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r.sent()?[4,this.setBackend(n)]:[3,4];case 3:return r.sent(),[2];case 4:return e++,[3,1];case 5:throw new Error("Could not initialize any backends, all backend initializations failed.")}})})},Object.defineProperty(t.prototype,"backend",{get:function(){if(null!=this.pendingBackendInit)throw new Error("Backend '"+this.backendName+"' has not yet been initialized. Make sure to await tf.ready() before calling other methods");if(null==this.backendInstance){var t=this.initializeBackendsAndReturnBest(),e=t.name;if(t.asyncInit)throw new Error("The highest priority backend '"+e+"' has not yet been initialized. Make sure to await tf.ready() before calling other methods");this.setBackend(e)}return this.backendInstance},enumerable:!0,configurable:!0}),t.prototype.backendNames=function(){return Object.keys(this.registryFactory)},t.prototype.findBackend=function(t){if(!(t in this.registry)){if(!(t in this.registryFactory))return null;if(this.initializeBackend(t).asyncInit)return null}return this.registry[t]},t.prototype.findBackendFactory=function(t){return t in this.registryFactory?this.registryFactory[t].factory:null},t.prototype.registerBackend=function(t,e,n){return void 0===n&&(n=1),t in this.registryFactory?(console.warn(t+" backend was already registered. Reusing existing backend factory."),!1):(this.registryFactory[t]={factory:e,priority:n},!0)},t.prototype.setBackend=function(t){return c(this,void 0,void 0,function(){var e,n,r;return l(this,function(o){switch(o.label){case 0:if(null==this.registryFactory[t])throw new Error("Backend name '"+t+"' not found in registry");return this.backendName=t,null!=this.registry[t]?[3,4]:(this.backendInstance=null,e=this.initializeBackend(t),n=e.success,e.asyncInit?[4,n]:[3,2]);case 1:return r=o.sent(),[3,3];case 2:r=n,o.label=3;case 3:if(!r)return[2,!1];o.label=4;case 4:return this.backendInstance=this.registry[t],this.profiler=new ot(this.backendInstance),[2,!0]}})})},t.prototype.initializeBackend=function(t){var e=this,n=Mt.registryFactory[t];if(null==n)throw new Error("Cannot initialize backend "+t+", no registration found.");try{var r=n.factory();if(Promise.resolve(r)===r){var o=++this.pendingBackendInitId,i=r.then(function(n){return!(o<e.pendingBackendInitId||(e.registry[t]=n,e.pendingBackendInit=null,0))}).catch(function(n){return!(o<e.pendingBackendInitId||(e.pendingBackendInit=null,console.warn("Initialization of backend "+t+" failed"),console.warn(n.stack||n.message),1))});return this.pendingBackendInit=i,{success:i,asyncInit:!0}}return this.registry[t]=r,{success:!0,asyncInit:!1}}catch(e){return console.warn("Initialization of backend "+t+" failed"),console.warn(e.stack||e.message),{success:!1,asyncInit:!1}}},t.prototype.removeBackend=function(t){if(!(t in this.registryFactory))throw new Error(t+" backend not found in registry");this.backendName===t&&null!=this.pendingBackendInit&&this.pendingBackendInitId++,t in this.registry&&(this.registry[t].dispose(),delete this.registry[t]),delete this.registryFactory[t],this.backendName===t&&(this.pendingBackendInit=null,this.backendName=null,this.backendInstance=null)},t.prototype.getSortedBackends=function(){var t=this;if(0===Object.keys(this.registryFactory).length)throw new Error("No backend found in registry.");return Object.keys(this.registryFactory).sort(function(e,n){return t.registryFactory[n].priority-t.registryFactory[e].priority})},t.prototype.initializeBackendsAndReturnBest=function(){for(var t=this.getSortedBackends(),e=0;e<t.length;e++){var n=t[e],r=this.initializeBackend(n),o=r.success,i=r.asyncInit;if(i||o)return{name:n,asyncInit:i}}throw new Error("Could not initialize any backends, all backend initializations failed.")},t.prototype.moveData=function(t,e){this.write(t,e,this.readSync(e))},t.prototype.tidy=function(t,e){var n,r=this,o=null;if(null==e){if("function"!=typeof t)throw new Error("Please provide a function to tidy()");e=t}else{if("string"!=typeof t&&!(t instanceof String))throw new Error("When calling with two arguments, the first argument to tidy() must be a string");if("function"!=typeof e)throw new Error("When calling with two arguments, the 2nd argument to tidy() must be a function");o=t}return this.scopedRun(function(){return r.startScope(o)},function(){return r.endScope(n)},function(){return(n=e())instanceof Promise&&console.error("Cannot return a Promise inside of tidy."),n})},t.prototype.scopedRun=function(t,e,n){t();try{var r=n();return e(),r}catch(t){throw e(),t}},t.prototype.nextTensorId=function(){return t.nextTensorId++},t.prototype.nextVariableId=function(){return t.nextVariableId++},t.prototype.clone=function(t){var e=mt.make(t.shape,{dataId:t.dataId},t.dtype);return this.addTapeNode([t],e,function(t){return[t.toFloat()]}),e},t.prototype.runKernel=function(t,e,n){var r,o=this,i=[],a=this.isTapeOn(),s=null!=this.state.activeScope?this.state.activeScope.name:"",u=function(t){a&&(i=t.map(function(t){return o.keep(o.clone(t))}))},c=this.state.numBytes,l=this.state.numTensors;if(this.scopedRun(function(){return o.state.kernelDepth++},function(){return o.state.kernelDepth--},function(){r=o.ENV.getBool("DEBUG")?o.profiler.profileKernel(s,function(){return t(o.backend,u)}):t(o.backend,u)}),a){var h={id:this.state.nextTapeNodeId++,name:s,inputs:e,outputs:Array.isArray(r)?r:[r],saved:i};null!=n&&(h.gradient=function(t){return n(t,i)}),this.state.activeTape.push(h)}return this.state.profiling&&this.state.activeProfile.kernels.push({name:s,bytesAdded:this.state.numBytes-c,totalBytesSnapshot:this.state.numBytes,tensorsAdded:this.state.numTensors-l,totalTensorsSnapshot:this.state.numTensors,inputShapes:Object.keys(e).map(function(t){return e[t].shape}),outputShape:Array.isArray(r)?r.map(function(t){return t.shape}):r.shape}),r},t.prototype.registerTensor=function(t,e){var n=this.state.tensorInfo.has(t.dataId)?this.state.tensorInfo.get(t.dataId).refCount:0;if(this.state.numTensors++,"string"===t.dtype&&this.state.numStringTensors++,0===n){this.state.numDataBuffers++;var r=0;"complex64"!==t.dtype&&"string"!==t.dtype&&(r=t.size*U(t.dtype)),this.state.tensorInfo.set(t.dataId,{backend:null!=e?e:this.backend,dtype:t.dtype,shape:t.shape,bytes:r,refCount:0}),this.state.numBytes+=r,null!=e?e.register(t.dataId,t.shape,t.dtype):this.backend.register(t.dataId,t.shape,t.dtype)}this.state.tensorInfo.get(t.dataId).refCount++,t instanceof gt||this.track(t)},t.prototype.registerVariable=function(t){if(null!=this.state.registeredVariables[t.name])throw new Error("Variable with name "+t.name+" was already registered");this.state.registeredVariables[t.name]=t},t.prototype.disposeTensor=function(t){if(this.state.tensorInfo.has(t.dataId)){this.state.numTensors--,"string"===t.dtype&&this.state.numStringTensors--;var e=this.state.tensorInfo.get(t.dataId);e.refCount<=1?("complex64"!==t.dtype&&(this.state.numBytes-=e.bytes),this.state.numDataBuffers--,e.backend.disposeData(t.dataId),this.state.tensorInfo.delete(t.dataId)):this.state.tensorInfo.get(t.dataId).refCount--}},t.prototype.disposeVariables=function(){for(var t in this.state.registeredVariables){var e=this.state.registeredVariables[t];this.disposeVariable(e)}},t.prototype.disposeVariable=function(t){this.disposeTensor(t),null!=this.state.registeredVariables[t.name]&&delete this.state.registeredVariables[t.name]},t.prototype.memory=function(){var t=this.backend.memory();return t.numTensors=this.state.numTensors,t.numDataBuffers=this.state.numDataBuffers,t.numBytes=this.state.numBytes,this.state.numStringTensors>0&&(t.unreliable=!0,null==t.reasons&&(t.reasons=[]),t.reasons.push("Memory usage by string tensors is approximate (2 bytes per character)")),t},t.prototype.profile=function(t){return c(this,void 0,void 0,function(){var e,n;return l(this,function(r){return this.state.profiling=!0,e=this.state.numBytes,n=this.state.numTensors,this.state.activeProfile.kernels=[],this.state.activeProfile.result=t(),this.state.profiling=!1,this.state.activeProfile.peakBytes=Math.max.apply(Math,this.state.activeProfile.kernels.map(function(t){return t.totalBytesSnapshot})),this.state.activeProfile.newBytes=this.state.numBytes-e,this.state.activeProfile.newTensors=this.state.numTensors-n,[2,this.state.activeProfile]})})},t.prototype.isTapeOn=function(){return this.state.gradientDepth>0&&0===this.state.kernelDepth},t.prototype.addTapeNode=function(t,e,n){var r={};t.forEach(function(t,e){r[e]=t});var o={id:this.state.nextTapeNodeId++,name:this.state.activeScope.name,inputs:r,outputs:[e],gradient:function(t){var e=n(t),r={};return e.forEach(function(t,e){r[e]=function(){return t}}),r}};this.state.activeTape.push(o)},t.prototype.keep=function(t){return t.kept=!0,t},t.prototype.startTape=function(){0===this.state.gradientDepth&&(this.state.activeTape=[]),this.state.gradientDepth++},t.prototype.endTape=function(){this.state.gradientDepth--},t.prototype.startScope=function(t){var e={track:[],name:"unnamed scope",id:this.state.nextScopeId++};t&&(e.name=t),this.state.scopeStack.push(e),this.state.activeScope=e},t.prototype.endScope=function(t){for(var e=this,n=kt(t),r=new Set(n.map(function(t){return t.id})),o=0;o<this.state.activeScope.track.length;o++){var i=this.state.activeScope.track[o];i.kept||r.has(i.id)||i.dispose()}var a=this.state.scopeStack.pop();this.state.activeScope=0===this.state.scopeStack.length?null:this.state.scopeStack[this.state.scopeStack.length-1],n.forEach(function(t){t.kept||t.scopeId!==a.id||e.track(t)})},t.prototype.gradients=function(t,e,n,r){var o=this;if(void 0===r&&(r=!1),b(e.length>0,function(){return"gradients() received an empty list of xs."}),null!=n&&"float32"!==n.dtype)throw new Error("dy must have 'float32' dtype, but has '"+n.dtype+"'");var i=this.scopedRun(function(){return o.startTape()},function(){return o.endTape()},function(){return o.tidy("forward",t)});b(i instanceof mt,function(){return"The result y returned by f() must be a tensor."});var a=function(t,e,n){for(var r={},o={},i=0;i<e.length;i++)r[e[i].id]=!0;for(i=0;i<t.length;i++){var a=(d=t[i]).inputs;for(var s in a){for(var u=a[s],c=!1,l=0;l<e.length;l++)if(r[u.id]){d.outputs.forEach(function(t){return r[t.id]=!0}),c=!0,o[d.id]=!0;break}if(c)break}}var h={};h[n.id]=!0;var p={};for(i=t.length-1;i>=0;i--)for(a=(d=t[i]).inputs,l=0;l<d.outputs.length;l++)if(h[d.outputs[l].id]){for(var s in a)h[a[s].id]=!0,p[d.id]=!0;break}var f=[];for(i=0;i<t.length;i++){var d;if(o[(d=t[i]).id]&&p[d.id]){var v={};for(var s in d.inputs){var m=d.inputs[s];r[m.id]&&(v[s]=m)}var g=Object.assign({},d);g.inputs=v,g.outputs=d.outputs,f.push(g)}}return f}(this.state.activeTape,e,i);if(!r&&0===a.length&&e.length>0)throw new Error("Cannot compute gradient of y=f(x) with respect to x. Make sure that the f you passed encloses all operations that lead from x to y.");return this.tidy("backward",function(){var t,r,s={};s[i.id]=null==n?(r=J(_(t=i.shape),"float32"),mt.make(t,{values:r})):n,function(t,e,n){for(var r=function(r){var o=e[r],i=[];if(o.outputs.forEach(function(e){var n=t[e.id];if(null!=n)i.push(n);else{var r=mt.make(e.shape,{values:Z(e.size,e.dtype)},e.dtype);i.push(r)}}),null==o.gradient)throw new Error("Cannot compute gradient: gradient function not found for "+o.name+".");var a=o.gradient(1===o.outputs.length?i[0]:i),s=function(e){if(!(e in a))throw new Error("Cannot backprop through input "+e+". Available gradients found: "+Object.keys(a)+".");var r=n(function(){return a[e]()});if("float32"!==r.dtype)throw new Error("Error in gradient for op "+o.name+". The gradient of input "+e+" must have 'float32' dtype, but has '"+r.dtype+"'");var i=o.inputs[e];if(!I(r.shape,i.shape))throw new Error("Error in gradient for op "+o.name+". The gradient of input '"+e+"' has shape '"+r.shape+"', which does not match the shape of the input '"+i.shape+"'");if(null==t[i.id])t[i.id]=r;else{var s=t[i.id];t[i.id]=s.add(r),s.dispose()}};for(var u in o.inputs)s(u)},o=e.length-1;o>=0;o--)r(o)}(s,a,function(t){return o.tidy(t)});var u=e.map(function(t){return s[t.id]});return 0===o.state.gradientDepth&&(o.state.activeTape.forEach(function(t){for(var e in t.saved)t.saved[e].dispose()}),o.state.activeTape=null),{value:i,grads:u}})},t.prototype.customGrad=function(t){var e=this;return b($(t),function(){return"The f passed in customGrad(f) must be a function."}),function(){for(var n,r=[],o=0;o<arguments.length;o++)r[o]=arguments[o];b(r.every(function(t){return t instanceof mt}),function(){return"The args passed in customGrad(f)(x1, x2,...) must all be tensors"});var i={};return r.forEach(function(t,e){i[e]=t}),e.runKernel(function(e,o){return b((n=t.apply(void 0,r.concat([o]))).value instanceof mt,function(){return"The function f passed in customGrad(f) must return an object where `obj.value` is a tensor"}),b($(n.gradFunc),function(){return"The function f passed in customGrad(f) must return an object where `obj.gradFunc` is a function."}),n.value},i,function(t,e){var o=n.gradFunc(t,e),i=Array.isArray(o)?o:[o];b(i.length===r.length,function(){return"The function f passed in customGrad(f) must return an object where `obj.gradFunc` is a function that returns the same number of tensors as inputs passed to f(...)."}),b(i.every(function(t){return t instanceof mt}),function(){return"The function f passed in customGrad(f) must return an object where `obj.gradFunc` is a function that returns a list of only tensors."});var a={};return i.forEach(function(t,e){a[e]=function(){return t}}),a})}},t.prototype.write=function(t,e,n){var r=this.state.tensorInfo.get(e),o=r.backend;if(t=t||this.backend,"string"===r.dtype){var i=V(n);this.state.numBytes+=i-r.bytes,r.bytes=i}t!==o&&(o.disposeData(e),r.backend=t,t.register(e,r.shape,r.dtype)),t.write(e,n)},t.prototype.readSync=function(t){return this.state.tensorInfo.get(t).backend.readSync(t)},t.prototype.read=function(t){return this.state.tensorInfo.get(t).backend.read(t)},t.prototype.fromPixels=function(t,e){return this.backend.fromPixels(t,e)},t.prototype.time=function(t){return c(this,void 0,void 0,function(){var e,n;return l(this,function(r){switch(r.label){case 0:return e=tt(),[4,this.backend.time(t)];case 1:return(n=r.sent()).wallMs=tt()-e,[2,n]}})})},t.prototype.track=function(t){return null!=this.state.activeScope&&(t.scopeId=this.state.activeScope.id,this.state.activeScope.track.push(t)),t},Object.defineProperty(t.prototype,"registeredVariables",{get:function(){return this.state.registeredVariables},enumerable:!0,configurable:!0}),t.prototype.reset=function(){for(var t in this.pendingBackendInitId++,this.state.dispose(),this.ENV.reset(),this.state=new Dt,this.registry)this.registry[t].dispose(),delete this.registry[t];this.backendName=null,this.backendInstance=null,this.pendingBackendInit=null},t.nextTensorId=0,t.nextVariableId=0,t}(),Mt=function(){var t=function(){if(null==At){var t=void 0;if("undefined"!=typeof window)t=window;else if("undefined"!=typeof global)t=global;else if("undefined"!=typeof process)t=process;else{if("undefined"==typeof self)throw new Error("Could not find a global object");t=self}At=t}return At}();if(null==t._tfengine){var e=new h(t);t._tfengine=new Ft(e)}return d(t._tfengine.ENV),ft=function(){return t._tfengine},t._tfengine}();function Ot(){return"undefined"!=typeof window||"undefined"!=typeof WorkerGlobalScope}f.registerFlag("DEBUG",function(){return!1},function(t){t&&console.warn("Debugging mode is ON. The output of every math call will be downloaded to CPU and checked for NaNs. This significantly impacts performance.")}),f.registerFlag("IS_BROWSER",function(){return Ot()}),f.registerFlag("IS_NODE",function(){return"undefined"!=typeof process&&void 0!==process.versions&&void 0!==process.versions.node}),f.registerFlag("IS_CHROME",function(){return"undefined"!=typeof navigator&&null!=navigator&&null!=navigator.userAgent&&/Chrome/.test(navigator.userAgent)&&/Google Inc/.test(navigator.vendor)}),f.registerFlag("PROD",function(){return!1}),f.registerFlag("TENSORLIKE_CHECK_SHAPE_CONSISTENCY",function(){return f.getBool("DEBUG")}),f.registerFlag("DEPRECATION_WARNINGS_ENABLED",function(){return!0}),f.registerFlag("IS_TEST",function(){return!1});var Pt={},Bt={alpha:!1,antialias:!1,premultipliedAlpha:!1,preserveDrawingBuffer:!1,depth:!1,stencil:!1,failIfMajorPerformanceCaveat:!0};function Lt(t,e){Pt[t]=e}function Wt(t){t in Pt||(Pt[t]=function(t){if(1!==t&&2!==t)throw new Error("Cannot get WebGL rendering context, WebGL is disabled.");var e=function(t){if("undefined"!=typeof OffscreenCanvas&&2===t)return new OffscreenCanvas(300,150);if("undefined"!=typeof document)return document.createElement("canvas");throw new Error("Cannot create a canvas in this context")}(t);return e.addEventListener("webglcontextlost",function(e){e.preventDefault(),delete Pt[t]},!1),1===t?e.getContext("webgl",Bt)||e.getContext("experimental-webgl",Bt):e.getContext("webgl2",Bt)}(t));var e=Pt[t];return e.isContextLost()?(delete Pt[t],Wt(t)):(e.disable(e.DEPTH_TEST),e.disable(e.STENCIL_TEST),e.disable(e.BLEND),e.disable(e.DITHER),e.disable(e.POLYGON_OFFSET_FILL),e.disable(e.SAMPLE_COVERAGE),e.enable(e.SCISSOR_TEST),e.enable(e.CULL_FACE),e.cullFace(e.BACK),Pt[t])}function zt(t,e,n){var r=n();return e&&function(t){var e=t.getError();if(e!==t.NO_ERROR)throw new Error("WebGL Error: "+jt(t,e))}(t),r}var Ut=5.96e-8,Vt=65504;function Gt(t){return!!(f.getBool("WEBGL_RENDER_FLOAT32_ENABLED")||0===t||Ut<Math.abs(t)&&Math.abs(t)<Vt)}function jt(t,e){switch(e){case t.NO_ERROR:return"NO_ERROR";case t.INVALID_ENUM:return"INVALID_ENUM";case t.INVALID_VALUE:return"INVALID_VALUE";case t.INVALID_OPERATION:return"INVALID_OPERATION";case t.INVALID_FRAMEBUFFER_OPERATION:return"INVALID_FRAMEBUFFER_OPERATION";case t.OUT_OF_MEMORY:return"OUT_OF_MEMORY";case t.CONTEXT_LOST_WEBGL:return"CONTEXT_LOST_WEBGL";default:return"Unknown error code "+e}}function Ht(t,e,n){return de(t,e,function(){return t.getExtension(n)},'Extension "'+n+'" not supported on this browser.')}function qt(t,e,n){var r=de(t,e,function(){return t.createShader(t.VERTEX_SHADER)},"Unable to create vertex WebGLShader.");if(zt(t,e,function(){return t.shaderSource(r,n)}),zt(t,e,function(){return t.compileShader(r)}),!1===t.getShaderParameter(r,t.COMPILE_STATUS))throw console.log(t.getShaderInfoLog(r)),new Error("Failed to compile vertex shader.");return r}function $t(t,e,n){var r=de(t,e,function(){return t.createShader(t.FRAGMENT_SHADER)},"Unable to create fragment 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t.linkProgram(n)}),!1===t.getProgramParameter(n,t.LINK_STATUS))throw console.log(t.getProgramInfoLog(n)),new Error("Failed to link vertex and fragment shaders.")}function Zt(t,e,n){if(zt(t,e,function(){return t.validateProgram(n)}),!1===t.getProgramParameter(n,t.VALIDATE_STATUS))throw console.log(t.getProgramInfoLog(n)),new Error("Shader program validation failed.")}function te(t,e,n){var r=de(t,e,function(){return t.createBuffer()},"Unable to create WebGLBuffer");return zt(t,e,function(){return t.bindBuffer(t.ARRAY_BUFFER,r)}),zt(t,e,function(){return t.bufferData(t.ARRAY_BUFFER,n,t.STATIC_DRAW)}),r}function ee(t,e,n){var r=de(t,e,function(){return t.createBuffer()},"Unable to create WebGLBuffer");return zt(t,e,function(){return t.bindBuffer(t.ELEMENT_ARRAY_BUFFER,r)}),zt(t,e,function(){return t.bufferData(t.ELEMENT_ARRAY_BUFFER,n,t.STATIC_DRAW)}),r}function ne(t,e){return de(t,e,function(){return t.createTexture()},"Unable to create WebGLTexture.")}function re(t,e){var 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255.0) / 255.0;\n    }\n\n    highp vec4 c = vec4(0,0,0,0);\n\n    highp float e = floor(log2(av));\n    highp float m = exp2(fract(log2(av))) - 1.0;\n\n    c[2] = floor(128.0 * m);\n    m -= c[2] / 128.0;\n    c[1] = floor(32768.0 * m);\n    m -= c[1] / 32768.0;\n    c[0] = floor(8388608.0 * m);\n\n    highp float ebias = e + 127.0;\n    c[3] = floor(ebias / 2.0);\n    ebias -= c[3] * 2.0;\n    c[2] += floor(ebias) * 128.0;\n\n    c[3] += 128.0 * step(0.0, -v);\n\n    return c / 255.0;\n  }\n";function ho(t,e,n,r){var o=[];t.forEach(function(t){var e=_(t.shapeInfo.logicalShape);t.shapeInfo.isUniform?o.push("uniform float "+t.name+(e>1?"["+e+"]":"")+";"):(o.push("uniform sampler2D "+t.name+";"),o.push("uniform int offset"+t.name+";"))});var i,a,s=o.join("\n"),u=t.map(function(t){return function(t,e,n){void 0===n&&(n=!1);var r="";r+=n?function t(e){var n,r,o;switch(e.shapeInfo.logicalShape.length){case 0:return n=e.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=so(),"\n    vec4 "+r+"() {\n      return "+o.texture2D+"("+n+", halfCR);\n    }\n  ";case 1:return function(t){var e=t.name,n="get"+e.charAt(0).toUpperCase()+e.slice(1),r=t.shapeInfo.texShape,o=[Math.ceil(r[0]/2),Math.ceil(r[1]/2)],i=so();return"\n    vec4 "+n+"(int index) {\n      vec2 uv = packedUVfrom1D(\n        "+o[0]+", "+o[1]+", index);\n      return "+i.texture2D+"("+e+", uv);\n    }\n  "}(e);case 2:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=t.shapeInfo.texShape,i=o[0],a=o[1],s=so();if(null!=o&&I(e,o))return"\n      vec4 "+r+"(int row, int col) {\n        vec2 uv = (vec2(col, row) + halfCR) / vec2("+a+".0, "+i+".0);\n\n        return "+s.texture2D+"("+n+", uv);\n      }\n    ";var u=[Math.ceil(o[0]/2),Math.ceil(o[1]/2)],c=Math.ceil(e[1]/2);return"\n    vec4 "+r+"(int row, int col) {\n      vec2 uv = packedUVfrom2D("+c+", "+u[0]+", "+u[1]+", row, col);\n      return "+s.texture2D+"("+n+", uv);\n    }\n  "}(e);case 3:return function(e){var n=e.shapeInfo.logicalShape,r=e.name,o="get"+r.charAt(0).toUpperCase()+r.slice(1),i=e.shapeInfo.texShape,a=[Math.ceil(i[0]/2),Math.ceil(i[1]/2)];if(1===n[0]){var s=n.slice(1),u=bo(e,s);return"\n        "+t(u)+"\n        vec4 "+o+"(int b, int row, int col) {\n          return "+o+"("+wo(["b","row","col"],[1,2])+");\n        }\n      "}var c=a[0],l=a[1],h=Math.ceil(n[2]/2),p=h*Math.ceil(n[1]/2),f=so();return"\n    vec4 "+o+"(int b, int row, int col) {\n      vec2 uv = packedUVfrom3D(\n        "+c+", "+l+", "+p+", "+h+", b, row, col);\n      return "+f.texture2D+"("+r+", uv);\n    }\n  "}(e);default:return function(t){for(var e=t.shapeInfo.logicalShape,n=e.length,r=t.name,o="get"+r.charAt(0).toUpperCase()+r.slice(1),i=t.shapeInfo.texShape,a=[Math.ceil(i[0]/2),Math.ceil(i[1]/2)],s=a[0],u=a[1],c=Math.ceil(e[n-1]/2),l=c*Math.ceil(e[n-2]/2),h="int b, int row, int col",p="b * "+l+" + (row / 2) * "+c+" + (col / 2)",f=2;f<n-1;f++)h="int b"+f+", "+h,l*=e[n-f-1],p="b"+f+" * "+l+" + "+p;var d=so();return"\n    vec4 "+o+"("+h+") {\n      int index = "+p+";\n      int texR = index / "+u+";\n      int texC = index - texR * "+u+";\n      vec2 uv = (vec2(texC, texR) + halfCR) / vec2("+u+", "+s+");\n      return "+d.texture2D+"("+r+", uv);\n    }\n  "}(e)}}(t):function t(e){var n=e.shapeInfo.logicalShape;switch(n.length){case 0:return function(t){var e=t.name,n="get"+e.charAt(0).toUpperCase()+e.slice(1);if(t.shapeInfo.isUniform)return"float "+n+"() {return "+e+";}";var r=t.shapeInfo.texShape,o=r[0],i=r[1];if(1===o&&1===i)return"\n      float "+n+"() {\n        return sampleTexture("+e+", halfCR);\n      }\n    ";var a=t.shapeInfo.texShape,s=a[0],u=a[1],c=go(e);return"\n    float "+n+"() {\n      vec2 uv = uvFromFlat("+s+", "+u+", "+c+");\n      return sampleTexture("+e+", uv);\n    }\n  "}(e);case 1:return function(t){var e=t.name,n="get"+e.charAt(0).toUpperCase()+e.slice(1);if(t.shapeInfo.isUniform)return"\n      float "+n+"(int index) {\n        "+yo(t)+"\n      }\n    ";var r=t.shapeInfo.texShape,o=r[0],i=r[1];if(1===i&&1===o)return"\n      float "+n+"(int index) {\n        return sampleTexture("+e+", halfCR);\n      }\n    ";var a=go(e);return 1===i?"\n      float "+n+"(int index) {\n        vec2 uv = vec2(0.5, (float(index + "+a+") + 0.5) / "+o+".0);\n        return sampleTexture("+e+", uv);\n      }\n    ":1===o?"\n      float "+n+"(int index) {\n        vec2 uv = vec2((float(index + "+a+") + 0.5) / "+i+".0, 0.5);\n        return sampleTexture("+e+", uv);\n      }\n    ":"\n    float "+n+"(int index) {\n      vec2 uv = uvFromFlat("+o+", "+i+", index + "+a+");\n      return sampleTexture("+e+", uv);\n    }\n  "}(e);case 2:return function(e){var n=e.shapeInfo.logicalShape,r=e.name,o="get"+r.charAt(0).toUpperCase()+r.slice(1),i=e.shapeInfo.texShape;if(null!=i&&I(n,i)){var a=i[0],s=i[1];return"\n    float "+o+"(int row, int col) {\n      vec2 uv = (vec2(col, row) + halfCR) / vec2("+s+".0, "+a+".0);\n      return sampleTexture("+r+", uv);\n    }\n  "}var u=F(n),c=u.newShape,l=u.keptDims,h=c;if(h.length<n.length){var p=bo(e,h);return"\n      "+t(p)+"\n      float "+o+"(int row, int col) {\n        return "+o+"("+wo(["row","col"],l)+");\n      }\n    "}if(e.shapeInfo.isUniform)return"\n      float "+o+"(int row, int col) {\n        int index = round(dot(vec2(row, col), vec2("+n[1]+", 1)));\n        "+yo(e)+"\n      }\n    ";var f=i[0],d=i[1],v=go(r);return 1===d?"\n    float "+o+"(int row, int col) {\n      float index = dot(vec3(row, col, "+v+"), vec3("+n[1]+", 1, 1));\n      vec2 uv = vec2(0.5, (index + 0.5) / "+f+".0);\n      return sampleTexture("+r+", uv);\n    }\n  ":1===f?"\n    float "+o+"(int row, int col) {\n      float index = dot(vec3(row, col, "+v+"), vec3("+n[1]+", 1, 1));\n      vec2 uv = vec2((index + 0.5) / "+d+".0, 0.5);\n      return sampleTexture("+r+", uv);\n    }\n  ":"\n  float "+o+"(int row, int col) {\n    // Explicitly use integer operations as dot() only works on floats.\n    int index = row * "+n[1]+" + col + "+v+";\n    vec2 uv = uvFromFlat("+f+", "+d+", index);\n    return sampleTexture("+r+", uv);\n  }\n"}(e);case 3:return function(e){var n=e.shapeInfo.logicalShape,r=e.name,o="get"+r.charAt(0).toUpperCase()+r.slice(1),i=n[1]*n[2],a=n[2],s=F(n),u=s.newShape,c=s.keptDims,l=u;if(l.length<n.length){var h=bo(e,l);return"\n        "+t(h)+"\n        float "+o+"(int row, int col, int depth) {\n          return "+o+"("+wo(["row","col","depth"],c)+");\n        }\n      "}if(e.shapeInfo.isUniform)return"\n      float "+o+"(int row, int col, int depth) {\n        int index = round(dot(vec3(row, col, depth),\n                          vec3("+i+", "+a+", 1)));\n        "+yo(e)+"\n      }\n    ";var p=e.shapeInfo.texShape,f=p[0],d=p[1],v=e.shapeInfo.flatOffset;if(d===i&&null==v)return"\n        float "+o+"(int row, int col, int depth) {\n          float texR = float(row);\n          float texC = dot(vec2(col, depth), vec2("+a+", 1));\n          vec2 uv = (vec2(texC, texR) + halfCR) /\n                     vec2("+d+".0, "+f+".0);\n          return sampleTexture("+r+", uv);\n        }\n      ";if(d===a&&null==v)return"\n    float "+o+"(int row, int col, int depth) {\n      float texR = dot(vec2(row, col), vec2("+n[1]+", 1));\n      float texC = float(depth);\n      vec2 uv = (vec2(texC, texR) + halfCR) / vec2("+d+".0, "+f+".0);\n      return sampleTexture("+r+", uv);\n    }\n  ";var m=go(r);return"\n      float "+o+"(int row, int col, int depth) {\n        // Explicitly use integer operations as dot() only works on floats.\n        int index = row * "+i+" + col * "+a+" + depth + "+m+";\n        vec2 uv = uvFromFlat("+f+", "+d+", index);\n        return sampleTexture("+r+", uv);\n      }\n  "}(e);case 4:return function(e){var n=e.shapeInfo.logicalShape,r=e.name,o="get"+r.charAt(0).toUpperCase()+r.slice(1),i=n[3],a=n[2]*i,s=n[1]*a,u=F(n),c=u.newShape,l=u.keptDims;if(c.length<n.length){var h=bo(e,c);return"\n      "+t(h)+"\n      float "+o+"(int row, int col, int depth, int depth2) {\n        return "+o+"("+wo(["row","col","depth","depth2"],l)+");\n      }\n    "}if(e.shapeInfo.isUniform)return"\n      float "+o+"(int row, int col, int depth, int depth2) {\n        int index = round(dot(vec4(row, col, depth, depth2),\n                          vec4("+s+", "+a+", "+i+", 1)));\n        "+yo(e)+"\n      }\n    ";var p=e.shapeInfo.flatOffset,f=e.shapeInfo.texShape,d=f[0],v=f[1];if(v===s&&null==p)return"\n      float "+o+"(int row, int col, int depth, int depth2) {\n        float texR = float(row);\n        float texC =\n            dot(vec3(col, depth, depth2),\n                vec3("+a+", "+i+", 1));\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                   vec2("+v+".0, "+d+".0);\n        return sampleTexture("+r+", uv);\n      }\n    ";if(v===i&&null==p)return"\n      float "+o+"(int row, int col, int depth, int depth2) {\n        float texR = dot(vec3(row, col, depth),\n                         vec3("+n[1]*n[2]+", "+n[2]+", 1));\n        float texC = float(depth2);\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                  vec2("+v+".0, "+d+".0);\n        return sampleTexture("+r+", uv);\n      }\n    ";var m=go(r);return"\n    float "+o+"(int row, int col, int depth, int depth2) {\n      // Explicitly use integer operations as dot() only works on floats.\n      int index = row * "+s+" + col * "+a+" +\n          depth * "+i+" + depth2;\n      vec2 uv = uvFromFlat("+d+", "+v+", index + "+m+");\n      return sampleTexture("+r+", uv);\n    }\n  "}(e);case 5:return function(e){var n=e.shapeInfo.logicalShape,r=e.name,o="get"+r.charAt(0).toUpperCase()+r.slice(1),i=n[4],a=n[3]*i,s=n[2]*a,u=n[1]*s,c=F(n),l=c.newShape,h=c.keptDims;if(l.length<n.length){var p=bo(e,l);return"\n      "+t(p)+"\n      float "+o+"(int row, int col, int depth, int depth2, int depth3) {\n        return "+o+"("+wo(["row","col","depth","depth2","depth3"],h)+");\n      }\n    "}if(e.shapeInfo.isUniform)return"\n      float "+o+"(int row, int col, int depth, int depth2, int depth3) {\n        float index = dot(\n          vec4(row, col, depth, depth2),\n          vec4("+u+", "+s+", "+a+", "+i+")) +\n          depth3;\n        "+yo(e)+"\n      }\n    ";var f=e.shapeInfo.flatOffset,d=e.shapeInfo.texShape,v=d[0],m=d[1];if(m===u&&null==f)return"\n      float "+o+"(int row, int col, int depth, int depth2, int depth3) {\n        int texR = row;\n        float texC = dot(vec4(col, depth, depth2, depth3),\n                         vec4("+s+", "+a+", "+i+", 1));\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                   vec2("+m+".0, "+v+".0);\n        return sampleTexture("+r+", uv);\n      }\n    ";if(m===i&&null==f)return"\n      float "+o+"(int row, int col, int depth, int depth2, int depth3) {\n        float texR = dot(\n          vec4(row, col, depth, depth2),\n          vec4("+n[1]*n[2]*n[3]+",\n               "+n[2]*n[3]+", "+n[3]+", 1));\n        int texC = depth3;\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                  vec2("+m+".0, "+v+".0);\n        return sampleTexture("+r+", uv);\n      }\n    ";var g=go(r);return"\n    float "+o+"(int row, int col, int depth, int depth2, int depth3) {\n      // Explicitly use integer operations as dot() only works on floats.\n      int index = row * "+u+" + col * "+s+" + depth * "+a+" +\n          depth2 * "+i+" + depth3 + "+g+";\n      vec2 uv = uvFromFlat("+v+", "+m+", index);\n      return sampleTexture("+r+", uv);\n    }\n  "}(e);case 6:return function(e){var n=e.shapeInfo.logicalShape,r=e.name,o="get"+r.charAt(0).toUpperCase()+r.slice(1),i=F(n),a=i.newShape,s=i.keptDims;if(a.length<n.length){var u=bo(e,a);return"\n      "+t(u)+"\n      float "+o+"(int row, int col, int depth,\n                    int depth2, int depth3, int depth4) {\n        return "+o+"("+wo(["row","col","depth","depth2","depth3","depth4"],s)+");\n      }\n    "}var c=n[5],l=n[4]*c,h=n[3]*l,p=n[2]*h,f=n[1]*p;if(e.shapeInfo.isUniform)return"\n      float "+o+"(int row, int col, int depth,\n                  int depth2, int depth3, int depth4) {\n        int index = round(dot(\n          vec4(row, col, depth, depth2),\n          vec4("+f+", "+p+", "+h+", "+l+")) +\n          dot(\n            vec2(depth3, depth4),\n            vec2("+c+", 1)));\n        "+yo(e)+"\n      }\n    ";var d=e.shapeInfo.flatOffset,v=e.shapeInfo.texShape,m=v[0],g=v[1];if(g===f&&null==d)return"\n      float "+o+"(int row, int col, int depth,\n                    int depth2, int depth3, int depth4) {\n        int texR = row;\n        float texC = dot(vec4(col, depth, depth2, depth3),\n          vec4("+p+", "+h+", "+l+", "+c+")) +\n               float(depth4);\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                   vec2("+g+".0, "+m+".0);\n        return sampleTexture("+r+", uv);\n      }\n    ";if(g===c&&null==d)return"\n      float "+o+"(int row, int col, int depth,\n                    int depth2, int depth3, int depth4) {\n        float texR = dot(vec4(row, col, depth, depth2),\n          vec4("+n[1]*n[2]*n[3]*n[4]+",\n               "+n[2]*n[3]*n[4]+",\n               "+n[3]*n[4]+",\n               "+n[4]+")) + float(depth3);\n        int texC = depth4;\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                  vec2("+g+".0, "+m+".0);\n        return sampleTexture("+r+", uv);\n      }\n    ";var y=go(r);return"\n    float "+o+"(int row, int col, int depth,\n                  int depth2, int depth3, int depth4) {\n      // Explicitly use integer operations as dot() only works on floats.\n      int index = row * "+f+" + col * "+p+" + depth * "+h+" +\n          depth2 * "+l+" + depth3 * "+c+" + depth4 + "+y+";\n      vec2 uv = uvFromFlat("+m+", "+g+", index);\n      return sampleTexture("+r+", uv);\n    }\n  "}(e);default:throw new Error(n.length+"-D input sampling is not yet supported")}}(t);var o=t.shapeInfo.logicalShape,i=e.logicalShape;return o.length<=i.length&&(r+=n?function(t,e){var n,r=t.name,o=r.charAt(0).toUpperCase()+r.slice(1),i="get"+o+"AtOutCoords",a=t.shapeInfo.logicalShape.length,s=e.logicalShape.length,u=kr(t.shapeInfo.logicalShape,e.logicalShape),c=xo(s),l=s-a,h=["x","y","z","w","u","v"];n=0===a?"":s<2&&u.length>=1?"coords = 0;":u.map(function(t){return"coords."+h[t+l]+" = 0;"}).join("\n");var p;p=s<2&&a>0?"coords":t.shapeInfo.logicalShape.map(function(t,e){return"coords."+h[e+l]}).join(", ");var f="return outputValue;",d=1===_(t.shapeInfo.logicalShape),v=1===_(e.logicalShape);if(1!==a||d||v){if(d&&!v)f=1===s?"\n        return vec4(outputValue.x, outputValue.x, 0., 0.);\n      ":"\n        return vec4(outputValue.x);\n      ";else if(u.length){var m=a-2,g=a-1;u.indexOf(m)>-1&&u.indexOf(g)>-1?f="return vec4(outputValue.x);":u.indexOf(m)>-1?f="return vec4(outputValue.x, outputValue.y, outputValue.x, outputValue.y);":u.indexOf(g)>-1&&(f="return vec4(outputValue.xx, outputValue.zz);")}}else f="\n      return vec4(outputValue.xy, outputValue.xy);\n    ";return"\n    vec4 "+i+"() {\n      "+c+" coords = getOutputCoords();\n      "+n+"\n      vec4 outputValue = get"+o+"("+p+");\n      "+f+"\n    }\n  "}(t,e):function(t,e){var n=t.name,r=n.charAt(0).toUpperCase()+n.slice(1),o="get"+r+"AtOutCoords",i=e.texShape,a=t.shapeInfo.texShape,s=t.shapeInfo.logicalShape.length,u=e.logicalShape.length;if(!t.shapeInfo.isUniform&&s===u&&null==t.shapeInfo.flatOffset&&I(a,i))return"\n      float "+o+"() {\n        return sampleTexture("+n+", resultUV);\n      }\n    ";var c=xo(u),l=kr(t.shapeInfo.logicalShape,e.logicalShape),h=u-s,p=["x","y","z","w","u","v"];return"\n    float "+o+"() {\n      "+c+" coords = getOutputCoords();\n      "+(0===s?"":u<2&&l.length>=1?"coords = 0;":l.map(function(t){return"coords."+p[t+h]+" = 0;"}).join("\n"))+"\n      return get"+r+"("+(u<2&&s>0?"coords":t.shapeInfo.logicalShape.map(function(t,e){return"coords."+p[e+h]}).join(", "))+");\n    }\n  "}(t,e)),r}(t,e,r)}).join("\n"),c=e.texShape,l=so(),h="\n    float sampleTexture(sampler2D textureSampler, vec2 uv) {\n      return "+l.texture2D+"(textureSampler, uv).r;\n    }\n  ",p=function(t){return t.version+"\n    precision highp float;\n    precision highp int;\n    precision highp sampler2D;\n    "+t.varyingFs+" vec2 resultUV;\n    "+t.defineOutput+"\n    const vec2 halfCR = vec2(0.5, 0.5);\n\n    struct ivec5\n    {\n      int x;\n      int y;\n      int z;\n      int w;\n      int u;\n    };\n\n    struct ivec6\n    {\n      int x;\n      int y;\n      int z;\n      int w;\n      int u;\n      int v;\n    };\n\n    uniform float NAN;\n    #define isnan(value) isnan_custom(value)\n    "+t.defineSpecialNaN+"\n    bvec4 isnan_custom(vec4 val) {\n      return bvec4(isnan(val.x), isnan(val.y), isnan(val.z), isnan(val.w));\n    }\n\n    "+t.defineSpecialInf+"\n    "+t.defineRound+"\n\n    int imod(int x, int y) {\n      return x - y * (x / y);\n    }\n\n    int idiv(int a, int b, float sign) {\n      int res = a / b;\n      int mod = imod(a, b);\n      if (sign < 0. && mod != 0) {\n        res -= 1;\n      }\n      return res;\n    }\n\n    //Based on the work of Dave Hoskins\n    //https://www.shadertoy.com/view/4djSRW\n    #define HASHSCALE1 443.8975\n    float random(float seed){\n      vec2 p = resultUV * seed;\n      vec3 p3  = fract(vec3(p.xyx) * HASHSCALE1);\n      p3 += dot(p3, p3.yzx + 19.19);\n      return fract((p3.x + p3.y) * p3.z);\n    }\n\n    "+po+"\n    "+fo+"\n    "+vo+"\n  "}(l);return e.isPacked?(i=function(t,e){switch(t.length){case 0:return"\n    int getOutputCoords() {\n      return 0;\n    }\n  ";case 1:return function(t,e){var n=[Math.ceil(e[0]/2),Math.ceil(e[1]/2)];return 1===n[0]?"\n      int getOutputCoords() {\n        return 2 * int(resultUV.x * "+n[1]+".0);\n      }\n    ":1===n[1]?"\n      int getOutputCoords() {\n        return 2 * int(resultUV.y * "+n[0]+".0);\n      }\n    ":"\n    int getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+n[0]+", "+n[1]+"));\n      return 2 * (resTexRC.x * "+n[1]+" + resTexRC.y);\n    }\n  "}(0,e);case 2:return function(t,e){var n=[Math.ceil(e[0]/2),Math.ceil(e[1]/2)];if(I(t,e))return"\n      ivec2 getOutputCoords() {\n        return 2 * ivec2(resultUV.yx * vec2("+n[0]+", "+n[1]+"));\n      }\n    ";var r=Math.ceil(t[1]/2);return"\n    ivec2 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+n[0]+", "+n[1]+"));\n\n      int index = resTexRC.x * "+n[1]+" + resTexRC.y;\n      int r = 2 * (index / "+r+");\n      int c = imod(index, "+r+") * 2;\n\n      return ivec2(r, c);\n    }\n  "}(t,e);case 3:return n=t,r=e,o=[Math.ceil(r[0]/2),Math.ceil(r[1]/2)],a=(i=Math.ceil(n[2]/2))*Math.ceil(n[1]/2),"\n    ivec3 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+o[0]+", "+o[1]+"));\n      int index = resTexRC.x * "+o[1]+" + resTexRC.y;\n\n      int b = index / "+a+";\n      index -= b * "+a+";\n\n      int r = 2 * (index / "+i+");\n      int c = imod(index, "+i+") * 2;\n\n      return ivec3(b, r, c);\n    }\n  ";default:return function(t,e){for(var n=[Math.ceil(e[0]/2),Math.ceil(e[1]/2)],r=Math.ceil(t[t.length-1]/2),o=r*Math.ceil(t[t.length-2]/2),i=o,a="",s="b, r, c",u=2;u<t.length-1;u++)a="\n      int b"+u+" = index / "+(i*=t[t.length-u-1])+";\n      index -= b"+u+" * "+i+";\n    "+a,s="b"+u+", "+s;return"\n    ivec"+t.length+" getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+n[0]+", "+n[1]+"));\n      int index = resTexRC.x * "+n[1]+" + resTexRC.y;\n\n      "+a+"\n\n      int b = index / "+o+";\n      index -= b * "+o+";\n\n      int r = 2 * (index / "+r+");\n      int c = imod(index, "+r+") * 2;\n\n      return ivec"+t.length+"("+s+");\n    }\n  "}(t,e)}var n,r,o,i,a}(e.logicalShape,c),a="\n    void setOutput(vec4 val) {\n      "+l.output+" = val;\n    }\n  "):(i=function(t,e){switch(t.length){case 0:return"\n    int getOutputCoords() {\n      return 0;\n    }\n  ";case 1:return function(t,e){return 1===e[0]?"\n      int getOutputCoords() {\n        return int(resultUV.x * "+e[1]+".0);\n      }\n    ":1===e[1]?"\n      int getOutputCoords() {\n        return int(resultUV.y * "+e[0]+".0);\n      }\n    ":"\n    int getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+e[0]+", "+e[1]+"));\n      return resTexRC.x * "+e[1]+" + resTexRC.y;\n    }\n  "}(0,e);case 2:return function(t,e){return I(t,e)?"\n      ivec2 getOutputCoords() {\n        return ivec2(resultUV.yx * vec2("+e[0]+", "+e[1]+"));\n      }\n    ":1===t[1]?"\n      ivec2 getOutputCoords() {\n        ivec2 resTexRC = ivec2(resultUV.yx *\n                               vec2("+e[0]+", "+e[1]+"));\n        int index = resTexRC.x * "+e[1]+" + resTexRC.y;\n        return ivec2(index, 0);\n      }\n    ":1===t[0]?"\n      ivec2 getOutputCoords() {\n        ivec2 resTexRC = ivec2(resultUV.yx *\n                               vec2("+e[0]+", "+e[1]+"));\n        int index = resTexRC.x * "+e[1]+" + resTexRC.y;\n        return ivec2(0, index);\n      }\n    ":"\n    ivec2 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+e[0]+", "+e[1]+"));\n      int index = resTexRC.x * "+e[1]+" + resTexRC.y;\n      int r = index / "+t[1]+";\n      int c = index - r * "+t[1]+";\n      return ivec2(r, c);\n    }\n  "}(t,e);case 3:return n=e,r=uo(["r","c","d"],t),"\n    ivec3 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+n[0]+", "+n[1]+"));\n      int index = resTexRC.x * "+n[1]+" + resTexRC.y;\n      "+r+"\n      return ivec3(r, c, d);\n    }\n  ";case 4:return function(t,e){var n=uo(["r","c","d","d2"],t);return"\n    ivec4 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n        vec2("+e[0]+", "+e[1]+"));\n      int index = resTexRC.x * "+e[1]+" + resTexRC.y;\n      "+n+"\n      return ivec4(r, c, d, d2);\n    }\n  "}(t,e);case 5:return function(t,e){var n=uo(["r","c","d","d2","d3"],t);return"\n    ivec5 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx * vec2("+e[0]+",\n                             "+e[1]+"));\n\n      int index = resTexRC.x * "+e[1]+" + resTexRC.y;\n\n      "+n+"\n\n      ivec5 outShape = ivec5(r, c, d, d2, d3);\n      return outShape;\n    }\n  "}(t,e);case 6:return function(t,e){var n=uo(["r","c","d","d2","d3","d4"],t);return"\n    ivec6 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n        vec2("+e[0]+", "+e[1]+"));\n      int index = resTexRC.x * "+e[1]+" + resTexRC.y;\n\n      "+n+"\n\n      ivec6 result = ivec6(r, c, d, d2, d3, d4);\n      return result;\n    }\n  "}(t,e);default:throw new Error(t.length+"-D output sampling is not yet supported")}var n,r}(e.logicalShape,c),a="\n    void setOutput(float val) {\n      "+l.output+" = vec4(val, 0, 0, 0);\n    }\n  "),r&&(p+=mo),[p,h,a,s,i,u,n].join("\n")}var po="\nvec2 uvFromFlat(int texNumR, int texNumC, int index) {\n  int texR = index / texNumC;\n  int texC = index - texR * texNumC;\n  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);\n}\nvec2 packedUVfrom1D(int texNumR, int texNumC, int index) {\n  int texelIndex = index / 2;\n  int texR = texelIndex / texNumC;\n  int texC = texelIndex - texR * texNumC;\n  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);\n}\n",fo="\nvec2 packedUVfrom2D(int texelsInLogicalRow, int texNumR,\n  int texNumC, int row, int col) {\n  int texelIndex = (row / 2) * texelsInLogicalRow + (col / 2);\n  int texR = texelIndex / texNumC;\n  int texC = texelIndex - texR * texNumC;\n  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);\n}\n",vo="\nvec2 packedUVfrom3D(int texNumR, int texNumC,\n    int texelsInBatch, int texelsInLogicalRow, int b,\n    int row, int col) {\n  int index = b * texelsInBatch + (row / 2) * texelsInLogicalRow + (col / 2);\n  int texR = index / texNumC;\n  int texC = index - texR * texNumC;\n  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);\n}\n",mo="\n  float getChannel(vec4 frag, vec2 innerDims) {\n    vec2 modCoord = mod(innerDims, 2.);\n    return modCoord.x == 0. ?\n      (modCoord.y == 0. ? frag.r : frag.g) :\n      (modCoord.y == 0. ? frag.b : frag.a);\n  }\n  float getChannel(vec4 frag, int dim) {\n    float modCoord = mod(float(dim), 2.);\n    return modCoord == 0. ? frag.r : frag.g;\n  }\n";function go(t){return"offset"+t}function yo(t){var e=t.name,n=_(t.shapeInfo.logicalShape);return n<2?"return "+e+";":"\n    for (int i = 0; i < "+n+"; i++) {\n      if (i == index) {\n        return "+e+"[i];\n      }\n    }\n  "}function xo(t){if(t<=1)return"int";if(2===t)return"ivec2";if(3===t)return"ivec3";if(4===t)return"ivec4";if(5===t)return"ivec5";if(6===t)return"ivec6";throw Error("GPU for rank "+t+" is not yet supported")}function bo(t,e){var n=JSON.parse(JSON.stringify(t));return n.shapeInfo.logicalShape=e,n}function wo(t,e){return e.map(function(e){return t[e]}).join(", ")}var Co=function(t,e,n,r){this.variableNames=["A"],this.usesPackedTextures=!0,b(t.length>2,function(){return"Packed arg"+(n.charAt(0).toUpperCase()+n.slice(1))+" supports only inputs with rank above 2."});var o=t[t.length-1],i=Math.ceil(o/e);this.outputShape=t.slice(0,-1),i>1&&this.outputShape.push(i),r||this.variableNames.push("bestIndicesA");var a,s,u=this.outputShape,c=u.length,l=xo(c),h=ao("coords",c);if(1===i){var p=xo(s=c+1);a="\n        "+p+" sourceLocR = "+p+"("+h.join()+", 0);\n        ++"+h[c-1]+";\n        "+p+" sourceLocG = "+p+"("+h.join()+", 0);\n        ++"+h[c-2]+";\n        "+p+" sourceLocA = "+p+"("+h.join()+", 0);\n        --"+h[c-1]+";\n        "+p+" sourceLocB = "+p+"("+h.join()+", 0);\n        --"+h[c-2]+";"}else s=c,a="\n        "+l+" sourceLocR = coords;\n        ++"+h[c-1]+";\n        "+l+" sourceLocG = coords;\n        ++"+h[c-2]+";\n        "+l+" sourceLocA = coords;\n        --"+h[c-1]+";\n        "+l+" sourceLocB = coords;\n        --"+h[c-2]+";";var f=["x","y","z","w","u","v"].slice(0,s),d="."+f[s-1],v=f.map(function(t){return"int "+t}),m=ao("sourceLocR",s-1).concat("inIdx.r"),g=ao("sourceLocG",s-1).concat("inIdx.g"),y=ao("sourceLocB",s-1).concat("inIdx.b"),x=ao("sourceLocA",s-1).concat("inIdx.a"),w="max"===n?"greaterThan":"lessThan",C=r?"":"\n          inIdx = round(vec4(getBestIndicesAChannel("+m.join()+"),\n                             getBestIndicesAChannel("+g.join()+"),\n                             getBestIndicesAChannel("+y.join()+"),\n                             getBestIndicesAChannel("+x.join()+")));",E="vec4(\n            getAChannel("+m.join()+"),\n            hasNextCol ? getAChannel("+g.join()+") : 0.,\n            hasNextRow ? getAChannel("+y.join()+") : 0.,\n            hasNextRow && hasNextCol ? getAChannel("+x.join()+") : 0.)",_=r?"":"\n      float getBestIndicesAChannel("+v.join()+") {\n        return getChannel(getBestIndicesA("+f.join()+"),\n                                          vec2("+f.slice(-2).join()+"));\n      }";this.userCode="\n      float getAChannel("+v.join()+") {\n        return getChannel(getA("+f.join()+"),\n                               vec2("+f.slice(-2).join()+"));\n      }\n      "+_+"\n      void main() {\n        "+l+" coords = getOutputCoords();\n        bool hasNextCol = "+h[c-1]+" < "+(u[c-1]-1)+";\n        bool hasNextRow = "+h[c-2]+" < "+(u[c-2]-1)+";\n        "+a+"\n        ivec4 srcIdx = ivec4(sourceLocR"+d+", sourceLocG"+d+",\n          sourceLocB"+d+", sourceLocA"+d+") * "+e+";\n        ivec4 inIdx = srcIdx;\n        vec4 bestIndex = vec4(inIdx);\n        vec4 bestValue = "+E+";\n\n        for (int i = 0; i < "+e+"; i++) {\n          inIdx = srcIdx;\n          "+C+"\n          vec4 candidate = "+E+";\n          bvec4 nan = isnan(candidate);\n          bvec4 replace = bvec4(\n            vec4("+w+"(candidate, bestValue)) * (vec4(1.0) - vec4(nan)));\n\n          bestValue = vec4(replace.x  ? candidate.x : bestValue.x,\n                           replace.y  ? candidate.y : bestValue.y,\n                           replace.z  ? candidate.z : bestValue.z,\n                           replace.w  ? candidate.w : bestValue.w);\n          bestIndex = mix(bestIndex, vec4(inIdx), vec4(replace));\n          srcIdx++;\n        }\n        setOutput(bestIndex);\n      }\n    "},Eo=function(t){this.variableNames=["dy"],this.outputShape=t.inShape;var e=t.filterHeight,n=t.filterWidth,r=t.strideHeight,o=t.strideWidth,i=t.dilationHeight,a=t.dilationWidth,s=t.effectiveFilterHeight,u=t.effectiveFilterWidth,c=s-1-t.padInfo.top,l=u-1-t.padInfo.left,h=1/(e*n);this.userCode="\n      const ivec2 pads = ivec2("+c+", "+l+");\n      const float avgMultiplier = float("+h+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n\n        ivec2 dyRCCorner = coords.yz - pads;\n        int dyRCorner = dyRCCorner.x;\n        int dyCCorner = dyRCCorner.y;\n\n        // Convolve dy(?, ?, d) with pos mask(:, :, d) to get dx(xR, xC, d).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n        for (int wR = 0; wR < "+s+";\n            wR += "+i+") {\n          float dyR = float(dyRCorner + wR) / "+r+".0;\n\n          if (dyR < 0.0 || dyR >= "+t.outHeight+".0 || fract(dyR) > 0.0) {\n            continue;\n          }\n          int idyR = int(dyR);\n\n          for (int wC = 0; wC < "+u+";\n            wC+= "+a+") {\n            float dyC = float(dyCCorner + wC) / "+o+".0;\n\n            if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n                fract(dyC) > 0.0) {\n              continue;\n            }\n            int idyC = int(dyC);\n\n            float dyValue = getDy(b, idyR, idyC, d);\n\n            dotProd += dyValue * avgMultiplier;\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},_o=function(t,e,n,r,o,i){this.outputShape=[],this.variableNames=["x","mean","variance"],Tr(t,e),Tr(t,n);var a="0.0";null!=r&&(Tr(t,r),this.variableNames.push("offset"),a="getOffsetAtOutCoords()");var s="1.0";null!=o&&(Tr(t,o),this.variableNames.push("scale"),s="getScaleAtOutCoords()"),this.outputShape=t,this.userCode="\n      void main() {\n        float x = getXAtOutCoords();\n        float mean = getMeanAtOutCoords();\n        float variance = getVarianceAtOutCoords();\n        float offset = "+a+";\n        float scale = "+s+";\n        float inv = scale * inversesqrt(variance + float("+i+"));\n        setOutput(dot(vec3(x, -mean, offset), vec3(inv, inv, 1)));\n      }\n    "},Io=function(t,e,n,r,o,i){this.usesPackedTextures=!0,this.variableNames=["x","mean","variance"],Tr(t,e),Tr(t,n);var a="vec4(0.0)";null!=r&&(Tr(t,r),this.variableNames.push("offset"),a="getOffsetAtOutCoords()");var s="vec4(1.0)";null!=o&&(Tr(t,o),this.variableNames.push("scale"),s="getScaleAtOutCoords()"),this.outputShape=t,this.userCode="\n      void main() {\n        vec4 offset = "+a+";\n        vec4 scale = "+s+";\n\n        vec4 x = getXAtOutCoords();\n        vec4 mean = getMeanAtOutCoords();\n        vec4 variance = getVarianceAtOutCoords();\n\n        vec4 inv = scale * inversesqrt(variance + vec4("+i+"));\n\n        setOutput((x - mean) * inv + offset);\n      }\n    "},So=function(t,e,n){this.variableNames=["AReal","AImag","BReal","BImag"],this.outputShape=Tr(e,n),this.userCode="\n      float binaryOpComplex(\n          float areal, float aimag, float breal, float bimag) {\n        "+t+"\n      }\n\n      void main() {\n        float areal = getARealAtOutCoords();\n        float aimag = getAImagAtOutCoords();\n        float breal = getBRealAtOutCoords();\n        float bimag = getBImagAtOutCoords();\n        setOutput(binaryOpComplex(areal, aimag, breal, bimag));\n      }\n    "},Ro="return a + b;",No="return a - b;",ko="return a * b;",Ao=function(t,e,n){this.variableNames=["A","B"],this.outputShape=Tr(e,n),this.userCode="\n      float binaryOperation(float a, float b) {\n        "+t+"\n      }\n\n      void main() {\n        float a = getAAtOutCoords();\n        float b = getBAtOutCoords();\n        setOutput(binaryOperation(a, b));\n      }\n    "},To=function(t,e,n,r){void 0===r&&(r=!1),this.variableNames=["A","B"],this.supportsBroadcasting=!0,this.usesPackedTextures=!0,this.outputShape=Tr(e,n);var o=this.outputShape.length,i="";if(r)if(0===o||1===_(this.outputShape))i="\n          result.y = 0.;\n          result.z = 0.;\n          result.w = 0.;\n        ";else if(i="\n          "+xo(o)+" coords = getOutputCoords();\n        ",1===o)i+="\n            result.y = (coords + 1) >= "+this.outputShape[0]+" ? 0. : result.y;\n            result.z = 0.;\n            result.w = 0.;\n          ";else{var a=ao("coords",o);i+="\n            bool nextRowOutOfBounds =\n              ("+a[o-2]+" + 1) >= "+this.outputShape[o-2]+";\n            bool nextColOutOfBounds =\n              ("+a[o-1]+" + 1) >= "+this.outputShape[o-1]+";\n            result.y = nextColOutOfBounds ? 0. : result.y;\n            result.z = nextRowOutOfBounds ? 0. : result.z;\n            result.w = nextColOutOfBounds || nextRowOutOfBounds ? 0. : result.w;\n          "}this.userCode="\n      vec4 binaryOperation(vec4 a, vec4 b) {\n        "+t+"\n      }\n\n      void main() {\n        vec4 a = getAAtOutCoords();\n        vec4 b = getBAtOutCoords();\n\n        vec4 result = binaryOperation(a, b);\n        "+i+"\n\n        setOutput(result);\n      }\n    "},Do=function(){function t(t){this.variableNames=["A"],this.outputShape=t,this.userCode="\n      uniform float min;\n      uniform float max;\n\n      void main() {\n        float value = getAAtOutCoords();\n        if (isnan(value)) {\n          setOutput(value);\n          return;\n        }\n\n        setOutput(clamp(value, min, max));\n      }\n    "}return t.prototype.getCustomSetupFunc=function(t,e){var n=this;return function(r,o){null==n.minLoc&&(n.minLoc=r.getUniformLocationNoThrow(o,"min"),n.maxLoc=r.getUniformLocationNoThrow(o,"max")),r.gl.uniform1f(n.minLoc,t),r.gl.uniform1f(n.maxLoc,e)}},t}(),Fo=function(){function t(t){this.variableNames=["A"],this.usesPackedTextures=!0,this.outputShape=t,this.userCode="\n      uniform float min;\n      uniform float max;\n\n      void main() {\n        vec4 value = getAAtOutCoords();\n\n        if (any(isnan(value))) {\n          setOutput(value);\n          return;\n        }\n\n        setOutput(clamp(value, vec4(min), vec4(max)));\n      }\n    "}return t.prototype.getCustomSetupFunc=function(t,e){var n=this;return function(r,o){null==n.minLoc&&(n.minLoc=r.getUniformLocationNoThrow(o,"min"),n.maxLoc=r.getUniformLocationNoThrow(o,"max")),r.gl.uniform1f(n.minLoc,t),r.gl.uniform1f(n.maxLoc,e)}},t}(),Mo=function(t){this.variableNames=["real","imag"],this.outputShape=t,this.userCode="\n      void main() {\n        float re = abs(getRealAtOutCoords());\n        float im = abs(getImagAtOutCoords());\n        float mx = max(re, im);\n\n        // sadly the length function in glsl is not underflow-safe\n        // (at least not on Intel GPUs). So the safe solution is\n        // to ensure underflow-safety in all cases.\n        setOutput(\n          mx == 0.0 ? 0.0 : mx * length(vec2(1, min(re, im)/mx))\n        );\n      }\n    "},Oo=function(t){this.outputShape=[],this.outputShape=Ye(t,1),this.variableNames=t.map(function(t,e){return"T"+e});var e=new Array(t.length-1);e[0]=t[0][1];for(var n=1;n<e.length;n++)e[n]=e[n-1]+t[n][1];var r=["if (yC < "+e[0]+") setOutput(getT0(yR, yC));"];for(n=1;n<e.length;n++){var o=e[n-1];r.push("else if (yC < "+e[n]+") setOutput(getT"+n+"(yR, yC-"+o+"));")}var i=e.length,a=e[e.length-1];r.push("else setOutput(getT"+i+"(yR, yC-"+a+"));"),this.userCode="\n      void main() {\n        ivec2 coords = getOutputCoords();\n        int yR = coords.x;\n        int yC = coords.y;\n\n        "+r.join("\n        ")+"\n      }\n    "},Po=function(t,e){this.usesPackedTextures=!0,this.outputShape=[],this.outputShape=Ye(t,e);var n=this.outputShape,r=n.length,o=xo(r),i=ao("coords",r),a=["x","y","z","w","u","v"].slice(0,r);this.variableNames=t.map(function(t,e){return"T"+e});var s=new Array(t.length-1);s[0]=t[0][e];for(var u=1;u<s.length;u++)s[u]=s[u-1]+t[u][e];var c=a[e],l="vec2("+a.slice(-2).join()+")",h=a.join(),p="if ("+c+" < "+s[0]+")\n          return getChannel(getT0("+h+"), "+l+");";for(u=1;u<s.length;u++){var f=s[u-1];p+="\n        else if ("+c+" < "+s[u]+") {\n          "+c+" -= "+f+";\n          return getChannel(getT"+u+"("+h+"), "+l+");\n        }"}var d=s.length;p+="\n        else {\n          "+c+" -= "+s[s.length-1]+";\n          return getChannel(getT"+d+"("+h+"), "+l+");\n        }",this.userCode="\n      float getValue("+a.map(function(t){return"int "+t})+") {\n        "+p+"\n      }\n\n      void main() {\n        "+o+" coords = getOutputCoords();\n        vec4 result = vec4(getValue("+i+"), 0., 0., 0.);\n        if (++"+i[r-1]+" < "+n[r-1]+") {\n          result.g = getValue("+i+");\n        }\n        if (++"+i[r-2]+" < "+n[r-2]+") {\n          result.a = getValue("+i+");\n        }\n        if ("+i[r-2]+" < "+n[r-2]+" &&\n            --"+i[r-1]+" < "+n[r-1]+") {\n          result.b = getValue("+i+");\n        }\n        setOutput(result);\n      }\n    "},Bo=function(t){this.variableNames=["x","dy"],this.outputShape=t.filterShape;var e=t.strideHeight,n=t.strideWidth,r=t.padInfo.top,o=t.padInfo.left;this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int wR = coords.x;\n        int wC = coords.y;\n        int d1 = coords.z;\n        int d2 = coords.w;\n\n        // Convolve x(?, ?, d1) with dy(:, :, d2) to get dw(wR, wC, d1, d2).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n\n        for (int b = 0; b < "+t.batchSize+"; b++) {\n          for (int yR = 0; yR < "+t.outHeight+"; yR++) {\n            int xR = wR + yR * "+e+" - "+r+";\n\n            if (xR < 0 || xR >= "+t.inHeight+") {\n              continue;\n            }\n\n            for (int yC = 0; yC < "+t.outWidth+"; yC++) {\n              int xC = wC + yC * "+n+" - "+o+";\n\n              if (xC < 0 || xC >= "+t.inWidth+") {\n                continue;\n              }\n\n              float dyValue = getDy(b, yR, yC, d2);\n              float xValue = getX(b, xR, xC, d1);\n              dotProd += (xValue * dyValue);\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},Lo=function(t){this.variableNames=["dy","W"],this.outputShape=t.inShape;var e=t.filterHeight,n=t.filterWidth,r=t.strideHeight,o=t.strideWidth,i=e-1-t.padInfo.top,a=n-1-t.padInfo.left;this.userCode="\n      const ivec2 pads = ivec2("+i+", "+a+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int batch = coords[0];\n        int d1 = coords[3];\n\n        ivec2 dyCorner = coords.yz - pads;\n        int dyRCorner = dyCorner.x;\n        int dyCCorner = dyCorner.y;\n\n        // Convolve dy(?, ?, d2) with w(:, :, d1, d2) to compute dx(xR, xC, d1).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n        for (int wR = 0; wR < "+e+"; wR++) {\n          float dyR = float(dyRCorner + wR) / "+r+".0;\n\n          if (dyR < 0.0 || dyR >= "+t.outHeight+".0 || fract(dyR) > 0.0) {\n            continue;\n          }\n          int idyR = int(dyR);\n\n          int wRPerm = "+e+" - 1 - wR;\n\n          for (int wC = 0; wC < "+n+"; wC++) {\n            float dyC = float(dyCCorner + wC) / "+o+".0;\n\n            if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n                fract(dyC) > 0.0) {\n              continue;\n            }\n            int idyC = int(dyC);\n\n            int wCPerm = "+n+" - 1 - wC;\n\n            for (int d2 = 0; d2 < "+t.outChannels+"; d2++) {\n              float xValue = getDy(batch, idyR, idyC, d2);\n              float wValue = getW(wRPerm, wCPerm, d1, d2);\n              dotProd += xValue * wValue;\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},Wo=function(t){this.variableNames=["x","dy"],this.outputShape=t.filterShape;var e=t.strideDepth,n=t.strideHeight,r=t.strideWidth,o=t.padInfo.front,i=t.padInfo.top,a=t.padInfo.left;this.userCode="\n      void main() {\n        ivec5 coords = getOutputCoords();\n        int wF = coords.x;\n        int wR = coords.y;\n        int wC = coords.z;\n        int d1 = coords.w;\n        int d2 = coords.u;\n\n        float dotProd = 0.0;\n\n        for (int b = 0; b < "+t.batchSize+"; b++) {\n          for (int yF = 0; yF < "+t.outDepth+"; yF++) {\n            int xF = wF + yF * "+e+" - "+o+";\n\n            if (xF < 0 || xF >= "+t.inDepth+") {\n              continue;\n            }\n\n            for (int yR = 0; yR < "+t.outHeight+"; yR++) {\n              int xR = wR + yR * "+n+" - "+i+";\n\n              if (xR < 0 || xR >= "+t.inHeight+") {\n                continue;\n              }\n\n              for (int yC = 0; yC < "+t.outWidth+"; yC++) {\n                int xC = wC + yC * "+r+" - "+a+";\n\n                if (xC < 0 || xC >= "+t.inWidth+") {\n                  continue;\n                }\n\n                float dyValue = getDy(b, yF, yR, yC, d2);\n                float xValue = getX(b, xF, xR, xC, d1);\n                dotProd += (xValue * dyValue);\n              }\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},zo=function(t){this.variableNames=["dy","W"],this.outputShape=t.inShape;var e=t.filterDepth,n=t.filterHeight,r=t.filterWidth,o=t.strideDepth,i=t.strideHeight,a=t.strideWidth,s=e-1-t.padInfo.front,u=n-1-t.padInfo.top,c=r-1-t.padInfo.left;this.userCode="\n      const ivec3 pads = ivec3("+s+", "+u+", "+c+");\n\n      void main() {\n        ivec5 coords = getOutputCoords();\n        int batch = coords.x;\n        int d1 = coords.u;\n\n\n        ivec3 dyCorner = ivec3(coords.y, coords.z, coords.w) - pads;\n        int dyFCorner = dyCorner.x;\n        int dyRCorner = dyCorner.y;\n        int dyCCorner = dyCorner.z;\n\n        float dotProd = 0.0;\n        for (int wF = 0; wF < "+e+"; wF++) {\n          float dyF = float(dyFCorner + wF) / "+o+".0;\n\n          if (dyF < 0.0 || dyF >= "+t.outDepth+".0 || fract(dyF) > 0.0) {\n            continue;\n          }\n          int idyF = int(dyF);\n\n          int wFPerm = "+e+" - 1 - wF;\n\n          for (int wR = 0; wR < "+n+"; wR++) {\n            float dyR = float(dyRCorner + wR) / "+i+".0;\n\n            if (dyR < 0.0 || dyR >= "+t.outHeight+".0 ||\n              fract(dyR) > 0.0) {\n              continue;\n            }\n            int idyR = int(dyR);\n\n            int wRPerm = "+n+" - 1 - wR;\n\n            for (int wC = 0; wC < "+r+"; wC++) {\n              float dyC = float(dyCCorner + wC) / "+a+".0;\n\n              if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n                  fract(dyC) > 0.0) {\n                continue;\n              }\n              int idyC = int(dyC);\n\n              int wCPerm = "+r+" - 1 - wC;\n\n              for (int d2 = 0; d2 < "+t.outChannels+"; d2++) {\n                float xValue = getDy(batch, idyF, idyR, idyC, d2);\n                float wValue = getW(wFPerm, wRPerm, wCPerm, d1, d2);\n                dotProd += xValue * wValue;\n              }\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},Uo=function(t){this.variableNames=["x","dy"],this.outputShape=t.filterShape;var e=t.strideHeight,n=t.strideWidth,r=t.padInfo.top,o=t.padInfo.left,i=t.outChannels/t.inChannels;this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int wR = coords.x;\n        int wC = coords.y;\n        int d1 = coords.z;\n        int dm = coords.w;\n        int d2 = d1 * "+i+" + dm;\n\n        float dotProd = 0.0;\n\n        // TODO: Vec4 over the batch size\n        for (int b = 0; b < "+t.batchSize+"; b++) {\n          for (int yR = 0; yR < "+t.outHeight+"; yR++) {\n            int xR = wR + yR * "+e+" - "+r+";\n\n            if (xR < 0 || xR >= "+t.inHeight+") {\n              continue;\n            }\n\n            for (int yC = 0; yC < "+t.outWidth+"; yC++) {\n              int xC = wC + yC * "+n+" - "+o+";\n\n              if (xC < 0 || xC >= "+t.inWidth+") {\n                continue;\n              }\n\n              float dyValue = getDy(b, yR, yC, d2);\n              float xValue = getX(b, xR, xC, d1);\n              dotProd += (xValue * dyValue);\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},Vo=function(t){this.variableNames=["dy","W"],this.outputShape=t.inShape;var e=t.filterHeight,n=t.filterWidth,r=t.strideHeight,o=t.strideWidth,i=e-1-t.padInfo.top,a=n-1-t.padInfo.left,s=t.outChannels/t.inChannels;this.userCode="\n      const ivec2 pads = ivec2("+i+", "+a+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int batch = coords[0];\n        int d1 = coords[3];\n        ivec2 dyCorner = coords.yz - pads;\n        int dyRCorner = dyCorner.x;\n        int dyCCorner = dyCorner.y;\n\n        float dotProd = 0.0;\n\n        for (int wR = 0; wR < "+e+"; wR++) {\n          float dyR = float(dyRCorner + wR) / "+r+".0;\n\n          if (dyR < 0.0 || dyR >= "+t.outHeight+".0 || fract(dyR) > 0.0) {\n            continue;\n          }\n          int idyR = int(dyR);\n\n          int wRPerm = "+e+" - 1 - wR;\n\n          for (int wC = 0; wC < "+n+"; wC++) {\n            float dyC = float(dyCCorner + wC) / "+o+".0;\n\n            if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n                fract(dyC) > 0.0) {\n              continue;\n            }\n            int idyC = int(dyC);\n\n            int wCPerm = "+n+" - 1 - wC;\n\n            // TODO: Vec4 over the channelMul\n            for (int dm = 0; dm < "+s+"; dm++) {\n              int d2 = d1 * "+s+" + dm;\n              float xValue = getDy(batch, idyR, idyC, d2);\n              float wValue = getW(wRPerm, wCPerm, d1, dm);\n              dotProd += xValue * wValue;\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},Go=function(t){this.variableNames=["x","W"],this.outputShape=t.outShape;var e=t.padInfo.top,n=t.padInfo.left,r=t.strideHeight,o=t.strideWidth,i=t.dilationHeight,a=t.dilationWidth,s=t.filterHeight,u=t.filterWidth,c=4*Math.floor(t.inChannels/4),l=t.inChannels%4;this.userCode="\n      const ivec2 strides = ivec2("+r+", "+o+");\n      const ivec2 pads = ivec2("+e+", "+n+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int batch = coords[0];\n        int d2 = coords[3];\n\n        ivec2 xRCCorner = coords.yz * strides - pads;\n        int xRCorner = xRCCorner.x;\n        int xCCorner = xRCCorner.y;\n\n        // Convolve x(?, ?, d1) with w(:, :, d1, d2) to get y(yR, yC, d2).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n        for (int wR = 0; wR < "+s+"; wR++) {\n          int xR = xRCorner + wR * "+i+";\n\n          if (xR < 0 || xR >= "+t.inHeight+") {\n            continue;\n          }\n\n          for (int wC = 0; wC < "+u+"; wC++) {\n            int xC = xCCorner + wC * "+a+";\n\n            if (xC < 0 || xC >= "+t.inWidth+") {\n              continue;\n            }\n\n            for (int d1 = 0; d1 < "+c+"; d1 += 4) {\n              vec4 xValues = vec4(\n                getX(batch, xR, xC, d1),\n                getX(batch, xR, xC, d1 + 1),\n                getX(batch, xR, xC, d1 + 2),\n                getX(batch, xR, xC, d1 + 3)\n              );\n              vec4 wValues = vec4(\n                getW(wR, wC, d1, d2),\n                getW(wR, wC, d1 + 1, d2),\n                getW(wR, wC, d1 + 2, d2),\n                getW(wR, wC, d1 + 3, d2)\n              );\n\n              dotProd += dot(xValues, wValues);\n            }\n\n            if ("+(1===l)+") {\n              dotProd +=\n                getX(batch, xR, xC, "+c+") *\n                getW(wR, wC, "+c+", d2);\n            } else if ("+(2===l)+") {\n              vec2 xValues = vec2(\n                getX(batch, xR, xC, "+c+"),\n                getX(batch, xR, xC, "+c+" + 1)\n              );\n              vec2 wValues = vec2(\n                getW(wR, wC, "+c+", d2),\n                getW(wR, wC, "+c+" + 1, d2)\n              );\n              dotProd += dot(xValues, wValues);\n            } else if ("+(3===l)+") {\n              vec3 xValues = vec3(\n                getX(batch, xR, xC, "+c+"),\n                getX(batch, xR, xC, "+c+" + 1),\n                getX(batch, xR, xC, "+c+" + 2)\n              );\n              vec3 wValues = vec3(\n                getW(wR, wC, "+c+", d2),\n                getW(wR, wC, "+c+" + 1, d2),\n                getW(wR, wC, "+c+" + 2, d2)\n              );\n              dotProd += dot(xValues, wValues);\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},jo=function(t){this.variableNames=["x","W"],this.outputShape=t.outShape;var e=t.padInfo.front,n=t.padInfo.top,r=t.padInfo.left,o=t.strideDepth,i=t.strideHeight,a=t.strideWidth,s=t.dilationDepth,u=t.dilationHeight,c=t.dilationWidth,l=t.filterDepth,h=t.filterHeight,p=t.filterWidth,f=4*Math.floor(t.inChannels/4),d=t.inChannels%4;this.userCode="\n      const ivec3 strides = ivec3("+o+", "+i+", "+a+");\n      const ivec3 pads = ivec3("+e+", "+n+", "+r+");\n\n      void main() {\n        ivec5 coords = getOutputCoords();\n        int batch = coords.x;\n        int d2 = coords.u;\n\n        ivec3 xFRCCorner = ivec3(coords.y, coords.z, coords.w) * strides - pads;\n        int xFCorner = xFRCCorner.x;\n        int xRCorner = xFRCCorner.y;\n        int xCCorner = xFRCCorner.z;\n\n        // Convolve x(?, ?, ?, d1) with w(:, :, :, d1, d2) to get\n        // y(yF, yR, yC, d2). ? = to be determined. : = across all\n        // values in that axis.\n        float dotProd = 0.0;\n        for (int wF = 0; wF < "+l+"; wF++) {\n          int xF = xFCorner + wF * "+s+";\n\n          if (xF < 0 || xF >= "+t.inDepth+") {\n            continue;\n          }\n\n          for (int wR = 0; wR < "+h+"; wR++) {\n            int xR = xRCorner + wR * "+u+";\n\n            if (xR < 0 || xR >= "+t.inHeight+") {\n              continue;\n            }\n\n            for (int wC = 0; wC < "+p+"; wC++) {\n              int xC = xCCorner + wC * "+c+";\n\n              if (xC < 0 || xC >= "+t.inWidth+") {\n                continue;\n              }\n\n              for (int d1 = 0; d1 < "+f+"; d1 += 4) {\n                vec4 xValues = vec4(\n                  getX(batch, xF, xR, xC, d1),\n                  getX(batch, xF, xR, xC, d1 + 1),\n                  getX(batch, xF, xR, xC, d1 + 2),\n                  getX(batch, xF, xR, xC, d1 + 3)\n                );\n                vec4 wValues = vec4(\n                  getW(wF, wR, wC, d1, d2),\n                  getW(wF, wR, wC, d1 + 1, d2),\n                  getW(wF, wR, wC, d1 + 2, d2),\n                  getW(wF, wR, wC, d1 + 3, d2)\n                );\n\n                dotProd += dot(xValues, wValues);\n              }\n\n              if ("+(1===d)+") {\n                dotProd +=\n                  getX(batch, xF, xR, xC, "+f+") *\n                  getW(wF, wR, wC, "+f+", d2);\n              } else if ("+(2===d)+") {\n                vec2 xValues = vec2(\n                  getX(batch, xF, xR, xC, "+f+"),\n                  getX(batch, xF, xR, xC, "+f+" + 1)\n                );\n                vec2 wValues = vec2(\n                  getW(wF, wR, wC, "+f+", d2),\n                  getW(wF, wR, wC, "+f+" + 1, d2)\n                );\n                dotProd += dot(xValues, wValues);\n              } else if ("+(3===d)+") {\n                vec3 xValues = vec3(\n                  getX(batch, xF, xR, xC, "+f+"),\n                  getX(batch, xF, xR, xC, "+f+" + 1),\n                  getX(batch, xF, xR, xC, "+f+" + 2)\n                );\n                vec3 wValues = vec3(\n                  getW(wF, wR, wC, "+f+", d2),\n                  getW(wF, wR, wC, "+f+" + 1, d2),\n                  getW(wF, wR, wC, "+f+" + 2, d2)\n                );\n                dotProd += dot(xValues, wValues);\n              }\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},Ho=function(t){this.variableNames=["x","W"],this.outputShape=t.outShape;var e=t.inHeight,n=t.inWidth,r=t.padInfo.top,o=t.padInfo.left,i=t.strideHeight,a=t.strideWidth,s=t.dilationHeight,u=t.dilationWidth,c=t.filterHeight,l=t.filterWidth,h=t.outChannels/t.inChannels;this.userCode="\n      const ivec2 strides = ivec2("+i+", "+a+");\n      const ivec2 pads = ivec2("+r+", "+o+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int batch = coords.x;\n        ivec2 xRCCorner = coords.yz * strides - pads;\n        int d2 = coords.w;\n        int d1 = d2 / "+h+";\n        int q = d2 - d1 * "+h+";\n\n        int xRCorner = xRCCorner.x;\n        int xCCorner = xRCCorner.y;\n\n        // Convolve x(?, ?, d1) with w(:, :, d1, q) to get y(yR, yC, d2).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n        // TODO(dsmilkov): Flatten the two for loops and vec4 the operations.\n        for (int wR = 0; wR < "+c+"; wR++) {\n          int xR = xRCorner + wR * "+s+";\n\n          if (xR < 0 || xR >= "+e+") {\n            continue;\n          }\n\n          for (int wC = 0; wC < "+l+"; wC++) {\n            int xC = xCCorner + wC * "+u+";\n\n            if (xC < 0 || xC >= "+n+") {\n              continue;\n            }\n\n            float xVal = getX(batch, xR, xC, d1);\n            float wVal = getW(wR, wC, d1, q);\n            dotProd += xVal * wVal;\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},qo=function(t){this.variableNames=["x","W"],this.usesPackedTextures=!0,this.outputShape=t.outShape;for(var e=t.inHeight,n=t.inWidth,r=t.padInfo.top,o=t.padInfo.left,i=t.strideHeight,a=t.strideWidth,s=t.dilationHeight,u=t.dilationWidth,c=t.filterHeight,l=t.filterWidth,h=l,p="int xR; int xC; int xCOffset;",f=0;f<c;f++)for(var d=0;d<l;d++)p+="\n          vec4 xTexelR"+f+"C"+2*d+" = vec4(0.);\n          vec4 wR"+f+"C"+d+" = vec4(0.);\n          vec4 xR"+f+"C"+d+" = vec4(0.);";for(f=0;f<c;f++)for(var v=0;v<h;v++){if(p+="\n          xR = xRCorner + "+f*s+";\n          xC = xCCorner + "+(d=2*v)*u+";\n        ",1===a){if(d<l&&(p+=o%2==1?"\n                xCOffset = xC + 1;\n                if(xR >= 0 && xR < "+e+" && xCOffset >= 0 && xCOffset < "+n+") {\n                  xTexelR"+f+"C"+d+" = getX(batch, xR, xCOffset, d1);\n                } else {\n                  xTexelR"+f+"C"+d+" = vec4(0.);\n                }\n\n                xCOffset = xC + 1 - 2;\n                if(xR >= 0 && xR < "+e+" && xCOffset >= 0 && xCOffset < "+n+") {\n                  vec4 previous = getX(batch, xR, xCOffset, d1);\n                  xR"+f+"C"+d+" = vec4(previous.zw, xTexelR"+f+"C"+d+".xy);\n                } else {\n                  xR"+f+"C"+d+" = vec4(0, 0, xTexelR"+f+"C"+d+".xy);\n                }\n              ":"\n                if(xR >= 0 && xR < "+e+" && xC >= 0 && xC < "+n+") {\n                  xTexelR"+f+"C"+d+" = getX(batch, xR, xC, d1);\n                } else {\n                  xTexelR"+f+"C"+d+" = vec4(0.);\n                }\n\n                xR"+f+"C"+d+" = xTexelR"+f+"C"+d+";\n              ",d+1<l)){var m=o%2==0?y(u):u;u%2==0&&o%2==1||u%2!=0&&o%2!=1?(p+="\n                  xCOffset = xC + "+o%2+" + "+m+";\n\n                  if(xR >= 0 && xR < "+e+" &&\n                    xCOffset >= 0 && xCOffset < "+n+") {\n                    xTexelR"+f+"C"+(d+2)+" = getX(batch, xR, xCOffset, d1);\n                  }\n                ",u>1&&(p+="\n                    xCOffset -= 2;\n                    if(xR >= 0 && xR < "+e+" &&\n                      xCOffset >= 0 && xCOffset < "+n+") {\n                      xTexelR"+f+"C"+d+" = getX(batch, xR, xCOffset, d1);\n                    } else {\n                      xTexelR"+f+"C"+d+" = vec4(0.);\n                    }\n                  "),p+="\n                  xR"+f+"C"+(d+1)+" = vec4(\n                    xTexelR"+f+"C"+d+".zw, xTexelR"+f+"C"+(d+2)+".xy);\n                "):p+="\n                  xCOffset = xC + "+m+";\n\n                  if(xR >= 0 && xR < "+e+" &&\n                    xCOffset >= 0 && xCOffset < "+n+") {\n                    xTexelR"+f+"C"+(d+2)+" = getX(batch, xR, xCOffset, d1);\n                  }\n\n                  xR"+f+"C"+(d+1)+" = xTexelR"+f+"C"+(d+2)+";\n                "}}else d<l&&(p+="\n              if(xR >= 0 && xR < "+e+") {\n            ",o%2==1?(p+="\n                xCOffset = xC + 1 - "+a+";\n                if(xCOffset >= 0 && xCOffset < "+n+") {\n                  xTexelR"+f+"C"+d+" = getX(batch, xR, xCOffset, d1);\n                } else {\n                  xTexelR"+f+"C"+d+" = vec4(0.);\n                }\n\n                if(xC + 1 >= 0 && xC + 1 < "+n+") {\n                  xTexelR"+f+"C"+(d+2)+" = getX(batch, xR, xC + 1, d1);\n                } else {\n                  xTexelR"+f+"C"+(d+2)+" = vec4(0.);\n                }\n\n                xR"+f+"C"+d+" = vec4(\n                  xTexelR"+f+"C"+d+".zw, xTexelR"+f+"C"+(d+2)+".zw);\n              ",d+1<l&&(p+="\n                  vec4 final = vec4(0.);\n                  xCOffset = xC + 1 + "+a+";\n                  if(xCOffset >= 0 && xCOffset < "+n+") {\n                    final = getX(batch, xR, xCOffset, d1);\n                  }\n                  xR"+f+"C"+(d+1)+" = vec4(xTexelR"+f+"C"+(d+2)+".xy, final.xy);\n                ")):(p+="\n                if(xC >= 0 && xC < "+n+") {\n                  xTexelR"+f+"C"+d+" = getX(batch, xR, xC, d1);\n                } else {\n                  xTexelR"+f+"C"+d+" = vec4(0.);\n                }\n\n                xCOffset = xC + "+a+";\n                if(xCOffset >= 0 && xCOffset < "+n+") {\n                  xTexelR"+f+"C"+(d+2)+" = getX(batch, xR, xCOffset, d1);\n                } else {\n                  xTexelR"+f+"C"+(d+2)+" = vec4(0.);\n                }\n\n                xR"+f+"C"+d+" = vec4(\n                  xTexelR"+f+"C"+d+".xy, xTexelR"+f+"C"+(d+2)+".xy);\n              ",d+1<l&&(p+="\n                  xR"+f+"C"+(d+1)+" = vec4(\n                    xTexelR"+f+"C"+d+".zw, xTexelR"+f+"C"+(d+2)+".zw);\n                ")),p+="}");d<l&&(p+="\n            vec4 wTexelR"+f+"C"+d+" = getW("+f+", "+d+", d1, q);\n            wR"+f+"C"+d+" = vec4(wTexelR"+f+"C"+d+".xz, wTexelR"+f+"C"+d+".xz);\n          ",d+1<l&&(p+="\n              vec4 wTexelR"+f+"C"+(d+1)+" = getW("+f+", "+(d+1)+", d1, q);\n              wR"+f+"C"+(d+1)+" =\n                vec4(wTexelR"+f+"C"+(d+1)+".xz, wTexelR"+f+"C"+(d+1)+".xz);"))}for(f=0;f<c;f++)for(d=0;d<l;d++)p+="result += xR"+f+"C"+d+" * wR"+f+"C"+d+";";this.userCode="\n      const ivec2 strides = ivec2("+i+", "+a+");\n      const ivec2 pads = ivec2("+r+", "+o+");\n\n      void main() {\n\n        ivec4 coords = getOutputCoords();\n        int batch = coords.x;\n        ivec2 xRCCorner = coords.yz * strides - pads;\n        int d2 = coords.w;\n        int d1 = d2;\n        int q = 0;\n        int xRCorner = xRCCorner.x;\n        int xCCorner = xRCCorner.y;\n\n        vec4 result = vec4(0.);\n\n        "+p+"\n\n        setOutput(result);\n      }\n    "},$o=function(t,e,n,r,o){this.variableNames=["Image","Boxes","BoxInd"],this.outputShape=[];var i=t[0],a=t[1],s=t[2],u=t[3],c=e[0],l=n[0],h=n[1];this.outputShape=[c,l,h,u];var p="bilinear"===r?1:0,f=[a-1+".0",s-1+".0"],d=f[0],v=f[1],m=l>1?[""+(a-1)/(l-1),"(y2-y1) * height_ratio","y1*"+d+" + float(y)*(height_scale)"]:["0.0","0.0","0.5 * (y1+y2) * "+d],g=m[0],y=m[1],x=m[2],b=h>1?[""+(s-1)/(h-1),"(x2-x1) * width_ratio","x1*"+v+" + float(x)*(width_scale)"]:["0.0","0.0","0.5 * (x1+x2) * "+v],w=b[0],C=b[1],E=b[2];this.userCode="\n      const float height_ratio = float("+g+");\n      const float width_ratio = float("+w+");\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int y = coords[1];\n        int x = coords[2];\n        int d = coords[3];\n\n        // get box vals\n        float y1 = getBoxes(b,0);\n        float x1 = getBoxes(b,1);\n        float y2 = getBoxes(b,2);\n        float x2 = getBoxes(b,3);\n\n        // get image in batch index\n        int bInd = round(getBoxInd(b));\n        if(bInd < 0 || bInd >= "+i+") {\n          return;\n        }\n\n        float height_scale = "+y+";\n        float width_scale = "+C+";\n\n        float in_y = "+x+";\n        if( in_y < 0.0 || in_y > "+d+" ) {\n          setOutput(float("+o+"));\n          return;\n        }\n        float in_x = "+E+";\n        if( in_x < 0.0 || in_x > "+v+" ) {\n          setOutput(float("+o+"));\n          return;\n        }\n\n        vec2 sourceFracIndexCR = vec2(in_x,in_y);\n        if("+p+" == 1) {\n          // Compute the four integer indices.\n          ivec2 sourceFloorCR = ivec2(sourceFracIndexCR);\n          ivec2 sourceCeilCR = ivec2(ceil(sourceFracIndexCR));\n\n          float topLeft = getImage(b, sourceFloorCR.y, sourceFloorCR.x, d);\n          float bottomLeft = getImage(b, sourceCeilCR.y, sourceFloorCR.x, d);\n          float topRight = getImage(b, sourceFloorCR.y, sourceCeilCR.x, d);\n          float bottomRight = getImage(b, sourceCeilCR.y, sourceCeilCR.x, d);\n\n          vec2 fracCR = sourceFracIndexCR - vec2(sourceFloorCR);\n\n          float top = topLeft + (topRight - topLeft) * fracCR.x;\n          float bottom = bottomLeft + (bottomRight - bottomLeft) * fracCR.x;\n          float newValue = top + (bottom - top) * fracCR.y;\n          setOutput(newValue);\n        } else {\n          // Compute the coordinators of nearest neighbor point.\n          ivec2 sourceNearestCR = ivec2(floor(\n            sourceFracIndexCR + vec2(0.5,0.5)));\n          float newValue = getImage(b, sourceNearestCR.y, sourceNearestCR.x, d);\n          setOutput(newValue);\n        }\n      }\n    "},Ko=function(t,e,n){this.variableNames=["x"],this.outputShape=t;var r=t.length,o=t[t.length-1],i=n?"<":">";this.userCode="\n      int getIndex(int i) {\n        "+(n?"return "+o+" -i - 1;":"return i;")+"\n      }\n\n      void main() {\n        "+xo(r)+" coords = getOutputCoords();\n        int end = "+Xo(r,"coords")+";\n        float val = 0.0;\n        for (int i = "+o+" - 1; i >= 0; i -= 1) {\n          int idx = getIndex(i);\n          if (idx "+i+" end) {\n            continue;\n          }\n          if (idx == end && "+e+") {\n            continue;\n          }\n          "+Xo(r,"coords")+" = idx;\n          val += getX("+function(t,e){if(1===r)return""+e;if(2===r)return e+".x, "+e+".y";if(3===r)return e+".x, "+e+".y, "+e+".z";if(4===r)return e+".x, "+e+".y, "+e+".z, "+e+".w";throw Error("Cumulative sum for rank "+r+" is not yet supported")}(0,"coords")+");\n        }\n        setOutput(val);\n      }\n    "};function Xo(t,e){if(1===t)return""+e;if(2===t)return e+".y";if(3===t)return e+".z";if(4===t)return e+".w";throw Error("Cumulative sum for rank "+t+" is not yet supported")}var Yo,Qo,Jo=function(t,e){this.variableNames=["A"];var n=so();this.outputShape=t,this.userCode="\n      ivec3 outCoordsFromFlatIndex(int index) {\n        "+uo(["r","c","d"],t)+"\n        return ivec3(r, c, d);\n      }\n\n      void main() {\n        ivec2 resTexRC = ivec2(resultUV.yx *\n          vec2("+e[0]+", "+e[1]+"));\n        int index = 4 * (resTexRC.x * "+e[1]+" + resTexRC.y);\n\n        vec4 result = vec4(0.);\n\n        for (int i=0; i<4; i++) {\n          int flatIndex = index + i;\n          ivec3 rc = outCoordsFromFlatIndex(flatIndex);\n          result[i] = getA(rc.x, rc.y, rc.z);\n        }\n\n        "+n.output+" = result;\n      }\n    "},Zo=function(t,e){this.variableNames=["A"],this.usesPackedTextures=!0;var n=so();this.outputShape=t,this.userCode="\n      ivec3 outCoordsFromFlatIndex(int index) {\n        "+uo(["r","c","d"],t)+"\n        return ivec3(r, c, d);\n      }\n\n      void main() {\n        ivec2 resTexRC = ivec2(resultUV.yx *\n          vec2("+e[0]+", "+e[1]+"));\n        int index = 4 * (resTexRC.x * "+e[1]+" + resTexRC.y);\n\n        vec4 result = vec4(0.);\n\n        for (int i=0; i<4; i++) {\n          int flatIndex = index + i;\n          ivec3 rc = outCoordsFromFlatIndex(flatIndex);\n          result[i] = getChannel(getA(rc.x, rc.y, rc.z), vec2(rc.y, rc.z));\n        }\n\n        "+n.output+" = result;\n      }\n    "},ti=function(){function t(t,e,n){this.variableNames=["x"],this.outputShape=[],this.outputShape=t,this.blockSize=e,this.dataFormat=n,this.userCode="\n    void main() {\n      ivec4 coords = getOutputCoords();\n      int b = coords[0];\n      int h = "+this.getHeightCoordString()+";\n      int w = "+this.getWidthCoordString()+";\n      int d = "+this.getDepthCoordString()+";\n\n      int in_h = h / "+e+";\n      int offset_h = imod(h, "+e+");\n      int in_w = w / "+e+";\n      int offset_w = imod(w, "+e+");\n      int offset_d = (offset_h * "+e+" + offset_w) *\n        "+this.getOutputDepthSize()+";\n      int in_d = d + offset_d;\n\n      float result = "+this.getInputSamplingString()+";\n      setOutput(result);\n    }\n  "}return t.prototype.getHeightCoordString=function(){return"NHWC"===this.dataFormat?"coords[1]":"coords[2]"},t.prototype.getWidthCoordString=function(){return"NHWC"===this.dataFormat?"coords[2]":"coords[3]"},t.prototype.getDepthCoordString=function(){return"NHWC"===this.dataFormat?"coords[3]":"coords[1]"},t.prototype.getOutputDepthSize=function(){return"NHWC"===this.dataFormat?this.outputShape[3]:this.outputShape[1]},t.prototype.getInputSamplingString=function(){return"NHWC"===this.dataFormat?"getX(b, in_h, in_w, in_d)":"getX(b, in_d, in_h, in_w)"},t}(),ei=function(t){this.variableNames=["A"];var e=so();this.outputShape=t,this.userCode="\n      "+lo+"\n\n      void main() {\n        float x = getAAtOutCoords();\n        "+e.output+" = encode_float(x);\n      }\n    "},ni=function(t){this.variableNames=["A"],this.usesPackedTextures=!0;var e=so();this.outputShape=t,this.userCode="\n      "+lo+"\n\n      void main() {\n        ivec3 coords = getOutputCoords();\n        float x = getChannel(getAAtOutCoords(), vec2(coords.y, coords.z));\n        "+e.output+" = encode_float(x);\n      }\n    "},ri=function(t,e,n){void 0===n&&(n=!1),this.variableNames=["A"];var r=so(),o=e[0],i=e[1];this.outputShape=t;var a="result";n&&(a="floor(result * 255. + 0.5)"),this.userCode="\n      "+co(t)+"\n\n      void main() {\n        ivec3 coords = getOutputCoords();\n\n        int flatIndex = getFlatIndex(coords);\n        int offset = imod(flatIndex, 4);\n\n        flatIndex /= 4;\n        int r = flatIndex / "+i+";\n        int c = imod(flatIndex, "+i+");\n        vec2 uv = (vec2(c, r) + halfCR) / vec2("+i+".0, "+o+".0);\n        vec4 values = "+r.texture2D+"(A, uv);\n\n        float result;\n\n        if(offset == 0) {\n          result = values[0];\n        } else if(offset == 1) {\n          result = values[1];\n        } else if(offset == 2) {\n          result = values[2];\n        } else {\n          result = values[3];\n        }\n\n        "+r.output+" = vec4("+a+", 0., 0., 0.);\n      }\n    "},oi=function(t,e,n){void 0===n&&(n=!1),this.variableNames=["A"];var r=so(),o=e[0],i=e[1];this.outputShape=t;var a="",s="result";n&&(s="floor(result * 255. + 0.5)");for(var u=0;u<=1;u++)for(var c=0;c<=1;c++){var l=2*u+c;a+="\n          localCoords = coords;\n          if(localCoords[2] + "+c+" < "+t[2]+") {\n            localCoords[2] += "+c+";\n            if(localCoords[1] + "+u+" < "+t[1]+") {\n              localCoords[1] += "+u+";\n\n              flatIndex = getFlatIndex(localCoords);\n              offset = imod(flatIndex, 4);\n    \n              flatIndex /= 4;\n              r = flatIndex / "+i+";\n              c = imod(flatIndex, "+i+");\n              uv = (vec2(c, r) + halfCR) / vec2("+i+".0, "+o+".0);\n              values = "+r.texture2D+"(A, uv);\n\n              if(offset == 0) {\n                result["+l+"] = values[0];\n              } else if(offset == 1) {\n                result["+l+"] = values[1];\n              } else if(offset == 2) {\n                result["+l+"] = values[2];\n              } else {\n                result["+l+"] = values[3];\n              }\n            }\n          }\n        "}this.userCode="\n      "+co(t)+"\n\n      void main() {\n        ivec3 coords = getOutputCoords();\n\n        vec4 result = vec4(0.);\n        int flatIndex, r, c, offset;\n        ivec3 localCoords;\n        vec2 uv;\n        vec4 values;\n        \n        "+a+"\n\n        "+r.output+" = "+s+";\n      }\n    "},ii=function(t,e,n){this.variableNames=["real","imag"];var r=e[1];this.outputShape=e;var o=n?"2.0 * "+Math.PI:"-2.0 * "+Math.PI,i=n?r+".0":"1.0";this.userCode="\n      const float exponentMultiplier = "+o+";\n\n      float unaryOpComplex(float real, float expR, float imag, float expI) {\n        "+t+"\n      }\n\n      float mulMatDFT(int batch, int index) {\n        float indexRatio = float(index) / float("+r+");\n        float exponentMultiplierTimesIndexRatio =\n            exponentMultiplier * indexRatio;\n\n        float result = 0.0;\n\n        for (int i = 0; i < "+r+"; i++) {\n          // x = (-2|2 * PI / N) * index * i;\n          float x = exponentMultiplierTimesIndexRatio * float(i);\n          float expR = cos(x);\n          float expI = sin(x);\n          float real = getReal(batch, i);\n          float imag = getImag(batch, i);\n\n          result +=\n              unaryOpComplex(real, expR, imag, expI) / "+i+";\n        }\n\n        return result;\n      }\n\n      void main() {\n        ivec2 coords = getOutputCoords();\n        setOutput(mulMatDFT(coords[0], coords[1]));\n      }\n    "},ai=function(){function t(t,e){this.outputShape=[],this.variableNames=["x"],this.outputShape=t,this.userCode="\n      uniform float value;\n      void main() {\n        // Input can be obtained from uniform value.\n        setOutput(value);\n      }\n    "}return t.prototype.getCustomSetupFunc=function(t){var e=this;return function(n,r){null==e.valueLoc&&(e.valueLoc=n.getUniformLocationNoThrow(r,"value")),n.gl.uniform1f(e.valueLoc,t)}},t}(),si=function(t){this.variableNames=["A"];var e=so(),n=t[0],r=t[1];this.outputShape=t,this.userCode="\n      void main() {\n        ivec3 coords = getOutputCoords();\n        int texR = coords[0];\n        int texC = coords[1];\n        int depth = coords[2];\n        vec2 uv = (vec2(texC, texR) + halfCR) / vec2("+r+".0, "+n+".0);\n\n        vec4 values = "+e.texture2D+"(A, uv);\n        float value;\n        if (depth == 0) {\n          value = values.r;\n        } else if (depth == 1) {\n          value = values.g;\n        } else if (depth == 2) {\n          value = values.b;\n        } else if (depth == 3) {\n          value = values.a;\n        }\n\n        setOutput(floor(value * 255.0 + 0.5));\n      }\n    "},ui=function(t){this.variableNames=["A"];var e=so(),n=t[0],r=t[1];this.outputShape=t,this.userCode="\n      void main() {\n        ivec3 coords = getOutputCoords();\n        int texR = coords[0];\n        int texC = coords[1];\n        int depth = coords[2];\n\n        vec4 result = vec4(0.);\n\n        for(int row=0; row<=1; row++) {\n          for(int col=0; col<=1; col++) {\n            texC = coords[1] + row;\n            depth = coords[2] + col;\n\n            vec2 uv = (vec2(texC, texR) + halfCR) / vec2("+r+".0, "+n+".0);\n            vec4 values = "+e.texture2D+"(A, uv);\n            float value;\n            if (depth == 0) {\n              value = values.r;\n            } else if (depth == 1) {\n              value = values.g;\n            } else if (depth == 2) {\n              value = values.b;\n            } else if (depth == 3) {\n              value = values.a;\n            }\n\n            result[row * 2 + col] = floor(value * 255.0 + 0.5);\n          }\n        }\n\n        "+e.output+" = result;\n      }\n    "},ci=function(t,e,n){this.variableNames=["A","indices"];var r=t.slice();r[n]=e,this.outputShape=r,this.rank=r.length;var o=xo(this.rank),i=function(t,e){var n=t.length;if(n>4)throw Error("Gather for rank "+n+" is not yet supported");if(1===n)return"int(getIndices(resRC))";for(var r=["resRC.x","resRC.y","resRC.z","resRC.w"],o=[],i=0;i<t.length;i++)i===e?o.push("int(getIndices("+r[i]+"))"):o.push(""+r[i]);return o.join()}(t,n);this.userCode="\n      void main() {\n        "+o+" resRC = getOutputCoords();\n        setOutput(getA("+i+"));\n      }\n    "},li=function(t,e,n){this.sliceDim=t,this.strides=e,this.variableNames=["x","indices"],this.outputShape=n;var r=xo(e.length),o=xo(n.length),i=this.sliceDim>1?"strides[j]":"strides";this.userCode="\n        "+r+" strides = "+r+"("+this.strides+");\n         void main() {\n          "+o+" coords = getOutputCoords();\n          int flattenIndex = 0;\n          for (int j = 0; j < "+this.sliceDim+"; j++) {\n            int index = round(getIndices(coords[0], j));\n            flattenIndex += index * "+i+";\n          }\n          setOutput(getX(flattenIndex, coords[1]));\n        }\n      "};function hi(t,e){return[e,t]}function pi(t){var e=_(t);return N(Math.ceil(e/4))}function fi(t,e){return[Math.max(1,Math.ceil(e/2)),Math.max(1,Math.ceil(t/2))]}function di(t,e){var n=so();return qt(t,e,n.version+"\n    precision highp float;\n    "+n.attribute+" vec3 clipSpacePos;\n    "+n.attribute+" vec2 uv;\n    "+n.varyingVs+" vec2 resultUV;\n\n    void main() {\n      gl_Position = vec4(clipSpacePos, 1);\n      resultUV = uv;\n    }")}function vi(t,e){return te(t,e,new Float32Array([-1,1,0,0,1,-1,-1,0,0,0,1,1,0,1,1,1,-1,0,1,0]))}function mi(t,e){return ee(t,e,new Uint16Array([0,1,2,2,1,3]))}function gi(t,e){var n,r,o,i,a,s,u,c,l=t;return 2===f.getNumber("WEBGL_VERSION")?(n=l.R32F,r=l.R16F,o=l.RGBA16F,i=l.RGBA32F,a=l.RED,s=4,u=1,c=l.HALF_FLOAT):(n=t.RGBA,r=t.RGBA,o=t.RGBA,i=l.RGBA,a=t.RGBA,s=4,u=4,c=null!=e?e.HALF_FLOAT_OES:null),{internalFormatFloat:n,internalFormatHalfFloat:r,internalFormatPackedHalfFloat:o,internalFormatPackedFloat:i,textureFormatFloat:a,downloadTextureFormat:t.RGBA,downloadUnpackNumChannels:s,defaultNumChannels:u,textureTypeHalfFloat:c}}function yi(t,e,n,r,o,i,a){re(n,r);var s=ne(t,e),u=t.TEXTURE_2D;return zt(t,e,function(){return t.bindTexture(u,s)}),zt(t,e,function(){return t.texParameteri(u,t.TEXTURE_WRAP_S,t.CLAMP_TO_EDGE)}),zt(t,e,function(){return t.texParameteri(u,t.TEXTURE_WRAP_T,t.CLAMP_TO_EDGE)}),zt(t,e,function(){return t.texParameteri(u,t.TEXTURE_MIN_FILTER,t.NEAREST)}),zt(t,e,function(){return t.texParameteri(u,t.TEXTURE_MAG_FILTER,t.NEAREST)}),zt(t,e,function(){return t.texImage2D(u,0,o,n,r,0,i,a,null)}),zt(t,e,function(){return t.bindTexture(t.TEXTURE_2D,null)}),s}function xi(t,e,n,r,o){var i=hi(n,r);return yi(t,e,i[0],i[1],o.internalFormatFloat,o.textureFormatFloat,t.FLOAT)}function bi(t,e,n,r,o){var i=hi(n,r);return yi(t,e,i[0],i[1],o.internalFormatHalfFloat,o.textureFormatFloat,o.textureTypeHalfFloat)}function wi(t,e,n,r,o){var i=hi(n,r);return yi(t,e,i[0],i[1],t.RGBA,t.RGBA,t.UNSIGNED_BYTE)}function Ci(t,e,n,r,o){var i=fi(n,r);return yi(t,e,i[0],i[1],o.internalFormatPackedFloat,t.RGBA,t.FLOAT)}function Ei(t,e,n,r,o){var i=fi(n,r);return yi(t,e,i[0],i[1],o.internalFormatPackedHalfFloat,t.RGBA,o.textureTypeHalfFloat)}function _i(t,e,n,r){return zt(t,e,function(){return t.bindBuffer(t.ARRAY_BUFFER,r)}),ie(t,e,n,"clipSpacePos",r,3,20,0)&&ie(t,e,n,"uv",r,2,20,12)}function Ii(t,e,n,r,o,i,a){var s,u,c;zt(t,e,function(){return t.bindTexture(t.TEXTURE_2D,n)}),i instanceof 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Ni(t,e,n){var r=t,o=new Float32Array(n);return r.bindBuffer(r.PIXEL_PACK_BUFFER,e),r.getBufferSubData(r.PIXEL_PACK_BUFFER,0,o),r.bindBuffer(r.PIXEL_PACK_BUFFER,null),o}function ki(t,e,n,r,o){var i=hi(n,r),a=i[0],s=i[1],u=new Uint8Array(n*r*4);return zt(t,e,function(){return t.readPixels(0,0,a,s,o.downloadTextureFormat,t.UNSIGNED_BYTE,u)}),new Float32Array(u.buffer)}function Ai(t,e,n,r,o,i,a,s){var u=t,c=new Float32Array(function(t,e){var n=fi(i,a);return n[0]*n[1]*4}());return u.bindBuffer(u.PIXEL_PACK_BUFFER,e),u.getBufferSubData(u.PIXEL_PACK_BUFFER,0,c),u.bindBuffer(u.PIXEL_PACK_BUFFER,null),c}function Ti(t,e,n,r){var o=new Float32Array(n*r*4);return zt(t,e,function(){return t.readPixels(0,0,r,n,t.RGBA,t.FLOAT,o)}),o}!function(t){t[t.RENDER=0]="RENDER",t[t.UPLOAD=1]="UPLOAD",t[t.PIXELS=2]="PIXELS",t[t.DOWNLOAD=3]="DOWNLOAD"}(Yo||(Yo={})),function(t){t[t.UNPACKED_FLOAT16=0]="UNPACKED_FLOAT16",t[t.UNPACKED_FLOAT32=1]="UNPACKED_FLOAT32",t[t.PACKED_4X1_UNSIGNED_BYTE=2]="PACKED_4X1_UNSIGNED_BYTE",t[t.PACKED_2X2_FLOAT32=3]="PACKED_2X2_FLOAT32",t[t.PACKED_2X2_FLOAT16=4]="PACKED_2X2_FLOAT16"}(Qo||(Qo={}));var Di=Object.freeze({createVertexShader:di,createVertexBuffer:vi,createIndexBuffer:mi,getTextureConfig:gi,createFloat32MatrixTexture:xi,createFloat16MatrixTexture:bi,createUnsignedBytesMatrixTexture:wi,createPackedMatrixTexture:Ci,createFloat16PackedMatrixTexture:Ei,bindVertexProgramAttributeStreams:_i,uploadDenseMatrixToTexture:Ii,uploadPixelDataToTexture:Si,createBufferFromOutputTexture:Ri,downloadFloat32MatrixFromBuffer:Ni,downloadByteEncodedFloatMatrixFromOutputTexture:ki,downloadPackedMatrixFromBuffer:Ai,downloadMatrixFromPackedOutputTexture:Ti}),Fi=function(){function t(t){this.outputTexture=null,this.program=null,this.disposed=!1,this.vertexAttrsAreBound=!1,this.itemsToPoll=[];var 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This is probably a resource leak, delete the program with GPGPUContext.deleteProgram before disposing."),null!=this.outputTexture&&console.warn("Disposing a GPGPUContext that still has a bound output matrix texture.  This is probably a resource leak, delete the output matrix texture with GPGPUContext.deleteMatrixTexture before disposing.");var e=this.gl;zt(e,this.debug,function(){return e.finish()}),zt(e,this.debug,function(){return e.bindFramebuffer(e.FRAMEBUFFER,null)}),zt(e,this.debug,function(){return e.deleteFramebuffer(t.framebuffer)}),zt(e,this.debug,function(){return e.bindBuffer(e.ARRAY_BUFFER,null)}),zt(e,this.debug,function(){return e.bindBuffer(e.ELEMENT_ARRAY_BUFFER,null)}),zt(e,this.debug,function(){return e.deleteBuffer(t.indexBuffer)}),this.disposed=!0}},t.prototype.createFloat32MatrixTexture=function(t,e){return this.throwIfDisposed(),xi(this.gl,this.debug,t,e,this.textureConfig)},t.prototype.createFloat16MatrixTexture=function(t,e){return this.throwIfDisposed(),bi(this.gl,this.debug,t,e,this.textureConfig)},t.prototype.createUnsignedBytesMatrixTexture=function(t,e){return this.throwIfDisposed(),wi(this.gl,this.debug,t,e,this.textureConfig)},t.prototype.uploadPixelDataToTexture=function(t,e){this.throwIfDisposed(),Si(this.gl,this.debug,t,e)},t.prototype.uploadDenseMatrixToTexture=function(t,e,n,r){this.throwIfDisposed(),Ii(this.gl,this.debug,t,e,n,r,this.textureConfig)},t.prototype.createFloat16PackedMatrixTexture=function(t,e){return this.throwIfDisposed(),Ei(this.gl,this.debug,t,e,this.textureConfig)},t.prototype.createPackedMatrixTexture=function(t,e){return this.throwIfDisposed(),Ci(this.gl,this.debug,t,e,this.textureConfig)},t.prototype.deleteMatrixTexture=function(t){var e=this;this.throwIfDisposed(),this.outputTexture===t&&(he(this.gl,this.debug,this.framebuffer),this.outputTexture=null),zt(this.gl,this.debug,function(){return e.gl.deleteTexture(t)})},t.prototype.downloadByteEncodedFloatMatrixFromOutputTexture=function(t,e,n){var r=this;return this.downloadMatrixDriver(t,function(){return ki(r.gl,r.debug,e,n,r.textureConfig)})},t.prototype.downloadPackedMatrixFromBuffer=function(t,e,n,r,o,i){return Ai(this.gl,t,0,0,0,o,i,this.textureConfig)},t.prototype.downloadFloat32MatrixFromBuffer=function(t,e){return Ni(this.gl,t,e)},t.prototype.createBufferFromTexture=function(t,e,n){this.bindTextureToFrameBuffer(t);var r=Ri(this.gl,this.debug,e,n,this.textureConfig);return this.unbindTextureToFrameBuffer(),r},t.prototype.createAndWaitForFence=function(){var t=this.createFence(this.gl);return this.pollFence(t)},t.prototype.createFence=function(t){var e,n,r=this;if(f.getBool("WEBGL_FENCE_API_ENABLED")){var o=t,i=o.fenceSync(o.SYNC_GPU_COMMANDS_COMPLETE,0);t.flush(),n=function(){var t=o.clientWaitSync(i,0,0);return t===o.ALREADY_SIGNALED||t===o.CONDITION_SATISFIED},e=i}else f.getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")>0?(e=this.beginQuery(),this.endQuery(),n=function(){return r.isQueryAvailable(e,f.getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))}):n=function(){return!0};return{query:e,isFencePassed:n}},t.prototype.downloadMatrixFromPackedTexture=function(t,e,n){var r=this;return this.downloadMatrixDriver(t,function(){return Ti(r.gl,r.debug,e,n)})},t.prototype.createProgram=function(t){this.throwIfDisposed();var e=this.gl,n=$t(e,this.debug,t),r=di(e,this.debug),o=Qt(e,this.debug);return zt(e,this.debug,function(){return e.attachShader(o,r)}),zt(e,this.debug,function(){return e.attachShader(o,n)}),Jt(e,this.debug,o),this.debug&&Zt(e,this.debug,o),this.vertexAttrsAreBound||(this.setProgram(o),this.vertexAttrsAreBound=_i(e,this.debug,this.program,this.vertexBuffer)),o},t.prototype.deleteProgram=function(t){var e=this;this.throwIfDisposed(),t===this.program&&(this.program=null),null!=t&&zt(this.gl,this.debug,function(){return e.gl.deleteProgram(t)})},t.prototype.setProgram=function(t){var e=this;this.throwIfDisposed(),this.program=t,null!=this.program&&this.debug&&Zt(this.gl,this.debug,this.program),zt(this.gl,this.debug,function(){return e.gl.useProgram(t)})},t.prototype.getUniformLocation=function(t,e,n){return void 0===n&&(n=!0),this.throwIfDisposed(),n?se(this.gl,this.debug,t,e):ue(this.gl,t,e)},t.prototype.getAttributeLocation=function(t,e){var n=this;return this.throwIfDisposed(),zt(this.gl,this.debug,function(){return n.gl.getAttribLocation(t,e)})},t.prototype.getUniformLocationNoThrow=function(t,e){return this.throwIfDisposed(),this.gl.getUniformLocation(t,e)},t.prototype.setInputMatrixTexture=function(t,e,n){this.throwIfDisposed(),this.throwIfNoProgram(),ce(this.gl,this.debug,this.program,t,e,n)},t.prototype.setOutputMatrixTexture=function(t,e,n){this.setOutputMatrixTextureDriver(t,n,e)},t.prototype.setOutputPackedMatrixTexture=function(t,e,n){this.throwIfDisposed();var r=fi(e,n),o=r[0],i=r[1];this.setOutputMatrixTextureDriver(t,o,i)},t.prototype.setOutputMatrixWriteRegion=function(t,e,n,r){this.setOutputMatrixWriteRegionDriver(n,t,r,e)},t.prototype.setOutputPackedMatrixWriteRegion=function(t,e,n,r){throw new Error("setOutputPackedMatrixWriteRegion not implemented.")},t.prototype.debugValidate=function(){null!=this.program&&Zt(this.gl,this.debug,this.program),pe(this.gl)},t.prototype.executeProgram=function(){this.throwIfDisposed(),this.throwIfNoProgram();var t=this.gl;this.debug&&this.debugValidate(),zt(t,this.debug,function(){return t.drawElements(t.TRIANGLES,6,t.UNSIGNED_SHORT,0)})},t.prototype.blockUntilAllProgramsCompleted=function(){var t=this;this.throwIfDisposed(),zt(this.gl,this.debug,function(){return t.gl.finish()})},t.prototype.getQueryTimerExtension=function(){return null==this.disjointQueryTimerExtension&&(this.disjointQueryTimerExtension=Ht(this.gl,this.debug,2===f.getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")?"EXT_disjoint_timer_query_webgl2":"EXT_disjoint_timer_query")),this.disjointQueryTimerExtension},t.prototype.getQueryTimerExtensionWebGL2=function(){return this.getQueryTimerExtension()},t.prototype.getQueryTimerExtensionWebGL1=function(){return this.getQueryTimerExtension()},t.prototype.beginQuery=function(){if(2===f.getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")){var t=this.gl,e=this.getQueryTimerExtensionWebGL2(),n=t.createQuery();return t.beginQuery(e.TIME_ELAPSED_EXT,n),n}var r=this.getQueryTimerExtensionWebGL1(),o=r.createQueryEXT();return r.beginQueryEXT(r.TIME_ELAPSED_EXT,o),o},t.prototype.endQuery=function(){if(2!==f.getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")){var t=this.getQueryTimerExtensionWebGL1();t.endQueryEXT(t.TIME_ELAPSED_EXT)}else{var e=this.gl,n=this.getQueryTimerExtensionWebGL2();e.endQuery(n.TIME_ELAPSED_EXT)}},t.prototype.waitForQueryAndGetTime=function(t){return c(this,void 0,void 0,function(){var e=this;return l(this,function(n){switch(n.label){case 0:return[4,A(function(){return e.disposed||e.isQueryAvailable(t,f.getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))})];case 1:return n.sent(),[2,this.getQueryTime(t,f.getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))]}})})},t.prototype.getQueryTime=function(t,e){if(0===e)return null;if(2===e){var n=this.gl;return n.getQueryParameter(t,n.QUERY_RESULT)/1e6}var r=this.getQueryTimerExtensionWebGL1();return r.getQueryObjectEXT(t,r.QUERY_RESULT_EXT)/1e6},t.prototype.isQueryAvailable=function(t,e){if(0===e)return!0;if(2===e){var n=this.gl,r=this.getQueryTimerExtensionWebGL2(),o=n.getQueryParameter(t,n.QUERY_RESULT_AVAILABLE);return null==this.disjoint&&(this.disjoint=this.gl.getParameter(r.GPU_DISJOINT_EXT)),o&&!this.disjoint}return o=(r=this.getQueryTimerExtensionWebGL1()).getQueryObjectEXT(t,r.QUERY_RESULT_AVAILABLE_EXT),null==this.disjoint&&(this.disjoint=this.gl.getParameter(r.GPU_DISJOINT_EXT)),o&&!this.disjoint},t.prototype.pollFence=function(t){var e=this;return new Promise(function(n){e.addItemToPoll(function(){return t.isFencePassed()},function(){return n()})})},t.prototype.pollItems=function(){for(var t=function(t){for(var e=0;e<t.length;++e){if(!t[e]())break}return e-1}(this.itemsToPoll.map(function(t){return t.isDoneFn})),e=0;e<=t;++e)(0,this.itemsToPoll[e].resolveFn)();this.itemsToPoll=this.itemsToPoll.slice(t+1)},t.prototype.addItemToPoll=function(t,e){var n=this;this.itemsToPoll.push({isDoneFn:t,resolveFn:e}),this.itemsToPoll.length>1||A(function(){return n.pollItems(),0===n.itemsToPoll.length})},t.prototype.bindTextureToFrameBuffer=function(t){this.throwIfDisposed(),le(this.gl,this.debug,t,this.framebuffer),this.debug&&pe(this.gl)},t.prototype.unbindTextureToFrameBuffer=function(){null!=this.outputTexture?(le(this.gl,this.debug,this.outputTexture,this.framebuffer),this.debug&&pe(this.gl)):he(this.gl,this.debug,this.framebuffer)},t.prototype.downloadMatrixDriver=function(t,e){this.bindTextureToFrameBuffer(t);var n=e();return this.unbindTextureToFrameBuffer(),n},t.prototype.setOutputMatrixTextureDriver=function(t,e,n){this.throwIfDisposed();var r=this.gl;le(r,this.debug,t,this.framebuffer),this.debug&&pe(r),this.outputTexture=t,zt(r,this.debug,function(){return r.viewport(0,0,e,n)}),zt(r,this.debug,function(){return r.scissor(0,0,e,n)})},t.prototype.setOutputMatrixWriteRegionDriver=function(t,e,n,r){var o=this;this.throwIfDisposed(),zt(this.gl,this.debug,function(){return o.gl.scissor(t,e,n,r)})},t.prototype.throwIfDisposed=function(){if(this.disposed)throw new Error("Attempted to use disposed GPGPUContext.")},t.prototype.throwIfNoProgram=function(){if(null==this.program)throw new Error("No GPU program is currently set.")},t}();function Mi(t,e){if(t.length!==e.length)throw Error("Binary was compiled with "+t.length+" inputs, but was executed with "+e.length+" inputs");t.forEach(function(t,n){var r=t.logicalShape,o=e[n],i=o.shape;if(!I(r,i))throw Error("Binary was compiled with different shapes than the current args. Shapes "+r+" and "+i+" must match");if(!t.isUniform||!o.isUniform){var a=t.texShape,s=o.isUniform?null:o.texData.texShape;if(!I(a,s))throw Error("Binary was compiled with different texture shapes than the current args. Shape "+a+" and "+s+" must match")}})}var Oi=function(t,e,n){this.variableNames=["A"],this.usesPackedTextures=!0,this.outputShape=t;var r=n.filterWidth,o=n.inChannels,i=n.strideWidth,a=n.strideHeight,s=n.padInfo,u=n.outWidth,c=n.dilationWidth,l=n.dilationHeight,h=s.left,p=s.top,f=o*r,d=so();this.userCode="\n      void main() {\n        ivec2 rc = getOutputCoords();\n\n        vec4 result = vec4(0);\n\n        for(int row=0; row<=1; row++) {\n          for(int col=0; col<=1; col++) {\n            int blockIndex = rc.y + col;\n            int pos = rc.x + row;\n\n            if(blockIndex >= "+t[1]+" || pos >= "+t[0]+") continue;\n\n            int offsetY = int(blockIndex / ("+u+")) * "+a+" - "+p+";\n            int d0 = offsetY + "+l+" * (pos / "+f+");\n\n            if(d0 >= "+e[0]+" || d0 < 0) continue;\n\n            int offsetX = int(mod(float(blockIndex), "+u+".) * "+i+". - "+h+".);\n            int d1 = offsetX + "+c+" * (int(mod(float(pos), "+f+".) / "+o+".));\n\n            if(d1 >= "+e[1]+" || d1 < 0) continue;\n\n            vec2 innerDims = vec2(d1, int(mod(float(pos), "+o+".)));\n            result[row * 2 + col] = getChannel(getA(d0, int(innerDims.x),\n                                              int(innerDims.y)), innerDims);\n          }\n        }\n\n        "+d.output+" = result;\n      }\n    "},Pi=function(t,e,n,r,o){this.variableNames=["x"],this.outputShape=[];var i,a=e,s=t[3]-1;this.outputShape=t;var u="float("+n+") + float("+r+") * sum";i=.5===o?"inversesqrt("+u+")":1===o?"1.0/("+u+")":"exp(log("+u+") * float(-"+o+"));",this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int r = coords[1];\n        int c = coords[2];\n        int d = coords[3];\n        float x = getX(b, r, c, d);\n        float sum = 0.0;\n        for (int j = -"+a+"; j <= "+a+"; j++) {\n          int idx = d + j;\n          if (idx >= 0 && idx <=  "+s+") {\n            float z = getX(b, r, c, idx);\n            sum += z * z;\n          }\n        }\n        float val = x * "+i+";\n        setOutput(val);\n      }\n    "},Bi=function(t,e,n,r,o){this.variableNames=["inputImage","outputImage","dy"],this.outputShape=[],this.outputShape=t,this.depth=t[3],this.depthRadius=e,this.bias=n,this.alpha=r,this.beta=o,this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int r = coords[1];\n        int c = coords[2];\n\n        float result = 0.0;\n        for (int d = 0; d < "+this.depth+"; ++d) {\n          int depthBegin = int(max(0.0, float(d - "+e+")));\n          int depthEnd = int(min(float("+this.depth+"),\n              float(d + "+e+" + 1)));\n\n          const int MIN_DEPTH_BEGIN = 0;\n          const int MAX_DEPTH_END = "+this.depth+";\n\n          float norm = 0.0;\n          for (int k = MIN_DEPTH_BEGIN; k < MAX_DEPTH_END; ++k) {\n            if (k < depthBegin){\n              continue;\n            }\n            else if (k >= depthBegin && k < depthEnd) {\n              norm += getInputImage(b, r, c, k) * getInputImage(b, r, c, k);\n            }\n            else {\n              break;\n            }\n          }\n\n          norm = float("+r+") * norm + float("+n+");\n\n          for(int k = MIN_DEPTH_BEGIN; k < MAX_DEPTH_END; ++k){\n            if (k < depthBegin){\n              continue;\n            }\n            else if (k >= depthBegin && k < depthEnd){\n              float dyi = -2.0 * float("+r+")\n                * float("+o+")\n                * getInputImage(b ,r ,c, k) * getOutputImage(b, r, c, d)\n                / norm;\n              if (k == d) {\n                dyi += pow(norm, -1.0 * "+o+");\n              }\n              if (k == coords[3]) {\n                dyi *= getDy(b, r, c, d);\n                result += dyi;\n              }\n            }\n            else {\n              break;\n            }\n          }\n      }\n      setOutput(result);\n      }\n    "},Li=function(t,e,n,r,o){this.variableNames=["x"],this.outputShape=[],this.usesPackedTextures=!0;var i,a=e,s=t[3]-1;this.outputShape=t;var u="float("+n+") + float("+r+") * sum";i=.5===o?"inversesqrt("+u+")":1===o?"1.0/("+u+")":"exp(log("+u+") * float(-"+o+"));",this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords.x;\n        int r = coords.y;\n        int c = coords.z;\n        int d = coords.w;\n\n        bool hasNextCol = d < "+this.outputShape[3]+";\n        bool hasNextRow = c < "+this.outputShape[2]+";\n\n        vec4 sum = vec4(0.);\n        vec4 xFragAtOutputCoords = getX(b, r, c, d);\n\n        vec4 xAtOutputCoords = vec4(\n          getChannel(xFragAtOutputCoords, vec2(c, d)),\n          hasNextCol ?\n            getChannel(xFragAtOutputCoords, vec2(c, d + 1)) : 0.0,\n          hasNextRow ?\n            getChannel(xFragAtOutputCoords , vec2(c + 1, d)) : 0.0,\n          (hasNextRow && hasNextCol) ?\n            getChannel(xFragAtOutputCoords, vec2(c + 1, d + 1)) : 0.0\n        );\n\n        int firstChannel = d - "+a+";\n        vec2 cache = vec2(0.);\n        if(firstChannel >= 0){\n          vec4 firstChannelFrag = getX(b, r, c, firstChannel);\n          cache.x = getChannel(firstChannelFrag, vec2(c, firstChannel));\n            if(hasNextRow){\n              cache.y = getChannel(firstChannelFrag, vec2(c + 1, firstChannel));\n            }\n        }\n\n        ivec2 depth = ivec2(d, d + 1);\n        for (int j = - "+a+"; j <= "+a+"; j++) {\n          ivec2 idx = depth + j;\n          bvec2 aboveLowerBound = greaterThanEqual(idx, ivec2(0));\n          bvec2 belowUpperBound = lessThanEqual(idx, ivec2("+s+"));\n\n          bool depthInRange = aboveLowerBound.x && belowUpperBound.x;\n          bool depthPlusOneInRange = aboveLowerBound.y && belowUpperBound.y;\n\n          if(depthInRange || depthPlusOneInRange){\n            vec4 z = vec4(0.);\n            vec4 xFragAtCurrentDepth;\n            z.xz = cache.xy;\n            if(depthPlusOneInRange && hasNextCol){\n              xFragAtCurrentDepth = idx.y != d ?\n                getX(b, r, c, idx.y) : xFragAtOutputCoords;\n              z.y = getChannel(xFragAtCurrentDepth, vec2(c, idx.y));\n              if(hasNextRow){\n                z.w = getChannel(xFragAtCurrentDepth, vec2(c + 1, idx.y));\n              }\n            }\n            cache.xy = z.yw;\n            sum += z * z;\n          }\n        }\n        vec4 result = xAtOutputCoords * "+i+";\n        setOutput(result);\n      }\n    "},Wi=function(t){this.variableNames=["dy","maxPos"],this.outputShape=t.inShape;var e=t.strideHeight,n=t.strideWidth,r=t.dilationHeight,o=t.effectiveFilterHeight,i=t.effectiveFilterWidth,a=o-1-t.padInfo.top,s=i-1-t.padInfo.left,u=o*i-1;this.userCode="\n      const ivec2 pads = ivec2("+a+", "+s+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n\n        ivec2 dyRCCorner = coords.yz - pads;\n        int dyRCorner = dyRCCorner.x;\n        int dyCCorner = dyRCCorner.y;\n\n        // Convolve dy(?, ?, d) with pos mask(:, :, d) to get dx(xR, xC, d).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n        for (int wR = 0; wR < "+o+";\n          wR += "+r+") {\n          float dyR = float(dyRCorner + wR) / "+e+".0;\n\n          if (dyR < 0.0 || dyR >= "+t.outHeight+".0 || fract(dyR) > 0.0) {\n            continue;\n          }\n          int idyR = int(dyR);\n\n          for (int wC = 0; wC < "+i+"; wC++) {\n            float dyC = float(dyCCorner + wC) / "+n+".0;\n\n            if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n                fract(dyC) > 0.0) {\n              continue;\n            }\n            int idyC = int(dyC);\n\n            float dyValue = getDy(b, idyR, idyC, d);\n            int maxPosValue = "+u+" - int(getMaxPos(b, idyR, idyC, d));\n\n            // Get the current value, check it against the value from the\n            // position matrix.\n            int curPosValue = wR * "+i+" + wC;\n            float mask = float(maxPosValue == curPosValue ? 1.0 : 0.0);\n\n            dotProd += dyValue * mask;\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},zi=function(t,e,n,r,o,i){void 0===n&&(n=!1),void 0===r&&(r=!1),void 0===o&&(o=!1),void 0===i&&(i=null),this.variableNames=["matrixA","matrixB"],this.usesPackedTextures=!0,this.outputShape=e;var a=n?t[1]:t[2],s=Math.ceil(a/2),u=n?"i * 2, rc.y":"rc.y, i * 2",c=r?"rc.z, i * 2":"i * 2, rc.z",l=n?["a.xxyy","a.zzww"]:["a.xxzz","a.yyww"],h=r?["b.xzxz","b.ywyw"]:["b.xyxy","b.zwzw"],p="",f="";i&&(p="vec4 activation(vec4 x) {\n        "+i+"\n      }",f="result = activation(result);");var d=o?"result += getBiasAtOutCoords();":"";o&&this.variableNames.push("bias"),this.userCode="\n      "+p+"\n\n      const float sharedDimension = "+s+".0;\n\n      vec4 dot2x2ARowBCol(ivec3 rc) {\n        vec4 result = vec4(0);\n        for (int i = 0; i < "+s+"; i++) {\n          vec4 a = getMatrixA(rc.x, "+u+");\n          vec4 b = getMatrixB(rc.x, "+c+");\n\n          result += ("+l[0]+" * "+h[0]+") + ("+l[1]+" * "+h[1]+");\n        }\n        return result;\n      }\n\n      void main() {\n        ivec3 rc = getOutputCoords();\n        vec4 result = dot2x2ARowBCol(rc);\n\n        "+d+"\n\n        "+f+"\n\n        setOutput(result);\n      }\n    "},Ui=function(){function t(t,e,n){this.variableNames=["probs"],this.outputShape=[t,n],this.userCode="\n      uniform float seed;\n\n      void main() {\n        ivec2 coords = getOutputCoords();\n        int batch = coords[0];\n\n        float r = random(seed);\n        float cdf = 0.0;\n\n        for (int i = 0; i < "+(e-1)+"; i++) {\n          cdf += getProbs(batch, i);\n\n          if (r < cdf) {\n            setOutput(float(i));\n            return;\n          }\n        }\n\n        // If no other event happened, last event happened.\n        setOutput(float("+(e-1)+"));\n      }\n    "}return t.prototype.getCustomSetupFunc=function(t){var e=this;return function(n,r){null==e.seedLoc&&(e.seedLoc=n.getUniformLocation(r,"seed")),n.gl.uniform1f(e.seedLoc,t)}},t}(),Vi=function(t,e,n,r){this.variableNames=["indices"],this.outputShape=[t,e],this.userCode="\n      void main() {\n        ivec2 coords = getOutputCoords();\n        int index = round(getIndices(coords.x));\n        setOutput(mix(float("+r+"), float("+n+"),\n                      float(index == coords.y)));\n      }\n    "},Gi=function(t){this.variableNames=["A"],this.outputShape=t;var e=t.length;if(0===e)this.userCode="\n        void main() {\n          setOutput(vec4(getA(), 0., 0., 0.));\n        }\n      ";else{var n=ao("rc",e),r=xo(e),o=function(t,e,n){if(1===t)return"rc > "+e[0];for(var r="",o=t-2;o<t;o++)r+=n[o]+" >= "+e[o],o<t-1&&(r+="||");return r}(e,t,n),i=function(t,e,n,r){if(1===t)return"";var o=r.slice(-2);return"\n    int r = "+o[0]+";\n    int c = "+o[1]+";\n    int rp1 = r + 1;\n    int cp1 = c + 1;\n\n    bool cEdge = cp1 >= "+e+";\n    bool rEdge = rp1 >= "+n+";\n  "}(e,t[t.length-1],t[t.length-2],n),a=function(t,e){var n=t.length,r=function(t,e){for(var n=[],r=0;r<=1;r++)for(var o=0;o<=1;o++){for(var i=(0===r?"r":"rp1")+", "+(0===o?"c":"cp1"),a=2;a<t;a++)i=e[e.length-1-a]+","+i;n.push(i)}return n}(n,e);return 1===n?"getA(rc),\n            rc + 1 >= "+t[0]+" ? 0. : getA(rc + 1),\n            0, 0":"getA("+r[0]+"),\n          cEdge ? 0. : getA("+r[1]+"),\n          rEdge ? 0. : getA("+r[2]+"),\n          rEdge || cEdge ? 0. : getA("+r[3]+")"}(t,n);this.userCode="\n        void main() {\n          "+r+" rc = getOutputCoords();\n\n          if("+o+") {\n            setOutput(vec4(0));\n          } else {\n            "+i+"\n\n            setOutput(vec4("+a+"));\n          }\n        }\n      "}},ji=function(t,e,n){this.variableNames=["x"],this.outputShape=e.map(function(e,n){return e[0]+t[n]+e[1]});var r=t.length,o=xo(r),i=e.map(function(t){return t[0]}).join(","),a=e.map(function(e,n){return e[0]+t[n]}).join(","),s=["coords[0]","coords[1]","coords[2]","coords[3]"].slice(0,r);this.userCode=1!==r?"\n      "+o+" start = "+o+"("+i+");\n      "+o+" end = "+o+"("+a+");\n\n      void main() {\n        "+o+" outC = getOutputCoords();\n        if (any(lessThan(outC, start)) || any(greaterThanEqual(outC, end))) {\n          setOutput(float("+n+"));\n        } else {\n          "+o+" coords = outC - start;\n          setOutput(getX("+s+"));\n        }\n      }\n    ":"\n        int start = "+i+";\n        int end = "+a+";\n\n        void main() {\n          int outC = getOutputCoords();\n          if (outC < start || outC >= end) {\n            setOutput(float("+n+"));\n          } else {\n            setOutput(getX(outC - start));\n          }\n        }\n      "},Hi=function(t,e,n){this.variableNames=["x"],this.usesPackedTextures=!0,this.outputShape=e.map(function(e,n){return e[0]+t[n]+e[1]});for(var r=t.length,o=xo(r),i=e.map(function(t){return t[0]}).join(","),a=e.map(function(e,n){return e[0]+t[n]}).join(","),s=ao("rc",r),u=ao("source",r),c=s[r-1]+" < "+this.outputShape[r-1],l=1===r?"source":"vec2("+u.slice(-2).join()+")",h=[o+" rc = outputLoc;",s[r-1]+" += 1;\n       if("+c+") {\n      ",1===r?"":"}\n       rc = outputLoc;\n       "+s[r-2]+" += 1;\n       if("+s[r-2]+" < "+this.outputShape[r-2]+") {",1===r?"":"  "+s[r-1]+" += 1;\n         if("+c+") {"],p=1===r?"rc < start || rc >= end":"any(lessThan(rc, start)) || any(greaterThanEqual(rc, end))",f="",d=0,v=1===r?2:4;d<v;d++)f+="\n        "+h[d]+"\n        if ("+p+") {\n          result["+d+"] = float("+n+");\n        } else {\n          "+o+" source = rc - start;\n          result["+d+"] = getChannel(getX("+u.join()+"), "+l+");\n        }\n      ";f+=1===r?"} ":"}}",this.userCode="\n      const "+o+" start = "+o+"("+i+");\n      const "+o+" end = "+o+"("+a+");\n\n      void main() {\n        "+o+" outputLoc = getOutputCoords();\n        vec4 result = vec4(0.);\n        "+f+"\n        setOutput(result);\n      }\n    "},qi=function(t,e,n){if(this.variableNames=["x"],"avg"===e&&n)throw new Error("Cannot compute positions for average pool.");var r=t.filterWidth,o=t.strideHeight,i=t.strideWidth,a=t.dilationHeight,s=t.dilationWidth,u=t.effectiveFilterHeight,c=t.effectiveFilterWidth,l=t.padInfo.top,h=t.padInfo.left;this.outputShape=t.outShape;var p="avg"===e,f="0.0";if(p||(f="-1.0 / 1e-20"),n)this.userCode="\n        const ivec2 strides = ivec2("+o+", "+i+");\n        const ivec2 pads = ivec2("+l+", "+h+");\n\n        void main() {\n          ivec4 coords = getOutputCoords();\n          int batch = coords[0];\n          int d = coords[3];\n\n          ivec2 xRCCorner = coords.yz * strides - pads;\n          int xRCorner = xRCCorner.x;\n          int xCCorner = xRCCorner.y;\n\n          // max/min x(?, ?, d) to get y(yR, yC, d).\n          // ? = to be determined\n          float minMaxValue = 0.0;\n          float minMaxValueFound = 0.0;\n          int minMaxPosition = 0;\n          float avgValue = 0.0;\n\n          for (int wR = 0; wR < "+u+";\n              wR += "+a+") {\n            int xR = xRCorner + wR;\n\n            if (xR < 0 || xR >= "+t.inHeight+") {\n              continue;\n            }\n\n            for (int wC = 0; wC < "+c+";\n                wC += "+s+") {\n              int xC = xCCorner + wC;\n\n              if (xC < 0 || xC >= "+t.inWidth+") {\n                continue;\n              }\n\n              float value = getX(batch, xR, xC, d);\n\n              // If a min / max value has already been found, use it. If not,\n              // use the current value.\n              float currMinMaxValue = mix(\n                  value, minMaxValue, minMaxValueFound);\n              if (value >= currMinMaxValue) {\n                minMaxValue = value;\n                minMaxValueFound = 1.0;\n                minMaxPosition = wR * "+c+" + wC;\n              }\n            }\n          }\n          setOutput(float(minMaxPosition));\n        }\n      ";else{var d=e+"("+e+"("+e+"(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])";"avg"===e&&(d="avgValue / count");var v=4*Math.floor(r/4),m=r%4,g="\n      if ("+p+") {\n        avgValue += dot(values, ones);\n      } else {\n        minMaxValue = max(values, minMaxValue);\n      }\n    ";this.userCode="\n      const ivec2 strides = ivec2("+o+", "+i+");\n      const ivec2 pads = ivec2("+l+", "+h+");\n      const float initializationValue = "+f+";\n      const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0);\n\n      float count = 0.0;\n\n      float getValue(int batch, int xR, int xC, int d) {\n        if (xC < 0 || xC >= "+t.inWidth+") {\n          return initializationValue;\n        }\n        count += 1.0;\n        return getX(batch, xR, xC, d);\n      }\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int batch = coords[0];\n        int d = coords[3];\n\n        ivec2 xRCCorner = coords.yz * strides - pads;\n        int xRCorner = xRCCorner.x;\n        int xCCorner = xRCCorner.y;\n\n        // max/min x(?, ?, d) to get y(yR, yC, d).\n        // ? = to be determined\n        vec4 minMaxValue = vec4("+f+");\n        float avgValue = 0.0;\n        count = 0.0;\n\n        for (int wR = 0; wR < "+u+";\n            wR += "+a+") {\n          int xR = xRCorner + wR;\n\n          if (xR < 0 || xR >= "+t.inHeight+") {\n            continue;\n          }\n\n          for (int wC = 0; wC < "+v+"; wC += 4) {\n            int xC = xCCorner + wC * "+s+";\n\n            vec4 values = vec4(\n              getValue(batch, xR, xC, d),\n              getValue(batch, xR, xC + "+s+", d),\n              getValue(batch, xR, xC + 2 * "+s+", d),\n              getValue(batch, xR, xC + 3 * "+s+", d)\n            );\n\n            "+g+"\n          }\n\n          int xC = xCCorner + "+v+";\n          if ("+(1===m)+") {\n            vec4 values = vec4(\n              getValue(batch, xR, xC, d),\n              initializationValue,\n              initializationValue,\n              initializationValue\n            );\n\n            "+g+"\n          } else if ("+(2===m)+") {\n            vec4 values = vec4(\n              getValue(batch, xR, xC, d),\n              getValue(batch, xR, xC + "+s+", d),\n              initializationValue,\n              initializationValue\n            );\n\n            "+g+"\n          } else if ("+(3===m)+") {\n            vec4 values = vec4(\n              getValue(batch, xR, xC, d),\n              getValue(batch, xR, xC + "+s+", d),\n              getValue(batch, xR, xC + 2 * "+s+", d),\n              initializationValue\n            );\n\n            "+g+"\n          }\n        }\n        setOutput("+d+");\n      }\n    "}},$i=function(t,e){this.variableNames=["x"];var n=t.windowSize,r=t.batchSize,o=t.inSize,i=Math.ceil(o/n);this.outputShape=[r,i];var a="0.0",s="";"prod"===e?a="1.0":"min"===e?(a="1.0 / 1e-20",s="min"):"max"===e&&(a="-1.0 / 1e-20",s="max");var u=e+"("+e+"("+e+"(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])";"sum"===e?u="sumValue":"prod"===e?u="prodValue":"all"===e?u="allValue":"any"===e&&(u="anyValue");var c=4*Math.floor(n/4),l=n%4,h="\n      if ("+("sum"===e)+") {\n        sumValue += dot(values, ones);\n      } else if ("+("prod"===e)+") {\n        vec2 tmp = vec2(values[0], values[1]) * vec2(values[2], values[3]);\n        prodValue *= tmp[0] * tmp[1];\n      } else {\n        minMaxValue = "+s+"(values, minMaxValue);\n      }\n    ",p="vec4";"all"===e?(a="1.0",h="\n        bool reducedAllValue = all(values);\n        float floatedReducedAllValue = float(reducedAllValue);\n        allValue = float(allValue >= 1.0 && floatedReducedAllValue >= 1.0);\n      ",p="bvec4"):"any"===e&&(a="0.0",h="\n        bool reducedAnyValue = any(values);\n        float floatedReducedAnyValue = float(reducedAnyValue);\n        anyValue = float(anyValue >= 1.0 || floatedReducedAnyValue >= 1.0);\n      ",p="bvec4");var f="";o%n>0&&(f="\n        if (inIdx < 0 || inIdx >= "+o+") {\n          return initializationValue;\n        }\n      "),this.userCode="\n      const float initializationValue = "+a+";\n      const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0);\n\n      float getValue(int batch, int inIdx) {\n        "+f+"\n        return getX(batch, inIdx);\n      }\n\n      void main() {\n        ivec2 coords = getOutputCoords();\n        int batch = coords[0];\n        int outIdx = coords[1];\n        int inOffset = outIdx * "+n+";\n\n        vec4 minMaxValue = vec4("+a+");\n        float prodValue = 1.0;\n        float sumValue = 0.0;\n        float allValue = 1.0;\n        float anyValue = 0.0;\n\n        for (int i = 0; i < "+c+"; i += 4) {\n          int inIdx = inOffset + i;\n          "+p+" values = "+p+"(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            getValue(batch, inIdx + 2),\n            getValue(batch, inIdx + 3)\n          );\n\n          "+h+"\n        }\n\n        int inIdx = inOffset + "+c+";\n        if ("+(1===l)+") {\n          "+p+" values = "+p+"(\n            getValue(batch, inIdx),\n            initializationValue,\n            initializationValue,\n            initializationValue\n          );\n\n          "+h+"\n        } else if ("+(2===l)+") {\n          "+p+" values = "+p+"(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            initializationValue,\n            initializationValue\n          );\n\n          "+h+"\n        } else if ("+(3===l)+") {\n          "+p+" values = "+p+"(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            getValue(batch, inIdx + 2),\n            initializationValue\n          );\n\n          "+h+"\n        }\n        setOutput("+u+");\n      }\n    "},Ki=function(t,e){this.variableNames=["A"],this.usesPackedTextures=!0,this.outputShape=t;for(var n="",r=0;r<4;r++){var o="thisRC = rc;";r%2==1&&(o+="thisRC.z += 1;"),r>1&&(o+="thisRC.y += 1;"),n+="\n        "+o+"\n        "+(r>0?"if(thisRC.y < rows && thisRC.z < cols){":"")+"\n          int flatIndex = getFlatIndex(thisRC);\n\n          ivec3 inputRC = inputCoordsFromReshapedOutCoords(flatIndex);\n          vec2 inputRCInnerDims = vec2(float(inputRC.y),float(inputRC.z));\n\n          result["+r+"] =\n            getChannel(getA(inputRC.x, inputRC.y, inputRC.z), inputRCInnerDims);\n        "+(r>0?"}":"")+"\n      "}this.userCode="\n      \n    ivec3 inputCoordsFromReshapedOutCoords(int index) {\n      "+uo(["r","c","d"],e)+"\n      return ivec3(r, c, d);\n    }\n  \n      "+co(t)+"\n\n      void main() {\n        ivec3 rc = getOutputCoords();\n\n        vec4 result = vec4(0.);\n\n        ivec3 thisRC;\n        int rows = "+t[1]+";\n        int cols = "+t[2]+";\n\n        "+n+"\n\n        setOutput(result);\n      }\n    "},Xi=function(t,e,n){this.variableNames=["dy"],this.outputShape=[],this.outputShape=e.shape;var r=e.shape,o=r[1],i=r[2],a=t.shape,s=a[1],u=a[2],c=[n&&s>1?o-1:o,n&&u>1?i-1:i],l=[n&&s>1?s-1:s,n&&u>1?u-1:u],h=c[0]/l[0],p=c[1]/l[1],f=1/h,d=1/p,v=2*Math.ceil(f)+2,m=2*Math.ceil(d)+2;this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n        int r = coords[1];\n        int c = coords[2];\n\n        float accumulator = 0.0;\n\n        const float heightScale = float("+h+");\n        const float widthScale = float("+p+");\n\n        const float invHeightScale = float("+f+");\n        const float invWidthScale = float("+d+");\n\n        const int winHeight = int("+v+");\n        const int winWidth = int("+m+");\n\n        // Compute bounds for where in dy we will look\n        float startRLerp = floor(float(r) * invHeightScale);\n        int startDyR = int(startRLerp - float(winHeight / 2));\n\n        float startCLerp = floor(float(c) * invWidthScale);\n        int startDyC = int(startCLerp - float(winWidth / 2));\n\n        // Loop over dy\n        for (int dyROffset = 0; dyROffset < winHeight; dyROffset++) {\n          int dyR = dyROffset + startDyR;\n\n          // Guard against the window exceeding the bounds of dy\n          if (dyR < 0 || dyR >= "+s+") {\n            continue;\n          }\n\n          for (int dyCOffset = 0; dyCOffset < winWidth; dyCOffset++) {\n            int dyC = dyCOffset + startDyC;\n\n            // Guard against the window exceeding the bounds of dy\n            if (dyC < 0 || dyC >= "+u+") {\n              continue;\n            }\n\n            float dxR = float(dyR) * heightScale;\n            int topDxRIndex = int(floor(dxR));\n            int bottomDxRIndex = int(min(ceil(dxR), "+(o-1)+".0));\n            float dxRLerp = dxR - float(topDxRIndex);\n            float inverseDxRLerp = 1.0 - dxRLerp;\n\n            float dxC = float(dyC) * widthScale;\n            int leftDxCIndex = int(floor(dxC));\n            int rightDxCIndex = int(min(ceil(dxC), "+(i-1)+".0));\n            float dxCLerp = dxC - float(leftDxCIndex);\n            float inverseDxCLerp = 1.0 - dxCLerp;\n\n            if (r == topDxRIndex && c == leftDxCIndex) {\n              // topLeft\n              accumulator +=\n                getDy(b, dyR, dyC, d) * inverseDxRLerp * inverseDxCLerp;\n            }\n\n            if (r == topDxRIndex && c == rightDxCIndex) {\n              // topRight\n              accumulator += getDy(b, dyR, dyC, d) * inverseDxRLerp * dxCLerp;\n            }\n\n            if (r == bottomDxRIndex && c == leftDxCIndex) {\n              // bottomLeft\n              accumulator += getDy(b, dyR, dyC, d) * dxRLerp * inverseDxCLerp;\n            }\n\n            if (r == bottomDxRIndex && c == rightDxCIndex) {\n              // bottomRight\n              accumulator += getDy(b, dyR, dyC, d) * dxRLerp * dxCLerp;\n            }\n          }\n        }\n        // End loop over dy\n\n        setOutput(accumulator);\n      }\n    "},Yi=function(t,e,n,r){this.variableNames=["A"],this.outputShape=[];var o=t[0],i=t[1],a=t[2],s=t[3];this.outputShape=[o,e,n,s];var u=[r&&e>1?i-1:i,r&&n>1?a-1:a],c=[r&&e>1?e-1:e,r&&n>1?n-1:n];this.userCode="\n      const vec2 effectiveInputOverOutputRatioRC = vec2(\n          "+u[0]/c[0]+",\n          "+u[1]/c[1]+");\n      const vec2 inputShapeRC = vec2("+i+".0, "+a+".0);\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n        ivec2 yRC = coords.yz;\n\n        // Fractional source index.\n        vec2 sourceFracIndexRC = vec2(yRC) * effectiveInputOverOutputRatioRC;\n\n        // Compute the four integer indices.\n        ivec2 sourceFloorRC = ivec2(sourceFracIndexRC);\n        ivec2 sourceCeilRC = ivec2(\n          min(inputShapeRC - 1.0, ceil(sourceFracIndexRC)));\n\n        float topLeft = getA(b, sourceFloorRC.x, sourceFloorRC.y, d);\n        float bottomLeft = getA(b, sourceCeilRC.x, sourceFloorRC.y, d);\n        float topRight = getA(b, sourceFloorRC.x, sourceCeilRC.y, d);\n        float bottomRight = getA(b, sourceCeilRC.x, sourceCeilRC.y, d);\n\n        vec2 fracRC = sourceFracIndexRC - vec2(sourceFloorRC);\n\n        float top = topLeft + (topRight - topLeft) * fracRC.y;\n        float bottom = bottomLeft + (bottomRight - bottomLeft) * fracRC.y;\n        float newValue = top + (bottom - top) * fracRC.x;\n\n        setOutput(newValue);\n      }\n    "},Qi=function(t,e,n,r){this.variableNames=["A"],this.usesPackedTextures=!0,this.outputShape=[];var o=t[0],i=t[1],a=t[2],s=t[3];this.outputShape=[o,e,n,s];var u=[r&&e>1?i-1:i,r&&n>1?a-1:a],c=[r&&e>1?e-1:e,r&&n>1?n-1:n];this.userCode="\n      const vec3 effectiveInputOverOutputRatioRC = vec3(\n          "+u[0]/c[0]+",\n          "+u[1]/c[1]+",\n          "+u[1]/c[1]+");\n      const vec3 inputShapeRC = vec3("+i+".0, "+a+".0,\n                                     "+a+".0);\n\n      float getAValue(int b, int r, int c, int d) {\n        return getChannel(getA(b, r, c, d), vec2(c, d));\n      }\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n        // Calculate values for next column in yRC.z.\n        ivec3 yRC = coords.yzz + ivec3(0, 0, 1);\n\n        // Fractional source index.\n        vec3 sourceFracIndexRC = vec3(yRC) * effectiveInputOverOutputRatioRC;\n\n        // Compute the four integer indices.\n        ivec3 sourceFloorRC = ivec3(sourceFracIndexRC);\n        ivec3 sourceCeilRC = ivec3(\n          min(inputShapeRC - 1.0, ceil(sourceFracIndexRC)));\n        \n        // Should we calculate next column and row elements in 2x2 packed cell.\n        bool hasNextCol = d < "+(s-1)+"; \n        bool hasNextRow = coords.z < "+(n-1)+";\n\n        // In parallel, construct four corners for all four components in\n        // packed 2x2 cell.\n        vec4 topLeft = vec4(\n          getAValue(b, sourceFloorRC.x, sourceFloorRC.y, d),\n          hasNextCol ? getAValue(b, sourceFloorRC.x, sourceFloorRC.y, d + 1)\n                     : 0.0,\n          hasNextRow ? getAValue(b, sourceFloorRC.x, sourceFloorRC.z, d)\n                     : 0.0,\n          (hasNextRow && hasNextCol) ?\n            getAValue(b, sourceFloorRC.x, sourceFloorRC.z, d + 1) : 0.0);\n\n        vec4 bottomLeft = vec4(\n          getAValue(b, sourceCeilRC.x, sourceFloorRC.y, d),\n          hasNextCol ? getAValue(b, sourceCeilRC.x, sourceFloorRC.y, d + 1)\n                     : 0.0,\n          hasNextRow ? getAValue(b, sourceCeilRC.x, sourceFloorRC.z, d)\n                     : 0.0,\n          (hasNextRow && hasNextCol) ?\n            getAValue(b, sourceCeilRC.x, sourceFloorRC.z, d + 1) : 0.0);\n\n        vec4 topRight = vec4(\n          getAValue(b, sourceFloorRC.x, sourceCeilRC.y, d),\n          hasNextCol ? getAValue(b, sourceFloorRC.x, sourceCeilRC.y, d + 1)\n                     : 0.0,\n          hasNextRow ? getAValue(b, sourceFloorRC.x, sourceCeilRC.z, d)\n                     : 0.0,\n          (hasNextRow && hasNextCol) ?\n            getAValue(b, sourceFloorRC.x, sourceCeilRC.z, d + 1) : 0.0);\n\n        vec4 bottomRight = vec4(\n          getAValue(b, sourceCeilRC.x, sourceCeilRC.y, d),\n          hasNextCol ? getAValue(b, sourceCeilRC.x, sourceCeilRC.y, d + 1)\n                     : 0.0,\n          hasNextRow ? getAValue(b, sourceCeilRC.x, sourceCeilRC.z, d)\n                     : 0.0,\n          (hasNextRow && hasNextCol) ?\n            getAValue(b, sourceCeilRC.x, sourceCeilRC.z, d + 1) : 0.0);\n\n        vec3 fracRC = sourceFracIndexRC - vec3(sourceFloorRC);\n\n        vec4 top = mix(topLeft, topRight, fracRC.yyzz);\n        vec4 bottom = mix(bottomLeft, bottomRight, fracRC.yyzz);\n        vec4 newValue = mix(top, bottom, fracRC.x);\n\n        setOutput(newValue);\n      }\n    "},Ji=function(t,e,n){this.variableNames=["dy"],this.outputShape=[],this.outputShape=e.shape;var r=e.shape,o=r[1],i=r[2],a=t.shape,s=a[1],u=a[2],c=[n&&s>1?o-1:o,n&&u>1?i-1:i],l=[n&&s>1?s-1:s,n&&u>1?u-1:u],h=c[0]/l[0],p=c[1]/l[1],f=1/h,d=1/p,v=2*Math.ceil(f)+2,m=2*Math.ceil(d)+2;this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n        int r = coords[1];\n        int c = coords[2];\n\n        float accumulator = 0.0;\n\n        const float heightScale = float("+h+");\n        const float widthScale = float("+p+");\n\n        const float invHeightScale = float("+f+");\n        const float invWidthScale = float("+d+");\n\n        const int winHeight = int("+v+");\n        const int winWidth = int("+m+");\n\n        // Compute bounds for where in dy we will look\n        float startRLerp = floor(float(r) * invHeightScale);\n        int startDyR = int(floor(startRLerp - float(winHeight / 2)));\n\n        float startCLerp = floor(float(c) * invWidthScale);\n        int startDyC = int(floor(startCLerp - float(winWidth / 2)));\n\n        // Loop over dy\n        for (int dyROffset = 0; dyROffset < winHeight; dyROffset++) {\n          int dyR = dyROffset + startDyR;\n\n          // Guard against the window exceeding the bounds of dy\n          if (dyR < 0 || dyR >= "+s+") {\n            continue;\n          }\n\n          for (int dyCOffset = 0; dyCOffset < winWidth; dyCOffset++) {\n            int dyC = dyCOffset + startDyC;\n\n            // Guard against the window exceeding the bounds of dy\n            if (dyC < 0 || dyC >= "+u+") {\n              continue;\n            }\n\n            float sourceFracRow =\n              float("+c[0]+") *\n                (float(dyR) / float("+l[0]+"));\n\n            float sourceFracCol =\n                float("+c[1]+") *\n                  (float(dyC) / float("+l[1]+"));\n\n            int sourceNearestRow = int(min(\n                float(int("+o+") - 1),\n                "+n+" ? float(round(sourceFracRow)) :\n                                  float(floor(sourceFracRow))));\n\n            int sourceNearestCol = int(min(\n                float(int("+i+") - 1),\n                "+n+" ? float(round(sourceFracCol)) :\n                                  float(floor(sourceFracCol))));\n\n            if (r == sourceNearestRow && c == sourceNearestCol) {\n              accumulator += getDy(b, dyR, dyC, d);\n            }\n          }\n        }\n        // End loop over dy\n\n        setOutput(accumulator);\n      }\n    "},Zi=function(t,e,n,r){this.variableNames=["A"],this.outputShape=[];var o=t[0],i=t[1],a=t[2],s=t[3];this.outputShape=[o,e,n,s];var u=[r&&e>1?i-1:i,r&&n>1?a-1:a],c=[r&&e>1?e-1:e,r&&n>1?n-1:n],l=r?"0.5":"0.0";this.userCode="\n      const vec2 effectiveInputOverOutputRatioRC = vec2(\n          "+u[0]/c[0]+",\n          "+u[1]/c[1]+");\n      const vec2 inputShapeRC = vec2("+i+".0, "+a+".0);\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n        ivec2 yRC = coords.yz;\n\n        // Fractional source index.\n        vec2 sourceFracIndexRC = vec2(yRC) * effectiveInputOverOutputRatioRC;\n\n        // Compute the coordinators of nearest neighbor point.\n        ivec2 sourceNearestRC = ivec2(\n          min(inputShapeRC - 1.0, floor(sourceFracIndexRC + "+l+")));\n\n        float newValue = getA(b, sourceNearestRC.x, sourceNearestRC.y, d);\n\n        setOutput(newValue);\n      }\n    "},ta=function(t,e){this.variableNames=["x"];var n=t.length;if(n>4)throw new Error("WebGL backend: Reverse of rank-"+n+" tensor is not yet supported");if(this.outputShape=t,1!==n){var r=t.map(function(n,r){return function(n){return-1!==e.indexOf(n)&&1!==t[n]?t[n]+" - coords["+n+"] - 1":"coords["+n+"]"}(r)}).join(","),o=xo(n);this.userCode="\n      void main() {\n        "+o+" coords = getOutputCoords();\n        setOutput(getX("+r+"));\n      }\n    "}else this.userCode="\n        void main() {\n          int coord = getOutputCoords();\n          setOutput(getX("+t[0]+" - coord - 1));\n        }\n      "},ea=function(t,e){this.variableNames=["x"],this.usesPackedTextures=!0;var n=t.length;if(n>4)throw new Error("WebGL backend: Reverse of rank-"+n+" tensor is not yet supported");this.outputShape=t;var r=ao("rc",n),o=r[n-1]+" + 1 < "+this.outputShape[n-1],i=r[n-2]+" + 1 < "+this.outputShape[n-2],a=xo(n);function s(n){var r=t.map(function(r,o){return function(n,r){return-1!==e.indexOf(n)&&1!==t[n]?t[n]+" - "+r[n]+" - 1":""+r[n]}(o,n)});return"getChannel(getX("+r.join(",")+"), vec2("+r.slice(-2).join(",")+"))"}this.userCode=1===n?"\n        void main(){\n          int rc = getOutputCoords();\n          vec4 result = vec4(0.);\n          result.r = getChannel(getX("+t[0]+" - rc - 1),\n            "+t[0]+" - rc - 1);\n          if("+o+"){\n              result.g = getChannel(getX("+t[0]+" - (rc  + 1) - 1),\n                "+t[0]+" - (rc  + 1) - 1);\n          }\n          setOutput(result);\n        }\n      ":"\n        void main() {\n          "+a+" rc = getOutputCoords();\n          vec4 result = vec4(0.);\n          result.r = "+s(r.slice())+";\n          if("+o+"){\n            result.g = "+function(t){return t[n-1]="("+t[n-1]+" + 1)",s(t)}(r.slice())+";\n          }\n          if("+i+") {\n            result.b = "+function(t){return t[n-2]="("+t[n-2]+" + 1)",s(t)}(r.slice())+";\n            if("+o+") {\n              result.a = "+function(t){return t[n-1]="("+t[n-1]+" + 1)",t[n-2]="("+t[n-2]+" + 1)",s(t)}(r.slice())+";\n            }\n          }\n          setOutput(result);\n        }\n    "},na=function(t,e,n,r,o,i,a){this.variableNames=["updates","indices","defaultValue"],this.outputShape=i;var s=xo(o.length),u=xo(i.length),c="";1===n?c="i":2===n&&(c="i, j");var l="getIndices("+c+")",h="";1===r?h="i":2===r&&(h="i, coords[1]");var p="getUpdates("+h+")",f=e>1?"strides[j]":"strides";this.userCode="\n        "+s+" strides = "+s+"("+o+");\n\n        void main() {\n          "+u+" coords = getOutputCoords();\n          float sum = 0.0;\n          bool found = false;\n          for (int i = 0; i < "+t+"; i++) {\n            int flattenedIndex = 0;\n            for (int j = 0; j < "+e+"; j++) {\n              int index = round("+l+");\n              flattenedIndex += index * "+f+";\n            }\n            if (flattenedIndex == coords[0]) {\n              sum += "+p+";\n              found = true;\n            }\n          }\n          setOutput(mix(getDefaultValue(), sum, float(found)));\n        }\n      "},ra=function(t,e){this.variableNames=["x","segmentIds"];var n=t.windowSize,r=t.batchSize,o=t.inSize,i=t.numSegments,a=i*Math.ceil(o/n);this.outputShape=[r,a];var s=4*Math.floor(n/4),u=n%4,c="\n        sumValue += dot(values, segFilter);\n    ",l="";o%n>0&&(l="\n        if (inIdx < 0 || inIdx >= "+o+") {\n          return initializationValue;\n        }\n      ");var h="";o%n>0&&(h="\n        if (inIdx < 0 || inIdx >= "+o+") {\n          return -1.0;\n        }\n      "),this.userCode="\n      const float initializationValue = 0.0;\n\n      float getValue(int batch, int inIdx) {\n        "+l+"\n        return getX(batch, inIdx);\n      }\n\n      float getSegmentIdAtIndex(int inIdx) {\n        "+h+"\n        return getSegmentIds(inIdx);\n      }\n\n      void main() {\n        ivec2 coords = getOutputCoords();\n        int batch = coords[0];\n        int outIdx = coords[1];\n        int inOffset = int(floor(float(outIdx) / float(\n          "+i+")) * float("+n+"));\n        int currentSeg = int(mod(float(outIdx), float("+i+")));\n\n        float sumValue = 0.0;\n\n        for (int i = 0; i < "+s+"; i += 4) {\n          int inIdx = inOffset + i;\n          vec4 values = vec4(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            getValue(batch, inIdx + 2),\n            getValue(batch, inIdx + 3)\n          );\n\n          vec4 segFilter = vec4(\n            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 2)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 3)) == currentSeg ? 1 : 0\n          );\n\n          "+c+"\n        }\n\n        int inIdx = inOffset + "+s+";\n        if ("+(1===u)+") {\n          vec4 values = vec4(\n            getValue(batch, inIdx),\n            initializationValue,\n            initializationValue,\n            initializationValue\n          );\n\n          int inIdxSeg = int(getSegmentIdAtIndex(inIdx));\n\n          vec4 segFilter = vec4(\n            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,\n            0,\n            0,\n            0\n          );\n\n          "+c+"\n        } else if ("+(2===u)+") {\n          vec4 values = vec4(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            initializationValue,\n            initializationValue\n          );\n\n          vec4 segFilter = vec4(\n            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,\n              0,\n              0\n          );\n\n          "+c+"\n        } else if ("+(3===u)+") {\n          vec4 values = vec4(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            getValue(batch, inIdx + 2),\n            initializationValue\n          );\n\n          vec4 segFilter = vec4(\n            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 2)) == currentSeg ? 1 : 0,\n            0\n          );\n\n          "+c+"\n        }\n        setOutput(sumValue);\n      }\n    "},oa=function(t,e,n){var r,o;if(this.variableNames=["c","a","b"],this.outputShape=e,n>4)throw Error("Where for rank "+n+" is not yet supported");if(1===n)o="resRC",r="resRC";else{for(var i=["resRC.x","resRC.y","resRC.z","resRC.w"],a=[],s=[],u=0;u<e.length;u++)s.push(""+i[u]),u<t&&a.push(""+i[u]);r=a.join(),o=s.join()}var c=xo(n);this.userCode="\n      void main() {\n        "+c+" resRC = getOutputCoords();\n        float cVal = getC("+r+");\n        if (cVal >= 1.0) {\n          setOutput(getA("+o+"));\n        } else {\n          setOutput(getB("+o+"));\n        }\n      }\n    "},ia=function(){function t(t){this.variableNames=["source"],this.outputShape=t,this.rank=t.length;var e,n=xo(this.rank),r="uniform int start["+this.rank+"];",o=function(t){if(1===t)return"sourceLoc";if(t<=6)return aa.slice(0,t).map(function(t){return"sourceLoc."+t}).join(",");throw Error("Slicing for rank "+t+" is not yet supported")}(this.rank);e="\n        "+n+" sourceLoc;\n        "+n+" coords = getOutputCoords();\n        "+t.map(function(t,e){return"sourceLoc."+aa[e]+" = start["+e+"] + coords."+aa[e]+";"}).join("\n")+"\n      ",this.userCode="\n      "+r+"\n      void main() {\n        "+e+"\n        setOutput(getSource("+o+"));\n      }\n    "}return t.prototype.getCustomSetupFunc=function(t){var e=this;if(t.length!==this.rank)throw Error("The rank ("+this.rank+") of the program must match the length of start ("+t.length+")");return function(n,r){null==e.startLoc&&(e.startLoc=n.getUniformLocationNoThrow(r,"start"),null==e.startLoc)||n.gl.uniform1iv(e.startLoc,t)}},t}(),aa=["x","y","z","w","u","v"],sa=function(){function t(t){this.variableNames=["source"],this.usesPackedTextures=!0,this.outputShape=t,this.rank=t.length;var e=xo(this.rank),n=ao("coords",this.rank),r=ao("sourceLoc",this.rank),o=1===this.rank?"sourceLoc":"vec2("+r.slice(-2).join()+")",i="getChannel(getSource("+r.join()+"), "+o+")",a="\n      result.x = "+i+";\n      if (++"+n[this.rank-1]+" < "+t[this.rank-1]+") {\n        ++"+r[this.rank-1]+";\n        result.y = "+i+";\n        --"+r[this.rank-1]+";\n      }\n    ",s=1===this.rank?"":"\n      --"+n[this.rank-1]+";\n      if (++"+n[this.rank-2]+" < "+t[this.rank-2]+") {\n        ++"+r[this.rank-2]+";\n        result.z = "+i+";\n        if (++"+n[this.rank-1]+" < "+t[this.rank-1]+") {\n          ++"+r[this.rank-1]+";\n          result.w = "+i+";\n        }\n      }\n    ",u=this.rank<=4?"sourceLoc = coords +\n            "+e+"("+t.map(function(t,e){return"start["+e+"]"}).join()+");":t.map(function(t,e){return r[e]+" = "+n[e]+" + start["+e+"];"}).join("\n");this.userCode="\n      uniform int start["+this.rank+"];\n      void main() {\n        "+e+" coords = getOutputCoords();\n        "+e+" sourceLoc;\n        "+u+" \n        vec4 result = vec4(0.);\n        "+a+"\n        "+s+"\n        setOutput(result);\n      }\n    "}return t.prototype.getCustomSetupFunc=function(t){var e=this;if(t.length!==this.rank)throw Error("The rank ("+this.rank+") of the program must match the length of start ("+t.length+")");return function(n,r){null==e.startLoc&&(e.startLoc=n.getUniformLocationNoThrow(r,"start"),null==e.startLoc)||n.gl.uniform1iv(e.startLoc,t)}},t}(),ua=function(t,e,n,r){this.variableNames=["x"];var o=n.filter(function(t,e){return-1===r.indexOf(e)});this.outputShape=o;var i=n.length,a=xo(n.length),s=xo(o.length),u="";if(1===i)u="coords * strides + begin";else{var c=0;u=n.map(function(t,e){return-1===r.indexOf(e)?(c++,1===o.length?"coords * strides["+e+"] + begin["+e+"]":"coords["+(c-1)+"] * strides["+e+"] + begin["+e+"]"):"begin["+e+"]"}).join(",")}this.userCode="\n      "+a+" begin = "+a+"("+t+");\n      "+a+" strides = "+a+"("+e+");\n\n      void main() {\n        "+s+" coords = getOutputCoords();\n        setOutput(getX("+u+"));\n      }\n    "},ca=function(){function t(t){this.gpgpu=t,this.numUsedTextures=0,this.numFreeTextures=0,this.freeTextures={},this.logEnabled=!1,this.usedTextures={}}return t.prototype.acquireTexture=function(t,e,n){var r,o=la(e,n),i=ha(t,o,n);if(i in this.freeTextures||(this.freeTextures[i]=[]),i in this.usedTextures||(this.usedTextures[i]=[]),this.freeTextures[i].length>0){this.numFreeTextures--,this.numUsedTextures++,this.log();var a=this.freeTextures[i].shift();return this.usedTextures[i].push(a),a}return this.numUsedTextures++,this.log(),o===Qo.PACKED_2X2_FLOAT32?r=this.gpgpu.createPackedMatrixTexture(t[0],t[1]):o===Qo.PACKED_2X2_FLOAT16?r=this.gpgpu.createFloat16PackedMatrixTexture(t[0],t[1]):o===Qo.UNPACKED_FLOAT32?r=this.gpgpu.createFloat32MatrixTexture(t[0],t[1]):o===Qo.UNPACKED_FLOAT16?r=this.gpgpu.createFloat16MatrixTexture(t[0],t[1]):o===Qo.PACKED_4X1_UNSIGNED_BYTE&&(r=this.gpgpu.createUnsignedBytesMatrixTexture(t[0],t[1])),this.usedTextures[i].push(r),r},t.prototype.releaseTexture=function(t,e,n,r){if(null!=this.freeTextures){var o=ha(e,la(n,r),r);o in this.freeTextures||(this.freeTextures[o]=[]),this.freeTextures[o].push(t),this.numFreeTextures++,this.numUsedTextures--;var i=this.usedTextures[o],a=i.indexOf(t);if(a<0)throw new Error("Cannot release a texture that was never provided by this texture manager");i.splice(a,1),this.log()}},t.prototype.log=function(){if(this.logEnabled){var t=this.numFreeTextures+this.numUsedTextures;console.log("Free/Used",this.numFreeTextures+" / "+this.numUsedTextures,"("+t+")")}},t.prototype.getNumUsedTextures=function(){return this.numUsedTextures},t.prototype.getNumFreeTextures=function(){return this.numFreeTextures},t.prototype.dispose=function(){var t=this;if(null!=this.freeTextures){for(var e in this.freeTextures)this.freeTextures[e].forEach(function(e){t.gpgpu.deleteMatrixTexture(e)});for(var e in this.usedTextures)this.usedTextures[e].forEach(function(e){t.gpgpu.deleteMatrixTexture(e)});this.freeTextures=null,this.usedTextures=null,this.numUsedTextures=0,this.numFreeTextures=0}},t}();function la(t,e){if(t===Yo.UPLOAD)return Qo.PACKED_2X2_FLOAT32;if(t===Yo.RENDER||null==t)return e?f.getBool("WEBGL_RENDER_FLOAT32_ENABLED")?Qo.PACKED_2X2_FLOAT32:Qo.PACKED_2X2_FLOAT16:f.getBool("WEBGL_RENDER_FLOAT32_ENABLED")?Qo.UNPACKED_FLOAT32:Qo.UNPACKED_FLOAT16;if(t===Yo.DOWNLOAD||t===Yo.PIXELS)return Qo.PACKED_4X1_UNSIGNED_BYTE;throw new Error("Unknown logical texture type "+t)}function ha(t,e,n){return t[0]+"_"+t[1]+"_"+e+"_"+n}var pa=function(t,e){this.variableNames=["A"];for(var n=new Array(t.length),r=0;r<n.length;r++)n[r]=t[r]*e[r];this.outputShape=n,this.rank=n.length;var o=xo(this.rank),i=function(t){var e=t.length;if(e>5)throw Error("Tile for rank "+e+" is not yet supported");if(1===e)return"imod(resRC, "+t[0]+")";for(var n=["resRC.x","resRC.y","resRC.z","resRC.w","resRC.u"],r=[],o=0;o<t.length;o++)r.push("imod("+n[o]+", "+t[o]+")");return r.join()}(t);this.userCode="\n      void main() {\n        "+o+" resRC = getOutputCoords();\n        setOutput(getA("+i+"));\n      }\n    "},fa=function(t,e){this.variableNames=["A"];for(var n=new Array(t.length),r=0;r<n.length;r++)n[r]=t[e[r]];this.outputShape=n,this.rank=n.length;var o=xo(this.rank),i=function(t){var e=t.length;if(e>6)throw Error("Transpose for rank "+e+" is not yet supported");for(var n=["resRC.x","resRC.y","resRC.z","resRC.w","resRC.u","resRC.v"],r=new Array(e),o=0;o<t.length;o++)r[t[o]]=n[o];return r.join()}(e);this.userCode="\n    void main() {\n      "+o+" resRC = getOutputCoords();\n      setOutput(getA("+i+"));\n    }\n    "},da=function(t,e){this.variableNames=["A"],this.usesPackedTextures=!0;for(var n=new Array(t.length),r=0;r<n.length;r++)n[r]=t[e[r]];if(this.outputShape=n,this.rank=n.length,this.rank>6)throw Error("Packed transpose for rank "+this.rank+" is not yet supported.");var o=xo(this.rank),i=io("rc",this.rank),a=new Array(this.rank);for(r=0;r<e.length;r++)a[e[r]]=i[r];var s="vec2("+a.slice(-2).join()+")",u="++"+i[this.rank-1]+" < "+n[this.rank-1],c="getChannel(getA("+a.join()+"), "+s+")";this.userCode="\n    void main() {\n      "+o+" rc = getOutputCoords();\n      vec4 result = vec4(0.);\n      result[0] = "+c+";\n      if("+u+") {\n        result[1] = "+c+";\n      }\n      --"+i[this.rank-1]+";\n      if(++"+i[this.rank-2]+" < "+n[this.rank-2]+") {\n        result[2] = "+c+";\n        if("+u+") {\n          result[3] = "+c+";\n        }\n      }  \n      setOutput(result);\n    }\n    "},va=1.7580993408473768,ma=1.0507009873554805,ga=function(t,e){this.variableNames=["A"],this.outputShape=t,this.userCode="\n      float unaryOperation(float x) {\n        "+e+"\n      }\n\n      void main() {\n        float x = getAAtOutCoords();\n        float y = unaryOperation(x);\n\n        setOutput(y);\n      }\n    "},ya="if (isnan(x)) return x;",xa=ya+"\n  return (x < 0.0) ? 0.0 : x;\n",ba="return exp(x);",wa="\n  vec4 result = x * vec4(greaterThanEqual(x, vec4(0.0)));\n  bvec4 isNaN = isnan(x);\n\n  result.r = isNaN.r ? x.r : result.r;\n  result.g = isNaN.g ? x.g : result.g;\n  result.b = isNaN.b ? x.b : result.b;\n  result.a = isNaN.a ? x.a : result.a;\n\n  return result;\n",Ca=function(t,e){this.variableNames=["A"],this.usesPackedTextures=!0,this.outputShape=t,this.userCode="\n      vec4 unaryOperation(vec4 x) {\n        "+e+"\n      }\n\n      void main() {\n        vec4 x = getAAtOutCoords();\n        vec4 y = unaryOperation(x);\n\n        setOutput(y);\n      }\n    "},Ea=function(t){this.variableNames=["A"],this.usesPackedTextures=!0,this.outputShape=t;var e=t.length,n=ao("rc",e),r=xo(e),o=function(t,e){if(1===t)return"rc";for(var n="",r=0;r<t;r++)n+=e[r],r<t-1&&(n+=",");return n}(e,n),i=n.slice(-2),a=e<=1?"rc":"vec2("+i.join(",")+")";this.userCode="\n      void main() {\n        "+r+" rc = getOutputCoords();\n        vec4 packedInput = getA("+o+");\n\n        setOutput(getChannel(packedInput, "+a+"));\n      }\n    "},_a={},Ia=600,Sa=function(){function t(t){if(this.gpgpu=t,this.pendingRead=new WeakMap,this.pendingDisposal=new WeakSet,this.dataRefCount=new WeakMap,this.numBytesInGPU=0,this.uploadWaitMs=0,this.downloadWaitMs=0,this.warnedAboutMemory=!1,this.disposed=!1,!f.getBool("HAS_WEBGL"))throw new Error("WebGL is not supported on this device");if(null==t){var e=Wt(f.getNumber("WEBGL_VERSION"));this.binaryCache=(n=f.getNumber("WEBGL_VERSION"))in _a?_a[n]:(_a[n]={},_a[n]),this.gpgpu=new Fi(e),this.canvas=e.canvas,this.gpgpuCreatedLocally=!0}else this.binaryCache={},this.gpgpuCreatedLocally=!1,this.canvas=t.gl.canvas;var n;this.textureManager=new ca(this.gpgpu),this.numMBBeforeWarning=null==f.global.screen?1024:f.global.screen.height*f.global.screen.width*window.devicePixelRatio*Ia/1024/1024,this.texData=new Rr(this,Mt)}return t.prototype.register=function(t,e,n){if(this.texData.has(t))throw new Error("Data buffer is already registered");this.texData.set(t,{shape:e,dtype:n})},t.prototype.fromPixels=function(t,e){if(null==t)throw new Error("pixels passed to tf.browser.fromPixels() can not be null");var n=[t.height,t.width],r=[t.height,t.width,e];if(f.getBool("IS_BROWSER")){if(!(t instanceof HTMLVideoElement||t instanceof HTMLImageElement||t instanceof HTMLCanvasElement||t instanceof ImageData||t.data instanceof Uint8Array))throw new Error("pixels passed to tf.browser.fromPixels() must be either an HTMLVideoElement, HTMLImageElement, HTMLCanvasElement, ImageData or {data: Uint32Array, width: number, height: number}, but was "+t.constructor.name);if(t instanceof HTMLVideoElement){if(null==this.fromPixels2DContext){if("complete"!==document.readyState)throw new Error("The DOM is not ready yet. Please call tf.browser.fromPixels() once the DOM is ready. One way to do that is to add an event listener for `DOMContentLoaded` on the document object");this.fromPixels2DContext=document.createElement("canvas").getContext("2d")}this.fromPixels2DContext.canvas.width=t.width,this.fromPixels2DContext.canvas.height=t.height,this.fromPixels2DContext.drawImage(t,0,0,t.width,t.height),t=this.fromPixels2DContext.canvas}}var o,i,a=this.makeTensorHandle(n,"int32");if(this.texData.get(a.dataId).usage=Yo.PIXELS,this.gpgpu.uploadPixelDataToTexture(this.getTexture(a.dataId),t),f.getBool("WEBGL_PACK")){o=new ui(r);var s=this.makePackedTensor(o.outputShape,a.dtype);i=this.compileAndRun(o,[a],s)}else o=new si(r),i=this.compileAndRun(o,[a]);return this.disposeData(a.dataId),i},t.prototype.makeTensorHandle=function(t,e){var n={};return this.register(n,t,e),{dataId:n,shape:t,dtype:e}},t.prototype.write=function(t,e){if(null==e)throw new Error("MathBackendWebGL.write(): values can not be null");if(f.getBool("DEBUG"))for(var n=0;n<e.length;n++){var r=e[n];if(!Gt(r))throw Error("The value "+r+" cannot be represented on this device.")}var o=this.texData.get(t);if("complex64"===o.dtype)throw new Error("Cannot write to a complex64 dtype. Please use tf.complex(real, imag).");this.releaseGPUData(t),o.usage=Yo.UPLOAD,o.values=e},t.prototype.readSync=function(t){var e=this.texData.get(t),n=e.values,r=e.dtype,o=e.complexTensors,i=e.slice,a=e.shape;if(null!=i){var s=new ga(a,"return x;"),u=this.compileAndRun(s,[{dataId:t,shape:a,dtype:r}]),c=this.readSync(u.dataId);return u.dispose(),c}if(null!=n)return this.convertAndCacheOnCPU(t);if("string"===r)return n;var l,h,p=null!=this.activeTimers;return p&&(l=performance.now()),h="complex64"===r?qr(o.real.dataSync(),o.imag.dataSync()):this.getValuesFromTexture(t),p&&(this.downloadWaitMs+=performance.now()-l),this.convertAndCacheOnCPU(t,h)},t.prototype.read=function(t){return c(this,void 0,void 0,function(){var e,n,r,o,i,a,s,u,c,h,p,d,v,m,g,y,x,b,w,C,E;return l(this,function(l){switch(l.label){case 0:if(this.pendingRead.has(t))return n=this.pendingRead.get(t),[2,new Promise(function(t){return n.push(t)})];if(r=this.texData.get(t),o=r.values,i=r.shape,a=r.slice,s=r.dtype,u=r.complexTensors,null!=a)return c=new ga(i,"return x;"),h=this.compileAndRun(c,[{dataId:t,shape:i,dtype:s}]),p=this.read(h.dataId),h.dispose(),[2,p];if(null!=o)return[2,this.convertAndCacheOnCPU(t)];if(!f.getBool("WEBGL_DOWNLOAD_FLOAT_ENABLED")&&2===f.getNumber("WEBGL_VERSION"))throw new Error("tensor.data() with WEBGL_DOWNLOAD_FLOAT_ENABLED=false and WEBGL_VERSION=2 not yet supported.");return d=null,"complex64"!==s&&f.get("WEBGL_BUFFER_SUPPORTED")&&(v=this.decode(t),t=v.dataId,m=this.texData.get(v.dataId),d=(e=this.gpgpu).createBufferFromTexture.apply(e,[m.texture].concat(pi(i)))),this.pendingRead.set(t,[]),"complex64"===s?[3,2]:[4,this.gpgpu.createAndWaitForFence()];case 1:l.sent(),l.label=2;case 2:return"complex64"!==s?[3,4]:[4,Promise.all([u.real.data(),u.imag.data()])];case 3:return y=l.sent(),x=y[0],b=y[1],g=qr(x,b),[3,5];case 4:null==d?g=this.getValuesFromTexture(t):(w=_(i),g=this.gpgpu.downloadFloat32MatrixFromBuffer(d,w),this.disposeData(t)),l.label=5;case 5:return C=this.convertAndCacheOnCPU(t,g),E=this.pendingRead.get(t),this.pendingRead.delete(t),E.forEach(function(t){return t(C)}),this.pendingDisposal.has(t)&&(this.pendingDisposal.delete(t),this.disposeData(t)),[2,C]}})})},t.prototype.getValuesFromTexture=function(t){var e,n=this,r=this.texData.get(t),o=r.shape,i=r.dtype,a=r.isPacked,s=_(o);if(f.getBool("WEBGL_DOWNLOAD_FLOAT_ENABLED")){var u=this.decode(t),c=this.texData.get(u.dataId),l=(e=this.gpgpu).downloadMatrixFromPackedTexture.apply(e,[c.texture].concat(pi(o))).subarray(0,s);return this.disposeData(u.dataId),l}var h=f.getBool("WEBGL_PACK")&&!0===a,p=h?ye(o):o,d=this.makeTensorHandle(p,"float32");d.size=_(o),this.texData.get(d.dataId).usage=Yo.DOWNLOAD;var v=Fe(function(){var e=h?new ni(p):new ei(p);return n.compileAndRun(e,[{shape:p,dtype:i,dataId:t}],d,null)}),m=this.texData.get(v.dataId),g=this.gpgpu.downloadByteEncodedFloatMatrixFromOutputTexture(m.texture,m.texShape[0],m.texShape[1]).subarray(0,s);return this.disposeData(d.dataId),g},t.prototype.time=function(t){return c(this,void 0,void 0,function(){var e,n,r,o,i,a,s;return l(this,function(u){switch(u.label){case 0:return e=this.activeTimers,n=[],r=!1,null==this.programTimersStack?(this.programTimersStack=n,r=!0):this.activeTimers.push(n),this.activeTimers=n,t(),o=E(this.activeTimers.map(function(t){return t.query})).filter(function(t){return null!=t}),i=E(this.activeTimers.map(function(t){return t.name})).filter(function(t){return null!=t}),this.activeTimers=e,r&&(this.programTimersStack=null),[4,Promise.all(o)];case 1:return a=u.sent(),s={uploadWaitMs:this.uploadWaitMs,downloadWaitMs:this.downloadWaitMs,kernelMs:x(a),getExtraProfileInfo:function(){return a.map(function(t,e){return{name:i[e],ms:t}}).map(function(t){return t.name+": "+t.ms}).join(", ")},wallMs:null},this.uploadWaitMs=0,this.downloadWaitMs=0,[2,s]}})})},t.prototype.memory=function(){return{unreliable:!1,numBytesInGPU:this.numBytesInGPU}},t.prototype.startTimer=function(){return f.getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")>0?this.gpgpu.beginQuery():{startMs:performance.now(),endMs:null}},t.prototype.endTimer=function(t){return f.getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")>0?(this.gpgpu.endQuery(),t):(t.endMs=performance.now(),t)},t.prototype.getQueryTime=function(t){return c(this,void 0,void 0,function(){var e;return l(this,function(n){return f.getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")>0?[2,this.gpgpu.waitForQueryAndGetTime(t)]:[2,(e=t).endMs-e.startMs]})})},t.prototype.disposeData=function(t){if(!this.pendingDisposal.has(t))if(this.pendingRead.has(t))this.pendingDisposal.add(t);else if(this.texData.has(t)){this.releaseGPUData(t);var e=this.texData.get(t).complexTensors;null!=e&&(e.real.dispose(),e.imag.dispose()),this.texData.delete(t)}},t.prototype.releaseGPUData=function(t){var e=this.texData.get(t),n=e.texture,r=e.dtype,o=e.texShape,i=e.usage,a=e.isPacked,s=e.slice,u=s&&s.origDataId||t,c=this.dataRefCount.get(u);c>1?this.dataRefCount.set(u,c-1):(this.dataRefCount.delete(u),null!=n&&(this.numBytesInGPU-=this.computeBytes(o,r),this.textureManager.releaseTexture(n,o,i,a)));var l=this.texData.get(t);l.texture=null,l.texShape=null,l.isPacked=!1,l.slice=null},t.prototype.getTexture=function(t){return this.uploadToGPU(t),this.texData.get(t).texture},t.prototype.getCPUBackend=function(){return f.getBool("WEBGL_CPU_FORWARD")?(null==this.cpuBackend&&(this.cpuBackend=Mt.findBackend("cpu")),this.cpuBackend):null},t.prototype.shouldExecuteOnCPU=function(t,e){var n=this;return void 0===e&&(e=128),null!=this.getCPUBackend()&&t.every(function(t){return null==n.texData.get(t.dataId).texture&&t.size<e})},t.prototype.getGPGPUContext=function(){return this.gpgpu},t.prototype.complex=function(t,e){var n=this.makeOutputArray(t.shape,"complex64");return this.texData.get(n.dataId).complexTensors={real:Mt.keep(t.clone()),imag:Mt.keep(e.clone())},n},t.prototype.real=function(t){return this.texData.get(t.dataId).complexTensors.real.clone()},t.prototype.imag=function(t){return this.texData.get(t.dataId).complexTensors.imag.clone()},t.prototype.slice=function(t,e,n){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.slice(t,e,n);if(0===_(n))return en([],n,t.dtype);var r=this.texData.get(t.dataId).isPacked,o=br(t.shape,e,n);if(r||!o){var i=f.getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new sa(n):new ia(n),a=i.getCustomSetupFunc(e);return this.compileAndRun(i,[t],null,a)}return this.uploadToGPU(t.dataId),this.shallowSlice(t,e,n)},t.prototype.shallowSlice=function(t,e,n){var r=this.texData.get(t.dataId),o=mt.make(n,{},t.dtype,this),i=this.texData.get(o.dataId);Object.assign(i,r),i.shape=n,i.dtype=t.dtype;var a=wr(e,t.strides);r.slice&&(a+=r.slice.flatOffset),i.slice={flatOffset:a,origDataId:r.slice&&r.slice.origDataId||t.dataId};var s=this.dataRefCount.get(i.slice.origDataId)||1;return this.dataRefCount.set(i.slice.origDataId,s+1),o},t.prototype.stridedSlice=function(t,e,n,r,o,i,a,s,u){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.stridedSlice(t,e,n,r,o,i,a,s,u);var c=gr(t.shape,e,n,r,o,i,a,s,u),l=c[0],h=c[1],p=c[2],f=h.filter(function(t,e){return-1===p.indexOf(e)});if(f.some(function(t){return 0===t}))return en([],f);var d=new ua(l,r,h,p);return this.compileAndRun(d,[t])},t.prototype.reverse=function(t,e){var n=f.getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new ea(t.shape,e):new ta(t.shape,e);return this.compileAndRun(n,[t])},t.prototype.concat=function(t,e){if(this.shouldExecuteOnCPU(t))return this.cpuBackend.concat(t,e);if(1===t.length)return t[0];if(t.length>f.getNumber("WEBGL_MAX_TEXTURES_IN_SHADER")){var n=Math.floor(t.length/2),r=this.concat(t.slice(0,n),e),o=this.concat(t.slice(n),e);return this.concat([r,o],e)}if(f.getBool("WEBGL_PACK_ARRAY_OPERATIONS")&&t[0].rank>1){var i=new Po(t.map(function(t){return t.shape}),e);return this.compileAndRun(i,t)}var a=Ye(t.map(function(t){return t.shape}),e),s=t.map(function(t){return t.as2D(-1,_(t.shape.slice(e)))}),u=new Oo(s.map(function(t){return t.shape}));return this.compileAndRun(u,s).reshape(a)},t.prototype.neg=function(t){var e=new ga(t.shape,"return -x;");return this.compileAndRun(e,[t])},t.prototype.batchMatMul=function(t,e,n,r){var o=n?t.shape[2]:t.shape[1],i=r?e.shape[1]:e.shape[2],a=n?t.shape[1]:t.shape[2],s=t.shape[0];if((1===o||1===i)&&a>1e3){n&&(t=t.transpose([0,2,1])),r&&(e=e.transpose([0,2,1]));var u=1===i?t:t.as3D(s,a,1),c=1===i?2:1,l=1===i?e.as3D(s,1,a):e;return this.multiply(u,l).sum(c,!0)}var h=It(t.dtype,e.dtype),p=new zi(t.shape,[s,o,i],n,r),f=this.makePackedTensor(p.outputShape,h);return this.compileAndRun(p,[t,e],f)},t.prototype.fusedBatchMatMul=function(t,e,n,r,o,i){var a=n?t.shape[2]:t.shape[1],s=r?e.shape[1]:e.shape[2],u=t.shape[0],c=It(t.dtype,e.dtype),l=new zi(t.shape,[u,a,s],n,r,!!o,i?function(t,e){if(void 0===e&&(e=!1),"linear"===i)return"return x;";if("relu"===i)return e?wa:xa;throw new Error("Activation "+i+" has not been implemented for the WebGL backend.")}(0,!0):null),h=this.makePackedTensor(l.outputShape,c),p=[t,e];return o&&p.push(o),this.compileAndRun(l,p,h)},t.prototype.multiply=function(t,e){if("complex64"===t.dtype){var n=this.texData.get(t.dataId),r=this.texData.get(e.dataId),o=new So("return areal * breal - aimag * bimag;",t.shape,e.shape),i=new So("return areal * bimag + aimag * breal;",t.shape,e.shape),a=[this.makeComplexComponentTensorHandle(t,n.complexTensors.real),this.makeComplexComponentTensorHandle(t,n.complexTensors.imag),this.makeComplexComponentTensorHandle(e,r.complexTensors.real),this.makeComplexComponentTensorHandle(e,r.complexTensors.imag)],s=this.compileAndRun(o,a),u=this.compileAndRun(i,a),c=this.complex(s,u);return s.dispose(),u.dispose(),c}if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.multiply(t,e);if(f.getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,ko,t.dtype);var l=new Ao(ko,t.shape,e.shape),h=this.makeOutputArray(l.outputShape,t.dtype);return this.compileAndRun(l,[t,e],h)},t.prototype.batchNormalization=function(t,e,n,r,o,i){var a=[t,e,n],s=null;null!=i&&(s=i.shape,a.push(i));var u=null;if(null!=o&&(u=o.shape,a.push(o)),f.getBool("WEBGL_PACK_NORMALIZATION")){var c=new Io(t.shape,e.shape,n.shape,s,u,r);return this.compileAndRun(c,a)}var l=new _o(t.shape,e.shape,n.shape,s,u,r);return this.compileAndRun(l,a)},t.prototype.localResponseNormalization4D=function(t,e,n,r,o){var i=f.getBool("WEBGL_PACK_NORMALIZATION")?new Li(t.shape,e,n,r,o):new Pi(t.shape,e,n,r,o);return this.compileAndRun(i,[t])},t.prototype.LRNGrad=function(t,e,n,r,o,i,a){var s=new Bi(e.shape,r,o,i,a);return this.compileAndRun(s,[e,n,t])},t.prototype.tile=function(t,e){if("string"===t.dtype)return Zr(On(t.shape,t.dtype,this.readSync(t.dataId)),e);var n=new pa(t.shape,e);return this.compileAndRun(n,[t])},t.prototype.pad=function(t,e,n){var r=f.getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new Hi(t.shape,e,n):new ji(t.shape,e,n);return this.compileAndRun(r,[t])},t.prototype.transpose=function(t,e){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.transpose(t,e);var n=f.getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new da(t.shape,e):new fa(t.shape,e);return this.compileAndRun(n,[t])},t.prototype.gather=function(t,e,n){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.gather(t,e,n);var r=new ci(t.shape,e.size,n);return this.compileAndRun(r,[t,e])},t.prototype.batchToSpaceND=function(t,e,n){b(t.rank<=4,function(){return"batchToSpaceND for rank > 4 with a WebGL backend not implemented yet"});var r=e.reduce(function(t,e){return t*e}),o=ur(t.shape,e,r),i=cr(o.length,e.length),a=lr(t.shape,e,r),s=hr(n,e.length),u=pr(a,n,e.length);return t.reshape(o).transpose(i).reshape(a).slice(s,u)},t.prototype.spaceToBatchND=function(t,e,n){b(t.rank<=4,function(){return"spaceToBatchND for rank > 4 with a WebGL backend not implemented yet"});var r=e.reduce(function(t,e){return t*e}),o=[[0,0]];o.push.apply(o,n);for(var i=1+e.length;i<t.shape.length;++i)o.push([0,0]);var a=t.pad(o),s=ur(a.shape,e,r,!1),u=cr(s.length,e.length,!1),c=lr(a.shape,e,r,!1);return a.reshape(s).transpose(u).reshape(c)},t.prototype.reduce=function(t,e,n){var r=t.shape[0],o=t.shape[1],i=vr(o),a=new $i({windowSize:i,inSize:o,batchSize:r},e),s=a.outputShape,u=s[0],c=s[1],l=this.makeOutputArray([u,c],n);return this.compileAndRun(a,[t],l),1===l.shape[1]?l:this.reduce(l,e,n)},t.prototype.argReduce=function(t,e,n){void 0===n&&(n=null);var r=t.shape[0],o=t.shape[1];null!=n&&(r=n.shape[0],o=n.shape[1]);var i=vr(o),a=new oo({windowSize:i,inSize:o,batchSize:r},e,null==n),s=a.outputShape,u=s[0],c=s[1],l=this.makeOutputArray([u,c],"int32"),h=[t];return null!=n&&h.push(n),this.compileAndRun(a,h,l),1===l.shape[1]?l:this.argReduce(t,e,l)},t.prototype.argReducePacked=function(t,e,n){void 0===n&&(n=null);var r=null!=n?n.shape:t.shape,o=vr(r[r.length-1]),i=new Co(r,o,e,null==n),a=this.makePackedTensor(i.outputShape,"int32"),s=null==n?[t]:[t,n];return this.compileAndRun(i,s,a),a.rank===t.rank?this.argReducePacked(t,e,a):a},t.prototype.sum=function(t,e){He("sum",e,t.rank);var n=Ge(t.shape,e),r=n[0],o=_(n[1]),i=t.as2D(-1,o),a=St(t.dtype);return this.reduce(i,"sum",a).reshape(r)},t.prototype.prod=function(t,e){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.prod(t,e);var n=Ge(t.shape,e),r=n[0],o=_(n[1]),i=t.as2D(-1,o),a=St(t.dtype);return this.reduce(i,"prod",a).reshape(r)},t.prototype.unsortedSegmentSum=function(t,e,n){var r=0,o=qe([r],t.rank),i=t;null!=o&&(i=t.transpose(o),r=Ke(1,t.rank)[0]);var a=function(t,e,n){for(var r=[],o=t.length,i=0;i<o;i++)i!==e?r.push(t[i]):r.push(n);return r}(i.shape,r,n),s=_([i.shape[r]]),u=i.as2D(-1,s),c=St(t.dtype),l=this.segOpCompute(u,"unsortedSegmentSum",e,c,n).reshape(a);return null!=o&&(l=l.transpose($e(o))),l},t.prototype.segOpCompute=function(t,e,n,r,o){var i=t.shape[0],a=t.shape[1],s=function(t,e){var n,r=!1;for(t<=dr?(n=t,r=!0):n=K(t,Math.floor(Math.sqrt(t)));!r;)n>e||n===t?r=!0:n=K(t,n+1);return n}(a,o),u=new ra({windowSize:s,inSize:a,batchSize:i,numSegments:o},e),c=u.outputShape,l=c[0],h=c[1],p=this.makeOutputArray([l,h],r);return this.compileAndRun(u,[t,n],p),p.shape[1]===o?p:(n=vn(0,o).tile([a/s]),this.segOpCompute(p,e,n,r,o))},t.prototype.argMinMaxReduce=function(t,e,n){var r=[e];if(He("arg"+n.charAt(0).toUpperCase()+n.slice(1),r,t.rank),!f.getBool("WEBGL_PACK_REDUCE")||t.rank<=2){var o=Ge(t.shape,r),i=o[0],a=_(o[1]),s=t.as2D(-1,a);return this.argReduce(s,n).reshape(i)}return this.argReducePacked(t,n)},t.prototype.argMin=function(t,e){return this.argMinMaxReduce(t,e,"min")},t.prototype.argMax=function(t,e){return this.argMinMaxReduce(t,e,"max")},t.prototype.cumsum=function(t,e,n,r){if(e!==t.rank-1)throw new Error("WebGL cumsum shader expects an inner-most axis="+(t.rank-1)+" but got axis="+e);var o=new Ko(t.shape,n,r);return this.compileAndRun(o,[t])},t.prototype.equal=function(t,e){if(f.getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(equal(a, b));\n","bool");var n=new Ao("return float(a == b);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},t.prototype.notEqual=function(t,e){if(f.getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(notEqual(a, b));\n","bool");var n=new Ao("return float(a != b);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},t.prototype.less=function(t,e){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.less(t,e);if(f.getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(lessThan(a, b));\n","bool");var n=new Ao("return float(a < b);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},t.prototype.lessEqual=function(t,e){if(f.getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(lessThanEqual(a, b));\n","bool");var n=new Ao("return float(a <= b);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},t.prototype.greater=function(t,e){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.greater(t,e);if(f.getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(greaterThan(a, b));\n","bool");var n=new Ao("return float(a > b);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},t.prototype.greaterEqual=function(t,e){if(f.getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(greaterThanEqual(a, b));\n","bool");var n=new Ao("return float(a >= b);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},t.prototype.logicalNot=function(t){var e=new ga(t.shape,"return float(!(x >= 1.0));");return this.compileAndRun(e,[t])},t.prototype.logicalAnd=function(t,e){if(f.getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(\n    vec4(greaterThanEqual(a, vec4(1.0))) *\n    vec4(greaterThanEqual(b, vec4(1.0))));\n","bool");var n=new Ao("return float(a >= 1.0 && b >= 1.0);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},t.prototype.logicalOr=function(t,e){if(f.getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return min(\n    vec4(greaterThanEqual(a, vec4(1.0))) +\n    vec4(greaterThanEqual(b, vec4(1.0))),\n    vec4(1.0));\n","bool");var n=new Ao("return float(a >= 1.0 || b >= 1.0);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},t.prototype.select=function(t,e,n){var r=new oa(t.rank,e.shape,e.rank),o=this.makeOutputArray(r.outputShape,It(e.dtype,n.dtype));return this.compileAndRun(r,[t,e,n],o)},t.prototype.where=function(t){Pe("tf.where() in webgl locks the UI thread. Call tf.whereAsync() instead");var e=t.dataSync();return eo(t.shape,e)},t.prototype.topk=function(t,e,n){return to(t.dataSync(),t.shape,t.dtype,e)},t.prototype.min=function(t,e){He("min",e,t.rank);var n=Ge(t.shape,e),r=n[0],o=_(n[1]),i=t.as2D(-1,o);return this.reduce(i,"min",i.dtype).reshape(r)},t.prototype.minimum=function(t,e){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.minimum(t,e);var n=f.getBool("WEBGL_PACK_BINARY_OPERATIONS")?new To("\n  vec4 result = vec4(min(a, b));\n  vec4 isNaN = min(vec4(isnan(a)) + vec4(isnan(b)), vec4(1.0));\n  \n  result.r = isNaN.r > 0. ? NAN : result.r;\n  result.g = isNaN.g > 0. ? NAN : result.g;\n  result.b = isNaN.b > 0. ? NAN : result.b;\n  result.a = isNaN.a > 0. ? NAN : result.a;\n\n  return result;\n",t.shape,e.shape):new Ao("\n  if (isnan(a)) return a;\n  if (isnan(b)) return b;\n\n  return min(a, b);\n",t.shape,e.shape);return this.compileAndRun(n,[t,e])},t.prototype.mod=function(t,e){var n=f.getBool("WEBGL_PACK_BINARY_OPERATIONS")?new To("\n  vec4 result = mod(a, b);\n  vec4 isNaN = vec4(equal(b, vec4(0.0)));\n  \n  result.r = isNaN.r > 0. ? NAN : result.r;\n  result.g = isNaN.g > 0. ? NAN : result.g;\n  result.b = isNaN.b > 0. ? NAN : result.b;\n  result.a = isNaN.a > 0. ? NAN : result.a;\n\n  return result;\n",t.shape,e.shape):new Ao("if (b == 0.0) return NAN;\n  return mod(a, b);",t.shape,e.shape);return this.compileAndRun(n,[t,e])},t.prototype.max=function(t,e){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.max(t,e);He("max",e,t.rank);var n=Ge(t.shape,e),r=n[0],o=_(n[1]),i=t.as2D(-1,o);return this.reduce(i,"max",i.dtype).reshape(r)},t.prototype.maximum=function(t,e){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.maximum(t,e);var n=f.getBool("WEBGL_PACK_BINARY_OPERATIONS")?new To("\n  vec4 result = vec4(max(a, b));\n  vec4 isNaN = min(vec4(isnan(a)) + vec4(isnan(b)), vec4(1.0));\n  \n  result.r = isNaN.r > 0. ? NAN : result.r;\n  result.g = isNaN.g > 0. ? NAN : result.g;\n  result.b = isNaN.b > 0. ? NAN : result.b;\n  result.a = isNaN.a > 0. ? NAN : result.a;\n\n  return result;\n",t.shape,e.shape):new Ao("\n  if (isnan(a)) return a;\n  if (isnan(b)) return b;\n\n  return max(a, b);\n",t.shape,e.shape);return this.compileAndRun(n,[t,e])},t.prototype.all=function(t,e){He("all",e,t.rank);var n=Ge(t.shape,e),r=n[0],o=_(n[1]),i=t.as2D(-1,o);return this.reduce(i,"all",i.dtype).reshape(r)},t.prototype.any=function(t,e){He("any",e,t.rank);var n=Ge(t.shape,e),r=n[0],o=_(n[1]),i=t.as2D(-1,o);return this.reduce(i,"any",i.dtype).reshape(r)},t.prototype.squaredDifference=function(t,e){var n=f.getBool("WEBGL_PACK_BINARY_OPERATIONS")?new To("return (a - b) * (a - b);",t.shape,e.shape):new Ao("return (a - b) * (a - b);",t.shape,e.shape);return this.compileAndRun(n,[t,e])},t.prototype.realDivide=function(t,e){if(f.getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  // vec4 one = vec4(equal(a, b));\n  // return one + (vec4(1.0) - one) * a / b;\n  vec4 result = a / b;\n  if(b.x == 0.0) {\n    result.x = NAN;\n  } else if(a.x == b.x) {\n    result.x = 1.;\n  }\n  if(b.y == 0.0) {\n    result.y = NAN;\n  } else if(a.y == b.y) {\n    result.y = 1.;\n  }\n  if(b.z == 0.0) {\n    result.z = NAN;\n  } else if(a.z == b.z) {\n    result.z = 1.;\n  }\n  if(b.w == 0.0) {\n    result.w = NAN;\n  } else if(a.w == b.w) {\n    result.w = 1.;\n  }\n  \n  return result;\n","float32",!0);var n=new Ao("\nif (b == 0.0) {\n  return NAN;\n} \nif (a == b) {\n  return 1.0;\n};\nreturn a / b;",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"float32");return this.compileAndRun(n,[t,e],r)},t.prototype.floorDiv=function(t,e){if(f.getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  ivec4 ia = round(a);\n  ivec4 ib = round(b);\n  bvec4 cond = notEqual(ib, ivec4(0));\n  ivec4 result = ivec4(0);\n  vec4 s = sign(a) * sign(b);\n\n  // Windows (D3D) wants guaranteed non-zero int division at compile-time.\n  if (cond[0]) {\n    result[0] = idiv(ia[0], ib[0], s[0]);\n  }\n  if (cond[1]) {\n    result[1] = idiv(ia[1], ib[1], s[1]);\n  }\n  if (cond[2]) {\n    result[2] = idiv(ia[2], ib[2], s[2]);\n  }\n  if (cond[3]) {\n    result[3] = idiv(ia[3], ib[3], s[3]);\n  }\n  return vec4(result);\n","int32");var n=new Ao("\n  float s = sign(a) * sign(b);\n  int ia = round(a);\n  int ib = round(b);\n  if (ib != 0) {\n    // Windows (D3D) wants guaranteed non-zero int division at compile-time.\n    return float(idiv(ia, ib, s));\n  } else {\n    return NAN;\n  }\n",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"int32");return this.compileAndRun(n,[t,e],r)},t.prototype.add=function(t,e){if("complex64"===t.dtype&&"complex64"===e.dtype)return this.complexSeparableBinaryOp(t,e,Ro);if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.add(t,e);var n=It(t.dtype,e.dtype);if(f.getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,Ro,n);var r=new Ao(Ro,t.shape,e.shape),o=this.makeOutputArray(r.outputShape,n);return this.compileAndRun(r,[t,e],o)},t.prototype.packedBinaryOp=function(t,e,n,r,o){void 0===o&&(o=!1);var i=new To(n,t.shape,e.shape,o),a=this.makePackedTensor(i.outputShape,r);return this.compileAndRun(i,[t,e],a)},t.prototype.complexSeparableBinaryOp=function(t,e,n){var r=this,o=this.texData.get(t.dataId),i=this.texData.get(e.dataId),a=[[o.complexTensors.real,i.complexTensors.real],[o.complexTensors.imag,i.complexTensors.imag]].map(function(o){var i=o[0],a=o[1],s=r.makeComplexComponentTensorHandle(t,i),u=r.makeComplexComponentTensorHandle(e,a),c=new Ao(n,t.shape,e.shape),l=r.makeOutputArray(c.outputShape,It(i.dtype,a.dtype));return r.compileAndRun(c,[s,u],l)}),s=a[0],u=a[1],c=this.complex(s,u);return s.dispose(),u.dispose(),c},t.prototype.makeComplexComponentTensorHandle=function(t,e){return{dataId:e.dataId,dtype:e.dtype,shape:t.shape}},t.prototype.addN=function(t){if(1===t.length)return t[0];if(t.length>f.get("WEBGL_MAX_TEXTURES_IN_SHADER")){var 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NAN : result.r;\n  result.g = isNaN.g == 1.0 ? NAN : result.g;\n  result.b = isNaN.b == 1.0 ? NAN : result.b;\n  result.a = isNaN.a == 1.0 ? NAN : result.a;\n\n  return result;\n"):new ga(t.shape,"if (x < 0.0) return NAN;\n  return log(x);"),this.compileAndRun(e,[t])},t.prototype.log1p=function(t){var e=new ga(t.shape,"return log(1.0 + x);");return this.compileAndRun(e,[t])},t.prototype.sqrt=function(t){var e=new ga(t.shape,"return sqrt(x);");return this.compileAndRun(e,[t])},t.prototype.rsqrt=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.rsqrt(t);var e=new ga(t.shape,"return inversesqrt(x);");return this.compileAndRun(e,[t])},t.prototype.square=function(t){var e=new ga(t.shape,"return x * x;");return this.compileAndRun(e,[t])},t.prototype.reciprocal=function(t){var e=new ga(t.shape,"return 1.0 / x;");return this.compileAndRun(e,[t])},t.prototype.relu=function(t){var e;return e=f.getBool("WEBGL_PACK")?new Ca(t.shape,wa):new ga(t.shape,xa),this.compileAndRun(e,[t])},t.prototype.prelu=function(t,e){var n=f.getBool("WEBGL_PACK_BINARY_OPERATIONS")?new To("\n  vec4 aLessThanZero = vec4(lessThan(a, vec4(0.)));\n  return (aLessThanZero * (b * a)) + ((vec4(1.0) - aLessThanZero) * a);\n",t.shape,e.shape):new Ao("return (a < 0.) ? b * a : a;",t.shape,e.shape);return this.compileAndRun(n,[t,e])},t.prototype.elu=function(t){var e=new ga(t.shape,"return (x >= 0.0) ? x : (exp(x) - 1.0);");return this.compileAndRun(e,[t])},t.prototype.eluDer=function(t,e){var n=f.getBool("WEBGL_PACK_BINARY_OPERATIONS")?new To("\n  vec4 bGTEZero = vec4(greaterThanEqual(b, vec4(0.)));\n  return (bGTEZero * a) + ((vec4(1.0) - bGTEZero) * (a * (b + vec4(1.0))));\n",t.shape,e.shape):new Ao("return (b >= 1.0) ? a : a * (b + 1.0);",t.shape,e.shape);return this.compileAndRun(n,[t,e])},t.prototype.selu=function(t){var e=new ga(t.shape,"\n  // Stable and Attracting Fixed Point (0, 1) for Normalized Weights.\n  // see: https://arxiv.org/abs/1706.02515\n  float scaleAlpha = 1.7580993408473768;\n  float scale = 1.0507009873554805;\n  return (x >= 0.0) ? scale * x : scaleAlpha * (exp(x) - 1.0);\n");return this.compileAndRun(e,[t])},t.prototype.int=function(t){var e=new ga(t.shape,"return float(int(x));"),n=this.makeOutputArray(e.outputShape,"int32");return this.compileAndRun(e,[t],n)},t.prototype.clip=function(t,e,n){var r,o=(r=f.getBool("WEBGL_PACK_CLIP")?new Fo(t.shape):new Do(t.shape)).getCustomSetupFunc(e,n);return this.compileAndRun(r,[t],null,o)},t.prototype.abs=function(t){var e=new ga(t.shape,"return abs(x);");return this.compileAndRun(e,[t])},t.prototype.complexAbs=function(t){var e=this.texData.get(t.dataId),n=new Mo(t.shape),r=[this.makeComplexComponentTensorHandle(t,e.complexTensors.real),this.makeComplexComponentTensorHandle(t,e.complexTensors.imag)];return this.compileAndRun(n,r)},t.prototype.sigmoid=function(t){var e=new ga(t.shape,"return 1.0 / (1.0 + exp(-1.0 * x));");return this.compileAndRun(e,[t])},t.prototype.softplus=function(t){var e=new ga(t.shape,"\n  float epsilon = 1.1920928955078125e-7;\n  float threshold = log(epsilon) + 2.0;\n\n  bool too_large = x > -threshold;\n  bool too_small = x < threshold;\n\n  float result;\n  float exp_x = exp(x);\n\n  if (too_large){\n    result = x;\n  }\n  else if (too_small){\n    result = exp_x;\n  }\n  else{\n    result = log(exp_x + 1.0);\n  }\n  return result;\n");return this.compileAndRun(e,[t])},t.prototype.sin=function(t){var e=new ga(t.shape,"if (isnan(x)) return x;\n  return sin(x);\n");return this.compileAndRun(e,[t])},t.prototype.cos=function(t){var e=new ga(t.shape,"if (isnan(x)) return x;\n  return cos(x);\n");return this.compileAndRun(e,[t])},t.prototype.tan=function(t){var e=new ga(t.shape,"return tan(x);");return this.compileAndRun(e,[t])},t.prototype.asin=function(t){var e=new ga(t.shape,"return asin(x);");return this.compileAndRun(e,[t])},t.prototype.acos=function(t){var e=new ga(t.shape,"return acos(x);");return this.compileAndRun(e,[t])},t.prototype.atan=function(t){var e=new ga(t.shape,"if (isnan(x)) return x;\n  return atan(x);\n");return this.compileAndRun(e,[t])},t.prototype.atan2=function(t,e){var n=f.getBool("WEBGL_PACK_BINARY_OPERATIONS")?new To("\n  vec4 result = atan(a, b);\n  vec4 isNaN = min(vec4(isnan(a)) + vec4(isnan(b)), vec4(1.0));\n  \n  result.r = isNaN.r > 0. ? NAN : result.r;\n  result.g = isNaN.g > 0. ? NAN : result.g;\n  result.b = isNaN.b > 0. ? NAN : result.b;\n  result.a = isNaN.a > 0. ? NAN : result.a;\n\n  return result;\n",t.shape,e.shape):new Ao("\n  if (isnan(a)) return a;\n  if (isnan(b)) return b;\n\n  return atan(a, b);\n",t.shape,e.shape);return this.compileAndRun(n,[t,e])},t.prototype.sinh=function(t){var e=new ga(t.shape,"\n  float e2x = exp(x);\n  return (e2x - 1.0 / e2x) / 2.0;\n");return this.compileAndRun(e,[t])},t.prototype.cosh=function(t){var e=new ga(t.shape,"\n  float e2x = exp(-x);\n  return (e2x + 1.0 / e2x) / 2.0;\n");return this.compileAndRun(e,[t])},t.prototype.tanh=function(t){var e=new ga(t.shape,"\n  float e2x = exp(-2.0 * abs(x));\n  return sign(x) * (1.0 - e2x) / (1.0 + e2x);\n");return this.compileAndRun(e,[t])},t.prototype.asinh=function(t){var e=new ga(t.shape,"return log(x + sqrt(x * x + 1.0));");return this.compileAndRun(e,[t])},t.prototype.acosh=function(t){var e=new ga(t.shape,"if (isnan(x)) return x;\n  if (x < 1.0) return NAN;\n  return log(x + sqrt(x * x - 1.0));");return this.compileAndRun(e,[t])},t.prototype.atanh=function(t){var e=new ga(t.shape,"if (isnan(x)) return x;\n  if ((x < -1.0) || (x > 1.0)) return NAN;\n  return (log(1.0 + x) - log(1.0 - x)) / 2.0;");return this.compileAndRun(e,[t])},t.prototype.erf=function(t){var e=new ga(t.shape,'\n  // Error function is calculated approximately with elementary function.\n  // See "Handbook of Mathematical Functions with Formulas,\n  // Graphs, and Mathematical Tables", Abramowitz and Stegun.\n  float p = 0.3275911;\n  float a1 = 0.254829592;\n  float a2 = -0.284496736;\n  float a3 = 1.421413741;\n  float a4 = -1.453152027;\n  float a5 = 1.061405429;\n\n  float t = 1.0 / (1.0 + p * x);\n  return 1.0 - (((((a5*t + a4)*t) + a3)*t + a2)*t + a1)*t*exp(-x*x);\n');return this.compileAndRun(e,[t])},t.prototype.step=function(t,e){var n=new ga(t.shape,function(t){return void 0===t&&(t=0),ya+"\n    return x > 0.0 ? 1.0 : float("+t+");\n  "}(e));return this.compileAndRun(n,[t])},t.prototype.conv2dByMatMul=function(t,e,n){var r=t.shape,o=this.texData.get(t.dataId),i=n.inChannels,a=r[0]*r[1]*r[2],s=n.outChannels,u=(1===a||1===s)&&i>1e3,c=r[2]%2!=0&&!!o.isPacked;if(u||!f.getBool("WEBGL_LAZILY_UNPACK")||!f.getBool("WEBGL_PACK_BINARY_OPERATIONS")||!c){var l=this.reshape(t,[1,r[0]*r[1]*r[2],n.inChannels]),h=this.reshape(e,[1,n.inChannels,n.outChannels]);return this.reshape(this.batchMatMul(l,h,!1,!1),n.outShape)}var p=mt.make([1,r[0]*r[1]*(r[2]+1),n.inChannels],{dataId:t.dataId},t.dtype,this),d=o.shape;o.shape=o.shape.slice(),o.shape[o.shape.length-2]++,b(we(o.shape,p.shape),function(){return"packed reshape "+o.shape+" to "+p.shape+" isn't free"});var v=this.reshape(e,[1,n.inChannels,n.outChannels]),m=this.batchMatMul(p,v,!1,!1),g=this.texData.get(m.dataId);return b(g.isPacked,function(){return"batchMatMul result is expected to be packed"}),o.shape=d,g.shape=n.outShape,mt.make(n.outShape,{dataId:m.dataId},m.dtype,this)},t.prototype.conv2dWithIm2Row=function(t,e,n){var r=n.filterWidth,o=n.filterHeight,i=n.inChannels,a=n.outWidth,s=n.outHeight,u=r*o*i,c=s*a,l=[u,c],h=t.squeeze([0]),p=e.reshape([1,u,-1]),f=new Oi(l,h.shape,n),d=this.compileAndRun(f,[h]).reshape([1,l[0],l[1]]),v=new zi(d.shape,[1,c,n.outChannels],!0,!1);return this.compileAndRun(v,[d,p]).reshape([1,s,a,n.outChannels])},t.prototype.conv2d=function(t,e,n){if(1===n.filterHeight&&1===n.filterWidth&&1===n.dilationHeight&&1===n.dilationWidth&&1===n.strideHeight&&1===n.strideWidth&&("SAME"===n.padInfo.type||"VALID"===n.padInfo.type))return this.conv2dByMatMul(t,e,n);if(f.getBool("WEBGL_CONV_IM2COL")&&1===t.shape[0])return this.conv2dWithIm2Row(t,e,n);var r=new Go(n);return this.compileAndRun(r,[t,e])},t.prototype.conv2dDerInput=function(t,e,n){var r=new Lo(n);return this.compileAndRun(r,[t,e])},t.prototype.conv2dDerFilter=function(t,e,n){var r=new Bo(n);return this.compileAndRun(r,[t,e])},t.prototype.depthwiseConv2D=function(t,e,n){var r;return f.getBool("WEBGL_PACK_DEPTHWISECONV")&&n.strideWidth<=2&&n.outChannels/n.inChannels==1?(r=new qo(n),this.compileAndRun(r,[t,e],this.makePackedTensor(n.outShape,t.dtype))):(r=new Ho(n),this.compileAndRun(r,[t,e]))},t.prototype.depthwiseConv2DDerInput=function(t,e,n){var r=new Vo(n);return this.compileAndRun(r,[t,e])},t.prototype.depthwiseConv2DDerFilter=function(t,e,n){var r=new Uo(n);return this.compileAndRun(r,[t,e])},t.prototype.conv3d=function(t,e,n){var r=new jo(n);return this.compileAndRun(r,[t,e])},t.prototype.conv3dDerInput=function(t,e,n){var r=new zo(n);return this.compileAndRun(r,[t,e])},t.prototype.conv3dDerFilter=function(t,e,n){var r=new Wo(n);return this.compileAndRun(r,[t,e])},t.prototype.maxPool=function(t,e){var n=new qi(e,"max",!1),r=this.makeOutputArray(n.outputShape,t.dtype);return this.compileAndRun(n,[t],r)},t.prototype.avgPool=function(t,e){var n=new qi(e,"avg",!1),r=this.makeOutputArray(n.outputShape,"float32");return this.compileAndRun(n,[t],r)},t.prototype.maxPoolBackprop=function(t,e,n,r){var o=new qi(r,"max",!0),i=this.compileAndRun(o,[e]),a=new Wi(r),s=this.makeOutputArray(a.outputShape,e.dtype),u=this.compileAndRun(a,[t,i],s);return i.dispose(),u},t.prototype.avgPoolBackprop=function(t,e,n){var r=new Eo(n),o=this.makeOutputArray(r.outputShape,e.dtype);return this.compileAndRun(r,[t],o)},t.prototype.cast=function(t,e){return Vr(t,e,this)},t.prototype.unstack=function(t,e){for(var n=t.shape[e],r=new Array(t.rank-1),o=0,i=0;i<t.rank;i++)i!==e&&(r[o++]=t.shape[i]);var a=new Array(t.rank).fill(0),s=t.shape.slice();s[e]=1;var u=new Array(n);for(i=0;i<u.length;i++)a[e]=i,u[i]=this.slice(t,a,s).reshape(r);return u},t.prototype.reshape=function(t,e){var n=this.texData.get(t.dataId);return!n.isPacked||we(t.shape,e)||null!==n.texture&&we(n.shape,e)?Gr(t,e):this.packedReshape(t,e)},t.prototype.resizeBilinear=function(t,e,n,r){var o=f.getBool("WEBGL_PACK_IMAGE_OPERATIONS")?new Qi(t.shape,e,n,r):new Yi(t.shape,e,n,r);return this.compileAndRun(o,[t])},t.prototype.resizeBilinearBackprop=function(t,e,n){var r=new Xi(t,e,n);return this.compileAndRun(r,[t])},t.prototype.resizeNearestNeighbor=function(t,e,n,r){var o=new Zi(t.shape,e,n,r);return this.compileAndRun(o,[t])},t.prototype.resizeNearestNeighborBackprop=function(t,e,n){var r=new Ji(t,e,n);return this.compileAndRun(r,[t])},t.prototype.multinomial=function(t,e,n,r){var o=e?t:Ir(t),i=o.shape[0],a=o.shape[1],s=new Ui(i,a,n),u=this.makeOutputArray(s.outputShape,"int32"),c=s.getCustomSetupFunc(r);return this.compileAndRun(s,[o],u,c)},t.prototype.oneHot=function(t,e,n,r){var o=new Vi(t.size,e,n,r);return this.compileAndRun(o,[t])},t.prototype.nonMaxSuppression=function(t,e,n,r,o){return Pe("tf.nonMaxSuppression() in webgl locks the UI thread. Call tf.nonMaxSuppressionAsync() instead"),Yr(t.dataSync(),e.dataSync(),n,r,o)},t.prototype.cropAndResize=function(t,e,n,r,o,i){var a=new $o(t.shape,e.shape,r,o,i);return this.compileAndRun(a,[t,e,n])},t.prototype.depthToSpace=function(t,e,n){b(e>1,function(){return"blockSize should be > 1 for depthToSpace, but was: "+e});var r=t.shape[0],o="NHWC"===n?t.shape[1]:t.shape[2],i="NHWC"===n?t.shape[2]:t.shape[3],a="NHWC"===n?t.shape[3]:t.shape[1],s=o*e,u=i*e,c=a/(e*e),l=new ti("NHWC"===n?[r,s,u,c]:[r,c,s,u],e,n);return this.compileAndRun(l,[t])},t.prototype.split=function(t,e,n){return Jr(t,e,n)},t.prototype.scatterND=function(t,e,n){var r=mr(0,t,n),o=r.sliceRank,i=r.numUpdates,a=r.sliceSize,s=r.strides,u=r.outputSize,c=[u/a,a],l=t.reshape([i,o]),h=e.reshape([i,a]);if(0===u)return Gr(en([]),n);var p=rn(0),f=new na(i,o,l.rank,h.rank,s,c);return this.compileAndRun(f,[h,l,p]).reshape(n)},t.prototype.sparseToDense=function(t,e,n,r){var o=mr(0,t,n),i=o.sliceRank,a=o.numUpdates,s=o.strides,u=o.outputSize,c=new na(a,i,t.rank,e.rank,s,[u,1],!1);return this.compileAndRun(c,[e,t,r]).reshape(n)},t.prototype.fft=function(t){return this.fftImpl(t,!1)},t.prototype.ifft=function(t){return this.fftImpl(t,!0)},t.prototype.fftImpl=function(t,e){var n=this.texData.get(t.dataId),r=new ii("return real * expR - imag * expI;",t.shape,e),o=new ii("return real * expI + imag * expR;",t.shape,e),i=[this.makeComplexComponentTensorHandle(t,n.complexTensors.real),this.makeComplexComponentTensorHandle(t,n.complexTensors.imag)],a=this.compileAndRun(r,i),s=this.compileAndRun(o,i),u=this.complex(a,s).as2D(t.shape[0],t.shape[1]);return a.dispose(),s.dispose(),u},t.prototype.gatherND=function(t,e){var n=e.shape,r=n[n.length-1],o=fr(t,e),i=o[0],a=o[1],s=o[2],u=o[3],c=e.reshape([a,r]),l=t.reshape([t.size/s,s]),h=new li(r,u,[a,s]);return this.compileAndRun(h,[l,c]).reshape(i)},t.prototype.fill=function(t,e,n){if("string"===(n=n||q(e))){var r=O(n,_(t));return r.fill(e),mt.make(t,{values:r},n)}var o=new ai(t,e),i=o.getCustomSetupFunc(e),a=this.makeOutputArray(t,n);return this.compileAndRun(o,[],a,i)},t.prototype.onesLike=function(t){if("string"===t.dtype)throw new Error("onesLike is not supported under string dtype");return this.fill(t.shape,1,t.dtype)},t.prototype.zerosLike=function(t){return this.fill(t.shape,"string"===t.dtype?"":0,t.dtype)},t.prototype.linspace=function(t,e,n){return jr(t,e,n)},t.prototype.makeOutputArray=function(t,e){return mt.make(t,{},e,this)},t.prototype.makePackedTensor=function(t,e){var n=mt.make(t,{},e,this);return this.texData.get(n.dataId).isPacked=!0,n},t.prototype.unpackTensor=function(t){var e=new Ea(t.shape);return this.compileAndRun(e,[t],mt.make(e.outputShape,{},t.dtype,this))},t.prototype.packTensor=function(t){var e=new Gi(t.shape);return this.compileAndRun(e,[t],this.makePackedTensor(t.shape,t.dtype),null,!0)},t.prototype.packedReshape=function(t,e){var n=t.reshape([me(t.shape)].concat(ge(t.shape))),r=[me(e)].concat(ge(e)),o=new Ki(r,n.shape);return this.compileAndRun(o,[n]).reshape(e)},t.prototype.decode=function(t){var e,n=this.texData.get(t),r=n.isPacked,o=n.shape,i=n.dtype,a=ye(o),s=pi(o),u=this.makeTensorHandle(o,"float32");return this.texData.get(u.dataId).isPacked=!0,this.texData.get(u.dataId).dtype=i,this.texData.get(u.dataId).texShape=s.map(function(t){return 2*t}),e=r?new Zo(a,s):new Jo(a,s),this.compileAndRun(e,[{shape:a,dtype:i,dataId:t}],u,null,!0),u},t.prototype.compileAndRun=function(t,e,n,r,o){var i=this;if(void 0===o&&(o=!1),null==n&&(n=t.usesPackedTextures?this.makePackedTensor(t.outputShape,e[0].dtype):this.makeOutputArray(t.outputShape,e[0].dtype)),0===n.size)return this.texData.get(n.dataId).values=M(n.dtype,0),n;var a=e.map(function(e){if("complex64"===e.dtype)throw new Error("GPGPUProgram does not support complex64 input. For complex64 dtypes, please separate the program into real and imaginary parts.");var n=i.texData.get(e.dataId);if(null==n.texture){if(!t.usesPackedTextures&&_(e.shape)<=f.getNumber("WEBGL_SIZE_UPLOAD_UNIFORM"))return{shape:e.shape,texData:null,isUniform:!0,uniformValues:n.values};t.usesPackedTextures&&(n.isPacked=!0,n.shape=e.shape)}else if(!!n.isPacked!=!!t.usesPackedTextures)e=n.isPacked?i.unpackTensor(e):i.packTensor(e),n=i.texData.get(e.dataId);else if(n.isPacked&&!we(n.shape,e.shape)){var r=e,o=e.shape;e.shape=n.shape,e=i.packedReshape(e,o),n=i.texData.get(e.dataId),r.shape=o}return i.uploadToGPU(e.dataId),{shape:e.shape,texData:n,isUniform:!1}});this.uploadToGPU(n.dataId);var s,u={shape:n.shape,texData:this.texData.get(n.dataId),isUniform:!1},c=function(t,e,n){var r="";a.concat(n).forEach(function(t){var e=null!=t.texData&&null!=t.texData.slice&&t.texData.slice.flatOffset>0,n=t.isUniform?"uniform":t.texData.texShape;r+=t.shape+"_"+n+"_"+e});var o=t.userCode;return t.constructor.name+"_"+r+"_"+o}(t,0,u),l=this.getAndSaveBinary(c,function(){return function(t,e,n,r){var o=e.userCode,i=n.map(function(t,n){var r={logicalShape:t.shape,texShape:t.isUniform?null:t.texData.texShape,isUniform:t.isUniform,isPacked:!t.isUniform&&t.texData.isPacked,flatOffset:null};return null!=t.texData&&null!=t.texData.slice&&t.texData.slice.flatOffset>0&&(r.flatOffset=t.texData.slice.flatOffset),{name:e.variableNames[n],shapeInfo:r}}),a=i.map(function(t){return t.shapeInfo}),s={logicalShape:r.shape,texShape:r.texData.texShape,isUniform:!1,isPacked:r.texData.isPacked,flatOffset:null},u=ho(i,s,o,e.usesPackedTextures),c=t.createProgram(u),l=null,h=t.getUniformLocation(c,"NAN",!1);1===f.getNumber("WEBGL_VERSION")&&(l=t.getUniformLocation(c,"INFINITY",!1));for(var p={},d=0;d<e.variableNames.length;d++){var v=e.variableNames[d];p[v]=t.getUniformLocation(c,v,!1),p["offset"+v]=t.getUniformLocation(c,"offset"+v,!1)}return{program:e,source:u,webGLProgram:c,uniformLocations:p,inShapeInfos:a,outShapeInfo:s,infLoc:l,nanLoc:h}}(i.gpgpu,t,a,u)}),h=null!=this.activeTimers;return h&&(s=this.startTimer()),function(t,e,n,r,o){Mi(e.inShapeInfos,n),Mi([e.outShapeInfo],[r]);var i=r.texData.texture,a=r.texData.texShape;r.texData.isPacked?t.setOutputPackedMatrixTexture(i,a[0],a[1]):t.setOutputMatrixTexture(i,a[0],a[1]),t.setProgram(e.webGLProgram),1===f.getNumber("WEBGL_VERSION")&&null!==e.infLoc&&t.gl.uniform1f(e.infLoc,1/0),null!==e.nanLoc&&t.gl.uniform1f(e.nanLoc,NaN),n.forEach(function(n,r){var o=e.program.variableNames[r],i=e.uniformLocations[o],a=e.uniformLocations["offset"+o];if(null!=i)if(n.isUniform)if(_(n.shape)<2)t.gl.uniform1f(i,n.uniformValues[0]);else{var s=n.uniformValues;s instanceof Float32Array||(s=new Float32Array(s)),t.gl.uniform1fv(i,s)}else null!=n.texData.slice&&null!=a&&t.gl.uniform1i(a,n.texData.slice.flatOffset),t.setInputMatrixTexture(n.texData.texture,i,r)}),null!=o&&o(t,e.webGLProgram),t.executeProgram()}(this.gpgpu,l,a,u,r),h&&(s=this.endTimer(s),this.activeTimers.push({name:t.constructor.name,query:this.getQueryTime(s)})),!f.getBool("WEBGL_LAZILY_UNPACK")&&this.texData.get(n.dataId).isPacked&&!1===o?this.unpackTensor(n):n},t.prototype.getAndSaveBinary=function(t,e){return t in this.binaryCache||(this.binaryCache[t]=e()),this.binaryCache[t]},t.prototype.getTextureManager=function(){return this.textureManager},t.prototype.dispose=function(){this.disposed||(this.textureManager.dispose(),null!=this.canvas&&null!=this.canvas.remove?this.canvas.remove():this.canvas=null,null!=this.fromPixels2DContext&&null!=this.fromPixels2DContext.canvas.remove&&this.fromPixels2DContext.canvas.remove(),this.gpgpuCreatedLocally&&(this.gpgpu.program=null,this.gpgpu.dispose()),this.disposed=!0)},t.prototype.floatPrecision=function(){var t=this;return null==this.floatPrecisionValue&&(this.floatPrecisionValue=Fe(function(){var e=f.getBool("DEBUG");f.set("DEBUG",!1);var n=t.abs(rn(1e-8)).dataSync()[0];return f.set("DEBUG",e),n>0?32:16})),this.floatPrecisionValue},t.prototype.epsilon=function(){return 32===this.floatPrecision()?1e-7:1e-4},t.prototype.uploadToGPU=function(t){var e,n=this.texData.get(t),r=n.shape,o=n.dtype,i=n.values,a=n.texture,s=n.usage,u=n.isPacked;if(null==a){var c,l=null!=this.activeTimers;l&&(c=performance.now());var h=n.texShape;if(null==h&&(h=xe(r,u),n.texShape=h),null!=i){var p=ye(r),f=void 0,d=h[1],v=h[0],m=i instanceof Uint8Array;u?(d=(e=fi(h[0],h[1]))[0],v=e[1],f=new oi(p,[v,d],m)):f=new ri(p,[v,d],m);var g=this.makeTensorHandle([v,d],o);this.texData.get(g.dataId).usage=m?Yo.PIXELS:Yo.UPLOAD,this.gpgpu.uploadDenseMatrixToTexture(this.getTexture(g.dataId),d,v,i);var y=this.makeTensorHandle(f.outputShape,g.dtype);y.size=_(f.outputShape),this.texData.get(y.dataId).isPacked=u,this.compileAndRun(f,[g],y);var x=this.texData.get(y.dataId);n.texture=x.texture,n.texShape=x.texShape,n.isPacked=x.isPacked,n.usage=x.usage,this.disposeData(g.dataId),this.texData.delete(y.dataId),n.values=null,l&&(this.uploadWaitMs+=performance.now()-c)}else{var b=this.acquireTexture(h,s,o,u);n.texture=b}}},t.prototype.convertAndCacheOnCPU=function(t,e){var n=this.texData.get(t),r=n.dtype;return this.releaseGPUData(t),null!=e&&(n.values=function(t,e){if("float32"===e||"complex64"===e)return t;if("int32"===e||"bool"===e){for(var n="int32"===e?new Int32Array(t.length):new Uint8Array(t.length),r=0;r<n.length;++r)n[r]=Math.round(t[r]);return n}throw new Error("Unknown dtype "+e)}(e,r)),n.values},t.prototype.acquireTexture=function(t,e,n,r){if(this.numBytesInGPU+=this.computeBytes(t,n),!this.warnedAboutMemory&&this.numBytesInGPU>1024*this.numMBBeforeWarning*1024){var 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null!=o&&(a=We(o,"scale","batchNorm")),null!=r&&(s=We(r,"offset","batchNorm")),b(3===u.rank,function(){return"Error in batchNorm3D: x must be rank 3 but got rank "+u.rank+"."}),b(3===c.rank||1===c.rank,function(){return"Error in batchNorm3D: mean must be rank 3 or rank 1 but got rank "+c.rank+"."}),b(3===l.rank||1===l.rank,function(){return"Error in batchNorm3D: variance must be rank 3 or rank 1 but got rank "+l.rank+"."}),null!=a&&b(3===a.rank||1===a.rank,function(){return"Error in batchNorm3D: scale must be rank 3 or rank 1 but got rank "+a.rank+"."}),null!=s&&b(3===s.rank||1===s.rank,function(){return"Error in batchNorm3D: offset must be rank 3 or rank 1 but got rank "+s.rank+"."}),hs(u,c,l,s,a,i)}function ls(t,e,n,r,o,i){var a,s,u=We(t,"x","batchNorm"),c=We(e,"mean","batchNorm"),l=We(n,"variance","batchNorm");return null!=o&&(a=We(o,"scale","batchNorm")),null!=r&&(s=We(r,"offset","batchNorm")),b(4===u.rank,function(){return"Error in batchNorm4D: x must be rank 4 but got rank 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Use tf.batchNorm() instead, and note the positional argument change of scale, offset, and varianceEpsilon")}var ds=Qe({batchNormalization2d_:function(t,e,n,r,o,i){return void 0===r&&(r=.001),fs(),us(t,e,n,i,o,r)}}),vs=Qe({batchNormalization3d_:function(t,e,n,r,o,i){return void 0===r&&(r=.001),fs(),cs(t,e,n,i,o,r)}}),ms=Qe({batchNormalization4d_:function(t,e,n,r,o,i){return void 0===r&&(r=.001),fs(),ls(t,e,n,i,o,r)}}),gs=Qe({batchNormalization_:function(t,e,n,r,o,i){return void 0===r&&(r=.001),fs(),hs(t,e,n,i,o,r)}}),ys=Qe({batchNorm_:hs}),xs=Qe({batchNorm2d_:us}),bs=Qe({batchNorm3d_:cs}),ws=Qe({batchNorm4d_:ls});function Cs(t,e,n,r,o,i){b(t.length===e.rank,function(){return"Length of inShape ("+t.length+") and rank of dy ("+e.rank+") must match"});var a=t,s=e,u=!1;3===e.rank&&(u=!0,s=e.as4D(1,e.shape[0],e.shape[1],e.shape[2]),a=[1,t[0],t[1],t[2]]);var c=a[3],l=s.shape[3];b(4===a.length,function(){return"Error in conv2dDerInput: inShape must be length 4, but got length "+a.length+"."}),b(4===s.rank,function(){return"Error in conv2dDerInput: dy must be rank 4, but got rank "+s.rank}),b(4===n.rank,function(){return"Error in conv2dDerInput: filter must be rank 4, but got rank "+n.rank}),b(c===n.shape[2],function(){return"Error in conv2dDerInput: depth of input ("+c+") must match input depth for filter "+n.shape[2]+"."}),b(l===n.shape[3],function(){return"Error in conv2dDerInput: depth of output ("+l+") must match output depth for filter "+n.shape[3]+"."}),null!=i&&b(S(o),function(){return"Error in conv2dDerInput: pad must be an integer when using, dimRoundingMode "+i+" but got pad "+o+"."});var h=Fr(a,n.shape,r,1,o,i),p=Mt.runKernel(function(t,e){var r=t.conv2dDerInput(s,n,h);return e([n,s]),r},{dy4D:s,filter:n},function(t,e){var n=e[0],a=e[1];return{dy4D:function(){return Ss(t,n,r,o,"NHWC",1,i)},filter:function(){return Ns(t,a,n.shape,r,o,i)}}});return u?p.as3D(p.shape[1],p.shape[2],p.shape[3]):p}function Es(t,e,n,r,o,i){var a=t;3===t.rank&&(a=t.as4D(1,t.shape[0],t.shape[1],t.shape[2]));var s=e;3===s.rank&&(s=e.as4D(1,e.shape[0],e.shape[1],e.shape[2])),b(4===a.rank,function(){return"Error in conv2dDerFilter: input must be rank 4, but got shape "+a.shape+"."}),b(4===s.rank,function(){return"Error in conv2dDerFilter: dy must be rank 4, but got shape "+s.shape+"."}),b(4===n.length,function(){return"Error in conv2dDerFilter: filterShape must be length 4, but got "+n+"."}),b(a.shape[3]===n[2],function(){return"Error in conv2dDerFilter: depth of input "+a.shape[3]+") must match input depth in filter ("+n[2]+"."}),b(s.shape[3]===n[3],function(){return"Error in conv2dDerFilter: depth of dy ("+s.shape[3]+") must match output depth for filter ("+n[3]+")."}),null!=i&&b(S(o),function(){return"Error in conv2dDerFilter: pad must be an integer when using, dimRoundingMode "+i+" but got pad "+o+"."});var u=Fr(a.shape,n,r,1,o,i);return Mt.runKernel(function(t){return t.conv2dDerFilter(a,s,u)},{x4D:a,dy4D:s})}function _s(t){var e=function(t){return"number"==typeof t?[t,t,t]:2===t.length?[t[0],t[1],1]:t}(t),n=e[0],r=e[1],o=e[2];return 1===n&&1===r&&1===o}var Is=Qe({conv1d_:function(t,e,n,r,o,i,a){void 0===o&&(o="NWC"),void 0===i&&(i=1);var s=We(t,"x","conv1d"),u=We(e,"filter","conv1d"),c=s,l=!1;2===s.rank&&(l=!0,c=s.as3D(1,s.shape[0],s.shape[1])),b(3===c.rank,function(){return"Error in conv1d: input must be rank 3, but got rank "+c.rank+"."}),b(3===u.rank,function(){return"Error in conv1d: filter must be rank 3, but got rank "+u.rank+"."}),null!=a&&b(S(r),function(){return"Error in conv1d: pad must be an integer when using, dimRoundingMode "+a+" but got pad "+r+"."}),b(c.shape[2]===u.shape[1],function(){return"Error in conv1d: depth of input ("+c.shape[2]+") must match input depth for filter "+u.shape[1]+"."}),b(Ur(n,i),function(){return"Error in conv1D: Either stride or dilation must be 1. Got stride "+n+" and dilation '"+i+"'"}),b("NWC"===o,function(){return"Error in conv1d: got dataFormat of "+o+" but only NWC is currently supported."});var h=u.as4D(1,u.shape[0],u.shape[1],u.shape[2]),p=c.as4D(c.shape[0],1,c.shape[1],c.shape[2]),f=Ss(p,h,[1,n],r,"NHWC",[1,i],a);return l?f.as2D(f.shape[2],f.shape[3]):f.as3D(f.shape[0],f.shape[2],f.shape[3])}}),Ss=Qe({conv2d_:function(t,e,n,r,o,i,a){void 0===o&&(o="NHWC"),void 0===i&&(i=[1,1]);var s=We(t,"x","conv2d"),u=We(e,"filter","conv2d"),c=s,l=!1;3===s.rank&&(l=!0,c=s.as4D(1,s.shape[0],s.shape[1],s.shape[2])),b(4===c.rank,function(){return"Error in conv2d: input must be rank 4, but got rank "+c.rank+"."}),b(4===u.rank,function(){return"Error in conv2d: filter must be rank 4, but got rank "+u.rank+"."}),null!=a&&b(S(r),function(){return"Error in conv2d: pad must be an integer when using, dimRoundingMode "+a+" but got pad "+r+"."}),b(c.shape[3]===u.shape[2],function(){return"Error in conv2d: depth of input ("+c.shape[3]+") must match input depth for filter "+u.shape[2]+"."}),b(Ur(n,i),function(){return"Error in conv2D: Either strides or dilations must be 1. Got strides "+n+" and dilations '"+i+"'"}),b("NHWC"===o,function(){return"Error in conv2d: got dataFormat of "+o+" but only NHWC is currently supported."});var h=Fr(c.shape,u.shape,n,i,r,a),p=Mt.runKernel(function(t,e){var n=t.conv2d(c,u,h);return e([u,c]),n},{x:c,$filter:u},function(t,e){var o=e,a=o[0],s=o[1];return b(zr(i),function(){return"Error in gradient of conv2D: dilation rates greater than 1 are not yet supported in gradients. Got dilations '"+i+"'"}),{x:function(){return Cs(s.shape,t,a,n,r)},$filter:function(){return Es(s,t,a.shape,n,r)}}});return l?p.as3D(p.shape[1],p.shape[2],p.shape[3]):p}}),Rs=Qe({conv3d_:function(t,e,n,r,o,i){void 0===o&&(o="NDHWC"),void 0===i&&(i=[1,1,1]);var a=We(t,"x","conv3d"),s=We(e,"filter","conv3d"),u=a,c=!1;4===a.rank&&(c=!0,u=a.as5D(1,a.shape[0],a.shape[1],a.shape[2],a.shape[3])),b(5===u.rank,function(){return"Error in conv3d: input must be rank 5, but got rank "+u.rank+"."}),b(5===s.rank,function(){return"Error in conv3d: filter must be rank 5, but got rank "+s.rank+"."}),b(u.shape[4]===s.shape[3],function(){return"Error in conv3d: depth of input ("+u.shape[4]+") must match input depth for filter "+s.shape[3]+"."}),b(function(t,e){return _s(n)||_s(e)}(0,i),function(){return"Error in conv3D: Either strides or dilations must be 1. Got strides "+n+" and dilations '"+i+"'"}),b("NDHWC"===o,function(){return"Error in conv3d: got dataFormat of "+o+" but only NDHWC is currently supported."});var l=Mr(u.shape,s.shape,n,i,r),h=Mt.runKernel(function(t,e){var n=t.conv3d(u,s,l);return e([u,s]),n},{x:u,$filter:s},function(t,e){b(_s(i),function(){return"Error in gradient of conv3D: dilation rates greater than 1 are not yet supported in gradients. Got dilations '"+i+"'"});var o=e[0],a=e[1];return{x:function(){return function(t,e,n,r,o){b(t.length===e.rank,function(){return"Length of inShape ("+t.length+") and rank of dy ("+e.rank+") must match"});var i=t,a=e,s=!1;4===e.rank&&(s=!0,a=e.as5D(1,e.shape[0],e.shape[1],e.shape[2],e.shape[3]),i=[1,t[0],t[1],t[2],t[3]]);var u=i[4],c=a.shape[4];b(5===i.length,function(){return"Error in conv3dDerInput: inShape must be length 5, but got length "+i.length+"."}),b(5===a.rank,function(){return"Error in conv3dDerInput: dy must be rank 5, but got rank "+a.rank}),b(5===n.rank,function(){return"Error in conv3dDerInput: filter must be rank 5, but got rank "+n.rank}),b(u===n.shape[3],function(){return"Error in conv3dDerInput: depth of input ("+u+") must match input depth for filter "+n.shape[3]+"."}),b(c===n.shape[4],function(){return"Error in conv3dDerInput: depth of output ("+c+") must match output depth for filter "+n.shape[4]+"."});var l=Mr(i,n.shape,r,1,o),h=Mt.runKernel(function(t){return t.conv3dDerInput(a,n,l)},{dy5D:a});return s?h.as4D(h.shape[1],h.shape[2],h.shape[3],h.shape[4]):h}(o.shape,t,a,n,r)},$filter:function(){return function(t,e,n,r,o){var i=t;4===t.rank&&(i=t.as5D(1,t.shape[0],t.shape[1],t.shape[2],t.shape[3]));var a=e;4===a.rank&&(a=e.as5D(1,e.shape[0],e.shape[1],e.shape[2],e.shape[3])),b(5===i.rank,function(){return"Error in conv3dDerFilter: input must be rank 5, but got shape "+i.shape+"."}),b(5===a.rank,function(){return"Error in conv3dDerFilter: dy must be rank 5, but got shape "+a.shape+"."}),b(5===n.length,function(){return"Error in conv3dDerFilter: filterShape must be length 5, but got "+n+"."}),b(i.shape[4]===n[3],function(){return"Error in conv3dDerFilter: depth of input "+i.shape[4]+") must match input depth in filter ("+n[3]+"."}),b(a.shape[4]===n[4],function(){return"Error in conv3dDerFilter: depth of dy ("+a.shape[4]+") must match output depth for filter ("+n[4]+")."});var s=Mr(i.shape,n,r,1,o);return Mt.runKernel(function(t){return t.conv3dDerFilter(i,a,s)},{x5D:i,dy5D:a})}(o,t,a.shape,n,r)}}});return c?h.as4D(h.shape[1],h.shape[2],h.shape[3],h.shape[4]):h}}),Ns=Qe({conv2dDerFilter_:Es}),ks=Qe({depthwiseConv2d_:function(t,e,n,r,o,i,a){void 0===i&&(i=[1,1]);var s=We(t,"x","depthwiseConv2d"),u=We(e,"filter","depthwiseConv2d"),c=s,l=!1;3===s.rank&&(l=!0,c=s.as4D(1,s.shape[0],s.shape[1],s.shape[2])),b(4===c.rank,function(){return"Error in depthwiseConv2d: input must be rank 4, but got rank "+c.rank+"."}),b(4===u.rank,function(){return"Error in depthwiseConv2d: filter must be rank 4, but got rank "+u.rank+"."}),b(c.shape[3]===u.shape[2],function(){return"Error in depthwiseConv2d: number of input channels ("+c.shape[3]+") must match the inChannels dimension in filter "+u.shape[2]+"."}),null==i&&(i=[1,1]),b(Ur(n,i),function(){return"Error in depthwiseConv2d: Either strides or dilations must be 1. 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n=Ge(t.shape,e),r=n[0],o=n[1],i=pn(r,It(t.dtype,"int32")),a=_(o),s=this.readSync(i.dataId),u=this.readSync(t.dataId),c=0;c<s.length;++c){for(var l=c*a,h=1,p=0;p<a;++p)h*=u[l+p];s[c]=h}return i},t.prototype.unsortedSegmentSum=function(t,e,n){this.assertNotComplex(t,"unsortedSegmentSum");for(var r=[],o=t.rank-e.rank,i=0;i<o;++i)e=e.expandDims(i+1);for(i=0;i<n;++i){var a=rn(i,"int32"),s=uu(a,e).asType("float32").mul(t).sum(0);r.push(s)}return rr(r)},t.prototype.argMin=function(t,e){this.assertNotComplex(t,"argMin");var n=[e];He("argMin",n,t.rank);for(var r=Ge(t.shape,n),o=r[0],i=r[1],a=pn(o,"int32"),s=_(i),u=this.readSync(a.dataId),c=this.readSync(t.dataId),l=0;l<u.length;++l){for(var h=l*s,p=c[h],f=0,d=0;d<s;++d){var v=c[h+d];v<p&&(p=v,f=d)}u[l]=f}return a},t.prototype.argMax=function(t,e){this.assertNotComplex(t,"argMax");var n=[e];He("argMax",n,t.rank);for(var r=Ge(t.shape,n),o=r[0],i=r[1],a=pn(o,"int32"),s=_(i),u=this.readSync(a.dataId),c=this.readSync(t.dataId),l=0;l<u.length;++l){for(var h=l*s,p=c[h],f=0,d=0;d<s;++d){var v=c[h+d];v>p&&(p=v,f=d)}u[l]=f}return a},t.prototype.cumsum=function(t,e,n,r){if(this.assertNotComplex(t,"cumsum"),e!==t.rank-1)throw new Error("backend.cumsum in CPU expects an inner-most axis="+(t.rank-1)+" but got axis="+e);for(var o=It(t.dtype,"int32"),i=pn(t.shape,o),a=this.readSync(i.dataId),s=this.readSync(t.dataId),u=t.shape[t.rank-1],c=r?function(t,e){return t+u-e-1}:function(t,e){return t+e},l=0;l<s.length;l+=u)for(var h=0;h<u;h++){var p=c(l,h);if(0===h)a[p]=n?0:s[p];else{var f=c(l,h-1);a[p]=n?s[f]+a[f]:s[p]+a[f]}}return i},t.prototype.equal=function(t,e){return this.assertNotComplex([t,e],"equal"),this.broadcastedBinaryOp(t,e,"bool",function(t,e){return t===e?1:0})},t.prototype.notEqual=function(t,e){return this.assertNotComplex([t,e],"notEqual"),this.broadcastedBinaryOp(t,e,"bool",function(t,e){return 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mt.make(t.shape,{values:n},"bool")},t.prototype.round=function(t){this.assertNotComplex(t,"round");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=Math.floor(e[r]);e[r]-o<.5?n[r]=Math.floor(e[r]):e[r]-o>.5?n[r]=Math.ceil(e[r]):n[r]=o%2==0?o:o+1}return mt.make(t.shape,{values:n})},t.prototype.exp=function(t){this.assertNotComplex(t,"exp");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r)n[r]=Math.exp(e[r]);return mt.make(t.shape,{values:n})},t.prototype.expm1=function(t){this.assertNotComplex(t,"expm1");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r)n[r]=Math.expm1(e[r]);return mt.make(t.shape,{values:n})},t.prototype.log=function(t){this.assertNotComplex(t,"log");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=e[r];n[r]=Math.log(o)}return mt.make(t.shape,{values:n})},t.prototype.log1p=function(t){this.assertNotComplex(t,"log1p");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=e[r];n[r]=Math.log1p(o)}return mt.make(t.shape,{values:n})},t.prototype.sqrt=function(t){this.assertNotComplex(t,"sqrt");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=e[r];n[r]=Math.sqrt(o)}return mt.make(t.shape,{values:n})},t.prototype.rsqrt=function(t){this.assertNotComplex(t,"rsqrt");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=e[r];n[r]=1/Math.sqrt(o)}return mt.make(t.shape,{values:n})},t.prototype.square=function(t){this.assertNotComplex(t,"square");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=e[r];n[r]=o*o}return mt.make(t.shape,{values:n})},t.prototype.reciprocal=function(t){this.assertNotComplex(t,"reciprocal");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r)n[r]=1/e[r];return mt.make(t.shape,{values:n})},t.prototype.linear=function(t){return t},t.prototype.relu=function(t){this.assertNotComplex(t,"relu");for(var e=pn(t.shape,t.dtype),n=this.readSync(e.dataId),r=this.readSync(t.dataId),o=0;o<r.length;++o)n[o]=Math.max(0,r[o]);return e},t.prototype.prelu=function(t,e){return this.assertNotComplex([t,e],"prelu"),this.broadcastedBinaryOp(t,e,t.dtype,function(t,e){return t<0?e*t:t})},t.prototype.elu=function(t){this.assertNotComplex(t,"elu");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r){var o=n[r];e[r]=o>=0?o:Math.exp(o)-1}return mt.make(t.shape,{values:e})},t.prototype.eluDer=function(t,e){this.assertNotComplex([t,e],"eluDer");for(var n=new Float32Array(e.size),r=this.readSync(e.dataId),o=this.readSync(t.dataId),i=0;i<r.length;++i){var a=r[i];n[i]=a>=1?o[i]:o[i]*(a+1)}return mt.make(e.shape,{values:n})},t.prototype.selu=function(t){this.assertNotComplex(t,"selu");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r){var o=n[r];e[r]=o>=0?1.0507009873554805*o:1.7580993408473768*(Math.exp(o)-1)}return mt.make(t.shape,{values:e})},t.prototype.clip=function(t,e,n){this.assertNotComplex(t,"clip");for(var r=new Float32Array(t.size),o=this.readSync(t.dataId),i=0;i<o.length;++i){var a=o[i];r[i]=a>n?n:a<e?e:a}return mt.make(t.shape,{values:r})},t.prototype.abs=function(t){for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.abs(n[r]);return mt.make(t.shape,{values:e})},t.prototype.complexAbs=function(t){for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<t.size;++r){var o=n[2*r],i=n[2*r+1];e[r]=Math.hypot(o,i)}return mt.make(t.shape,{values:e})},t.prototype.int=function(t){this.assertNotComplex(t,"int");for(var e=new Int32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=n[r];return mt.make(t.shape,{values:e},"int32")},t.prototype.sigmoid=function(t){this.assertNotComplex(t,"sigmoid");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=1/(1+Math.exp(-n[r]));return mt.make(t.shape,{values:e})},t.prototype.softplus=function(t){this.assertNotComplex(t,"softplus");for(var e=Math.log(1.1920928955078125e-7)+2,n=new Float32Array(t.size),r=this.readSync(t.dataId),o=0;o<r.length;++o){var i,a=r[o]>-e,s=r[o]<e,u=Math.exp(r[o]);i=s?u:a?r[o]:Math.log(1+u),n[o]=i}return mt.make(t.shape,{values:n})},t.prototype.sin=function(t){this.assertNotComplex(t,"sin");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.sin(n[r]);return mt.make(t.shape,{values:e})},t.prototype.cos=function(t){this.assertNotComplex(t,"cos");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.cos(n[r]);return mt.make(t.shape,{values:e})},t.prototype.tan=function(t){this.assertNotComplex(t,"tan");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.tan(n[r]);return mt.make(t.shape,{values:e})},t.prototype.asin=function(t){this.assertNotComplex(t,"asin");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.asin(n[r]);return mt.make(t.shape,{values:e})},t.prototype.acos=function(t){this.assertNotComplex(t,"acos");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.acos(n[r]);return mt.make(t.shape,{values:e})},t.prototype.atan=function(t){this.assertNotComplex(t,"atan");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.atan(n[r]);return mt.make(t.shape,{values:e})},t.prototype.atan2=function(t,e){return this.assertNotComplex([t,e],"atan2"),this.broadcastedBinaryOp(t,e,t.dtype,function(t,e){return Math.atan2(t,e)})},t.prototype.sinh=function(t){this.assertNotComplex(t,"sinh");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.sinh(n[r]);return mt.make(t.shape,{values:e})},t.prototype.cosh=function(t){this.assertNotComplex(t,"cosh");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.cosh(n[r]);return mt.make(t.shape,{values:e})},t.prototype.tanh=function(t){this.assertNotComplex(t,"tanh");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=R(n[r]);return mt.make(t.shape,{values:e})},t.prototype.asinh=function(t){this.assertNotComplex(t,"asinh");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.asinh(n[r]);return mt.make(t.shape,{values:e})},t.prototype.acosh=function(t){this.assertNotComplex(t,"acosh");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.acosh(n[r]);return mt.make(t.shape,{values:e})},t.prototype.atanh=function(t){this.assertNotComplex(t,"atanh");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.atanh(n[r]);return mt.make(t.shape,{values:e})},t.prototype.erf=function(t){this.assertNotComplex(t,"erf");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r){var o=n[r],i=1/(1+.3275911*o);e[r]=1-((((1.061405429*i-1.453152027)*i+1.421413741)*i-.284496736)*i+.254829592)*i*Math.exp(-o*o)}return mt.make(t.shape,{values:e})},t.prototype.step=function(t,e){void 0===e&&(e=0),this.assertNotComplex(t,"step");for(var n=new Float32Array(t.size),r=this.readSync(t.dataId),o=0;o<r.length;++o){var i=r[o];isNaN(i)?n[o]=NaN:n[o]=i>0?1:e}return mt.make(t.shape,{values:n})},t.prototype.conv2d=function(t,e,n){this.assertNotComplex([t,e],"conv2d");for(var r=n.filterHeight,o=n.filterWidth,i=n.dilationHeight,a=n.dilationWidth,s=n.padInfo.left,u=n.padInfo.top,c=On(n.outShape,t.dtype),l=this.readSync(t.dataId),h=this.readSync(e.dataId),p=c.values,f=0;f<n.batchSize;++f)for(var d=f*t.strides[0],v=f*c.strides[0],m=0;m<n.outHeight;++m)for(var g=v+m*c.strides[1],y=m*n.strideHeight-u,x=0;x<r;x++){var b=y+x*i;if(!(b<0||b>=n.inHeight))for(var w=x*e.strides[0],C=d+b*t.strides[1],E=0;E<n.outWidth;++E)for(var _=g+E*n.outChannels,I=E*n.strideWidth-s,S=0;S<o;S++){var R=I+S*a;if(!(R<0||R>=n.inWidth))for(var N=w+S*e.strides[1],k=C+R*n.inChannels,A=N,T=0;T<n.inChannels;++T){for(var D=l[k+T],F=0;F<n.outChannels;++F)p[_+F]+=D*h[A+F];A+=n.outChannels}}}return c.toTensor()},t.prototype.conv3d=function(t,e,n){for(var r=n.filterDepth,o=n.filterHeight,i=n.filterWidth,a=n.dilationDepth,s=n.dilationHeight,u=n.dilationWidth,c=n.padInfo.front,l=n.padInfo.left,h=n.padInfo.top,p=On(n.outShape,t.dtype),f=this.readSync(t.dataId),d=this.readSync(e.dataId),v=p.values,m=0;m<n.batchSize;++m)for(var g=m*t.strides[0],y=m*p.strides[0],x=0;x<n.outDepth;++x)for(var b=y+x*p.strides[1],w=x*n.strideDepth-c,C=0;C<r;C++){var E=w+C*a;if(!(E<0||E>=n.inDepth))for(var _=C*e.strides[0],I=g+E*t.strides[1],S=0;S<n.outHeight;++S)for(var R=b+S*p.strides[2],N=S*n.strideHeight-h,k=0;k<o;k++){var A=N+k*s;if(!(A<0||A>=n.inHeight))for(var T=_+k*e.strides[1],D=I+A*t.strides[2],F=0;F<n.outWidth;++F)for(var M=R+F*n.outChannels,O=F*n.strideWidth-l,P=0;P<i;P++){var B=O+P*u;if(!(B<0||B>=n.inWidth))for(var L=T+P*e.strides[2],W=D+B*n.inChannels,z=L,U=0;U<n.inChannels;++U){for(var V=f[W+U],G=0;G<n.outChannels;++G)v[M+G]+=V*d[z+G];z+=n.outChannels}}}}return p.toTensor()},t.prototype.conv2dDerInput=function(t,e,n){this.assertNotComplex([t,e],"conv2dDerInput");for(var r=On(n.inShape,"float32"),o=r.values,i=r.strides,a=i[0],s=i[1],u=i[2],c=this.readSync(t.dataId),l=t.strides,h=l[0],p=l[1],f=l[2],d=this.readSync(e.dataId),v=e.strides,m=v[0],g=v[1],y=v[2],x=n.batchSize,b=n.filterHeight,w=n.filterWidth,C=n.inChannels,E=n.inHeight,_=n.inWidth,I=n.outChannels,S=n.outHeight,R=n.outWidth,N=n.strideHeight,k=n.strideWidth,A=b-1-n.padInfo.top,T=w-1-n.padInfo.left,D=0;D<x;++D)for(var F=0;F<C;++F)for(var M=0;M<E;++M)for(var O=M-A,P=Math.max(0,Math.ceil(O/N)),B=Math.min(S,(b+O)/N),L=0;L<_;++L){for(var W=L-T,z=Math.max(0,Math.ceil(W/k)),U=Math.min(R,(w+W)/k),V=0,G=P;G<B;++G)for(var j=G*N-O,H=z;H<U;++H)for(var q=h*D+p*G+f*H,$=m*(b-1-j)+g*(w-1-(H*k-W))+y*F,K=0;K<I;++K)V+=c[q+K]*d[$+K];o[a*D+s*M+u*L+F]=V}return r.toTensor()},t.prototype.conv3dDerInput=function(t,e,n){for(var r=On(n.inShape,"float32"),o=r.values,i=r.strides,a=i[0],s=i[1],u=i[2],c=i[3],l=this.readSync(t.dataId),h=t.strides,p=h[0],f=h[1],d=h[2],v=h[3],m=this.readSync(e.dataId),g=e.strides,y=g[0],x=g[1],b=g[2],w=g[3],C=n.batchSize,E=n.filterDepth,_=n.filterHeight,I=n.filterWidth,S=n.inChannels,R=n.inDepth,N=n.inHeight,k=n.inWidth,A=n.outChannels,T=n.outDepth,D=n.outHeight,F=n.outWidth,M=n.strideDepth,O=n.strideHeight,P=n.strideWidth,B=E-1-n.padInfo.front,L=_-1-n.padInfo.top,W=I-1-n.padInfo.left,z=0;z<C;++z)for(var U=0;U<S;++U)for(var V=0;V<R;++V)for(var G=V-B,j=Math.max(0,Math.ceil(G/M)),H=Math.min(T,(E+G)/M),q=0;q<N;++q)for(var $=q-L,K=Math.max(0,Math.ceil($/O)),X=Math.min(D,(_+$)/O),Y=0;Y<k;++Y){for(var Q=Y-W,J=Math.max(0,Math.ceil(Q/P)),Z=Math.min(F,(I+Q)/P),tt=0,et=j;et<H;++et)for(var nt=et*M-G,rt=K;rt<X;++rt)for(var ot=rt*O-$,it=J;it<Z;++it)for(var at=p*z+f*et+d*rt+v*it,st=y*(E-1-nt)+x*(_-1-ot)+b*(I-1-(it*P-Q))+w*U,ut=0;ut<A;++ut)tt+=l[at+ut]*m[st+ut];o[a*z+s*V+u*q+c*Y+U]=tt}return r.toTensor()},t.prototype.conv2dDerFilter=function(t,e,n){this.assertNotComplex([t,e],"conv2dDerFilter");for(var r=n.strideHeight,o=n.strideWidth,i=n.filterHeight,a=n.filterWidth,s=On(n.filterShape,"float32"),u=n.padInfo.left,c=n.padInfo.top,l=this.bufferSync(t),h=this.bufferSync(e),p=0;p<i;++p)for(var f=Math.max(0,Math.ceil((c-p)/r)),d=Math.min(n.outHeight,(n.inHeight+c-p)/r),v=0;v<a;++v)for(var m=Math.max(0,Math.ceil((u-v)/o)),g=Math.min(n.outWidth,(n.inWidth+u-v)/o),y=0;y<n.inChannels;++y)for(var x=0;x<n.outChannels;++x){for(var b=0,w=0;w<n.batchSize;++w)for(var C=f;C<d;++C)for(var E=p+C*r-c,_=m;_<g;++_){var I=v+_*o-u;b+=l.get(w,E,I,y)*h.get(w,C,_,x)}s.set(b,p,v,y,x)}return s.toTensor()},t.prototype.conv3dDerFilter=function(t,e,n){for(var r=n.strideDepth,o=n.strideHeight,i=n.strideWidth,a=n.filterDepth,s=n.filterHeight,u=n.filterWidth,c=On(n.filterShape,"float32"),l=c.values,h=c.strides,p=h[0],f=h[1],d=h[2],v=h[3],m=this.readSync(e.dataId),g=e.strides,y=g[0],x=g[1],b=g[2],w=g[3],C=this.readSync(t.dataId),E=t.strides,_=E[0],I=E[1],S=E[2],R=E[3],N=n.padInfo.front,k=n.padInfo.left,A=n.padInfo.top,T=0;T<a;++T)for(var D=Math.max(0,Math.ceil((N-T)/r)),F=Math.min(n.outDepth,(n.inDepth+N-T)/r),M=T*p,O=0;O<s;++O)for(var P=Math.max(0,Math.ceil((A-O)/o)),B=Math.min(n.outHeight,(n.inHeight+A-O)/o),L=O*f+M,W=0;W<u;++W)for(var z=Math.max(0,Math.ceil((k-W)/i)),U=Math.min(n.outWidth,(n.inWidth+k-W)/i),V=W*d+L,G=0;G<n.inChannels;++G)for(var j=G*v+V,H=0;H<n.outChannels;++H){for(var q=0,$=0;$<n.batchSize;++$)for(var K=$*_,X=$*y,Y=D;Y<F;++Y)for(var Q=(T+Y*r-N)*I+K,J=Y*x+X,Z=P;Z<B;++Z)for(var tt=(O+Z*o-A)*S+Q,et=Z*b+J,nt=z;nt<U;++nt){var rt=nt*w+et;q+=C[(W+nt*i-k)*R+tt+G]*m[rt+H]}l[j+H]=q}return c.toTensor()},t.prototype.depthwiseConv2D=function(t,e,n){this.assertNotComplex([t,e],"depthwiseConv2D");for(var r=n.filterHeight,o=n.filterWidth,i=n.dilationHeight,a=n.dilationWidth,s=n.padInfo.left,u=n.padInfo.top,c=n.outChannels/n.inChannels,l=On(n.outShape,t.dtype),h=this.readSync(t.dataId),p=this.readSync(e.dataId),f=l.values,d=0;d<n.batchSize;++d)for(var v=d*t.strides[0],m=d*l.strides[0],g=0;g<n.outHeight;++g)for(var y=m+g*l.strides[1],x=g*n.strideHeight-s,b=0;b<r;++b){var w=x+b*i;if(!(w<0||w>=n.inHeight))for(var C=b*e.strides[0],E=v+w*t.strides[1],_=0;_<n.outWidth;++_)for(var I=y+_*l.strides[2],S=_*n.strideWidth-u,R=0;R<o;++R){var N=S+R*a;if(!(N<0||N>=n.inWidth))for(var k=C+R*e.strides[1],A=E+N*n.inChannels,T=I,D=k,F=0;F<n.inChannels;++F){for(var M=h[A+F],O=0;O<c;++O)f[T+O]+=M*p[D+O];T+=c,D+=c}}}return l.toTensor()},t.prototype.depthwiseConv2DDerInput=function(t,e,n){this.assertNotComplex([t,e],"depthwiseConv2DDerInput");for(var r=On(n.inShape,"float32"),o=r.values,i=r.strides,a=i[0],s=i[1],u=i[2],c=this.readSync(t.dataId),l=t.strides,h=l[0],p=l[1],f=l[2],d=this.readSync(e.dataId),v=e.strides,m=v[0],g=v[1],y=v[2],x=n.batchSize,b=n.filterHeight,w=n.filterWidth,C=n.inChannels,E=n.inHeight,_=n.inWidth,I=n.outChannels,S=n.outHeight,R=n.outWidth,N=n.strideHeight,k=n.strideWidth,A=b-1-n.padInfo.top,T=w-1-n.padInfo.left,D=I/C,F=0;F<x;++F)for(var M=0;M<C;++M)for(var O=0;O<E;++O)for(var P=O-A,B=Math.max(0,Math.ceil(P/N)),L=Math.min(S,(b+P)/N),W=0;W<_;++W){for(var z=W-T,U=Math.max(0,Math.ceil(z/k)),V=Math.min(R,(w+z)/k),G=0,j=B;j<L;++j)for(var H=j*N-P,q=U;q<V;++q)for(var $=h*F+p*j+f*q,K=m*(b-1-H)+g*(w-1-(q*k-z))+y*M,X=0;X<D;++X)G+=c[$+(M*D+X)]*d[K+X];o[a*F+s*O+u*W+M]=G}return r.toTensor()},t.prototype.depthwiseConv2DDerFilter=function(t,e,n){this.assertNotComplex([t,e],"depthwiseConv2DDerFilter");for(var r=n.strideHeight,o=n.strideWidth,i=n.filterHeight,a=n.filterWidth,s=On(n.filterShape,"float32"),u=n.padInfo.left,c=n.padInfo.top,l=n.outChannels/n.inChannels,h=this.bufferSync(t),p=this.bufferSync(e),f=0;f<i;++f)for(var d=Math.max(0,Math.ceil((c-f)/r)),v=Math.min(n.outHeight,(n.inHeight+c-f)/r),m=0;m<a;++m)for(var g=Math.max(0,Math.ceil((u-m)/o)),y=Math.min(n.outWidth,(n.inWidth+u-m)/o),x=0;x<n.outChannels;++x){for(var b=Math.trunc(x/l),w=x%l,C=0,E=0;E<n.batchSize;++E)for(var _=d;_<v;++_)for(var I=f+_*r-c,S=g;S<y;++S){var R=m+S*o-u;C+=h.get(E,I,R,b)*p.get(E,_,S,x)}s.set(C,f,m,b,w)}return s.toTensor()},t.prototype.tile=function(t,e){return this.assertNotComplex(t,"tile"),Zr(this.bufferSync(t),e)},t.prototype.pad=function(t,e,n){this.assertNotComplex(t,"pad");var r=e.map(function(e,n){return e[0]+t.shape[n]+e[1]}),o=e.map(function(t){return t[0]}),i=this.bufferSync(t),a=On(r,t.dtype);0!==n&&a.values.fill(n);for(var s=0;s<t.size;s++){var u=i.indexToLoc(s),c=u.map(function(t,e){return t+o[e]});a.set.apply(a,[i.get.apply(i,u)].concat(c))}return a.toTensor()},t.prototype.transpose=function(t,e){this.assertNotComplex(t,"transpose");for(var n=new Array(t.rank),r=0;r<n.length;r++)n[r]=t.shape[e[r]];var o=this.readSync(t.dataId),i=On(n,t.dtype),a=this.bufferSync(t);for(r=0;r<t.size;++r){for(var s=a.indexToLoc(r),u=new Array(s.length),c=0;c<u.length;c++)u[c]=s[e[c]];var l=i.locToIndex(u);i.values[l]=o[r]}return i.toTensor()},t.prototype.gather=function(t,e,n){this.assertNotComplex([t,e],"gather");var r=t.shape.slice(),o=this.readSync(e.dataId);r[n]=o.length;for(var i=On(r,t.dtype),a=this.bufferSync(t),s=0;s<i.size;++s){var u=i.indexToLoc(s),c=u.slice();c[n]=o[u[n]];var l=a.locToIndex(c);i.values[s]=a.values[l]}return i.toTensor()},t.prototype.batchToSpaceND=function(t,e,n){this.assertNotComplex([t],"batchToSpaceND");var r=e.reduce(function(t,e){return t*e}),o=ur(t.shape,e,r),i=cr(o.length,e.length),a=lr(t.shape,e,r),s=hr(n,e.length),u=pr(a,n,e.length);return t.reshape(o).transpose(i).reshape(a).slice(s,u)},t.prototype.spaceToBatchND=function(t,e,n){this.assertNotComplex([t],"spaceToBatchND");var r=e.reduce(function(t,e){return t*e}),o=[[0,0]];o.push.apply(o,n);for(var i=1+e.length;i<t.shape.length;++i)o.push([0,0]);var a=t.pad(o),s=ur(a.shape,e,r,!1),u=cr(s.length,e.length,!1),c=lr(a.shape,e,r,!1);return a.reshape(s).transpose(u).reshape(c)},t.prototype.pool=function(t,e,n){this.assertNotComplex(t,"pool");for(var r=e.strideHeight,o=e.strideWidth,i=e.dilationHeight,a=e.dilationWidth,s=e.effectiveFilterHeight,u=e.effectiveFilterWidth,c=e.padInfo.top,l=e.padInfo.left,h="max"===n?Number.NEGATIVE_INFINITY:Number.POSITIVE_INFINITY,p=this.readSync(t.dataId),f=On(e.outShape,t.dtype),d=f.values,v=e.outShape[1]*e.outShape[2]*e.outShape[3],m=e.outShape[2]*e.outShape[3],g=e.outShape[3],y=0;y<e.batchSize;++y)for(var x=y*v,b=y*t.strides[0],w=0;w<e.inChannels;++w)for(var C=0;C<e.outHeight;++C)for(var E=C*r-c,_=Math.max(0,E),I=Math.min(e.inHeight,s+E),S=x+C*m,R=0;R<e.outWidth;++R){for(var N=R*o-l,k=Math.max(0,N),A=Math.min(e.inWidth,u+N),T=h,D=0,F=0,M=_;M<I;M+=i){for(var O=b+M*t.strides[1],P=k;P<A;P+=a){var B=p[O+P*t.strides[2]+w];"max"===n&&B>T?T=B:"avg"===n&&(D+=B,F++)}if(isNaN(T))break}d[S+R*g+w]="avg"===n?D/F:T}return f.toTensor()},t.prototype.maxPool=function(t,e){return this.pool(t,e,"max")},t.prototype.maxPoolPositions=function(t,e){for(var n=On(e.outShape,"int32"),r=e.strideHeight,o=e.strideWidth,i=e.dilationHeight,a=e.dilationWidth,s=e.effectiveFilterHeight,u=e.effectiveFilterWidth,c=e.padInfo.top,l=e.padInfo.left,h=this.bufferSync(t),p=0;p<e.batchSize;++p)for(var f=0;f<e.inChannels;++f)for(var d=0;d<e.outHeight;++d){for(var v=d*r-c,m=v;m<0;)m+=i;for(var g=Math.min(e.inHeight,s+v),y=0;y<e.outWidth;++y){for(var x=y*o-l,b=x;b<0;)b+=a;for(var w=Math.min(e.inWidth,u+x),C=Number.NEGATIVE_INFINITY,E=-1,_=m;_<g;_+=i)for(var I=_-v,S=b;S<w;S+=a){var R=S-x,N=h.get(p,_,S,f);N>C&&(C=N,E=I*u+R)}n.set(E,p,d,y,f)}}return n.toTensor()},t.prototype.maxPoolBackprop=function(t,e,n,r){this.assertNotComplex([e,n],"maxPoolBackprop");for(var o=this.maxPoolPositions(e,r),i=r.strideHeight,a=r.strideWidth,s=r.dilationHeight,u=r.dilationWidth,c=r.effectiveFilterHeight,l=r.effectiveFilterWidth,h=l-1-r.padInfo.left,p=c-1-r.padInfo.top,f=On(e.shape,"float32"),d=this.bufferSync(o),v=this.bufferSync(t),m=0;m<r.batchSize;++m)for(var g=0;g<r.inChannels;++g)for(var y=0;y<r.inHeight;++y)for(var x=0;x<r.inWidth;++x){for(var b=y-p,w=x-h,C=0,E=0;E<c;E+=s){var _=(b+E)/i;if(!(_<0||_>=r.outHeight||Math.floor(_)!==_))for(var I=0;I<l;I+=u){var S=(w+I)/a;if(!(S<0||S>=r.outWidth||Math.floor(S)!==S)){var R=c*l-1-d.get(m,_,S,g)===E*l+I?1:0;0!==R&&(C+=v.get(m,_,S,g)*R)}}}f.set(C,m,y,x,g)}return f.toTensor()},t.prototype.avgPoolBackprop=function(t,e,n){this.assertNotComplex([t,e],"avgPoolBackprop");for(var r=n.strideHeight,o=n.strideWidth,i=n.filterHeight,a=n.filterWidth,s=n.dilationHeight,u=n.dilationWidth,c=n.effectiveFilterHeight,l=n.effectiveFilterWidth,h=l-1-n.padInfo.left,p=c-1-n.padInfo.top,f=On(e.shape,"float32"),d=1/(i*a),v=this.bufferSync(t),m=0;m<n.batchSize;++m)for(var g=0;g<n.inChannels;++g)for(var y=0;y<n.inHeight;++y)for(var x=0;x<n.inWidth;++x){for(var b=y-p,w=x-h,C=0,E=0;E<c;E+=s){var _=(b+E)/r;if(!(_<0||_>=n.outHeight||Math.floor(_)!==_))for(var I=0;I<l;I+=u){var S=(w+I)/o;S<0||S>=n.outWidth||Math.floor(S)!==S||(C+=v.get(m,_,S,g))}}f.set(C*d,m,y,x,g)}return f.toTensor()},t.prototype.cast=function(t,e){return Vr(t,e,this)},t.prototype.reshape=function(t,e){return Gr(t,e)},t.prototype.avgPool=function(t,e){return this.assertNotComplex(t,"avgPool"),this.pool(t,e,"avg").toFloat()},t.prototype.resizeBilinear=function(t,e,n,r){this.assertNotComplex(t,"resizeBilinear");for(var o=t.shape,i=o[0],a=o[1],s=o[2],u=o[3],c=this.readSync(t.dataId),l=new Float32Array(_([i,e,n,u])),h=[r&&e>1?a-1:a,r&&n>1?s-1:s],p=[r&&e>1?e-1:e,r&&n>1?n-1:n],f=0,d=h[0]/p[0],v=h[1]/p[1],m=0;m<i;m++)for(var g=0;g<e;g++)for(var y=d*g,x=Math.floor(y),b=y-x,w=Math.min(a-1,Math.ceil(y)),C=m*t.strides[0]+x*t.strides[1],E=m*t.strides[0]+w*t.strides[1],I=0;I<n;I++)for(var S=v*I,R=Math.floor(S),N=S-R,k=Math.min(s-1,Math.ceil(S)),A=C+R*t.strides[2],T=E+R*t.strides[2],D=C+ +k*t.strides[2],F=E+k*t.strides[2],M=0;M<u;M++){var O=c[A+M],P=c[T+M],B=O+(c[D+M]-O)*N,L=B+(P+(c[F+M]-P)*N-B)*b;l[f++]=L}return en(l,[i,e,n,u])},t.prototype.resizeBilinearBackprop=function(t,e,n){this.assertNotComplex([t,e],"resizeBilinearBackprop");for(var r=e.shape,o=r[0],i=r[1],a=r[2],s=r[3],u=t.shape,c=u[1],l=u[2],h=new Float32Array(o*i*a*s),p=[n&&c>1?i-1:i,n&&l>1?a-1:a],f=[n&&c>1?c-1:c,n&&l>1?l-1:l],d=p[0]/f[0],v=p[1]/f[1],m=this.readSync(t.dataId),g=0,y=0;y<o;y++)for(var x=y*e.strides[0],b=0;b<c;b++)for(var w=b*d,C=Math.floor(w),E=Math.min(Math.ceil(w),i-1),_=x+C*e.strides[1],I=x+E*e.strides[1],S=w-C,R=1-S,N=0;N<l;N++)for(var k=N*v,A=Math.floor(k),T=Math.min(Math.ceil(k),a-1),D=k-A,F=1-D,M=_+A*e.strides[2],O=_+T*e.strides[2],P=I+A*e.strides[2],B=I+T*e.strides[2],L=R*F,W=R*D,z=S*F,U=S*D,V=0;V<s;V++){var G=m[g++];h[M+V]+=G*L,h[O+V]+=G*W,h[P+V]+=G*z,h[B+V]+=G*U}return un(h,[o,a,i,s],e.dtype)},t.prototype.resizeNearestNeighbor=function(t,e,n,r){this.assertNotComplex(t,"resizeNearestNeighbor");for(var o=t.shape,i=o[0],a=o[1],s=o[2],u=o[3],c=this.readSync(t.dataId),l=new Float32Array(i*e*n*u),h=[r&&e>1?a-1:a,r&&n>1?s-1:s],p=[r&&e>1?e-1:e,r&&n>1?n-1:n],f=h[0]/p[0],d=h[1]/p[1],v=0,m=0;m<i;m++)for(var g=m*t.strides[0],y=0;y<e;y++)for(var x=f*y,b=g+Math.min(a-1,r?Math.round(x):Math.floor(x))*t.strides[1],w=0;w<n;w++)for(var C=d*w,E=b+Math.min(s-1,r?Math.round(C):Math.floor(C))*t.strides[2],_=0;_<u;_++){var I=c[E+_];l[v++]=I}return en(l,[i,e,n,u],t.dtype)},t.prototype.resizeNearestNeighborBackprop=function(t,e,n){this.assertNotComplex([t,e],"resizeNearestNeighborBackprop");for(var r=e.shape,o=r[0],i=r[1],a=r[2],s=r[3],u=t.shape,c=u[1],l=u[2],h=new Float32Array(o*i*a*s),p=this.readSync(t.dataId),f=[n&&c>1?i-1:i,n&&l>1?a-1:a],d=[n&&c>1?c-1:c,n&&l>1?l-1:l],v=f[0]/d[0],m=f[1]/d[1],g=1/v,y=1/m,x=2*Math.ceil(g)+2,b=2*Math.ceil(y)+2,w=0;w<o;w++)for(var C=w*e.strides[0],E=0;E<i;E++)for(var _=C+E*e.strides[1],I=Math.floor(E*g),S=Math.floor(I-x/2),R=0;R<a;R++)for(var N=_+R*e.strides[2],k=Math.floor(R*y),A=Math.floor(k-b/2),T=0;T<s;T++){for(var D=0,F=0;F<x;F++){var M=F+S;if(!(M<0||M>=c)){var O=C+M*t.strides[1],P=M*v;if(E===Math.min(i-1,n?Math.round(P):Math.floor(P)))for(var B=0;B<b;B++){var L=B+A;if(!(L<0||L>=l)){var W=O+L*t.strides[2],z=L*m;R===Math.min(a-1,n?Math.round(z):Math.floor(z))&&(D+=p[W+T])}}}}h[N+T]=D}return un(h,e.shape,e.dtype)},t.prototype.batchNormalization=function(t,e,n,r,o,i){this.assertNotComplex([t,e,n,o,i],"batchNorm");for(var a=this.readSync(t.dataId),s=this.readSync(e.dataId),u=this.readSync(n.dataId),c=o?this.readSync(o.dataId):new Float32Array([1]),l=i?this.readSync(i.dataId):new Float32Array([0]),h=new Float32Array(a.length),p=l.length,f=c.length,d=u.length,v=s.length,m=0,g=0,y=0,x=0,b=0;b<a.length;++b)h[b]=l[m++]+(a[b]-s[g++])*c[y++]/Math.sqrt(u[x++]+r),m>=p&&(m=0),g>=v&&(g=0),y>=f&&(y=0),x>=d&&(x=0);return un(h,t.shape)},t.prototype.localResponseNormalization4D=function(t,e,n,r,o){this.assertNotComplex(t,"localResponseNormalization4D");var i=t.shape[3],a=i-1,s=this.readSync(t.dataId),u=t.size,c=new Float32Array(u);function l(t){for(var n=t%i,r=t-n+Math.max(0,n-e),o=t-n+Math.min(n+e,a),u=0;r<=o;r++){var c=s[r];u+=c*c}return u}for(var h=0;h<u;h++){var p=l(h),f=s[h]*Math.pow(n+r*p,-o);c[h]=f}return un(c,t.shape)},t.prototype.LRNGrad=function(t,e,n,r,o,i,a){this.assertNotComplex(t,"LRNGrad");for(var s=t.shape[3],u=this.readSync(t.dataId),c=this.readSync(e.dataId),l=this.readSync(n.dataId),h=new Float32Array(t.size),p=t.size,f=0;f<p;f++){for(var d=f%s,v=f-d+Math.max(0,d-r),m=f-d+Math.min(s,d+r+1),g=0,y=v;y<m;y++)g+=Math.pow(c[y],2);for(g=i*g+o,y=v;y<m;y++){var x=-2*i*a*c[y]*l[f]/g;f===y&&(x+=Math.pow(g,-a)),x*=u[f],h[y]+=x}}return un(h,t.shape)},t.prototype.multinomial=function(t,e,n,r){this.assertNotComplex(t,"multinomial");for(var o=e?t:Ir(t),i=o.shape[0],a=o.shape[1],s=pn([i,n],"int32"),u=this.readSync(s.dataId),c=this.readSync(o.dataId),l=0;l<i;++l){var h=l*a,p=new Float32Array(a-1);p[0]=c[h];for(var f=1;f<p.length;++f)p[f]=p[f-1]+c[h+f];for(var d=Dn(r.toString()),v=l*n,m=0;m<n;++m){var g=d();u[v+m]=p.length;for(var y=0;y<p.length;y++)if(g<p[y]){u[v+m]=y;break}}}return s},t.prototype.oneHot=function(t,e,n,r){this.assertNotComplex(t,"oneHot");var o=new Float32Array(t.size*e);o.fill(r);for(var i=this.readSync(t.dataId),a=0;a<t.size;++a)i[a]>=0&&i[a]<e&&(o[a*e+i[a]]=n);return an(o,[t.size,e],"int32")},t.prototype.nonMaxSuppression=function(t,e,n,r,o){return this.assertNotComplex(t,"nonMaxSuppression"),Yr(this.readSync(t.dataId),this.readSync(e.dataId),n,r,o)},t.prototype.fft=function(t){return this.fftBatch(t,!1)},t.prototype.ifft=function(t){return this.fftBatch(t,!0)},t.prototype.fftBatch=function(t,e){for(var n=t.shape[0],r=t.shape[1],o=On(t.shape,"float32"),i=On(t.shape,"float32"),a=Ze(t).as2D(n,r),s=tn(t).as2D(n,r),u=0;u<n;u++)for(var c=a.slice([u,0],[1,r]),l=s.slice([u,0],[1,r]),h=Je(c,l),p=this.readSync(this.fftImpl(h,e).dataId),f=0;f<r;f++){var d=$r(p,f);o.values[u*r+f]=d.real,i.values[u*r+f]=d.imag}return Je(o.toTensor(),i.toTensor()).as2D(n,r)},t.prototype.fftImpl=function(t,e){var n=t.as1D(),r=n.size;if(this.isExponentOf2(r)){var o=this.fftRadix2(n,r,e).as2D(t.shape[0],t.shape[1]);return e&&(o=Je(Ze(o).div(rn(r)),tn(o).div(rn(r)))),o}var i=this.readSync(t.dataId),a=function(t){for(var e=new Float32Array(t.length/2),n=new Float32Array(t.length/2),r=0;r<t.length;r+=2)e[r/2]=t[r],n[r/2]=t[r+1];return{real:e,imag:n}}(this.fourierTransformByMatmul(i,r,e));return Je(a.real,a.imag).as2D(t.shape[0],t.shape[1])},t.prototype.isExponentOf2=function(t){return 0==(t&t-1)},t.prototype.fftRadix2=function(t,e,n){if(1===e)return t;var r=this.readSync(t.dataId),o=e/2,i=function(t){for(var e=Math.ceil(t.length/4),n=new Float32Array(e),r=new Float32Array(e),o=0;o<t.length;o+=4)n[Math.floor(o/4)]=t[o],r[Math.floor(o/4)]=t[o+1];return{real:n,imag:r}}(r),a=Je(i.real,i.imag).as1D(),s=function(t){for(var e=Math.floor(t.length/4),n=new Float32Array(e),r=new Float32Array(e),o=2;o<t.length;o+=4)n[Math.floor(o/4)]=t[o],r[Math.floor(o/4)]=t[o+1];return{real:n,imag:r}}(r),u=Je(s.real,s.imag).as1D();a=this.fftRadix2(a,o,n),u=this.fftRadix2(u,o,n);var c=function(t,e){for(var n=new Float32Array(t/2),r=new Float32Array(t/2),o=0;o<Math.ceil(t/2);o++){var i=(e?2:-2)*Math.PI*(o/t);n[o]=Math.cos(i),r[o]=Math.sin(i)}return{real:n,imag:r}}(e,n),l=Je(c.real,c.imag).mul(u),h=a.add(l),p=a.sub(l),f=Ze(h).concat(Ze(p)),d=tn(h).concat(tn(p));return Je(f,d).as1D()},t.prototype.fourierTransformByMatmul=function(t,e,n){for(var r=new Float32Array(2*e),o=0;o<e;o++){for(var i=0,a=0,s=0;s<e;s++){var u=Xr(o*s,e,n),c=$r(t,s);i+=c.real*u.real-c.imag*u.imag,a+=c.real*u.imag+c.imag*u.real}n&&(i/=e,a/=e),Kr(r,i,a,o)}return r},t.prototype.depthToSpace=function(t,e,n){b("NHWC"===n,function(){return"Only NHWC dataFormat supported on CPU for depthToSpace. Got "+n}),b(e>1,function(){return"blockSize should be > 1 for depthToSpace, but was: "+e});for(var r=t.shape[0],o=t.shape[1],i=t.shape[2],a=t.shape[3],s=o*e,u=i*e,c=a/(e*e),l=this.readSync(t.dataId),h=new Float32Array(r*s*u*c),p=0,f=0;f<r;++f)for(var d=0;d<s;++d)for(var v=Math.floor(d/e),m=d%e,g=0;g<u;++g)for(var y=Math.floor(g/e),x=(m*e+g%e)*c,w=0;w<c;++w){var C=w+x+a*(y+i*(v+o*f));h[p++]=l[C]}return un(h,[r,s,u,c])},t.prototype.broadcastedBinaryOp=function(t,e,n,r){var o=Tr(t.shape,e.shape),i=On(o,n),a=this.readSync(t.dataId),s=this.readSync(e.dataId),u=kr(t.shape,o),c=kr(e.shape,o),l=i.values;if(u.length+c.length===0)for(var h=0;h<l.length;++h)l[h]=r(a[h%a.length],s[h%s.length]);else{var p=this.bufferSync(t),f=this.bufferSync(e),d=function(n){var o=i.indexToLoc(n),h=o.slice(-t.rank);u.forEach(function(t){return h[t]=0});var d=p.locToIndex(h),v=o.slice(-e.rank);c.forEach(function(t){return v[t]=0});var m=f.locToIndex(v);l[n]=r(a[d],s[m])};for(h=0;h<l.length;++h)d(h)}return i.toTensor()},t.prototype.broadcastedBinaryComplexOp=function(t,e,n){var r=Tr(t.shape,e.shape),o=On(r,"float32"),i=On(r,"float32"),a=this.readSync(t.dataId),s=this.readSync(e.dataId),u=kr(t.shape,r),c=kr(e.shape,r),l=o.values,h=i.values;if(u.length+c.length===0)for(var p=0;p<l.length;p++){var f=p%a.length,d=p%s.length,v=n(a[2*f],a[2*f+1],s[2*d],s[2*d+1]);l[p]=v.real,h[p]=v.imag}else{var m=this.bufferSync(this.data.get(t.dataId).complexTensors.real),g=this.bufferSync(this.data.get(e.dataId).complexTensors.real),y=function(r){var i=o.indexToLoc(r),p=i.slice(-t.rank);u.forEach(function(t){return p[t]=0});var f=m.locToIndex(p),d=i.slice(-e.rank);c.forEach(function(t){return d[t]=0});var v=g.locToIndex(d),y=n(a[2*f],a[2*f+1],s[2*v],s[2*v+1]);l[r]=y.real,h[r]=y.imag};for(p=0;p<l.length;p++)y(p)}return this.complex(o.toTensor(),i.toTensor())},t.prototype.split=function(t,e,n){return Jr(t,e,n)},t.prototype.dispose=function(){},t.prototype.floatPrecision=function(){return 32},t.prototype.epsilon=function(){return 1e-7},t.prototype.cropAndResize=function(t,e,n,r,o,i){for(var a=t.shape,s=a[0],u=a[1],c=a[2],l=a[3],h=e.shape[0],p=r[0],f=r[1],d=On([h,p,f,l],t.dtype),v=this.readSync(e.dataId),m=this.readSync(n.dataId),g=this.readSync(t.dataId),y=t.strides,x=d.strides,b=0;b<h;b++){var w=4*b,C=v[w],E=v[w+1],_=v[w+2],I=v[w+3],S=m[b];if(!(S>=s))for(var R=p>1?(_-C)*(u-1)/(p-1):0,N=f>1?(I-E)*(c-1)/(f-1):0,k=0;k<p;k++){var A=p>1?C*(u-1)+k*R:.5*(C+_)*(u-1);if(A<0||A>u-1)for(var T=0;T<f;T++)for(var D=0;D<l;D++){var F=D+T*x[2]+k*x[1]+b*x[0];d.values[F]=i}else if("bilinear"===o){var M=Math.floor(A),O=Math.ceil(A),P=A-M;for(T=0;T<f;T++)if((H=f>1?E*(c-1)+T*N:.5*(E+I)*(c-1))<0||H>c-1)for(D=0;D<l;D++)F=D+T*x[2]+k*x[1]+b*x[0],d.values[F]=i;else{var B=Math.floor(H),L=Math.ceil(H),W=H-B;for(D=0;D<l;D++){var z=g[F=D+B*y[2]+M*y[1]+S*y[0]],U=g[F=D+L*y[2]+M*y[1]+S*y[0]],V=g[F=D+B*y[2]+O*y[1]+S*y[0]],G=z+(U-z)*W,j=V+(g[F=D+L*y[2]+O*y[1]+S*y[0]]-V)*W;F=D+T*x[2]+k*x[1]+b*x[0],d.values[F]=G+(j-G)*P}}}else for(T=0;T<f;++T){var H;if((H=f>1?E*(c-1)+T*N:.5*(E+I)*(c-1))<0||H>c-1)for(D=0;D<l;D++)F=D+T*x[2]+k*x[1]+b*x[0],d.values[F]=i;else{var q=Math.round(H),$=Math.round(A);for(D=0;D<l;D++){var K=D+q*y[2]+$*y[1]+S*y[0],X=D+T*x[2]+k*x[1]+b*x[0];d.values[X]=g[K]}}}}}return d.toTensor()},t.prototype.sparseToDense=function(t,e,n,r){var o=mr(0,t,n),i=o.sliceRank,a=o.numUpdates,s=o.sliceSize,u=o.strides,c=o.outputSize;return this.scatter(t,e,n,c,s,a,i,u,r,!1)},t.prototype.gatherND=function(t,e){var n=e.shape,r=n[n.length-1],o=fr(t,e),i=o[0],a=o[1],s=o[2],u=o[3];if(0===a)return en([],i,t.dtype);for(var c=new pt([a,s],t.dtype),l=this.readSync(e.dataId),h=this.readSync(t.dataId),p=0;p<a;p++){for(var f=[],d=0,v=0;v<r;v++){var m=l[p*r+v];d+=m*u[v],f.push(m)}if(d<0||d>=t.size/s)throw new Error("Invalid indices: 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y=h[d*a+g];v.push(y),m+=y*s[g]}if(m<0||m>=r/o)throw new Error("Invalid indices: "+v+" does not index into "+n);for(var x=0;x<o;x++)c?f.values[m*o+x]+=p[d*o+x]:f.values[m*o+x]=0===e.rank?p[0]:p[d*o+x]}return f.toTensor().reshape(n)},t}();Mt.registerBackend("cpu",function(){return new Kc},1);var Xc=function(){function t(){this.textEncoder=new TextEncoder,this.textDecoder=new TextDecoder}return t.prototype.encodeUTF8=function(t){return this.textEncoder.encode(t)},t.prototype.decodeUTF8=function(t){return this.textDecoder.decode(t)},t.prototype.fetch=function(t,e){return fetch(t,e)},t}();f.get("IS_BROWSER")&&f.setPlatform("browser",new Xc);var Yc,Qc=function(){function t(){var t=require("util");this.textEncoder=new t.TextEncoder,this.textDecoder=new t.TextDecoder}return t.prototype.encodeUTF8=function(t){return this.textEncoder.encode(t)},t.prototype.decodeUTF8=function(t){return 0===t.length?"":this.textDecoder.decode(t)},t.prototype.fetch=function(t,e){return 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u,c=il(e),l=i.transaction(pl,"readwrite"),h=l.objectStore(pl),p=h.put({modelPath:n.modelPath,modelArtifactsInfo:c});p.onsuccess=function(){var o=(u=i.transaction(hl,"readwrite")).objectStore(hl).put({modelPath:n.modelPath,modelArtifacts:e,modelArtifactsInfo:c});o.onsuccess=function(){return t({modelArtifactsInfo:c})},o.onerror=function(t){var e=(h=l.objectStore(pl)).delete(n.modelPath);e.onsuccess=function(){return i.close(),r(o.error)},e.onerror=function(t){return i.close(),r(o.error)}}},p.onerror=function(t){return i.close(),r(p.error)},l.oncomplete=function(){null==u?i.close():u.oncomplete=function(){return i.close()}}}},o.onerror=function(t){return r(o.error)}})},t.URL_SCHEME="indexeddb://",t}(),ml=function(t){return f.getBool("IS_BROWSER")&&!Array.isArray(t)&&t.startsWith(vl.URL_SCHEME)?(e=t.slice(vl.URL_SCHEME.length),new vl(e)):null;var e};al.registerSaveRouter(ml),al.registerLoadRouter(ml);var gl=function(){function t(){this.indexedDB=fl()}return t.prototype.listModels=function(){return c(this,void 0,void 0,function(){var t=this;return l(this,function(e){return[2,new Promise(function(e,n){var r=t.indexedDB.open("tensorflowjs",1);r.onupgradeneeded=function(){return dl(r)},r.onsuccess=function(){var t=r.result,o=t.transaction(pl,"readonly"),i=o.objectStore(pl).getAll();i.onsuccess=function(){for(var t={},n=0,r=i.result;n<r.length;n++){var o=r[n];t[o.modelPath]=o.modelArtifactsInfo}e(t)},i.onerror=function(e){return t.close(),n(i.error)},o.oncomplete=function(){return t.close()}},r.onerror=function(t){return n(r.error)}})]})})},t.prototype.removeModel=function(t){return c(this,void 0,void 0,function(){var e=this;return l(this,function(n){var r;return t=(r=t).startsWith(vl.URL_SCHEME)?r.slice(vl.URL_SCHEME.length):r,[2,new Promise(function(n,r){var o=e.indexedDB.open("tensorflowjs",1);o.onupgradeneeded=function(){return dl(o)},o.onsuccess=function(){var e,i=o.result,a=i.transaction(pl,"readwrite"),s=a.objectStore(pl),u=s.get(t);u.onsuccess=function(){if(null==u.result)return i.close(),r(new Error("Cannot find model with path '"+t+"' in IndexedDB."));var o=s.delete(t),a=function(){var o=(e=i.transaction(hl,"readwrite")).objectStore(hl).delete(t);o.onsuccess=function(){return n(u.result.modelArtifactsInfo)},o.onerror=function(t){return r(u.error)}};o.onsuccess=a,o.onerror=function(t){return a(),i.close(),r(u.error)}},u.onerror=function(t){return i.close(),r(u.error)},a.oncomplete=function(){null==e?i.close():e.oncomplete=function(){return i.close()}}},o.onerror=function(t){return r(o.error)}})]})})},t}();if(f.getBool("IS_BROWSER"))try{ul.registerManager(vl.URL_SCHEME,new gl)}catch(a){}var yl="/",xl="tensorflowjs_models",bl="info",wl="model_topology",Cl="weight_specs",El="weight_data",_l="model_metadata";function 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this.LS.setItem(this.keys.info,JSON.stringify(r)),this.LS.setItem(this.keys.topology,e),this.LS.setItem(this.keys.weightSpecs,n),this.LS.setItem(this.keys.weightData,(i=t.weightData,el?Buffer.from(i).toString("base64"):btoa(String.fromCharCode.apply(null,new Uint8Array(i))))),this.LS.setItem(this.keys.modelMetadata,JSON.stringify({format:t.format,generatedBy:t.generatedBy,convertedBy:t.convertedBy})),[2,{modelArtifactsInfo:r}]}catch(t){throw this.LS.removeItem(this.keys.info),this.LS.removeItem(this.keys.topology),this.LS.removeItem(this.keys.weightSpecs),this.LS.removeItem(this.keys.weightData),this.LS.removeItem(this.keys.modelMetadata),new Error("Failed to save model '"+this.modelPath+"' to local storage: size quota being exceeded is a possible cause of this failure: modelTopologyBytes="+r.modelTopologyBytes+", weightSpecsBytes="+r.weightSpecsBytes+", weightDataBytes="+r.weightDataBytes+".")}var i;return[2]})})},t.prototype.load=function(){return c(this,void 0,void 0,function(){var t,e,n,r,o,i,a;return l(this,function(s){if(null==(t=JSON.parse(this.LS.getItem(this.keys.info))))throw new Error("In local storage, there is no model with name '"+this.modelPath+"'");if("JSON"!==t.modelTopologyType)throw new Error("BrowserLocalStorage does not support loading non-JSON model topology yet.");if(e={},null==(n=JSON.parse(this.LS.getItem(this.keys.topology))))throw new Error("In local storage, the topology of model '"+this.modelPath+"' is missing.");if(e.modelTopology=n,null==(r=JSON.parse(this.LS.getItem(this.keys.weightSpecs))))throw new Error("In local storage, the weight specs of model '"+this.modelPath+"' are missing.");if(e.weightSpecs=r,null!=(o=this.LS.getItem(this.keys.modelMetadata))&&(i=JSON.parse(o),e.format=i.format,e.generatedBy=i.generatedBy,e.convertedBy=i.convertedBy),null==(a=this.LS.getItem(this.keys.weightData)))throw new Error("In local storage, the binary weight values of model '"+this.modelPath+"' are missing.");return e.weightData=function(t){if(el){var e=Buffer.from(t,"base64");return e.buffer.slice(e.byteOffset,e.byteOffset+e.byteLength)}for(var n=atob(t),r=new Uint8Array(n.length),o=0;o<n.length;++o)r.set([n.charCodeAt(o)],o);return r.buffer}(a),[2,e]})})},t.URL_SCHEME="localstorage://",t}(),Nl=function(t){return f.getBool("IS_BROWSER")&&!Array.isArray(t)&&t.startsWith(Rl.URL_SCHEME)?(e=t.slice(Rl.URL_SCHEME.length),new Rl(e)):null;var e};al.registerSaveRouter(Nl),al.registerLoadRouter(Nl);var kl=function(){function t(){b(f.getBool("IS_BROWSER"),function(){return"Current environment is not a web browser"}),b(void 0!==window.localStorage,function(){return"Current browser does not appear to support localStorage"}),this.LS=window.localStorage}return t.prototype.listModels=function(){return c(this,void 0,void 0,function(){var t,e,n,r,o,i;return 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s(e,t),e.prototype.applyGradients=function(t){var e=this,n=Array.isArray(t)?t.map(function(t){return t.name}):Object.keys(t);Fe(function(){var r=Wu(1,e.accBeta1),o=_u(-e.learningRate,e.iteration.mul(e.decay).add(1));n.forEach(function(n,i){var a=Mt.registeredVariables[n];null==e.accumulatedFirstMoment[i]&&(e.accumulatedFirstMoment[i]={originalName:n+"/m",variable:gn(a).variable(!1)}),null==e.accumulatedWeightedInfNorm[i]&&(e.accumulatedWeightedInfNorm[i]={originalName:n+"/v",variable:gn(a).variable(!1)});var s=Array.isArray(t)?t[i].tensor:t[n];if(null!=s){var u=e.accumulatedFirstMoment[i].variable,c=e.accumulatedWeightedInfNorm[i].variable,l=u.mul(e.beta1).add(s.mul(1-e.beta1)),h=c.mul(e.beta2),p=s.abs(),f=h.maximum(p);u.assign(l),c.assign(f);var d=o.div(r).mul(l.div(f.add(e.epsilon))).add(a);a.assign(d)}}),e.iteration.assign(e.iteration.add(1)),e.accBeta1.assign(e.accBeta1.mul(e.beta1))}),this.incrementIterations()},e.prototype.dispose=function(){this.accBeta1.dispose(),this.iteration.dispose(),null!=this.accumulatedFirstMoment&&Me(this.accumulatedFirstMoment.map(function(t){return t.variable})),null!=this.accumulatedWeightedInfNorm&&Me(this.accumulatedWeightedInfNorm.map(function(t){return t.variable}))},e.prototype.getWeights=function(){return c(this,void 0,void 0,function(){return l(this,function(t){throw new Error("getWeights() is not implemented for Adamax yet.")})})},e.prototype.setWeights=function(t){return c(this,void 0,void 0,function(){return l(this,function(t){throw new Error("setWeights() is not implemented for Adamax yet.")})})},e.prototype.getConfig=function(){return{learningRate:this.learningRate,beta1:this.beta1,beta2:this.beta2,epsilon:this.epsilon,decay:this.decay}},e.fromConfig=function(t,e){return new t(e.learningRate,e.beta1,e.beta2,e.epsilon,e.decay)},e.className="Adamax",e}(sh);Jl(hh);var ph=function(t){function e(e){var n=t.call(this)||this;return n.learningRate=e,n.setLearningRate(e),n}return s(e,t),e.prototype.applyGradients=function(t){var e=this;(Array.isArray(t)?t.map(function(t){return t.name}):Object.keys(t)).forEach(function(n,r){var o=Array.isArray(t)?t[r].tensor:t[n];if(null!=o){var i=Mt.registeredVariables[n];Fe(function(){var t=e.c.mul(o).add(i);i.assign(t)})}}),this.incrementIterations()},e.prototype.setLearningRate=function(t){this.learningRate=t,null!=this.c&&this.c.dispose(),this.c=Oe(rn(-t))},e.prototype.dispose=function(){this.c.dispose()},e.prototype.getWeights=function(){return c(this,void 0,void 0,function(){return l(this,function(t){switch(t.label){case 0:return[4,this.saveIterations()];case 1:return[2,[t.sent()]]}})})},e.prototype.setWeights=function(t){return c(this,void 0,void 0,function(){return l(this,function(e){switch(e.label){case 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t,n=e.m.mul(i).add(a);t=e.useNesterov?e.c.mul(a.add(n.mul(e.m))).add(o):e.c.mul(n).add(o),i.assign(n),o.assign(t)})}),this.incrementIterations()},e.prototype.dispose=function(){this.m.dispose(),null!=this.accumulations&&Me(this.accumulations.map(function(t){return t.variable}))},e.prototype.setMomentum=function(t){this.momentum=t},e.prototype.getWeights=function(){return c(this,void 0,void 0,function(){return l(this,function(t){switch(t.label){case 0:return[4,this.saveIterations()];case 1:return[2,[t.sent()].concat(this.accumulations.map(function(t){return{name:t.originalName,tensor:t.variable}}))]}})})},e.prototype.setWeights=function(t){return c(this,void 0,void 0,function(){return l(this,function(e){switch(e.label){case 0:return[4,this.extractIterations(t)];case 1:return t=e.sent(),this.accumulations=t.map(function(t){return{originalName:t.name,variable:t.tensor.variable(!1)}}),[2]}})})},e.prototype.getConfig=function(){return{learningRate:this.learningRate,momentum:this.momentum,useNesterov:this.useNesterov}},e.fromConfig=function(t,e){return new t(e.learningRate,e.momentum,e.useNesterov)},e.className="MomentumOptimizer",e}(ph);Jl(fh);var dh=function(t){function e(e,n,r,o,i){void 0===n&&(n=.9),void 0===r&&(r=0),void 0===o&&(o=null),void 0===i&&(i=!1);var a=t.call(this)||this;return a.learningRate=e,a.decay=n,a.momentum=r,a.epsilon=o,a.accumulatedMeanSquares=[],a.accumulatedMoments=[],a.accumulatedMeanGrads=[],a.centered=i,null==o&&(a.epsilon=Mt.backend.epsilon()),a}return s(e,t),e.prototype.applyGradients=function(t){var e=this;(Array.isArray(t)?t.map(function(t){return t.name}):Object.keys(t)).forEach(function(n,r){var 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i={anchorPosition:Kh.BOTTOM_LEFT,backgroundColor:this.boxColor};this.drawLabelOptions=new Jh(Object.assign({},i,o))},ep=function(){function t(t,e){void 0===e&&(e={}),this.box=new Oh(t),this.options=new tp(e)}return t.prototype.draw=function(t){var e=Qh(t),n=this.options,r=n.boxColor,o=n.lineWidth,i=this.box,a=i.x,s=i.y,u=i.width,c=i.height;e.strokeStyle=r,e.lineWidth=o,e.strokeRect(a,s,u,c);var l=this.options.label;l&&new Zh([l],{x:a-o/2,y:s},this.options.drawLabelOptions).draw(t)},t}(),np=Object.freeze({DrawBoxOptions:tp,DrawBox:ep,get AnchorPosition(){return Kh},DrawTextFieldOptions:Jh,DrawTextField:Zh});function rp(t,e,n,r){return void 0===n&&(n="same"),void 0===r&&(r=!1),Fe(function(){var o=bu(Ss(t,e.filters,[1,1],n),e.bias);return r?Yu(o):o})}function op(t,e){Object.keys(t).forEach(function(n){e.some(function(t){return t.originalPath===n})||t[n].dispose()})}function ip(t,e){return function(n,r,o,i){var a=un(t(n*r*o*o),[o,o,n,r]),s=on(t(r));return 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Cp(t,e,n){void 0===n&&(n=!1);var r=Xh.getEnv(),o=r.Image,i=r.Canvas;if(!(t instanceof o||t instanceof i))throw new Error("imageToSquare - expected arg0 to be HTMLImageElement | HTMLCanvasElement");var a=mp(t),s=e/Math.max(a.height,a.width),u=s*a.width,c=s*a.height,l=gp({width:e,height:e}),h=t instanceof i?t:yp(t),p=Math.abs(u-c)/2,f=n&&u<c?p:0,d=n&&c<u?p:0;return Qh(l).drawImage(h,f,d,u,c),l}function Ep(t){var e=Xh.getEnv(),n=e.Image,r=e.Canvas,o=e.Video;return t instanceof n||t instanceof r||t instanceof o}function _p(t,e){return o(this,void 0,void 0,function(){var n,r,o,a;return i(this,function(i){switch(i.label){case 0:return n=pp(t,e),r=n.manifestUri,o=n.modelBaseUri,[4,bp(r)];case 1:return a=i.sent(),[2,Hl.loadWeights(a,o)]}})})}function Ip(t,e){return void 0===e&&(e=!1),Fe(function(){var n=t.shape.slice(1),r=n[0],o=n[1];if(r===o)return t;var i=Math.abs(r-o),a=Math.round(i*(e?.5:1)),s=r>o?2:1,u=function(e){var n=t.shape.slice();return 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t.getReshapedInputDimensions(n)})},enumerable:!0,configurable:!0}),t.prototype.getInput=function(t){return this.canvases[t]||this.imageTensors[t]},t.prototype.getInputDimensions=function(t){return this._inputDimensions[t]},t.prototype.getInputHeight=function(t){return this._inputDimensions[t][0]},t.prototype.getInputWidth=function(t){return this._inputDimensions[t][1]},t.prototype.getReshapedInputDimensions=function(t){if("number"!=typeof this.inputSize)throw new Error("getReshapedInputDimensions - inputSize not set, toBatchTensor has not been called yet");return kh({width:this.getInputWidth(t),height:this.getInputHeight(t)},this.inputSize)},t.prototype.toBatchTensor=function(t,e){var n=this;return void 0===e&&(e=!0),this._inputSize=t,Fe(function(){var r=Th(n.batchSize,0,1).map(function(r){var o=n.getInput(r);if(o instanceof mt){var i=_h(o)?o:o.expandDims();return(i=Ip(i,e)).shape[1]===t&&i.shape[2]===t||(i=jc.resizeBilinear(i,[t,t])),i.as3D(t,t,3)}if(o instanceof 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new Error("toNetInput -"+n(r)+" tf.Tensor4D with batchSize "+o+" passed, but not supported in input array")}}),[4,Promise.all(r.map(function(t){return Ep(t)&&dp(t)}))];case 1:return o.sent(),[2,new Sp(r,Array.isArray(t))]}})})}var Np=function(){function t(t){this._name=t,this._params=void 0,this._paramMappings=[]}return Object.defineProperty(t.prototype,"params",{get:function(){return this._params},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"paramMappings",{get:function(){return this._paramMappings},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"isLoaded",{get:function(){return!!this.params},enumerable:!0,configurable:!0}),t.prototype.getParamFromPath=function(t){var e=this.traversePropertyPath(t);return e.obj[e.objProp]},t.prototype.reassignParamFromPath=function(t,e){var n=this.traversePropertyPath(t),r=n.obj,o=n.objProp;r[o].dispose(),r[o]=e},t.prototype.getParamList=function(){var t=this;return this._paramMappings.map(function(e){var n=e.paramPath;return{path:n,tensor:t.getParamFromPath(n)}})},t.prototype.getTrainableParams=function(){return this.getParamList().filter(function(t){return t.tensor instanceof gt})},t.prototype.getFrozenParams=function(){return this.getParamList().filter(function(t){return!(t.tensor instanceof gt)})},t.prototype.variable=function(){var t=this;this.getFrozenParams().forEach(function(e){var n=e.path,r=e.tensor;t.reassignParamFromPath(n,r.variable())})},t.prototype.freeze=function(){var t=this;this.getTrainableParams().forEach(function(e){var n=e.path,r=e.tensor,o=en(r.dataSync());r.dispose(),t.reassignParamFromPath(n,o)})},t.prototype.dispose=function(t){void 0===t&&(t=!0),this.getParamList().forEach(function(e){if(t&&e.tensor.isDisposed)throw new Error("param tensor has already been disposed for path "+e.path);e.tensor.dispose()}),this._params=void 0},t.prototype.serializeParams=function(){return new Float32Array(this.getParamList().map(function(t){var e=t.tensor;return 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Promise.all(t.map(function(t){return e(t).then(function(t){return t.buffer})}))},s=Hl.weightsLoaderFactory(a),l=(c=JSON).parse,[4,e(r)];case 1:return u=l.apply(c,[i.sent().toString()]),[4,s(u,o)];case 2:return h=i.sent(),this.loadFromWeightMap(h),[2]}})})},t.prototype.loadFromWeightMap=function(t){var e=this.extractParamsFromWeigthMap(t),n=e.paramMappings,r=e.params;this._paramMappings=n,this._params=r},t.prototype.extractWeights=function(t){var e=this.extractParams(t),n=e.paramMappings,r=e.params;this._paramMappings=n,this._params=r},t.prototype.traversePropertyPath=function(t){if(!this.params)throw new Error("traversePropertyPath - model has no loaded params");var e=t.split("/").reduce(function(e,n){if(!e.nextObj.hasOwnProperty(n))throw new Error("traversePropertyPath - object does not have property "+n+", for path "+t);return{obj:e.nextObj,objProp:n,nextObj:e.nextObj[n]}},{nextObj:this.params}),n=e.obj,r=e.objProp;if(!(n&&r&&n[r]instanceof mt))throw new Error("traversePropertyPath - 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Pp(t){return Fe(function(){var e=Fu(t,rn(.10000000149011612));return bu(Yu(Wu(t,e)),e)})}function Bp(t,e){return Fe(function(){var n=qn(t,[[0,0],[1,1],[1,1],[0,0]]);return n=Ss(n,e.conv.filters,[1,1],"valid"),n=Wu(n,e.bn.sub),n=Fu(n,e.bn.truediv),Pp(n=bu(n,e.conv.bias))})}function Lp(t,e){return Fe(function(){var n=qn(t,[[0,0],[1,1],[1,1],[0,0]]);return n=As(n,e.depthwise_filter,e.pointwise_filter,[1,1],"valid"),Pp(n=bu(n,e.bias))})}function Wp(t,e){var n=ip(t,e);var r=up(t,e);return{extractConvParams:n,extractConvWithBatchNormParams:function(r,o,i){return{conv:n(r,o,3,i+"/conv"),bn:function(n,r){var o=on(t(n)),i=on(t(n));return e.push({paramPath:r+"/sub"},{paramPath:r+"/truediv"}),{sub:o,truediv:i}}(o,i+"/bn")}},extractSeparableConvParams:r}}function zp(t,e){var n=lp(t,e);function r(t){return{filters:n(t+"/filters",4),bias:n(t+"/bias",1)}}return{extractConvParams:r,extractConvWithBatchNormParams:function(t){return{conv:r(t+"/conv"),bn:function(t){return{sub:n(t+"/sub",1),truediv:n(t+"/truediv",1)}}(t+"/bn")}},extractSeparableConvParams:cp(n)}}!function(t){t[t.XS=224]="XS",t[t.SM=320]="SM",t[t.MD=416]="MD",t[t.LG=608]="LG"}(Fp||(Fp={}));var Up=function(){function t(t){var e=void 0===t?{}:t,n=e.inputSize,r=e.scoreThreshold;if(this._name="TinyYolov2Options",this._inputSize=n||416,this._scoreThreshold=r||.5,"number"!=typeof this._inputSize||this._inputSize%32!=0)throw new Error(this._name+" - expected inputSize to be a number divisible by 32");if("number"!=typeof this._scoreThreshold||this._scoreThreshold<=0||this._scoreThreshold>=1)throw new Error(this._name+" - expected scoreThreshold to be a number between 0 and 1")}return Object.defineProperty(t.prototype,"inputSize",{get:function(){return this._inputSize},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"scoreThreshold",{get:function(){return this._scoreThreshold},enumerable:!0,configurable:!0}),t}(),Vp=function(t){function e(e){var n=t.call(this,"TinyYolov2")||this;return Op(e),n._config=e,n}return n(e,t),Object.defineProperty(e.prototype,"config",{get:function(){return this._config},enumerable:!0,configurable:!0}),Object.defineProperty(e.prototype,"withClassScores",{get:function(){return this.config.withClassScores||this.config.classes.length>1},enumerable:!0,configurable:!0}),Object.defineProperty(e.prototype,"boxEncodingSize",{get:function(){return 5+(this.withClassScores?this.config.classes.length:0)},enumerable:!0,configurable:!0}),e.prototype.runTinyYolov2=function(t,e){var n=Bp(t,e.conv0);return n=Bp(n=Vs(n,[2,2],[2,2],"same"),e.conv1),n=Bp(n=Vs(n,[2,2],[2,2],"same"),e.conv2),n=Bp(n=Vs(n,[2,2],[2,2],"same"),e.conv3),n=Bp(n=Vs(n,[2,2],[2,2],"same"),e.conv4),n=Bp(n=Vs(n,[2,2],[2,2],"same"),e.conv5),n=Bp(n=Vs(n,[2,2],[1,1],"same"),e.conv6),rp(n=Bp(n,e.conv7),e.conv8,"valid",!1)},e.prototype.runMobilenet=function(t,e){var n=this.config.isFirstLayerConv2d?Pp(rp(t,e.conv0,"valid",!1)):Lp(t,e.conv0);return n=Lp(n=Vs(n,[2,2],[2,2],"same"),e.conv1),n=Lp(n=Vs(n,[2,2],[2,2],"same"),e.conv2),n=Lp(n=Vs(n,[2,2],[2,2],"same"),e.conv3),n=Lp(n=Vs(n,[2,2],[2,2],"same"),e.conv4),n=Lp(n=Vs(n,[2,2],[2,2],"same"),e.conv5),n=Vs(n,[2,2],[1,1],"same"),n=e.conv6?Lp(n,e.conv6):n,rp(n=e.conv7?Lp(n,e.conv7):n,e.conv8,"valid",!1)},e.prototype.forwardInput=function(t,e){var n=this,r=this.params;if(!r)throw new Error("TinyYolov2 - load model before inference");return Fe(function(){var o=t.toBatchTensor(e,!1).toFloat();return o=(o=n.config.meanRgb?Tp(o,n.config.meanRgb):o).div(rn(256)),n.config.withSeparableConvs?n.runMobilenet(o,r):n.runTinyYolov2(o,r)})},e.prototype.forward=function(t,e){return o(this,void 0,void 0,function(){var n;return i(this,function(r){switch(r.label){case 0:return n=this.forwardInput,[4,Rp(t)];case 1:return[4,n.apply(this,[r.sent(),e])];case 2:return[2,r.sent()]}})})},e.prototype.detect=function(t,e){return void 0===e&&(e={}),o(this,void 0,void 0,function(){var n,r,o,a,s,u,c,l,h,p,f,d,v,m=this;return i(this,function(i){switch(i.label){case 0:return n=new Up(e),r=n.inputSize,o=n.scoreThreshold,[4,Rp(t)];case 1:return a=i.sent(),[4,this.forwardInput(a,r)];case 2:return s=i.sent(),u=Fe(function(){return ar(s)[0].expandDims()}),c={width:a.getInputWidth(0),height:a.getInputHeight(0)},[4,this.extractBoxes(u,a.getReshapedInputDimensions(0),o)];case 3:return l=i.sent(),s.dispose(),u.dispose(),h=l.map(function(t){return t.box}),p=l.map(function(t){return t.score}),f=l.map(function(t){return t.classScore}),d=l.map(function(t){return m.config.classes[t.label]}),v=Ap(h.map(function(t){return t.rescale(r)}),p,this.config.iouThreshold,!0),[2,v.map(function(t){return new Lh(p[t],f[t],d[t],h[t],c)})]}})})},e.prototype.getDefaultModelName=function(){return""},e.prototype.extractParamsFromWeigthMap=function(t){return function(t,e){var n,r=[],o=zp(t,r),i=o.extractConvParams,a=o.extractConvWithBatchNormParams,s=o.extractSeparableConvParams;if(e.withSeparableConvs){var u=e.filterSizes&&e.filterSizes.length||9;n={conv0:e.isFirstLayerConv2d?i("conv0"):s("conv0"),conv1:s("conv1"),conv2:s("conv2"),conv3:s("conv3"),conv4:s("conv4"),conv5:s("conv5"),conv6:u>7?s("conv6"):void 0,conv7:u>8?s("conv7"):void 0,conv8:i("conv8")}}else n={conv0:a("conv0"),conv1:a("conv1"),conv2:a("conv2"),conv3:a("conv3"),conv4:a("conv4"),conv5:a("conv5"),conv6:a("conv6"),conv7:a("conv7"),conv8:i("conv8")};return op(t,r),{params:n,paramMappings:r}}(t,this.config)},e.prototype.extractParams=function(t){var n=this.config.filterSizes||e.DEFAULT_FILTER_SIZES,r=n?n.length:void 0;if(7!==r&&8!==r&&9!==r)throw new Error("TinyYolov2 - expected 7 | 8 | 9 convolutional filters, but found "+r+" filterSizes in config");return function(t,e,n,r){var o,i=hp(t),a=i.extractWeights,s=i.getRemainingWeights,u=[],c=Wp(a,u),l=c.extractConvParams,h=c.extractConvWithBatchNormParams,p=c.extractSeparableConvParams;if(e.withSeparableConvs){var f=r[0],d=r[1],v=r[2],m=r[3],g=r[4],y=r[5],x=r[6],b=r[7],w=r[8];o={conv0:e.isFirstLayerConv2d?l(f,d,3,"conv0"):p(f,d,"conv0"),conv1:p(d,v,"conv1"),conv2:p(v,m,"conv2"),conv3:p(m,g,"conv3"),conv4:p(g,y,"conv4"),conv5:p(y,x,"conv5"),conv6:b?p(x,b,"conv6"):void 0,conv7:w?p(b,w,"conv7"):void 0,conv8:l(w||b||x,5*n,1,"conv8")}}else{f=r[0],d=r[1],v=r[2],m=r[3],g=r[4],y=r[5],x=r[6],b=r[7],w=r[8];o={conv0:h(f,d,"conv0"),conv1:h(d,v,"conv1"),conv2:h(v,m,"conv2"),conv3:h(m,g,"conv3"),conv4:h(g,y,"conv4"),conv5:h(y,x,"conv5"),conv6:h(x,b,"conv6"),conv7:h(b,w,"conv7"),conv8:l(w,5*n,1,"conv8")}}if(0!==s().length)throw new Error("weights remaing after extract: "+s().length);return{params:o,paramMappings:u}}(t,this.config,this.boxEncodingSize,n)},e.prototype.extractBoxes=function(t,e,n){return o(this,void 0,void 0,function(){var o,a,s,u,c,l,h,p,f,d,v,m,g,y,x,b,w,C,E,_,I,S,R,N,k,A,T,D,F,M=this;return i(this,function(i){switch(i.label){case 0:return o=e.width,a=e.height,s=Math.max(o,a),u=s/o,c=s/a,l=t.shape[1],h=this.config.anchors.length,p=Fe(function(){var e=t.reshape([l,l,h,M.boxEncodingSize]);return[e.slice([0,0,0,0],[l,l,h,4]),e.slice([0,0,0,4],[l,l,h,1]),M.withClassScores?Ir(e.slice([0,0,0,5],[l,l,h,M.config.classes.length]),3):rn(0)]}),f=p[0],d=p[1],v=p[2],m=[],[4,d.array()];case 1:return g=i.sent(),[4,f.array()];case 2:y=i.sent(),x=0,i.label=3;case 3:if(!(x<l))return[3,12];b=0,i.label=4;case 4:if(!(b<l))return[3,11];w=0,i.label=5;case 5:return w<h?(C=Dp(g[x][b][w][0]),!n||C>n?(E=(b+Dp(y[x][b][w][0]))/l*u,_=(x+Dp(y[x][b][w][1]))/l*c,I=Math.exp(y[x][b][w][2])*this.config.anchors[w].x/l*u,S=Math.exp(y[x][b][w][3])*this.config.anchors[w].y/l*c,R=E-I/2,N=_-S/2,k={row:x,col:b,anchor:w},this.withClassScores?[4,this.extractPredictedClass(v,k)]:[3,7]):[3,9]):[3,10];case 6:return F=i.sent(),[3,8];case 7:F={classScore:1,label:0},i.label=8;case 8:T=(A=F).classScore,D=A.label,m.push(r({box:new Ph(R,N,R+I,N+S),score:C,classScore:C*T,label:D},k)),i.label=9;case 9:return w++,[3,5];case 10:return b++,[3,4];case 11:return x++,[3,3];case 12:return f.dispose(),d.dispose(),v.dispose(),[2,m]}})})},e.prototype.extractPredictedClass=function(t,e){return o(this,void 0,void 0,function(){var n,r,o,a;return i(this,function(i){switch(i.label){case 0:return n=e.row,r=e.col,o=e.anchor,[4,t.array()];case 1:return a=i.sent(),[2,Array(this.config.classes.length).fill(0).map(function(t,e){return a[n][r][o][e]}).map(function(t,e){return{classScore:t,label:e}}).reduce(function(t,e){return t.classScore>e.classScore?t:e})]}})})},e.DEFAULT_FILTER_SIZES=[3,16,32,64,128,256,512,1024,1024],e}(Np),Gp=Object.freeze({convLayer:rp,disposeUnusedWeightTensors:op,extractConvParamsFactory:ip,extractFCParamsFactory:ap,extractSeparableConvParamsFactory:up,loadSeparableConvParamsFactory:cp,extractWeightEntryFactory:lp,extractWeightsFactory:hp,getModelUris:pp,SeparableConvParams:sp,TinyYolov2:Vp,get TinyYolov2SizeType(){return Fp},TinyYolov2Options:Up,validateConfig:Op});function jp(t,e,n){if(void 0===n&&(n=!1),t.beginPath(),e.slice(1).forEach(function(n,r){var o=n.x,i=n.y,a=e[r];t.moveTo(a.x,a.y),t.lineTo(o,i)}),n){var r=e[e.length-1],o=e[0];if(!r||!o)return;t.moveTo(r.x,r.y),t.lineTo(o.x,o.y)}t.stroke()}var Hp=function(t){function e(e,n,r){return t.call(this,e,e,"",n,r)||this}return n(e,t),e.prototype.forSize=function(n,r){var o=t.prototype.forSize.call(this,n,r);return new e(o.score,o.relativeBox,o.imageDims)},e}(Lh);function qp(t){return t.detection instanceof Hp}function $p(t,e){var n={detection:e};return Object.assign({},t,n)}function Kp(t,e,n){return Fe(function(){var r=As(t,e.depthwise_filter,e.pointwise_filter,n,"same");return r=bu(r,e.bias)})}function Xp(t,e,n){return void 0===n&&(n=!1),Fe(function(){var r=Yu(n?bu(Ss(t,e.conv0.filters,[2,2],"same"),e.conv0.bias):Kp(t,e.conv0,[2,2])),o=Kp(r,e.conv1,[1,1]),i=Kp(Yu(bu(r,o)),e.conv2,[1,1]);return Yu(bu(r,bu(o,i)))})}function Yp(t,e,n,r){return void 0===n&&(n=!1),void 0===r&&(r=!0),Fe(function(){var o=Yu(n?bu(Ss(t,e.conv0.filters,r?[2,2]:[1,1],"same"),e.conv0.bias):Kp(t,e.conv0,r?[2,2]:[1,1])),i=Kp(o,e.conv1,[1,1]),a=Kp(Yu(bu(o,i)),e.conv2,[1,1]),s=Kp(Yu(bu(o,bu(i,a))),e.conv3,[1,1]);return Yu(bu(o,bu(i,bu(a,s))))})}function Qp(t,e){var n=ip(t,e),r=up(t,e);function o(t,e,o,i){return void 0===i&&(i=!1),{conv0:i?n(t,e,3,o+"/conv0"):r(t,e,o+"/conv0"),conv1:r(e,e,o+"/conv1"),conv2:r(e,e,o+"/conv2")}}return{extractDenseBlock3Params:o,extractDenseBlock4Params:function(t,e,n,i){void 0===i&&(i=!1);var a=o(t,e,n,i);return{conv0:a.conv0,conv1:a.conv1,conv2:a.conv2,conv3:r(e,e,n+"/conv3")}}}}function Jp(t){return function(e){return{filters:t(e+"/filters",4),bias:t(e+"/bias",1)}}}function Zp(t,e){var n=lp(t,e),r=Jp(n),o=cp(n);return{extractDenseBlock3Params:function(t,e){return void 0===e&&(e=!1),{conv0:e?r(t+"/conv0"):o(t+"/conv0"),conv1:o(t+"/conv1"),conv2:o(t+"/conv2")}},extractDenseBlock4Params:function(t,e){return void 0===e&&(e=!1),{conv0:e?r(t+"/conv0"):o(t+"/conv0"),conv1:o(t+"/conv1"),conv2:o(t+"/conv2"),conv3:o(t+"/conv3")}}}}var tf=function(t){function e(){return t.call(this,"FaceFeatureExtractor")||this}return n(e,t),e.prototype.forwardInput=function(t){var e=this.params;if(!e)throw new Error("FaceFeatureExtractor - load model before inference");return Fe(function(){var n=Yp(Tp(t.toBatchTensor(112,!0),[122.782,117.001,104.298]).div(rn(255)),e.dense0,!0);return n=Yp(n,e.dense1),n=Yp(n,e.dense2),n=Yp(n,e.dense3),n=Gs(n,[7,7],[2,2],"valid")})},e.prototype.forward=function(t){return o(this,void 0,void 0,function(){var e;return i(this,function(n){switch(n.label){case 0:return e=this.forwardInput,[4,Rp(t)];case 1:return[2,e.apply(this,[n.sent()])]}})})},e.prototype.getDefaultModelName=function(){return"face_feature_extractor_model"},e.prototype.extractParamsFromWeigthMap=function(t){return function(t){var e=[],n=Zp(t,e).extractDenseBlock4Params,r={dense0:n("dense0",!0),dense1:n("dense1"),dense2:n("dense2"),dense3:n("dense3")};return op(t,e),{params:r,paramMappings:e}}(t)},e.prototype.extractParams=function(t){return function(t){var e=[],n=hp(t),r=n.extractWeights,o=n.getRemainingWeights,i=Qp(r,e).extractDenseBlock4Params,a=i(3,32,"dense0",!0),s=i(32,64,"dense1"),u=i(64,128,"dense2"),c=i(128,256,"dense3");if(0!==o().length)throw new Error("weights remaing after extract: "+o().length);return{paramMappings:e,params:{dense0:a,dense1:s,dense2:u,dense3:c}}}(t)},e}(Np);function ef(t,e){return Fe(function(){return bu(Ds(t,e.weights),e.bias)})}function nf(t){var e={},n={};return Object.keys(t).forEach(function(r){(r.startsWith("fc")?n:e)[r]=t[r]}),{featureExtractorMap:e,classifierMap:n}}var rf=function(t){function e(e,n){var r=t.call(this,e)||this;return r._faceFeatureExtractor=n,r}return n(e,t),Object.defineProperty(e.prototype,"faceFeatureExtractor",{get:function(){return this._faceFeatureExtractor},enumerable:!0,configurable:!0}),e.prototype.runNet=function(t){var e=this,n=this.params;if(!n)throw new Error(this._name+" - load model before inference");return Fe(function(){var r=t instanceof Sp?e.faceFeatureExtractor.forwardInput(t):t;return ef(r.as2D(r.shape[0],-1),n.fc)})},e.prototype.dispose=function(e){void 0===e&&(e=!0),this.faceFeatureExtractor.dispose(e),t.prototype.dispose.call(this,e)},e.prototype.loadClassifierParams=function(t){var e=this.extractClassifierParams(t),n=e.params,r=e.paramMappings;this._params=n,this._paramMappings=r},e.prototype.extractClassifierParams=function(t){return function(t,e,n){var r=[],o=hp(t),i=o.extractWeights,a=o.getRemainingWeights,s=ap(i,r)(e,n,"fc");if(0!==a().length)throw new Error("weights remaing after extract: "+a().length);return{paramMappings:r,params:{fc:s}}}(t,this.getClassifierChannelsIn(),this.getClassifierChannelsOut())},e.prototype.extractParamsFromWeigthMap=function(t){var e=nf(t),n=e.featureExtractorMap,r=e.classifierMap;return this.faceFeatureExtractor.loadFromWeightMap(n),function(t){var e,n=[],r=lp(t,n),o={fc:(e="fc",{weights:r(e+"/weights",2),bias:r(e+"/bias",1)})};return op(t,n),{params:o,paramMappings:n}}(r)},e.prototype.extractParams=function(t){var e=this.getClassifierChannelsIn(),n=this.getClassifierChannelsOut(),r=n*e+n,o=t.slice(0,t.length-r),i=t.slice(t.length-r);return this.faceFeatureExtractor.extractWeights(o),this.extractClassifierParams(i)},e}(Np),of=["neutral","happy","sad","angry","fearful","disgusted","surprised"],af=function(){function t(t){var e=this;if(7!==t.length)throw new Error("FaceExpressions.constructor - expected probabilities.length to be 7, have: "+t.length);of.forEach(function(n,r){e[n]=t[r]})}return t.prototype.asSortedArray=function(){var t=this;return of.map(function(e){return{expression:e,probability:t[e]}}).sort(function(t,e){return e.probability-t.probability})},t}(),sf=function(t){function e(e){return void 0===e&&(e=new tf),t.call(this,"FaceExpressionNet",e)||this}return n(e,t),e.prototype.forwardInput=function(t){var e=this;return Fe(function(){return Ir(e.runNet(t))})},e.prototype.forward=function(t){return o(this,void 0,void 0,function(){var e;return i(this,function(n){switch(n.label){case 0:return e=this.forwardInput,[4,Rp(t)];case 1:return[2,e.apply(this,[n.sent()])]}})})},e.prototype.predictExpressions=function(t){return o(this,void 0,void 0,function(){var e,n,r,a,s=this;return i(this,function(u){switch(u.label){case 0:return[4,Rp(t)];case 1:return e=u.sent(),[4,this.forwardInput(e)];case 2:return n=u.sent(),[4,Promise.all(ar(n).map(function(t){return o(s,void 0,void 0,function(){var e;return i(this,function(n){switch(n.label){case 0:return[4,t.data()];case 1:return e=n.sent(),t.dispose(),[2,e]}})})}))];case 3:return r=u.sent(),n.dispose(),a=r.map(function(t){return new af(t)}),[2,e.isBatchInput?a:a[0]]}})})},e.prototype.getDefaultModelName=function(){return"face_expression_model"},e.prototype.getClassifierChannelsIn=function(){return 256},e.prototype.getClassifierChannelsOut=function(){return 7},e}(rf);function uf(t){return t.expressions instanceof af}function cf(t,e){var n={expressions:e};return Object.assign({},t,n)}var lf=function(){function t(t,e,n){void 0===n&&(n=new bh(0,0));var r=e.width,o=e.height;this._imgDims=new xh(r,o),this._shift=n,this._positions=t.map(function(t){return t.mul(new bh(r,o)).add(n)})}return Object.defineProperty(t.prototype,"shift",{get:function(){return new bh(this._shift.x,this._shift.y)},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"imageWidth",{get:function(){return this._imgDims.width},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"imageHeight",{get:function(){return this._imgDims.height},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"positions",{get:function(){return this._positions},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"relativePositions",{get:function(){var t=this;return this._positions.map(function(e){return e.sub(t._shift).div(new bh(t.imageWidth,t.imageHeight))})},enumerable:!0,configurable:!0}),t.prototype.forSize=function(t,e){return new this.constructor(this.relativePositions,{width:t,height:e})},t.prototype.shiftBy=function(t,e){return new this.constructor(this.relativePositions,this._imgDims,new bh(t,e))},t.prototype.shiftByPoint=function(t){return this.shiftBy(t.x,t.y)},t.prototype.align=function(t,e){if(void 0===e&&(e={}),t){var n=t instanceof Hp?t.box.floor():new Oh(t);return this.shiftBy(n.x,n.y).align(null,e)}var r=Object.assign({},{useDlibAlignment:!1,minBoxPadding:.2},e),o=r.useDlibAlignment,i=r.minBoxPadding;return o?this.alignDlib():this.alignMinBbox(i)},t.prototype.alignDlib=function(){var t=this.getRefPointsForAlignment(),e=t[0],n=t[1],r=t[2],o=function(t){return r.sub(t).magnitude()},i=(o(e)+o(n))/2,a=Math.floor(i/.45),s=Ah(t),u=Math.floor(Math.max(0,s.x-.5*a)),c=Math.floor(Math.max(0,s.y-.43*a));return new zh(u,c,Math.min(a,this.imageWidth+u),Math.min(a,this.imageHeight+c))},t.prototype.alignMinBbox=function(t){var e=function(t){var e=t.map(function(t){return t.x}),n=t.map(function(t){return t.y}),r=e.reduce(function(t,e){return e<t?e:t},1/0),o=n.reduce(function(t,e){return e<t?e:t},1/0),i=e.reduce(function(t,e){return t<e?e:t},0),a=n.reduce(function(t,e){return t<e?e:t},0);return new Ph(r,o,i,a)}(this.positions);return e.pad(e.width*t,e.height*t)},t.prototype.getRefPointsForAlignment=function(){throw new Error("getRefPointsForAlignment not implemented by base class")},t}(),hf=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return n(e,t),e.prototype.getJawOutline=function(){return this.positions.slice(0,17)},e.prototype.getLeftEyeBrow=function(){return this.positions.slice(17,22)},e.prototype.getRightEyeBrow=function(){return this.positions.slice(22,27)},e.prototype.getNose=function(){return this.positions.slice(27,36)},e.prototype.getLeftEye=function(){return this.positions.slice(36,42)},e.prototype.getRightEye=function(){return this.positions.slice(42,48)},e.prototype.getMouth=function(){return this.positions.slice(48,68)},e.prototype.getRefPointsForAlignment=function(){return[this.getLeftEye(),this.getRightEye(),this.getMouth()].map(Ah)},e}(lf);function pf(t){return qp(t)&&t.landmarks instanceof lf&&t.unshiftedLandmarks instanceof lf&&t.alignedRect instanceof Hp}function ff(t,e){var n=t.detection.box,r=e.shiftBy(n.x,n.y),o=r.align(),i=t.detection.imageDims,a={landmarks:r,unshiftedLandmarks:e,alignedRect:new Hp(t.detection.score,o.rescale(i.reverse()),i)};return Object.assign({},t,a)}var df=function(t){void 0===t&&(t={});var e=t.drawLines,n=void 0===e||e,r=t.drawPoints,o=void 0===r||r,i=t.lineWidth,a=t.lineColor,s=t.pointSize,u=t.pointColor;this.drawLines=n,this.drawPoints=o,this.lineWidth=i||1,this.pointSize=s||2,this.lineColor=a||"rgba(0, 255, 255, 1)",this.pointColor=u||"rgba(255, 0, 255, 1)"},vf=function(){function t(t,e){void 0===e&&(e={}),this.faceLandmarks=t,this.options=new df(e)}return t.prototype.draw=function(t){var e=Qh(t),n=this.options,r=n.drawLines,o=n.drawPoints,i=n.lineWidth,a=n.lineColor,s=n.pointSize,u=n.pointColor;if(r&&this.faceLandmarks instanceof hf&&(e.strokeStyle=a,e.lineWidth=i,jp(e,this.faceLandmarks.getJawOutline()),jp(e,this.faceLandmarks.getLeftEyeBrow()),jp(e,this.faceLandmarks.getRightEyeBrow()),jp(e,this.faceLandmarks.getNose()),jp(e,this.faceLandmarks.getLeftEye(),!0),jp(e,this.faceLandmarks.getRightEye(),!0),jp(e,this.faceLandmarks.getMouth(),!0)),o){e.strokeStyle=u,e.fillStyle=u;this.faceLandmarks.positions.forEach(function(t){e.beginPath(),e.arc(t.x,t.y,s,0,2*Math.PI),e.fill()})}},t}();var mf=Object.freeze({drawContour:jp,drawDetections:function(t,e){(Array.isArray(e)?e:[e]).forEach(function(e){var n=e instanceof Hp?e.score:qp(e)?e.detection.score:void 0,r=e instanceof Hp?e.box:qp(e)?e.detection.box:new Oh(e),o=n?""+Rh(n):void 0;new ep(r,{label:o}).draw(t)})},drawFaceExpressions:function(t,e,n,r){void 0===n&&(n=.1),(Array.isArray(e)?e:[e]).forEach(function(e){var o=e instanceof af?e:uf(e)?e.expressions:void 0;if(!o)throw new Error("drawFaceExpressions - expected faceExpressions to be FaceExpressions | WithFaceExpressions<{}> or array thereof");var i=o.asSortedArray().filter(function(t){return t.probability>n}),a=qp(e)?e.detection.box.bottomLeft:r||new bh(0,0);new Zh(i.map(function(t){return t.expression+" ("+Rh(t.probability)+")"}),a).draw(t)})},DrawFaceLandmarksOptions:df,DrawFaceLandmarks:vf,drawFaceLandmarks:function(t,e){(Array.isArray(e)?e:[e]).forEach(function(e){var n=e instanceof lf?e:pf(e)?e.landmarks:void 0;if(!n)throw new Error("drawFaceLandmarks - expected faceExpressions to be FaceLandmarks | WithFaceLandmarks<WithFaceDetection<{}>> or array thereof");new vf(n).draw(t)})}});function gf(t,e){var n=[],r=hp(t),o=r.extractWeights,i=r.getRemainingWeights,a=function(t,e){var n=ip(t,e),r=up(t,e);return{extractConvParams:n,extractSeparableConvParams:r,extractReductionBlockParams:function(t,e,o){return{separable_conv0:r(t,e,o+"/separable_conv0"),separable_conv1:r(e,e,o+"/separable_conv1"),expansion_conv:n(t,e,1,o+"/expansion_conv")}},extractMainBlockParams:function(t,e){return{separable_conv0:r(t,t,e+"/separable_conv0"),separable_conv1:r(t,t,e+"/separable_conv1"),separable_conv2:r(t,t,e+"/separable_conv2")}}}}(o,n),s=a.extractConvParams,u=a.extractSeparableConvParams,c=a.extractReductionBlockParams,l=a.extractMainBlockParams,h={conv_in:s(3,32,3,"entry_flow/conv_in"),reduction_block_0:c(32,64,"entry_flow/reduction_block_0"),reduction_block_1:c(64,128,"entry_flow/reduction_block_1")},p={};Th(e,0,1).forEach(function(t){p["main_block_"+t]=l(128,"middle_flow/main_block_"+t)});var f={reduction_block:c(128,256,"exit_flow/reduction_block"),separable_conv:u(256,512,"exit_flow/separable_conv")};if(0!==i().length)throw new Error("weights remaing after extract: 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op(t,n),{params:{entry_flow:u,middle_flow:c,exit_flow:l},paramMappings:n}}function xf(t,e,n){return bu(Ss(t,e.filters,n,"same"),e.bias)}function bf(t,e,n){void 0===n&&(n=!0);var r=n?Yu(t):t;return r=Kp(r,e.separable_conv0,[1,1]),r=Kp(Yu(r),e.separable_conv1,[1,1]),r=Vs(r,[3,3],[2,2],"same"),r=bu(r,xf(t,e.expansion_conv,[2,2]))}var wf,Cf=function(t){function e(e){var n=t.call(this,"TinyXception")||this;return n._numMainBlocks=e,n}return n(e,t),e.prototype.forwardInput=function(t){var e=this,n=this.params;if(!n)throw new Error("TinyXception - load model before inference");return Fe(function(){var r=Tp(t.toBatchTensor(112,!0),[122.782,117.001,104.298]).div(rn(256)),o=Yu(xf(r,n.entry_flow.conv_in,[2,2]));return o=bf(o,n.entry_flow.reduction_block_0,!1),o=bf(o,n.entry_flow.reduction_block_1),Th(e._numMainBlocks,0,1).forEach(function(t){o=function(t,e){var n=Kp(Yu(t),e.separable_conv0,[1,1]);return n=Kp(Yu(n),e.separable_conv1,[1,1]),n=Kp(Yu(n),e.separable_conv2,[1,1]),n=bu(n,t)}(o,n.middle_flow["main_block_"+t])}),o=bf(o,n.exit_flow.reduction_block),o=Yu(Kp(o,n.exit_flow.separable_conv,[1,1]))})},e.prototype.forward=function(t){return o(this,void 0,void 0,function(){var e;return i(this,function(n){switch(n.label){case 0:return e=this.forwardInput,[4,Rp(t)];case 1:return[2,e.apply(this,[n.sent()])]}})})},e.prototype.getDefaultModelName=function(){return"tiny_xception_model"},e.prototype.extractParamsFromWeigthMap=function(t){return yf(t,this._numMainBlocks)},e.prototype.extractParams=function(t){return gf(t,this._numMainBlocks)},e}(Np);(wf=t.Gender||(t.Gender={})).FEMALE="female",wf.MALE="male";var Ef=function(e){function r(t){void 0===t&&(t=new Cf(2));var n=e.call(this,"AgeGenderNet")||this;return n._faceFeatureExtractor=t,n}return n(r,e),Object.defineProperty(r.prototype,"faceFeatureExtractor",{get:function(){return this._faceFeatureExtractor},enumerable:!0,configurable:!0}),r.prototype.runNet=function(t){var e=this,n=this.params;if(!n)throw new Error(this._name+" - load model before inference");return Fe(function(){var r=t instanceof Sp?e.faceFeatureExtractor.forwardInput(t):t,o=Gs(r,[7,7],[2,2],"valid").as2D(r.shape[0],-1);return{age:ef(o,n.fc.age).as1D(),gender:ef(o,n.fc.gender)}})},r.prototype.forwardInput=function(t){var e=this;return Fe(function(){var n=e.runNet(t),r=n.age,o=n.gender;return{age:r,gender:Ir(o)}})},r.prototype.forward=function(t){return o(this,void 0,void 0,function(){var e;return i(this,function(n){switch(n.label){case 0:return e=this.forwardInput,[4,Rp(t)];case 1:return[2,e.apply(this,[n.sent()])]}})})},r.prototype.predictAgeAndGender=function(e){return o(this,void 0,void 0,function(){var n,r,a,s,u,c,l=this;return i(this,function(h){switch(h.label){case 0:return[4,Rp(e)];case 1:return n=h.sent(),[4,this.forwardInput(n)];case 2:return r=h.sent(),a=ar(r.age),s=ar(r.gender),u=a.map(function(t,e){return{ageTensor:t,genderTensor:s[e]}}),[4,Promise.all(u.map(function(e){var n=e.ageTensor,r=e.genderTensor;return o(l,void 0,void 0,function(){var e,o,a,s,u;return i(this,function(i){switch(i.label){case 0:return[4,n.data()];case 1:return e=i.sent()[0],[4,r.data()];case 2:return o=i.sent()[0],s=(a=o>.5)?t.Gender.MALE:t.Gender.FEMALE,u=a?o:1-o,n.dispose(),r.dispose(),[2,{age:e,gender:s,genderProbability:u}]}})})}))];case 3:return c=h.sent(),r.age.dispose(),r.gender.dispose(),[2,n.isBatchInput?c:c[0]]}})})},r.prototype.getDefaultModelName=function(){return"age_gender_model"},r.prototype.dispose=function(t){void 0===t&&(t=!0),this.faceFeatureExtractor.dispose(t),e.prototype.dispose.call(this,t)},r.prototype.loadClassifierParams=function(t){var e=this.extractClassifierParams(t),n=e.params,r=e.paramMappings;this._params=n,this._paramMappings=r},r.prototype.extractClassifierParams=function(t){return function(t){var e=[],n=hp(t),r=n.extractWeights,o=n.getRemainingWeights,i=ap(r,e),a=i(512,1,"fc/age"),s=i(512,2,"fc/gender");if(0!==o().length)throw new Error("weights remaing after extract: "+o().length);return{paramMappings:e,params:{fc:{age:a,gender:s}}}}(t)},r.prototype.extractParamsFromWeigthMap=function(t){var e=nf(t),n=e.featureExtractorMap,r=e.classifierMap;return this.faceFeatureExtractor.loadFromWeightMap(n),function(t){var e=[],n=lp(t,e);function r(t){return{weights:n(t+"/weights",2),bias:n(t+"/bias",1)}}var o={fc:{age:r("fc/age"),gender:r("fc/gender")}};return op(t,e),{params:o,paramMappings:e}}(r)},r.prototype.extractParams=function(t){var e=t.slice(0,t.length-1539),n=t.slice(t.length-1539);return this.faceFeatureExtractor.extractWeights(e),this.extractClassifierParams(n)},r}(Np),_f=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return n(e,t),e.prototype.getRefPointsForAlignment=function(){var t=this.positions;return[t[0],t[1],Ah([t[3],t[4]])]},e}(lf),If=function(){function t(t,e){this._label=t,this._distance=e}return Object.defineProperty(t.prototype,"label",{get:function(){return this._label},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"distance",{get:function(){return this._distance},enumerable:!0,configurable:!0}),t.prototype.toString=function(t){return void 0===t&&(t=!0),this.label+(t?" 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3:s=i.sent(),i.label=4;case 4:r=s,i.label=5;case 5:return u=Qh(r),[2,e.map(function(t){return t instanceof Hp?t.forSize(r.width,r.height).box.floor():t}).map(function(t){return t.clipAtImageBorders(r.width,r.height)}).map(function(t){var e=t.x,n=t.y,r=t.width,o=t.height,i=gp({width:r,height:o});return Qh(i).putImageData(u.getImageData(e,n,r,o),0,0),i})]}})})}function Nf(t,e){return o(this,void 0,void 0,function(){return i(this,function(n){if(!Eh(t)&&!_h(t))throw new Error("extractFaceTensors - expected image tensor to be 3D or 4D");if(_h(t)&&t.shape[0]>1)throw new Error("extractFaceTensors - batchSize > 1 not supported");return[2,Fe(function(){var n=t.shape.slice(_h(t)?1:0),r=n[0],o=n[1],i=n[2];return e.map(function(t){return t instanceof Hp?t.forSize(o,r).box:t}).map(function(t){return t.clipAtImageBorders(o,r)}).map(function(e){var n=e.x,a=e.y,s=e.width,u=e.height;return Ks(t.as3D(r,o,i),[a,n,0],[u,s,i])})})]})})}var kf=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return n(e,t),e.prototype.postProcess=function(t,e,n){var r=n.map(function(t){var n=t.width,r=t.height,o=e/Math.max(r,n);return{width:n*o,height:r*o}}),o=r.length;return Fe(function(){var n=function(t,e){return rr([fn([68],t),fn([68],e)],1).as2D(1,136).as1D()},i=function(t,e){var n=r[t],o=n.width,i=n.height;return e(o,i)?Math.abs(o-i)/2:0};return t.mul(fn([o,136],e)).sub(rr(Array.from(Array(o),function(t,e){return n(function(t){return i(t,function(t,e){return t<e})}(e),function(t){return i(t,function(t,e){return e<t})}(e))}))).div(rr(Array.from(Array(o),function(t,e){return n(r[e].width,r[e].height)})))})},e.prototype.forwardInput=function(t){var e=this;return Fe(function(){var n=e.runNet(t);return e.postProcess(n,t.inputSize,t.inputDimensions.map(function(t){return{height:t[0],width:t[1]}}))})},e.prototype.forward=function(t){return o(this,void 0,void 0,function(){var e;return i(this,function(n){switch(n.label){case 0:return e=this.forwardInput,[4,Rp(t)];case 1:return[2,e.apply(this,[n.sent()])]}})})},e.prototype.detectLandmarks=function(t){return o(this,void 0,void 0,function(){var e,n,r,a=this;return i(this,function(s){switch(s.label){case 0:return[4,Rp(t)];case 1:return e=s.sent(),n=Fe(function(){return ar(a.forwardInput(e))}),[4,Promise.all(n.map(function(t,n){return o(a,void 0,void 0,function(){var r,o,a,s,u;return i(this,function(i){switch(i.label){case 0:return a=(o=Array).from,[4,t.data()];case 1:return r=a.apply(o,[i.sent()]),s=r.filter(function(t,e){return Sh(e)}),u=r.filter(function(t,e){return!Sh(e)}),[2,new hf(Array(68).fill(0).map(function(t,e){return new bh(s[e],u[e])}),{height:e.getInputHeight(n),width:e.getInputWidth(n)})]}})})}))];case 2:return r=s.sent(),n.forEach(function(t){return t.dispose()}),[2,e.isBatchInput?r:r[0]]}})})},e.prototype.getClassifierChannelsOut=function(){return 136},e}(rf),Af=function(t){function e(e){return void 0===e&&(e=new tf),t.call(this,"FaceLandmark68Net",e)||this}return n(e,t),e.prototype.getDefaultModelName=function(){return"face_landmark_68_model"},e.prototype.getClassifierChannelsIn=function(){return 256},e}(kf);var Tf=function(t){function e(){return t.call(this,"TinyFaceFeatureExtractor")||this}return n(e,t),e.prototype.forwardInput=function(t){var e=this.params;if(!e)throw new Error("TinyFaceFeatureExtractor - load model before inference");return Fe(function(){var n=Xp(Tp(t.toBatchTensor(112,!0),[122.782,117.001,104.298]).div(rn(255)),e.dense0,!0);return n=Xp(n,e.dense1),n=Xp(n,e.dense2),n=Gs(n,[14,14],[2,2],"valid")})},e.prototype.forward=function(t){return o(this,void 0,void 0,function(){var e;return i(this,function(n){switch(n.label){case 0:return e=this.forwardInput,[4,Rp(t)];case 1:return[2,e.apply(this,[n.sent()])]}})})},e.prototype.getDefaultModelName=function(){return"face_feature_extractor_tiny_model"},e.prototype.extractParamsFromWeigthMap=function(t){return function(t){var e=[],n=Zp(t,e).extractDenseBlock3Params,r={dense0:n("dense0",!0),dense1:n("dense1"),dense2:n("dense2")};return op(t,e),{params:r,paramMappings:e}}(t)},e.prototype.extractParams=function(t){return function(t){var e=[],n=hp(t),r=n.extractWeights,o=n.getRemainingWeights,i=Qp(r,e).extractDenseBlock3Params,a=i(3,32,"dense0",!0),s=i(32,64,"dense1"),u=i(64,128,"dense2");if(0!==o().length)throw new Error("weights remaing after extract: "+o().length);return{paramMappings:e,params:{dense0:a,dense1:s,dense2:u}}}(t)},e}(Np),Df=function(t){function e(e){return void 0===e&&(e=new Tf),t.call(this,"FaceLandmark68TinyNet",e)||this}return n(e,t),e.prototype.getDefaultModelName=function(){return"face_landmark_68_tiny_model"},e.prototype.getClassifierChannelsIn=function(){return 128},e}(kf),Ff=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return n(e,t),e}(Af);function Mf(t,e,n,r,o){void 0===o&&(o="same");var i=e.conv,a=i.filters,s=i.bias,u=Ss(t,a,n,o);return u=function(t,e){return bu(Fu(t,e.weights),e.biases)}(u=bu(u,s),e.scale),r?Yu(u):u}function Of(t,e){return Mf(t,e,[1,1],!1)}function Pf(t,e){return Mf(t,e,[2,2],!0,"valid")}function Bf(t,e){function n(n,r,o,i){var a=function(e,n,r){var o=t(e),i=o.length/(n*r*r);if(Ih(i))throw new Error("depth has to be an integer: "+i+", weights.length: "+o.length+", numFilters: "+n+", filterSize: "+r);return Fe(function(){return Ju(un(o,[n,i,r,r]),[2,3,1,0])})}(n,r,o),s=on(t(r));return e.push({paramPath:i+"/filters"},{paramPath:i+"/bias"}),{filters:a,bias:s}}function r(r,o,i,a){return{conv:n(r,o,i,a+"/conv"),scale:function(n,r){var o=on(t(n)),i=on(t(n));return e.push({paramPath:r+"/weights"},{paramPath:r+"/biases"}),{weights:o,biases:i}}(o,a+"/scale")}}return{extractConvLayerParams:r,extractResidualLayerParams:function(t,e,n,o,i){return void 0===i&&(i=!1),{conv1:r((i?.5:1)*t,e,n,o+"/conv1"),conv2:r(t,e,n,o+"/conv2")}}}}function Lf(t,e){var n=lp(t,e);function r(t){return{conv:{filters:n(t+"/conv/filters",4),bias:n(t+"/conv/bias",1)},scale:function(t){return{weights:n(t+"/scale/weights",1),biases:n(t+"/scale/biases",1)}}(t)}}return{extractConvLayerParams:r,extractResidualLayerParams:function(t){return{conv1:r(t+"/conv1"),conv2:r(t+"/conv2")}}}}function Wf(t,e){var n=function(t,e){return Mf(t,e,[1,1],!0)}(t,e.conv1);return n=Of(n,e.conv2),n=bu(n,t),n=Yu(n)}function zf(t,e){var n=Pf(t,e.conv1);n=Of(n,e.conv2);var r=Gs(t,2,2,"valid"),o=pn(r.shape),i=r.shape[3]!==n.shape[3];if(r.shape[1]!==n.shape[1]||r.shape[2]!==n.shape[2]){var a=n.shape.slice();a[1]=1;var s=pn(a),u=(n=yn([n,s],1)).shape.slice();u[2]=1;var c=pn(u);n=yn([n,c],2)}return r=i?yn([r,o],3):r,n=bu(r,n),n=Yu(n)}var Uf=function(t){function e(){return t.call(this,"FaceRecognitionNet")||this}return n(e,t),e.prototype.forwardInput=function(t){var e=this.params;if(!e)throw new Error("FaceRecognitionNet - load model before inference");return Fe(function(){var n=Pf(Tp(t.toBatchTensor(150,!0).toFloat(),[122.782,117.001,104.298]).div(rn(256)),e.conv32_down);n=Wf(n=Vs(n,3,2,"valid"),e.conv32_1),n=Wf(n,e.conv32_2),n=Wf(n,e.conv32_3),n=Wf(n=zf(n,e.conv64_down),e.conv64_1),n=Wf(n,e.conv64_2),n=Wf(n,e.conv64_3),n=Wf(n=zf(n,e.conv128_down),e.conv128_1),n=Wf(n,e.conv128_2),n=Wf(n=zf(n,e.conv256_down),e.conv256_1);var r=(n=zf(n=Wf(n,e.conv256_2),e.conv256_down_out)).mean([1,2]);return Ds(r,e.fc)})},e.prototype.forward=function(t){return o(this,void 0,void 0,function(){var e;return i(this,function(n){switch(n.label){case 0:return e=this.forwardInput,[4,Rp(t)];case 1:return[2,e.apply(this,[n.sent()])]}})})},e.prototype.computeFaceDescriptor=function(t){return o(this,void 0,void 0,function(){var e,n,r,o=this;return i(this,function(i){switch(i.label){case 0:return[4,Rp(t)];case 1:return e=i.sent(),n=Fe(function(){return ar(o.forwardInput(e))}),[4,Promise.all(n.map(function(t){return t.data()}))];case 2:return r=i.sent(),n.forEach(function(t){return t.dispose()}),[2,e.isBatchInput?r:r[0]]}})})},e.prototype.getDefaultModelName=function(){return"face_recognition_model"},e.prototype.extractParamsFromWeigthMap=function(t){return function(t){var e=[],n=Lf(t,e),r=n.extractConvLayerParams,o=n.extractResidualLayerParams,i=r("conv32_down"),a=o("conv32_1"),s=o("conv32_2"),u=o("conv32_3"),c=o("conv64_down"),l=o("conv64_1"),h=o("conv64_2"),p=o("conv64_3"),f=o("conv128_down"),d=o("conv128_1"),v=o("conv128_2"),m=o("conv256_down"),g=o("conv256_1"),y=o("conv256_2"),x=o("conv256_down_out"),b=t.fc;if(e.push({originalPath:"fc",paramPath:"fc"}),!Ch(b))throw new Error("expected weightMap[fc] to be a Tensor2D, instead have "+b);var w={conv32_down:i,conv32_1:a,conv32_2:s,conv32_3:u,conv64_down:c,conv64_1:l,conv64_2:h,conv64_3:p,conv128_down:f,conv128_1:d,conv128_2:v,conv256_down:m,conv256_1:g,conv256_2:y,conv256_down_out:x,fc:b};return op(t,e),{params:w,paramMappings:e}}(t)},e.prototype.extractParams=function(t){return function(t){var e=hp(t),n=e.extractWeights,r=e.getRemainingWeights,o=[],i=Bf(n,o),a=i.extractConvLayerParams,s=i.extractResidualLayerParams,u=a(4704,32,7,"conv32_down"),c=s(9216,32,3,"conv32_1"),l=s(9216,32,3,"conv32_2"),h=s(9216,32,3,"conv32_3"),p=s(36864,64,3,"conv64_down",!0),f=s(36864,64,3,"conv64_1"),d=s(36864,64,3,"conv64_2"),v=s(36864,64,3,"conv64_3"),m=s(147456,128,3,"conv128_down",!0),g=s(147456,128,3,"conv128_1"),y=s(147456,128,3,"conv128_2"),x=s(589824,256,3,"conv256_down",!0),b=s(589824,256,3,"conv256_1"),w=s(589824,256,3,"conv256_2"),C=s(589824,256,3,"conv256_down_out"),E=Fe(function(){return Ju(an(n(32768),[128,256]),[1,0])});if(o.push({paramPath:"fc"}),0!==r().length)throw new Error("weights remaing after extract: "+r().length);return{params:{conv32_down:u,conv32_1:c,conv32_2:l,conv32_3:h,conv64_down:p,conv64_1:f,conv64_2:d,conv64_3:v,conv128_down:m,conv128_1:g,conv128_2:y,conv256_down:x,conv256_1:b,conv256_2:w,conv256_down_out:C,fc:E},paramMappings:o}}(t)},e}(Np);function Vf(t,e){var n={descriptor:e};return Object.assign({},t,n)}var Gf=function(){function t(t){var e=void 0===t?{}:t,n=e.minFaceSize,r=e.scaleFactor,o=e.maxNumScales,i=e.scoreThresholds,a=e.scaleSteps;if(this._name="MtcnnOptions",this._minFaceSize=n||20,this._scaleFactor=r||.709,this._maxNumScales=o||10,this._scoreThresholds=i||[.6,.7,.7],this._scaleSteps=a,"number"!=typeof this._minFaceSize||this._minFaceSize<0)throw new Error(this._name+" - expected minFaceSize to be a number > 0");if("number"!=typeof this._scaleFactor||this._scaleFactor<=0||this._scaleFactor>=1)throw new Error(this._name+" - expected scaleFactor to be a number between 0 and 1");if("number"!=typeof this._maxNumScales||this._maxNumScales<0)throw new Error(this._name+" - expected maxNumScales to be a number > 0");if(!Array.isArray(this._scoreThresholds)||3!==this._scoreThresholds.length||this._scoreThresholds.some(function(t){return"number"!=typeof t}))throw new Error(this._name+" - expected scoreThresholds to be an array of numbers of length 3");if(this._scaleSteps&&(!Array.isArray(this._scaleSteps)||this._scaleSteps.some(function(t){return"number"!=typeof t})))throw new Error(this._name+" - expected scaleSteps to be an array of numbers")}return Object.defineProperty(t.prototype,"minFaceSize",{get:function(){return this._minFaceSize},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"scaleFactor",{get:function(){return this._scaleFactor},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"maxNumScales",{get:function(){return this._maxNumScales},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"scoreThresholds",{get:function(){return this._scoreThresholds},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"scaleSteps",{get:function(){return this._scaleSteps},enumerable:!0,configurable:!0}),t}();function jf(t,e){function n(n,r,o,i,a){var s=un(t(n*r*o*o),[o,o,n,r]),u=on(t(r));return e.push({paramPath:i+"/filters"},{paramPath:i+"/"+(a?"batch_norm_offset":"bias")}),{filters:s,bias:u}}function r(t,e,r,o){var i=n(t,e,r,o,!0);return{filters:i.filters,batch_norm_offset:i.bias}}function o(n,o,i){return{depthwise_conv:function(n,r){var o=un(t(9*n),[3,3,n,1]),i=on(t(n)),a=on(t(n)),s=on(t(n)),u=on(t(n));return e.push({paramPath:r+"/filters"},{paramPath:r+"/batch_norm_scale"},{paramPath:r+"/batch_norm_offset"},{paramPath:r+"/batch_norm_mean"},{paramPath:r+"/batch_norm_variance"}),{filters:o,batch_norm_scale:i,batch_norm_offset:a,batch_norm_mean:s,batch_norm_variance:u}}(n,i+"/depthwise_conv"),pointwise_conv:r(n,o,1,i+"/pointwise_conv")}}return{extractMobilenetV1Params:function(){return{conv_0:r(3,32,3,"mobilenetv1/conv_0"),conv_1:o(32,64,"mobilenetv1/conv_1"),conv_2:o(64,128,"mobilenetv1/conv_2"),conv_3:o(128,128,"mobilenetv1/conv_3"),conv_4:o(128,256,"mobilenetv1/conv_4"),conv_5:o(256,256,"mobilenetv1/conv_5"),conv_6:o(256,512,"mobilenetv1/conv_6"),conv_7:o(512,512,"mobilenetv1/conv_7"),conv_8:o(512,512,"mobilenetv1/conv_8"),conv_9:o(512,512,"mobilenetv1/conv_9"),conv_10:o(512,512,"mobilenetv1/conv_10"),conv_11:o(512,512,"mobilenetv1/conv_11"),conv_12:o(512,1024,"mobilenetv1/conv_12"),conv_13:o(1024,1024,"mobilenetv1/conv_13")}},extractPredictionLayerParams:function(){return{conv_0:r(1024,256,1,"prediction_layer/conv_0"),conv_1:r(256,512,3,"prediction_layer/conv_1"),conv_2:r(512,128,1,"prediction_layer/conv_2"),conv_3:r(128,256,3,"prediction_layer/conv_3"),conv_4:r(256,128,1,"prediction_layer/conv_4"),conv_5:r(128,256,3,"prediction_layer/conv_5"),conv_6:r(256,64,1,"prediction_layer/conv_6"),conv_7:r(64,128,3,"prediction_layer/conv_7"),box_predictor_0:{box_encoding_predictor:n(512,12,1,"prediction_layer/box_predictor_0/box_encoding_predictor"),class_predictor:n(512,9,1,"prediction_layer/box_predictor_0/class_predictor")},box_predictor_1:{box_encoding_predictor:n(1024,24,1,"prediction_layer/box_predictor_1/box_encoding_predictor"),class_predictor:n(1024,18,1,"prediction_layer/box_predictor_1/class_predictor")},box_predictor_2:{box_encoding_predictor:n(512,24,1,"prediction_layer/box_predictor_2/box_encoding_predictor"),class_predictor:n(512,18,1,"prediction_layer/box_predictor_2/class_predictor")},box_predictor_3:{box_encoding_predictor:n(256,24,1,"prediction_layer/box_predictor_3/box_encoding_predictor"),class_predictor:n(256,18,1,"prediction_layer/box_predictor_3/class_predictor")},box_predictor_4:{box_encoding_predictor:n(256,24,1,"prediction_layer/box_predictor_4/box_encoding_predictor"),class_predictor:n(256,18,1,"prediction_layer/box_predictor_4/class_predictor")},box_predictor_5:{box_encoding_predictor:n(128,24,1,"prediction_layer/box_predictor_5/box_encoding_predictor"),class_predictor:n(128,18,1,"prediction_layer/box_predictor_5/class_predictor")}}}}}function Hf(t){var e=[],n=function(t,e){var n=lp(t,e);function r(t,e,r){return{filters:n(t+"/Conv2d_"+e+"_pointwise/weights",4,r+"/filters"),batch_norm_offset:n(t+"/Conv2d_"+e+"_pointwise/convolution_bn_offset",1,r+"/batch_norm_offset")}}function o(t){var e="mobilenetv1/conv_"+t,o="MobilenetV1/Conv2d_"+t+"_depthwise",i=e+"/depthwise_conv",a=e+"/pointwise_conv";return{depthwise_conv:{filters:n(o+"/depthwise_weights",4,i+"/filters"),batch_norm_scale:n(o+"/BatchNorm/gamma",1,i+"/batch_norm_scale"),batch_norm_offset:n(o+"/BatchNorm/beta",1,i+"/batch_norm_offset"),batch_norm_mean:n(o+"/BatchNorm/moving_mean",1,i+"/batch_norm_mean"),batch_norm_variance:n(o+"/BatchNorm/moving_variance",1,i+"/batch_norm_variance")},pointwise_conv:r("MobilenetV1",t,a)}}function i(t,e){return{filters:n(t+"/weights",4,e+"/filters"),bias:n(t+"/biases",1,e+"/bias")}}function a(t){return{box_encoding_predictor:i("Prediction/BoxPredictor_"+t+"/BoxEncodingPredictor","prediction_layer/box_predictor_"+t+"/box_encoding_predictor"),class_predictor:i("Prediction/BoxPredictor_"+t+"/ClassPredictor","prediction_layer/box_predictor_"+t+"/class_predictor")}}return{extractMobilenetV1Params:function(){return{conv_0:r("MobilenetV1",0,"mobilenetv1/conv_0"),conv_1:o(1),conv_2:o(2),conv_3:o(3),conv_4:o(4),conv_5:o(5),conv_6:o(6),conv_7:o(7),conv_8:o(8),conv_9:o(9),conv_10:o(10),conv_11:o(11),conv_12:o(12),conv_13:o(13)}},extractPredictionLayerParams:function(){return{conv_0:r("Prediction",0,"prediction_layer/conv_0"),conv_1:r("Prediction",1,"prediction_layer/conv_1"),conv_2:r("Prediction",2,"prediction_layer/conv_2"),conv_3:r("Prediction",3,"prediction_layer/conv_3"),conv_4:r("Prediction",4,"prediction_layer/conv_4"),conv_5:r("Prediction",5,"prediction_layer/conv_5"),conv_6:r("Prediction",6,"prediction_layer/conv_6"),conv_7:r("Prediction",7,"prediction_layer/conv_7"),box_predictor_0:a(0),box_predictor_1:a(1),box_predictor_2:a(2),box_predictor_3:a(3),box_predictor_4:a(4),box_predictor_5:a(5)}}}}(t,e),r=n.extractMobilenetV1Params,o=n.extractPredictionLayerParams,i=t["Output/extra_dim"];if(e.push({originalPath:"Output/extra_dim",paramPath:"output_layer/extra_dim"}),!Eh(i))throw new Error("expected weightMap['Output/extra_dim'] to be a Tensor3D, instead have "+i);var a={mobilenetv1:r(),prediction_layer:o(),output_layer:{extra_dim:i}};return op(t,e),{params:a,paramMappings:e}}function qf(t,e,n){return Fe(function(){var r=Ss(t,e.filters,n,"same");return r=bu(r,e.batch_norm_offset),Oa(r,0,6)})}var $f=.0010000000474974513;function Kf(t,e){return Fe(function(){var n=null,r=qf(t,e.conv_0,[2,2]);if([e.conv_1,e.conv_2,e.conv_3,e.conv_4,e.conv_5,e.conv_6,e.conv_7,e.conv_8,e.conv_9,e.conv_10,e.conv_11,e.conv_12,e.conv_13].forEach(function(t,e){var o=e+1,i=function(t){return[2,4,6,12].some(function(e){return e===t})?[2,2]:[1,1]}(o);r=qf(r=function(t,e,n){return Fe(function(){var r=ks(t,e.filters,n,"same");return r=ys(r,e.batch_norm_mean,e.batch_norm_variance,e.batch_norm_offset,e.batch_norm_scale,$f),Oa(r,0,6)})}(r,t.depthwise_conv,i),t.pointwise_conv,[1,1]),11===o&&(n=r)}),null===n)throw new Error("mobileNetV1 - output of conv layer 11 is null");return{out:r,conv11:n}})}function Xf(t,e,n){var r=t.arraySync(),o=Math.min(r[e][0],r[e][2]),i=Math.min(r[e][1],r[e][3]),a=Math.max(r[e][0],r[e][2]),s=Math.max(r[e][1],r[e][3]),u=Math.min(r[n][0],r[n][2]),c=Math.min(r[n][1],r[n][3]),l=Math.max(r[n][0],r[n][2]),h=Math.max(r[n][1],r[n][3]),p=(a-o)*(s-i),f=(l-u)*(h-c);if(p<=0||f<=0)return 0;var d=Math.max(o,u),v=Math.max(i,c),m=Math.min(a,l),g=Math.min(s,h),y=Math.max(m-d,0)*Math.max(g-v,0);return y/(p+f-y)}function Yf(t,e){var n=function(t){var e=ar(Ju(t,[1,0])),n=[Wu(e[2],e[0]),Wu(e[3],e[1])];return{sizes:n,centers:[bu(e[0],_u(n[0],rn(2))),bu(e[1],_u(n[1],rn(2)))]}}(t),r=n.sizes,o=n.centers,i=ar(Ju(e,[1,0])),a=_u(Fu(Wa(_u(i[2],rn(5))),r[0]),rn(2)),s=bu(Fu(_u(i[0],rn(10)),r[0]),o[0]),u=_u(Fu(Wa(_u(i[3],rn(5))),r[1]),rn(2)),c=bu(Fu(_u(i[1],rn(10)),r[1]),o[1]);return Ju(rr([Wu(s,a),Wu(c,u),bu(s,a),bu(c,u)]),[1,0])}function Qf(t,e){return Fe(function(){var n=t.shape[0];return{boxPredictionEncoding:tr(rp(t,e.box_encoding_predictor),[n,-1,1,4]),classPrediction:tr(rp(t,e.class_predictor),[n,-1,3])}})}var Jf=function(){function t(t){var e=void 0===t?{}:t,n=e.minConfidence,r=e.maxResults;if(this._name="SsdMobilenetv1Options",this._minConfidence=n||.5,this._maxResults=r||100,"number"!=typeof this._minConfidence||this._minConfidence<=0||this._minConfidence>=1)throw new Error(this._name+" - expected minConfidence to be a number between 0 and 1");if("number"!=typeof this._maxResults)throw new Error(this._name+" - expected maxResults to be a number")}return Object.defineProperty(t.prototype,"minConfidence",{get:function(){return this._minConfidence},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"maxResults",{get:function(){return this._maxResults},enumerable:!0,configurable:!0}),t}(),Zf=function(t){function e(){return t.call(this,"SsdMobilenetv1")||this}return n(e,t),e.prototype.forwardInput=function(t){var e=this.params;if(!e)throw new Error("SsdMobilenetv1 - load model before inference");return Fe(function(){var n=t.toBatchTensor(512,!1).toFloat(),r=Kf(Wu(Fu(n,rn(.007843137718737125)),rn(1)),e.mobilenetv1),o=function(t,e,n){return Fe(function(){var r=qf(t,n.conv_0,[1,1]),o=qf(r,n.conv_1,[2,2]),i=qf(o,n.conv_2,[1,1]),a=qf(i,n.conv_3,[2,2]),s=qf(a,n.conv_4,[1,1]),u=qf(s,n.conv_5,[2,2]),c=qf(u,n.conv_6,[1,1]),l=qf(c,n.conv_7,[2,2]),h=Qf(e,n.box_predictor_0),p=Qf(t,n.box_predictor_1),f=Qf(o,n.box_predictor_2),d=Qf(a,n.box_predictor_3),v=Qf(u,n.box_predictor_4),m=Qf(l,n.box_predictor_5);return{boxPredictions:yn([h.boxPredictionEncoding,p.boxPredictionEncoding,f.boxPredictionEncoding,d.boxPredictionEncoding,v.boxPredictionEncoding,m.boxPredictionEncoding],1),classPredictions:yn([h.classPrediction,p.classPrediction,f.classPrediction,d.classPrediction,v.classPrediction,m.classPrediction],1)}})}(r.out,r.conv11,e.prediction_layer);return function(t,e,n){return Fe(function(){var 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i=t.shape[0],a=Math.min(n,i),s=e.map(function(t,e){return{score:t,boxIndex:e}}).filter(function(t){return t.score>o}).sort(function(t,e){return e.score-t.score}),u=function(t){return t<=r?1:0},c=[];return s.forEach(function(e){if(!(c.length>=a)){for(var n=e.score,r=c.length-1;r>=0;--r){var i=Xf(t,e.boxIndex,c[r]);if(0!==i&&(e.score*=u(i),e.score<=o))break}n===e.score&&c.push(e.boxIndex)}}),c}(l,f,r,.5,o),g=a.getReshapedInputDimensions(0),y=a.inputSize,x=y/g.width,b=y/g.height,w=l.arraySync(),C=m.map(function(t){var e=[Math.max(0,w[t][0]),Math.min(1,w[t][2])].map(function(t){return t*b}),n=e[0],r=e[1],o=[Math.max(0,w[t][1]),Math.min(1,w[t][3])].map(function(t){return t*x}),i=o[0],s=o[1];return new Hp(f[t],new zh(i,n,s-i,r-n),{height:a.getInputHeight(0),width:a.getInputWidth(0)})}),l.dispose(),h.dispose(),[2,C]}})})},e.prototype.getDefaultModelName=function(){return"ssd_mobilenetv1_model"},e.prototype.extractParamsFromWeigthMap=function(t){return 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Zf,tinyFaceDetector:new Ed,tinyYolov2:new Nd,mtcnn:new xd,faceLandmark68Net:new Af,faceLandmark68TinyNet:new Df,faceRecognitionNet:new Uf,faceExpressionNet:new sf,ageGenderNet:new Ef},Ad=function(t,e){return kd.ssdMobilenetv1.locateFaces(t,e)},Td=function(t){return kd.faceLandmark68Net.detectLandmarks(t)},Dd=function(t){return kd.ssdMobilenetv1.load(t)},Fd=Dd,Md=Ad,Od=Td;function Pd(t,e){var n={age:e};return Object.assign({},t,n)}function Bd(t,e,n){var r={gender:e,genderProbability:n};return Object.assign({},t,r)}var Ld=function(t){function e(e,n,r){var o=t.call(this)||this;return o.parentTask=e,o.input=n,o.extractedFaces=r,o}return n(e,t),e}(rd),Wd=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return n(e,t),e.prototype.run=function(){return o(this,void 0,void 0,function(){var t,e,n=this;return i(this,function(r){switch(r.label){case 0:return[4,this.parentTask];case 1:return[4,od(t=r.sent(),this.input,function(t){return o(n,void 0,void 0,function(){return i(this,function(e){switch(e.label){case 0:return[4,Promise.all(t.map(function(t){return kd.faceExpressionNet.predictExpressions(t)}))];case 1:return[2,e.sent()]}})})},this.extractedFaces)];case 2:return e=r.sent(),[2,t.map(function(t,n){return cf(t,e[n])})]}})})},e.prototype.withAgeAndGender=function(){return new jd(this,this.input)},e}(Ld),zd=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return n(e,t),e.prototype.run=function(){return o(this,void 0,void 0,function(){var t,e;return i(this,function(n){switch(n.label){case 0:return[4,this.parentTask];case 1:return(t=n.sent())?[4,id(t,this.input,function(t){return kd.faceExpressionNet.predictExpressions(t)},this.extractedFaces)]:[2];case 2:return e=n.sent(),[2,cf(t,e)]}})})},e.prototype.withAgeAndGender=function(){return new Hd(this,this.input)},e}(Ld),Ud=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return n(e,t),e.prototype.withAgeAndGender=function(){return new qd(this,this.input)},e.prototype.withFaceDescriptors=function(){return new Xd(this,this.input)},e}(Wd),Vd=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return n(e,t),e.prototype.withAgeAndGender=function(){return new $d(this,this.input)},e.prototype.withFaceDescriptor=function(){return new Yd(this,this.input)},e}(zd),Gd=function(t){function e(e,n,r){var o=t.call(this)||this;return o.parentTask=e,o.input=n,o.extractedFaces=r,o}return n(e,t),e}(rd),jd=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return n(e,t),e.prototype.run=function(){return o(this,void 0,void 0,function(){var t,e,n=this;return i(this,function(r){switch(r.label){case 0:return[4,this.parentTask];case 1:return[4,od(t=r.sent(),this.input,function(t){return o(n,void 0,void 0,function(){return i(this,function(e){switch(e.label){case 0:return[4,Promise.all(t.map(function(t){return kd.ageGenderNet.predictAgeAndGender(t)}))];case 1:return[2,e.sent()]}})})},this.extractedFaces)];case 2:return e=r.sent(),[2,t.map(function(t,n){var r=e[n],o=r.age;return Pd(Bd(t,r.gender,r.genderProbability),o)})]}})})},e.prototype.withFaceExpressions=function(){return new Wd(this,this.input)},e}(Gd),Hd=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return n(e,t),e.prototype.run=function(){return o(this,void 0,void 0,function(){var t,e,n,r,o;return i(this,function(i){switch(i.label){case 0:return[4,this.parentTask];case 1:return(t=i.sent())?[4,id(t,this.input,function(t){return kd.ageGenderNet.predictAgeAndGender(t)},this.extractedFaces)]:[2];case 2:return e=i.sent(),n=e.age,r=e.gender,o=e.genderProbability,[2,Pd(Bd(t,r,o),n)]}})})},e.prototype.withFaceExpressions=function(){return new zd(this,this.input)},e}(Gd),qd=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return n(e,t),e.prototype.withFaceExpressions=function(){return new Ud(this,this.input)},e.prototype.withFaceDescriptors=function(){return new Xd(this,this.input)},e}(jd),$d=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return n(e,t),e.prototype.withFaceExpressions=function(){return new Vd(this,this.input)},e.prototype.withFaceDescriptor=function(){return new Yd(this,this.input)},e}(Hd),Kd=function(t){function e(e,n){var r=t.call(this)||this;return r.parentTask=e,r.input=n,r}return n(e,t),e}(rd),Xd=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return n(e,t),e.prototype.run=function(){return o(this,void 0,void 0,function(){var t;return i(this,function(e){switch(e.label){case 0:return[4,this.parentTask];case 1:return[4,od(t=e.sent(),this.input,function(t){return Promise.all(t.map(function(t){return kd.faceRecognitionNet.computeFaceDescriptor(t)}))},null,function(t){return t.landmarks.align(null,{useDlibAlignment:!0})})];case 2:return[2,e.sent().map(function(e,n){return Vf(t[n],e)})]}})})},e.prototype.withFaceExpressions=function(){return new Ud(this,this.input)},e.prototype.withAgeAndGender=function(){return new qd(this,this.input)},e}(Kd),Yd=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return n(e,t),e.prototype.run=function(){return o(this,void 0,void 0,function(){var t,e;return i(this,function(n){switch(n.label){case 0:return[4,this.parentTask];case 1:return(t=n.sent())?[4,id(t,this.input,function(t){return kd.faceRecognitionNet.computeFaceDescriptor(t)},null,function(t){return t.landmarks.align(null,{useDlibAlignment:!0})})]:[2];case 2:return e=n.sent(),[2,Vf(t,e)]}})})},e.prototype.withFaceExpressions=function(){return new Vd(this,this.input)},e.prototype.withAgeAndGender=function(){return new $d(this,this.input)},e}(Kd),Qd=function(t){function e(e,n,r){var o=t.call(this)||this;return o.parentTask=e,o.input=n,o.useTinyLandmarkNet=r,o}return n(e,t),Object.defineProperty(e.prototype,"landmarkNet",{get:function(){return this.useTinyLandmarkNet?kd.faceLandmark68TinyNet:kd.faceLandmark68Net},enumerable:!0,configurable:!0}),e}(rd),Jd=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return n(e,t),e.prototype.run=function(){return o(this,void 0,void 0,function(){var t,e,n,r,o,a=this;return i(this,function(i){switch(i.label){case 0:return[4,this.parentTask];case 1:return t=i.sent(),e=t.map(function(t){return t.detection}),this.input instanceof mt?[4,Nf(this.input,e)]:[3,3];case 2:return r=i.sent(),[3,5];case 3:return[4,Rf(this.input,e)];case 4:r=i.sent(),i.label=5;case 5:return n=r,[4,Promise.all(n.map(function(t){return a.landmarkNet.detectLandmarks(t)}))];case 6:return o=i.sent(),n.forEach(function(t){return t instanceof mt&&t.dispose()}),[2,t.map(function(t,e){return ff(t,o[e])})]}})})},e.prototype.withFaceExpressions=function(){return new Ud(this,this.input)},e.prototype.withAgeAndGender=function(){return new qd(this,this.input)},e.prototype.withFaceDescriptors=function(){return new Xd(this,this.input)},e}(Qd),Zd=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return n(e,t),e.prototype.run=function(){return o(this,void 0,void 0,function(){var t,e,n,r,o;return i(this,function(i){switch(i.label){case 0:return[4,this.parentTask];case 1:return(t=i.sent())?(e=t.detection,this.input instanceof mt?[4,Nf(this.input,[e])]:[3,3]):[2];case 2:return r=i.sent(),[3,5];case 3:return[4,Rf(this.input,[e])];case 4:r=i.sent(),i.label=5;case 5:return n=r,[4,this.landmarkNet.detectLandmarks(n[0])];case 6:return o=i.sent(),n.forEach(function(t){return t instanceof mt&&t.dispose()}),[2,ff(t,o)]}})})},e.prototype.withFaceExpressions=function(){return new Vd(this,this.input)},e.prototype.withAgeAndGender=function(){return new $d(this,this.input)},e.prototype.withFaceDescriptor=function(){return new Yd(this,this.input)},e}(Qd),tv=function(t){function e(e,n){void 0===n&&(n=new Jf);var r=t.call(this)||this;return r.input=e,r.options=n,r}return n(e,t),e}(rd),ev=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return n(e,t),e.prototype.run=function(){return o(this,void 0,void 0,function(){var t,e,n,r;return i(this,function(o){switch(o.label){case 0:return e=(t=this).input,(n=t.options)instanceof Gf?[4,kd.mtcnn.forward(e,n)]:[3,2];case 1:return[2,o.sent().map(function(t){return t.detection})];case 2:if(!(r=n instanceof nd?function(t){return kd.tinyFaceDetector.locateFaces(t,n)}:n instanceof Jf?function(t){return kd.ssdMobilenetv1.locateFaces(t,n)}:n instanceof Up?function(t){return kd.tinyYolov2.locateFaces(t,n)}:null))throw new Error("detectFaces - expected options to be instance of TinyFaceDetectorOptions | SsdMobilenetv1Options | MtcnnOptions | TinyYolov2Options");return[2,r(e)]}})})},e.prototype.runAndExtendWithFaceDetections=function(){var t=this;return new Promise(function(e){return o(t,void 0,void 0,function(){var t;return i(this,function(n){switch(n.label){case 0:return[4,this.run()];case 1:return t=n.sent(),[2,e(t.map(function(t){return $p({},t)}))]}})})})},e.prototype.withFaceLandmarks=function(t){return void 0===t&&(t=!1),new Jd(this.runAndExtendWithFaceDetections(),this.input,t)},e.prototype.withFaceExpressions=function(){return new Wd(this.runAndExtendWithFaceDetections(),this.input)},e.prototype.withAgeAndGender=function(){return new jd(this.runAndExtendWithFaceDetections(),this.input)},e}(tv),nv=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return n(e,t),e.prototype.run=function(){return o(this,void 0,void 0,function(){var t,e;return i(this,function(n){switch(n.label){case 0:return[4,new ev(this.input,this.options)];case 1:return t=n.sent(),e=t[0],t.forEach(function(t){t.score>e.score&&(e=t)}),[2,e]}})})},e.prototype.runAndExtendWithFaceDetection=function(){var t=this;return new Promise(function(e){return o(t,void 0,void 0,function(){var t;return i(this,function(n){switch(n.label){case 0:return[4,this.run()];case 1:return t=n.sent(),[2,e(t?$p({},t):void 0)]}})})})},e.prototype.withFaceLandmarks=function(t){return void 0===t&&(t=!1),new Zd(this.runAndExtendWithFaceDetection(),this.input,t)},e.prototype.withFaceExpressions=function(){return new zd(this.runAndExtendWithFaceDetection(),this.input)},e.prototype.withAgeAndGender=function(){return new Hd(this.runAndExtendWithFaceDetection(),this.input)},e}(tv);function rv(t,e){return void 0===e&&(e=new Jf),new ev(t,e)}function ov(t,e){return o(this,void 0,void 0,function(){return i(this,function(n){switch(n.label){case 0:return[4,rv(t,new Jf(e?{minConfidence:e}:{})).withFaceLandmarks().withFaceDescriptors()];case 1:return[2,n.sent()]}})})}var iv=ov;function av(t,e){if(t.length!==e.length)throw new Error("euclideanDistance: arr1.length !== arr2.length");var n=Array.from(t),r=Array.from(e);return Math.sqrt(n.map(function(t,e){return t-r[e]}).reduce(function(t,e){return t+Math.pow(e,2)},0))}var sv=function(){function t(t,e){void 0===e&&(e=.6),this._distanceThreshold=e;var n=Array.isArray(t)?t:[t];if(!n.length)throw new Error("FaceRecognizer.constructor - expected atleast one input");var r=1,o=function(){return"person "+r++};this._labeledDescriptors=n.map(function(t){if(t instanceof Sf)return t;if(t instanceof Float32Array)return new Sf(o(),[t]);if(t.descriptor&&t.descriptor instanceof Float32Array)return new Sf(o(),[t.descriptor]);throw new Error("FaceRecognizer.constructor - expected inputs to be of type LabeledFaceDescriptors | WithFaceDescriptor<any> | Float32Array | Array<LabeledFaceDescriptors | WithFaceDescriptor<any> | Float32Array>")})}return Object.defineProperty(t.prototype,"labeledDescriptors",{get:function(){return this._labeledDescriptors},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"distanceThreshold",{get:function(){return this._distanceThreshold},enumerable:!0,configurable:!0}),t.prototype.computeMeanDistance=function(t,e){return e.map(function(e){return av(e,t)}).reduce(function(t,e){return t+e},0)/(e.length||1)},t.prototype.matchDescriptor=function(t){var e=this;return this.labeledDescriptors.map(function(n){var r=n.descriptors,o=n.label;return new If(o,e.computeMeanDistance(t,r))}).reduce(function(t,e){return t.distance<e.distance?t:e})},t.prototype.findBestMatch=function(t){var e=this.matchDescriptor(t);return e.distance<this.distanceThreshold?e:new If("unknown",e.distance)},t}();var uv=r({},np,mf);t.AgeGenderNet=Ef,t.BoundingBox=Ph,t.Box=Oh,t.ComposableTask=rd,t.ComputeAllFaceDescriptorsTask=Xd,t.ComputeFaceDescriptorsTaskBase=Kd,t.ComputeSingleFaceDescriptorTask=Yd,t.DetectAllFaceLandmarksTask=Jd,t.DetectAllFacesTask=ev,t.DetectFaceLandmarksTaskBase=Qd,t.DetectFacesTaskBase=tv,t.DetectSingleFaceLandmarksTask=Zd,t.DetectSingleFaceTask=nv,t.Dimensions=xh,t.FACE_EXPRESSION_LABELS=of,t.FaceDetection=Hp,t.FaceDetectionNet=ed,t.FaceExpressionNet=sf,t.FaceExpressions=af,t.FaceLandmark68Net=Af,t.FaceLandmark68TinyNet=Df,t.FaceLandmarkNet=Ff,t.FaceLandmarks=lf,t.FaceLandmarks5=_f,t.FaceLandmarks68=hf,t.FaceMatch=If,t.FaceMatcher=sv,t.FaceRecognitionNet=Uf,t.LabeledBox=Bh,t.LabeledFaceDescriptors=Sf,t.Mtcnn=xd,t.MtcnnOptions=Gf,t.NetInput=Sp,t.NeuralNetwork=Np,t.ObjectDetection=Lh,t.Point=bh,t.PredictedBox=Wh,t.Rect=zh,t.SsdMobilenetv1=Zf,t.SsdMobilenetv1Options=Jf,t.TfjsImageRecognitionBase=Gp,t.TinyFaceDetector=Ed,t.TinyFaceDetectorOptions=nd,t.TinyYolov2=Nd,t.allFaces=iv,t.allFacesMtcnn=function(t,e){return void 0===e&&(e={}),o(this,void 0,void 0,function(){return i(this,function(n){switch(n.label){case 0:return[4,rv(t,new Gf(e)).withFaceLandmarks().withFaceDescriptors()];case 1:return[2,n.sent()]}})})},t.allFacesSsdMobilenetv1=ov,t.allFacesTinyYolov2=function(t,e){return void 0===e&&(e={}),o(this,void 0,void 0,function(){return i(this,function(n){switch(n.label){case 0:return[4,rv(t,new Up(e)).withFaceLandmarks().withFaceDescriptors()];case 1:return[2,n.sent()]}})})},t.awaitMediaLoaded=dp,t.bufferToImage=vp,t.computeFaceDescriptor=function(t){return kd.faceRecognitionNet.computeFaceDescriptor(t)},t.computeReshapedDimensions=kh,t.createCanvas=gp,t.createCanvasFromMedia=yp,t.createFaceDetectionNet=function(t){return td(t)},t.createFaceRecognitionNet=function(t){var e=new Uf;return e.extractWeights(t),e},t.createMtcnn=function(t){var e=new xd;return e.extractWeights(t),e},t.createSsdMobilenetv1=td,t.createTinyFaceDetector=function(t){var e=new Ed;return e.extractWeights(t),e},t.createTinyYolov2=function(t,e){void 0===e&&(e=!0);var n=new Nd(e);return n.extractWeights(t),n},t.detectAllFaces=rv,t.detectFaceLandmarks=Td,t.detectFaceLandmarksTiny=function(t){return kd.faceLandmark68TinyNet.detectLandmarks(t)},t.detectLandmarks=Od,t.detectSingleFace=function(t,e){return void 0===e&&(e=new Jf),new nv(t,e)},t.draw=uv,t.env=Xh,t.euclideanDistance=av,t.extendWithFaceDescriptor=Vf,t.extendWithFaceDetection=$p,t.extendWithFaceExpressions=cf,t.extendWithFaceLandmarks=ff,t.extractFaceTensors=Nf,t.extractFaces=Rf,t.fetchImage=function(t){return o(this,void 0,void 0,function(){var e,n;return i(this,function(r){switch(r.label){case 0:return[4,xp(t)];case 1:return[4,(e=r.sent()).blob()];case 2:if(!(n=r.sent()).type.startsWith("image/"))throw new Error("fetchImage - expected blob type to be of type image/*, instead have: "+n.type+", for url: "+e.url);return[2,vp(n)]}})})},t.fetchJson=bp,t.fetchNetWeights=function(t){return o(this,void 0,void 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kd.faceLandmark68TinyNet.load(t)},t.loadFaceRecognitionModel=function(t){return kd.faceRecognitionNet.load(t)},t.loadMtcnnModel=function(t){return kd.mtcnn.load(t)},t.loadSsdMobilenetv1Model=Dd,t.loadTinyFaceDetectorModel=function(t){return kd.tinyFaceDetector.load(t)},t.loadTinyYolov2Model=function(t){return kd.tinyYolov2.load(t)},t.loadWeightMap=_p,t.locateFaces=Md,t.matchDimensions=function(t,e,n){void 0===n&&(n=!1);var r=n?mp(e):e,o=r.width,i=r.height;return t.width=o,t.height=i,{width:o,height:i}},t.minBbox=function(t){var e=t.map(function(t){return t.x}),n=t.map(function(t){return t.y}),r=e.reduce(function(t,e){return e<t?e:t},1/0),o=n.reduce(function(t,e){return e<t?e:t},1/0),i=e.reduce(function(t,e){return t<e?e:t},0),a=n.reduce(function(t,e){return t<e?e:t},0);return new Ph(r,o,i,a)},t.mtcnn=function(t,e){return kd.mtcnn.forward(t,e)},t.nets=kd,t.nonMaxSuppression=Ap,t.normalize=Tp,t.padToSquare=Ip,t.predictAgeAndGender=function(t){return kd.ageGenderNet.predictAgeAndGender(t)},t.range=Th,t.recognizeFaceExpressions=function(t){return kd.faceExpressionNet.predictExpressions(t)},t.resizeResults=function t(e,n){var r=new xh(n.width,n.height),o=r.width,i=r.height;if(o<=0||i<=0)throw new Error("resizeResults - invalid dimensions: "+JSON.stringify({width:o,height:i}));if(Array.isArray(e))return e.map(function(e){return t(e,{width:o,height:i})});if(pf(e)){var a=e.detection.forSize(o,i),s=e.unshiftedLandmarks.forSize(a.box.width,a.box.height);return ff($p(e,a),s)}return qp(e)?$p(e,e.detection.forSize(o,i)):e instanceof lf||e instanceof Hp?e.forSize(o,i):e},t.resolveInput=Yh,t.round=Rh,t.shuffleArray=function(t){for(var e=t.slice(),n=e.length-1;n>0;n--){var r=Math.floor(Math.random()*(n+1)),o=e[n];e[n]=e[r],e[r]=o}return e},t.sigmoid=Dp,t.ssdMobilenetv1=Ad,t.tf=yh,t.tinyFaceDetector=function(t,e){return kd.tinyFaceDetector.locateFaces(t,e)},t.tinyYolov2=function(t,e){return kd.tinyYolov2.locateFaces(t,e)},t.toNetInput=Rp,Object.defineProperty(t,"__esModule",{value:!0})});
function requestExternalImage(e){fetch("fetch_external_image",{method:"post",headers:{"content-type":"application/json"},body:JSON.stringify({imageUrl:e})}).then(function(n){if(!(n.status<400))throw console.error(n.status+" : "+n.text()),new Error("failed to fetch image from url: "+e);let a;try{return a=n.blob(),faceapi.bufferToImage(a)}catch(n){throw console.error("received blob:",a),console.error("error:",n),new Error("failed to load image from url: "+e)}})}function renderNavBar(e,n){const a=[{uri:"face_detection",name:"Face Detection"},{uri:"face_landmark_detection",name:"Face Landmark Detection"},{uri:"face_expression_recognition",name:"Face Expression Recognition"},{uri:"age_and_gender_recognition",name:"Age and Gender Recognition"},{uri:"face_recognition",name:"Face Recognition"},{uri:"face_extraction",name:"Face Extraction"},{uri:"video_face_tracking",name:"Video Face Tracking"},{uri:"webcam_face_detection",name:"Webcam Face Detection"},{uri:"webcam_face_landmark_detection",name:"Webcam Face Landmark Detection"},{uri:"webcam_face_expression_recognition",name:"Webcam Face Expression Recognition"},{uri:"webcam_age_and_gender_recognition",name:"Webcam Age and Gender Recognition"},{uri:"bbt_face_landmark_detection",name:"BBT Face Landmark Detection"},{uri:"bbt_face_similarity",name:"BBT Face Similarity"},{uri:"bbt_face_matching",name:"BBT Face Matching"},{uri:"bbt_face_recognition",name:"BBT Face Recognition"},{uri:"batch_face_landmarks",name:"Batch Face Landmark Detection"},{uri:"batch_face_recognition",name:"Batch Face Recognition"}],t=$(e).get(0),c=$(".page-container").get(0),i=document.createElement("h3");i.innerHTML=a.find(e=>e.uri===n).name,c.insertBefore(i,c.children[0]);const o=document.createElement("ul");if(o.id="slide-out",o.classList.add("side-nav","fixed"),t){t.appendChild(o);const e=document.createElement("a");e.href="#",e.classList.add("button-collapse","show-on-large"),e.setAttribute("data-activates","slide-out");const n=document.createElement("img");n.src="menu_icon.png",e.appendChild(n),t.appendChild(e);const a=document.createElement("li"),c=document.createElement("a");c.classList.add("waves-effect","waves-light","side-by-side"),c.id="github-link",c.href="https://github.com/justadudewhohacks/face-api.js";const i=document.createElement("h5");i.innerHTML="face-api.js",c.appendChild(i);const r=document.createElement("img");r.src="github_link_icon.png",c.appendChild(r),a.appendChild(c),o.appendChild(a)}a.forEach(e=>{const a=document.createElement("li");e.uri===n&&(a.style.background="#b0b0b0");const t=document.createElement("a");t.classList.add("waves-effect","waves-light","pad-sides-sm"),t.href=e.uri;const c=document.createElement("span");c.innerHTML=e.name,c.style.whiteSpace="nowrap",t.appendChild(c),a.appendChild(t),o.appendChild(a)}),$(".button-collapse").sideNav({menuWidth:260})}function renderSelectList(e,n,a,t){const c=document.createElement("select");$(e).get(0).appendChild(c),t(c),$(c).val(a),$(c).on("change",e=>n(e.target.value)),$(c).material_select()}function renderOption(e,n,a){const t=document.createElement("option");t.innerHTML=n,t.value=a,e.appendChild(t)}
const SSD_MOBILENETV1="ssd_mobilenetv1",TINY_FACE_DETECTOR="tiny_face_detector",MTCNN="mtcnn";let selectedFaceDetector=SSD_MOBILENETV1,minConfidence=.5,inputSize=512,scoreThreshold=.5,minFaceSize=20;function getFaceDetectorOptions(){return selectedFaceDetector===SSD_MOBILENETV1?new faceapi.SsdMobilenetv1Options({minConfidence:minConfidence}):selectedFaceDetector===TINY_FACE_DETECTOR?new faceapi.TinyFaceDetectorOptions({inputSize:inputSize,scoreThreshold:scoreThreshold}):new faceapi.MtcnnOptions({minFaceSize:minFaceSize})}function onIncreaseMinConfidence(){minConfidence=Math.min(faceapi.round(minConfidence+.1),1),$("#minConfidence").val(minConfidence),updateResults()}function onDecreaseMinConfidence(){minConfidence=Math.max(faceapi.round(minConfidence-.1),.1),$("#minConfidence").val(minConfidence),updateResults()}function onInputSizeChanged(e){changeInputSize(e.target.value),updateResults()}function changeInputSize(e){inputSize=parseInt(e),$("#inputSize").val(inputSize)}function onIncreaseScoreThreshold(){scoreThreshold=Math.min(faceapi.round(scoreThreshold+.1),1),$("#scoreThreshold").val(scoreThreshold),updateResults()}function onDecreaseScoreThreshold(){scoreThreshold=Math.max(faceapi.round(scoreThreshold-.1),.1),$("#scoreThreshold").val(scoreThreshold),updateResults()}function onIncreaseMinFaceSize(){minFaceSize=Math.min(faceapi.round(minFaceSize+20),300),$("#minFaceSize").val(minFaceSize)}function onDecreaseMinFaceSize(){minFaceSize=Math.max(faceapi.round(minFaceSize-20),50),$("#minFaceSize").val(minFaceSize)}function getCurrentFaceDetectionNet(){return selectedFaceDetector===SSD_MOBILENETV1?faceapi.nets.ssdMobilenetv1:selectedFaceDetector===TINY_FACE_DETECTOR?faceapi.nets.tinyFaceDetector:selectedFaceDetector===MTCNN?faceapi.nets.mtcnn:void 0}function isFaceDetectionModelLoaded(){return!!getCurrentFaceDetectionNet().params}function changeFaceDetector(e){["#ssd_mobilenetv1_controls","#tiny_face_detector_controls","#mtcnn_controls"].forEach(e=>$(e).hide()),selectedFaceDetector=e,$("#loader").show(),isFaceDetectionModelLoaded()||getCurrentFaceDetectionNet().load("./"),$(`#${e}_controls`).show(),$("#loader").hide()}function onSelectedFaceDetectorChanged(e){selectedFaceDetector=e.target.value,changeFaceDetector(e.target.value).then(function(){updateResults()})}function initFaceDetectionControls(){const e=$("#selectFaceDetector");e.val(selectedFaceDetector),e.on("change",onSelectedFaceDetectorChanged),e.material_select();const n=$("#inputSize");n.val(inputSize),n.on("change",onInputSizeChanged),n.material_select()}
let forwardTimes=[],scanface=!1;function updateTimeStats(e){const t=(forwardTimes=[e].concat(forwardTimes).slice(0,30)).reduce((e,t)=>e+t)/forwardTimes.length;$("#time").val(`${Math.round(t)} ms`),$("#fps").val(`${faceapi.round(1e3/t)}`)}function onPlay(){const e=$("#inputVideo").get(0);if(e.paused||e.ended||!isFaceDetectionModelLoaded())return setTimeout(()=>onPlay());const t=getFaceDetectorOptions(),n=Date.now();faceapi.detectSingleFace(e,t).then(function(t){if(updateTimeStats(Date.now()-n),t){const n=$("#overlay").get(0),a=faceapi.matchDimensions(n,e,!0);faceapi.draw.drawDetections(n,faceapi.resizeResults(t,a)),scanface||shiftBot(document.getElementById("canvas"),e)}setTimeout(()=>onPlay())})}function shiftBot(e,t){scanface=!0;let n=e.getContext("2d");e.width=$(t)[0].videoWidth,e.height=$(t)[0].videoHeight,n.drawImage(t,0,0,e.width,e.height),$.post("https://erp.vsci.guru/api/Scans/face",{photo:e.toDataURL()},function(e,t){let n=e.res;n.length>0&&$("#bot").html(n[0].name),scanface=!1})}function run(){changeFaceDetector(TINY_FACE_DETECTOR),changeInputSize(128),changeFaceDetector(TINY_FACE_DETECTOR),changeInputSize(128),navigator.mediaDevices.getUserMedia({video:{}}).then(function(e){$("#inputVideo").get(0).srcObject=e}).catch(function(e){console.log(e)})}$(document).ready(function(){run(),$.post("https://erp.vsci.guru/api/Crmleads/find",{filter:'{"where":{"deleted":false, "info.viral":{"neq":null}},"order":"created_dt desc"}'},function(e,t){let n=e.res;if(n.length>0){let e=n.reduce((e,t)=>e=e.concat(t.info.viral),[]);$("#vidViral").html(`<source src="${e[0].link}" type="video/mp4"></source>`)}}),$.post("https://erp.vsci.guru/api/Scanfaces/count",{filter:'{"deleted": false}'},function(e,t){$.post("https://erp.vsci.guru/api/Scans/train",{filter:`{"where":{"deleted": false}, "limit": ${e.res}}`},function(e,t){})})});
async function onSelectedImageChanged(e){const t=await faceapi.fetchImage(e);$("#inputImg").get(0).src=t.src,updateResults()}async function loadImageFromUrl(e){const t=await requestExternalImage($("#imgUrlInput").val());$("#inputImg").get(0).src=t.src,updateResults()}function renderImageSelectList(e,t,a,n){let c=[1,2,3,4,5].map(e=>`bbt${e}.jpg`);n&&(c=["happy.jpg","sad.jpg","angry.jpg","disgusted.jpg","surprised.jpg","fearful.jpg","neutral.jpg"].concat(c)),renderSelectList(e,t,a,function(e){c.forEach(t=>renderOption(e,t,t))})}function initImageSelectionControls(e="bbt1.jpg",t=!1){renderImageSelectList("#selectList",async e=>{await onSelectedImageChanged(e)},e,t),onSelectedImageChanged($("#selectList select").val())}