.y*samplerImgRect.w)+samplerImgRect.y)))\n    : texture2D   (sampler,vec2(((loc.x/samplerImgSize.x*samplerImgRect.z)+samplerImgRect.x), ((loc.y/samplerImgSize.y*samplerImgRect.w)+samplerImgRect.y)));\n}\nvec4 VVSAMPLER_2DBYNORM(sampler2D sampler, vec4 samplerImgRect, vec2 samplerImgSize, bool samplerFlip, vec2 normLoc)  {\n  vec4    returnMe = VVSAMPLER_2DBYPIXEL(   sampler,samplerImgRect,samplerImgSize,samplerFlip,vec2(normLoc.x*samplerImgSize.x, normLoc.y*samplerImgSize.y));\n  return returnMe;\n}\n\n[[main]]\n\n",v.vertexShaderDefault="\nvoid main() {\n  isf_vertShaderInit();\n}\n",v.vertexShaderSkeleton="\nprecision highp float;\nprecision highp int;\nvoid isf_vertShaderInit();\n\nattribute vec2 position; // -1..1\n\nuniform int     PASSINDEX;\nuniform vec2    RENDERSIZE;\nvarying vec2    isf_FragNormCoord; // 0..1\nvec2    isf_fragCoord; // Pixel Space\n\n[[uniforms]]\n\n[[main]]\nvoid isf_vertShaderInit(void)  {\ngl_Position = vec4( position, 0.0, 1.0 );\n  isf_FragNormCoord = vec2((gl_Position.x+1.0)/2.0, (gl_Position.y+1.0)/2.0);\n  isf_fragCoord = floor(isf_FragNormCoord * RENDERSIZE);\n  [[functions]]\n}\n";var x=v;function w(t){const e=t.split("\n");for(let t=0;t<e.length;t++)if(console.log("line",e[t]),-1!==e[t].indexOf("main()"))return t;return-1}const b=o.a.eval;function N(t){this.gl=t,this.uniforms=[],this.contextState=new a(this.gl),this.setupPaintToScreen(),this.startTime=Date.now(),this.lastRenderTime=Date.now(),this.frameIndex=0}N.prototype.loadSource=function(t,e){const r=new x;r.parse(t,e),this.sourceChanged(r.fragmentShader,r.vertexShader,r)},N.prototype.sourceChanged=function(t,e,r){if(this.fragmentShader=t,this.vertexShader=e,this.model=r,!this.model.valid)return this.valid=!1,this.error=this.model.error,void(this.errorLine=this.model.errorLine);try{this.valid=!0,this.error=null,this.errorLine=null,this.setupGL(),this.initUniforms();for(let t=0;t<r.inputs.length;t++){const e=r.inputs[t];void 0!==e.DEFAULT&&this.setValue(e.NAME,e.DEFAULT)}}catch(t){this.valid=!1,this.error=t,this.errorLine=function(t,e,r){const n=w(e),o=w(r),i=/ERROR: (\d+):(\d+): (.*)/g.exec(t.message)[2];return parseInt(i,10)+o-n}(t,this.fragmentShader,this.model.rawFragmentShader)}},N.prototype.initUniforms=function(){this.uniforms=this.findUniforms(this.fragmentShader);const t=this.model.inputs;for(let e=0;e<t.length;++e){const r=t[e],n=this.uniforms[r.NAME];n&&(n.value=this.model[r.NAME],"t"===n.type&&(n.texture=new c({},this.contextState)))}this.pushTextures()},N.prototype.setValue=function(t,e){this.program.use();const r=this.uniforms[t];r?(r.value=e,"t"===r.type&&(r.textureLoaded=!1),this.pushUniform(r)):console.error(`No uniform named ${t}`)},N.prototype.setNormalizedValue=function(t,e){const r=this.model.inputs;let n=null;for(let e=0;e<r.length;e++){const o=r[e];if(o.NAME===t){n=o;break}}n&&void 0!==n.MIN&&void 0!==n.MAX?this.setValue(t,n.MIN+(n.MAX-n.MIN)*e):console.log("Trying to set normalized value without MIN and MAX input",t,n)},N.prototype.setupPaintToScreen=function(){return this.paintProgram=new u(this.gl,this.basicVertexShader,this.basicFragmentShader),this.paintProgram.bindVertices()},N.prototype.setupGL=function(){this.cleanup(),this.program=new u(this.gl,this.vertexShader,this.fragmentShader),this.program.bindVertices(),this.generatePersistentBuffers()},N.prototype.generatePersistentBuffers=function(){this.renderBuffers=[];const t=this.model.passes;for(let e=0;e<t.length;++e){const r=t[e],n=new h(r,this.contextState);r.buffer=n,this.renderBuffers.push(n)}},N.prototype.paintToScreen=function(t,e){this.paintProgram.use(),this.gl.bindFramebuffer(this.gl.FRAMEBUFFER,null),this.gl.viewport(0,0,t.width,t.height);const r=this.paintProgram.getUniformLocation("tex");e.readTexture().bind(r),this.gl.drawArrays(this.gl.TRIANGLES,0,6),this.program.use()},N.prototype.pushTextures=function(){Object.keys(this.uniforms).forEach(t=>{const e=this.uniforms[t];"t"===e.type&&this.pushTexture(e)})},N.prototype.pushTexture=function(t){if(!t.value)return;if("OffscreenCanvas"!==t.value.constructor.name&&"CANVAS"!==t.value.tagName&&!t.value.complete&&4!==t.value.readyState)return;const e=this.program.getUniformLocation(t.name);if(t.texture.bind(e),this.gl.texImage2D(this.gl.TEXTURE_2D,0,this.gl.RGBA,this.gl.RGBA,this.gl.UNSIGNED_BYTE,t.value),!t.textureLoaded){const e=t.value;t.textureLoaded=!0;const r=e.naturalWidth||e.width||e.videoWidth,n=e.naturalHeight||e.height||e.videoHeight;this.setValue(`_${t.name}_imgSize`,[r,n]),this.setValue(`_${t.name}_imgRect`,[0,0,1,1]),this.setValue(`_${t.name}_flip`,!1)}},N.prototype.pushUniforms=function(){for(const t of this.uniforms)this.pushUniform(t)},N.prototype.pushUniform=function(t){const e=this.program.getUniformLocation(t.name);if(-1!==e){if("t"===t.type)return void this.pushTexture(t);const r=t.value;switch(t.type){case"f":this.gl.uniform1f(e,r);break;case"v2":this.gl.uniform2f(e,r[0],r[1]);break;case"v3":this.gl.uniform3f(e,r[0],r[1],r[2]);break;case"v4":this.gl.uniform4f(e,r[0],r[1],r[2],r[3]);break;case"i":this.gl.uniform1i(e,r);break;case"color":this.gl.uniform4f(e,r[0],r[1],r[2],r[3]);break;default:console.log(`Unknown type for uniform setting ${t.type}`,t)}}},N.prototype.findUniforms=function(t){const e=t.split("\n"),r={},n=e.length;for(let t=0;t<n;++t){const n=e[t].trim();if(0===n.indexOf("uniform")){const t=n.split(" "),e=t[2].substring(0,t[2].length-1),o=this.typeToUniform(t[1]);o.name=e,r[e]=o}}return r},N.prototype.typeToUniform=function(t){switch(t){case"float":return{type:"f",value:0};case"vec2":return{type:"v2",value:[0,0]};case"vec3":return{type:"v3",value:[0,0,0]};case"vec4":return{type:"v4",value:[0,0,0,0]};case"bool":case"int":return{type:"i",value:0};case"color":return{type:"v4",value:[0,0,0,0]};case"point2D":return{type:"v2",value:[0,0],isPoint:!0};case"sampler2D":return{type:"t",value:{complete:!1,readyState:0},texture:null,textureUnit:null};default:throw new Error(`Unknown uniform type in ISFRenderer.typeToUniform: ${t}`)}},N.prototype.setDateUniforms=function(){const t=Date.now();this.setValue("TIME",(t-this.startTime)/1e3),this.setValue("TIMEDELTA",(t-this.lastRenderTime)/1e3),this.setValue("FRAMEINDEX",this.frameIndex++);const e=new Date;this.setValue("DATE",[e.getFullYear(),e.getMonth()+1,e.getDate(),3600*e.getHours()+60*e.getMinutes()+e.getSeconds()]),this.lastRenderTime=t},N.prototype.draw=function(t){this.contextState.reset(),this.program.use(),this.setDateUniforms();const e=this.renderBuffers;for(let t=0;t<e.length;++t){const r=e[t],n=r.readTexture(),o=this.program.getUniformLocation(r.name);n.bind(o),r.name&&(this.setValue(`_${r.name}_imgSize`,[r.width,r.height]),this.setValue(`_${r.name}_imgRect`,[0,0,1,1]),this.setValue(`_${r.name}_flip`,!1))}let r=null;const n=this.model.passes;for(let e=0;e<n.length;++e){const o=n[e];this.setValue("PASSINDEX",e);const i=o.buffer;if(o.target){const e=this.evaluateSize(t,o.width),n=this.evaluateSize(t,o.height);i.setSize(e,n);const a=i.writeTexture();this.gl.bindFramebuffer(this.gl.FRAMEBUFFER,i.fbo),this.gl.framebufferTexture2D(this.gl.FRAMEBUFFER,this.gl.COLOR_ATTACHMENT0,this.gl.TEXTURE_2D,a.texture,0),this.setValue("RENDERSIZE",[i.width,i.height]),r=i,this.gl.viewport(0,0,e,n)}else{const e=t.width,n=t.height;this.gl.bindTexture(this.gl.TEXTURE_2D,null),this.gl.bindFramebuffer(this.gl.FRAMEBUFFER,null),this.setValue("RENDERSIZE",[e,n]),r=null,this.gl.viewport(0,0,e,n)}this.gl.drawArrays(this.gl.TRIANGLES,0,6),this.gl.bindTexture(this.gl.TEXTURE_2D,null),this.gl.bindFramebuffer(this.gl.FRAMEBUFFER,null)}for(let t=0;t<e.length;++t)e[t].flip();r&&this.paintToScreen(t,r)},N.prototype.evaluateSize=function(t,e){let r=(e+="").replace("$WIDTH",t.offsetWidth||t.width).replace("$HEIGHT",t.offsetHeight||t.height);for(const t in this.uniforms)if({}.hasOwnProperty.call(this.uniforms,t)){const e=this.uniforms[t];r=r.replace(`$${t}`,e.value)}return b(r)},N.prototype.cleanup=function(){if(this.contextState.reset(),this.renderBuffers)for(let t=0;t<this.renderBuffers.length;++t)this.renderBuffers[t].destroy()},N.prototype.basicVertexShader="precision mediump float;\nprecision mediump int;\nattribute vec2 position; // -1..1\nvarying vec2 texCoord;\n\nvoid main(void) {\n  // Since webgl doesn't support ftransform, we do this by hand.\n  gl_Position = vec4(position, 0, 1);\n  texCoord = position;\n}\n",N.prototype.basicFragmentShader="precision mediump float;\nuniform sampler2D tex;\nvarying vec2 texCoord;\nvoid main()\n{\n  gl_FragColor = texture2D(tex, texCoord * 0.5 + 0.5);\n  //gl_FragColor = vec4(texCoord.x);\n}";var E=N;var S={convertFragment:function(t){const e=y(t),r=e.objectValue,n=r.PERSISTENT_BUFFERS||[];return r.PASSES&&r.PASSES.forEach(t=>{-1!==n.indexOf(t.TARGET)&&(t.persistent=!0)}),delete r.PERSISTENT_BUFFERS,t=(t=t.replace(e.stringValue,JSON.stringify(r,null,2))).replace(/vv_FragNormCoord/g,"isf_FragNormCoord")},convertVertex:function(t){return t=(t=t.replace(/vv_vertShaderInit/g,"isf_vertShaderInit")).replace(/vv_FragNormCoord/g,"isf_FragNormCoord")}};r.d(e,"Renderer",function(){return E}),r.d(e,"Parser",function(){return x}),r.d(e,"Upgrader",function(){return S}),r.d(e,"MetadataExtractor",function(){return y})}])});