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0===r&&(r=.5),gt.localResponseNormalization(this,t,e,n,r)},t.prototype.pool=function(t,e,n,r,o){return this.throwIfDisposed(),gt.pool(this,t,e,n,r,o)},t.prototype.variable=function(t,e,n){return void 0===t&&(t=!0),this.throwIfDisposed(),mt().makeVariable(this,t,e,n)},t.prototype.unsortedSegmentSum=function(t,e){return this.throwIfDisposed(),gt.unsortedSegmentSum(this,t,e)},t.prototype.batchToSpaceND=function(t,e){return this.throwIfDisposed(),gt.batchToSpaceND(this,t,e)},t.prototype.spaceToBatchND=function(t,e){return this.throwIfDisposed(),gt.spaceToBatchND(this,t,e)},t.prototype.topk=function(t,e){return void 0===t&&(t=1),void 0===e&&(e=!0),this.throwIfDisposed(),gt.topk(this,t,e)},t.prototype.stridedSlice=function(t,e,n,r,o,i,a,s){return void 0===r&&(r=0),void 0===o&&(o=0),void 0===i&&(i=0),void 0===a&&(a=0),void 0===s&&(s=0),this.throwIfDisposed(),gt.stridedSlice(this,t,e,n,r,o,i,a,s)},t.prototype.depthToSpace=function(t,e){return this.throwIfDisposed(),gt.depthToSpace(this,t,e)},t.prototype.fft=function(){return this.throwIfDisposed(),gt.spectral.fft(this)},t.prototype.ifft=function(){return this.throwIfDisposed(),gt.spectral.ifft(this)},t.prototype.rfft=function(){return this.throwIfDisposed(),gt.spectral.rfft(this)},t.prototype.irfft=function(){return this.throwIfDisposed(),gt.spectral.irfft(this)},t}();Object.defineProperty(xt,Symbol.hasInstance,{value:function(t){return!!t&&null!=t.dataId&&null!=t.shape&&null!=t.dtype}});var bt,wt,Ct,Et,_t,It=function(t){function e(e,n,r,o){var i=t.call(this,e.shape,e.dtype,e.dataId,o)||this;return i.trainable=n,i.name=r,i}return s(e,t),e.prototype.assign=function(t){if(t.dtype!==this.dtype)throw new Error("dtype of the new value ("+t.dtype+") and previous value ("+this.dtype+") must match");if(!A(t.shape,this.shape))throw new Error("shape of the new value ("+t.shape+") and previous value ("+this.shape+") must match");mt().disposeTensor(this),this.dataId=t.dataId,mt().incRef(this,null)},e.prototype.dispose=function(){mt().disposeVariable(this),this.isDisposedInternal=!0},e}(xt);Object.defineProperty(It,Symbol.hasInstance,{value:function(t){return t instanceof xt&&null!=t.assign&&t.assign instanceof Function}}),function(t){t.R0="R0",t.R1="R1",t.R2="R2",t.R3="R3",t.R4="R4",t.R5="R5",t.R6="R6"}(bt||(bt={})),function(t){t.float32="float32",t.int32="int32",t.bool="int32",t.complex64="complex64"}(wt||(wt={})),function(t){t.float32="float32",t.int32="int32",t.bool="bool",t.complex64="complex64"}(Ct||(Ct={})),function(t){t.float32="float32",t.int32="float32",t.bool="float32",t.complex64="complex64"}(Et||(Et={})),function(t){t.float32="complex64",t.int32="complex64",t.bool="complex64",t.complex64="complex64"}(_t||(_t={}));var Rt={float32:Et,int32:wt,bool:Ct,complex64:_t};function St(t,e){if("string"===t||"string"===e){if("string"===t&&"string"===e)return"string";throw new Error("Can not upcast "+t+" with "+e)}return Rt[t][e]}function kt(t){return St(t,"int32")}function Dt(t,e){if(t.dtype===e.dtype)return[t,e];var n=St(t.dtype,e.dtype);return[t.cast(n),e.cast(n)]}function At(t,e){I(t.dtype===e.dtype,(function(){return"The dtypes of the first("+t.dtype+") and second("+e.dtype+") input must match"}))}function Tt(t){var e=[];return function t(e,n,r){if(null!=e)if(e instanceof xt)n.push(e);else if(o=e,Array.isArray(o)||"object"==typeof o){var o,i=e;for(var a in i){var s=i[a];r.has(s)||(r.add(s),t(s,n,r))}}}(t,e,new Set),e}Object.freeze({makeTypesMatch:Dt,assertTypesMatch:At,isTensorInList:function(t,e){return e.some((function(e){return e.id===t.id}))},getTensorsInContainer:Tt});var Nt,Ft=function(){function t(){this.registeredVariables={},this.nextTapeNodeId=0,this.numBytes=0,this.numTensors=0,this.numStringTensors=0,this.numDataBuffers=0,this.gradientDepth=0,this.kernelDepth=0,this.scopeStack=[],this.numDataMovesStack=[],this.nextScopeId=0,this.tensorInfo=new WeakMap,this.profiling=!1,this.activeProfile={newBytes:0,newTensors:0,peakBytes:0,kernels:[],result:null}}return t.prototype.dispose=function(){for(var t in this.registeredVariables)this.registeredVariables[t].dispose()},t}(),Mt=function(){function t(t){this.ENV=t,this.registry={},this.registryFactory={},this.pendingBackendInitId=0,this.state=new Ft}return t.prototype.ready=function(){return u(this,void 0,void 0,(function(){var t,e,n;return c(this,(function(r){switch(r.label){case 0:if(null!=this.pendingBackendInit)return[2,this.pendingBackendInit.then((function(){}))];if(null!=this.backendInstance)return[2];t=this.getSortedBackends(),e=0,r.label=1;case 1:return e<t.length?(n=t[e],[4,this.initializeBackend(n).success]):[3,5];case 2:return r.sent()?[4,this.setBackend(n)]:[3,4];case 3:return r.sent(),[2];case 4:return e++,[3,1];case 5:throw new Error("Could not initialize any backends, all backend initializations failed.")}}))}))},Object.defineProperty(t.prototype,"backend",{get:function(){if(null!=this.pendingBackendInit)throw new Error("Backend '"+this.backendName+"' has not yet been initialized. Make sure to await tf.ready() or await tf.setBackend() before calling other methods");if(null==this.backendInstance){var t=this.initializeBackendsAndReturnBest(),e=t.name;if(t.asyncInit)throw new Error("The highest priority backend '"+e+"' has not yet been initialized. Make sure to await tf.ready() or await tf.setBackend() before calling other methods");this.setBackend(e)}return this.backendInstance},enumerable:!0,configurable:!0}),t.prototype.backendNames=function(){return Object.keys(this.registryFactory)},t.prototype.findBackend=function(t){if(!(t in this.registry)){if(!(t in this.registryFactory))return null;if(this.initializeBackend(t).asyncInit)return null}return this.registry[t]},t.prototype.findBackendFactory=function(t){return t in this.registryFactory?this.registryFactory[t].factory:null},t.prototype.registerBackend=function(t,e,n){return void 0===n&&(n=1),t in this.registryFactory?(console.warn(t+" backend was already registered. Reusing existing backend factory."),!1):(this.registryFactory[t]={factory:e,priority:n},!0)},t.prototype.setBackend=function(t){return u(this,void 0,void 0,(function(){var e,n,r;return c(this,(function(o){switch(o.label){case 0:if(null==this.registryFactory[t])throw new Error("Backend name '"+t+"' not found in registry");return this.backendName=t,null!=this.registry[t]?[3,4]:(this.backendInstance=null,e=this.initializeBackend(t),n=e.success,e.asyncInit?[4,n]:[3,2]);case 1:return r=o.sent(),[3,3];case 2:r=n,o.label=3;case 3:if(!r)return[2,!1];o.label=4;case 4:return this.backendInstance=this.registry[t],this.setupRegisteredKernels(),this.profiler=new lt(this.backendInstance),[2,!0]}}))}))},t.prototype.setupRegisteredKernels=function(){var t=this;g(this.backendName).forEach((function(e){null!=e.setupFunc&&e.setupFunc(t.backendInstance)}))},t.prototype.disposeRegisteredKernels=function(t){var e=this;g(t).forEach((function(n){null!=n.disposeFunc&&n.disposeFunc(e.registry[t])}))},t.prototype.initializeBackend=function(t){var e=this,n=this.registryFactory[t];if(null==n)throw new Error("Cannot initialize backend "+t+", no registration found.");try{var r=n.factory();if(Promise.resolve(r)===r){var o=++this.pendingBackendInitId,i=r.then((function(n){return!(o<e.pendingBackendInitId||(e.registry[t]=n,e.pendingBackendInit=null,0))})).catch((function(n){return!(o<e.pendingBackendInitId||(e.pendingBackendInit=null,console.warn("Initialization of backend "+t+" failed"),console.warn(n.stack||n.message),1))}));return this.pendingBackendInit=i,{success:i,asyncInit:!0}}return this.registry[t]=r,{success:!0,asyncInit:!1}}catch(e){return console.warn("Initialization of backend "+t+" failed"),console.warn(e.stack||e.message),{success:!1,asyncInit:!1}}},t.prototype.removeBackend=function(t){if(!(t in this.registryFactory))throw new Error(t+" backend not found in registry");this.backendName===t&&null!=this.pendingBackendInit&&this.pendingBackendInitId++,t in this.registry&&(this.disposeRegisteredKernels(t),this.registry[t].dispose(),delete this.registry[t]),delete this.registryFactory[t],this.backendName===t&&(this.pendingBackendInit=null,this.backendName=null,this.backendInstance=null)},t.prototype.getSortedBackends=function(){var t=this;if(0===Object.keys(this.registryFactory).length)throw new Error("No backend found in registry.");return Object.keys(this.registryFactory).sort((function(e,n){return t.registryFactory[n].priority-t.registryFactory[e].priority}))},t.prototype.initializeBackendsAndReturnBest=function(){for(var t=this.getSortedBackends(),e=0;e<t.length;e++){var n=t[e],r=this.initializeBackend(n),o=r.success,i=r.asyncInit;if(i||o)return{name:n,asyncInit:i}}throw new Error("Could not initialize any backends, all backend initializations failed.")},t.prototype.moveData=function(t,e){var n=this.state.tensorInfo.get(e),r=n.backend,o=this.readSync(e);r.disposeData(e),n.backend=t,t.move(e,o,n.shape,n.dtype),this.shouldCheckForMemLeaks()&&this.state.numDataMovesStack[this.state.numDataMovesStack.length-1]++},t.prototype.tidy=function(t,e){var n,r=this,o=null;if(null==e){if("function"!=typeof t)throw new Error("Please provide a function to tidy()");e=t}else{if("string"!=typeof t&&!(t instanceof String))throw new Error("When calling with two arguments, the first argument to tidy() must be a string");if("function"!=typeof e)throw new Error("When calling with two arguments, the 2nd argument to tidy() must be a function");o=t}return this.scopedRun((function(){return r.startScope(o)}),(function(){return r.endScope(n)}),(function(){return(n=e())instanceof Promise&&console.error("Cannot return a Promise inside of tidy."),n}))},t.prototype.scopedRun=function(t,e,n){t();try{var r=n();return e(),r}catch(t){throw e(),t}},t.prototype.nextTensorId=function(){return t.nextTensorId++},t.prototype.nextVariableId=function(){return t.nextVariableId++},t.prototype.clone=function(t){var e=this.makeTensorFromDataId(t.dataId,t.shape,t.dtype),n={x:t};return this.addTapeNode(this.state.activeScope.name,n,[e],(function(t){return{x:function(){return t.toFloat()}}}),[]),e},t.prototype.runKernel=function(t,e,n,r,o){return this.runKernelFunc(null,e,null,t,n,r,o)},t.prototype.shouldCheckForMemLeaks=function(){return this.ENV.getBool("IS_TEST")},t.prototype.checkKernelForMemLeak=function(t,e,n){var r=this.backend.numDataIds(),o=0;n.forEach((function(t){o+="complex64"===t.dtype?3:1}));var i=this.state.numDataMovesStack[this.state.numDataMovesStack.length-1],a=r-e-o-i;if(a>0)throw new Error("Backend '"+this.backendName+"' has an internal memory leak ("+a+" data ids) after running '"+t+"'")},t.prototype.runKernelFunc=function(t,e,n,r,o,i,a){var s,u=this;void 0===i&&(i=[]),void 0===a&&(a=[]);var c=[],l=this.isTapeOn();null==r&&(r=null!=this.state.activeScope?this.state.activeScope.name:"");var h,f=function(t){l&&(c=t.map((function(t){return u.keep(u.clone(t))})))},p=this.state.numBytes,d=this.state.numTensors;this.shouldCheckForMemLeaks()&&this.state.numDataMovesStack.push(0);var v,g=m(r,this.backendName);return h=null!=g?function(){var t=u.backend.numDataIds();v=g.kernelFunc({inputs:e,attrs:o,backend:u.backend});var n=Array.isArray(v)?v:[v];u.shouldCheckForMemLeaks()&&u.checkKernelForMemLeak(r,t,n);var s=n.map((function(t){var e=t.dataId,n=t.shape,r=t.dtype;return u.makeTensorFromDataId(e,n,r)})),c=s.filter((function(t,e){return a[e]}));return f((i||[]).slice().concat(c)),s}:function(){var e=u.backend.numDataIds();v=u.tidy((function(){return t(u.backend,f)}));var n=Array.isArray(v)?v:[v];return u.shouldCheckForMemLeaks()&&u.checkKernelForMemLeak(r,e,n),n},this.scopedRun((function(){return u.state.kernelDepth++}),(function(){return u.state.kernelDepth--}),(function(){s=u.ENV.getBool("DEBUG")?u.profiler.profileKernel(r,e,(function(){return h()})):h()})),l&&this.addTapeNode(r,e,s,n,c),this.state.profiling&&this.state.activeProfile.kernels.push({name:r,bytesAdded:this.state.numBytes-p,totalBytesSnapshot:this.state.numBytes,tensorsAdded:this.state.numTensors-d,totalTensorsSnapshot:this.state.numTensors,inputShapes:Object.keys(e).map((function(t){return e[t].shape})),outputShapes:s.map((function(t){return t.shape}))}),Array.isArray(v)?s:s[0]},t.prototype.makeTensor=function(t,e,n,r){if(null==t)throw new Error("Values passed to engine.makeTensor() are null");n=n||"float32",r=r||this.backend;var o=t;"string"===n&&K(t[0])&&(o=t.map((function(t){return at(t)})));var i=r.write(o,e,n),a=new xt(e,n,i,this.nextTensorId());if(this.incRef(a,r),"string"===n){var s=this.state.tensorInfo.get(i),u=q(o);this.state.numBytes+=u-s.bytes,s.bytes=u}return a},t.prototype.makeTensorFromDataId=function(t,e,n,r){var o=new xt(e,n=n||"float32",t,this.nextTensorId());return this.incRef(o,r),o},t.prototype.makeVariable=function(t,e,n,r){void 0===e&&(e=!0),n=n||this.nextVariableId().toString(),null!=r&&r!==t.dtype&&(t=t.asType(r));var o=new It(t,e,n,this.nextTensorId());if(null!=this.state.registeredVariables[o.name])throw new Error("Variable with name "+o.name+" was already registered");return this.state.registeredVariables[o.name]=o,this.incRef(o,this.backend),o},t.prototype.incRef=function(t,e){var n=this.state.tensorInfo.has(t.dataId)?this.state.tensorInfo.get(t.dataId).refCount:0;if(this.state.numTensors++,"string"===t.dtype&&this.state.numStringTensors++,0===n){this.state.numDataBuffers++;var r=0;"complex64"!==t.dtype&&"string"!==t.dtype&&(r=t.size*j(t.dtype)),this.state.tensorInfo.set(t.dataId,{backend:e||this.backend,dtype:t.dtype,shape:t.shape,bytes:r,refCount:0}),this.state.numBytes+=r}this.state.tensorInfo.get(t.dataId).refCount++,t instanceof It||this.track(t)},t.prototype.disposeTensor=function(t){if(this.state.tensorInfo.has(t.dataId)){this.state.numTensors--,"string"===t.dtype&&this.state.numStringTensors--;var e=this.state.tensorInfo.get(t.dataId);e.refCount<=1?("complex64"!==t.dtype&&(this.state.numBytes-=e.bytes),this.state.numDataBuffers--,e.backend.disposeData(t.dataId),this.state.tensorInfo.delete(t.dataId)):this.state.tensorInfo.get(t.dataId).refCount--}},t.prototype.disposeVariables=function(){for(var t in this.state.registeredVariables){var e=this.state.registeredVariables[t];this.disposeVariable(e)}},t.prototype.disposeVariable=function(t){this.disposeTensor(t),null!=this.state.registeredVariables[t.name]&&delete this.state.registeredVariables[t.name]},t.prototype.memory=function(){var t=this.backend.memory();return t.numTensors=this.state.numTensors,t.numDataBuffers=this.state.numDataBuffers,t.numBytes=this.state.numBytes,this.state.numStringTensors>0&&(t.unreliable=!0,null==t.reasons&&(t.reasons=[]),t.reasons.push("Memory usage by string tensors is approximate (2 bytes per character)")),t},t.prototype.profile=function(t){return u(this,void 0,void 0,(function(){var e,n;return c(this,(function(r){return this.state.profiling=!0,e=this.state.numBytes,n=this.state.numTensors,this.state.activeProfile.kernels=[],this.state.activeProfile.result=t(),this.state.profiling=!1,this.state.activeProfile.peakBytes=Math.max.apply(Math,this.state.activeProfile.kernels.map((function(t){return t.totalBytesSnapshot}))),this.state.activeProfile.newBytes=this.state.numBytes-e,this.state.activeProfile.newTensors=this.state.numTensors-n,[2,this.state.activeProfile]}))}))},t.prototype.isTapeOn=function(){return this.state.gradientDepth>0&&0===this.state.kernelDepth},t.prototype.addTapeNode=function(t,e,n,r,o){var i=this,a={id:this.state.nextTapeNodeId++,kernelName:t,inputs:e,outputs:n,saved:o},s=function(t){return v.get(t)}(t);null!=s&&(r=s.gradFunc),null!=r&&(a.gradient=function(t){return t=t.map((function(t,e){if(null==t){var r=n[e],o=rt(r.size,r.dtype);return i.makeTensor(o,r.shape,r.dtype)}return t})),r(t.length>1?t:t[0],o)}),this.state.activeTape.push(a)},t.prototype.keep=function(t){return t.kept=!0,t},t.prototype.startTape=function(){0===this.state.gradientDepth&&(this.state.activeTape=[]),this.state.gradientDepth++},t.prototype.endTape=function(){this.state.gradientDepth--},t.prototype.startScope=function(t){var e={track:[],name:"unnamed scope",id:this.state.nextScopeId++};t&&(e.name=t),this.state.scopeStack.push(e),this.state.activeScope=e},t.prototype.endScope=function(t){for(var e=this,n=Tt(t),r=new Set(n.map((function(t){return t.id}))),o=0;o<this.state.activeScope.track.length;o++){var i=this.state.activeScope.track[o];i.kept||r.has(i.id)||i.dispose()}var a=this.state.scopeStack.pop();this.state.activeScope=0===this.state.scopeStack.length?null:this.state.scopeStack[this.state.scopeStack.length-1],n.forEach((function(t){t.kept||t.scopeId!==a.id||e.track(t)}))},t.prototype.gradients=function(t,e,n,r){var o=this;if(void 0===r&&(r=!1),I(e.length>0,(function(){return"gradients() received an empty list of xs."})),null!=n&&"float32"!==n.dtype)throw new Error("dy must have 'float32' dtype, but has '"+n.dtype+"'");var i=this.scopedRun((function(){return o.startTape()}),(function(){return o.endTape()}),(function(){return o.tidy("forward",t)}));I(i instanceof xt,(function(){return"The result y returned by f() must be a tensor."}));var a=function(t,e,n){for(var r={},o={},i=0;i<e.length;i++)r[e[i].id]=!0;for(i=0;i<t.length;i++){var a=(d=t[i]).inputs;for(var s in a){for(var u=a[s],c=!1,l=0;l<e.length;l++)if(r[u.id]){d.outputs.forEach((function(t){return r[t.id]=!0})),c=!0,o[d.id]=!0;break}if(c)break}}var h={};h[n.id]=!0;var f={};for(i=t.length-1;i>=0;i--)for(a=(d=t[i]).inputs,l=0;l<d.outputs.length;l++)if(h[d.outputs[l].id]){for(var s in a)h[a[s].id]=!0,f[d.id]=!0;break}var p=[];for(i=0;i<t.length;i++){var d;if(o[(d=t[i]).id]&&f[d.id]){var v={};for(var s in d.inputs){var m=d.inputs[s];r[m.id]&&(v[s]=m)}var g=Object.assign({},d);g.inputs=v,g.outputs=d.outputs,p.push(g)}}return p}(this.state.activeTape,e,i);if(!r&&0===a.length&&e.length>0)throw new Error("Cannot compute gradient of y=f(x) with respect to x. Make sure that the f you passed encloses all operations that lead from x to y.");return this.tidy("backward",(function(){var t,r,s={};s[i.id]=null==n?(r=nt(D(t=i.shape),"float32"),Ot.makeTensor(r,t,"float32")):n,function(t,e,n){for(var r=function(r){var o=e[r],i=[];if(o.outputs.forEach((function(e){var n=t[e.id];null!=n?i.push(n):i.push(null)})),null==o.gradient)throw new Error("Cannot compute gradient: gradient function not found for "+o.kernelName+".");var a=o.gradient(i),s=function(e){if(!(e in a))throw new Error("Cannot backprop through input "+e+". Available gradients found: "+Object.keys(a)+".");var r=n((function(){return a[e]()}));if("float32"!==r.dtype)throw new Error("Error in gradient for op "+o.kernelName+". The gradient of input "+e+" must have 'float32' dtype, but has '"+r.dtype+"'");var i=o.inputs[e];if(!A(r.shape,i.shape))throw new Error("Error in gradient for op "+o.kernelName+". 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Ro(t,e,n,r){var o=[];t.forEach((function(t){var e=D(t.shapeInfo.logicalShape);t.shapeInfo.isUniform?o.push("uniform float "+t.name+(e>1?"["+e+"]":"")+";"):(o.push("uniform sampler2D "+t.name+";"),o.push("uniform int offset"+t.name+";"))}));var i,a,s=o.join("\n"),u=t.map((function(t){return function(t,e,n){void 0===n&&(n=!1);var r="";r+=n?ko(t):So(t);var o=t.shapeInfo.logicalShape,i=e.logicalShape;return o.length<=i.length&&(r+=n?function(t,e){var n,r=t.name,o=r.charAt(0).toUpperCase()+r.slice(1),i="get"+o+"AtOutCoords",a=t.shapeInfo.logicalShape.length,s=e.logicalShape.length,u=Pr(t.shapeInfo.logicalShape,e.logicalShape),c=Oo(s),l=s-a,h=["x","y","z","w","u","v"];n=0===a?"":s<2&&u.length>=1?"coords = 0;":u.map((function(t){return"coords."+h[t+l]+" = 0;"})).join("\n");var f;f=s<2&&a>0?"coords":t.shapeInfo.logicalShape.map((function(t,e){return"coords."+h[e+l]})).join(", ");var p="return 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return ivec2(resultUV.yx * vec2("+e[0]+", "+e[1]+"));\n      }\n    ":1===t[1]?"\n      ivec2 getOutputCoords() {\n        ivec2 resTexRC = ivec2(resultUV.yx *\n                               vec2("+e[0]+", "+e[1]+"));\n        int index = resTexRC.x * "+e[1]+" + resTexRC.y;\n        return ivec2(index, 0);\n      }\n    ":1===t[0]?"\n      ivec2 getOutputCoords() {\n        ivec2 resTexRC = ivec2(resultUV.yx *\n                               vec2("+e[0]+", "+e[1]+"));\n        int index = resTexRC.x * "+e[1]+" + resTexRC.y;\n        return ivec2(0, index);\n      }\n    ":"\n    ivec2 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+e[0]+", "+e[1]+"));\n      int index = resTexRC.x * "+e[1]+" + resTexRC.y;\n      int r = index / "+t[1]+";\n      int c = index - r * "+t[1]+";\n      return ivec2(r, c);\n    }\n  "}(t,e);case 3:return n=e,r=Eo(["r","c","d"],t),"\n    ivec3 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+n[0]+", "+n[1]+"));\n      int index = resTexRC.x * "+n[1]+" + resTexRC.y;\n      "+r+"\n      return ivec3(r, c, d);\n    }\n  ";case 4:return function(t,e){var n=Eo(["r","c","d","d2"],t);return"\n    ivec4 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n        vec2("+e[0]+", "+e[1]+"));\n      int index = resTexRC.x * "+e[1]+" + resTexRC.y;\n      "+n+"\n      return ivec4(r, c, d, d2);\n    }\n  "}(t,e);case 5:return function(t,e){var n=Eo(["r","c","d","d2","d3"],t);return"\n    ivec5 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx * vec2("+e[0]+",\n                             "+e[1]+"));\n\n      int index = resTexRC.x * "+e[1]+" + resTexRC.y;\n\n      "+n+"\n\n      ivec5 outShape = ivec5(r, c, d, d2, d3);\n      return outShape;\n    }\n  "}(t,e);case 6:return function(t,e){var n=Eo(["r","c","d","d2","d3","d4"],t);return"\n    ivec6 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n        vec2("+e[0]+", "+e[1]+"));\n      int index = resTexRC.x * "+e[1]+" + resTexRC.y;\n\n      "+n+"\n\n      ivec6 result = ivec6(r, c, d, d2, d3, d4);\n      return result;\n    }\n  "}(t,e);default:throw new Error(t.length+"-D output sampling is not yet supported")}var n,r}(e.logicalShape,c),a=function(t){return"\n    void setOutput(float val) {\n      "+t.output+" = vec4(val, 0, 0, 0);\n    }\n  "}(l)),r&&(f+=No),[f,h,a,s,i,u,n].join("\n")}function So(t){var e=t.shapeInfo.logicalShape;switch(e.length){case 0:return function(t){var e=t.name,n="get"+e.charAt(0).toUpperCase()+e.slice(1);if(t.shapeInfo.isUniform)return"float "+n+"() {return "+e+";}";var r=t.shapeInfo.texShape,o=r[0],i=r[1];if(1===o&&1===i)return"\n      float "+n+"() {\n        return sampleTexture("+e+", halfCR);\n      }\n    ";var a=t.shapeInfo.texShape;return"\n    float "+n+"() {\n      vec2 uv = uvFromFlat("+a[0]+", "+a[1]+", "+Fo(e)+");\n      return sampleTexture("+e+", uv);\n    }\n  "}(t);case 1:return function(t){var e=t.name,n="get"+e.charAt(0).toUpperCase()+e.slice(1);if(t.shapeInfo.isUniform)return"\n      float "+n+"(int index) {\n        "+Mo(t)+"\n      }\n    ";var r=t.shapeInfo.texShape,o=r[0],i=r[1];if(1===i&&1===o)return"\n      float "+n+"(int index) {\n        return sampleTexture("+e+", halfCR);\n      }\n    ";var a=Fo(e);return 1===i?"\n      float "+n+"(int index) {\n        vec2 uv = vec2(0.5, (float(index + "+a+") + 0.5) / "+o+".0);\n        return sampleTexture("+e+", uv);\n      }\n    ":1===o?"\n      float "+n+"(int index) {\n        vec2 uv = vec2((float(index + "+a+") + 0.5) / "+i+".0, 0.5);\n        return sampleTexture("+e+", uv);\n      }\n    ":"\n    float "+n+"(int index) {\n      vec2 uv = uvFromFlat("+o+", "+i+", index + "+a+");\n      return sampleTexture("+e+", uv);\n    }\n  "}(t);case 2:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=t.shapeInfo.texShape;if(null!=o&&A(e,o)){var i=o[0];return"\n    float "+r+"(int row, int col) {\n      vec2 uv = (vec2(col, row) + halfCR) / vec2("+o[1]+".0, "+i+".0);\n      return sampleTexture("+n+", uv);\n    }\n  "}var a=L(e),s=a.newShape,u=a.keptDims,c=s;if(c.length<e.length)return"\n      "+So(Po(t,c))+"\n      float "+r+"(int row, int col) {\n        return "+r+"("+Bo(["row","col"],u)+");\n      }\n    ";if(t.shapeInfo.isUniform)return"\n      float "+r+"(int row, int col) {\n        int index = round(dot(vec2(row, col), vec2("+e[1]+", 1)));\n        "+Mo(t)+"\n      }\n    ";var l=o[0],h=o[1],f=Fo(n);return 1===h?"\n    float "+r+"(int row, int col) {\n      float index = dot(vec3(row, col, "+f+"), vec3("+e[1]+", 1, 1));\n      vec2 uv = vec2(0.5, (index + 0.5) / "+l+".0);\n      return sampleTexture("+n+", uv);\n    }\n  ":1===l?"\n    float "+r+"(int row, int col) {\n      float index = dot(vec3(row, col, "+f+"), vec3("+e[1]+", 1, 1));\n      vec2 uv = vec2((index + 0.5) / "+h+".0, 0.5);\n      return sampleTexture("+n+", uv);\n    }\n  ":"\n  float "+r+"(int row, int col) {\n    // Explicitly use integer operations as dot() only works on floats.\n    int index = row * "+e[1]+" + col + "+f+";\n    vec2 uv = uvFromFlat("+l+", "+h+", index);\n    return sampleTexture("+n+", uv);\n  }\n"}(t);case 3:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=e[1]*e[2],i=e[2],a=L(e),s=a.newShape,u=a.keptDims,c=s;if(c.length<e.length)return"\n        "+So(Po(t,c))+"\n        float "+r+"(int row, int col, int depth) {\n          return "+r+"("+Bo(["row","col","depth"],u)+");\n        }\n      ";if(t.shapeInfo.isUniform)return"\n      float "+r+"(int row, int col, int depth) {\n        int index = round(dot(vec3(row, col, depth),\n                          vec3("+o+", "+i+", 1)));\n        "+Mo(t)+"\n      }\n    ";var l=t.shapeInfo.texShape,h=l[0],f=l[1],p=t.shapeInfo.flatOffset;return f===o&&null==p?"\n        float "+r+"(int row, int col, int depth) {\n          float texR = float(row);\n          float texC = dot(vec2(col, depth), vec2("+i+", 1));\n          vec2 uv = (vec2(texC, texR) + halfCR) /\n                     vec2("+f+".0, "+h+".0);\n          return sampleTexture("+n+", uv);\n        }\n      ":f===i&&null==p?"\n    float "+r+"(int row, int col, int depth) {\n      float texR = dot(vec2(row, col), vec2("+e[1]+", 1));\n      float texC = float(depth);\n      vec2 uv = (vec2(texC, texR) + halfCR) / vec2("+f+".0, "+h+".0);\n      return sampleTexture("+n+", uv);\n    }\n  ":"\n      float "+r+"(int row, int col, int depth) {\n        // Explicitly use integer operations as dot() only works on floats.\n        int index = row * "+o+" + col * "+i+" + depth + "+Fo(n)+";\n        vec2 uv = uvFromFlat("+h+", "+f+", index);\n        return sampleTexture("+n+", uv);\n      }\n  "}(t);case 4:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=e[3],i=e[2]*o,a=e[1]*i,s=L(e),u=s.newShape,c=s.keptDims;if(u.length<e.length)return"\n      "+So(Po(t,u))+"\n      float "+r+"(int row, int col, int depth, int depth2) {\n        return "+r+"("+Bo(["row","col","depth","depth2"],c)+");\n      }\n    ";if(t.shapeInfo.isUniform)return"\n      float "+r+"(int row, int col, int depth, int depth2) {\n        int index = round(dot(vec4(row, col, depth, depth2),\n                          vec4("+a+", "+i+", "+o+", 1)));\n        "+Mo(t)+"\n      }\n    ";var l=t.shapeInfo.flatOffset,h=t.shapeInfo.texShape,f=h[0],p=h[1];return p===a&&null==l?"\n      float "+r+"(int row, int col, int depth, int depth2) {\n        float texR = float(row);\n        float texC =\n            dot(vec3(col, depth, depth2),\n                vec3("+i+", "+o+", 1));\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                   vec2("+p+".0, "+f+".0);\n        return sampleTexture("+n+", uv);\n      }\n    ":p===o&&null==l?"\n      float "+r+"(int row, int col, int depth, int depth2) {\n        float texR = dot(vec3(row, col, depth),\n                         vec3("+e[1]*e[2]+", "+e[2]+", 1));\n        float texC = float(depth2);\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                  vec2("+p+".0, "+f+".0);\n        return sampleTexture("+n+", uv);\n      }\n    ":"\n    float "+r+"(int row, int col, int depth, int depth2) {\n      // Explicitly use integer operations as dot() only works on floats.\n      int index = row * "+a+" + col * "+i+" +\n          depth * "+o+" + depth2;\n      vec2 uv = uvFromFlat("+f+", "+p+", index + "+Fo(n)+");\n      return sampleTexture("+n+", uv);\n    }\n  "}(t);case 5:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=e[4],i=e[3]*o,a=e[2]*i,s=e[1]*a,u=L(e),c=u.newShape,l=u.keptDims;if(c.length<e.length)return"\n      "+So(Po(t,c))+"\n      float "+r+"(int row, int col, int depth, int depth2, int depth3) {\n        return "+r+"("+Bo(["row","col","depth","depth2","depth3"],l)+");\n      }\n    ";if(t.shapeInfo.isUniform)return"\n      float "+r+"(int row, int col, int depth, int depth2, int depth3) {\n        float index = dot(\n          vec4(row, col, depth, depth2),\n          vec4("+s+", "+a+", "+i+", "+o+")) +\n          depth3;\n        "+Mo(t)+"\n      }\n    ";var h=t.shapeInfo.flatOffset,f=t.shapeInfo.texShape,p=f[0],d=f[1];return d===s&&null==h?"\n      float "+r+"(int row, int col, int depth, int depth2, int depth3) {\n        int texR = row;\n        float texC = dot(vec4(col, depth, depth2, depth3),\n                         vec4("+a+", "+i+", "+o+", 1));\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                   vec2("+d+".0, "+p+".0);\n        return sampleTexture("+n+", uv);\n      }\n    ":d===o&&null==h?"\n      float "+r+"(int row, int col, int depth, int depth2, int depth3) {\n        float texR = dot(\n          vec4(row, col, depth, depth2),\n          vec4("+e[1]*e[2]*e[3]+",\n               "+e[2]*e[3]+", "+e[3]+", 1));\n        int texC = depth3;\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                  vec2("+d+".0, "+p+".0);\n        return sampleTexture("+n+", uv);\n      }\n    ":"\n    float "+r+"(int row, int col, int depth, int depth2, int depth3) {\n      // Explicitly use integer operations as dot() only works on floats.\n      int index = row * "+s+" + col * "+a+" + depth * "+i+" +\n          depth2 * "+o+" + depth3 + "+Fo(n)+";\n      vec2 uv = uvFromFlat("+p+", "+d+", index);\n      return sampleTexture("+n+", uv);\n    }\n  "}(t);case 6:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=L(e),i=o.newShape,a=o.keptDims;if(i.length<e.length)return"\n      "+So(Po(t,i))+"\n      float "+r+"(int row, int col, int depth,\n                    int depth2, int depth3, int depth4) {\n        return "+r+"("+Bo(["row","col","depth","depth2","depth3","depth4"],a)+");\n      }\n    ";var s=e[5],u=e[4]*s,c=e[3]*u,l=e[2]*c,h=e[1]*l;if(t.shapeInfo.isUniform)return"\n      float "+r+"(int row, int col, int depth,\n                  int depth2, int depth3, int depth4) {\n        int index = round(dot(\n          vec4(row, col, depth, depth2),\n          vec4("+h+", "+l+", "+c+", "+u+")) +\n          dot(\n            vec2(depth3, depth4),\n            vec2("+s+", 1)));\n        "+Mo(t)+"\n      }\n    ";var f=t.shapeInfo.flatOffset,p=t.shapeInfo.texShape,d=p[0],v=p[1];return v===h&&null==f?"\n      float "+r+"(int row, int col, int depth,\n                    int depth2, int depth3, int depth4) {\n        int texR = row;\n        float texC = dot(vec4(col, depth, depth2, depth3),\n          vec4("+l+", "+c+", "+u+", "+s+")) +\n               float(depth4);\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                   vec2("+v+".0, "+d+".0);\n        return sampleTexture("+n+", uv);\n      }\n    ":v===s&&null==f?"\n      float "+r+"(int row, int col, int depth,\n                    int depth2, int depth3, int depth4) {\n        float texR = dot(vec4(row, col, depth, depth2),\n          vec4("+e[1]*e[2]*e[3]*e[4]+",\n               "+e[2]*e[3]*e[4]+",\n               "+e[3]*e[4]+",\n               "+e[4]+")) + float(depth3);\n        int texC = depth4;\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                  vec2("+v+".0, "+d+".0);\n        return sampleTexture("+n+", uv);\n      }\n    ":"\n    float "+r+"(int row, int col, int depth,\n                  int depth2, int depth3, int depth4) {\n      // Explicitly use integer operations as dot() only works on floats.\n      int index = row * "+h+" + col * "+l+" + depth * "+c+" +\n          depth2 * "+u+" + depth3 * "+s+" + depth4 + "+Fo(n)+";\n      vec2 uv = uvFromFlat("+d+", "+v+", index);\n      return sampleTexture("+n+", uv);\n    }\n  "}(t);default:throw new Error(e.length+"-D input sampling is not yet supported")}}function ko(t){var e;switch(t.shapeInfo.logicalShape.length){case 0:return"\n    vec4 "+("get"+(e=t.name).charAt(0).toUpperCase()+e.slice(1))+"() {\n      return "+Co().texture2D+"("+e+", halfCR);\n    }\n  ";case 1:return function(t){var e=t.name,n="get"+e.charAt(0).toUpperCase()+e.slice(1),r=t.shapeInfo.texShape,o=[Math.ceil(r[0]/2),Math.ceil(r[1]/2)],i=Co();return"\n    vec4 "+n+"(int index) {\n      vec2 uv = packedUVfrom1D(\n        "+o[0]+", "+o[1]+", index);\n      return "+i.texture2D+"("+e+", uv);\n    }\n  "}(t);case 2:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=t.shapeInfo.texShape,i=o[0],a=o[1],s=Co();if(null!=o&&A(e,o))return"\n      vec4 "+r+"(int row, int col) {\n        vec2 uv = (vec2(col, row) + halfCR) / vec2("+a+".0, "+i+".0);\n\n        return "+s.texture2D+"("+n+", uv);\n      }\n    ";var u=[Math.ceil(o[0]/2),Math.ceil(o[1]/2)];return"\n    vec4 "+r+"(int row, int col) {\n      vec2 uv = packedUVfrom2D("+Math.ceil(e[1]/2)+", "+u[0]+", "+u[1]+", row, col);\n      return "+s.texture2D+"("+n+", uv);\n    }\n  "}(t);case 3:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=t.shapeInfo.texShape,i=[Math.ceil(o[0]/2),Math.ceil(o[1]/2)];if(1===e[0])return"\n        "+ko(Po(t,e.slice(1)))+"\n        vec4 "+r+"(int b, int row, int col) {\n          return "+r+"("+Bo(["b","row","col"],[1,2])+");\n        }\n      ";var a=i[0],s=i[1],u=Math.ceil(e[2]/2);return"\n    vec4 "+r+"(int b, int row, int col) {\n      vec2 uv = packedUVfrom3D(\n        "+a+", "+s+", "+u*Math.ceil(e[1]/2)+", "+u+", b, row, col);\n      return "+Co().texture2D+"("+n+", uv);\n    }\n  "}(t);default:return function(t){for(var e=t.shapeInfo.logicalShape,n=e.length,r=t.name,o="get"+r.charAt(0).toUpperCase()+r.slice(1),i=t.shapeInfo.texShape,a=[Math.ceil(i[0]/2),Math.ceil(i[1]/2)],s=a[0],u=a[1],c=Math.ceil(e[n-1]/2),l=c*Math.ceil(e[n-2]/2),h="int b, int row, int col",f="b * "+l+" + (row / 2) * "+c+" + (col / 2)",p=2;p<n-1;p++)h="int b"+p+", "+h,f="b"+p+" * "+(l*=e[n-p-1])+" + "+f;return"\n    vec4 "+o+"("+h+") {\n      int index = "+f+";\n      int texR = index / "+u+";\n      int texC = index - texR * "+u+";\n      vec2 uv = (vec2(texC, texR) + halfCR) / vec2("+u+", "+s+");\n      return "+Co().texture2D+"("+r+", uv);\n    }\n  "}(t)}}var Do="\nvec2 uvFromFlat(int texNumR, int texNumC, int index) {\n  int texR = index / texNumC;\n  int texC = index - texR * texNumC;\n  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);\n}\nvec2 packedUVfrom1D(int texNumR, int texNumC, int index) {\n  int texelIndex = index / 2;\n  int texR = texelIndex / texNumC;\n  int texC = texelIndex - texR * texNumC;\n  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);\n}\n",Ao="\nvec2 packedUVfrom2D(int texelsInLogicalRow, int texNumR,\n  int texNumC, int row, int col) {\n  int texelIndex = (row / 2) * texelsInLogicalRow + (col / 2);\n  int texR = texelIndex / texNumC;\n  int texC = texelIndex - texR * texNumC;\n  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);\n}\n",To="\nvec2 packedUVfrom3D(int texNumR, int texNumC,\n    int texelsInBatch, int texelsInLogicalRow, int b,\n    int row, int col) {\n  int index = b * texelsInBatch + (row / 2) * texelsInLogicalRow + (col / 2);\n  int texR = index / texNumC;\n  int texC = index - texR * texNumC;\n  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);\n}\n",No="\n  float getChannel(vec4 frag, vec2 innerDims) {\n    vec2 modCoord = mod(innerDims, 2.);\n    return modCoord.x == 0. ?\n      (modCoord.y == 0. ? frag.r : frag.g) :\n      (modCoord.y == 0. ? frag.b : frag.a);\n  }\n  float getChannel(vec4 frag, int dim) {\n    float modCoord = mod(float(dim), 2.);\n    return modCoord == 0. ? frag.r : frag.g;\n  }\n";function Fo(t){return"offset"+t}function Mo(t){var e=t.name,n=D(t.shapeInfo.logicalShape);return n<2?"return "+e+";":"\n    for (int i = 0; i < "+n+"; i++) {\n      if (i == index) {\n        return "+e+"[i];\n      }\n    }\n  "}function Oo(t){if(t<=1)return"int";if(2===t)return"ivec2";if(3===t)return"ivec3";if(4===t)return"ivec4";if(5===t)return"ivec5";if(6===t)return"ivec6";throw Error("GPU for rank "+t+" is not yet supported")}function Po(t,e){var n=JSON.parse(JSON.stringify(t));return n.shapeInfo.logicalShape=e,n}function Bo(t,e){return e.map((function(e){return t[e]})).join(", ")}var Lo=function(t,e,n,r){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,I(t.length>2,(function(){return"Packed arg"+(n.charAt(0).toUpperCase()+n.slice(1))+" supports only inputs with rank above 2."}));var o=t[t.length-1],i=Math.ceil(o/e);this.outputShape=t.slice(0,-1),i>1&&this.outputShape.push(i),r||this.variableNames.push("bestIndicesA");var a,s,u=this.outputShape,c=u.length,l=Oo(c),h=wo("coords",c);if(1===i){var f=Oo(s=c+1);a="\n        "+f+" sourceLocR = "+f+"("+h.join()+", 0);\n        ++"+h[c-1]+";\n        "+f+" sourceLocG = "+f+"("+h.join()+", 0);\n        ++"+h[c-2]+";\n        "+f+" sourceLocA = "+f+"("+h.join()+", 0);\n        --"+h[c-1]+";\n        "+f+" sourceLocB = "+f+"("+h.join()+", 0);\n        --"+h[c-2]+";"}else s=c,a="\n        "+l+" sourceLocR = coords;\n        ++"+h[c-1]+";\n        "+l+" sourceLocG = coords;\n        ++"+h[c-2]+";\n        "+l+" sourceLocA = coords;\n        --"+h[c-1]+";\n        "+l+" sourceLocB = coords;\n        --"+h[c-2]+";";var p=["x","y","z","w","u","v"].slice(0,s),d="."+p[s-1],v=p.map((function(t){return"int "+t})),m=wo("sourceLocR",s-1).concat("inIdx.r"),g=wo("sourceLocG",s-1).concat("inIdx.g"),y=wo("sourceLocB",s-1).concat("inIdx.b"),x=wo("sourceLocA",s-1).concat("inIdx.a"),b="max"===n?"greaterThan":"lessThan",w=r?"":"\n          inIdx = round(vec4(getBestIndicesAChannel("+m.join()+"),\n                             getBestIndicesAChannel("+g.join()+"),\n                             getBestIndicesAChannel("+y.join()+"),\n                             getBestIndicesAChannel("+x.join()+")));",C="vec4(\n            getAChannel("+m.join()+"),\n            hasNextCol ? getAChannel("+g.join()+") : 0.,\n            hasNextRow ? getAChannel("+y.join()+") : 0.,\n            hasNextRow && hasNextCol ? getAChannel("+x.join()+") : 0.)",E=r?"":"\n      float getBestIndicesAChannel("+v.join()+") {\n        return getChannel(getBestIndicesA("+p.join()+"),\n                                          vec2("+p.slice(-2).join()+"));\n      }";this.userCode="\n      float getAChannel("+v.join()+") {\n        return getChannel(getA("+p.join()+"),\n                               vec2("+p.slice(-2).join()+"));\n      }\n      "+E+"\n      void main() {\n        "+l+" coords = getOutputCoords();\n        bool hasNextCol = "+h[c-1]+" < "+(u[c-1]-1)+";\n        bool hasNextRow = "+h[c-2]+" < "+(u[c-2]-1)+";\n        "+a+"\n        ivec4 srcIdx = ivec4(sourceLocR"+d+", sourceLocG"+d+",\n          sourceLocB"+d+", sourceLocA"+d+") * "+e+";\n        ivec4 inIdx = srcIdx;\n        vec4 bestIndex = vec4(inIdx);\n        vec4 bestValue = "+C+";\n\n        for (int i = 0; i < "+e+"; i++) {\n          inIdx = srcIdx;\n          "+w+"\n          vec4 candidate = "+C+";\n          bvec4 nan = isnan(candidate);\n          bvec4 replace = bvec4(\n            vec4("+b+"(candidate, bestValue)) * (vec4(1.0) - vec4(nan)));\n\n          bestValue = vec4(replace.x  ? candidate.x : bestValue.x,\n                           replace.y  ? candidate.y : bestValue.y,\n                           replace.z  ? candidate.z : bestValue.z,\n                           replace.w  ? candidate.w : bestValue.w);\n          bestIndex = mix(bestIndex, vec4(inIdx), vec4(replace));\n          srcIdx++;\n        }\n        setOutput(bestIndex);\n      }\n    "},Wo=function(t){this.variableNames=["dy"],this.outputShape=t.inShape;var e=t.filterHeight,n=t.filterWidth,r=t.strideHeight,o=t.strideWidth,i=t.dilationHeight,a=t.dilationWidth,s=t.effectiveFilterHeight,u=t.effectiveFilterWidth,c=s-1-t.padInfo.top,l=u-1-t.padInfo.left,h=1/(e*n);this.userCode="\n      const ivec2 pads = ivec2("+c+", "+l+");\n      const float avgMultiplier = float("+h+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n\n        ivec2 dyRCCorner = coords.yz - pads;\n        int dyRCorner = dyRCCorner.x;\n        int dyCCorner = dyRCCorner.y;\n\n        // Convolve dy(?, ?, d) with pos mask(:, :, d) to get dx(xR, xC, d).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n        for (int wR = 0; wR < "+s+";\n            wR += "+i+") {\n          float dyR = float(dyRCorner + wR) / "+r+".0;\n\n          if (dyR < 0.0 || dyR >= "+t.outHeight+".0 || fract(dyR) > 0.0) {\n            continue;\n          }\n          int idyR = int(dyR);\n\n          for (int wC = 0; wC < "+u+";\n            wC+= "+a+") {\n            float dyC = float(dyCCorner + wC) / "+o+".0;\n\n            if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n                fract(dyC) > 0.0) {\n              continue;\n            }\n            int idyC = int(dyC);\n\n            float dyValue = getDy(b, idyR, idyC, d);\n\n            dotProd += dyValue * avgMultiplier;\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},zo=function(t){this.variableNames=["dy"],this.outputShape=t.inShape;var e=t.filterDepth,n=t.filterHeight,r=t.filterWidth,o=t.strideDepth,i=t.strideHeight,a=t.strideWidth,s=t.dilationDepth,u=t.dilationHeight,c=t.dilationWidth,l=t.effectiveFilterDepth,h=t.effectiveFilterHeight,f=t.effectiveFilterWidth,p=l-1-t.padInfo.front,d=h-1-t.padInfo.top,v=f-1-t.padInfo.left,m=1/(e*n*r);this.userCode="\n      const ivec3 pads = ivec3("+p+", "+d+", "+v+");\n      const float avgMultiplier = float("+m+");\n\n      void main() {\n        ivec5 coords = getOutputCoords();\n        int batch = coords.x;\n        int ch = coords.u;\n\n        ivec3 dyCorner = ivec3(coords.y, coords.z, coords.w) - pads;\n        int dyDCorner = dyCorner.x;\n        int dyRCorner = dyCorner.y;\n        int dyCCorner = dyCorner.z;\n\n        // Convolve dy(?, ?, ?, d) with pos mask(:, :, :, ch) to get\n        // dx(xD, xR, xC, ch).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n\n        for (int wD = 0; wD < "+l+";\n            wD += "+s+") {\n          float dyD = float(dyDCorner + wD) / "+o+".0;\n\n          if (dyD < 0.0 || dyD >= "+t.outDepth+".0 || fract(dyD) > 0.0) {\n            continue;\n          }\n          int idyD = int(dyD);\n\n          for (int wR = 0; wR < "+h+";\n              wR += "+u+") {\n            float dyR = float(dyRCorner + wR) / "+i+".0;\n\n            if (dyR < 0.0 || dyR >= "+t.outHeight+".0 ||\n                fract(dyR) > 0.0) {\n              continue;\n            }\n            int idyR = int(dyR);\n\n            for (int wC = 0; wC < "+f+";\n                wC += "+c+") {\n              float dyC = float(dyCCorner + wC) / "+a+".0;\n\n              if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n                  fract(dyC) > 0.0) {\n                continue;\n              }\n              int idyC = int(dyC);\n\n              float dyValue = getDy(batch, idyD, idyR, idyC, ch);\n\n              dotProd += dyValue * avgMultiplier;\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},Uo=function(t,e,n,r,o,i){this.outputShape=[],this.variableNames=["x","mean","variance"],Lr(t,e),Lr(t,n);var a="0.0";null!=r&&(Lr(t,r),this.variableNames.push("offset"),a="getOffsetAtOutCoords()");var s="1.0";null!=o&&(Lr(t,o),this.variableNames.push("scale"),s="getScaleAtOutCoords()"),this.outputShape=t,this.userCode="\n      void main() {\n        float x = getXAtOutCoords();\n        float mean = getMeanAtOutCoords();\n        float variance = getVarianceAtOutCoords();\n        float offset = "+a+";\n        float scale = "+s+";\n        float inv = scale * inversesqrt(variance + float("+i+"));\n        setOutput(dot(vec3(x, -mean, offset), vec3(inv, inv, 1)));\n      }\n    "},Vo=function(t,e,n,r,o,i){this.packedInputs=!0,this.packedOutput=!0,this.variableNames=["x","mean","variance"],Lr(t,e),Lr(t,n);var a="vec4(0.0)";null!=r&&(Lr(t,r),this.variableNames.push("offset"),a="getOffsetAtOutCoords()");var s="vec4(1.0)";null!=o&&(Lr(t,o),this.variableNames.push("scale"),s="getScaleAtOutCoords()"),this.outputShape=t,this.userCode="\n      void main() {\n        vec4 offset = "+a+";\n        vec4 scale = "+s+";\n\n        vec4 x = getXAtOutCoords();\n        vec4 mean = getMeanAtOutCoords();\n        vec4 variance = getVarianceAtOutCoords();\n\n        vec4 inv = scale * inversesqrt(variance + vec4("+i+"));\n\n        setOutput((x - mean) * inv + offset);\n      }\n    "},Go=function(t,e,n){this.variableNames=["AReal","AImag","BReal","BImag"],this.outputShape=Lr(e,n),this.userCode="\n      float binaryOpComplex(\n          float areal, float aimag, float breal, float bimag) {\n        "+t+"\n      }\n\n      void main() {\n        float areal = getARealAtOutCoords();\n        float aimag = getAImagAtOutCoords();\n        float breal = getBRealAtOutCoords();\n        float bimag = getBImagAtOutCoords();\n        setOutput(binaryOpComplex(areal, aimag, breal, bimag));\n      }\n    "},Ho="return a + b;",jo="return a - b;",qo="return a * b;",Ko="return (a < 0.) ? b * a : a;",Xo=function(t,e,n){this.variableNames=["A","B"],this.outputShape=Lr(e,n),this.userCode="\n      float binaryOperation(float a, float b) {\n        "+t+"\n      }\n\n      void main() {\n        float a = getAAtOutCoords();\n        float b = getBAtOutCoords();\n        setOutput(binaryOperation(a, b));\n      }\n    "},$o="\n  vec4 aLessThanZero = vec4(lessThan(a, vec4(0.)));\n  return (aLessThanZero * (b * a)) + ((vec4(1.0) - aLessThanZero) * a);\n",Yo=function(t,e,n,r){void 0===r&&(r=!1),this.variableNames=["A","B"],this.supportsBroadcasting=!0,this.packedInputs=!0,this.packedOutput=!0,this.outputShape=Lr(e,n);var o=this.outputShape.length,i="";if(r)if(0===o||1===D(this.outputShape))i="\n          result.y = 0.;\n          result.z = 0.;\n          result.w = 0.;\n        ";else if(i="\n          "+Oo(o)+" coords = getOutputCoords();\n        ",1===o)i+="\n            result.y = (coords + 1) >= "+this.outputShape[0]+" ? 0. : result.y;\n            result.z = 0.;\n            result.w = 0.;\n          ";else{var a=wo("coords",o);i+="\n            bool nextRowOutOfBounds =\n              ("+a[o-2]+" + 1) >= "+this.outputShape[o-2]+";\n            bool nextColOutOfBounds =\n              ("+a[o-1]+" + 1) >= "+this.outputShape[o-1]+";\n            result.y = nextColOutOfBounds ? 0. : result.y;\n            result.z = nextRowOutOfBounds ? 0. : result.z;\n            result.w = nextColOutOfBounds || nextRowOutOfBounds ? 0. : result.w;\n          "}this.userCode="\n      vec4 binaryOperation(vec4 a, vec4 b) {\n        "+t+"\n      }\n\n      void main() {\n        vec4 a = getAAtOutCoords();\n        vec4 b = getBAtOutCoords();\n\n        vec4 result = binaryOperation(a, b);\n        "+i+"\n\n        setOutput(result);\n      }\n    "},Jo=function(){function t(t){this.variableNames=["A"],this.outputShape=t,this.userCode="\n      uniform float minVal;\n      uniform float maxVal;\n\n      void main() {\n        float value = getAAtOutCoords();\n        if (isnan(value)) {\n          setOutput(value);\n          return;\n        }\n\n        setOutput(clamp(value, minVal, maxVal));\n      }\n    "}return t.prototype.getCustomSetupFunc=function(t,e){var n=this;return function(r,o){null==n.minLoc&&(n.minLoc=r.getUniformLocationNoThrow(o,"minVal"),n.maxLoc=r.getUniformLocationNoThrow(o,"maxVal")),r.gl.uniform1f(n.minLoc,t),r.gl.uniform1f(n.maxLoc,e)}},t}(),Qo=function(){function t(t){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t,this.userCode="\n      uniform float minVal;\n      uniform float maxVal;\n\n      void main() {\n        vec4 value = getAAtOutCoords();\n\n        if (any(isnan(value))) {\n          setOutput(value);\n          return;\n        }\n\n        setOutput(clamp(value, vec4(minVal), vec4(maxVal)));\n      }\n    "}return t.prototype.getCustomSetupFunc=function(t,e){var n=this;return function(r,o){null==n.minLoc&&(n.minLoc=r.getUniformLocationNoThrow(o,"minVal"),n.maxLoc=r.getUniformLocationNoThrow(o,"maxVal")),r.gl.uniform1f(n.minLoc,t),r.gl.uniform1f(n.maxLoc,e)}},t}(),Zo=function(t){this.variableNames=["real","imag"],this.outputShape=t,this.userCode="\n      void main() {\n        float re = abs(getRealAtOutCoords());\n        float im = abs(getImagAtOutCoords());\n        float mx = max(re, im);\n\n        // sadly the length function in glsl is not underflow-safe\n        // (at least not on Intel GPUs). So the safe solution is\n        // to ensure underflow-safety in all cases.\n        setOutput(\n          mx == 0.0 ? 0.0 : mx * length(vec2(1, min(re, im)/mx))\n        );\n      }\n    "},ti=function(t){this.outputShape=[],this.outputShape=rn(t,1),this.variableNames=t.map((function(t,e){return"T"+e}));var e=new Array(t.length-1);e[0]=t[0][1];for(var n=1;n<e.length;n++)e[n]=e[n-1]+t[n][1];var r=["if (yC < "+e[0]+") setOutput(getT0(yR, yC));"];for(n=1;n<e.length;n++){var o=e[n-1];r.push("else if (yC < "+e[n]+") setOutput(getT"+n+"(yR, yC-"+o+"));")}var i=e.length,a=e[e.length-1];r.push("else setOutput(getT"+i+"(yR, yC-"+a+"));"),this.userCode="\n      void main() {\n        ivec2 coords = getOutputCoords();\n        int yR = coords.x;\n        int yC = coords.y;\n\n        "+r.join("\n        ")+"\n      }\n    "},ei=function(t,e){this.packedInputs=!0,this.packedOutput=!0,this.outputShape=[],this.outputShape=rn(t,e);var n=this.outputShape,r=n.length,o=Oo(r),i=wo("coords",r),a=["x","y","z","w","u","v"].slice(0,r);this.variableNames=t.map((function(t,e){return"T"+e}));var s=new Array(t.length-1);s[0]=t[0][e];for(var u=1;u<s.length;u++)s[u]=s[u-1]+t[u][e];var c=a[e],l=a.slice(-2),h=a.join(),f="if ("+c+" < "+s[0]+") {\n        return getChannel(\n            getT0("+h+"), vec2("+l.join()+"));\n        }";for(u=1;u<s.length;u++){var p=s[u-1];f+="\n        if ("+c+" < "+s[u]+"  && "+c+" >= "+s[u-1]+") {\n          return getChannel(\n            getT"+u+"("+ni(a,c,p)+"),\n            vec2("+ni(l,c,p)+"));\n        }"}var d=s.length,v=s[s.length-1];f+="\n        return getChannel(\n          getT"+d+"("+ni(a,c,v)+"),\n          vec2("+ni(l,c,v)+"));",this.userCode="\n      float getValue("+a.map((function(t){return"int "+t}))+") {\n        "+f+"\n      }\n\n      void main() {\n        "+o+" coords = getOutputCoords();\n        vec4 result = vec4(getValue("+i+"), 0., 0., 0.);\n\n        "+i[r-1]+" = "+i[r-1]+" + 1;\n        if ("+i[r-1]+" < "+n[r-1]+") {\n          result.g = getValue("+i+");\n        }\n\n        "+i[r-2]+" = "+i[r-2]+" + 1;\n        if ("+i[r-2]+" < "+n[r-2]+") {\n          result.a = getValue("+i+");\n        }\n\n        "+i[r-1]+" = "+i[r-1]+" - 1;\n        if ("+i[r-2]+" < "+n[r-2]+" &&\n            "+i[r-1]+" < "+n[r-1]+") {\n          result.b = getValue("+i+");\n        }\n        setOutput(result);\n      }\n    "};function ni(t,e,n){var r=t.indexOf(e);return t.map((function(t,e){return e===r?t+" - "+n:t})).join()}var ri=function(t){this.variableNames=["x","dy"],this.outputShape=t.filterShape;var e=t.strideHeight,n=t.strideWidth,r=t.padInfo.top,o=t.padInfo.left,i="channelsLast"===t.dataFormat;this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int wR = coords.x;\n        int wC = coords.y;\n        int d1 = coords.z;\n        int d2 = coords.w;\n\n        // Convolve x(?, ?, d1) with dy(:, :, d2) to get dw(wR, wC, d1, d2).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n\n        for (int b = 0; b < "+t.batchSize+"; b++) {\n          for (int yR = 0; yR < "+t.outHeight+"; yR++) {\n            int xR = wR + yR * "+e+" - "+r+";\n\n            if (xR < 0 || xR >= "+t.inHeight+") {\n              continue;\n            }\n\n            for (int yC = 0; yC < "+t.outWidth+"; yC++) {\n              int xC = wC + yC * "+n+" - "+o+";\n\n              if (xC < 0 || xC >= "+t.inWidth+") {\n                continue;\n              }\n\n              if ("+i+") {\n                float dyValue = getDy(b, yR, yC, d2);\n                float xValue = getX(b, xR, xC, d1);\n                dotProd += (xValue * dyValue);\n              } else {\n                float dyValue = getDy(b, d2, yR, yC);\n                float xValue = getX(b, d1, xR, xC);\n                dotProd += (xValue * dyValue);\n              }\n\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},oi=function(t){this.variableNames=["dy","W"],this.outputShape=t.inShape;var e=t.filterHeight,n=t.filterWidth,r=t.strideHeight,o=t.strideWidth,i="channelsLast"===t.dataFormat,a=e-1-t.padInfo.top,s=n-1-t.padInfo.left,u=i?1:2,c=i?2:3,l=i?3:1;this.userCode="\n      const ivec2 pads = ivec2("+a+", "+s+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int batch = coords[0];\n        int d1 = coords["+l+"];\n\n        ivec2 dyCorner = ivec2(coords["+u+"], coords["+c+"]) - pads;\n        int dyRCorner = dyCorner.x;\n        int dyCCorner = dyCorner.y;\n\n        // Convolve dy(?, ?, d2) with w(:, :, d1, d2) to compute dx(xR, xC, d1).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n        for (int wR = 0; wR < "+e+"; wR++) {\n          float dyR = float(dyRCorner + wR) / "+r+".0;\n\n          if (dyR < 0.0 || dyR >= "+t.outHeight+".0 || fract(dyR) > 0.0) {\n            continue;\n          }\n          int idyR = int(dyR);\n\n          int wRPerm = "+e+" - 1 - wR;\n\n          for (int wC = 0; wC < "+n+"; wC++) {\n            float dyC = float(dyCCorner + wC) / "+o+".0;\n\n            if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n                fract(dyC) > 0.0) {\n              continue;\n            }\n            int idyC = int(dyC);\n\n            int wCPerm = "+n+" - 1 - wC;\n\n            for (int d2 = 0; d2 < "+t.outChannels+"; d2++) {\n\n              if ("+i+") {\n                float xValue = getDy(batch, idyR, idyC, d2);\n                float wValue = getW(wRPerm, wCPerm, d1, d2);\n                dotProd += xValue * wValue;\n              } else {\n                float xValue = getDy(batch, d2, idyR, idyC);\n                float wValue = getW(wRPerm, wCPerm, d1, d2);\n                dotProd += xValue * wValue;\n              }\n\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},ii=function(t){this.variableNames=["x","dy"],this.outputShape=t.filterShape;var e=t.strideDepth,n=t.strideHeight,r=t.strideWidth,o=t.padInfo.front,i=t.padInfo.top,a=t.padInfo.left;this.userCode="\n      void main() {\n        ivec5 coords = getOutputCoords();\n        int wF = coords.x;\n        int wR = coords.y;\n        int wC = coords.z;\n        int d1 = coords.w;\n        int d2 = coords.u;\n\n        float dotProd = 0.0;\n\n        for (int b = 0; b < "+t.batchSize+"; b++) {\n          for (int yF = 0; yF < "+t.outDepth+"; yF++) {\n            int xF = wF + yF * "+e+" - "+o+";\n\n            if (xF < 0 || xF >= "+t.inDepth+") {\n              continue;\n            }\n\n            for (int yR = 0; yR < "+t.outHeight+"; yR++) {\n              int xR = wR + yR * "+n+" - "+i+";\n\n              if (xR < 0 || xR >= "+t.inHeight+") {\n                continue;\n              }\n\n              for (int yC = 0; yC < "+t.outWidth+"; yC++) {\n                int xC = wC + yC * "+r+" - "+a+";\n\n                if (xC < 0 || xC >= "+t.inWidth+") {\n                  continue;\n                }\n\n                float dyValue = getDy(b, yF, yR, yC, d2);\n                float xValue = getX(b, xF, xR, xC, d1);\n                dotProd += (xValue * dyValue);\n              }\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},ai=function(t){this.variableNames=["dy","W"],this.outputShape=t.inShape;var e=t.filterDepth,n=t.filterHeight,r=t.filterWidth,o=t.strideDepth,i=t.strideHeight,a=t.strideWidth,s=e-1-t.padInfo.front,u=n-1-t.padInfo.top,c=r-1-t.padInfo.left;this.userCode="\n      const ivec3 pads = ivec3("+s+", "+u+", "+c+");\n\n      void main() {\n        ivec5 coords = getOutputCoords();\n        int batch = coords.x;\n        int d1 = coords.u;\n\n\n        ivec3 dyCorner = ivec3(coords.y, coords.z, coords.w) - pads;\n        int dyFCorner = dyCorner.x;\n        int dyRCorner = dyCorner.y;\n        int dyCCorner = dyCorner.z;\n\n        float dotProd = 0.0;\n        for (int wF = 0; wF < "+e+"; wF++) {\n          float dyF = float(dyFCorner + wF) / "+o+".0;\n\n          if (dyF < 0.0 || dyF >= "+t.outDepth+".0 || fract(dyF) > 0.0) {\n            continue;\n          }\n          int idyF = int(dyF);\n\n          int wFPerm = "+e+" - 1 - wF;\n\n          for (int wR = 0; wR < "+n+"; wR++) {\n            float dyR = float(dyRCorner + wR) / "+i+".0;\n\n            if (dyR < 0.0 || dyR >= "+t.outHeight+".0 ||\n              fract(dyR) > 0.0) {\n              continue;\n            }\n            int idyR = int(dyR);\n\n            int wRPerm = "+n+" - 1 - wR;\n\n            for (int wC = 0; wC < "+r+"; wC++) {\n              float dyC = float(dyCCorner + wC) / "+a+".0;\n\n              if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n                  fract(dyC) > 0.0) {\n                continue;\n              }\n              int idyC = int(dyC);\n\n              int wCPerm = "+r+" - 1 - wC;\n\n              for (int d2 = 0; d2 < "+t.outChannels+"; d2++) {\n                float xValue = getDy(batch, idyF, idyR, idyC, d2);\n                float wValue = getW(wFPerm, wRPerm, wCPerm, d1, d2);\n                dotProd += xValue * wValue;\n              }\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},si=function(t){this.variableNames=["x","dy"],this.outputShape=t.filterShape;var e=t.strideHeight,n=t.strideWidth,r=t.padInfo.top,o=t.padInfo.left,i=t.outChannels/t.inChannels;this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int wR = coords.x;\n        int wC = coords.y;\n        int d1 = coords.z;\n        int dm = coords.w;\n        int d2 = d1 * "+i+" + dm;\n\n        float dotProd = 0.0;\n\n        // TO DO: Vec4 over the batch size\n        for (int b = 0; b < "+t.batchSize+"; b++) {\n          for (int yR = 0; yR < "+t.outHeight+"; yR++) {\n            int xR = wR + yR * "+e+" - "+r+";\n\n            if (xR < 0 || xR >= "+t.inHeight+") {\n              continue;\n            }\n\n            for (int yC = 0; yC < "+t.outWidth+"; yC++) {\n              int xC = wC + yC * "+n+" - "+o+";\n\n              if (xC < 0 || xC >= "+t.inWidth+") {\n                continue;\n              }\n\n              float dyValue = getDy(b, yR, yC, d2);\n              float xValue = getX(b, xR, xC, d1);\n              dotProd += (xValue * dyValue);\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},ui=function(t){this.variableNames=["dy","W"],this.outputShape=t.inShape;var e=t.filterHeight,n=t.filterWidth,r=t.strideHeight,o=t.strideWidth,i=e-1-t.padInfo.top,a=n-1-t.padInfo.left,s=t.outChannels/t.inChannels;this.userCode="\n      const ivec2 pads = ivec2("+i+", "+a+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int batch = coords[0];\n        int d1 = coords[3];\n        ivec2 dyCorner = coords.yz - pads;\n        int dyRCorner = dyCorner.x;\n        int dyCCorner = dyCorner.y;\n\n        float dotProd = 0.0;\n\n        for (int wR = 0; wR < "+e+"; wR++) {\n          float dyR = float(dyRCorner + wR) / "+r+".0;\n\n          if (dyR < 0.0 || dyR >= "+t.outHeight+".0 || fract(dyR) > 0.0) {\n            continue;\n          }\n          int idyR = int(dyR);\n\n          int wRPerm = "+e+" - 1 - wR;\n\n          for (int wC = 0; wC < "+n+"; wC++) {\n            float dyC = float(dyCCorner + wC) / "+o+".0;\n\n            if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n                fract(dyC) > 0.0) {\n              continue;\n            }\n            int idyC = int(dyC);\n\n            int wCPerm = "+n+" - 1 - wC;\n\n            // TO DO: Vec4 over the channelMul\n            for (int dm = 0; dm < "+s+"; dm++) {\n              int d2 = d1 * "+s+" + dm;\n              float xValue = getDy(batch, idyR, idyC, d2);\n              float wValue = getW(wRPerm, wCPerm, d1, dm);\n              dotProd += xValue * wValue;\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},ci=function(t,e,n,r){void 0===e&&(e=!1),void 0===n&&(n=null),void 0===r&&(r=!1),this.variableNames=["x","W"],this.outputShape=t.outShape;var o=t.padInfo.top,i=t.padInfo.left,a=t.strideHeight,s=t.strideWidth,u=t.dilationHeight,c=t.dilationWidth,l=t.filterHeight,h=t.filterWidth,f=4*Math.floor(t.inChannels/4),p=t.inChannels%4,d="channelsLast"===t.dataFormat,v=d?1:2,m=d?2:3,g=d?3:1,y="",x="";n&&(y=r?"float activation(float a) {\n          float b = getPreluActivationWeightsAtOutCoords();\n          "+n+"\n        }":"\n          float activation(float x) {\n            "+n+"\n          }\n        ",x="result = activation(result);");var b=e?"result += getBiasAtOutCoords();":"";e&&this.variableNames.push("bias"),r&&this.variableNames.push("preluActivationWeights"),this.userCode="\n      "+y+"\n\n      const ivec2 strides = ivec2("+a+", "+s+");\n      const ivec2 pads = ivec2("+o+", "+i+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int batch = coords[0];\n        int d2 = coords["+g+"];\n\n        ivec2 xRCCorner =\n            ivec2(coords["+v+"], coords["+m+"]) * strides - pads;\n        int xRCorner = xRCCorner.x;\n        int xCCorner = xRCCorner.y;\n\n        // Convolve x(?, ?, d1) with w(:, :, d1, d2) to get y(yR, yC, d2).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n        for (int wR = 0; wR < "+l+"; wR++) {\n          int xR = xRCorner + wR * "+u+";\n\n          if (xR < 0 || xR >= "+t.inHeight+") {\n            continue;\n          }\n\n          for (int wC = 0; wC < "+h+"; wC++) {\n            int xC = xCCorner + wC * "+c+";\n\n            if (xC < 0 || xC >= "+t.inWidth+") {\n              continue;\n            }\n\n            for (int d1 = 0; d1 < "+f+"; d1 += 4) {\n              vec4 wValues = vec4(\n                getW(wR, wC, d1, d2),\n                getW(wR, wC, d1 + 1, d2),\n                getW(wR, wC, d1 + 2, d2),\n                getW(wR, wC, d1 + 3, d2)\n              );\n\n              if ("+d+") {\n                vec4 xValues = vec4(\n                  getX(batch, xR, xC, d1),\n                  getX(batch, xR, xC, d1 + 1),\n                  getX(batch, xR, xC, d1 + 2),\n                  getX(batch, xR, xC, d1 + 3)\n                );\n                dotProd += dot(xValues, wValues);\n              } else {\n                vec4 xValues = vec4(\n                  getX(batch, d1, xR, xC),\n                  getX(batch, d1 + 1, xR, xC),\n                  getX(batch, d1 + 2, xR, xC),\n                  getX(batch, d1 + 3, xR, xC)\n                );\n                dotProd += dot(xValues, wValues);\n              }\n            }\n\n            if ("+(1===p)+") {\n\n              if ("+d+") {\n                dotProd +=\n                    getX(batch, xR, xC, "+f+") *\n                    getW(wR, wC, "+f+", d2);\n              } else {\n                dotProd +=\n                    getX(batch, "+f+", xR, xC) *\n                    getW(wR, wC, "+f+", d2);\n              }\n\n            } else if ("+(2===p)+") {\n              vec2 wValues = vec2(\n                getW(wR, wC, "+f+", d2),\n                getW(wR, wC, "+f+" + 1, d2)\n              );\n\n              if ("+d+") {\n                vec2 xValues = vec2(\n                  getX(batch, xR, xC, "+f+"),\n                  getX(batch, xR, xC, "+f+" + 1)\n                );\n                dotProd += dot(xValues, wValues);\n              } else {\n                vec2 xValues = vec2(\n                  getX(batch, "+f+", xR, xC),\n                  getX(batch, "+f+" + 1, xR, xC)\n                );\n                dotProd += dot(xValues, wValues);\n              }\n\n            } else if ("+(3===p)+") {\n              vec3 wValues = vec3(\n                getW(wR, wC, "+f+", d2),\n                getW(wR, wC, "+f+" + 1, d2),\n                getW(wR, wC, "+f+" + 2, d2)\n              );\n\n              if ("+d+") {\n                vec3 xValues = vec3(\n                  getX(batch, xR, xC, "+f+"),\n                  getX(batch, xR, xC, "+f+" + 1),\n                  getX(batch, xR, xC, "+f+" + 2)\n                );\n                dotProd += dot(xValues, wValues);\n              } else {\n                vec3 xValues = vec3(\n                  getX(batch, "+f+", xR, xC),\n                  getX(batch, "+f+" + 1, xR, xC),\n                  getX(batch, "+f+" + 2, xR, xC)\n                );\n                dotProd += dot(xValues, wValues);\n              }\n\n            }\n          }\n        }\n\n        float result = dotProd;\n        "+b+"\n        "+x+"\n        setOutput(result);\n      }\n    "},li=function(t){this.variableNames=["x","W"],this.outputShape=t.outShape;var e=t.padInfo.front,n=t.padInfo.top,r=t.padInfo.left,o=t.strideDepth,i=t.strideHeight,a=t.strideWidth,s=t.dilationDepth,u=t.dilationHeight,c=t.dilationWidth,l=t.filterDepth,h=t.filterHeight,f=t.filterWidth,p=4*Math.floor(t.inChannels/4),d=t.inChannels%4;this.userCode="\n      const ivec3 strides = ivec3("+o+", "+i+", "+a+");\n      const ivec3 pads = ivec3("+e+", "+n+", "+r+");\n\n      void main() {\n        ivec5 coords = getOutputCoords();\n        int batch = coords.x;\n        int d2 = coords.u;\n\n        ivec3 xFRCCorner = ivec3(coords.y, coords.z, coords.w) * strides - pads;\n        int xFCorner = xFRCCorner.x;\n        int xRCorner = xFRCCorner.y;\n        int xCCorner = xFRCCorner.z;\n\n        // Convolve x(?, ?, ?, d1) with w(:, :, :, d1, d2) to get\n        // y(yF, yR, yC, d2). ? = to be determined. : = across all\n        // values in that axis.\n        float dotProd = 0.0;\n        for (int wF = 0; wF < "+l+"; wF++) {\n          int xF = xFCorner + wF * "+s+";\n\n          if (xF < 0 || xF >= "+t.inDepth+") {\n            continue;\n          }\n\n          for (int wR = 0; wR < "+h+"; wR++) {\n            int xR = xRCorner + wR * "+u+";\n\n            if (xR < 0 || xR >= "+t.inHeight+") {\n              continue;\n            }\n\n            for (int wC = 0; wC < "+f+"; wC++) {\n              int xC = xCCorner + wC * "+c+";\n\n              if (xC < 0 || xC >= "+t.inWidth+") {\n                continue;\n              }\n\n              for (int d1 = 0; d1 < "+p+"; d1 += 4) {\n                vec4 xValues = vec4(\n                  getX(batch, xF, xR, xC, d1),\n                  getX(batch, xF, xR, xC, d1 + 1),\n                  getX(batch, xF, xR, xC, d1 + 2),\n                  getX(batch, xF, xR, xC, d1 + 3)\n                );\n                vec4 wValues = vec4(\n                  getW(wF, wR, wC, d1, d2),\n                  getW(wF, wR, wC, d1 + 1, d2),\n                  getW(wF, wR, wC, d1 + 2, d2),\n                  getW(wF, wR, wC, d1 + 3, d2)\n                );\n\n                dotProd += dot(xValues, wValues);\n              }\n\n              if ("+(1===d)+") {\n                dotProd +=\n                  getX(batch, xF, xR, xC, "+p+") *\n                  getW(wF, wR, wC, "+p+", d2);\n              } else if ("+(2===d)+") {\n                vec2 xValues = vec2(\n                  getX(batch, xF, xR, xC, "+p+"),\n                  getX(batch, xF, xR, xC, "+p+" + 1)\n                );\n                vec2 wValues = vec2(\n                  getW(wF, wR, wC, "+p+", d2),\n                  getW(wF, wR, wC, "+p+" + 1, d2)\n                );\n                dotProd += dot(xValues, wValues);\n              } else if ("+(3===d)+") {\n                vec3 xValues = vec3(\n                  getX(batch, xF, xR, xC, "+p+"),\n                  getX(batch, xF, xR, xC, "+p+" + 1),\n                  getX(batch, xF, xR, xC, "+p+" + 2)\n                );\n                vec3 wValues = vec3(\n                  getW(wF, wR, wC, "+p+", d2),\n                  getW(wF, wR, wC, "+p+" + 1, d2),\n                  getW(wF, wR, wC, "+p+" + 2, d2)\n                );\n                dotProd += dot(xValues, wValues);\n              }\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},hi=function(t,e,n,r){void 0===e&&(e=!1),void 0===n&&(n=null),void 0===r&&(r=!1),this.variableNames=["x","W"],this.outputShape=t.outShape;var o=t.inHeight,i=t.inWidth,a=t.padInfo.top,s=t.padInfo.left,u=t.strideHeight,c=t.strideWidth,l=t.dilationHeight,h=t.dilationWidth,f=t.filterHeight,p=t.filterWidth,d=t.outChannels/t.inChannels,v="",m="";n&&(v=r?"float activation(float a) {\n          float b = getPreluActivationWeightsAtOutCoords();\n          "+n+"\n        }":"\n          float activation(float x) {\n            "+n+"\n          }\n        ",m="result = activation(result);");var g=e?"result += getBiasAtOutCoords();":"";e&&this.variableNames.push("bias"),r&&this.variableNames.push("preluActivationWeights"),this.userCode="\n      "+v+"\n\n      const ivec2 strides = ivec2("+u+", "+c+");\n      const ivec2 pads = ivec2("+a+", "+s+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int batch = coords.x;\n        ivec2 xRCCorner = coords.yz * strides - pads;\n        int d2 = coords.w;\n        int d1 = d2 / "+d+";\n        int q = d2 - d1 * "+d+";\n\n        int xRCorner = xRCCorner.x;\n        int xCCorner = xRCCorner.y;\n\n        // Convolve x(?, ?, d1) with w(:, :, d1, q) to get y(yR, yC, d2).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n        // TO DO(dsmilkov): Flatten the two for loops and vec4 the operations.\n        for (int wR = 0; wR < "+f+"; wR++) {\n          int xR = xRCorner + wR * "+l+";\n\n          if (xR < 0 || xR >= "+o+") {\n            continue;\n          }\n\n          for (int wC = 0; wC < "+p+"; wC++) {\n            int xC = xCCorner + wC * "+h+";\n\n            if (xC < 0 || xC >= "+i+") {\n              continue;\n            }\n\n            float xVal = getX(batch, xR, xC, d1);\n            float wVal = getW(wR, wC, d1, q);\n            dotProd += xVal * wVal;\n          }\n        }\n\n        float result = dotProd;\n        "+g+"\n        "+m+"\n        setOutput(result);\n      }\n    "},fi=function(t,e,n,r){void 0===e&&(e=!1),void 0===n&&(n=null),void 0===r&&(r=!1),this.variableNames=["x","W"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t.outShape;for(var o=t.inHeight,i=t.inWidth,a=t.padInfo.top,s=t.padInfo.left,u=t.strideHeight,c=t.strideWidth,l=t.dilationHeight,h=t.dilationWidth,f=t.filterHeight,p=t.filterWidth,d=p,v="int xR; int xC; int xCOffset;",m=0;m<f;m++)for(var g=0;g<p;g++)v+="\n          vec4 xTexelR"+m+"C"+2*g+" = vec4(0.);\n          vec4 wR"+m+"C"+g+" = vec4(0.);\n          vec4 xR"+m+"C"+g+" = vec4(0.);";for(m=0;m<f;m++)for(var y=0;y<d;y++){if(v+="\n          xR = xRCorner + "+m*l+";\n          xC = xCCorner + "+(g=2*y)*h+";\n        ",1===c){if(g<p&&(v+=s%2==1?"\n                xCOffset = xC + 1;\n                if(xR >= 0 && xR < "+o+" && xCOffset >= 0 && xCOffset < "+i+") {\n                  xTexelR"+m+"C"+g+" = getX(batch, xR, xCOffset, d1);\n\n                  // Need to manually clear unused channels in case\n                  // we're reading from recycled texture.\n                  if(xCOffset + 1 >= "+i+") {\n                    xTexelR"+m+"C"+g+".zw = vec2(0.);\n                  }\n                } else {\n                  xTexelR"+m+"C"+g+" = vec4(0.);\n                }\n\n                xCOffset = xC + 1 - 2;\n                if(xR >= 0 && xR < "+o+" && xCOffset >= 0 && xCOffset < "+i+") {\n                  vec4 previous = getX(batch, xR, xCOffset, d1);\n\n                  // Need to manually clear unused channels in case\n                  // we're reading from recycled texture.\n                  if(xCOffset + 1 >= "+i+") {\n                    previous.zw = vec2(0.);\n                  }\n\n                  xR"+m+"C"+g+" = vec4(previous.zw, xTexelR"+m+"C"+g+".xy);\n                } else {\n                  xR"+m+"C"+g+" = vec4(0, 0, xTexelR"+m+"C"+g+".xy);\n                }\n              ":"\n                if(xR >= 0 && xR < "+o+" && xC >= 0 && xC < "+i+") {\n                  xTexelR"+m+"C"+g+" = getX(batch, xR, xC, d1);\n                } else {\n                  xTexelR"+m+"C"+g+" = vec4(0.);\n                }\n\n                xR"+m+"C"+g+" = xTexelR"+m+"C"+g+";\n              ",g+1<p)){var x=s%2==0?E(h):h;h%2==0&&s%2==1||h%2!=0&&s%2!=1?(v+="\n                  xCOffset = xC + "+s%2+" + "+x+";\n\n                  if(xR >= 0 && xR < "+o+" &&\n                    xCOffset >= 0 && xCOffset < "+i+") {\n                    xTexelR"+m+"C"+(g+2)+" = getX(batch, xR, xCOffset, d1);\n                  }\n                ",h>1&&(v+="\n                    xCOffset -= 2;\n                    if(xR >= 0 && xR < "+o+" &&\n                      xCOffset >= 0 && xCOffset < "+i+") {\n                      xTexelR"+m+"C"+g+" = getX(batch, xR, xCOffset, d1);\n                    } else {\n                      xTexelR"+m+"C"+g+" = vec4(0.);\n                    }\n                  "),v+="\n                  xR"+m+"C"+(g+1)+" = vec4(\n                    xTexelR"+m+"C"+g+".zw, xTexelR"+m+"C"+(g+2)+".xy);\n                "):v+="\n                  xCOffset = xC + "+x+";\n\n                  if(xR >= 0 && xR < "+o+" &&\n                    xCOffset >= 0 && xCOffset < "+i+") {\n                    xTexelR"+m+"C"+(g+2)+" = getX(batch, xR, xCOffset, d1);\n                  }\n\n                  xR"+m+"C"+(g+1)+" = xTexelR"+m+"C"+(g+2)+";\n                "}}else g<p&&(v+="\n              if(xR >= 0 && xR < "+o+") {\n            ",s%2==1?(v+="\n                xCOffset = xC + 1 - "+c+";\n                if(xCOffset >= 0 && xCOffset < "+i+") {\n                  xTexelR"+m+"C"+g+" = getX(batch, xR, xCOffset, d1);\n                } else {\n                  xTexelR"+m+"C"+g+" = vec4(0.);\n                }\n\n                if(xC + 1 >= 0 && xC + 1 < "+i+") {\n                  xTexelR"+m+"C"+(g+2)+" = getX(batch, xR, xC + 1, d1);\n                } else {\n                  xTexelR"+m+"C"+(g+2)+" = vec4(0.);\n                }\n\n                xR"+m+"C"+g+" = vec4(\n                  xTexelR"+m+"C"+g+".zw, xTexelR"+m+"C"+(g+2)+".zw);\n              ",g+1<p&&(v+="\n                  vec4 final = vec4(0.);\n                  xCOffset = xC + 1 + "+c+";\n                  if(xCOffset >= 0 && xCOffset < "+i+") {\n                    final = getX(batch, xR, xCOffset, d1);\n                  }\n                  xR"+m+"C"+(g+1)+" = vec4(xTexelR"+m+"C"+(g+2)+".xy, final.xy);\n                ")):(v+="\n                if(xC >= 0 && xC < "+i+") {\n                  xTexelR"+m+"C"+g+" = getX(batch, xR, xC, d1);\n                } else {\n                  xTexelR"+m+"C"+g+" = vec4(0.);\n                }\n\n                xCOffset = xC + "+c+";\n                if(xCOffset >= 0 && xCOffset < "+i+") {\n                  xTexelR"+m+"C"+(g+2)+" = getX(batch, xR, xCOffset, d1);\n                } else {\n                  xTexelR"+m+"C"+(g+2)+" = vec4(0.);\n                }\n\n                xR"+m+"C"+g+" = vec4(\n                  xTexelR"+m+"C"+g+".xy, xTexelR"+m+"C"+(g+2)+".xy);\n              ",g+1<p&&(v+="\n                  xR"+m+"C"+(g+1)+" = vec4(\n                    xTexelR"+m+"C"+g+".zw, xTexelR"+m+"C"+(g+2)+".zw);\n                ")),v+="}");g<p&&(v+="\n            vec4 wTexelR"+m+"C"+g+" = getW("+m+", "+g+", d1, q);\n            wR"+m+"C"+g+" = vec4(wTexelR"+m+"C"+g+".xz, wTexelR"+m+"C"+g+".xz);\n          ",g+1<p&&(v+="\n              vec4 wTexelR"+m+"C"+(g+1)+" = getW("+m+", "+(g+1)+", d1, q);\n              wR"+m+"C"+(g+1)+" =\n                vec4(wTexelR"+m+"C"+(g+1)+".xz, wTexelR"+m+"C"+(g+1)+".xz);"))}for(m=0;m<f;m++)for(g=0;g<p;g++)v+="dotProd += xR"+m+"C"+g+" * wR"+m+"C"+g+";";var b="",w="";n&&(b=r?"vec4 activation(vec4 a) {\n          vec4 b = getPreluActivationWeightsAtOutCoords();\n          "+n+"\n        }":"vec4 activation(vec4 x) {\n          "+n+"\n        }",w="result = activation(result);");var C=e?"result += getBiasAtOutCoords();":"";e&&this.variableNames.push("bias"),r&&this.variableNames.push("preluActivationWeights"),this.userCode="\n      "+b+"\n\n      const ivec2 strides = ivec2("+u+", "+c+");\n      const ivec2 pads = ivec2("+a+", "+s+");\n\n      void main() {\n\n        ivec4 coords = getOutputCoords();\n        int batch = coords.x;\n        ivec2 xRCCorner = coords.yz * strides - pads;\n        int d2 = coords.w;\n        int d1 = d2;\n        int q = 0;\n        int xRCorner = xRCCorner.x;\n        int xCCorner = xRCCorner.y;\n\n        vec4 dotProd = vec4(0.);\n\n        "+v+"\n\n        vec4 result = dotProd;\n        "+C+"\n        "+w+"\n        setOutput(result);\n      }\n    "},pi=function(t,e,n,r,o){this.variableNames=["Image","Boxes","BoxInd"],this.outputShape=[];var i=t[0],a=t[1],s=t[2],u=t[3],c=e[0],l=n[0],h=n[1];this.outputShape=[c,l,h,u];var f="bilinear"===r?1:0,p=[a-1+".0",s-1+".0"],d=p[0],v=p[1],m=l>1?[""+(a-1)/(l-1),"(y2-y1) * height_ratio","y1*"+d+" + float(y)*(height_scale)"]:["0.0","0.0","0.5 * (y1+y2) * "+d],g=m[0],y=m[1],x=m[2],b=h>1?[""+(s-1)/(h-1),"(x2-x1) * width_ratio","x1*"+v+" + float(x)*(width_scale)"]:["0.0","0.0","0.5 * (x1+x2) * "+v],w=b[0],C=b[1],E=b[2];this.userCode="\n      const float height_ratio = float("+g+");\n      const float width_ratio = float("+w+");\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int y = coords[1];\n        int x = coords[2];\n        int d = coords[3];\n\n        // get box vals\n        float y1 = getBoxes(b,0);\n        float x1 = getBoxes(b,1);\n        float y2 = getBoxes(b,2);\n        float x2 = getBoxes(b,3);\n\n        // get image in batch index\n        int bInd = round(getBoxInd(b));\n        if(bInd < 0 || bInd >= "+i+") {\n          return;\n        }\n\n        float height_scale = "+y+";\n        float width_scale = "+C+";\n\n        float in_y = "+x+";\n        if( in_y < 0.0 || in_y > "+d+" ) {\n          setOutput(float("+o+"));\n          return;\n        }\n        float in_x = "+E+";\n        if( in_x < 0.0 || in_x > "+v+" ) {\n          setOutput(float("+o+"));\n          return;\n        }\n\n        vec2 sourceFracIndexCR = vec2(in_x,in_y);\n        if("+f+" == 1) {\n          // Compute the four integer indices.\n          ivec2 sourceFloorCR = ivec2(sourceFracIndexCR);\n          ivec2 sourceCeilCR = ivec2(ceil(sourceFracIndexCR));\n\n          float topLeft = getImage(b, sourceFloorCR.y, sourceFloorCR.x, d);\n          float bottomLeft = getImage(b, sourceCeilCR.y, sourceFloorCR.x, d);\n          float topRight = getImage(b, sourceFloorCR.y, sourceCeilCR.x, d);\n          float bottomRight = getImage(b, sourceCeilCR.y, sourceCeilCR.x, d);\n\n          vec2 fracCR = sourceFracIndexCR - vec2(sourceFloorCR);\n\n          float top = topLeft + (topRight - topLeft) * fracCR.x;\n          float bottom = bottomLeft + (bottomRight - bottomLeft) * fracCR.x;\n          float newValue = top + (bottom - top) * fracCR.y;\n          setOutput(newValue);\n        } else {\n          // Compute the coordinators of nearest neighbor point.\n          ivec2 sourceNearestCR = ivec2(floor(\n            sourceFracIndexCR + vec2(0.5,0.5)));\n          float newValue = getImage(b, sourceNearestCR.y, sourceNearestCR.x, d);\n          setOutput(newValue);\n        }\n      }\n    "},di=function(t,e,n){this.variableNames=["x"],this.outputShape=t;var r=t.length,o=t[t.length-1],i=n?"<":">";this.userCode="\n      int getIndex(int i) {\n        "+(n?"return "+o+" -i - 1;":"return i;")+"\n      }\n\n      void main() {\n        "+Oo(r)+" coords = getOutputCoords();\n        int end = "+vi(r,"coords")+";\n        float val = 0.0;\n        for (int i = "+o+" - 1; i >= 0; i -= 1) {\n          int idx = getIndex(i);\n          if (idx "+i+" end) {\n            continue;\n          }\n          if (idx == end && "+e+") {\n            continue;\n          }\n          "+vi(r,"coords")+" = idx;\n          val += getX("+function(t,e){if(1===t)return""+e;if(2===t)return e+".x, "+e+".y";if(3===t)return e+".x, "+e+".y, "+e+".z";if(4===t)return e+".x, "+e+".y, "+e+".z, "+e+".w";throw Error("Cumulative sum for rank "+t+" is not yet supported")}(r,"coords")+");\n        }\n        setOutput(val);\n      }\n    "};function vi(t,e){if(1===t)return""+e;if(2===t)return e+".y";if(3===t)return e+".z";if(4===t)return e+".w";throw Error("Cumulative sum for rank "+t+" is not yet supported")}var mi=function(t){this.variableNames=["A"],this.packedInputs=!1,this.packedOutput=!0,this.outPackingScheme=Lt.DENSE;var e=qt(t),n=Co();this.outputShape=t,this.userCode="\n      ivec3 outCoordsFromFlatIndex(int index) {\n        "+Eo(["r","c","d"],t)+"\n        return ivec3(r, c, d);\n      }\n\n      void main() {\n        ivec2 resTexRC = ivec2(resultUV.yx *\n          vec2("+e[0]+", "+e[1]+"));\n        int index = 4 * (resTexRC.x * "+e[1]+" + resTexRC.y);\n\n        vec4 result = vec4(0.);\n\n        for (int i=0; i<4; i++) {\n          int flatIndex = index + i;\n          ivec3 rc = outCoordsFromFlatIndex(flatIndex);\n          result[i] = getA(rc.x, rc.y, rc.z);\n        }\n\n        "+n.output+" = result;\n      }\n    "},gi=function(t){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outPackingScheme=Lt.DENSE;var e=qt(t),n=Co();this.outputShape=t,this.userCode="\n      ivec3 outCoordsFromFlatIndex(int index) {\n        "+Eo(["r","c","d"],t)+"\n        return ivec3(r, c, d);\n      }\n\n      void main() {\n        ivec2 resTexRC = ivec2(resultUV.yx *\n          vec2("+e[0]+", "+e[1]+"));\n        int index = 4 * (resTexRC.x * "+e[1]+" + resTexRC.y);\n\n        vec4 result = vec4(0.);\n\n        for (int i=0; i<4; i++) {\n          int flatIndex = index + i;\n          ivec3 rc = outCoordsFromFlatIndex(flatIndex);\n          result[i] = getChannel(getA(rc.x, rc.y, rc.z), vec2(rc.y, rc.z));\n        }\n\n        "+n.output+" = result;\n      }\n    "},yi=function(){function t(t,e,n){this.variableNames=["x"],this.outputShape=[],this.outputShape=t,this.blockSize=e,this.dataFormat=n,this.userCode="\n    void main() {\n      ivec4 coords = getOutputCoords();\n      int b = coords[0];\n      int h = "+this.getHeightCoordString()+";\n      int w = "+this.getWidthCoordString()+";\n      int d = "+this.getDepthCoordString()+";\n\n      int in_h = h / "+e+";\n      int offset_h = imod(h, "+e+");\n      int in_w = w / "+e+";\n      int offset_w = imod(w, "+e+");\n      int offset_d = (offset_h * "+e+" + offset_w) *\n        "+this.getOutputDepthSize()+";\n      int in_d = d + offset_d;\n\n      float result = "+this.getInputSamplingString()+";\n      setOutput(result);\n    }\n  "}return t.prototype.getHeightCoordString=function(){return"NHWC"===this.dataFormat?"coords[1]":"coords[2]"},t.prototype.getWidthCoordString=function(){return"NHWC"===this.dataFormat?"coords[2]":"coords[3]"},t.prototype.getDepthCoordString=function(){return"NHWC"===this.dataFormat?"coords[3]":"coords[1]"},t.prototype.getOutputDepthSize=function(){return"NHWC"===this.dataFormat?this.outputShape[3]:this.outputShape[1]},t.prototype.getInputSamplingString=function(){return"NHWC"===this.dataFormat?"getX(b, in_h, in_w, in_d)":"getX(b, in_d, in_h, in_w)"},t}(),xi=function(t){this.variableNames=["X"],this.outputShape=[t,t],this.userCode="\n      void main() {\n          ivec2 coords = getOutputCoords();\n          float val = coords[0] == coords[1] ? getX(coords[0]) : 0.0;\n          setOutput(val);\n      }\n    "},bi=function(t){this.variableNames=["A"],this.outTexUsage=Wt.DOWNLOAD;var e=Co();this.outputShape=t,this.userCode="\n      "+Io+"\n\n      void main() {\n        float x = getAAtOutCoords();\n        "+e.output+" = encode_float(x);\n      }\n    "},wi=function(t){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!1,this.outTexUsage=Wt.DOWNLOAD;var e=Co();this.outputShape=t,this.userCode="\n      "+Io+"\n\n      void main() {\n        ivec3 coords = getOutputCoords();\n        float x = getChannel(getAAtOutCoords(), vec2(coords.y, coords.z));\n        "+e.output+" = encode_float(x);\n      }\n    "},Ci=function(t,e,n){void 0===n&&(n=!1),this.variableNames=["A"];var r=Co(),o=e[0],i=e[1];this.outputShape=t;var a="result";n&&(a="floor(result * 255. + 0.5)"),this.userCode="\n      "+_o(t)+"\n\n      void main() {\n        ivec3 coords = getOutputCoords();\n\n        int flatIndex = getFlatIndex(coords);\n        int offset = imod(flatIndex, 4);\n\n        flatIndex = idiv(flatIndex, 4, 1.);\n        \n        int r = flatIndex / "+i+";\n        int c = imod(flatIndex, "+i+");\n        vec2 uv = (vec2(c, r) + halfCR) / vec2("+i+".0, "+o+".0);\n        vec4 values = "+r.texture2D+"(A, uv);\n\n        float result;\n\n        if(offset == 0) {\n          result = values[0];\n        } else if(offset == 1) {\n          result = values[1];\n        } else if(offset == 2) {\n          result = values[2];\n        } else {\n          result = values[3];\n        }\n\n        "+r.output+" = vec4("+a+", 0., 0., 0.);\n      }\n    "},Ei=function(t,e,n){void 0===n&&(n=!1),this.variableNames=["A"],this.packedInputs=!1,this.packedOutput=!0;var r=Co(),o=e[0],i=e[1];this.outputShape=t;var a="",s="result";n&&(s="floor(result * 255. + 0.5)");for(var u=0;u<=1;u++)for(var c=0;c<=1;c++){var l=2*u+c;a+="\n          localCoords = coords;\n          if(localCoords[2] + "+c+" < "+t[2]+") {\n            localCoords[2] += "+c+";\n            if(localCoords[1] + "+u+" < "+t[1]+") {\n              localCoords[1] += "+u+";\n\n              flatIndex = getFlatIndex(localCoords);\n              offset = imod(flatIndex, 4);\n\n              flatIndex = idiv(flatIndex, 4, 1.);\n\n              r = flatIndex / "+i+";\n              c = imod(flatIndex, "+i+");\n              uv = (vec2(c, r) + halfCR) / vec2("+i+".0, "+o+".0);\n              values = "+r.texture2D+"(A, uv);\n\n              if(offset == 0) {\n                result["+l+"] = values[0];\n              } else if(offset == 1) {\n                result["+l+"] = values[1];\n              } else if(offset == 2) {\n                result["+l+"] = values[2];\n              } else {\n                result["+l+"] = values[3];\n              }\n            }\n          }\n        "}this.userCode="\n      "+_o(t)+"\n\n      void main() {\n        ivec3 coords = getOutputCoords();\n\n        vec4 result = vec4(0.);\n        int flatIndex, r, c, offset;\n        ivec3 localCoords;\n        vec2 uv;\n        vec4 values;\n\n        "+a+"\n\n        "+r.output+" = "+s+";\n      }\n    "},_i=function(t,e,n){this.variableNames=["real","imag"];var r=e[1];this.outputShape=e;var o=n?"2.0 * "+Math.PI:"-2.0 * "+Math.PI,i=n?r+".0":"1.0";this.userCode="\n      const float exponentMultiplier = "+o+";\n\n      float unaryOpComplex(float real, float expR, float imag, float expI) {\n        "+t+"\n      }\n\n      float mulMatDFT(int batch, int index) {\n        float indexRatio = float(index) / float("+r+");\n        float exponentMultiplierTimesIndexRatio =\n            exponentMultiplier * indexRatio;\n\n        float result = 0.0;\n\n        for (int i = 0; i < "+r+"; i++) {\n          // x = (-2|2 * PI / N) * index * i;\n          float x = exponentMultiplierTimesIndexRatio * float(i);\n          float expR = cos(x);\n          float expI = sin(x);\n          float real = getReal(batch, i);\n          float imag = getImag(batch, i);\n\n          result +=\n              unaryOpComplex(real, expR, imag, expI) / "+i+";\n        }\n\n        return result;\n      }\n\n      void main() {\n        ivec2 coords = getOutputCoords();\n        setOutput(mulMatDFT(coords[0], coords[1]));\n      }\n    "},Ii=function(){function t(t,e){this.outputShape=[],this.variableNames=["x"],this.outputShape=t,this.userCode="\n      uniform float value;\n      void main() {\n        // Input can be obtained from uniform value.\n        setOutput(value);\n      }\n    "}return t.prototype.getCustomSetupFunc=function(t){var e=this;return function(n,r){null==e.valueLoc&&(e.valueLoc=n.getUniformLocationNoThrow(r,"value")),n.gl.uniform1f(e.valueLoc,t)}},t}(),Ri=function(t,e,n){this.variableNames=["A","indices"];var r=t.slice();r[n]=e,this.outputShape=r,this.rank=r.length;var o=Oo(this.rank),i=function(t,e){var n=t.length;if(n>4)throw Error("Gather for rank "+n+" is not yet supported");if(1===n)return"int(getIndices(resRC))";for(var r=["resRC.x","resRC.y","resRC.z","resRC.w"],o=[],i=0;i<t.length;i++)i===e?o.push("int(getIndices("+r[i]+"))"):o.push(""+r[i]);return o.join()}(t,n);this.userCode="\n      void main() {\n        "+o+" resRC = getOutputCoords();\n        setOutput(getA("+i+"));\n      }\n    "},Si=function(t,e,n){this.sliceDim=t,this.strides=e,this.variableNames=["x","indices"],this.outputShape=n;var r=Oo(e.length),o=Oo(n.length),i=this.sliceDim>1?"strides[j]":"strides";this.userCode="\n        "+r+" strides = "+r+"("+this.strides+");\n         void main() {\n          "+o+" coords = getOutputCoords();\n          int flattenIndex = 0;\n          for (int j = 0; j < "+this.sliceDim+"; j++) {\n            int index = round(getIndices(coords[0], j));\n            flattenIndex += index * "+i+";\n          }\n          setOutput(getX(flattenIndex, coords[1]));\n        }\n      "};function ki(t,e){var n=Co();return Zt(t,e,n.version+"\n    precision highp float;\n    "+n.attribute+" vec3 clipSpacePos;\n    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Ti(t,e,i[0],i[1],o.internalFormatFloat,o.textureFormatFloat,t.FLOAT)}function Fi(t,e,n,r,o){var i=jt(n,r);return Ti(t,e,i[0],i[1],o.internalFormatHalfFloat,o.textureFormatFloat,o.textureTypeHalfFloat)}function Mi(t,e,n,r,o){var i=jt(n,r);return Ti(t,e,i[0],i[1],t.RGBA,t.RGBA,t.UNSIGNED_BYTE)}function Oi(t,e,n,r,o){var i=Kt(n,r);return Ti(t,e,i[0],i[1],o.internalFormatPackedFloat,t.RGBA,t.FLOAT)}function Pi(t,e,n,r,o){var i=Kt(n,r);return Ti(t,e,i[0],i[1],o.internalFormatPackedHalfFloat,t.RGBA,o.textureTypeHalfFloat)}function Bi(t,e,n,r){return $t(t,e,(function(){return t.bindBuffer(t.ARRAY_BUFFER,r)})),fe(t,e,n,"clipSpacePos",r,3,20,0)&&fe(t,e,n,"uv",r,2,20,12)}function Li(t,e,n,r,o,i,a){var s,u,c;$t(t,e,(function(){return t.bindTexture(t.TEXTURE_2D,n)})),i instanceof Uint8Array?(s=new Uint8Array(r*o*4),u=t.UNSIGNED_BYTE,c=t.RGBA):(s=new Float32Array(r*o*4),u=t.FLOAT,c=a.internalFormatPackedFloat),s.set(i),$t(t,e,(function(){return t.texImage2D(t.TEXTURE_2D,0,c,r,o,0,t.RGBA,u,s)})),$t(t,e,(function(){return t.bindTexture(t.TEXTURE_2D,null)}))}function Wi(t,e,n,r){$t(t,e,(function(){return t.bindTexture(t.TEXTURE_2D,n)})),r.data instanceof Uint8Array?$t(t,e,(function(){return t.texImage2D(t.TEXTURE_2D,0,t.RGBA,r.width,r.height,0,t.RGBA,t.UNSIGNED_BYTE,r.data)})):$t(t,e,(function(){return t.texImage2D(t.TEXTURE_2D,0,t.RGBA,t.RGBA,t.UNSIGNED_BYTE,r)})),$t(t,e,(function(){return t.bindTexture(t.TEXTURE_2D,null)}))}function zi(t,e,n,r,o){var i=t.createBuffer();$t(t,e,(function(){return t.bindBuffer(t.PIXEL_PACK_BUFFER,i)}));var a=16*n*r;return $t(t,e,(function(){return t.bufferData(t.PIXEL_PACK_BUFFER,a,t.STREAM_READ)})),$t(t,e,(function(){return t.readPixels(0,0,r,n,t.RGBA,t.FLOAT,0)})),$t(t,e,(function(){return t.bindBuffer(t.PIXEL_PACK_BUFFER,null)})),i}function Ui(t,e,n){var r=t,o=new Float32Array(n);return r.bindBuffer(r.PIXEL_PACK_BUFFER,e),r.getBufferSubData(r.PIXEL_PACK_BUFFER,0,o),r.bindBuffer(r.PIXEL_PACK_BUFFER,null),o}function Vi(t,e,n,r,o){var i=jt(n,r),a=i[0],s=i[1],u=new Uint8Array(n*r*4);return $t(t,e,(function(){return t.readPixels(0,0,a,s,o.downloadTextureFormat,t.UNSIGNED_BYTE,u)})),new Float32Array(u.buffer)}function Gi(t,e,n,r,o,i,a,s){var u=t,c=new Float32Array(function(t,e){var n=Kt(t,e);return n[0]*n[1]*4}(i,a));return u.bindBuffer(u.PIXEL_PACK_BUFFER,e),u.getBufferSubData(u.PIXEL_PACK_BUFFER,0,c),u.bindBuffer(u.PIXEL_PACK_BUFFER,null),c}function Hi(t,e,n,r){var o=new Float32Array(n*r*4);return $t(t,e,(function(){return t.readPixels(0,0,r,n,t.RGBA,t.FLOAT,o)})),o}var ji=Object.freeze({createVertexShader:ki,createVertexBuffer:Di,createIndexBuffer:Ai,createFloat32MatrixTexture:Ni,createFloat16MatrixTexture:Fi,createUnsignedBytesMatrixTexture:Mi,createPackedMatrixTexture:Oi,createFloat16PackedMatrixTexture:Pi,bindVertexProgramAttributeStreams:Bi,uploadDenseMatrixToTexture:Li,uploadPixelDataToTexture:Wi,createBufferFromOutputTexture:zi,downloadFloat32MatrixFromBuffer:Ui,downloadByteEncodedFloatMatrixFromOutputTexture:Vi,downloadPackedMatrixFromBuffer:Gi,downloadMatrixFromPackedOutputTexture:Hi}),qi=function(){function t(t){this.outputTexture=null,this.program=null,this.disposed=!1,this.vertexAttrsAreBound=!1,this.itemsToPoll=[];var e=f().getNumber("WEBGL_VERSION");null!=t?(this.gl=t,Gt(e,t)):this.gl=Ht(e);var n="WEBGL_color_buffer_float";if(1===f().getNumber("WEBGL_VERSION")){if(this.textureFloatExtension=Qt(this.gl,this.debug,"OES_texture_float"),Ne(this.gl,"OES_texture_half_float"))this.textureHalfFloatExtension=Qt(this.gl,this.debug,"OES_texture_half_float");else if(f().get("WEBGL_FORCE_F16_TEXTURES"))throw new Error("GL context does not support half float textures, yet the environment flag WEBGL_FORCE_F16_TEXTURES is set to true.");if(this.colorBufferFloatExtension=this.gl.getExtension(n),Ne(this.gl,"EXT_color_buffer_half_float"))this.colorBufferHalfFloatExtension=Qt(this.gl,this.debug,"EXT_color_buffer_half_float");else if(f().get("WEBGL_FORCE_F16_TEXTURES"))throw new Error("GL context does not support color renderable half floats, yet the environment flag WEBGL_FORCE_F16_TEXTURES is set to true.")}else if(n="EXT_color_buffer_float",Ne(this.gl,n))this.colorBufferFloatExtension=this.gl.getExtension(n);else{if(!Ne(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=Di(this.gl,this.debug),this.indexBuffer=Ai(this.gl,this.debug),this.framebuffer=he(this.gl,this.debug),this.textureConfig=Xt(this.gl,this.textureHalfFloatExtension)}return Object.defineProperty(t.prototype,"debug",{get:function(){return f().getBool("DEBUG")},enumerable:!0,configurable:!0}),t.prototype.dispose=function(){var t=this;if(!this.disposed){null!=this.program&&console.warn("Disposing a GPGPUContext that still has a bound WebGLProgram. This is probably a resource leak, delete the program with GPGPUContext.deleteProgram before disposing."),null!=this.outputTexture&&console.warn("Disposing a GPGPUContext that still has a bound output matrix texture.  This is probably a resource leak, delete the output matrix texture with GPGPUContext.deleteMatrixTexture before disposing.");var e=this.gl;$t(e,this.debug,(function(){return e.finish()})),$t(e,this.debug,(function(){return e.bindFramebuffer(e.FRAMEBUFFER,null)})),$t(e,this.debug,(function(){return e.deleteFramebuffer(t.framebuffer)})),$t(e,this.debug,(function(){return e.bindBuffer(e.ARRAY_BUFFER,null)})),$t(e,this.debug,(function(){return e.bindBuffer(e.ELEMENT_ARRAY_BUFFER,null)})),$t(e,this.debug,(function(){return e.deleteBuffer(t.indexBuffer)})),this.disposed=!0}},t.prototype.createFloat32MatrixTexture=function(t,e){return this.throwIfDisposed(),Ni(this.gl,this.debug,t,e,this.textureConfig)},t.prototype.createFloat16MatrixTexture=function(t,e){return this.throwIfDisposed(),Fi(this.gl,this.debug,t,e,this.textureConfig)},t.prototype.createUnsignedBytesMatrixTexture=function(t,e){return this.throwIfDisposed(),Mi(this.gl,this.debug,t,e,this.textureConfig)},t.prototype.uploadPixelDataToTexture=function(t,e){this.throwIfDisposed(),Wi(this.gl,this.debug,t,e)},t.prototype.uploadDenseMatrixToTexture=function(t,e,n,r){this.throwIfDisposed(),Li(this.gl,this.debug,t,e,n,r,this.textureConfig)},t.prototype.createFloat16PackedMatrixTexture=function(t,e){return this.throwIfDisposed(),Pi(this.gl,this.debug,t,e,this.textureConfig)},t.prototype.createPackedMatrixTexture=function(t,e){return this.throwIfDisposed(),Oi(this.gl,this.debug,t,e,this.textureConfig)},t.prototype.deleteMatrixTexture=function(t){var e=this;this.throwIfDisposed(),this.outputTexture===t&&(ye(this.gl,this.debug,this.framebuffer),this.outputTexture=null),$t(this.gl,this.debug,(function(){return e.gl.deleteTexture(t)}))},t.prototype.downloadByteEncodedFloatMatrixFromOutputTexture=function(t,e,n){var r=this;return this.downloadMatrixDriver(t,(function(){return Vi(r.gl,r.debug,e,n,r.textureConfig)}))},t.prototype.downloadPackedMatrixFromBuffer=function(t,e,n,r,o,i){return Gi(this.gl,t,0,0,0,o,i,this.textureConfig)},t.prototype.downloadFloat32MatrixFromBuffer=function(t,e){return Ui(this.gl,t,e)},t.prototype.createBufferFromTexture=function(t,e,n){this.bindTextureToFrameBuffer(t);var r=zi(this.gl,this.debug,e,n,this.textureConfig);return this.unbindTextureToFrameBuffer(),r},t.prototype.createAndWaitForFence=function(){var t=this.createFence(this.gl);return this.pollFence(t)},t.prototype.createFence=function(t){var e,n,r=this;if(f().getBool("WEBGL_FENCE_API_ENABLED")){var o=t,i=o.fenceSync(o.SYNC_GPU_COMMANDS_COMPLETE,0);t.flush(),n=function(){var t=o.clientWaitSync(i,0,0);return t===o.ALREADY_SIGNALED||t===o.CONDITION_SATISFIED},e=i}else f().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")>0?(e=this.beginQuery(),this.endQuery(),n=function(){return r.isQueryAvailable(e,f().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))}):n=function(){return!0};return{query:e,isFencePassed:n}},t.prototype.downloadMatrixFromPackedTexture=function(t,e,n){var r=this;return this.downloadMatrixDriver(t,(function(){return Hi(r.gl,r.debug,e,n)}))},t.prototype.createProgram=function(t){this.throwIfDisposed();var e=this.gl,n=te(e,this.debug,t),r=ki(e,this.debug),o=oe(e,this.debug);return $t(e,this.debug,(function(){return e.attachShader(o,r)})),$t(e,this.debug,(function(){return e.attachShader(o,n)})),ie(e,this.debug,o),this.debug&&ae(e,this.debug,o),this.vertexAttrsAreBound||(this.setProgram(o),this.vertexAttrsAreBound=Bi(e,this.debug,this.program,this.vertexBuffer)),o},t.prototype.deleteProgram=function(t){var e=this;this.throwIfDisposed(),t===this.program&&(this.program=null),null!=t&&$t(this.gl,this.debug,(function(){return e.gl.deleteProgram(t)}))},t.prototype.setProgram=function(t){var e=this;this.throwIfDisposed(),this.program=t,null!=this.program&&this.debug&&ae(this.gl,this.debug,this.program),$t(this.gl,this.debug,(function(){return e.gl.useProgram(t)}))},t.prototype.getUniformLocation=function(t,e,n){return void 0===n&&(n=!0),this.throwIfDisposed(),n?de(this.gl,this.debug,t,e):ve(this.gl,t,e)},t.prototype.getAttributeLocation=function(t,e){var n=this;return this.throwIfDisposed(),$t(this.gl,this.debug,(function(){return n.gl.getAttribLocation(t,e)}))},t.prototype.getUniformLocationNoThrow=function(t,e){return this.throwIfDisposed(),this.gl.getUniformLocation(t,e)},t.prototype.setInputMatrixTexture=function(t,e,n){this.throwIfDisposed(),this.throwIfNoProgram(),me(this.gl,this.debug,this.program,t,e,n)},t.prototype.setOutputMatrixTexture=function(t,e,n){this.setOutputMatrixTextureDriver(t,n,e)},t.prototype.setOutputPackedMatrixTexture=function(t,e,n){this.throwIfDisposed();var r=Kt(e,n),o=r[0],i=r[1];this.setOutputMatrixTextureDriver(t,o,i)},t.prototype.setOutputMatrixWriteRegion=function(t,e,n,r){this.setOutputMatrixWriteRegionDriver(n,t,r,e)},t.prototype.setOutputPackedMatrixWriteRegion=function(t,e,n,r){throw new Error("setOutputPackedMatrixWriteRegion not implemented.")},t.prototype.debugValidate=function(){null!=this.program&&ae(this.gl,this.debug,this.program),xe(this.gl)},t.prototype.executeProgram=function(){this.throwIfDisposed(),this.throwIfNoProgram();var t=this.gl;this.debug&&this.debugValidate(),$t(t,this.debug,(function(){return t.drawElements(t.TRIANGLES,6,t.UNSIGNED_SHORT,0)}))},t.prototype.blockUntilAllProgramsCompleted=function(){var t=this;this.throwIfDisposed(),$t(this.gl,this.debug,(function(){return t.gl.finish()}))},t.prototype.getQueryTimerExtension=function(){return null==this.disjointQueryTimerExtension&&(this.disjointQueryTimerExtension=Qt(this.gl,this.debug,2===f().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")?"EXT_disjoint_timer_query_webgl2":"EXT_disjoint_timer_query")),this.disjointQueryTimerExtension},t.prototype.getQueryTimerExtensionWebGL2=function(){return this.getQueryTimerExtension()},t.prototype.getQueryTimerExtensionWebGL1=function(){return this.getQueryTimerExtension()},t.prototype.beginQuery=function(){if(2===f().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")){var t=this.gl,e=this.getQueryTimerExtensionWebGL2(),n=t.createQuery();return t.beginQuery(e.TIME_ELAPSED_EXT,n),n}var r=this.getQueryTimerExtensionWebGL1(),o=r.createQueryEXT();return r.beginQueryEXT(r.TIME_ELAPSED_EXT,o),o},t.prototype.endQuery=function(){if(2!==f().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")){var t=this.getQueryTimerExtensionWebGL1();t.endQueryEXT(t.TIME_ELAPSED_EXT)}else{var e=this.gl,n=this.getQueryTimerExtensionWebGL2();e.endQuery(n.TIME_ELAPSED_EXT)}},t.prototype.waitForQueryAndGetTime=function(t){return u(this,void 0,void 0,(function(){var e=this;return c(this,(function(n){switch(n.label){case 0:return[4,O((function(){return e.disposed||e.isQueryAvailable(t,f().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))}))];case 1:return n.sent(),[2,this.getQueryTime(t,f().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))]}}))}))},t.prototype.getQueryTime=function(t,e){if(0===e)return null;if(2===e){var n=this.gl;return n.getQueryParameter(t,n.QUERY_RESULT)/1e6}var r=this.getQueryTimerExtensionWebGL1();return r.getQueryObjectEXT(t,r.QUERY_RESULT_EXT)/1e6},t.prototype.isQueryAvailable=function(t,e){if(0===e)return!0;if(2===e){var n=this.gl,r=this.getQueryTimerExtensionWebGL2(),o=n.getQueryParameter(t,n.QUERY_RESULT_AVAILABLE);return null==this.disjoint&&(this.disjoint=this.gl.getParameter(r.GPU_DISJOINT_EXT)),o&&!this.disjoint}return o=(r=this.getQueryTimerExtensionWebGL1()).getQueryObjectEXT(t,r.QUERY_RESULT_AVAILABLE_EXT),null==this.disjoint&&(this.disjoint=this.gl.getParameter(r.GPU_DISJOINT_EXT)),o&&!this.disjoint},t.prototype.pollFence=function(t){var e=this;return new Promise((function(n){e.addItemToPoll((function(){return t.isFencePassed()}),(function(){return n()}))}))},t.prototype.pollItems=function(){for(var t=function(t){for(var e=0;e<t.length&&t[e]();++e);return e-1}(this.itemsToPoll.map((function(t){return t.isDoneFn}))),e=0;e<=t;++e)(0,this.itemsToPoll[e].resolveFn)();this.itemsToPoll=this.itemsToPoll.slice(t+1)},t.prototype.addItemToPoll=function(t,e){var n=this;this.itemsToPoll.push({isDoneFn:t,resolveFn:e}),this.itemsToPoll.length>1||O((function(){return n.pollItems(),0===n.itemsToPoll.length}))},t.prototype.bindTextureToFrameBuffer=function(t){this.throwIfDisposed(),ge(this.gl,this.debug,t,this.framebuffer),this.debug&&xe(this.gl)},t.prototype.unbindTextureToFrameBuffer=function(){null!=this.outputTexture?(ge(this.gl,this.debug,this.outputTexture,this.framebuffer),this.debug&&xe(this.gl)):ye(this.gl,this.debug,this.framebuffer)},t.prototype.downloadMatrixDriver=function(t,e){this.bindTextureToFrameBuffer(t);var n=e();return this.unbindTextureToFrameBuffer(),n},t.prototype.setOutputMatrixTextureDriver=function(t,e,n){this.throwIfDisposed();var r=this.gl;ge(r,this.debug,t,this.framebuffer),this.debug&&xe(r),this.outputTexture=t,$t(r,this.debug,(function(){return r.viewport(0,0,e,n)})),$t(r,this.debug,(function(){return r.scissor(0,0,e,n)}))},t.prototype.setOutputMatrixWriteRegionDriver=function(t,e,n,r){var o=this;this.throwIfDisposed(),$t(this.gl,this.debug,(function(){return o.gl.scissor(t,e,n,r)}))},t.prototype.throwIfDisposed=function(){if(this.disposed)throw new Error("Attempted to use disposed GPGPUContext.")},t.prototype.throwIfNoProgram=function(){if(null==this.program)throw new Error("No GPU program is currently set.")},t}();function Ki(t,e){if(t.length!==e.length)throw Error("Binary was compiled with "+t.length+" inputs, but was executed with "+e.length+" inputs");t.forEach((function(t,n){var r=t.logicalShape,o=e[n],i=o.shape;if(!A(r,i))throw Error("Binary was compiled with different shapes than the current args. Shapes "+r+" and "+i+" must match");if(!t.isUniform||!o.isUniform){var a=t.texShape,s=o.isUniform?null:o.texData.texShape;if(!A(a,s))throw Error("Binary was compiled with different texture shapes than the current args. Shape "+a+" and "+s+" must match")}}))}var Xi=function(t,e,n){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t;for(var r=n.filterWidth,o=n.inChannels,i=n.strideWidth,a=n.strideHeight,s=n.padInfo,u=n.outWidth,c=n.dilationWidth,l=n.dilationHeight,h=n.dataFormat,f=s.left,p=s.top,d=o*r,v=Co(),m="channelsLast"===h,g=m?0:1,y=m?1:2,x="",b=0;b<=1;b++)for(var w=0;w<=1;w++)x+="\n          blockIndex = rc.y + "+w+";\n          pos = rc.x + "+b+";\n\n          if(blockIndex < "+t[1]+" && pos < "+t[0]+") {\n            offsetY = int(blockIndex / ("+u+")) * "+a+" - "+p+";\n            d0 = offsetY + "+l+" * (pos / "+d+");\n\n            if(d0 < "+e[g]+" && d0 >= 0) {\n\n              offsetX = int(mod(float(blockIndex), "+u+".) * "+i+". - "+f+".);\n              d1 = offsetX + "+c+" * (int(mod(float(pos), "+d+".) / "+o+".));\n\n              if(d1 < "+e[y]+" && d1 >= 0) {\n\n                ch = int(mod(float(pos), "+o+".));\n\n                if ("+m+") {\n                  innerDims = vec2(d1, ch);\n                  result["+(2*b+w)+"] = getChannel(\n                    getA(d0, int(innerDims.x),\n                    int(innerDims.y)), innerDims);\n                } else {\n                  innerDims = vec2(d0, d1);\n                  result["+(2*b+w)+"] = getChannel(\n                    getA(ch, int(innerDims.x),\n                    int(innerDims.y)), innerDims);\n                }\n              }\n            }\n          }\n        ";this.userCode="\n      void main() {\n        ivec2 rc = getOutputCoords();\n\n        vec4 result = vec4(0);\n\n        int blockIndex, pos, offsetY, d0, offsetX, d1, ch;\n        vec2 innerDims;\n\n        "+x+"\n\n        "+v.output+" = result;\n      }\n    "},$i=function(t,e,n,r,o){this.variableNames=["x"],this.outputShape=[];var i,a=e,s=t[3]-1;this.outputShape=t;var u="float("+n+") + float("+r+") * sum";i=.5===o?"inversesqrt("+u+")":1===o?"1.0/("+u+")":"exp(log("+u+") * float(-"+o+"));",this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int r = coords[1];\n        int c = coords[2];\n        int d = coords[3];\n        float x = getX(b, r, c, d);\n        float sum = 0.0;\n        for (int j = -"+a+"; j <= "+a+"; j++) {\n          int idx = d + j;\n          if (idx >= 0 && idx <=  "+s+") {\n            float z = getX(b, r, c, idx);\n            sum += z * z;\n          }\n        }\n        float val = x * "+i+";\n        setOutput(val);\n      }\n    "},Yi=function(t,e,n,r,o){this.variableNames=["inputImage","outputImage","dy"],this.outputShape=[],this.outputShape=t,this.depth=t[3],this.depthRadius=e,this.bias=n,this.alpha=r,this.beta=o,this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int r = coords[1];\n        int c = coords[2];\n\n        float result = 0.0;\n        for (int d = 0; d < "+this.depth+"; ++d) {\n          int depthBegin = int(max(0.0, float(d - "+e+")));\n          int depthEnd = int(min(float("+this.depth+"),\n              float(d + "+e+" + 1)));\n\n          const int MIN_DEPTH_BEGIN = 0;\n          const int MAX_DEPTH_END = "+this.depth+";\n\n          float norm = 0.0;\n          for (int k = MIN_DEPTH_BEGIN; k < MAX_DEPTH_END; ++k) {\n            if (k < depthBegin){\n              continue;\n            }\n            else if (k >= depthBegin && k < depthEnd) {\n              norm += getInputImage(b, r, c, k) * getInputImage(b, r, c, k);\n            }\n            else {\n              break;\n            }\n          }\n\n          norm = float("+r+") * norm + float("+n+");\n\n          for(int k = MIN_DEPTH_BEGIN; k < MAX_DEPTH_END; ++k){\n            if (k < depthBegin){\n              continue;\n            }\n            else if (k >= depthBegin && k < depthEnd){\n              float dyi = -2.0 * float("+r+")\n                * float("+o+")\n                * getInputImage(b ,r ,c, k) * getOutputImage(b, r, c, d)\n                / norm;\n              if (k == d) {\n                dyi += pow(norm, -1.0 * "+o+");\n              }\n              if (k == coords[3]) {\n                dyi *= getDy(b, r, c, d);\n                result += dyi;\n              }\n            }\n            else {\n              break;\n            }\n          }\n      }\n      setOutput(result);\n      }\n    "},Ji=function(t,e,n,r,o){this.variableNames=["x"],this.outputShape=[],this.packedInputs=!0,this.packedOutput=!0;var i,a=e,s=t[3]-1;this.outputShape=t;var u="float("+n+") + float("+r+") * sum";i=.5===o?"inversesqrt("+u+")":1===o?"1.0/("+u+")":"exp(log("+u+") * float(-"+o+"));",this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords.x;\n        int r = coords.y;\n        int c = coords.z;\n        int d = coords.w;\n\n        bool hasNextCol = d < "+this.outputShape[3]+";\n        bool hasNextRow = c < "+this.outputShape[2]+";\n\n        vec4 sum = vec4(0.);\n        vec4 xFragAtOutputCoords = getX(b, r, c, d);\n\n        vec4 xAtOutputCoords = vec4(\n          getChannel(xFragAtOutputCoords, vec2(c, d)),\n          hasNextCol ?\n            getChannel(xFragAtOutputCoords, vec2(c, d + 1)) : 0.0,\n          hasNextRow ?\n            getChannel(xFragAtOutputCoords , vec2(c + 1, d)) : 0.0,\n          (hasNextRow && hasNextCol) ?\n            getChannel(xFragAtOutputCoords, vec2(c + 1, d + 1)) : 0.0\n        );\n\n        int firstChannel = d - "+a+";\n        vec2 cache = vec2(0.);\n        if(firstChannel >= 0){\n          vec4 firstChannelFrag = getX(b, r, c, firstChannel);\n          cache.x = getChannel(firstChannelFrag, vec2(c, firstChannel));\n            if(hasNextRow){\n              cache.y = getChannel(firstChannelFrag, vec2(c + 1, firstChannel));\n            }\n        }\n\n        ivec2 depth = ivec2(d, d + 1);\n        for (int j = - "+a+"; j <= "+a+"; j++) {\n          ivec2 idx = depth + j;\n          bvec2 aboveLowerBound = greaterThanEqual(idx, ivec2(0));\n          bvec2 belowUpperBound = lessThanEqual(idx, ivec2("+s+"));\n\n          bool depthInRange = aboveLowerBound.x && belowUpperBound.x;\n          bool depthPlusOneInRange = aboveLowerBound.y && belowUpperBound.y;\n\n          if(depthInRange || depthPlusOneInRange){\n            vec4 z = vec4(0.);\n            vec4 xFragAtCurrentDepth;\n            z.xz = cache.xy;\n            if(depthPlusOneInRange && hasNextCol){\n              xFragAtCurrentDepth = idx.y != d ?\n                getX(b, r, c, idx.y) : xFragAtOutputCoords;\n              z.y = getChannel(xFragAtCurrentDepth, vec2(c, idx.y));\n              if(hasNextRow){\n                z.w = getChannel(xFragAtCurrentDepth, vec2(c + 1, idx.y));\n              }\n            }\n            cache.xy = z.yw;\n            sum += z * z;\n          }\n        }\n        vec4 result = xAtOutputCoords * "+i+";\n        setOutput(result);\n      }\n    "},Qi=function(t){this.variableNames=["dy","maxPos"],this.outputShape=t.inShape;var e=t.strideHeight,n=t.strideWidth,r=t.dilationHeight,o=t.effectiveFilterHeight,i=t.effectiveFilterWidth,a=o-1-t.padInfo.top,s=i-1-t.padInfo.left,u=o*i-1;this.userCode="\n      const ivec2 pads = ivec2("+a+", "+s+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n\n        ivec2 dyRCCorner = coords.yz - pads;\n        int dyRCorner = dyRCCorner.x;\n        int dyCCorner = dyRCCorner.y;\n\n        // Convolve dy(?, ?, d) with pos mask(:, :, d) to get dx(xR, xC, d).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n        for (int wR = 0; wR < "+o+";\n          wR += "+r+") {\n          float dyR = float(dyRCorner + wR) / "+e+".0;\n\n          if (dyR < 0.0 || dyR >= "+t.outHeight+".0 || fract(dyR) > 0.0) {\n            continue;\n          }\n          int idyR = int(dyR);\n\n          for (int wC = 0; wC < "+i+"; wC++) {\n            float dyC = float(dyCCorner + wC) / "+n+".0;\n\n            if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n                fract(dyC) > 0.0) {\n              continue;\n            }\n            int idyC = int(dyC);\n\n            float dyValue = getDy(b, idyR, idyC, d);\n            int maxPosValue = "+u+" - int(getMaxPos(b, idyR, idyC, d));\n\n            // Get the current value, check it against the value from the\n            // position matrix.\n            int curPosValue = wR * "+i+" + wC;\n            float mask = float(maxPosValue == curPosValue ? 1.0 : 0.0);\n\n            dotProd += dyValue * mask;\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},Zi=function(t){this.variableNames=["dy","maxPos"],this.outputShape=t.inShape;var e=t.strideDepth,n=t.strideHeight,r=t.strideWidth,o=t.dilationDepth,i=t.dilationHeight,a=t.dilationWidth,s=t.effectiveFilterDepth,u=t.effectiveFilterHeight,c=t.effectiveFilterWidth,l=s-1-t.padInfo.front,h=u-1-t.padInfo.top,f=c-1-t.padInfo.left,p=s*u*c-1;this.userCode="\n      const ivec3 pads = ivec3("+l+", "+h+", "+f+");\n\n      void main() {\n        ivec5 coords = getOutputCoords();\n        int batch = coords.x;\n        int ch = coords.u;\n\n        ivec3 dyCorner = ivec3(coords.y, coords.z, coords.w) - pads;\n        int dyDCorner = dyCorner.x;\n        int dyRCorner = dyCorner.y;\n        int dyCCorner = dyCorner.z;\n\n        // Convolve dy(?, ?, ?, ch) with pos mask(:, :, :, d) to get\n        // dx(xD, xR, xC, ch).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n\n        for (int wD = 0; wD < "+s+";\n           wD += "+o+") {\n          float dyD = float(dyDCorner + wD) / "+e+".0;\n\n          if (dyD < 0.0 || dyD >= "+t.outDepth+".0 || fract(dyD) > 0.0) {\n            continue;\n          }\n          int idyD = int(dyD);\n\n          for (int wR = 0; wR < "+u+";\n              wR += "+i+") {\n            float dyR = float(dyRCorner + wR) / "+n+".0;\n\n            if (dyR < 0.0 || dyR >= "+t.outHeight+".0 ||\n                fract(dyR) > 0.0) {\n              continue;\n            }\n            int idyR = int(dyR);\n\n            for (int wC = 0; wC < "+c+";\n                wC += "+a+") {\n              float dyC = float(dyCCorner + wC) / "+r+".0;\n\n              if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n                  fract(dyC) > 0.0) {\n                continue;\n              }\n              int idyC = int(dyC);\n\n              float dyValue = getDy(batch, idyD, idyR, idyC, ch);\n              int maxPosValue = "+p+" -\n                  int(getMaxPos(batch, idyD, idyR, idyC, ch));\n\n              // Get the current value, check it against the value from the\n              // position matrix.\n              int curPosValue =\n                  wD * "+u+" * "+c+" +\n                  wR * "+c+" + wC;\n              float mask = float(maxPosValue == curPosValue ? 1.0 : 0.0);\n\n              dotProd += dyValue * mask;\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},ta=function(t,e,n,r,o,i,a){void 0===n&&(n=!1),void 0===r&&(r=!1),void 0===o&&(o=!1),void 0===i&&(i=null),void 0===a&&(a=!1),this.variableNames=["matrixA","matrixB"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=e;var s=n?t[1]:t[2],u=Math.ceil(s/2),c=n?"i * 2, rc.y":"rc.y, i * 2",l=r?"rc.z, i * 2":"i * 2, rc.z",h=n?["a.xxyy","a.zzww"]:["a.xxzz","a.yyww"],f=r?["b.xzxz","b.ywyw"]:["b.xyxy","b.zwzw"],p="",d="";i&&(p=a?"vec4 activation(vec4 a) {\n          vec4 b = getPreluActivationWeightsAtOutCoords();\n          "+i+"\n        }":"vec4 activation(vec4 x) {\n          "+i+"\n        }",d="result = activation(result);");var v=o?"result += getBiasAtOutCoords();":"";o&&this.variableNames.push("bias"),a&&this.variableNames.push("preluActivationWeights"),this.userCode="\n      "+p+"\n\n      const float sharedDimension = "+u+".0;\n\n      vec4 dot2x2ARowBCol(ivec3 rc) {\n        vec4 result = vec4(0);\n        for (int i = 0; i < "+u+"; i++) {\n          vec4 a = getMatrixA(rc.x, "+c+");\n          vec4 b = getMatrixB(rc.x, "+l+");\n\n          // These swizzled products need to be separately added.\n          // See: https://github.com/tensorflow/tfjs/issues/1735\n          result += ("+h[0]+" * "+f[0]+");\n          result += ("+h[1]+" * "+f[1]+");\n        }\n        return result;\n      }\n\n      void main() {\n        ivec3 rc = getOutputCoords();\n        vec4 result = dot2x2ARowBCol(rc);\n\n        "+v+"\n\n        "+d+"\n\n        setOutput(result);\n      }\n    "},ea=function(){function t(t,e,n){this.variableNames=["probs"],this.outputShape=[t,n],this.userCode="\n      uniform float seed;\n\n      void main() {\n        ivec2 coords = getOutputCoords();\n        int batch = coords[0];\n\n        float r = random(seed);\n        float cdf = 0.0;\n\n        for (int i = 0; i < "+(e-1)+"; i++) {\n          cdf += getProbs(batch, i);\n\n          if (r < cdf) {\n            setOutput(float(i));\n            return;\n          }\n        }\n\n        // If no other event happened, last event happened.\n        setOutput(float("+(e-1)+"));\n      }\n    "}return t.prototype.getCustomSetupFunc=function(t){var e=this;return function(n,r){null==e.seedLoc&&(e.seedLoc=n.getUniformLocation(r,"seed")),n.gl.uniform1f(e.seedLoc,t)}},t}(),na=function(t,e,n,r){this.variableNames=["indices"],this.outputShape=[t,e],this.userCode="\n      void main() {\n        ivec2 coords = getOutputCoords();\n        int index = round(getIndices(coords.x));\n        setOutput(mix(float("+r+"), float("+n+"),\n                      float(index == coords.y)));\n      }\n    "},ra=function(t){this.variableNames=["A"],this.packedInputs=!1,this.packedOutput=!0,this.outputShape=t;var e=t.length;if(0===e)this.userCode="\n        void main() {\n          setOutput(vec4(getA(), 0., 0., 0.));\n        }\n      ";else{var n=wo("rc",e),r=Oo(e),o=function(t,e,n){if(1===t)return"rc > "+e[0];for(var r="",o=t-2;o<t;o++)r+=n[o]+" >= "+e[o],o<t-1&&(r+="||");return r}(e,t,n),i=function(t,e,n,r){if(1===t)return"";var o=r.slice(-2);return"\n    int r = "+o[0]+";\n    int c = "+o[1]+";\n    int rp1 = r + 1;\n    int cp1 = c + 1;\n\n    bool cEdge = cp1 >= "+e+";\n    bool rEdge = rp1 >= "+n+";\n  "}(e,t[t.length-1],t[t.length-2],n),a=function(t,e){var n=t.length,r=function(t,e){for(var n=[],r=0;r<=1;r++)for(var o=0;o<=1;o++){for(var i=(0===r?"r":"rp1")+", "+(0===o?"c":"cp1"),a=2;a<t;a++)i=e[e.length-1-a]+","+i;n.push(i)}return n}(n,e);return 1===n?"getA(rc),\n            rc + 1 >= "+t[0]+" ? 0. : getA(rc + 1),\n            0, 0":"getA("+r[0]+"),\n          cEdge ? 0. : getA("+r[1]+"),\n          rEdge ? 0. : getA("+r[2]+"),\n          rEdge || cEdge ? 0. : getA("+r[3]+")"}(t,n);this.userCode="\n        void main() {\n          "+r+" rc = getOutputCoords();\n\n          if("+o+") {\n            setOutput(vec4(0));\n          } else {\n            "+i+"\n\n            setOutput(vec4("+a+"));\n          }\n        }\n      "}},oa=function(t,e,n){this.variableNames=["x"],this.outputShape=e.map((function(e,n){return e[0]+t[n]+e[1]}));var r=t.length,o=Oo(r),i=e.map((function(t){return t[0]})).join(","),a=e.map((function(e,n){return e[0]+t[n]})).join(","),s=["coords[0]","coords[1]","coords[2]","coords[3]"].slice(0,r);this.userCode=1!==r?"\n      "+o+" start = "+o+"("+i+");\n      "+o+" end = "+o+"("+a+");\n\n      void main() {\n        "+o+" outC = getOutputCoords();\n        if (any(lessThan(outC, start)) || any(greaterThanEqual(outC, end))) {\n          setOutput(float("+n+"));\n        } else {\n          "+o+" coords = outC - start;\n          setOutput(getX("+s+"));\n        }\n      }\n    ":"\n        int start = "+i+";\n        int end = "+a+";\n\n        void main() {\n          int outC = getOutputCoords();\n          if (outC < start || outC >= end) {\n            setOutput(float("+n+"));\n          } else {\n            setOutput(getX(outC - start));\n          }\n        }\n      "},ia=function(t,e,n){this.variableNames=["x"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=e.map((function(e,n){return e[0]+t[n]+e[1]}));for(var r=t.length,o=Oo(r),i=e.map((function(t){return t[0]})).join(","),a=e.map((function(e,n){return e[0]+t[n]})).join(","),s=wo("rc",r),u=wo("source",r),c=s[r-1]+" < "+this.outputShape[r-1],l=1===r?"source":"vec2("+u.slice(-2).join()+")",h=[o+" rc = outputLoc;",s[r-1]+" += 1;\n       if("+c+") {\n      ",1===r?"":"}\n       rc = outputLoc;\n       "+s[r-2]+" += 1;\n       if("+s[r-2]+" < "+this.outputShape[r-2]+") {",1===r?"":"  "+s[r-1]+" += 1;\n         if("+c+") {"],f=1===r?"rc < start || rc >= end":"any(lessThan(rc, start)) || any(greaterThanEqual(rc, end))",p="",d=0,v=1===r?2:4;d<v;d++)p+="\n        "+h[d]+"\n        if ("+f+") {\n          result["+d+"] = float("+n+");\n        } else {\n          "+o+" source = rc - start;\n          result["+d+"] = getChannel(getX("+u.join()+"), "+l+");\n        }\n      ";p+=1===r?"} ":"}}",this.userCode="\n      const "+o+" start = "+o+"("+i+");\n      const "+o+" end = "+o+"("+a+");\n\n      void main() {\n        "+o+" outputLoc = getOutputCoords();\n        vec4 result = vec4(0.);\n        "+p+"\n        setOutput(result);\n      }\n    "},aa=function(t,e,n){if(this.variableNames=["x"],"avg"===e&&n)throw new Error("Cannot compute positions for average pool.");var r=t.filterWidth,o=t.strideHeight,i=t.strideWidth,a=t.dilationHeight,s=t.dilationWidth,u=t.effectiveFilterHeight,c=t.effectiveFilterWidth,l=t.padInfo.top,h=t.padInfo.left;this.outputShape=t.outShape;var f="avg"===e,p="0.0";if(f||(p="-1.0 / 1e-20"),n)this.userCode="\n        const ivec2 strides = ivec2("+o+", "+i+");\n        const ivec2 pads = ivec2("+l+", "+h+");\n\n        void main() {\n          ivec4 coords = getOutputCoords();\n          int batch = coords[0];\n          int d = coords[3];\n\n          ivec2 xRCCorner = coords.yz * strides - pads;\n          int xRCorner = xRCCorner.x;\n          int xCCorner = xRCCorner.y;\n\n          // max/min x(?, ?, d) to get y(yR, yC, d).\n          // ? = to be determined\n          float minMaxValue = 0.0;\n          float minMaxValueFound = 0.0;\n          int minMaxPosition = 0;\n          float avgValue = 0.0;\n\n          for (int wR = 0; wR < "+u+";\n              wR += "+a+") {\n            int xR = xRCorner + wR;\n\n            if (xR < 0 || xR >= "+t.inHeight+") {\n              continue;\n            }\n\n            for (int wC = 0; wC < "+c+";\n                wC += "+s+") {\n              int xC = xCCorner + wC;\n\n              if (xC < 0 || xC >= "+t.inWidth+") {\n                continue;\n              }\n\n              float value = getX(batch, xR, xC, d);\n\n              // If a min / max value has already been found, use it. If not,\n              // use the current value.\n              float currMinMaxValue = mix(\n                  value, minMaxValue, minMaxValueFound);\n              if (value >= currMinMaxValue) {\n                minMaxValue = value;\n                minMaxValueFound = 1.0;\n                minMaxPosition = wR * "+c+" + wC;\n              }\n            }\n          }\n          setOutput(float(minMaxPosition));\n        }\n      ";else{var d=e+"("+e+"("+e+"(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])";"avg"===e&&(d="avgValue / count");var v=4*Math.floor(r/4),m=r%4,g="\n      if ("+f+") {\n        avgValue += dot(values, ones);\n      } else {\n        minMaxValue = max(values, minMaxValue);\n      }\n    ";this.userCode="\n      const ivec2 strides = ivec2("+o+", "+i+");\n      const ivec2 pads = ivec2("+l+", "+h+");\n      const float initializationValue = "+p+";\n      const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0);\n\n      float count = 0.0;\n\n      float getValue(int batch, int xR, int xC, int d) {\n        if (xC < 0 || xC >= "+t.inWidth+") {\n          return initializationValue;\n        }\n        count += 1.0;\n        return getX(batch, xR, xC, d);\n      }\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int batch = coords[0];\n        int d = coords[3];\n\n        ivec2 xRCCorner = coords.yz * strides - pads;\n        int xRCorner = xRCCorner.x;\n        int xCCorner = xRCCorner.y;\n\n        // max/min x(?, ?, d) to get y(yR, yC, d).\n        // ? = to be determined\n        vec4 minMaxValue = vec4("+p+");\n        float avgValue = 0.0;\n        count = 0.0;\n\n        for (int wR = 0; wR < "+u+";\n            wR += "+a+") {\n          int xR = xRCorner + wR;\n\n          if (xR < 0 || xR >= "+t.inHeight+") {\n            continue;\n          }\n\n          for (int wC = 0; wC < "+v+"; wC += 4) {\n            int xC = xCCorner + wC * "+s+";\n\n            vec4 values = vec4(\n              getValue(batch, xR, xC, d),\n              getValue(batch, xR, xC + "+s+", d),\n              getValue(batch, xR, xC + 2 * "+s+", d),\n              getValue(batch, xR, xC + 3 * "+s+", d)\n            );\n\n            "+g+"\n          }\n\n          int xC = xCCorner + "+v+";\n          if ("+(1===m)+") {\n            vec4 values = vec4(\n              getValue(batch, xR, xC, d),\n              initializationValue,\n              initializationValue,\n              initializationValue\n            );\n\n            "+g+"\n          } else if ("+(2===m)+") {\n            vec4 values = vec4(\n              getValue(batch, xR, xC, d),\n              getValue(batch, xR, xC + "+s+", d),\n              initializationValue,\n              initializationValue\n            );\n\n            "+g+"\n          } else if ("+(3===m)+") {\n            vec4 values = vec4(\n              getValue(batch, xR, xC, d),\n              getValue(batch, xR, xC + "+s+", d),\n              getValue(batch, xR, xC + 2 * "+s+", d),\n              initializationValue\n            );\n\n            "+g+"\n          }\n        }\n        setOutput("+d+");\n      }\n    "}},sa=function(t,e,n){if(this.variableNames=["x"],"avg"===e&&n)throw new Error("Cannot compute positions for average pool.");var r=t.filterWidth,o=t.strideDepth,i=t.strideHeight,a=t.strideWidth,s=t.dilationDepth,u=t.dilationHeight,c=t.dilationWidth,l=t.effectiveFilterDepth,h=t.effectiveFilterHeight,f=t.effectiveFilterWidth,p=t.padInfo.front,d=t.padInfo.top,v=t.padInfo.left;this.outputShape=t.outShape;var m="avg"===e,g="0.0";if(m||(g="-1.0 / 1e-20"),n)this.userCode="\n        const ivec3 strides =\n            ivec3("+o+", "+i+", "+a+");\n        const ivec3 pads = ivec3("+p+", "+d+", "+v+");\n\n        void main() {\n          ivec5 coords = getOutputCoords();\n          int batch = coords.x;\n          int ch = coords.u;\n\n          ivec3 xCorner = ivec3(coords.y, coords.z, coords.w) * strides - pads;\n          int xDCorner = xCorner.x;\n          int xRCorner = xCorner.y;\n          int xCCorner = xCorner.z;\n\n          // max/min x(?, ?, ?, ch) to get y(yD, yR, yC, ch).\n          // ? = to be determined\n          float minMaxValue = 0.0;\n          float minMaxValueFound = 0.0;\n          int minMaxPosition = 0;\n\n          for (int wD = 0; wD < "+l+";\n              wD += "+s+") {\n            int xD = xDCorner + wD;\n\n            if (xD < 0 || xD >= "+t.inDepth+") {\n              continue;\n            }\n\n            for (int wR = 0; wR < "+h+";\n                wR += "+u+") {\n              int xR = xRCorner + wR;\n\n              if (xR < 0 || xR >= "+t.inHeight+") {\n                continue;\n              }\n\n              for (int wC = 0; wC < "+f+";\n                  wC += "+c+") {\n                int xC = xCCorner + wC;\n\n                if (xC < 0 || xC >= "+t.inWidth+") {\n                  continue;\n                }\n\n                float value = getX(batch, xD, xR, xC, ch);\n\n                // If a min / max value has already been found, use it. If not,\n                // use the current value.\n                float currMinMaxValue = mix(\n                    value, minMaxValue, minMaxValueFound);\n                if (value >= currMinMaxValue) {\n                  minMaxValue = value;\n                  minMaxValueFound = 1.0;\n                  minMaxPosition =\n                      wD * "+h+" * "+f+" +\n                      wR * "+f+" + wC;;\n                }\n              }\n            }\n          }\n          setOutput(float(minMaxPosition));\n        }\n      ";else{var y=e+"("+e+"("+e+"(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])";"avg"===e&&(y="avgValue / count");var x=4*Math.floor(r/4),b=r%4,w="\n      if ("+m+") {\n        avgValue += dot(values, ones);\n      } else {\n        minMaxValue = max(values, minMaxValue);\n      }\n    ";this.userCode="\n      const ivec3 strides =\n        ivec3("+o+", "+i+", "+a+");\n      const ivec3 pads = ivec3("+p+", "+d+", "+v+");\n      const float initializationValue = "+g+";\n      const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0);\n\n      float count = 0.0;\n\n      float getValue(int batch, int xD, int xR, int xC, int ch) {\n        if (xC < 0 || xC >= "+t.inWidth+") {\n          return initializationValue;\n        }\n        count += 1.0;\n        return getX(batch, xD, xR, xC, ch);\n      }\n\n      void main() {\n        ivec5 coords = getOutputCoords();\n        int batch = coords.x;\n        int ch = coords.u;\n\n        ivec3 xCorner = ivec3(coords.y, coords.z, coords.w) * strides - pads;\n        int xDCorner = xCorner.x;\n        int xRCorner = xCorner.y;\n        int xCCorner = xCorner.z;\n\n        // max/min x(?, ?, ?, d) to get y(yD, yR, yC, ch).\n        // ? = to be determined\n        vec4 minMaxValue = vec4("+g+");\n        float avgValue = 0.0;\n        count = 0.0;\n\n        for (int wD = 0; wD < "+l+";\n            wD += "+s+") {\n          int xD = xDCorner + wD;\n\n          if (xD < 0 || xD >= "+t.inDepth+") {\n            continue;\n          }\n\n          for (int wR = 0; wR < "+h+";\n            wR += "+u+") {\n            int xR = xRCorner + wR;\n\n            if (xR < 0 || xR >= "+t.inHeight+") {\n              continue;\n            }\n\n            for (int wC = 0; wC < "+x+"; wC += 4) {\n              int xC = xCCorner + wC * "+c+";\n\n              vec4 values = vec4(\n                getValue(batch, xD, xR, xC, ch),\n                getValue(batch, xD, xR, xC + "+c+", ch),\n                getValue(batch, xD, xR, xC + 2 * "+c+", ch),\n                getValue(batch, xD, xR, xC + 3 * "+c+", ch)\n              );\n\n              "+w+"\n            }\n\n            int xC = xCCorner + "+x+";\n            if ("+(1===b)+") {\n              vec4 values = vec4(\n                getValue(batch, xD, xR, xC, ch),\n                initializationValue,\n                initializationValue,\n                initializationValue\n              );\n\n              "+w+"\n            } else if ("+(2===b)+") {\n              vec4 values = vec4(\n                getValue(batch, xD, xR, xC, ch),\n                getValue(batch, xD, xR, xC + "+c+", ch),\n                initializationValue,\n                initializationValue\n              );\n\n              "+w+"\n            } else if ("+(3===b)+") {\n              vec4 values = vec4(\n                getValue(batch, xD, xR, xC, ch),\n                getValue(batch, xD, xR, xC + "+c+", ch),\n                getValue(batch, xD, xR, xC + 2 * "+c+", ch),\n                initializationValue\n              );\n\n              "+w+"\n            }\n          }\n          setOutput("+y+");\n        }\n      }\n    "}},ua=function(t,e){this.variableNames=["x"];var n=t.windowSize,r=t.batchSize,o=t.inSize,i=Math.ceil(o/n);this.outputShape=[r,i];var a="0.0",s="";"prod"===e?a="1.0":"min"===e?(a="1.0 / 1e-20",s="min"):"max"===e&&(a="-1.0 / 1e-20",s="max");var u=e+"("+e+"("+e+"(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])";"sum"===e?u="sumValue":"prod"===e?u="prodValue":"all"===e?u="allValue":"any"===e&&(u="anyValue");var c=4*Math.floor(n/4),l=n%4,h="\n      if ("+("sum"===e)+") {\n        sumValue += dot(values, ones);\n      } else if ("+("prod"===e)+") {\n        vec2 tmp = vec2(values[0], values[1]) * vec2(values[2], values[3]);\n        prodValue *= tmp[0] * tmp[1];\n      } else {\n        minMaxValue = "+s+"(values, minMaxValue);\n      }\n    ",f="vec4";"all"===e?(a="1.0",h="\n        bool reducedAllValue = all(values);\n        float floatedReducedAllValue = float(reducedAllValue);\n        allValue = float(allValue >= 1.0 && floatedReducedAllValue >= 1.0);\n      ",f="bvec4"):"any"===e&&(a="0.0",h="\n        bool reducedAnyValue = any(values);\n        float floatedReducedAnyValue = float(reducedAnyValue);\n        anyValue = float(anyValue >= 1.0 || floatedReducedAnyValue >= 1.0);\n      ",f="bvec4");var p="";o%n>0&&(p="\n        if (inIdx < 0 || inIdx >= "+o+") {\n          return initializationValue;\n        }\n      "),this.userCode="\n      const float initializationValue = "+a+";\n      const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0);\n\n      float getValue(int batch, int inIdx) {\n        "+p+"\n        return getX(batch, inIdx);\n      }\n\n      void main() {\n        ivec2 coords = getOutputCoords();\n        int batch = coords[0];\n        int outIdx = coords[1];\n        int inOffset = outIdx * "+n+";\n\n        vec4 minMaxValue = vec4("+a+");\n        float prodValue = 1.0;\n        float sumValue = 0.0;\n        float allValue = 1.0;\n        float anyValue = 0.0;\n\n        for (int i = 0; i < "+c+"; i += 4) {\n          int inIdx = inOffset + i;\n          "+f+" values = "+f+"(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            getValue(batch, inIdx + 2),\n            getValue(batch, inIdx + 3)\n          );\n\n          "+h+"\n        }\n\n        int inIdx = inOffset + "+c+";\n        if ("+(1===l)+") {\n          "+f+" values = "+f+"(\n            getValue(batch, inIdx),\n            initializationValue,\n            initializationValue,\n            initializationValue\n          );\n\n          "+h+"\n        } else if ("+(2===l)+") {\n          "+f+" values = "+f+"(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            initializationValue,\n            initializationValue\n          );\n\n          "+h+"\n        } else if ("+(3===l)+") {\n          "+f+" values = "+f+"(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            getValue(batch, inIdx + 2),\n            initializationValue\n          );\n\n          "+h+"\n        }\n        setOutput("+u+");\n      }\n    "},ca=function(t,e){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t;for(var n="",r=0;r<4;r++){var o="thisRC = rc;";r%2==1&&(o+="thisRC.z += 1;"),r>1&&(o+="thisRC.y += 1;"),n+="\n        "+o+"\n        "+(r>0?"if(thisRC.y < rows && thisRC.z < cols){":"")+"\n          int flatIndex = getFlatIndex(thisRC);\n\n          ivec3 inputRC = inputCoordsFromReshapedOutCoords(flatIndex);\n          vec2 inputRCInnerDims = vec2(float(inputRC.y),float(inputRC.z));\n\n          result["+r+"] =\n            getChannel(getA(inputRC.x, inputRC.y, inputRC.z), inputRCInnerDims);\n        "+(r>0?"}":"")+"\n      "}this.userCode="\n      \n    ivec3 inputCoordsFromReshapedOutCoords(int index) {\n      "+Eo(["r","c","d"],e)+"\n      return ivec3(r, c, d);\n    }\n  \n      "+_o(t)+"\n\n      void main() {\n        ivec3 rc = getOutputCoords();\n\n        vec4 result = vec4(0.);\n\n        ivec3 thisRC;\n        int rows = "+t[1]+";\n        int cols = "+t[2]+";\n\n        "+n+"\n\n        setOutput(result);\n      }\n    "},la=function(t,e,n){this.variableNames=["dy"],this.outputShape=[],this.outputShape=e.shape;var r=e.shape,o=r[1],i=r[2],a=t.shape,s=a[1],u=a[2],c=[n&&s>1?o-1:o,n&&u>1?i-1:i],l=[n&&s>1?s-1:s,n&&u>1?u-1:u],h=c[0]/l[0],f=c[1]/l[1],p=1/h,d=1/f,v=2*Math.ceil(p)+2,m=2*Math.ceil(d)+2;this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n        int r = coords[1];\n        int c = coords[2];\n\n        float accumulator = 0.0;\n\n        const float heightScale = float("+h+");\n        const float widthScale = float("+f+");\n\n        const float invHeightScale = float("+p+");\n        const float invWidthScale = float("+d+");\n\n        const int winHeight = int("+v+");\n        const int winWidth = int("+m+");\n\n        // Compute bounds for where in dy we will look\n        float startRLerp = floor(float(r) * invHeightScale);\n        int startDyR = int(startRLerp - float(winHeight / 2));\n\n        float startCLerp = floor(float(c) * invWidthScale);\n        int startDyC = int(startCLerp - float(winWidth / 2));\n\n        // Loop over dy\n        for (int dyROffset = 0; dyROffset < winHeight; dyROffset++) {\n          int dyR = dyROffset + startDyR;\n\n          // Guard against the window exceeding the bounds of dy\n          if (dyR < 0 || dyR >= "+s+") {\n            continue;\n          }\n\n          for (int dyCOffset = 0; dyCOffset < winWidth; dyCOffset++) {\n            int dyC = dyCOffset + startDyC;\n\n            // Guard against the window exceeding the bounds of dy\n            if (dyC < 0 || dyC >= "+u+") {\n              continue;\n            }\n\n            float dxR = float(dyR) * heightScale;\n            int topDxRIndex = int(floor(dxR));\n            int bottomDxRIndex = int(min(ceil(dxR), "+(o-1)+".0));\n            float dxRLerp = dxR - float(topDxRIndex);\n            float inverseDxRLerp = 1.0 - dxRLerp;\n\n            float dxC = float(dyC) * widthScale;\n            int leftDxCIndex = int(floor(dxC));\n            int rightDxCIndex = int(min(ceil(dxC), "+(i-1)+".0));\n            float dxCLerp = dxC - float(leftDxCIndex);\n            float inverseDxCLerp = 1.0 - dxCLerp;\n\n            if (r == topDxRIndex && c == leftDxCIndex) {\n              // topLeft\n              accumulator +=\n                getDy(b, dyR, dyC, d) * inverseDxRLerp * inverseDxCLerp;\n            }\n\n            if (r == topDxRIndex && c == rightDxCIndex) {\n              // topRight\n              accumulator += getDy(b, dyR, dyC, d) * inverseDxRLerp * dxCLerp;\n            }\n\n            if (r == bottomDxRIndex && c == leftDxCIndex) {\n              // bottomLeft\n              accumulator += getDy(b, dyR, dyC, d) * dxRLerp * inverseDxCLerp;\n            }\n\n            if (r == bottomDxRIndex && c == rightDxCIndex) {\n              // bottomRight\n              accumulator += getDy(b, dyR, dyC, d) * dxRLerp * dxCLerp;\n            }\n          }\n        }\n        // End loop over dy\n\n        setOutput(accumulator);\n      }\n    "},ha=function(t,e,n,r){this.variableNames=["A"],this.outputShape=[];var o=t[0],i=t[1],a=t[2],s=t[3];this.outputShape=[o,e,n,s];var u=[r&&e>1?i-1:i,r&&n>1?a-1:a],c=[r&&e>1?e-1:e,r&&n>1?n-1:n];this.userCode="\n      const vec2 effectiveInputOverOutputRatioRC = vec2(\n          "+u[0]/c[0]+",\n          "+u[1]/c[1]+");\n      const vec2 inputShapeRC = vec2("+i+".0, "+a+".0);\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n        ivec2 yRC = coords.yz;\n\n        // Fractional source index.\n        vec2 sourceFracIndexRC = vec2(yRC) * effectiveInputOverOutputRatioRC;\n\n        // Compute the four integer indices.\n        ivec2 sourceFloorRC = ivec2(sourceFracIndexRC);\n        ivec2 sourceCeilRC = ivec2(\n          min(inputShapeRC - 1.0, ceil(sourceFracIndexRC)));\n\n        float topLeft = getA(b, sourceFloorRC.x, sourceFloorRC.y, d);\n        float bottomLeft = getA(b, sourceCeilRC.x, sourceFloorRC.y, d);\n        float topRight = getA(b, sourceFloorRC.x, sourceCeilRC.y, d);\n        float bottomRight = getA(b, sourceCeilRC.x, sourceCeilRC.y, d);\n\n        vec2 fracRC = sourceFracIndexRC - vec2(sourceFloorRC);\n\n        float top = topLeft + (topRight - topLeft) * fracRC.y;\n        float bottom = bottomLeft + (bottomRight - bottomLeft) * fracRC.y;\n        float newValue = top + (bottom - top) * fracRC.x;\n\n        setOutput(newValue);\n      }\n    "},fa=function(t,e,n,r){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=[];var o=t[0],i=t[1],a=t[2],s=t[3];this.outputShape=[o,e,n,s];var u=[r&&e>1?i-1:i,r&&n>1?a-1:a],c=[r&&e>1?e-1:e,r&&n>1?n-1:n];this.userCode="\n      const vec3 effectiveInputOverOutputRatioRC = vec3(\n          "+u[0]/c[0]+",\n          "+u[1]/c[1]+",\n          "+u[1]/c[1]+");\n      const vec3 inputShapeRC = vec3("+i+".0, "+a+".0,\n                                     "+a+".0);\n\n      float getAValue(int b, int r, int c, int d) {\n        return getChannel(getA(b, r, c, d), vec2(c, d));\n      }\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n        // Calculate values for next column in yRC.z.\n        ivec3 yRC = coords.yzz + ivec3(0, 0, 1);\n\n        // Fractional source index.\n        vec3 sourceFracIndexRC = vec3(yRC) * effectiveInputOverOutputRatioRC;\n\n        // Compute the four integer indices.\n        ivec3 sourceFloorRC = ivec3(sourceFracIndexRC);\n        ivec3 sourceCeilRC = ivec3(\n          min(inputShapeRC - 1.0, ceil(sourceFracIndexRC)));\n\n        // Should we calculate next column and row elements in 2x2 packed cell.\n        bool hasNextCol = d < "+(s-1)+";\n        bool hasNextRow = coords.z < "+(n-1)+";\n\n        // In parallel, construct four corners for all four components in\n        // packed 2x2 cell.\n        vec4 topLeft = vec4(\n          getAValue(b, sourceFloorRC.x, sourceFloorRC.y, d),\n          hasNextCol ? getAValue(b, sourceFloorRC.x, sourceFloorRC.y, d + 1)\n                     : 0.0,\n          hasNextRow ? getAValue(b, sourceFloorRC.x, sourceFloorRC.z, d)\n                     : 0.0,\n          (hasNextRow && hasNextCol) ?\n            getAValue(b, sourceFloorRC.x, sourceFloorRC.z, d + 1) : 0.0);\n\n        vec4 bottomLeft = vec4(\n          getAValue(b, sourceCeilRC.x, sourceFloorRC.y, d),\n          hasNextCol ? getAValue(b, sourceCeilRC.x, sourceFloorRC.y, d + 1)\n                     : 0.0,\n          hasNextRow ? getAValue(b, sourceCeilRC.x, sourceFloorRC.z, d)\n                     : 0.0,\n          (hasNextRow && hasNextCol) ?\n            getAValue(b, sourceCeilRC.x, sourceFloorRC.z, d + 1) : 0.0);\n\n        vec4 topRight = vec4(\n          getAValue(b, sourceFloorRC.x, sourceCeilRC.y, d),\n          hasNextCol ? getAValue(b, sourceFloorRC.x, sourceCeilRC.y, d + 1)\n                     : 0.0,\n          hasNextRow ? getAValue(b, sourceFloorRC.x, sourceCeilRC.z, d)\n                     : 0.0,\n          (hasNextRow && hasNextCol) ?\n            getAValue(b, sourceFloorRC.x, sourceCeilRC.z, d + 1) : 0.0);\n\n        vec4 bottomRight = vec4(\n          getAValue(b, sourceCeilRC.x, sourceCeilRC.y, d),\n          hasNextCol ? getAValue(b, sourceCeilRC.x, sourceCeilRC.y, d + 1)\n                     : 0.0,\n          hasNextRow ? getAValue(b, sourceCeilRC.x, sourceCeilRC.z, d)\n                     : 0.0,\n          (hasNextRow && hasNextCol) ?\n            getAValue(b, sourceCeilRC.x, sourceCeilRC.z, d + 1) : 0.0);\n\n        vec3 fracRC = sourceFracIndexRC - vec3(sourceFloorRC);\n\n        vec4 top = mix(topLeft, topRight, fracRC.yyzz);\n        vec4 bottom = mix(bottomLeft, bottomRight, fracRC.yyzz);\n        vec4 newValue = mix(top, bottom, fracRC.x);\n\n        setOutput(newValue);\n      }\n    "},pa=function(t,e,n){this.variableNames=["dy"],this.outputShape=[],this.outputShape=e.shape;var r=e.shape,o=r[1],i=r[2],a=t.shape,s=a[1],u=a[2],c=[n&&s>1?o-1:o,n&&u>1?i-1:i],l=[n&&s>1?s-1:s,n&&u>1?u-1:u],h=c[0]/l[0],f=c[1]/l[1],p=1/h,d=1/f,v=2*Math.ceil(p)+2,m=2*Math.ceil(d)+2;this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n        int r = coords[1];\n        int c = coords[2];\n\n        float accumulator = 0.0;\n\n        const float heightScale = float("+h+");\n        const float widthScale = float("+f+");\n\n        const float invHeightScale = float("+p+");\n        const float invWidthScale = float("+d+");\n\n        const int winHeight = int("+v+");\n        const int winWidth = int("+m+");\n\n        // Compute bounds for where in dy we will look\n        float startRLerp = floor(float(r) * invHeightScale);\n        int startDyR = int(floor(startRLerp - float(winHeight / 2)));\n\n        float startCLerp = floor(float(c) * invWidthScale);\n        int startDyC = int(floor(startCLerp - float(winWidth / 2)));\n\n        // Loop over dy\n        for (int dyROffset = 0; dyROffset < winHeight; dyROffset++) {\n          int dyR = dyROffset + startDyR;\n\n          // Guard against the window exceeding the bounds of dy\n          if (dyR < 0 || dyR >= "+s+") {\n            continue;\n          }\n\n          for (int dyCOffset = 0; dyCOffset < winWidth; dyCOffset++) {\n            int dyC = dyCOffset + startDyC;\n\n            // Guard against the window exceeding the bounds of dy\n            if (dyC < 0 || dyC >= "+u+") {\n              continue;\n            }\n\n            float sourceFracRow =\n              float("+c[0]+") *\n                (float(dyR) / float("+l[0]+"));\n\n            float sourceFracCol =\n                float("+c[1]+") *\n                  (float(dyC) / float("+l[1]+"));\n\n            int sourceNearestRow = int(min(\n                float(int("+o+") - 1),\n                "+n+" ? float(round(sourceFracRow)) :\n                                  float(floor(sourceFracRow))));\n\n            int sourceNearestCol = int(min(\n                float(int("+i+") - 1),\n                "+n+" ? float(round(sourceFracCol)) :\n                                  float(floor(sourceFracCol))));\n\n            if (r == sourceNearestRow && c == sourceNearestCol) {\n              accumulator += getDy(b, dyR, dyC, d);\n            }\n          }\n        }\n        // End loop over dy\n\n        setOutput(accumulator);\n      }\n    "},da=function(t,e,n,r){this.variableNames=["A"],this.outputShape=[];var o=t[0],i=t[1],a=t[2],s=t[3];this.outputShape=[o,e,n,s];var u=[r&&e>1?i-1:i,r&&n>1?a-1:a],c=[r&&e>1?e-1:e,r&&n>1?n-1:n],l=r?"0.5":"0.0";this.userCode="\n      const vec2 effectiveInputOverOutputRatioRC = vec2(\n          "+u[0]/c[0]+",\n          "+u[1]/c[1]+");\n      const vec2 inputShapeRC = vec2("+i+".0, "+a+".0);\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n        ivec2 yRC = coords.yz;\n\n        // Fractional source index.\n        vec2 sourceFracIndexRC = vec2(yRC) * effectiveInputOverOutputRatioRC;\n\n        // Compute the coordinators of nearest neighbor point.\n        ivec2 sourceNearestRC = ivec2(\n          min(inputShapeRC - 1.0, floor(sourceFracIndexRC + "+l+")));\n\n        float newValue = getA(b, sourceNearestRC.x, sourceNearestRC.y, d);\n\n        setOutput(newValue);\n      }\n    "},va=function(t,e){this.variableNames=["x"];var n=t.length;if(n>4)throw new Error("WebGL backend: Reverse of rank-"+n+" tensor is not yet supported");if(this.outputShape=t,1!==n){var r=t.map((function(n,r){return function(n){return-1!==e.indexOf(n)&&1!==t[n]?t[n]+" - coords["+n+"] - 1":"coords["+n+"]"}(r)})).join(","),o=Oo(n);this.userCode="\n      void main() {\n        "+o+" coords = getOutputCoords();\n        setOutput(getX("+r+"));\n      }\n    "}else this.userCode="\n        void main() {\n          int coord = getOutputCoords();\n          setOutput(getX("+t[0]+" - coord - 1));\n        }\n      "},ma=function(t,e){this.variableNames=["x"],this.packedInputs=!0,this.packedOutput=!0;var n=t.length;if(n>4)throw new Error("WebGL backend: Reverse of rank-"+n+" tensor is not yet supported");this.outputShape=t;var r=wo("rc",n),o=r[n-1]+" + 1 < "+this.outputShape[n-1],i=r[n-2]+" + 1 < "+this.outputShape[n-2],a=Oo(n);function s(n){var r=t.map((function(r,o){return function(n,r){return-1!==e.indexOf(n)&&1!==t[n]?t[n]+" - "+r[n]+" - 1":""+r[n]}(o,n)}));return"getChannel(getX("+r.join(",")+"), vec2("+r.slice(-2).join(",")+"))"}this.userCode=1===n?"\n        void main(){\n          int rc = getOutputCoords();\n          vec4 result = vec4(0.);\n          result.r = getChannel(getX("+t[0]+" - rc - 1),\n            "+t[0]+" - rc - 1);\n          if("+o+"){\n              result.g = getChannel(getX("+t[0]+" - (rc  + 1) - 1),\n                "+t[0]+" - (rc  + 1) - 1);\n          }\n          setOutput(result);\n        }\n      ":"\n        void main() {\n          "+a+" rc = getOutputCoords();\n          vec4 result = vec4(0.);\n          result.r = "+function(t){return s(t)}(r.slice())+";\n          if("+o+"){\n            result.g = "+function(t){return t[n-1]="("+t[n-1]+" + 1)",s(t)}(r.slice())+";\n          }\n          if("+i+") {\n            result.b = "+function(t){return t[n-2]="("+t[n-2]+" + 1)",s(t)}(r.slice())+";\n            if("+o+") {\n              result.a = "+function(t){return t[n-1]="("+t[n-1]+" + 1)",t[n-2]="("+t[n-2]+" + 1)",s(t)}(r.slice())+";\n            }\n          }\n          setOutput(result);\n        }\n    "},ga=function(t,e,n,r,o,i,a){void 0===a&&(a=!0),this.variableNames=["updates","indices","defaultValue"],this.outputShape=i;var s=Oo(o.length),u=Oo(i.length),c="";1===n?c="i":2===n&&(c="i, j");var l="getIndices("+c+")",h="";1===r?h="i":2===r&&(h="i, coords[1]");var f="getUpdates("+h+")",p=e>1?"strides[j]":"strides";this.userCode="\n        "+s+" strides = "+s+"("+o+");\n\n        void main() {\n          "+u+" coords = getOutputCoords();\n          float sum = 0.0;\n          bool found = false;\n          for (int i = 0; i < "+t+"; i++) {\n            int flattenedIndex = 0;\n            for (int j = 0; j < "+e+"; j++) {\n              int index = round("+l+");\n              flattenedIndex += index * "+p+";\n            }\n            if (flattenedIndex == coords[0]) {\n              sum += "+f+";\n              found = true;\n            }\n          }\n          setOutput(mix(getDefaultValue(), sum, float(found)));\n        }\n      "},ya=function(t,e){this.variableNames=["x","segmentIds"];var n=t.windowSize,r=t.batchSize,o=t.inSize,i=t.numSegments,a=i*Math.ceil(o/n);this.outputShape=[r,a];var s=4*Math.floor(n/4),u=n%4,c="\n        sumValue += dot(values, segFilter);\n    ",l="";o%n>0&&(l="\n        if (inIdx < 0 || inIdx >= "+o+") {\n          return initializationValue;\n        }\n      ");var h="";o%n>0&&(h="\n        if (inIdx < 0 || inIdx >= "+o+") {\n          return -1.0;\n        }\n      "),this.userCode="\n      const float initializationValue = 0.0;\n\n      float getValue(int batch, int inIdx) {\n        "+l+"\n        return getX(batch, inIdx);\n      }\n\n      float getSegmentIdAtIndex(int inIdx) {\n        "+h+"\n        return getSegmentIds(inIdx);\n      }\n\n      void main() {\n        ivec2 coords = getOutputCoords();\n        int batch = coords[0];\n        int outIdx = coords[1];\n        int inOffset = int(floor(float(outIdx) / float(\n          "+i+")) * float("+n+"));\n        int currentSeg = int(mod(float(outIdx), float("+i+")));\n\n        float sumValue = 0.0;\n\n        for (int i = 0; i < "+s+"; i += 4) {\n          int inIdx = inOffset + i;\n          vec4 values = vec4(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            getValue(batch, inIdx + 2),\n            getValue(batch, inIdx + 3)\n          );\n\n          vec4 segFilter = vec4(\n            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 2)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 3)) == currentSeg ? 1 : 0\n          );\n\n          "+c+"\n        }\n\n        int inIdx = inOffset + "+s+";\n        if ("+(1===u)+") {\n          vec4 values = vec4(\n            getValue(batch, inIdx),\n            initializationValue,\n            initializationValue,\n            initializationValue\n          );\n\n          int inIdxSeg = int(getSegmentIdAtIndex(inIdx));\n\n          vec4 segFilter = vec4(\n            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,\n            0,\n            0,\n            0\n          );\n\n          "+c+"\n        } else if ("+(2===u)+") {\n          vec4 values = vec4(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            initializationValue,\n            initializationValue\n          );\n\n          vec4 segFilter = vec4(\n            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,\n              0,\n              0\n          );\n\n          "+c+"\n        } else if ("+(3===u)+") {\n          vec4 values = vec4(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            getValue(batch, inIdx + 2),\n            initializationValue\n          );\n\n          vec4 segFilter = vec4(\n            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 2)) == currentSeg ? 1 : 0,\n            0\n          );\n\n          "+c+"\n        }\n        setOutput(sumValue);\n      }\n    "},xa=function(t,e,n){var r,o;if(this.variableNames=["c","a","b"],this.outputShape=e,n>4)throw Error("Where for rank "+n+" is not yet supported");if(1===n)o="resRC",r="resRC";else{for(var i=["resRC.x","resRC.y","resRC.z","resRC.w"],a=[],s=[],u=0;u<e.length;u++)s.push(""+i[u]),u<t&&a.push(""+i[u]);r=a.join(),o=s.join()}var c=Oo(n);this.userCode="\n      void main() {\n        "+c+" resRC = getOutputCoords();\n        float cVal = getC("+r+");\n        if (cVal >= 1.0) {\n          setOutput(getA("+o+"));\n        } else {\n          setOutput(getB("+o+"));\n        }\n      }\n    "},ba=function(){function t(t){this.variableNames=["source"],this.outputShape=t,this.rank=t.length;var e,n=Oo(this.rank),r="uniform int start["+this.rank+"];",o=function(t){if(1===t)return"sourceLoc";if(t<=6)return wa.slice(0,t).map((function(t){return"sourceLoc."+t})).join(",");throw Error("Slicing for rank "+t+" is not yet supported")}(this.rank);e="\n        "+n+" sourceLoc;\n        "+n+" coords = getOutputCoords();\n        "+t.map((function(t,e){return"sourceLoc."+wa[e]+" = start["+e+"] + coords."+wa[e]+";"})).join("\n")+"\n      ",this.userCode="\n      "+r+"\n      void main() {\n        "+e+"\n        setOutput(getSource("+o+"));\n      }\n    "}return t.prototype.getCustomSetupFunc=function(t){var e=this;if(t.length!==this.rank)throw Error("The rank ("+this.rank+") of the program must match the length of start ("+t.length+")");return function(n,r){null==e.startLoc&&(e.startLoc=n.getUniformLocationNoThrow(r,"start"),null==e.startLoc)||n.gl.uniform1iv(e.startLoc,t)}},t}(),wa=["x","y","z","w","u","v"],Ca=function(){function t(t){this.variableNames=["source"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t,this.rank=t.length;var e=Oo(this.rank),n=wo("coords",this.rank),r=wo("sourceLoc",this.rank),o=1===this.rank?"sourceLoc":"vec2("+r.slice(-2).join()+")",i="getChannel(getSource("+r.join()+"), "+o+")",a="\n      result.x = "+i+";\n      if (++"+n[this.rank-1]+" < "+t[this.rank-1]+") {\n        ++"+r[this.rank-1]+";\n        result.y = "+i+";\n        --"+r[this.rank-1]+";\n      }\n    ",s=1===this.rank?"":"\n      --"+n[this.rank-1]+";\n      if (++"+n[this.rank-2]+" < "+t[this.rank-2]+") {\n        ++"+r[this.rank-2]+";\n        result.z = "+i+";\n        if (++"+n[this.rank-1]+" < "+t[this.rank-1]+") {\n          ++"+r[this.rank-1]+";\n          result.w = "+i+";\n        }\n      }\n    ",u=this.rank<=4?"sourceLoc = coords +\n            "+e+"("+t.map((function(t,e){return"start["+e+"]"})).join()+");":t.map((function(t,e){return r[e]+" = "+n[e]+" + start["+e+"];"})).join("\n");this.userCode="\n      uniform int start["+this.rank+"];\n      void main() {\n        "+e+" coords = getOutputCoords();\n        "+e+" sourceLoc;\n        "+u+"\n        vec4 result = vec4(0.);\n        "+a+"\n        "+s+"\n        setOutput(result);\n      }\n    "}return t.prototype.getCustomSetupFunc=function(t){var e=this;if(t.length!==this.rank)throw Error("The rank ("+this.rank+") of the program must match the length of start ("+t.length+")");return function(n,r){null==e.startLoc&&(e.startLoc=n.getUniformLocationNoThrow(r,"start"),null==e.startLoc)||n.gl.uniform1iv(e.startLoc,t)}},t}(),Ea=function(t,e,n){this.variableNames=["x"],this.outputShape=n;var r=n.length,o=Oo(n.length),i=Oo(n.length),a="";if(1===r)a="coords * strides + begin";else{var s=0;a=n.map((function(t,e){return s++,1===n.length?"coords * strides["+e+"] + begin["+e+"]":"coords["+(s-1)+"] * strides["+e+"] + begin["+e+"]"})).join(",")}this.userCode="\n      "+o+" begin = "+o+"("+t+");\n      "+o+" strides = "+o+"("+e+");\n\n      void main() {\n        "+i+" coords = getOutputCoords();\n        setOutput(getX("+a+"));\n      }\n    "},_a=function(){function t(t){this.gpgpu=t,this.numUsedTextures=0,this.numFreeTextures=0,this.freeTextures={},this.logEnabled=!1,this.usedTextures={}}return t.prototype.acquireTexture=function(t,e,n){var r,o=Ia(e,n),i=Ra(t,o,n);if(i in this.freeTextures||(this.freeTextures[i]=[]),i in this.usedTextures||(this.usedTextures[i]=[]),this.freeTextures[i].length>0){this.numFreeTextures--,this.numUsedTextures++,this.log();var a=this.freeTextures[i].shift();return this.usedTextures[i].push(a),a}return this.numUsedTextures++,this.log(),o===zt.PACKED_2X2_FLOAT32?r=this.gpgpu.createPackedMatrixTexture(t[0],t[1]):o===zt.PACKED_2X2_FLOAT16?r=this.gpgpu.createFloat16PackedMatrixTexture(t[0],t[1]):o===zt.UNPACKED_FLOAT32?r=this.gpgpu.createFloat32MatrixTexture(t[0],t[1]):o===zt.UNPACKED_FLOAT16?r=this.gpgpu.createFloat16MatrixTexture(t[0],t[1]):o===zt.PACKED_4X1_UNSIGNED_BYTE&&(r=this.gpgpu.createUnsignedBytesMatrixTexture(t[0],t[1])),this.usedTextures[i].push(r),r},t.prototype.releaseTexture=function(t,e,n,r){if(null!=this.freeTextures){var o=Ra(e,Ia(n,r),r);o in this.freeTextures||(this.freeTextures[o]=[]),this.freeTextures[o].push(t),this.numFreeTextures++,this.numUsedTextures--;var i=this.usedTextures[o],a=i.indexOf(t);if(a<0)throw new Error("Cannot release a texture that was never provided by this texture manager");i.splice(a,1),this.log()}},t.prototype.log=function(){if(this.logEnabled){var t=this.numFreeTextures+this.numUsedTextures;console.log("Free/Used",this.numFreeTextures+" / "+this.numUsedTextures,"("+t+")")}},t.prototype.getNumUsedTextures=function(){return this.numUsedTextures},t.prototype.getNumFreeTextures=function(){return this.numFreeTextures},t.prototype.dispose=function(){var t=this;if(null!=this.freeTextures){for(var e in this.freeTextures)this.freeTextures[e].forEach((function(e){t.gpgpu.deleteMatrixTexture(e)}));for(var e in this.usedTextures)this.usedTextures[e].forEach((function(e){t.gpgpu.deleteMatrixTexture(e)}));this.freeTextures=null,this.usedTextures=null,this.numUsedTextures=0,this.numFreeTextures=0}},t}();function Ia(t,e){if(t===Wt.UPLOAD)return zt.PACKED_2X2_FLOAT32;if(t===Wt.RENDER||null==t)return function(t){return f().getBool("WEBGL_RENDER_FLOAT32_ENABLED")?t?zt.PACKED_2X2_FLOAT32:zt.UNPACKED_FLOAT32:t?zt.PACKED_2X2_FLOAT16:zt.UNPACKED_FLOAT16}(e);if(t===Wt.DOWNLOAD||t===Wt.PIXELS)return zt.PACKED_4X1_UNSIGNED_BYTE;throw new Error("Unknown logical texture type "+t)}function Ra(t,e,n){return t[0]+"_"+t[1]+"_"+e+"_"+n}var Sa=function(t,e){this.variableNames=["A"];for(var n=new Array(t.length),r=0;r<n.length;r++)n[r]=t[r]*e[r];this.outputShape=n,this.rank=n.length;var o=Oo(this.rank),i=function(t){var e=t.length;if(e>5)throw Error("Tile for rank "+e+" is not yet supported");if(1===e)return"imod(resRC, "+t[0]+")";for(var n=["resRC.x","resRC.y","resRC.z","resRC.w","resRC.u"],r=[],o=0;o<t.length;o++)r.push("imod("+n[o]+", "+t[o]+")");return r.join()}(t);this.userCode="\n      void main() {\n        "+o+" resRC = getOutputCoords();\n        setOutput(getA("+i+"));\n      }\n    "},ka=function(t,e){this.variableNames=["A"];for(var n=new Array(t.length),r=0;r<n.length;r++)n[r]=t[e[r]];this.outputShape=n,this.rank=n.length;var o=Oo(this.rank),i=function(t){var e=t.length;if(e>6)throw Error("Transpose for rank "+e+" is not yet supported");for(var n=["resRC.x","resRC.y","resRC.z","resRC.w","resRC.u","resRC.v"],r=new Array(e),o=0;o<t.length;o++)r[t[o]]=n[o];return r.join()}(e);this.userCode="\n    void main() {\n      "+o+" resRC = getOutputCoords();\n      setOutput(getA("+i+"));\n    }\n    "},Da=function(t,e){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0;for(var n=new Array(t.length),r=0;r<n.length;r++)n[r]=t[e[r]];if(this.outputShape=n,this.rank=n.length,this.rank>6)throw Error("Packed transpose for rank "+this.rank+" is not yet supported.");var o=Oo(this.rank),i=bo("rc",this.rank),a=new Array(this.rank);for(r=0;r<e.length;r++)a[e[r]]=i[r];var s="vec2("+a.slice(-2).join()+")",u="++"+i[this.rank-1]+" < "+n[this.rank-1],c="getChannel(getA("+a.join()+"), "+s+")";this.userCode="\n    void main() {\n      "+o+" rc = getOutputCoords();\n      vec4 result = vec4(0.);\n      result[0] = "+c+";\n      if("+u+") {\n        result[1] = "+c+";\n      }\n      --"+i[this.rank-1]+";\n      if(++"+i[this.rank-2]+" < "+n[this.rank-2]+") {\n        result[2] = "+c+";\n        if("+u+") {\n          result[3] = "+c+";\n        }\n      }\n      setOutput(result);\n    }\n    "},Aa=1.7580993408473768,Ta=1.0507009873554805,Na=function(t,e){this.variableNames=["A"],this.outputShape=t,this.userCode="\n      float unaryOperation(float x) {\n        "+e+"\n      }\n\n      void main() {\n        float x = getAAtOutCoords();\n        float y = unaryOperation(x);\n\n        setOutput(y);\n      }\n    "},Fa="if (isnan(x)) return x;",Ma="return abs(x);",Oa=Fa+"\n  return (x < 0.0) ? 0.0 : x;\n",Pa=Fa+"\n  return (x < 0.0) ? 0.0 : min(6.0, x);\n",Ba="return (x >= 0.0) ? x : (exp(x) - 1.0);",La="\n  // Stable and Attracting Fixed Point (0, 1) for Normalized Weights.\n  // see: https://arxiv.org/abs/1706.02515\n  float scaleAlpha = "+Aa+";\n  float scale = "+Ta+";\n  return (x >= 0.0) ? scale * x : scaleAlpha * (exp(x) - 1.0);\n",Wa="return -x;",za="return ceil(x);",Ua="return floor(x);",Va="return exp(x);",Ga="return exp(x) - 1.0;",Ha=Fa+"\n  return sin(x);\n",ja=Fa+"\n  return cos(x);\n",qa=Fa+"\n  if (abs(x) > 1.) {\n    return NAN;\n  }\n  return asin(x);\n",Ka=Fa+"\n  if (abs(x) > 1.) {\n    return NAN;\n  }\n  return acos(x);\n",Xa=Fa+"\n  return atan(x);\n",$a=Fa+"return log(x + sqrt(x * x + 1.0));",Ya=Fa+"\n  if (x < 1.0) return NAN;\n  return log(x + sqrt(x * x - 1.0));",Ja=Fa+"\n  if ((x < -1.0) || (x > 1.0)) return NAN;\n  return (log(1.0 + x) - log(1.0 - x)) / 2.0;",Qa="return x;",Za="\n  vec4 result = x * vec4(greaterThanEqual(x, vec4(0.0)));\n  bvec4 isNaN = isnan(x);\n\n  result.r = isNaN.r ? x.r : result.r;\n  result.g = isNaN.g ? x.g : result.g;\n  result.b = isNaN.b ? x.b : result.b;\n  result.a = isNaN.a ? x.a : result.a;\n\n  return result;\n",ts="\n  vec4 result = min(x, vec4(6.)) * vec4(greaterThanEqual(x, vec4(0.0)));\n  bvec4 isNaN = isnan(x);\n\n  result.r = isNaN.r ? x.r : result.r;\n  result.g = isNaN.g ? x.g : result.g;\n  result.b = isNaN.b ? x.b : result.b;\n  result.a = isNaN.a ? x.a : result.a;\n\n  return result;\n",es="\n  vec4 result;\n\n  result.r = (x.r >= 0.0) ? x.r : (exp(x.r) - 1.0);\n  result.g = (x.g >= 0.0) ? x.g : (exp(x.g) - 1.0);\n  result.b = (x.b >= 0.0) ? x.b : (exp(x.b) - 1.0);\n  result.a = (x.a >= 0.0) ? x.a : (exp(x.a) - 1.0);\n\n  return result;\n",ns=function(t,e){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t,this.userCode="\n      vec4 unaryOperation(vec4 x) {\n        "+e+"\n      }\n\n      void main() {\n        vec4 x = getAAtOutCoords();\n        vec4 y = unaryOperation(x);\n\n        setOutput(y);\n      }\n    "},rs=function(t){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!1,this.outputShape=t;var e=t.length,n=wo("rc",e),r=Oo(e),o=function(t,e){if(1===t)return"rc";for(var n="",r=0;r<t;r++)n+=e[r],r<t-1&&(n+=",");return n}(e,n),i=n.slice(-2),a=e<=1?"rc":"vec2("+i.join(",")+")";this.userCode="\n      void main() {\n        "+r+" rc = getOutputCoords();\n        vec4 packedInput = getA("+o+");\n\n        setOutput(getChannel(packedInput, "+a+"));\n      }\n    "},os={};function is(t,e){if(void 0===e&&(e=!1),"linear"===t)return"return x;";if("relu"===t)return e?Za:Oa;if("elu"===t)return e?es:Ba;if("relu6"===t)return e?ts:Pa;if("prelu"===t)return e?$o:Ko;throw new Error("Activation "+t+" has not been implemented for the WebGL backend.")}var as=function(t){function e(e){var n,r=t.call(this)||this;if(r.pendingRead=new WeakMap,r.pendingDisposal=new WeakSet,r.dataRefCount=new WeakMap,r.numBytesInGPU=0,r.uploadWaitMs=0,r.downloadWaitMs=0,r.warnedAboutMemory=!1,r.pendingDeletes=0,r.disposed=!1,!f().getBool("HAS_WEBGL"))throw new Error("WebGL is not supported on this device");if(null==e){var o=Ht(f().getNumber("WEBGL_VERSION"));r.binaryCache=((n=f().getNumber("WEBGL_VERSION"))in os||(os[n]={}),os[n]),r.gpgpu=new qi(o),r.canvas=o.canvas,r.gpgpuCreatedLocally=!0}else r.gpgpu=e,r.binaryCache={},r.gpgpuCreatedLocally=!1,r.canvas=e.gl.canvas;return r.textureManager=new _a(r.gpgpu),r.numMBBeforeWarning=null==f().global.screen?1024:f().global.screen.height*f().global.screen.width*window.devicePixelRatio*600/1024/1024,r.texData=new Fr(r,Ot),r}return s(e,t),e.prototype.numDataIds=function(){return this.texData.numDataIds()+(this.cpuBackend?this.cpuBackend.numDataIds():0)-this.pendingDeletes},e.prototype.write=function(t,e,n){if(f().getBool("DEBUG")&&this.checkNumericalProblems(t),"complex64"===n&&null!=t)throw new Error("Cannot write to a complex64 dtype. Please use tf.complex(real, imag).");var r={};return this.texData.set(r,{shape:e,dtype:n,values:t,usage:Wt.UPLOAD}),r},e.prototype.move=function(t,e,n,r){if(f().getBool("DEBUG")&&this.checkNumericalProblems(e),"complex64"===r)throw new Error("Cannot write to a complex64 dtype. Please use tf.complex(real, imag).");this.texData.set(t,{shape:n,dtype:r,values:e,usage:Wt.UPLOAD})},e.prototype.readSync=function(t){var e=this.texData.get(t),n=e.values,r=e.dtype,o=e.complexTensors,i=e.slice,a=e.shape,s=e.isPacked;if(null!=i){var u;u=s?new ns(a,Qa):new Na(a,Qa);var c=this.runWebGLProgram(u,[{dataId:t,shape:a,dtype:r}],r),l=this.readSync(c.dataId);return this.disposeData(c.dataId),l}if(null!=n)return this.convertAndCacheOnCPU(t);if("string"===r)return n;var h,f,p=null!=this.activeTimers;return p&&(h=ot()),f="complex64"===r?to(o.real.dataSync(),o.imag.dataSync()):this.getValuesFromTexture(t),p&&(this.downloadWaitMs+=ot()-h),this.convertAndCacheOnCPU(t,f)},e.prototype.read=function(t){return u(this,void 0,void 0,(function(){var e,n,r,o,i,a,s,u,l,h,p,d,v,m,g,y,x,b,w,C,E,_;return c(this,(function(c){switch(c.label){case 0:if(this.pendingRead.has(t))return e=this.pendingRead.get(t),[2,new Promise((function(t){return e.push(t)}))];if(n=this.texData.get(t),r=n.values,o=n.shape,i=n.slice,a=n.dtype,s=n.complexTensors,u=n.isPacked,null!=i)return void 0,l=u?new ns(o,Qa):new Na(o,Qa),h=this.runWebGLProgram(l,[{dataId:t,shape:o,dtype:a}],a),p=this.read(h.dataId),this.disposeData(h.dataId),[2,p];if(null!=r)return[2,this.convertAndCacheOnCPU(t)];if(!f().getBool("WEBGL_DOWNLOAD_FLOAT_ENABLED")&&2===f().getNumber("WEBGL_VERSION"))throw new Error("tensor.data() with WEBGL_DOWNLOAD_FLOAT_ENABLED=false and WEBGL_VERSION=2 not yet supported.");return d=null,"complex64"!==a&&f().get("WEBGL_BUFFER_SUPPORTED")&&(v=this.decode(t),m=this.texData.get(v.dataId),d=(_=this.gpgpu).createBufferFromTexture.apply(_,[m.texture].concat(qt(o)))),this.pendingRead.set(t,[]),"complex64"===a?[3,2]:[4,this.gpgpu.createAndWaitForFence()];case 1:c.sent(),c.label=2;case 2:return"complex64"!==a?[3,4]:[4,Promise.all([s.real.data(),s.imag.data()])];case 3:return y=c.sent(),x=y[0],b=y[1],g=to(x,b),[3,5];case 4:null==d?g=this.getValuesFromTexture(t):(w=D(o),g=this.gpgpu.downloadFloat32MatrixFromBuffer(d,w)),c.label=5;case 5:return null!=v&&this.disposeData(v.dataId),C=this.convertAndCacheOnCPU(t,g),E=this.pendingRead.get(t),this.pendingRead.delete(t),E.forEach((function(t){return t(C)})),this.pendingDisposal.has(t)&&(this.pendingDisposal.delete(t),this.disposeData(t),this.pendingDeletes--),[2,C]}}))}))},e.prototype.checkNumericalProblems=function(t){if(null!=t)for(var e=0;e<t.length;e++){var n=t[e];if(!Yt(n)){if(f().getBool("WEBGL_RENDER_FLOAT32_CAPABLE"))throw Error("The value "+n+" cannot be represented with your current settings. Consider enabling float32 rendering: 'tf.env().set('WEBGL_RENDER_FLOAT32_ENABLED', true);'");throw Error("The value "+n+" cannot be represented on this device.")}}},e.prototype.getValuesFromTexture=function(t){var e,n=this.texData.get(t),r=n.shape,o=n.dtype,i=n.isPacked,a=D(r);if(f().getBool("WEBGL_DOWNLOAD_FLOAT_ENABLED")){var s=this.decode(t),u=this.texData.get(s.dataId),c=(e=this.gpgpu).downloadMatrixFromPackedTexture.apply(e,[u.texture].concat(qt(r))).subarray(0,a);return this.disposeData(s.dataId),c}var l=f().getBool("WEBGL_PACK")&&!0===i,h=l?Ie(r):r,p=l?new wi(h):new bi(h),d=this.runWebGLProgram(p,[{shape:h,dtype:o,dataId:t}],"float32"),v=this.texData.get(d.dataId),m=this.gpgpu.downloadByteEncodedFloatMatrixFromOutputTexture(v.texture,v.texShape[0],v.texShape[1]).subarray(0,a);return this.disposeData(d.dataId),m},e.prototype.time=function(t){return u(this,void 0,void 0,(function(){var e,n,r,o,i,a,s;return c(this,(function(u){switch(u.label){case 0:return e=this.activeTimers,n=[],r=!1,null==this.programTimersStack?(this.programTimersStack=n,r=!0):this.activeTimers.push(n),this.activeTimers=n,t(),o=k(this.activeTimers.map((function(t){return t.query}))).filter((function(t){return null!=t})),i=k(this.activeTimers.map((function(t){return t.name}))).filter((function(t){return null!=t})),this.activeTimers=e,r&&(this.programTimersStack=null),a={uploadWaitMs:this.uploadWaitMs,downloadWaitMs:this.downloadWaitMs,kernelMs:null,wallMs:null},f().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0?[4,Promise.all(o)]:[3,2];case 1:return s=u.sent(),a.kernelMs=_(s),a.getExtraProfileInfo=function(){return s.map((function(t,e){return{name:i[e],ms:t}})).map((function(t){return t.name+": "+t.ms})).join(", ")},[3,3];case 2:a.kernelMs={error:"WebGL query timers are not supported in this environment."},u.label=3;case 3:return this.uploadWaitMs=0,this.downloadWaitMs=0,[2,a]}}))}))},e.prototype.memory=function(){return{unreliable:!1,numBytesInGPU:this.numBytesInGPU}},e.prototype.startTimer=function(){return f().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0?this.gpgpu.beginQuery():{startMs:ot(),endMs:null}},e.prototype.endTimer=function(t){return f().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0?(this.gpgpu.endQuery(),t):(t.endMs=ot(),t)},e.prototype.getQueryTime=function(t){return u(this,void 0,void 0,(function(){var e;return c(this,(function(n){return f().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0?[2,this.gpgpu.waitForQueryAndGetTime(t)]:[2,(e=t).endMs-e.startMs]}))}))},e.prototype.disposeData=function(t){if(!this.pendingDisposal.has(t)){if(this.pendingRead.has(t))return this.pendingDisposal.add(t),void this.pendingDeletes++;if(this.texData.has(t)){this.releaseGPUData(t);var e=this.texData.get(t).complexTensors;null!=e&&(e.real.dispose(),e.imag.dispose()),this.texData.delete(t)}}},e.prototype.releaseGPUData=function(t){var e=this.texData.get(t),n=e.texture,r=e.dtype,o=e.texShape,i=e.usage,a=e.isPacked,s=e.slice,u=s&&s.origDataId||t,c=this.dataRefCount.get(u);c>1?this.dataRefCount.set(u,c-1):(this.dataRefCount.delete(u),null!=n&&(this.numBytesInGPU-=this.computeBytes(o,r),this.textureManager.releaseTexture(n,o,i,a)));var l=this.texData.get(t);l.texture=null,l.texShape=null,l.isPacked=!1,l.slice=null},e.prototype.getTexture=function(t){return this.uploadToGPU(t),this.texData.get(t).texture},e.prototype.getDataInfo=function(t){return this.texData.get(t)},e.prototype.getCPUBackend=function(){return f().getBool("WEBGL_CPU_FORWARD")?(null==this.cpuBackend&&(this.cpuBackend=Ot.findBackend("cpu")),this.cpuBackend):null},e.prototype.shouldExecuteOnCPU=function(t,e){var n=this;return void 0===e&&(e=128),null!=this.getCPUBackend()&&t.every((function(t){return null==n.texData.get(t.dataId).texture&&t.size<e}))},e.prototype.getGPGPUContext=function(){return this.gpgpu},e.prototype.complex=function(t,e){var n=this.makeOutput(t.shape,"complex64");return this.texData.get(n.dataId).complexTensors={real:Ot.keep(t.clone()),imag:Ot.keep(e.clone())},n},e.prototype.real=function(t){return this.texData.get(t.dataId).complexTensors.real.clone()},e.prototype.imag=function(t){return this.texData.get(t.dataId).complexTensors.imag.clone()},e.prototype.slice=function(t,e,n){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.slice(t,e,n);if(0===D(n))return cn([],n,t.dtype);var r=this.texData.get(t.dataId).isPacked,o=kr(t.shape,e,n);if(r||!o){var i=f().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new Ca(n):new ba(n),a=i.getCustomSetupFunc(e);return this.compileAndRun(i,[t],null,a)}return this.uploadToGPU(t.dataId),this.shallowSlice(t,e,n)},e.prototype.shallowSlice=function(t,e,n){var r=this.texData.get(t.dataId),o=this.makeOutput(n,t.dtype),i=this.texData.get(o.dataId);Object.assign(i,r),i.shape=n,i.dtype=t.dtype;var a=Dr(e,t.strides);r.slice&&(a+=r.slice.flatOffset),i.slice={flatOffset:a,origDataId:r.slice&&r.slice.origDataId||t.dataId};var s=this.dataRefCount.get(i.slice.origDataId)||1;return this.dataRefCount.set(i.slice.origDataId,s+1),o},e.prototype.stridedSlice=function(t,e,n,r){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.stridedSlice(t,e,n,r);var o=Ir(e,n,r);if(o.some((function(t){return 0===t})))return cn([],o);var i=new Ea(e,r,o);return this.compileAndRun(i,[t])},e.prototype.reverse=function(t,e){var n=f().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new ma(t.shape,e):new va(t.shape,e);return this.compileAndRun(n,[t])},e.prototype.concat=function(t,e){if("complex64"===t[0].dtype){var n=t.map((function(t){return sn(t)})),r=t.map((function(t){return un(t)}));return an(this.concat(n,e),this.concat(r,e))}if(this.shouldExecuteOnCPU(t))return this.cpuBackend.concat(t,e);if(1===t.length)return t[0];if(t.length>f().getNumber("WEBGL_MAX_TEXTURES_IN_SHADER")){var o=Math.floor(t.length/2),i=this.concat(t.slice(0,o),e),a=this.concat(t.slice(o),e);return this.concat([i,a],e)}if(f().getBool("WEBGL_PACK_ARRAY_OPERATIONS")&&t[0].rank>1){var s=new ei(t.map((function(t){return t.shape})),e);return this.compileAndRun(s,t)}var u=rn(t.map((function(t){return t.shape})),e),c=t.map((function(t){return t.as2D(-1,D(t.shape.slice(e)))})),l=new ti(c.map((function(t){return t.shape})));return this.compileAndRun(l,c).reshape(u)},e.prototype.neg=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.neg(t);if(f().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,Wa,t.dtype);var e=new Na(t.shape,Wa);return this.compileAndRun(e,[t])},e.prototype.batchMatMul=function(t,e,n,r){var o=n?t.shape[2]:t.shape[1],i=r?e.shape[1]:e.shape[2],a=n?t.shape[1]:t.shape[2],s=t.shape[0];if((1===o||1===i)&&a>1e3){n&&(t=t.transpose([0,2,1])),r&&(e=e.transpose([0,2,1]));var u=1===i?t:t.as3D(s,a,1),c=1===i?2:1,l=1===i?e.as3D(s,1,a):e;return this.multiply(u,l).sum(c,!0)}var h=St(t.dtype,e.dtype),f=new ta(t.shape,[s,o,i],n,r);return this.compileAndRun(f,[t,e],h)},e.prototype.fusedBatchMatMul=function(t){var e=t.a,n=t.b,r=t.transposeA,o=t.transposeB,i=t.bias,a=t.activation,s=t.preluActivationWeights,u=r?e.shape[2]:e.shape[1],c=o?n.shape[1]:n.shape[2],l=e.shape[0],h=St(e.dtype,n.dtype),f=null!=i,p=null!=s,d=a?is(a,!0):null,v=new ta(e.shape,[l,u,c],r,o,f,d,p),m=[e,n];return i&&m.push(i),s&&m.push(s),this.compileAndRun(v,m,h)},e.prototype.multiply=function(t,e){if("complex64"===t.dtype){var n=this.texData.get(t.dataId),r=this.texData.get(e.dataId),o=new Go("return areal * breal - aimag * bimag;",t.shape,e.shape),i=new Go("return areal * bimag + aimag * breal;",t.shape,e.shape),a=[this.makeComplexComponentTensorInfo(t,n.complexTensors.real),this.makeComplexComponentTensorInfo(t,n.complexTensors.imag),this.makeComplexComponentTensorInfo(e,r.complexTensors.real),this.makeComplexComponentTensorInfo(e,r.complexTensors.imag)],s=this.compileAndRun(o,a),u=this.compileAndRun(i,a),c=this.complex(s,u);return s.dispose(),u.dispose(),c}if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.multiply(t,e);if(f().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,qo,t.dtype);var l=new Xo(qo,t.shape,e.shape);return this.compileAndRun(l,[t,e],t.dtype)},e.prototype.batchNormalization=function(t,e,n,r,o,i){var a=[t,e,n],s=null;null!=i&&(s=i.shape,a.push(i));var u=null;if(null!=o&&(u=o.shape,a.push(o)),f().getBool("WEBGL_PACK_NORMALIZATION")){var c=new Vo(t.shape,e.shape,n.shape,s,u,r);return this.compileAndRun(c,a)}var l=new Uo(t.shape,e.shape,n.shape,s,u,r);return this.compileAndRun(l,a)},e.prototype.localResponseNormalization4D=function(t,e,n,r,o){var i=f().getBool("WEBGL_PACK_NORMALIZATION")?new Ji(t.shape,e,n,r,o):new $i(t.shape,e,n,r,o);return this.compileAndRun(i,[t])},e.prototype.LRNGrad=function(t,e,n,r,o,i,a){var s=new Yi(e.shape,r,o,i,a);return this.compileAndRun(s,[e,n,t])},e.prototype.tile=function(t,e){if("string"===t.dtype){var n=this.readSync(t.dataId).map((function(t){return st(t)}));return po(zn(t.shape,t.dtype,n),e)}var r=new Sa(t.shape,e);return this.compileAndRun(r,[t])},e.prototype.pad=function(t,e,n){var r=f().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new ia(t.shape,e,n):new oa(t.shape,e,n);return this.compileAndRun(r,[t])},e.prototype.transpose=function(t,e){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.transpose(t,e);var n=f().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new Da(t.shape,e):new ka(t.shape,e);return this.compileAndRun(n,[t])},e.prototype.gather=function(t,e,n){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.gather(t,e,n);var r=new Ri(t.shape,e.size,n);return this.compileAndRun(r,[t,e])},e.prototype.batchToSpaceND=function(t,e,n){I(t.rank<=4,(function(){return"batchToSpaceND for rank > 4 with a WebGL backend not implemented yet"}));var r=e.reduce((function(t,e){return t*e})),o=pr(t.shape,e,r),i=dr(o.length,e.length),a=vr(t.shape,e,r),s=mr(n,e.length),u=gr(a,n,e.length);return t.reshape(o).transpose(i).reshape(a).slice(s,u)},e.prototype.spaceToBatchND=function(t,e,n){I(t.rank<=4,(function(){return"spaceToBatchND for rank > 4 with a WebGL backend not implemented yet"}));var r=e.reduce((function(t,e){return t*e})),o=[[0,0]];o.push.apply(o,n);for(var i=1+e.length;i<t.shape.length;++i)o.push([0,0]);var a=t.pad(o),s=pr(a.shape,e,r,!1),u=dr(s.length,e.length,!1),c=vr(a.shape,e,r,!1);return a.reshape(s).transpose(u).reshape(c)},e.prototype.reduce=function(t,e,n){var r=t.shape[0],o=t.shape[1],i=xr(o),a=new ua({windowSize:i,inSize:o,batchSize:r},e),s=this.compileAndRun(a,[t],n);return 1===s.shape[1]?s:this.reduce(s,e,n)},e.prototype.argReduce=function(t,e,n){void 0===n&&(n=null);var r=t.shape[0],o=t.shape[1];null!=n&&(r=n.shape[0],o=n.shape[1]);var i=xr(o),a=new xo({windowSize:i,inSize:o,batchSize:r},e,null==n),s=[t];null!=n&&s.push(n);var u=this.compileAndRun(a,s,"int32");return 1===u.shape[1]?u:this.argReduce(t,e,u)},e.prototype.argReducePacked=function(t,e,n){void 0===n&&(n=null);var r=null!=n?n.shape:t.shape,o=xr(r[r.length-1]),i=new Lo(r,o,e,null==n),a=null==n?[t]:[t,n],s=this.compileAndRun(i,a,"int32");return s.rank===t.rank?this.argReducePacked(t,e,s):s},e.prototype.sum=function(t,e){Qe("sum",e,t.rank);var n=Ye(t.shape,e),r=n[0],o=D(n[1]),i=t.as2D(-1,o),a=kt(t.dtype);return this.reduce(i,"sum",a).reshape(r)},e.prototype.prod=function(t,e){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.prod(t,e);var n=Ye(t.shape,e),r=n[0],o=D(n[1]),i=t.as2D(-1,o),a=kt(t.dtype);return this.reduce(i,"prod",a).reshape(r)},e.prototype.unsortedSegmentSum=function(t,e,n){var r=0,o=Ze([r],t.rank),i=t;null!=o&&(i=t.transpose(o),r=en(1,t.rank)[0]);var a=function(t,e,n){for(var r=[],o=t.length,i=0;i<o;i++)i!==e?r.push(t[i]):r.push(n);return r}(i.shape,r,n),s=D([i.shape[r]]),u=i.as2D(-1,s),c=kt(t.dtype),l=this.segOpCompute(u,"unsortedSegmentSum",e,c,n).reshape(a);return null!=o&&(l=l.transpose(tn(o))),l},e.prototype.segOpCompute=function(t,e,n,r,o){var i=t.shape[0],a=t.shape[1],s=function(t,e){var n,r=!1;for(t<=30?(n=t,r=!0):n=Q(t,Math.floor(Math.sqrt(t)));!r;)n>e||n===t?r=!0:n=Q(t,n+1);return n}(a,o),u=new ya({windowSize:s,inSize:a,batchSize:i,numSegments:o},e),c=this.compileAndRun(u,[t,n],r);return c.shape[1]===o?c:(n=xn(0,o).tile([a/s]),this.segOpCompute(c,e,n,r,o))},e.prototype.argMinMaxReduce=function(t,e,n){var r=[e];if(Qe("arg"+n.charAt(0).toUpperCase()+n.slice(1),r,t.rank),!f().getBool("WEBGL_PACK_REDUCE")||t.rank<=2){var o=Ye(t.shape,r),i=o[0],a=D(o[1]),s=t.as2D(-1,a);return this.argReduce(s,n).reshape(i)}return this.argReducePacked(t,n)},e.prototype.argMin=function(t,e){return this.argMinMaxReduce(t,e,"min")},e.prototype.argMax=function(t,e){return this.argMinMaxReduce(t,e,"max")},e.prototype.cumsum=function(t,e,n,r){if(e!==t.rank-1)throw new Error("WebGL cumsum shader expects an inner-most axis="+(t.rank-1)+" but got axis="+e);var o=new di(t.shape,n,r);return this.compileAndRun(o,[t])},e.prototype.equal=function(t,e){if(f().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(equal(a, b));\n","bool");var n=new Xo("return float(a == b);",t.shape,e.shape);return this.compileAndRun(n,[t,e],"bool")},e.prototype.notEqual=function(t,e){if(f().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(notEqual(a, b));\n","bool");var n=new Xo("return float(a != b);",t.shape,e.shape);return this.compileAndRun(n,[t,e],"bool")},e.prototype.less=function(t,e){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.less(t,e);if(f().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(lessThan(a, b));\n","bool");var n=new Xo("return float(a < b);",t.shape,e.shape);return this.compileAndRun(n,[t,e],"bool")},e.prototype.lessEqual=function(t,e){if(f().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(lessThanEqual(a, b));\n","bool");var n=new Xo("return float(a <= b);",t.shape,e.shape);return this.compileAndRun(n,[t,e],"bool")},e.prototype.greater=function(t,e){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.greater(t,e);if(f().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(greaterThan(a, b));\n","bool");var n=new Xo("return float(a > b);",t.shape,e.shape);return this.compileAndRun(n,[t,e],"bool")},e.prototype.greaterEqual=function(t,e){if(f().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(greaterThanEqual(a, b));\n","bool");var n=new Xo("return float(a >= b);",t.shape,e.shape);return this.compileAndRun(n,[t,e],"bool")},e.prototype.logicalNot=function(t){var e=new Na(t.shape,"return float(!(x >= 1.0));");return this.compileAndRun(e,[t])},e.prototype.logicalAnd=function(t,e){if(f().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(\n    vec4(greaterThanEqual(a, vec4(1.0))) *\n    vec4(greaterThanEqual(b, vec4(1.0))));\n","bool");var n=new Xo("return float(a >= 1.0 && b >= 1.0);",t.shape,e.shape);return this.compileAndRun(n,[t,e],"bool")},e.prototype.logicalOr=function(t,e){if(f().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return min(\n    vec4(greaterThanEqual(a, vec4(1.0))) +\n    vec4(greaterThanEqual(b, vec4(1.0))),\n    vec4(1.0));\n","bool");var n=new Xo("return float(a >= 1.0 || b >= 1.0);",t.shape,e.shape);return this.compileAndRun(n,[t,e],"bool")},e.prototype.select=function(t,e,n){var r=new xa(t.rank,e.shape,e.rank);return this.compileAndRun(r,[t,e,n],St(e.dtype,n.dtype))},e.prototype.where=function(t){Ge("tf.where() in webgl locks the UI thread. Call tf.whereAsync() instead");var e=t.dataSync();return mo(t.shape,e)},e.prototype.topk=function(t,e,n){return vo(t.dataSync(),t.shape,t.dtype,e)},e.prototype.min=function(t,e){Qe("min",e,t.rank);var n=Ye(t.shape,e),r=n[0],o=D(n[1]),i=t.as2D(-1,o);return this.reduce(i,"min",i.dtype).reshape(r)},e.prototype.minimum=function(t,e){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.minimum(t,e);var n=f().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new Yo("\n  vec4 result = vec4(min(a, b));\n  vec4 isNaN = min(vec4(isnan(a)) + vec4(isnan(b)), vec4(1.0));\n  \n  result.r = isNaN.r > 0. ? NAN : result.r;\n  result.g = isNaN.g > 0. ? NAN : result.g;\n  result.b = isNaN.b > 0. ? NAN : result.b;\n  result.a = isNaN.a > 0. ? NAN : result.a;\n\n  return result;\n",t.shape,e.shape):new Xo("\n  if (isnan(a)) return a;\n  if (isnan(b)) return b;\n\n  return min(a, b);\n",t.shape,e.shape);return this.compileAndRun(n,[t,e])},e.prototype.mod=function(t,e){var n=f().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new Yo("\n  vec4 result = mod(a, b);\n  vec4 isNaN = vec4(equal(b, vec4(0.0)));\n  \n  result.r = isNaN.r > 0. ? NAN : result.r;\n  result.g = isNaN.g > 0. ? NAN : result.g;\n  result.b = isNaN.b > 0. ? NAN : result.b;\n  result.a = isNaN.a > 0. ? NAN : result.a;\n\n  return result;\n",t.shape,e.shape):new Xo("if (b == 0.0) return NAN;\n  return mod(a, b);",t.shape,e.shape);return this.compileAndRun(n,[t,e])},e.prototype.max=function(t,e){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.max(t,e);Qe("max",e,t.rank);var n=Ye(t.shape,e),r=n[0],o=D(n[1]),i=t.as2D(-1,o);return this.reduce(i,"max",i.dtype).reshape(r)},e.prototype.maximum=function(t,e){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.maximum(t,e);var n=f().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new Yo("\n  vec4 result = vec4(max(a, b));\n  vec4 isNaN = min(vec4(isnan(a)) + vec4(isnan(b)), vec4(1.0));\n  \n  result.r = isNaN.r > 0. ? NAN : result.r;\n  result.g = isNaN.g > 0. ? NAN : result.g;\n  result.b = isNaN.b > 0. ? NAN : result.b;\n  result.a = isNaN.a > 0. ? NAN : result.a;\n\n  return result;\n",t.shape,e.shape):new Xo("\n  if (isnan(a)) return a;\n  if (isnan(b)) return b;\n\n  return max(a, b);\n",t.shape,e.shape);return this.compileAndRun(n,[t,e])},e.prototype.all=function(t,e){Qe("all",e,t.rank);var n=Ye(t.shape,e),r=n[0],o=D(n[1]),i=t.as2D(-1,o);return this.reduce(i,"all",i.dtype).reshape(r)},e.prototype.any=function(t,e){Qe("any",e,t.rank);var n=Ye(t.shape,e),r=n[0],o=D(n[1]),i=t.as2D(-1,o);return this.reduce(i,"any",i.dtype).reshape(r)},e.prototype.realDivide=function(t,e){if(f().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  // vec4 one = vec4(equal(a, b));\n  // return one + (vec4(1.0) - one) * a / b;\n  vec4 result = a / b;\n  if(a.x == b.x) {\n    result.x = 1.;\n  }\n  if(a.y == b.y) {\n    result.y = 1.;\n  }\n  if(a.z == b.z) {\n    result.z = 1.;\n  }\n  if(a.w == b.w) {\n    result.w = 1.;\n  }\n\n  return result;\n","float32",!0);var n=new Xo("\nif (a == b) {\n  return 1.0;\n};\nreturn a / b;",t.shape,e.shape);return this.compileAndRun(n,[t,e],"float32")},e.prototype.floorDiv=function(t,e){if(f().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  ivec4 ia = round(a);\n  ivec4 ib = round(b);\n  bvec4 cond = notEqual(ib, ivec4(0));\n  ivec4 result = ivec4(0);\n  vec4 s = sign(a) * sign(b);\n\n  // Windows (D3D) wants guaranteed non-zero int division at compile-time.\n  if (cond[0]) {\n    result[0] = idiv(ia[0], ib[0], s[0]);\n  }\n  if (cond[1]) {\n    result[1] = idiv(ia[1], ib[1], s[1]);\n  }\n  if (cond[2]) {\n    result[2] = idiv(ia[2], ib[2], s[2]);\n  }\n  if (cond[3]) {\n    result[3] = idiv(ia[3], ib[3], s[3]);\n  }\n  return vec4(result);\n","int32");var n=new Xo("\n  float s = sign(a) * sign(b);\n  int ia = round(a);\n  int ib = round(b);\n  if (ib != 0) {\n    // Windows (D3D) wants guaranteed non-zero int division at compile-time.\n    return float(idiv(ia, ib, s));\n  } else {\n    return NAN;\n  }\n",t.shape,e.shape);return this.compileAndRun(n,[t,e],"int32")},e.prototype.add=function(t,e){if("complex64"===t.dtype&&"complex64"===e.dtype)return this.complexSeparableBinaryOp(t,e,Ho);if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.add(t,e);var n=St(t.dtype,e.dtype);if(f().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,Ho,n);var r=new Xo(Ho,t.shape,e.shape);return this.compileAndRun(r,[t,e],n)},e.prototype.packedUnaryOp=function(t,e,n){var r=new ns(t.shape,e);return this.compileAndRun(r,[t],n)},e.prototype.packedBinaryOp=function(t,e,n,r,o){void 0===o&&(o=!1);var i=new Yo(n,t.shape,e.shape,o);return this.compileAndRun(i,[t,e],r)},e.prototype.complexSeparableBinaryOp=function(t,e,n){var r=this,o=this.texData.get(t.dataId),i=this.texData.get(e.dataId),a=[[o.complexTensors.real,i.complexTensors.real],[o.complexTensors.imag,i.complexTensors.imag]].map((function(o){var i=o[0],a=o[1],s=r.makeComplexComponentTensorInfo(t,i),u=r.makeComplexComponentTensorInfo(e,a),c=new Xo(n,t.shape,e.shape);return r.compileAndRun(c,[s,u],St(i.dtype,a.dtype))})),s=a[0],u=a[1],c=this.complex(s,u);return s.dispose(),u.dispose(),c},e.prototype.makeComplexComponentTensorInfo=function(t,e){return{dataId:e.dataId,dtype:e.dtype,shape:t.shape}},e.prototype.addN=function(t){if(1===t.length)return t[0];if(t.length>f().get("WEBGL_MAX_TEXTURES_IN_SHADER")){var e=Math.floor(t.length/2),n=this.addN(t.slice(0,e)),r=this.addN(t.slice(e));return this.addN([n,r])}var o=t.map((function(t){return t.dtype})).reduce((function(t,e){return St(t,e)})),i=t.map((function(t){return t.shape})),a=f().getBool("WEBGL_PACK")?new yo(t[0].shape,i):new go(t[0].shape,i);return this.compileAndRun(a,t,o)},e.prototype.subtract=function(t,e){if("complex64"===t.dtype&&"complex64"===e.dtype)return this.complexSeparableBinaryOp(t,e,jo);if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.subtract(t,e);var n=St(t.dtype,e.dtype);if(f().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,jo,t.dtype);var r=new Xo(jo,t.shape,e.shape);return this.compileAndRun(r,[t,e],n)},e.prototype.pow=function(t,e){var n=f().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new Yo("\n  // isModRound1 has 1 for components with round(mod(b, 2.0)) == 1, 0 otherwise.\n  vec4 isModRound1 = vec4(equal(round(mod(b, 2.0)), ivec4(1)));\n  vec4 multiplier = sign(a) * isModRound1 + (vec4(1.0) - isModRound1);\n  vec4 result = multiplier * pow(abs(a), b);\n\n  // Ensure that a^0 = 1, including 0^0 = 1 as this correspond to TF and JS\n  bvec4 isExpZero = equal(b, vec4(0.0));\n  result.r = isExpZero.r ? 1.0 : result.r;\n  result.g = isExpZero.g ? 1.0 : result.g;\n  result.b = isExpZero.b ? 1.0 : result.b;\n  result.a = isExpZero.a ? 1.0 : result.a;\n\n  vec4 isNaN = vec4(lessThan(a, vec4(0.0))) * vec4(lessThan(floor(b), b));\n  \n  result.r = isNaN.r > 0. ? NAN : result.r;\n  result.g = isNaN.g > 0. ? NAN : result.g;\n  result.b = isNaN.b > 0. ? NAN : result.b;\n  result.a = isNaN.a > 0. ? NAN : result.a;\n\n  return result;\n",t.shape,e.shape):new Xo("\nif(a < 0.0 && floor(b) < b){\n  return NAN;\n}\nif (b == 0.0) {\n  return 1.0;\n}\nreturn (round(mod(b, 2.0)) != 1) ?\n    pow(abs(a), b) : sign(a) * pow(abs(a), b);\n",t.shape,e.shape),r=St(t.dtype,e.dtype);return this.compileAndRun(n,[t,e],r)},e.prototype.ceil=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.ceil(t);if(f().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,za,t.dtype);var e=new Na(t.shape,za);return this.compileAndRun(e,[t])},e.prototype.floor=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.floor(t);if(f().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,Ua,t.dtype);var e=new Na(t.shape,Ua);return this.compileAndRun(e,[t])},e.prototype.sign=function(t){var e=new Na(t.shape,"\n  if (isnan(x)) { return 0.0; }\n  return sign(x);\n");return this.compileAndRun(e,[t])},e.prototype.isNaN=function(t){var e=new Na(t.shape,"return float(isnan(x));");return this.compileAndRun(e,[t],"bool")},e.prototype.isInf=function(t){var e=new Na(t.shape,"return float(isinf(x));");return this.compileAndRun(e,[t],"bool")},e.prototype.isFinite=function(t){var e=new Na(t.shape,"return float(!isnan(x) && !isinf(x));");return this.compileAndRun(e,[t],"bool")},e.prototype.round=function(t){var e=new Na(t.shape,"\n  // OpenGL ES does not support round function.\n  // The algorithm is based on banker's rounding.\n  float base = floor(x);\n  if ((x - base) < 0.5) {\n    return floor(x);\n  } else if ((x - base) > 0.5) {\n    return ceil(x);\n  } else {\n    if (mod(base, 2.0) == 0.0) {\n      return base;\n    } else {\n      return base + 1.0;\n    }\n  }\n");return this.compileAndRun(e,[t])},e.prototype.exp=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.exp(t);if(f().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,Va,t.dtype);var e=new Na(t.shape,Va);return this.compileAndRun(e,[t])},e.prototype.expm1=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.expm1(t);if(f().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,Ga,t.dtype);var e=new Na(t.shape,Ga);return this.compileAndRun(e,[t])},e.prototype.softmax=function(t,e){var n=B([e],t.shape),r=this.max(t,n),o=Je(r.shape,n),i=this.subtract(t,r.reshape(o)),a=this.exp(i),s=this.sum(a,n).reshape(o);return this.realDivide(a,s)},e.prototype.log=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.log(t);if(f().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,"\n  vec4 result = log(x);\n  vec4 isNaN = vec4(lessThan(x, vec4(0.0)));\n  result.r = isNaN.r == 1.0 ? NAN : result.r;\n  result.g = isNaN.g == 1.0 ? NAN : result.g;\n  result.b = isNaN.b == 1.0 ? NAN : result.b;\n  result.a = isNaN.a == 1.0 ? NAN : result.a;\n\n  return result;\n",t.dtype);var e=new Na(t.shape,"if (x < 0.0) return NAN;\n  return log(x);");return this.compileAndRun(e,[t])},e.prototype.log1p=function(t){var e=new Na(t.shape,"return log(1.0 + x);");return this.compileAndRun(e,[t])},e.prototype.sqrt=function(t){var e=new Na(t.shape,"return sqrt(x);");return this.compileAndRun(e,[t])},e.prototype.rsqrt=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.rsqrt(t);var e=new Na(t.shape,"return inversesqrt(x);");return this.compileAndRun(e,[t])},e.prototype.reciprocal=function(t){var e=new Na(t.shape,"return 1.0 / x;");return this.compileAndRun(e,[t])},e.prototype.relu=function(t){var e;return e=f().getBool("WEBGL_PACK")?new ns(t.shape,Za):new Na(t.shape,Oa),this.compileAndRun(e,[t])},e.prototype.relu6=function(t){var e;return e=f().getBool("WEBGL_PACK")?new ns(t.shape,ts):new Na(t.shape,Pa),this.compileAndRun(e,[t])},e.prototype.prelu=function(t,e){var n=f().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new Yo($o,t.shape,e.shape):new Xo(Ko,t.shape,e.shape);return this.compileAndRun(n,[t,e])},e.prototype.elu=function(t){if(f().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,es,t.dtype);var e=new Na(t.shape,Ba);return this.compileAndRun(e,[t])},e.prototype.eluDer=function(t,e){var n=f().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new Yo("\n  vec4 bGTEZero = vec4(greaterThanEqual(b, vec4(0.)));\n  return (bGTEZero * a) + ((vec4(1.0) - bGTEZero) * (a * (b + vec4(1.0))));\n",t.shape,e.shape):new Xo("return (b >= 1.0) ? a : a * (b + 1.0);",t.shape,e.shape);return this.compileAndRun(n,[t,e])},e.prototype.selu=function(t){var e=new Na(t.shape,La);return this.compileAndRun(e,[t])},e.prototype.int=function(t){var e=new Na(t.shape,"return float(int(x));");return this.compileAndRun(e,[t],"int32")},e.prototype.clip=function(t,e,n){var r,o=(r=f().getBool("WEBGL_PACK_CLIP")?new Qo(t.shape):new Jo(t.shape)).getCustomSetupFunc(e,n);return this.compileAndRun(r,[t],null,o)},e.prototype.abs=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.abs(t);if(f().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,Ma,t.dtype);var e=new Na(t.shape,Ma);return this.compileAndRun(e,[t])},e.prototype.complexAbs=function(t){var e=this.texData.get(t.dataId),n=new Zo(t.shape),r=[this.makeComplexComponentTensorInfo(t,e.complexTensors.real),this.makeComplexComponentTensorInfo(t,e.complexTensors.imag)];return this.compileAndRun(n,r)},e.prototype.sigmoid=function(t){var e=new Na(t.shape,"return 1.0 / (1.0 + exp(-1.0 * x));");return this.compileAndRun(e,[t])},e.prototype.softplus=function(t){var e=new Na(t.shape,"\n  float epsilon = 1.1920928955078125e-7;\n  float threshold = log(epsilon) + 2.0;\n\n  bool too_large = x > -threshold;\n  bool too_small = x < threshold;\n\n  float result;\n  float exp_x = exp(x);\n\n  if (too_large){\n    result = x;\n  }\n  else if (too_small){\n    result = exp_x;\n  }\n  else{\n    result = log(exp_x + 1.0);\n  }\n  return result;\n");return this.compileAndRun(e,[t])},e.prototype.sin=function(t){var e=new Na(t.shape,Ha);return this.compileAndRun(e,[t])},e.prototype.cos=function(t){var e=new Na(t.shape,ja);return this.compileAndRun(e,[t])},e.prototype.tan=function(t){var e=new Na(t.shape,"return tan(x);");return this.compileAndRun(e,[t])},e.prototype.asin=function(t){var e=new Na(t.shape,qa);return this.compileAndRun(e,[t])},e.prototype.acos=function(t){var e=new Na(t.shape,Ka);return this.compileAndRun(e,[t])},e.prototype.atan=function(t){var e=new Na(t.shape,Xa);return this.compileAndRun(e,[t])},e.prototype.atan2=function(t,e){var n=f().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new Yo("\n  vec4 result = atan(a, b);\n  vec4 isNaN = min(vec4(isnan(a)) + vec4(isnan(b)), vec4(1.0));\n  \n  result.r = isNaN.r > 0. ? NAN : result.r;\n  result.g = isNaN.g > 0. ? NAN : result.g;\n  result.b = isNaN.b > 0. ? NAN : result.b;\n  result.a = isNaN.a > 0. ? NAN : result.a;\n\n  return result;\n",t.shape,e.shape):new Xo("\n  if (isnan(a)) return a;\n  if (isnan(b)) return b;\n\n  return atan(a, b);\n",t.shape,e.shape);return this.compileAndRun(n,[t,e])},e.prototype.sinh=function(t){var e=new Na(t.shape,"\n  float e2x = exp(x);\n  return (e2x - 1.0 / e2x) / 2.0;\n");return this.compileAndRun(e,[t])},e.prototype.cosh=function(t){var e=new Na(t.shape,"\n  float e2x = exp(-x);\n  return (e2x + 1.0 / e2x) / 2.0;\n");return this.compileAndRun(e,[t])},e.prototype.tanh=function(t){var e=new Na(t.shape,"\n  float e2x = exp(-2.0 * abs(x));\n  return sign(x) * (1.0 - e2x) / (1.0 + e2x);\n");return this.compileAndRun(e,[t])},e.prototype.asinh=function(t){var e=new Na(t.shape,$a);return this.compileAndRun(e,[t])},e.prototype.acosh=function(t){var e=new Na(t.shape,Ya);return this.compileAndRun(e,[t])},e.prototype.atanh=function(t){var e=new Na(t.shape,Ja);return this.compileAndRun(e,[t])},e.prototype.erf=function(t){var e=new Na(t.shape,'\n  // Error function is calculated approximately with elementary function.\n  // See "Handbook of Mathematical Functions with Formulas,\n  // Graphs, and Mathematical Tables", Abramowitz and Stegun.\n  float p = 0.3275911;\n  float a1 = 0.254829592;\n  float a2 = -0.284496736;\n  float a3 = 1.421413741;\n  float a4 = -1.453152027;\n  float a5 = 1.061405429;\n\n  float sign = sign(x);\n  x = abs(x);\n  float t = 1.0 / (1.0 + p * x);\n  return sign * (1.0 - (((((a5*t + a4)*t) + a3)*t + a2)*t + a1)*t*exp(-x*x));\n');return this.compileAndRun(e,[t])},e.prototype.step=function(t,e){var n=new Na(t.shape,function(t){return void 0===t&&(t=0),Fa+"\n    return x > 0.0 ? 1.0 : float("+t+");\n  "}(e));return this.compileAndRun(n,[t])},e.prototype.conv2dByMatMul=function(t,e,n,r,o,i){var a=t.shape,s=this.texData.get(t.dataId),u=n.inChannels,c=a[0]*a[1]*a[2],l=n.outChannels,h="channelsLast"===n.dataFormat,p=(1===c||1===l)&&u>1e3,d=a[2]%2!=0&&!!s.isPacked;if(p||!f().getBool("WEBGL_LAZILY_UNPACK")||!f().getBool("WEBGL_PACK_BINARY_OPERATIONS")||!d){var v=h?a[0]*a[1]*a[2]:a[0]*a[2]*a[3],m=this.reshape(t,[1,v,n.inChannels]),g=this.reshape(e,[1,n.inChannels,n.outChannels]);return this.reshape(this.fusedBatchMatMul({a:m,b:g,transposeA:!1,transposeB:!1,bias:r,activation:o,preluActivationWeights:i}),n.outShape)}var y=h?a[0]*a[1]*(a[2]+1):a[0]*a[2]*(a[3]+1),x={dataId:t.dataId,shape:[1,y,n.inChannels],dtype:t.dtype},b=s.shape;s.shape=s.shape.slice(),s.shape[s.shape.length-2]++,I(ke(s.shape,x.shape),(function(){return"packed reshape "+s.shape+" to "+x.shape+" isn't free"}));var w=this.reshape(e,[1,n.inChannels,n.outChannels]),C=this.fusedBatchMatMul({a:x,b:w,transposeA:!1,transposeB:!1,bias:r,activation:o,preluActivationWeights:i}),E=this.texData.get(C.dataId);return I(E.isPacked,(function(){return"batchMatMul result is expected to be packed"})),s.shape=b,E.shape=n.outShape,Ot.makeTensorFromDataId(C.dataId,n.outShape,C.dtype)},e.prototype.conv2dWithIm2Row=function(t,e,n,r,o,i){var a=n.filterWidth,s=n.filterHeight,u=n.inChannels,c=n.outWidth,l=n.outHeight,h="channelsLast"===n.dataFormat,f=a*s*u,p=l*c,d=[f,p],v=t.squeeze([0]),m=e.reshape([1,f,-1]),g=new Xi(d,v.shape,n),y=this.compileAndRun(g,[v]).reshape([1,d[0],d[1]]),x=null!=r,b=null!=i,w=o?is(o,!0):null,C=new ta(y.shape,[1,p,n.outChannels],!0,!1,x,w,b),E=[y,m];r&&E.push(r),b&&E.push(i);var _=this.compileAndRun(C,E);return h?_.reshape([1,l,c,n.outChannels]):_.reshape([1,n.outChannels,l,c])},e.prototype.fusedConv2d=function(t){var e=t.input,n=t.filter,r=t.convInfo,o=t.bias,i=t.activation,a=t.preluActivationWeights;if(1===r.filterHeight&&1===r.filterWidth&&1===r.dilationHeight&&1===r.dilationWidth&&1===r.strideHeight&&1===r.strideWidth&&("SAME"===r.padInfo.type||"VALID"===r.padInfo.type))return this.conv2dByMatMul(e,n,r,o,i,a);if(f().getBool("WEBGL_CONV_IM2COL")&&1===e.shape[0])return this.conv2dWithIm2Row(e,n,r,o,i,a);var s=null!=o,u=null!=a,c=i?is(i,!1):null,l=new ci(r,s,c,u),h=[e,n];return o&&h.push(o),a&&h.push(a),this.compileAndRun(l,h)},e.prototype.conv2d=function(t,e,n){if(1===n.filterHeight&&1===n.filterWidth&&1===n.dilationHeight&&1===n.dilationWidth&&1===n.strideHeight&&1===n.strideWidth&&("SAME"===n.padInfo.type||"VALID"===n.padInfo.type))return this.conv2dByMatMul(t,e,n);if(f().getBool("WEBGL_CONV_IM2COL")&&1===t.shape[0])return this.conv2dWithIm2Row(t,e,n);var r=new ci(n);return this.compileAndRun(r,[t,e])},e.prototype.conv2dDerInput=function(t,e,n){var r=new oi(n);return this.compileAndRun(r,[t,e])},e.prototype.conv2dDerFilter=function(t,e,n){var r=new ri(n);return this.compileAndRun(r,[t,e])},e.prototype.fusedDepthwiseConv2D=function(t){var e,n=t.input,r=t.filter,o=t.convInfo,i=t.bias,a=t.activation,s=t.preluActivationWeights,u=f().getBool("WEBGL_PACK_DEPTHWISECONV")&&o.strideWidth<=2&&o.outChannels/o.inChannels==1,c=a?is(a,u):null,l=[n,r],h=null!=i,p=null!=s;return h&&l.push(i),p&&l.push(s),u?(e=new fi(o,h,c,p),this.compileAndRun(e,l)):(e=new hi(o,h,c,p),this.compileAndRun(e,l))},e.prototype.depthwiseConv2D=function(t,e,n){var r;return f().getBool("WEBGL_PACK_DEPTHWISECONV")&&n.strideWidth<=2&&n.outChannels/n.inChannels==1?(r=new fi(n),this.compileAndRun(r,[t,e])):(r=new hi(n),this.compileAndRun(r,[t,e]))},e.prototype.depthwiseConv2DDerInput=function(t,e,n){var r=new ui(n);return this.compileAndRun(r,[t,e])},e.prototype.depthwiseConv2DDerFilter=function(t,e,n){var r=new si(n);return this.compileAndRun(r,[t,e])},e.prototype.conv3d=function(t,e,n){var r=new li(n);return this.compileAndRun(r,[t,e])},e.prototype.conv3dDerInput=function(t,e,n){var r=new ai(n);return this.compileAndRun(r,[t,e])},e.prototype.conv3dDerFilter=function(t,e,n){var r=new ii(n);return this.compileAndRun(r,[t,e])},e.prototype.maxPool=function(t,e){var n=new aa(e,"max",!1);return this.compileAndRun(n,[t])},e.prototype.avgPool=function(t,e){var n=new aa(e,"avg",!1);return this.compileAndRun(n,[t],"float32")},e.prototype.maxPoolBackprop=function(t,e,n,r){var o=new aa(r,"max",!0),i=this.compileAndRun(o,[e]),a=new Qi(r),s=this.compileAndRun(a,[t,i],e.dtype);return i.dispose(),s},e.prototype.avgPoolBackprop=function(t,e,n){var r=new Wo(n);return this.compileAndRun(r,[t],e.dtype)},e.prototype.cast=function(t,e){return Jr(t,e,this)},e.prototype.unstack=function(t,e){for(var n=t.shape[e],r=new Array(t.rank-1),o=0,i=0;i<t.rank;i++)i!==e&&(r[o++]=t.shape[i]);var a=new Array(t.rank).fill(0),s=t.shape.slice();s[e]=1;var u=new Array(n);for(i=0;i<u.length;i++)a[e]=i,u[i]=this.slice(t,a,s).reshape(r);return u},e.prototype.avgPool3d=function(t,e){var n=new sa(e,"avg",!1);return this.compileAndRun(n,[t],"float32")},e.prototype.avgPool3dBackprop=function(t,e,n){var r=new zo(n);return this.compileAndRun(r,[t],e.dtype)},e.prototype.maxPool3d=function(t,e){var n=new sa(e,"max",!1);return this.compileAndRun(n,[t],"float32")},e.prototype.maxPool3dBackprop=function(t,e,n,r){var o=new sa(r,"max",!0),i=this.compileAndRun(o,[e]),a=new Zi(r),s=this.compileAndRun(a,[t,i],e.dtype);return i.dispose(),s},e.prototype.reshape=function(t,e){var n=this.texData.get(t.dataId);if(n.isPacked&&!ke(t.shape,e)&&(null===n.texture||!ke(n.shape,e))){var r=this.packedReshape(t,e);return Ot.makeTensorFromDataId(r.dataId,r.shape,r.dtype)}return Qr(t,e)},e.prototype.resizeBilinear=function(t,e,n,r){var o=f().getBool("WEBGL_PACK_IMAGE_OPERATIONS")?new fa(t.shape,e,n,r):new ha(t.shape,e,n,r);return this.compileAndRun(o,[t],"float32")},e.prototype.resizeBilinearBackprop=function(t,e,n){var r=new la(t,e,n);return this.compileAndRun(r,[t])},e.prototype.resizeNearestNeighbor=function(t,e,n,r){var o=new da(t.shape,e,n,r);return this.compileAndRun(o,[t])},e.prototype.resizeNearestNeighborBackprop=function(t,e,n){var r=new pa(t,e,n);return this.compileAndRun(r,[t])},e.prototype.multinomial=function(t,e,n,r){var o=e?t:Tr(t),i=o.shape[0],a=o.shape[1],s=new ea(i,a,n),u=s.getCustomSetupFunc(r);return this.compileAndRun(s,[o],"int32",u)},e.prototype.oneHot=function(t,e,n,r){var o=new na(t.size,e,n,r);return this.compileAndRun(o,[t])},e.prototype.diag=function(t){var e=new xi(t.size);return this.compileAndRun(e,[t])},e.prototype.nonMaxSuppression=function(t,e,n,r,o){return Ge("tf.nonMaxSuppression() in webgl locks the UI thread. Call tf.nonMaxSuppressionAsync() instead"),ao(t.dataSync(),e.dataSync(),n,r,o)},e.prototype.cropAndResize=function(t,e,n,r,o,i){var a=new pi(t.shape,e.shape,r,o,i);return this.compileAndRun(a,[t,e,n],"float32")},e.prototype.depthToSpace=function(t,e,n){I(e>1,(function(){return"blockSize should be > 1 for depthToSpace, but was: "+e}));var r=t.shape[0],o="NHWC"===n?t.shape[1]:t.shape[2],i="NHWC"===n?t.shape[2]:t.shape[3],a="NHWC"===n?t.shape[3]:t.shape[1],s=o*e,u=i*e,c=a/(e*e),l=new yi("NHWC"===n?[r,s,u,c]:[r,c,s,u],e,n);return this.compileAndRun(l,[t])},e.prototype.split=function(t,e,n){return fo(t,e,n)},e.prototype.scatterND=function(t,e,n){var r=Cr(0,t,n),o=r.sliceRank,i=r.numUpdates,a=r.sliceSize,s=r.strides,u=r.outputSize,c=[u/a,a],l=t.reshape([i,o]),h=e.reshape([i,a]);if(0===u)return Qr(cn([]),n);var f=hn(0),p=new ga(i,o,l.rank,h.rank,s,c);return this.compileAndRun(p,[h,l,f]).reshape(n)},e.prototype.sparseToDense=function(t,e,n,r){var o=Cr(0,t,n),i=o.sliceRank,a=o.numUpdates,s=o.strides,u=o.outputSize,c=new ga(a,i,t.rank,e.rank,s,[u,1],!1);return this.compileAndRun(c,[e,t,r]).reshape(n)},e.prototype.fft=function(t){return this.fftImpl(t,!1)},e.prototype.ifft=function(t){return this.fftImpl(t,!0)},e.prototype.fftImpl=function(t,e){var n=this.texData.get(t.dataId),r=new _i("return real * expR - imag * expI;",t.shape,e),o=new _i("return real * expI + imag * expR;",t.shape,e),i=[this.makeComplexComponentTensorInfo(t,n.complexTensors.real),this.makeComplexComponentTensorInfo(t,n.complexTensors.imag)],a=this.compileAndRun(r,i),s=this.compileAndRun(o,i),u=this.complex(a,s).as2D(t.shape[0],t.shape[1]);return a.dispose(),s.dispose(),u},e.prototype.gatherND=function(t,e){var n=e.shape,r=n[n.length-1],o=yr(t,e),i=o[0],a=o[1],s=o[2],u=o[3],c=e.reshape([a,r]),l=t.reshape([t.size/s,s]),h=new Si(r,u,[a,s]);return this.compileAndRun(h,[l,c]).reshape(i)},e.prototype.fill=function(t,e,n){if("string"===(n=n||Y(e))){var r=z(n,D(t));return r.fill(e),Ot.makeTensor(r,t,n,this)}var o=new Ii(t,e),i=o.getCustomSetupFunc(e);return this.compileAndRun(o,[],n,i)},e.prototype.onesLike=function(t){if("string"===t.dtype)throw new Error("onesLike is not supported under string dtype");return this.fill(t.shape,1,t.dtype)},e.prototype.zerosLike=function(t){return this.fill(t.shape,"string"===t.dtype?"":0,t.dtype)},e.prototype.linspace=function(t,e,n){return Zr(t,e,n)},e.prototype.makeTensorInfo=function(t,e){var n=this.write(null,t,e);return this.texData.get(n).usage=null,{dataId:n,shape:t,dtype:e}},e.prototype.makeOutput=function(t,e){var n=this.makeTensorInfo(t,e).dataId;return Ot.makeTensorFromDataId(n,t,e,this)},e.prototype.unpackTensor=function(t){var e=new rs(t.shape);return this.runWebGLProgram(e,[t],t.dtype)},e.prototype.packTensor=function(t){var e=new ra(t.shape);return this.runWebGLProgram(e,[t],t.dtype,null,!0)},e.prototype.packedReshape=function(t,e){var n=[Ee(t.shape)].concat(_e(t.shape)),r={dtype:t.dtype,shape:n,dataId:t.dataId},o=[Ee(e)].concat(_e(e)),i=new ca(o,n),a=this.runWebGLProgram(i,[r],t.dtype,null,!0);return{dataId:a.dataId,shape:e,dtype:a.dtype}},e.prototype.decode=function(t){var e,n=this.texData.get(t),r=n.isPacked,o=n.shape,i=n.dtype,a=Ie(o);return e=r?new gi(a):new mi(a),{dtype:i,shape:o,dataId:this.runWebGLProgram(e,[{shape:a,dtype:i,dataId:t}],i,null,!0).dataId}},e.prototype.runWebGLProgram=function(t,e,n,r,o){var i=this;void 0===o&&(o=!1);var a=this.makeTensorInfo(t.outputShape,n),s=this.texData.get(a.dataId);if(t.packedOutput&&(s.isPacked=!0),t.outPackingScheme===Lt.DENSE){var u=qt(t.outputShape);s.texShape=u.map((function(t){return 2*t}))}if(null!=t.outTexUsage&&(s.usage=t.outTexUsage),0===D(a.shape))return s.values=W(a.dtype,0),a;var c=[],l=e.map((function(e){if("complex64"===e.dtype)throw new Error("GPGPUProgram does not support complex64 input. For complex64 dtypes, please separate the program into real and imaginary parts.");var n=i.texData.get(e.dataId);if(null==n.texture){if(!t.packedInputs&&D(e.shape)<=f().getNumber("WEBGL_SIZE_UPLOAD_UNIFORM"))return{shape:e.shape,texData:null,isUniform:!0,uniformValues:n.values};t.packedInputs&&(n.isPacked=!0,n.shape=e.shape)}else if(!!n.isPacked!=!!t.packedInputs)e=n.isPacked?i.unpackTensor(e):i.packTensor(e),c.push(e),n=i.texData.get(e.dataId);else if(n.isPacked&&!ke(n.shape,e.shape)){var r=e,o=e.shape;e.shape=n.shape,e=i.packedReshape(e,o),c.push(e),n=i.texData.get(e.dataId),r.shape=o}return i.uploadToGPU(e.dataId),{shape:e.shape,texData:n,isUniform:!1}}));this.uploadToGPU(a.dataId);var h,p={shape:a.shape,texData:s,isUniform:!1},d=function(t,e,n){var r="";e.concat(n).forEach((function(t){var e=null!=t.texData&&null!=t.texData.slice&&t.texData.slice.flatOffset>0,n=t.isUniform?"uniform":t.texData.texShape;r+=t.shape+"_"+n+"_"+e}));var o=t.userCode;return t.constructor.name+"_"+r+"_"+o}(t,l,p),v=this.getAndSaveBinary(d,(function(){return function(t,e,n,r){var o=e.userCode,i=n.map((function(t,n){var r={logicalShape:t.shape,texShape:t.isUniform?null:t.texData.texShape,isUniform:t.isUniform,isPacked:!t.isUniform&&t.texData.isPacked,flatOffset:null};return null!=t.texData&&null!=t.texData.slice&&t.texData.slice.flatOffset>0&&(r.flatOffset=t.texData.slice.flatOffset),{name:e.variableNames[n],shapeInfo:r}})),a=i.map((function(t){return t.shapeInfo})),s={logicalShape:r.shape,texShape:r.texData.texShape,isUniform:!1,isPacked:r.texData.isPacked,flatOffset:null},u=Ro(i,s,o,e.packedInputs),c=t.createProgram(u),l=null,h=t.getUniformLocation(c,"NAN",!1);1===f().getNumber("WEBGL_VERSION")&&(l=t.getUniformLocation(c,"INFINITY",!1));for(var p={},d=0;d<e.variableNames.length;d++){var v=e.variableNames[d];p[v]=t.getUniformLocation(c,v,!1),p["offset"+v]=t.getUniformLocation(c,"offset"+v,!1)}return{program:e,source:u,webGLProgram:c,uniformLocations:p,inShapeInfos:a,outShapeInfo:s,infLoc:l,nanLoc:h}}(i.gpgpu,t,l,p)})),m=null!=this.activeTimers;if(m&&(h=this.startTimer()),function(t,e,n,r,o){Ki(e.inShapeInfos,n),Ki([e.outShapeInfo],[r]);var i=r.texData.texture,a=r.texData.texShape;r.texData.isPacked?t.setOutputPackedMatrixTexture(i,a[0],a[1]):t.setOutputMatrixTexture(i,a[0],a[1]),t.setProgram(e.webGLProgram),1===f().getNumber("WEBGL_VERSION")&&null!==e.infLoc&&t.gl.uniform1f(e.infLoc,1/0),null!==e.nanLoc&&t.gl.uniform1f(e.nanLoc,NaN),n.forEach((function(n,r){var o=e.program.variableNames[r],i=e.uniformLocations[o],a=e.uniformLocations["offset"+o];if(null!=i)if(n.isUniform)if(D(n.shape)<2)t.gl.uniform1f(i,n.uniformValues[0]);else{var s=n.uniformValues;s instanceof Float32Array||(s=new Float32Array(s)),t.gl.uniform1fv(i,s)}else null!=n.texData.slice&&null!=a&&t.gl.uniform1i(a,n.texData.slice.flatOffset),t.setInputMatrixTexture(n.texData.texture,i,r)})),null!=o&&o(t,e.webGLProgram),t.executeProgram()}(this.gpgpu,v,l,p,r),c.forEach((function(t){return i.disposeData(t.dataId)})),m&&(h=this.endTimer(h),this.activeTimers.push({name:t.constructor.name,query:this.getQueryTime(h)})),!f().getBool("WEBGL_LAZILY_UNPACK")&&s.isPacked&&!1===o){var g=this.unpackTensor(a);return this.disposeData(a.dataId),g}return a},e.prototype.compileAndRun=function(t,e,n,r,o){void 0===o&&(o=!1),n=n||e[0].dtype;var i=this.runWebGLProgram(t,e,n,r,o);return Ot.makeTensorFromDataId(i.dataId,i.shape,i.dtype)},e.prototype.getAndSaveBinary=function(t,e){return t in this.binaryCache||(this.binaryCache[t]=e()),this.binaryCache[t]},e.prototype.getTextureManager=function(){return this.textureManager},e.prototype.dispose=function(){var t=this;this.disposed||(f().getBool("IS_TEST")||Object.keys(this.binaryCache).forEach((function(e){t.gpgpu.deleteProgram(t.binaryCache[e].webGLProgram),delete t.binaryCache[e]})),this.textureManager.dispose(),null!=this.canvas&&"undefined"!=typeof HTMLCanvasElement&&this.canvas instanceof HTMLCanvasElement?this.canvas.remove():this.canvas=null,this.gpgpuCreatedLocally&&(this.gpgpu.program=null,this.gpgpu.dispose()),this.disposed=!0)},e.prototype.floatPrecision=function(){var t=this;return null==this.floatPrecisionValue&&(this.floatPrecisionValue=Ue((function(){if(!f().get("WEBGL_RENDER_FLOAT32_ENABLED")){var e=f().getBool("DEBUG");f().set("DEBUG",!1);var n=t.abs(hn(1e-8)).dataSync()[0];if(f().set("DEBUG",e),n>0)return 32}return 16}))),this.floatPrecisionValue},e.prototype.epsilon=function(){return 32===this.floatPrecision()?1e-7:1e-4},e.prototype.uploadToGPU=function(t){var e,n=this.texData.get(t),r=n.shape,o=n.dtype,i=n.values,a=n.texture,s=n.usage,u=n.isPacked;if(null==a){var c,l=null!=this.activeTimers;l&&(c=ot());var h=n.texShape;if(null==h&&(h=Re(r,u),n.texShape=h),null!=i){var f=Ie(r),p=void 0,d=h[1],v=h[0],m=i instanceof Uint8Array;u?(d=(e=Kt(h[0],h[1]))[0],v=e[1],p=new Ei(f,[v,d],m)):p=new Ci(f,[v,d],m);var g=this.makeTensorInfo([v,d],o);this.texData.get(g.dataId).usage=m?Wt.PIXELS:Wt.UPLOAD,this.gpgpu.uploadDenseMatrixToTexture(this.getTexture(g.dataId),d,v,i);var y=this.runWebGLProgram(p,[g],o,null,!0),x=this.texData.get(y.dataId);n.texture=x.texture,n.texShape=x.texShape,n.isPacked=x.isPacked,n.usage=x.usage,this.disposeData(g.dataId),this.texData.delete(y.dataId),n.values=null,l&&(this.uploadWaitMs+=ot()-c)}else{var b=this.acquireTexture(h,s,o,u);n.texture=b}}},e.prototype.convertAndCacheOnCPU=function(t,e){var n=this.texData.get(t),r=n.dtype;return this.releaseGPUData(t),null!=e&&(n.values=function(t,e){if("float32"===e||"complex64"===e)return t;if("int32"===e||"bool"===e){for(var n="int32"===e?new Int32Array(t.length):new Uint8Array(t.length),r=0;r<n.length;++r)n[r]=Math.round(t[r]);return n}throw new Error("Unknown dtype "+e)}(e,r)),n.values},e.prototype.acquireTexture=function(t,e,n,r){if(this.numBytesInGPU+=this.computeBytes(t,n),!this.warnedAboutMemory&&this.numBytesInGPU>1024*this.numMBBeforeWarning*1024){var o=(this.numBytesInGPU/1024/1024).toFixed(2);this.warnedAboutMemory=!0,console.warn("High memory usage in GPU: "+o+" MB, most likely due to a memory leak")}return this.textureManager.acquireTexture(t,e,r)},e.prototype.computeBytes=function(t,e){return t[0]*t[1]*j(e)},e}(Mr);Pt()&&Ot.registerBackend("webgl",(function(){return new as}),2);var ss=on({square_:function(t){var e=qe(t,"x","square"),n=[e];return Ot.runKernelFunc((function(t,n){return n([e]),t.square(e)}),{x:e},null,"Square",{},n,[])}}),us="SquaredDifference",cs=on({squaredDifference_:function(t,e){var n,r=qe(t,"a","squaredDifference"),o=qe(e,"b","squaredDifference");n=Dt(r,o),r=n[0],o=n[1],Lr(r.shape,o.shape);var i={a:r,b:o},a=[r,o];return Ot.runKernelFunc((function(t,e){var n=t.squaredDifference(r,o);return e([r,o]),n}),i,(function(t,e){var n=e[0],r=e[1],o=hn(2);return{a:function(){return t.mul(n.sub(r).mul(o))},b:function(){return t.mul(r.sub(n).mul(o))}}}),us,{},a,[])}}),ls=on({abs_:function(t){var e=qe(t,"x","abs");return"complex64"===e.dtype?Ot.runKernelFunc((function(t){return t.complexAbs(e)}),{$x:e}):Ot.runKernelFunc((function(t,n){var r=t.abs(e);return n([e]),r}),{x:e},(function(t,e){var n=e[0];return{x:function(){return t.mul(n.toFloat().step(-1))}}}),"Abs")}}),hs=on({acos_:function(t){var e=qe(t,"x","acos");return Ot.runKernelFunc((function(t,n){var r=t.acos(e);return n([e]),r}),{$x:e},(function(t,e){var n=e[0];return{$x:function(){return t.divStrict(hn(1).sub(n.toFloat().square()).sqrt()).neg()}}}))}}),fs=on({acosh_:function(t){var e=qe(t,"x","acosh");return Ot.runKernelFunc((function(t,n){var r=t.acosh(e);return n([e]),r}),{$x:e},(function(t,e){var 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t.div(hn(1).sub(n.toFloat().square()))}}}))}}),gs=on({ceil_:function(t){var e=qe(t,"x","ceil");return Ot.runKernelFunc((function(t){return t.ceil(e)}),{$x:e},(function(t){return{$x:function(){return wn(t)}}}))}}),ys=on({clipByValue_:function(t,e,n){var r=qe(t,"x","clipByValue");I(e<=n,(function(){return"Error in clip: min ("+e+") must be less than or equal to max ("+n+")."}));var o=[r],i={min:e,max:n};return Ot.runKernelFunc((function(t,o){var i=t.clip(r,e,n);return o([r]),i}),{x:r},(function(t,r){var o=r[0];return{x:function(){return t.where(o.greaterEqual(e).logicalAnd(o.lessEqual(n)),wn(t))}}}),"ClipByValue",i,o)}}),xs=on({cos_:function(t){var e=qe(t,"x","cos"),n=[e];return Ot.runKernelFunc((function(t,n){var r=t.cos(e);return n([e]),r}),{x:e},(function(t,e){var n=e[0];return{x:function(){return n.toFloat().sin().neg().mul(t)}}}),"Cos",{},n)}}),bs=on({cosh_:function(t){var e=qe(t,"x","cosh");return Ot.runKernelFunc((function(t,n){var r=t.cosh(e);return n([e]),r}),{$x:e},(function(t,e){var n=e[0];return{$x:function(){return n.toFloat().sinh().mulStrict(t)}}}))}}),ws=on({erf_:function(t){var e=qe(t,"x","erf");return I("int32"===e.dtype||"float32"===e.dtype,(function(){return"Input dtype must be `int32` or `float32`."})),"int32"===e.dtype&&(e=e.toFloat()),Ot.runKernelFunc((function(t,n){var r=t.erf(e);return n([e]),r}),{$x:e},(function(t,e){var n=e[0];return{$x:function(){return t.mul(n.square().neg().exp().mul(2/Math.sqrt(Math.PI)))}}}))}}),Cs=on({exp_:function(t){var e=qe(t,"x","exp");return Ot.runKernelFunc((function(t,n){var r=t.exp(e);return n([r]),r}),{x:e},(function(t,e){return{x:function(){return t.mulStrict(e[0])}}}),"Exp",{},[],[!0])}}),Es=on({expm1_:function(t){var e=qe(t,"x","expm1");return Ot.runKernelFunc((function(t,n){var r=t.expm1(e);return n([e]),r}),{$x:e},(function(t,e){var n=e[0];return{$x:function(){return t.mul(n.exp())}}}))}}),_s=on({floor_:function(t){var e=qe(t,"x","floor");return 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0===o&&(o=ll.SUM_BY_NONZERO_WEIGHTS);var i=qe(t,"labels","logLoss"),a=qe(e,"predictions","logLoss"),s=null;null!=n&&(s=qe(n,"weights","logLoss")),R(i.shape,a.shape,"Error in logLoss: ");var u=hn(1),c=hn(r),l=i.mul(a.add(c).log()).neg().sub(u.sub(i).mul(u.sub(a).add(c).log()));return gl(l,s,o)}}),Cl=on({meanSquaredError_:function(t,e,n,r){void 0===r&&(r=ll.SUM_BY_NONZERO_WEIGHTS);var o=qe(t,"labels","meanSquaredError"),i=qe(e,"predictions","meanSquaredError"),a=null;null!=n&&(a=qe(n,"weights","meanSquaredError")),R(o.shape,i.shape,"Error in meanSquaredError: ");var s=o.squaredDifference(i);return gl(s,a,r)}}),El=on({sigmoidCrossEntropy_:function(t,e,n,r,o){void 0===r&&(r=0),void 0===o&&(o=ll.SUM_BY_NONZERO_WEIGHTS);var i=qe(t,"multiClassLabels","sigmoidCrossEntropy"),a=qe(e,"logits","sigmoidCrossEntropy"),s=null;if(null!=n&&(s=qe(n,"weights","sigmoidCrossEntropy")),R(i.shape,a.shape,"Error in sigmoidCrossEntropy: "),r>0){var u=hn(r),c=hn(1),l=hn(.5);i=i.mul(c.sub(u)).add(l.mul(u))}var h=function(t,e){var n=qe(t,"labels","sigmoidCrossEntropyWithLogits"),r=qe(e,"logits","sigmoidCrossEntropyWithLogits");R(n.shape,r.shape,"Error in sigmoidCrossEntropyWithLogits: ");var o=r.relu(),i=r.mul(n),a=r.abs().neg().exp().log1p();return o.sub(i).add(a)}(i,a);return gl(h,s,o)}}),_l=on({softmaxCrossEntropy_:function(t,e,n,r,o){void 0===r&&(r=0),void 0===o&&(o=ll.SUM_BY_NONZERO_WEIGHTS);var i=qe(t,"onehotLabels","softmaxCrossEntropy"),a=qe(e,"logits","softmaxCrossEntropy"),s=null;if(null!=n&&(s=qe(n,"weights","softmaxCrossEntropy")),R(i.shape,a.shape,"Error in softmaxCrossEntropy: "),r>0){var u=hn(r),c=hn(1),l=hn(i.shape[1]);i=i.mul(c.sub(u)).add(u.div(l))}var h=function(t,e,n){if(void 0===n&&(n=-1),-1===n&&(n=e.rank-1),n!==e.rank-1)throw Error("Softmax cross entropy along a non-last dimension is not yet supported. Labels / logits was rank "+e.rank+" and dim was "+n);return Ar((function(t,e,r){var o=e.logSumExp([n],!0),i=e.toFloat().sub(o);return r([t,i]),{value:i.mul(t).neg().sum([n]),gradFunc:function(t,e){var r=e[0],o=e[1],i=Je(t.shape,[n]);return[t.reshape(i).mul(r.toFloat().sub(o.exp())),t.reshape(i).mul(o.exp().sub(r.toFloat()))]}}}))(t,e)}(i,a);return gl(h,s,o)}}),Il=Object.freeze({get Reduction(){return ll},absoluteDifference:ml,computeWeightedLoss:gl,cosineDistance:yl,hingeLoss:xl,huberLoss:bl,logLoss:wl,meanSquaredError:Cl,sigmoidCrossEntropy:El,softmaxCrossEntropy:_l});function Rl(t,e){return void 0===e&&(e=!1),Ot.tidy((function(){if(2!==t.shape.length)throw new Error("qr2d() requires a 2D Tensor, but got a "+t.shape.length+"D Tensor.");for(var n=t.shape[0],r=t.shape[1],o=Xn(n),i=t.clone(),a=pn([[1]],[1,1]),s=a.clone(),u=n>=r?r:n,c=function(t){var e,u=i,c=s,l=o;e=Ot.tidy((function(){var e=i.slice([t,t],[n-t,1]),u=e.norm(),c=i.slice([t,t],[1,1]),l=pn([[-1]]).where(c.greater(0),pn([[1]])),h=c.sub(l.mul(u)),f=e.div(h);s=1===f.shape[0]?a.clone():a.concat(f.slice([1,0],[f.shape[0]-1,f.shape[1]]),0);var p=l.matMul(h).div(u).neg(),d=i.slice([t,0],[n-t,r]),v=p.mul(s);if(0===t)i=d.sub(v.matMul(s.transpose().matMul(d)));else{var m=d.sub(v.matMul(s.transpose().matMul(d)));i=i.slice([0,0],[t,r]).concat(m,0)}var g=o.slice([0,t],[n,o.shape[1]-t]);if(0===t)o=g.sub(g.matMul(s).matMul(v.transpose()));else{var y=g.sub(g.matMul(s).matMul(v.transpose()));o=o.slice([0,0],[n,t]).concat(y,1)}return[s,i,o]})),s=e[0],i=e[1],o=e[2],Ve([u,c,l])},l=0;l<u;++l)c(l);return!e&&n>r&&(o=o.slice([0,0],[n,r]),i=i.slice([0,0],[r,r])),[o,i]}))}var Sl=on({bandPart_:function(t,e,n){if(e%1!=0)throw new Error("bandPart(): numLower must be an integer, got "+e+".");if(n%1!=0)throw new Error("bandPart(): numUpper must be an integer, got "+n+".");var r=qe(t,"a","bandPart");if(r.rank<2)throw new Error("bandPart(): Rank must be at least 2, got "+r.rank+".");var o=r.shape,i=r.shape.slice(-2),a=i[0],s=i[1];if(!(e<=a))throw new Error("bandPart(): numLower ("+e+") must not be greater than the number of rows ("+a+").");if(!(n<=s))throw new Error("bandPart(): numUpper ("+n+") must not be greater than the number of columns ("+s+").");e<0&&(e=a),n<0&&(n=s);var u=xn(0,a,1,"int32").reshape([-1,1]),c=xn(0,s,1,"int32"),l=Du(u,c),h=ou(l.lessEqual(hn(+e,"int32")),l.greaterEqual(hn(-n,"int32"))),f=gn([a,s],r.dtype);return cr(fr(r.reshape([-1,a,s])).map((function(t){return uu(h,t,f)}))).reshape(o)}}),kl=on({gramSchmidt_:function(t){var e;if(Array.isArray(t)){e=!1,I(null!=t&&t.length>0,(function(){return"Gram-Schmidt process: input must not be null, undefined, or empty"}));for(var n=t[0].shape[0],r=function(e){I(t[e].shape[0]===n,(function(){return"Gram-Schmidt: Non-unique lengths found in the input vectors: ("+t[e].shape[0]+" vs. "+n+")"}))},o=1;o<t.length;++o)r(o)}else e=!0,t=Sn(t,t.shape[0],0).map((function(t){return ur(t,[0])}));I(t.length<=t[0].shape[0],(function(){return"Gram-Schmidt: Number of vectors ("+t.length+") exceeds number of dimensions ("+t[0].shape[0]+")."}));var i=[],a=t,s=function(t){i.push(Ot.tidy((function(){var e=a[t];if(t>0)for(var n=0;n<t;++n){var r=Bc(i[n].mulStrict(e)).mul(i[n]);e=e.sub(r)}return e.div(Kc(e,"euclidean"))})))};for(o=0;o<t.length;++o)s(o);return e?cr(i,0):i}}),Dl=on({qr_:function(t,e){if(void 0===e&&(e=!1),t.rank<2)throw new Error("qr() requires input tensor to have a rank >= 2, but got rank "+t.rank);if(2===t.rank)return Rl(t,e);var n=t.shape.slice(0,t.shape.length-2).reduce((function(t,e){return t*e})),r=fr(t.reshape([n,t.shape[t.shape.length-2],t.shape[t.shape.length-1]]),0),o=[],i=[];return r.forEach((function(t){var n=Rl(t,e),r=n[0],a=n[1];o.push(r),i.push(a)})),[cr(o,0).reshape(t.shape),cr(i,0).reshape(t.shape)]}}),Al=Object.freeze({bandPart:Sl,gramSchmidt:kl,qr:Dl});function Tl(t,e,n,r,o,i){null==r&&(r=.5),null==o&&(o=Number.NEGATIVE_INFINITY),null==i&&(i=0);var a=t.shape[0];return n=Math.min(n,a),I(0<=r&&r<=1,(function(){return"iouThreshold must be in [0, 1], but was '"+r+"'"})),I(2===t.rank,(function(){return"boxes must be a 2D tensor, but was of rank '"+t.rank+"'"})),I(4===t.shape[1],(function(){return"boxes must have 4 columns, but 2nd dimension was "+t.shape[1]})),I(1===e.rank,(function(){return"scores must be a 1D tensor"})),I(e.shape[0]===a,(function(){return"scores has incompatible shape with boxes. Expected "+a+", but was "+e.shape[0]})),I(0<=i&&i<=1,(function(){return"softNmsSigma must be in [0, 1], but was '"+i+"'"})),{maxOutputSize:n,iouThreshold:r,scoreThreshold:o,softNmsSigma:i}}var Nl=on({resizeBilinear_:function(t,e,n){void 0===n&&(n=!1);var r=qe(t,"images","resizeBilinear");I(3===r.rank||4===r.rank,(function(){return"Error in resizeBilinear: x must be rank 3 or 4, but got rank "+r.rank+"."})),I(2===e.length,(function(){return"Error in resizeBilinear: new shape must 2D, but got shape "+e+"."}));var o=r,i=!1;3===r.rank&&(i=!0,o=r.as4D(1,r.shape[0],r.shape[1],r.shape[2]));var a=e[0],s=e[1],u=Ot.runKernelFunc((function(t,e){return e([o]),t.resizeBilinear(o,a,s,n)}),{x:o},(function(t,e){return{x:function(){return Ot.runKernelFunc((function(r){return r.resizeBilinearBackprop(t,e[0],n)}),{})}}}),"ResizeBilinear",{alignCorners:n,newHeight:a,newWidth:s});return i?u.as3D(u.shape[1],u.shape[2],u.shape[3]):u}}),Fl=on({resizeNearestNeighbor_:function(t,e,n){void 0===n&&(n=!1);var r=qe(t,"images","resizeNearestNeighbor");I(3===r.rank||4===r.rank,(function(){return"Error in resizeNearestNeighbor: x must be rank 3 or 4, but got rank "+r.rank+"."})),I(2===e.length,(function(){return"Error in resizeNearestNeighbor: new shape must 2D, but got shape "+e+"."})),I("float32"===r.dtype||"int32"===r.dtype,(function(){return"`images` must have `int32` or `float32` as dtype"}));var o=r,i=!1;3===r.rank&&(i=!0,o=r.as4D(1,r.shape[0],r.shape[1],r.shape[2]));var a=e[0],s=e[1],u=Ot.runKernelFunc((function(t,e){return e([o]),t.resizeNearestNeighbor(o,a,s,n)}),{batchImages:o},(function(t,e){return{batchImages:function(){return Ot.runKernelFunc((function(r){return r.resizeNearestNeighborBackprop(t,e[0],n)}),{})}}}));return i?u.as3D(u.shape[1],u.shape[2],u.shape[3]):u}}),Ml=on({nonMaxSuppression_:function(t,e,n,r,o){void 0===r&&(r=.5),void 0===o&&(o=Number.NEGATIVE_INFINITY);var i=qe(t,"boxes","nonMaxSuppression"),a=qe(e,"scores","nonMaxSuppression"),s=Tl(i,a,n,r,o);n=s.maxOutputSize,r=s.iouThreshold,o=s.scoreThreshold;var u={maxOutputSize:n,iouThreshold:r,scoreThreshold:o};return Ot.runKernelFunc((function(t){return t.nonMaxSuppression(i,a,n,r,o)}),{boxes:i,scores:a},null,"NonMaxSuppressionV3",u)}}),Ol=on({nonMaxSuppressionWithScore_:function(t,e,n,r,o,i){void 0===r&&(r=.5),void 0===o&&(o=Number.NEGATIVE_INFINITY),void 0===i&&(i=0);var a=qe(t,"boxes","nonMaxSuppression"),s=qe(e,"scores","nonMaxSuppression"),u=Tl(a,s,n,r,o,i),c={maxOutputSize:n=u.maxOutputSize,iouThreshold:r=u.iouThreshold,scoreThreshold:o=u.scoreThreshold,softNmsSigma:i=u.softNmsSigma},l=Ot.runKernel("NonMaxSuppressionV5",{boxes:a,scores:s},c);return{selectedIndices:l[0],selectedScores:l[1]}}}),Pl=on({cropAndResize_:function(t,e,n,r,o,i){var a=qe(t,"image","cropAndResize"),s=qe(e,"boxes","cropAndResize","float32"),u=qe(n,"boxInd","cropAndResize","int32");o=o||"bilinear",i=i||0;var c=s.shape[0];return I(4===a.rank,(function(){return"Error in cropAndResize: image must be rank 4,but got rank "+a.rank+"."})),I(2===s.rank&&4===s.shape[1],(function(){return"Error in cropAndResize: boxes must be have size ["+c+",4] but had shape "+s.shape+"."})),I(1===u.rank&&u.shape[0]===c,(function(){return"Error in cropAndResize: boxInd must be have size ["+c+"] but had shape "+s.shape+"."})),I(2===r.length,(function(){return"Error in cropAndResize: cropSize must be of length 2, but got length "+r.length+"."})),I(r[0]>=1&&r[1]>=1,(function(){return"cropSize must be atleast [1,1], but was "+r})),I("bilinear"===o||"nearest"===o,(function(){return"method must be bilinear or nearest, but was "+o})),Ot.runKernelFunc((function(t,e){return t.cropAndResize(a,s,u,r,o,i)}),{images:a,boxes:s,boxInd:u},null,"CropAndResize",{method:o,extrapolationValue:i,cropSize:r})}}),Bl=Object.freeze({resizeBilinear:Nl,resizeNearestNeighbor:Fl,nonMaxSuppression:Ml,nonMaxSuppressionAsync:function(t,e,n,r,o){return void 0===r&&(r=.5),void 0===o&&(o=Number.NEGATIVE_INFINITY),u(this,void 0,void 0,(function(){var i,a,s,u,l,h,f;return c(this,(function(c){switch(c.label){case 0:return i=qe(t,"boxes","nonMaxSuppressionAsync"),a=qe(e,"scores","nonMaxSuppressionAsync"),s=Tl(i,a,n,r,o),n=s.maxOutputSize,r=s.iouThreshold,o=s.scoreThreshold,[4,Promise.all([i.data(),a.data()])];case 1:return u=c.sent(),l=u[0],h=u[1],f=ao(l,h,n,r,o),i!==t&&i.dispose(),a!==e&&a.dispose(),[2,f]}}))}))},nonMaxSuppressionWithScore:Ol,nonMaxSuppressionWithScoreAsync:function(t,e,n,r,o,i){return void 0===r&&(r=.5),void 0===o&&(o=Number.NEGATIVE_INFINITY),void 0===i&&(i=0),u(this,void 0,void 0,(function(){var a,s,u,l,h,f,p;return c(this,(function(c){switch(c.label){case 0:return a=qe(t,"boxes","nonMaxSuppressionAsync"),s=qe(e,"scores","nonMaxSuppressionAsync"),u=Tl(a,s,n,r,o,i),n=u.maxOutputSize,r=u.iouThreshold,o=u.scoreThreshold,i=u.softNmsSigma,[4,Promise.all([a.data(),s.data()])];case 1:return l=c.sent(),h=l[0],f=l[1],p=so(h,f,n,r,o,i),a!==t&&a.dispose(),s!==e&&s.dispose(),[2,p]}}))}))},cropAndResize:Pl}),Ll=function(t,e){return!(t>0)||"linear"===e},Wl=function(t,e,n){if(null==n||"linear"===n)return t;if("relu"===n)return t.mul(e.step());throw new Error("Gradient for activation "+n+" has not been implemented yet.")},zl=function(t,e){var n=e,r=Br(t.shape,e.shape);return r.length>0&&(n=n.sum(r)),n.reshape(t.shape)},Ul=function(t,e,n){if("linear"===e)return t;if("relu"===e)return Vc(t);if("elu"===e)return Wc(t);if("relu6"===e)return Gc(t);if("prelu"===e)return Uc(t,n);throw new Error("Unknown fused activation "+e+".")},Vl=on({fusedMatMul_:function(t){var e,n=t.a,r=t.b,o=t.transposeA,i=void 0!==o&&o,a=t.transposeB,s=void 0!==a&&a,u=t.bias,c=t.activation,l=void 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o=n?t.shape[1]:t.shape[2],i=n?t.shape[2]:t.shape[1],a=r?e.shape[1]:e.shape[2],s=t.shape[0],u=this.readSync(t.dataId),c=this.readSync(e.dataId),l=n?[t.strides[0],1,t.strides[1]]:[t.strides[0],t.strides[1],1],h=l[0],f=l[1],p=l[2],d=r?[1,e.strides[1],e.strides[0]]:[e.strides[1],1,e.strides[0]],v=d[0],m=d[1],g=d[2],y=i*a,x=zn([s,i,a],t.dtype),b=x.values,w=this.blockSize,C=0;C<s;C++)for(var E=0;E<i;E+=w)for(var _=0;_<a;_+=w)for(var I=0;I<o;I+=w)for(var R=Math.min(E+w,i),S=Math.min(_+w,a),k=Math.min(I+w,o),D=E;D<R;D++)for(var A=_;A<S;A++){for(var T=0,N=I;N<k;N++)T+=u[C*h+D*f+N*p]*c[N*v+A*m+C*g];b[C*y+(D*a+A)]+=T}return x.toTensor()},e.prototype.fusedBatchMatMul=function(t){var e=t.a,n=t.b,r=t.transposeA,o=t.transposeB,i=t.bias,a=t.activation,s=t.preluActivationWeights,u=this.batchMatMul(e,n,r,o);return i&&(u=this.add(u,i)),a&&(u=Xl(this,u,a,s)),u},e.prototype.multiply=function(t,e){return"complex64"===t.dtype||"complex64"===e.dtype?this.broadcastedBinaryComplexOp(t.cast("complex64"),e.cast("complex64"),(function(t,e,n,r){return{real:t*n-e*r,imag:t*r+e*n}})):this.broadcastedBinaryOp(t,e,St(t.dtype,e.dtype),(function(t,e){return t*e}))},e.prototype.realDivide=function(t,e){return Kl([t,e],"realDivide"),this.broadcastedBinaryOp(t,e,"float32",(function(t,e){return t/e}))},e.prototype.floorDiv=function(t,e){return Kl([t,e],"floorDiv"),this.broadcastedBinaryOp(t,e,"int32",(function(t,e){return Math.floor(t/e)}))},e.prototype.sum=function(t,e){Kl(t,"sum"),Qe("sum",e,t.rank);for(var n=Ye(t.shape,e),r=n[0],o=n[1],i=gn(r,St(t.dtype,"int32")),a=D(o),s=this.readSync(i.dataId),u=this.readSync(t.dataId),c=0;c<s.length;++c){for(var l=c*a,h=0,f=0;f<a;++f)h+=u[l+f];s[c]=h}return i},e.prototype.prod=function(t,e){Kl(t,"sum");for(var n=Ye(t.shape,e),r=n[0],o=n[1],i=gn(r,St(t.dtype,"int32")),a=D(o),s=this.readSync(i.dataId),u=this.readSync(t.dataId),c=0;c<s.length;++c){for(var l=c*a,h=1,f=0;f<a;++f)h*=u[l+f];s[c]=h}return i},e.prototype.unsortedSegmentSum=function(t,e,n){Kl(t,"unsortedSegmentSum");for(var r=[],o=t.rank-e.rank,i=0;i<o;++i)e=e.expandDims(i+1);for(i=0;i<n;++i){var a=hn(i,"int32"),s=Tu(a,e).asType("float32").mul(t).sum(0);r.push(s)}return cr(r)},e.prototype.argMin=function(t,e){Kl(t,"argMin");var n=[e];Qe("argMin",n,t.rank);for(var r=Ye(t.shape,n),o=r[0],i=r[1],a=gn(o,"int32"),s=D(i),u=this.readSync(a.dataId),c=this.readSync(t.dataId),l=0;l<u.length;++l){for(var h=l*s,f=c[h],p=0,d=0;d<s;++d){var v=c[h+d];v<f&&(f=v,p=d)}u[l]=p}return a},e.prototype.argMax=function(t,e){Kl(t,"argMax");var n=[e];Qe("argMax",n,t.rank);for(var r=Ye(t.shape,n),o=r[0],i=r[1],a=gn(o,"int32"),s=D(i),u=this.readSync(a.dataId),c=this.readSync(t.dataId),l=0;l<u.length;++l){for(var h=l*s,f=c[h],p=0,d=0;d<s;++d){var v=c[h+d];v>f&&(f=v,p=d)}u[l]=p}return a},e.prototype.cumsum=function(t,e,n,r){if(Kl(t,"cumsum"),e!==t.rank-1)throw new Error("backend.cumsum in CPU expects an inner-most axis="+(t.rank-1)+" but got axis="+e);for(var o=St(t.dtype,"int32"),i=gn(t.shape,o),a=this.readSync(i.dataId),s=this.readSync(t.dataId),u=t.shape[t.rank-1],c=r?function(t,e){return t+u-e-1}:function(t,e){return t+e},l=0;l<s.length;l+=u)for(var h=0;h<u;h++){var f=c(l,h);if(0===h)a[f]=n?0:s[f];else{var p=c(l,h-1);a[f]=n?s[p]+a[p]:s[f]+a[p]}}return i},e.prototype.equal=function(t,e){return Kl([t,e],"equal"),this.broadcastedBinaryOp(t,e,"bool",(function(t,e){return t===e?1:0}))},e.prototype.notEqual=function(t,e){return Kl([t,e],"notEqual"),this.broadcastedBinaryOp(t,e,"bool",(function(t,e){return t!==e?1:0}))},e.prototype.less=function(t,e){return Kl([t,e],"less"),this.broadcastedBinaryOp(t,e,"bool",(function(t,e){return t<e?1:0}))},e.prototype.lessEqual=function(t,e){return Kl([t,e],"lessEqual"),this.broadcastedBinaryOp(t,e,"bool",(function(t,e){return t<=e?1:0}))},e.prototype.greater=function(t,e){return Kl([t,e],"greater"),this.broadcastedBinaryOp(t,e,"bool",(function(t,e){return t>e?1:0}))},e.prototype.greaterEqual=function(t,e){return Kl([t,e],"greaterEqual"),this.broadcastedBinaryOp(t,e,"bool",(function(t,e){return t>=e?1:0}))},e.prototype.logicalNot=function(t){Kl(t,"logicalNot");for(var e=this.readSync(t.dataId),n=new Uint8Array(e.length),r=0;r<e.length;++r)n[r]=e[r]?0:1;return this.makeOutput(n,t.shape,"bool")},e.prototype.logicalAnd=function(t,e){return Kl([t,e],"logicalAnd"),this.broadcastedBinaryOp(t,e,"bool",(function(t,e){return t&&e}))},e.prototype.logicalOr=function(t,e){return Kl([t,e],"logicalOr"),this.broadcastedBinaryOp(t,e,"bool",(function(t,e){return t||e}))},e.prototype.select=function(t,e,n){Kl([t,e,n],"select");for(var r=this.readSync(t.dataId),o=this.readSync(e.dataId),i=this.readSync(n.dataId),a=gn(e.shape,St(e.dtype,n.dtype)),s=this.readSync(a.dataId),u=0,c=0===t.rank||t.rank>1||1===e.rank?1:D(e.shape.slice(1)),l=0;l<r.length;l++)for(var h=0;h<c;h++)1===r[l]?s[u++]=o[l]:s[u++]=i[l];return a},e.prototype.where=function(t){Kl([t],"where");var e=this.readSync(t.dataId);return mo(t.shape,e)},e.prototype.topk=function(t,e,n){return Kl(t,"topk"),vo(this.readSync(t.dataId),t.shape,t.dtype,e)},e.prototype.min=function(t,e){Kl(t,"min"),Qe("min",e,t.rank);for(var n=Ye(t.shape,e),r=n[0],o=n[1],i=gn(r,t.dtype),a=D(o),s=this.readSync(i.dataId),u=this.readSync(t.dataId),c=0;c<s.length;++c){for(var l=c*a,h=u[l],f=0;f<a;++f){var p=u[l+f];p<h&&(h=p)}s[c]=h}return i},e.prototype.minimum=function(t,e){return Kl([t,e],"minimum"),this.broadcastedBinaryOp(t,e,t.dtype,(function(t,e){return Math.min(t,e)}))},e.prototype.mod=function(t,e){return Kl([t,e],"mod"),this.broadcastedBinaryOp(t,e,t.dtype,(function(t,e){var 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i},e.prototype.squaredDifference=function(t,e){return Kl([t,e],"squaredDifference"),this.broadcastedBinaryOp(t,e,t.dtype,(function(t,e){var n=t-e;return n*n}))},e.prototype.ceil=function(t){Kl(t,"ceil");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r)n[r]=Math.ceil(e[r]);return this.makeOutput(n,t.shape,"float32")},e.prototype.floor=function(t){Kl(t,"floor");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r)n[r]=Math.floor(e[r]);return this.makeOutput(n,t.shape,"float32")},e.prototype.sign=function(t){Kl(t,"x");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r)e[r]<0?n[r]=-1:e[r]>0?n[r]=1:n[r]=0;return this.makeOutput(n,t.shape,"float32")},e.prototype.isNaN=function(t){Kl(t,"x");for(var e=this.readSync(t.dataId),n=new Uint8Array(e.length),r=0;r<e.length;++r)Number.isNaN(e[r])&&(n[r]=1);return this.makeOutput(n,t.shape,"bool")},e.prototype.isInf=function(t){Kl(t,"x");for(var 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this.makeOutput(n,t.shape,"float32")},e.prototype.log=function(t){Kl(t,"log");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=e[r];n[r]=Math.log(o)}return this.makeOutput(n,t.shape,"float32")},e.prototype.log1p=function(t){Kl(t,"log1p");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=e[r];n[r]=Math.log1p(o)}return this.makeOutput(n,t.shape,"float32")},e.prototype.sqrt=function(t){Kl(t,"sqrt");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=e[r];n[r]=Math.sqrt(o)}return this.makeOutput(n,t.shape,"float32")},e.prototype.rsqrt=function(t){Kl(t,"rsqrt");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=e[r];n[r]=1/Math.sqrt(o)}return this.makeOutput(n,t.shape,"float32")},e.prototype.reciprocal=function(t){Kl(t,"reciprocal");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r)n[r]=1/e[r];return 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this.makeOutput(n,e.shape,"float32")},e.prototype.selu=function(t){Kl(t,"selu");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r){var o=n[r];e[r]=o>=0?1.0507009873554805*o:1.7580993408473768*(Math.exp(o)-1)}return this.makeOutput(e,t.shape,"float32")},e.prototype.clip=function(t,e,n){Kl(t,"clip");for(var r=new Float32Array(t.size),o=this.readSync(t.dataId),i=0;i<o.length;++i){var a=o[i];r[i]=a>n?n:a<e?e:a}return this.makeOutput(r,t.shape,"float32")},e.prototype.abs=function(t){for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.abs(n[r]);return this.makeOutput(e,t.shape,"float32")},e.prototype.complexAbs=function(t){for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<t.size;++r){var o=n[2*r],i=n[2*r+1];e[r]=Math.hypot(o,i)}return this.makeOutput(e,t.shape,"float32")},e.prototype.int=function(t){Kl(t,"int");for(var e=new Int32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=n[r];return this.makeOutput(e,t.shape,"int32")},e.prototype.sigmoid=function(t){Kl(t,"sigmoid");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=1/(1+Math.exp(-n[r]));return this.makeOutput(e,t.shape,"float32")},e.prototype.softplus=function(t){Kl(t,"softplus");for(var e=Math.log(1.1920928955078125e-7)+2,n=new Float32Array(t.size),r=this.readSync(t.dataId),o=0;o<r.length;++o){var i,a=r[o]>-e,s=r[o]<e,u=Math.exp(r[o]);i=s?u:a?r[o]:Math.log(1+u),n[o]=i}return this.makeOutput(n,t.shape,"float32")},e.prototype.sin=function(t){Kl(t,"sin");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.sin(n[r]);return this.makeOutput(e,t.shape,"float32")},e.prototype.cos=function(t){Kl(t,"cos");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.cos(n[r]);return this.makeOutput(e,t.shape,"float32")},e.prototype.tan=function(t){Kl(t,"tan");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.tan(n[r]);return this.makeOutput(e,t.shape,"float32")},e.prototype.asin=function(t){Kl(t,"asin");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.asin(n[r]);return this.makeOutput(e,t.shape,"float32")},e.prototype.acos=function(t){Kl(t,"acos");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.acos(n[r]);return this.makeOutput(e,t.shape,"float32")},e.prototype.atan=function(t){Kl(t,"atan");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.atan(n[r]);return this.makeOutput(e,t.shape,"float32")},e.prototype.atan2=function(t,e){return Kl([t,e],"atan2"),this.broadcastedBinaryOp(t,e,t.dtype,(function(t,e){return Math.atan2(t,e)}))},e.prototype.sinh=function(t){Kl(t,"sinh");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.sinh(n[r]);return this.makeOutput(e,t.shape,"float32")},e.prototype.cosh=function(t){Kl(t,"cosh");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.cosh(n[r]);return this.makeOutput(e,t.shape,"float32")},e.prototype.tanh=function(t){Kl(t,"tanh");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=N(n[r]);return this.makeOutput(e,t.shape,"float32")},e.prototype.asinh=function(t){Kl(t,"asinh");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.asinh(n[r]);return this.makeOutput(e,t.shape,"float32")},e.prototype.acosh=function(t){Kl(t,"acosh");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.acosh(n[r]);return this.makeOutput(e,t.shape,"float32")},e.prototype.atanh=function(t){Kl(t,"atanh");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.atanh(n[r]);return this.makeOutput(e,t.shape,"float32")},e.prototype.erf=function(t){Kl(t,"erf");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r){var o=Math.sign(n[r]),i=Math.abs(n[r]),a=1/(1+.3275911*i);e[r]=o*(1-((((1.061405429*a-1.453152027)*a+1.421413741)*a-.284496736)*a+.254829592)*a*Math.exp(-i*i))}return this.makeOutput(e,t.shape,"float32")},e.prototype.step=function(t,e){void 0===e&&(e=0),Kl(t,"step");for(var n=new Float32Array(t.size),r=this.readSync(t.dataId),o=0;o<r.length;++o){var i=r[o];isNaN(i)?n[o]=NaN:n[o]=i>0?1:e}return this.makeOutput(n,t.shape,"float32")},e.prototype.fusedConv2d=function(t){var e=t.input,n=t.filter,r=t.convInfo,o=t.bias,i=t.activation,a=t.preluActivationWeights,s=this.conv2d(e,n,r);return o&&(s=this.add(s,o)),i&&(s=Xl(this,s,i,a)),s},e.prototype.conv2d=function(t,e,n){Kl([t,e],"conv2d");for(var r=n.filterHeight,o=n.filterWidth,i=n.dilationHeight,a=n.dilationWidth,s=n.padInfo.left,u=n.padInfo.top,c="channelsLast"===n.dataFormat,l=zn(n.outShape,t.dtype),h=t.strides[0],f=c?t.strides[1]:t.strides[2],p=c?t.strides[2]:1,d=c?1:t.strides[1],v=l.strides[0],m=c?l.strides[1]:l.strides[2],g=c?l.strides[2]:1,y=c?1:l.strides[1],x=this.readSync(t.dataId),b=this.readSync(e.dataId),w=l.values,C=0;C<n.batchSize;++C)for(var E=C*h,_=C*v,I=0;I<n.outHeight;++I)for(var R=_+I*m,S=I*n.strideHeight-u,k=0;k<r;k++){var D=S+k*i;if(!(D<0||D>=n.inHeight))for(var A=k*e.strides[0],T=E+D*f,N=0;N<n.outWidth;++N)for(var F=R+N*g,M=N*n.strideWidth-s,O=0;O<o;O++){var P=M+O*a;if(!(P<0||P>=n.inWidth))for(var B=T+P*p,L=A+O*e.strides[1],W=0;W<n.inChannels;++W){for(var z=x[B+W*d],U=0;U<n.outChannels;++U)w[F+U*y]+=z*b[L+U];L+=n.outChannels}}}return l.toTensor()},e.prototype.conv3d=function(t,e,n){for(var r=n.filterDepth,o=n.filterHeight,i=n.filterWidth,a=n.dilationDepth,s=n.dilationHeight,u=n.dilationWidth,c=n.padInfo.front,l=n.padInfo.left,h=n.padInfo.top,f=zn(n.outShape,t.dtype),p=this.readSync(t.dataId),d=this.readSync(e.dataId),v=f.values,m=0;m<n.batchSize;++m)for(var g=m*t.strides[0],y=m*f.strides[0],x=0;x<n.outDepth;++x)for(var b=y+x*f.strides[1],w=x*n.strideDepth-c,C=0;C<r;C++){var E=w+C*a;if(!(E<0||E>=n.inDepth))for(var _=C*e.strides[0],I=g+E*t.strides[1],R=0;R<n.outHeight;++R)for(var S=b+R*f.strides[2],k=R*n.strideHeight-h,D=0;D<o;D++){var A=k+D*s;if(!(A<0||A>=n.inHeight))for(var T=_+D*e.strides[1],N=I+A*t.strides[2],F=0;F<n.outWidth;++F)for(var M=S+F*n.outChannels,O=F*n.strideWidth-l,P=0;P<i;P++){var B=O+P*u;if(!(B<0||B>=n.inWidth))for(var L=T+P*e.strides[2],W=N+B*n.inChannels,z=L,U=0;U<n.inChannels;++U){for(var V=p[W+U],G=0;G<n.outChannels;++G)v[M+G]+=V*d[z+G];z+=n.outChannels}}}}return f.toTensor()},e.prototype.conv2dDerInput=function(t,e,n){Kl([t,e],"conv2dDerInput");for(var r=zn(n.inShape,"float32"),o=r.values,i=this.readSync(t.dataId),a=this.readSync(e.dataId),s=e.strides,u=s[0],c=s[1],l=s[2],h=n.batchSize,f=n.filterHeight,p=n.filterWidth,d=n.inChannels,v=n.inHeight,m=n.inWidth,g=n.outChannels,y=n.outHeight,x=n.outWidth,b=n.strideHeight,w=n.strideWidth,C=n.dataFormat,E=f-1-n.padInfo.top,_=p-1-n.padInfo.left,I="channelsLast"===C,R=r.strides[0],S=I?r.strides[1]:r.strides[2],k=I?r.strides[2]:1,D=I?1:r.strides[1],A=t.strides[0],T=I?t.strides[1]:t.strides[2],N=I?t.strides[2]:1,F=I?1:t.strides[1],M=0;M<h;++M)for(var O=0;O<d;++O)for(var P=0;P<v;++P)for(var B=P-E,L=Math.max(0,Math.ceil(B/b)),W=Math.min(y,(f+B)/b),z=0;z<m;++z){for(var U=z-_,V=Math.max(0,Math.ceil(U/w)),G=Math.min(x,(p+U)/w),H=0,j=L;j<W;++j)for(var q=j*b-B,K=V;K<G;++K)for(var X=A*M+T*j+N*K,$=u*(f-1-q)+c*(p-1-(K*w-U))+l*O,Y=0;Y<g;++Y)H+=i[X+F*Y]*a[$+Y];o[R*M+S*P+k*z+D*O]=H}return r.toTensor()},e.prototype.conv3dDerInput=function(t,e,n){for(var r=zn(n.inShape,"float32"),o=r.values,i=r.strides,a=i[0],s=i[1],u=i[2],c=i[3],l=this.readSync(t.dataId),h=t.strides,f=h[0],p=h[1],d=h[2],v=h[3],m=this.readSync(e.dataId),g=e.strides,y=g[0],x=g[1],b=g[2],w=g[3],C=n.batchSize,E=n.filterDepth,_=n.filterHeight,I=n.filterWidth,R=n.inChannels,S=n.inDepth,k=n.inHeight,D=n.inWidth,A=n.outChannels,T=n.outDepth,N=n.outHeight,F=n.outWidth,M=n.strideDepth,O=n.strideHeight,P=n.strideWidth,B=E-1-n.padInfo.front,L=_-1-n.padInfo.top,W=I-1-n.padInfo.left,z=0;z<C;++z)for(var U=0;U<R;++U)for(var V=0;V<S;++V)for(var G=V-B,H=Math.max(0,Math.ceil(G/M)),j=Math.min(T,(E+G)/M),q=0;q<k;++q)for(var K=q-L,X=Math.max(0,Math.ceil(K/O)),$=Math.min(N,(_+K)/O),Y=0;Y<D;++Y){for(var J=Y-W,Q=Math.max(0,Math.ceil(J/P)),Z=Math.min(F,(I+J)/P),tt=0,et=H;et<j;++et)for(var nt=et*M-G,rt=X;rt<$;++rt)for(var ot=rt*O-K,it=Q;it<Z;++it)for(var at=f*z+p*et+d*rt+v*it,st=y*(E-1-nt)+x*(_-1-ot)+b*(I-1-(it*P-J))+w*U,ut=0;ut<A;++ut)tt+=l[at+ut]*m[st+ut];o[a*z+s*V+u*q+c*Y+U]=tt}return r.toTensor()},e.prototype.conv2dDerFilter=function(t,e,n){Kl([t,e],"conv2dDerFilter");for(var r=n.strideHeight,o=n.strideWidth,i=n.filterHeight,a=n.filterWidth,s="channelsLast"===n.dataFormat,u=zn(n.filterShape,"float32"),c=n.padInfo.left,l=n.padInfo.top,h=this.bufferSync(t),f=this.bufferSync(e),p=0;p<i;++p)for(var d=Math.max(0,Math.ceil((l-p)/r)),v=Math.min(n.outHeight,(n.inHeight+l-p)/r),m=0;m<a;++m)for(var g=Math.max(0,Math.ceil((c-m)/o)),y=Math.min(n.outWidth,(n.inWidth+c-m)/o),x=0;x<n.inChannels;++x)for(var b=0;b<n.outChannels;++b){for(var w=0,C=0;C<n.batchSize;++C)for(var E=d;E<v;++E)for(var _=p+E*r-l,I=g;I<y;++I){var R=m+I*o-c;w+=s?h.get(C,_,R,x)*f.get(C,E,I,b):h.get(C,x,_,R)*f.get(C,b,E,I)}u.set(w,p,m,x,b)}return u.toTensor()},e.prototype.conv3dDerFilter=function(t,e,n){for(var r=n.strideDepth,o=n.strideHeight,i=n.strideWidth,a=n.filterDepth,s=n.filterHeight,u=n.filterWidth,c=zn(n.filterShape,"float32"),l=c.values,h=c.strides,f=h[0],p=h[1],d=h[2],v=h[3],m=this.readSync(e.dataId),g=e.strides,y=g[0],x=g[1],b=g[2],w=g[3],C=this.readSync(t.dataId),E=t.strides,_=E[0],I=E[1],R=E[2],S=E[3],k=n.padInfo.front,D=n.padInfo.left,A=n.padInfo.top,T=0;T<a;++T)for(var N=Math.max(0,Math.ceil((k-T)/r)),F=Math.min(n.outDepth,(n.inDepth+k-T)/r),M=T*f,O=0;O<s;++O)for(var P=Math.max(0,Math.ceil((A-O)/o)),B=Math.min(n.outHeight,(n.inHeight+A-O)/o),L=O*p+M,W=0;W<u;++W)for(var z=Math.max(0,Math.ceil((D-W)/i)),U=Math.min(n.outWidth,(n.inWidth+D-W)/i),V=W*d+L,G=0;G<n.inChannels;++G)for(var H=G*v+V,j=0;j<n.outChannels;++j){for(var q=0,K=0;K<n.batchSize;++K)for(var X=K*_,$=K*y,Y=N;Y<F;++Y)for(var J=(T+Y*r-k)*I+X,Q=Y*x+$,Z=P;Z<B;++Z)for(var tt=(O+Z*o-A)*R+J,et=Z*b+Q,nt=z;nt<U;++nt){var rt=nt*w+et;q+=C[(W+nt*i-D)*S+tt+G]*m[rt+j]}l[H+j]=q}return c.toTensor()},e.prototype.fusedDepthwiseConv2D=function(t){var e=t.input,n=t.filter,r=t.convInfo,o=t.bias,i=t.activation,a=t.preluActivationWeights,s=this.depthwiseConv2D(e,n,r);return o&&(s=this.add(s,o)),i&&(s=Xl(this,s,i,a)),s},e.prototype.depthwiseConv2D=function(t,e,n){Kl([t,e],"depthwiseConv2D");for(var r=n.filterHeight,o=n.filterWidth,i=n.dilationHeight,a=n.dilationWidth,s=n.padInfo.left,u=n.padInfo.top,c=n.outChannels/n.inChannels,l=zn(n.outShape,t.dtype),h=this.readSync(t.dataId),f=this.readSync(e.dataId),p=l.values,d=0;d<n.batchSize;++d)for(var v=d*t.strides[0],m=d*l.strides[0],g=0;g<n.outHeight;++g)for(var y=m+g*l.strides[1],x=g*n.strideHeight-s,b=0;b<r;++b){var w=x+b*i;if(!(w<0||w>=n.inHeight))for(var C=b*e.strides[0],E=v+w*t.strides[1],_=0;_<n.outWidth;++_)for(var I=y+_*l.strides[2],R=_*n.strideWidth-u,S=0;S<o;++S){var k=R+S*a;if(!(k<0||k>=n.inWidth))for(var D=C+S*e.strides[1],A=E+k*n.inChannels,T=I,N=D,F=0;F<n.inChannels;++F){for(var M=h[A+F],O=0;O<c;++O)p[T+O]+=M*f[N+O];T+=c,N+=c}}}return l.toTensor()},e.prototype.depthwiseConv2DDerInput=function(t,e,n){Kl([t,e],"depthwiseConv2DDerInput");for(var r=zn(n.inShape,"float32"),o=r.values,i=r.strides,a=i[0],s=i[1],u=i[2],c=this.readSync(t.dataId),l=t.strides,h=l[0],f=l[1],p=l[2],d=this.readSync(e.dataId),v=e.strides,m=v[0],g=v[1],y=v[2],x=n.batchSize,b=n.filterHeight,w=n.filterWidth,C=n.inChannels,E=n.inHeight,_=n.inWidth,I=n.outChannels,R=n.outHeight,S=n.outWidth,k=n.strideHeight,D=n.strideWidth,A=b-1-n.padInfo.top,T=w-1-n.padInfo.left,N=I/C,F=0;F<x;++F)for(var M=0;M<C;++M)for(var O=0;O<E;++O)for(var P=O-A,B=Math.max(0,Math.ceil(P/k)),L=Math.min(R,(b+P)/k),W=0;W<_;++W){for(var z=W-T,U=Math.max(0,Math.ceil(z/D)),V=Math.min(S,(w+z)/D),G=0,H=B;H<L;++H)for(var j=H*k-P,q=U;q<V;++q)for(var K=h*F+f*H+p*q,X=m*(b-1-j)+g*(w-1-(q*D-z))+y*M,$=0;$<N;++$)G+=c[K+(M*N+$)]*d[X+$];o[a*F+s*O+u*W+M]=G}return r.toTensor()},e.prototype.depthwiseConv2DDerFilter=function(t,e,n){Kl([t,e],"depthwiseConv2DDerFilter");for(var r=n.strideHeight,o=n.strideWidth,i=n.filterHeight,a=n.filterWidth,s=zn(n.filterShape,"float32"),u=n.padInfo.left,c=n.padInfo.top,l=n.outChannels/n.inChannels,h=this.bufferSync(t),f=this.bufferSync(e),p=0;p<i;++p)for(var d=Math.max(0,Math.ceil((c-p)/r)),v=Math.min(n.outHeight,(n.inHeight+c-p)/r),m=0;m<a;++m)for(var g=Math.max(0,Math.ceil((u-m)/o)),y=Math.min(n.outWidth,(n.inWidth+u-m)/o),x=0;x<n.outChannels;++x){for(var b=Math.trunc(x/l),w=x%l,C=0,E=0;E<n.batchSize;++E)for(var _=d;_<v;++_)for(var I=p+_*r-c,R=g;R<y;++R){var S=m+R*o-u;C+=h.get(E,I,S,b)*f.get(E,_,R,x)}s.set(C,p,m,b,w)}return s.toTensor()},e.prototype.tile=function(t,e){return Kl(t,"tile"),po(this.bufferSync(t),e)},e.prototype.pad=function(t,e,n){Kl(t,"pad");var r=e.map((function(e,n){return e[0]+t.shape[n]+e[1]})),o=e.map((function(t){return t[0]})),i=this.bufferSync(t),a=zn(r,t.dtype);0!==n&&a.values.fill(n);for(var s=0;s<t.size;s++){var u=i.indexToLoc(s),c=u.map((function(t,e){return t+o[e]}));a.set.apply(a,[i.get.apply(i,u)].concat(c))}return a.toTensor()},e.prototype.transpose=function(t,e){Kl(t,"transpose");for(var n=new Array(t.rank),r=0;r<n.length;r++)n[r]=t.shape[e[r]];var o=this.readSync(t.dataId),i=zn(n,t.dtype),a=this.bufferSync(t);for(r=0;r<t.size;++r){for(var s=a.indexToLoc(r),u=new Array(s.length),c=0;c<u.length;c++)u[c]=s[e[c]];var l=i.locToIndex(u);i.values[l]=o[r]}return i.toTensor()},e.prototype.gather=function(t,e,n){Kl([t,e],"gather");var r=t.shape.slice(),o=this.readSync(e.dataId);r[n]=o.length;for(var i=zn(r,t.dtype),a=this.bufferSync(t),s=0;s<i.size;++s){var u=i.indexToLoc(s),c=u.slice();c[n]=o[u[n]];var l=a.locToIndex(c);i.values[s]=a.values[l]}return i.toTensor()},e.prototype.batchToSpaceND=function(t,e,n){Kl([t],"batchToSpaceND");var r=e.reduce((function(t,e){return t*e})),o=pr(t.shape,e,r),i=dr(o.length,e.length),a=vr(t.shape,e,r),s=mr(n,e.length),u=gr(a,n,e.length);return t.reshape(o).transpose(i).reshape(a).slice(s,u)},e.prototype.spaceToBatchND=function(t,e,n){Kl([t],"spaceToBatchND");var r=e.reduce((function(t,e){return t*e})),o=[[0,0]];o.push.apply(o,n);for(var i=1+e.length;i<t.shape.length;++i)o.push([0,0]);var a=t.pad(o),s=pr(a.shape,e,r,!1),u=dr(s.length,e.length,!1),c=vr(a.shape,e,r,!1);return a.reshape(s).transpose(u).reshape(c)},e.prototype.pool=function(t,e,n){Kl(t,"pool");for(var r=e.strideHeight,o=e.strideWidth,i=e.dilationHeight,a=e.dilationWidth,s=e.effectiveFilterHeight,u=e.effectiveFilterWidth,c=e.padInfo.top,l=e.padInfo.left,h="max"===n?Number.NEGATIVE_INFINITY:Number.POSITIVE_INFINITY,f=this.readSync(t.dataId),p=zn(e.outShape,t.dtype),d=p.values,v=e.outShape[1]*e.outShape[2]*e.outShape[3],m=e.outShape[2]*e.outShape[3],g=e.outShape[3],y=0;y<e.batchSize;++y)for(var x=y*v,b=y*t.strides[0],w=0;w<e.inChannels;++w)for(var C=0;C<e.outHeight;++C)for(var E=C*r-c,_=Math.max(0,E),I=Math.min(e.inHeight,s+E),R=x+C*m,S=0;S<e.outWidth;++S){for(var k=S*o-l,D=Math.max(0,k),A=Math.min(e.inWidth,u+k),T=h,N=0,F=0,M=_;M<I;M+=i){for(var O=b+M*t.strides[1],P=D;P<A;P+=a){var B=f[O+P*t.strides[2]+w];"max"===n&&B>T?T=B:"avg"===n&&(N+=B,F++)}if(isNaN(T))break}d[R+S*g+w]="avg"===n?N/F:T}return p.toTensor()},e.prototype.maxPool=function(t,e){return this.pool(t,e,"max")},e.prototype.maxPoolPositions=function(t,e){for(var n=zn(e.outShape,"int32"),r=e.strideHeight,o=e.strideWidth,i=e.dilationHeight,a=e.dilationWidth,s=e.effectiveFilterHeight,u=e.effectiveFilterWidth,c=e.padInfo.top,l=e.padInfo.left,h=this.bufferSync(t),f=0;f<e.batchSize;++f)for(var p=0;p<e.inChannels;++p)for(var d=0;d<e.outHeight;++d){for(var v=d*r-c,m=v;m<0;)m+=i;for(var g=Math.min(e.inHeight,s+v),y=0;y<e.outWidth;++y){for(var x=y*o-l,b=x;b<0;)b+=a;for(var w=Math.min(e.inWidth,u+x),C=Number.NEGATIVE_INFINITY,E=-1,_=m;_<g;_+=i)for(var I=_-v,R=b;R<w;R+=a){var S=R-x,k=h.get(f,_,R,p);k>C&&(C=k,E=I*u+S)}n.set(E,f,d,y,p)}}return n.toTensor()},e.prototype.maxPoolBackprop=function(t,e,n,r){Kl([e,n],"maxPoolBackprop");for(var o=this.maxPoolPositions(e,r),i=r.strideHeight,a=r.strideWidth,s=r.dilationHeight,u=r.dilationWidth,c=r.effectiveFilterHeight,l=r.effectiveFilterWidth,h=l-1-r.padInfo.left,f=c-1-r.padInfo.top,p=zn(e.shape,"float32"),d=this.bufferSync(o),v=this.bufferSync(t),m=0;m<r.batchSize;++m)for(var g=0;g<r.inChannels;++g)for(var y=0;y<r.inHeight;++y)for(var x=0;x<r.inWidth;++x){for(var b=y-f,w=x-h,C=0,E=0;E<c;E+=s){var _=(b+E)/i;if(!(_<0||_>=r.outHeight||Math.floor(_)!==_))for(var I=0;I<l;I+=u){var R=(w+I)/a;if(!(R<0||R>=r.outWidth||Math.floor(R)!==R)){var S=c*l-1-d.get(m,_,R,g)===E*l+I?1:0;0!==S&&(C+=v.get(m,_,R,g)*S)}}}p.set(C,m,y,x,g)}return p.toTensor()},e.prototype.avgPoolBackprop=function(t,e,n){Kl([t,e],"avgPoolBackprop");for(var r=n.strideHeight,o=n.strideWidth,i=n.filterHeight,a=n.filterWidth,s=n.dilationHeight,u=n.dilationWidth,c=n.effectiveFilterHeight,l=n.effectiveFilterWidth,h=l-1-n.padInfo.left,f=c-1-n.padInfo.top,p=zn(e.shape,"float32"),d=1/(i*a),v=this.bufferSync(t),m=0;m<n.batchSize;++m)for(var g=0;g<n.inChannels;++g)for(var y=0;y<n.inHeight;++y)for(var x=0;x<n.inWidth;++x){for(var b=y-f,w=x-h,C=0,E=0;E<c;E+=s){var _=(b+E)/r;if(!(_<0||_>=n.outHeight||Math.floor(_)!==_))for(var I=0;I<l;I+=u){var R=(w+I)/o;R<0||R>=n.outWidth||Math.floor(R)!==R||(C+=v.get(m,_,R,g))}}p.set(C*d,m,y,x,g)}return p.toTensor()},e.prototype.pool3d=function(t,e,n){Kl(t,"pool3d");for(var r=e.strideDepth,o=e.strideHeight,i=e.strideWidth,a=e.dilationDepth,s=e.dilationHeight,u=e.dilationWidth,c=e.effectiveFilterDepth,l=e.effectiveFilterHeight,h=e.effectiveFilterWidth,f=e.padInfo.front,p=e.padInfo.top,d=e.padInfo.left,v="max"===n?Number.NEGATIVE_INFINITY:Number.POSITIVE_INFINITY,m=this.readSync(t.dataId),g=zn(e.outShape,t.dtype),y=g.values,x=e.outShape[1]*e.outShape[2]*e.outShape[3]*e.outShape[4],b=e.outShape[2]*e.outShape[3]*e.outShape[4],w=e.outShape[3]*e.outShape[4],C=e.outShape[4],E=0;E<e.batchSize;++E)for(var _=E*x,I=E*t.strides[0],R=0;R<e.inChannels;++R)for(var S=0;S<e.outDepth;++S){for(var k=S*r-f,D=k;D<0;)D+=a;for(var A=Math.min(e.inDepth,c+k),T=_+S*b,N=0;N<e.outHeight;++N){for(var F=N*o-p,M=F;M<0;)M+=s;for(var O=Math.min(e.inHeight,l+F),P=T+N*w,B=0;B<e.outWidth;++B){for(var L=B*i-d,W=L;W<0;)W+=u;for(var z=Math.min(e.inWidth,h+L),U=P+B*C,V=v,G=0,H=0,j=D;j<A;j+=a){for(var q=I+j*t.strides[1],K=M;K<O;K+=s){for(var X=q+K*t.strides[2],$=W;$<z;$+=u){var Y=m[X+$*t.strides[3]+R];if("max"===n&&Y>V?V=Y:"avg"===n&&(G+=Y,H++),isNaN(V))break}if(isNaN(V))break}if(isNaN(V))break}y[U+R]="avg"===n?G/H:V}}}return g.toTensor()},e.prototype.avgPool3d=function(t,e){return Kl(t,"avgPool3d"),this.pool3d(t,e,"avg").toFloat()},e.prototype.avgPool3dBackprop=function(t,e,n){Kl([t,e],"avgPool3dBackprop");for(var r=n.strideDepth,o=n.strideHeight,i=n.strideWidth,a=n.filterDepth,s=n.filterHeight,u=n.filterWidth,c=n.dilationDepth,l=n.dilationHeight,h=n.dilationWidth,f=n.effectiveFilterDepth,p=n.effectiveFilterHeight,d=n.effectiveFilterWidth,v=f-1-n.padInfo.front,m=d-1-n.padInfo.left,g=p-1-n.padInfo.top,y=zn(e.shape,"float32"),x=1/(a*s*u),b=this.bufferSync(t),w=0;w<n.batchSize;++w)for(var C=0;C<n.inChannels;++C)for(var E=0;E<n.inDepth;++E)for(var _=0;_<n.inHeight;++_)for(var I=0;I<n.inWidth;++I){for(var R=E-v,S=_-g,k=I-m,D=0,A=0;A<f;A+=c){var T=(R+A)/r;if(!(T<0||T>=n.outDepth||Math.floor(T)!==T))for(var N=0;N<p;N+=l){var F=(S+N)/o;if(!(F<0||F>=n.outHeight||Math.floor(F)!==F))for(var M=0;M<d;M+=h){var O=(k+M)/i;O<0||O>=n.outWidth||Math.floor(O)!==O||(D+=b.get(w,T,F,O,C))}}}y.set(D*x,w,E,_,I,C)}return y.toTensor()},e.prototype.maxPool3d=function(t,e){return Kl(t,"maxPool3d"),this.pool3d(t,e,"max").toFloat()},e.prototype.maxPool3dPositions=function(t,e){for(var n=zn(e.outShape,"int32"),r=e.strideDepth,o=e.strideHeight,i=e.strideWidth,a=e.dilationDepth,s=e.dilationHeight,u=e.dilationWidth,c=e.effectiveFilterDepth,l=e.effectiveFilterHeight,h=e.effectiveFilterWidth,f=e.padInfo.front,p=e.padInfo.top,d=e.padInfo.left,v=this.bufferSync(t),m=0;m<e.batchSize;++m)for(var g=0;g<e.inChannels;++g)for(var y=0;y<e.outDepth;++y){for(var x=y*r-f,b=x;b<0;)b+=a;for(var w=Math.min(e.inDepth,c+x),C=0;C<e.outHeight;++C){for(var E=C*o-p,_=E;_<0;)_+=s;for(var I=Math.min(e.inHeight,l+E),R=0;R<e.outWidth;++R){for(var S=R*i-d,k=S;k<0;)k+=u;for(var D=Math.min(e.inWidth,h+S),A=Number.NEGATIVE_INFINITY,T=-1,N=b;N<w;N+=a)for(var F=N-x,M=_;M<I;M+=s)for(var O=M-E,P=k;P<D;P+=u){var B=P-S,L=v.get(m,N,M,P,g);L>=A&&(A=L,T=F*l*h+O*l+B)}n.set(T,m,y,C,R,g)}}}return n.toTensor()},e.prototype.maxPool3dBackprop=function(t,e,n,r){Kl([e,n],"maxPool3dBackprop");for(var o=this.maxPool3dPositions(e,r),i=r.strideDepth,a=r.strideHeight,s=r.strideWidth,u=r.dilationDepth,c=r.dilationHeight,l=r.dilationWidth,h=r.effectiveFilterDepth,f=r.effectiveFilterHeight,p=r.effectiveFilterWidth,d=h-1-r.padInfo.front,v=p-1-r.padInfo.left,m=f-1-r.padInfo.top,g=zn(e.shape,"float32"),y=this.bufferSync(o),x=this.bufferSync(t),b=0;b<r.batchSize;++b)for(var w=0;w<r.inChannels;++w)for(var C=0;C<r.inDepth;++C)for(var E=0;E<r.inHeight;++E)for(var _=0;_<r.inWidth;++_){for(var I=C-d,R=E-m,S=_-v,k=0,D=0;D<h;D+=u){var A=(I+D)/i;if(!(A<0||A>=r.outDepth||Math.floor(A)!==A))for(var T=0;T<f;T+=c){var N=(R+T)/a;if(!(N<0||N>=r.outHeight||Math.floor(N)!==N))for(var F=0;F<p;F+=l){var M=(S+F)/s;if(!(M<0||M>=r.outWidth||Math.floor(M)!==M)){var O=h*f*p-1-y.get(b,A,N,M,w)===D*f*p+T*p+F?1:0;0!==O&&(k+=x.get(b,A,N,M,w)*O)}}}}g.set(k,b,C,E,_,w)}return g.toTensor()},e.prototype.cast=function(t,e){return Jr(t,e,this)},e.prototype.reshape=function(t,e){return Qr(t,e)},e.prototype.avgPool=function(t,e){return Kl(t,"avgPool"),this.pool(t,e,"avg").toFloat()},e.prototype.resizeBilinear=function(t,e,n,r){Kl(t,"resizeBilinear");for(var o=t.shape,i=o[0],a=o[1],s=o[2],u=o[3],c=this.readSync(t.dataId),l=new Float32Array(D([i,e,n,u])),h=[r&&e>1?a-1:a,r&&n>1?s-1:s],f=[r&&e>1?e-1:e,r&&n>1?n-1:n],p=0,d=h[0]/f[0],v=h[1]/f[1],m=0;m<i;m++)for(var g=0;g<e;g++)for(var y=d*g,x=Math.floor(y),b=y-x,w=Math.min(a-1,Math.ceil(y)),C=m*t.strides[0]+x*t.strides[1],E=m*t.strides[0]+w*t.strides[1],_=0;_<n;_++)for(var I=v*_,R=Math.floor(I),S=I-R,k=Math.min(s-1,Math.ceil(I)),A=C+R*t.strides[2],T=E+R*t.strides[2],N=C+k*t.strides[2],F=E+k*t.strides[2],M=0;M<u;M++){var O=c[A+M],P=c[T+M],B=O+(c[N+M]-O)*S,L=B+(P+(c[F+M]-P)*S-B)*b;l[p++]=L}return cn(l,[i,e,n,u])},e.prototype.resizeBilinearBackprop=function(t,e,n){Kl([t,e],"resizeBilinearBackprop");for(var r=e.shape,o=r[0],i=r[1],a=r[2],s=r[3],u=t.shape,c=u[1],l=u[2],h=new Float32Array(o*i*a*s),f=[n&&c>1?i-1:i,n&&l>1?a-1:a],p=[n&&c>1?c-1:c,n&&l>1?l-1:l],d=f[0]/p[0],v=f[1]/p[1],m=this.readSync(t.dataId),g=0,y=0;y<o;y++)for(var x=y*e.strides[0],b=0;b<c;b++)for(var w=b*d,C=Math.floor(w),E=Math.min(Math.ceil(w),i-1),_=x+C*e.strides[1],I=x+E*e.strides[1],R=w-C,S=1-R,k=0;k<l;k++)for(var D=k*v,A=Math.floor(D),T=Math.min(Math.ceil(D),a-1),N=D-A,F=1-N,M=_+A*e.strides[2],O=_+T*e.strides[2],P=I+A*e.strides[2],B=I+T*e.strides[2],L=S*F,W=S*N,z=R*F,U=R*N,V=0;V<s;V++){var G=m[g++];h[M+V]+=G*L,h[O+V]+=G*W,h[P+V]+=G*z,h[B+V]+=G*U}return vn(h,[o,a,i,s],e.dtype)},e.prototype.resizeNearestNeighbor=function(t,e,n,r){Kl(t,"resizeNearestNeighbor");for(var o=t.shape,i=o[0],a=o[1],s=o[2],u=o[3],c=this.readSync(t.dataId),l=new Float32Array(i*e*n*u),h=[r&&e>1?a-1:a,r&&n>1?s-1:s],f=[r&&e>1?e-1:e,r&&n>1?n-1:n],p=h[0]/f[0],d=h[1]/f[1],v=0,m=0;m<i;m++)for(var g=m*t.strides[0],y=0;y<e;y++)for(var x=p*y,b=g+Math.min(a-1,r?Math.round(x):Math.floor(x))*t.strides[1],w=0;w<n;w++)for(var C=d*w,E=b+Math.min(s-1,r?Math.round(C):Math.floor(C))*t.strides[2],_=0;_<u;_++){var I=c[E+_];l[v++]=I}return cn(l,[i,e,n,u],t.dtype)},e.prototype.resizeNearestNeighborBackprop=function(t,e,n){Kl([t,e],"resizeNearestNeighborBackprop");for(var r=e.shape,o=r[0],i=r[1],a=r[2],s=r[3],u=t.shape,c=u[1],l=u[2],h=new Float32Array(o*i*a*s),f=this.readSync(t.dataId),p=[n&&c>1?i-1:i,n&&l>1?a-1:a],d=[n&&c>1?c-1:c,n&&l>1?l-1:l],v=p[0]/d[0],m=p[1]/d[1],g=1/v,y=1/m,x=2*Math.ceil(g)+2,b=2*Math.ceil(y)+2,w=0;w<o;w++)for(var C=w*e.strides[0],E=0;E<i;E++)for(var _=C+E*e.strides[1],I=Math.floor(E*g),R=Math.floor(I-x/2),S=0;S<a;S++)for(var k=_+S*e.strides[2],D=Math.floor(S*y),A=Math.floor(D-b/2),T=0;T<s;T++){for(var N=0,F=0;F<x;F++){var M=F+R;if(!(M<0||M>=c)){var O=C+M*t.strides[1],P=M*v;if(E===Math.min(i-1,n?Math.round(P):Math.floor(P)))for(var B=0;B<b;B++){var L=B+A;if(!(L<0||L>=l)){var W=O+L*t.strides[2],z=L*m;S===Math.min(a-1,n?Math.round(z):Math.floor(z))&&(N+=f[W+T])}}}}h[k+T]=N}return vn(h,e.shape,e.dtype)},e.prototype.batchNormalization=function(t,e,n,r,o,i){Kl([t,e,n,o,i],"batchNorm");for(var a=this.readSync(t.dataId),s=this.readSync(e.dataId),u=this.readSync(n.dataId),c=o?this.readSync(o.dataId):new Float32Array([1]),l=i?this.readSync(i.dataId):new Float32Array([0]),h=new Float32Array(a.length),f=l.length,p=c.length,d=u.length,v=s.length,m=0,g=0,y=0,x=0,b=0;b<a.length;++b)h[b]=l[m++]+(a[b]-s[g++])*c[y++]/Math.sqrt(u[x++]+r),m>=f&&(m=0),g>=v&&(g=0),y>=p&&(y=0),x>=d&&(x=0);return vn(h,t.shape)},e.prototype.localResponseNormalization4D=function(t,e,n,r,o){Kl(t,"localResponseNormalization4D");var i=t.shape[3],a=i-1,s=this.readSync(t.dataId),u=t.size,c=new Float32Array(u);function l(t){for(var n=t%i,r=t-n+Math.max(0,n-e),o=t-n+Math.min(n+e,a),u=0;r<=o;r++){var c=s[r];u+=c*c}return u}for(var h=0;h<u;h++){var f=l(h),p=s[h]*Math.pow(n+r*f,-o);c[h]=p}return vn(c,t.shape)},e.prototype.LRNGrad=function(t,e,n,r,o,i,a){Kl(t,"LRNGrad");for(var s=t.shape[3],u=this.readSync(t.dataId),c=this.readSync(e.dataId),l=this.readSync(n.dataId),h=new Float32Array(t.size),f=t.size,p=0;p<f;p++){for(var d=p%s,v=p-d+Math.max(0,d-r),m=p-d+Math.min(s,d+r+1),g=0,y=v;y<m;y++)g+=Math.pow(c[y],2);for(g=i*g+o,y=v;y<m;y++){var x=-2*i*a*c[y]*l[p]/g;p===y&&(x+=Math.pow(g,-a)),x*=u[p],h[y]+=x}}return vn(h,t.shape)},e.prototype.multinomial=function(t,e,n,r){Kl(t,"multinomial");for(var o=e?t:Tr(t),i=o.shape[0],a=o.shape[1],s=gn([i,n],"int32"),u=this.readSync(s.dataId),c=this.readSync(o.dataId),l=0;l<i;++l){var h=l*a,f=new Float32Array(a-1);f[0]=c[h];for(var p=1;p<f.length;++p)f[p]=f[p-1]+c[h+p];for(var d=Pn(r.toString()),v=l*n,m=0;m<n;++m){var g=d();u[v+m]=f.length;for(var y=0;y<f.length;y++)if(g<f[y]){u[v+m]=y;break}}}return s},e.prototype.oneHot=function(t,e,n,r){Kl(t,"oneHot");var o=new Float32Array(t.size*e);o.fill(r);for(var i=this.readSync(t.dataId),a=0;a<t.size;++a)i[a]>=0&&i[a]<e&&(o[a*e+i[a]]=n);return pn(o,[t.size,e],"int32")},e.prototype.nonMaxSuppression=function(t,e,n,r,o){return Kl(t,"nonMaxSuppression"),ao(this.readSync(t.dataId),this.readSync(e.dataId),n,r,o)},e.prototype.fft=function(t){return this.fftBatch(t,!1)},e.prototype.ifft=function(t){return this.fftBatch(t,!0)},e.prototype.fftBatch=function(t,e){for(var n=t.shape[0],r=t.shape[1],o=zn(t.shape,"float32"),i=zn(t.shape,"float32"),a=sn(t).as2D(n,r),s=un(t).as2D(n,r),u=0;u<n;u++)for(var c=a.slice([u,0],[1,r]),l=s.slice([u,0],[1,r]),h=an(c,l),f=this.readSync(this.fftImpl(h,e).dataId),p=0;p<r;p++){var d=eo(f,p);o.values[u*r+p]=d.real,i.values[u*r+p]=d.imag}return an(o.toTensor(),i.toTensor()).as2D(n,r)},e.prototype.fftImpl=function(t,e){var n=t.as1D(),r=n.size;if(this.isExponentOf2(r)){var o=this.fftRadix2(n,r,e).as2D(t.shape[0],t.shape[1]);return e&&(o=an(sn(o).div(hn(r)),un(o).div(hn(r)))),o}var i=this.readSync(t.dataId),a=function(t){for(var e=new Float32Array(t.length/2),n=new Float32Array(t.length/2),r=0;r<t.length;r+=2)e[r/2]=t[r],n[r/2]=t[r+1];return{real:e,imag:n}}(this.fourierTransformByMatmul(i,r,e));return an(a.real,a.imag).as2D(t.shape[0],t.shape[1])},e.prototype.isExponentOf2=function(t){return 0==(t&t-1)},e.prototype.fftRadix2=function(t,e,n){if(1===e)return t;var r=this.readSync(t.dataId),o=e/2,i=function(t){for(var e=Math.ceil(t.length/4),n=new Float32Array(e),r=new Float32Array(e),o=0;o<t.length;o+=4)n[Math.floor(o/4)]=t[o],r[Math.floor(o/4)]=t[o+1];return{real:n,imag:r}}(r),a=an(i.real,i.imag).as1D(),s=function(t){for(var e=Math.floor(t.length/4),n=new Float32Array(e),r=new Float32Array(e),o=2;o<t.length;o+=4)n[Math.floor(o/4)]=t[o],r[Math.floor(o/4)]=t[o+1];return{real:n,imag:r}}(r),u=an(s.real,s.imag).as1D();a=this.fftRadix2(a,o,n),u=this.fftRadix2(u,o,n);var c=function(t,e){for(var n=new Float32Array(t/2),r=new Float32Array(t/2),o=0;o<Math.ceil(t/2);o++){var i=(e?2:-2)*Math.PI*(o/t);n[o]=Math.cos(i),r[o]=Math.sin(i)}return{real:n,imag:r}}(e,n),l=an(c.real,c.imag).mul(u),h=a.add(l),f=a.sub(l),p=sn(h).concat(sn(f)),d=un(h).concat(un(f));return an(p,d).as1D()},e.prototype.fourierTransformByMatmul=function(t,e,n){for(var r=new Float32Array(2*e),o=0;o<e;o++){for(var i=0,a=0,s=0;s<e;s++){var u=ro(o*s,e,n),c=eo(t,s);i+=c.real*u.real-c.imag*u.imag,a+=c.real*u.imag+c.imag*u.real}n&&(i/=e,a/=e),no(r,i,a,o)}return r},e.prototype.depthToSpace=function(t,e,n){I("NHWC"===n,(function(){return"Only NHWC dataFormat supported on CPU for depthToSpace. Got "+n})),I(e>1,(function(){return"blockSize should be > 1 for depthToSpace, but was: "+e}));for(var r=t.shape[0],o=t.shape[1],i=t.shape[2],a=t.shape[3],s=o*e,u=i*e,c=a/(e*e),l=this.readSync(t.dataId),h=new Float32Array(r*s*u*c),f=0,p=0;p<r;++p)for(var d=0;d<s;++d)for(var v=Math.floor(d/e),m=d%e,g=0;g<u;++g)for(var y=Math.floor(g/e),x=(m*e+g%e)*c,b=0;b<c;++b){var w=b+x+a*(y+i*(v+o*p));h[f++]=l[w]}return vn(h,[r,s,u,c])},e.prototype.broadcastedBinaryOp=function(t,e,n,r){var o=Lr(t.shape,e.shape),i=zn(o,n),a=this.readSync(t.dataId),s=this.readSync(e.dataId),u=Pr(t.shape,o),c=Pr(e.shape,o),l=i.values;if(u.length+c.length===0)for(var h=0;h<l.length;++h)l[h]=r(a[h%a.length],s[h%s.length]);else{var f=this.bufferSync(t),p=this.bufferSync(e),d=function(n){var o=i.indexToLoc(n),h=o.slice(-t.rank);u.forEach((function(t){return h[t]=0}));var d=f.locToIndex(h),v=o.slice(-e.rank);c.forEach((function(t){return v[t]=0}));var m=p.locToIndex(v);l[n]=r(a[d],s[m])};for(h=0;h<l.length;++h)d(h)}return i.toTensor()},e.prototype.broadcastedBinaryComplexOp=function(t,e,n){var r=Lr(t.shape,e.shape),o=zn(r,"float32"),i=zn(r,"float32"),a=this.readSync(t.dataId),s=this.readSync(e.dataId),u=Pr(t.shape,r),c=Pr(e.shape,r),l=o.values,h=i.values;if(u.length+c.length===0)for(var f=0;f<l.length;f++){var p=f%a.length,d=f%s.length,v=n(a[2*p],a[2*p+1],s[2*d],s[2*d+1]);l[f]=v.real,h[f]=v.imag}else{var m=this.bufferSync(this.data.get(t.dataId).complexTensors.real),g=this.bufferSync(this.data.get(e.dataId).complexTensors.real),y=function(r){var i=o.indexToLoc(r),f=i.slice(-t.rank);u.forEach((function(t){return f[t]=0}));var p=m.locToIndex(f),d=i.slice(-e.rank);c.forEach((function(t){return d[t]=0}));var v=g.locToIndex(d),y=n(a[2*p],a[2*p+1],s[2*v],s[2*v+1]);l[r]=y.real,h[r]=y.imag};for(f=0;f<l.length;f++)y(f)}return this.complex(o.toTensor(),i.toTensor())},e.prototype.split=function(t,e,n){return fo(t,e,n)},e.prototype.dispose=function(){},e.prototype.floatPrecision=function(){return 32},e.prototype.epsilon=function(){return 1e-7},e.prototype.cropAndResize=function(t,e,n,r,o,i){for(var a=t.shape,s=a[0],u=a[1],c=a[2],l=a[3],h=e.shape[0],f=r[0],p=r[1],d=zn([h,f,p,l],"float32"),v=this.readSync(e.dataId),m=this.readSync(n.dataId),g=this.readSync(t.dataId),y=t.strides,x=d.strides,b=0;b<h;b++){var w=4*b,C=v[w],E=v[w+1],_=v[w+2],I=v[w+3],R=m[b];if(!(R>=s))for(var S=f>1?(_-C)*(u-1)/(f-1):0,k=p>1?(I-E)*(c-1)/(p-1):0,D=0;D<f;D++){var A=f>1?C*(u-1)+D*S:.5*(C+_)*(u-1);if(A<0||A>u-1)for(var T=0;T<p;T++)for(var N=0;N<l;N++){var F=N+T*x[2]+D*x[1]+b*x[0];d.values[F]=i}else if("bilinear"===o){var M=Math.floor(A),O=Math.ceil(A),P=A-M;for(T=0;T<p;T++)if((j=p>1?E*(c-1)+T*k:.5*(E+I)*(c-1))<0||j>c-1)for(N=0;N<l;N++)F=N+T*x[2]+D*x[1]+b*x[0],d.values[F]=i;else{var B=Math.floor(j),L=Math.ceil(j),W=j-B;for(N=0;N<l;N++){var z=g[F=N+B*y[2]+M*y[1]+R*y[0]],U=g[F=N+L*y[2]+M*y[1]+R*y[0]],V=g[F=N+B*y[2]+O*y[1]+R*y[0]],G=z+(U-z)*W,H=V+(g[F=N+L*y[2]+O*y[1]+R*y[0]]-V)*W;F=N+T*x[2]+D*x[1]+b*x[0],d.values[F]=G+(H-G)*P}}}else for(T=0;T<p;++T){var j;if((j=p>1?E*(c-1)+T*k:.5*(E+I)*(c-1))<0||j>c-1)for(N=0;N<l;N++)F=N+T*x[2]+D*x[1]+b*x[0],d.values[F]=i;else{var q=Math.round(j),K=Math.round(A);for(N=0;N<l;N++){var X=N+q*y[2]+K*y[1]+R*y[0],$=N+T*x[2]+D*x[1]+b*x[0];d.values[$]=g[X]}}}}}return d.toTensor()},e.prototype.sparseToDense=function(t,e,n,r){var o=Cr(0,t,n),i=o.sliceRank,a=o.numUpdates,s=o.sliceSize,u=o.strides,c=o.outputSize;return this.scatter(t,e,n,c,s,a,i,u,r,!1)},e.prototype.gatherND=function(t,e){var n=e.shape,r=n[n.length-1],o=yr(t,e),i=o[0],a=o[1],s=o[2],u=o[3];if(0===a)return cn([],i,t.dtype);for(var c=new vt([a,s],t.dtype),l=this.readSync(e.dataId),h=this.readSync(t.dataId),f=0;f<a;f++){for(var p=[],d=0,v=0;v<r;v++){var m=l[f*r+v];d+=m*u[v],p.push(m)}if(d<0||d>=t.size/s)throw new Error("Invalid indices: "+p+" does not index into "+t.shape);for(var g=0;g<s;g++)c.values[f*s+g]=h[d*s+g]}return c.toTensor().reshape(i)},e.prototype.scatterND=function(t,e,n){var r=Cr(0,t,n),o=r.sliceRank,i=r.numUpdates,a=r.sliceSize,s=r.strides,u=r.outputSize,c=hn(0);return this.scatter(t,e,n,u,a,i,o,s,c,!0)},e.prototype.fill=function(t,e,n){var r=z(n=n||Y(e),D(t));return r.fill(e),Ot.makeTensor(r,t,n,this)},e.prototype.onesLike=function(t){if("string"===t.dtype)throw new Error("onesLike is not supported for string tensors");return this.fill(t.shape,1,t.dtype)},e.prototype.zerosLike=function(t){var e=z(t.dtype,D(t.shape));return this.makeOutput(e,t.shape,t.dtype)},e.prototype.linspace=function(t,e,n){return Zr(t,e,n)},e.prototype.scatter=function(t,e,n,r,o,i,a,s,u,c){var l=[r/o,o],h=this.readSync(t.dataId),f=this.readSync(e.dataId);if(0===r)return cn([],n,e.dtype);var p=new vt(l,e.dtype);p.values.fill(this.readSync(u.dataId)[0]);for(var d=0;d<i;d++){for(var v=[],m=0,g=0;g<a;g++){var y=h[d*a+g];v.push(y),m+=y*s[g]}if(m<0||m>=r/o)throw new Error("Invalid indices: "+v+" does not index into "+n);for(var x=0;x<o;x++)c?p.values[m*o+x]+=f[d*o+x]:p.values[m*o+x]=0===e.rank?f[0]:f[d*o+x]}return p.toTensor().reshape(n)},e}(Mr);Ot.registerBackend("cpu",(function(){return new $l}),1);for(var Yl=0,Jl=[{kernelName:"NonMaxSuppressionV5",backendName:"cpu",kernelFunc:function(t){var e=t.inputs,n=t.backend,r=t.attrs,o=e,i=o.boxes,a=o.scores,s=r,u=s.maxOutputSize,c=s.iouThreshold,l=s.scoreThreshold,h=s.softNmsSigma,f=n;Kl(i,"NonMaxSuppressionWithScore");var p=so(f.data.get(i.dataId).values,f.data.get(a.dataId).values,u,c,l,h);return[p.selectedIndices,p.selectedScores]}},{kernelName:"Square",backendName:"cpu",kernelFunc:function(t){var e=t.inputs,n=t.backend,r=e.x,o=n;Kl(r,"square");for(var i=o.data.get(r.dataId).values,a=new Float32Array(i.length),s=0;s<i.length;++s){var u=i[s];a[s]=u*u}return{dataId:o.write(a,r.shape,r.dtype),shape:r.shape,dtype:r.dtype}}},{kernelName:us,backendName:"cpu",kernelFunc:function(t){var e=t.inputs,n=t.backend,r=e,o=r.a,i=r.b,a=n;Kl([o,i],us);var s=a.data.get(o.dataId).values,u=a.data.get(i.dataId).values,c=function(t,e,n,r,o,i){var a=Lr(t,e),s=a.length,u=Z(a),c=W(o,D(a)),l=t.length,h=e.length,f=Z(t),p=Z(e),d=Pr(t,a),v=Pr(e,a);if(d.length+v.length===0)for(var m=0;m<c.length;++m)c[m]=i(n[m%n.length],r[m%r.length]);else{var g=function(t){var e=ct(t,s,u),o=e.slice(-l);d.forEach((function(t){return o[t]=0}));var a=ut(o,l,f),m=e.slice(-h);v.forEach((function(t){return m[t]=0}));var g=ut(m,h,p);c[t]=i(n[a],r[g])};for(m=0;m<c.length;++m)g(m)}return[c,a]}(o.shape,i.shape,s,u,o.dtype,(function(t,e){var n=t-e;return n*n})),l=c[0],h=c[1];return{dataId:a.write(l,h,o.dtype),shape:h,dtype:o.dtype}}}];Yl<Jl.length;Yl++)y(Jl[Yl]);for(var Ql,Zl=function(t){this.variableNames=["A"];var e=Co(),n=t[0],r=t[1];this.outputShape=t,this.userCode="\n      void main() {\n        ivec3 coords = getOutputCoords();\n        int texR = coords[0];\n        int texC = coords[1];\n        int depth = coords[2];\n        vec2 uv = (vec2(texC, texR) + halfCR) / vec2("+r+".0, "+n+".0);\n\n        vec4 values = "+e.texture2D+"(A, uv);\n        float value;\n        if (depth == 0) {\n          value = values.r;\n        } else if (depth == 1) {\n          value = values.g;\n        } else if (depth == 2) {\n          value = values.b;\n        } else if (depth == 3) {\n          value = values.a;\n        }\n\n        setOutput(floor(value * 255.0 + 0.5));\n      }\n    "},th=function(t){this.variableNames=["A"],this.packedInputs=!1,this.packedOutput=!0;var e=Co(),n=t[0],r=t[1];this.outputShape=t,this.userCode="\n      void main() {\n        ivec3 coords = getOutputCoords();\n        int texR = coords[0];\n        int texC = coords[1];\n        int depth = coords[2];\n\n        vec4 result = vec4(0.);\n\n        for(int row=0; row<=1; row++) {\n          for(int col=0; col<=1; col++) {\n            texC = coords[1] + row;\n            depth = coords[2] + col;\n\n            vec2 uv = (vec2(texC, texR) + halfCR) /\n                       vec2("+r+".0, "+n+".0);\n            vec4 values = "+e.texture2D+"(A, uv);\n            float value;\n            if (depth == 0) {\n              value = values.r;\n            } else if (depth == 1) {\n              value = values.g;\n            } else if (depth == 2) {\n              value = values.b;\n            } else if (depth == 3) {\n              value = values.a;\n            }\n\n            result[row * 2 + col] = floor(value * 255.0 + 0.5);\n          }\n        }\n\n        "+e.output+" = result;\n      }\n    "},eh=0,nh=[{kernelName:"FromPixels",backendName:"webgl",kernelFunc:function(t){var e=t.inputs,n=t.backend,r=t.attrs,o=e.pixels,i=r.numChannels,a="undefined"!=typeof HTMLVideoElement&&o instanceof 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t.prototype.listModels=function(){return u(this,void 0,void 0,(function(){var t=this;return c(this,(function(e){return[2,new Promise((function(e,n){var r=t.indexedDB.open("tensorflowjs",1);r.onupgradeneeded=function(){return _h(r)},r.onsuccess=function(){var t=r.result,o=t.transaction(Ch,"readonly"),i=o.objectStore(Ch).getAll();i.onsuccess=function(){for(var t={},n=0,r=i.result;n<r.length;n++){var o=r[n];t[o.modelPath]=o.modelArtifactsInfo}e(t)},i.onerror=function(e){return t.close(),n(i.error)},o.oncomplete=function(){return t.close()}},r.onerror=function(t){return n(r.error)}}))]}))}))},t.prototype.removeModel=function(t){return u(this,void 0,void 0,(function(){var e=this;return c(this,(function(n){var r;return t=(r=t).startsWith(Ih.URL_SCHEME)?r.slice(Ih.URL_SCHEME.length):r,[2,new Promise((function(n,r){var o=e.indexedDB.open("tensorflowjs",1);o.onupgradeneeded=function(){return _h(o)},o.onsuccess=function(){var e,i=o.result,a=i.transaction(Ch,"readwrite"),s=a.objectStore(Ch),u=s.get(t);u.onsuccess=function(){if(null==u.result)return i.close(),r(new Error("Cannot find model with path '"+t+"' in IndexedDB."));var o=s.delete(t),a=function(){var o=(e=i.transaction(wh,"readwrite")).objectStore(wh).delete(t);o.onsuccess=function(){return n(u.result.modelArtifactsInfo)},o.onerror=function(t){return r(u.error)}};o.onsuccess=a,o.onerror=function(t){return a(),i.close(),r(u.error)}},u.onerror=function(t){return i.close(),r(u.error)},a.oncomplete=function(){null==e?i.close():e.oncomplete=function(){return i.close()}}},o.onerror=function(t){return r(o.error)}}))]}))}))},t}();if(f().getBool("IS_BROWSER"))try{yh.registerManager(Ih.URL_SCHEME,new Sh)}catch(a){}var kh="/",Dh="tensorflowjs_models",Ah="info",Th="model_topology",Nh="weight_specs",Fh="weight_data",Mh="model_metadata";function 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Wh)}catch(a){}function zh(t){return new Promise((function(t){return setTimeout(t)})).then(t)}var Uh=function(){function t(e){if(!f().getBool("IS_BROWSER"))throw new Error("browserDownloads() cannot proceed because the current environment is not a browser.");e.startsWith(t.URL_SCHEME)&&(e=e.slice(t.URL_SCHEME.length)),null!=e&&0!==e.length||(e="model"),this.modelTopologyFileName=e+".json",this.weightDataFileName=e+".weights.bin"}return t.prototype.save=function(t){return u(this,void 0,void 0,(function(){var e,n,r,o,i,a;return c(this,(function(s){switch(s.label){case 0:if("undefined"==typeof document)throw new Error("Browser downloads are not supported in this environment since `document` is not present");if(e=window.URL.createObjectURL(new Blob([t.weightData],{type:"application/octet-stream"})),!(t.modelTopology instanceof ArrayBuffer))return[3,1];throw new Error("BrowserDownloads.save() does not support saving model topology in binary formats yet.");case 1:return n=[{paths:["./"+this.weightDataFileName],weights:t.weightSpecs}],r={modelTopology:t.modelTopology,format:t.format,generatedBy:t.generatedBy,convertedBy:t.convertedBy,weightsManifest:n},o=window.URL.createObjectURL(new Blob([JSON.stringify(r)],{type:"application/json"})),(i=null==this.jsonAnchor?document.createElement("a"):this.jsonAnchor).download=this.modelTopologyFileName,i.href=o,[4,zh((function(){return i.dispatchEvent(new MouseEvent("click"))}))];case 2:return s.sent(),null==t.weightData?[3,4]:((a=null==this.weightDataAnchor?document.createElement("a"):this.weightDataAnchor).download=this.weightDataFileName,a.href=e,[4,zh((function(){return a.dispatchEvent(new MouseEvent("click"))}))]);case 3:s.sent(),s.label=4;case 4:return[2,{modelArtifactsInfo:vh(t)}]}}))}))},t.URL_SCHEME="downloads://",t}(),Vh=function(){function t(t){if(null==t||t.length<1)throw new Error("When calling browserFiles, at least 1 file is required, but received "+t);this.files=t}return t.prototype.load=function(){return u(this,void 0,void 0,(function(){var t,e,n=this;return c(this,(function(r){return t=this.files[0],e=this.files.slice(1),[2,new Promise((function(r,o){var i=new FileReader;i.onload=function(i){var a=JSON.parse(i.target.result),s=a.modelTopology;if(null!=s){0===e.length&&r({modelTopology:s});var u=a.weightsManifest;if(null!=u){var c;try{c=n.checkManifestAndWeightFiles(u,e)}catch(t){return void o(t)}var l=[],h=[],f=[];u.forEach((function(t){t.paths.forEach((function(t){h.push(t),f.push(null)})),l.push.apply(l,t.weights)})),u.forEach((function(t){t.paths.forEach((function(t){var e=new FileReader;e.onload=function(e){var n=e.target.result,o=h.indexOf(t);f[o]=n,-1===f.indexOf(null)&&r({modelTopology:s,weightSpecs:l,weightData:ph(f),format:a.format,generatedBy:a.generatedBy,convertedBy:a.convertedBy,userDefinedMetadata:a.userDefinedMetadata})},e.onerror=function(e){return o("Failed to weights data from file of path 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wn(o).variable(!1)}))}),null==e.accumulatedUpdates[r]&&(e.accumulatedUpdates[r]={originalName:n+"/accum_var",variable:Ue((function(){return wn(o).variable(!1)}))});var i=Array.isArray(t)?t[r].tensor:t[n];if(null!=i){var a=e.accumulatedGrads[r].variable,s=e.accumulatedUpdates[r].variable;Ue((function(){var t=a.mul(e.rho).add(i.square().mul(1-e.rho)),n=s.add(e.epsilon).sqrt().div(a.add(e.epsilon).sqrt()).mul(i),r=s.mul(e.rho).add(n.square().mul(1-e.rho));a.assign(t),s.assign(r);var u=n.mul(-e.learningRate).add(o);o.assign(u)}))}})),this.incrementIterations()},e.prototype.dispose=function(){null!=this.accumulatedUpdates&&(Ve(this.accumulatedGrads.map((function(t){return t.variable}))),Ve(this.accumulatedUpdates.map((function(t){return t.variable}))))},e.prototype.getWeights=function(){return u(this,void 0,void 0,(function(){var t;return c(this,(function(e){switch(e.label){case 0:return t=this.accumulatedGrads.concat(this.accumulatedUpdates),[4,this.saveIterations()];case 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e=this;(Array.isArray(t)?t.map((function(t){return t.name})):Object.keys(t)).forEach((function(n,r){var o=Ot.registeredVariables[n];null==e.accumulatedGrads[r]&&(e.accumulatedGrads[r]={originalName:n+"/accumulator",variable:Ue((function(){return yn(o.shape,e.initialAccumulatorValue).variable(!1)}))});var i=Array.isArray(t)?t[r].tensor:t[n];if(null!=i){var a=e.accumulatedGrads[r].variable;Ue((function(){var t=a.add(i.square());a.assign(t);var n=i.div(t.add(Ot.backend.epsilon()).sqrt()).mul(-e.learningRate).add(o);o.assign(n)}))}})),this.incrementIterations()},e.prototype.dispose=function(){null!=this.accumulatedGrads&&Ve(this.accumulatedGrads.map((function(t){return t.variable})))},e.prototype.getWeights=function(){return u(this,void 0,void 0,(function(){return c(this,(function(t){switch(t.label){case 0:return[4,this.saveIterations()];case 1:return[2,[t.sent()].concat(this.accumulatedGrads.map((function(t){return{name:t.originalName,tensor:t.variable}})))]}}))}))},e.prototype.setWeights=function(t){return u(this,void 0,void 0,(function(){return c(this,(function(e){switch(e.label){case 0:return[4,this.extractIterations(t)];case 1:return t=e.sent(),this.accumulatedGrads=t.map((function(t){return{originalName:t.name,variable:t.tensor.variable(!1)}})),[2]}}))}))},e.prototype.getConfig=function(){return{learningRate:this.learningRate,initialAccumulatorValue:this.initialAccumulatorValue}},e.fromConfig=function(t,e){return new t(e.learningRate,e.initialAccumulatorValue)},e.className="Adagrad",e}(lf);af(ff);var pf=function(t){function e(e,n,r,o){void 0===o&&(o=null);var i=t.call(this)||this;return i.learningRate=e,i.beta1=n,i.beta2=r,i.epsilon=o,i.accumulatedFirstMoment=[],i.accumulatedSecondMoment=[],Ue((function(){i.accBeta1=hn(n).variable(),i.accBeta2=hn(r).variable()})),null==o&&(i.epsilon=Ot.backend.epsilon()),i}return s(e,t),e.prototype.applyGradients=function(t){var e=this,n=Array.isArray(t)?t.map((function(t){return t.name})):Object.keys(t);Ue((function(){var r=Du(1,e.accBeta1),o=Du(1,e.accBeta2);n.forEach((function(n,i){var a=Ot.registeredVariables[n];null==e.accumulatedFirstMoment[i]&&(e.accumulatedFirstMoment[i]={originalName:n+"/m",variable:Ue((function(){return wn(a).variable(!1)}))}),null==e.accumulatedSecondMoment[i]&&(e.accumulatedSecondMoment[i]={originalName:n+"/v",variable:Ue((function(){return wn(a).variable(!1)}))});var s=Array.isArray(t)?t[i].tensor:t[n];if(null!=s){var u=e.accumulatedFirstMoment[i].variable,c=e.accumulatedSecondMoment[i].variable,l=u.mul(e.beta1).add(s.mul(1-e.beta1)),h=c.mul(e.beta2).add(s.square().mul(1-e.beta2)),f=l.div(r),p=h.div(o);u.assign(l),c.assign(h);var d=f.div(p.sqrt().add(e.epsilon)).mul(-e.learningRate).add(a);a.assign(d)}})),e.accBeta1.assign(e.accBeta1.mul(e.beta1)),e.accBeta2.assign(e.accBeta2.mul(e.beta2))})),this.incrementIterations()},e.prototype.dispose=function(){this.accBeta1.dispose(),this.accBeta2.dispose(),null!=this.accumulatedFirstMoment&&Ve(this.accumulatedFirstMoment.map((function(t){return t.variable}))),null!=this.accumulatedSecondMoment&&Ve(this.accumulatedSecondMoment.map((function(t){return t.variable})))},e.prototype.getWeights=function(){return u(this,void 0,void 0,(function(){var t;return c(this,(function(e){switch(e.label){case 0:return t=this.accumulatedFirstMoment.concat(this.accumulatedSecondMoment),[4,this.saveIterations()];case 1:return[2,[e.sent()].concat(t.map((function(t){return{name:t.originalName,tensor:t.variable}})))]}}))}))},e.prototype.setWeights=function(t){return u(this,void 0,void 0,(function(){var e,n=this;return c(this,(function(r){switch(r.label){case 0:return[4,this.extractIterations(t)];case 1:return t=r.sent(),Ue((function(){n.accBeta1.assign(Ru(n.beta1,n.iterations_+1)),n.accBeta2.assign(Ru(n.beta2,n.iterations_+1))})),e=t.length/2,this.accumulatedFirstMoment=t.slice(0,e).map((function(t){return{originalName:t.name,variable:t.tensor.variable(!1)}})),this.accumulatedSecondMoment=t.slice(e,2*e).map((function(t){return{originalName:t.name,variable:t.tensor.variable(!1)}})),[2]}}))}))},e.prototype.getConfig=function(){return{learningRate:this.learningRate,beta1:this.beta1,beta2:this.beta2,epsilon:this.epsilon}},e.fromConfig=function(t,e){return new t(e.learningRate,e.beta1,e.beta2,e.epsilon)},e.className="Adam",e}(lf);af(pf);var df=function(t){function e(e,n,r,o,i){void 0===o&&(o=null),void 0===i&&(i=0);var a=t.call(this)||this;return a.learningRate=e,a.beta1=n,a.beta2=r,a.epsilon=o,a.decay=i,a.accumulatedFirstMoment=[],a.accumulatedWeightedInfNorm=[],Ue((function(){a.iteration=hn(0).variable(),a.accBeta1=hn(n).variable()})),null==o&&(a.epsilon=Ot.backend.epsilon()),a}return s(e,t),e.prototype.applyGradients=function(t){var e=this,n=Array.isArray(t)?t.map((function(t){return t.name})):Object.keys(t);Ue((function(){var r=Du(1,e.accBeta1),o=du(-e.learningRate,e.iteration.mul(e.decay).add(1));n.forEach((function(n,i){var a=Ot.registeredVariables[n];null==e.accumulatedFirstMoment[i]&&(e.accumulatedFirstMoment[i]={originalName:n+"/m",variable:wn(a).variable(!1)}),null==e.accumulatedWeightedInfNorm[i]&&(e.accumulatedWeightedInfNorm[i]={originalName:n+"/v",variable:wn(a).variable(!1)});var s=Array.isArray(t)?t[i].tensor:t[n];if(null!=s){var u=e.accumulatedFirstMoment[i].variable,c=e.accumulatedWeightedInfNorm[i].variable,l=u.mul(e.beta1).add(s.mul(1-e.beta1)),h=c.mul(e.beta2),f=s.abs(),p=h.maximum(f);u.assign(l),c.assign(p);var d=o.div(r).mul(l.div(p.add(e.epsilon))).add(a);a.assign(d)}})),e.iteration.assign(e.iteration.add(1)),e.accBeta1.assign(e.accBeta1.mul(e.beta1))})),this.incrementIterations()},e.prototype.dispose=function(){this.accBeta1.dispose(),this.iteration.dispose(),null!=this.accumulatedFirstMoment&&Ve(this.accumulatedFirstMoment.map((function(t){return t.variable}))),null!=this.accumulatedWeightedInfNorm&&Ve(this.accumulatedWeightedInfNorm.map((function(t){return t.variable})))},e.prototype.getWeights=function(){return u(this,void 0,void 0,(function(){return c(this,(function(t){throw new Error("getWeights() is not implemented for Adamax yet.")}))}))},e.prototype.setWeights=function(t){return u(this,void 0,void 0,(function(){return c(this,(function(t){throw new Error("setWeights() is not implemented for 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c(this,(function(t){switch(t.label){case 0:return[4,this.saveIterations()];case 1:return[2,[t.sent()]]}}))}))},e.prototype.setWeights=function(t){return u(this,void 0,void 0,(function(){return c(this,(function(e){switch(e.label){case 0:return[4,this.extractIterations(t)];case 1:if(0!==(t=e.sent()).length)throw new Error("SGD optimizer does not have settable weights.");return[2]}}))}))},e.prototype.getConfig=function(){return{learningRate:this.learningRate}},e.fromConfig=function(t,e){return new t(e.learningRate)},e.className="SGD",e}(lf);af(vf);var mf=function(t){function e(e,n,r){void 0===r&&(r=!1);var o=t.call(this,e)||this;return o.learningRate=e,o.momentum=n,o.useNesterov=r,o.accumulations=[],o.m=hn(o.momentum),o}return s(e,t),e.prototype.applyGradients=function(t){var e=this;(Array.isArray(t)?t.map((function(t){return t.name})):Object.keys(t)).forEach((function(n,r){var o=Ot.registeredVariables[n];null==e.accumulations[r]&&(e.accumulations[r]={originalName:n+"/momentum",variable:Ue((function(){return wn(o).variable(!1)}))});var i=e.accumulations[r].variable,a=Array.isArray(t)?t[r].tensor:t[n];null!=a&&Ue((function(){var t,n=e.m.mul(i).add(a);t=e.useNesterov?e.c.mul(a.add(n.mul(e.m))).add(o):e.c.mul(n).add(o),i.assign(n),o.assign(t)}))})),this.incrementIterations()},e.prototype.dispose=function(){this.m.dispose(),null!=this.accumulations&&Ve(this.accumulations.map((function(t){return t.variable})))},e.prototype.setMomentum=function(t){this.momentum=t},e.prototype.getWeights=function(){return u(this,void 0,void 0,(function(){return c(this,(function(t){switch(t.label){case 0:return[4,this.saveIterations()];case 1:return[2,[t.sent()].concat(this.accumulations.map((function(t){return{name:t.originalName,tensor:t.variable}})))]}}))}))},e.prototype.setWeights=function(t){return u(this,void 0,void 0,(function(){return c(this,(function(e){switch(e.label){case 0:return[4,this.extractIterations(t)];case 1:return t=e.sent(),this.accumulations=t.map((function(t){return{originalName:t.name,variable:t.tensor.variable(!1)}})),[2]}}))}))},e.prototype.getConfig=function(){return{learningRate:this.learningRate,momentum:this.momentum,useNesterov:this.useNesterov}},e.fromConfig=function(t,e){return new t(e.learningRate,e.momentum,e.useNesterov)},e.className="Momentum",e}(vf);af(mf);var gf=function(t){function e(e,n,r,o,i){void 0===n&&(n=.9),void 0===r&&(r=0),void 0===o&&(o=null),void 0===i&&(i=!1);var a=t.call(this)||this;if(a.learningRate=e,a.decay=n,a.momentum=r,a.epsilon=o,a.accumulatedMeanSquares=[],a.accumulatedMoments=[],a.accumulatedMeanGrads=[],a.centered=i,null==o&&(a.epsilon=Ot.backend.epsilon()),null==e)throw new Error("learningRate for RMSPropOptimizer must be defined.");return a}return s(e,t),e.prototype.applyGradients=function(t){var e=this;(Array.isArray(t)?t.map((function(t){return t.name})):Object.keys(t)).forEach((function(n,r){var o=Ot.registeredVariables[n];null==e.accumulatedMeanSquares[r]&&(e.accumulatedMeanSquares[r]={originalName:n+"/rms",variable:Ue((function(){return wn(o).variable(!1)}))}),null==e.accumulatedMoments[r]&&(e.accumulatedMoments[r]={originalName:n+"/momentum",variable:Ue((function(){return wn(o).variable(!1)}))}),null==e.accumulatedMeanGrads[r]&&e.centered&&(e.accumulatedMeanGrads[r]={originalName:n+"/mg",variable:Ue((function(){return wn(o).variable(!1)}))});var i=Array.isArray(t)?t[r].tensor:t[n];if(null!=i){var a=e.accumulatedMeanSquares[r].variable,s=e.accumulatedMoments[r].variable;Ue((function(){var t=a.mul(e.decay).add(i.square().mul(1-e.decay));if(e.centered){var n=e.accumulatedMeanGrads[r].variable,u=n.mul(e.decay).add(i.mul(1-e.decay)),c=s.mul(e.momentum).add(i.mul(e.learningRate).div(t.sub(u.square().add(e.epsilon)).sqrt()));a.assign(t),n.assign(u),s.assign(c);var l=o.sub(c);o.assign(l)}else{var h=a.mul(e.decay).add(i.square().mul(1-e.decay));c=s.mul(e.momentum).add(i.mul(e.learningRate).div(h.add(e.epsilon).sqrt())),a.assign(h),s.assign(c),l=o.sub(c),o.assign(l)}}))}})),this.incrementIterations()},e.prototype.dispose=function(){null!=this.accumulatedMeanSquares&&Ve(this.accumulatedMeanSquares.map((function(t){return t.variable}))),null!=this.accumulatedMeanGrads&&this.centered&&Ve(this.accumulatedMeanGrads.map((function(t){return t.variable}))),null!=this.accumulatedMoments&&Ve(this.accumulatedMoments.map((function(t){return t.variable})))},e.prototype.getWeights=function(){return u(this,void 0,void 0,(function(){var t;return c(this,(function(e){switch(e.label){case 0:return t=this.accumulatedMeanSquares.concat(this.accumulatedMoments),this.centered&&t.push.apply(t,this.accumulatedMeanGrads),[4,this.saveIterations()];case 1:return[2,[e.sent()].concat(t.map((function(t){return{name:t.originalName,tensor:t.variable}})))]}}))}))},e.prototype.setWeights=function(t){return 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t=window.fetch||function(){throw new Error("fetch - missing fetch implementation for browser environment")};return{Canvas:HTMLCanvasElement,CanvasRenderingContext2D:CanvasRenderingContext2D,Image:HTMLImageElement,ImageData:ImageData,Video:HTMLVideoElement,createCanvasElement:function(){return document.createElement("canvas")},createImageElement:function(){return document.createElement("img")},fetch:t,readFile:function(){throw new Error("readFile - filesystem not available for browser environment")}}}function np(t){var e="";if(!t)try{t=n(12155)}catch(t){e=t.toString()}return{readFile:t?function(e){return new Promise((function(n,r){t.readFile(e,(function(t,e){return t?r(t):n(e)}))}))}:function(){throw new Error("readFile - failed to require fs in nodejs environment with error: "+e)}}}function rp(){var t=n.g.Canvas||n.g.HTMLCanvasElement,e=n.g.Image||n.g.HTMLImageElement,r=n.g.fetch||function(){throw new Error("fetch - missing fetch implementation for nodejs environment")},o=np();return Cf({Canvas:t||function(){},CanvasRenderingContext2D:n.g.CanvasRenderingContext2D||function(){},Image:e||function(){},ImageData:n.g.ImageData||function(){},Video:n.g.HTMLVideoElement||function(){},createCanvasElement:function(){if(t)return new t;throw new Error("createCanvasElement - missing Canvas implementation for nodejs environment")},createImageElement:function(){if(e)return new e;throw new Error("createImageElement - missing Image implementation for nodejs environment")},fetch:r},o)}function op(){return"object"==typeof window&&"undefined"!=typeof document&&"undefined"!=typeof HTMLImageElement&&"undefined"!=typeof HTMLCanvasElement&&"undefined"!=typeof HTMLVideoElement&&"undefined"!=typeof ImageData&&"undefined"!=typeof CanvasRenderingContext2D}var ip,ap=n(34155);function sp(){return"object"==typeof n.g&&void 0!==ap&&!!ap.version}function up(t){ip=t}function cp(){op()&&up(ep()),sp()&&up(rp())}var lp,hp={getEnv:function(){if(!ip)throw new Error("getEnv - environment is not defined, check isNodejs() and isBrowser()");return ip},setEnv:up,initialize:cp,createBrowserEnv:ep,createFileSystem:np,createNodejsEnv:rp,monkeyPatch:function(t){if(ip||cp(),!ip)throw new Error("monkeyPatch - environment is not defined, check isNodejs() and isBrowser()");var e=t.Canvas,n=void 0===e?ip.Canvas:e,r=t.Image,o=void 0===r?ip.Image:r;ip.Canvas=n,ip.Image=o,ip.createCanvasElement=t.createCanvasElement||function(){return new n},ip.createImageElement=t.createImageElement||function(){return new o},ip.ImageData=t.ImageData||ip.ImageData,ip.Video=t.Video||ip.Video,ip.fetch=t.fetch||ip.fetch,ip.readFile=t.readFile||ip.readFile},isBrowser:op,isNodejs:sp};function fp(t){return hp.isNodejs()||"string"!=typeof t?t:document.getElementById(t)}function pp(t){var e=hp.getEnv(),n=e.Canvas;if(t instanceof e.CanvasRenderingContext2D)return t;var r=fp(t);if(!(r instanceof n))throw new Error("resolveContext2d - expected canvas to be of instance of Canvas");var o=r.getContext("2d");if(!o)throw new Error("resolveContext2d - canvas 2d context is null");return o}cp(),function(t){t.TOP_LEFT="TOP_LEFT",t.TOP_RIGHT="TOP_RIGHT",t.BOTTOM_LEFT="BOTTOM_LEFT",t.BOTTOM_RIGHT="BOTTOM_RIGHT"}(lp||(lp={}));var dp=function(t){void 0===t&&(t={});var e=t.anchorPosition,n=t.backgroundColor,r=t.fontColor,o=t.fontSize,i=t.fontStyle,a=t.padding;this.anchorPosition=e||lp.TOP_LEFT,this.backgroundColor=n||"rgba(0, 0, 0, 0.5)",this.fontColor=r||"rgba(255, 255, 255, 1)",this.fontSize=o||14,this.fontStyle=i||"Georgia",this.padding=a||4},vp=function(){function t(e,n,r){void 0===r&&(r={}),this.text="string"==typeof e?[e]:e instanceof t?e.text:e,this.anchor=n,this.options=new dp(r)}return t.prototype.measureWidth=function(t){var e=this.options.padding;return this.text.map((function(e){return t.measureText(e).width})).reduce((function(t,e){return t<e?e:t}),0)+2*e},t.prototype.measureHeight=function(){var t=this.options,e=t.fontSize,n=t.padding;return this.text.length*e+2*n},t.prototype.getUpperLeft=function(t,e){var n=this.options.anchorPosition,r=n===lp.BOTTOM_RIGHT||n===lp.TOP_RIGHT,o=n===lp.BOTTOM_LEFT||n===lp.BOTTOM_RIGHT,i=this.measureWidth(t),a=this.measureHeight(),s=r?this.anchor.x-i:this.anchor.x,u=o?this.anchor.y-a:this.anchor.y;if(e){var c=e.width,l=e.height;return{x:Math.max(Math.min(s,c-i),0),y:Math.max(Math.min(u,l-a),0)}}return{x:s,y:u}},t.prototype.draw=function(t){var e=fp(t),n=pp(e),r=this.options,o=r.backgroundColor,i=r.fontColor,a=r.fontSize,s=r.fontStyle,u=r.padding;n.font=a+"px "+s;var c=this.measureWidth(n),l=this.measureHeight();n.fillStyle=o;var h=this.getUpperLeft(n,e);n.fillRect(h.x,h.y,c,l),n.fillStyle=i,this.text.forEach((function(t,e){var r=u+h.x,o=u+h.y+(e+1)*a;n.fillText(t,r,o)}))},t}(),mp=function(t){void 0===t&&(t={});var e=t.boxColor,n=t.lineWidth,r=t.label,o=t.drawLabelOptions;this.boxColor=e||"rgba(0, 0, 255, 1)",this.lineWidth=n||2,this.label=r;var i={anchorPosition:lp.BOTTOM_LEFT,backgroundColor:this.boxColor};this.drawLabelOptions=new dp(Object.assign({},i,o))},gp=function(){function t(t,e){void 0===e&&(e={}),this.box=new Lf(t),this.options=new mp(e)}return t.prototype.draw=function(t){var e=pp(t),n=this.options,r=n.boxColor,o=n.lineWidth,i=this.box,a=i.x,s=i.y,u=i.width,c=i.height;e.strokeStyle=r,e.lineWidth=o,e.strokeRect(a,s,u,c);var l=this.options.label;l&&new vp([l],{x:a-o/2,y:s},this.options.drawLabelOptions).draw(t)},t}();function yp(t,e){(Array.isArray(e)?e:[e]).forEach((function(e){var n=e instanceof Uf?e.score:Zf(e)?e.detection.score:void 0,r=e instanceof Uf?e.box:Zf(e)?e.detection.box:new Lf(e),o=n?""+Tf(n):void 0;new gp(r,{label:o}).draw(t)}))}function xp(t){var e=hp.getEnv(),n=e.Image,r=e.Video;return t instanceof n&&t.complete||t instanceof r&&t.readyState>=3}function bp(t){var e=hp.getEnv(),n=e.Image,r=e.Video;return t instanceof n?new Rf(t.naturalWidth,t.naturalHeight):t instanceof r?new Rf(t.videoWidth,t.videoHeight):new Rf(t.width,t.height)}function wp(t){var e=t.width,n=t.height,r=(0,hp.getEnv().createCanvasElement)();return r.width=e,r.height=n,r}function Cp(t,e){var n=hp.getEnv().ImageData;if(!(t instanceof n||xp(t)))throw new Error("createCanvasFromMedia - media has not finished loading yet");var r=e||bp(t),o=r.width,i=r.height,a=wp({width:o,height:i});return t instanceof n?pp(a).putImageData(t,0,0):pp(a).drawImage(t,0,0,o,i),a}function Ep(t,e){return Ef(this,void 0,void 0,(function(){var n,r,o,i,a,s;return _f(this,(function(u){switch(u.label){case 0:return n=e||hp.getEnv().createCanvasElement(),r=t.shape.slice(Df(t)?1:0),o=r[0],i=r[1],a=r[2],s=Ue((function(){return t.as3D(o,i,a).toInt()})),[4,nf.toPixels(s,n)];case 1:return u.sent(),s.dispose(),[2,n]}}))}))}function _p(t){var e=hp.getEnv(),n=e.Image,r=e.Canvas,o=e.Video;return t instanceof n||t instanceof r||t instanceof o}var Ip=function(){function t(t,e){var n=this;if(void 0===e&&(e=!1),this._imageTensors=[],this._canvases=[],this._treatAsBatchInput=!1,this._inputDimensions=[],!Array.isArray(t))throw new Error("NetInput.constructor - expected inputs to be an Array of TResolvedNetInput or to be instanceof tf.Tensor4D, instead have "+t);this._treatAsBatchInput=e,this._batchSize=t.length,t.forEach((function(t,e){if(kf(t))return n._imageTensors[e]=t,void(n._inputDimensions[e]=t.shape);if(Df(t)){var r=t.shape[0];if(1!==r)throw new Error("NetInput - tf.Tensor4D with batchSize "+r+" passed, but not supported in input array");return n._imageTensors[e]=t,void(n._inputDimensions[e]=t.shape.slice(1))}var o=t instanceof hp.getEnv().Canvas?t:Cp(t);n._canvases[e]=o,n._inputDimensions[e]=[o.height,o.width,3]}))}return Object.defineProperty(t.prototype,"imageTensors",{get:function(){return this._imageTensors},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"canvases",{get:function(){return this._canvases},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"isBatchInput",{get:function(){return this.batchSize>1||this._treatAsBatchInput},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"batchSize",{get:function(){return this._batchSize},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"inputDimensions",{get:function(){return this._inputDimensions},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"inputSize",{get:function(){return this._inputSize},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"reshapedInputDimensions",{get:function(){var t=this;return Mf(this.batchSize,0,1).map((function(e,n){return t.getReshapedInputDimensions(n)}))},enumerable:!0,configurable:!0}),t.prototype.getInput=function(t){return this.canvases[t]||this.imageTensors[t]},t.prototype.getInputDimensions=function(t){return this._inputDimensions[t]},t.prototype.getInputHeight=function(t){return this._inputDimensions[t][0]},t.prototype.getInputWidth=function(t){return this._inputDimensions[t][1]},t.prototype.getReshapedInputDimensions=function(t){if("number"!=typeof this.inputSize)throw new Error("getReshapedInputDimensions - inputSize not set, toBatchTensor has not been called yet");return function(t,e){var n=t.width,r=t.height,o=e/Math.max(r,n);return new Rf(Math.round(n*o),Math.round(r*o))}({width:this.getInputWidth(t),height:this.getInputHeight(t)},this.inputSize)},t.prototype.toBatchTensor=function(t,e){var n=this;return void 0===e&&(e=!0),this._inputSize=t,Ue((function(){var r=Mf(n.batchSize,0,1).map((function(r){var o=n.getInput(r);if(o instanceof xt){var i=Df(o)?o:o.expandDims();return i=function(t,e){return void 0===e&&(e=!1),Ue((function(){var n=t.shape.slice(1),r=n[0],o=n[1];if(r===o)return t;var i=Math.abs(r-o),a=Math.round(i*(e?.5:1)),s=r>o?2:1,u=function(e){var n=t.shape.slice();return n[s]=e,yn(n,0)},c=u(a),l=i-c.shape[s],h=[e&&l?u(l):null,t,c].filter((function(t){return!!t})).map((function(t){return t.toFloat()}));return Cn(h,s)}))}(i,e),i.shape[1]===t&&i.shape[2]===t||(i=Bl.resizeBilinear(i,[t,t])),i.as3D(t,t,3)}if(o instanceof hp.getEnv().Canvas)return nf.fromPixels(function(t,e,n){void 0===n&&(n=!1);var r=hp.getEnv(),o=r.Image,i=r.Canvas;if(!(t instanceof o||t instanceof i))throw new Error("imageToSquare - expected arg0 to be HTMLImageElement | HTMLCanvasElement");var a=bp(t),s=e/Math.max(a.height,a.width),u=s*a.width,c=s*a.height,l=wp({width:e,height:e}),h=t instanceof i?t:Cp(t),f=Math.abs(u-c)/2,p=n&&u<c?f:0,d=n&&c<u?f:0;return pp(l).drawImage(h,p,d,u,c),l}(o,t,e));throw new Error("toBatchTensor - at batchIdx "+r+", expected input to be instanceof tf.Tensor or instanceof HTMLCanvasElement, instead have "+o)})),o=cr(r.map((function(t){return t.toFloat()}))).as4D(n.batchSize,t,t,3);return o}))},t}();function Rp(t){return Ef(this,void 0,void 0,(function(){var e,n,r;return _f(this,(function(o){switch(o.label){case 0:if(t instanceof Ip)return[2,t];if(!(e=Array.isArray(t)?t:[t]).length)throw new Error("toNetInput - empty array passed as input");return n=function(e){return Array.isArray(t)?" at input index "+e+":":""},(r=e.map(fp)).forEach((function(t,r){if(!_p(t)&&!kf(t)&&!Df(t)){if("string"==typeof e[r])throw new Error("toNetInput -"+n(r)+" string passed, but could not resolve HTMLElement for element id "+e[r]);throw new Error("toNetInput -"+n(r)+" expected media to be of type HTMLImageElement | HTMLVideoElement | HTMLCanvasElement | tf.Tensor3D, or to be an element id")}if(Df(t)){var o=t.shape[0];if(1!==o)throw new Error("toNetInput -"+n(r)+" tf.Tensor4D with batchSize "+o+" passed, but not supported in input array")}})),[4,Promise.all(r.map((function(t){return _p(t)&&(e=t,new Promise((function(t,n){if(e instanceof hp.getEnv().Canvas||xp(e))return t();function r(e){e.currentTarget&&(e.currentTarget.removeEventListener("load",r),e.currentTarget.removeEventListener("error",o),t(e))}function o(t){t.currentTarget&&(t.currentTarget.removeEventListener("load",r),t.currentTarget.removeEventListener("error",o),n(t))}e.addEventListener("load",r),e.addEventListener("error",o)})));var e})))];case 1:return o.sent(),[2,new Ip(r,Array.isArray(t))]}}))}))}function Sp(t,e){return Ef(this,void 0,void 0,(function(){var n,r,o,i,a,s;return _f(this,(function(u){switch(u.label){case 0:return n=hp.getEnv().Canvas,r=t,t instanceof n?[3,5]:[4,Rp(t)];case 1:if((o=u.sent()).batchSize>1)throw new Error("extractFaces - batchSize > 1 not supported");return(i=o.getInput(0))instanceof n?(a=i,[3,4]):[3,2];case 2:return[4,Ep(i)];case 3:a=u.sent(),u.label=4;case 4:r=a,u.label=5;case 5:return s=pp(r),[2,e.map((function(t){return t instanceof Uf?t.forSize(r.width,r.height).box.floor():t})).map((function(t){return t.clipAtImageBorders(r.width,r.height)})).map((function(t){var e=t.x,n=t.y,r=t.width,o=t.height,i=wp({width:r,height:o});return pp(i).putImageData(s.getImageData(e,n,r,o),0,0),i}))]}}))}))}function kp(t,e){return Ef(this,void 0,void 0,(function(){return _f(this,(function(n){if(!kf(t)&&!Df(t))throw new Error("extractFaceTensors - expected image tensor to be 3D or 4D");if(Df(t)&&t.shape[0]>1)throw new Error("extractFaceTensors - batchSize > 1 not supported");return[2,Ue((function(){var n=t.shape.slice(Df(t)?1:0),r=n[0],o=n[1],i=n[2],a=e.map((function(t){return t instanceof Uf?t.forSize(o,r).box:t})).map((function(t){return t.clipAtImageBorders(o,r)})).map((function(e){var n=e.x,a=e.y,s=e.width,u=e.height;return Ic(t.as3D(r,o,i),[a,n,0],[u,s,i])}));return a}))]}))}))}function Dp(t,e){return Ef(this,void 0,void 0,(function(){var n;return _f(this,(function(r){switch(r.label){case 0:return[4,(0,hp.getEnv().fetch)(t,e)];case 1:if(!((n=r.sent()).status<400))throw new Error("failed to fetch: ("+n.status+") "+n.statusText+", from url: "+n.url);return[2,n]}}))}))}function Ap(t){return Ef(this,void 0,void 0,(function(){return _f(this,(function(e){switch(e.label){case 0:return[4,Dp(t)];case 1:return[2,e.sent().json()]}}))}))}function Tp(t,e){var n=e+"-weights_manifest.json";if(!t)return{modelBaseUri:"",manifestUri:n};if("/"===t)return{modelBaseUri:"/",manifestUri:"/"+n};var r=t.startsWith("http://")?"http://":t.startsWith("https://")?"https://":"",o=(t=t.replace(r,"")).split("/").filter((function(t){return t})),i=t.endsWith(".json")?o[o.length-1]:n,a=r+(t.endsWith(".json")?o.slice(0,o.length-1):o).join("/");return{modelBaseUri:a=t.startsWith("/")?"/"+a:a,manifestUri:"/"===a?"/"+i:a+"/"+i}}function Np(t,e){return Ef(this,void 0,void 0,(function(){var n,r,o,i;return _f(this,(function(a){switch(a.label){case 0:return n=Tp(t,e),r=n.manifestUri,o=n.modelBaseUri,[4,Ap(r)];case 1:return i=a.sent(),[2,Zh.loadWeights(i,o)]}}))}))}var Fp=function(){function t(t){this._name=t,this._params=void 0,this._paramMappings=[]}return Object.defineProperty(t.prototype,"params",{get:function(){return this._params},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"paramMappings",{get:function(){return this._paramMappings},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"isLoaded",{get:function(){return!!this.params},enumerable:!0,configurable:!0}),t.prototype.getParamFromPath=function(t){var e=this.traversePropertyPath(t);return e.obj[e.objProp]},t.prototype.reassignParamFromPath=function(t,e){var n=this.traversePropertyPath(t),r=n.obj,o=n.objProp;r[o].dispose(),r[o]=e},t.prototype.getParamList=function(){var t=this;return this._paramMappings.map((function(e){var n=e.paramPath;return{path:n,tensor:t.getParamFromPath(n)}}))},t.prototype.getTrainableParams=function(){return this.getParamList().filter((function(t){return t.tensor instanceof It}))},t.prototype.getFrozenParams=function(){return this.getParamList().filter((function(t){return!(t.tensor instanceof It)}))},t.prototype.variable=function(){var t=this;this.getFrozenParams().forEach((function(e){var n=e.path,r=e.tensor;t.reassignParamFromPath(n,r.variable())}))},t.prototype.freeze=function(){var t=this;this.getTrainableParams().forEach((function(e){var n=e.path,r=e.tensor,o=cn(r.dataSync());r.dispose(),t.reassignParamFromPath(n,o)}))},t.prototype.dispose=function(t){void 0===t&&(t=!0),this.getParamList().forEach((function(e){if(t&&e.tensor.isDisposed)throw new Error("param tensor has already been disposed for path "+e.path);e.tensor.dispose()})),this._params=void 0},t.prototype.serializeParams=function(){return new Float32Array(this.getParamList().map((function(t){var e=t.tensor;return Array.from(e.dataSync())})).reduce((function(t,e){return t.concat(e)})))},t.prototype.load=function(t){return Ef(this,void 0,void 0,(function(){return _f(this,(function(e){switch(e.label){case 0:return t instanceof Float32Array?(this.extractWeights(t),[2]):[4,this.loadFromUri(t)];case 1:return e.sent(),[2]}}))}))},t.prototype.loadFromUri=function(t){return Ef(this,void 0,void 0,(function(){var e;return _f(this,(function(n){switch(n.label){case 0:if(t&&"string"!=typeof t)throw new Error(this._name+".loadFromUri - expected model uri");return[4,Np(t,this.getDefaultModelName())];case 1:return e=n.sent(),this.loadFromWeightMap(e),[2]}}))}))},t.prototype.loadFromDisk=function(t){return Ef(this,void 0,void 0,(function(){var e,n,r,o,i,a,s,u,c,l;return _f(this,(function(h){switch(h.label){case 0:if(t&&"string"!=typeof t)throw new Error(this._name+".loadFromDisk - expected model file path");return e=hp.getEnv().readFile,n=Tp(t,this.getDefaultModelName()),r=n.manifestUri,o=n.modelBaseUri,i=function(t){return Promise.all(t.map((function(t){return e(t).then((function(t){return t.buffer}))})))},a=Zh.weightsLoaderFactory(i),c=(u=JSON).parse,[4,e(r)];case 1:return s=c.apply(u,[h.sent().toString()]),[4,a(s,o)];case 2:return l=h.sent(),this.loadFromWeightMap(l),[2]}}))}))},t.prototype.loadFromWeightMap=function(t){var e=this.extractParamsFromWeigthMap(t),n=e.paramMappings,r=e.params;this._paramMappings=n,this._params=r},t.prototype.extractWeights=function(t){var e=this.extractParams(t),n=e.paramMappings,r=e.params;this._paramMappings=n,this._params=r},t.prototype.traversePropertyPath=function(t){if(!this.params)throw new Error("traversePropertyPath - model has no loaded params");var e=t.split("/").reduce((function(e,n){if(!e.nextObj.hasOwnProperty(n))throw new Error("traversePropertyPath - object does not have property "+n+", for path "+t);return{obj:e.nextObj,objProp:n,nextObj:e.nextObj[n]}}),{nextObj:this.params}),n=e.obj,r=e.objProp;if(!(n&&r&&n[r]instanceof xt))throw new Error("traversePropertyPath - parameter is not a tensor, for path "+t);return{obj:n,objProp:r}},t}();function Mp(t,e,n){return Ue((function(){var r=oc(t,e.depthwise_filter,e.pointwise_filter,n,"same");return r=lu(r,e.bias)}))}function Op(t,e,n){return void 0===n&&(n=!1),Ue((function(){var r=Vc(n?lu(Ju(t,e.conv0.filters,[2,2],"same"),e.conv0.bias):Mp(t,e.conv0,[2,2])),o=Mp(r,e.conv1,[1,1]),i=Mp(Vc(lu(r,o)),e.conv2,[1,1]);return Vc(lu(r,lu(o,i)))}))}function Pp(t,e,n,r){return void 0===n&&(n=!1),void 0===r&&(r=!0),Ue((function(){var o=Vc(n?lu(Ju(t,e.conv0.filters,r?[2,2]:[1,1],"same"),e.conv0.bias):Mp(t,e.conv0,r?[2,2]:[1,1])),i=Mp(o,e.conv1,[1,1]),a=Mp(Vc(lu(o,i)),e.conv2,[1,1]),s=Mp(Vc(lu(o,lu(i,a))),e.conv3,[1,1]);return Vc(lu(o,lu(i,lu(a,s))))}))}function Bp(t,e,n,r){return void 0===n&&(n="same"),void 0===r&&(r=!1),Ue((function(){var o=lu(Ju(t,e.filters,[1,1],n),e.bias);return r?Vc(o):o}))}function Lp(t,e){Object.keys(t).forEach((function(n){e.some((function(t){return t.originalPath===n}))||t[n].dispose()}))}function Wp(t,e){return function(n,r,o,i){var a=vn(t(n*r*o*o),[o,o,n,r]),s=fn(t(r));return e.push({paramPath:i+"/filters"},{paramPath:i+"/bias"}),{filters:a,bias:s}}}function zp(t,e){return function(n,r,o){var i=pn(t(n*r),[n,r]),a=fn(t(r));return e.push({paramPath:o+"/weights"},{paramPath:o+"/bias"}),{weights:i,bias:a}}}var Up=function(t,e,n){this.depthwise_filter=t,this.pointwise_filter=e,this.bias=n};function Vp(t,e){return function(n,r,o){var i=vn(t(9*n),[3,3,n,1]),a=vn(t(n*r),[1,1,n,r]),s=fn(t(r));return e.push({paramPath:o+"/depthwise_filter"},{paramPath:o+"/pointwise_filter"},{paramPath:o+"/bias"}),new Up(i,a,s)}}function Gp(t){return function(e){var n=t(e+"/depthwise_filter",4),r=t(e+"/pointwise_filter",4),o=t(e+"/bias",1);return new Up(n,r,o)}}function Hp(t,e){return function(n,r,o){var i=t[n];if(!Sf(i,r))throw new Error("expected weightMap["+n+"] to be a Tensor"+r+"D, instead have "+i);return e.push({originalPath:n,paramPath:o||n}),i}}function jp(t){var e=t;return{extractWeights:function(t){var n=e.slice(0,t);return e=e.slice(t),n},getRemainingWeights:function(){return e}}}function qp(t,e){var n=Wp(t,e),r=Vp(t,e);function o(t,e,o,i){return void 0===i&&(i=!1),{conv0:i?n(t,e,3,o+"/conv0"):r(t,e,o+"/conv0"),conv1:r(e,e,o+"/conv1"),conv2:r(e,e,o+"/conv2")}}return{extractDenseBlock3Params:o,extractDenseBlock4Params:function(t,e,n,i){void 0===i&&(i=!1);var a=o(t,e,n,i);return{conv0:a.conv0,conv1:a.conv1,conv2:a.conv2,conv3:r(e,e,n+"/conv3")}}}}function Kp(t){return function(e){return{filters:t(e+"/filters",4),bias:t(e+"/bias",1)}}}function Xp(t,e){var n=Hp(t,e),r=Kp(n),o=Gp(n);return{extractDenseBlock3Params:function(t,e){return void 0===e&&(e=!1),{conv0:e?r(t+"/conv0"):o(t+"/conv0"),conv1:o(t+"/conv1"),conv2:o(t+"/conv2")}},extractDenseBlock4Params:function(t,e){return void 0===e&&(e=!1),{conv0:e?r(t+"/conv0"):o(t+"/conv0"),conv1:o(t+"/conv1"),conv2:o(t+"/conv2"),conv3:o(t+"/conv3")}}}}var $p=function(t){function e(){return t.call(this,"FaceFeatureExtractor")||this}return wf(e,t),e.prototype.forwardInput=function(t){var e=this.params;if(!e)throw new Error("FaceFeatureExtractor - load model before inference");return Ue((function(){var n=Pp(Hf(t.toBatchTensor(112,!0),[122.782,117.001,104.298]).div(hn(255)),e.dense0,!0);return n=Pp(n,e.dense1),n=Pp(n,e.dense2),n=Pp(n,e.dense3),n=yc(n,[7,7],[2,2],"valid")}))},e.prototype.forward=function(t){return Ef(this,void 0,void 0,(function(){var e;return _f(this,(function(n){switch(n.label){case 0:return e=this.forwardInput,[4,Rp(t)];case 1:return[2,e.apply(this,[n.sent()])]}}))}))},e.prototype.getDefaultModelName=function(){return"face_feature_extractor_model"},e.prototype.extractParamsFromWeigthMap=function(t){return function(t){var e=[],n=Xp(t,e).extractDenseBlock4Params,r={dense0:n("dense0",!0),dense1:n("dense1"),dense2:n("dense2"),dense3:n("dense3")};return Lp(t,e),{params:r,paramMappings:e}}(t)},e.prototype.extractParams=function(t){return function(t){var e=[],n=jp(t),r=n.extractWeights,o=n.getRemainingWeights,i=qp(r,e).extractDenseBlock4Params,a=i(3,32,"dense0",!0),s=i(32,64,"dense1"),u=i(64,128,"dense2"),c=i(128,256,"dense3");if(0!==o().length)throw new Error("weights remaing after extract: "+o().length);return{paramMappings:e,params:{dense0:a,dense1:s,dense2:u,dense3:c}}}(t)},e}(Fp);function Yp(t,e){return Ue((function(){return lu(sc(t,e.weights),e.bias)}))}function Jp(t){var e={},n={};return Object.keys(t).forEach((function(r){(r.startsWith("fc")?n:e)[r]=t[r]})),{featureExtractorMap:e,classifierMap:n}}var Qp=function(t){function e(e,n){var r=t.call(this,e)||this;return r._faceFeatureExtractor=n,r}return wf(e,t),Object.defineProperty(e.prototype,"faceFeatureExtractor",{get:function(){return this._faceFeatureExtractor},enumerable:!0,configurable:!0}),e.prototype.runNet=function(t){var e=this,n=this.params;if(!n)throw new Error(this._name+" - load model before inference");return Ue((function(){var r=t instanceof Ip?e.faceFeatureExtractor.forwardInput(t):t;return Yp(r.as2D(r.shape[0],-1),n.fc)}))},e.prototype.dispose=function(e){void 0===e&&(e=!0),this.faceFeatureExtractor.dispose(e),t.prototype.dispose.call(this,e)},e.prototype.loadClassifierParams=function(t){var e=this.extractClassifierParams(t),n=e.params,r=e.paramMappings;this._params=n,this._paramMappings=r},e.prototype.extractClassifierParams=function(t){return function(t,e,n){var r=[],o=jp(t),i=o.extractWeights,a=o.getRemainingWeights,s=zp(i,r)(e,n,"fc");if(0!==a().length)throw new Error("weights remaing after extract: "+a().length);return{paramMappings:r,params:{fc:s}}}(t,this.getClassifierChannelsIn(),this.getClassifierChannelsOut())},e.prototype.extractParamsFromWeigthMap=function(t){var e=Jp(t),n=e.featureExtractorMap,r=e.classifierMap;return this.faceFeatureExtractor.loadFromWeightMap(n),function(t){var e,n=[],r=Hp(t,n),o={fc:(e="fc",{weights:r(e+"/weights",2),bias:r(e+"/bias",1)})};return Lp(t,n),{params:o,paramMappings:n}}(r)},e.prototype.extractParams=function(t){var e=this.getClassifierChannelsIn(),n=this.getClassifierChannelsOut(),r=n*e+n,o=t.slice(0,t.length-r),i=t.slice(t.length-r);return this.faceFeatureExtractor.extractWeights(o),this.extractClassifierParams(i)},e}(Fp),Zp=["neutral","happy","sad","angry","fearful","disgusted","surprised"],td=function(){function t(t){var e=this;if(7!==t.length)throw new Error("FaceExpressions.constructor - expected probabilities.length to be 7, have: "+t.length);Zp.forEach((function(n,r){e[n]=t[r]}))}return t.prototype.asSortedArray=function(){var t=this;return Zp.map((function(e){return{expression:e,probability:t[e]}})).sort((function(t,e){return e.probability-t.probability}))},t}(),ed=function(t){function e(e){return void 0===e&&(e=new $p),t.call(this,"FaceExpressionNet",e)||this}return wf(e,t),e.prototype.forwardInput=function(t){var e=this;return Ue((function(){return Tr(e.runNet(t))}))},e.prototype.forward=function(t){return Ef(this,void 0,void 0,(function(){var e;return _f(this,(function(n){switch(n.label){case 0:return e=this.forwardInput,[4,Rp(t)];case 1:return[2,e.apply(this,[n.sent()])]}}))}))},e.prototype.predictExpressions=function(t){return Ef(this,void 0,void 0,(function(){var e,n,r,o,i=this;return _f(this,(function(a){switch(a.label){case 0:return[4,Rp(t)];case 1:return e=a.sent(),[4,this.forwardInput(e)];case 2:return n=a.sent(),[4,Promise.all(fr(n).map((function(t){return Ef(i,void 0,void 0,(function(){var e;return _f(this,(function(n){switch(n.label){case 0:return[4,t.data()];case 1:return e=n.sent(),t.dispose(),[2,e]}}))}))})))];case 3:return r=a.sent(),n.dispose(),o=r.map((function(t){return new td(t)})),[2,e.isBatchInput?o:o[0]]}}))}))},e.prototype.getDefaultModelName=function(){return"face_expression_model"},e.prototype.getClassifierChannelsIn=function(){return 256},e.prototype.getClassifierChannelsOut=function(){return 7},e}(Qp);function nd(t,e){var n={expressions:e};return Object.assign({},t,n)}function rd(t,e,n,r){void 0===n&&(n=.1),(Array.isArray(e)?e:[e]).forEach((function(e){var o=e instanceof td?e:e.expressions instanceof td?e.expressions:void 0;if(!o)throw new Error("drawFaceExpressions - expected faceExpressions to be FaceExpressions | WithFaceExpressions<{}> or array thereof");var i=o.asSortedArray().filter((function(t){return t.probability>n})),a=Zf(e)?e.detection.box.bottomLeft:r||new Bf(0,0),s=new vp(i.map((function(t){return t.expression+" ("+Tf(t.probability)+")"})),a);s.draw(t)}))}function od(t){return Zf(t)&&t.landmarks instanceof Kf&&t.unshiftedLandmarks instanceof Kf&&t.alignedRect instanceof Uf}function id(t,e){var n=t.detection.box,r=e.shiftBy(n.x,n.y),o=r.align(),i=t.detection.imageDims,a={landmarks:r,unshiftedLandmarks:e,alignedRect:new Uf(t.detection.score,o.rescale(i.reverse()),i)};return Object.assign({},t,a)}var ad=function(t){void 0===t&&(t={});var e=t.drawLines,n=void 0===e||e,r=t.drawPoints,o=void 0===r||r,i=t.lineWidth,a=t.lineColor,s=t.pointSize,u=t.pointColor;this.drawLines=n,this.drawPoints=o,this.lineWidth=i||1,this.pointSize=s||2,this.lineColor=a||"rgba(0, 255, 255, 1)",this.pointColor=u||"rgba(255, 0, 255, 1)"},sd=function(){function t(t,e){void 0===e&&(e={}),this.faceLandmarks=t,this.options=new ad(e)}return t.prototype.draw=function(t){var e=pp(t),n=this.options,r=n.drawLines,o=n.drawPoints,i=n.lineWidth,a=n.lineColor,s=n.pointSize,u=n.pointColor;if(r&&this.faceLandmarks instanceof $f&&(e.strokeStyle=a,e.lineWidth=i,xf(e,this.faceLandmarks.getJawOutline()),xf(e,this.faceLandmarks.getLeftEyeBrow()),xf(e,this.faceLandmarks.getRightEyeBrow()),xf(e,this.faceLandmarks.getNose()),xf(e,this.faceLandmarks.getLeftEye(),!0),xf(e,this.faceLandmarks.getRightEye(),!0),xf(e,this.faceLandmarks.getMouth(),!0)),o){e.strokeStyle=u,e.fillStyle=u;this.faceLandmarks.positions.forEach((function(t){e.beginPath(),e.arc(t.x,t.y,s,0,2*Math.PI),e.fill()}))}},t}();function ud(t,e){(Array.isArray(e)?e:[e]).forEach((function(e){var n=e instanceof Kf?e:od(e)?e.landmarks:void 0;if(!n)throw new Error("drawFaceLandmarks - expected faceExpressions to be FaceLandmarks | WithFaceLandmarks<WithFaceDetection<{}>> or array thereof");new sd(n).draw(t)}))}function cd(t,e){var n=[],r=jp(t),o=r.extractWeights,i=r.getRemainingWeights,a=function(t,e){var n=Wp(t,e),r=Vp(t,e);return{extractConvParams:n,extractSeparableConvParams:r,extractReductionBlockParams:function(t,e,o){return{separable_conv0:r(t,e,o+"/separable_conv0"),separable_conv1:r(e,e,o+"/separable_conv1"),expansion_conv:n(t,e,1,o+"/expansion_conv")}},extractMainBlockParams:function(t,e){return{separable_conv0:r(t,t,e+"/separable_conv0"),separable_conv1:r(t,t,e+"/separable_conv1"),separable_conv2:r(t,t,e+"/separable_conv2")}}}}(o,n),s=a.extractConvParams,u=a.extractSeparableConvParams,c=a.extractReductionBlockParams,l=a.extractMainBlockParams,h={conv_in:s(3,32,3,"entry_flow/conv_in"),reduction_block_0:c(32,64,"entry_flow/reduction_block_0"),reduction_block_1:c(64,128,"entry_flow/reduction_block_1")},f={};Mf(e,0,1).forEach((function(t){f["main_block_"+t]=l(128,"middle_flow/main_block_"+t)}));var p={reduction_block:c(128,256,"exit_flow/reduction_block"),separable_conv:u(256,512,"exit_flow/separable_conv")};if(0!==i().length)throw new Error("weights remaing after extract: "+i().length);return{paramMappings:n,params:{entry_flow:h,middle_flow:f,exit_flow:p}}}function ld(t,e){var n=[],r=function(t,e){var n=Hp(t,e),r=Kp(n),o=Gp(n);return{extractConvParams:r,extractSeparableConvParams:o,extractReductionBlockParams:function(t){return{separable_conv0:o(t+"/separable_conv0"),separable_conv1:o(t+"/separable_conv1"),expansion_conv:r(t+"/expansion_conv")}},extractMainBlockParams:function(t){return{separable_conv0:o(t+"/separable_conv0"),separable_conv1:o(t+"/separable_conv1"),separable_conv2:o(t+"/separable_conv2")}}}}(t,n),o=r.extractConvParams,i=r.extractSeparableConvParams,a=r.extractReductionBlockParams,s=r.extractMainBlockParams,u={conv_in:o("entry_flow/conv_in"),reduction_block_0:a("entry_flow/reduction_block_0"),reduction_block_1:a("entry_flow/reduction_block_1")},c={};Mf(e,0,1).forEach((function(t){c["main_block_"+t]=s("middle_flow/main_block_"+t)}));var l={reduction_block:a("exit_flow/reduction_block"),separable_conv:i("exit_flow/separable_conv")};return Lp(t,n),{params:{entry_flow:u,middle_flow:c,exit_flow:l},paramMappings:n}}function hd(t,e,n){return lu(Ju(t,e.filters,n,"same"),e.bias)}function fd(t,e,n){void 0===n&&(n=!0);var r=n?Vc(t):t;return r=Mp(r,e.separable_conv0,[1,1]),r=Mp(Vc(r),e.separable_conv1,[1,1]),r=gc(r,[3,3],[2,2],"same"),r=lu(r,hd(t,e.expansion_conv,[2,2]))}var pd,dd=function(t){function e(e){var n=t.call(this,"TinyXception")||this;return n._numMainBlocks=e,n}return wf(e,t),e.prototype.forwardInput=function(t){var e=this,n=this.params;if(!n)throw new Error("TinyXception - load model before inference");return Ue((function(){var r=Hf(t.toBatchTensor(112,!0),[122.782,117.001,104.298]).div(hn(256)),o=Vc(hd(r,n.entry_flow.conv_in,[2,2]));return o=fd(o,n.entry_flow.reduction_block_0,!1),o=fd(o,n.entry_flow.reduction_block_1),Mf(e._numMainBlocks,0,1).forEach((function(t){o=function(t,e){var n=Mp(Vc(t),e.separable_conv0,[1,1]);return n=Mp(Vc(n),e.separable_conv1,[1,1]),n=Mp(Vc(n),e.separable_conv2,[1,1]),lu(n,t)}(o,n.middle_flow["main_block_"+t])})),o=fd(o,n.exit_flow.reduction_block),o=Vc(Mp(o,n.exit_flow.separable_conv,[1,1]))}))},e.prototype.forward=function(t){return Ef(this,void 0,void 0,(function(){var e;return _f(this,(function(n){switch(n.label){case 0:return e=this.forwardInput,[4,Rp(t)];case 1:return[2,e.apply(this,[n.sent()])]}}))}))},e.prototype.getDefaultModelName=function(){return"tiny_xception_model"},e.prototype.extractParamsFromWeigthMap=function(t){return ld(t,this._numMainBlocks)},e.prototype.extractParams=function(t){return cd(t,this._numMainBlocks)},e}(Fp);!function(t){t.FEMALE="female",t.MALE="male"}(pd||(pd={}));var vd=function(t){function e(e){void 0===e&&(e=new dd(2));var n=t.call(this,"AgeGenderNet")||this;return n._faceFeatureExtractor=e,n}return wf(e,t),Object.defineProperty(e.prototype,"faceFeatureExtractor",{get:function(){return this._faceFeatureExtractor},enumerable:!0,configurable:!0}),e.prototype.runNet=function(t){var e=this,n=this.params;if(!n)throw new Error(this._name+" - load model before inference");return Ue((function(){var r=t instanceof Ip?e.faceFeatureExtractor.forwardInput(t):t,o=yc(r,[7,7],[2,2],"valid").as2D(r.shape[0],-1);return{age:Yp(o,n.fc.age).as1D(),gender:Yp(o,n.fc.gender)}}))},e.prototype.forwardInput=function(t){var e=this;return Ue((function(){var n=e.runNet(t),r=n.age,o=n.gender;return{age:r,gender:Tr(o)}}))},e.prototype.forward=function(t){return Ef(this,void 0,void 0,(function(){var e;return _f(this,(function(n){switch(n.label){case 0:return e=this.forwardInput,[4,Rp(t)];case 1:return[2,e.apply(this,[n.sent()])]}}))}))},e.prototype.predictAgeAndGender=function(t){return Ef(this,void 0,void 0,(function(){var e,n,r,o,i,a,s=this;return _f(this,(function(u){switch(u.label){case 0:return[4,Rp(t)];case 1:return e=u.sent(),[4,this.forwardInput(e)];case 2:return n=u.sent(),r=fr(n.age),o=fr(n.gender),i=r.map((function(t,e){return{ageTensor:t,genderTensor:o[e]}})),[4,Promise.all(i.map((function(t){var e=t.ageTensor,n=t.genderTensor;return Ef(s,void 0,void 0,(function(){var t,r,o,i,a;return _f(this,(function(s){switch(s.label){case 0:return[4,e.data()];case 1:return t=s.sent()[0],[4,n.data()];case 2:return r=s.sent()[0],i=(o=r>.5)?pd.MALE:pd.FEMALE,a=o?r:1-r,e.dispose(),n.dispose(),[2,{age:t,gender:i,genderProbability:a}]}}))}))})))];case 3:return a=u.sent(),n.age.dispose(),n.gender.dispose(),[2,e.isBatchInput?a:a[0]]}}))}))},e.prototype.getDefaultModelName=function(){return"age_gender_model"},e.prototype.dispose=function(e){void 0===e&&(e=!0),this.faceFeatureExtractor.dispose(e),t.prototype.dispose.call(this,e)},e.prototype.loadClassifierParams=function(t){var e=this.extractClassifierParams(t),n=e.params,r=e.paramMappings;this._params=n,this._paramMappings=r},e.prototype.extractClassifierParams=function(t){return function(t){var e=[],n=jp(t),r=n.extractWeights,o=n.getRemainingWeights,i=zp(r,e),a=i(512,1,"fc/age"),s=i(512,2,"fc/gender");if(0!==o().length)throw new Error("weights remaing after extract: "+o().length);return{paramMappings:e,params:{fc:{age:a,gender:s}}}}(t)},e.prototype.extractParamsFromWeigthMap=function(t){var e=Jp(t),n=e.featureExtractorMap,r=e.classifierMap;return this.faceFeatureExtractor.loadFromWeightMap(n),function(t){var e=[],n=Hp(t,e);function r(t){return{weights:n(t+"/weights",2),bias:n(t+"/bias",1)}}var o={fc:{age:r("fc/age"),gender:r("fc/gender")}};return Lp(t,e),{params:o,paramMappings:e}}(r)},e.prototype.extractParams=function(t){var e=t.slice(0,t.length-1539),n=t.slice(t.length-1539);return this.faceFeatureExtractor.extractWeights(e),this.extractClassifierParams(n)},e}(Fp),md=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return wf(e,t),e.prototype.postProcess=function(t,e,n){var r=n.map((function(t){var n=t.width,r=t.height,o=e/Math.max(r,n);return{width:n*o,height:r*o}})),o=r.length;return Ue((function(){var n=function(t,e){return cr([yn([68],t),yn([68],e)],1).as2D(1,136).as1D()},i=function(t,e){var n=r[t],o=n.width,i=n.height;return e(o,i)?Math.abs(o-i)/2:0},a=t.mul(yn([o,136],e)).sub(cr(Array.from(Array(o),(function(t,e){return n(function(t){return i(t,(function(t,e){return t<e}))}(e),function(t){return i(t,(function(t,e){return e<t}))}(e))})))).div(cr(Array.from(Array(o),(function(t,e){return n(r[e].width,r[e].height)}))));return a}))},e.prototype.forwardInput=function(t){var e=this;return Ue((function(){var n=e.runNet(t);return e.postProcess(n,t.inputSize,t.inputDimensions.map((function(t){return{height:t[0],width:t[1]}})))}))},e.prototype.forward=function(t){return Ef(this,void 0,void 0,(function(){var e;return _f(this,(function(n){switch(n.label){case 0:return e=this.forwardInput,[4,Rp(t)];case 1:return[2,e.apply(this,[n.sent()])]}}))}))},e.prototype.detectLandmarks=function(t){return Ef(this,void 0,void 0,(function(){var e,n,r,o=this;return _f(this,(function(i){switch(i.label){case 0:return[4,Rp(t)];case 1:return e=i.sent(),n=Ue((function(){return fr(o.forwardInput(e))})),[4,Promise.all(n.map((function(t,n){return Ef(o,void 0,void 0,(function(){var r,o,i,a,s;return _f(this,(function(u){switch(u.label){case 0:return i=(o=Array).from,[4,t.data()];case 1:return r=i.apply(o,[u.sent()]),a=r.filter((function(t,e){return Af(e)})),s=r.filter((function(t,e){return!Af(e)})),[2,new $f(Array(68).fill(0).map((function(t,e){return new Bf(a[e],s[e])})),{height:e.getInputHeight(n),width:e.getInputWidth(n)})]}}))}))})))];case 2:return r=i.sent(),n.forEach((function(t){return t.dispose()})),[2,e.isBatchInput?r:r[0]]}}))}))},e.prototype.getClassifierChannelsOut=function(){return 136},e}(Qp),gd=function(t){function e(e){return void 0===e&&(e=new $p),t.call(this,"FaceLandmark68Net",e)||this}return wf(e,t),e.prototype.getDefaultModelName=function(){return"face_landmark_68_model"},e.prototype.getClassifierChannelsIn=function(){return 256},e}(md);var yd=function(t){function e(){return t.call(this,"TinyFaceFeatureExtractor")||this}return wf(e,t),e.prototype.forwardInput=function(t){var e=this.params;if(!e)throw new Error("TinyFaceFeatureExtractor - load model before inference");return Ue((function(){var n=Op(Hf(t.toBatchTensor(112,!0),[122.782,117.001,104.298]).div(hn(255)),e.dense0,!0);return n=Op(n,e.dense1),n=Op(n,e.dense2),n=yc(n,[14,14],[2,2],"valid")}))},e.prototype.forward=function(t){return Ef(this,void 0,void 0,(function(){var e;return _f(this,(function(n){switch(n.label){case 0:return e=this.forwardInput,[4,Rp(t)];case 1:return[2,e.apply(this,[n.sent()])]}}))}))},e.prototype.getDefaultModelName=function(){return"face_feature_extractor_tiny_model"},e.prototype.extractParamsFromWeigthMap=function(t){return function(t){var e=[],n=Xp(t,e).extractDenseBlock3Params,r={dense0:n("dense0",!0),dense1:n("dense1"),dense2:n("dense2")};return Lp(t,e),{params:r,paramMappings:e}}(t)},e.prototype.extractParams=function(t){return function(t){var e=[],n=jp(t),r=n.extractWeights,o=n.getRemainingWeights,i=qp(r,e).extractDenseBlock3Params,a=i(3,32,"dense0",!0),s=i(32,64,"dense1"),u=i(64,128,"dense2");if(0!==o().length)throw new Error("weights remaing after extract: "+o().length);return{paramMappings:e,params:{dense0:a,dense1:s,dense2:u}}}(t)},e}(Fp),xd=function(t){function e(e){return void 0===e&&(e=new yd),t.call(this,"FaceLandmark68TinyNet",e)||this}return wf(e,t),e.prototype.getDefaultModelName=function(){return"face_landmark_68_tiny_model"},e.prototype.getClassifierChannelsIn=function(){return 128},e}(md);!function(t){function e(){return null!==t&&t.apply(this,arguments)||this}wf(e,t)}(gd);function bd(t,e,n,r,o){void 0===o&&(o="same");var i=e.conv,a=i.filters,s=i.bias,u=Ju(t,a,n,o);return u=function(t,e){return lu(_u(t,e.weights),e.biases)}(u=lu(u,s),e.scale),r?Vc(u):u}function wd(t,e){return bd(t,e,[1,1],!1)}function Cd(t,e){return bd(t,e,[2,2],!0,"valid")}function Ed(t,e){function n(n,r,o,i){var a=function(e,n,r){var o=t(e),i=o.length/(n*r*r);if(i%1!=0)throw new Error("depth has to be an integer: "+i+", weights.length: "+o.length+", numFilters: "+n+", filterSize: "+r);return Ue((function(){return jc(vn(o,[n,i,r,r]),[2,3,1,0])}))}(n,r,o),s=fn(t(r));return e.push({paramPath:i+"/filters"},{paramPath:i+"/bias"}),{filters:a,bias:s}}function r(r,o,i,a){var s=n(r,o,i,a+"/conv"),u=function(n,r){var o=fn(t(n)),i=fn(t(n));return e.push({paramPath:r+"/weights"},{paramPath:r+"/biases"}),{weights:o,biases:i}}(o,a+"/scale");return{conv:s,scale:u}}return{extractConvLayerParams:r,extractResidualLayerParams:function(t,e,n,o,i){return void 0===i&&(i=!1),{conv1:r((i?.5:1)*t,e,n,o+"/conv1"),conv2:r(t,e,n,o+"/conv2")}}}}function _d(t,e){var n=Hp(t,e);function r(t){var e=n(t+"/conv/filters",4),r=n(t+"/conv/bias",1),o=function(t){return{weights:n(t+"/scale/weights",1),biases:n(t+"/scale/biases",1)}}(t);return{conv:{filters:e,bias:r},scale:o}}return{extractConvLayerParams:r,extractResidualLayerParams:function(t){return{conv1:r(t+"/conv1"),conv2:r(t+"/conv2")}}}}function Id(t){var e=[],n=_d(t,e),r=n.extractConvLayerParams,o=n.extractResidualLayerParams,i=r("conv32_down"),a=o("conv32_1"),s=o("conv32_2"),u=o("conv32_3"),c=o("conv64_down"),l=o("conv64_1"),h=o("conv64_2"),f=o("conv64_3"),p=o("conv128_down"),d=o("conv128_1"),v=o("conv128_2"),m=o("conv256_down"),g=o("conv256_1"),y=o("conv256_2"),x=o("conv256_down_out"),b=t.fc;if(e.push({originalPath:"fc",paramPath:"fc"}),!Sf(b,2))throw new Error("expected weightMap[fc] to be a Tensor2D, instead have "+b);var w={conv32_down:i,conv32_1:a,conv32_2:s,conv32_3:u,conv64_down:c,conv64_1:l,conv64_2:h,conv64_3:f,conv128_down:p,conv128_1:d,conv128_2:v,conv256_down:m,conv256_1:g,conv256_2:y,conv256_down_out:x,fc:b};return Lp(t,e),{params:w,paramMappings:e}}function Rd(t,e){var n=function(t,e){return bd(t,e,[1,1],!0)}(t,e.conv1);return n=wd(n,e.conv2),n=lu(n,t),n=Vc(n)}function Sd(t,e){var n=Cd(t,e.conv1);n=wd(n,e.conv2);var r=yc(t,2,2,"valid"),o=gn(r.shape),i=r.shape[3]!==n.shape[3];if(r.shape[1]!==n.shape[1]||r.shape[2]!==n.shape[2]){var a=If(n.shape);a[1]=1;var s=gn(a),u=If((n=Cn([n,s],1)).shape);u[2]=1;var c=gn(u);n=Cn([n,c],2)}return r=i?Cn([r,o],3):r,n=lu(r,n),n=Vc(n)}var kd=function(t){function e(){return t.call(this,"FaceRecognitionNet")||this}return wf(e,t),e.prototype.forwardInput=function(t){var e=this.params;if(!e)throw new Error("FaceRecognitionNet - load model before inference");return Ue((function(){var n=Cd(Hf(t.toBatchTensor(150,!0).toFloat(),[122.782,117.001,104.298]).div(hn(256)),e.conv32_down);n=Rd(n=gc(n,3,2,"valid"),e.conv32_1),n=Rd(n,e.conv32_2),n=Rd(n,e.conv32_3),n=Rd(n=Sd(n,e.conv64_down),e.conv64_1),n=Rd(n,e.conv64_2),n=Rd(n,e.conv64_3),n=Rd(n=Sd(n,e.conv128_down),e.conv128_1),n=Rd(n,e.conv128_2),n=Rd(n=Sd(n,e.conv256_down),e.conv256_1);var r=(n=Sd(n=Rd(n,e.conv256_2),e.conv256_down_out)).mean([1,2]);return sc(r,e.fc)}))},e.prototype.forward=function(t){return Ef(this,void 0,void 0,(function(){var e;return _f(this,(function(n){switch(n.label){case 0:return e=this.forwardInput,[4,Rp(t)];case 1:return[2,e.apply(this,[n.sent()])]}}))}))},e.prototype.computeFaceDescriptor=function(t){return Ef(this,void 0,void 0,(function(){var e,n,r,o=this;return _f(this,(function(i){switch(i.label){case 0:return[4,Rp(t)];case 1:return e=i.sent(),n=Ue((function(){return fr(o.forwardInput(e))})),[4,Promise.all(n.map((function(t){return t.data()})))];case 2:return r=i.sent(),n.forEach((function(t){return t.dispose()})),[2,e.isBatchInput?r:r[0]]}}))}))},e.prototype.getDefaultModelName=function(){return"face_recognition_model"},e.prototype.extractParamsFromWeigthMap=function(t){return Id(t)},e.prototype.extractParams=function(t){return function(t){var e=jp(t),n=e.extractWeights,r=e.getRemainingWeights,o=[],i=Ed(n,o),a=i.extractConvLayerParams,s=i.extractResidualLayerParams,u=a(4704,32,7,"conv32_down"),c=s(9216,32,3,"conv32_1"),l=s(9216,32,3,"conv32_2"),h=s(9216,32,3,"conv32_3"),f=s(36864,64,3,"conv64_down",!0),p=s(36864,64,3,"conv64_1"),d=s(36864,64,3,"conv64_2"),v=s(36864,64,3,"conv64_3"),m=s(147456,128,3,"conv128_down",!0),g=s(147456,128,3,"conv128_1"),y=s(147456,128,3,"conv128_2"),x=s(589824,256,3,"conv256_down",!0),b=s(589824,256,3,"conv256_1"),w=s(589824,256,3,"conv256_2"),C=s(589824,256,3,"conv256_down_out"),E=Ue((function(){return jc(pn(n(32768),[128,256]),[1,0])}));if(o.push({paramPath:"fc"}),0!==r().length)throw new Error("weights remaing after extract: "+r().length);return{params:{conv32_down:u,conv32_1:c,conv32_2:l,conv32_3:h,conv64_down:f,conv64_1:p,conv64_2:d,conv64_3:v,conv128_down:m,conv128_1:g,conv128_2:y,conv256_down:x,conv256_1:b,conv256_2:w,conv256_down_out:C,fc:E},paramMappings:o}}(t)},e}(Fp);function Dd(t,e,n){var r={gender:e,genderProbability:n};return Object.assign({},t,r)}var Ad=function(){function t(t){var e=void 0===t?{}:t,n=e.minFaceSize,r=e.scaleFactor,o=e.maxNumScales,i=e.scoreThresholds,a=e.scaleSteps;if(this._name="MtcnnOptions",this._minFaceSize=n||20,this._scaleFactor=r||.709,this._maxNumScales=o||10,this._scoreThresholds=i||[.6,.7,.7],this._scaleSteps=a,"number"!=typeof this._minFaceSize||this._minFaceSize<0)throw new Error(this._name+" - expected minFaceSize to be a number > 0");if("number"!=typeof this._scaleFactor||this._scaleFactor<=0||this._scaleFactor>=1)throw new Error(this._name+" - expected scaleFactor to be a number between 0 and 1");if("number"!=typeof this._maxNumScales||this._maxNumScales<0)throw new Error(this._name+" - expected maxNumScales to be a number > 0");if(!Array.isArray(this._scoreThresholds)||3!==this._scoreThresholds.length||this._scoreThresholds.some((function(t){return"number"!=typeof t})))throw new Error(this._name+" - expected scoreThresholds to be an array of numbers of length 3");if(this._scaleSteps&&(!Array.isArray(this._scaleSteps)||this._scaleSteps.some((function(t){return"number"!=typeof t}))))throw new Error(this._name+" - expected scaleSteps to be an array of numbers")}return Object.defineProperty(t.prototype,"minFaceSize",{get:function(){return this._minFaceSize},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"scaleFactor",{get:function(){return this._scaleFactor},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"maxNumScales",{get:function(){return this._maxNumScales},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"scoreThresholds",{get:function(){return this._scoreThresholds},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"scaleSteps",{get:function(){return this._scaleSteps},enumerable:!0,configurable:!0}),t}();function Td(t,e){function n(n,r,o,i,a){var s=vn(t(n*r*o*o),[o,o,n,r]),u=fn(t(r));return e.push({paramPath:i+"/filters"},{paramPath:i+"/"+(a?"batch_norm_offset":"bias")}),{filters:s,bias:u}}function r(t,e,r,o){var i=n(t,e,r,o,!0);return{filters:i.filters,batch_norm_offset:i.bias}}function o(n,o,i){var a=function(n,r){var o=vn(t(9*n),[3,3,n,1]),i=fn(t(n)),a=fn(t(n)),s=fn(t(n)),u=fn(t(n));return e.push({paramPath:r+"/filters"},{paramPath:r+"/batch_norm_scale"},{paramPath:r+"/batch_norm_offset"},{paramPath:r+"/batch_norm_mean"},{paramPath:r+"/batch_norm_variance"}),{filters:o,batch_norm_scale:i,batch_norm_offset:a,batch_norm_mean:s,batch_norm_variance:u}}(n,i+"/depthwise_conv");return{depthwise_conv:a,pointwise_conv:r(n,o,1,i+"/pointwise_conv")}}return{extractMobilenetV1Params:function(){return{conv_0:r(3,32,3,"mobilenetv1/conv_0"),conv_1:o(32,64,"mobilenetv1/conv_1"),conv_2:o(64,128,"mobilenetv1/conv_2"),conv_3:o(128,128,"mobilenetv1/conv_3"),conv_4:o(128,256,"mobilenetv1/conv_4"),conv_5:o(256,256,"mobilenetv1/conv_5"),conv_6:o(256,512,"mobilenetv1/conv_6"),conv_7:o(512,512,"mobilenetv1/conv_7"),conv_8:o(512,512,"mobilenetv1/conv_8"),conv_9:o(512,512,"mobilenetv1/conv_9"),conv_10:o(512,512,"mobilenetv1/conv_10"),conv_11:o(512,512,"mobilenetv1/conv_11"),conv_12:o(512,1024,"mobilenetv1/conv_12"),conv_13:o(1024,1024,"mobilenetv1/conv_13")}},extractPredictionLayerParams:function(){return{conv_0:r(1024,256,1,"prediction_layer/conv_0"),conv_1:r(256,512,3,"prediction_layer/conv_1"),conv_2:r(512,128,1,"prediction_layer/conv_2"),conv_3:r(128,256,3,"prediction_layer/conv_3"),conv_4:r(256,128,1,"prediction_layer/conv_4"),conv_5:r(128,256,3,"prediction_layer/conv_5"),conv_6:r(256,64,1,"prediction_layer/conv_6"),conv_7:r(64,128,3,"prediction_layer/conv_7"),box_predictor_0:{box_encoding_predictor:n(512,12,1,"prediction_layer/box_predictor_0/box_encoding_predictor"),class_predictor:n(512,9,1,"prediction_layer/box_predictor_0/class_predictor")},box_predictor_1:{box_encoding_predictor:n(1024,24,1,"prediction_layer/box_predictor_1/box_encoding_predictor"),class_predictor:n(1024,18,1,"prediction_layer/box_predictor_1/class_predictor")},box_predictor_2:{box_encoding_predictor:n(512,24,1,"prediction_layer/box_predictor_2/box_encoding_predictor"),class_predictor:n(512,18,1,"prediction_layer/box_predictor_2/class_predictor")},box_predictor_3:{box_encoding_predictor:n(256,24,1,"prediction_layer/box_predictor_3/box_encoding_predictor"),class_predictor:n(256,18,1,"prediction_layer/box_predictor_3/class_predictor")},box_predictor_4:{box_encoding_predictor:n(256,24,1,"prediction_layer/box_predictor_4/box_encoding_predictor"),class_predictor:n(256,18,1,"prediction_layer/box_predictor_4/class_predictor")},box_predictor_5:{box_encoding_predictor:n(128,24,1,"prediction_layer/box_predictor_5/box_encoding_predictor"),class_predictor:n(128,18,1,"prediction_layer/box_predictor_5/class_predictor")}}}}}function Nd(t){var e=[],n=function(t,e){var n=Hp(t,e);function r(t,e,r){return{filters:n(t+"/Conv2d_"+e+"_pointwise/weights",4,r+"/filters"),batch_norm_offset:n(t+"/Conv2d_"+e+"_pointwise/convolution_bn_offset",1,r+"/batch_norm_offset")}}function o(t){var e="mobilenetv1/conv_"+t,o="MobilenetV1/Conv2d_"+t+"_depthwise",i=e+"/depthwise_conv",a=e+"/pointwise_conv";return{depthwise_conv:{filters:n(o+"/depthwise_weights",4,i+"/filters"),batch_norm_scale:n(o+"/BatchNorm/gamma",1,i+"/batch_norm_scale"),batch_norm_offset:n(o+"/BatchNorm/beta",1,i+"/batch_norm_offset"),batch_norm_mean:n(o+"/BatchNorm/moving_mean",1,i+"/batch_norm_mean"),batch_norm_variance:n(o+"/BatchNorm/moving_variance",1,i+"/batch_norm_variance")},pointwise_conv:r("MobilenetV1",t,a)}}function i(t,e){return{filters:n(t+"/weights",4,e+"/filters"),bias:n(t+"/biases",1,e+"/bias")}}function a(t){return{box_encoding_predictor:i("Prediction/BoxPredictor_"+t+"/BoxEncodingPredictor","prediction_layer/box_predictor_"+t+"/box_encoding_predictor"),class_predictor:i("Prediction/BoxPredictor_"+t+"/ClassPredictor","prediction_layer/box_predictor_"+t+"/class_predictor")}}return{extractMobilenetV1Params:function(){return{conv_0:r("MobilenetV1",0,"mobilenetv1/conv_0"),conv_1:o(1),conv_2:o(2),conv_3:o(3),conv_4:o(4),conv_5:o(5),conv_6:o(6),conv_7:o(7),conv_8:o(8),conv_9:o(9),conv_10:o(10),conv_11:o(11),conv_12:o(12),conv_13:o(13)}},extractPredictionLayerParams:function(){return{conv_0:r("Prediction",0,"prediction_layer/conv_0"),conv_1:r("Prediction",1,"prediction_layer/conv_1"),conv_2:r("Prediction",2,"prediction_layer/conv_2"),conv_3:r("Prediction",3,"prediction_layer/conv_3"),conv_4:r("Prediction",4,"prediction_layer/conv_4"),conv_5:r("Prediction",5,"prediction_layer/conv_5"),conv_6:r("Prediction",6,"prediction_layer/conv_6"),conv_7:r("Prediction",7,"prediction_layer/conv_7"),box_predictor_0:a(0),box_predictor_1:a(1),box_predictor_2:a(2),box_predictor_3:a(3),box_predictor_4:a(4),box_predictor_5:a(5)}}}}(t,e),r=n.extractMobilenetV1Params,o=n.extractPredictionLayerParams,i=t["Output/extra_dim"];if(e.push({originalPath:"Output/extra_dim",paramPath:"output_layer/extra_dim"}),!kf(i))throw new Error("expected weightMap['Output/extra_dim'] to be a Tensor3D, instead have "+i);var a={mobilenetv1:r(),prediction_layer:o(),output_layer:{extra_dim:i}};return Lp(t,e),{params:a,paramMappings:e}}function Fd(t,e,n){return Ue((function(){var r=Ju(t,e.filters,n,"same");return r=lu(r,e.batch_norm_offset),ys(r,0,6)}))}function Md(t,e){return Ue((function(){var n=null,r=Fd(t,e.conv_0,[2,2]);if([e.conv_1,e.conv_2,e.conv_3,e.conv_4,e.conv_5,e.conv_6,e.conv_7,e.conv_8,e.conv_9,e.conv_10,e.conv_11,e.conv_12,e.conv_13].forEach((function(t,e){var o=e+1,i=function(t){return[2,4,6,12].some((function(e){return e===t}))?[2,2]:[1,1]}(o);r=function(t,e,n){return Ue((function(){var r=ec(t,e.filters,n,"same");return r=tu(r,e.batch_norm_mean,e.batch_norm_variance,e.batch_norm_offset,e.batch_norm_scale,.0010000000474974513),ys(r,0,6)}))}(r,t.depthwise_conv,i),r=Fd(r,t.pointwise_conv,[1,1]),11===o&&(n=r)})),null===n)throw new Error("mobileNetV1 - output of conv layer 11 is null");return{out:r,conv11:n}}))}function Od(t,e,n){var r=t.arraySync(),o=Math.min(r[e][0],r[e][2]),i=Math.min(r[e][1],r[e][3]),a=Math.max(r[e][0],r[e][2]),s=Math.max(r[e][1],r[e][3]),u=Math.min(r[n][0],r[n][2]),c=Math.min(r[n][1],r[n][3]),l=Math.max(r[n][0],r[n][2]),h=Math.max(r[n][1],r[n][3]),f=(a-o)*(s-i),p=(l-u)*(h-c);if(f<=0||p<=0)return 0;var d=Math.max(o,u),v=Math.max(i,c),m=Math.min(a,l),g=Math.min(s,h),y=Math.max(m-d,0)*Math.max(g-v,0);return y/(f+p-y)}function Pd(t,e){var n=function(t){var e=fr(jc(t,[1,0])),n=[Du(e[2],e[0]),Du(e[3],e[1])];return{sizes:n,centers:[lu(e[0],du(n[0],hn(2))),lu(e[1],du(n[1],hn(2)))]}}(t),r=n.sizes,o=n.centers,i=fr(jc(e,[1,0])),a=du(_u(Cs(du(i[2],hn(5))),r[0]),hn(2)),s=lu(_u(du(i[0],hn(10)),r[0]),o[0]),u=du(_u(Cs(du(i[3],hn(5))),r[1]),hn(2)),c=lu(_u(du(i[1],hn(10)),r[1]),o[1]);return jc(cr([Du(s,a),Du(c,u),lu(s,a),lu(c,u)]),[1,0])}function Bd(t,e){return Ue((function(){var n=t.shape[0];return{boxPredictionEncoding:ar(Bp(t,e.box_encoding_predictor),[n,-1,1,4]),classPrediction:ar(Bp(t,e.class_predictor),[n,-1,3])}}))}var Ld=function(){function t(t){var e=void 0===t?{}:t,n=e.minConfidence,r=e.maxResults;if(this._name="SsdMobilenetv1Options",this._minConfidence=n||.5,this._maxResults=r||100,"number"!=typeof this._minConfidence||this._minConfidence<=0||this._minConfidence>=1)throw new Error(this._name+" - expected minConfidence to be a number between 0 and 1");if("number"!=typeof this._maxResults)throw new Error(this._name+" - expected maxResults to be a number")}return Object.defineProperty(t.prototype,"minConfidence",{get:function(){return this._minConfidence},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"maxResults",{get:function(){return this._maxResults},enumerable:!0,configurable:!0}),t}(),Wd=function(t){function e(){return t.call(this,"SsdMobilenetv1")||this}return wf(e,t),e.prototype.forwardInput=function(t){var e=this.params;if(!e)throw new Error("SsdMobilenetv1 - load model before inference");return Ue((function(){var n=t.toBatchTensor(512,!1).toFloat(),r=Md(Du(_u(n,hn(.007843137718737125)),hn(1)),e.mobilenetv1),o=function(t,e,n){return Ue((function(){var r=Fd(t,n.conv_0,[1,1]),o=Fd(r,n.conv_1,[2,2]),i=Fd(o,n.conv_2,[1,1]),a=Fd(i,n.conv_3,[2,2]),s=Fd(a,n.conv_4,[1,1]),u=Fd(s,n.conv_5,[2,2]),c=Fd(u,n.conv_6,[1,1]),l=Fd(c,n.conv_7,[2,2]),h=Bd(e,n.box_predictor_0),f=Bd(t,n.box_predictor_1),p=Bd(o,n.box_predictor_2),d=Bd(a,n.box_predictor_3),v=Bd(u,n.box_predictor_4),m=Bd(l,n.box_predictor_5);return{boxPredictions:Cn([h.boxPredictionEncoding,f.boxPredictionEncoding,p.boxPredictionEncoding,d.boxPredictionEncoding,v.boxPredictionEncoding,m.boxPredictionEncoding],1),classPredictions:Cn([h.classPrediction,f.classPrediction,p.classPrediction,d.classPrediction,v.classPrediction,m.classPrediction],1)}}))}(r.out,r.conv11,e.prediction_layer);return function(t,e,n){return Ue((function(){var r=t.shape[0],o=Pd(ar(lr(n.extra_dim,[r,1,1]),[-1,4]),ar(t,[-1,4]));o=ar(o,[r,o.shape[0]/r,4]);var i=Ns(Cc(e,[0,0,1],[-1,-1,-1])),a=Cc(i,[0,0,0],[-1,-1,1]);return a=ar(a,[r,a.shape[1]]),{boxes:fr(o),scores:fr(a)}}))}(o.boxPredictions,o.classPredictions,e.output_layer)}))},e.prototype.forward=function(t){return Ef(this,void 0,void 0,(function(){var e;return _f(this,(function(n){switch(n.label){case 0:return e=this.forwardInput,[4,Rp(t)];case 1:return[2,e.apply(this,[n.sent()])]}}))}))},e.prototype.locateFaces=function(t,e){return void 0===e&&(e={}),Ef(this,void 0,void 0,(function(){var n,r,o,i,a,s,u,c,l,h,f,p,d,v,m,g,y,x,b,w;return _f(this,(function(C){switch(C.label){case 0:return n=new Ld(e),r=n.maxResults,o=n.minConfidence,[4,Rp(t)];case 1:for(i=C.sent(),a=this.forwardInput(i),s=a.boxes,u=a.scores,c=s[0],l=u[0],h=1;h<s.length;h++)s[h].dispose(),u[h].dispose();return d=(p=Array).from,[4,l.data()];case 2:return f=d.apply(p,[C.sent()]),.5,v=function(t,e,n,r,o){var i=t.shape[0],a=Math.min(n,i),s=e.map((function(t,e){return{score:t,boxIndex:e}})).filter((function(t){return t.score>o})).sort((function(t,e){return e.score-t.score})),u=function(t){return t<=r?1:0},c=[];return s.forEach((function(e){if(!(c.length>=a)){for(var n=e.score,r=c.length-1;r>=0;--r){var i=Od(t,e.boxIndex,c[r]);if(0!==i&&(e.score*=u(i),e.score<=o))break}n===e.score&&c.push(e.boxIndex)}})),c}(c,f,r,.5,o),m=i.getReshapedInputDimensions(0),g=i.inputSize,y=g/m.width,x=g/m.height,b=c.arraySync(),w=v.map((function(t){var e=[Math.max(0,b[t][0]),Math.min(1,b[t][2])].map((function(t){return t*x})),n=e[0],r=e[1],o=[Math.max(0,b[t][1]),Math.min(1,b[t][3])].map((function(t){return t*y})),a=o[0],s=o[1];return new Uf(f[t],new qf(a,n,s-a,r-n),{height:i.getInputHeight(0),width:i.getInputWidth(0)})})),c.dispose(),l.dispose(),[2,w]}}))}))},e.prototype.getDefaultModelName=function(){return"ssd_mobilenetv1_model"},e.prototype.extractParamsFromWeigthMap=function(t){return Nd(t)},e.prototype.extractParams=function(t){return function(t){var e=[],n=jp(t),r=n.extractWeights,o=n.getRemainingWeights,i=Td(r,e),a=i.extractMobilenetV1Params,s=i.extractPredictionLayerParams,u=a(),c=s(),l={extra_dim:dn(r(20472),[1,5118,4])};if(e.push({paramPath:"output_layer/extra_dim"}),0!==o().length)throw new Error("weights remaing after extract: "+o().length);return{params:{mobilenetv1:u,prediction_layer:c,output_layer:l},paramMappings:e}}(t)},e}(Fp);!function(t){function e(){return null!==t&&t.apply(this,arguments)||this}wf(e,t)}(Wd);var zd,Ud=[new Bf(.738768,.874946),new Bf(2.42204,2.65704),new Bf(4.30971,7.04493),new Bf(10.246,4.59428),new Bf(12.6868,11.8741)],Vd=[new Bf(1.603231,2.094468),new Bf(6.041143,7.080126),new Bf(2.882459,3.518061),new Bf(4.266906,5.178857),new Bf(9.041765,10.66308)],Gd=[117.001,114.697,97.404],Hd=function(t){return"number"==typeof t};function jd(t){return Ue((function(){var e=_u(t,hn(.10000000149011612));return lu(Vc(Du(t,e)),e)}))}function qd(t,e){return Ue((function(){var n=Jn(t,[[0,0],[1,1],[1,1],[0,0]]);return n=Ju(n,e.conv.filters,[1,1],"valid"),n=Du(n,e.bn.sub),n=_u(n,e.bn.truediv),jd(n=lu(n,e.conv.bias))}))}function Kd(t,e){return Ue((function(){var n=Jn(t,[[0,0],[1,1],[1,1],[0,0]]);return n=oc(n,e.depthwise_filter,e.pointwise_filter,[1,1],"valid"),jd(n=lu(n,e.bias))}))}function Xd(t,e){var n=Wp(t,e);var r=Vp(t,e);return{extractConvParams:n,extractConvWithBatchNormParams:function(r,o,i){var a=n(r,o,3,i+"/conv"),s=function(n,r){var o=fn(t(n)),i=fn(t(n));return e.push({paramPath:r+"/sub"},{paramPath:r+"/truediv"}),{sub:o,truediv:i}}(o,i+"/bn");return{conv:a,bn:s}},extractSeparableConvParams:r}}function $d(t,e){var n=Hp(t,e);function r(t){return{filters:n(t+"/filters",4),bias:n(t+"/bias",1)}}return{extractConvParams:r,extractConvWithBatchNormParams:function(t){var e=r(t+"/conv"),o=function(t){return{sub:n(t+"/sub",1),truediv:n(t+"/truediv",1)}}(t+"/bn");return{conv:e,bn:o}},extractSeparableConvParams:Gp(n)}}!function(t){t[t.XS=224]="XS",t[t.SM=320]="SM",t[t.MD=416]="MD",t[t.LG=608]="LG"}(zd||(zd={}));var Yd=function(){function t(t){var e=void 0===t?{}:t,n=e.inputSize,r=e.scoreThreshold;if(this._name="TinyYolov2Options",this._inputSize=n||416,this._scoreThreshold=r||.5,"number"!=typeof this._inputSize||this._inputSize%32!=0)throw new Error(this._name+" - expected inputSize to be a number divisible by 32");if("number"!=typeof this._scoreThreshold||this._scoreThreshold<=0||this._scoreThreshold>=1)throw new Error(this._name+" - expected scoreThreshold to be a number between 0 and 1")}return Object.defineProperty(t.prototype,"inputSize",{get:function(){return this._inputSize},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"scoreThreshold",{get:function(){return this._scoreThreshold},enumerable:!0,configurable:!0}),t}(),Jd=function(t){function e(e){var n=t.call(this,"TinyYolov2")||this;return function(t){if(!t)throw new Error("invalid config: "+t);if("boolean"!=typeof t.withSeparableConvs)throw new Error("config.withSeparableConvs has to be a boolean, have: "+t.withSeparableConvs);if(!Hd(t.iouThreshold)||t.iouThreshold<0||t.iouThreshold>1)throw new Error("config.iouThreshold has to be a number between [0, 1], have: "+t.iouThreshold);if(!Array.isArray(t.classes)||!t.classes.length||!t.classes.every((function(t){return"string"==typeof t})))throw new Error("config.classes has to be an array class names: string[], have: "+JSON.stringify(t.classes));if(!Array.isArray(t.anchors)||!t.anchors.length||!t.anchors.map((function(t){return t||{}})).every((function(t){return Hd(t.x)&&Hd(t.y)})))throw new Error("config.anchors has to be an array of { x: number, y: number }, have: "+JSON.stringify(t.anchors));if(t.meanRgb&&(!Array.isArray(t.meanRgb)||3!==t.meanRgb.length||!t.meanRgb.every(Hd)))throw new Error("config.meanRgb has to be an array of shape [number, number, number], have: "+JSON.stringify(t.meanRgb))}(e),n._config=e,n}return wf(e,t),Object.defineProperty(e.prototype,"config",{get:function(){return this._config},enumerable:!0,configurable:!0}),Object.defineProperty(e.prototype,"withClassScores",{get:function(){return this.config.withClassScores||this.config.classes.length>1},enumerable:!0,configurable:!0}),Object.defineProperty(e.prototype,"boxEncodingSize",{get:function(){return 5+(this.withClassScores?this.config.classes.length:0)},enumerable:!0,configurable:!0}),e.prototype.runTinyYolov2=function(t,e){var n=qd(t,e.conv0);return n=qd(n=gc(n,[2,2],[2,2],"same"),e.conv1),n=qd(n=gc(n,[2,2],[2,2],"same"),e.conv2),n=qd(n=gc(n,[2,2],[2,2],"same"),e.conv3),n=qd(n=gc(n,[2,2],[2,2],"same"),e.conv4),n=qd(n=gc(n,[2,2],[2,2],"same"),e.conv5),n=qd(n=gc(n,[2,2],[1,1],"same"),e.conv6),Bp(n=qd(n,e.conv7),e.conv8,"valid",!1)},e.prototype.runMobilenet=function(t,e){var n=this.config.isFirstLayerConv2d?jd(Bp(t,e.conv0,"valid",!1)):Kd(t,e.conv0);return n=Kd(n=gc(n,[2,2],[2,2],"same"),e.conv1),n=Kd(n=gc(n,[2,2],[2,2],"same"),e.conv2),n=Kd(n=gc(n,[2,2],[2,2],"same"),e.conv3),n=Kd(n=gc(n,[2,2],[2,2],"same"),e.conv4),n=Kd(n=gc(n,[2,2],[2,2],"same"),e.conv5),n=gc(n,[2,2],[1,1],"same"),n=e.conv6?Kd(n,e.conv6):n,Bp(n=e.conv7?Kd(n,e.conv7):n,e.conv8,"valid",!1)},e.prototype.forwardInput=function(t,e){var n=this,r=this.params;if(!r)throw new Error("TinyYolov2 - load model before inference");return Ue((function(){var o=t.toBatchTensor(e,!1).toFloat();return o=(o=n.config.meanRgb?Hf(o,n.config.meanRgb):o).div(hn(256)),n.config.withSeparableConvs?n.runMobilenet(o,r):n.runTinyYolov2(o,r)}))},e.prototype.forward=function(t,e){return Ef(this,void 0,void 0,(function(){var n;return _f(this,(function(r){switch(r.label){case 0:return n=this.forwardInput,[4,Rp(t)];case 1:return[4,n.apply(this,[r.sent(),e])];case 2:return[2,r.sent()]}}))}))},e.prototype.detect=function(t,e){return void 0===e&&(e={}),Ef(this,void 0,void 0,(function(){var n,r,o,i,a,s,u,c,l,h,f,p,d,v=this;return _f(this,(function(m){switch(m.label){case 0:return n=new Yd(e),r=n.inputSize,o=n.scoreThreshold,[4,Rp(t)];case 1:return i=m.sent(),[4,this.forwardInput(i,r)];case 2:return a=m.sent(),s=Ue((function(){return fr(a)[0].expandDims()})),u={width:i.getInputWidth(0),height:i.getInputHeight(0)},[4,this.extractBoxes(s,i.getReshapedInputDimensions(0),o)];case 3:return c=m.sent(),a.dispose(),s.dispose(),l=c.map((function(t){return t.box})),h=c.map((function(t){return t.score})),f=c.map((function(t){return t.classScore})),p=c.map((function(t){return v.config.classes[t.label]})),d=Gf(l.map((function(t){return t.rescale(r)})),h,this.config.iouThreshold,!0),[2,d.map((function(t){return new zf(h[t],f[t],p[t],l[t],u)}))]}}))}))},e.prototype.getDefaultModelName=function(){return""},e.prototype.extractParamsFromWeigthMap=function(t){return function(t,e){var n,r=[],o=$d(t,r),i=o.extractConvParams,a=o.extractConvWithBatchNormParams,s=o.extractSeparableConvParams;if(e.withSeparableConvs){var u=e.filterSizes&&e.filterSizes.length||9;n={conv0:e.isFirstLayerConv2d?i("conv0"):s("conv0"),conv1:s("conv1"),conv2:s("conv2"),conv3:s("conv3"),conv4:s("conv4"),conv5:s("conv5"),conv6:u>7?s("conv6"):void 0,conv7:u>8?s("conv7"):void 0,conv8:i("conv8")}}else n={conv0:a("conv0"),conv1:a("conv1"),conv2:a("conv2"),conv3:a("conv3"),conv4:a("conv4"),conv5:a("conv5"),conv6:a("conv6"),conv7:a("conv7"),conv8:i("conv8")};return Lp(t,r),{params:n,paramMappings:r}}(t,this.config)},e.prototype.extractParams=function(t){var n=this.config.filterSizes||e.DEFAULT_FILTER_SIZES,r=n?n.length:void 0;if(7!==r&&8!==r&&9!==r)throw new Error("TinyYolov2 - expected 7 | 8 | 9 convolutional filters, but found "+r+" filterSizes in config");return function(t,e,n,r){var o,i=jp(t),a=i.extractWeights,s=i.getRemainingWeights,u=[],c=Xd(a,u),l=c.extractConvParams,h=c.extractConvWithBatchNormParams,f=c.extractSeparableConvParams;if(e.withSeparableConvs){var p=r[0],d=r[1],v=r[2],m=r[3],g=r[4],y=r[5],x=r[6],b=r[7],w=r[8];o={conv0:e.isFirstLayerConv2d?l(p,d,3,"conv0"):f(p,d,"conv0"),conv1:f(d,v,"conv1"),conv2:f(v,m,"conv2"),conv3:f(m,g,"conv3"),conv4:f(g,y,"conv4"),conv5:f(y,x,"conv5"),conv6:b?f(x,b,"conv6"):void 0,conv7:w?f(b,w,"conv7"):void 0,conv8:l(w||b||x,5*n,1,"conv8")}}else p=r[0],d=r[1],v=r[2],m=r[3],g=r[4],y=r[5],x=r[6],b=r[7],w=r[8],o={conv0:h(p,d,"conv0"),conv1:h(d,v,"conv1"),conv2:h(v,m,"conv2"),conv3:h(m,g,"conv3"),conv4:h(g,y,"conv4"),conv5:h(y,x,"conv5"),conv6:h(x,b,"conv6"),conv7:h(b,w,"conv7"),conv8:l(w,5*n,1,"conv8")};if(0!==s().length)throw new Error("weights remaing after extract: "+s().length);return{params:o,paramMappings:u}}(t,this.config,this.boxEncodingSize,n)},e.prototype.extractBoxes=function(t,e,n){return Ef(this,void 0,void 0,(function(){var r,o,i,a,s,u,c,l,h,f,p,d,v,m,g,y,x,b,w,C,E,_,I,R,S,k,D,A,T,N=this;return _f(this,(function(F){switch(F.label){case 0:return r=e.width,o=e.height,i=Math.max(r,o),a=i/r,s=i/o,u=t.shape[1],c=this.config.anchors.length,l=Ue((function(){var e=t.reshape([u,u,c,N.boxEncodingSize]);return[e.slice([0,0,0,0],[u,u,c,4]),e.slice([0,0,0,4],[u,u,c,1]),N.withClassScores?Tr(e.slice([0,0,0,5],[u,u,c,N.config.classes.length]),3):hn(0)]})),h=l[0],f=l[1],p=l[2],d=[],[4,f.array()];case 1:return v=F.sent(),[4,h.array()];case 2:m=F.sent(),g=0,F.label=3;case 3:if(!(g<u))return[3,12];y=0,F.label=4;case 4:if(!(y<u))return[3,11];x=0,F.label=5;case 5:return x<c?(b=jf(v[g][y][x][0]),!n||b>n?(w=(y+jf(m[g][y][x][0]))/u*a,C=(g+jf(m[g][y][x][1]))/u*s,E=Math.exp(m[g][y][x][2])*this.config.anchors[x].x/u*a,_=Math.exp(m[g][y][x][3])*this.config.anchors[x].y/u*s,I=w-E/2,R=C-_/2,S={row:g,col:y,anchor:x},this.withClassScores?[4,this.extractPredictedClass(p,S)]:[3,7]):[3,9]):[3,10];case 6:return T=F.sent(),[3,8];case 7:T={classScore:1,label:0},F.label=8;case 8:D=(k=T).classScore,A=k.label,d.push(Cf({box:new Wf(I,R,I+E,R+_),score:b,classScore:b*D,label:A},S)),F.label=9;case 9:return x++,[3,5];case 10:return y++,[3,4];case 11:return g++,[3,3];case 12:return h.dispose(),f.dispose(),p.dispose(),[2,d]}}))}))},e.prototype.extractPredictedClass=function(t,e){return Ef(this,void 0,void 0,(function(){var n,r,o,i;return _f(this,(function(a){switch(a.label){case 0:return n=e.row,r=e.col,o=e.anchor,[4,t.array()];case 1:return i=a.sent(),[2,Array(this.config.classes.length).fill(0).map((function(t,e){return i[n][r][o][e]})).map((function(t,e){return{classScore:t,label:e}})).reduce((function(t,e){return t.classScore>e.classScore?t:e}))]}}))}))},e.DEFAULT_FILTER_SIZES=[3,16,32,64,128,256,512,1024,1024],e}(Fp),Qd=function(t){function e(e){void 0===e&&(e=!0);var n=Object.assign({},{withSeparableConvs:e,iouThreshold:.4,classes:["face"]},e?{anchors:Vd,meanRgb:Gd}:{anchors:Ud,withClassScores:!0});return t.call(this,n)||this}return wf(e,t),Object.defineProperty(e.prototype,"withSeparableConvs",{get:function(){return this.config.withSeparableConvs},enumerable:!0,configurable:!0}),Object.defineProperty(e.prototype,"anchors",{get:function(){return this.config.anchors},enumerable:!0,configurable:!0}),e.prototype.locateFaces=function(t,e){return Ef(this,void 0,void 0,(function(){return _f(this,(function(n){switch(n.label){case 0:return[4,this.detect(t,e)];case 1:return[2,n.sent().map((function(t){return new Uf(t.score,t.relativeBox,{width:t.imageWidth,height:t.imageHeight})}))]}}))}))},e.prototype.getDefaultModelName=function(){return this.withSeparableConvs?"tiny_yolov2_separable_conv_model":"tiny_yolov2_model"},e.prototype.extractParamsFromWeigthMap=function(e){return t.prototype.extractParamsFromWeigthMap.call(this,e)},e}(Jd);var Zd=function(t){function e(){var e=null!==t&&t.apply(this,arguments)||this;return e._name="TinyFaceDetectorOptions",e}return wf(e,t),e}(Yd),tv=function(){function t(){}return t.prototype.then=function(t){return Ef(this,void 0,void 0,(function(){var e;return _f(this,(function(n){switch(n.label){case 0:return e=t,[4,this.run()];case 1:return[2,e.apply(void 0,[n.sent()])]}}))}))},t.prototype.run=function(){return Ef(this,void 0,void 0,(function(){return _f(this,(function(t){throw new Error("ComposableTask - run is not implemented")}))}))},t}();function ev(t,e){var n={descriptor:e};return Object.assign({},t,n)}function nv(t,e,n,r,o){return void 0===o&&(o=function(t){return t.alignedRect}),Ef(this,void 0,void 0,(function(){var i,a,s,u,c;return _f(this,(function(l){switch(l.label){case 0:return i=t.map((function(t){return od(t)?o(t):t.detection})),(s=r)?[3,5]:e instanceof xt?[4,kp(e,i)]:[3,2];case 1:return u=l.sent(),[3,4];case 2:return[4,Sp(e,i)];case 3:u=l.sent(),l.label=4;case 4:s=u,l.label=5;case 5:return[4,n(a=s)];case 6:return c=l.sent(),a.forEach((function(t){return t instanceof xt&&t.dispose()})),[2,c]}}))}))}function rv(t,e,n,r,o){return Ef(this,void 0,void 0,(function(){var i=this;return _f(this,(function(a){return[2,nv([t],e,(function(t){return Ef(i,void 0,void 0,(function(){return _f(this,(function(e){return[2,n(t[0])]}))}))}),r,o)]}))}))}function ov(t){var e=jp(t),n=e.extractWeights,r=e.getRemainingWeights,o=[],i=function(t,e){var n=Wp(t,e),r=zp(t,e);function o(n,r){var o=fn(t(n));return e.push({paramPath:r}),o}function i(t,e,r){return void 0===r&&(r=!1),{conv1:n(t[0],t[1],3,e+"/conv1"),prelu1_alpha:o(t[1],e+"/prelu1_alpha"),conv2:n(t[1],t[2],3,e+"/conv2"),prelu2_alpha:o(t[2],e+"/prelu2_alpha"),conv3:n(t[2],t[3],r?2:3,e+"/conv3"),prelu3_alpha:o(t[3],e+"/prelu3_alpha")}}return{extractPNetParams:function(){var t=i([3,10,16,32],"pnet"),e=n(32,2,1,"pnet/conv4_1"),r=n(32,4,1,"pnet/conv4_2");return Cf(Cf({},t),{conv4_1:e,conv4_2:r})},extractRNetParams:function(){var t=i([3,28,48,64],"rnet",!0),e=r(576,128,"rnet/fc1"),n=o(128,"rnet/prelu4_alpha"),a=r(128,2,"rnet/fc2_1"),s=r(128,4,"rnet/fc2_2");return Cf(Cf({},t),{fc1:e,prelu4_alpha:n,fc2_1:a,fc2_2:s})},extractONetParams:function(){var t=i([3,32,64,64],"onet"),e=n(64,128,2,"onet/conv4"),a=o(128,"onet/prelu4_alpha"),s=r(1152,256,"onet/fc1"),u=o(256,"onet/prelu5_alpha"),c=r(256,2,"onet/fc2_1"),l=r(256,4,"onet/fc2_2"),h=r(256,10,"onet/fc2_3");return Cf(Cf({},t),{conv4:e,prelu4_alpha:a,fc1:s,prelu5_alpha:u,fc2_1:c,fc2_2:l,fc2_3:h})}}}(n,o),a=i.extractPNetParams,s=i.extractRNetParams,u=i.extractONetParams,c=a(),l=s(),h=u();if(0!==r().length)throw new Error("weights remaing after extract: "+r().length);return{params:{pnet:c,rnet:l,onet:h},paramMappings:o}}function iv(t){var e=[],n=function(t,e){var n=Hp(t,e);function r(t){return{filters:n(t+"/weights",4,t+"/filters"),bias:n(t+"/bias",1)}}function o(t){return{weights:n(t+"/weights",2),bias:n(t+"/bias",1)}}function i(t){return n(t,1)}function a(t){return{conv1:r(t+"/conv1"),prelu1_alpha:i(t+"/prelu1_alpha"),conv2:r(t+"/conv2"),prelu2_alpha:i(t+"/prelu2_alpha"),conv3:r(t+"/conv3"),prelu3_alpha:i(t+"/prelu3_alpha")}}return{extractPNetParams:function(){var t=a("pnet"),e=r("pnet/conv4_1"),n=r("pnet/conv4_2");return Cf(Cf({},t),{conv4_1:e,conv4_2:n})},extractRNetParams:function(){var t=a("rnet"),e=o("rnet/fc1"),n=i("rnet/prelu4_alpha"),r=o("rnet/fc2_1"),s=o("rnet/fc2_2");return Cf(Cf({},t),{fc1:e,prelu4_alpha:n,fc2_1:r,fc2_2:s})},extractONetParams:function(){var t=a("onet"),e=r("onet/conv4"),n=i("onet/prelu4_alpha"),s=o("onet/fc1"),u=i("onet/prelu5_alpha"),c=o("onet/fc2_1"),l=o("onet/fc2_2"),h=o("onet/fc2_3");return Cf(Cf({},t),{conv4:e,prelu4_alpha:n,fc1:s,prelu5_alpha:u,fc2_1:c,fc2_2:l,fc2_3:h})}}}(t,e),r=n.extractPNetParams,o=n.extractRNetParams,i=n.extractONetParams,a=r(),s=o(),u=i();return Lp(t,e),{params:{pnet:a,rnet:s,onet:u},paramMappings:e}}function av(t,e){var n=e[0],r=e[1];return{height:Math.floor(n*t),width:Math.floor(r*t)}}var sv=function(t){function e(e,n,r,o){return t.call(this,{left:e,top:n,right:r,bottom:o},!0)||this}return wf(e,t),e}(Lf);function uv(t){return Ue((function(){return _u(Du(t,hn(127.5)),hn(.0078125))}))}function cv(t,e){return Ue((function(){return lu(Vc(t),_u(e,ks(Vc(ks(t)))))}))}function lv(t,e,n){return void 0===n&&(n=!1),Ue((function(){var r=Bp(t,e.conv1,"valid");return r=cv(r,e.prelu1_alpha),r=cv(r=Bp(r=gc(r,n?[2,2]:[3,3],[2,2],"same"),e.conv2,"valid"),e.prelu2_alpha),r=cv(r=Bp(r=n?r:gc(r,[3,3],[2,2],"valid"),e.conv3,"valid"),e.prelu3_alpha)}))}function hv(t,e,n,r,o){o.stage1=[];var i=e.map((function(e){return Ue((function(){var n={scale:e},o=function(t,e){return Ue((function(){var n=av(e,t.shape.slice(1)),r=n.height,o=n.width,i=uv(Bl.resizeBilinear(t,[r,o]));return jc(i,[0,2,1,3])}))}(t,e),i=Date.now(),a=function(t,e){return Ue((function(){var n=lv(t,e,!0),r=Bp(n,e.conv4_1,"valid"),o=Kn(Fc(r,3),3);return{prob:Tr(Du(r,o),3),regions:Bp(n,e.conv4_2,"valid")}}))}(o,r),s=a.prob,u=a.regions;return n.pnet=Date.now()-i,{scoresTensor:fr(fr(s,3)[1])[0],regionsTensor:fr(u)[0],scale:e,statsForScale:n}}))})),a=i.map((function(t){var e=t.scoresTensor,r=t.regionsTensor,i=t.scale,a=t.statsForScale,s=function(t,e,n,r){for(var o=[],i=t.arraySync(),a=0;a<t.shape[0];a++)for(var s=0;s<t.shape[1];s++)i[a][s]>=r&&o.push(new Bf(s,a));return o.map((function(t){var r=new 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fv(t,e,n){var r=n.width,o=n.height;return Ef(this,void 0,void 0,(function(){var n,i,a,s=this;return _f(this,(function(u){switch(u.label){case 0:return n=pp(t),[4,Promise.all(e.map((function(e){return Ef(s,void 0,void 0,(function(){var r,o,i,a,s,u,c,l;return _f(this,(function(h){return r=e.padAtBorders(t.height,t.width),o=r.y,i=r.ey,a=r.x,s=r.ex,u=a-1,c=o-1,l=n.getImageData(u,c,s-u,i-c),[2,hp.isNodejs()?Cp(l):createImageBitmap(l)]}))}))})))];case 1:return i=u.sent(),a=[],i.forEach((function(t){var e=pp(wp({width:r,height:o}));e.drawImage(t,0,0,r,o);for(var n=e.getImageData(0,0,r,o).data,i=[],s=0;s<n.length;s+=4)i.push(n[s+2]),i.push(n[s+1]),i.push(n[s]);a.push(i)})),[2,a.map((function(t){return Ue((function(){return uv(jc(vn(t,[1,r,o,3]),[0,2,1,3]).toFloat())}))}))]}}))}))}function pv(t,e,n,r,o){return Ef(this,void 0,void 0,(function(){var i,a,s,u,c,l,h,f,p,d,v,m,g,y;return _f(this,(function(x){switch(x.label){case 0:return i=Date.now(),[4,fv(t,e,{width:24,height:24})];case 1:return a=x.sent(),o.stage2_extractImagePatches=Date.now()-i,i=Date.now(),s=a.map((function(t){var e=function(t,e){return Ue((function(){var n=lv(t,e),r=cv(Yp(ar(n,[n.shape[0],e.fc1.weights.shape[0]]),e.fc1),e.prelu4_alpha),o=Yp(r,e.fc2_1),i=Kn(Fc(o,1),1),a=Tr(Du(o,i),1),s=Yp(r,e.fc2_2);return{scores:fr(a,1)[1],regions:s}}))}(t,r);return t.dispose(),e})),o.stage2_rnet=Date.now()-i,u=s.length>1?Cn(s.map((function(t){return t.scores}))):s[0].scores,h=(l=Array).from,[4,u.data()];case 2:return c=h.apply(l,[x.sent()]),u.dispose(),f=c.map((function(t,e){return{score:t,idx:e}})).filter((function(t){return t.score>n})).map((function(t){return t.idx})),p=f.map((function(t){return e[t]})),d=f.map((function(t){return c[t]})),v=[],m=[],p.length>0&&(i=Date.now(),g=Gf(p,d,.7),o.stage2_nms=Date.now()-i,y=g.map((function(t){var e=s[f[t]].regions.arraySync();return new sv(e[0][0],e[0][1],e[0][2],e[0][3])})),m=g.map((function(t){return d[t]})),v=g.map((function(t,e){return p[t].calibrate(y[e])}))),s.forEach((function(t){t.regions.dispose(),t.scores.dispose()})),[2,{boxes:v,scores:m}]}}))}))}function dv(t,e,n,r,o){return Ef(this,void 0,void 0,(function(){var i,a,s,u,c,l,h,f,p,d,v,m,g,y,x;return _f(this,(function(b){switch(b.label){case 0:return i=Date.now(),[4,fv(t,e,{width:48,height:48})];case 1:return a=b.sent(),o.stage3_extractImagePatches=Date.now()-i,i=Date.now(),s=a.map((function(t){var e=function(t,e){return Ue((function(){var n=lv(t,e);n=cv(n=Bp(n=gc(n,[2,2],[2,2],"same"),e.conv4,"valid"),e.prelu4_alpha);var r=cv(Yp(ar(n,[n.shape[0],e.fc1.weights.shape[0]]),e.fc1),e.prelu5_alpha),o=Yp(r,e.fc2_1),i=Kn(Fc(o,1),1),a=Tr(Du(o,i),1),s=Yp(r,e.fc2_2),u=Yp(r,e.fc2_3);return{scores:fr(a,1)[1],regions:s,points:u}}))}(t,r);return t.dispose(),e})),o.stage3_onet=Date.now()-i,u=s.length>1?Cn(s.map((function(t){return t.scores}))):s[0].scores,h=(l=Array).from,[4,u.data()];case 2:return c=h.apply(l,[b.sent()]),u.dispose(),f=c.map((function(t,e){return{score:t,idx:e}})).filter((function(t){return t.score>n})).map((function(t){return t.idx})),p=f.map((function(t){var e=s[t].regions.arraySync();return new sv(e[0][0],e[0][1],e[0][2],e[0][3])})),d=f.map((function(t,n){return e[t].calibrate(p[n])})),v=f.map((function(t){return c[t]})),m=[],g=[],y=[],d.length>0&&(i=Date.now(),x=Gf(d,v,.7,!1),o.stage3_nms=Date.now()-i,m=x.map((function(t){return d[t]})),g=x.map((function(t){return v[t]})),y=x.map((function(t,e){return Array(5).fill(0).map((function(n,r){var o=s[t].points.arraySync();return new Bf(o[0][r]*(m[e].width+1)+m[e].left,o[0][r+5]*(m[e].height+1)+m[e].top)}))}))),s.forEach((function(t){t.regions.dispose(),t.scores.dispose(),t.points.dispose()})),[2,{boxes:m,scores:g,points:y}]}}))}))}var vv=function(t){function e(){return t.call(this,"Mtcnn")||this}return wf(e,t),e.prototype.load=function(e){return Ef(this,void 0,void 0,(function(){return _f(this,(function(n){return console.warn("mtcnn is deprecated and will be removed soon"),[2,t.prototype.load.call(this,e)]}))}))},e.prototype.loadFromDisk=function(e){return Ef(this,void 0,void 0,(function(){return _f(this,(function(n){return console.warn("mtcnn is deprecated and will be removed soon"),[2,t.prototype.loadFromDisk.call(this,e)]}))}))},e.prototype.forwardInput=function(t,e){return void 0===e&&(e={}),Ef(this,void 0,void 0,(function(){var n,r,o,i,a,s,u,c,l,h,f,p,d,v,m,g,y,x,b,w,C;return _f(this,(function(E){switch(E.label){case 0:if(!(n=this.params))throw new Error("Mtcnn - load model before inference");if(!(r=t.canvases[0]))throw new Error("Mtcnn - inputCanvas is not defined, note that passing tensors into Mtcnn.forwardInput is not supported yet.");return o={},i=Date.now(),a=Ue((function(){return t=Kn(nf.fromPixels(r)).toFloat(),Ue((function(){return cr(fr(t,3).reverse(),3)}));var t})),s=function(t){return a.dispose(),o.total=Date.now()-i,t},u=a.shape.slice(1),c=u[0],l=u[1],h=new Ad(e),f=h.minFaceSize,p=h.scaleFactor,d=h.maxNumScales,v=h.scoreThresholds,m=h.scaleSteps,g=(m||function(t,e,n){for(var r=n[0],o=n[1],i=12/t,a=[],s=Math.min(r,o)*i,u=0;s>=12;)a.push(i*Math.pow(e,u)),s*=e,u+=1;return a}(f,p,[c,l])).filter((function(t){var e=av(t,[c,l]);return Math.min(e.width,e.height)>12})).slice(0,d),o.scales=g,o.pyramid=g.map((function(t){return av(t,[c,l])})),y=Date.now(),[4,hv(a,g,v[0],n.pnet,o)];case 1:return x=E.sent(),o.total_stage1=Date.now()-y,x.boxes.length?(o.stage2_numInputBoxes=x.boxes.length,y=Date.now(),[4,pv(r,x.boxes,v[1],n.rnet,o)]):[2,s({results:[],stats:o})];case 2:return b=E.sent(),o.total_stage2=Date.now()-y,b.boxes.length?(o.stage3_numInputBoxes=b.boxes.length,y=Date.now(),[4,dv(r,b.boxes,v[2],n.onet,o)]):[2,s({results:[],stats:o})];case 3:return w=E.sent(),o.total_stage3=Date.now()-y,C=w.boxes.map((function(t,e){return id(tp({},new Uf(w.scores[e],new qf(t.left/l,t.top/c,t.width/l,t.height/c),{height:c,width:l})),new Xf(w.points[e].map((function(e){return e.sub(new Bf(t.left,t.top)).div(new Bf(t.width,t.height))})),{width:t.width,height:t.height}))})),[2,s({results:C,stats:o})]}}))}))},e.prototype.forward=function(t,e){return void 0===e&&(e={}),Ef(this,void 0,void 0,(function(){var n;return _f(this,(function(r){switch(r.label){case 0:return n=this.forwardInput,[4,Rp(t)];case 1:return[4,n.apply(this,[r.sent(),e])];case 2:return[2,r.sent().results]}}))}))},e.prototype.forwardWithStats=function(t,e){return void 0===e&&(e={}),Ef(this,void 0,void 0,(function(){var n;return _f(this,(function(r){switch(r.label){case 0:return n=this.forwardInput,[4,Rp(t)];case 1:return[2,n.apply(this,[r.sent(),e])]}}))}))},e.prototype.getDefaultModelName=function(){return"mtcnn_model"},e.prototype.extractParamsFromWeigthMap=function(t){return iv(t)},e.prototype.extractParams=function(t){return ov(t)},e}(Fp),mv=[new Bf(1.603231,2.094468),new Bf(6.041143,7.080126),new Bf(2.882459,3.518061),new Bf(4.266906,5.178857),new Bf(9.041765,10.66308)],gv=[117.001,114.697,97.404],yv=function(t){function e(){var e={withSeparableConvs:!0,iouThreshold:.4,classes:["face"],anchors:mv,meanRgb:gv,isFirstLayerConv2d:!0,filterSizes:[3,16,32,64,128,256,512]};return t.call(this,e)||this}return wf(e,t),Object.defineProperty(e.prototype,"anchors",{get:function(){return this.config.anchors},enumerable:!0,configurable:!0}),e.prototype.locateFaces=function(t,e){return Ef(this,void 0,void 0,(function(){return _f(this,(function(n){switch(n.label){case 0:return[4,this.detect(t,e)];case 1:return[2,n.sent().map((function(t){return new Uf(t.score,t.relativeBox,{width:t.imageWidth,height:t.imageHeight})}))]}}))}))},e.prototype.getDefaultModelName=function(){return"tiny_face_detector_model"},e.prototype.extractParamsFromWeigthMap=function(e){return t.prototype.extractParamsFromWeigthMap.call(this,e)},e}(Jd),xv={ssdMobilenetv1:new Wd,tinyFaceDetector:new yv,tinyYolov2:new Qd,mtcnn:new vv,faceLandmark68Net:new gd,faceLandmark68TinyNet:new xd,faceRecognitionNet:new kd,faceExpressionNet:new ed,ageGenderNet:new vd},bv=function(t){return xv.tinyFaceDetector.load(t)},wv=function(t){return xv.faceLandmark68Net.load(t)},Cv=function(t){return xv.faceRecognitionNet.load(t)};function Ev(t,e){var n={age:e};return Object.assign({},t,n)}var _v=function(t){function e(e,n,r){var o=t.call(this)||this;return o.parentTask=e,o.input=n,o.extractedFaces=r,o}return wf(e,t),e}(tv),Iv=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return wf(e,t),e.prototype.run=function(){return Ef(this,void 0,void 0,(function(){var t,e,n=this;return _f(this,(function(r){switch(r.label){case 0:return[4,this.parentTask];case 1:return[4,nv(t=r.sent(),this.input,(function(t){return Ef(n,void 0,void 0,(function(){return _f(this,(function(e){switch(e.label){case 0:return[4,Promise.all(t.map((function(t){return xv.faceExpressionNet.predictExpressions(t)})))];case 1:return[2,e.sent()]}}))}))}),this.extractedFaces)];case 2:return e=r.sent(),[2,t.map((function(t,n){return nd(t,e[n])}))]}}))}))},e.prototype.withAgeAndGender=function(){return new Av(this,this.input)},e}(_v),Rv=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return wf(e,t),e.prototype.run=function(){return Ef(this,void 0,void 0,(function(){var t,e;return _f(this,(function(n){switch(n.label){case 0:return[4,this.parentTask];case 1:return(t=n.sent())?[4,rv(t,this.input,(function(t){return xv.faceExpressionNet.predictExpressions(t)}),this.extractedFaces)]:[2];case 2:return e=n.sent(),[2,nd(t,e)]}}))}))},e.prototype.withAgeAndGender=function(){return new Tv(this,this.input)},e}(_v),Sv=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return wf(e,t),e.prototype.withAgeAndGender=function(){return new Nv(this,this.input)},e.prototype.withFaceDescriptors=function(){return new Ov(this,this.input)},e}(Iv),kv=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return wf(e,t),e.prototype.withAgeAndGender=function(){return new Fv(this,this.input)},e.prototype.withFaceDescriptor=function(){return new Pv(this,this.input)},e}(Rv),Dv=function(t){function e(e,n,r){var o=t.call(this)||this;return o.parentTask=e,o.input=n,o.extractedFaces=r,o}return wf(e,t),e}(tv),Av=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return wf(e,t),e.prototype.run=function(){return Ef(this,void 0,void 0,(function(){var t,e,n=this;return _f(this,(function(r){switch(r.label){case 0:return[4,this.parentTask];case 1:return[4,nv(t=r.sent(),this.input,(function(t){return Ef(n,void 0,void 0,(function(){return _f(this,(function(e){switch(e.label){case 0:return[4,Promise.all(t.map((function(t){return xv.ageGenderNet.predictAgeAndGender(t)})))];case 1:return[2,e.sent()]}}))}))}),this.extractedFaces)];case 2:return e=r.sent(),[2,t.map((function(t,n){var r=e[n],o=r.age;return Ev(Dd(t,r.gender,r.genderProbability),o)}))]}}))}))},e.prototype.withFaceExpressions=function(){return new Iv(this,this.input)},e}(Dv),Tv=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return wf(e,t),e.prototype.run=function(){return Ef(this,void 0,void 0,(function(){var t,e,n,r,o;return _f(this,(function(i){switch(i.label){case 0:return[4,this.parentTask];case 1:return(t=i.sent())?[4,rv(t,this.input,(function(t){return xv.ageGenderNet.predictAgeAndGender(t)}),this.extractedFaces)]:[2];case 2:return e=i.sent(),n=e.age,r=e.gender,o=e.genderProbability,[2,Ev(Dd(t,r,o),n)]}}))}))},e.prototype.withFaceExpressions=function(){return new Rv(this,this.input)},e}(Dv),Nv=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return wf(e,t),e.prototype.withFaceExpressions=function(){return new Sv(this,this.input)},e.prototype.withFaceDescriptors=function(){return new Ov(this,this.input)},e}(Av),Fv=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return wf(e,t),e.prototype.withFaceExpressions=function(){return new kv(this,this.input)},e.prototype.withFaceDescriptor=function(){return new Pv(this,this.input)},e}(Tv),Mv=function(t){function e(e,n){var r=t.call(this)||this;return r.parentTask=e,r.input=n,r}return wf(e,t),e}(tv),Ov=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return wf(e,t),e.prototype.run=function(){return Ef(this,void 0,void 0,(function(){var t;return _f(this,(function(e){switch(e.label){case 0:return[4,this.parentTask];case 1:return[4,nv(t=e.sent(),this.input,(function(t){return Promise.all(t.map((function(t){return xv.faceRecognitionNet.computeFaceDescriptor(t)})))}),null,(function(t){return t.landmarks.align(null,{useDlibAlignment:!0})}))];case 2:return[2,e.sent().map((function(e,n){return ev(t[n],e)}))]}}))}))},e.prototype.withFaceExpressions=function(){return new Sv(this,this.input)},e.prototype.withAgeAndGender=function(){return new Nv(this,this.input)},e}(Mv),Pv=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return wf(e,t),e.prototype.run=function(){return Ef(this,void 0,void 0,(function(){var t,e;return _f(this,(function(n){switch(n.label){case 0:return[4,this.parentTask];case 1:return(t=n.sent())?[4,rv(t,this.input,(function(t){return xv.faceRecognitionNet.computeFaceDescriptor(t)}),null,(function(t){return t.landmarks.align(null,{useDlibAlignment:!0})}))]:[2];case 2:return e=n.sent(),[2,ev(t,e)]}}))}))},e.prototype.withFaceExpressions=function(){return new kv(this,this.input)},e.prototype.withAgeAndGender=function(){return new Fv(this,this.input)},e}(Mv),Bv=function(t){function e(e,n,r){var o=t.call(this)||this;return o.parentTask=e,o.input=n,o.useTinyLandmarkNet=r,o}return wf(e,t),Object.defineProperty(e.prototype,"landmarkNet",{get:function(){return this.useTinyLandmarkNet?xv.faceLandmark68TinyNet:xv.faceLandmark68Net},enumerable:!0,configurable:!0}),e}(tv),Lv=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return wf(e,t),e.prototype.run=function(){return Ef(this,void 0,void 0,(function(){var t,e,n,r,o,i=this;return _f(this,(function(a){switch(a.label){case 0:return[4,this.parentTask];case 1:return t=a.sent(),e=t.map((function(t){return t.detection})),this.input instanceof xt?[4,kp(this.input,e)]:[3,3];case 2:return r=a.sent(),[3,5];case 3:return[4,Sp(this.input,e)];case 4:r=a.sent(),a.label=5;case 5:return n=r,[4,Promise.all(n.map((function(t){return i.landmarkNet.detectLandmarks(t)})))];case 6:return o=a.sent(),n.forEach((function(t){return t instanceof xt&&t.dispose()})),[2,t.map((function(t,e){return id(t,o[e])}))]}}))}))},e.prototype.withFaceExpressions=function(){return new Sv(this,this.input)},e.prototype.withAgeAndGender=function(){return new Nv(this,this.input)},e.prototype.withFaceDescriptors=function(){return new Ov(this,this.input)},e}(Bv),Wv=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return wf(e,t),e.prototype.run=function(){return Ef(this,void 0,void 0,(function(){var t,e,n,r,o;return _f(this,(function(i){switch(i.label){case 0:return[4,this.parentTask];case 1:return(t=i.sent())?(e=t.detection,this.input instanceof xt?[4,kp(this.input,[e])]:[3,3]):[2];case 2:return r=i.sent(),[3,5];case 3:return[4,Sp(this.input,[e])];case 4:r=i.sent(),i.label=5;case 5:return n=r,[4,this.landmarkNet.detectLandmarks(n[0])];case 6:return o=i.sent(),n.forEach((function(t){return t instanceof xt&&t.dispose()})),[2,id(t,o)]}}))}))},e.prototype.withFaceExpressions=function(){return new kv(this,this.input)},e.prototype.withAgeAndGender=function(){return new Fv(this,this.input)},e.prototype.withFaceDescriptor=function(){return new Pv(this,this.input)},e}(Bv),zv=function(t){function e(e,n){void 0===n&&(n=new Ld);var r=t.call(this)||this;return r.input=e,r.options=n,r}return wf(e,t),e}(tv),Uv=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return wf(e,t),e.prototype.run=function(){return Ef(this,void 0,void 0,(function(){var t,e,n,r;return _f(this,(function(o){switch(o.label){case 0:return e=(t=this).input,(n=t.options)instanceof Ad?[4,xv.mtcnn.forward(e,n)]:[3,2];case 1:return[2,o.sent().map((function(t){return t.detection}))];case 2:if(r=n instanceof Zd?function(t){return xv.tinyFaceDetector.locateFaces(t,n)}:n instanceof Ld?function(t){return xv.ssdMobilenetv1.locateFaces(t,n)}:n instanceof Yd?function(t){return xv.tinyYolov2.locateFaces(t,n)}:null,!r)throw new Error("detectFaces - expected options to be instance of TinyFaceDetectorOptions | SsdMobilenetv1Options | MtcnnOptions | TinyYolov2Options");return[2,r(e)]}}))}))},e.prototype.runAndExtendWithFaceDetections=function(){var t=this;return new Promise((function(e){return Ef(t,void 0,void 0,(function(){var t;return _f(this,(function(n){switch(n.label){case 0:return[4,this.run()];case 1:return t=n.sent(),[2,e(t.map((function(t){return tp({},t)})))]}}))}))}))},e.prototype.withFaceLandmarks=function(t){return void 0===t&&(t=!1),new Lv(this.runAndExtendWithFaceDetections(),this.input,t)},e.prototype.withFaceExpressions=function(){return new Iv(this.runAndExtendWithFaceDetections(),this.input)},e.prototype.withAgeAndGender=function(){return new Av(this.runAndExtendWithFaceDetections(),this.input)},e}(zv),Vv=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return wf(e,t),e.prototype.run=function(){return Ef(this,void 0,void 0,(function(){var t,e;return _f(this,(function(n){switch(n.label){case 0:return[4,new Uv(this.input,this.options)];case 1:return t=n.sent(),e=t[0],t.forEach((function(t){t.score>e.score&&(e=t)})),[2,e]}}))}))},e.prototype.runAndExtendWithFaceDetection=function(){var t=this;return new Promise((function(e){return Ef(t,void 0,void 0,(function(){var t;return _f(this,(function(n){switch(n.label){case 0:return[4,this.run()];case 1:return t=n.sent(),[2,e(t?tp({},t):void 0)]}}))}))}))},e.prototype.withFaceLandmarks=function(t){return void 0===t&&(t=!1),new Wv(this.runAndExtendWithFaceDetection(),this.input,t)},e.prototype.withFaceExpressions=function(){return new Rv(this.runAndExtendWithFaceDetection(),this.input)},e.prototype.withAgeAndGender=function(){return new Tv(this.runAndExtendWithFaceDetection(),this.input)},e}(zv);function Gv(t,e){return void 0===e&&(e=new Ld),new Vv(t,e)}var Hv=function(){function t(t,e){void 0===e&&(e=.6),this._distanceThreshold=e;var n=Array.isArray(t)?t:[t];if(!n.length)throw new Error("FaceRecognizer.constructor - expected atleast one input");var r=1,o=function(){return"person "+r++};this._labeledDescriptors=n.map((function(t){if(t instanceof Qf)return t;if(t instanceof Float32Array)return new Qf(o(),[t]);if(t.descriptor&&t.descriptor instanceof Float32Array)return new Qf(o(),[t.descriptor]);throw new Error("FaceRecognizer.constructor - expected inputs to be of type LabeledFaceDescriptors | WithFaceDescriptor<any> | Float32Array | Array<LabeledFaceDescriptors | WithFaceDescriptor<any> | Float32Array>")}))}return Object.defineProperty(t.prototype,"labeledDescriptors",{get:function(){return this._labeledDescriptors},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"distanceThreshold",{get:function(){return this._distanceThreshold},enumerable:!0,configurable:!0}),t.prototype.computeMeanDistance=function(t,e){return e.map((function(e){return function(t,e){if(t.length!==e.length)throw new Error("euclideanDistance: arr1.length !== arr2.length");var n=Array.from(t),r=Array.from(e);return Math.sqrt(n.map((function(t,e){return t-r[e]})).reduce((function(t,e){return t+Math.pow(e,2)}),0))}(e,t)})).reduce((function(t,e){return t+e}),0)/(e.length||1)},t.prototype.matchDescriptor=function(t){var e=this;return this.labeledDescriptors.map((function(n){var r=n.descriptors,o=n.label;return new Yf(o,e.computeMeanDistance(t,r))})).reduce((function(t,e){return t.distance<e.distance?t:e}))},t.prototype.findBestMatch=function(t){var e=this.matchDescriptor(t);return e.distance<this.distanceThreshold?e:new Yf("unknown",e.distance)},t.prototype.toJSON=function(){return{distanceThreshold:this.distanceThreshold,labeledDescriptors:this.labeledDescriptors.map((function(t){return t.toJSON()}))}},t.fromJSON=function(e){var n=e.labeledDescriptors.map((function(t){return Qf.fromJSON(t)}));return new t(n,e.distanceThreshold)},t}();function jv(t,e){var n=new Rf(e.width,e.height),r=n.width,o=n.height;if(r<=0||o<=0)throw new Error("resizeResults - invalid dimensions: "+JSON.stringify({width:r,height:o}));if(Array.isArray(t))return t.map((function(t){return jv(t,{width:r,height:o})}));if(od(t)){var i=t.detection.forSize(r,o),a=t.unshiftedLandmarks.forSize(i.box.width,i.box.height);return id(tp(t,i),a)}return Zf(t)?tp(t,t.detection.forSize(r,o)):t instanceof Kf||t instanceof Uf?t.forSize(r,o):t}}}]);