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wO(e){let t;return e.rank===0||e.rank===1?t=ue(e,[1,1,1,e.size]):e.rank===2?t=ue(e,[1,1,e.shape[0],e.shape[1]]):e.rank===3?t=ue(e,[1,e.shape[0],e.shape[1],e.shape[2]]):t=e,t}function kO(e,t,n,r,s,a){a==null&&(a=.001);let o=P(e,"x","batchNorm"),i=P(t,"mean","batchNorm"),l=P(n,"variance","batchNorm"),u;s!=null&&(u=P(s,"scale","batchNorm"));let c;r!=null&&(c=P(r,"offset","batchNorm")),L(i.rank===l.rank,()=>"Batch normalization gradient requires mean and variance to have equal ranks."),L(c==null||i.rank===c.rank,()=>"Batch normalization gradient requires mean and offset to have equal ranks."),L(u==null||i.rank===u.rank,()=>"Batch normalization gradient requires mean and scale to have equal ranks.");let h={x:wO(o),scale:u,offset:c,mean:i,variance:l},p={varianceEpsilon:a},f=U.runKernel(Yv,h,p);return ue(f,o.shape)}var Ap=H({batchNorm_:kO});function IO(e,t,n,r,s,a){let o=P(e,"x","batchNorm"),i=P(t,"mean","batchNorm"),l=P(n,"variance","batchNorm"),u;s!=null&&(u=P(s,"scale","batchNorm"));let c;return r!=null&&(c=P(r,"offset","batchNorm")),L(o.rank===2,()=>`Error in batchNorm2D: x must be rank 2 but got rank ${o.rank}.`),L(i.rank===2||i.rank===1,()=>`Error in batchNorm2D: mean must be rank 2 or rank 1 but got rank ${i.rank}.`),L(l.rank===2||l.rank===1,()=>`Error in batchNorm2D: variance must be rank 2 or rank 1 but got rank ${l.rank}.`),u!=null&&L(u.rank===2||u.rank===1,()=>`Error in batchNorm2D: scale must be rank 2 or rank 1 but got rank ${u.rank}.`),c!=null&&L(c.rank===2||c.rank===1,()=>`Error in batchNorm2D: offset must be rank 2 or rank 1 but got rank ${c.rank}.`),Ap(o,i,l,c,u,a)}var SO=H({batchNorm2d_:IO});function TO(e,t,n,r,s,a){let o=P(e,"x","batchNorm"),i=P(t,"mean","batchNorm"),l=P(n,"variance","batchNorm"),u;s!=null&&(u=P(s,"scale","batchNorm"));let c;return r!=null&&(c=P(r,"offset","batchNorm")),L(o.rank===3,()=>`Error in batchNorm3D: x must be rank 3 but got rank ${o.rank}.`),L(i.rank===3||i.rank===1,()=>`Error in batchNorm3D: mean must be rank 3 or rank 1 but 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or rank 1 but got rank ${u.rank}.`),c!=null&&L(c.rank===4||c.rank===1,()=>`Error in batchNorm4D: offset must be rank 4 or rank 1 but got rank ${c.rank}.`),Ap(o,i,l,c,u,a)}var EO=H({batchNorm4d_:CO});function $O(e,t,n){let r=P(e,"x","bincount"),s=P(t,"weights","bincount");L(r.dtype==="int32",()=>`Error in bincount: input dtype must be int32, but got ${r.dtype}`),L(n>=0,()=>`size must be non-negative, but got ${n}.`),L(s.size===r.size||s.size===0,()=>`Error in bincount: weights must have the same size as input or0-length, but got input shape: ${r.shape}, weights shape: ${s.shape}.`);let a={x:r,weights:s},o={size:n};return U.runKernel(gv,a,o)}var Vk=H({bincount_:$O});function _O(e,t){let n=P(e,"broadcastTo","x"),r=n.shape;if(t.some(u=>!(u>0)||u%1!=0))throw new Error(`broadcastTo(): Invalid broadcast shape [${t}].`);if(t.lengthn.rank){let u=n.shape.slice();for(;u.length=0;u--)if(s[u]===t[u])a[u]=1;else if(n.shape[u]!==1)throw new Error(`broadcastTo(): [${r}] cannot be broadcast to 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s=P(e,"labels","hingeLoss"),a=P(t,"predictions","hingeLoss"),o=null;n!=null&&(o=P(n,"weights","hingeLoss")),Mn(s.shape,a.shape,"Error in hingeLoss: ");let i=ut(1);s=He(fe(ut(2),s),i);let l=Cp(He(i,fe(s,a)));return sa(l,o,r)}var uV=H({hingeLoss_:lV});function cV(e,t,n,r=1,s=Pn.SUM_BY_NONZERO_WEIGHTS){let a=P(e,"labels","huberLoss"),o=P(t,"predictions","huberLoss"),i=null;n!=null&&(i=P(n,"weights","huberLoss")),Mn(a.shape,o.shape,"Error in huberLoss: ");let l=ut(r),u=Nr(He(o,a)),c=i4(u,l),d=He(u,c),h=Me(fe(ut(.5),ns(c)),fe(l,d));return sa(h,i,s)}var dV=H({huberLoss_:cV});function hV(e,t,n,r=1e-7,s=Pn.SUM_BY_NONZERO_WEIGHTS){let a=P(e,"labels","logLoss"),o=P(t,"predictions","logLoss"),i=null;n!=null&&(i=P(n,"weights","logLoss")),Mn(a.shape,o.shape,"Error in logLoss: ");let l=ut(1),u=ut(r),c=$a(fe(a,uc(Me(o,u)))),d=fe(He(l,a),uc(Me(He(l,o),u))),h=He(c,d);return sa(h,i,s)}var pV=H({logLoss_:hV});function fV(e,t,n,r=Pn.SUM_BY_NONZERO_WEIGHTS){let s=P(e,"labels","meanSquaredError"),a=P(t,"predictions","meanSquaredError"),o=null;n!=null&&(o=P(n,"weights","meanSquaredError")),Mn(s.shape,a.shape,"Error in meanSquaredError: ");let i=m4(s,a);return sa(i,o,r)}var mV=H({meanSquaredError_:fV});function gV(e,t){let n=P(e,"labels","sigmoidCrossEntropyWithLogits"),r=P(t,"logits","sigmoidCrossEntropyWithLogits");Mn(n.shape,r.shape,"Error in sigmoidCrossEntropyWithLogits: ");let s=Cp(r),a=fe(r,n),o=Jk(wo($a(Nr(r))));return Me(He(s,a),o)}function yV(e,t,n,r=0,s=Pn.SUM_BY_NONZERO_WEIGHTS){let a=P(e,"multiClassLabels","sigmoidCrossEntropy"),o=P(t,"logits","sigmoidCrossEntropy"),i=null;if(n!=null&&(i=P(n,"weights","sigmoidCrossEntropy")),Mn(a.shape,o.shape,"Error in sigmoidCrossEntropy: "),r>0){let u=ut(r),c=ut(1),d=ut(.5);a=Me(fe(a,He(c,u)),fe(d,u))}let l=gV(a,o);return sa(l,i,s)}var AV=H({sigmoidCrossEntropy_:yV});function xV(e,t,n=-1){if(n===-1&&(n=t.rank-1),n!==t.rank-1)throw Error(`Softmax cross entropy along a non-last dimension is not yet supported. Labels / logits was rank ${t.rank} and dim was ${n}`);return Ns((s,a,o)=>{let l=n4(a,[n],!0),u=He(Pt(a,"float32"),l);o([s,u]);let c=$a(fe(u,s));return{value:_t(c,[n]),gradFunc:(p,f)=>{let[m,g]=f,y=cc(p.shape,[n]);return[fe(ue(p,y),He(Pt(m,"float32"),wo(g))),fe(ue(p,y),He(wo(g),Pt(m,"float32")))]}}})(e,t)}function bV(e,t,n,r=0,s=Pn.SUM_BY_NONZERO_WEIGHTS){let a=P(e,"onehotLabels","softmaxCrossEntropy"),o=P(t,"logits","softmaxCrossEntropy"),i=null;if(n!=null&&(i=P(n,"weights","softmaxCrossEntropy")),Mn(a.shape,o.shape,"Error in softmaxCrossEntropy: "),r>0){let u=ut(r),c=ut(1),d=ut(a.shape[1]);a=Me(fe(a,He(c,u)),Qe(u,d))}let l=xV(a,o);return sa(l,i,s)}var vV=H({softmaxCrossEntropy_:bV});function wV(e,t,n,r){let s=P(e,"indices","sparseFillEmptyRows"),a=P(t,"values","sparseFillEmptyRows"),o=P(n,"denseShape","sparseFillEmptyRows"),i=P(r,"defaultValue","sparseFillEmptyRows",a.dtype);if(s.rank!==2)throw new Error(`Indices should be Tensor2D but received shape ${s.shape}`);if(a.rank!==1)throw new Error(`Values should be Tensor1D but received shape ${a.shape}`);if(o.rank!==1)throw new Error(`Dense shape should be Tensor1D but received shape ${o.shape}`);if(i.rank!==0)throw new Error(`Default value should be a scalar but received shape ${i.shape}`);let l={indices:s,values:a,denseShape:o,defaultValue:i},u=U.runKernel(h7,l);return{outputIndices:u[0],outputValues:u[1],emptyRowIndicator:u[2],reverseIndexMap:u[3]}}var kV=H({sparseFillEmptyRows_:wV});function IV(e,t,n){let r=P(e,"inputIndices","sparseReshape"),s=P(t,"inputShape","sparseReshape"),a=P(n,"newShape","sparseReshape");if(r.rank!==2)throw new Error(`Input indices should be Tensor2D but received shape ${r.shape}`);if(s.rank!==1)throw new Error(`Input shape should be Tensor1D but received shape ${s.shape}`);if(a.rank!==1)throw new Error(`New shape should be Tensor1D but received shape ${a.shape}`);let o={inputIndices:r,inputShape:s,newShape:a},i=U.runKernel(p7,o);return{outputIndices:i[0],outputShape:i[1]}}var SV=H({sparseReshape_:IV});function TV(e,t,n){let r=P(e,"data","sparseSegmentMean"),s=P(t,"indices","sparseSegmentMean"),a=P(n,"segmentIds","sparseSegmentMean");if(r.rank<1)throw new Error("Data should be at least 1 dimensional but received scalar");if(s.rank!==1)throw new Error(`Indices should be Tensor1D but received shape ${s.shape}`);if(a.rank!==1)throw new Error(`Segment ids should be Tensor1D but received shape ${a.shape}`);let o={data:r,indices:s,segmentIds:a};return U.runKernel(f7,o)}var NV=H({sparseSegmentMean_:TV});function CV(e,t,n){let r=P(e,"data","sparseSegmentSum"),s=P(t,"indices","sparseSegmentSum"),a=P(n,"segmentIds","sparseSegmentSum");if(r.rank<1)throw new Error("Data should be at least 1 dimensional but received scalar");if(s.rank!==1)throw new Error(`Indices should be Tensor1D but received shape ${s.shape}`);if(a.rank!==1)throw new Error(`Segment ids should be Tensor1D but received shape ${a.shape}`);let o={data:r,indices:s,segmentIds:a};return U.runKernel(m7,o)}var EV=H({sparseSegmentSum_:CV});function $V(e,t,n,r,s,a,o,i){let l=P(e,"data","stringNGrams","string");if(l.dtype!=="string")throw new Error("Data must be of datatype string");if(l.shape.length!==1)throw new Error(`Data must be a vector, saw: ${l.shape}`);let u=P(t,"dataSplits","stringNGrams");if(u.dtype!=="int32")throw new Error("Data splits must be of datatype int32");let c={separator:n,nGramWidths:r,leftPad:s,rightPad:a,padWidth:o,preserveShortSequences:i},d={data:l,dataSplits:u},h=U.runKernel(x7,d,c);return{nGrams:h[0],nGramsSplits:h[1]}}var _V=H({stringNGrams_:$V});function RV(e,t,n=!0){let r=P(e,"input","stringSplit","string"),s=P(t,"delimiter","stringSplit","string");if(r.rank!==1)throw new Error(`Input should be Tensor1D but received shape ${r.shape}`);if(s.rank!==0)throw new Error(`Delimiter should be a scalar but received shape ${s.shape}`);let a={skipEmpty:n},o={input:r,delimiter:s},i=U.runKernel(b7,o,a);return{indices:i[0],values:i[1],shape:i[2]}}var DV=H({stringSplit_:RV});function FV(e,t){let n=P(e,"input","stringToHashBucketFast","string"),r={numBuckets:t};if(t<=0)throw new Error("Number of buckets must be at least 1");let s={input:n};return U.runKernel(v7,s,r)}var MV=H({stringToHashBucketFast_:FV}),OV={fft:ly,ifft:Ep,rfft:uy,irfft:f4},PV={hammingWindow:pW,hannWindow:w4,frame:k4,stft:yW},Ye={flipLeftRight:vW,resizeNearestNeighbor:GW,resizeBilinear:UW,rotateWithOffset:kW,cropAndResize:xW,nonMaxSuppression:SW,nonMaxSuppressionAsync:DW,nonMaxSuppressionWithScore:MW,nonMaxSuppressionWithScoreAsync:PW,nonMaxSuppressionPadded:LW,nonMaxSuppressionPaddedAsync:WW,threshold:KW,transform:ZW},zV={bandPart:JW,gramSchmidt:eV,qr:nV},LV={absoluteDifference:aV,computeWeightedLoss:sa,cosineDistance:iV,hingeLoss:uV,huberLoss:dV,logLoss:pV,meanSquaredError:mV,sigmoidCrossEntropy:AV,softmaxCrossEntropy:vV},BV={sparseFillEmptyRows:kV,sparseReshape:SV,sparseSegmentMean:NV,sparseSegmentSum:EV},WV={stringNGrams:_V,stringSplit:DV,stringToHashBucketFast:MV},Ra=class extends $k{minimize(e,t=!1,n){let{value:r,grads:s}=this.computeGradients(e,n);if(n!=null){let a=n.map(o=>({name:o.name,tensor:s[o.name]}));this.applyGradients(a)}else this.applyGradients(s);return Ve(s),t?r:(r.dispose(),null)}get iterations(){return this.iterations_==null&&(this.iterations_=0),this.iterations_}incrementIterations(){this.iterations_=this.iterations+1}computeGradients(e,t){return Qk(e,t)}dispose(){this.iterations_!=null&&Ve(this.iterations_)}async saveIterations(){return this.iterations_==null&&(this.iterations_=0),{name:"iter",tensor:ut(this.iterations_,"int32")}}async getWeights(){throw new Error("getWeights() is not implemented for this optimizer yet.")}async setWeights(e){throw new Error(`setWeights() is not implemented for this optimizer class ${this.getClassName()}`)}async extractIterations(e){return this.iterations_=(await e[0].tensor.data())[0],e.slice(1)}};Object.defineProperty(Ra,Symbol.hasInstance,{value:e=>e.minimize!=null&&e.computeGradients!=null&&e.applyGradients!=null});var Fp=class extends Ra{constructor(e,t,n=null){super();this.learningRate=e,this.rho=t,this.epsilon=n,this.accumulatedGrads=[],this.accumulatedUpdates=[],n==null&&(this.epsilon=U.backend.epsilon())}applyGradients(e){(Array.isArray(e)?e.map(n=>n.name):Object.keys(e)).forEach((n,r)=>{let s=U.registeredVariables[n],a=!1;this.accumulatedGrads[r]==null&&(this.accumulatedGrads[r]={originalName:`${n}/accum_grad`,variable:Ue(()=>Cr(s).variable(a))}),this.accumulatedUpdates[r]==null&&(this.accumulatedUpdates[r]={originalName:`${n}/accum_var`,variable:Ue(()=>Cr(s).variable(a))});let o=Array.isArray(e)?e[r].tensor:e[n];if(o==null)return;let i=this.accumulatedGrads[r].variable,l=this.accumulatedUpdates[r].variable;Ue(()=>{let u=Me(fe(i,this.rho),fe(ns(o),1-this.rho)),c=fe(Qe(na(Me(l,this.epsilon)),na(Me(i,this.epsilon))),o),d=Me(fe(l,this.rho),fe(ns(c),1-this.rho));i.assign(u),l.assign(d);let h=Me(fe(c,-this.learningRate),s);s.assign(h)})}),this.incrementIterations()}dispose(){this.accumulatedUpdates!=null&&(Ve(this.accumulatedGrads.map(e=>e.variable)),Ve(this.accumulatedUpdates.map(e=>e.variable)))}async getWeights(){let e=[...this.accumulatedGrads,...this.accumulatedUpdates];return[await this.saveIterations()].concat(e.map(t=>({name:t.originalName,tensor:t.variable})))}async setWeights(e){e=await this.extractIterations(e);let t=e.length/2,n=!1;this.accumulatedGrads=e.slice(0,t).map(r=>({originalName:r.name,variable:r.tensor.variable(n)})),this.accumulatedUpdates=e.slice(t,t*2).map(r=>({originalName:r.name,variable:r.tensor.variable(n)}))}getConfig(){return{learningRate:this.learningRate,rho:this.rho,epsilon:this.epsilon}}static fromConfig(e,t){return new e(t.learningRate,t.rho,t.epsilon)}};Fp.className="Adadelta";Ea(Fp);var Mp=class extends Ra{constructor(e,t=.1){super();this.learningRate=e,this.initialAccumulatorValue=t,this.accumulatedGrads=[]}applyGradients(e){(Array.isArray(e)?e.map(n=>n.name):Object.keys(e)).forEach((n,r)=>{let s=U.registeredVariables[n];if(this.accumulatedGrads[r]==null){let i=!1;this.accumulatedGrads[r]={originalName:`${n}/accumulator`,variable:Ue(()=>wp(s.shape,this.initialAccumulatorValue).variable(i))}}let a=Array.isArray(e)?e[r].tensor:e[n];if(a==null)return;let o=this.accumulatedGrads[r].variable;Ue(()=>{let i=Me(o,ns(a));o.assign(i);let l=Me(fe(Qe(a,na(Me(i,U.backend.epsilon()))),-this.learningRate),s);s.assign(l)})}),this.incrementIterations()}dispose(){this.accumulatedGrads!=null&&Ve(this.accumulatedGrads.map(e=>e.variable))}async getWeights(){return[await this.saveIterations()].concat(this.accumulatedGrads.map(e=>({name:e.originalName,tensor:e.variable})))}async setWeights(e){e=await this.extractIterations(e);let t=!1;this.accumulatedGrads=e.map(n=>({originalName:n.name,variable:n.tensor.variable(t)}))}getConfig(){return{learningRate:this.learningRate,initialAccumulatorValue:this.initialAccumulatorValue}}static fromConfig(e,t){return new e(t.learningRate,t.initialAccumulatorValue)}};Mp.className="Adagrad";Ea(Mp);var Op=class extends Ra{constructor(e,t,n,r=null){super();this.learningRate=e,this.beta1=t,this.beta2=n,this.epsilon=r,this.accumulatedFirstMoment=[],this.accumulatedSecondMoment=[],Ue(()=>{this.accBeta1=ut(t).variable(),this.accBeta2=ut(n).variable()}),r==null&&(this.epsilon=U.backend.epsilon())}applyGradients(e){let t=Array.isArray(e)?e.map(n=>n.name):Object.keys(e);Ue(()=>{let n=He(1,this.accBeta1),r=He(1,this.accBeta2);t.forEach((s,a)=>{let o=U.registeredVariables[s],i=!1;this.accumulatedFirstMoment[a]==null&&(this.accumulatedFirstMoment[a]={originalName:`${s}/m`,variable:Ue(()=>Cr(o).variable(i))}),this.accumulatedSecondMoment[a]==null&&(this.accumulatedSecondMoment[a]={originalName:`${s}/v`,variable:Ue(()=>Cr(o).variable(i))});let l=Array.isArray(e)?e[a].tensor:e[s];if(l==null)return;let u=this.accumulatedFirstMoment[a].variable,c=this.accumulatedSecondMoment[a].variable,d=Me(fe(u,this.beta1),fe(l,1-this.beta1)),h=Me(fe(c,this.beta2),fe(ns(l),1-this.beta2)),p=Qe(d,n),f=Qe(h,r);u.assign(d),c.assign(h);let m=Me(fe(Qe(p,Me(na(f),this.epsilon)),-this.learningRate),o);o.assign(m)}),this.accBeta1.assign(fe(this.accBeta1,this.beta1)),this.accBeta2.assign(fe(this.accBeta2,this.beta2))}),this.incrementIterations()}dispose(){this.accBeta1.dispose(),this.accBeta2.dispose(),this.accumulatedFirstMoment!=null&&Ve(this.accumulatedFirstMoment.map(e=>e.variable)),this.accumulatedSecondMoment!=null&&Ve(this.accumulatedSecondMoment.map(e=>e.variable))}async getWeights(){let e=[...this.accumulatedFirstMoment,...this.accumulatedSecondMoment];return[await this.saveIterations()].concat(e.map(t=>({name:t.originalName,tensor:t.variable})))}async setWeights(e){e=await this.extractIterations(e),Ue(()=>{this.accBeta1.assign(hc(this.beta1,this.iterations_+1)),this.accBeta2.assign(hc(this.beta2,this.iterations_+1))});let t=e.length/2,n=!1;this.accumulatedFirstMoment=e.slice(0,t).map(r=>({originalName:r.name,variable:r.tensor.variable(n)})),this.accumulatedSecondMoment=e.slice(t,t*2).map(r=>({originalName:r.name,variable:r.tensor.variable(n)}))}getConfig(){return{learningRate:this.learningRate,beta1:this.beta1,beta2:this.beta2,epsilon:this.epsilon}}static fromConfig(e,t){return new e(t.learningRate,t.beta1,t.beta2,t.epsilon)}};Op.className="Adam";Ea(Op);var Pp=class extends Ra{constructor(e,t,n,r=null,s=0){super();this.learningRate=e,this.beta1=t,this.beta2=n,this.epsilon=r,this.decay=s,this.accumulatedFirstMoment=[],this.accumulatedWeightedInfNorm=[],Ue(()=>{this.iteration=ut(0).variable(),this.accBeta1=ut(t).variable()}),r==null&&(this.epsilon=U.backend.epsilon())}applyGradients(e){let t=Array.isArray(e)?e.map(n=>n.name):Object.keys(e);Ue(()=>{let n=He(1,this.accBeta1),r=Qe(-this.learningRate,Me(fe(this.iteration,this.decay),1));t.forEach((s,a)=>{let o=U.registeredVariables[s],i=!1;this.accumulatedFirstMoment[a]==null&&(this.accumulatedFirstMoment[a]={originalName:`${s}/m`,variable:Cr(o).variable(i)}),this.accumulatedWeightedInfNorm[a]==null&&(this.accumulatedWeightedInfNorm[a]={originalName:`${s}/v`,variable:Cr(o).variable(i)});let l=Array.isArray(e)?e[a].tensor:e[s];if(l==null)return;let u=this.accumulatedFirstMoment[a].variable,c=this.accumulatedWeightedInfNorm[a].variable,d=Me(fe(u,this.beta1),fe(l,1-this.beta1)),h=fe(c,this.beta2),p=Nr(l),f=o4(h,p);u.assign(d),c.assign(f);let m=Me(fe(Qe(r,n),Qe(d,Me(f,this.epsilon))),o);o.assign(m)}),this.iteration.assign(Me(this.iteration,1)),this.accBeta1.assign(fe(this.accBeta1,this.beta1))}),this.incrementIterations()}dispose(){this.accBeta1.dispose(),this.iteration.dispose(),this.accumulatedFirstMoment!=null&&Ve(this.accumulatedFirstMoment.map(e=>e.variable)),this.accumulatedWeightedInfNorm!=null&&Ve(this.accumulatedWeightedInfNorm.map(e=>e.variable))}async getWeights(){throw new Error("getWeights() is not implemented for Adamax yet.")}async setWeights(e){throw new Error("setWeights() is not implemented for Adamax yet.")}getConfig(){return{learningRate:this.learningRate,beta1:this.beta1,beta2:this.beta2,epsilon:this.epsilon,decay:this.decay}}static fromConfig(e,t){return new e(t.learningRate,t.beta1,t.beta2,t.epsilon,t.decay)}};Pp.className="Adamax";Ea(Pp);var mc=class extends Ra{constructor(e){super();this.learningRate=e,this.setLearningRate(e)}applyGradients(e){(Array.isArray(e)?e.map(n=>n.name):Object.keys(e)).forEach((n,r)=>{let s=Array.isArray(e)?e[r].tensor:e[n];if(s==null)return;let a=U.registeredVariables[n];Ue(()=>{let o=Me(fe(this.c,s),a);a.assign(o)})}),this.incrementIterations()}setLearningRate(e){this.learningRate=e,this.c!=null&&this.c.dispose(),this.c=Mk(ut(-e))}dispose(){this.c.dispose()}async getWeights(){return[await this.saveIterations()]}async setWeights(e){if(e=await this.extractIterations(e),e.length!==0)throw new Error("SGD optimizer does not have settable weights.")}getConfig(){return{learningRate:this.learningRate}}static fromConfig(e,t){return new e(t.learningRate)}};mc.className="SGD";Ea(mc);var zp=class extends mc{constructor(e,t,n=!1){super(e);this.learningRate=e,this.momentum=t,this.useNesterov=n,this.accumulations=[],this.m=ut(this.momentum)}applyGradients(e){(Array.isArray(e)?e.map(n=>n.name):Object.keys(e)).forEach((n,r)=>{let s=U.registeredVariables[n];if(this.accumulations[r]==null){let i=!1;this.accumulations[r]={originalName:`${n}/momentum`,variable:Ue(()=>Cr(s).variable(i))}}let a=this.accumulations[r].variable,o=Array.isArray(e)?e[r].tensor:e[n];o!=null&&Ue(()=>{let i,l=Me(fe(this.m,a),o);this.useNesterov?i=Me(fe(this.c,Me(o,fe(l,this.m))),s):i=Me(fe(this.c,l),s),a.assign(l),s.assign(i)})}),this.incrementIterations()}dispose(){this.m.dispose(),this.accumulations!=null&&Ve(this.accumulations.map(e=>e.variable))}setMomentum(e){this.momentum=e}async getWeights(){return[await this.saveIterations()].concat(this.accumulations.map(e=>({name:e.originalName,tensor:e.variable})))}async setWeights(e){e=await this.extractIterations(e);let t=!1;this.accumulations=e.map(n=>({originalName:n.name,variable:n.tensor.variable(t)}))}getConfig(){return{learningRate:this.learningRate,momentum:this.momentum,useNesterov:this.useNesterov}}static fromConfig(e,t){return new e(t.learningRate,t.momentum,t.useNesterov)}};zp.className="Momentum";Ea(zp);var Lp=class extends Ra{constructor(e,t=.9,n=0,r=null,s=!1){super();if(this.learningRate=e,this.decay=t,this.momentum=n,this.epsilon=r,this.accumulatedMeanSquares=[],this.accumulatedMoments=[],this.accumulatedMeanGrads=[],this.centered=s,r==null&&(this.epsilon=U.backend.epsilon()),e==null)throw new Error("learningRate for RMSPropOptimizer must be defined.")}applyGradients(e){(Array.isArray(e)?e.map(n=>n.name):Object.keys(e)).forEach((n,r)=>{let s=U.registeredVariables[n],a=!1;this.accumulatedMeanSquares[r]==null&&(this.accumulatedMeanSquares[r]={originalName:`${n}/rms`,variable:Ue(()=>Cr(s).variable(a))}),this.accumulatedMoments[r]==null&&(this.accumulatedMoments[r]={originalName:`${n}/momentum`,variable:Ue(()=>Cr(s).variable(a))}),this.accumulatedMeanGrads[r]==null&&this.centered&&(this.accumulatedMeanGrads[r]={originalName:`${n}/mg`,variable:Ue(()=>Cr(s).variable(a))});let o=Array.isArray(e)?e[r].tensor:e[n];if(o==null)return;let i=this.accumulatedMeanSquares[r].variable,l=this.accumulatedMoments[r].variable;Ue(()=>{let u=Me(fe(i,this.decay),fe(ns(o),1-this.decay));if(this.centered){let c=this.accumulatedMeanGrads[r].variable,d=Me(fe(c,this.decay),fe(o,1-this.decay)),h=Qe(fe(o,this.learningRate),na(He(u,Me(ns(d),this.epsilon)))),p=Me(fe(l,this.momentum),h);i.assign(u),c.assign(d),l.assign(p);let f=He(s,p);s.assign(f)}else{let c=Me(fe(i,this.decay),fe(ns(o),1-this.decay)),d=Me(fe(l,this.momentum),Qe(fe(o,this.learningRate),na(Me(c,this.epsilon))));i.assign(c),l.assign(d);let h=He(s,d);s.assign(h)}})}),this.incrementIterations()}dispose(){this.accumulatedMeanSquares!=null&&Ve(this.accumulatedMeanSquares.map(e=>e.variable)),this.accumulatedMeanGrads!=null&&this.centered&&Ve(this.accumulatedMeanGrads.map(e=>e.variable)),this.accumulatedMoments!=null&&Ve(this.accumulatedMoments.map(e=>e.variable))}async getWeights(){let e=[...this.accumulatedMeanSquares,...this.accumulatedMoments];return this.centered&&e.push(...this.accumulatedMeanGrads),[await this.saveIterations()].concat(e.map(t=>({name:t.originalName,tensor:t.variable})))}async setWeights(e){e=await this.extractIterations(e);let 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s=O(e,"labels","meanSquaredError"),a=O(t,"predictions","meanSquaredError"),o=null;n!=null&&(o=O(n,"weights","meanSquaredError")),rs(s.shape,a.shape,"Error in meanSquaredError: ");let i=l1(s,a);return Ua(i,o,r)}var Lwe=V({meanSquaredError_:GZ});function jZ(e,t){let n=O(e,"labels","sigmoidCrossEntropyWithLogits"),r=O(t,"logits","sigmoidCrossEntropyWithLogits");rs(n.shape,r.shape,"Error in sigmoidCrossEntropyWithLogits: ");let s=ua(r),a=K(r,n),o=UA(Kr(Kt(yn(r))));return pe(Ne(s,a),o)}function qZ(e,t,n,r=0,s=Yn.SUM_BY_NONZERO_WEIGHTS){let a=O(e,"multiClassLabels","sigmoidCrossEntropy"),o=O(t,"logits","sigmoidCrossEntropy"),i=null;if(n!=null&&(i=O(n,"weights","sigmoidCrossEntropy")),rs(a.shape,o.shape,"Error in sigmoidCrossEntropy: "),r>0){let u=Fe(r),c=Fe(1),d=Fe(.5);a=pe(K(a,Ne(c,u)),K(d,u))}let l=jZ(a,o);return Ua(l,i,s)}var Bwe=V({sigmoidCrossEntropy_:qZ});function KZ(e,t,n=-1){if(n===-1&&(n=t.rank-1),n!==t.rank-1)throw Error(`Softmax cross entropy along a non-last dimension is not yet 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QZ=V({sparseReshape_:JZ});function eY(e,t,n){let r=O(e,"data","sparseSegmentMean"),s=O(t,"indices","sparseSegmentMean"),a=O(n,"segmentIds","sparseSegmentMean");if(r.rank<1)throw new Error("Data should be at least 1 dimensional but received scalar");if(s.rank!==1)throw new Error(`Indices should be Tensor1D but received shape ${s.shape}`);if(a.rank!==1)throw new Error(`Segment ids should be Tensor1D but received shape ${a.shape}`);let o={data:r,indices:s,segmentIds:a};return G.runKernel(Yy,o)}var tY=V({sparseSegmentMean_:eY});function nY(e,t,n){let r=O(e,"data","sparseSegmentSum"),s=O(t,"indices","sparseSegmentSum"),a=O(n,"segmentIds","sparseSegmentSum");if(r.rank<1)throw new Error("Data should be at least 1 dimensional but received scalar");if(s.rank!==1)throw new Error(`Indices should be Tensor1D but received shape ${s.shape}`);if(a.rank!==1)throw new Error(`Segment ids should be Tensor1D but received shape ${a.shape}`);let o={data:r,indices:s,segmentIds:a};return G.runKernel(Jy,o)}var 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compiled before being used.");return this.model.evaluate(e,t,n)}async evaluateDataset(e,t){if(!this.built)throw new cs("The model needs to be compiled before being used.");return this.model.evaluateDataset(e,t)}predict(e,t={}){return this.model==null&&this.build(),this.model.predict(e,t)}predictOnBatch(e){return this.model==null&&this.build(),this.model.predictOnBatch(e)}compile(e){this.build(),this.model.compile(e),this.optimizer_=this.model.optimizer,this.isOptimizerOwned=this.model.isOptimizerOwned,this.loss=this.model.loss,this.metrics=this.model.metrics,this.metricsTensors=this.model.metricsTensors,this.metricsNames=this.model.metricsNames}get optimizer(){return this.model==null?void 0:this.model.optimizer}set optimizer(e){this.model.optimizer=e}async fit(e,t,n={}){if(!this.built)throw new cs("The model needs to be compiled before being used.");return this.model.fit(e,t,n)}async fitDataset(e,t){if(!this.built)throw new cs("The model needs to be compiled before being used.");return this.model.fitDataset(e,t)}async trainOnBatch(e,t){return this.model.trainOnBatch(e,t)}static fromConfig(e,t,n={},r=!1){let s,a={};if(t instanceof Array){if(t[0].className==null||t[0].className==="Merge")throw new q("Legacy serialization format not supported yet.");s=t}else k.assert(t.layers!=null,()=>"When the config data for a Sequential model is not an Array, it must be an Object that contains the 'layers' field."),s=t.layers,delete t.layers,a=t;let o=new e(a);if(!(o instanceof ix))throw new Ge(`Sequential.fromConfig called on non-Sequential input: ${o}`);for(let i of s){let u=fs(i,void 0,r);r&&u.setFastWeightInitDuringBuild(!0),o.add(u)}return o}set stopTraining(e){if(this.model==null)throw new q("Cannot set the stopTraining property of a sequential model before it is compiled.");this.model.stopTraining=e}get stopTraining(){if(this.model==null)throw new q("Cannot get the stopTraining property of a sequential model before it is compiled.");return this.model.stopTraining}getConfig(){let e=[];for(let t of this.layers){let n={};n.className=t.getClassName(),n.config=t.getConfig(),e.push(n)}return{name:this.name,layers:e}}},pm=ix;pm.className="Sequential";ce.registerClass(pm);function Wte(e){return new pa(e)}function Vte(e){return new pm(e)}function Ute(e,t){return t==null&&(t={}),zte(e,t)}function YS(e){return kS(e)}function Hte(e,t){q1.registerCallbackConstructor(e,t)}var er=class extends ce.Serializable{getConfig(){return{}}},JS=class extends er{apply(e,t=1){return gee(e,t)}};JS.className="elu";ce.registerClass(JS);var QS=class extends er{apply(e){return t1(e)}};QS.className="selu";ce.registerClass(QS);var e8=class extends er{apply(e){return ua(e)}};e8.className="relu";ce.registerClass(e8);var t8=class extends er{apply(e){return Z(()=>_d(6,ua(e)))}};t8.className="relu6";ce.registerClass(t8);var n8=class extends er{apply(e){return e}};n8.className="linear";ce.registerClass(n8);var r8=class extends er{apply(e){return Rs(e)}};r8.className="sigmoid";ce.registerClass(r8);var s8=class extends er{apply(e){return Aee(e)}};s8.className="hardSigmoid";ce.registerClass(s8);var a8=class extends er{apply(e){return Zl(e)}};a8.className="softplus";ce.registerClass(a8);var o8=class extends er{apply(e){return yee(e)}};o8.className="softsign";ce.registerClass(o8);var i8=class extends er{apply(e){return Kl(e)}};i8.className="tanh";ce.registerClass(i8);var lx=class extends er{apply(e,t=-1){return Of(e,t)}};lx.className="softmax";ce.registerClass(lx);var l8=class extends er{apply(e,t=-1){return HA(e,t)}};l8.className="logSoftmax";ce.registerClass(l8);var u8=class extends er{apply(e,t=1){return Z(()=>Rs(e.mul(t)).mul(e))}};u8.className="swish";ce.registerClass(u8);var c8=class extends er{apply(e){return Z(()=>K(e,Kl(Zl(e))))}};c8.className="mish";ce.registerClass(c8);function Xa(e){return e.getClassName()}function ux(e,t={}){return Md(e,ce.SerializationMap.getMap().classNameMap,t,"activation")}function Za(e){if(e==null){let t={};return t.className="linear",t.config={},ux(t)}if(typeof e=="string"){let t={};return t.className=e,t.config={},ux(t)}else return e instanceof er?e:ux(e)}function cx(e){if(e!=null&&typeof e!="object")throw new Error(`Argument to L1L2 regularizer's constructor is expected to be an object, but received: ${e}`)}var d8=class extends ce.Serializable{},jd=class extends d8{constructor(e){super();cx(e),this.l1=e==null||e.l1==null?.01:e.l1,this.l2=e==null||e.l2==null?.01:e.l2,this.hasL1=this.l1!==0,this.hasL2=this.l2!==0}apply(e){return Z(()=>{let t=un([1]);return this.hasL1&&(t=pe(t,_e(K(this.l1,yn(e))))),this.hasL2&&(t=pe(t,_e(K(this.l2,Bd(e))))),t.asScalar()})}getConfig(){return{l1:this.l1,l2:this.l2}}static fromConfig(e,t){return new e({l1:t.l1,l2:t.l2})}};jd.className="L1L2";ce.registerClass(jd);function Gte(e){return cx(e),new jd({l1:e!=null?e.l1:null,l2:0})}function jte(e){return cx(e),new jd({l2:e!=null?e.l2:null,l1:0})}var h8={l1l2:"L1L2"};function kt(e){return S1(e)}function p8(e,t={}){return Md(e,ce.SerializationMap.getMap().classNameMap,t,"regularizer")}function Lt(e){if(e==null)return null;if(typeof e=="string"){let n={className:e in h8?h8[e]:e,config:{}};return p8(n)}else return e instanceof d8?e:p8(e)}var dx=class extends st{constructor(e){super(e==null?{}:e);this.supportsMasking=!0,e!=null&&(this.maxValue=e.maxValue)}call(e,t){e=Ke(e);let n=ua(e);return this.maxValue!=null&&(n=cr(n,0,this.maxValue)),n}computeOutputShape(e){return e}getConfig(){let e={maxValue:this.maxValue},t=super.getConfig();return Object.assign(e,t),e}};dx.className="ReLU";ce.registerClass(dx);var hx=class extends st{constructor(e){super(e==null?{}:e);this.DEFAULT_ALPHA=.3,e==null&&(e={}),this.alpha=e.alpha==null?this.DEFAULT_ALPHA:e.alpha}call(e,t){let n=Ke(e);return Cf(n,this.alpha)}computeOutputShape(e){return e}getConfig(){let e={alpha:this.alpha},t=super.getConfig();return Object.assign(e,t),e}};hx.className="LeakyReLU";ce.registerClass(hx);var px=class extends st{constructor(e){super(e==null?{}:e);if(this.DEFAULT_ALPHA_INITIALIZER="zeros",e==null&&(e={}),this.supportsMasking=!0,this.alphaInitializer=zt(e.alphaInitializer||this.DEFAULT_ALPHA_INITIALIZER),this.alphaRegularizer=Lt(e.alphaRegularizer),this.alphaConstraint=hn(e.alphaConstraint),e.sharedAxes==null)this.sharedAxes=null;else if(Array.isArray(e.sharedAxes))this.sharedAxes=e.sharedAxes;else if(typeof e.sharedAxes=="number")this.sharedAxes=[e.sharedAxes];else throw new q(`Expected sharedAxes to be a number or an array of numbers, but got ${e.sharedAxes}`)}build(e){e=At(e);let t=e.slice(1);if(this.sharedAxes!=null)for(let r of this.sharedAxes)t[r-1]=1;this.alpha=this.addWeight("alpha",t,"float32",this.alphaInitializer,this.alphaRegularizer,!0,this.alphaConstraint);let n={};if(this.sharedAxes!=null)for(let r=1;r(Yt(t),t==="channelsFirst"?pt(e,[0,2,3,1]):e))}function f8(e,t){return Z(()=>(Yt(t),t==="channelsFirst"?pt(e,[0,2,3,4,1]):e))}function qte(e,t,n,r=1,s="valid",a,o=1){return Z(()=>{if(a==null&&(a=us()),Yt(a),e.shape.length!==3)throw new q(`The input of a conv1dWithBias operation should be 3, but is ${e.shape.length} instead.`);if(t.shape.length!==3)throw new q(`The kernel for a conv1dWithBias operation should be 3, but is ${t.shape.length} instead`);if(n!=null&&n.shape.length!==1)throw new q(`The bias for a conv1dWithBias operation should be 1, but is ${t.shape.length} instead`);if(a==="channelsFirst"&&(e=pt(e,[0,2,1])),s==="causal")throw new Ge("The support for CAUSAL padding mode in conv1dWithBias is not implemented yet.");let i=OA(e,t,r,s==="same"?"same":"valid","NWC",o);return n!=null&&(i=hs(i,n)),i})}function m8(e,t,n,r=[1,1],s="valid",a,o,i=null){return Z(()=>{if(a==null&&(a=us()),Yt(a),e.rank!==3&&e.rank!==4)throw new q(`conv2dWithBiasActivation expects input to be of rank 3 or 4, but received ${e.rank}.`);if(t.rank!==3&&t.rank!==4)throw new q(`conv2dWithBiasActivation expects kernel to be of rank 3 or 4, but received ${e.rank}.`);let l=yx(e,a);if(s==="causal")throw new Ge("The support for CAUSAL padding mode in conv1dWithBias is not implemented yet.");return l=ti.conv2d({x:l,filter:t,strides:r,pad:s==="same"?"same":"valid",dilations:o,dataFormat:"NHWC",bias:n,activation:i}),a==="channelsFirst"&&(l=pt(l,[0,3,1,2])),l})}function Kte(e,t,n,r=[1,1,1],s="valid",a,o){return Z(()=>{if(a==null&&(a=us()),Yt(a),e.rank!==4&&e.rank!==5)throw new q(`conv3dWithBias expects input to be of rank 4 or 5, but received ${e.rank}.`);if(t.rank!==4&&t.rank!==5)throw new q(`conv3dWithBias expects kernel to be of rank 4 or 5, but received ${e.rank}.`);let i=f8(e,a);if(s==="causal")throw new Ge("The support for CAUSAL padding mode in conv3dWithBias is not implemented yet.");return i=nI(i,t,r,s==="same"?"same":"valid","NDHWC",o),n!=null&&(i=hs(i,n)),a==="channelsFirst"&&(i=pt(i,[0,4,1,2,3])),i})}var Ax=class extends st{constructor(e,t){super(t);if(this.bias=null,this.DEFAULT_KERNEL_INITIALIZER="glorotNormal",this.DEFAULT_BIAS_INITIALIZER="zeros",Ax.verifyArgs(t),this.rank=e,An(this.rank,"rank"),this.rank!==1&&this.rank!==2&&this.rank!==3)throw new Ge(`Convolution layer for rank other than 1, 2, or 3 (${this.rank}) is not implemented yet.`);if(this.kernelSize=iu(t.kernelSize,e,"kernelSize"),this.strides=iu(t.strides==null?1:t.strides,e,"strides"),this.padding=t.padding==null?"valid":t.padding,Or(this.padding),this.dataFormat=t.dataFormat==null?"channelsLast":t.dataFormat,Yt(this.dataFormat),this.activation=Za(t.activation),this.useBias=t.useBias==null?!0:t.useBias,this.biasInitializer=zt(t.biasInitializer||this.DEFAULT_BIAS_INITIALIZER),this.biasConstraint=hn(t.biasConstraint),this.biasRegularizer=Lt(t.biasRegularizer),this.activityRegularizer=Lt(t.activityRegularizer),this.dilationRate=iu(t.dilationRate==null?1:t.dilationRate,e,"dilationRate"),this.rank===1&&Array.isArray(this.dilationRate)&&this.dilationRate.length!==1)throw new q(`dilationRate must be a number or an array of a single number for 1D convolution, but received ${JSON.stringify(this.dilationRate)}`);if(this.rank===2){if(typeof this.dilationRate=="number")this.dilationRate=[this.dilationRate,this.dilationRate];else if(this.dilationRate.length!==2)throw new q(`dilationRate must be a number or array of two numbers for 2D convolution, but received ${JSON.stringify(this.dilationRate)}`)}else if(this.rank===3){if(typeof this.dilationRate=="number")this.dilationRate=[this.dilationRate,this.dilationRate,this.dilationRate];else if(this.dilationRate.length!==3)throw new q(`dilationRate must be a number or array of three numbers for 3D convolution, but received ${JSON.stringify(this.dilationRate)}`)}}static verifyArgs(e){if(Ds("kernelSize"in e,"required key 'kernelSize' not in config"),typeof e.kernelSize!="number"&&!N1(e.kernelSize,"number",1,3))throw new q(`BaseConv expects config.kernelSize to be number or number[] with length 1, 2, or 3, but received ${JSON.stringify(e.kernelSize)}.`)}getConfig(){let e={kernelSize:this.kernelSize,strides:this.strides,padding:this.padding,dataFormat:this.dataFormat,dilationRate:this.dilationRate,activation:Xa(this.activation),useBias:this.useBias,biasInitializer:Ht(this.biasInitializer),biasRegularizer:kt(this.biasRegularizer),activityRegularizer:kt(this.activityRegularizer),biasConstraint:dn(this.biasConstraint)},t=super.getConfig();return Object.assign(e,t),e}},qd=class extends Ax{constructor(e,t){super(e,t);this.kernel=null,qd.verifyArgs(t),this.filters=t.filters,An(this.filters,"filters"),this.kernelInitializer=zt(t.kernelInitializer||this.DEFAULT_KERNEL_INITIALIZER),this.kernelConstraint=hn(t.kernelConstraint),this.kernelRegularizer=Lt(t.kernelRegularizer)}build(e){e=At(e);let t=this.dataFormat==="channelsFirst"?1:e.length-1;if(e[t]==null)throw new q(`The channel dimension of the input should be defined. 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Found `None`.");let n=e[t],r=this.kernelSize.concat([this.filters,n]);this.kernel=this.addWeight("kernel",r,"float32",this.kernelInitializer,this.kernelRegularizer,!0,this.kernelConstraint),this.useBias&&(this.bias=this.addWeight("bias",[this.filters],"float32",this.biasInitializer,this.biasRegularizer,!0,this.biasConstraint)),this.inputSpec=[new tn({ndim:5,axes:{[t]:n}})],this.built=!0}call(e,t){return Z(()=>{let n=Ke(e);if(n.shape.length!==5)throw new q(`Conv3DTranspose.call() expects input tensor to be rank-4, but received a tensor of rank-${n.shape.length}`);let r=n.shape,s=r[0],a,o,i;this.dataFormat==="channelsFirst"?(i=2,a=3,o=4):(i=1,a=2,o=3);let l=r[i],u=r[a],c=r[o],d=this.kernelSize[0],h=this.kernelSize[1],p=this.kernelSize[2],f=this.strides[0],m=this.strides[1],g=this.strides[2],y=Ps(l,f,d,this.padding),A=Ps(u,m,h,this.padding),x=Ps(c,g,p,this.padding),b=[s,y,A,x,this.filters];this.dataFormat!=="channelsLast"&&(n=pt(n,[0,2,3,4,1]));let v=Zj(n,this.kernel.read(),b,this.strides,this.padding);return this.dataFormat!=="channelsLast"&&(v=pt(v,[0,4,1,2,3])),this.bias!==null&&(v=hs(v,this.bias.read(),this.dataFormat)),this.activation!==null&&(v=this.activation.apply(v)),v})}computeOutputShape(e){e=At(e);let t=e.slice(),n,r,s,a;this.dataFormat==="channelsFirst"?(n=1,r=2,s=3,a=4):(n=4,r=1,s=2,a=3);let o=this.kernelSize[0],i=this.kernelSize[1],l=this.kernelSize[2],u=this.strides[0],c=this.strides[1],d=this.strides[2];return t[n]=this.filters,t[r]=Ps(t[r],u,o,this.padding),t[s]=Ps(t[s],c,i,this.padding),t[a]=Ps(t[a],d,l,this.padding),t}getConfig(){let e=super.getConfig();return delete e.dilationRate,e}};bx.className="Conv3DTranspose";ce.registerClass(bx);var A8=class extends qd{constructor(e,t){super(e,t);if(this.DEFAULT_DEPTHWISE_INITIALIZER="glorotUniform",this.DEFAULT_POINTWISE_INITIALIZER="glorotUniform",this.depthwiseKernel=null,this.pointwiseKernel=null,t.filters==null)throw new q("The `filters` configuration field is required by SeparableConv, but is unspecified.");if(t.kernelInitializer!=null||t.kernelRegularizer!=null||t.kernelConstraint!=null)throw new q("Fields kernelInitializer, kernelRegularizer and kernelConstraint are invalid for SeparableConv2D. Use depthwiseInitializer, depthwiseRegularizer, depthwiseConstraint, pointwiseInitializer, pointwiseRegularizer and pointwiseConstraint instead.");if(t.padding!=null&&t.padding!=="same"&&t.padding!=="valid")throw new q(`SeparableConv${this.rank}D supports only padding modes: 'same' and 'valid', but received ${JSON.stringify(t.padding)}`);this.depthMultiplier=t.depthMultiplier==null?1:t.depthMultiplier,this.depthwiseInitializer=zt(t.depthwiseInitializer||this.DEFAULT_DEPTHWISE_INITIALIZER),this.depthwiseRegularizer=Lt(t.depthwiseRegularizer),this.depthwiseConstraint=hn(t.depthwiseConstraint),this.pointwiseInitializer=zt(t.depthwiseInitializer||this.DEFAULT_POINTWISE_INITIALIZER),this.pointwiseRegularizer=Lt(t.pointwiseRegularizer),this.pointwiseConstraint=hn(t.pointwiseConstraint)}build(e){if(e=At(e),e.length{e=Ke(e);let n;if(this.rank===1)throw new Ge("1D separable convolution is not implemented yet.");return this.rank===2&&(this.dataFormat==="channelsFirst"&&(e=pt(e,[0,2,3,1])),n=bI(e,this.depthwiseKernel.read(),this.pointwiseKernel.read(),this.strides,this.padding,this.dilationRate,"NHWC")),this.useBias&&(n=hs(n,this.bias.read(),this.dataFormat)),this.activation!=null&&(n=this.activation.apply(n)),this.dataFormat==="channelsFirst"&&(n=pt(n,[0,3,1,2])),n})}getConfig(){let e=super.getConfig();return delete e.rank,delete e.kernelInitializer,delete e.kernelRegularizer,delete e.kernelConstraint,e.depthwiseInitializer=Ht(this.depthwiseInitializer),e.pointwiseInitializer=Ht(this.pointwiseInitializer),e.depthwiseRegularizer=kt(this.depthwiseRegularizer),e.pointwiseRegularizer=kt(this.pointwiseRegularizer),e.depthwiseConstraint=dn(this.depthwiseConstraint),e.pointwiseConstraint=dn(this.pointwiseConstraint),e}};A8.className="SeparableConv";var vx=class extends A8{constructor(e){super(2,e)}};vx.className="SeparableConv2D";ce.registerClass(vx);var x8=class extends qd{constructor(e){super(1,e);x8.verifyArgs(e),this.inputSpec=[{ndim:3}]}getConfig(){let e=super.getConfig();return delete e.rank,delete e.dataFormat,e}static verifyArgs(e){if(typeof e.kernelSize!="number"&&!N1(e.kernelSize,"number",1,1))throw new q(`Conv1D expects config.kernelSize to be number or number[] with length 1, but received ${JSON.stringify(e.kernelSize)}.`)}},wx=x8;wx.className="Conv1D";ce.registerClass(wx);var kx=class extends st{constructor(e){super(e);typeof e.cropping=="number"?this.cropping=[[e.cropping,e.cropping],[e.cropping,e.cropping]]:typeof e.cropping[0]=="number"?this.cropping=[[e.cropping[0],e.cropping[0]],[e.cropping[1],e.cropping[1]]]:this.cropping=e.cropping,this.dataFormat=e.dataFormat===void 0?"channelsLast":e.dataFormat,this.inputSpec=[{ndim:4}]}computeOutputShape(e){return this.dataFormat==="channelsFirst"?[e[0],e[1],e[2]-this.cropping[0][0]-this.cropping[0][1],e[3]-this.cropping[1][0]-this.cropping[1][1]]:[e[0],e[1]-this.cropping[0][0]-this.cropping[0][1],e[2]-this.cropping[1][0]-this.cropping[1][1],e[3]]}call(e,t){return Z(()=>{if(e=Ke(e),this.dataFormat==="channelsLast"){let n=Gf(e,this.cropping[0][0],e.shape[1]-this.cropping[0][0]-this.cropping[0][1],2);return Gf(n,this.cropping[1][0],e.shape[2]-this.cropping[1][1]-this.cropping[1][0],3)}else{let n=Gf(e,this.cropping[0][0],e.shape[2]-this.cropping[0][0]-this.cropping[0][1],3);return Gf(n,this.cropping[1][0],e.shape[3]-this.cropping[1][1]-this.cropping[1][0],4)}})}getConfig(){let e={cropping:this.cropping,dataFormat:this.dataFormat},t=super.getConfig();return Object.assign(e,t),e}};kx.className="Cropping2D";ce.registerClass(kx);var Ix=class extends st{constructor(e){super(e);this.DEFAULT_SIZE=[2,2],this.inputSpec=[{ndim:4}],this.size=e.size==null?this.DEFAULT_SIZE:e.size,this.dataFormat=e.dataFormat==null?"channelsLast":e.dataFormat,Yt(this.dataFormat),this.interpolation=e.interpolation==null?"nearest":e.interpolation,uee(this.interpolation)}computeOutputShape(e){if(this.dataFormat==="channelsFirst"){let t=e[2]==null?null:this.size[0]*e[2],n=e[3]==null?null:this.size[1]*e[3];return[e[0],e[1],t,n]}else{let t=e[1]==null?null:this.size[0]*e[1],n=e[2]==null?null:this.size[1]*e[2];return[e[0],t,n,e[3]]}}call(e,t){return Z(()=>{let n=Ke(e),r=n.shape;if(this.dataFormat==="channelsFirst"){n=pt(n,[0,2,3,1]);let s=this.size[0]*r[2],a=this.size[1]*r[3],o=this.interpolation==="nearest"?n.resizeNearestNeighbor([s,a]):n.resizeBilinear([s,a]);return pt(o,[0,3,1,2])}else{let s=this.size[0]*r[1],a=this.size[1]*r[2];return this.interpolation==="nearest"?n.resizeNearestNeighbor([s,a]):n.resizeBilinear([s,a])}})}getConfig(){let e={size:this.size,dataFormat:this.dataFormat},t=super.getConfig();return Object.assign(e,t),e}};Ix.className="UpSampling2D";ce.registerClass(Ix);function Xte(e,t,n=[1,1],r="valid",s,a){return Z(()=>{s==null&&(s=us()),Yt(s);let o=yx(e,s);if(e.rank!==4)throw new q(`Input for depthwiseConv2d is required to be 4-D, but is instead ${e.rank}-D`);if(t.rank!==4)throw new q(`depthwiseKernel is required to be 4-D, but is instead ${t.rank}-D`);return o=Td(o,t,n,r==="same"?"same":"valid","NHWC",a),s==="channelsFirst"&&(o=pt(o,[0,3,1,2])),o})}var Sx=class extends Ax{constructor(e){super(2,e);this.depthwiseKernel=null,this.depthMultiplier=e.depthMultiplier==null?1:e.depthMultiplier,this.depthwiseInitializer=zt(e.depthwiseInitializer||this.DEFAULT_KERNEL_INITIALIZER),this.depthwiseConstraint=hn(e.depthwiseConstraint),this.depthwiseRegularizer=Lt(e.depthwiseRegularizer)}build(e){if(e=At(e),e.length<4)throw new q(`Inputs to DepthwiseConv2D should have rank 4. Received input shape: ${JSON.stringify(e)}.`);let t=this.dataFormat==="channelsFirst"?1:3;if(e[t]==null||e[t]<0)throw new q(`The channel dimension of the inputs to DepthwiseConv2D should be defined, but is not (${e[t]}).`);let n=e[t],r=[this.kernelSize[0],this.kernelSize[1],n,this.depthMultiplier];this.depthwiseKernel=this.addWeight("depthwise_kernel",r,null,this.depthwiseInitializer,this.depthwiseRegularizer,!0,this.depthwiseConstraint),this.useBias?this.bias=this.addWeight("bias",[n*this.depthMultiplier],null,this.biasInitializer,this.biasRegularizer,!0,this.biasConstraint):this.bias=null,this.built=!0}call(e,t){return Z(()=>{e=Ke(e);let n=Xte(e,this.depthwiseKernel.read(),this.strides,this.padding,this.dataFormat,null);return this.useBias&&(n=hs(n,this.bias.read(),this.dataFormat)),this.activation!=null&&(n=this.activation.apply(n)),n})}computeOutputShape(e){e=At(e);let t=this.dataFormat==="channelsFirst"?e[2]:e[1],n=this.dataFormat==="channelsFirst"?e[3]:e[2],r=this.dataFormat==="channelsFirst"?e[1]*this.depthMultiplier:e[3]*this.depthMultiplier,s=ms(t,this.kernelSize[0],this.padding,this.strides[0]),a=ms(n,this.kernelSize[1],this.padding,this.strides[1]);return this.dataFormat==="channelsFirst"?[e[0],r,s,a]:[e[0],s,a,r]}getConfig(){let e=super.getConfig();return e.depthMultiplier=this.depthMultiplier,e.depthwiseInitializer=Ht(this.depthwiseInitializer),e.depthwiseRegularizer=kt(this.depthwiseRegularizer),e.depthwiseConstraint=dn(this.depthwiseRegularizer),e}};Sx.className="DepthwiseConv2D";ce.registerClass(Sx);function b8(e,t,n,r){if(Array.isArray(e)){if(t!=null||n!=null)throw new q("When inputs is an array, neither initialState or constants should be provided");r!=null&&(n=e.slice(e.length-r,e.length),e=e.slice(0,e.length-r)),e.length>1&&(t=e.slice(1,e.length)),e=e[0]}function s(a){return a==null||Array.isArray(a)?a:[a]}return t=s(t),n=s(n),{inputs:e,initialState:t,constants:n}}function v8(e,t,n,r=!1,s,a,o=!1,i=!1){return Z(()=>{let l=t.shape.length;if(l<3)throw new q(`Input should be at least 3D, but is ${l}D.`);let u=[1,0].concat(ds(2,l));if(t=pt(t,u),a!=null)throw new Ge("The rnn() functoin of the deeplearn.js backend does not support constants yet.");o&&console.warn("Backend rnn(): the unroll = true option is not applicable to the imperative deeplearn.js backend."),s!=null&&(s=s.asType("bool").asType("float32"),s.rank===l-1&&(s=$r(s,-1)),s=pt(s,u)),r&&(t=Fr(t,0),s!=null&&(s=Fr(s,0)));let c=[],d,h=n,p=t.shape[0],f=ls(t),m;s!=null&&(m=ls(s));for(let y=0;ye(A,h));if(s==null)d=x[0],h=x[1];else{let b=Z(()=>{let v=m[y],w=Dr(v).sub(v),I=x[0].mul(v).add(h[0].mul(w)),T=h.map((C,M)=>x[1][M].mul(v).add(C.mul(w)));return{output:I,newStates:T}});d=b.output,h=b.newStates}i&&c.push(d)}let g;return i&&(g=Mr(c,1)),[d,g,h]})}var w8=class extends st{constructor(e){super(e);let t;if(e.cell==null)throw new q("cell property is missing for the constructor of RNN.");if(Array.isArray(e.cell)?t=new Am({cells:e.cell}):t=e.cell,t.stateSize==null)throw new q("The RNN cell should have an attribute `stateSize` (tuple of integers, one integer per RNN state).");this.cell=t,this.returnSequences=e.returnSequences==null?!1:e.returnSequences,this.returnState=e.returnState==null?!1:e.returnState,this.goBackwards=e.goBackwards==null?!1:e.goBackwards,this._stateful=e.stateful==null?!1:e.stateful,this.unroll=e.unroll==null?!1:e.unroll,this.supportsMasking=!0,this.inputSpec=[new tn({ndim:3})],this.stateSpec=null,this.states_=null,this.numConstants=null,this.keptStates=[]}getStates(){if(this.states_==null){let e=Array.isArray(this.cell.stateSize)?this.cell.stateSize.length:1;return ds(0,e).map(t=>null)}else return this.states_}setStates(e){this.states_=e}computeOutputShape(e){H1(e)&&(e=e[0]),e=e;let t=this.cell.stateSize;Array.isArray(t)||(t=[t]);let n=t[0],r;if(this.returnSequences?r=[e[0],e[1],n]:r=[e[0],n],this.returnState){let s=[];for(let a of t)s.push([e[0],a]);return[r].concat(s)}else return r}computeMask(e,t){return Z(()=>{Array.isArray(t)&&(t=t[0]);let n=this.returnSequences?t:null;if(this.returnState){let r=this.states.map(s=>null);return[n].concat(r)}else return n})}get states(){if(this.states_==null){let e=Array.isArray(this.cell.stateSize)?this.cell.stateSize.length:1,t=[];for(let n=0;no.shape[o.shape.length-1]),a))throw new q(`An initialState was passed that is not compatible with cell.stateSize. Received stateSpec=${this.stateSpec}; However cell.stateSize is ${this.cell.stateSize}`)}else this.stateSpec=a.map(o=>new tn({shape:[null,o]}));this.stateful&&this.resetStates()}resetStates(e,t=!1){Z(()=>{if(!this.stateful)throw new da("Cannot call resetStates() on an RNN Layer that is not stateful.");let n=this.inputSpec[0].shape[0];if(n==null)throw new q("If an RNN is stateful, it needs to know its batch size. Specify the batch size of your input tensors: \n- If using a Sequential model, specify the batch size by passing a `batchInputShape` option to your first layer.\n- If using the functional API, specify the batch size by passing a `batchShape` option to your Input layer.");if(this.states_==null)Array.isArray(this.cell.stateSize)?this.states_=this.cell.stateSize.map(r=>un([n,r])):this.states_=[un([n,this.cell.stateSize])];else if(e==null)je(this.states_),this.keptStates!=null&&(je(this.keptStates),this.keptStates=[]),Array.isArray(this.cell.stateSize)?this.states_=this.cell.stateSize.map(r=>un([n,r])):this.states_[0]=un([n,this.cell.stateSize]);else{if(Array.isArray(e)||(e=[e]),e.length!==this.states_.length)throw new q(`Layer ${this.name} expects ${this.states_.length} state(s), but it received ${e.length} state value(s). Input received: ${e}`);t===!0?this.keptStates.push(this.states_.slice()):je(this.states_);for(let r=0;rSn(r.clone()))})}apply(e,t){let n=t==null?null:t.initialState,r=t==null?null:t.constants;t==null&&(t={});let s=b8(e,n,r,this.numConstants);e=s.inputs,n=s.initialState,r=s.constants;let a=[],o=[];if(n!=null){t.initialState=n,a=a.concat(n),this.stateSpec=[];for(let l of n)this.stateSpec.push(new tn({shape:l.shape}));o=o.concat(this.stateSpec)}if(r!=null&&(t.constants=r,a=a.concat(r),this.numConstants=r.length),a[0]instanceof ps){let l=[e].concat(a),u=this.inputSpec.concat(o),c=this.inputSpec;this.inputSpec=u;let d=super.apply(l,t);return this.inputSpec=c,d}else return super.apply(e,t)}call(e,t){return Z(()=>{let n=t==null?null:t.mask,r=t==null?null:t.training,s=t==null?null:t.initialState;e=Ke(e),s==null&&(this.stateful?s=this.states_:s=this.getInitialState(e));let a=Array.isArray(this.cell.stateSize)?this.cell.stateSize.length:1;if(s.length!==a)throw new q(`RNN Layer has ${a} state(s) but was passed ${s.length} initial state(s).`);this.unroll&&console.warn("Ignoring unroll = true for RNN layer, due to imperative backend.");let o={training:r},l=v8((p,f)=>{let m=this.cell.call([p].concat(f),o);return[m[0],m.slice(1)]},e,s,this.goBackwards,n,null,this.unroll,this.returnSequences),u=l[0],c=l[1],d=l[2];this.stateful&&this.resetStates(d,r);let h=this.returnSequences?c:u;return this.returnState?[h].concat(d):h})}getInitialState(e){return Z(()=>{let t=un(e.shape);return t=_e(t,[1,2]),t=Ld(t),Array.isArray(this.cell.stateSize)?this.cell.stateSize.map(n=>n>1?M1(t,[1,n]):t):this.cell.stateSize>1?[M1(t,[1,this.cell.stateSize])]:[t]})}get trainableWeights(){return this.trainable?this.cell.trainableWeights:[]}get nonTrainableWeights(){return this.trainable?this.cell.nonTrainableWeights:this.cell.weights}setFastWeightInitDuringBuild(e){super.setFastWeightInitDuringBuild(e),this.cell!=null&&this.cell.setFastWeightInitDuringBuild(e)}getConfig(){let e=super.getConfig(),t={returnSequences:this.returnSequences,returnState:this.returnState,goBackwards:this.goBackwards,stateful:this.stateful,unroll:this.unroll};this.numConstants!=null&&(t.numConstants=this.numConstants);let n=this.cell.getConfig();return this.getClassName()===w8.className&&(t.cell={className:this.cell.getClassName(),config:n}),{...n,...e,...t}}static fromConfig(e,t,n={}){let r=t.cell,s=fs(r,n);return new e(Object.assign(t,{cell:s}))}},fa=w8;fa.className="RNN";ce.registerClass(fa);var Kd=class extends st{},gm=class extends Kd{constructor(e){super(e);this.DEFAULT_ACTIVATION="tanh",this.DEFAULT_KERNEL_INITIALIZER="glorotNormal",this.DEFAULT_RECURRENT_INITIALIZER="orthogonal",this.DEFAULT_BIAS_INITIALIZER="zeros",this.units=e.units,An(this.units,"units"),this.activation=Za(e.activation==null?this.DEFAULT_ACTIVATION:e.activation),this.useBias=e.useBias==null?!0:e.useBias,this.kernelInitializer=zt(e.kernelInitializer||this.DEFAULT_KERNEL_INITIALIZER),this.recurrentInitializer=zt(e.recurrentInitializer||this.DEFAULT_RECURRENT_INITIALIZER),this.biasInitializer=zt(e.biasInitializer||this.DEFAULT_BIAS_INITIALIZER),this.kernelRegularizer=Lt(e.kernelRegularizer),this.recurrentRegularizer=Lt(e.recurrentRegularizer),this.biasRegularizer=Lt(e.biasRegularizer),this.kernelConstraint=hn(e.kernelConstraint),this.recurrentConstraint=hn(e.recurrentConstraint),this.biasConstraint=hn(e.biasConstraint),this.dropout=ru([1,qa([0,e.dropout==null?0:e.dropout])]),this.recurrentDropout=ru([1,qa([0,e.recurrentDropout==null?0:e.recurrentDropout])]),this.stateSize=this.units,this.dropoutMask=null,this.recurrentDropoutMask=null}build(e){e=At(e),this.kernel=this.addWeight("kernel",[e[e.length-1],this.units],null,this.kernelInitializer,this.kernelRegularizer,!0,this.kernelConstraint),this.recurrentKernel=this.addWeight("recurrent_kernel",[this.units,this.units],null,this.recurrentInitializer,this.recurrentRegularizer,!0,this.recurrentConstraint),this.useBias?this.bias=this.addWeight("bias",[this.units],null,this.biasInitializer,this.biasRegularizer,!0,this.biasConstraint):this.bias=null,this.built=!0}call(e,t){return Z(()=>{if(e=e,e.length!==2)throw new q(`SimpleRNNCell expects 2 input Tensors, got ${e.length}.`);let n=e[1];e=e[0];let r=t.training==null?!1:t.training;0Dr(e),rate:this.dropout,training:r})),0Dr(n),rate:this.recurrentDropout,training:r}));let s,a=this.dropoutMask,o=this.recurrentDropoutMask;a!=null?s=Fs(K(e,a),this.kernel.read()):s=Fs(e,this.kernel.read()),this.bias!=null&&(s=hs(s,this.bias.read())),o!=null&&(n=K(n,o));let i=pe(s,Fs(n,this.recurrentKernel.read()));return this.activation!=null&&(i=this.activation.apply(i)),[i,i]})}getConfig(){let e=super.getConfig(),t={units:this.units,activation:Xa(this.activation),useBias:this.useBias,kernelInitializer:Ht(this.kernelInitializer),recurrentInitializer:Ht(this.recurrentInitializer),biasInitializer:Ht(this.biasInitializer),kernelRegularizer:kt(this.kernelRegularizer),recurrentRegularizer:kt(this.recurrentRegularizer),biasRegularizer:kt(this.biasRegularizer),activityRegularizer:kt(this.activityRegularizer),kernelConstraint:dn(this.kernelConstraint),recurrentConstraint:dn(this.recurrentConstraint),biasConstraint:dn(this.biasConstraint),dropout:this.dropout,recurrentDropout:this.recurrentDropout};return{...e,...t}}};gm.className="SimpleRNNCell";ce.registerClass(gm);var Tx=class extends fa{constructor(e){e.cell=new gm(e),super(e)}call(e,t){return Z(()=>{this.cell.dropoutMask!=null&&(je(this.cell.dropoutMask),this.cell.dropoutMask=null),this.cell.recurrentDropoutMask!=null&&(je(this.cell.recurrentDropoutMask),this.cell.recurrentDropoutMask=null);let n=t==null?null:t.mask,r=t==null?null:t.training,s=t==null?null:t.initialState;return super.call(e,{mask:n,training:r,initialState:s})})}static fromConfig(e,t){return new e(t)}};Tx.className="SimpleRNN";ce.registerClass(Tx);var ym=class extends Kd{constructor(e){super(e);if(this.DEFAULT_ACTIVATION="tanh",this.DEFAULT_RECURRENT_ACTIVATION="hardSigmoid",this.DEFAULT_KERNEL_INITIALIZER="glorotNormal",this.DEFAULT_RECURRENT_INITIALIZER="orthogonal",this.DEFAULT_BIAS_INITIALIZER="zeros",e.resetAfter)throw new q("GRUCell does not support reset_after parameter set to true.");this.units=e.units,An(this.units,"units"),this.activation=Za(e.activation===void 0?this.DEFAULT_ACTIVATION:e.activation),this.recurrentActivation=Za(e.recurrentActivation===void 0?this.DEFAULT_RECURRENT_ACTIVATION:e.recurrentActivation),this.useBias=e.useBias==null?!0:e.useBias,this.kernelInitializer=zt(e.kernelInitializer||this.DEFAULT_KERNEL_INITIALIZER),this.recurrentInitializer=zt(e.recurrentInitializer||this.DEFAULT_RECURRENT_INITIALIZER),this.biasInitializer=zt(e.biasInitializer||this.DEFAULT_BIAS_INITIALIZER),this.kernelRegularizer=Lt(e.kernelRegularizer),this.recurrentRegularizer=Lt(e.recurrentRegularizer),this.biasRegularizer=Lt(e.biasRegularizer),this.kernelConstraint=hn(e.kernelConstraint),this.recurrentConstraint=hn(e.recurrentConstraint),this.biasConstraint=hn(e.biasConstraint),this.dropout=ru([1,qa([0,e.dropout==null?0:e.dropout])]),this.recurrentDropout=ru([1,qa([0,e.recurrentDropout==null?0:e.recurrentDropout])]),this.implementation=e.implementation,this.stateSize=this.units,this.dropoutMask=null,this.recurrentDropoutMask=null}build(e){e=At(e);let t=e[e.length-1];this.kernel=this.addWeight("kernel",[t,this.units*3],null,this.kernelInitializer,this.kernelRegularizer,!0,this.kernelConstraint),this.recurrentKernel=this.addWeight("recurrent_kernel",[this.units,this.units*3],null,this.recurrentInitializer,this.recurrentRegularizer,!0,this.recurrentConstraint),this.useBias?this.bias=this.addWeight("bias",[this.units*3],null,this.biasInitializer,this.biasRegularizer,!0,this.biasConstraint):this.bias=null,this.built=!0}call(e,t){return Z(()=>{if(e=e,e.length!==2)throw new q(`GRUCell expects 2 input Tensors (inputs, h, c), got ${e.length}.`);let n=t.training==null?!1:t.training,r=e[1];e=e[0],0Dr(e),rate:this.dropout,training:n,count:3})),0Dr(r),rate:this.recurrentDropout,training:n,count:3}));let s=this.dropoutMask,a=this.recurrentDropoutMask,o,i,l;0{this.cell.dropoutMask!=null&&(je(this.cell.dropoutMask),this.cell.dropoutMask=null),this.cell.recurrentDropoutMask!=null&&(je(this.cell.recurrentDropoutMask),this.cell.recurrentDropoutMask=null);let n=t==null?null:t.mask,r=t==null?null:t.training,s=t==null?null:t.initialState;return super.call(e,{mask:n,training:r,initialState:s})})}static fromConfig(e,t){return t.implmentation===0&&(t.implementation=1),new e(t)}};Nx.className="GRU";ce.registerClass(Nx);var Xd=class extends Kd{constructor(e){super(e);this.DEFAULT_ACTIVATION="tanh",this.DEFAULT_RECURRENT_ACTIVATION="hardSigmoid",this.DEFAULT_KERNEL_INITIALIZER="glorotNormal",this.DEFAULT_RECURRENT_INITIALIZER="orthogonal",this.DEFAULT_BIAS_INITIALIZER="zeros",this.units=e.units,An(this.units,"units"),this.activation=Za(e.activation===void 0?this.DEFAULT_ACTIVATION:e.activation),this.recurrentActivation=Za(e.recurrentActivation===void 0?this.DEFAULT_RECURRENT_ACTIVATION:e.recurrentActivation),this.useBias=e.useBias==null?!0:e.useBias,this.kernelInitializer=zt(e.kernelInitializer||this.DEFAULT_KERNEL_INITIALIZER),this.recurrentInitializer=zt(e.recurrentInitializer||this.DEFAULT_RECURRENT_INITIALIZER),this.biasInitializer=zt(e.biasInitializer||this.DEFAULT_BIAS_INITIALIZER),this.unitForgetBias=e.unitForgetBias,this.kernelRegularizer=Lt(e.kernelRegularizer),this.recurrentRegularizer=Lt(e.recurrentRegularizer),this.biasRegularizer=Lt(e.biasRegularizer),this.kernelConstraint=hn(e.kernelConstraint),this.recurrentConstraint=hn(e.recurrentConstraint),this.biasConstraint=hn(e.biasConstraint),this.dropout=ru([1,qa([0,e.dropout==null?0:e.dropout])]),this.recurrentDropout=ru([1,qa([0,e.recurrentDropout==null?0:e.recurrentDropout])]),this.implementation=e.implementation,this.stateSize=[this.units,this.units],this.dropoutMask=null,this.recurrentDropoutMask=null}build(e){var t;e=At(e);let n=e[e.length-1];this.kernel=this.addWeight("kernel",[n,this.units*4],null,this.kernelInitializer,this.kernelRegularizer,!0,this.kernelConstraint),this.recurrentKernel=this.addWeight("recurrent_kernel",[this.units,this.units*4],null,this.recurrentInitializer,this.recurrentRegularizer,!0,this.recurrentConstraint);let r;if(this.useBias){if(this.unitForgetBias){let s=this.biasInitializer,a=this.units;r=new(t=class extends Zr{apply(o,i){let l=s.apply([a]),u=new qf().apply([a]),c=s.apply([a*2]);return pS(pS(l,u),c)}},t.className="CustomInit",t)}else r=this.biasInitializer;this.bias=this.addWeight("bias",[this.units*4],null,r,this.biasRegularizer,!0,this.biasConstraint)}else this.bias=null;this.built=!0}call(e,t){return Z(()=>{let n=t.training==null?!1:t.training;if(e=e,e.length!==3)throw new q(`LSTMCell expects 3 input Tensors (inputs, h, c), got ${e.length}.`);let r=e[1],s=e[2];e=e[0],0Dr(e),rate:this.dropout,training:n,count:4})),0Dr(r),rate:this.recurrentDropout,training:n,count:4}));let a=this.dropoutMask,o=this.recurrentDropoutMask,i,l,u,c;0{this.cell.dropoutMask!=null&&(je(this.cell.dropoutMask),this.cell.dropoutMask=null),this.cell.recurrentDropoutMask!=null&&(je(this.cell.recurrentDropoutMask),this.cell.recurrentDropoutMask=null);let n=t==null?null:t.mask,r=t==null?null:t.training,s=t==null?null:t.initialState;return super.call(e,{mask:n,training:r,initialState:s})})}static fromConfig(e,t){return t.implmentation===0&&(t.implementation=1),new e(t)}};Cx.className="LSTM";ce.registerClass(Cx);var Am=class extends Kd{constructor(e){super(e);this.cells=e.cells}get stateSize(){let e=[];for(let t of this.cells.slice().reverse())Array.isArray(t.stateSize)?e.push(...t.stateSize):e.push(t.stateSize);return e}call(e,t){return Z(()=>{e=e;let n=e.slice(1),r=[];for(let o of this.cells.slice().reverse())Array.isArray(o.stateSize)?r.push(n.splice(0,o.stateSize.length)):r.push(n.splice(0,1));r.reverse();let s=[],a;for(let o=0;o{ii(`RNNCell_${r}`,()=>{n.build(e),Array.isArray(n.stateSize)?t=n.stateSize[0]:t=n.stateSize,e=[e[0],t]})}),this.built=!0}getConfig(){let e=super.getConfig(),t=s=>({className:s.getClassName(),config:s.getConfig()}),r={cells:this.cells.map(t)};return{...e,...r}}static fromConfig(e,t,n={}){let r=[];for(let s of t.cells)r.push(fs(s,n));return new e({cells:r})}get trainableWeights(){if(!this.trainable)return[];let e=[];for(let t of this.cells)e.push(...t.trainableWeights);return e}get nonTrainableWeights(){let e=[];for(let t of this.cells)e.push(...t.nonTrainableWeights);if(!this.trainable){let t=[];for(let n of this.cells)t.push(...n.trainableWeights);return t.concat(e)}return e}getWeights(){let e=[];for(let t of this.cells)e.push(...t.weights);return G1(e)}setWeights(e){let t=[];for(let n of this.cells){let r=n.weights.length,s=e.splice(r);for(let a=0;amS(t(),n),o=()=>Wd(a,t,r);return!s||s<=1?Sn(o().clone()):Array(s).fill(void 0).map(o).map(l=>Sn(l.clone()))}var k8=class extends fa{constructor(e){if(e.unroll)throw new Ge("Unrolling is not possible with convolutional RNNs.");if(Array.isArray(e.cell))throw new Ge("It is not possible at the moment to stack convolutional cells.");super(e);this.inputSpec=[new tn({ndim:5})]}call(e,t){return Z(()=>{if(this.cell.dropoutMask!=null&&(je(this.cell.dropoutMask),this.cell.dropoutMask=null),this.cell.recurrentDropoutMask!=null&&(je(this.cell.recurrentDropoutMask),this.cell.recurrentDropoutMask=null),t&&t.constants)throw new q("ConvRNN2D cell does not support constants");let n=t==null?null:t.mask,r=t==null?null:t.training,s=t==null?null:t.initialState;return super.call(e,{mask:n,training:r,initialState:s})})}computeOutputShape(e){let t=this.computeSingleOutputShape(e);return this.returnSequences||(t=[t[0],...t.slice(2)]),this.returnState&&(t=[t,...Array(2).fill([e[0],...t.slice(-3)])]),t}getInitialState(e){return Z(()=>{let{stateSize:t}=this.cell,n=e.shape,r=this.computeSingleOutputShape(n),s=[r[0],...r.slice(2)],a=un(s);return Array.isArray(t)?Array(t.length).fill(a):[a]})}resetStates(e,t=!1){Z(()=>{if(!this.stateful)throw new da("Cannot call resetStates() on an RNN Layer that is not stateful.");let n=this.inputSpec[0].shape,r=this.computeSingleOutputShape(n),s=[r[0],...r.slice(2)];if(n[0]==null)throw new q("If an RNN is stateful, it needs to know its batch size. Specify the batch size of your input tensors: \n- If using a Sequential model, specify the batch size by passing a `batchInputShape` option to your first layer.\n- If using the functional API, specify the batch size by passing a `batchShape` option to your Input layer.");if(this.getStates()==null)Array.isArray(this.cell.stateSize)?this.states_=this.cell.stateSize.map(()=>un(s)):this.states_=[un(s)];else if(e==null)je(this.states_),this.keptStates!=null&&(je(this.keptStates),this.keptStates=[]),Array.isArray(this.cell.stateSize)?this.states_=this.cell.stateSize.map(()=>un(s)):this.states_[0]=un(s);else{if(Array.isArray(e)||(e=[e]),e.length!==this.states_.length)throw new q(`Layer ${this.name} expects ${this.states_.length} state(s), but it received ${e.length} state value(s). Input received: ${e}`);t?this.keptStates.push(this.states_.slice()):je(this.states_);for(let o=0;oSn(o.clone()))})}computeSingleOutputShape(e){let{dataFormat:t,filters:n,kernelSize:r,padding:s,strides:a,dilationRate:o}=this.cell,i=t==="channelsFirst",l=e[i?3:2],u=e[i?4:3],c=ms(l,r[0],s,a[0],o[0]),d=ms(u,r[1],s,a[1],o[1]);return[...e.slice(0,2),...i?[n,c,d]:[c,d,n]]}};k8.className="ConvRNN2D";var xm=class extends Xd{constructor(e){let{filters:t,kernelSize:n,strides:r,padding:s,dataFormat:a,dilationRate:o}=e;super({...e,units:t});this.filters=t,An(this.filters,"filters"),this.kernelSize=iu(n,2,"kernelSize"),this.kernelSize.forEach(i=>An(i,"kernelSize")),this.strides=iu(r||1,2,"strides"),this.strides.forEach(i=>An(i,"strides")),this.padding=s||"valid",Or(this.padding),this.dataFormat=a||"channelsLast",Yt(this.dataFormat),this.dilationRate=iu(o||1,2,"dilationRate"),this.dilationRate.forEach(i=>An(i,"dilationRate"))}build(e){var t;e=At(e);let n=this.dataFormat==="channelsFirst"?1:e.length-1;if(e[n]==null)throw new q(`The channel dimension of the input should be defined. Found ${e[n]}`);let r=e[n],s=4,a=this.kernelSize.concat([r,this.filters*s]);this.kernel=this.addWeight("kernel",a,null,this.kernelInitializer,this.kernelRegularizer,!0,this.kernelConstraint);let o=this.kernelSize.concat([this.filters,this.filters*s]);if(this.recurrentKernel=this.addWeight("recurrent_kernel",o,null,this.recurrentInitializer,this.recurrentRegularizer,!0,this.recurrentConstraint),this.useBias){let i;if(this.unitForgetBias){let l=this.biasInitializer,u=this.filters;i=new(t=class extends Zr{apply(c,d){let h=l.apply([u]),p=la([u]),f=l.apply([u*2]);return F1([h,p,f])}},t.className="CustomInit",t)}else i=this.biasInitializer;this.bias=this.addWeight("bias",[this.filters*s],null,i,this.biasRegularizer,!0,this.biasConstraint)}this.built=!0}call(e,t){return Z(()=>{if(e.length!==3)throw new q(`ConvLSTM2DCell expects 3 input Tensors (inputs, h, c), got ${e.length}.`);let n=t.training||!1,r=e[0],s=e[1],a=e[2],o=4;0Dr(r),rate:this.dropout,training:n,count:o}));let i=this.dropoutMask,l=(ee,oe,se)=>!oe||!oe[se]?ee:K(oe[se],ee),u=l(r,i,0),c=l(r,i,1),d=l(r,i,2),h=l(r,i,3);0Dr(s),rate:this.recurrentDropout,training:n,count:o}));let p=this.recurrentDropoutMask,f=l(s,p,0),m=l(s,p,1),g=l(s,p,2),y=l(s,p,3),A=3,[x,b,v,w]=dr(this.kernel.read(),o,A),[I,T,C,M]=this.useBias?dr(this.bias.read(),o):[null,null,null,null];u=this.inputConv(u,x,I,this.padding),c=this.inputConv(c,b,T,this.padding),d=this.inputConv(d,v,C,this.padding),h=this.inputConv(h,w,M,this.padding);let[$,R,N,F]=dr(this.recurrentKernel.read(),o,A);f=this.recurrentConv(f,$),m=this.recurrentConv(m,R),g=this.recurrentConv(g,N),y=this.recurrentConv(y,F);let B=this.recurrentActivation.apply(pe(u,f)),j=this.recurrentActivation.apply(pe(c,m)),X=pe(K(j,a),K(B,this.activation.apply(pe(d,g)))),Y=K(this.recurrentActivation.apply(pe(h,y)),this.activation.apply(X));return[Y,Y,X]})}getConfig(){let{units:e,...t}=super.getConfig(),n={filters:this.filters,kernelSize:this.kernelSize,padding:this.padding,dataFormat:this.dataFormat,dilationRate:this.dilationRate,strides:this.strides};return{...t,...n}}inputConv(e,t,n,r){let s=Ba(e,t,this.strides,r||"valid",this.dataFormat==="channelsFirst"?"NCHW":"NHWC",this.dilationRate);return n?hs(s,n,this.dataFormat):s}recurrentConv(e,t){return Ba(e,t,1,"same",this.dataFormat==="channelsFirst"?"NCHW":"NHWC")}};xm.className="ConvLSTM2DCell";ce.registerClass(xm);var Ex=class extends k8{constructor(e){let t=new xm(e);super({...e,cell:t})}static fromConfig(e,t){return new e(t)}};Ex.className="ConvLSTM2D";ce.registerClass(Ex);var bm=class extends st{constructor(e){super(e);this.rate=Math.max(Math.min(e.rate,1),0),this.noiseShape=e.noiseShape,this.seed=e.seed,this.supportsMasking=!0}getNoiseShape(e){if(this.noiseShape==null)return this.noiseShape;let t=e.shape,n=[];for(let r=0;r{this.invokeCallHook(e,t);let n=Ke(e);if(0mS(n,this.rate,s,this.seed),()=>n,r)}return e})}getConfig(){let e={rate:this.rate,noiseShape:this.noiseShape,seed:this.seed},t=super.getConfig();return Object.assign(e,t),e}dispose(){return super.dispose()}};bm.className="Dropout";ce.registerClass(bm);var $x=class extends bm{constructor(e){super(e);this.inputSpec=[{ndim:3}]}getNoiseShape(e){let t=e.shape;return[t[0],1,t[2]]}};$x.className="SpatialDropout1D";ce.registerClass($x);var _x=class extends st{constructor(e){super(e);if(this.activation=null,this.useBias=!0,this.kernel=null,this.bias=null,this.DEFAULT_KERNEL_INITIALIZER="glorotNormal",this.DEFAULT_BIAS_INITIALIZER="zeros",e.batchInputShape==null&&e.inputShape==null&&e.inputDim!=null){let t=null;e.batchSize!=null&&(t=e.batchSize),this.batchInputShape=[t,e.inputDim]}this.units=e.units,An(this.units,"units"),this.activation=Za(e.activation),e.useBias!=null&&(this.useBias=e.useBias),this.kernelInitializer=zt(e.kernelInitializer||this.DEFAULT_KERNEL_INITIALIZER),this.biasInitializer=zt(e.biasInitializer||this.DEFAULT_BIAS_INITIALIZER),this.kernelConstraint=hn(e.kernelConstraint),this.biasConstraint=hn(e.biasConstraint),this.kernelRegularizer=Lt(e.kernelRegularizer),this.biasRegularizer=Lt(e.biasRegularizer),this.activityRegularizer=Lt(e.activityRegularizer),this.supportsMasking=!0,this.inputSpec=[{minNDim:2}]}build(e){e=At(e);let t=e[e.length-1];this.kernel==null&&(this.kernel=this.addWeight("kernel",[t,this.units],null,this.kernelInitializer,this.kernelRegularizer,!0,this.kernelConstraint),this.useBias&&(this.bias=this.addWeight("bias",[this.units],null,this.biasInitializer,this.biasRegularizer,!0,this.biasConstraint))),this.inputSpec=[{minNDim:2,axes:{[-1]:t}}],this.built=!0}computeOutputShape(e){e=At(e);let t=e.slice();return t[t.length-1]=this.units,t}call(e,t){return Z(()=>{this.invokeCallHook(e,t);let n=Ke(e),r=sS(this.activation.getClassName()),s;return r!=null?s=Fs(n,this.kernel.read(),r,this.bias?this.bias.read():null):(s=Fs(n,this.kernel.read()),this.bias!=null&&(s=hs(s,this.bias.read())),this.activation!=null&&(s=this.activation.apply(s))),s})}getConfig(){let e={units:this.units,activation:Xa(this.activation),useBias:this.useBias,kernelInitializer:Ht(this.kernelInitializer),biasInitializer:Ht(this.biasInitializer),kernelRegularizer:kt(this.kernelRegularizer),biasRegularizer:kt(this.biasRegularizer),activityRegularizer:kt(this.activityRegularizer),kernelConstraint:dn(this.kernelConstraint),biasConstraint:dn(this.biasConstraint)},t=super.getConfig();return Object.assign(e,t),e}};_x.className="Dense";ce.registerClass(_x);var Rx=class extends st{constructor(e){e=e||{},super(e),this.inputSpec=[{minNDim:3}],this.dataFormat=e.dataFormat}computeOutputShape(e){e=At(e);for(let t of e.slice(1))if(t==null)throw new q(`The shape of the input to "Flatten" is not fully defined (got ${e.slice(1)}). 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st{constructor(e){e==null&&(e={}),super(e),this.supportsMasking=!0,this.axis=e.axis==null?-1:e.axis,this.momentum=e.momentum==null?.99:e.momentum,this.epsilon=e.epsilon==null?.001:e.epsilon,this.center=e.center==null?!0:e.center,this.scale=e.scale==null?!0:e.scale,this.betaInitializer=zt(e.betaInitializer||"zeros"),this.gammaInitializer=zt(e.gammaInitializer||"ones"),this.movingMeanInitializer=zt(e.movingMeanInitializer||"zeros"),this.movingVarianceInitializer=zt(e.movingVarianceInitializer||"ones"),this.betaConstraint=hn(e.betaConstraint),this.gammaConstraint=hn(e.gammaConstraint),this.betaRegularizer=Lt(e.betaRegularizer),this.gammaRegularizer=Lt(e.gammaRegularizer)}build(e){e=At(e);let t=this.axis>=0?this.axis:this.axis+e.length,n=e[t];if(n==null)throw new q(`Axis ${t} of input tensor should have a defined dimension but the layer received an input with shape ${JSON.stringify(e)}.`);this.inputSpec=[new tn({ndim:e.length,axes:{[t]:n}})];let r=[n];this.scale&&(this.gamma=this.addWeight("gamma",r,null,this.gammaInitializer,this.gammaRegularizer,!0,this.gammaConstraint)),this.center&&(this.beta=this.addWeight("beta",r,null,this.betaInitializer,this.betaRegularizer,!0,this.betaConstraint)),this.movingMean=this.addWeight("moving_mean",r,null,this.movingMeanInitializer,null,!1),this.movingVariance=this.addWeight("moving_variance",r,null,this.movingVarianceInitializer,null,!1),this.built=!0}call(e,t){return Z(()=>{let n=t.training==null?!1:t.training,r=Ke(e),s=r.shape,a=s.length,o=ds(0,a),i=this.axis>=0?this.axis:this.axis+a;o.splice(i,1);let l=si(1,a);l[i]=s[i];let u=o.slice();u.sort();let c=!k.arraysEqual(u,ds(0,a).slice(0,a-1)),d=()=>{if(c){let y=this.movingMean.read().reshape(l),A=this.movingVariance.read().reshape(l),x=this.center?this.beta.read().reshape(l):null,b=this.scale?this.gamma.read().reshape(l):null;return Yd(r,y,A,x,b,this.epsilon)}else return 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o=S("axis",e,t,n),i=S("keepDims",e,t,n);return[_f(S("x",e,t,n),o,i)]}case"Sum":{let o=S("axis",e,t,n),i=S("keepDims",e,t,n);return[_e(S("x",e,t,n),o,i)]}case"All":{let o=S("axis",e,t,n),i=S("keepDims",e,t,n);return[DA(S("x",e,t,n),o,i)]}case"Any":{let o=S("axis",e,t,n),i=S("keepDims",e,t,n);return[wf(S("x",e,t,n),o,i)]}case"ArgMax":{let o=S("axis",e,t,n);return[kf(S("x",e,t,n),o)]}case"ArgMin":{let o=S("axis",e,t,n);return[H6(S("x",e,t,n),o)]}case"Prod":{let o=S("axis",e,t,n),i=S("keepDims",e,t,n);return[XA(S("x",e,t,n),o,i)]}case"Cumsum":{let o=S("axis",e,t,n),i=S("exclusive",e,t,n),l=S("reverse",e,t,n);return[BA(S("x",e,t,n),o,i,l)]}case"Bincount":let r=S("x",e,t,n),s=S("weights",e,t,n),a=S("size",e,t,n);return[eI(r,s,a)];case"DenseBincount":{let o=S("x",e,t,n),i=S("weights",e,t,n),l=S("size",e,t,n),u=S("binaryOutput",e,t,n);return[tq(o,i,l,u)]}default:throw TypeError(`Node type ${e.op} is not implemented`)}},kse=(e,t,n)=>{switch(e.op){case"ConcatV2":case"Concat":{let r=S("n",e,t,n),s=S("axis",e,t,n),a=S("tensors",e,t,n);return a=a.slice(0,r),[en(a,s)]}case"Gather":{let r=S("x",e,t,n),s=S("indices",e,t,n);return[$d(r,ke(s,"int32"),0)]}case"GatherV2":{let r=S("axis",e,t,n),s=S("batchDims",e,t,n),a=S("x",e,t,n),o=S("indices",e,t,n);return[$d(a,ke(o,"int32"),r,s)]}case"Reverse":{let r=S("dims",e,t,n),s=[];for(let o=0;o{let r=S("axis",e,t,n),s=S("tensors",e,t,n),a=s[0].shape,o=Jl(s[0]).shape,i=s.map(l=>{let u=k.arraysEqual(l.shape,a);if(!u&&!k.arraysEqual(Jl(l).shape,o))throw new Error("the input tensors shape does not match");return u?l:J(l,a)});return[Mr(i,r)]});case"Unpack":{let r=S("axis",e,t,n),s=S("tensor",e,t,n);return ls(s,r)}case"Tile":{let r=S("reps",e,t,n);return[Yo(S("x",e,t,n),r)]}case"Split":case"SplitV":{let r=S("axis",e,t,n),s=S("numOrSizeSplits",e,t,n),a=S("x",e,t,n);return dr(a,s,r)}case"ScatterNd":{let r=S("indices",e,t,n),s=S("values",e,t,n),a=S("shape",e,t,n);return[RX(r,s,a)]}case"GatherNd":{let r=S("x",e,t,n),s=S("indices",e,t,n);return[OX(r,s)]}case"SparseToDense":{let r=S("sparseIndices",e,t,n),s=S("outputShape",e,t,n),a=S("sparseValues",e,t,n),o=S("defaultValue",e,t,n);return[$I(r,a,s,a.dtype===o.dtype?o:ke(o,a.dtype))]}default:throw TypeError(`Node type ${e.op} is not implemented`)}},Ise=(e,t,n)=>{switch(e.op){case"SparseFillEmptyRows":{let{outputIndices:r,outputValues:s,emptyRowIndicator:a,reverseIndexMap:o}=Vf.sparseFillEmptyRows(S("indices",e,t,n),S("values",e,t,n),S("denseShape",e,t,n),S("defaultValue",e,t,n));return[r,s,a,o]}case"SparseReshape":{let{outputIndices:r,outputShape:s}=Vf.sparseReshape(S("inputIndices",e,t,n),S("inputShape",e,t,n),S("newShape",e,t,n));return[r,s]}case"SparseSegmentMean":return[Vf.sparseSegmentMean(S("data",e,t,n),S("indices",e,t,n),S("segmentIds",e,t,n))];case"SparseSegmentSum":return[Vf.sparseSegmentSum(S("data",e,t,n),S("indices",e,t,n),S("segmentIds",e,t,n))];default:throw TypeError(`Node type ${e.op} is not 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this.tensorArrayMap[e]}addTensorList(e){this.tensorListMap[e.id]=e}getTensorList(e){return this.tensorListMap[e]}dispose(e){for(let t in this.tensorArrayMap)this.tensorArrayMap[t].clearAndClose(e);for(let t in this.tensorListMap)this.tensorListMap[t].clearAndClose(e)}};function gT(e,t,n,r){let s=new Set,a=[],o=null,i=null,l=new Set,u=Object.keys(e).map(h=>hr(h)[0]),c=[];r!=null&&(c=r.map(h=>hr(h.name)[0]));let d=[...t];for(;d.length>0;){let h=d.pop();if((yT(h)||Rse(h)||Dse(h))&&o==null&&(o=h,i=o.children.map(p=>p.name).filter(p=>s.has(p))),s.add(h.name),n[h.name]==null&&u.indexOf(h.name)===-1&&c.indexOf(h.name)===-1){if(h.inputs.length===0){a.push(h.name);continue}h.inputs.forEach(p=>{l.has(p.name)||(l.add(p.name),d.push(p))})}}return{inputs:e,outputs:t,usedNodes:s,missingInputs:a,dynamicNode:o,syncInputs:i}}function Cse(e,t,n){let{usedNodes:r,inputs:s}=n,a=[],o=Object.keys(s).map(c=>hr(c)[0]).map(c=>e.nodes[c]),i=e.initNodes;o.forEach(c=>{r.has(c.name)&&a.push(c)}),e.weights.forEach(c=>{r.has(c.name)&&a.push(c)}),i!=null&&i.forEach(c=>{r.has(c.name)&&a.push(c)});let l=new Set,u=[];for(;a.length>0;){let c=a.pop();l.add(c.name),t[c.name]||u.push(c),c.children.forEach(d=>{!l.has(d.name)&&r.has(d.name)&&d.inputs.every(h=>l.has(h.name))&&a.push(d)})}return u}var Ese=["Switch","Merge","Enter","Exit","NextIteration","StatelessIf","StatelessWhile","if","While"],$se=["NonMaxSuppressionV2","NonMaxSuppressionV3","NonMaxSuppressionV5","Where"],_se=["HashTable","HashTableV2","LookupTableImport","LookupTableImportV2","LookupTableFind","LookupTableFindV2","LookupTableSize","LookupTableSizeV2"];function yT(e){return Ese.indexOf(e.op)>=0}function Rse(e){return $se.indexOf(e.op)>=0}function Dse(e){return _se.indexOf(e.op)>=0}var N5=class{constructor(e,t){this.graph=e,this.parent=t,this.compiledMap=new Map,this._weightMap={},this.SEPERATOR=",",this._functions={},this._functionExecutorMap={},this._outputs=e.outputs,this._inputs=e.inputs,this._initNodes=e.initNodes,this._signature=e.signature,this._functions=e.functions,e.functions!=null&&Object.keys(e.functions).forEach(n=>{this._functionExecutorMap[n]=new N5(e.functions[n],this)})}get weightIds(){return this.parent?this.parent.weightIds:this._weightIds}get functionExecutorMap(){return this.parent?this.parent.functionExecutorMap:this._functionExecutorMap}get weightMap(){return this.parent?this.parent.weightMap:this._weightMap}set weightMap(e){let t=Object.keys(e).map(n=>e[n].map(r=>r.id));this._weightIds=[].concat(...t),this._weightMap=e}set resourceManager(e){this._resourceManager=e}get inputs(){return this._inputs.map(e=>({name:e.name,shape:e.attrParams.shape?e.attrParams.shape.value:void 0,dtype:e.attrParams.dtype?e.attrParams.dtype.value:void 0}))}get outputs(){return this._outputs.map(e=>({name:e.name,shape:e.attrParams.shape?e.attrParams.shape.value:void 0,dtype:e.attrParams.dtype?e.attrParams.dtype.value:void 0}))}get inputNodes(){return this._inputs.map(e=>e.signatureKey||e.name)}get outputNodes(){return this._outputs.map(e=>{let t=e.signatureKey||e.name;return e.defaultOutput?`${t}:${e.defaultOutput}`:t})}get functions(){return Object.keys(this._functions).reduce((e,t)=>(e[t]=this._functions[t].signature,e),{})}getCompilationKey(e,t){let n=e.map(s=>s.name).sort(),r=t.map(s=>s.name).sort();return n.join(this.SEPERATOR)+"--"+r.join(this.SEPERATOR)}compile(e,t){let n=gT(e,t,this.weightMap,this._initNodes),{missingInputs:r,dynamicNode:s,syncInputs:a}=n;if(s!=null)throw new Error(`This execution contains the node '${s.name}', which has the dynamic op '${s.op}'. Please use model.executeAsync() instead. Alternatively, to avoid the dynamic ops, specify the inputs [${a}]`);if(r.length>0){let o=t.map(l=>l.name),i=Object.keys(e);throw new Error(`Cannot compute the outputs [${o}] from the provided inputs [${i}]. Missing the following inputs: [${r}]`)}return Cse(this.graph,this.weightMap,n)}execute(e,t){e=this.mapInputs(e);let n=Object.keys(e).sort();this.checkInputs(e),this.checkInputShapeAndType(e),t=this.mapOutputs(t),this.checkOutputs(t);let r=n.map(c=>this.graph.nodes[hr(c)[0]]),s=t.map(c=>hr(c)[0]),a=s.map(c=>this.graph.nodes[c]);a.length===0&&(a=this._outputs);let o=this.getCompilationKey(r,a),i=this.compiledMap.get(o);i==null&&(i=this.compile(e,a),this.compiledMap.set(o,i));let l={},u={};return Z(()=>{let c=new mT(this.weightMap,l,u,this.functionExecutorMap),d={...this.weightMap};Object.keys(e).forEach(f=>{let[m,g]=hr(f),y=[];y[g]=e[f],d[m]=y});let h=this.getFrozenTensorIds(d),p={};for(let f=0;fBn(f,d,c))})}getFrozenTensorIds(e){let t=[].concat.apply([],Object.keys(e).map(n=>e[n]).map(n=>n.map(r=>r.id)));return new Set(t)}checkTensorForDisposal(e,t,n,r,s,a,o){t.category==="control"||a.indexOf(e)!==-1||(n[e].forEach(i=>{i!=null&&(o[i.id]=(o[i.id]||0)+t.children.length)}),t.inputs.forEach(i=>{if(i.category!=="control"){let l=Mre(i.name,n,r);l!=null&&l.forEach(u=>{if(u&&!u.kept&&!s.has(u.id)){let c=o[u.id];c===1?(u.dispose(),delete o[u.id]):c!=null&&o[u.id]--}})}}))}async executeAsync(e,t){return this._executeAsync(e,t)}async _executeAsync(e,t,n=!1,r={},s={}){n||(e=this.mapInputs(e),this.checkInputs(e),this.checkInputShapeAndType(e),t=this.mapOutputs(t),this.checkOutputs(t));let a=new mT(this.weightMap,r,s,this.functionExecutorMap),o=await this.executeWithControlFlow(e,a,t,n),i=t.map(d=>Bn(d,o,a)),l=i.map(d=>d.id),u=Object.keys(e).map(d=>e[d].id),c=new Set([...l,...u,...this.weightIds]);return Object.keys(o).forEach(d=>{o[d].forEach(p=>{p&&!p.kept&&!p.isDisposed&&!c.has(p.id)&&p.dispose()})}),this.parent==null&&a.dispose(c),i}async executeFunctionAsync(e,t,n){let r=e.reduce((s,a,o)=>(s[this.inputs[o].name]=a,s),{});return this._executeAsync(r,this.outputNodes,!0,t,n)}async executeWithControlFlow(e,t,n,r){let s=Object.keys(e),a=s.map(A=>this.graph.nodes[hr(A)[0]]),o=n.map(A=>hr(A)[0]),i=o.map(A=>this.graph.nodes[A]);i.length===0&&(i=this._outputs);let{usedNodes:l,missingInputs:u,dynamicNode:c,syncInputs:d}=gT(e,i,this.weightMap,this._initNodes),h=[...a,...this.graph.weights,...this._initNodes||[]].map(A=>({node:A,contexts:t.currentContext})),p={...this.weightMap};Object.keys(e).forEach(A=>{let[x,b]=hr(A),v=[];v[b]=e[A],p[x]=v});let f={},m=this.getFrozenTensorIds(p),g={};for(;h.length>0;){let A=this.processStack(a,h,t,p,g,m,o,f,l);await Promise.all(A)}c==null&&!r&&console.warn("This model execution did not contain any nodes with control flow or dynamic output shapes. You can use model.execute() instead.");let y=i.filter(A=>!yT(A)&&!Bn(A.name,p,t)).map(A=>A.name);if(y.length>0){let A="";throw c!=null&&(A=`Alternatively, to avoid the dynamic ops, use model.execute() and specify the inputs [${d}]`),new Error(`Cannot compute the outputs [${y}] from the provided inputs [${s}]. Consider providing the following inputs: [${u}]. ${A}`)}return p}processStack(e,t,n,r,s,a,o,i,l){let u=[];for(;t.length>0;){let c=t.pop();n.currentContext=c.contexts;let d="";if(c.node.op==="Enter"&&S("isConstant",c.node,r,n)&&([d]=ma(c.node.name,n)),r[c.node.name]==null){let h=fT(c.node,r,n,this._resourceManager);d||([d]=ma(c.node.name,n));let p=n.currentContext;k.isPromise(h)?u.push(h.then(f=>(r[d]=f,n.currentContext=p,this.checkTensorForDisposal(d,c.node,r,n,a,o,i),this.processChildNodes(c.node,t,n,r,s,l),f))):(r[d]=h,this.checkTensorForDisposal(d,c.node,r,n,a,o,i),this.processChildNodes(c.node,t,n,r,s,l))}else this.processChildNodes(c.node,t,n,r,s,l)}return u}processChildNodes(e,t,n,r,s,a){e.children.forEach(o=>{let[i]=ma(o.name,n);s[i]||!a.has(o.name)||(o.op==="Merge"?o.inputNames.some(l=>!!Bn(l,r,n))&&(s[i]=!0,t.push({contexts:n.currentContext,node:o})):o.inputNames.every(l=>!!Bn(l,r,n))&&(s[i]=!0,t.push({contexts:n.currentContext,node:o})))})}dispose(){Object.keys(this.weightMap).forEach(e=>this.weightMap[e].forEach(t=>t.dispose()))}checkInputShapeAndType(e){Object.keys(e).forEach(t=>{let n=e[t],[r]=hr(t),s=this.graph.nodes[r];if(s.attrParams.shape&&s.attrParams.shape.value){let a=s.attrParams.shape.value,o=a.length===n.shape.length&&n.shape.every((i,l)=>a[l]===-1||a[l]===i);k.assert(o,()=>`The shape of dict['${s.name}'] provided in model.execute(dict) must be [${a}], but was [${n.shape}]`)}s.attrParams.dtype&&s.attrParams.dtype.value&&k.assert(n.dtype===s.attrParams.dtype.value,()=>`The dtype of dict['${s.name}'] provided in model.execute(dict) must be ${s.attrParams.dtype.value}, but was ${n.dtype}`)})}mapInputs(e){let t={};for(let n in e)if(this._signature!=null&&this._signature.inputs!=null&&this._signature.inputs[n]!=null){let r=this._signature.inputs[n];t[r.name]=e[n]}else t[n]=e[n];return t}checkInputs(e){let t=Object.keys(e).filter(n=>{let[r]=hr(n);return this.graph.nodes[r]==null});if(t.length>0)throw new Error(`The dict provided in model.execute(dict) has keys: [${t}] that are not part of graph`)}mapOutputs(e){return e.map(t=>this._signature!=null&&this._signature.outputs!=null&&this._signature.outputs[t]!=null?this._signature.outputs[t].name:t,{})}checkOutputs(e){e.forEach(t=>{let[n]=hr(t);if(!this.graph.nodes[n])throw new Error(`The output '${t}' is not found in the graph`)})}},Fse=class{constructor(e={},t={}){this.hashTableNameToHandle=e,this.hashTableMap=t}addHashTable(e,t){this.hashTableNameToHandle[e]=t.handle,this.hashTableMap[t.id]=t}getHashTableHandleByName(e){return this.hashTableNameToHandle[e]}getHashTableById(e){return this.hashTableMap[e]}dispose(){for(let e in this.hashTableMap)this.hashTableMap[e].clearAndClose(),delete this.hashTableMap[e];for(let e in this.hashTableNameToHandle)this.hashTableNameToHandle[e].dispose(),delete this.hashTableNameToHandle[e]}},Mse="?tfjs-format=file",Ose="model.json",AT=class{constructor(e,t={}){this.modelUrl=e,this.loadOptions=t,this.version="n/a",t==null&&(this.loadOptions={}),this.resourceManager=new Fse}get modelVersion(){return this.version}get inputNodes(){return this.executor.inputNodes}get outputNodes(){return this.executor.outputNodes}get inputs(){return this.executor.inputs}get outputs(){return this.executor.outputs}get weights(){return this.executor.weightMap}get metadata(){return this.artifacts.userDefinedMetadata}get modelSignature(){return this.signature}findIOHandler(){let e=this.modelUrl;if(e.load!=null)this.handler=e;else if(this.loadOptions.requestInit!=null)this.handler=ur.browserHTTPRequest(e,this.loadOptions);else{let t=ur.getLoadHandlers(e,this.loadOptions);if(t.length===0)t.push(ur.browserHTTPRequest(e,this.loadOptions));else if(t.length>1)throw new Error(`Found more than one (${t.length}) load handlers for URL '${[e]}'`);this.handler=t[0]}}async load(){if(this.findIOHandler(),this.handler.load==null)throw new Error("Cannot proceed with model loading because the IOHandler provided does not have the `load` method implemented.");let e=await this.handler.load();return this.loadSync(e)}loadSync(e){this.artifacts=e;let t=this.artifacts.modelTopology,n;this.artifacts.userDefinedMetadata!=null&&this.artifacts.userDefinedMetadata.signature!=null?n=this.artifacts.userDefinedMetadata.signature:n=this.artifacts.signature,this.signature=n,this.version=`${t.versions.producer}.${t.versions.minConsumer}`;let r=ur.decodeWeights(this.artifacts.weightData,this.artifacts.weightSpecs);if(this.executor=new N5(lT.Instance.transformGraph(t,this.signature)),this.executor.weightMap=this.convertTensorMapToTensorsMap(r),this.executor.resourceManager=this.resourceManager,e.modelInitializer!=null&&e.modelInitializer.node!=null){let s=lT.Instance.transformGraph(e.modelInitializer);this.initializer=new N5(s),this.initializer.weightMap=this.executor.weightMap,this.initializer.resourceManager=this.resourceManager,this.initializer.executeAsync({},[])}return!0}async save(e,t){if(typeof e=="string"){let n=ur.getSaveHandlers(e);if(n.length===0)throw new Error(`Cannot find any save handlers for URL '${e}'`);if(n.length>1)throw new Error(`Found more than one (${n.length}) save handlers for URL '${e}'`);e=n[0]}if(e.save==null)throw new Error("GraphModel.save() cannot proceed because the IOHandler provided does not have the `save` attribute defined.");return e.save(this.artifacts)}predict(e,t){return this.execute(e,this.outputNodes)}normalizeInputs(e){if(!(e instanceof Ct)&&!Array.isArray(e))return e;if(e=Array.isArray(e)?e:[e],e.length!==this.inputNodes.length)throw new Error(`Input tensor count mismatch,the graph model has ${this.inputNodes.length} placeholders, while there are ${e.length} input tensors.`);return this.inputNodes.reduce((t,n,r)=>(t[n]=e[r],t),{})}normalizeOutputs(e){return e=e||this.outputNodes,Array.isArray(e)?e:[e]}execute(e,t){e=this.normalizeInputs(e),t=this.normalizeOutputs(t);let n=this.executor.execute(e,t);return n.length>1?n:n[0]}async executeAsync(e,t){e=this.normalizeInputs(e),t=this.normalizeOutputs(t);let n=await this.executor.executeAsync(e,t);return n.length>1?n:n[0]}convertTensorMapToTensorsMap(e){return Object.keys(e).reduce((t,n)=>(t[n]=[e[n]],t),{})}dispose(){this.executor.dispose(),this.initializer&&this.initializer.dispose(),this.resourceManager.dispose()}};async function Et(e,t={}){if(e==null)throw new Error("modelUrl in loadGraphModel() cannot be null. Please provide a url or an IOHandler that loads the model");t==null&&(t={}),t.fromTFHub&&e.load==null&&(e.endsWith("/")||(e=e+"/"),e=`${e}${Ose}${Mse}`);let n=new AT(e,t);return await n.load(),n}var Pse="3.7.0",xT={};De(xT,{CSVDataset:()=>DT,Dataset:()=>uu,FileDataSource:()=>BT,TextLineDataset:()=>$T,URLDataSource:()=>WT,array:()=>oae,csv:()=>yae,func:()=>Aae,generator:()=>xae,microphone:()=>vae,version_data:()=>wae,webcam:()=>bae,zip:()=>iae});var zse=Ks(z3()),Lse=Ks(z3());function Bse(e,t){return Sm(e,t)}function Sm(e,t,n=new Map,r=new Set){if(e==null)return null;if(r.has(e))throw new Error("Circular references are not supported.");if(n.has(e))return n.get(e);let s=t(e);if(s.recurse&&s.value!==null)throw new Error("A deep map function may not return both a value and recurse=true.");if(s.recurse)if(lu(e)){let a=Array.isArray(e)?[]:{};r.add(e);for(let o in e){let i=e[o],l=Sm(i,t,n,r);a[o]=l}return r.delete(e),a}else throw new Error(`Can't recurse into non-iterable type: ${e}`);else return n.set(e,s.value),s.value}function Wse(e,t=vT){return bT(e,t)}function bT(e,t,n=new Set){let r=e[0];if(n.has(r))throw new Error("Circular references are not supported.");let s=t(e);if(s.recurse&&s.value!==null)throw new Error("A deep zip function may not return both a value and recurse=true.");if(s.recurse)if(lu(r)){let a=Array.isArray(r)?[]:{};n.add(r);for(let o in r){let i=e.map(u=>u[o]),l=bT(i,t,n);a[o]=l}return n.delete(r),a}else throw new Error(`Can't recurse into non-iterable type: ${r}`);else return s.value}function vT(e){return e===null?null:lu(e[0])?{value:null,recurse:!0}:{value:e,recurse:!1}}async function wT(e,t){let n=new Map;Sm(e,t,n);for(let s of Array.from(n.keys())){let a=n.get(s);if(k.isPromise(a)){let o=await a;n.set(s,o)}}return Sm(e,t,n)}function lu(e){return e!=null&&!ArrayBuffer.isView(e)&&(Array.isArray(e)||typeof e=="object"&&!(e instanceof Ct))}function Vse(e){return e==null||Use(e)||Array.isArray(e)||typeof e=="object"&&e instanceof Ct||k.isTypedArray(e)}function Use(e){return e===null||typeof e!="object"&&typeof e!="function"}function Hse(e){return Bse(e,Gse)}function Gse(e){return e instanceof Ct?{value:e.clone(),recurse:!1}:lu(e)?{value:null,recurse:!0}:{value:e,recurse:!1}}var kT=class{constructor(e){if(this.capacity=e,this.begin=0,this.end=0,e==null)throw new RangeError("Can't create a ring buffer of unknown capacity.");if(e<1)throw new RangeError("Can't create ring buffer of capacity < 1.");this.data=new Array(e),this.doubledCapacity=2*e}wrap(e){for(;e<0;)e+=this.doubledCapacity;return e%this.doubledCapacity}get(e){if(e<0)throw new RangeError("Can't get item at a negative index.");return this.data[e%this.capacity]}set(e,t){if(e<0)throw new RangeError("Can't set item at a negative index.");this.data[e%this.capacity]=t}length(){let e=this.end-this.begin;return e<0&&(e=this.doubledCapacity+e),e}isFull(){return this.length()===this.capacity}isEmpty(){return this.length()===0}push(e){if(this.isFull())throw new RangeError("Ring buffer is full.");this.set(this.end,e),this.end=this.wrap(this.end+1)}pushAll(e){for(let t of e)this.push(t)}pop(){if(this.isEmpty())throw new RangeError("Ring buffer is empty.");this.end=this.wrap(this.end-1);let e=this.get(this.end);return this.set(this.end,void 0),e}unshift(e){if(this.isFull())throw new RangeError("Ring buffer is full.");this.begin=this.wrap(this.begin-1),this.set(this.begin,e)}shift(){if(this.isEmpty())throw new RangeError("Ring buffer is empty.");let e=this.get(this.begin);return this.set(this.begin,void 0),this.begin=this.wrap(this.begin+1),e}shuffleExcise(e){if(this.isEmpty())throw new RangeError("Ring buffer is empty.");let t=this.wrap(this.begin+e),n=this.get(t);return this.set(t,this.pop()),n}},IT=class extends kT{constructor(){super(IT.INITIAL_CAPACITY)}isFull(){return!1}push(e){super.isFull()&&this.expand(),super.push(e)}unshift(e){super.isFull()&&this.expand(),super.unshift(e)}expand(){let e=this.capacity*2,t=new Array(e),n=this.length();for(let r=0;rt===!0)}rowMajorBatch(e,t=!0){return new Qse(this,e,t)}columnMajorBatch(e,t=!0,n=vT){return this.rowMajorBatch(e,t).map(s=>Wse(s,n))}concatenate(e,t){return new CT(TT([this,e]),t)}take(e){return e<0||e==null?this:new Jse(this,e)}skip(e){return e<0||e==null?this:new Yse(this,e)}prefetch(e){return new ET(this,e)}shuffle(e,t){return new aae(this,e,t)}serial(){return new Zse(this)}},Kse=class extends xn{constructor(e){super();this.items=e,this.trav=0}summary(){return`Array of ${this.items.length} items`}async next(){if(this.trav>=this.items.length)return{value:null,done:!0};let e=this.items[this.trav];return this.trav++,{value:Hse(e),done:!1}}},Xse=class extends xn{constructor(e){super();this.nextFn=e}summary(){return"Function call"}async next(){try{return this.nextFn()}catch(e){throw e.message=`Error thrown while iterating through a dataset: ${e.message}`,e}}},Zse=class extends xn{constructor(e){super();this.upstream=e,this.lastRead=Promise.resolve({value:null,done:!1})}summary(){return`${this.upstream.summary()} -> Serial`}async next(){return this.lastRead=this.lastRead.then(()=>this.serialNext()),this.lastRead}async serialNext(){return this.upstream.next()}},Yse=class extends xn{constructor(e,t){super();this.upstream=e,this.maxCount=t,this.count=0,this.lastRead=Promise.resolve({value:null,done:!1})}summary(){return`${this.upstream.summary()} -> Skip`}async next(){return this.lastRead=this.lastRead.then(()=>this.serialNext()),this.lastRead}async serialNext(){for(;this.count++ Take`}async next(){return this.count++>=this.maxCount?{value:null,done:!0}:this.upstream.next()}},Qse=class extends xn{constructor(e,t,n=!0){super();this.upstream=e,this.batchSize=t,this.enableSmallLastBatch=n,this.lastRead=Promise.resolve({value:null,done:!1})}summary(){return`${this.upstream.summary()} -> RowMajorBatch`}async next(){return this.lastRead=this.lastRead.then(()=>this.serialNext()),this.lastRead}async serialNext(){let e=[];for(;e.length0?{value:e,done:!1}:{value:null,done:!0};e.push(t.value)}return{value:e,done:!1}}},eae=class extends xn{constructor(e,t){super();this.upstream=e,this.predicate=t,this.lastRead=Promise.resolve({value:null,done:!1})}summary(){return`${this.upstream.summary()} -> Filter`}async next(){return this.lastRead=this.lastRead.then(()=>this.serialNext()),this.lastRead}async serialNext(){for(;;){let e=await this.upstream.next();if(e.done||this.predicate(e.value))return e;je(e.value)}}},tae=class extends xn{constructor(e,t){super();this.upstream=e,this.transform=t}summary(){return`${this.upstream.summary()} -> Map`}async next(){let e=await this.upstream.next();if(e.done)return{value:null,done:!0};let t=Es.getTensorsInContainer(e.value),n=this.transform(e.value),r=Es.getTensorsInContainer(n);for(let s of t)Es.isTensorInList(s,r)||s.dispose();return{value:n,done:!1}}},nae=class extends xn{constructor(e,t){super();this.upstream=e,this.handler=t,this.count=0,this.lastRead=Promise.resolve({value:null,done:!1})}summary(){return`${this.upstream.summary()} -> handleErrors`}async next(){return this.lastRead=this.lastRead.then(()=>this.serialNext()),this.lastRead}async serialNext(){for(;;)try{return await this.upstream.next()}catch(e){if(!this.handler(e))return{value:null,done:!0}}}},NT=class extends xn{constructor(e,t){super();this.upstream=e,this.transform=t}summary(){return`${this.upstream.summary()} -> AsyncMap`}async next(){let e=await this.upstream.next();if(e.done)return{value:null,done:!0};let t=Es.getTensorsInContainer(e.value),n=await this.transform(e.value),r=Es.getTensorsInContainer(n);for(let s of t)Es.isTensorInList(s,r)||s.dispose();return{value:n,done:!1}}},E5=class extends xn{constructor(){super();this.outputQueue=new ST,this.lastRead=Promise.resolve({value:null,done:!1})}async next(){return this.lastRead=this.lastRead.then(()=>this.serialNext()),this.lastRead}async serialNext(){for(;this.outputQueue.length()===0;)if(!await this.pump())return{value:null,done:!0};return{value:this.outputQueue.shift(),done:!1}}},rae=class extends E5{constructor(e,t){super();this.upstream=e,this.transform=t}summary(){return`${this.upstream.summary()} -> Flatmap`}async pump(){let e=await this.upstream.next();if(e.done)return!1;let t=Es.getTensorsInContainer(e.value),n=this.transform(e.value),r=Es.getTensorsInContainer(n);this.outputQueue.pushAll(n);for(let s of t)Es.isTensorInList(s,r)||s.dispose();return!0}},CT=class extends xn{constructor(e,t){super();this.baseErrorHandler=t,this.lastRead=null,this.iterator=null,this.moreIterators=e}summary(){return"TODO: fill in upstream of chained summaries -> Chained"}async next(){return this.lastRead=this.readFromChain(this.lastRead),this.lastRead}async readFromChain(e){if(await e,this.iterator==null){let n=await this.moreIterators.next();if(n.done)return{value:null,done:!0};this.iterator=n.value,this.baseErrorHandler!=null&&(this.iterator=this.iterator.handleErrors(this.baseErrorHandler))}let t=await this.iterator.next();return t.done?(this.iterator=null,this.readFromChain(e)):t}},Tm;(function(e){e[e.FAIL=0]="FAIL",e[e.SHORTEST=1]="SHORTEST",e[e.LONGEST=2]="LONGEST"})(Tm||(Tm={}));var sae=class extends xn{constructor(e,t=0){super();this.iterators=e,this.mismatchMode=t,this.count=0,this.currentPromise=null}summary(){return"{TODO: fill in upstream of zip summaries} -> Zip"}async nextState(e){await e;let t=0,n=0;function r(a){return a instanceof xn?{value:a.next().then(i=>(t++,i.done&&n++,i.value)),recurse:!1}:{value:null,recurse:!0}}let s=await wT(this.iterators,r);if(t===n)return{value:null,done:!0};if(n>0)switch(this.mismatchMode){case 0:throw new Error(`Zipped streams should have the same length. 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${JSON.stringify(t)}`)}if(this.resize)try{return{value:this.cropAndResizeFrame(e),done:!1}}catch(t){throw new Error(`Error thrown cropping the video: ${t.message}`)}finally{e.dispose()}else return{value:e,done:!1}}needToResize(){return!!(this.webcamConfig.resizeWidth&&this.webcamConfig.resizeHeight&&(this.webcamVideoElement.width!==this.webcamConfig.resizeWidth||this.webcamVideoElement.height!==this.webcamConfig.resizeHeight))}cropAndResizeFrame(e){return Z(()=>{let t=$r(ke(e,"float32"),0),n;n=ni.cropAndResize(t,this.cropBox,this.cropBoxInd,this.cropSize,"bilinear");let r=n.shape;return J(n,r.slice(1))})}async capture(){return(await this.next()).value}stop(){this.stream.getTracks().forEach(t=>t.stop());try{this.webcamVideoElement.srcObject=null}catch(t){console.log(t),this.webcamVideoElement.src=null}this.isClosed=!0}toArray(){throw new Error("Can not convert infinite video stream to array.")}},OT=class{},PT=class extends xn{split(e){return new cae(this,e)}},cae=class extends PT{constructor(e,t){super();this.upstream=e,this.impl=new dae(e,t)}summary(){return this.impl.summary()}async next(){return this.impl.next()}},dae=class extends E5{constructor(e,t){super();this.upstream=e,this.separator=t,this.carryover=""}summary(){return`${this.upstream.summary()} -> Split('${this.separator}')`}async pump(){let e=await this.upstream.next();if(e.done)return this.carryover===""?!1:(this.outputQueue.push(this.carryover),this.carryover="",!0);let t=e.value.split(this.separator);t[0]=this.carryover+t[0];for(let n of t.slice(0,-1))this.outputQueue.push(n);return this.carryover=t[t.length-1],!0}},hae=class extends xn{decodeUTF8(){return new pae(this)}},pae=class extends PT{constructor(e){super();this.upstream=e,this.impl=new fae(e)}summary(){return this.impl.summary()}async next(){return this.impl.next()}},fae=class extends E5{constructor(e){super();if(this.upstream=e,ae().get("IS_BROWSER"))this.decoder=new TextDecoder("utf-8");else{let{StringDecoder:t}=wR();this.decoder=new t("utf8")}}summary(){return`${this.upstream.summary()} -> Utf8`}async pump(){let e=await this.upstream.next(),t;if(e.done)return!1;t=e.value;let n;return ae().get("IS_BROWSER")?n=this.decoder.decode(t,{stream:!0}):n=this.decoder.write(Buffer.from(t.buffer)),this.outputQueue.push(n),!0}},zT=class extends hae{constructor(e,t={}){super();this.file=e,this.options=t,k.assert(e instanceof Uint8Array||(ae().get("IS_BROWSER")?e instanceof File||e instanceof Blob:!1),()=>"FileChunkIterator only supports File, Blob and Uint8Array right now."),this.offset=t.offset||0,this.chunkSize=t.chunkSize||1024*1024}summary(){return`FileChunks ${this.file}`}async next(){return this.offset>=(this.file instanceof Uint8Array?this.file.byteLength:this.file.size)?{value:null,done:!0}:{value:await new Promise((t,n)=>{let r=this.offset+this.chunkSize;if(this.file instanceof Uint8Array)t(new Uint8Array(this.file.slice(this.offset,r)));else{let 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e=co("fs");this.input=e.readFileSync(this.input.substr(7))}return new zT(this.input,this.options)}},WT=class extends OT{constructor(e,t={}){super();this.url=e,this.fileOptions=t}async iterator(){return LT(this.url)?new BT(this.url,this.fileOptions).iterator():mae(this.url,this.fileOptions)}};function yae(e,t={}){return new DT(new WT(e),t)}function Aae(e){let t=C5(e);return pr(async()=>t)}function xae(e){return pr(async()=>{let t=await e();return C5(()=>t.next())})}async function bae(e,t){return MT.create(e,t)}async function vae(e){return FT.create(e)}var wae="3.7.0";function Te(e,t){Array.isArray(e)||(e=[e]),e.forEach(n=>{n!=null&&k.assert(n.dtype!=="complex64",()=>`${t} does not support complex64 tensors in the CPU backend.`)})}var kae=ca.whereImpl,VT=class extends Bp{constructor(){super();this.blockSize=48,this.firstUse=!0,this.data=new my(this,za())}nextDataId(){return VT.nextDataId++}write(e,t,n){this.firstUse&&(this.firstUse=!1,ae().get("IS_NODE")&&_.warn(` 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Got strides ${o} and dilations '${u}'`);let c=_.computePool2DInfo(s.shape,a,o,u,i,l),d;if(c.filterWidth===1&&c.filterHeight===1&&k.arraysEqual(c.inShape,c.outShape))d=zs({inputs:{x:s},backend:n});else{let h=n.data.get(s.dataId).values,p=k.computeStrides(s.shape),f=L5(h,s.shape,s.dtype,p,c,"avg");d=n.makeTensorInfo(c.outShape,s.dtype,f.values)}return d}var rie={kernelName:Ji,backendName:"cpu",kernelFunc:nie};function sie(e){let{inputs:t,backend:n,attrs:r}=e,{x:s}=t,{filterSize:a,strides:o,pad:i,dimRoundingMode:l,dataFormat:u}=r;Te(s,"avgPool3d");let c=_.computePool3DInfo(s.shape,a,o,1,i,l,u),d=n.data.get(s.dataId).values,h=PN(d,s.shape,s.dtype,k.computeStrides(s.shape),c,"avg");return n.makeTensorInfo(h.shape,"float32",h.values)}var aie={kernelName:Kp,backendName:"cpu",kernelFunc:sie};function oie(e){let{inputs:t,backend:n,attrs:r}=e,{dy:s,input:a}=t,{filterSize:o,strides:i,pad:l,dimRoundingMode:u}=r;Te([s,a],"avgPool3DGrad");let c=_.computePool3DInfo(a.shape,o,i,1,l,u),d=c.strideDepth,h=c.strideHeight,p=c.strideWidth,f=c.filterDepth,m=c.filterHeight,g=c.filterWidth,y=c.dilationDepth,A=c.dilationHeight,x=c.dilationWidth,b=c.effectiveFilterDepth,v=c.effectiveFilterHeight,w=c.effectiveFilterWidth,I=b-1-c.padInfo.front,T=w-1-c.padInfo.left,C=v-1-c.padInfo.top,M=Le(a.shape,"float32"),$=1/(f*m*g),R=n.bufferSync(s);for(let N=0;N=c.outDepth||Math.floor(ne)!==ne))for(let de=0;de=c.outHeight||Math.floor(he)!==he))for(let ge=0;ge=c.outWidth||Math.floor(be)!==be)continue;se+=R.get(N,ne,he,be,F)}}}M.set(se*$,N,B,j,X,F)}return n.makeTensorInfo(M.shape,M.dtype,M.values)}var iie={kernelName:ky,backendName:"cpu",kernelFunc:oie};function lie(e){let{inputs:t,backend:n,attrs:r}=e,{dy:s,input:a}=t,o=a;Te([s,a],"avgPoolGrad");let{filterSize:i,strides:l,pad:u}=r,c=_.computePool2DInfo(o.shape,i,l,1,u),d=c.strideHeight,h=c.strideWidth,p=c.filterHeight,f=c.filterWidth,m=c.dilationHeight,g=c.dilationWidth,y=c.effectiveFilterHeight,A=c.effectiveFilterWidth,x=A-1-c.padInfo.left,b=y-1-c.padInfo.top,v=Le(o.shape,"float32"),w=1/(p*f),I=n.data.get(s.dataId).values,T=Le(s.shape,"float32",I);for(let C=0;C=c.outHeight||Math.floor(X)!==X))for(let Y=0;Y=c.outWidth||Math.floor(ee)!==ee)continue;B+=T.get(C,X,ee,M)}}v.set(B*w,C,$,R,M)}return n.makeTensorInfo(v.shape,v.dtype,v.values)}var uie={kernelName:wy,backendName:"cpu",kernelFunc:lie};function cie(e){let{inputs:t,backend:n,attrs:r}=e,{x:s,scale:a,offset:o,mean:i,variance:l}=t;k.assert(i.shape.length===l.shape.length,()=>"Batch normalization gradient requires mean and variance to have equal ranks."),k.assert(o==null||i.shape.length===o.shape.length,()=>"Batch normalization gradient 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i=a.reduce((y,A)=>y*A),l=_.getReshaped(s.shape,a,i),u=_.getPermuted(l.length,a.length),c=_.getReshapedPermuted(s.shape,a,i),d=_.getSliceBeginCoords(o,a.length),h=_.getSliceSize(c,o,a.length),p=Ft({inputs:{x:s},backend:n,attrs:{shape:l}}),f=Pr({inputs:{x:p},backend:n,attrs:{perm:u}}),m=Ft({inputs:{x:f},backend:n,attrs:{shape:c}}),g=fi({inputs:{x:m},backend:n,attrs:{begin:d,size:h}});return n.disposeIntermediateTensorInfo(p),n.disposeIntermediateTensorInfo(f),n.disposeIntermediateTensorInfo(m),g}var pie={kernelName:Xp,backendName:"cpu",kernelFunc:hie};function fie(e){let{inputs:t,backend:n,attrs:r}=e,{x:s,weights:a}=t,{size:o}=r,i=n.data.get(s.dataId).values,l=n.data.get(a.dataId).values,u=D5(i,l,a.dtype,a.shape,o);return n.makeTensorInfo([o],a.dtype,u)}var mie={kernelName:Iy,backendName:"cpu",kernelFunc:fie},gie=xt(Co,(e,t)=>{let n=t;return e>n.clipValueMax?n.clipValueMax:e{let{x:t}=e.inputs,n=e.backend,r=new 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Ft({inputs:{x:m},backend:n,attrs:{shape:[-1,g]}})}),c=u.map(m=>({vals:n.data.get(m.dataId).values,shape:m.shape}));o=_.computeOutShape(u.map(m=>m.shape),1);let d=u[0].shape[0]===1,h=KT(c,o,t[0].dtype,d),p=_.computeOutShape(i.map(m=>m.shape),a),f=n.makeTensorInfo(p,t[0].dtype,h);return u.forEach(m=>n.disposeIntermediateTensorInfo(m)),f}var vie={kernelName:Ec,backendName:"cpu",kernelFunc:pu};function zN(e){let{inputs:t,backend:n,attrs:r}=e,{x:s,filter:a}=t,{strides:o,pad:i,dataFormat:l,dilations:u,dimRoundingMode:c}=r;Te([s,a],"conv2d");let d=_.convertConv2DDataFormat(l),h=_.computeConv2DInfo(s.shape,a.shape,o,u,i,c,!1,d),p=h.filterHeight,f=h.filterWidth,m=h.dilationHeight,g=h.dilationWidth,y=h.padInfo.left,A=h.padInfo.top,x=h.dataFormat==="channelsLast",b=new Qt(h.outShape,s.dtype),v=k.computeStrides(s.shape),w=k.computeStrides(a.shape),I=v[0],T=x?v[1]:v[2],C=x?v[2]:1,M=x?1:v[1],$=b.strides[0],R=x?b.strides[1]:b.strides[2],N=x?b.strides[2]:1,F=x?1:b.strides[1],B=n.data.get(s.dataId).values,j=n.data.get(a.dataId).values,X=b.values;for(let Y=0;Y=h.inHeight)continue;let ge=de*w[0],be=ee+he*T;for(let Ee=0;Ee=h.inWidth)continue;let vt=ge+qe*w[1],ft=be+We*C,mt=vt;for(let dt=0;dt=u.inDepth)continue;let Y=j*C[0],ee=$+X*T[1];for(let oe=0;oe=u.inHeight)continue;let he=Y+ne*C[1],ge=ee+de*T[2];for(let be=0;be=u.inWidth)continue;let We=he+ze*C[2],vt=ge+qe*u.inChannels,ft=We;for(let mt=0;mtMath.cos(e)),Fie={kernelName:rl,backendName:"cpu",kernelFunc:Die},Mie=xt($c,e=>Math.cosh(e)),Oie={kernelName:$c,backendName:"cpu",kernelFunc:Mie};function Pie(e){let{inputs:t,backend:n,attrs:r}=e,{image:s,boxes:a,boxInd:o}=t,{cropSize:i,method:l,extrapolationValue:u}=r,[c,d,h,p]=s.shape,f=a.shape[0],[m,g]=i,y=Le([f,m,g,p],"float32"),A=n.data.get(a.dataId).values,x=n.data.get(o.dataId).values,b=n.data.get(s.dataId).values,v=k.computeStrides(s.shape),w=k.computeStrides(y.shape);for(let I=0;I=c)continue;let F=m>1?($-C)*(d-1)/(m-1):0,B=g>1?(R-M)*(h-1)/(g-1):0;for(let j=0;j1?C*(d-1)+j*F:.5*(C+$)*(d-1);if(X<0||X>d-1){for(let Y=0;Y1?M*(h-1)+se*B:.5*(M+R)*(h-1);if(ie<0||ie>h-1){for(let ge=0;ge1?M*(h-1)+Y*B:.5*(M+R)*(h-1);if(ee<0||ee>h-1){for(let ie=0;iey+f-A-1:(y,A)=>y+A;for(let y=0;y`Only NHWC dataFormat supported on CPU for depthToSpace. Got ${o}`),k.assert(a>1,()=>`blockSize should be > 1 for depthToSpace, but was: ${a}`);let i=s.shape[0],l=s.shape[1],u=s.shape[2],c=s.shape[3],d=l*a,h=u*a,p=c/(a*a),f=n.data.get(s.dataId).values,m=new Float32Array(i*d*h*p),g=0;for(let y=0;y`Error in depthwiseConv2d: Either strides or dilations must be 1. Got strides ${o} and dilations '${h}'`);let p=_.computeConv2DInfo(s.shape,a.shape,o,h,i,u,!0),{filterHeight:f,filterWidth:m,dilationHeight:g,dilationWidth:y,padInfo:A}=p,x=A.left,b=A.top,v=p.outChannels/p.inChannels,w=new Qt(p.outShape,s.dtype),I=n.data.get(s.dataId).values,T=n.data.get(a.dataId).values,C=w.values;for(let M=0;M=p.inHeight)continue;let Y=j*d[0],ee=$+X*c[1];for(let oe=0;oe=p.inWidth)continue;let he=Y+ne*d[1],ge=ee+de*p.inChannels,be=se,Ee=he;for(let $e=0;$e{let{x:r,filter:s}=e,{strides:a,pad:o,dilations:i}=n,l=t,u=l.data.get(r.dataId).values,c=r.shape.length,d=l.data.get(s.dataId).values,h=s.shape.length,{batchSize:p,inHeight:f,inWidth:m,inChannels:g,outHeight:y,outWidth:A,padInfo:x,strideHeight:b,strideWidth:v,filterHeight:w,filterWidth:I,dilationHeight:T,dilationWidth:C,outShape:M}=_.computeDilation2DInfo(r.shape,s.shape,a,o,"NHWC",i),$=k.sizeFromShape(M),R=M.length,N=k.getArrayFromDType(r.dtype,$);for(let B=0;B=0&&de=0&&gese&&(se=$e)}}}let ie=k.locToIndex([B,j,Y,oe],R,k.computeStrides(M));N[ie]=se}}}return{dataId:l.write(k.toTypedArray(N,r.dtype),M,r.dtype),shape:M,dtype:r.dtype}}},Qie={kernelName:Fy,backendName:"cpu",kernelFunc:({inputs:e,backend:t,attrs:n})=>{let{x:r,filter:s,dy:a}=e,{strides:o,pad:i,dilations:l}=n,u=t,c=k.toNestedArray(r.shape,u.data.get(r.dataId).values),d=k.toNestedArray(s.shape,u.data.get(s.dataId).values),{batchSize:h,inHeight:p,inWidth:f,inChannels:m,outHeight:g,outWidth:y,padInfo:A,strideHeight:x,strideWidth:b,filterHeight:v,filterWidth:w,dilationHeight:I,dilationWidth:T,outShape:C}=_.computeDilation2DInfo(r.shape,s.shape,o,i,"NHWC",l);k.assert(a.rank===C.length,()=>`Error in ${Fy}, dy must have the same rank as output ${C.length}, but got ${a.rank}`);let M=k.toNestedArray(C,u.data.get(a.dataId).values),$=k.makeZerosNestedTypedArray(s.shape,s.dtype);for(let N=0;N=0&&ne=0&&heee&&(ee=ge,oe=ie,se=de)}}}$[oe][se][Y]+=M[N][F][j][Y]}}}return{dataId:u.write(k.toTypedArray($,r.dtype),s.shape,s.dtype),shape:s.shape,dtype:s.dtype}}},ele={kernelName:Dy,backendName:"cpu",kernelFunc:({inputs:e,backend:t,attrs:n})=>{let{x:r,filter:s,dy:a}=e,{strides:o,pad:i,dilations:l}=n,u=t,c=k.toNestedArray(r.shape,u.data.get(r.dataId).values),d=k.toNestedArray(s.shape,u.data.get(s.dataId).values),{batchSize:h,inHeight:p,inWidth:f,inChannels:m,outHeight:g,outWidth:y,padInfo:A,strideHeight:x,strideWidth:b,filterHeight:v,filterWidth:w,dilationHeight:I,dilationWidth:T,outShape:C}=_.computeDilation2DInfo(r.shape,s.shape,o,i,"NHWC",l);k.assert(a.rank===C.length,()=>`Error in ${Dy}, dy must have the same rank as output ${C.length}, but got ${a.rank}`);let M=k.toNestedArray(C,u.data.get(a.dataId).values),$=k.makeZerosNestedTypedArray(r.shape,r.dtype);for(let N=0;N=0&&ne=0&&heee&&(ee=ge,oe=ne,se=he)}}}$[N][oe][se][Y]+=M[N][F][j][Y]}}}return{dataId:u.write(k.toTypedArray($,r.dtype),r.shape,r.dtype),shape:r.shape,dtype:r.dtype}}};function nh(e){let{inputs:t,backend:n,attrs:r}=e,{x:s}=t,{axis:a,keepDims:o}=r;Te(s,"sum");let i;s.dtype==="bool"?i=Ja({inputs:{x:s},backend:n,attrs:{dtype:"int32"}}):i=zs({inputs:{x:s},backend:n});let l=i.shape.length,u=k.parseAxisParam(a,i.shape),c=_.getAxesPermutation(u,l),d=u,h=i;c!=null&&(h=Pr({inputs:{x:i},backend:n,attrs:{perm:c}}),d=_.getInnerMostAxes(d.length,l)),_.assertAxesAreInnerMostDims("sum",d,h.shape.length);let[p,f]=_.computeOutAndReduceShapes(h.shape,d),m=_.upcastType(h.dtype,"int32"),g=Em(n,p,m),y=k.sizeFromShape(f),A=n.data.get(g.dataId).values,x=n.data.get(h.dataId).values;for(let b=0;b=0&&(h=nh({inputs:{x:h},backend:n,attrs:{axis:u[m]-(o.length-p),keepDims:!1}}),f.push(h)),p--)}for(let m of f)m!==h&&n.disposeIntermediateTensorInfo(m);return h}var rle={kernelName:My,backendName:"cpu",kernelFunc:nle};function sle(e){let{inputs:t,backend:n}=e,{dy:r,y:s}=t;Te([r,s],"eluGrad");let a=new Float32Array(k.sizeFromShape(s.shape)),o=n.data.get(s.dataId).values,i=n.data.get(r.dataId).values;for(let l=0;l=1?a[l]=i[l]:a[l]=i[l]*(u+1)}return n.makeTensorInfo(s.shape,"float32",a)}var ale={kernelName:Oy,backendName:"cpu",kernelFunc:sle},ole=_.ERF_P,ile=_.ERF_A1,lle=_.ERF_A2,ule=_.ERF_A3,cle=_.ERF_A4,dle=_.ERF_A5,hle=xt(Fc,e=>{let t=Math.sign(e),n=Math.abs(e),r=1/(1+ole*n);return t*(1-((((dle*r+cle)*r+ule)*r+lle)*r+ile)*r*Math.exp(-n*n))}),ple={kernelName:Fc,backendName:"cpu",kernelFunc:hle};function _m(e){let{inputs:t,backend:n,attrs:r}=e,{input:s}=t,{dim:a}=r,o=s.shape.length,i=s.shape.slice(),l=a;return a<0&&(k.assert(-(o+1)<=a,()=>`Axis must be in the interval [${-(o+1)}, ${o}]`),l=o+a+1),i.splice(l,0,1),Ft({inputs:{x:s},backend:n,attrs:{shape:i}})}var fle={kernelName:Mc,backendName:"cpu",kernelFunc:_m},mle=nn((e,t)=>e/t),B5=bn(ol,mle),W5={kernelName:ol,backendName:"cpu",kernelFunc:B5};function BN(e,t,n){let r=e.shape,s=r[0],a=r[1],o=n.data.get(e.dataId),i=o.complexTensorInfos.real,l=o.complexTensorInfos.imag,u=[s,a],c=k.sizeFromShape(u),d=k.getTypedArrayFromDType("float32",c),h=k.getTypedArrayFromDType("float32",c);for(let g=0;g{let{image:r}=e,s=n,a=k.getTypedArrayFromDType(r.dtype,k.sizeFromShape(r.shape)),[o,i,l,u]=r.shape,c=s.data.get(r.dataId).values;for(let h=0;h=0&&vMath.floor(e/t)),Sle=bn(ul,Ile,null,"int32"),Tle={kernelName:ul,backendName:"cpu",kernelFunc:Sle};function Nle(e){let{inputs:t,backend:n,attrs:r}=e,{x:s,filter:a,bias:o,preluActivationWeights:i}=t,{strides:l,pad:u,dataFormat:c,dilations:d,dimRoundingMode:h,activation:p,leakyreluAlpha:f}=r,m=zN({inputs:{x:s,filter:a},backend:n,attrs:{strides:l,pad:u,dataFormat:c,dilations:d,dimRoundingMode:h}});if(o){let g=m;m=th({inputs:{a:m,b:o},backend:n}),n.disposeIntermediateTensorInfo(g)}if(p){let g=m;m=z5(n,m,p,i,f),n.disposeIntermediateTensorInfo(g)}return m}var Cle={kernelName:Bl,backendName:"cpu",kernelFunc:Nle};function Ele(e){let{inputs:t,backend:n,attrs:r}=e,{x:s,filter:a,bias:o,preluActivationWeights:i}=t,{strides:l,pad:u,dataFormat:c,dilations:d,dimRoundingMode:h,activation:p,leakyreluAlpha:f}=r,m=LN({inputs:{x:s,filter:a},backend:n,attrs:{strides:l,pad:u,dataFormat:c,dilations:d,dimRoundingMode:h}});if(o){let g=m;m=th({inputs:{a:m,b:o},backend:n}),n.disposeIntermediateTensorInfo(g)}if(p){let g=m;m=z5(n,m,p,i,f),n.disposeIntermediateTensorInfo(g)}return m}var $le={kernelName:Wl,backendName:"cpu",kernelFunc:Ele};function _le(e){let{inputs:t,backend:n}=e,{params:r,indices:s}=t,a=k.sizeFromShape(r.shape),o=s.shape,i=o[o.length-1],[l,u,c,d]=_.prepareAndValidate(r,s);if(u===0)return n.makeTensorInfo(l,r.dtype,[]);let h=n.data.get(s.dataId).values,p=n.bufferSync(r),f=tN(h,p,r.dtype,u,i,c,d,r.shape,a);return n.makeTensorInfo(l,r.dtype,f.values)}var Rle={kernelName:zc,backendName:"cpu",kernelFunc:_le};function Dle(e){let{inputs:t,backend:n,attrs:r}=e,{x:s,indices:a}=t,{axis:o,batchDims:i}=r;Te([s,a],"gatherV2");let l=i;i==null&&(l=0);let u=k.sizeFromShape(a.shape),c=k.parseAxisParam(o,s.shape)[0],d=_.segment_util.collectGatherOpShapeInfo(s,a,c,l),h=Ft({inputs:{x:s},backend:n,attrs:{shape:[d.batchSize,d.outerSize,d.dimSize,d.sliceSize]}}),p=Ft({inputs:{x:a},backend:n,attrs:{shape:[d.batchSize,u/d.batchSize]}}),f=[d.batchSize,d.outerSize,u/d.batchSize,d.sliceSize],m=n.bufferSync(p),g=n.bufferSync(h),y=nN(g,m,f);return n.disposeIntermediateTensorInfo(h),n.disposeIntermediateTensorInfo(p),n.makeTensorInfo(d.outputShape,y.dtype,y.values)}var Fle={kernelName:Pc,backendName:"cpu",kernelFunc:Dle};function Mle(e){let{inputs:t,backend:n}=e,{input:r}=t,s=k.sizeFromShape(r.shape),a=r.shape[r.shape.length-1],o=s/a,i=Ft({inputs:{x:r},backend:n,attrs:{shape:[o,a]}}),l=BN(i,!0,n),u=Ft({inputs:{x:l},backend:n,attrs:{shape:r.shape}});return n.disposeIntermediateTensorInfo(i),n.disposeIntermediateTensorInfo(l),u}var Ole={kernelName:zy,backendName:"cpu",kernelFunc:Mle},Ple=xt(Lc,e=>Number.isFinite(e)?1:0,"bool"),zle={kernelName:Lc,backendName:"cpu",kernelFunc:Ple},Lle=xt(Bc,e=>Math.abs(e)===Infinity?1:0,"bool"),Ble={kernelName:Bc,backendName:"cpu",kernelFunc:Lle},Wle=xt(Wc,e=>Number.isNaN(e)?1:0,"bool"),Vle={kernelName:Wc,backendName:"cpu",kernelFunc:Wle};function Ule(e){let{backend:t,attrs:n}=e,{start:r,stop:s,num:a}=n,o=iN(r,s,a);return t.makeTensorInfo([o.length],"float32",o)}var Hle={kernelName:By,backendName:"cpu",kernelFunc:Ule},Gle=xt(Vc,e=>Math.log1p(e)),jle={kernelName:Vc,backendName:"cpu",kernelFunc:Gle},qle=nn((e,t)=>e&&t),Kle=bn(Uc,qle,null,"bool"),Xle={kernelName:Uc,backendName:"cpu",kernelFunc:Kle},Zle=xt(ef,e=>e?0:1,"bool"),Yle={kernelName:ef,backendName:"cpu",kernelFunc:Zle},Jle=nn((e,t)=>e||t),Qle=bn(tf,Jle,null,"bool"),eue={kernelName:tf,backendName:"cpu",kernelFunc:Qle};function tue(e){let{inputs:t,backend:n,attrs:r}=e,{x:s}=t,{depthRadius:a,bias:o,alpha:i,beta:l}=r;Te(s,"LRN");let u=s.shape[3],c=u-1,d=n.data.get(s.dataId).values,h=k.sizeFromShape(s.shape),p=new Float32Array(h);function f(m){let g=m%u,y=m-g+Math.max(0,g-a),A=m-g+Math.min(g+a,c),x=0;for(;y<=A;y++){let b=d[y];x+=b*b}return x}for(let m=0;m`Error in maxPool: Either strides or dilations must be 1. Got strides ${o} and dilations '${u}'`);let c=_.computePool2DInfo(s.shape,a,o,u,i,l),d;if(c.filterWidth===1&&c.filterHeight===1&&k.arraysEqual(c.inShape,c.outShape))d=zs({inputs:{x:s},backend:n});else{let h=n.data.get(s.dataId).values,p=k.computeStrides(s.shape),f=L5(h,s.shape,s.dtype,p,c,"max");d=n.makeTensorInfo(c.outShape,s.dtype,f.values)}return d}var iue={kernelName:yl,backendName:"cpu",kernelFunc:oue};function lue(e){let{inputs:t,backend:n,attrs:r}=e,{x:s}=t,{filterSize:a,strides:o,pad:i,dimRoundingMode:l,dataFormat:u}=r;Te(s,"maxPool3d");let c=_.computePool3DInfo(s.shape,a,o,1,i,l,u),d=n.data.get(s.dataId).values,h=PN(d,s.shape,s.dtype,k.computeStrides(s.shape),c,"max");return n.makeTensorInfo(h.shape,"float32",h.values)}var uue={kernelName:rf,backendName:"cpu",kernelFunc:lue};function cue(e){let{inputs:t,backend:n,attrs:r}=e,{dy:s,input:a}=t,{filterSize:o,strides:i,pad:l,dimRoundingMode:u}=r;Te([s,a],"maxPool3DGrad");let c=_.computePool3DInfo(a.shape,o,i,1,l,u),d=n.bufferSync(a),h=tie(d,c),p=c.strideDepth,f=c.strideHeight,m=c.strideWidth,g=c.dilationDepth,y=c.dilationHeight,A=c.dilationWidth,x=c.effectiveFilterDepth,b=c.effectiveFilterHeight,v=c.effectiveFilterWidth,w=x-1-c.padInfo.front,I=v-1-c.padInfo.left,T=b-1-c.padInfo.top,C=Le(a.shape,"float32"),M=n.bufferSync(s);for(let $=0;$=c.outDepth||Math.floor(se)!==se))for(let ie=0;ie=c.outHeight||Math.floor(ne)!==ne))for(let de=0;de=c.outWidth||Math.floor(he)!==he)continue;let ge=x*b*v-1-h.get($,se,ne,he,R),be=oe*b*v+ie*v+de,Ee=ge===be?1:0;if(Ee===0)continue;ee+=M.get($,se,ne,he,R)*Ee}}}C.set(ee,$,N,F,B,R)}return n.makeTensorInfo(C.shape,C.dtype,C.values)}var due={kernelName:Uy,backendName:"cpu",kernelFunc:cue};function hue(e){let{inputs:t,backend:n,attrs:r}=e,{dy:s,input:a,output:o}=t,i=a;Te([a,o],"maxPoolGrad");let{filterSize:l,strides:u,pad:c,dimRoundingMode:d}=r,h=_.computePool2DInfo(i.shape,l,u,1,c,d),p=n.data.get(i.dataId).values,f=Le(h.outShape,i.dtype,ON(p,i.shape,i.dtype,h).values),m=h.strideHeight,g=h.strideWidth,y=h.dilationHeight,A=h.dilationWidth,x=h.effectiveFilterHeight,b=h.effectiveFilterWidth,v=b-1-h.padInfo.left,w=x-1-h.padInfo.top,I=Le(i.shape,"float32"),T=n.data.get(s.dataId).values,C=Le(s.shape,"float32",T);for(let M=0;M=h.outHeight||Math.floor(Y)!==Y))for(let ee=0;ee=h.outWidth||Math.floor(oe)!==oe)continue;let se=x*b-1-f.get(M,Y,oe,$),ie=X*b+ee,ne=se===ie?1:0;if(ne===0)continue;j+=C.get(M,Y,oe,$)*ne}}I.set(j,M,R,N,$)}return n.makeTensorInfo(I.shape,I.dtype,I.values)}var pue={kernelName:Vy,backendName:"cpu",kernelFunc:hue};function fue(e,t,n,r,s){let a=k.computeStrides(t),o=L5(e,t,n,a,s,"max"),i=ON(e,t,n,s,!0,r);return[o.values,i.values]}var mue={kernelName:Hy,backendName:"cpu",kernelFunc:({inputs:e,attrs:t,backend:n})=>{let{x:r}=e,{filterSize:s,strides:a,pad:o,includeBatchInIndex:i}=t,l=n;Te(r,"MaxPoolWithArgmax");let u=l.data.get(r.dataId).values,c=_.computePool2DInfo(r.shape,s,a,[1,1],o),[d,h]=fue(u,r.shape,r.dtype,i,c),p=l.write(d,c.outShape,r.dtype),f=l.write(h,c.outShape,r.dtype);return[{dataId:p,shape:c.outShape,dtype:r.dtype},{dataId:f,shape:c.outShape,dtype:"int32"}]}};function gue(e){let{inputs:t,backend:n,attrs:r}=e,{x:s}=t,{axis:a,keepDims:o}=r,i=k.parseAxisParam(a,s.shape),u=_.computeOutAndReduceShapes(s.shape,i)[1],c=k.sizeFromShape(u),d=[],h=n.makeTensorInfo([],"float32",new Float32Array([c]));d.push(h);let p=Ja({inputs:{x:s},backend:n,attrs:{dtype:"float32"}});d.push(p);let f=B5({inputs:{a:p,b:h},backend:n});d.push(f);let m=nh({inputs:{x:f},backend:n,attrs:{axis:a,keepDims:o}});return d.forEach(g=>n.disposeIntermediateTensorInfo(g)),m}var yue={kernelName:Al,backendName:"cpu",kernelFunc:gue};function Aue(e){let{inputs:t,backend:n,attrs:r}=e,{x:s}=t,{axis:a,keepDims:o}=r;Te(s,"min");let i=k.parseAxisParam(a,s.shape),l=i,u=_.getAxesPermutation(l,s.shape.length),c=s;u!=null&&(c=Pr({inputs:{x:s},backend:n,attrs:{perm:u}}),l=_.getInnerMostAxes(l.length,s.shape.length)),_.assertAxesAreInnerMostDims("min",l,c.shape.length);let[d,h]=_.computeOutAndReduceShapes(c.shape,l),p=k.sizeFromShape(h),f=k.makeZerosTypedArray(k.sizeFromShape(d),c.dtype),m=n.data.get(c.dataId).values;for(let y=0;yx[0]+s.shape[b]+x[1]),l=a.map(x=>x[0]),u=a.map((x,b)=>x[0]+s.shape[b]),c=o==="reflect"?0:1,d=n.data.get(s.dataId).values,h=s.shape.length,p=k.computeStrides(s.shape),f=k.sizeFromShape(i),m=i.length,g=k.computeStrides(i),y=k.getTypedArrayFromDType(s.dtype,f);for(let x=0;x=u[w]&&(b[w]=(u[w]-1)*2-b[w]+c);b=b.map((w,I)=>w-l[I]);let v=k.locToIndex(b,h,p);y[x]=d[v]}return{dataId:n.write(y,i,s.dtype),shape:i,dtype:s.dtype}}var vue={kernelName:bl,backendName:"cpu",kernelFunc:bue},wue=nn((e,t)=>{let n=e%t;return e<0&&t<0||e>=0&&t>=0?n:(n+t)%t}),kue=bn(Hc,wue),Iue={kernelName:Hc,backendName:"cpu",kernelFunc:kue},Sue=Ks(t2());function VN(e){let{inputs:t,backend:n,attrs:r}=e,{logits:s}=t,{dim:a}=r,o=s.shape.length,i=a;if(i===-1&&(i=o-1),i!==o-1)throw Error(`Softmax along a non-last dimension is not yet supported. Logits was rank ${o} and dim was ${i}`);let l=k.parseAxisParam([i],s.shape),u=WN({inputs:{x:s},backend:n,attrs:{reductionIndices:l,keepDims:!1}}),c=_.expandShapeToKeepDim(u.shape,l),d=Ft({inputs:{x:u},backend:n,attrs:{shape:c}}),h=P5({inputs:{a:s,b:d},backend:n}),p=JT({inputs:{x:h},backend:n}),f=nh({inputs:{x:p},backend:n,attrs:{axis:l,keepDims:!1}}),m=Ft({inputs:{x:f},backend:n,attrs:{shape:c}}),g=B5({inputs:{a:p,b:m},backend:n});return n.disposeIntermediateTensorInfo(u),n.disposeIntermediateTensorInfo(d),n.disposeIntermediateTensorInfo(h),n.disposeIntermediateTensorInfo(p),n.disposeIntermediateTensorInfo(f),n.disposeIntermediateTensorInfo(m),g}var Tue={kernelName:Ml,backendName:"cpu",kernelFunc:VN};function Nue(e){let{inputs:t,backend:n,attrs:r}=e,{logits:s}=t,{numSamples:a,seed:o,normalized:i}=r;Te(s,"multinomial");let 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A=0;Aw+l[I]),v=k.locToIndex(b,f,m);g[v]=u[A]}return{dataId:n.write(g,i,s.dtype),shape:i,dtype:s.dtype}}var GN={kernelName:kl,backendName:"cpu",kernelFunc:Uue},Hue=nn((e,t)=>Math.pow(e,t)),Gue=bn(Il,Hue),jue={kernelName:Il,backendName:"cpu",kernelFunc:Gue};function que(e){let{backend:t,attrs:n}=e,{start:r,stop:s,dtype:a,step:o}=n,i=mN(r,s,o,a);return t.makeTensorInfo([i.length],a,i)}var Kue={kernelName:sf,backendName:"cpu",kernelFunc:que},Xue=xt(Jc,e=>1/e),Zue={kernelName:Jc,backendName:"cpu",kernelFunc:Xue};function Yue(e){let{inputs:t,backend:n,attrs:r}=e,{images:s}=t,{alignCorners:a,halfPixelCenters:o,size:i}=r;Te(s,"resizeBilinear");let l=k.computeStrides(s.shape),[u,c]=i,[d,h,p,f]=s.shape,m=n.data.get(s.dataId).values,g=new Float32Array(k.sizeFromShape([d,u,c,f])),y=[a&&u>1?h-1:h,a&&c>1?p-1:p],A=[a&&u>1?u-1:u,a&&c>1?c-1:c],x=0,b=y[0]/A[0],v=y[1]/A[1];for(let w=0;w1?u-1:u,o&&p>1?c-1:c],g=[o&&h>1?h-1:h,o&&p>1?p-1:p],y=m[0]/g[0],A=m[1]/g[1],x=n.data.get(a.dataId).values,b=0;for(let 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e.downloadTextureFormat}function NC(e,t,n,r){let[s,a]=ah(t,n);return ch(e,s,a,Q5(r),e.RGBA,e.UNSIGNED_BYTE)}function eb(e){return e.internalFormatPackedFloat}function CC(e,t,n,r){let[s,a]=fu(t,n);return ch(e,s,a,eb(r),e.RGBA,e.FLOAT)}function tb(e){return e.internalFormatPackedHalfFloat}function EC(e,t,n,r){let[s,a]=fu(t,n);return ch(e,s,a,tb(r),e.RGBA,r.textureTypeHalfFloat)}function $C(e,t,n){let r=0,s=3*4,a=3*4+2*4;return Ie(e,()=>e.bindBuffer(e.ARRAY_BUFFER,n)),j5(e,t,"clipSpacePos",n,3,a,r)&&j5(e,t,"uv",n,2,a,s)}function _C(e,t,n,r,s,a){Ie(e,()=>e.bindTexture(e.TEXTURE_2D,t));let o,i,l;s instanceof Uint8Array?(o=new Uint8Array(n*r*4),i=e.UNSIGNED_BYTE,l=e.RGBA):(o=new Float32Array(n*r*4),i=e.FLOAT,l=a.internalFormatPackedFloat),o.set(s),Ie(e,()=>e.texImage2D(e.TEXTURE_2D,0,l,n,r,0,e.RGBA,i,o)),Ie(e,()=>e.bindTexture(e.TEXTURE_2D,null))}function RC(e,t,n){Ie(e,()=>e.bindTexture(e.TEXTURE_2D,t)),n.data instanceof Uint8Array?Ie(e,()=>e.texImage2D(e.TEXTURE_2D,0,e.RGBA,n.width,n.height,0,e.RGBA,e.UNSIGNED_BYTE,n.data)):Ie(e,()=>e.texImage2D(e.TEXTURE_2D,0,e.RGBA,e.RGBA,e.UNSIGNED_BYTE,n)),Ie(e,()=>e.bindTexture(e.TEXTURE_2D,null))}function DC(e,t,n,r){let s=e.createBuffer();Ie(e,()=>e.bindBuffer(e.PIXEL_PACK_BUFFER,s));let i=4*4*t*n;return Ie(e,()=>e.bufferData(e.PIXEL_PACK_BUFFER,i,e.STREAM_READ)),Ie(e,()=>e.readPixels(0,0,n,t,e.RGBA,e.FLOAT,0)),Ie(e,()=>e.bindBuffer(e.PIXEL_PACK_BUFFER,null)),s}function FC(e,t,n){let r=e,s=new Float32Array(n);return r.bindBuffer(r.PIXEL_PACK_BUFFER,t),r.getBufferSubData(r.PIXEL_PACK_BUFFER,0,s),r.bindBuffer(r.PIXEL_PACK_BUFFER,null),s}function MC(e,t,n,r){let[s,a]=ah(t,n),o=4,i=new Uint8Array(Sde(t*n,o));return Ie(e,()=>e.readPixels(0,0,s,a,r.downloadTextureFormat,e.UNSIGNED_BYTE,i)),new Float32Array(i.buffer)}function OC(e,t,n,r,s,a,o,i){let l=e,u=new Float32Array(Tde(a,o));return l.bindBuffer(l.PIXEL_PACK_BUFFER,t),l.getBufferSubData(l.PIXEL_PACK_BUFFER,0,u),l.bindBuffer(l.PIXEL_PACK_BUFFER,null),u}function PC(e,t,n){let r=new Float32Array(t*n*4);return Ie(e,()=>e.readPixels(0,0,n,t,e.RGBA,e.FLOAT,r)),r}var Bm=class{constructor(e){this.outputTexture=null,this.program=null,this.disposed=!1,this.vertexAttrsAreBound=!1,this.itemsToPoll=[];let t=ae().getNumber("WEBGL_VERSION");e!=null?(this.gl=e,Dm(t,e)):this.gl=Ls(t);let n="WEBGL_color_buffer_float",r="EXT_color_buffer_half_float";if(ae().getNumber("WEBGL_VERSION")===1){let s="OES_texture_float",a="OES_texture_half_float";if(this.textureFloatExtension=ih(this.gl,s),Lr(this.gl,a))this.textureHalfFloatExtension=ih(this.gl,a);else if(ae().get("WEBGL_FORCE_F16_TEXTURES"))throw new Error("GL context does not support half float textures, yet the environment flag WEBGL_FORCE_F16_TEXTURES is set to true.");if(this.colorBufferFloatExtension=this.gl.getExtension(n),Lr(this.gl,r))this.colorBufferHalfFloatExtension=ih(this.gl,r);else if(ae().get("WEBGL_FORCE_F16_TEXTURES"))throw new Error("GL context does not support color renderable half floats, yet the environment flag WEBGL_FORCE_F16_TEXTURES is set to true.")}else if(n="EXT_color_buffer_float",Lr(this.gl,n))this.colorBufferFloatExtension=this.gl.getExtension(n);else if(Lr(this.gl,r))this.colorBufferHalfFloatExtension=this.gl.getExtension(r);else throw new Error("GL context does not support color renderable floats");this.vertexBuffer=kC(this.gl),this.indexBuffer=IC(this.gl),this.framebuffer=oC(this.gl),this.textureConfig=G5(this.gl,this.textureHalfFloatExtension)}get debug(){return ae().getBool("DEBUG")}dispose(){if(this.disposed)return;this.program!=null&&console.warn("Disposing a GPGPUContext that still has a bound WebGLProgram. This is probably a resource leak, delete the program with GPGPUContext.deleteProgram before disposing."),this.outputTexture!=null&&console.warn("Disposing a GPGPUContext that still has a bound output matrix texture. This is probably a resource leak, delete the output matrix texture with GPGPUContext.deleteMatrixTexture before disposing.");let e=this.gl;Ie(e,()=>e.finish()),Ie(e,()=>e.bindFramebuffer(e.FRAMEBUFFER,null)),Ie(e,()=>e.deleteFramebuffer(this.framebuffer)),Ie(e,()=>e.bindBuffer(e.ARRAY_BUFFER,null)),Ie(e,()=>e.bindBuffer(e.ELEMENT_ARRAY_BUFFER,null)),Ie(e,()=>e.deleteBuffer(this.indexBuffer)),this.disposed=!0}createFloat32MatrixTexture(e,t){return this.throwIfDisposed(),SC(this.gl,e,t,this.textureConfig)}createFloat16MatrixTexture(e,t){return this.throwIfDisposed(),TC(this.gl,e,t,this.textureConfig)}createUnsignedBytesMatrixTexture(e,t){return this.throwIfDisposed(),NC(this.gl,e,t,this.textureConfig)}uploadPixelDataToTexture(e,t){this.throwIfDisposed(),RC(this.gl,e,t)}uploadDenseMatrixToTexture(e,t,n,r){this.throwIfDisposed(),_C(this.gl,e,t,n,r,this.textureConfig)}createFloat16PackedMatrixTexture(e,t){return this.throwIfDisposed(),EC(this.gl,e,t,this.textureConfig)}createPackedMatrixTexture(e,t){return this.throwIfDisposed(),CC(this.gl,e,t,this.textureConfig)}deleteMatrixTexture(e){this.throwIfDisposed(),this.outputTexture===e&&(q5(this.gl,this.framebuffer),this.outputTexture=null),Ie(this.gl,()=>this.gl.deleteTexture(e))}downloadByteEncodedFloatMatrixFromOutputTexture(e,t,n){return this.downloadMatrixDriver(e,()=>MC(this.gl,t,n,this.textureConfig))}downloadPackedMatrixFromBuffer(e,t,n,r,s,a){return OC(this.gl,e,t,n,r,s,a,this.textureConfig)}downloadFloat32MatrixFromBuffer(e,t){return FC(this.gl,e,t)}createBufferFromTexture(e,t,n){this.bindTextureToFrameBuffer(e);let r=DC(this.gl,t,n,this.textureConfig);return this.unbindTextureToFrameBuffer(),r}createAndWaitForFence(){let e=this.createFence(this.gl);return this.pollFence(e)}createFence(e){let t,n;if(ae().getBool("WEBGL_FENCE_API_ENABLED")){let r=e,s=r.fenceSync(r.SYNC_GPU_COMMANDS_COMPLETE,0);e.flush(),n=()=>{let a=r.clientWaitSync(s,0,0);return a===r.ALREADY_SIGNALED||a===r.CONDITION_SATISFIED},t=s}else ae().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")>0?(t=this.beginQuery(),this.endQuery(),n=()=>this.isQueryAvailable(t,ae().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))):n=()=>!0;return{query:t,isFencePassed:n}}downloadMatrixFromPackedTexture(e,t,n){return this.downloadMatrixDriver(e,()=>PC(this.gl,t,n))}createProgram(e){this.throwIfDisposed();let t=this.gl,n=QN(t,e);this.vertexShader==null&&(this.vertexShader=wC(t));let r=eC(t);return Ie(t,()=>t.attachShader(r,this.vertexShader)),Ie(t,()=>t.attachShader(r,n)),tC(t,r),this.debug&&Fm(t,r),this.vertexAttrsAreBound||(this.setProgram(r),this.vertexAttrsAreBound=$C(t,this.program,this.vertexBuffer)),r}deleteProgram(e){this.throwIfDisposed(),e===this.program&&(this.program=null),e!=null&&Ie(this.gl,()=>this.gl.deleteProgram(e))}setProgram(e){this.throwIfDisposed(),this.program=e,this.program!=null&&this.debug&&Fm(this.gl,this.program),Ie(this.gl,()=>this.gl.useProgram(e))}getUniformLocation(e,t,n=!0){return this.throwIfDisposed(),n?lC(this.gl,e,t):uC(this.gl,e,t)}getAttributeLocation(e,t){return this.throwIfDisposed(),Ie(this.gl,()=>this.gl.getAttribLocation(e,t))}getUniformLocationNoThrow(e,t){return this.throwIfDisposed(),this.gl.getUniformLocation(e,t)}setInputMatrixTexture(e,t,n){this.throwIfDisposed(),this.throwIfNoProgram(),cC(this.gl,e,t,n)}setOutputMatrixTexture(e,t,n){this.setOutputMatrixTextureDriver(e,n,t)}setOutputPackedMatrixTexture(e,t,n){this.throwIfDisposed();let[r,s]=fu(t,n);this.setOutputMatrixTextureDriver(e,r,s)}setOutputMatrixWriteRegion(e,t,n,r){this.setOutputMatrixWriteRegionDriver(n,e,r,t)}setOutputPackedMatrixWriteRegion(e,t,n,r){throw new Error("setOutputPackedMatrixWriteRegion not implemented.")}debugValidate(){this.program!=null&&Fm(this.gl,this.program),lh(this.gl)}executeProgram(){this.throwIfDisposed(),this.throwIfNoProgram();let e=this.gl;this.debug&&this.debugValidate(),Ie(e,()=>e.drawElements(e.TRIANGLES,6,e.UNSIGNED_SHORT,0))}blockUntilAllProgramsCompleted(){this.throwIfDisposed(),Ie(this.gl,()=>this.gl.finish())}getQueryTimerExtension(){return this.disjointQueryTimerExtension==null&&(this.disjointQueryTimerExtension=ih(this.gl,ae().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")===2?"EXT_disjoint_timer_query_webgl2":"EXT_disjoint_timer_query")),this.disjointQueryTimerExtension}getQueryTimerExtensionWebGL2(){return this.getQueryTimerExtension()}getQueryTimerExtensionWebGL1(){return this.getQueryTimerExtension()}beginQuery(){if(ae().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")===2){let n=this.gl,r=this.getQueryTimerExtensionWebGL2(),s=n.createQuery();return n.beginQuery(r.TIME_ELAPSED_EXT,s),s}let e=this.getQueryTimerExtensionWebGL1(),t=e.createQueryEXT();return e.beginQueryEXT(e.TIME_ELAPSED_EXT,t),t}endQuery(){if(ae().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")===2){let t=this.gl,n=this.getQueryTimerExtensionWebGL2();t.endQuery(n.TIME_ELAPSED_EXT);return}let e=this.getQueryTimerExtensionWebGL1();e.endQueryEXT(e.TIME_ELAPSED_EXT)}async waitForQueryAndGetTime(e){return await k.repeatedTry(()=>this.disposed||this.isQueryAvailable(e,ae().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))),this.getQueryTime(e,ae().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))}getQueryTime(e,t){if(t===0)return null;if(t===2){let n=this.gl;return n.getQueryParameter(e,n.QUERY_RESULT)/1e6}else{let n=this.getQueryTimerExtensionWebGL1();return n.getQueryObjectEXT(e,n.QUERY_RESULT_EXT)/1e6}}isQueryAvailable(e,t){if(t===0)return!0;if(t===2){let n=this.gl,r=this.getQueryTimerExtensionWebGL2(),s=n.getQueryParameter(e,n.QUERY_RESULT_AVAILABLE);return this.disjoint==null&&(this.disjoint=this.gl.getParameter(r.GPU_DISJOINT_EXT)),s&&!this.disjoint}else{let n=this.getQueryTimerExtensionWebGL1(),r=n.getQueryObjectEXT(e,n.QUERY_RESULT_AVAILABLE_EXT);return this.disjoint==null&&(this.disjoint=this.gl.getParameter(n.GPU_DISJOINT_EXT)),r&&!this.disjoint}}pollFence(e){return new Promise(t=>{this.addItemToPoll(()=>e.isFencePassed(),()=>t())})}pollItems(){let e=Hde(this.itemsToPoll.map(t=>t.isDoneFn));for(let t=0;t<=e;++t){let{resolveFn:n}=this.itemsToPoll[t];n()}this.itemsToPoll=this.itemsToPoll.slice(e+1)}addItemToPoll(e,t){this.itemsToPoll.push({isDoneFn:e,resolveFn:t}),!(this.itemsToPoll.length>1)&&k.repeatedTry(()=>(this.pollItems(),this.itemsToPoll.length===0))}bindTextureToFrameBuffer(e){this.throwIfDisposed(),Mm(this.gl,e,this.framebuffer),this.debug&&lh(this.gl)}unbindTextureToFrameBuffer(){this.outputTexture!=null?(Mm(this.gl,this.outputTexture,this.framebuffer),this.debug&&lh(this.gl)):q5(this.gl,this.framebuffer)}downloadMatrixDriver(e,t){this.bindTextureToFrameBuffer(e);let n=t();return this.unbindTextureToFrameBuffer(),n}setOutputMatrixTextureDriver(e,t,n){this.throwIfDisposed();let r=this.gl;Mm(r,e,this.framebuffer),this.debug&&lh(r),this.outputTexture=e,Ie(r,()=>r.viewport(0,0,t,n)),Ie(r,()=>r.scissor(0,0,t,n))}setOutputMatrixWriteRegionDriver(e,t,n,r){this.throwIfDisposed(),Ie(this.gl,()=>this.gl.scissor(e,t,n,r))}throwIfDisposed(){if(this.disposed)throw new Error("Attempted to use disposed GPGPUContext.")}throwIfNoProgram(){if(this.program==null)throw new Error("No GPU program is currently set.")}};function Hde(e){let t=0;for(;t{let m=k.sizeFromShape(f.shapeInfo.logicalShape);f.shapeInfo.isUniform?s.push(`uniform float ${f.name}${m>1?`[${m}]`:""};`):(s.push(`uniform sampler2D ${f.name};`),s.push(`uniform int offset${f.name};`))});let a=s.join(` `),o=e.map(f=>jde(f,t,r)).join(` `),i=t.texShape,l=Wn(),u=Xde(l),c,d,h=Jde(l);return t.isPacked?(c=qde(t.logicalShape,i),d=Yde(l)):(c=Kde(t.logicalShape,i),d=Zde(l)),r&&(h+=nhe),[h,u,d,a,c,o,n].join(` `)}function gu(e){let t=e.shapeInfo.logicalShape;switch(t.length){case 0:return fhe(e);case 1:return ghe(e);case 2:return Ahe(e);case 3:return bhe(e);case 4:return whe(e);case 5:return khe(e);case 6:return Ihe(e);default:throw new Error(`${t.length}-D input sampling is not yet supported`)}}function LC(e){switch(e.shapeInfo.logicalShape.length){case 0:return phe(e);case 1:return mhe(e);case 2:return yhe(e);case 3:return xhe(e);default:return vhe(e)}}function jde(e,t,n=!1){let r="";n?r+=LC(e):r+=gu(e);let s=e.shapeInfo.logicalShape,a=t.logicalShape;return s.length<=a.length&&(n?r+=She(e,t):r+=The(e,t)),r}function qde(e,t){switch(e.length){case 0:return BC();case 1:return rhe(e,t);case 2:return dhe(e,t);case 3:return ahe(e,t);default:return ihe(e,t)}}function Kde(e,t){switch(e.length){case 0:return BC();case 1:return she(e,t);case 2:return hhe(e,t);case 3:return ohe(e,t);case 4:return lhe(e,t);case 5:return uhe(e,t);case 6:return che(e,t);default:throw new Error(`${e.length}-D output sampling is not yet supported`)}}function Xde(e){return` float sampleTexture(sampler2D textureSampler, vec2 uv) { return ${e.texture2D}(textureSampler, uv).r; } `}function Zde(e){return` void setOutput(float val) { ${e.output} = vec4(val, 0, 0, 0); } `}function Yde(e){return` void setOutput(vec4 val) { ${e.output} = val; } `}function Jde(e){return`${e.version} precision highp float; precision highp int; precision highp sampler2D; ${e.varyingFs} vec2 resultUV; ${e.defineOutput} const vec2 halfCR = vec2(0.5, 0.5); struct ivec5 { int x; int y; int z; int w; int u; }; struct ivec6 { int x; int y; int z; int w; int u; int v; }; uniform float NAN; ${e.defineSpecialNaN} ${e.defineSpecialInf} ${e.defineRound} int imod(int x, int y) { return x - y * (x / y); } int idiv(int a, int b, float sign) { int res = a / b; int mod = imod(a, b); if (sign < 0. && mod != 0) { res -= 1; } return res; } //Based on the work of Dave Hoskins //https://www.shadertoy.com/view/4djSRW #define HASHSCALE1 443.8975 float random(float seed){ vec2 p = resultUV * seed; vec3 p3 = fract(vec3(p.xyx) * HASHSCALE1); p3 += dot(p3, p3.yzx + 19.19); return fract((p3.x + p3.y) * p3.z); } ${Qde} ${ehe} ${the} `}var Qde=` vec2 uvFromFlat(int texNumR, int texNumC, int index) { int texR = index / texNumC; int texC = index - texR * texNumC; return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR); } vec2 packedUVfrom1D(int texNumR, int texNumC, int index) { int texelIndex = index / 2; int texR = texelIndex / texNumC; int texC = texelIndex - texR * texNumC; return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR); } `,ehe=` vec2 packedUVfrom2D(int texelsInLogicalRow, int texNumR, int texNumC, int row, int col) { int texelIndex = (row / 2) * texelsInLogicalRow + (col / 2); int texR = texelIndex / texNumC; int texC = texelIndex - texR * texNumC; return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR); } `,the=` vec2 packedUVfrom3D(int texNumR, int texNumC, int texelsInBatch, int texelsInLogicalRow, int b, int row, int col) { int index = b * texelsInBatch + (row / 2) * texelsInLogicalRow + (col / 2); int texR = index / 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t=this.texData.get(e),{values:n,shape:r,slice:s,dtype:a,complexTensorInfos:o,isPacked:i}=t;if(s!=null){let p;i?p=new wu(r,Vm):p=new Qa(r,Vm);let f=this.runWebGLProgram(p,[{dataId:e,shape:r,dtype:a}],a),m=this.read(f.dataId);return this.disposeIntermediateTensorInfo(f),m}if(n!=null)return this.convertAndCacheOnCPU(e);if(!ae().getBool("WEBGL_DOWNLOAD_FLOAT_ENABLED")&&ae().getNumber("WEBGL_VERSION")===2)throw new Error("tensor.data() with WEBGL_DOWNLOAD_FLOAT_ENABLED=false and WEBGL_VERSION=2 not yet supported.");let l=null,u;if(a!=="complex64"&&ae().get("WEBGL_BUFFER_SUPPORTED")){u=this.decode(e);let p=this.texData.get(u.dataId);l=this.gpgpu.createBufferFromTexture(p.texture,...oh(r))}this.pendingRead.set(e,[]),a!=="complex64"&&await this.gpgpu.createAndWaitForFence();let c;if(a==="complex64"){let p=await Promise.all([this.read(o.real.dataId),this.read(o.imag.dataId)]),f=p[0],m=p[1];c=_.mergeRealAndImagArrays(f,m)}else if(l==null)c=this.getValuesFromTexture(e);else{let p=k.sizeFromShape(r);c=this.gpgpu.downloadFloat32MatrixFromBuffer(l,p)}u!=null&&this.disposeIntermediateTensorInfo(u);let d=this.convertAndCacheOnCPU(e,c),h=this.pendingRead.get(e);return this.pendingRead.delete(e),h.forEach(p=>p(d)),this.pendingDisposal.has(e)&&(this.pendingDisposal.delete(e),this.disposeData(e)&&za().removeDataId(e,this),this.pendingDeletes--),d}bufferSync(e){let t=this.readSync(e.dataId),n=t;if(e.dtype==="string")try{n=t.map(r=>k.decodeString(r))}catch(r){throw new Error("Failed to decode encoded string bytes into utf-8")}return Le(e.shape,e.dtype,n)}checkNumericalProblems(e){if(e!=null)for(let t=0;t0}async time(e){let t=this.activeTimers,n=[],r=!1;this.programTimersStack==null?(this.programTimersStack=n,r=!0):this.activeTimers.push(n),this.activeTimers=n,e();let s=k.flatten(this.activeTimers.map(i=>i.query)).filter(i=>i!=null),a=k.flatten(this.activeTimers.map(i=>i.name)).filter(i=>i!=null);this.activeTimers=t,r&&(this.programTimersStack=null);let o={uploadWaitMs:this.uploadWaitMs,downloadWaitMs:this.downloadWaitMs,kernelMs:null,wallMs:null};if(ae().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0){let i=await Promise.all(s);o.kernelMs=k.sum(i),o.getExtraProfileInfo=()=>i.map((l,u)=>({name:a[u],ms:l})).map(l=>`${l.name}: ${l.ms}`).join(", ")}else o.kernelMs={error:"WebGL query timers are not supported in this environment."};return this.uploadWaitMs=0,this.downloadWaitMs=0,o}memory(){return{unreliable:!1,numBytesInGPU:this.numBytesInGPU,numBytesInGPUAllocated:this.textureManager.numBytesAllocated,numBytesInGPUFree:this.textureManager.numBytesFree}}startTimer(){return ae().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0?this.gpgpu.beginQuery():{startMs:k.now(),endMs:null}}endTimer(e){return ae().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0?(this.gpgpu.endQuery(),e):(e.endMs=k.now(),e)}async getQueryTime(e){if(ae().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0)return this.gpgpu.waitForQueryAndGetTime(e);let t=e;return t.endMs-t.startMs}disposeData(e,t=!1){if(this.pendingDisposal.has(e))return!1;if(!this.texData.has(e))return!0;if(t?this.texData.get(e).refCount=0:this.texData.get(e).refCount--,!t&&this.texData.get(e).refCount>0)return!1;if(this.pendingRead.has(e))return this.pendingDisposal.add(e),this.pendingDeletes++,!1;this.releaseGPUData(e);let{complexTensorInfos:n}=this.texData.get(e);return n!=null&&(this.disposeData(n.real.dataId,t),this.disposeData(n.imag.dataId,t)),this.texData.delete(e),!0}releaseGPUData(e){let{texture:t,dtype:n,texShape:r,usage:s,isPacked:a,slice:o}=this.texData.get(e),i=o&&o.origDataId||e,l=this.dataRefCount.get(i);l>1?this.dataRefCount.set(i,l-1):(this.dataRefCount.delete(i),t!=null&&(this.numBytesInGPU-=this.computeBytes(r,n),this.textureManager.releaseTexture(t,r,s,a)));let u=this.texData.get(e);u.texture=null,u.texShape=null,u.isPacked=!1,u.slice=null}getTexture(e){return this.uploadToGPU(e),this.texData.get(e).texture}getDataInfo(e){return this.texData.get(e)}shouldExecuteOnCPU(e,t=cfe){return ae().getBool("WEBGL_CPU_FORWARD")&&e.every(n=>this.texData.get(n.dataId).texture==null&&k.sizeFromShape(n.shape)0&&k.isString(n[0])){let s=n.map(a=>k.encodeString(a));r=this.write(s,e,t)}else r=this.write(n,e,t);return this.texData.get(r).usage=null,{dataId:r,shape:e,dtype:t}}makeOutput(e,t,n){let{dataId:r}=this.makeTensorInfo(e,t,n);return za().makeTensorFromDataId(r,e,t,this)}unpackTensor(e){let t=new afe(e.shape);return this.runWebGLProgram(t,[e],e.dtype)}packTensor(e){let t=new Lpe(e.shape),n=!0;return this.runWebGLProgram(t,[e],e.dtype,null,n)}packedReshape(e,t){let n=[gi(e.shape),...yi(e.shape)],r={dtype:e.dtype,shape:n,dataId:e.dataId},s=[gi(t),...yi(t)],a=new fE(s,n),o=!0,i=this.runWebGLProgram(a,[r],e.dtype,null,o);return{dataId:i.dataId,shape:t,dtype:i.dtype}}decode(e){let t=this.texData.get(e),{isPacked:n,shape:r,dtype:s}=t,a=Om(r),o;n?o=new Lde(a):o=new zde(a);let i=!0,l=this.runWebGLProgram(o,[{shape:a,dtype:s,dataId:e}],s,null,i);return{dtype:s,shape:r,dataId:l.dataId}}runWebGLProgram(e,t,n,r,s=!1){let a=this.makeTensorInfo(e.outputShape,n),o=this.texData.get(a.dataId);if(e.packedOutput&&(o.isPacked=!0),e.outPackingScheme===sh.DENSE){let m=oh(e.outputShape);o.texShape=m.map(g=>g*2)}if(e.outTexUsage!=null&&(o.usage=e.outTexUsage),k.sizeFromShape(a.shape)===0)return o.values=k.getTypedArrayFromDType(a.dtype,0),a;let i=[],l=t.map(m=>{if(m.dtype==="complex64")throw new Error("GPGPUProgram does not support complex64 input. For complex64 dtypes, please separate the program into real and imaginary parts.");let g=this.texData.get(m.dataId);if(g.texture==null){if(!e.packedInputs&&k.sizeFromShape(m.shape)<=ae().getNumber("WEBGL_SIZE_UPLOAD_UNIFORM"))return{shape:m.shape,texData:null,isUniform:!0,uniformValues:g.values};e.packedInputs&&(g.isPacked=!0,g.shape=m.shape)}else if(!!g.isPacked!=!!e.packedInputs)m=g.isPacked?this.unpackTensor(m):this.packTensor(m),i.push(m),g=this.texData.get(m.dataId);else if(g.isPacked&&!uh(g.shape,m.shape)){let y=m,A=m.shape;m.shape=g.shape,m=this.packedReshape(m,A),i.push(m),g=this.texData.get(m.dataId),y.shape=A}return this.uploadToGPU(m.dataId),{shape:m.shape,texData:g,isUniform:!1}});this.uploadToGPU(a.dataId);let u={shape:a.shape,texData:o,isUniform:!1},c=Ehe(e,l,u),d=this.getAndSaveBinary(c,()=>Nhe(this.gpgpu,e,l,u)),h=this.activeTimers!=null,p;h&&(p=this.startTimer()),Che(this.gpgpu,d,l,u,r),i.forEach(m=>this.disposeIntermediateTensorInfo(m)),h&&(p=this.endTimer(p),this.activeTimers.push({name:e.constructor.name,query:this.getQueryTime(p)}));let f=ae().get("WEBGL_FLUSH_THRESHOLD");if(f>0){let m=k.now();m-this.lastGlFlushTime>f&&(this.gpgpu.gl.flush(),this.lastGlFlushTime=m)}if(!ae().getBool("WEBGL_LAZILY_UNPACK")&&o.isPacked&&s===!1){let m=this.unpackTensor(a);return this.disposeIntermediateTensorInfo(a),m}return a}compileAndRun(e,t,n,r,s=!1){return n=n||t[0].dtype,this.runWebGLProgram(e,t,n,r,s)}getAndSaveBinary(e,t){return e in this.binaryCache||(this.binaryCache[e]=t()),this.binaryCache[e]}getTextureManager(){return this.textureManager}dispose(){this.disposed||(ae().getBool("IS_TEST")||Object.keys(this.binaryCache).forEach(t=>{this.gpgpu.deleteProgram(this.binaryCache[t].webGLProgram),delete this.binaryCache[t]}),this.textureManager.dispose(),this.canvas!=null&&typeof HTMLCanvasElement!="undefined"&&this.canvas instanceof HTMLCanvasElement?this.canvas.remove():this.canvas=null,this.gpgpuCreatedLocally&&(this.gpgpu.program=null,this.gpgpu.dispose()),this.disposed=!0)}floatPrecision(){return this.floatPrecisionValue==null&&(this.floatPrecisionValue=Z(()=>{if(!ae().get("WEBGL_RENDER_FLOAT32_ENABLED")){let e=ae().getBool("DEBUG");ae().set("DEBUG",!1);let t=this.abs(Fe(1e-8)).dataSync()[0];if(ae().set("DEBUG",e),t>0)return 32}return 16})),this.floatPrecisionValue}epsilon(){return this.floatPrecision()===32?ife:lfe}uploadToGPU(e){let t=this.texData.get(e),{shape:n,dtype:r,values:s,texture:a,usage:o,isPacked:i}=t;if(a!=null)return;let l=this.activeTimers!=null,u;l&&(u=k.now());let c=t.texShape;if(c==null&&(c=pC(n,i),t.texShape=c),s!=null){let d=Om(n),h,p=c[1],f=c[0],m=s instanceof Uint8Array;i?([p,f]=fu(c[0],c[1]),h=new Ude(d,[f,p],m)):h=new Vde(d,[f,p],m);let g=this.makeTensorInfo([f,p],r);m?this.texData.get(g.dataId).usage=zr.PIXELS:this.texData.get(g.dataId).usage=zr.UPLOAD,this.gpgpu.uploadDenseMatrixToTexture(this.getTexture(g.dataId),p,f,s);let y=!0,A=this.runWebGLProgram(h,[g],r,null,y),x=this.texData.get(A.dataId);t.texture=x.texture,t.texShape=x.texShape,t.isPacked=x.isPacked,t.usage=x.usage,this.disposeIntermediateTensorInfo(g),this.texData.delete(A.dataId),t.values=null,l&&(this.uploadWaitMs+=k.now()-u)}else{let d=this.acquireTexture(c,o,r,i);t.texture=d}}convertAndCacheOnCPU(e,t){let n=this.texData.get(e),{dtype:r}=n;return this.releaseGPUData(e),t!=null&&(n.values=pfe(t,r)),n.values}acquireTexture(e,t,n,r){if(this.numBytesInGPU+=this.computeBytes(e,n),!this.warnedAboutMemory&&this.numBytesInGPU>this.numMBBeforeWarning*1024*1024){let s=(this.numBytesInGPU/1024/1024).toFixed(2);this.warnedAboutMemory=!0,console.warn(`High memory usage in GPU: ${s} MB, most likely due to a memory leak`)}return this.textureManager.acquireTexture(e,t,r)}computeBytes(e,t){return e[0]*e[1]*k.bytesPerElement(t)}},dh=xE;dh.nextDataId=0;function pfe(e,t){if(t==="float32"||t==="complex64")return e;if(t==="int32"||t==="bool"){let n=t==="int32"?new Int32Array(e.length):new Uint8Array(e.length);for(let r=0;rnew dh,2);var mfe={forceHalfFloat:bE},vE=` if (isnan(a)) return a; if (isnan(b)) return b; `,ku=class{constructor(e,t,n){this.variableNames=["A","B"],this.outputShape=_.assertAndGetBroadcastShape(t,n),this.userCode=` float binaryOperation(float a, float b) { ${e} } void main() { float a = getAAtOutCoords(); float b = getBAtOutCoords(); setOutput(binaryOperation(a, b)); } `}},Hm=` result.r = isNaN.r > 0. ? NAN : result.r; result.g = isNaN.g > 0. ? NAN : result.g; result.b = isNaN.b > 0. ? NAN : result.b; result.a = isNaN.a > 0. ? NAN : result.a; `,hh=class{constructor(e,t,n,r=!1){this.variableNames=["A","B"],this.supportsBroadcasting=!0,this.packedInputs=!0,this.packedOutput=!0,this.outputShape=_.assertAndGetBroadcastShape(t,n);let s=this.outputShape.length,a="";if(r)if(s===0||k.sizeFromShape(this.outputShape)===1)a=` result.y = 0.; result.z = 0.; result.w = 0.; `;else if(a=` ${It(s)} coords = getOutputCoords(); `,s===1)a+=` result.y = (coords + 1) >= ${this.outputShape[0]} ? 0. : result.y; result.z = 0.; result.w = 0.; `;else{let i=Vn("coords",s);a+=` bool nextRowOutOfBounds = (${i[s-2]} + 1) >= ${this.outputShape[s-2]}; bool nextColOutOfBounds = (${i[s-1]} + 1) >= ${this.outputShape[s-1]}; result.y = nextColOutOfBounds ? 0. : result.y; result.z = nextRowOutOfBounds ? 0. : result.z; result.w = nextColOutOfBounds || nextRowOutOfBounds ? 0. : result.w; `}this.userCode=` vec4 binaryOperation(vec4 a, vec4 b) { ${e} } void main() { vec4 a = getAAtOutCoords(); vec4 b = getBAtOutCoords(); vec4 result = binaryOperation(a, b); ${a} setOutput(result); } `}};function mr(e){let{inputs:t,backend:n}=e,{x:r}=t;return n.incRef(r.dataId),{dataId:r.dataId,shape:r.shape,dtype:r.dtype}}var gfe={kernelName:hl,backendName:"webgl",kernelFunc:mr};function eo(e){let{inputs:t,backend:n}=e,{real:r,imag:s}=t,a=n.makeTensorInfo(r.shape,"complex64"),o=n.texData.get(a.dataId),i=mr({inputs:{x:r},backend:n}),l=mr({inputs:{x:s},backend:n});return o.complexTensorInfos={real:i,imag:l},a}var yfe={kernelName:Sy,backendName:"webgl",kernelFunc:eo},wE="return (a < 0.) ? b * a : a;",kE=` vec4 aLessThanZero = vec4(lessThan(a, vec4(0.))); return (aLessThanZero * (b * a)) + ((vec4(1.0) - aLessThanZero) * a); `;function Afe(e){let{inputs:t,backend:n,attrs:r}=e,{x:s}=t,{alpha:a}=r,o=n.makeTensorInfo([],"float32",k.createScalarValue(a,"float32")),i=ae().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new hh(kE,s.shape,o.shape):new ku(wE,s.shape,o.shape),l=n.runWebGLProgram(i,[s,o],s.dtype);return n.disposeIntermediateTensorInfo(o),l}var xfe={kernelName:pl,backendName:"webgl",kernelFunc:Afe},IE="return (a < 0.) ? b * a : a;",SE=` vec4 aLessThanZero = vec4(lessThan(a, vec4(0.))); return (aLessThanZero * (b * a)) + ((vec4(1.0) - aLessThanZero) * a); `;function bfe(e){let{inputs:t,backend:n}=e,{x:r,alpha:s}=t,a=ae().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new hh(SE,r.shape,s.shape):new ku(IE,r.shape,s.shape);return n.runWebGLProgram(a,[r,s],r.dtype)}var vfe={kernelName:Sl,backendName:"webgl",kernelFunc:bfe},TE="if (isnan(x)) return x;",wfe=` if (isnan(a)) return a; if (isnan(b)) return b; `,kfe=` result.r = isNaN.r > 0. ? NAN : result.r; result.g = isNaN.g > 0. ? NAN : result.g; result.b = isNaN.b > 0. ? NAN : result.b; result.a = isNaN.a > 0. ? NAN : result.a; `;function it({opSnippet:e,packedOpSnippet:t,cpuKernelImpl:n,dtype:r}){return({inputs:s,backend:a})=>{let{x:o}=s,i=a,l=r||o.dtype;if(i.shouldExecuteOnCPU([o])&&n!=null){let d=i.texData.get(o.dataId),h=n(d.values,l);return i.makeTensorInfo(o.shape,l,h)}let u=ae().getBool("WEBGL_PACK_UNARY_OPERATIONS")&&t!=null,c;return u?c=new wu(o.shape,t):c=new Qa(o.shape,e),i.runWebGLProgram(c,[o],l)}}function Nn({opSnippet:e,packedOpSnippet:t,checkOutOfBounds:n=!1,supportsComplex:r=!1,cpuKernelImpl:s,dtype:a}){return({inputs:o,backend:i})=>{let{a:l,b:u}=o,c=i;if(r&&l.dtype==="complex64"){let f=c.texData.get(l.dataId),m=c.texData.get(u.dataId),[g,y]=[[f.complexTensorInfos.real,m.complexTensorInfos.real],[f.complexTensorInfos.imag,m.complexTensorInfos.imag]].map(x=>{let[b,v]=x,w={dataId:b.dataId,dtype:b.dtype,shape:l.shape},I={dataId:v.dataId,dtype:v.dtype,shape:u.shape},T=new ku(e,l.shape,u.shape);return c.runWebGLProgram(T,[w,I],qr(b.dtype,v.dtype))}),A=eo({inputs:{real:g,imag:y},backend:c});return c.disposeIntermediateTensorInfo(g),c.disposeIntermediateTensorInfo(y),A}let d=a||qr(l.dtype,u.dtype);if((l.dtype==="string"||u.dtype==="string"||c.shouldExecuteOnCPU([l,u]))&&s!=null){let f=c.texData.get(l.dataId).values,m=c.texData.get(u.dataId).values,g=l.dtype==="string"?_.fromUint8ToStringArray(f):f,y=l.dtype==="string"?_.fromUint8ToStringArray(m):m,[A,x]=s(l.shape,u.shape,g,y,d),b=c.makeTensorInfo(x,d),v=c.texData.get(b.dataId);return v.values=A,b}let h=ae().getBool("WEBGL_PACK_BINARY_OPERATIONS")&&t!=null,p;return h?p=new hh(t,l.shape,u.shape,n):p=new ku(e,l.shape,u.shape),c.runWebGLProgram(p,[l,u],d)}}function Gm(e,t=!1){if(e==="linear")return t?efe:Xpe;if(e==="relu")return t?nfe:Ype;if(e==="elu")return t?tfe:Zpe;if(e==="relu6")return t?rfe:Jpe;if(e==="prelu")return t?SE:IE;if(e==="leakyrelu")return t?kE:wE;if(e==="sigmoid")return t?sfe:Qpe;throw new Error(`Activation ${e} has not been implemented for the WebGL backend.`)}var NE=class{constructor(e,t,n,r=!1,s=!1,a=!1,o=null,i=!1,l=!1){this.variableNames=["matrixA","matrixB"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=n;let u=r?e[1]:e[2],c=Math.ceil(u/2),d=r?"i * 2, rc.y":"rc.y, i * 2",h=s?"rc.z, i * 2":"i * 2, rc.z",p=r?["a.xxyy","a.zzww"]:["a.xxzz","a.yyww"],f=s?["b.xzxz","b.ywyw"]:["b.xyxy","b.zwzw"],m="",g="";o&&(i?m=`vec4 activation(vec4 a) { vec4 b = getPreluActivationWeightsAtOutCoords(); ${o} }`:l?m=`vec4 activation(vec4 a) { vec4 b = getLeakyreluAlphaAtOutCoords(); ${o} }`:m=`vec4 activation(vec4 x) { ${o} }`,g="result = activation(result);");let y=a?"result += getBiasAtOutCoords();":"";a&&this.variableNames.push("bias"),i&&this.variableNames.push("preluActivationWeights"),l&&this.variableNames.push("leakyreluAlpha");let A="rc.x",x="rc.x";e[0]`The new shape (${l}) has ${u} elements and the old shape (${s.shape}) has ${i} elements. 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} return acos(x); `,Bfe=it({opSnippet:Lfe}),Wfe={kernelName:bc,backendName:"webgl",kernelFunc:Bfe},Vfe=ys+` if (x < 1.0) return NAN; return log(x + sqrt(x * x - 1.0));`,Ufe=it({opSnippet:Vfe}),Hfe={kernelName:vc,backendName:"webgl",kernelFunc:Ufe},FE="return a + b;",Gfe=Nn({opSnippet:FE,packedOpSnippet:FE,supportsComplex:!0,cpuKernelImpl:npe}),jfe={kernelName:Fa,backendName:"webgl",kernelFunc:Gfe},qfe=class{constructor(e,t){this.outputShape=[],this.outputShape=e,this.variableNames=t.map((s,a)=>`T${a}`);let n=[];this.variableNames.forEach(s=>{n.push(`float v${s} = get${s}AtOutCoords();`)});let r=this.variableNames.map(s=>`v${s}`).join(" + ");this.userCode=` void main() { ${n.join(` `)} float result = ${r}; setOutput(result); } `}},Kfe=class{constructor(e,t){this.outputShape=[],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=e,this.variableNames=t.map((s,a)=>`T${a}`);let n=[];this.variableNames.forEach(s=>{n.push(`vec4 v${s} = get${s}AtOutCoords();`)});let r=this.variableNames.map(s=>`v${s}`).join(" + ");this.userCode=` void main() { ${n.join(` `)} vec4 result = ${r}; setOutput(result); } `}};function Xm(e){let{inputs:t,backend:n}=e,r=t;if(r.length===1)return mr({inputs:{x:r[0]},backend:n});if(r.length>ae().get("WEBGL_MAX_TEXTURES_IN_SHADER")){let l=Math.floor(r.length/2),u=Xm({inputs:r.slice(0,l),backend:n}),c=Xm({inputs:r.slice(l),backend:n});return Xm({inputs:[u,c],backend:n})}let s=r.map(l=>l.dtype).reduce((l,u)=>qr(l,u)),a=r.map(l=>l.shape),i=ae().getBool("WEBGL_PACK")?new Kfe(r[0].shape,a):new qfe(r[0].shape,a);return n.runWebGLProgram(i,r,s)}var Xfe={kernelName:Zi,backendName:"webgl",kernelFunc:Xm};function Zfe(e){let{inputs:t,backend:n,attrs:r}=e,{x:s}=t,{axis:a,keepDims:o}=r,i=s.shape.length,l=k.parseAxisParam(a,s.shape),u=l,c=_.getAxesPermutation(u,i),d=s;c!=null&&(d=Un({inputs:{x:s},backend:n,attrs:{perm:c}}),u=_.getInnerMostAxes(u.length,i)),_.assertAxesAreInnerMostDims("all",u,i);let[h,p]=_.computeOutAndReduceShapes(d.shape,u),f=k.sizeFromShape(p),m=ve({inputs:{x:d},backend:n,attrs:{shape:[-1,f]}}),g=bi(m,m.dtype,"all",n),y;if(o){let A=_.expandShapeToKeepDim(h,l);y=ve({inputs:{x:g},backend:n,attrs:{shape:A}})}else y=ve({inputs:{x:g},backend:n,attrs:{shape:h}});return n.disposeIntermediateTensorInfo(m),n.disposeIntermediateTensorInfo(g),c!=null&&n.disposeIntermediateTensorInfo(d),y}var Yfe={kernelName:wc,backendName:"webgl",kernelFunc:Zfe};function Jfe(e){let{inputs:t,backend:n,attrs:r}=e,{x:s}=t,{axis:a,keepDims:o}=r,i=s.shape.length,l=k.parseAxisParam(a,s.shape),u=l,c=_.getAxesPermutation(u,i),d=s;c!=null&&(d=Un({inputs:{x:s},backend:n,attrs:{perm:c}}),u=_.getInnerMostAxes(u.length,i)),_.assertAxesAreInnerMostDims("any",u,i);let[h,p]=_.computeOutAndReduceShapes(d.shape,u),f=k.sizeFromShape(p),m=ve({inputs:{x:d},backend:n,attrs:{shape:[-1,f]}}),g=bi(m,m.dtype,"any",n),y;if(o){let A=_.expandShapeToKeepDim(h,l);y=ve({inputs:{x:g},backend:n,attrs:{shape:A}})}else y=ve({inputs:{x:g},backend:n,attrs:{shape:h}});return n.disposeIntermediateTensorInfo(m),n.disposeIntermediateTensorInfo(g),c!=null&&n.disposeIntermediateTensorInfo(d),y}var Qfe={kernelName:kc,backendName:"webgl",kernelFunc:Jfe},eme=class{constructor(e,t,n){this.variableNames=["A"];let{windowSize:r,batchSize:s,outSize:a}=e;n||this.variableNames.push("bestIndicesA"),this.outputShape=[s,a];let o=t==="max"?">":"<",i=n?"inOffset + i;":"round(getBestIndicesA(batch, inOffset + i));";this.userCode=` void main() { ivec2 coords = getOutputCoords(); int batch = coords[0]; int outIdx = coords[1]; int inOffset = outIdx * ${r}; int bestIndex = inOffset; float bestValue = getA(batch, bestIndex); for (int i = 0; i < ${r}; i++) { int inIdx = ${i}; float candidate = getA(batch, inIdx); if (candidate ${o} bestValue) { bestValue = candidate; bestIndex = inIdx; } } setOutput(float(bestIndex)); } `}},tme=class{constructor(e,t,n,r){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,k.assert(e.length>2,()=>`Packed arg${n.charAt(0).toUpperCase()+n.slice(1)} supports only inputs with rank above 2.`);let s=e[e.length-1],a=Math.ceil(s/t);this.outputShape=e.slice(0,-1),a>1&&this.outputShape.push(a),r||this.variableNames.push("bestIndicesA");let o=this.outputShape,i=o.length,l=It(i),u=Vn("coords",i),c,d;if(a===1){d=i+1;let I=It(d);c=` ${I} sourceLocR = ${I}(${u.join()}, 0); ++${u[i-1]}; ${I} sourceLocG = ${I}(${u.join()}, 0); ++${u[i-2]}; ${I} sourceLocA = ${I}(${u.join()}, 0); --${u[i-1]}; ${I} sourceLocB = ${I}(${u.join()}, 0); --${u[i-2]};`}else d=i,c=` ${l} sourceLocR = coords; ++${u[i-1]}; ${l} sourceLocG = coords; ++${u[i-2]}; ${l} sourceLocA = coords; --${u[i-1]}; ${l} sourceLocB = coords; --${u[i-2]};`;let h=["x","y","z","w","u","v"].slice(0,d),p="."+h[d-1],f=h.map(I=>"int "+I),m=Vn("sourceLocR",d-1).concat("inIdx.r"),g=Vn("sourceLocG",d-1).concat("inIdx.g"),y=Vn("sourceLocB",d-1).concat("inIdx.b"),A=Vn("sourceLocA",d-1).concat("inIdx.a"),x=n==="max"?"greaterThan":"lessThan",b=r?"":` inIdx = round(vec4(getBestIndicesAChannel(${m.join()}), getBestIndicesAChannel(${g.join()}), getBestIndicesAChannel(${y.join()}), getBestIndicesAChannel(${A.join()})));`,v=`vec4( getAChannel(${m.join()}), hasNextCol ? getAChannel(${g.join()}) : 0., hasNextRow ? getAChannel(${y.join()}) : 0., hasNextRow && hasNextCol ? getAChannel(${A.join()}) : 0.)`,w=r?"":` float getBestIndicesAChannel(${f.join()}) { return getChannel(getBestIndicesA(${h.join()}), vec2(${h.slice(-2).join()})); }`;this.userCode=` float getAChannel(${f.join()}) { return getChannel(getA(${h.join()}), vec2(${h.slice(-2).join()})); } ${w} void main() { ${l} coords = getOutputCoords(); bool hasNextCol = ${u[i-1]} < ${o[i-1]-1}; bool hasNextRow = ${u[i-2]} < ${o[i-2]-1}; ${c} ivec4 srcIdx = ivec4(sourceLocR${p}, sourceLocG${p}, sourceLocB${p}, sourceLocA${p}) * ${t}; ivec4 inIdx = srcIdx; vec4 bestIndex = vec4(inIdx); vec4 bestValue = ${v}; for (int i = 0; i < ${t}; i++) { inIdx = srcIdx; ${b} vec4 candidate = ${v}; bvec4 nan = isnan(candidate); bvec4 replace = bvec4( vec4(${x}(candidate, bestValue)) * (vec4(1.0) - vec4(nan))); bestValue = vec4(replace.x ? candidate.x : bestValue.x, replace.y ? candidate.y : bestValue.y, replace.z ? candidate.z : bestValue.z, replace.w ? candidate.w : bestValue.w); bestIndex = mix(bestIndex, vec4(inIdx), vec4(replace)); srcIdx++; } setOutput(bestIndex); } `}};function ME(e,t,n,r=null){let s=t.shape[0],a=t.shape[1];r!=null&&(s=r.shape[0],a=r.shape[1]);let o=_.computeOptimalWindowSize(a),i={windowSize:o,inSize:a,batchSize:s,outSize:Math.ceil(a/o)},l=new eme(i,n,r==null),u=[t];r!=null&&u.push(r);let c=e.runWebGLProgram(l,u,"int32");if(c.shape[1]===1)return c;let d=ME(e,t,n,c);return e.disposeIntermediateTensorInfo(c),d}function OE(e,t,n,r=null){let s=r!=null?r.shape:t.shape,a=s[s.length-1],o=_.computeOptimalWindowSize(a),i=new tme(s,o,n,r==null),l=r==null?[t]:[t,r],u=e.runWebGLProgram(i,l,"int32");if(u.shape.length===t.shape.length){let c=OE(e,t,n,u);return e.disposeIntermediateTensorInfo(u),c}return u}function PE(e,t,n,r){let s=[n];if(_.assertAxesAreInnerMostDims("arg"+r.charAt(0).toUpperCase()+r.slice(1),s,t.shape.length),!ae().getBool("WEBGL_PACK_REDUCE")||t.shape.length<=2){let a=[],[o,i]=_.computeOutAndReduceShapes(t.shape,s),l=k.sizeFromShape(i),u=ve({inputs:{x:t},backend:e,attrs:{shape:[-1,l]}});a.push(u);let c=ME(e,u,r);a.push(c);let d=ve({inputs:{x:c},backend:e,attrs:{shape:o}});return a.forEach(h=>e.disposeIntermediateTensorInfo(h)),d}return OE(e,t,r)}function nme(e){let{inputs:t,backend:n,attrs:r}=e,{x:s}=t,{axis:a}=r,o=k.parseAxisParam(a,s.shape),i=_.getAxesPermutation(o,s.shape.length),l=s,u=[];i!=null&&(l=Un({inputs:{x:s},backend:n,attrs:{perm:i}}),u.push(l),o=_.getInnerMostAxes(o.length,l.shape.length)),_.assertAxesAreInnerMostDims("argMax",[o[0]],l.shape.length);let c=PE(n,l,o[0],"max");return u.forEach(d=>n.disposeIntermediateTensorInfo(d)),c}var rme={kernelName:Yi,backendName:"webgl",kernelFunc:nme};function sme(e){let{inputs:t,backend:n,attrs:r}=e,{x:s}=t,{axis:a}=r,o=k.parseAxisParam(a,s.shape),i=_.getAxesPermutation(o,s.shape.length),l=s,u=[];i!=null&&(l=Un({inputs:{x:s},backend:n,attrs:{perm:i}}),u.push(l),o=_.getInnerMostAxes(o.length,l.shape.length)),_.assertAxesAreInnerMostDims("argMin",[o[0]],l.shape.length);let c=PE(n,l,o[0],"min");return u.forEach(d=>n.disposeIntermediateTensorInfo(d)),c}var ame={kernelName:qp,backendName:"webgl",kernelFunc:sme},ome=ys+` if (abs(x) > 1.) { return NAN; } return asin(x); `,ime=it({opSnippet:ome}),lme={kernelName:Ic,backendName:"webgl",kernelFunc:ime},ume=ys+"return log(x + sqrt(x * x + 1.0));",cme=it({opSnippet:ume}),dme={kernelName:Sc,backendName:"webgl",kernelFunc:cme},hme=ys+` return atan(x); `,pme=it({opSnippet:hme}),fme={kernelName:Tc,backendName:"webgl",kernelFunc:pme},mme=wfe+` return atan(a, b); `,gme=` vec4 result = atan(a, b); vec4 isNaN = min(vec4(isnan(a)) + vec4(isnan(b)), vec4(1.0)); `+kfe+` return result; `,yme=Nn({opSnippet:mme,packedOpSnippet:gme}),Ame={kernelName:Cc,backendName:"webgl",kernelFunc:yme},xme=ys+` if ((x < -1.0) || (x > 1.0)) return NAN; return (log(1.0 + x) - log(1.0 - x)) / 2.0;`,bme=it({opSnippet:xme}),vme={kernelName:Nc,backendName:"webgl",kernelFunc:bme},ph=class{constructor(e,t,n,r=!1,s=!1){if(this.variableNames=["x"],t==="avg"&&n)throw new Error("Cannot compute positions for average pool.");let a=e.filterWidth,o=e.strideHeight,i=e.strideWidth,l=e.dilationHeight,u=e.dilationWidth,c=e.effectiveFilterHeight,d=e.effectiveFilterWidth,h=e.padInfo.top,p=e.padInfo.left;this.outputShape=e.outShape;let f=t==="avg",m=`((batch * ${e.inHeight} + xR) * ${e.inWidth} + xC) * ${e.inChannels} + d`,g=`(xR * ${e.inWidth} + xC) * ${e.inChannels} + d`,y="0.0";if(f||(y="-1.0 / 1e-20"),n){let I=">=";this.userCode=` const ivec2 strides = ivec2(${o}, ${i}); const ivec2 pads = ivec2(${h}, ${p}); void main() { ivec4 coords = getOutputCoords(); int batch = coords[0]; int d = coords[3]; ivec2 xRCCorner = coords.yz * strides - pads; int xRCorner = xRCCorner.x; int xCCorner = xRCCorner.y; // max/min x(?, ?, d) to get y(yR, yC, d). // ? = to be determined float minMaxValue = 0.0; float minMaxValueFound = 0.0; int minMaxPosition = 0; float avgValue = 0.0; for (int wR = 0; wR < ${c}; wR += ${l}) { int xR = xRCorner + wR; if (xR < 0 || xR >= ${e.inHeight}) { continue; } for (int wC = 0; wC < ${d}; wC += ${u}) { int xC = xCCorner + wC; if (xC < 0 || xC >= ${e.inWidth}) { continue; } float value = getX(batch, xR, xC, d); // If a min / max value has already been found, use it. If not, // use the current value. float currMinMaxValue = mix( value, minMaxValue, minMaxValueFound); if (value ${I} currMinMaxValue) { minMaxValue = value; minMaxValueFound = 1.0; minMaxPosition = ${r?s?m:g:`wR * ${d} + wC`}; } } } setOutput(float(minMaxPosition)); } `;return}let A="max",x=`${t}(${t}(${t}(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])`;t==="avg"&&(x="avgValue / count");let b=Math.floor(a/4)*4,v=a%4,w=` if (${f}) { avgValue += dot(values, ones); } else { minMaxValue = ${A}(values, minMaxValue); } `;this.userCode=` const ivec2 strides = ivec2(${o}, ${i}); const ivec2 pads = ivec2(${h}, ${p}); const float initializationValue = ${y}; const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0); float count = 0.0; float getValue(int batch, int xR, int xC, int d) { if (xC < 0 || xC >= ${e.inWidth}) { return initializationValue; } count += 1.0; return getX(batch, xR, xC, d); } void main() { ivec4 coords = getOutputCoords(); int batch = coords[0]; int d = coords[3]; ivec2 xRCCorner = coords.yz * strides - pads; int xRCorner = xRCCorner.x; int xCCorner = xRCCorner.y; // max/min x(?, ?, d) to get y(yR, yC, d). // ? = to be determined vec4 minMaxValue = vec4(${y}); float avgValue = 0.0; count = 0.0; for (int wR = 0; wR < ${c}; wR += ${l}) { int xR = xRCorner + wR; if (xR < 0 || xR >= ${e.inHeight}) { continue; } for (int wC = 0; wC < ${b}; wC += 4) { int xC = xCCorner + wC * ${u}; vec4 values = vec4( getValue(batch, xR, xC, d), getValue(batch, xR, xC + ${u}, d), getValue(batch, xR, xC + 2 * ${u}, d), getValue(batch, xR, xC + 3 * ${u}, d) ); ${w} } int xC = xCCorner + ${b}; if (${v===1}) { vec4 values = vec4( getValue(batch, xR, xC, d), initializationValue, initializationValue, initializationValue ); ${w} } else if (${v===2}) { vec4 values = vec4( getValue(batch, xR, xC, d), getValue(batch, xR, xC + ${u}, d), initializationValue, initializationValue ); ${w} } else if (${v===3}) { vec4 values = vec4( getValue(batch, xR, xC, d), getValue(batch, xR, xC + ${u}, d), getValue(batch, xR, xC + 2 * ${u}, d), initializationValue ); ${w} } } setOutput(${x}); } `}},ub=class{constructor(e,t,n,r=!1,s=!1){if(this.variableNames=["x"],t==="avg"&&n)throw new Error("Cannot compute positions for average pool.");let a=e.filterWidth,o=e.strideDepth,i=e.strideHeight,l=e.strideWidth,u=e.dilationDepth,c=e.dilationHeight,d=e.dilationWidth,h=e.effectiveFilterDepth,p=e.effectiveFilterHeight,f=e.effectiveFilterWidth,m=e.padInfo.front,g=e.padInfo.top,y=e.padInfo.left;this.outputShape=e.outShape;let A=t==="avg",x="0.0";if(A||(x="-1.0 / 1e-20"),n){let C=">=";this.userCode=` const ivec3 strides = ivec3(${o}, ${i}, ${l}); const ivec3 pads = ivec3(${m}, ${g}, ${y}); void main() { ivec5 coords = getOutputCoords(); int batch = coords.x; int ch = coords.u; ivec3 xCorner = ivec3(coords.y, coords.z, coords.w) * strides - pads; int xDCorner = xCorner.x; int xRCorner = xCorner.y; int xCCorner = xCorner.z; // max/min x(?, ?, ?, ch) to get y(yD, yR, yC, ch). // ? = to be determined float minMaxValue = 0.0; float minMaxValueFound = 0.0; int minMaxPosition = 0; for (int wD = 0; wD < ${h}; wD += ${u}) { int xD = xDCorner + wD; if (xD < 0 || xD >= ${e.inDepth}) { continue; } for (int wR = 0; wR < ${p}; wR += ${c}) { int xR = xRCorner + wR; if (xR < 0 || xR >= ${e.inHeight}) { continue; } for (int wC = 0; wC < ${f}; wC += ${d}) { int xC = xCCorner + wC; if (xC < 0 || xC >= ${e.inWidth}) { continue; } float value = getX(batch, xD, xR, xC, ch); // If a min / max value has already been found, use it. If not, // use the current value. float currMinMaxValue = mix( value, minMaxValue, minMaxValueFound); if (value ${C} currMinMaxValue) { minMaxValue = value; minMaxValueFound = 1.0; minMaxPosition = ${r?s?`(((batch * ${e.inDepth} + xD) * ${e.inHeight} + xR) * ${e.inWidth} + xC) * ${e.inChannels} + ch`:`((xD * ${e.inHeight} + xR) * ${e.inWidth} + xC) * ${e.inChannels} + ch`:`wD * ${p} * ${f} + wR * ${f} + wC`}; } } } } setOutput(float(minMaxPosition)); } `;return}let b="max",v=`${t}(${t}(${t}(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])`;t==="avg"&&(v="avgValue / count");let w=Math.floor(a/4)*4,I=a%4,T=` if (${A}) { avgValue += dot(values, ones); } else { minMaxValue = ${b}(values, minMaxValue); } `;this.userCode=` const ivec3 strides = ivec3(${o}, ${i}, ${l}); const ivec3 pads = ivec3(${m}, ${g}, ${y}); const float initializationValue = ${x}; const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0); float count = 0.0; float getValue(int batch, int xD, int xR, int xC, int ch) { if (xC < 0 || xC >= ${e.inWidth}) { return initializationValue; } count += 1.0; return getX(batch, xD, xR, xC, ch); } void main() { ivec5 coords = getOutputCoords(); int batch = coords.x; int ch = coords.u; ivec3 xCorner = ivec3(coords.y, coords.z, coords.w) * strides - pads; int xDCorner = xCorner.x; int xRCorner = xCorner.y; int xCCorner = xCorner.z; // max/min x(?, ?, ?, d) to get y(yD, yR, yC, ch). // ? = to be determined vec4 minMaxValue = vec4(${x}); float avgValue = 0.0; count = 0.0; for (int wD = 0; wD < ${h}; wD += ${u}) { int xD = xDCorner + wD; if (xD < 0 || xD >= ${e.inDepth}) { continue; } for (int wR = 0; wR < ${p}; wR += ${c}) { int xR = xRCorner + wR; if (xR < 0 || xR >= ${e.inHeight}) { continue; } for (int wC = 0; wC < ${w}; wC += 4) { int xC = xCCorner + wC * ${d}; vec4 values = vec4( getValue(batch, xD, xR, xC, ch), getValue(batch, xD, xR, xC + ${d}, ch), getValue(batch, xD, xR, xC + 2 * ${d}, ch), getValue(batch, xD, xR, xC + 3 * ${d}, ch) ); ${T} } int xC = xCCorner + ${w}; if (${I===1}) { vec4 values = vec4( getValue(batch, xD, xR, xC, ch), initializationValue, initializationValue, initializationValue ); ${T} } else if (${I===2}) { vec4 values = vec4( getValue(batch, xD, xR, xC, ch), getValue(batch, xD, xR, xC + ${d}, ch), initializationValue, initializationValue ); ${T} } else if (${I===3}) { vec4 values = vec4( getValue(batch, xD, xR, xC, ch), getValue(batch, xD, xR, xC + ${d}, ch), getValue(batch, xD, xR, xC + 2 * ${d}, ch), initializationValue ); ${T} } } setOutput(${v}); } } `}};function wme(e){let{inputs:t,backend:n,attrs:r}=e,{x:s}=t;mu(s,"avgPool");let{filterSize:a,strides:o,pad:i,dimRoundingMode:l}=r,u=1;k.assert(_.eitherStridesOrDilationsAreOne(o,u),()=>`Error in avgPool: Either strides or dilations must be 1. Got strides ${o} and dilations '${u}'`);let c=_.computePool2DInfo(s.shape,a,o,u,i,l);if(c.filterWidth===1&&c.filterHeight===1&&k.arraysEqual(c.inShape,c.outShape))return mr({inputs:{x:s},backend:n});let d=new ph(c,"avg",!1);return n.runWebGLProgram(d,[s],"float32")}var kme={kernelName:Ji,backendName:"webgl",kernelFunc:wme};function Ime(e){let{inputs:t,backend:n,attrs:r}=e,{x:s}=t,{filterSize:a,strides:o,pad:i,dimRoundingMode:l,dataFormat:u}=r,c=[1,1,1],d=_.computePool3DInfo(s.shape,a,o,c,i,l,u),h=new ub(d,"avg",!1);return n.runWebGLProgram(h,[s],"float32")}var Sme={kernelName:Kp,backendName:"webgl",kernelFunc:Ime},Tme=class{constructor(e){this.variableNames=["dy"],this.outputShape=e.inShape;let t=e.filterHeight,n=e.filterWidth,r=e.strideHeight,s=e.strideWidth,a=e.dilationHeight,o=e.dilationWidth,i=e.effectiveFilterHeight,l=e.effectiveFilterWidth,u=i-1-e.padInfo.top,c=l-1-e.padInfo.left,d=1/(t*n);this.userCode=` const ivec2 pads = ivec2(${u}, ${c}); const float avgMultiplier = float(${d}); void main() { ivec4 coords = getOutputCoords(); int b = coords[0]; int d = coords[3]; ivec2 dyRCCorner = coords.yz - pads; int dyRCorner = dyRCCorner.x; int dyCCorner = dyRCCorner.y; // Convolve dy(?, ?, d) with pos mask(:, :, d) to get dx(xR, xC, d). // ? = to be determined. : = across all values in that axis. float dotProd = 0.0; for (int wR = 0; wR < ${i}; wR += ${a}) { float dyR = float(dyRCorner + wR) / ${r}.0; if (dyR < 0.0 || dyR >= ${e.outHeight}.0 || fract(dyR) > 0.0) { continue; } int idyR = int(dyR); for (int wC = 0; wC < ${l}; wC+= ${o}) { float dyC = float(dyCCorner + wC) / ${s}.0; if (dyC < 0.0 || dyC >= ${e.outWidth}.0 || fract(dyC) > 0.0) { continue; } int idyC = int(dyC); float dyValue = getDy(b, idyR, idyC, d); dotProd += dyValue * avgMultiplier; } } setOutput(dotProd); } `}},Nme=class{constructor(e){this.variableNames=["dy"],this.outputShape=e.inShape;let t=e.filterDepth,n=e.filterHeight,r=e.filterWidth,s=e.strideDepth,a=e.strideHeight,o=e.strideWidth,i=e.dilationDepth,l=e.dilationHeight,u=e.dilationWidth,c=e.effectiveFilterDepth,d=e.effectiveFilterHeight,h=e.effectiveFilterWidth,p=c-1-e.padInfo.front,f=d-1-e.padInfo.top,m=h-1-e.padInfo.left,g=1/(t*n*r);this.userCode=` const ivec3 pads = ivec3(${p}, ${f}, ${m}); const float avgMultiplier = float(${g}); void main() { ivec5 coords = getOutputCoords(); int batch = coords.x; int ch = coords.u; ivec3 dyCorner = ivec3(coords.y, coords.z, coords.w) - pads; int dyDCorner = dyCorner.x; int dyRCorner = dyCorner.y; int dyCCorner = dyCorner.z; // Convolve dy(?, ?, ?, d) with pos mask(:, :, :, ch) to get // dx(xD, xR, xC, ch). // ? = to be determined. : = across all values in that axis. float dotProd = 0.0; for (int wD = 0; wD < ${c}; wD += ${i}) { float dyD = float(dyDCorner + wD) / ${s}.0; if (dyD < 0.0 || dyD >= ${e.outDepth}.0 || fract(dyD) > 0.0) { continue; } int idyD = int(dyD); for (int wR = 0; wR < ${d}; wR += ${l}) { float dyR = float(dyRCorner + wR) / ${a}.0; if (dyR < 0.0 || dyR >= ${e.outHeight}.0 || fract(dyR) > 0.0) { continue; } int idyR = int(dyR); for (int wC = 0; wC < ${h}; wC += ${u}) { float dyC = float(dyCCorner + wC) / ${o}.0; if (dyC < 0.0 || dyC >= ${e.outWidth}.0 || fract(dyC) > 0.0) { continue; } int idyC = int(dyC); float dyValue = getDy(batch, idyD, idyR, idyC, ch); dotProd += dyValue * avgMultiplier; } } } setOutput(dotProd); } `}};function Cme(e){let{inputs:t,backend:n,attrs:r}=e,{dy:s,input:a}=t,o=a,{filterSize:i,strides:l,pad:u,dimRoundingMode:c}=r,d=[1,1,1],h=_.computePool3DInfo(o.shape,i,l,d,u,c),p=new Nme(h);return n.runWebGLProgram(p,[s],o.dtype)}var Eme={kernelName:ky,backendName:"webgl",kernelFunc:Cme};function $me(e){let{inputs:t,backend:n,attrs:r}=e,{dy:s,input:a}=t,o=a;mu([s,a],"avgPoolGrad");let{filterSize:i,strides:l,pad:u}=r,c=_.computePool2DInfo(o.shape,i,l,1,u),d=new Tme(c);return n.runWebGLProgram(d,[s],o.dtype)}var _me={kernelName:wy,backendName:"webgl",kernelFunc:$me};function Rme(e){let{inputs:t,backend:n,attrs:r}=e,{a:s,b:a}=t,{transposeA:o,transposeB:i}=r;return Km({a:s,b:a,transposeA:o,transposeB:i,backend:n})}var Dme={kernelName:Qi,backendName:"webgl",kernelFunc:Rme},Fme=class{constructor(e,t,n,r,s,a){this.outputShape=[],this.variableNames=["x","mean","variance"],_.assertAndGetBroadcastShape(e,t),_.assertAndGetBroadcastShape(e,n);let o="0.0";r!=null&&(_.assertAndGetBroadcastShape(e,r),this.variableNames.push("offset"),o="getOffsetAtOutCoords()");let i="1.0";s!=null&&(_.assertAndGetBroadcastShape(e,s),this.variableNames.push("scale"),i="getScaleAtOutCoords()"),this.outputShape=e,this.userCode=` void main() { float x = getXAtOutCoords(); float mean = getMeanAtOutCoords(); float variance = getVarianceAtOutCoords(); float offset = ${o}; float scale = ${i}; float inv = scale * inversesqrt(variance + float(${a})); setOutput(dot(vec3(x, -mean, offset), vec3(inv, inv, 1))); } `}},Mme=class{constructor(e,t,n,r,s,a){this.packedInputs=!0,this.packedOutput=!0,this.variableNames=["x","mean","variance"],_.assertAndGetBroadcastShape(e,t),_.assertAndGetBroadcastShape(e,n);let o="vec4(0.0)";r!=null&&(_.assertAndGetBroadcastShape(e,r),this.variableNames.push("offset"),o="getOffsetAtOutCoords()");let i="vec4(1.0)";s!=null&&(_.assertAndGetBroadcastShape(e,s),this.variableNames.push("scale"),i="getScaleAtOutCoords()"),this.outputShape=e,this.userCode=` void main() { vec4 offset = ${o}; vec4 scale = ${i}; vec4 x = getXAtOutCoords(); vec4 mean = getMeanAtOutCoords(); vec4 variance = getVarianceAtOutCoords(); vec4 inv = scale * inversesqrt(variance + vec4(${a})); setOutput((x - mean) * inv + offset); } `}},Ome=({inputs:e,backend:t,attrs:n})=>{let{x:r,mean:s,variance:a,offset:o,scale:i}=e;k.assert(s.shape.length===a.shape.length,()=>"Batch normalization gradient requires mean and variance to have equal ranks."),k.assert(o==null||s.shape.length===o.shape.length,()=>"Batch normalization gradient requires mean and offset to have equal ranks."),k.assert(i==null||s.shape.length===i.shape.length,()=>"Batch normalization gradient requires mean and scale to have equal ranks.");let{varianceEpsilon:l}=n;l==null&&(l=.001);let u=[r,s,a],c=null;o!=null&&(c=o.shape,u.push(o));let d=null;i!=null&&(d=i.shape,u.push(i));let h=ae().getBool("WEBGL_PACK_NORMALIZATION")?new Mme(r.shape,s.shape,a.shape,c,d,l):new Fme(r.shape,s.shape,a.shape,c,d,l);return t.runWebGLProgram(h,u,u[0].dtype)},Pme={kernelName:cl,backendName:"webgl",kernelFunc:Ome},zme=class{constructor(e){this.variableNames=["source"],this.outputShape=e,this.rank=e.length;let t=It(this.rank),n=`uniform int start[${this.rank}];`,r=Lme(this.rank),s,a=e.map((o,i)=>`sourceLoc.${cb[i]} = start[${i}] + coords.${cb[i]};`);s=` ${t} sourceLoc; ${t} coords = getOutputCoords(); ${a.join(` `)} `,this.userCode=` ${n} void main() { ${s} setOutput(getSource(${r})); } `}getCustomSetupFunc(e){if(e.length!==this.rank)throw Error(`The rank (${this.rank}) of the program must match the length of start (${e.length})`);return(t,n)=>{this.startLoc==null&&(this.startLoc=t.getUniformLocationNoThrow(n,"start"),this.startLoc==null)||t.gl.uniform1iv(this.startLoc,e)}}},cb=["x","y","z","w","u","v"];function Lme(e){if(e===1)return"sourceLoc";if(e<=6)return cb.slice(0,e).map(t=>"sourceLoc."+t).join(",");throw Error(`Slicing for rank ${e} is not yet supported`)}var Bme=class{constructor(e){this.variableNames=["source"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=e,this.rank=e.length;let t=It(this.rank),n=Vn("coords",this.rank),r=Vn("sourceLoc",this.rank),s=this.rank===1?"sourceLoc":`vec2(${r.slice(-2).join()})`,a=`getChannel(getSource(${r.join()}), ${s})`,o=` result.x = ${a}; if (++${n[this.rank-1]} < ${e[this.rank-1]}) { ++${r[this.rank-1]}; result.y = ${a}; --${r[this.rank-1]}; } `,i=this.rank===1?"":` --${n[this.rank-1]}; if (++${n[this.rank-2]} < ${e[this.rank-2]}) { ++${r[this.rank-2]}; result.z = ${a}; if (++${n[this.rank-1]} < ${e[this.rank-1]}) { ++${r[this.rank-1]}; result.w = ${a}; } } `,l=this.rank<=4?`sourceLoc = coords + ${t}(${e.map((u,c)=>`start[${c}]`).join()});`:e.map((u,c)=>`${r[c]} = ${n[c]} + start[${c}];`).join(` `);this.userCode=` uniform int start[${this.rank}]; void main() { ${t} coords = getOutputCoords(); ${t} sourceLoc; ${l} vec4 result = vec4(0.); ${o} ${i} setOutput(result); } `}getCustomSetupFunc(e){if(e.length!==this.rank)throw Error(`The rank (${this.rank}) of the program must match the length of start (${e.length})`);return(t,n)=>{this.startLoc==null&&(this.startLoc=t.getUniformLocationNoThrow(n,"start"),this.startLoc==null)||t.gl.uniform1iv(this.startLoc,e)}}};function Wme(e,t,n,r){let s=r.texData.get(e.dataId),a=r.makeTensorInfo(n,e.dtype),o=r.texData.get(a.dataId);Object.assign(o,s),o.refCount=1,o.shape=n,o.dtype=e.dtype;let i=En.computeFlatOffset(t,k.computeStrides(e.shape));s.slice&&(i+=s.slice.flatOffset),o.slice={flatOffset:i,origDataId:s.slice&&s.slice.origDataId||e.dataId};let l=r.dataRefCount.get(o.slice.origDataId)||1;return r.dataRefCount.set(o.slice.origDataId,l+1),a}function fh(e){let{inputs:t,backend:n,attrs:r}=e,{x:s}=t,{begin:a,size:o}=r,[i,l]=En.parseSliceParams(s,a,o);if(En.assertParamsValid(s,i,l),k.sizeFromShape(l)===0)return n.makeTensorInfo(l,s.dtype,[]);if(n.shouldExecuteOnCPU([s])||s.dtype==="string"){let d=n.texData.get(s.dataId),h=Npe(d.values,i,l,s.shape,s.dtype);return n.makeTensorInfo(l,s.dtype,h)}let{isPacked:u}=n.texData.get(s.dataId),c=En.isSliceContinous(s.shape,i,l);if(u||!c){let d=ae().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new Bme(l):new zme(l),h=d.getCustomSetupFunc(i);return n.runWebGLProgram(d,[s],s.dtype,h)}return n.uploadToGPU(s.dataId),Wme(s,i,l,n)}var Vme={kernelName:rd,backendName:"webgl",kernelFunc:fh},Ume=e=>{let{inputs:t,backend:n,attrs:r}=e,{x:s}=t,{blockShape:a,crops:o}=r;k.assert(s.shape.length<=4,()=>"batchToSpaceND for rank > 4 with a WebGL backend not implemented yet");let i=a.reduce((A,x)=>A*x),l=_.getReshaped(s.shape,a,i),u=_.getPermuted(l.length,a.length),c=_.getReshapedPermuted(s.shape,a,i),d=_.getSliceBeginCoords(o,a.length),h=_.getSliceSize(c,o,a.length),p=[],f=ve({inputs:{x:s},backend:n,attrs:{shape:l}}),m=Un({inputs:{x:f},backend:n,attrs:{perm:u}}),g=ve({inputs:{x:m},backend:n,attrs:{shape:c}}),y=fh({inputs:{x:g},backend:n,attrs:{begin:d,size:h}});return p.push(f),p.push(m),p.push(g),p.forEach(A=>n.disposeIntermediateTensorInfo(A)),y},Hme={kernelName:Xp,backendName:"webgl",kernelFunc:Ume};function Gme(e){let{inputs:t,backend:n,attrs:r}=e,{x:s,weights:a}=t,{size:o}=r,i=n.readSync(s.dataId),l=n.readSync(a.dataId),u=cE(i,l,a.dtype,a.shape,o);return n.makeTensorInfo([o],a.dtype,u)}var jme={kernelName:Iy,backendName:"webgl",kernelFunc:Gme},qme="return float(a != b);",zE=Nn({opSnippet:qme,cpuKernelImpl:kpe,dtype:"bool"}),Kme={kernelName:vl,backendName:"webgl",kernelFunc:zE};function mh(e){let{inputs:t,backend:n}=e,{input:r}=t,s=n.texData.get(r.dataId);return mr({inputs:{x:s.complexTensorInfos.real},backend:n})}var Xme={kernelName:jy,backendName:"webgl",kernelFunc:mh},Zme="return float(int(x));";function Yme(e,t){let n=new Qa(e.shape,Zme),r=t.runWebGLProgram(n,[e],"int32");return{dataId:r.dataId,shape:r.shape,dtype:r.dtype}}function db(e){let{inputs:t,backend:n,attrs:r}=e,{x:s}=t,{dtype:a}=r;if(a==="complex64"){if(s.dtype==="complex64")return mr({inputs:{x:s},backend:n});let o=un(s.shape),i=db({inputs:{x:s},backend:n,attrs:{dtype:"float32"}}),l=eo({inputs:{real:i,imag:o},backend:n});return o.dispose(),n.disposeIntermediateTensorInfo(i),l}if(s.dtype==="complex64"){let o=mh({inputs:{input:s},backend:n}),i=db({inputs:{x:o},backend:n,attrs:{dtype:a}});return n.disposeIntermediateTensorInfo(o),i}if(!k.hasEncodingLoss(s.dtype,a)){let o=mr({inputs:{x:s},backend:n});return{dataId:o.dataId,shape:o.shape,dtype:a}}if(a==="int32")return Yme(s,n);if(a==="bool"){let o=n.makeTensorInfo([],"bool",k.getTypedArrayFromDType("bool",1)),l=zE({inputs:{a:s,b:o},backend:n});return n.disposeIntermediateTensorInfo(o),l}throw new Error(`Error in Cast: failed to cast ${s.dtype} to ${a}`)}var Jme={kernelName:el,backendName:"webgl",kernelFunc:db},LE="return ceil(x);",Qme=it({opSnippet:LE,packedOpSnippet:LE,cpuKernelImpl:spe}),e0e={kernelName:No,backendName:"webgl",kernelFunc:Qme},t0e=class{constructor(e){this.variableNames=["A"],this.outputShape=e,this.userCode=` uniform float minVal; uniform float maxVal; void main() { float value = getAAtOutCoords(); if (isnan(value)) { setOutput(value); return; } setOutput(clamp(value, minVal, maxVal)); } `}getCustomSetupFunc(e,t){return(n,r)=>{this.minLoc==null&&(this.minLoc=n.getUniformLocationNoThrow(r,"minVal"),this.maxLoc=n.getUniformLocationNoThrow(r,"maxVal")),n.gl.uniform1f(this.minLoc,e),n.gl.uniform1f(this.maxLoc,t)}}},n0e=class{constructor(e){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=e,this.userCode=` uniform float minVal; uniform float maxVal; void main() { vec4 value = getAAtOutCoords(); if (any(isnan(value))) { setOutput(value); return; } setOutput(clamp(value, vec4(minVal), vec4(maxVal))); } `}getCustomSetupFunc(e,t){return(n,r)=>{this.minLoc==null&&(this.minLoc=n.getUniformLocationNoThrow(r,"minVal"),this.maxLoc=n.getUniformLocationNoThrow(r,"maxVal")),n.gl.uniform1f(this.minLoc,e),n.gl.uniform1f(this.maxLoc,t)}}};function r0e(e){let{inputs:t,backend:n,attrs:r}=e,{x:s}=t,{clipValueMin:a,clipValueMax:o}=r,i;ae().getBool("WEBGL_PACK_CLIP")?i=new n0e(s.shape):i=new t0e(s.shape);let l=i.getCustomSetupFunc(a,o);return n.runWebGLProgram(i,[s],s.dtype,l)}var s0e={kernelName:Co,backendName:"webgl",kernelFunc:r0e},a0e=class{constructor(e){this.variableNames=["real","imag"],this.outputShape=e,this.userCode=` void main() { float re = abs(getRealAtOutCoords()); float im = abs(getImagAtOutCoords()); float mx = max(re, im); // sadly the length function in glsl is not underflow-safe // (at least not on Intel GPUs). So the safe solution is // to ensure underflow-safety in all cases. setOutput( mx == 0.0 ? 0.0 : mx * length(vec2(1, min(re, im)/mx)) ); } `}};function BE(e,t){return{dataId:t.dataId,dtype:t.dtype,shape:e.shape}}function o0e(e){let{inputs:t,backend:n}=e,{x:r}=t,s=n.texData.get(r.dataId),a=new a0e(r.shape),o=[BE(r,s.complexTensorInfos.real),BE(r,s.complexTensorInfos.imag)];return n.runWebGLProgram(a,o,o[0].dtype)}var i0e={kernelName:Zp,backendName:"webgl",kernelFunc:o0e},l0e=class{constructor(e){this.outputShape=[],this.outputShape=_.computeOutShape(e,1),this.variableNames=e.map((a,o)=>`T${o}`);let t=new Array(e.length-1);t[0]=e[0][1];for(let a=1;a`T${m}`);let i=new Array(e.length-1);i[0]=e[0][t];for(let f=1;f= ${i[f-1]}) { return getChannel( getT${f}(${Zm(o,l,m)}), vec2(${Zm(u,l,m)})); }`}let h=i.length,p=i[i.length-1];d+=` return getChannel( getT${h}(${Zm(o,l,p)}), vec2(${Zm(u,l,p)}));`,this.userCode=` float getValue(${o.map(f=>"int "+f)}) { ${d} } void main() { ${s} coords = getOutputCoords(); vec4 result = vec4(getValue(${a}), 0., 0., 0.); ${a[r-1]} = ${a[r-1]} + 1; if (${a[r-1]} < ${n[r-1]}) { result.g = getValue(${a}); } ${a[r-2]} = ${a[r-2]} + 1; if (${a[r-2]} < ${n[r-2]}) { result.a = getValue(${a}); } ${a[r-1]} = ${a[r-1]} - 1; if (${a[r-2]} < ${n[r-2]} && ${a[r-1]} < ${n[r-1]}) { result.b = getValue(${a}); } setOutput(result); } `}};function Zm(e,t,n){let r=e.indexOf(t);return e.map((a,o)=>o===r?`${a} - ${n}`:a).join()}function Ym(e){let{inputs:t,backend:n}=e,{input:r}=t,s=n.texData.get(r.dataId);return mr({inputs:{x:s.complexTensorInfos.imag},backend:n})}var c0e={kernelName:Ly,backendName:"webgl",kernelFunc:Ym};function Iu(e,t,n){let r=e[0].dtype;if(r==="complex64"){let c=e.map(m=>mh({inputs:{input:m},backend:n})),d=e.map(m=>Ym({inputs:{input:m},backend:n})),h=Iu(c,t,n),p=Iu(d,t,n),f=eo({inputs:{real:h,imag:p},backend:n});return c.forEach(m=>n.disposeIntermediateTensorInfo(m)),d.forEach(m=>n.disposeIntermediateTensorInfo(m)),n.disposeIntermediateTensorInfo(h),n.disposeIntermediateTensorInfo(p),f}let s=n.shouldExecuteOnCPU(e);if(r==="string"&&(s=!0),s){let c=e.map(y=>{let A=k.sizeFromShape(y.shape.slice(t));return ve({inputs:{x:y},backend:n,attrs:{shape:[-1,A]}})}),d=c.map(y=>({vals:n.readSync(y.dataId),shape:y.shape})),h=_.computeOutShape(c.map(y=>y.shape),1),p=c[0].shape[0]===1,f=ape(d,h,r,p),m=_.computeOutShape(e.map(y=>y.shape),t),g=n.makeTensorInfo(m,r,f);return c.forEach(y=>n.disposeIntermediateTensorInfo(y)),g}if(e.length>ae().getNumber("WEBGL_MAX_TEXTURES_IN_SHADER")){let c=Math.floor(e.length/2),d=Iu(e.slice(0,c),t,n),h=Iu(e.slice(c),t,n),p=Iu([d,h],t,n);return n.disposeIntermediateTensorInfo(d),n.disposeIntermediateTensorInfo(h),p}if(ae().getBool("WEBGL_PACK_ARRAY_OPERATIONS")&&e[0].shape.length>1){let c=new u0e(e.map(d=>d.shape),t);return n.runWebGLProgram(c,e,r)}let{tensors2D:a,outShape:o}=d0e(e,t,n),i=new l0e(a.map(c=>c.shape)),l=n.runWebGLProgram(i,a,r);a.forEach(c=>n.disposeIntermediateTensorInfo(c));let u=ve({inputs:{x:l},attrs:{shape:o},backend:n});return n.disposeIntermediateTensorInfo(l),u}function d0e(e,t,n){let r=_.computeOutShape(e.map(a=>a.shape),t);return{tensors2D:e.map(a=>ve({inputs:{x:a},attrs:{shape:[-1,k.sizeFromShape(a.shape.slice(t))]},backend:n})),outShape:r}}function WE(e){let{inputs:t,backend:n,attrs:r}=e,{axis:s}=r,a=k.parseAxisParam(s,t[0].shape)[0],o=_.computeOutShape(t.map(u=>u.shape),a);if(k.sizeFromShape(o)===0)return n.makeTensorInfo(o,t[0].dtype,[]);let i=t.filter(u=>k.sizeFromShape(u.shape)>0);if(i.length===1)return mr({inputs:{x:i[0]},backend:n});let l=i.map(u=>u.shape);return _.assertParamsConsistent(l,a),Iu(i,a,n)}var h0e={kernelName:Ec,backendName:"webgl",kernelFunc:WE},VE=class{constructor(e,t=!1,n=null,r=!1,s=!1){this.variableNames=["x","W"],this.outputShape=e.outShape;let a=e.padInfo.top,o=e.padInfo.left,i=e.strideHeight,l=e.strideWidth,u=e.dilationHeight,c=e.dilationWidth,d=e.filterHeight,h=e.filterWidth,p=Math.floor(e.inChannels/4)*4,f=e.inChannels%4,m=e.dataFormat==="channelsLast",g=m?1:2,y=m?2:3,A=m?3:1,x="",b="";n&&(r?x=`float activation(float a) { float b = getPreluActivationWeightsAtOutCoords(); ${n} }`:s?x=`float activation(float a) { float b = getLeakyreluAlphaAtOutCoords(); ${n} }`:x=` float activation(float x) { ${n} } `,b="result = activation(result);");let v=t?"result += getBiasAtOutCoords();":"";t&&this.variableNames.push("bias"),r&&this.variableNames.push("preluActivationWeights"),s&&this.variableNames.push("leakyreluAlpha"),this.userCode=` ${x} const ivec2 strides = ivec2(${i}, ${l}); const ivec2 pads = ivec2(${a}, ${o}); void main() { ivec4 coords = getOutputCoords(); int batch = coords[0]; int d2 = coords[${A}]; ivec2 xRCCorner = ivec2(coords[${g}], coords[${y}]) * strides - pads; int xRCorner = xRCCorner.x; int xCCorner = xRCCorner.y; // Convolve x(?, ?, d1) with w(:, :, d1, d2) to get y(yR, yC, d2). // ? = to be determined. : = across all values in that axis. float dotProd = 0.0; for (int wR = 0; wR < ${d}; wR++) { int xR = xRCorner + wR * ${u}; if (xR < 0 || xR >= ${e.inHeight}) { continue; } for (int wC = 0; wC < ${h}; wC++) { int xC = xCCorner + wC * ${c}; if (xC < 0 || xC >= ${e.inWidth}) { continue; } for (int d1 = 0; d1 < ${p}; d1 += 4) { vec4 wValues = vec4( getW(wR, wC, d1, d2), getW(wR, wC, d1 + 1, d2), getW(wR, wC, d1 + 2, d2), getW(wR, wC, d1 + 3, d2) ); if (${m}) { vec4 xValues = vec4( getX(batch, xR, xC, d1), getX(batch, xR, xC, d1 + 1), getX(batch, xR, xC, d1 + 2), getX(batch, xR, xC, d1 + 3) ); dotProd += dot(xValues, wValues); } else { vec4 xValues = vec4( getX(batch, d1, xR, xC), getX(batch, d1 + 1, xR, xC), getX(batch, d1 + 2, xR, xC), getX(batch, d1 + 3, xR, xC) ); dotProd += dot(xValues, wValues); } } if (${f===1}) { if (${m}) { dotProd += getX(batch, xR, xC, ${p}) * getW(wR, wC, ${p}, d2); } else { dotProd += getX(batch, ${p}, xR, xC) * getW(wR, wC, ${p}, d2); } } else if (${f===2}) { vec2 wValues = vec2( getW(wR, wC, ${p}, d2), getW(wR, wC, ${p} + 1, d2) ); if (${m}) { vec2 xValues = vec2( getX(batch, xR, xC, ${p}), getX(batch, xR, xC, ${p} + 1) ); dotProd += dot(xValues, wValues); } else { vec2 xValues = vec2( getX(batch, ${p}, xR, xC), getX(batch, ${p} + 1, xR, xC) ); dotProd += dot(xValues, wValues); } } else if (${f===3}) { vec3 wValues = vec3( getW(wR, wC, ${p}, d2), getW(wR, wC, ${p} + 1, d2), getW(wR, wC, ${p} + 2, d2) ); if (${m}) { vec3 xValues = vec3( getX(batch, xR, xC, ${p}), getX(batch, xR, xC, ${p} + 1), getX(batch, xR, xC, ${p} + 2) ); dotProd += dot(xValues, wValues); } else { vec3 xValues = vec3( getX(batch, ${p}, xR, xC), getX(batch, ${p} + 1, xR, xC), getX(batch, ${p} + 2, xR, xC) ); dotProd += dot(xValues, wValues); } } } } float result = dotProd; ${v} ${b} setOutput(result); } `}},p0e=class{constructor(e){this.variableNames=["x","W"],this.outputShape=e.outShape;let t=e.padInfo.front,n=e.padInfo.top,r=e.padInfo.left,s=e.strideDepth,a=e.strideHeight,o=e.strideWidth,i=e.dilationDepth,l=e.dilationHeight,u=e.dilationWidth,c=e.filterDepth,d=e.filterHeight,h=e.filterWidth,p=Math.floor(e.inChannels/4)*4,f=e.inChannels%4;this.userCode=` const ivec3 strides = ivec3(${s}, ${a}, ${o}); const ivec3 pads = ivec3(${t}, ${n}, ${r}); void main() { ivec5 coords = getOutputCoords(); int batch = coords.x; int d2 = coords.u; ivec3 xFRCCorner = ivec3(coords.y, coords.z, coords.w) * strides - pads; int xFCorner = xFRCCorner.x; int xRCorner = xFRCCorner.y; int xCCorner = xFRCCorner.z; // Convolve x(?, ?, ?, d1) with w(:, :, :, d1, d2) to get // y(yF, yR, yC, d2). ? = to be determined. : = across all // values in that axis. float dotProd = 0.0; for (int wF = 0; wF < ${c}; wF++) { int xF = xFCorner + wF * ${i}; if (xF < 0 || xF >= ${e.inDepth}) { continue; } for (int wR = 0; wR < ${d}; wR++) { int xR = xRCorner + wR * ${l}; if (xR < 0 || xR >= ${e.inHeight}) { continue; } for (int wC = 0; wC < ${h}; wC++) { int xC = xCCorner + wC * ${u}; if (xC < 0 || xC >= ${e.inWidth}) { continue; } for (int d1 = 0; d1 < ${p}; d1 += 4) { vec4 xValues = vec4( getX(batch, xF, xR, xC, d1), getX(batch, xF, xR, xC, d1 + 1), getX(batch, xF, xR, xC, d1 + 2), getX(batch, xF, xR, xC, d1 + 3) ); vec4 wValues = vec4( getW(wF, wR, wC, d1, d2), getW(wF, wR, wC, d1 + 1, d2), getW(wF, wR, wC, d1 + 2, d2), getW(wF, wR, wC, d1 + 3, d2) ); dotProd += dot(xValues, wValues); } if (${f===1}) { dotProd += getX(batch, xF, xR, xC, ${p}) * getW(wF, wR, wC, ${p}, d2); } else if (${f===2}) { vec2 xValues = vec2( getX(batch, xF, xR, xC, ${p}), getX(batch, xF, xR, xC, ${p} + 1) ); vec2 wValues = vec2( getW(wF, wR, wC, ${p}, d2), getW(wF, wR, wC, ${p} + 1, d2) ); dotProd += dot(xValues, wValues); } else if (${f===3}) { vec3 xValues = vec3( getX(batch, xF, xR, xC, ${p}), getX(batch, xF, xR, xC, ${p} + 1), getX(batch, xF, xR, xC, ${p} + 2) ); vec3 wValues = vec3( getW(wF, wR, wC, ${p}, d2), getW(wF, wR, wC, ${p} + 1, d2), getW(wF, wR, wC, ${p} + 2, d2) ); dotProd += dot(xValues, wValues); } } } } setOutput(dotProd); } `}},f0e=class{constructor(e,t,n){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=e;let{filterWidth:r,inChannels:s,strideWidth:a,strideHeight:o,padInfo:i,outWidth:l,dilationWidth:u,dilationHeight:c,dataFormat:d}=n,{left:h,top:p}=i,f=s*r,m=Wn(),g=d==="channelsLast",y=g?0:1,A=g?1:2,x="";for(let b=0;b<=1;b++)for(let v=0;v<=1;v++)x+=` blockIndex = rc.y + ${v}; pos = rc.x + ${b}; if(blockIndex < ${e[1]} && pos < ${e[0]}) { offsetY = int(blockIndex / (${l})) * ${o} - ${p}; d0 = offsetY + ${c} * (pos / ${f}); if(d0 < ${t[y]} && d0 >= 0) { offsetX = int(mod(float(blockIndex), ${l}.) * ${a}. - ${h}.); d1 = offsetX + ${u} * (int(mod(float(pos), ${f}.) / ${s}.)); if(d1 < ${t[A]} && d1 >= 0) { ch = int(mod(float(pos), ${s}.)); if (${g}) { innerDims = vec2(d1, ch); result[${b*2+v}] = getChannel( getA(d0, int(innerDims.x), int(innerDims.y)), innerDims); } else { innerDims = vec2(d0, d1); result[${b*2+v}] = getChannel( getA(ch, int(innerDims.x), int(innerDims.y)), innerDims); } } } } `;this.userCode=` void main() { ivec2 rc = getOutputCoords(); vec4 result = vec4(0); int blockIndex, pos, offsetY, d0, offsetX, d1, ch; vec2 innerDims; ${x} ${m.output} = result; } `}};function UE({x:e,filter:t,convInfo:n,backend:r,bias:s=null,preluActivationWeights:a=null,leakyreluAlpha:o=0,activation:i=null}){let l=e.shape,u=r.texData.get(e.dataId),c=n.inChannels,d=l[0]*l[1]*l[2],h=n.outChannels,p=n.dataFormat==="channelsLast",f=!1,m=!1,g,y=[],A=(d===1||h===1)&&c>RE,x=l[2]%2!=0&&!!u.isPacked;if(A||!ae().getBool("WEBGL_LAZILY_UNPACK")||!ae().getBool("WEBGL_PACK_BINARY_OPERATIONS")||!x){let b=p?l[0]*l[1]*l[2]:l[0]*l[2]*l[3],v=ve({inputs:{x:e},backend:r,attrs:{shape:[1,b,n.inChannels]}}),w=ve({inputs:{x:t},backend:r,attrs:{shape:[1,n.inChannels,n.outChannels]}}),I=Km({a:v,b:w,transposeA:f,transposeB:m,backend:r,bias:s,activation:i,preluActivationWeights:a,leakyreluAlpha:o});g=ve({inputs:{x:I},backend:r,attrs:{shape:n.outShape}}),y.push(v),y.push(w),y.push(I)}else{let b=p?l[0]*l[1]*(l[2]+1):l[0]*l[2]*(l[3]+1),v={dataId:e.dataId,shape:[1,b,n.inChannels],dtype:e.dtype},w=u.shape;u.shape=u.shape.slice(),u.shape[u.shape.length-2]++,k.assert(uh(u.shape,v.shape),()=>`packed reshape ${u.shape} to ${v.shape} isn't free`);let I=ve({inputs:{x:t},backend:r,attrs:{shape:[1,n.inChannels,n.outChannels]}});y.push(I);let T=Km({a:v,b:I,backend:r,transposeA:f,transposeB:m,bias:s,activation:i,preluActivationWeights:a,leakyreluAlpha:o}),C=r.texData.get(T.dataId);k.assert(C.isPacked,()=>"batchMatMul result is expected to be packed"),u.shape=w,C.shape=n.outShape,g=mr({inputs:{x:T},backend:r}),g.shape=n.outShape,y.push(T)}for(let b of y)r.disposeIntermediateTensorInfo(b);return g}function HE({x:e,filter:t,convInfo:n,backend:r,bias:s=null,preluActivationWeights:a=null,leakyreluAlpha:o=0,activation:i=null}){let{filterWidth:l,filterHeight:u,inChannels:c,outWidth:d,outHeight:h,dataFormat:p}=n,f=p==="channelsLast",m=l*u*c,g=h*d,y=[m,g],A=!0,x=!1,b=[],v=ve({inputs:{x:e},backend:r,attrs:{shape:e.shape.slice(1)}}),w=ve({inputs:{x:t},backend:r,attrs:{shape:[1,m,k.sizeFromShape(t.shape)/m]}});b.push(v),b.push(w);let I=new f0e(y,v.shape,n),T=r.runWebGLProgram(I,[v],"float32"),C=ve({inputs:{x:T},backend:r,attrs:{shape:[1,y[0],y[1]]}});b.push(T),b.push(C);let M=s!=null,$=a!=null,R=i==="leakyrelu",N=i?Gm(i,!0):null,F=new NE(C.shape,w.shape,[1,g,n.outChannels],A,x,M,N,$,R),B=[C,w];if(s&&B.push(s),$&&B.push(a),R){let ee=r.makeTensorInfo([],"float32",k.createScalarValue(o,"float32"));B.push(ee),b.push(ee)}let j=r.runWebGLProgram(F,B,"float32"),X=f?[1,h,d,n.outChannels]:[1,n.outChannels,h,d],Y=ve({inputs:{x:j},backend:r,attrs:{shape:X}});b.push(j);for(let ee of b)r.disposeIntermediateTensorInfo(ee);return Y}function m0e(e){let{inputs:t,backend:n,attrs:r}=e,{x:s,filter:a}=t,{strides:o,pad:i,dataFormat:l,dilations:u,dimRoundingMode:c}=r,d=_.convertConv2DDataFormat(l),h=_.computeConv2DInfo(s.shape,a.shape,o,u,i,c,!1,d),p;if(h.filterHeight===1&&h.filterWidth===1&&h.dilationHeight===1&&h.dilationWidth===1&&h.strideHeight===1&&h.strideWidth===1&&(h.padInfo.type==="SAME"||h.padInfo.type==="VALID"))p=UE({x:s,filter:a,convInfo:h,backend:n});else if(ae().getBool("WEBGL_CONV_IM2COL")&&s.shape[0]===1)p=HE({x:s,filter:a,convInfo:h,backend:n});else{let m=new VE(h);p=n.runWebGLProgram(m,[s,a],"float32")}let f=ve({inputs:{x:p},backend:n,attrs:{shape:h.outShape}});return n.disposeIntermediateTensorInfo(p),f}var g0e={kernelName:tl,backendName:"webgl",kernelFunc:m0e},y0e=class{constructor(e){this.variableNames=["x","dy"],this.outputShape=e.filterShape;let t=e.strideHeight,n=e.strideWidth,r=e.padInfo.top,s=e.padInfo.left,a=e.dataFormat==="channelsLast";this.userCode=` void main() { ivec4 coords = getOutputCoords(); int wR = coords.x; int wC = coords.y; int d1 = coords.z; int d2 = coords.w; // Convolve x(?, ?, d1) with dy(:, :, d2) to get dw(wR, wC, d1, d2). // ? = to be determined. : = across all values in that axis. float dotProd = 0.0; for (int b = 0; b < ${e.batchSize}; b++) { for (int yR = 0; yR < ${e.outHeight}; yR++) { int xR = wR + yR * ${t} - ${r}; if (xR < 0 || xR >= ${e.inHeight}) { continue; } for (int yC = 0; yC < ${e.outWidth}; yC++) { int xC = wC + yC * ${n} - ${s}; if (xC < 0 || xC >= ${e.inWidth}) { continue; } if (${a}) { float dyValue = getDy(b, yR, yC, d2); float xValue = getX(b, xR, xC, d1); dotProd += (xValue * dyValue); } else { float dyValue = getDy(b, d2, yR, yC); float xValue = getX(b, d1, xR, xC); dotProd += (xValue * dyValue); } } } } setOutput(dotProd); } `}},A0e=class{constructor(e){this.variableNames=["dy","W"],this.outputShape=e.inShape;let t=e.filterHeight,n=e.filterWidth,r=e.strideHeight,s=e.strideWidth,a=e.dataFormat==="channelsLast",o=t-1-e.padInfo.top,i=n-1-e.padInfo.left,l=a?1:2,u=a?2:3,c=a?3:1;this.userCode=` const ivec2 pads = ivec2(${o}, ${i}); void main() { ivec4 coords = getOutputCoords(); int batch = coords[0]; int d1 = coords[${c}]; ivec2 dyCorner = ivec2(coords[${l}], coords[${u}]) - pads; int dyRCorner = dyCorner.x; int dyCCorner = dyCorner.y; // Convolve dy(?, ?, d2) with w(:, :, d1, d2) to compute dx(xR, xC, d1). // ? = to be determined. : = across all values in that axis. float dotProd = 0.0; for (int wR = 0; wR < ${t}; wR++) { float dyR = float(dyRCorner + wR) / ${r}.0; if (dyR < 0.0 || dyR >= ${e.outHeight}.0 || fract(dyR) > 0.0) { continue; } int idyR = int(dyR); int wRPerm = ${t} - 1 - wR; for (int wC = 0; wC < ${n}; wC++) { float dyC = float(dyCCorner + wC) / ${s}.0; if (dyC < 0.0 || dyC >= ${e.outWidth}.0 || fract(dyC) > 0.0) { continue; } int idyC = int(dyC); int wCPerm = ${n} - 1 - wC; for (int d2 = 0; d2 < ${e.outChannels}; d2++) { if (${a}) { float xValue = getDy(batch, idyR, idyC, d2); float wValue = getW(wRPerm, wCPerm, d1, d2); dotProd += xValue * wValue; } else { float xValue = getDy(batch, d2, idyR, idyC); float wValue = getW(wRPerm, wCPerm, d1, d2); dotProd += xValue * wValue; } } } } setOutput(dotProd); } `}},x0e=class{constructor(e){this.variableNames=["x","dy"],this.outputShape=e.filterShape;let t=e.strideDepth,n=e.strideHeight,r=e.strideWidth,s=e.padInfo.front,a=e.padInfo.top,o=e.padInfo.left;this.userCode=` void main() { ivec5 coords = getOutputCoords(); int wF = coords.x; int wR = coords.y; int wC = coords.z; int d1 = coords.w; int d2 = coords.u; float dotProd = 0.0; for (int b = 0; b < ${e.batchSize}; b++) { for (int yF = 0; yF < ${e.outDepth}; yF++) { int xF = wF + yF * ${t} - ${s}; if (xF < 0 || xF >= ${e.inDepth}) { continue; } for (int yR = 0; yR < ${e.outHeight}; yR++) { int xR = wR + yR * ${n} - ${a}; if (xR < 0 || xR >= ${e.inHeight}) { continue; } for (int yC = 0; yC < ${e.outWidth}; yC++) { int xC = wC + yC * ${r} - ${o}; if (xC < 0 || xC >= ${e.inWidth}) { continue; } float dyValue = getDy(b, yF, yR, yC, d2); float xValue = getX(b, xF, xR, xC, d1); dotProd += (xValue * dyValue); } } } } setOutput(dotProd); } `}},b0e=class{constructor(e){this.variableNames=["dy","W"],this.outputShape=e.inShape;let t=e.filterDepth,n=e.filterHeight,r=e.filterWidth,s=e.strideDepth,a=e.strideHeight,o=e.strideWidth,i=t-1-e.padInfo.front,l=n-1-e.padInfo.top,u=r-1-e.padInfo.left;this.userCode=` const ivec3 pads = ivec3(${i}, ${l}, ${u}); void main() { ivec5 coords = getOutputCoords(); int batch = coords.x; int d1 = coords.u; ivec3 dyCorner = ivec3(coords.y, coords.z, coords.w) - pads; int dyFCorner = dyCorner.x; int dyRCorner = dyCorner.y; int dyCCorner = dyCorner.z; float dotProd = 0.0; for (int wF = 0; wF < ${t}; wF++) { float dyF = float(dyFCorner + wF) / ${s}.0; if (dyF < 0.0 || dyF >= ${e.outDepth}.0 || fract(dyF) > 0.0) { continue; } int idyF = int(dyF); int wFPerm = ${t} - 1 - wF; for (int wR = 0; wR < ${n}; wR++) { float dyR = float(dyRCorner + wR) / ${a}.0; if (dyR < 0.0 || dyR >= ${e.outHeight}.0 || fract(dyR) > 0.0) { continue; } int idyR = int(dyR); int wRPerm = ${n} - 1 - wR; for (int wC = 0; wC < ${r}; wC++) { float dyC = float(dyCCorner + wC) / ${o}.0; if (dyC < 0.0 || dyC >= ${e.outWidth}.0 || fract(dyC) > 0.0) { continue; } int idyC = int(dyC); int wCPerm = ${r} - 1 - wC; for (int d2 = 0; d2 < ${e.outChannels}; d2++) { float xValue = getDy(batch, idyF, idyR, idyC, d2); float wValue = getW(wFPerm, wRPerm, wCPerm, d1, d2); dotProd += xValue * wValue; } } } } setOutput(dotProd); } `}};function v0e(e){let{inputs:t,backend:n,attrs:r}=e,{x:s,dy:a}=t,{strides:o,pad:i,dataFormat:l,dimRoundingMode:u,filterShape:c}=r,d=_.convertConv2DDataFormat(l),h=_.computeConv2DInfo(s.shape,c,o,1,i,u,!1,d),p=new y0e(h);return n.runWebGLProgram(p,[s,a],"float32")}var w0e={kernelName:Ty,backendName:"webgl",kernelFunc:v0e};function k0e(e){let{inputs:t,backend:n,attrs:r}=e,{dy:s,filter:a}=t,{inputShape:o,strides:i,pad:l,dataFormat:u,dimRoundingMode:c}=r,d=_.convertConv2DDataFormat(u),h=_.computeConv2DInfo(o,a.shape,i,1,l,c,!1,d),p=new A0e(h);return n.runWebGLProgram(p,[s,a],"float32")}var I0e={kernelName:nl,backendName:"webgl",kernelFunc:k0e};function S0e(e){let{inputs:t,backend:n,attrs:r}=e,{x:s,filter:a}=t,{strides:o,pad:i,dilations:l}=r,u=_.computeConv3DInfo(s.shape,a.shape,o,l,i),c=new p0e(u);return n.runWebGLProgram(c,[s,a],"float32")}var T0e={kernelName:Yp,backendName:"webgl",kernelFunc:S0e};function N0e(e){let{inputs:t,backend:n,attrs:r}=e,{x:s,dy:a}=t,{strides:o,pad:i,filterShape:l}=r,u=_.computeConv3DInfo(s.shape,l,o,1,i),c=new x0e(u);return n.runWebGLProgram(c,[s,a],"float32")}var C0e={kernelName:Ny,backendName:"webgl",kernelFunc:N0e};function E0e(e){let{inputs:t,backend:n,attrs:r}=e,{dy:s,filter:a}=t,{pad:o,strides:i,inputShape:l}=r,u=_.computeConv3DInfo(l,a.shape,i,1,o),c=new b0e(u);return n.runWebGLProgram(c,[s,a],"float32")}var $0e={kernelName:Cy,backendName:"webgl",kernelFunc:E0e},_0e=TE+` return cos(x); `,R0e=it({opSnippet:_0e}),D0e={kernelName:rl,backendName:"webgl",kernelFunc:R0e},F0e=` float e2x = exp(-x); return (e2x + 1.0 / e2x) / 2.0; `,M0e=it({opSnippet:F0e}),O0e={kernelName:$c,backendName:"webgl",kernelFunc:M0e},P0e=class{constructor(e,t,n,r,s){this.variableNames=["Image","Boxes","BoxInd"],this.outputShape=[];let[a,o,i,l]=e,[u]=t,[c,d]=n;this.outputShape=[u,c,d,l];let h=r==="bilinear"?1:0,[p,f]=[`${o-1}.0`,`${i-1}.0`],[m,g,y]=c>1?[`${(o-1)/(c-1)}`,"(y2-y1) * height_ratio",`y1*${p} + float(y)*(height_scale)`]:["0.0","0.0",`0.5 * (y1+y2) * ${p}`],[A,x,b]=d>1?[`${(i-1)/(d-1)}`,"(x2-x1) * width_ratio",`x1*${f} + float(x)*(width_scale)`]:["0.0","0.0",`0.5 * (x1+x2) * ${f}`];this.userCode=` const float height_ratio = float(${m}); const float width_ratio = float(${A}); void main() { ivec4 coords = getOutputCoords(); int b = coords[0]; int y = coords[1]; int x = coords[2]; int d = coords[3]; // get box vals float y1 = getBoxes(b,0); float x1 = getBoxes(b,1); float y2 = getBoxes(b,2); float x2 = getBoxes(b,3); // get image in batch index int bInd = round(getBoxInd(b)); if(bInd < 0 || bInd >= ${a}) { return; } float height_scale = ${g}; float width_scale = ${x}; float in_y = ${y}; if( in_y < 0.0 || in_y > ${p} ) { setOutput(float(${s})); return; } float in_x = ${b}; if( in_x < 0.0 || in_x > ${f} ) { setOutput(float(${s})); return; } vec2 sourceFracIndexCR = vec2(in_x,in_y); if(${h} == 1) { // Compute the four integer indices. ivec2 sourceFloorCR = ivec2(sourceFracIndexCR); ivec2 sourceCeilCR = ivec2(ceil(sourceFracIndexCR)); float topLeft = getImage(b, sourceFloorCR.y, sourceFloorCR.x, d); float bottomLeft = getImage(b, sourceCeilCR.y, sourceFloorCR.x, d); float topRight = getImage(b, sourceFloorCR.y, sourceCeilCR.x, d); float bottomRight = getImage(b, sourceCeilCR.y, sourceCeilCR.x, d); vec2 fracCR = sourceFracIndexCR - vec2(sourceFloorCR); float top = topLeft + (topRight - topLeft) * fracCR.x; float bottom = bottomLeft + (bottomRight - bottomLeft) * fracCR.x; float newValue = top + (bottom - top) * fracCR.y; setOutput(newValue); } else { // Compute the coordinators of nearest neighbor point. ivec2 sourceNearestCR = ivec2(floor( sourceFracIndexCR + vec2(0.5,0.5))); float newValue = getImage(b, sourceNearestCR.y, sourceNearestCR.x, d); setOutput(newValue); } } `}},z0e=e=>{let{inputs:t,backend:n,attrs:r}=e,{image:s,boxes:a,boxInd:o}=t,{cropSize:i,method:l,extrapolationValue:u}=r,c=new P0e(s.shape,a.shape,i,l,u);return n.runWebGLProgram(c,[s,a,o],"float32")},L0e={kernelName:_c,backendName:"webgl",kernelFunc:z0e},GE=class{constructor(e,t,n){this.variableNames=["x"],this.outputShape=e;let r=e.length,s=t?"0.0":`getX(${jE(r,"coords")})`,a=e[e.length-1],o="",i="";t?(o=n?`end != ${a-1}`:"end != 0",i=n?"end + 1":"end - 1"):(o=n?`end + pow2 < ${a}`:"end >= pow2",i=n?"end + pow2":"end - pow2"),this.userCode=` uniform float index; void main() { ${It(r)} coords = getOutputCoords(); int end = ${qE(r,"coords")}; float val = ${s}; int pow2 = int(pow(2.0, index)); if (${o}) { int idx = ${i}; ${qE(r,"coords")} = idx; val += getX(${jE(r,"coords")}); } setOutput(val); } `}getCustomSetupFunc(e){return(t,n)=>{this.index==null&&(this.index=t.getUniformLocation(n,"index")),t.gl.uniform1f(this.index,e)}}};function jE(e,t){if(e===1)return`${t}`;if(e===2)return`${t}.x, ${t}.y`;if(e===3)return`${t}.x, ${t}.y, ${t}.z`;if(e===4)return`${t}.x, ${t}.y, ${t}.z, ${t}.w`;throw Error(`Cumulative sum for rank ${e} is not yet supported`)}function qE(e,t){if(e===1)return`${t}`;if(e===2)return`${t}.y`;if(e===3)return`${t}.z`;if(e===4)return`${t}.w`;throw Error(`Cumulative sum for rank ${e} is not yet supported`)}function B0e(e){let{inputs:t,backend:n,attrs:r}=e,{x:s}=t,{axis:a,exclusive:o,reverse:i}=r,l=s.shape.length,u=_.getAxesPermutation([a],l),c=s;u!=null&&(c=Un({inputs:{x:s},backend:n,attrs:{perm:u}}));let d=_.getInnerMostAxes(1,l)[0];if(d!==l-1)throw new Error(`WebGL cumsum shader expects an inner-most axis=${s.shape.length-1} but got axis=${a}`);let h=c.shape[d],p=mr({inputs:{x:c},backend:n});for(let f=0;f<=Math.ceil(Math.log2(h))-1;f++){let m=new GE(c.shape,!1,i),g=m.getCustomSetupFunc(f),y=p;p=n.runWebGLProgram(m,[p],p.dtype,g),n.disposeIntermediateTensorInfo(y)}if(o){let f=new GE(c.shape,o,i),m=p;p=n.runWebGLProgram(f,[p],p.dtype),n.disposeIntermediateTensorInfo(m)}if(u!=null){let f=_.getUndoAxesPermutation(u),m=Un({inputs:{x:p},backend:n,attrs:{perm:f}});return n.disposeIntermediateTensorInfo(p),n.disposeIntermediateTensorInfo(c),m}return p}var W0e={kernelName:sl,backendName:"webgl",kernelFunc:B0e};function V0e(e){let{inputs:t,backend:n,attrs:r}=e,{x:s,weights:a}=t,{size:o,binaryOutput:i}=r;if(s.shape.length===1){let l=n.readSync(s.dataId),u=n.readSync(a.dataId),c=cE(l,u,a.dtype,a.shape,o);return n.makeTensorInfo([o],a.dtype,c)}else if(s.shape.length===2){let l=n.bufferSync(s),u=n.bufferSync(a),c=rpe(l,u,o,i);return n.makeTensorInfo(c.shape,a.dtype,c.values)}throw new Error(`Error in denseBincount: input must be at most rank 2, but got rank${s.shape.length}.`)}var U0e={kernelName:Ey,backendName:"webgl",kernelFunc:V0e},H0e=class{constructor(e,t,n){this.variableNames=["x"],this.outputShape=[],this.outputShape=e,this.blockSize=t,this.dataFormat=n,this.userCode=` void main() { ivec4 coords = getOutputCoords(); int b = coords[0]; int h = ${this.getHeightCoordString()}; int w = ${this.getWidthCoordString()}; int d = ${this.getDepthCoordString()}; int in_h = h / ${t}; int offset_h = imod(h, ${t}); int in_w = w / ${t}; int offset_w = imod(w, ${t}); int offset_d = (offset_h * ${t} + offset_w) * ${this.getOutputDepthSize()}; int in_d = d + offset_d; float result = ${this.getInputSamplingString()}; setOutput(result); } `}getHeightCoordString(){return this.dataFormat==="NHWC"?"coords[1]":"coords[2]"}getWidthCoordString(){return this.dataFormat==="NHWC"?"coords[2]":"coords[3]"}getDepthCoordString(){return this.dataFormat==="NHWC"?"coords[3]":"coords[1]"}getOutputDepthSize(){return this.dataFormat==="NHWC"?this.outputShape[3]:this.outputShape[1]}getInputSamplingString(){return this.dataFormat==="NHWC"?"getX(b, in_h, in_w, in_d)":"getX(b, in_d, in_h, in_w)"}};function G0e(e){let{inputs:t,backend:n,attrs:r}=e,{x:s}=t,{blockSize:a,dataFormat:o}=r;k.assert(a>1,()=>`blockSize should be > 1 for depthToSpace, but was: ${a}`);let i=s.shape[0],l=o==="NHWC"?s.shape[1]:s.shape[2],u=o==="NHWC"?s.shape[2]:s.shape[3],c=o==="NHWC"?s.shape[3]:s.shape[1],d=l*a,h=u*a,p=c/(a*a),f=o==="NHWC"?[i,d,h,p]:[i,p,d,h],m=new H0e(f,a,o);return n.runWebGLProgram(m,[s],s.dtype)}var j0e={kernelName:Rc,backendName:"webgl",kernelFunc:G0e},KE=class{constructor(e,t=!1,n=null,r=!1,s=!1){this.variableNames=["x","W"],this.outputShape=e.outShape;let a=e.inHeight,o=e.inWidth,i=e.padInfo.top,l=e.padInfo.left,u=e.strideHeight,c=e.strideWidth,d=e.dilationHeight,h=e.dilationWidth,p=e.filterHeight,f=e.filterWidth,m=e.outChannels/e.inChannels,g="",y="";n&&(r?g=`float activation(float a) { float b = getPreluActivationWeightsAtOutCoords(); ${n} }`:s?g=`float activation(float a) { float b = getLeakyreluAlphaAtOutCoords(); ${n} }`:g=` float activation(float x) { ${n} } `,y="result = activation(result);");let A=t?"result += getBiasAtOutCoords();":"";t&&this.variableNames.push("bias"),r&&this.variableNames.push("preluActivationWeights"),s&&this.variableNames.push("leakyreluAlpha"),this.userCode=` ${g} const ivec2 strides = ivec2(${u}, ${c}); const ivec2 pads = ivec2(${i}, ${l}); void main() { ivec4 coords = getOutputCoords(); int batch = coords.x; ivec2 xRCCorner = coords.yz * strides - pads; int d2 = coords.w; int d1 = d2 / ${m}; int q = d2 - d1 * ${m}; int xRCorner = xRCCorner.x; int xCCorner = xRCCorner.y; // Convolve x(?, ?, d1) with w(:, :, d1, q) to get y(yR, yC, d2). // ? = to be determined. : = across all values in that axis. float dotProd = 0.0; // TO DO(dsmilkov): Flatten the two for loops and vec4 the operations. for (int wR = 0; wR < ${p}; wR++) { int xR = xRCorner + wR * ${d}; if (xR < 0 || xR >= ${a}) { continue; } for (int wC = 0; wC < ${f}; wC++) { int xC = xCCorner + wC * ${h}; if (xC < 0 || xC >= ${o}) { continue; } float xVal = getX(batch, xR, xC, d1); float wVal = getW(wR, wC, d1, q); dotProd += xVal * wVal; } } float result = dotProd; ${A} ${y} setOutput(result); } `}},XE=class{constructor(e,t=!1,n=null,r=!1,s=!1){this.variableNames=["x","W"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=e.outShape;let a=e.outChannels/e.inChannels,o=e.inHeight,i=e.inWidth,l=e.padInfo.top,u=e.padInfo.left,c=e.strideHeight,d=e.strideWidth,h=e.dilationHeight,p=e.dilationWidth,f=e.filterHeight,m=e.filterWidth,g=m,y=` int xR; int xC; int xCOffset; vec4 wTexel; vec4 previous; vec4 final;`;for(let v=0;v=0 && xR < ${o}) { `;for(let w=0;w<(g+1)/2;w++){let I=w*2,T=I*p;if(y+=` xC = xCCorner + ${T}; `,d===1){if(I= 0 && xCOffset < ${i} && xTexelC${T}Ready == 0) { xTexelC${T} = getX(batch, xR, xCOffset, d1); // Need to manually clear unused channels in case // we're reading from recycled texture. if (xCOffset + 1 >= ${i}) { xTexelC${T}.zw = vec2(0.0); } xTexelC${T}Ready = 1; } `,p===1&&T>0?y+=` xC${I} = vec4(xTexelC${T-2}.zw, xTexelC${T}.xy); `:y+=` xCOffset = xC + 1 - 2; if (xCOffset >= 0 && xCOffset < ${i}) { previous = getX(batch, xR, xCOffset, d1); // Need to manually clear unused channels in case // we're reading from recycled texture. if (xCOffset + 1 >= ${i}) { previous.zw = vec2(0.0); } xC${I} = vec4(previous.zw, xTexelC${T}.xy); } else { xC${I} = vec4(0.0, 0.0, xTexelC${T}.xy); } `):y+=` if (xC >= 0 && xC < ${i} && xTexelC${T}Ready == 0) { xTexelC${T} = getX(batch, xR, xC, d1); if (xC + 1 >= ${i}) { xTexelC${T}.zw = vec2(0.0); } xTexelC${T}Ready = 1; } xC${I} = xTexelC${T}; `,T+1= 0 && xCOffset < ${i} && xTexelC${T+2}Ready == 0) { xTexelC${T+2} = getX(batch, xR, xCOffset, d1); // Need to manually clear unused channels in case // we're reading from recycled texture. if (xCOffset + 1 >= ${i}) { xTexelC${T+2}.zw = vec2(0.0); } xTexelC${T+2}Ready = 1; } `,p>1&&(y+=` xCOffset -= 2; if (xCOffset >= 0 && xCOffset < ${i} && xTexelC${T}Ready == 0) { xTexelC${T} = getX(batch, xR, xCOffset, d1); xTexelC${T}Ready = 1; } `),y+=` xC${I+1} = vec4(xTexelC${T}.zw, xTexelC${T+2}.xy); `):C===1?y+=` xC${I+1} = xTexelC${T}; `:y+=` xCOffset = xC + ${C}; if (xCOffset >= 0 && xCOffset < ${i} && xTexelC${T+2}Ready == 0) { xTexelC${T+2} = getX(batch, xR, xCOffset, d1); if (xCOffset + 1 >= ${i}) { xTexelC${T+2}.zw = vec2(0.0); } xTexelC${T+2}Ready = 1; } xC${I+1} = xTexelC${T+2}; `}}else T= 0 && xCOffset < ${i} && xTexelC${T}Ready == 0) { xTexelC${T} = getX(batch, xR, xCOffset, d1); // Need to manually clear unused channels in case // we're reading from recycled texture. if (xCOffset + 1 >= ${i}) { xTexelC${T}.zw = vec2(0.0); } xTexelC${T}Ready = 1; } if(xC + 1 >= 0 && xC + 1 < ${i} && xTexelC${T+2}Ready == 0) { xTexelC${T+2} = getX(batch, xR, xC + 1, d1); // Need to manually clear unused channels in case // we're reading from recycled texture. if (xC + 2 >= ${i}) { xTexelC${T+2}.zw = vec2(0.0); } xTexelC${T+2}Ready = 1; } xC${I} = vec4(xTexelC${T}.zw, xTexelC${T+2}.zw); `,T+1= 0 && xCOffset < ${i}) { final = getX(batch, xR, xCOffset, d1); } xC${I+1} = vec4(xTexelC${T+2}.xy, final.xy); `)):(y+=` if(xC >= 0 && xC < ${i} && xTexelC${T}Ready == 0) { xTexelC${T} = getX(batch, xR, xC, d1); if (xC + 1 >= ${i}) { xTexelC${T}.zw = vec2(0.0); } xTexelC${T}Ready = 1; } xCOffset = xC + ${d}; if(xCOffset >= 0 && xCOffset < ${i} && xTexelC${T+2}Ready == 0) { xTexelC${T+2} = getX(batch, xR, xCOffset, d1); if (xCOffset + 1 >= ${i}) { xTexelC${T+2}.zw = vec2(0.); } xTexelC${T+2}Ready = 1; } xC${I} = vec4( xTexelC${T}.xy, xTexelC${T+2}.xy); `,T+1`Error in depthwiseConv2d: Either strides or dilations must be 1. Got strides ${o} and dilations '${c}'`);let d=_.computeConv2DInfo(s.shape,a.shape,o,c,i,u,!0),h;return ae().getBool("WEBGL_PACK_DEPTHWISECONV")&&d.strideWidth<=2&&d.outChannels/d.inChannels==1?h=new XE(d):h=new KE(d),n.runWebGLProgram(h,[s,a],"float32")}var K0e={kernelName:al,backendName:"webgl",kernelFunc:q0e},X0e=class{constructor(e){this.variableNames=["x","dy"],this.outputShape=e.filterShape;let t=e.strideHeight,n=e.strideWidth,r=e.padInfo.top,s=e.padInfo.left,a=e.outChannels/e.inChannels;this.userCode=` void main() { ivec4 coords = getOutputCoords(); int wR = coords.x; int wC = coords.y; int d1 = coords.z; int dm = coords.w; int d2 = d1 * ${a} + dm; float dotProd = 0.0; // TO DO: Vec4 over the batch size for (int b = 0; b < ${e.batchSize}; b++) { for (int yR = 0; yR < ${e.outHeight}; yR++) { int xR = wR + yR * ${t} - ${r}; if (xR < 0 || xR >= ${e.inHeight}) { continue; } for (int yC = 0; yC < ${e.outWidth}; yC++) { int xC = wC + yC * ${n} - ${s}; if (xC < 0 || xC >= ${e.inWidth}) { continue; } float dyValue = getDy(b, yR, yC, d2); float xValue = getX(b, xR, xC, d1); dotProd += (xValue * dyValue); } } } setOutput(dotProd); } `}},Z0e=class{constructor(e){this.variableNames=["dy","W"],this.outputShape=e.inShape;let t=e.filterHeight,n=e.filterWidth,r=e.strideHeight,s=e.strideWidth,a=t-1-e.padInfo.top,o=n-1-e.padInfo.left,i=e.outChannels/e.inChannels;this.userCode=` const ivec2 pads = ivec2(${a}, ${o}); void main() { ivec4 coords = getOutputCoords(); int batch = coords[0]; int d1 = coords[3]; ivec2 dyCorner = coords.yz - pads; int dyRCorner = dyCorner.x; int dyCCorner = dyCorner.y; float dotProd = 0.0; for (int wR = 0; wR < ${t}; wR++) { float dyR = float(dyRCorner + wR) / ${r}.0; if (dyR < 0.0 || dyR >= ${e.outHeight}.0 || fract(dyR) > 0.0) { continue; } int idyR = int(dyR); int wRPerm = ${t} - 1 - wR; for (int wC = 0; wC < ${n}; wC++) { float dyC = float(dyCCorner + wC) / ${s}.0; if (dyC < 0.0 || dyC >= ${e.outWidth}.0 || fract(dyC) > 0.0) { continue; } int idyC = int(dyC); int wCPerm = ${n} - 1 - wC; // TO DO: Vec4 over the channelMul for (int dm = 0; dm < ${i}; dm++) { int d2 = d1 * ${i} + dm; float xValue = getDy(batch, idyR, idyC, d2); float wValue = getW(wRPerm, wCPerm, d1, dm); dotProd += xValue * wValue; } } } setOutput(dotProd); } `}};function Y0e(e){let{inputs:t,backend:n,attrs:r}=e,{x:s,dy:a}=t,{strides:o,dilations:i,pad:l,dimRoundingMode:u,filterShape:c}=r,d=_.computeConv2DInfo(s.shape,c,o,i,l,u,!0),h=new X0e(d);return n.runWebGLProgram(h,[s,a],"float32")}var J0e={kernelName:$y,backendName:"webgl",kernelFunc:Y0e};function Q0e(e){let{inputs:t,backend:n,attrs:r}=e,{dy:s,filter:a}=t,{strides:o,dilations:i,pad:l,dimRoundingMode:u,inputShape:c}=r,d=_.computeConv2DInfo(c,a.shape,o,i,l,u,!0),h=new Z0e(d);return n.runWebGLProgram(h,[s,a],"float32")}var ege={kernelName:_y,backendName:"webgl",kernelFunc:Q0e},tge=class{constructor(e){this.variableNames=["X"],this.outputShape=[e,e],this.userCode=` void main() { ivec2 coords = getOutputCoords(); float val = coords[0] == coords[1] ? getX(coords[0]) : 0.0; setOutput(val); } `}};function nge(e){let{inputs:t,backend:n}=e,{x:r}=t,s=[...r.shape,...r.shape],a=k.sizeFromShape(r.shape),o=ve({inputs:{x:r},backend:n,attrs:{shape:[a]}}),i=new tge(a),l=n.runWebGLProgram(i,[o],o.dtype),u=ve({inputs:{x:l},backend:n,attrs:{shape:s}});return n.disposeIntermediateTensorInfo(o),n.disposeIntermediateTensorInfo(l),u}var rge={kernelName:Ry,backendName:"webgl",kernelFunc:nge},sge=class{constructor(e){this.variableNames=["x","W"],this.outputShape=e.outShape;let{inHeight:t,inWidth:n,padInfo:r,strideHeight:s,strideWidth:a,filterHeight:o,filterWidth:i,dilationHeight:l,dilationWidth:u}=e,{top:c,left:d}=r;this.userCode=` const ivec2 strides = ivec2(${s}, ${a}); const ivec2 pads = ivec2(${c}, ${d}); const float neg_infinity = -3.4e38; void main() { ivec4 coords = getOutputCoords(); int batch = coords.x; int d1 = coords.w; ivec2 outTopLeftCorner = coords.yz * strides - pads; int hBeg = outTopLeftCorner.x; int wBeg = outTopLeftCorner.y; float curVal = neg_infinity; for (int h = 0; h < ${o}; h++) { int hIn = hBeg + h * ${l}; if (hIn >= 0 && hIn < ${t}) { for (int w = 0; w < ${i}; w++) { int wIn = wBeg + w * ${u}; if (wIn >= 0 && wIn < ${n}) { float xVal = getX(batch, hIn, wIn, d1); float wVal = getW(h, w, d1); float val = xVal + wVal; if (val > curVal) { curVal = val; } } } } } float result = curVal; setOutput(result); } `}};function age(e){let{inputs:t,backend:n,attrs:r}=e,{x:s,filter:a}=t,{strides:o,pad:i,dilations:l}=r,u=_.computeDilation2DInfo(s.shape,a.shape,o,i,"NHWC",l),c,d=new sge(u);c=n.runWebGLProgram(d,[s,a],"float32");let h=ve({inputs:{x:c},backend:n,attrs:{shape:u.outShape}});return n.disposeIntermediateTensorInfo(c),h}var oge={kernelName:Jp,backendName:"webgl",kernelFunc:age};function ige(e){let{inputs:t,backend:n,attrs:r}=e,{equation:s}=r,a=t,{allDims:o,summedDims:i,idDims:l}=_.decodeEinsumEquation(s,a.length);_.checkEinsumDimSizes(o.length,l,a);let{path:u,steps:c}=_.getEinsumComputePath(i,l),d=c.length,h=null,p=o.length,f=[];for(let m=0;m=0&&(h=qm({inputs:{x:h},backend:n,attrs:{axis:u[m]-(o.length-p),keepDims:!1}}),f.push(h)),p--)}for(let m of f)m!==h&&n.disposeIntermediateTensorInfo(m);return h}var lge={kernelName:My,backendName:"webgl",kernelFunc:ige},uge="return (x >= 0.0) ? x : (exp(x) - 1.0);",cge=` vec4 result; result.r = (x.r >= 0.0) ? x.r : (exp(x.r) - 1.0); result.g = (x.g >= 0.0) ? x.g : (exp(x.g) - 1.0); result.b = (x.b >= 0.0) ? x.b : (exp(x.b) - 1.0); result.a = (x.a >= 0.0) ? x.a : (exp(x.a) - 1.0); return result; `,dge=it({opSnippet:uge,packedOpSnippet:cge}),hge={kernelName:Dc,backendName:"webgl",kernelFunc:dge},pge="return (b >= 1.0) ? a : a * (b + 1.0);",fge=` vec4 bGTEZero = vec4(greaterThanEqual(b, vec4(0.))); return (bGTEZero * a) + ((vec4(1.0) - bGTEZero) * (a * (b + vec4(1.0)))); `,mge=e=>{let{inputs:t,backend:n}=e,{dy:r,y:s}=t,a=ae().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new hh(fge,r.shape,s.shape):new ku(pge,r.shape,s.shape);return n.runWebGLProgram(a,[r,s],r.dtype)},gge={kernelName:Oy,backendName:"webgl",kernelFunc:mge},yge=` return vec4(equal(a, b)); `,Age="return float(a == b);",xge=Nn({opSnippet:Age,packedOpSnippet:yge,dtype:"bool",cpuKernelImpl:ope}),bge={kernelName:il,backendName:"webgl",kernelFunc:xge},vge=` // Error function is calculated approximately with elementary function. // See "Handbook of Mathematical Functions with Formulas, // Graphs, and Mathematical Tables", Abramowitz and Stegun. float p = ${_.ERF_P}; float a1 = ${_.ERF_A1}; float a2 = ${_.ERF_A2}; float a3 = ${_.ERF_A3}; float a4 = ${_.ERF_A4}; float a5 = ${_.ERF_A5}; float sign = sign(x); x = abs(x); float t = 1.0 / (1.0 + p * x); return sign * (1.0 - (((((a5*t + a4)*t) + a3)*t + a2)*t + a1)*t*exp(-x*x)); `,wge=it({opSnippet:vge}),kge={kernelName:Fc,backendName:"webgl",kernelFunc:wge},ZE="return exp(x);",YE=it({opSnippet:ZE,packedOpSnippet:ZE,cpuKernelImpl:ipe}),Ige={kernelName:Eo,backendName:"webgl",kernelFunc:YE};function hb(e){let{inputs:t,attrs:n,backend:r}=e,{dim:s}=n,{input:a}=t,o=a.shape.length,i=a.shape.slice(),l=s;return s<0&&(k.assert(-(o+1)<=s,()=>`Axis must be in the interval [${-(o+1)}, ${o}]`),l=o+s+1),i.splice(l,0,1),ve({inputs:{x:a},backend:r,attrs:{shape:i}})}var Sge={kernelName:Mc,backendName:"webgl",kernelFunc:hb},JE="return exp(x) - 1.0;",Tge=it({opSnippet:JE,packedOpSnippet:JE,cpuKernelImpl:lpe}),Nge={kernelName:ll,backendName:"webgl",kernelFunc:Tge},QE=class{constructor(e,t,n){this.variableNames=["real","imag"];let r=t[1];this.outputShape=t;let s=n?`2.0 * ${Math.PI}`:`-2.0 * ${Math.PI}`,a=n?`${r}.0`:"1.0",o;if(e==="real")o="return real * expR - imag * expI;";else if(e==="imag")o="return real * expI + imag * expR;";else throw new Error(`FFT component must be either "real" or "imag", got ${e}.`);this.userCode=` const float exponentMultiplier = ${s}; float unaryOpComplex(float real, float expR, float imag, float expI) { ${o} } float mulMatDFT(int batch, int index) { float indexRatio = float(index) / float(${r}); float exponentMultiplierTimesIndexRatio = exponentMultiplier * indexRatio; float result = 0.0; for (int i = 0; i < ${r}; i++) { // x = (-2|2 * PI / N) * index * i; float x = exponentMultiplierTimesIndexRatio * float(i); float expR = cos(x); float expI = sin(x); float real = getReal(batch, i); float imag = getImag(batch, i); result += unaryOpComplex(real, expR, imag, expI) / ${a}; } return result; } void main() { ivec2 coords = getOutputCoords(); setOutput(mulMatDFT(coords[0], coords[1])); } `}};function e9(e,t,n){let r=n.texData.get(e.dataId),s=k.sizeFromShape(e.shape),a=e.shape[e.shape.length-1],o=s/a,i=ve({inputs:{x:e},backend:n,attrs:{shape:[o,a]}}),l=i.shape,u=new QE("real",l,t),c=new QE("imag",l,t),d=[{dataId:r.complexTensorInfos.real.dataId,dtype:r.complexTensorInfos.real.dtype,shape:l},{dataId:r.complexTensorInfos.imag.dataId,dtype:r.complexTensorInfos.imag.dtype,shape:l}],h=n.runWebGLProgram(u,d,"float32"),p=n.runWebGLProgram(c,d,"float32"),f=eo({inputs:{real:h,imag:p},backend:n});n.disposeIntermediateTensorInfo(h),n.disposeIntermediateTensorInfo(p);let m=ve({inputs:{x:f},backend:n,attrs:{shape:e.shape}});return n.disposeIntermediateTensorInfo(i),n.disposeIntermediateTensorInfo(f),m}function Cge(e){let{inputs:t,backend:n}=e,{input:r}=t;return e9(r,!1,n)}var Ege={kernelName:Py,backendName:"webgl",kernelFunc:Cge},$ge=class{constructor(e,t){this.outputShape=[],this.variableNames=["x"],this.outputShape=e,this.userCode=` uniform float value; void main() { // Input can be obtained from uniform value. setOutput(value); } `}getCustomSetupFunc(e){return(t,n)=>{this.valueLoc==null&&(this.valueLoc=t.getUniformLocationNoThrow(n,"value")),t.gl.uniform1f(this.valueLoc,e)}}};function pb(e){let{backend:t,attrs:n}=e,{shape:r,value:s}=n,{dtype:a}=n;if(a=a||k.inferDtype(s),a==="string"){let o=k.getArrayFromDType(a,k.sizeFromShape(r));return o.fill(s),t.makeTensorInfo(r,a,o)}else{let o=new $ge(r,s),i=o.getCustomSetupFunc(s);return t.runWebGLProgram(o,[],a,i)}}var _ge={kernelName:Qp,backendName:"webgl",kernelFunc:pb},Rge=class{constructor(e){this.variableNames=["Image"],this.outputShape=[];let t=e[2];this.outputShape=e,this.userCode=` void main() { ivec4 coords = getOutputCoords(); int x = coords[2]; int coordX = ${t} - x; float outputValue; if(coordX >= 0 && coordX < ${t}) { outputValue = getImage(coords[0], coords[1], coordX, coords[3]); } else { outputValue = getImage(coords[0], coords[1], coords[2], coords[3]); } setOutput(outputValue); } `}},Dge={kernelName:Oc,backendName:"webgl",kernelFunc:({inputs:e,backend:t})=>{let{image:n}=e,r=t,s=new Rge(n.shape);return r.runWebGLProgram(s,[n],n.dtype)}},t9="return floor(x);",Fge=it({opSnippet:t9,packedOpSnippet:t9,cpuKernelImpl:upe}),Mge={kernelName:$o,backendName:"webgl",kernelFunc:Fge},Oge=` float s = sign(a) * sign(b); int ia = round(a); int ib = round(b); if (ib != 0) { // Windows (D3D) wants guaranteed non-zero int division at compile-time. return float(idiv(ia, ib, s)); } else { return NAN; } `,Pge=` ivec4 ia = round(a); ivec4 ib = round(b); bvec4 cond = notEqual(ib, ivec4(0)); ivec4 result = ivec4(0); vec4 s = sign(a) * sign(b); // Windows (D3D) wants guaranteed non-zero int division at compile-time. if (cond[0]) { result[0] = idiv(ia[0], ib[0], s[0]); } if (cond[1]) { result[1] = idiv(ia[1], ib[1], s[1]); } if (cond[2]) { result[2] = idiv(ia[2], ib[2], s[2]); } if (cond[3]) { result[3] = idiv(ia[3], ib[3], s[3]); } return vec4(result); `,zge=Nn({opSnippet:Oge,packedOpSnippet:Pge,dtype:"int32"}),Lge={kernelName:ul,backendName:"webgl",kernelFunc:zge},Bge=class{constructor(e){this.variableNames=["A"];let t=Wn(),[n,r]=e;this.outputShape=e,this.userCode=` void main() { ivec3 coords = getOutputCoords(); int texR = coords[0]; int texC = coords[1]; int depth = coords[2]; vec2 uv = (vec2(texC, texR) + halfCR) / vec2(${r}.0, ${n}.0); vec4 values = ${t.texture2D}(A, uv); float value; if (depth == 0) { value = values.r; } else if (depth == 1) { value = values.g; } else if (depth == 2) { value = values.b; } else if (depth == 3) { value = values.a; } setOutput(floor(value * 255.0 + 0.5)); } `}},Wge=class{constructor(e){this.variableNames=["A"],this.packedInputs=!1,this.packedOutput=!0;let t=Wn(),[n,r]=e;this.outputShape=e,this.userCode=` void main() { ivec3 coords = getOutputCoords(); int texR = coords[0]; int texC = coords[1]; int depth = coords[2]; vec4 result = vec4(0.); for(int row=0; row<=1; row++) { for(int col=0; col<=1; col++) { texC = coords[1] + row; depth = coords[2] + col; vec2 uv = (vec2(texC, texR) + halfCR) / vec2(${r}.0, ${n}.0); vec4 values = ${t.texture2D}(A, uv); float value; if (depth == 0) { value = values.r; } else if (depth == 1) { value = values.g; } else if (depth == 2) { value = values.b; } else if (depth == 3) { value = values.a; } result[row * 2 + col] = floor(value * 255.0 + 0.5); } } ${t.output} = result; } `}},Vge={kernelName:sA,backendName:"webgl",kernelFunc:Uge},Su;function Uge(e){let{inputs:t,backend:n,attrs:r}=e,{pixels:s}=t,{numChannels:a}=r,o=typeof HTMLVideoElement!="undefined"&&s instanceof HTMLVideoElement,i=typeof HTMLImageElement!="undefined"&&s instanceof HTMLImageElement,[l,u]=o?[s.videoWidth,s.videoHeight]:[s.width,s.height],c=[u,l],d=[u,l,a];(i||o)&&(Su==null&&(Su=document.createElement("canvas").getContext("2d")),Su.canvas.width=l,Su.canvas.height=u,Su.drawImage(s,0,0,l,u),s=Su.canvas);let h=n.makeTensorInfo(c,"int32");n.texData.get(h.dataId).usage=zr.PIXELS,n.gpgpu.uploadPixelDataToTexture(n.getTexture(h.dataId),s);let p=ae().getBool("WEBGL_PACK")?new Wge(d):new Bge(d),f=n.runWebGLProgram(p,[h],"int32");return n.disposeData(h.dataId),f}function Hge(e){let{inputs:t,backend:n,attrs:r}=e,{x:s,filter:a,bias:o,preluActivationWeights:i}=t,{strides:l,pad:u,dataFormat:c,dilations:d,dimRoundingMode:h,activation:p,leakyreluAlpha:f}=r,m=_.convertConv2DDataFormat(c),g=_.computeConv2DInfo(s.shape,a.shape,l,d,u,h,!1,m),y,A=[];if(g.filterHeight===1&&g.filterWidth===1&&g.dilationHeight===1&&g.dilationWidth===1&&g.strideHeight===1&&g.strideWidth===1&&(g.padInfo.type==="SAME"||g.padInfo.type==="VALID"))y=UE({x:s,filter:a,convInfo:g,backend:n,bias:o,activation:p,preluActivationWeights:i,leakyreluAlpha:f});else if(ae().getBool("WEBGL_CONV_IM2COL")&&s.shape[0]===1)y=HE({x:s,filter:a,convInfo:g,backend:n,bias:o,activation:p,preluActivationWeights:i,leakyreluAlpha:f});else{let b=o!=null,v=i!=null,w=p==="leakyrelu",I=p?Gm(p,!1):null,T=new VE(g,b,I,v,w),C=[s,a];if(o&&C.push(o),i&&C.push(i),w){let M=n.makeTensorInfo([],"float32",k.createScalarValue(f,"float32"));C.push(M),A.push(M)}y=n.runWebGLProgram(T,C,"float32")}let x=ve({inputs:{x:y},backend:n,attrs:{shape:g.outShape}});return A.push(y),A.forEach(b=>n.disposeIntermediateTensorInfo(b)),x}var Gge={kernelName:Bl,backendName:"webgl",kernelFunc:Hge};function jge(e){let{inputs:t,backend:n,attrs:r}=e,{x:s,filter:a,bias:o,preluActivationWeights:i}=t,{strides:l,pad:u,dilations:c,dimRoundingMode:d,activation:h,leakyreluAlpha:p}=r,f=[],m=c;m==null&&(m=[1,1]),k.assert(_.eitherStridesOrDilationsAreOne(l,m),()=>`Error in depthwiseConv2d: Either strides or dilations must be 1. Got strides ${l} and dilations '${m}'`);let g=_.computeConv2DInfo(s.shape,a.shape,l,m,u,d,!0),y=ae().getBool("WEBGL_PACK_DEPTHWISECONV")&&g.strideWidth<=2&&g.outChannels/g.inChannels==1,A=h?Gm(h,y):null,x=[s,a],b=o!=null,v=i!=null,w=h==="leakyrelu";if(b&&x.push(o),v&&x.push(i),w){let C=n.makeTensorInfo([],"float32",k.createScalarValue(p,"float32"));x.push(C),f.push(C)}let I;y?I=new XE(g,b,A,v,w):I=new KE(g,b,A,v,w);let T=n.runWebGLProgram(I,x,"float32");return f.forEach(C=>n.disposeIntermediateTensorInfo(C)),T}var qge={kernelName:Wl,backendName:"webgl",kernelFunc:jge},Kge=class{constructor(e,t,n){this.sliceDim=e,this.strides=t,this.variableNames=["x","indices"],this.outputShape=n;let r=It(t.length),s=It(n.length),a=this.sliceDim>1?"strides[j]":"strides";this.userCode=` ${r} strides = ${r}(${this.strides}); void main() { ${s} coords = getOutputCoords(); int flattenIndex = 0; for (int j = 0; j < ${this.sliceDim}; j++) { int index = round(getIndices(coords[0], j)); flattenIndex += index * ${a}; } setOutput(getX(flattenIndex, coords[1])); } `}};function Xge(e){let{inputs:t,backend:n}=e,{params:r,indices:s}=t,a=s.shape,o=a[a.length-1],i=k.sizeFromShape(r.shape),[l,u,c,d]=_.prepareAndValidate(r,s),h=ve({inputs:{x:s},backend:n,attrs:{shape:[u,o]}}),p=ve({inputs:{x:r},backend:n,attrs:{shape:[k.sizeFromShape(r.shape)/c,c]}});if(n.shouldExecuteOnCPU([r,s])||r.dtype==="string"){let y=n.readSync(s.dataId),A=n.bufferSync(r),x=cpe(y,A,r.dtype,u,o,c,d,r.shape,i);return n.makeTensorInfo(l,r.dtype,x.values)}let f=new Kge(o,d,[u,c]),m=n.runWebGLProgram(f,[p,h],p.dtype),g=ve({inputs:{x:m},backend:n,attrs:{shape:l}});return n.disposeIntermediateTensorInfo(h),n.disposeIntermediateTensorInfo(p),n.disposeIntermediateTensorInfo(m),g}var Zge={kernelName:zc,backendName:"webgl",kernelFunc:Xge},Yge=class{constructor(e,t){this.variableNames=["A","indices"],this.outputShape=t,this.rank=t.length;let n=It(this.rank),r=Jge(e,2);this.userCode=` void main() { ${n} resRC = getOutputCoords(); setOutput(getA(${r})); } `}};function Jge(e,t){let n=["resRC.x","resRC.y","resRC.z","resRC.w"],r=[];for(let s=0;sn.disposeIntermediateTensorInfo(v)),n.makeTensorInfo(u.outputShape,b.dtype,b.values)}let m=new Yge(h.shape,f),g=n.runWebGLProgram(m,[h,p],h.dtype);d.push(g);let y=ve({inputs:{x:g},backend:n,attrs:{shape:u.outputShape}});return d.forEach(A=>n.disposeIntermediateTensorInfo(A)),y}var e2e={kernelName:Pc,backendName:"webgl",kernelFunc:Qge},t2e="return float(a > b);",n2e=` return vec4(greaterThan(a, b)); `,r2e=Nn({opSnippet:t2e,packedOpSnippet:n2e,cpuKernelImpl:hpe,dtype:"bool"}),s2e={kernelName:dl,backendName:"webgl",kernelFunc:r2e},a2e="return float(a >= b);",o2e=` return vec4(greaterThanEqual(a, b)); `,i2e=Nn({opSnippet:a2e,packedOpSnippet:o2e,dtype:"bool",cpuKernelImpl:ppe}),l2e={kernelName:_o,backendName:"webgl",kernelFunc:i2e};function u2e(e){let{inputs:t,backend:n}=e,{input:r}=t;return e9(r,!0,n)}var c2e={kernelName:zy,backendName:"webgl",kernelFunc:u2e},d2e="return float(!isnan(x) && !isinf(x));",h2e=it({opSnippet:d2e,dtype:"bool"}),p2e={kernelName:Lc,backendName:"webgl",kernelFunc:h2e},f2e="return float(isinf(x));",m2e=it({opSnippet:f2e,dtype:"bool"}),g2e={kernelName:Bc,backendName:"webgl",kernelFunc:m2e},y2e="return float(isnan(x));",A2e=it({opSnippet:y2e,dtype:"bool"}),x2e={kernelName:Wc,backendName:"webgl",kernelFunc:A2e},b2e="return float(a < b);",v2e=` return vec4(lessThan(a, b)); `,w2e=Nn({opSnippet:b2e,packedOpSnippet:v2e,cpuKernelImpl:fpe,dtype:"bool"}),k2e={kernelName:fl,backendName:"webgl",kernelFunc:w2e},I2e="return float(a <= b);",S2e=` return vec4(lessThanEqual(a, b)); `,T2e=Nn({opSnippet:I2e,packedOpSnippet:S2e,cpuKernelImpl:mpe,dtype:"bool"}),N2e={kernelName:ml,backendName:"webgl",kernelFunc:T2e};function C2e(e){let{backend:t,attrs:n}=e,{start:r,stop:s,num:a}=n,o=gpe(r,s,a);return t.makeTensorInfo([o.length],"float32",o)}var E2e={kernelName:By,backendName:"webgl",kernelFunc:C2e},$2e=`if (x < 0.0) return NAN; return log(x);`,_2e=` vec4 result = log(x); vec4 isNaN = vec4(lessThan(x, vec4(0.0))); result.r = isNaN.r == 1.0 ? NAN : result.r; result.g = isNaN.g == 1.0 ? NAN : result.g; result.b = isNaN.b == 1.0 ? NAN : result.b; result.a = isNaN.a == 1.0 ? NAN : result.a; return result; `,R2e=it({opSnippet:$2e,packedOpSnippet:_2e,cpuKernelImpl:ype}),D2e={kernelName:Ro,backendName:"webgl",kernelFunc:R2e},F2e="return log(1.0 + x);",M2e=it({opSnippet:F2e}),O2e={kernelName:Vc,backendName:"webgl",kernelFunc:M2e},P2e="return float(a >= 1.0 && b >= 1.0);",z2e=` return vec4( vec4(greaterThanEqual(a, vec4(1.0))) * vec4(greaterThanEqual(b, vec4(1.0)))); `,L2e=Nn({opSnippet:P2e,packedOpSnippet:z2e,dtype:"bool"}),B2e={kernelName:Uc,backendName:"webgl",kernelFunc:L2e},W2e="return float(!(x >= 1.0));",V2e=it({opSnippet:W2e}),U2e={kernelName:ef,backendName:"webgl",kernelFunc:V2e},H2e="return float(a >= 1.0 || b >= 1.0);",G2e=` return min( vec4(greaterThanEqual(a, vec4(1.0))) + vec4(greaterThanEqual(b, vec4(1.0))), vec4(1.0)); `,j2e=Nn({opSnippet:H2e,packedOpSnippet:G2e,dtype:"bool"}),q2e={kernelName:tf,backendName:"webgl",kernelFunc:j2e},K2e=class{constructor(e,t,n,r,s){this.variableNames=["x"],this.outputShape=[];let a=t,o=e[3]-1;this.outputShape=e;let i,l=`float(${n}) + float(${r}) * sum`;s===.5?i=`inversesqrt(${l})`:s===1?i=`1.0/(${l})`:i=`exp(log(${l}) * float(-${s}));`,this.userCode=` void main() { ivec4 coords = getOutputCoords(); int b = coords[0]; int r = coords[1]; int c = coords[2]; int d = coords[3]; float x = getX(b, r, c, d); float sum = 0.0; for (int j = -${a}; j <= ${a}; j++) { int idx = d + j; if (idx >= 0 && idx <= ${o}) { float z = getX(b, r, c, idx); sum += z * z; } } float val = x * ${i}; setOutput(val); } `}},X2e=class{constructor(e,t,n,r,s){this.variableNames=["x"],this.outputShape=[],this.packedInputs=!0,this.packedOutput=!0;let a=t,o=e[3]-1;this.outputShape=e;let i,l=`float(${n}) + float(${r}) * sum`;s===.5?i=`inversesqrt(${l})`:s===1?i=`1.0/(${l})`:i=`exp(log(${l}) * float(-${s}));`,this.userCode=` void main() { ivec4 coords = getOutputCoords(); int b = coords.x; int r = coords.y; int c = coords.z; int d = coords.w; bool hasNextCol = d < ${this.outputShape[3]}; bool hasNextRow = c < ${this.outputShape[2]}; vec4 sum = vec4(0.); vec4 xFragAtOutputCoords = getX(b, r, c, d); vec4 xAtOutputCoords = vec4( getChannel(xFragAtOutputCoords, vec2(c, d)), hasNextCol ? getChannel(xFragAtOutputCoords, vec2(c, d + 1)) : 0.0, hasNextRow ? getChannel(xFragAtOutputCoords , vec2(c + 1, d)) : 0.0, (hasNextRow && hasNextCol) ? getChannel(xFragAtOutputCoords, vec2(c + 1, d + 1)) : 0.0 ); int firstChannel = d - ${a}; vec2 cache = vec2(0.); if(firstChannel >= 0){ vec4 firstChannelFrag = getX(b, r, c, firstChannel); cache.x = getChannel(firstChannelFrag, vec2(c, firstChannel)); if(hasNextRow){ cache.y = getChannel(firstChannelFrag, vec2(c + 1, firstChannel)); } } ivec2 depth = ivec2(d, d + 1); for (int j = - ${a}; j <= ${a}; j++) { ivec2 idx = depth + j; bvec2 aboveLowerBound = greaterThanEqual(idx, ivec2(0)); bvec2 belowUpperBound = lessThanEqual(idx, ivec2(${o})); bool depthInRange = aboveLowerBound.x && belowUpperBound.x; bool depthPlusOneInRange = aboveLowerBound.y && belowUpperBound.y; if(depthInRange || depthPlusOneInRange){ vec4 z = vec4(0.); vec4 xFragAtCurrentDepth; z.xz = cache.xy; if(depthPlusOneInRange && hasNextCol){ xFragAtCurrentDepth = idx.y != d ? getX(b, r, c, idx.y) : xFragAtOutputCoords; z.y = getChannel(xFragAtCurrentDepth, vec2(c, idx.y)); if(hasNextRow){ z.w = getChannel(xFragAtCurrentDepth, vec2(c + 1, idx.y)); } } cache.xy = z.yw; sum += z * z; } } vec4 result = xAtOutputCoords * ${i}; setOutput(result); } `}},Z2e=e=>{let{inputs:t,backend:n,attrs:r}=e,{x:s}=t,{depthRadius:a,bias:o,alpha:i,beta:l}=r,u=ae().getBool("WEBGL_PACK_NORMALIZATION")?new X2e(s.shape,a,o,i,l):new K2e(s.shape,a,o,i,l);return n.runWebGLProgram(u,[s],s.dtype)},Y2e={kernelName:nf,backendName:"webgl",kernelFunc:Z2e},J2e=class{constructor(e,t,n,r,s){this.variableNames=["inputImage","outputImage","dy"],this.outputShape=[],this.outputShape=e,this.depth=e[3],this.depthRadius=t,this.bias=n,this.alpha=r,this.beta=s,this.userCode=` void main() { ivec4 coords = getOutputCoords(); int b = coords[0]; int r = coords[1]; int c = coords[2]; float result = 0.0; for (int d = 0; d < ${this.depth}; ++d) { int depthBegin = int(max(0.0, float(d - ${t}))); int depthEnd = int(min(float(${this.depth}), float(d + ${t} + 1))); const int MIN_DEPTH_BEGIN = 0; const int MAX_DEPTH_END = ${this.depth}; float norm = 0.0; for (int k = MIN_DEPTH_BEGIN; k < MAX_DEPTH_END; ++k) { if (k < depthBegin){ continue; } else if (k >= depthBegin && k < depthEnd) { norm += getInputImage(b, r, c, k) * getInputImage(b, r, c, k); } else { break; } } norm = float(${r}) * norm + float(${n}); for(int k = MIN_DEPTH_BEGIN; k < MAX_DEPTH_END; ++k){ if (k < depthBegin){ continue; } else if (k >= depthBegin && k < depthEnd){ float dyi = -2.0 * float(${r}) * float(${s}) * getInputImage(b ,r ,c, k) * getOutputImage(b, r, c, d) / norm; if (k == d) { dyi += pow(norm, -1.0 * ${s}); } if (k == coords[3]) { dyi *= getDy(b, r, c, d); result += dyi; } } else { break; } } } setOutput(result); } `}},Q2e=e=>{let{inputs:t,backend:n,attrs:r}=e,{x:s,y:a,dy:o}=t,{depthRadius:i,bias:l,alpha:u,beta:c}=r,d=new J2e(s.shape,i,l,u,c);return n.runWebGLProgram(d,[s,a,o],s.dtype)},eye={kernelName:Wy,backendName:"webgl",kernelFunc:Q2e};function tye(e,t,n,r){let s=k.sizeFromShape(t),o=k.sizeFromShape(e.shape)/s,i=ve({inputs:{x:e},attrs:{shape:[o,s]},backend:r}),l=bi(i,e.dtype,"max",r),u=ve({inputs:{x:l},attrs:{shape:n},backend:r});return r.disposeIntermediateTensorInfo(i),r.disposeIntermediateTensorInfo(l),u}function n9(e){let{inputs:t,backend:n,attrs:r}=e,{x:s}=t,{reductionIndices:a,keepDims:o}=r,i=s.shape.length,l=k.parseAxisParam(a,s.shape),u=l,c=_.getAxesPermutation(u,i),d=c!=null,h=n.shouldExecuteOnCPU([s]),p=s;if(d){if(h){let x=n.texData.get(p.dataId).values,b=new Array(i);for(let I=0;I`Error in maxPool: Either strides or dilations must be 1. Got strides ${o} and dilations '${u}'`);let c=_.computePool2DInfo(s.shape,a,o,u,i,l);if(c.filterWidth===1&&c.filterHeight===1&&k.arraysEqual(c.inShape,c.outShape))return mr({inputs:{x:s},backend:n});let d=new ph(c,"max",!1);return n.runWebGLProgram(d,[s],s.dtype)}var lye={kernelName:yl,backendName:"webgl",kernelFunc:iye};function uye(e){let{inputs:t,backend:n,attrs:r}=e,{x:s}=t,{filterSize:a,strides:o,pad:i,dataFormat:l,dimRoundingMode:u}=r,c=[1,1,1],d=_.computePool3DInfo(s.shape,a,o,c,i,u,l),h=new ub(d,"max",!1);return n.runWebGLProgram(h,[s],s.dtype)}var cye={kernelName:rf,backendName:"webgl",kernelFunc:uye},dye=class{constructor(e){this.variableNames=["dy","maxPos"],this.outputShape=e.inShape;let t=e.strideHeight,n=e.strideWidth,r=e.dilationHeight,s=e.effectiveFilterHeight,a=e.effectiveFilterWidth,o=s-1-e.padInfo.top,i=a-1-e.padInfo.left,l=s*a-1;this.userCode=` const ivec2 pads = ivec2(${o}, ${i}); void main() { ivec4 coords = getOutputCoords(); int b = coords[0]; int d = coords[3]; ivec2 dyRCCorner = coords.yz - pads; int dyRCorner = dyRCCorner.x; int dyCCorner = dyRCCorner.y; // Convolve dy(?, ?, d) with pos mask(:, :, d) to get dx(xR, xC, d). // ? = to be determined. : = across all values in that axis. float dotProd = 0.0; for (int wR = 0; wR < ${s}; wR += ${r}) { float dyR = float(dyRCorner + wR) / ${t}.0; if (dyR < 0.0 || dyR >= ${e.outHeight}.0 || fract(dyR) > 0.0) { continue; } int idyR = int(dyR); for (int wC = 0; wC < ${a}; wC++) { float dyC = float(dyCCorner + wC) / ${n}.0; if (dyC < 0.0 || dyC >= ${e.outWidth}.0 || fract(dyC) > 0.0) { continue; } int idyC = int(dyC); float dyValue = getDy(b, idyR, idyC, d); int maxPosValue = ${l} - int(getMaxPos(b, idyR, idyC, d)); // Get the current value, check it against the value from the // position matrix. int curPosValue = wR * ${a} + wC; float mask = float(maxPosValue == curPosValue ? 1.0 : 0.0); dotProd += dyValue * mask; } } setOutput(dotProd); } `}},hye=class{constructor(e){this.variableNames=["dy","maxPos"],this.outputShape=e.inShape;let t=e.strideDepth,n=e.strideHeight,r=e.strideWidth,s=e.dilationDepth,a=e.dilationHeight,o=e.dilationWidth,i=e.effectiveFilterDepth,l=e.effectiveFilterHeight,u=e.effectiveFilterWidth,c=i-1-e.padInfo.front,d=l-1-e.padInfo.top,h=u-1-e.padInfo.left,p=i*l*u-1;this.userCode=` const ivec3 pads = ivec3(${c}, ${d}, ${h}); void main() { ivec5 coords = getOutputCoords(); int batch = coords.x; int ch = coords.u; ivec3 dyCorner = ivec3(coords.y, coords.z, coords.w) - pads; int dyDCorner = dyCorner.x; int dyRCorner = dyCorner.y; int dyCCorner = dyCorner.z; // Convolve dy(?, ?, ?, ch) with pos mask(:, :, :, d) to get // dx(xD, xR, xC, ch). // ? = to be determined. : = across all values in that axis. float dotProd = 0.0; for (int wD = 0; wD < ${i}; wD += ${s}) { float dyD = float(dyDCorner + wD) / ${t}.0; if (dyD < 0.0 || dyD >= ${e.outDepth}.0 || fract(dyD) > 0.0) { continue; } int idyD = int(dyD); for (int wR = 0; wR < ${l}; wR += ${a}) { float dyR = float(dyRCorner + wR) / ${n}.0; if (dyR < 0.0 || dyR >= ${e.outHeight}.0 || fract(dyR) > 0.0) { continue; } int idyR = int(dyR); for (int wC = 0; wC < ${u}; wC += ${o}) { float dyC = float(dyCCorner + wC) / ${r}.0; if (dyC < 0.0 || dyC >= ${e.outWidth}.0 || fract(dyC) > 0.0) { continue; } int idyC = int(dyC); float dyValue = getDy(batch, idyD, idyR, idyC, ch); int maxPosValue = ${p} - int(getMaxPos(batch, idyD, idyR, idyC, ch)); // Get the current value, check it against the value from the // position matrix. int curPosValue = wD * ${l} * ${u} + wR * ${u} + wC; float mask = float(maxPosValue == curPosValue ? 1.0 : 0.0); dotProd += dyValue * mask; } } } setOutput(dotProd); } `}};function pye(e){let{inputs:t,backend:n,attrs:r}=e,{dy:s,input:a}=t,o=a,{filterSize:i,strides:l,pad:u,dimRoundingMode:c}=r,d=[1,1,1],h=_.computePool3DInfo(o.shape,i,l,d,u,c),p=new ub(h,"max",!0),f=n.runWebGLProgram(p,[o],o.dtype),m=new hye(h),g=n.runWebGLProgram(m,[s,f],o.dtype);return n.disposeIntermediateTensorInfo(f),g}var fye={kernelName:Uy,backendName:"webgl",kernelFunc:pye};function mye(e){let{inputs:t,backend:n,attrs:r}=e,{dy:s,input:a,output:o}=t,i=a;mu([a,o],"maxPoolGrad");let{filterSize:l,strides:u,pad:c,dimRoundingMode:d}=r,h=_.computePool2DInfo(i.shape,l,u,1,c,d),p=!0,f=new ph(h,"max",p),m=n.runWebGLProgram(f,[i],i.dtype),g=new dye(h),y=n.runWebGLProgram(g,[s,m],i.dtype);return n.disposeIntermediateTensorInfo(m),y}var gye={kernelName:Vy,backendName:"webgl",kernelFunc:mye};function yye(e,t,n,r){let s=new ph(n,"max",!1),a=r.runWebGLProgram(s,[e],"float32");s=new ph(n,"max",!0,!0,t);let o=r.runWebGLProgram(s,[e],"float32");return[a,o]}var Aye={kernelName:Hy,backendName:"webgl",kernelFunc:({inputs:e,attrs:t,backend:n})=>{let{x:r}=e,{filterSize:s,strides:a,pad:o,includeBatchInIndex:i}=t,l=n;k.assert(r.shape.length===4,()=>`Error in maxPool: input must be rank 4 but got rank ${r.shape.length}.`);let u=[1,1];k.assert(_.eitherStridesOrDilationsAreOne(a,u),()=>`Error in maxPool: Either strides or dilations must be 1. Got strides ${a} and dilations '${u}'`);let c=_.computePool2DInfo(r.shape,s,a,u,o),[d,h]=yye(r,i,c,l);return[d,h]}};function xye(e,t,n,r){let s=k.sizeFromShape(t),o=k.sizeFromShape(e.shape)/s,i=ve({inputs:{x:e},attrs:{shape:[o,s]},backend:r}),l=bi(i,"float32","mean",r),u=ve({inputs:{x:l},attrs:{shape:n},backend:r});return r.disposeIntermediateTensorInfo(i),r.disposeIntermediateTensorInfo(l),u}var bye={kernelName:Al,backendName:"webgl",kernelFunc:({inputs:e,attrs:t,backend:n})=>{let{x:r}=e,{keepDims:s,axis:a}=t,o=n,i=r.shape.length,l=k.parseAxisParam(a,r.shape),u=l,c=_.getAxesPermutation(u,i),d=c!=null,h=o.shouldExecuteOnCPU([r]),p=[],f=r;if(d){if(h){let b=o.texData.get(f.dataId).values,v=new Array(i);for(let T=0;Tu[0]+e[c]+u[1]);let r=e.length,s=It(r),a=t.map(u=>u[0]).join(","),o=t.map((u,c)=>u[0]+e[c]).join(","),i=["coords[0]","coords[1]","coords[2]","coords[3]"].slice(0,r),l=n==="reflect"?0:1;if(r===1){this.userCode=` int start = ${a}; int end = ${o}; void main() { int outC = getOutputCoords(); if (outC < start) { outC = start * 2 - outC - ${l}; } else if(outC >= end) { outC = (end - 1) * 2 - outC + ${l}; } setOutput(getX(outC - start)); } `;return}this.userCode=` ${s} start = ${s}(${a}); ${s} end = ${s}(${o}); void main() { ${s} outC = getOutputCoords(); for (int i = 0; i < ${r}; i++) { if (outC[i] < start[i]) { outC[i] = start[i] * 2 - outC[i] - ${l}; } else if(outC[i] >= end[i]) { outC[i] = (end[i] - 1) * 2 - outC[i] + ${l}; } } ${s} coords = outC - start; setOutput(getX(${i})); } `}},Cye=class{constructor(e,t,n){this.variableNames=["x"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t.map((p,f)=>p[0]+e[f]+p[1]);let r=e.length,s=It(r),a=t.map(p=>p[0]).join(","),o=t.map((p,f)=>p[0]+e[f]).join(","),i=Vn("rc",r),l=Vn("source",r),u=`${i[r-1]} < ${this.outputShape[r-1]}`,c=r===1?"source":`vec2(${l.slice(-2).join()})`,d=n==="reflect"?0:1,h="";if(r===1){let p=` ${s} source = rc; if (source < start) { source = start * 2 - source - ${d}; } else if (source >= end) { source = (end - 1) * 2 - source + ${d}; } source -= start; `;h=` ${s} rc = outputLoc; ${p} result[0] = getChannel(getX(${l.join()}), ${c}); ${i[r-1]} += 1; if(${u}) { ${p} result[1] = getChannel(getX(${l.join()}), ${c}); } `}else{let p=` ${s} source = rc; ${s} lt = ${s}(lessThan(source, start)); ${s} gte = ${s}(greaterThanEqual(source, end)); ${s} orig = 1 - (lt + gte); source = orig * source + lt * (start * 2 - source - ${d}) + gte * ((end - 1) * 2 - source + ${d}); source -= start; `;h=` ${s} rc = outputLoc; ${p} result[0] = getChannel(getX(${l.join()}), ${c}); ${i[r-1]} += 1; if(${u}) { ${p} result[1] = getChannel(getX(${l.join()}), ${c}); } rc = outputLoc; ${i[r-2]} += 1; if(${i[r-2]} < ${this.outputShape[r-2]}) { ${p} result[2] = getChannel(getX(${l.join()}), ${c}); ${i[r-1]} += 1; if(${u}) { ${p} result[3] = getChannel(getX(${l.join()}), ${c}); } } `}this.userCode=` const ${s} start = ${s}(${a}); const ${s} end = ${s}(${o}); void main() { ${s} outputLoc = getOutputCoords(); vec4 result = vec4(0.); ${h} setOutput(result); } `}},Eye=({inputs:e,backend:t,attrs:n})=>{let{x:r}=e,{paddings:s,mode:a}=n,o=ae().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new Cye(r.shape,s,a):new Nye(r.shape,s,a);return t.runWebGLProgram(o,[r],r.dtype)},$ye={kernelName:bl,backendName:"webgl",kernelFunc:Eye},_ye=`if (b == 0.0) return NAN; return mod(a, b);`,Rye=` vec4 result = mod(a, b); vec4 isNaN = vec4(equal(b, vec4(0.0))); `+Hm+` return result; `,Dye=Nn({opSnippet:_ye,packedOpSnippet:Rye}),Fye={kernelName:Hc,backendName:"webgl",kernelFunc:Dye},Mye=class{constructor(e,t,n){this.variableNames=["probs"],this.outputShape=[e,n],this.userCode=` uniform float seed; void main() { ivec2 coords = getOutputCoords(); int batch = coords[0]; float r = random(seed); float cdf = 0.0; for (int i = 0; i < ${t-1}; i++) { cdf += getProbs(batch, i); if (r < cdf) { setOutput(float(i)); return; } } // If no other event happened, last event happened. setOutput(float(${t-1})); } `}getCustomSetupFunc(e){return(t,n)=>{this.seedLoc==null&&(this.seedLoc=t.getUniformLocation(n,"seed")),t.gl.uniform1f(this.seedLoc,e)}}},Oye=` if (a == b) { return 1.0; }; return a / b;`,Pye=` // vec4 one = vec4(equal(a, b)); // return one + (vec4(1.0) - one) * a / b; vec4 result = a / b; if(a.x == b.x) { result.x = 1.; } if(a.y == b.y) { result.y = 1.; } if(a.z == b.z) { result.z = 1.; } if(a.w == b.w) { result.w = 1.; } return result; `,r9=Nn({opSnippet:Oye,packedOpSnippet:Pye,checkOutOfBounds:!0}),zye={kernelName:ol,backendName:"webgl",kernelFunc:r9},s9="return a - b;",a9=Nn({opSnippet:s9,packedOpSnippet:s9,supportsComplex:!0,cpuKernelImpl:Fpe}),Lye={kernelName:zo,backendName:"webgl",kernelFunc:a9};function o9(e){let{inputs:t,backend:n,attrs:r}=e,{logits:s}=t,{dim:a}=r,o=k.parseAxisParam([a],s.shape),i=n9({inputs:{x:s},backend:n,attrs:{reductionIndices:o,keepDims:!1}}),l=_.expandShapeToKeepDim(i.shape,o),u=ve({inputs:{x:i},backend:n,attrs:{shape:l}}),c=a9({inputs:{a:s,b:u},backend:n}),d=YE({inputs:{x:c},backend:n}),h=qm({inputs:{x:d},backend:n,attrs:{axis:o,keepDims:!1}}),p=ve({inputs:{x:h},backend:n,attrs:{shape:l}}),f=r9({inputs:{a:d,b:p},backend:n});return n.disposeIntermediateTensorInfo(i),n.disposeIntermediateTensorInfo(u),n.disposeIntermediateTensorInfo(c),n.disposeIntermediateTensorInfo(d),n.disposeIntermediateTensorInfo(h),n.disposeIntermediateTensorInfo(p),f}var Bye={kernelName:Ml,backendName:"webgl",kernelFunc:o9};function Wye(e){let{inputs:t,backend:n,attrs:r}=e,{logits:s}=t,{numSamples:a,seed:o,normalized:i}=r,l=i?s:o9({inputs:{logits:s},backend:n,attrs:{dim:s.shape.length-1}}),u=l.shape[0],c=l.shape[1],d=new Mye(u,c,a),h=d.getCustomSetupFunc(o),p=n.runWebGLProgram(d,[l],"int32",h);return i||n.disposeIntermediateTensorInfo(l),p}var Vye={kernelName:Gy,backendName:"webgl",kernelFunc:Wye},i9="return -x;";function Uye(e){let{inputs:t,backend:n}=e,{x:r}=t;if(n.shouldExecuteOnCPU([r])){let a=n.texData.get(r.dataId),[o,i]=wpe(a.values,r.shape,r.dtype);return n.makeTensorInfo(i,r.dtype,o)}let s;return ae().getBool("WEBGL_PACK_UNARY_OPERATIONS")?s=new wu(r.shape,i9):s=new Qa(r.shape,i9),n.runWebGLProgram(s,[r],r.dtype)}var Hye={kernelName:Gc,backendName:"webgl",kernelFunc:Uye},Gye=ca.nonMaxSuppressionV3Impl;function jye(e){_.warn("tf.nonMaxSuppression() in webgl locks the UI thread. Call tf.nonMaxSuppressionAsync() instead");let{inputs:t,backend:n,attrs:r}=e,{boxes:s,scores:a}=t,{maxOutputSize:o,iouThreshold:i,scoreThreshold:l}=r,u=n.readSync(s.dataId),c=n.readSync(a.dataId),{selectedIndices:d}=Gye(u,c,o,i,l);return n.makeTensorInfo([d.length],"int32",new Int32Array(d))}var qye={kernelName:jc,backendName:"webgl",kernelFunc:jye},Kye=ca.nonMaxSuppressionV4Impl;function Xye(e){_.warn("tf.nonMaxSuppression() in webgl locks the UI thread. Call tf.nonMaxSuppressionAsync() instead");let{inputs:t,backend:n,attrs:r}=e,{boxes:s,scores:a}=t,{maxOutputSize:o,iouThreshold:i,scoreThreshold:l,padToMaxOutputSize:u}=r,c=n.readSync(s.dataId),d=n.readSync(a.dataId),{selectedIndices:h,validOutputs:p}=Kye(c,d,o,i,l,u);return[n.makeTensorInfo([h.length],"int32",new Int32Array(h)),n.makeTensorInfo([],"int32",new Int32Array([p]))]}var Zye={kernelName:qc,backendName:"webgl",kernelFunc:Xye},Yye=ca.nonMaxSuppressionV5Impl;function Jye(e){_.warn("tf.nonMaxSuppression() in webgl locks the UI thread. Call tf.nonMaxSuppressionAsync() instead");let{inputs:t,backend:n,attrs:r}=e,{boxes:s,scores:a}=t,{maxOutputSize:o,iouThreshold:i,scoreThreshold:l,softNmsSigma:u}=r,c=n.readSync(s.dataId),d=n.readSync(a.dataId),h=o,p=i,f=l,m=u,{selectedIndices:g,selectedScores:y}=Yye(c,d,h,p,f,m);return[n.makeTensorInfo([g.length],"int32",new Int32Array(g)),n.makeTensorInfo([y.length],"float32",new Float32Array(y))]}var Qye={kernelName:Kc,backendName:"webgl",kernelFunc:Jye},eAe=class{constructor(e,t,n,r){this.variableNames=["indices"],this.outputShape=[e,t],this.userCode=` void main() { ivec2 coords = getOutputCoords(); int index = round(getIndices(coords.x)); setOutput(mix(float(${r}), float(${n}), float(index == coords.y))); } `}},tAe=e=>{let{inputs:t,backend:n,attrs:r}=e,{indices:s}=t,{depth:a,onValue:o,offValue:i}=r,l=k.sizeFromShape(s.shape),u=new eAe(l,a,o,i),c=ve({inputs:{x:s},backend:n,attrs:{shape:[l]}}),d=n.runWebGLProgram(u,[c],s.dtype);n.disposeIntermediateTensorInfo(c);let h=[...s.shape,a],p=ve({inputs:{x:d},backend:n,attrs:{shape:h}});return n.disposeIntermediateTensorInfo(d),p},nAe={kernelName:wl,backendName:"webgl",kernelFunc:tAe};function Jm(e){let{inputs:t,backend:n}=e,{x:r}=t;if(r.dtype==="complex64"){let s=mh({inputs:{input:r},backend:n}),a=Jm({inputs:{x:s},backend:n}),o=Ym({inputs:{input:r},backend:n}),i=Jm({inputs:{x:o},backend:n}),l=eo({inputs:{real:a,imag:i},backend:n});return n.disposeIntermediateTensorInfo(s),n.disposeIntermediateTensorInfo(a),n.disposeIntermediateTensorInfo(o),n.disposeIntermediateTensorInfo(i),l}else return pb({attrs:{shape:r.shape,dtype:r.dtype,value:r.dtype==="string"?"":0},backend:n})}var rAe={kernelName:hd,backendName:"webgl",kernelFunc:Jm};function l9(e){let{inputs:t,backend:n}=e,{x:r}=t;if(r.dtype==="string")throw new Error("onesLike is not supported under string dtype");if(r.dtype==="complex64"){let s=mh({inputs:{input:r},backend:n}),a=l9({inputs:{x:s},backend:n}),o=Ym({inputs:{input:r},backend:n}),i=Jm({inputs:{x:o},backend:n}),l=eo({inputs:{real:a,imag:i},backend:n});return n.disposeIntermediateTensorInfo(s),n.disposeIntermediateTensorInfo(a),n.disposeIntermediateTensorInfo(o),n.disposeIntermediateTensorInfo(i),l}else return pb({attrs:{shape:r.shape,dtype:r.dtype,value:1},backend:n})}var sAe={kernelName:Xc,backendName:"webgl",kernelFunc:l9};function aAe(e){let{inputs:t,backend:n,attrs:r}=e,{axis:s}=r;if(t.length===1)return hb({inputs:{input:t[0]},backend:n,attrs:{dim:s}});let a=t[0].shape,o=t[0].dtype;t.forEach(c=>{k.assertShapesMatch(a,c.shape,"All tensors passed to stack must have matching shapes"),k.assert(o===c.dtype,()=>"All tensors passed to stack must have matching dtypes")});let i=[],l=t.map(c=>{let d=hb({inputs:{input:c},backend:n,attrs:{dim:s}});return i.push(d),d}),u=WE({inputs:l,backend:n,attrs:{axis:s}});return i.forEach(c=>n.disposeIntermediateTensorInfo(c)),u}var oAe={kernelName:Zc,backendName:"webgl",kernelFunc:aAe},iAe=class{constructor(e,t,n){this.variableNames=["x"],this.outputShape=t.map((l,u)=>l[0]+e[u]+l[1]);let r=e.length,s=It(r),a=t.map(l=>l[0]).join(","),o=t.map((l,u)=>l[0]+e[u]).join(","),i=["coords[0]","coords[1]","coords[2]","coords[3]"].slice(0,r);if(r===1){this.userCode=` int start = ${a}; int end = ${o}; uniform float value; void main() { int outC = getOutputCoords(); if (outC < start || outC >= end) { setOutput(value); } else { setOutput(getX(outC - start)); } } `;return}this.userCode=` ${s} start = ${s}(${a}); ${s} end = ${s}(${o}); uniform float value; void main() { ${s} outC = getOutputCoords(); if (any(lessThan(outC, start)) || any(greaterThanEqual(outC, end))) { setOutput(value); } else { ${s} coords = outC - start; setOutput(getX(${i})); } } `}getCustomSetupFunc(e){return(t,n)=>{this.valueLoc==null&&(this.valueLoc=t.getUniformLocationNoThrow(n,"value")),t.gl.uniform1f(this.valueLoc,e)}}},lAe=class{constructor(e,t,n){this.variableNames=["x"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t.map((f,m)=>f[0]+e[m]+f[1]);let r=e.length,s=It(r),a=t.map(f=>f[0]).join(","),o=t.map((f,m)=>f[0]+e[m]).join(","),i=Vn("rc",r),l=Vn("source",r),u=`${i[r-1]} < ${this.outputShape[r-1]}`,c=r===1?"source":`vec2(${l.slice(-2).join()})`,d=[`${s} rc = outputLoc;`,`${i[r-1]} += 1; if(${u}) { `,r===1?"":`} rc = outputLoc; ${i[r-2]} += 1; if(${i[r-2]} < ${this.outputShape[r-2]}) {`,r===1?"":` ${i[r-1]} += 1; if(${u}) {`],h=r===1?"rc < start || rc >= end":"any(lessThan(rc, start)) || any(greaterThanEqual(rc, end))",p="";for(let f=0,m=r===1?2:4;f{this.valueLoc==null&&(this.valueLoc=t.getUniformLocationNoThrow(n,"value")),t.gl.uniform1f(this.valueLoc,e)}}},u9=e=>{let{inputs:t,backend:n,attrs:r}=e,{x:s}=t,{paddings:a,constantValue:o}=r,i=ae().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new lAe(s.shape,a,o):new iAe(s.shape,a,o),l=i.getCustomSetupFunc(o);return n.runWebGLProgram(i,[s],s.dtype,l)},uAe={kernelName:kl,backendName:"webgl",kernelFunc:u9},cAe=` if(a < 0.0 && floor(b) < b){ return NAN; } if (b == 0.0) { return 1.0; } return (round(mod(b, 2.0)) != 1) ? pow(abs(a), b) : sign(a) * pow(abs(a), b); `,dAe=` // isModRound1 has 1 for components with round(mod(b, 2.0)) == 1, 0 otherwise. vec4 isModRound1 = vec4(equal(round(mod(b, 2.0)), ivec4(1))); vec4 multiplier = sign(a) * isModRound1 + (vec4(1.0) - isModRound1); vec4 result = multiplier * pow(abs(a), b); // Ensure that a^0 = 1, including 0^0 = 1 as this correspond to TF and JS bvec4 isExpZero = equal(b, vec4(0.0)); result.r = isExpZero.r ? 1.0 : result.r; result.g = isExpZero.g ? 1.0 : result.g; result.b = isExpZero.b ? 1.0 : result.b; result.a = isExpZero.a ? 1.0 : result.a; vec4 isNaN = vec4(lessThan(a, vec4(0.0))) * vec4(lessThan(floor(b), b)); `+Hm+` return result; `,hAe=Nn({opSnippet:cAe,packedOpSnippet:dAe}),pAe={kernelName:Il,backendName:"webgl",kernelFunc:hAe};function fAe(e){let{inputs:t,backend:n,attrs:r}=e,{x:s}=t,{axis:a,keepDims:o}=r,i=s.shape.length,l=[],u=k.parseAxisParam(a,s.shape),c=u,d=_.getAxesPermutation(c,i),h=s;d!=null&&(h=Un({inputs:{x:s},backend:n,attrs:{perm:d}}),c=_.getInnerMostAxes(c.length,i),l.push(h)),_.assertAxesAreInnerMostDims("prod",c,i);let p;if(n.shouldExecuteOnCPU([h])){let f=n.texData.get(h.dataId).values,{outVals:m,outShape:g,outDtype:y}=Ipe(h.shape,h.dtype,f,c);p=n.makeTensorInfo(g,y,m)}else{let[f,m]=_.computeOutAndReduceShapes(h.shape,c),g=k.sizeFromShape(m),y=ve({inputs:{x:h},backend:n,attrs:{shape:[-1,g]}}),A=fA(s.dtype),x=bi(y,A,"prod",n);p=ve({inputs:{x},backend:n,attrs:{shape:f}}),l.push(y),l.push(x)}if(o){l.push(p);let f=_.expandShapeToKeepDim(p.shape,u);p=ve({inputs:{x:p},backend:n,attrs:{shape:f}})}return l.forEach(f=>n.disposeIntermediateTensorInfo(f)),p}var mAe={kernelName:Yc,backendName:"webgl",kernelFunc:fAe},c9=e=>{let{backend:t,attrs:n}=e,{start:r,stop:s,step:a,dtype:o}=n,i=Spe(r,s,a,o);return t.makeTensorInfo([i.length],o,i)},gAe={kernelName:sf,backendName:"webgl",kernelFunc:c9},yAe="return 1.0 / x;",AAe=it({opSnippet:yAe}),xAe={kernelName:Jc,backendName:"webgl",kernelFunc:AAe},bAe=ys+` return (x < 0.0) ? 0.0 : x; `,vAe=` vec4 result = x * vec4(greaterThanEqual(x, vec4(0.0))); bvec4 isNaN = isnan(x); result.r = isNaN.r ? x.r : result.r; result.g = isNaN.g ? x.g : result.g; result.b = isNaN.b ? x.b : result.b; result.a = isNaN.a ? x.a : result.a; return result; `,wAe=it({opSnippet:bAe,packedOpSnippet:vAe}),kAe={kernelName:Tl,backendName:"webgl",kernelFunc:wAe},IAe=ys+` return (x < 0.0) ? 0.0 : min(6.0, x); `,SAe=` vec4 result = min(x, vec4(6.)) * vec4(greaterThanEqual(x, vec4(0.0))); bvec4 isNaN = isnan(x); result.r = isNaN.r ? x.r : result.r; result.g = isNaN.g ? x.g : result.g; result.b = isNaN.b ? x.b : result.b; result.a = isNaN.a ? x.a : result.a; return result; `,TAe=it({opSnippet:IAe,packedOpSnippet:SAe}),NAe={kernelName:Cl,backendName:"webgl",kernelFunc:TAe},CAe=class{constructor(e,t,n,r,s){this.variableNames=["A"],this.outputShape=[];let[a,o,i,l]=e;this.outputShape=[a,t,n,l];let u=[r&&t>1?o-1:o,r&&n>1?i-1:i],c=[r&&t>1?t-1:t,r&&n>1?n-1:n],d;s?d="(vec2(yRC) + vec2(0.5)) * effectiveInputOverOutputRatioRC - vec2(0.5)":d="vec2(yRC) * effectiveInputOverOutputRatioRC",this.userCode=` const vec2 effectiveInputOverOutputRatioRC = vec2( ${u[0]/c[0]}, ${u[1]/c[1]}); const vec2 inputShapeRC = vec2(${o}.0, ${i}.0); void main() { ivec4 coords = getOutputCoords(); int b = coords[0]; int d = coords[3]; ivec2 yRC = coords.yz; // Fractional source index. vec2 sourceFracIndexRC = ${d}; // Compute the four integer indices. ivec2 sourceFloorRC = ivec2(max(sourceFracIndexRC, vec2(0.0))); ivec2 sourceCeilRC = ivec2( min(inputShapeRC - 1.0, ceil(sourceFracIndexRC))); float topLeft = getA(b, sourceFloorRC.x, sourceFloorRC.y, d); float bottomLeft = getA(b, sourceCeilRC.x, sourceFloorRC.y, d); float topRight = getA(b, sourceFloorRC.x, sourceCeilRC.y, d); float bottomRight = getA(b, sourceCeilRC.x, sourceCeilRC.y, d); vec2 fracRC = sourceFracIndexRC - vec2(sourceFloorRC); float top = topLeft + (topRight - topLeft) * fracRC.y; float bottom = bottomLeft + (bottomRight - bottomLeft) * fracRC.y; float newValue = top + (bottom - top) * fracRC.x; setOutput(newValue); } `}},EAe=class{constructor(e,t,n,r,s){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=[];let[a,o,i,l]=e;this.outputShape=[a,t,n,l];let u=[r&&t>1?o-1:o,r&&n>1?i-1:i],c=[r&&t>1?t-1:t,r&&n>1?n-1:n],d;s?d="(vec3(yRC) + vec3(0.5)) * effectiveInputOverOutputRatioRC - vec3(0.5)":d="vec3(yRC) * effectiveInputOverOutputRatioRC",this.userCode=` const vec3 effectiveInputOverOutputRatioRC = vec3( ${u[0]/c[0]}, ${u[1]/c[1]}, ${u[1]/c[1]}); const vec3 inputShapeRC = vec3(${o}.0, ${i}.0, ${i}.0); float getAValue(int b, int r, int c, int d) { return getChannel(getA(b, r, c, d), vec2(c, d)); } void main() { ivec4 coords = getOutputCoords(); int b = coords[0]; int d = coords[3]; // Calculate values for next column in yRC.z. ivec3 yRC = coords.yzz + ivec3(0, 0, 1); // Fractional source index. vec3 sourceFracIndexRC = ${d}; // Compute the four integer indices. ivec3 sourceFloorRC = ivec3(max(sourceFracIndexRC, vec3(0.0))); ivec3 sourceCeilRC = ivec3( min(inputShapeRC - 1.0, ceil(sourceFracIndexRC))); // Should we calculate next column and row elements in 2x2 packed cell. bool hasNextCol = d < ${l-1}; bool hasNextRow = coords.z < ${n-1}; // In parallel, construct four corners for all four components in // packed 2x2 cell. vec4 topLeft = vec4( getAValue(b, sourceFloorRC.x, sourceFloorRC.y, d), hasNextCol ? getAValue(b, sourceFloorRC.x, sourceFloorRC.y, d + 1) : 0.0, hasNextRow ? getAValue(b, sourceFloorRC.x, sourceFloorRC.z, d) : 0.0, (hasNextRow && hasNextCol) ? getAValue(b, sourceFloorRC.x, sourceFloorRC.z, d + 1) : 0.0); vec4 bottomLeft = vec4( getAValue(b, sourceCeilRC.x, sourceFloorRC.y, d), hasNextCol ? getAValue(b, sourceCeilRC.x, sourceFloorRC.y, d + 1) : 0.0, hasNextRow ? getAValue(b, sourceCeilRC.x, sourceFloorRC.z, d) : 0.0, (hasNextRow && hasNextCol) ? getAValue(b, sourceCeilRC.x, sourceFloorRC.z, d + 1) : 0.0); vec4 topRight = vec4( getAValue(b, sourceFloorRC.x, sourceCeilRC.y, d), hasNextCol ? getAValue(b, sourceFloorRC.x, sourceCeilRC.y, d + 1) : 0.0, hasNextRow ? getAValue(b, sourceFloorRC.x, sourceCeilRC.z, d) : 0.0, (hasNextRow && hasNextCol) ? getAValue(b, sourceFloorRC.x, sourceCeilRC.z, d + 1) : 0.0); vec4 bottomRight = vec4( getAValue(b, sourceCeilRC.x, sourceCeilRC.y, d), hasNextCol ? getAValue(b, sourceCeilRC.x, sourceCeilRC.y, d + 1) : 0.0, hasNextRow ? getAValue(b, sourceCeilRC.x, sourceCeilRC.z, d) : 0.0, (hasNextRow && hasNextCol) ? getAValue(b, sourceCeilRC.x, sourceCeilRC.z, d + 1) : 0.0); vec3 fracRC = sourceFracIndexRC - vec3(sourceFloorRC); vec4 top = mix(topLeft, topRight, fracRC.yyzz); vec4 bottom = mix(bottomLeft, bottomRight, fracRC.yyzz); vec4 newValue = mix(top, bottom, fracRC.x); setOutput(newValue); } `}};function $Ae(e){let{inputs:t,backend:n,attrs:r}=e,{images:s}=t,{alignCorners:a,halfPixelCenters:o,size:i}=r,[l,u]=i,c=ae().getBool("WEBGL_PACK_IMAGE_OPERATIONS")?new EAe(s.shape,l,u,a,o):new CAe(s.shape,l,u,a,o);return n.runWebGLProgram(c,[s],"float32")}var _Ae={kernelName:Nl,backendName:"webgl",kernelFunc:$Ae},RAe=class{constructor(e,t,n){this.variableNames=["dy"],this.outputShape=[],this.outputShape=t;let[,r,s]=t,[,a,o]=e,i=[n&&a>1?r-1:r,n&&o>1?s-1:s],l=[n&&a>1?a-1:a,n&&o>1?o-1:o],u=i[0]/l[0],c=i[1]/l[1],d=1/u,h=1/c,p=Math.ceil(d)*2+2,f=Math.ceil(h)*2+2;this.userCode=` void main() { ivec4 coords = getOutputCoords(); int b = coords[0]; int d = coords[3]; int r = coords[1]; int c = coords[2]; float accumulator = 0.0; const float heightScale = float(${u}); const float widthScale = float(${c}); const float invHeightScale = float(${d}); const float invWidthScale = float(${h}); const int winHeight = int(${p}); const int winWidth = int(${f}); // Compute bounds for where in dy we will look float startRLerp = floor(float(r) * invHeightScale); int startDyR = int(startRLerp - float(winHeight / 2)); float startCLerp = floor(float(c) * invWidthScale); int startDyC = int(startCLerp - float(winWidth / 2)); // Loop over dy for (int dyROffset = 0; dyROffset < winHeight; dyROffset++) { int dyR = dyROffset + startDyR; // Guard against the window exceeding the bounds of dy if (dyR < 0 || dyR >= ${a}) { continue; } for (int dyCOffset = 0; dyCOffset < winWidth; dyCOffset++) { int dyC = dyCOffset + startDyC; // Guard against the window exceeding the bounds of dy if (dyC < 0 || dyC >= ${o}) { continue; } float dxR = float(dyR) * heightScale; int topDxRIndex = int(floor(dxR)); int bottomDxRIndex = int(min(ceil(dxR), ${r-1}.0)); float dxRLerp = dxR - float(topDxRIndex); float inverseDxRLerp = 1.0 - dxRLerp; float dxC = float(dyC) * widthScale; int leftDxCIndex = int(floor(dxC)); int rightDxCIndex = int(min(ceil(dxC), ${s-1}.0)); float dxCLerp = dxC - float(leftDxCIndex); float inverseDxCLerp = 1.0 - dxCLerp; if (r == topDxRIndex && c == leftDxCIndex) { // topLeft accumulator += getDy(b, dyR, dyC, d) * inverseDxRLerp * inverseDxCLerp; } if (r == topDxRIndex && c == rightDxCIndex) { // topRight accumulator += getDy(b, dyR, dyC, d) * inverseDxRLerp * dxCLerp; } if (r == bottomDxRIndex && c == leftDxCIndex) { // bottomLeft accumulator += getDy(b, dyR, dyC, d) * dxRLerp * inverseDxCLerp; } if (r == bottomDxRIndex && c == rightDxCIndex) { // bottomRight accumulator += getDy(b, dyR, dyC, d) * dxRLerp * dxCLerp; } } } // End loop over dy setOutput(accumulator); } `}};function DAe(e){let{inputs:t,backend:n,attrs:r}=e,{images:s,dy:a}=t,{alignCorners:o}=r,i=new RAe(a.shape,s.shape,o);return n.runWebGLProgram(i,[a],a.dtype)}var FAe={kernelName:Ky,backendName:"webgl",kernelFunc:DAe},MAe=class{constructor(e,t,n,r,s){this.variableNames=["A"],this.outputShape=[];let[a,o,i,l]=e;this.outputShape=[a,t,n,l];let u=[r&&t>1?o-1:o,r&&n>1?i-1:i],c=[r&&t>1?t-1:t,r&&n>1?n-1:n],d=r?"0.5":"0.0",h;s?h="max((vec2(yRC) + vec2(0.5)) * effectiveInputOverOutputRatioRC, vec2(0.0))":h="vec2(yRC) * effectiveInputOverOutputRatioRC",this.userCode=` const vec2 effectiveInputOverOutputRatioRC = vec2( ${u[0]/c[0]}, ${u[1]/c[1]}); const vec2 inputShapeRC = vec2(${o}.0, ${i}.0); void main() { ivec4 coords = getOutputCoords(); int b = coords[0]; int d = coords[3]; ivec2 yRC = coords.yz; // Fractional source index. vec2 sourceFracIndexRC = ${h}; // Compute the coordinators of nearest neighbor point. ivec2 sourceNearestRC = ivec2( min(inputShapeRC - 1.0, floor(sourceFracIndexRC + ${d}))); float newValue = getA(b, sourceNearestRC.x, sourceNearestRC.y, d); setOutput(newValue); } `}},OAe=class{constructor(e,t,n,r,s){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=[];let[a,o,i,l]=e;this.outputShape=[a,t,n,l];let u=[r&&t>1?o-1:o,r&&n>1?i-1:i],c=[r&&t>1?t-1:t,r&&n>1?n-1:n],d=r?"0.5":"0.0",h;s?h="max((vec3(yRC) + vec3(0.5)) * effectiveInputOverOutputRatioRC, vec3(0.0))":h="vec3(yRC) * effectiveInputOverOutputRatioRC",this.userCode=` const vec3 effectiveInputOverOutputRatioRC = vec3( ${u[0]/c[0]}, ${u[1]/c[1]}, ${u[1]/c[1]}); const vec3 inputShapeRC = vec3(${o}.0, ${i}.0, ${i}.0); float getAValue(int b, int r, int c, int d) { return getChannel(getA(b, r, c, d), vec2(c, d)); } void main() { ivec4 coords = getOutputCoords(); int b = coords[0]; int d = coords[3]; // Calculate values for next column in yRC.z. ivec3 yRC = coords.yzz + ivec3(0, 0, 1); // Fractional source index. vec3 sourceFracIndexRC = ${h}; // Compute the coordinators of nearest neighbor point. ivec3 sourceNearestRC = ivec3( min(inputShapeRC - 1.0, floor(sourceFracIndexRC + ${d}))); // Should we calculate next column and row elements in 2x2 packed cell. bool hasNextCol = d < ${l-1}; bool hasNextRow = coords.z < ${n-1}; vec4 newValue = vec4( getAValue(b, sourceNearestRC.x, sourceNearestRC.y, d), hasNextCol ? getAValue(b, sourceNearestRC.x, sourceNearestRC.y, d + 1) : 0.0, hasNextRow ? getAValue(b, sourceNearestRC.x, sourceNearestRC.z, d) : 0.0, (hasNextRow && hasNextCol) ? getAValue(b, sourceNearestRC.x, sourceNearestRC.z, d + 1) : 0.0); setOutput(newValue); } `}};function PAe(e){let{inputs:t,backend:n,attrs:r}=e,{images:s}=t,{alignCorners:a,halfPixelCenters:o,size:i}=r,[l,u]=i,c=ae().getBool("WEBGL_PACK_IMAGE_OPERATIONS")?new OAe(s.shape,l,u,a,o):new MAe(s.shape,l,u,a,o);return n.runWebGLProgram(c,[s],s.dtype)}var zAe={kernelName:af,backendName:"webgl",kernelFunc:PAe},LAe=class{constructor(e,t,n){this.variableNames=["dy"],this.outputShape=[],this.outputShape=t;let[,r,s]=t,[,a,o]=e,i=[n&&a>1?r-1:r,n&&o>1?s-1:s],l=[n&&a>1?a-1:a,n&&o>1?o-1:o],u=i[0]/l[0],c=i[1]/l[1],d=1/u,h=1/c,p=Math.ceil(d)*2+2,f=Math.ceil(h)*2+2;this.userCode=` void main() { ivec4 coords = getOutputCoords(); int b = coords[0]; int d = coords[3]; int r = coords[1]; int c = coords[2]; float accumulator = 0.0; const float heightScale = float(${u}); const float widthScale = float(${c}); const float invHeightScale = float(${d}); const float invWidthScale = float(${h}); const int winHeight = int(${p}); const int winWidth = int(${f}); // Compute bounds for where in dy we will look float startRLerp = floor(float(r) * invHeightScale); int startDyR = int(floor(startRLerp - float(winHeight / 2))); float startCLerp = floor(float(c) * invWidthScale); int startDyC = int(floor(startCLerp - float(winWidth / 2))); // Loop over dy for (int dyROffset = 0; dyROffset < winHeight; dyROffset++) { int dyR = dyROffset + startDyR; // Guard against the window exceeding the bounds of dy if (dyR < 0 || dyR >= ${a}) { continue; } for (int dyCOffset = 0; dyCOffset < winWidth; dyCOffset++) { int dyC = dyCOffset + startDyC; // Guard against the window exceeding the bounds of dy if (dyC < 0 || dyC >= ${o}) { continue; } float sourceFracRow = float(${i[0]}) * (float(dyR) / float(${l[0]})); float sourceFracCol = float(${i[1]}) * (float(dyC) / float(${l[1]})); int sourceNearestRow = int(min( float(int(${r}) - 1), ${n} ? float(round(sourceFracRow)) : float(floor(sourceFracRow)))); int sourceNearestCol = int(min( float(int(${s}) - 1), ${n} ? float(round(sourceFracCol)) : float(floor(sourceFracCol)))); if (r == sourceNearestRow && c == sourceNearestCol) { accumulator += getDy(b, dyR, dyC, d); } } } // End loop over dy setOutput(accumulator); } `}};function BAe(e){let{inputs:t,backend:n,attrs:r}=e,{images:s,dy:a}=t,{alignCorners:o}=r,i=new LAe(a.shape,s.shape,o);return n.runWebGLProgram(i,[a],a.dtype)}var WAe={kernelName:qy,backendName:"webgl",kernelFunc:BAe},VAe=class{constructor(e,t){this.variableNames=["x"];let n=e.length;if(n>4)throw new Error(`WebGL backend: Reverse of rank-${n} tensor is not yet supported`);if(this.outputShape=e,n===1){this.userCode=` void main() { int coord = getOutputCoords(); setOutput(getX(${e[0]} - coord - 1)); } `;return}let r=o=>t.indexOf(o)!==-1&&e[o]!==1?`${e[o]} - coords[${o}] - 1`:`coords[${o}]`,s=e.map((o,i)=>r(i)).join(","),a=It(n);this.userCode=` void main() { ${a} coords = getOutputCoords(); setOutput(getX(${s})); } `}},UAe=class{constructor(e,t){this.variableNames=["x"],this.packedInputs=!0,this.packedOutput=!0;let n=e.length;if(n>4)throw new Error(`WebGL backend: Reverse of rank-${n} tensor is not yet supported`);this.outputShape=e;let r=Vn("rc",n),s=`${r[n-1]} + 1 < ${this.outputShape[n-1]}`,a=`${r[n-2]} + 1 < ${this.outputShape[n-2]}`,o=It(n);n===1?this.userCode=` void main(){ int rc = getOutputCoords(); vec4 result = vec4(0.); result.r = getChannel(getX(${e[0]} - rc - 1), ${e[0]} - rc - 1); if(${s}){ result.g = getChannel(getX(${e[0]} - (rc + 1) - 1), ${e[0]} - (rc + 1) - 1); } setOutput(result); } `:this.userCode=` void main() { ${o} rc = getOutputCoords(); vec4 result = vec4(0.); result.r = ${i(r.slice())}; if(${s}){ result.g = ${l(r.slice())}; } if(${a}) { result.b = ${u(r.slice())}; if(${s}) { result.a = ${c(r.slice())}; } } setOutput(result); } `;function i(p){return d(p)}function l(p){return p[n-1]="("+p[n-1]+" + 1)",d(p)}function u(p){return p[n-2]="("+p[n-2]+" + 1)",d(p)}function c(p){return p[n-1]="("+p[n-1]+" + 1)",p[n-2]="("+p[n-2]+" + 1)",d(p)}function d(p){let 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setOutput(mix(getDefaultValue(), sum, float(found))); } `}};function e1e(e){let{inputs:t,backend:n,attrs:r}=e,{indices:s,updates:a}=t,{shape:o}=r,{sliceRank:i,numUpdates:l,sliceSize:u,strides:c,outputSize:d}=_.calculateShapes(a,s,o),h=[d/u,u];if(d===0)return n.makeTensorInfo(o,s.dtype);let p=ve({inputs:{x:s},backend:n,attrs:{shape:[l,i]}}),f=ve({inputs:{x:a},backend:n,attrs:{shape:[l,u]}}),m=n.makeTensorInfo([],"float32",new Float32Array([0])),g=new d9(l,i,p.shape.length,f.shape.length,c,h),y=n.runWebGLProgram(g,[f,p,m],f.dtype),A=ve({inputs:{x:y},backend:n,attrs:{shape:o}});return n.disposeIntermediateTensorInfo(p),n.disposeIntermediateTensorInfo(f),n.disposeIntermediateTensorInfo(y),n.disposeIntermediateTensorInfo(m),A}var t1e={kernelName:ed,backendName:"webgl",kernelFunc:e1e},n1e=class{constructor(e,t,n){this.variableNames=["c","a","b"],this.outputShape=t;let r,s;if(n>4)throw Error(`Where for rank ${n} is not yet supported`);if(n===1)s="resRC",r="resRC";else{let 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o=n.readSync(r.dataId),i=n.readSync(s.dataId),l=n.readSync(a.dataId),[u,c]=hE(o,r.shape,r.dtype,i,l,!0);return n.makeTensorInfo(c,r.dtype,u)}var $1e={kernelName:Yy,backendName:"webgl",kernelFunc:E1e};function _1e(e){let{inputs:t,backend:n}=e,{data:r,indices:s,segmentIds:a}=t;if(r.shape.length<1)throw new Error("Data should be at least 1 dimensional but received scalar");if(s.shape.length!==1)throw new Error(`Indices should be a vector but received shape ${s.shape}`);if(a.shape.length!==1)throw new Error(`Segment ids should be a vector but received shape ${a.shape}`);let o=n.readSync(r.dataId),i=n.readSync(s.dataId),l=n.readSync(a.dataId),[u,c]=hE(o,r.shape,r.dtype,i,l);return n.makeTensorInfo(c,r.dtype,u)}var R1e={kernelName:Jy,backendName:"webgl",kernelFunc:_1e};function D1e(e){let{inputs:t,backend:n,attrs:r}=e,{sparseIndices:s,sparseValues:a,defaultValue:o}=t,{outputShape:i}=r,{sliceRank:l,numUpdates:u,strides:c,outputSize:d}=_.calculateShapes(a,s,i),h=!1,p=new 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tan(x);",rxe=it({opSnippet:nxe}),sxe={kernelName:Ol,backendName:"webgl",kernelFunc:rxe},axe=` float e2x = exp(-2.0 * abs(x)); return sign(x) * (1.0 - e2x) / (1.0 + e2x); `,oxe=it({opSnippet:axe}),ixe={kernelName:Pl,backendName:"webgl",kernelFunc:oxe},lxe=class{constructor(e,t){this.variableNames=["A"];let n=new Array(e.length);for(let a=0;a5)throw Error(`Tile for rank ${t} is not yet supported`);if(t===1)return`imod(resRC, ${e[0]})`;let n=["resRC.x","resRC.y","resRC.z","resRC.w","resRC.u"],r=[];for(let s=0;s5){let l=n.readSync(s.dataId),u=s.dtype==="string"?l.map(h=>k.decodeString(h)):l,c=Le(s.shape,s.dtype,u),d=Mpe(c,a);return n.makeTensorInfo(d.shape,d.dtype,d.values)}let o=new lxe(s.shape,a);return n.runWebGLProgram(o,[s],s.dtype)}var cxe={kernelName:Lo,backendName:"webgl",kernelFunc:p9};function dxe(e){let{inputs:t,backend:n,attrs:r}=e,{x:s}=t,{k:a,sorted:o}=r,i=n.readSync(s.dataId),[l,u]=Ope(i,s.shape,s.dtype,a,o);return[n.makeTensorInfo(l.shape,l.dtype,l.values),n.makeTensorInfo(u.shape,u.dtype,u.values)]}var hxe={kernelName:ud,backendName:"webgl",kernelFunc:dxe},pxe=class{constructor(e,t,n,r,s,a){this.variableNames=["Image","Transforms"],this.outputShape=a;let o=n==="nearest"?1:2,i;switch(r){case"constant":i=1;break;case"reflect":i=2;break;case"wrap":i=3;break;case"nearest":i=4;break;default:i=1;break}this.userCode=` float mapCoord(float outCoord, float len) { float inCoord = outCoord; if(${i} == 2) { if (inCoord < 0.0) { if (len <= 1.0) { inCoord = 0.0; } else { float sz2 = 2.0 * len; if (inCoord < sz2) { inCoord = sz2 * float(int(float(-inCoord / sz2))) + inCoord; } inCoord = inCoord < -len ? inCoord + sz2 : -inCoord - 1.0; } } else if (inCoord > len - 1.0) { if (len <= 1.0) { inCoord = 0.0; } else { float sz2 = 2.0 * len; inCoord -= sz2 * float(int(float(inCoord / sz2))); if (inCoord >= len) { inCoord = sz2 - inCoord - 1.0; } } } return clamp(inCoord, 0.0, len - 1.0); } else if (${i} == 3) { if (inCoord < 0.0) { if (len <= 1.0) { inCoord = 0.0; } else { float sz = len - 1.0; inCoord += len * (float(int(float(-inCoord / sz))) + 1.0); } } else if (inCoord > len - 1.0) { if (len <= 1.0) { inCoord = 0.0; } else { float sz = len - 1.0; inCoord -= len * float(int(float(inCoord / sz))); } } return clamp(inCoord, 0.0, len - 1.0); } else if (${i} == 4) { return clamp(outCoord, 0.0, len - 1.0); } else { return outCoord; } } float readWithFillValue(int batch, int coordY, int coordX, int channel) { float outputValue; if (0 <= coordY && coordY < ${e} && 0 <= coordX && coordX < ${t}) { outputValue = getImage(batch, coordY, coordX, channel); } else { outputValue = float(${s}); } return outputValue; } void main() { ivec4 coords = getOutputCoords(); float outputValue; int batch = coords[0]; int x = coords[2]; int y = coords[1]; int channel = coords[3]; float xf = float(x); float yf = float(y); float a1 = getTransforms(batch, 0); float a2 = getTransforms(batch, 1); float a3 = getTransforms(batch, 2); float b1 = getTransforms(batch, 3); float b2 = getTransforms(batch, 4); float b3 = getTransforms(batch, 5); float c1 = getTransforms(batch, 6); float c2 = getTransforms(batch, 7); float projection = c1 * xf + c2 * yf + 1.0; if (projection == 0.0) { outputValue = float(${s}); } else { float inX = (a1 * xf + a2 * yf + a3) / projection; float inY = (b1 * xf + b2 * yf + b3) / projection; float mapX = mapCoord(inX, float(${t})); float mapY = mapCoord(inY, float(${e})); if (${o} == 1) { int coordY = int(round(mapY)); int coordX = int(round(mapX)); outputValue = readWithFillValue(batch, coordY, coordX, channel); } else { float yFloor = floor(mapY); float xFloor = floor(mapX); float yCeil = yFloor + 1.0; float xCeil = xFloor + 1.0; float valueYFloor = (xCeil - mapX) * readWithFillValue(batch, int(yFloor), int(xFloor), channel) + (mapX - xFloor) * readWithFillValue(batch, int(yFloor), int(xCeil), channel); float valueYCeil = (xCeil - mapX) * readWithFillValue(batch, int(yCeil), int(xFloor), channel) + (mapX - xFloor) * readWithFillValue(batch, int(yCeil), int(xCeil), channel); outputValue = (yCeil - mapY) * valueYFloor + (mapY - yFloor) * valueYCeil; } } setOutput(outputValue); } `}};function fxe(e){let{inputs:t,backend:n,attrs:r}=e,{image:s,transforms:a}=t,{interpolation:o,fillMode:i,fillValue:l,outputShape:u}=r,[c,d,h,p]=s.shape,[f,m]=u!=null?u:[d,h],g=[c,f,m,p],y=new pxe(d,h,o,i,l,g);return n.runWebGLProgram(y,[s,a],"float32")}var mxe={kernelName:cd,backendName:"webgl",kernelFunc:fxe};function gxe(e){let{inputs:t,attrs:n,backend:r}=e,{axis:s}=n,{x:a}=t;mu(a,"unique"),console.warn("WARNING: ","UI might be locked temporarily as data is being downloaded");let o=r.readSync(a.dataId),{outputValues:i,outputShape:l,indices:u}=Ppe(o,s,a.shape,a.dtype);return[r.makeTensorInfo(l,a.dtype,i),r.makeTensorInfo([u.length],"int32",u)]}var yxe={kernelName:rA,backendName:"webgl",kernelFunc:gxe};function Axe(e){let{inputs:t,backend:n,attrs:r}=e,{value:s}=t,{axis:a}=r;a<0&&(a+=s.shape.length);let o=s,i=o.shape.length,l=s.shape[a],u=new Array(i-1),c=0;for(let m=0;mn.disposeIntermediateTensorInfo(m)),f}var xxe={kernelName:dd,backendName:"webgl",kernelFunc:Axe},bxe=class{constructor(e,t){this.variableNames=["x","segmentIds"];let n=e.windowSize,r=e.batchSize,s=e.inSize,a=e.numSegments,o=a*Math.ceil(s/n);this.outputShape=[r,o];let i="0.0",l="sumValue",u=Math.floor(n/4)*4,c=n%4,d=` sumValue += dot(values, segFilter); `,h="";s%n>0&&(h=` if (inIdx < 0 || inIdx >= ${s}) { return initializationValue; } `);let p="";s%n>0&&(p=` if (inIdx < 0 || inIdx >= ${s}) { return -1.0; } `),this.userCode=` const float initializationValue = ${i}; float getValue(int batch, int inIdx) { ${h} return getX(batch, inIdx); } float getSegmentIdAtIndex(int inIdx) { ${p} return getSegmentIds(inIdx); } void main() { ivec2 coords = getOutputCoords(); int batch = coords[0]; int outIdx = coords[1]; int inOffset = int(floor(float(outIdx) / float( ${a})) * float(${n})); int currentSeg = int(mod(float(outIdx), float(${a}))); float sumValue = 0.0; for (int i = 0; i < ${u}; i += 4) { int inIdx = inOffset + i; vec4 values = vec4( getValue(batch, inIdx), getValue(batch, inIdx + 1), getValue(batch, inIdx + 2), getValue(batch, inIdx + 3) ); vec4 segFilter = vec4( int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0, int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0, int(getSegmentIdAtIndex(inIdx + 2)) == currentSeg ? 1 : 0, int(getSegmentIdAtIndex(inIdx + 3)) == currentSeg ? 1 : 0 ); ${d} } int inIdx = inOffset + ${u}; if (${c===1}) { vec4 values = vec4( getValue(batch, inIdx), initializationValue, initializationValue, initializationValue ); int inIdxSeg = int(getSegmentIdAtIndex(inIdx)); vec4 segFilter = vec4( int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0, 0, 0, 0 ); ${d} } else if (${c===2}) { vec4 values = vec4( getValue(batch, inIdx), getValue(batch, inIdx + 1), initializationValue, initializationValue ); vec4 segFilter = vec4( int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0, int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0, 0, 0 ); ${d} } else if (${c===3}) { vec4 values = vec4( getValue(batch, inIdx), getValue(batch, inIdx + 1), getValue(batch, inIdx + 2), initializationValue ); vec4 segFilter = vec4( int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0, int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0, int(getSegmentIdAtIndex(inIdx + 2)) == currentSeg ? 1 : 0, 0 ); ${d} } setOutput(${l}); } `}};function vxe(e){let{inputs:t,backend:n,attrs:r}=e,{x:s,segmentIds:a}=t,{numSegments:o}=r,i=s.shape.length,l=[],u=0,c=_.getAxesPermutation([u],i),d=s;c!=null&&(d=Un({inputs:{x:s},backend:n,attrs:{perm:c}}),l.push(d),u=_.getInnerMostAxes(1,i)[0]);let h=_.segment_util.computeOutShape(d.shape,u,o),p=k.sizeFromShape([d.shape[u]]),f=ve({inputs:{x:d},backend:n,attrs:{shape:[-1,p]}});l.push(f);let m=fA(s.dtype),g=(b,v,w,I,T)=>{let C=b.shape[0],M=b.shape[1],$=_.segment_util.segOpComputeOptimalWindowSize(M,T),R={windowSize:$,inSize:M,batchSize:C,numSegments:T},N=new bxe(R,v),F=n.compileAndRun(N,[b,w],I);if(l.push(F),F.shape[1]===T)return F;let B=c9({backend:n,attrs:{start:0,stop:T,step:1,dtype:"float32"}}),j=p9({inputs:{x:B},backend:n,attrs:{reps:[M/$]}});return l.push(B),l.push(j),g(F,v,j,I,T)},y=g(f,"unsortedSegmentSum",a,m,o),A=ve({inputs:{x:y},backend:n,attrs:{shape:h}}),x=A;if(c!=null){l.push(A);let b=_.getUndoAxesPermutation(c);x=Un({inputs:{x},backend:n,attrs:{perm:b}})}return l.forEach(b=>n.disposeIntermediateTensorInfo(b)),x}var wxe={kernelName:uf,backendName:"webgl",kernelFunc:vxe},kxe=[Y2e,eye,Ofe,zfe,Wfe,Hfe,jfe,Xfe,Yfe,Qfe,rme,ame,lme,dme,Ame,fme,vme,Sme,kme,Eme,_me,Dme,Pme,Hme,jme,Jme,e0e,s0e,i0e,yfe,h0e,w0e,I0e,g0e,C0e,$0e,T0e,D0e,O0e,L0e,W0e,U0e,j0e,J0e,ege,K0e,rge,oge,lge,hge,gge,bge,kge,Ige,Sge,Nge,Ege,_ge,Dge,Mge,Lge,Vge,Gge,qge,Zge,e2e,s2e,l2e,gfe,c2e,c0e,p2e,g2e,x2e,xfe,k2e,N2e,E2e,O2e,D2e,B2e,U2e,q2e,nye,cye,lye,fye,gye,Aye,oye,bye,wye,Tye,$ye,Fye,Vye,Ife,Hye,qye,Zye,Qye,Kme,nAe,sAe,oAe,uAe,pAe,vfe,mAe,gAe,Xme,zye,xAe,NAe,kAe,Tfe,_Ae,FAe,zAe,WAe,GAe,qAe,ZAe,QAe,t1e,s1e,i1e,c1e,p1e,g1e,x1e,Vme,Bye,w1e,I1e,T1e,C1e,$1e,R1e,F1e,O1e,L1e,V1e,H1e,j1e,X1e,Y1e,Q1e,txe,Lye,Dfe,sxe,ixe,cxe,hxe,mxe,Ffe,yxe,xxe,wxe,rAe];for(let e of kxe)iA(e);var tr;(function(e){e[e.float32=0]="float32",e[e.int32=1]="int32",e[e.bool=2]="bool",e[e.string=3]="string",e[e.complex64=4]="complex64"})(tr||(tr={}));var gh;(function(e){e[e.linear=0]="linear",e[e.relu=1]="relu",e[e.relu6=2]="relu6",e[e.prelu=3]="prelu",e[e.leakyrelu=4]="leakyrelu",e[e.sigmoid=5]="sigmoid"})(gh||(gh={}));var f9;function Ixe(e){f9=e.wasm.cwrap(Ll,null,["number","array","number","number","array","number","number","number","number","number","number","number","number"])}function Sxe(e){let{inputs:t,backend:n,attrs:r}=e,{a:s,b:a,bias:o,preluActivationWeights:i}=t;if(s.dtype!=="float32"||a.dtype!=="float32")throw new Error("_FusedMatMul for non non-float32 tensors not yet supported.");let{transposeA:l,transposeB:u,activation:c,leakyreluAlpha:d}=r,h=n.dataIdMap.get(s.dataId).id,p=n.dataIdMap.get(a.dataId).id,f=0;if(o!=null){let T=n.dataIdMap.get(o.dataId);if(T.shape.length!==1)throw new Error(`_FusedMatMul only supports rank-1 bias but got rank ${T.shape.length}.`);f=T.id}let m=i==null?0:n.dataIdMap.get(i.dataId).id,g=gh[c];if(g==null)throw new Error(`${c} activation not yet supported for FusedConv2D in the wasm backend.`);let 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a(o){let{backend:i,inputs:l}=o,{a:u,b:c}=l,d=i.dataIdMap.get(u.dataId).id,h=i.dataIdMap.get(c.dataId).id,p=n!=null?n:u.dtype,f=_.assertAndGetBroadcastShape(u.shape,c.shape),m=i.makeOutput(f,p);if(k.sizeFromShape(f)===0)return m;let g=new Uint8Array(new Int32Array(u.shape).buffer),y=new Uint8Array(new Int32Array(c.shape).buffer),A=i.dataIdMap.get(m.dataId).id,x=()=>r(d,g,u.shape.length,h,y,c.shape.length,tr[u.dtype],A);if(t&&u.dtype==="float32")return x(),m;let b=_.getBroadcastDims(u.shape,f),v=_.getBroadcastDims(c.shape,f),w=b.every((T,C)=>T===C),I=v.every((T,C)=>T===C);if(w&&I)return x(),m;throw new Error(`Broadcasting along outer dims is not yet supported for ${u.dtype} ${e}.`)}return{kernelName:e,backendName:"wasm",setupFunc:s,kernelFunc:a}}var Cxe=!0,Exe=Gn(Fa,Cxe),m9;function $xe(e){m9=e.wasm.cwrap(Zi,null,["array","number","number","number"])}function _xe(e){let{inputs:t,backend:n}=e,r=n.makeOutput(t[0].shape,t[0].dtype);if(k.sizeFromShape(r.shape)===0)return r;let s=t.map(i=>n.dataIdMap.get(i.dataId).id),a=new Uint8Array(new Int32Array(s).buffer),o=n.dataIdMap.get(r.dataId).id;return m9(a,s.length,tr[r.dtype],o),r}var Rxe={kernelName:Zi,backendName:"wasm",setupFunc:$xe,kernelFunc:_xe};function Qm(e){let{inputs:{x:t},backend:n}=e,r=n.makeOutput(t.shape,t.dtype),s=n.typedArrayFromHeap(t);return n.typedArrayFromHeap(r).set(s),r}var Dxe={kernelName:hl,backendName:"wasm",kernelFunc:Qm},g9;function Fxe(e){g9=e.wasm.cwrap(zl,null,["number","array","number","number","number","array","number"])}function e0(e){let{inputs:t,backend:n,attrs:r}=e,[s,a]=Oxe(t.x.shape,r.perm),o=!0;for(let f=0;f=s&&(a===-1||r[a]>r[o])&&(a=o);r[a]=s}return[n,r]}var Pxe={kernelName:zl,backendName:"wasm",kernelFunc:e0,setupFunc:Fxe};function to(e,t,n){let r=e.shape,s=e.shape.length,a=k.parseAxisParam(t,r),o=a,i=_.getAxesPermutation(o,s),l=null,u=!1;if(i!=null){let c=new Array(s);for(let p=0;p`new shape: ${o}, old shape: ${r.shape}. 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Ove=[127,234,132,58,172,150,149,148,152,377,378,379,397,288,361,454,356,70,63,105,66,107,336,296,334,293,300,168,6,195,4,98,97,2,326,327,33,160,158,133,153,144,362,385,387,263,373,380,57,40,37,0,267,270,287,321,314,17,84,91,78,81,13,311,308,402,14,178],Pve=[33,133,362,263,1,62,308,159,145,386,374,6,102,331,2,13,14,70,105,107,336,334,300,54,10,284,50,280,234,454,58,288,152],zve=[33,133,362,263,1,78,308],y7e=Ove.map(e=>wh[e]),A7e=Pve.map(e=>wh[e]),x7e=zve.map(e=>wh[e]);var kb=Bs.leftEyeLower0,Ib=Bs.rightEyeLower0,Cu={leftBounds:[kb[0],kb[kb.length-1]],rightBounds:[Ib[0],Ib[Ib.length-1]]},l0={count:468,mouth:13,symmetryLine:[13,Bs.midwayBetweenEyes[0]]},w$={leftEye:0,rightEye:1,nose:2,mouth:3,leftEar:4,rightEar:5,symmetryLine:[3,2]},Eu={upperCenter:3,lowerCenter:4,index:71,numCoordinates:76};function u0(e,t,n,r){for(let s=0;s[a[0]/this.meshSize*(d[0]-this.meshSize/2),a[1]/this.meshSize*(d[1]-this.meshSize/2),d[2]]),i=r!==0?i0(r,[0,0]):o0,l=r!==0?o.map(d=>[...y$(d,i),d[2]]):o,u=r!==0?g$(s):o0,c=[...Tu({startPoint:n.startPoint,endPoint:n.endPoint}),1];return l.map(d=>[Math.round(d[0]+no(c,u[0])),Math.round(d[1]+no(c,u[1])),Math.round(d[2])])}getLeftToRightEyeDepthDifference(t){let n=t[Cu.leftBounds[0]][2],r=t[Cu.rightBounds[0]][2];return n-r}getEyeBox(t,n,r,s,a=!1){let o=a0(s0(bb([t[r],t[s]]),this.irisEnlarge)),i=vh(o),l=Ye.cropAndResize(n,[[o.startPoint[1]/this.meshSize,o.startPoint[0]/this.meshSize,o.endPoint[1]/this.meshSize,o.endPoint[0]/this.meshSize]],[0],[this.irisSize,this.irisSize]);return a&&Sr.flags.IS_BROWSER&&(l=Ye.flipLeftRight(l)),{box:o,boxSize:i,crop:l}}getEyeCoords(t,n,r,s=!1){let a=[];for(let o=0;o{let u=o;return l===2?u=s:l===4&&(u=a),[i[0],i[1],u]})}async predict(t,n){let r=!1,s;if((this.skipped===0||this.skipped>n.face.detector.skipFrames||!n.face.mesh.enabled||!n.skipFrame)&&(s=await this.boundingBoxDetector.getBoundingBoxes(t),this.skipped=0),n.skipFrame&&this.skipped++,!n.skipFrame||s&&s.boxes&&(!n.face.mesh.enabled||s.boxes.length!==this.detectedFaces&&this.detectedFaces!==n.face.detector.maxDetected)){this.storedBoxes=[],this.detectedFaces=0;for(let o of s.boxes)this.storedBoxes.push({startPoint:o.box.startPoint.dataSync(),endPoint:o.box.endPoint.dataSync(),landmarks:o.landmarks.arraySync(),confidence:o.confidence});this.storedBoxes.length>0&&(r=!0)}if(r){if(!s||!s.boxes||s.boxes.length===0)return this.storedBoxes=[],this.detectedFaces=0,null;for(let o=0;o{o.box.startPoint.dispose(),o.box.endPoint.dispose(),o.landmarks.dispose()});let a=Ue(()=>this.storedBoxes.map((o,i)=>{let 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n)o.dispose();let s=await O$(r[0],r[1],r[2],r[3],t.body.maxDetected,t.body.minConfidence);return yr.inputs[0].shape?R$(s,[e.shape[1],e.shape[2]],[yr.inputs[0].shape[2],yr.inputs[0].shape[1]]):[]}async function Hb(e){return yr?e.debug&&me("cached model:",yr.modelUrl):(yr=await Et($t(e.modelBasePath,e.body.modelPath)),!yr||!yr.modelUrl?me("load model failed:",e.body.modelPath):e.debug&&me("load model:",yr.modelUrl)),yr}function p0(e){return[Math.abs(e.endPoint[0]-e.startPoint[0]),Math.abs(e.endPoint[1]-e.startPoint[1])]}function Sh(e){return[e.startPoint[0]+(e.endPoint[0]-e.startPoint[0])/2,e.startPoint[1]+(e.endPoint[1]-e.startPoint[1])/2]}function P$(e,t,n){let r=t.shape[1],s=t.shape[2],a=[[e.startPoint[1]/r,e.startPoint[0]/s,e.endPoint[1]/r,e.endPoint[0]/s]];return Ye.cropAndResize(t,a,[0],n)}function z$(e,t){let n=[e.startPoint[0]*t[0],e.startPoint[1]*t[1]],r=[e.endPoint[0]*t[0],e.endPoint[1]*t[1]],s=e.palmLandmarks.map(a=>[a[0]*t[0],a[1]*t[1]]);return{startPoint:n,endPoint:r,palmLandmarks:s,confidence:e.confidence}}function f0(e,t=1.5){let n=Sh(e),r=p0(e),s=[t*r[0]/2,t*r[1]/2],a=[n[0]-s[0],n[1]-s[1]],o=[n[0]+s[0],n[1]+s[1]];return{startPoint:a,endPoint:o,palmLandmarks:e.palmLandmarks}}function m0(e){let t=Sh(e),n=p0(e),s=Math.max(...n)/2,a=[t[0]-s,t[1]-s],o=[t[0]+s,t[1]+s];return{startPoint:a,endPoint:o,palmLandmarks:e.palmLandmarks}}var 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Ye.nonMaxSuppressionAsync(l,o,n.hand.maxDetected,n.hand.iouThreshold,n.hand.minConfidence),c=u.arraySync();a.dispose(),u.dispose();let d=[];for(let h of c)if(o[h]>=n.hand.minConfidence){let p=Ze(l,[h,0],[1,-1]),f=Ze(s,[h,5],[1,14]),m=Ue(()=>this.normalizeLandmarks(f,h).reshape([-1,2]));f.dispose(),d.push({box:p,palmLandmarks:m,confidence:o[h]})}return s.dispose(),l.dispose(),d}async estimateHandBounds(t,n){let r=t.shape[1],s=t.shape[2],a=Ue(()=>t.resizeBilinear([this.inputSize,this.inputSize]).div(127.5).sub(1)),o=await this.getBoxes(a,n);a.dispose();let i=[];if(!o||o.length===0)return i;for(let l of o){let u=l.box.dataSync(),c=u.slice(0,2),d=u.slice(2,4),h=l.palmLandmarks.arraySync();l.box.dispose(),l.palmLandmarks.dispose(),i.push(z$({startPoint:c,endPoint:d,palmLandmarks:h,confidence:l.confidence},[s/this.inputSize,r/this.inputSize]))}return i}};function Zve(e){return e-2*Math.PI*Math.floor((e+Math.PI)/(2*Math.PI))}function B$(e,t){let n=Math.PI/2-Math.atan2(-(t[1]-e[1]),t[0]-e[0]);return Zve(n)}var W$=(e,t)=>[[1,0,e],[0,1,t],[0,0,1]];function ro(e,t){let n=0;for(let r=0;ro[0]),r=t.map(o=>o[1]),s=[Math.min(...n),Math.min(...r)],a=[Math.max(...n),Math.max(...r)];return{startPoint:s,endPoint:a}}getBoxForPalmLandmarks(t,n){let r=t.map(a=>qb([...a,1],n)),s=this.calculateLandmarksBoundingBox(r);return f0(m0(s),Jve)}getBoxForHandLandmarks(t){let n=this.calculateLandmarksBoundingBox(t),r=f0(m0(n),H$);r.palmLandmarks=[];for(let s=0;s[o[0]*(p[0]-this.inputSize/2),o[1]*(p[1]-this.inputSize/2),o[2]*p[2]]),l=jb(r,[0,0]),u=i.map(p=>[...qb(p,l),p[2]]),c=U$(s),d=[...Sh(n),1],h=[ro(d,c[0]),ro(d,c[1])];return u.map(p=>[Math.trunc(p[0]+h[0]),Math.trunc(p[1]+h[1]),Math.trunc(p[2])])}async estimateHands(t,n){let r=!1,s;(this.skipped===0||this.skipped>n.hand.skipFrames||!n.hand.landmarks||!n.skipFrame)&&(s=await 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n=await q$.estimateHands(e,t);if(!n)return[];let r=[];for(let s=0;sn[s].landmarks[c]);let o=n[s].landmarks,i=[Number.MAX_SAFE_INTEGER,Number.MAX_SAFE_INTEGER,0,0],l=[0,0,0,0];if(o&&o.length>0){for(let u of o)u[0]i[2]&&(i[2]=u[0]),u[1]>i[3]&&(i[3]=u[1]);i[2]-=i[0],i[3]-=i[1],l=[i[0]/(e.shape[2]||0),i[1]/(e.shape[1]||0),i[2]/(e.shape[2]||0),i[3]/(e.shape[1]||0)]}else i=n[s].box?[Math.trunc(Math.max(0,n[s].box.topLeft[0])),Math.trunc(Math.max(0,n[s].box.topLeft[1])),Math.trunc(Math.min(e.shape[2]||0,n[s].box.bottomRight[0])-Math.max(0,n[s].box.topLeft[0])),Math.trunc(Math.min(e.shape[1]||0,n[s].box.bottomRight[1])-Math.max(0,n[s].box.topLeft[1]))]:[0,0,0,0],l=[n[s].box.topLeft[0]/(e.shape[2]||0),n[s].box.topLeft[1]/(e.shape[1]||0),(n[s].box.bottomRight[0]-n[s].box.topLeft[0])/(e.shape[2]||0),(n[s].box.bottomRight[1]-n[s].box.topLeft[1])/(e.shape[1]||0)];r.push({id:s,score:Math.round(100*n[s].confidence)/100,box:i,boxRaw:l,keypoints:o,annotations:a})}return r}async function 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K$=["nose","leftEyeInside","leftEye","leftEyeOutside","rightEyeInside","rightEye","rightEyeOutside","leftEar","rightEar","leftMouth","rightMouth","leftShoulder","rightShoulder","leftElbow","rightElbow","leftWrist","rightWrist","leftPalm","rightPalm","leftIndex","rightIndex","leftPinky","rightPinky","leftHip","rightHip","leftKnee","rightKnee","leftAnkle","rightAnkle","leftHeel","rightHeel","leftFoot","rightFoot","midHip","forehead","leftThumb","leftHand","rightThumb","rightHand"],X$=["nose","leftEyeInside","leftEye","leftEyeOutside","rightEyeInside","rightEye","rightEyeOutside","leftEar","rightEar","leftMouth","rightMouth","leftShoulder","rightShoulder","leftElbow","rightElbow","left:15","right:16","left:17","right:18","left:19","right:20","left:21","right:22","leftChest","rightChest","neck","forehead","left:27","right:28","left:29","right:30"];var nr;async function g0(e){return nr?e.debug&&me("cached model:",nr.modelUrl):(nr=await Et($t(e.modelBasePath,e.body.modelPath)),nr.width=parseInt(nr.signature.inputs["input_1:0"].tensorShape.dim[2].size),nr.height=parseInt(nr.signature.inputs["input_1:0"].tensorShape.dim[1].size),!nr||!nr.modelUrl?me("load model failed:",e.body.modelPath):e.debug&&me("load model:",nr.modelUrl)),nr}async function Yb(e,t){var m;if(!nr)return[];if(!t.body.enabled)return[];let n={width:e.shape[2]||0,height:e.shape[1]||0},r=Ye.resizeBilinear(e,[nr.width,nr.height],!1),s=Qe(r,[255]);r.dispose();let a=await nr.predict(s),o=((m=a.find(g=>g.size===195||g.size===155))==null?void 0:m.dataSync())||[];a.forEach(g=>g.dispose()),s.dispose();let i=[],l=(o==null?void 0:o.length)===195?K$:X$,u=5;for(let g=0;gg.position[0]),d=i.map(g=>g.position[1]),h=[Math.min(...c),Math.min(...d),Math.max(...c)-Math.min(...c),Math.max(...d)-Math.min(...c)],p=[0,0,0,0],f=i.reduce((g,y)=>y.score>g?y.score:g,0);return[{id:0,score:f,box:h,boxRaw:p,keypoints:i}]}var rr,Ws=[],Jb=[0,0,0,0],Qb=[0,0,0,0],y0=0,e3=Number.MAX_SAFE_INTEGER,twe=["head","neck","rightShoulder","rightElbow","rightWrist","chest","leftShoulder","leftElbow","leftWrist","pelvis","rightHip","rightKnee","rightAnkle","leftHip","leftKnee","leftAnkle"];async function Z$(e){return rr?e.debug&&me("cached model:",rr.modelUrl):(rr=await Et($t(e.modelBasePath,e.body.modelPath)),!rr||!rr.modelUrl?me("load model failed:",e.body.modelPath):e.debug&&me("load model:",rr.modelUrl)),rr}function nwe(e,t){let[n,r]=e.shape;return Ue(()=>{let s=(i,l)=>He(i,fe(Qe(i,ut(l,"int32")),ut(l,"int32"))),a=ue(e,[r*n]),o=_a(a,0).dataSync()[0];if(o>t){let i=Y2(a,0),l=s(i,n).dataSync()[0],u=Qe(i,ut(n,"int32")).dataSync()[0];return[l,u,o]}return[0,0,o]})}async function t3(e,t){return e30?(e3++,[{id:0,score:y0,box:Jb,boxRaw:Qb,keypoints:Ws}]):(e3=0,new Promise(async n=>{let r=Ue(()=>{if(!rr.inputs[0].shape)return null;let u=Ye.resizeBilinear(e,[rr.inputs[0].shape[2],rr.inputs[0].shape[1]],!1);return 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vs,Vs=[],n3=[0,0,0,0],r3=[0,0,0,0],_u=0,s3=Number.MAX_SAFE_INTEGER,rwe=["nose","leftEye","rightEye","leftEar","rightEar","leftShoulder","rightShoulder","leftElbow","rightElbow","leftWrist","rightWrist","leftHip","rightHip","leftKnee","rightKnee","leftAnkle","rightAnkle"];async function a3(e){return vs?e.debug&&me("cached model:",vs.modelUrl):(vs=await Et($t(e.modelBasePath,e.body.modelPath)),!vs||!vs.modelUrl?me("load model failed:",e.body.modelPath):e.debug&&me("load model:",vs.modelUrl)),vs}async function o3(e,t){return s30?(s3++,[{id:0,score:_u,box:n3,boxRaw:r3,keypoints:Vs}]):(s3=0,new Promise(async n=>{let r=Ue(()=>{if(!vs.inputs[0].shape)return null;let u=Ye.resizeBilinear(e,[vs.inputs[0].shape[2],vs.inputs[0].shape[1]],!1);return Pt(u,"int32")}),s;if(t.body.enabled&&(s=await vs.predict(r)),r.dispose(),s){Vs.length=0;let u=s.arraySync();Ve(s);let c=u[0][0];for(let d=0;dt.body.minConfidence&&Vs.push({score:Math.round(100*_u)/100,part:rwe[d],positionRaw:[c[d][1],c[d][0]],position:[Math.round((e.shape[2]||0)*c[d][1]),Math.round((e.shape[1]||0)*c[d][0])]})}_u=Vs.reduce((u,c)=>c.score>u?c.score:u,0);let a=Vs.map(u=>u.position[0]),o=Vs.map(u=>u.position[1]);n3=[Math.min(...a),Math.min(...o),Math.max(...a)-Math.min(...a),Math.max(...o)-Math.min(...o)];let i=Vs.map(u=>u.positionRaw[0]),l=Vs.map(u=>u.positionRaw[1]);r3=[Math.min(...i),Math.min(...l),Math.max(...i)-Math.min(...i),Math.max(...l)-Math.min(...l)],n([{id:0,score:_u,box:n3,boxRaw:r3,keypoints:Vs}])}))}var Ru=[{class:1,label:"person"},{class:2,label:"bicycle"},{class:3,label:"car"},{class:4,label:"motorcycle"},{class:5,label:"airplane"},{class:6,label:"bus"},{class:7,label:"train"},{class:8,label:"truck"},{class:9,label:"boat"},{class:10,label:"traffic light"},{class:11,label:"fire hydrant"},{class:12,label:"stop sign"},{class:13,label:"parking 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drier"},{class:80,label:"toothbrush"}];var Ar,i3=[],l3=Number.MAX_SAFE_INTEGER,A0=2.5;async function u3(e){if(Ar)e.debug&&me("cached model:",Ar.modelUrl);else{Ar=await Et($t(e.modelBasePath,e.object.modelPath));let t=Object.values(Ar.modelSignature.inputs);if(Ar.inputSize=Array.isArray(t)?parseInt(t[0].tensorShape.dim[2].size):null,!Ar.inputSize)throw new Error(`Human: Cannot determine model inputSize: ${e.object.modelPath}`);!Ar||!Ar.modelUrl?me("load model failed:",e.object.modelPath):e.debug&&me("load model:",Ar.modelUrl)}return Ar}async function swe(e,t,n,r){let s=0,a=[];for(let u of[1,2,4])Ue(()=>{var g,y;let c=u*13,d=(g=e.find(A=>A.shape[1]===c**2&&A.shape[2]===Ru.length))==null?void 0:g.squeeze(),h=(y=e.find(A=>A.shape[1]===c**2&&A.shape[2]r.object.minConfidence&&x!==61){let v=(.5+Math.trunc(A%c))/c,w=(.5+Math.trunc(A/c))/c,I=f[A].map(B=>B*(c/u/t)),[T,C]=[v-A0/u*I[0],w-A0/u*I[1]],[M,$]=[v+A0/u*I[2]-T,w+A0/u*I[3]-C],R=[T,C,M,$];R=R.map(B=>Math.max(0,Math.min(B,1)));let 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r=e[n].mesh[33][2]-e[n].mesh[263][2];Math.abs(r)<10?t.push({face:n,gesture:"facing center"}):t.push({face:n,gesture:`facing ${r<0?"left":"right"}`}),Math.abs(e[n].mesh[374][1]-e[n].mesh[386][1])/Math.abs(e[n].mesh[443][1]-e[n].mesh[450][1])<.2&&t.push({face:n,gesture:"blink left eye"}),Math.abs(e[n].mesh[145][1]-e[n].mesh[159][1])/Math.abs(e[n].mesh[223][1]-e[n].mesh[230][1])<.2&&t.push({face:n,gesture:"blink right eye"});let o=Math.min(100,500*Math.abs(e[n].mesh[13][1]-e[n].mesh[14][1])/Math.abs(e[n].mesh[10][1]-e[n].mesh[152][1]));o>10&&t.push({face:n,gesture:`mouth ${Math.trunc(o)}% open`});let i=e[n].mesh[152][2];Math.abs(i)>10&&t.push({face:n,gesture:`head ${i<0?"up":"down"}`})}return t},Q$=e=>{if(!e)return[];let t=[];for(let n=0;n.06||d>.06)&&(u=!1),h>.06&&t.push({iris:n,gesture:"looking right"}),d>.06&&t.push({iris:n,gesture:"looking left"});let 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a[v]=a[v]||y(i,l),a[v]},x=function(v=null){var C,M;let w=null,I=null,T=!1;t===0?w=n:w=(C=A(s))==null?void 0:C.texture,t++,r&&!(v&f.INTERMEDIATE)?(I=null,T=t%2==0):(s=(s+1)%2,I=(M=A(s))==null?void 0:M.fbo),m.bindTexture(m.TEXTURE_2D,w),m.bindFramebuffer(m.FRAMEBUFFER,I),m.uniform1f(c.uniform.flipY,T?-1:1),m.drawArrays(m.TRIANGLES,0,6)};this.apply=function(v){if(g(v.width,v.height),t=0,n||(n=m.createTexture()),m.bindTexture(m.TEXTURE_2D,n),m.texParameteri(m.TEXTURE_2D,m.TEXTURE_WRAP_S,m.CLAMP_TO_EDGE),m.texParameteri(m.TEXTURE_2D,m.TEXTURE_WRAP_T,m.CLAMP_TO_EDGE),m.texParameteri(m.TEXTURE_2D,m.TEXTURE_MIN_FILTER,m.NEAREST),m.texParameteri(m.TEXTURE_2D,m.TEXTURE_MAG_FILTER,m.NEAREST),m.texImage2D(m.TEXTURE_2D,0,m.RGBA,m.RGBA,m.UNSIGNED_BYTE,v),o.length===0)return x(),h;for(let w=0;w0,a=e.naturalHeight||e.videoHeight||e.height||e.shape&&e.shape[2]>0;if(!s||!a)return{tensor:null,canvas:Oe};let o=s,i=a;if(o>x0&&(o=x0,i=o*a/s),i>x0&&(i=x0,o=i*s/a),t.filter.width>0?o=t.filter.width:t.filter.height>0&&(o=s*(t.filter.height/a)),t.filter.height>0?i=t.filter.height:t.filter.width>0&&(i=a*(t.filter.width/s)),!o||!i)throw new Error("Human: Input cannot determine dimension");(!Oe||(Oe==null?void 0:Oe.width)!==o||(Oe==null?void 0:Oe.height)!==i)&&(Oe=typeof OffscreenCanvas!="undefined"?new OffscreenCanvas(o,i):document.createElement("canvas"),(Oe==null?void 0:Oe.width)!==o&&(Oe.width=o),(Oe==null?void 0:Oe.height)!==i&&(Oe.height=i));let l=Oe.getContext("2d");if(e instanceof ImageData?l.putImageData(e,0,0):t.filter.flip&&typeof l.translate!="undefined"?(l.translate(s,0),l.scale(-1,1),l.drawImage(e,0,0,s,a,0,0,Oe==null?void 0:Oe.width,Oe==null?void 0:Oe.height),l.setTransform(1,0,0,1,0,0)):l.drawImage(e,0,0,s,a,0,0,Oe==null?void 0:Oe.width,Oe==null?void 0:Oe.height),t.filter.enabled){if((!rn||!Bt||Oe.width!==Bt.width||(Oe==null?void 0:Oe.height)!==(Bt==null?void 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t_({canvas:Bt}):null),!rn)return{tensor:null,canvas:Oe};rn.reset(),rn.addFilter("brightness",t.filter.brightness),t.filter.contrast!==0&&rn.addFilter("contrast",t.filter.contrast),t.filter.sharpness!==0&&rn.addFilter("sharpen",t.filter.sharpness),t.filter.blur!==0&&rn.addFilter("blur",t.filter.blur),t.filter.saturation!==0&&rn.addFilter("saturation",t.filter.saturation),t.filter.hue!==0&&rn.addFilter("hue",t.filter.hue),t.filter.negative&&rn.addFilter("negative"),t.filter.sepia&&rn.addFilter("sepia"),t.filter.vintage&&rn.addFilter("brownie"),t.filter.sepia&&rn.addFilter("sepia"),t.filter.kodachrome&&rn.addFilter("kodachrome"),t.filter.technicolor&&rn.addFilter("technicolor"),t.filter.polaroid&&rn.addFilter("polaroid"),t.filter.pixelate!==0&&rn.addFilter("pixelate",t.filter.pixelate),rn.apply(Oe)}else Bt=Oe,rn&&(rn=null);let u;if(Bt.data){let c=[Bt.height,Bt.width,3];u=mp(Bt.data,c,"int32")}else if(Bt instanceof ImageData)u=Hr?Hr.fromPixels(Bt):null;else if(t.backend==="webgl"||t.backend==="humangl"){let c=typeof OffscreenCanvas!="undefined"?new OffscreenCanvas(o,i):document.createElement("canvas");c.width=o,c.height=i;let d=c.getContext("2d");d==null||d.drawImage(Bt,0,0),u=Hr?Hr.fromPixels(c):null}else{let c=typeof OffscreenCanvas!="undefined"?new OffscreenCanvas(o,i):document.createElement("canvas");c.width=o,c.height=i;let d=c.getContext("2d");d==null||d.drawImage(Bt,0,0);let h=d==null?void 0:d.getImageData(0,0,o,i);u=Hr?Hr.fromPixels(h):null}if(u){let c=u.toFloat();n=c.expandDims(0),u.dispose(),c.dispose()}}let r=t.filter.return?Bt:null;return{tensor:n,canvas:r}}var y3={};e2(y3,{all:()=>uwe,body:()=>s_,canvas:()=>lwe,face:()=>r_,gesture:()=>n_,hand:()=>a_,object:()=>o_,options:()=>oo,person:()=>iwe});var oo={color:"rgba(173, 216, 230, 0.6)",labelColor:"rgba(173, 216, 230, 1)",shadowColor:"black",font:'small-caps 14px "Segoe 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s=r[2]||0;e.strokeStyle=n.useDepth&&s?`rgba(${127.5+2*s}, ${127.5-2*s}, 255, 0.3)`:n.color,e.fillStyle=n.useDepth&&s?`rgba(${127.5+2*s}, ${127.5-2*s}, 255, 0.3)`:n.color,e.lineTo(r[0],Math.round(r[1]))}e.stroke(),n.fillPolygons&&(e.closePath(),e.fill())}}function Nh(e,t=[],n){if(!(t===void 0||t.length===0)){if(!n.useCurves||t.length<=2){g3(e,t,n);return}e.moveTo(t[0][0],t[0][1]);for(let r=0;r1&&l[1].length>0){let u=i[1]>0?`#${i[1]}`:"",c=`${i[0]} ${u}: ${l[1]}`;r.shadowColor&&r.shadowColor!==""&&(s.fillStyle=r.shadowColor,s.fillText(c,8,2+a*r.lineHeight)),s.fillStyle=r.labelColor,s.fillText(c,6,0+a*r.lineHeight),a+=1}}}async function r_(e,t,n){var a,o,i,l;let r=ir(oo,n);if(!t||!e||!(e instanceof HTMLCanvasElement))return;let s=e.getContext("2d");if(!!s)for(let u of t){s.font=r.font,s.strokeStyle=r.color,s.fillStyle=r.color,r.drawBoxes&&Th(s,u.box[0],u.box[1],u.box[2],u.box[3],r);let c=[];if(c.push(`face: ${Math.trunc(100*u.score)}%`),u.genderScore&&c.push(`${u.gender||""} ${Math.trunc(100*u.genderScore)}%`),u.age&&c.push(`age: ${u.age||""}`),u.iris&&c.push(`distance: ${u.iris}`),u.emotion&&u.emotion.length>0){let d=u.emotion.map(h=>`${Math.trunc(100*h.score)}% ${h.emotion}`);d.length>3&&(d.length=3),c.push(d.join(" "))}u.rotation&&u.rotation.angle&&u.rotation.gaze&&(u.rotation.angle.roll&&c.push(`roll: ${b0(u.rotation.angle.roll)}\xB0 yaw:${b0(u.rotation.angle.yaw)}\xB0 pitch:${b0(u.rotation.angle.pitch)}\xB0`),u.rotation.gaze.bearing&&c.push(`gaze: ${b0(u.rotation.gaze.bearing)}\xB0`)),c.length===0&&c.push("face"),s.fillStyle=r.color;for(let d=c.length-1;d>=0;d--){let h=Math.max(u.box[0],0),p=d*r.lineHeight+u.box[1];r.shadowColor&&r.shadowColor!==""&&(s.fillStyle=r.shadowColor,s.fillText(c[d],h+5,p+16)),s.fillStyle=r.labelColor,s.fillText(c[d],h+4,p+15)}if(s.lineWidth=1,u.mesh&&u.mesh.length>0){if(r.drawPoints)for(let d of u.mesh)m3(s,d[0],d[1],d[2],r);if(r.drawPolygons){s.lineWidth=1;for(let d=0;du.mesh[p]);g3(s,h,r)}if(u.annotations&&u.annotations.leftEyeIris){s.strokeStyle=r.useDepth?"rgba(255, 200, 255, 0.3)":r.color,s.beginPath();let d=Math.abs(u.annotations.leftEyeIris[3][0]-u.annotations.leftEyeIris[1][0])/2,h=Math.abs(u.annotations.leftEyeIris[4][1]-u.annotations.leftEyeIris[2][1])/2;s.ellipse(u.annotations.leftEyeIris[0][0],u.annotations.leftEyeIris[0][1],d,h,0,0,2*Math.PI),s.stroke(),r.fillPolygons&&(s.fillStyle=r.useDepth?"rgba(255, 255, 200, 0.3)":r.color,s.fill())}if(u.annotations&&u.annotations.rightEyeIris){s.strokeStyle=r.useDepth?"rgba(255, 200, 255, 0.3)":r.color,s.beginPath();let d=Math.abs(u.annotations.rightEyeIris[3][0]-u.annotations.rightEyeIris[1][0])/2,h=Math.abs(u.annotations.rightEyeIris[4][1]-u.annotations.rightEyeIris[2][1])/2;s.ellipse(u.annotations.rightEyeIris[0][0],u.annotations.rightEyeIris[0][1],d,h,0,0,2*Math.PI),s.stroke(),r.fillPolygons&&(s.fillStyle=r.useDepth?"rgba(255, 255, 200, 0.3)":r.color,s.fill())}if(r.drawGaze&&((o=(a=u.rotation)==null?void 0:a.gaze)==null?void 0:o.strength)&&((l=(i=u.rotation)==null?void 0:i.gaze)==null?void 0:l.bearing)&&u.annotations.leftEyeIris&&u.annotations.rightEyeIris&&u.annotations.leftEyeIris[0]&&u.annotations.rightEyeIris[0]){s.strokeStyle="pink",s.beginPath();let d=[u.annotations.leftEyeIris[0][0]+Math.sin(u.rotation.gaze.bearing)*u.rotation.gaze.strength*u.box[3],u.annotations.leftEyeIris[0][1]+Math.cos(u.rotation.gaze.bearing)*u.rotation.gaze.strength*u.box[2]];s.moveTo(u.annotations.leftEyeIris[0][0],u.annotations.leftEyeIris[0][1]),s.lineTo(d[0],d[1]);let h=[u.annotations.rightEyeIris[0][0]+Math.sin(u.rotation.gaze.bearing)*u.rotation.gaze.strength*u.box[3],u.annotations.rightEyeIris[0][1]+Math.cos(u.rotation.gaze.bearing)*u.rotation.gaze.strength*u.box[2]];s.moveTo(u.annotations.rightEyeIris[0][0],u.annotations.rightEyeIris[0][1]),s.lineTo(h[0],h[1]),s.stroke()}}}}}async function s_(e,t,n){var a;let r=ir(oo,n);if(!t||!e||!(e instanceof HTMLCanvasElement))return;let s=e.getContext("2d");if(!!s){s.lineJoin="round";for(let o=0;ou.part==="leftShoulder"),i&&l.push([i.position[0],i.position[1]]),i=t[o].keypoints.find(u=>u.part==="rightShoulder"),i&&l.push([i.position[0],i.position[1]]),Nh(s,l,r),l.length=0,i=t[o].keypoints.find(u=>u.part==="rightShoulder"),i&&l.push([i.position[0],i.position[1]]),i=t[o].keypoints.find(u=>u.part==="rightHip"),i&&l.push([i.position[0],i.position[1]]),i=t[o].keypoints.find(u=>u.part==="leftHip"),i&&l.push([i.position[0],i.position[1]]),i=t[o].keypoints.find(u=>u.part==="leftShoulder"),i&&l.push([i.position[0],i.position[1]]),l.length===4&&g3(s,l,r),l.length=0,i=t[o].keypoints.find(u=>u.part==="leftHip"),i&&l.push([i.position[0],i.position[1]]),i=t[o].keypoints.find(u=>u.part==="leftKnee"),i&&l.push([i.position[0],i.position[1]]),i=t[o].keypoints.find(u=>u.part==="leftAnkle"),i&&l.push([i.position[0],i.position[1]]),i=t[o].keypoints.find(u=>u.part==="leftHeel"),i&&l.push([i.position[0],i.position[1]]),i=t[o].keypoints.find(u=>u.part==="leftFoot"),i&&l.push([i.position[0],i.position[1]]),Nh(s,l,r),l.length=0,i=t[o].keypoints.find(u=>u.part==="rightHip"),i&&l.push([i.position[0],i.position[1]]),i=t[o].keypoints.find(u=>u.part==="rightKnee"),i&&l.push([i.position[0],i.position[1]]),i=t[o].keypoints.find(u=>u.part==="rightAnkle"),i&&l.push([i.position[0],i.position[1]]),i=t[o].keypoints.find(u=>u.part==="rightHeel"),i&&l.push([i.position[0],i.position[1]]),i=t[o].keypoints.find(u=>u.part==="rightFoot"),i&&l.push([i.position[0],i.position[1]]),Nh(s,l,r),l.length=0,i=t[o].keypoints.find(u=>u.part==="leftShoulder"),i&&l.push([i.position[0],i.position[1]]),i=t[o].keypoints.find(u=>u.part==="leftElbow"),i&&l.push([i.position[0],i.position[1]]),i=t[o].keypoints.find(u=>u.part==="leftWrist"),i&&l.push([i.position[0],i.position[1]]),i=t[o].keypoints.find(u=>u.part==="leftPalm"),i&&l.push([i.position[0],i.position[1]]),Nh(s,l,r),l.length=0,i=t[o].keypoints.find(u=>u.part==="rightShoulder"),i&&l.push([i.position[0],i.position[1]]),i=t[o].keypoints.find(u=>u.part==="rightElbow"),i&&l.push([i.position[0],i.position[1]]),i=t[o].keypoints.find(u=>u.part==="rightWrist"),i&&l.push([i.position[0],i.position[1]]),i=t[o].keypoints.find(u=>u.part==="rightPalm"),i&&l.push([i.position[0],i.position[1]]),Nh(s,l,r)}}}}async function a_(e,t,n){let r=ir(oo,n);if(!t||!e||!(e instanceof HTMLCanvasElement))return;let s=e.getContext("2d");if(!!s){s.lineJoin="round",s.font=r.font;for(let a of t){if(r.drawBoxes&&(s.strokeStyle=r.color,s.fillStyle=r.color,Th(s,a.box[0],a.box[1],a.box[2],a.box[3],r),r.drawLabels&&(r.shadowColor&&r.shadowColor!==""&&(s.fillStyle=r.shadowColor,s.fillText("hand",a.box[0]+3,1+a.box[1]+r.lineHeight,a.box[2])),s.fillStyle=r.labelColor,s.fillText("hand",a.box[0]+2,0+a.box[1]+r.lineHeight,a.box[2])),s.stroke()),r.drawPoints&&a.keypoints&&a.keypoints.length>0)for(let o of a.keypoints)s.fillStyle=r.useDepth?`rgba(${127.5+2*o[2]}, ${127.5-2*o[2]}, 255, 0.5)`:r.color,m3(s,o[0],o[1],0,r);if(r.drawLabels){let o=(i,l)=>{s.fillStyle=r.useDepth?`rgba(${127.5+2*i[i.length-1][2]}, ${127.5-2*i[i.length-1][2]}, 255, 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R=Math.min(...C),N=Math.min(...M);T.box=[R,N,Math.max(...C)-R,Math.max(...M)-N],s&&s.length===4&&(T.boxRaw=[T.box[0]/s[2],T.box[1]/s[1],T.box[2]/s[2],T.box[3]/s[1]]),o.push(T)}return o}var Be={face:[],body:[],hand:[],gesture:[],object:[],persons:[],performance:{},timestamp:0};function l_(e){var s,a,o,i,l,u,c,d,h,p,f,m,g,y,A,x,b,v,w,I,T;let t=Date.now()-e.timestamp,n=t<1e3?8-Math.log(t):1;if(Be.canvas=e.canvas,!Be.body||e.body.length!==Be.body.length)Be.body=JSON.parse(JSON.stringify(e.body));else for(let C=0;C((n-1)*Be.body[C].box[F]+N)/n),$=e.body[C].boxRaw.map((N,F)=>((n-1)*Be.body[C].boxRaw[F]+N)/n),R=e.body[C].keypoints.map((N,F)=>({score:N.score,part:N.part,position:[Be.body[C].keypoints[F]?((n-1)*Be.body[C].keypoints[F].position[0]+N.position[0])/n:N.position[0],Be.body[C].keypoints[F]?((n-1)*Be.body[C].keypoints[F].position[1]+N.position[1])/n:N.position[1]],positionRaw:[Be.body[C].keypoints[F]?((n-1)*Be.body[C].keypoints[F].positionRaw[0]+N.positionRaw[0])/n:N.position[0],Be.body[C].keypoints[F]?((n-1)*Be.body[C].keypoints[F].positionRaw[1]+N.positionRaw[1])/n:N.position[1]]}));Be.body[C]={...e.body[C],box:M,boxRaw:$,keypoints:R}}if(!Be.hand||e.hand.length!==Be.hand.length)Be.hand=JSON.parse(JSON.stringify(e.hand));else for(let C=0;C((n-1)*Be.hand[C].box[j]+B)/n),$=e.hand[C].boxRaw.map((B,j)=>((n-1)*Be.hand[C].boxRaw[j]+B)/n),R=e.hand[C].keypoints.map((B,j)=>B.map((X,Y)=>((n-1)*Be.hand[C].keypoints[j][Y]+X)/n)),N=Object.keys(e.hand[C].annotations),F={};for(let B of N)F[B]=e.hand[C].annotations[B].map((j,X)=>j.map((Y,ee)=>((n-1)*Be.hand[C].annotations[B][X][ee]+Y)/n));Be.hand[C]={...e.hand[C],box:M,boxRaw:$,keypoints:R,annotations:F}}if(!Be.face||e.face.length!==Be.face.length)Be.face=JSON.parse(JSON.stringify(e.face));else for(let C=0;C((n-1)*Be.face[C].box[F]+N)/n),$=e.face[C].boxRaw.map((N,F)=>((n-1)*Be.face[C].boxRaw[F]+N)/n),R={matrix:[0,0,0,0,0,0,0,0,0],angle:{roll:0,yaw:0,pitch:0},gaze:{bearing:0,strength:0}};R.matrix=(s=e.face[C].rotation)==null?void 0:s.matrix,R.angle={roll:((n-1)*(((o=(a=Be.face[C].rotation)==null?void 0:a.angle)==null?void 0:o.roll)||0)+(((l=(i=e.face[C].rotation)==null?void 0:i.angle)==null?void 0:l.roll)||0))/n,yaw:((n-1)*(((c=(u=Be.face[C].rotation)==null?void 0:u.angle)==null?void 0:c.yaw)||0)+(((h=(d=e.face[C].rotation)==null?void 0:d.angle)==null?void 0:h.yaw)||0))/n,pitch:((n-1)*(((f=(p=Be.face[C].rotation)==null?void 0:p.angle)==null?void 0:f.pitch)||0)+(((g=(m=e.face[C].rotation)==null?void 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OffscreenCanvas(t,n):document.createElement("canvas");u.width=t,u.height=n;let c=u.getContext("2d");c.filter="blur(8px",await c.drawImage(l,0,0);let d=c.getImageData(0,0,t,n).data,h=typeof OffscreenCanvas!="undefined"?new OffscreenCanvas(t,n):document.createElement("canvas");h.width=t,h.height=n;let p=h.getContext("2d");return e.canvas&&await p.drawImage(e.canvas,0,0),p.globalCompositeOperation="darken",p.filter="blur(8px)",await p.drawImage(l,0,0),p.globalCompositeOperation="source-over",p.filter="none",e.canvas=h,d}async function u_(e,t,n){var a;if(A3)return null;A3=!0,Wr||await v0(n);let r=wi(e,n),s=await x3(r);if(Ve(r.tensor),t&&s){let o=wi(t,n),i=o.canvas;Ve(o.tensor);let l=r.canvas,u=(a=l.getContext("2d"))==null?void 0:a.getImageData(0,0,l.width,l.height).data,c=typeof OffscreenCanvas!="undefined"?new OffscreenCanvas(l.width,l.height):document.createElement("canvas");c.width=l.width,c.height=l.height;let d=c.getContext("2d");d.globalCompositeOperation="copy",d.drawImage(i,0,0,c.width,c.height);let h=d.getImageData(0,0,c.width,c.height);for(let p=0;p{if(!Fn(this,Ch))return;let n=this.tf.engine().state.numTensors,r=Fn(this,Du);Qr(this,Du,n);let s=n-r;s!==0&&me(...t,s)};Ir(this,I0,t=>{if(!Fn(this,Eh))return null;if(!t)return"input is not defined";if(this.tf.ENV.flags.IS_NODE&&!(t instanceof Tt))return"input must be a tensor";try{this.tf.getBackend()}catch(n){return"backend not loaded"}return null});Ir(this,$h,async(t=!1)=>{var n;if(this.config.backend&&this.config.backend.length>0&&t||this.tf.getBackend()!==this.config.backend){let r=at();if(this.state="backend",this.config.backend&&this.config.backend.length>0){if(typeof window=="undefined"&&typeof WorkerGlobalScope!="undefined"&&this.config.debug&&me("running inside web 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backend:",this.config.backend,s)}}if(this.tf.enableProdMode(),this.tf.getBackend()==="webgl"||this.tf.getBackend()==="humangl"){this.tf.ENV.set("CHECK_COMPUTATION_FOR_ERRORS",!1),this.tf.ENV.set("WEBGL_CPU_FORWARD",!0),this.tf.ENV.set("WEBGL_PACK_DEPTHWISECONV",!0),typeof this.config.deallocate!="undefined"&&this.config.deallocate&&(me("changing webgl: WEBGL_DELETE_TEXTURE_THRESHOLD:",!0),this.tf.ENV.set("WEBGL_DELETE_TEXTURE_THRESHOLD",0));let s=await this.tf.backend().getGPGPUContext().gl;this.config.debug&&me(`gl version:${s.getParameter(s.VERSION)} renderer:${s.getParameter(s.RENDERER)}`)}await this.tf.ready(),this.performance.backend=Math.trunc(at()-r)}});this.next=t=>l_(t||this.result);Ir(this,S0,async t=>{if(this.config.cacheSensitivity===0)return!1;let n=32,r=t.resizeBilinear([Math.trunc(t.shape[1]/n),Math.trunc(t.shape[2]/n)]),s=r.dataSync(),a=0;for(let l=0;l10*this.config.cacheSensitivity?0:o),i});Ir(this,T0,async()=>{let t=(s,a="application/octet-stream")=>fetch(`data:${a};base64,${s}`).then(o=>o.blob()),n,r;switch(this.config.warmup){case"face":n=await t(w0);break;case"full":n=await t(k0);break;default:n=null}if(n){let s=await createImageBitmap(n);r=await this.detect(s,this.config),s.close()}return r});Ir(this,N0,async()=>new Promise(t=>{let n,r=0;switch(this.config.warmup){case"face":r=256,n="data:image/jpeg;base64,"+w0;break;case"full":case"body":r=1200,n="data:image/jpeg;base64,"+k0;break;default:n=null}let s=new Image;s.onload=async()=>{let a=typeof OffscreenCanvas!="undefined"?new OffscreenCanvas(r,r):document.createElement("canvas");a.width=s.naturalWidth,a.height=s.naturalHeight;let o=a.getContext("2d");o==null||o.drawImage(s,0,0);let i=await this.detect(a,this.config);t(i)},n?s.src=n:t(null)}));Ir(this,C0,async()=>{let t=s=>Buffer.from(s,"base64"),n;if(this.config.warmup==="face"&&(n=t(w0)),(this.config.warmup==="body"||this.config.warmup==="full")&&(n=t(k0)),!n)return null;let r;if(typeof void 0!="undefined"){let s=(void 0).decodeJpeg(n),a=s.expandDims(0);this.tf.dispose(s),r=await this.detect(a,this.config),this.tf.dispose(a)}else this.config.debug&&me("Warmup tfjs-node not loaded");return r});this.config=ir(D3,t||{}),this.tf=bh,this.draw=y3,this.version=c_,this.state="idle",Qr(this,Du,0),Qr(this,Ch,!1),Qr(this,Eh,!1),Qr(this,ki,!0),Qr(this,Fu,0),this.performance={backend:0,load:0,image:0,frames:0,cached:0,changed:0,total:0,draw:0},this.models={face:null,posenet:null,blazepose:null,efficientpose:null,movenet:null,handpose:null,age:null,gender:null,emotion:null,embedding:null,nanodet:null,centernet:null,faceres:null,segmentation:null},this.image=n=>wi(n,this.config),this.faceTriangulation=I$,this.faceUVMap=S$,this.sysinfo=F3(),Qr(this,Ii,1)}similarity(t,n){return Fb(t,n)}segmentation(t,n){return u_(t,n,this.config)}enhance(t){return Mb(t)}match(t,n,r=0){return C$(t,n,r)}async load(t){this.state="load";let n=at();t&&(this.config=ir(this.config,t)),Fn(this,ki)&&(this.config.debug&&me(`version: ${this.version}`),this.config.debug&&me(`tfjs version: ${this.tf.version_core}`),this.config.debug&&me("platform:",this.sysinfo.platform),this.config.debug&&me("agent:",this.sysinfo.agent),await Fn(this,$h).call(this,!0),this.tf.ENV.flags.IS_BROWSER&&(this.config.debug&&me("configuration:",this.config),this.config.debug&&me("tf flags:",this.tf.ENV.flags))),this.config.async?[this.models.face,this.models.emotion,this.models.handpose,this.models.posenet,this.models.blazepose,this.models.efficientpose,this.models.movenet,this.models.nanodet,this.models.centernet,this.models.faceres,this.models.segmentation]=await Promise.all([this.models.face||(this.config.face.enabled?Nb(this.config):null),this.models.emotion||(this.config.face.enabled&&this.config.face.emotion.enabled?$b(this.config):null),this.models.handpose||(this.config.hand.enabled?Zb(this.config):null),this.models.posenet||(this.config.body.enabled&&this.config.body.modelPath.includes("posenet")?Hb(this.config):null),this.models.blazepose||(this.config.body.enabled&&this.config.body.modelPath.includes("blazepose")?g0(this.config):null),this.models.efficientpose||(this.config.body.enabled&&this.config.body.modelPath.includes("efficientpose")?Z$(this.config):null),this.models.movenet||(this.config.body.enabled&&this.config.body.modelPath.includes("movenet")?a3(this.config):null),this.models.nanodet||(this.config.object.enabled&&this.config.object.modelPath.includes("nanodet")?u3(this.config):null),this.models.centernet||(this.config.object.enabled&&this.config.object.modelPath.includes("centernet")?p3(this.config):null),this.models.faceres||(this.config.face.enabled&&this.config.face.description.enabled?Db(this.config):null),this.models.segmentation||(this.config.segmentation.enabled?v0(this.config):null)]):(this.config.face.enabled&&!this.models.face&&(this.models.face=await Nb(this.config)),this.config.face.enabled&&this.config.face.emotion.enabled&&!this.models.emotion&&(this.models.emotion=await $b(this.config)),this.config.hand.enabled&&!this.models.handpose&&(this.models.handpose=await Zb(this.config)),this.config.body.enabled&&!this.models.posenet&&this.config.body.modelPath.includes("posenet")&&(this.models.posenet=await Hb(this.config)),this.config.body.enabled&&!this.models.blazepose&&this.config.body.modelPath.includes("blazepose")&&(this.models.blazepose=await g0(this.config)),this.config.body.enabled&&!this.models.efficientpose&&this.config.body.modelPath.includes("efficientpose")&&(this.models.efficientpose=await g0(this.config)),this.config.body.enabled&&!this.models.movenet&&this.config.body.modelPath.includes("movenet")&&(this.models.movenet=await a3(this.config)),this.config.object.enabled&&!this.models.nanodet&&this.config.object.modelPath.includes("nanodet")&&(this.models.nanodet=await u3(this.config)),this.config.object.enabled&&!this.models.centernet&&this.config.object.modelPath.includes("centernet")&&(this.models.centernet=await p3(this.config)),this.config.face.enabled&&this.config.face.description.enabled&&!this.models.faceres&&(this.models.faceres=await Db(this.config)),this.config.segmentation.enabled&&!this.models.segmentation&&(this.models.segmentation=await v0(this.config))),Fn(this,ki)&&(this.config.debug&&me("tf engine state:",this.tf.engine().state.numBytes,"bytes",this.tf.engine().state.numTensors,"tensors"),Qr(this,ki,!1));let r=Math.trunc(at()-n);r>(this.performance.load||0)&&(this.performance.load=r)}async detect(t,n){return new Promise(async r=>{this.state="config";let s,a;this.config=ir(this.config,n),this.state="check";let o=Fn(this,I0).call(this,t);o&&(me(o,t),r({error:o}));let i=at();await Fn(this,$h).call(this),await this.load(),s=at();let l=wi(t,this.config);if(this.performance.image=Math.trunc(at()-s),this.analyze("Get Image:"),this.config.segmentation.enabled&&l&&l.tensor&&(this.analyze("Start Segmentation:"),this.state="run:segmentation",s=at(),await x3(l),a=Math.trunc(at()-s),a>0&&(this.performance.segmentation=a),l.canvas&&(l.tensor.dispose(),l=wi(l.canvas,this.config)),this.analyze("End Segmentation:")),!l||!l.tensor){me("could not convert input to tensor"),r({error:"could not convert input to tensor"});return}s=at(),this.config.skipFrame=await Fn(this,S0).call(this,l.tensor),this.performance.frames||(this.performance.frames=0),this.performance.cached||(this.performance.cached=0),this.performance.frames++,this.config.skipFrame&&this.performance.cached++,this.performance.changed=Math.trunc(at()-s),this.analyze("Check Changed:");let u,c,d,h;this.config.async?(u=this.config.face.enabled?Pb(this,l.tensor):[],this.performance.face&&delete this.performance.face):(this.state="run:face",s=at(),u=this.config.face.enabled?await Pb(this,l.tensor):[],a=Math.trunc(at()-s),a>0&&(this.performance.face=a)),this.analyze("Start Body:"),this.config.async?(this.config.body.modelPath.includes("posenet")?c=this.config.body.enabled?Ub(l.tensor,this.config):[]:this.config.body.modelPath.includes("blazepose")?c=this.config.body.enabled?Yb(l.tensor,this.config):[]:this.config.body.modelPath.includes("efficientpose")?c=this.config.body.enabled?t3(l.tensor,this.config):[]:this.config.body.modelPath.includes("movenet")&&(c=this.config.body.enabled?o3(l.tensor,this.config):[]),this.performance.body&&delete this.performance.body):(this.state="run:body",s=at(),this.config.body.modelPath.includes("posenet")?c=this.config.body.enabled?await Ub(l.tensor,this.config):[]:this.config.body.modelPath.includes("blazepose")?c=this.config.body.enabled?await Yb(l.tensor,this.config):[]:this.config.body.modelPath.includes("efficientpose")?c=this.config.body.enabled?await t3(l.tensor,this.config):[]:this.config.body.modelPath.includes("movenet")&&(c=this.config.body.enabled?await o3(l.tensor,this.config):[]),a=Math.trunc(at()-s),a>0&&(this.performance.body=a)),this.analyze("End Body:"),this.analyze("Start Hand:"),this.config.async?(d=this.config.hand.enabled?Xb(l.tensor,this.config):[],this.performance.hand&&delete this.performance.hand):(this.state="run:hand",s=at(),d=this.config.hand.enabled?await Xb(l.tensor,this.config):[],a=Math.trunc(at()-s),a>0&&(this.performance.hand=a)),this.analyze("End Hand:"),this.analyze("Start Object:"),this.config.async?(this.config.object.modelPath.includes("nanodet")?h=this.config.object.enabled?c3(l.tensor,this.config):[]:this.config.object.modelPath.includes("centernet")&&(h=this.config.object.enabled?f3(l.tensor,this.config):[]),this.performance.object&&delete this.performance.object):(this.state="run:object",s=at(),this.config.object.modelPath.includes("nanodet")?h=this.config.object.enabled?await c3(l.tensor,this.config):[]:this.config.object.modelPath.includes("centernet")&&(h=this.config.object.enabled?await f3(l.tensor,this.config):[]),a=Math.trunc(at()-s),a>0&&(this.performance.object=a)),this.analyze("End Object:"),this.config.async&&([u,c,d,h]=await Promise.all([u,c,d,h]));let p=[];this.config.gesture.enabled&&(s=at(),p=[...J$(u),...Y$(c),...e_(d),...Q$(u)],this.config.async?this.performance.gesture&&delete this.performance.gesture:this.performance.gesture=Math.trunc(at()-s)),this.performance.total=Math.trunc(at()-i),this.state="idle",this.result={face:u,body:c,hand:d,gesture:p,object:h,performance:this.performance,canvas:l.canvas,timestamp:Date.now(),get persons(){var f;return i_(u,c,d,p,(f=l==null?void 0:l.tensor)==null?void 0:f.shape)}},Ve(l.tensor),r(this.result)})}async warmup(t){let n=at();if(t&&(this.config=ir(this.config,t)),!this.config.warmup||this.config.warmup==="none")return{error:"null"};let r;typeof createImageBitmap=="function"?r=await Fn(this,T0).call(this):typeof Image!="undefined"?r=await Fn(this,N0).call(this):r=await Fn(this,C0).call(this);let s=at();return this.config.debug&&me("Warmup",this.config.warmup,Math.round(s-n),"ms",r),r}};Du=new WeakMap,Ch=new WeakMap,Eh=new WeakMap,ki=new WeakMap,Ii=new WeakMap,Fu=new WeakMap,I0=new WeakMap,$h=new WeakMap,S0=new WeakMap,T0=new WeakMap,N0=new WeakMap,C0=new WeakMap;return dwe;})(); /** * @license * Copyright 2017 Google LLC. All Rights Reserved. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ============================================================================= */ /** * @license * Copyright 2018 Google LLC * * Use of this source code is governed by an MIT-style * license that can be found in the LICENSE file or at * https://opensource.org/licenses/MIT. * ============================================================================= */ /** * @license * Copyright 2018 Google LLC. All Rights Reserved. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * * ============================================================================= */ /** * @license * Copyright 2018 Google LLC. All Rights Reserved. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ============================================================================= */ /** * @license * Copyright 2019 Google LLC * * Use of this source code is governed by an MIT-style * license that can be found in the LICENSE file or at * https://opensource.org/licenses/MIT. * ============================================================================= */ /** * @license * Copyright 2019 Google LLC. All Rights Reserved. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * * ============================================================================= */ /** * @license * Copyright 2019 Google LLC. All Rights Reserved. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ============================================================================= */ /** * @license * Copyright 2020 Google Inc. All Rights Reserved. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ============================================================================= */ /** * @license * Copyright 2020 Google LLC * * Use of this source code is governed by an MIT-style * license that can be found in the LICENSE file or at * https://opensource.org/licenses/MIT. * ============================================================================= */ /** * @license * Copyright 2020 Google LLC. All Rights Reserved. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ============================================================================= */ /** * @license * Copyright 2020 Google LLC. All Rights Reserved. * Licensed under the Apache License, Version 2.0 (the License); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an AS IS BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ============================================================================= */ /** * @license * Copyright 2021 Google LLC. All Rights Reserved. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ============================================================================= */ /** * @license * Copyright 2021 Google LLC. All Rights Reserved. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * https://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ============================================================================= */ /** * @license * Copyright 2018 Google LLC. All Rights Reserved. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ============================================================================= */ /** @license See the LICENSE file. */