face-api.min.js

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t(e,n,r){if(null!=e)if(e instanceof vt)n.push(e);else if(o=e,Array.isArray(o)||"object"==typeof o){var o,i=e;for(var a in i){var s=i[a];r.has(s)||(r.add(s),t(s,n,r))}}}(t,e,new Set),e}var Pt,Bt=Object.freeze({makeTypesMatch:Nt,assertTypesMatch:Mt,isTensorInList:function(t,e){for(var n=0;n<e.length;n++)if(e[n].id===t.id)return!0;return!1},getTensorsInContainer:Ot}),Lt=(Ut.prototype.dispose=function(){for(var t in this.registeredVariables)this.registeredVariables[t].dispose()},Ut),Wt=(zt.prototype.ready=function(){return y(this,void 0,void 0,function(){var e,n,r;return R(this,function(t){switch(t.label){case 0:if(null!=this.pendingBackendInit)return[2,this.pendingBackendInit.then(function(){})];if(null!=this.backendInstance)return[2];e=this.getSortedBackends(),n=0,t.label=1;case 1:return n<e.length?(r=e[n],[4,this.initializeBackend(r).success]):[3,5];case 2:return t.sent()?[4,this.setBackend(r)]:[3,4];case 3:return t.sent(),[2];case 4:return n++,[3,1];case 5:throw new Error("Could not initialize any backends, all backend initializations failed.")}})})},Object.defineProperty(zt.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}),zt.prototype.backendNames=function(){return Object.keys(this.registryFactory)},zt.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]},zt.prototype.findBackendFactory=function(t){return t in this.registryFactory?this.registryFactory[t].factory:null},zt.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)},zt.prototype.setBackend=function(o){return y(this,void 0,void 0,function(){var e,n,r;return R(this,function(t){switch(t.label){case 0:if(null==this.registryFactory[o])throw new Error("Backend name '"+o+"' not found in registry");return this.backendName=o,null!=this.registry[o]?[3,4]:(this.backendInstance=null,e=this.initializeBackend(o),n=e.success,e.asyncInit?[4,n]:[3,2]);case 1:return r=t.sent(),[3,3];case 2:r=n,t.label=3;case 3:if(!r)return[2,!1];t.label=4;case 4:return this.backendInstance=this.registry[o],this.setupRegisteredKernels(),this.profiler=new nt(this.backendInstance),[2,!0]}})})},zt.prototype.setupRegisteredKernels=function(){var e=this;a(this.backendName).forEach(function(t){null!=t.setupFunc&&t.setupFunc(e.backendInstance)})},zt.prototype.disposeRegisteredKernels=function(e){var n=this;a(e).forEach(function(t){null!=t.disposeFunc&&t.disposeFunc(n.registry[e])})},zt.prototype.initializeBackend=function(e){var n=this,t=this.registryFactory[e];if(null==t)throw new Error("Cannot initialize backend "+e+", no registration found.");try{var r=t.factory();if(Promise.resolve(r)!==r)return this.registry[e]=r,{success:!0,asyncInit:!1};var o=++this.pendingBackendInitId,i=r.then(function(t){return!(o<n.pendingBackendInitId||(n.registry[e]=t,n.pendingBackendInit=null))}).catch(function(t){return!(o<n.pendingBackendInitId||(n.pendingBackendInit=null,console.warn("Initialization of backend "+e+" failed"),console.warn(t.stack||t.message),1))});return{success:this.pendingBackendInit=i,asyncInit:!0}}catch(n){return console.warn("Initialization of backend "+e+" failed"),console.warn(n.stack||n.message),{success:!1,asyncInit:!1}}},zt.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.disposeRegisteredKernels(t),this.registry[t].dispose(),delete this.registry[t]),delete this.registryFactory[t],this.backendName===t&&(this.pendingBackendInit=null,this.backendName=null,this.backendInstance=null)},zt.prototype.getSortedBackends=function(){var n=this;if(0===Object.keys(this.registryFactory).length)throw new Error("No backend found in registry.");return Object.keys(this.registryFactory).sort(function(t,e){return n.registryFactory[e].priority-n.registryFactory[t].priority})},zt.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.")},zt.prototype.moveData=function(t,e){var n=this.state.tensorInfo.get(e),r=n.backend,o=this.readSync(e);r.disposeData(e),(n.backend=t).move(e,o,n.shape,n.dtype),this.shouldCheckForMemLeaks()&&this.state.numDataMovesStack[this.state.numDataMovesStack.length-1]++},zt.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})},zt.prototype.scopedRun=function(t,e,n){t();try{var r=n();return e(),r}catch(t){throw e(),t}},zt.prototype.nextTensorId=function(){return zt.nextTensorId++},zt.prototype.nextVariableId=function(){return zt.nextVariableId++},zt.prototype.clone=function(t){var e=this.makeTensorFromDataId(t.dataId,t.shape,t.dtype),n={x:t};return this.addTapeNode(this.state.activeScope.name,n,[e],function(t){return{x:function(){return t.toFloat()}}},[]),e},zt.prototype.runKernel=function(t,e,n,r,o){return this.runKernelFunc(null,e,null,t,n,r,o)},zt.prototype.shouldCheckForMemLeaks=function(){return this.ENV.getBool("IS_TEST")},zt.prototype.checkKernelForMemLeak=function(t,e,n){var r=this.backend.numDataIds(),o=0;n.forEach(function(t){o+="complex64"===t.dtype?3:1});var i=this.state.numDataMovesStack[this.state.numDataMovesStack.length-1],a=r-e-o-i;if(0<a)throw new Error("Backend '"+this.backendName+"' has an internal memory leak ("+a+" data ids) after running '"+t+"'")},zt.prototype.runKernelFunc=function(n,o,t,e,i,a,s){var r,u=this;function c(t){f&&(h=t.map(function(t){return u.keep(u.clone(t))}))}void 0===a&&(a=[]),void 0===s&&(s=[]);var l,h=[],f=this.isTapeOn(),p=null!=this.state.activeScope?this.state.activeScope.name:"",d=this.state.numBytes,v=this.state.numTensors;this.shouldCheckForMemLeaks()&&this.state.numDataMovesStack.push(0);var m,g=x(e,this.backendName);return l=null!=g?function(){var t=u.backend.numDataIds();m=g.kernelFunc({inputs:o,attrs:i,backend:u.backend});var e=Array.isArray(m)?m:[m];u.shouldCheckForMemLeaks()&&u.checkKernelForMemLeak(p,t,e);var n=e.map(function(t){var e=t.dataId,n=t.shape,r=t.dtype;return u.makeTensorFromDataId(e,n,r)}),r=n.filter(function(t,e){return s[e]});return c(a.slice().concat(r)),n}:function(){var t=u.backend.numDataIds();m=u.tidy(function(){return n(u.backend,c)});var e=Array.isArray(m)?m:[m];return u.shouldCheckForMemLeaks()&&u.checkKernelForMemLeak(p,t,e),e},this.scopedRun(function(){return u.state.kernelDepth++},function(){return u.state.kernelDepth--},function(){r=u.ENV.getBool("DEBUG")?u.profiler.profileKernel(p,o,function(){return l()}):l()}),f&&this.addTapeNode(p,o,r,t,h),this.state.profiling&&this.state.activeProfile.kernels.push({name:p,bytesAdded:this.state.numBytes-d,totalBytesSnapshot:this.state.numBytes,tensorsAdded:this.state.numTensors-v,totalTensorsSnapshot:this.state.numTensors,inputShapes:Object.keys(o).map(function(t){return o[t].shape}),outputShapes:r.map(function(t){return t.shape})}),Array.isArray(m)?r:r[0]},zt.prototype.makeTensor=function(t,e,n,r){if(null==t)throw new Error("Values passed to engine.makeTensor() are null");n=n||"float32",r=r||this.backend;var o=t;"string"===n&&z(t[0])&&(o=t.map(function(t){return Z(t)}));var i=r.write(o,e,n),a=new vt(e,n,i,this.nextTensorId());if(this.incRef(a,r),"string"===n){var s=this.state.tensorInfo.get(i),u=W(o);this.state.numBytes+=u-s.bytes,s.bytes=u}return a},zt.prototype.makeTensorFromDataId=function(t,e,n,r){var o=new vt(e,n=n||"float32",t,this.nextTensorId());return this.incRef(o,r),o},zt.prototype.makeVariable=function(t,e,n,r){void 0===e&&(e=!0),n=n||this.nextVariableId().toString(),null!=r&&r!==t.dtype&&(t=t.asType(r));var o=new St(t,e,n,this.nextTensorId());if(null!=this.state.registeredVariables[o.name])throw new Error("Variable with name "+o.name+" was already registered");return this.state.registeredVariables[o.name]=o,this.incRef(o,this.backend),o},zt.prototype.incRef=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*O(t.dtype)),this.state.tensorInfo.set(t.dataId,{backend:e||this.backend,dtype:t.dtype,shape:t.shape,bytes:r,refCount:0}),this.state.numBytes+=r}this.state.tensorInfo.get(t.dataId).refCount++,t instanceof St||this.track(t)},zt.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--}},zt.prototype.disposeVariables=function(){for(var t in this.state.registeredVariables){var e=this.state.registeredVariables[t];this.disposeVariable(e)}},zt.prototype.disposeVariable=function(t){this.disposeTensor(t),null!=this.state.registeredVariables[t.name]&&delete this.state.registeredVariables[t.name]},zt.prototype.memory=function(){var t=this.backend.memory();return t.numTensors=this.state.numTensors,t.numDataBuffers=this.state.numDataBuffers,t.numBytes=this.state.numBytes,0<this.state.numStringTensors&&(t.unreliable=!0,null==t.reasons&&(t.reasons=[]),t.reasons.push("Memory usage by string tensors is approximate (2 bytes per character)")),t},zt.prototype.profile=function(r){return y(this,void 0,void 0,function(){var e,n;return R(this,function(t){return this.state.profiling=!0,e=this.state.numBytes,n=this.state.numTensors,this.state.activeProfile.kernels=[],this.state.activeProfile.result=r(),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]})})},zt.prototype.isTapeOn=function(){return 0<this.state.gradientDepth&&0===this.state.kernelDepth},zt.prototype.addTapeNode=function(t,e,o,n,r){var i=this,a={id:this.state.nextTapeNodeId++,name:t,inputs:e,outputs:o,saved:r};null!=n&&(a.gradient=function(t){return t=t.map(function(t,e){if(null!=t)return t;var n=o[e],r=Y(n.size,n.dtype);return i.makeTensor(r,n.shape,n.dtype)}),n(1<t.length?t:t[0],r)}),this.state.activeTape.push(a)},zt.prototype.keep=function(t){return t.kept=!0,t},zt.prototype.startTape=function(){0===this.state.gradientDepth&&(this.state.activeTape=[]),this.state.gradientDepth++},zt.prototype.endTape=function(){this.state.gradientDepth--},zt.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},zt.prototype.endScope=function(t){for(var e=this,n=Ot(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)})},zt.prototype.gradients=function(t,o,i,e){var u=this;if(void 0===e&&(e=!1),P(0<o.length,function(){return"gradients() received an empty list of xs."}),null!=i&&"float32"!==i.dtype)throw new Error("dy must have 'float32' dtype, but has '"+i.dtype+"'");var a=this.scopedRun(function(){return u.startTape()},function(){return u.endTape()},function(){return u.tidy("forward",t)});P(a instanceof vt,function(){return"The result y returned by f() must be a tensor."});var s=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 f={};for(i=t.length-1;0<=i;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,f[d.id]=!0;break}var p=[];for(i=0;i<t.length;i++){var d;if(o[(d=t[i]).id]&&f[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,p.push(g)}}return p}(this.state.activeTape,o,a);if(!e&&0===s.length&&0<o.length)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,e,n={};n[a.id]=null==i?(e=$(L(t=a.shape),"float32"),Vt.makeTensor(e,t,"float32")):i,function(a,s){for(var t=function(t){var o=s[t],n=[];if(o.outputs.forEach(function(t){var e=a[t.id];null!=e?n.push(e):n.push(null)}),null==o.gradient)throw new Error("Cannot compute gradient: gradient function not found for "+o.name+".");function e(t){if(!(t in i))throw new Error("Cannot backprop through input "+t+". Available gradients found: "+Object.keys(i)+".");var e=function(t){return u.tidy(t)}(function(){return i[t]()});if("float32"!==e.dtype)throw new Error("Error in gradient for op "+o.name+". The gradient of input "+t+" must have 'float32' dtype, but has '"+e.dtype+"'");var n=o.inputs[t];if(!D(e.shape,n.shape))throw new Error("Error in gradient for op "+o.name+". The gradient of input '"+t+"' has shape '"+e.shape+"', which does not match the shape of the input '"+n.shape+"'");if(null==a[n.id])a[n.id]=e;else{var r=a[n.id];a[n.id]=r.add(e),r.dispose()}}var i=o.gradient(n);for(var r in o.inputs)e(r)},e=s.length-1;0<=e;e--)t(e)}(n,s);var r=o.map(function(t){return n[t.id]});return 0===u.state.gradientDepth&&(u.state.activeTape.forEach(function(t){for(var e=0,n=t.saved;e<n.length;e++)n[e].dispose()}),u.state.activeTape=null),{value:a,grads:r}})},zt.prototype.customGrad=function(r){var e=this;return P(H(r),function(){return"The f passed in customGrad(f) must be a function."}),function(){for(var i,a=[],t=0;t<arguments.length;t++)a[t]=arguments[t];P(a.every(function(t){return t instanceof vt}),function(){return"The args passed in customGrad(f)(x1, x2,...) must all be tensors"});var n={};return a.forEach(function(t,e){n[e]=t}),e.runKernelFunc(function(t,e){return P((i=r.apply(void 0,a.concat([e]))).value instanceof vt,function(){return"The function f passed in customGrad(f) must return an object where `obj.value` is a tensor"}),P(H(i.gradFunc),function(){return"The function f passed in customGrad(f) must return an object where `obj.gradFunc` is a function."}),i.value},n,function(t,e){var n=i.gradFunc(t,e),r=Array.isArray(n)?n:[n];P(r.length===a.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(...)."}),P(r.every(function(t){return t instanceof vt}),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 o={};return r.forEach(function(t,e){o[e]=function(){return t}}),o})}},zt.prototype.readSync=function(t){return this.state.tensorInfo.get(t).backend.readSync(t)},zt.prototype.read=function(t){return this.state.tensorInfo.get(t).backend.read(t)},zt.prototype.time=function(r){return y(this,void 0,void 0,function(){var e,n;return R(this,function(t){switch(t.label){case 0:return e=J(),[4,this.backend.time(r)];case 1:return(n=t.sent()).wallMs=J()-e,[2,n]}})})},zt.prototype.track=function(t){return null!=this.state.activeScope&&(t.scopeId=this.state.activeScope.id,this.state.activeScope.track.push(t)),t},Object.defineProperty(zt.prototype,"registeredVariables",{get:function(){return this.state.registeredVariables},enumerable:!0,configurable:!0}),zt.prototype.reset=function(){for(var t in this.pendingBackendInitId++,this.state.dispose(),this.ENV.reset(),this.state=new Lt,this.registry)this.disposeRegisteredKernels(t),this.registry[t].dispose(),delete this.registry[t];this.backendName=null,this.backendInstance=null,this.pendingBackendInit=null},zt.nextTensorId=0,zt.nextVariableId=0,zt);function zt(t){this.ENV=t,this.registry={},this.registryFactory={},this.pendingBackendInitId=0,this.state=new Lt}function Ut(){this.registeredVariables={},this.nextTapeNodeId=0,this.numBytes=0,this.numTensors=0,this.numStringTensors=0,this.numDataBuffers=0,this.gradientDepth=0,this.kernelDepth=0,this.scopeStack=[],this.numDataMovesStack=[],this.nextScopeId=0,this.tensorInfo=new WeakMap,this.profiling=!1,this.activeProfile={newBytes:0,newTensors:0,peakBytes:0,kernels:[],result:null}}var Vt=function(){var t,e=function(){if(null==Pt){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}Pt=t}return Pt}();if(null==e._tfengine){var n=new o(e);e._tfengine=new Wt(n)}return t=e._tfengine.ENV,i=t,ht=function(){return e._tfengine},e._tfengine}();function Gt(){return"undefined"!=typeof window&&null!=window.document||"undefined"!=typeof WorkerGlobalScope}var Ht=_();Ht.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.")}),Ht.registerFlag("IS_BROWSER",function(){return Gt()}),Ht.registerFlag("IS_NODE",function(){return"undefined"!=typeof process&&void 0!==process.versions&&void 0!==process.versions.node}),Ht.registerFlag("IS_CHROME",function(){return"undefined"!=typeof navigator&&null!=navigator&&null!=navigator.userAgent&&/Chrome/.test(navigator.userAgent)&&/Google Inc/.test(navigator.vendor)}),Ht.registerFlag("PROD",function(){return!1}),Ht.registerFlag("TENSORLIKE_CHECK_SHAPE_CONSISTENCY",function(){return Ht.getBool("DEBUG")}),Ht.registerFlag("DEPRECATION_WARNINGS_ENABLED",function(){return!0}),Ht.registerFlag("IS_TEST",function(){return!1});var qt,jt,Kt,Xt,$t,Yt,Jt={},Qt={alpha:!1,antialias:!1,premultipliedAlpha:!1,preserveDrawingBuffer:!1,depth:!1,stencil:!1,failIfMajorPerformanceCaveat:!0};function Zt(t,e){Jt[t]=e}function te(t){t in Jt||(Jt[t]=function(e){if(1!==e&&2!==e)throw new Error("Cannot get WebGL rendering context, WebGL is disabled.");var 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r=rn(t,"x","depthToSpace"),o="NHWC"===n?r.shape[1]:r.shape[2],i="NHWC"===n?r.shape[2]:r.shape[3],a="NHWC"===n?r.shape[3]:r.shape[1];return P(0<=o*e,function(){return"Negative dimension size caused by overflow when multiplying\n      "+o+" and "+e+"  for depthToSpace with input shape\n      "+r.shape}),P(0<=i*e,function(){return"Negative dimension size caused by overflow when multiplying\n      "+i+" and "+e+" for depthToSpace with input shape\n          "+r.shape}),P(a%(e*e)==0,function(){return"Dimension size must be evenly divisible by "+e*e+" but is "+a+" for depthToSpace with input shape "+r.shape}),Vt.runKernelFunc(function(t){return t.depthToSpace(r,e,n)},{$x:r})}}),pr=mn({expandDims_:function(t,e){void 0===e&&(e=0);var n=rn(t,"x","expandDims",null);P(e<=n.rank,function(){return"Axis must be <= rank of the tensor"});var r=n.shape.slice();return e<0&&(P(-(n.rank+1)<=e,function(){return"Axis must be in the interval ["+-(n.rank+1)+", 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0===r&&(r=0),e<2)throw new Error("Error in oneHot: depth must be >=2, but it is "+e);var o=rn(t,"indices","oneHot","int32"),i=o.shape.concat([e]);return o=o.flatten(),Vt.runKernelFunc(function(t){return t.oneHot(o,e,n,r)},{$indices:o},function(t){return{$indices:function(){return Tn(o.shape,"float32")}}}).reshape(i)}}),gr=mn({pad_:function(t,n,e){void 0===e&&(e=0);var r=rn(t,"x","pad");if(0===r.rank)throw new Error("pad(scalar) is not defined. Pass non-scalar to pad");var o={paddings:n,constantValue:e};return Vt.runKernelFunc(function(t){return t.pad(r,n,e)},{x:r},function(t){var e=n.map(function(t){return t[0]});return{x:function(){return t.slice(e,r.shape)}}},"PadV2",o)}}),yr=mn({pad1d_:function(t,e,n){return void 0===n&&(n=0),P(2===e.length,function(){return"Invalid number of paddings. Must be length of 2."}),gr(t,[e],n)}}),xr=mn({pad2d_:function(t,e,n){return void 0===n&&(n=0),P(2===e.length&&2===e[0].length&&2===e[1].length,function(){return"Invalid number of paddings. Must be length of 2 each."}),gr(t,e,n)}}),br=mn({pad3d_:function(t,e,n){return void 0===n&&(n=0),P(3===e.length&&2===e[0].length&&2===e[1].length&&2===e[2].length,function(){return"Invalid number of paddings. Must be length of 2 each."}),gr(t,e,n)}}),wr=mn({pad4d_:function(t,e,n){return void 0===n&&(n=0),P(4===e.length&&2===e[0].length&&2===e[1].length&&2===e[2].length&&2===e[3].length,function(){return"Invalid number of paddings. Must be length of 2 each."}),gr(t,e,n)}}),Cr=mn({rand_:function(t,e,n){var r=L(t),o=null;if(null==n||"float32"===n)o=new Float32Array(r);else if("int32"===n)o=new Int32Array(r);else{if("bool"!==n)throw new Error("Unknown data type "+n);o=new Uint8Array(r)}for(var i=0;i<r;i++)o[i]=e();return Vt.makeTensor(o,t,n)}}),Er=mn({randomNormal_:function(t,e,n,r,o){if(void 0===e&&(e=0),void 0===n&&(n=1),null!=r&&"bool"===r)throw new Error("Unsupported data type "+r);for(var i=new Qn(e,n,r,!1,o),a=or(t,r),s=0;s<a.values.length;s++)a.values[s]=i.nextValue();return a.toTensor()}}),_r=mn({randomGamma_:function(t,e,n,r,o){if(void 0===n&&(n=1),void 0===r&&(r="float32"),null==n&&(n=1),null==r&&(r="float32"),"float32"!==r&&"int32"!==r)throw new Error("Unsupported data type "+r);for(var i=new Zn(e,n,r,o),a=or(t,r),s=0;s<a.values.length;s++)a.values[s]=i.nextValue();return a.toTensor()}}),Ir=mn({randomUniform_:function(t,e,n,r,o){void 0===e&&(e=0),void 0===n&&(n=1),void 0===r&&(r="float32");for(var i=or(t,r),a=new tr(e,n,null,o),s=0;s<i.values.length;s++)i.values[s]=a.nextValue();return i.toTensor()}}),Rr=mn({reshape_:function(t,e){var n=rn(t,"x","reshape",null);e=C(e,n.size),P(n.size===L(e),function(){return"new shape and old shape must have the same number of elements."});var r={shape:e};return Vt.runKernelFunc(function(t){return t.reshape(n,e)},{x:n},function(t){return{x:function(){return t.reshape(n.shape)}}},"Reshape",r)}}),kr=mn({spaceToBatchND_:function(t,r,o){var e=rn(t,"x","spaceToBatchND");return P(e.rank>=1+r.length,function(){return"input rank "+e.rank+" should be > than [blockShape] "+r.length}),P(o.length===r.length,function(){return"paddings.shape[0] "+o.length+" must be equal to [blockShape] "+r.length}),P(e.shape.reduce(function(t,e,n){return 0<n&&n<=r.length?t&&(e+o[n-1][0]+o[n-1][1])%r[n-1]==0:t},!0),function(){return"input spatial dimensions "+e.shape.slice(1)+" with paddings "+o.toString()+" must be divisible by blockShapes "+r.toString()}),Vt.runKernelFunc(function(t){return t.spaceToBatchND(e,r,o)},{$x:e},function(t){return{$x:function(){return t.batchToSpaceND(r,o)}}})}}),Sr=mn({squeeze_:function(t,e){var n=rn(t,"x","squeeze");return Rr(n,k(n.shape,e).newShape)}}),Dr=mn({stack_:function(t,e){void 0===e&&(e=0);var n=on(t,"tensors","stack");if(P(1<=n.length,function(){return"Pass at least one tensor to tf.stack"}),1===n.length)return n[0].expandDims(e);var r=n[0].rank,o=n[0].shape,i=n[0].dtype;P(e<=r,function(){return"Axis must be <= rank of the tensor"}),n.forEach(function(t){b(o,t.shape,"All tensors passed to stack must have matching shapes")}),n.forEach(function(t){P(i===t.dtype,function(){return"All tensors passed to stack must have matching dtypes"})});var a=n.map(function(t){return t.expandDims(e)});return Bn(a,e)}}),Ar=mn({tile_:function(t,s){var r=rn(t,"x","tile",null);return P(r.rank===s.length,function(){return"Error in transpose: rank of input "+r.rank+" must match length of reps 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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=Lo();if(null!=o&&D(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  "}(t);case 3: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=[Math.ceil(o[0]/2),Math.ceil(o[1]/2)];if(1===e[0]){var a=e.slice(1),s=jo(t,a);return"\n        "+p(s)+"\n        vec4 "+r+"(int b, int row, int col) {\n          return "+r+"("+Ko(["b","row","col"],[1,2])+");\n        }\n      "}var u=i[0],c=i[1],l=Math.ceil(e[2]/2),h=l*Math.ceil(e[1]/2),f=Lo();return"\n    vec4 "+r+"(int b, int row, int col) {\n      vec2 uv = packedUVfrom3D(\n        "+u+", "+c+", "+h+", "+l+", b, row, col);\n      return "+f.texture2D+"("+n+", uv);\n    }\n  "}(t);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",f="b * "+l+" + (row / 2) * "+c+" + (col / 2)",p=2;p<n-1;p++)h="int b"+p+", "+h,l*=e[n-p-1],f="b"+p+" * "+l+" + "+f;var d=Lo();return"\n    vec4 "+o+"("+h+") {\n      int index = "+f+";\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  "}(t)}}(t):function y(t){var e=t.shapeInfo.logicalShape;switch(e.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  "}(t);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        "+Ho(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  "}(t);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;if(null!=o&&D(e,o)){var i=o[0],a=o[1];return"\n    float "+r+"(int row, int col) {\n      vec2 uv = (vec2(col, row) + halfCR) / vec2("+a+".0, "+i+".0);\n      return sampleTexture("+n+", uv);\n    }\n  "}var s=k(e),u=s.newShape,c=s.keptDims,l=u;if(l.length<e.length){var h=jo(t,l);return"\n      "+y(h)+"\n      float "+r+"(int row, int col) {\n        return "+r+"("+Ko(["row","col"],c)+");\n      }\n    "}if(t.shapeInfo.isUniform)return"\n      float "+r+"(int row, int col) {\n        int index = round(dot(vec2(row, col), vec2("+e[1]+", 1)));\n        "+Ho(t)+"\n      }\n    ";var f=o[0],p=o[1],d=Go(n);return 1===p?"\n    float "+r+"(int row, int col) {\n      float index = dot(vec3(row, col, "+d+"), vec3("+e[1]+", 1, 1));\n      vec2 uv = vec2(0.5, (index + 0.5) / "+f+".0);\n      return sampleTexture("+n+", uv);\n    }\n  ":1===f?"\n    float "+r+"(int row, int col) {\n      float index = dot(vec3(row, col, "+d+"), vec3("+e[1]+", 1, 1));\n      vec2 uv = vec2((index + 0.5) / "+p+".0, 0.5);\n      return sampleTexture("+n+", uv);\n    }\n  ":"\n  float "+r+"(int row, int col) {\n    // Explicitly use integer operations as dot() only works on floats.\n    int index = row * "+e[1]+" + col + "+d+";\n    vec2 uv = uvFromFlat("+f+", "+p+", index);\n    return sampleTexture("+n+", uv);\n  }\n"}(t);case 3:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=e[1]*e[2],i=e[2],a=k(e),s=a.newShape,u=a.keptDims,c=s;if(c.length<e.length){var l=jo(t,c);return"\n        "+y(l)+"\n        float "+r+"(int row, int col, int depth) {\n          return "+r+"("+Ko(["row","col","depth"],u)+");\n        }\n      "}if(t.shapeInfo.isUniform)return"\n      float "+r+"(int row, int col, int depth) {\n        int index = round(dot(vec3(row, col, depth),\n                          vec3("+o+", "+i+", 1)));\n        "+Ho(t)+"\n      }\n    ";var h=t.shapeInfo.texShape,f=h[0],p=h[1],d=t.shapeInfo.flatOffset;if(p===o&&null==d)return"\n        float "+r+"(int row, int col, int depth) {\n          float texR = float(row);\n          float texC = dot(vec2(col, depth), vec2("+i+", 1));\n          vec2 uv = (vec2(texC, texR) + halfCR) /\n                     vec2("+p+".0, "+f+".0);\n          return sampleTexture("+n+", uv);\n        }\n      ";if(p===i&&null==d)return"\n    float "+r+"(int row, int col, int depth) {\n      float texR = dot(vec2(row, col), vec2("+e[1]+", 1));\n      float texC = float(depth);\n      vec2 uv = (vec2(texC, texR) + halfCR) / vec2("+p+".0, "+f+".0);\n      return sampleTexture("+n+", uv);\n    }\n  ";var v=Go(n);return"\n      float "+r+"(int row, int col, int depth) {\n        // Explicitly use integer operations as dot() only works on floats.\n        int index = row * "+o+" + col * "+i+" + depth + "+v+";\n        vec2 uv = uvFromFlat("+f+", "+p+", index);\n        return sampleTexture("+n+", uv);\n      }\n  "}(t);case 4:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=e[3],i=e[2]*o,a=e[1]*i,s=k(e),u=s.newShape,c=s.keptDims;if(u.length<e.length){var l=jo(t,u);return"\n      "+y(l)+"\n      float "+r+"(int row, int col, int depth, int depth2) {\n        return "+r+"("+Ko(["row","col","depth","depth2"],c)+");\n      }\n    "}if(t.shapeInfo.isUniform)return"\n      float "+r+"(int row, int col, int depth, int depth2) {\n        int index = round(dot(vec4(row, col, depth, depth2),\n                          vec4("+a+", "+i+", "+o+", 1)));\n        "+Ho(t)+"\n      }\n    ";var h=t.shapeInfo.flatOffset,f=t.shapeInfo.texShape,p=f[0],d=f[1];if(d===a&&null==h)return"\n      float "+r+"(int row, int col, int depth, int depth2) {\n        float texR = float(row);\n        float texC =\n            dot(vec3(col, depth, depth2),\n                vec3("+i+", "+o+", 1));\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                   vec2("+d+".0, "+p+".0);\n        return sampleTexture("+n+", uv);\n      }\n    ";if(d===o&&null==h)return"\n      float "+r+"(int row, int col, int depth, int depth2) {\n        float texR = dot(vec3(row, col, depth),\n                         vec3("+e[1]*e[2]+", "+e[2]+", 1));\n        float texC = float(depth2);\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                  vec2("+d+".0, "+p+".0);\n        return sampleTexture("+n+", uv);\n      }\n    ";var v=Go(n);return"\n    float "+r+"(int row, int col, int depth, int depth2) {\n      // Explicitly use integer operations as dot() only works on floats.\n      int index = row * "+a+" + col * "+i+" +\n          depth * "+o+" + depth2;\n      vec2 uv = uvFromFlat("+p+", "+d+", index + "+v+");\n      return sampleTexture("+n+", uv);\n    }\n  "}(t);case 5:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=e[4],i=e[3]*o,a=e[2]*i,s=e[1]*a,u=k(e),c=u.newShape,l=u.keptDims;if(c.length<e.length){var h=jo(t,c);return"\n      "+y(h)+"\n      float "+r+"(int row, int col, int depth, int depth2, int depth3) {\n        return "+r+"("+Ko(["row","col","depth","depth2","depth3"],l)+");\n      }\n    "}if(t.shapeInfo.isUniform)return"\n      float "+r+"(int row, int col, int depth, int depth2, int depth3) {\n        float index = dot(\n          vec4(row, col, depth, depth2),\n          vec4("+s+", "+a+", "+i+", "+o+")) +\n          depth3;\n        "+Ho(t)+"\n      }\n    ";var f=t.shapeInfo.flatOffset,p=t.shapeInfo.texShape,d=p[0],v=p[1];if(v===s&&null==f)return"\n      float "+r+"(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("+a+", "+i+", "+o+", 1));\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                   vec2("+v+".0, "+d+".0);\n        return sampleTexture("+n+", uv);\n      }\n    ";if(v===o&&null==f)return"\n      float "+r+"(int row, int col, int depth, int depth2, int depth3) {\n        float texR = dot(\n          vec4(row, col, depth, depth2),\n          vec4("+e[1]*e[2]*e[3]+",\n               "+e[2]*e[3]+", "+e[3]+", 1));\n        int texC = depth3;\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                  vec2("+v+".0, "+d+".0);\n        return sampleTexture("+n+", uv);\n      }\n    ";var m=Go(n);return"\n    float "+r+"(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 * "+s+" + col * "+a+" + depth * "+i+" +\n          depth2 * "+o+" + depth3 + "+m+";\n      vec2 uv = uvFromFlat("+d+", "+v+", index);\n      return sampleTexture("+n+", uv);\n    }\n  "}(t);case 6:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=k(e),i=o.newShape,a=o.keptDims;if(i.length<e.length){var s=jo(t,i);return"\n      "+y(s)+"\n      float "+r+"(int row, int col, int depth,\n                    int depth2, int depth3, int depth4) {\n        return "+r+"("+Ko(["row","col","depth","depth2","depth3","depth4"],a)+");\n      }\n    "}var u=e[5],c=e[4]*u,l=e[3]*c,h=e[2]*l,f=e[1]*h;if(t.shapeInfo.isUniform)return"\n      float "+r+"(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+", "+h+", "+l+", "+c+")) +\n          dot(\n            vec2(depth3, depth4),\n            vec2("+u+", 1)));\n        "+Ho(t)+"\n      }\n    ";var p=t.shapeInfo.flatOffset,d=t.shapeInfo.texShape,v=d[0],m=d[1];if(m===f&&null==p)return"\n      float "+r+"(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("+h+", "+l+", "+c+", "+u+")) +\n               float(depth4);\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                   vec2("+m+".0, "+v+".0);\n        return sampleTexture("+n+", uv);\n      }\n    ";if(m===u&&null==p)return"\n      float "+r+"(int row, int col, int depth,\n                    int depth2, int depth3, int depth4) {\n        float texR = dot(vec4(row, col, depth, depth2),\n          vec4("+e[1]*e[2]*e[3]*e[4]+",\n               "+e[2]*e[3]*e[4]+",\n               "+e[3]*e[4]+",\n               "+e[4]+")) + float(depth3);\n        int texC = depth4;\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                  vec2("+m+".0, "+v+".0);\n        return sampleTexture("+n+", uv);\n      }\n    ";var g=Go(n);return"\n    float "+r+"(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 * "+h+" + depth * "+l+" +\n          depth2 * "+c+" + depth3 * "+u+" + depth4 + "+g+";\n      vec2 uv = uvFromFlat("+v+", "+m+", index);\n      return sampleTexture("+n+", uv);\n    }\n  "}(t);default:throw new Error(e.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=io(t.shapeInfo.logicalShape,e.logicalShape),c=qo(s),l=s-a,h=["x","y","z","w","u","v"];n=0===a?"":s<2&&1<=u.length?"coords = 0;":u.map(function(t){return"coords."+h[t+l]+" = 0;"}).join("\n");var f;f=s<2&&0<a?"coords":t.shapeInfo.logicalShape.map(function(t,e){return"coords."+h[e+l]}).join(", ");var p="return outputValue;",d=1===L(t.shapeInfo.logicalShape),v=1===L(e.logicalShape);if(1!==a||d||v){if(d&&!v)p=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;-1<u.indexOf(m)&&-1<u.indexOf(g)?p="return vec4(outputValue.x);":-1<u.indexOf(m)?p="return vec4(outputValue.x, outputValue.y, outputValue.x, outputValue.y);":-1<u.indexOf(g)&&(p="return vec4(outputValue.xx, outputValue.zz);")}}else p="\n      return vec4(outputValue.xy, outputValue.xy);\n    ";return"\n    vec4 "+i+"() {\n      "+c+" coords = getOutputCoords();\n      "+n+"\n      vec4 outputValue = get"+o+"("+f+");\n      "+p+"\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&&D(a,i))return"\n      float "+o+"() {\n        return sampleTexture("+n+", resultUV);\n      }\n    ";var c=qo(u),l=io(t.shapeInfo.logicalShape,e.logicalShape),h=u-s,f=["x","y","z","w","u","v"];return"\n    float "+o+"() {\n      "+c+" coords = getOutputCoords();\n      "+(0===s?"":u<2&&1<=l.length?"coords = 0;":l.map(function(t){return"coords."+f[t+h]+" = 0;"}).join("\n"))+"\n      return get"+r+"("+(u<2&&0<s?"coords":t.shapeInfo.logicalShape.map(function(t,e){return"coords."+f[e+h]}).join(", "))+");\n    }\n  "}(t,e)),r}(t,e,r)}).join("\n"),l=e.texShape,h=Lo(),f="\n    float sampleTexture(sampler2D textureSampler, vec2 uv) {\n      return "+h.texture2D+"(textureSampler, uv).r;\n    }\n  ",p=(s=h).version+"\n    precision highp float;\n    precision highp int;\n    precision highp sampler2D;\n    "+s.varyingFs+" vec2 resultUV;\n    "+s.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    "+s.defineSpecialNaN+"\n    "+s.defineSpecialInf+"\n    "+s.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    \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\n    \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\n    \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\n  ";return a=e.isPacked?(i=function(t,e){switch(t.length){case 0:return"\n    int getOutputCoords() {\n      return 0;\n    }\n  ";case 1:return n=e,1===(r=[Math.ceil(n[0]/2),Math.ceil(n[1]/2)])[0]?"\n      int getOutputCoords() {\n        return 2 * int(resultUV.x * "+r[1]+".0);\n      }\n    ":1===r[1]?"\n      int getOutputCoords() {\n        return 2 * int(resultUV.y * "+r[0]+".0);\n      }\n    ":"\n    int getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+r[0]+", "+r[1]+"));\n      return 2 * (resTexRC.x * "+r[1]+" + resTexRC.y);\n    }\n  ";case 2:return function(t,e){var n=[Math.ceil(e[0]/2),Math.ceil(e[1]/2)];if(D(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 o=t,i=e,a=[Math.ceil(i[0]/2),Math.ceil(i[1]/2)],u=(s=Math.ceil(o[2]/2))*Math.ceil(o[1]/2),"\n    ivec3 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+a[0]+", "+a[1]+"));\n      int index = resTexRC.x * "+a[1]+" + resTexRC.y;\n\n      int b = index / "+u+";\n      index -= b * "+u+";\n\n      int r = 2 * (index / "+s+");\n      int c = imod(index, "+s+") * 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,s,u}(e.logicalShape,l),"\n    void setOutput(vec4 val) {\n      "+h.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 1===(l=e)[0]?"\n      int getOutputCoords() {\n        return int(resultUV.x * "+l[1]+".0);\n      }\n    ":1===l[1]?"\n      int getOutputCoords() {\n        return int(resultUV.y * "+l[0]+".0);\n      }\n    ":"\n    int getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+l[0]+", "+l[1]+"));\n      return resTexRC.x * "+l[1]+" + resTexRC.y;\n    }\n  ";case 2:return D(u=t,c=e)?"\n      ivec2 getOutputCoords() {\n        return ivec2(resultUV.yx * vec2("+c[0]+", "+c[1]+"));\n      }\n    ":1===u[1]?"\n      ivec2 getOutputCoords() {\n        ivec2 resTexRC = ivec2(resultUV.yx *\n                               vec2("+c[0]+", "+c[1]+"));\n        int index = resTexRC.x * "+c[1]+" + resTexRC.y;\n        return ivec2(index, 0);\n      }\n    ":1===u[0]?"\n      ivec2 getOutputCoords() {\n        ivec2 resTexRC = ivec2(resultUV.yx *\n                               vec2("+c[0]+", "+c[1]+"));\n        int index = resTexRC.x * "+c[1]+" + resTexRC.y;\n        return ivec2(0, index);\n      }\n    ":"\n    ivec2 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+c[0]+", "+c[1]+"));\n      int index = resTexRC.x * "+c[1]+" + resTexRC.y;\n      int r = index / "+u[1]+";\n      int c = index - r * "+u[1]+";\n      return ivec2(r, c);\n    }\n  ";case 3:return h=e,f=Wo(["r","c","d"],t),"\n    ivec3 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+h[0]+", "+h[1]+"));\n      int index = resTexRC.x * "+h[1]+" + resTexRC.y;\n      "+f+"\n      return ivec3(r, c, d);\n    }\n  ";case 4:return a=e,s=Wo(["r","c","d","d2"],t),"\n    ivec4 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n        vec2("+a[0]+", "+a[1]+"));\n      int index = resTexRC.x * "+a[1]+" + resTexRC.y;\n      "+s+"\n      return ivec4(r, c, d, d2);\n    }\n  ";case 5:return o=e,i=Wo(["r","c","d","d2","d3"],t),"\n    ivec5 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx * vec2("+o[0]+",\n                             "+o[1]+"));\n\n      int index = resTexRC.x * "+o[1]+" + resTexRC.y;\n\n      "+i+"\n\n      ivec5 outShape = ivec5(r, c, d, d2, d3);\n      return outShape;\n    }\n  ";case 6:return n=e,r=Wo(["r","c","d","d2","d3","d4"],t),"\n    ivec6 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n        vec2("+n[0]+", "+n[1]+"));\n      int index = resTexRC.x * "+n[1]+" + resTexRC.y;\n\n      "+r+"\n\n      ivec6 result = ivec6(r, c, d, d2, d3, d4);\n      return result;\n    }\n  ";default:throw new Error(t.length+"-D output sampling is not yet supported")}var n,r,o,i,a,s,u,c,l,h,f}(e.logicalShape,l),"\n    void setOutput(float val) {\n      "+h.output+" = vec4(val, 0, 0, 0);\n    }\n  "),r&&(p+="\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"),[p,f,a,u,i,c,n].join("\n")}function Go(t){return"offset"+t}function Ho(t){var e=t.name,n=L(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 qo(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 jo(t,e){var n=JSON.parse(JSON.stringify(t));return n.shapeInfo.logicalShape=e,n}function Ko(e,t){return t.map(function(t){return e[t]}).join(", ")}var Xo=function(t,e,n,r){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,P(2<t.length,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),1<i&&this.outputShape.push(i),r||this.variableNames.push("bestIndicesA");var a,s,u=this.outputShape,c=u.length,l=qo(c),h=Bo("coords",c);if(1===i){var f=qo(s=c+1);a="\n        "+f+" sourceLocR = "+f+"("+h.join()+", 0);\n        ++"+h[c-1]+";\n        "+f+" sourceLocG = "+f+"("+h.join()+", 0);\n        ++"+h[c-2]+";\n        "+f+" sourceLocA = "+f+"("+h.join()+", 0);\n        --"+h[c-1]+";\n        "+f+" sourceLocB = "+f+"("+h.join()+", 0);\n        --"+h[c-2]+";"}else a="\n        "+l+" sourceLocR = coords;\n        ++"+h[(s=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 p=["x","y","z","w","u","v"].slice(0,s),d="."+p[s-1],v=p.map(function(t){return"int "+t}),m=Bo("sourceLocR",s-1).concat("inIdx.r"),g=Bo("sourceLocG",s-1).concat("inIdx.g"),y=Bo("sourceLocB",s-1).concat("inIdx.b"),x=Bo("sourceLocA",s-1).concat("inIdx.a"),b="max"===n?"greaterThan":"lessThan",w=r?"":"\n          inIdx = round(vec4(getBestIndicesAChannel("+m.join()+"),\n                             getBestIndicesAChannel("+g.join()+"),\n                             getBestIndicesAChannel("+y.join()+"),\n                             getBestIndicesAChannel("+x.join()+")));",C="vec4(\n            getAChannel("+m.join()+"),\n            hasNextCol ? getAChannel("+g.join()+") : 0.,\n            hasNextRow ? getAChannel("+y.join()+") : 0.,\n            hasNextRow && hasNextCol ? getAChannel("+x.join()+") : 0.)",E=r?"":"\n      float getBestIndicesAChannel("+v.join()+") {\n        return getChannel(getBestIndicesA("+p.join()+"),\n                                          vec2("+p.slice(-2).join()+"));\n      }";this.userCode="\n      float getAChannel("+v.join()+") {\n        return getChannel(getA("+p.join()+"),\n                               vec2("+p.slice(-2).join()+"));\n      }\n      "+E+"\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 = "+C+";\n\n        for (int i = 0; i < "+e+"; i++) {\n          inIdx = srcIdx;\n          "+w+"\n          vec4 candidate = "+C+";\n          bvec4 nan = isnan(candidate);\n          bvec4 replace = bvec4(\n            vec4("+b+"(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    "},$o=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    "},Yo=function(t){this.variableNames=["dy"],this.outputShape=t.inShape;var e=t.filterDepth,n=t.filterHeight,r=t.filterWidth,o=t.strideDepth,i=t.strideHeight,a=t.strideWidth,s=t.dilationDepth,u=t.dilationHeight,c=t.dilationWidth,l=t.effectiveFilterDepth,h=t.effectiveFilterHeight,f=t.effectiveFilterWidth,p=l-1-t.padInfo.front,d=h-1-t.padInfo.top,v=f-1-t.padInfo.left,m=1/(e*n*r);this.userCode="\n      const ivec3 pads = ivec3("+p+", "+d+", "+v+");\n      const float avgMultiplier = float("+m+");\n\n      void main() {\n        ivec5 coords = getOutputCoords();\n        int batch = coords.x;\n        int ch = coords.u;\n\n        ivec3 dyCorner = ivec3(coords.y, coords.z, coords.w) - pads;\n        int dyDCorner = dyCorner.x;\n        int dyRCorner = dyCorner.y;\n        int dyCCorner = dyCorner.z;\n\n        // Convolve dy(?, ?, ?, d) with pos mask(:, :, :, ch) to get\n        // dx(xD, xR, xC, ch).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n\n        for (int wD = 0; wD < "+l+";\n            wD += "+s+") {\n          float dyD = float(dyDCorner + wD) / "+o+".0;\n\n          if (dyD < 0.0 || dyD >= "+t.outDepth+".0 || fract(dyD) > 0.0) {\n            continue;\n          }\n          int idyD = int(dyD);\n\n          for (int wR = 0; wR < "+h+";\n              wR += "+u+") {\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            for (int wC = 0; wC < "+f+";\n                wC += "+c+") {\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              float dyValue = getDy(batch, idyD, idyR, idyC, ch);\n\n              dotProd += dyValue * avgMultiplier;\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},Jo=function(t,e,n,r,o,i){this.outputShape=[],this.variableNames=["x","mean","variance"],so(t,e),so(t,n);var a="0.0";null!=r&&(so(t,r),this.variableNames.push("offset"),a="getOffsetAtOutCoords()");var s="1.0";null!=o&&(so(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    "},Qo=function(t,e,n,r,o,i){this.packedInputs=!0,this.packedOutput=!0,this.variableNames=["x","mean","variance"],so(t,e),so(t,n);var a="vec4(0.0)";null!=r&&(so(t,r),this.variableNames.push("offset"),a="getOffsetAtOutCoords()");var s="vec4(1.0)";null!=o&&(so(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    "},Zo=function(t,e,n){this.variableNames=["AReal","AImag","BReal","BImag"],this.outputShape=so(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    "},ti="return a + b;",ei="return a - b;",ni="return a * b;",ri="return (a < 0.) ? b * a : a;",oi=function(t,e,n){this.variableNames=["A","B"],this.outputShape=so(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    "},ii="\n  vec4 aLessThanZero = vec4(lessThan(a, vec4(0.)));\n  return (aLessThanZero * (b * a)) + ((vec4(1.0) - aLessThanZero) * a);\n",ai=function(t,e,n,r){void 0===r&&(r=!1),this.variableNames=["A","B"],this.supportsBroadcasting=!0,this.packedInputs=!0,this.packedOutput=!0,this.outputShape=so(e,n);var o=this.outputShape.length,i="";if(r)if(0===o||1===L(this.outputShape))i="\n          result.y = 0.;\n          result.z = 0.;\n          result.w = 0.;\n        ";else if(i="\n          "+qo(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=Bo("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    "},si=(pi.prototype.getCustomSetupFunc=function(n,r){var o=this;return function(t,e){null==o.minLoc&&(o.minLoc=t.getUniformLocationNoThrow(e,"minVal"),o.maxLoc=t.getUniformLocationNoThrow(e,"maxVal")),t.gl.uniform1f(o.minLoc,n),t.gl.uniform1f(o.maxLoc,r)}},pi),ui=(fi.prototype.getCustomSetupFunc=function(n,r){var o=this;return function(t,e){null==o.minLoc&&(o.minLoc=t.getUniformLocationNoThrow(e,"minVal"),o.maxLoc=t.getUniformLocationNoThrow(e,"maxVal")),t.gl.uniform1f(o.minLoc,n),t.gl.uniform1f(o.maxLoc,r)}},fi),ci=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    "},li=function(t){this.outputShape=[],this.outputShape=vn(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    "},hi=function(t,e){this.packedInputs=!0,this.packedOutput=!0,this.outputShape=[],this.outputShape=vn(t,e);var n=this.outputShape,r=n.length,o=qo(r),i=Bo("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=a.slice(-2),h=a.join(),f="if ("+c+" < "+s[0]+") {\n        return getChannel(\n            getT0("+h+"), vec2("+l.join()+"));\n        }";for(u=1;u<s.length;u++){var p=s[u-1];f+="\n        if ("+c+" < "+s[u]+"  && "+c+" >= "+s[u-1]+") {\n          return getChannel(\n            getT"+u+"("+di(a,c,p)+"),\n            vec2("+di(l,c,p)+"));\n        }"}var d=s.length,v=s[s.length-1];f+="\n        return getChannel(\n          getT"+d+"("+di(a,c,v)+"),\n          vec2("+di(l,c,v)+"));",this.userCode="\n      float getValue("+a.map(function(t){return"int "+t})+") {\n        "+f+"\n      }\n\n      void main() {\n        "+o+" coords = getOutputCoords();\n        vec4 result = vec4(getValue("+i+"), 0., 0., 0.);\n\n        "+i[r-1]+" = "+i[r-1]+" + 1;\n        if ("+i[r-1]+" < "+n[r-1]+") {\n          result.g = getValue("+i+");\n        }\n\n        "+i[r-2]+" = "+i[r-2]+" + 1;\n        if ("+i[r-2]+" < "+n[r-2]+") {\n          result.a = getValue("+i+");\n        }\n\n        "+i[r-1]+" = "+i[r-1]+" - 1;\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    "};function fi(t){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t,this.userCode="\n      uniform float minVal;\n      uniform float maxVal;\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(minVal), vec4(maxVal)));\n      }\n    "}function pi(t){this.variableNames=["A"],this.outputShape=t,this.userCode="\n      uniform float minVal;\n      uniform float maxVal;\n\n      void main() {\n        float value = getAAtOutCoords();\n        if (isnan(value)) {\n          setOutput(value);\n          return;\n        }\n\n        setOutput(clamp(value, minVal, maxVal));\n      }\n    "}function di(t,e,n){var r=t.indexOf(e);return t.map(function(t,e){return e===r?t+" - "+n:t}).join()}var vi=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="channelsLast"===t.dataFormat;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              if ("+i+") {\n                float dyValue = getDy(b, yR, yC, d2);\n                float xValue = getX(b, xR, xC, d1);\n                dotProd += (xValue * dyValue);\n              } else {\n                float dyValue = getDy(b, d2, yR, yC);\n                float xValue = getX(b, d1, xR, xC);\n                dotProd += (xValue * dyValue);\n              }\n\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},mi=function(t){this.variableNames=["dy","W"],this.outputShape=t.inShape;var e=t.filterHeight,n=t.filterWidth,r=t.strideHeight,o=t.strideWidth,i="channelsLast"===t.dataFormat,a=e-1-t.padInfo.top,s=n-1-t.padInfo.left,u=i?1:2,c=i?2:3,l=i?3:1;this.userCode="\n      const ivec2 pads = ivec2("+a+", "+s+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int batch = coords[0];\n        int d1 = coords["+l+"];\n\n        ivec2 dyCorner = ivec2(coords["+u+"], coords["+c+"]) - 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\n              if ("+i+") {\n                float xValue = getDy(batch, idyR, idyC, d2);\n                float wValue = getW(wRPerm, wCPerm, d1, d2);\n                dotProd += xValue * wValue;\n              } else {\n                float xValue = getDy(batch, d2, idyR, idyC);\n                float wValue = getW(wRPerm, wCPerm, d1, d2);\n                dotProd += xValue * wValue;\n              }\n\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},gi=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    "},yi=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    "},xi=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        // TO DO: 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    "},bi=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            // TO DO: 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    "},wi=function(t,e,n,r){void 0===e&&(e=!1),void 0===n&&(n=null),void 0===r&&(r=!1),this.variableNames=["x","W"],this.outputShape=t.outShape;var o=t.padInfo.top,i=t.padInfo.left,a=t.strideHeight,s=t.strideWidth,u=t.dilationHeight,c=t.dilationWidth,l=t.filterHeight,h=t.filterWidth,f=4*Math.floor(t.inChannels/4),p=t.inChannels%4,d="channelsLast"===t.dataFormat,v=d?1:2,m=d?2:3,g=d?3:1,y="",x="";n&&(y=r?"float activation(float a) {\n          float b = getPreluActivationWeightsAtOutCoords();\n          "+n+"\n        }":"\n          float activation(float x) {\n            "+n+"\n          }\n        ",x="result = activation(result);");var b=e?"result += getBiasAtOutCoords();":"";e&&this.variableNames.push("bias"),r&&this.variableNames.push("preluActivationWeights"),this.userCode="\n      "+y+"\n\n      const ivec2 strides = ivec2("+a+", "+s+");\n      const ivec2 pads = ivec2("+o+", "+i+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int batch = coords[0];\n        int d2 = coords["+g+"];\n\n        ivec2 xRCCorner =\n            ivec2(coords["+v+"], coords["+m+"]) * 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 < "+l+"; 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 < "+h+"; 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 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              if ("+d+") {\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                dotProd += dot(xValues, wValues);\n              } else {\n                vec4 xValues = vec4(\n                  getX(batch, d1, xR, xC),\n                  getX(batch, d1 + 1, xR, xC),\n                  getX(batch, d1 + 2, xR, xC),\n                  getX(batch, d1 + 3, xR, xC)\n                );\n                dotProd += dot(xValues, wValues);\n              }\n            }\n\n            if ("+(1==p)+") {\n\n              if ("+d+") {\n                dotProd +=\n                    getX(batch, xR, xC, "+f+") *\n                    getW(wR, wC, "+f+", d2);\n              } else {\n                dotProd +=\n                    getX(batch, "+f+", xR, xC) *\n                    getW(wR, wC, "+f+", d2);\n              }\n\n            } else if ("+(2==p)+") {\n              vec2 wValues = vec2(\n                getW(wR, wC, "+f+", d2),\n                getW(wR, wC, "+f+" + 1, d2)\n              );\n\n              if ("+d+") {\n                vec2 xValues = vec2(\n                  getX(batch, xR, xC, "+f+"),\n                  getX(batch, xR, xC, "+f+" + 1)\n                );\n                dotProd += dot(xValues, wValues);\n              } else {\n                vec2 xValues = vec2(\n                  getX(batch, "+f+", xR, xC),\n                  getX(batch, "+f+" + 1, xR, xC)\n                );\n                dotProd += dot(xValues, wValues);\n              }\n\n            } else if ("+(3==p)+") {\n              vec3 wValues = vec3(\n                getW(wR, wC, "+f+", d2),\n                getW(wR, wC, "+f+" + 1, d2),\n                getW(wR, wC, "+f+" + 2, d2)\n              );\n\n              if ("+d+") {\n                vec3 xValues = vec3(\n                  getX(batch, xR, xC, "+f+"),\n                  getX(batch, xR, xC, "+f+" + 1),\n                  getX(batch, xR, xC, "+f+" + 2)\n                );\n                dotProd += dot(xValues, wValues);\n              } else {\n                vec3 xValues = vec3(\n                  getX(batch, "+f+", xR, xC),\n                  getX(batch, "+f+" + 1, xR, xC),\n                  getX(batch, "+f+" + 2, xR, xC)\n                );\n                dotProd += dot(xValues, wValues);\n              }\n\n            }\n          }\n        }\n\n        float result = dotProd;\n        "+b+"\n        "+x+"\n        setOutput(result);\n      }\n    "},Ci=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,f=t.filterWidth,p=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 < "+f+"; 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 < "+p+"; 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, "+p+") *\n                  getW(wF, wR, wC, "+p+", d2);\n              } else if ("+(2==d)+") {\n                vec2 xValues = vec2(\n                  getX(batch, xF, xR, xC, "+p+"),\n                  getX(batch, xF, xR, xC, "+p+" + 1)\n                );\n                vec2 wValues = vec2(\n                  getW(wF, wR, wC, "+p+", d2),\n                  getW(wF, wR, wC, "+p+" + 1, d2)\n                );\n                dotProd += dot(xValues, wValues);\n              } else if ("+(3==d)+") {\n                vec3 xValues = vec3(\n                  getX(batch, xF, xR, xC, "+p+"),\n                  getX(batch, xF, xR, xC, "+p+" + 1),\n                  getX(batch, xF, xR, xC, "+p+" + 2)\n                );\n                vec3 wValues = vec3(\n                  getW(wF, wR, wC, "+p+", d2),\n                  getW(wF, wR, wC, "+p+" + 1, d2),\n                  getW(wF, wR, wC, "+p+" + 2, d2)\n                );\n                dotProd += dot(xValues, wValues);\n              }\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},Ei=function(t,e,n,r){void 0===e&&(e=!1),void 0===n&&(n=null),void 0===r&&(r=!1),this.variableNames=["x","W"],this.outputShape=t.outShape;var o=t.inHeight,i=t.inWidth,a=t.padInfo.top,s=t.padInfo.left,u=t.strideHeight,c=t.strideWidth,l=t.dilationHeight,h=t.dilationWidth,f=t.filterHeight,p=t.filterWidth,d=t.outChannels/t.inChannels,v="",m="";n&&(v=r?"float activation(float a) {\n          float b = getPreluActivationWeightsAtOutCoords();\n          "+n+"\n        }":"\n          float activation(float x) {\n            "+n+"\n          }\n        ",m="result = activation(result);");var g=e?"result += getBiasAtOutCoords();":"";e&&this.variableNames.push("bias"),r&&this.variableNames.push("preluActivationWeights"),this.userCode="\n      "+v+"\n\n      const ivec2 strides = ivec2("+u+", "+c+");\n      const ivec2 pads = ivec2("+a+", "+s+");\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 / "+d+";\n        int q = d2 - d1 * "+d+";\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        // TO DO(dsmilkov): Flatten the two for loops and vec4 the operations.\n        for (int wR = 0; wR < "+f+"; wR++) {\n          int xR = xRCorner + wR * "+l+";\n\n          if (xR < 0 || xR >= "+o+") {\n            continue;\n          }\n\n          for (int wC = 0; wC < "+p+"; wC++) {\n            int xC = xCCorner + wC * "+h+";\n\n            if (xC < 0 || xC >= "+i+") {\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\n        float result = dotProd;\n        "+g+"\n        "+m+"\n        setOutput(result);\n      }\n    "},_i=function(t,e,n,r){void 0===e&&(e=!1),void 0===n&&(n=null),void 0===r&&(r=!1),this.variableNames=["x","W"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t.outShape;for(var o=t.inHeight,i=t.inWidth,a=t.padInfo.top,s=t.padInfo.left,u=t.strideHeight,c=t.strideWidth,l=t.dilationHeight,h=t.dilationWidth,f=t.filterHeight,p=t.filterWidth,d=p,v="int xR; int xC; int xCOffset;",m=0;m<f;m++)for(var g=0;g<p;g++)v+="\n          vec4 xTexelR"+m+"C"+2*g+" = vec4(0.);\n          vec4 wR"+m+"C"+g+" = vec4(0.);\n          vec4 xR"+m+"C"+g+" = vec4(0.);";for(m=0;m<f;m++)for(var y=0;y<d;y++){if(v+="\n          xR = xRCorner + "+m*l+";\n          xC = xCCorner + "+(g=2*y)*h+";\n        ",1===c){if(g<p&&(v+=s%2==1?"\n                xCOffset = xC + 1;\n                if(xR >= 0 && xR < "+o+" && xCOffset >= 0 && xCOffset < "+i+") {\n                  xTexelR"+m+"C"+g+" = getX(batch, xR, xCOffset, d1);\n                } else {\n                  xTexelR"+m+"C"+g+" = vec4(0.);\n                }\n\n                xCOffset = xC + 1 - 2;\n                if(xR >= 0 && xR < "+o+" && xCOffset >= 0 && xCOffset < "+i+") {\n                  vec4 previous = getX(batch, xR, xCOffset, d1);\n                  xR"+m+"C"+g+" = vec4(previous.zw, xTexelR"+m+"C"+g+".xy);\n                } else {\n                  xR"+m+"C"+g+" = vec4(0, 0, xTexelR"+m+"C"+g+".xy);\n                }\n              ":"\n                if(xR >= 0 && xR < "+o+" && xC >= 0 && xC < "+i+") {\n                  xTexelR"+m+"C"+g+" = getX(batch, xR, xC, d1);\n                } else {\n                  xTexelR"+m+"C"+g+" = vec4(0.);\n                }\n\n                xR"+m+"C"+g+" = xTexelR"+m+"C"+g+";\n              ",g+1<p)){var x=s%2==0?E(h):h;h%2==0&&s%2==1||h%2!=0&&s%2!=1?(v+="\n                  xCOffset = xC + "+s%2+" + "+x+";\n\n                  if(xR >= 0 && xR < "+o+" &&\n                    xCOffset >= 0 && xCOffset < "+i+") {\n                    xTexelR"+m+"C"+(g+2)+" = getX(batch, xR, xCOffset, d1);\n                  }\n                ",1<h&&(v+="\n                    xCOffset -= 2;\n                    if(xR >= 0 && xR < "+o+" &&\n                      xCOffset >= 0 && xCOffset < "+i+") {\n                      xTexelR"+m+"C"+g+" = getX(batch, xR, xCOffset, d1);\n                    } else {\n                      xTexelR"+m+"C"+g+" = vec4(0.);\n                    }\n                  "),v+="\n                  xR"+m+"C"+(g+1)+" = vec4(\n                    xTexelR"+m+"C"+g+".zw, xTexelR"+m+"C"+(g+2)+".xy);\n                "):v+="\n                  xCOffset = xC + "+x+";\n\n                  if(xR >= 0 && xR < "+o+" &&\n                    xCOffset >= 0 && xCOffset < "+i+") {\n                    xTexelR"+m+"C"+(g+2)+" = getX(batch, xR, xCOffset, d1);\n                  }\n\n                  xR"+m+"C"+(g+1)+" = xTexelR"+m+"C"+(g+2)+";\n                "}}else g<p&&(v+="\n              if(xR >= 0 && xR < "+o+") {\n            ",s%2==1?(v+="\n                xCOffset = xC + 1 - "+c+";\n                if(xCOffset >= 0 && xCOffset < "+i+") {\n                  xTexelR"+m+"C"+g+" = getX(batch, xR, xCOffset, d1);\n                } else {\n                  xTexelR"+m+"C"+g+" = vec4(0.);\n                }\n\n                if(xC + 1 >= 0 && xC + 1 < "+i+") {\n                  xTexelR"+m+"C"+(g+2)+" = getX(batch, xR, xC + 1, d1);\n                } else {\n                  xTexelR"+m+"C"+(g+2)+" = vec4(0.);\n                }\n\n                xR"+m+"C"+g+" = vec4(\n                  xTexelR"+m+"C"+g+".zw, xTexelR"+m+"C"+(g+2)+".zw);\n              ",g+1<p&&(v+="\n                  vec4 final = vec4(0.);\n                  xCOffset = xC + 1 + "+c+";\n                  if(xCOffset >= 0 && xCOffset < "+i+") {\n                    final = getX(batch, xR, xCOffset, d1);\n                  }\n                  xR"+m+"C"+(g+1)+" = vec4(xTexelR"+m+"C"+(g+2)+".xy, final.xy);\n                ")):(v+="\n                if(xC >= 0 && xC < "+i+") {\n                  xTexelR"+m+"C"+g+" = getX(batch, xR, xC, d1);\n                } else {\n                  xTexelR"+m+"C"+g+" = vec4(0.);\n                }\n\n                xCOffset = xC + "+c+";\n                if(xCOffset >= 0 && xCOffset < "+i+") {\n                  xTexelR"+m+"C"+(g+2)+" = getX(batch, xR, xCOffset, d1);\n                } else {\n                  xTexelR"+m+"C"+(g+2)+" = vec4(0.);\n                }\n\n                xR"+m+"C"+g+" = vec4(\n                  xTexelR"+m+"C"+g+".xy, xTexelR"+m+"C"+(g+2)+".xy);\n              ",g+1<p&&(v+="\n                  xR"+m+"C"+(g+1)+" = vec4(\n                    xTexelR"+m+"C"+g+".zw, xTexelR"+m+"C"+(g+2)+".zw);\n                ")),v+="}");g<p&&(v+="\n            vec4 wTexelR"+m+"C"+g+" = getW("+m+", "+g+", d1, q);\n            wR"+m+"C"+g+" = vec4(wTexelR"+m+"C"+g+".xz, wTexelR"+m+"C"+g+".xz);\n          ",g+1<p&&(v+="\n              vec4 wTexelR"+m+"C"+(g+1)+" = getW("+m+", "+(g+1)+", d1, q);\n              wR"+m+"C"+(g+1)+" =\n                vec4(wTexelR"+m+"C"+(g+1)+".xz, wTexelR"+m+"C"+(g+1)+".xz);"))}for(m=0;m<f;m++)for(g=0;g<p;g++)v+="dotProd += xR"+m+"C"+g+" * wR"+m+"C"+g+";";var b="",w="";n&&(b=r?"vec4 activation(vec4 a) {\n          vec4 b = getPreluActivationWeightsAtOutCoords();\n          "+n+"\n        }":"vec4 activation(vec4 x) {\n          "+n+"\n        }",w="result = activation(result);");var C=e?"result += getBiasAtOutCoords();":"";e&&this.variableNames.push("bias"),r&&this.variableNames.push("preluActivationWeights"),this.userCode="\n      "+b+"\n\n      const ivec2 strides = ivec2("+u+", "+c+");\n      const ivec2 pads = ivec2("+a+", "+s+");\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 dotProd = vec4(0.);\n\n        "+v+"\n\n        vec4 result = dotProd;\n        "+C+"\n        "+w+"\n        setOutput(result);\n      }\n    "},Ii=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 f="bilinear"===r?1:0,p=[a-1+".0",s-1+".0"],d=p[0],v=p[1],m=1<l?[""+(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=1<h?[""+(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("+f+" == 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    "},Ri=function(t,e,n){this.variableNames=["x"];var r=(this.outputShape=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        "+qo(r)+" coords = getOutputCoords();\n        int end = "+ki(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          "+ki(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"coords.x, coords.y, coords.z";if(4===r)return"coords.x, coords.y, coords.z, coords.w";throw Error("Cumulative sum for rank "+r+" is not yet supported")}(0,"coords")+");\n        }\n        setOutput(val);\n      }\n    "};function ki(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 Si=function(t){this.variableNames=["A"],this.packedInputs=!1,this.packedOutput=!0,this.outPackingScheme=qt.DENSE;var e=ne(t),n=Lo();this.outputShape=t,this.userCode="\n      ivec3 outCoordsFromFlatIndex(int index) {\n        "+Wo(["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    "},Di=function(t){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outPackingScheme=qt.DENSE;var e=ne(t),n=Lo();this.outputShape=t,this.userCode="\n      ivec3 outCoordsFromFlatIndex(int index) {\n        "+Wo(["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    "},Ai=(zi.prototype.getHeightCoordString=function(){return"NHWC"===this.dataFormat?"coords[1]":"coords[2]"},zi.prototype.getWidthCoordString=function(){return"NHWC"===this.dataFormat?"coords[2]":"coords[3]"},zi.prototype.getDepthCoordString=function(){return"NHWC"===this.dataFormat?"coords[3]":"coords[1]"},zi.prototype.getOutputDepthSize=function(){return"NHWC"===this.dataFormat?this.outputShape[3]:this.outputShape[1]},zi.prototype.getInputSamplingString=function(){return"NHWC"===this.dataFormat?"getX(b, in_h, in_w, in_d)":"getX(b, in_d, in_h, in_w)"},zi),Ti=function(t){this.variableNames=["X"],this.outputShape=[t,t],this.userCode="\n      void main() {\n          ivec2 coords = getOutputCoords();\n          float val = coords[0] == coords[1] ? getX(coords[0]) : 0.0;\n          setOutput(val);\n      }\n    "},Fi=function(t){this.variableNames=["A"],this.outTexUsage=jt.DOWNLOAD;var e=Lo();this.outputShape=t,this.userCode="\n      "+Uo+"\n\n      void main() {\n        float x = getAAtOutCoords();\n        "+e.output+" = encode_float(x);\n      }\n    "},Ni=function(t){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!1,this.outTexUsage=jt.DOWNLOAD;var e=Lo();this.outputShape=t,this.userCode="\n      "+Uo+"\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    "},Mi=function(t,e,n){void 0===n&&(n=!1),this.variableNames=["A"];var r=Lo(),o=e[0],i=e[1];this.outputShape=t;var a="result";n&&(a="floor(result * 255. + 0.5)"),this.userCode="\n      "+zo(t)+"\n\n      void main() {\n        ivec3 coords = getOutputCoords();\n\n        int flatIndex = getFlatIndex(coords);\n        int offset = imod(flatIndex, 4);\n\n        flatIndex = idiv(flatIndex, 4, 1.);\n        \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"],this.packedInputs=!1,this.packedOutput=!0;var r=Lo(),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 = idiv(flatIndex, 4, 1.);\n\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      "+zo(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    "},Pi=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    "},Bi=(Wi.prototype.getCustomSetupFunc=function(n){var r=this;return function(t,e){null==r.valueLoc&&(r.valueLoc=t.getUniformLocationNoThrow(e,"value")),t.gl.uniform1f(r.valueLoc,n)}},Wi),Li=function(t,e,n){this.variableNames=["A","indices"];var r=t.slice();r[n]=e,this.outputShape=r,this.rank=r.length;var o=qo(this.rank),i=function(t,e){var n=t.length;if(4<n)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    "};function Wi(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    "}function zi(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  "}var Ui=function(t,e,n){this.sliceDim=t,this.strides=e,this.variableNames=["x","indices"],this.outputShape=n;var r=qo(e.length),o=qo(n.length),i=1<this.sliceDim?"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 Vi(t,e){var n=Lo();return ce(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 Gi(t,e){return ge(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 Hi(t,e){return ye(t,e,new Uint16Array([0,1,2,2,1,3]))}function qi(t,e,n,r,o,i,a){be(n,r);var s=xe(t,e),u=t.TEXTURE_2D;return ie(t,e,function(){return t.bindTexture(u,s)}),ie(t,e,function(){return t.texParameteri(u,t.TEXTURE_WRAP_S,t.CLAMP_TO_EDGE)}),ie(t,e,function(){return t.texParameteri(u,t.TEXTURE_WRAP_T,t.CLAMP_TO_EDGE)}),ie(t,e,function(){return t.texParameteri(u,t.TEXTURE_MIN_FILTER,t.NEAREST)}),ie(t,e,function(){return t.texParameteri(u,t.TEXTURE_MAG_FILTER,t.NEAREST)}),ie(t,e,function(){return t.texImage2D(u,0,o,n,r,0,i,a,null)}),ie(t,e,function(){return t.bindTexture(t.TEXTURE_2D,null)}),s}function ji(t,e,n,r,o){var i=ee(n,r);return qi(t,e,i[0],i[1],o.internalFormatFloat,o.textureFormatFloat,t.FLOAT)}function Ki(t,e,n,r,o){var i=ee(n,r);return qi(t,e,i[0],i[1],o.internalFormatHalfFloat,o.textureFormatFloat,o.textureTypeHalfFloat)}function Xi(t,e,n,r,o){var i=ee(n,r);return qi(t,e,i[0],i[1],t.RGBA,t.RGBA,t.UNSIGNED_BYTE)}function $i(t,e,n,r,o){var i=re(n,r);return qi(t,e,i[0],i[1],o.internalFormatPackedFloat,t.RGBA,t.FLOAT)}function Yi(t,e,n,r,o){var i=re(n,r);return qi(t,e,i[0],i[1],o.internalFormatPackedHalfFloat,t.RGBA,o.textureTypeHalfFloat)}function Ji(t,e,n,r){return ie(t,e,function(){return t.bindBuffer(t.ARRAY_BUFFER,r)}),Ce(t,e,n,"clipSpacePos",r,3,20,0)&&Ce(t,e,n,"uv",r,2,20,12)}function Qi(t,e,n,r,o,i,a){var s,u,c;ie(t,e,function(){return t.bindTexture(t.TEXTURE_2D,n)}),c=i instanceof Uint8Array?(s=new Uint8Array(r*o*4),u=t.UNSIGNED_BYTE,t.RGBA):(s=new Float32Array(r*o*4),u=t.FLOAT,a.internalFormatPackedFloat),s.set(i),ie(t,e,function(){return t.texImage2D(t.TEXTURE_2D,0,c,r,o,0,t.RGBA,u,s)}),ie(t,e,function(){return t.bindTexture(t.TEXTURE_2D,null)})}function Zi(t,e,n,r){ie(t,e,function(){return t.bindTexture(t.TEXTURE_2D,n)}),r.data instanceof Uint8Array?ie(t,e,function(){return t.texImage2D(t.TEXTURE_2D,0,t.RGBA,r.width,r.height,0,t.RGBA,t.UNSIGNED_BYTE,r.data)}):ie(t,e,function(){return t.texImage2D(t.TEXTURE_2D,0,t.RGBA,t.RGBA,t.UNSIGNED_BYTE,r)}),ie(t,e,function(){return t.bindTexture(t.TEXTURE_2D,null)})}function ta(t,e,n,r,o){var i=t.createBuffer();ie(t,e,function(){return t.bindBuffer(t.PIXEL_PACK_BUFFER,i)});var a=16*n*r;return ie(t,e,function(){return t.bufferData(t.PIXEL_PACK_BUFFER,a,t.STREAM_READ)}),ie(t,e,function(){return t.readPixels(0,0,r,n,t.RGBA,t.FLOAT,0)}),ie(t,e,function(){return t.bindBuffer(t.PIXEL_PACK_BUFFER,null)}),i}function ea(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 na(t,e,n,r,o){var i=ee(n,r),a=i[0],s=i[1],u=new Uint8Array(n*r*4);return ie(t,e,function(){return t.readPixels(0,0,a,s,o.downloadTextureFormat,t.UNSIGNED_BYTE,u)}),new Float32Array(u.buffer)}function ra(t,e,n,r,o,i,a,s){var u,c=t,l=new Float32Array((u=re(i,a))[0]*u[1]*4);return c.bindBuffer(c.PIXEL_PACK_BUFFER,e),c.getBufferSubData(c.PIXEL_PACK_BUFFER,0,l),c.bindBuffer(c.PIXEL_PACK_BUFFER,null),l}function oa(t,e,n,r){var o=new Float32Array(n*r*4);return ie(t,e,function(){return t.readPixels(0,0,r,n,t.RGBA,t.FLOAT,o)}),o}var ia=Object.freeze({createVertexShader:Vi,createVertexBuffer:Gi,createIndexBuffer:Hi,createFloat32MatrixTexture:ji,createFloat16MatrixTexture:Ki,createUnsignedBytesMatrixTexture:Xi,createPackedMatrixTexture:$i,createFloat16PackedMatrixTexture:Yi,bindVertexProgramAttributeStreams:Ji,uploadDenseMatrixToTexture:Qi,uploadPixelDataToTexture:Zi,createBufferFromOutputTexture:ta,downloadFloat32MatrixFromBuffer:ea,downloadByteEncodedFloatMatrixFromOutputTexture:na,downloadPackedMatrixFromBuffer:ra,downloadMatrixFromPackedOutputTexture:oa}),aa=(Object.defineProperty(sa.prototype,"debug",{get:function(){return _().getBool("DEBUG")},enumerable:!0,configurable:!0}),sa.prototype.dispose=function(){var t=this;if(!this.disposed){null!=this.program&&console.warn("Disposing a GPGPUContext that still has a bound WebGLProgram. 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;ie(e,this.debug,function(){return e.finish()}),ie(e,this.debug,function(){return e.bindFramebuffer(e.FRAMEBUFFER,null)}),ie(e,this.debug,function(){return e.deleteFramebuffer(t.framebuffer)}),ie(e,this.debug,function(){return e.bindBuffer(e.ARRAY_BUFFER,null)}),ie(e,this.debug,function(){return e.bindBuffer(e.ELEMENT_ARRAY_BUFFER,null)}),ie(e,this.debug,function(){return e.deleteBuffer(t.indexBuffer)}),this.disposed=!0}},sa.prototype.createFloat32MatrixTexture=function(t,e){return this.throwIfDisposed(),ji(this.gl,this.debug,t,e,this.textureConfig)},sa.prototype.createFloat16MatrixTexture=function(t,e){return this.throwIfDisposed(),Ki(this.gl,this.debug,t,e,this.textureConfig)},sa.prototype.createUnsignedBytesMatrixTexture=function(t,e){return this.throwIfDisposed(),Xi(this.gl,this.debug,t,e,this.textureConfig)},sa.prototype.uploadPixelDataToTexture=function(t,e){this.throwIfDisposed(),Zi(this.gl,this.debug,t,e)},sa.prototype.uploadDenseMatrixToTexture=function(t,e,n,r){this.throwIfDisposed(),Qi(this.gl,this.debug,t,e,n,r,this.textureConfig)},sa.prototype.createFloat16PackedMatrixTexture=function(t,e){return this.throwIfDisposed(),Yi(this.gl,this.debug,t,e,this.textureConfig)},sa.prototype.createPackedMatrixTexture=function(t,e){return this.throwIfDisposed(),$i(this.gl,this.debug,t,e,this.textureConfig)},sa.prototype.deleteMatrixTexture=function(t){var e=this;this.throwIfDisposed(),this.outputTexture===t&&(Se(this.gl,this.debug,this.framebuffer),this.outputTexture=null),ie(this.gl,this.debug,function(){return e.gl.deleteTexture(t)})},sa.prototype.downloadByteEncodedFloatMatrixFromOutputTexture=function(t,e,n){var r=this;return this.downloadMatrixDriver(t,function(){return na(r.gl,r.debug,e,n,r.textureConfig)})},sa.prototype.downloadPackedMatrixFromBuffer=function(t,e,n,r,o,i){return ra(this.gl,t,0,0,0,o,i,this.textureConfig)},sa.prototype.downloadFloat32MatrixFromBuffer=function(t,e){return ea(this.gl,t,e)},sa.prototype.createBufferFromTexture=function(t,e,n){this.bindTextureToFrameBuffer(t);var r=ta(this.gl,this.debug,e,n,this.textureConfig);return this.unbindTextureToFrameBuffer(),r},sa.prototype.createAndWaitForFence=function(){var t=this.createFence(this.gl);return this.pollFence(t)},sa.prototype.createFence=function(t){var e,n,r=this;if(_().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 n=0<_().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")?(e=this.beginQuery(),this.endQuery(),function(){return r.isQueryAvailable(e,_().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))}):function(){return!0};return{query:e,isFencePassed:n}},sa.prototype.downloadMatrixFromPackedTexture=function(t,e,n){var r=this;return this.downloadMatrixDriver(t,function(){return oa(r.gl,r.debug,e,n)})},sa.prototype.createProgram=function(t){this.throwIfDisposed();var e=this.gl,n=le(e,this.debug,t),r=Vi(e,this.debug),o=de(e,this.debug);return ie(e,this.debug,function(){return e.attachShader(o,r)}),ie(e,this.debug,function(){return e.attachShader(o,n)}),ve(e,this.debug,o),this.debug&&me(e,this.debug,o),this.vertexAttrsAreBound||(this.setProgram(o),this.vertexAttrsAreBound=Ji(e,this.debug,this.program,this.vertexBuffer)),o},sa.prototype.deleteProgram=function(t){var e=this;this.throwIfDisposed(),t===this.program&&(this.program=null),null!=t&&ie(this.gl,this.debug,function(){return e.gl.deleteProgram(t)})},sa.prototype.setProgram=function(t){var e=this;this.throwIfDisposed(),this.program=t,null!=this.program&&this.debug&&me(this.gl,this.debug,this.program),ie(this.gl,this.debug,function(){return e.gl.useProgram(t)})},sa.prototype.getUniformLocation=function(t,e,n){return void 0===n&&(n=!0),this.throwIfDisposed(),n?_e(this.gl,this.debug,t,e):Ie(this.gl,t,e)},sa.prototype.getAttributeLocation=function(t,e){var n=this;return this.throwIfDisposed(),ie(this.gl,this.debug,function(){return n.gl.getAttribLocation(t,e)})},sa.prototype.getUniformLocationNoThrow=function(t,e){return this.throwIfDisposed(),this.gl.getUniformLocation(t,e)},sa.prototype.setInputMatrixTexture=function(t,e,n){this.throwIfDisposed(),this.throwIfNoProgram(),Re(this.gl,this.debug,this.program,t,e,n)},sa.prototype.setOutputMatrixTexture=function(t,e,n){this.setOutputMatrixTextureDriver(t,n,e)},sa.prototype.setOutputPackedMatrixTexture=function(t,e,n){this.throwIfDisposed();var r=re(e,n),o=r[0],i=r[1];this.setOutputMatrixTextureDriver(t,o,i)},sa.prototype.setOutputMatrixWriteRegion=function(t,e,n,r){this.setOutputMatrixWriteRegionDriver(n,t,r,e)},sa.prototype.setOutputPackedMatrixWriteRegion=function(t,e,n,r){throw new Error("setOutputPackedMatrixWriteRegion not implemented.")},sa.prototype.debugValidate=function(){null!=this.program&&me(this.gl,this.debug,this.program),De(this.gl)},sa.prototype.executeProgram=function(){this.throwIfDisposed(),this.throwIfNoProgram();var t=this.gl;this.debug&&this.debugValidate(),ie(t,this.debug,function(){return t.drawElements(t.TRIANGLES,6,t.UNSIGNED_SHORT,0)})},sa.prototype.blockUntilAllProgramsCompleted=function(){var t=this;this.throwIfDisposed(),ie(this.gl,this.debug,function(){return t.gl.finish()})},sa.prototype.getQueryTimerExtension=function(){return null==this.disjointQueryTimerExtension&&(this.disjointQueryTimerExtension=ue(this.gl,this.debug,2===_().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")?"EXT_disjoint_timer_query_webgl2":"EXT_disjoint_timer_query")),this.disjointQueryTimerExtension},sa.prototype.getQueryTimerExtensionWebGL2=function(){return this.getQueryTimerExtension()},sa.prototype.getQueryTimerExtensionWebGL1=function(){return this.getQueryTimerExtension()},sa.prototype.beginQuery=function(){if(2===_().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},sa.prototype.endQuery=function(){if(2!==_().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)}},sa.prototype.waitForQueryAndGetTime=function(n){return y(this,void 0,void 0,function(){var e=this;return R(this,function(t){switch(t.label){case 0:return[4,w(function(){return e.disposed||e.isQueryAvailable(n,_().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))})];case 1:return t.sent(),[2,this.getQueryTime(n,_().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))]}})})},sa.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},sa.prototype.isQueryAvailable=function(t,e){if(0===e)return!0;if(2!==e)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;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},sa.prototype.pollFence=function(e){var n=this;return new Promise(function(t){n.addItemToPoll(function(){return e.isFencePassed()},function(){return t()})})},sa.prototype.pollItems=function(){for(var t=function(t){for(var e=0;e<t.length&&t[e]();++e);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)},sa.prototype.addItemToPoll=function(t,e){var n=this;this.itemsToPoll.push({isDoneFn:t,resolveFn:e}),1<this.itemsToPoll.length||w(function(){return n.pollItems(),0===n.itemsToPoll.length})},sa.prototype.bindTextureToFrameBuffer=function(t){this.throwIfDisposed(),ke(this.gl,this.debug,t,this.framebuffer),this.debug&&De(this.gl)},sa.prototype.unbindTextureToFrameBuffer=function(){null!=this.outputTexture?(ke(this.gl,this.debug,this.outputTexture,this.framebuffer),this.debug&&De(this.gl)):Se(this.gl,this.debug,this.framebuffer)},sa.prototype.downloadMatrixDriver=function(t,e){this.bindTextureToFrameBuffer(t);var n=e();return this.unbindTextureToFrameBuffer(),n},sa.prototype.setOutputMatrixTextureDriver=function(t,e,n){this.throwIfDisposed();var r=this.gl;ke(r,this.debug,t,this.framebuffer),this.debug&&De(r),this.outputTexture=t,ie(r,this.debug,function(){return r.viewport(0,0,e,n)}),ie(r,this.debug,function(){return r.scissor(0,0,e,n)})},sa.prototype.setOutputMatrixWriteRegionDriver=function(t,e,n,r){var o=this;this.throwIfDisposed(),ie(this.gl,this.debug,function(){return o.gl.scissor(t,e,n,r)})},sa.prototype.throwIfDisposed=function(){if(this.disposed)throw new Error("Attempted to use disposed GPGPUContext.")},sa.prototype.throwIfNoProgram=function(){if(null==this.program)throw new Error("No GPU program is currently set.")},sa);function sa(t){this.outputTexture=null,this.program=null,this.disposed=!1,this.vertexAttrsAreBound=!1,this.itemsToPoll=[];var e=_().getNumber("WEBGL_VERSION");null!=t?Zt(e,this.gl=t):this.gl=te(e);var n="WEBGL_color_buffer_float";if(1===_().getNumber("WEBGL_VERSION")){if(this.textureFloatExtension=ue(this.gl,this.debug,"OES_texture_float"),Ve(this.gl,"OES_texture_half_float"))this.textureHalfFloatExtension=ue(this.gl,this.debug,"OES_texture_half_float");else if(_().get("WEBGL_FORCE_F16_TEXTURES"))throw new Error("GL context does not support half float textures, yet the environment flag WEBGL_FORCE_F16_TEXTURES is set to true.");if(this.colorBufferFloatExtension=this.gl.getExtension(n),Ve(this.gl,"EXT_color_buffer_half_float"))this.colorBufferHalfFloatExtension=ue(this.gl,this.debug,"EXT_color_buffer_half_float");else if(_().get("WEBGL_FORCE_F16_TEXTURES"))throw new Error("GL context does not support color renderable half floats, yet the environment flag WEBGL_FORCE_F16_TEXTURES is set to true.")}else if(n="EXT_color_buffer_float",Ve(this.gl,n))this.colorBufferFloatExtension=this.gl.getExtension(n);else{if(!Ve(this.gl,"EXT_color_buffer_half_float"))throw new Error("GL context does not support color renderable floats");this.colorBufferHalfFloatExtension=this.gl.getExtension("EXT_color_buffer_half_float")}this.vertexBuffer=Gi(this.gl,this.debug),this.indexBuffer=Hi(this.gl,this.debug),this.framebuffer=we(this.gl,this.debug),this.textureConfig=oe(this.gl,this.textureHalfFloatExtension)}function ua(t,s){if(t.length!==s.length)throw Error("Binary was compiled with "+t.length+" inputs, but was executed with "+s.length+" inputs");t.forEach(function(t,e){var n=t.logicalShape,r=s[e],o=r.shape;if(!D(n,o))throw Error("Binary was compiled with different shapes than the current args. Shapes "+n+" and "+o+" must match");if(!t.isUniform||!r.isUniform){var i=t.texShape,a=r.isUniform?null:r.texData.texShape;if(!D(i,a))throw Error("Binary was compiled with different texture shapes than the current args. Shape "+i+" and "+a+" must match")}})}var ca=function(t,e,n){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t;for(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=n.dataFormat,f=s.left,p=s.top,d=o*r,v=Lo(),m="channelsLast"===h,g=m?0:1,y=m?1:2,x="",b=0;b<=1;b++)for(var w=0;w<=1;w++)x+="\n          blockIndex = rc.y + "+w+";\n          pos = rc.x + "+b+";\n\n          if(blockIndex < "+t[1]+" && pos < "+t[0]+") {\n            offsetY = int(blockIndex / ("+u+")) * "+a+" - "+p+";\n            d0 = offsetY + "+l+" * (pos / "+d+");\n\n            if(d0 < "+e[g]+" && d0 >= 0) {\n\n              offsetX = int(mod(float(blockIndex), "+u+".) * "+i+". - "+f+".);\n              d1 = offsetX + "+c+" * (int(mod(float(pos), "+d+".) / "+o+".));\n\n              if(d1 < "+e[y]+" && d1 >= 0) {\n\n                ch = int(mod(float(pos), "+o+".));\n\n                if ("+m+") {\n                  innerDims = vec2(d1, ch);\n                  result["+(2*b+w)+"] = getChannel(\n                    getA(d0, int(innerDims.x),\n                    int(innerDims.y)), innerDims);\n                } else {\n                  innerDims = vec2(d0, d1);\n                  result["+(2*b+w)+"] = getChannel(\n                    getA(ch, int(innerDims.x),\n                    int(innerDims.y)), innerDims);\n                }\n              }\n            }\n          }\n        ";this.userCode="\n      void main() {\n        ivec2 rc = getOutputCoords();\n\n        vec4 result = vec4(0);\n\n        int blockIndex, pos, offsetY, d0, offsetX, d1, ch;\n        vec2 innerDims;\n\n        "+x+"\n\n        "+v.output+" = result;\n      }\n    "},la=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    "},ha=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    "},fa=function(t,e,n,r,o){this.variableNames=["x"],this.outputShape=[],this.packedInputs=!0,this.packedOutput=!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    "},pa=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    "},da=function(t){this.variableNames=["dy","maxPos"],this.outputShape=t.inShape;var e=t.strideDepth,n=t.strideHeight,r=t.strideWidth,o=t.dilationDepth,i=t.dilationHeight,a=t.dilationWidth,s=t.effectiveFilterDepth,u=t.effectiveFilterHeight,c=t.effectiveFilterWidth,l=s-1-t.padInfo.front,h=u-1-t.padInfo.top,f=c-1-t.padInfo.left,p=s*u*c-1;this.userCode="\n      const ivec3 pads = ivec3("+l+", "+h+", "+f+");\n\n      void main() {\n        ivec5 coords = getOutputCoords();\n        int batch = coords.x;\n        int ch = coords.u;\n\n        ivec3 dyCorner = ivec3(coords.y, coords.z, coords.w) - pads;\n        int dyDCorner = dyCorner.x;\n        int dyRCorner = dyCorner.y;\n        int dyCCorner = dyCorner.z;\n\n        // Convolve dy(?, ?, ?, ch) with pos mask(:, :, :, d) to get\n        // dx(xD, xR, xC, ch).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n\n        for (int wD = 0; wD < "+s+";\n           wD += "+o+") {\n          float dyD = float(dyDCorner + wD) / "+e+".0;\n\n          if (dyD < 0.0 || dyD >= "+t.outDepth+".0 || fract(dyD) > 0.0) {\n            continue;\n          }\n          int idyD = int(dyD);\n\n          for (int wR = 0; wR < "+u+";\n              wR += "+i+") {\n            float dyR = float(dyRCorner + wR) / "+n+".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            for (int wC = 0; wC < "+c+";\n                wC += "+a+") {\n              float dyC = float(dyCCorner + wC) / "+r+".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(batch, idyD, idyR, idyC, ch);\n              int maxPosValue = "+p+" -\n                  int(getMaxPos(batch, idyD, idyR, idyC, ch));\n\n              // Get the current value, check it against the value from the\n              // position matrix.\n              int curPosValue =\n                  wD * "+u+" * "+c+" +\n                  wR * "+c+" + wC;\n              float mask = float(maxPosValue == curPosValue ? 1.0 : 0.0);\n\n              dotProd += dyValue * mask;\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},va=function(t,e,n,r,o,i,a){void 0===n&&(n=!1),void 0===r&&(r=!1),void 0===o&&(o=!1),void 0===i&&(i=null),void 0===a&&(a=!1),this.variableNames=["matrixA","matrixB"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=e;var s=n?t[1]:t[2],u=Math.ceil(s/2),c=n?"i * 2, rc.y":"rc.y, i * 2",l=r?"rc.z, i * 2":"i * 2, rc.z",h=n?["a.xxyy","a.zzww"]:["a.xxzz","a.yyww"],f=r?["b.xzxz","b.ywyw"]:["b.xyxy","b.zwzw"],p="",d="";i&&(p=a?"vec4 activation(vec4 a) {\n          vec4 b = getPreluActivationWeightsAtOutCoords();\n          "+i+"\n        }":"vec4 activation(vec4 x) {\n          "+i+"\n        }",d="result = activation(result);");var v=o?"result += getBiasAtOutCoords();":"";o&&this.variableNames.push("bias"),a&&this.variableNames.push("preluActivationWeights"),this.userCode="\n      "+p+"\n\n      const float sharedDimension = "+u+".0;\n\n      vec4 dot2x2ARowBCol(ivec3 rc) {\n        vec4 result = vec4(0);\n        for (int i = 0; i < "+u+"; i++) {\n          vec4 a = getMatrixA(rc.x, "+c+");\n          vec4 b = getMatrixB(rc.x, "+l+");\n\n          // These swizzled products need to be separately added.\n          // See: https://github.com/tensorflow/tfjs/issues/1735\n          result += ("+h[0]+" * "+f[0]+");\n          result += ("+h[1]+" * "+f[1]+");\n        }\n        return result;\n      }\n\n      void main() {\n        ivec3 rc = getOutputCoords();\n        vec4 result = dot2x2ARowBCol(rc);\n\n        "+v+"\n\n        "+d+"\n\n        setOutput(result);\n      }\n    "},ma=(xa.prototype.getCustomSetupFunc=function(n){var r=this;return function(t,e){null==r.seedLoc&&(r.seedLoc=t.getUniformLocation(e,"seed")),t.gl.uniform1f(r.seedLoc,n)}},xa),ga=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    "},ya=function(t){this.variableNames=["A"],this.packedInputs=!1,this.packedOutput=!0;var e,n,r,o,i=(this.outputShape=t).length;if(0===i)this.userCode="\n        void main() {\n          setOutput(vec4(getA(), 0., 0., 0.));\n        }\n      ";else{var a=Bo("rc",i),s=qo(i),u=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}(i,t,a),c=function(t,e,n){if(1===t)return"";var r=a.slice(-2);return"\n    int r = "+r[0]+";\n    int c = "+r[1]+";\n    int rp1 = r + 1;\n    int cp1 = c + 1;\n\n    bool cEdge = cp1 >= "+e+";\n    bool rEdge = rp1 >= "+n+";\n  "}(i,t[t.length-1],t[t.length-2]),l=(n=a,r=(e=t).length,o=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}(r,n),1===r?"getA(rc),\n            rc + 1 >= "+e[0]+" ? 0. : getA(rc + 1),\n            0, 0":"getA("+o[0]+"),\n          cEdge ? 0. : getA("+o[1]+"),\n          rEdge ? 0. : getA("+o[2]+"),\n          rEdge || cEdge ? 0. : getA("+o[3]+")");this.userCode="\n        void main() {\n          "+s+" rc = getOutputCoords();\n\n          if("+u+") {\n            setOutput(vec4(0));\n          } else {\n            "+c+"\n\n            setOutput(vec4("+l+"));\n          }\n        }\n      "}};function xa(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    "}var ba=function(n,t,e){this.variableNames=["x"],this.outputShape=t.map(function(t,e){return t[0]+n[e]+t[1]});var r=n.length,o=qo(r),i=t.map(function(t){return t[0]}).join(","),a=t.map(function(t,e){return t[0]+n[e]}).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("+e+"));\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("+e+"));\n          } else {\n            setOutput(getX(outC - start));\n          }\n        }\n      "},wa=function(n,t,e){this.variableNames=["x"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t.map(function(t,e){return t[0]+n[e]+t[1]});for(var r=n.length,o=qo(r),i=t.map(function(t){return t[0]}).join(","),a=t.map(function(t,e){return t[0]+n[e]}).join(","),s=Bo("rc",r),u=Bo("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+") {"],f=1===r?"rc < start || rc >= end":"any(lessThan(rc, start)) || any(greaterThanEqual(rc, end))",p="",d=0,v=1===r?2:4;d<v;d++)p+="\n        "+h[d]+"\n        if ("+f+") {\n          result["+d+"] = float("+e+");\n        } else {\n          "+o+" source = rc - start;\n          result["+d+"] = getChannel(getX("+u.join()+"), "+l+");\n        }\n      ";p+=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        "+p+"\n        setOutput(result);\n      }\n    "},Ca=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 f="avg"===e,p="0.0";if(f||(p="-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 ("+f+") {\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 = "+p+";\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("+p+");\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    "}},Ea=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.strideDepth,i=t.strideHeight,a=t.strideWidth,s=t.dilationDepth,u=t.dilationHeight,c=t.dilationWidth,l=t.effectiveFilterDepth,h=t.effectiveFilterHeight,f=t.effectiveFilterWidth,p=t.padInfo.front,d=t.padInfo.top,v=t.padInfo.left;this.outputShape=t.outShape;var m="avg"===e,g="0.0";if(m||(g="-1.0 / 1e-20"),n)this.userCode="\n        const ivec3 strides =\n            ivec3("+o+", "+i+", "+a+");\n        const ivec3 pads = ivec3("+p+", "+d+", "+v+");\n\n        void main() {\n          ivec5 coords = getOutputCoords();\n          int batch = coords.x;\n          int ch = coords.u;\n\n          ivec3 xCorner = ivec3(coords.y, coords.z, coords.w) * strides - pads;\n          int xDCorner = xCorner.x;\n          int xRCorner = xCorner.y;\n          int xCCorner = xCorner.z;\n\n          // max/min x(?, ?, ?, ch) to get y(yD, yR, yC, ch).\n          // ? = to be determined\n          float minMaxValue = 0.0;\n          float minMaxValueFound = 0.0;\n          int minMaxPosition = 0;\n\n          for (int wD = 0; wD < "+l+";\n              wD += "+s+") {\n            int xD = xDCorner + wD;\n\n            if (xD < 0 || xD >= "+t.inDepth+") {\n              continue;\n            }\n\n            for (int wR = 0; wR < "+h+";\n                wR += "+u+") {\n              int xR = xRCorner + wR;\n\n              if (xR < 0 || xR >= "+t.inHeight+") {\n                continue;\n              }\n\n              for (int wC = 0; wC < "+f+";\n                  wC += "+c+") {\n                int xC = xCCorner + wC;\n\n                if (xC < 0 || xC >= "+t.inWidth+") {\n                  continue;\n                }\n\n                float value = getX(batch, xD, xR, xC, ch);\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 =\n                      wD * "+h+" * "+f+" +\n                      wR * "+f+" + wC;;\n                }\n              }\n            }\n          }\n          setOutput(float(minMaxPosition));\n        }\n      ";else{var y=e+"("+e+"("+e+"(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])";"avg"===e&&(y="avgValue / count");var x=4*Math.floor(r/4),b=r%4,w="\n      if ("+m+") {\n        avgValue += dot(values, ones);\n      } else {\n        minMaxValue = max(values, minMaxValue);\n      }\n    ";this.userCode="\n      const ivec3 strides =\n        ivec3("+o+", "+i+", "+a+");\n      const ivec3 pads = ivec3("+p+", "+d+", "+v+");\n      const float initializationValue = "+g+";\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 xD, int xR, int xC, int ch) {\n        if (xC < 0 || xC >= "+t.inWidth+") {\n          return initializationValue;\n        }\n        count += 1.0;\n        return getX(batch, xD, xR, xC, ch);\n      }\n\n      void main() {\n        ivec5 coords = getOutputCoords();\n        int batch = coords.x;\n        int ch = coords.u;\n\n        ivec3 xCorner = ivec3(coords.y, coords.z, coords.w) * strides - pads;\n        int xDCorner = xCorner.x;\n        int xRCorner = xCorner.y;\n        int xCCorner = xCorner.z;\n\n        // max/min x(?, ?, ?, d) to get y(yD, yR, yC, ch).\n        // ? = to be determined\n        vec4 minMaxValue = vec4("+g+");\n        float avgValue = 0.0;\n        count = 0.0;\n\n        for (int wD = 0; wD < "+l+";\n            wD += "+s+") {\n          int xD = xDCorner + wD;\n\n          if (xD < 0 || xD >= "+t.inDepth+") {\n            continue;\n          }\n\n          for (int wR = 0; wR < "+h+";\n            wR += "+u+") {\n            int xR = xRCorner + wR;\n\n            if (xR < 0 || xR >= "+t.inHeight+") {\n              continue;\n            }\n\n            for (int wC = 0; wC < "+x+"; wC += 4) {\n              int xC = xCCorner + wC * "+c+";\n\n              vec4 values = vec4(\n                getValue(batch, xD, xR, xC, ch),\n                getValue(batch, xD, xR, xC + "+c+", ch),\n                getValue(batch, xD, xR, xC + 2 * "+c+", ch),\n                getValue(batch, xD, xR, xC + 3 * "+c+", ch)\n              );\n\n              "+w+"\n            }\n\n            int xC = xCCorner + "+x+";\n            if ("+(1==b)+") {\n              vec4 values = vec4(\n                getValue(batch, xD, xR, xC, ch),\n                initializationValue,\n                initializationValue,\n                initializationValue\n              );\n\n              "+w+"\n            } else if ("+(2==b)+") {\n              vec4 values = vec4(\n                getValue(batch, xD, xR, xC, ch),\n                getValue(batch, xD, xR, xC + "+c+", ch),\n                initializationValue,\n                initializationValue\n              );\n\n              "+w+"\n            } else if ("+(3==b)+") {\n              vec4 values = vec4(\n                getValue(batch, xD, xR, xC, ch),\n                getValue(batch, xD, xR, xC + "+c+", ch),\n                getValue(batch, xD, xR, xC + 2 * "+c+", ch),\n                initializationValue\n              );\n\n              "+w+"\n            }\n          }\n          setOutput("+y+");\n        }\n      }\n    "}},_a=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    ",f="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      ",f="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      ",f="bvec4");var p="";0<o%n&&(p="\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        "+p+"\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          "+f+" values = "+f+"(\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          "+f+" values = "+f+"(\n            getValue(batch, inIdx),\n            initializationValue,\n            initializationValue,\n            initializationValue\n          );\n\n          "+h+"\n        } else if ("+(2==l)+") {\n          "+f+" values = "+f+"(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            initializationValue,\n            initializationValue\n          );\n\n          "+h+"\n        } else if ("+(3==l)+") {\n          "+f+" values = "+f+"(\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    "},Ia=function(t,e){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t;for(var n="",r=0;r<4;r++){var o="thisRC = rc;";r%2==1&&(o+="thisRC.z += 1;"),1<r&&(o+="thisRC.y += 1;"),n+="\n        "+o+"\n        "+(0<r?"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        "+(0<r?"}":"")+"\n      "}this.userCode="\n      \n    ivec3 inputCoordsFromReshapedOutCoords(int index) {\n      "+Wo(["r","c","d"],e)+"\n      return ivec3(r, c, d);\n    }\n  \n      "+zo(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    "},Ra=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&&1<s?o-1:o,n&&1<u?i-1:i],l=[n&&1<s?s-1:s,n&&1<u?u-1:u],h=c[0]/l[0],f=c[1]/l[1],p=1/h,d=1/f,v=2*Math.ceil(p)+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("+f+");\n\n        const float invHeightScale = float("+p+");\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    "},ka=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&&1<e?i-1:i,r&&1<n?a-1:a],c=[r&&1<e?e-1:e,r&&1<n?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    "},Sa=function(t,e,n,r){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!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&&1<e?i-1:i,r&&1<n?a-1:a],c=[r&&1<e?e-1:e,r&&1<n?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    "},Da=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&&1<s?o-1:o,n&&1<u?i-1:i],l=[n&&1<s?s-1:s,n&&1<u?u-1:u],h=c[0]/l[0],f=c[1]/l[1],p=1/h,d=1/f,v=2*Math.ceil(p)+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("+f+");\n\n        const float invHeightScale = float("+p+");\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    "},Aa=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&&1<e?i-1:i,r&&1<n?a-1:a],c=[r&&1<e?e-1:e,r&&1<n?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(r,o){this.variableNames=["x"];var t=r.length;if(4<t)throw new Error("WebGL backend: Reverse of rank-"+t+" tensor is not yet supported");if(this.outputShape=r,1!==t){var e=r.map(function(t,e){return n=e,-1!==o.indexOf(n)&&1!==r[n]?r[n]+" - coords["+n+"] - 1":"coords["+n+"]";var n}).join(","),n=qo(t);this.userCode="\n      void main() {\n        "+n+" coords = getOutputCoords();\n        setOutput(getX("+e+"));\n      }\n    "}else this.userCode="\n        void main() {\n          int coord = getOutputCoords();\n          setOutput(getX("+r[0]+" - coord - 1));\n        }\n      "},Fa=function(i,a){this.variableNames=["x"],this.packedInputs=!0,this.packedOutput=!0;var t=i.length;if(4<t)throw new Error("WebGL backend: Reverse of rank-"+t+" tensor is not yet supported");this.outputShape=i;var e,n,r,o=Bo("rc",t),s=o[t-1]+" + 1 < "+this.outputShape[t-1],u=o[t-2]+" + 1 < "+this.outputShape[t-2],c=qo(t);function l(o){var t=i.map(function(t,e){return n=e,r=o,-1!==a.indexOf(n)&&1!==i[n]?i[n]+" - "+r[n]+" - 1":""+r[n];var n,r});return"getChannel(getX("+t.join(",")+"), vec2("+t.slice(-2).join(",")+"))"}this.userCode=1===t?"\n        void main(){\n          int rc = getOutputCoords();\n          vec4 result = vec4(0.);\n          result.r = getChannel(getX("+i[0]+" - rc - 1),\n            "+i[0]+" - rc - 1);\n          if("+s+"){\n              result.g = getChannel(getX("+i[0]+" - (rc  + 1) - 1),\n                "+i[0]+" - (rc  + 1) - 1);\n          }\n          setOutput(result);\n        }\n      ":"\n        void main() {\n          "+c+" rc = getOutputCoords();\n          vec4 result = vec4(0.);\n          result.r = "+l(o.slice())+";\n          if("+s+"){\n            result.g = "+((r=o.slice())[t-1]="("+r[t-1]+" + 1)",l(r))+";\n          }\n          if("+u+") {\n            result.b = "+((n=o.slice())[t-2]="("+n[t-2]+" + 1)",l(n))+";\n            if("+s+") {\n              result.a = "+((e=o.slice())[t-1]="("+e[t-1]+" + 1)",e[t-2]="("+e[t-2]+" + 1)",l(e))+";\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=qo(o.length),u=qo(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 f="getUpdates("+h+")",p=1<e?"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 * "+p+";\n            }\n            if (flattenedIndex == coords[0]) {\n              sum += "+f+";\n              found = true;\n            }\n          }\n          setOutput(mix(getDefaultValue(), sum, float(found)));\n        }\n      "},Ma=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="";0<o%n&&(l="\n        if (inIdx < 0 || inIdx >= "+o+") {\n          return initializationValue;\n        }\n      ");var h="";0<o%n&&(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,4<n)throw Error("Where for rank "+n+" is not yet supported");if(1===n)r=o="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=qo(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    "},Pa=(La.prototype.getCustomSetupFunc=function(n){var r=this;if(n.length!==this.rank)throw Error("The rank ("+this.rank+") of the program must match the length of start ("+n.length+")");return function(t,e){null==r.startLoc&&(r.startLoc=t.getUniformLocationNoThrow(e,"start"),null==r.startLoc)||t.gl.uniform1iv(r.startLoc,n)}},La),Ba=["x","y","z","w","u","v"];function La(t){this.variableNames=["source"],this.outputShape=t,this.rank=t.length;var e,n=qo(this.rank),r="uniform int start["+this.rank+"];",o=function(t){if(1===t)return"sourceLoc";if(t<=6)return Ba.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."+Ba[e]+" = start["+e+"] + coords."+Ba[e]+";"}).join("\n")+"\n      ",this.userCode="\n      "+r+"\n      void main() {\n        "+e+"\n        setOutput(getSource("+o+"));\n      }\n    "}var Wa=(Ga.prototype.getCustomSetupFunc=function(n){var r=this;if(n.length!==this.rank)throw Error("The rank ("+this.rank+") of the program must match the length of start ("+n.length+")");return function(t,e){null==r.startLoc&&(r.startLoc=t.getUniformLocationNoThrow(e,"start"),null==r.startLoc)||t.gl.uniform1iv(r.startLoc,n)}},Ga),za=function(t,e,n){this.variableNames=["x"];var r=(this.outputShape=n).length,o=qo(n.length),i=qo(n.length),a="";if(1===r)a="coords * strides + begin";else{var s=0;a=n.map(function(t,e){return s++,1===n.length?"coords * strides["+e+"] + begin["+e+"]":"coords["+(s-1)+"] * strides["+e+"] + begin["+e+"]"}).join(",")}this.userCode="\n      "+o+" begin = "+o+"("+t+");\n      "+o+" strides = "+o+"("+e+");\n\n      void main() {\n        "+i+" coords = getOutputCoords();\n        setOutput(getX("+a+"));\n      }\n    "},Ua=(Va.prototype.acquireTexture=function(t,e,n){var r,o=Ha(e,n),i=qa(t,o,n);if(i in this.freeTextures||(this.freeTextures[i]=[]),i in this.usedTextures||(this.usedTextures[i]=[]),0<this.freeTextures[i].length){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===Kt.PACKED_2X2_FLOAT32?r=this.gpgpu.createPackedMatrixTexture(t[0],t[1]):o===Kt.PACKED_2X2_FLOAT16?r=this.gpgpu.createFloat16PackedMatrixTexture(t[0],t[1]):o===Kt.UNPACKED_FLOAT32?r=this.gpgpu.createFloat32MatrixTexture(t[0],t[1]):o===Kt.UNPACKED_FLOAT16?r=this.gpgpu.createFloat16MatrixTexture(t[0],t[1]):o===Kt.PACKED_4X1_UNSIGNED_BYTE&&(r=this.gpgpu.createUnsignedBytesMatrixTexture(t[0],t[1])),this.usedTextures[i].push(r),r},Va.prototype.releaseTexture=function(t,e,n,r){if(null!=this.freeTextures){var o=qa(e,Ha(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()}},Va.prototype.log=function(){if(this.logEnabled){var t=this.numFreeTextures+this.numUsedTextures;console.log("Free/Used",this.numFreeTextures+" / "+this.numUsedTextures,"("+t+")")}},Va.prototype.getNumUsedTextures=function(){return this.numUsedTextures},Va.prototype.getNumFreeTextures=function(){return this.numFreeTextures},Va.prototype.dispose=function(){var e=this;if(null!=this.freeTextures){for(var t in this.freeTextures)this.freeTextures[t].forEach(function(t){e.gpgpu.deleteMatrixTexture(t)});for(var t in this.usedTextures)this.usedTextures[t].forEach(function(t){e.gpgpu.deleteMatrixTexture(t)});this.freeTextures=null,this.usedTextures=null,this.numUsedTextures=0,this.numFreeTextures=0}},Va);function Va(t){this.gpgpu=t,this.numUsedTextures=0,this.numFreeTextures=0,this.freeTextures={},this.logEnabled=!1,this.usedTextures={}}function Ga(t){this.variableNames=["source"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t,this.rank=t.length;var e=qo(this.rank),n=Bo("coords",this.rank),r=Bo("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    "}function Ha(t,e){if(t===jt.UPLOAD)return Kt.PACKED_2X2_FLOAT32;if(t===jt.RENDER||null==t)return n=e,_().getBool("WEBGL_RENDER_FLOAT32_ENABLED")?n?Kt.PACKED_2X2_FLOAT32:Kt.UNPACKED_FLOAT32:n?Kt.PACKED_2X2_FLOAT16:Kt.UNPACKED_FLOAT16;var n;if(t===jt.DOWNLOAD||t===jt.PIXELS)return Kt.PACKED_4X1_UNSIGNED_BYTE;throw new Error("Unknown logical texture type "+t)}function qa(t,e,n){return t[0]+"_"+t[1]+"_"+e+"_"+n}var ja=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=qo(this.rank),i=function(t){var e=t.length;if(5<e)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    "},Ka=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=qo(this.rank),i=function(t){var e=t.length;if(6<e)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    "},Xa=function(t,e){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!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,6<this.rank)throw Error("Packed transpose for rank "+this.rank+" is not yet supported.");var o=qo(this.rank),i=Po("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    "},$a=1.7580993408473768,Ya=1.0507009873554805,Ja=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    "},Qa="if (isnan(x)) return x;",Za="return abs(x);",ts=Qa+"\n  return (x < 0.0) ? 0.0 : x;\n",es=Qa+"\n  return (x < 0.0) ? 0.0 : min(6.0, x);\n",ns="return (x >= 0.0) ? x : (exp(x) - 1.0);",rs="return -x;",os="return ceil(x);",is="return floor(x);",as="return exp(x);",ss="return exp(x) - 1.0;",us="return x;",cs="\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",ls="\n  vec4 result = min(x, vec4(6.)) * 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",hs="\n  vec4 result;\n\n  result.r = (x.r >= 0.0) ? x.r : (exp(x.r) - 1.0);\n  result.g = (x.g >= 0.0) ? x.g : (exp(x.g) - 1.0);\n  result.b = (x.b >= 0.0) ? x.b : (exp(x.b) - 1.0);\n  result.a = (x.a >= 0.0) ? x.a : (exp(x.a) - 1.0);\n\n  return result;\n",fs=function(t,e){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!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    "},ps=function(t){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!1;var e=(this.outputShape=t).length,n=Bo("rc",e),r=qo(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    "},ds={};function vs(t,e){if(void 0===e&&(e=!1),"linear"===t)return"return x;";if("relu"===t)return e?cs:ts;if("elu"===t)return e?hs:ns;if("relu6"===t)return e?ls:es;if("prelu"===t)return e?ii:ri;throw new Error("Activation "+t+" has not been implemented for the WebGL backend.")}var ms,gs=(t(ys,ms=eo),ys.prototype.numDataIds=function(){return this.texData.numDataIds()+(this.cpuBackend?this.cpuBackend.numDataIds():0)-this.pendingDeletes},ys.prototype.write=function(t,e,n){if(_().getBool("DEBUG")&&this.checkNumericalProblems(t),"complex64"===n&&null!=t)throw new Error("Cannot write to a complex64 dtype. Please use tf.complex(real, imag).");var r={};return this.texData.set(r,{shape:e,dtype:n,values:t,usage:jt.UPLOAD}),r},ys.prototype.move=function(t,e,n,r){if(_().getBool("DEBUG")&&this.checkNumericalProblems(e),"complex64"===r)throw new Error("Cannot write to a complex64 dtype. Please use tf.complex(real, imag).");this.texData.set(t,{shape:n,dtype:r,values:e,usage:jt.UPLOAD})},ys.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,s=e.isPacked;if(null!=i){var u;u=s?new fs(a,us):new Ja(a,us);var c=this.runWebGLProgram(u,[{dataId:t,shape:a,dtype:r}],r),l=this.readSync(c.dataId);return this.disposeData(c.dataId),l}if(null!=n)return this.convertAndCacheOnCPU(t);if("string"===r)return n;var h,f,p=null!=this.activeTimers;return p&&(h=J()),f="complex64"===r?Io(o.real.dataSync(),o.imag.dataSync()):this.getValuesFromTexture(t),p&&(this.downloadWaitMs+=J()-h),this.convertAndCacheOnCPU(t,f)},ys.prototype.read=function(E){return y(this,void 0,void 0,function(){var e,n,r,o,i,a,s,u,c,l,h,f,p,d,v,m,g,y,x,b,w,C;return R(this,function(t){switch(t.label){case 0:if(this.pendingRead.has(E))return e=this.pendingRead.get(E),[2,new Promise(function(t){return e.push(t)})];if(n=this.texData.get(E),r=n.values,o=n.shape,i=n.slice,a=n.dtype,s=n.complexTensors,u=n.isPacked,null!=i)return c=u?new fs(o,us):new Ja(o,us),l=this.runWebGLProgram(c,[{dataId:E,shape:o,dtype:a}],a),h=this.read(l.dataId),this.disposeData(l.dataId),[2,h];if(null!=r)return[2,this.convertAndCacheOnCPU(E)];if(!_().getBool("WEBGL_DOWNLOAD_FLOAT_ENABLED")&&2===_().getNumber("WEBGL_VERSION"))throw new Error("tensor.data() with WEBGL_DOWNLOAD_FLOAT_ENABLED=false and WEBGL_VERSION=2 not yet supported.");return f=null,"complex64"!==a&&_().get("WEBGL_BUFFER_SUPPORTED")&&(p=this.decode(E),d=this.texData.get(p.dataId),f=(C=this.gpgpu).createBufferFromTexture.apply(C,[d.texture].concat(ne(o)))),this.pendingRead.set(E,[]),"complex64"===a?[3,2]:[4,this.gpgpu.createAndWaitForFence()];case 1:t.sent(),t.label=2;case 2:return"complex64"!==a?[3,4]:[4,Promise.all([s.real.data(),s.imag.data()])];case 3:return m=t.sent(),g=m[0],y=m[1],v=Io(g,y),[3,5];case 4:v=null==f?this.getValuesFromTexture(E):(x=L(o),this.gpgpu.downloadFloat32MatrixFromBuffer(f,x)),t.label=5;case 5:return null!=p&&this.disposeData(p.dataId),b=this.convertAndCacheOnCPU(E,v),w=this.pendingRead.get(E),this.pendingRead.delete(E),w.forEach(function(t){return t(b)}),this.pendingDisposal.has(E)&&(this.pendingDisposal.delete(E),this.disposeData(E),this.pendingDeletes--),[2,b]}})})},ys.prototype.checkNumericalProblems=function(t){if(null!=t)for(var e=0;e<t.length;e++){var n=t[e];if(!ae(n)){if(_().getBool("WEBGL_RENDER_FLOAT32_CAPABLE"))throw Error("The value "+n+" cannot be represented with your current settings. Consider enabling float32 rendering: 'tf.env().set('WEBGL_RENDER_FLOAT32_ENABLED', true);'");throw Error("The value "+n+" cannot be represented on this device.")}}},ys.prototype.getValuesFromTexture=function(t){var e,n=this.texData.get(t),r=n.shape,o=n.dtype,i=n.isPacked,a=L(r);if(_().getBool("WEBGL_DOWNLOAD_FLOAT_ENABLED")){var s=this.decode(t),u=this.texData.get(s.dataId),c=(e=this.gpgpu).downloadMatrixFromPackedTexture.apply(e,[u.texture].concat(ne(r))).subarray(0,a);return this.disposeData(s.dataId),c}var l=_().getBool("WEBGL_PACK")&&!0===i,h=l?Oe(r):r,f=l?new Ni(h):new Fi(h),p=this.runWebGLProgram(f,[{shape:h,dtype:o,dataId:t}],"float32"),d=this.texData.get(p.dataId),v=this.gpgpu.downloadByteEncodedFloatMatrixFromOutputTexture(d.texture,d.texShape[0],d.texShape[1]).subarray(0,a);return this.disposeData(p.dataId),v},ys.prototype.time=function(u){return y(this,void 0,void 0,function(){var e,n,r,o,i,a,s;return R(this,function(t){switch(t.label){case 0:return e=this.activeTimers,r=!(n=[]),null==this.programTimersStack?(this.programTimersStack=n,r=!0):this.activeTimers.push(n),this.activeTimers=n,u(),o=d(this.activeTimers.map(function(t){return t.query})).filter(function(t){return null!=t}),i=d(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=t.sent(),s={uploadWaitMs:this.uploadWaitMs,downloadWaitMs:this.downloadWaitMs,kernelMs:f(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]}})})},ys.prototype.memory=function(){return{unreliable:!1,numBytesInGPU:this.numBytesInGPU}},ys.prototype.startTimer=function(){return 0<_().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")?this.gpgpu.beginQuery():{startMs:J(),endMs:null}},ys.prototype.endTimer=function(t){return 0<_().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")?this.gpgpu.endQuery():t.endMs=J(),t},ys.prototype.getQueryTime=function(n){return y(this,void 0,void 0,function(){var e;return R(this,function(t){return 0<_().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")?[2,this.gpgpu.waitForQueryAndGetTime(n)]:[2,(e=n).endMs-e.startMs]})})},ys.prototype.disposeData=function(t){if(!this.pendingDisposal.has(t)){if(this.pendingRead.has(t))return this.pendingDisposal.add(t),void this.pendingDeletes++;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)}}},ys.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);1<c?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},ys.prototype.getTexture=function(t){return this.uploadToGPU(t),this.texData.get(t).texture},ys.prototype.getDataInfo=function(t){return this.texData.get(t)},ys.prototype.getCPUBackend=function(){return _().getBool("WEBGL_CPU_FORWARD")?(null==this.cpuBackend&&(this.cpuBackend=Vt.findBackend("cpu")),this.cpuBackend):null},ys.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})},ys.prototype.getGPGPUContext=function(){return this.gpgpu},ys.prototype.complex=function(t,e){var n=this.makeOutput(t.shape,"complex64");return this.texData.get(n.dataId).complexTensors={real:Vt.keep(t.clone()),imag:Vt.keep(e.clone())},n},ys.prototype.real=function(t){return this.texData.get(t.dataId).complexTensors.real.clone()},ys.prototype.imag=function(t){return this.texData.get(t.dataId).complexTensors.imag.clone()},ys.prototype.slice=function(t,e,n){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.slice(t,e,n);if(0===L(n))return bn([],n,t.dtype);var r=this.texData.get(t.dataId).isPacked,o=jr(t.shape,e,n);if(!r&&o)return this.uploadToGPU(t.dataId),this.shallowSlice(t,e,n);var i=_().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new Wa(n):new Pa(n),a=i.getCustomSetupFunc(e);return this.compileAndRun(i,[t],null,a)},ys.prototype.shallowSlice=function(t,e,n){var r=this.texData.get(t.dataId),o=this.makeOutput(n,t.dtype),i=this.texData.get(o.dataId);Object.assign(i,r),i.shape=n,i.dtype=t.dtype;var a=Kr(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},ys.prototype.stridedSlice=function(t,e,n,r){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.stridedSlice(t,e,n,r);var o=Gr(e,n,r);if(o.some(function(t){return 0===t}))return bn([],o);var i=new za(e,r,o);return this.compileAndRun(i,[t])},ys.prototype.reverse=function(t,e){var n=_().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new Fa(t.shape,e):new Ta(t.shape,e);return this.compileAndRun(n,[t])},ys.prototype.concat=function(t,e){if("complex64"===t[0].dtype){var n=t.map(function(t){return yn(t)}),r=t.map(function(t){return xn(t)});return gn(this.concat(n,e),this.concat(r,e))}if(this.shouldExecuteOnCPU(t))return this.cpuBackend.concat(t,e);if(1===t.length)return t[0];if(t.length>_().getNumber("WEBGL_MAX_TEXTURES_IN_SHADER")){var o=Math.floor(t.length/2),i=this.concat(t.slice(0,o),e),a=this.concat(t.slice(o),e);return this.concat([i,a],e)}if(_().getBool("WEBGL_PACK_ARRAY_OPERATIONS")&&1<t[0].rank){var s=new hi(t.map(function(t){return t.shape}),e);return this.compileAndRun(s,t)}var u=vn(t.map(function(t){return t.shape}),e),c=t.map(function(t){return t.as2D(-1,L(t.shape.slice(e)))}),l=new li(c.map(function(t){return t.shape}));return this.compileAndRun(l,c).reshape(u)},ys.prototype.neg=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.neg(t);if(_().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,rs,t.dtype);var e=new Ja(t.shape,rs);return this.compileAndRun(e,[t])},ys.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)&&1e3<a){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=Tt(t.dtype,e.dtype),f=new va(t.shape,[s,o,i],n,r);return this.compileAndRun(f,[t,e],h)},ys.prototype.fusedBatchMatMul=function(t){var e=t.a,n=t.b,r=t.transposeA,o=t.transposeB,i=t.bias,a=t.activation,s=t.preluActivationWeights,u=r?e.shape[2]:e.shape[1],c=o?n.shape[1]:n.shape[2],l=e.shape[0],h=Tt(e.dtype,n.dtype),f=null!=i,p=null!=s,d=a?vs(a,!0):null,v=new va(e.shape,[l,u,c],r,o,f,d,p),m=[e,n];return i&&m.push(i),s&&m.push(s),this.compileAndRun(v,m,h)},ys.prototype.multiply=function(t,e){if("complex64"===t.dtype){var n=this.texData.get(t.dataId),r=this.texData.get(e.dataId),o=new Zo("return areal * breal - aimag * bimag;",t.shape,e.shape),i=new Zo("return areal * bimag + aimag * breal;",t.shape,e.shape),a=[this.makeComplexComponentTensorInfo(t,n.complexTensors.real),this.makeComplexComponentTensorInfo(t,n.complexTensors.imag),this.makeComplexComponentTensorInfo(e,r.complexTensors.real),this.makeComplexComponentTensorInfo(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(_().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,ni,t.dtype);var l=new oi(ni,t.shape,e.shape);return this.compileAndRun(l,[t,e],t.dtype)},ys.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)),_().getBool("WEBGL_PACK_NORMALIZATION")){var c=new Qo(t.shape,e.shape,n.shape,s,u,r);return this.compileAndRun(c,a)}var l=new Jo(t.shape,e.shape,n.shape,s,u,r);return this.compileAndRun(l,a)},ys.prototype.localResponseNormalization4D=function(t,e,n,r,o){var i=_().getBool("WEBGL_PACK_NORMALIZATION")?new fa(t.shape,e,n,r,o):new la(t.shape,e,n,r,o);return this.compileAndRun(i,[t])},ys.prototype.LRNGrad=function(t,e,n,r,o,i,a){var s=new ha(e.shape,r,o,i,a);return this.compileAndRun(s,[e,n,t])},ys.prototype.tile=function(t,e){if("string"===t.dtype){var n=this.readSync(t.dataId).map(function(t){return tt(t)});return Ao(or(t.shape,t.dtype,n),e)}var r=new ja(t.shape,e);return this.compileAndRun(r,[t])},ys.prototype.pad=function(t,e,n){var r=_().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new wa(t.shape,e,n):new ba(t.shape,e,n);return this.compileAndRun(r,[t])},ys.prototype.transpose=function(t,e){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.transpose(t,e);var n=_().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new Xa(t.shape,e):new Ka(t.shape,e);return this.compileAndRun(n,[t])},ys.prototype.gather=function(t,e,n){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.gather(t,e,n);var r=new Li(t.shape,e.size,n);return this.compileAndRun(r,[t,e])},ys.prototype.batchToSpaceND=function(t,e,n){P(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=Nr(t.shape,e,r),i=Mr(o.length,e.length),a=Or(t.shape,e,r),s=Pr(n,e.length),u=Br(a,n,e.length);return t.reshape(o).transpose(i).reshape(a).slice(s,u)},ys.prototype.spaceToBatchND=function(t,e,n){P(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=Nr(a.shape,e,r,!1),u=Mr(s.length,e.length,!1),c=Or(a.shape,e,r,!1);return a.reshape(s).transpose(u).reshape(c)},ys.prototype.reduce=function(t,e,n){var r=t.shape[0],o=t.shape[1],i=Wr(o),a=new _a({windowSize:i,inSize:o,batchSize:r},e),s=this.compileAndRun(a,[t],n);return 1===s.shape[1]?s:this.reduce(s,e,n)},ys.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=Wr(o),a=new Oo({windowSize:i,inSize:o,batchSize:r},e,null==n),s=[t];null!=n&&s.push(n);var u=this.compileAndRun(a,s,"int32");return 1===u.shape[1]?u:this.argReduce(t,e,u)},ys.prototype.argReducePacked=function(t,e,n){void 0===n&&(n=null);var r=null!=n?n.shape:t.shape,o=Wr(r[r.length-1]),i=new Xo(r,o,e,null==n),a=null==n?[t]:[t,n],s=this.compileAndRun(i,a,"int32");return s.rank===t.rank?this.argReducePacked(t,e,s):s},ys.prototype.sum=function(t,e){ln("sum",e,t.rank);var n=un(t.shape,e),r=n[0],o=L(n[1]),i=t.as2D(-1,o),a=Ft(t.dtype);return this.reduce(i,"sum",a).reshape(r)},ys.prototype.prod=function(t,e){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.prod(t,e);var n=un(t.shape,e),r=n[0],o=L(n[1]),i=t.as2D(-1,o),a=Ft(t.dtype);return this.reduce(i,"prod",a).reshape(r)},ys.prototype.unsortedSegmentSum=function(t,e,n){var r=0,o=hn([r],t.rank),i=t;null!=o&&(i=t.transpose(o),r=pn(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=L([i.shape[r]]),u=i.as2D(-1,s),c=Ft(t.dtype),l=this.segOpCompute(u,"unsortedSegmentSum",e,c,n).reshape(a);return null!=o&&(l=l.transpose(fn(o))),l},ys.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<=30?(n=t,r=!0):n=q(t,Math.floor(Math.sqrt(t)));!r;)e<n||n===t?r=!0:n=q(t,n+1);return n}(a,o),u=new Ma({windowSize:s,inSize:a,batchSize:i,numSegments:o},e),c=this.compileAndRun(u,[t,n],r);return c.shape[1]===o?c:(n=Mn(0,o).tile([a/s]),this.segOpCompute(c,e,n,r,o))},ys.prototype.argMinMaxReduce=function(t,e,n){var r=[e];if(ln("arg"+n.charAt(0).toUpperCase()+n.slice(1),r,t.rank),!_().getBool("WEBGL_PACK_REDUCE")||t.rank<=2){var o=un(t.shape,r),i=o[0],a=L(o[1]),s=t.as2D(-1,a);return this.argReduce(s,n).reshape(i)}return this.argReducePacked(t,n)},ys.prototype.argMin=function(t,e){return this.argMinMaxReduce(t,e,"min")},ys.prototype.argMax=function(t,e){return this.argMinMaxReduce(t,e,"max")},ys.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 Ri(t.shape,n,r);return this.compileAndRun(o,[t])},ys.prototype.equal=function(t,e){if(_().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(equal(a, b));\n","bool");var n=new oi("return float(a == b);",t.shape,e.shape);return this.compileAndRun(n,[t,e],"bool")},ys.prototype.notEqual=function(t,e){if(_().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(notEqual(a, b));\n","bool");var n=new oi("return float(a != b);",t.shape,e.shape);return this.compileAndRun(n,[t,e],"bool")},ys.prototype.less=function(t,e){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.less(t,e);if(_().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(lessThan(a, b));\n","bool");var n=new oi("return float(a < b);",t.shape,e.shape);return this.compileAndRun(n,[t,e],"bool")},ys.prototype.lessEqual=function(t,e){if(_().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(lessThanEqual(a, b));\n","bool");var n=new oi("return float(a <= b);",t.shape,e.shape);return this.compileAndRun(n,[t,e],"bool")},ys.prototype.greater=function(t,e){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.greater(t,e);if(_().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(greaterThan(a, b));\n","bool");var n=new oi("return float(a > b);",t.shape,e.shape);return this.compileAndRun(n,[t,e],"bool")},ys.prototype.greaterEqual=function(t,e){if(_().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(greaterThanEqual(a, b));\n","bool");var n=new oi("return float(a >= b);",t.shape,e.shape);return this.compileAndRun(n,[t,e],"bool")},ys.prototype.logicalNot=function(t){var e=new Ja(t.shape,"return float(!(x >= 1.0));");return this.compileAndRun(e,[t])},ys.prototype.logicalAnd=function(t,e){if(_().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 oi("return float(a >= 1.0 && b >= 1.0);",t.shape,e.shape);return this.compileAndRun(n,[t,e],"bool")},ys.prototype.logicalOr=function(t,e){if(_().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 oi("return float(a >= 1.0 || b >= 1.0);",t.shape,e.shape);return this.compileAndRun(n,[t,e],"bool")},ys.prototype.select=function(t,e,n){var r=new Oa(t.rank,e.shape,e.rank);return this.compileAndRun(r,[t,e,n],Tt(e.dtype,n.dtype))},ys.prototype.where=function(t){tn("tf.where() in webgl locks the UI thread. Call tf.whereAsync() instead");var e=t.dataSync();return Fo(t.shape,e)},ys.prototype.topk=function(t,e,n){return To(t.dataSync(),t.shape,t.dtype,e)},ys.prototype.min=function(t,e){ln("min",e,t.rank);var n=un(t.shape,e),r=n[0],o=L(n[1]),i=t.as2D(-1,o);return this.reduce(i,"min",i.dtype).reshape(r)},ys.prototype.minimum=function(t,e){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.minimum(t,e);var n=_().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new ai("\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 oi("\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])},ys.prototype.mod=function(t,e){var n=_().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new ai("\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 oi("if (b == 0.0) return NAN;\n  return mod(a, b);",t.shape,e.shape);return this.compileAndRun(n,[t,e])},ys.prototype.max=function(t,e){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.max(t,e);ln("max",e,t.rank);var n=un(t.shape,e),r=n[0],o=L(n[1]),i=t.as2D(-1,o);return this.reduce(i,"max",i.dtype).reshape(r)},ys.prototype.maximum=function(t,e){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.maximum(t,e);var n=_().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new ai("\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 oi("\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])},ys.prototype.all=function(t,e){ln("all",e,t.rank);var n=un(t.shape,e),r=n[0],o=L(n[1]),i=t.as2D(-1,o);return this.reduce(i,"all",i.dtype).reshape(r)},ys.prototype.any=function(t,e){ln("any",e,t.rank);var n=un(t.shape,e),r=n[0],o=L(n[1]),i=t.as2D(-1,o);return this.reduce(i,"any",i.dtype).reshape(r)},ys.prototype.squaredDifference=function(t,e){var n=_().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new ai("return (a - b) * (a - b);",t.shape,e.shape):new oi("return (a - b) * (a - b);",t.shape,e.shape);return this.compileAndRun(n,[t,e])},ys.prototype.realDivide=function(t,e){if(_().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(a.x == b.x) {\n    result.x = 1.;\n  }\n  if(a.y == b.y) {\n    result.y = 1.;\n  }\n  if(a.z == b.z) {\n    result.z = 1.;\n  }\n  if(a.w == b.w) {\n    result.w = 1.;\n  }\n\n  return result;\n","float32",!0);var n=new oi("\nif (a == b) {\n  return 1.0;\n};\nreturn a / b;",t.shape,e.shape);return this.compileAndRun(n,[t,e],"float32")},ys.prototype.floorDiv=function(t,e){if(_().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 oi("\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);return this.compileAndRun(n,[t,e],"int32")},ys.prototype.add=function(t,e){if("complex64"===t.dtype&&"complex64"===e.dtype)return this.complexSeparableBinaryOp(t,e,ti);if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.add(t,e);var n=Tt(t.dtype,e.dtype);if(_().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,ti,n);var r=new oi(ti,t.shape,e.shape);return this.compileAndRun(r,[t,e],n)},ys.prototype.packedUnaryOp=function(t,e,n){var r=new fs(t.shape,e);return this.compileAndRun(r,[t],n)},ys.prototype.packedBinaryOp=function(t,e,n,r,o){void 0===o&&(o=!1);var i=new ai(n,t.shape,e.shape,o);return this.compileAndRun(i,[t,e],r)},ys.prototype.complexSeparableBinaryOp=function(a,s,u){var c=this,t=this.texData.get(a.dataId),e=this.texData.get(s.dataId),n=[[t.complexTensors.real,e.complexTensors.real],[t.complexTensors.imag,e.complexTensors.imag]].map(function(t){var e=t[0],n=t[1],r=c.makeComplexComponentTensorInfo(a,e),o=c.makeComplexComponentTensorInfo(s,n),i=new oi(u,a.shape,s.shape);return c.compileAndRun(i,[r,o],Tt(e.dtype,n.dtype))}),r=n[0],o=n[1],i=this.complex(r,o);return r.dispose(),o.dispose(),i},ys.prototype.makeComplexComponentTensorInfo=function(t,e){return{dataId:e.dataId,dtype:e.dtype,shape:t.shape}},ys.prototype.addN=function(t){if(1===t.length)return t[0];if(t.length>_().get("WEBGL_MAX_TEXTURES_IN_SHADER")){var e=Math.floor(t.length/2),n=this.addN(t.slice(0,e)),r=this.addN(t.slice(e));return this.addN([n,r])}var o=t.map(function(t){return t.dtype}).reduce(function(t,e){return Tt(t,e)}),i=t.map(function(t){return t.shape}),a=_().getBool("WEBGL_PACK")?new Mo(t[0].shape,i):new No(t[0].shape,i);return this.compileAndRun(a,t,o)},ys.prototype.subtract=function(t,e){if("complex64"===t.dtype&&"complex64"===e.dtype)return this.complexSeparableBinaryOp(t,e,ei);if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.subtract(t,e);var n=Tt(t.dtype,e.dtype);if(_().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,ei,t.dtype);var r=new oi(ei,t.shape,e.shape);return this.compileAndRun(r,[t,e],n)},ys.prototype.pow=function(t,e){var n=_().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new ai("\n  // isModRound1 has 1 for components with round(mod(b, 2.0)) == 1, 0 otherwise.\n  vec4 isModRound1 = vec4(equal(round(mod(b, 2.0)), ivec4(1)));\n  vec4 multiplier = sign(a) * isModRound1 + (vec4(1.0) - isModRound1);\n  vec4 result = multiplier * pow(abs(a), b);\n\n  // Ensure that a^0 = 1, including 0^0 = 1 as this correspond to TF and JS\n  bvec4 isExpZero = equal(b, vec4(0.0));\n  result.r = isExpZero.r ? 1.0 : result.r;\n  result.g = isExpZero.g ? 1.0 : result.g;\n  result.b = isExpZero.b ? 1.0 : result.b;\n  result.a = isExpZero.a ? 1.0 : result.a;\n\n  vec4 isNaN = vec4(lessThan(a, vec4(0.0))) * vec4(lessThan(floor(b), b));\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 oi("\nif(a < 0.0 && floor(b) < b){\n  return NAN;\n}\nif (b == 0.0) {\n  return 1.0;\n}\nreturn (round(mod(b, 2.0)) != 1) ?\n    pow(abs(a), b) : sign(a) * pow(abs(a), b);\n",t.shape,e.shape),r=Tt(t.dtype,e.dtype);return this.compileAndRun(n,[t,e],r)},ys.prototype.ceil=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.ceil(t);if(_().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,os,t.dtype);var e=new Ja(t.shape,os);return this.compileAndRun(e,[t])},ys.prototype.floor=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.floor(t);if(_().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,is,t.dtype);var e=new Ja(t.shape,is);return this.compileAndRun(e,[t])},ys.prototype.sign=function(t){var e=new Ja(t.shape,"\n  if (isnan(x)) { return 0.0; }\n  return sign(x);\n");return this.compileAndRun(e,[t])},ys.prototype.isNaN=function(t){var e=new Ja(t.shape,"return float(isnan(x));");return this.compileAndRun(e,[t],"bool")},ys.prototype.isInf=function(t){var e=new Ja(t.shape,"return float(isinf(x));");return this.compileAndRun(e,[t],"bool")},ys.prototype.isFinite=function(t){var e=new Ja(t.shape,"return float(!isnan(x) && !isinf(x));");return this.compileAndRun(e,[t],"bool")},ys.prototype.round=function(t){var e=new Ja(t.shape,"\n  // OpenGL ES does not support round function.\n  // The algorithm is based on banker's rounding.\n  float base = floor(x);\n  if ((x - base) < 0.5) {\n    return floor(x);\n  } else if ((x - base) > 0.5) {\n    return ceil(x);\n  } else {\n    if (mod(base, 2.0) == 0.0) {\n      return base;\n    } else {\n      return base + 1.0;\n    }\n  }\n");return this.compileAndRun(e,[t])},ys.prototype.exp=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.exp(t);if(_().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,as,t.dtype);var e=new Ja(t.shape,as);return this.compileAndRun(e,[t])},ys.prototype.expm1=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.expm1(t);if(_().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,ss,t.dtype);var e=new Ja(t.shape,ss);return this.compileAndRun(e,[t])},ys.prototype.log=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.log(t);if(_().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,"\n  vec4 result = log(x);\n  vec4 isNaN = vec4(lessThan(x, vec4(0.0)));\n  result.r = isNaN.r == 1.0 ? 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",t.dtype);var e=new Ja(t.shape,"if (x < 0.0) return NAN;\n  return log(x);");return this.compileAndRun(e,[t])},ys.prototype.log1p=function(t){var e=new Ja(t.shape,"return log(1.0 + x);");return this.compileAndRun(e,[t])},ys.prototype.sqrt=function(t){var e=new Ja(t.shape,"return sqrt(x);");return this.compileAndRun(e,[t])},ys.prototype.rsqrt=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.rsqrt(t);var e=new Ja(t.shape,"return inversesqrt(x);");return this.compileAndRun(e,[t])},ys.prototype.reciprocal=function(t){var e=new Ja(t.shape,"return 1.0 / x;");return this.compileAndRun(e,[t])},ys.prototype.relu=function(t){var e;return e=_().getBool("WEBGL_PACK")?new fs(t.shape,cs):new Ja(t.shape,ts),this.compileAndRun(e,[t])},ys.prototype.relu6=function(t){var e;return e=_().getBool("WEBGL_PACK")?new fs(t.shape,ls):new Ja(t.shape,es),this.compileAndRun(e,[t])},ys.prototype.prelu=function(t,e){var n=_().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new ai(ii,t.shape,e.shape):new oi(ri,t.shape,e.shape);return this.compileAndRun(n,[t,e])},ys.prototype.elu=function(t){if(_().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,hs,t.dtype);var e=new Ja(t.shape,ns);return this.compileAndRun(e,[t])},ys.prototype.eluDer=function(t,e){var n=_().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new ai("\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 oi("return (b >= 1.0) ? a : a * (b + 1.0);",t.shape,e.shape);return this.compileAndRun(n,[t,e])},ys.prototype.selu=function(t){var e=new Ja(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])},ys.prototype.int=function(t){var e=new Ja(t.shape,"return float(int(x));");return this.compileAndRun(e,[t],"int32")},ys.prototype.clip=function(t,e,n){var r,o=(r=_().getBool("WEBGL_PACK_CLIP")?new ui(t.shape):new si(t.shape)).getCustomSetupFunc(e,n);return this.compileAndRun(r,[t],null,o)},ys.prototype.abs=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.abs(t);if(_().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,Za,t.dtype);var e=new Ja(t.shape,Za);return this.compileAndRun(e,[t])},ys.prototype.complexAbs=function(t){var e=this.texData.get(t.dataId),n=new ci(t.shape),r=[this.makeComplexComponentTensorInfo(t,e.complexTensors.real),this.makeComplexComponentTensorInfo(t,e.complexTensors.imag)];return this.compileAndRun(n,r)},ys.prototype.sigmoid=function(t){var e=new Ja(t.shape,"return 1.0 / (1.0 + exp(-1.0 * x));");return this.compileAndRun(e,[t])},ys.prototype.softplus=function(t){var e=new Ja(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])},ys.prototype.sin=function(t){var e=new Ja(t.shape,"if (isnan(x)) return x;\n  return sin(x);\n");return this.compileAndRun(e,[t])},ys.prototype.cos=function(t){var e=new Ja(t.shape,"if (isnan(x)) return x;\n  return cos(x);\n");return this.compileAndRun(e,[t])},ys.prototype.tan=function(t){var e=new Ja(t.shape,"return tan(x);");return this.compileAndRun(e,[t])},ys.prototype.asin=function(t){var e=new Ja(t.shape,"if (isnan(x)) return x;\n  if (abs(x) > 1.) {\n    return NAN;\n  }\n  return asin(x);\n");return this.compileAndRun(e,[t])},ys.prototype.acos=function(t){var e=new Ja(t.shape,"if (isnan(x)) return x;\n  if (abs(x) > 1.) {\n    return NAN;\n  }\n  return acos(x);\n");return this.compileAndRun(e,[t])},ys.prototype.atan=function(t){var e=new Ja(t.shape,"if (isnan(x)) return x;\n  return atan(x);\n");return this.compileAndRun(e,[t])},ys.prototype.atan2=function(t,e){var n=_().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new ai("\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 oi("\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])},ys.prototype.sinh=function(t){var e=new Ja(t.shape,"\n  float e2x = exp(x);\n  return (e2x - 1.0 / e2x) / 2.0;\n");return this.compileAndRun(e,[t])},ys.prototype.cosh=function(t){var e=new Ja(t.shape,"\n  float e2x = exp(-x);\n  return (e2x + 1.0 / e2x) / 2.0;\n");return this.compileAndRun(e,[t])},ys.prototype.tanh=function(t){var e=new Ja(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])},ys.prototype.asinh=function(t){var e=new Ja(t.shape,"if (isnan(x)) return x;return log(x + sqrt(x * x + 1.0));");return this.compileAndRun(e,[t])},ys.prototype.acosh=function(t){var e=new Ja(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])},ys.prototype.atanh=function(t){var e=new Ja(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])},ys.prototype.erf=function(t){var e=new Ja(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 sign = sign(x);\n  x = abs(x);\n  float t = 1.0 / (1.0 + p * x);\n  return sign * (1.0 - (((((a5*t + a4)*t) + a3)*t + a2)*t + a1)*t*exp(-x*x));\n');return this.compileAndRun(e,[t])},ys.prototype.step=function(t,e){var n,r=new Ja(t.shape,(void 0===(n=e)&&(n=0),Qa+"\n    return x > 0.0 ? 1.0 : float("+n+");\n  "));return this.compileAndRun(r,[t])},ys.prototype.conv2dByMatMul=function(t,e,n,r,o,i){var a=t.shape,s=this.texData.get(t.dataId),u=n.inChannels,c=a[0]*a[1]*a[2],l=n.outChannels,h="channelsLast"===n.dataFormat,f=(1==c||1===l)&&1e3<u,p=a[2]%2!=0&&!!s.isPacked;if(f||!_().getBool("WEBGL_LAZILY_UNPACK")||!_().getBool("WEBGL_PACK_BINARY_OPERATIONS")||!p){var d=h?a[0]*a[1]*a[2]:a[0]*a[2]*a[3],v=this.reshape(t,[1,d,n.inChannels]),m=this.reshape(e,[1,n.inChannels,n.outChannels]);return this.reshape(this.fusedBatchMatMul({a:v,b:m,transposeA:!1,transposeB:!1,bias:r,activation:o,preluActivationWeights:i}),n.outShape)}var g=h?a[0]*a[1]*(a[2]+1):a[0]*a[2]*(a[3]+1),y={dataId:t.dataId,shape:[1,g,n.inChannels],dtype:t.dtype},x=s.shape;s.shape=s.shape.slice(),s.shape[s.shape.length-2]++,P(Le(s.shape,y.shape),function(){return"packed reshape "+s.shape+" to "+y.shape+" isn't free"});var b=this.reshape(e,[1,n.inChannels,n.outChannels]),w=this.fusedBatchMatMul({a:y,b:b,transposeA:!1,transposeB:!1,bias:r,activation:o,preluActivationWeights:i}),C=this.texData.get(w.dataId);return P(C.isPacked,function(){return"batchMatMul result is expected to be packed"}),s.shape=x,C.shape=n.outShape,Vt.makeTensorFromDataId(w.dataId,n.outShape,w.dtype)},ys.prototype.conv2dWithIm2Row=function(t,e,n,r,o,i){var a=n.filterWidth,s=n.filterHeight,u=n.inChannels,c=n.outWidth,l=n.outHeight,h="channelsLast"===n.dataFormat,f=a*s*u,p=l*c,d=[f,p],v=t.squeeze([0]),m=e.reshape([1,f,-1]),g=new ca(d,v.shape,n),y=this.compileAndRun(g,[v]).reshape([1,d[0],d[1]]),x=null!=r,b=null!=i,w=o?vs(o,!0):null,C=new va(y.shape,[1,p,n.outChannels],!0,!1,x,w,b),E=[y,m];r&&E.push(r),b&&E.push(i);var _=this.compileAndRun(C,E);return h?_.reshape([1,l,c,n.outChannels]):_.reshape([1,n.outChannels,l,c])},ys.prototype.fusedConv2d=function(t){var e=t.input,n=t.filter,r=t.convInfo,o=t.bias,i=t.activation,a=t.preluActivationWeights;if(1===r.filterHeight&&1===r.filterWidth&&1===r.dilationHeight&&1===r.dilationWidth&&1===r.strideHeight&&1===r.strideWidth&&("SAME"===r.padInfo.type||"VALID"===r.padInfo.type))return this.conv2dByMatMul(e,n,r,o,i,a);if(_().getBool("WEBGL_CONV_IM2COL")&&1===e.shape[0])return this.conv2dWithIm2Row(e,n,r,o,i,a);var s=null!=o,u=null!=a,c=i?vs(i,!1):null,l=new wi(r,s,c,u),h=[e,n];return o&&h.push(o),a&&h.push(a),this.compileAndRun(l,h)},ys.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(_().getBool("WEBGL_CONV_IM2COL")&&1===t.shape[0])return this.conv2dWithIm2Row(t,e,n);var r=new wi(n);return this.compileAndRun(r,[t,e])},ys.prototype.conv2dDerInput=function(t,e,n){var r=new mi(n);return this.compileAndRun(r,[t,e])},ys.prototype.conv2dDerFilter=function(t,e,n){var r=new vi(n);return this.compileAndRun(r,[t,e])},ys.prototype.fusedDepthwiseConv2D=function(t){var e,n=t.input,r=t.filter,o=t.convInfo,i=t.bias,a=t.activation,s=t.preluActivationWeights,u=_().getBool("WEBGL_PACK_DEPTHWISECONV")&&o.strideWidth<=2&&o.outChannels/o.inChannels==1,c=a?vs(a,u):null,l=[n,r],h=null!=i,f=null!=s;return h&&l.push(i),f&&l.push(s),e=u?new _i(o,h,c,f):new Ei(o,h,c,f),this.compileAndRun(e,l)},ys.prototype.depthwiseConv2D=function(t,e,n){var r;return r=_().getBool("WEBGL_PACK_DEPTHWISECONV")&&n.strideWidth<=2&&n.outChannels/n.inChannels==1?new _i(n):new Ei(n),this.compileAndRun(r,[t,e])},ys.prototype.depthwiseConv2DDerInput=function(t,e,n){var r=new bi(n);return this.compileAndRun(r,[t,e])},ys.prototype.depthwiseConv2DDerFilter=function(t,e,n){var r=new xi(n);return this.compileAndRun(r,[t,e])},ys.prototype.conv3d=function(t,e,n){var r=new Ci(n);return this.compileAndRun(r,[t,e])},ys.prototype.conv3dDerInput=function(t,e,n){var r=new yi(n);return this.compileAndRun(r,[t,e])},ys.prototype.conv3dDerFilter=function(t,e,n){var r=new gi(n);return this.compileAndRun(r,[t,e])},ys.prototype.maxPool=function(t,e){var n=new Ca(e,"max",!1);return this.compileAndRun(n,[t])},ys.prototype.avgPool=function(t,e){var n=new Ca(e,"avg",!1);return this.compileAndRun(n,[t],"float32")},ys.prototype.maxPoolBackprop=function(t,e,n,r){var o=new Ca(r,"max",!0),i=this.compileAndRun(o,[e]),a=new pa(r),s=this.compileAndRun(a,[t,i],e.dtype);return i.dispose(),s},ys.prototype.avgPoolBackprop=function(t,e,n){var r=new $o(n);return this.compileAndRun(r,[t],e.dtype)},ys.prototype.cast=function(t,e){return wo(t,e,this)},ys.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++)u[a[e]=i]=this.slice(t,a,s).reshape(r);return u},ys.prototype.avgPool3d=function(t,e){var n=new Ea(e,"avg",!1);return this.compileAndRun(n,[t],"float32")},ys.prototype.avgPool3dBackprop=function(t,e,n){var r=new Yo(n);return this.compileAndRun(r,[t],e.dtype)},ys.prototype.maxPool3d=function(t,e){var n=new Ea(e,"max",!1);return this.compileAndRun(n,[t],"float32")},ys.prototype.maxPool3dBackprop=function(t,e,n,r){var o=new Ea(r,"max",!0),i=this.compileAndRun(o,[e]),a=new da(r),s=this.compileAndRun(a,[t,i],e.dtype);return i.dispose(),s},ys.prototype.reshape=function(t,e){var n=this.texData.get(t.dataId);if(!n.isPacked||Le(t.shape,e)||null!==n.texture&&Le(n.shape,e))return Co(t,e);var r=this.packedReshape(t,e);return Vt.makeTensorFromDataId(r.dataId,r.shape,r.dtype)},ys.prototype.resizeBilinear=function(t,e,n,r){var o=_().getBool("WEBGL_PACK_IMAGE_OPERATIONS")?new Sa(t.shape,e,n,r):new ka(t.shape,e,n,r);return this.compileAndRun(o,[t],"float32")},ys.prototype.resizeBilinearBackprop=function(t,e,n){var r=new Ra(t,e,n);return this.compileAndRun(r,[t])},ys.prototype.resizeNearestNeighbor=function(t,e,n,r){var o=new Aa(t.shape,e,n,r);return this.compileAndRun(o,[t])},ys.prototype.resizeNearestNeighborBackprop=function(t,e,n){var r=new Da(t,e,n);return this.compileAndRun(r,[t])},ys.prototype.multinomial=function(t,e,n,r){var o=e?t:Qr(t),i=o.shape[0],a=o.shape[1],s=new ma(i,a,n),u=s.getCustomSetupFunc(r);return this.compileAndRun(s,[o],"int32",u)},ys.prototype.oneHot=function(t,e,n,r){var o=new ga(t.size,e,n,r);return this.compileAndRun(o,[t])},ys.prototype.diag=function(t){var e=new Ti(t.size);return this.compileAndRun(e,[t])},ys.prototype.nonMaxSuppression=function(t,e,n,r,o){return tn("tf.nonMaxSuppression() in webgl locks the UI thread. Call tf.nonMaxSuppressionAsync() instead"),ko(t.dataSync(),e.dataSync(),n,r,o)},ys.prototype.cropAndResize=function(t,e,n,r,o,i){var a=new Ii(t.shape,e.shape,r,o,i);return this.compileAndRun(a,[t,e,n],"float32")},ys.prototype.depthToSpace=function(t,e,n){P(1<e,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 Ai("NHWC"===n?[r,s,u,c]:[r,c,s,u],e,n);return this.compileAndRun(l,[t])},ys.prototype.split=function(t,e,n){return Do(t,e,n)},ys.prototype.scatterND=function(t,e,n){var r=zr(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 Co(bn([]),n);var f=Cn(0),p=new Na(i,o,l.rank,h.rank,s,c);return this.compileAndRun(p,[h,l,f]).reshape(n)},ys.prototype.sparseToDense=function(t,e,n,r){var o=zr(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)},ys.prototype.fft=function(t){return this.fftImpl(t,!1)},ys.prototype.ifft=function(t){return this.fftImpl(t,!0)},ys.prototype.fftImpl=function(t,e){var n=this.texData.get(t.dataId),r=new Pi("return real * expR - imag * expI;",t.shape,e),o=new Pi("return real * expI + imag * expR;",t.shape,e),i=[this.makeComplexComponentTensorInfo(t,n.complexTensors.real),this.makeComplexComponentTensorInfo(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},ys.prototype.gatherND=function(t,e){var n=e.shape,r=n[n.length-1],o=Lr(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 Ui(r,u,[a,s]);return this.compileAndRun(h,[l,c]).reshape(i)},ys.prototype.fill=function(t,e,n){if("string"===(n=n||G(e))){var r=A(n,L(t));return r.fill(e),Vt.makeTensor(r,t,n,this)}var o=new Bi(t,e),i=o.getCustomSetupFunc(e);return this.compileAndRun(o,[],n,i)},ys.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)},ys.prototype.zerosLike=function(t){return this.fill(t.shape,"string"===t.dtype?"":0,t.dtype)},ys.prototype.linspace=function(t,e,n){return Eo(t,e,n)},ys.prototype.makeTensorInfo=function(t,e){var n=this.write(null,t,e);return this.texData.get(n).usage=null,{dataId:n,shape:t,dtype:e}},ys.prototype.makeOutput=function(t,e){var n=this.makeTensorInfo(t,e).dataId;return Vt.makeTensorFromDataId(n,t,e,this)},ys.prototype.unpackTensor=function(t){var e=new ps(t.shape);return this.runWebGLProgram(e,[t],t.dtype)},ys.prototype.packTensor=function(t){var e=new ya(t.shape);return this.runWebGLProgram(e,[t],t.dtype,null,!0)},ys.prototype.packedReshape=function(t,e){var n=[Ne(t.shape)].concat(Me(t.shape)),r={dtype:t.dtype,shape:n,dataId:t.dataId},o=[Ne(e)].concat(Me(e)),i=new Ia(o,n),a=this.runWebGLProgram(i,[r],t.dtype,null,!0);return{dataId:a.dataId,shape:e,dtype:a.dtype}},ys.prototype.decode=function(t){var e,n=this.texData.get(t),r=n.isPacked,o=n.shape,i=n.dtype,a=Oe(o);return e=r?new Di(a):new Si(a),{dtype:i,shape:o,dataId:this.runWebGLProgram(e,[{shape:a,dtype:i,dataId:t}],i,null,!0).dataId}},ys.prototype.runWebGLProgram=function(o,t,e,n,r){var i=this;void 0===r&&(r=!1);var a=this.makeTensorInfo(o.outputShape,e),s=this.texData.get(a.dataId);if(o.packedOutput&&(s.isPacked=!0),o.outPackingScheme===qt.DENSE){var u=ne(o.outputShape);s.texShape=u.map(function(t){return 2*t})}if(null!=o.outTexUsage&&(s.usage=o.outTexUsage),0===L(a.shape))return s.values=S(a.dtype,0),a;var c=[],l=t.map(function(t){if("complex64"===t.dtype)throw new Error("GPGPUProgram does not support complex64 input. For complex64 dtypes, please separate the program into real and imaginary parts.");var e=i.texData.get(t.dataId);if(null==e.texture){if(!o.packedInputs&&L(t.shape)<=_().getNumber("WEBGL_SIZE_UPLOAD_UNIFORM"))return{shape:t.shape,texData:null,isUniform:!0,uniformValues:e.values};o.packedInputs&&(e.isPacked=!0,e.shape=t.shape)}else if(!!e.isPacked!=!!o.packedInputs)t=e.isPacked?i.unpackTensor(t):i.packTensor(t),c.push(t),e=i.texData.get(t.dataId);else if(e.isPacked&&!Le(e.shape,t.shape)){var n=t,r=t.shape;t.shape=e.shape,t=i.packedReshape(t,r),c.push(t),e=i.texData.get(t.dataId),n.shape=r}return i.uploadToGPU(t.dataId),{shape:t.shape,texData:e,isUniform:!1}});this.uploadToGPU(a.dataId);var h,f={shape:a.shape,texData:s,isUniform:!1},p=function(t,e,n){var r="";l.concat(n).forEach(function(t){var e=null!=t.texData&&null!=t.texData.slice&&0<t.texData.slice.flatOffset,n=t.isUniform?"uniform":t.texData.texShape;r+=t.shape+"_"+n+"_"+e});var o=t.userCode;return t.constructor.name+"_"+r+"_"+o}(o,0,f),d=this.getAndSaveBinary(p,function(){return function(t,r,e,n){var o=r.userCode,i=e.map(function(t,e){var n={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&&0<t.texData.slice.flatOffset&&(n.flatOffset=t.texData.slice.flatOffset),{name:r.variableNames[e],shapeInfo:n}}),a=i.map(function(t){return t.shapeInfo}),s={logicalShape:n.shape,texShape:n.texData.texShape,isUniform:!1,isPacked:n.texData.isPacked,flatOffset:null},u=Vo(i,s,o,r.packedInputs),c=t.createProgram(u),l=null,h=t.getUniformLocation(c,"NAN",!1);1===_().getNumber("WEBGL_VERSION")&&(l=t.getUniformLocation(c,"INFINITY",!1));for(var f={},p=0;p<r.variableNames.length;p++){var d=r.variableNames[p];f[d]=t.getUniformLocation(c,d,!1),f["offset"+d]=t.getUniformLocation(c,"offset"+d,!1)}return{program:r,source:u,webGLProgram:c,uniformLocations:f,inShapeInfos:a,outShapeInfo:s,infLoc:l,nanLoc:h}}(i.gpgpu,o,l,f)}),v=null!=this.activeTimers;if(v&&(h=this.startTimer()),function(a,s,t,e,n){ua(s.inShapeInfos,t),ua([s.outShapeInfo],[e]);var r=e.texData.texture,o=e.texData.texShape;e.texData.isPacked?a.setOutputPackedMatrixTexture(r,o[0],o[1]):a.setOutputMatrixTexture(r,o[0],o[1]),a.setProgram(s.webGLProgram),1===_().getNumber("WEBGL_VERSION")&&null!==s.infLoc&&a.gl.uniform1f(s.infLoc,1/0),null!==s.nanLoc&&a.gl.uniform1f(s.nanLoc,NaN),t.forEach(function(t,e){var n=s.program.variableNames[e],r=s.uniformLocations[n],o=s.uniformLocations["offset"+n];if(null!=r)if(t.isUniform)if(L(t.shape)<2)a.gl.uniform1f(r,t.uniformValues[0]);else{var i=t.uniformValues;i instanceof Float32Array||(i=new Float32Array(i)),a.gl.uniform1fv(r,i)}else null!=t.texData.slice&&null!=o&&a.gl.uniform1i(o,t.texData.slice.flatOffset),a.setInputMatrixTexture(t.texData.texture,r,e)}),null!=n&&n(a,s.webGLProgram),a.executeProgram()}(this.gpgpu,d,l,f,n),c.forEach(function(t){return i.disposeData(t.dataId)}),v&&(h=this.endTimer(h),this.activeTimers.push({name:o.constructor.name,query:this.getQueryTime(h)})),_().getBool("WEBGL_LAZILY_UNPACK")||!s.isPacked||!1!==r)return a;var m=this.unpackTensor(a);return this.disposeData(a.dataId),m},ys.prototype.compileAndRun=function(t,e,n,r,o){void 0===o&&(o=!1),n=n||e[0].dtype;var i=this.runWebGLProgram(t,e,n,r,o);return Vt.makeTensorFromDataId(i.dataId,i.shape,i.dtype)},ys.prototype.getAndSaveBinary=function(t,e){return t in this.binaryCache||(this.binaryCache[t]=e()),this.binaryCache[t]},ys.prototype.getTextureManager=function(){return this.textureManager},ys.prototype.dispose=function(){this.disposed||(this.textureManager.dispose(),null!=this.canvas&&"undefined"!=typeof HTMLCanvasElement&&this.canvas instanceof HTMLCanvasElement?this.canvas.remove():this.canvas=null,this.gpgpuCreatedLocally&&(this.gpgpu.program=null,this.gpgpu.dispose()),this.disposed=!0)},ys.prototype.floatPrecision=function(){var n=this;return null==this.floatPrecisionValue&&(this.floatPrecisionValue=Je(function(){if(!_().get("WEBGL_RENDER_FLOAT32_ENABLED")){var t=_().getBool("DEBUG");_().set("DEBUG",!1);var e=n.abs(Cn(1e-8)).dataSync()[0];if(_().set("DEBUG",t),0<e)return 32}return 16})),this.floatPrecisionValue},ys.prototype.epsilon=function(){return 32===this.floatPrecision()?1e-7:1e-4},ys.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=J());var h=n.texShape;if(null==h&&(h=Pe(r,u),n.texShape=h),null!=i){var f=Oe(r),p=void 0,d=h[1],v=h[0],m=i instanceof Uint8Array;p=u?(d=(e=re(h[0],h[1]))[0],v=e[1],new Oi(f,[v,d],m)):new Mi(f,[v,d],m);var g=this.makeTensorInfo([v,d],o);this.texData.get(g.dataId).usage=m?jt.PIXELS:jt.UPLOAD,this.gpgpu.uploadDenseMatrixToTexture(this.getTexture(g.dataId),d,v,i);var y=this.runWebGLProgram(p,[g],o,null,!0),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+=J()-c)}else{var b=this.acquireTexture(h,s,o,u);n.texture=b}}},ys.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)throw new Error("Unknown dtype "+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}(e,r)),n.values},ys.prototype.acquireTexture=function(t,e,n,r){if(this.numBytesInGPU+=this.computeBytes(t,n),!this.warnedAboutMemory&&this.numBytesInGPU>1024*this.numMBBeforeWarning*1024){var o=(this.numBytesInGPU/1024/1024).toFixed(2);this.warnedAboutMemory=!0,console.warn("High memory usage in GPU: "+o+" MB, most likely due to a memory leak")}return this.textureManager.acquireTexture(t,e,r)},ys.prototype.computeBytes=function(t,e){return t[0]*t[1]*O(e)},ys);function ys(t){var e,n=ms.call(this)||this;if(n.pendingRead=new WeakMap,n.pendingDisposal=new WeakSet,n.dataRefCount=new WeakMap,n.numBytesInGPU=0,n.uploadWaitMs=0,n.downloadWaitMs=0,n.warnedAboutMemory=!1,n.pendingDeletes=0,n.disposed=!1,!_().getBool("HAS_WEBGL"))throw new Error("WebGL is not supported on this device");if(null==t){var r=te(_().getNumber("WEBGL_VERSION"));n.binaryCache=((e=_().getNumber("WEBGL_VERSION"))in ds||(ds[e]={}),ds[e]),n.gpgpu=new aa(r),n.canvas=r.canvas,n.gpgpuCreatedLocally=!0}else n.gpgpu=t,n.binaryCache={},n.gpgpuCreatedLocally=!1,n.canvas=t.gl.canvas;return n.textureManager=new Ua(n.gpgpu),n.numMBBeforeWarning=null==_().global.screen?1024:_().global.screen.height*_().global.screen.width*window.devicePixelRatio*600/1024/1024,n.texData=new to(n,Vt),n}Gt()&&Vt.registerBackend("webgl",function(){return new gs},2);var xs=mn({square_:function(t){var n=rn(t,"x","square"),e=[n];return Vt.runKernelFunc(function(t,e){return e([n]),t.square(n)},{x:n},function(t,e){var n=e[0];return{x:function(){return t.mul(n.toFloat().mul(2))}}},"Square",{},e,[])}}),bs=mn({abs_:function(t){var r=rn(t,"x","abs");return"complex64"===r.dtype?Vt.runKernelFunc(function(t){return t.complexAbs(r)},{$x:r}):Vt.runKernelFunc(function(t,e){var n=t.abs(r);return e([r]),n},{x:r},function(t,e){var n=e[0];return{x:function(){return t.mul(n.toFloat().step(-1))}}},"Abs")}}),ws=mn({acos_:function(t){var r=rn(t,"x","acos");return Vt.runKernelFunc(function(t,e){var n=t.acos(r);return e([r]),n},{$x:r},function(t,e){var n=e[0];return{$x:function(){return t.divStrict(Cn(1).sub(n.toFloat().square()).sqrt()).neg()}}})}}),Cs=mn({acosh_:function(t){var r=rn(t,"x","acosh");return Vt.runKernelFunc(function(t,e){var n=t.acosh(r);return e([r]),n},{$x:r},function(t,e){var n=e[0];return{$x:function(){return t.divStrict(n.toFloat().square().sub(1).sqrt())}}})}}),Es=mn({asin_:function(t){var r=rn(t,"x","asin");return Vt.runKernelFunc(function(t,e){var n=t.asin(r);return e([r]),n},{$x:r},function(t,e){var n=e[0];return{$x:function(){return t.divStrict(Cn(1).sub(n.toFloat().square()).sqrt())}}})}}),_s=mn({asinh_:function(t){var r=rn(t,"x","asinh");return Vt.runKernelFunc(function(t,e){var n=t.asinh(r);return e([r]),n},{$x:r},function(t,e){var n=e[0];return{$x:function(){return t.divStrict(Cn(1).add(n.toFloat().square()).sqrt())}}})}}),Is=mn({atan_:function(t){var r=rn(t,"x","atan");return Vt.runKernelFunc(function(t,e){var n=t.atan(r);return e([r]),n},{$x:r},function(t,e){var n=e[0];return{$x:function(){return t.div(n.toFloat().square().add(1))}}})}}),Rs=mn({atanh_:function(t){var r=rn(t,"x","atanh");return Vt.runKernelFunc(function(t,e){var n=t.atanh(r);return e([r]),n},{$x:r},function(t,e){var n=e[0];return{$x:function(){return t.div(Cn(1).sub(n.toFloat().square()))}}})}}),ks=mn({ceil_:function(t){var e=rn(t,"x","ceil");return Vt.runKernelFunc(function(t){return t.ceil(e)},{$x:e},function(t){return{$x:function(){return Pn(t)}}})}}),Ss=mn({clipByValue_:function(t,r,o){var i=rn(t,"x","clipByValue");P(r<=o,function(){return"Error in clip: min ("+r+") must be less than or equal to max ("+o+")."});var e=[i],n={min:r,max:o};return Vt.runKernelFunc(function(t,e){var n=t.clip(i,r,o);return e([i]),n},{x:i},function(t,e){var n=e[0];return{x:function(){return t.where(n.greaterEqual(r).logicalAnd(n.lessEqual(o)),Pn(t))}}},"ClipByValue",n,e)}}),Ds=mn({cos_:function(t){var r=rn(t,"x","cos");return Vt.runKernelFunc(function(t,e){var n=t.cos(r);return e([r]),n},{$x:r},function(t,e){var n=e[0];return{$x:function(){return n.toFloat().sin().neg().mul(t)}}})}}),As=mn({cosh_:function(t){var r=rn(t,"x","cosh");return Vt.runKernelFunc(function(t,e){var n=t.cosh(r);return e([r]),n},{$x:r},function(t,e){var n=e[0];return{$x:function(){return n.toFloat().sinh().mulStrict(t)}}})}}),Ts=mn({erf_:function(t){var r=rn(t,"x","erf");return P("int32"===r.dtype||"float32"===r.dtype,function(){return"Input dtype must be `int32` or `float32`."}),"int32"===r.dtype&&(r=r.toFloat()),Vt.runKernelFunc(function(t,e){var n=t.erf(r);return e([r]),n},{$x:r},function(t,e){var n=e[0];return{$x:function(){return t.mul(n.square().neg().exp().mul(2/Math.sqrt(Math.PI)))}}})}}),Fs=mn({exp_:function(t){var r=rn(t,"x","exp");return Vt.runKernelFunc(function(t,e){var n=t.exp(r);return e([n]),n},{$x:r},function(t,e){return{$x:function(){return t.mulStrict(e[0])}}})}}),Ns=mn({expm1_:function(t){var r=rn(t,"x","expm1");return Vt.runKernelFunc(function(t,e){var n=t.expm1(r);return e([r]),n},{$x:r},function(t,e){var n=e[0];return{$x:function(){return t.mul(n.exp())}}})}}),Ms=mn({floor_:function(t){var e=rn(t,"x","floor");return Vt.runKernelFunc(function(t){return t.floor(e)},{$x:e},function(t){return{$x:function(){return Pn(t)}}})}}),Os=mn({log_:function(t){var r=rn(t,"x","log");return Vt.runKernelFunc(function(t,e){var n=t.log(r);return e([r]),n},{$x:r},function(t,e){var n=e[0];return{$x:function(){return t.div(n.toFloat())}}})}}),Ps=mn({log1p_:function(t){var r=rn(t,"x","log1p");return Vt.runKernelFunc(function(t,e){var n=t.log1p(r);return e([r]),n},{$x:r},function(t,e){var n=e[0];return{$x:function(){return t.div(n.add(1))}}})}}),Bs=mn({logSigmoid_:function(t){var r=rn(t,"x","logSigmoid");return Vt.runKernelFunc(function(t,e){var n=t.softplus(r.neg()).neg();return e([r]),n},{$x:r},function(t,e){var n=e[0];return{$x:function(){return t.mul(n.neg().sigmoid())}}})}}),Ls=mn({neg_:function(t){var e=rn(t,"x","neg");return Vt.runKernelFunc(function(t){return t.neg(e)},{$x:e},function(t){return{$x:function(){return t.neg()}}})}}),Ws=mn({reciprocal_:function(t){var r=rn(t,"x","reciprocal");return Vt.runKernelFunc(function(t,e){var n=t.reciprocal(r);return e([r]),n},{$x:r},function(t,e){var n=e[0];return{$x:function(){return t.div(n.square().neg())}}})}}),zs=mn({round_:function(t){var e=rn(t,"x","round");return Vt.runKernelFunc(function(t){return t.round(e)},{$x:e},function(t){return{$x:function(){return Pn(t)}}})}}),Us=mn({rsqrt_:function(t){var r=rn(t,"x","rsqrt");return Vt.runKernelFunc(function(t,e){var n=t.rsqrt(r);return e([r]),n},{$x:r},function(t,e){var n=e[0];return{$x:function(){return t.div(n.pow(1.5).mul(2)).neg()}}})}}),Vs=mn({sigmoid_:function(t){var r=rn(t,"x","sigmoid");return Vt.runKernelFunc(function(t,e){var n=t.sigmoid(r);return e([n]),n},{x:r},function(t,e){var n=e[0];return{x:function(){return t.mul(n.mul(Cn(1).sub(n)))}}},"Sigmoid")}}),Gs=mn({sign_:function(t){var 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n=t.tanh(r);return e([n]),n},{$x:r},function(t,e){var n=e[0];return{$x:function(){return Cn(1).sub(n.square()).mulStrict(t)}}})}});function tu(t,e,n,r,o,i){var a,s,u=rn(t,"x","batchNorm"),c=rn(e,"mean","batchNorm"),l=rn(n,"variance","batchNorm");return null!=o&&(a=rn(o,"scale","batchNorm")),null!=r&&(s=rn(r,"offset","batchNorm")),P(2===u.rank,function(){return"Error in batchNorm3D: x must be rank 3 but got rank "+u.rank+"."}),P(2===c.rank||1===c.rank,function(){return"Error in batchNorm2D: mean must be rank 2 or rank 1 but got rank "+c.rank+"."}),P(2===l.rank||1===l.rank,function(){return"Error in batchNorm2D: variance must be rank 2 or rank 1 but got rank "+l.rank+"."}),null!=a&&P(2===a.rank||1===a.rank,function(){return"Error in batchNorm2D: scale must be rank 2 or rank 1 but got rank "+a.rank+"."}),null!=s&&P(2===s.rank||1===s.rank,function(){return"Error in batchNorm2D: offset must be rank 2 or rank 1 but got rank "+s.rank+"."}),ru(u,c,l,s,a,i)}function eu(t,e,n,r,o,i){var a,s,u=rn(t,"x","batchNorm"),c=rn(e,"mean","batchNorm"),l=rn(n,"variance","batchNorm");return null!=o&&(a=rn(o,"scale","batchNorm")),null!=r&&(s=rn(r,"offset","batchNorm")),P(3===u.rank,function(){return"Error in batchNorm3D: x must be rank 3 but got rank "+u.rank+"."}),P(3===c.rank||1===c.rank,function(){return"Error in batchNorm3D: mean must be rank 3 or rank 1 but got rank "+c.rank+"."}),P(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&&P(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&&P(3===s.rank||1===s.rank,function(){return"Error in batchNorm3D: offset must be rank 3 or rank 1 but got rank "+s.rank+"."}),ru(u,c,l,s,a,i)}function nu(t,e,n,r,o,i){var a,s,u=rn(t,"x","batchNorm"),c=rn(e,"mean","batchNorm"),l=rn(n,"variance","batchNorm");return null!=o&&(a=rn(o,"scale","batchNorm")),null!=r&&(s=rn(r,"offset","batchNorm")),P(4===u.rank,function(){return"Error in batchNorm4D: x must be rank 4 but got rank "+u.rank+"."}),P(4===c.rank||1===c.rank,function(){return"Error in batchNorm4D: mean must be rank 4 or rank 1 but got rank "+c.rank+"."}),P(4===l.rank||1===l.rank,function(){return"Error in batchNorm4D: variance must be rank 4 or rank 1 but got rank "+l.rank+"."}),null!=a&&P(4===a.rank||1===a.rank,function(){return"Error in batchNorm4D: scale must be rank 4 or rank 1 but got rank "+a.rank+"."}),null!=s&&P(4===s.rank||1===s.rank,function(){return"Error in batchNorm4D: offset must be rank 4 or rank 1 but got rank "+s.rank+"."}),ru(u,c,l,s,a,i)}function ru(t,e,n,r,o,v){null==v&&(v=.001);var i,a,m,s=rn(t,"x","batchNorm"),u=rn(e,"mean","batchNorm"),c=rn(n,"variance","batchNorm");null!=o&&(i=rn(o,"scale","batchNorm")),null!=r&&(a=rn(r,"offset","batchNorm")),P(u.rank===c.rank,function(){return"Batch normalization gradient requires 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1===o.rank?n.mul(Ar(p.as4D(1,1,1,o.shape[0]),c)).mul(s).reshape(r.shape):n.mul(p).mul(s).reshape(r.shape)},mean:function(){var t=p.mul(Cn(-1)).mul(f);return 1===o.rank&&(t=t.sum(u)),t.reshape(o.shape)},variance:function(){var t=d.mul(h).mul(f);return 1===o.rank&&(t=t.sum(u)),t.reshape(o.shape)},scale:function(){var t=h.mul(p),e=n.mul(t);return 1===o.rank&&(e=e.sum(u)),e.reshape(o.shape)},offset:function(){var t=n;return 1===o.rank&&(t=t.sum(u)),t.reshape(o.shape)}}},"BatchNormalization",{varianceEpsilon:v},l).reshape(s.shape)}function ou(t){return null==t?null:0===t.rank?t.as1D():1===t.rank?t:2===t.rank?t.as4D(1,1,t.shape[0],t.shape[1]):3===t.rank?t.as4D(1,t.shape[0],t.shape[1],t.shape[2]):t}function iu(){Ye("tf.batchNormalization() is going away. 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so(n.shape,r.shape),Vt.runKernelFunc(function(t){return t.logicalAnd(n,r)},{$a:n,$b:r})}}),mu=mn({logicalNot_:function(t){var e=rn(t,"x","logicalNot","bool");return Vt.runKernelFunc(function(t){return t.logicalNot(e)},{$x:e})}}),gu=mn({logicalOr_:function(t,e){var n=rn(t,"a","logicalOr","bool"),r=rn(e,"b","logicalOr","bool");return so(n.shape,r.shape),Vt.runKernelFunc(function(t){return t.logicalOr(n,r)},{$a:n,$b:r})}}),yu=mn({logicalXor_:function(t,e){var n=rn(t,"a","logicalXor","bool"),r=rn(e,"b","logicalXor","bool");return so(n.shape,r.shape),gu(t,e).logicalAnd(vu(t,e).logicalNot())}}),xu=mn({where_:function(t,e,n){var r=rn(e,"a","where"),o=rn(n,"b","where"),i=rn(t,"condition","where","bool");return b(r.shape,o.shape,"Error in where: "),1===i.rank?P(i.shape[0]===r.shape[0],function(){return"The first dimension of `a` must match the size of `condition`."}):b(i.shape,o.shape,"Error in where: "),Vt.runKernelFunc(function(t,e){var n=t.select(i,r,o);return e([i]),n},{$condition:i,$a:r,$b:o},function(t,e){var n=e[0];return{$condition:function(){return Pn(n).toFloat()},$a:function(){return t.mul(n.cast(t.dtype))},$b:function(){return t.mul(n.logicalNot().cast(t.dtype))}}})}}),bu=mn({add_:function(t,e){var n,r=rn(t,"a","add"),o=rn(e,"b","add");n=Nt(r,o),r=n[0],o=n[1];var i=so(r.shape,o.shape);return Vt.runKernelFunc(function(t){return t.add(r,o)},{a:r,b:o},function(n){return{a:function(){var t=n,e=ao(r.shape,i);return 0<e.length&&(t=t.sum(e)),t.reshape(r.shape)},b:function(){var t=n,e=ao(o.shape,i);return 0<e.length&&(t=t.sum(e)),t.reshape(o.shape)}}},"Add")}}),wu=mn({addN_:function(t){P(Array.isArray(t),function(){return"The argument passed to tf.addN() must be a list of tensors"}),P(1<=t.length,function(){return"Must pass at least one tensor to tf.addN(), but got "+t.length});var e=t.map(function(t,e){return rn(t,"tensors"+e,"addN")}),n=e[0];e.forEach(function(t){if(t.dtype!==n.dtype)throw new Error("All tensors passed to tf.addN() must 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0<n.length&&(e=e.sum(n)),e.reshape(i.shape)}}})}}),_u=mn({div_:function(t,e){var n,r=rn(t,"a","div"),o=rn(e,"b","div");if(n=Nt(r,o),r=n[0],o=n[1],"int32"===r.dtype&&"int32"===o.dtype)return ku(r,o);var a=so(r.shape,o.shape);return Vt.runKernelFunc(function(t,e){var n=t.realDivide(r,o);return e([r,o]),n},{a:r,b:o},function(r,t){var o=t[0],i=t[1];return{a:function(){var t=r.div(i.toFloat()),e=ao(o.shape,a);return 0<e.length?t.sum(e).reshape(o.shape):t},b:function(){var t=r.mul(o.toFloat()),e=ao(i.shape,a);0<e.length&&(t=t.sum(e).reshape(i.shape));var n=i.square();return t.div(n.toFloat()).neg()}}},"Div")}}),Iu=mn({divNoNan_:function(t,e){var n,r=rn(t,"a","div"),o=rn(e,"b","div");r=(n=Nt(r,o))[0],o=n[1];var i=_u(r,o),a=Pn(i),s=o.equal(a);return xu(s,a,i)}}),Ru=mn({divStrict_:function(t,e){var n=rn(t,"a","div"),r=rn(e,"b","div");return b(n.shape,r.shape,"Error in divideStrict: "),n.div(r)}}),ku=mn({floorDiv_:function(t,e){var n,r=rn(t,"a","floorDiv"),o=rn(e,"b","floorDiv");n=Nt(r,o),r=n[0],o=n[1];var a=so(r.shape,o.shape);return Vt.runKernelFunc(function(t,e){var n=t.floorDiv(r,o);return e([r,o]),n},{a:r,b:o},function(r,t){var o=t[0],i=t[1];return{a:function(){var t=r.div(i.toFloat()),e=ao(o.shape,a);return 0<e.length?t.sum(e).reshape(o.shape):t},b:function(){var t=r.mul(o.toFloat()),e=ao(i.shape,a);0<e.length&&(t=t.sum(e).reshape(i.shape));var n=i.square();return t.div(n.toFloat()).neg()}}},"FloorDiv")}}),Su=mn({maximum_:function(t,e){var n,r=rn(t,"a","maximum"),o=rn(e,"b","maximum");return n=Nt(r,o),r=n[0],o=n[1],"bool"===r.dtype&&(r=r.toInt(),o=o.toInt()),so(r.shape,o.shape),Vt.runKernelFunc(function(t,e){var n=t.maximum(r,o);return e([r,o]),n},{$a:r,$b:o},function(t,e){var n=e[0],r=e[1];return{$a:function(){return t.mul(n.greaterEqual(r).toFloat())},$b:function(){return t.mul(n.less(r).toFloat())}}})}}),Du=mn({maximumStrict_:function(t,e){var n=rn(t,"a","maximumStrict"),r=rn(e,"b","maximumStrict");return b(n.shape,r.shape,"Error in maximumStrict: "),n.maximum(r)}}),Au=mn({minimum_:function(t,e){var n,r=rn(t,"a","minimum"),o=rn(e,"b","minimum");return n=Nt(r,o),r=n[0],o=n[1],"bool"===r.dtype&&(r=r.toInt(),o=o.toInt()),so(r.shape,o.shape),Vt.runKernelFunc(function(t,e){var n=t.minimum(r,o);return e([r,o]),n},{$a:r,$b:o},function(t,e){var n=e[0],r=e[1];return{$a:function(){return t.mul(n.lessEqual(r).toFloat())},$b:function(){return t.mul(n.greater(r).toFloat())}}})}}),Tu=mn({minimumStrict_:function(t,e){var n=rn(t,"a","minimumStrict"),r=rn(e,"b","minimumStrict");return b(n.shape,r.shape,"Error in minimumStrict: "),n.minimum(r)}}),Fu=mn({mod_:function(t,e){var n,r=rn(t,"a","mod"),o=rn(e,"b","mod");n=Nt(r,o),r=n[0],o=n[1];var i=so(r.shape,o.shape);return Vt.runKernelFunc(function(t,e){var n=t.mod(r,o);return e([r,o]),n},{$a:r,$b:o},function(n,t){var r=t[0],o=t[1];return{$a:function(){var t=ao(r.shape,i);return 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r=rn(t,"base","pow"),o=rn(e,"exp","pow"),u=so(r.shape,o.shape);return t=r.cast(Tt(r.dtype,o.dtype)),e=o.cast(Tt(r.dtype,o.dtype)),Vt.runKernelFunc(function(t,e){var n=t.pow(r,o);return e([r,o,n]),n},{$base:r,$exp:o},function(o,t){var i=t[0],a=t[1],s=t[2];return{$base:function(){var t=a.toFloat(),e=o.mul(t.mul(i.pow(t.sub(Cn(1))))),n=ao(i.shape,u);return 0<n.length&&(e=e.sum(n)),e.reshape(i.shape)},$exp:function(){var t=i.greater(0),e=i.log().where(t,Pn(i)),n=o.mul(s.mul(e)),r=ao(a.shape,u);return 0<r.length&&(n=n.sum(r)),n.reshape(a.shape)}}})}}),Bu=mn({powStrict_:function(t,e){return b(t.shape,e.shape,"Error in powStrict: "),t.pow(e)}}),Lu=mn({squaredDifference_:function(t,e){var n,r=rn(t,"a","squaredDifference"),o=rn(e,"b","squaredDifference");return n=Nt(r,o),r=n[0],o=n[1],so(r.shape,o.shape),Vt.runKernelFunc(function(t,e){var n=t.squaredDifference(r,o);return e([r,o]),n},{$a:r,$b:o},function(t,e){var n=e[0],r=e[1],o=Cn(2);return{$a:function(){return t.mul(n.sub(r).mul(o))},$b:function(){return t.mul(r.sub(n).mul(o))}}})}}),Wu=mn({squaredDifferenceStrict_:function(t,e){var n=rn(t,"a","squaredDifferenceStrict"),r=rn(e,"b","squaredDifferenceStrict");return b(n.shape,r.shape,"Error in squaredDifferenceStrict: "),n.squaredDifference(r)}}),zu=mn({sub_:function(t,e){var n,r=rn(t,"a","sub"),o=rn(e,"b","sub");n=Nt(r,o),r=n[0],o=n[1];var i=so(r.shape,o.shape);return Vt.runKernelFunc(function(t){return t.subtract(r,o)},{a:r,b:o},function(n){return{a:function(){var t=n,e=ao(r.shape,i);return 0<e.length&&(t=t.sum(e)),t.reshape(r.shape)},b:function(){var t=n,e=ao(o.shape,i);return 0<e.length&&(t=t.sum(e)),t.neg().reshape(o.shape)}}},"Sub")}}),Uu=mn({subStrict_:function(t,e){var n=rn(t,"a","subStrict"),r=rn(e,"b","subStrict");return b(n.shape,r.shape,"Error in subStrict: "),n.sub(r)}}),Vu=mn({equal_:function(t,e){var n,r=rn(t,"a","equal"),o=rn(e,"b","equal");return n=Nt(r,o),r=n[0],o=n[1],so(r.shape,o.shape),Vt.runKernelFunc(function(t){return t.equal(r,o)},{$a:r,$b:o})}}),Gu=mn({equalStrict_:function(t,e){var n=rn(t,"a","equalStrict"),r=rn(e,"b","equalStrict");return b(n.shape,r.shape,"Error in equalStrict: "),n.equal(r)}}),Hu=mn({greater_:function(t,e){var n,r=rn(t,"a","greater"),o=rn(e,"b","greater");return n=Nt(r,o),r=n[0],o=n[1],so(r.shape,o.shape),Vt.runKernelFunc(function(t){return t.greater(r,o)},{$a:r,$b:o})}}),qu=mn({greaterEqual_:function(t,e){var n,r=rn(t,"a","greaterEqual"),o=rn(e,"b","greaterEqual");return n=Nt(r,o),r=n[0],o=n[1],so(r.shape,o.shape),Vt.runKernelFunc(function(t,e){var n=t.greaterEqual(r,o);return e([r,o]),n},{$a:r,$b:o},function(t,e){var n=e[0],r=e[1];return{$a:function(){return Pn(n)},$b:function(){return Pn(r)}}})}}),ju=mn({greaterEqualStrict_:function(t,e){var n=rn(t,"a","greaterEqualStrict"),r=rn(e,"b","greaterEqualStrict");return b(n.shape,r.shape,"Error in greaterEqualStrict: "),n.greaterEqual(r)}}),Ku=mn({greaterStrict_:function(t,e){var n=rn(t,"a","greaterStrict"),r=rn(e,"b","greaterStrict");return b(n.shape,r.shape,"Error in greaterStrict: "),n.greater(r)}}),Xu=mn({less_:function(t,e){var n,r=rn(t,"a","less"),o=rn(e,"b","less");return n=Nt(r,o),r=n[0],o=n[1],so(r.shape,o.shape),Vt.runKernelFunc(function(t){return t.less(r,o)},{$a:r,$b:o})}}),$u=mn({lessEqual_:function(t,e){var n,r=rn(t,"a","lessEqual"),o=rn(e,"b","lessEqual");return n=Nt(r,o),r=n[0],o=n[1],so(r.shape,o.shape),Vt.runKernelFunc(function(t){return t.lessEqual(r,o)},{$a:r,$b:o})}}),Yu=mn({lessEqualStrict_:function(t,e){var n=rn(t,"a","lessEqualStrict"),r=rn(e,"b","lessEqualStrict");return b(n.shape,r.shape,"Error in lessEqualStrict: "),n.lessEqual(r)}}),Ju=mn({lessStrict_:function(t,e){var n=rn(t,"a","lessStrict"),r=rn(e,"b","lessStrict");return b(n.shape,r.shape,"Error in lessStrict: "),n.less(r)}}),Qu=mn({notEqual_:function(t,e){var n,r=rn(t,"a","notEqual"),o=rn(e,"b","notEqual");return n=Nt(r,o),r=n[0],o=n[1],so(r.shape,o.shape),Vt.runKernelFunc(function(t){return t.notEqual(r,o)},{$a:r,$b:o})}}),Zu=mn({notEqualStrict_:function(t,e){var n=rn(t,"a","notEqualStrict"),r=rn(e,"b","notEqualStrict");return b(n.shape,r.shape,"Error in notEqualStrict: "),n.notEqual(r)}});function tc(t,e){for(var n=[],r=t;r<e;++r)n.push(r);return n}function ec(t){for(var e=[],n=0;n<t.length;++n)for(var r=0;r<t[n].length;++r)e.push(t[n][r]);return e}function nc(d,v,m){return y(this,void 0,void 0,function(){var e,n,r,o,i,a,s,u,c,l,h,f,p;return R(this,function(t){switch(t.label){case 0:for(e=rn(d,"tensor","boolMask"),n=rn(v,"mask","boolMask","bool"),r=null==m?0:m,o=n.rank,i=e.shape,P(0<o,function(){return"mask cannot be scalar"}),b(i.slice(r,r+o),n.shape,"mask's shape must match the first K dimensions of tensor's shape,"),a=1,s=r;s<r+o;s++)a*=i[s];return u=i.slice(0,r).concat([a],i.slice(r+o)),c=e.reshape(u),l=n.reshape([-1]),[4,au(l)];case 1:return h=t.sent(),f=h.squeeze([1]),p=rc(c,f,r),d!==e&&e.dispose(),v!==n&&n.dispose(),f.dispose(),c.dispose(),l.dispose(),h.dispose(),[2,p]}})})}var rc=mn({gather_:function(t,e,g){void 0===g&&(g=0);var y=rn(t,"x","gather"),r=rn(e,"indices","gather","int32");g=I(g,y.shape)[0];var n=function(t,e,n){for(var r=t.shape[n],o=[],i=1,a=1,s=0;s<n;s++)o.push(t.shape[s]),i*=t.shape[s];for(s=0;s<e.rank;s++)o.push(e.shape[s]);for(s=n+1;s<t.rank;s++)o.push(t.shape[s]),a*=t.shape[s];return{batchSize:i,sliceSize:a,dimSize:r,outputShape:o}}(y,r,g);return Vt.runKernelFunc(function(t,e){var n=t.gather(y,r.flatten(),g);return e([r]),n},{$x:y},function(v,t){var m=t[0];return{$x:function(){var t=y.shape,e=m.size,n=t.slice(0,g),r=n.length,o=t.slice(g,t.length).slice(1),i=o.length,a=tc(0,r),s=tc(r+1,r+1+i),u=ec([n,[e],o]),c=v.reshape(u),l=m.reshape([e]),h=ec([[r],a,s]),f=c.transpose(h),p=oc(f,l,y.shape[g]),d=fn(h);return p.transpose(d)}}}).reshape(n.outputShape)}}),oc=mn({unsortedSegmentSum_:function(t,e,r){var o=rn(t,"x","unsortedSegmentSum"),i=rn(e,"segmentIds","unsortedSegmentSum","int32");return P(B(r),function(){return"numSegments must be of dtype int"}),Vt.runKernelFunc(function(t,e){var n=t.unsortedSegmentSum(o,i,r);return e([i]),n},{$x:o},function(t,e){var n=e[0];return{$x:function(){return function(t,e){for(var n=Su(e,Pn(e)),r=rc(t,n),o=qu(e,Cn(0,"int32")),i=r.rank-o.rank,a=0;a<i;++a)o=pr(o,a+1);o=vu(o,An(r.shape,"bool"));var s=Pn(r);return xu(o,r,s)}(t,n)}}})}});function ic(t,e,r,o,i,a,s){void 0===a&&(a="NHWC"),P(t.length===e.rank,function(){return"Length of inShape ("+t.length+") and rank of dy ("+e.rank+") must match"});var n=t,u=e,c=!1;3===e.rank&&(c=!0,u=e.as4D(1,e.shape[0],e.shape[1],e.shape[2]),n=[1,t[0],t[1],t[2]]),P(4===n.length,function(){return"Error in conv2dDerInput: inShape must be length 4, but got length "+n.length+"."}),P(4===u.rank,function(){return"Error in conv2dDerInput: dy must be rank 4, but got rank "+u.rank}),P(4===r.rank,function(){return"Error in conv2dDerInput: filter must be rank 4, but got rank "+r.rank});var l="NHWC"===a?n[3]:n[1],h="NHWC"===a?u.shape[3]:u.shape[1];P(l===r.shape[2],function(){return"Error in conv2dDerInput: depth of input ("+l+") must match input depth for filter "+r.shape[2]+"."}),P(h===r.shape[3],function(){return"Error in conv2dDerInput: depth of output ("+h+") must match output depth for filter "+r.shape[3]+"."}),null!=s&&P(B(i),function(){return"Error in conv2dDerInput: pad must be an integer when using, dimRoundingMode "+s+" but got pad "+i+"."});var f=bo(a),p=lo(n,r.shape,o,1,i,s,!1,f),d=Vt.runKernelFunc(function(t,e){var n=t.conv2dDerInput(u,r,p);return e([r,u]),n},{dy4D:u,filter:r},function(t,e){var n=e[0],r=e[1];return{dy4D:function(){return cc(t,n,o,i,a,1,s)},filter:function(){return hc(t,r,n.shape,o,i,a,s)}}});return c?d.as3D(d.shape[1],d.shape[2],d.shape[3]):d}function ac(t){var e,n="number"==typeof(e=t)?[e,e,e]:2===e.length?[e[0],e[1],1]:e,r=n[0],o=n[1],i=n[2];return 1===r&&1===o&&1===i}function sc(t,e,n,r,o){P(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];P(5===i.length,function(){return"Error in conv3dDerInput: inShape must be length 5, but got length "+i.length+"."}),P(5===a.rank,function(){return"Error in conv3dDerInput: dy must be rank 5, but got rank "+a.rank}),P(5===n.rank,function(){return"Error in conv3dDerInput: filter must be rank 5, but got rank "+n.rank}),P(u===n.shape[3],function(){return"Error in conv3dDerInput: depth of input ("+u+") must match input depth for filter "+n.shape[3]+"."}),P(c===n.shape[4],function(){return"Error in conv3dDerInput: depth of output ("+c+") must match output depth for filter "+n.shape[4]+"."});var l=ho(i,n.shape,r,1,o),h=Vt.runKernelFunc(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}var uc=mn({conv1d_:function(t,e,n,r,o,i,a){void 0===o&&(o="NWC"),void 0===i&&(i=1);var s=rn(t,"x","conv1d"),u=rn(e,"filter","conv1d"),c=s,l=!1;2===s.rank&&(l=!0,c=s.as3D(1,s.shape[0],s.shape[1])),P(3===c.rank,function(){return"Error in conv1d: input must be rank 3, but got rank "+c.rank+"."}),P(3===u.rank,function(){return"Error in conv1d: filter must be rank 3, but got rank "+u.rank+"."}),null!=a&&P(B(r),function(){return"Error in conv1d: pad must be an integer when using, dimRoundingMode "+a+" but got pad "+r+"."}),P(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]+"."}),P(xo(n,i),function(){return"Error in conv1D: Either stride or dilation must be 1. Got stride "+n+" and dilation '"+i+"'"}),P("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]),f=c.as4D(c.shape[0],1,c.shape[1],c.shape[2]),p=cc(f,h,[1,n],r,"NHWC",[1,i],a);return l?p.as2D(p.shape[2],p.shape[3]):p.as3D(p.shape[0],p.shape[2],p.shape[3])}}),cc=mn({conv2d_:function(t,e,i,a,s,u,n){void 0===s&&(s="NHWC"),void 0===u&&(u=[1,1]);var r=rn(t,"x","conv2d"),o=rn(e,"filter","conv2d"),c=r,l=!1;3===r.rank&&(l=!0,c=r.as4D(1,r.shape[0],r.shape[1],r.shape[2])),P(4===c.rank,function(){return"Error in conv2d: input must be rank 4, but got rank "+c.rank+"."}),P(4===o.rank,function(){return"Error in conv2d: filter must be rank 4, but got rank "+o.rank+"."}),null!=n&&P(B(a),function(){return"Error in conv2d: pad must be an integer when using, dimRoundingMode "+n+" but got pad "+a+"."});var h="NHWC"===s?c.shape[3]:c.shape[1];P(h===o.shape[2],function(){return"Error in conv2d: depth of input ("+h+") must match input depth for filter "+o.shape[2]+"."}),P(xo(i,u),function(){return"Error in conv2D: Either strides or dilations must be 1. Got strides "+i+" and dilations '"+u+"'"});var f=bo(s),p=lo(c.shape,o.shape,i,u,a,n,!1,f),d=[o,c],v=Vt.runKernelFunc(function(t,e){var n=t.conv2d(c,o,p);return e([o,c]),n},{x:c,filter:o},function(t,e){var n=e,r=n[0],o=n[1];return P(yo(u),function(){return"Error in gradient of conv2D: dilation rates greater than 1 are not yet supported in gradients. Got dilations '"+u+"'"}),{x:function(){return fc(o.shape,t,r,i,a,s)},filter:function(){return hc(o,t,r.shape,i,a,s)}}},"Conv2D",p,d);return l?v.as3D(v.shape[1],v.shape[2],v.shape[3]):v}}),lc=mn({conv3d_:function(t,e,o,i,n,a){void 0===n&&(n="NDHWC"),void 0===a&&(a=[1,1,1]);var r,s=rn(t,"x","conv3d"),u=rn(e,"filter","conv3d"),c=s,l=!1;4===s.rank&&(l=!0,c=s.as5D(1,s.shape[0],s.shape[1],s.shape[2],s.shape[3])),P(5===c.rank,function(){return"Error in conv3d: input must be rank 5, but got rank "+c.rank+"."}),P(5===u.rank,function(){return"Error in conv3d: filter must be rank 5, but got rank "+u.rank+"."}),P(c.shape[4]===u.shape[3],function(){return"Error in conv3d: depth of input ("+c.shape[4]+") must match input depth for filter "+u.shape[3]+"."}),P((r=a,ac(o)||ac(r)),function(){return"Error in conv3D: Either strides or dilations must be 1. Got strides "+o+" and dilations '"+a+"'"}),P("NDHWC"===n,function(){return"Error in conv3d: got dataFormat of "+n+" but only NDHWC is currently supported."});var h=ho(c.shape,u.shape,o,a,i),f=Vt.runKernelFunc(function(t,e){var n=t.conv3d(c,u,h);return e([c,u]),n},{x:c,$filter:u},function(t,e){P(ac(a),function(){return"Error in gradient of conv3D: dilation rates greater than 1 are not yet supported in gradients. Got dilations '"+a+"'"});var n=e[0],r=e[1];return{x:function(){return sc(n.shape,t,r,o,i)},$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])),P(5===i.rank,function(){return"Error in conv3dDerFilter: input must be rank 5, but got shape "+i.shape+"."}),P(5===a.rank,function(){return"Error in conv3dDerFilter: dy must be rank 5, but got shape "+a.shape+"."}),P(5===n.length,function(){return"Error in conv3dDerFilter: filterShape must be length 5, but got "+n+"."}),P(i.shape[4]===n[3],function(){return"Error in conv3dDerFilter: depth of input "+i.shape[4]+") must match input depth in filter ("+n[3]+"."}),P(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=ho(i.shape,n,r,1,o);return Vt.runKernelFunc(function(t){return t.conv3dDerFilter(i,a,s)},{x5D:i,dy5D:a})}(n,t,r.shape,o,i)}}});return l?f.as4D(f.shape[1],f.shape[2],f.shape[3],f.shape[4]):f}}),hc=mn({conv2dDerFilter_:function(t,e,n,r,o,i,a){void 0===i&&(i="NHWC");var s=t;3===t.rank&&(s=t.as4D(1,t.shape[0],t.shape[1],t.shape[2]));var u=e;3===u.rank&&(u=e.as4D(1,e.shape[0],e.shape[1],e.shape[2])),P(4===s.rank,function(){return"Error in conv2dDerFilter: input must be rank 4, but got shape "+s.shape+"."}),P(4===u.rank,function(){return"Error in conv2dDerFilter: dy must be rank 4, but got shape "+u.shape+"."}),P(4===n.length,function(){return"Error in conv2dDerFilter: filterShape must be length 4, but got "+n+"."});var c="NHWC"===i?s.shape[3]:s.shape[1],l="NHWC"===i?u.shape[3]:u.shape[1];P(c===n[2],function(){return"Error in conv2dDerFilter: depth of input "+c+") must match input depth in filter ("+n[2]+"."}),P(l===n[3],function(){return"Error in conv2dDerFilter: depth of dy ("+l+") must match output depth for filter ("+n[3]+")."}),null!=a&&P(B(o),function(){return"Error in conv2dDerFilter: pad must be an integer when using, dimRoundingMode "+a+" but got pad "+o+"."});var h=bo(i),f=lo(s.shape,n,r,1,o,a,!1,h);return Vt.runKernelFunc(function(t){return t.conv2dDerFilter(s,u,f)},{x4D:s,dy4D:u})}}),fc=mn({conv2dDerInput_:ic}),pc=mn({depthwiseConv2d_:function(t,e,n,r,o,i,a){void 0===i&&(i=[1,1]);var s=rn(t,"x","depthwiseConv2d"),u=rn(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])),P(4===c.rank,function(){return"Error in depthwiseConv2d: input must be rank 4, but got rank "+c.rank+"."}),P(4===u.rank,function(){return"Error in depthwiseConv2d: filter must be rank 4, but got rank "+u.rank+"."}),P(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]),P(xo(n,i),function(){return"Error in depthwiseConv2d: Either strides or dilations must be 1. Got strides "+n+" and dilations '"+i+"'"}),null!=a&&P(B(r),function(){return"Error in depthwiseConv2d: pad must be an integer when using, dimRoundingMode "+a+" but got pad "+r+"."});var h=lo(c.shape,u.shape,n,i,r,a,!0),f=[c,u],p=Vt.runKernelFunc(function(t,e){var n=t.depthwiseConv2D(c,u,h);return e([c,u]),n},{x:c,filter:u},function(t,e){P(yo(i),function(){return"Error in gradient of depthwiseConv2d: dilation rates greater than 1 are not yet supported. Got dilations '"+i+"'"});var n=e[0],r=e[1];return{x:function(){return dc(n.shape,t,r,h)},filter:function(){return vc(n,t,r.shape,h)}}},"DepthwiseConv2dNative",h,f);return l?p.as3D(p.shape[1],p.shape[2],p.shape[3]):p}}),dc=mn({depthwiseConv2dDerInput_:function(t,e,n,r){var o=e,i=!1;3===e.rank&&(i=!0,o=e.as4D(1,e.shape[0],e.shape[1],e.shape[2]));var a=Vt.runKernelFunc(function(t){return t.depthwiseConv2DDerInput(o,n,r)},{dy4D:o});return i?a.as3D(a.shape[1],a.shape[2],a.shape[3]):a}}),vc=mn({depthwiseConv2dDerFilter_:function(t,e,n,r){var o=t;3===t.rank&&(o=t.as4D(1,t.shape[0],t.shape[1],t.shape[2]));var i=e;return 3===i.rank&&(i=e.as4D(1,e.shape[0],e.shape[1],e.shape[2])),Vt.runKernelFunc(function(t){return t.depthwiseConv2DDerFilter(o,i,r)},{x4D:o,dy4D:i})}}),mc=mn({separableConv2d_:function(t,e,n,r,o,i,a){void 0===i&&(i=[1,1]),void 0===a&&(a="NHWC");var s=rn(t,"x","separableConv2d"),u=rn(e,"depthwiseFilter","separableConv2d"),c=rn(n,"pointwiseFilter","separableConv2d"),l=s,h=!1;if(3===s.rank&&(h=!0,l=s.as4D(1,s.shape[0],s.shape[1],s.shape[2])),"NCHW"===a)throw new Error("separableConv2d currently does not support dataFormat NCHW; only NHWC is supported");P(4===l.rank,function(){return"Error in separableConv2d: input must be rank 4, but got rank "+l.rank+"."}),P(4===u.rank,function(){return"Error in separableConv2d: depthwise filter must be rank 4, but got rank "+u.rank+"."}),P(4===c.rank,function(){return"Error in separableConv2d: pointwise filter must be rank 4, but got rank "+u.rank+"."}),P(1===c.shape[0],function(){return"Error in separableConv2d: the first dimension of pointwise filter  must be 1, but got "+c.shape[0]+"."}),P(1===c.shape[1],function(){return"Error in separableConv2d: the second dimension of pointwise filter must be 1, but got "+c.shape[1]+"."});var f=u.shape[2],p=u.shape[3];P(c.shape[2]===f*p,function(){return"Error in separableConv2d: the third dimension of pointwise filter must be "+f*p+", but got "+c.shape[2]+"."});var d=pc(l,u,r,o,a,i),v=cc(d,c,1,"valid",a);return h?v.as3D(v.shape[1],v.shape[2],v.shape[3]):v}}),gc=mn({conv2dTranspose_:function(t,e,n,r,o,i){return ic(n,rn(t,"x","conv2dTranspose"),rn(e,"filter","conv2dTranspose"),r,o,"NHWC",i)}}),yc=mn({conv3dTranspose_:function(t,e,n,r,o){return sc(n,rn(t,"x","conv3dTranspose"),rn(e,"filter","conv3dTranspose"),r,o)}}),xc=mn({matMul_:function(t,e,i,a){var n;void 0===i&&(i=!1),void 0===a&&(a=!1);var r=rn(t,"a","matMul"),o=rn(e,"b","matMul");n=Nt(r,o),r=n[0],o=n[1];var s=i?r.shape[r.rank-2]:r.shape[r.rank-1],u=a?o.shape[o.rank-1]:o.shape[o.rank-2],c=i?r.shape[r.rank-1]:r.shape[r.rank-2],l=a?o.shape[o.rank-2]:o.shape[o.rank-1],h=r.shape.slice(0,-2),f=o.shape.slice(0,-2),p=L(h),d=L(f);P(2<=r.rank&&2<=o.rank&&r.rank===o.rank,function(){return"Error in matMul: inputs must have the same rank of at least 2, got ranks "+r.rank+" and "+o.rank+"."}),P(D(h,f),function(){return"Error in matMul: outer dimensions ("+h+") and ("+f+") of Tensors with shapes "+r.shape+" and "+o.shape+" must match."}),P(s===u,function(){return"Error in matMul: inner shapes ("+s+") and ("+u+") of Tensors with shapes "+r.shape+" and "+o.shape+" and transposeA="+i+" and transposeB="+a+" must match."});var v=r.shape.slice(0,-2).concat([c,l]),m=i?r.as3D(p,s,c):r.as3D(p,c,s),g=a?o.as3D(d,l,u):o.as3D(d,u,l),y={transposeA:i,transposeB:a};return Vt.runKernelFunc(function(t,e){var n=t.batchMatMul(m,g,i,a);return e([m,g]),n},{a:m,b:g},function(t,e){var n=e,r=n[0],o=n[1];return i||a?!i&&a?{a:function(){return t.matMul(o,!1,!1)},b:function(){return t.matMul(r,!0,!1)}}:i&&!a?{a:function(){return o.matMul(t,!1,!0)},b:function(){return r.matMul(t,!1,!1)}}:{a:function(){return o.matMul(t,!0,!0)},b:function(){return t.matMul(r,!0,!0)}}:{a:function(){return t.matMul(o,!1,!0)},b:function(){return r.matMul(t,!0,!1)}}},"BatchMatMul",y).reshape(v)}}),bc=mn({dot_:function(t,e){var n=rn(t,"t1","dot"),r=rn(e,"t2","dot");P(!(1!==n.rank&&2!==n.rank||1!==r.rank&&2!==r.rank),function(){return"Error in dot: inputs must all be rank 1 or 2, but got ranks "+n.rank+" and "+r.rank+"."});var o=1===n.rank?n.size:n.shape[1],i=1===r.rank?r.size:r.shape[0];return P(o===i,function(){return"Error in dot: inner dimensions of inputs must match, but got "+o+" and "+i+"."}),1===n.rank&&1===r.rank?n.as2D(1,-1).matMul(r.as2D(-1,1)).asScalar():1===n.rank&&2===r.rank?n.as2D(1,-1).matMul(r.as2D(r.shape[0],r.shape[1])).as1D():2===n.rank&&1===r.rank?n.matMul(r.as2D(-1,1)).as1D():n.matMul(r.as2D(r.shape[0],r.shape[1]))}}),wc=mn({outerProduct_:function(t,e){var n=rn(t,"v1","outerProduct"),r=rn(e,"v2","outerProduct");return P(1===n.rank&&1===r.rank,function(){return"Error in outerProduct: inputs must be rank 1, but got ranks "+n.rank+" and "+r.rank+"."}),n.as2D(-1,1).matMul(r.as2D(1,-1))}}),Cc=mn({reverse_:function(t,e){var n=rn(t,"x","reverse");if(0===n.rank)return n.clone();var r=I(e,n.shape);return Vt.runKernelFunc(function(t){return t.reverse(n,r)},{$x:n},function(t){return{$x:function(){return t.reverse(r)}}}).reshapeAs(n)}}),Ec=mn({reverse1d_:function(t){var e=rn(t,"x","reverse");return P(1===e.rank,function(){return"Error in reverse1D: x must be rank 1 but got rank "+e.rank+"."}),Cc(e,0)}}),_c=mn({reverse2d_:function(t,e){var n=rn(t,"x","reverse");return P(2===n.rank,function(){return"Error in reverse2D: x must be rank 2 but got rank "+n.rank+"."}),Cc(n,e)}}),Ic=mn({reverse3d_:function(t,e){var n=rn(t,"x","reverse");return P(3===n.rank,function(){return"Error in reverse3D: x must be rank 3 but got rank "+n.rank+"."}),Cc(n,e)}}),Rc=mn({reverse4d_:function(t,e){var n=rn(t,"x","reverse");return P(4===n.rank,function(){return"Error in reverse4D: x must be rank 4 but got rank "+n.rank+"."}),Cc(n,e)}});function kc(t,r,o,i,a,e){var n=rn(t,"x","maxPool"),s=n,u=!1;3===n.rank&&(u=!0,s=n.as4D(1,n.shape[0],n.shape[1],n.shape[2])),null==i&&(i=[1,1]),P(4===s.rank,function(){return"Error in maxPool: input must be rank 4 but got rank "+s.rank+"."}),P(xo(o,i),function(){return"Error in maxPool: Either strides or dilations must be 1. Got strides "+o+" and dilations '"+i+"'"}),null!=e&&P(B(a),function(){return"Error in maxPool: pad must be an integer when using, dimRoundingMode "+e+" but got pad "+a+"."});var c=uo(s.shape,r,o,i,a,e);if(1===c.filterWidth&&1===c.filterHeight&&D(c.inShape,c.outShape))return n.clone();var l=[s],h=Vt.runKernelFunc(function(t,e){var n=t.maxPool(s,c);return e([s,n]),n},{x:s},function(h,t){var e=t[0],n=t[1];return{x:function(){return function(t,e,n,r,o,i,a){var s=rn(h,"dy","maxPoolBackprop"),u=rn(e,"input","maxPoolBackprop"),c=rn(n,"output","maxPoolBackprop");P(u.rank===s.rank,function(){return"Rank of input ("+u.rank+") does not match rank of dy ("+s.rank+")"}),null==i&&(i=[1,1]),P(xo(o,i),function(){return"Error in maxPoolBackProp: Either strides or dilations must be 1. Got strides "+o+" and dilations '"+i+"'"}),P(4===s.rank,function(){return"Error in maxPoolBackprop: dy must be rank 4 but got rank "+s.rank+"."}),P(4===u.rank,function(){return"Error in maxPoolBackprop: input must be rank 4 but got rank "+u.rank+"."});var l=uo(u.shape,r,o,i,a,void 0);return Vt.runKernelFunc(function(t){return t.maxPoolBackprop(s,u,c,l)},{$dy:s,$input:u})}(0,e,n,r,o,i,a)}}},"MaxPool",c,l);return u?h.as3D(h.shape[1],h.shape[2],h.shape[3]):h}function Sc(t,e,n,r,o,i){var a=rn(t,"x","avgPool","float32");null==r&&(r=[1,1]),P(xo(n,r),function(){return"Error in avgPool: Either strides or dilations must be 1. Got strides "+n+" and dilations '"+r+"'"});var s=a,u=!1;3===a.rank&&(u=!0,s=a.as4D(1,a.shape[0],a.shape[1],a.shape[2])),P(4===s.rank,function(){return"Error in avgPool: x must be rank 4 but got rank "+s.rank+"."}),null!=i&&P(B(o),function(){return"Error in avgPool: pad must be an integer when using, dimRoundingMode "+i+" but got pad "+o+"."});var c=uo(s.shape,e,n,r,o,i);if(1===c.filterWidth&&1===c.filterHeight&&D(c.inShape,c.outShape))return a.clone();var l=Vt.runKernelFunc(function(t){return t.avgPool(s,c)},{x:s},function(p){return{x:function(){return function(t,e,n,r,o,i){var a=rn(p,"dy","avgPoolBackprop"),s=rn(e,"input","avgPoolBackprop");P(s.rank===a.rank,function(){return"Rank of input ("+s.rank+") does not match rank of dy ("+a.rank+")"}),null==o&&(o=[1,1]),P(xo(r,o),function(){return"Error in avgPoolBackprop: Either strides or dilations must be 1. Got strides "+r+" and dilations '"+o+"'"});var u=s,c=a,l=!1;3===s.rank&&(l=!0,u=s.as4D(1,s.shape[0],s.shape[1],s.shape[2]),c=a.as4D(1,a.shape[0],a.shape[1],a.shape[2])),P(4===c.rank,function(){return"Error in avgPoolBackprop: dy must be rank 4 but got rank "+c.rank+"."}),P(4===u.rank,function(){return"Error in avgPoolBackprop: input must be rank 4 but got rank "+u.rank+"."});var h=uo(u.shape,n,r,o,i),f=Vt.runKernelFunc(function(t){return t.avgPoolBackprop(c,u,h)},{dy4D:c,input4D:u});return l?f.as3D(f.shape[1],f.shape[2],f.shape[3]):f}(0,s,e,n,r,o)}}},"AvgPool",c);return l=l.cast(a.dtype),u?l.as3D(l.shape[1],l.shape[2],l.shape[3]):l}var Dc=mn({maxPool_:function(t,e,n,r,o){return kc(t,e,n,1,r,o)}}),Ac=mn({avgPool_:function(t,e,n,r,o){return Sc(t,e,n,1,r,o)}}),Tc=mn({pool_:function(t,e,n,r,o,i){null==o&&(o=[1,1]),null==i&&(i=1),0===r&&(r="valid");var a=rn(t,"x","maxPool"),s=a,u=!1;3===a.rank&&(u=!0,s=a.as4D(1,a.shape[0],a.shape[1],a.shape[2])),P(xo(i,o),function(){return"Error in pool: Either strides or dilations must be 1. Got strides "+i+" and dilations '"+o+"'"});var c,l,h,f,p,d,v=uo(s.shape,e,i,o,r),m=[v.dilationHeight,v.dilationWidth];c="same"===r?(l=[v.filterHeight,v.filterWidth],h=m,f=l.map(function(t,e){return t+(t-1)*(h[e]-1)}).map(function(t){return t-1}),p=f.map(function(t){return Math.floor(t/2)}),d=f.map(function(t,e){return t-p[e]}),f.map(function(t,e){return[p[e],d[e]]})):[[0,0],[0,0]];var g,y,x,b,w,C,E,_,I=1===m[0]&&1===m[1],R=(g=[v.inHeight,v.inWidth],y=m,b=(x=c).map(function(t){return t[0]}),w=x.map(function(t){return t[1]}),C=g.concat(b,w),E=y.map(function(t,e){return(t-C[e]%t)%t}),_=w.map(function(t,e){return t+E[e]}),[y.map(function(t,e){return[b[e],_[e]]}),y.map(function(t,e){return[0,E[e]]})]),k=R[1],S=I?r:"valid",D=I?s:kr(s,m,R[0]),A=("avg"===n?function(){return Sc(D,e,i,1,S)}:function(){return kc(D,e,i,1,S)})(),T=I?A:sr(A,m,k);return u?T.as3D(T.shape[1],T.shape[2],T.shape[3]):T}}),Fc=mn({maxPool3d_:function(t,r,o,i,a,e,s){void 0===e&&(e="NDHWC");var n=rn(t,"x","maxPool3d"),u=n,c=!1;4===n.rank&&(c=!0,u=n.as5D(1,n.shape[0],n.shape[1],n.shape[2],n.shape[3])),null==s&&(s=[1,1,1]),P(5===u.rank,function(){return"Error in maxPool3d: x must be rank 5 but got rank "+u.rank+"."}),P("NDHWC"===e,function(){return"Error in maxPool3d: Only NDHWC is currently supported, but got dataFormat of "+e}),P(xo(o,s),function(){return"Error in maxPool3d: Either strides or dilations must be 1. Got strides "+o+" and dilations '"+s+"'"}),null!=a&&P(B(i),function(){return"Error in maxPool3d: pad must be an integer when using, dimRoundingMode "+a+" but got pad "+i+"."});var l=co(u.shape,r,o,s,i,a,e),h=Vt.runKernelFunc(function(t,e){var n=t.maxPool3d(u,l);return e([u,n]),n},{x:u},function(g,t){var e=t[0],n=t[1];return{x:function(){return function(t,e,n,r,o,i,a,s){var u=rn(g,"dy","maxPool3dBackprop"),c=rn(e,"input","maxPool3dBackprop"),l=rn(n,"output","maxPool3dBackprop"),h=u,f=c,p=l,d=!1;4===c.rank&&(d=!0,h=u.as5D(1,u.shape[0],u.shape[1],u.shape[2],u.shape[3]),f=c.as5D(1,c.shape[0],c.shape[1],c.shape[2],c.shape[3]),p=l.as5D(1,l.shape[0],l.shape[1],l.shape[2],l.shape[3])),P(5===h.rank,function(){return"Error in maxPool3dBackprop: dy must be rank 5 but got rank "+h.rank+"."}),P(5===f.rank,function(){return"Error in maxPool3dBackprop: input must be rank 5 but got rank "+f.rank+"."}),P(5===p.rank,function(){return"Error in maxPool3dBackprop: output must be rank 5 but got rank "+p.rank+"."}),null==i&&(i=[1,1,1]),P(xo(o,i),function(){return"Error in maxPool3dBackprop: Either strides or dilations must be 1. Got strides "+o+" and dilations '"+i+"'"}),null!=s&&P(B(a),function(){return"Error in maxPool3dBackprop: pad must be an integer when using, dimRoundingMode "+s+" but got pad "+a+"."});var v=co(f.shape,r,o,i,a,s),m=Vt.runKernelFunc(function(t){return t.maxPool3dBackprop(h,f,p,v)},{dy5D:h,input5D:f});return d?m.as4D(m.shape[1],m.shape[2],m.shape[3],m.shape[4]):m}(0,e,n,r,o,s,i,a)}}});return c?h.as4D(h.shape[1],h.shape[2],h.shape[3],h.shape[4]):h}}),Nc=mn({avgPool3d_:function(t,e,n,r,o,i,a){void 0===i&&(i="NDHWC");var s=rn(t,"x","avgPool3d","float32"),u=s,c=!1;4===s.rank&&(c=!0,u=s.as5D(1,s.shape[0],s.shape[1],s.shape[2],s.shape[3])),null==a&&(a=[1,1,1]),P(5===u.rank,function(){return"Error in avgPool3d: x must be rank 5 but got rank "+u.rank+"."}),P("NDHWC"===i,function(){return"Error in avgPool3d: Only NDHWC is currently supported, but got dataFormat of "+i}),P(xo(n,a),function(){return"Error in avgPool3d: Either strides or dilations must be 1. Got strides "+n+" and dilations '"+a+"'"}),null!=o&&P(B(r),function(){return"Error in avgPool3d: pad must be an integer when using, dimRoundingMode "+o+" but got pad "+r+"."});var l=co(u.shape,e,n,a,r,o,i),h=Vt.runKernelFunc(function(t){return t.avgPool3d(u,l)},{x:u},function(d){return{x:function(){return function(t,e,n,r,o,i,a){var s=rn(d,"dy","avgPool3dBackprop"),u=rn(e,"input","avgPool3dBackprop"),c=s,l=u,h=!1;4===u.rank&&(h=!0,c=s.as5D(1,s.shape[0],s.shape[1],s.shape[2],s.shape[3]),l=u.as5D(1,u.shape[0],u.shape[1],u.shape[2],u.shape[3])),P(5===c.rank,function(){return"Error in avgPool3dBackprop: dy must be rank 5 but got rank "+c.rank+"."}),P(5===l.rank,function(){return"Error in avgPool3dBackprop: input must be rank 5 but got rank "+l.rank+"."}),null==o&&(o=[1,1,1]),P(xo(r,o),function(){return"Error in avgPool3dBackprop: Either strides or dilations must be 1. Got strides "+r+" and dilations '"+o+"'"}),null!=a&&P(B(i),function(){return"Error in maxPool3dBackprop: pad must be an integer when using, dimRoundingMode "+a+" but got pad "+i+"."});var f=co(l.shape,n,r,o,i,a),p=Vt.runKernelFunc(function(t){return t.avgPool3dBackprop(c,l,f)},{dy5D:c,input5D:l});return h?p.as4D(p.shape[1],p.shape[2],p.shape[3],p.shape[4]):p}(0,u,e,n,a,r,o)}}});return h=h.cast(u.dtype),c?h.as4D(h.shape[1],h.shape[2],h.shape[3],h.shape[4]):h}}),Mc=mn({slice_:function(t,e,n){var r,o,i=rn(t,"x","slice");if(0===i.rank)throw new Error("Slicing scalar is not possible");(r="number"==typeof e?[e].concat(new Array(i.rank-1).fill(0)):e.length<i.rank?e.concat(new Array(i.rank-e.length).fill(0)):e.slice()).forEach(function(t){P(-1!==t,function(){return"slice() does not support negative begin indexing."})}),o=(o=null==n?new Array(i.rank).fill(-1):"number"==typeof n?[n].concat(new Array(i.rank-1).fill(-1)):n.length<i.rank?n.concat(new Array(i.rank-n.length).fill(-1)):n).map(function(t,e){return 0<=t?t:(P(-1===t,function(){return"Negative size values should be exactly -1 but got "+t+" for the slice() size at index "+e+"."}),i.shape[e]-r[e])}),Ur(i,r,o);var a=i.shape,s={begin:r,size:o};return Vt.runKernelFunc(function(t){return t.slice(i,r,o)},{x:i},function(t){for(var e=[],n=0;n<t.rank;n++)e.push([r[n],a[n]-r[n]-o[n]]);return{x:function(){return t.pad(e)}}},"Slice",s)}}),Oc=mn({slice1d_:function(t,e,n){var r=rn(t,"x","slice1d");return P(1===r.rank,function(){return"slice1d expects a rank-1 tensor, but got a rank-"+r.rank+" tensor"}),Mc(r,[e],[n])}}),Pc=mn({slice2d_:function(t,e,n){var r=rn(t,"x","slice2d");return P(2===r.rank,function(){return"slice2d expects a rank-2 tensor, but got a rank-"+r.rank+" tensor"}),Mc(r,e,n)}}),Bc=mn({slice3d_:function(t,e,n){var r=rn(t,"x","slice3d");return P(3===r.rank,function(){return"slice3d expects a rank-3 tensor, but got a rank-"+r.rank+" tensor"}),Mc(r,e,n)}}),Lc=mn({slice4d_:function(t,e,n){var r=rn(t,"x","slice4d");return P(4===r.rank,function(){return"slice4d expects a rank-4 tensor, but got a rank-"+r.rank+" tensor"}),Mc(r,e,n)}});function Wc(e,n,r,t,o){return n.rank<r.rank&&(n=n.reshape(cn(n.shape,t))),e.rank<r.rank&&(e=e.reshape(cn(e.shape,t))),{x:function(){var t=e.mul(r.equal(n).cast(e.dtype));return null==o?t:t.transpose(o)}}}var zc=mn({all_:function(t,e,n){void 0===e&&(e=null),void 0===n&&(n=!1);var r=rn(t,"x","all","bool"),o=I(e,r.shape),i=o,a=hn(i,r.rank);null!=a&&(r=r.transpose(a),i=pn(i.length,r.rank));var s=Vt.runKernelFunc(function(t){return t.all(r,i)},{$x:r});if(n){var u=cn(s.shape,o);return s.reshape(u)}return s}}),Uc=mn({any_:function(t,e,n){void 0===e&&(e=null),void 0===n&&(n=!1);var r=rn(t,"x","any","bool"),o=I(e,r.shape),i=o,a=hn(i,r.rank);null!=a&&(r=r.transpose(a),i=pn(i.length,r.rank));var s=Vt.runKernelFunc(function(t){return t.any(r,i)},{$x:r});if(n){var u=cn(s.shape,o);return s.reshape(u)}return s}}),Vc=mn({argMax_:function(t,e){void 0===e&&(e=0);var r=rn(t,"x","argMax");null==e&&(e=0);var o=I(e,r.shape),n=hn(o,r.rank);null!=n&&(r=r.transpose(n),o=pn(o.length,r.rank));var i={axis:o[0]},a=[r];return Vt.runKernelFunc(function(t,e){var n=t.argMax(r,o[0]);return e([r]),n},{x:r},function(t,e){var n=e[0];return{x:function(){return Pn(n)}}},"ArgMax",i,a)}}),Gc=mn({argMin_:function(t,e){void 0===e&&(e=0);var r=rn(t,"x","argMin");null==e&&(e=0);var o=I(e,r.shape),n=hn(o,r.rank);return null!=n&&(r=r.transpose(n),o=pn(o.length,r.rank)),Vt.runKernelFunc(function(t,e){var n=t.argMin(r,o[0]);return e([r]),n},{$x:r},function(t,e){var n=e[0];return{$x:function(){return Pn(n)}}})}}),Hc=mn({logSumExp_:function(t,e,n){void 0===e&&(e=null),void 0===n&&(n=!1);var r=rn(t,"x","logSumExp"),o=I(e,r.shape),i=r.max(o,!0),a=r.sub(i).exp().sum(o).log(),s=i.reshape(a.shape).add(a);if(n){var u=cn(s.shape,o);return s.reshape(u)}return s}}),qc=mn({max_:function(t,e,n){void 0===e&&(e=null),void 0===n&&(n=!1);var r=rn(t,"x","max"),o=r,i=I(e,r.shape),a=i,s=hn(a,r.rank);null!=s&&(r=r.transpose(s),a=pn(a.length,r.rank));var u=[r],c=Vt.runKernelFunc(function(t,e){var n=t.max(r,a);return e([o,n]),n},{x:r},function(t,e){return Wc(t,e[1],e[0],i,s)},"Max",{axes:a},u,[!0]);if(n){var l=cn(c.shape,i);c=c.reshape(l)}return c}}),jc=mn({mean_:function(t,e,r){void 0===e&&(e=null),void 0===r&&(r=!1);var n=rn(t,"x","mean"),o=I(e,n.shape),i=L(un(n.shape,o)[1]);return Yr(function(n){var t=Cn(i);return{value:(t.dtype===n.dtype?n:n.cast(t.dtype)).div(t).sum(e,r),gradFunc:function(t){var e=n.shape.slice();return o.forEach(function(t){e[t]=1}),t.reshape(e).mul(An(n.shape,"float32")).div(i)}}})(n)}}),Kc=mn({min_:function(t,e,n){void 0===e&&(e=null),void 0===n&&(n=!1);var r=rn(t,"x","min"),o=r,i=I(e,r.shape),a=i,s=hn(a,r.rank);null!=s&&(r=r.transpose(s),a=pn(a.length,r.rank));var u=[r],c=Vt.runKernelFunc(function(t,e){var n=t.min(r,a);return e([o,n]),n},{x:r},function(t,e){return Wc(t,e[1],e[0],i,s)},"Min",{axes:a},u,[!0]);if(n){var l=cn(c.shape,i);c=c.reshape(l)}return c}}),Xc=mn({moments_:function(t,e,n){void 0===e&&(e=null),void 0===n&&(n=!1);var r=I(e,(t=rn(t,"x","moments")).shape),o=t.mean(r,n),i=o.shape;n||(i=cn(o.shape,r));var a=t.toFloat().sub(o.reshape(i)).square();return{mean:o,variance:a.mean(r,n)}}}),$c=mn({sum_:function(t,e,a){void 0===e&&(e=null),void 0===a&&(a=!1);var n=rn(t,"x","sum");"bool"===n.dtype&&(n=n.toInt());var s=I(e,n.shape);return Yr(function(n){var t=hn(s,n.rank),e=s,r=n;null!=t&&(r=n.transpose(t),e=pn(e.length,n.rank));var o=Vt.runKernelFunc(function(t){return t.sum(r,e)},{permutedX:r});if(a){var i=cn(o.shape,s);o=o.reshape(i)}return{value:o,gradFunc:function(t){var e=n.shape.slice();return s.forEach(function(t){e[t]=1}),t.reshape(e).mul(An(n.shape,"float32"))}}})(n)}}),Yc=mn({prod_:function(t,e,n){void 0===e&&(e=null),void 0===n&&(n=!1);var r=rn(t,"x","prod");"bool"===r.dtype&&(r=r.toInt());var o=I(e,r.shape),i=hn(o,r.rank),a=o,s=r;null!=i&&(s=r.transpose(i),a=pn(a.length,r.rank));var u=Vt.runKernelFunc(function(t){return t.prod(s,a)},{permutedX:s});if(n){var c=cn(u.shape,o);u=u.reshape(c)}return u}}),Jc=mn({elu_:function(t){var r=rn(t,"x","elu");return Vt.runKernelFunc(function(t,e){var n=t.elu(r);return e([n]),n},{$x:r},function(e,t){var n=t[0];return{$x:function(){return Vt.runKernelFunc(function(t){return t.eluDer(e,n)},{dy:e,y:n})}}})}}),Qc=mn({leakyRelu_:function(t,e){void 0===e&&(e=.2);var n=rn(t,"x","leakyRelu");return Su(Cn(e).mul(n),n)}}),Zc=mn({prelu_:function(t,e){var r=rn(t,"x","prelu"),o=rn(e,"alpha","prelu");return Vt.runKernelFunc(function(t,e){var n=t.prelu(r,o);return e([r,o]),n},{x:r,alpha:o},function(n,t){var r=t[0],o=t[1],i=r.greater(0);return{x:function(){return xu(i,n,n.mul(o))},alpha:function(){var t=xu(i,Pn(n),n.mul(r)),e=ao(o.shape,n.shape);return 0<e.length&&(t=t.sum(e)),t.reshape(o.shape)}}},"Prelu")}}),tl=mn({relu_:function(t){var r=rn(t,"x","relu");return"bool"===r.dtype?r.toInt():Vt.runKernelFunc(function(t,e){var n=t.relu(r);return e([r]),n},{x:r},function(t,e){var n=e[0];return{x:function(){return t.mulStrict(n.step().toFloat())}}},"Relu")}}),el=mn({relu6_:function(t){var r=rn(t,"x","relu6");return"bool"===r.dtype?r.toInt():Vt.runKernelFunc(function(t,e){var n=t.relu6(r);return e([r]),n},{x:r},function(t,e){var n=e[0],r=n.lessEqual(6).mul(n.step());return{x:function(){return t.mulStrict(r.toFloat())}}},"Relu6")}}),nl=mn({selu_:function(t){var r=rn(t,"x","selu");return Vt.runKernelFunc(function(t,e){var n=t.selu(r);return e([r]),n},{$x:r},function(i,t){var a=t[0];return{$x:function(){var t=a.greater(Cn(0)),e=Cn($a),n=Cn(Ya),r=i.mul(n),o=i.mul(e).mul(a.toFloat().exp());return xu(t,r,o)}}})}}),rl=mn({transpose_:function(t,n){var e=rn(t,"x","transpose");if(null==n&&(n=e.shape.map(function(t,e){return e}).reverse()),P(e.rank===n.length,function(){return"Error in transpose: rank of input "+e.rank+" must match 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e([r,n]),n},{x4D:r},function(e,t){var n=t[0],r=t[1];return{x4D:function(){return Vt.runKernelFunc(function(t){return t.LRNGrad(e,n,r,o,i,a,s)},{})}}});return n?u.as3D(u.shape[1],u.shape[2],u.shape[3]):u}}),il=mn({norm_:function(t,e,n,r){void 0===e&&(e="euclidean"),void 0===n&&(n=null),void 0===r&&(r=!1);var o=function t(e,n,r){if(void 0===r&&(r=null),0===e.rank)return e.abs();if(1!==e.rank&&null===r)return t(e.reshape([-1]),n,r);if(1===e.rank||"number"==typeof r||Array.isArray(r)&&1===r.length){if(1===n)return e.abs().sum(r);if(n===1/0)return e.abs().max(r);if(n===-1/0)return e.abs().min(r);if("euclidean"===n||2===n)return e.abs().pow(Cn(2,"int32")).sum(r).sqrt();throw new Error("Error in norm: invalid ord value: "+n)}if(Array.isArray(r)&&2===r.length){if(1===n)return e.abs().sum(r[0]).max(r[1]-1);if(n===1/0)return e.abs().sum(r[1]).max(r[0]);if(n===-1/0)return e.abs().sum(r[1]).min(r[0]);if("fro"===n||"euclidean"===n)return e.square().sum(r).sqrt();throw new Error("Error in norm: invalid ord value: "+n)}throw new Error("Error in norm: invalid axis: "+r)}(t=rn(t,"x","norm"),e,n),i=o.shape;if(r){var a=I(n,t.shape);i=cn(o.shape,a)}return o.reshape(i)}}),al=mn({basicLSTMCell_:function(t,e,n,r,o,i){var a=rn(t,"forgetBias","basicLSTMCell"),s=rn(e,"lstmKernel","basicLSTMCell"),u=rn(n,"lstmBias","basicLSTMCell"),c=rn(r,"data","basicLSTMCell"),l=rn(o,"c","basicLSTMCell"),h=rn(i,"h","basicLSTMCell"),f=c.concat(h,1).matMul(s).add(u),p=f.shape[0],d=f.shape[1]/4,v=[p,d],m=f.slice([0,0],v),g=f.slice([0,d],v),y=f.slice([0,2*d],v),x=f.slice([0,3*d],v),b=m.sigmoid().mulStrict(g.tanh()).addStrict(l.mulStrict(a.add(y).sigmoid())),w=b.tanh().mulStrict(x.sigmoid());return[b,w]}}),sl=mn({multiRNNCell_:function(t,e,n,r){for(var o=rn(e,"data","multiRNNCell"),i=on(n,"c","multiRNNCell"),a=on(r,"h","multiRNNCell"),s=o,u=[],c=0;c<t.length;c++){var l=t[c](s,i[c],a[c]);u.push(l[0]),u.push(l[1]),s=l[1]}var h=[],f=[];for(c=0;c<u.length;c+=2)h.push(u[c]),f.push(u[c+1]);return[h,f]}}),ul=mn({movingAverage_:function(t,e,n,r,o){void 0===o&&(o=!0);var i=rn(t,"v","movingAverage"),a=rn(e,"x","movingAverage"),s=rn(n,"decay","movingAverage");Mt(i,a),P(D(i.shape,a.shape),function(){return"Shape mismatch in v and x"});var u=Cn(1),c=u.sub(s),l=a.sub(i).mul(c);if(o){P(null!=r,function(){return"When using zeroDebias: true, step is required."});var h=rn(r,"step","movingAverage");l=l.div(u.sub(Pu(s,h)))}return i.add(l)}}),cl=mn({stridedSlice_:function(t,e,n,r,o,i,a,s,u){if(void 0===o&&(o=0),void 0===i&&(i=0),void 0===a&&(a=0),void 0===s&&(s=0),void 0===u&&(u=0),null==r&&(r=new Array(e.length)),0!==a)throw new Error("ellipsis mask is not yet supported");var c=rn(t,"x","stridedSlice"),l=Vr(s),h=c.shape.slice();l.forEach(function(t){e[t]=0,n[t]=1,h.splice(t,0,1)}),c=c.reshape(h);for(var f=0;f<c.rank;f++)e[f]=Hr(o,e,r,c.shape,f),n[f]=qr(i,n,r,c.shape,f),r[f]=r[f]||1;var p=Vr(u);p.forEach(function(t){n[t]=e[t]+1,r[t]=1});var d=Gr(e,n,r),v=d.filter(function(t,e){return-1===p.indexOf(e)});return r.every(function(t){return 1===t})?Mc(c,e,d).reshape(v):Vt.runKernelFunc(function(t){return t.stridedSlice(c,e,n,r)},{$x:c}).reshape(v)}}),ll=mn({topk_:function(t,e,n){void 0===e&&(e=1),void 0===n&&(n=!0);var r=rn(t,"x","topk");if(0===r.rank)throw new Error("topk() expects the input to be of rank 1 or higher");var o=r.shape[r.shape.length-1];if(o<e)throw new Error("'k' passed to topk() must be <= the last dimension ("+o+") but got "+e);var i=Vt.runKernelFunc(function(t){return t.topk(r,e,n)},{$x:r});return{values:i[0],indices:i[1]}}}),hl=mn({scatterND_:function(t,e,n){var r=rn(t,"indices","scatterND","int32"),o=rn(e,"updates","scatterND");return function(t,e,n){if(e.rank<1)throw new Error("tf.scatterND() expects the indices to be rank 1 or higher, but the rank was "+e.rank+".");if(t.rank<1)throw new Error("tf.scatterND() expects the updates to be rank 1 or higher, but the rank was "+t.rank+".");if("int32"!==e.dtype)throw new Error("The dtype of 'indices' should be int32, but got dtype: "+e.dtype);if(n.length<1)throw new Error("Output rank must be greater or equal to 1, but got shape: "+n);if(0===n.length){if(0===e.size)throw new Error("Indices specified for empty output. indices shape: "+e.shape);if(0===t.size)throw new Error("Updates specified for empty output. updates shape: "+t.shape)}!function(t,e,n){var r=1<e.rank?e.shape[e.rank-1]:1,o=1<e.rank?e.rank-1:1,i="Must have updates.shape = indices.shape[:batchDim] + shape[sliceDim:], got updates.shape: "+n.shape+", indices.shape: "+e.shape+", shape: "+t+", sliceDim: "+r+", and batchDim: "+o+".";if(n.rank<o)throw new Error(i+" update.rank < "+o+". ");if(t.length<r+(n.rank-o))throw new Error(i+" Output shape length < "+(r+(n.rank-o)));if(n.rank!==o+t.length-r)throw new Error(i+" update.rank != "+(o+t.length-r));for(var a=0;a<o;++a)if(n.shape[a]!==e.shape[a])throw new Error(i+" updates.shape["+a+"] ("+n.shape[a]+") != indices.shape["+a+"] ("+e.shape[a]+").");for(a=0;a<n.rank-o;++a)if(n.shape[a+o]!==t[a+r])throw new Error(i+" updates.shape["+(a+o)+"] ("+n.shape[a+o]+") != shape["+(a+o)+"] ("+t[a+o]+")")}(n,e,t)}(o,r,n),Vt.runKernelFunc(function(t){return t.scatterND(r,o,n)},{$indices:r,$updates:o})}}),fl=mn({fft_:function(t){P("complex64"===t.dtype,function(){return"The dtype for tf.spectral.fft() must be complex64 but got "+t.dtype+"."});var e=t.shape[t.shape.length-1],n=t.size/e,r=t.as2D(n,e);return Vt.runKernelFunc(function(t){return t.fft(r)},{input:t}).reshape(t.shape)}}),pl=mn({ifft_:function(t){P("complex64"===t.dtype,function(){return"The dtype for tf.spectral.ifft() must be complex64 but got "+t.dtype+"."});var e=t.shape[t.shape.length-1],n=t.size/e,r=t.as2D(n,e);return Vt.runKernelFunc(function(t){return t.ifft(r)},{input:t}).reshape(t.shape)}}),dl=mn({rfft_:function(t,e){P("float32"===t.dtype,function(){return"The dtype for rfft() must be real value but got "+t.dtype});var n,r=t.shape[t.shape.length-1],o=t.size/r;if(null!=e&&e<r){var i=t.shape.map(function(t){return 0}),a=t.shape.map(function(t){return t});a[t.shape.length-1]=e,n=t.slice(i,a),r=e}else if(null!=e&&r<e){var s=t.shape.map(function(t){return t});s[t.shape.length-1]=e-r,n=t.concat(Tn(s),t.shape.length-1),r=e}else n=t;var u=n.zerosLike(),c=gn(n,u).as2D(o,r),l=fl(c),h=Math.floor(r/2)+1,f=yn(l),p=xn(l),d=f.split([h,r-h],f.shape.length-1),v=p.split([h,r-h],p.shape.length-1),m=n.shape.slice();return m[n.shape.length-1]=h,gn(d[0],v[0]).reshape(m)}}),vl=mn({irfft_:function(t){var e=t.shape[t.shape.length-1],n=t.size/e;if(e<=2){var r=t.as2D(n,e),o=pl(r);return yn(o)}var i=[n,2*(e-1)],a=yn(t).as2D(n,e),s=xn(t).as2D(n,e),u=a.slice([0,1],[n,e-2]).reverse(1),c=s.slice([0,1],[n,e-2]).reverse(1).mul(Cn(-1)),l=a.concat(u,1),h=s.concat(c,1);return r=gn(l,h).as2D(i[0],i[1]),o=pl(r),yn(o)}}),ml=Object.freeze({fft:fl,ifft:pl,rfft:dl,irfft:vl}),gl=mn({sparseToDense_:function(t,e,n,r){void 0===r&&(r=0);var o=rn(t,"sparseIndices","sparseToDense","int32"),i=rn(e,"sparseValues","sparseToDense"),a=rn(r,"defaultValue","sparseToDense",i.dtype);return function(t,e,n,r){if("int32"!==t.dtype)throw new Error("tf.sparseToDense() expects the indices to be int32 type, but the dtype was "+t.dtype+".");if(2<t.rank)throw new Error("sparseIndices should be a scalar, vector, or matrix, but got shape "+t.shape+".");var o=0<t.rank?t.shape[0]:1,i=1<t.rank?t.shape[1]:1;if(n.length!==i)throw new Error("outputShape has incorrect number of elements:, "+n.length+", should be: "+i+".");var a=e.size;if(0!==e.rank&&(1!==e.rank||a!==o))throw new Error("sparseValues has incorrect shape "+e.shape+", should be [] or ["+o+"]");if(e.dtype!==r.dtype)throw new Error("sparseValues.dtype must match defaultValues.dtype")}(o,i,n,a),Vt.runKernelFunc(function(t){return t.sparseToDense(o,i,n,a)},{$sparseIndices:o,$sparseValues:i,$defaultValue:a})}}),yl=mn({gatherND_:function(t,e){var n=rn(e,"indices","gatherND","int32"),r=rn(t,"x","gatherND");return Vt.runKernelFunc(function(t){return t.gatherND(r,n)},{$x:r,$indices:n})}}),xl=mn({diag_:function(t){var e=rn(t,"x","diag").flatten(),n=t.shape.concat(t.shape);return Vt.runKernelFunc(function(t){return t.diag(e)},{$x:e}).reshape(n)}}),bl=mn({dropout_:function(t,e,n,r){var o=rn(t,"x","dropout");if(P("float32"===o.dtype,function(){return"x has to be a floating point tensor since it's going to be scaled, but got a "+o.dtype+" tensor instead."}),P(0<=e&&e<1,function(){return"rate must be a float in the range [0, 1), but got "+e+"."}),0===e)return t instanceof vt?o.clone():o;var i=function(t,e){if(null==e)return t.shape.slice();if(D(t.shape,e))return e;if(t.shape.length!==e.length)return e;for(var n=[],r=0;r<t.shape.length;r++)null==e[r]&&null!=t.shape[r]?n.push(t.shape[r]):n.push(e[r]);return n}(o,n),a=1-e,s=Ir(i,0,1,"float32",r).add(a).floor().div(a);return o.mul(s)}});function wl(t,e,n){for(var r=1-t%2,o=new Float32Array(t),i=0;i<t;++i){var a=2*Math.PI*i/(t+r-1);o[i]=e-n*Math.cos(a)}return En(o,"float32")}function Cl(v,m,g){return void 0===g&&(g=1),y(this,void 0,void 0,function(){var e,n,r,o,i,a,s,u,c,l,h,f,p,d;return R(this,function(t){switch(t.label){case 0:return e=rn(v,"predictions","inTopK"),n=rn(m,"targets","inTopK"),P(1<e.rank,function(){return"inTopK() expects the predictions to be of rank 2 or higher, but got "+e.rank}),P(e.rank-1===n.rank,function(){return"predictions rank should be 1 larger than targets rank, but got predictions rank "+e.rank+" and targets rank "+n.rank}),b(e.shape.slice(0,e.shape.length-1),n.shape,"predictions's shape should be align with the targets' shape, 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i;void 0===o&&(o=Il),null==r&&(i=e,r=Math.floor(Math.pow(2,Math.ceil(Math.log(i)/Math.log(2)))));for(var a=kl(t,e,n),s=Mu(a,o(e)),u=[],c=0;c<a.shape[0];c++)u.push(dl(s.slice([c,0],[1,e]),r));return Bn(u)}}),Dl=Object.freeze({hannWindow:Il,hammingWindow:Rl,frame:kl,stft:Sl});(_l=El=El||{})[_l.NONE=0]="NONE",_l[_l.MEAN=1]="MEAN",_l[_l.SUM=2]="SUM",_l[_l.SUM_BY_NONZERO_WEIGHTS=3]="SUM_BY_NONZERO_WEIGHTS";var Al=mn({absoluteDifference_:function(t,e,n,r){void 0===r&&(r=El.SUM_BY_NONZERO_WEIGHTS);var o=rn(t,"labels","absoluteDifference"),i=rn(e,"predictions","absoluteDifference"),a=null;null!=n&&(a=rn(n,"weights","absoluteDifference")),b(o.shape,i.shape,"Error in absoluteDifference: ");var s=o.sub(i).abs();return Tl(s,a,r)}}),Tl=mn({computeWeightedLoss_:function(t,e,n){void 0===n&&(n=El.SUM_BY_NONZERO_WEIGHTS);var r=rn(t,"losses","computeWeightedLoss"),o=null;null!=e&&(o=rn(e,"weights","computeWeightedLoss"));var i=null==o?r:r.mul(o);if(n===El.NONE)return i;if(n===El.SUM)return i.sum();if(n===El.MEAN){if(null==o)return i.mean();var a=r.size/o.size,s=i.sum().div(o.sum());return 1<a?s.div(Cn(a)):s}if(n!==El.SUM_BY_NONZERO_WEIGHTS)throw Error("Unknown reduction: "+n);if(null==o)return i.sum().div(Cn(r.size));var u=o.mul(An(r.shape)).notEqual(Cn(0)).sum().toFloat();return i.sum().div(u)}}),Fl=mn({cosineDistance_:function(t,e,n,r,o){void 0===o&&(o=El.SUM_BY_NONZERO_WEIGHTS);var i=rn(t,"labels","cosineDistance"),a=rn(e,"predictions","cosineDistance"),s=null;null!=r&&(s=rn(r,"weights","cosineDistance")),b(i.shape,a.shape,"Error in cosineDistance: ");var u=Cn(1).sub(i.mul(a).sum(n,!0));return Tl(u,s,o)}}),Nl=mn({hingeLoss_:function(t,e,n,r){void 0===r&&(r=El.SUM_BY_NONZERO_WEIGHTS);var o=rn(t,"labels","hingeLoss"),i=rn(e,"predictions","hingeLoss"),a=null;null!=n&&(a=rn(n,"weights","hingeLoss")),b(o.shape,i.shape,"Error in hingeLoss: ");var s=Cn(1);o=Cn(2).mul(o).sub(s);var u=s.sub(o.mul(i)).relu();return Tl(u,a,r)}}),Ml=mn({huberLoss_:function(t,e,n,r,o){void 0===r&&(r=1),void 0===o&&(o=El.SUM_BY_NONZERO_WEIGHTS);var i=rn(t,"labels","huberLoss"),a=rn(e,"predictions","huberLoss"),s=null;null!=n&&(s=rn(n,"weights","huberLoss")),b(i.shape,a.shape,"Error in huberLoss: ");var u=Cn(r),c=a.sub(i).abs(),l=Au(c,u),h=c.sub(l),f=Cn(.5).mul(l.square()).add(u.mul(h));return Tl(f,s,o)}}),Ol=mn({logLoss_:function(t,e,n,r,o){void 0===r&&(r=1e-7),void 0===o&&(o=El.SUM_BY_NONZERO_WEIGHTS);var i=rn(t,"labels","logLoss"),a=rn(e,"predictions","logLoss"),s=null;null!=n&&(s=rn(n,"weights","logLoss")),b(i.shape,a.shape,"Error in logLoss: ");var u=Cn(1),c=Cn(r),l=i.mul(a.add(c).log()).neg().sub(u.sub(i).mul(u.sub(a).add(c).log()));return Tl(l,s,o)}}),Pl=mn({meanSquaredError_:function(t,e,n,r){void 0===r&&(r=El.SUM_BY_NONZERO_WEIGHTS);var o=rn(t,"labels","meanSquaredError"),i=rn(e,"predictions","meanSquaredError"),a=null;null!=n&&(a=rn(n,"weights","meanSquaredError")),b(o.shape,i.shape,"Error in meanSquaredError: ");var s=o.squaredDifference(i);return Tl(s,a,r)}}),Bl=mn({sigmoidCrossEntropy_:function(t,e,n,r,o){void 0===r&&(r=0),void 0===o&&(o=El.SUM_BY_NONZERO_WEIGHTS);var s=rn(t,"multiClassLabels","sigmoidCrossEntropy"),i=rn(e,"logits","sigmoidCrossEntropy"),a=null;if(null!=n&&(a=rn(n,"weights","sigmoidCrossEntropy")),b(s.shape,i.shape,"Error in sigmoidCrossEntropy: "),0<r){var u=Cn(r),c=Cn(1),l=Cn(.5);s=s.mul(c.sub(u)).add(l.mul(u))}var h=function(t,e){var n=rn(s,"labels","sigmoidCrossEntropyWithLogits"),r=rn(e,"logits","sigmoidCrossEntropyWithLogits");b(n.shape,r.shape,"Error in sigmoidCrossEntropyWithLogits: ");var o=r.relu(),i=r.mul(n),a=r.abs().neg().exp().log1p();return o.sub(i).add(a)}(0,i);return Tl(h,a,o)}}),Ll=mn({softmaxCrossEntropy_:function(t,e,n,r,o){void 0===r&&(r=0),void 0===o&&(o=El.SUM_BY_NONZERO_WEIGHTS);var i=rn(t,"onehotLabels","softmaxCrossEntropy"),a=rn(e,"logits","softmaxCrossEntropy"),s=null;if(null!=n&&(s=rn(n,"weights","softmaxCrossEntropy")),b(i.shape,a.shape,"Error in softmaxCrossEntropy: "),0<r){var u=Cn(r),c=Cn(1),l=Cn(i.shape[1]);i=i.mul(c.sub(u)).add(u.div(l))}var h=function(t,e,i){if(void 0===i&&(i=-1),-1===i&&(i=e.rank-1),i!==e.rank-1)throw Error("Softmax cross entropy along a non-last dimension is not yet supported. Labels / logits was rank "+e.rank+" and dim was "+i);return Yr(function(t,e,n){var r=e.logSumExp([i],!0),o=e.toFloat().sub(r);return n([t,o]),{value:o.mul(t).neg().sum([i]),gradFunc:function(t,e){var n=e[0],r=e[1],o=cn(t.shape,[i]);return[t.reshape(o).mul(n.toFloat().sub(r.exp())),t.reshape(o).mul(r.exp().sub(n.toFloat()))]}}})(t,e)}(i,a);return Tl(h,s,o)}}),Wl=Object.freeze({get Reduction(){return El},absoluteDifference:Al,computeWeightedLoss:Tl,cosineDistance:Fl,hingeLoss:Nl,huberLoss:Ml,logLoss:Ol,meanSquaredError:Pl,sigmoidCrossEntropy:Bl,softmaxCrossEntropy:Ll});function zl(r,o){return void 0===o&&(o=!1),Vt.tidy(function(){if(2!==r.shape.length)throw new Error("qr2d() requires a 2D Tensor, but got a "+r.shape.length+"D Tensor.");for(var p=r.shape[0],d=r.shape[1],v=dr(p),m=r.clone(),g=_n([[1]],[1,1]),y=g.clone(),t=d<=p?d:p,e=function(f){var t,e=m,n=y,r=v;y=(t=Vt.tidy(function(){var t=m.slice([f,f],[p-f,1]),e=t.norm(),n=m.slice([f,f],[1,1]),r=_n([[-1]]).where(n.greater(0),_n([[1]])),o=n.sub(r.mul(e)),i=t.div(o);y=1===i.shape[0]?g.clone():g.concat(i.slice([1,0],[i.shape[0]-1,i.shape[1]]),0);var a=r.matMul(o).div(e).neg(),s=m.slice([f,0],[p-f,d]),u=a.mul(y);if(0===f)m=s.sub(u.matMul(y.transpose().matMul(s)));else{var c=s.sub(u.matMul(y.transpose().matMul(s)));m=m.slice([0,0],[f,d]).concat(c,0)}var l=v.slice([0,f],[p,v.shape[1]-f]);if(0===f)v=l.sub(l.matMul(y).matMul(u.transpose()));else{var h=l.sub(l.matMul(y).matMul(u.transpose()));v=v.slice([0,0],[p,f]).concat(h,1)}return[y,m,v]}))[0],m=t[1],v=t[2],Qe([e,n,r])},n=0;n<t;++n)e(n);return!o&&d<p&&(v=v.slice([0,0],[p,d]),m=m.slice([0,0],[d,d])),[v,m]})}var Ul=mn({bandPart_:function(t,e,n){if(e%1!=0)throw new Error("bandPart(): numLower must be an integer, got "+e+".");if(n%1!=0)throw new Error("bandPart(): numUpper must be an integer, got "+n+".");var r=rn(t,"a","bandPart");if(r.rank<2)throw new Error("bandPart(): Rank must be at least 2, got "+r.rank+".");var o=r.shape,i=r.shape.slice(-2),a=i[0],s=i[1];if(!(e<=a))throw new Error("bandPart(): numLower ("+e+") must not be greater than the number of rows ("+a+").");if(!(n<=s))throw new Error("bandPart(): numUpper ("+n+") must not be greater than the number of columns ("+s+").");e<0&&(e=a),n<0&&(n=s);var u=Mn(0,a,1,"int32").reshape([-1,1]),c=Mn(0,s,1,"int32"),l=zu(u,c),h=vu(l.lessEqual(Cn(+e,"int32")),l.greaterEqual(Cn(-n,"int32"))),f=Tn([a,s],r.dtype);return Dr(Fr(r.reshape([-1,a,s])).map(function(t){return xu(h,t,f)})).reshape(o)}}),Vl=mn({gramSchmidt_:function(e){var t;if(Array.isArray(e)){t=!1,P(null!=e&&0<e.length,function(){return"Gram-Schmidt process: input must not be null, undefined, or empty"});for(var n=e[0].shape[0],r=function(t){P(e[t].shape[0]===n,function(){return"Gram-Schmidt: Non-unique lengths found in the input vectors: ("+e[t].shape[0]+" vs. "+n+")"})},o=1;o<e.length;++o)r(o)}else t=!0,e=Vn(e,e.shape[0],0).map(function(t){return Sr(t,[0])});P(e.length<=e[0].shape[0],function(){return"Gram-Schmidt: Number of vectors ("+e.length+") exceeds number of dimensions ("+e[0].shape[0]+")."});function i(r){a.push(Vt.tidy(function(){var t=s[r];if(0<r)for(var e=0;e<r;++e){var n=$c(a[e].mulStrict(t)).mul(a[e]);t=t.sub(n)}return t.div(il(t,"euclidean"))}))}var a=[],s=e;for(o=0;o<e.length;++o)i(o);return t?Dr(a,0):a}}),Gl=mn({qr_:function(t,o){if(void 0===o&&(o=!1),t.rank<2)throw new Error("qr() requires input tensor to have a rank >= 2, but got rank "+t.rank);if(2===t.rank)return zl(t,o);var e=t.shape.slice(0,t.shape.length-2).reduce(function(t,e){return t*e}),n=Fr(t.reshape([e,t.shape[t.shape.length-2],t.shape[t.shape.length-1]]),0),i=[],a=[];return n.forEach(function(t){var e=zl(t,o),n=e[0],r=e[1];i.push(n),a.push(r)}),[Dr(i,0).reshape(t.shape),Dr(a,0).reshape(t.shape)]}}),Hl=Object.freeze({bandPart:Ul,gramSchmidt:Vl,qr:Gl});function ql(t,e,n,r,o){null==r&&(r=.5),null==o&&(o=Number.NEGATIVE_INFINITY);var i=t.shape[0];return n=Math.min(n,i),P(0<=r&&r<=1,function(){return"iouThreshold must be in [0, 1], but was '"+r+"'"}),P(2===t.rank,function(){return"boxes must be a 2D tensor, but was of rank '"+t.rank+"'"}),P(4===t.shape[1],function(){return"boxes must have 4 columns, but 2nd dimension was "+t.shape[1]}),P(1===e.rank,function(){return"scores must be a 1D tensor"}),P(e.shape[0]===i,function(){return"scores has incompatible shape with boxes. Expected "+i+", but was "+e.shape[0]}),{maxOutputSize:n,iouThreshold:r,scoreThreshold:o}}function jl(t,e){return!(0<t)||"linear"===e}function Kl(t,e,n){if(null==n||"linear"===n)return t;if("relu"===n)return t.mul(e.step());throw new Error("Gradient for activation "+n+" has not been implemented yet.")}function Xl(t,e){var n=e,r=ao(t.shape,e.shape);return 0<r.length&&(n=n.sum(r)),n.reshape(t.shape)}function $l(t,e,n){if("linear"===e)return t;if("relu"===e)return tl(t);if("elu"===e)return Jc(t);if("relu6"===e)return el(t);if("prelu"===e)return Zc(t,n);throw new Error("Unknown fused activation "+e+".")}var Yl=mn({resizeBilinear_:function(t,e,r){void 0===r&&(r=!1);var n=rn(t,"images","resizeBilinear");P(3===n.rank||4===n.rank,function(){return"Error in resizeBilinear: x must be rank 3 or 4, but got rank "+n.rank+"."}),P(2===e.length,function(){return"Error in resizeBilinear: new shape must 2D, but got shape "+e+"."});var o=n,i=!1;3===n.rank&&(i=!0,o=n.as4D(1,n.shape[0],n.shape[1],n.shape[2]));var a=e[0],s=e[1],u=Vt.runKernelFunc(function(t,e){return e([o]),t.resizeBilinear(o,a,s,r)},{x:o},function(e,n){return{x:function(){return Vt.runKernelFunc(function(t){return t.resizeBilinearBackprop(e,n[0],r)},{})}}},"ResizeBilinear",{alignCorners:r,newHeight:a,newWidth:s});return i?u.as3D(u.shape[1],u.shape[2],u.shape[3]):u}}),Jl=mn({resizeNearestNeighbor_:function(t,e,r){void 0===r&&(r=!1);var n=rn(t,"images","resizeNearestNeighbor");P(3===n.rank||4===n.rank,function(){return"Error in resizeNearestNeighbor: x must be rank 3 or 4, but got rank "+n.rank+"."}),P(2===e.length,function(){return"Error in resizeNearestNeighbor: new shape must 2D, but got shape "+e+"."}),P("float32"===n.dtype||"int32"===n.dtype,function(){return"`images` must have `int32` or `float32` as dtype"});var o=n,i=!1;3===n.rank&&(i=!0,o=n.as4D(1,n.shape[0],n.shape[1],n.shape[2]));var a=e[0],s=e[1],u=Vt.runKernelFunc(function(t,e){return e([o]),t.resizeNearestNeighbor(o,a,s,r)},{batchImages:o},function(e,n){return{batchImages:function(){return Vt.runKernelFunc(function(t){return t.resizeNearestNeighborBackprop(e,n[0],r)},{})}}});return i?u.as3D(u.shape[1],u.shape[2],u.shape[3]):u}}),Ql=mn({nonMaxSuppression_:function(t,e,n,r,o){void 0===r&&(r=.5),void 0===o&&(o=Number.NEGATIVE_INFINITY);var i=rn(t,"boxes","nonMaxSuppression"),a=rn(e,"scores","nonMaxSuppression"),s=ql(i,a,n,r,o);n=s.maxOutputSize,r=s.iouThreshold,o=s.scoreThreshold;var u={maxOutputSize:n,iouThreshold:r,scoreThreshold:o};return Vt.runKernelFunc(function(t){return t.nonMaxSuppression(i,a,n,r,o)},{boxes:i,scores:a},null,"NonMaxSuppressionV3",u)}}),Zl=mn({cropAndResize_:function(t,e,n,r,o,i){var a=rn(t,"image","cropAndResize"),s=rn(e,"boxes","cropAndResize","float32"),u=rn(n,"boxInd","cropAndResize","int32");o=o||"bilinear",i=i||0;var c=s.shape[0];return P(4===a.rank,function(){return"Error in cropAndResize: image must be rank 4,but got rank "+a.rank+"."}),P(2===s.rank&&4===s.shape[1],function(){return"Error in cropAndResize: boxes must be have size ["+c+",4] but had shape "+s.shape+"."}),P(1===u.rank&&u.shape[0]===c,function(){return"Error in cropAndResize: boxInd must be have size ["+c+"] but had shape "+s.shape+"."}),P(2===r.length,function(){return"Error in cropAndResize: cropSize must be of length 2, but got length "+r.length+"."}),P(1<=r[0]&&1<=r[1],function(){return"cropSize must be atleast [1,1], but was "+r}),P("bilinear"===o||"nearest"===o,function(){return"method must be bilinear or nearest, but was "+o}),Vt.runKernelFunc(function(t,e){return t.cropAndResize(a,s,u,r,o,i)},{images:a,boxes:s,boxInd:u},null,"CropAndResize",{method:o,extrapolationValue:i,cropSize:r})}}),th=Object.freeze({resizeBilinear:Yl,resizeNearestNeighbor:Jl,nonMaxSuppression:Ql,nonMaxSuppressionAsync:function(u,c,l,h,f){return void 0===h&&(h=.5),void 0===f&&(f=Number.NEGATIVE_INFINITY),y(this,void 0,void 0,function(){var e,n,r,o,i,a,s;return R(this,function(t){switch(t.label){case 0:return e=rn(u,"boxes","nonMaxSuppressionAsync"),n=rn(c,"scores","nonMaxSuppressionAsync"),r=ql(e,n,l,h,f),l=r.maxOutputSize,h=r.iouThreshold,f=r.scoreThreshold,[4,Promise.all([e.data(),n.data()])];case 1:return o=t.sent(),i=o[0],a=o[1],s=ko(i,a,l,h,f),e!==u&&e.dispose(),n!==c&&n.dispose(),[2,s]}})})},cropAndResize:Zl}),eh=mn({fusedMatMul_:function(t){var e,n=t.a,r=t.b,o=t.transposeA,s=void 0!==o&&o,i=t.transposeB,u=void 0!==i&&i,c=t.bias,a=t.activation,l=void 0===a?"linear":a,h=t.preluActivationWeights;if(!1===jl(Vt.state.gradientDepth,l)){var f=xc(n,r,s,u);return null!=c&&(f=bu(f,c)),$l(f,l,h)}var p=rn(n,"a","fused matMul"),d=rn(r,"b","fused matMul");e=Nt(p,d),p=e[0],d=e[1];var v=s?p.shape[p.rank-2]:p.shape[p.rank-1],m=u?d.shape[d.rank-1]:d.shape[d.rank-2],g=s?p.shape[p.rank-1]:p.shape[p.rank-2],y=u?d.shape[d.rank-2]:d.shape[d.rank-1],x=p.shape.slice(0,-2),b=d.shape.slice(0,-2),w=L(x),C=L(b);P(2<=p.rank&&2<=d.rank&&p.rank===d.rank,function(){return"Error in fused matMul: inputs must have the same rank of at least 2, got ranks "+p.rank+" and "+d.rank+"."}),P(D(x,b),function(){return"Error in fused matMul: outer dimensions ("+x+") and ("+b+") of Tensors with shapes "+p.shape+" and "+d.shape+" must match."}),P(v===m,function(){return"Error in fused matMul: inner shapes ("+v+") and ("+m+") of Tensors with shapes "+p.shape+" and "+d.shape+" and transposeA="+s+" and transposeB="+u+" must match."});var E,_,I=p.shape.slice(0,-2).concat([g,y]),R=s?p.as3D(w,v,g):p.as3D(w,g,v),k=u?d.as3D(C,y,m):d.as3D(C,m,y);null!=c&&so(I,(E=Nt(E=rn(c,"bias","fused matMul"),p)[0]).shape),null!=h&&(_=rn(h,"prelu weights","fused matMul"));var S={$a:R,$b:k};return null!=c&&(S.$bias=E),null!=h&&(S.$preluActivationWeights=_),Vt.runKernelFunc(function(t,e){var n=t.fusedBatchMatMul({a:R,b:k,transposeA:s,transposeB:u,bias:E,activation:l,preluActivationWeights:_});return e([R,k,n]),n},S,function(t,e){var n=e[0],r=e[1],o=e[2],i=Kl(t,o,l),a={};return null!=c&&(a={$bias:function(){return Xl(E,i)}}),s||u?!s&&u?Object.assign({$a:function(){return i.matMul(r,!1,!1)},$b:function(){return i.matMul(n,!0,!1)}},a):s&&!u?Object.assign({$a:function(){return r.matMul(i,!1,!0)},$b:function(){return n.matMul(i,!1,!1)}},a):Object.assign({$a:function(){return r.matMul(i,!0,!0)},$b:function(){return i.matMul(n,!0,!0)}},a):Object.assign({$a:function(){return i.matMul(r,!1,!0)},$b:function(){return n.matMul(i,!0,!1)}},a)}).reshape(I)}}),nh=mn({fusedConv2d_:function(t){var e=t.x,n=t.filter,u=t.strides,c=t.pad,r=t.dataFormat,o=void 0===r?"NHWC":r,i=t.dilations,l=void 0===i?[1,1]:i,a=t.dimRoundingMode,h=t.bias,s=t.activation,f=void 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Looks like you are running TensorFlow.js in Node.js. To speed things up dramatically, install our node backend, which binds to TensorFlow C++, by running npm i @tensorflow/tfjs-node, or npm i @tensorflow/tfjs-node-gpu if you have CUDA. Then call require('@tensorflow/tfjs-node'); (-gpu suffix for CUDA) at the start of your program. 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o=n?t.shape[1]:t.shape[2],i=n?t.shape[2]:t.shape[1],a=r?e.shape[1]:e.shape[2],s=t.shape[0],u=this.readSync(t.dataId),c=this.readSync(e.dataId),l=n?[t.strides[0],1,t.strides[1]]:[t.strides[0],t.strides[1],1],h=l[0],f=l[1],p=l[2],d=r?[1,e.strides[1],e.strides[0]]:[e.strides[1],1,e.strides[0]],v=d[0],m=d[1],g=d[2],y=i*a,x=or([s,i,a],t.dtype),b=x.values,w=this.blockSize,C=0;C<s;C++)for(var E=0;E<i;E+=w)for(var _=0;_<a;_+=w)for(var I=0;I<o;I+=w)for(var R=Math.min(E+w,i),k=Math.min(_+w,a),S=Math.min(I+w,o),D=E;D<R;D++)for(var A=_;A<k;A++){for(var T=0,F=I;F<S;F++)T+=u[C*h+D*f+F*p]*c[F*v+A*m+C*g];b[C*y+(D*a+A)]+=T}return x.toTensor()},lh.prototype.fusedBatchMatMul=function(t){var e=t.a,n=t.b,r=t.transposeA,o=t.transposeB,i=t.bias,a=t.activation,s=t.preluActivationWeights,u=this.batchMatMul(e,n,r,o);return i&&(u=this.add(u,i)),a&&(u=sh(this,u,a,s)),u},lh.prototype.multiply=function(t,e){return"complex64"===t.dtype||"complex64"===e.dtype?this.broadcastedBinaryComplexOp(t.cast("complex64"),e.cast("complex64"),function(t,e,n,r){return{real:t*n-e*r,imag:t*r+e*n}}):this.broadcastedBinaryOp(t,e,Tt(t.dtype,e.dtype),function(t,e){return t*e})},lh.prototype.realDivide=function(t,e){return ah([t,e],"realDivide"),this.broadcastedBinaryOp(t,e,"float32",function(t,e){return t/e})},lh.prototype.floorDiv=function(t,e){return ah([t,e],"floorDiv"),this.broadcastedBinaryOp(t,e,"int32",function(t,e){return Math.floor(t/e)})},lh.prototype.sum=function(t,e){ah(t,"sum"),ln("sum",e,t.rank);for(var n=un(t.shape,e),r=n[0],o=n[1],i=Tn(r,Tt(t.dtype,"int32")),a=L(o),s=this.readSync(i.dataId),u=this.readSync(t.dataId),c=0;c<s.length;++c){for(var l=c*a,h=0,f=0;f<a;++f)h+=u[l+f];s[c]=h}return i},lh.prototype.prod=function(t,e){ah(t,"sum");for(var n=un(t.shape,e),r=n[0],o=n[1],i=Tn(r,Tt(t.dtype,"int32")),a=L(o),s=this.readSync(i.dataId),u=this.readSync(t.dataId),c=0;c<s.length;++c){for(var l=c*a,h=1,f=0;f<a;++f)h*=u[l+f];s[c]=h}return i},lh.prototype.unsortedSegmentSum=function(t,e,n){ah(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=Cn(i,"int32"),s=Vu(a,e).asType("float32").mul(t).sum(0);r.push(s)}return Dr(r)},lh.prototype.argMin=function(t,e){ah(t,"argMin");var n=[e];ln("argMin",n,t.rank);for(var r=un(t.shape,n),o=r[0],i=r[1],a=Tn(o,"int32"),s=L(i),u=this.readSync(a.dataId),c=this.readSync(t.dataId),l=0;l<u.length;++l){for(var h=l*s,f=c[h],p=0,d=0;d<s;++d){var v=c[h+d];v<f&&(f=v,p=d)}u[l]=p}return a},lh.prototype.argMax=function(t,e){ah(t,"argMax");var n=[e];ln("argMax",n,t.rank);for(var r=un(t.shape,n),o=r[0],i=r[1],a=Tn(o,"int32"),s=L(i),u=this.readSync(a.dataId),c=this.readSync(t.dataId),l=0;l<u.length;++l){for(var h=l*s,f=c[h],p=0,d=0;d<s;++d){var v=c[h+d];f<v&&(f=v,p=d)}u[l]=p}return a},lh.prototype.cumsum=function(t,e,n,r){if(ah(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=Tt(t.dtype,"int32"),i=Tn(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 f=c(l,h);if(0===h)a[f]=n?0:s[f];else{var p=c(l,h-1);a[f]=n?s[p]+a[p]:s[f]+a[p]}}return i},lh.prototype.equal=function(t,e){return ah([t,e],"equal"),this.broadcastedBinaryOp(t,e,"bool",function(t,e){return t===e?1:0})},lh.prototype.notEqual=function(t,e){return ah([t,e],"notEqual"),this.broadcastedBinaryOp(t,e,"bool",function(t,e){return t!==e?1:0})},lh.prototype.less=function(t,e){return ah([t,e],"less"),this.broadcastedBinaryOp(t,e,"bool",function(t,e){return t<e?1:0})},lh.prototype.lessEqual=function(t,e){return ah([t,e],"lessEqual"),this.broadcastedBinaryOp(t,e,"bool",function(t,e){return t<=e?1:0})},lh.prototype.greater=function(t,e){return ah([t,e],"greater"),this.broadcastedBinaryOp(t,e,"bool",function(t,e){return e<t?1:0})},lh.prototype.greaterEqual=function(t,e){return ah([t,e],"greaterEqual"),this.broadcastedBinaryOp(t,e,"bool",function(t,e){return e<=t?1:0})},lh.prototype.logicalNot=function(t){ah(t,"logicalNot");for(var e=this.readSync(t.dataId),n=new Uint8Array(e.length),r=0;r<e.length;++r)n[r]=e[r]?0:1;return this.makeOutput(n,t.shape,"bool")},lh.prototype.logicalAnd=function(t,e){return ah([t,e],"logicalAnd"),this.broadcastedBinaryOp(t,e,"bool",function(t,e){return t&&e})},lh.prototype.logicalOr=function(t,e){return ah([t,e],"logicalOr"),this.broadcastedBinaryOp(t,e,"bool",function(t,e){return t||e})},lh.prototype.select=function(t,e,n){ah([t,e,n],"select");for(var r=this.readSync(t.dataId),o=this.readSync(e.dataId),i=this.readSync(n.dataId),a=Tn(e.shape,Tt(e.dtype,n.dtype)),s=this.readSync(a.dataId),u=0,c=0===t.rank||1<t.rank||1===e.rank?1:L(e.shape.slice(1)),l=0;l<r.length;l++)for(var h=0;h<c;h++)1===r[l]?s[u++]=o[l]:s[u++]=i[l];return a},lh.prototype.where=function(t){ah([t],"where");var e=this.readSync(t.dataId);return Fo(t.shape,e)},lh.prototype.topk=function(t,e,n){return ah(t,"topk"),To(this.readSync(t.dataId),t.shape,t.dtype,e)},lh.prototype.min=function(t,e){ah(t,"min"),ln("min",e,t.rank);for(var n=un(t.shape,e),r=n[0],o=n[1],i=Tn(r,t.dtype),a=L(o),s=this.readSync(i.dataId),u=this.readSync(t.dataId),c=0;c<s.length;++c){for(var l=c*a,h=u[l],f=0;f<a;++f){var p=u[l+f];p<h&&(h=p)}s[c]=h}return i},lh.prototype.minimum=function(t,e){return ah([t,e],"minimum"),this.broadcastedBinaryOp(t,e,t.dtype,function(t,e){return Math.min(t,e)})},lh.prototype.mod=function(t,e){return ah([t,e],"mod"),this.broadcastedBinaryOp(t,e,t.dtype,function(t,e){var n=t%e;return t<0&&e<0||0<=t&&0<=e?n:(n+e)%e})},lh.prototype.max=function(t,e){ah(t,"max"),ln("max",e,t.rank);for(var n=un(t.shape,e),r=n[0],o=n[1],i=Tn(r,t.dtype),a=L(o),s=this.readSync(i.dataId),u=this.readSync(t.dataId),c=0;c<s.length;++c){for(var l=c*a,h=u[l],f=0;f<a;++f){var p=u[l+f];h<p&&(h=p)}s[c]=h}return i},lh.prototype.maximum=function(t,e){return ah([t,e],"maximum"),this.broadcastedBinaryOp(t,e,t.dtype,function(t,e){return Math.max(t,e)})},lh.prototype.all=function(t,e){ah(t,"all"),ln("all",e,t.rank);for(var n=un(t.shape,e),r=n[0],o=n[1],i=Tn(r,t.dtype),a=L(o),s=this.readSync(i.dataId),u=this.readSync(t.dataId),c=0;c<s.length;++c){for(var l=c*a,h=u[l],f=0;f<a;++f){var p=u[l+f];h=h&&p}s[c]=h}return i},lh.prototype.any=function(t,e){ah(t,"any"),ln("any",e,t.rank);for(var n=un(t.shape,e),r=n[0],o=n[1],i=Tn(r,t.dtype),a=L(o),s=this.readSync(i.dataId),u=this.readSync(t.dataId),c=0;c<s.length;++c){for(var l=c*a,h=u[l],f=0;f<a;++f){var p=u[l+f];h=h||p}s[c]=h}return i},lh.prototype.squaredDifference=function(t,e){return ah([t,e],"squaredDifference"),this.broadcastedBinaryOp(t,e,t.dtype,function(t,e){var n=t-e;return n*n})},lh.prototype.ceil=function(t){ah(t,"ceil");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r)n[r]=Math.ceil(e[r]);return this.makeOutput(n,t.shape,"float32")},lh.prototype.floor=function(t){ah(t,"floor");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r)n[r]=Math.floor(e[r]);return this.makeOutput(n,t.shape,"float32")},lh.prototype.sign=function(t){ah(t,"x");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r)e[r]<0?n[r]=-1:0<e[r]?n[r]=1:n[r]=0;return this.makeOutput(n,t.shape,"float32")},lh.prototype.isNaN=function(t){ah(t,"x");for(var e=this.readSync(t.dataId),n=new Uint8Array(e.length),r=0;r<e.length;++r)Number.isNaN(e[r])&&(n[r]=1);return this.makeOutput(n,t.shape,"bool")},lh.prototype.isInf=function(t){ah(t,"x");for(var e=this.readSync(t.dataId),n=new Uint8Array(e.length),r=0;r<e.length;++r)Math.abs(e[r])===1/0&&(n[r]=1);return this.makeOutput(n,t.shape,"bool")},lh.prototype.isFinite=function(t){ah(t,"x");for(var e=this.readSync(t.dataId),n=new Uint8Array(e.length),r=0;r<e.length;++r)Number.isFinite(e[r])&&(n[r]=1);return this.makeOutput(n,t.shape,"bool")},lh.prototype.round=function(t){ah(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]):.5<e[r]-o?n[r]=Math.ceil(e[r]):n[r]=o%2==0?o:o+1}return this.makeOutput(n,t.shape,"float32")},lh.prototype.exp=function(t){ah(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 this.makeOutput(n,t.shape,"float32")},lh.prototype.expm1=function(t){ah(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 this.makeOutput(n,t.shape,"float32")},lh.prototype.log=function(t){ah(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 this.makeOutput(n,t.shape,"float32")},lh.prototype.log1p=function(t){ah(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 this.makeOutput(n,t.shape,"float32")},lh.prototype.sqrt=function(t){ah(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 this.makeOutput(n,t.shape,"float32")},lh.prototype.rsqrt=function(t){ah(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 this.makeOutput(n,t.shape,"float32")},lh.prototype.reciprocal=function(t){ah(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 this.makeOutput(n,t.shape,"float32")},lh.prototype.linear=function(t){return t},lh.prototype.relu=function(t){ah(t,"relu");for(var e=Tn(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},lh.prototype.relu6=function(t){ah(t,"relu");for(var e=Tn(t.shape,t.dtype),n=this.readSync(e.dataId),r=this.readSync(t.dataId),o=0;o<r.length;++o)n[o]=Math.min(Math.max(0,r[o]),6);return e},lh.prototype.prelu=function(t,e){return ah([t,e],"prelu"),this.broadcastedBinaryOp(t,e,t.dtype,function(t,e){return t<0?e*t:t})},lh.prototype.elu=function(t){ah(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]=0<=o?o:Math.exp(o)-1}return this.makeOutput(e,t.shape,"float32")},lh.prototype.eluDer=function(t,e){ah([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]=1<=a?o[i]:o[i]*(a+1)}return this.makeOutput(n,e.shape,"float32")},lh.prototype.selu=function(t){ah(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]=0<=o?1.0507009873554805*o:1.7580993408473768*(Math.exp(o)-1)}return this.makeOutput(e,t.shape,"float32")},lh.prototype.clip=function(t,e,n){ah(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]=n<a?n:a<e?e:a}return this.makeOutput(r,t.shape,"float32")},lh.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 this.makeOutput(e,t.shape,"float32")},lh.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 this.makeOutput(e,t.shape,"float32")},lh.prototype.int=function(t){ah(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 this.makeOutput(e,t.shape,"int32")},lh.prototype.sigmoid=function(t){ah(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 this.makeOutput(e,t.shape,"float32")},lh.prototype.softplus=function(t){ah(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 this.makeOutput(n,t.shape,"float32")},lh.prototype.sin=function(t){ah(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 this.makeOutput(e,t.shape,"float32")},lh.prototype.cos=function(t){ah(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 this.makeOutput(e,t.shape,"float32")},lh.prototype.tan=function(t){ah(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 this.makeOutput(e,t.shape,"float32")},lh.prototype.asin=function(t){ah(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 this.makeOutput(e,t.shape,"float32")},lh.prototype.acos=function(t){ah(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 this.makeOutput(e,t.shape,"float32")},lh.prototype.atan=function(t){ah(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 this.makeOutput(e,t.shape,"float32")},lh.prototype.atan2=function(t,e){return ah([t,e],"atan2"),this.broadcastedBinaryOp(t,e,t.dtype,function(t,e){return Math.atan2(t,e)})},lh.prototype.sinh=function(t){ah(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 this.makeOutput(e,t.shape,"float32")},lh.prototype.cosh=function(t){ah(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 this.makeOutput(e,t.shape,"float32")},lh.prototype.tanh=function(t){ah(t,"tanh");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=v(n[r]);return this.makeOutput(e,t.shape,"float32")},lh.prototype.asinh=function(t){ah(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 this.makeOutput(e,t.shape,"float32")},lh.prototype.acosh=function(t){ah(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 this.makeOutput(e,t.shape,"float32")},lh.prototype.atanh=function(t){ah(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 this.makeOutput(e,t.shape,"float32")},lh.prototype.erf=function(t){ah(t,"erf");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r){var o=Math.sign(n[r]),i=Math.abs(n[r]),a=1/(1+.3275911*i);e[r]=o*(1-((((1.061405429*a-1.453152027)*a+1.421413741)*a-.284496736)*a+.254829592)*a*Math.exp(-i*i))}return this.makeOutput(e,t.shape,"float32")},lh.prototype.step=function(t,e){void 0===e&&(e=0),ah(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]=0<i?1:e}return this.makeOutput(n,t.shape,"float32")},lh.prototype.fusedConv2d=function(t){var e=t.input,n=t.filter,r=t.convInfo,o=t.bias,i=t.activation,a=t.preluActivationWeights,s=this.conv2d(e,n,r);return o&&(s=this.add(s,o)),i&&(s=sh(this,s,i,a)),s},lh.prototype.conv2d=function(t,e,n){ah([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="channelsLast"===n.dataFormat,l=or(n.outShape,t.dtype),h=t.strides[0],f=c?t.strides[1]:t.strides[2],p=c?t.strides[2]:1,d=c?1:t.strides[1],v=l.strides[0],m=c?l.strides[1]:l.strides[2],g=c?l.strides[2]:1,y=c?1:l.strides[1],x=this.readSync(t.dataId),b=this.readSync(e.dataId),w=l.values,C=0;C<n.batchSize;++C)for(var E=C*h,_=C*v,I=0;I<n.outHeight;++I)for(var R=_+I*m,k=I*n.strideHeight-u,S=0;S<r;S++){var D=k+S*i;if(!(D<0||D>=n.inHeight))for(var A=S*e.strides[0],T=E+D*f,F=0;F<n.outWidth;++F)for(var N=R+F*g,M=F*n.strideWidth-s,O=0;O<o;O++){var P=M+O*a;if(!(P<0||P>=n.inWidth))for(var B=T+P*p,L=A+O*e.strides[1],W=0;W<n.inChannels;++W){for(var z=x[B+W*d],U=0;U<n.outChannels;++U)w[N+U*y]+=z*b[L+U];L+=n.outChannels}}}return l.toTensor()},lh.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,f=or(n.outShape,t.dtype),p=this.readSync(t.dataId),d=this.readSync(e.dataId),v=f.values,m=0;m<n.batchSize;++m)for(var g=m*t.strides[0],y=m*f.strides[0],x=0;x<n.outDepth;++x)for(var b=y+x*f.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],R=0;R<n.outHeight;++R)for(var k=b+R*f.strides[2],S=R*n.strideHeight-h,D=0;D<o;D++){var A=S+D*s;if(!(A<0||A>=n.inHeight))for(var T=_+D*e.strides[1],F=I+A*t.strides[2],N=0;N<n.outWidth;++N)for(var M=k+N*n.outChannels,O=N*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=F+B*n.inChannels,z=L,U=0;U<n.inChannels;++U){for(var V=p[W+U],G=0;G<n.outChannels;++G)v[M+G]+=V*d[z+G];z+=n.outChannels}}}}return f.toTensor()},lh.prototype.conv2dDerInput=function(t,e,n){ah([t,e],"conv2dDerInput");for(var r=or(n.inShape,"float32"),o=r.values,i=this.readSync(t.dataId),a=this.readSync(e.dataId),s=e.strides,u=s[0],c=s[1],l=s[2],h=n.batchSize,f=n.filterHeight,p=n.filterWidth,d=n.inChannels,v=n.inHeight,m=n.inWidth,g=n.outChannels,y=n.outHeight,x=n.outWidth,b=n.strideHeight,w=n.strideWidth,C=n.dataFormat,E=f-1-n.padInfo.top,_=p-1-n.padInfo.left,I="channelsLast"===C,R=r.strides[0],k=I?r.strides[1]:r.strides[2],S=I?r.strides[2]:1,D=I?1:r.strides[1],A=t.strides[0],T=I?t.strides[1]:t.strides[2],F=I?t.strides[2]:1,N=I?1:t.strides[1],M=0;M<h;++M)for(var O=0;O<d;++O)for(var P=0;P<v;++P)for(var B=P-E,L=Math.max(0,Math.ceil(B/b)),W=Math.min(y,(f+B)/b),z=0;z<m;++z){for(var U=z-_,V=Math.max(0,Math.ceil(U/w)),G=Math.min(x,(p+U)/w),H=0,q=L;q<W;++q)for(var j=q*b-B,K=V;K<G;++K)for(var X=A*M+T*q+F*K,$=u*(f-1-j)+c*(p-1-(K*w-U))+l*O,Y=0;Y<g;++Y)H+=i[X+N*Y]*a[$+Y];o[R*M+k*P+S*z+D*O]=H}return r.toTensor()},lh.prototype.conv3dDerInput=function(t,e,n){for(var r=or(n.inShape,"float32"),o=r.values,i=r.strides,a=i[0],s=i[1],u=i[2],c=i[3],l=this.readSync(t.dataId),h=t.strides,f=h[0],p=h[1],d=h[2],v=h[3],m=this.readSync(e.dataId),g=e.strides,y=g[0],x=g[1],b=g[2],w=g[3],C=n.batchSize,E=n.filterDepth,_=n.filterHeight,I=n.filterWidth,R=n.inChannels,k=n.inDepth,S=n.inHeight,D=n.inWidth,A=n.outChannels,T=n.outDepth,F=n.outHeight,N=n.outWidth,M=n.strideDepth,O=n.strideHeight,P=n.strideWidth,B=E-1-n.padInfo.front,L=_-1-n.padInfo.top,W=I-1-n.padInfo.left,z=0;z<C;++z)for(var U=0;U<R;++U)for(var V=0;V<k;++V)for(var G=V-B,H=Math.max(0,Math.ceil(G/M)),q=Math.min(T,(E+G)/M),j=0;j<S;++j)for(var K=j-L,X=Math.max(0,Math.ceil(K/O)),$=Math.min(F,(_+K)/O),Y=0;Y<D;++Y){for(var J=Y-W,Q=Math.max(0,Math.ceil(J/P)),Z=Math.min(N,(I+J)/P),tt=0,et=H;et<q;++et)for(var nt=et*M-G,rt=X;rt<$;++rt)for(var ot=rt*O-K,it=Q;it<Z;++it)for(var at=f*z+p*et+d*rt+v*it,st=y*(E-1-nt)+x*(_-1-ot)+b*(I-1-(it*P-J))+w*U,ut=0;ut<A;++ut)tt+=l[at+ut]*m[st+ut];o[a*z+s*V+u*j+c*Y+U]=tt}return r.toTensor()},lh.prototype.conv2dDerFilter=function(t,e,n){ah([t,e],"conv2dDerFilter");for(var r=n.strideHeight,o=n.strideWidth,i=n.filterHeight,a=n.filterWidth,s="channelsLast"===n.dataFormat,u=or(n.filterShape,"float32"),c=n.padInfo.left,l=n.padInfo.top,h=this.bufferSync(t),f=this.bufferSync(e),p=0;p<i;++p)for(var d=Math.max(0,Math.ceil((l-p)/r)),v=Math.min(n.outHeight,(n.inHeight+l-p)/r),m=0;m<a;++m)for(var g=Math.max(0,Math.ceil((c-m)/o)),y=Math.min(n.outWidth,(n.inWidth+c-m)/o),x=0;x<n.inChannels;++x)for(var b=0;b<n.outChannels;++b){for(var w=0,C=0;C<n.batchSize;++C)for(var E=d;E<v;++E)for(var _=p+E*r-l,I=g;I<y;++I){var R=m+I*o-c;w+=s?h.get(C,_,R,x)*f.get(C,E,I,b):h.get(C,x,_,R)*f.get(C,b,E,I)}u.set(w,p,m,x,b)}return u.toTensor()},lh.prototype.conv3dDerFilter=function(t,e,n){for(var r=n.strideDepth,o=n.strideHeight,i=n.strideWidth,a=n.filterDepth,s=n.filterHeight,u=n.filterWidth,c=or(n.filterShape,"float32"),l=c.values,h=c.strides,f=h[0],p=h[1],d=h[2],v=h[3],m=this.readSync(e.dataId),g=e.strides,y=g[0],x=g[1],b=g[2],w=g[3],C=this.readSync(t.dataId),E=t.strides,_=E[0],I=E[1],R=E[2],k=E[3],S=n.padInfo.front,D=n.padInfo.left,A=n.padInfo.top,T=0;T<a;++T)for(var F=Math.max(0,Math.ceil((S-T)/r)),N=Math.min(n.outDepth,(n.inDepth+S-T)/r),M=T*f,O=0;O<s;++O)for(var P=Math.max(0,Math.ceil((A-O)/o)),B=Math.min(n.outHeight,(n.inHeight+A-O)/o),L=O*p+M,W=0;W<u;++W)for(var z=Math.max(0,Math.ceil((D-W)/i)),U=Math.min(n.outWidth,(n.inWidth+D-W)/i),V=W*d+L,G=0;G<n.inChannels;++G)for(var H=G*v+V,q=0;q<n.outChannels;++q){for(var j=0,K=0;K<n.batchSize;++K)for(var X=K*_,$=K*y,Y=F;Y<N;++Y)for(var J=(T+Y*r-S)*I+X,Q=Y*x+$,Z=P;Z<B;++Z)for(var tt=(O+Z*o-A)*R+J,et=Z*b+Q,nt=z;nt<U;++nt){var rt=nt*w+et;j+=C[(W+nt*i-D)*k+tt+G]*m[rt+q]}l[H+q]=j}return c.toTensor()},lh.prototype.fusedDepthwiseConv2D=function(t){var e=t.input,n=t.filter,r=t.convInfo,o=t.bias,i=t.activation,a=t.preluActivationWeights,s=this.depthwiseConv2D(e,n,r);return o&&(s=this.add(s,o)),i&&(s=sh(this,s,i,a)),s},lh.prototype.depthwiseConv2D=function(t,e,n){ah([t,e],"depthwiseConv2D");for(var r=n.filterHeight,o=n.filterWidth,i=n.dilationHeight,a=n.dilationWidth,s=n.padInfo.left,u=n.padInfo.top,c=n.outChannels/n.inChannels,l=or(n.outShape,t.dtype),h=this.readSync(t.dataId),f=this.readSync(e.dataId),p=l.values,d=0;d<n.batchSize;++d)for(var v=d*t.strides[0],m=d*l.strides[0],g=0;g<n.outHeight;++g)for(var y=m+g*l.strides[1],x=g*n.strideHeight-s,b=0;b<r;++b){var w=x+b*i;if(!(w<0||w>=n.inHeight))for(var C=b*e.strides[0],E=v+w*t.strides[1],_=0;_<n.outWidth;++_)for(var I=y+_*l.strides[2],R=_*n.strideWidth-u,k=0;k<o;++k){var S=R+k*a;if(!(S<0||S>=n.inWidth))for(var D=C+k*e.strides[1],A=E+S*n.inChannels,T=I,F=D,N=0;N<n.inChannels;++N){for(var M=h[A+N],O=0;O<c;++O)p[T+O]+=M*f[F+O];T+=c,F+=c}}}return l.toTensor()},lh.prototype.depthwiseConv2DDerInput=function(t,e,n){ah([t,e],"depthwiseConv2DDerInput");for(var r=or(n.inShape,"float32"),o=r.values,i=r.strides,a=i[0],s=i[1],u=i[2],c=this.readSync(t.dataId),l=t.strides,h=l[0],f=l[1],p=l[2],d=this.readSync(e.dataId),v=e.strides,m=v[0],g=v[1],y=v[2],x=n.batchSize,b=n.filterHeight,w=n.filterWidth,C=n.inChannels,E=n.inHeight,_=n.inWidth,I=n.outChannels,R=n.outHeight,k=n.outWidth,S=n.strideHeight,D=n.strideWidth,A=b-1-n.padInfo.top,T=w-1-n.padInfo.left,F=I/C,N=0;N<x;++N)for(var M=0;M<C;++M)for(var O=0;O<E;++O)for(var P=O-A,B=Math.max(0,Math.ceil(P/S)),L=Math.min(R,(b+P)/S),W=0;W<_;++W){for(var z=W-T,U=Math.max(0,Math.ceil(z/D)),V=Math.min(k,(w+z)/D),G=0,H=B;H<L;++H)for(var q=H*S-P,j=U;j<V;++j)for(var K=h*N+f*H+p*j,X=m*(b-1-q)+g*(w-1-(j*D-z))+y*M,$=0;$<F;++$)G+=c[K+(M*F+$)]*d[X+$];o[a*N+s*O+u*W+M]=G}return r.toTensor()},lh.prototype.depthwiseConv2DDerFilter=function(t,e,n){ah([t,e],"depthwiseConv2DDerFilter");for(var r=n.strideHeight,o=n.strideWidth,i=n.filterHeight,a=n.filterWidth,s=or(n.filterShape,"float32"),u=n.padInfo.left,c=n.padInfo.top,l=n.outChannels/n.inChannels,h=this.bufferSync(t),f=this.bufferSync(e),p=0;p<i;++p)for(var d=Math.max(0,Math.ceil((c-p)/r)),v=Math.min(n.outHeight,(n.inHeight+c-p)/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=p+_*r-c,R=g;R<y;++R){var k=m+R*o-u;C+=h.get(E,I,k,b)*f.get(E,_,R,x)}s.set(C,p,m,b,w)}return s.toTensor()},lh.prototype.tile=function(t,e){return ah(t,"tile"),Ao(this.bufferSync(t),e)},lh.prototype.pad=function(n,t,e){ah(n,"pad");var r=t.map(function(t,e){return t[0]+n.shape[e]+t[1]}),o=t.map(function(t){return t[0]}),i=this.bufferSync(n),a=or(r,n.dtype);0!==e&&a.values.fill(e);for(var s=0;s<n.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()},lh.prototype.transpose=function(t,e){ah(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=or(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()},lh.prototype.gather=function(t,e,n){ah([t,e],"gather");var r=t.shape.slice(),o=this.readSync(e.dataId);r[n]=o.length;for(var i=or(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()},lh.prototype.batchToSpaceND=function(t,e,n){ah([t],"batchToSpaceND");var r=e.reduce(function(t,e){return t*e}),o=Nr(t.shape,e,r),i=Mr(o.length,e.length),a=Or(t.shape,e,r),s=Pr(n,e.length),u=Br(a,n,e.length);return t.reshape(o).transpose(i).reshape(a).slice(s,u)},lh.prototype.spaceToBatchND=function(t,e,n){ah([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=Nr(a.shape,e,r,!1),u=Mr(s.length,e.length,!1),c=Or(a.shape,e,r,!1);return a.reshape(s).transpose(u).reshape(c)},lh.prototype.pool=function(t,e,n){ah(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,f=this.readSync(t.dataId),p=or(e.outShape,t.dtype),d=p.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),R=x+C*m,k=0;k<e.outWidth;++k){for(var S=k*o-l,D=Math.max(0,S),A=Math.min(e.inWidth,u+S),T=h,F=0,N=0,M=_;M<I;M+=i){for(var O=b+M*t.strides[1],P=D;P<A;P+=a){var B=f[O+P*t.strides[2]+w];"max"===n&&T<B?T=B:"avg"===n&&(F+=B,N++)}if(isNaN(T))break}d[R+k*g+w]="avg"===n?F/N:T}return p.toTensor()},lh.prototype.maxPool=function(t,e){return this.pool(t,e,"max")},lh.prototype.maxPoolPositions=function(t,e){for(var n=or(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),f=0;f<e.batchSize;++f)for(var p=0;p<e.inChannels;++p)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,R=b;R<w;R+=a){var k=R-x,S=h.get(f,_,R,p);C<S&&(C=S,E=I*u+k)}n.set(E,f,d,y,p)}}return n.toTensor()},lh.prototype.maxPoolBackprop=function(t,e,n,r){ah([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,f=c-1-r.padInfo.top,p=or(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-f,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 R=(w+I)/a;if(!(R<0||R>=r.outWidth||Math.floor(R)!==R)){var k=c*l-1-d.get(m,_,R,g)===E*l+I?1:0;0!=k&&(C+=v.get(m,_,R,g)*k)}}}p.set(C,m,y,x,g)}return p.toTensor()},lh.prototype.avgPoolBackprop=function(t,e,n){ah([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,f=c-1-n.padInfo.top,p=or(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-f,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 R=(w+I)/o;R<0||R>=n.outWidth||Math.floor(R)!==R||(C+=v.get(m,_,R,g))}}p.set(C*d,m,y,x,g)}return p.toTensor()},lh.prototype.pool3d=function(t,e,n){ah(t,"pool3d");for(var r=e.strideDepth,o=e.strideHeight,i=e.strideWidth,a=e.dilationDepth,s=e.dilationHeight,u=e.dilationWidth,c=e.effectiveFilterDepth,l=e.effectiveFilterHeight,h=e.effectiveFilterWidth,f=e.padInfo.front,p=e.padInfo.top,d=e.padInfo.left,v="max"===n?Number.NEGATIVE_INFINITY:Number.POSITIVE_INFINITY,m=this.readSync(t.dataId),g=or(e.outShape,t.dtype),y=g.values,x=e.outShape[1]*e.outShape[2]*e.outShape[3]*e.outShape[4],b=e.outShape[2]*e.outShape[3]*e.outShape[4],w=e.outShape[3]*e.outShape[4],C=e.outShape[4],E=0;E<e.batchSize;++E)for(var _=E*x,I=E*t.strides[0],R=0;R<e.inChannels;++R)for(var k=0;k<e.outDepth;++k){for(var S=k*r-f,D=S;D<0;)D+=a;for(var A=Math.min(e.inDepth,c+S),T=_+k*b,F=0;F<e.outHeight;++F){for(var N=F*o-p,M=N;M<0;)M+=s;for(var O=Math.min(e.inHeight,l+N),P=T+F*w,B=0;B<e.outWidth;++B){for(var L=B*i-d,W=L;W<0;)W+=u;for(var z=Math.min(e.inWidth,h+L),U=P+B*C,V=v,G=0,H=0,q=D;q<A;q+=a){for(var j=I+q*t.strides[1],K=M;K<O;K+=s){for(var X=j+K*t.strides[2],$=W;$<z;$+=u){var Y=m[X+$*t.strides[3]+R];if("max"===n&&V<Y?V=Y:"avg"===n&&(G+=Y,H++),isNaN(V))break}if(isNaN(V))break}if(isNaN(V))break}y[U+R]="avg"===n?G/H:V}}}return g.toTensor()},lh.prototype.avgPool3d=function(t,e){return ah(t,"avgPool3d"),this.pool3d(t,e,"avg").toFloat()},lh.prototype.avgPool3dBackprop=function(t,e,n){ah([t,e],"avgPool3dBackprop");for(var r=n.strideDepth,o=n.strideHeight,i=n.strideWidth,a=n.filterDepth,s=n.filterHeight,u=n.filterWidth,c=n.dilationDepth,l=n.dilationHeight,h=n.dilationWidth,f=n.effectiveFilterDepth,p=n.effectiveFilterHeight,d=n.effectiveFilterWidth,v=f-1-n.padInfo.front,m=d-1-n.padInfo.left,g=p-1-n.padInfo.top,y=or(e.shape,"float32"),x=1/(a*s*u),b=this.bufferSync(t),w=0;w<n.batchSize;++w)for(var C=0;C<n.inChannels;++C)for(var E=0;E<n.inDepth;++E)for(var _=0;_<n.inHeight;++_)for(var I=0;I<n.inWidth;++I){for(var R=E-v,k=_-g,S=I-m,D=0,A=0;A<f;A+=c){var T=(R+A)/r;if(!(T<0||T>=n.outDepth||Math.floor(T)!==T))for(var F=0;F<p;F+=l){var N=(k+F)/o;if(!(N<0||N>=n.outHeight||Math.floor(N)!==N))for(var M=0;M<d;M+=h){var O=(S+M)/i;O<0||O>=n.outWidth||Math.floor(O)!==O||(D+=b.get(w,T,N,O,C))}}}y.set(D*x,w,E,_,I,C)}return y.toTensor()},lh.prototype.maxPool3d=function(t,e){return ah(t,"maxPool3d"),this.pool3d(t,e,"max").toFloat()},lh.prototype.maxPool3dPositions=function(t,e){for(var n=or(e.outShape,"int32"),r=e.strideDepth,o=e.strideHeight,i=e.strideWidth,a=e.dilationDepth,s=e.dilationHeight,u=e.dilationWidth,c=e.effectiveFilterDepth,l=e.effectiveFilterHeight,h=e.effectiveFilterWidth,f=e.padInfo.front,p=e.padInfo.top,d=e.padInfo.left,v=this.bufferSync(t),m=0;m<e.batchSize;++m)for(var g=0;g<e.inChannels;++g)for(var y=0;y<e.outDepth;++y){for(var x=y*r-f,b=x;b<0;)b+=a;for(var w=Math.min(e.inDepth,c+x),C=0;C<e.outHeight;++C){for(var E=C*o-p,_=E;_<0;)_+=s;for(var I=Math.min(e.inHeight,l+E),R=0;R<e.outWidth;++R){for(var k=R*i-d,S=k;S<0;)S+=u;for(var D=Math.min(e.inWidth,h+k),A=Number.NEGATIVE_INFINITY,T=-1,F=b;F<w;F+=a)for(var N=F-x,M=_;M<I;M+=s)for(var O=M-E,P=S;P<D;P+=u){var B=P-k,L=v.get(m,F,M,P,g);A<=L&&(A=L,T=N*l*h+O*l+B)}n.set(T,m,y,C,R,g)}}}return n.toTensor()},lh.prototype.maxPool3dBackprop=function(t,e,n,r){ah([e,n],"maxPool3dBackprop");for(var o=this.maxPool3dPositions(e,r),i=r.strideDepth,a=r.strideHeight,s=r.strideWidth,u=r.dilationDepth,c=r.dilationHeight,l=r.dilationWidth,h=r.effectiveFilterDepth,f=r.effectiveFilterHeight,p=r.effectiveFilterWidth,d=h-1-r.padInfo.front,v=p-1-r.padInfo.left,m=f-1-r.padInfo.top,g=or(e.shape,"float32"),y=this.bufferSync(o),x=this.bufferSync(t),b=0;b<r.batchSize;++b)for(var w=0;w<r.inChannels;++w)for(var C=0;C<r.inDepth;++C)for(var E=0;E<r.inHeight;++E)for(var _=0;_<r.inWidth;++_){for(var I=C-d,R=E-m,k=_-v,S=0,D=0;D<h;D+=u){var A=(I+D)/i;if(!(A<0||A>=r.outDepth||Math.floor(A)!==A))for(var T=0;T<f;T+=c){var F=(R+T)/a;if(!(F<0||F>=r.outHeight||Math.floor(F)!==F))for(var N=0;N<p;N+=l){var M=(k+N)/s;if(!(M<0||M>=r.outWidth||Math.floor(M)!==M)){var O=h*f*p-1-y.get(b,A,F,M,w)===D*f*p+T*p+N?1:0;0!=O&&(S+=x.get(b,A,F,M,w)*O)}}}}g.set(S,b,C,E,_,w)}return g.toTensor()},lh.prototype.cast=function(t,e){return wo(t,e,this)},lh.prototype.reshape=function(t,e){return Co(t,e)},lh.prototype.avgPool=function(t,e){return ah(t,"avgPool"),this.pool(t,e,"avg").toFloat()},lh.prototype.resizeBilinear=function(t,e,n,r){ah(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(L([i,e,n,u])),h=[r&&1<e?a-1:a,r&&1<n?s-1:s],f=[r&&1<e?e-1:e,r&&1<n?n-1:n],p=0,d=h[0]/f[0],v=h[1]/f[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],_=0;_<n;_++)for(var I=v*_,R=Math.floor(I),k=I-R,S=Math.min(s-1,Math.ceil(I)),D=C+R*t.strides[2],A=E+R*t.strides[2],T=C+S*t.strides[2],F=E+S*t.strides[2],N=0;N<u;N++){var M=c[D+N],O=c[A+N],P=M+(c[T+N]-M)*k,B=P+(O+(c[F+N]-O)*k-P)*b;l[p++]=B}return bn(l,[i,e,n,u])},lh.prototype.resizeBilinearBackprop=function(t,e,n){ah([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),f=[n&&1<c?i-1:i,n&&1<l?a-1:a],p=[n&&1<c?c-1:c,n&&1<l?l-1:l],d=f[0]/p[0],v=f[1]/p[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],R=w-C,k=1-R,S=0;S<l;S++)for(var D=S*v,A=Math.floor(D),T=Math.min(Math.ceil(D),a-1),F=D-A,N=1-F,M=_+A*e.strides[2],O=_+T*e.strides[2],P=I+A*e.strides[2],B=I+T*e.strides[2],L=k*N,W=k*F,z=R*N,U=R*F,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 Rn(h,[o,a,i,s],e.dtype)},lh.prototype.resizeNearestNeighbor=function(t,e,n,r){ah(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&&1<e?a-1:a,r&&1<n?s-1:s],f=[r&&1<e?e-1:e,r&&1<n?n-1:n],p=h[0]/f[0],d=h[1]/f[1],v=0,m=0;m<i;m++)for(var g=m*t.strides[0],y=0;y<e;y++)for(var x=p*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 bn(l,[i,e,n,u],t.dtype)},lh.prototype.resizeNearestNeighborBackprop=function(t,e,n){ah([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),f=this.readSync(t.dataId),p=[n&&1<c?i-1:i,n&&1<l?a-1:a],d=[n&&1<c?c-1:c,n&&1<l?l-1:l],v=p[0]/d[0],m=p[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),R=Math.floor(I-x/2),k=0;k<a;k++)for(var S=_+k*e.strides[2],D=Math.floor(k*y),A=Math.floor(D-b/2),T=0;T<s;T++){for(var F=0,N=0;N<x;N++){var M=N+R;if(!(M<0||c<=M)){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;k===Math.min(a-1,n?Math.round(z):Math.floor(z))&&(F+=f[W+T])}}}}h[S+T]=F}return Rn(h,e.shape,e.dtype)},lh.prototype.batchNormalization=function(t,e,n,r,o,i){ah([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),f=l.length,p=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),f<=m&&(m=0),v<=g&&(g=0),p<=y&&(y=0),d<=x&&(x=0);return Rn(h,t.shape)},lh.prototype.localResponseNormalization4D=function(t,a,e,n,r){ah(t,"localResponseNormalization4D");var s=t.shape[3],u=s-1,c=this.readSync(t.dataId),o=t.size,i=new Float32Array(o);function l(t){for(var e=t%s,n=t-e+Math.max(0,e-a),r=t-e+Math.min(e+a,u),o=0;n<=r;n++){var i=c[n];o+=i*i}return o}for(var h=0;h<o;h++){var f=l(h),p=c[h]*Math.pow(e+n*f,-r);i[h]=p}return Rn(i,t.shape)},lh.prototype.LRNGrad=function(t,e,n,r,o,i,a){ah(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),f=t.size,p=0;p<f;p++){for(var d=p%s,v=p-d+Math.max(0,d-r),m=p-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[p]/g;p===y&&(x+=Math.pow(g,-a)),x*=u[p],h[y]+=x}}return Rn(h,t.shape)},lh.prototype.multinomial=function(t,e,n,r){ah(t,"multinomial");for(var o=e?t:Qr(t),i=o.shape[0],a=o.shape[1],s=Tn([i,n],"int32"),u=this.readSync(s.dataId),c=this.readSync(o.dataId),l=0;l<i;++l){var h=l*a,f=new Float32Array(a-1);f[0]=c[h];for(var p=1;p<f.length;++p)f[p]=f[p-1]+c[h+p];for(var d=Jn(r.toString()),v=l*n,m=0;m<n;++m){var g=d();u[v+m]=f.length;for(var y=0;y<f.length;y++)if(g<f[y]){u[v+m]=y;break}}}return s},lh.prototype.oneHot=function(t,e,n,r){ah(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)0<=i[a]&&i[a]<e&&(o[a*e+i[a]]=n);return _n(o,[t.size,e],"int32")},lh.prototype.nonMaxSuppression=function(t,e,n,r,o){return ah(t,"nonMaxSuppression"),ko(this.readSync(t.dataId),this.readSync(e.dataId),n,r,o)},lh.prototype.fft=function(t){return this.fftBatch(t,!1)},lh.prototype.ifft=function(t){return this.fftBatch(t,!0)},lh.prototype.fftBatch=function(t,e){for(var n=t.shape[0],r=t.shape[1],o=or(t.shape,"float32"),i=or(t.shape,"float32"),a=yn(t).as2D(n,r),s=xn(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=gn(c,l),f=this.readSync(this.fftImpl(h,e).dataId),p=0;p<r;p++){var d=Ro(f,p);o.values[u*r+p]=d.real,i.values[u*r+p]=d.imag}return gn(o.toTensor(),i.toTensor()).as2D(n,r)},lh.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=gn(yn(o).div(Cn(r)),xn(o).div(Cn(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 gn(a.real,a.imag).as2D(t.shape[0],t.shape[1])},lh.prototype.isExponentOf2=function(t){return 0==(t&t-1)},lh.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=gn(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=gn(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=gn(c.real,c.imag).mul(u),h=a.add(l),f=a.sub(l),p=yn(h).concat(yn(f)),d=xn(h).concat(xn(f));return gn(p,d).as1D()},lh.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=(d=o*s,v=e,m=(n?2:-2)*Math.PI*(d/v),{real:Math.cos(m),imag:Math.sin(m)}),c=Ro(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),h=i,f=a,(l=r)[2*(p=o)]=h,l[2*p+1]=f}var l,h,f,p,d,v,m;return r},lh.prototype.depthToSpace=function(t,e,n){P("NHWC"===n,function(){return"Only NHWC dataFormat supported on CPU for depthToSpace. Got "+n}),P(1<e,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),f=0,p=0;p<r;++p)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,b=0;b<c;++b){var w=b+x+a*(y+i*(v+o*p));h[f++]=l[w]}return Rn(h,[r,s,u,c])},lh.prototype.broadcastedBinaryOp=function(a,s,t,u){var e=so(a.shape,s.shape),c=or(e,t),l=this.readSync(a.dataId),h=this.readSync(s.dataId),f=io(a.shape,e),p=io(s.shape,e),d=c.values;if(f.length+p.length===0)for(var n=0;n<d.length;++n)d[n]=u(l[n%l.length],h[n%h.length]);else{var v=this.bufferSync(a),m=this.bufferSync(s),r=function(t){var e=c.indexToLoc(t),n=e.slice(-a.rank);f.forEach(function(t){return n[t]=0});var r=v.locToIndex(n),o=e.slice(-s.rank);p.forEach(function(t){return o[t]=0});var i=m.locToIndex(o);d[t]=u(l[r],h[i])};for(n=0;n<d.length;++n)r(n)}return c.toTensor()},lh.prototype.broadcastedBinaryComplexOp=function(s,u,c){var t=so(s.shape,u.shape),l=or(t,"float32"),e=or(t,"float32"),h=this.readSync(s.dataId),f=this.readSync(u.dataId),p=io(s.shape,t),d=io(u.shape,t),v=l.values,m=e.values;if(p.length+d.length===0)for(var n=0;n<v.length;n++){var r=n%h.length,o=n%f.length,i=c(h[2*r],h[2*r+1],f[2*o],f[2*o+1]);v[n]=i.real,m[n]=i.imag}else{var g=this.bufferSync(this.data.get(s.dataId).complexTensors.real),y=this.bufferSync(this.data.get(u.dataId).complexTensors.real),a=function(t){var e=l.indexToLoc(t),n=e.slice(-s.rank);p.forEach(function(t){return n[t]=0});var r=g.locToIndex(n),o=e.slice(-u.rank);d.forEach(function(t){return o[t]=0});var i=y.locToIndex(o),a=c(h[2*r],h[2*r+1],f[2*i],f[2*i+1]);v[t]=a.real,m[t]=a.imag};for(n=0;n<v.length;n++)a(n)}return this.complex(l.toTensor(),e.toTensor())},lh.prototype.split=function(t,e,n){return Do(t,e,n)},lh.prototype.dispose=function(){},lh.prototype.floatPrecision=function(){return 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y=h[d*a+g];v.push(y),m+=y*s[g]}if(m<0||r/o<=m)throw new Error("Invalid indices: "+v+" does not index into "+n);for(var x=0;x<o;x++)c?p.values[m*o+x]+=f[d*o+x]:p.values[m*o+x]=0===e.rank?f[0]:f[d*o+x]}return p.toTensor().reshape(n)},lh);function lh(){var t=uh.call(this)||this;return t.blockSize=48,t.firstUse=!0,t.data=new to(t,Vt),t}Vt.registerBackend("cpu",function(){return new ch},1),n({kernelName:"Square",backendName:"cpu",kernelFunc:function(t){var e=t.inputs,n=t.backend,r=e.x,o=n;ah(r,"square");for(var i=o.data.get(r.dataId).values,a=new Float32Array(i.length),s=0;s<i.length;++s){var u=i[s];a[s]=u*u}return{dataId:o.write(a,r.shape,r.dtype),shape:r.shape,dtype:r.dtype}}}),n({kernelName:"Square",backendName:"webgl",kernelFunc:function(t){var e=t.inputs,n=t.backend,r=e.x,o=n,i=new Ja(r.shape,"return x * x;");return o.runWebGLProgram(i,[r],r.dtype)}});var hh,fh=function(t){this.variableNames=["A"];var e=Lo(),n=t[0],r=t[1];this.outputShape=t,this.userCode="\n      void main() {\n        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t=[this.x,this.y,this.width,this.height].map(function(t){return Math.round(t)});return new Wp({x:t[0],y:t[1],width:t[2],height:t[3]})},Wp.prototype.floor=function(){var t=[this.x,this.y,this.width,this.height].map(function(t){return Math.floor(t)});return new Wp({x:t[0],y:t[1],width:t[2],height:t[3]})},Wp.prototype.toSquare=function(){var t=this.x,e=this.y,n=this.width,r=this.height,o=Math.abs(n-r);return n<r&&(t-=o/2,n+=o),r<n&&(e-=o/2,r+=o),new Wp({x:t,y:e,width:n,height:r})},Wp.prototype.rescale=function(t){var e=Dp(t)?t.width:t,n=Dp(t)?t.height:t;return new Wp({x:this.x*e,y:this.y*n,width:this.width*e,height:this.height*n})},Wp.prototype.pad=function(t,e){var n=[this.x-t/2,this.y-e/2,this.width+t,this.height+e];return new Wp({x:n[0],y:n[1],width:n[2],height:n[3]})},Wp.prototype.clipAtImageBorders=function(t,e){var n=this.x,r=this.y,o=this.right,i=this.bottom,a=Math.max(n,0),s=Math.max(r,0),u=o-a,c=i-s;return new 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i=o?[n.x,n.y,n.width,n.height]:[n.left,n.top,n.right-n.left,n.bottom-n.top],a=i[0],s=i[1],u=i[2],c=i[3];Wp.assertIsValidBox({x:a,y:s,width:u,height:c},"Box.constructor",e),this._x=a,this._y=s,this._width=u,this._height=c}var zp,Up=(vp(Vp,zp=Lp),Vp);function Vp(t,e,n,r,o){return void 0===o&&(o=!1),zp.call(this,{left:t,top:e,right:n,bottom:r},o)||this}var Gp=(Object.defineProperty(Hp.prototype,"score",{get:function(){return this._score},enumerable:!0,configurable:!0}),Object.defineProperty(Hp.prototype,"classScore",{get:function(){return this._classScore},enumerable:!0,configurable:!0}),Object.defineProperty(Hp.prototype,"className",{get:function(){return this._className},enumerable:!0,configurable:!0}),Object.defineProperty(Hp.prototype,"box",{get:function(){return this._box},enumerable:!0,configurable:!0}),Object.defineProperty(Hp.prototype,"imageDims",{get:function(){return this._imageDims},enumerable:!0,configurable:!0}),Object.defineProperty(Hp.prototype,"imageWidth",{get:function(){return this.imageDims.width},enumerable:!0,configurable:!0}),Object.defineProperty(Hp.prototype,"imageHeight",{get:function(){return this.imageDims.height},enumerable:!0,configurable:!0}),Object.defineProperty(Hp.prototype,"relativeBox",{get:function(){return new Lp(this._box).rescale(this.imageDims.reverse())},enumerable:!0,configurable:!0}),Hp.prototype.forSize=function(t,e){return new Hp(this.score,this.classScore,this.className,this.relativeBox,{width:t,height:e})},Hp);function Hp(t,e,n,r,o){this._imageDims=new bp(o.width,o.height),this._score=t,this._classScore=e,this._className=n,this._box=new Lp(r).rescale(this._imageDims)}var qp,jp=(vp(Kp,qp=Gp),Kp.prototype.forSize=function(t,e){var n=qp.prototype.forSize.call(this,t,e);return new Kp(n.score,n.relativeBox,n.imageDims)},Kp);function Kp(t,e,n){return qp.call(this,t,t,"",e,n)||this}function Xp(t,e,n){void 0===n&&(n=!0);var r=Math.max(0,Math.min(t.right,e.right)-Math.max(t.left,e.left))*Math.max(0,Math.min(t.bottom,e.bottom)-Math.max(t.top,e.top));return n?r/(t.area+e.area-r):r/Math.min(t.area,e.area)}function $p(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 Up(r,o,i,a)}function Yp(s,t,u,c){void 0===c&&(c=!0);for(var l=t.map(function(t,e){return{score:t,boxIndex:e}}).sort(function(t,e){return t.score-e.score}).map(function(t){return t.boxIndex}),h=[],e=function(){var t=l.pop();h.push(t);for(var e=l,n=[],r=0;r<e.length;r++){var o=e[r],i=s[t],a=s[o];n.push(Xp(i,a,c))}l=l.filter(function(t,e){return n[e]<=u})};0<l.length;)e();return h}function Jp(s,u){return Je(function(){var 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Error("LabeledFaceDescriptors - constructor expected label to be a string");if(!Array.isArray(e)||e.some(function(t){return!(t instanceof Float32Array)}))throw new Error("LabeledFaceDescriptors - constructor expected descriptors to be an array of Float32Array");this._label=t,this._descriptors=e}var yd,xd,bd=(vp(wd,yd=dd),wd.assertIsValidPredictedBox=function(t,e){if(dd.assertIsValidLabeledBox(t,e),!Mp(t.score)||!Mp(t.classScore))throw new Error(e+" - expected properties score ("+t.score+") and ("+t.classScore+") to be a number between [0, 1]")},Object.defineProperty(wd.prototype,"score",{get:function(){return this._score},enumerable:!0,configurable:!0}),Object.defineProperty(wd.prototype,"classScore",{get:function(){return this._classScore},enumerable:!0,configurable:!0}),wd);function wd(t,e,n,r){var o=yd.call(this,t,e)||this;return o._score=n,o._classScore=r,o}function Cd(t){return t.detection instanceof jp}function Ed(t,e){var n={detection:e};return Object.assign({},t,n)}function 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n=this.options.anchorPosition,r=n===Td.BOTTOM_RIGHT||n===Td.TOP_RIGHT,o=n===Td.BOTTOM_LEFT||n===Td.BOTTOM_RIGHT,i=this.measureWidth(t),a=this.measureHeight(),s=r?this.anchor.x-i:this.anchor.x,u=o?this.anchor.y-a:this.anchor.y;if(e){var c=e.width,l=e.height;return{x:Math.max(Math.min(s,c-i),0),y:Math.max(Math.min(u,l-a),0)}}return{x:s,y:u}},Ld.prototype.draw=function(t){var e=Md(t),o=Od(e),n=this.options,r=n.backgroundColor,i=n.fontColor,a=n.fontSize,s=n.fontStyle,u=n.padding;o.font=a+"px "+s;var c=this.measureWidth(o),l=this.measureHeight();o.fillStyle=r;var h=this.getUpperLeft(o,e);o.fillRect(h.x,h.y,c,l),o.fillStyle=i,this.text.forEach(function(t,e){var n=u+h.x,r=u+h.y+(e+1)*a;o.fillText(t,n,r)})},Ld);function Ld(t,e,n){void 0===n&&(n={}),this.text="string"==typeof t?[t]:t instanceof Ld?t.text:t,this.anchor=e,this.options=new Pd(n)}var Wd=function(t){void 0===t&&(t={});var e=t.boxColor,n=t.lineWidth,r=t.label,o=t.drawLabelOptions;this.boxColor=e||"rgba(0, 0, 255, 1)",this.lineWidth=n||2,this.label=r;var i={anchorPosition:Td.BOTTOM_LEFT,backgroundColor:this.boxColor};this.drawLabelOptions=new Pd(Object.assign({},i,o))},zd=(Ud.prototype.draw=function(t){var e=Od(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 Bd([l],{x:a-o/2,y:s},this.options.drawLabelOptions).draw(t)},Ud);function Ud(t,e){void 0===e&&(e={}),this.box=new Lp(t),this.options=new Wd(e)}function Vd(t){var e=Nd.getEnv(),n=e.Image,r=e.Video;return t instanceof n&&t.complete||t instanceof r&&3<=t.readyState}function Gd(t){return new Promise(function(e,n){if(t instanceof Nd.getEnv().Canvas||Vd(t))return e();function r(t){t.currentTarget&&(t.currentTarget.removeEventListener("load",r),t.currentTarget.removeEventListener("error",o),e(t))}function o(t){t.currentTarget&&(t.currentTarget.removeEventListener("load",r),t.currentTarget.removeEventListener("error",o),n(t))}t.addEventListener("load",r),t.addEventListener("error",o)})}function Hd(t){return new Promise(function(e,n){if(!(t instanceof Blob))return n("bufferToImage - expected buf to be of type: Blob");var r=new FileReader;r.onload=function(){if("string"!=typeof r.result)return n("bufferToImage - expected reader.result to be a string, in onload");var t=Nd.getEnv().createImageElement();t.onload=function(){return e(t)},t.onerror=n,t.src=r.result},r.onerror=n,r.readAsDataURL(t)})}function qd(t){var e=Nd.getEnv(),n=e.Image,r=e.Video;return t instanceof n?new bp(t.naturalWidth,t.naturalHeight):t instanceof r?new bp(t.videoWidth,t.videoHeight):new bp(t.width,t.height)}function jd(t){var e=t.width,n=t.height,r=(0,Nd.getEnv().createCanvasElement)();return r.width=e,r.height=n,r}function Kd(t,e){var n=Nd.getEnv().ImageData;if(!(t instanceof n||Vd(t)))throw new Error("createCanvasFromMedia - media has not finished loading yet");var r=e||qd(t),o=r.width,i=r.height,a=jd({width:o,height:i});return t instanceof n?Od(a).putImageData(t,0,0):Od(a).drawImage(t,0,0,o,i),a}function Xd(s,u){return gp(this,void 0,void 0,function(){var e,n,r,o,i,a;return yp(this,function(t){switch(t.label){case 0:return e=u||Nd.getEnv().createCanvasElement(),n=s.shape.slice(Ip(s)?1:0),r=n[0],o=n[1],i=n[2],a=Je(function(){return s.as3D(r,o,i).toInt()}),[4,Rf.toPixels(a,e)];case 1:return t.sent(),a.dispose(),[2,e]}})})}function $d(t){var e=Nd.getEnv(),n=e.Image,r=e.Canvas,o=e.Video;return t instanceof n||t instanceof r||t instanceof o}function Yd(t,e,n){void 0===n&&(n=!1);var r=Nd.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=qd(t),s=e/Math.max(a.height,a.width),u=s*a.width,c=s*a.height,l=jd({width:e,height:e}),h=t instanceof i?t:Kd(t),f=Math.abs(u-c)/2,p=n&&u<c?f:0,d=n&&c<u?f:0;return Od(l).drawImage(h,p,d,u,c),l}var Jd=(Object.defineProperty(Qd.prototype,"imageTensors",{get:function(){return this._imageTensors},enumerable:!0,configurable:!0}),Object.defineProperty(Qd.prototype,"canvases",{get:function(){return this._canvases},enumerable:!0,configurable:!0}),Object.defineProperty(Qd.prototype,"isBatchInput",{get:function(){return 1<this.batchSize||this._treatAsBatchInput},enumerable:!0,configurable:!0}),Object.defineProperty(Qd.prototype,"batchSize",{get:function(){return this._batchSize},enumerable:!0,configurable:!0}),Object.defineProperty(Qd.prototype,"inputDimensions",{get:function(){return this._inputDimensions},enumerable:!0,configurable:!0}),Object.defineProperty(Qd.prototype,"inputSize",{get:function(){return this._inputSize},enumerable:!0,configurable:!0}),Object.defineProperty(Qd.prototype,"reshapedInputDimensions",{get:function(){var n=this;return Fp(this.batchSize,0,1).map(function(t,e){return n.getReshapedInputDimensions(e)})},enumerable:!0,configurable:!0}),Qd.prototype.getInput=function(t){return this.canvases[t]||this.imageTensors[t]},Qd.prototype.getInputDimensions=function(t){return this._inputDimensions[t]},Qd.prototype.getInputHeight=function(t){return this._inputDimensions[t][0]},Qd.prototype.getInputWidth=function(t){return this._inputDimensions[t][1]},Qd.prototype.getReshapedInputDimensions=function(t){if("number"!=typeof this.inputSize)throw new Error("getReshapedInputDimensions - inputSize not set, toBatchTensor has not been called yet");return Ap({width:this.getInputWidth(t),height:this.getInputHeight(t)},this.inputSize)},Qd.prototype.toBatchTensor=function(r,o){var i=this;return void 0===o&&(o=!0),this._inputSize=r,Je(function(){var t=Fp(i.batchSize,0,1).map(function(t){var e=i.getInput(t);if(e instanceof vt){var n=Ip(e)?e:e.expandDims();return(n=Qp(n,o)).shape[1]===r&&n.shape[2]===r||(n=th.resizeBilinear(n,[r,r])),n.as3D(r,r,3)}if(e instanceof Nd.getEnv().Canvas)return Rf.fromPixels(Yd(e,r,o));throw new Error("toBatchTensor - at batchIdx "+t+", expected input to be instanceof tf.Tensor or instanceof HTMLCanvasElement, instead have "+e)});return Dr(t.map(function(t){return t.toFloat()})).as4D(i.batchSize,r,r,3)})},Qd);function Qd(t,e){var o=this;if(void 0===e&&(e=!1),this._imageTensors=[],this._canvases=[],this._treatAsBatchInput=!1,this._inputDimensions=[],!Array.isArray(t))throw new Error("NetInput.constructor - expected inputs to be an Array of TResolvedNetInput or to be instanceof tf.Tensor4D, instead have "+t);this._treatAsBatchInput=e,this._batchSize=t.length,t.forEach(function(t,e){if(_p(t))return o._imageTensors[e]=t,void(o._inputDimensions[e]=t.shape);if(Ip(t)){var n=t.shape[0];if(1!==n)throw new Error("NetInput - tf.Tensor4D with batchSize "+n+" passed, but not supported in input array");return o._imageTensors[e]=t,void(o._inputDimensions[e]=t.shape.slice(1))}var r=t instanceof Nd.getEnv().Canvas?t:Kd(t);o._canvases[e]=r,o._inputDimensions[e]=[r.height,r.width,3]})}function Zd(n){return gp(this,void 0,void 0,function(){var r,o,e;return yp(this,function(t){switch(t.label){case 0:if(n instanceof Jd)return[2,n];if(!(r=Array.isArray(n)?n:[n]).length)throw new Error("toNetInput - empty array passed as input");return o=function(t){return Array.isArray(n)?" at input index "+t+":":""},(e=r.map(Md)).forEach(function(t,e){if(!$d(t)&&!_p(t)&&!Ip(t)){if("string"==typeof r[e])throw new Error("toNetInput -"+o(e)+" string passed, but could not resolve HTMLElement for element id "+r[e]);throw new Error("toNetInput -"+o(e)+" expected media to be of type HTMLImageElement | HTMLVideoElement | HTMLCanvasElement | tf.Tensor3D, or to be an element id")}if(Ip(t)){var n=t.shape[0];if(1!==n)throw new Error("toNetInput -"+o(e)+" tf.Tensor4D with batchSize "+n+" passed, but not supported in input array")}}),[4,Promise.all(e.map(function(t){return $d(t)&&Gd(t)}))];case 1:return t.sent(),[2,new Jd(e,Array.isArray(n))]}})})}function tv(s,u){return gp(this,void 0,void 0,function(){var e,n,r,o,i,a;return yp(this,function(t){switch(t.label){case 0:return e=Nd.getEnv().Canvas,(n=s)instanceof e?[3,5]:[4,Zd(s)];case 1:if(1<(r=t.sent()).batchSize)throw new Error("extractFaces - batchSize > 1 not supported");return(o=r.getInput(0))instanceof e?(i=o,[3,4]):[3,2];case 2:return[4,Xd(o)];case 3:i=t.sent(),t.label=4;case 4:n=i,t.label=5;case 5:return a=Od(n),[2,u.map(function(t){return t instanceof jp?t.forSize(n.width,n.height).box.floor():t}).map(function(t){return t.clipAtImageBorders(n.width,n.height)}).map(function(t){var e=t.x,n=t.y,r=t.width,o=t.height,i=jd({width:r,height:o});return Od(i).putImageData(a.getImageData(e,n,r,o),0,0),i})]}})})}function ev(u,e){return gp(this,void 0,void 0,function(){return yp(this,function(t){if(!_p(u)&&!Ip(u))throw new Error("extractFaceTensors - expected image tensor to be 3D or 4D");if(Ip(u)&&1<u.shape[0])throw new Error("extractFaceTensors - batchSize > 1 not supported");return[2,Je(function(){var t=u.shape.slice(Ip(u)?1:0),i=t[0],a=t[1],s=t[2];return e.map(function(t){return t instanceof jp?t.forSize(a,i).box:t}).map(function(t){return t.clipAtImageBorders(a,i)}).map(function(t){var e=t.x,n=t.y,r=t.width,o=t.height;return Bc(u.as3D(i,a,s),[n,e,0],[o,r,s])})})]})})}function nv(n,r){return gp(this,void 0,void 0,function(){var e;return yp(this,function(t){switch(t.label){case 0:return[4,(0,Nd.getEnv().fetch)(n,r)];case 1:if(!((e=t.sent()).status<400))throw new Error("failed to fetch: ("+e.status+") "+e.statusText+", from url: "+e.url);return[2,e]}})})}function rv(e){return gp(this,void 0,void 0,function(){return yp(this,function(t){switch(t.label){case 0:return[4,nv(e)];case 1:return[2,t.sent().json()]}})})}function ov(t,e){var n=e+"-weights_manifest.json";if(!t)return{modelBaseUri:"",manifestUri:n};if("/"===t)return{modelBaseUri:"/",manifestUri:"/"+n};var r=t.startsWith("http://")?"http://":t.startsWith("https://")?"https://":"",o=(t=t.replace(r,"")).split("/").filter(function(t){return t}),i=t.endsWith(".json")?o[o.length-1]:n,a=r+(t.endsWith(".json")?o.slice(0,o.length-1):o).join("/");return{modelBaseUri:a=t.startsWith("/")?"/"+a:a,manifestUri:"/"===a?"/"+i:a+"/"+i}}function iv(i,a){return gp(this,void 0,void 0,function(){var e,n,r,o;return yp(this,function(t){switch(t.label){case 0:return e=ov(i,a),n=e.manifestUri,r=e.modelBaseUri,[4,rv(n)];case 1:return o=t.sent(),[2,Cf.loadWeights(o,r)]}})})}var av=(Object.defineProperty(sv.prototype,"params",{get:function(){return this._params},enumerable:!0,configurable:!0}),Object.defineProperty(sv.prototype,"paramMappings",{get:function(){return this._paramMappings},enumerable:!0,configurable:!0}),Object.defineProperty(sv.prototype,"isLoaded",{get:function(){return!!this.params},enumerable:!0,configurable:!0}),sv.prototype.getParamFromPath=function(t){var e=this.traversePropertyPath(t);return e.obj[e.objProp]},sv.prototype.reassignParamFromPath=function(t,e){var n=this.traversePropertyPath(t),r=n.obj,o=n.objProp;r[o].dispose(),r[o]=e},sv.prototype.getParamList=function(){var n=this;return this._paramMappings.map(function(t){var e=t.paramPath;return{path:e,tensor:n.getParamFromPath(e)}})},sv.prototype.getTrainableParams=function(){return this.getParamList().filter(function(t){return t.tensor instanceof St})},sv.prototype.getFrozenParams=function(){return this.getParamList().filter(function(t){return!(t.tensor instanceof St)})},sv.prototype.variable=function(){var r=this;this.getFrozenParams().forEach(function(t){var e=t.path,n=t.tensor;r.reassignParamFromPath(e,n.variable())})},sv.prototype.freeze=function(){var o=this;this.getTrainableParams().forEach(function(t){var e=t.path,n=t.tensor,r=bn(n.dataSync());n.dispose(),o.reassignParamFromPath(e,r)})},sv.prototype.dispose=function(e){void 0===e&&(e=!0),this.getParamList().forEach(function(t){if(e&&t.tensor.isDisposed)throw new Error("param tensor has already been disposed for path "+t.path);t.tensor.dispose()}),this._params=void 0},sv.prototype.serializeParams=function(){return new Float32Array(this.getParamList().map(function(t){var e=t.tensor;return Array.from(e.dataSync())}).reduce(function(t,e){return t.concat(e)}))},sv.prototype.load=function(e){return gp(this,void 0,void 0,function(){return yp(this,function(t){switch(t.label){case 0:return e instanceof Float32Array?(this.extractWeights(e),[2]):[4,this.loadFromUri(e)];case 1:return t.sent(),[2]}})})},sv.prototype.loadFromUri=function(n){return gp(this,void 0,void 0,function(){var e;return yp(this,function(t){switch(t.label){case 0:if(n&&"string"!=typeof n)throw new Error(this._name+".loadFromUri - expected model uri");return[4,iv(n,this.getDefaultModelName())];case 1:return e=t.sent(),this.loadFromWeightMap(e),[2]}})})},sv.prototype.loadFromDisk=function(h){return gp(this,void 0,void 0,function(){var e,n,r,o,i,a,s,u,c,l;return yp(this,function(t){switch(t.label){case 0:if(h&&"string"!=typeof h)throw new Error(this._name+".loadFromDisk - expected model file path");return e=Nd.getEnv().readFile,n=ov(h,this.getDefaultModelName()),r=n.manifestUri,o=n.modelBaseUri,i=function(t){return Promise.all(t.map(function(t){return e(t).then(function(t){return t.buffer})}))},a=Cf.weightsLoaderFactory(i),c=(u=JSON).parse,[4,e(r)];case 1:return s=c.apply(u,[t.sent().toString()]),[4,a(s,o)];case 2:return l=t.sent(),this.loadFromWeightMap(l),[2]}})})},sv.prototype.loadFromWeightMap=function(t){var e=this.extractParamsFromWeigthMap(t),n=e.paramMappings,r=e.params;this._paramMappings=n,this._params=r},sv.prototype.extractWeights=function(t){var e=this.extractParams(t),n=e.paramMappings,r=e.params;this._paramMappings=n,this._params=r},sv.prototype.traversePropertyPath=function(n){if(!this.params)throw new Error("traversePropertyPath - model has no loaded params");var t=n.split("/").reduce(function(t,e){if(!t.nextObj.hasOwnProperty(e))throw new Error("traversePropertyPath - object does not have property "+e+", for path "+n);return{obj:t.nextObj,objProp:e,nextObj:t.nextObj[e]}},{nextObj:this.params}),e=t.obj,r=t.objProp;if(!(e&&r&&e[r]instanceof vt))throw new Error("traversePropertyPath - parameter is not a tensor, for path "+n);return{obj:e,objProp:r}},sv);function sv(t){this._name=t,this._params=void 0,this._paramMappings=[]}function uv(e,n,r){return Je(function(){var t=mc(e,n.depthwise_filter,n.pointwise_filter,r,"same");return t=bu(t,n.bias)})}function cv(r,o,i){return void 0===i&&(i=!1),Je(function(){var t=tl(i?bu(cc(r,o.conv0.filters,[2,2],"same"),o.conv0.bias):uv(r,o.conv0,[2,2])),e=uv(t,o.conv1,[1,1]),n=uv(tl(bu(t,e)),o.conv2,[1,1]);return tl(bu(t,bu(e,n)))})}function lv(o,i,a,s){return void 0===a&&(a=!1),void 0===s&&(s=!0),Je(function(){var t=tl(a?bu(cc(o,i.conv0.filters,s?[2,2]:[1,1],"same"),i.conv0.bias):uv(o,i.conv0,s?[2,2]:[1,1])),e=uv(t,i.conv1,[1,1]),n=uv(tl(bu(t,e)),i.conv2,[1,1]),r=uv(tl(bu(t,bu(e,n))),i.conv3,[1,1]);return tl(bu(t,bu(e,bu(n,r))))})}function hv(e,n,r,o){return void 0===r&&(r="same"),void 0===o&&(o=!1),Je(function(){var t=bu(cc(e,n.filters,[1,1],r),n.bias);return o?tl(t):t})}function fv(t,n){Object.keys(t).forEach(function(e){n.some(function(t){return t.originalPath===e})||t[e].dispose()})}function pv(a,s){return function(t,e,n,r){var o=Rn(a(t*e*n*n),[n,n,t,e]),i=En(a(e));return s.push({paramPath:r+"/filters"},{paramPath:r+"/bias"}),{filters:o,bias:i}}}function dv(i,a){return function(t,e,n){var r=_n(i(t*e),[t,e]),o=En(i(e));return a.push({paramPath:n+"/weights"},{paramPath:n+"/bias"}),{weights:r,bias:o}}}var vv=function(t,e,n){this.depthwise_filter=t,this.pointwise_filter=e,this.bias=n};function mv(a,s){return function(t,e,n){var r=Rn(a(9*t),[3,3,t,1]),o=Rn(a(t*e),[1,1,t,e]),i=En(a(e));return s.push({paramPath:n+"/depthwise_filter"},{paramPath:n+"/pointwise_filter"},{paramPath:n+"/bias"}),new vv(r,o,i)}}function gv(o){return function(t){var e=o(t+"/depthwise_filter",4),n=o(t+"/pointwise_filter",4),r=o(t+"/bias",1);return new vv(e,n,r)}}function yv(o,i){return function(t,e,n){var r=o[t];if(!Cp(r,e))throw new Error("expected weightMap["+t+"] to be a Tensor"+e+"D, instead have "+r);return i.push({originalPath:t,paramPath:n||t}),r}}function xv(t){var n=t;return{extractWeights:function(t){var e=n.slice(0,t);return n=n.slice(t),e},getRemainingWeights:function(){return n}}}function bv(t,e){var o=pv(t,e),i=mv(t,e);function a(t,e,n,r){return void 0===r&&(r=!1),{conv0:r?o(t,e,3,n+"/conv0"):i(t,e,n+"/conv0"),conv1:i(e,e,n+"/conv1"),conv2:i(e,e,n+"/conv2")}}return{extractDenseBlock3Params:a,extractDenseBlock4Params:function(t,e,n,r){void 0===r&&(r=!1);var o=a(t,e,n,r);return{conv0:o.conv0,conv1:o.conv1,conv2:o.conv2,conv3:i(e,e,n+"/conv3")}}}}function wv(e){return function(t){return{filters:e(t+"/filters",4),bias:e(t+"/bias",1)}}}function Cv(t,e){var n=yv(t,e),r=wv(n),o=gv(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 Ev,_v=(vp(Iv,Ev=av),Iv.prototype.forwardInput=function(e){var n=this.params;if(!n)throw new Error("FaceFeatureExtractor - load model before inference");return Je(function(){var t=lv(Jp(e.toBatchTensor(112,!0),[122.782,117.001,104.298]).div(Cn(255)),n.dense0,!0);return t=lv(t=lv(t=lv(t,n.dense1),n.dense2),n.dense3),t=Ac(t,[7,7],[2,2],"valid")})},Iv.prototype.forward=function(n){return gp(this,void 0,void 0,function(){var e;return yp(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,Zd(n)];case 1:return[2,e.apply(this,[t.sent()])]}})})},Iv.prototype.getDefaultModelName=function(){return"face_feature_extractor_model"},Iv.prototype.extractParamsFromWeigthMap=function(t){return function(t){var e=[],n=Cv(t,e).extractDenseBlock4Params,r={dense0:n("dense0",!0),dense1:n("dense1"),dense2:n("dense2"),dense3:n("dense3")};return fv(t,e),{params:r,paramMappings:e}}(t)},Iv.prototype.extractParams=function(t){return function(t){var e=[],n=xv(t),r=n.extractWeights,o=n.getRemainingWeights,i=bv(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)},Iv);function Iv(){return Ev.call(this,"FaceFeatureExtractor")||this}function Rv(t,e){return Je(function(){return bu(xc(t,e.weights),e.bias)})}function kv(e){var n={},r={};return Object.keys(e).forEach(function(t){(t.startsWith("fc")?r:n)[t]=e[t]}),{featureExtractorMap:n,classifierMap:r}}var Sv,Dv=(vp(Av,Sv=av),Object.defineProperty(Av.prototype,"faceFeatureExtractor",{get:function(){return this._faceFeatureExtractor},enumerable:!0,configurable:!0}),Av.prototype.runNet=function(e){var n=this,r=this.params;if(!r)throw new Error(this._name+" - load model before inference");return Je(function(){var t=e instanceof Jd?n.faceFeatureExtractor.forwardInput(e):e;return Rv(t.as2D(t.shape[0],-1),r.fc)})},Av.prototype.dispose=function(t){void 0===t&&(t=!0),this.faceFeatureExtractor.dispose(t),Sv.prototype.dispose.call(this,t)},Av.prototype.loadClassifierParams=function(t){var e=this.extractClassifierParams(t),n=e.params,r=e.paramMappings;this._params=n,this._paramMappings=r},Av.prototype.extractClassifierParams=function(t){return function(t,e,n){var r=[],o=xv(t),i=o.extractWeights,a=o.getRemainingWeights,s=dv(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())},Av.prototype.extractParamsFromWeigthMap=function(t){var e=kv(t),n=e.featureExtractorMap,r=e.classifierMap;return this.faceFeatureExtractor.loadFromWeightMap(n),function(t){var e,n=[],r=yv(t,n),o={fc:(e="fc",{weights:r(e+"/weights",2),bias:r(e+"/bias",1)})};return fv(t,n),{params:o,paramMappings:n}}(r)},Av.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)},Av);function Av(t,e){var n=Sv.call(this,t)||this;return n._faceFeatureExtractor=e,n}var Tv=["neutral","happy","sad","angry","fearful","disgusted","surprised"],Fv=(Nv.prototype.asSortedArray=function(){var e=this;return Tv.map(function(t){return{expression:t,probability:e[t]}}).sort(function(t,e){return e.probability-t.probability})},Nv);function Nv(n){var r=this;if(7!==n.length)throw new Error("FaceExpressions.constructor - expected probabilities.length to be 7, have: "+n.length);Tv.forEach(function(t,e){r[t]=n[e]})}var Mv,Ov=(vp(Pv,Mv=Dv),Pv.prototype.forwardInput=function(t){var e=this;return Je(function(){return Qr(e.runNet(t))})},Pv.prototype.forward=function(n){return gp(this,void 0,void 0,function(){var e;return yp(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,Zd(n)];case 1:return[2,e.apply(this,[t.sent()])]}})})},Pv.prototype.predictExpressions=function(a){return gp(this,void 0,void 0,function(){var e,n,r,o,i=this;return yp(this,function(t){switch(t.label){case 0:return[4,Zd(a)];case 1:return e=t.sent(),[4,this.forwardInput(e)];case 2:return n=t.sent(),[4,Promise.all(Fr(n).map(function(n){return gp(i,void 0,void 0,function(){var e;return yp(this,function(t){switch(t.label){case 0:return[4,n.data()];case 1:return e=t.sent(),n.dispose(),[2,e]}})})}))];case 3:return r=t.sent(),n.dispose(),o=r.map(function(t){return new Fv(t)}),[2,e.isBatchInput?o:o[0]]}})})},Pv.prototype.getDefaultModelName=function(){return"face_expression_model"},Pv.prototype.getClassifierChannelsIn=function(){return 256},Pv.prototype.getClassifierChannelsOut=function(){return 7},Pv);function Pv(t){return void 0===t&&(t=new _v),Mv.call(this,"FaceExpressionNet",t)||this}function Bv(t){return t.expressions instanceof Fv}function Lv(t,e){var n={expressions:e};return Object.assign({},t,n)}function Wv(t){return Cd(t)&&t.landmarks instanceof rd&&t.unshiftedLandmarks instanceof rd&&t.alignedRect instanceof jp}function zv(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 jp(t.detection.score,o.rescale(i.reverse()),i)};return Object.assign({},t,a)}var Uv=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)"},Vv=(Gv.prototype.draw=function(t){var e=Od(t),n=this.options,r=n.drawLines,o=n.drawPoints,i=n.lineWidth,a=n.lineColor,s=n.pointSize,u=n.pointColor;r&&this.faceLandmarks instanceof cd&&(e.strokeStyle=a,e.lineWidth=i,pp(e,this.faceLandmarks.getJawOutline()),pp(e,this.faceLandmarks.getLeftEyeBrow()),pp(e,this.faceLandmarks.getRightEyeBrow()),pp(e,this.faceLandmarks.getNose()),pp(e,this.faceLandmarks.getLeftEye(),!0),pp(e,this.faceLandmarks.getRightEye(),!0),pp(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()}))},Gv);function Gv(t,e){void 0===e&&(e={}),this.faceLandmarks=t,this.options=new Uv(e)}var Hv=Object.freeze({__proto__:null,drawContour:pp,drawDetections:function(o,t){(Array.isArray(t)?t:[t]).forEach(function(t){var e=t instanceof jp?t.score:Cd(t)?t.detection.score:void 0,n=t instanceof jp?t.box:Cd(t)?t.detection.box:new Lp(t),r=e?""+Sp(e):void 0;new zd(n,{label:r}).draw(o)})},drawFaceExpressions:function(o,t,i,a){void 0===i&&(i=.1),(Array.isArray(t)?t:[t]).forEach(function(t){var e=t instanceof Fv?t:Bv(t)?t.expressions:void 0;if(!e)throw new Error("drawFaceExpressions - expected faceExpressions to be FaceExpressions | WithFaceExpressions<{}> or array thereof");var n=e.asSortedArray().filter(function(t){return t.probability>i}),r=Cd(t)?t.detection.box.bottomLeft:a||new Pp(0,0);new Bd(n.map(function(t){return t.expression+" ("+Sp(t.probability)+")"}),r).draw(o)})},DrawBoxOptions:Wd,DrawBox:zd,DrawFaceLandmarksOptions:Uv,DrawFaceLandmarks:Vv,drawFaceLandmarks:function(n,t){(Array.isArray(t)?t:[t]).forEach(function(t){var e=t instanceof rd?t:Wv(t)?t.landmarks:void 0;if(!e)throw new Error("drawFaceLandmarks - expected faceExpressions to be FaceLandmarks | WithFaceLandmarks<WithFaceDetection<{}>> or array thereof");new Vv(e).draw(n)})},get AnchorPosition(){return Td},DrawTextFieldOptions:Pd,DrawTextField:Bd});function qv(t,e){var n=[],r=xv(t),o=r.extractWeights,i=r.getRemainingWeights,a=function(t,e){var r=pv(t,e),o=mv(t,e);return{extractConvParams:r,extractSeparableConvParams:o,extractReductionBlockParams:function(t,e,n){return{separable_conv0:o(t,e,n+"/separable_conv0"),separable_conv1:o(e,e,n+"/separable_conv1"),expansion_conv:r(t,e,1,n+"/expansion_conv")}},extractMainBlockParams:function(t,e){return{separable_conv0:o(t,t,e+"/separable_conv0"),separable_conv1:o(t,t,e+"/separable_conv1"),separable_conv2:o(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")},f={};Fp(e,0,1).forEach(function(t){f["main_block_"+t]=l(128,"middle_flow/main_block_"+t)});var p={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: "+i().length);return{paramMappings:n,params:{entry_flow:h,middle_flow:f,exit_flow:p}}}function jv(t,e){var n=[],r=function(t,e){var n=yv(t,e),r=wv(n),o=gv(n);return{extractConvParams:r,extractSeparableConvParams:o,extractReductionBlockParams:function(t){return{separable_conv0:o(t+"/separable_conv0"),separable_conv1:o(t+"/separable_conv1"),expansion_conv:r(t+"/expansion_conv")}},extractMainBlockParams:function(t){return{separable_conv0:o(t+"/separable_conv0"),separable_conv1:o(t+"/separable_conv1"),separable_conv2:o(t+"/separable_conv2")}}}}(t,n),o=r.extractConvParams,i=r.extractSeparableConvParams,a=r.extractReductionBlockParams,s=r.extractMainBlockParams,u={conv_in:o("entry_flow/conv_in"),reduction_block_0:a("entry_flow/reduction_block_0"),reduction_block_1:a("entry_flow/reduction_block_1")},c={};Fp(e,0,1).forEach(function(t){c["main_block_"+t]=s("middle_flow/main_block_"+t)});var l={reduction_block:a("exit_flow/reduction_block"),separable_conv:i("exit_flow/separable_conv")};return fv(t,n),{params:{entry_flow:u,middle_flow:c,exit_flow:l},paramMappings:n}}function Kv(t,e,n){return bu(cc(t,e.filters,n,"same"),e.bias)}function Xv(t,e,n){void 0===n&&(n=!0);var r=n?tl(t):t;return r=uv(r,e.separable_conv0,[1,1]),r=uv(tl(r),e.separable_conv1,[1,1]),r=Dc(r,[3,3],[2,2],"same"),r=bu(r,Kv(t,e.expansion_conv,[2,2]))}var $v,Yv,Jv=(vp(Qv,$v=av),Qv.prototype.forwardInput=function(n){var r=this,o=this.params;if(!o)throw new Error("TinyXception - load model before inference");return Je(function(){var t=Jp(n.toBatchTensor(112,!0),[122.782,117.001,104.298]).div(Cn(256)),e=tl(Kv(t,o.entry_flow.conv_in,[2,2]));return e=Xv(e=Xv(e,o.entry_flow.reduction_block_0,!1),o.entry_flow.reduction_block_1),Fp(r._numMainBlocks,0,1).forEach(function(t){e=function(t,e){var n=uv(tl(t),e.separable_conv0,[1,1]);return n=uv(tl(n),e.separable_conv1,[1,1]),n=uv(tl(n),e.separable_conv2,[1,1]),n=bu(n,t)}(e,o.middle_flow["main_block_"+t])}),e=Xv(e,o.exit_flow.reduction_block),e=tl(uv(e,o.exit_flow.separable_conv,[1,1]))})},Qv.prototype.forward=function(n){return gp(this,void 0,void 0,function(){var e;return yp(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,Zd(n)];case 1:return[2,e.apply(this,[t.sent()])]}})})},Qv.prototype.getDefaultModelName=function(){return"tiny_xception_model"},Qv.prototype.extractParamsFromWeigthMap=function(t){return jv(t,this._numMainBlocks)},Qv.prototype.extractParams=function(t){return qv(t,this._numMainBlocks)},Qv);function Qv(t){var e=$v.call(this,"TinyXception")||this;return e._numMainBlocks=t,e}(Yv=c.Gender||(c.Gender={})).FEMALE="female",Yv.MALE="male";var Zv,tm=(vp(em,Zv=av),Object.defineProperty(em.prototype,"faceFeatureExtractor",{get:function(){return this._faceFeatureExtractor},enumerable:!0,configurable:!0}),em.prototype.runNet=function(n){var r=this,o=this.params;if(!o)throw new Error(this._name+" - load model before inference");return Je(function(){var t=n instanceof Jd?r.faceFeatureExtractor.forwardInput(n):n,e=Ac(t,[7,7],[2,2],"valid").as2D(t.shape[0],-1);return{age:Rv(e,o.fc.age).as1D(),gender:Rv(e,o.fc.gender)}})},em.prototype.forwardInput=function(r){var o=this;return Je(function(){var t=o.runNet(r),e=t.age,n=t.gender;return{age:e,gender:Qr(n)}})},em.prototype.forward=function(n){return gp(this,void 0,void 0,function(){var e;return yp(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,Zd(n)];case 1:return[2,e.apply(this,[t.sent()])]}})})},em.prototype.predictAgeAndGender=function(s){return gp(this,void 0,void 0,function(){var e,n,r,o,i,a,u=this;return yp(this,function(t){switch(t.label){case 0:return[4,Zd(s)];case 1:return e=t.sent(),[4,this.forwardInput(e)];case 2:return n=t.sent(),r=Fr(n.age),o=Fr(n.gender),i=r.map(function(t,e){return{ageTensor:t,genderTensor:o[e]}}),[4,Promise.all(i.map(function(t){var a=t.ageTensor,s=t.genderTensor;return gp(u,void 0,void 0,function(){var e,n,r,o,i;return yp(this,function(t){switch(t.label){case 0:return[4,a.data()];case 1:return e=t.sent()[0],[4,s.data()];case 2:return n=t.sent()[0],o=(r=.5<n)?c.Gender.MALE:c.Gender.FEMALE,i=r?n:1-n,a.dispose(),s.dispose(),[2,{age:e,gender:o,genderProbability:i}]}})})}))];case 3:return a=t.sent(),n.age.dispose(),n.gender.dispose(),[2,e.isBatchInput?a:a[0]]}})})},em.prototype.getDefaultModelName=function(){return"age_gender_model"},em.prototype.dispose=function(t){void 0===t&&(t=!0),this.faceFeatureExtractor.dispose(t),Zv.prototype.dispose.call(this,t)},em.prototype.loadClassifierParams=function(t){var e=this.extractClassifierParams(t),n=e.params,r=e.paramMappings;this._params=n,this._paramMappings=r},em.prototype.extractClassifierParams=function(t){return function(t){var e=[],n=xv(t),r=n.extractWeights,o=n.getRemainingWeights,i=dv(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)},em.prototype.extractParamsFromWeigthMap=function(t){var e=kv(t),n=e.featureExtractorMap,r=e.classifierMap;return this.faceFeatureExtractor.loadFromWeightMap(n),function(t){var e=[],n=yv(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 fv(t,e),{params:o,paramMappings:e}}(r)},em.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)},em);function em(t){void 0===t&&(t=new Jv(2));var e=Zv.call(this,"AgeGenderNet")||this;return e._faceFeatureExtractor=t,e}var nm,rm=(vp(om,nm=Dv),om.prototype.postProcess=function(t,o,e){var i=e.map(function(t){var e=t.width,n=t.height,r=o/Math.max(n,e);return{width:e*r,height:n*r}}),a=i.length;return Je(function(){function n(t,e){return Dr([Fn([68],t),Fn([68],e)],1).as2D(1,136).as1D()}function r(t,e){var n=i[t],r=n.width,o=n.height;return e(r,o)?Math.abs(r-o)/2:0}return t.mul(Fn([a,136],o)).sub(Dr(Array.from(Array(a),function(t,e){return n(function(t){return r(t,function(t,e){return t<e})}(e),function(t){return r(t,function(t,e){return e<t})}(e))}))).div(Dr(Array.from(Array(a),function(t,e){return n(i[e].width,i[e].height)})))})},om.prototype.forwardInput=function(e){var n=this;return Je(function(){var t=n.runNet(e);return n.postProcess(t,e.inputSize,e.inputDimensions.map(function(t){return{height:t[0],width:t[1]}}))})},om.prototype.forward=function(n){return gp(this,void 0,void 0,function(){var e;return yp(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,Zd(n)];case 1:return[2,e.apply(this,[t.sent()])]}})})},om.prototype.detectLandmarks=function(o){return gp(this,void 0,void 0,function(){var u,e,n,r=this;return yp(this,function(t){switch(t.label){case 0:return[4,Zd(o)];case 1:return u=t.sent(),e=Je(function(){return Fr(r.forwardInput(u))}),[4,Promise.all(e.map(function(a,s){return gp(r,void 0,void 0,function(){var e,n,r,o,i;return yp(this,function(t){switch(t.label){case 0:return r=(n=Array).from,[4,a.data()];case 1:return e=r.apply(n,[t.sent()]),o=e.filter(function(t,e){return kp(e)}),i=e.filter(function(t,e){return!kp(e)}),[2,new cd(Array(68).fill(0).map(function(t,e){return new Pp(o[e],i[e])}),{height:u.getInputHeight(s),width:u.getInputWidth(s)})]}})})}))];case 2:return n=t.sent(),e.forEach(function(t){return t.dispose()}),[2,u.isBatchInput?n:n[0]]}})})},om.prototype.getClassifierChannelsOut=function(){return 136},om);function om(){return null!==nm&&nm.apply(this,arguments)||this}var im,am=(vp(sm,im=rm),sm.prototype.getDefaultModelName=function(){return"face_landmark_68_model"},sm.prototype.getClassifierChannelsIn=function(){return 256},sm);function sm(t){return void 0===t&&(t=new _v),im.call(this,"FaceLandmark68Net",t)||this}var um,cm=(vp(lm,um=av),lm.prototype.forwardInput=function(e){var n=this.params;if(!n)throw new Error("TinyFaceFeatureExtractor - load model before inference");return Je(function(){var t=cv(Jp(e.toBatchTensor(112,!0),[122.782,117.001,104.298]).div(Cn(255)),n.dense0,!0);return t=cv(t=cv(t,n.dense1),n.dense2),t=Ac(t,[14,14],[2,2],"valid")})},lm.prototype.forward=function(n){return gp(this,void 0,void 0,function(){var e;return yp(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,Zd(n)];case 1:return[2,e.apply(this,[t.sent()])]}})})},lm.prototype.getDefaultModelName=function(){return"face_feature_extractor_tiny_model"},lm.prototype.extractParamsFromWeigthMap=function(t){return function(t){var e=[],n=Cv(t,e).extractDenseBlock3Params,r={dense0:n("dense0",!0),dense1:n("dense1"),dense2:n("dense2")};return fv(t,e),{params:r,paramMappings:e}}(t)},lm.prototype.extractParams=function(t){return function(t){var e=[],n=xv(t),r=n.extractWeights,o=n.getRemainingWeights,i=bv(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)},lm);function lm(){return um.call(this,"TinyFaceFeatureExtractor")||this}var hm,fm=(vp(pm,hm=rm),pm.prototype.getDefaultModelName=function(){return"face_landmark_68_tiny_model"},pm.prototype.getClassifierChannelsIn=function(){return 128},pm);function pm(t){return void 0===t&&(t=new cm),hm.call(this,"FaceLandmark68TinyNet",t)||this}var dm,vm=(vp(mm,dm=am),mm);function mm(){return null!==dm&&dm.apply(this,arguments)||this}function gm(t,e,n,r,o){void 0===o&&(o="same");var i=e.conv,a=i.filters,s=i.bias,u=cc(t,a,n,o);return u=function(t,e){return bu(Mu(t,e.weights),e.biases)}(u=bu(u,s),e.scale),r?tl(u):u}function ym(t,e){return gm(t,e,[1,1],!1)}function xm(t,e){return gm(t,e,[2,2],!0,"valid")}function bm(a,s){function o(t,e,n,r){var o=function(t,e,n){var r=a(t),o=r.length/(e*n*n);if(Rp(o))throw new Error("depth has to be an integer: "+o+", weights.length: "+r.length+", numFilters: "+e+", filterSize: "+n);return Je(function(){return rl(Rn(r,[e,o,n,n]),[2,3,1,0])})}(t,e,n),i=En(a(e));return s.push({paramPath:r+"/filters"},{paramPath:r+"/bias"}),{filters:o,bias:i}}function i(t,e,n,r){return{conv:o(t,e,n,r+"/conv"),scale:function(t,e){var n=En(a(t)),r=En(a(t));return s.push({paramPath:e+"/weights"},{paramPath:e+"/biases"}),{weights:n,biases:r}}(e,r+"/scale")}}return{extractConvLayerParams:i,extractResidualLayerParams:function(t,e,n,r,o){return void 0===o&&(o=!1),{conv1:i((o?.5:1)*t,e,n,r+"/conv1"),conv2:i(t,e,n,r+"/conv2")}}}}function wm(t,e){var n=yv(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 Cm(t,e){var n=function(t,e){return gm(t,e,[1,1],!0)}(t,e.conv1);return n=ym(n,e.conv2),n=bu(n,t),n=tl(n)}function Em(t,e){var n=xm(t,e.conv1);n=ym(n,e.conv2);var r=Ac(t,2,2,"valid"),o=Tn(r.shape),i=r.shape[3]!==n.shape[3];if(r.shape[1]!==n.shape[1]||r.shape[2]!==n.shape[2]){var a=xp(n.shape);a[1]=1;var s=Tn(a),u=xp((n=Bn([n,s],1)).shape);u[2]=1;var c=Tn(u);n=Bn([n,c],2)}return r=i?Bn([r,o],3):r,n=bu(r,n),n=tl(n)}var _m,Im=(vp(Rm,_m=av),Rm.prototype.forwardInput=function(n){var r=this.params;if(!r)throw new Error("FaceRecognitionNet - load model before inference");return Je(function(){var t=xm(Jp(n.toBatchTensor(150,!0).toFloat(),[122.782,117.001,104.298]).div(Cn(256)),r.conv32_down),e=(t=Em(t=Cm(t=Cm(t=Em(t=Cm(t=Cm(t=Em(t=Cm(t=Cm(t=Cm(t=Em(t=Cm(t=Cm(t=Cm(t=Dc(t,3,2,"valid"),r.conv32_1),r.conv32_2),r.conv32_3),r.conv64_down),r.conv64_1),r.conv64_2),r.conv64_3),r.conv128_down),r.conv128_1),r.conv128_2),r.conv256_down),r.conv256_1),r.conv256_2),r.conv256_down_out)).mean([1,2]);return xc(e,r.fc)})},Rm.prototype.forward=function(n){return gp(this,void 0,void 0,function(){var e;return yp(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,Zd(n)];case 1:return[2,e.apply(this,[t.sent()])]}})})},Rm.prototype.computeFaceDescriptor=function(i){return gp(this,void 0,void 0,function(){var e,n,r,o=this;return yp(this,function(t){switch(t.label){case 0:return[4,Zd(i)];case 1:return e=t.sent(),n=Je(function(){return Fr(o.forwardInput(e))}),[4,Promise.all(n.map(function(t){return t.data()}))];case 2:return r=t.sent(),n.forEach(function(t){return t.dispose()}),[2,e.isBatchInput?r:r[0]]}})})},Rm.prototype.getDefaultModelName=function(){return"face_recognition_model"},Rm.prototype.extractParamsFromWeigthMap=function(t){return function(t){var e=[],n=wm(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"),f=o("conv64_3"),p=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"}),!Ep(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:f,conv128_down:p,conv128_1:d,conv128_2:v,conv256_down:m,conv256_1:g,conv256_2:y,conv256_down_out:x,fc:b};return fv(t,e),{params:w,paramMappings:e}}(t)},Rm.prototype.extractParams=function(t){return function(t){var e=xv(t),n=e.extractWeights,r=e.getRemainingWeights,o=[],i=bm(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"),f=s(36864,64,3,"conv64_down",!0),p=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=Je(function(){return rl(_n(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:f,conv64_1:p,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)},Rm);function Rm(){return _m.call(this,"FaceRecognitionNet")||this}function km(t,e){var n={descriptor:e};return Object.assign({},t,n)}function Sm(t,e){var n={age:e};return Object.assign({},t,n)}function Dm(t,e,n){var r={gender:e,genderProbability:n};return Object.assign({},t,r)}var Am=(Object.defineProperty(Tm.prototype,"minFaceSize",{get:function(){return this._minFaceSize},enumerable:!0,configurable:!0}),Object.defineProperty(Tm.prototype,"scaleFactor",{get:function(){return this._scaleFactor},enumerable:!0,configurable:!0}),Object.defineProperty(Tm.prototype,"maxNumScales",{get:function(){return this._maxNumScales},enumerable:!0,configurable:!0}),Object.defineProperty(Tm.prototype,"scoreThresholds",{get:function(){return this._scoreThresholds},enumerable:!0,configurable:!0}),Object.defineProperty(Tm.prototype,"scaleSteps",{get:function(){return this._scaleSteps},enumerable:!0,configurable:!0}),Tm);function Tm(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||1<=this._scaleFactor)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")}function Fm(s,u){function i(t,e,n,r,o){var i=Rn(s(t*e*n*n),[n,n,t,e]),a=En(s(e));return u.push({paramPath:r+"/filters"},{paramPath:r+"/"+(o?"batch_norm_offset":"bias")}),{filters:i,bias:a}}function r(t,e,n,r){var o=i(t,e,n,r,!0);return{filters:o.filters,batch_norm_offset:o.bias}}function t(t,e,n){return{depthwise_conv:function(t,e){var n=Rn(s(9*t),[3,3,t,1]),r=En(s(t)),o=En(s(t)),i=En(s(t)),a=En(s(t));return u.push({paramPath:e+"/filters"},{paramPath:e+"/batch_norm_scale"},{paramPath:e+"/batch_norm_offset"},{paramPath:e+"/batch_norm_mean"},{paramPath:e+"/batch_norm_variance"}),{filters:n,batch_norm_scale:r,batch_norm_offset:o,batch_norm_mean:i,batch_norm_variance:a}}(t,n+"/depthwise_conv"),pointwise_conv:r(t,e,1,n+"/pointwise_conv")}}return{extractMobilenetV1Params:function(){return{conv_0:r(3,32,3,"mobilenetv1/conv_0"),conv_1:t(32,64,"mobilenetv1/conv_1"),conv_2:t(64,128,"mobilenetv1/conv_2"),conv_3:t(128,128,"mobilenetv1/conv_3"),conv_4:t(128,256,"mobilenetv1/conv_4"),conv_5:t(256,256,"mobilenetv1/conv_5"),conv_6:t(256,512,"mobilenetv1/conv_6"),conv_7:t(512,512,"mobilenetv1/conv_7"),conv_8:t(512,512,"mobilenetv1/conv_8"),conv_9:t(512,512,"mobilenetv1/conv_9"),conv_10:t(512,512,"mobilenetv1/conv_10"),conv_11:t(512,512,"mobilenetv1/conv_11"),conv_12:t(512,1024,"mobilenetv1/conv_12"),conv_13:t(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:i(512,12,1,"prediction_layer/box_predictor_0/box_encoding_predictor"),class_predictor:i(512,9,1,"prediction_layer/box_predictor_0/class_predictor")},box_predictor_1:{box_encoding_predictor:i(1024,24,1,"prediction_layer/box_predictor_1/box_encoding_predictor"),class_predictor:i(1024,18,1,"prediction_layer/box_predictor_1/class_predictor")},box_predictor_2:{box_encoding_predictor:i(512,24,1,"prediction_layer/box_predictor_2/box_encoding_predictor"),class_predictor:i(512,18,1,"prediction_layer/box_predictor_2/class_predictor")},box_predictor_3:{box_encoding_predictor:i(256,24,1,"prediction_layer/box_predictor_3/box_encoding_predictor"),class_predictor:i(256,18,1,"prediction_layer/box_predictor_3/class_predictor")},box_predictor_4:{box_encoding_predictor:i(256,24,1,"prediction_layer/box_predictor_4/box_encoding_predictor"),class_predictor:i(256,18,1,"prediction_layer/box_predictor_4/class_predictor")},box_predictor_5:{box_encoding_predictor:i(128,24,1,"prediction_layer/box_predictor_5/box_encoding_predictor"),class_predictor:i(128,18,1,"prediction_layer/box_predictor_5/class_predictor")}}}}}function Nm(t){var e=[],n=function(t,e){var i=yv(t,e);function a(t,e,n){return{filters:i(t+"/Conv2d_"+e+"_pointwise/weights",4,n+"/filters"),batch_norm_offset:i(t+"/Conv2d_"+e+"_pointwise/convolution_bn_offset",1,n+"/batch_norm_offset")}}function n(t){var e="mobilenetv1/conv_"+t,n="MobilenetV1/Conv2d_"+t+"_depthwise",r=e+"/depthwise_conv",o=e+"/pointwise_conv";return{depthwise_conv:{filters:i(n+"/depthwise_weights",4,r+"/filters"),batch_norm_scale:i(n+"/BatchNorm/gamma",1,r+"/batch_norm_scale"),batch_norm_offset:i(n+"/BatchNorm/beta",1,r+"/batch_norm_offset"),batch_norm_mean:i(n+"/BatchNorm/moving_mean",1,r+"/batch_norm_mean"),batch_norm_variance:i(n+"/BatchNorm/moving_variance",1,r+"/batch_norm_variance")},pointwise_conv:a("MobilenetV1",t,o)}}function r(t,e){return{filters:i(t+"/weights",4,e+"/filters"),bias:i(t+"/biases",1,e+"/bias")}}function o(t){return{box_encoding_predictor:r("Prediction/BoxPredictor_"+t+"/BoxEncodingPredictor","prediction_layer/box_predictor_"+t+"/box_encoding_predictor"),class_predictor:r("Prediction/BoxPredictor_"+t+"/ClassPredictor","prediction_layer/box_predictor_"+t+"/class_predictor")}}return{extractMobilenetV1Params:function(){return{conv_0:a("MobilenetV1",0,"mobilenetv1/conv_0"),conv_1:n(1),conv_2:n(2),conv_3:n(3),conv_4:n(4),conv_5:n(5),conv_6:n(6),conv_7:n(7),conv_8:n(8),conv_9:n(9),conv_10:n(10),conv_11:n(11),conv_12:n(12),conv_13:n(13)}},extractPredictionLayerParams:function(){return{conv_0:a("Prediction",0,"prediction_layer/conv_0"),conv_1:a("Prediction",1,"prediction_layer/conv_1"),conv_2:a("Prediction",2,"prediction_layer/conv_2"),conv_3:a("Prediction",3,"prediction_layer/conv_3"),conv_4:a("Prediction",4,"prediction_layer/conv_4"),conv_5:a("Prediction",5,"prediction_layer/conv_5"),conv_6:a("Prediction",6,"prediction_layer/conv_6"),conv_7:a("Prediction",7,"prediction_layer/conv_7"),box_predictor_0:o(0),box_predictor_1:o(1),box_predictor_2:o(2),box_predictor_3:o(3),box_predictor_4:o(4),box_predictor_5:o(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"}),!_p(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 fv(t,e),{params:a,paramMappings:e}}function Mm(e,n,r){return Je(function(){var t=cc(e,n.filters,r,"same");return t=bu(t,n.batch_norm_offset),Ss(t,0,6)})}var Om=.0010000000474974513;function Pm(t,e){return Je(function(){var o=null,i=Mm(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 n=e+1,r=function(e){return[2,4,6,12].some(function(t){return t===e})?[2,2]:[1,1]}(n);i=Mm(i=function(e,n,r){return Je(function(){var t=pc(e,n.filters,r,"same");return t=hu(t,n.batch_norm_mean,n.batch_norm_variance,n.batch_norm_offset,n.batch_norm_scale,Om),Ss(t,0,6)})}(i,t.depthwise_conv,r),t.pointwise_conv,[1,1]),11===n&&(o=i)}),null===o)throw new Error("mobileNetV1 - output of conv layer 11 is null");return{out:i,conv11:o}})}function Bm(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]),f=(a-o)*(s-i),p=(l-u)*(h-c);if(f<=0||p<=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/(f+p-y)}function Lm(t,e){var n=function(t){var e=Fr(rl(t,[1,0])),n=[zu(e[2],e[0]),zu(e[3],e[1])];return{sizes:n,centers:[bu(e[0],_u(n[0],Cn(2))),bu(e[1],_u(n[1],Cn(2)))]}}(t),r=n.sizes,o=n.centers,i=Fr(rl(e,[1,0])),a=_u(Mu(Fs(_u(i[2],Cn(5))),r[0]),Cn(2)),s=bu(Mu(_u(i[0],Cn(10)),r[0]),o[0]),u=_u(Mu(Fs(_u(i[3],Cn(5))),r[1]),Cn(2)),c=bu(Mu(_u(i[1],Cn(10)),r[1]),o[1]);return rl(Dr([zu(s,a),zu(c,u),bu(s,a),bu(c,u)]),[1,0])}function Wm(e,n){return Je(function(){var t=e.shape[0];return{boxPredictionEncoding:Rr(hv(e,n.box_encoding_predictor),[t,-1,1,4]),classPrediction:Rr(hv(e,n.class_predictor),[t,-1,3])}})}var zm=(Object.defineProperty(Um.prototype,"minConfidence",{get:function(){return this._minConfidence},enumerable:!0,configurable:!0}),Object.defineProperty(Um.prototype,"maxResults",{get:function(){return this._maxResults},enumerable:!0,configurable:!0}),Um);function Um(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||1<=this._minConfidence)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")}var Vm,Gm=(vp(Hm,Vm=av),Hm.prototype.forwardInput=function(r){var o=this.params;if(!o)throw new Error("SsdMobilenetv1 - load model before inference");return Je(function(){var t=r.toBatchTensor(512,!1).toFloat(),e=Pm(zu(Mu(t,Cn(.007843137718737125)),Cn(1)),o.mobilenetv1),n=function(l,h,f){return Je(function(){var t=Mm(Mm(l,f.conv_0,[1,1]),f.conv_1,[2,2]),e=Mm(Mm(t,f.conv_2,[1,1]),f.conv_3,[2,2]),n=Mm(Mm(e,f.conv_4,[1,1]),f.conv_5,[2,2]),r=Mm(Mm(n,f.conv_6,[1,1]),f.conv_7,[2,2]),o=Wm(h,f.box_predictor_0),i=Wm(l,f.box_predictor_1),a=Wm(t,f.box_predictor_2),s=Wm(e,f.box_predictor_3),u=Wm(n,f.box_predictor_4),c=Wm(r,f.box_predictor_5);return{boxPredictions:Bn([o.boxPredictionEncoding,i.boxPredictionEncoding,a.boxPredictionEncoding,s.boxPredictionEncoding,u.boxPredictionEncoding,c.boxPredictionEncoding],1),classPredictions:Bn([o.classPrediction,i.classPrediction,a.classPrediction,s.classPrediction,u.classPrediction,c.classPrediction],1)}})}(e.out,e.conv11,o.prediction_layer);return function(o,i,a){return Je(function(){var t=o.shape[0],e=Lm(Rr(Ar(a.extra_dim,[t,1,1]),[-1,4]),Rr(o,[-1,4]));e=Rr(e,[t,e.shape[0]/t,4]);var n=Vs(Mc(i,[0,0,1],[-1,-1,-1])),r=Mc(n,[0,0,0],[-1,-1,1]);return r=Rr(r,[t,r.shape[1]]),{boxes:Fr(e),scores:Fr(r)}})}(n.boxPredictions,n.classPredictions,o.output_layer)})},Hm.prototype.forward=function(n){return gp(this,void 0,void 0,function(){var e;return yp(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,Zd(n)];case 1:return[2,e.apply(this,[t.sent()])]}})})},Hm.prototype.locateFaces=function(w,C){return void 0===C&&(C={}),gp(this,void 0,void 0,function(){var e,n,r,s,o,i,a,u,c,l,h,f,p,d,v,m,g,y,x,b;return yp(this,function(t){switch(t.label){case 0:return e=new zm(C),n=e.maxResults,r=e.minConfidence,[4,Zd(w)];case 1:for(s=t.sent(),o=this.forwardInput(s),i=o.boxes,a=o.scores,u=i[0],c=a[0],l=1;l<i.length;l++)i[l].dispose(),a[l].dispose();return p=(f=Array).from,[4,c.data()];case 2:return h=p.apply(f,[t.sent()]),d=function(o,t,e,i,a){var n=o.shape[0],s=Math.min(e,n),r=t.map(function(t,e){return{score:t,boxIndex:e}}).filter(function(t){return t.score>a}).sort(function(t,e){return e.score-t.score}),u=[];return r.forEach(function(t){if(!(u.length>=s)){for(var e=t.score,n=u.length-1;0<=n;--n){var r=Bm(o,t.boxIndex,u[n]);if(0!==r&&(t.score*=r<=i?1:0,t.score<=a))break}e===t.score&&u.push(t.boxIndex)}}),u}(u,h,n,.5,r),v=s.getReshapedInputDimensions(0),m=s.inputSize,g=m/v.width,y=m/v.height,x=u.arraySync(),b=d.map(function(t){var e=[Math.max(0,x[t][0]),Math.min(1,x[t][2])].map(function(t){return t*y}),n=e[0],r=e[1],o=[Math.max(0,x[t][1]),Math.min(1,x[t][3])].map(function(t){return t*g}),i=o[0],a=o[1];return new jp(h[t],new ed(i,n,a-i,r-n),{height:s.getInputHeight(0),width:s.getInputWidth(0)})}),u.dispose(),c.dispose(),[2,b]}})})},Hm.prototype.getDefaultModelName=function(){return"ssd_mobilenetv1_model"},Hm.prototype.extractParamsFromWeigthMap=function(t){return Nm(t)},Hm.prototype.extractParams=function(t){return function(t){var e=[],n=xv(t),r=n.extractWeights,o=n.getRemainingWeights,i=Fm(r,e),a=i.extractMobilenetV1Params,s=i.extractPredictionLayerParams,u=a(),c=s(),l={extra_dim:In(r(20472),[1,5118,4])};if(e.push({paramPath:"output_layer/extra_dim"}),0!==o().length)throw new Error("weights remaing after extract: "+o().length);return{params:{mobilenetv1:u,prediction_layer:c,output_layer:l},paramMappings:e}}(t)},Hm);function Hm(){return Vm.call(this,"SsdMobilenetv1")||this}function qm(t){var e=new Gm;return e.extractWeights(t),e}var jm,Km=(vp(Xm,jm=Gm),Xm);function Xm(){return null!==jm&&jm.apply(this,arguments)||this}var $m,Ym=[new Pp(.738768,.874946),new Pp(2.42204,2.65704),new Pp(4.30971,7.04493),new Pp(10.246,4.59428),new Pp(12.6868,11.8741)],Jm=[new Pp(1.603231,2.094468),new Pp(6.041143,7.080126),new Pp(2.882459,3.518061),new Pp(4.266906,5.178857),new Pp(9.041765,10.66308)],Qm=[117.001,114.697,97.404],Zm=function(t){return"number"==typeof t};function tg(t){if(!t)throw new Error("invalid config: "+t);if("boolean"!=typeof t.withSeparableConvs)throw new Error("config.withSeparableConvs has to be a boolean, have: "+t.withSeparableConvs);if(!Zm(t.iouThreshold)||t.iouThreshold<0||1<t.iouThreshold)throw new Error("config.iouThreshold has to be a number between [0, 1], have: "+t.iouThreshold);if(!Array.isArray(t.classes)||!t.classes.length||!t.classes.every(function(t){return"string"==typeof t}))throw new Error("config.classes has to be an array class names: string[], have: "+JSON.stringify(t.classes));if(!Array.isArray(t.anchors)||!t.anchors.length||!t.anchors.map(function(t){return t||{}}).every(function(t){return Zm(t.x)&&Zm(t.y)}))throw new Error("config.anchors has to be an array of { x: number, y: number }, have: "+JSON.stringify(t.anchors));if(t.meanRgb&&(!Array.isArray(t.meanRgb)||3!==t.meanRgb.length||!t.meanRgb.every(Zm)))throw new Error("config.meanRgb has to be an array of shape [number, number, number], have: "+JSON.stringify(t.meanRgb))}function eg(e){return Je(function(){var t=Mu(e,Cn(.10000000149011612));return bu(tl(zu(e,t)),t)})}function ng(e,n){return Je(function(){var t=gr(e,[[0,0],[1,1],[1,1],[0,0]]);return t=cc(t,n.conv.filters,[1,1],"valid"),t=zu(t,n.bn.sub),t=Mu(t,n.bn.truediv),eg(t=bu(t,n.conv.bias))})}function rg(e,n){return Je(function(){var t=gr(e,[[0,0],[1,1],[1,1],[0,0]]);return t=mc(t,n.depthwise_filter,n.pointwise_filter,[1,1],"valid"),eg(t=bu(t,n.bias))})}function og(o,i){var r=pv(o,i);var t=mv(o,i);return{extractConvParams:r,extractConvWithBatchNormParams:function(t,e,n){return{conv:r(t,e,3,n+"/conv"),bn:function(t,e){var n=En(o(t)),r=En(o(t));return i.push({paramPath:e+"/sub"},{paramPath:e+"/truediv"}),{sub:n,truediv:r}}(e,n+"/bn")}},extractSeparableConvParams:t}}function ig(t,e){var n=yv(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:gv(n)}}($m=c.TinyYolov2SizeType||(c.TinyYolov2SizeType={}))[$m.XS=224]="XS",$m[$m.SM=320]="SM",$m[$m.MD=416]="MD",$m[$m.LG=608]="LG";var ag=(Object.defineProperty(sg.prototype,"inputSize",{get:function(){return this._inputSize},enumerable:!0,configurable:!0}),Object.defineProperty(sg.prototype,"scoreThreshold",{get:function(){return this._scoreThreshold},enumerable:!0,configurable:!0}),sg);function sg(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||1<=this._scoreThreshold)throw new Error(this._name+" - expected scoreThreshold to be a number between 0 and 1")}var ug,cg=(vp(lg,ug=av),Object.defineProperty(lg.prototype,"config",{get:function(){return this._config},enumerable:!0,configurable:!0}),Object.defineProperty(lg.prototype,"withClassScores",{get:function(){return this.config.withClassScores||1<this.config.classes.length},enumerable:!0,configurable:!0}),Object.defineProperty(lg.prototype,"boxEncodingSize",{get:function(){return 5+(this.withClassScores?this.config.classes.length:0)},enumerable:!0,configurable:!0}),lg.prototype.runTinyYolov2=function(t,e){var n=ng(t,e.conv0);return n=ng(n=Dc(n,[2,2],[2,2],"same"),e.conv1),n=ng(n=Dc(n,[2,2],[2,2],"same"),e.conv2),n=ng(n=Dc(n,[2,2],[2,2],"same"),e.conv3),n=ng(n=Dc(n,[2,2],[2,2],"same"),e.conv4),n=ng(n=Dc(n,[2,2],[2,2],"same"),e.conv5),hv(n=ng(n=ng(n=Dc(n,[2,2],[1,1],"same"),e.conv6),e.conv7),e.conv8,"valid",!1)},lg.prototype.runMobilenet=function(t,e){var n=this.config.isFirstLayerConv2d?eg(hv(t,e.conv0,"valid",!1)):rg(t,e.conv0);return n=rg(n=Dc(n,[2,2],[2,2],"same"),e.conv1),n=rg(n=Dc(n,[2,2],[2,2],"same"),e.conv2),n=rg(n=Dc(n,[2,2],[2,2],"same"),e.conv3),n=rg(n=Dc(n,[2,2],[2,2],"same"),e.conv4),n=rg(n=Dc(n,[2,2],[2,2],"same"),e.conv5),n=Dc(n,[2,2],[1,1],"same"),n=e.conv6?rg(n,e.conv6):n,hv(n=e.conv7?rg(n,e.conv7):n,e.conv8,"valid",!1)},lg.prototype.forwardInput=function(e,n){var r=this,o=this.params;if(!o)throw new Error("TinyYolov2 - load model before inference");return Je(function(){var t=e.toBatchTensor(n,!1).toFloat();return t=(t=r.config.meanRgb?Jp(t,r.config.meanRgb):t).div(Cn(256)),r.config.withSeparableConvs?r.runMobilenet(t,o):r.runTinyYolov2(t,o)})},lg.prototype.forward=function(n,r){return gp(this,void 0,void 0,function(){var e;return yp(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,Zd(n)];case 1:return[4,e.apply(this,[t.sent(),r])];case 2:return[2,t.sent()]}})})},lg.prototype.detect=function(d,v){return void 0===v&&(v={}),gp(this,void 0,void 0,function(){var e,n,r,o,i,a,s,u,c,l,h,f,p=this;return yp(this,function(t){switch(t.label){case 0:return e=new ag(v),n=e.inputSize,r=e.scoreThreshold,[4,Zd(d)];case 1:return o=t.sent(),[4,this.forwardInput(o,n)];case 2:return i=t.sent(),a=Je(function(){return Fr(i)[0].expandDims()}),s={width:o.getInputWidth(0),height:o.getInputHeight(0)},[4,this.extractBoxes(a,o.getReshapedInputDimensions(0),r)];case 3:return u=t.sent(),i.dispose(),a.dispose(),c=u.map(function(t){return t.box}),l=u.map(function(t){return t.score}),h=u.map(function(t){return t.classScore}),f=u.map(function(t){return p.config.classes[t.label]}),[2,Yp(c.map(function(t){return t.rescale(n)}),l,this.config.iouThreshold,!0).map(function(t){return new Gp(l[t],h[t],f[t],c[t],s)})]}})})},lg.prototype.getDefaultModelName=function(){return""},lg.prototype.extractParamsFromWeigthMap=function(t){return function(t,e){var n,r=[],o=ig(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"),conv6:7<u?s("conv6"):void 0,conv7:8<u?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 fv(t,r),{params:n,paramMappings:r}}(t,this.config)},lg.prototype.extractParams=function(t){var e=this.config.filterSizes||lg.DEFAULT_FILTER_SIZES,n=e?e.length:void 0;if(7!==n&&8!==n&&9!==n)throw new Error("TinyYolov2 - expected 7 | 8 | 9 convolutional filters, but found "+n+" filterSizes in config");return function(t,e,n,r){var o,i=xv(t),a=i.extractWeights,s=i.getRemainingWeights,u=[],c=og(a,u),l=c.extractConvParams,h=c.extractConvWithBatchNormParams,f=c.extractSeparableConvParams;if(e.withSeparableConvs){var p=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(p,d,3,"conv0"):f(p,d,"conv0"),conv1:f(d,v,"conv1"),conv2:f(v,m,"conv2"),conv3:f(m,g,"conv3"),conv4:f(g,y,"conv4"),conv5:f(y,x,"conv5"),conv6:b?f(x,b,"conv6"):void 0,conv7:w?f(b,w,"conv7"):void 0,conv8:l(w||b||x,5*n,1,"conv8")}}else p=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(p,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,e)},lg.prototype.extractBoxes=function(T,F,N){return gp(this,void 0,void 0,function(){var e,n,r,o,i,a,s,u,c,l,h,f,p,d,v,m,g,y,x,b,w,C,E,_,I,R,k,S,D,A=this;return yp(this,function(t){switch(t.label){case 0:return e=F.width,n=F.height,r=Math.max(e,n),o=r/e,i=r/n,a=T.shape[1],s=this.config.anchors.length,u=Je(function(){var t=T.reshape([a,a,s,A.boxEncodingSize]);return[t.slice([0,0,0,0],[a,a,s,4]),t.slice([0,0,0,4],[a,a,s,1]),A.withClassScores?Qr(t.slice([0,0,0,5],[a,a,s,A.config.classes.length]),3):Cn(0)]}),c=u[0],l=u[1],h=u[2],f=[],[4,l.array()];case 1:return p=t.sent(),[4,c.array()];case 2:d=t.sent(),v=0,t.label=3;case 3:if(!(v<a))return[3,12];m=0,t.label=4;case 4:if(!(m<a))return[3,11];g=0,t.label=5;case 5:return g<s?(y=Zp(p[v][m][g][0]),!N||N<y?(x=(m+Zp(d[v][m][g][0]))/a*o,b=(v+Zp(d[v][m][g][1]))/a*i,w=Math.exp(d[v][m][g][2])*this.config.anchors[g].x/a*o,C=Math.exp(d[v][m][g][3])*this.config.anchors[g].y/a*i,E=x-w/2,_=b-C/2,I={row:v,col:m,anchor:g},this.withClassScores?[4,this.extractPredictedClass(h,I)]:[3,7]):[3,9]):[3,10];case 6:return D=t.sent(),[3,8];case 7:D={classScore:1,label:0},t.label=8;case 8:k=(R=D).classScore,S=R.label,f.push(mp({box:new Up(E,_,E+w,_+C),score:y,classScore:y*k,label:S},I)),t.label=9;case 9:return g++,[3,5];case 10:return m++,[3,4];case 11:return v++,[3,3];case 12:return c.dispose(),l.dispose(),h.dispose(),[2,f]}})})},lg.prototype.extractPredictedClass=function(e,a){return gp(this,void 0,void 0,function(){var n,r,o,i;return yp(this,function(t){switch(t.label){case 0:return n=a.row,r=a.col,o=a.anchor,[4,e.array()];case 1:return i=t.sent(),[2,Array(this.config.classes.length).fill(0).map(function(t,e){return i[n][r][o][e]}).map(function(t,e){return{classScore:t,label:e}}).reduce(function(t,e){return t.classScore>e.classScore?t:e})]}})})},lg.DEFAULT_FILTER_SIZES=[3,16,32,64,128,256,512,1024,1024],lg);function lg(t){var e=ug.call(this,"TinyYolov2")||this;return tg(t),e._config=t,e}var hg,fg=(vp(pg,hg=cg),Object.defineProperty(pg.prototype,"withSeparableConvs",{get:function(){return this.config.withSeparableConvs},enumerable:!0,configurable:!0}),Object.defineProperty(pg.prototype,"anchors",{get:function(){return this.config.anchors},enumerable:!0,configurable:!0}),pg.prototype.locateFaces=function(e,n){return gp(this,void 0,void 0,function(){return yp(this,function(t){switch(t.label){case 0:return[4,this.detect(e,n)];case 1:return[2,t.sent().map(function(t){return new jp(t.score,t.relativeBox,{width:t.imageWidth,height:t.imageHeight})})]}})})},pg.prototype.getDefaultModelName=function(){return this.withSeparableConvs?"tiny_yolov2_separable_conv_model":"tiny_yolov2_model"},pg.prototype.extractParamsFromWeigthMap=function(t){return hg.prototype.extractParamsFromWeigthMap.call(this,t)},pg);function pg(t){void 0===t&&(t=!0);var e=Object.assign({},{withSeparableConvs:t,iouThreshold:.4,classes:["face"]},t?{anchors:Jm,meanRgb:Qm}:{anchors:Ym,withClassScores:!0});return hg.call(this,e)||this}var dg,vg=(vp(mg,dg=ag),mg);function mg(){var t=null!==dg&&dg.apply(this,arguments)||this;return t._name="TinyFaceDetectorOptions",t}var gg=(yg.prototype.then=function(n){return gp(this,void 0,void 0,function(){var e;return yp(this,function(t){switch(t.label){case 0:return e=n,[4,this.run()];case 1:return[2,e.apply(void 0,[t.sent()])]}})})},yg.prototype.run=function(){return gp(this,void 0,void 0,function(){return yp(this,function(t){throw new Error("ComposableTask - run is not implemented")})})},yg);function yg(){}function xg(a,s,u,c,l){return void 0===l&&(l=function(t){return t.alignedRect}),gp(this,void 0,void 0,function(){var e,n,r,o,i;return yp(this,function(t){switch(t.label){case 0:return e=a.map(function(t){return Wv(t)?l(t):t.detection}),(r=c)?[3,5]:s instanceof vt?[4,ev(s,e)]:[3,2];case 1:return o=t.sent(),[3,4];case 2:return[4,tv(s,e)];case 3:o=t.sent(),t.label=4;case 4:r=o,t.label=5;case 5:return[4,u(n=r)];case 6:return i=t.sent(),n.forEach(function(t){return t instanceof vt&&t.dispose()}),[2,i]}})})}function bg(e,r,o,i,a){return gp(this,void 0,void 0,function(){var n=this;return yp(this,function(t){return[2,xg([e],r,function(e){return gp(n,void 0,void 0,function(){return yp(this,function(t){return[2,o(e[0])]})})},i,a)]})})}var wg=2,Cg=12;function Eg(t){var e=xv(t),n=e.extractWeights,r=e.getRemainingWeights,o=[],i=function(r,o){var u=pv(r,o),c=dv(r,o);function l(t,e){var n=En(r(t));return o.push({paramPath:e}),n}function h(t,e,n){return void 0===n&&(n=!1),{conv1:u(t[0],t[1],3,e+"/conv1"),prelu1_alpha:l(t[1],e+"/prelu1_alpha"),conv2:u(t[1],t[2],3,e+"/conv2"),prelu2_alpha:l(t[2],e+"/prelu2_alpha"),conv3:u(t[2],t[3],n?2:3,e+"/conv3"),prelu3_alpha:l(t[3],e+"/prelu3_alpha")}}return{extractPNetParams:function(){var t=h([3,10,16,32],"pnet"),e=u(32,2,1,"pnet/conv4_1"),n=u(32,4,1,"pnet/conv4_2");return mp(mp({},t),{conv4_1:e,conv4_2:n})},extractRNetParams:function(){var t=h([3,28,48,64],"rnet",!0),e=c(576,128,"rnet/fc1"),n=l(128,"rnet/prelu4_alpha"),r=c(128,2,"rnet/fc2_1"),o=c(128,4,"rnet/fc2_2");return mp(mp({},t),{fc1:e,prelu4_alpha:n,fc2_1:r,fc2_2:o})},extractONetParams:function(){var t=h([3,32,64,64],"onet"),e=u(64,128,2,"onet/conv4"),n=l(128,"onet/prelu4_alpha"),r=c(1152,256,"onet/fc1"),o=l(256,"onet/prelu5_alpha"),i=c(256,2,"onet/fc2_1"),a=c(256,4,"onet/fc2_2"),s=c(256,10,"onet/fc2_3");return mp(mp({},t),{conv4:e,prelu4_alpha:n,fc1:r,prelu5_alpha:o,fc2_1:i,fc2_2:a,fc2_3:s})}}}(n,o),a=i.extractPNetParams,s=i.extractRNetParams,u=i.extractONetParams,c=a(),l=s(),h=u();if(0!==r().length)throw new Error("weights remaing after extract: "+r().length);return{params:{pnet:c,rnet:l,onet:h},paramMappings:o}}function _g(t){var e=[],n=function(t,e){var n=yv(t,e);function u(t){return{filters:n(t+"/weights",4,t+"/filters"),bias:n(t+"/bias",1)}}function c(t){return{weights:n(t+"/weights",2),bias:n(t+"/bias",1)}}function l(t){return n(t,1)}function h(t){return{conv1:u(t+"/conv1"),prelu1_alpha:l(t+"/prelu1_alpha"),conv2:u(t+"/conv2"),prelu2_alpha:l(t+"/prelu2_alpha"),conv3:u(t+"/conv3"),prelu3_alpha:l(t+"/prelu3_alpha")}}return{extractPNetParams:function(){var t=h("pnet"),e=u("pnet/conv4_1"),n=u("pnet/conv4_2");return mp(mp({},t),{conv4_1:e,conv4_2:n})},extractRNetParams:function(){var t=h("rnet"),e=c("rnet/fc1"),n=l("rnet/prelu4_alpha"),r=c("rnet/fc2_1"),o=c("rnet/fc2_2");return mp(mp({},t),{fc1:e,prelu4_alpha:n,fc2_1:r,fc2_2:o})},extractONetParams:function(){var t=h("onet"),e=u("onet/conv4"),n=l("onet/prelu4_alpha"),r=c("onet/fc1"),o=l("onet/prelu5_alpha"),i=c("onet/fc2_1"),a=c("onet/fc2_2"),s=c("onet/fc2_3");return mp(mp({},t),{conv4:e,prelu4_alpha:n,fc1:r,prelu5_alpha:o,fc2_1:i,fc2_2:a,fc2_3:s})}}}(t,e),r=n.extractPNetParams,o=n.extractRNetParams,i=n.extractONetParams,a=r(),s=o(),u=i();return fv(t,e),{params:{pnet:a,rnet:s,onet:u},paramMappings:e}}function Ig(t,e){var n=e[0],r=e[1];return{height:Math.floor(n*t),width:Math.floor(r*t)}}var Rg,kg=(vp(Sg,Rg=Lp),Sg);function Sg(t,e,n,r){return Rg.call(this,{left:t,top:e,right:n,bottom:r},!0)||this}function Dg(t){return Je(function(){return Mu(zu(t,Cn(127.5)),Cn(.0078125))})}function Ag(t,e){return Je(function(){return bu(tl(t),Mu(e,Ls(tl(Ls(t)))))})}function Tg(e,n,r){return void 0===r&&(r=!1),Je(function(){var t=hv(e,n.conv1,"valid");return t=Ag(t,n.prelu1_alpha),t=Ag(t=hv(t=Dc(t,r?[2,2]:[3,3],[2,2],"same"),n.conv2,"valid"),n.prelu2_alpha),t=Ag(t=hv(t=r?t:Dc(t,[3,3],[2,2],"valid"),n.conv3,"valid"),n.prelu3_alpha)})}function Fg(s,t,u,c,l){l.stage1=[];var e=t.map(function(a){return Je(function(){var t={scale:a},e=function(o,i){return Je(function(){var t=Ig(i,o.shape.slice(1)),e=t.height,n=t.width,r=Dg(th.resizeBilinear(o,[e,n]));return rl(r,[0,2,1,3])})}(s,a),n=Date.now(),r=function(r,o){return Je(function(){var t=Tg(r,o,!0),e=hv(t,o.conv4_1,"valid"),n=pr(qc(e,3),3);return{prob:Qr(zu(e,n),3),regions:hv(t,o.conv4_2,"valid")}})}(e,c),o=r.prob,i=r.regions;return t.pnet=Date.now()-n,{scoresTensor:Fr(Fr(o,3)[1])[0],regionsTensor:Fr(i)[0],scale:a,statsForScale:t}})}).map(function(t){var e=t.scoresTensor,n=t.regionsTensor,r=t.scale,o=t.statsForScale,i=function(t,o,i,e){for(var n=[],a=t.arraySync(),r=0;r<t.shape[0];r++)for(var s=0;s<t.shape[1];s++)a[r][s]>=e&&n.push(new Pp(s,r));return n.map(function(t){var e=new 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a=t.width,s=t.height;return gp(this,void 0,void 0,function(){var l,e,i,n=this;return yp(this,function(t){switch(t.label){case 0:return l=Od(h),[4,Promise.all(r.map(function(c){return gp(n,void 0,void 0,function(){var e,n,r,o,i,a,s,u;return yp(this,function(t){return e=c.padAtBorders(h.height,h.width),n=e.y,r=e.ey,o=e.x,i=e.ex,a=o-1,s=n-1,u=l.getImageData(a,s,i-a,r-s),[2,Nd.isNodejs()?Kd(u):createImageBitmap(u)]})})}))];case 1:return e=t.sent(),i=[],e.forEach(function(t){var e=Od(jd({width:a,height:s}));e.drawImage(t,0,0,a,s);for(var n=e.getImageData(0,0,a,s).data,r=[],o=0;o<n.length;o+=4)r.push(n[o+2]),r.push(n[o+1]),r.push(n[o]);i.push(r)}),[2,i.map(function(t){return Je(function(){return Dg(rl(Rn(t,[1,a,s,3]),[0,2,1,3]).toFloat())})})]}})})}function Mg(v,m,g,y,x){return gp(this,void 0,void 0,function(){var e,n,r,o,i,a,s,u,c,l,h,f,p,d;return yp(this,function(t){switch(t.label){case 0:return e=Date.now(),[4,Ng(v,m,{width:24,height:24})];case 1:return 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o=s.apply(a,[t.sent()]),r.dispose(),u=o.map(function(t,e){return{score:t,idx:e}}).filter(function(t){return t.score>y}).map(function(t){return t.idx}),c=u.map(function(t){var e=i[t].regions.arraySync();return new kg(e[0][0],e[0][1],e[0][2],e[0][3])}),l=u.map(function(t,e){return g[t].calibrate(c[e])}),h=u.map(function(t){return o[t]}),f=[],p=[],d=[],0<l.length&&(e=Date.now(),v=Yp(l,h,.7,!1),b.stage3_nms=Date.now()-e,f=v.map(function(t){return l[t]}),p=v.map(function(t){return h[t]}),d=v.map(function(r,o){return Array(5).fill(0).map(function(t,e){var n=i[r].points.arraySync();return new Pp(n[0][e]*(f[o].width+1)+f[o].left,n[0][e+5]*(f[o].height+1)+f[o].top)})})),i.forEach(function(t){t.regions.dispose(),t.scores.dispose(),t.points.dispose()}),[2,{boxes:f,scores:p,points:d}]}})})}var Pg,Bg=(vp(Lg,Pg=av),Lg.prototype.load=function(e){return gp(this,void 0,void 0,function(){return yp(this,function(t){return console.warn("mtcnn is deprecated and will be removed 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ad(b.points[t].map(function(t){return t.sub(new Pp(e.left,e.top)).div(new Pp(e.width,e.height))}),{width:e.width,height:e.height}))}),[2,a({results:w,stats:r})]}})})},Lg.prototype.forward=function(n,r){return void 0===r&&(r={}),gp(this,void 0,void 0,function(){var e;return yp(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,Zd(n)];case 1:return[4,e.apply(this,[t.sent(),r])];case 2:return[2,t.sent().results]}})})},Lg.prototype.forwardWithStats=function(n,r){return void 0===r&&(r={}),gp(this,void 0,void 0,function(){var e;return yp(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,Zd(n)];case 1:return[2,e.apply(this,[t.sent(),r])]}})})},Lg.prototype.getDefaultModelName=function(){return"mtcnn_model"},Lg.prototype.extractParamsFromWeigthMap=function(t){return _g(t)},Lg.prototype.extractParams=function(t){return Eg(t)},Lg);function Lg(){return Pg.call(this,"Mtcnn")||this}var Wg,zg=[new Pp(1.603231,2.094468),new Pp(6.041143,7.080126),new Pp(2.882459,3.518061),new Pp(4.266906,5.178857),new Pp(9.041765,10.66308)],Ug=[117.001,114.697,97.404],Vg=(vp(Gg,Wg=cg),Object.defineProperty(Gg.prototype,"anchors",{get:function(){return this.config.anchors},enumerable:!0,configurable:!0}),Gg.prototype.locateFaces=function(e,n){return gp(this,void 0,void 0,function(){return yp(this,function(t){switch(t.label){case 0:return[4,this.detect(e,n)];case 1:return[2,t.sent().map(function(t){return new jp(t.score,t.relativeBox,{width:t.imageWidth,height:t.imageHeight})})]}})})},Gg.prototype.getDefaultModelName=function(){return"tiny_face_detector_model"},Gg.prototype.extractParamsFromWeigthMap=function(t){return Wg.prototype.extractParamsFromWeigthMap.call(this,t)},Gg);function Gg(){var t={withSeparableConvs:!0,iouThreshold:.4,classes:["face"],anchors:zg,meanRgb:Ug,isFirstLayerConv2d:!0,filterSizes:[3,16,32,64,128,256,512]};return Wg.call(this,t)||this}function Hg(t,e){return Xg.ssdMobilenetv1.locateFaces(t,e)}function qg(t){return Xg.faceLandmark68Net.detectLandmarks(t)}function jg(t){return Xg.ssdMobilenetv1.load(t)}var Kg,Xg={ssdMobilenetv1:new Gm,tinyFaceDetector:new Vg,tinyYolov2:new fg,mtcnn:new Bg,faceLandmark68Net:new am,faceLandmark68TinyNet:new fm,faceRecognitionNet:new Im,faceExpressionNet:new Ov,ageGenderNet:new tm},$g=jg,Yg=Hg,Jg=qg,Qg=(vp(Zg,Kg=gg),Zg);function Zg(t,e,n){var r=Kg.call(this)||this;return r.parentTask=t,r.input=e,r.extractedFaces=n,r}var ty,ey=(vp(ny,ty=Qg),ny.prototype.run=function(){return gp(this,void 0,void 0,function(){var e,n,r=this;return yp(this,function(t){switch(t.label){case 0:return[4,this.parentTask];case 1:return[4,xg(e=t.sent(),this.input,function(e){return gp(r,void 0,void 0,function(){return yp(this,function(t){switch(t.label){case 0:return[4,Promise.all(e.map(function(t){return Xg.faceExpressionNet.predictExpressions(t)}))];case 1:return[2,t.sent()]}})})},this.extractedFaces)];case 2:return n=t.sent(),[2,e.map(function(t,e){return Lv(t,n[e])})]}})})},ny.prototype.withAgeAndGender=function(){return new my(this,this.input)},ny);function ny(){return null!==ty&&ty.apply(this,arguments)||this}var ry,oy=(vp(iy,ry=Qg),iy.prototype.run=function(){return gp(this,void 0,void 0,function(){var e,n;return yp(this,function(t){switch(t.label){case 0:return[4,this.parentTask];case 1:return(e=t.sent())?[4,bg(e,this.input,function(t){return Xg.faceExpressionNet.predictExpressions(t)},this.extractedFaces)]:[2];case 2:return n=t.sent(),[2,Lv(e,n)]}})})},iy.prototype.withAgeAndGender=function(){return new xy(this,this.input)},iy);function iy(){return null!==ry&&ry.apply(this,arguments)||this}var ay,sy=(vp(uy,ay=ey),uy.prototype.withAgeAndGender=function(){return new Cy(this,this.input)},uy.prototype.withFaceDescriptors=function(){return new Ty(this,this.input)},uy);function uy(){return null!==ay&&ay.apply(this,arguments)||this}var cy,ly=(vp(hy,cy=oy),hy.prototype.withAgeAndGender=function(){return new Iy(this,this.input)},hy.prototype.withFaceDescriptor=function(){return new My(this,this.input)},hy);function hy(){return null!==cy&&cy.apply(this,arguments)||this}var fy,py=(vp(dy,fy=gg),dy);function dy(t,e,n){var r=fy.call(this)||this;return r.parentTask=t,r.input=e,r.extractedFaces=n,r}var vy,my=(vp(gy,vy=py),gy.prototype.run=function(){return gp(this,void 0,void 0,function(){var e,o,n=this;return yp(this,function(t){switch(t.label){case 0:return[4,this.parentTask];case 1:return[4,xg(e=t.sent(),this.input,function(e){return gp(n,void 0,void 0,function(){return yp(this,function(t){switch(t.label){case 0:return[4,Promise.all(e.map(function(t){return Xg.ageGenderNet.predictAgeAndGender(t)}))];case 1:return[2,t.sent()]}})})},this.extractedFaces)];case 2:return o=t.sent(),[2,e.map(function(t,e){var n=o[e],r=n.age;return Sm(Dm(t,n.gender,n.genderProbability),r)})]}})})},gy.prototype.withFaceExpressions=function(){return new ey(this,this.input)},gy);function gy(){return null!==vy&&vy.apply(this,arguments)||this}var yy,xy=(vp(by,yy=py),by.prototype.run=function(){return gp(this,void 0,void 0,function(){var e,n,r,o,i;return yp(this,function(t){switch(t.label){case 0:return[4,this.parentTask];case 1:return(e=t.sent())?[4,bg(e,this.input,function(t){return Xg.ageGenderNet.predictAgeAndGender(t)},this.extractedFaces)]:[2];case 2:return n=t.sent(),r=n.age,o=n.gender,i=n.genderProbability,[2,Sm(Dm(e,o,i),r)]}})})},by.prototype.withFaceExpressions=function(){return new oy(this,this.input)},by);function by(){return null!==yy&&yy.apply(this,arguments)||this}var wy,Cy=(vp(Ey,wy=my),Ey.prototype.withFaceExpressions=function(){return new sy(this,this.input)},Ey.prototype.withFaceDescriptors=function(){return new Ty(this,this.input)},Ey);function Ey(){return null!==wy&&wy.apply(this,arguments)||this}var _y,Iy=(vp(Ry,_y=xy),Ry.prototype.withFaceExpressions=function(){return new ly(this,this.input)},Ry.prototype.withFaceDescriptor=function(){return new My(this,this.input)},Ry);function Ry(){return null!==_y&&_y.apply(this,arguments)||this}var ky,Sy=(vp(Dy,ky=gg),Dy);function Dy(t,e){var n=ky.call(this)||this;return n.parentTask=t,n.input=e,n}var Ay,Ty=(vp(Fy,Ay=Sy),Fy.prototype.run=function(){return gp(this,void 0,void 0,function(){var n;return yp(this,function(t){switch(t.label){case 0:return[4,this.parentTask];case 1:return[4,xg(n=t.sent(),this.input,function(t){return Promise.all(t.map(function(t){return Xg.faceRecognitionNet.computeFaceDescriptor(t)}))},null,function(t){return t.landmarks.align(null,{useDlibAlignment:!0})})];case 2:return[2,t.sent().map(function(t,e){return km(n[e],t)})]}})})},Fy.prototype.withFaceExpressions=function(){return new sy(this,this.input)},Fy.prototype.withAgeAndGender=function(){return new Cy(this,this.input)},Fy);function Fy(){return null!==Ay&&Ay.apply(this,arguments)||this}var Ny,My=(vp(Oy,Ny=Sy),Oy.prototype.run=function(){return gp(this,void 0,void 0,function(){var e,n;return yp(this,function(t){switch(t.label){case 0:return[4,this.parentTask];case 1:return(e=t.sent())?[4,bg(e,this.input,function(t){return Xg.faceRecognitionNet.computeFaceDescriptor(t)},null,function(t){return t.landmarks.align(null,{useDlibAlignment:!0})})]:[2];case 2:return n=t.sent(),[2,km(e,n)]}})})},Oy.prototype.withFaceExpressions=function(){return new ly(this,this.input)},Oy.prototype.withAgeAndGender=function(){return new Iy(this,this.input)},Oy);function Oy(){return null!==Ny&&Ny.apply(this,arguments)||this}var Py,By=(vp(Ly,Py=gg),Object.defineProperty(Ly.prototype,"landmarkNet",{get:function(){return this.useTinyLandmarkNet?Xg.faceLandmark68TinyNet:Xg.faceLandmark68Net},enumerable:!0,configurable:!0}),Ly);function Ly(t,e,n){var r=Py.call(this)||this;return r.parentTask=t,r.input=e,r.useTinyLandmarkNet=n,r}var Wy,zy=(vp(Uy,Wy=By),Uy.prototype.run=function(){return gp(this,void 0,void 0,function(){var e,n,r,o,i,a=this;return yp(this,function(t){switch(t.label){case 0:return[4,this.parentTask];case 1:return e=t.sent(),n=e.map(function(t){return t.detection}),this.input instanceof vt?[4,ev(this.input,n)]:[3,3];case 2:return o=t.sent(),[3,5];case 3:return[4,tv(this.input,n)];case 4:o=t.sent(),t.label=5;case 5:return r=o,[4,Promise.all(r.map(function(t){return a.landmarkNet.detectLandmarks(t)}))];case 6:return i=t.sent(),r.forEach(function(t){return t instanceof vt&&t.dispose()}),[2,e.map(function(t,e){return zv(t,i[e])})]}})})},Uy.prototype.withFaceExpressions=function(){return new sy(this,this.input)},Uy.prototype.withAgeAndGender=function(){return new Cy(this,this.input)},Uy.prototype.withFaceDescriptors=function(){return new Ty(this,this.input)},Uy);function Uy(){return null!==Wy&&Wy.apply(this,arguments)||this}var Vy,Gy=(vp(Hy,Vy=By),Hy.prototype.run=function(){return gp(this,void 0,void 0,function(){var e,n,r,o,i;return yp(this,function(t){switch(t.label){case 0:return[4,this.parentTask];case 1:return(e=t.sent())?(n=e.detection,this.input instanceof vt?[4,ev(this.input,[n])]:[3,3]):[2];case 2:return o=t.sent(),[3,5];case 3:return[4,tv(this.input,[n])];case 4:o=t.sent(),t.label=5;case 5:return r=o,[4,this.landmarkNet.detectLandmarks(r[0])];case 6:return i=t.sent(),r.forEach(function(t){return t instanceof vt&&t.dispose()}),[2,zv(e,i)]}})})},Hy.prototype.withFaceExpressions=function(){return new ly(this,this.input)},Hy.prototype.withAgeAndGender=function(){return new Iy(this,this.input)},Hy.prototype.withFaceDescriptor=function(){return new My(this,this.input)},Hy);function Hy(){return null!==Vy&&Vy.apply(this,arguments)||this}var qy,jy=(vp(Ky,qy=gg),Ky);function Ky(t,e){void 0===e&&(e=new zm);var n=qy.call(this)||this;return n.input=t,n.options=e,n}var Xy,$y=(vp(Yy,Xy=jy),Yy.prototype.run=function(){return gp(this,void 0,void 0,function(){var e,n,r,o;return yp(this,function(t){switch(t.label){case 0:return n=(e=this).input,(r=e.options)instanceof Am?[4,Xg.mtcnn.forward(n,r)]:[3,2];case 1:return[2,t.sent().map(function(t){return t.detection})];case 2:if(!(o=r instanceof vg?function(t){return Xg.tinyFaceDetector.locateFaces(t,r)}:r instanceof zm?function(t){return Xg.ssdMobilenetv1.locateFaces(t,r)}:r instanceof ag?function(t){return Xg.tinyYolov2.locateFaces(t,r)}:null))throw new Error("detectFaces - expected options to be instance of TinyFaceDetectorOptions | SsdMobilenetv1Options | MtcnnOptions | TinyYolov2Options");return[2,o(n)]}})})},Yy.prototype.runAndExtendWithFaceDetections=function(){var t=this;return new Promise(function(n){return gp(t,void 0,void 0,function(){var e;return yp(this,function(t){switch(t.label){case 0:return[4,this.run()];case 1:return e=t.sent(),[2,n(e.map(function(t){return Ed({},t)}))]}})})})},Yy.prototype.withFaceLandmarks=function(t){return void 0===t&&(t=!1),new zy(this.runAndExtendWithFaceDetections(),this.input,t)},Yy.prototype.withFaceExpressions=function(){return new ey(this.runAndExtendWithFaceDetections(),this.input)},Yy.prototype.withAgeAndGender=function(){return new my(this.runAndExtendWithFaceDetections(),this.input)},Yy);function Yy(){return null!==Xy&&Xy.apply(this,arguments)||this}var Jy,Qy=(vp(Zy,Jy=jy),Zy.prototype.run=function(){return gp(this,void 0,void 0,function(){var e,n;return yp(this,function(t){switch(t.label){case 0:return[4,new $y(this.input,this.options)];case 1:return e=t.sent(),n=e[0],e.forEach(function(t){t.score>n.score&&(n=t)}),[2,n]}})})},Zy.prototype.runAndExtendWithFaceDetection=function(){var t=this;return new Promise(function(n){return gp(t,void 0,void 0,function(){var e;return yp(this,function(t){switch(t.label){case 0:return[4,this.run()];case 1:return e=t.sent(),[2,n(e?Ed({},e):void 0)]}})})})},Zy.prototype.withFaceLandmarks=function(t){return void 0===t&&(t=!1),new Gy(this.runAndExtendWithFaceDetection(),this.input,t)},Zy.prototype.withFaceExpressions=function(){return new oy(this.runAndExtendWithFaceDetection(),this.input)},Zy.prototype.withAgeAndGender=function(){return new xy(this.runAndExtendWithFaceDetection(),this.input)},Zy);function Zy(){return null!==Jy&&Jy.apply(this,arguments)||this}function tx(t,e){return void 0===e&&(e=new zm),new $y(t,e)}function ex(e,n){return gp(this,void 0,void 0,function(){return yp(this,function(t){switch(t.label){case 0:return console.warn("allFacesSsdMobilenetv1 is deprecated and will be removed soon, use the high level api instead"),[4,tx(e,new zm(n?{minConfidence:n}:{})).withFaceLandmarks().withFaceDescriptors()];case 1:return[2,t.sent()]}})})}var nx=ex;function rx(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 ox=(Object.defineProperty(ix.prototype,"labeledDescriptors",{get:function(){return this._labeledDescriptors},enumerable:!0,configurable:!0}),Object.defineProperty(ix.prototype,"distanceThreshold",{get:function(){return this._distanceThreshold},enumerable:!0,configurable:!0}),ix.prototype.computeMeanDistance=function(e,t){return t.map(function(t){return rx(t,e)}).reduce(function(t,e){return t+e},0)/(t.length||1)},ix.prototype.matchDescriptor=function(r){var o=this;return this.labeledDescriptors.map(function(t){var e=t.descriptors,n=t.label;return new hd(n,o.computeMeanDistance(r,e))}).reduce(function(t,e){return t.distance<e.distance?t:e})},ix.prototype.findBestMatch=function(t){var e=this.matchDescriptor(t);return e.distance<this.distanceThreshold?e:new hd("unknown",e.distance)},ix.prototype.toJSON=function(){return{distanceThreshold:this.distanceThreshold,labeledDescriptors:this.labeledDescriptors.map(function(t){return t.toJSON()})}},ix.fromJSON=function(t){return new ix(t.labeledDescriptors.map(function(t){return md.fromJSON(t)}),t.distanceThreshold)},ix);function ix(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");function r(){return"person "+o++}var o=1;this._labeledDescriptors=n.map(function(t){if(t instanceof md)return t;if(t instanceof Float32Array)return new md(r(),[t]);if(t.descriptor&&t.descriptor instanceof Float32Array)return new md(r(),[t.descriptor]);throw new Error("FaceRecognizer.constructor - expected inputs to be of type LabeledFaceDescriptors | WithFaceDescriptor<any> | Float32Array | Array<LabeledFaceDescriptors | WithFaceDescriptor<any> | Float32Array>")})}c.AgeGenderNet=tm,c.BoundingBox=Up,c.Box=Lp,c.ComposableTask=gg,c.ComputeAllFaceDescriptorsTask=Ty,c.ComputeFaceDescriptorsTaskBase=Sy,c.ComputeSingleFaceDescriptorTask=My,c.DetectAllFaceLandmarksTask=zy,c.DetectAllFacesTask=$y,c.DetectFaceLandmarksTaskBase=By,c.DetectFacesTaskBase=jy,c.DetectSingleFaceLandmarksTask=Gy,c.DetectSingleFaceTask=Qy,c.Dimensions=bp,c.FACE_EXPRESSION_LABELS=Tv,c.FaceDetection=jp,c.FaceDetectionNet=Km,c.FaceExpressionNet=Ov,c.FaceExpressions=Fv,c.FaceLandmark68Net=am,c.FaceLandmark68TinyNet=fm,c.FaceLandmarkNet=vm,c.FaceLandmarks=rd,c.FaceLandmarks5=ad,c.FaceLandmarks68=cd,c.FaceMatch=hd,c.FaceMatcher=ox,c.FaceRecognitionNet=Im,c.LabeledBox=dd,c.LabeledFaceDescriptors=md,c.Mtcnn=Bg,c.MtcnnOptions=Am,c.NetInput=Jd,c.NeuralNetwork=av,c.ObjectDetection=Gp,c.Point=Pp,c.PredictedBox=bd,c.Rect=ed,c.SsdMobilenetv1=Gm,c.SsdMobilenetv1Options=zm,c.TinyFaceDetector=Vg,c.TinyFaceDetectorOptions=vg,c.TinyYolov2=fg,c.TinyYolov2Options=ag,c.allFaces=nx,c.allFacesMtcnn=function(e,n){return void 0===n&&(n={}),gp(this,void 0,void 0,function(){return yp(this,function(t){switch(t.label){case 0:return console.warn("allFacesMtcnn is deprecated and will be removed soon, use the high level api instead"),[4,tx(e,new Am(n)).withFaceLandmarks().withFaceDescriptors()];case 1:return[2,t.sent()]}})})},c.allFacesSsdMobilenetv1=ex,c.allFacesTinyYolov2=function(e,n){return void 0===n&&(n={}),gp(this,void 0,void 0,function(){return yp(this,function(t){switch(t.label){case 0:return console.warn("allFacesTinyYolov2 is deprecated and will be removed soon, use the high level api instead"),[4,tx(e,new ag(n)).withFaceLandmarks().withFaceDescriptors()];case 1:return[2,t.sent()]}})})},c.awaitMediaLoaded=Gd,c.bufferToImage=Hd,c.computeFaceDescriptor=function(t){return Xg.faceRecognitionNet.computeFaceDescriptor(t)},c.createCanvas=jd,c.createCanvasFromMedia=Kd,c.createFaceDetectionNet=function(t){return qm(t)},c.createFaceRecognitionNet=function(t){var e=new Im;return e.extractWeights(t),e},c.createMtcnn=function(t){var e=new Bg;return e.extractWeights(t),e},c.createSsdMobilenetv1=qm,c.createTinyFaceDetector=function(t){var e=new Vg;return e.extractWeights(t),e},c.createTinyYolov2=function(t,e){void 0===e&&(e=!0);var n=new fg(e);return n.extractWeights(t),n},c.detectAllFaces=tx,c.detectFaceLandmarks=qg,c.detectFaceLandmarksTiny=function(t){return Xg.faceLandmark68TinyNet.detectLandmarks(t)},c.detectLandmarks=Jg,c.detectSingleFace=function(t,e){return void 0===e&&(e=new zm),new Qy(t,e)},c.draw=Hv,c.env=Nd,c.euclideanDistance=rx,c.extendWithAge=Sm,c.extendWithFaceDescriptor=km,c.extendWithFaceDetection=Ed,c.extendWithFaceExpressions=Lv,c.extendWithFaceLandmarks=zv,c.extendWithGender=Dm,c.extractFaceTensors=ev,c.extractFaces=tv,c.fetchImage=function(r){return gp(this,void 0,void 0,function(){var e,n;return yp(this,function(t){switch(t.label){case 0:return[4,nv(r)];case 1:return[4,(e=t.sent()).blob()];case 2:if(!(n=t.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,Hd(n)]}})})},c.fetchJson=rv,c.fetchNetWeights=function(n){return gp(this,void 0,void 0,function(){var e;return yp(this,function(t){switch(t.label){case 0:return e=Float32Array.bind,[4,nv(n)];case 1:return[4,t.sent().arrayBuffer()];case 2:return[2,new(e.apply(Float32Array,[void 0,t.sent()]))]}})})},c.fetchOrThrow=nv,c.getContext2dOrThrow=Od,c.getMediaDimensions=qd,c.imageTensorToCanvas=Xd,c.imageToSquare=Yd,c.inverseSigmoid=function(t){return Math.log(t/(1-t))},c.iou=Xp,c.isMediaElement=$d,c.isMediaLoaded=Vd,c.isWithAge=function(t){return"number"==typeof t.age},c.isWithFaceDetection=Cd,c.isWithFaceExpressions=Bv,c.isWithFaceLandmarks=Wv,c.isWithGender=function(t){return(t.gender===c.Gender.MALE||t.gender===c.Gender.FEMALE)&&Mp(t.genderProbability)},c.loadAgeGenderModel=function(t){return Xg.ageGenderNet.load(t)},c.loadFaceDetectionModel=$g,c.loadFaceExpressionModel=function(t){return Xg.faceExpressionNet.load(t)},c.loadFaceLandmarkModel=function(t){return Xg.faceLandmark68Net.load(t)},c.loadFaceLandmarkTinyModel=function(t){return Xg.faceLandmark68TinyNet.load(t)},c.loadFaceRecognitionModel=function(t){return Xg.faceRecognitionNet.load(t)},c.loadMtcnnModel=function(t){return Xg.mtcnn.load(t)},c.loadSsdMobilenetv1Model=jg,c.loadTinyFaceDetectorModel=function(t){return Xg.tinyFaceDetector.load(t)},c.loadTinyYolov2Model=function(t){return Xg.tinyYolov2.load(t)},c.loadWeightMap=iv,c.locateFaces=Yg,c.matchDimensions=function(t,e,n){void 0===n&&(n=!1);var r=n?qd(e):e,o=r.width,i=r.height;return{width:t.width=o,height:t.height=i}},c.minBbox=$p,c.mtcnn=function(t,e){return Xg.mtcnn.forward(t,e)},c.nets=Xg,c.nonMaxSuppression=Yp,c.normalize=Jp,c.padToSquare=Qp,c.predictAgeAndGender=function(t){return Xg.ageGenderNet.predictAgeAndGender(t)},c.recognizeFaceExpressions=function(t){return Xg.faceExpressionNet.predictExpressions(t)},c.resizeResults=function e(t,n){var r=new bp(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(t))return t.map(function(t){return e(t,{width:o,height:i})});if(Wv(t)){var a=t.detection.forSize(o,i),s=t.unshiftedLandmarks.forSize(a.box.width,a.box.height);return zv(Ed(t,a),s)}return Cd(t)?Ed(t,t.detection.forSize(o,i)):t instanceof rd||t instanceof jp?t.forSize(o,i):t},c.resolveInput=Md,c.shuffleArray=function(t){for(var e=t.slice(),n=e.length-1;0<n;n--){var r=Math.floor(Math.random()*(n+1)),o=e[n];e[n]=e[r],e[r]=o}return e},c.sigmoid=Zp,c.ssdMobilenetv1=Hg,c.tf=fp,c.tinyFaceDetector=function(t,e){return Xg.tinyFaceDetector.locateFaces(t,e)},c.tinyYolov2=function(t,e){return Xg.tinyYolov2.locateFaces(t,e)},c.toNetInput=Zd,c.utils=Op,c.validateConfig=tg,Object.defineProperty(c,"__esModule",{value:!0})});