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 * Copyright 2020 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
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 * You may obtain a copy of the License at
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 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
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 * See the License for the specific language governing permissions and
 * limitations under the License.
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this.throwIfDisposed(),oe.ceil(this)},r.prototype.floor=function(){return this.throwIfDisposed(),oe.floor(this)},r.prototype.sign=function(){return this.throwIfDisposed(),oe.sign(this)},r.prototype.isNaN=function(){return this.throwIfDisposed(),oe.isNaN(this)},r.prototype.isInf=function(){return this.throwIfDisposed(),oe.isInf(this)},r.prototype.isFinite=function(){return this.throwIfDisposed(),oe.isFinite(this)},r.prototype.exp=function(){return this.throwIfDisposed(),oe.exp(this)},r.prototype.expm1=function(){return this.throwIfDisposed(),oe.expm1(this)},r.prototype.log=function(){return this.throwIfDisposed(),oe.log(this)},r.prototype.log1p=function(){return this.throwIfDisposed(),oe.log1p(this)},r.prototype.sqrt=function(){return this.throwIfDisposed(),oe.sqrt(this)},r.prototype.rsqrt=function(){return this.throwIfDisposed(),oe.rsqrt(this)},r.prototype.square=function(){return this.throwIfDisposed(),oe.square(this)},r.prototype.reciprocal=function(){return 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WeakMap,this.profiling=!1,this.activeProfile={newBytes:0,newTensors:0,peakBytes:0,kernels:[],result:null}}return r.prototype.dispose=function(){for(var n in this.registeredVariables)this.registeredVariables[n].dispose()},r}(),mi=function(){function r(n){this.ENV=n,this.registry={},this.registryFactory={},this.pendingBackendInitId=0,this.state=new Fo}return r.prototype.ready=function(){return ve(this,void 0,void 0,function(){var n,e,t;return ye(this,function(a){switch(a.label){case 0:if(this.pendingBackendInit!=null)return[2,this.pendingBackendInit.then(function(){})];if(this.backendInstance!=null)return[2];n=this.getSortedBackends(),e=0,a.label=1;case 1:return e<n.length?(t=n[e],[4,this.initializeBackend(t).success]):[3,5];case 2:return a.sent()?[4,this.setBackend(t)]:[3,4];case 3:return a.sent(),[2];case 4:return e++,[3,1];case 5:throw new Error("Could not initialize any backends, all backend initializations failed.")}})})},Object.defineProperty(r.prototype,"backend",{get:function(){if(this.pendingBackendInit!=null)throw new Error("Backend '"+this.backendName+"' has not yet been initialized. Make sure to await tf.ready() or await tf.setBackend() before calling other methods");if(this.backendInstance==null){var n=this.initializeBackendsAndReturnBest(),e=n.name;if(n.asyncInit)throw new Error("The highest priority backend '"+e+"' has not yet been initialized. Make sure to await tf.ready() or await tf.setBackend() before calling other methods");this.setBackend(e)}return this.backendInstance},enumerable:!0,configurable:!0}),r.prototype.backendNames=function(){return Object.keys(this.registryFactory)},r.prototype.findBackend=function(n){if(!(n in this.registry)){if(!(n in this.registryFactory))return null;if(this.initializeBackend(n).asyncInit)return null}return this.registry[n]},r.prototype.findBackendFactory=function(n){return n in this.registryFactory?this.registryFactory[n].factory:null},r.prototype.registerBackend=function(n,e,t){return t===void 0&&(t=1),n in this.registryFactory?(console.warn(n+" backend was already registered. Reusing existing backend factory."),!1):(this.registryFactory[n]={factory:e,priority:t},!0)},r.prototype.setBackend=function(n){return ve(this,void 0,void 0,function(){var e,t,a;return ye(this,function(o){switch(o.label){case 0:if(this.registryFactory[n]==null)throw new Error("Backend name '"+n+"' not found in registry");return this.backendName=n,this.registry[n]!=null?[3,4]:(this.backendInstance=null,e=this.initializeBackend(n),t=e.success,e.asyncInit?[4,t]:[3,2]);case 1:return a=o.sent(),[3,3];case 2:a=t,o.label=3;case 3:if(!a)return[2,!1];o.label=4;case 4:return this.backendInstance=this.registry[n],this.setupRegisteredKernels(),this.profiler=new qt(this.backendInstance),[2,!0]}})})},r.prototype.setupRegisteredKernels=function(){var n=this;Ct(this.backendName).forEach(function(e){e.setupFunc!=null&&e.setupFunc(n.backendInstance)})},r.prototype.disposeRegisteredKernels=function(n){var e=this;Ct(n).forEach(function(t){t.disposeFunc!=null&&t.disposeFunc(e.registry[n])})},r.prototype.initializeBackend=function(n){var e=this,t=this.registryFactory[n];if(t==null)throw new Error("Cannot initialize backend "+n+", no registration found.");try{var a=t.factory();if(Promise.resolve(a)===a){var o=++this.pendingBackendInitId,i=a.then(function(s){return!(o<e.pendingBackendInitId)&&(e.registry[n]=s,e.pendingBackendInit=null,!0)}).catch(function(s){return!(o<e.pendingBackendInitId)&&(e.pendingBackendInit=null,console.warn("Initialization of backend "+n+" failed"),console.warn(s.stack||s.message),!1)});return this.pendingBackendInit=i,{success:i,asyncInit:!0}}return this.registry[n]=a,{success:!0,asyncInit:!1}}catch(s){return console.warn("Initialization of backend "+n+" failed"),console.warn(s.stack||s.message),{success:!1,asyncInit:!1}}},r.prototype.removeBackend=function(n){if(!(n in this.registryFactory))throw new Error(n+" backend not found in registry");this.backendName===n&&this.pendingBackendInit!=null&&this.pendingBackendInitId++,n in this.registry&&(this.disposeRegisteredKernels(n),this.registry[n].dispose(),delete this.registry[n]),delete this.registryFactory[n],this.backendName===n&&(this.pendingBackendInit=null,this.backendName=null,this.backendInstance=null)},r.prototype.getSortedBackends=function(){var n=this;if(Object.keys(this.registryFactory).length===0)throw new Error("No backend found in registry.");return Object.keys(this.registryFactory).sort(function(e,t){return n.registryFactory[t].priority-n.registryFactory[e].priority})},r.prototype.initializeBackendsAndReturnBest=function(){for(var n=this.getSortedBackends(),e=0;e<n.length;e++){var t=n[e],a=this.initializeBackend(t),o=a.success,i=a.asyncInit;if(i||o)return{name:t,asyncInit:i}}throw new Error("Could not initialize any backends, all backend initializations failed.")},r.prototype.moveData=function(n,e){var t=this.state.tensorInfo.get(e),a=t.backend,o=this.readSync(e);a.disposeData(e),t.backend=n,n.move(e,o,t.shape,t.dtype),this.shouldCheckForMemLeaks()&&this.state.numDataMovesStack[this.state.numDataMovesStack.length-1]++},r.prototype.tidy=function(n,e){var t,a=this,o=null;if(e==null){if(typeof n!="function")throw new Error("Please provide a function to tidy()");e=n}else{if(typeof n!="string"&&!(n instanceof String))throw new Error("When calling with two arguments, the first argument to tidy() must be a string");if(typeof e!="function")throw new Error("When calling with two arguments, the 2nd argument to tidy() must be a function");o=n}return this.scopedRun(function(){return a.startScope(o)},function(){return a.endScope(t)},function(){return(t=e())instanceof Promise&&console.error("Cannot return a Promise inside of tidy."),t})},r.prototype.scopedRun=function(n,e,t){n();try{var a=t();return e(),a}catch(o){throw e(),o}},r.prototype.nextTensorId=function(){return r.nextTensorId++},r.prototype.nextVariableId=function(){return r.nextVariableId++},r.prototype.clone=function(n){var e=this.makeTensorFromDataId(n.dataId,n.shape,n.dtype),t={x:n};return this.addTapeNode(this.state.activeScope.name,t,[e],function(a){return{x:function(){return a.toFloat()}}},[]),e},r.prototype.runKernel=function(n,e,t,a,o){return this.runKernelFunc(null,e,null,n,t,a,o)},r.prototype.shouldCheckForMemLeaks=function(){return this.ENV.getBool("IS_TEST")},r.prototype.checkKernelForMemLeak=function(n,e,t){var a=this.backend.numDataIds(),o=0;t.forEach(function(u){o+=u.dtype==="complex64"?3:1});var i=this.state.numDataMovesStack[this.state.numDataMovesStack.length-1],s=a-e-o-i;if(s>0)throw new Error("Backend '"+this.backendName+"' has an internal memory leak ("+s+" data ids) after running '"+n+"'")},r.prototype.runKernelFunc=function(n,e,t,a,o,i,s){var u,c=this;i===void 0&&(i=[]),s===void 0&&(s=[]);var d=[],f=this.isTapeOn();a==null&&(a=this.state.activeScope!=null?this.state.activeScope.name:"");var m,g=function(N){f&&(d=N.map(function(S){return c.keep(c.clone(S))}))},x=this.state.numBytes,E=this.state.numTensors;this.shouldCheckForMemLeaks()&&this.state.numDataMovesStack.push(0);var w,C=Ve(a,this.backendName);return m=C!=null?function(){var N=c.backend.numDataIds();w=C.kernelFunc({inputs:e,attrs:o,backend:c.backend});var S=Array.isArray(w)?w:[w];c.shouldCheckForMemLeaks()&&c.checkKernelForMemLeak(a,N,S);var I=S.map(function(j){var G=j.dataId,z=j.shape,W=j.dtype;return c.makeTensorFromDataId(G,z,W)}),M=I.filter(function(j,G){return s[G]});return g((i||[]).slice().concat(M)),I}:function(){var N=c.backend.numDataIds();w=c.tidy(function(){return n(c.backend,g)});var S=Array.isArray(w)?w:[w];return c.shouldCheckForMemLeaks()&&c.checkKernelForMemLeak(a,N,S),S},this.scopedRun(function(){return c.state.kernelDepth++},function(){return c.state.kernelDepth--},function(){u=c.ENV.getBool("DEBUG")?c.profiler.profileKernel(a,e,function(){return m()}):m()}),f&&this.addTapeNode(a,e,u,t,d),this.state.profiling&&this.state.activeProfile.kernels.push({name:a,bytesAdded:this.state.numBytes-x,totalBytesSnapshot:this.state.numBytes,tensorsAdded:this.state.numTensors-E,totalTensorsSnapshot:this.state.numTensors,inputShapes:Object.keys(e).map(function(N){return e[N].shape}),outputShapes:u.map(function(N){return N.shape})}),Array.isArray(w)?u:u[0]},r.prototype.makeTensor=function(n,e,t,a){if(n==null)throw new Error("Values passed to engine.makeTensor() are null");t=t||"float32",a=a||this.backend;var o=n;t==="string"&&wn(n[0])&&(o=n.map(function(d){return xe(d)}));var i=a.write(o,e,t),s=new fn(e,t,i,this.nextTensorId());if(this.incRef(s,a),t==="string"){var u=this.state.tensorInfo.get(i),c=rr(o);this.state.numBytes+=c-u.bytes,u.bytes=c}return s},r.prototype.makeTensorFromDataId=function(n,e,t,a){var o=new fn(e,t=t||"float32",n,this.nextTensorId());return this.incRef(o,a),o},r.prototype.makeVariable=function(n,e,t,a){e===void 0&&(e=!0),t=t||this.nextVariableId().toString(),a!=null&&a!==n.dtype&&(n=n.asType(a));var o=new Fr(n,e,t,this.nextTensorId());if(this.state.registeredVariables[o.name]!=null)throw new Error("Variable with name "+o.name+" was already registered");return this.state.registeredVariables[o.name]=o,this.incRef(o,this.backend),o},r.prototype.incRef=function(n,e){var t=this.state.tensorInfo.has(n.dataId)?this.state.tensorInfo.get(n.dataId).refCount:0;if(this.state.numTensors++,n.dtype==="string"&&this.state.numStringTensors++,t===0){this.state.numDataBuffers++;var a=0;n.dtype!=="complex64"&&n.dtype!=="string"&&(a=n.size*nr(n.dtype)),this.state.tensorInfo.set(n.dataId,{backend:e||this.backend,dtype:n.dtype,shape:n.shape,bytes:a,refCount:0}),this.state.numBytes+=a}this.state.tensorInfo.get(n.dataId).refCount++,n instanceof Fr||this.track(n)},r.prototype.disposeTensor=function(n){if(this.state.tensorInfo.has(n.dataId)){this.state.numTensors--,n.dtype==="string"&&this.state.numStringTensors--;var e=this.state.tensorInfo.get(n.dataId);e.refCount<=1?(n.dtype!=="complex64"&&(this.state.numBytes-=e.bytes),this.state.numDataBuffers--,e.backend.disposeData(n.dataId),this.state.tensorInfo.delete(n.dataId)):this.state.tensorInfo.get(n.dataId).refCount--}},r.prototype.disposeVariables=function(){for(var n in this.state.registeredVariables){var e=this.state.registeredVariables[n];this.disposeVariable(e)}},r.prototype.disposeVariable=function(n){this.disposeTensor(n),this.state.registeredVariables[n.name]!=null&&delete this.state.registeredVariables[n.name]},r.prototype.memory=function(){var n=this.backend.memory();return n.numTensors=this.state.numTensors,n.numDataBuffers=this.state.numDataBuffers,n.numBytes=this.state.numBytes,this.state.numStringTensors>0&&(n.unreliable=!0,n.reasons==null&&(n.reasons=[]),n.reasons.push("Memory usage by string tensors is approximate (2 bytes per character)")),n},r.prototype.profile=function(n){return ve(this,void 0,void 0,function(){var e,t;return ye(this,function(a){return this.state.profiling=!0,e=this.state.numBytes,t=this.state.numTensors,this.state.activeProfile.kernels=[],this.state.activeProfile.result=n(),this.state.profiling=!1,this.state.activeProfile.peakBytes=Math.max.apply(Math,this.state.activeProfile.kernels.map(function(o){return o.totalBytesSnapshot})),this.state.activeProfile.newBytes=this.state.numBytes-e,this.state.activeProfile.newTensors=this.state.numTensors-t,[2,this.state.activeProfile]})})},r.prototype.isTapeOn=function(){return this.state.gradientDepth>0&&this.state.kernelDepth===0},r.prototype.addTapeNode=function(n,e,t,a,o){var i=this,s={id:this.state.nextTapeNodeId++,kernelName:n,inputs:e,outputs:t,saved:o},u=st(n);u!=null&&(a=u.gradFunc),a!=null&&(s.gradient=function(c){return c=c.map(function(d,f){if(d==null){var m=t[f],g=U(m.size,m.dtype);return i.makeTensor(g,m.shape,m.dtype)}return d}),a(c.length>1?c:c[0],o)}),this.state.activeTape.push(s)},r.prototype.keep=function(n){return n.kept=!0,n},r.prototype.startTape=function(){this.state.gradientDepth===0&&(this.state.activeTape=[]),this.state.gradientDepth++},r.prototype.endTape=function(){this.state.gradientDepth--},r.prototype.startScope=function(n){var e={track:[],name:"unnamed scope",id:this.state.nextScopeId++};n&&(e.name=n),this.state.scopeStack.push(e),this.state.activeScope=e},r.prototype.endScope=function(n){for(var e=this,t=qn(n),a=new Set(t.map(function(u){return u.id})),o=0;o<this.state.activeScope.track.length;o++){var i=this.state.activeScope.track[o];i.kept||a.has(i.id)||i.dispose()}var s=this.state.scopeStack.pop();this.state.activeScope=this.state.scopeStack.length===0?null:this.state.scopeStack[this.state.scopeStack.length-1],t.forEach(function(u){u.kept||u.scopeId!==s.id||e.track(u)})},r.prototype.gradients=function(n,e,t,a){var o=this;if(a===void 0&&(a=!1),D(e.length>0,function(){return"gradients() received an empty list of xs."}),t!=null&&t.dtype!=="float32")throw new Error("dy must have 'float32' dtype, but has '"+t.dtype+"'");var i=this.scopedRun(function(){return o.startTape()},function(){return o.endTape()},function(){return o.tidy("forward",n)});D(i instanceof fn,function(){return"The result y returned by f() must be a tensor."});var s=function(u,c,d){for(var f={},m={},g=0;g<c.length;g++)f[c[g].id]=!0;for(g=0;g<u.length;g++){var x=(j=u[g]).inputs;for(var E in x){for(var w=x[E],C=!1,N=0;N<c.length;N++)if(f[w.id]){j.outputs.forEach(function(V){return f[V.id]=!0}),C=!0,m[j.id]=!0;break}if(C)break}}var S={};S[d.id]=!0;var I={};for(g=u.length-1;g>=0;g--)for(x=(j=u[g]).inputs,N=0;N<j.outputs.length;N++)if(S[j.outputs[N].id]){for(var E in x)S[x[E].id]=!0,I[j.id]=!0;break}var M=[];for(g=0;g<u.length;g++){var j;if(m[(j=u[g]).id]&&I[j.id]){var G={};for(var E in j.inputs){var z=j.inputs[E];f[z.id]&&(G[E]=z)}var W=Object.assign({},j);W.inputs=G,W.outputs=j.outputs,M.push(W)}}return M}(this.state.activeTape,e,i);if(!a&&s.length===0&&e.length>0)throw new Error("Cannot compute gradient of y=f(x) with respect to x. Make sure that the f you passed encloses all operations that lead from x to y.");return this.tidy("backward",function(){var u,c,d={};d[i.id]=t==null?(u=i.shape,c=R(ae(u),"float32"),X.makeTensor(c,u,"float32")):t,function(m,g,x){for(var E=function(C){var N=g[C],S=[];if(N.outputs.forEach(function(G){var z=m[G.id];z!=null?S.push(z):S.push(null)}),N.gradient==null)throw new Error("Cannot compute gradient: gradient function not found for "+N.kernelName+".");var I=N.gradient(S),M=function(G){if(!(G in I))throw new Error("Cannot backprop through input "+G+". Available gradients found: "+Object.keys(I)+".");var z=x(function(){return I[G]()});if(z.dtype!=="float32")throw new Error("Error in gradient for op "+N.kernelName+". The gradient of input "+G+" must have 'float32' dtype, but has '"+z.dtype+"'");var W=N.inputs[G];if(!Oe(z.shape,W.shape))throw new Error("Error in gradient for op "+N.kernelName+". The gradient of input '"+G+"' has shape '"+z.shape+"', which does not match the shape of the input '"+W.shape+"'");if(m[W.id]==null)m[W.id]=z;else{var V=m[W.id];m[W.id]=V.add(z),V.dispose()}};for(var j in N.inputs)M(j)},w=g.length-1;w>=0;w--)E(w)}(d,s,function(m){return o.tidy(m)});var f=e.map(function(m){return d[m.id]});return o.state.gradientDepth===0&&(o.state.activeTape.forEach(function(m){for(var g=0,x=m.saved;g<x.length;g++)x[g].dispose()}),o.state.activeTape=null),{value:i,grads:f}})},r.prototype.customGrad=function(n){var e=this;return D(et(n),function(){return"The f passed in customGrad(f) must be a function."}),function(){for(var t,a=[],o=0;o<arguments.length;o++)a[o]=arguments[o];D(a.every(function(s){return s instanceof fn}),function(){return"The args passed in customGrad(f)(x1, x2,...) must all be tensors"});var i={};return a.forEach(function(s,u){i[u]=s}),e.runKernelFunc(function(s,u){return D((t=n.apply(void 0,a.concat([u]))).value instanceof fn,function(){return"The function f passed in customGrad(f) must return an object where `obj.value` is a tensor"}),D(et(t.gradFunc),function(){return"The function f passed in customGrad(f) must return an object where `obj.gradFunc` is a function."}),t.value},i,function(s,u){var c=t.gradFunc(s,u),d=Array.isArray(c)?c:[c];D(d.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(...)."}),D(d.every(function(m){return m instanceof fn}),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 f={};return d.forEach(function(m,g){f[g]=function(){return m}}),f})}},r.prototype.readSync=function(n){return this.state.tensorInfo.get(n).backend.readSync(n)},r.prototype.read=function(n){return this.state.tensorInfo.get(n).backend.read(n)},r.prototype.time=function(n){return ve(this,void 0,void 0,function(){var e,t;return ye(this,function(a){switch(a.label){case 0:return e=$(),[4,this.backend.time(n)];case 1:return(t=a.sent()).wallMs=$()-e,[2,t]}})})},r.prototype.track=function(n){return this.state.activeScope!=null&&(n.scopeId=this.state.activeScope.id,this.state.activeScope.track.push(n)),n},Object.defineProperty(r.prototype,"registeredVariables",{get:function(){return this.state.registeredVariables},enumerable:!0,configurable:!0}),r.prototype.reset=function(){for(var n in this.pendingBackendInitId++,this.state.dispose(),this.ENV.reset(),this.state=new Fo,this.registry)this.disposeRegisteredKernels(n),this.registry[n].dispose(),delete this.registry[n];this.backendName=null,this.backendInstance=null,this.pendingBackendInit=null},r.nextTensorId=0,r.nextVariableId=0,r}(),X=function(){var r=function(){if(wa==null){var e=void 0;if(typeof window!="undefined")e=window;else if(typeof Se!="undefined")e=Se;else if(typeof ze!="undefined")e=ze;else{if(typeof self=="undefined")throw new Error("Could not find a global object");e=self}wa=e}return wa}();if(r._tfengine==null){var n=new ne(r);r._tfengine=new mi(n)}return function(e){ot=e}(r._tfengine.ENV),In=function(){return r._tfengine},r._tfengine}();function Po(){return typeof window!="undefined"&&window.document!=null||typeof WorkerGlobalScope!="undefined"}var pr=ee();pr.registerFlag("DEBUG",function(){return!1},function(r){r&&console.warn("Debugging mode is ON. The output of every math call will be downloaded to CPU and checked for NaNs. 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        setOutput(float(bestIndex));
      }
    `};function p(r,n){return["x","y","z","w","u","v"].slice(0,n).map(function(e){return r+"."+e})}function l(r,n){return n===1?[r]:p(r,n)}function h(){var r,n,e,t,a,o,i,s,u,c;return ee().getNumber("WEBGL_VERSION")===2?(r="#version 300 es",n="in",e="out",t="in",a="texture",o="outputColor",i="out vec4 outputColor;",s=`
      bool isnan_custom(float val) {
        return (val > 0.0 || val < 0.0) ? false : val != 0.0;
      }

      bvec4 isnan_custom(vec4 val) {
        return bvec4(isnan_custom(val.x),
          isnan_custom(val.y), isnan_custom(val.z), isnan_custom(val.w));
      }

      #define isnan(value) isnan_custom(value)
    `,u="",c=`
      #define round(value) newRound(value)
      int newRound(float value) {
        return int(floor(value + 0.5));
      }

      ivec4 newRound(vec4 value) {
        return ivec4(floor(value + vec4(0.5)));
      }
    `):(r="",n="attribute",e="varying",t="varying",a="texture2D",o="gl_FragColor",i="",s=`
      #define isnan(value) isnan_custom(value)
      bool isnan_custom(float val) {
        return (val > 0. || val < 1. || val == 0.) ? false : true;
      }
      bvec4 isnan_custom(vec4 val) {
        return bvec4(isnan(val.x), isnan(val.y), isnan(val.z), isnan(val.w));
      }
    `,u=`
      uniform float INFINITY;

      bool isinf(float val) {
        return abs(val) == INFINITY;
      }
      bvec4 isinf(vec4 val) {
        return equal(abs(val), vec4(INFINITY));
      }
    `,c=`
      int round(float value) {
        return int(floor(value + 0.5));
      }

      ivec4 round(vec4 value) {
        return ivec4(floor(value + vec4(0.5)));
      }
    `),{version:r,attribute:n,varyingVs:e,varyingFs:t,texture2D:a,output:o,defineOutput:i,defineSpecialNaN:s,defineSpecialInf:u,defineRound:c}}function v(r,n,e){e===void 0&&(e="index");var t=Rn(n);return t.map(function(a,o){return"int "+r[o]+" = "+e+" / "+a+"; "+(o===t.length-1?"int "+r[o+1]+" = "+e+" - "+r[o]+" * "+a:"index -= "+r[o]+" * "+a)+";"}).join("")}function y(r){var n=Rn(r).map(function(e){return e.toString()});return`
  int getFlatIndex(ivec3 coords) {
    return coords.x * `+n[0]+" + coords.y * "+n[1]+` + coords.z;
  }
`}var b=`
  const float FLOAT_MAX = 1.70141184e38;
  const float FLOAT_MIN = 1.17549435e-38;

  lowp vec4 encode_float(highp float v) {
    if (isnan(v)) {
      return vec4(255, 255, 255, 255);
    }

    highp float av = abs(v);

    if(av < FLOAT_MIN) {
      return vec4(0.0, 0.0, 0.0, 0.0);
    } else if(v > FLOAT_MAX) {
      return vec4(0.0, 0.0, 128.0, 127.0) / 255.0;
    } else if(v < -FLOAT_MAX) {
      return vec4(0.0, 0.0,  128.0, 255.0) / 255.0;
    }

    highp vec4 c = vec4(0,0,0,0);

    highp float e = floor(log2(av));
    highp float m = exp2(fract(log2(av))) - 1.0;

    c[2] = floor(128.0 * m);
    m -= c[2] / 128.0;
    c[1] = floor(32768.0 * m);
    m -= c[1] / 32768.0;
    c[0] = floor(8388608.0 * m);

    highp float ebias = e + 127.0;
    c[3] = floor(ebias / 2.0);
    ebias -= c[3] * 2.0;
    c[2] += floor(ebias) * 128.0;

    c[3] += 128.0 * step(0.0, -v);

    return c / 255.0;
  }
`;function T(r,n,e,t){var a=[];r.forEach(function(g){var x=ae(g.shapeInfo.logicalShape);g.shapeInfo.isUniform?a.push("uniform float "+g.name+(x>1?"["+x+"]":"")+";"):(a.push("uniform sampler2D "+g.name+";"),a.push("uniform int offset"+g.name+";"))});var o,i,s=a.join(`
`),u=r.map(function(g){return function(x,E,w){w===void 0&&(w=!1);var C="";C+=w?O(x):A(x);var N=x.shapeInfo.logicalShape,S=E.logicalShape;return N.length<=S.length&&(C+=w?function(I,M){var j,G=I.name,z=G.charAt(0).toUpperCase()+G.slice(1),W="get"+z+"AtOutCoords",V=I.shapeInfo.logicalShape.length,Z=M.logicalShape.length,J=dr(I.shapeInfo.logicalShape,M.logicalShape),me=le(Z),fe=Z-V,he=["x","y","z","w","u","v"];j=V===0?"":Z<2&&J.length>=1?"coords = 0;":J.map(function(Xe){return"coords."+he[Xe+fe]+" = 0;"}).join(`
`);var Ee="";Ee=Z<2&&V>0?"coords":I.shapeInfo.logicalShape.map(function(Xe,qe){return"coords."+he[qe+fe]}).join(", ");var be="return outputValue;",pe=ae(I.shapeInfo.logicalShape)===1,Ce=ae(M.logicalShape)===1;if(V!==1||pe||Ce){if(pe&&!Ce)be=Z===1?`
        return vec4(outputValue.x, outputValue.x, 0., 0.);
      `:`
        return vec4(outputValue.x);
      `;else if(J.length){var Re=V-2,Le=V-1;J.indexOf(Re)>-1&&J.indexOf(Le)>-1?be="return vec4(outputValue.x);":J.indexOf(Re)>-1?be="return vec4(outputValue.x, outputValue.y, outputValue.x, outputValue.y);":J.indexOf(Le)>-1&&(be="return vec4(outputValue.xx, outputValue.zz);")}}else be=`
      return vec4(outputValue.xy, outputValue.xy);
    `;return`
    vec4 `+W+`() {
      `+me+` coords = getOutputCoords();
      `+j+`
      vec4 outputValue = get`+z+"("+Ee+`);
      `+be+`
    }
  `}(x,E):function(I,M){var j=I.name,G=j.charAt(0).toUpperCase()+j.slice(1),z="get"+G+"AtOutCoords",W=M.texShape,V=I.shapeInfo.texShape,Z=I.shapeInfo.logicalShape.length,J=M.logicalShape.length;if(!I.shapeInfo.isUniform&&Z===J&&I.shapeInfo.flatOffset==null&&Oe(V,W))return`
      float `+z+`() {
        return sampleTexture(`+j+`, resultUV);
      }
    `;var me,fe=le(J),he=dr(I.shapeInfo.logicalShape,M.logicalShape),Ee=J-Z,be=["x","y","z","w","u","v"];me=Z===0?"":J<2&&he.length>=1?"coords = 0;":he.map(function(Ce){return"coords."+be[Ce+Ee]+" = 0;"}).join(`
`);var pe="";return pe=J<2&&Z>0?"coords":I.shapeInfo.logicalShape.map(function(Ce,Re){return"coords."+be[Re+Ee]}).join(", "),`
    float `+z+`() {
      `+fe+` coords = getOutputCoords();
      `+me+`
      return get`+G+"("+pe+`);
    }
  `}(x,E)),C}(g,n,t)}).join(`
`),c=n.texShape,d=h(),f=function(g){return`
    float sampleTexture(sampler2D textureSampler, vec2 uv) {
      return `+g.texture2D+`(textureSampler, uv).r;
    }
  `}(d),m=function(g){return g.version+`
    precision highp float;
    precision highp int;
    precision highp sampler2D;
    `+g.varyingFs+` vec2 resultUV;
    `+g.defineOutput+`
    const vec2 halfCR = vec2(0.5, 0.5);

    struct ivec5
    {
      int x;
      int y;
      int z;
      int w;
      int u;
    };

    struct ivec6
    {
      int x;
      int y;
      int z;
      int w;
      int u;
      int v;
    };

    uniform float NAN;
    `+g.defineSpecialNaN+`
    `+g.defineSpecialInf+`
    `+g.defineRound+`

    int imod(int x, int y) {
      return x - y * (x / y);
    }

    int idiv(int a, int b, float sign) {
      int res = a / b;
      int mod = imod(a, b);
      if (sign < 0. && mod != 0) {
        res -= 1;
      }
      return res;
    }

    //Based on the work of Dave Hoskins
    //https://www.shadertoy.com/view/4djSRW
    #define HASHSCALE1 443.8975
    float random(float seed){
      vec2 p = resultUV * seed;
      vec3 p3  = fract(vec3(p.xyx) * HASHSCALE1);
      p3 += dot(p3, p3.yzx + 19.19);
      return fract((p3.x + p3.y) * p3.z);
    }

    `+P+`
    `+B+`
    `+H+`
  `}(d);return n.isPacked?(o=function(g,x){switch(g.length){case 0:return`
    int getOutputCoords() {
      return 0;
    }
  `;case 1:return function(I,M){var j=[Math.ceil(M[0]/2),Math.ceil(M[1]/2)];return j[0]===1?`
      int getOutputCoords() {
        return 2 * int(resultUV.x * `+j[1]+`.0);
      }
    `:j[1]===1?`
      int getOutputCoords() {
        return 2 * int(resultUV.y * `+j[0]+`.0);
      }
    `:`
    int getOutputCoords() {
      ivec2 resTexRC = ivec2(resultUV.yx *
                             vec2(`+j[0]+", "+j[1]+`));
      return 2 * (resTexRC.x * `+j[1]+` + resTexRC.y);
    }
  `}(0,x);case 2:return function(I,M){var j=[Math.ceil(M[0]/2),Math.ceil(M[1]/2)];if(Oe(I,M))return`
      ivec2 getOutputCoords() {
        return 2 * ivec2(resultUV.yx * vec2(`+j[0]+", "+j[1]+`));
      }
    `;var G=Math.ceil(I[1]/2);return`
    ivec2 getOutputCoords() {
      ivec2 resTexRC = ivec2(resultUV.yx *
                             vec2(`+j[0]+", "+j[1]+`));

      int index = resTexRC.x * `+j[1]+` + resTexRC.y;
      int r = 2 * (index / `+G+`);
      int c = imod(index, `+G+`) * 2;

      return ivec2(r, c);
    }
  `}(g,x);case 3:return E=g,w=x,C=[Math.ceil(w[0]/2),Math.ceil(w[1]/2)],N=Math.ceil(E[2]/2),S=N*Math.ceil(E[1]/2),`
    ivec3 getOutputCoords() {
      ivec2 resTexRC = ivec2(resultUV.yx *
                             vec2(`+C[0]+", "+C[1]+`));
      int index = resTexRC.x * `+C[1]+` + resTexRC.y;

      int b = index / `+S+`;
      index -= b * `+S+`;

      int r = 2 * (index / `+N+`);
      int c = imod(index, `+N+`) * 2;

      return ivec3(b, r, c);
    }
  `;default:return function(I,M){for(var j=[Math.ceil(M[0]/2),Math.ceil(M[1]/2)],G=Math.ceil(I[I.length-1]/2),z=G*Math.ceil(I[I.length-2]/2),W=z,V="",Z="b, r, c",J=2;J<I.length-1;J++)W*=I[I.length-J-1],V=`
      int b`+J+" = index / "+W+`;
      index -= b`+J+" * "+W+`;
    `+V,Z="b"+J+", "+Z;return`
    ivec`+I.length+` getOutputCoords() {
      ivec2 resTexRC = ivec2(resultUV.yx *
                             vec2(`+j[0]+", "+j[1]+`));
      int index = resTexRC.x * `+j[1]+` + resTexRC.y;

      `+V+`

      int b = index / `+z+`;
      index -= b * `+z+`;

      int r = 2 * (index / `+G+`);
      int c = imod(index, `+G+`) * 2;

      return ivec`+I.length+"("+Z+`);
    }
  `}(g,x)}var E,w,C,N,S}(n.logicalShape,c),i=function(g){return`
    void setOutput(vec4 val) {
      `+g.output+` = val;
    }
  `}(d)):(o=function(g,x){switch(g.length){case 0:return`
    int getOutputCoords() {
      return 0;
    }
  `;case 1:return function(C,N){return N[0]===1?`
      int getOutputCoords() {
        return int(resultUV.x * `+N[1]+`.0);
      }
    `:N[1]===1?`
      int getOutputCoords() {
        return int(resultUV.y * `+N[0]+`.0);
      }
    `:`
    int getOutputCoords() {
      ivec2 resTexRC = ivec2(resultUV.yx *
                             vec2(`+N[0]+", "+N[1]+`));
      return resTexRC.x * `+N[1]+` + resTexRC.y;
    }
  `}(0,x);case 2:return function(C,N){return Oe(C,N)?`
      ivec2 getOutputCoords() {
        return ivec2(resultUV.yx * vec2(`+N[0]+", "+N[1]+`));
      }
    `:C[1]===1?`
      ivec2 getOutputCoords() {
        ivec2 resTexRC = ivec2(resultUV.yx *
                               vec2(`+N[0]+", "+N[1]+`));
        int index = resTexRC.x * `+N[1]+` + resTexRC.y;
        return ivec2(index, 0);
      }
    `:C[0]===1?`
      ivec2 getOutputCoords() {
        ivec2 resTexRC = ivec2(resultUV.yx *
                               vec2(`+N[0]+", "+N[1]+`));
        int index = resTexRC.x * `+N[1]+` + resTexRC.y;
        return ivec2(0, index);
      }
    `:`
    ivec2 getOutputCoords() {
      ivec2 resTexRC = ivec2(resultUV.yx *
                             vec2(`+N[0]+", "+N[1]+`));
      int index = resTexRC.x * `+N[1]+` + resTexRC.y;
      int r = index / `+C[1]+`;
      int c = index - r * `+C[1]+`;
      return ivec2(r, c);
    }
  `}(g,x);case 3:return E=x,w=v(["r","c","d"],g),`
    ivec3 getOutputCoords() {
      ivec2 resTexRC = ivec2(resultUV.yx *
                             vec2(`+E[0]+", "+E[1]+`));
      int index = resTexRC.x * `+E[1]+` + resTexRC.y;
      `+w+`
      return ivec3(r, c, d);
    }
  `;case 4:return function(C,N){var S=v(["r","c","d","d2"],C);return`
    ivec4 getOutputCoords() {
      ivec2 resTexRC = ivec2(resultUV.yx *
        vec2(`+N[0]+", "+N[1]+`));
      int index = resTexRC.x * `+N[1]+` + resTexRC.y;
      `+S+`
      return ivec4(r, c, d, d2);
    }
  `}(g,x);case 5:return function(C,N){var S=v(["r","c","d","d2","d3"],C);return`
    ivec5 getOutputCoords() {
      ivec2 resTexRC = ivec2(resultUV.yx * vec2(`+N[0]+`,
                             `+N[1]+`));

      int index = resTexRC.x * `+N[1]+` + resTexRC.y;

      `+S+`

      ivec5 outShape = ivec5(r, c, d, d2, d3);
      return outShape;
    }
  `}(g,x);case 6:return function(C,N){var S=v(["r","c","d","d2","d3","d4"],C);return`
    ivec6 getOutputCoords() {
      ivec2 resTexRC = ivec2(resultUV.yx *
        vec2(`+N[0]+", "+N[1]+`));
      int index = resTexRC.x * `+N[1]+` + resTexRC.y;

      `+S+`

      ivec6 result = ivec6(r, c, d, d2, d3, d4);
      return result;
    }
  `}(g,x);default:throw new Error(g.length+"-D output sampling is not yet supported")}var E,w}(n.logicalShape,c),i=function(g){return`
    void setOutput(float val) {
      `+g.output+` = vec4(val, 0, 0, 0);
    }
  `}(d)),t&&(m+=Y),[m,f,i,s,o,u,e].join(`
`)}function A(r){var n=r.shapeInfo.logicalShape;switch(n.length){case 0:return function(e){var t=e.name,a="get"+t.charAt(0).toUpperCase()+t.slice(1);if(e.shapeInfo.isUniform)return"float "+a+"() {return "+t+";}";var o=e.shapeInfo.texShape,i=o[0],s=o[1];if(i===1&&s===1)return`
      float `+a+`() {
        return sampleTexture(`+t+`, halfCR);
      }
    `;var u=e.shapeInfo.texShape,c=u[0],d=u[1],f=Q(t);return`
    float `+a+`() {
      vec2 uv = uvFromFlat(`+c+", "+d+", "+f+`);
      return sampleTexture(`+t+`, uv);
    }
  `}(r);case 1:return function(e){var t=e.name,a="get"+t.charAt(0).toUpperCase()+t.slice(1);if(e.shapeInfo.isUniform)return`
      float `+a+`(int index) {
        `+ue(e)+`
      }
    `;var o=e.shapeInfo.texShape,i=o[0],s=o[1];if(s===1&&i===1)return`
      float `+a+`(int index) {
        return sampleTexture(`+t+`, halfCR);
      }
    `;var u=Q(t);return s===1?`
      float `+a+`(int index) {
        vec2 uv = vec2(0.5, (float(index + `+u+") + 0.5) / "+i+`.0);
        return sampleTexture(`+t+`, uv);
      }
    `:i===1?`
      float `+a+`(int index) {
        vec2 uv = vec2((float(index + `+u+") + 0.5) / "+s+`.0, 0.5);
        return sampleTexture(`+t+`, uv);
      }
    `:`
    float `+a+`(int index) {
      vec2 uv = uvFromFlat(`+i+", "+s+", index + "+u+`);
      return sampleTexture(`+t+`, uv);
    }
  `}(r);case 2:return function(e){var t=e.shapeInfo.logicalShape,a=e.name,o="get"+a.charAt(0).toUpperCase()+a.slice(1),i=e.shapeInfo.texShape;if(i!=null&&Oe(t,i)){var s=i[0],u=i[1];return`
    float `+o+`(int row, int col) {
      vec2 uv = (vec2(col, row) + halfCR) / vec2(`+u+".0, "+s+`.0);
      return sampleTexture(`+a+`, uv);
    }
  `}var c=St(t),d=c.newShape,f=c.keptDims,m=d;if(m.length<t.length){var g=_e(e,m);return`
      `+A(g)+`
      float `+o+`(int row, int col) {
        return `+o+"("+De(["row","col"],f)+`);
      }
    `}if(e.shapeInfo.isUniform)return`
      float `+o+`(int row, int col) {
        int index = round(dot(vec2(row, col), vec2(`+t[1]+`, 1)));
        `+ue(e)+`
      }
    `;var x=i[0],E=i[1],w=Q(a);return E===1?`
    float `+o+`(int row, int col) {
      float index = dot(vec3(row, col, `+w+"), vec3("+t[1]+`, 1, 1));
      vec2 uv = vec2(0.5, (index + 0.5) / `+x+`.0);
      return sampleTexture(`+a+`, uv);
    }
  `:x===1?`
    float `+o+`(int row, int col) {
      float index = dot(vec3(row, col, `+w+"), vec3("+t[1]+`, 1, 1));
      vec2 uv = vec2((index + 0.5) / `+E+`.0, 0.5);
      return sampleTexture(`+a+`, uv);
    }
  `:`
  float `+o+`(int row, int col) {
    // Explicitly use integer operations as dot() only works on floats.
    int index = row * `+t[1]+" + col + "+w+`;
    vec2 uv = uvFromFlat(`+x+", "+E+`, index);
    return sampleTexture(`+a+`, uv);
  }
`}(r);case 3:return function(e){var t=e.shapeInfo.logicalShape,a=e.name,o="get"+a.charAt(0).toUpperCase()+a.slice(1),i=t[1]*t[2],s=t[2],u=St(t),c=u.newShape,d=u.keptDims,f=c;if(f.length<t.length){var m=_e(e,f);return`
        `+A(m)+`
        float `+o+`(int row, int col, int depth) {
          return `+o+"("+De(["row","col","depth"],d)+`);
        }
      `}if(e.shapeInfo.isUniform)return`
      float `+o+`(int row, int col, int depth) {
        int index = round(dot(vec3(row, col, depth),
                          vec3(`+i+", "+s+`, 1)));
        `+ue(e)+`
      }
    `;var g=e.shapeInfo.texShape,x=g[0],E=g[1],w=e.shapeInfo.flatOffset;if(E===i&&w==null)return`
        float `+o+`(int row, int col, int depth) {
          float texR = float(row);
          float texC = dot(vec2(col, depth), vec2(`+s+`, 1));
          vec2 uv = (vec2(texC, texR) + halfCR) /
                     vec2(`+E+".0, "+x+`.0);
          return sampleTexture(`+a+`, uv);
        }
      `;if(E===s&&w==null)return`
    float `+o+`(int row, int col, int depth) {
      float texR = dot(vec2(row, col), vec2(`+t[1]+`, 1));
      float texC = float(depth);
      vec2 uv = (vec2(texC, texR) + halfCR) / vec2(`+E+".0, "+x+`.0);
      return sampleTexture(`+a+`, uv);
    }
  `;var C=Q(a);return`
      float `+o+`(int row, int col, int depth) {
        // Explicitly use integer operations as dot() only works on floats.
        int index = row * `+i+" + col * "+s+" + depth + "+C+`;
        vec2 uv = uvFromFlat(`+x+", "+E+`, index);
        return sampleTexture(`+a+`, uv);
      }
  `}(r);case 4:return function(e){var t=e.shapeInfo.logicalShape,a=e.name,o="get"+a.charAt(0).toUpperCase()+a.slice(1),i=t[3],s=t[2]*i,u=t[1]*s,c=St(t),d=c.newShape,f=c.keptDims;if(d.length<t.length){var m=_e(e,d);return`
      `+A(m)+`
      float `+o+`(int row, int col, int depth, int depth2) {
        return `+o+"("+De(["row","col","depth","depth2"],f)+`);
      }
    `}if(e.shapeInfo.isUniform)return`
      float `+o+`(int row, int col, int depth, int depth2) {
        int index = round(dot(vec4(row, col, depth, depth2),
                          vec4(`+u+", "+s+", "+i+`, 1)));
        `+ue(e)+`
      }
    `;var g=e.shapeInfo.flatOffset,x=e.shapeInfo.texShape,E=x[0],w=x[1];if(w===u&&g==null)return`
      float `+o+`(int row, int col, int depth, int depth2) {
        float texR = float(row);
        float texC =
            dot(vec3(col, depth, depth2),
                vec3(`+s+", "+i+`, 1));
        vec2 uv = (vec2(texC, texR) + halfCR) /
                   vec2(`+w+".0, "+E+`.0);
        return sampleTexture(`+a+`, uv);
      }
    `;if(w===i&&g==null)return`
      float `+o+`(int row, int col, int depth, int depth2) {
        float texR = dot(vec3(row, col, depth),
                         vec3(`+t[1]*t[2]+", "+t[2]+`, 1));
        float texC = float(depth2);
        vec2 uv = (vec2(texC, texR) + halfCR) /
                  vec2(`+w+".0, "+E+`.0);
        return sampleTexture(`+a+`, uv);
      }
    `;var C=Q(a);return`
    float `+o+`(int row, int col, int depth, int depth2) {
      // Explicitly use integer operations as dot() only works on floats.
      int index = row * `+u+" + col * "+s+` +
          depth * `+i+` + depth2;
      vec2 uv = uvFromFlat(`+E+", "+w+", index + "+C+`);
      return sampleTexture(`+a+`, uv);
    }
  `}(r);case 5:return function(e){var t=e.shapeInfo.logicalShape,a=e.name,o="get"+a.charAt(0).toUpperCase()+a.slice(1),i=t[4],s=t[3]*i,u=t[2]*s,c=t[1]*u,d=St(t),f=d.newShape,m=d.keptDims;if(f.length<t.length){var g=_e(e,f);return`
      `+A(g)+`
      float `+o+`(int row, int col, int depth, int depth2, int depth3) {
        return `+o+"("+De(["row","col","depth","depth2","depth3"],m)+`);
      }
    `}if(e.shapeInfo.isUniform)return`
      float `+o+`(int row, int col, int depth, int depth2, int depth3) {
        float index = dot(
          vec4(row, col, depth, depth2),
          vec4(`+c+", "+u+", "+s+", "+i+`)) +
          depth3;
        `+ue(e)+`
      }
    `;var x=e.shapeInfo.flatOffset,E=e.shapeInfo.texShape,w=E[0],C=E[1];if(C===c&&x==null)return`
      float `+o+`(int row, int col, int depth, int depth2, int depth3) {
        int texR = row;
        float texC = dot(vec4(col, depth, depth2, depth3),
                         vec4(`+u+", "+s+", "+i+`, 1));
        vec2 uv = (vec2(texC, texR) + halfCR) /
                   vec2(`+C+".0, "+w+`.0);
        return sampleTexture(`+a+`, uv);
      }
    `;if(C===i&&x==null)return`
      float `+o+`(int row, int col, int depth, int depth2, int depth3) {
        float texR = dot(
          vec4(row, col, depth, depth2),
          vec4(`+t[1]*t[2]*t[3]+`,
               `+t[2]*t[3]+", "+t[3]+`, 1));
        int texC = depth3;
        vec2 uv = (vec2(texC, texR) + halfCR) /
                  vec2(`+C+".0, "+w+`.0);
        return sampleTexture(`+a+`, uv);
      }
    `;var N=Q(a);return`
    float `+o+`(int row, int col, int depth, int depth2, int depth3) {
      // Explicitly use integer operations as dot() only works on floats.
      int index = row * `+c+" + col * "+u+" + depth * "+s+` +
          depth2 * `+i+" + depth3 + "+N+`;
      vec2 uv = uvFromFlat(`+w+", "+C+`, index);
      return sampleTexture(`+a+`, uv);
    }
  `}(r);case 6:return function(e){var t=e.shapeInfo.logicalShape,a=e.name,o="get"+a.charAt(0).toUpperCase()+a.slice(1),i=St(t),s=i.newShape,u=i.keptDims;if(s.length<t.length){var c=_e(e,s);return`
      `+A(c)+`
      float `+o+`(int row, int col, int depth,
                    int depth2, int depth3, int depth4) {
        return `+o+"("+De(["row","col","depth","depth2","depth3","depth4"],u)+`);
      }
    `}var d=t[5],f=t[4]*d,m=t[3]*f,g=t[2]*m,x=t[1]*g;if(e.shapeInfo.isUniform)return`
      float `+o+`(int row, int col, int depth,
                  int depth2, int depth3, int depth4) {
        int index = round(dot(
          vec4(row, col, depth, depth2),
          vec4(`+x+", "+g+", "+m+", "+f+`)) +
          dot(
            vec2(depth3, depth4),
            vec2(`+d+`, 1)));
        `+ue(e)+`
      }
    `;var E=e.shapeInfo.flatOffset,w=e.shapeInfo.texShape,C=w[0],N=w[1];if(N===x&&E==null)return`
      float `+o+`(int row, int col, int depth,
                    int depth2, int depth3, int depth4) {
        int texR = row;
        float texC = dot(vec4(col, depth, depth2, depth3),
          vec4(`+g+", "+m+", "+f+", "+d+`)) +
               float(depth4);
        vec2 uv = (vec2(texC, texR) + halfCR) /
                   vec2(`+N+".0, "+C+`.0);
        return sampleTexture(`+a+`, uv);
      }
    `;if(N===d&&E==null)return`
      float `+o+`(int row, int col, int depth,
                    int depth2, int depth3, int depth4) {
        float texR = dot(vec4(row, col, depth, depth2),
          vec4(`+t[1]*t[2]*t[3]*t[4]+`,
               `+t[2]*t[3]*t[4]+`,
               `+t[3]*t[4]+`,
               `+t[4]+`)) + float(depth3);
        int texC = depth4;
        vec2 uv = (vec2(texC, texR) + halfCR) /
                  vec2(`+N+".0, "+C+`.0);
        return sampleTexture(`+a+`, uv);
      }
    `;var S=Q(a);return`
    float `+o+`(int row, int col, int depth,
                  int depth2, int depth3, int depth4) {
      // Explicitly use integer operations as dot() only works on floats.
      int index = row * `+x+" + col * "+g+" + depth * "+m+` +
          depth2 * `+f+" + depth3 * "+d+" + depth4 + "+S+`;
      vec2 uv = uvFromFlat(`+C+", "+N+`, index);
      return sampleTexture(`+a+`, uv);
    }
  `}(r);default:throw new Error(n.length+"-D input sampling is not yet supported")}}function O(r){var n,e,t;switch(r.shapeInfo.logicalShape.length){case 0:return n=r.name,e="get"+n.charAt(0).toUpperCase()+n.slice(1),t=h(),`
    vec4 `+e+`() {
      return `+t.texture2D+"("+n+`, halfCR);
    }
  `;case 1:return function(a){var o=a.name,i="get"+o.charAt(0).toUpperCase()+o.slice(1),s=a.shapeInfo.texShape,u=[Math.ceil(s[0]/2),Math.ceil(s[1]/2)],c=h();return`
    vec4 `+i+`(int index) {
      vec2 uv = packedUVfrom1D(
        `+u[0]+", "+u[1]+`, index);
      return `+c.texture2D+"("+o+`, uv);
    }
  `}(r);case 2:return function(a){var o=a.shapeInfo.logicalShape,i=a.name,s="get"+i.charAt(0).toUpperCase()+i.slice(1),u=a.shapeInfo.texShape,c=u[0],d=u[1],f=h();if(u!=null&&Oe(o,u))return`
      vec4 `+s+`(int row, int col) {
        vec2 uv = (vec2(col, row) + halfCR) / vec2(`+d+".0, "+c+`.0);

        return `+f.texture2D+"("+i+`, uv);
      }
    `;var m=[Math.ceil(u[0]/2),Math.ceil(u[1]/2)],g=Math.ceil(o[1]/2);return`
    vec4 `+s+`(int row, int col) {
      vec2 uv = packedUVfrom2D(`+g+", "+m[0]+", "+m[1]+`, row, col);
      return `+f.texture2D+"("+i+`, uv);
    }
  `}(r);case 3:return function(a){var o=a.shapeInfo.logicalShape,i=a.name,s="get"+i.charAt(0).toUpperCase()+i.slice(1),u=a.shapeInfo.texShape,c=[Math.ceil(u[0]/2),Math.ceil(u[1]/2)];if(o[0]===1){var d=o.slice(1),f=_e(a,d);return`
        `+O(f)+`
        vec4 `+s+`(int b, int row, int col) {
          return `+s+"("+De(["b","row","col"],[1,2])+`);
        }
      `}var m=c[0],g=c[1],x=Math.ceil(o[2]/2),E=x*Math.ceil(o[1]/2),w=h();return`
    vec4 `+s+`(int b, int row, int col) {
      vec2 uv = packedUVfrom3D(
        `+m+", "+g+", "+E+", "+x+`, b, row, col);
      return `+w.texture2D+"("+i+`, uv);
    }
  `}(r);default:return function(a){for(var o=a.shapeInfo.logicalShape,i=o.length,s=a.name,u="get"+s.charAt(0).toUpperCase()+s.slice(1),c=a.shapeInfo.texShape,d=[Math.ceil(c[0]/2),Math.ceil(c[1]/2)],f=d[0],m=d[1],g=Math.ceil(o[i-1]/2),x=g*Math.ceil(o[i-2]/2),E="int b, int row, int col",w="b * "+x+" + (row / 2) * "+g+" + (col / 2)",C=2;C<i-1;C++)E="int b"+C+", "+E,x*=o[i-C-1],w="b"+C+" * "+x+" + "+w;var N=h();return`
    vec4 `+u+"("+E+`) {
      int index = `+w+`;
      int texR = index / `+m+`;
      int texC = index - texR * `+m+`;
      vec2 uv = (vec2(texC, texR) + halfCR) / vec2(`+m+", "+f+`);
      return `+N.texture2D+"("+s+`, uv);
    }
  `}(r)}}var P=`
vec2 uvFromFlat(int texNumR, int texNumC, int index) {
  int texR = index / texNumC;
  int texC = index - texR * texNumC;
  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);
}
vec2 packedUVfrom1D(int texNumR, int texNumC, int index) {
  int texelIndex = index / 2;
  int texR = texelIndex / texNumC;
  int texC = texelIndex - texR * texNumC;
  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);
}
`,B=`
vec2 packedUVfrom2D(int texelsInLogicalRow, int texNumR,
  int texNumC, int row, int col) {
  int texelIndex = (row / 2) * texelsInLogicalRow + (col / 2);
  int texR = texelIndex / texNumC;
  int texC = texelIndex - texR * texNumC;
  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);
}
`,H=`
vec2 packedUVfrom3D(int texNumR, int texNumC,
    int texelsInBatch, int texelsInLogicalRow, int b,
    int row, int col) {
  int index = b * texelsInBatch + (row / 2) * texelsInLogicalRow + (col / 2);
  int texR = index / texNumC;
  int texC = index - texR * texNumC;
  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);
}
`,Y=`
  float getChannel(vec4 frag, vec2 innerDims) {
    vec2 modCoord = mod(innerDims, 2.);
    return modCoord.x == 0. ?
      (modCoord.y == 0. ? frag.r : frag.g) :
      (modCoord.y == 0. ? frag.b : frag.a);
  }
  float getChannel(vec4 frag, int dim) {
    float modCoord = mod(float(dim), 2.);
    return modCoord == 0. ? frag.r : frag.g;
  }
`;function Q(r){return"offset"+r}function ue(r){var n=r.name,e=ae(r.shapeInfo.logicalShape);return e<2?"return "+n+";":`
    for (int i = 0; i < `+e+`; i++) {
      if (i == index) {
        return `+n+`[i];
      }
    }
  `}function le(r){if(r<=1)return"int";if(r===2)return"ivec2";if(r===3)return"ivec3";if(r===4)return"ivec4";if(r===5)return"ivec5";if(r===6)return"ivec6";throw Error("GPU for rank "+r+" is not yet supported")}function _e(r,n){var e=JSON.parse(JSON.stringify(r));return e.shapeInfo.logicalShape=n,e}function De(r,n){return n.map(function(e){return r[e]}).join(", ")}var Ue=function(r,n,e,t){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,D(r.length>2,function(){return"Packed arg"+(e.charAt(0).toUpperCase()+e.slice(1))+" supports only inputs with rank above 2."});var a=r[r.length-1],o=Math.ceil(a/n);this.outputShape=r.slice(0,-1),o>1&&this.outputShape.push(o),t||this.variableNames.push("bestIndicesA");var i,s,u=this.outputShape,c=u.length,d=le(c),f=l("coords",c);if(o===1){var m=le(s=c+1);i=`
        `+m+" sourceLocR = "+m+"("+f.join()+`, 0);
        ++`+f[c-1]+`;
        `+m+" sourceLocG = "+m+"("+f.join()+`, 0);
        ++`+f[c-2]+`;
        `+m+" sourceLocA = "+m+"("+f.join()+`, 0);
        --`+f[c-1]+`;
        `+m+" sourceLocB = "+m+"("+f.join()+`, 0);
        --`+f[c-2]+";"}else s=c,i=`
        `+d+` sourceLocR = coords;
        ++`+f[c-1]+`;
        `+d+` sourceLocG = coords;
        ++`+f[c-2]+`;
        `+d+` sourceLocA = coords;
        --`+f[c-1]+`;
        `+d+` sourceLocB = coords;
        --`+f[c-2]+";";var g=["x","y","z","w","u","v"].slice(0,s),x="."+g[s-1],E=g.map(function(z){return"int "+z}),w=l("sourceLocR",s-1).concat("inIdx.r"),C=l("sourceLocG",s-1).concat("inIdx.g"),N=l("sourceLocB",s-1).concat("inIdx.b"),S=l("sourceLocA",s-1).concat("inIdx.a"),I=e==="max"?"greaterThan":"lessThan",M=t?"":`
          inIdx = round(vec4(getBestIndicesAChannel(`+w.join()+`),
                             getBestIndicesAChannel(`+C.join()+`),
                             getBestIndicesAChannel(`+N.join()+`),
                             getBestIndicesAChannel(`+S.join()+")));",j=`vec4(
            getAChannel(`+w.join()+`),
            hasNextCol ? getAChannel(`+C.join()+`) : 0.,
            hasNextRow ? getAChannel(`+N.join()+`) : 0.,
            hasNextRow && hasNextCol ? getAChannel(`+S.join()+") : 0.)",G=t?"":`
      float getBestIndicesAChannel(`+E.join()+`) {
        return getChannel(getBestIndicesA(`+g.join()+`),
                                          vec2(`+g.slice(-2).join()+`));
      }`;this.userCode=`
      float getAChannel(`+E.join()+`) {
        return getChannel(getA(`+g.join()+`),
                               vec2(`+g.slice(-2).join()+`));
      }
      `+G+`
      void main() {
        `+d+` coords = getOutputCoords();
        bool hasNextCol = `+f[c-1]+" < "+(u[c-1]-1)+`;
        bool hasNextRow = `+f[c-2]+" < "+(u[c-2]-1)+`;
        `+i+`
        ivec4 srcIdx = ivec4(sourceLocR`+x+", sourceLocG"+x+`,
          sourceLocB`+x+", sourceLocA"+x+") * "+n+`;
        ivec4 inIdx = srcIdx;
        vec4 bestIndex = vec4(inIdx);
        vec4 bestValue = `+j+`;

        for (int i = 0; i < `+n+`; i++) {
          inIdx = srcIdx;
          `+M+`
          vec4 candidate = `+j+`;
          bvec4 nan = isnan(candidate);
          bvec4 replace = bvec4(
            vec4(`+I+`(candidate, bestValue)) * (vec4(1.0) - vec4(nan)));

          bestValue = vec4(replace.x  ? candidate.x : bestValue.x,
                           replace.y  ? candidate.y : bestValue.y,
                           replace.z  ? candidate.z : bestValue.z,
                           replace.w  ? candidate.w : bestValue.w);
          bestIndex = mix(bestIndex, vec4(inIdx), vec4(replace));
          srcIdx++;
        }
        setOutput(bestIndex);
      }
    `},Fe=function(r){this.variableNames=["dy"],this.outputShape=r.inShape;var n=r.filterHeight,e=r.filterWidth,t=r.strideHeight,a=r.strideWidth,o=r.dilationHeight,i=r.dilationWidth,s=r.effectiveFilterHeight,u=r.effectiveFilterWidth,c=s-1-r.padInfo.top,d=u-1-r.padInfo.left,f=1/(n*e);this.userCode=`
      const ivec2 pads = ivec2(`+c+", "+d+`);
      const float avgMultiplier = float(`+f+`);

      void main() {
        ivec4 coords = getOutputCoords();
        int b = coords[0];
        int d = coords[3];

        ivec2 dyRCCorner = coords.yz - pads;
        int dyRCorner = dyRCCorner.x;
        int dyCCorner = dyRCCorner.y;

        // Convolve dy(?, ?, d) with pos mask(:, :, d) to get dx(xR, xC, d).
        // ? = to be determined. : = across all values in that axis.
        float dotProd = 0.0;
        for (int wR = 0; wR < `+s+`;
            wR += `+o+`) {
          float dyR = float(dyRCorner + wR) / `+t+`.0;

          if (dyR < 0.0 || dyR >= `+r.outHeight+`.0 || fract(dyR) > 0.0) {
            continue;
          }
          int idyR = int(dyR);

          for (int wC = 0; wC < `+u+`;
            wC+= `+i+`) {
            float dyC = float(dyCCorner + wC) / `+a+`.0;

            if (dyC < 0.0 || dyC >= `+r.outWidth+`.0 ||
                fract(dyC) > 0.0) {
              continue;
            }
            int idyC = int(dyC);

            float dyValue = getDy(b, idyR, idyC, d);

            dotProd += dyValue * avgMultiplier;
          }
        }
        setOutput(dotProd);
      }
    `},we=function(r){this.variableNames=["dy"],this.outputShape=r.inShape;var n=r.filterDepth,e=r.filterHeight,t=r.filterWidth,a=r.strideDepth,o=r.strideHeight,i=r.strideWidth,s=r.dilationDepth,u=r.dilationHeight,c=r.dilationWidth,d=r.effectiveFilterDepth,f=r.effectiveFilterHeight,m=r.effectiveFilterWidth,g=d-1-r.padInfo.front,x=f-1-r.padInfo.top,E=m-1-r.padInfo.left,w=1/(n*e*t);this.userCode=`
      const ivec3 pads = ivec3(`+g+", "+x+", "+E+`);
      const float avgMultiplier = float(`+w+`);

      void main() {
        ivec5 coords = getOutputCoords();
        int batch = coords.x;
        int ch = coords.u;

        ivec3 dyCorner = ivec3(coords.y, coords.z, coords.w) - pads;
        int dyDCorner = dyCorner.x;
        int dyRCorner = dyCorner.y;
        int dyCCorner = dyCorner.z;

        // Convolve dy(?, ?, ?, d) with pos mask(:, :, :, ch) to get
        // dx(xD, xR, xC, ch).
        // ? = to be determined. : = across all values in that axis.
        float dotProd = 0.0;

        for (int wD = 0; wD < `+d+`;
            wD += `+s+`) {
          float dyD = float(dyDCorner + wD) / `+a+`.0;

          if (dyD < 0.0 || dyD >= `+r.outDepth+`.0 || fract(dyD) > 0.0) {
            continue;
          }
          int idyD = int(dyD);

          for (int wR = 0; wR < `+f+`;
              wR += `+u+`) {
            float dyR = float(dyRCorner + wR) / `+o+`.0;

            if (dyR < 0.0 || dyR >= `+r.outHeight+`.0 ||
                fract(dyR) > 0.0) {
              continue;
            }
            int idyR = int(dyR);

            for (int wC = 0; wC < `+m+`;
                wC += `+c+`) {
              float dyC = float(dyCCorner + wC) / `+i+`.0;

              if (dyC < 0.0 || dyC >= `+r.outWidth+`.0 ||
                  fract(dyC) > 0.0) {
                continue;
              }
              int idyC = int(dyC);

              float dyValue = getDy(batch, idyD, idyR, idyC, ch);

              dotProd += dyValue * avgMultiplier;
            }
          }
        }
        setOutput(dotProd);
      }
    `},Ne=function(r,n,e,t,a,o){this.outputShape=[],this.variableNames=["x","mean","variance"],nt(r,n),nt(r,e);var i="0.0";t!=null&&(nt(r,t),this.variableNames.push("offset"),i="getOffsetAtOutCoords()");var s="1.0";a!=null&&(nt(r,a),this.variableNames.push("scale"),s="getScaleAtOutCoords()"),this.outputShape=r,this.userCode=`
      void main() {
        float x = getXAtOutCoords();
        float mean = getMeanAtOutCoords();
        float variance = getVarianceAtOutCoords();
        float offset = `+i+`;
        float scale = `+s+`;
        float inv = scale * inversesqrt(variance + float(`+o+`));
        setOutput(dot(vec3(x, -mean, offset), vec3(inv, inv, 1)));
      }
    `},Ze=function(r,n,e,t,a,o){this.packedInputs=!0,this.packedOutput=!0,this.variableNames=["x","mean","variance"],nt(r,n),nt(r,e);var i="vec4(0.0)";t!=null&&(nt(r,t),this.variableNames.push("offset"),i="getOffsetAtOutCoords()");var s="vec4(1.0)";a!=null&&(nt(r,a),this.variableNames.push("scale"),s="getScaleAtOutCoords()"),this.outputShape=r,this.userCode=`
      void main() {
        vec4 offset = `+i+`;
        vec4 scale = `+s+`;

        vec4 x = getXAtOutCoords();
        vec4 mean = getMeanAtOutCoords();
        vec4 variance = getVarianceAtOutCoords();

        vec4 inv = scale * inversesqrt(variance + vec4(`+o+`));

        setOutput((x - mean) * inv + offset);
      }
    `},Bt="return areal * breal - aimag * bimag;",Yt="return areal * bimag + aimag * breal;",At=function(r,n,e){this.variableNames=["AReal","AImag","BReal","BImag"],this.outputShape=nt(n,e),this.userCode=`
      float binaryOpComplex(
          float areal, float aimag, float breal, float bimag) {
        `+r+`
      }

      void main() {
        float areal = getARealAtOutCoords();
        float aimag = getAImagAtOutCoords();
        float breal = getBRealAtOutCoords();
        float bimag = getBImagAtOutCoords();
        setOutput(binaryOpComplex(areal, aimag, breal, bimag));
      }
    `},rt="return a + b;",Kt="return a - b;",on="return a * b;",nn="return (a < 0.) ? b * a : a;",dt=function(r,n,e){this.variableNames=["A","B"],this.outputShape=nt(n,e),this.userCode=`
      float binaryOperation(float a, float b) {
        `+r+`
      }

      void main() {
        float a = getAAtOutCoords();
        float b = getBAtOutCoords();
        setOutput(binaryOperation(a, b));
      }
    `},zn=`
  vec4 aLessThanZero = vec4(lessThan(a, vec4(0.)));
  return (aLessThanZero * (b * a)) + ((vec4(1.0) - aLessThanZero) * a);
`,Ie=function(r,n,e,t){t===void 0&&(t=!1),this.variableNames=["A","B"],this.supportsBroadcasting=!0,this.packedInputs=!0,this.packedOutput=!0,this.outputShape=nt(n,e);var a=this.outputShape.length,o="";if(t)if(a===0||ae(this.outputShape)===1)o=`
          result.y = 0.;
          result.z = 0.;
          result.w = 0.;
        `;else if(o=`
          `+le(a)+` coords = getOutputCoords();
        `,a===1)o+=`
            result.y = (coords + 1) >= `+this.outputShape[0]+` ? 0. : result.y;
            result.z = 0.;
            result.w = 0.;
          `;else{var i=l("coords",a);o+=`
            bool nextRowOutOfBounds =
              (`+i[a-2]+" + 1) >= "+this.outputShape[a-2]+`;
            bool nextColOutOfBounds =
              (`+i[a-1]+" + 1) >= "+this.outputShape[a-1]+`;
            result.y = nextColOutOfBounds ? 0. : result.y;
            result.z = nextRowOutOfBounds ? 0. : result.z;
            result.w = nextColOutOfBounds || nextRowOutOfBounds ? 0. : result.w;
          `}this.userCode=`
      vec4 binaryOperation(vec4 a, vec4 b) {
        `+r+`
      }

      void main() {
        vec4 a = getAAtOutCoords();
        vec4 b = getBAtOutCoords();

        vec4 result = binaryOperation(a, b);
        `+o+`

        setOutput(result);
      }
    `},Sn=function(){function r(n){this.variableNames=["A"],this.outputShape=n,this.userCode=`
      uniform float minVal;
      uniform float maxVal;

      void main() {
        float value = getAAtOutCoords();
        if (isnan(value)) {
          setOutput(value);
          return;
        }

        setOutput(clamp(value, minVal, maxVal));
      }
    `}return r.prototype.getCustomSetupFunc=function(n,e){var t=this;return function(a,o){t.minLoc==null&&(t.minLoc=a.getUniformLocationNoThrow(o,"minVal"),t.maxLoc=a.getUniformLocationNoThrow(o,"maxVal")),a.gl.uniform1f(t.minLoc,n),a.gl.uniform1f(t.maxLoc,e)}},r}(),Ot=function(){function r(n){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=n,this.userCode=`
      uniform float minVal;
      uniform float maxVal;

      void main() {
        vec4 value = getAAtOutCoords();

        if (any(isnan(value))) {
          setOutput(value);
          return;
        }

        setOutput(clamp(value, vec4(minVal), vec4(maxVal)));
      }
    `}return r.prototype.getCustomSetupFunc=function(n,e){var t=this;return function(a,o){t.minLoc==null&&(t.minLoc=a.getUniformLocationNoThrow(o,"minVal"),t.maxLoc=a.getUniformLocationNoThrow(o,"maxVal")),a.gl.uniform1f(t.minLoc,n),a.gl.uniform1f(t.maxLoc,e)}},r}(),sn=function(r){this.variableNames=["real","imag"],this.outputShape=r,this.userCode=`
      void main() {
        float re = abs(getRealAtOutCoords());
        float im = abs(getImagAtOutCoords());
        float mx = max(re, im);

        // sadly the length function in glsl is not underflow-safe
        // (at least not on Intel GPUs). So the safe solution is
        // to ensure underflow-safety in all cases.
        setOutput(
          mx == 0.0 ? 0.0 : mx * length(vec2(1, min(re, im)/mx))
        );
      }
    `},Nr=function(r){this.outputShape=[],this.outputShape=jr(r,1),this.variableNames=r.map(function(s,u){return"T"+u});var n=new Array(r.length-1);n[0]=r[0][1];for(var e=1;e<n.length;e++)n[e]=n[e-1]+r[e][1];var t=["if (yC < "+n[0]+") setOutput(getT0(yR, yC));"];for(e=1;e<n.length;e++){var a=n[e-1];t.push("else if (yC < "+n[e]+") setOutput(getT"+e+"(yR, yC-"+a+"));")}var o=n.length,i=n[n.length-1];t.push("else setOutput(getT"+o+"(yR, yC-"+i+"));"),this.userCode=`
      void main() {
        ivec2 coords = getOutputCoords();
        int yR = coords.x;
        int yC = coords.y;

        `+t.join(`
        `)+`
      }
    `},hr=function(r,n){this.packedInputs=!0,this.packedOutput=!0,this.outputShape=[],this.outputShape=jr(r,n);var e=this.outputShape,t=e.length,a=le(t),o=l("coords",t),i=["x","y","z","w","u","v"].slice(0,t);this.variableNames=r.map(function(w,C){return"T"+C});var s=new Array(r.length-1);s[0]=r[0][n];for(var u=1;u<s.length;u++)s[u]=s[u-1]+r[u][n];var c=i[n],d=i.slice(-2),f=i.join(),m="if ("+c+" < "+s[0]+`) {
        return getChannel(
            getT0(`+f+"), vec2("+d.join()+`));
        }`;for(u=1;u<s.length;u++){var g=s[u-1];m+=`
        if (`+c+" < "+s[u]+"  && "+c+" >= "+s[u-1]+`) {
          return getChannel(
            getT`+u+"("+kr(i,c,g)+`),
            vec2(`+kr(d,c,g)+`));
        }`}var x=s.length,E=s[s.length-1];m+=`
        return getChannel(
          getT`+x+"("+kr(i,c,E)+`),
          vec2(`+kr(d,c,E)+"));",this.userCode=`
      float getValue(`+i.map(function(w){return"int "+w})+`) {
        `+m+`
      }

      void main() {
        `+a+` coords = getOutputCoords();
        vec4 result = vec4(getValue(`+o+`), 0., 0., 0.);

        `+o[t-1]+" = "+o[t-1]+` + 1;
        if (`+o[t-1]+" < "+e[t-1]+`) {
          result.g = getValue(`+o+`);
        }

        `+o[t-2]+" = "+o[t-2]+` + 1;
        if (`+o[t-2]+" < "+e[t-2]+`) {
          result.a = getValue(`+o+`);
        }

        `+o[t-1]+" = "+o[t-1]+` - 1;
        if (`+o[t-2]+" < "+e[t-2]+` &&
            `+o[t-1]+" < "+e[t-1]+`) {
          result.b = getValue(`+o+`);
        }
        setOutput(result);
      }
    `};function kr(r,n,e){var t=r.indexOf(n);return r.map(function(a,o){return o===t?a+" - "+e:a}).join()}var pa=function(r){this.variableNames=["x","dy"],this.outputShape=r.filterShape;var n=r.strideHeight,e=r.strideWidth,t=r.padInfo.top,a=r.padInfo.left,o=r.dataFormat==="channelsLast";this.userCode=`
      void main() {
        ivec4 coords = getOutputCoords();
        int wR = coords.x;
        int wC = coords.y;
        int d1 = coords.z;
        int d2 = coords.w;

        // Convolve x(?, ?, d1) with dy(:, :, d2) to get dw(wR, wC, d1, d2).
        // ? = to be determined. : = across all values in that axis.
        float dotProd = 0.0;

        for (int b = 0; b < `+r.batchSize+`; b++) {
          for (int yR = 0; yR < `+r.outHeight+`; yR++) {
            int xR = wR + yR * `+n+" - "+t+`;

            if (xR < 0 || xR >= `+r.inHeight+`) {
              continue;
            }

            for (int yC = 0; yC < `+r.outWidth+`; yC++) {
              int xC = wC + yC * `+e+" - "+a+`;

              if (xC < 0 || xC >= `+r.inWidth+`) {
                continue;
              }

              if (`+o+`) {
                float dyValue = getDy(b, yR, yC, d2);
                float xValue = getX(b, xR, xC, d1);
                dotProd += (xValue * dyValue);
              } else {
                float dyValue = getDy(b, d2, yR, yC);
                float xValue = getX(b, d1, xR, xC);
                dotProd += (xValue * dyValue);
              }

            }
          }
        }
        setOutput(dotProd);
      }
    `},Fa=function(r){this.variableNames=["dy","W"],this.outputShape=r.inShape;var n=r.filterHeight,e=r.filterWidth,t=r.strideHeight,a=r.strideWidth,o=r.dataFormat==="channelsLast",i=n-1-r.padInfo.top,s=e-1-r.padInfo.left,u=o?1:2,c=o?2:3,d=o?3:1;this.userCode=`
      const ivec2 pads = ivec2(`+i+", "+s+`);

      void main() {
        ivec4 coords = getOutputCoords();
        int batch = coords[0];
        int d1 = coords[`+d+`];

        ivec2 dyCorner = ivec2(coords[`+u+"], coords["+c+`]) - pads;
        int dyRCorner = dyCorner.x;
        int dyCCorner = dyCorner.y;

        // Convolve dy(?, ?, d2) with w(:, :, d1, d2) to compute dx(xR, xC, d1).
        // ? = to be determined. : = across all values in that axis.
        float dotProd = 0.0;
        for (int wR = 0; wR < `+n+`; wR++) {
          float dyR = float(dyRCorner + wR) / `+t+`.0;

          if (dyR < 0.0 || dyR >= `+r.outHeight+`.0 || fract(dyR) > 0.0) {
            continue;
          }
          int idyR = int(dyR);

          int wRPerm = `+n+` - 1 - wR;

          for (int wC = 0; wC < `+e+`; wC++) {
            float dyC = float(dyCCorner + wC) / `+a+`.0;

            if (dyC < 0.0 || dyC >= `+r.outWidth+`.0 ||
                fract(dyC) > 0.0) {
              continue;
            }
            int idyC = int(dyC);

            int wCPerm = `+e+` - 1 - wC;

            for (int d2 = 0; d2 < `+r.outChannels+`; d2++) {

              if (`+o+`) {
                float xValue = getDy(batch, idyR, idyC, d2);
                float wValue = getW(wRPerm, wCPerm, d1, d2);
                dotProd += xValue * wValue;
              } else {
                float xValue = getDy(batch, d2, idyR, idyC);
                float wValue = getW(wRPerm, wCPerm, d1, d2);
                dotProd += xValue * wValue;
              }

            }
          }
        }
        setOutput(dotProd);
      }
    `},jt=function(r){this.variableNames=["x","dy"],this.outputShape=r.filterShape;var n=r.strideDepth,e=r.strideHeight,t=r.strideWidth,a=r.padInfo.front,o=r.padInfo.top,i=r.padInfo.left;this.userCode=`
      void main() {
        ivec5 coords = getOutputCoords();
        int wF = coords.x;
        int wR = coords.y;
        int wC = coords.z;
        int d1 = coords.w;
        int d2 = coords.u;

        float dotProd = 0.0;

        for (int b = 0; b < `+r.batchSize+`; b++) {
          for (int yF = 0; yF < `+r.outDepth+`; yF++) {
            int xF = wF + yF * `+n+" - "+a+`;

            if (xF < 0 || xF >= `+r.inDepth+`) {
              continue;
            }

            for (int yR = 0; yR < `+r.outHeight+`; yR++) {
              int xR = wR + yR * `+e+" - "+o+`;

              if (xR < 0 || xR >= `+r.inHeight+`) {
                continue;
              }

              for (int yC = 0; yC < `+r.outWidth+`; yC++) {
                int xC = wC + yC * `+t+" - "+i+`;

                if (xC < 0 || xC >= `+r.inWidth+`) {
                  continue;
                }

                float dyValue = getDy(b, yF, yR, yC, d2);
                float xValue = getX(b, xF, xR, xC, d1);
                dotProd += (xValue * dyValue);
              }
            }
          }
        }
        setOutput(dotProd);
      }
    `},He=function(r){this.variableNames=["dy","W"],this.outputShape=r.inShape;var n=r.filterDepth,e=r.filterHeight,t=r.filterWidth,a=r.strideDepth,o=r.strideHeight,i=r.strideWidth,s=n-1-r.padInfo.front,u=e-1-r.padInfo.top,c=t-1-r.padInfo.left;this.userCode=`
      const ivec3 pads = ivec3(`+s+", "+u+", "+c+`);

      void main() {
        ivec5 coords = getOutputCoords();
        int batch = coords.x;
        int d1 = coords.u;


        ivec3 dyCorner = ivec3(coords.y, coords.z, coords.w) - pads;
        int dyFCorner = dyCorner.x;
        int dyRCorner = dyCorner.y;
        int dyCCorner = dyCorner.z;

        float dotProd = 0.0;
        for (int wF = 0; wF < `+n+`; wF++) {
          float dyF = float(dyFCorner + wF) / `+a+`.0;

          if (dyF < 0.0 || dyF >= `+r.outDepth+`.0 || fract(dyF) > 0.0) {
            continue;
          }
          int idyF = int(dyF);

          int wFPerm = `+n+` - 1 - wF;

          for (int wR = 0; wR < `+e+`; wR++) {
            float dyR = float(dyRCorner + wR) / `+o+`.0;

            if (dyR < 0.0 || dyR >= `+r.outHeight+`.0 ||
              fract(dyR) > 0.0) {
              continue;
            }
            int idyR = int(dyR);

            int wRPerm = `+e+` - 1 - wR;

            for (int wC = 0; wC < `+t+`; wC++) {
              float dyC = float(dyCCorner + wC) / `+i+`.0;

              if (dyC < 0.0 || dyC >= `+r.outWidth+`.0 ||
                  fract(dyC) > 0.0) {
                continue;
              }
              int idyC = int(dyC);

              int wCPerm = `+t+` - 1 - wC;

              for (int d2 = 0; d2 < `+r.outChannels+`; d2++) {
                float xValue = getDy(batch, idyF, idyR, idyC, d2);
                float wValue = getW(wFPerm, wRPerm, wCPerm, d1, d2);
                dotProd += xValue * wValue;
              }
            }
          }
        }
        setOutput(dotProd);
      }
    `},ct=function(r){this.variableNames=["x","dy"],this.outputShape=r.filterShape;var n=r.strideHeight,e=r.strideWidth,t=r.padInfo.top,a=r.padInfo.left,o=r.outChannels/r.inChannels;this.userCode=`
      void main() {
        ivec4 coords = getOutputCoords();
        int wR = coords.x;
        int wC = coords.y;
        int d1 = coords.z;
        int dm = coords.w;
        int d2 = d1 * `+o+` + dm;

        float dotProd = 0.0;

        // TO DO: Vec4 over the batch size
        for (int b = 0; b < `+r.batchSize+`; b++) {
          for (int yR = 0; yR < `+r.outHeight+`; yR++) {
            int xR = wR + yR * `+n+" - "+t+`;

            if (xR < 0 || xR >= `+r.inHeight+`) {
              continue;
            }

            for (int yC = 0; yC < `+r.outWidth+`; yC++) {
              int xC = wC + yC * `+e+" - "+a+`;

              if (xC < 0 || xC >= `+r.inWidth+`) {
                continue;
              }

              float dyValue = getDy(b, yR, yC, d2);
              float xValue = getX(b, xR, xC, d1);
              dotProd += (xValue * dyValue);
            }
          }
        }
        setOutput(dotProd);
      }
    `},Vt=function(r){this.variableNames=["dy","W"],this.outputShape=r.inShape;var n=r.filterHeight,e=r.filterWidth,t=r.strideHeight,a=r.strideWidth,o=n-1-r.padInfo.top,i=e-1-r.padInfo.left,s=r.outChannels/r.inChannels;this.userCode=`
      const ivec2 pads = ivec2(`+o+", "+i+`);

      void main() {
        ivec4 coords = getOutputCoords();
        int batch = coords[0];
        int d1 = coords[3];
        ivec2 dyCorner = coords.yz - pads;
        int dyRCorner = dyCorner.x;
        int dyCCorner = dyCorner.y;

        float dotProd = 0.0;

        for (int wR = 0; wR < `+n+`; wR++) {
          float dyR = float(dyRCorner + wR) / `+t+`.0;

          if (dyR < 0.0 || dyR >= `+r.outHeight+`.0 || fract(dyR) > 0.0) {
            continue;
          }
          int idyR = int(dyR);

          int wRPerm = `+n+` - 1 - wR;

          for (int wC = 0; wC < `+e+`; wC++) {
            float dyC = float(dyCCorner + wC) / `+a+`.0;

            if (dyC < 0.0 || dyC >= `+r.outWidth+`.0 ||
                fract(dyC) > 0.0) {
              continue;
            }
            int idyC = int(dyC);

            int wCPerm = `+e+` - 1 - wC;

            // TO DO: Vec4 over the channelMul
            for (int dm = 0; dm < `+s+`; dm++) {
              int d2 = d1 * `+s+` + dm;
              float xValue = getDy(batch, idyR, idyC, d2);
              float wValue = getW(wRPerm, wCPerm, d1, dm);
              dotProd += xValue * wValue;
            }
          }
        }
        setOutput(dotProd);
      }
    `},Xn=function(r,n,e,t){n===void 0&&(n=!1),e===void 0&&(e=null),t===void 0&&(t=!1),this.variableNames=["x","W"],this.outputShape=r.outShape;var a=r.padInfo.top,o=r.padInfo.left,i=r.strideHeight,s=r.strideWidth,u=r.dilationHeight,c=r.dilationWidth,d=r.filterHeight,f=r.filterWidth,m=4*Math.floor(r.inChannels/4),g=r.inChannels%4,x=r.dataFormat==="channelsLast",E=x?1:2,w=x?2:3,C=x?3:1,N="",S="";e&&(N=t?`float activation(float a) {
          float b = getPreluActivationWeightsAtOutCoords();
          `+e+`
        }`:`
          float activation(float x) {
            `+e+`
          }
        `,S="result = activation(result);");var I=n?"result += getBiasAtOutCoords();":"";n&&this.variableNames.push("bias"),t&&this.variableNames.push("preluActivationWeights"),this.userCode=`
      `+N+`

      const ivec2 strides = ivec2(`+i+", "+s+`);
      const ivec2 pads = ivec2(`+a+", "+o+`);

      void main() {
        ivec4 coords = getOutputCoords();
        int batch = coords[0];
        int d2 = coords[`+C+`];

        ivec2 xRCCorner =
            ivec2(coords[`+E+"], coords["+w+`]) * strides - pads;
        int xRCorner = xRCCorner.x;
        int xCCorner = xRCCorner.y;

        // Convolve x(?, ?, d1) with w(:, :, d1, d2) to get y(yR, yC, d2).
        // ? = to be determined. : = across all values in that axis.
        float dotProd = 0.0;
        for (int wR = 0; wR < `+d+`; wR++) {
          int xR = xRCorner + wR * `+u+`;

          if (xR < 0 || xR >= `+r.inHeight+`) {
            continue;
          }

          for (int wC = 0; wC < `+f+`; wC++) {
            int xC = xCCorner + wC * `+c+`;

            if (xC < 0 || xC >= `+r.inWidth+`) {
              continue;
            }

            for (int d1 = 0; d1 < `+m+`; d1 += 4) {
              vec4 wValues = vec4(
                getW(wR, wC, d1, d2),
                getW(wR, wC, d1 + 1, d2),
                getW(wR, wC, d1 + 2, d2),
                getW(wR, wC, d1 + 3, d2)
              );

              if (`+x+`) {
                vec4 xValues = vec4(
                  getX(batch, xR, xC, d1),
                  getX(batch, xR, xC, d1 + 1),
                  getX(batch, xR, xC, d1 + 2),
                  getX(batch, xR, xC, d1 + 3)
                );
                dotProd += dot(xValues, wValues);
              } else {
                vec4 xValues = vec4(
                  getX(batch, d1, xR, xC),
                  getX(batch, d1 + 1, xR, xC),
                  getX(batch, d1 + 2, xR, xC),
                  getX(batch, d1 + 3, xR, xC)
                );
                dotProd += dot(xValues, wValues);
              }
            }

            if (`+(g===1)+`) {

              if (`+x+`) {
                dotProd +=
                    getX(batch, xR, xC, `+m+`) *
                    getW(wR, wC, `+m+`, d2);
              } else {
                dotProd +=
                    getX(batch, `+m+`, xR, xC) *
                    getW(wR, wC, `+m+`, d2);
              }

            } else if (`+(g===2)+`) {
              vec2 wValues = vec2(
                getW(wR, wC, `+m+`, d2),
                getW(wR, wC, `+m+` + 1, d2)
              );

              if (`+x+`) {
                vec2 xValues = vec2(
                  getX(batch, xR, xC, `+m+`),
                  getX(batch, xR, xC, `+m+` + 1)
                );
                dotProd += dot(xValues, wValues);
              } else {
                vec2 xValues = vec2(
                  getX(batch, `+m+`, xR, xC),
                  getX(batch, `+m+` + 1, xR, xC)
                );
                dotProd += dot(xValues, wValues);
              }

            } else if (`+(g===3)+`) {
              vec3 wValues = vec3(
                getW(wR, wC, `+m+`, d2),
                getW(wR, wC, `+m+` + 1, d2),
                getW(wR, wC, `+m+` + 2, d2)
              );

              if (`+x+`) {
                vec3 xValues = vec3(
                  getX(batch, xR, xC, `+m+`),
                  getX(batch, xR, xC, `+m+` + 1),
                  getX(batch, xR, xC, `+m+` + 2)
                );
                dotProd += dot(xValues, wValues);
              } else {
                vec3 xValues = vec3(
                  getX(batch, `+m+`, xR, xC),
                  getX(batch, `+m+` + 1, xR, xC),
                  getX(batch, `+m+` + 2, xR, xC)
                );
                dotProd += dot(xValues, wValues);
              }

            }
          }
        }

        float result = dotProd;
        `+I+`
        `+S+`
        setOutput(result);
      }
    `},bt=function(r){this.variableNames=["x","W"],this.outputShape=r.outShape;var n=r.padInfo.front,e=r.padInfo.top,t=r.padInfo.left,a=r.strideDepth,o=r.strideHeight,i=r.strideWidth,s=r.dilationDepth,u=r.dilationHeight,c=r.dilationWidth,d=r.filterDepth,f=r.filterHeight,m=r.filterWidth,g=4*Math.floor(r.inChannels/4),x=r.inChannels%4;this.userCode=`
      const ivec3 strides = ivec3(`+a+", "+o+", "+i+`);
      const ivec3 pads = ivec3(`+n+", "+e+", "+t+`);

      void main() {
        ivec5 coords = getOutputCoords();
        int batch = coords.x;
        int d2 = coords.u;

        ivec3 xFRCCorner = ivec3(coords.y, coords.z, coords.w) * strides - pads;
        int xFCorner = xFRCCorner.x;
        int xRCorner = xFRCCorner.y;
        int xCCorner = xFRCCorner.z;

        // Convolve x(?, ?, ?, d1) with w(:, :, :, d1, d2) to get
        // y(yF, yR, yC, d2). ? = to be determined. : = across all
        // values in that axis.
        float dotProd = 0.0;
        for (int wF = 0; wF < `+d+`; wF++) {
          int xF = xFCorner + wF * `+s+`;

          if (xF < 0 || xF >= `+r.inDepth+`) {
            continue;
          }

          for (int wR = 0; wR < `+f+`; wR++) {
            int xR = xRCorner + wR * `+u+`;

            if (xR < 0 || xR >= `+r.inHeight+`) {
              continue;
            }

            for (int wC = 0; wC < `+m+`; wC++) {
              int xC = xCCorner + wC * `+c+`;

              if (xC < 0 || xC >= `+r.inWidth+`) {
                continue;
              }

              for (int d1 = 0; d1 < `+g+`; d1 += 4) {
                vec4 xValues = vec4(
                  getX(batch, xF, xR, xC, d1),
                  getX(batch, xF, xR, xC, d1 + 1),
                  getX(batch, xF, xR, xC, d1 + 2),
                  getX(batch, xF, xR, xC, d1 + 3)
                );
                vec4 wValues = vec4(
                  getW(wF, wR, wC, d1, d2),
                  getW(wF, wR, wC, d1 + 1, d2),
                  getW(wF, wR, wC, d1 + 2, d2),
                  getW(wF, wR, wC, d1 + 3, d2)
                );

                dotProd += dot(xValues, wValues);
              }

              if (`+(x===1)+`) {
                dotProd +=
                  getX(batch, xF, xR, xC, `+g+`) *
                  getW(wF, wR, wC, `+g+`, d2);
              } else if (`+(x===2)+`) {
                vec2 xValues = vec2(
                  getX(batch, xF, xR, xC, `+g+`),
                  getX(batch, xF, xR, xC, `+g+` + 1)
                );
                vec2 wValues = vec2(
                  getW(wF, wR, wC, `+g+`, d2),
                  getW(wF, wR, wC, `+g+` + 1, d2)
                );
                dotProd += dot(xValues, wValues);
              } else if (`+(x===3)+`) {
                vec3 xValues = vec3(
                  getX(batch, xF, xR, xC, `+g+`),
                  getX(batch, xF, xR, xC, `+g+` + 1),
                  getX(batch, xF, xR, xC, `+g+` + 2)
                );
                vec3 wValues = vec3(
                  getW(wF, wR, wC, `+g+`, d2),
                  getW(wF, wR, wC, `+g+` + 1, d2),
                  getW(wF, wR, wC, `+g+` + 2, d2)
                );
                dotProd += dot(xValues, wValues);
              }
            }
          }
        }
        setOutput(dotProd);
      }
    `},yt=function(r,n,e,t){n===void 0&&(n=!1),e===void 0&&(e=null),t===void 0&&(t=!1),this.variableNames=["x","W"],this.outputShape=r.outShape;var a=r.inHeight,o=r.inWidth,i=r.padInfo.top,s=r.padInfo.left,u=r.strideHeight,c=r.strideWidth,d=r.dilationHeight,f=r.dilationWidth,m=r.filterHeight,g=r.filterWidth,x=r.outChannels/r.inChannels,E="",w="";e&&(E=t?`float activation(float a) {
          float b = getPreluActivationWeightsAtOutCoords();
          `+e+`
        }`:`
          float activation(float x) {
            `+e+`
          }
        `,w="result = activation(result);");var C=n?"result += getBiasAtOutCoords();":"";n&&this.variableNames.push("bias"),t&&this.variableNames.push("preluActivationWeights"),this.userCode=`
      `+E+`

      const ivec2 strides = ivec2(`+u+", "+c+`);
      const ivec2 pads = ivec2(`+i+", "+s+`);

      void main() {
        ivec4 coords = getOutputCoords();
        int batch = coords.x;
        ivec2 xRCCorner = coords.yz * strides - pads;
        int d2 = coords.w;
        int d1 = d2 / `+x+`;
        int q = d2 - d1 * `+x+`;

        int xRCorner = xRCCorner.x;
        int xCCorner = xRCCorner.y;

        // Convolve x(?, ?, d1) with w(:, :, d1, q) to get y(yR, yC, d2).
        // ? = to be determined. : = across all values in that axis.
        float dotProd = 0.0;
        // TO DO(dsmilkov): Flatten the two for loops and vec4 the operations.
        for (int wR = 0; wR < `+m+`; wR++) {
          int xR = xRCorner + wR * `+d+`;

          if (xR < 0 || xR >= `+a+`) {
            continue;
          }

          for (int wC = 0; wC < `+g+`; wC++) {
            int xC = xCCorner + wC * `+f+`;

            if (xC < 0 || xC >= `+o+`) {
              continue;
            }

            float xVal = getX(batch, xR, xC, d1);
            float wVal = getW(wR, wC, d1, q);
            dotProd += xVal * wVal;
          }
        }

        float result = dotProd;
        `+C+`
        `+w+`
        setOutput(result);
      }
    `},ft=function(r,n,e,t){n===void 0&&(n=!1),e===void 0&&(e=null),t===void 0&&(t=!1),this.variableNames=["x","W"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=r.outShape;for(var a=r.inHeight,o=r.inWidth,i=r.padInfo.top,s=r.padInfo.left,u=r.strideHeight,c=r.strideWidth,d=r.dilationHeight,f=r.dilationWidth,m=r.filterHeight,g=r.filterWidth,x=g,E="int xR; int xC; int xCOffset;",w=0;w<m;w++)for(var C=0;C<g;C++)E+=`
          vec4 xTexelR`+w+"C"+2*C+` = vec4(0.);
          vec4 wR`+w+"C"+C+` = vec4(0.);
          vec4 xR`+w+"C"+C+" = vec4(0.);";for(w=0;w<m;w++)for(var N=0;N<x;N++){if(E+=`
          xR = xRCorner + `+w*d+`;
          xC = xCCorner + `+(C=2*N)*f+`;
        `,c===1){if(C<g&&(E+=s%2==1?`
                xCOffset = xC + 1;
                if(xR >= 0 && xR < `+a+" && xCOffset >= 0 && xCOffset < "+o+`) {
                  xTexelR`+w+"C"+C+` = getX(batch, xR, xCOffset, d1);

                  // Need to manually clear unused channels in case
                  // we're reading from recycled texture.
                  if(xCOffset + 1 >= `+o+`) {
                    xTexelR`+w+"C"+C+`.zw = vec2(0.);
                  }
                } else {
                  xTexelR`+w+"C"+C+` = vec4(0.);
                }

                xCOffset = xC + 1 - 2;
                if(xR >= 0 && xR < `+a+" && xCOffset >= 0 && xCOffset < "+o+`) {
                  vec4 previous = getX(batch, xR, xCOffset, d1);

                  // Need to manually clear unused channels in case
                  // we're reading from recycled texture.
                  if(xCOffset + 1 >= `+o+`) {
                    previous.zw = vec2(0.);
                  }

                  xR`+w+"C"+C+" = vec4(previous.zw, xTexelR"+w+"C"+C+`.xy);
                } else {
                  xR`+w+"C"+C+" = vec4(0, 0, xTexelR"+w+"C"+C+`.xy);
                }
              `:`
                if(xR >= 0 && xR < `+a+" && xC >= 0 && xC < "+o+`) {
                  xTexelR`+w+"C"+C+` = getX(batch, xR, xC, d1);
                } else {
                  xTexelR`+w+"C"+C+` = vec4(0.);
                }

                xR`+w+"C"+C+" = xTexelR"+w+"C"+C+`;
              `,C+1<g)){var S=s%2==0?Ye(f):f;f%2==0&&s%2==1||f%2!=0&&s%2!=1?(E+=`
                  xCOffset = xC + `+s%2+" + "+S+`;

                  if(xR >= 0 && xR < `+a+` &&
                    xCOffset >= 0 && xCOffset < `+o+`) {
                    xTexelR`+w+"C"+(C+2)+` = getX(batch, xR, xCOffset, d1);
                  }
                `,f>1&&(E+=`
                    xCOffset -= 2;
                    if(xR >= 0 && xR < `+a+` &&
                      xCOffset >= 0 && xCOffset < `+o+`) {
                      xTexelR`+w+"C"+C+` = getX(batch, xR, xCOffset, d1);
                    } else {
                      xTexelR`+w+"C"+C+` = vec4(0.);
                    }
                  `),E+=`
                  xR`+w+"C"+(C+1)+` = vec4(
                    xTexelR`+w+"C"+C+".zw, xTexelR"+w+"C"+(C+2)+`.xy);
                `):E+=`
                  xCOffset = xC + `+S+`;

                  if(xR >= 0 && xR < `+a+` &&
                    xCOffset >= 0 && xCOffset < `+o+`) {
                    xTexelR`+w+"C"+(C+2)+` = getX(batch, xR, xCOffset, d1);
                  }

                  xR`+w+"C"+(C+1)+" = xTexelR"+w+"C"+(C+2)+`;
                `}}else C<g&&(E+=`
              if(xR >= 0 && xR < `+a+`) {
            `,s%2==1?(E+=`
                xCOffset = xC + 1 - `+c+`;
                if(xCOffset >= 0 && xCOffset < `+o+`) {
                  xTexelR`+w+"C"+C+` = getX(batch, xR, xCOffset, d1);
                } else {
                  xTexelR`+w+"C"+C+` = vec4(0.);
                }

                if(xC + 1 >= 0 && xC + 1 < `+o+`) {
                  xTexelR`+w+"C"+(C+2)+` = getX(batch, xR, xC + 1, d1);
                } else {
                  xTexelR`+w+"C"+(C+2)+` = vec4(0.);
                }

                xR`+w+"C"+C+` = vec4(
                  xTexelR`+w+"C"+C+".zw, xTexelR"+w+"C"+(C+2)+`.zw);
              `,C+1<g&&(E+=`
                  vec4 final = vec4(0.);
                  xCOffset = xC + 1 + `+c+`;
                  if(xCOffset >= 0 && xCOffset < `+o+`) {
                    final = getX(batch, xR, xCOffset, d1);
                  }
                  xR`+w+"C"+(C+1)+" = vec4(xTexelR"+w+"C"+(C+2)+`.xy, final.xy);
                `)):(E+=`
                if(xC >= 0 && xC < `+o+`) {
                  xTexelR`+w+"C"+C+` = getX(batch, xR, xC, d1);
                } else {
                  xTexelR`+w+"C"+C+` = vec4(0.);
                }

                xCOffset = xC + `+c+`;
                if(xCOffset >= 0 && xCOffset < `+o+`) {
                  xTexelR`+w+"C"+(C+2)+` = getX(batch, xR, xCOffset, d1);
                } else {
                  xTexelR`+w+"C"+(C+2)+` = vec4(0.);
                }

                xR`+w+"C"+C+` = vec4(
                  xTexelR`+w+"C"+C+".xy, xTexelR"+w+"C"+(C+2)+`.xy);
              `,C+1<g&&(E+=`
                  xR`+w+"C"+(C+1)+` = vec4(
                    xTexelR`+w+"C"+C+".zw, xTexelR"+w+"C"+(C+2)+`.zw);
                `)),E+="}");C<g&&(E+=`
            vec4 wTexelR`+w+"C"+C+" = getW("+w+", "+C+`, d1, q);
            wR`+w+"C"+C+" = vec4(wTexelR"+w+"C"+C+".xz, wTexelR"+w+"C"+C+`.xz);
          `,C+1<g&&(E+=`
              vec4 wTexelR`+w+"C"+(C+1)+" = getW("+w+", "+(C+1)+`, d1, q);
              wR`+w+"C"+(C+1)+` =
                vec4(wTexelR`+w+"C"+(C+1)+".xz, wTexelR"+w+"C"+(C+1)+".xz);"))}for(w=0;w<m;w++)for(C=0;C<g;C++)E+="dotProd += xR"+w+"C"+C+" * wR"+w+"C"+C+";";var I="",M="";e&&(I=t?`vec4 activation(vec4 a) {
          vec4 b = getPreluActivationWeightsAtOutCoords();
          `+e+`
        }`:`vec4 activation(vec4 x) {
          `+e+`
        }`,M="result = activation(result);");var j=n?"result += getBiasAtOutCoords();":"";n&&this.variableNames.push("bias"),t&&this.variableNames.push("preluActivationWeights"),this.userCode=`
      `+I+`

      const ivec2 strides = ivec2(`+u+", "+c+`);
      const ivec2 pads = ivec2(`+i+", "+s+`);

      void main() {

        ivec4 coords = getOutputCoords();
        int batch = coords.x;
        ivec2 xRCCorner = coords.yz * strides - pads;
        int d2 = coords.w;
        int d1 = d2;
        int q = 0;
        int xRCorner = xRCCorner.x;
        int xCCorner = xRCCorner.y;

        vec4 dotProd = vec4(0.);

        `+E+`

        vec4 result = dotProd;
        `+j+`
        `+M+`
        setOutput(result);
      }
    `},Lt=function(r,n,e,t,a){this.variableNames=["Image","Boxes","BoxInd"],this.outputShape=[];var o=r[0],i=r[1],s=r[2],u=r[3],c=n[0],d=e[0],f=e[1];this.outputShape=[c,d,f,u];var m=t==="bilinear"?1:0,g=[i-1+".0",s-1+".0"],x=g[0],E=g[1],w=d>1?[""+(i-1)/(d-1),"(y2-y1) * height_ratio","y1*"+x+" + float(y)*(height_scale)"]:["0.0","0.0","0.5 * (y1+y2) * "+x],C=w[0],N=w[1],S=w[2],I=f>1?[""+(s-1)/(f-1),"(x2-x1) * width_ratio","x1*"+E+" + float(x)*(width_scale)"]:["0.0","0.0","0.5 * (x1+x2) * "+E],M=I[0],j=I[1],G=I[2];this.userCode=`
      const float height_ratio = float(`+C+`);
      const float width_ratio = float(`+M+`);
      void main() {
        ivec4 coords = getOutputCoords();
        int b = coords[0];
        int y = coords[1];
        int x = coords[2];
        int d = coords[3];

        // get box vals
        float y1 = getBoxes(b,0);
        float x1 = getBoxes(b,1);
        float y2 = getBoxes(b,2);
        float x2 = getBoxes(b,3);

        // get image in batch index
        int bInd = round(getBoxInd(b));
        if(bInd < 0 || bInd >= `+o+`) {
          return;
        }

        float height_scale = `+N+`;
        float width_scale = `+j+`;

        float in_y = `+S+`;
        if( in_y < 0.0 || in_y > `+x+` ) {
          setOutput(float(`+a+`));
          return;
        }
        float in_x = `+G+`;
        if( in_x < 0.0 || in_x > `+E+` ) {
          setOutput(float(`+a+`));
          return;
        }

        vec2 sourceFracIndexCR = vec2(in_x,in_y);
        if(`+m+` == 1) {
          // Compute the four integer indices.
          ivec2 sourceFloorCR = ivec2(sourceFracIndexCR);
          ivec2 sourceCeilCR = ivec2(ceil(sourceFracIndexCR));

          float topLeft = getImage(b, sourceFloorCR.y, sourceFloorCR.x, d);
          float bottomLeft = getImage(b, sourceCeilCR.y, sourceFloorCR.x, d);
          float topRight = getImage(b, sourceFloorCR.y, sourceCeilCR.x, d);
          float bottomRight = getImage(b, sourceCeilCR.y, sourceCeilCR.x, d);

          vec2 fracCR = sourceFracIndexCR - vec2(sourceFloorCR);

          float top = topLeft + (topRight - topLeft) * fracCR.x;
          float bottom = bottomLeft + (bottomRight - bottomLeft) * fracCR.x;
          float newValue = top + (bottom - top) * fracCR.y;
          setOutput(newValue);
        } else {
          // Compute the coordinators of nearest neighbor point.
          ivec2 sourceNearestCR = ivec2(floor(
            sourceFracIndexCR + vec2(0.5,0.5)));
          float newValue = getImage(b, sourceNearestCR.y, sourceNearestCR.x, d);
          setOutput(newValue);
        }
      }
    `},wt=function(r,n,e){this.variableNames=["x"],this.outputShape=r;var t=r.length,a=r[r.length-1],o=e?"<":">";this.userCode=`
      int getIndex(int i) {
        `+(e?"return "+a+" -i - 1;":"return i;")+`
      }

      void main() {
        `+le(t)+` coords = getOutputCoords();
        int end = `+Tt(t,"coords")+`;
        float val = 0.0;
        for (int i = `+a+` - 1; i >= 0; i -= 1) {
          int idx = getIndex(i);
          if (idx `+o+` end) {
            continue;
          }
          if (idx == end && `+n+`) {
            continue;
          }
          `+Tt(t,"coords")+` = idx;
          val += getX(`+function(i,s){if(i===1)return""+s;if(i===2)return s+".x, "+s+".y";if(i===3)return s+".x, "+s+".y, "+s+".z";if(i===4)return s+".x, "+s+".y, "+s+".z, "+s+".w";throw Error("Cumulative sum for rank "+i+" is not yet supported")}(t,"coords")+`);
        }
        setOutput(val);
      }
    `};function Tt(r,n){if(r===1)return""+n;if(r===2)return n+".y";if(r===3)return n+".z";if(r===4)return n+".w";throw Error("Cumulative sum for rank "+r+" is not yet supported")}var Gt=function(r){this.variableNames=["A"],this.packedInputs=!1,this.packedOutput=!0,this.outPackingScheme=Ea.DENSE;var n=Zt(r),e=h();this.outputShape=r,this.userCode=`
      ivec3 outCoordsFromFlatIndex(int index) {
        `+v(["r","c","d"],r)+`
        return ivec3(r, c, d);
      }

      void main() {
        ivec2 resTexRC = ivec2(resultUV.yx *
          vec2(`+n[0]+", "+n[1]+`));
        int index = 4 * (resTexRC.x * `+n[1]+` + resTexRC.y);

        vec4 result = vec4(0.);

        for (int i=0; i<4; i++) {
          int flatIndex = index + i;
          ivec3 rc = outCoordsFromFlatIndex(flatIndex);
          result[i] = getA(rc.x, rc.y, rc.z);
        }

        `+e.output+` = result;
      }
    `},Gr=function(r){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outPackingScheme=Ea.DENSE;var n=Zt(r),e=h();this.outputShape=r,this.userCode=`
      ivec3 outCoordsFromFlatIndex(int index) {
        `+v(["r","c","d"],r)+`
        return ivec3(r, c, d);
      }

      void main() {
        ivec2 resTexRC = ivec2(resultUV.yx *
          vec2(`+n[0]+", "+n[1]+`));
        int index = 4 * (resTexRC.x * `+n[1]+` + resTexRC.y);

        vec4 result = vec4(0.);

        for (int i=0; i<4; i++) {
          int flatIndex = index + i;
          ivec3 rc = outCoordsFromFlatIndex(flatIndex);
          result[i] = getChannel(getA(rc.x, rc.y, rc.z), vec2(rc.y, rc.z));
        }

        `+e.output+` = result;
      }
    `},Sr=function(){function r(n,e,t){this.variableNames=["x"],this.outputShape=[],this.outputShape=n,this.blockSize=e,this.dataFormat=t,this.userCode=`
    void main() {
      ivec4 coords = getOutputCoords();
      int b = coords[0];
      int h = `+this.getHeightCoordString()+`;
      int w = `+this.getWidthCoordString()+`;
      int d = `+this.getDepthCoordString()+`;

      int in_h = h / `+e+`;
      int offset_h = imod(h, `+e+`);
      int in_w = w / `+e+`;
      int offset_w = imod(w, `+e+`);
      int offset_d = (offset_h * `+e+` + offset_w) *
        `+this.getOutputDepthSize()+`;
      int in_d = d + offset_d;

      float result = `+this.getInputSamplingString()+`;
      setOutput(result);
    }
  `}return r.prototype.getHeightCoordString=function(){return this.dataFormat==="NHWC"?"coords[1]":"coords[2]"},r.prototype.getWidthCoordString=function(){return this.dataFormat==="NHWC"?"coords[2]":"coords[3]"},r.prototype.getDepthCoordString=function(){return this.dataFormat==="NHWC"?"coords[3]":"coords[1]"},r.prototype.getOutputDepthSize=function(){return this.dataFormat==="NHWC"?this.outputShape[3]:this.outputShape[1]},r.prototype.getInputSamplingString=function(){return this.dataFormat==="NHWC"?"getX(b, in_h, in_w, in_d)":"getX(b, in_d, in_h, in_w)"},r}(),fa=function(r){this.variableNames=["X"],this.outputShape=[r,r],this.userCode=`
      void main() {
          ivec2 coords = getOutputCoords();
          float val = coords[0] == coords[1] ? getX(coords[0]) : 0.0;
          setOutput(val);
      }
    `},un=function(r){this.variableNames=["A"],this.outTexUsage=An.DOWNLOAD;var n=h();this.outputShape=r,this.userCode=`
      `+b+`

      void main() {
        float x = getAAtOutCoords();
        `+n.output+` = encode_float(x);
      }
    `},$s=function(r){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!1,this.outTexUsage=An.DOWNLOAD;var n=h();this.outputShape=r,this.userCode=`
      `+b+`

      void main() {
        ivec3 coords = getOutputCoords();
        float x = getChannel(getAAtOutCoords(), vec2(coords.y, coords.z));
        `+n.output+` = encode_float(x);
      }
    `},ii=function(r,n,e){e===void 0&&(e=!1),this.variableNames=["A"];var t=h(),a=n[0],o=n[1];this.outputShape=r;var i="result";e&&(i="floor(result * 255. + 0.5)"),this.userCode=`
      `+y(r)+`

      void main() {
        ivec3 coords = getOutputCoords();

        int flatIndex = getFlatIndex(coords);
        int offset = imod(flatIndex, 4);

        flatIndex = idiv(flatIndex, 4, 1.);
        
        int r = flatIndex / `+o+`;
        int c = imod(flatIndex, `+o+`);
        vec2 uv = (vec2(c, r) + halfCR) / vec2(`+o+".0, "+a+`.0);
        vec4 values = `+t.texture2D+`(A, uv);

        float result;

        if(offset == 0) {
          result = values[0];
        } else if(offset == 1) {
          result = values[1];
        } else if(offset == 2) {
          result = values[2];
        } else {
          result = values[3];
        }

        `+t.output+" = vec4("+i+`, 0., 0., 0.);
      }
    `},si=function(r,n,e){e===void 0&&(e=!1),this.variableNames=["A"],this.packedInputs=!1,this.packedOutput=!0;var t=h(),a=n[0],o=n[1];this.outputShape=r;var i="",s="result";e&&(s="floor(result * 255. + 0.5)");for(var u=0;u<=1;u++)for(var c=0;c<=1;c++){var d=2*u+c;i+=`
          localCoords = coords;
          if(localCoords[2] + `+c+" < "+r[2]+`) {
            localCoords[2] += `+c+`;
            if(localCoords[1] + `+u+" < "+r[1]+`) {
              localCoords[1] += `+u+`;

              flatIndex = getFlatIndex(localCoords);
              offset = imod(flatIndex, 4);

              flatIndex = idiv(flatIndex, 4, 1.);

              r = flatIndex / `+o+`;
              c = imod(flatIndex, `+o+`);
              uv = (vec2(c, r) + halfCR) / vec2(`+o+".0, "+a+`.0);
              values = `+t.texture2D+`(A, uv);

              if(offset == 0) {
                result[`+d+`] = values[0];
              } else if(offset == 1) {
                result[`+d+`] = values[1];
              } else if(offset == 2) {
                result[`+d+`] = values[2];
              } else {
                result[`+d+`] = values[3];
              }
            }
          }
        `}this.userCode=`
      `+y(r)+`

      void main() {
        ivec3 coords = getOutputCoords();

        vec4 result = vec4(0.);
        int flatIndex, r, c, offset;
        ivec3 localCoords;
        vec2 uv;
        vec4 values;

        `+i+`

        `+t.output+" = "+s+`;
      }
    `},$i="return real * expR - imag * expI;",od="return real * expI + imag * expR;",rc=function(r,n,e){this.variableNames=["real","imag"];var t=n[1];this.outputShape=n;var a=e?"2.0 * "+Math.PI:"-2.0 * "+Math.PI,o=e?t+".0":"1.0";this.userCode=`
      const float exponentMultiplier = `+a+`;

      float unaryOpComplex(float real, float expR, float imag, float expI) {
        `+r+`
      }

      float mulMatDFT(int batch, int index) {
        float indexRatio = float(index) / float(`+t+`);
        float exponentMultiplierTimesIndexRatio =
            exponentMultiplier * indexRatio;

        float result = 0.0;

        for (int i = 0; i < `+t+`; i++) {
          // x = (-2|2 * PI / N) * index * i;
          float x = exponentMultiplierTimesIndexRatio * float(i);
          float expR = cos(x);
          float expI = sin(x);
          float real = getReal(batch, i);
          float imag = getImag(batch, i);

          result +=
              unaryOpComplex(real, expR, imag, expI) / `+o+`;
        }

        return result;
      }

      void main() {
        ivec2 coords = getOutputCoords();
        setOutput(mulMatDFT(coords[0], coords[1]));
      }
    `},id=function(){function r(n,e){this.outputShape=[],this.variableNames=["x"],this.outputShape=n,this.userCode=`
      uniform float value;
      void main() {
        // Input can be obtained from uniform value.
        setOutput(value);
      }
    `}return r.prototype.getCustomSetupFunc=function(n){var e=this;return function(t,a){e.valueLoc==null&&(e.valueLoc=t.getUniformLocationNoThrow(a,"value")),t.gl.uniform1f(e.valueLoc,n)}},r}(),sd=function(r,n,e){this.variableNames=["A","indices"];var t=r.slice();t[e]=n,this.outputShape=t,this.rank=t.length;var a=le(this.rank),o=function(i,s){var u=i.length;if(u>4)throw Error("Gather for rank "+u+" is not yet supported");if(u===1)return"int(getIndices(resRC))";for(var c=["resRC.x","resRC.y","resRC.z","resRC.w"],d=[],f=0;f<i.length;f++)f===s?d.push("int(getIndices("+c[f]+"))"):d.push(""+c[f]);return d.join()}(r,e);this.userCode=`
      void main() {
        `+a+` resRC = getOutputCoords();
        setOutput(getA(`+o+`));
      }
    `},ud=function(r,n,e){this.sliceDim=r,this.strides=n,this.variableNames=["x","indices"],this.outputShape=e;var t=le(n.length),a=le(e.length),o=this.sliceDim>1?"strides[j]":"strides";this.userCode=`
        `+t+" strides = "+t+"("+this.strides+`);
         void main() {
          `+a+` coords = getOutputCoords();
          int flattenIndex = 0;
          for (int j = 0; j < `+this.sliceDim+`; j++) {
            int index = round(getIndices(coords[0], j));
            flattenIndex += index * `+o+`;
          }
          setOutput(getX(flattenIndex, coords[1]));
        }
      `};function ac(r,n){var e=h();return hs(r,n,e.version+`
    precision highp float;
    `+e.attribute+` vec3 clipSpacePos;
    `+e.attribute+` vec2 uv;
    `+e.varyingVs+` vec2 resultUV;

    void main() {
      gl_Position = vec4(clipSpacePos, 1);
      resultUV = uv;
    }`)}function oc(r,n){return Xa(r,n,new Float32Array([-1,1,0,0,1,-1,-1,0,0,0,1,1,0,1,1,1,-1,0,1,0]))}function ic(r,n){return Uo(r,n,new Uint16Array([0,1,2,2,1,3]))}function ui(r,n,e,t,a,o,i){qa(e,t);var s=Ka(r,n),u=r.TEXTURE_2D;return Me(r,n,function(){return r.bindTexture(u,s)}),Me(r,n,function(){return r.texParameteri(u,r.TEXTURE_WRAP_S,r.CLAMP_TO_EDGE)}),Me(r,n,function(){return r.texParameteri(u,r.TEXTURE_WRAP_T,r.CLAMP_TO_EDGE)}),Me(r,n,function(){return r.texParameteri(u,r.TEXTURE_MIN_FILTER,r.NEAREST)}),Me(r,n,function(){return r.texParameteri(u,r.TEXTURE_MAG_FILTER,r.NEAREST)}),Me(r,n,function(){return r.texImage2D(u,0,a,e,t,0,o,i,null)}),Me(r,n,function(){return r.bindTexture(r.TEXTURE_2D,null)}),s}function sc(r,n,e,t,a){var o=Pr(e,t);return ui(r,n,o[0],o[1],a.internalFormatFloat,a.textureFormatFloat,r.FLOAT)}function uc(r,n,e,t,a){var o=Pr(e,t);return ui(r,n,o[0],o[1],a.internalFormatHalfFloat,a.textureFormatFloat,a.textureTypeHalfFloat)}function cc(r,n,e,t,a){var o=Pr(e,t);return ui(r,n,o[0],o[1],r.RGBA,r.RGBA,r.UNSIGNED_BYTE)}function lc(r,n,e,t,a){var o=Lr(e,t);return ui(r,n,o[0],o[1],a.internalFormatPackedFloat,r.RGBA,r.FLOAT)}function dc(r,n,e,t,a){var o=Lr(e,t);return ui(r,n,o[0],o[1],a.internalFormatPackedHalfFloat,r.RGBA,a.textureTypeHalfFloat)}function hc(r,n,e,t){return Me(r,n,function(){return r.bindBuffer(r.ARRAY_BUFFER,t)}),Yn(r,n,e,"clipSpacePos",t,3,20,0)&&Yn(r,n,e,"uv",t,2,20,12)}function pc(r,n,e,t,a,o,i){var s,u,c;Me(r,n,function(){return r.bindTexture(r.TEXTURE_2D,e)}),o instanceof Uint8Array?(s=new Uint8Array(t*a*4),u=r.UNSIGNED_BYTE,c=r.RGBA):(s=new Float32Array(t*a*4),u=r.FLOAT,c=i.internalFormatPackedFloat),s.set(o),Me(r,n,function(){return r.texImage2D(r.TEXTURE_2D,0,c,t,a,0,r.RGBA,u,s)}),Me(r,n,function(){return r.bindTexture(r.TEXTURE_2D,null)})}function fc(r,n,e,t){Me(r,n,function(){return r.bindTexture(r.TEXTURE_2D,e)}),t.data instanceof Uint8Array?Me(r,n,function(){return r.texImage2D(r.TEXTURE_2D,0,r.RGBA,t.width,t.height,0,r.RGBA,r.UNSIGNED_BYTE,t.data)}):Me(r,n,function(){return r.texImage2D(r.TEXTURE_2D,0,r.RGBA,r.RGBA,r.UNSIGNED_BYTE,t)}),Me(r,n,function(){return r.bindTexture(r.TEXTURE_2D,null)})}function vc(r,n,e,t,a){var o=r.createBuffer();Me(r,n,function(){return r.bindBuffer(r.PIXEL_PACK_BUFFER,o)});var i=16*e*t;return Me(r,n,function(){return r.bufferData(r.PIXEL_PACK_BUFFER,i,r.STREAM_READ)}),Me(r,n,function(){return r.readPixels(0,0,t,e,r.RGBA,r.FLOAT,0)}),Me(r,n,function(){return r.bindBuffer(r.PIXEL_PACK_BUFFER,null)}),o}function mc(r,n,e){var t=r,a=new Float32Array(e);return t.bindBuffer(t.PIXEL_PACK_BUFFER,n),t.getBufferSubData(t.PIXEL_PACK_BUFFER,0,a),t.bindBuffer(t.PIXEL_PACK_BUFFER,null),a}function gc(r,n,e,t,a){var o=Pr(e,t),i=o[0],s=o[1],u=new Uint8Array(e*t*4);return Me(r,n,function(){return r.readPixels(0,0,i,s,a.downloadTextureFormat,r.UNSIGNED_BYTE,u)}),new Float32Array(u.buffer)}function yc(r,n,e,t,a,o,i,s){var u=r,c=new Float32Array(function(d,f){var m=Lr(d,f);return m[0]*m[1]*4}(o,i));return u.bindBuffer(u.PIXEL_PACK_BUFFER,n),u.getBufferSubData(u.PIXEL_PACK_BUFFER,0,c),u.bindBuffer(u.PIXEL_PACK_BUFFER,null),c}function xc(r,n,e,t){var a=new Float32Array(e*t*4);return Me(r,n,function(){return r.readPixels(0,0,t,e,r.RGBA,r.FLOAT,a)}),a}var cd=Object.freeze({createVertexShader:ac,createVertexBuffer:oc,createIndexBuffer:ic,createFloat32MatrixTexture:sc,createFloat16MatrixTexture:uc,createUnsignedBytesMatrixTexture:cc,createPackedMatrixTexture:lc,createFloat16PackedMatrixTexture:dc,bindVertexProgramAttributeStreams:hc,uploadDenseMatrixToTexture:pc,uploadPixelDataToTexture:fc,createBufferFromOutputTexture:vc,downloadFloat32MatrixFromBuffer:mc,downloadByteEncodedFloatMatrixFromOutputTexture:gc,downloadPackedMatrixFromBuffer:yc,downloadMatrixFromPackedOutputTexture:xc}),bc=function(){function r(n){this.outputTexture=null,this.program=null,this.disposed=!1,this.vertexAttrsAreBound=!1,this.itemsToPoll=[];var e=ee().getNumber("WEBGL_VERSION");n!=null?(this.gl=n,Bo(e,n)):this.gl=or(e);var t="WEBGL_color_buffer_float";if(ee().getNumber("WEBGL_VERSION")===1){if(this.textureFloatExtension=Ca(this.gl,this.debug,"OES_texture_float"),Fn(this.gl,"OES_texture_half_float"))this.textureHalfFloatExtension=Ca(this.gl,this.debug,"OES_texture_half_float");else if(ee().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(t),Fn(this.gl,"EXT_color_buffer_half_float"))this.colorBufferHalfFloatExtension=Ca(this.gl,this.debug,"EXT_color_buffer_half_float");else if(ee().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(t="EXT_color_buffer_float",Fn(this.gl,t))this.colorBufferFloatExtension=this.gl.getExtension(t);else{if(!Fn(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=oc(this.gl,this.debug),this.indexBuffer=ic(this.gl,this.debug),this.framebuffer=vr(this.gl,this.debug),this.textureConfig=_a(this.gl,this.textureHalfFloatExtension)}return Object.defineProperty(r.prototype,"debug",{get:function(){return ee().getBool("DEBUG")},enumerable:!0,configurable:!0}),r.prototype.dispose=function(){var n=this;if(!this.disposed){this.program!=null&&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."),this.outputTexture!=null&&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;Me(e,this.debug,function(){return e.finish()}),Me(e,this.debug,function(){return e.bindFramebuffer(e.FRAMEBUFFER,null)}),Me(e,this.debug,function(){return e.deleteFramebuffer(n.framebuffer)}),Me(e,this.debug,function(){return e.bindBuffer(e.ARRAY_BUFFER,null)}),Me(e,this.debug,function(){return e.bindBuffer(e.ELEMENT_ARRAY_BUFFER,null)}),Me(e,this.debug,function(){return e.deleteBuffer(n.indexBuffer)}),this.disposed=!0}},r.prototype.createFloat32MatrixTexture=function(n,e){return this.throwIfDisposed(),sc(this.gl,this.debug,n,e,this.textureConfig)},r.prototype.createFloat16MatrixTexture=function(n,e){return this.throwIfDisposed(),uc(this.gl,this.debug,n,e,this.textureConfig)},r.prototype.createUnsignedBytesMatrixTexture=function(n,e){return this.throwIfDisposed(),cc(this.gl,this.debug,n,e,this.textureConfig)},r.prototype.uploadPixelDataToTexture=function(n,e){this.throwIfDisposed(),fc(this.gl,this.debug,n,e)},r.prototype.uploadDenseMatrixToTexture=function(n,e,t,a){this.throwIfDisposed(),pc(this.gl,this.debug,n,e,t,a,this.textureConfig)},r.prototype.createFloat16PackedMatrixTexture=function(n,e){return this.throwIfDisposed(),dc(this.gl,this.debug,n,e,this.textureConfig)},r.prototype.createPackedMatrixTexture=function(n,e){return this.throwIfDisposed(),lc(this.gl,this.debug,n,e,this.textureConfig)},r.prototype.deleteMatrixTexture=function(n){var e=this;this.throwIfDisposed(),this.outputTexture===n&&($a(this.gl,this.debug,this.framebuffer),this.outputTexture=null),Me(this.gl,this.debug,function(){return e.gl.deleteTexture(n)})},r.prototype.downloadByteEncodedFloatMatrixFromOutputTexture=function(n,e,t){var a=this;return this.downloadMatrixDriver(n,function(){return gc(a.gl,a.debug,e,t,a.textureConfig)})},r.prototype.downloadPackedMatrixFromBuffer=function(n,e,t,a,o,i){return yc(this.gl,n,0,0,0,o,i,this.textureConfig)},r.prototype.downloadFloat32MatrixFromBuffer=function(n,e){return mc(this.gl,n,e)},r.prototype.createBufferFromTexture=function(n,e,t){this.bindTextureToFrameBuffer(n);var a=vc(this.gl,this.debug,e,t,this.textureConfig);return this.unbindTextureToFrameBuffer(),a},r.prototype.createAndWaitForFence=function(){var n=this.createFence(this.gl);return this.pollFence(n)},r.prototype.createFence=function(n){var e,t,a=this;if(ee().getBool("WEBGL_FENCE_API_ENABLED")){var o=n,i=o.fenceSync(o.SYNC_GPU_COMMANDS_COMPLETE,0);n.flush(),t=function(){var s=o.clientWaitSync(i,0,0);return s===o.ALREADY_SIGNALED||s===o.CONDITION_SATISFIED},e=i}else ee().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")>0?(e=this.beginQuery(),this.endQuery(),t=function(){return a.isQueryAvailable(e,ee().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))}):t=function(){return!0};return{query:e,isFencePassed:t}},r.prototype.downloadMatrixFromPackedTexture=function(n,e,t){var a=this;return this.downloadMatrixDriver(n,function(){return xc(a.gl,a.debug,e,t)})},r.prototype.createProgram=function(n){this.throwIfDisposed();var e=this.gl,t=ir(e,this.debug,n),a=ac(e,this.debug),o=Vn(e,this.debug);return Me(e,this.debug,function(){return e.attachShader(o,a)}),Me(e,this.debug,function(){return e.attachShader(o,t)}),sr(e,this.debug,o),this.debug&&Br(e,this.debug,o),this.vertexAttrsAreBound||(this.setProgram(o),this.vertexAttrsAreBound=hc(e,this.debug,this.program,this.vertexBuffer)),o},r.prototype.deleteProgram=function(n){var e=this;this.throwIfDisposed(),n===this.program&&(this.program=null),n!=null&&Me(this.gl,this.debug,function(){return e.gl.deleteProgram(n)})},r.prototype.setProgram=function(n){var e=this;this.throwIfDisposed(),this.program=n,this.program!=null&&this.debug&&Br(this.gl,this.debug,this.program),Me(this.gl,this.debug,function(){return e.gl.useProgram(n)})},r.prototype.getUniformLocation=function(n,e,t){return t===void 0&&(t=!0),this.throwIfDisposed(),t?gi(this.gl,this.debug,n,e):zo(this.gl,n,e)},r.prototype.getAttributeLocation=function(n,e){var t=this;return this.throwIfDisposed(),Me(this.gl,this.debug,function(){return t.gl.getAttribLocation(n,e)})},r.prototype.getUniformLocationNoThrow=function(n,e){return this.throwIfDisposed(),this.gl.getUniformLocation(n,e)},r.prototype.setInputMatrixTexture=function(n,e,t){this.throwIfDisposed(),this.throwIfNoProgram(),Vo(this.gl,this.debug,this.program,n,e,t)},r.prototype.setOutputMatrixTexture=function(n,e,t){this.setOutputMatrixTextureDriver(n,t,e)},r.prototype.setOutputPackedMatrixTexture=function(n,e,t){this.throwIfDisposed();var a=Lr(e,t),o=a[0],i=a[1];this.setOutputMatrixTextureDriver(n,o,i)},r.prototype.setOutputMatrixWriteRegion=function(n,e,t,a){this.setOutputMatrixWriteRegionDriver(t,n,a,e)},r.prototype.setOutputPackedMatrixWriteRegion=function(n,e,t,a){throw new Error("setOutputPackedMatrixWriteRegion not implemented.")},r.prototype.debugValidate=function(){this.program!=null&&Br(this.gl,this.debug,this.program),Mn(this.gl)},r.prototype.executeProgram=function(){this.throwIfDisposed(),this.throwIfNoProgram();var n=this.gl;this.debug&&this.debugValidate(),Me(n,this.debug,function(){return n.drawElements(n.TRIANGLES,6,n.UNSIGNED_SHORT,0)})},r.prototype.blockUntilAllProgramsCompleted=function(){var n=this;this.throwIfDisposed(),Me(this.gl,this.debug,function(){return n.gl.finish()})},r.prototype.getQueryTimerExtension=function(){return this.disjointQueryTimerExtension==null&&(this.disjointQueryTimerExtension=Ca(this.gl,this.debug,ee().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")===2?"EXT_disjoint_timer_query_webgl2":"EXT_disjoint_timer_query")),this.disjointQueryTimerExtension},r.prototype.getQueryTimerExtensionWebGL2=function(){return this.getQueryTimerExtension()},r.prototype.getQueryTimerExtensionWebGL1=function(){return this.getQueryTimerExtension()},r.prototype.beginQuery=function(){if(ee().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")===2){var n=this.gl,e=this.getQueryTimerExtensionWebGL2(),t=n.createQuery();return n.beginQuery(e.TIME_ELAPSED_EXT,t),t}var a=this.getQueryTimerExtensionWebGL1(),o=a.createQueryEXT();return a.beginQueryEXT(a.TIME_ELAPSED_EXT,o),o},r.prototype.endQuery=function(){if(ee().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")!==2){var n=this.getQueryTimerExtensionWebGL1();n.endQueryEXT(n.TIME_ELAPSED_EXT)}else{var e=this.gl,t=this.getQueryTimerExtensionWebGL2();e.endQuery(t.TIME_ELAPSED_EXT)}},r.prototype.waitForQueryAndGetTime=function(n){return ve(this,void 0,void 0,function(){var e=this;return ye(this,function(t){switch(t.label){case 0:return[4,q(function(){return e.disposed||e.isQueryAvailable(n,ee().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))})];case 1:return t.sent(),[2,this.getQueryTime(n,ee().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))]}})})},r.prototype.getQueryTime=function(n,e){if(e===0)return null;if(e===2){var t=this.gl;return t.getQueryParameter(n,t.QUERY_RESULT)/1e6}var a=this.getQueryTimerExtensionWebGL1();return a.getQueryObjectEXT(n,a.QUERY_RESULT_EXT)/1e6},r.prototype.isQueryAvailable=function(n,e){if(e===0)return!0;if(e===2){var t=this.gl,a=this.getQueryTimerExtensionWebGL2(),o=t.getQueryParameter(n,t.QUERY_RESULT_AVAILABLE);return this.disjoint==null&&(this.disjoint=this.gl.getParameter(a.GPU_DISJOINT_EXT)),o&&!this.disjoint}return o=(a=this.getQueryTimerExtensionWebGL1()).getQueryObjectEXT(n,a.QUERY_RESULT_AVAILABLE_EXT),this.disjoint==null&&(this.disjoint=this.gl.getParameter(a.GPU_DISJOINT_EXT)),o&&!this.disjoint},r.prototype.pollFence=function(n){var e=this;return new Promise(function(t){e.addItemToPoll(function(){return n.isFencePassed()},function(){return t()})})},r.prototype.pollItems=function(){for(var n=function(t){for(var a=0;a<t.length&&t[a]();++a);return a-1}(this.itemsToPoll.map(function(t){return t.isDoneFn})),e=0;e<=n;++e)(0,this.itemsToPoll[e].resolveFn)();this.itemsToPoll=this.itemsToPoll.slice(n+1)},r.prototype.addItemToPoll=function(n,e){var t=this;this.itemsToPoll.push({isDoneFn:n,resolveFn:e}),this.itemsToPoll.length>1||q(function(){return t.pollItems(),t.itemsToPoll.length===0})},r.prototype.bindTextureToFrameBuffer=function(n){this.throwIfDisposed(),Ya(this.gl,this.debug,n,this.framebuffer),this.debug&&Mn(this.gl)},r.prototype.unbindTextureToFrameBuffer=function(){this.outputTexture!=null?(Ya(this.gl,this.debug,this.outputTexture,this.framebuffer),this.debug&&Mn(this.gl)):$a(this.gl,this.debug,this.framebuffer)},r.prototype.downloadMatrixDriver=function(n,e){this.bindTextureToFrameBuffer(n);var t=e();return this.unbindTextureToFrameBuffer(),t},r.prototype.setOutputMatrixTextureDriver=function(n,e,t){this.throwIfDisposed();var a=this.gl;Ya(a,this.debug,n,this.framebuffer),this.debug&&Mn(a),this.outputTexture=n,Me(a,this.debug,function(){return a.viewport(0,0,e,t)}),Me(a,this.debug,function(){return a.scissor(0,0,e,t)})},r.prototype.setOutputMatrixWriteRegionDriver=function(n,e,t,a){var o=this;this.throwIfDisposed(),Me(this.gl,this.debug,function(){return o.gl.scissor(n,e,t,a)})},r.prototype.throwIfDisposed=function(){if(this.disposed)throw new Error("Attempted to use disposed GPGPUContext.")},r.prototype.throwIfNoProgram=function(){if(this.program==null)throw new Error("No GPU program is currently set.")},r}();function wc(r,n){if(r.length!==n.length)throw Error("Binary was compiled with "+r.length+" inputs, but was executed with "+n.length+" inputs");r.forEach(function(e,t){var a=e.logicalShape,o=n[t],i=o.shape;if(!Oe(a,i))throw Error("Binary was compiled with different shapes than the current args. Shapes "+a+" and "+i+" must match");if(!e.isUniform||!o.isUniform){var s=e.texShape,u=o.isUniform?null:o.texData.texShape;if(!Oe(s,u))throw Error("Binary was compiled with different texture shapes than the current args. Shape "+s+" and "+u+" must match")}})}var ld=function(r,n,e){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=r;for(var t=e.filterWidth,a=e.inChannels,o=e.strideWidth,i=e.strideHeight,s=e.padInfo,u=e.outWidth,c=e.dilationWidth,d=e.dilationHeight,f=e.dataFormat,m=s.left,g=s.top,x=a*t,E=h(),w=f==="channelsLast",C=w?0:1,N=w?1:2,S="",I=0;I<=1;I++)for(var M=0;M<=1;M++)S+=`
          blockIndex = rc.y + `+M+`;
          pos = rc.x + `+I+`;

          if(blockIndex < `+r[1]+" && pos < "+r[0]+`) {
            offsetY = int(blockIndex / (`+u+")) * "+i+" - "+g+`;
            d0 = offsetY + `+d+" * (pos / "+x+`);

            if(d0 < `+n[C]+` && d0 >= 0) {

              offsetX = int(mod(float(blockIndex), `+u+".) * "+o+". - "+m+`.);
              d1 = offsetX + `+c+" * (int(mod(float(pos), "+x+".) / "+a+`.));

              if(d1 < `+n[N]+` && d1 >= 0) {

                ch = int(mod(float(pos), `+a+`.));

                if (`+w+`) {
                  innerDims = vec2(d1, ch);
                  result[`+(2*I+M)+`] = getChannel(
                    getA(d0, int(innerDims.x),
                    int(innerDims.y)), innerDims);
                } else {
                  innerDims = vec2(d0, d1);
                  result[`+(2*I+M)+`] = getChannel(
                    getA(ch, int(innerDims.x),
                    int(innerDims.y)), innerDims);
                }
              }
            }
          }
        `;this.userCode=`
      void main() {
        ivec2 rc = getOutputCoords();

        vec4 result = vec4(0);

        int blockIndex, pos, offsetY, d0, offsetX, d1, ch;
        vec2 innerDims;

        `+S+`

        `+E.output+` = result;
      }
    `},dd=function(r,n,e,t,a){this.variableNames=["x"],this.outputShape=[];var o,i=n,s=r[3]-1;this.outputShape=r;var u="float("+e+") + float("+t+") * sum";o=a===.5?"inversesqrt("+u+")":a===1?"1.0/("+u+")":"exp(log("+u+") * float(-"+a+"));",this.userCode=`
      void main() {
        ivec4 coords = getOutputCoords();
        int b = coords[0];
        int r = coords[1];
        int c = coords[2];
        int d = coords[3];
        float x = getX(b, r, c, d);
        float sum = 0.0;
        for (int j = -`+i+"; j <= "+i+`; j++) {
          int idx = d + j;
          if (idx >= 0 && idx <=  `+s+`) {
            float z = getX(b, r, c, idx);
            sum += z * z;
          }
        }
        float val = x * `+o+`;
        setOutput(val);
      }
    `},hd=function(r,n,e,t,a){this.variableNames=["inputImage","outputImage","dy"],this.outputShape=[],this.outputShape=r,this.depth=r[3],this.depthRadius=n,this.bias=e,this.alpha=t,this.beta=a,this.userCode=`
      void main() {
        ivec4 coords = getOutputCoords();
        int b = coords[0];
        int r = coords[1];
        int c = coords[2];

        float result = 0.0;
        for (int d = 0; d < `+this.depth+`; ++d) {
          int depthBegin = int(max(0.0, float(d - `+n+`)));
          int depthEnd = int(min(float(`+this.depth+`),
              float(d + `+n+` + 1)));

          const int MIN_DEPTH_BEGIN = 0;
          const int MAX_DEPTH_END = `+this.depth+`;

          float norm = 0.0;
          for (int k = MIN_DEPTH_BEGIN; k < MAX_DEPTH_END; ++k) {
            if (k < depthBegin){
              continue;
            }
            else if (k >= depthBegin && k < depthEnd) {
              norm += getInputImage(b, r, c, k) * getInputImage(b, r, c, k);
            }
            else {
              break;
            }
          }

          norm = float(`+t+") * norm + float("+e+`);

          for(int k = MIN_DEPTH_BEGIN; k < MAX_DEPTH_END; ++k){
            if (k < depthBegin){
              continue;
            }
            else if (k >= depthBegin && k < depthEnd){
              float dyi = -2.0 * float(`+t+`)
                * float(`+a+`)
                * getInputImage(b ,r ,c, k) * getOutputImage(b, r, c, d)
                / norm;
              if (k == d) {
                dyi += pow(norm, -1.0 * `+a+`);
              }
              if (k == coords[3]) {
                dyi *= getDy(b, r, c, d);
                result += dyi;
              }
            }
            else {
              break;
            }
          }
      }
      setOutput(result);
      }
    `},pd=function(r,n,e,t,a){this.variableNames=["x"],this.outputShape=[],this.packedInputs=!0,this.packedOutput=!0;var o,i=n,s=r[3]-1;this.outputShape=r;var u="float("+e+") + float("+t+") * sum";o=a===.5?"inversesqrt("+u+")":a===1?"1.0/("+u+")":"exp(log("+u+") * float(-"+a+"));",this.userCode=`
      void main() {
        ivec4 coords = getOutputCoords();
        int b = coords.x;
        int r = coords.y;
        int c = coords.z;
        int d = coords.w;

        bool hasNextCol = d < `+this.outputShape[3]+`;
        bool hasNextRow = c < `+this.outputShape[2]+`;

        vec4 sum = vec4(0.);
        vec4 xFragAtOutputCoords = getX(b, r, c, d);

        vec4 xAtOutputCoords = vec4(
          getChannel(xFragAtOutputCoords, vec2(c, d)),
          hasNextCol ?
            getChannel(xFragAtOutputCoords, vec2(c, d + 1)) : 0.0,
          hasNextRow ?
            getChannel(xFragAtOutputCoords , vec2(c + 1, d)) : 0.0,
          (hasNextRow && hasNextCol) ?
            getChannel(xFragAtOutputCoords, vec2(c + 1, d + 1)) : 0.0
        );

        int firstChannel = d - `+i+`;
        vec2 cache = vec2(0.);
        if(firstChannel >= 0){
          vec4 firstChannelFrag = getX(b, r, c, firstChannel);
          cache.x = getChannel(firstChannelFrag, vec2(c, firstChannel));
            if(hasNextRow){
              cache.y = getChannel(firstChannelFrag, vec2(c + 1, firstChannel));
            }
        }

        ivec2 depth = ivec2(d, d + 1);
        for (int j = - `+i+"; j <= "+i+`; j++) {
          ivec2 idx = depth + j;
          bvec2 aboveLowerBound = greaterThanEqual(idx, ivec2(0));
          bvec2 belowUpperBound = lessThanEqual(idx, ivec2(`+s+`));

          bool depthInRange = aboveLowerBound.x && belowUpperBound.x;
          bool depthPlusOneInRange = aboveLowerBound.y && belowUpperBound.y;

          if(depthInRange || depthPlusOneInRange){
            vec4 z = vec4(0.);
            vec4 xFragAtCurrentDepth;
            z.xz = cache.xy;
            if(depthPlusOneInRange && hasNextCol){
              xFragAtCurrentDepth = idx.y != d ?
                getX(b, r, c, idx.y) : xFragAtOutputCoords;
              z.y = getChannel(xFragAtCurrentDepth, vec2(c, idx.y));
              if(hasNextRow){
                z.w = getChannel(xFragAtCurrentDepth, vec2(c + 1, idx.y));
              }
            }
            cache.xy = z.yw;
            sum += z * z;
          }
        }
        vec4 result = xAtOutputCoords * `+o+`;
        setOutput(result);
      }
    `},fd=function(r){this.variableNames=["dy","maxPos"],this.outputShape=r.inShape;var n=r.strideHeight,e=r.strideWidth,t=r.dilationHeight,a=r.effectiveFilterHeight,o=r.effectiveFilterWidth,i=a-1-r.padInfo.top,s=o-1-r.padInfo.left,u=a*o-1;this.userCode=`
      const ivec2 pads = ivec2(`+i+", "+s+`);

      void main() {
        ivec4 coords = getOutputCoords();
        int b = coords[0];
        int d = coords[3];

        ivec2 dyRCCorner = coords.yz - pads;
        int dyRCorner = dyRCCorner.x;
        int dyCCorner = dyRCCorner.y;

        // Convolve dy(?, ?, d) with pos mask(:, :, d) to get dx(xR, xC, d).
        // ? = to be determined. : = across all values in that axis.
        float dotProd = 0.0;
        for (int wR = 0; wR < `+a+`;
          wR += `+t+`) {
          float dyR = float(dyRCorner + wR) / `+n+`.0;

          if (dyR < 0.0 || dyR >= `+r.outHeight+`.0 || fract(dyR) > 0.0) {
            continue;
          }
          int idyR = int(dyR);

          for (int wC = 0; wC < `+o+`; wC++) {
            float dyC = float(dyCCorner + wC) / `+e+`.0;

            if (dyC < 0.0 || dyC >= `+r.outWidth+`.0 ||
                fract(dyC) > 0.0) {
              continue;
            }
            int idyC = int(dyC);

            float dyValue = getDy(b, idyR, idyC, d);
            int maxPosValue = `+u+` - int(getMaxPos(b, idyR, idyC, d));

            // Get the current value, check it against the value from the
            // position matrix.
            int curPosValue = wR * `+o+` + wC;
            float mask = float(maxPosValue == curPosValue ? 1.0 : 0.0);

            dotProd += dyValue * mask;
          }
        }
        setOutput(dotProd);
      }
    `},vd=function(r){this.variableNames=["dy","maxPos"],this.outputShape=r.inShape;var n=r.strideDepth,e=r.strideHeight,t=r.strideWidth,a=r.dilationDepth,o=r.dilationHeight,i=r.dilationWidth,s=r.effectiveFilterDepth,u=r.effectiveFilterHeight,c=r.effectiveFilterWidth,d=s-1-r.padInfo.front,f=u-1-r.padInfo.top,m=c-1-r.padInfo.left,g=s*u*c-1;this.userCode=`
      const ivec3 pads = ivec3(`+d+", "+f+", "+m+`);

      void main() {
        ivec5 coords = getOutputCoords();
        int batch = coords.x;
        int ch = coords.u;

        ivec3 dyCorner = ivec3(coords.y, coords.z, coords.w) - pads;
        int dyDCorner = dyCorner.x;
        int dyRCorner = dyCorner.y;
        int dyCCorner = dyCorner.z;

        // Convolve dy(?, ?, ?, ch) with pos mask(:, :, :, d) to get
        // dx(xD, xR, xC, ch).
        // ? = to be determined. : = across all values in that axis.
        float dotProd = 0.0;

        for (int wD = 0; wD < `+s+`;
           wD += `+a+`) {
          float dyD = float(dyDCorner + wD) / `+n+`.0;

          if (dyD < 0.0 || dyD >= `+r.outDepth+`.0 || fract(dyD) > 0.0) {
            continue;
          }
          int idyD = int(dyD);

          for (int wR = 0; wR < `+u+`;
              wR += `+o+`) {
            float dyR = float(dyRCorner + wR) / `+e+`.0;

            if (dyR < 0.0 || dyR >= `+r.outHeight+`.0 ||
                fract(dyR) > 0.0) {
              continue;
            }
            int idyR = int(dyR);

            for (int wC = 0; wC < `+c+`;
                wC += `+i+`) {
              float dyC = float(dyCCorner + wC) / `+t+`.0;

              if (dyC < 0.0 || dyC >= `+r.outWidth+`.0 ||
                  fract(dyC) > 0.0) {
                continue;
              }
              int idyC = int(dyC);

              float dyValue = getDy(batch, idyD, idyR, idyC, ch);
              int maxPosValue = `+g+` -
                  int(getMaxPos(batch, idyD, idyR, idyC, ch));

              // Get the current value, check it against the value from the
              // position matrix.
              int curPosValue =
                  wD * `+u+" * "+c+` +
                  wR * `+c+` + wC;
              float mask = float(maxPosValue == curPosValue ? 1.0 : 0.0);

              dotProd += dyValue * mask;
            }
          }
        }
        setOutput(dotProd);
      }
    `},Js=function(r,n,e,t,a,o,i){e===void 0&&(e=!1),t===void 0&&(t=!1),a===void 0&&(a=!1),o===void 0&&(o=null),i===void 0&&(i=!1),this.variableNames=["matrixA","matrixB"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=n;var s=e?r[1]:r[2],u=Math.ceil(s/2),c=e?"i * 2, rc.y":"rc.y, i * 2",d=t?"rc.z, i * 2":"i * 2, rc.z",f=e?["a.xxyy","a.zzww"]:["a.xxzz","a.yyww"],m=t?["b.xzxz","b.ywyw"]:["b.xyxy","b.zwzw"],g="",x="";o&&(g=i?`vec4 activation(vec4 a) {
          vec4 b = getPreluActivationWeightsAtOutCoords();
          `+o+`
        }`:`vec4 activation(vec4 x) {
          `+o+`
        }`,x="result = activation(result);");var E=a?"result += getBiasAtOutCoords();":"";a&&this.variableNames.push("bias"),i&&this.variableNames.push("preluActivationWeights"),this.userCode=`
      `+g+`

      const float sharedDimension = `+u+`.0;

      vec4 dot2x2ARowBCol(ivec3 rc) {
        vec4 result = vec4(0);
        for (int i = 0; i < `+u+`; i++) {
          vec4 a = getMatrixA(rc.x, `+c+`);
          vec4 b = getMatrixB(rc.x, `+d+`);

          // These swizzled products need to be separately added.
          // See: https://github.com/tensorflow/tfjs/issues/1735
          result += (`+f[0]+" * "+m[0]+`);
          result += (`+f[1]+" * "+m[1]+`);
        }
        return result;
      }

      void main() {
        ivec3 rc = getOutputCoords();
        vec4 result = dot2x2ARowBCol(rc);

        `+E+`

        `+x+`

        setOutput(result);
      }
    `},md=function(){function r(n,e,t){this.variableNames=["probs"],this.outputShape=[n,t],this.userCode=`
      uniform float seed;

      void main() {
        ivec2 coords = getOutputCoords();
        int batch = coords[0];

        float r = random(seed);
        float cdf = 0.0;

        for (int i = 0; i < `+(e-1)+`; i++) {
          cdf += getProbs(batch, i);

          if (r < cdf) {
            setOutput(float(i));
            return;
          }
        }

        // If no other event happened, last event happened.
        setOutput(float(`+(e-1)+`));
      }
    `}return r.prototype.getCustomSetupFunc=function(n){var e=this;return function(t,a){e.seedLoc==null&&(e.seedLoc=t.getUniformLocation(a,"seed")),t.gl.uniform1f(e.seedLoc,n)}},r}(),gd=function(r,n,e,t){this.variableNames=["indices"],this.outputShape=[r,n],this.userCode=`
      void main() {
        ivec2 coords = getOutputCoords();
        int index = round(getIndices(coords.x));
        setOutput(mix(float(`+t+"), float("+e+`),
                      float(index == coords.y)));
      }
    `},yd=function(r){this.variableNames=["A"],this.packedInputs=!1,this.packedOutput=!0,this.outputShape=r;var n=r.length;if(n===0)this.userCode=`
        void main() {
          setOutput(vec4(getA(), 0., 0., 0.));
        }
      `;else{var e=l("rc",n),t=le(n),a=function(s,u,c){if(s===1)return"rc > "+u[0];for(var d="",f=s-2;f<s;f++)d+=c[f]+" >= "+u[f],f<s-1&&(d+="||");return d}(n,r,e),o=function(s,u,c,d){if(s===1)return"";var f=d.slice(-2);return`
    int r = `+f[0]+`;
    int c = `+f[1]+`;
    int rp1 = r + 1;
    int cp1 = c + 1;

    bool cEdge = cp1 >= `+u+`;
    bool rEdge = rp1 >= `+c+`;
  `}(n,r[r.length-1],r[r.length-2],e),i=function(s,u){var c=s.length,d=function(f,m){for(var g=[],x=0;x<=1;x++)for(var E=0;E<=1;E++){for(var w=(x===0?"r":"rp1")+", "+(E===0?"c":"cp1"),C=2;C<f;C++)w=m[m.length-1-C]+","+w;g.push(w)}return g}(c,u);return c===1?`getA(rc),
            rc + 1 >= `+s[0]+` ? 0. : getA(rc + 1),
            0, 0`:"getA("+d[0]+`),
          cEdge ? 0. : getA(`+d[1]+`),
          rEdge ? 0. : getA(`+d[2]+`),
          rEdge || cEdge ? 0. : getA(`+d[3]+")"}(r,e);this.userCode=`
        void main() {
          `+t+` rc = getOutputCoords();

          if(`+a+`) {
            setOutput(vec4(0));
          } else {
            `+o+`

            setOutput(vec4(`+i+`));
          }
        }
      `}},xd=function(r,n,e){this.variableNames=["x"],this.outputShape=n.map(function(u,c){return u[0]+r[c]+u[1]});var t=r.length,a=le(t),o=n.map(function(u){return u[0]}).join(","),i=n.map(function(u,c){return u[0]+r[c]}).join(","),s=["coords[0]","coords[1]","coords[2]","coords[3]"].slice(0,t);this.userCode=t!==1?`
      `+a+" start = "+a+"("+o+`);
      `+a+" end = "+a+"("+i+`);

      void main() {
        `+a+` outC = getOutputCoords();
        if (any(lessThan(outC, start)) || any(greaterThanEqual(outC, end))) {
          setOutput(float(`+e+`));
        } else {
          `+a+` coords = outC - start;
          setOutput(getX(`+s+`));
        }
      }
    `:`
        int start = `+o+`;
        int end = `+i+`;

        void main() {
          int outC = getOutputCoords();
          if (outC < start || outC >= end) {
            setOutput(float(`+e+`));
          } else {
            setOutput(getX(outC - start));
          }
        }
      `},bd=function(r,n,e){this.variableNames=["x"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=n.map(function(w,C){return w[0]+r[C]+w[1]});for(var t=r.length,a=le(t),o=n.map(function(w){return w[0]}).join(","),i=n.map(function(w,C){return w[0]+r[C]}).join(","),s=l("rc",t),u=l("source",t),c=s[t-1]+" < "+this.outputShape[t-1],d=t===1?"source":"vec2("+u.slice(-2).join()+")",f=[a+" rc = outputLoc;",s[t-1]+` += 1;
       if(`+c+`) {
      `,t===1?"":`}
       rc = outputLoc;
       `+s[t-2]+` += 1;
       if(`+s[t-2]+" < "+this.outputShape[t-2]+") {",t===1?"":"  "+s[t-1]+` += 1;
         if(`+c+") {"],m=t===1?"rc < start || rc >= end":"any(lessThan(rc, start)) || any(greaterThanEqual(rc, end))",g="",x=0,E=t===1?2:4;x<E;x++)g+=`
        `+f[x]+`
        if (`+m+`) {
          result[`+x+"] = float("+e+`);
        } else {
          `+a+` source = rc - start;
          result[`+x+"] = getChannel(getX("+u.join()+"), "+d+`);
        }
      `;g+=t===1?"} ":"}}",this.userCode=`
      const `+a+" start = "+a+"("+o+`);
      const `+a+" end = "+a+"("+i+`);

      void main() {
        `+a+` outputLoc = getOutputCoords();
        vec4 result = vec4(0.);
        `+g+`
        setOutput(result);
      }
    `},Qs=function(r,n,e){if(this.variableNames=["x"],n==="avg"&&e)throw new Error("Cannot compute positions for average pool.");var t=r.filterWidth,a=r.strideHeight,o=r.strideWidth,i=r.dilationHeight,s=r.dilationWidth,u=r.effectiveFilterHeight,c=r.effectiveFilterWidth,d=r.padInfo.top,f=r.padInfo.left;this.outputShape=r.outShape;var m=n==="avg",g="0.0";if(m||(g="-1.0 / 1e-20"),e)this.userCode=`
        const ivec2 strides = ivec2(`+a+", "+o+`);
        const ivec2 pads = ivec2(`+d+", "+f+`);

        void main() {
          ivec4 coords = getOutputCoords();
          int batch = coords[0];
          int d = coords[3];

          ivec2 xRCCorner = coords.yz * strides - pads;
          int xRCorner = xRCCorner.x;
          int xCCorner = xRCCorner.y;

          // max/min x(?, ?, d) to get y(yR, yC, d).
          // ? = to be determined
          float minMaxValue = 0.0;
          float minMaxValueFound = 0.0;
          int minMaxPosition = 0;
          float avgValue = 0.0;

          for (int wR = 0; wR < `+u+`;
              wR += `+i+`) {
            int xR = xRCorner + wR;

            if (xR < 0 || xR >= `+r.inHeight+`) {
              continue;
            }

            for (int wC = 0; wC < `+c+`;
                wC += `+s+`) {
              int xC = xCCorner + wC;

              if (xC < 0 || xC >= `+r.inWidth+`) {
                continue;
              }

              float value = getX(batch, xR, xC, d);

              // If a min / max value has already been found, use it. If not,
              // use the current value.
              float currMinMaxValue = mix(
                  value, minMaxValue, minMaxValueFound);
              if (value >= currMinMaxValue) {
                minMaxValue = value;
                minMaxValueFound = 1.0;
                minMaxPosition = wR * `+c+` + wC;
              }
            }
          }
          setOutput(float(minMaxPosition));
        }
      `;else{var x=n+"("+n+"("+n+"(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])";n==="avg"&&(x="avgValue / count");var E=4*Math.floor(t/4),w=t%4,C=`
      if (`+m+`) {
        avgValue += dot(values, ones);
      } else {
        minMaxValue = max(values, minMaxValue);
      }
    `;this.userCode=`
      const ivec2 strides = ivec2(`+a+", "+o+`);
      const ivec2 pads = ivec2(`+d+", "+f+`);
      const float initializationValue = `+g+`;
      const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0);

      float count = 0.0;

      float getValue(int batch, int xR, int xC, int d) {
        if (xC < 0 || xC >= `+r.inWidth+`) {
          return initializationValue;
        }
        count += 1.0;
        return getX(batch, xR, xC, d);
      }

      void main() {
        ivec4 coords = getOutputCoords();
        int batch = coords[0];
        int d = coords[3];

        ivec2 xRCCorner = coords.yz * strides - pads;
        int xRCorner = xRCCorner.x;
        int xCCorner = xRCCorner.y;

        // max/min x(?, ?, d) to get y(yR, yC, d).
        // ? = to be determined
        vec4 minMaxValue = vec4(`+g+`);
        float avgValue = 0.0;
        count = 0.0;

        for (int wR = 0; wR < `+u+`;
            wR += `+i+`) {
          int xR = xRCorner + wR;

          if (xR < 0 || xR >= `+r.inHeight+`) {
            continue;
          }

          for (int wC = 0; wC < `+E+`; wC += 4) {
            int xC = xCCorner + wC * `+s+`;

            vec4 values = vec4(
              getValue(batch, xR, xC, d),
              getValue(batch, xR, xC + `+s+`, d),
              getValue(batch, xR, xC + 2 * `+s+`, d),
              getValue(batch, xR, xC + 3 * `+s+`, d)
            );

            `+C+`
          }

          int xC = xCCorner + `+E+`;
          if (`+(w===1)+`) {
            vec4 values = vec4(
              getValue(batch, xR, xC, d),
              initializationValue,
              initializationValue,
              initializationValue
            );

            `+C+`
          } else if (`+(w===2)+`) {
            vec4 values = vec4(
              getValue(batch, xR, xC, d),
              getValue(batch, xR, xC + `+s+`, d),
              initializationValue,
              initializationValue
            );

            `+C+`
          } else if (`+(w===3)+`) {
            vec4 values = vec4(
              getValue(batch, xR, xC, d),
              getValue(batch, xR, xC + `+s+`, d),
              getValue(batch, xR, xC + 2 * `+s+`, d),
              initializationValue
            );

            `+C+`
          }
        }
        setOutput(`+x+`);
      }
    `}},Zs=function(r,n,e){if(this.variableNames=["x"],n==="avg"&&e)throw new Error("Cannot compute positions for average pool.");var t=r.filterWidth,a=r.strideDepth,o=r.strideHeight,i=r.strideWidth,s=r.dilationDepth,u=r.dilationHeight,c=r.dilationWidth,d=r.effectiveFilterDepth,f=r.effectiveFilterHeight,m=r.effectiveFilterWidth,g=r.padInfo.front,x=r.padInfo.top,E=r.padInfo.left;this.outputShape=r.outShape;var w=n==="avg",C="0.0";if(w||(C="-1.0 / 1e-20"),e)this.userCode=`
        const ivec3 strides =
            ivec3(`+a+", "+o+", "+i+`);
        const ivec3 pads = ivec3(`+g+", "+x+", "+E+`);

        void main() {
          ivec5 coords = getOutputCoords();
          int batch = coords.x;
          int ch = coords.u;

          ivec3 xCorner = ivec3(coords.y, coords.z, coords.w) * strides - pads;
          int xDCorner = xCorner.x;
          int xRCorner = xCorner.y;
          int xCCorner = xCorner.z;

          // max/min x(?, ?, ?, ch) to get y(yD, yR, yC, ch).
          // ? = to be determined
          float minMaxValue = 0.0;
          float minMaxValueFound = 0.0;
          int minMaxPosition = 0;

          for (int wD = 0; wD < `+d+`;
              wD += `+s+`) {
            int xD = xDCorner + wD;

            if (xD < 0 || xD >= `+r.inDepth+`) {
              continue;
            }

            for (int wR = 0; wR < `+f+`;
                wR += `+u+`) {
              int xR = xRCorner + wR;

              if (xR < 0 || xR >= `+r.inHeight+`) {
                continue;
              }

              for (int wC = 0; wC < `+m+`;
                  wC += `+c+`) {
                int xC = xCCorner + wC;

                if (xC < 0 || xC >= `+r.inWidth+`) {
                  continue;
                }

                float value = getX(batch, xD, xR, xC, ch);

                // If a min / max value has already been found, use it. If not,
                // use the current value.
                float currMinMaxValue = mix(
                    value, minMaxValue, minMaxValueFound);
                if (value >= currMinMaxValue) {
                  minMaxValue = value;
                  minMaxValueFound = 1.0;
                  minMaxPosition =
                      wD * `+f+" * "+m+` +
                      wR * `+m+` + wC;;
                }
              }
            }
          }
          setOutput(float(minMaxPosition));
        }
      `;else{var N=n+"("+n+"("+n+"(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])";n==="avg"&&(N="avgValue / count");var S=4*Math.floor(t/4),I=t%4,M=`
      if (`+w+`) {
        avgValue += dot(values, ones);
      } else {
        minMaxValue = max(values, minMaxValue);
      }
    `;this.userCode=`
      const ivec3 strides =
        ivec3(`+a+", "+o+", "+i+`);
      const ivec3 pads = ivec3(`+g+", "+x+", "+E+`);
      const float initializationValue = `+C+`;
      const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0);

      float count = 0.0;

      float getValue(int batch, int xD, int xR, int xC, int ch) {
        if (xC < 0 || xC >= `+r.inWidth+`) {
          return initializationValue;
        }
        count += 1.0;
        return getX(batch, xD, xR, xC, ch);
      }

      void main() {
        ivec5 coords = getOutputCoords();
        int batch = coords.x;
        int ch = coords.u;

        ivec3 xCorner = ivec3(coords.y, coords.z, coords.w) * strides - pads;
        int xDCorner = xCorner.x;
        int xRCorner = xCorner.y;
        int xCCorner = xCorner.z;

        // max/min x(?, ?, ?, d) to get y(yD, yR, yC, ch).
        // ? = to be determined
        vec4 minMaxValue = vec4(`+C+`);
        float avgValue = 0.0;
        count = 0.0;

        for (int wD = 0; wD < `+d+`;
            wD += `+s+`) {
          int xD = xDCorner + wD;

          if (xD < 0 || xD >= `+r.inDepth+`) {
            continue;
          }

          for (int wR = 0; wR < `+f+`;
            wR += `+u+`) {
            int xR = xRCorner + wR;

            if (xR < 0 || xR >= `+r.inHeight+`) {
              continue;
            }

            for (int wC = 0; wC < `+S+`; wC += 4) {
              int xC = xCCorner + wC * `+c+`;

              vec4 values = vec4(
                getValue(batch, xD, xR, xC, ch),
                getValue(batch, xD, xR, xC + `+c+`, ch),
                getValue(batch, xD, xR, xC + 2 * `+c+`, ch),
                getValue(batch, xD, xR, xC + 3 * `+c+`, ch)
              );

              `+M+`
            }

            int xC = xCCorner + `+S+`;
            if (`+(I===1)+`) {
              vec4 values = vec4(
                getValue(batch, xD, xR, xC, ch),
                initializationValue,
                initializationValue,
                initializationValue
              );

              `+M+`
            } else if (`+(I===2)+`) {
              vec4 values = vec4(
                getValue(batch, xD, xR, xC, ch),
                getValue(batch, xD, xR, xC + `+c+`, ch),
                initializationValue,
                initializationValue
              );

              `+M+`
            } else if (`+(I===3)+`) {
              vec4 values = vec4(
                getValue(batch, xD, xR, xC, ch),
                getValue(batch, xD, xR, xC + `+c+`, ch),
                getValue(batch, xD, xR, xC + 2 * `+c+`, ch),
                initializationValue
              );

              `+M+`
            }
          }
          setOutput(`+N+`);
        }
      }
    `}},wd=function(r,n){this.variableNames=["x"];var e=r.windowSize,t=r.batchSize,a=r.inSize,o=Math.ceil(a/e);this.outputShape=[t,o];var i="0.0",s="";n==="prod"?i="1.0":n==="min"?(i="1.0 / 1e-20",s="min"):n==="max"&&(i="-1.0 / 1e-20",s="max");var u=n+"("+n+"("+n+"(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])";n==="sum"?u="sumValue":n==="prod"?u="prodValue":n==="all"?u="allValue":n==="any"&&(u="anyValue");var c=4*Math.floor(e/4),d=e%4,f=`
      if (`+(n==="sum")+`) {
        sumValue += dot(values, ones);
      } else if (`+(n==="prod")+`) {
        vec2 tmp = vec2(values[0], values[1]) * vec2(values[2], values[3]);
        prodValue *= tmp[0] * tmp[1];
      } else {
        minMaxValue = `+s+`(values, minMaxValue);
      }
    `,m="vec4";n==="all"?(i="1.0",f=`
        bool reducedAllValue = all(values);
        float floatedReducedAllValue = float(reducedAllValue);
        allValue = float(allValue >= 1.0 && floatedReducedAllValue >= 1.0);
      `,m="bvec4"):n==="any"&&(i="0.0",f=`
        bool reducedAnyValue = any(values);
        float floatedReducedAnyValue = float(reducedAnyValue);
        anyValue = float(anyValue >= 1.0 || floatedReducedAnyValue >= 1.0);
      `,m="bvec4");var g="";a%e>0&&(g=`
        if (inIdx < 0 || inIdx >= `+a+`) {
          return initializationValue;
        }
      `),this.userCode=`
      const float initializationValue = `+i+`;
      const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0);

      float getValue(int batch, int inIdx) {
        `+g+`
        return getX(batch, inIdx);
      }

      void main() {
        ivec2 coords = getOutputCoords();
        int batch = coords[0];
        int outIdx = coords[1];
        int inOffset = outIdx * `+e+`;

        vec4 minMaxValue = vec4(`+i+`);
        float prodValue = 1.0;
        float sumValue = 0.0;
        float allValue = 1.0;
        float anyValue = 0.0;

        for (int i = 0; i < `+c+`; i += 4) {
          int inIdx = inOffset + i;
          `+m+" values = "+m+`(
            getValue(batch, inIdx),
            getValue(batch, inIdx + 1),
            getValue(batch, inIdx + 2),
            getValue(batch, inIdx + 3)
          );

          `+f+`
        }

        int inIdx = inOffset + `+c+`;
        if (`+(d===1)+`) {
          `+m+" values = "+m+`(
            getValue(batch, inIdx),
            initializationValue,
            initializationValue,
            initializationValue
          );

          `+f+`
        } else if (`+(d===2)+`) {
          `+m+" values = "+m+`(
            getValue(batch, inIdx),
            getValue(batch, inIdx + 1),
            initializationValue,
            initializationValue
          );

          `+f+`
        } else if (`+(d===3)+`) {
          `+m+" values = "+m+`(
            getValue(batch, inIdx),
            getValue(batch, inIdx + 1),
            getValue(batch, inIdx + 2),
            initializationValue
          );

          `+f+`
        }
        setOutput(`+u+`);
      }
    `},Ed=function(r,n){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=r;for(var e="",t=0;t<4;t++){var a="thisRC = rc;";t%2==1&&(a+="thisRC.z += 1;"),t>1&&(a+="thisRC.y += 1;"),e+=`
        `+a+`
        `+(t>0?"if(thisRC.y < rows && thisRC.z < cols){":"")+`
          int flatIndex = getFlatIndex(thisRC);

          ivec3 inputRC = inputCoordsFromReshapedOutCoords(flatIndex);
          vec2 inputRCInnerDims = vec2(float(inputRC.y),float(inputRC.z));

          result[`+t+`] =
            getChannel(getA(inputRC.x, inputRC.y, inputRC.z), inputRCInnerDims);
        `+(t>0?"}":"")+`
      `}this.userCode=`
      
    ivec3 inputCoordsFromReshapedOutCoords(int index) {
      `+v(["r","c","d"],n)+`
      return ivec3(r, c, d);
    }
  
      `+y(r)+`

      void main() {
        ivec3 rc = getOutputCoords();

        vec4 result = vec4(0.);

        ivec3 thisRC;
        int rows = `+r[1]+`;
        int cols = `+r[2]+`;

        `+e+`

        setOutput(result);
      }
    `},_d=function(r,n,e){this.variableNames=["dy"],this.outputShape=[],this.outputShape=n.shape;var t=n.shape,a=t[1],o=t[2],i=r.shape,s=i[1],u=i[2],c=[e&&s>1?a-1:a,e&&u>1?o-1:o],d=[e&&s>1?s-1:s,e&&u>1?u-1:u],f=c[0]/d[0],m=c[1]/d[1],g=1/f,x=1/m,E=2*Math.ceil(g)+2,w=2*Math.ceil(x)+2;this.userCode=`
      void main() {
        ivec4 coords = getOutputCoords();
        int b = coords[0];
        int d = coords[3];
        int r = coords[1];
        int c = coords[2];

        float accumulator = 0.0;

        const float heightScale = float(`+f+`);
        const float widthScale = float(`+m+`);

        const float invHeightScale = float(`+g+`);
        const float invWidthScale = float(`+x+`);

        const int winHeight = int(`+E+`);
        const int winWidth = int(`+w+`);

        // Compute bounds for where in dy we will look
        float startRLerp = floor(float(r) * invHeightScale);
        int startDyR = int(startRLerp - float(winHeight / 2));

        float startCLerp = floor(float(c) * invWidthScale);
        int startDyC = int(startCLerp - float(winWidth / 2));

        // Loop over dy
        for (int dyROffset = 0; dyROffset < winHeight; dyROffset++) {
          int dyR = dyROffset + startDyR;

          // Guard against the window exceeding the bounds of dy
          if (dyR < 0 || dyR >= `+s+`) {
            continue;
          }

          for (int dyCOffset = 0; dyCOffset < winWidth; dyCOffset++) {
            int dyC = dyCOffset + startDyC;

            // Guard against the window exceeding the bounds of dy
            if (dyC < 0 || dyC >= `+u+`) {
              continue;
            }

            float dxR = float(dyR) * heightScale;
            int topDxRIndex = int(floor(dxR));
            int bottomDxRIndex = int(min(ceil(dxR), `+(a-1)+`.0));
            float dxRLerp = dxR - float(topDxRIndex);
            float inverseDxRLerp = 1.0 - dxRLerp;

            float dxC = float(dyC) * widthScale;
            int leftDxCIndex = int(floor(dxC));
            int rightDxCIndex = int(min(ceil(dxC), `+(o-1)+`.0));
            float dxCLerp = dxC - float(leftDxCIndex);
            float inverseDxCLerp = 1.0 - dxCLerp;

            if (r == topDxRIndex && c == leftDxCIndex) {
              // topLeft
              accumulator +=
                getDy(b, dyR, dyC, d) * inverseDxRLerp * inverseDxCLerp;
            }

            if (r == topDxRIndex && c == rightDxCIndex) {
              // topRight
              accumulator += getDy(b, dyR, dyC, d) * inverseDxRLerp * dxCLerp;
            }

            if (r == bottomDxRIndex && c == leftDxCIndex) {
              // bottomLeft
              accumulator += getDy(b, dyR, dyC, d) * dxRLerp * inverseDxCLerp;
            }

            if (r == bottomDxRIndex && c == rightDxCIndex) {
              // bottomRight
              accumulator += getDy(b, dyR, dyC, d) * dxRLerp * dxCLerp;
            }
          }
        }
        // End loop over dy

        setOutput(accumulator);
      }
    `},Cd=function(r,n,e,t){this.variableNames=["A"],this.outputShape=[];var a=r[0],o=r[1],i=r[2],s=r[3];this.outputShape=[a,n,e,s];var u=[t&&n>1?o-1:o,t&&e>1?i-1:i],c=[t&&n>1?n-1:n,t&&e>1?e-1:e];this.userCode=`
      const vec2 effectiveInputOverOutputRatioRC = vec2(
          `+u[0]/c[0]+`,
          `+u[1]/c[1]+`);
      const vec2 inputShapeRC = vec2(`+o+".0, "+i+`.0);

      void main() {
        ivec4 coords = getOutputCoords();
        int b = coords[0];
        int d = coords[3];
        ivec2 yRC = coords.yz;

        // Fractional source index.
        vec2 sourceFracIndexRC = vec2(yRC) * effectiveInputOverOutputRatioRC;

        // Compute the four integer indices.
        ivec2 sourceFloorRC = ivec2(sourceFracIndexRC);
        ivec2 sourceCeilRC = ivec2(
          min(inputShapeRC - 1.0, ceil(sourceFracIndexRC)));

        float topLeft = getA(b, sourceFloorRC.x, sourceFloorRC.y, d);
        float bottomLeft = getA(b, sourceCeilRC.x, sourceFloorRC.y, d);
        float topRight = getA(b, sourceFloorRC.x, sourceCeilRC.y, d);
        float bottomRight = getA(b, sourceCeilRC.x, sourceCeilRC.y, d);

        vec2 fracRC = sourceFracIndexRC - vec2(sourceFloorRC);

        float top = topLeft + (topRight - topLeft) * fracRC.y;
        float bottom = bottomLeft + (bottomRight - bottomLeft) * fracRC.y;
        float newValue = top + (bottom - top) * fracRC.x;

        setOutput(newValue);
      }
    `},Rd=function(r,n,e,t){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=[];var a=r[0],o=r[1],i=r[2],s=r[3];this.outputShape=[a,n,e,s];var u=[t&&n>1?o-1:o,t&&e>1?i-1:i],c=[t&&n>1?n-1:n,t&&e>1?e-1:e];this.userCode=`
      const vec3 effectiveInputOverOutputRatioRC = vec3(
          `+u[0]/c[0]+`,
          `+u[1]/c[1]+`,
          `+u[1]/c[1]+`);
      const vec3 inputShapeRC = vec3(`+o+".0, "+i+`.0,
                                     `+i+`.0);

      float getAValue(int b, int r, int c, int d) {
        return getChannel(getA(b, r, c, d), vec2(c, d));
      }

      void main() {
        ivec4 coords = getOutputCoords();
        int b = coords[0];
        int d = coords[3];
        // Calculate values for next column in yRC.z.
        ivec3 yRC = coords.yzz + ivec3(0, 0, 1);

        // Fractional source index.
        vec3 sourceFracIndexRC = vec3(yRC) * effectiveInputOverOutputRatioRC;

        // Compute the four integer indices.
        ivec3 sourceFloorRC = ivec3(sourceFracIndexRC);
        ivec3 sourceCeilRC = ivec3(
          min(inputShapeRC - 1.0, ceil(sourceFracIndexRC)));

        // Should we calculate next column and row elements in 2x2 packed cell.
        bool hasNextCol = d < `+(s-1)+`;
        bool hasNextRow = coords.z < `+(e-1)+`;

        // In parallel, construct four corners for all four components in
        // packed 2x2 cell.
        vec4 topLeft = vec4(
          getAValue(b, sourceFloorRC.x, sourceFloorRC.y, d),
          hasNextCol ? getAValue(b, sourceFloorRC.x, sourceFloorRC.y, d + 1)
                     : 0.0,
          hasNextRow ? getAValue(b, sourceFloorRC.x, sourceFloorRC.z, d)
                     : 0.0,
          (hasNextRow && hasNextCol) ?
            getAValue(b, sourceFloorRC.x, sourceFloorRC.z, d + 1) : 0.0);

        vec4 bottomLeft = vec4(
          getAValue(b, sourceCeilRC.x, sourceFloorRC.y, d),
          hasNextCol ? getAValue(b, sourceCeilRC.x, sourceFloorRC.y, d + 1)
                     : 0.0,
          hasNextRow ? getAValue(b, sourceCeilRC.x, sourceFloorRC.z, d)
                     : 0.0,
          (hasNextRow && hasNextCol) ?
            getAValue(b, sourceCeilRC.x, sourceFloorRC.z, d + 1) : 0.0);

        vec4 topRight = vec4(
          getAValue(b, sourceFloorRC.x, sourceCeilRC.y, d),
          hasNextCol ? getAValue(b, sourceFloorRC.x, sourceCeilRC.y, d + 1)
                     : 0.0,
          hasNextRow ? getAValue(b, sourceFloorRC.x, sourceCeilRC.z, d)
                     : 0.0,
          (hasNextRow && hasNextCol) ?
            getAValue(b, sourceFloorRC.x, sourceCeilRC.z, d + 1) : 0.0);

        vec4 bottomRight = vec4(
          getAValue(b, sourceCeilRC.x, sourceCeilRC.y, d),
          hasNextCol ? getAValue(b, sourceCeilRC.x, sourceCeilRC.y, d + 1)
                     : 0.0,
          hasNextRow ? getAValue(b, sourceCeilRC.x, sourceCeilRC.z, d)
                     : 0.0,
          (hasNextRow && hasNextCol) ?
            getAValue(b, sourceCeilRC.x, sourceCeilRC.z, d + 1) : 0.0);

        vec3 fracRC = sourceFracIndexRC - vec3(sourceFloorRC);

        vec4 top = mix(topLeft, topRight, fracRC.yyzz);
        vec4 bottom = mix(bottomLeft, bottomRight, fracRC.yyzz);
        vec4 newValue = mix(top, bottom, fracRC.x);

        setOutput(newValue);
      }
    `},Ad=function(r,n,e){this.variableNames=["dy"],this.outputShape=[],this.outputShape=n.shape;var t=n.shape,a=t[1],o=t[2],i=r.shape,s=i[1],u=i[2],c=[e&&s>1?a-1:a,e&&u>1?o-1:o],d=[e&&s>1?s-1:s,e&&u>1?u-1:u],f=c[0]/d[0],m=c[1]/d[1],g=1/f,x=1/m,E=2*Math.ceil(g)+2,w=2*Math.ceil(x)+2;this.userCode=`
      void main() {
        ivec4 coords = getOutputCoords();
        int b = coords[0];
        int d = coords[3];
        int r = coords[1];
        int c = coords[2];

        float accumulator = 0.0;

        const float heightScale = float(`+f+`);
        const float widthScale = float(`+m+`);

        const float invHeightScale = float(`+g+`);
        const float invWidthScale = float(`+x+`);

        const int winHeight = int(`+E+`);
        const int winWidth = int(`+w+`);

        // Compute bounds for where in dy we will look
        float startRLerp = floor(float(r) * invHeightScale);
        int startDyR = int(floor(startRLerp - float(winHeight / 2)));

        float startCLerp = floor(float(c) * invWidthScale);
        int startDyC = int(floor(startCLerp - float(winWidth / 2)));

        // Loop over dy
        for (int dyROffset = 0; dyROffset < winHeight; dyROffset++) {
          int dyR = dyROffset + startDyR;

          // Guard against the window exceeding the bounds of dy
          if (dyR < 0 || dyR >= `+s+`) {
            continue;
          }

          for (int dyCOffset = 0; dyCOffset < winWidth; dyCOffset++) {
            int dyC = dyCOffset + startDyC;

            // Guard against the window exceeding the bounds of dy
            if (dyC < 0 || dyC >= `+u+`) {
              continue;
            }

            float sourceFracRow =
              float(`+c[0]+`) *
                (float(dyR) / float(`+d[0]+`));

            float sourceFracCol =
                float(`+c[1]+`) *
                  (float(dyC) / float(`+d[1]+`));

            int sourceNearestRow = int(min(
                float(int(`+a+`) - 1),
                `+e+` ? float(round(sourceFracRow)) :
                                  float(floor(sourceFracRow))));

            int sourceNearestCol = int(min(
                float(int(`+o+`) - 1),
                `+e+` ? float(round(sourceFracCol)) :
                                  float(floor(sourceFracCol))));

            if (r == sourceNearestRow && c == sourceNearestCol) {
              accumulator += getDy(b, dyR, dyC, d);
            }
          }
        }
        // End loop over dy

        setOutput(accumulator);
      }
    `},Td=function(r,n,e,t){this.variableNames=["A"],this.outputShape=[];var a=r[0],o=r[1],i=r[2],s=r[3];this.outputShape=[a,n,e,s];var u=[t&&n>1?o-1:o,t&&e>1?i-1:i],c=[t&&n>1?n-1:n,t&&e>1?e-1:e],d=t?"0.5":"0.0";this.userCode=`
      const vec2 effectiveInputOverOutputRatioRC = vec2(
          `+u[0]/c[0]+`,
          `+u[1]/c[1]+`);
      const vec2 inputShapeRC = vec2(`+o+".0, "+i+`.0);

      void main() {
        ivec4 coords = getOutputCoords();
        int b = coords[0];
        int d = coords[3];
        ivec2 yRC = coords.yz;

        // Fractional source index.
        vec2 sourceFracIndexRC = vec2(yRC) * effectiveInputOverOutputRatioRC;

        // Compute the coordinators of nearest neighbor point.
        ivec2 sourceNearestRC = ivec2(
          min(inputShapeRC - 1.0, floor(sourceFracIndexRC + `+d+`)));

        float newValue = getA(b, sourceNearestRC.x, sourceNearestRC.y, d);

        setOutput(newValue);
      }
    `},Dd=function(r,n){this.variableNames=["x"];var e=r.length;if(e>4)throw new Error("WebGL backend: Reverse of rank-"+e+" tensor is not yet supported");if(this.outputShape=r,e!==1){var t=r.map(function(o,i){return function(s){return n.indexOf(s)!==-1&&r[s]!==1?r[s]+" - coords["+s+"] - 1":"coords["+s+"]"}(i)}).join(","),a=le(e);this.userCode=`
      void main() {
        `+a+` coords = getOutputCoords();
        setOutput(getX(`+t+`));
      }
    `}else this.userCode=`
        void main() {
          int coord = getOutputCoords();
          setOutput(getX(`+r[0]+` - coord - 1));
        }
      `},Nd=function(r,n){this.variableNames=["x"],this.packedInputs=!0,this.packedOutput=!0;var e=r.length;if(e>4)throw new Error("WebGL backend: Reverse of rank-"+e+" tensor is not yet supported");this.outputShape=r;var t=l("rc",e),a=t[e-1]+" + 1 < "+this.outputShape[e-1],o=t[e-2]+" + 1 < "+this.outputShape[e-2],i=le(e);function s(u){var c=r.map(function(d,f){return function(m,g){return n.indexOf(m)!==-1&&r[m]!==1?r[m]+" - "+g[m]+" - 1":""+g[m]}(f,u)});return"getChannel(getX("+c.join(",")+"), vec2("+c.slice(-2).join(",")+"))"}this.userCode=e===1?`
        void main(){
          int rc = getOutputCoords();
          vec4 result = vec4(0.);
          result.r = getChannel(getX(`+r[0]+` - rc - 1),
            `+r[0]+` - rc - 1);
          if(`+a+`){
              result.g = getChannel(getX(`+r[0]+` - (rc  + 1) - 1),
                `+r[0]+` - (rc  + 1) - 1);
          }
          setOutput(result);
        }
      `:`
        void main() {
          `+i+` rc = getOutputCoords();
          vec4 result = vec4(0.);
          result.r = `+function(u){return s(u)}(t.slice())+`;
          if(`+a+`){
            result.g = `+function(u){return u[e-1]="("+u[e-1]+" + 1)",s(u)}(t.slice())+`;
          }
          if(`+o+`) {
            result.b = `+function(u){return u[e-2]="("+u[e-2]+" + 1)",s(u)}(t.slice())+`;
            if(`+a+`) {
              result.a = `+function(u){return u[e-1]="("+u[e-1]+" + 1)",u[e-2]="("+u[e-2]+" + 1)",s(u)}(t.slice())+`;
            }
          }
          setOutput(result);
        }
    `},Ec=function(r,n,e,t,a,o,i){i===void 0&&(i=!0),this.variableNames=["updates","indices","defaultValue"],this.outputShape=o;var s=le(a.length),u=le(o.length),c="";e===1?c="i":e===2&&(c="i, j");var d="getIndices("+c+")",f="";t===1?f="i":t===2&&(f="i, coords[1]");var m="getUpdates("+f+")",g=n>1?"strides[j]":"strides";this.userCode=`
        `+s+" strides = "+s+"("+a+`);

        void main() {
          `+u+` coords = getOutputCoords();
          float sum = 0.0;
          bool found = false;
          for (int i = 0; i < `+r+`; i++) {
            int flattenedIndex = 0;
            for (int j = 0; j < `+n+`; j++) {
              int index = round(`+d+`);
              flattenedIndex += index * `+g+`;
            }
            if (flattenedIndex == coords[0]) {
              sum += `+m+`;
              found = true;
            }
          }
          setOutput(mix(getDefaultValue(), sum, float(found)));
        }
      `},kd=function(r,n){this.variableNames=["x","segmentIds"];var e=r.windowSize,t=r.batchSize,a=r.inSize,o=r.numSegments,i=o*Math.ceil(a/e);this.outputShape=[t,i];var s=4*Math.floor(e/4),u=e%4,c=`
        sumValue += dot(values, segFilter);
    `,d="";a%e>0&&(d=`
        if (inIdx < 0 || inIdx >= `+a+`) {
          return initializationValue;
        }
      `);var f="";a%e>0&&(f=`
        if (inIdx < 0 || inIdx >= `+a+`) {
          return -1.0;
        }
      `),this.userCode=`
      const float initializationValue = 0.0;

      float getValue(int batch, int inIdx) {
        `+d+`
        return getX(batch, inIdx);
      }

      float getSegmentIdAtIndex(int inIdx) {
        `+f+`
        return getSegmentIds(inIdx);
      }

      void main() {
        ivec2 coords = getOutputCoords();
        int batch = coords[0];
        int outIdx = coords[1];
        int inOffset = int(floor(float(outIdx) / float(
          `+o+")) * float("+e+`));
        int currentSeg = int(mod(float(outIdx), float(`+o+`)));

        float sumValue = 0.0;

        for (int i = 0; i < `+s+`; i += 4) {
          int inIdx = inOffset + i;
          vec4 values = vec4(
            getValue(batch, inIdx),
            getValue(batch, inIdx + 1),
            getValue(batch, inIdx + 2),
            getValue(batch, inIdx + 3)
          );

          vec4 segFilter = vec4(
            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,
            int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,
            int(getSegmentIdAtIndex(inIdx + 2)) == currentSeg ? 1 : 0,
            int(getSegmentIdAtIndex(inIdx + 3)) == currentSeg ? 1 : 0
          );

          `+c+`
        }

        int inIdx = inOffset + `+s+`;
        if (`+(u===1)+`) {
          vec4 values = vec4(
            getValue(batch, inIdx),
            initializationValue,
            initializationValue,
            initializationValue
          );

          int inIdxSeg = int(getSegmentIdAtIndex(inIdx));

          vec4 segFilter = vec4(
            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,
            0,
            0,
            0
          );

          `+c+`
        } else if (`+(u===2)+`) {
          vec4 values = vec4(
            getValue(batch, inIdx),
            getValue(batch, inIdx + 1),
            initializationValue,
            initializationValue
          );

          vec4 segFilter = vec4(
            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,
            int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,
              0,
              0
          );

          `+c+`
        } else if (`+(u===3)+`) {
          vec4 values = vec4(
            getValue(batch, inIdx),
            getValue(batch, inIdx + 1),
            getValue(batch, inIdx + 2),
            initializationValue
          );

          vec4 segFilter = vec4(
            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,
            int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,
            int(getSegmentIdAtIndex(inIdx + 2)) == currentSeg ? 1 : 0,
            0
          );

          `+c+`
        }
        setOutput(sumValue);
      }
    `},Sd=function(r,n,e){var t,a;if(this.variableNames=["c","a","b"],this.outputShape=n,e>4)throw Error("Where for rank "+e+" is not yet supported");if(e===1)a="resRC",t="resRC";else{for(var o=["resRC.x","resRC.y","resRC.z","resRC.w"],i=[],s=[],u=0;u<n.length;u++)s.push(""+o[u]),u<r&&i.push(""+o[u]);t=i.join(),a=s.join()}var c=le(e);this.userCode=`
      void main() {
        `+c+` resRC = getOutputCoords();
        float cVal = getC(`+t+`);
        if (cVal >= 1.0) {
          setOutput(getA(`+a+`));
        } else {
          setOutput(getB(`+a+`));
        }
      }
    `},Od=function(){function r(n){this.variableNames=["source"],this.outputShape=n,this.rank=n.length;var e,t=le(this.rank),a="uniform int start["+this.rank+"];",o=function(i){if(i===1)return"sourceLoc";if(i<=6)return eu.slice(0,i).map(function(s){return"sourceLoc."+s}).join(",");throw Error("Slicing for rank "+i+" is not yet supported")}(this.rank);e=`
        `+t+` sourceLoc;
        `+t+` coords = getOutputCoords();
        `+n.map(function(i,s){return"sourceLoc."+eu[s]+" = start["+s+"] + coords."+eu[s]+";"}).join(`
`)+`
      `,this.userCode=`
      `+a+`
      void main() {
        `+e+`
        setOutput(getSource(`+o+`));
      }
    `}return r.prototype.getCustomSetupFunc=function(n){var e=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,a){e.startLoc==null&&(e.startLoc=t.getUniformLocationNoThrow(a,"start"),e.startLoc==null)||t.gl.uniform1iv(e.startLoc,n)}},r}(),eu=["x","y","z","w","u","v"],Id=function(){function r(n){this.variableNames=["source"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=n,this.rank=n.length;var e=le(this.rank),t=l("coords",this.rank),a=l("sourceLoc",this.rank),o=this.rank===1?"sourceLoc":"vec2("+a.slice(-2).join()+")",i="getChannel(getSource("+a.join()+"), "+o+")",s=`
      result.x = `+i+`;
      if (++`+t[this.rank-1]+" < "+n[this.rank-1]+`) {
        ++`+a[this.rank-1]+`;
        result.y = `+i+`;
        --`+a[this.rank-1]+`;
      }
    `,u=this.rank===1?"":`
      --`+t[this.rank-1]+`;
      if (++`+t[this.rank-2]+" < "+n[this.rank-2]+`) {
        ++`+a[this.rank-2]+`;
        result.z = `+i+`;
        if (++`+t[this.rank-1]+" < "+n[this.rank-1]+`) {
          ++`+a[this.rank-1]+`;
          result.w = `+i+`;
        }
      }
    `,c=this.rank<=4?`sourceLoc = coords +
            `+e+"("+n.map(function(d,f){return"start["+f+"]"}).join()+");":n.map(function(d,f){return a[f]+" = "+t[f]+" + start["+f+"];"}).join(`
`);this.userCode=`
      uniform int start[`+this.rank+`];
      void main() {
        `+e+` coords = getOutputCoords();
        `+e+` sourceLoc;
        `+c+`
        vec4 result = vec4(0.);
        `+s+`
        `+u+`
        setOutput(result);
      }
    `}return r.prototype.getCustomSetupFunc=function(n){var e=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,a){e.startLoc==null&&(e.startLoc=t.getUniformLocationNoThrow(a,"start"),e.startLoc==null)||t.gl.uniform1iv(e.startLoc,n)}},r}(),Md=function(r,n,e){this.variableNames=["x"],this.outputShape=e;var t=e.length,a=le(e.length),o=le(e.length),i="";if(t===1)i="coords * strides + begin";else{var s=0;i=e.map(function(u,c){return s++,e.length===1?"coords * strides["+c+"] + begin["+c+"]":"coords["+(s-1)+"] * strides["+c+"] + begin["+c+"]"}).join(",")}this.userCode=`
      `+a+" begin = "+a+"("+r+`);
      `+a+" strides = "+a+"("+n+`);

      void main() {
        `+o+` coords = getOutputCoords();
        setOutput(getX(`+i+`));
      }
    `},Fd=function(){function r(n){this.gpgpu=n,this.numUsedTextures=0,this.numFreeTextures=0,this.freeTextures={},this.logEnabled=!1,this.usedTextures={}}return r.prototype.acquireTexture=function(n,e,t){var a,o=_c(e,t),i=Cc(n,o,t);if(i in this.freeTextures||(this.freeTextures[i]=[]),i in this.usedTextures||(this.usedTextures[i]=[]),this.freeTextures[i].length>0){this.numFreeTextures--,this.numUsedTextures++,this.log();var s=this.freeTextures[i].shift();return this.usedTextures[i].push(s),s}return this.numUsedTextures++,this.log(),o===Tn.PACKED_2X2_FLOAT32?a=this.gpgpu.createPackedMatrixTexture(n[0],n[1]):o===Tn.PACKED_2X2_FLOAT16?a=this.gpgpu.createFloat16PackedMatrixTexture(n[0],n[1]):o===Tn.UNPACKED_FLOAT32?a=this.gpgpu.createFloat32MatrixTexture(n[0],n[1]):o===Tn.UNPACKED_FLOAT16?a=this.gpgpu.createFloat16MatrixTexture(n[0],n[1]):o===Tn.PACKED_4X1_UNSIGNED_BYTE&&(a=this.gpgpu.createUnsignedBytesMatrixTexture(n[0],n[1])),this.usedTextures[i].push(a),a},r.prototype.releaseTexture=function(n,e,t,a){if(this.freeTextures!=null){var o=Cc(e,_c(t,a),a);o in this.freeTextures||(this.freeTextures[o]=[]),this.freeTextures[o].push(n),this.numFreeTextures++,this.numUsedTextures--;var i=this.usedTextures[o],s=i.indexOf(n);if(s<0)throw new Error("Cannot release a texture that was never provided by this texture manager");i.splice(s,1),this.log()}},r.prototype.log=function(){if(this.logEnabled){var n=this.numFreeTextures+this.numUsedTextures;console.log("Free/Used",this.numFreeTextures+" / "+this.numUsedTextures,"("+n+")")}},r.prototype.getNumUsedTextures=function(){return this.numUsedTextures},r.prototype.getNumFreeTextures=function(){return this.numFreeTextures},r.prototype.dispose=function(){var n=this;if(this.freeTextures!=null){for(var e in this.freeTextures)this.freeTextures[e].forEach(function(t){n.gpgpu.deleteMatrixTexture(t)});for(var e in this.usedTextures)this.usedTextures[e].forEach(function(a){n.gpgpu.deleteMatrixTexture(a)});this.freeTextures=null,this.usedTextures=null,this.numUsedTextures=0,this.numFreeTextures=0}},r}();function _c(r,n){if(r===An.UPLOAD)return Tn.PACKED_2X2_FLOAT32;if(r===An.RENDER||r==null)return function(e){return ee().getBool("WEBGL_RENDER_FLOAT32_ENABLED")?e?Tn.PACKED_2X2_FLOAT32:Tn.UNPACKED_FLOAT32:e?Tn.PACKED_2X2_FLOAT16:Tn.UNPACKED_FLOAT16}(n);if(r===An.DOWNLOAD||r===An.PIXELS)return Tn.PACKED_4X1_UNSIGNED_BYTE;throw new Error("Unknown logical texture type "+r)}function Cc(r,n,e){return r[0]+"_"+r[1]+"_"+n+"_"+e}var Pd=function(r,n){this.variableNames=["A"];for(var e=new Array(r.length),t=0;t<e.length;t++)e[t]=r[t]*n[t];this.outputShape=e,this.rank=e.length;var a=le(this.rank),o=function(i){var s=i.length;if(s>5)throw Error("Tile for rank "+s+" is not yet supported");if(s===1)return"imod(resRC, "+i[0]+")";for(var u=["resRC.x","resRC.y","resRC.z","resRC.w","resRC.u"],c=[],d=0;d<i.length;d++)c.push("imod("+u[d]+", "+i[d]+")");return c.join()}(r);this.userCode=`
      void main() {
        `+a+` resRC = getOutputCoords();
        setOutput(getA(`+o+`));
      }
    `},Ld=function(r,n){this.variableNames=["A"];for(var e=new Array(r.length),t=0;t<e.length;t++)e[t]=r[n[t]];this.outputShape=e,this.rank=e.length;var a=le(this.rank),o=function(i){var s=i.length;if(s>6)throw Error("Transpose for rank "+s+" is not yet supported");for(var u=["resRC.x","resRC.y","resRC.z","resRC.w","resRC.u","resRC.v"],c=new Array(s),d=0;d<i.length;d++)c[i[d]]=u[d];return c.join()}(n);this.userCode=`
    void main() {
      `+a+` resRC = getOutputCoords();
      setOutput(getA(`+o+`));
    }
    `},Bd=function(r,n){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0;for(var e=new Array(r.length),t=0;t<e.length;t++)e[t]=r[n[t]];if(this.outputShape=e,this.rank=e.length,this.rank>6)throw Error("Packed transpose for rank "+this.rank+" is not yet supported.");var a=le(this.rank),o=p("rc",this.rank),i=new Array(this.rank);for(t=0;t<n.length;t++)i[n[t]]=o[t];var s="vec2("+i.slice(-2).join()+")",u="++"+o[this.rank-1]+" < "+e[this.rank-1],c="getChannel(getA("+i.join()+"), "+s+")";this.userCode=`
    void main() {
      `+a+` rc = getOutputCoords();
      vec4 result = vec4(0.);
      result[0] = `+c+`;
      if(`+u+`) {
        result[1] = `+c+`;
      }
      --`+o[this.rank-1]+`;
      if(++`+o[this.rank-2]+" < "+e[this.rank-2]+`) {
        result[2] = `+c+`;
        if(`+u+`) {
          result[3] = `+c+`;
        }
      }
      setOutput(result);
    }
    `},tu=1.7580993408473768,nu=1.0507009873554805,it=function(r,n){this.variableNames=["A"],this.outputShape=r,this.userCode=`
      float unaryOperation(float x) {
        `+n+`
      }

      void main() {
        float x = getAAtOutCoords();
        float y = unaryOperation(x);

        setOutput(y);
      }
    `},yr="if (isnan(x)) return x;",jd="return x;",Rc="return abs(x);",Ac=yr+`
  return (x < 0.0) ? 0.0 : x;
`,Tc=yr+`
  return (x < 0.0) ? 0.0 : min(6.0, x);
`,Dc="return (x >= 0.0) ? x : (exp(x) - 1.0);",Ud=`
  // Stable and Attracting Fixed Point (0, 1) for Normalized Weights.
  // see: https://arxiv.org/abs/1706.02515
  float scaleAlpha = `+tu+`;
  float scale = `+nu+`;
  return (x >= 0.0) ? scale * x : scaleAlpha * (exp(x) - 1.0);
`,Nc="return -x;",kc="return ceil(x);",Sc="return floor(x);",Oc="return exp(x);",Ic="return exp(x) - 1.0;",Wd=yr+`
  return sin(x);
`,zd=yr+`
  return cos(x);
`,Vd=yr+`
  if (abs(x) > 1.) {
    return NAN;
  }
  return asin(x);
`,Gd=yr+`
  if (abs(x) > 1.) {
    return NAN;
  }
  return acos(x);
`,Hd=yr+`
  return atan(x);
`,Xd=yr+"return log(x + sqrt(x * x + 1.0));",Kd=yr+`
  if (x < 1.0) return NAN;
  return log(x + sqrt(x * x - 1.0));`,qd=yr+`
  if ((x < -1.0) || (x > 1.0)) return NAN;
  return (log(1.0 + x) - log(1.0 - x)) / 2.0;`,Ji="return x;",Yd="return x;",Mc=`
  vec4 result = x * vec4(greaterThanEqual(x, vec4(0.0)));
  bvec4 isNaN = isnan(x);

  result.r = isNaN.r ? x.r : result.r;
  result.g = isNaN.g ? x.g : result.g;
  result.b = isNaN.b ? x.b : result.b;
  result.a = isNaN.a ? x.a : result.a;

  return result;
`,Fc=`
  vec4 result = min(x, vec4(6.)) * vec4(greaterThanEqual(x, vec4(0.0)));
  bvec4 isNaN = isnan(x);

  result.r = isNaN.r ? x.r : result.r;
  result.g = isNaN.g ? x.g : result.g;
  result.b = isNaN.b ? x.b : result.b;
  result.a = isNaN.a ? x.a : result.a;

  return result;
`,Pc=`
  vec4 result;

  result.r = (x.r >= 0.0) ? x.r : (exp(x.r) - 1.0);
  result.g = (x.g >= 0.0) ? x.g : (exp(x.g) - 1.0);
  result.b = (x.b >= 0.0) ? x.b : (exp(x.b) - 1.0);
  result.a = (x.a >= 0.0) ? x.a : (exp(x.a) - 1.0);

  return result;
`,ci=function(r,n){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=r,this.userCode=`
      vec4 unaryOperation(vec4 x) {
        `+n+`
      }

      void main() {
        vec4 x = getAAtOutCoords();
        vec4 y = unaryOperation(x);

        setOutput(y);
      }
    `},$d=function(r){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!1,this.outputShape=r;var n=r.length,e=l("rc",n),t=le(n),a=function(s,u){if(s===1)return"rc";for(var c="",d=0;d<s;d++)c+=u[d],d<s-1&&(c+=",");return c}(n,e),o=e.slice(-2),i=n<=1?"rc":"vec2("+o.join(",")+")";this.userCode=`
      void main() {
        `+t+` rc = getOutputCoords();
        vec4 packedInput = getA(`+a+`);

        setOutput(getChannel(packedInput, `+i+`));
      }
    `},Qi={};function Zi(r,n){if(n===void 0&&(n=!1),r==="linear")return n?Yd:jd;if(r==="relu")return n?Mc:Ac;if(r==="elu")return n?Pc:Dc;if(r==="relu6")return n?Fc:Tc;if(r==="prelu")return n?zn:nn;throw new Error("Activation "+r+" has not been implemented for the WebGL backend.")}var Jd=600,Lc=function(r){function n(e){var t,a=r.call(this)||this;if(a.pendingRead=new WeakMap,a.pendingDisposal=new WeakSet,a.dataRefCount=new WeakMap,a.numBytesInGPU=0,a.uploadWaitMs=0,a.downloadWaitMs=0,a.warnedAboutMemory=!1,a.pendingDeletes=0,a.disposed=!1,!ee().getBool("HAS_WEBGL"))throw new Error("WebGL is not supported on this device");if(e==null){var o=or(ee().getNumber("WEBGL_VERSION"));a.binaryCache=((t=ee().getNumber("WEBGL_VERSION"))in Qi||(Qi[t]={}),Qi[t]),a.gpgpu=new bc(o),a.canvas=o.canvas,a.gpgpuCreatedLocally=!0}else a.gpgpu=e,a.binaryCache={},a.gpgpuCreatedLocally=!1,a.canvas=e.gl.canvas;return a.textureManager=new Fd(a.gpgpu),a.numMBBeforeWarning=ee().global.screen==null?1024:ee().global.screen.height*ee().global.screen.width*window.devicePixelRatio*Jd/1024/1024,a.texData=new po(a,X),a}return Ke(n,r),n.prototype.numDataIds=function(){return this.texData.numDataIds()+(this.cpuBackend?this.cpuBackend.numDataIds():0)-this.pendingDeletes},n.prototype.write=function(e,t,a){if(ee().getBool("DEBUG")&&this.checkNumericalProblems(e),a==="complex64"&&e!=null)throw new Error("Cannot write to a complex64 dtype. Please use tf.complex(real, imag).");var o={};return this.texData.set(o,{shape:t,dtype:a,values:e,usage:An.UPLOAD}),o},n.prototype.move=function(e,t,a,o){if(ee().getBool("DEBUG")&&this.checkNumericalProblems(t),o==="complex64")throw new Error("Cannot write to a complex64 dtype. Please use tf.complex(real, imag).");this.texData.set(e,{shape:a,dtype:o,values:t,usage:An.UPLOAD})},n.prototype.readSync=function(e){var t=this.texData.get(e),a=t.values,o=t.dtype,i=t.complexTensors,s=t.slice,u=t.shape,c=t.isPacked;if(s!=null){var d=void 0;d=c?new ci(u,Ji):new it(u,Ji);var f=this.runWebGLProgram(d,[{dataId:e,shape:u,dtype:o}],o),m=this.readSync(f.dataId);return this.disposeData(f.dataId),m}if(a!=null)return this.convertAndCacheOnCPU(e);if(o==="string")return a;var g,x,E=this.activeTimers!=null;return(E&&(g=$()),o==="complex64")?x=yo(i.real.dataSync(),i.imag.dataSync()):x=this.getValuesFromTexture(e),E&&(this.downloadWaitMs+=$()-g),this.convertAndCacheOnCPU(e,x)},n.prototype.read=function(e){return ve(this,void 0,void 0,function(){var t,a,o,i,s,u,c,d,f,m,g,x,E,w,C,N,S,I,M,j,G,z;return ye(this,function(W){switch(W.label){case 0:if(this.pendingRead.has(e))return t=this.pendingRead.get(e),[2,new Promise(function(V){return t.push(V)})];if(a=this.texData.get(e),o=a.values,i=a.shape,s=a.slice,u=a.dtype,c=a.complexTensors,d=a.isPacked,s!=null)return f=void 0,f=d?new ci(i,Ji):new it(i,Ji),m=this.runWebGLProgram(f,[{dataId:e,shape:i,dtype:u}],u),g=this.read(m.dataId),this.disposeData(m.dataId),[2,g];if(o!=null)return[2,this.convertAndCacheOnCPU(e)];if(!ee().getBool("WEBGL_DOWNLOAD_FLOAT_ENABLED")&&ee().getNumber("WEBGL_VERSION")===2)throw new Error("tensor.data() with WEBGL_DOWNLOAD_FLOAT_ENABLED=false and WEBGL_VERSION=2 not yet supported.");return x=null,u!=="complex64"&&ee().get("WEBGL_BUFFER_SUPPORTED")&&(E=this.decode(e),w=this.texData.get(E.dataId),x=(z=this.gpgpu).createBufferFromTexture.apply(z,[w.texture].concat(Zt(i)))),this.pendingRead.set(e,[]),u==="complex64"?[3,2]:[4,this.gpgpu.createAndWaitForFence()];case 1:W.sent(),W.label=2;case 2:return u!=="complex64"?[3,4]:[4,Promise.all([c.real.data(),c.imag.data()])];case 3:return N=W.sent(),S=N[0],I=N[1],C=yo(S,I),[3,5];case 4:x==null?C=this.getValuesFromTexture(e):(M=ae(i),C=this.gpgpu.downloadFloat32MatrixFromBuffer(x,M)),W.label=5;case 5:return E!=null&&this.disposeData(E.dataId),j=this.convertAndCacheOnCPU(e,C),G=this.pendingRead.get(e),this.pendingRead.delete(e),G.forEach(function(V){return V(j)}),this.pendingDisposal.has(e)&&(this.pendingDisposal.delete(e),this.disposeData(e),this.pendingDeletes--),[2,j]}})})},n.prototype.checkNumericalProblems=function(e){if(e!=null)for(var t=0;t<e.length;t++){var a=e[t];if(!ds(a))throw ee().getBool("WEBGL_RENDER_FLOAT32_CAPABLE")?Error("The value "+a+" cannot be represented with your current settings. Consider enabling float32 rendering: 'tf.env().set('WEBGL_RENDER_FLOAT32_ENABLED', true);'"):Error("The value "+a+" cannot be represented on this device.")}},n.prototype.getValuesFromTexture=function(e){var t,a=this.texData.get(e),o=a.shape,i=a.dtype,s=a.isPacked,u=ae(o);if(ee().getBool("WEBGL_DOWNLOAD_FLOAT_ENABLED")){var c=this.decode(e),d=this.texData.get(c.dataId),f=(t=this.gpgpu).downloadMatrixFromPackedTexture.apply(t,[d.texture].concat(Zt(o))).subarray(0,u);return this.disposeData(c.dataId),f}var m=ee().getBool("WEBGL_PACK")&&s===!0,g=m?na(o):o,x=m?new $s(g):new un(g),E=this.runWebGLProgram(x,[{shape:g,dtype:i,dataId:e}],"float32"),w=this.texData.get(E.dataId),C=this.gpgpu.downloadByteEncodedFloatMatrixFromOutputTexture(w.texture,w.texShape[0],w.texShape[1]).subarray(0,u);return this.disposeData(E.dataId),C},n.prototype.time=function(e){return ve(this,void 0,void 0,function(){var t,a,o,i,s,u,c;return ye(this,function(d){switch(d.label){case 0:return t=this.activeTimers,a=[],o=!1,this.programTimersStack==null?(this.programTimersStack=a,o=!0):this.activeTimers.push(a),this.activeTimers=a,e(),i=Ae(this.activeTimers.map(function(f){return f.query})).filter(function(f){return f!=null}),s=Ae(this.activeTimers.map(function(f){return f.name})).filter(function(f){return f!=null}),this.activeTimers=t,o&&(this.programTimersStack=null),u={uploadWaitMs:this.uploadWaitMs,downloadWaitMs:this.downloadWaitMs,kernelMs:null,wallMs:null},ee().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0?[4,Promise.all(i)]:[3,2];case 1:return c=d.sent(),u.kernelMs=ie(c),u.getExtraProfileInfo=function(){return c.map(function(f,m){return{name:s[m],ms:f}}).map(function(f){return f.name+": "+f.ms}).join(", ")},[3,3];case 2:u.kernelMs={error:"WebGL query timers are not supported in this environment."},d.label=3;case 3:return this.uploadWaitMs=0,this.downloadWaitMs=0,[2,u]}})})},n.prototype.memory=function(){return{unreliable:!1,numBytesInGPU:this.numBytesInGPU}},n.prototype.startTimer=function(){return ee().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0?this.gpgpu.beginQuery():{startMs:$(),endMs:null}},n.prototype.endTimer=function(e){return ee().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0?(this.gpgpu.endQuery(),e):(e.endMs=$(),e)},n.prototype.getQueryTime=function(e){return ve(this,void 0,void 0,function(){var t;return ye(this,function(a){return ee().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0?[2,this.gpgpu.waitForQueryAndGetTime(e)]:[2,(t=e).endMs-t.startMs]})})},n.prototype.disposeData=function(e){if(!this.pendingDisposal.has(e)){if(this.pendingRead.has(e))return this.pendingDisposal.add(e),void this.pendingDeletes++;if(this.texData.has(e)){this.releaseGPUData(e);var t=this.texData.get(e).complexTensors;t!=null&&(t.real.dispose(),t.imag.dispose()),this.texData.delete(e)}}},n.prototype.releaseGPUData=function(e){var t=this.texData.get(e),a=t.texture,o=t.dtype,i=t.texShape,s=t.usage,u=t.isPacked,c=t.slice,d=c&&c.origDataId||e,f=this.dataRefCount.get(d);f>1?this.dataRefCount.set(d,f-1):(this.dataRefCount.delete(d),a!=null&&(this.numBytesInGPU-=this.computeBytes(i,o),this.textureManager.releaseTexture(a,i,s,u)));var m=this.texData.get(e);m.texture=null,m.texShape=null,m.isPacked=!1,m.slice=null},n.prototype.getTexture=function(e){return this.uploadToGPU(e),this.texData.get(e).texture},n.prototype.getDataInfo=function(e){return this.texData.get(e)},n.prototype.getCPUBackend=function(){return ee().getBool("WEBGL_CPU_FORWARD")?(this.cpuBackend==null&&(this.cpuBackend=X.findBackend("cpu")),this.cpuBackend):null},n.prototype.shouldExecuteOnCPU=function(e,t){var a=this;return t===void 0&&(t=128),this.getCPUBackend()!=null&&e.every(function(o){return a.texData.get(o.dataId).texture==null&&o.size<t})},n.prototype.getGPGPUContext=function(){return this.gpgpu},n.prototype.complex=function(e,t){var a=this.makeOutput(e.shape,"complex64");return this.texData.get(a.dataId).complexTensors={real:X.keep(e.clone()),imag:X.keep(t.clone())},a},n.prototype.real=function(e){return this.texData.get(e.dataId).complexTensors.real.clone()},n.prototype.imag=function(e){return this.texData.get(e.dataId).complexTensors.imag.clone()},n.prototype.slice=function(e,t,a){if(this.shouldExecuteOnCPU([e]))return this.cpuBackend.slice(e,t,a);if(ae(a)===0)return _n([],a,e.dtype);var o=this.texData.get(e.dataId).isPacked,i=Ui(e.shape,t,a);if(o||!i){var s=ee().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new Id(a):new Od(a),u=s.getCustomSetupFunc(t);return this.compileAndRun(s,[e],null,u)}return this.uploadToGPU(e.dataId),this.shallowSlice(e,t,a)},n.prototype.shallowSlice=function(e,t,a){var o=this.texData.get(e.dataId),i=this.makeOutput(a,e.dtype),s=this.texData.get(i.dataId);Object.assign(s,o),s.shape=a,s.dtype=e.dtype;var u=Wi(t,e.strides);o.slice&&(u+=o.slice.flatOffset),s.slice={flatOffset:u,origDataId:o.slice&&o.slice.origDataId||e.dataId};var c=this.dataRefCount.get(s.slice.origDataId)||1;return this.dataRefCount.set(s.slice.origDataId,c+1),i},n.prototype.stridedSlice=function(e,t,a,o){if(this.shouldExecuteOnCPU([e]))return this.cpuBackend.stridedSlice(e,t,a,o);var i=ho(t,a,o);if(i.some(function(u){return u===0}))return _n([],i);var s=new Md(t,o,i);return this.compileAndRun(s,[e])},n.prototype.reverse=function(e,t){var a=ee().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new Nd(e.shape,t):new Dd(e.shape,t);return this.compileAndRun(a,[e])},n.prototype.concat=function(e,t){if(e[0].dtype==="complex64"){var a=e.map(function(g){return Hn(g)}),o=e.map(function(g){return cr(g)});return zt(this.concat(a,t),this.concat(o,t))}if(this.shouldExecuteOnCPU(e))return this.cpuBackend.concat(e,t);if(e.length===1)return e[0];if(e.length>ee().getNumber("WEBGL_MAX_TEXTURES_IN_SHADER")){var i=Math.floor(e.length/2),s=this.concat(e.slice(0,i),t),u=this.concat(e.slice(i),t);return this.concat([s,u],t)}if(ee().getBool("WEBGL_PACK_ARRAY_OPERATIONS")&&e[0].rank>1){var c=new hr(e.map(function(g){return g.shape}),t);return this.compileAndRun(c,e)}var d=jr(e.map(function(g){return g.shape}),t),f=e.map(function(g){return g.as2D(-1,ae(g.shape.slice(t)))}),m=new Nr(f.map(function(g){return g.shape}));return this.compileAndRun(m,f).reshape(d)},n.prototype.neg=function(e){if(this.shouldExecuteOnCPU([e]))return this.cpuBackend.neg(e);if(ee().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(e,Nc,e.dtype);var t=new it(e.shape,Nc);return this.compileAndRun(t,[e])},n.prototype.batchMatMul=function(e,t,a,o){var i=a?e.shape[2]:e.shape[1],s=o?t.shape[1]:t.shape[2],u=a?e.shape[1]:e.shape[2],c=e.shape[0];if((i===1||s===1)&&u>1e3){a&&(e=e.transpose([0,2,1])),o&&(t=t.transpose([0,2,1]));var d=s===1?e:e.as3D(c,u,1),f=s===1?2:1,m=s===1?t.as3D(c,1,u):t;return this.multiply(d,m).sum(f,!0)}var g=yn(e.dtype,t.dtype),x=new Js(e.shape,[c,i,s],a,o);return this.compileAndRun(x,[e,t],g)},n.prototype.fusedBatchMatMul=function(e){var t=e.a,a=e.b,o=e.transposeA,i=e.transposeB,s=e.bias,u=e.activation,c=e.preluActivationWeights,d=o?t.shape[2]:t.shape[1],f=i?a.shape[1]:a.shape[2],m=t.shape[0],g=yn(t.dtype,a.dtype),x=s!=null,E=c!=null,w=u?Zi(u,!0):null,C=new Js(t.shape,[m,d,f],o,i,x,w,E),N=[t,a];return s&&N.push(s),c&&N.push(c),this.compileAndRun(C,N,g)},n.prototype.multiply=function(e,t){if(e.dtype==="complex64"){var a=this.texData.get(e.dataId),o=this.texData.get(t.dataId),i=new At(Bt,e.shape,t.shape),s=new At(Yt,e.shape,t.shape),u=[this.makeComplexComponentTensorInfo(e,a.complexTensors.real),this.makeComplexComponentTensorInfo(e,a.complexTensors.imag),this.makeComplexComponentTensorInfo(t,o.complexTensors.real),this.makeComplexComponentTensorInfo(t,o.complexTensors.imag)],c=this.compileAndRun(i,u),d=this.compileAndRun(s,u),f=this.complex(c,d);return c.dispose(),d.dispose(),f}if(this.shouldExecuteOnCPU([e,t]))return this.cpuBackend.multiply(e,t);if(ee().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(e,t,on,e.dtype);var m=new dt(on,e.shape,t.shape);return this.compileAndRun(m,[e,t],e.dtype)},n.prototype.batchNormalization=function(e,t,a,o,i,s){var u=[e,t,a],c=null;s!=null&&(c=s.shape,u.push(s));var d=null;if(i!=null&&(d=i.shape,u.push(i)),ee().getBool("WEBGL_PACK_NORMALIZATION")){var f=new Ze(e.shape,t.shape,a.shape,c,d,o);return this.compileAndRun(f,u)}var m=new Ne(e.shape,t.shape,a.shape,c,d,o);return this.compileAndRun(m,u)},n.prototype.localResponseNormalization4D=function(e,t,a,o,i){var s=ee().getBool("WEBGL_PACK_NORMALIZATION")?new pd(e.shape,t,a,o,i):new dd(e.shape,t,a,o,i);return this.compileAndRun(s,[e])},n.prototype.LRNGrad=function(e,t,a,o,i,s,u){var c=new hd(t.shape,o,i,s,u);return this.compileAndRun(c,[t,a,e])},n.prototype.tile=function(e,t){if(e.dtype==="string"){var a=this.readSync(e.dataId).map(function(i){return ut(i)});return qi(Je(e.shape,e.dtype,a),t)}var o=new Pd(e.shape,t);return this.compileAndRun(o,[e])},n.prototype.pad=function(e,t,a){var o=ee().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new bd(e.shape,t,a):new xd(e.shape,t,a);return this.compileAndRun(o,[e])},n.prototype.transpose=function(e,t){if(this.shouldExecuteOnCPU([e]))return this.cpuBackend.transpose(e,t);var a=ee().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new Bd(e.shape,t):new Ld(e.shape,t);return this.compileAndRun(a,[e])},n.prototype.gather=function(e,t,a){if(this.shouldExecuteOnCPU([e,t]))return this.cpuBackend.gather(e,t,a);var o=new sd(e.shape,t.size,a);return this.compileAndRun(o,[e,t])},n.prototype.batchToSpaceND=function(e,t,a){D(e.rank<=4,function(){return"batchToSpaceND for rank > 4 with a WebGL backend not implemented yet"});var o=t.reduce(function(f,m){return f*m}),i=Na(e.shape,t,o),s=xt(i.length,t.length),u=lo(e.shape,t,o),c=Fs(a,t.length),d=Ps(u,a,t.length);return e.reshape(i).transpose(s).reshape(u).slice(c,d)},n.prototype.spaceToBatchND=function(e,t,a){D(e.rank<=4,function(){return"spaceToBatchND for rank > 4 with a WebGL backend not implemented yet"});var o=t.reduce(function(m,g){return m*g}),i=[[0,0]];i.push.apply(i,a);for(var s=1+t.length;s<e.shape.length;++s)i.push([0,0]);var u=e.pad(i),c=Na(u.shape,t,o,!1),d=xt(c.length,t.length,!1),f=lo(u.shape,t,o,!1);return u.reshape(c).transpose(d).reshape(f)},n.prototype.reduce=function(e,t,a){var o=e.shape[0],i=e.shape[1],s=Zo(i),u=new wd({windowSize:s,inSize:i,batchSize:o},t),c=this.compileAndRun(u,[e],a);return c.shape[1]===1?c:this.reduce(c,t,a)},n.prototype.argReduce=function(e,t,a){a===void 0&&(a=null);var o=e.shape[0],i=e.shape[1];a!=null&&(o=a.shape[0],i=a.shape[1]);var s=Zo(i),u=new nc({windowSize:s,inSize:i,batchSize:o},t,a==null),c=[e];a!=null&&c.push(a);var d=this.compileAndRun(u,c,"int32");return d.shape[1]===1?d:this.argReduce(e,t,d)},n.prototype.argReducePacked=function(e,t,a){a===void 0&&(a=null);var o=a!=null?a.shape:e.shape,i=Zo(o[o.length-1]),s=new Ue(o,i,t,a==null),u=a==null?[e]:[e,a],c=this.compileAndRun(s,u,"int32");return c.rank===e.rank?this.argReducePacked(e,t,c):c},n.prototype.sum=function(e,t){Wn("sum",t,e.rank);var a=Nn(e.shape,t),o=a[0],i=ae(a[1]),s=e.as2D(-1,i),u=vn(e.dtype);return this.reduce(s,"sum",u).reshape(o)},n.prototype.prod=function(e,t){if(this.shouldExecuteOnCPU([e]))return this.cpuBackend.prod(e,t);var a=Nn(e.shape,t),o=a[0],i=ae(a[1]),s=e.as2D(-1,i),u=vn(e.dtype);return this.reduce(s,"prod",u).reshape(o)},n.prototype.unsortedSegmentSum=function(e,t,a){var o=0,i=Gn([o],e.rank),s=e;i!=null&&(s=e.transpose(i),o=Jn(1,e.rank)[0]);var u=function(g,x,E){for(var w=[],C=g.length,N=0;N<C;N++)N!==x?w.push(g[N]):w.push(E);return w}(s.shape,o,a),c=ae([s.shape[o]]),d=s.as2D(-1,c),f=vn(e.dtype),m=this.segOpCompute(d,"unsortedSegmentSum",t,f,a).reshape(u);return i!=null&&(m=m.transpose(oa(i))),m},n.prototype.segOpCompute=function(e,t,a,o,i){var s=e.shape[0],u=e.shape[1],c=function(m,g){var x,E=!1;for(m<=Li?(x=m,E=!0):x=gn(m,Math.floor(Math.sqrt(m)));!E;)x>g||x===m?E=!0:x=gn(m,x+1);return x}(u,i),d=new kd({windowSize:c,inSize:u,batchSize:s,numSegments:i},t),f=this.compileAndRun(d,[e,a],o);return f.shape[1]===i?f:(a=to(0,i).tile([u/c]),this.segOpCompute(f,t,a,o,i))},n.prototype.argMinMaxReduce=function(e,t,a){var o=[t];if(Wn("arg"+a.charAt(0).toUpperCase()+a.slice(1),o,e.rank),!ee().getBool("WEBGL_PACK_REDUCE")||e.rank<=2){var i=Nn(e.shape,o),s=i[0],u=ae(i[1]),c=e.as2D(-1,u);return this.argReduce(c,a).reshape(s)}return this.argReducePacked(e,a)},n.prototype.argMin=function(e,t){return this.argMinMaxReduce(e,t,"min")},n.prototype.argMax=function(e,t){return this.argMinMaxReduce(e,t,"max")},n.prototype.cumsum=function(e,t,a,o){if(t!==e.rank-1)throw new Error("WebGL cumsum shader expects an inner-most axis="+(e.rank-1)+" but got axis="+t);var i=new wt(e.shape,a,o);return this.compileAndRun(i,[e])},n.prototype.equal=function(e,t){if(ee().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(e,t,`
  return vec4(equal(a, b));
`,"bool");var a=new dt("return float(a == b);",e.shape,t.shape);return this.compileAndRun(a,[e,t],"bool")},n.prototype.notEqual=function(e,t){if(ee().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(e,t,`
  return vec4(notEqual(a, b));
`,"bool");var a=new dt("return float(a != b);",e.shape,t.shape);return this.compileAndRun(a,[e,t],"bool")},n.prototype.less=function(e,t){if(this.shouldExecuteOnCPU([e,t]))return this.cpuBackend.less(e,t);if(ee().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(e,t,`
  return vec4(lessThan(a, b));
`,"bool");var a=new dt("return float(a < b);",e.shape,t.shape);return this.compileAndRun(a,[e,t],"bool")},n.prototype.lessEqual=function(e,t){if(ee().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(e,t,`
  return vec4(lessThanEqual(a, b));
`,"bool");var a=new dt("return float(a <= b);",e.shape,t.shape);return this.compileAndRun(a,[e,t],"bool")},n.prototype.greater=function(e,t){if(this.shouldExecuteOnCPU([e,t]))return this.cpuBackend.greater(e,t);if(ee().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(e,t,`
  return vec4(greaterThan(a, b));
`,"bool");var a=new dt("return float(a > b);",e.shape,t.shape);return this.compileAndRun(a,[e,t],"bool")},n.prototype.greaterEqual=function(e,t){if(ee().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(e,t,`
  return vec4(greaterThanEqual(a, b));
`,"bool");var a=new dt("return float(a >= b);",e.shape,t.shape);return this.compileAndRun(a,[e,t],"bool")},n.prototype.logicalNot=function(e){var t=new it(e.shape,"return float(!(x >= 1.0));");return this.compileAndRun(t,[e])},n.prototype.logicalAnd=function(e,t){if(ee().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(e,t,`
  return vec4(
    vec4(greaterThanEqual(a, vec4(1.0))) *
    vec4(greaterThanEqual(b, vec4(1.0))));
`,"bool");var a=new dt("return float(a >= 1.0 && b >= 1.0);",e.shape,t.shape);return this.compileAndRun(a,[e,t],"bool")},n.prototype.logicalOr=function(e,t){if(ee().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(e,t,`
  return min(
    vec4(greaterThanEqual(a, vec4(1.0))) +
    vec4(greaterThanEqual(b, vec4(1.0))),
    vec4(1.0));
`,"bool");var a=new dt("return float(a >= 1.0 || b >= 1.0);",e.shape,t.shape);return this.compileAndRun(a,[e,t],"bool")},n.prototype.select=function(e,t,a){var o=new Sd(e.rank,t.shape,t.rank);return this.compileAndRun(o,[e,t,a],yn(t.dtype,a.dtype))},n.prototype.where=function(e){eo("tf.where() in webgl locks the UI thread. Call tf.whereAsync() instead");var t=e.dataSync();return Yi(e.shape,t)},n.prototype.topk=function(e,t,a){return qs(e.dataSync(),e.shape,e.dtype,t)},n.prototype.min=function(e,t){Wn("min",t,e.rank);var a=Nn(e.shape,t),o=a[0],i=ae(a[1]),s=e.as2D(-1,i);return this.reduce(s,"min",s.dtype).reshape(o)},n.prototype.minimum=function(e,t){if(this.shouldExecuteOnCPU([e,t]))return this.cpuBackend.minimum(e,t);var a=ee().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new Ie(`
  vec4 result = vec4(min(a, b));
  vec4 isNaN = min(vec4(isnan(a)) + vec4(isnan(b)), vec4(1.0));
  
  result.r = isNaN.r > 0. ? NAN : result.r;
  result.g = isNaN.g > 0. ? NAN : result.g;
  result.b = isNaN.b > 0. ? NAN : result.b;
  result.a = isNaN.a > 0. ? NAN : result.a;

  return result;
`,e.shape,t.shape):new dt(`
  if (isnan(a)) return a;
  if (isnan(b)) return b;

  return min(a, b);
`,e.shape,t.shape);return this.compileAndRun(a,[e,t])},n.prototype.mod=function(e,t){var a=ee().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new Ie(`
  vec4 result = mod(a, b);
  vec4 isNaN = vec4(equal(b, vec4(0.0)));
  
  result.r = isNaN.r > 0. ? NAN : result.r;
  result.g = isNaN.g > 0. ? NAN : result.g;
  result.b = isNaN.b > 0. ? NAN : result.b;
  result.a = isNaN.a > 0. ? NAN : result.a;

  return result;
`,e.shape,t.shape):new dt(`if (b == 0.0) return NAN;
  return mod(a, b);`,e.shape,t.shape);return this.compileAndRun(a,[e,t])},n.prototype.max=function(e,t){if(this.shouldExecuteOnCPU([e]))return this.cpuBackend.max(e,t);Wn("max",t,e.rank);var a=Nn(e.shape,t),o=a[0],i=ae(a[1]),s=e.as2D(-1,i);return this.reduce(s,"max",s.dtype).reshape(o)},n.prototype.maximum=function(e,t){if(this.shouldExecuteOnCPU([e,t]))return this.cpuBackend.maximum(e,t);var a=ee().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new Ie(`
  vec4 result = vec4(max(a, b));
  vec4 isNaN = min(vec4(isnan(a)) + vec4(isnan(b)), vec4(1.0));
  
  result.r = isNaN.r > 0. ? NAN : result.r;
  result.g = isNaN.g > 0. ? NAN : result.g;
  result.b = isNaN.b > 0. ? NAN : result.b;
  result.a = isNaN.a > 0. ? NAN : result.a;

  return result;
`,e.shape,t.shape):new dt(`
  if (isnan(a)) return a;
  if (isnan(b)) return b;

  return max(a, b);
`,e.shape,t.shape);return this.compileAndRun(a,[e,t])},n.prototype.all=function(e,t){Wn("all",t,e.rank);var a=Nn(e.shape,t),o=a[0],i=ae(a[1]),s=e.as2D(-1,i);return this.reduce(s,"all",s.dtype).reshape(o)},n.prototype.any=function(e,t){Wn("any",t,e.rank);var a=Nn(e.shape,t),o=a[0],i=ae(a[1]),s=e.as2D(-1,i);return this.reduce(s,"any",s.dtype).reshape(o)},n.prototype.realDivide=function(e,t){if(ee().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(e,t,`
  // vec4 one = vec4(equal(a, b));
  // return one + (vec4(1.0) - one) * a / b;
  vec4 result = a / b;
  if(a.x == b.x) {
    result.x = 1.;
  }
  if(a.y == b.y) {
    result.y = 1.;
  }
  if(a.z == b.z) {
    result.z = 1.;
  }
  if(a.w == b.w) {
    result.w = 1.;
  }

  return result;
`,"float32",!0);var a=new dt(`
if (a == b) {
  return 1.0;
};
return a / b;`,e.shape,t.shape);return this.compileAndRun(a,[e,t],"float32")},n.prototype.floorDiv=function(e,t){if(ee().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(e,t,`
  ivec4 ia = round(a);
  ivec4 ib = round(b);
  bvec4 cond = notEqual(ib, ivec4(0));
  ivec4 result = ivec4(0);
  vec4 s = sign(a) * sign(b);

  // Windows (D3D) wants guaranteed non-zero int division at compile-time.
  if (cond[0]) {
    result[0] = idiv(ia[0], ib[0], s[0]);
  }
  if (cond[1]) {
    result[1] = idiv(ia[1], ib[1], s[1]);
  }
  if (cond[2]) {
    result[2] = idiv(ia[2], ib[2], s[2]);
  }
  if (cond[3]) {
    result[3] = idiv(ia[3], ib[3], s[3]);
  }
  return vec4(result);
`,"int32");var a=new dt(`
  float s = sign(a) * sign(b);
  int ia = round(a);
  int ib = round(b);
  if (ib != 0) {
    // Windows (D3D) wants guaranteed non-zero int division at compile-time.
    return float(idiv(ia, ib, s));
  } else {
    return NAN;
  }
`,e.shape,t.shape);return this.compileAndRun(a,[e,t],"int32")},n.prototype.add=function(e,t){if(e.dtype==="complex64"&&t.dtype==="complex64")return this.complexSeparableBinaryOp(e,t,rt);if(this.shouldExecuteOnCPU([e,t]))return this.cpuBackend.add(e,t);var a=yn(e.dtype,t.dtype);if(ee().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(e,t,rt,a);var o=new dt(rt,e.shape,t.shape);return this.compileAndRun(o,[e,t],a)},n.prototype.packedUnaryOp=function(e,t,a){var o=new ci(e.shape,t);return this.compileAndRun(o,[e],a)},n.prototype.packedBinaryOp=function(e,t,a,o,i){i===void 0&&(i=!1);var s=new Ie(a,e.shape,t.shape,i);return this.compileAndRun(s,[e,t],o)},n.prototype.complexSeparableBinaryOp=function(e,t,a){var o=this,i=this.texData.get(e.dataId),s=this.texData.get(t.dataId),u=[[i.complexTensors.real,s.complexTensors.real],[i.complexTensors.imag,s.complexTensors.imag]].map(function(m){var g=m[0],x=m[1],E=o.makeComplexComponentTensorInfo(e,g),w=o.makeComplexComponentTensorInfo(t,x),C=new dt(a,e.shape,t.shape);return o.compileAndRun(C,[E,w],yn(g.dtype,x.dtype))}),c=u[0],d=u[1],f=this.complex(c,d);return c.dispose(),d.dispose(),f},n.prototype.makeComplexComponentTensorInfo=function(e,t){return{dataId:t.dataId,dtype:t.dtype,shape:e.shape}},n.prototype.addN=function(e){if(e.length===1)return e[0];if(e.length>ee().get("WEBGL_MAX_TEXTURES_IN_SHADER")){var t=Math.floor(e.length/2),a=this.addN(e.slice(0,t)),o=this.addN(e.slice(t));return this.addN([a,o])}var i=e.map(function(c){return c.dtype}).reduce(function(c,d){return yn(c,d)}),s=e.map(function(c){return c.shape}),u=ee().getBool("WEBGL_PACK")?new Ys(e[0].shape,s):new tc(e[0].shape,s);return this.compileAndRun(u,e,i)},n.prototype.subtract=function(e,t){if(e.dtype==="complex64"&&t.dtype==="complex64")return this.complexSeparableBinaryOp(e,t,Kt);if(this.shouldExecuteOnCPU([e,t]))return this.cpuBackend.subtract(e,t);var a=yn(e.dtype,t.dtype);if(ee().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(e,t,Kt,e.dtype);var o=new dt(Kt,e.shape,t.shape);return this.compileAndRun(o,[e,t],a)},n.prototype.pow=function(e,t){var a=ee().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new Ie(`
  // isModRound1 has 1 for components with round(mod(b, 2.0)) == 1, 0 otherwise.
  vec4 isModRound1 = vec4(equal(round(mod(b, 2.0)), ivec4(1)));
  vec4 multiplier = sign(a) * isModRound1 + (vec4(1.0) - isModRound1);
  vec4 result = multiplier * pow(abs(a), b);

  // Ensure that a^0 = 1, including 0^0 = 1 as this correspond to TF and JS
  bvec4 isExpZero = equal(b, vec4(0.0));
  result.r = isExpZero.r ? 1.0 : result.r;
  result.g = isExpZero.g ? 1.0 : result.g;
  result.b = isExpZero.b ? 1.0 : result.b;
  result.a = isExpZero.a ? 1.0 : result.a;

  vec4 isNaN = vec4(lessThan(a, vec4(0.0))) * vec4(lessThan(floor(b), b));
  
  result.r = isNaN.r > 0. ? NAN : result.r;
  result.g = isNaN.g > 0. ? NAN : result.g;
  result.b = isNaN.b > 0. ? NAN : result.b;
  result.a = isNaN.a > 0. ? NAN : result.a;

  return result;
`,e.shape,t.shape):new dt(`
if(a < 0.0 && floor(b) < b){
  return NAN;
}
if (b == 0.0) {
  return 1.0;
}
return (round(mod(b, 2.0)) != 1) ?
    pow(abs(a), b) : sign(a) * pow(abs(a), b);
`,e.shape,t.shape),o=yn(e.dtype,t.dtype);return this.compileAndRun(a,[e,t],o)},n.prototype.ceil=function(e){if(this.shouldExecuteOnCPU([e]))return this.cpuBackend.ceil(e);if(ee().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(e,kc,e.dtype);var t=new it(e.shape,kc);return this.compileAndRun(t,[e])},n.prototype.floor=function(e){if(this.shouldExecuteOnCPU([e]))return this.cpuBackend.floor(e);if(ee().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(e,Sc,e.dtype);var t=new it(e.shape,Sc);return this.compileAndRun(t,[e])},n.prototype.sign=function(e){var t=new it(e.shape,`
  if (isnan(x)) { return 0.0; }
  return sign(x);
`);return this.compileAndRun(t,[e])},n.prototype.isNaN=function(e){var t=new it(e.shape,"return float(isnan(x));");return this.compileAndRun(t,[e],"bool")},n.prototype.isInf=function(e){var t=new it(e.shape,"return float(isinf(x));");return this.compileAndRun(t,[e],"bool")},n.prototype.isFinite=function(e){var t=new it(e.shape,"return float(!isnan(x) && !isinf(x));");return this.compileAndRun(t,[e],"bool")},n.prototype.round=function(e){var t=new it(e.shape,`
  // OpenGL ES does not support round function.
  // The algorithm is based on banker's rounding.
  float base = floor(x);
  if ((x - base) < 0.5) {
    return floor(x);
  } else if ((x - base) > 0.5) {
    return ceil(x);
  } else {
    if (mod(base, 2.0) == 0.0) {
      return base;
    } else {
      return base + 1.0;
    }
  }
`);return this.compileAndRun(t,[e])},n.prototype.exp=function(e){if(this.shouldExecuteOnCPU([e]))return this.cpuBackend.exp(e);if(ee().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(e,Oc,e.dtype);var t=new it(e.shape,Oc);return this.compileAndRun(t,[e])},n.prototype.expm1=function(e){if(this.shouldExecuteOnCPU([e]))return this.cpuBackend.expm1(e);if(ee().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(e,Ic,e.dtype);var t=new it(e.shape,Ic);return this.compileAndRun(t,[e])},n.prototype.softmax=function(e,t){var a=je([t],e.shape),o=this.max(e,a),i=kn(o.shape,a),s=this.subtract(e,o.reshape(i)),u=this.exp(s),c=this.sum(u,a).reshape(i);return this.realDivide(u,c)},n.prototype.log=function(e){if(this.shouldExecuteOnCPU([e]))return this.cpuBackend.log(e);if(ee().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(e,`
  vec4 result = log(x);
  vec4 isNaN = vec4(lessThan(x, vec4(0.0)));
  result.r = isNaN.r == 1.0 ? NAN : result.r;
  result.g = isNaN.g == 1.0 ? NAN : result.g;
  result.b = isNaN.b == 1.0 ? NAN : result.b;
  result.a = isNaN.a == 1.0 ? NAN : result.a;

  return result;
`,e.dtype);var t=new it(e.shape,`if (x < 0.0) return NAN;
  return log(x);`);return this.compileAndRun(t,[e])},n.prototype.log1p=function(e){var t=new it(e.shape,"return log(1.0 + x);");return this.compileAndRun(t,[e])},n.prototype.sqrt=function(e){var t=new it(e.shape,"return sqrt(x);");return this.compileAndRun(t,[e])},n.prototype.rsqrt=function(e){if(this.shouldExecuteOnCPU([e]))return this.cpuBackend.rsqrt(e);var t=new it(e.shape,"return inversesqrt(x);");return this.compileAndRun(t,[e])},n.prototype.reciprocal=function(e){var t=new it(e.shape,"return 1.0 / x;");return this.compileAndRun(t,[e])},n.prototype.relu=function(e){var t;return t=ee().getBool("WEBGL_PACK")?new ci(e.shape,Mc):new it(e.shape,Ac),this.compileAndRun(t,[e])},n.prototype.relu6=function(e){var t;return t=ee().getBool("WEBGL_PACK")?new ci(e.shape,Fc):new it(e.shape,Tc),this.compileAndRun(t,[e])},n.prototype.prelu=function(e,t){var a=ee().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new Ie(zn,e.shape,t.shape):new dt(nn,e.shape,t.shape);return this.compileAndRun(a,[e,t])},n.prototype.elu=function(e){if(ee().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(e,Pc,e.dtype);var t=new it(e.shape,Dc);return this.compileAndRun(t,[e])},n.prototype.eluDer=function(e,t){var a=ee().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new Ie(`
  vec4 bGTEZero = vec4(greaterThanEqual(b, vec4(0.)));
  return (bGTEZero * a) + ((vec4(1.0) - bGTEZero) * (a * (b + vec4(1.0))));
`,e.shape,t.shape):new dt("return (b >= 1.0) ? a : a * (b + 1.0);",e.shape,t.shape);return this.compileAndRun(a,[e,t])},n.prototype.selu=function(e){var t=new it(e.shape,Ud);return this.compileAndRun(t,[e])},n.prototype.int=function(e){var t=new it(e.shape,"return float(int(x));");return this.compileAndRun(t,[e],"int32")},n.prototype.clip=function(e,t,a){var o,i=(o=ee().getBool("WEBGL_PACK_CLIP")?new Ot(e.shape):new Sn(e.shape)).getCustomSetupFunc(t,a);return this.compileAndRun(o,[e],null,i)},n.prototype.abs=function(e){if(this.shouldExecuteOnCPU([e]))return this.cpuBackend.abs(e);if(ee().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(e,Rc,e.dtype);var t=new it(e.shape,Rc);return this.compileAndRun(t,[e])},n.prototype.complexAbs=function(e){var t=this.texData.get(e.dataId),a=new sn(e.shape),o=[this.makeComplexComponentTensorInfo(e,t.complexTensors.real),this.makeComplexComponentTensorInfo(e,t.complexTensors.imag)];return this.compileAndRun(a,o)},n.prototype.sigmoid=function(e){var t=new it(e.shape,"return 1.0 / (1.0 + exp(-1.0 * x));");return this.compileAndRun(t,[e])},n.prototype.softplus=function(e){var t=new it(e.shape,`
  float epsilon = 1.1920928955078125e-7;
  float threshold = log(epsilon) + 2.0;

  bool too_large = x > -threshold;
  bool too_small = x < threshold;

  float result;
  float exp_x = exp(x);

  if (too_large){
    result = x;
  }
  else if (too_small){
    result = exp_x;
  }
  else{
    result = log(exp_x + 1.0);
  }
  return result;
`);return this.compileAndRun(t,[e])},n.prototype.sin=function(e){var t=new it(e.shape,Wd);return this.compileAndRun(t,[e])},n.prototype.cos=function(e){var t=new it(e.shape,zd);return this.compileAndRun(t,[e])},n.prototype.tan=function(e){var t=new it(e.shape,"return tan(x);");return this.compileAndRun(t,[e])},n.prototype.asin=function(e){var t=new it(e.shape,Vd);return this.compileAndRun(t,[e])},n.prototype.acos=function(e){var t=new it(e.shape,Gd);return this.compileAndRun(t,[e])},n.prototype.atan=function(e){var t=new it(e.shape,Hd);return this.compileAndRun(t,[e])},n.prototype.atan2=function(e,t){var a=ee().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new Ie(`
  vec4 result = atan(a, b);
  vec4 isNaN = min(vec4(isnan(a)) + vec4(isnan(b)), vec4(1.0));
  
  result.r = isNaN.r > 0. ? NAN : result.r;
  result.g = isNaN.g > 0. ? NAN : result.g;
  result.b = isNaN.b > 0. ? NAN : result.b;
  result.a = isNaN.a > 0. ? NAN : result.a;

  return result;
`,e.shape,t.shape):new dt(`
  if (isnan(a)) return a;
  if (isnan(b)) return b;

  return atan(a, b);
`,e.shape,t.shape);return this.compileAndRun(a,[e,t])},n.prototype.sinh=function(e){var t=new it(e.shape,`
  float e2x = exp(x);
  return (e2x - 1.0 / e2x) / 2.0;
`);return this.compileAndRun(t,[e])},n.prototype.cosh=function(e){var t=new it(e.shape,`
  float e2x = exp(-x);
  return (e2x + 1.0 / e2x) / 2.0;
`);return this.compileAndRun(t,[e])},n.prototype.tanh=function(e){var t=new it(e.shape,`
  float e2x = exp(-2.0 * abs(x));
  return sign(x) * (1.0 - e2x) / (1.0 + e2x);
`);return this.compileAndRun(t,[e])},n.prototype.asinh=function(e){var t=new it(e.shape,Xd);return this.compileAndRun(t,[e])},n.prototype.acosh=function(e){var t=new it(e.shape,Kd);return this.compileAndRun(t,[e])},n.prototype.atanh=function(e){var t=new it(e.shape,qd);return this.compileAndRun(t,[e])},n.prototype.erf=function(e){var t=new it(e.shape,`
  // Error function is calculated approximately with elementary function.
  // See "Handbook of Mathematical Functions with Formulas,
  // Graphs, and Mathematical Tables", Abramowitz and Stegun.
  float p = 0.3275911;
  float a1 = 0.254829592;
  float a2 = -0.284496736;
  float a3 = 1.421413741;
  float a4 = -1.453152027;
  float a5 = 1.061405429;

  float sign = sign(x);
  x = abs(x);
  float t = 1.0 / (1.0 + p * x);
  return sign * (1.0 - (((((a5*t + a4)*t) + a3)*t + a2)*t + a1)*t*exp(-x*x));
`);return this.compileAndRun(t,[e])},n.prototype.step=function(e,t){var a=new it(e.shape,function(o){return o===void 0&&(o=0),yr+`
    return x > 0.0 ? 1.0 : float(`+o+`);
  `}(t));return this.compileAndRun(a,[e])},n.prototype.conv2dByMatMul=function(e,t,a,o,i,s){var u=e.shape,c=this.texData.get(e.dataId),d=a.inChannels,f=u[0]*u[1]*u[2],m=a.outChannels,g=a.dataFormat==="channelsLast",x=(f===1||m===1)&&d>1e3,E=u[2]%2!=0&&!!c.isPacked;if(x||!ee().getBool("WEBGL_LAZILY_UNPACK")||!ee().getBool("WEBGL_PACK_BINARY_OPERATIONS")||!E){var w=g?u[0]*u[1]*u[2]:u[0]*u[2]*u[3],C=this.reshape(e,[1,w,a.inChannels]),N=this.reshape(t,[1,a.inChannels,a.outChannels]);return this.reshape(this.fusedBatchMatMul({a:C,b:N,transposeA:!1,transposeB:!1,bias:o,activation:i,preluActivationWeights:s}),a.outShape)}var S=g?u[0]*u[1]*(u[2]+1):u[0]*u[2]*(u[3]+1),I={dataId:e.dataId,shape:[1,S,a.inChannels],dtype:e.dtype},M=c.shape;c.shape=c.shape.slice(),c.shape[c.shape.length-2]++,D(ra(c.shape,I.shape),function(){return"packed reshape "+c.shape+" to "+I.shape+" isn't free"});var j=this.reshape(t,[1,a.inChannels,a.outChannels]),G=this.fusedBatchMatMul({a:I,b:j,transposeA:!1,transposeB:!1,bias:o,activation:i,preluActivationWeights:s}),z=this.texData.get(G.dataId);return D(z.isPacked,function(){return"batchMatMul result is expected to be packed"}),c.shape=M,z.shape=a.outShape,X.makeTensorFromDataId(G.dataId,a.outShape,G.dtype)},n.prototype.conv2dWithIm2Row=function(e,t,a,o,i,s){var u=a.filterWidth,c=a.filterHeight,d=a.inChannels,f=a.outWidth,m=a.outHeight,g=a.dataFormat==="channelsLast",x=u*c*d,E=m*f,w=[x,E],C=e.squeeze([0]),N=t.reshape([1,x,-1]),S=new ld(w,C.shape,a),I=this.compileAndRun(S,[C]).reshape([1,w[0],w[1]]),M=o!=null,j=s!=null,G=i?Zi(i,!0):null,z=new Js(I.shape,[1,E,a.outChannels],!0,!1,M,G,j),W=[I,N];o&&W.push(o),j&&W.push(s);var V=this.compileAndRun(z,W);return g?V.reshape([1,m,f,a.outChannels]):V.reshape([1,a.outChannels,m,f])},n.prototype.fusedConv2d=function(e){var t=e.input,a=e.filter,o=e.convInfo,i=e.bias,s=e.activation,u=e.preluActivationWeights;if(o.filterHeight===1&&o.filterWidth===1&&o.dilationHeight===1&&o.dilationWidth===1&&o.strideHeight===1&&o.strideWidth===1&&(o.padInfo.type==="SAME"||o.padInfo.type==="VALID"))return this.conv2dByMatMul(t,a,o,i,s,u);if(ee().getBool("WEBGL_CONV_IM2COL")&&t.shape[0]===1)return this.conv2dWithIm2Row(t,a,o,i,s,u);var c=i!=null,d=u!=null,f=s?Zi(s,!1):null,m=new Xn(o,c,f,d),g=[t,a];return i&&g.push(i),u&&g.push(u),this.compileAndRun(m,g)},n.prototype.conv2d=function(e,t,a){if(a.filterHeight===1&&a.filterWidth===1&&a.dilationHeight===1&&a.dilationWidth===1&&a.strideHeight===1&&a.strideWidth===1&&(a.padInfo.type==="SAME"||a.padInfo.type==="VALID"))return this.conv2dByMatMul(e,t,a);if(ee().getBool("WEBGL_CONV_IM2COL")&&e.shape[0]===1)return this.conv2dWithIm2Row(e,t,a);var o=new Xn(a);return this.compileAndRun(o,[e,t])},n.prototype.conv2dDerInput=function(e,t,a){var o=new Fa(a);return this.compileAndRun(o,[e,t])},n.prototype.conv2dDerFilter=function(e,t,a){var o=new pa(a);return this.compileAndRun(o,[e,t])},n.prototype.fusedDepthwiseConv2D=function(e){var t,a=e.input,o=e.filter,i=e.convInfo,s=e.bias,u=e.activation,c=e.preluActivationWeights,d=ee().getBool("WEBGL_PACK_DEPTHWISECONV")&&i.strideWidth<=2&&i.outChannels/i.inChannels==1,f=u?Zi(u,d):null,m=[a,o],g=s!=null,x=c!=null;return g&&m.push(s),x&&m.push(c),d?(t=new ft(i,g,f,x),this.compileAndRun(t,m)):(t=new yt(i,g,f,x),this.compileAndRun(t,m))},n.prototype.depthwiseConv2D=function(e,t,a){var o;return ee().getBool("WEBGL_PACK_DEPTHWISECONV")&&a.strideWidth<=2&&a.outChannels/a.inChannels==1?(o=new ft(a),this.compileAndRun(o,[e,t])):(o=new yt(a),this.compileAndRun(o,[e,t]))},n.prototype.depthwiseConv2DDerInput=function(e,t,a){var o=new Vt(a);return this.compileAndRun(o,[e,t])},n.prototype.depthwiseConv2DDerFilter=function(e,t,a){var o=new ct(a);return this.compileAndRun(o,[e,t])},n.prototype.conv3d=function(e,t,a){var o=new bt(a);return this.compileAndRun(o,[e,t])},n.prototype.conv3dDerInput=function(e,t,a){var o=new He(a);return this.compileAndRun(o,[e,t])},n.prototype.conv3dDerFilter=function(e,t,a){var o=new jt(a);return this.compileAndRun(o,[e,t])},n.prototype.maxPool=function(e,t){var a=new Qs(t,"max",!1);return this.compileAndRun(a,[e])},n.prototype.avgPool=function(e,t){var a=new Qs(t,"avg",!1);return this.compileAndRun(a,[e],"float32")},n.prototype.maxPoolBackprop=function(e,t,a,o){var i=new Qs(o,"max",!0),s=this.compileAndRun(i,[t]),u=new fd(o),c=this.compileAndRun(u,[e,s],t.dtype);return s.dispose(),c},n.prototype.avgPoolBackprop=function(e,t,a){var o=new Fe(a);return this.compileAndRun(o,[e],t.dtype)},n.prototype.cast=function(e,t){return ri(e,t,this)},n.prototype.unstack=function(e,t){for(var a=e.shape[t],o=new Array(e.rank-1),i=0,s=0;s<e.rank;s++)s!==t&&(o[i++]=e.shape[s]);var u=new Array(e.rank).fill(0),c=e.shape.slice();c[t]=1;var d=new Array(a);for(s=0;s<d.length;s++)u[t]=s,d[s]=this.slice(e,u,c).reshape(o);return d},n.prototype.avgPool3d=function(e,t){var a=new Zs(t,"avg",!1);return this.compileAndRun(a,[e],"float32")},n.prototype.avgPool3dBackprop=function(e,t,a){var o=new we(a);return this.compileAndRun(o,[e],t.dtype)},n.prototype.maxPool3d=function(e,t){var a=new Zs(t,"max",!1);return this.compileAndRun(a,[e],"float32")},n.prototype.maxPool3dBackprop=function(e,t,a,o){var i=new Zs(o,"max",!0),s=this.compileAndRun(i,[t]),u=new vd(o),c=this.compileAndRun(u,[e,s],t.dtype);return s.dispose(),c},n.prototype.reshape=function(e,t){var a=this.texData.get(e.dataId);if(a.isPacked&&!ra(e.shape,t)&&(a.texture===null||!ra(a.shape,t))){var o=this.packedReshape(e,t);return X.makeTensorFromDataId(o.dataId,o.shape,o.dtype)}return go(e,t)},n.prototype.resizeBilinear=function(e,t,a,o){var i=ee().getBool("WEBGL_PACK_IMAGE_OPERATIONS")?new Rd(e.shape,t,a,o):new Cd(e.shape,t,a,o);return this.compileAndRun(i,[e],"float32")},n.prototype.resizeBilinearBackprop=function(e,t,a){var o=new _d(e,t,a);return this.compileAndRun(o,[e])},n.prototype.resizeNearestNeighbor=function(e,t,a,o){var i=new Td(e.shape,t,a,o);return this.compileAndRun(i,[e])},n.prototype.resizeNearestNeighborBackprop=function(e,t,a){var o=new Ad(e,t,a);return this.compileAndRun(o,[e])},n.prototype.multinomial=function(e,t,a,o){var i=t?e:Sa(e),s=i.shape[0],u=i.shape[1],c=new md(s,u,a),d=c.getCustomSetupFunc(o);return this.compileAndRun(c,[i],"int32",d)},n.prototype.oneHot=function(e,t,a,o){var i=new gd(e.size,t,a,o);return this.compileAndRun(i,[e])},n.prototype.diag=function(e){var t=new fa(e.size);return this.compileAndRun(t,[e])},n.prototype.nonMaxSuppression=function(e,t,a,o,i){return eo("tf.nonMaxSuppression() in webgl locks the UI thread. Call tf.nonMaxSuppressionAsync() instead"),ai(e.dataSync(),t.dataSync(),a,o,i)},n.prototype.cropAndResize=function(e,t,a,o,i,s){var u=new Lt(e.shape,t.shape,o,i,s);return this.compileAndRun(u,[e,t,a],"float32")},n.prototype.depthToSpace=function(e,t,a){D(t>1,function(){return"blockSize should be > 1 for depthToSpace, but was: "+t});var o=e.shape[0],i=a==="NHWC"?e.shape[1]:e.shape[2],s=a==="NHWC"?e.shape[2]:e.shape[3],u=a==="NHWC"?e.shape[3]:e.shape[1],c=i*t,d=s*t,f=u/(t*t),m=new Sr(a==="NHWC"?[o,c,d,f]:[o,f,c,d],t,a);return this.compileAndRun(m,[e])},n.prototype.split=function(e,t,a){return Ki(e,t,a)},n.prototype.scatterND=function(e,t,a){var o=ka(0,e,a),i=o.sliceRank,s=o.numUpdates,u=o.sliceSize,c=o.strides,d=o.outputSize,f=[d/u,u],m=e.reshape([s,i]),g=t.reshape([s,u]);if(d===0)return go(_n([]),a);var x=We(0),E=new Ec(s,i,m.rank,g.rank,c,f);return this.compileAndRun(E,[g,m,x]).reshape(a)},n.prototype.sparseToDense=function(e,t,a,o){var i=ka(0,e,a),s=i.sliceRank,u=i.numUpdates,c=i.strides,d=i.outputSize,f=new Ec(u,s,e.rank,t.rank,c,[d,1],!1);return this.compileAndRun(f,[t,e,o]).reshape(a)},n.prototype.fft=function(e){return this.fftImpl(e,!1)},n.prototype.ifft=function(e){return this.fftImpl(e,!0)},n.prototype.fftImpl=function(e,t){var a=this.texData.get(e.dataId),o=new rc($i,e.shape,t),i=new rc(od,e.shape,t),s=[this.makeComplexComponentTensorInfo(e,a.complexTensors.real),this.makeComplexComponentTensorInfo(e,a.complexTensors.imag)],u=this.compileAndRun(o,s),c=this.compileAndRun(i,s),d=this.complex(u,c).as2D(e.shape[0],e.shape[1]);return u.dispose(),c.dispose(),d},n.prototype.gatherND=function(e,t){var a=t.shape,o=a[a.length-1],i=Pi(e,t),s=i[0],u=i[1],c=i[2],d=i[3],f=t.reshape([u,o]),m=e.reshape([e.size/c,c]),g=new ud(o,d,[u,c]);return this.compileAndRun(g,[m,f]).reshape(s)},n.prototype.fill=function(e,t,a){if((a=a||ar(t))==="string"){var o=bn(a,ae(e));return o.fill(t),X.makeTensor(o,e,a,this)}var i=new id(e,t),s=i.getCustomSetupFunc(t);return this.compileAndRun(i,[],a,s)},n.prototype.onesLike=function(e){if(e.dtype==="string")throw new Error("onesLike is not supported under string dtype");return this.fill(e.shape,1,e.dtype)},n.prototype.zerosLike=function(e){return this.fill(e.shape,e.dtype==="string"?"":0,e.dtype)},n.prototype.linspace=function(e,t,a){return Vi(e,t,a)},n.prototype.makeTensorInfo=function(e,t){var a=this.write(null,e,t);return this.texData.get(a).usage=null,{dataId:a,shape:e,dtype:t}},n.prototype.makeOutput=function(e,t){var a=this.makeTensorInfo(e,t).dataId;return X.makeTensorFromDataId(a,e,t,this)},n.prototype.unpackTensor=function(e){var t=new $d(e.shape);return this.runWebGLProgram(t,[e],e.dtype)},n.prototype.packTensor=function(e){var t=new yd(e.shape);return this.runWebGLProgram(t,[e],e.dtype,null,!0)},n.prototype.packedReshape=function(e,t){var a=[ea(e.shape)].concat(ta(e.shape)),o={dtype:e.dtype,shape:a,dataId:e.dataId},i=[ea(t)].concat(ta(t)),s=new Ed(i,a),u=this.runWebGLProgram(s,[o],e.dtype,null,!0);return{dataId:u.dataId,shape:t,dtype:u.dtype}},n.prototype.decode=function(e){var t,a=this.texData.get(e),o=a.isPacked,i=a.shape,s=a.dtype,u=na(i);return t=o?new Gr(u):new Gt(u),{dtype:s,shape:i,dataId:this.runWebGLProgram(t,[{shape:u,dtype:s,dataId:e}],s,null,!0).dataId}},n.prototype.runWebGLProgram=function(e,t,a,o,i){var s=this;i===void 0&&(i=!1);var u=this.makeTensorInfo(e.outputShape,a),c=this.texData.get(u.dataId);if(e.packedOutput&&(c.isPacked=!0),e.outPackingScheme===Ea.DENSE){var d=Zt(e.outputShape);c.texShape=d.map(function(S){return 2*S})}if(e.outTexUsage!=null&&(c.usage=e.outTexUsage),ae(u.shape)===0)return c.values=Cn(u.dtype,0),u;var f=[],m=t.map(function(S){if(S.dtype==="complex64")throw new Error("GPGPUProgram does not support complex64 input. For complex64 dtypes, please separate the program into real and imaginary parts.");var I=s.texData.get(S.dataId);if(I.texture==null){if(!e.packedInputs&&ae(S.shape)<=ee().getNumber("WEBGL_SIZE_UPLOAD_UNIFORM"))return{shape:S.shape,texData:null,isUniform:!0,uniformValues:I.values};e.packedInputs&&(I.isPacked=!0,I.shape=S.shape)}else if(!!I.isPacked!=!!e.packedInputs)S=I.isPacked?s.unpackTensor(S):s.packTensor(S),f.push(S),I=s.texData.get(S.dataId);else if(I.isPacked&&!ra(I.shape,S.shape)){var M=S,j=S.shape;S.shape=I.shape,S=s.packedReshape(S,j),f.push(S),I=s.texData.get(S.dataId),M.shape=j}return s.uploadToGPU(S.dataId),{shape:S.shape,texData:I,isUniform:!1}});this.uploadToGPU(u.dataId);var g,x={shape:u.shape,texData:c,isUniform:!1},E=function(S,I,M){var j="";I.concat(M).forEach(function(W){var V=W.texData!=null&&W.texData.slice!=null&&W.texData.slice.flatOffset>0,Z=W.isUniform?"uniform":W.texData.texShape;j+=W.shape+"_"+Z+"_"+V});var G=S.userCode,z=S.constructor.name;return z+="_"+j+"_"+G}(e,m,x),w=this.getAndSaveBinary(E,function(){return function(S,I,M,j){var G=I.userCode,z=M.map(function(pe,Ce){var Re={logicalShape:pe.shape,texShape:pe.isUniform?null:pe.texData.texShape,isUniform:pe.isUniform,isPacked:!pe.isUniform&&pe.texData.isPacked,flatOffset:null};return pe.texData!=null&&pe.texData.slice!=null&&pe.texData.slice.flatOffset>0&&(Re.flatOffset=pe.texData.slice.flatOffset),{name:I.variableNames[Ce],shapeInfo:Re}}),W=z.map(function(pe){return pe.shapeInfo}),V={logicalShape:j.shape,texShape:j.texData.texShape,isUniform:!1,isPacked:j.texData.isPacked,flatOffset:null},Z=T(z,V,G,I.packedInputs),J=S.createProgram(Z),me=null,fe=S.getUniformLocation(J,"NAN",!1);ee().getNumber("WEBGL_VERSION")===1&&(me=S.getUniformLocation(J,"INFINITY",!1));for(var he={},Ee=0;Ee<I.variableNames.length;Ee++){var be=I.variableNames[Ee];he[be]=S.getUniformLocation(J,be,!1),he["offset"+be]=S.getUniformLocation(J,"offset"+be,!1)}return{program:I,source:Z,webGLProgram:J,uniformLocations:he,inShapeInfos:W,outShapeInfo:V,infLoc:me,nanLoc:fe}}(s.gpgpu,e,m,x)}),C=this.activeTimers!=null;if(C&&(g=this.startTimer()),function(S,I,M,j,G){wc(I.inShapeInfos,M),wc([I.outShapeInfo],[j]);var z=j.texData.texture,W=j.texData.texShape;j.texData.isPacked?S.setOutputPackedMatrixTexture(z,W[0],W[1]):S.setOutputMatrixTexture(z,W[0],W[1]),S.setProgram(I.webGLProgram),ee().getNumber("WEBGL_VERSION")===1&&I.infLoc!==null&&S.gl.uniform1f(I.infLoc,1/0),I.nanLoc!==null&&S.gl.uniform1f(I.nanLoc,NaN),M.forEach(function(V,Z){var J=I.program.variableNames[Z],me=I.uniformLocations[J],fe=I.uniformLocations["offset"+J];if(me!=null)if(V.isUniform)if(ae(V.shape)<2)S.gl.uniform1f(me,V.uniformValues[0]);else{var he=V.uniformValues;he instanceof Float32Array||(he=new Float32Array(he)),S.gl.uniform1fv(me,he)}else 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e=this;this.disposed||(ee().getBool("IS_TEST")||Object.keys(this.binaryCache).forEach(function(t){e.gpgpu.deleteProgram(e.binaryCache[t].webGLProgram),delete e.binaryCache[t]}),this.textureManager.dispose(),this.canvas!=null&&typeof HTMLCanvasElement!="undefined"&&this.canvas instanceof HTMLCanvasElement?this.canvas.remove():this.canvas=null,this.gpgpuCreatedLocally&&(this.gpgpu.program=null,this.gpgpu.dispose()),this.disposed=!0)},n.prototype.floatPrecision=function(){var e=this;return this.floatPrecisionValue==null&&(this.floatPrecisionValue=en(function(){if(!ee().get("WEBGL_RENDER_FLOAT32_ENABLED")){var t=ee().getBool("DEBUG");ee().set("DEBUG",!1);var a=e.abs(We(1e-8)).dataSync()[0];if(ee().set("DEBUG",t),a>0)return 32}return 16})),this.floatPrecisionValue},n.prototype.epsilon=function(){return this.floatPrecision()===32?1e-7:1e-4},n.prototype.uploadToGPU=function(e){var t,a=this.texData.get(e),o=a.shape,i=a.dtype,s=a.values,u=a.texture,c=a.usage,d=a.isPacked;if(u==null){var f,m=this.activeTimers!=null;m&&(f=$());var g=a.texShape;if(g==null&&(g=xi(o,d),a.texShape=g),s!=null){var x=na(o),E=void 0,w=g[1],C=g[0],N=s instanceof Uint8Array;d?(w=(t=Lr(g[0],g[1]))[0],C=t[1],E=new si(x,[C,w],N)):E=new ii(x,[C,w],N);var S=this.makeTensorInfo([C,w],i);this.texData.get(S.dataId).usage=N?An.PIXELS:An.UPLOAD,this.gpgpu.uploadDenseMatrixToTexture(this.getTexture(S.dataId),w,C,s);var I=this.runWebGLProgram(E,[S],i,null,!0),M=this.texData.get(I.dataId);a.texture=M.texture,a.texShape=M.texShape,a.isPacked=M.isPacked,a.usage=M.usage,this.disposeData(S.dataId),this.texData.delete(I.dataId),a.values=null,m&&(this.uploadWaitMs+=$()-f)}else{var j=this.acquireTexture(g,c,i,d);a.texture=j}}},n.prototype.convertAndCacheOnCPU=function(e,t){var a=this.texData.get(e),o=a.dtype;return this.releaseGPUData(e),t!=null&&(a.values=function(i,s){if(s==="float32"||s==="complex64")return i;if(s==="int32"||s==="bool"){for(var u=s==="int32"?new Int32Array(i.length):new 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only NHWC is supported");D(d.rank===4,function(){return"Error in separableConv2d: input must be rank 4, but got rank "+d.rank+"."}),D(u.rank===4,function(){return"Error in separableConv2d: depthwise filter must be rank 4, but got rank "+u.rank+"."}),D(c.rank===4,function(){return"Error in separableConv2d: pointwise filter must be rank 4, but got rank "+u.rank+"."}),D(c.shape[0]===1,function(){return"Error in separableConv2d: the first dimension of pointwise filter  must be 1, but got "+c.shape[0]+"."}),D(c.shape[1]===1,function(){return"Error in separableConv2d: the second dimension of pointwise filter must be 1, but got "+c.shape[1]+"."});var m=u.shape[2],g=u.shape[3];D(c.shape[2]===m*g,function(){return"Error in separableConv2d: the third dimension of pointwise filter must be "+m*g+", but got "+c.shape[2]+"."});var x=os(d,u,t,a,i,o),E=xo(x,c,1,"valid",i);return f?E.as3D(E.shape[1],E.shape[2],E.shape[3]):E}}),cp=K({conv2dTranspose_:function(r,n,e,t,a,o){return nl(e,F(r,"x","conv2dTranspose"),F(n,"filter","conv2dTranspose"),t,a,"NHWC",o)}}),lp=K({conv3dTranspose_:function(r,n,e,t,a){return rl(e,F(r,"x","conv3dTranspose"),F(n,"filter","conv3dTranspose"),t,a)}}),uu=K({matMul_:function(r,n,e,t){var a;e===void 0&&(e=!1),t===void 0&&(t=!1);var o=F(r,"a","matMul"),i=F(n,"b","matMul");a=Wt(o,i),o=a[0],i=a[1];var s=e?o.shape[o.rank-2]:o.shape[o.rank-1],u=t?i.shape[i.rank-1]:i.shape[i.rank-2],c=e?o.shape[o.rank-1]:o.shape[o.rank-2],d=t?i.shape[i.rank-2]:i.shape[i.rank-1],f=o.shape.slice(0,-2),m=i.shape.slice(0,-2),g=ae(f),x=ae(m);D(o.rank>=2&&i.rank>=2&&o.rank===i.rank,function(){return"Error in matMul: inputs must have the same rank of at least 2, got ranks "+o.rank+" and "+i.rank+"."}),D(Oe(f,m),function(){return"Error in matMul: outer dimensions ("+f+") and ("+m+") of Tensors with shapes "+o.shape+" and "+i.shape+" must match."}),D(s===u,function(){return"Error in matMul: inner shapes ("+s+") and ("+u+") of Tensors with shapes "+o.shape+" and "+i.shape+" and transposeA="+e+" and transposeB="+t+" must match."});var E=o.shape.slice(0,-2).concat([c,d]),w=e?o.as3D(g,s,c):o.as3D(g,c,s),C=t?i.as3D(x,d,u):i.as3D(x,u,d),N={transposeA:e,transposeB:t};return X.runKernelFunc(function(S,I){var M=S.batchMatMul(w,C,e,t);return I([w,C]),M},{a:w,b:C},function(S,I){var M=I,j=M[0],G=M[1];return e||t?!e&&t?{a:function(){return S.matMul(G,!1,!1)},b:function(){return S.matMul(j,!0,!1)}}:e&&!t?{a:function(){return G.matMul(S,!1,!0)},b:function(){return j.matMul(S,!1,!1)}}:{a:function(){return G.matMul(S,!0,!0)},b:function(){return S.matMul(j,!0,!0)}}:{a:function(){return S.matMul(G,!1,!0)},b:function(){return j.matMul(S,!0,!1)}}},"BatchMatMul",N).reshape(E)}}),dp=K({dot_:function(r,n){var e=F(r,"t1","dot"),t=F(n,"t2","dot");D(!(e.rank!==1&&e.rank!==2||t.rank!==1&&t.rank!==2),function(){return"Error in dot: inputs must all be rank 1 or 2, but got ranks "+e.rank+" and "+t.rank+"."});var a=e.rank===1?e.size:e.shape[1],o=t.rank===1?t.size:t.shape[0];return D(a===o,function(){return"Error in dot: inner dimensions of inputs must match, but got "+a+" and "+o+"."}),e.rank===1&&t.rank===1?e.as2D(1,-1).matMul(t.as2D(-1,1)).asScalar():e.rank===1&&t.rank===2?e.as2D(1,-1).matMul(t.as2D(t.shape[0],t.shape[1])).as1D():e.rank===2&&t.rank===1?e.matMul(t.as2D(-1,1)).as1D():e.matMul(t.as2D(t.shape[0],t.shape[1]))}}),hp=K({outerProduct_:function(r,n){var e=F(r,"v1","outerProduct"),t=F(n,"v2","outerProduct");return D(e.rank===1&&t.rank===1,function(){return"Error in outerProduct: inputs must be rank 1, but got ranks "+e.rank+" and "+t.rank+"."}),e.as2D(-1,1).matMul(t.as2D(1,-1))}}),hi=K({reverse_:function(r,n){var e=F(r,"x","reverse");if(e.rank===0)return e.clone();var t=je(n,e.shape);return X.runKernelFunc(function(a){return a.reverse(e,t)},{$x:e},function(a){return{$x:function(){return a.reverse(t)}}}).reshapeAs(e)}}),pp=K({reverse1d_:function(r){var n=F(r,"x","reverse");return D(n.rank===1,function(){return"Error in reverse1D: x must be rank 1 but got rank "+n.rank+"."}),hi(n,0)}}),fp=K({reverse2d_:function(r,n){var e=F(r,"x","reverse");return D(e.rank===2,function(){return"Error in reverse2D: x must be rank 2 but got rank "+e.rank+"."}),hi(e,n)}}),vp=K({reverse3d_:function(r,n){var e=F(r,"x","reverse");return D(e.rank===3,function(){return"Error in reverse3D: x must be rank 3 but got rank "+e.rank+"."}),hi(e,n)}}),mp=K({reverse4d_:function(r,n){var e=F(r,"x","reverse");return D(e.rank===4,function(){return"Error in reverse4D: x must be rank 4 but got rank "+e.rank+"."}),hi(e,n)}});function ul(r,n,e,t,a,o){var i=F(r,"x","maxPool"),s=i,u=!1;i.rank===3&&(u=!0,s=i.as4D(1,i.shape[0],i.shape[1],i.shape[2])),t==null&&(t=[1,1]),D(s.rank===4,function(){return"Error in maxPool: input must be rank 4 but got rank "+s.rank+"."}),D(Bn(e,t),function(){return"Error in maxPool: Either strides or dilations must be 1. Got strides "+e+" and dilations '"+t+"'"}),o!=null&&D(Be(a),function(){return"Error in maxPool: pad must be an integer when using, dimRoundingMode "+o+" but got pad "+a+"."});var c=Vr(s.shape,n,e,t,a,o);if(c.filterWidth===1&&c.filterHeight===1&&Oe(c.inShape,c.outShape))return i.clone();var d=[s],f=X.runKernelFunc(function(m,g){var x=m.maxPool(s,c);return g([s,x]),x},{x:s},function(m,g){var x=g[0],E=g[1];return{x:function(){return function(w,C,N,S,I,M,j,G){var z=F(w,"dy","maxPoolBackprop"),W=F(C,"input","maxPoolBackprop"),V=F(N,"output","maxPoolBackprop");D(W.rank===z.rank,function(){return"Rank of input ("+W.rank+") does not match rank of dy ("+z.rank+")"}),M==null&&(M=[1,1]),D(Bn(I,M),function(){return"Error in maxPoolBackProp: Either strides or dilations must be 1. Got strides "+I+" and dilations '"+M+"'"}),D(z.rank===4,function(){return"Error in maxPoolBackprop: dy must be rank 4 but got rank "+z.rank+"."}),D(W.rank===4,function(){return"Error in maxPoolBackprop: input must be rank 4 but got rank "+W.rank+"."}),G!=null&&D(Be(j),function(){return"Error in maxPoolBackprop: pad must be an integer when using, dimRoundingMode "+G+" but got pad "+j+"."});var Z=Vr(W.shape,S,I,M,j,G);return X.runKernelFunc(function(J){return J.maxPoolBackprop(z,W,V,Z)},{$dy:z,$input:W})}(m,x,E,n,e,t,a)}}},"MaxPool",c,d);return u?f.as3D(f.shape[1],f.shape[2],f.shape[3]):f}function cl(r,n,e,t,a,o){var i=F(r,"x","avgPool","float32");t==null&&(t=[1,1]),D(Bn(e,t),function(){return"Error in avgPool: Either strides or dilations must be 1. Got strides "+e+" and dilations '"+t+"'"});var s=i,u=!1;i.rank===3&&(u=!0,s=i.as4D(1,i.shape[0],i.shape[1],i.shape[2])),D(s.rank===4,function(){return"Error in avgPool: x must be rank 4 but got rank "+s.rank+"."}),o!=null&&D(Be(a),function(){return"Error in avgPool: pad must be an integer when using, dimRoundingMode "+o+" but got pad "+a+"."});var c=Vr(s.shape,n,e,t,a,o);if(c.filterWidth===1&&c.filterHeight===1&&Oe(c.inShape,c.outShape))return i.clone();var d=X.runKernelFunc(function(f){return f.avgPool(s,c)},{x:s},function(f){return{x:function(){return function(m,g,x,E,w,C){var N=F(m,"dy","avgPoolBackprop"),S=F(g,"input","avgPoolBackprop");D(S.rank===N.rank,function(){return"Rank of input ("+S.rank+") does not match rank of dy ("+N.rank+")"}),w==null&&(w=[1,1]),D(Bn(E,w),function(){return"Error in avgPoolBackprop: Either strides or dilations must be 1. Got strides "+E+" and dilations '"+w+"'"});var I=S,M=N,j=!1;S.rank===3&&(j=!0,I=S.as4D(1,S.shape[0],S.shape[1],S.shape[2]),M=N.as4D(1,N.shape[0],N.shape[1],N.shape[2])),D(M.rank===4,function(){return"Error in avgPoolBackprop: dy must be rank 4 but got rank "+M.rank+"."}),D(I.rank===4,function(){return"Error in avgPoolBackprop: input must be rank 4 but got rank "+I.rank+"."});var G=Vr(I.shape,x,E,w,C),z=X.runKernelFunc(function(W){return W.avgPoolBackprop(M,I,G)},{dy4D:M,input4D:I});return j?z.as3D(z.shape[1],z.shape[2],z.shape[3]):z}(f,s,n,e,t,a)}}},"AvgPool",c);return d=d.cast(i.dtype),u?d.as3D(d.shape[1],d.shape[2],d.shape[3]):d}var ll=K({maxPool_:function(r,n,e,t,a){return ul(r,n,e,1,t,a)}}),dl=K({avgPool_:function(r,n,e,t,a){return cl(r,n,e,1,t,a)}}),gp=K({pool_:function(r,n,e,t,a,o){a==null&&(a=[1,1]),o==null&&(o=1),t===0&&(t="valid");var i=F(r,"x","maxPool"),s=i,u=!1;i.rank===3&&(u=!0,s=i.as4D(1,i.shape[0],i.shape[1],i.shape[2])),D(Bn(o,a),function(){return"Error in pool: Either strides or dilations must be 1. Got strides "+o+" and dilations '"+a+"'"});var c,d=Vr(s.shape,n,o,a,t),f=[d.dilationHeight,d.dilationWidth];c=t==="same"?function(I,M){var j=I.map(function(W,V){return W+(W-1)*(M[V]-1)}).map(function(W){return W-1}),G=j.map(function(W){return Math.floor(W/2)}),z=j.map(function(W,V){return W-G[V]});return j.map(function(W,V){return[G[V],z[V]]})}([d.filterHeight,d.filterWidth],f):[[0,0],[0,0]];var m=f[0]===1&&f[1]===1,g=function(I,M,j){var G=j.map(function(fe){return fe[0]}),z=j.map(function(fe){return fe[1]}),W=I.concat(G,z),V=M.map(function(fe,he){return(fe-W[he]%fe)%fe}),Z=z.map(function(fe,he){return fe+V[he]}),J=M.map(function(fe,he){return[G[he],Z[he]]}),me=M.map(function(fe,he){return[0,V[he]]});return[J,me]}([d.inHeight,d.inWidth],f,c),x=g[0],E=g[1],w=m?t:"valid",C=m?s:Mi(s,f,x),N=(e==="avg"?function(){return cl(C,n,o,1,w)}:function(){return ul(C,n,o,1,w)})(),S=m?N:oo(N,f,E);return u?S.as3D(S.shape[1],S.shape[2],S.shape[3]):S}}),yp=K({maxPool3d_:function(r,n,e,t,a,o,i){o===void 0&&(o="NDHWC");var s=F(r,"x","maxPool3d"),u=s,c=!1;s.rank===4&&(c=!0,u=s.as5D(1,s.shape[0],s.shape[1],s.shape[2],s.shape[3])),i==null&&(i=[1,1,1]),D(u.rank===5,function(){return"Error in maxPool3d: x must be rank 5 but got rank "+u.rank+"."}),D(o==="NDHWC",function(){return"Error in maxPool3d: Only NDHWC is currently supported, but got dataFormat of "+o}),D(Bn(e,i),function(){return"Error in maxPool3d: Either strides or dilations must be 1. 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============================
Hi there \u{1F44B}. 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. Visit https://github.com/tensorflow/tfjs-node for more details.
============================`));var o={};return this.data.set(o,{values:e,dtype:a}),o},n.prototype.move=function(e,t,a,o){this.data.set(e,{values:t,dtype:o})},n.prototype.numDataIds=function(){return this.data.numDataIds()},n.prototype.read=function(e){return ve(this,void 0,void 0,function(){return ye(this,function(t){return[2,this.readSync(e)]})})},n.prototype.readSync=function(e){var t=this.data.get(e),a=t.dtype,o=t.complexTensors;return a==="complex64"?yo(this.readSync(o.real.dataId),this.readSync(o.imag.dataId)):this.data.get(e).values},n.prototype.bufferSync=function(e){var t=this.readSync(e.dataId),a=t;if(e.dtype==="string")try{a=t.map(function(o){return ut(o)})}catch(o){throw new Error("Failed to decode encoded string bytes into utf-8")}return Je(e.shape,e.dtype,a)},n.prototype.makeOutput=function(e,t,a){var o=this.write(e,t,a);return X.makeTensorFromDataId(o,t,a,this)},n.prototype.disposeData=function(e){if(this.data.has(e)){var t=this.data.get(e).complexTensors;t!=null&&(t.real.dispose(),t.imag.dispose()),this.data.delete(e)}},n.prototype.time=function(e){return ve(this,void 0,void 0,function(){var t;return ye(this,function(a){return t=$(),e(),[2,{kernelMs:$()-t}]})})},n.prototype.memory=function(){return{unreliable:!0,reasons:["The reported memory is an upper bound. 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i=a?e.shape[1]:e.shape[2],s=a?e.shape[2]:e.shape[1],u=o?t.shape[1]:t.shape[2],c=e.shape[0],d=this.readSync(e.dataId),f=this.readSync(t.dataId),m=a?[e.strides[0],1,e.strides[1]]:[e.strides[0],e.strides[1],1],g=m[0],x=m[1],E=m[2],w=o?[1,t.strides[1],t.strides[0]]:[t.strides[1],1,t.strides[0]],C=w[0],N=w[1],S=w[2],I=s*u,M=Je([c,s,u],e.dtype),j=M.values,G=this.blockSize,z=0;z<c;z++)for(var W=0;W<s;W+=G)for(var V=0;V<u;V+=G)for(var Z=0;Z<i;Z+=G)for(var J=Math.min(W+G,s),me=Math.min(V+G,u),fe=Math.min(Z+G,i),he=W;he<J;he++)for(var Ee=V;Ee<me;Ee++){for(var be=0,pe=Z;pe<fe;pe++)be+=d[z*g+he*x+pe*E]*f[pe*C+Ee*N+z*S];j[z*I+(he*u+Ee)]+=be}return M.toTensor()},n.prototype.fusedBatchMatMul=function(e){var t=e.a,a=e.b,o=e.transposeA,i=e.transposeB,s=e.bias,u=e.activation,c=e.preluActivationWeights,d=this.batchMatMul(t,a,o,i);return s&&(d=this.add(d,s)),u&&(d=yu(this,d,u,c)),d},n.prototype.multiply=function(e,t){return e.dtype==="complex64"||t.dtype==="complex64"?this.broadcastedBinaryComplexOp(e.cast("complex64"),t.cast("complex64"),function(a,o,i,s){return{real:a*i-o*s,imag:a*s+o*i}}):this.broadcastedBinaryOp(e,t,yn(e.dtype,t.dtype),function(a,o){return a*o})},n.prototype.realDivide=function(e,t){return ge([e,t],"realDivide"),this.broadcastedBinaryOp(e,t,"float32",function(a,o){return a/o})},n.prototype.floorDiv=function(e,t){return ge([e,t],"floorDiv"),this.broadcastedBinaryOp(e,t,"int32",function(a,o){return Math.floor(a/o)})},n.prototype.sum=function(e,t){ge(e,"sum"),Wn("sum",t,e.rank);for(var a=Nn(e.shape,t),o=a[0],i=a[1],s=Jt(o,yn(e.dtype,"int32")),u=ae(i),c=this.readSync(s.dataId),d=this.readSync(e.dataId),f=0;f<c.length;++f){for(var m=f*u,g=0,x=0;x<u;++x)g+=d[m+x];c[f]=g}return s},n.prototype.prod=function(e,t){ge(e,"sum");for(var a=Nn(e.shape,t),o=a[0],i=a[1],s=Jt(o,yn(e.dtype,"int32")),u=ae(i),c=this.readSync(s.dataId),d=this.readSync(e.dataId),f=0;f<c.length;++f){for(var m=f*u,g=1,x=0;x<u;++x)g*=d[m+x];c[f]=g}return s},n.prototype.unsortedSegmentSum=function(e,t,a){ge(e,"unsortedSegmentSum");for(var o=[],i=e.rank-t.rank,s=0;s<i;++s)t=t.expandDims(s+1);for(s=0;s<a;++s){var u=We(s,"int32"),c=Jc(u,t).asType("float32").mul(e).sum(0);o.push(c)}return Ar(o)},n.prototype.argMin=function(e,t){ge(e,"argMin");var a=[t];Wn("argMin",a,e.rank);for(var o=Nn(e.shape,a),i=o[0],s=o[1],u=Jt(i,"int32"),c=ae(s),d=this.readSync(u.dataId),f=this.readSync(e.dataId),m=0;m<d.length;++m){for(var g=m*c,x=f[g],E=0,w=0;w<c;++w){var C=f[g+w];C<x&&(x=C,E=w)}d[m]=E}return u},n.prototype.argMax=function(e,t){ge(e,"argMax");var a=[t];Wn("argMax",a,e.rank);for(var o=Nn(e.shape,a),i=o[0],s=o[1],u=Jt(i,"int32"),c=ae(s),d=this.readSync(u.dataId),f=this.readSync(e.dataId),m=0;m<d.length;++m){for(var g=m*c,x=f[g],E=0,w=0;w<c;++w){var C=f[g+w];C>x&&(x=C,E=w)}d[m]=E}return u},n.prototype.cumsum=function(e,t,a,o){if(ge(e,"cumsum"),t!==e.rank-1)throw new Error("backend.cumsum in CPU expects an 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a>o?1:0})},n.prototype.greaterEqual=function(e,t){return ge([e,t],"greaterEqual"),this.broadcastedBinaryOp(e,t,"bool",function(a,o){return a>=o?1:0})},n.prototype.logicalNot=function(e){ge(e,"logicalNot");for(var t=this.readSync(e.dataId),a=new Uint8Array(t.length),o=0;o<t.length;++o)a[o]=t[o]?0:1;return this.makeOutput(a,e.shape,"bool")},n.prototype.logicalAnd=function(e,t){return ge([e,t],"logicalAnd"),this.broadcastedBinaryOp(e,t,"bool",function(a,o){return a&&o})},n.prototype.logicalOr=function(e,t){return ge([e,t],"logicalOr"),this.broadcastedBinaryOp(e,t,"bool",function(a,o){return a||o})},n.prototype.select=function(e,t,a){ge([e,t,a],"select");for(var o=this.readSync(e.dataId),i=this.readSync(t.dataId),s=this.readSync(a.dataId),u=Jt(t.shape,yn(t.dtype,a.dtype)),c=this.readSync(u.dataId),d=0,f=e.rank===0||e.rank>1||t.rank===1?1:ae(t.shape.slice(1)),m=0;m<o.length;m++)for(var g=0;g<f;g++)o[m]===1?c[d++]=i[m]:c[d++]=s[m];return u},n.prototype.where=function(e){ge([e],"where");var t=this.readSync(e.dataId);return Yi(e.shape,t)},n.prototype.topk=function(e,t,a){return ge(e,"topk"),qs(this.readSync(e.dataId),e.shape,e.dtype,t)},n.prototype.min=function(e,t){ge(e,"min"),Wn("min",t,e.rank);for(var a=Nn(e.shape,t),o=a[0],i=a[1],s=Jt(o,e.dtype),u=ae(i),c=this.readSync(s.dataId),d=this.readSync(e.dataId),f=0;f<c.length;++f){for(var m=f*u,g=d[m],x=0;x<u;++x){var E=d[m+x];E<g&&(g=E)}c[f]=g}return s},n.prototype.minimum=function(e,t){return ge([e,t],"minimum"),this.broadcastedBinaryOp(e,t,e.dtype,function(a,o){return Math.min(a,o)})},n.prototype.mod=function(e,t){return ge([e,t],"mod"),this.broadcastedBinaryOp(e,t,e.dtype,function(a,o){var i=a%o;return a<0&&o<0||a>=0&&o>=0?i:(i+o)%o})},n.prototype.max=function(e,t){ge(e,"max"),Wn("max",t,e.rank);for(var a=Nn(e.shape,t),o=a[0],i=a[1],s=Jt(o,e.dtype),u=ae(i),c=this.readSync(s.dataId),d=this.readSync(e.dataId),f=0;f<c.length;++f){for(var m=f*u,g=d[m],x=0;x<u;++x){var E=d[m+x];E>g&&(g=E)}c[f]=g}return s},n.prototype.maximum=function(e,t){return ge([e,t],"maximum"),this.broadcastedBinaryOp(e,t,e.dtype,function(a,o){return Math.max(a,o)})},n.prototype.all=function(e,t){ge(e,"all"),Wn("all",t,e.rank);for(var a=Nn(e.shape,t),o=a[0],i=a[1],s=Jt(o,e.dtype),u=ae(i),c=this.readSync(s.dataId),d=this.readSync(e.dataId),f=0;f<c.length;++f){for(var m=f*u,g=d[m],x=0;x<u;++x){var E=d[m+x];g=g&&E}c[f]=g}return s},n.prototype.any=function(e,t){ge(e,"any"),Wn("any",t,e.rank);for(var a=Nn(e.shape,t),o=a[0],i=a[1],s=Jt(o,e.dtype),u=ae(i),c=this.readSync(s.dataId),d=this.readSync(e.dataId),f=0;f<c.length;++f){for(var m=f*u,g=d[m],x=0;x<u;++x){var E=d[m+x];g=g||E}c[f]=g}return s},n.prototype.squaredDifference=function(e,t){return ge([e,t],"squaredDifference"),this.broadcastedBinaryOp(e,t,e.dtype,function(a,o){var i=a-o;return i*i})},n.prototype.ceil=function(e){ge(e,"ceil");for(var t=this.readSync(e.dataId),a=new Float32Array(t.length),o=0;o<t.length;++o)a[o]=Math.ceil(t[o]);return this.makeOutput(a,e.shape,"float32")},n.prototype.floor=function(e){ge(e,"floor");for(var t=this.readSync(e.dataId),a=new Float32Array(t.length),o=0;o<t.length;++o)a[o]=Math.floor(t[o]);return this.makeOutput(a,e.shape,"float32")},n.prototype.sign=function(e){ge(e,"x");for(var t=this.readSync(e.dataId),a=new Float32Array(t.length),o=0;o<t.length;++o)t[o]<0?a[o]=-1:t[o]>0?a[o]=1:a[o]=0;return this.makeOutput(a,e.shape,"float32")},n.prototype.isNaN=function(e){ge(e,"x");for(var t=this.readSync(e.dataId),a=new Uint8Array(t.length),o=0;o<t.length;++o)Number.isNaN(t[o])&&(a[o]=1);return this.makeOutput(a,e.shape,"bool")},n.prototype.isInf=function(e){ge(e,"x");for(var t=this.readSync(e.dataId),a=new Uint8Array(t.length),o=0;o<t.length;++o)Math.abs(t[o])===1/0&&(a[o]=1);return this.makeOutput(a,e.shape,"bool")},n.prototype.isFinite=function(e){ge(e,"x");for(var t=this.readSync(e.dataId),a=new Uint8Array(t.length),o=0;o<t.length;++o)Number.isFinite(t[o])&&(a[o]=1);return this.makeOutput(a,e.shape,"bool")},n.prototype.round=function(e){ge(e,"round");for(var t=this.readSync(e.dataId),a=new Float32Array(t.length),o=0;o<t.length;++o){var i=Math.floor(t[o]);t[o]-i<.5?a[o]=Math.floor(t[o]):t[o]-i>.5?a[o]=Math.ceil(t[o]):a[o]=i%2==0?i:i+1}return this.makeOutput(a,e.shape,"float32")},n.prototype.exp=function(e){ge(e,"exp");for(var t=this.readSync(e.dataId),a=new Float32Array(t.length),o=0;o<t.length;++o)a[o]=Math.exp(t[o]);return this.makeOutput(a,e.shape,"float32")},n.prototype.expm1=function(e){ge(e,"expm1");for(var t=this.readSync(e.dataId),a=new Float32Array(t.length),o=0;o<t.length;++o)a[o]=Math.expm1(t[o]);return this.makeOutput(a,e.shape,"float32")},n.prototype.log=function(e){ge(e,"log");for(var t=this.readSync(e.dataId),a=new Float32Array(t.length),o=0;o<t.length;++o){var i=t[o];a[o]=Math.log(i)}return this.makeOutput(a,e.shape,"float32")},n.prototype.log1p=function(e){ge(e,"log1p");for(var t=this.readSync(e.dataId),a=new Float32Array(t.length),o=0;o<t.length;++o){var i=t[o];a[o]=Math.log1p(i)}return this.makeOutput(a,e.shape,"float32")},n.prototype.sqrt=function(e){ge(e,"sqrt");for(var t=this.readSync(e.dataId),a=new Float32Array(t.length),o=0;o<t.length;++o){var i=t[o];a[o]=Math.sqrt(i)}return this.makeOutput(a,e.shape,"float32")},n.prototype.rsqrt=function(e){ge(e,"rsqrt");for(var t=this.readSync(e.dataId),a=new Float32Array(t.length),o=0;o<t.length;++o){var i=t[o];a[o]=1/Math.sqrt(i)}return this.makeOutput(a,e.shape,"float32")},n.prototype.reciprocal=function(e){ge(e,"reciprocal");for(var t=this.readSync(e.dataId),a=new Float32Array(t.length),o=0;o<t.length;++o)a[o]=1/t[o];return this.makeOutput(a,e.shape,"float32")},n.prototype.linear=function(e){return e},n.prototype.relu=function(e){ge(e,"relu");for(var t=Jt(e.shape,e.dtype),a=this.readSync(t.dataId),o=this.readSync(e.dataId),i=0;i<o.length;++i)a[i]=Math.max(0,o[i]);return t},n.prototype.relu6=function(e){ge(e,"relu");for(var t=Jt(e.shape,e.dtype),a=this.readSync(t.dataId),o=this.readSync(e.dataId),i=0;i<o.length;++i)a[i]=Math.min(Math.max(0,o[i]),6);return t},n.prototype.prelu=function(e,t){return ge([e,t],"prelu"),this.broadcastedBinaryOp(e,t,e.dtype,function(a,o){return a<0?o*a:a})},n.prototype.elu=function(e){ge(e,"elu");for(var t=new Float32Array(e.size),a=this.readSync(e.dataId),o=0;o<a.length;++o){var i=a[o];t[o]=i>=0?i:Math.exp(i)-1}return this.makeOutput(t,e.shape,"float32")},n.prototype.eluDer=function(e,t){ge([e,t],"eluDer");for(var a=new Float32Array(t.size),o=this.readSync(t.dataId),i=this.readSync(e.dataId),s=0;s<o.length;++s){var u=o[s];a[s]=u>=1?i[s]:i[s]*(u+1)}return this.makeOutput(a,t.shape,"float32")},n.prototype.selu=function(e){ge(e,"selu");for(var t=tu,a=nu,o=new Float32Array(e.size),i=this.readSync(e.dataId),s=0;s<i.length;++s){var u=i[s];o[s]=u>=0?a*u:t*(Math.exp(u)-1)}return this.makeOutput(o,e.shape,"float32")},n.prototype.clip=function(e,t,a){ge(e,"clip");for(var o=new Float32Array(e.size),i=this.readSync(e.dataId),s=0;s<i.length;++s){var u=i[s];o[s]=u>a?a:u<t?t:u}return this.makeOutput(o,e.shape,"float32")},n.prototype.abs=function(e){for(var t=new Float32Array(e.size),a=this.readSync(e.dataId),o=0;o<a.length;++o)t[o]=Math.abs(a[o]);return this.makeOutput(t,e.shape,"float32")},n.prototype.complexAbs=function(e){for(var t=new Float32Array(e.size),a=this.readSync(e.dataId),o=0;o<e.size;++o){var i=a[2*o],s=a[2*o+1];t[o]=Math.hypot(i,s)}return this.makeOutput(t,e.shape,"float32")},n.prototype.int=function(e){ge(e,"int");for(var t=new Int32Array(e.size),a=this.readSync(e.dataId),o=0;o<a.length;++o)t[o]=a[o];return this.makeOutput(t,e.shape,"int32")},n.prototype.sigmoid=function(e){ge(e,"sigmoid");for(var t=new Float32Array(e.size),a=this.readSync(e.dataId),o=0;o<a.length;++o)t[o]=1/(1+Math.exp(-a[o]));return this.makeOutput(t,e.shape,"float32")},n.prototype.softplus=function(e){ge(e,"softplus");for(var t=Math.log(11920928955078125e-23)+2,a=new Float32Array(e.size),o=this.readSync(e.dataId),i=0;i<o.length;++i){var s=o[i]>-t,u=o[i]<t,c=Math.exp(o[i]),d=void 0;d=u?c:s?o[i]:Math.log(1+c),a[i]=d}return this.makeOutput(a,e.shape,"float32")},n.prototype.sin=function(e){ge(e,"sin");for(var t=new Float32Array(e.size),a=this.readSync(e.dataId),o=0;o<a.length;++o)t[o]=Math.sin(a[o]);return this.makeOutput(t,e.shape,"float32")},n.prototype.cos=function(e){ge(e,"cos");for(var t=new Float32Array(e.size),a=this.readSync(e.dataId),o=0;o<a.length;++o)t[o]=Math.cos(a[o]);return this.makeOutput(t,e.shape,"float32")},n.prototype.tan=function(e){ge(e,"tan");for(var t=new Float32Array(e.size),a=this.readSync(e.dataId),o=0;o<a.length;++o)t[o]=Math.tan(a[o]);return this.makeOutput(t,e.shape,"float32")},n.prototype.asin=function(e){ge(e,"asin");for(var t=new Float32Array(e.size),a=this.readSync(e.dataId),o=0;o<a.length;++o)t[o]=Math.asin(a[o]);return this.makeOutput(t,e.shape,"float32")},n.prototype.acos=function(e){ge(e,"acos");for(var t=new Float32Array(e.size),a=this.readSync(e.dataId),o=0;o<a.length;++o)t[o]=Math.acos(a[o]);return this.makeOutput(t,e.shape,"float32")},n.prototype.atan=function(e){ge(e,"atan");for(var t=new Float32Array(e.size),a=this.readSync(e.dataId),o=0;o<a.length;++o)t[o]=Math.atan(a[o]);return this.makeOutput(t,e.shape,"float32")},n.prototype.atan2=function(e,t){return ge([e,t],"atan2"),this.broadcastedBinaryOp(e,t,e.dtype,function(a,o){return Math.atan2(a,o)})},n.prototype.sinh=function(e){ge(e,"sinh");for(var t=new Float32Array(e.size),a=this.readSync(e.dataId),o=0;o<a.length;++o)t[o]=Math.sinh(a[o]);return this.makeOutput(t,e.shape,"float32")},n.prototype.cosh=function(e){ge(e,"cosh");for(var t=new Float32Array(e.size),a=this.readSync(e.dataId),o=0;o<a.length;++o)t[o]=Math.cosh(a[o]);return this.makeOutput(t,e.shape,"float32")},n.prototype.tanh=function(e){ge(e,"tanh");for(var t=new Float32Array(e.size),a=this.readSync(e.dataId),o=0;o<a.length;++o)t[o]=Qt(a[o]);return this.makeOutput(t,e.shape,"float32")},n.prototype.asinh=function(e){ge(e,"asinh");for(var t=new Float32Array(e.size),a=this.readSync(e.dataId),o=0;o<a.length;++o)t[o]=Math.asinh(a[o]);return this.makeOutput(t,e.shape,"float32")},n.prototype.acosh=function(e){ge(e,"acosh");for(var t=new Float32Array(e.size),a=this.readSync(e.dataId),o=0;o<a.length;++o)t[o]=Math.acosh(a[o]);return this.makeOutput(t,e.shape,"float32")},n.prototype.atanh=function(e){ge(e,"atanh");for(var t=new Float32Array(e.size),a=this.readSync(e.dataId),o=0;o<a.length;++o)t[o]=Math.atanh(a[o]);return this.makeOutput(t,e.shape,"float32")},n.prototype.erf=function(e){ge(e,"erf");for(var t=new Float32Array(e.size),a=this.readSync(e.dataId),o=0;o<a.length;++o){var i=Math.sign(a[o]),s=Math.abs(a[o]),u=1/(1+.3275911*s);t[o]=i*(1-((((1.061405429*u-1.453152027)*u+1.421413741)*u-.284496736)*u+.254829592)*u*Math.exp(-s*s))}return this.makeOutput(t,e.shape,"float32")},n.prototype.step=function(e,t){t===void 0&&(t=0),ge(e,"step");for(var a=new Float32Array(e.size),o=this.readSync(e.dataId),i=0;i<o.length;++i){var s=o[i];isNaN(s)?a[i]=NaN:a[i]=s>0?1:t}return this.makeOutput(a,e.shape,"float32")},n.prototype.fusedConv2d=function(e){var t=e.input,a=e.filter,o=e.convInfo,i=e.bias,s=e.activation,u=e.preluActivationWeights,c=this.conv2d(t,a,o);return i&&(c=this.add(c,i)),s&&(c=yu(this,c,s,u)),c},n.prototype.conv2d=function(e,t,a){ge([e,t],"conv2d");for(var o=a.filterHeight,i=a.filterWidth,s=a.dilationHeight,u=a.dilationWidth,c=a.padInfo.left,d=a.padInfo.top,f=a.dataFormat==="channelsLast",m=Je(a.outShape,e.dtype),g=e.strides[0],x=f?e.strides[1]:e.strides[2],E=f?e.strides[2]:1,w=f?1:e.strides[1],C=m.strides[0],N=f?m.strides[1]:m.strides[2],S=f?m.strides[2]:1,I=f?1:m.strides[1],M=this.readSync(e.dataId),j=this.readSync(t.dataId),G=m.values,z=0;z<a.batchSize;++z)for(var W=z*g,V=z*C,Z=0;Z<a.outHeight;++Z)for(var J=V+Z*N,me=Z*a.strideHeight-d,fe=0;fe<o;fe++){var he=me+fe*s;if(!(he<0||he>=a.inHeight))for(var Ee=fe*t.strides[0],be=W+he*x,pe=0;pe<a.outWidth;++pe)for(var Ce=J+pe*S,Re=pe*a.strideWidth-c,Le=0;Le<i;Le++){var Xe=Re+Le*u;if(!(Xe<0||Xe>=a.inWidth))for(var qe=be+Xe*E,ht=Ee+Le*t.strides[1],pt=0;pt<a.inChannels;++pt){for(var vt=M[qe+pt*w],Dt=0;Dt<a.outChannels;++Dt)G[Ce+Dt*I]+=vt*j[ht+Dt];ht+=a.outChannels}}}return m.toTensor()},n.prototype.conv3d=function(e,t,a){for(var o=a.filterDepth,i=a.filterHeight,s=a.filterWidth,u=a.dilationDepth,c=a.dilationHeight,d=a.dilationWidth,f=a.padInfo.front,m=a.padInfo.left,g=a.padInfo.top,x=Je(a.outShape,e.dtype),E=this.readSync(e.dataId),w=this.readSync(t.dataId),C=x.values,N=0;N<a.batchSize;++N)for(var S=N*e.strides[0],I=N*x.strides[0],M=0;M<a.outDepth;++M)for(var j=I+M*x.strides[1],G=M*a.strideDepth-f,z=0;z<o;z++){var W=G+z*u;if(!(W<0||W>=a.inDepth))for(var V=z*t.strides[0],Z=S+W*e.strides[1],J=0;J<a.outHeight;++J)for(var me=j+J*x.strides[2],fe=J*a.strideHeight-g,he=0;he<i;he++){var Ee=fe+he*c;if(!(Ee<0||Ee>=a.inHeight))for(var be=V+he*t.strides[1],pe=Z+Ee*e.strides[2],Ce=0;Ce<a.outWidth;++Ce)for(var Re=me+Ce*a.outChannels,Le=Ce*a.strideWidth-m,Xe=0;Xe<s;Xe++){var qe=Le+Xe*d;if(!(qe<0||qe>=a.inWidth))for(var ht=be+Xe*t.strides[2],pt=pe+qe*a.inChannels,vt=ht,Dt=0;Dt<a.inChannels;++Dt){for(var Et=E[pt+Dt],Nt=0;Nt<a.outChannels;++Nt)C[Re+Nt]+=Et*w[vt+Nt];vt+=a.outChannels}}}}return x.toTensor()},n.prototype.conv2dDerInput=function(e,t,a){ge([e,t],"conv2dDerInput");for(var o=Je(a.inShape,"float32"),i=o.values,s=this.readSync(e.dataId),u=this.readSync(t.dataId),c=t.strides,d=c[0],f=c[1],m=c[2],g=a.batchSize,x=a.filterHeight,E=a.filterWidth,w=a.inChannels,C=a.inHeight,N=a.inWidth,S=a.outChannels,I=a.outHeight,M=a.outWidth,j=a.strideHeight,G=a.strideWidth,z=a.dataFormat,W=x-1-a.padInfo.top,V=E-1-a.padInfo.left,Z=z==="channelsLast",J=o.strides[0],me=Z?o.strides[1]:o.strides[2],fe=Z?o.strides[2]:1,he=Z?1:o.strides[1],Ee=e.strides[0],be=Z?e.strides[1]:e.strides[2],pe=Z?e.strides[2]:1,Ce=Z?1:e.strides[1],Re=0;Re<g;++Re)for(var Le=0;Le<w;++Le)for(var Xe=0;Xe<C;++Xe)for(var qe=Xe-W,ht=Math.max(0,Math.ceil(qe/j)),pt=Math.min(I,(x+qe)/j),vt=0;vt<N;++vt){for(var Dt=vt-V,Et=Math.max(0,Math.ceil(Dt/G)),Nt=Math.min(M,(E+Dt)/G),mn=0,_t=ht;_t<pt;++_t)for(var Ht=_t*j-qe,It=Et;It<Nt;++It)for(var hn=Ee*Re+be*_t+pe*It,cn=d*(x-1-Ht)+f*(E-1-(It*G-Dt))+m*Le,ln=0;ln<S;++ln)mn+=s[hn+Ce*ln]*u[cn+ln];i[J*Re+me*Xe+fe*vt+he*Le]=mn}return o.toTensor()},n.prototype.conv3dDerInput=function(e,t,a){for(var o=Je(a.inShape,"float32"),i=o.values,s=o.strides,u=s[0],c=s[1],d=s[2],f=s[3],m=this.readSync(e.dataId),g=e.strides,x=g[0],E=g[1],w=g[2],C=g[3],N=this.readSync(t.dataId),S=t.strides,I=S[0],M=S[1],j=S[2],G=S[3],z=a.batchSize,W=a.filterDepth,V=a.filterHeight,Z=a.filterWidth,J=a.inChannels,me=a.inDepth,fe=a.inHeight,he=a.inWidth,Ee=a.outChannels,be=a.outDepth,pe=a.outHeight,Ce=a.outWidth,Re=a.strideDepth,Le=a.strideHeight,Xe=a.strideWidth,qe=W-1-a.padInfo.front,ht=V-1-a.padInfo.top,pt=Z-1-a.padInfo.left,vt=0;vt<z;++vt)for(var Dt=0;Dt<J;++Dt)for(var Et=0;Et<me;++Et)for(var Nt=Et-qe,mn=Math.max(0,Math.ceil(Nt/Re)),_t=Math.min(be,(W+Nt)/Re),Ht=0;Ht<fe;++Ht)for(var It=Ht-ht,hn=Math.max(0,Math.ceil(It/Le)),cn=Math.min(pe,(V+It)/Le),ln=0;ln<he;++ln){for(var Or=ln-pt,Ir=Math.max(0,Math.ceil(Or/Xe)),er=Math.min(Ce,(Z+Or)/Xe),Ao=0,qr=mn;qr<_t;++qr)for(var xa=qr*Re-Nt,Yr=hn;Yr<cn;++Yr)for(var To=Yr*Le-It,$r=Ir;$r<er;++$r)for(var Fu=x*vt+E*qr+w*Yr+C*$r,Do=I*(W-1-xa)+M*(V-1-To)+j*(Z-1-($r*Xe-Or))+G*Dt,Mr=0;Mr<Ee;++Mr)Ao+=m[Fu+Mr]*N[Do+Mr];i[u*vt+c*Et+d*Ht+f*ln+Dt]=Ao}return o.toTensor()},n.prototype.conv2dDerFilter=function(e,t,a){ge([e,t],"conv2dDerFilter");for(var o=a.strideHeight,i=a.strideWidth,s=a.filterHeight,u=a.filterWidth,c=a.dataFormat==="channelsLast",d=Je(a.filterShape,"float32"),f=a.padInfo.left,m=a.padInfo.top,g=this.bufferSync(e),x=this.bufferSync(t),E=0;E<s;++E)for(var w=Math.max(0,Math.ceil((m-E)/o)),C=Math.min(a.outHeight,(a.inHeight+m-E)/o),N=0;N<u;++N)for(var S=Math.max(0,Math.ceil((f-N)/i)),I=Math.min(a.outWidth,(a.inWidth+f-N)/i),M=0;M<a.inChannels;++M)for(var j=0;j<a.outChannels;++j){for(var G=0,z=0;z<a.batchSize;++z)for(var W=w;W<C;++W)for(var V=E+W*o-m,Z=S;Z<I;++Z){var J=N+Z*i-f;G+=c?g.get(z,V,J,M)*x.get(z,W,Z,j):g.get(z,M,V,J)*x.get(z,j,W,Z)}d.set(G,E,N,M,j)}return d.toTensor()},n.prototype.conv3dDerFilter=function(e,t,a){for(var o=a.strideDepth,i=a.strideHeight,s=a.strideWidth,u=a.filterDepth,c=a.filterHeight,d=a.filterWidth,f=Je(a.filterShape,"float32"),m=f.values,g=f.strides,x=g[0],E=g[1],w=g[2],C=g[3],N=this.readSync(t.dataId),S=t.strides,I=S[0],M=S[1],j=S[2],G=S[3],z=this.readSync(e.dataId),W=e.strides,V=W[0],Z=W[1],J=W[2],me=W[3],fe=a.padInfo.front,he=a.padInfo.left,Ee=a.padInfo.top,be=0;be<u;++be)for(var pe=Math.max(0,Math.ceil((fe-be)/o)),Ce=Math.min(a.outDepth,(a.inDepth+fe-be)/o),Re=be*x,Le=0;Le<c;++Le)for(var Xe=Math.max(0,Math.ceil((Ee-Le)/i)),qe=Math.min(a.outHeight,(a.inHeight+Ee-Le)/i),ht=Le*E+Re,pt=0;pt<d;++pt)for(var vt=Math.max(0,Math.ceil((he-pt)/s)),Dt=Math.min(a.outWidth,(a.inWidth+he-pt)/s),Et=pt*w+ht,Nt=0;Nt<a.inChannels;++Nt)for(var mn=Nt*C+Et,_t=0;_t<a.outChannels;++_t){for(var Ht=0,It=0;It<a.batchSize;++It)for(var hn=It*V,cn=It*I,ln=pe;ln<Ce;++ln)for(var Or=(be+ln*o-fe)*Z+hn,Ir=ln*M+cn,er=Xe;er<qe;++er)for(var Ao=(Le+er*i-Ee)*J+Or,qr=er*j+Ir,xa=vt;xa<Dt;++xa){var Yr=xa*G+qr;Ht+=z[(pt+xa*s-he)*me+Ao+Nt]*N[Yr+_t]}m[mn+_t]=Ht}return f.toTensor()},n.prototype.fusedDepthwiseConv2D=function(e){var t=e.input,a=e.filter,o=e.convInfo,i=e.bias,s=e.activation,u=e.preluActivationWeights,c=this.depthwiseConv2D(t,a,o);return i&&(c=this.add(c,i)),s&&(c=yu(this,c,s,u)),c},n.prototype.depthwiseConv2D=function(e,t,a){ge([e,t],"depthwiseConv2D");for(var o=a.filterHeight,i=a.filterWidth,s=a.dilationHeight,u=a.dilationWidth,c=a.padInfo.left,d=a.padInfo.top,f=a.outChannels/a.inChannels,m=Je(a.outShape,e.dtype),g=this.readSync(e.dataId),x=this.readSync(t.dataId),E=m.values,w=0;w<a.batchSize;++w)for(var C=w*e.strides[0],N=w*m.strides[0],S=0;S<a.outHeight;++S)for(var I=N+S*m.strides[1],M=S*a.strideHeight-c,j=0;j<o;++j){var G=M+j*s;if(!(G<0||G>=a.inHeight))for(var z=j*t.strides[0],W=C+G*e.strides[1],V=0;V<a.outWidth;++V)for(var Z=I+V*m.strides[2],J=V*a.strideWidth-d,me=0;me<i;++me){var fe=J+me*u;if(!(fe<0||fe>=a.inWidth))for(var he=z+me*t.strides[1],Ee=W+fe*a.inChannels,be=Z,pe=he,Ce=0;Ce<a.inChannels;++Ce){for(var Re=g[Ee+Ce],Le=0;Le<f;++Le)E[be+Le]+=Re*x[pe+Le];be+=f,pe+=f}}}return m.toTensor()},n.prototype.depthwiseConv2DDerInput=function(e,t,a){ge([e,t],"depthwiseConv2DDerInput");for(var o=Je(a.inShape,"float32"),i=o.values,s=o.strides,u=s[0],c=s[1],d=s[2],f=this.readSync(e.dataId),m=e.strides,g=m[0],x=m[1],E=m[2],w=this.readSync(t.dataId),C=t.strides,N=C[0],S=C[1],I=C[2],M=a.batchSize,j=a.filterHeight,G=a.filterWidth,z=a.inChannels,W=a.inHeight,V=a.inWidth,Z=a.outChannels,J=a.outHeight,me=a.outWidth,fe=a.strideHeight,he=a.strideWidth,Ee=j-1-a.padInfo.top,be=G-1-a.padInfo.left,pe=Z/z,Ce=0;Ce<M;++Ce)for(var Re=0;Re<z;++Re)for(var Le=0;Le<W;++Le)for(var Xe=Le-Ee,qe=Math.max(0,Math.ceil(Xe/fe)),ht=Math.min(J,(j+Xe)/fe),pt=0;pt<V;++pt){for(var vt=pt-be,Dt=Math.max(0,Math.ceil(vt/he)),Et=Math.min(me,(G+vt)/he),Nt=0,mn=qe;mn<ht;++mn)for(var _t=mn*fe-Xe,Ht=Dt;Ht<Et;++Ht)for(var It=g*Ce+x*mn+E*Ht,hn=N*(j-1-_t)+S*(G-1-(Ht*he-vt))+I*Re,cn=0;cn<pe;++cn)Nt+=f[It+(Re*pe+cn)]*w[hn+cn];i[u*Ce+c*Le+d*pt+Re]=Nt}return o.toTensor()},n.prototype.depthwiseConv2DDerFilter=function(e,t,a){ge([e,t],"depthwiseConv2DDerFilter");for(var o=a.strideHeight,i=a.strideWidth,s=a.filterHeight,u=a.filterWidth,c=Je(a.filterShape,"float32"),d=a.padInfo.left,f=a.padInfo.top,m=a.outChannels/a.inChannels,g=this.bufferSync(e),x=this.bufferSync(t),E=0;E<s;++E)for(var w=Math.max(0,Math.ceil((f-E)/o)),C=Math.min(a.outHeight,(a.inHeight+f-E)/o),N=0;N<u;++N)for(var S=Math.max(0,Math.ceil((d-N)/i)),I=Math.min(a.outWidth,(a.inWidth+d-N)/i),M=0;M<a.outChannels;++M){for(var j=Math.trunc(M/m),G=M%m,z=0,W=0;W<a.batchSize;++W)for(var V=w;V<C;++V)for(var Z=E+V*o-f,J=S;J<I;++J){var me=N+J*i-d;z+=g.get(W,Z,me,j)*x.get(W,V,J,M)}c.set(z,E,N,j,G)}return c.toTensor()},n.prototype.tile=function(e,t){return ge(e,"tile"),qi(this.bufferSync(e),t)},n.prototype.pad=function(e,t,a){ge(e,"pad");var o=t.map(function(m,g){return m[0]+e.shape[g]+m[1]}),i=t.map(function(m){return m[0]}),s=this.bufferSync(e),u=Je(o,e.dtype);a!==0&&u.values.fill(a);for(var c=0;c<e.size;c++){var d=s.indexToLoc(c),f=d.map(function(m,g){return m+i[g]});u.set.apply(u,[s.get.apply(s,d)].concat(f))}return u.toTensor()},n.prototype.transpose=function(e,t){ge(e,"transpose");for(var a=new Array(e.rank),o=0;o<a.length;o++)a[o]=e.shape[t[o]];var i=this.readSync(e.dataId),s=Je(a,e.dtype),u=this.bufferSync(e);for(o=0;o<e.size;++o){for(var c=u.indexToLoc(o),d=new Array(c.length),f=0;f<d.length;f++)d[f]=c[t[f]];var m=s.locToIndex(d);s.values[m]=i[o]}return s.toTensor()},n.prototype.gather=function(e,t,a){ge([e,t],"gather");var o=e.shape.slice(),i=this.readSync(t.dataId);o[a]=i.length;for(var s=Je(o,e.dtype),u=this.bufferSync(e),c=0;c<s.size;++c){var d=s.indexToLoc(c),f=d.slice();f[a]=i[d[a]];var m=u.locToIndex(f);s.values[c]=u.values[m]}return s.toTensor()},n.prototype.batchToSpaceND=function(e,t,a){ge([e],"batchToSpaceND");var o=t.reduce(function(f,m){return f*m}),i=Na(e.shape,t,o),s=xt(i.length,t.length),u=lo(e.shape,t,o),c=Fs(a,t.length),d=Ps(u,a,t.length);return e.reshape(i).transpose(s).reshape(u).slice(c,d)},n.prototype.spaceToBatchND=function(e,t,a){ge([e],"spaceToBatchND");var o=t.reduce(function(m,g){return m*g}),i=[[0,0]];i.push.apply(i,a);for(var s=1+t.length;s<e.shape.length;++s)i.push([0,0]);var u=e.pad(i),c=Na(u.shape,t,o,!1),d=xt(c.length,t.length,!1),f=lo(u.shape,t,o,!1);return u.reshape(c).transpose(d).reshape(f)},n.prototype.pool=function(e,t,a){ge(e,"pool");for(var o=t.strideHeight,i=t.strideWidth,s=t.dilationHeight,u=t.dilationWidth,c=t.effectiveFilterHeight,d=t.effectiveFilterWidth,f=t.padInfo.top,m=t.padInfo.left,g=a==="max"?Number.NEGATIVE_INFINITY:Number.POSITIVE_INFINITY,x=this.readSync(e.dataId),E=Je(t.outShape,e.dtype),w=E.values,C=t.outShape[1]*t.outShape[2]*t.outShape[3],N=t.outShape[2]*t.outShape[3],S=t.outShape[3],I=0;I<t.batchSize;++I)for(var M=I*C,j=I*e.strides[0],G=0;G<t.inChannels;++G)for(var z=0;z<t.outHeight;++z)for(var W=z*o-f,V=Math.max(0,W),Z=Math.min(t.inHeight,c+W),J=M+z*N,me=0;me<t.outWidth;++me){for(var fe=me*i-m,he=Math.max(0,fe),Ee=Math.min(t.inWidth,d+fe),be=g,pe=0,Ce=0,Re=V;Re<Z;Re+=s){for(var Le=j+Re*e.strides[1],Xe=he;Xe<Ee;Xe+=u){var qe=x[Le+Xe*e.strides[2]+G];a==="max"&&qe>be?be=qe:a==="avg"&&(pe+=qe,Ce++)}if(isNaN(be))break}w[J+me*S+G]=a==="avg"?pe/Ce:be}return E.toTensor()},n.prototype.maxPool=function(e,t){return this.pool(e,t,"max")},n.prototype.maxPoolPositions=function(e,t){for(var a=Je(t.outShape,"int32"),o=t.strideHeight,i=t.strideWidth,s=t.dilationHeight,u=t.dilationWidth,c=t.effectiveFilterHeight,d=t.effectiveFilterWidth,f=t.padInfo.top,m=t.padInfo.left,g=this.bufferSync(e),x=0;x<t.batchSize;++x)for(var E=0;E<t.inChannels;++E)for(var w=0;w<t.outHeight;++w){for(var C=w*o-f,N=C;N<0;)N+=s;for(var S=Math.min(t.inHeight,c+C),I=0;I<t.outWidth;++I){for(var M=I*i-m,j=M;j<0;)j+=u;for(var G=Math.min(t.inWidth,d+M),z=Number.NEGATIVE_INFINITY,W=-1,V=N;V<S;V+=s)for(var Z=V-C,J=j;J<G;J+=u){var me=J-M,fe=g.get(x,V,J,E);fe>z&&(z=fe,W=Z*d+me)}a.set(W,x,w,I,E)}}return a.toTensor()},n.prototype.maxPoolBackprop=function(e,t,a,o){ge([t,a],"maxPoolBackprop");for(var i=this.maxPoolPositions(t,o),s=o.strideHeight,u=o.strideWidth,c=o.dilationHeight,d=o.dilationWidth,f=o.effectiveFilterHeight,m=o.effectiveFilterWidth,g=m-1-o.padInfo.left,x=f-1-o.padInfo.top,E=Je(t.shape,"float32"),w=this.bufferSync(i),C=this.bufferSync(e),N=0;N<o.batchSize;++N)for(var S=0;S<o.inChannels;++S)for(var I=0;I<o.inHeight;++I)for(var M=0;M<o.inWidth;++M){for(var j=I-x,G=M-g,z=0,W=0;W<f;W+=c){var V=(j+W)/s;if(!(V<0||V>=o.outHeight||Math.floor(V)!==V))for(var Z=0;Z<m;Z+=d){var J=(G+Z)/u;if(!(J<0||J>=o.outWidth||Math.floor(J)!==J)){var me=f*m-1-w.get(N,V,J,S)===W*m+Z?1:0;me!==0&&(z+=C.get(N,V,J,S)*me)}}}E.set(z,N,I,M,S)}return E.toTensor()},n.prototype.avgPoolBackprop=function(e,t,a){ge([e,t],"avgPoolBackprop");for(var o=a.strideHeight,i=a.strideWidth,s=a.filterHeight,u=a.filterWidth,c=a.dilationHeight,d=a.dilationWidth,f=a.effectiveFilterHeight,m=a.effectiveFilterWidth,g=m-1-a.padInfo.left,x=f-1-a.padInfo.top,E=Je(t.shape,"float32"),w=1/(s*u),C=this.bufferSync(e),N=0;N<a.batchSize;++N)for(var S=0;S<a.inChannels;++S)for(var I=0;I<a.inHeight;++I)for(var M=0;M<a.inWidth;++M){for(var j=I-x,G=M-g,z=0,W=0;W<f;W+=c){var V=(j+W)/o;if(!(V<0||V>=a.outHeight||Math.floor(V)!==V))for(var Z=0;Z<m;Z+=d){var J=(G+Z)/i;J<0||J>=a.outWidth||Math.floor(J)!==J||(z+=C.get(N,V,J,S))}}E.set(z*w,N,I,M,S)}return E.toTensor()},n.prototype.pool3d=function(e,t,a){ge(e,"pool3d");for(var o=t.strideDepth,i=t.strideHeight,s=t.strideWidth,u=t.dilationDepth,c=t.dilationHeight,d=t.dilationWidth,f=t.effectiveFilterDepth,m=t.effectiveFilterHeight,g=t.effectiveFilterWidth,x=t.padInfo.front,E=t.padInfo.top,w=t.padInfo.left,C=a==="max"?Number.NEGATIVE_INFINITY:Number.POSITIVE_INFINITY,N=this.readSync(e.dataId),S=Je(t.outShape,e.dtype),I=S.values,M=t.outShape[1]*t.outShape[2]*t.outShape[3]*t.outShape[4],j=t.outShape[2]*t.outShape[3]*t.outShape[4],G=t.outShape[3]*t.outShape[4],z=t.outShape[4],W=0;W<t.batchSize;++W)for(var V=W*M,Z=W*e.strides[0],J=0;J<t.inChannels;++J)for(var me=0;me<t.outDepth;++me){for(var fe=me*o-x,he=fe;he<0;)he+=u;for(var Ee=Math.min(t.inDepth,f+fe),be=V+me*j,pe=0;pe<t.outHeight;++pe){for(var Ce=pe*i-E,Re=Ce;Re<0;)Re+=c;for(var Le=Math.min(t.inHeight,m+Ce),Xe=be+pe*G,qe=0;qe<t.outWidth;++qe){for(var ht=qe*s-w,pt=ht;pt<0;)pt+=d;for(var vt=Math.min(t.inWidth,g+ht),Dt=Xe+qe*z,Et=C,Nt=0,mn=0,_t=he;_t<Ee;_t+=u){for(var Ht=Z+_t*e.strides[1],It=Re;It<Le;It+=c){for(var hn=Ht+It*e.strides[2],cn=pt;cn<vt;cn+=d){var ln=N[hn+cn*e.strides[3]+J];if(a==="max"&&ln>Et?Et=ln:a==="avg"&&(Nt+=ln,mn++),isNaN(Et))break}if(isNaN(Et))break}if(isNaN(Et))break}I[Dt+J]=a==="avg"?Nt/mn:Et}}}return S.toTensor()},n.prototype.avgPool3d=function(e,t){return ge(e,"avgPool3d"),this.pool3d(e,t,"avg").toFloat()},n.prototype.avgPool3dBackprop=function(e,t,a){ge([e,t],"avgPool3dBackprop");for(var o=a.strideDepth,i=a.strideHeight,s=a.strideWidth,u=a.filterDepth,c=a.filterHeight,d=a.filterWidth,f=a.dilationDepth,m=a.dilationHeight,g=a.dilationWidth,x=a.effectiveFilterDepth,E=a.effectiveFilterHeight,w=a.effectiveFilterWidth,C=x-1-a.padInfo.front,N=w-1-a.padInfo.left,S=E-1-a.padInfo.top,I=Je(t.shape,"float32"),M=1/(u*c*d),j=this.bufferSync(e),G=0;G<a.batchSize;++G)for(var z=0;z<a.inChannels;++z)for(var W=0;W<a.inDepth;++W)for(var V=0;V<a.inHeight;++V)for(var Z=0;Z<a.inWidth;++Z){for(var J=W-C,me=V-S,fe=Z-N,he=0,Ee=0;Ee<x;Ee+=f){var be=(J+Ee)/o;if(!(be<0||be>=a.outDepth||Math.floor(be)!==be))for(var pe=0;pe<E;pe+=m){var Ce=(me+pe)/i;if(!(Ce<0||Ce>=a.outHeight||Math.floor(Ce)!==Ce))for(var Re=0;Re<w;Re+=g){var Le=(fe+Re)/s;Le<0||Le>=a.outWidth||Math.floor(Le)!==Le||(he+=j.get(G,be,Ce,Le,z))}}}I.set(he*M,G,W,V,Z,z)}return I.toTensor()},n.prototype.maxPool3d=function(e,t){return ge(e,"maxPool3d"),this.pool3d(e,t,"max").toFloat()},n.prototype.maxPool3dPositions=function(e,t){for(var a=Je(t.outShape,"int32"),o=t.strideDepth,i=t.strideHeight,s=t.strideWidth,u=t.dilationDepth,c=t.dilationHeight,d=t.dilationWidth,f=t.effectiveFilterDepth,m=t.effectiveFilterHeight,g=t.effectiveFilterWidth,x=t.padInfo.front,E=t.padInfo.top,w=t.padInfo.left,C=this.bufferSync(e),N=0;N<t.batchSize;++N)for(var S=0;S<t.inChannels;++S)for(var I=0;I<t.outDepth;++I){for(var M=I*o-x,j=M;j<0;)j+=u;for(var G=Math.min(t.inDepth,f+M),z=0;z<t.outHeight;++z){for(var W=z*i-E,V=W;V<0;)V+=c;for(var Z=Math.min(t.inHeight,m+W),J=0;J<t.outWidth;++J){for(var me=J*s-w,fe=me;fe<0;)fe+=d;for(var he=Math.min(t.inWidth,g+me),Ee=Number.NEGATIVE_INFINITY,be=-1,pe=j;pe<G;pe+=u)for(var Ce=pe-M,Re=V;Re<Z;Re+=c)for(var Le=Re-W,Xe=fe;Xe<he;Xe+=d){var qe=Xe-me,ht=C.get(N,pe,Re,Xe,S);ht>=Ee&&(Ee=ht,be=Ce*m*g+Le*m+qe)}a.set(be,N,I,z,J,S)}}}return a.toTensor()},n.prototype.maxPool3dBackprop=function(e,t,a,o){ge([t,a],"maxPool3dBackprop");for(var i=this.maxPool3dPositions(t,o),s=o.strideDepth,u=o.strideHeight,c=o.strideWidth,d=o.dilationDepth,f=o.dilationHeight,m=o.dilationWidth,g=o.effectiveFilterDepth,x=o.effectiveFilterHeight,E=o.effectiveFilterWidth,w=g-1-o.padInfo.front,C=E-1-o.padInfo.left,N=x-1-o.padInfo.top,S=Je(t.shape,"float32"),I=this.bufferSync(i),M=this.bufferSync(e),j=0;j<o.batchSize;++j)for(var G=0;G<o.inChannels;++G)for(var z=0;z<o.inDepth;++z)for(var W=0;W<o.inHeight;++W)for(var V=0;V<o.inWidth;++V){for(var Z=z-w,J=W-N,me=V-C,fe=0,he=0;he<g;he+=d){var Ee=(Z+he)/s;if(!(Ee<0||Ee>=o.outDepth||Math.floor(Ee)!==Ee))for(var be=0;be<x;be+=f){var pe=(J+be)/u;if(!(pe<0||pe>=o.outHeight||Math.floor(pe)!==pe))for(var Ce=0;Ce<E;Ce+=m){var Re=(me+Ce)/c;if(!(Re<0||Re>=o.outWidth||Math.floor(Re)!==Re)){var Le=g*x*E-1-I.get(j,Ee,pe,Re,G)===he*x*E+be*E+Ce?1:0;Le!==0&&(fe+=M.get(j,Ee,pe,Re,G)*Le)}}}}S.set(fe,j,z,W,V,G)}return S.toTensor()},n.prototype.cast=function(e,t){return ri(e,t,this)},n.prototype.reshape=function(e,t){return go(e,t)},n.prototype.avgPool=function(e,t){return ge(e,"avgPool"),this.pool(e,t,"avg").toFloat()},n.prototype.resizeBilinear=function(e,t,a,o){ge(e,"resizeBilinear");for(var i=e.shape,s=i[0],u=i[1],c=i[2],d=i[3],f=this.readSync(e.dataId),m=new Float32Array(ae([s,t,a,d])),g=[o&&t>1?u-1:u,o&&a>1?c-1:c],x=[o&&t>1?t-1:t,o&&a>1?a-1:a],E=0,w=g[0]/x[0],C=g[1]/x[1],N=0;N<s;N++)for(var S=0;S<t;S++)for(var I=w*S,M=Math.floor(I),j=I-M,G=Math.min(u-1,Math.ceil(I)),z=N*e.strides[0]+M*e.strides[1],W=N*e.strides[0]+G*e.strides[1],V=0;V<a;V++)for(var Z=C*V,J=Math.floor(Z),me=Z-J,fe=Math.min(c-1,Math.ceil(Z)),he=z+J*e.strides[2],Ee=W+J*e.strides[2],be=z+fe*e.strides[2],pe=W+fe*e.strides[2],Ce=0;Ce<d;Ce++){var Re=f[he+Ce],Le=f[Ee+Ce],Xe=Re+(f[be+Ce]-Re)*me,qe=Xe+(Le+(f[pe+Ce]-Le)*me-Xe)*j;m[E++]=qe}return _n(m,[s,t,a,d])},n.prototype.resizeBilinearBackprop=function(e,t,a){ge([e,t],"resizeBilinearBackprop");for(var o=t.shape,i=o[0],s=o[1],u=o[2],c=o[3],d=e.shape,f=d[1],m=d[2],g=new Float32Array(i*s*u*c),x=[a&&f>1?s-1:s,a&&m>1?u-1:u],E=[a&&f>1?f-1:f,a&&m>1?m-1:m],w=x[0]/E[0],C=x[1]/E[1],N=this.readSync(e.dataId),S=0,I=0;I<i;I++)for(var M=I*t.strides[0],j=0;j<f;j++)for(var G=j*w,z=Math.floor(G),W=Math.min(Math.ceil(G),s-1),V=M+z*t.strides[1],Z=M+W*t.strides[1],J=G-z,me=1-J,fe=0;fe<m;fe++)for(var he=fe*C,Ee=Math.floor(he),be=Math.min(Math.ceil(he),u-1),pe=he-Ee,Ce=1-pe,Re=V+Ee*t.strides[2],Le=V+be*t.strides[2],Xe=Z+Ee*t.strides[2],qe=Z+be*t.strides[2],ht=me*Ce,pt=me*pe,vt=J*Ce,Dt=J*pe,Et=0;Et<c;Et++){var Nt=N[S++];g[Re+Et]+=Nt*ht,g[Le+Et]+=Nt*pt,g[Xe+Et]+=Nt*vt,g[qe+Et]+=Nt*Dt}return Er(g,[i,u,s,c],t.dtype)},n.prototype.resizeNearestNeighbor=function(e,t,a,o){ge(e,"resizeNearestNeighbor");for(var i=e.shape,s=i[0],u=i[1],c=i[2],d=i[3],f=this.readSync(e.dataId),m=new Float32Array(s*t*a*d),g=[o&&t>1?u-1:u,o&&a>1?c-1:c],x=[o&&t>1?t-1:t,o&&a>1?a-1:a],E=g[0]/x[0],w=g[1]/x[1],C=0,N=0;N<s;N++)for(var S=N*e.strides[0],I=0;I<t;I++)for(var M=E*I,j=S+Math.min(u-1,o?Math.round(M):Math.floor(M))*e.strides[1],G=0;G<a;G++)for(var z=w*G,W=j+Math.min(c-1,o?Math.round(z):Math.floor(z))*e.strides[2],V=0;V<d;V++){var Z=f[W+V];m[C++]=Z}return _n(m,[s,t,a,d],e.dtype)},n.prototype.resizeNearestNeighborBackprop=function(e,t,a){ge([e,t],"resizeNearestNeighborBackprop");for(var o=t.shape,i=o[0],s=o[1],u=o[2],c=o[3],d=e.shape,f=d[1],m=d[2],g=new Float32Array(i*s*u*c),x=this.readSync(e.dataId),E=[a&&f>1?s-1:s,a&&m>1?u-1:u],w=[a&&f>1?f-1:f,a&&m>1?m-1:m],C=E[0]/w[0],N=E[1]/w[1],S=1/C,I=1/N,M=2*Math.ceil(S)+2,j=2*Math.ceil(I)+2,G=0;G<i;G++)for(var z=G*t.strides[0],W=0;W<s;W++)for(var V=z+W*t.strides[1],Z=Math.floor(W*S),J=Math.floor(Z-M/2),me=0;me<u;me++)for(var fe=V+me*t.strides[2],he=Math.floor(me*I),Ee=Math.floor(he-j/2),be=0;be<c;be++){for(var pe=0,Ce=0;Ce<M;Ce++){var Re=Ce+J;if(!(Re<0||Re>=f)){var Le=z+Re*e.strides[1],Xe=Re*C;if(W===Math.min(s-1,a?Math.round(Xe):Math.floor(Xe)))for(var qe=0;qe<j;qe++){var ht=qe+Ee;if(!(ht<0||ht>=m)){var pt=Le+ht*e.strides[2],vt=ht*N;me===Math.min(u-1,a?Math.round(vt):Math.floor(vt))&&(pe+=x[pt+be])}}}}g[fe+be]=pe}return Er(g,t.shape,t.dtype)},n.prototype.batchNormalization=function(e,t,a,o,i,s){ge([e,t,a,i,s],"batchNorm");for(var u=this.readSync(e.dataId),c=this.readSync(t.dataId),d=this.readSync(a.dataId),f=i?this.readSync(i.dataId):new Float32Array([1]),m=s?this.readSync(s.dataId):new Float32Array([0]),g=new Float32Array(u.length),x=m.length,E=f.length,w=d.length,C=c.length,N=0,S=0,I=0,M=0,j=0;j<u.length;++j)g[j]=m[N++]+(u[j]-c[S++])*f[I++]/Math.sqrt(d[M++]+o),N>=x&&(N=0),S>=C&&(S=0),I>=E&&(I=0),M>=w&&(M=0);return Er(g,e.shape)},n.prototype.localResponseNormalization4D=function(e,t,a,o,i){ge(e,"localResponseNormalization4D");var s=e.shape[3],u=s-1,c=this.readSync(e.dataId),d=e.size,f=new Float32Array(d);function m(w){for(var C=w%s,N=w-C+Math.max(0,C-t),S=w-C+Math.min(C+t,u),I=0;N<=S;N++){var M=c[N];I+=M*M}return I}for(var g=0;g<d;g++){var x=m(g),E=c[g]*Math.pow(a+o*x,-i);f[g]=E}return Er(f,e.shape)},n.prototype.LRNGrad=function(e,t,a,o,i,s,u){ge(e,"LRNGrad");for(var c=e.shape[3],d=this.readSync(e.dataId),f=this.readSync(t.dataId),m=this.readSync(a.dataId),g=new Float32Array(e.size),x=e.size,E=0;E<x;E++){for(var w=E%c,C=E-w+Math.max(0,w-o),N=E-w+Math.min(c,w+o+1),S=0,I=C;I<N;I++)S+=Math.pow(f[I],2);for(S=s*S+i,I=C;I<N;I++){var M=-2*s*u*f[I]*m[E]/S;E===I&&(M+=Math.pow(S,-u)),M*=d[E],g[I]+=M}}return Er(g,e.shape)},n.prototype.multinomial=function(e,t,a,o){ge(e,"multinomial");for(var i=t?e:Sa(e),s=i.shape[0],u=i.shape[1],c=Jt([s,a],"int32"),d=this.readSync(c.dataId),f=this.readSync(i.dataId),m=0;m<s;++m){var g=m*u,x=new Float32Array(u-1);x[0]=f[g];for(var E=1;E<x.length;++E)x[E]=x[E-1]+f[g+E];for(var w=Da(o.toString()),C=m*a,N=0;N<a;++N){var S=w();d[C+N]=x.length;for(var I=0;I<x.length;I++)if(S<x[I]){d[C+N]=I;break}}}return c},n.prototype.oneHot=function(e,t,a,o){ge(e,"oneHot");var i=new Float32Array(e.size*t);i.fill(o);for(var s=this.readSync(e.dataId),u=0;u<e.size;++u)s[u]>=0&&s[u]<t&&(i[u*t+s[u]]=a);return Wr(i,[e.size,t],"int32")},n.prototype.nonMaxSuppression=function(e,t,a,o,i){return ge(e,"nonMaxSuppression"),ai(this.readSync(e.dataId),this.readSync(t.dataId),a,o,i)},n.prototype.fft=function(e){return this.fftBatch(e,!1)},n.prototype.ifft=function(e){return this.fftBatch(e,!0)},n.prototype.fftBatch=function(e,t){for(var a=e.shape[0],o=e.shape[1],i=Je(e.shape,"float32"),s=Je(e.shape,"float32"),u=Hn(e).as2D(a,o),c=cr(e).as2D(a,o),d=0;d<a;d++)for(var f=u.slice([d,0],[1,o]),m=c.slice([d,0],[1,o]),g=zt(f,m),x=this.readSync(this.fftImpl(g,t).dataId),E=0;E<o;E++){var w=Gi(x,E);i.values[d*o+E]=w.real,s.values[d*o+E]=w.imag}return zt(i.toTensor(),s.toTensor()).as2D(a,o)},n.prototype.fftImpl=function(e,t){var a=e.as1D(),o=a.size;if(this.isExponentOf2(o)){var i=this.fftRadix2(a,o,t).as2D(e.shape[0],e.shape[1]);return t&&(i=zt(Hn(i).div(We(o)),cr(i).div(We(o)))),i}var s=this.readSync(e.dataId),u=function(c){for(var d=new Float32Array(c.length/2),f=new Float32Array(c.length/2),m=0;m<c.length;m+=2)d[m/2]=c[m],f[m/2]=c[m+1];return{real:d,imag:f}}(this.fourierTransformByMatmul(s,o,t));return zt(u.real,u.imag).as2D(e.shape[0],e.shape[1])},n.prototype.isExponentOf2=function(e){return(e&e-1)==0},n.prototype.fftRadix2=function(e,t,a){if(t===1)return e;var o=this.readSync(e.dataId),i=t/2,s=function(C){for(var N=Math.ceil(C.length/4),S=new Float32Array(N),I=new Float32Array(N),M=0;M<C.length;M+=4)S[Math.floor(M/4)]=C[M],I[Math.floor(M/4)]=C[M+1];return{real:S,imag:I}}(o),u=zt(s.real,s.imag).as1D(),c=function(C){for(var N=Math.floor(C.length/4),S=new Float32Array(N),I=new Float32Array(N),M=2;M<C.length;M+=4)S[Math.floor(M/4)]=C[M],I[Math.floor(M/4)]=C[M+1];return{real:S,imag:I}}(o),d=zt(c.real,c.imag).as1D();u=this.fftRadix2(u,i,a),d=this.fftRadix2(d,i,a);var f=function(C,N){for(var S=new Float32Array(C/2),I=new Float32Array(C/2),M=0;M<Math.ceil(C/2);M++){var j=(N?2:-2)*Math.PI*(M/C);S[M]=Math.cos(j),I[M]=Math.sin(j)}return{real:S,imag:I}}(t,a),m=zt(f.real,f.imag).mul(d),g=u.add(m),x=u.sub(m),E=Hn(g).concat(Hn(x)),w=cr(g).concat(cr(x));return zt(E,w).as1D()},n.prototype.fourierTransformByMatmul=function(e,t,a){for(var o=new Float32Array(2*t),i=0;i<t;i++){for(var s=0,u=0,c=0;c<t;c++){var d=Vs(i*c,t,a),f=Gi(e,c);s+=f.real*d.real-f.imag*d.imag,u+=f.real*d.imag+f.imag*d.real}a&&(s/=t,u/=t),zs(o,s,u,i)}return o},n.prototype.depthToSpace=function(e,t,a){D(a==="NHWC",function(){return"Only NHWC dataFormat supported on CPU for depthToSpace. Got "+a}),D(t>1,function(){return"blockSize should be > 1 for depthToSpace, but was: "+t});for(var o=e.shape[0],i=e.shape[1],s=e.shape[2],u=e.shape[3],c=i*t,d=s*t,f=u/(t*t),m=this.readSync(e.dataId),g=new Float32Array(o*c*d*f),x=0,E=0;E<o;++E)for(var w=0;w<c;++w)for(var C=Math.floor(w/t),N=w%t,S=0;S<d;++S)for(var I=Math.floor(S/t),M=(N*t+S%t)*f,j=0;j<f;++j){var G=j+M+u*(I+s*(C+i*E));g[x++]=m[G]}return Er(g,[o,c,d,f])},n.prototype.broadcastedBinaryOp=function(e,t,a,o){var i=nt(e.shape,t.shape),s=Je(i,a),u=this.readSync(e.dataId),c=this.readSync(t.dataId),d=dr(e.shape,i),f=dr(t.shape,i),m=s.values;if(d.length+f.length===0)for(var g=0;g<m.length;++g)m[g]=o(u[g%u.length],c[g%c.length]);else{var x=this.bufferSync(e),E=this.bufferSync(t),w=function(C){var N=s.indexToLoc(C),S=N.slice(-e.rank);d.forEach(function(G){return S[G]=0});var I=x.locToIndex(S),M=N.slice(-t.rank);f.forEach(function(G){return M[G]=0});var j=E.locToIndex(M);m[C]=o(u[I],c[j])};for(g=0;g<m.length;++g)w(g)}return s.toTensor()},n.prototype.broadcastedBinaryComplexOp=function(e,t,a){var o=nt(e.shape,t.shape),i=Je(o,"float32"),s=Je(o,"float32"),u=this.readSync(e.dataId),c=this.readSync(t.dataId),d=dr(e.shape,o),f=dr(t.shape,o),m=i.values,g=s.values;if(d.length+f.length===0)for(var x=0;x<m.length;x++){var E=x%u.length,w=x%c.length,C=a(u[2*E],u[2*E+1],c[2*w],c[2*w+1]);m[x]=C.real,g[x]=C.imag}else{var N=this.bufferSync(this.data.get(e.dataId).complexTensors.real),S=this.bufferSync(this.data.get(t.dataId).complexTensors.real),I=function(M){var j=i.indexToLoc(M),G=j.slice(-e.rank);d.forEach(function(J){return G[J]=0});var z=N.locToIndex(G),W=j.slice(-t.rank);f.forEach(function(J){return W[J]=0});var V=S.locToIndex(W),Z=a(u[2*z],u[2*z+1],c[2*V],c[2*V+1]);m[M]=Z.real,g[M]=Z.imag};for(x=0;x<m.length;x++)I(x)}return this.complex(i.toTensor(),s.toTensor())},n.prototype.split=function(e,t,a){return Ki(e,t,a)},n.prototype.dispose=function(){},n.prototype.floatPrecision=function(){return 32},n.prototype.epsilon=function(){return 1e-7},n.prototype.cropAndResize=function(e,t,a,o,i,s){for(var u=e.shape,c=u[0],d=u[1],f=u[2],m=u[3],g=t.shape[0],x=o[0],E=o[1],w=Je([g,x,E,m],"float32"),C=this.readSync(t.dataId),N=this.readSync(a.dataId),S=this.readSync(e.dataId),I=e.strides,M=w.strides,j=0;j<g;j++){var G=4*j,z=C[G],W=C[G+1],V=C[G+2],Z=C[G+3],J=N[j];if(!(J>=c))for(var me=x>1?(V-z)*(d-1)/(x-1):0,fe=E>1?(Z-W)*(f-1)/(E-1):0,he=0;he<x;he++){var Ee=x>1?z*(d-1)+he*me:.5*(z+V)*(d-1);if(Ee<0||Ee>d-1)for(var be=0;be<E;be++)for(var pe=0;pe<m;pe++){var Ce=pe+be*M[2]+he*M[1]+j*M[0];w.values[Ce]=s}else if(i==="bilinear"){var Re=Math.floor(Ee),Le=Math.ceil(Ee),Xe=Ee-Re;for(be=0;be<E;be++)if((_t=E>1?W*(f-1)+be*fe:.5*(W+Z)*(f-1))<0||_t>f-1)for(pe=0;pe<m;pe++)Ce=pe+be*M[2]+he*M[1]+j*M[0],w.values[Ce]=s;else{var qe=Math.floor(_t),ht=Math.ceil(_t),pt=_t-qe;for(pe=0;pe<m;pe++){var vt=S[Ce=pe+qe*I[2]+Re*I[1]+J*I[0]],Dt=S[Ce=pe+ht*I[2]+Re*I[1]+J*I[0]],Et=S[Ce=pe+qe*I[2]+Le*I[1]+J*I[0]],Nt=vt+(Dt-vt)*pt,mn=Et+(S[Ce=pe+ht*I[2]+Le*I[1]+J*I[0]]-Et)*pt;Ce=pe+be*M[2]+he*M[1]+j*M[0],w.values[Ce]=Nt+(mn-Nt)*Xe}}}else for(be=0;be<E;++be){var _t;if((_t=E>1?W*(f-1)+be*fe:.5*(W+Z)*(f-1))<0||_t>f-1)for(pe=0;pe<m;pe++)Ce=pe+be*M[2]+he*M[1]+j*M[0],w.values[Ce]=s;else{var Ht=Math.round(_t),It=Math.round(Ee);for(pe=0;pe<m;pe++){var hn=pe+Ht*I[2]+It*I[1]+J*I[0],cn=pe+be*M[2]+he*M[1]+j*M[0];w.values[cn]=S[hn]}}}}}return w.toTensor()},n.prototype.sparseToDense=function(e,t,a,o){var i=ka(0,e,a),s=i.sliceRank,u=i.numUpdates,c=i.sliceSize,d=i.strides,f=i.outputSize;return this.scatter(e,t,a,f,c,u,s,d,o,!1)},n.prototype.gatherND=function(e,t){var a=t.shape,o=a[a.length-1],i=Pi(e,t),s=i[0],u=i[1],c=i[2],d=i[3];if(u===0)return _n([],s,e.dtype);for(var f=new za([u,c],e.dtype),m=this.readSync(t.dataId),g=this.readSync(e.dataId),x=0;x<u;x++){for(var E=[],w=0,C=0;C<o;C++){var N=m[x*o+C];w+=N*d[C],E.push(N)}if(w<0||w>=e.size/c)throw new Error("Invalid indices: "+E+" does not index into "+e.shape);for(var S=0;S<c;S++)f.values[x*c+S]=g[w*c+S]}return f.toTensor().reshape(s)},n.prototype.scatterND=function(e,t,a){var o=ka(0,e,a),i=o.sliceRank,s=o.numUpdates,u=o.sliceSize,c=o.strides,d=o.outputSize,f=We(0);return this.scatter(e,t,a,d,u,s,i,c,f,!0)},n.prototype.fill=function(e,t,a){var o=bn(a=a||ar(t),ae(e));return o.fill(t),X.makeTensor(o,e,a,this)},n.prototype.onesLike=function(e){if(e.dtype==="string")throw new Error("onesLike is not supported for string tensors");return this.fill(e.shape,1,e.dtype)},n.prototype.zerosLike=function(e){var t=bn(e.dtype,ae(e.shape));return this.makeOutput(t,e.shape,e.dtype)},n.prototype.linspace=function(e,t,a){return Vi(e,t,a)},n.prototype.scatter=function(e,t,a,o,i,s,u,c,d,f){var m=[o/i,i],g=this.readSync(e.dataId),x=this.readSync(t.dataId);if(o===0)return _n([],a,t.dtype);var E=new za(m,t.dtype);E.values.fill(this.readSync(d.dataId)[0]);for(var w=0;w<s;w++){for(var C=[],N=0,S=0;S<u;S++){var I=g[w*u+S];C.push(I),N+=I*c[S]}if(N<0||N>=o/i)throw new Error("Invalid indices: "+C+" does not index into "+a);for(var M=0;M<i;M++)f?E.values[N*i+M]+=x[w*i+M]:E.values[N*i+M]=t.rank===0?x[0]:x[w*i+M]}return E.toTensor().reshape(a)},n}(fo);X.registerBackend("cpu",function(){return new bf},1);for(var xu=0,Tl=[{kernelName:"NonMaxSuppressionV5",backendName:"cpu",kernelFunc:function(r){var n=r.inputs,e=r.backend,t=r.attrs,a=n,o=a.boxes,i=a.scores,s=t,u=s.maxOutputSize,c=s.iouThreshold,d=s.scoreThreshold,f=s.softNmsSigma,m=e;ge(o,"NonMaxSuppressionWithScore");var g=oi(m.data.get(o.dataId).values,m.data.get(i.dataId).values,u,c,d,f);return[g.selectedIndices,g.selectedScores]}},{kernelName:"Square",backendName:"cpu",kernelFunc:function(r){var n=r.inputs,e=r.backend,t=n.x,a=e;ge(t,"square");for(var o=a.data.get(t.dataId).values,i=new Float32Array(o.length),s=0;s<o.length;++s){var u=o[s];i[s]=u*u}return{dataId:a.write(i,t.shape,t.dtype),shape:t.shape,dtype:t.dtype}}},{kernelName:li,backendName:"cpu",kernelFunc:function(r){var n=r.inputs,e=r.backend,t=n,a=t.a,o=t.b,i=e;ge([a,o],li);var s=i.data.get(a.dataId).values,u=i.data.get(o.dataId).values,c=function(m,g,x,E,w,C){var N=nt(m,g),S=N.length,I=Rn(N),M=Cn(w,ae(N)),j=m.length,G=g.length,z=Rn(m),W=Rn(g),V=dr(m,N),Z=dr(g,N);if(V.length+Z.length===0)for(var J=0;J<M.length;++J)M[J]=C(x[J%x.length],E[J%E.length]);else{var me=function(fe){var he=Ut(fe,S,I),Ee=he.slice(-j);V.forEach(function(Re){return Ee[Re]=0});var be=Rt(Ee,j,z),pe=he.slice(-G);Z.forEach(function(Re){return pe[Re]=0});var Ce=Rt(pe,G,W);M[fe]=C(x[be],E[Ce])};for(J=0;J<M.length;++J)me(J)}return[M,N]}(a.shape,o.shape,s,u,a.dtype,function(m,g){var x=m-g;return x*x}),d=c[0],f=c[1];return{dataId:i.write(d,f,a.dtype),shape:f,dtype:a.dtype}}}];xu<Tl.length;xu++)Ft(Tl[xu]);for(var bo,wf=function(r){this.variableNames=["A"];var n=h(),e=r[0],t=r[1];this.outputShape=r,this.userCode=`
      void main() {
        ivec3 coords = getOutputCoords();
        int texR = coords[0];
        int texC = coords[1];
        int depth = coords[2];
        vec2 uv = (vec2(texC, texR) + halfCR) / vec2(`+t+".0, "+e+`.0);

        vec4 values = `+n.texture2D+`(A, uv);
        float value;
        if (depth == 0) {
          value = values.r;
        } else if (depth == 1) {
          value = values.g;
        } else if (depth == 2) {
          value = values.b;
        } else if (depth == 3) {
          value = values.a;
        }

        setOutput(floor(value * 255.0 + 0.5));
      }
    `},Ef=function(r){this.variableNames=["A"],this.packedInputs=!1,this.packedOutput=!0;var n=h(),e=r[0],t=r[1];this.outputShape=r,this.userCode=`
      void main() {
        ivec3 coords = getOutputCoords();
        int texR = coords[0];
        int texC = coords[1];
        int depth = coords[2];

        vec4 result = vec4(0.);

        for(int row=0; row<=1; row++) {
          for(int col=0; col<=1; col++) {
            texC = coords[1] + row;
            depth = coords[2] + col;

            vec2 uv = (vec2(texC, texR) + halfCR) /
                       vec2(`+t+".0, "+e+`.0);
            vec4 values = `+n.texture2D+`(A, uv);
            float value;
            if (depth == 0) {
              value = values.r;
            } else if (depth == 1) {
              value = values.g;
            } else if (depth == 2) {
              value = values.b;
            } else if (depth == 3) {
              value = values.a;
            }

            result[row * 2 + col] = floor(value * 255.0 + 0.5);
          }
        }

        `+n.output+` = result;
      }
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o=r.call(this)||this;return o.learningRate=e,o.rho=t,o.epsilon=a,o.accumulatedGrads=[],o.accumulatedUpdates=[],a==null&&(o.epsilon=X.backend.epsilon()),o}return Ke(n,r),n.prototype.applyGradients=function(e){var t=this;(Array.isArray(e)?e.map(function(a){return a.name}):Object.keys(e)).forEach(function(a,o){var i=X.registeredVariables[a];t.accumulatedGrads[o]==null&&(t.accumulatedGrads[o]={originalName:a+"/accum_grad",variable:en(function(){return gt(i).variable(!1)})}),t.accumulatedUpdates[o]==null&&(t.accumulatedUpdates[o]={originalName:a+"/accum_var",variable:en(function(){return gt(i).variable(!1)})});var s=Array.isArray(e)?e[o].tensor:e[a];if(s!=null){var u=t.accumulatedGrads[o].variable,c=t.accumulatedUpdates[o].variable;en(function(){var d=u.mul(t.rho).add(s.square().mul(1-t.rho)),f=c.add(t.epsilon).sqrt().div(u.add(t.epsilon).sqrt()).mul(s),m=c.mul(t.rho).add(f.square().mul(1-t.rho));u.assign(d),c.assign(m);var g=f.mul(-t.learningRate).add(i);i.assign(g)})}}),this.incrementIterations()},n.prototype.dispose=function(){this.accumulatedUpdates!=null&&(Pn(this.accumulatedGrads.map(function(e){return e.variable})),Pn(this.accumulatedUpdates.map(function(e){return e.variable})))},n.prototype.getWeights=function(){return ve(this,void 0,void 0,function(){var e;return ye(this,function(t){switch(t.label){case 0:return e=this.accumulatedGrads.concat(this.accumulatedUpdates),[4,this.saveIterations()];case 1:return[2,[t.sent()].concat(e.map(function(a){return{name:a.originalName,tensor:a.variable}}))]}})})},n.prototype.setWeights=function(e){return ve(this,void 0,void 0,function(){var t;return ye(this,function(a){switch(a.label){case 0:return[4,this.extractIterations(e)];case 1:return e=a.sent(),t=e.length/2,this.accumulatedGrads=e.slice(0,t).map(function(o){return{originalName:o.name,variable:o.tensor.variable(!1)}}),this.accumulatedUpdates=e.slice(t,2*t).map(function(o){return{originalName:o.name,variable:o.tensor.variable(!1)}}),[2]}})})},n.prototype.getConfig=function(){return{learningRate:this.learningRate,rho:this.rho,epsilon:this.epsilon}},n.fromConfig=function(e,t){return new e(t.learningRate,t.rho,t.epsilon)},n.className="Adadelta",n}(Ua);ya(ql);var Yl=function(r){function n(e,t){t===void 0&&(t=.1);var a=r.call(this)||this;return a.learningRate=e,a.initialAccumulatorValue=t,a.accumulatedGrads=[],a}return Ke(n,r),n.prototype.applyGradients=function(e){var t=this;(Array.isArray(e)?e.map(function(a){return a.name}):Object.keys(e)).forEach(function(a,o){var i=X.registeredVariables[a];t.accumulatedGrads[o]==null&&(t.accumulatedGrads[o]={originalName:a+"/accumulator",variable:en(function(){return qo(i.shape,t.initialAccumulatorValue).variable(!1)})});var s=Array.isArray(e)?e[o].tensor:e[a];if(s!=null){var u=t.accumulatedGrads[o].variable;en(function(){var c=u.add(s.square());u.assign(c);var d=s.div(c.add(X.backend.epsilon()).sqrt()).mul(-t.learningRate).add(i);i.assign(d)})}}),this.incrementIterations()},n.prototype.dispose=function(){this.accumulatedGrads!=null&&Pn(this.accumulatedGrads.map(function(e){return e.variable}))},n.prototype.getWeights=function(){return ve(this,void 0,void 0,function(){return ye(this,function(e){switch(e.label){case 0:return[4,this.saveIterations()];case 1:return[2,[e.sent()].concat(this.accumulatedGrads.map(function(t){return{name:t.originalName,tensor:t.variable}}))]}})})},n.prototype.setWeights=function(e){return ve(this,void 0,void 0,function(){return ye(this,function(t){switch(t.label){case 0:return[4,this.extractIterations(e)];case 1:return 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c=X.registeredVariables[s];t.accumulatedFirstMoment[u]==null&&(t.accumulatedFirstMoment[u]={originalName:s+"/m",variable:en(function(){return gt(c).variable(!1)})}),t.accumulatedSecondMoment[u]==null&&(t.accumulatedSecondMoment[u]={originalName:s+"/v",variable:en(function(){return gt(c).variable(!1)})});var d=Array.isArray(e)?e[u].tensor:e[s];if(d!=null){var f=t.accumulatedFirstMoment[u].variable,m=t.accumulatedSecondMoment[u].variable,g=f.mul(t.beta1).add(d.mul(1-t.beta1)),x=m.mul(t.beta2).add(d.square().mul(1-t.beta2)),E=g.div(o),w=x.div(i);f.assign(g),m.assign(x);var C=E.div(w.sqrt().add(t.epsilon)).mul(-t.learningRate).add(c);c.assign(C)}}),t.accBeta1.assign(t.accBeta1.mul(t.beta1)),t.accBeta2.assign(t.accBeta2.mul(t.beta2))}),this.incrementIterations()},n.prototype.dispose=function(){this.accBeta1.dispose(),this.accBeta2.dispose(),this.accumulatedFirstMoment!=null&&Pn(this.accumulatedFirstMoment.map(function(e){return e.variable})),this.accumulatedSecondMoment!=null&&Pn(this.accumulatedSecondMoment.map(function(e){return e.variable}))},n.prototype.getWeights=function(){return ve(this,void 0,void 0,function(){var e;return ye(this,function(t){switch(t.label){case 0:return e=this.accumulatedFirstMoment.concat(this.accumulatedSecondMoment),[4,this.saveIterations()];case 1:return[2,[t.sent()].concat(e.map(function(a){return{name:a.originalName,tensor:a.variable}}))]}})})},n.prototype.setWeights=function(e){return ve(this,void 0,void 0,function(){var t,a=this;return ye(this,function(o){switch(o.label){case 0:return[4,this.extractIterations(e)];case 1:return e=o.sent(),en(function(){a.accBeta1.assign(as(a.beta1,a.iterations_+1)),a.accBeta2.assign(as(a.beta2,a.iterations_+1))}),t=e.length/2,this.accumulatedFirstMoment=e.slice(0,t).map(function(i){return{originalName:i.name,variable:i.tensor.variable(!1)}}),this.accumulatedSecondMoment=e.slice(t,2*t).map(function(i){return{originalName:i.name,variable:i.tensor.variable(!1)}}),[2]}})})},n.prototype.getConfig=function(){return{learningRate:this.learningRate,beta1:this.beta1,beta2:this.beta2,epsilon:this.epsilon}},n.fromConfig=function(e,t){return new e(t.learningRate,t.beta1,t.beta2,t.epsilon)},n.className="Adam",n}(Ua);ya($l);var Jl=function(r){function n(e,t,a,o,i){o===void 0&&(o=null),i===void 0&&(i=0);var s=r.call(this)||this;return s.learningRate=e,s.beta1=t,s.beta2=a,s.epsilon=o,s.decay=i,s.accumulatedFirstMoment=[],s.accumulatedWeightedInfNorm=[],en(function(){s.iteration=We(0).variable(),s.accBeta1=We(t).variable()}),o==null&&(s.epsilon=X.backend.epsilon()),s}return Ke(n,r),n.prototype.applyGradients=function(e){var t=this,a=Array.isArray(e)?e.map(function(o){return o.name}):Object.keys(e);en(function(){var o=va(1,t.accBeta1),i=rs(-t.learningRate,t.iteration.mul(t.decay).add(1));a.forEach(function(s,u){var c=X.registeredVariables[s];t.accumulatedFirstMoment[u]==null&&(t.accumulatedFirstMoment[u]={originalName:s+"/m",variable:gt(c).variable(!1)}),t.accumulatedWeightedInfNorm[u]==null&&(t.accumulatedWeightedInfNorm[u]={originalName:s+"/v",variable:gt(c).variable(!1)});var d=Array.isArray(e)?e[u].tensor:e[s];if(d!=null){var f=t.accumulatedFirstMoment[u].variable,m=t.accumulatedWeightedInfNorm[u].variable,g=f.mul(t.beta1).add(d.mul(1-t.beta1)),x=m.mul(t.beta2),E=d.abs(),w=x.maximum(E);f.assign(g),m.assign(w);var C=i.div(o).mul(g.div(w.add(t.epsilon))).add(c);c.assign(C)}}),t.iteration.assign(t.iteration.add(1)),t.accBeta1.assign(t.accBeta1.mul(t.beta1))}),this.incrementIterations()},n.prototype.dispose=function(){this.accBeta1.dispose(),this.iteration.dispose(),this.accumulatedFirstMoment!=null&&Pn(this.accumulatedFirstMoment.map(function(e){return e.variable})),this.accumulatedWeightedInfNorm!=null&&Pn(this.accumulatedWeightedInfNorm.map(function(e){return e.variable}))},n.prototype.getWeights=function(){return ve(this,void 0,void 0,function(){return ye(this,function(e){throw new Error("getWeights() is not implemented for Adamax yet.")})})},n.prototype.setWeights=function(e){return ve(this,void 0,void 0,function(){return ye(this,function(t){throw new Error("setWeights() is not implemented for Adamax yet.")})})},n.prototype.getConfig=function(){return{learningRate:this.learningRate,beta1:this.beta1,beta2:this.beta2,epsilon:this.epsilon,decay:this.decay}},n.fromConfig=function(e,t){return new e(t.learningRate,t.beta1,t.beta2,t.epsilon,t.decay)},n.className="Adamax",n}(Ua);ya(Jl);var Mu=function(r){function n(e){var t=r.call(this)||this;return t.learningRate=e,t.setLearningRate(e),t}return Ke(n,r),n.prototype.applyGradients=function(e){var t=this;(Array.isArray(e)?e.map(function(a){return a.name}):Object.keys(e)).forEach(function(a,o){var i=Array.isArray(e)?e[o].tensor:e[a];if(i!=null){var s=X.registeredVariables[a];en(function(){var u=t.c.mul(i).add(s);s.assign(u)})}}),this.incrementIterations()},n.prototype.setLearningRate=function(e){this.learningRate=e,this.c!=null&&this.c.dispose(),this.c=vs(We(-e))},n.prototype.dispose=function(){this.c.dispose()},n.prototype.getWeights=function(){return ve(this,void 0,void 0,function(){return ye(this,function(e){switch(e.label){case 0:return[4,this.saveIterations()];case 1:return[2,[e.sent()]]}})})},n.prototype.setWeights=function(e){return ve(this,void 0,void 0,function(){return ye(this,function(t){switch(t.label){case 0:return[4,this.extractIterations(e)];case 1:if((e=t.sent()).length!==0)throw new Error("SGD optimizer does not have settable weights.");return[2]}})})},n.prototype.getConfig=function(){return{learningRate:this.learningRate}},n.fromConfig=function(e,t){return new e(t.learningRate)},n.className="SGD",n}(Ua);ya(Mu);var Ql=function(r){function n(e,t,a){a===void 0&&(a=!1);var o=r.call(this,e)||this;return o.learningRate=e,o.momentum=t,o.useNesterov=a,o.accumulations=[],o.m=We(o.momentum),o}return Ke(n,r),n.prototype.applyGradients=function(e){var t=this;(Array.isArray(e)?e.map(function(a){return a.name}):Object.keys(e)).forEach(function(a,o){var i=X.registeredVariables[a];t.accumulations[o]==null&&(t.accumulations[o]={originalName:a+"/momentum",variable:en(function(){return gt(i).variable(!1)})});var s=t.accumulations[o].variable,u=Array.isArray(e)?e[o].tensor:e[a];u!=null&&en(function(){var c,d=t.m.mul(s).add(u);c=t.useNesterov?t.c.mul(u.add(d.mul(t.m))).add(i):t.c.mul(d).add(i),s.assign(d),i.assign(c)})}),this.incrementIterations()},n.prototype.dispose=function(){this.m.dispose(),this.accumulations!=null&&Pn(this.accumulations.map(function(e){return e.variable}))},n.prototype.setMomentum=function(e){this.momentum=e},n.prototype.getWeights=function(){return ve(this,void 0,void 0,function(){return ye(this,function(e){switch(e.label){case 0:return[4,this.saveIterations()];case 1:return[2,[e.sent()].concat(this.accumulations.map(function(t){return{name:t.originalName,tensor:t.variable}}))]}})})},n.prototype.setWeights=function(e){return ve(this,void 0,void 0,function(){return ye(this,function(t){switch(t.label){case 0:return[4,this.extractIterations(e)];case 1:return e=t.sent(),this.accumulations=e.map(function(a){return{originalName:a.name,variable:a.tensor.variable(!1)}}),[2]}})})},n.prototype.getConfig=function(){return{learningRate:this.learningRate,momentum:this.momentum,useNesterov:this.useNesterov}},n.fromConfig=function(e,t){return new e(t.learningRate,t.momentum,t.useNesterov)},n.className="Momentum",n}(Mu);ya(Ql);var Zl=function(r){function n(e,t,a,o,i){t===void 0&&(t=.9),a===void 0&&(a=0),o===void 0&&(o=null),i===void 0&&(i=!1);var s=r.call(this)||this;if(s.learningRate=e,s.decay=t,s.momentum=a,s.epsilon=o,s.accumulatedMeanSquares=[],s.accumulatedMoments=[],s.accumulatedMeanGrads=[],s.centered=i,o==null&&(s.epsilon=X.backend.epsilon()),e==null)throw new Error("learningRate for RMSPropOptimizer must be defined.");return s}return Ke(n,r),n.prototype.applyGradients=function(e){var t=this;(Array.isArray(e)?e.map(function(a){return a.name}):Object.keys(e)).forEach(function(a,o){var i=X.registeredVariables[a];t.accumulatedMeanSquares[o]==null&&(t.accumulatedMeanSquares[o]={originalName:a+"/rms",variable:en(function(){return gt(i).variable(!1)})}),t.accumulatedMoments[o]==null&&(t.accumulatedMoments[o]={originalName:a+"/momentum",variable:en(function(){return gt(i).variable(!1)})}),t.accumulatedMeanGrads[o]==null&&t.centered&&(t.accumulatedMeanGrads[o]={originalName:a+"/mg",variable:en(function(){return gt(i).variable(!1)})});var s=Array.isArray(e)?e[o].tensor:e[a];if(s!=null){var u=t.accumulatedMeanSquares[o].variable,c=t.accumulatedMoments[o].variable;en(function(){var d=u.mul(t.decay).add(s.square().mul(1-t.decay));if(t.centered){var f=t.accumulatedMeanGrads[o].variable,m=f.mul(t.decay).add(s.mul(1-t.decay)),g=c.mul(t.momentum).add(s.mul(t.learningRate).div(d.sub(m.square().add(t.epsilon)).sqrt()));u.assign(d),f.assign(m),c.assign(g);var x=i.sub(g);i.assign(x)}else{var E=u.mul(t.decay).add(s.square().mul(1-t.decay));g=c.mul(t.momentum).add(s.mul(t.learningRate).div(E.add(t.epsilon).sqrt())),u.assign(E),c.assign(g),x=i.sub(g),i.assign(x)}})}}),this.incrementIterations()},n.prototype.dispose=function(){this.accumulatedMeanSquares!=null&&Pn(this.accumulatedMeanSquares.map(function(e){return e.variable})),this.accumulatedMeanGrads!=null&&this.centered&&Pn(this.accumulatedMeanGrads.map(function(e){return e.variable})),this.accumulatedMoments!=null&&Pn(this.accumulatedMoments.map(function(e){return e.variable}))},n.prototype.getWeights=function(){return ve(this,void 0,void 0,function(){var e;return ye(this,function(t){switch(t.label){case 0:return e=this.accumulatedMeanSquares.concat(this.accumulatedMoments),this.centered&&e.push.apply(e,this.accumulatedMeanGrads),[4,this.saveIterations()];case 1:return[2,[t.sent()].concat(e.map(function(a){return{name:a.originalName,tensor:a.variable}}))]}})})},n.prototype.setWeights=function(e){return ve(this,void 0,void 0,function(){var t;return ye(this,function(a){switch(a.label){case 0:return[4,this.extractIterations(e)];case 1:return e=a.sent(),t=this.centered?e.length/3:e.length/2,this.accumulatedMeanSquares=e.slice(0,t).map(function(o){return{originalName:o.name,variable:o.tensor.variable(!1)}}),this.accumulatedMoments=e.slice(t,2*t).map(function(o){return{originalName:o.name,variable:o.tensor.variable(!1)}}),this.centered&&(this.accumulatedMeanGrads=e.slice(2*t,3*t).map(function(o){return{originalName:o.name,variable:o.tensor.variable(!1)}})),[2]}})})},n.prototype.getConfig=function(){return{learningRate:this.learningRate,decay:this.decay,momentum:this.momentum,epsilon:this.epsilon,centered:this.centered}},n.fromConfig=function(e,t){return new e(t.learningRate,t.decay,t.momentum,t.epsilon,t.centered)},n.className="RMSProp",n}(Ua);ya(Zl);var Wa=function(){function r(){}return r.sgd=function(n){return new Mu(n)},r.momentum=function(n,e,t){return t===void 0&&(t=!1),new 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this.faceFeatureExtractor.loadFromWeightMap(y),mr(b)},l.prototype.extractParams=function(h){var v=this.getClassifierChannelsIn(),y=this.getClassifierChannelsOut(),b=y*v+y,T=h.slice(0,h.length-b),A=h.slice(h.length-b);return this.faceFeatureExtractor.extractWeights(T),this.extractClassifierParams(A)},l}(ir),ta=["neutral","happy","sad","angry","fearful","disgusted","surprised"],na=function(){function p(l){var h=this;if(l.length!==7)throw new Error("FaceExpressions.constructor - expected probabilities.length to be 7, have: "+l.length);ta.forEach(function(v,y){h[v]=l[y]})}return p.prototype.asSortedArray=function(){var l=this;return ta.map(function(h){return{expression:h,probability:l[h]}}).sort(function(h,v){return v.probability-h.probability})},p}(),xi=function(p){Object(q.c)(l,p);function l(h){return h===void 0&&(h=new $a),p.call(this,"FaceExpressionNet",h)||this}return l.prototype.forwardInput=function(h){var v=this;return k.L(function(){return 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256},l.prototype.getClassifierChannelsOut=function(){return 7},l}(ea);function Ja(p){return p.expressions instanceof na}function ra(p,l){var h={expressions:l};return Object.assign({},p,h)}function bi(p,l,h,v){h===void 0&&(h=.1);var y=Array.isArray(l)?l:[l];y.forEach(function(b){var T=b instanceof na?b:Ja(b)?b.expressions:void 0;if(!T)throw new Error("drawFaceExpressions - expected faceExpressions to be FaceExpressions | WithFaceExpressions<{}> or array thereof");var A=T.asSortedArray(),O=A.filter(function(H){return H.probability>h}),P=In(b)?b.detection.box.bottomLeft:v||new et(0,0),B=new vi(O.map(function(H){return H.expression+" ("+Xt(H.probability)+")"}),P);B.draw(p)})}function Qa(p){return In(p)&&p.landmarks instanceof Un&&p.unshiftedLandmarks instanceof Un&&p.alignedRect instanceof _}function Ra(p,l){var h=p.detection.box,v=l.shiftBy(h.x,h.y),y=v.align(),b=p.detection.imageDims,T=new 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O=v(T,T,A+"/separable_conv0"),P=v(T,T,A+"/separable_conv1"),B=v(T,T,A+"/separable_conv2");return{separable_conv0:O,separable_conv1:P,separable_conv2:B}}return{extractConvParams:h,extractSeparableConvParams:v,extractReductionBlockParams:y,extractMainBlockParams:b}}function Ho(p,l){var h=[],v=Yn(p),y=v.extractWeights,b=v.getRemainingWeights,T=Ei(y,h),A=T.extractConvParams,O=T.extractSeparableConvParams,P=T.extractReductionBlockParams,B=T.extractMainBlockParams,H=A(3,32,3,"entry_flow/conv_in"),Y=P(32,64,"entry_flow/reduction_block_0"),Q=P(64,128,"entry_flow/reduction_block_1"),ue={conv_in:H,reduction_block_0:Y,reduction_block_1:Q},le={};$t(l,0,1).forEach(function(Fe){le["main_block_"+Fe]=B(128,"middle_flow/main_block_"+Fe)});var _e=P(128,256,"exit_flow/reduction_block"),De=O(256,512,"exit_flow/separable_conv"),Ue={reduction_block:_e,separable_conv:De};if(b().length!==0)throw new Error("weights remaing after extract: 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Q=T("exit_flow/reduction_block"),ue=b("exit_flow/separable_conv"),le={reduction_block:Q,separable_conv:ue};return sr(p,h),{params:{entry_flow:H,middle_flow:Y,exit_flow:le},paramMappings:h}}function $e(p,l,h){return k.c(k.i(p,l.filters,h,"same"),l.bias)}function Ci(p,l,h){h===void 0&&(h=!0);var v=h?k.w(p):p;return v=Dn(v,l.separable_conv0,[1,1]),v=Dn(k.w(v),l.separable_conv1,[1,1]),v=k.s(v,[3,3],[2,2],"same"),v=k.c(v,$e(p,l.expansion_conv,[2,2])),v}function Wu(p,l){var h=Dn(k.w(p),l.separable_conv0,[1,1]);return h=Dn(k.w(h),l.separable_conv1,[1,1]),h=Dn(k.w(h),l.separable_conv2,[1,1]),h=k.c(h,p),h}var zu=function(p){Object(q.c)(l,p);function l(h){var v=p.call(this,"TinyXception")||this;return v._numMainBlocks=h,v}return l.prototype.forwardInput=function(h){var v=this,y=this.params;if(!y)throw new Error("TinyXception - load model before inference");return k.L(function(){var b=h.toBatchTensor(112,!0),T=[122.782,117.001,104.298],A=de(b,T).div(k.y(256)),O=k.w($e(A,y.entry_flow.conv_in,[2,2]));return O=Ci(O,y.entry_flow.reduction_block_0,!1),O=Ci(O,y.entry_flow.reduction_block_1),$t(v._numMainBlocks,0,1).forEach(function(P){O=Wu(O,y.middle_flow["main_block_"+P])}),O=Ci(O,y.exit_flow.reduction_block),O=k.w(Dn(O,y.exit_flow.separable_conv,[1,1])),O})},l.prototype.forward=function(h){return Object(q.b)(this,void 0,void 0,function(){var v;return Object(q.d)(this,function(y){switch(y.label){case 0:return v=this.forwardInput,[4,Zt(h)];case 1:return[2,v.apply(this,[y.sent()])]}})})},l.prototype.getDefaultModelName=function(){return"tiny_xception_model"},l.prototype.extractParamsFromWeigthMap=function(h){return ps(h,this._numMainBlocks)},l.prototype.extractParams=function(h){return Ho(h,this._numMainBlocks)},l}(ir);function Ri(p){var l=[],h=Yn(p),v=h.extractWeights,y=h.getRemainingWeights,b=Xa(v,l),T=b(512,1,"fc/age"),A=b(512,2,"fc/gender");if(y().length!==0)throw new Error("weights remaing after extract: "+y().length);return{paramMappings:l,params:{fc:{age:T,gender:A}}}}function Vu(p){var l=[],h=vr(p,l);function v(b){var T=h(b+"/weights",2),A=h(b+"/bias",1);return{weights:T,bias:A}}var y={fc:{age:v("fc/age"),gender:v("fc/gender")}};return sr(p,l),{params:y,paramMappings:l}}var Aa;(function(p){p.FEMALE="female",p.MALE="male"})(Aa||(Aa={}));var Gu=function(p){Object(q.c)(l,p);function l(h){h===void 0&&(h=new zu(2));var v=p.call(this,"AgeGenderNet")||this;return v._faceFeatureExtractor=h,v}return Object.defineProperty(l.prototype,"faceFeatureExtractor",{get:function(){return this._faceFeatureExtractor},enumerable:!0,configurable:!0}),l.prototype.runNet=function(h){var v=this,y=this.params;if(!y)throw new Error(this._name+" - load model before inference");return k.L(function(){var b=h instanceof 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0,function(){var ue,le,_e,De,Ue;return Object(q.d)(this,function(Fe){switch(Fe.label){case 0:return[4,Y.data()];case 1:return ue=Fe.sent()[0],[4,Q.data()];case 2:return le=Fe.sent()[0],_e=le>.5,De=_e?Aa.MALE:Aa.FEMALE,Ue=_e?le:1-le,Y.dispose(),Q.dispose(),[2,{age:ue,gender:De,genderProbability:Ue}]}})})}))];case 3:return O=B.sent(),y.age.dispose(),y.gender.dispose(),[2,v.isBatchInput?O:O[0]]}})})},l.prototype.getDefaultModelName=function(){return"age_gender_model"},l.prototype.dispose=function(h){h===void 0&&(h=!0),this.faceFeatureExtractor.dispose(h),p.prototype.dispose.call(this,h)},l.prototype.loadClassifierParams=function(h){var v=this.extractClassifierParams(h),y=v.params,b=v.paramMappings;this._params=y,this._paramMappings=b},l.prototype.extractClassifierParams=function(h){return Ri(h)},l.prototype.extractParamsFromWeigthMap=function(h){var v=Go(h),y=v.featureExtractorMap,b=v.classifierMap;return this.faceFeatureExtractor.loadFromWeightMap(y),Vu(b)},l.prototype.extractParams=function(h){var v=512*1+1+(512*2+2),y=h.slice(0,h.length-v),b=h.slice(h.length-v);return this.faceFeatureExtractor.extractWeights(y),this.extractClassifierParams(b)},l}(ir),fs=function(p){Object(q.c)(l,p);function l(){return p!==null&&p.apply(this,arguments)||this}return l.prototype.postProcess=function(h,v,y){var b=y.map(function(A){var O=A.width,P=A.height,B=v/Math.max(P,O);return{width:O*B,height:P*B}}),T=b.length;return k.L(function(){var A=function(Y,Q){return k.E([k.n([68],Y),k.n([68],Q)],1).as2D(1,136).as1D()},O=function(Y,Q){var ue=b[Y],le=ue.width,_e=ue.height;return Q(le,_e)?Math.abs(le-_e)/2:0},P=function(Y){return O(Y,function(Q,ue){return Q<ue})},B=function(Y){return O(Y,function(Q,ue){return ue<Q})},H=h.mul(k.n([T,136],v)).sub(k.E(Array.from(Array(T),function(Y,Q){return A(P(Q),B(Q))}))).div(k.E(Array.from(Array(T),function(Y,Q){return A(b[Q].width,b[Q].height)})));return H})},l.prototype.forwardInput=function(h){var v=this;return k.L(function(){var y=v.runNet(h);return v.postProcess(y,h.inputSize,h.inputDimensions.map(function(b){var T=b[0],A=b[1];return{height:T,width:A}}))})},l.prototype.forward=function(h){return Object(q.b)(this,void 0,void 0,function(){var v;return Object(q.d)(this,function(y){switch(y.label){case 0:return v=this.forwardInput,[4,Zt(h)];case 1:return[2,v.apply(this,[y.sent()])]}})})},l.prototype.detectLandmarks=function(h){return Object(q.b)(this,void 0,void 0,function(){var v,y,b,T=this;return Object(q.d)(this,function(A){switch(A.label){case 0:return[4,Zt(h)];case 1:return v=A.sent(),y=k.L(function(){return k.O(T.forwardInput(v))}),[4,Promise.all(y.map(function(O,P){return Object(q.b)(T,void 0,void 0,function(){var B,H,Y,Q,ue;return Object(q.d)(this,function(le){switch(le.label){case 0:return Y=(H=Array).from,[4,O.data()];case 1:return B=Y.apply(H,[le.sent()]),Q=B.filter(function(_e,De){return tr(De)}),ue=B.filter(function(_e,De){return!tr(De)}),[2,new fi(Array(68).fill(0).map(function(_e,De){return new et(Q[De],ue[De])}),{height:v.getInputHeight(P),width:v.getInputWidth(P)})]}})})}))];case 2:return b=A.sent(),y.forEach(function(O){return O.dispose()}),[2,v.isBatchInput?b:b[0]]}})})},l.prototype.getClassifierChannelsOut=function(){return 136},l}(ea),en=function(p){Object(q.c)(l,p);function l(h){return h===void 0&&(h=new $a),p.call(this,"FaceLandmark68Net",h)||this}return l.prototype.getDefaultModelName=function(){return"face_landmark_68_model"},l.prototype.getClassifierChannelsIn=function(){return 256},l}(fs);function Pn(p){var l=[],h=Vo(p,l).extractDenseBlock3Params,v={dense0:h("dense0",!0),dense1:h("dense1"),dense2:h("dense2")};return sr(p,l),{params:v,paramMappings:l}}function vs(p){var l=[],h=Yn(p),v=h.extractWeights,y=h.getRemainingWeights,b=Wo(v,l).extractDenseBlock3Params,T=b(3,32,"dense0",!0),A=b(32,64,"dense1"),O=b(64,128,"dense2");if(y().length!==0)throw new Error("weights remaing after extract: "+y().length);return{paramMappings:l,params:{dense0:T,dense1:A,dense2:O}}}var Hu=function(p){Object(q.c)(l,p);function l(){return p.call(this,"TinyFaceFeatureExtractor")||this}return l.prototype.forwardInput=function(h){var v=this.params;if(!v)throw new Error("TinyFaceFeatureExtractor - load model before inference");return k.L(function(){var y=h.toBatchTensor(112,!0),b=[122.782,117.001,104.298],T=de(y,b).div(k.y(255)),A=Zr(T,v.dense0,!0);return A=Zr(A,v.dense1),A=Zr(A,v.dense2),A=k.d(A,[14,14],[2,2],"valid"),A})},l.prototype.forward=function(h){return Object(q.b)(this,void 0,void 0,function(){var v;return Object(q.d)(this,function(y){switch(y.label){case 0:return v=this.forwardInput,[4,Zt(h)];case 1:return[2,v.apply(this,[y.sent()])]}})})},l.prototype.getDefaultModelName=function(){return"face_feature_extractor_tiny_model"},l.prototype.extractParamsFromWeigthMap=function(h){return Pn(h)},l.prototype.extractParams=function(h){return vs(h)},l}(ir),Xu=function(p){Object(q.c)(l,p);function l(h){return h===void 0&&(h=new Hu),p.call(this,"FaceLandmark68TinyNet",h)||this}return l.prototype.getDefaultModelName=function(){return"face_landmark_68_tiny_model"},l.prototype.getClassifierChannelsIn=function(){return 128},l}(fs),ed=function(p){Object(q.c)(l,p);function l(){return p!==null&&p.apply(this,arguments)||this}return l}(en);function Ku(p,l){return k.c(k.t(p,l.weights),l.biases)}function Ai(p,l,h,v,y){y===void 0&&(y="same");var b=l.conv,T=b.filters,A=b.bias,O=k.i(p,T,h,y);return O=k.c(O,A),O=Ku(O,l.scale),v?k.w(O):O}function qu(p,l){return Ai(p,l,[1,1],!0)}function ms(p,l){return Ai(p,l,[1,1],!1)}function gs(p,l){return Ai(p,l,[2,2],!0,"valid")}function Yu(p,l){function h(A,O,P){var B=p(A),H=B.length/(O*P*P);if(xr(H))throw new Error("depth has to be an integer: "+H+", weights.length: "+B.length+", numFilters: "+O+", filterSize: "+P);return k.L(function(){return k.N(k.K(B,[O,H,P,P]),[2,3,1,0])})}function v(A,O,P,B){var H=h(A,O,P),Y=k.H(p(O));return l.push({paramPath:B+"/filters"},{paramPath:B+"/bias"}),{filters:H,bias:Y}}function y(A,O){var P=k.H(p(A)),B=k.H(p(A));return l.push({paramPath:O+"/weights"},{paramPath:O+"/biases"}),{weights:P,biases:B}}function b(A,O,P,B){var H=v(A,O,P,B+"/conv"),Y=y(O,B+"/scale");return{conv:H,scale:Y}}function T(A,O,P,B,H){H===void 0&&(H=!1);var Y=b((H?.5:1)*A,O,P,B+"/conv1"),Q=b(A,O,P,B+"/conv2");return{conv1:Y,conv2:Q}}return{extractConvLayerParams:b,extractResidualLayerParams:T}}function $u(p){var l=Yn(p),h=l.extractWeights,v=l.getRemainingWeights,y=[],b=Yu(h,y),T=b.extractConvLayerParams,A=b.extractResidualLayerParams,O=T(4704,32,7,"conv32_down"),P=A(9216,32,3,"conv32_1"),B=A(9216,32,3,"conv32_2"),H=A(9216,32,3,"conv32_3"),Y=A(36864,64,3,"conv64_down",!0),Q=A(36864,64,3,"conv64_1"),ue=A(36864,64,3,"conv64_2"),le=A(36864,64,3,"conv64_3"),_e=A(147456,128,3,"conv128_down",!0),De=A(147456,128,3,"conv128_1"),Ue=A(147456,128,3,"conv128_2"),Fe=A(589824,256,3,"conv256_down",!0),we=A(589824,256,3,"conv256_1"),Ne=A(589824,256,3,"conv256_2"),Ze=A(589824,256,3,"conv256_down_out"),Bt=k.L(function(){return k.N(k.I(h(256*128),[128,256]),[1,0])});if(y.push({paramPath:"fc"}),v().length!==0)throw new Error("weights remaing after extract: "+v().length);var Yt={conv32_down:O,conv32_1:P,conv32_2:B,conv32_3:H,conv64_down:Y,conv64_1:Q,conv64_2:ue,conv64_3:le,conv128_down:_e,conv128_1:De,conv128_2:Ue,conv256_down:Fe,conv256_1:we,conv256_2:Ne,conv256_down_out:Ze,fc:Bt};return{params:Yt,paramMappings:y}}function eo(p,l){var h=vr(p,l);function v(T){var A=h(T+"/scale/weights",1),O=h(T+"/scale/biases",1);return{weights:A,biases:O}}function y(T){var A=h(T+"/conv/filters",4),O=h(T+"/conv/bias",1),P=v(T);return{conv:{filters:A,bias:O},scale:P}}function b(T){return{conv1:y(T+"/conv1"),conv2:y(T+"/conv2")}}return{extractConvLayerParams:y,extractResidualLayerParams:b}}function ur(p){var l=[],h=eo(p,l),v=h.extractConvLayerParams,y=h.extractResidualLayerParams,b=v("conv32_down"),T=y("conv32_1"),A=y("conv32_2"),O=y("conv32_3"),P=y("conv64_down"),B=y("conv64_1"),H=y("conv64_2"),Y=y("conv64_3"),Q=y("conv128_down"),ue=y("conv128_1"),le=y("conv128_2"),_e=y("conv256_down"),De=y("conv256_1"),Ue=y("conv256_2"),Fe=y("conv256_down_out"),we=p.fc;if(l.push({originalPath:"fc",paramPath:"fc"}),!Cn(we))throw new Error("expected weightMap[fc] to be a Tensor2D, instead have "+we);var Ne={conv32_down:b,conv32_1:T,conv32_2:A,conv32_3:O,conv64_down:P,conv64_1:B,conv64_2:H,conv64_3:Y,conv128_down:Q,conv128_1:ue,conv128_2:le,conv256_down:_e,conv256_1:De,conv256_2:Ue,conv256_down_out:Fe,fc:we};return sr(p,l),{params:Ne,paramMappings:l}}function $n(p,l){var h=qu(p,l.conv1);return h=ms(h,l.conv2),h=k.c(h,p),h=k.w(h),h}function F(p,l){var h=gs(p,l.conv1);h=ms(h,l.conv2);var v=k.d(p,2,2,"valid"),y=k.P(v.shape),b=v.shape[3]!==h.shape[3],T=v.shape[1]!==h.shape[1]||v.shape[2]!==h.shape[2];if(T){var A=Object(q.e)(h.shape);A[1]=1;var O=k.P(A);h=k.h([h,O],1);var P=Object(q.e)(h.shape);P[2]=1;var B=k.P(P);h=k.h([h,B],2)}return v=b?k.h([v,y],3):v,h=k.c(v,h),h=k.w(h),h}var aa=function(p){Object(q.c)(l,p);function l(){return p.call(this,"FaceRecognitionNet")||this}return l.prototype.forwardInput=function(h){var v=this.params;if(!v)throw new Error("FaceRecognitionNet - load model before inference");return k.L(function(){var y=h.toBatchTensor(150,!0).toFloat(),b=[122.782,117.001,104.298],T=de(y,b).div(k.y(256)),A=gs(T,v.conv32_down);A=k.s(A,3,2,"valid"),A=$n(A,v.conv32_1),A=$n(A,v.conv32_2),A=$n(A,v.conv32_3),A=F(A,v.conv64_down),A=$n(A,v.conv64_1),A=$n(A,v.conv64_2),A=$n(A,v.conv64_3),A=F(A,v.conv128_down),A=$n(A,v.conv128_1),A=$n(A,v.conv128_2),A=F(A,v.conv256_down),A=$n(A,v.conv256_1),A=$n(A,v.conv256_2),A=F(A,v.conv256_down_out);var O=A.mean([1,2]),P=k.q(O,v.fc);return P})},l.prototype.forward=function(h){return Object(q.b)(this,void 0,void 0,function(){var v;return Object(q.d)(this,function(y){switch(y.label){case 0:return v=this.forwardInput,[4,Zt(h)];case 1:return[2,v.apply(this,[y.sent()])]}})})},l.prototype.computeFaceDescriptor=function(h){return Object(q.b)(this,void 0,void 0,function(){var v,y,b,T=this;return Object(q.d)(this,function(A){switch(A.label){case 0:return[4,Zt(h)];case 1:return v=A.sent(),y=k.L(function(){return k.O(T.forwardInput(v))}),[4,Promise.all(y.map(function(O){return O.data()}))];case 2:return b=A.sent(),y.forEach(function(O){return O.dispose()}),[2,v.isBatchInput?b:b[0]]}})})},l.prototype.getDefaultModelName=function(){return"face_recognition_model"},l.prototype.extractParamsFromWeigthMap=function(h){return ur(h)},l.prototype.extractParams=function(h){return $u(h)},l}(ir);function Ti(p){var l=new aa;return l.extractWeights(p),l}function Xo(p,l){var h={descriptor:l};return Object.assign({},p,h)}function Nn(p){return typeof p.age=="number"}function kn(p,l){var h={age:l};return Object.assign({},p,h)}function 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0");if(!Array.isArray(this._scoreThresholds)||this._scoreThresholds.length!==3||this._scoreThresholds.some(function(O){return typeof O!="number"}))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(O){return typeof O!="number"})))throw new Error(this._name+" - expected scaleSteps to be an array of numbers")}return Object.defineProperty(p.prototype,"minFaceSize",{get:function(){return this._minFaceSize},enumerable:!0,configurable:!0}),Object.defineProperty(p.prototype,"scaleFactor",{get:function(){return this._scaleFactor},enumerable:!0,configurable:!0}),Object.defineProperty(p.prototype,"maxNumScales",{get:function(){return this._maxNumScales},enumerable:!0,configurable:!0}),Object.defineProperty(p.prototype,"scoreThresholds",{get:function(){return this._scoreThresholds},enumerable:!0,configurable:!0}),Object.defineProperty(p.prototype,"scaleSteps",{get:function(){return this._scaleSteps},enumerable:!0,configurable:!0}),p}();function Jn(p,l){function h(O,P){var B=k.K(p(3*3*O),[3,3,O,1]),H=k.H(p(O)),Y=k.H(p(O)),Q=k.H(p(O)),ue=k.H(p(O));return l.push({paramPath:P+"/filters"},{paramPath:P+"/batch_norm_scale"},{paramPath:P+"/batch_norm_offset"},{paramPath:P+"/batch_norm_mean"},{paramPath:P+"/batch_norm_variance"}),{filters:B,batch_norm_scale:H,batch_norm_offset:Y,batch_norm_mean:Q,batch_norm_variance:ue}}function v(O,P,B,H,Y){var Q=k.K(p(O*P*B*B),[B,B,O,P]),ue=k.H(p(P));return l.push({paramPath:H+"/filters"},{paramPath:H+"/"+(Y?"batch_norm_offset":"bias")}),{filters:Q,bias:ue}}function y(O,P,B,H){var Y=v(O,P,B,H,!0),Q=Y.filters,ue=Y.bias;return{filters:Q,batch_norm_offset:ue}}function b(O,P,B){var H=h(O,B+"/depthwise_conv"),Y=y(O,P,1,B+"/pointwise_conv");return{depthwise_conv:H,pointwise_conv:Y}}function T(){var O=y(3,32,3,"mobilenetv1/conv_0"),P=b(32,64,"mobilenetv1/conv_1"),B=b(64,128,"mobilenetv1/conv_2"),H=b(128,128,"mobilenetv1/conv_3"),Y=b(128,256,"mobilenetv1/conv_4"),Q=b(256,256,"mobilenetv1/conv_5"),ue=b(256,512,"mobilenetv1/conv_6"),le=b(512,512,"mobilenetv1/conv_7"),_e=b(512,512,"mobilenetv1/conv_8"),De=b(512,512,"mobilenetv1/conv_9"),Ue=b(512,512,"mobilenetv1/conv_10"),Fe=b(512,512,"mobilenetv1/conv_11"),we=b(512,1024,"mobilenetv1/conv_12"),Ne=b(1024,1024,"mobilenetv1/conv_13");return{conv_0:O,conv_1:P,conv_2:B,conv_3:H,conv_4:Y,conv_5:Q,conv_6:ue,conv_7:le,conv_8:_e,conv_9:De,conv_10:Ue,conv_11:Fe,conv_12:we,conv_13:Ne}}function A(){var O=y(1024,256,1,"prediction_layer/conv_0"),P=y(256,512,3,"prediction_layer/conv_1"),B=y(512,128,1,"prediction_layer/conv_2"),H=y(128,256,3,"prediction_layer/conv_3"),Y=y(256,128,1,"prediction_layer/conv_4"),Q=y(128,256,3,"prediction_layer/conv_5"),ue=y(256,64,1,"prediction_layer/conv_6"),le=y(64,128,3,"prediction_layer/conv_7"),_e=v(512,12,1,"prediction_layer/box_predictor_0/box_encoding_predictor"),De=v(512,9,1,"prediction_layer/box_predictor_0/class_predictor"),Ue=v(1024,24,1,"prediction_layer/box_predictor_1/box_encoding_predictor"),Fe=v(1024,18,1,"prediction_layer/box_predictor_1/class_predictor"),we=v(512,24,1,"prediction_layer/box_predictor_2/box_encoding_predictor"),Ne=v(512,18,1,"prediction_layer/box_predictor_2/class_predictor"),Ze=v(256,24,1,"prediction_layer/box_predictor_3/box_encoding_predictor"),Bt=v(256,18,1,"prediction_layer/box_predictor_3/class_predictor"),Yt=v(256,24,1,"prediction_layer/box_predictor_4/box_encoding_predictor"),At=v(256,18,1,"prediction_layer/box_predictor_4/class_predictor"),rt=v(128,24,1,"prediction_layer/box_predictor_5/box_encoding_predictor"),Kt=v(128,18,1,"prediction_layer/box_predictor_5/class_predictor"),on={box_encoding_predictor:_e,class_predictor:De},nn={box_encoding_predictor:Ue,class_predictor:Fe},dt={box_encoding_predictor:we,class_predictor:Ne},zn={box_encoding_predictor:Ze,class_predictor:Bt},Ie={box_encoding_predictor:Yt,class_predictor:At},Sn={box_encoding_predictor:rt,class_predictor:Kt};return{conv_0:O,conv_1:P,conv_2:B,conv_3:H,conv_4:Y,conv_5:Q,conv_6:ue,conv_7:le,box_predictor_0:on,box_predictor_1:nn,box_predictor_2:dt,box_predictor_3:zn,box_predictor_4:Ie,box_predictor_5:Sn}}return{extractMobilenetV1Params:T,extractPredictionLayerParams:A}}function Di(p){var l=[],h=Yn(p),v=h.extractWeights,y=h.getRemainingWeights,b=Jn(v,l),T=b.extractMobilenetV1Params,A=b.extractPredictionLayerParams,O=T(),P=A(),B=k.J(v(5118*4),[1,5118,4]),H={extra_dim:B};if(l.push({paramPath:"output_layer/extra_dim"}),y().length!==0)throw new Error("weights remaing after extract: "+y().length);return{params:{mobilenetv1:O,prediction_layer:P,output_layer:H},paramMappings:l}}function jr(p,l){var h=vr(p,l);function v(P,B,H){var Y=h(P+"/Conv2d_"+B+"_pointwise/weights",4,H+"/filters"),Q=h(P+"/Conv2d_"+B+"_pointwise/convolution_bn_offset",1,H+"/batch_norm_offset");return{filters:Y,batch_norm_offset:Q}}function y(P){var B="mobilenetv1/conv_"+P,H="MobilenetV1/Conv2d_"+P+"_depthwise",Y=B+"/depthwise_conv",Q=B+"/pointwise_conv",ue=h(H+"/depthwise_weights",4,Y+"/filters"),le=h(H+"/BatchNorm/gamma",1,Y+"/batch_norm_scale"),_e=h(H+"/BatchNorm/beta",1,Y+"/batch_norm_offset"),De=h(H+"/BatchNorm/moving_mean",1,Y+"/batch_norm_mean"),Ue=h(H+"/BatchNorm/moving_variance",1,Y+"/batch_norm_variance");return{depthwise_conv:{filters:ue,batch_norm_scale:le,batch_norm_offset:_e,batch_norm_mean:De,batch_norm_variance:Ue},pointwise_conv:v("MobilenetV1",P,Q)}}function b(){return{conv_0:v("MobilenetV1",0,"mobilenetv1/conv_0"),conv_1:y(1),conv_2:y(2),conv_3:y(3),conv_4:y(4),conv_5:y(5),conv_6:y(6),conv_7:y(7),conv_8:y(8),conv_9:y(9),conv_10:y(10),conv_11:y(11),conv_12:y(12),conv_13:y(13)}}function T(P,B){var H=h(P+"/weights",4,B+"/filters"),Y=h(P+"/biases",1,B+"/bias");return{filters:H,bias:Y}}function A(P){var B=T("Prediction/BoxPredictor_"+P+"/BoxEncodingPredictor","prediction_layer/box_predictor_"+P+"/box_encoding_predictor"),H=T("Prediction/BoxPredictor_"+P+"/ClassPredictor","prediction_layer/box_predictor_"+P+"/class_predictor");return{box_encoding_predictor:B,class_predictor:H}}function O(){return{conv_0:v("Prediction",0,"prediction_layer/conv_0"),conv_1:v("Prediction",1,"prediction_layer/conv_1"),conv_2:v("Prediction",2,"prediction_layer/conv_2"),conv_3:v("Prediction",3,"prediction_layer/conv_3"),conv_4:v("Prediction",4,"prediction_layer/conv_4"),conv_5:v("Prediction",5,"prediction_layer/conv_5"),conv_6:v("Prediction",6,"prediction_layer/conv_6"),conv_7:v("Prediction",7,"prediction_layer/conv_7"),box_predictor_0:A(0),box_predictor_1:A(1),box_predictor_2:A(2),box_predictor_3:A(3),box_predictor_4:A(4),box_predictor_5:A(5)}}return{extractMobilenetV1Params:b,extractPredictionLayerParams:O}}function K(p){var l=[],h=jr(p,l),v=h.extractMobilenetV1Params,y=h.extractPredictionLayerParams,b=p["Output/extra_dim"];if(l.push({originalPath:"Output/extra_dim",paramPath:"output_layer/extra_dim"}),!bn(b))throw new Error("expected weightMap['Output/extra_dim'] to be a Tensor3D, instead have "+b);var T={mobilenetv1:v(),prediction_layer:y(),output_layer:{extra_dim:b}};return sr(p,l),{params:T,paramMappings:l}}function zt(p,l,h){return k.L(function(){var v=k.i(p,l.filters,h,"same");return v=k.c(v,l.batch_norm_offset),k.g(v,0,6)})}var Hn=.0010000000474974513;function cr(p,l,h){return k.L(function(){var v=k.j(p,l.filters,h,"same");return v=k.e(v,l.batch_norm_mean,l.batch_norm_variance,l.batch_norm_offset,l.batch_norm_scale,Hn),k.g(v,0,6)})}function _n(p){return[2,4,6,12].some(function(l){return l===p})?[2,2]:[1,1]}function wr(p,l){return k.L(function(){var h=null,v=zt(p,l.conv_0,[2,2]),y=[l.conv_1,l.conv_2,l.conv_3,l.conv_4,l.conv_5,l.conv_6,l.conv_7,l.conv_8,l.conv_9,l.conv_10,l.conv_11,l.conv_12,l.conv_13];if(y.forEach(function(b,T){var A=T+1,O=_n(A);v=cr(v,b.depthwise_conv,O),v=zt(v,b.pointwise_conv,[1,1]),A===11&&(h=v)}),h===null)throw new Error("mobileNetV1 - output of conv layer 11 is null");return{out:v,conv11:h}})}function We(p,l,h,v,y){var b=p.shape[0],T=Math.min(h,b),A=l.map(function(B,H){return{score:B,boxIndex:H}}).filter(function(B){return B.score>y}).sort(function(B,H){return H.score-B.score}),O=function(B){return B<=v?1:0},P=[];return A.forEach(function(B){if(P.length>=T)return;for(var H=B.score,Y=P.length-1;Y>=0;--Y){var Q=Ur(p,B.boxIndex,P[Y]);if(Q===0)continue;if(B.score*=O(Q),B.score<=y)break}H===B.score&&P.push(B.boxIndex)}),P}function Ur(p,l,h){var v=p.arraySync(),y=Math.min(v[l][0],v[l][2]),b=Math.min(v[l][1],v[l][3]),T=Math.max(v[l][0],v[l][2]),A=Math.max(v[l][1],v[l][3]),O=Math.min(v[h][0],v[h][2]),P=Math.min(v[h][1],v[h][3]),B=Math.max(v[h][0],v[h][2]),H=Math.max(v[h][1],v[h][3]),Y=(T-y)*(A-b),Q=(B-O)*(H-P);if(Y<=0||Q<=0)return 0;var ue=Math.max(y,O),le=Math.max(b,P),_e=Math.min(T,B),De=Math.min(A,H),Ue=Math.max(_e-ue,0)*Math.max(De-le,0);return Ue/(Y+Q-Ue)}function Wr(p){var l=k.O(k.N(p,[1,0])),h=[k.F(l[2],l[0]),k.F(l[3],l[1])],v=[k.c(l[0],k.k(h[0],k.y(2))),k.c(l[1],k.k(h[1],k.y(2)))];return{sizes:h,centers:v}}function Ko(p,l){var h=Wr(p),v=h.sizes,y=h.centers,b=k.O(k.N(l,[1,0])),T=k.k(k.t(k.l(k.k(b[2],k.y(5))),v[0]),k.y(2)),A=k.c(k.t(k.k(b[0],k.y(10)),v[0]),y[0]),O=k.k(k.t(k.l(k.k(b[3],k.y(5))),v[1]),k.y(2)),P=k.c(k.t(k.k(b[1],k.y(10)),v[1]),y[1]);return k.N(k.E([k.F(A,T),k.F(P,O),k.c(A,T),k.c(P,O)]),[1,0])}function Er(p,l,h){return k.L(function(){var v=p.shape[0],y=Ko(k.x(k.M(h.extra_dim,[v,1,1]),[-1,4]),k.x(p,[-1,4]));y=k.x(y,[v,y.shape[0]/v,4]);var b=k.A(k.B(l,[0,0,1],[-1,-1,-1])),T=k.B(b,[0,0,0],[-1,-1,1]);T=k.x(T,[v,T.shape[1]]);var A=k.O(y),O=k.O(T);return{boxes:A,scores:O}})}function ia(p,l){return k.L(function(){var h=p.shape[0],v=k.x(Vn(p,l.box_encoding_predictor),[h,-1,1,4]),y=k.x(Vn(p,l.class_predictor),[h,-1,3]);return{boxPredictionEncoding:v,classPrediction:y}})}function ys(p,l,h){return k.L(function(){var v=zt(p,h.conv_0,[1,1]),y=zt(v,h.conv_1,[2,2]),b=zt(y,h.conv_2,[1,1]),T=zt(b,h.conv_3,[2,2]),A=zt(T,h.conv_4,[1,1]),O=zt(A,h.conv_5,[2,2]),P=zt(O,h.conv_6,[1,1]),B=zt(P,h.conv_7,[2,2]),H=ia(l,h.box_predictor_0),Y=ia(p,h.box_predictor_1),Q=ia(y,h.box_predictor_2),ue=ia(T,h.box_predictor_3),le=ia(O,h.box_predictor_4),_e=ia(B,h.box_predictor_5),De=k.h([H.boxPredictionEncoding,Y.boxPredictionEncoding,Q.boxPredictionEncoding,ue.boxPredictionEncoding,le.boxPredictionEncoding,_e.boxPredictionEncoding],1),Ue=k.h([H.classPrediction,Y.classPrediction,Q.classPrediction,ue.classPrediction,le.classPrediction,_e.classPrediction],1);return{boxPredictions:De,classPredictions:Ue}})}var sa=function(){function p(l){var h=l===void 0?{}:l,v=h.minConfidence,y=h.maxResults;if(this._name="SsdMobilenetv1Options",this._minConfidence=v||.5,this._maxResults=y||100,typeof this._minConfidence!="number"||this._minConfidence<=0||this._minConfidence>=1)throw new Error(this._name+" - expected minConfidence to be a 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0:return v=this.forwardInput,[4,Zt(h)];case 1:return[2,v.apply(this,[y.sent()])]}})})},l.prototype.locateFaces=function(h,v){return v===void 0&&(v={}),Object(q.b)(this,void 0,void 0,function(){var y,b,T,A,O,P,B,H,Y,Q,ue,le,_e,De,Ue,Fe,we,Ne,Ze,Bt,Yt;return Object(q.d)(this,function(At){switch(At.label){case 0:return y=new sa(v),b=y.maxResults,T=y.minConfidence,[4,Zt(h)];case 1:for(A=At.sent(),O=this.forwardInput(A),P=O.boxes,B=O.scores,H=P[0],Y=B[0],Q=1;Q<P.length;Q++)P[Q].dispose(),B[Q].dispose();return _e=(le=Array).from,[4,Y.data()];case 2:return ue=_e.apply(le,[At.sent()]),De=.5,Ue=We(H,ue,b,De,T),Fe=A.getReshapedInputDimensions(0),we=A.inputSize,Ne=we/Fe.width,Ze=we/Fe.height,Bt=H.arraySync(),Yt=Ue.map(function(rt){var Kt=[Math.max(0,Bt[rt][0]),Math.min(1,Bt[rt][2])].map(function(Sn){return Sn*Ze}),on=Kt[0],nn=Kt[1],dt=[Math.max(0,Bt[rt][1]),Math.min(1,Bt[rt][3])].map(function(Sn){return Sn*Ne}),zn=dt[0],Ie=dt[1];return new _(ue[rt],new pn(zn,on,Ie-zn,nn-on),{height:A.getInputHeight(0),width:A.getInputWidth(0)})}),H.dispose(),Y.dispose(),[2,Yt]}})})},l.prototype.getDefaultModelName=function(){return"ssd_mobilenetv1_model"},l.prototype.extractParamsFromWeigthMap=function(h){return K(h)},l.prototype.extractParams=function(h){return Di(h)},l}(ir);function Jt(p){var l=new _r;return l.extractWeights(p),l}function qo(p){return Jt(p)}var Ju=function(p){Object(q.c)(l,p);function l(){return p!==null&&p.apply(this,arguments)||this}return l}(_r),to=.4,Ni=[new et(.738768,.874946),new et(2.42204,2.65704),new et(4.30971,7.04493),new et(10.246,4.59428),new et(12.6868,11.8741)],gt=[new et(1.603231,2.094468),new et(6.041143,7.080126),new et(2.882459,3.518061),new et(4.266906,5.178857),new et(9.041765,10.66308)],Qn=[117.001,114.697,97.404],xs="tiny_yolov2_model",bs="tiny_yolov2_separable_conv_model",no=function(p){return typeof p=="number"};function ws(p){if(!p)throw new Error("invalid config: "+p);if(typeof p.withSeparableConvs!="boolean")throw new Error("config.withSeparableConvs has to be a boolean, have: "+p.withSeparableConvs);if(!no(p.iouThreshold)||p.iouThreshold<0||p.iouThreshold>1)throw new Error("config.iouThreshold has to be a number between [0, 1], have: "+p.iouThreshold);if(!Array.isArray(p.classes)||!p.classes.length||!p.classes.every(function(l){return typeof l=="string"}))throw new Error("config.classes has to be an array class names: string[], have: "+JSON.stringify(p.classes));if(!Array.isArray(p.anchors)||!p.anchors.length||!p.anchors.map(function(l){return l||{}}).every(function(l){return no(l.x)&&no(l.y)}))throw new Error("config.anchors has to be an array of { x: number, y: number }, have: "+JSON.stringify(p.anchors));if(p.meanRgb&&(!Array.isArray(p.meanRgb)||p.meanRgb.length!==3||!p.meanRgb.every(no)))throw new Error("config.meanRgb has to be an array of shape [number, number, number], have: "+JSON.stringify(p.meanRgb))}function Ta(p){return k.L(function(){var l=k.t(p,k.y(.10000000149011612));return k.c(k.w(k.F(p,l)),l)})}function Ln(p,l){return k.L(function(){var h=k.v(p,[[0,0],[1,1],[1,1],[0,0]]);return h=k.i(h,l.conv.filters,[1,1],"valid"),h=k.F(h,l.bn.sub),h=k.t(h,l.bn.truediv),h=k.c(h,l.conv.bias),Ta(h)})}function Cr(p,l){return k.L(function(){var h=k.v(p,[[0,0],[1,1],[1,1],[0,0]]);return h=k.z(h,l.depthwise_filter,l.pointwise_filter,[1,1],"valid"),h=k.c(h,l.bias),Ta(h)})}function Es(p,l){var h=Br(p,l);function v(T,A){var O=k.H(p(T)),P=k.H(p(T));return l.push({paramPath:A+"/sub"},{paramPath:A+"/truediv"}),{sub:O,truediv:P}}function y(T,A,O){var P=h(T,A,3,O+"/conv"),B=v(A,O+"/bn");return{conv:P,bn:B}}var b=Ka(p,l);return{extractConvParams:h,extractConvWithBatchNormParams:y,extractSeparableConvParams:b}}function _s(p,l,h,v){var y=Yn(p),b=y.extractWeights,T=y.getRemainingWeights,A=[],O=Es(b,A),P=O.extractConvParams,B=O.extractConvWithBatchNormParams,H=O.extractSeparableConvParams,Y;if(l.withSeparableConvs){var Q=v[0],ue=v[1],le=v[2],_e=v[3],De=v[4],Ue=v[5],Fe=v[6],we=v[7],Ne=v[8],Ze=l.isFirstLayerConv2d?P(Q,ue,3,"conv0"):H(Q,ue,"conv0"),Bt=H(ue,le,"conv1"),Yt=H(le,_e,"conv2"),At=H(_e,De,"conv3"),rt=H(De,Ue,"conv4"),Kt=H(Ue,Fe,"conv5"),on=we?H(Fe,we,"conv6"):void 0,nn=Ne?H(we,Ne,"conv7"):void 0,dt=P(Ne||we||Fe,5*h,1,"conv8");Y={conv0:Ze,conv1:Bt,conv2:Yt,conv3:At,conv4:rt,conv5:Kt,conv6:on,conv7:nn,conv8:dt}}else{var Q=v[0],ue=v[1],le=v[2],_e=v[3],De=v[4],Ue=v[5],Fe=v[6],we=v[7],Ne=v[8],Ze=B(Q,ue,"conv0"),Bt=B(ue,le,"conv1"),Yt=B(le,_e,"conv2"),At=B(_e,De,"conv3"),rt=B(De,Ue,"conv4"),Kt=B(Ue,Fe,"conv5"),on=B(Fe,we,"conv6"),nn=B(we,Ne,"conv7"),dt=P(Ne,5*h,1,"conv8");Y={conv0:Ze,conv1:Bt,conv2:Yt,conv3:At,conv4:rt,conv5:Kt,conv6:on,conv7:nn,conv8:dt}}if(T().length!==0)throw new Error("weights remaing after extract: "+T().length);return{params:Y,paramMappings:A}}function Cs(p,l){var h=vr(p,l);function v(A){var O=h(A+"/sub",1),P=h(A+"/truediv",1);return{sub:O,truediv:P}}function y(A){var O=h(A+"/filters",4),P=h(A+"/bias",1);return{filters:O,bias:P}}function b(A){var O=y(A+"/conv"),P=v(A+"/bn");return{conv:O,bn:P}}var T=qa(h);return{extractConvParams:y,extractConvWithBatchNormParams:b,extractSeparableConvParams:T}}function Rs(p,l){var h=[],v=Cs(p,h),y=v.extractConvParams,b=v.extractConvWithBatchNormParams,T=v.extractSeparableConvParams,A;if(l.withSeparableConvs){var O=l.filterSizes&&l.filterSizes.length||9;A={conv0:l.isFirstLayerConv2d?y("conv0"):T("conv0"),conv1:T("conv1"),conv2:T("conv2"),conv3:T("conv3"),conv4:T("conv4"),conv5:T("conv5"),conv6:O>7?T("conv6"):void 0,conv7:O>8?T("conv7"):void 0,conv8:y("conv8")}}else A={conv0:b("conv0"),conv1:b("conv1"),conv2:b("conv2"),conv3:b("conv3"),conv4:b("conv4"),conv5:b("conv5"),conv6:b("conv6"),conv7:b("conv7"),conv8:y("conv8")};return sr(p,h),{params:A,paramMappings:h}}var ki;(function(p){p[p.XS=224]="XS",p[p.SM=320]="SM",p[p.MD=416]="MD",p[p.LG=608]="LG"})(ki||(ki={}));var lr=function(){function p(l){var h=l===void 0?{}:l,v=h.inputSize,y=h.scoreThreshold;if(this._name="TinyYolov2Options",this._inputSize=v||416,this._scoreThreshold=y||.5,typeof this._inputSize!="number"||this._inputSize%32!==0)throw new Error(this._name+" - expected inputSize to be a number divisible by 32");if(typeof this._scoreThreshold!="number"||this._scoreThreshold<=0||this._scoreThreshold>=1)throw new Error(this._name+" - expected scoreThreshold to be a number between 0 and 1")}return Object.defineProperty(p.prototype,"inputSize",{get:function(){return this._inputSize},enumerable:!0,configurable:!0}),Object.defineProperty(p.prototype,"scoreThreshold",{get:function(){return this._scoreThreshold},enumerable:!0,configurable:!0}),p}(),Da=function(p){Object(q.c)(l,p);function l(h){var v=p.call(this,"TinyYolov2")||this;return ws(h),v._config=h,v}return Object.defineProperty(l.prototype,"config",{get:function(){return this._config},enumerable:!0,configurable:!0}),Object.defineProperty(l.prototype,"withClassScores",{get:function(){return this.config.withClassScores||this.config.classes.length>1},enumerable:!0,configurable:!0}),Object.defineProperty(l.prototype,"boxEncodingSize",{get:function(){return 5+(this.withClassScores?this.config.classes.length:0)},enumerable:!0,configurable:!0}),l.prototype.runTinyYolov2=function(h,v){var y=Ln(h,v.conv0);return y=k.s(y,[2,2],[2,2],"same"),y=Ln(y,v.conv1),y=k.s(y,[2,2],[2,2],"same"),y=Ln(y,v.conv2),y=k.s(y,[2,2],[2,2],"same"),y=Ln(y,v.conv3),y=k.s(y,[2,2],[2,2],"same"),y=Ln(y,v.conv4),y=k.s(y,[2,2],[2,2],"same"),y=Ln(y,v.conv5),y=k.s(y,[2,2],[1,1],"same"),y=Ln(y,v.conv6),y=Ln(y,v.conv7),Vn(y,v.conv8,"valid",!1)},l.prototype.runMobilenet=function(h,v){var y=this.config.isFirstLayerConv2d?Ta(Vn(h,v.conv0,"valid",!1)):Cr(h,v.conv0);return y=k.s(y,[2,2],[2,2],"same"),y=Cr(y,v.conv1),y=k.s(y,[2,2],[2,2],"same"),y=Cr(y,v.conv2),y=k.s(y,[2,2],[2,2],"same"),y=Cr(y,v.conv3),y=k.s(y,[2,2],[2,2],"same"),y=Cr(y,v.conv4),y=k.s(y,[2,2],[2,2],"same"),y=Cr(y,v.conv5),y=k.s(y,[2,2],[1,1],"same"),y=v.conv6?Cr(y,v.conv6):y,y=v.conv7?Cr(y,v.conv7):y,Vn(y,v.conv8,"valid",!1)},l.prototype.forwardInput=function(h,v){var y=this,b=this.params;if(!b)throw new Error("TinyYolov2 - load model before inference");return k.L(function(){var T=h.toBatchTensor(v,!1).toFloat();return T=y.config.meanRgb?de(T,y.config.meanRgb):T,T=T.div(k.y(256)),y.config.withSeparableConvs?y.runMobilenet(T,b):y.runTinyYolov2(T,b)})},l.prototype.forward=function(h,v){return Object(q.b)(this,void 0,void 0,function(){var y;return Object(q.d)(this,function(b){switch(b.label){case 0:return y=this.forwardInput,[4,Zt(h)];case 1:return[4,y.apply(this,[b.sent(),v])];case 2:return[2,b.sent()]}})})},l.prototype.detect=function(h,v){return v===void 0&&(v={}),Object(q.b)(this,void 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v=this.config.filterSizes||l.DEFAULT_FILTER_SIZES,y=v?v.length:void 0;if(y!==7&&y!==8&&y!==9)throw new Error("TinyYolov2 - expected 7 | 8 | 9 convolutional filters, but found "+y+" filterSizes in config");return _s(h,this.config,this.boxEncodingSize,v)},l.prototype.extractBoxes=function(h,v,y){return Object(q.b)(this,void 0,void 0,function(){var b,T,A,O,P,B,H,Y,Q,ue,le,_e,De,Ue,Fe,we,Ne,Ze,Bt,Yt,At,rt,Kt,on,nn,dt,zn,Ie,Sn,Ot=this;return Object(q.d)(this,function(sn){switch(sn.label){case 0:return b=v.width,T=v.height,A=Math.max(b,T),O=A/b,P=A/T,B=h.shape[1],H=this.config.anchors.length,Y=k.L(function(){var Nr=h.reshape([B,B,H,Ot.boxEncodingSize]),hr=Nr.slice([0,0,0,0],[B,B,H,4]),kr=Nr.slice([0,0,0,4],[B,B,H,1]),pa=Ot.withClassScores?k.D(Nr.slice([0,0,0,5],[B,B,H,Ot.config.classes.length]),3):k.y(0);return[hr,kr,pa]}),Q=Y[0],ue=Y[1],le=Y[2],_e=[],[4,ue.array()];case 1:return De=sn.sent(),[4,Q.array()];case 2:Ue=sn.sent(),Fe=0,sn.label=3;case 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Fe=k.O(k.O(De,3)[1])[0],we=k.O(Ue)[0];return{scoresTensor:Fe,regionsTensor:we,scale:Y,statsForScale:Q}})}),T=b.map(function(Y){var Q=Y.scoresTensor,ue=Y.regionsTensor,le=Y.scale,_e=Y.statsForScale,De=Ss(Q,ue,le,h);if(Q.dispose(),ue.dispose(),!De.length)return y.stage1.push(_e),[];var Ue=Date.now(),Fe=$(De.map(function(we){return we.cell}),De.map(function(we){return we.score}),.5);return _e.nms=Date.now()-Ue,_e.numBoxes=Fe.length,y.stage1.push(_e),Fe.map(function(we){return De[we]})}),A=T.reduce(function(Y,Q){return Y.concat(Q)},[]),O=[],P=[];if(A.length>0){var B=Date.now(),H=$(A.map(function(Y){return Y.cell}),A.map(function(Y){return Y.score}),.7);y.stage1_nms=Date.now()-B,P=H.map(function(Y){return A[Y].score}),O=H.map(function(Y){return A[Y]}).map(function(Y){var Q=Y.cell,ue=Y.region;return new Rn(Q.left+ue.left*Q.width,Q.top+ue.top*Q.height,Q.right+ue.right*Q.width,Q.bottom+ue.bottom*Q.height).toSquare().round()})}return{boxes:O,scores:P}}function Qo(p,l,h){var 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