face-api.min.js

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this.throwIfDisposed(),[2,ht().read(this.dataId)]})})},o.prototype.dataSync=function(){return this.throwIfDisposed(),ht().readSync(this.dataId)},o.prototype.dispose=function(){this.isDisposed||(ht().disposeTensor(this),this.isDisposedInternal=!0)},Object.defineProperty(o.prototype,"isDisposed",{get:function(){return this.isDisposedInternal},enumerable:!0,configurable:!0}),o.prototype.throwIfDisposed=function(){if(this.isDisposed)throw new Error("Tensor is disposed.")},o.prototype.toFloat=function(){return this.asType("float32")},o.prototype.toInt=function(){return this.asType("int32")},o.prototype.toBool=function(){return this.asType("bool")},o.prototype.print=function(t){return void 0===t&&(t=!1),pt.print(this,t)},o.prototype.reshape=function(t){return this.throwIfDisposed(),pt.reshape(this,t)},o.prototype.reshapeAs=function(t){return this.throwIfDisposed(),this.reshape(t.shape)},o.prototype.expandDims=function(t){return void 0===t&&(t=0),pt.expandDims(this,t)},o.prototype.cumsum=function(t,e,n){return void 0===t&&(t=0),void 0===e&&(e=!1),void 0===n&&(n=!1),pt.cumsum(this,t,e,n)},o.prototype.squeeze=function(t){return this.throwIfDisposed(),pt.squeeze(this,t)},o.prototype.clone=function(){return this.throwIfDisposed(),pt.clone(this)},o.prototype.oneHot=function(t,e,n){return this.throwIfDisposed(),pt.oneHot(this,t,e,n)},o.prototype.toString=function(t){return void 0===t&&(t=!1),at(this.dataSync(),this.shape,this.dtype,t)},o.prototype.tile=function(t){return this.throwIfDisposed(),pt.tile(this,t)},o.prototype.gather=function(t,e){return void 0===e&&(e=0),this.throwIfDisposed(),pt.gather(this,t,e)},o.prototype.matMul=function(t,e,n){return void 0===e&&(e=!1),void 0===n&&(n=!1),this.throwIfDisposed(),pt.matMul(this,t,e,n)},o.prototype.dot=function(t){return this.throwIfDisposed(),pt.dot(this,t)},o.prototype.norm=function(t,e,n){return void 0===t&&(t="euclidean"),void 0===e&&(e=null),void 0===n&&(n=!1),this.throwIfDisposed(),pt.norm(this,t,e,n)},o.prototype.slice=function(t,e){return this.throwIfDisposed(),pt.slice(this,t,e)},o.prototype.reverse=function(t){return this.throwIfDisposed(),pt.reverse(this,t)},o.prototype.concat=function(t,e){return void 0===e&&(e=0),this.throwIfDisposed(),t instanceof o&&(t=[t]),pt.concat([this].concat(t),e)},o.prototype.split=function(t,e){return void 0===e&&(e=0),this.throwIfDisposed(),pt.split(this,t,e)},o.prototype.stack=function(t,e){return void 0===e&&(e=0),pt.stack([this,t],e)},o.prototype.unstack=function(t){return void 0===t&&(t=0),pt.unstack(this,t)},o.prototype.pad=function(t,e){return void 0===e&&(e=0),pt.pad(this,t,e)},o.prototype.batchNormalization=function(t,e,n,r,o){return void 0===n&&(n=.001),ft("tf.batchNormalization() is going away. Use tf.batchNorm() instead, and note the positional argument change of scale, offset, and varianceEpsilon"),this.batchNorm(t,e,o,r,n)},o.prototype.batchNorm=function(t,e,n,r,o){return void 0===o&&(o=.001),this.throwIfDisposed(),pt.batchNorm(this,t,e,n,r,o)},o.prototype.all=function(t,e){return void 0===t&&(t=null),void 0===e&&(e=!1),this.throwIfDisposed(),pt.all(this,t,e)},o.prototype.any=function(t,e){return void 0===t&&(t=null),void 0===e&&(e=!1),this.throwIfDisposed(),pt.any(this,t,e)},o.prototype.logSumExp=function(t,e){return void 0===t&&(t=null),void 0===e&&(e=!1),this.throwIfDisposed(),pt.logSumExp(this,t,e)},o.prototype.sum=function(t,e){return void 0===t&&(t=null),void 0===e&&(e=!1),this.throwIfDisposed(),pt.sum(this,t,e)},o.prototype.prod=function(t,e){return void 0===t&&(t=null),void 0===e&&(e=!1),this.throwIfDisposed(),pt.prod(this,t,e)},o.prototype.mean=function(t,e){return void 0===t&&(t=null),void 0===e&&(e=!1),this.throwIfDisposed(),pt.mean(this,t,e)},o.prototype.min=function(t,e){return void 0===t&&(t=null),void 0===e&&(e=!1),this.throwIfDisposed(),pt.min(this,t,e)},o.prototype.max=function(t,e){return void 0===t&&(t=null),void 0===e&&(e=!1),this.throwIfDisposed(),pt.max(this,t,e)},o.prototype.argMin=function(t){return void 0===t&&(t=null),this.throwIfDisposed(),pt.argMin(this,t)},o.prototype.argMax=function(t){return void 0===t&&(t=null),this.throwIfDisposed(),pt.argMax(this,t)},o.prototype.cast=function(t){return this.throwIfDisposed(),pt.cast(this,t)},o.prototype.add=function(t){return this.throwIfDisposed(),pt.add(this,t)},o.prototype.addStrict=function(t){return this.throwIfDisposed(),pt.addStrict(this,t)},o.prototype.atan2=function(t){return this.throwIfDisposed(),pt.atan2(this,t)},o.prototype.sub=function(t){return this.throwIfDisposed(),pt.sub(this,t)},o.prototype.subStrict=function(t){return this.throwIfDisposed(),pt.subStrict(this,t)},o.prototype.pow=function(t){return this.throwIfDisposed(),pt.pow(this,t)},o.prototype.powStrict=function(t){return this.throwIfDisposed(),pt.powStrict(this,t)},o.prototype.mul=function(t){return this.throwIfDisposed(),pt.mul(this,t)},o.prototype.mulStrict=function(t){return this.throwIfDisposed(),pt.mulStrict(this,t)},o.prototype.div=function(t){return this.throwIfDisposed(),pt.div(this,t)},o.prototype.floorDiv=function(t){return this.throwIfDisposed(),pt.floorDiv(this,t)},o.prototype.divStrict=function(t){return this.throwIfDisposed(),pt.divStrict(this,t)},o.prototype.minimum=function(t){return this.throwIfDisposed(),pt.minimum(this,t)},o.prototype.minimumStrict=function(t){return this.throwIfDisposed(),pt.minimumStrict(this,t)},o.prototype.maximum=function(t){return this.throwIfDisposed(),pt.maximum(this,t)},o.prototype.maximumStrict=function(t){return this.throwIfDisposed(),pt.maximumStrict(this,t)},o.prototype.mod=function(t){return this.throwIfDisposed(),pt.mod(this,t)},o.prototype.modStrict=function(t){return this.throwIfDisposed(),pt.modStrict(this,t)},o.prototype.squaredDifference=function(t){return this.throwIfDisposed(),pt.squaredDifference(this,t)},o.prototype.squaredDifferenceStrict=function(t){return this.throwIfDisposed(),pt.squaredDifferenceStrict(this,t)},o.prototype.transpose=function(t){return this.throwIfDisposed(),pt.transpose(this,t)},o.prototype.notEqual=function(t){return this.throwIfDisposed(),pt.notEqual(this,t)},o.prototype.notEqualStrict=function(t){return this.throwIfDisposed(),pt.notEqualStrict(this,t)},o.prototype.less=function(t){return this.throwIfDisposed(),pt.less(this,t)},o.prototype.lessStrict=function(t){return this.throwIfDisposed(),pt.lessStrict(this,t)},o.prototype.equal=function(t){return this.throwIfDisposed(),pt.equal(this,t)},o.prototype.equalStrict=function(t){return this.throwIfDisposed(),pt.equalStrict(this,t)},o.prototype.lessEqual=function(t){return this.throwIfDisposed(),pt.lessEqual(this,t)},o.prototype.lessEqualStrict=function(t){return this.throwIfDisposed(),pt.lessEqualStrict(this,t)},o.prototype.greater=function(t){return this.throwIfDisposed(),pt.greater(this,t)},o.prototype.greaterStrict=function(t){return this.throwIfDisposed(),pt.greaterStrict(this,t)},o.prototype.greaterEqual=function(t){return this.throwIfDisposed(),pt.greaterEqual(this,t)},o.prototype.greaterEqualStrict=function(t){return this.throwIfDisposed(),pt.greaterEqualStrict(this,t)},o.prototype.logicalAnd=function(t){return this.throwIfDisposed(),pt.logicalAnd(this,t)},o.prototype.logicalOr=function(t){return this.throwIfDisposed(),pt.logicalOr(this,t)},o.prototype.logicalNot=function(){return this.throwIfDisposed(),pt.logicalNot(this)},o.prototype.logicalXor=function(t){return this.throwIfDisposed(),pt.logicalXor(this,t)},o.prototype.where=function(t,e){return this.throwIfDisposed(),pt.where(t,this,e)},o.prototype.neg=function(){return this.throwIfDisposed(),pt.neg(this)},o.prototype.ceil=function(){return this.throwIfDisposed(),pt.ceil(this)},o.prototype.floor=function(){return this.throwIfDisposed(),pt.floor(this)},o.prototype.sign=function(){return this.throwIfDisposed(),pt.sign(this)},o.prototype.exp=function(){return this.throwIfDisposed(),pt.exp(this)},o.prototype.expm1=function(){return this.throwIfDisposed(),pt.expm1(this)},o.prototype.log=function(){return this.throwIfDisposed(),pt.log(this)},o.prototype.log1p=function(){return this.throwIfDisposed(),pt.log1p(this)},o.prototype.sqrt=function(){return this.throwIfDisposed(),pt.sqrt(this)},o.prototype.rsqrt=function(){return this.throwIfDisposed(),pt.rsqrt(this)},o.prototype.square=function(){return this.throwIfDisposed(),pt.square(this)},o.prototype.reciprocal=function(){return this.throwIfDisposed(),pt.reciprocal(this)},o.prototype.abs=function(){return this.throwIfDisposed(),pt.abs(this)},o.prototype.clipByValue=function(t,e){return this.throwIfDisposed(),pt.clipByValue(this,t,e)},o.prototype.relu=function(){return this.throwIfDisposed(),pt.relu(this)},o.prototype.elu=function(){return this.throwIfDisposed(),pt.elu(this)},o.prototype.selu=function(){return this.throwIfDisposed(),pt.selu(this)},o.prototype.leakyRelu=function(t){return void 0===t&&(t=.2),this.throwIfDisposed(),pt.leakyRelu(this,t)},o.prototype.prelu=function(t){return this.throwIfDisposed(),pt.prelu(this,t)},o.prototype.sigmoid=function(){return this.throwIfDisposed(),pt.sigmoid(this)},o.prototype.logSigmoid=function(){return this.throwIfDisposed(),pt.logSigmoid(this)},o.prototype.softplus=function(){return this.throwIfDisposed(),pt.softplus(this)},o.prototype.zerosLike=function(){return this.throwIfDisposed(),pt.zerosLike(this)},o.prototype.onesLike=function(){return this.throwIfDisposed(),pt.onesLike(this)},o.prototype.sin=function(){return this.throwIfDisposed(),pt.sin(this)},o.prototype.cos=function(){return this.throwIfDisposed(),pt.cos(this)},o.prototype.tan=function(){return this.throwIfDisposed(),pt.tan(this)},o.prototype.asin=function(){return this.throwIfDisposed(),pt.asin(this)},o.prototype.acos=function(){return this.throwIfDisposed(),pt.acos(this)},o.prototype.atan=function(){return this.throwIfDisposed(),pt.atan(this)},o.prototype.sinh=function(){return this.throwIfDisposed(),pt.sinh(this)},o.prototype.cosh=function(){return this.throwIfDisposed(),pt.cosh(this)},o.prototype.tanh=function(){return this.throwIfDisposed(),pt.tanh(this)},o.prototype.asinh=function(){return this.throwIfDisposed(),pt.asinh(this)},o.prototype.acosh=function(){return this.throwIfDisposed(),pt.acosh(this)},o.prototype.atanh=function(){return this.throwIfDisposed(),pt.atanh(this)},o.prototype.erf=function(){return this.throwIfDisposed(),pt.erf(this)},o.prototype.round=function(){return this.throwIfDisposed(),pt.round(this)},o.prototype.step=function(t){return void 0===t&&(t=0),this.throwIfDisposed(),pt.step(this,t)},o.prototype.softmax=function(t){return void 0===t&&(t=-1),this.throwIfDisposed(),pt.softmax(this,t)},o.prototype.logSoftmax=function(t){return void 0===t&&(t=-1),this.throwIfDisposed(),pt.logSoftmax(this,t)},o.prototype.resizeBilinear=function(t,e){return void 0===e&&(e=!1),this.throwIfDisposed(),pt.image.resizeBilinear(this,t,e)},o.prototype.resizeNearestNeighbor=function(t,e){return void 0===e&&(e=!1),this.throwIfDisposed(),pt.image.resizeNearestNeighbor(this,t,e)},o.prototype.conv1d=function(t,e,n,r,o,i){return void 0===r&&(r="NWC"),void 0===o&&(o=1),this.throwIfDisposed(),pt.conv1d(this,t,e,n,r,o,i)},o.prototype.conv2d=function(t,e,n,r,o,i){return void 0===r&&(r="NHWC"),void 0===o&&(o=[1,1]),this.throwIfDisposed(),pt.conv2d(this,t,e,n,r,o,i)},o.prototype.conv2dTranspose=function(t,e,n,r,o){return this.throwIfDisposed(),pt.conv2dTranspose(this,t,e,n,r,o)},o.prototype.depthwiseConv2D=function(t,e,n,r,o,i){return void 0===r&&(r="NHWC"),void 0===o&&(o=[1,1]),this.throwIfDisposed(),pt.depthwiseConv2d(this,t,e,n,r,o,i)},o.prototype.separableConv2d=function(t,e,n,r,o,i){return void 0===o&&(o=[1,1]),void 0===i&&(i="NHWC"),this.throwIfDisposed(),pt.separableConv2d(this,t,e,n,r,o,i)},o.prototype.avgPool=function(t,e,n,r){return this.throwIfDisposed(),pt.avgPool(this,t,e,n,r)},o.prototype.maxPool=function(t,e,n,r){return this.throwIfDisposed(),pt.maxPool(this,t,e,n,r)},o.prototype.localResponseNormalization=function(t,e,n,r){return void 0===t&&(t=5),void 0===e&&(e=1),void 0===n&&(n=1),void 0===r&&(r=.5),pt.localResponseNormalization(this,t,e,n,r)},o.prototype.pool=function(t,e,n,r,o){return this.throwIfDisposed(),pt.pool(this,t,e,n,r,o)},o.prototype.variable=function(t,e,n){return void 0===t&&(t=!0),this.throwIfDisposed(),vt.variable(this,t,e,n)},o.prototype.unsortedSegmentSum=function(t,e){return this.throwIfDisposed(),pt.unsortedSegmentSum(this,t,e)},o.prototype.batchToSpaceND=function(t,e){return this.throwIfDisposed(),pt.batchToSpaceND(this,t,e)},o.prototype.spaceToBatchND=function(t,e){return this.throwIfDisposed(),pt.spaceToBatchND(this,t,e)},o.prototype.topk=function(t,e){return void 0===t&&(t=1),void 0===e&&(e=!0),this.throwIfDisposed(),pt.topk(this,t,e)},o.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(),pt.stridedSlice(this,t,e,n,r,o,i,a,s)},o.prototype.depthToSpace=function(t,e){return this.throwIfDisposed(),pt.depthToSpace(this,t,e)},o.prototype.fft=function(){return this.throwIfDisposed(),pt.spectral.fft(this)},o.prototype.ifft=function(){return this.throwIfDisposed(),pt.spectral.ifft(this)},o.prototype.rfft=function(){return this.throwIfDisposed(),pt.spectral.rfft(this)},o.prototype.irfft=function(){return this.throwIfDisposed(),pt.spectral.irfft(this)},o}();Object.defineProperty(dt,Symbol.hasInstance,{value:function(t){return!!t&&null!=t.dataId&&null!=t.shape&&null!=t.dtype}});var vt=function(o){function i(t,e,n){void 0===e&&(e=!0);var r=o.call(this,t.shape,t.dtype,null,t.dataId)||this;r.trainable=e,r.name=n,null==r.name&&(r.name=ht().nextVariableId().toString());try{ht().registerVariable(r)}catch(t){throw ht().disposeTensor(r),t}return r}return s(i,o),i.variable=function(t,e,n,r){return void 0===e&&(e=!0),null!=r&&r!==t.dtype&&(t=t.asType(r)),new i(t,e,n)},i.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(!E(t.shape,this.shape))throw new Error("shape of the new value ("+t.shape+") and previous value ("+this.shape+") must match");ht().disposeTensor(this),this.dataId=t.dataId,ht().registerTensor(this)},i}(dt);Object.defineProperty(vt,Symbol.hasInstance,{value:function(t){return t instanceof dt&&null!=t.assign&&t.assign instanceof Function}});var mt,gt,yt,xt,wt,bt,Et,Ct,_t,St,Rt=vt.variable;(St=mt||(mt={})).R0="R0",St.R1="R1",St.R2="R2",St.R3="R3",St.R4="R4",St.R5="R5",St.R6="R6",(_t=gt||(gt={})).float32="float32",_t.int32="int32",_t.bool="int32",_t.complex64="complex64",(Ct=yt||(yt={})).float32="float32",Ct.int32="int32",Ct.bool="bool",Ct.complex64="complex64",(Et=xt||(xt={})).float32="float32",Et.int32="float32",Et.bool="float32",Et.complex64="complex64",(bt=wt||(wt={})).float32="complex64",bt.int32="complex64",bt.bool="complex64",bt.complex64="complex64";var Nt={float32:xt,int32:gt,bool:yt,complex64:wt};function kt(t,e){if("string"!==t&&"string"!==e)return Nt[t][e];if("string"===t&&"string"===e)return"string";throw new Error("Can not upcast "+t+" with "+e)}function It(t){return kt(t,"int32")}function Tt(t,e){if(t.dtype===e.dtype)return[t,e];var n=kt(t.dtype,e.dtype);return[t.cast(n),e.cast(n)]}function At(t,e){D(t.dtype===e.dtype,function(){return"The dtypes of the first("+t.dtype+") and second("+e.dtype+") input must match"})}function Dt(t){var e=[];return function t(e,n,r){if(null!=e)if(e instanceof dt)n.push(e);else if(s=e,Array.isArray(s)||"object"==typeof s){var o=e;for(var i in o){var a=o[i];r.has(a)||(r.add(a),t(a,n,r))}}var s}(t,e,new Set),e}var Mt,Ot,Pt=Object.freeze({makeTypesMatch:Tt,assertTypesMatch:At,isTensorInList:function(t,e){for(var n=0;n<e.length;n++)if(e[n].id===t.id)return!0;return!1},getTensorsInContainer:Dt}),Ft=function(){function t(t,e,n){this.backend=t,this.safeMode=e,this.debugMode=n,this.registeredVariables={},this.nextTapeNodeId=0,this.numBytes=0,this.numTensors=0,this.numStringTensors=0,this.numDataBuffers=0,this.profiling=!1,this.gradientDepth=0,this.kernelDepth=0,this.scopeStack=[],this.nextScopeId=0,this.tensorInfo=new WeakMap,this.profiler=new et(t),this.activeProfile={newBytes:0,newTensors:0,peakBytes:0,kernels:[],result:null}}return t.prototype.moveData=function(t){this.write(t,this.readSync(t))},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=dt.make(t.shape,{dataId:t.dataId},t.dtype);return this.addTapeNode([t],e,function(t){return[t.toFloat()]}),e},t.prototype.runKernel=function(t,e,n){var r,o=this,i=[],a=this.isTapeOn(),s=null!=this.activeScope?this.activeScope.name:"",u=function(t){a&&(i=t.map(function(t){return o.keep(o.clone(t))}))},c=this.numBytes,l=this.numTensors;if(this.scopedRun(function(){return o.kernelDepth++},function(){return o.kernelDepth--},function(){r=o.debugMode()?o.profiler.profileKernel(s,function(){return t(o.backend,u)}):t(o.backend,u)}),a){var h={id:this.nextTapeNodeId++,name:s,inputs:e,outputs:Array.isArray(r)?r:[r],saved:i};null!=n&&(h.gradient=function(t){return n(t,i)}),this.activeTape.push(h)}return this.profiling&&this.activeProfile.kernels.push({name:s,bytesAdded:this.numBytes-c,totalBytesSnapshot:this.numBytes,tensorsAdded:this.numTensors-l,totalTensorsSnapshot:this.numTensors,inputShapes:Object.keys(e).map(function(t){return e[t].shape}),outputShape:Array.isArray(r)?r.map(function(t){return t.shape}):r.shape}),r},t.prototype.registerTensor=function(t,e){var n=this.tensorInfo.has(t.dataId)?this.tensorInfo.get(t.dataId).refCount:0;if(this.numTensors++,"string"===t.dtype&&this.numStringTensors++,0===n){this.numDataBuffers++;var r=0;"complex64"!==t.dtype&&"string"!==t.dtype&&(r=t.size*U(t.dtype)),this.tensorInfo.set(t.dataId,{backend:null!=e?e:this.backend,dtype:t.dtype,shape:t.shape,bytes:r,refCount:0}),this.numBytes+=r,null!=e?e.register(t.dataId,t.shape,t.dtype):this.backend.register(t.dataId,t.shape,t.dtype)}this.tensorInfo.get(t.dataId).refCount++,t instanceof vt||this.track(t)},t.prototype.registerVariable=function(t){if(null!=this.registeredVariables[t.name])throw new Error("Variable with name "+t.name+" was already registered");this.registeredVariables[t.name]=t},t.prototype.disposeTensor=function(t){if(this.tensorInfo.has(t.dataId)){this.numTensors--,"string"===t.dtype&&this.numStringTensors--;var e=this.tensorInfo.get(t.dataId);e.refCount<=1?("complex64"!==t.dtype&&(this.numBytes-=e.bytes),this.numDataBuffers--,e.backend.disposeData(t.dataId),this.tensorInfo.delete(t.dataId)):this.tensorInfo.get(t.dataId).refCount--}},t.prototype.disposeVariables=function(){for(var t in this.registeredVariables){var e=this.registeredVariables[t];this.disposeTensor(e),delete this.registeredVariables[t]}},t.prototype.memory=function(){var t=this.backend.memory();return t.numTensors=this.numTensors,t.numDataBuffers=this.numDataBuffers,t.numBytes=this.numBytes,0<this.numStringTensors&&(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(r){return m(this,void 0,void 0,function(){var e,n;return R(this,function(t){return 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implemented")},t.prototype.depthToSpace=function(t,e,n){throw new Error("Not yet implemented")},t.prototype.split=function(t,e,n){throw new Error("Not yet implemented")},t.prototype.sparseToDense=function(t,e,n,r){throw new Error("Not yet implemented")},t.prototype.fill=function(t,e,n){throw new Error("Not yet implemented.")},t.prototype.onesLike=function(t){throw new Error("Not yet implemented")},t.prototype.zerosLike=function(t){throw new Error("Not yet implemented")},t.prototype.setDataMover=function(t){throw new Error("Not yet implemented")},t.prototype.dispose=function(){throw new Error("Not yet implemented")},t}();function an(t,e,n){if("complex64"===e){if("complex64"===t.dtype)return t.clone();var r=Qe(t.shape),o=t.toFloat(),i=n.complex(o,r);return r.dispose(),o.dispose(),i}if(!W(t.dtype,e))return dt.make(t.shape,{dataId:t.dataId},e);if("complex64"===t.dtype){var a=n.real(t);return i=a.cast(e),a.dispose(),i}if("int32"===e)return n.int(t);if("bool"!==e)throw new Error("Error in 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r=t.subarray(4*e,4*e+4),o=t.subarray(4*n,4*n+4),i=Math.min(r[0],r[2]),a=Math.min(r[1],r[3]),s=Math.max(r[0],r[2]),u=Math.max(r[1],r[3]),c=Math.min(o[0],o[2]),l=Math.min(o[1],o[3]),h=Math.max(o[0],o[2]),p=Math.max(o[1],o[3]),f=(s-i)*(u-a),d=(h-c)*(p-l);if(f<=0||d<=0)return 0;var v=Math.max(i,c),m=Math.max(a,l),g=Math.min(s,h),y=Math.min(u,p),x=Math.max(g-v,0)*Math.max(y-m,0);return x/(f+d-x)}function pn(n,t,r){var o=new Array(n.rank).fill(0),i=n.shape.slice();return t.map(function(t){i[r]=t;var e=n.slice(o,i);return o[r]+=t,e})}function fn(t,e,n,r,o){for(var i=e[e.length-1],a=[t.length/i,i],s=a[0],u=a[1],c=A(n,s*r),l=A("int32",s*r),h=0;h<s;h++){for(var p=h*u,f=t.subarray(p,p+u),d=[],v=0;v<f.length;v++)d.push({value:f[v],index:v});d.sort(function(t,e){return e.value-t.value});var m=h*r,g=c.subarray(m,m+r),y=l.subarray(m,m+r);for(v=0;v<r;v++)g[v]=d[v].value,y[v]=d[v].index}var x=e.slice();return x[x.length-1]=r,[Ge(c,x,n),Ge(l,x,"int32")]}var dn=function(t,e,n){this.variableNames=["A"];var r=t.windowSize,o=t.batchSize,i=t.inSize,a=Math.ceil(i/r);n||this.variableNames.push("bestIndicesA"),this.outputShape=[o,a];var s="max"===e?">":"<",u=n?"inOffset + i;":"round(getBestIndicesA(batch, inOffset + i));";this.userCode="\n      void main() {\n        ivec2 coords = getOutputCoords();\n        int batch = coords[0];\n        int outIdx = coords[1];\n        int inOffset = outIdx * "+r+";\n\n        int bestIndex = inOffset;\n        float bestValue = getA(batch, bestIndex);\n\n        for (int i = 0; i < "+r+"; i++) {\n          int inIdx = "+u+";\n          float candidate = getA(batch, inIdx);\n          if (candidate "+s+" bestValue) {\n            bestValue = candidate;\n            bestIndex = inIdx;\n          }\n        }\n        setOutput(float(bestIndex));\n      }\n    "};function vn(e,t){return["x","y","z","w","u","v"].slice(0,t).map(function(t){return e+"."+t})}function mn(t,e){return 1===e?[t]:vn(t,e)}function gn(t,e){for(var n=t.length,r=[],o=0;o<n;o++){var i=n-1-o,a=t[i]||1;1<(e[e.length-1-o]||1)&&1===a&&r.unshift(i)}return r}function yn(t,e){for(var n=[],r=0;r<e.length;r++){var o=t[t.length-r-1],i=e.length-r-1,a=e[i];(null==o||1===o&&1<a)&&n.unshift(i)}return n}function xn(t,e){for(var n=[],r=Math.max(t.length,e.length),o=0;o<r;o++){var i=t[t.length-o-1];null==i&&(i=1);var a=e[e.length-o-1];if(null==a&&(a=1),1===i)n.unshift(a);else if(1===a)n.unshift(i);else{if(i!==a)throw Error("Operands could not be broadcast together with shapes "+t+" and "+e+".");n.unshift(i)}}return n}function wn(){var t,e,n,r,o,i,a,s,u,c;return c=2===Zt.get("WEBGL_VERSION")?(t="#version 300 es",n="out",r=e="in",o="texture",i="outputColor",a="out vec4 outputColor;",s="\n      const float NAN = uintBitsToFloat(uint(0x7fc00000));\n    ",u="\n      const float INFINITY = uintBitsToFloat(uint(0x7f800000));\n    ","\n      #define round(value) newRound(value)\n      int newRound(float value) {\n        return 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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=gn(t.shapeInfo.logicalShape,e.logicalShape),c=Dn(s),l=s-a,h=["x","y","z","w","u","v"];n=0===a?"":s<2&&1<=u.length?"coords = 0;":u.map(function(t){return"coords."+h[t+l]+" = 0;"}).join("\n");var p="";p=s<2&&0<a?"coords":t.shapeInfo.logicalShape.map(function(t,e){return"coords."+h[e+l]}).join(", ");var f="return outputValue;";if(1===a&&1<s)f="\n      return vec4(outputValue.xy, outputValue.xy);\n    ";else if(0===a&&0<s)f=1===s?"\n        return vec4(outputValue.x, outputValue.x, 0., 0.);\n      ":"\n        return vec4(outputValue.x);\n      ";else if(u.length){var d=a-2,v=a-1;-1<u.indexOf(d)&&-1<u.indexOf(v)?f="return vec4(outputValue.x);":-1<u.indexOf(d)?f="return vec4(outputValue.x, outputValue.y, outputValue.x, outputValue.y);":-1<u.indexOf(v)&&(f="return vec4(outputValue.xx, outputValue.zz);")}return"\n    vec4 "+i+"() {\n      "+c+" coords = getOutputCoords();\n      "+n+"\n      vec4 outputValue = get"+o+"("+p+");\n      "+f+"\n    }\n  "}(t,e):function(t,e){var n=t.name,r=n.charAt(0).toUpperCase()+n.slice(1),o="get"+r+"AtOutCoords",i=e.texShape,a=t.shapeInfo.texShape,s=t.shapeInfo.logicalShape.length,u=e.logicalShape.length;if(!t.shapeInfo.isUniform&&s===u&&null==t.shapeInfo.flatOffset&&E(a,i))return"\n      float "+o+"() {\n        return sampleTexture("+n+", resultUV);\n      }\n    ";var c=Dn(u),l=gn(t.shapeInfo.logicalShape,e.logicalShape),h=u-s,p=["x","y","z","w","u","v"];return"\n    float "+o+"() {\n      "+c+" coords = getOutputCoords();\n      "+(0===s?"":u<2&&1<=l.length?"coords = 0;":l.map(function(t){return"coords."+p[t+h]+" = 0;"}).join("\n"))+"\n      return get"+r+"("+(u<2&&0<s?"coords":t.shapeInfo.logicalShape.map(function(t,e){return"coords."+p[e+h]}).join(", "))+");\n    }\n  "}(t,e)),r}(t,e,r)}).join("\n"),l=e.texShape,h=wn(),p="\n    float sampleTexture(sampler2D textureSampler, vec2 uv) {\n      return "+h.texture2D+"(textureSampler, uv).r;\n    }\n  ",f=(s=h).version+"\n    precision highp float;\n    precision highp int;\n    precision highp sampler2D;\n    "+s.varyingFs+" vec2 resultUV;\n    "+s.defineOutput+"\n    const vec2 halfCR = vec2(0.5, 0.5);\n\n    struct ivec5\n    {\n      int x;\n      int y;\n      int z;\n      int w;\n      int u;\n    };\n\n    struct ivec6\n    {\n      int x;\n      int y;\n      int z;\n      int w;\n      int u;\n      int v;\n    };\n\n    "+s.defineSpecialNaN+"\n    "+s.defineSpecialInf+"\n    "+s.defineRound+"\n\n    int imod(int x, int y) {\n      return x - y * (x / y);\n    }\n\n    //Based on the work of Dave Hoskins\n    //https://www.shadertoy.com/view/4djSRW\n    #define HASHSCALE1 443.8975\n    float random(float seed){\n      vec2 p = resultUV * seed;\n      vec3 p3  = fract(vec3(p.xyx) * HASHSCALE1);\n      p3 += dot(p3, p3.yzx + 19.19);\n      return fract((p3.x + p3.y) * p3.z);\n    }\n\n    "+Rn+"\n    "+Nn+"\n    "+kn+"\n  ";return a=e.isPacked?(i=function(t,e){switch(t.length){case 0:return"\n    int getOutputCoords() {\n      return 0;\n    }\n  ";case 1:return s=e,1===(u=[Math.ceil(s[0]/2),Math.ceil(s[1]/2)])[0]?"\n      int getOutputCoords() {\n        return 2 * int(resultUV.x * "+u[1]+".0);\n      }\n    ":1===u[1]?"\n      int getOutputCoords() {\n        return 2 * int(resultUV.y * "+u[0]+".0);\n      }\n    ":"\n    int getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+u[0]+", "+u[1]+"));\n      return resTexRC.x * "+u[1]+" + resTexRC.y;\n    }\n  ";case 2:return function(t,e){var n=[Math.ceil(e[0]/2),Math.ceil(e[1]/2)];if(E(t,e))return"\n      ivec2 getOutputCoords() {\n        return 2 * ivec2(resultUV.yx * vec2("+n[0]+", "+n[1]+"));\n      }\n    ";var r=Math.ceil(t[1]/2);return"\n    ivec2 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+n[0]+", "+n[1]+"));\n\n      int index = resTexRC.x * "+n[1]+" + resTexRC.y;\n      int r = 2 * (index / "+r+");\n      int c = imod(index, "+r+") * 2;\n\n      return ivec2(r, c);\n    }\n  "}(t,e);case 3:return n=t,r=e,o=[Math.ceil(r[0]/2),Math.ceil(r[1]/2)],i=Math.ceil(n[2]/2),a=i*Math.ceil(n[1]/2),"\n    ivec3 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+o[0]+", "+o[1]+"));\n      int index = resTexRC.x * "+o[1]+" + resTexRC.y;\n\n      int b = index / "+a+";\n      index -= b * "+a+";\n\n      int r = 2 * (index / "+i+");\n      int c = imod(index, "+i+") * 2;\n\n      return ivec3(b, r, c);\n    }\n  ";default:return function(t,e){for(var n=[Math.ceil(e[0]/2),Math.ceil(e[1]/2)],r=Math.ceil(t[t.length-1]/2),o=r*Math.ceil(t[t.length-2]/2),i=o,a="",s="b, r, c",u=2;u<t.length-1;u++)a="\n      int b"+u+" = index / "+(i*=t[t.length-u-1])+";\n      index -= b"+u+" * "+i+";\n    "+a,s="b"+u+", "+s;return"\n    ivec"+t.length+" getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+n[0]+", "+n[1]+"));\n      int index = resTexRC.x * "+n[1]+" + resTexRC.y;\n\n      "+a+"\n\n      int b = index / "+o+";\n      index -= b * "+o+";\n\n      int r = 2 * (index / "+r+");\n      int c = imod(index, "+r+") * 2;\n\n      return ivec"+t.length+"("+s+");\n    }\n  "}(t,e)}var n,r,o,i,a;var s,u}(e.logicalShape,l),"\n    void setOutput(vec4 val) {\n      "+h.output+" = val;\n    }\n  "):(i=function(t,e){switch(t.length){case 0:return"\n    int getOutputCoords() {\n      return 0;\n    }\n  ";case 1:return 1===(p=e)[0]?"\n      int getOutputCoords() {\n        return int(resultUV.x * "+p[1]+".0);\n      }\n    ":1===p[1]?"\n      int getOutputCoords() {\n        return int(resultUV.y * "+p[0]+".0);\n      }\n    ":"\n    int getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+p[0]+", "+p[1]+"));\n      return resTexRC.x * "+p[1]+" + resTexRC.y;\n    }\n  ";case 2:return E(l=t,h=e)?"\n      ivec2 getOutputCoords() {\n        return ivec2(resultUV.yx * vec2("+h[0]+", "+h[1]+"));\n      }\n    ":1===l[1]?"\n      ivec2 getOutputCoords() {\n        ivec2 resTexRC = ivec2(resultUV.yx *\n                               vec2("+h[0]+", "+h[1]+"));\n        int index = resTexRC.x * "+h[1]+" + resTexRC.y;\n        return ivec2(index, 0);\n      }\n    ":1===l[0]?"\n      ivec2 getOutputCoords() {\n        ivec2 resTexRC = ivec2(resultUV.yx *\n                               vec2("+h[0]+", "+h[1]+"));\n        int index = resTexRC.x * "+h[1]+" + resTexRC.y;\n        return ivec2(0, index);\n      }\n    ":"\n    ivec2 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+h[0]+", "+h[1]+"));\n      int index = resTexRC.x * "+h[1]+" + resTexRC.y;\n      int r = index / "+l[1]+";\n      int c = index - r * "+l[1]+";\n      return ivec2(r, c);\n    }\n  ";case 3:return u=e,c=bn(["r","c","d"],t),"\n    ivec3 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+u[0]+", "+u[1]+"));\n      int index = resTexRC.x * "+u[1]+" + resTexRC.y;\n      "+c+"\n      return ivec3(r, c, d);\n    }\n  ";case 4:return a=e,s=bn(["r","c","d","d2"],t),"\n    ivec4 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n        vec2("+a[0]+", "+a[1]+"));\n      int index = resTexRC.x * "+a[1]+" + resTexRC.y;\n      "+s+"\n      return ivec4(r, c, d, d2);\n    }\n  ";case 5:return o=e,i=bn(["r","c","d","d2","d3"],t),"\n    ivec5 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx * vec2("+o[0]+",\n                             "+o[1]+"));\n\n      int index = resTexRC.x * "+o[1]+" + resTexRC.y;\n\n      "+i+"\n\n      ivec5 outShape = ivec5(r, c, d, d2, d3);\n      return outShape;\n    }\n  ";case 6:return n=e,r=bn(["r","c","d","d2","d3","d4"],t),"\n    ivec6 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n        vec2("+n[0]+", "+n[1]+"));\n      int index = resTexRC.x * "+n[1]+" + resTexRC.y;\n\n      "+r+"\n\n      ivec6 result = ivec6(r, c, d, d2, d3, d4);\n      return result;\n    }\n  ";default:throw new Error(t.length+"-D output sampling is not yet supported")}var n,r;var o,i;var a,s;var u,c;var l,h;var p}(e.logicalShape,l),"\n    void setOutput(float val) {\n      "+h.output+" = vec4(val, 0, 0, 0);\n    }\n  "),r&&(f+=In),[f,p,a,u,i,c,n].join("\n")}function _n(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]+", "+Tn(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        "+An(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=Tn(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&&E(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=I(e),s=a.newShape,u=a.keptDims,c=s;if(c.length<e.length)return"\n      "+_n(Mn(t,c))+"\n      float "+r+"(int row, int col) {\n        return "+r+"("+On(["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        "+An(t)+"\n      }\n    ";var l=o[0],h=o[1],p=Tn(n);return 1===h?"\n    float "+r+"(int row, int col) {\n      float index = dot(vec3(row, col, "+p+"), 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, "+p+"), 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 + "+p+";\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=I(e),s=a.newShape,u=a.keptDims,c=s;if(c.length<e.length)return"\n        "+_n(Mn(t,c))+"\n        float "+r+"(int row, int col, int depth) {\n          return "+r+"("+On(["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        "+An(t)+"\n      }\n    ";var l=t.shapeInfo.texShape,h=l[0],p=l[1],f=t.shapeInfo.flatOffset;return p===o&&null==f?"\n        float "+r+"(int row, int col, int depth) {\n          float texR = float(row);\n          float texC = dot(vec2(col, depth), vec2("+i+", 1));\n          vec2 uv = (vec2(texC, texR) + halfCR) /\n                     vec2("+p+".0, "+h+".0);\n          return sampleTexture("+n+", uv);\n        }\n      ":p===i&&null==f?"\n    float "+r+"(int row, int col, int depth) {\n      float texR = dot(vec2(row, col), vec2("+e[1]+", 1));\n      float texC = float(depth);\n      vec2 uv = (vec2(texC, texR) + halfCR) / vec2("+p+".0, "+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 + "+Tn(n)+";\n        vec2 uv = uvFromFlat("+h+", "+p+", index);\n        return sampleTexture("+n+", uv);\n      }\n  "}(t);case 4:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=e[3],i=e[2]*o,a=e[1]*i,s=I(e),u=s.newShape,c=s.keptDims;if(u.length<e.length)return"\n      "+_n(Mn(t,u))+"\n      float "+r+"(int row, int col, int depth, int depth2) {\n        return "+r+"("+On(["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        "+An(t)+"\n      }\n    ";var l=t.shapeInfo.flatOffset,h=t.shapeInfo.texShape,p=h[0],f=h[1];return f===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("+f+".0, "+p+".0);\n        return sampleTexture("+n+", uv);\n      }\n    ":f===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("+f+".0, "+p+".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("+p+", "+f+", index + "+Tn(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=I(e),c=u.newShape,l=u.keptDims;if(c.length<e.length)return"\n      "+_n(Mn(t,c))+"\n      float "+r+"(int row, int col, int depth, int depth2, int depth3) {\n        return "+r+"("+On(["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        "+An(t)+"\n      }\n    ";var h=t.shapeInfo.flatOffset,p=t.shapeInfo.texShape,f=p[0],d=p[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, "+f+".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, "+f+".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 + "+Tn(n)+";\n      vec2 uv = uvFromFlat("+f+", "+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=I(e),i=o.newShape,a=o.keptDims;if(i.length<e.length)return"\n      "+_n(Mn(t,i))+"\n      float "+r+"(int row, int col, int depth,\n                    int depth2, int depth3, int depth4) {\n        return "+r+"("+On(["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        "+An(t)+"\n      }\n    ";var p=t.shapeInfo.flatOffset,f=t.shapeInfo.texShape,d=f[0],v=f[1];return v===h&&null==p?"\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==p?"\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 + "+Tn(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 Sn(t){switch(t.shapeInfo.logicalShape.length){case 0:return"\n    vec4 get"+(s=t.name).charAt(0).toUpperCase()+s.slice(1)+"() {\n      return "+wn().texture2D+"("+s+", halfCR);\n    }\n  ";case 1:return n=(e=t).name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=e.shapeInfo.texShape,i=[Math.ceil(o[0]/2),Math.ceil(o[1]/2)],a=wn(),"\n    vec4 "+r+"(int index) {\n      vec2 uv = packedUVfrom1D(\n        "+i[0]+", "+i[1]+", index);\n      return "+a.texture2D+"("+n+", uv);\n    }\n  ";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=wn();if(null!=o&&E(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        "+Sn(Mn(t,e.slice(1)))+"\n        vec4 "+r+"(int b, int row, int col) {\n          return "+r+"("+On(["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 "+wn().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",p="b * "+l+" + (row / 2) * "+c+" + (col / 2)",f=2;f<n-1;f++)h="int b"+f+", "+h,p="b"+f+" * "+(l*=e[n-f-1])+" + "+p;return"\n    vec4 "+o+"("+h+") {\n      int index = "+p+";\n      int texR = index / "+u+";\n      int texC = index - texR * "+u+";\n      vec2 uv = (vec2(texC, texR) + halfCR) / vec2("+u+", "+s+");\n      return "+wn().texture2D+"("+r+", uv);\n    }\n  "}(t)}var e,n,r,o,i,a,s}var Rn="\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",Nn="\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",kn="\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",In="\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 Tn(t){return"offset"+t}function An(t){var e=t.name,n=B(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 Dn(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 Mn(t,e){var n=JSON.parse(JSON.stringify(t));return n.shapeInfo.logicalShape=e,n}function On(e,t){return t.map(function(t){return e[t]}).join(", ")}var Pn=function(t,e,n,r){this.variableNames=["A"],this.usesPackedTextures=!0,D(2<t.length,function(){return"Packed arg"+(n.charAt(0).toUpperCase()+n.slice(1))+" supports only inputs with rank above 2."});var o=t[t.length-1],i=Math.ceil(o/e);this.outputShape=t.slice(0,-1),1<i&&this.outputShape.push(i),r||this.variableNames.push("bestIndicesA");var a,s,u=this.outputShape,c=u.length,l=Dn(c),h=mn("coords",c);if(1===i){var p=Dn(s=c+1);a="\n        "+p+" sourceLocR = "+p+"("+h.join()+", 0);\n        ++"+h[c-1]+";\n        "+p+" sourceLocG = "+p+"("+h.join()+", 0);\n        ++"+h[c-2]+";\n        "+p+" sourceLocA = "+p+"("+h.join()+", 0);\n        --"+h[c-1]+";\n        "+p+" sourceLocB = "+p+"("+h.join()+", 0);\n        --"+h[c-2]+";"}else a="\n        "+l+" sourceLocR = coords;\n        ++"+h[(s=c)-1]+";\n        "+l+" sourceLocG = coords;\n        ++"+h[c-2]+";\n        "+l+" sourceLocA = coords;\n        --"+h[c-1]+";\n        "+l+" sourceLocB = coords;\n        --"+h[c-2]+";";var f=["x","y","z","w","u","v"].slice(0,s),d="."+f[s-1],v=f.map(function(t){return"int "+t}),m=mn("sourceLocR",s-1).concat("inIdx.r"),g=mn("sourceLocG",s-1).concat("inIdx.g"),y=mn("sourceLocB",s-1).concat("inIdx.b"),x=mn("sourceLocA",s-1).concat("inIdx.a"),w="max"===n?"greaterThan":"lessThan",b=r?"":"\n          inIdx = round(vec4(getBestIndicesAChannel("+m.join()+"),\n                             getBestIndicesAChannel("+g.join()+"),\n                             getBestIndicesAChannel("+y.join()+"),\n                             getBestIndicesAChannel("+x.join()+")));",E="vec4(\n            getAChannel("+m.join()+"),\n            hasNextCol ? getAChannel("+g.join()+") : 0.,\n            hasNextRow ? getAChannel("+y.join()+") : 0.,\n            hasNextRow && hasNextCol ? getAChannel("+x.join()+") : 0.)",C=r?"":"\n      float getBestIndicesAChannel("+v.join()+") {\n        return getChannel(getBestIndicesA("+f.join()+"),\n                                          vec2("+f.slice(-2).join()+"));\n      }";this.userCode="\n      float getAChannel("+v.join()+") {\n        return getChannel(getA("+f.join()+"),\n                               vec2("+f.slice(-2).join()+"));\n      }\n      "+C+"\n      void main() {\n        "+l+" coords = getOutputCoords();\n        bool hasNextCol = "+h[c-1]+" < "+(u[c-1]-1)+";\n        bool hasNextRow = "+h[c-2]+" < "+(u[c-2]-1)+";\n        "+a+"\n        ivec4 srcIdx = ivec4(sourceLocR"+d+", sourceLocG"+d+",\n          sourceLocB"+d+", sourceLocA"+d+") * "+e+";\n        ivec4 inIdx = srcIdx;\n        vec4 bestIndex = vec4(inIdx);\n        vec4 bestValue = "+E+";\n\n        for (int i = 0; i < "+e+"; i++) {\n          inIdx = srcIdx;\n          "+b+"\n          vec4 candidate = "+E+";\n          bvec4 nan = isnan(candidate);\n          bvec4 replace = bvec4(\n            vec4("+w+"(candidate, bestValue)) * (vec4(1.0) - vec4(nan)));\n\n          bestValue = vec4(replace.x  ? candidate.x : bestValue.x,\n                           replace.y  ? candidate.y : bestValue.y,\n                           replace.z  ? candidate.z : bestValue.z,\n                           replace.w  ? candidate.w : bestValue.w);\n          bestIndex = mix(bestIndex, vec4(inIdx), vec4(replace));\n          srcIdx++;\n        }\n        setOutput(bestIndex);\n      }\n    "},Fn=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    "},Ln=function(t,e,n,r,o,i){this.outputShape=[],this.variableNames=["x","mean","variance"],xn(t,e),xn(t,n);var a="0.0";null!=r&&(xn(t,r),this.variableNames.push("offset"),a="getOffsetAtOutCoords()");var s="1.0";null!=o&&(xn(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    "},Bn=function(t,e,n,r,o,i){this.usesPackedTextures=!0,this.variableNames=["x","mean","variance"],xn(t,e),xn(t,n);var a="vec4(0.0)";null!=r&&(xn(t,r),this.variableNames.push("offset"),a="getOffsetAtOutCoords()");var s="vec4(1.0)";null!=o&&(xn(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    "},Wn="return areal * breal - aimag * bimag;",zn="return areal * bimag + aimag * breal;",Un=function(t,e,n){this.variableNames=["AReal","AImag","BReal","BImag"],this.outputShape=xn(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    "},Gn="return a + b;",Vn="return a - b;",Hn="return a * b;",qn="return (a - b) * (a - b);",jn=function(t,e,n){this.variableNames=["A","B"],this.outputShape=xn(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    "},$n=function(t,e,n){this.variableNames=["A","B"],this.supportsBroadcasting=!0,this.usesPackedTextures=!0,this.outputShape=xn(e,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        setOutput(binaryOperation(a, b));\n      }\n    "},Kn=function(){function t(t){this.variableNames=["A"],this.outputShape=t,this.userCode="\n      uniform float min;\n      uniform float max;\n\n      void main() {\n        float value = getAAtOutCoords();\n        if (isnan(value)) {\n          setOutput(value);\n          return;\n        }\n\n        setOutput(clamp(value, min, max));\n      }\n    "}return t.prototype.getCustomSetupFunc=function(n,r){var o=this;return function(t,e){null==o.minLoc&&(o.minLoc=t.getUniformLocationNoThrow(e,"min"),o.maxLoc=t.getUniformLocationNoThrow(e,"max")),t.gl.uniform1f(o.minLoc,n),t.gl.uniform1f(o.maxLoc,r)}},t}(),Xn=function(){function t(t){this.variableNames=["A"],this.usesPackedTextures=!0,this.outputShape=t,this.userCode="\n      uniform float min;\n      uniform float max;\n\n      void main() {\n        vec4 value = getAAtOutCoords();\n\n        if (any(isnan(value))) {\n          setOutput(value);\n          return;\n        }\n\n        setOutput(clamp(value, vec4(min), vec4(max)));\n      }\n    "}return t.prototype.getCustomSetupFunc=function(n,r){var o=this;return function(t,e){null==o.minLoc&&(o.minLoc=t.getUniformLocationNoThrow(e,"min"),o.maxLoc=t.getUniformLocationNoThrow(e,"max")),t.gl.uniform1f(o.minLoc,n),t.gl.uniform1f(o.maxLoc,r)}},t}(),Yn=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    "},Qn=function(t){this.outputShape=[],this.outputShape=Re(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    "},Jn=function(t,e){this.usesPackedTextures=!0,this.outputShape=[],this.outputShape=Re(t,e);var n=this.outputShape,r=n.length,o=Dn(r),i=mn("coords",r),a=["x","y","z","w","u","v"].slice(0,r);this.variableNames=t.map(function(t,e){return"T"+e});var s=new Array(t.length-1);s[0]=t[0][e];for(var u=1;u<s.length;u++)s[u]=s[u-1]+t[u][e];var c=a[e],l="vec2("+a.slice(-2).join()+")",h=a.join(),p="if ("+c+" < "+s[0]+")\n          return getChannel(getT0("+h+"), "+l+");";for(u=1;u<s.length;u++){var f=s[u-1];p+="\n        else if ("+c+" < "+s[u]+") {\n          "+c+" -= "+f+";\n          return getChannel(getT"+u+"("+h+"), "+l+");\n        }"}var d=s.length;p+="\n        else {\n          "+c+" -= "+s[s.length-1]+";\n          return getChannel(getT"+d+"("+h+"), "+l+");\n        }",this.userCode="\n      float getValue("+a.map(function(t){return"int "+t})+") {\n        "+p+"\n      }\n\n      void main() {\n        "+o+" coords = getOutputCoords();\n        vec4 result = vec4(getValue("+i+"), 0., 0., 0.);\n        if (++"+i[r-1]+" < "+n[r-1]+") {\n          result.g = getValue("+i+");\n        }\n        if (++"+i[r-2]+" < "+n[r-2]+") {\n          result.a = getValue("+i+");\n        }\n        if ("+i[r-2]+" < "+n[r-2]+" &&\n            --"+i[r-1]+" < "+n[r-1]+") {\n          result.b = getValue("+i+");\n        }\n        setOutput(result);\n      }\n    "},Zn=function(t){this.variableNames=["x","dy"],this.outputShape=t.filterShape;var e=t.strideHeight,n=t.strideWidth,r=t.padInfo.top,o=t.padInfo.left;this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int wR = coords.x;\n        int wC = coords.y;\n        int d1 = coords.z;\n        int d2 = coords.w;\n\n        // Convolve x(?, ?, d1) with dy(:, :, d2) to get dw(wR, wC, d1, d2).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n\n        for (int b = 0; b < "+t.batchSize+"; b++) {\n          for (int yR = 0; yR < "+t.outHeight+"; yR++) {\n            int xR = wR + yR * "+e+" - "+r+";\n\n            if (xR < 0 || xR >= "+t.inHeight+") {\n              continue;\n            }\n\n            for (int yC = 0; yC < "+t.outWidth+"; yC++) {\n              int xC = wC + yC * "+n+" - "+o+";\n\n              if (xC < 0 || xC >= "+t.inWidth+") {\n                continue;\n              }\n\n              float dyValue = getDy(b, yR, yC, d2);\n              float xValue = getX(b, xR, xC, d1);\n              dotProd += (xValue * dyValue);\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},tr=function(t){this.variableNames=["dy","W"],this.outputShape=t.inShape;var e=t.filterHeight,n=t.filterWidth,r=t.strideHeight,o=t.strideWidth,i=e-1-t.padInfo.top,a=n-1-t.padInfo.left;this.userCode="\n      const ivec2 pads = ivec2("+i+", "+a+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int batch = coords[0];\n        int d1 = coords[3];\n\n        ivec2 dyCorner = coords.yz - pads;\n        int dyRCorner = dyCorner.x;\n        int dyCCorner = dyCorner.y;\n\n        // Convolve dy(?, ?, d2) with w(:, :, d1, d2) to compute dx(xR, xC, d1).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n        for (int wR = 0; wR < "+e+"; wR++) {\n          float dyR = float(dyRCorner + wR) / "+r+".0;\n\n          if (dyR < 0.0 || dyR >= "+t.outHeight+".0 || fract(dyR) > 0.0) {\n            continue;\n          }\n          int idyR = int(dyR);\n\n          int wRPerm = "+e+" - 1 - wR;\n\n          for (int wC = 0; wC < "+n+"; wC++) {\n            float dyC = float(dyCCorner + wC) / "+o+".0;\n\n            if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n                fract(dyC) > 0.0) {\n              continue;\n            }\n            int idyC = int(dyC);\n\n            int wCPerm = "+n+" - 1 - wC;\n\n            for (int d2 = 0; d2 < "+t.outChannels+"; d2++) {\n              float xValue = getDy(batch, idyR, idyC, d2);\n              float wValue = getW(wRPerm, wCPerm, d1, d2);\n              dotProd += xValue * wValue;\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},er=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    "},nr=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    "},rr=function(t){this.variableNames=["x","dy"],this.outputShape=t.filterShape;var e=t.strideHeight,n=t.strideWidth,r=t.padInfo.top,o=t.padInfo.left,i=t.outChannels/t.inChannels;this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int wR = coords.x;\n        int wC = coords.y;\n        int d1 = coords.z;\n        int dm = coords.w;\n        int d2 = d1 * "+i+" + dm;\n\n        float dotProd = 0.0;\n\n        // TODO: Vec4 over the batch size\n        for (int b = 0; b < "+t.batchSize+"; b++) {\n          for (int yR = 0; yR < "+t.outHeight+"; yR++) {\n            int xR = wR + yR * "+e+" - "+r+";\n\n            if (xR < 0 || xR >= "+t.inHeight+") {\n              continue;\n            }\n\n            for (int yC = 0; yC < "+t.outWidth+"; yC++) {\n              int xC = wC + yC * "+n+" - "+o+";\n\n              if (xC < 0 || xC >= "+t.inWidth+") {\n                continue;\n              }\n\n              float dyValue = getDy(b, yR, yC, d2);\n              float xValue = getX(b, xR, xC, d1);\n              dotProd += (xValue * dyValue);\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},or=function(t){this.variableNames=["dy","W"],this.outputShape=t.inShape;var e=t.filterHeight,n=t.filterWidth,r=t.strideHeight,o=t.strideWidth,i=e-1-t.padInfo.top,a=n-1-t.padInfo.left,s=t.outChannels/t.inChannels;this.userCode="\n      const ivec2 pads = ivec2("+i+", "+a+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int batch = coords[0];\n        int d1 = coords[3];\n        ivec2 dyCorner = coords.yz - pads;\n        int dyRCorner = dyCorner.x;\n        int dyCCorner = dyCorner.y;\n\n        float dotProd = 0.0;\n\n        for (int wR = 0; wR < "+e+"; wR++) {\n          float dyR = float(dyRCorner + wR) / "+r+".0;\n\n          if (dyR < 0.0 || dyR >= "+t.outHeight+".0 || fract(dyR) > 0.0) {\n            continue;\n          }\n          int idyR = int(dyR);\n\n          int wRPerm = "+e+" - 1 - wR;\n\n          for (int wC = 0; wC < "+n+"; wC++) {\n            float dyC = float(dyCCorner + wC) / "+o+".0;\n\n            if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n                fract(dyC) > 0.0) {\n              continue;\n            }\n            int idyC = int(dyC);\n\n            int wCPerm = "+n+" - 1 - wC;\n\n            // TODO: Vec4 over the channelMul\n            for (int dm = 0; dm < "+s+"; dm++) {\n              int d2 = d1 * "+s+" + dm;\n              float xValue = getDy(batch, idyR, idyC, d2);\n              float wValue = getW(wRPerm, wCPerm, d1, dm);\n              dotProd += xValue * wValue;\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},ir=function(t){this.variableNames=["x","W"],this.outputShape=t.outShape;var e=t.padInfo.top,n=t.padInfo.left,r=t.strideHeight,o=t.strideWidth,i=t.dilationHeight,a=t.dilationWidth,s=t.filterHeight,u=t.filterWidth,c=4*Math.floor(t.inChannels/4),l=t.inChannels%4;this.userCode="\n      const ivec2 strides = ivec2("+r+", "+o+");\n      const ivec2 pads = ivec2("+e+", "+n+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int batch = coords[0];\n        int d2 = coords[3];\n\n        ivec2 xRCCorner = coords.yz * strides - pads;\n        int xRCorner = xRCCorner.x;\n        int xCCorner = xRCCorner.y;\n\n        // Convolve x(?, ?, d1) with w(:, :, d1, d2) to get y(yR, yC, d2).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n        for (int wR = 0; wR < "+s+"; wR++) {\n          int xR = xRCorner + wR * "+i+";\n\n          if (xR < 0 || xR >= "+t.inHeight+") {\n            continue;\n          }\n\n          for (int wC = 0; wC < "+u+"; wC++) {\n            int xC = xCCorner + wC * "+a+";\n\n            if (xC < 0 || xC >= "+t.inWidth+") {\n              continue;\n            }\n\n            for (int d1 = 0; d1 < "+c+"; d1 += 4) {\n              vec4 xValues = vec4(\n                getX(batch, xR, xC, d1),\n                getX(batch, xR, xC, d1 + 1),\n                getX(batch, xR, xC, d1 + 2),\n                getX(batch, xR, xC, d1 + 3)\n              );\n              vec4 wValues = vec4(\n                getW(wR, wC, d1, d2),\n                getW(wR, wC, d1 + 1, d2),\n                getW(wR, wC, d1 + 2, d2),\n                getW(wR, wC, d1 + 3, d2)\n              );\n\n              dotProd += dot(xValues, wValues);\n            }\n\n            if ("+(1===l)+") {\n              dotProd +=\n                getX(batch, xR, xC, "+c+") *\n                getW(wR, wC, "+c+", d2);\n            } else if ("+(2===l)+") {\n              vec2 xValues = vec2(\n                getX(batch, xR, xC, "+c+"),\n                getX(batch, xR, xC, "+c+" + 1)\n              );\n              vec2 wValues = vec2(\n                getW(wR, wC, "+c+", d2),\n                getW(wR, wC, "+c+" + 1, d2)\n              );\n              dotProd += dot(xValues, wValues);\n            } else if ("+(3===l)+") {\n              vec3 xValues = vec3(\n                getX(batch, xR, xC, "+c+"),\n                getX(batch, xR, xC, "+c+" + 1),\n                getX(batch, xR, xC, "+c+" + 2)\n              );\n              vec3 wValues = vec3(\n                getW(wR, wC, "+c+", d2),\n                getW(wR, wC, "+c+" + 1, d2),\n                getW(wR, wC, "+c+" + 2, d2)\n              );\n              dotProd += dot(xValues, wValues);\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},ar=function(t){this.variableNames=["x","W"],this.outputShape=t.outShape;var e=t.padInfo.front,n=t.padInfo.top,r=t.padInfo.left,o=t.strideDepth,i=t.strideHeight,a=t.strideWidth,s=t.dilationDepth,u=t.dilationHeight,c=t.dilationWidth,l=t.filterDepth,h=t.filterHeight,p=t.filterWidth,f=4*Math.floor(t.inChannels/4),d=t.inChannels%4;this.userCode="\n      const ivec3 strides = ivec3("+o+", "+i+", "+a+");\n      const ivec3 pads = ivec3("+e+", "+n+", "+r+");\n\n      void main() {\n        ivec5 coords = getOutputCoords();\n        int batch = coords.x;\n        int d2 = coords.u;\n\n        ivec3 xFRCCorner = ivec3(coords.y, coords.z, coords.w) * strides - pads;\n        int xFCorner = xFRCCorner.x;\n        int xRCorner = xFRCCorner.y;\n        int xCCorner = xFRCCorner.z;\n\n        // Convolve x(?, ?, ?, d1) with w(:, :, :, d1, d2) to get\n        // y(yF, yR, yC, d2). ? = to be determined. : = across all\n        // values in that axis.\n        float dotProd = 0.0;\n        for (int wF = 0; wF < "+l+"; wF++) {\n          int xF = xFCorner + wF * "+s+";\n\n          if (xF < 0 || xF >= "+t.inDepth+") {\n            continue;\n          }\n\n          for (int wR = 0; wR < "+h+"; wR++) {\n            int xR = xRCorner + wR * "+u+";\n\n            if (xR < 0 || xR >= "+t.inHeight+") {\n              continue;\n            }\n\n            for (int wC = 0; wC < "+p+"; wC++) {\n              int xC = xCCorner + wC * "+c+";\n\n              if (xC < 0 || xC >= "+t.inWidth+") {\n                continue;\n              }\n\n              for (int d1 = 0; d1 < "+f+"; d1 += 4) {\n                vec4 xValues = vec4(\n                  getX(batch, xF, xR, xC, d1),\n                  getX(batch, xF, xR, xC, d1 + 1),\n                  getX(batch, xF, xR, xC, d1 + 2),\n                  getX(batch, xF, xR, xC, d1 + 3)\n                );\n                vec4 wValues = vec4(\n                  getW(wF, wR, wC, d1, d2),\n                  getW(wF, wR, wC, d1 + 1, d2),\n                  getW(wF, wR, wC, d1 + 2, d2),\n                  getW(wF, wR, wC, d1 + 3, d2)\n                );\n\n                dotProd += dot(xValues, wValues);\n              }\n\n              if ("+(1===d)+") {\n                dotProd +=\n                  getX(batch, xF, xR, xC, "+f+") *\n                  getW(wF, wR, wC, "+f+", d2);\n              } else if ("+(2===d)+") {\n                vec2 xValues = vec2(\n                  getX(batch, xF, xR, xC, "+f+"),\n                  getX(batch, xF, xR, xC, "+f+" + 1)\n                );\n                vec2 wValues = vec2(\n                  getW(wF, wR, wC, "+f+", d2),\n                  getW(wF, wR, wC, "+f+" + 1, d2)\n                );\n                dotProd += dot(xValues, wValues);\n              } else if ("+(3===d)+") {\n                vec3 xValues = vec3(\n                  getX(batch, xF, xR, xC, "+f+"),\n                  getX(batch, xF, xR, xC, "+f+" + 1),\n                  getX(batch, xF, xR, xC, "+f+" + 2)\n                );\n                vec3 wValues = vec3(\n                  getW(wF, wR, wC, "+f+", d2),\n                  getW(wF, wR, wC, "+f+" + 1, d2),\n                  getW(wF, wR, wC, "+f+" + 2, d2)\n                );\n                dotProd += dot(xValues, wValues);\n              }\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},sr=function(t){this.variableNames=["x","W"],this.outputShape=t.outShape;var e=t.inHeight,n=t.inWidth,r=t.padInfo.top,o=t.padInfo.left,i=t.strideHeight,a=t.strideWidth,s=t.dilationHeight,u=t.dilationWidth,c=t.filterHeight,l=t.filterWidth,h=t.outChannels/t.inChannels;this.userCode="\n      const ivec2 strides = ivec2("+i+", "+a+");\n      const ivec2 pads = ivec2("+r+", "+o+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int batch = coords.x;\n        ivec2 xRCCorner = coords.yz * strides - pads;\n        int d2 = coords.w;\n        int d1 = d2 / "+h+";\n        int q = d2 - d1 * "+h+";\n\n        int xRCorner = xRCCorner.x;\n        int xCCorner = xRCCorner.y;\n\n        // Convolve x(?, ?, d1) with w(:, :, d1, q) to get y(yR, yC, d2).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n        // TODO(dsmilkov): Flatten the two for loops and vec4 the operations.\n        for (int wR = 0; wR < "+c+"; wR++) {\n          int xR = xRCorner + wR * "+s+";\n\n          if (xR < 0 || xR >= "+e+") {\n            continue;\n          }\n\n          for (int wC = 0; wC < "+l+"; wC++) {\n            int xC = xCCorner + wC * "+u+";\n\n            if (xC < 0 || xC >= "+n+") {\n              continue;\n            }\n\n            float xVal = getX(batch, xR, xC, d1);\n            float wVal = getW(wR, wC, d1, q);\n            dotProd += xVal * wVal;\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},ur=function(t){this.variableNames=["x","W"],this.usesPackedTextures=!0,this.outputShape=t.outShape;for(var e=t.inHeight,n=t.inWidth,r=t.padInfo.top,o=t.padInfo.left,i=t.strideHeight,a=t.strideWidth,s=t.dilationHeight,u=t.dilationWidth,c=t.filterHeight,l=t.filterWidth,h=l,p="int xR; int xC; int xCOffset;",f=0;f<c;f++)for(var d=0;d<l;d++)p+="\n          vec4 xTexelR"+f+"C"+2*d+" = vec4(0.);\n          vec4 wR"+f+"C"+d+" = vec4(0.);\n          vec4 xR"+f+"C"+d+" = vec4(0.);";for(f=0;f<c;f++)for(var v=0;v<h;v++){if(p+="\n          xR = xRCorner + "+f*s+";\n          xC = xCCorner + "+(d=2*v)*u+";\n        ",1===a){if(d<l&&(p+=o%2==1?"\n                xCOffset = xC + 1;\n                if(xR >= 0 && xR < "+e+" && xCOffset >= 0 && xCOffset < "+n+") {\n                  xTexelR"+f+"C"+d+" = getX(batch, xR, xCOffset, d1);\n                } else {\n                  xTexelR"+f+"C"+d+" = vec4(0.);\n                }\n\n                xCOffset = xC + 1 - 2;\n                if(xR >= 0 && xR < "+e+" && xCOffset >= 0 && xCOffset < "+n+") {\n                  vec4 previous = getX(batch, xR, xCOffset, d1);\n                  xR"+f+"C"+d+" = vec4(previous.zw, xTexelR"+f+"C"+d+".xy);\n                } else {\n                  xR"+f+"C"+d+" = vec4(0, 0, xTexelR"+f+"C"+d+".xy);\n                }\n              ":"\n                if(xR >= 0 && xR < "+e+" && xC >= 0 && xC < "+n+") {\n                  xTexelR"+f+"C"+d+" = getX(batch, xR, xC, d1);\n                } else {\n                  xTexelR"+f+"C"+d+" = vec4(0.);\n                }\n\n                xR"+f+"C"+d+" = xTexelR"+f+"C"+d+";\n              ",d+1<l)){var m=o%2==0?_(u):u;u%2==0&&o%2==1||u%2!=0&&o%2!=1?(p+="\n                  xCOffset = xC + "+o%2+" + "+m+";\n\n                  if(xR >= 0 && xR < "+e+" &&\n                    xCOffset >= 0 && xCOffset < "+n+") {\n                    xTexelR"+f+"C"+(d+2)+" = getX(batch, xR, xCOffset, d1);\n                  }\n                ",1<u&&(p+="\n                    xCOffset -= 2;\n                    if(xR >= 0 && xR < "+e+" &&\n                      xCOffset >= 0 && xCOffset < "+n+") {\n                      xTexelR"+f+"C"+d+" = getX(batch, xR, xCOffset, d1);\n                    } else {\n                      xTexelR"+f+"C"+d+" = vec4(0.);\n                    }\n                  "),p+="\n                  xR"+f+"C"+(d+1)+" = vec4(\n                    xTexelR"+f+"C"+d+".zw, xTexelR"+f+"C"+(d+2)+".xy);\n                "):p+="\n                  xCOffset = xC + "+m+";\n\n                  if(xR >= 0 && xR < "+e+" &&\n                    xCOffset >= 0 && xCOffset < "+n+") {\n                    xTexelR"+f+"C"+(d+2)+" = getX(batch, xR, xCOffset, d1);\n                  }\n\n                  xR"+f+"C"+(d+1)+" = xTexelR"+f+"C"+(d+2)+";\n                "}}else d<l&&(p+="\n              if(xR >= 0 && xR < "+e+") {\n            ",o%2==1?(p+="\n                xCOffset = xC + 1 - "+a+";\n                if(xCOffset >= 0 && xCOffset < "+n+") {\n                  xTexelR"+f+"C"+d+" = getX(batch, xR, xCOffset, d1);\n                } else {\n                  xTexelR"+f+"C"+d+" = vec4(0.);\n                }\n\n                if(xC + 1 >= 0 && xC + 1 < "+n+") {\n                  xTexelR"+f+"C"+(d+2)+" = getX(batch, xR, xC + 1, d1);\n                } else {\n                  xTexelR"+f+"C"+(d+2)+" = vec4(0.);\n                }\n\n                xR"+f+"C"+d+" = vec4(\n                  xTexelR"+f+"C"+d+".zw, xTexelR"+f+"C"+(d+2)+".zw);\n              ",d+1<l&&(p+="\n                  vec4 final = vec4(0.);\n                  xCOffset = xC + 1 + "+a+";\n                  if(xCOffset >= 0 && xCOffset < "+n+") {\n                    final = getX(batch, xR, xCOffset, d1);\n                  }\n                  xR"+f+"C"+(d+1)+" = vec4(xTexelR"+f+"C"+(d+2)+".xy, final.xy);\n                ")):(p+="\n                if(xC >= 0 && xC < "+n+") {\n                  xTexelR"+f+"C"+d+" = getX(batch, xR, xC, d1);\n                } else {\n                  xTexelR"+f+"C"+d+" = vec4(0.);\n                }\n\n                xCOffset = xC + "+a+";\n                if(xCOffset >= 0 && xCOffset < "+n+") {\n                  xTexelR"+f+"C"+(d+2)+" = getX(batch, xR, xCOffset, d1);\n                } else {\n                  xTexelR"+f+"C"+(d+2)+" = vec4(0.);\n                }\n\n                xR"+f+"C"+d+" = vec4(\n                  xTexelR"+f+"C"+d+".xy, xTexelR"+f+"C"+(d+2)+".xy);\n              ",d+1<l&&(p+="\n                  xR"+f+"C"+(d+1)+" = vec4(\n                    xTexelR"+f+"C"+d+".zw, xTexelR"+f+"C"+(d+2)+".zw);\n                ")),p+="}");d<l&&(p+="\n            vec4 wTexelR"+f+"C"+d+" = getW("+f+", "+d+", d1, q);\n            wR"+f+"C"+d+" = vec4(wTexelR"+f+"C"+d+".xz, wTexelR"+f+"C"+d+".xz);\n          ",d+1<l&&(p+="\n              vec4 wTexelR"+f+"C"+(d+1)+" = getW("+f+", "+(d+1)+", d1, q);\n              wR"+f+"C"+(d+1)+" =\n                vec4(wTexelR"+f+"C"+(d+1)+".xz, wTexelR"+f+"C"+(d+1)+".xz);"))}for(f=0;f<c;f++)for(d=0;d<l;d++)p+="result += xR"+f+"C"+d+" * wR"+f+"C"+d+";";this.userCode="\n      const ivec2 strides = ivec2("+i+", "+a+");\n      const ivec2 pads = ivec2("+r+", "+o+");\n\n      void main() {\n\n        ivec4 coords = getOutputCoords();\n        int batch = coords.x;\n        ivec2 xRCCorner = coords.yz * strides - pads;\n        int d2 = coords.w;\n        int d1 = d2;\n        int q = 0;\n        int xRCorner = xRCCorner.x;\n        int xCCorner = xRCCorner.y;\n\n        vec4 result = vec4(0.);\n\n        "+p+"\n\n        setOutput(result);\n      }\n    "},cr=function(t,e,n,r,o){this.variableNames=["Image","Boxes","BoxInd"],this.outputShape=[];var i=t[0],a=t[1],s=t[2],u=t[3],c=e[0],l=n[0],h=n[1];this.outputShape=[c,l,h,u];var p="bilinear"===r?1:0,f=[a-1+".0",s-1+".0"],d=f[0],v=f[1],m=1<l?[""+(a-1)/(l-1),"(y2-y1) * height_ratio","y1*"+d+" + float(y)*(height_scale)"]:["0.0","0.0","0.5 * (y1+y2) * "+d],g=m[0],y=m[1],x=m[2],w=1<h?[""+(s-1)/(h-1),"(x2-x1) * width_ratio","x1*"+v+" + float(x)*(width_scale)"]:["0.0","0.0","0.5 * (x1+x2) * "+v],b=w[0],E=w[1],C=w[2];this.userCode="\n      const float height_ratio = float("+g+");\n      const float width_ratio = float("+b+");\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 = "+E+";\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 = "+C+";\n        if( in_x < 0.0 || in_x > "+v+" ) {\n          setOutput(float("+o+"));\n          return;\n        }\n\n        vec2 sourceFracIndexCR = vec2(in_x,in_y);\n        if("+p+" == 1) {\n          // Compute the four integer indices.\n          ivec2 sourceFloorCR = ivec2(sourceFracIndexCR);\n          ivec2 sourceCeilCR = ivec2(ceil(sourceFracIndexCR));\n\n          float topLeft = getImage(b, sourceFloorCR.y, sourceFloorCR.x, d);\n          float bottomLeft = getImage(b, sourceCeilCR.y, sourceFloorCR.x, d);\n          float topRight = getImage(b, sourceFloorCR.y, sourceCeilCR.x, d);\n          float bottomRight = getImage(b, sourceCeilCR.y, sourceCeilCR.x, d);\n\n          vec2 fracCR = sourceFracIndexCR - vec2(sourceFloorCR);\n\n          float top = topLeft + (topRight - topLeft) * fracCR.x;\n          float bottom = bottomLeft + (bottomRight - bottomLeft) * fracCR.x;\n          float newValue = top + (bottom - top) * fracCR.y;\n          setOutput(newValue);\n        } else {\n          // Compute the coordinators of nearest neighbor point.\n          ivec2 sourceNearestCR = ivec2(floor(\n            sourceFracIndexCR + vec2(0.5,0.5)));\n          float newValue = getImage(b, sourceNearestCR.y, sourceNearestCR.x, d);\n          setOutput(newValue);\n        }\n      }\n    "},lr=function(t,e,n){this.variableNames=["x"];var r=(this.outputShape=t).length,o=t[t.length-1],i=n?"<":">";this.userCode="\n      int getIndex(int i) {\n        "+(n?"return "+o+" -i - 1;":"return i;")+"\n      }\n\n      void main() {\n        "+Dn(r)+" coords = getOutputCoords();\n        int end = "+hr(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          "+hr(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 hr(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 pr=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}(),fr=function(t){this.variableNames=["A"];var e=wn();this.outputShape=t,this.userCode="\n      const float FLOAT_MAX = 1.70141184e38;\n      const float FLOAT_MIN = 1.17549435e-38;\n\n      lowp vec4 encode_float(highp float v) {\n        if (isnan(v)) {\n          return vec4(255, 255, 255, 255);\n        }\n\n        highp float av = abs(v);\n\n        if(av < FLOAT_MIN) {\n          return vec4(0.0, 0.0, 0.0, 0.0);\n        } else if(v > FLOAT_MAX) {\n          return vec4(0.0, 0.0, 128.0, 127.0) / 255.0;\n        } else if(v < -FLOAT_MAX) {\n          return vec4(0.0, 0.0,  128.0, 255.0) / 255.0;\n        }\n\n        highp vec4 c = vec4(0,0,0,0);\n\n        highp float e = floor(log2(av));\n        highp float m = exp2(fract(log2(av))) - 1.0;\n\n        c[2] = floor(128.0 * m);\n        m -= c[2] / 128.0;\n        c[1] = floor(32768.0 * m);\n        m -= c[1] / 32768.0;\n        c[0] = floor(8388608.0 * m);\n\n        highp float ebias = e + 127.0;\n        c[3] = floor(ebias / 2.0);\n        ebias -= c[3] * 2.0;\n        c[2] += floor(ebias) * 128.0;\n\n        c[3] += 128.0 * step(0.0, -v);\n\n        return c / 255.0;\n      }\n\n      void main() {\n        float x = getAAtOutCoords();\n        "+e.output+" = encode_float(x);\n      }\n    "},dr="return real * expR - imag * expI;",vr="return real * expI + imag * expR;",mr=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    "},gr=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(n){var r=this;return function(t,e){null==r.valueLoc&&(r.valueLoc=t.getUniformLocationNoThrow(e,"value")),t.gl.uniform1f(r.valueLoc,n)}},t}(),yr=function(t){this.variableNames=["A"];var e=wn(),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    "},xr=function(t,e,n){this.variableNames=["A","indices"];var r=t.slice();r[n]=e,this.outputShape=r,this.rank=r.length;var o=Dn(this.rank),i=function(t,e){var n=t.length;if(4<n)throw Error("Gather for rank "+n+" is not yet supported");if(1===n)return"int(getIndices(resRC))";for(var r=["resRC.x","resRC.y","resRC.z","resRC.w"],o=[],i=0;i<t.length;i++)i===e?o.push("int(getIndices("+r[i]+"))"):o.push(""+r[i]);return o.join()}(t,n);this.userCode="\n      void main() {\n        "+o+" resRC = getOutputCoords();\n        setOutput(getA("+i+"));\n      }\n    "};var wr,br,Er,Cr,_r=function(t,e,n){this.sliceDim=t,this.strides=e,this.variableNames=["x","indices"],this.outputShape=n;var r=Dn(e.length),o=Dn(n.length),i=1<this.sliceDim?"strides[j]":"strides";this.userCode="\n  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Do=Object.freeze({createVertexShader:lo,createVertexBuffer:ho,createIndexBuffer:po,getTextureConfig:fo,createFloat32MatrixTexture:mo,createFloat16MatrixTexture:go,createUnsignedBytesMatrixTexture:yo,createPackedMatrixTexture:xo,createFloat16PackedMatrixTexture:wo,bindVertexProgramAttributeStreams:bo,uploadPixelDataToTexture:Eo,uploadMatrixToTexture:_o,uploadMatrixToPackedTexture:So,maybeCreateBufferFromOutputTexture:Ro,downloadFloat32MatrixFromBuffer:No,downloadFloat32MatrixFromOutputTexture:ko,downloadByteEncodedFloatMatrixFromOutputTexture:Io,downloadPackedMatrixFromBuffer:To,downloadMatrixFromPackedOutputTexture:Ao}),Mo=function(){function t(t){this.outputTexture=null,this.program=null,this.disposed=!1,this.vertexAttrsAreBound=!1,this.itemsToPoll=[];var 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this.throwIfDisposed(),So(this.gl,this.debug,t,e,n,r,o,i,a,this.textureConfig)},t.prototype.downloadFloat32MatrixFromOutputTexture=function(t,e,n){var r=this;return this.downloadMatrixDriver(t,function(){return ko(r.gl,r.debug,e,n,r.textureConfig)})},t.prototype.downloadByteEncodedFloatMatrixFromOutputTexture=function(t,e,n){var r=this;return this.downloadMatrixDriver(t,function(){return Io(r.gl,r.debug,e,n,r.textureConfig)})},t.prototype.downloadPackedMatrixFromBuffer=function(t,e,n,r,o,i){return To(this.gl,t,e,n,r,o,i,this.textureConfig)},t.prototype.downloadFloat32MatrixFromBuffer=function(t,e,n){return No(this.gl,t,e,n,this.textureConfig)},t.prototype.maybeCreateBufferFromTexture=function(t,e,n){this.bindTextureToFrameBuffer(t);var r=Ro(this.gl,this.debug,t,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(Zt.get("WEBGL_FENCE_API_ENABLED")){var o=t,i=o.fenceSync(o.SYNC_GPU_COMMANDS_COMPLETE,0);t.flush(),n=function(){var t=o.clientWaitSync(i,0,0);return t===o.ALREADY_SIGNALED||t===o.CONDITION_SATISFIED},e=i}else n=0<Zt.get("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")?(e=this.beginQuery(),this.endQuery(),function(){return r.isQueryAvailable(e,Zt.get("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))}):function(){return!0};return{query:e,isFencePassed:n}},t.prototype.downloadMatrixFromPackedTexture=function(t,e,n,r,o,i){var a=this;return this.downloadMatrixDriver(t,function(){return Ao(a.gl,a.debug,e,n,r,o,i,a.textureConfig)})},t.prototype.createProgram=function(t){this.throwIfDisposed();var e=this.gl,n=Fr(e,this.debug,t),r=lo(e,this.debug),o=Br(e,this.debug);return Ar(e,this.debug,function(){return e.attachShader(o,r)}),Ar(e,this.debug,function(){return 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r.beginQueryEXT(r.TIME_ELAPSED_EXT,o),o},t.prototype.endQuery=function(){if(2!==Zt.get("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(n){return m(this,void 0,void 0,function(){var e=this;return R(this,function(t){switch(t.label){case 0:return[4,S(function(){return e.disposed||e.isQueryAvailable(n,Zt.get("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))})];case 1:return t.sent(),[2,this.getQueryTime(n,Zt.get("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)return o=(r=this.getQueryTimerExtensionWebGL1()).getQueryObjectEXT(t,r.QUERY_RESULT_AVAILABLE_EXT),null==this.disjoint&&(this.disjoint=this.gl.getParameter(r.GPU_DISJOINT_EXT)),o&&!this.disjoint;var n=this.gl,r=this.getQueryTimerExtensionWebGL2(),o=n.getQueryParameter(t,n.QUERY_RESULT_AVAILABLE);return null==this.disjoint&&(this.disjoint=this.gl.getParameter(r.GPU_DISJOINT_EXT)),o&&!this.disjoint},t.prototype.pollFence=function(e){var n=this;return new Promise(function(t){n.addItemToPoll(function(){return e.isFencePassed()},function(){return t()})})},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}),1<this.itemsToPoll.length||S(function(){return n.pollItems(),0===n.itemsToPoll.length})},t.prototype.bindTextureToFrameBuffer=function(t){this.throwIfDisposed(),Jr(this.gl,this.debug,t,this.framebuffer),this.debug&&to(this.gl)},t.prototype.unbindTextureToFrameBuffer=function(){null!=this.outputTexture?(Jr(this.gl,this.debug,this.outputTexture,this.framebuffer),this.debug&&to(this.gl)):Zr(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;Jr(r,this.debug,t,this.framebuffer),this.debug&&to(r),this.outputTexture=t,Ar(r,this.debug,function(){return r.viewport(0,0,e,n)}),Ar(r,this.debug,function(){return r.scissor(0,0,e,n)})},t.prototype.setOutputMatrixWriteRegionDriver=function(t,e,n,r){var o=this;this.throwIfDisposed(),Ar(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 Oo(t,s){if(t.length!==s.length)throw Error("Binary was compiled with "+t.length+" inputs, but was executed with "+s.length+" inputs");t.forEach(function(t,e){var n=t.logicalShape,r=s[e],o=r.shape;if(!E(n,o))throw Error("Binary was compiled with different shapes than the current args. Shapes "+n+" and "+o+" must match");if(!t.isUniform||!r.isUniform){var i=t.texShape,a=r.isUniform?null:r.texData.texShape;if(!E(i,a))throw Error("Binary was compiled with different texture shapes than the current args. Shape "+i+" and "+a+" must match")}})}var Po=function(t,e,n){this.variableNames=["A"],this.usesPackedTextures=!0,this.outputShape=t;var r=n.filterWidth,o=n.inChannels,i=n.strideWidth,a=n.strideHeight,s=n.padInfo,u=n.outWidth,c=n.dilationWidth,l=n.dilationHeight,h=s.left,p=s.top,f=o*r,d=wn();this.userCode="\n      void main() {\n        ivec2 rc = getOutputCoords();\n\n        vec4 result = vec4(0);\n\n        for(int row=0; row<=1; row++) {\n          for(int col=0; col<=1; col++) {\n            int blockIndex = rc.y + col;\n            int pos = rc.x + row;\n\n            if(blockIndex >= "+t[1]+" || pos >= "+t[0]+") continue;\n\n            int offsetY = int(blockIndex / ("+u+")) * "+a+" - "+p+";\n            int d0 = offsetY + "+l+" * (pos / "+f+");\n\n            if(d0 >= "+e[0]+" || d0 < 0) continue;\n\n            int offsetX = int(mod(float(blockIndex), "+u+".) * "+i+". - "+h+".);\n            int d1 = offsetX + "+c+" * (int(mod(float(pos), "+f+".) / "+o+".));\n\n            if(d1 >= "+e[1]+" || d1 < 0) continue;\n\n            vec2 innerDims = vec2(d1, int(mod(float(pos), "+o+".)));\n            result[row * 2 + col] = getChannel(getA(d0, int(innerDims.x),\n                                              int(innerDims.y)), innerDims);\n          }\n        }\n\n        "+d.output+" = result;\n      }\n    "},Fo=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    "},Lo=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    "},Bo=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    "},Wo=function(t,e,n,r,o,i){void 0===n&&(n=!1),void 0===r&&(r=!1),void 0===o&&(o=!1),void 0===i&&(i=null),this.variableNames=["matrixA","matrixB"],this.usesPackedTextures=!0,this.outputShape=e;var a=n?t[1]:t[2],s=Math.ceil(a/2),u=n?"i * 2, rc.y":"rc.y, i * 2",c=r?"rc.z, i * 2":"i * 2, rc.z",l=n?["a.xxyy","a.zzww"]:["a.xxzz","a.yyww"],h=r?["b.xzxz","b.ywyw"]:["b.xyxy","b.zwzw"],p="",f="";i&&(p="vec4 activation(vec4 x) {\n        "+i+"\n      }",f="result = activation(result);");var d=o?"result += getBiasAtOutCoords();":"";o&&this.variableNames.push("bias"),this.userCode="\n      "+p+"\n\n      const float sharedDimension = "+s+".0;\n\n      vec4 dot2x2ARowBCol(ivec3 rc) {\n        vec4 result = vec4(0);\n        for (int i = 0; i < "+s+"; i++) {\n          vec4 a = getMatrixA(rc.x, "+u+");\n          vec4 b = getMatrixB(rc.x, "+c+");\n\n          result += ("+l[0]+" * "+h[0]+") + ("+l[1]+" * "+h[1]+");\n        }\n        return result;\n      }\n\n      void main() {\n        ivec3 rc = getOutputCoords();\n        vec4 result = dot2x2ARowBCol(rc);\n\n        "+d+"\n\n        "+f+"\n\n        setOutput(result);\n      }\n    "},zo=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(n){var r=this;return function(t,e){null==r.seedLoc&&(r.seedLoc=t.getUniformLocation(e,"seed")),t.gl.uniform1f(r.seedLoc,n)}},t}(),Uo=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    "},Go=function(t){this.variableNames=["A"],this.isPackShader=!0;var e,n,r,o,i=(this.outputShape=t).length;if(0===i)this.userCode="\n        void main() {\n          setOutput(vec4(getA(), 0., 0., 0.));\n        }\n      ";else{var a=mn("rc",i),s=Dn(i),u=function(t,e,n){if(1===t)return"rc > "+e[0];for(var r="",o=t-2;o<t;o++)r+=n[o]+" >= "+e[o],o<t-1&&(r+="||");return r}(i,t,a),c=function(t,e,n,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  "}(i,t[t.length-1],t[t.length-2],a),l=(n=a,r=(e=t).length,o=function(t,e){for(var n=[],r=0;r<=1;r++)for(var o=0;o<=1;o++){for(var i=(0===r?"r":"rp1")+", "+(0===o?"c":"cp1"),a=2;a<t;a++)i=e[e.length-1-a]+","+i;n.push(i)}return n}(r,n),1===r?"getA(rc),\n            rc + 1 >= "+e[0]+" ? 0. : getA(rc + 1),\n            0, 0":"getA("+o[0]+"),\n          cEdge ? 0. : getA("+o[1]+"),\n          rEdge ? 0. : getA("+o[2]+"),\n          rEdge || cEdge ? 0. : getA("+o[3]+")");this.userCode="\n        void main() {\n          "+s+" rc = getOutputCoords();\n\n          if("+u+") {\n            setOutput(vec4(0));\n          } else {\n            "+c+"\n\n            setOutput(vec4("+l+"));\n          }\n        }\n      "}};var Vo=function(n,t,e){this.variableNames=["x"],this.outputShape=t.map(function(t,e){return t[0]+n[e]+t[1]});var r=n.length,o=Dn(r),i=t.map(function(t){return t[0]}).join(","),a=t.map(function(t,e){return t[0]+n[e]}).join(","),s=["coords[0]","coords[1]","coords[2]","coords[3]"].slice(0,r);this.userCode=1!==r?"\n      "+o+" start = "+o+"("+i+");\n      "+o+" end = "+o+"("+a+");\n\n      void main() {\n        "+o+" outC = getOutputCoords();\n        if (any(lessThan(outC, start)) || any(greaterThanEqual(outC, end))) {\n          setOutput(float("+e+"));\n        } else {\n          "+o+" coords = outC - start;\n          setOutput(getX("+s+"));\n        }\n      }\n    ":"\n        int start = "+i+";\n        int end = "+a+";\n\n        void main() {\n          int outC = getOutputCoords();\n          if (outC < start || outC >= end) {\n            setOutput(float("+e+"));\n          } else {\n            setOutput(getX(outC - start));\n          }\n        }\n      "},Ho=function(n,t,e){this.variableNames=["x"],this.usesPackedTextures=!0,this.outputShape=t.map(function(t,e){return t[0]+n[e]+t[1]});for(var r=n.length,o=Dn(r),i=t.map(function(t){return t[0]}).join(","),a=t.map(function(t,e){return t[0]+n[e]}).join(","),s=mn("rc",r),u=mn("source",r),c=s[r-1]+" < "+this.outputShape[r-1],l=1===r?"source":"vec2("+u.slice(-2).join()+")",h=[o+" rc = outputLoc;",s[r-1]+" += 1;\n       if("+c+") {\n      ",1===r?"":"}\n       rc = outputLoc;\n       "+s[r-2]+" += 1;\n       if("+s[r-2]+" < "+this.outputShape[r-2]+") {",1===r?"":"  "+s[r-1]+" += 1;\n         if("+c+") {"],p=1===r?"rc < start || rc >= end":"any(lessThan(rc, start)) || any(greaterThanEqual(rc, end))",f="",d=0,v=1===r?2:4;d<v;d++)f+="\n        "+h[d]+"\n        if ("+p+") {\n          result["+d+"] = float("+e+");\n        } else {\n          "+o+" source = rc - start;\n          result["+d+"] = getChannel(getX("+u.join()+"), "+l+");\n        }\n      ";f+=1===r?"} ":"}}",this.userCode="\n      const "+o+" start = "+o+"("+i+");\n      const "+o+" end = "+o+"("+a+");\n\n      void main() {\n        "+o+" outputLoc = getOutputCoords();\n        vec4 result = vec4(0.);\n        "+f+"\n        setOutput(result);\n      }\n    "},qo=function(t,e,n){if(this.variableNames=["x"],"avg"===e&&n)throw new Error("Cannot compute positions for average pool.");var r=t.filterWidth,o=t.strideHeight,i=t.strideWidth,a=t.dilationHeight,s=t.dilationWidth,u=t.effectiveFilterHeight,c=t.effectiveFilterWidth,l=t.padInfo.top,h=t.padInfo.left;this.outputShape=t.outShape;var p="avg"===e,f="0.0";if(p||(f="-1.0 / 1e-20"),n)this.userCode="\n        const ivec2 strides = ivec2("+o+", "+i+");\n        const ivec2 pads = ivec2("+l+", "+h+");\n\n        void main() {\n          ivec4 coords = getOutputCoords();\n          int batch = coords[0];\n          int d = coords[3];\n\n          ivec2 xRCCorner = coords.yz * strides - pads;\n          int xRCorner = xRCCorner.x;\n          int xCCorner = xRCCorner.y;\n\n          // max/min x(?, ?, d) to get y(yR, yC, d).\n          // ? = to be determined\n          float minMaxValue = 0.0;\n          float minMaxValueFound = 0.0;\n          int minMaxPosition = 0;\n          float avgValue = 0.0;\n\n          for (int wR = 0; wR < "+u+";\n              wR += "+a+") {\n            int xR = xRCorner + wR;\n\n            if (xR < 0 || xR >= "+t.inHeight+") {\n              continue;\n            }\n\n            for (int wC = 0; wC < "+c+";\n                wC += "+s+") {\n              int xC = xCCorner + wC;\n\n              if (xC < 0 || xC >= "+t.inWidth+") {\n                continue;\n              }\n\n              float value = getX(batch, xR, xC, d);\n\n              // If a min / max value has already been found, use it. If not,\n              // use the current value.\n              float currMinMaxValue = mix(\n                  value, minMaxValue, minMaxValueFound);\n              if (value >= currMinMaxValue) {\n                minMaxValue = value;\n                minMaxValueFound = 1.0;\n                minMaxPosition = wR * "+c+" + wC;\n              }\n            }\n          }\n          setOutput(float(minMaxPosition));\n        }\n      ";else{var d=e+"("+e+"("+e+"(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])";"avg"===e&&(d="avgValue / count");var v=4*Math.floor(r/4),m=r%4,g="\n      if ("+p+") {\n        avgValue += dot(values, ones);\n      } else {\n        minMaxValue = max(values, minMaxValue);\n      }\n    ";this.userCode="\n      const ivec2 strides = ivec2("+o+", "+i+");\n      const ivec2 pads = ivec2("+l+", "+h+");\n      const float initializationValue = "+f+";\n      const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0);\n\n      float count = 0.0;\n\n      float getValue(int batch, int xR, int xC, int d) {\n        if (xC < 0 || xC >= "+t.inWidth+") {\n          return initializationValue;\n        }\n        count += 1.0;\n        return getX(batch, xR, xC, d);\n      }\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int batch = coords[0];\n        int d = coords[3];\n\n        ivec2 xRCCorner = coords.yz * strides - pads;\n        int xRCorner = xRCCorner.x;\n        int xCCorner = xRCCorner.y;\n\n        // max/min x(?, ?, d) to get y(yR, yC, d).\n        // ? = to be determined\n        vec4 minMaxValue = vec4("+f+");\n        float avgValue = 0.0;\n        count = 0.0;\n\n        for (int wR = 0; wR < "+u+";\n            wR += "+a+") {\n          int xR = xRCorner + wR;\n\n          if (xR < 0 || xR >= "+t.inHeight+") {\n            continue;\n          }\n\n          for (int wC = 0; wC < "+v+"; wC += 4) {\n            int xC = xCCorner + wC * "+s+";\n\n            vec4 values = vec4(\n              getValue(batch, xR, xC, d),\n              getValue(batch, xR, xC + "+s+", d),\n              getValue(batch, xR, xC + 2 * "+s+", d),\n              getValue(batch, xR, xC + 3 * "+s+", d)\n            );\n\n            "+g+"\n          }\n\n          int xC = xCCorner + "+v+";\n          if ("+(1===m)+") {\n            vec4 values = vec4(\n              getValue(batch, xR, xC, d),\n              initializationValue,\n              initializationValue,\n              initializationValue\n            );\n\n            "+g+"\n          } else if ("+(2===m)+") {\n            vec4 values = vec4(\n              getValue(batch, xR, xC, d),\n              getValue(batch, xR, xC + "+s+", d),\n              initializationValue,\n              initializationValue\n            );\n\n            "+g+"\n          } else if ("+(3===m)+") {\n            vec4 values = vec4(\n              getValue(batch, xR, xC, d),\n              getValue(batch, xR, xC + "+s+", d),\n              getValue(batch, xR, xC + 2 * "+s+", d),\n              initializationValue\n            );\n\n            "+g+"\n          }\n        }\n        setOutput("+d+");\n      }\n    "}},jo=function(t,e){this.variableNames=["x"];var n=t.windowSize,r=t.batchSize,o=t.inSize,i=Math.ceil(o/n);this.outputShape=[r,i];var a="0.0",s="";"prod"===e?a="1.0":"min"===e?(a="1.0 / 1e-20",s="min"):"max"===e&&(a="-1.0 / 1e-20",s="max");var u=e+"("+e+"("+e+"(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])";"sum"===e?u="sumValue":"prod"===e?u="prodValue":"all"===e?u="allValue":"any"===e&&(u="anyValue");var c=4*Math.floor(n/4),l=n%4,h="\n      if ("+("sum"===e)+") {\n        sumValue += dot(values, ones);\n      } else if ("+("prod"===e)+") {\n        vec2 tmp = vec2(values[0], values[1]) * vec2(values[2], values[3]);\n        prodValue *= tmp[0] * tmp[1];\n      } else {\n        minMaxValue = "+s+"(values, minMaxValue);\n      }\n    ",p="vec4";"all"===e?(a="1.0",h="\n        bool reducedAllValue = all(values);\n        float floatedReducedAllValue = float(reducedAllValue);\n        allValue = float(allValue >= 1.0 && floatedReducedAllValue >= 1.0);\n      ",p="bvec4"):"any"===e&&(a="0.0",h="\n        bool reducedAnyValue = any(values);\n        float floatedReducedAnyValue = float(reducedAnyValue);\n        anyValue = float(anyValue >= 1.0 || floatedReducedAnyValue >= 1.0);\n      ",p="bvec4");var f="";0<o%n&&(f="\n        if (inIdx < 0 || inIdx >= "+o+") {\n          return initializationValue;\n        }\n      "),this.userCode="\n      const float initializationValue = "+a+";\n      const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0);\n\n      float getValue(int batch, int inIdx) {\n        "+f+"\n        return getX(batch, inIdx);\n      }\n\n      void main() {\n        ivec2 coords = getOutputCoords();\n        int batch = coords[0];\n        int outIdx = coords[1];\n        int inOffset = outIdx * "+n+";\n\n        vec4 minMaxValue = vec4("+a+");\n        float prodValue = 1.0;\n        float sumValue = 0.0;\n        float allValue = 1.0;\n        float anyValue = 0.0;\n\n        for (int i = 0; i < "+c+"; i += 4) {\n          int inIdx = inOffset + i;\n          "+p+" values = "+p+"(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            getValue(batch, inIdx + 2),\n            getValue(batch, inIdx + 3)\n          );\n\n          "+h+"\n        }\n\n        int inIdx = inOffset + "+c+";\n        if ("+(1===l)+") {\n          "+p+" values = "+p+"(\n            getValue(batch, inIdx),\n            initializationValue,\n            initializationValue,\n            initializationValue\n          );\n\n          "+h+"\n        } else if ("+(2===l)+") {\n          "+p+" values = "+p+"(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            initializationValue,\n            initializationValue\n          );\n\n          "+h+"\n        } else if ("+(3===l)+") {\n          "+p+" values = "+p+"(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            getValue(batch, inIdx + 2),\n            initializationValue\n          );\n\n          "+h+"\n        }\n        setOutput("+u+");\n      }\n    "},$o=function(t,e){this.variableNames=["A"],this.usesPackedTextures=!0,this.outputShape=t;for(var n="",r=0;r<4;r++){var o="thisRC = rc;";r%2==1&&(o+="thisRC.z += 1;"),1<r&&(o+="thisRC.y += 1;"),n+="\n        "+o+"\n        "+(0<r?"if(thisRC.y < rows && thisRC.z < cols){":"")+"\n          int flatIndex = getFlatIndex(thisRC);\n\n          ivec3 inputRC = inputCoordsFromReshapedOutCoords(flatIndex);\n          vec2 inputRCInnerDims = vec2(float(inputRC.y),float(inputRC.z));\n\n          result["+r+"] =\n            getChannel(getA(inputRC.x, inputRC.y, inputRC.z), inputRCInnerDims);\n        "+(0<r?"}":"")+"\n      "}this.userCode="\n      \n    ivec3 inputCoordsFromReshapedOutCoords(int index) {\n      "+bn(["r","c","d"],e)+"\n      return ivec3(r, c, d);\n    }\n  \n      \n    int getFlatIndex(ivec3 coords) {\n      return round("+function(t,e){if(t.length!==e.length)throw new Error("Vectors to be dotted must be of the same length -got "+t.length+" and "+e.length);for(var n=[],r=Math.floor(t.length/4),o=t.length%4,i=0;i<r;i++){var a=t.slice(4*i,4*i+4),s=e.slice(4*i,4*i+4);n.push(En(a)+", "+En(s))}return 0!==o&&(a=t.slice(4*r),s=e.slice(4*r),1===a.length&&(a=a.map(function(t){return"float("+t+")"}),s=s.map(function(t){return"float("+t+")"})),n.push(En(a)+", "+En(s))),n.map(function(t,e){return"dot("+t+")"}).join("+")}(["coords.x","coords.y","coords.z"],K(t).map(function(t){return t.toString()}).concat(["1."]))+");\n    }\n  \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    "};var Ko=function(t,e,n){this.variableNames=["dy"],this.outputShape=[],this.outputShape=e.shape;var r=e.shape,o=r[1],i=r[2],a=t.shape,s=a[1],u=a[2],c=[n&&1<s?o-1:o,n&&1<u?i-1:i],l=[n&&1<s?s-1:s,n&&1<u?u-1:u],h=c[0]/l[0],p=c[1]/l[1],f=1/h,d=1/p,v=2*Math.ceil(f)+2,m=2*Math.ceil(d)+2;this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n        int r = coords[1];\n        int c = coords[2];\n\n        float accumulator = 0.0;\n\n        const float heightScale = float("+h+");\n        const float widthScale = float("+p+");\n\n        const float invHeightScale = float("+f+");\n        const float invWidthScale = float("+d+");\n\n        const int winHeight = int("+v+");\n        const int winWidth = int("+m+");\n\n        // Compute bounds for where in dy we will look\n        float startRLerp = floor(float(r) * invHeightScale);\n        int startDyR = int(startRLerp - float(winHeight / 2));\n\n        float startCLerp = floor(float(c) * invWidthScale);\n        int startDyC = int(startCLerp - float(winWidth / 2));\n\n        // Loop over dy\n        for (int dyROffset = 0; dyROffset < winHeight; dyROffset++) {\n          int dyR = dyROffset + startDyR;\n\n          // Guard against the window exceeding the bounds of dy\n          if (dyR < 0 || dyR >= "+s+") {\n            continue;\n          }\n\n          for (int dyCOffset = 0; dyCOffset < winWidth; dyCOffset++) {\n            int dyC = dyCOffset + startDyC;\n\n            // Guard against the window exceeding the bounds of dy\n            if (dyC < 0 || dyC >= "+u+") {\n              continue;\n            }\n\n            float dxR = float(dyR) * heightScale;\n            int topDxRIndex = int(floor(dxR));\n            int bottomDxRIndex = int(min(ceil(dxR), "+(o-1)+".0));\n            float dxRLerp = dxR - float(topDxRIndex);\n            float inverseDxRLerp = 1.0 - dxRLerp;\n\n            float dxC = float(dyC) * widthScale;\n            int leftDxCIndex = int(floor(dxC));\n            int rightDxCIndex = int(min(ceil(dxC), "+(i-1)+".0));\n            float dxCLerp = dxC - float(leftDxCIndex);\n            float inverseDxCLerp = 1.0 - dxCLerp;\n\n            if (r == topDxRIndex && c == leftDxCIndex) {\n              // topLeft\n              accumulator +=\n                getDy(b, dyR, dyC, d) * inverseDxRLerp * inverseDxCLerp;\n            }\n\n            if (r == topDxRIndex && c == rightDxCIndex) {\n              // topRight\n              accumulator += getDy(b, dyR, dyC, d) * inverseDxRLerp * dxCLerp;\n            }\n\n            if (r == bottomDxRIndex && c == leftDxCIndex) {\n              // bottomLeft\n              accumulator += getDy(b, dyR, dyC, d) * dxRLerp * inverseDxCLerp;\n            }\n\n            if (r == bottomDxRIndex && c == rightDxCIndex) {\n              // bottomRight\n              accumulator += getDy(b, dyR, dyC, d) * dxRLerp * dxCLerp;\n            }\n          }\n        }\n        // End loop over dy\n\n        setOutput(accumulator);\n      }\n    "},Xo=function(t,e,n,r){this.variableNames=["A"],this.outputShape=[];var o=t[0],i=t[1],a=t[2],s=t[3];this.outputShape=[o,e,n,s];var u=[r&&1<e?i-1:i,r&&1<n?a-1:a],c=[r&&1<e?e-1:e,r&&1<n?n-1:n];this.userCode="\n      const vec2 effectiveInputOverOutputRatioRC = vec2(\n          "+u[0]/c[0]+",\n          "+u[1]/c[1]+");\n      const vec2 inputShapeRC = vec2("+i+".0, "+a+".0);\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n        ivec2 yRC = coords.yz;\n\n        // Fractional source index.\n        vec2 sourceFracIndexRC = vec2(yRC) * effectiveInputOverOutputRatioRC;\n\n        // Compute the four integer indices.\n        ivec2 sourceFloorRC = ivec2(sourceFracIndexRC);\n        ivec2 sourceCeilRC = ivec2(\n          min(inputShapeRC - 1.0, ceil(sourceFracIndexRC)));\n\n        float topLeft = getA(b, sourceFloorRC.x, sourceFloorRC.y, d);\n        float bottomLeft = getA(b, sourceCeilRC.x, sourceFloorRC.y, d);\n        float topRight = getA(b, sourceFloorRC.x, sourceCeilRC.y, d);\n        float bottomRight = getA(b, sourceCeilRC.x, sourceCeilRC.y, d);\n\n        vec2 fracRC = sourceFracIndexRC - vec2(sourceFloorRC);\n\n        float top = topLeft + (topRight - topLeft) * fracRC.y;\n        float bottom = bottomLeft + (bottomRight - bottomLeft) * fracRC.y;\n        float newValue = top + (bottom - top) * fracRC.x;\n\n        setOutput(newValue);\n      }\n    "},Yo=function(t,e,n,r){this.variableNames=["A"],this.usesPackedTextures=!0,this.outputShape=[];var o=t[0],i=t[1],a=t[2],s=t[3];this.outputShape=[o,e,n,s];var u=[r&&1<e?i-1:i,r&&1<n?a-1:a],c=[r&&1<e?e-1:e,r&&1<n?n-1:n];this.userCode="\n      const vec3 effectiveInputOverOutputRatioRC = vec3(\n          "+u[0]/c[0]+",\n          "+u[1]/c[1]+",\n          "+u[1]/c[1]+");\n      const vec3 inputShapeRC = vec3("+i+".0, "+a+".0,\n                                     "+a+".0);\n\n      float getAValue(int b, int r, int c, int d) {\n        return getChannel(getA(b, r, c, d), vec2(c, d));\n      }\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n        // Calculate values for next column in yRC.z.\n        ivec3 yRC = coords.yzz + ivec3(0, 0, 1);\n\n        // Fractional source index.\n        vec3 sourceFracIndexRC = vec3(yRC) * effectiveInputOverOutputRatioRC;\n\n        // Compute the four integer indices.\n        ivec3 sourceFloorRC = ivec3(sourceFracIndexRC);\n        ivec3 sourceCeilRC = ivec3(\n          min(inputShapeRC - 1.0, ceil(sourceFracIndexRC)));\n        \n        // Should we calculate next column and row elements in 2x2 packed cell.\n        bool hasNextCol = d < "+(s-1)+"; \n        bool hasNextRow = coords.z < "+(n-1)+";\n\n        // In parallel, construct four corners for all four components in\n        // packed 2x2 cell.\n        vec4 topLeft = vec4(\n          getAValue(b, sourceFloorRC.x, sourceFloorRC.y, d),\n          hasNextCol ? getAValue(b, sourceFloorRC.x, sourceFloorRC.y, d + 1)\n                     : 0.0,\n          hasNextRow ? getAValue(b, sourceFloorRC.x, sourceFloorRC.z, d)\n                     : 0.0,\n          (hasNextRow && hasNextCol) ?\n            getAValue(b, sourceFloorRC.x, sourceFloorRC.z, d + 1) : 0.0);\n\n        vec4 bottomLeft = vec4(\n          getAValue(b, sourceCeilRC.x, sourceFloorRC.y, d),\n          hasNextCol ? getAValue(b, sourceCeilRC.x, sourceFloorRC.y, d + 1)\n                     : 0.0,\n          hasNextRow ? getAValue(b, sourceCeilRC.x, sourceFloorRC.z, d)\n                     : 0.0,\n          (hasNextRow && hasNextCol) ?\n            getAValue(b, sourceCeilRC.x, sourceFloorRC.z, d + 1) : 0.0);\n\n        vec4 topRight = vec4(\n          getAValue(b, sourceFloorRC.x, sourceCeilRC.y, d),\n          hasNextCol ? getAValue(b, sourceFloorRC.x, sourceCeilRC.y, d + 1)\n                     : 0.0,\n          hasNextRow ? getAValue(b, sourceFloorRC.x, sourceCeilRC.z, d)\n                     : 0.0,\n          (hasNextRow && hasNextCol) ?\n            getAValue(b, sourceFloorRC.x, sourceCeilRC.z, d + 1) : 0.0);\n\n        vec4 bottomRight = vec4(\n          getAValue(b, sourceCeilRC.x, sourceCeilRC.y, d),\n          hasNextCol ? getAValue(b, sourceCeilRC.x, sourceCeilRC.y, d + 1)\n                     : 0.0,\n          hasNextRow ? getAValue(b, sourceCeilRC.x, sourceCeilRC.z, d)\n                     : 0.0,\n          (hasNextRow && hasNextCol) ?\n            getAValue(b, sourceCeilRC.x, sourceCeilRC.z, d + 1) : 0.0);\n\n        vec3 fracRC = sourceFracIndexRC - vec3(sourceFloorRC);\n\n        vec4 top = mix(topLeft, topRight, fracRC.yyzz);\n        vec4 bottom = mix(bottomLeft, bottomRight, fracRC.yyzz);\n        vec4 newValue = mix(top, bottom, fracRC.x);\n\n        setOutput(newValue);\n      }\n    "},Qo=function(t,e,n){this.variableNames=["dy"],this.outputShape=[],this.outputShape=e.shape;var r=e.shape,o=r[1],i=r[2],a=t.shape,s=a[1],u=a[2],c=[n&&1<s?o-1:o,n&&1<u?i-1:i],l=[n&&1<s?s-1:s,n&&1<u?u-1:u],h=c[0]/l[0],p=c[1]/l[1],f=1/h,d=1/p,v=2*Math.ceil(f)+2,m=2*Math.ceil(d)+2;this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n        int r = coords[1];\n        int c = coords[2];\n\n        float accumulator = 0.0;\n\n        const float heightScale = float("+h+");\n        const float widthScale = float("+p+");\n\n        const float invHeightScale = float("+f+");\n        const float invWidthScale = float("+d+");\n\n        const int winHeight = int("+v+");\n        const int winWidth = int("+m+");\n\n        // Compute bounds for where in dy we will look\n        float startRLerp = floor(float(r) * invHeightScale);\n        int startDyR = int(floor(startRLerp - float(winHeight / 2)));\n\n        float startCLerp = floor(float(c) * invWidthScale);\n        int startDyC = int(floor(startCLerp - float(winWidth / 2)));\n\n        // Loop over dy\n        for (int dyROffset = 0; dyROffset < winHeight; dyROffset++) {\n          int dyR = dyROffset + startDyR;\n\n          // Guard against the window exceeding the bounds of dy\n          if (dyR < 0 || dyR >= "+s+") {\n            continue;\n          }\n\n          for (int dyCOffset = 0; dyCOffset < winWidth; dyCOffset++) {\n            int dyC = dyCOffset + startDyC;\n\n            // Guard against the window exceeding the bounds of dy\n            if (dyC < 0 || dyC >= "+u+") {\n              continue;\n            }\n\n            float sourceFracRow =\n              float("+c[0]+") *\n                (float(dyR) / float("+l[0]+"));\n\n            float sourceFracCol =\n                float("+c[1]+") *\n                  (float(dyC) / float("+l[1]+"));\n\n            int sourceNearestRow = int(min(\n                float(int("+o+") - 1),\n                "+n+" ? float(round(sourceFracRow)) :\n                                  float(floor(sourceFracRow))));\n\n            int sourceNearestCol = int(min(\n                float(int("+i+") - 1),\n                "+n+" ? float(round(sourceFracCol)) :\n                                  float(floor(sourceFracCol))));\n\n            if (r == sourceNearestRow && c == sourceNearestCol) {\n              accumulator += getDy(b, dyR, dyC, d);\n            }\n          }\n        }\n        // End loop over dy\n\n        setOutput(accumulator);\n      }\n    "},Jo=function(t,e,n,r){this.variableNames=["A"],this.outputShape=[];var o=t[0],i=t[1],a=t[2],s=t[3];this.outputShape=[o,e,n,s];var u=[r&&1<e?i-1:i,r&&1<n?a-1:a],c=[r&&1<e?e-1:e,r&&1<n?n-1:n],l=r?"0.5":"0.0";this.userCode="\n      const vec2 effectiveInputOverOutputRatioRC = vec2(\n          "+u[0]/c[0]+",\n          "+u[1]/c[1]+");\n      const vec2 inputShapeRC = vec2("+i+".0, "+a+".0);\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n        ivec2 yRC = coords.yz;\n\n        // Fractional source index.\n        vec2 sourceFracIndexRC = vec2(yRC) * effectiveInputOverOutputRatioRC;\n\n        // Compute the coordinators of nearest neighbor point.\n        ivec2 sourceNearestRC = ivec2(\n          min(inputShapeRC - 1.0, floor(sourceFracIndexRC + "+l+")));\n\n        float newValue = getA(b, sourceNearestRC.x, sourceNearestRC.y, d);\n\n        setOutput(newValue);\n      }\n    "},Zo=function(r,o){this.variableNames=["x"];var t=r.length;if(4<t)throw new Error("WebGL backend: Reverse of rank-"+t+" tensor is not yet supported");if(this.outputShape=r,1!==t){var e=r.map(function(t,e){return n=e,-1!==o.indexOf(n)&&1!==r[n]?r[n]+" - coords["+n+"] - 1":"coords["+n+"]";var n}).join(","),n=Dn(t);this.userCode="\n      void main() {\n        "+n+" coords = getOutputCoords();\n        setOutput(getX("+e+"));\n      }\n    "}else this.userCode="\n        void main() {\n          int coord = getOutputCoords();\n          setOutput(getX("+r[0]+" - coord - 1));\n        }\n      "},ti=function(i,a){this.variableNames=["x"],this.usesPackedTextures=!0;var t=i.length;if(4<t)throw new Error("WebGL backend: Reverse of rank-"+t+" tensor is not yet supported");this.outputShape=i;var e,n,r,o=mn("rc",t),s=o[t-1]+" + 1 < "+this.outputShape[t-1],u=o[t-2]+" + 1 < "+this.outputShape[t-2],c=Dn(t);function l(o){var t=i.map(function(t,e){return n=e,r=o,-1!==a.indexOf(n)&&1!==i[n]?i[n]+" - "+r[n]+" - 1":""+r[n];var n,r});return"getChannel(getX("+t.join(",")+"), vec2("+t.slice(-2).join(",")+"))"}this.userCode=1===t?"\n        void main(){\n          int rc = getOutputCoords();\n          vec4 result = vec4(0.);\n          result.r = getChannel(getX("+i[0]+" - rc - 1), rc);\n          if("+s+"){\n              result.g = getChannel(getX("+i[0]+" - (rc  + 1) - 1), rc + 1);\n          }\n          setOutput(result);\n        }\n      ":"\n        void main() {\n          "+c+" rc = getOutputCoords();\n          vec4 result = vec4(0.);\n          result.r = "+l(o.slice())+";\n          if("+s+"){\n            result.g = "+((r=o.slice())[t-1]="("+r[t-1]+" + 1)",l(r))+";\n          }\n          if("+u+") {\n            result.b = "+((n=o.slice())[t-2]="("+n[t-2]+" + 1)",l(n))+";\n            if("+s+") {\n              result.a = "+((e=o.slice())[t-1]="("+e[t-1]+" + 1)",e[t-2]="("+e[t-2]+" + 1)",l(e))+";\n            }\n          }\n          setOutput(result);\n        }\n    "},ei=function(t,e,n,r,o,i,a){void 0===a&&(a=!0),this.variableNames=["updates","indices","defaultValue"],this.outputShape=i;var s=Dn(o.length),u=Dn(i.length),c="";1===n?c="i":2===n&&(c="i, j");var l="getIndices("+c+")",h="";1===r?h="i":2===r&&(h="i, coords[1]");var p="getUpdates("+h+")",f=1<e?"strides[j]":"strides";this.userCode="\n        "+s+" strides = "+s+"("+o+");\n\n        void main() {\n          "+u+" coords = getOutputCoords();\n          float sum = 0.0;\n          bool found = false;\n          for (int i = 0; i < "+t+"; i++) {\n            int flattenedIndex = 0;\n            for (int j = 0; j < "+e+"; j++) {\n              int index = round("+l+");\n              flattenedIndex += index * "+f+";\n            }\n            if (flattenedIndex == coords[0]) {\n              sum += "+p+";\n              found = true;\n            }\n          }\n          setOutput(mix(getDefaultValue(), sum, float(found)));\n        }\n      "},ni=function(t,e){this.variableNames=["x","segmentIds"];var n=t.windowSize,r=t.batchSize,o=t.inSize,i=t.numSegments,a=i*Math.ceil(o/n);this.outputShape=[r,a];var s=4*Math.floor(n/4),u=n%4,c="\n        sumValue += dot(values, segFilter);\n    ",l="";0<o%n&&(l="\n        if (inIdx < 0 || inIdx >= "+o+") {\n          return initializationValue;\n        }\n      ");var h="";0<o%n&&(h="\n        if (inIdx < 0 || inIdx >= "+o+") {\n          return -1.0;\n        }\n      "),this.userCode="\n      const float initializationValue = 0.0;\n\n      float getValue(int batch, int inIdx) {\n        "+l+"\n        return getX(batch, inIdx);\n      }\n\n      float getSegmentIdAtIndex(int inIdx) {\n        "+h+"\n        return getSegmentIds(inIdx);\n      }\n\n      void main() {\n        ivec2 coords = getOutputCoords();\n        int batch = coords[0];\n        int outIdx = coords[1];\n        int inOffset = int(floor(float(outIdx) / float(\n          "+i+")) * float("+n+"));\n        int currentSeg = int(mod(float(outIdx), float("+i+")));\n\n        float sumValue = 0.0;\n\n        for (int i = 0; i < "+s+"; i += 4) {\n          int inIdx = inOffset + i;\n          vec4 values = vec4(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            getValue(batch, inIdx + 2),\n            getValue(batch, inIdx + 3)\n          );\n\n          vec4 segFilter = vec4(\n            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 2)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 3)) == currentSeg ? 1 : 0\n          );\n\n          "+c+"\n        }\n\n        int inIdx = inOffset + "+s+";\n        if ("+(1===u)+") {\n          vec4 values = vec4(\n            getValue(batch, inIdx),\n            initializationValue,\n            initializationValue,\n            initializationValue\n          );\n\n          int inIdxSeg = int(getSegmentIdAtIndex(inIdx));\n\n          vec4 segFilter = vec4(\n            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,\n            0,\n            0,\n            0\n          );\n\n          "+c+"\n        } else if ("+(2===u)+") {\n          vec4 values = vec4(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            initializationValue,\n            initializationValue\n          );\n\n          vec4 segFilter = vec4(\n            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,\n              0,\n              0\n          );\n\n          "+c+"\n        } else if ("+(3===u)+") {\n          vec4 values = vec4(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            getValue(batch, inIdx + 2),\n            initializationValue\n          );\n\n          vec4 segFilter = vec4(\n            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 2)) == currentSeg ? 1 : 0,\n            0\n          );\n\n          "+c+"\n        }\n        setOutput(sumValue);\n      }\n    "},ri=function(t,e,n){var r,o;if(this.variableNames=["c","a","b"],this.outputShape=e,4<n)throw Error("Where for rank "+n+" is not yet supported");if(1===n)r=o="resRC";else{for(var i=["resRC.x","resRC.y","resRC.z","resRC.w"],a=[],s=[],u=0;u<e.length;u++)s.push(""+i[u]),u<t&&a.push(""+i[u]);r=a.join(),o=s.join()}var c=Dn(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    "},oi=function(){function t(t){this.variableNames=["source"],this.outputShape=t,this.rank=t.length;var e,n=Dn(this.rank),r="uniform int start["+this.rank+"];",o=function(t){if(1===t)return"sourceLoc";if(t<=6)return ii.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."+ii[e]+" = start["+e+"] + coords."+ii[e]+";"}).join("\n")+"\n      ",this.userCode="\n      "+r+"\n      void main() {\n        "+e+"\n        setOutput(getSource("+o+"));\n      }\n    "}return t.prototype.getCustomSetupFunc=function(n){var r=this;if(n.length!==this.rank)throw Error("The rank ("+this.rank+") of the program must match the length of start ("+n.length+")");return function(t,e){null==r.startLoc&&(r.startLoc=t.getUniformLocationNoThrow(e,"start"),null==r.startLoc)||t.gl.uniform1iv(r.startLoc,n)}},t}(),ii=["x","y","z","w","u","v"];var ai=function(){function t(t){this.variableNames=["source"],this.usesPackedTextures=!0,this.outputShape=t,this.rank=t.length;var e=Dn(this.rank),n=mn("coords",this.rank),r=mn("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(n){var r=this;if(n.length!==this.rank)throw Error("The rank ("+this.rank+") of the program must match the length of start ("+n.length+")");return function(t,e){null==r.startLoc&&(r.startLoc=t.getUniformLocationNoThrow(e,"start"),null==r.startLoc)||t.gl.uniform1iv(r.startLoc,n)}},t}(),si=function(t,e,n,r){this.variableNames=["x"];var o=n.filter(function(t,e){return-1===r.indexOf(e)});this.outputShape=o;var i=n.length,a=Dn(n.length),s=Dn(o.length),u="";if(1===i)u="coords * strides + begin";else{var c=0;u=n.map(function(t,e){return-1===r.indexOf(e)?(c++,1===o.length?"coords * strides["+e+"] + begin["+e+"]":"coords["+(c-1)+"] * strides["+e+"] + begin["+e+"]"):"begin["+e+"]"}).join(",")}this.userCode="\n      "+a+" begin = "+a+"("+t+");\n      "+a+" strides = "+a+"("+e+");\n\n      void main() {\n        "+s+" coords = getOutputCoords();\n        setOutput(getX("+u+"));\n      }\n    "},ui=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=ci(e,n),i=li(t,o,n);if(i in 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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 e=this;if(null!=this.freeTextures){for(var t in this.freeTextures)this.freeTextures[t].forEach(function(t){e.gpgpu.deleteMatrixTexture(t)});for(var t in this.usedTextures)this.usedTextures[t].forEach(function(t){e.gpgpu.deleteMatrixTexture(t)});this.freeTextures=null,this.usedTextures=null,this.numUsedTextures=0,this.numFreeTextures=0}},t}();function ci(t,e){if(t===wr.UPLOAD)return e?br.PACKED_2X2_FLOAT32:br.UNPACKED_FLOAT32;if(t===wr.RENDER||null==t)return e?Zt.get("WEBGL_RENDER_FLOAT32_ENABLED")?br.PACKED_2X2_FLOAT32:br.PACKED_2X2_FLOAT16:Zt.get("WEBGL_RENDER_FLOAT32_ENABLED")?br.UNPACKED_FLOAT32:br.UNPACKED_FLOAT16;if(t===wr.DOWNLOAD||t===wr.PIXELS)return br.PACKED_4X1_UNSIGNED_BYTE;throw new Error("Unknown logical texture type "+t)}function li(t,e,n){return t[0]+"_"+t[1]+"_"+e+"_"+n}var hi=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=Dn(this.rank),i=function(t){var e=t.length;if(5<e)throw Error("Tile for rank "+e+" is not yet supported");if(1===e)return"imod(resRC, "+t[0]+")";for(var n=["resRC.x","resRC.y","resRC.z","resRC.w","resRC.u"],r=[],o=0;o<t.length;o++)r.push("imod("+n[o]+", "+t[o]+")");return r.join()}(t);this.userCode="\n      void main() {\n        "+o+" resRC = getOutputCoords();\n        setOutput(getA("+i+"));\n      }\n    "};var pi=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=Dn(this.rank),i=function(t){var e=t.length;if(6<e)throw Error("Transpose for rank "+e+" is not yet supported");for(var n=["resRC.x","resRC.y","resRC.z","resRC.w","resRC.u","resRC.v"],r=new Array(e),o=0;o<t.length;o++)r[t[o]]=n[o];return r.join()}(e);this.userCode="\n    void main() {\n      "+o+" resRC = getOutputCoords();\n      setOutput(getA("+i+"));\n    }\n    "};var fi=function(t,e){this.variableNames=["A"],this.usesPackedTextures=!0;for(var n=new Array(t.length),r=0;r<n.length;r++)n[r]=t[e[r]];if(this.outputShape=n,this.rank=n.length,6<this.rank)throw Error("Packed transpose for rank "+this.rank+" is not yet supported.");var o=Dn(this.rank),i=vn("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 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o=zi(t,"int32"),i=zi([n.length,t.length],"int32");for(r=0;r<n.length;r++){var a=o.indexToLoc(n[r]),s=r*t.length;i.values.set(a,s)}return i.toTensor()}var da={};var va=function(){function t(t){if(this.gpgpu=t,this.pendingRead=new WeakMap,this.pendingDisposal=new WeakSet,this.dataRefCount=new WeakMap,this.lruDataGPU=[],this.numBytesInGPU=0,this.uploadWaitMs=0,this.downloadWaitMs=0,this.disposed=!1,Zt.get("WEBGL_VERSION")<1)throw new Error("WebGL is not supported on this device");if(null==t){var e=l(Zt.get("WEBGL_VERSION"));this.binaryCache=((n=Zt.get("WEBGL_VERSION"))in da||(da[n]={}),da[n]),this.gpgpu=new Mo(e),this.canvas=e.canvas,this.gpgpuCreatedLocally=!0}else this.binaryCache={},this.gpgpuCreatedLocally=!1,this.canvas=t.gl.canvas;var n;this.textureManager=new ui(this.gpgpu)}return t.prototype.register=function(t,e,n){if(this.texData.has(t))throw new Error("Data buffer is already registered");this.texData.set(t,{shape:e,dtype:n})},t.prototype.setDataMover=function(t){this.texData=new rn(t)},t.prototype.fromPixels=function(t,e){if(null==t)throw new Error("pixels passed to tf.browser.fromPixels() can not be null");var n=[t.height,t.width],r=[t.height,t.width,e];if(Zt.get("IS_BROWSER")){if(!(t instanceof HTMLVideoElement||t instanceof HTMLImageElement||t instanceof HTMLCanvasElement||t instanceof ImageData))throw new Error("pixels passed to tf.browser.fromPixels() must be either an HTMLVideoElement, HTMLImageElement, HTMLCanvasElement or ImageData, but was "+t.constructor.name);if(t instanceof HTMLVideoElement){if(null==this.fromPixels2DContext){if("complete"!==document.readyState)throw new Error("The DOM is not ready yet. Please call tf.browser.fromPixels() once the DOM is ready. One way to do that is to add an event listener for `DOMContentLoaded` on the document object");this.fromPixels2DContext=document.createElement("canvas").getContext("2d")}this.fromPixels2DContext.canvas.width=t.width,this.fromPixels2DContext.canvas.height=t.height,this.fromPixels2DContext.drawImage(t,0,0,t.width,t.height),t=this.fromPixels2DContext.canvas}}var o=this.makeTensorHandle(n,"int32");this.texData.get(o.dataId).usage=wr.PIXELS,this.gpgpu.uploadPixelDataToTexture(this.getTexture(o.dataId),t);var i=new yr(r),a=this.compileAndRun(i,[o]);return this.disposeData(o.dataId),a},t.prototype.makeTensorHandle=function(t,e){var n={};return this.register(n,t,e),{dataId:n,shape:t,dtype:e}},t.prototype.write=function(t,e){if(null==e)throw new Error("MathBackendWebGL.write(): values can not be null");if(Zt.get("DEBUG"))for(var n=0;n<e.length;n++){var r=e[n];if(!Dr(r))throw Error("The value "+r+" cannot be represented on this device.")}var o=this.texData.get(t),i=o.texture,a=o.texShape,s=o.usage,u=o.dtype,c=o.isPacked;if("complex64"===u)throw new Error("Cannot write to a complex64 dtype. Please use tf.complex(real, imag).");null!=i&&(this.releaseTexture(t,i,a,s,u,c),o.texture=null,o.texShape=null),o.usage=wr.UPLOAD,o.values=e},t.prototype.readSync=function(t){var e=this.texData.get(t),n=e.values,r=e.dtype,o=e.complexTensors,i=e.slice,a=e.shape;if(null!=i){var s=new mi(a,wi),u=this.compileAndRun(s,[{dataId:t,shape:a,dtype:r}]),c=this.readSync(u.dataId);return u.dispose(),c}if(null!=n)return this.convertAndCacheOnCPU(t);if("string"===r)return n;var l,h,p=null!=this.activeTimers;return p&&(l=performance.now()),h="complex64"===r?un(o.real.dataSync(),o.imag.dataSync()):this.getValuesFromTexture(t),p&&(this.downloadWaitMs+=performance.now()-l),this.convertAndCacheOnCPU(t,h)},t.prototype.read=function(S){return m(this,void 0,void 0,function(){var e,n,r,o,i,a,s,u,c,l,h,p,f,d,v,m,g,y,x,w,b,E,C,_;return R(this,function(t){switch(t.label){case 0:if(this.pendingRead.has(S))return r=this.pendingRead.get(S),[2,new Promise(function(t){return r.push(t)})];if(o=this.texData.get(S),i=o.texture,a=o.values,s=o.texShape,u=o.isPacked,c=o.shape,l=o.slice,h=o.dtype,null!=l)return p=new mi(c,wi),f=this.compileAndRun(p,[{dataId:S,shape:c,dtype:h}]),d=this.read(f.dataId),f.dispose(),[2,d];if(null!=a)return[2,this.convertAndCacheOnCPU(S)];if(this.pendingRead.set(S,[]),!Zt.get("WEBGL_DOWNLOAD_FLOAT_ENABLED")&&2===Zt.get("WEBGL_VERSION"))throw new Error("tensor.data() with WEBGL_DOWNLOAD_FLOAT_ENABLED=false and WEBGL_VERSION=2 not yet supported.");return v=s[1],m=s[0],u&&(e=kr(s[0],s[1]),v=e[0],m=e[1]),g=this.gpgpu.maybeCreateBufferFromTexture(i,m,v),[4,this.gpgpu.createAndWaitForFence()];case 1:return t.sent(),y=g instanceof WebGLTexture?this.getValuesFromTexture(S):(x=B(c),u?(w=oo(c),E=b=1,c.length&&(n=io(c),b=n[0],E=n[1]),this.gpgpu.downloadPackedMatrixFromBuffer(g,w,b,E,s[0],s[1]).subarray(0,x)):this.gpgpu.downloadFloat32MatrixFromBuffer(g,s[0],s[1]).subarray(0,x)),C=this.convertAndCacheOnCPU(S,y),_=this.pendingRead.get(S),this.pendingRead.delete(S),_.forEach(function(t){return t(C)}),this.pendingDisposal.has(S)&&(this.pendingDisposal.delete(S),this.disposeData(S)),[2,C]}})})},t.prototype.getValuesFromTexture=function(e){var t,n=this,r=this.texData.get(e),o=r.shape,i=r.dtype,a=r.texture,s=r.texShape,u=B(o);if(Zt.get("WEBGL_DOWNLOAD_FLOAT_ENABLED")){if(this.texData.get(e).isPacked){var c=oo(o),l=1,h=1;return o.length&&(l=(t=io(o))[0],h=t[1]),this.gpgpu.downloadMatrixFromPackedTexture(a,c,l,h,s[0],s[1]).subarray(0,u)}return this.gpgpu.downloadFloat32MatrixFromOutputTexture(a,s[0],s[1]).subarray(0,u)}var p=this.makeTensorHandle(o,"float32");p.size=B(o),this.texData.get(p.dataId).usage=wr.DOWNLOAD;var f=ue(function(){var t=new fr(o);return n.compileAndRun(t,[{shape:o,dtype:i,dataId:e}],p,null,!1)}),d=this.texData.get(f.dataId),v=this.gpgpu.downloadByteEncodedFloatMatrixFromOutputTexture(d.texture,d.texShape[0],d.texShape[1]).subarray(0,u);return this.disposeData(p.dataId),v},t.prototype.time=function(u){return m(this,void 0,void 0,function(){var e,n,r,o,i,a,s;return R(this,function(t){switch(t.label){case 0:return e=this.activeTimers,r=!(n=[]),null==this.programTimersStack?(this.programTimersStack=n,r=!0):this.activeTimers.push(n),this.activeTimers=n,u(),o=x(this.activeTimers.map(function(t){return t.query})).filter(function(t){return null!=t}),i=x(this.activeTimers.map(function(t){return t.name})).filter(function(t){return null!=t}),this.activeTimers=e,r&&(this.programTimersStack=null),[4,Promise.all(o)];case 1:return a=t.sent(),s={uploadWaitMs:this.uploadWaitMs,downloadWaitMs:this.downloadWaitMs,kernelMs:d(a),getExtraProfileInfo:function(){return a.map(function(t,e){return{name:i[e],ms:t}}).map(function(t){return t.name+": "+t.ms}).join(", ")},wallMs:null},this.uploadWaitMs=0,this.downloadWaitMs=0,[2,s]}})})},t.prototype.memory=function(){return{unreliable:!1,numBytesInGPU:this.numBytesInGPU}},t.prototype.startTimer=function(){return 0<Zt.get("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")?this.gpgpu.beginQuery():{startMs:performance.now(),endMs:null}},t.prototype.endTimer=function(t){return 0<Zt.get("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")?this.gpgpu.endQuery():t.endMs=performance.now(),t},t.prototype.getQueryTime=function(n){return m(this,void 0,void 0,function(){var e;return R(this,function(t){return 0<Zt.get("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")?[2,this.gpgpu.waitForQueryAndGetTime(n)]:[2,(e=n).endMs-e.startMs]})})},t.prototype.disposeData=function(t){if(!this.pendingDisposal.has(t))if(this.pendingRead.has(t))this.pendingDisposal.add(t);else if(this.texData.has(t)){var e=this.texData.get(t),n=e.texture,r=e.dtype,o=e.texShape,i=e.usage,a=e.complexTensors,s=e.isPacked,u=e.slice;if(null!=n){var c=u&&u.origDataId||t,l=this.dataRefCount.get(c);1<l?this.dataRefCount.set(c,l-1):(this.dataRefCount.delete(c),this.releaseTexture(t,n,o,i,r,s),this.texData.delete(t))}null!=a&&(a.real.dispose(),a.imag.dispose())}},t.prototype.getTexture=function(t){return this.uploadToGPU(t),this.texData.get(t).texture},t.prototype.getCPUBackend=function(){return Zt.get("WEBGL_CPU_FORWARD")?(null==this.cpuBackend&&(this.cpuBackend=Zt.findBackend("cpu")),this.cpuBackend):null},t.prototype.shouldExecuteOnCPU=function(t,e){var n=this;return void 0===e&&(e=128),null!=this.getCPUBackend()&&t.every(function(t){return null==n.texData.get(t.dataId).texture&&t.size<e})},t.prototype.getGPGPUContext=function(){return this.gpgpu},t.prototype.getCanvas=function(){return this.canvas},t.prototype.complex=function(t,e){var n=this.makeOutputArray(t.shape,"complex64");return this.texData.get(n.dataId).complexTensors={real:Zt.engine.keep(t.clone()),imag:Zt.engine.keep(e.clone())},n},t.prototype.real=function(t){return this.texData.get(t.dataId).complexTensors.real.clone()},t.prototype.imag=function(t){return this.texData.get(t.dataId).complexTensors.imag.clone()},t.prototype.slice=function(t,e,n){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.slice(t,e,n);var r=this.texData.get(t.dataId).isPacked,o=Oe(t.shape,e,n);if(!r&&o)return this.uploadToGPU(t.dataId),this.shallowSlice(t,e,n);var i=Zt.get("WEBGL_PACK_ARRAY_OPERATIONS")?new ai(n):new oi(n),a=i.getCustomSetupFunc(e);return this.compileAndRun(i,[t],null,a)},t.prototype.shallowSlice=function(t,e,n){var r=this.texData.get(t.dataId),o=dt.make(n,{},t.dtype,this),i=this.texData.get(o.dataId);Object.assign(i,r),i.shape=n,i.dtype=t.dtype;var a=Pe(e,t.strides);r.slice&&(a+=r.slice.flatOffset),i.slice={flatOffset:a,origDataId:r.slice&&r.slice.origDataId||t.dataId};var s=this.dataRefCount.get(i.slice.origDataId)||1;return this.dataRefCount.set(i.slice.origDataId,s+1),o},t.prototype.stridedSlice=function(t,e,n,r,o,i,a,s,u){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.stridedSlice(t,e,n,r,o,i,a,s,u);var c=Ae(t.shape,e,n,r,o,i,a,s,u),l=c[0],h=c[1],p=c[2],f=h.filter(function(t,e){return-1===p.indexOf(e)});if(f.some(function(t){return 0===t}))return Ge([],f);var d=new si(l,r,h,p);return this.compileAndRun(d,[t])},t.prototype.reverse=function(t,e){var n=Zt.get("WEBGL_PACK_ARRAY_OPERATIONS")?new ti(t.shape,e):new Zo(t.shape,e);return this.compileAndRun(n,[t])},t.prototype.concat=function(t,e){if(this.shouldExecuteOnCPU(t))return this.cpuBackend.concat(t,e);if(1===t.length)return t[0];if(t.length>Zt.get("WEBGL_MAX_TEXTURES_IN_SHADER")){var n=Math.floor(t.length/2),r=this.concat(t.slice(0,n),e),o=this.concat(t.slice(n),e);return this.concat([r,o],e)}if(Zt.get("WEBGL_PACK_ARRAY_OPERATIONS")&&1<t[0].rank){var i=new Jn(t.map(function(t){return t.shape}),e);return this.compileAndRun(i,t)}var a=Re(t.map(function(t){return t.shape}),e),s=t.map(function(t){return t.as2D(-1,B(t.shape.slice(e)))}),u=new Qn(s.map(function(t){return t.shape}));return this.compileAndRun(u,s).reshape(a)},t.prototype.neg=function(t){var e=new mi(t.shape,"return -x;");return this.compileAndRun(e,[t])},t.prototype.batchMatMul=function(t,e,n,r){var o=n?t.shape[2]:t.shape[1],i=r?e.shape[1]:e.shape[2],a=n?t.shape[1]:t.shape[2],s=t.shape[0];if((1===o||1===i)&&1e3<a){n&&(t=t.transpose([0,2,1])),r&&(e=e.transpose([0,2,1]));var u=1===i?t:t.as3D(s,a,1),c=1===i?2:1,l=1===i?e.as3D(s,1,a):e;return this.multiply(u,l).sum(c,!0)}var h=kt(t.dtype,e.dtype),p=new Wo(t.shape,[s,o,i],n,r),f=this.makePackedTensor(p.outputShape,h);return this.compileAndRun(p,[t,e],f)},t.prototype.fusedBatchMatMul=function(t,e,n,r,o,i){var a=n?t.shape[2]:t.shape[1],s=r?e.shape[1]:e.shape[2],u=t.shape[0],c=kt(t.dtype,e.dtype),l=new Wo(t.shape,[u,a,s],n,r,!!o,i?function(t,e){if(void 0===e&&(e=!1),"linear"===t)return"return x;";if("relu"===t)return e?bi:yi;throw new Error("Activation "+t+" has not been implemented for the WebGL backend.")}(i,!0):null),h=this.makePackedTensor(l.outputShape,c),p=[t,e];return o&&p.push(o),this.compileAndRun(l,p,h)},t.prototype.multiply=function(t,e){if("complex64"===t.dtype){var n=this.texData.get(t.dataId),r=this.texData.get(e.dataId),o=new Un(Wn,t.shape,e.shape),i=new Un(zn,t.shape,e.shape),a=[this.makeComplexComponentTensorHandle(t,n.complexTensors.real),this.makeComplexComponentTensorHandle(t,n.complexTensors.imag),this.makeComplexComponentTensorHandle(e,r.complexTensors.real),this.makeComplexComponentTensorHandle(e,r.complexTensors.imag)],s=this.compileAndRun(o,a),u=this.compileAndRun(i,a),c=this.complex(s,u);return s.dispose(),u.dispose(),c}if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.multiply(t,e);if(Zt.get("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,Hn,t.dtype);var l=new jn(Hn,t.shape,e.shape),h=this.makeOutputArray(l.outputShape,t.dtype);return this.compileAndRun(l,[t,e],h)},t.prototype.batchNormalization=function(t,e,n,r,o,i){var a=[t,e,n],s=null;null!=i&&(s=i.shape,a.push(i));var u=null;if(null!=o&&(u=o.shape,a.push(o)),Zt.get("WEBGL_PACK_BATCHNORMALIZATION")){var c=new Bn(t.shape,e.shape,n.shape,s,u,r);return this.compileAndRun(c,a)}var l=new Ln(t.shape,e.shape,n.shape,s,u,r);return this.compileAndRun(l,a)},t.prototype.localResponseNormalization4D=function(t,e,n,r,o){var i=new Fo(t.shape,e,n,r,o);return this.compileAndRun(i,[t])},t.prototype.LRNGrad=function(t,e,n,r,o,i,a){var s=new Lo(e.shape,r,o,i,a);return this.compileAndRun(s,[e,n,t])},t.prototype.tile=function(t,e){var n=new hi(t.shape,e);return this.compileAndRun(n,[t])},t.prototype.pad=function(t,e,n){var r=Zt.get("WEBGL_PACK_ARRAY_OPERATIONS")?new Ho(t.shape,e,n):new Vo(t.shape,e,n);return this.compileAndRun(r,[t])},t.prototype.transpose=function(t,e){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.transpose(t,e);var n=Zt.get("WEBGL_PACK_ARRAY_OPERATIONS")?new fi(t.shape,e):new pi(t.shape,e);return this.compileAndRun(n,[t])},t.prototype.gather=function(t,e,n){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.gather(t,e,n);var r=new xr(t.shape,e.size,n);return this.compileAndRun(r,[t,e])},t.prototype.batchToSpaceND=function(t,e,n){D(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=de(t.shape,e,r),i=ve(o.length,e.length),a=me(t.shape,e,r),s=ge(n,e.length),u=ye(a,n,e.length);return t.reshape(o).transpose(i).reshape(a).slice(s,u)},t.prototype.spaceToBatchND=function(t,e,n){D(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=de(a.shape,e,r,!1),u=ve(s.length,e.length,!1),c=me(a.shape,e,r,!1);return a.reshape(s).transpose(u).reshape(c)},t.prototype.reduce=function(t,e,n){var r=t.shape[0],o=t.shape[1],i=ke(o),a=new jo({windowSize:i,inSize:o,batchSize:r},e),s=a.outputShape,u=s[0],c=s[1],l=this.makeOutputArray([u,c],n);return this.compileAndRun(a,[t],l),1===l.shape[1]?l:this.reduce(l,e,n)},t.prototype.argReduce=function(t,e,n){void 0===n&&(n=null);var r=t.shape[0],o=t.shape[1];null!=n&&(r=n.shape[0],o=n.shape[1]);var i=ke(o),a=new dn({windowSize:i,inSize:o,batchSize:r},e,null==n),s=a.outputShape,u=s[0],c=s[1],l=this.makeOutputArray([u,c],"int32"),h=[t];return null!=n&&h.push(n),this.compileAndRun(a,h,l),1===l.shape[1]?l:this.argReduce(t,e,l)},t.prototype.argReducePacked=function(t,e,n){void 0===n&&(n=null);var r=null!=n?n.shape:t.shape,o=ke(r[r.length-1]),i=new Pn(r,o,e,null==n),a=this.makePackedTensor(i.outputShape,"int32"),s=null==n?[t]:[t,n];return this.compileAndRun(i,s,a),a.rank===t.rank?this.argReducePacked(t,e,a):a},t.prototype.sum=function(t,e){Ee("sum",e,t.rank);var n=we(t.shape,e),r=n[0],o=B(n[1]),i=t.as2D(-1,o),a=It(t.dtype);return this.reduce(i,"sum",a).reshape(r)},t.prototype.prod=function(t,e){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.prod(t,e);var n=we(t.shape,e),r=n[0],o=B(n[1]),i=t.as2D(-1,o),a=It(t.dtype);return this.reduce(i,"prod",a).reshape(r)},t.prototype.unsortedSegmentSum=function(t,e,n){var r=0,o=Ce([r],t.rank),i=t;null!=o&&(i=t.transpose(o),r=Se(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=B([i.shape[r]]),u=i.as2D(-1,s),c=It(t.dtype),l=this.segOpCompute(u,"unsortedSegmentSum",e,c,n).reshape(a);return null!=o&&(l=l.transpose(_e(o))),l},t.prototype.segOpCompute=function(t,e,n,r,o){var i=t.shape[0],a=t.shape[1],s=function(t,e){var n,r=!1;for(t<=30?(n=t,r=!0):n=$(t,Math.floor(Math.sqrt(t)));!r;)e<n||n===t?r=!0:n=$(t,n+1);return n}(a,o),u=new ni({windowSize:s,inSize:a,batchSize:i,numSegments:o},e),c=u.outputShape,l=c[0],h=c[1],p=this.makeOutputArray([l,h],r);return this.compileAndRun(u,[t,n],p),p.shape[1]===o?p:(n=tn(0,o).tile([a/s]),this.segOpCompute(p,e,n,r,o))},t.prototype.argMinMaxReduce=function(t,e,n){var r=[e];if(Ee("arg"+n.charAt(0).toUpperCase()+n.slice(1),r,t.rank),!Zt.get("WEBGL_PACK_REDUCE")||t.rank<=2){var o=we(t.shape,r),i=o[0],a=B(o[1]),s=t.as2D(-1,a);return this.argReduce(s,n).reshape(i)}return this.argReducePacked(t,n)},t.prototype.argMin=function(t,e){return this.argMinMaxReduce(t,e,"min")},t.prototype.argMax=function(t,e){return this.argMinMaxReduce(t,e,"max")},t.prototype.cumsum=function(t,e,n,r){if(e!==t.rank-1)throw new Error("WebGL cumsum shader expects an inner-most axis="+(t.rank-1)+" but got axis="+e);var o=new lr(t.shape,n,r);return this.compileAndRun(o,[t])},t.prototype.equal=function(t,e){if(Zt.get("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(equal(a, b));\n","bool");var n=new jn("return float(a == b);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},t.prototype.notEqual=function(t,e){if(Zt.get("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(notEqual(a, b));\n","bool");var n=new jn("return float(a != b);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},t.prototype.less=function(t,e){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.less(t,e);if(Zt.get("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(lessThan(a, b));\n","bool");var n=new jn("return float(a < b);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},t.prototype.lessEqual=function(t,e){if(Zt.get("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(lessThanEqual(a, b));\n","bool");var n=new jn("return float(a <= b);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},t.prototype.greater=function(t,e){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.greater(t,e);if(Zt.get("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(greaterThan(a, b));\n","bool");var n=new jn("return float(a > b);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},t.prototype.greaterEqual=function(t,e){if(Zt.get("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(greaterThanEqual(a, b));\n","bool");var n=new jn("return float(a >= b);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},t.prototype.logicalNot=function(t){var e=new mi(t.shape,"return float(!(x >= 1.0));");return this.compileAndRun(e,[t])},t.prototype.logicalAnd=function(t,e){if(Zt.get("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 jn("return float(a >= 1.0 && b >= 1.0);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},t.prototype.logicalOr=function(t,e){if(Zt.get("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 jn("return float(a >= 1.0 || b >= 1.0);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},t.prototype.select=function(t,e,n){var r=new ri(t.rank,e.shape,e.rank),o=this.makeOutputArray(r.outputShape,kt(e.dtype,n.dtype));return this.compileAndRun(r,[t,e,n],o)},t.prototype.where=function(t){fe("tf.where() in webgl locks the UI thread. Call tf.whereAsync() instead");var e=t.dataSync();return fa(t.shape,e)},t.prototype.topk=function(t,e,n){return fn(t.dataSync(),t.shape,t.dtype,e)},t.prototype.min=function(t,e){Ee("min",e,t.rank);var n=we(t.shape,e),r=n[0],o=B(n[1]),i=t.as2D(-1,o);return this.reduce(i,"min",i.dtype).reshape(r)},t.prototype.minimum=function(t,e){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.minimum(t,e);var n=Zt.get("WEBGL_PACK_BINARY_OPERATIONS")?new $n("\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 jn("\n  if (isnan(a)) return a;\n  if (isnan(b)) return b;\n\n  return min(a, b);\n",t.shape,e.shape);return this.compileAndRun(n,[t,e])},t.prototype.mod=function(t,e){var n=Zt.get("WEBGL_PACK_BINARY_OPERATIONS")?new $n("\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 jn("if (b == 0.0) return NAN;\n  return mod(a, b);",t.shape,e.shape);return this.compileAndRun(n,[t,e])},t.prototype.max=function(t,e){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.max(t,e);Ee("max",e,t.rank);var n=we(t.shape,e),r=n[0],o=B(n[1]),i=t.as2D(-1,o);return this.reduce(i,"max",i.dtype).reshape(r)},t.prototype.maximum=function(t,e){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.maximum(t,e);var n=Zt.get("WEBGL_PACK_BINARY_OPERATIONS")?new $n("\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 jn("\n  if (isnan(a)) return a;\n  if (isnan(b)) return b;\n\n  return max(a, b);\n",t.shape,e.shape);return this.compileAndRun(n,[t,e])},t.prototype.all=function(t,e){Ee("all",e,t.rank);var n=we(t.shape,e),r=n[0],o=B(n[1]),i=t.as2D(-1,o);return this.reduce(i,"all",i.dtype).reshape(r)},t.prototype.any=function(t,e){Ee("any",e,t.rank);var n=we(t.shape,e),r=n[0],o=B(n[1]),i=t.as2D(-1,o);return this.reduce(i,"any",i.dtype).reshape(r)},t.prototype.squaredDifference=function(t,e){var n=Zt.get("WEBGL_PACK_BINARY_OPERATIONS")?new $n(qn,t.shape,e.shape):new jn(qn,t.shape,e.shape);return this.compileAndRun(n,[t,e])},t.prototype.realDivide=function(t,e){var n=new jn("if (a == b) return 1.0;\n  return a / b;",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"float32");return this.compileAndRun(n,[t,e],r)},t.prototype.floorDiv=function(t,e){if(Zt.get("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  vec4 resultSign = sign(a) * sign(b);\n  ivec4 ia = round(a);\n  ivec4 ib = round(b);\n  ivec4 result = ia / ib;\n  ivec4 amodb = ia - ib * result;\n\n  // Vectorize INT_DIV\n  // if (resultSign < 0.0 && amodb != 0) result -= 1;\n  // return float(result);\n  return vec4(result -\n     ivec4(lessThan(resultSign, vec4(0.0))) * ivec4(notEqual(amodb, ivec4(0))));\n","int32");var n=new jn("\n  float resultSign = sign(a) * sign(b);\n  int ia = round(a);\n  int ib = round(b);\n  int result = ia / ib;\n  int amodb = ia - ib * result;\n\n  if (resultSign < 0.0 && amodb != 0) {\n    result -= 1;\n  }\n  return float(result);\n",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"int32");return this.compileAndRun(n,[t,e],r)},t.prototype.add=function(t,e){if("complex64"===t.dtype&&"complex64"===e.dtype)return this.complexSeparableBinaryOp(t,e,Gn);if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.add(t,e);var n=kt(t.dtype,e.dtype);if(Zt.get("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,Gn,n);var r=new jn(Gn,t.shape,e.shape),o=this.makeOutputArray(r.outputShape,n);return this.compileAndRun(r,[t,e],o)},t.prototype.packedBinaryOp=function(t,e,n,r){var o=new $n(n,t.shape,e.shape),i=this.makePackedTensor(o.outputShape,r);return this.compileAndRun(o,[t,e],i)},t.prototype.complexSeparableBinaryOp=function(s,u,c){var l=this,t=this.texData.get(s.dataId),e=this.texData.get(u.dataId),n=[[t.complexTensors.real,e.complexTensors.real],[t.complexTensors.imag,e.complexTensors.imag]].map(function(t){var e=t[0],n=t[1],r=l.makeComplexComponentTensorHandle(s,e),o=l.makeComplexComponentTensorHandle(u,n),i=new jn(c,s.shape,u.shape),a=l.makeOutputArray(i.outputShape,kt(e.dtype,n.dtype));return l.compileAndRun(i,[r,o],a)}),r=n[0],o=n[1],i=this.complex(r,o);return r.dispose(),o.dispose(),i},t.prototype.makeComplexComponentTensorHandle=function(t,e){return{dataId:e.dataId,dtype:e.dtype,shape:t.shape}},t.prototype.addN=function(t){for(var e=t[0],n=1;n<t.length;n++)e=this.add(e,t[n]);return e},t.prototype.subtract=function(t,e){if("complex64"===t.dtype&&"complex64"===e.dtype)return this.complexSeparableBinaryOp(t,e,Vn);if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.subtract(t,e);var n=kt(t.dtype,e.dtype);if(Zt.get("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,Vn,t.dtype);var r=new jn(Vn,t.shape,e.shape),o=this.makeOutputArray(r.outputShape,n);return this.compileAndRun(r,[t,e],o)},t.prototype.pow=function(t,e){var n=Zt.get("WEBGL_PACK_BINARY_OPERATIONS"),r=n?new $n("\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  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 jn("\nif(a < 0.0 && floor(b) < b){\n  return NAN;\n}\nreturn (round(mod(b, 2.0)) != 1) ?\n    pow(abs(a), b) : sign(a) * pow(abs(a), b);\n",t.shape,e.shape),o=kt(t.dtype,e.dtype),i=n?this.makePackedTensor(r.outputShape,o):this.makeOutputArray(r.outputShape,o);return this.compileAndRun(r,[t,e],i)},t.prototype.ceil=function(t){var e=new mi(t.shape,"return ceil(x);");return this.compileAndRun(e,[t])},t.prototype.floor=function(t){var e=new mi(t.shape,"return floor(x);");return this.compileAndRun(e,[t])},t.prototype.sign=function(t){var e=new mi(t.shape,"\n  if (isnan(x)) { return 0.0; }\n  return sign(x);\n");return this.compileAndRun(e,[t])},t.prototype.isNaN=function(t){var e=new mi(t.shape,"return float(isnan(x));"),n=this.makeOutputArray(e.outputShape,"bool");return this.compileAndRun(e,[t],n)},t.prototype.isInf=function(t){var e=new mi(t.shape,"return float(isinf(x));"),n=this.makeOutputArray(e.outputShape,"bool");return this.compileAndRun(e,[t],n)},t.prototype.isFinite=function(t){var e=new mi(t.shape,"return float(!isnan(x) && !isinf(x));"),n=this.makeOutputArray(e.outputShape,"bool");return this.compileAndRun(e,[t],n)},t.prototype.round=function(t){var e=new mi(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])},t.prototype.exp=function(t){var e;return e=Zt.get("WEBGL_PACK")?new Ei(t.shape,xi):new mi(t.shape,xi),this.compileAndRun(e,[t])},t.prototype.expm1=function(t){var e=new mi(t.shape,"return exp(x) - 1.0;");return this.compileAndRun(e,[t])},t.prototype.log=function(t){var e;return e=Zt.get("WEBGL_PACK")?new Ei(t.shape,"\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"):new mi(t.shape,"if (x < 0.0) return NAN;\n  return log(x);"),this.compileAndRun(e,[t])},t.prototype.log1p=function(t){var e=new mi(t.shape,"return log(1.0 + x);");return this.compileAndRun(e,[t])},t.prototype.sqrt=function(t){var e=new mi(t.shape,"return sqrt(x);");return this.compileAndRun(e,[t])},t.prototype.rsqrt=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.rsqrt(t);var e=new mi(t.shape,"return inversesqrt(x);");return this.compileAndRun(e,[t])},t.prototype.square=function(t){var e=new mi(t.shape,"return x * x;");return this.compileAndRun(e,[t])},t.prototype.reciprocal=function(t){var e=new mi(t.shape,"return 1.0 / x;");return this.compileAndRun(e,[t])},t.prototype.relu=function(t){var e;return e=Zt.get("WEBGL_PACK")?new Ei(t.shape,bi):new mi(t.shape,yi),this.compileAndRun(e,[t])},t.prototype.prelu=function(t,e){var n=Zt.get("WEBGL_PACK_BINARY_OPERATIONS")?new $n("\n  vec4 aLessThanZero = vec4(lessThan(a, vec4(0.)));\n  return (aLessThanZero * (b * a)) + ((vec4(1.0) - aLessThanZero) * a);\n",t.shape,e.shape):new jn("return (a < 0.) ? b * a : a;",t.shape,e.shape);return this.compileAndRun(n,[t,e])},t.prototype.elu=function(t){var e=new mi(t.shape,"return (x >= 0.0) ? x : (exp(x) - 1.0);");return this.compileAndRun(e,[t])},t.prototype.eluDer=function(t,e){var n=Zt.get("WEBGL_PACK_BINARY_OPERATIONS")?new $n("\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 jn("return (b >= 1.0) ? a : a * (b + 1.0);",t.shape,e.shape);return this.compileAndRun(n,[t,e])},t.prototype.selu=function(t){var e=new mi(t.shape,"\n  // Stable and Attracting Fixed Point (0, 1) for Normalized Weights.\n  // see: https://arxiv.org/abs/1706.02515\n  float scaleAlpha = 1.7580993408473768;\n  float scale = 1.0507009873554805;\n  return (x >= 0.0) ? scale * x : scaleAlpha * (exp(x) - 1.0);\n");return this.compileAndRun(e,[t])},t.prototype.int=function(t){var e=new mi(t.shape,"return float(int(x));"),n=this.makeOutputArray(e.outputShape,"int32");return this.compileAndRun(e,[t],n)},t.prototype.clip=function(t,e,n){var r,o=(r=Zt.get("WEBGL_PACK_CLIP")?new Xn(t.shape):new Kn(t.shape)).getCustomSetupFunc(e,n);return this.compileAndRun(r,[t],null,o)},t.prototype.abs=function(t){var e=new mi(t.shape,"return abs(x);");return this.compileAndRun(e,[t])},t.prototype.complexAbs=function(t){var e=this.texData.get(t.dataId),n=new Yn(t.shape),r=[this.makeComplexComponentTensorHandle(t,e.complexTensors.real),this.makeComplexComponentTensorHandle(t,e.complexTensors.imag)];return this.compileAndRun(n,r)},t.prototype.sigmoid=function(t){var e=new mi(t.shape,"return 1.0 / (1.0 + exp(-1.0 * x));");return this.compileAndRun(e,[t])},t.prototype.softplus=function(t){var e=new mi(t.shape,"\n  float epsilon = 1.1920928955078125e-7;\n  float threshold = log(epsilon) + 2.0;\n\n  bool too_large = x > -threshold;\n  bool too_small = x < threshold;\n\n  float result;\n  float exp_x = exp(x);\n\n  if (too_large){\n    result = x;\n  }\n  else if (too_small){\n    result = exp_x;\n  }\n  else{\n    result = log(exp_x + 1.0);\n  }\n  return result;\n");return this.compileAndRun(e,[t])},t.prototype.sin=function(t){var e=new mi(t.shape,"if (isnan(x)) return x;\n  return sin(x);\n");return this.compileAndRun(e,[t])},t.prototype.cos=function(t){var e=new mi(t.shape,"if (isnan(x)) return x;\n  return cos(x);\n");return this.compileAndRun(e,[t])},t.prototype.tan=function(t){var e=new mi(t.shape,"return tan(x);");return this.compileAndRun(e,[t])},t.prototype.asin=function(t){var e=new mi(t.shape,"return asin(x);");return this.compileAndRun(e,[t])},t.prototype.acos=function(t){var e=new mi(t.shape,"return acos(x);");return this.compileAndRun(e,[t])},t.prototype.atan=function(t){var e=new mi(t.shape,"if (isnan(x)) return x;\n  return atan(x);\n");return this.compileAndRun(e,[t])},t.prototype.atan2=function(t,e){var n=Zt.get("WEBGL_PACK_BINARY_OPERATIONS")?new $n("\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 jn("\n  if (isnan(a)) return a;\n  if (isnan(b)) return b;\n\n  return atan(a, b);\n",t.shape,e.shape);return this.compileAndRun(n,[t,e])},t.prototype.sinh=function(t){var e=new mi(t.shape,"\n  float e2x = exp(x);\n  return (e2x - 1.0 / e2x) / 2.0;\n");return this.compileAndRun(e,[t])},t.prototype.cosh=function(t){var e=new mi(t.shape,"\n  float e2x = exp(-x);\n  return (e2x + 1.0 / e2x) / 2.0;\n");return this.compileAndRun(e,[t])},t.prototype.tanh=function(t){var e=new mi(t.shape,"\n  float e2x = exp(-2.0 * abs(x));\n  return sign(x) * (1.0 - e2x) / (1.0 + e2x);\n");return this.compileAndRun(e,[t])},t.prototype.asinh=function(t){var e=new mi(t.shape,"return log(x + sqrt(x * x + 1.0));");return this.compileAndRun(e,[t])},t.prototype.acosh=function(t){var e=new mi(t.shape,"if (isnan(x)) return x;\n  if (x < 1.0) return NAN;\n  return log(x + sqrt(x * x - 1.0));");return this.compileAndRun(e,[t])},t.prototype.atanh=function(t){var e=new mi(t.shape,"if (isnan(x)) return x;\n  if ((x < -1.0) || (x > 1.0)) return NAN;\n  return (log(1.0 + x) - log(1.0 - x)) / 2.0;");return this.compileAndRun(e,[t])},t.prototype.erf=function(t){var e=new mi(t.shape,'\n  // Error function is calculated approximately with elementary function.\n  // See "Handbook of Mathematical Functions with Formulas,\n  // Graphs, and Mathematical Tables", Abramowitz and Stegun.\n  float p = 0.3275911;\n  float a1 = 0.254829592;\n  float a2 = -0.284496736;\n  float a3 = 1.421413741;\n  float a4 = -1.453152027;\n  float a5 = 1.061405429;\n\n  float t = 1.0 / (1.0 + p * x);\n  return 1.0 - (((((a5*t + a4)*t) + a3)*t + a2)*t + a1)*t*exp(-x*x);\n');return this.compileAndRun(e,[t])},t.prototype.step=function(t,e){var n,r=new mi(t.shape,(void 0===(n=e)&&(n=0),gi+"\n    return x > 0.0 ? 1.0 : float("+n+");\n  "));return this.compileAndRun(r,[t])},t.prototype.conv2dByMatMul=function(t,e,n){var r=t.shape,o=this.texData.get(t.dataId),i=n.inChannels,a=r[0]*r[1]*r[2],s=n.outChannels,u=(1===a||1===s)&&1e3<i,c=r[2]%2!=0&&!!o.isPacked;if(u||!Zt.get("WEBGL_LAZILY_UNPACK")||!Zt.get("WEBGL_PACK_BINARY_OPERATIONS")||!c){var l=this.reshape(t,[1,r[0]*r[1]*r[2],n.inChannels]),h=this.reshape(e,[1,n.inChannels,n.outChannels]);return this.reshape(this.batchMatMul(l,h,!1,!1),n.outShape)}var p=dt.make([1,r[0]*r[1]*(r[2]+1),n.inChannels],{dataId:t.dataId},t.dtype,this),f=o.shape;o.shape=o.shape.slice(),o.shape[o.shape.length-2]++,D(uo(o.shape,p.shape),function(){return"packed reshape "+o.shape+" to "+p.shape+" isn't free"});var d=this.reshape(e,[1,n.inChannels,n.outChannels]),v=this.batchMatMul(p,d,!1,!1),m=this.texData.get(v.dataId);return D(m.isPacked,function(){return"batchMatMul result is expected to be packed"}),o.shape=f,m.shape=n.outShape,dt.make(n.outShape,{dataId:v.dataId},v.dtype,this)},t.prototype.conv2dWithIm2Row=function(t,e,n){var r=n.filterWidth,o=n.filterHeight,i=n.inChannels,a=n.outWidth,s=n.outHeight,u=r*o*i,c=s*a,l=[u,c],h=t.squeeze([0]),p=e.reshape([1,u,-1]),f=new Po(l,h.shape,n),d=this.compileAndRun(f,[h]).reshape([1,l[0],l[1]]),v=new Wo(d.shape,[1,c,n.outChannels],!0,!1);return this.compileAndRun(v,[d,p]).reshape([1,s,a,n.outChannels])},t.prototype.conv2d=function(t,e,n){if(1===n.filterHeight&&1===n.filterWidth&&1===n.dilationHeight&&1===n.dilationWidth&&1===n.strideHeight&&1===n.strideWidth&&("SAME"===n.padInfo.type||"VALID"===n.padInfo.type))return this.conv2dByMatMul(t,e,n);if(Zt.get("WEBGL_CONV_IM2COL")&&1===t.shape[0])return this.conv2dWithIm2Row(t,e,n);var r=new ir(n);return this.compileAndRun(r,[t,e])},t.prototype.conv2dDerInput=function(t,e,n){var r=new tr(n);return this.compileAndRun(r,[t,e])},t.prototype.conv2dDerFilter=function(t,e,n){var r=new Zn(n);return this.compileAndRun(r,[t,e])},t.prototype.depthwiseConv2D=function(t,e,n){var r;return Zt.get("WEBGL_PACK_DEPTHWISECONV")&&n.strideWidth<=2&&n.outChannels/n.inChannels==1?(r=new ur(n),this.compileAndRun(r,[t,e],this.makePackedTensor(n.outShape,t.dtype))):(r=new sr(n),this.compileAndRun(r,[t,e]))},t.prototype.depthwiseConv2DDerInput=function(t,e,n){var r=new or(n);return this.compileAndRun(r,[t,e])},t.prototype.depthwiseConv2DDerFilter=function(t,e,n){var r=new rr(n);return this.compileAndRun(r,[t,e])},t.prototype.conv3d=function(t,e,n){var r=new ar(n);return this.compileAndRun(r,[t,e])},t.prototype.conv3dDerInput=function(t,e,n){var r=new nr(n);return this.compileAndRun(r,[t,e])},t.prototype.conv3dDerFilter=function(t,e,n){var r=new er(n);return this.compileAndRun(r,[t,e])},t.prototype.maxPool=function(t,e){var n=new qo(e,"max",!1),r=this.makeOutputArray(n.outputShape,t.dtype);return this.compileAndRun(n,[t],r)},t.prototype.avgPool=function(t,e){var n=new qo(e,"avg",!1),r=this.makeOutputArray(n.outputShape,"float32");return this.compileAndRun(n,[t],r)},t.prototype.maxPoolBackprop=function(t,e,n,r){var o=new qo(r,"max",!0),i=this.compileAndRun(o,[e]),a=new Bo(r),s=this.makeOutputArray(a.outputShape,e.dtype),u=this.compileAndRun(a,[t,i],s);return i.dispose(),u},t.prototype.avgPoolBackprop=function(t,e,n){var r=new Fn(n),o=this.makeOutputArray(r.outputShape,e.dtype);return this.compileAndRun(r,[t],o)},t.prototype.cast=function(t,e){return an(t,e,this)},t.prototype.unstack=function(t,e){for(var n=t.shape[e],r=new Array(t.rank-1),o=0,i=0;i<t.rank;i++)i!==e&&(r[o++]=t.shape[i]);var a=new Array(t.rank).fill(0),s=t.shape.slice();s[e]=1;var u=new Array(n);for(i=0;i<u.length;i++)u[a[e]=i]=this.slice(t,a,s).reshape(r);return u},t.prototype.reshape=function(t,e){var n=this.texData.get(t.dataId);return!n.isPacked||uo(t.shape,e)||null!==n.texture&&uo(n.shape,e)?sn(t,e):this.packedReshape(t,e)},t.prototype.resizeBilinear=function(t,e,n,r){var o=Zt.get("WEBGL_PACK_IMAGE_OPERATIONS")?new Yo(t.shape,e,n,r):new Xo(t.shape,e,n,r);return this.compileAndRun(o,[t])},t.prototype.resizeBilinearBackprop=function(t,e,n){var r=new Ko(t,e,n);return this.compileAndRun(r,[t])},t.prototype.resizeNearestNeighbor=function(t,e,n,r){var o=new Jo(t.shape,e,n,r);return this.compileAndRun(o,[t])},t.prototype.resizeNearestNeighborBackprop=function(t,e,n){var r=new Qo(t,e,n);return this.compileAndRun(r,[t])},t.prototype.multinomial=function(t,e,n,r){var o=e?t:Le(t),i=o.shape[0],a=o.shape[1],s=new zo(i,a,n),u=this.makeOutputArray(s.outputShape,"int32"),c=s.getCustomSetupFunc(r);return this.compileAndRun(s,[o],u,c)},t.prototype.oneHot=function(t,e,n,r){var o=new Uo(t.size,e,n,r);return this.compileAndRun(o,[t])},t.prototype.nonMaxSuppression=function(t,e,n,r,o){return fe("tf.nonMaxSuppression() in webgl locks the UI thread. Call tf.nonMaxSuppressionAsync() instead"),ln(t.dataSync(),e.dataSync(),n,r,o)},t.prototype.cropAndResize=function(t,e,n,r,o,i){var a=new cr(t.shape,e.shape,r,o,i);return this.compileAndRun(a,[t,e,n])},t.prototype.depthToSpace=function(t,e,n){D(1<e,function(){return"blockSize should be > 1 for depthToSpace, but was: "+e});var r=t.shape[0],o="NHWC"===n?t.shape[1]:t.shape[2],i="NHWC"===n?t.shape[2]:t.shape[3],a="NHWC"===n?t.shape[3]:t.shape[1],s=o*e,u=i*e,c=a/(e*e),l=new pr("NHWC"===n?[r,s,u,c]:[r,c,s,u],e,n);return this.compileAndRun(l,[t])},t.prototype.split=function(t,e,n){return pn(t,e,n)},t.prototype.scatterND=function(t,e,n){var r=Te(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 sn(Ge([]),n);var p=Ve(0),f=new ei(i,o,l.rank,h.rank,s,c);return this.compileAndRun(f,[h,l,p]).reshape(n)},t.prototype.sparseToDense=function(t,e,n,r){var o=Te(0,t,n),i=o.sliceRank,a=o.numUpdates,s=o.strides,u=o.outputSize,c=new ei(a,i,t.rank,e.rank,s,[u,1],!1);return this.compileAndRun(c,[e,t,r]).reshape(n)},t.prototype.fft=function(t){return this.fftImpl(t,!1)},t.prototype.ifft=function(t){return this.fftImpl(t,!0)},t.prototype.fftImpl=function(t,e){var n=this.texData.get(t.dataId),r=new mr(dr,t.shape,e),o=new mr(vr,t.shape,e),i=[this.makeComplexComponentTensorHandle(t,n.complexTensors.real),this.makeComplexComponentTensorHandle(t,n.complexTensors.imag)],a=this.compileAndRun(r,i),s=this.compileAndRun(o,i),u=this.complex(a,s).as2D(t.shape[0],t.shape[1]);return a.dispose(),s.dispose(),u},t.prototype.gatherND=function(t,e){var n=e.shape,r=n[n.length-1],o=Ne(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 _r(r,u,[a,s]);return this.compileAndRun(h,[l,c]).reshape(i)},t.prototype.fill=function(t,e,n){if("string"===(n=n||q(e))){var r=M(n,B(t));return r.fill(e),dt.make(t,{values:r},n)}var o=new gr(t,e),i=o.getCustomSetupFunc(e),a=this.makeOutputArray(t,n);return this.compileAndRun(o,[],a,i)},t.prototype.onesLike=function(t){if("string"===t.dtype)throw new Error("onesLike is not supported under string dtype");return this.fill(t.shape,1,t.dtype)},t.prototype.zerosLike=function(t){return this.fill(t.shape,"string"===t.dtype?"":0,t.dtype)},t.prototype.makeOutputArray=function(t,e){return dt.make(t,{},e,this)},t.prototype.makePackedTensor=function(t,e){var n=dt.make(t,{},e,this);return this.texData.get(n.dataId).isPacked=!0,n},t.prototype.unpackTensor=function(t){var e=new Ci(t.shape);return this.compileAndRun(e,[t],dt.make(e.outputShape,{},t.dtype,this))},t.prototype.packTensor=function(t){var e=new Go(t.shape);return this.compileAndRun(e,[t],this.makePackedTensor(t.shape,t.dtype))},t.prototype.packedReshape=function(t,e){var n=t.reshape([oo(t.shape)].concat(io(t.shape))),r=[oo(e)].concat(io(e)),o=new $o(r,n.shape);return this.compileAndRun(o,[n]).reshape(e)},t.prototype.compileAndRun=function(o,t,e,n,r){var i=this;if(void 0===r&&(r=!0),null==e&&(e=o.usesPackedTextures?this.makePackedTensor(o.outputShape,t[0].dtype):this.makeOutputArray(o.outputShape,t[0].dtype)),0===e.size)return this.texData.get(e.dataId).values=A(e.dtype,0),e;var a=t.map(function(t){if("complex64"===t.dtype)throw new Error("GPGPUProgram does not support complex64 input. 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t.constructor.name+"_"+r+"_"+o}(o,a,u),l=this.getAndSaveBinary(c,function(){return function(t,r,e,n){var o=r.userCode,i=e.map(function(t,e){var n={logicalShape:t.shape,texShape:t.isUniform?null:t.texData.texShape,isUniform:t.isUniform,isPacked:!t.isUniform&&t.texData.isPacked,flatOffset:null};return null!=t.texData&&null!=t.texData.slice&&0<t.texData.slice.flatOffset&&(n.flatOffset=t.texData.slice.flatOffset),{name:r.variableNames[e],shapeInfo:n}}),a=i.map(function(t){return t.shapeInfo}),s={logicalShape:n.shape,texShape:n.texData.texShape,isUniform:!1,isPacked:n.texData.isPacked,flatOffset:null},u=Cn(i,s,o,r.usesPackedTextures),c=t.createProgram(u),l=null,h=null;1===Zt.get("WEBGL_VERSION")&&(l=t.getUniformLocation(c,"INFINITY",!1),h=t.getUniformLocation(c,"NAN",!1));for(var p={},f=0;f<r.variableNames.length;f++){var 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u=Ve(r),c=Ve(1),l=Ve(i.shape[1]);i=i.mul(c.sub(u)).add(u.div(l))}var h=function(t,e,i){if(void 0===i&&(i=-1),-1===i&&(i=e.rank-1),i!==e.rank-1)throw Error("Softmax cross entropy along a non-last dimension is not yet supported. 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v=c[h+d];p<v&&(p=v,f=d)}u[l]=f}return a},t.prototype.cumsum=function(t,e,n,r){if(this.assertNotComplex(t,"cumsum"),e!==t.rank-1)throw new Error("backend.cumsum in CPU expects an inner-most axis="+(t.rank-1)+" but got axis="+e);for(var o=kt(t.dtype,"int32"),i=Qe(t.shape,o),a=i.dataSync(),s=t.dataSync(),u=t.shape[t.rank-1],c=r?function(t,e){return t+u-e-1}:function(t,e){return t+e},l=0;l<s.length;l+=u)for(var h=0;h<u;h++){var p=c(l,h);if(0===h)a[p]=n?0:s[p];else{var f=c(l,h-1);a[p]=n?s[f]+a[f]:s[p]+a[f]}}return i},t.prototype.equal=function(t,e){return this.assertNotComplex([t,e],"equal"),this.broadcastedBinaryOp(t,e,"bool",function(t,e){return t===e?1:0})},t.prototype.notEqual=function(t,e){return this.assertNotComplex([t,e],"notEqual"),this.broadcastedBinaryOp(t,e,"bool",function(t,e){return t!==e?1:0})},t.prototype.less=function(t,e){return this.assertNotComplex([t,e],"less"),this.broadcastedBinaryOp(t,e,"bool",function(t,e){return t<e?1:0})},t.prototype.lessEqual=function(t,e){return this.assertNotComplex([t,e],"lessEqual"),this.broadcastedBinaryOp(t,e,"bool",function(t,e){return t<=e?1:0})},t.prototype.greater=function(t,e){return this.assertNotComplex([t,e],"greater"),this.broadcastedBinaryOp(t,e,"bool",function(t,e){return e<t?1:0})},t.prototype.greaterEqual=function(t,e){return this.assertNotComplex([t,e],"greaterEqual"),this.broadcastedBinaryOp(t,e,"bool",function(t,e){return e<=t?1:0})},t.prototype.logicalNot=function(t){this.assertNotComplex(t,"logicalNot");for(var e=t.dataSync(),n=new Uint8Array(e.length),r=0;r<e.length;++r)n[r]=e[r]?0:1;return dt.make(t.shape,{values:n},"bool")},t.prototype.logicalAnd=function(t,e){return this.assertNotComplex([t,e],"logicalAnd"),this.broadcastedBinaryOp(t,e,"bool",function(t,e){return t&&e})},t.prototype.logicalOr=function(t,e){return this.assertNotComplex([t,e],"logicalOr"),this.broadcastedBinaryOp(t,e,"bool",function(t,e){return t||e})},t.prototype.select=function(t,e,n){this.assertNotComplex([t,e,n],"select");for(var r=t.dataSync(),o=e.dataSync(),i=n.dataSync(),a=Qe(e.shape,kt(e.dtype,n.dtype)),s=a.dataSync(),u=0,c=0===t.rank||1<t.rank||1===e.rank?1:e.shape[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},t.prototype.where=function(t){this.assertNotComplex([t],"where");var e=t.dataSync();return fa(t.shape,e)},t.prototype.topk=function(t,e,n){return this.assertNotComplex(t,"topk"),fn(t.dataSync(),t.shape,t.dtype,e)},t.prototype.min=function(t,e){this.assertNotComplex(t,"min"),Ee("min",e,t.rank);for(var n=we(t.shape,e),r=n[0],o=n[1],i=Qe(r,t.dtype),a=B(o),s=i.dataSync(),u=t.dataSync(),c=0;c<s.length;++c){for(var l=c*a,h=u[l],p=0;p<a;++p){var f=u[l+p];f<h&&(h=f)}s[c]=h}return i},t.prototype.minimum=function(t,e){return this.assertNotComplex([t,e],"minimum"),this.broadcastedBinaryOp(t,e,t.dtype,function(t,e){return Math.min(t,e)})},t.prototype.mod=function(t,e){return this.assertNotComplex([t,e],"mod"),this.broadcastedBinaryOp(t,e,t.dtype,function(t,e){var n=t%e;return t<0&&e<0||0<=t&&0<=e?n:(n+e)%e})},t.prototype.max=function(t,e){this.assertNotComplex(t,"max"),Ee("max",e,t.rank);for(var n=we(t.shape,e),r=n[0],o=n[1],i=Qe(r,t.dtype),a=B(o),s=i.dataSync(),u=t.dataSync(),c=0;c<s.length;++c){for(var l=c*a,h=u[l],p=0;p<a;++p){var f=u[l+p];h<f&&(h=f)}s[c]=h}return i},t.prototype.maximum=function(t,e){return this.assertNotComplex([t,e],"maximum"),this.broadcastedBinaryOp(t,e,t.dtype,function(t,e){return Math.max(t,e)})},t.prototype.all=function(t,e){this.assertNotComplex(t,"all"),Ee("all",e,t.rank);for(var n=we(t.shape,e),r=n[0],o=n[1],i=Qe(r,t.dtype),a=B(o),s=i.dataSync(),u=t.dataSync(),c=0;c<s.length;++c){for(var l=c*a,h=u[l],p=0;p<a;++p){var f=u[l+p];h=h&&f}s[c]=h}return i},t.prototype.any=function(t,e){this.assertNotComplex(t,"any"),Ee("any",e,t.rank);for(var n=we(t.shape,e),r=n[0],o=n[1],i=Qe(r,t.dtype),a=B(o),s=i.dataSync(),u=t.dataSync(),c=0;c<s.length;++c){for(var l=c*a,h=u[l],p=0;p<a;++p){var f=u[l+p];h=h||f}s[c]=h}return i},t.prototype.squaredDifference=function(t,e){return this.assertNotComplex([t,e],"squaredDifference"),this.broadcastedBinaryOp(t,e,t.dtype,function(t,e){var n=t-e;return n*n})},t.prototype.ceil=function(t){this.assertNotComplex(t,"ceil");for(var e=t.dataSync(),n=new Float32Array(e.length),r=0;r<e.length;++r)n[r]=Math.ceil(e[r]);return dt.make(t.shape,{values:n})},t.prototype.floor=function(t){this.assertNotComplex(t,"floor");for(var e=t.dataSync(),n=new Float32Array(e.length),r=0;r<e.length;++r)n[r]=Math.floor(e[r]);return dt.make(t.shape,{values:n})},t.prototype.sign=function(t){this.assertNotComplex(t,"x");for(var e=t.dataSync(),n=new Float32Array(e.length),r=0;r<e.length;++r)e[r]<0?n[r]=-1:0<e[r]?n[r]=1:n[r]=0;return dt.make(t.shape,{values:n})},t.prototype.isNaN=function(t){this.assertNotComplex(t,"x");for(var e=t.dataSync(),n=new Uint8Array(e.length),r=0;r<e.length;++r)Number.isNaN(e[r])&&(n[r]=1);return dt.make(t.shape,{values:n},"bool")},t.prototype.isInf=function(t){this.assertNotComplex(t,"x");for(var e=t.dataSync(),n=new Uint8Array(e.length),r=0;r<e.length;++r)Math.abs(e[r])===1/0&&(n[r]=1);return dt.make(t.shape,{values:n},"bool")},t.prototype.isFinite=function(t){this.assertNotComplex(t,"x");for(var e=t.dataSync(),n=new Uint8Array(e.length),r=0;r<e.length;++r)Number.isFinite(e[r])&&(n[r]=1);return dt.make(t.shape,{values:n},"bool")},t.prototype.round=function(t){this.assertNotComplex(t,"round");for(var e=t.dataSync(),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=Math.floor(e[r]);e[r]-o<.5?n[r]=Math.floor(e[r]):.5<e[r]-o?n[r]=Math.ceil(e[r]):n[r]=o%2==0?o:o+1}return dt.make(t.shape,{values:n})},t.prototype.exp=function(t){this.assertNotComplex(t,"exp");for(var e=t.dataSync(),n=new Float32Array(e.length),r=0;r<e.length;++r)n[r]=Math.exp(e[r]);return dt.make(t.shape,{values:n})},t.prototype.expm1=function(t){this.assertNotComplex(t,"expm1");for(var e=t.dataSync(),n=new Float32Array(e.length),r=0;r<e.length;++r)n[r]=Math.expm1(e[r]);return dt.make(t.shape,{values:n})},t.prototype.log=function(t){this.assertNotComplex(t,"log");for(var e=t.dataSync(),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=e[r];n[r]=Math.log(o)}return dt.make(t.shape,{values:n})},t.prototype.log1p=function(t){this.assertNotComplex(t,"log1p");for(var e=t.dataSync(),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=e[r];n[r]=Math.log1p(o)}return dt.make(t.shape,{values:n})},t.prototype.sqrt=function(t){this.assertNotComplex(t,"sqrt");for(var e=t.dataSync(),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=e[r];n[r]=Math.sqrt(o)}return dt.make(t.shape,{values:n})},t.prototype.rsqrt=function(t){this.assertNotComplex(t,"rsqrt");for(var e=t.dataSync(),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=e[r];n[r]=1/Math.sqrt(o)}return dt.make(t.shape,{values:n})},t.prototype.square=function(t){this.assertNotComplex(t,"square");for(var e=t.dataSync(),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=e[r];n[r]=o*o}return dt.make(t.shape,{values:n})},t.prototype.reciprocal=function(t){this.assertNotComplex(t,"reciprocal");for(var e=t.dataSync(),n=new Float32Array(e.length),r=0;r<e.length;++r)n[r]=1/e[r];return dt.make(t.shape,{values:n})},t.prototype.linear=function(t){return t},t.prototype.relu=function(t){this.assertNotComplex(t,"relu");for(var e=Qe(t.shape,t.dtype),n=e.dataSync(),r=t.dataSync(),o=0;o<r.length;++o)n[o]=Math.max(0,r[o]);return e},t.prototype.prelu=function(t,e){return this.assertNotComplex([t,e],"prelu"),this.broadcastedBinaryOp(t,e,t.dtype,function(t,e){return t<0?e*t:t})},t.prototype.elu=function(t){this.assertNotComplex(t,"elu");for(var e=new Float32Array(t.size),n=t.dataSync(),r=0;r<n.length;++r){var o=n[r];e[r]=0<=o?o:Math.exp(o)-1}return dt.make(t.shape,{values:e})},t.prototype.eluDer=function(t,e){this.assertNotComplex([t,e],"eluDer");for(var n=new Float32Array(e.size),r=e.dataSync(),o=t.dataSync(),i=0;i<r.length;++i){var a=r[i];n[i]=1<=a?o[i]:o[i]*(a+1)}return dt.make(e.shape,{values:n})},t.prototype.selu=function(t){this.assertNotComplex(t,"selu");for(var e=new Float32Array(t.size),n=t.dataSync(),r=0;r<n.length;++r){var o=n[r];e[r]=0<=o?1.0507009873554805*o:1.7580993408473768*(Math.exp(o)-1)}return dt.make(t.shape,{values:e})},t.prototype.clip=function(t,e,n){this.assertNotComplex(t,"clip");for(var r=new Float32Array(t.size),o=t.dataSync(),i=0;i<o.length;++i){var a=o[i];r[i]=n<a?n:a<e?e:a}return dt.make(t.shape,{values:r})},t.prototype.abs=function(t){for(var e=new Float32Array(t.size),n=t.dataSync(),r=0;r<n.length;++r)e[r]=Math.abs(n[r]);return dt.make(t.shape,{values:e})},t.prototype.complexAbs=function(t){for(var e=new Float32Array(t.size),n=t.dataSync(),r=0;r<t.size;++r){var o=n[2*r],i=n[2*r+1];e[r]=Math.hypot(o,i)}return dt.make(t.shape,{values:e})},t.prototype.int=function(t){this.assertNotComplex(t,"int");for(var e=new Int32Array(t.size),n=t.dataSync(),r=0;r<n.length;++r)e[r]=n[r];return dt.make(t.shape,{values:e},"int32")},t.prototype.sigmoid=function(t){this.assertNotComplex(t,"sigmoid");for(var e=new Float32Array(t.size),n=t.dataSync(),r=0;r<n.length;++r)e[r]=1/(1+Math.exp(-n[r]));return dt.make(t.shape,{values:e})},t.prototype.softplus=function(t){this.assertNotComplex(t,"softplus");for(var e=Math.log(1.1920928955078125e-7)+2,n=new Float32Array(t.size),r=t.dataSync(),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 dt.make(t.shape,{values:n})},t.prototype.sin=function(t){this.assertNotComplex(t,"sin");for(var e=new Float32Array(t.size),n=t.dataSync(),r=0;r<n.length;++r)e[r]=Math.sin(n[r]);return dt.make(t.shape,{values:e})},t.prototype.cos=function(t){this.assertNotComplex(t,"cos");for(var e=new Float32Array(t.size),n=t.dataSync(),r=0;r<n.length;++r)e[r]=Math.cos(n[r]);return dt.make(t.shape,{values:e})},t.prototype.tan=function(t){this.assertNotComplex(t,"tan");for(var e=new Float32Array(t.size),n=t.dataSync(),r=0;r<n.length;++r)e[r]=Math.tan(n[r]);return dt.make(t.shape,{values:e})},t.prototype.asin=function(t){this.assertNotComplex(t,"asin");for(var e=new Float32Array(t.size),n=t.dataSync(),r=0;r<n.length;++r)e[r]=Math.asin(n[r]);return dt.make(t.shape,{values:e})},t.prototype.acos=function(t){this.assertNotComplex(t,"acos");for(var e=new Float32Array(t.size),n=t.dataSync(),r=0;r<n.length;++r)e[r]=Math.acos(n[r]);return dt.make(t.shape,{values:e})},t.prototype.atan=function(t){this.assertNotComplex(t,"atan");for(var e=new Float32Array(t.size),n=t.dataSync(),r=0;r<n.length;++r)e[r]=Math.atan(n[r]);return dt.make(t.shape,{values:e})},t.prototype.atan2=function(t,e){return this.assertNotComplex([t,e],"atan2"),this.broadcastedBinaryOp(t,e,t.dtype,function(t,e){return Math.atan2(t,e)})},t.prototype.sinh=function(t){this.assertNotComplex(t,"sinh");for(var e=new Float32Array(t.size),n=t.dataSync(),r=0;r<n.length;++r)e[r]=Math.sinh(n[r]);return dt.make(t.shape,{values:e})},t.prototype.cosh=function(t){this.assertNotComplex(t,"cosh");for(var e=new Float32Array(t.size),n=t.dataSync(),r=0;r<n.length;++r)e[r]=Math.cosh(n[r]);return dt.make(t.shape,{values:e})},t.prototype.tanh=function(t){this.assertNotComplex(t,"tanh");for(var e=new Float32Array(t.size),n=t.dataSync(),r=0;r<n.length;++r)e[r]=w(n[r]);return dt.make(t.shape,{values:e})},t.prototype.asinh=function(t){this.assertNotComplex(t,"asinh");for(var e=new Float32Array(t.size),n=t.dataSync(),r=0;r<n.length;++r)e[r]=Math.asinh(n[r]);return dt.make(t.shape,{values:e})},t.prototype.acosh=function(t){this.assertNotComplex(t,"acosh");for(var e=new Float32Array(t.size),n=t.dataSync(),r=0;r<n.length;++r)e[r]=Math.acosh(n[r]);return dt.make(t.shape,{values:e})},t.prototype.atanh=function(t){this.assertNotComplex(t,"atanh");for(var e=new Float32Array(t.size),n=t.dataSync(),r=0;r<n.length;++r)e[r]=Math.atanh(n[r]);return dt.make(t.shape,{values:e})},t.prototype.erf=function(t){this.assertNotComplex(t,"erf");for(var e=new Float32Array(t.size),n=t.dataSync(),r=0;r<n.length;++r){var o=n[r],i=1/(1+.3275911*o);e[r]=1-((((1.061405429*i-1.453152027)*i+1.421413741)*i-.284496736)*i+.254829592)*i*Math.exp(-o*o)}return dt.make(t.shape,{values:e})},t.prototype.step=function(t,e){void 0===e&&(e=0),this.assertNotComplex(t,"step");for(var n=new Float32Array(t.size),r=t.dataSync(),o=0;o<r.length;++o){var i=r[o];isNaN(i)?n[o]=NaN:n[o]=0<i?1:e}return dt.make(t.shape,{values:n})},t.prototype.conv2d=function(t,e,n){this.assertNotComplex([t,e],"conv2d");for(var r=n.filterHeight,o=n.filterWidth,i=n.dilationHeight,a=n.dilationWidth,s=n.padInfo.left,u=n.padInfo.top,c=zi(n.outShape,t.dtype),l=t.dataSync(),h=e.dataSync(),p=c.values,f=0;f<n.batchSize;++f)for(var d=f*t.strides[0],v=f*c.strides[0],m=0;m<n.outHeight;++m)for(var g=v+m*c.strides[1],y=m*n.strideHeight-s,x=0;x<r;x++){var w=y+x*i;if(!(w<0||w>=n.inHeight))for(var b=x*e.strides[0],E=d+w*t.strides[1],C=0;C<n.outWidth;++C)for(var _=g+C*n.outChannels,S=C*n.strideWidth-u,R=0;R<o;R++){var N=S+R*a;if(!(N<0||N>=n.inWidth))for(var k=b+R*e.strides[1],I=E+N*n.inChannels,T=k,A=0;A<n.inChannels;++A){for(var D=l[I+A],M=0;M<n.outChannels;++M)p[_+M]+=D*h[T+M];T+=n.outChannels}}}return c.toTensor()},t.prototype.conv3d=function(t,e,n){for(var r=n.filterDepth,o=n.filterHeight,i=n.filterWidth,a=n.dilationDepth,s=n.dilationHeight,u=n.dilationWidth,c=n.padInfo.front,l=n.padInfo.left,h=n.padInfo.top,p=zi(n.outShape,t.dtype),f=t.dataSync(),d=e.dataSync(),v=p.values,m=0;m<n.batchSize;++m)for(var g=m*t.strides[0],y=m*p.strides[0],x=0;x<n.outDepth;++x)for(var w=y+x*p.strides[1],b=x*n.strideDepth-c,E=0;E<r;E++){var C=b+E*a;if(!(C<0||C>=n.inDepth))for(var _=E*e.strides[0],S=g+C*t.strides[1],R=0;R<n.outHeight;++R)for(var N=w+R*p.strides[2],k=R*n.strideHeight-h,I=0;I<o;I++){var T=k+I*s;if(!(T<0||T>=n.inHeight))for(var A=_+I*e.strides[1],D=S+T*t.strides[2],M=0;M<n.outWidth;++M)for(var O=N+M*n.outChannels,P=M*n.strideWidth-l,F=0;F<i;F++){var L=P+F*u;if(!(L<0||L>=n.inWidth))for(var B=A+F*e.strides[2],W=D+L*n.inChannels,z=B,U=0;U<n.inChannels;++U){for(var G=f[W+U],V=0;V<n.outChannels;++V)v[O+V]+=G*d[z+V];z+=n.outChannels}}}}return p.toTensor()},t.prototype.conv2dDerInput=function(t,e,n){this.assertNotComplex([t,e],"conv2dDerInput");for(var r=zi(n.inShape,"float32"),o=r.values,i=r.strides,a=i[0],s=i[1],u=i[2],c=t.dataSync(),l=t.strides,h=l[0],p=l[1],f=l[2],d=e.dataSync(),v=e.strides,m=v[0],g=v[1],y=v[2],x=n.batchSize,w=n.filterHeight,b=n.filterWidth,E=n.inChannels,C=n.inHeight,_=n.inWidth,S=n.outChannels,R=n.outHeight,N=n.outWidth,k=n.strideHeight,I=n.strideWidth,T=w-1-n.padInfo.top,A=b-1-n.padInfo.left,D=0;D<x;++D)for(var M=0;M<E;++M)for(var O=0;O<C;++O)for(var P=O-T,F=Math.max(0,Math.ceil(P/k)),L=Math.min(R,(w+P)/k),B=0;B<_;++B){for(var W=B-A,z=Math.max(0,Math.ceil(W/I)),U=Math.min(N,(b+W)/I),G=0,V=F;V<L;++V)for(var H=V*k-P,q=z;q<U;++q)for(var j=h*D+p*V+f*q,$=m*(w-1-H)+g*(b-1-(q*I-W))+y*M,K=0;K<S;++K)G+=c[j+K]*d[$+K];o[a*D+s*O+u*B+M]=G}return r.toTensor()},t.prototype.conv3dDerInput=function(t,e,n){for(var r=zi(n.inShape,"float32"),o=r.values,i=r.strides,a=i[0],s=i[1],u=i[2],c=i[3],l=t.dataSync(),h=t.strides,p=h[0],f=h[1],d=h[2],v=h[3],m=e.dataSync(),g=e.strides,y=g[0],x=g[1],w=g[2],b=g[3],E=n.batchSize,C=n.filterDepth,_=n.filterHeight,S=n.filterWidth,R=n.inChannels,N=n.inDepth,k=n.inHeight,I=n.inWidth,T=n.outChannels,A=n.outDepth,D=n.outHeight,M=n.outWidth,O=n.strideDepth,P=n.strideHeight,F=n.strideWidth,L=C-1-n.padInfo.front,B=_-1-n.padInfo.top,W=S-1-n.padInfo.left,z=0;z<E;++z)for(var U=0;U<R;++U)for(var G=0;G<N;++G)for(var V=G-L,H=Math.max(0,Math.ceil(V/O)),q=Math.min(A,(C+V)/O),j=0;j<k;++j)for(var $=j-B,K=Math.max(0,Math.ceil($/P)),X=Math.min(D,(_+$)/P),Y=0;Y<I;++Y){for(var Q=Y-W,J=Math.max(0,Math.ceil(Q/F)),Z=Math.min(M,(S+Q)/F),tt=0,et=H;et<q;++et)for(var nt=et*O-V,rt=K;rt<X;++rt)for(var ot=rt*P-$,it=J;it<Z;++it)for(var at=p*z+f*et+d*rt+v*it,st=y*(C-1-nt)+x*(_-1-ot)+w*(S-1-(it*F-Q))+b*U,ut=0;ut<T;++ut)tt+=l[at+ut]*m[st+ut];o[a*z+s*G+u*j+c*Y+U]=tt}return r.toTensor()},t.prototype.conv2dDerFilter=function(t,e,n){this.assertNotComplex([t,e],"conv2dDerFilter");for(var r=n.strideHeight,o=n.strideWidth,i=n.filterHeight,a=n.filterWidth,s=zi(n.filterShape,"float32"),u=n.padInfo.left,c=n.padInfo.top,l=t.bufferSync(),h=e.bufferSync(),p=0;p<i;++p)for(var f=Math.max(0,Math.ceil((c-p)/r)),d=Math.min(n.outHeight,(n.inHeight+c-p)/r),v=0;v<a;++v)for(var m=Math.max(0,Math.ceil((u-v)/o)),g=Math.min(n.outWidth,(n.inWidth+u-v)/o),y=0;y<n.inChannels;++y)for(var x=0;x<n.outChannels;++x){for(var w=0,b=0;b<n.batchSize;++b)for(var E=f;E<d;++E)for(var C=p+E*r-c,_=m;_<g;++_){var S=v+_*o-u;w+=l.get(b,C,S,y)*h.get(b,E,_,x)}s.set(w,p,v,y,x)}return s.toTensor()},t.prototype.conv3dDerFilter=function(t,e,n){for(var r=n.strideDepth,o=n.strideHeight,i=n.strideWidth,a=n.filterDepth,s=n.filterHeight,u=n.filterWidth,c=zi(n.filterShape,"float32"),l=c.values,h=c.strides,p=h[0],f=h[1],d=h[2],v=h[3],m=e.dataSync(),g=e.strides,y=g[0],x=g[1],w=g[2],b=g[3],E=t.dataSync(),C=t.strides,_=C[0],S=C[1],R=C[2],N=C[3],k=n.padInfo.front,I=n.padInfo.left,T=n.padInfo.top,A=0;A<a;++A)for(var D=Math.max(0,Math.ceil((k-A)/r)),M=Math.min(n.outDepth,(n.inDepth+k-A)/r),O=A*p,P=0;P<s;++P)for(var F=Math.max(0,Math.ceil((T-P)/o)),L=Math.min(n.outHeight,(n.inHeight+T-P)/o),B=P*f+O,W=0;W<u;++W)for(var z=Math.max(0,Math.ceil((I-W)/i)),U=Math.min(n.outWidth,(n.inWidth+I-W)/i),G=W*d+B,V=0;V<n.inChannels;++V)for(var H=V*v+G,q=0;q<n.outChannels;++q){for(var j=0,$=0;$<n.batchSize;++$)for(var K=$*_,X=$*y,Y=D;Y<M;++Y)for(var Q=(A+Y*r-k)*S+K,J=Y*x+X,Z=F;Z<L;++Z)for(var tt=(P+Z*o-T)*R+Q,et=Z*w+J,nt=z;nt<U;++nt){var rt=nt*b+et;j+=E[(W+nt*i-I)*N+tt+V]*m[rt+q]}l[H+q]=j}return c.toTensor()},t.prototype.depthwiseConv2D=function(t,e,n){this.assertNotComplex([t,e],"depthwiseConv2D");for(var r=n.filterHeight,o=n.filterWidth,i=n.dilationHeight,a=n.dilationWidth,s=n.padInfo.left,u=n.padInfo.top,c=n.outChannels/n.inChannels,l=zi(n.outShape,t.dtype),h=t.dataSync(),p=e.dataSync(),f=l.values,d=0;d<n.batchSize;++d)for(var v=d*t.strides[0],m=d*l.strides[0],g=0;g<n.outHeight;++g)for(var y=m+g*l.strides[1],x=g*n.strideHeight-s,w=0;w<r;++w){var b=x+w*i;if(!(b<0||b>=n.inHeight))for(var E=w*e.strides[0],C=v+b*t.strides[1],_=0;_<n.outWidth;++_)for(var S=y+_*l.strides[2],R=_*n.strideWidth-u,N=0;N<o;++N){var k=R+N*a;if(!(k<0||k>=n.inWidth))for(var I=E+N*e.strides[1],T=C+k*n.inChannels,A=S,D=I,M=0;M<n.inChannels;++M){for(var O=h[T+M],P=0;P<c;++P)f[A+P]+=O*p[D+P];A+=c,D+=c}}}return l.toTensor()},t.prototype.depthwiseConv2DDerInput=function(t,e,n){this.assertNotComplex([t,e],"depthwiseConv2DDerInput");for(var r=zi(n.inShape,"float32"),o=r.values,i=r.strides,a=i[0],s=i[1],u=i[2],c=t.dataSync(),l=t.strides,h=l[0],p=l[1],f=l[2],d=e.dataSync(),v=e.strides,m=v[0],g=v[1],y=v[2],x=n.batchSize,w=n.filterHeight,b=n.filterWidth,E=n.inChannels,C=n.inHeight,_=n.inWidth,S=n.outChannels,R=n.outHeight,N=n.outWidth,k=n.strideHeight,I=n.strideWidth,T=w-1-n.padInfo.top,A=b-1-n.padInfo.left,D=S/E,M=0;M<x;++M)for(var O=0;O<E;++O)for(var P=0;P<C;++P)for(var F=P-T,L=Math.max(0,Math.ceil(F/k)),B=Math.min(R,(w+F)/k),W=0;W<_;++W){for(var z=W-A,U=Math.max(0,Math.ceil(z/I)),G=Math.min(N,(b+z)/I),V=0,H=L;H<B;++H)for(var q=H*k-F,j=U;j<G;++j)for(var $=h*M+p*H+f*j,K=m*(w-1-q)+g*(b-1-(j*I-z))+y*O,X=0;X<D;++X)V+=c[$+(O*D+X)]*d[K+X];o[a*M+s*P+u*W+O]=V}return r.toTensor()},t.prototype.depthwiseConv2DDerFilter=function(t,e,n){this.assertNotComplex([t,e],"depthwiseConv2DDerFilter");for(var r=n.strideHeight,o=n.strideWidth,i=n.filterHeight,a=n.filterWidth,s=zi(n.filterShape,"float32"),u=n.padInfo.left,c=n.padInfo.top,l=n.outChannels/n.inChannels,h=t.bufferSync(),p=e.bufferSync(),f=0;f<i;++f)for(var d=Math.max(0,Math.ceil((c-f)/r)),v=Math.min(n.outHeight,(n.inHeight+c-f)/r),m=0;m<a;++m)for(var g=Math.max(0,Math.ceil((u-m)/o)),y=Math.min(n.outWidth,(n.inWidth+u-m)/o),x=0;x<n.outChannels;++x){for(var w=Math.trunc(x/l),b=x%l,E=0,C=0;C<n.batchSize;++C)for(var _=d;_<v;++_)for(var S=f+_*r-c,R=g;R<y;++R){var N=m+R*o-u;E+=h.get(C,S,N,w)*p.get(C,_,R,x)}s.set(E,f,m,w,b)}return s.toTensor()},t.prototype.tile=function(t,e){this.assertNotComplex(t,"tile");for(var n=new Array(t.rank),r=0;r<n.length;r++)n[r]=t.shape[r]*e[r];var o=zi(n,t.dtype),i=t.bufferSync();for(r=0;r<o.values.length;++r){for(var a=o.indexToLoc(r),s=new Array(t.rank),u=0;u<s.length;u++)s[u]=a[u]%t.shape[u];var c=i.locToIndex(s);o.values[r]=i.values[c]}return o.toTensor()},t.prototype.pad=function(n,t,e){this.assertNotComplex(n,"pad");var r=t.map(function(t,e){return t[0]+n.shape[e]+t[1]}),o=t.map(function(t){return t[0]}),i=n.bufferSync(),a=zi(r,n.dtype);0!==e&&a.values.fill(e);for(var s=0;s<n.size;s++){var u=i.indexToLoc(s),c=u.map(function(t,e){return t+o[e]});a.set.apply(a,[i.get.apply(i,u)].concat(c))}return a.toTensor()},t.prototype.transpose=function(t,e){this.assertNotComplex(t,"transpose");for(var n=new Array(t.rank),r=0;r<n.length;r++)n[r]=t.shape[e[r]];var o=t.dataSync(),i=zi(n,t.dtype),a=t.bufferSync();for(r=0;r<t.size;++r){for(var s=a.indexToLoc(r),u=new Array(s.length),c=0;c<u.length;c++)u[c]=s[e[c]];var l=i.locToIndex(u);i.values[l]=o[r]}return i.toTensor()},t.prototype.gather=function(t,e,n){this.assertNotComplex([t,e],"gather");var r=t.shape.slice(),o=e.dataSync();r[n]=o.length;for(var i=zi(r,t.dtype),a=t.bufferSync(),s=0;s<i.size;++s){var u=i.indexToLoc(s),c=u.slice();c[n]=o[u[n]];var l=a.locToIndex(c);i.values[s]=a.values[l]}return i.toTensor()},t.prototype.batchToSpaceND=function(t,e,n){this.assertNotComplex([t],"batchToSpaceND");var r=e.reduce(function(t,e){return t*e}),o=de(t.shape,e,r),i=ve(o.length,e.length),a=me(t.shape,e,r),s=ge(n,e.length),u=ye(a,n,e.length);return t.reshape(o).transpose(i).reshape(a).slice(s,u)},t.prototype.spaceToBatchND=function(t,e,n){this.assertNotComplex([t],"spaceToBatchND");var r=e.reduce(function(t,e){return t*e}),o=[[0,0]];o.push.apply(o,n);for(var i=1+e.length;i<t.shape.length;++i)o.push([0,0]);var a=t.pad(o),s=de(a.shape,e,r,!1),u=ve(s.length,e.length,!1),c=me(a.shape,e,r,!1);return a.reshape(s).transpose(u).reshape(c)},t.prototype.pool=function(t,e,n){this.assertNotComplex(t,"pool");for(var r=e.strideHeight,o=e.strideWidth,i=e.dilationHeight,a=e.dilationWidth,s=e.effectiveFilterHeight,u=e.effectiveFilterWidth,c=e.padInfo.top,l=e.padInfo.left,h="max"===n?Number.NEGATIVE_INFINITY:Number.POSITIVE_INFINITY,p=t.dataSync(),f=zi(e.outShape,t.dtype),d=f.values,v=e.outShape[1]*e.outShape[2]*e.outShape[3],m=e.outShape[2]*e.outShape[3],g=e.outShape[3],y=0;y<e.batchSize;++y)for(var x=y*v,w=y*t.strides[0],b=0;b<e.inChannels;++b)for(var E=0;E<e.outHeight;++E)for(var C=E*r-c,_=Math.max(0,C),S=Math.min(e.inHeight,s+C),R=x+E*m,N=0;N<e.outWidth;++N){for(var k=N*o-l,I=Math.max(0,k),T=Math.min(e.inWidth,u+k),A=h,D=0,M=0,O=_;O<S;O+=i){for(var P=w+O*t.strides[1],F=I;F<T;F+=a){var L=p[P+F*t.strides[2]+b];"max"===n&&A<L?A=L:"avg"===n&&(D+=L,M++)}if(isNaN(A))break}d[R+N*g+b]="avg"===n?D/M:A}return f.toTensor()},t.prototype.maxPool=function(t,e){return this.pool(t,e,"max")},t.prototype.maxPoolPositions=function(t,e){for(var n=zi(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=t.bufferSync(),p=0;p<e.batchSize;++p)for(var f=0;f<e.inChannels;++f)for(var d=0;d<e.outHeight;++d){for(var v=d*r-c,m=v;m<0;)m+=i;for(var g=Math.min(e.inHeight,s+v),y=0;y<e.outWidth;++y){for(var x=y*o-l,w=x;w<0;)w+=a;for(var b=Math.min(e.inWidth,u+x),E=Number.NEGATIVE_INFINITY,C=-1,_=m;_<g;_+=i)for(var S=_-v,R=w;R<b;R+=a){var N=R-x,k=h.get(p,_,R,f);E<k&&(E=k,C=S*u+N)}n.set(C,p,d,y,f)}}return n.toTensor()},t.prototype.maxPoolBackprop=function(t,e,n,r){this.assertNotComplex([e,n],"maxPoolBackprop");for(var o=this.maxPoolPositions(e,r),i=r.strideHeight,a=r.strideWidth,s=r.dilationHeight,u=r.dilationWidth,c=r.effectiveFilterHeight,l=r.effectiveFilterWidth,h=l-1-r.padInfo.left,p=c-1-r.padInfo.top,f=zi(e.shape,"float32"),d=o.bufferSync(),v=t.bufferSync(),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 w=y-p,b=x-h,E=0,C=0;C<c;C+=s){var _=(w+C)/i;if(!(_<0||_>=r.outHeight||Math.floor(_)!==_))for(var S=0;S<l;S+=u){var R=(b+S)/a;if(!(R<0||R>=r.outWidth||Math.floor(R)!==R)){var N=c*l-1-d.get(m,_,R,g)===C*l+S?1:0;0!==N&&(E+=v.get(m,_,R,g)*N)}}}f.set(E,m,y,x,g)}return f.toTensor()},t.prototype.avgPoolBackprop=function(t,e,n){this.assertNotComplex([t,e],"avgPoolBackprop");for(var r=n.strideHeight,o=n.strideWidth,i=n.filterHeight,a=n.filterWidth,s=n.dilationHeight,u=n.dilationWidth,c=n.effectiveFilterHeight,l=n.effectiveFilterWidth,h=l-1-n.padInfo.left,p=c-1-n.padInfo.top,f=zi(e.shape,"float32"),d=1/(i*a),v=t.bufferSync(),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 w=y-p,b=x-h,E=0,C=0;C<c;C+=s){var _=(w+C)/r;if(!(_<0||_>=n.outHeight||Math.floor(_)!==_))for(var S=0;S<l;S+=u){var R=(b+S)/o;R<0||R>=n.outWidth||Math.floor(R)!==R||(E+=v.get(m,_,R,g))}}f.set(E*d,m,y,x,g)}return f.toTensor()},t.prototype.cast=function(t,e){return an(t,e,this)},t.prototype.reshape=function(t,e){return sn(t,e)},t.prototype.avgPool=function(t,e){return this.assertNotComplex(t,"avgPool"),this.pool(t,e,"avg").toFloat()},t.prototype.resizeBilinear=function(t,e,n,r){this.assertNotComplex(t,"resizeBilinear");for(var o=t.shape,i=o[0],a=o[1],s=o[2],u=o[3],c=t.dataSync(),l=new Float32Array(B([i,e,n,u])),h=[r&&1<e?a-1:a,r&&1<n?s-1:s],p=[r&&1<e?e-1:e,r&&1<n?n-1:n],f=0,d=h[0]/p[0],v=h[1]/p[1],m=0;m<i;m++)for(var g=0;g<e;g++)for(var y=d*g,x=Math.floor(y),w=y-x,b=Math.min(a-1,Math.ceil(y)),E=m*t.strides[0]+x*t.strides[1],C=m*t.strides[0]+b*t.strides[1],_=0;_<n;_++)for(var S=v*_,R=Math.floor(S),N=S-R,k=Math.min(s-1,Math.ceil(S)),I=E+R*t.strides[2],T=C+R*t.strides[2],A=E+ +k*t.strides[2],D=C+k*t.strides[2],M=0;M<u;M++){var O=c[I+M],P=c[T+M],F=O+(c[A+M]-O)*N,L=F+(P+(c[D+M]-P)*N-F)*w;l[f++]=L}return Ge(l,[i,e,n,u])},t.prototype.resizeBilinearBackprop=function(t,e,n){this.assertNotComplex([t,e],"resizeBilinearBackprop");for(var r=e.shape,o=r[0],i=r[1],a=r[2],s=r[3],u=t.shape,c=u[1],l=u[2],h=new Float32Array(o*i*a*s),p=[n&&1<c?i-1:i,n&&1<l?a-1:a],f=[n&&1<c?c-1:c,n&&1<l?l-1:l],d=p[0]/f[0],v=p[1]/f[1],m=t.dataSync(),g=0,y=0;y<o;y++)for(var x=y*e.strides[0],w=0;w<c;w++)for(var b=w*d,E=Math.floor(b),C=Math.min(Math.ceil(b),i-1),_=x+E*e.strides[1],S=x+C*e.strides[1],R=b-E,N=1-R,k=0;k<l;k++)for(var I=k*v,T=Math.floor(I),A=Math.min(Math.ceil(I),a-1),D=I-T,M=1-D,O=_+T*e.strides[2],P=_+A*e.strides[2],F=S+T*e.strides[2],L=S+A*e.strides[2],B=N*M,W=N*D,z=R*M,U=R*D,G=0;G<s;G++){var V=m[g++];h[O+G]+=V*B,h[P+G]+=V*W,h[F+G]+=V*z,h[L+G]+=V*U}return $e(h,[o,a,i,s],e.dtype)},t.prototype.resizeNearestNeighbor=function(t,e,n,r){this.assertNotComplex(t,"resizeNearestNeighbor");for(var o=t.shape,i=o[0],a=o[1],s=o[2],u=o[3],c=t.dataSync(),l=new Float32Array(i*e*n*u),h=[r&&1<e?a-1:a,r&&1<n?s-1:s],p=[r&&1<e?e-1:e,r&&1<n?n-1:n],f=h[0]/p[0],d=h[1]/p[1],v=0,m=0;m<i;m++)for(var g=m*t.strides[0],y=0;y<e;y++)for(var x=f*y,w=g+Math.min(a-1,r?Math.round(x):Math.floor(x))*t.strides[1],b=0;b<n;b++)for(var E=d*b,C=w+Math.min(s-1,r?Math.round(E):Math.floor(E))*t.strides[2],_=0;_<u;_++){var S=c[C+_];l[v++]=S}return Ge(l,[i,e,n,u],t.dtype)},t.prototype.resizeNearestNeighborBackprop=function(t,e,n){this.assertNotComplex([t,e],"resizeNearestNeighborBackprop");for(var r=e.shape,o=r[0],i=r[1],a=r[2],s=r[3],u=t.shape,c=u[1],l=u[2],h=new Float32Array(o*i*a*s),p=t.dataSync(),f=[n&&1<c?i-1:i,n&&1<l?a-1:a],d=[n&&1<c?c-1:c,n&&1<l?l-1:l],v=f[0]/d[0],m=f[1]/d[1],g=1/v,y=1/m,x=2*Math.ceil(g)+2,w=2*Math.ceil(y)+2,b=0;b<o;b++)for(var E=b*e.strides[0],C=0;C<i;C++)for(var _=E+C*e.strides[1],S=Math.floor(C*g),R=Math.floor(S-x/2),N=0;N<a;N++)for(var k=_+N*e.strides[2],I=Math.floor(N*y),T=Math.floor(I-w/2),A=0;A<s;A++){for(var D=0,M=0;M<x;M++){var O=M+R;if(!(O<0||c<=O)){var P=E+O*t.strides[1],F=O*v;if(C===Math.min(i-1,n?Math.round(F):Math.floor(F)))for(var L=0;L<w;L++){var B=L+T;if(!(B<0||l<=B)){var W=P+B*t.strides[2],z=B*m;N===Math.min(a-1,n?Math.round(z):Math.floor(z))&&(D+=p[W+A])}}}}h[k+A]=D}return $e(h,e.shape,e.dtype)},t.prototype.batchNormalization=function(t,e,n,r,o,i){this.assertNotComplex([t,e,n,o,i],"batchNorm");for(var a=t.dataSync(),s=e.dataSync(),u=n.dataSync(),c=o?o.dataSync():new Float32Array([1]),l=i?i.dataSync():new Float32Array([0]),h=new Float32Array(a.length),p=l.length,f=c.length,d=u.length,v=s.length,m=0,g=0,y=0,x=0,w=0;w<a.length;++w)h[w]=l[m++]+(a[w]-s[g++])*c[y++]/Math.sqrt(u[x++]+r),p<=m&&(m=0),v<=g&&(g=0),f<=y&&(y=0),d<=x&&(x=0);return $e(h,t.shape)},t.prototype.localResponseNormalization4D=function(t,a,e,n,r){this.assertNotComplex(t,"localResponseNormalization4D");var s=t.shape[3],u=s-1,c=t.dataSync(),o=t.size,i=new Float32Array(o);function l(t){for(var e=t%s,n=t-e+Math.max(0,e-a),r=t-e+Math.min(e+a,u),o=0;n<=r;n++){var i=c[n];o+=i*i}return o}for(var h=0;h<o;h++){var p=l(h),f=c[h]*Math.pow(e+n*p,-r);i[h]=f}return $e(i,t.shape)},t.prototype.LRNGrad=function(t,e,n,r,o,i,a){this.assertNotComplex(t,"LRNGrad");for(var s=t.shape[3],u=t.dataSync(),c=e.dataSync(),l=n.dataSync(),h=new Float32Array(t.size),p=t.size,f=0;f<p;f++){for(var d=f%s,v=f-d+Math.max(0,d-r),m=f-d+Math.min(s,d+r+1),g=0,y=v;y<m;y++)g+=Math.pow(c[y],2);for(g=i*g+o,y=v;y<m;y++){var x=-2*i*a*c[y]*l[f]/g;f===y&&(x+=Math.pow(g,-a)),x*=u[f],h[y]+=x}}return $e(h,t.shape)},t.prototype.multinomial=function(t,e,n,r){this.assertNotComplex(t,"multinomial");for(var o=e?t:Le(t),i=o.shape[0],a=o.shape[1],s=Qe([i,n],"int32"),u=s.dataSync(),c=o.dataSync(),l=0;l<i;++l){var h=l*a,p=new Float32Array(a-1);p[0]=c[h];for(var f=1;f<p.length;++f)p[f]=p[f-1]+c[h+f];for(var d=Bi(r.toString()),v=l*n,m=0;m<n;++m){var g=d();u[v+m]=p.length;for(var y=0;y<p.length;y++)if(g<p[y]){u[v+m]=y;break}}}return s},t.prototype.oneHot=function(t,e,n,r){this.assertNotComplex(t,"oneHot");var o=new Float32Array(t.size*e);o.fill(r);for(var i=t.dataSync(),a=0;a<t.size;++a)0<=i[a]&&i[a]<e&&(o[a*e+i[a]]=n);return qe(o,[t.size,e],"int32")},t.prototype.nonMaxSuppression=function(t,e,n,r,o){return this.assertNotComplex(t,"nonMaxSuppression"),ln(t.dataSync(),e.dataSync(),n,r,o)},t.prototype.fft=function(t){return this.fftBatch(t,!1)},t.prototype.ifft=function(t){return this.fftBatch(t,!0)},t.prototype.fftBatch=function(t,e){for(var n=t.shape[0],r=t.shape[1],o=zi(t.shape,"float32"),i=zi(t.shape,"float32"),a=ze(t).as2D(n,r),s=Ue(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=We(c,l),p=this.fftImpl(h,e).dataSync(),f=0;f<r;f++){var d=cn(p,f);o.values[u*r+f]=d.real,i.values[u*r+f]=d.imag}return We(o.toTensor(),i.toTensor()).as2D(n,r)},t.prototype.fftImpl=function(t,e){var n=t.as1D(),r=n.size;if(this.isExponentOf2(r)){var o=this.fftRadix2(n,r,e).as2D(t.shape[0],t.shape[1]);return e&&(o=We(ze(o).div(Ve(r)),Ue(o).div(Ve(r)))),o}var i=t.dataSync(),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 We(a.real,a.imag).as2D(t.shape[0],t.shape[1])},t.prototype.isExponentOf2=function(t){return 0==(t&t-1)},t.prototype.fftRadix2=function(t,e,n){if(1===e)return t;var r=t.dataSync(),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=We(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=We(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=We(c.real,c.imag).mul(u),h=a.add(l),p=a.sub(l),f=ze(h).concat(ze(p)),d=Ue(h).concat(Ue(p));return We(f,d).as1D()},t.prototype.fourierTransformByMatmul=function(t,e,n){for(var r=new Float32Array(2*e),o=0;o<e;o++){for(var i=0,a=0,s=0;s<e;s++){var u=(d=o*s,v=e,void 0,m=(n?2:-2)*Math.PI*(d/v),{real:Math.cos(m),imag:Math.sin(m)}),c=cn(t,s);i+=c.real*u.real-c.imag*u.imag,a+=c.real*u.imag+c.imag*u.real}n&&(i/=e,a/=e),h=i,p=a,(l=r)[2*(f=o)]=h,l[2*f+1]=p}var l,h,p,f,d,v,m;return r},t.prototype.depthToSpace=function(t,e,n){D("NHWC"===n,function(){return"Only NHWC dataFormat supported on CPU for depthToSpace. Got "+n}),D(1<e,function(){return"blockSize should be > 1 for depthToSpace, but was: "+e});for(var r=t.shape[0],o=t.shape[1],i=t.shape[2],a=t.shape[3],s=o*e,u=i*e,c=a/(e*e),l=t.dataSync(),h=new Float32Array(r*s*u*c),p=0,f=0;f<r;++f)for(var d=0;d<s;++d)for(var v=Math.floor(d/e),m=d%e,g=0;g<u;++g)for(var y=Math.floor(g/e),x=(m*e+g%e)*c,w=0;w<c;++w){var b=w+x+a*(y+i*(v+o*f));h[p++]=l[b]}return $e(h,[r,s,u,c])},t.prototype.broadcastedBinaryOp=function(a,s,t,u){var e=xn(a.shape,s.shape),c=zi(e,t),l=a.dataSync(),h=s.dataSync(),p=gn(a.shape,e),f=gn(s.shape,e),d=c.values;if(p.length+f.length===0)for(var n=0;n<d.length;++n)d[n]=u(l[n%l.length],h[n%h.length]);else{var v=a.bufferSync(),m=s.bufferSync(),r=function(t){var e=c.indexToLoc(t),n=e.slice(-a.rank);p.forEach(function(t){return n[t]=0});var r=v.locToIndex(n),o=e.slice(-s.rank);f.forEach(function(t){return o[t]=0});var i=m.locToIndex(o);d[t]=u(l[r],h[i])};for(n=0;n<d.length;++n)r(n)}return c.toTensor()},t.prototype.broadcastedBinaryComplexOp=function(s,u,c){var t=xn(s.shape,u.shape),l=zi(t,"float32"),e=zi(t,"float32"),h=s.dataSync(),p=u.dataSync(),f=gn(s.shape,t),d=gn(u.shape,t),v=l.values,m=e.values;if(f.length+d.length===0)for(var n=0;n<v.length;n++){var r=n%h.length,o=n%p.length,i=c(h[2*r],h[2*r+1],p[2*o],p[2*o+1]);v[n]=i.real,m[n]=i.imag}else{var g=this.data.get(s.dataId).complexTensors.real.bufferSync(),y=this.data.get(u.dataId).complexTensors.real.bufferSync(),a=function(t){var e=l.indexToLoc(t),n=e.slice(-s.rank);f.forEach(function(t){return n[t]=0});var r=g.locToIndex(n),o=e.slice(-u.rank);d.forEach(function(t){return o[t]=0});var i=y.locToIndex(o),a=c(h[2*r],h[2*r+1],p[2*i],p[2*i+1]);v[t]=a.real,m[t]=a.imag};for(n=0;n<v.length;n++)a(n)}return this.complex(l.toTensor(),e.toTensor())},t.prototype.split=function(t,e,n){return pn(t,e,n)},t.prototype.dispose=function(){},t.prototype.floatPrecision=function(){return 32},t.prototype.cropAndResize=function(t,e,n,r,o,i){for(var a=t.shape,s=a[0],u=a[1],c=a[2],l=a[3],h=e.shape[0],p=r[0],f=r[1],d=zi([h,p,f,l],t.dtype),v=e.dataSync(),m=n.dataSync(),g=t.dataSync(),y=t.strides,x=d.strides,w=0;w<h;w++){var b=4*w,E=v[b],C=v[b+1],_=v[b+2],S=v[b+3],R=m[w];if(!(s<=R))for(var N=1<p?(_-E)*(u-1)/(p-1):0,k=1<f?(S-C)*(c-1)/(f-1):0,I=0;I<p;I++){var T=1<p?E*(u-1)+I*N:.5*(E+_)*(u-1);if(T<0||u-1<T)for(var A=0;A<f;A++)for(var D=0;D<l;D++){var M=D+A*x[2]+I*x[1]+w*x[0];d.values[M]=i}else if("bilinear"===o){var O=Math.floor(T),P=Math.ceil(T),F=T-O;for(A=0;A<f;A++)if((q=1<f?C*(c-1)+A*k:.5*(C+S)*(c-1))<0||c-1<q)for(D=0;D<l;D++)M=D+A*x[2]+I*x[1]+w*x[0],d.values[M]=i;else{var L=Math.floor(q),B=Math.ceil(q),W=q-L;for(D=0;D<l;D++){var z=g[M=D+L*y[2]+O*y[1]+R*y[0]],U=g[M=D+B*y[2]+O*y[1]+R*y[0]],G=g[M=D+L*y[2]+P*y[1]+R*y[0]],V=z+(U-z)*W,H=G+(g[M=D+B*y[2]+P*y[1]+R*y[0]]-G)*W;M=D+A*x[2]+I*x[1]+w*x[0],d.values[M]=V+(H-V)*F}}}else for(A=0;A<f;++A){var q;if((q=1<f?C*(c-1)+A*k:.5*(C+S)*(c-1))<0||c-1<q)for(D=0;D<l;D++)M=D+A*x[2]+I*x[1]+w*x[0],d.values[M]=i;else{var j=Math.round(q),$=Math.round(T);for(D=0;D<l;D++){var K=D+j*y[2]+$*y[1]+R*y[0],X=D+A*x[2]+I*x[1]+w*x[0];d.values[X]=g[K]}}}}}return d.toTensor()},t.prototype.sparseToDense=function(t,e,n,r){var o=Te(0,t,n),i=o.sliceRank,a=o.numUpdates,s=o.sliceSize,u=o.strides,c=o.outputSize;return this.scatter(t,e,n,c,s,a,i,u,r,!1)},t.prototype.gatherND=function(t,e){var n=e.shape,r=n[n.length-1],o=Ne(t,e),i=o[0],a=o[1],s=o[2],u=o[3];if(0===a)return Ge([],i,t.dtype);for(var c=new lt([a,s],t.dtype),l=e.dataSync(),h=t.dataSync(),p=0;p<a;p++){for(var f=[],d=0,v=0;v<r;v++){var m=l[p*r+v];d+=m*u[v],f.push(m)}if(d<0||d>=t.size/s)throw new Error("Invalid indices: "+f+" does not index into "+t.shape);for(var g=0;g<s;g++)c.values[p*s+g]=h[d*s+g]}return c.toTensor().reshape(i)},t.prototype.scatterND=function(t,e,n){var r=Te(0,t,n),o=r.sliceRank,i=r.numUpdates,a=r.sliceSize,s=r.strides,u=r.outputSize,c=Ve(0);return this.scatter(t,e,n,u,a,i,o,s,c,!0)},t.prototype.fill=function(t,e,n){var r=M(n=n||q(e),B(t));return r.fill(e),dt.make(t,{values:r},n)},t.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)},t.prototype.zerosLike=function(t){var e=M(t.dtype,B(t.shape));return dt.make(t.shape,{values:e},t.dtype)},t.prototype.scatter=function(t,e,n,r,o,i,a,s,u,c){var l=[r/o,o],h=t.dataSync(),p=e.dataSync();if(0===r)return Ge([],n,e.dtype);var f=new lt(l,e.dtype);f.values.fill(u.dataSync()[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||r/o<=m)throw new Error("Invalid indices: "+v+" does not index into "+n);for(var x=0;x<o;x++)c?f.values[m*o+x]+=p[d*o+x]:f.values[m*o+x]=0===e.rank?p[0]:p[d*o+x]}return 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n.getReshapedInputDimensions(e)})},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 xh({width:this.getInputWidth(t),height:this.getInputHeight(t)},this.inputSize)},t.prototype.toBatchTensor=function(r,o){var i=this;return void 0===o&&(o=!0),this._inputSize=r,ue(function(){var t=bh(i.batchSize,0,1).map(function(t){var e=i.getInput(t);if(e instanceof dt){var n=dh(e)?e:e.expandDims();return(n=mp(n,o)).shape[1]===r&&n.shape[2]===r||(n=Wc.resizeBilinear(n,[r,r])),n.as3D(r,r,3)}if(e instanceof 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new Error("toNetInput -"+o(e)+" tf.Tensor4D with batchSize "+n+" passed, but not supported in input array")}}),[4,Promise.all(e.map(function(t){return dp(t)&&ip(t)}))];case 1:return t.sent(),[2,new gp(e,Array.isArray(n))]}})})}var xp=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 n=this;return this._paramMappings.map(function(t){var e=t.paramPath;return{path:e,tensor:n.getParamFromPath(e)}})},t.prototype.getTrainableParams=function(){return this.getParamList().filter(function(t){return t.tensor instanceof vt})},t.prototype.getFrozenParams=function(){return this.getParamList().filter(function(t){return!(t.tensor instanceof vt)})},t.prototype.variable=function(){var r=this;this.getFrozenParams().forEach(function(t){var e=t.path,n=t.tensor;r.reassignParamFromPath(e,n.variable())})},t.prototype.freeze=function(){var o=this;this.getTrainableParams().forEach(function(t){var e=t.path,n=t.tensor,r=Ge(n.dataSync());n.dispose(),o.reassignParamFromPath(e,r)})},t.prototype.dispose=function(e){void 0===e&&(e=!0),this.getParamList().forEach(function(t){if(e&&t.tensor.isDisposed)throw new Error("param tensor has already been disposed for path "+t.path);t.tensor.dispose()}),this._params=void 0},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(e){return p(this,void 0,void 0,function(){return P(this,function(t){switch(t.label){case 0:return e instanceof Float32Array?(this.extractWeights(e),[2]):[4,this.loadFromUri(e)];case 1:return t.sent(),[2]}})})},t.prototype.loadFromUri=function(n){return p(this,void 0,void 0,function(){var e;return P(this,function(t){switch(t.label){case 0:if(n&&"string"!=typeof n)throw new Error(this._name+".loadFromUri - expected model uri");return[4,vp(n,this.getDefaultModelName())];case 1:return e=t.sent(),this.loadFromWeightMap(e),[2]}})})},t.prototype.loadFromDisk=function(h){return p(this,void 0,void 0,function(){var e,n,r,o,i,a,s,u,c,l;return P(this,function(t){switch(t.label){case 0:if(h&&"string"!=typeof h)throw new Error(this._name+".loadFromDisk - expected model file path");return e=zh.getEnv().readFile,n=rp(h,this.getDefaultModelName()),r=n.manifestUri,o=n.modelBaseUri,i=function(t){return Promise.all(t.map(function(t){return e(t).then(function(t){return t.buffer})}))},a=Ol.weightsLoaderFactory(i),c=(u=JSON).parse,[4,e(r)];case 1:return s=c.apply(u,[t.sent().toString()]),[4,a(s,o)];case 2:return l=t.sent(),this.loadFromWeightMap(l),[2]}})})},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(n){if(!this.params)throw new Error("traversePropertyPath - model has no loaded params");var t=n.split("/").reduce(function(t,e){if(!t.nextObj.hasOwnProperty(e))throw new Error("traversePropertyPath - object does not have property "+e+", for path "+n);return{obj:t.nextObj,objProp:e,nextObj:t.nextObj[e]}},{nextObj:this.params}),e=t.obj,r=t.objProp;if(!(e&&r&&e[r]instanceof dt))throw new Error("traversePropertyPath - 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Error("invalid config: "+t);if("boolean"!=typeof t.withSeparableConvs)throw new Error("config.withSeparableConvs has to be a boolean, have: "+t.withSeparableConvs);if(!Rp(t.iouThreshold)||t.iouThreshold<0||1<t.iouThreshold)throw new Error("config.iouThreshold has to be a number between [0, 1], have: "+t.iouThreshold);if(!Array.isArray(t.classes)||!t.classes.length||!t.classes.every(function(t){return"string"==typeof t}))throw new Error("config.classes has to be an array class names: string[], have: "+JSON.stringify(t.classes));if(!Array.isArray(t.anchors)||!t.anchors.length||!t.anchors.map(function(t){return t||{}}).every(function(t){return Rp(t.x)&&Rp(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(Rp)))throw new Error("config.meanRgb has to be an array of shape [number, number, number], have: "+JSON.stringify(t.meanRgb))}function kp(e){return ue(function(){var t=Du(e,Ve(.10000000149011612));return xu(Xu(Bu(e,t)),t)})}function Ip(e,n){return ue(function(){var t=Qi(e,[[0,0],[1,1],[1,1],[0,0]]);return t=Ss(t,n.conv.filters,[1,1],"valid"),t=Bu(t,n.bn.sub),t=Du(t,n.bn.truediv),kp(t=xu(t,n.conv.bias))})}function Tp(e,n){return ue(function(){var t=Qi(e,[[0,0],[1,1],[1,1],[0,0]]);return t=Is(t,n.depthwise_filter,n.pointwise_filter,[1,1],"valid"),kp(t=xu(t,n.bias))})}function Ap(s,u){var c=Yh(s,u);var t=Zh(s,u);return{extractConvParams:c,extractConvWithBatchNormParams:function(t,e,n){var r,o,i,a;return{conv:c(t,e,3,n+"/conv"),bn:(o=n+"/bn",i=He(s(r=e)),a=He(s(r)),u.push({paramPath:o+"/sub"},{paramPath:o+"/truediv"}),{sub:i,truediv:a})}},extractSeparableConvParams:t}}function Dp(t,e){var n=ep(t,e);function r(t){return{filters:n(t+"/filters",4),bias:n(t+"/bias",1)}}return{extractConvParams:r,extractConvWithBatchNormParams:function(t){var e;return{conv:r(t+"/conv"),bn:{sub:n((e=t+"/bn")+"/sub",1),truediv:n(e+"/truediv",1)}}},extractSeparableConvParams:tp(n)}}(Sp=_p||(_p={}))[Sp.XS=224]="XS",Sp[Sp.SM=320]="SM",Sp[Sp.MD=416]="MD",Sp[Sp.LG=608]="LG";var Mp=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||1<=this._scoreThreshold)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}(),Op=function(n){function r(t){var e=n.call(this,"TinyYolov2")||this;return Np(t),e._config=t,e}return a(r,n),Object.defineProperty(r.prototype,"config",{get:function(){return this._config},enumerable:!0,configurable:!0}),Object.defineProperty(r.prototype,"withClassScores",{get:function(){return this.config.withClassScores||1<this.config.classes.length},enumerable:!0,configurable:!0}),Object.defineProperty(r.prototype,"boxEncodingSize",{get:function(){return 5+(this.withClassScores?this.config.classes.length:0)},enumerable:!0,configurable:!0}),r.prototype.runTinyYolov2=function(t,e){var n=Ip(t,e.conv0);return n=Ip(n=Us(n,[2,2],[2,2],"same"),e.conv1),n=Ip(n=Us(n,[2,2],[2,2],"same"),e.conv2),n=Ip(n=Us(n,[2,2],[2,2],"same"),e.conv3),n=Ip(n=Us(n,[2,2],[2,2],"same"),e.conv4),n=Ip(n=Us(n,[2,2],[2,2],"same"),e.conv5),Kh(n=Ip(n=Ip(n=Us(n,[2,2],[1,1],"same"),e.conv6),e.conv7),e.conv8,"valid",!1)},r.prototype.runMobilenet=function(t,e){var n=this.config.isFirstLayerConv2d?kp(Kh(t,e.conv0,"valid",!1)):Tp(t,e.conv0);return n=Tp(n=Us(n,[2,2],[2,2],"same"),e.conv1),n=Tp(n=Us(n,[2,2],[2,2],"same"),e.conv2),n=Tp(n=Us(n,[2,2],[2,2],"same"),e.conv3),n=Tp(n=Us(n,[2,2],[2,2],"same"),e.conv4),n=Tp(n=Us(n,[2,2],[2,2],"same"),e.conv5),n=Us(n,[2,2],[1,1],"same"),n=e.conv6?Tp(n,e.conv6):n,Kh(n=e.conv7?Tp(n,e.conv7):n,e.conv8,"valid",!1)},r.prototype.forwardInput=function(e,n){var r=this,o=this.params;if(!o)throw new Error("TinyYolov2 - load model before inference");return ue(function(){var t=e.toBatchTensor(n,!1).toFloat();return t=(t=r.config.meanRgb?Ep(t,r.config.meanRgb):t).div(Ve(256)),r.config.withSeparableConvs?r.runMobilenet(t,o):r.runTinyYolov2(t,o)})},r.prototype.forward=function(n,r){return p(this,void 0,void 0,function(){var e;return P(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,yp(n)];case 1:return[4,e.apply(this,[t.sent(),r])];case 2:return[2,t.sent()]}})})},r.prototype.detect=function(v,m){return void 0===m&&(m={}),p(this,void 0,void 0,function(){var e,n,r,o,i,a,s,u,c,l,h,p,f,d=this;return P(this,function(t){switch(t.label){case 0:return e=new Mp(m),n=e.inputSize,r=e.scoreThreshold,[4,yp(v)];case 1:return o=t.sent(),[4,this.forwardInput(o,n)];case 2:return i=t.sent(),a=ue(function(){return ha(i)[0].expandDims()}),s={width:o.getInputWidth(0),height:o.getInputHeight(0)},[4,this.extractBoxes(a,o.getReshapedInputDimensions(0),r)];case 3:return u=t.sent(),i.dispose(),a.dispose(),c=u.map(function(t){return t.box}),l=u.map(function(t){return t.score}),h=u.map(function(t){return t.classScore}),p=u.map(function(t){return d.config.classes[t.label]}),f=bp(c.map(function(t){return t.rescale(n)}),l,this.config.iouThreshold,!0),[2,f.map(function(t){return new kh(l[t],h[t],p[t],c[t],s)})]}})})},r.prototype.getDefaultModelName=function(){return""},r.prototype.extractParamsFromWeigthMap=function(t){return function(t,e){var n,r=[],o=Dp(t,r),i=o.extractConvParams,a=o.extractConvWithBatchNormParams,s=o.extractSeparableConvParams;if(e.withSeparableConvs){var u=e.filterSizes&&e.filterSizes.length||9;n={conv0:e.isFirstLayerConv2d?i("conv0"):s("conv0"),conv1:s("conv1"),conv2:s("conv2"),conv3:s("conv3"),conv4:s("conv4"),conv5:s("conv5"),conv6:7<u?s("conv6"):void 0,conv7:8<u?s("conv7"):void 0,conv8:i("conv8")}}else n={conv0:a("conv0"),conv1:a("conv1"),conv2:a("conv2"),conv3:a("conv3"),conv4:a("conv4"),conv5:a("conv5"),conv6:a("conv6"),conv7:a("conv7"),conv8:i("conv8")};return Xh(t,r),{params:n,paramMappings:r}}(t,this.config)},r.prototype.extractParams=function(t){var e=this.config.filterSizes||r.DEFAULT_FILTER_SIZES,n=e?e.length:void 0;if(7!==n&&8!==n&&9!==n)throw new Error("TinyYolov2 - expected 7 | 8 | 9 convolutional filters, but found "+n+" filterSizes in config");return function(t,e,n,r){var o,i=np(t),a=i.extractWeights,s=i.getRemainingWeights,u=[],c=Ap(a,u),l=c.extractConvParams,h=c.extractConvWithBatchNormParams,p=c.extractSeparableConvParams;if(e.withSeparableConvs){var f=r[0],d=r[1],v=r[2],m=r[3],g=r[4],y=r[5],x=r[6],w=r[7],b=r[8];o={conv0:e.isFirstLayerConv2d?l(f,d,3,"conv0"):p(f,d,"conv0"),conv1:p(d,v,"conv1"),conv2:p(v,m,"conv2"),conv3:p(m,g,"conv3"),conv4:p(g,y,"conv4"),conv5:p(y,x,"conv5"),conv6:w?p(x,w,"conv6"):void 0,conv7:b?p(w,b,"conv7"):void 0,conv8:l(b||w||x,5*n,1,"conv8")}}else f=r[0],d=r[1],v=r[2],m=r[3],g=r[4],y=r[5],x=r[6],w=r[7],b=r[8],o={conv0:h(f,d,"conv0"),conv1:h(d,v,"conv1"),conv2:h(v,m,"conv2"),conv3:h(m,g,"conv3"),conv4:h(g,y,"conv4"),conv5:h(y,x,"conv5"),conv6:h(x,w,"conv6"),conv7:h(w,b,"conv7"),conv8:l(b,5*n,1,"conv8")};if(0!==s().length)throw new Error("weights remaing after extract: "+s().length);return{params:o,paramMappings:u}}(t,this.config,this.boxEncodingSize,e)},r.prototype.extractBoxes=function(A,D,M){return p(this,void 0,void 0,function(){var e,n,r,o,i,a,s,u,c,l,h,p,f,d,v,m,g,y,x,w,b,E,C,_,S,R,N,k,I,T=this;return P(this,function(t){switch(t.label){case 0:return e=D.width,n=D.height,r=Math.max(e,n),o=r/e,i=r/n,a=A.shape[1],s=this.config.anchors.length,u=ue(function(){var t=A.reshape([a,a,s,T.boxEncodingSize]);return[t.slice([0,0,0,0],[a,a,s,4]),t.slice([0,0,0,4],[a,a,s,1]),T.withClassScores?Le(t.slice([0,0,0,5],[a,a,s,T.config.classes.length]),3):Ve(0)]}),c=u[0],l=u[1],h=u[2],p=[],[4,l.array()];case 1:return f=t.sent(),[4,c.array()];case 2:d=t.sent(),v=0,t.label=3;case 3:if(!(v<a))return[3,12];m=0,t.label=4;case 4:if(!(m<a))return[3,11];g=0,t.label=5;case 5:return g<s?(y=Cp(f[v][m][g][0]),!M||M<y?(x=(m+Cp(d[v][m][g][0]))/a*o,w=(v+Cp(d[v][m][g][1]))/a*i,b=Math.exp(d[v][m][g][2])*this.config.anchors[g].x/a*o,E=Math.exp(d[v][m][g][3])*this.config.anchors[g].y/a*i,C=x-b/2,_=w-E/2,S={row:v,col:m,anchor:g},this.withClassScores?[4,this.extractPredictedClass(h,S)]:[3,7]):[3,9]):[3,10];case 6:return I=t.sent(),[3,8];case 7:I={classScore:1,label:0},t.label=8;case 8:N=(R=I).classScore,k=R.label,p.push(O({box:new Rh(C,_,C+b,_+E),score:y,classScore:y*N,label:k},S)),t.label=9;case 9:return g++,[3,5];case 10:return m++,[3,4];case 11:return v++,[3,3];case 12:return c.dispose(),l.dispose(),h.dispose(),[2,p]}})})},r.prototype.extractPredictedClass=function(e,a){return p(this,void 0,void 0,function(){var n,r,o,i;return P(this,function(t){switch(t.label){case 0:return n=a.row,r=a.col,o=a.anchor,[4,e.array()];case 1:return i=t.sent(),[2,Array(this.config.classes.length).fill(0).map(function(t,e){return i[n][r][o][e]}).map(function(t,e){return{classScore:t,label:e}}).reduce(function(t,e){return t.classScore>e.classScore?t:e})]}})})},r.DEFAULT_FILTER_SIZES=[3,16,32,64,128,256,512,1024,1024],r}(xp),Pp=Object.freeze({convLayer:Kh,disposeUnusedWeightTensors:Xh,extractConvParamsFactory:Yh,extractFCParamsFactory:Qh,extractSeparableConvParamsFactory:Zh,loadSeparableConvParamsFactory:tp,extractWeightEntryFactory:ep,extractWeightsFactory:np,getModelUris:rp,SeparableConvParams:Jh,TinyYolov2:Op,get TinyYolov2SizeType(){return _p},TinyYolov2Options:Mp,validateConfig:Np});function Fp(i,a,t){if(void 0===t&&(t=!1),i.beginPath(),a.slice(1).forEach(function(t,e){var n=t.x,r=t.y,o=a[e];i.moveTo(o.x,o.y),i.lineTo(n,r)}),t){var e=a[a.length-1],n=a[0];if(!e||!n)return;i.moveTo(e.x,e.y),i.lineTo(n.x,n.y)}i.stroke()}var Lp=function(r){function o(t,e,n){return r.call(this,t,t,"",e,n)||this}return a(o,r),o.prototype.forSize=function(t,e){var n=r.prototype.forSize.call(this,t,e);return new o(n.score,n.relativeBox,n.imageDims)},o}(kh);function Bp(t){return t.detection instanceof Lp}function Wp(t,e){var n={detection:e};return Object.assign({},t,n)}function zp(e,n,r){return ue(function(){var t=Is(e,n.depthwise_filter,n.pointwise_filter,r,"same");return t=xu(t,n.bias)})}function Up(r,o,i){return void 0===i&&(i=!1),ue(function(){var t=Xu(i?xu(Ss(r,o.conv0.filters,[2,2],"same"),o.conv0.bias):zp(r,o.conv0,[2,2])),e=zp(t,o.conv1,[1,1]),n=zp(Xu(xu(t,e)),o.conv2,[1,1]);return Xu(xu(t,xu(e,n)))})}function Gp(o,i,a,s){return void 0===a&&(a=!1),void 0===s&&(s=!0),ue(function(){var t=Xu(a?xu(Ss(o,i.conv0.filters,s?[2,2]:[1,1],"same"),i.conv0.bias):zp(o,i.conv0,s?[2,2]:[1,1])),e=zp(t,i.conv1,[1,1]),n=zp(Xu(xu(t,e)),i.conv2,[1,1]),r=zp(Xu(xu(t,xu(e,n))),i.conv3,[1,1]);return Xu(xu(t,xu(e,xu(n,r))))})}function Vp(t,e){var o=Yh(t,e),i=Zh(t,e);function a(t,e,n,r){return void 0===r&&(r=!1),{conv0:r?o(t,e,3,n+"/conv0"):i(t,e,n+"/conv0"),conv1:i(e,e,n+"/conv1"),conv2:i(e,e,n+"/conv2")}}return{extractDenseBlock3Params:a,extractDenseBlock4Params:function(t,e,n,r){void 0===r&&(r=!1);var o=a(t,e,n,r);return{conv0:o.conv0,conv1:o.conv1,conv2:o.conv2,conv3:i(e,e,n+"/conv3")}}}}function Hp(e){return function(t){return{filters:e(t+"/filters",4),bias:e(t+"/bias",1)}}}function qp(t,e){var n=ep(t,e),r=Hp(n),o=tp(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 jp=function(t){function e(){return t.call(this,"FaceFeatureExtractor")||this}return a(e,t),e.prototype.forwardInput=function(e){var n=this.params;if(!n)throw new Error("FaceFeatureExtractor - load model before inference");return ue(function(){var t=Gp(Ep(e.toBatchTensor(112,!0),[122.782,117.001,104.298]).div(Ve(255)),n.dense0,!0);return t=Gp(t=Gp(t=Gp(t,n.dense1),n.dense2),n.dense3),t=Gs(t,[7,7],[2,2],"valid")})},e.prototype.forward=function(n){return p(this,void 0,void 0,function(){var e;return P(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,yp(n)];case 1:return[2,e.apply(this,[t.sent()])]}})})},e.prototype.getDefaultModelName=function(){return"face_feature_extractor_model"},e.prototype.extractParamsFromWeigthMap=function(t){return r=qp(e=t,n=[]).extractDenseBlock4Params,o={dense0:r("dense0",!0),dense1:r("dense1"),dense2:r("dense2"),dense3:r("dense3")},Xh(e,n),{params:o,paramMappings:n};var e,n,r,o},e.prototype.extractParams=function(t){return function(t){var e=[],n=np(t),r=n.extractWeights,o=n.getRemainingWeights,i=Vp(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}(xp);function $p(t,e){return ue(function(){return xu(As(t,e.weights),e.bias)})}function Kp(e){var n={},r={};return Object.keys(e).forEach(function(t){(t.startsWith("fc")?r:n)[t]=e[t]}),{featureExtractorMap:n,classifierMap:r}}var Xp=function(r){function t(t,e){var n=r.call(this,t)||this;return n._faceFeatureExtractor=e,n}return a(t,r),Object.defineProperty(t.prototype,"faceFeatureExtractor",{get:function(){return this._faceFeatureExtractor},enumerable:!0,configurable:!0}),t.prototype.runNet=function(e){var n=this,r=this.params;if(!r)throw new Error(this._name+" - load model before inference");return ue(function(){var t=e instanceof gp?n.faceFeatureExtractor.forwardInput(e):e;return $p(t.as2D(t.shape[0],-1),r.fc)})},t.prototype.dispose=function(t){void 0===t&&(t=!0),this.faceFeatureExtractor.dispose(t),r.prototype.dispose.call(this,t)},t.prototype.loadClassifierParams=function(t){var e=this.extractClassifierParams(t),n=e.params,r=e.paramMappings;this._params=n,this._paramMappings=r},t.prototype.extractClassifierParams=function(t){return function(t,e,n){var r=[],o=np(t),i=o.extractWeights,a=o.getRemainingWeights,s=Qh(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())},t.prototype.extractParamsFromWeigthMap=function(t){var e,n,r,o,i,a=Kp(t),s=a.featureExtractorMap,u=a.classifierMap;return this.faceFeatureExtractor.loadFromWeightMap(s),o=ep(e=u,r=[]),i={fc:(n="fc",{weights:o(n+"/weights",2),bias:o(n+"/bias",1)})},Xh(e,r),{params:i,paramMappings:r}},t.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)},t}(xp),Yp=["neutral","happy","sad","angry","fearful","disgusted","surprised"],Qp=function(){function t(n){var r=this;if(7!==n.length)throw new Error("FaceExpressions.constructor - expected 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0,function(){var e;return P(this,function(t){switch(t.label){case 0:return[4,n.data()];case 1:return e=t.sent(),n.dispose(),[2,e]}})})}))];case 3:return r=t.sent(),n.dispose(),o=r.map(function(t){return new Qp(t)}),[2,e.isBatchInput?o:o[0]]}})})},t.prototype.getDefaultModelName=function(){return"face_expression_model"},t.prototype.getClassifierChannelsIn=function(){return 256},t.prototype.getClassifierChannelsOut=function(){return 7},t}(Xp);function Zp(t){return t.expressions instanceof Qp}function tf(t,e){var n={expressions:e};return Object.assign({},t,n)}var ef=function(){function t(t,e,n){void 0===n&&(n=new lh(0,0));var r=e.width,o=e.height;this._imgDims=new ch(r,o),this._shift=n,this._positions=t.map(function(t){return t.mul(new lh(r,o)).add(n)})}return Object.defineProperty(t.prototype,"shift",{get:function(){return new lh(this._shift.x,this._shift.y)},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"imageWidth",{get:function(){return this._imgDims.width},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"imageHeight",{get:function(){return this._imgDims.height},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"positions",{get:function(){return this._positions},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"relativePositions",{get:function(){var e=this;return this._positions.map(function(t){return t.sub(e._shift).div(new lh(e.imageWidth,e.imageHeight))})},enumerable:!0,configurable:!0}),t.prototype.forSize=function(t,e){return new this.constructor(this.relativePositions,{width:t,height:e})},t.prototype.shiftBy=function(t,e){return new this.constructor(this.relativePositions,this._imgDims,new lh(t,e))},t.prototype.shiftByPoint=function(t){return this.shiftBy(t.x,t.y)},t.prototype.align=function(t,e){if(void 0===e&&(e={}),t){var n=t instanceof Lp?t.box.floor():new Sh(t);return this.shiftBy(n.x,n.y).align(null,e)}var 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class")},t}(),nf=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return a(e,t),e.prototype.getJawOutline=function(){return this.positions.slice(0,17)},e.prototype.getLeftEyeBrow=function(){return this.positions.slice(17,22)},e.prototype.getRightEyeBrow=function(){return this.positions.slice(22,27)},e.prototype.getNose=function(){return this.positions.slice(27,36)},e.prototype.getLeftEye=function(){return this.positions.slice(36,42)},e.prototype.getRightEye=function(){return this.positions.slice(42,48)},e.prototype.getMouth=function(){return this.positions.slice(48,68)},e.prototype.getRefPointsForAlignment=function(){return[this.getLeftEye(),this.getRightEye(),this.getMouth()].map(wh)},e}(ef);function rf(t){return Bp(t)&&t.landmarks instanceof ef&&t.unshiftedLandmarks instanceof ef&&t.alignedRect instanceof Lp}function of(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 Lp(t.detection.score,o.rescale(i.reverse()),i)};return Object.assign({},t,a)}var af=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)"},sf=function(){function t(t,e){void 0===e&&(e={}),this.faceLandmarks=t,this.options=new af(e)}return t.prototype.draw=function(t){var e=Gh(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 nf&&(e.strokeStyle=a,e.lineWidth=i,Fp(e,this.faceLandmarks.getJawOutline()),Fp(e,this.faceLandmarks.getLeftEyeBrow()),Fp(e,this.faceLandmarks.getRightEyeBrow()),Fp(e,this.faceLandmarks.getNose()),Fp(e,this.faceLandmarks.getLeftEye(),!0),Fp(e,this.faceLandmarks.getRightEye(),!0),Fp(e,this.faceLandmarks.getMouth(),!0)),o){e.strokeStyle=u,e.fillStyle=u;this.faceLandmarks.positions.forEach(function(t){e.beginPath(),e.arc(t.x,t.y,s,0,2*Math.PI),e.fill()})}},t}();var uf=Object.freeze({drawContour:Fp,drawDetections:function(o,t){(Array.isArray(t)?t:[t]).forEach(function(t){var e=t instanceof Lp?t.score:Bp(t)?t.detection.score:void 0,n=t instanceof Lp?t.box:Bp(t)?t.detection.box:new Sh(t),r=e?""+gh(e):void 0;new jh(n,{label:r}).draw(o)})},drawFaceExpressions:function(o,t,i,a){void 0===i&&(i=.1),(Array.isArray(t)?t:[t]).forEach(function(t){var e=t instanceof Qp?t:Zp(t)?t.expressions:void 0;if(!e)throw new Error("drawFaceExpressions - expected faceExpressions to be FaceExpressions | 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n,r,o,i,a=[],s=np(t),u=s.extractWeights,c=s.getRemainingWeights,l=(o=Yh(n=u,r=a),i=Zh(n,r),{extractConvParams:o,extractSeparableConvParams:i,extractReductionBlockParams:function(t,e,n){return{separable_conv0:i(t,e,n+"/separable_conv0"),separable_conv1:i(e,e,n+"/separable_conv1"),expansion_conv:o(t,e,1,n+"/expansion_conv")}},extractMainBlockParams:function(t,e){return{separable_conv0:i(t,t,e+"/separable_conv0"),separable_conv1:i(t,t,e+"/separable_conv1"),separable_conv2:i(t,t,e+"/separable_conv2")}}}),h=l.extractSeparableConvParams,p=l.extractReductionBlockParams,f=l.extractMainBlockParams,d={conv_in:(0,l.extractConvParams)(3,32,3,"entry_flow/conv_in"),reduction_block_0:p(32,64,"entry_flow/reduction_block_0"),reduction_block_1:p(64,128,"entry_flow/reduction_block_1")},v={};bh(e,0,1).forEach(function(t){v["main_block_"+t]=f(128,"middle_flow/main_block_"+t)});var m={reduction_block:p(128,256,"exit_flow/reduction_block"),separable_conv:h(256,512,"exit_flow/separable_conv")};if(0!==c().length)throw new Error("weights remaing after extract: "+c().length);return{paramMappings:a,params:{entry_flow:d,middle_flow:v,exit_flow:m}}}function lf(t,e){var n,r,o,i=[],a=(n=ep(t,i),r=Hp(n),o=tp(n),{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")}}}),s=a.extractSeparableConvParams,u=a.extractReductionBlockParams,c=a.extractMainBlockParams,l={conv_in:(0,a.extractConvParams)("entry_flow/conv_in"),reduction_block_0:u("entry_flow/reduction_block_0"),reduction_block_1:u("entry_flow/reduction_block_1")},h={};bh(e,0,1).forEach(function(t){h["main_block_"+t]=c("middle_flow/main_block_"+t)});var p={reduction_block:u("exit_flow/reduction_block"),separable_conv:s("exit_flow/separable_conv")};return Xh(t,i),{params:{entry_flow:l,middle_flow:h,exit_flow:p},paramMappings:i}}function hf(t,e,n){return xu(Ss(t,e.filters,n,"same"),e.bias)}function pf(t,e,n){void 0===n&&(n=!0);var r=n?Xu(t):t;return r=zp(r,e.separable_conv0,[1,1]),r=zp(Xu(r),e.separable_conv1,[1,1]),r=Us(r,[3,3],[2,2],"same"),r=xu(r,hf(t,e.expansion_conv,[2,2]))}var ff,df=function(n){function t(t){var e=n.call(this,"TinyXception")||this;return e._numMainBlocks=t,e}return a(t,n),t.prototype.forwardInput=function(e){var n=this,i=this.params;if(!i)throw new Error("TinyXception - load model before inference");return ue(function(){var t=Ep(e.toBatchTensor(112,!0),[122.782,117.001,104.298]).div(Ve(256)),o=Xu(hf(t,i.entry_flow.conv_in,[2,2]));return o=pf(o=pf(o,i.entry_flow.reduction_block_0,!1),i.entry_flow.reduction_block_1),bh(n._numMainBlocks,0,1).forEach(function(t){var e,n,r;e=o,n=i.middle_flow["main_block_"+t],r=zp(Xu(e),n.separable_conv0,[1,1]),r=zp(Xu(r),n.separable_conv1,[1,1]),r=zp(Xu(r),n.separable_conv2,[1,1]),o=r=xu(r,e)}),o=pf(o,i.exit_flow.reduction_block),o=Xu(zp(o,i.exit_flow.separable_conv,[1,1]))})},t.prototype.forward=function(n){return p(this,void 0,void 0,function(){var e;return P(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,yp(n)];case 1:return[2,e.apply(this,[t.sent()])]}})})},t.prototype.getDefaultModelName=function(){return"tiny_xception_model"},t.prototype.extractParamsFromWeigthMap=function(t){return lf(t,this._numMainBlocks)},t.prototype.extractParams=function(t){return cf(t,this._numMainBlocks)},t}(xp);(ff=c.Gender||(c.Gender={})).FEMALE="female",ff.MALE="male";var vf=function(n){function t(t){void 0===t&&(t=new df(2));var e=n.call(this,"AgeGenderNet")||this;return e._faceFeatureExtractor=t,e}return a(t,n),Object.defineProperty(t.prototype,"faceFeatureExtractor",{get:function(){return this._faceFeatureExtractor},enumerable:!0,configurable:!0}),t.prototype.runNet=function(n){var r=this,o=this.params;if(!o)throw new Error(this._name+" - load model before inference");return ue(function(){var t=n instanceof gp?r.faceFeatureExtractor.forwardInput(n):n,e=Gs(t,[7,7],[2,2],"valid").as2D(t.shape[0],-1);return{age:$p(e,o.fc.age).as1D(),gender:$p(e,o.fc.gender)}})},t.prototype.forwardInput=function(r){var o=this;return ue(function(){var t=o.runNet(r),e=t.age,n=t.gender;return{age:e,gender:Le(n)}})},t.prototype.forward=function(n){return p(this,void 0,void 0,function(){var e;return P(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,yp(n)];case 1:return[2,e.apply(this,[t.sent()])]}})})},t.prototype.predictAgeAndGender=function(s){return p(this,void 0,void 0,function(){var e,n,r,o,i,a,u=this;return P(this,function(t){switch(t.label){case 0:return[4,yp(s)];case 1:return e=t.sent(),[4,this.forwardInput(e)];case 2:return n=t.sent(),r=ha(n.age),o=ha(n.gender),i=r.map(function(t,e){return{ageTensor:t,genderTensor:o[e]}}),[4,Promise.all(i.map(function(t){var a=t.ageTensor,s=t.genderTensor;return p(u,void 0,void 0,function(){var e,n,r,o,i;return P(this,function(t){switch(t.label){case 0:return[4,a.data()];case 1:return e=t.sent()[0],[4,s.data()];case 2:return n=t.sent()[0],o=(r=.5<n)?c.Gender.MALE:c.Gender.FEMALE,i=r?n:1-n,a.dispose(),s.dispose(),[2,{age:e,gender:o,genderProbability:i}]}})})}))];case 3:return a=t.sent(),n.age.dispose(),n.gender.dispose(),[2,e.isBatchInput?a:a[0]]}})})},t.prototype.getDefaultModelName=function(){return"age_gender_model"},t.prototype.dispose=function(t){void 0===t&&(t=!0),this.faceFeatureExtractor.dispose(t),n.prototype.dispose.call(this,t)},t.prototype.loadClassifierParams=function(t){var e=this.extractClassifierParams(t),n=e.params,r=e.paramMappings;this._params=n,this._paramMappings=r},t.prototype.extractClassifierParams=function(t){return function(t){var e=[],n=np(t),r=n.extractWeights,o=n.getRemainingWeights,i=Qh(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)},t.prototype.extractParamsFromWeigthMap=function(t){var e=Kp(t),n=e.featureExtractorMap,r=e.classifierMap;return this.faceFeatureExtractor.loadFromWeightMap(n),function(t){var e=[],n=ep(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 Xh(t,e),{params:o,paramMappings:e}}(r)},t.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)},t}(xp),mf=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return a(e,t),e.prototype.getRefPointsForAlignment=function(){var t=this.positions;return[t[0],t[1],wh([t[3],t[4]])]},e}(ef),gf=function(){function t(t,e){this._label=t,this._distance=e}return Object.defineProperty(t.prototype,"label",{get:function(){return this._label},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"distance",{get:function(){return this._distance},enumerable:!0,configurable:!0}),t.prototype.toString=function(t){return void 0===t&&(t=!0),this.label+(t?" 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3:i=t.sent(),t.label=4;case 4:n=i,t.label=5;case 5:return a=Gh(n),[2,u.map(function(t){return t instanceof Lp?t.forSize(n.width,n.height).box.floor():t}).map(function(t){return t.clipAtImageBorders(n.width,n.height)}).map(function(t){var e=t.x,n=t.y,r=t.width,o=t.height,i=up({width:r,height:o});return Gh(i).putImageData(a.getImageData(e,n,r,o),0,0),i})]}})})}function wf(u,e){return p(this,void 0,void 0,function(){return P(this,function(t){if(!fh(u)&&!dh(u))throw new Error("extractFaceTensors - expected image tensor to be 3D or 4D");if(dh(u)&&1<u.shape[0])throw new Error("extractFaceTensors - batchSize > 1 not supported");return[2,ue(function(){var t=u.shape.slice(dh(u)?1:0),i=t[0],a=t[1],s=t[2];return e.map(function(t){return t instanceof Lp?t.forSize(a,i).box:t}).map(function(t){return t.clipAtImageBorders(a,i)}).map(function(t){var e=t.x,n=t.y,r=t.width,o=t.height;return $s(u.as3D(i,a,s),[n,e,0],[o,r,s])})})]})})}var bf=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return a(e,t),e.prototype.postProcess=function(t,o,e){var i=e.map(function(t){var e=t.width,n=t.height,r=o/Math.max(n,e);return{width:e*r,height:n*r}}),a=i.length;return ue(function(){var n=function(t,e){return ua([Je([68],t),Je([68],e)],1).as2D(1,136).as1D()},r=function(t,e){var n=i[t],r=n.width,o=n.height;return e(r,o)?Math.abs(r-o)/2:0};return t.mul(Je([a,136],o)).sub(ua(Array.from(Array(a),function(t,e){return n(r(e,function(t,e){return t<e}),r(e,function(t,e){return e<t}))}))).div(ua(Array.from(Array(a),function(t,e){return n(i[e].width,i[e].height)})))})},e.prototype.forwardInput=function(e){var n=this;return ue(function(){var t=n.runNet(e);return n.postProcess(t,e.inputSize,e.inputDimensions.map(function(t){return{height:t[0],width:t[1]}}))})},e.prototype.forward=function(n){return p(this,void 0,void 0,function(){var e;return P(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,yp(n)];case 1:return[2,e.apply(this,[t.sent()])]}})})},e.prototype.detectLandmarks=function(o){return p(this,void 0,void 0,function(){var u,e,n,r=this;return P(this,function(t){switch(t.label){case 0:return[4,yp(o)];case 1:return u=t.sent(),e=ue(function(){return ha(r.forwardInput(u))}),[4,Promise.all(e.map(function(a,s){return p(r,void 0,void 0,function(){var e,n,r,o,i;return P(this,function(t){switch(t.label){case 0:return r=(n=Array).from,[4,a.data()];case 1:return e=r.apply(n,[t.sent()]),o=e.filter(function(t,e){return mh(e)}),i=e.filter(function(t,e){return!mh(e)}),[2,new nf(Array(68).fill(0).map(function(t,e){return new lh(o[e],i[e])}),{height:u.getInputHeight(s),width:u.getInputWidth(s)})]}})})}))];case 2:return n=t.sent(),e.forEach(function(t){return t.dispose()}),[2,u.isBatchInput?n:n[0]]}})})},e.prototype.getClassifierChannelsOut=function(){return 136},e}(Xp),Ef=function(e){function t(t){return void 0===t&&(t=new jp),e.call(this,"FaceLandmark68Net",t)||this}return a(t,e),t.prototype.getDefaultModelName=function(){return"face_landmark_68_model"},t.prototype.getClassifierChannelsIn=function(){return 256},t}(bf);var Cf=function(t){function e(){return t.call(this,"TinyFaceFeatureExtractor")||this}return a(e,t),e.prototype.forwardInput=function(e){var n=this.params;if(!n)throw new Error("TinyFaceFeatureExtractor - load model before inference");return ue(function(){var t=Up(Ep(e.toBatchTensor(112,!0),[122.782,117.001,104.298]).div(Ve(255)),n.dense0,!0);return t=Up(t=Up(t,n.dense1),n.dense2),t=Gs(t,[14,14],[2,2],"valid")})},e.prototype.forward=function(n){return p(this,void 0,void 0,function(){var e;return P(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,yp(n)];case 1:return[2,e.apply(this,[t.sent()])]}})})},e.prototype.getDefaultModelName=function(){return"face_feature_extractor_tiny_model"},e.prototype.extractParamsFromWeigthMap=function(t){return r=qp(e=t,n=[]).extractDenseBlock3Params,o={dense0:r("dense0",!0),dense1:r("dense1"),dense2:r("dense2")},Xh(e,n),{params:o,paramMappings:n};var e,n,r,o},e.prototype.extractParams=function(t){return function(t){var e=[],n=np(t),r=n.extractWeights,o=n.getRemainingWeights,i=Vp(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}(xp),_f=function(e){function t(t){return void 0===t&&(t=new Cf),e.call(this,"FaceLandmark68TinyNet",t)||this}return a(t,e),t.prototype.getDefaultModelName=function(){return"face_landmark_68_tiny_model"},t.prototype.getClassifierChannelsIn=function(){return 128},t}(bf),Sf=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return a(e,t),e}(Ef);function Rf(t,e,n,r,o){void 0===o&&(o="same");var i,a,s=e.conv,u=s.filters,c=s.bias,l=Ss(t,u,n,o);return l=xu(l,c),i=l,a=e.scale,l=xu(Du(i,a.weights),a.biases),r?Xu(l):l}function Nf(t,e){return Rf(t,e,[1,1],!1)}function kf(t,e){return Rf(t,e,[2,2],!0,"valid")}function If(u,c){function l(t,e,n,r){var o=function(t,e,n){var r=u(t),o=r.length/(e*n*n);if(vh(o))throw new Error("depth has to be an integer: "+o+", weights.length: "+r.length+", numFilters: "+e+", filterSize: "+n);return ue(function(){return Qu($e(r,[e,o,n,n]),[2,3,1,0])})}(t,e,n),i=He(u(e));return c.push({paramPath:r+"/filters"},{paramPath:r+"/bias"}),{filters:o,bias:i}}function i(t,e,n,r){var o,i,a,s;return{conv:l(t,e,n,r+"/conv"),scale:(i=r+"/scale",a=He(u(o=e)),s=He(u(o)),c.push({paramPath:i+"/weights"},{paramPath:i+"/biases"}),{weights:a,biases:s})}}return{extractConvLayerParams:i,extractResidualLayerParams:function(t,e,n,r,o){return void 0===o&&(o=!1),{conv1:i((o?.5:1)*t,e,n,r+"/conv1"),conv2:i(t,e,n,r+"/conv2")}}}}function Tf(t,e){var n=ep(t,e);function r(t){var e;return{conv:{filters:n(t+"/conv/filters",4),bias:n(t+"/conv/bias",1)},scale:{weights:n((e=t)+"/scale/weights",1),biases:n(e+"/scale/biases",1)}}}return{extractConvLayerParams:r,extractResidualLayerParams:function(t){return{conv1:r(t+"/conv1"),conv2:r(t+"/conv2")}}}}function Af(t,e){var n,r,o=(n=t,r=e.conv1,Rf(n,r,[1,1],!0));return o=Nf(o,e.conv2),o=xu(o,t),o=Xu(o)}function Df(t,e){var n=kf(t,e.conv1);n=Nf(n,e.conv2);var r=Gs(t,2,2,"valid"),o=Qe(r.shape),i=r.shape[3]!==n.shape[3];if(r.shape[1]!==n.shape[1]||r.shape[2]!==n.shape[2]){var a=n.shape.slice();a[1]=1;var s=Qe(a),u=(n=_i([n,s],1)).shape.slice();u[2]=1;var c=Qe(u);n=_i([n,c],2)}return r=i?_i([r,o],3):r,n=xu(r,n),n=Xu(n)}var Mf=function(t){function e(){return t.call(this,"FaceRecognitionNet")||this}return a(e,t),e.prototype.forwardInput=function(n){var r=this.params;if(!r)throw new Error("FaceRecognitionNet - load model before inference");return ue(function(){var t=kf(Ep(n.toBatchTensor(150,!0).toFloat(),[122.782,117.001,104.298]).div(Ve(256)),r.conv32_down),e=(t=Df(t=Af(t=Af(t=Df(t=Af(t=Af(t=Df(t=Af(t=Af(t=Af(t=Df(t=Af(t=Af(t=Af(t=Us(t,3,2,"valid"),r.conv32_1),r.conv32_2),r.conv32_3),r.conv64_down),r.conv64_1),r.conv64_2),r.conv64_3),r.conv128_down),r.conv128_1),r.conv128_2),r.conv256_down),r.conv256_1),r.conv256_2),r.conv256_down_out)).mean([1,2]);return As(e,r.fc)})},e.prototype.forward=function(n){return p(this,void 0,void 0,function(){var e;return P(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,yp(n)];case 1:return[2,e.apply(this,[t.sent()])]}})})},e.prototype.computeFaceDescriptor=function(i){return p(this,void 0,void 0,function(){var e,n,r,o=this;return P(this,function(t){switch(t.label){case 0:return[4,yp(i)];case 1:return e=t.sent(),n=ue(function(){return ha(o.forwardInput(e))}),[4,Promise.all(n.map(function(t){return t.data()}))];case 2:return r=t.sent(),n.forEach(function(t){return t.dispose()}),[2,e.isBatchInput?r:r[0]]}})})},e.prototype.getDefaultModelName=function(){return"face_recognition_model"},e.prototype.extractParamsFromWeigthMap=function(t){return function(t){var e=[],n=Tf(t,e),r=n.extractConvLayerParams,o=n.extractResidualLayerParams,i=r("conv32_down"),a=o("conv32_1"),s=o("conv32_2"),u=o("conv32_3"),c=o("conv64_down"),l=o("conv64_1"),h=o("conv64_2"),p=o("conv64_3"),f=o("conv128_down"),d=o("conv128_1"),v=o("conv128_2"),m=o("conv256_down"),g=o("conv256_1"),y=o("conv256_2"),x=o("conv256_down_out"),w=t.fc;if(e.push({originalPath:"fc",paramPath:"fc"}),!ph(w))throw new Error("expected weightMap[fc] to be a Tensor2D, instead have "+w);var b={conv32_down:i,conv32_1:a,conv32_2:s,conv32_3:u,conv64_down:c,conv64_1:l,conv64_2:h,conv64_3:p,conv128_down:f,conv128_1:d,conv128_2:v,conv256_down:m,conv256_1:g,conv256_2:y,conv256_down_out:x,fc:w};return Xh(t,e),{params:b,paramMappings:e}}(t)},e.prototype.extractParams=function(t){return function(t){var e=np(t),n=e.extractWeights,r=e.getRemainingWeights,o=[],i=If(n,o),a=i.extractConvLayerParams,s=i.extractResidualLayerParams,u=a(4704,32,7,"conv32_down"),c=s(9216,32,3,"conv32_1"),l=s(9216,32,3,"conv32_2"),h=s(9216,32,3,"conv32_3"),p=s(36864,64,3,"conv64_down",!0),f=s(36864,64,3,"conv64_1"),d=s(36864,64,3,"conv64_2"),v=s(36864,64,3,"conv64_3"),m=s(147456,128,3,"conv128_down",!0),g=s(147456,128,3,"conv128_1"),y=s(147456,128,3,"conv128_2"),x=s(589824,256,3,"conv256_down",!0),w=s(589824,256,3,"conv256_1"),b=s(589824,256,3,"conv256_2"),E=s(589824,256,3,"conv256_down_out"),C=ue(function(){return Qu(qe(n(32768),[128,256]),[1,0])});if(o.push({paramPath:"fc"}),0!==r().length)throw new Error("weights remaing after extract: "+r().length);return{params:{conv32_down:u,conv32_1:c,conv32_2:l,conv32_3:h,conv64_down:p,conv64_1:f,conv64_2:d,conv64_3:v,conv128_down:m,conv128_1:g,conv128_2:y,conv256_down:x,conv256_1:w,conv256_2:b,conv256_down_out:E,fc:C},paramMappings:o}}(t)},e}(xp);function Of(t,e){var n={descriptor:e};return Object.assign({},t,n)}var Pf=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||1<=this._scaleFactor)throw new Error(this._name+" - expected scaleFactor to be a number between 0 and 1");if("number"!=typeof this._maxNumScales||this._maxNumScales<0)throw new Error(this._name+" - expected maxNumScales to be a number > 0");if(!Array.isArray(this._scoreThresholds)||3!==this._scoreThresholds.length||this._scoreThresholds.some(function(t){return"number"!=typeof t}))throw new Error(this._name+" - expected scoreThresholds to be an array of numbers of length 3");if(this._scaleSteps&&(!Array.isArray(this._scaleSteps)||this._scaleSteps.some(function(t){return"number"!=typeof t})))throw new Error(this._name+" - expected scaleSteps to be an array of numbers")}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 Ff(l,h){function i(t,e,n,r,o){var i=$e(l(t*e*n*n),[n,n,t,e]),a=He(l(e));return h.push({paramPath:r+"/filters"},{paramPath:r+"/"+(o?"batch_norm_offset":"bias")}),{filters:i,bias:a}}function p(t,e,n,r){var o=i(t,e,n,r,!0);return{filters:o.filters,batch_norm_offset:o.bias}}function t(t,e,n){var r,o,i,a,s,u,c;return{depthwise_conv:(o=n+"/depthwise_conv",i=$e(l(9*(r=t)),[3,3,r,1]),a=He(l(r)),s=He(l(r)),u=He(l(r)),c=He(l(r)),h.push({paramPath:o+"/filters"},{paramPath:o+"/batch_norm_scale"},{paramPath:o+"/batch_norm_offset"},{paramPath:o+"/batch_norm_mean"},{paramPath:o+"/batch_norm_variance"}),{filters:i,batch_norm_scale:a,batch_norm_offset:s,batch_norm_mean:u,batch_norm_variance:c}),pointwise_conv:p(t,e,1,n+"/pointwise_conv")}}return{extractMobilenetV1Params:function(){return{conv_0:p(3,32,3,"mobilenetv1/conv_0"),conv_1:t(32,64,"mobilenetv1/conv_1"),conv_2:t(64,128,"mobilenetv1/conv_2"),conv_3:t(128,128,"mobilenetv1/conv_3"),conv_4:t(128,256,"mobilenetv1/conv_4"),conv_5:t(256,256,"mobilenetv1/conv_5"),conv_6:t(256,512,"mobilenetv1/conv_6"),conv_7:t(512,512,"mobilenetv1/conv_7"),conv_8:t(512,512,"mobilenetv1/conv_8"),conv_9:t(512,512,"mobilenetv1/conv_9"),conv_10:t(512,512,"mobilenetv1/conv_10"),conv_11:t(512,512,"mobilenetv1/conv_11"),conv_12:t(512,1024,"mobilenetv1/conv_12"),conv_13:t(1024,1024,"mobilenetv1/conv_13")}},extractPredictionLayerParams:function(){return{conv_0:p(1024,256,1,"prediction_layer/conv_0"),conv_1:p(256,512,3,"prediction_layer/conv_1"),conv_2:p(512,128,1,"prediction_layer/conv_2"),conv_3:p(128,256,3,"prediction_layer/conv_3"),conv_4:p(256,128,1,"prediction_layer/conv_4"),conv_5:p(128,256,3,"prediction_layer/conv_5"),conv_6:p(256,64,1,"prediction_layer/conv_6"),conv_7:p(64,128,3,"prediction_layer/conv_7"),box_predictor_0:{box_encoding_predictor:i(512,12,1,"prediction_layer/box_predictor_0/box_encoding_predictor"),class_predictor:i(512,9,1,"prediction_layer/box_predictor_0/class_predictor")},box_predictor_1:{box_encoding_predictor:i(1024,24,1,"prediction_layer/box_predictor_1/box_encoding_predictor"),class_predictor:i(1024,18,1,"prediction_layer/box_predictor_1/class_predictor")},box_predictor_2:{box_encoding_predictor:i(512,24,1,"prediction_layer/box_predictor_2/box_encoding_predictor"),class_predictor:i(512,18,1,"prediction_layer/box_predictor_2/class_predictor")},box_predictor_3:{box_encoding_predictor:i(256,24,1,"prediction_layer/box_predictor_3/box_encoding_predictor"),class_predictor:i(256,18,1,"prediction_layer/box_predictor_3/class_predictor")},box_predictor_4:{box_encoding_predictor:i(256,24,1,"prediction_layer/box_predictor_4/box_encoding_predictor"),class_predictor:i(256,18,1,"prediction_layer/box_predictor_4/class_predictor")},box_predictor_5:{box_encoding_predictor:i(128,24,1,"prediction_layer/box_predictor_5/box_encoding_predictor"),class_predictor:i(128,18,1,"prediction_layer/box_predictor_5/class_predictor")}}}}}function Lf(t){var e=[],n=function(t,e){var i=ep(t,e);function a(t,e,n){return{filters:i(t+"/Conv2d_"+e+"_pointwise/weights",4,n+"/filters"),batch_norm_offset:i(t+"/Conv2d_"+e+"_pointwise/convolution_bn_offset",1,n+"/batch_norm_offset")}}function n(t){var e="mobilenetv1/conv_"+t,n="MobilenetV1/Conv2d_"+t+"_depthwise",r=e+"/depthwise_conv",o=e+"/pointwise_conv";return{depthwise_conv:{filters:i(n+"/depthwise_weights",4,r+"/filters"),batch_norm_scale:i(n+"/BatchNorm/gamma",1,r+"/batch_norm_scale"),batch_norm_offset:i(n+"/BatchNorm/beta",1,r+"/batch_norm_offset"),batch_norm_mean:i(n+"/BatchNorm/moving_mean",1,r+"/batch_norm_mean"),batch_norm_variance:i(n+"/BatchNorm/moving_variance",1,r+"/batch_norm_variance")},pointwise_conv:a("MobilenetV1",t,o)}}function r(t,e){return{filters:i(t+"/weights",4,e+"/filters"),bias:i(t+"/biases",1,e+"/bias")}}function o(t){return{box_encoding_predictor:r("Prediction/BoxPredictor_"+t+"/BoxEncodingPredictor","prediction_layer/box_predictor_"+t+"/box_encoding_predictor"),class_predictor:r("Prediction/BoxPredictor_"+t+"/ClassPredictor","prediction_layer/box_predictor_"+t+"/class_predictor")}}return{extractMobilenetV1Params:function(){return{conv_0:a("MobilenetV1",0,"mobilenetv1/conv_0"),conv_1:n(1),conv_2:n(2),conv_3:n(3),conv_4:n(4),conv_5:n(5),conv_6:n(6),conv_7:n(7),conv_8:n(8),conv_9:n(9),conv_10:n(10),conv_11:n(11),conv_12:n(12),conv_13:n(13)}},extractPredictionLayerParams:function(){return{conv_0:a("Prediction",0,"prediction_layer/conv_0"),conv_1:a("Prediction",1,"prediction_layer/conv_1"),conv_2:a("Prediction",2,"prediction_layer/conv_2"),conv_3:a("Prediction",3,"prediction_layer/conv_3"),conv_4:a("Prediction",4,"prediction_layer/conv_4"),conv_5:a("Prediction",5,"prediction_layer/conv_5"),conv_6:a("Prediction",6,"prediction_layer/conv_6"),conv_7:a("Prediction",7,"prediction_layer/conv_7"),box_predictor_0:o(0),box_predictor_1:o(1),box_predictor_2:o(2),box_predictor_3:o(3),box_predictor_4:o(4),box_predictor_5:o(5)}}}}(t,e),r=n.extractMobilenetV1Params,o=n.extractPredictionLayerParams,i=t["Output/extra_dim"];if(e.push({originalPath:"Output/extra_dim",paramPath:"output_layer/extra_dim"}),!fh(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 Xh(t,e),{params:a,paramMappings:e}}function Bf(e,n,r){return ue(function(){var t=Ss(e,n.filters,r,"same");return t=xu(t,n.batch_norm_offset),Sa(t,0,6)})}var Wf=.0010000000474974513;function zf(t,e){return ue(function(){var u=null,c=Bf(t,e.conv_0,[2,2]);if([e.conv_1,e.conv_2,e.conv_3,e.conv_4,e.conv_5,e.conv_6,e.conv_7,e.conv_8,e.conv_9,e.conv_10,e.conv_11,e.conv_12,e.conv_13].forEach(function(t,e){var n,r,o,i,a=e+1,s=(n=a,[2,4,6,12].some(function(t){return t===n})?[2,2]:[1,1]);r=c,o=t.depthwise_conv,i=s,c=Bf(c=ue(function(){var t=ks(r,o.filters,i,"same");return t=us(t,o.batch_norm_mean,o.batch_norm_variance,o.batch_norm_offset,o.batch_norm_scale,Wf),Sa(t,0,6)}),t.pointwise_conv,[1,1]),11===a&&(u=c)}),null===u)throw new Error("mobileNetV1 - output of conv layer 11 is null");return{out:c,conv11:u}})}function Uf(t,e,n){var r=t.arraySync(),o=Math.min(r[e][0],r[e][2]),i=Math.min(r[e][1],r[e][3]),a=Math.max(r[e][0],r[e][2]),s=Math.max(r[e][1],r[e][3]),u=Math.min(r[n][0],r[n][2]),c=Math.min(r[n][1],r[n][3]),l=Math.max(r[n][0],r[n][2]),h=Math.max(r[n][1],r[n][3]),p=(a-o)*(s-i),f=(l-u)*(h-c);if(p<=0||f<=0)return 0;var d=Math.max(o,u),v=Math.max(i,c),m=Math.min(a,l),g=Math.min(s,h),y=Math.max(m-d,0)*Math.max(g-v,0);return y/(p+f-y)}function Gf(t,e){var n,r,o=(n=ha(Qu(t,[1,0])),{sizes:r=[Bu(n[2],n[0]),Bu(n[3],n[1])],centers:[xu(n[0],Cu(r[0],Ve(2))),xu(n[1],Cu(r[1],Ve(2)))]}),i=o.sizes,a=o.centers,s=ha(Qu(e,[1,0])),u=Cu(Du(Ia(Cu(s[2],Ve(5))),i[0]),Ve(2)),c=xu(Du(Cu(s[0],Ve(10)),i[0]),a[0]),l=Cu(Du(Ia(Cu(s[3],Ve(5))),i[1]),Ve(2)),h=xu(Du(Cu(s[1],Ve(10)),i[1]),a[1]);return Qu(ua([Bu(c,u),Bu(h,l),xu(c,u),xu(h,l)]),[1,0])}function Vf(e,n){return ue(function(){var t=e.shape[0];return{boxPredictionEncoding:ia(Kh(e,n.box_encoding_predictor),[t,-1,1,4]),classPrediction:ia(Kh(e,n.class_predictor),[t,-1,3])}})}var Hf=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||1<=this._minConfidence)throw new Error(this._name+" - expected minConfidence to be a number between 0 and 1");if("number"!=typeof this._maxResults)throw new Error(this._name+" - expected maxResults to be a number")}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}(),qf=function(t){function e(){return t.call(this,"SsdMobilenetv1")||this}return a(e,t),e.prototype.forwardInput=function(u){var c=this.params;if(!c)throw new Error("SsdMobilenetv1 - load model before inference");return ue(function(){var l,h,p,o,i,a,t=u.toBatchTensor(512,!1).toFloat(),e=zf(Bu(Du(t,Ve(.007843137718737125)),Ve(1)),c.mobilenetv1),n=(l=e.out,h=e.conv11,p=c.prediction_layer,ue(function(){var t=Bf(Bf(l,p.conv_0,[1,1]),p.conv_1,[2,2]),e=Bf(Bf(t,p.conv_2,[1,1]),p.conv_3,[2,2]),n=Bf(Bf(e,p.conv_4,[1,1]),p.conv_5,[2,2]),r=Bf(Bf(n,p.conv_6,[1,1]),p.conv_7,[2,2]),o=Vf(h,p.box_predictor_0),i=Vf(l,p.box_predictor_1),a=Vf(t,p.box_predictor_2),s=Vf(e,p.box_predictor_3),u=Vf(n,p.box_predictor_4),c=Vf(r,p.box_predictor_5);return{boxPredictions:_i([o.boxPredictionEncoding,i.boxPredictionEncoding,a.boxPredictionEncoding,s.boxPredictionEncoding,u.boxPredictionEncoding,c.boxPredictionEncoding],1),classPredictions:_i([o.classPrediction,i.classPrediction,a.classPrediction,s.classPrediction,u.classPrediction,c.classPrediction],1)}})),r=n.boxPredictions,s=n.classPredictions;return o=r,i=s,a=c.output_layer,ue(function(){var t=o.shape[0],e=Gf(ia(ca(a.extra_dim,[t,1,1]),[-1,4]),ia(o,[-1,4]));e=ia(e,[t,e.shape[0]/t,4]);var n=Wa(Hs(i,[0,0,1],[-1,-1,-1])),r=Hs(n,[0,0,0],[-1,-1,1]);return r=ia(r,[t,r.shape[1]]),{boxes:ha(e),scores:ha(r)}})})},e.prototype.forward=function(n){return p(this,void 0,void 0,function(){var e;return P(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,yp(n)];case 1:return[2,e.apply(this,[t.sent()])]}})})},e.prototype.locateFaces=function(T,A){return void 0===A&&(A={}),p(this,void 0,void 0,function(){var l,h,p,f,d,v,m,g,y,x,w,b,E,C,_,S,R,N,k,I;return P(this,function(t){switch(t.label){case 0:return l=new Hf(A),h=l.maxResults,p=l.minConfidence,[4,yp(T)];case 1:for(f=t.sent(),d=this.forwardInput(f),v=d.boxes,m=d.scores,g=v[0],y=m[0],x=1;x<v.length;x++)v[x].dispose(),m[x].dispose();return E=(b=Array).from,[4,y.data()];case 2:return w=E.apply(b,[t.sent()]),e=w,n=h,i=.5,a=p,r=(o=g).shape[0],s=Math.min(n,r),u=e.map(function(t,e){return{score:t,boxIndex:e}}).filter(function(t){return t.score>a}).sort(function(t,e){return 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e=Object.assign({},{withSeparableConvs:t,iouThreshold:.4,classes:["face"]},t?{anchors:md,meanRgb:gd}:{anchors:vd,withClassScores:!0});return n.call(this,e)||this}return a(t,n),Object.defineProperty(t.prototype,"withSeparableConvs",{get:function(){return this.config.withSeparableConvs},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"anchors",{get:function(){return this.config.anchors},enumerable:!0,configurable:!0}),t.prototype.locateFaces=function(e,n){return p(this,void 0,void 0,function(){return P(this,function(t){switch(t.label){case 0:return[4,this.detect(e,n)];case 1:return[2,t.sent().map(function(t){return new Lp(t.score,t.relativeBox,{width:t.imageWidth,height:t.imageHeight})})]}})})},t.prototype.getDefaultModelName=function(){return this.withSeparableConvs?"tiny_yolov2_separable_conv_model":"tiny_yolov2_model"},t.prototype.extractParamsFromWeigthMap=function(t){return n.prototype.extractParamsFromWeigthMap.call(this,t)},t}(Op);var xd={ssdMobilenetv1:new qf,tinyFaceDetector:new dd,tinyYolov2:new yd,mtcnn:new hd,faceLandmark68Net:new Ef,faceLandmark68TinyNet:new _f,faceRecognitionNet:new Mf,faceExpressionNet:new Jp,ageGenderNet:new vf},wd=function(t,e){return xd.ssdMobilenetv1.locateFaces(t,e)},bd=function(t){return xd.faceLandmark68Net.detectLandmarks(t)},Ed=function(t){return xd.ssdMobilenetv1.load(t)},Cd=Ed,_d=wd,Sd=bd;function Rd(t,e){var n={age:e};return Object.assign({},t,n)}function Nd(t,e,n){var r={gender:e,genderProbability:n};return Object.assign({},t,r)}var kd=function(o){function t(t,e,n){var r=o.call(this)||this;return r.parentTask=t,r.input=e,r.extractedFaces=n,r}return a(t,o),t}(Xf),Id=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return a(e,t),e.prototype.run=function(){return p(this,void 0,void 0,function(){var e,n,r=this;return P(this,function(t){switch(t.label){case 0:return[4,this.parentTask];case 1:return[4,Yf(e=t.sent(),this.input,function(e){return p(r,void 0,void 0,function(){return P(this,function(t){switch(t.label){case 0:return[4,Promise.all(e.map(function(t){return xd.faceExpressionNet.predictExpressions(t)}))];case 1:return[2,t.sent()]}})})},this.extractedFaces)];case 2:return n=t.sent(),[2,e.map(function(t,e){return tf(t,n[e])})]}})})},e.prototype.withAgeAndGender=function(){return new Od(this,this.input)},e}(kd),Td=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return a(e,t),e.prototype.run=function(){return p(this,void 0,void 0,function(){var e,n;return P(this,function(t){switch(t.label){case 0:return[4,this.parentTask];case 1:return(e=t.sent())?[4,Qf(e,this.input,function(t){return xd.faceExpressionNet.predictExpressions(t)},this.extractedFaces)]:[2];case 2:return n=t.sent(),[2,tf(e,n)]}})})},e.prototype.withAgeAndGender=function(){return new Pd(this,this.input)},e}(kd),Ad=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return a(e,t),e.prototype.withAgeAndGender=function(){return new Fd(this,this.input)},e.prototype.withFaceDescriptors=function(){return new Wd(this,this.input)},e}(Id),Dd=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return a(e,t),e.prototype.withAgeAndGender=function(){return new Ld(this,this.input)},e.prototype.withFaceDescriptor=function(){return new zd(this,this.input)},e}(Td),Md=function(o){function t(t,e,n){var r=o.call(this)||this;return r.parentTask=t,r.input=e,r.extractedFaces=n,r}return a(t,o),t}(Xf),Od=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return a(e,t),e.prototype.run=function(){return p(this,void 0,void 0,function(){var e,o,n=this;return P(this,function(t){switch(t.label){case 0:return[4,this.parentTask];case 1:return[4,Yf(e=t.sent(),this.input,function(e){return p(n,void 0,void 0,function(){return P(this,function(t){switch(t.label){case 0:return[4,Promise.all(e.map(function(t){return xd.ageGenderNet.predictAgeAndGender(t)}))];case 1:return[2,t.sent()]}})})},this.extractedFaces)];case 2:return o=t.sent(),[2,e.map(function(t,e){var n=o[e],r=n.age;return Rd(Nd(t,n.gender,n.genderProbability),r)})]}})})},e.prototype.withFaceExpressions=function(){return new Id(this,this.input)},e}(Md),Pd=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return a(e,t),e.prototype.run=function(){return p(this,void 0,void 0,function(){var e,n,r,o,i;return P(this,function(t){switch(t.label){case 0:return[4,this.parentTask];case 1:return(e=t.sent())?[4,Qf(e,this.input,function(t){return xd.ageGenderNet.predictAgeAndGender(t)},this.extractedFaces)]:[2];case 2:return n=t.sent(),r=n.age,o=n.gender,i=n.genderProbability,[2,Rd(Nd(e,o,i),r)]}})})},e.prototype.withFaceExpressions=function(){return new Td(this,this.input)},e}(Md),Fd=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return a(e,t),e.prototype.withFaceExpressions=function(){return new 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Of(n[e],t)})]}})})},e.prototype.withFaceExpressions=function(){return new Ad(this,this.input)},e.prototype.withAgeAndGender=function(){return new Fd(this,this.input)},e}(Bd),zd=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return a(e,t),e.prototype.run=function(){return p(this,void 0,void 0,function(){var e,n;return P(this,function(t){switch(t.label){case 0:return[4,this.parentTask];case 1:return(e=t.sent())?[4,Qf(e,this.input,function(t){return xd.faceRecognitionNet.computeFaceDescriptor(t)},null,function(t){return t.landmarks.align(null,{useDlibAlignment:!0})})]:[2];case 2:return n=t.sent(),[2,Of(e,n)]}})})},e.prototype.withFaceExpressions=function(){return new Dd(this,this.input)},e.prototype.withAgeAndGender=function(){return new Ld(this,this.input)},e}(Bd),Ud=function(o){function t(t,e,n){var r=o.call(this)||this;return r.parentTask=t,r.input=e,r.useTinyLandmarkNet=n,r}return a(t,o),Object.defineProperty(t.prototype,"landmarkNet",{get:function(){return this.useTinyLandmarkNet?xd.faceLandmark68TinyNet:xd.faceLandmark68Net},enumerable:!0,configurable:!0}),t}(Xf),Gd=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return a(e,t),e.prototype.run=function(){return p(this,void 0,void 0,function(){var e,n,r,o,i,a=this;return P(this,function(t){switch(t.label){case 0:return[4,this.parentTask];case 1:return e=t.sent(),n=e.map(function(t){return t.detection}),this.input instanceof dt?[4,wf(this.input,n)]:[3,3];case 2:return o=t.sent(),[3,5];case 3:return[4,xf(this.input,n)];case 4:o=t.sent(),t.label=5;case 5:return r=o,[4,Promise.all(r.map(function(t){return a.landmarkNet.detectLandmarks(t)}))];case 6:return i=t.sent(),r.forEach(function(t){return t instanceof dt&&t.dispose()}),[2,e.map(function(t,e){return of(t,i[e])})]}})})},e.prototype.withFaceExpressions=function(){return new Ad(this,this.input)},e.prototype.withAgeAndGender=function(){return new Fd(this,this.input)},e.prototype.withFaceDescriptors=function(){return new Wd(this,this.input)},e}(Ud),Vd=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return a(e,t),e.prototype.run=function(){return p(this,void 0,void 0,function(){var e,n,r,o,i;return P(this,function(t){switch(t.label){case 0:return[4,this.parentTask];case 1:return(e=t.sent())?(n=e.detection,this.input instanceof dt?[4,wf(this.input,[n])]:[3,3]):[2];case 2:return o=t.sent(),[3,5];case 3:return[4,xf(this.input,[n])];case 4:o=t.sent(),t.label=5;case 5:return r=o,[4,this.landmarkNet.detectLandmarks(r[0])];case 6:return i=t.sent(),r.forEach(function(t){return t instanceof dt&&t.dispose()}),[2,of(e,i)]}})})},e.prototype.withFaceExpressions=function(){return new Dd(this,this.input)},e.prototype.withAgeAndGender=function(){return new Ld(this,this.input)},e.prototype.withFaceDescriptor=function(){return new zd(this,this.input)},e}(Ud),Hd=function(r){function t(t,e){void 0===e&&(e=new Hf);var n=r.call(this)||this;return n.input=t,n.options=e,n}return a(t,r),t}(Xf),qd=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return a(e,t),e.prototype.run=function(){return p(this,void 0,void 0,function(){var e,n,r,o;return P(this,function(t){switch(t.label){case 0:return n=(e=this).input,(r=e.options)instanceof Pf?[4,xd.mtcnn.forward(n,r)]:[3,2];case 1:return[2,t.sent().map(function(t){return t.detection})];case 2:if(!(o=r instanceof Kf?function(t){return xd.tinyFaceDetector.locateFaces(t,r)}:r instanceof Hf?function(t){return xd.ssdMobilenetv1.locateFaces(t,r)}:r instanceof Mp?function(t){return xd.tinyYolov2.locateFaces(t,r)}:null))throw new Error("detectFaces - expected options to be instance of TinyFaceDetectorOptions | SsdMobilenetv1Options | MtcnnOptions | TinyYolov2Options");return[2,o(n)]}})})},e.prototype.runAndExtendWithFaceDetections=function(){var t=this;return new Promise(function(n){return p(t,void 0,void 0,function(){var e;return P(this,function(t){switch(t.label){case 0:return[4,this.run()];case 1:return e=t.sent(),[2,n(e.map(function(t){return Wp({},t)}))]}})})})},e.prototype.withFaceLandmarks=function(t){return void 0===t&&(t=!1),new Gd(this.runAndExtendWithFaceDetections(),this.input,t)},e.prototype.withFaceExpressions=function(){return new Id(this.runAndExtendWithFaceDetections(),this.input)},e.prototype.withAgeAndGender=function(){return new Od(this.runAndExtendWithFaceDetections(),this.input)},e}(Hd),jd=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return a(e,t),e.prototype.run=function(){return p(this,void 0,void 0,function(){var e,n;return P(this,function(t){switch(t.label){case 0:return[4,new qd(this.input,this.options)];case 1:return e=t.sent(),n=e[0],e.forEach(function(t){t.score>n.score&&(n=t)}),[2,n]}})})},e.prototype.runAndExtendWithFaceDetection=function(){var t=this;return new Promise(function(n){return p(t,void 0,void 0,function(){var e;return P(this,function(t){switch(t.label){case 0:return[4,this.run()];case 1:return e=t.sent(),[2,n(e?Wp({},e):void 0)]}})})})},e.prototype.withFaceLandmarks=function(t){return void 0===t&&(t=!1),new Vd(this.runAndExtendWithFaceDetection(),this.input,t)},e.prototype.withFaceExpressions=function(){return new Td(this.runAndExtendWithFaceDetection(),this.input)},e.prototype.withAgeAndGender=function(){return new Pd(this.runAndExtendWithFaceDetection(),this.input)},e}(Hd);function $d(t,e){return void 0===e&&(e=new Hf),new qd(t,e)}function Kd(e,n){return p(this,void 0,void 0,function(){return P(this,function(t){switch(t.label){case 0:return[4,$d(e,new Hf(n?{minConfidence:n}:{})).withFaceLandmarks().withFaceDescriptors()];case 1:return[2,t.sent()]}})})}var Xd=Kd;function Yd(t,e){if(t.length!==e.length)throw new Error("euclideanDistance: arr1.length !== arr2.length");var n=Array.from(t),r=Array.from(e);return Math.sqrt(n.map(function(t,e){return t-r[e]}).reduce(function(t,e){return t+Math.pow(e,2)},0))}var Qd=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 yf)return t;if(t instanceof Float32Array)return new yf(o(),[t]);if(t.descriptor&&t.descriptor instanceof Float32Array)return new yf(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(e,t){return t.map(function(t){return Yd(t,e)}).reduce(function(t,e){return t+e},0)/(t.length||1)},t.prototype.matchDescriptor=function(r){var o=this;return this.labeledDescriptors.map(function(t){var e=t.descriptors,n=t.label;return new gf(n,o.computeMeanDistance(r,e))}).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 gf("unknown",e.distance)},t}();var Jd=O({},$h,uf);c.AgeGenderNet=vf,c.BoundingBox=Rh,c.Box=Sh,c.ComposableTask=Xf,c.ComputeAllFaceDescriptorsTask=Wd,c.ComputeFaceDescriptorsTaskBase=Bd,c.ComputeSingleFaceDescriptorTask=zd,c.DetectAllFaceLandmarksTask=Gd,c.DetectAllFacesTask=qd,c.DetectFaceLandmarksTaskBase=Ud,c.DetectFacesTaskBase=Hd,c.DetectSingleFaceLandmarksTask=Vd,c.DetectSingleFaceTask=jd,c.Dimensions=ch,c.FACE_EXPRESSION_LABELS=Yp,c.FaceDetection=Lp,c.FaceDetectionNet=$f,c.FaceExpressionNet=Jp,c.FaceExpressions=Qp,c.FaceLandmark68Net=Ef,c.FaceLandmark68TinyNet=_f,c.FaceLandmarkNet=Sf,c.FaceLandmarks=ef,c.FaceLandmarks5=mf,c.FaceLandmarks68=nf,c.FaceMatch=gf,c.FaceMatcher=Qd,c.FaceRecognitionNet=Mf,c.LabeledBox=Nh,c.LabeledFaceDescriptors=yf,c.Mtcnn=hd,c.MtcnnOptions=Pf,c.NetInput=gp,c.NeuralNetwork=xp,c.ObjectDetection=kh,c.Point=lh,c.PredictedBox=Ih,c.Rect=Th,c.SsdMobilenetv1=qf,c.SsdMobilenetv1Options=Hf,c.TfjsImageRecognitionBase=Pp,c.TinyFaceDetector=dd,c.TinyFaceDetectorOptions=Kf,c.TinyYolov2=yd,c.allFaces=Xd,c.allFacesMtcnn=function(e,n){return 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