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this.throwIfDisposed(),K.greaterStrict(this,t)},o.prototype.greaterEqual=function(t){return this.throwIfDisposed(),K.greaterEqual(this,t)},o.prototype.greaterEqualStrict=function(t){return this.throwIfDisposed(),K.greaterEqualStrict(this,t)},o.prototype.logicalAnd=function(t){return this.throwIfDisposed(),K.logicalAnd(this,t)},o.prototype.logicalOr=function(t){return this.throwIfDisposed(),K.logicalOr(this,t)},o.prototype.logicalNot=function(){return this.throwIfDisposed(),K.logicalNot(this)},o.prototype.logicalXor=function(t){return this.throwIfDisposed(),K.logicalXor(this,t)},o.prototype.where=function(t,e){return this.throwIfDisposed(),K.where(t,this,e)},o.prototype.neg=function(){return this.throwIfDisposed(),K.neg(this)},o.prototype.ceil=function(){return this.throwIfDisposed(),K.ceil(this)},o.prototype.floor=function(){return this.throwIfDisposed(),K.floor(this)},o.prototype.sign=function(){return this.throwIfDisposed(),K.sign(this)},o.prototype.exp=function(){return this.throwIfDisposed(),K.exp(this)},o.prototype.expm1=function(){return this.throwIfDisposed(),K.expm1(this)},o.prototype.log=function(){return this.throwIfDisposed(),K.log(this)},o.prototype.log1p=function(){return this.throwIfDisposed(),K.log1p(this)},o.prototype.sqrt=function(){return this.throwIfDisposed(),K.sqrt(this)},o.prototype.rsqrt=function(){return this.throwIfDisposed(),K.rsqrt(this)},o.prototype.square=function(){return this.throwIfDisposed(),K.square(this)},o.prototype.reciprocal=function(){return this.throwIfDisposed(),K.reciprocal(this)},o.prototype.abs=function(){return this.throwIfDisposed(),K.abs(this)},o.prototype.clipByValue=function(t,e){return this.throwIfDisposed(),K.clipByValue(this,t,e)},o.prototype.relu=function(){return this.throwIfDisposed(),K.relu(this)},o.prototype.elu=function(){return this.throwIfDisposed(),K.elu(this)},o.prototype.selu=function(){return this.throwIfDisposed(),K.selu(this)},o.prototype.leakyRelu=function(t){return void 0===t&&(t=.2),this.throwIfDisposed(),K.leakyRelu(this,t)},o.prototype.prelu=function(t){return this.throwIfDisposed(),K.prelu(this,t)},o.prototype.sigmoid=function(){return this.throwIfDisposed(),K.sigmoid(this)},o.prototype.logSigmoid=function(){return this.throwIfDisposed(),K.logSigmoid(this)},o.prototype.softplus=function(){return this.throwIfDisposed(),K.softplus(this)},o.prototype.zerosLike=function(){return this.throwIfDisposed(),K.zerosLike(this)},o.prototype.onesLike=function(){return this.throwIfDisposed(),K.onesLike(this)},o.prototype.sin=function(){return this.throwIfDisposed(),K.sin(this)},o.prototype.cos=function(){return this.throwIfDisposed(),K.cos(this)},o.prototype.tan=function(){return this.throwIfDisposed(),K.tan(this)},o.prototype.asin=function(){return this.throwIfDisposed(),K.asin(this)},o.prototype.acos=function(){return this.throwIfDisposed(),K.acos(this)},o.prototype.atan=function(){return this.throwIfDisposed(),K.atan(this)},o.prototype.sinh=function(){return this.throwIfDisposed(),K.sinh(this)},o.prototype.cosh=function(){return this.throwIfDisposed(),K.cosh(this)},o.prototype.tanh=function(){return this.throwIfDisposed(),K.tanh(this)},o.prototype.asinh=function(){return this.throwIfDisposed(),K.asinh(this)},o.prototype.acosh=function(){return this.throwIfDisposed(),K.acosh(this)},o.prototype.atanh=function(){return this.throwIfDisposed(),K.atanh(this)},o.prototype.erf=function(){return this.throwIfDisposed(),K.erf(this)},o.prototype.round=function(){return this.throwIfDisposed(),K.round(this)},o.prototype.step=function(t){return void 0===t&&(t=0),this.throwIfDisposed(),K.step(this,t)},o.prototype.softmax=function(t){return void 0===t&&(t=-1),this.throwIfDisposed(),K.softmax(this,t)},o.prototype.resizeBilinear=function(t,e){return void 0===e&&(e=!1),this.throwIfDisposed(),K.image.resizeBilinear(this,t,e)},o.prototype.resizeNearestNeighbor=function(t,e){return void 0===e&&(e=!1),this.throwIfDisposed(),K.image.resizeNearestNeighbor(this,t,e)},o.prototype.conv1d=function(t,e,n,r,o,i){return void 0===r&&(r="NWC"),void 0===o&&(o=1),this.throwIfDisposed(),K.conv1d(this,t,e,n,r,o,i)},o.prototype.conv2d=function(t,e,n,r,o,i){return void 0===r&&(r="NHWC"),void 0===o&&(o=[1,1]),this.throwIfDisposed(),K.conv2d(this,t,e,n,r,o,i)},o.prototype.conv2dTranspose=function(t,e,n,r,o){return this.throwIfDisposed(),K.conv2dTranspose(this,t,e,n,r,o)},o.prototype.depthwiseConv2D=function(t,e,n,r,o,i){return void 0===r&&(r="NHWC"),void 0===o&&(o=[1,1]),this.throwIfDisposed(),K.depthwiseConv2d(this,t,e,n,r,o,i)},o.prototype.separableConv2d=function(t,e,n,r,o,i){return void 0===o&&(o=[1,1]),void 0===i&&(i="NHWC"),this.throwIfDisposed(),K.separableConv2d(this,t,e,n,r,o,i)},o.prototype.avgPool=function(t,e,n,r){return this.throwIfDisposed(),K.avgPool(this,t,e,n,r)},o.prototype.maxPool=function(t,e,n,r){return this.throwIfDisposed(),K.maxPool(this,t,e,n,r)},o.prototype.localResponseNormalization=function(t,e,n,r){return void 0===t&&(t=5),void 0===e&&(e=1),void 0===n&&(n=1),void 0===r&&(r=.5),K.localResponseNormalization(this,t,e,n,r)},o.prototype.pool=function(t,e,n,r,o){return this.throwIfDisposed(),K.pool(this,t,e,n,r,o)},o.prototype.variable=function(t,e,n){return void 0===t&&(t=!0),this.throwIfDisposed(),Q.variable(this,t,e,n)},o.prototype.unsortedSegmentSum=function(t,e){return this.throwIfDisposed(),K.unsortedSegmentSum(this,t,e)},o.prototype.batchToSpaceND=function(t,e){return this.throwIfDisposed(),K.batchToSpaceND(this,t,e)},o.prototype.spaceToBatchND=function(t,e){return this.throwIfDisposed(),K.spaceToBatchND(this,t,e)},o.prototype.topk=function(t,e){return void 0===t&&(t=1),void 0===e&&(e=!0),this.throwIfDisposed(),K.topk(this,t,e)},o.prototype.stridedSlice=function(t,e,n,r,o){return void 0===r&&(r=0),void 0===o&&(o=0),this.throwIfDisposed(),K.stridedSlice(this,t,e,n,r,o)},o.prototype.depthToSpace=function(t,e){return this.throwIfDisposed(),K.depthToSpace(this,t,e)},o.prototype.fft=function(){return this.throwIfDisposed(),K.spectral.fft(this)},o.nextId=0,o}();Object.defineProperty(Y,Symbol.hasInstance,{value:function(t){return!!t&&null!=t.shape&&null!=t.dtype}});var Q=function(o){function i(t,e,n){void 0===e&&(e=!0);var r=o.call(this,t.shape,t.dtype,null,t.dataId)||this;r.trainable=e,r.name=n,null==r.name&&(r.name=i.nextVarId.toString(),i.nextVarId++);try{$().registerVariable(r)}catch(t){throw $().disposeTensor(r),t}return r}return s(i,o),i.variable=function(t,e,n,r){return void 0===e&&(e=!0),null!=r&&r!==t.dtype&&(t=t.asType(r)),new i(t,e,n)},i.prototype.assign=function(t){if(t.dtype!==this.dtype)throw new Error("dtype of the new value ("+t.dtype+") and previous value ("+this.dtype+") must match");if(!T(t.shape,this.shape))throw new Error("shape of the new value ("+t.shape+") and previous value ("+this.shape+") must match");$().disposeTensor(this),this.dataId=t.dataId,$().registerTensor(this)},i.nextVarId=0,i}(Y);Object.defineProperty(Q,Symbol.hasInstance,{value:function(t){return t instanceof Y&&null!=t.assign&&t.assign instanceof Function}});var J=Q.variable;function Z(t,e){D(t.dtype===e.dtype,"The dtypes of the first("+t.dtype+") and second("+e.dtype+") input must match")}function tt(t){var e=[];return function t(e,n,r){if(null!=e)if(e instanceof Y)n.push(e);else if(s=e,Array.isArray(s)||"object"==typeof s){var o=e;for(var i in o){var a=o[i];r.has(a)||(r.add(a),t(a,n,r))}}var s}(t,e,new Set),e}var et,nt,rt=function(){function t(t,e,n){this.backend=t,this.safeMode=e,this.debugMode=n,this.registeredVariables={},this.nextTapeNodeId=0,this.numBytes=0,this.numTensors=0,this.numDataBuffers=0,this.profiling=!1,this.gradientScopeCount=0,this.customGradientDepth=0,this.keepTensors=new Set,this.tensorInfo=new WeakMap,this.activeScope={track:[],name:"default scope"},this.scopeStack=[this.activeScope],this.profiler=new z(t),this.activeProfile={newBytes:0,newTensors:0,peakBytes:0,kernels:[],result:null}}return t.prototype.moveData=function(t){this.write(t,this.readSync(t))},t.prototype.tidy=function(t,e,n){var r=this;void 0===n&&(n=!1);var o,i=null;if(null==e){if("function"!=typeof t)throw new Error("Please provide a function to tidy()");e=t}else{if("string"!=typeof t&&!(t instanceof String))throw new Error("When calling with two arguments, the first argument to tidy() must be a string");if("function"!=typeof e)throw new Error("When calling with two arguments, the 2nd argument to tidy() must be a function");i=t}return this.scopedRun(function(){return r.startScope(i,n)},function(){return r.endScope(o,n)},function(){return(o=e())instanceof Promise&&console.error("Cannot return a Promise inside of tidy."),o})},t.prototype.scopedRun=function(t,e,n){t();try{var r=n();return e(),r}catch(t){throw e(),t}},t.prototype.runKernel=function(t,e,n){var r,o=this,i=[],a=function(t){return i.push(t),t},s=this.activeScope.name,u=this.numBytes,c=this.numTensors;if(this.scopedRun(function(){return o.customGradientDepth++},function(){return o.customGradientDepth--},function(){r=o.debugMode()?o.profiler.profileKernel(s,function(){return t(o.backend,a)}):t(o.backend,a)}),this.shouldRecord()){var l={id:this.nextTapeNodeId++,name:s,inputs:e,outputs:Array.isArray(r)?r:[r]};null!=n&&(l.gradient=function(t){return n(t,i)}),this.activeTape.push(l)}return this.profiling&&this.activeProfile.kernels.push({name:s,bytesAdded:this.numBytes-u,totalBytesSnapshot:this.numBytes,tensorsAdded:this.numTensors-c,totalTensorsSnapshot:this.numTensors,inputShapes:Object.keys(e).map(function(t){return e[t].shape}),outputShape:Array.isArray(r)?r.map(function(t){return t.shape}):r.shape}),r},t.prototype.registerTensor=function(t){var e=this.tensorInfo.has(t.dataId)?this.tensorInfo.get(t.dataId).refCount:0;this.numTensors++,0===e&&(this.numDataBuffers++,"complex64"!==t.dtype&&(this.numBytes+=B(t.shape)*R(t.dtype)),this.tensorInfo.set(t.dataId,{backend:this.backend,dtype:t.dtype,shape:t.shape,refCount:0}),this.backend.register(t.dataId,t.shape,t.dtype)),this.tensorInfo.get(t.dataId).refCount++,t instanceof Q||this.track(t)},t.prototype.registerVariable=function(t){if(null!=this.registeredVariables[t.name])throw new Error("Variable with name "+t.name+" was already registered");this.registeredVariables[t.name]=t},t.prototype.disposeTensor=function(t){this.tensorInfo.has(t.dataId)&&(this.keepTensors.has(t.id)&&this.keepTensors.delete(t.id),this.numTensors--,this.tensorInfo.get(t.dataId).refCount<=1?(this.tensorInfo.get(t.dataId).backend.disposeData(t.dataId),this.numDataBuffers--,"complex64"!==t.dtype&&(this.numBytes-=B(t.shape)*R(t.dtype)),this.tensorInfo.delete(t.dataId)):this.tensorInfo.get(t.dataId).refCount--)},t.prototype.disposeVariables=function(){for(var t in this.registeredVariables){var e=this.registeredVariables[t];this.disposeTensor(e),delete this.registeredVariables[t]}},t.prototype.memory=function(){var t=this.backend.memory();return t.numTensors=this.numTensors,t.numDataBuffers=this.numDataBuffers,t.numBytes=this.numBytes,t},t.prototype.profile=function(r){return m(this,void 0,void 0,function(){var e,n;return S(this,function(t){return this.profiling=!0,e=this.numBytes,n=this.numTensors,this.activeProfile.kernels=[],this.activeProfile.result=r(),this.profiling=!1,this.activeProfile.peakBytes=Math.max.apply(Math,this.activeProfile.kernels.map(function(t){return t.totalBytesSnapshot})),this.activeProfile.newBytes=this.numBytes-e,this.activeProfile.newTensors=this.numTensors-n,[2,this.activeProfile]})})},t.prototype.shouldRecord=function(){return null!=this.activeTape&&0===this.customGradientDepth},t.prototype.addTapeNode=function(t,e,r){var n={};t.forEach(function(t,e){n[e]=t});var o={id:this.nextTapeNodeId++,name:this.activeScope.name,inputs:n,outputs:[e],gradient:function(t){var n={};return r(t).forEach(function(t,e){n[e]=function(){return t}}),n}};this.activeTape.push(o)},t.prototype.keep=function(t){if(1===this.scopeStack.length&&this.safeMode)throw new Error("Safe mode is ON. Enclose all tensor operations inside tf.tidy(): tf.tidy(() => {...}) to avoid memory leaks.");return this.keepTensors.add(t.id),t},t.prototype.startScope=function(t,e){void 0===e&&(e=!1),e&&0===this.gradientScopeCount&&(this.activeTape=[]),e&&this.gradientScopeCount++;var n={track:[],name:"unnamed scope"};t&&(n.name=t),this.scopeStack.push(n),this.activeScope=n},t.prototype.endScope=function(t,e){var n=this;void 0===e&&(e=!1),e&&(this.gradientScopeCount--,0===this.gradientScopeCount&&(this.activeTape=null));var r=new Set(this.keepTensors),o=tt(t);o.forEach(function(t){return r.add(t.id)});for(var i=0;i<this.activeScope.track.length;i++){var a=this.activeScope.track[i];r.has(a.id)||(null!=this.activeTape?o.push(a):a.dispose())}var s=this.scopeStack.pop();this.activeScope=0===this.scopeStack.length?{track:[],name:"default scope"}:this.scopeStack[this.scopeStack.length-1],o.forEach(function(t){!n.keepTensors.has(t.id)&&function(t,e){for(var n=0;n<e.length;n++)if(e[n].id===t.id)return!0;return!1}(t,s.track)&&n.track(t)})},t.prototype.gradients=function(i,a,s,u){var c=this;return void 0===u&&(u=!1),D(0<a.length,"gradients() received an empty list of xs."),this.tidy("gradients",function(){var t=i();D(t instanceof Y,"The result y returned by f() must be a tensor.");var e=function(t,e,n){for(var r={},o={},i=0;i<e.length;i++)r[e[i].id]=!0;for(i=0;i<t.length;i++){var a=(d=t[i]).inputs;for(var s in a){for(var u=a[s],c=!1,l=0;l<e.length;l++)if(r[u.id]){d.outputs.forEach(function(t){return r[t.id]=!0}),c=!0,o[d.id]=!0;break}if(c)break}}var h={};h[n.id]=!0;var p={};for(i=t.length-1;0<=i;i--)for(a=(d=t[i]).inputs,l=0;l<d.outputs.length;l++)if(h[d.outputs[l].id]){for(var s in a)h[a[s].id]=!0,p[d.id]=!0;break}var f=[];for(i=0;i<t.length;i++){var d;if(o[(d=t[i]).id]&&p[d.id]){var m={};for(var s in d.inputs){var v=d.inputs[s];r[v.id]&&(m[s]=v)}var g=Object.assign({},d);g.inputs=m,g.outputs=d.outputs,f.push(g)}}return f}(c.activeTape,a,t);if(!u&&0===e.length&&0<a.length)throw new Error("Cannot compute gradient of y=f(x) with respect to x. 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p=h*u,f=t.subarray(p,p+u),d=[],m=0;m<f.length;m++)d.push({value:f[m],index:m});d.sort(function(t,e){return e.value-t.value});var v=h*r,g=c.subarray(v,v+r),y=l.subarray(v,v+r);for(m=0;m<r;m++)g[m]=d[m].value,y[m]=d[m].index}var x=e.slice();return x[x.length-1]=r,[ee(c,x,n),ee(l,x,"int32")]}var ze=function(t,e,n){this.variableNames=["A"];var r=t.windowSize,o=t.batchSize,i=t.inSize,a=Math.ceil(i/r);n||this.variableNames.push("bestIndicesA"),this.outputShape=[o,a];var s="max"===e?">":"<",u=n?"inOffset + i;":"round(getBestIndicesA(batch, inOffset + i));";this.userCode="\n      void main() {\n        ivec2 coords = getOutputCoords();\n        int batch = coords[0];\n        int outIdx = coords[1];\n        int inOffset = outIdx * "+r+";\n\n        int bestIndex = inOffset;\n        float bestValue = getA(batch, bestIndex);\n\n        for (int i = 0; i < "+r+"; i++) {\n          int inIdx = "+u+";\n          float candidate = getA(batch, inIdx);\n          if (candidate "+s+" bestValue) {\n   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n=[],r=Math.max(t.length,e.length),o=0;o<r;o++){var i=t[t.length-o-1];null==i&&(i=1);var a=e[e.length-o-1];if(null==a&&(a=1),1===i)n.unshift(a);else if(1===a)n.unshift(i);else{if(i!==a)throw Error("Operands could not be broadcast together with shapes "+t+" and "+e+".");n.unshift(i)}}return n}var qe=function(t,e,n,r,o,i){this.outputShape=[],this.supportsBroadcasting=!0,this.variableNames=["x","mean","variance"],Ge(t,e),Ge(t,n);var a="0.0";null!=r&&(Ge(t,r),this.variableNames.push("offset"),a="getOffsetAtOutCoords()");var s="1.0";null!=o&&(Ge(t,o),this.variableNames.push("scale"),s="getScaleAtOutCoords()"),this.outputShape=t,this.userCode="\n      void main() {\n        float x = getXAtOutCoords();\n        float mean = getMeanAtOutCoords();\n        float variance = getVarianceAtOutCoords();\n        float offset = "+a+";\n        float scale = "+s+";\n        float inv = scale * inversesqrt(variance + float("+i+"));\n        setOutput(dot(vec3(x, -mean, offset), vec3(inv, inv, 1)));\n      }\n    "},je=function(t,e,n,r,o,i){this.supportsBroadcasting=!0,this.usesPackedTextures=!0,this.variableNames=["x","mean","variance"],Ge(t,e),Ge(t,n);var a=He("mean",e.length),s=He("variance",n.length),u="vec4 offset = vec4(0.0)";null!=r&&(Ge(t,r),this.variableNames.push("offset"),u=He("offset",r.length));var c="vec4 scale = vec4(1.0)";null!=o&&(Ge(t,o),this.variableNames.push("scale"),c=He("scale",o.length)),this.outputShape=t,this.userCode="\n      void main() {\n        ivec4 rc = getOutputCoords();\n\n        "+u+";\n        "+c+";\n\n        vec4 x = getX(rc.x, rc.y, rc.z, rc.w);\n        "+a+";\n        "+s+";\n\n        vec4 inv = scale * inversesqrt(variance + vec4("+i+"));\n\n        setOutput((x - mean) * inv + offset);\n      }\n    "};function He(t,e){var n="get"+t.charAt(0).toUpperCase()+t.slice(1);return 1===e?"\n      vec4 "+t+"Sample = "+n+"(rc.w);\n      vec4 "+t+" = vec4("+t+"Sample.xy, "+t+"Sample.xy);\n    ":"vec4 "+t+" = "+n+"(rc.x, rc.y, rc.z, rc.w)"}var $e="return areal * breal - aimag * bimag;",Ke="return areal * bimag + aimag * breal;",Xe=function(t,e,n){this.variableNames=["AReal","AImag","BReal","BImag"],this.supportsBroadcasting=!0,this.outputShape=Ge(e,n),this.userCode="\n      float binaryOpComplex(\n          float areal, float aimag, float breal, float bimag) {\n        "+t+"\n      }\n\n      void main() {\n        float areal = getARealAtOutCoords();\n        float aimag = getAImagAtOutCoords();\n        float breal = getBRealAtOutCoords();\n        float bimag = getBImagAtOutCoords();\n        setOutput(binaryOpComplex(areal, aimag, breal, bimag));\n      }\n    "},Ye="return a + b;",Qe="return a - b;",Je=function(){function t(t,e,n){this.variableNames=["A","B"],this.supportsBroadcasting=!0,this.outputShape=Ge(e,n),this.userCode="\n      uniform float NAN;\n      float binaryOperation(float a, float b) {\n        "+t+"\n      }\n\n      void main() {\n        float a = getAAtOutCoords();\n        float b = getBAtOutCoords();\n        setOutput(binaryOperation(a, b));\n      }\n    "}return t.prototype.getCustomSetupFunc=function(){var n=this;return function(t,e){null==n.startLoc&&(n.startLoc=t.getUniformLocationNoThrow(e,"NAN"),null==n.startLoc)||t.gl.uniform1f(n.startLoc,NaN)}},t}(),Ze=function(t,e,n){this.variableNames=["A"],this.outputShape=t,this.userCode="\n      void main() {\n        float value = getAAtOutCoords();\n        if (isNaN(value)) {\n          setOutput(value);\n          return;\n        }\n\n        setOutput(clamp(value, float("+e+"), float("+n+")));\n      }\n    "},tn=function(t){this.variableNames=["real","imag"],this.outputShape=t,this.userCode="\n      void main() {\n        float real = getRealAtOutCoords();\n        float imag = getImagAtOutCoords();\n        vec2 v = vec2(real, imag);\n\n        setOutput(sqrt(dot(v, v)));\n      }\n    "},en=function(t,e){this.variableNames=["A","B"],this.outputShape=[],this.outputShape=zt([t,e],1),this.userCode="\n      void main() {\n        ivec2 coords = getOutputCoords();\n        int yR = coords.x;\n        int yC = coords.y;\n\n        float value = 0.0;\n        if (yC < "+t[1]+") {\n          value = getA(yR, yC);\n        } else {\n          yC -= "+t[1]+";\n          value = getB(yR, yC);\n        }\n\n        setOutput(value);\n      }\n    "},nn=function(t){this.variableNames=["x","dy"],this.outputShape=t.filterShape;var e=t.strideHeight,n=t.strideWidth,r=t.padInfo.top,o=t.padInfo.left;this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int wR = coords.x;\n        int wC = coords.y;\n        int d1 = coords.z;\n        int d2 = coords.w;\n\n        // Convolve x(?, ?, d1) with dy(:, :, d2) to get dw(wR, wC, d1, d2).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n\n        for (int b = 0; b < "+t.batchSize+"; b++) {\n          for (int yR = 0; yR < "+t.outHeight+"; yR++) {\n            int xR = wR + yR * "+e+" - "+r+";\n\n            if (xR < 0 || xR >= "+t.inHeight+") {\n              continue;\n            }\n\n            for (int yC = 0; yC < "+t.outWidth+"; yC++) {\n              int xC = wC + yC * "+n+" - "+o+";\n\n              if (xC < 0 || xC >= "+t.inWidth+") {\n                continue;\n              }\n\n              float dyValue = getDy(b, yR, yC, d2);\n              float xValue = getX(b, xR, xC, d1);\n              dotProd += (xValue * dyValue);\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},rn=function(t){this.variableNames=["dy","W"],this.outputShape=t.inShape;var e=t.filterHeight,n=t.filterWidth,r=t.strideHeight,o=t.strideWidth,i=e-1-t.padInfo.top,a=n-1-t.padInfo.left;this.userCode="\n      const ivec2 pads = ivec2("+i+", "+a+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int batch = coords[0];\n        int d1 = coords[3];\n\n        ivec2 dyCorner = coords.yz - pads;\n        int dyRCorner = dyCorner.x;\n        int dyCCorner = dyCorner.y;\n\n        // Convolve dy(?, ?, d2) with w(:, :, d1, d2) to compute dx(xR, xC, d1).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n        for (int wR = 0; wR < "+e+"; wR++) {\n          float dyR = float(dyRCorner + wR) / "+r+".0;\n\n          if (dyR < 0.0 || dyR >= "+t.outHeight+".0 || fract(dyR) > 0.0) {\n            continue;\n          }\n          int idyR = int(dyR);\n\n          int wRPerm = "+e+" - 1 - wR;\n\n          for (int wC = 0; wC < "+n+"; wC++) {\n            float dyC = float(dyCCorner + wC) / "+o+".0;\n\n            if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n                fract(dyC) > 0.0) {\n              continue;\n            }\n            int idyC = int(dyC);\n\n            int wCPerm = "+n+" - 1 - wC;\n\n            for (int d2 = 0; d2 < "+t.outChannels+"; d2++) {\n              float xValue = getDy(batch, idyR, idyC, d2);\n              float wValue = getW(wRPerm, wCPerm, d1, d2);\n              dotProd += xValue * wValue;\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},on=function(t){this.variableNames=["x","dy"],this.outputShape=t.filterShape;var e=t.strideHeight,n=t.strideWidth,r=t.padInfo.top,o=t.padInfo.left,i=t.outChannels/t.inChannels;this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int wR = coords.x;\n        int wC = coords.y;\n        int d1 = coords.z;\n        int dm = coords.w;\n        int d2 = d1 * "+i+" + dm;\n\n        float dotProd = 0.0;\n\n        // TODO: Vec4 over the batch size\n        for (int b = 0; b < "+t.batchSize+"; b++) {\n          for (int yR = 0; yR < "+t.outHeight+"; yR++) {\n            int xR = wR + yR * "+e+" - "+r+";\n\n            if (xR < 0 || xR >= "+t.inHeight+") {\n              continue;\n            }\n\n            for (int yC = 0; yC < "+t.outWidth+"; yC++) {\n              int xC = wC + yC * "+n+" - "+o+";\n\n              if (xC < 0 || xC >= "+t.inWidth+") {\n                continue;\n              }\n\n              float dyValue = getDy(b, yR, yC, d2);\n              float xValue = getX(b, xR, xC, d1);\n              dotProd += (xValue * dyValue);\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},an=function(t){this.variableNames=["dy","W"],this.outputShape=t.inShape;var e=t.filterHeight,n=t.filterWidth,r=t.strideHeight,o=t.strideWidth,i=e-1-t.padInfo.top,a=n-1-t.padInfo.left,s=t.outChannels/t.inChannels;this.userCode="\n      const ivec2 pads = ivec2("+i+", "+a+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int batch = coords[0];\n        int d1 = coords[3];\n        ivec2 dyCorner = coords.yz - pads;\n        int dyRCorner = dyCorner.x;\n        int dyCCorner = dyCorner.y;\n\n        float dotProd = 0.0;\n\n        for (int wR = 0; wR < "+e+"; wR++) {\n          float dyR = float(dyRCorner + wR) / "+r+".0;\n\n          if (dyR < 0.0 || dyR >= "+t.outHeight+".0 || fract(dyR) > 0.0) {\n            continue;\n          }\n          int idyR = int(dyR);\n\n          int wRPerm = "+e+" - 1 - wR;\n\n          for (int wC = 0; wC < "+n+"; wC++) {\n            float dyC = float(dyCCorner + wC) / "+o+".0;\n\n            if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n                fract(dyC) > 0.0) {\n              continue;\n            }\n            int idyC = int(dyC);\n\n            int wCPerm = "+n+" - 1 - wC;\n\n            // TODO: Vec4 over the channelMul\n            for (int dm = 0; dm < "+s+"; dm++) {\n              int d2 = d1 * "+s+" + dm;\n              float xValue = getDy(batch, idyR, idyC, d2);\n              float wValue = getW(wRPerm, wCPerm, d1, dm);\n              dotProd += xValue * wValue;\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},sn=function(t){this.variableNames=["x","W"],this.outputShape=t.outShape;var e=t.padInfo.top,n=t.padInfo.left,r=t.strideHeight,o=t.strideWidth,i=t.dilationHeight,a=t.dilationWidth,s=t.filterHeight,u=t.filterWidth,c=4*Math.floor(t.inChannels/4),l=t.inChannels%4;this.userCode="\n      const ivec2 strides = ivec2("+r+", "+o+");\n      const ivec2 pads = ivec2("+e+", "+n+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int batch = coords[0];\n        int d2 = coords[3];\n\n        ivec2 xRCCorner = coords.yz * strides - pads;\n        int xRCorner = xRCCorner.x;\n        int xCCorner = xRCCorner.y;\n\n        // Convolve x(?, ?, d1) with w(:, :, d1, d2) to get y(yR, yC, d2).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n        for (int wR = 0; wR < "+s+"; wR++) {\n          int xR = xRCorner + wR * "+i+";\n\n          if (xR < 0 || xR >= "+t.inHeight+") {\n            continue;\n          }\n\n          for (int wC = 0; wC < "+u+"; wC++) {\n            int xC = xCCorner + wC * "+a+";\n\n            if (xC < 0 || xC >= "+t.inWidth+") {\n              continue;\n            }\n\n            for (int d1 = 0; d1 < "+c+"; d1 += 4) {\n              vec4 xValues = vec4(\n                getX(batch, xR, xC, d1),\n                getX(batch, xR, xC, d1 + 1),\n                getX(batch, xR, xC, d1 + 2),\n                getX(batch, xR, xC, d1 + 3)\n              );\n              vec4 wValues = vec4(\n                getW(wR, wC, d1, d2),\n                getW(wR, wC, d1 + 1, d2),\n                getW(wR, wC, d1 + 2, d2),\n                getW(wR, wC, d1 + 3, d2)\n              );\n\n              dotProd += dot(xValues, wValues);\n            }\n\n            if ("+(1===l)+") {\n              dotProd +=\n                getX(batch, xR, xC, "+c+") *\n                getW(wR, wC, "+c+", d2);\n            } else if ("+(2===l)+") {\n              vec2 xValues = vec2(\n                getX(batch, xR, xC, "+c+"),\n                getX(batch, xR, xC, "+c+" + 1)\n              );\n              vec2 wValues = vec2(\n                getW(wR, wC, "+c+", d2),\n                getW(wR, wC, "+c+" + 1, d2)\n              );\n              dotProd += dot(xValues, wValues);\n            } else if ("+(3===l)+") {\n              vec3 xValues = vec3(\n                getX(batch, xR, xC, "+c+"),\n                getX(batch, xR, xC, "+c+" + 1),\n                getX(batch, xR, xC, "+c+" + 2)\n              );\n              vec3 wValues = vec3(\n                getW(wR, wC, "+c+", d2),\n                getW(wR, wC, "+c+" + 1, d2),\n                getW(wR, wC, "+c+" + 2, d2)\n              );\n              dotProd += dot(xValues, wValues);\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},un=function(t){this.variableNames=["x","W"],this.outputShape=t.outShape;var e=t.inHeight,n=t.inWidth,r=t.padInfo.top,o=t.padInfo.left,i=t.strideHeight,a=t.strideWidth,s=t.dilationHeight,u=t.dilationWidth,c=t.filterHeight,l=t.filterWidth,h=t.outChannels/t.inChannels;this.userCode="\n      const ivec2 strides = ivec2("+i+", "+a+");\n      const ivec2 pads = ivec2("+r+", "+o+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int batch = coords.x;\n        ivec2 xRCCorner = coords.yz * strides - pads;\n        int d2 = coords.w;\n        int d1 = d2 / "+h+";\n        int q = d2 - d1 * "+h+";\n\n        int xRCorner = xRCCorner.x;\n        int xCCorner = xRCCorner.y;\n\n        // Convolve x(?, ?, d1) with w(:, :, d1, q) to get y(yR, yC, d2).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n        // TODO(dsmilkov): Flatten the two for loops and vec4 the operations.\n        for (int wR = 0; wR < "+c+"; wR++) {\n          int xR = xRCorner + wR * "+s+";\n\n          if (xR < 0 || xR >= "+e+") {\n            continue;\n          }\n\n          for (int wC = 0; wC < "+l+"; wC++) {\n            int xC = xCCorner + wC * "+u+";\n\n            if (xC < 0 || xC >= "+n+") {\n              continue;\n            }\n\n            float xVal = getX(batch, xR, xC, d1);\n            float wVal = getW(wR, wC, d1, q);\n            dotProd += xVal * wVal;\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},cn=function(t,e,n,r,o){this.variableNames=["Image","Boxes","BoxInd"],this.outputShape=[];var i=t[0],a=t[1],s=t[2],u=t[3],c=e[0],l=n[0],h=n[1];this.outputShape=[c,l,h,u];var p="bilinear"===r?1:0,f=[a-1+".0",s-1+".0"],d=f[0],m=f[1],v=1<l?[""+(a-1)/(l-1),"(y2-y1) * height_ratio","y1*"+d+" + float(y)*(height_scale)"]:["0.0","0.0","0.5 * (y1+y2) * "+d],g=v[0],y=v[1],x=v[2],b=1<h?[""+(s-1)/(h-1),"(x2-x1) * width_ratio","x1*"+m+" + float(x)*(width_scale)"]:["0.0","0.0","0.5 * (x1+x2) * "+m],w=b[0],E=b[1],S=b[2];this.userCode="\n      const float height_ratio = float("+g+");\n      const float width_ratio = float("+w+");\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int y = coords[1];\n        int x = coords[2];\n        int d = coords[3];\n\n        // get box vals\n        float y1 = getBoxes(b,0);\n        float x1 = getBoxes(b,1);\n        float y2 = getBoxes(b,2);\n        float x2 = getBoxes(b,3);\n\n        // get image in batch index\n        int bInd = round(getBoxInd(b));\n        if(bInd < 0 || bInd >= "+i+") {\n          return;\n        }\n\n        float height_scale = "+y+";\n        float width_scale = "+E+";\n\n        float in_y = "+x+";\n        if( in_y < 0.0 || in_y > "+d+" ) {\n          setOutput(float("+o+"));\n          return;\n        }\n        float in_x = "+S+";\n        if( in_x < 0.0 || in_x > "+m+" ) {\n          setOutput(float("+o+"));\n          return;\n        }\n\n        vec2 sourceFracIndexRC = vec2(in_y,in_x);\n        if("+p+" == 1) {\n          // Compute the four integer indices.\n          ivec2 sourceFloorRC = ivec2(sourceFracIndexRC);\n          ivec2 sourceCeilRC = ivec2(ceil(sourceFracIndexRC));\n\n          float topLeft = getImage(b, sourceFloorRC.x, sourceFloorRC.y, d);\n          float bottomLeft = getImage(b, sourceCeilRC.x, sourceFloorRC.y, d);\n          float topRight = getImage(b, sourceFloorRC.x, sourceCeilRC.y, d);\n          float bottomRight = getImage(b, sourceCeilRC.x, sourceCeilRC.y, d);\n\n          vec2 fracRC = sourceFracIndexRC - vec2(sourceFloorRC);\n\n          float top = topLeft + (topRight - topLeft) * fracRC.y;\n          float bottom = bottomLeft + (bottomRight - bottomLeft) * fracRC.y;\n          float newValue = top + (bottom - top) * fracRC.x;\n          setOutput(newValue);\n        } else {\n          // Compute the coordinators of nearest neighbor point.\n          ivec2 sourceNearestRC = ivec2(floor(\n            sourceFracIndexRC + vec2(0.5,0.5)));\n          float newValue = getImage(b, sourceNearestRC.x, sourceNearestRC.y, d);\n          setOutput(newValue);\n        }\n      }\n    "};function ln(t,i,e,a){var n=t.map(function(t){var e=B(t.shapeInfo.logicalShape);return t.shapeInfo.isUniform?"uniform float "+t.name+(1<e?"["+e+"]":"")+";":"uniform sampler2D "+t.name+";"});n=n.join("\n");var r,o,s=t.map(function(t){return n=i,r=a,o=function(t){var e=t.name,n="get"+e.charAt(0).toUpperCase()+e.slice(1)+"Flat",r=B(t.shapeInfo.logicalShape);if(t.shapeInfo.isUniform)return 1===r?"float "+n+"(int index) {return "+e+";}":"\n      float "+n+"(int index) {\n        for (int i = 0; i < "+r+"; i++) {\n          if (i == index) {\n            return "+e+"[i];\n          }\n        }\n      }\n    ";var o=t.shapeInfo.texShape,i=o[0],a=o[1];return 1===a&&1===i?"\n      float "+n+"(int index) {\n        return sampleTexture("+e+", halfCR);\n      }\n    ":1===a?"\n      float "+n+"(int index) {\n        vec2 uv = vec2(0.5, (float(index) + 0.5) / "+i+".0);\n        return sampleTexture("+e+", uv);\n      }\n    ":1===i?"\n      float "+n+"(int index) {\n        vec2 uv = vec2((float(index) + 0.5) / "+a+".0, 0.5);\n        return sampleTexture("+e+", uv);\n      }\n    ":"\n    float "+n+"(int index) {\n      vec2 uv = UVfrom1D("+i+", "+a+", index);\n      return sampleTexture("+e+", uv);\n    }\n  "}(e=t),e.shapeInfo.isPacked?o+=function(t){var e,n,r,o,i,a,s,u,c,l,h,p,f,d,m,v=t.shapeInfo.logicalShape;switch(v.length){case 1:return p=(h=t).name,f="get"+p.charAt(0).toUpperCase()+p.slice(1),d=h.shapeInfo.texShape,m=[Math.ceil(d[0]/2),Math.ceil(d[1]/2)],"\n    vec4 "+f+"(int index) {\n      vec2 uv = packedUVfrom1D(\n        "+m[0]+", "+m[1]+", index);\n      return texture2D("+p+", uv);\n    }\n  ";case 2:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=t.shapeInfo.texShape,i=o[0],a=o[1];if(null!=o&&T(e,o))return"\n      vec4 "+r+"(int row, int col) {\n        vec2 uv = (vec2(col, row) + halfCR) / vec2("+a+".0, "+i+".0);\n\n        return texture2D("+n+", uv);\n      }\n    ";var s=[Math.ceil(o[0]/2),Math.ceil(o[1]/2)];return"\n    vec4 "+r+"(int row, int col) {\n      vec2 uv = packedUVfrom2D("+Math.ceil(e[1]/2)+", "+s[0]+", "+s[1]+", row, col);\n      return texture2D("+n+", uv);\n    }\n  "}(t);case 4:return n=(e=t).shapeInfo.logicalShape,r=e.name,o="get"+r.charAt(0).toUpperCase()+r.slice(1),i=e.shapeInfo.texShape,a=[Math.ceil(i[0]/2),Math.ceil(i[1]/2)],s=a[0],u=a[1],c=Math.ceil(n[3]/2),l=c*Math.ceil(n[2]/2),"\n    vec4 "+o+"(int b2, int b, int row, int col) {\n      vec2 uv = packedUVfrom4D(\n        "+s+", "+u+", "+l*n[1]+",\n        "+l+", "+c+", b2, b, row, col);\n      return texture2D("+r+", uv);\n    }\n  ";default:throw new Error("Packed "+v.length+"-D input sampling is not yet supported")}}(e):o+=hn(e),(r||T(e.shapeInfo.logicalShape,n.logicalShape))&&(o+=function(t,e,n){var r=t.name,o=r.charAt(0).toUpperCase()+r.slice(1),i="get"+o+"AtOutCoords",a=Ue(t.shapeInfo.logicalShape,e.logicalShape),s=t.shapeInfo.logicalShape.length,u=e.logicalShape.length,c=n&&(s<u||0<a.length),l=function(t){for(var e=0;e<t.length;e++)if(t[e]!==e)return!1;return!0}(a),h=t.shapeInfo.isUniform;if(c&&!l)return function(t,e,n,r){var o=t.shapeInfo.logicalShape.length,i=e.logicalShape.length,a="int";2===i?a="ivec2":3===i?a="ivec3":4===i&&(a="ivec4");var s=Ue(t.shapeInfo.logicalShape,e.logicalShape),u=i-o;return"\n    float "+r+"() {\n      "+a+" coords = getOutputCoords();\n      "+(0===o?"":i<2&&1<=s.length?"coords = 0;":s.map(function(t){return"coords["+(t+u)+"] = 0;"}).join("\n"))+"\n      return get"+n+"("+(i<2&&0<o?"coords":t.shapeInfo.logicalShape.map(function(t,e){return"coords["+(e+u)+"]"}).join(", "))+");\n    }\n  "}(t,e,o,i);var p=B(t.shapeInfo.logicalShape),f="";c&&l&&(f="\n        int mainPart = index / "+p+";\n        index -= mainPart * "+p+";\n      ");var d=e.texShape;if(h)return 1===p?"float "+i+"() {return "+r+";}":"\n      float "+i+"() {\n        ivec2 resTexRC = ivec2(resultUV.yx *\n                              vec2("+d[0]+", "+d[1]+"));\n        int index = resTexRC.x * "+d[1]+" + resTexRC.y;\n        "+f+"\n        return get"+o+"Flat(index);\n      }\n    ";var m=t.shapeInfo.texShape;return T(m,d)?"\n      float "+i+"() {\n        return sampleTexture("+r+", resultUV);\n      }\n    ":"\n    float "+i+"() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+d[0]+", "+d[1]+"));\n      int index = resTexRC.x * "+d[1]+" + resTexRC.y;\n      "+f+"\n      int texR = index / "+m[1]+";\n      int texC = index - texR * "+m[1]+";\n      vec2 uv = (vec2(texC, texR) + halfCR) /\n                 vec2("+m[1]+".0, "+m[0]+".0);\n\n      return sampleTexture("+r+", uv);\n    }\n  "}(e,n,r)),o;var e,n,r,o}).join("\n"),u=i.texShape;return i.isPacked?(r=function(t,e){switch(t.length){case 0:return"\n    int getOutputCoords() {\n      return 0;\n    }\n  ";case 1:return u=e,c=[Math.ceil(u[0]/2),Math.ceil(u[1]/2)],1===u[0]?"\n      int getOutputCoords() {\n        return 2 * int(resultUV.x * "+c[1]+".0);\n      }\n    ":1===u[1]?"\n      int getOutputCoords() {\n        return 2 * int(resultUV.y * "+c[0]+".0);\n      }\n    ":"\n    int getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+c[0]+", "+c[1]+"));\n      return resTexRC.x * "+c[1]+" + resTexRC.y;\n    }\n  ";case 2:return function(t,e){var n=[Math.ceil(e[0]/2),Math.ceil(e[1]/2)];if(T(t,e))return"\n      ivec2 getOutputCoords() {\n        return 2 * ivec2(resultUV.yx * vec2("+n[0]+", "+n[1]+"));\n      }\n    ";var r=Math.ceil(t[1]/2);return"\n    ivec2 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+n[0]+", "+n[1]+"));\n\n      int index = resTexRC.x * "+n[1]+" + resTexRC.y;\n      int r = 2 * (index / "+r+");\n      int c = imod(index, "+r+") * 2;\n\n      return ivec2(r, c);\n    }\n  "}(t,e);case 4:return n=t,r=e,o=[Math.ceil(r[0]/2),Math.ceil(r[1]/2)],i=Math.ceil(n[3]/2),a=i*Math.ceil(n[2]/2),s=a*n[1],"\n    ivec4 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+o[0]+", "+o[1]+"));\n      int index = resTexRC.x * "+o[1]+" + resTexRC.y;\n\n      int b2 = index / "+s+";\n      index -= b2 * "+s+";\n\n      int b = index / "+a+";\n      index -= b * "+a+";\n\n      int r = 2 * (index / "+i+");\n      int c = int(mod(float(index), "+i+".)) * 2;\n\n      return ivec4(b2, b, r, c);\n    }\n  ";default:throw new Error(t.length+"-D output packed sampling is not yet supported")}var n,r,o,i,a,s;var u,c}(i.logicalShape,u),o=dn):(r=function(t,e){switch(t.length){case 0:return"\n    int getOutputCoords() {\n      return 0;\n    }\n  ";case 1:return 1===(R=e)[0]?"\n      int getOutputCoords() {\n        return int(resultUV.x * "+R[1]+".0);\n      }\n    ":1===R[1]?"\n      int getOutputCoords() {\n        return int(resultUV.y * "+R[0]+".0);\n      }\n    ":"\n    int getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+R[0]+", "+R[1]+"));\n      return resTexRC.x * "+R[1]+" + resTexRC.y;\n    }\n  ";case 2:return T(_=t,C=e)?"\n      ivec2 getOutputCoords() {\n        return ivec2(resultUV.yx * vec2("+C[0]+", "+C[1]+"));\n      }\n    ":1===_[1]?"\n      ivec2 getOutputCoords() {\n        ivec2 resTexRC = ivec2(resultUV.yx *\n                               vec2("+C[0]+", "+C[1]+"));\n        int index = resTexRC.x * "+C[1]+" + resTexRC.y;\n        return ivec2(index, 0);\n      }\n    ":1===_[0]?"\n      ivec2 getOutputCoords() {\n        ivec2 resTexRC = ivec2(resultUV.yx *\n                               vec2("+C[0]+", "+C[1]+"));\n        int index = resTexRC.x * "+C[1]+" + resTexRC.y;\n        return ivec2(0, index);\n      }\n    ":"\n    ivec2 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+C[0]+", "+C[1]+"));\n      int index = resTexRC.x * "+C[1]+" + resTexRC.y;\n      int r = index / "+_[1]+";\n      int c = index - r * "+_[1]+";\n      return ivec2(r, c);\n    }\n  ";case 3:return w=e,E=(b=t)[1]*b[2],S=b[2],"\n    ivec3 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+w[0]+", "+w[1]+"));\n      int index = resTexRC.x * "+w[1]+" + resTexRC.y;\n      int r = index / "+E+";\n      index -= r * "+E+";\n      int c = index / "+S+";\n      int d = index - c * "+S+";\n      return ivec3(r, c, d);\n    }\n  ";case 4:return v=e,g=(m=t)[3],y=m[2]*g,x=m[1]*y,"\n    ivec4 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n        vec2("+v[0]+", "+v[1]+"));\n      int index = resTexRC.x * "+v[1]+" + resTexRC.y;\n\n      int r = index / "+x+";\n      index -= r * "+x+";\n\n      int c = index / "+y+";\n      index -= c * "+y+";\n\n      int d = index / "+g+";\n      int d2 = index - d * "+g+";\n\n      return ivec4(r, c, d, d2);\n    }\n  ";case 5:return l=e,h=(c=t)[4],p=c[3]*h,f=c[2]*p,d=c[1]*f,"\n    ivec5 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx * vec2("+l[0]+",\n                             "+l[1]+"));\n\n      int index = resTexRC.x * "+l[1]+" + resTexRC.y;\n\n      int r = index / "+d+";\n      index -= r * "+d+";\n\n      int c = index / "+f+";\n      index -= c * "+f+";\n\n      int d = index / "+p+";\n      index -= d * "+p+";\n\n      int d2 = index  / "+h+";\n      int d3 = index - d2 * "+h+";\n\n      ivec5 outShape = ivec5(r, c, d, d2, d3);\n      return outShape;\n    }\n  ";case 6:return r=e,o=(n=t)[5],i=n[4]*o,a=n[3]*i,s=n[2]*a,u=n[1]*s,"\n    ivec6 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n        vec2("+r[0]+", "+r[1]+"));\n      int index = resTexRC.x * "+r[1]+" + resTexRC.y;\n\n      int r = index / "+u+";\n      index -= r * "+u+";\n\n      int c = index / "+s+";\n      index -= c * "+s+";\n\n      int d = index / "+a+";\n      index -= d * "+a+";\n\n      int d2 = index / "+i+";\n      index -= d2 * "+i+";\n\n      int d3 = index / "+o+";\n      int d4 = index - d3 * "+o+";\n\n      ivec6 result = ivec6(r, c, d, d2, d3, d4);\n      return result;\n    }\n  ";default:throw new Error(t.length+"-D output sampling is not yet supported")}var n,r,o,i,a,s,u;var c,l,h,p,f,d;var m,v,g,y,x;var b,w,E,S;var _,C;var R}(i.logicalShape,u),o=fn),[mn,pn,o,n,r,s,e].join("\n")}function hn(t){var e,n,r,o,i,a=t.shapeInfo.logicalShape;switch(a.length){case 0:return o=(r=t).name,i="get"+o.charAt(0).toUpperCase()+o.slice(1),r.shapeInfo.isUniform?"float "+i+"() {return "+o+";}":"\n    float "+i+"() {\n      return sampleTexture("+o+", halfCR);\n    }\n  ";case 1:return e=t.name,"\n    float "+(n="get"+e.charAt(0).toUpperCase()+e.slice(1))+"(int index) {\n      return "+n+"Flat(index);\n    }\n  ";case 2:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=t.shapeInfo.texShape;if(null!=o&&T(e,o)){var i=o[0];return"\n    float "+r+"(int row, int col) {\n      vec2 uv = (vec2(col, row) + halfCR) / vec2("+o[1]+".0, "+i+".0);\n      return sampleTexture("+n+", uv);\n    }\n  "}var a=y(e),s=a.newShape,u=a.keptDims,c=s;if(c.length<e.length)return"\n      "+hn(gn(t,c))+"\n      float "+r+"(int row, int col) {\n        return "+r+"("+yn(["row","col"],u)+");\n      }\n    ";if(t.shapeInfo.isUniform)return"\n      float "+r+"(int row, int col) {\n        float index = dot(vec2(row, col), vec2("+e[1]+", 1));\n        return "+r+"Flat(round(index));\n      }\n    ";var l=o[0],h=o[1];return 1===h?"\n    float "+r+"(int row, int col) {\n      float index = dot(vec2(row, col), vec2("+e[1]+", 1));\n      vec2 uv = vec2(0.5, (index + 0.5) / "+l+".0);\n      return sampleTexture("+n+", uv);\n    }\n  ":1===l?"\n    float "+r+"(int row, int col) {\n      float index = dot(vec2(row, col), vec2("+e[1]+", 1));\n      vec2 uv = vec2((index + 0.5) / "+h+".0, 0.5);\n      return sampleTexture("+n+", uv);\n    }\n  ":"\n  float "+r+"(int row, int col) {\n    vec2 uv = UVfrom2D("+l+", "+h+", "+e[1]+", row, col);\n    return sampleTexture("+n+", uv);\n  }\n"}(t);case 3:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=e[1]*e[2],i=e[2],a=y(e),s=a.newShape,u=a.keptDims,c=s;if(c.length<e.length)return"\n        "+hn(gn(t,c))+"\n        float "+r+"(int row, int col, int depth) {\n          return "+r+"("+yn(["row","col","depth"],u)+");\n        }\n      ";if(t.shapeInfo.isUniform)return"\n      float "+r+"(int row, int col, int depth) {\n        float index = dot(vec3(row, col, depth),\n                          vec3("+o+", "+i+", 1));\n        return "+r+"Flat(round(index));\n      }\n    ";var l=t.shapeInfo.texShape,h=l[0],p=l[1];return p===o?"\n        float "+r+"(int row, int col, int depth) {\n          float texR = float(row);\n          float texC = dot(vec2(col, depth), vec2("+i+", 1));\n          vec2 uv = (vec2(texC, texR) + halfCR) /\n                     vec2("+p+".0, "+h+".0);\n          return sampleTexture("+n+", uv);\n        }\n      ":p===i?"\n    float "+r+"(int row, int col, int depth) {\n      float texR = dot(vec2(row, col), vec2("+e[1]+", 1));\n      float texC = float(depth);\n      vec2 uv = (vec2(texC, texR) + halfCR) / vec2("+p+".0, "+h+".0);\n      return sampleTexture("+n+", uv);\n    }\n  ":"\n      float "+r+"(int row, int col, int depth) {\n        vec2 uv = UVfrom3D(\n            "+h+", "+p+", "+o+", "+i+", row, col, depth);\n        return sampleTexture("+n+", uv);\n      }\n  "}(t);case 4:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=e[3],i=e[2]*o,a=e[1]*i,s=y(e),u=s.newShape,c=s.keptDims;if(u.length<e.length)return"\n      "+hn(gn(t,u))+"\n      float "+r+"(int row, int col, int depth, int depth2) {\n        return "+r+"("+yn(["row","col","depth","depth2"],c)+");\n      }\n    ";if(t.shapeInfo.isUniform)return"\n      float "+r+"(int row, int col, int depth, int depth2) {\n        float index = dot(vec4(row, col, depth, depth2),\n                          vec4("+a+", "+i+", "+o+", 1));\n        return "+r+"Flat(round(index));\n      }\n    ";var l=t.shapeInfo.texShape,h=l[0],p=l[1];return p===a?"\n      float "+r+"(int row, int col, int depth, int depth2) {\n        float texR = float(row);\n        float texC =\n            dot(vec3(col, depth, depth2), vec3("+i+", "+o+", 1));\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                   vec2("+p+".0, "+h+".0);\n        return sampleTexture("+n+", uv);\n      }\n    ":p===o?"\n      float "+r+"(int row, int col, int depth, int depth2) {\n        float texR = dot(vec3(row, col, depth),\n                         vec3("+e[1]*e[2]+", "+e[2]+", 1));\n        float texC = float(depth2);\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                  vec2("+p+".0, "+h+".0);\n        return sampleTexture("+n+", uv);\n      }\n    ":"\n    float "+r+"(int row, int col, int depth, int depth2) {\n      vec2 uv = UVfrom4D("+h+", "+p+", "+a+", "+i+",\n          "+o+", row, col, depth, depth2);\n      return sampleTexture("+n+", uv);\n    }\n  "}(t);case 5:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=e[4],i=e[3]*o,a=e[2]*i,s=e[1]*a,u=y(e),c=u.newShape,l=u.keptDims;if(c.length<e.length)return"\n      "+hn(gn(t,c))+"\n      float "+r+"(int row, int col, int depth, int depth2, int depth3) {\n        return "+r+"("+yn(["row","col","depth","depth2","depth3"],l)+");\n      }\n    ";if(t.shapeInfo.isUniform)return"\n      float "+r+"(int row, int col, int depth, int depth2, int depth3) {\n        float index = dot(\n          vec4(row, col, depth, depth2),\n          vec4("+s+", "+a+", "+i+", "+o+")) +\n          depth3;\n        return "+r+"Flat(index);\n      }\n    ";var h=t.shapeInfo.texShape,p=h[0],f=h[1];return f===s?"\n      float "+r+"(int row, int col, int depth, int depth2, int depth3) {\n        int texR = row;\n        float texC = dot(\n          vec4(col, depth, depth2, depth3),\n          vec4("+a+", "+i+", "+o+", 1));\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                   vec2("+f+".0, "+p+".0);\n        return sampleTexture("+n+", uv);\n      }\n    ":f===o?"\n      float "+r+"(int row, int col, int depth, int depth2, int depth3) {\n        float texR = dot(\n          vec4(row, col, depth, depth2),\n          vec4("+e[1]*e[2]*e[3]+", "+e[2]*e[3]+",\n            "+e[3]+", 1));\n        int texC = depth3;\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                  vec2("+f+".0, "+p+".0);\n        return sampleTexture("+n+", uv);\n      }\n    ":"\n    float "+r+"(int row, int col, int depth, int depth2, int depth3) {\n      vec2 uv = UVfrom5D("+p+", "+f+", "+s+", "+a+",\n          "+i+", "+o+", row, col, depth, depth2, depth3);\n      return sampleTexture("+n+", uv);\n    }\n  "}(t);case 6:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=e[5],i=e[4]*o,a=e[3]*i,s=e[2]*a,u=e[1]*s,c=y(e),l=c.newShape,h=c.keptDims;if(l.length<e.length)return"\n      "+hn(gn(t,l))+"\n      float "+r+"(int row, int col, int depth,\n                    int depth2, int depth3, int depth4) {\n        return "+r+"("+yn(["row","col","depth","depth2","depth3","depth4"],h)+");\n      }\n    ";if(t.shapeInfo.isUniform)return"\n      float "+r+"(int row, int col, int depth,\n                  int depth2, int depth3, int depth4) {\n        float index = dot(\n          vec4(row, col, depth, depth2),\n          vec4("+u+", "+s+", "+a+", "+i+")) +\n          dot(\n            vec2(depth3, depth4),\n            vec2("+o+", 1));\n        return "+r+"Flat(index);\n      }\n    ";var p=t.shapeInfo.texShape,f=p[0],d=p[1];return d===u?"\n      float "+r+"(int row, int col, int depth,\n                    int depth2, int depth3, int depth4) {\n        int texR = row;\n        float texC = dot(\n          vec4(col, depth, depth2, depth3),\n          vec4("+s+", "+a+", "+i+", "+o+")) + depth4;\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                   vec2("+d+".0, "+f+".0);\n        return sampleTexture("+n+", uv);\n      }\n    ":d===o?"\n      float "+r+"(int row, int col, int depth,\n                    int depth2, int depth3, int depth4) {\n        float texR = dot(\n          vec4(row, col, depth, depth2),\n          vec4("+e[1]*e[2]*e[3]*e[4]+",\n               "+e[2]*e[3]*e[4]+",\n               "+e[3]*e[4]+",\n               "+e[4]+")) + depth3;\n        int texC = depth4;\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                  vec2("+d+".0, "+f+".0);\n        return sampleTexture("+n+", uv);\n      }\n    ":"\n    float "+r+"(int row, int col, int depth,\n                  int depth2, int depth3, int depth4) {\n      vec2 uv = UVfrom6D("+f+", "+d+", "+u+", "+s+",\n          "+a+", "+i+", "+o+"\n          ,row, col, depth, depth2, depth3, depth4);\n      return sampleTexture("+n+", uv);\n    }\n  "}(t);default:throw new Error(a.length+"-D input sampling is not yet supported")}}var pn="\n  float sampleTexture(sampler2D textureSampler, vec2 uv) {\n    return texture2D(textureSampler, uv).r;\n  }\n",fn="\n  void setOutput(float val) {\n    gl_FragColor = vec4(val, 0, 0, 0);\n  }\n",dn="\n  void setOutput(vec4 val) {\n    gl_FragColor = val;\n  }\n",mn="\n  precision highp float;\n  precision highp int;\n  varying vec2 resultUV;\n  const vec2 halfCR = vec2(0.5, 0.5);\n\n  struct ivec5\n  {\n    int x;\n    int y;\n    int z;\n    int w;\n    int u;\n  };\n\n  struct ivec6\n  {\n    int x;\n    int y;\n    int z;\n    int w;\n    int u;\n    int v;\n  };\n\n  bool isNaN(float val) {\n    return (val < 1.0 || 0.0 < val || val == 0.0) ? false : true;\n  }\n\n  bool hasNaN(vec4 values) {\n    vec4 v1 = values * values;\n    vec4 v2 = values * values;\n    return any(notEqual(v1, v2));\n  }\n\n  float getNaN(vec4 values) {\n    return dot(vec4(1), values);\n  }\n\n  int round(float value) {\n    return int(floor(value + 0.5));\n  }\n\n  int imod(int x, int y) {\n    return x - y * (x / y);\n  }\n\n  //Based on the work of Dave Hoskins\n  //https://www.shadertoy.com/view/4djSRW\n  #define HASHSCALE1 443.8975\n  float random(float seed){\n    vec2 p = resultUV * seed;\n    vec3 p3  = fract(vec3(p.xyx) * HASHSCALE1);\n    p3 += dot(p3, p3.yzx + 19.19);\n    return fract((p3.x + p3.y) * p3.z);\n  }\n\n  \nvec2 UVfrom1D(int texNumR, int texNumC, int index) {\n  int texR = index / texNumC;\n  int texC = index - texR * texNumC;\n  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);\n}\nvec2 packedUVfrom1D(int texNumR, int texNumC, int index) {\n  int texelIndex = index / 2;\n  int texR = texelIndex / texNumC;\n  int texC = texelIndex - texR * texNumC;\n  return 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operations as dot() only works on floats.\n  int index = row * stride0 + col * stride1 +\n              depth * stride2 + depth2 * stride3 + depth3;\n  int texR = index / texNumC;\n  int texC = index - texR * texNumC;\n  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);\n}\n\n  \nvec2 UVfrom6D(int texNumR, int texNumC, int stride0,\n    int stride1, int stride2, int stride3, int stride4,\n    int row, int col, int depth, int depth2, int depth3, int depth4) {\n  // Explicitly use integer operations as dot() only works on floats.\n  int index = row * stride0 + col * stride1 + depth * stride2 + depth2 *\n    stride3 + depth3 * stride4 + depth4;\n  int texR = index / texNumC;\n  int texC = index - texR * texNumC;\n  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);\n}\n\n";function vn(t){if(t<=1)return"int";if(2===t)return"ivec2";if(3===t)return"ivec3";if(4===t)return"ivec4";if(5===t)return"ivec5";if(6===t)return"ivec6";throw Error("GPU for rank "+t+" is not yet supported")}function gn(t,e){var n=JSON.parse(JSON.stringify(t));return n.shapeInfo.logicalShape=e,n}function yn(e,t){return t.map(function(t){return e[t]}).join(", ")}var xn=function(t,e,n){this.variableNames=["x"];var r=(this.outputShape=t).length,o=t[t.length-1],i=n?"<":">";this.userCode="\n      int getIndex(int i) {\n        "+(n?"return "+o+" -i - 1;":"return i;")+"\n      }\n\n      void main() {\n        "+vn(r)+" coords = getOutputCoords();\n        int end = "+bn(r,"coords")+";\n        float val = 0.0;\n        for (int i = "+o+" - 1; i >= 0; i -= 1) {\n          int idx = getIndex(i);\n          if (idx "+i+" end) {\n            continue;\n          }\n          if (idx == end && "+e+") {\n            continue;\n          }\n          "+bn(r,"coords")+" = idx;\n          val += getX("+function(t,e){if(1===t)return""+e;if(2===t)return e+".x, "+e+".y";if(3===t)return e+".x, "+e+".y, "+e+".z";if(4===t)return e+".x, "+e+".y, "+e+".z, "+e+".w";throw Error("Cumulative sum for rank "+t+" is not yet supported")}(r,"coords")+");\n        }\n        setOutput(val);\n      }\n    "};function bn(t,e){if(1===t)return""+e;if(2===t)return e+".y";if(3===t)return e+".z";if(4===t)return e+".w";throw Error("Cumulative sum for rank "+t+" is not yet supported")}var wn=function(){function t(t,e,n){this.variableNames=["x"],this.outputShape=[],this.outputShape=t,this.blockSize=e,this.dataFormat=n,this.userCode="\n    void main() {\n      ivec4 coords = getOutputCoords();\n      int b = coords[0];\n      int h = "+this.getHeightCoordString()+";\n      int w = "+this.getWidthCoordString()+";\n      int d = "+this.getDepthCoordString()+";\n\n      int in_h = h / "+e+";\n      int offset_h = imod(h, "+e+");\n      int in_w = w / "+e+";\n      int offset_w = imod(w, "+e+");\n      int offset_d = (offset_h * "+e+" + offset_w) *\n        "+this.getOutputDepthSize()+";\n      int in_d = d + offset_d;\n\n      float result = "+this.getInputSamplingString()+";\n      setOutput(result);\n    }\n  "}return t.prototype.getHeightCoordString=function(){return"NHWC"===this.dataFormat?"coords[1]":"coords[2]"},t.prototype.getWidthCoordString=function(){return"NHWC"===this.dataFormat?"coords[2]":"coords[3]"},t.prototype.getDepthCoordString=function(){return"NHWC"===this.dataFormat?"coords[3]":"coords[1]"},t.prototype.getOutputDepthSize=function(){return"NHWC"===this.dataFormat?this.outputShape[3]:this.outputShape[1]},t.prototype.getInputSamplingString=function(){return"NHWC"===this.dataFormat?"getX(b, in_h, in_w, in_d)":"getX(b, in_d, in_h, in_w)"},t}(),En=function(t){this.variableNames=["A"],this.outputShape=t,this.userCode="\n      const float FLOAT_MAX = 1.70141184e38;\n      const float FLOAT_MIN = 1.17549435e-38;\n\n      lowp vec4 encode_float(highp float v) {\n        if (isNaN(v)) {\n          return vec4(255, 255, 255, 255);\n        }\n\n        highp float av = abs(v);\n\n        if(av < FLOAT_MIN) {\n          return vec4(0.0, 0.0, 0.0, 0.0);\n  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n=e[1];this.outputShape=e,this.userCode="\n      const float negativeTwoPi = -2.0 * 3.1415926535897932384626433832795;\n\n      float unaryOpComplex(float real, float expR, float imag, float expI) {\n        "+t+"\n      }\n\n      float mulMatDFT(int batch, int index) {\n        float indexRatio = float(index) / float("+n+");\n        float negativeTwoPiTimesIndexRatio = negativeTwoPi * indexRatio;\n\n        float result = 0.0;\n\n        for (int i = 0; i < "+n+"; i++) {\n          // x = (-2 * PI / N) * index * i;\n          float x = negativeTwoPiTimesIndexRatio * float(i);\n          float expR = cos(x);\n          float expI = sin(x);\n          float real = getReal(batch, i);\n          float imag = getImag(batch, i);\n\n          result += unaryOpComplex(real, expR, imag, expI);\n        }\n\n        return result;\n      }\n\n      void main() {\n        ivec2 coords = getOutputCoords();\n        setOutput(mulMatDFT(coords[0], coords[1]));\n      }\n    "},Rn=function(t){this.variableNames=["A"];var e=t[0],n=t[1];this.outputShape=t,this.userCode="\n      void main() {\n        ivec3 coords = getOutputCoords();\n        int texR = coords[0];\n        int texC = coords[1];\n        int depth = coords[2];\n        vec2 uv = (vec2(texC, texR) + halfCR) / vec2("+n+".0, "+e+".0);\n\n        vec4 values = texture2D(A, uv);\n        float value;\n        if (depth == 0) {\n          value = values.r;\n        } else if (depth == 1) {\n          value = values.g;\n        } else if (depth == 2) {\n          value = values.b;\n        } else if (depth == 3) {\n          value = values.a;\n        }\n\n        setOutput(floor(value * 255.0 + 0.5));\n      }\n    "},Tn=function(t,e,n){this.variableNames=["A","indices"];var r=t.slice();r[n]=e,this.outputShape=r,this.rank=r.length;var o=vn(this.rank),i=function(t,e){var n=t.length;if(4<n)throw Error("Gather for rank "+n+" is not yet supported");if(1===n)return"int(getIndices(resRC))";for(var 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Shapes "+n+" and "+o+" must match");if(!t.isUniform||!r.isUniform){var i=t.texShape,a=r.isUniform?null:r.texData.texShape;if(!T(i,a))throw Error("Binary was compiled with different texture shapes than the current args. Shape "+i+" and "+a+" must match")}})}var Vr=function(t,e,n){this.variableNames=["A"],this.outputShape=t;var r=n.filterWidth,o=n.inChannels,i=n.strideWidth,a=n.strideHeight,s=n.padInfo,u=n.outWidth,c=n.dilationWidth,l=n.dilationHeight,h=s.left,p=s.top,f=o*r;this.userCode="\n      void main() {\n        ivec2 rc = getOutputCoords();\n\n        vec4 result = vec4(0);\n\n        for(int row=0; row<=1; row++) {\n          for(int col=0; col<=1; col++) {\n            int blockIndex = rc.y + col;\n            int pos = rc.x + row;\n\n            if(blockIndex >= "+t[1]+" || pos >= "+t[0]+") continue;\n\n            int offsetY = int(blockIndex / ("+u+")) * "+a+" - "+p+";\n            int d0 = offsetY + "+l+" * (pos / "+f+");\n\n            if(d0 >= "+e[0]+" || d0 < 0) continue;\n\n            int offsetX = int(mod(float(blockIndex), "+u+".) * "+i+". - "+h+".);\n            int d1 = offsetX + "+c+" * (int(mod(float(pos), "+f+".) / "+o+".));\n\n            if(d1 >= "+e[1]+" || d1 < 0) continue;\n\n            result[row * 2 + col] = getA(d0, d1, int(mod(float(pos), "+o+".)));\n          }\n        }\n\n        gl_FragColor = result;\n      }\n    "},Gr=function(t,e,n,r,o){this.variableNames=["x"],this.outputShape=[];var i,a=e,s=t[3]-1;this.outputShape=t;var u="float("+n+") + float("+r+") * sum";i=.5===o?"inversesqrt("+u+")":1===o?"1.0/("+u+")":"exp(log("+u+") * float(-"+o+"));",this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int r = coords[1];\n        int c = coords[2];\n        int d = coords[3];\n        float x = getX(b, r, c, d);\n        float sum = 0.0;\n        for (int j = -"+a+"; j <= "+a+"; j++) {\n          int idx = d + j;\n          if (idx >= 0 && idx <=  "+s+") {\n            float z = getX(b, r, c, idx);\n            sum += z * z;\n          }\n        }\n        float val = x * "+i+";\n        setOutput(val);\n      }\n    "},qr=function(t,e,n,r,o){this.variableNames=["inputImage","outputImage","dy"],this.outputShape=[],this.outputShape=t,this.depth=t[3],this.depthRadius=e,this.bias=n,this.alpha=r,this.beta=o,this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int r = coords[1];\n        int c = coords[2];\n\n        float result = 0.0;\n        for (int d = 0; d < "+this.depth+"; ++d) {\n          int depthBegin = int(max(0.0, float(d - "+e+")));\n          int depthEnd = int(min(float("+this.depth+"),\n              float(d + "+e+" + 1)));\n\n          const int MIN_DEPTH_BEGIN = 0;\n          const int MAX_DEPTH_END = "+this.depth+";\n\n          float norm = 0.0;\n          for (int k = MIN_DEPTH_BEGIN; k < MAX_DEPTH_END; ++k) {\n            if (k < depthBegin){\n              continue;\n            }\n            else if (k >= depthBegin && k < depthEnd) {\n              norm += getInputImage(b, r, c, k) * getInputImage(b, r, c, k);\n            }\n            else {\n              break;\n            }\n          }\n\n          norm = float("+r+") * norm + float("+n+");\n\n          for(int k = MIN_DEPTH_BEGIN; k < MAX_DEPTH_END; ++k){\n            if (k < depthBegin){\n              continue;\n            }\n            else if (k >= depthBegin && k < depthEnd){\n              float dyi = -2.0 * float("+r+")\n                * float("+o+")\n                * getInputImage(b ,r ,c, k) * getOutputImage(b, r, c, d)\n                / norm;\n              if (k == d) {\n                dyi += pow(norm, -1.0 * "+o+");\n              }\n              if (k == coords[3]) {\n                dyi *= getDy(b, r, c, d);\n                result += dyi;\n              }\n            }\n            else {\n              break;\n            }\n          }\n      }\n      setOutput(result);\n      }\n    "},jr=function(t){this.variableNames=["dy","maxPos"],this.outputShape=t.inShape;var e=t.strideHeight,n=t.strideWidth,r=t.dilationHeight,o=t.effectiveFilterHeight,i=t.effectiveFilterWidth,a=o-1-t.padInfo.top,s=i-1-t.padInfo.left,u=o*i-1;this.userCode="\n      const ivec2 pads = ivec2("+a+", "+s+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n\n        ivec2 dyRCCorner = coords.yz - pads;\n        int dyRCorner = dyRCCorner.x;\n        int dyCCorner = dyRCCorner.y;\n\n        // Convolve dy(?, ?, d) with pos mask(:, :, d) to get dx(xR, xC, d).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n        for (int wR = 0; wR < "+o+";\n          wR += "+r+") {\n          float dyR = float(dyRCorner + wR) / "+e+".0;\n\n          if (dyR < 0.0 || dyR >= "+t.outHeight+".0 || fract(dyR) > 0.0) {\n            continue;\n          }\n          int idyR = int(dyR);\n\n          for (int wC = 0; wC < "+i+"; wC++) {\n            float dyC = float(dyCCorner + wC) / "+n+".0;\n\n            if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n                fract(dyC) > 0.0) {\n              continue;\n            }\n            int idyC = int(dyC);\n\n            float dyValue = getDy(b, idyR, idyC, d);\n            int maxPosValue = "+u+" - int(getMaxPos(b, idyR, idyC, d));\n\n            // Get the current value, check it against the value from the\n            // position matrix.\n            int curPosValue = wR * "+i+" + wC;\n            float mask = float(maxPosValue == curPosValue ? 1.0 : 0.0);\n\n            dotProd += dyValue * mask;\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},Hr=function(t,e,n,r){void 0===n&&(n=!1),void 0===r&&(r=!1),this.variableNames=["matrixA","matrixB"];var o=t[0],i=n?t[2]:t[1],a=r?e[1]:e[2],s=n?t[1]:t[2];this.outputShape=[o,i,a];var u=function(t,e){return n?"batch, "+e+" + "+t+", aRow":"batch, aRow, "+e+" + "+t},c=function(t,e){return r?"batch, bCol, "+e+" + "+t:"batch, "+e+" + "+t+", bCol"},l=4*Math.floor(s/4),h=s%4;this.userCode=" float dotARowBCol(int batch, int aRow, int bCol) {\n      float result = 0.0;\n      for (int i = 0; i < "+l+"; i += 4) {\n        vec4 a = vec4(\n          getMatrixA("+u(0,"i")+"),\n          getMatrixA("+u(1,"i")+"),\n          getMatrixA("+u(2,"i")+"),\n          getMatrixA("+u(3,"i")+")\n        );\n        vec4 b = vec4(\n          getMatrixB("+c(0,"i")+"),\n          getMatrixB("+c(1,"i")+"),\n          getMatrixB("+c(2,"i")+"),\n          getMatrixB("+c(3,"i")+")\n        );\n\n        result += dot(a, b);\n      }\n\n      if ("+(1===h)+") {\n        result += getMatrixA("+u(0,l)+") *\n          getMatrixB("+c(0,l)+");\n      } else if ("+(2===h)+") {\n        vec2 a = vec2(\n          getMatrixA("+u(0,l)+"),\n          getMatrixA("+u(1,l)+")\n        );\n        vec2 b = vec2(\n          getMatrixB("+c(0,l)+"),\n          getMatrixB("+c(1,l)+")\n        );\n        result += dot(a, b);\n      } else if ("+(3===h)+") {\n        vec3 a = vec3(\n          getMatrixA("+u(0,l)+"),\n          getMatrixA("+u(1,l)+"),\n          getMatrixA("+u(2,l)+")\n        );\n        vec3 b = vec3(\n          getMatrixB("+c(0,l)+"),\n          getMatrixB("+c(1,l)+"),\n          getMatrixB("+c(2,l)+")\n        );\n        result += dot(a, b);\n      }\n\n      return result;\n    }\n\n    void main() {\n      ivec3 resBRC = getOutputCoords();\n      setOutput(dotARowBCol(resBRC.x, resBRC.y, resBRC.z));\n    }\n    "},$r=function(t,e,n,r,o){void 0===r&&(r=!1),void 0===o&&(o=!1),this.variableNames=["matrixA","matrixB"],this.usesPackedTextures=!0,this.outputShape=n;var i=r?t[0]:t[1],a=Math.ceil(i/2),s=r?"i * 2, rc.x":"rc.x, i * 2",u=o?"rc.y, i * 2":"i * 2, rc.y",c=r?["a.xxyy","a.zzww"]:["a.xxzz","a.yyww"],l=o?["b.xzxz","b.ywyw"]:["b.xyxy","b.zwzw"];this.userCode="\n      const float sharedDimension = "+a+".0;\n\n      vec4 dot2x2ARowBCol(ivec2 rc) {\n        vec4 result = vec4(0);\n        for (int i = 0; i < "+a+"; i++) {\n          vec4 a = getMatrixA("+s+");\n          vec4 b = getMatrixB("+u+");\n\n          result += ("+c[0]+" * "+l[0]+") + ("+c[1]+" * "+l[1]+");\n        }\n        return result;\n      }\n\n      void main() {\n        ivec2 rc = getOutputCoords();\n        setOutput(dot2x2ARowBCol(rc));\n      }\n    "},Kr=function(){function t(t,e,n){this.variableNames=["probs"],this.outputShape=[t,n],this.userCode="\n      uniform float seed;\n\n      void main() {\n        ivec2 coords = getOutputCoords();\n        int batch = coords[0];\n\n        float r = random(seed);\n        float cdf = 0.0;\n\n        for (int i = 0; i < "+(e-1)+"; i++) {\n          cdf += getProbs(batch, i);\n\n          if (r < cdf) {\n            setOutput(float(i));\n            return;\n          }\n        }\n\n        // If no other event happened, last event happened.\n        setOutput(float("+(e-1)+"));\n      }\n    "}return t.prototype.getCustomSetupFunc=function(n){var r=this;return function(t,e){null==r.seedLoc&&(r.seedLoc=t.getUniformLocation(e,"seed")),t.gl.uniform1f(r.seedLoc,n)}},t}(),Xr=function(t,e,n,r){this.variableNames=["indices"],this.outputShape=[t,e],this.userCode="\n      void main() {\n        ivec2 coords = getOutputCoords();\n        int index = round(getIndices(coords.x));\n        setOutput(mix(float("+r+"), float("+n+"),\n                      float(index == coords.y)));\n      }\n    "};function Yr(e){return["x","y","z","w"].map(function(t){return e+"."+t})}function Qr(t,e){return e.slice(0,t).slice(-2)}var Jr=function(t){this.variableNames=["A"];var e,n,r,o,i=(this.outputShape=t).length,a=Yr("rc"),s=vn(i),u=function(t,e,n){if(1===t)return"rc > "+e[0];for(var r="",o=0;o<t;o++)r+=n[o]+" >= "+e[o],o<t-1&&(r+="||");return r}(i,t,a),c=function(t,e,n,r){if(1===t)return"";var o=Qr(t,r);return"\n    int r = "+o[0]+";\n    int c = "+o[1]+";\n    int rp1 = r + 1;\n    int cp1 = c + 1;\n\n    bool cEdge = cp1 >= "+e+";\n    bool rEdge = rp1 >= "+n+";\n  "}(i,t[t.length-1],t[t.length-2],a),l=(n=a,r=(e=t).length,o=function(t,e){for(var n=[],r=0;r<=1;r++)for(var o=0;o<=1;o++){for(var i=(0===r?"r":"rp1")+", "+(0===o?"c":"cp1"),a=2;a<t;a++)i=e[e.length-1-a]+","+i;n.push(i)}return n}(r,n),1===r?"getA(rc),\n            rc + 1 >= "+e[0]+" ? 0. : getA(rc + 1),\n            0, 0":"getA("+o[0]+"),\n          cEdge ? 0. : getA("+o[1]+"),\n          rEdge ? 0. : getA("+o[2]+"),\n          rEdge || cEdge ? 0. : getA("+o[3]+")");this.userCode="\n      void main() {\n        "+s+" rc = getOutputCoords();\n\n        if("+u+") {\n          gl_FragColor = vec4(0);\n        } else {\n          "+c+"\n\n          setOutput(vec4("+l+"));\n        }\n      }\n    "};var Zr=function(n,t,e){this.variableNames=["x"],this.outputShape=t.map(function(t,e){return t[0]+n[e]+t[1]});var r=n.length,o=vn(r),i=t.map(function(t){return t[0]}).join(","),a=t.map(function(t,e){return t[0]+n[e]}).join(","),s=["coords[0]","coords[1]","coords[2]","coords[3]"].slice(0,r);this.userCode=1!==r?"\n      "+o+" start = "+o+"("+i+");\n      "+o+" end = "+o+"("+a+");\n\n      void main() {\n        "+o+" outC = getOutputCoords();\n        if (any(lessThan(outC, start)) || any(greaterThanEqual(outC, end))) {\n          setOutput(float("+e+"));\n        } else {\n          "+o+" coords = outC - start;\n          setOutput(getX("+s+"));\n        }\n      }\n    ":"\n        int start = "+i+";\n        int end = "+a+";\n\n        void main() {\n          int outC = getOutputCoords();\n          if (outC < start || outC >= end) {\n            setOutput(float("+e+"));\n          } else {\n            setOutput(getX(outC - start));\n          }\n        }\n      "},to=function(t,e,n){if(this.variableNames=["x"],"avg"===e&&n)throw new Error("Cannot compute positions for average pool.");var r=t.filterWidth,o=t.strideHeight,i=t.strideWidth,a=t.dilationHeight,s=t.dilationWidth,u=t.effectiveFilterHeight,c=t.effectiveFilterWidth,l=t.padInfo.top,h=t.padInfo.left;this.outputShape=t.outShape;var p="avg"===e,f="0.0";if(p||(f="-1.0 / 0.0"),n)this.userCode="\n        const ivec2 strides = ivec2("+o+", "+i+");\n        const ivec2 pads = ivec2("+l+", "+h+");\n\n        void main() {\n          ivec4 coords = getOutputCoords();\n          int batch = coords[0];\n          int d = coords[3];\n\n          ivec2 xRCCorner = coords.yz * strides - pads;\n          int xRCorner = xRCCorner.x;\n          int xCCorner = xRCCorner.y;\n\n          // max/min x(?, ?, d) to get y(yR, yC, d).\n          // ? = to be determined\n          float minMaxValue = 0.0;\n          float minMaxValueFound = 0.0;\n          int minMaxPosition = 0;\n          float avgValue = 0.0;\n\n          for (int wR = 0; wR < "+u+";\n              wR += "+a+") {\n            int xR = xRCorner + wR;\n\n            if (xR < 0 || xR >= "+t.inHeight+") {\n              continue;\n            }\n\n            for (int wC = 0; wC < "+c+";\n                wC += "+s+") {\n              int xC = xCCorner + wC;\n\n              if (xC < 0 || xC >= "+t.inWidth+") {\n                continue;\n              }\n\n              float value = getX(batch, xR, xC, d);\n\n              // If a min / max value has already been found, use it. If not,\n              // use the current value.\n              float currMinMaxValue = mix(\n                  value, minMaxValue, minMaxValueFound);\n              if (value >= currMinMaxValue) {\n                minMaxValue = value;\n                minMaxValueFound = 1.0;\n                minMaxPosition = wR * "+c+" + wC;\n              }\n            }\n          }\n          setOutput(float(minMaxPosition));\n        }\n      ";else{var d=e+"("+e+"("+e+"(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])";"avg"===e&&(d="avgValue / count");var m=4*Math.floor(r/4),v=r%4,g="\n      if ("+p+") {\n        avgValue += dot(values, ones);\n      } else {\n        minMaxValue = max(values, minMaxValue);\n      }\n    ";this.userCode="\n      const ivec2 strides = ivec2("+o+", "+i+");\n      const ivec2 pads = ivec2("+l+", "+h+");\n      const float initializationValue = "+f+";\n      const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0);\n\n      float count = 0.0;\n\n      float getValue(int batch, int xR, int xC, int d) {\n        if (xC < 0 || xC >= "+t.inWidth+") {\n          return initializationValue;\n        }\n        count += 1.0;\n        return getX(batch, xR, xC, d);\n      }\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int batch = coords[0];\n        int d = coords[3];\n\n        ivec2 xRCCorner = coords.yz * strides - pads;\n        int xRCorner = xRCCorner.x;\n        int xCCorner = xRCCorner.y;\n\n        // max/min x(?, ?, d) to get y(yR, yC, d).\n        // ? = to be determined\n        vec4 minMaxValue = vec4("+f+");\n        float avgValue = 0.0;\n        count = 0.0;\n\n        for (int wR = 0; wR < "+u+";\n            wR += "+a+") {\n          int xR = xRCorner + wR;\n\n          if (xR < 0 || xR >= "+t.inHeight+") {\n            continue;\n          }\n\n          for (int wC = 0; wC < "+m+"; wC += 4) {\n            int xC = xCCorner + wC * "+s+";\n\n            vec4 values = vec4(\n              getValue(batch, xR, xC, d),\n              getValue(batch, xR, xC + "+s+", d),\n              getValue(batch, xR, xC + 2 * "+s+", d),\n              getValue(batch, xR, xC + 3 * "+s+", d)\n            );\n\n            "+g+"\n          }\n\n          int xC = xCCorner + "+m+";\n          if ("+(1===v)+") {\n            vec4 values = vec4(\n              getValue(batch, xR, xC, d),\n              initializationValue,\n              initializationValue,\n              initializationValue\n            );\n\n            "+g+"\n          } else if ("+(2===v)+") {\n            vec4 values = vec4(\n              getValue(batch, xR, xC, d),\n              getValue(batch, xR, xC + "+s+", d),\n              initializationValue,\n              initializationValue\n            );\n\n            "+g+"\n          } else if ("+(3===v)+") {\n            vec4 values = vec4(\n              getValue(batch, xR, xC, d),\n              getValue(batch, xR, xC + "+s+", d),\n              getValue(batch, xR, xC + 2 * "+s+", d),\n              initializationValue\n            );\n\n            "+g+"\n          }\n        }\n        setOutput("+d+");\n      }\n    "}},eo=function(t,e){this.variableNames=["x"];var n=t.windowSize,r=t.batchSize,o=t.inSize,i=Math.ceil(o/n);this.outputShape=[r,i];var a="0.0",s="";"prod"===e?a="1.0":"min"===e?(a="1.0 / 0.0",s="min"):"max"===e&&(a="-1.0 / 0.0",s="max");var u=e+"("+e+"("+e+"(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])";"sum"===e?u="sumValue":"prod"===e?u="prodValue":"all"===e?u="allValue":"any"===e&&(u="anyValue");var c=4*Math.floor(n/4),l=n%4,h="\n      if ("+("sum"===e)+") {\n        sumValue += dot(values, ones);\n      } else if ("+("prod"===e)+") {\n        vec2 tmp = vec2(values[0], values[1]) * vec2(values[2], values[3]);\n        prodValue *= tmp[0] * tmp[1];\n      } else {\n        minMaxValue = "+s+"(values, minMaxValue);\n      }\n    ",p="vec4";"all"===e?(a="1.0",h="\n        bool reducedAllValue = all(values);\n        float floatedReducedAllValue = float(reducedAllValue);\n        allValue = float(allValue >= 1.0 && floatedReducedAllValue >= 1.0);\n      ",p="bvec4"):"any"===e&&(a="0.0",h="\n        bool reducedAnyValue = any(values);\n        float floatedReducedAnyValue = float(reducedAnyValue);\n        anyValue = float(anyValue >= 1.0 || floatedReducedAnyValue >= 1.0);\n      ",p="bvec4");var f="";0<o%n&&(f="\n        if (inIdx < 0 || inIdx >= "+o+") {\n          return initializationValue;\n        }\n      "),this.userCode="\n      const float initializationValue = "+a+";\n      const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0);\n\n      float getValue(int batch, int inIdx) {\n        "+f+"\n        return getX(batch, inIdx);\n      }\n\n      void main() {\n        ivec2 coords = getOutputCoords();\n        int batch = coords[0];\n        int outIdx = coords[1];\n        int inOffset = outIdx * "+n+";\n\n        vec4 minMaxValue = vec4("+a+");\n        float prodValue = 1.0;\n        float sumValue = 0.0;\n        float allValue = 1.0;\n        float anyValue = 0.0;\n\n        for (int i = 0; i < "+c+"; i += 4) {\n          int inIdx = inOffset + i;\n          "+p+" values = "+p+"(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            getValue(batch, inIdx + 2),\n            getValue(batch, inIdx + 3)\n          );\n\n          "+h+"\n        }\n\n        int inIdx = inOffset + "+c+";\n        if ("+(1===l)+") {\n          "+p+" values = "+p+"(\n            getValue(batch, inIdx),\n            initializationValue,\n            initializationValue,\n            initializationValue\n          );\n\n          "+h+"\n        } else if ("+(2===l)+") {\n          "+p+" values = "+p+"(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            initializationValue,\n            initializationValue\n          );\n\n          "+h+"\n        } else if ("+(3===l)+") {\n          "+p+" values = "+p+"(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            getValue(batch, inIdx + 2),\n            initializationValue\n          );\n\n          "+h+"\n        }\n        setOutput("+u+");\n      }\n    "},no=function(t,e,n){this.variableNames=["dy"],this.outputShape=[],this.outputShape=e.shape;var r=e.shape,o=r[1],i=r[2],a=t.shape,s=a[1],u=a[2],c=[n&&1<s?o-1:o,n&&1<u?i-1:i],l=[n&&1<s?s-1:s,n&&1<u?u-1:u],h=c[0]/l[0],p=c[1]/l[1],f=1/h,d=1/p,m=2*Math.ceil(f)+2,v=2*Math.ceil(d)+2;this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n        int r = coords[1];\n        int c = coords[2];\n\n        float accumulator = 0.0;\n\n        const float heightScale = float("+h+");\n        const float widthScale = float("+p+");\n\n        const float invHeightScale = float("+f+");\n        const float invWidthScale = float("+d+");\n\n        const int winHeight = int("+m+");\n        const int winWidth = int("+v+");\n\n        // Compute bounds for where in dy we will look\n        float startRLerp = floor(float(r) * invHeightScale);\n        int startDyR = int(startRLerp - float(winHeight / 2));\n\n        float startCLerp = floor(float(c) * invWidthScale);\n        int startDyC = int(startCLerp - float(winWidth / 2));\n\n        // Loop over dy\n        for (int dyROffset = 0; dyROffset < winHeight; dyROffset++) {\n          int dyR = dyROffset + startDyR;\n\n          // Guard against the window exceeding the bounds of dy\n          if (dyR < 0 || dyR >= "+s+") {\n            continue;\n          }\n\n          for (int dyCOffset = 0; dyCOffset < winWidth; dyCOffset++) {\n            int dyC = dyCOffset + startDyC;\n\n            // Guard against the window exceeding the bounds of dy\n            if (dyC < 0 || dyC >= "+u+") {\n              continue;\n            }\n\n            float dxR = float(dyR) * heightScale;\n            int topDxRIndex = int(floor(dxR));\n            int bottomDxRIndex = int(min(ceil(dxR), "+(o-1)+".0));\n            float dxRLerp = dxR - float(topDxRIndex);\n            float inverseDxRLerp = 1.0 - dxRLerp;\n\n            float dxC = float(dyC) * widthScale;\n            int leftDxCIndex = int(floor(dxC));\n            int rightDxCIndex = int(min(ceil(dxC), "+(i-1)+".0));\n            float dxCLerp = dxC - float(leftDxCIndex);\n            float inverseDxCLerp = 1.0 - dxCLerp;\n\n            if (r == topDxRIndex && c == leftDxCIndex) {\n              // topLeft\n              accumulator +=\n                getDy(b, dyR, dyC, d) * inverseDxRLerp * inverseDxCLerp;\n            }\n\n            if (r == topDxRIndex && c == rightDxCIndex) {\n              // topRight\n              accumulator += getDy(b, dyR, dyC, d) * inverseDxRLerp * dxCLerp;\n            }\n\n            if (r == bottomDxRIndex && c == leftDxCIndex) {\n              // bottomLeft\n              accumulator += getDy(b, dyR, dyC, d) * dxRLerp * inverseDxCLerp;\n            }\n\n            if (r == bottomDxRIndex && c == rightDxCIndex) {\n              // bottomRight\n              accumulator += getDy(b, dyR, dyC, d) * dxRLerp * dxCLerp;\n            }\n          }\n        }\n        // End loop over dy\n\n        setOutput(accumulator);\n      }\n    "},ro=function(t,e,n,r){this.variableNames=["A"],this.outputShape=[];var o=t[0],i=t[1],a=t[2],s=t[3];this.outputShape=[o,e,n,s];var u=[r&&1<e?i-1:i,r&&1<n?a-1:a],c=[r&&1<e?e-1:e,r&&1<n?n-1:n];this.userCode="\n      const vec2 effectiveInputOverOutputRatioRC = vec2(\n          "+u[0]/c[0]+",\n          "+u[1]/c[1]+");\n      const vec2 inputShapeRC = vec2("+i+".0, "+a+".0);\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n        ivec2 yRC = coords.yz;\n\n        // Fractional source index.\n        vec2 sourceFracIndexRC = vec2(yRC) * effectiveInputOverOutputRatioRC;\n\n        // Compute the four integer indices.\n        ivec2 sourceFloorRC = ivec2(sourceFracIndexRC);\n        ivec2 sourceCeilRC = ivec2(\n          min(inputShapeRC - 1.0, ceil(sourceFracIndexRC)));\n\n        float topLeft = getA(b, sourceFloorRC.x, sourceFloorRC.y, d);\n        float bottomLeft = getA(b, sourceCeilRC.x, sourceFloorRC.y, d);\n        float topRight = getA(b, sourceFloorRC.x, sourceCeilRC.y, d);\n        float bottomRight = getA(b, sourceCeilRC.x, sourceCeilRC.y, d);\n\n        vec2 fracRC = sourceFracIndexRC - vec2(sourceFloorRC);\n\n        float top = topLeft + (topRight - topLeft) * fracRC.y;\n        float bottom = bottomLeft + (bottomRight - bottomLeft) * fracRC.y;\n        float newValue = top + (bottom - top) * fracRC.x;\n\n        setOutput(newValue);\n      }\n    "},oo=function(t,e,n){this.variableNames=["dy"],this.outputShape=[],this.outputShape=e.shape;var r=e.shape,o=r[1],i=r[2],a=t.shape,s=a[1],u=a[2],c=[n&&1<s?o-1:o,n&&1<u?i-1:i],l=[n&&1<s?s-1:s,n&&1<u?u-1:u],h=c[0]/l[0],p=c[1]/l[1],f=1/h,d=1/p,m=2*Math.ceil(f)+2,v=2*Math.ceil(d)+2;this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n        int r = coords[1];\n        int c = coords[2];\n\n        float accumulator = 0.0;\n\n        const float heightScale = float("+h+");\n        const float widthScale = float("+p+");\n\n        const float invHeightScale = float("+f+");\n        const float invWidthScale = float("+d+");\n\n        const int winHeight = int("+m+");\n        const int winWidth = int("+v+");\n\n        // Compute bounds for where in dy we will look\n        float startRLerp = floor(float(r) * invHeightScale);\n        int startDyR = int(floor(startRLerp - float(winHeight / 2)));\n\n        float startCLerp = floor(float(c) * invWidthScale);\n        int startDyC = int(floor(startCLerp - float(winWidth / 2)));\n\n        // Loop over dy\n        for (int dyROffset = 0; dyROffset < winHeight; dyROffset++) {\n          int dyR = dyROffset + startDyR;\n\n          // Guard against the window exceeding the bounds of dy\n          if (dyR < 0 || dyR >= "+s+") {\n            continue;\n          }\n\n          for (int dyCOffset = 0; dyCOffset < winWidth; dyCOffset++) {\n            int dyC = dyCOffset + startDyC;\n\n            // Guard against the window exceeding the bounds of dy\n            if (dyC < 0 || dyC >= "+u+") {\n              continue;\n            }\n\n            float sourceFracRow =\n              float("+c[0]+") *\n                (float(dyR) / float("+l[0]+"));\n\n            float sourceFracCol =\n                float("+c[1]+") *\n                  (float(dyC) / float("+l[1]+"));\n\n            int sourceNearestRow = int(min(\n                float(int("+o+") - 1),\n                "+n+" ? float(round(sourceFracRow)) :\n                                  float(floor(sourceFracRow))));\n\n            int sourceNearestCol = int(min(\n                float(int("+i+") - 1),\n                "+n+" ? float(round(sourceFracCol)) :\n                                  float(floor(sourceFracCol))));\n\n            if (r == sourceNearestRow && c == sourceNearestCol) {\n              accumulator += getDy(b, dyR, dyC, d);\n            }\n          }\n        }\n        // End loop over dy\n\n        setOutput(accumulator);\n      }\n    "},io=function(t,e,n,r){this.variableNames=["A"],this.outputShape=[];var o=t[0],i=t[1],a=t[2],s=t[3];this.outputShape=[o,e,n,s];var u=[r&&1<e?i-1:i,r&&1<n?a-1:a],c=[r&&1<e?e-1:e,r&&1<n?n-1:n],l=r?"0.5":"0.0";this.userCode="\n      const vec2 effectiveInputOverOutputRatioRC = vec2(\n          "+u[0]/c[0]+",\n          "+u[1]/c[1]+");\n      const vec2 inputShapeRC = vec2("+i+".0, "+a+".0);\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n        ivec2 yRC = coords.yz;\n\n        // Fractional source index.\n        vec2 sourceFracIndexRC = vec2(yRC) * effectiveInputOverOutputRatioRC;\n\n        // Compute the coordinators of nearest neighbor point.\n        ivec2 sourceNearestRC = ivec2(\n          min(inputShapeRC - 1.0, floor(sourceFracIndexRC + "+l+")));\n\n        float newValue = getA(b, sourceNearestRC.x, sourceNearestRC.y, d);\n\n        setOutput(newValue);\n      }\n    "},ao=function(r,o){this.variableNames=["x"];var t=r.length;if(4<t)throw new Error("WebGL backend: Reverse of rank-"+t+" tensor is not yet supported");if(this.outputShape=r,1!==t){var e=r.map(function(t,e){return n=e,-1!==o.indexOf(n)&&1!==r[n]?r[n]+" - coords["+n+"] - 1":"coords["+n+"]";var n}).join(","),n=vn(t);this.userCode="\n      void main() {\n        "+n+" coords = getOutputCoords();\n        setOutput(getX("+e+"));\n      }\n    "}else this.userCode="\n        void main() {\n          int coord = getOutputCoords();\n          setOutput(getX("+r[0]+" - coord - 1));\n        }\n      "},so=function(t,e,n,r,o,i,a){void 0===a&&(a=!0),this.variableNames=["updates","indices","defaultValue"],this.outputShape=i;var s=vn(o.length),u=vn(i.length),c="";1===n?c="i":2===n&&(c="i, j");var l="getIndices("+c+")",h="";1===r?h="i":2===r&&(h="i, coords[1]");var p="getUpdates("+h+")",f=1<e?"strides[j]":"strides";this.userCode="\n        "+s+" strides = "+s+"("+o+");\n\n        void main() {\n          "+u+" coords = getOutputCoords();\n          float sum = 0.0;\n          bool found = false;\n          for (int i = 0; i < "+t+"; i++) {\n            int flattenedIndex = 0;\n            for (int j = 0; j < "+e+"; j++) {\n              int index = round("+l+");\n              flattenedIndex += index * "+f+";\n            }\n            if (flattenedIndex == coords[0]) {\n              sum += "+p+";\n              found = true;\n            }\n          }\n          setOutput(mix(getDefaultValue(), sum, float(found)));\n        }\n      "},uo=function(t,e){this.variableNames=["x","segmentIds"];var n=t.windowSize,r=t.batchSize,o=t.inSize,i=t.numSegments,a=i*Math.ceil(o/n);this.outputShape=[r,a];var s=4*Math.floor(n/4),u=n%4,c="\n        sumValue += dot(values, filter);\n    ",l="";0<o%n&&(l="\n        if (inIdx < 0 || inIdx >= "+o+") {\n          return initializationValue;\n        }\n      ");var h="";0<o%n&&(h="\n        if (inIdx < 0 || inIdx >= "+o+") {\n          return -1.0;\n        }\n      "),this.userCode="\n      const float initializationValue = 0.0;\n\n      float getValue(int batch, int inIdx) {\n        "+l+"\n        return getX(batch, inIdx);\n      }\n\n      float getSegmentIdAtIndex(int inIdx) {\n        "+h+"\n        return getSegmentIds(inIdx);\n      }\n\n      void main() {\n        ivec2 coords = getOutputCoords();\n        int batch = coords[0];\n        int outIdx = coords[1];\n        int inOffset = int(floor(float(outIdx) / float(\n          "+i+")) * float("+n+"));\n        int currentSeg = int(mod(float(outIdx), float("+i+")));\n\n        float sumValue = 0.0;\n\n        for (int i = 0; i < "+s+"; i += 4) {\n          int inIdx = inOffset + i;\n          vec4 values = vec4(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            getValue(batch, inIdx + 2),\n            getValue(batch, inIdx + 3)\n          );\n\n          vec4 filter = vec4(\n            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 2)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 3)) == currentSeg ? 1 : 0\n          );\n\n          "+c+"\n        }\n\n        int inIdx = inOffset + "+s+";\n        if ("+(1===u)+") {\n          vec4 values = vec4(\n            getValue(batch, inIdx),\n            initializationValue,\n            initializationValue,\n            initializationValue\n          );\n\n          int inIdxSeg = int(getSegmentIdAtIndex(inIdx));\n\n          vec4 filter = vec4(\n            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,\n            0,\n            0,\n            0\n          );\n\n          "+c+"\n        } else if ("+(2===u)+") {\n          vec4 values = vec4(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            initializationValue,\n            initializationValue\n          );\n\n          vec4 filter = vec4(\n            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,\n              0,\n              0\n          );\n\n          "+c+"\n        } else if ("+(3===u)+") {\n          vec4 values = vec4(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            getValue(batch, inIdx + 2),\n            initializationValue\n          );\n\n          vec4 filter = vec4(\n            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 2)) == currentSeg ? 1 : 0,\n            0\n          );\n\n          "+c+"\n        }\n        setOutput(sumValue);\n      }\n    "},co=function(t,e,n){var r,o;if(this.variableNames=["c","a","b"],this.outputShape=e,4<n)throw Error("Where for rank "+n+" is not yet supported");if(1===n)r=o="resRC";else{for(var i=["resRC.x","resRC.y","resRC.z","resRC.w"],a=[],s=[],u=0;u<e.length;u++)s.push(""+i[u]),u<t&&a.push(""+i[u]);r=a.join(),o=s.join()}var c=vn(n);this.userCode="\n      void main() {\n        "+c+" resRC = getOutputCoords();\n        float cVal = getC("+r+");\n        if (cVal >= 1.0) {\n          setOutput(getA("+o+"));\n        } else {\n          setOutput(getB("+o+"));\n        }\n      }\n    "},lo=function(){function t(t){this.variableNames=["source"],this.outputShape=t,this.rank=t.length;var e=vn(this.rank),n=function(t){if(1===t)return"sourceLoc";if(2===t)return"sourceLoc.x, sourceLoc.y";if(3===t)return"sourceLoc.x, sourceLoc.y, sourceLoc.z";if(4===t)return"sourceLoc.x, sourceLoc.y, sourceLoc.z, sourceLoc.w";throw Error("Slicing for rank "+t+" is not yet supported")}(this.rank);this.userCode="\n      uniform "+e+" start;\n\n      void main() {\n        "+e+" sourceLoc = start + getOutputCoords();\n        setOutput(getSource("+n+"));\n      }\n    "}return t.prototype.getCustomSetupFunc=function(n){var r=this;if(n.length!==this.rank)throw Error("The rank ("+this.rank+") of the program must match the length of start ("+n.length+")");return function(t,e){if(null!=r.startLoc||(r.startLoc=t.getUniformLocationNoThrow(e,"start"),null!=r.startLoc))if(1===r.rank)t.gl.uniform1i(r.startLoc,n[0]);else if(2===r.rank)t.gl.uniform2i(r.startLoc,n[0],n[1]);else if(3===r.rank)t.gl.uniform3i(r.startLoc,n[0],n[1],n[2]);else{if(4!==r.rank)throw Error("Slicing for rank "+r.rank+" is not yet supported");t.gl.uniform4i(r.startLoc,n[0],n[1],n[2],n[3])}}},t}();var ho=function(t,e,n,r){this.variableNames=["x"];var o=n.filter(function(t,e){return-1===r.indexOf(e)});this.outputShape=o;var i=n.length,a=vn(n.length),s=vn(o.length),u="";if(1===i)u="coords * strides + begin";else{var c=0;u=n.map(function(t,e){return-1===r.indexOf(e)?(c++,1===o.length?"coords * strides["+e+"] + begin["+e+"]":"coords["+(c-1)+"] * strides["+e+"] + begin["+e+"]"):"begin["+e+"]"}).join(",")}this.userCode="\n      "+a+" begin = "+a+"("+t+");\n      "+a+" strides = "+a+"("+e+");\n\n      void main() {\n        "+s+" coords = getOutputCoords();\n        setOutput(getX("+u+"));\n      }\n    "},po=function(){function t(t){this.gpgpu=t,this.numUsedTextures=0,this.numFreeTextures=0,this.freeTextures={},this.logEnabled=!1,this.usedTextures={}}return t.prototype.acquireTexture=function(t,e,n){var r,o=fo(e,n),i=mo(t,o,n);if(i in this.freeTextures||(this.freeTextures[i]=[]),i in this.usedTextures||(this.usedTextures[i]=[]),0<this.freeTextures[i].length){this.numFreeTextures--,this.numUsedTextures++,this.log();var a=this.freeTextures[i].shift();return this.usedTextures[i].push(a),a}return this.numUsedTextures++,this.log(),o===In.PACKED_2X2_FLOAT32?r=this.gpgpu.createPackedMatrixTexture(t[0],t[1]):o===In.PACKED_2X2_FLOAT16?r=this.gpgpu.createFloat16PackedMatrixTexture(t[0],t[1]):o===In.UNPACKED_FLOAT32?r=this.gpgpu.createFloat32MatrixTexture(t[0],t[1]):o===In.UNPACKED_FLOAT16?r=this.gpgpu.createFloat16MatrixTexture(t[0],t[1]):o===In.PACKED_4X1_UNSIGNED_BYTE&&(r=this.gpgpu.createUnsignedBytesMatrixTexture(t[0],t[1])),this.usedTextures[i].push(r),r},t.prototype.releaseTexture=function(t,e,n,r){if(null!=this.freeTextures){var o=mo(e,fo(n,r),r);o in this.freeTextures||(this.freeTextures[o]=[]),this.freeTextures[o].push(t),this.numFreeTextures++,this.numUsedTextures--;var i=this.usedTextures[o],a=i.indexOf(t);if(a<0)throw new Error("Cannot release a texture that was never provided by this texture manager");i.splice(a,1),this.log()}},t.prototype.log=function(){if(this.logEnabled){var t=this.numFreeTextures+this.numUsedTextures;console.log("Free/Used",this.numFreeTextures+" / "+this.numUsedTextures,"("+t+")")}},t.prototype.getNumUsedTextures=function(){return this.numUsedTextures},t.prototype.getNumFreeTextures=function(){return this.numFreeTextures},t.prototype.dispose=function(){var e=this;if(null!=this.freeTextures){for(var t in this.freeTextures)this.freeTextures[t].forEach(function(t){e.gpgpu.deleteMatrixTexture(t)});for(var t in this.usedTextures)this.usedTextures[t].forEach(function(t){e.gpgpu.deleteMatrixTexture(t)});this.freeTextures=null,this.usedTextures=null,this.numUsedTextures=0,this.numFreeTextures=0}},t}();function fo(t,e){if(e)return mt.get("WEBGL_RENDER_FLOAT32_ENABLED")?In.PACKED_2X2_FLOAT32:In.PACKED_2X2_FLOAT16;if(t===kn.DOWNLOAD||t===kn.PIXELS)return In.PACKED_4X1_UNSIGNED_BYTE;if(t===kn.UPLOAD)return In.UNPACKED_FLOAT32;if(t===kn.RENDER)return mt.get("WEBGL_RENDER_FLOAT32_ENABLED")?In.UNPACKED_FLOAT32:In.UNPACKED_FLOAT16;throw new Error("Unknown logical texture type "+t)}function mo(t,e,n){return t[0]+"_"+t[1]+"_"+e+"_"+n}var vo=function(t,e){this.variableNames=["A"];for(var n=new Array(t.length),r=0;r<n.length;r++)n[r]=t[r]*e[r];this.outputShape=n,this.rank=n.length;var o=vn(this.rank),i=function(t){var e=t.length;if(5<e)throw Error("Tile for rank "+e+" is not yet supported");if(1===e)return"imod(resRC, "+t[0]+")";for(var n=["resRC.x","resRC.y","resRC.z","resRC.w","resRC.u"],r=[],o=0;o<t.length;o++)r.push("imod("+n[o]+", "+t[o]+")");return r.join()}(t);this.userCode="\n      void main() {\n        "+o+" resRC = getOutputCoords();\n        setOutput(getA("+i+"));\n      }\n    "};var go=function(t,e){this.variableNames=["A"];for(var n=new Array(t.length),r=0;r<n.length;r++)n[r]=t[e[r]];this.outputShape=n,this.rank=n.length;var o=vn(this.rank),i=function(t){var e=t.length;if(6<e)throw Error("Transpose for rank "+e+" is not yet supported");for(var n=["resRC.x","resRC.y","resRC.z","resRC.w","resRC.u","resRC.v"],r=new Array(e),o=0;o<t.length;o++)r[t[o]]=n[o];return r.join()}(e);this.userCode="\n    void main() {\n      "+o+" resRC = getOutputCoords();\n      setOutput(getA("+i+"));\n    }\n    "};var yo=1.7580993408473768,xo=1.0507009873554805,bo=function(){function t(t,e){this.variableNames=["A"],this.outputShape=t,this.userCode="\n      uniform float NAN;\n      float unaryOperation(float x) {\n        "+e+"\n      }\n\n      void main() {\n        float x = getAAtOutCoords();\n        float y = unaryOperation(x);\n\n        setOutput(y);\n      }\n    "}return t.prototype.getCustomSetupFunc=function(){var n=this;return function(t,e){null==n.startLoc&&(n.startLoc=t.getUniformLocationNoThrow(e,"NAN"),null==n.startLoc)||t.gl.uniform1f(n.startLoc,NaN)}},t}(),wo="if (isNaN(x)) return x;";var 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Please use float32 or int32 tensors.");if(u<0||255<c)throw new Error("Tensor values for a int32 Tensor must be in the range [0 - 255] but got range ["+u+" - "+c+"].")}return[4,e.data()];case 3:for(l=t.sent(),h="float32"===e.dtype?255:1,p=new Uint8ClampedArray(o*r*4),f=0;f<r*o;++f)g=v=m=d=void 0,1===i?(d=l[f]*h,m=l[f]*h,v=l[f]*h,g=255):3===i?(d=l[3*f]*h,m=l[3*f+1]*h,v=l[3*f+2]*h,g=255):4===i&&(d=l[4*f]*h,m=l[4*f+1]*h,v=l[4*f+2]*h,g=l[4*f+3]*h),p[0+(y=4*f)]=Math.round(d),p[y+1]=Math.round(m),p[y+2]=Math.round(v),p[y+3]=Math.round(g);return null!=E&&(E.width=o,E.height=r,x=E.getContext("2d"),b=new ImageData(p,o,r),x.putImageData(b,0,0)),e!==w&&e.dispose(),[2,p]}})})}function Wo(t,e,n){return void 0===e&&(e="float32"),new H(t,e,n)}function Uo(t,e){void 0===e&&(e=!1),console.log(t.toString(e))}var Vo=Yt({batchToSpaceND_:function(t,e,n){var r=Kt(t,"x","batchToSpaceND"),o=e.reduce(function(t,e){return t*e});return D(r.rank>=1+e.length,"input rank is "+r.rank+" but should be > than blockShape.length "+e.length),D(n.length===e.length,"crops.length is "+n.length+" but should be equal to blockShape.length  "+e.length),D(r.shape[0]%o==0,"input tensor batch is "+r.shape[0]+" but is not divisible by the product of the elements of blockShape "+e.join(" * ")+" === "+o),mt.engine.runKernel(function(t){return t.batchToSpaceND(r,e,n)},{$x:r},function(t){return{$x:function(){return t.spaceToBatchND(e,n)}}})}}),Go=Yt({cast_:function(t,e){var n=Kt(t,"x","cast");return mt.engine.runKernel(function(t){return t.cast(n,e)},{$x:n},function(t){return{$x:function(){return t.clone()}}})}}),qo=Yt({clone_:function(t){var e=Kt(t,"x","clone");return mt.engine.runKernel(function(t){return Y.make(e.shape,{dataId:e.dataId},e.dtype)},{$x:e},function(t){return{$x:function(){return t.toFloat()}}})}}),jo=Yt({cumsum_:function(t,e,n,r){void 0===e&&(e=0),void 0===n&&(n=!1),void 0===r&&(r=!1);var o=Kt(t,"x","cumsum"),i=Ft([e|=0],o.rank),a=o;null!=i&&(a=o.transpose(i));var s=Bt(1,o.rank)[0],u=mt.engine.runKernel(function(t){return t.cumsum(a,s,n,r)},{permutedX:a},function(t){return{permutedX:function(){return t.cumsum(e,n,!r)}}});return null!=i&&(u=u.transpose(i)),u}}),Ho=Yt({depthToSpace_:function(t,e,n){void 0===n&&(n="NHWC");var r=Kt(t,"x","depthToSpace"),o="NHWC"===n?r.shape[1]:r.shape[2],i="NHWC"===n?r.shape[2]:r.shape[3],a="NHWC"===n?r.shape[3]:r.shape[1];return D(0<=o*e,"Negative dimension size caused by overflow when multiplying\n      "+o+" and "+e+"  for depthToSpace with input shape\n      "+r.shape),D(0<=i*e,"Negative dimension size caused by overflow when multiplying\n      "+i+" and "+e+" for depthToSpace with input shape\n          "+r.shape),D(a%(e*e)==0,"Dimension size must be evenly divisible by "+e*e+" but is "+a+" for depthToSpace with input shape "+r.shape),mt.engine.runKernel(function(t){return t.depthToSpace(r,e,n)},{$x:r})}}),$o=Yt({expandDims_:function(t,e){void 0===e&&(e=0);var n=Kt(t,"x","expandDims");D(e<=n.rank,"Axis must be <= rank of the tensor");var r=n.shape.slice();return e<0&&(D(-(n.rank+1)<=e,"Axis must be in the interval ["+-(n.rank+1)+", "+n.rank+"]"),e=n.rank+e+1),r.splice(e,0,1),ai(n,r)}}),Ko=Yt({eye_:function(t,e,n,r){void 0===r&&(r="float32"),null==e&&(e=t);for(var o=Wo([t,e],r),i=t<=e?t:e,a=0;a<i;++a)o.set(1,a,a);var s=o.toTensor().as2D(t,e);if(null==n)return s;if(1===n.length)return li($o(s,0),[n[0],1,1]);if(2===n.length)return li($o($o(s,0),0),[n[0],n[1],1,1]);if(3===n.length)return li($o($o($o(s,0),0),0),[n[0],n[1],n[2],1,1]);throw new Error("eye() currently supports only 1D and 2D batchShapes, but received "+n.length+"D.")}}),Xo=Yt({fromPixels_:function(t,e){if(void 0===e&&(e=3),4<e)throw new Error("Cannot construct Tensor with more than 4 channels from pixels.");return mt.engine.fromPixels(t,e)}}),Yo=Yt({multinomial_:function(t,e,n,r){void 0===r&&(r=!1);var o=Kt(t,"logits","multinomial"),i=o.size,a=o.rank;if(i<2)throw new Error("Error in multinomial: you need at least 2 outcomes, but got "+i+".");if(2<a)throw new Error("Rank of probabilities must be 1 or 2, but is "+a);n=n||Math.random();var s=1===a?o.as2D(1,-1):o,u=mt.engine.runKernel(function(t){return t.multinomial(s,r,e,n)},{logits2D:s});return 1===a?u.as1D():u}}),Qo=Yt({oneHot_:function(t,e,n,r){void 0===n&&(n=1),void 0===r&&(r=0);var o=Kt(t,"indices","oneHot","int32");if(D("int32"===o.dtype,"Indices must be of dtype `int32`"),e<2)throw new Error("Error in oneHot: depth must be >=2, but it is "+e);return mt.engine.runKernel(function(t){return t.oneHot(o,e,n,r)},{$indices:o},function(t){return{$indices:function(){return Te(o)}}})}}),Jo=Yt({pad_:function(t,e,n){void 0===n&&(n=0);var r=Kt(t,"x","pad");if(0===r.rank)throw new Error("pad(scalar) is not defined. Pass non-scalar to pad");var o=e.map(function(t){return t[0]});return mt.engine.runKernel(function(t){return t.pad(r,e,n)},{$x:r},function(t){return{$x:function(){return t.slice(o,r.shape)}}})}}),Zo=Yt({pad1d_:function(t,e,n){return void 0===n&&(n=0),D(2===e.length,"Invalid number of paddings. Must be length of 2."),Jo(t,[e],n)}}),ti=Yt({pad2d_:function(t,e,n){return void 0===n&&(n=0),D(2===e.length&&2===e[0].length&&2===e[1].length,"Invalid number of paddings. Must be length of 2 each."),Jo(t,e,n)}}),ei=Yt({pad3d_:function(t,e,n){return void 0===n&&(n=0),D(3===e.length&&2===e[0].length&&2===e[1].length&&2===e[2].length,"Invalid number of paddings. Must be length of 2 each."),Jo(t,e,n)}}),ni=Yt({pad4d_:function(t,e,n){return void 0===n&&(n=0),D(4===e.length&&2===e[0].length&&2===e[1].length&&2===e[2].length&&2===e[3].length,"Invalid number of paddings. Must be length of 2 each."),Jo(t,e,n)}}),ri=Yt({rand_:function(t,e,n){var r=B(t),o=null;if(null==n||"float32"===n)o=new Float32Array(r);else if("int32"===n)o=new Int32Array(r);else{if("bool"!==n)throw new Error("Unknown data type "+n);o=new Uint8Array(r)}for(var i=0;i<r;i++)o[i]=e();return Y.make(t,{values:o},n)}}),oi=Yt({randomNormal_:function(t,e,n,r,o){if(void 0===e&&(e=0),void 0===n&&(n=1),null!=r&&"bool"===r)throw new Error("Unsupported data type "+r);for(var i=new Bo(e,n,r,!1,o),a=Wo(t,r),s=0;s<a.values.length;s++)a.values[s]=i.nextValue();return a.toTensor()}}),ii=Yt({randomUniform_:function(t,e,n,r){void 0===e&&(e=0),void 0===n&&(n=1),void 0===r&&(r="float32");for(var o=Wo(t,r),i=0;i<o.values.length;i++)o.values[i]=a(e,n);return o.toTensor()}}),ai=Yt({reshape_:function(t,e){var n=Kt(t,"x","reshape");return e=g(e,n.size),D(n.size===B(e),"new shape and old shape must have the same number of elements."),mt.engine.runKernel(function(t){return t.reshape(n,e)},{$x:n},function(t){return{$x:function(){return t.reshape(n.shape)}}})}}),si=Yt({spaceToBatchND_:function(t,r,o){var e=Kt(t,"x","spaceToBatchND");return D(e.rank>=1+r.length,"input rank "+e.rank+" should be > than [blockShape] "+r.length),D(o.length===r.length,"paddings.shape[0] "+o.length+" must be equal to [blockShape] "+r.length),D(e.shape.reduce(function(t,e,n){return 0<n&&n<=r.length?t&&(e+o[n-1][0]+o[n-1][1])%r[n-1]==0:t},!0),"input spatial dimensions "+e.shape.slice(1)+" with paddings "+o.toString()+" must be divisible by blockShapes "+r.toString()),mt.engine.runKernel(function(t){return t.spaceToBatchND(e,r,o)},{$x:e},function(t){return{$x:function(){return t.batchToSpaceND(r,o)}}})}}),ui=Yt({squeeze_:function(t,e){var n=Kt(t,"x","squeeze");return ai(n,y(n.shape,e).newShape)}}),ci=Yt({stack_:function(t,e){void 0===e&&(e=0);var n=Xt(t,"tensors","stack");if(D(1<=n.length,"Pass at least one tensor to tf.stack"),1===n.length)return n[0].expandDims(e);var r=n[0].rank,o=n[0].shape,i=n[0].dtype;D(e<=r,"Axis must be <= rank of the tensor"),n.forEach(function(t){f(o,t.shape,"All tensors passed to stack must have matching shapes")}),n.forEach(function(t){D(i===t.dtype,"All tensors passed to stack must have matching dtypes")});var a=n.map(function(t){return t.expandDims(e)});return So(a,e)}}),li=Yt({tile_:function(t,a){var s=Kt(t,"x","tile");return D(s.rank===a.length,"Error in transpose: rank of input "+s.rank+" must match length of reps "+a+"."),mt.engine.runKernel(function(t){return t.tile(s,a)},{$x:s},function(i){return{$x:function(){var t=Te(s);if(1===s.rank)for(var e=0;e<a[0];++e)t=t.add(i.slice([e*s.shape[0]],[s.shape[0]]));else if(2===s.rank)for(e=0;e<a[0];++e)for(var n=0;n<a[1];++n)t=t.add(i.slice([e*s.shape[0],n*s.shape[1]],[s.shape[0],s.shape[1]]));else if(3===s.rank)for(e=0;e<a[0];++e)for(n=0;n<a[1];++n)for(var r=0;r<a[2];++r)t=t.add(i.slice([e*s.shape[0],n*s.shape[1],r*s.shape[2]],[s.shape[0],s.shape[1],s.shape[2]]));else{if(4!==s.rank)throw new Error("Gradient for tile operation is not implemented for rank-"+s.rank+" tensors yet.");for(e=0;e<a[0];++e)for(n=0;n<a[1];++n)for(r=0;r<a[2];++r)for(var o=0;o<a[3];++o)t=t.add(i.slice([e*s.shape[0],n*s.shape[1],r*s.shape[2],o*s.shape[3]],[s.shape[0],s.shape[1],s.shape[2],s.shape[3]]))}return t}}})}}),hi=Yt({truncatedNormal_:function(t,e,n,r,o){if(void 0===e&&(e=0),void 0===n&&(n=1),null!=r&&"bool"===r)throw new Error("Unsupported data type "+r);for(var i=new Bo(e,n,r,!0,o),a=Wo(t,r),s=0;s<a.values.length;s++)a.values[s]=i.nextValue();return a.toTensor()}}),pi=Yt({unstack_:function(t,n){void 0===n&&(n=0);for(var e,r=Kt(t,"x","unstack"),o=r.shape[n],i=Array(r.rank-1).fill(0),a=0,s=0;s<r.rank;s++)s!==n&&(i[a]=r.shape[s],a++);e=Array(o).fill(1);var u=Array(r.rank).fill(0),c=r.shape.slice();return e.map(function(t){c[n]=t;var e=r.slice(u,c);return u[n]+=t,e.reshape(i)})}});function fi(t,e){for(var n=[],r=0;r<e.length;r++)e[r]&&n.push(r);var o=Wo(t,"int32"),i=Wo([n.length,t.length],"int32");for(r=0;r<n.length;r++){var a=o.indexToLoc(n[r]),s=r*t.length;i.values.set(a,s)}return i.toTensor()}var di=function(){function t(t,e){if(void 0===e&&(e=!0),this.gpgpu=t,this.delayedStorage=e,this.pendingRead=new WeakMap,this.pendingDisposal=new WeakSet,this.lruDataGPU=[],this.numBytesInGPU=0,this.uploadWaitMs=0,this.downloadWaitMs=0,this.binaryCache={},this.disposed=!1,mt.get("WEBGL_VERSION")<1)throw new Error("WebGL is not supported on this device");mt.get("IS_BROWSER")&&(this.canvas=document.createElement("canvas")),null==t?(this.gpgpu=new Wr(yr(this.canvas)),this.gpgpuCreatedLocally=!0):this.gpgpuCreatedLocally=!1,mt.get("WEBGL_PAGING_ENABLED")&&(this.NUM_BYTES_BEFORE_PAGING=window.screen.height*window.screen.width*window.devicePixelRatio*300),this.textureManager=new po(this.gpgpu)}return t.prototype.register=function(t,e,n){if(this.texData.has(t))throw new Error("Data buffer is already registered");this.texData.set(t,{shape:e,dtype:n,values:null,texture:null,complexTensors:null,texShape:null,usage:kn.RENDER,isPacked:!1})},t.prototype.setDataMover=function(t){this.texData=new Ne(t)},t.prototype.fromPixels=function(t,e){if(null==t)throw new Error("pixels passed to tf.fromPixels() can not be null");var n=[t.height,t.width],r=[t.height,t.width,e];if(!(t instanceof HTMLVideoElement||t instanceof HTMLImageElement||t instanceof HTMLCanvasElement||t instanceof ImageData))throw new Error("pixels passed to tf.fromPixels() must be either an HTMLVideoElement, HTMLImageElement, HTMLCanvasElement or ImageData, but was "+t.constructor.name);if(t instanceof HTMLVideoElement){if(null==this.fromPixelsCanvas){if(!mt.get("IS_BROWSER"))throw new Error("Can't read pixels from HTMLImageElement outside the browser.");if("complete"!==document.readyState)throw new Error("The DOM is not ready yet. Please call tf.fromPixels() once the DOM is ready. One way to do that is to add an event listener for `DOMContentLoaded` on the document object");this.fromPixelsCanvas=document.createElement("canvas")}this.fromPixelsCanvas.width=t.width,this.fromPixelsCanvas.height=t.height,this.fromPixelsCanvas.getContext("2d").drawImage(t,0,0,t.width,t.height),t=this.fromPixelsCanvas}var o=this.makeTensorHandle(n,"int32");this.texData.get(o.dataId).usage=kn.PIXELS,this.gpgpu.uploadPixelDataToTexture(this.getTexture(o.dataId),t);var i=new Rn(r),a=this.compileAndRun(i,[o]);return this.disposeData(o.dataId),a},t.prototype.makeTensorHandle=function(t,e){var n={};return this.register(n,t,e),{dataId:n,shape:t,dtype:e}},t.prototype.write=function(t,e){if(null==e)throw new Error("MathBackendWebGL.write(): values can not be null");var n=this.texData.get(t),r=n.texture,o=n.texShape,i=n.usage,a=n.dtype,s=n.isPacked;if("complex64"===a)throw new Error("Cannot write to a complex64 dtype. Please use tf.complex(real, imag).");null!=r&&(this.releaseTexture(t,r,o,i,s),n.texture=null,n.texShape=null),n.usage=kn.UPLOAD,n.values=e,this.delayedStorage||this.uploadToGPU(t)},t.prototype.readSync=function(t){var e=this.texData.get(t),n=e.values,r=e.dtype,o=e.complexTensors;if(null!=n)return this.cacheOnCPU(t),n;var i,a,s=null!=this.activeTimers;return s&&(i=performance.now()),a="complex64"===r?Oe(o.real.dataSync(),o.imag.dataSync()):this.getValuesFromTexture(t),s&&(this.downloadWaitMs+=performance.now()-i),this.cacheOnCPU(t,a),e.values},t.prototype.read=function(c){return m(this,void 0,void 0,function(){var e,n,r,o,i,a,s,u;return S(this,function(t){switch(t.label){case 0:if(this.pendingRead.has(c))return e=this.pendingRead.get(c),[2,new Promise(function(t){return e.push(t)})];if(n=this.texData.get(c),r=n.texture,o=n.values,i=n.texShape,null!=o)return this.cacheOnCPU(c),[2,o];if(this.pendingRead.set(c,[]),!mt.get("WEBGL_DOWNLOAD_FLOAT_ENABLED")&&2===mt.get("WEBGL_VERSION"))throw new Error("tensor.data() with WEBGL_DOWNLOAD_FLOAT_ENABLED=false and WEBGL_VERSION=2 not yet supported.");return a=this.gpgpu.maybeCreateBufferFromTexture(r,i[0],i[1]),[4,this.gpgpu.createAndWaitForFence()];case 1:return t.sent(),s=a instanceof WebGLTexture?this.getValuesFromTexture(c):this.gpgpu.downloadFloat32MatrixFromBuffer(a,i[0],i[1]),this.cacheOnCPU(c,s),u=this.pendingRead.get(c),this.pendingRead.delete(c),u.forEach(function(t){return t(s)}),this.pendingDisposal.has(c)&&(this.pendingDisposal.delete(c),this.disposeData(c)),[2,s]}})})},t.prototype.getValuesFromTexture=function(t){var e=this.texData.get(t),n=e.shape,r=e.dtype,o=e.texture,i=e.texShape;if(mt.get("WEBGL_DOWNLOAD_FLOAT_ENABLED")){if(this.texData.get(t).isPacked){var a=B(n.slice(0,n.length-2)),s=1<n.length?n[n.length-2]:1,u=n[n.length-1];return this.gpgpu.downloadMatrixFromPackedTexture(o,a,s,u,i[0],i[1])}return this.gpgpu.downloadFloat32MatrixFromOutputTexture(o,i[0],i[1])}var c=this.makeTensorHandle(n,"float32");c.size=B(n),this.texData.get(c.dataId).usage=kn.DOWNLOAD;var l=new En(n);this.compileAndRun(l,[{shape:n,dtype:r,dataId:t}],c,null,!1);var h=this.texData.get(c.dataId),p=this.gpgpu.downloadByteEncodedFloatMatrixFromOutputTexture(h.texture,h.texShape[0],h.texShape[1]);return this.disposeData(c.dataId),p},t.prototype.time=function(u){return m(this,void 0,void 0,function(){var e,n,r,o,i,a,s;return S(this,function(t){switch(t.label){case 0:return e=this.activeTimers,r=!(n=[]),null==this.programTimersStack?(this.programTimersStack=n,r=!0):this.activeTimers.push(n),this.activeTimers=n,u(),o=l(this.activeTimers.map(function(t){return t.query})).filter(function(t){return null!=t}),i=l(this.activeTimers.map(function(t){return t.name})).filter(function(t){return null!=t}),this.activeTimers=e,r&&(this.programTimersStack=null),[4,Promise.all(o)];case 1:return a=t.sent(),s={uploadWaitMs:this.uploadWaitMs,downloadWaitMs:this.downloadWaitMs,kernelMs:c(a),getExtraProfileInfo:function(){return a.map(function(t,e){return{name:i[e],ms:t}}).map(function(t){return t.name+": "+t.ms}).join(", ")},wallMs:null},this.uploadWaitMs=0,this.downloadWaitMs=0,[2,s]}})})},t.prototype.memory=function(){return{unreliable:!1,numBytesInGPU:this.numBytesInGPU}},t.prototype.startTimer=function(){return 0<mt.get("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")?this.gpgpu.beginQuery():{startMs:performance.now(),endMs:null}},t.prototype.endTimer=function(t){return 0<mt.get("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")?this.gpgpu.endQuery():t.endMs=performance.now(),t},t.prototype.getQueryTime=function(n){return m(this,void 0,void 0,function(){var e;return S(this,function(t){return 0<mt.get("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")?[2,this.gpgpu.waitForQueryAndGetTime(n)]:[2,(e=n).endMs-e.startMs]})})},t.prototype.disposeData=function(t){if(!this.pendingDisposal.has(t))if(this.pendingRead.has(t))this.pendingDisposal.add(t);else if(this.texData.has(t)){var e=this.texData.get(t),n=e.texture,r=e.texShape,o=e.usage,i=e.complexTensors,a=e.isPacked;null!=n&&this.releaseTexture(t,n,r,o,a),null!=i&&(i.real.dispose(),i.imag.dispose()),this.texData.delete(t)}},t.prototype.getTexture=function(t){return this.uploadToGPU(t),this.texData.get(t).texture},t.prototype.getGPGPUContext=function(){return this.gpgpu},t.prototype.getCanvas=function(){return this.canvas},t.prototype.complex=function(t,e){var n=this.makeOutputArray(t.shape,"complex64");return this.texData.get(n.dataId).complexTensors={real:mt.engine.keep(t.clone()),imag:mt.engine.keep(e.clone())},n},t.prototype.real=function(t){return this.texData.get(t.dataId).complexTensors.real.clone()},t.prototype.imag=function(t){return this.texData.get(t.dataId).complexTensors.imag.clone()},t.prototype.slice=function(t,e,n){var r=new lo(n),o=r.getCustomSetupFunc(e);return this.compileAndRun(r,[t],null,o)},t.prototype.stridedSlice=function(t,e,n,r,o,i,a,s,u){var c=qt(t.shape,e,n,r,o,i,a,s,u),l=c[0],h=c[1],p=c[2],f=h.filter(function(t,e){return-1===p.indexOf(e)});if(f.some(function(t){return 0===t}))return ee([],f);var d=new ho(l,r,h,p);return this.compileAndRun(d,[t])},t.prototype.reverse=function(t,e){var n=new ao(t.shape,e);return this.compileAndRun(n,[t])},t.prototype.concat2Tensors=function(t,e,n){var r=zt([t.shape,e.shape],n),o=t.as2D(-1,B(t.shape.slice(n))),i=e.as2D(-1,B(e.shape.slice(n))),a=new en(o.shape,i.shape);return this.compileAndRun(a,[o,i]).reshape(r)},t.prototype.concat=function(t,e){if(1===t.length)return t[0];for(var n=t[0],r=1;r<t.length;++r)n=this.concat2Tensors(n,t[r],e);return n},t.prototype.neg=function(t){var e=new bo(t.shape,"return -x;");return this.compileAndRun(e,[t])},t.prototype.batchMatMul=function(t,e,n,r){var o=n?t.shape[2]:t.shape[1],i=r?e.shape[1]:e.shape[2];if(1!==t.shape[0]||1!==e.shape[0])return this.compileAndRun(new Hr(t.shape,e.shape,n,r),[t,e]);var a=t.as2D(t.shape[1],t.shape[2]),s=e.as2D(e.shape[1],e.shape[2]),u=new $r(a.shape,s.shape,[o,i],n,r),c=this.unpackTensor(this.compileAndRun(u,[a,s],this.makePackedTensor(u.outputShape)));return c.reshape([1,c.shape[0],c.shape[1]])},t.prototype.multiply=function(t,e){if("complex64"===t.dtype){var n=this.texData.get(t.dataId),r=this.texData.get(e.dataId),o=new Xe($e,t.shape,e.shape),i=new Xe(Ke,t.shape,e.shape),a=[this.makeComplexComponentTensorHandle(t,n.complexTensors.real),this.makeComplexComponentTensorHandle(t,n.complexTensors.imag),this.makeComplexComponentTensorHandle(e,r.complexTensors.real),this.makeComplexComponentTensorHandle(e,r.complexTensors.imag)],s=this.compileAndRun(o,a),u=this.compileAndRun(i,a),c=this.complex(s,u);return s.dispose(),u.dispose(),c}var l=new Je("return a * b;",t.shape,e.shape),h=this.makeOutputArray(l.outputShape,t.dtype);return this.compileAndRun(l,[t,e],h)},t.prototype.batchNormalization=function(t,e,n,r,o,i){var a=[t,e,n],s=null;null!=i&&(s=i.shape,a.push(i));var u=null;null!=o&&(u=o.shape,a.push(o));var c=null,l=qe;mt.get("WEBGL_PACK_BATCHNORMALIZATION")&&(c=this.makePackedTensor(t.shape),l=je);var h=new l(t.shape,e.shape,n.shape,s,u,r);return this.compileAndRun(h,a,c)},t.prototype.localResponseNormalization4D=function(t,e,n,r,o){var i=new Gr(t.shape,e,n,r,o);return this.compileAndRun(i,[t])},t.prototype.LRNGrad=function(t,e,n,r,o,i,a){var s=new qr(e.shape,r,o,i,a);return this.compileAndRun(s,[e,n,t])},t.prototype.tile=function(t,e){var n=new vo(t.shape,e);return this.compileAndRun(n,[t])},t.prototype.pad=function(t,e,n){var r=new Zr(t.shape,e,n);return this.compileAndRun(r,[t])},t.prototype.transpose=function(t,e){var n=new go(t.shape,e);return this.compileAndRun(n,[t])},t.prototype.gather=function(t,e,n){var r=new Tn(t.shape,e.size,n);return this.compileAndRun(r,[t,e])},t.prototype.batchToSpaceND=function(t,e,n){D(t.rank<=4,"batchToSpaceND for rank > 4 with a WebGL backend not implemented yet");var r=e.reduce(function(t,e){return t*e}),o=Rt(t.shape,e,r),i=Tt(o.length,e.length),a=kt(t.shape,e,r),s=It(n,e.length),u=Dt(a,n,e.length);return t.reshape(o).transpose(i).reshape(a).slice(s,u)},t.prototype.spaceToBatchND=function(t,e,n){D(t.rank<=4,"spaceToBatchND for rank > 4 with a WebGL backend not implemented yet");var r=e.reduce(function(t,e){return t*e}),o=[[0,0]];o.push.apply(o,n);for(var i=1+e.length;i<t.shape.length;++i)o.push([0,0]);var a=t.pad(o),s=Rt(a.shape,e,r,!1),u=Tt(s.length,e.length,!1),c=kt(a.shape,e,r,!1);return a.reshape(s).transpose(u).reshape(c)},t.prototype.reduce=function(t,e,n){var r=t.shape[0],o=t.shape[1],i=Ut(o),a=new eo({windowSize:i,inSize:o,batchSize:r},e),s=a.outputShape,u=s[0],c=s[1],l=this.makeOutputArray([u,c],n);return this.compileAndRun(a,[t],l),1===l.shape[1]?l:this.reduce(l,e,n)},t.prototype.argReduce=function(t,e,n){void 0===n&&(n=null);var r=t.shape[0],o=t.shape[1];null!=n&&(r=n.shape[0],o=n.shape[1]);var i=Ut(o),a=new ze({windowSize:i,inSize:o,batchSize:r},e,null==n),s=a.outputShape,u=s[0],c=s[1],l=this.makeOutputArray([u,c],"int32"),h=[t];return null!=n&&h.push(n),this.compileAndRun(a,h,l),1===l.shape[1]?l:this.argReduce(t,e,l)},t.prototype.sum=function(t,e){Pt("sum",e,t.rank);var n=At(t.shape,e),r=n[0],o=B(n[1]),i=t.as2D(-1,o),a=De(t.dtype);return this.reduce(i,"sum",a).reshape(r)},t.prototype.prod=function(t,e){var n=At(t.shape,e),r=n[0],o=B(n[1]),i=t.as2D(-1,o),a=De(t.dtype);return this.reduce(i,"prod",a).reshape(r)},t.prototype.unsortedSegmentSum=function(t,e,n){var r=0,o=Ft([r],t.rank),i=t;null!=o&&(i=t.transpose(o),r=Bt(1,t.rank)[0]);var a=function(t,e,n){for(var r=[],o=t.length,i=0;i<o;i++)i!==e?r.push(t[i]):r.push(n);return r}(i.shape,r,n),s=B([i.shape[r]]),u=i.as2D(-1,s),c=De(t.dtype),l=this.segOpCompute(u,"unsortedSegmentSum",e,c,n).reshape(a);return null!=o&&(l=l.transpose(Lt(o))),l},t.prototype.segOpCompute=function(t,e,n,r,o){var i=t.shape[0],a=t.shape[1],s=function(t,e){var n,r=!1;for(t<=30?(n=t,r=!0):n=I(t,Math.floor(Math.sqrt(t)));!r;){if(e<n||n===t){r=!0;break}n=I(t,n+1)}return n}(a,o),u=new uo({windowSize:s,inSize:a,batchSize:i,numSegments:o},e),c=u.outputShape,l=c[0],h=c[1],p=this.makeOutputArray([l,h],r);return this.compileAndRun(u,[t,n],p),p.shape[1]===o?p:(n=fe(0,o).tile([a/s]),this.segOpCompute(p,e,n,r,o))},t.prototype.argMin=function(t,e){var n=[e];Pt("argMin",n,t.rank);var r=At(t.shape,n),o=r[0],i=B(r[1]),a=t.as2D(-1,i);return this.argReduce(a,"min").reshape(o)},t.prototype.argMax=function(t,e){var n=[e];Pt("argMax",n,t.rank);var r=At(t.shape,n),o=r[0],i=B(r[1]),a=t.as2D(-1,i);return this.argReduce(a,"max").reshape(o)},t.prototype.cumsum=function(t,e,n,r){if(e!==t.rank-1)throw new Error("WebGL cumsum shader expects an inner-most axis="+(t.rank-1)+" but got axis="+e);var o=new xn(t.shape,n,r);return this.compileAndRun(o,[t])},t.prototype.equal=function(t,e){var n=new Je("return float(a == b);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},t.prototype.notEqual=function(t,e){var n=new Je("return float(a != b);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},t.prototype.less=function(t,e){var n=new Je("return float(a < b);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},t.prototype.lessEqual=function(t,e){var n=new Je("return float(a <= b);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},t.prototype.greater=function(t,e){var n=new Je("return float(a > b);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},t.prototype.greaterEqual=function(t,e){var n=new Je("return float(a >= b);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},t.prototype.logicalNot=function(t){var e=new bo(t.shape,"return float(!(x >= 1.0));");return this.compileAndRun(e,[t])},t.prototype.logicalAnd=function(t,e){var n=new Je("return float(a >= 1.0 && b >= 1.0);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},t.prototype.logicalOr=function(t,e){var n=new Je("return float(a >= 1.0 || b >= 1.0);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},t.prototype.select=function(t,e,n){var r=new co(t.rank,e.shape,e.rank),o=this.makeOutputArray(r.outputShape,Ie(e.dtype,n.dtype));return this.compileAndRun(r,[t,e,n],o)},t.prototype.where=function(t){Ct("tf.where() in webgl locks the UI thread. Call tf.whereAsync() instead");var e=t.dataSync();return fi(t.shape,e)},t.prototype.topk=function(t,e,n){return Be(t.dataSync(),t.shape,t.dtype,e)},t.prototype.min=function(t,e){Pt("min",e,t.rank);var n=At(t.shape,e),r=n[0],o=B(n[1]),i=t.as2D(-1,o);return this.reduce(i,"min",i.dtype).reshape(r)},t.prototype.minimum=function(t,e){var n=new Je("\n  if (isNaN(a)) return a;\n  if (isNaN(b)) return b;\n\n  return min(a, b);\n",t.shape,e.shape);return this.compileAndRun(n,[t,e])},t.prototype.mod=function(t,e){var n=new Je("if (b == 0.0) return NAN;\n  return mod(a, b);",t.shape,e.shape),r=n.getCustomSetupFunc();return this.compileAndRun(n,[t,e],null,r)},t.prototype.max=function(t,e){Pt("max",e,t.rank);var n=At(t.shape,e),r=n[0],o=B(n[1]),i=t.as2D(-1,o);return this.reduce(i,"max",i.dtype).reshape(r)},t.prototype.maximum=function(t,e){var n=new Je("\n  if (isNaN(a)) return a;\n  if (isNaN(b)) return b;\n\n  return max(a, b);\n",t.shape,e.shape);return this.compileAndRun(n,[t,e])},t.prototype.all=function(t,e){Pt("all",e,t.rank);var n=At(t.shape,e),r=n[0],o=B(n[1]),i=t.as2D(-1,o);return this.reduce(i,"all",i.dtype).reshape(r)},t.prototype.any=function(t,e){Pt("any",e,t.rank);var n=At(t.shape,e),r=n[0],o=B(n[1]),i=t.as2D(-1,o);return this.reduce(i,"any",i.dtype).reshape(r)},t.prototype.squaredDifference=function(t,e){var n=new Je("return (a - b) * (a - b);",t.shape,e.shape);return this.compileAndRun(n,[t,e])},t.prototype.realDivide=function(t,e){var n=new Je("if (a == b) return 1.0;\n  return a / b;",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"float32");return this.compileAndRun(n,[t,e],r)},t.prototype.floorDiv=function(t,e){var n=new Je("\n  float resultSign = sign(a) * sign(b);\n  int ia = round(a);\n  int ib = round(b);\n  int result = ia / ib;\n  int amodb = ia - ib * result;\n\n  if (resultSign < 0.0 && amodb != 0) {\n    result -= 1;\n  }\n  return float(result);\n",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"int32");return this.compileAndRun(n,[t,e],r)},t.prototype.add=function(t,e){if("complex64"===t.dtype&&"complex64"===e.dtype)return this.complexSeparableBinaryOp(t,e,Ye);var n=new Je(Ye,t.shape,e.shape),r=this.makeOutputArray(n.outputShape,Ie(t.dtype,e.dtype));return this.compileAndRun(n,[t,e],r)},t.prototype.complexSeparableBinaryOp=function(s,u,c){var l=this,t=this.texData.get(s.dataId),e=this.texData.get(u.dataId),n=[[t.complexTensors.real,e.complexTensors.real],[t.complexTensors.imag,e.complexTensors.imag]].map(function(t){var e=t[0],n=t[1],r=new Je(c,s.shape,u.shape),o=l.makeOutputArray(r.outputShape,Ie(e.dtype,n.dtype)),i=l.makeComplexComponentTensorHandle(s,e),a=l.makeComplexComponentTensorHandle(u,n);return l.compileAndRun(r,[i,a],o)}),r=n[0],o=n[1],i=this.complex(r,o);return r.dispose(),o.dispose(),i},t.prototype.makeComplexComponentTensorHandle=function(t,e){return{dataId:e.dataId,dtype:e.dtype,shape:t.shape}},t.prototype.addN=function(t){for(var e=t[0],n=1;n<t.length;n++)e=this.add(e,t[n]);return e},t.prototype.subtract=function(t,e){if("complex64"===t.dtype&&"complex64"===e.dtype)return this.complexSeparableBinaryOp(t,e,Qe);var n=new Je(Qe,t.shape,e.shape),r=this.makeOutputArray(n.outputShape,Ie(t.dtype,e.dtype));return this.compileAndRun(n,[t,e],r)},t.prototype.pow=function(t,e){var n=new Je("\nif(a < 0.0 && floor(b) < b){\n  return NAN;\n}\nreturn (round(mod(b, 2.0)) == 0 || round(mod(b, 2.0)) == 2) ?\n    pow(abs(a), b) : sign(a) * pow(abs(a), b);\n",t.shape,e.shape),r=n.getCustomSetupFunc(),o=this.makeOutputArray(n.outputShape,Ie(t.dtype,e.dtype));return this.compileAndRun(n,[t,e],o,r)},t.prototype.ceil=function(t){var e=new bo(t.shape,"return ceil(x);");return this.compileAndRun(e,[t])},t.prototype.floor=function(t){var e=new bo(t.shape,"return floor(x);");return this.compileAndRun(e,[t])},t.prototype.sign=function(t){var e=new bo(t.shape,"\n  if (isNaN(x)) { return 0.0; }\n  return sign(x);\n");return this.compileAndRun(e,[t])},t.prototype.round=function(t){var e=new bo(t.shape,"\n  // OpenGL ES does not support round function.\n  // The algorithm is based on banker's rounding.\n  float base = floor(x);\n  if ((x - base) < 0.5) {\n    return floor(x);\n  } else if ((x - base) > 0.5) {\n    return ceil(x);\n  } else {\n    if (mod(base, 2.0) == 0.0) {\n      return base;\n    } else {\n      return base + 1.0;\n    }\n  }\n");return this.compileAndRun(e,[t])},t.prototype.exp=function(t){var e=new bo(t.shape,"return exp(x);");return this.compileAndRun(e,[t])},t.prototype.expm1=function(t){var e=new bo(t.shape,"return exp(x) - 1.0;");return this.compileAndRun(e,[t])},t.prototype.log=function(t){var e=new bo(t.shape,"if (x < 0.0) return NAN;\n  return log(x);"),n=e.getCustomSetupFunc();return this.compileAndRun(e,[t],null,n)},t.prototype.log1p=function(t){var e=new bo(t.shape,"return log(1.0 + x);");return this.compileAndRun(e,[t])},t.prototype.sqrt=function(t){var e=new bo(t.shape,"return sqrt(x);");return this.compileAndRun(e,[t])},t.prototype.rsqrt=function(t){var e=new bo(t.shape,"return inversesqrt(x);");return this.compileAndRun(e,[t])},t.prototype.square=function(t){var e=new bo(t.shape,"return x * x;");return this.compileAndRun(e,[t])},t.prototype.reciprocal=function(t){var e=new bo(t.shape,"return 1.0 / x;");return this.compileAndRun(e,[t])},t.prototype.relu=function(t){var e=new bo(t.shape,"if (isNaN(x)) return x;\n  return (x < 0.0) ? 0.0 : x;\n");return this.compileAndRun(e,[t])},t.prototype.elu=function(t){var e=new bo(t.shape,"return (x >= 0.0) ? x : (exp(x) - 1.0);");return this.compileAndRun(e,[t])},t.prototype.eluDer=function(t,e){var n=new Je("return (b >= 1.0) ? a : a * (b + 1.0);",t.shape,e.shape);return this.compileAndRun(n,[t,e])},t.prototype.selu=function(t){var e=new bo(t.shape,"\n  // Stable and Attracting Fixed Point (0, 1) for Normalized Weights.\n  // see: https://arxiv.org/abs/1706.02515\n  float scaleAlpha = 1.7580993408473768;\n  float scale = 1.0507009873554805;\n  return (x >= 0.0) ? scale * x : scaleAlpha * (exp(x) - 1.0);\n");return this.compileAndRun(e,[t])},t.prototype.int=function(t){var e=new bo(t.shape,"return float(int(x));"),n=this.makeOutputArray(e.outputShape,"int32");return this.compileAndRun(e,[t],n)},t.prototype.clip=function(t,e,n){var r=new Ze(t.shape,e,n);return this.compileAndRun(r,[t])},t.prototype.abs=function(t){if("complex64"===t.dtype){var e=this.texData.get(t.dataId),n=new tn(t.shape),r=[this.makeComplexComponentTensorHandle(t,e.complexTensors.real),this.makeComplexComponentTensorHandle(t,e.complexTensors.imag)];return this.compileAndRun(n,r)}var o=new bo(t.shape,"return abs(x);");return this.compileAndRun(o,[t])},t.prototype.sigmoid=function(t){var e=new bo(t.shape,"return 1.0 / (1.0 + exp(-1.0 * x));");return this.compileAndRun(e,[t])},t.prototype.softplus=function(t){var e=new bo(t.shape,"\n  float epsilon = 1.1920928955078125e-7;\n  float threshold = log(epsilon) + 2.0;\n\n  bool too_large = x > -threshold;\n  bool too_small = x < threshold;\n\n  float result;\n  float exp_x = exp(x);\n\n  if (too_large){\n    result = x;\n  }\n  else if (too_small){\n    result = exp_x;\n  }\n  else{\n    result = log(exp_x + 1.0);\n  }\n  return result;\n");return this.compileAndRun(e,[t])},t.prototype.sin=function(t){var e=new bo(t.shape,"if (isNaN(x)) return x;\n  return sin(x);\n");return this.compileAndRun(e,[t])},t.prototype.cos=function(t){var e=new bo(t.shape,"if (isNaN(x)) return x;\n  return cos(x);\n");return this.compileAndRun(e,[t])},t.prototype.tan=function(t){var e=new bo(t.shape,"return tan(x);");return this.compileAndRun(e,[t])},t.prototype.asin=function(t){var e=new bo(t.shape,"return asin(x);");return this.compileAndRun(e,[t])},t.prototype.acos=function(t){var e=new bo(t.shape,"return acos(x);");return this.compileAndRun(e,[t])},t.prototype.atan=function(t){var e=new bo(t.shape,"if (isNaN(x)) return x;\n  return atan(x);\n");return this.compileAndRun(e,[t])},t.prototype.atan2=function(t,e){var n=new Je("\n  if (isNaN(a)) return a;\n  if (isNaN(b)) return b;\n\n  return atan(a, b);\n",t.shape,e.shape);return this.compileAndRun(n,[t,e])},t.prototype.sinh=function(t){var e=new bo(t.shape,"\n  float e2x = exp(x);\n  return (e2x - 1.0 / e2x) / 2.0;\n");return this.compileAndRun(e,[t])},t.prototype.cosh=function(t){var e=new bo(t.shape,"\n  float e2x = exp(-x);\n  return (e2x + 1.0 / e2x) / 2.0;\n");return this.compileAndRun(e,[t])},t.prototype.tanh=function(t){var e=new bo(t.shape,"\n  float e2x = exp(-2.0 * abs(x));\n  return sign(x) * (1.0 - e2x) / (1.0 + e2x);\n");return this.compileAndRun(e,[t])},t.prototype.asinh=function(t){var e=new bo(t.shape,"return log(x + sqrt(x * x + 1.0));");return this.compileAndRun(e,[t])},t.prototype.acosh=function(t){var e=new bo(t.shape,"if (isNaN(x)) return x;\n  if (x < 1.0) return NAN;\n  return log(x + sqrt(x * x - 1.0));"),n=e.getCustomSetupFunc();return this.compileAndRun(e,[t],null,n)},t.prototype.atanh=function(t){var e=new bo(t.shape,"if (isNaN(x)) return x;\n  if ((x < -1.0) || (x > 1.0)) return NAN;\n  return (log(1.0 + x) - log(1.0 - x)) / 2.0;"),n=e.getCustomSetupFunc();return this.compileAndRun(e,[t],null,n)},t.prototype.erf=function(t){var e=new bo(t.shape,'\n  // Error function is calculated approximately with elementary function.\n  // See "Handbook of Mathematical Functions with Formulas,\n  // Graphs, and Mathematical Tables", Abramowitz and Stegun.\n  float p = 0.3275911;\n  float a1 = 0.254829592;\n  float a2 = -0.284496736;\n  float a3 = 1.421413741;\n  float a4 = -1.453152027;\n  float a5 = 1.061405429;\n\n  float t = 1.0 / (1.0 + p * x);\n  return 1.0 - (((((a5*t + a4)*t) + a3)*t + a2)*t + a1)*t*exp(-x*x);\n');return this.compileAndRun(e,[t])},t.prototype.step=function(t,e){var n,r=new bo(t.shape,(void 0===(n=e)&&(n=0),wo+"\n    return x > 0.0 ? 1.0 : float("+n+");\n  "));return this.compileAndRun(r,[t])},t.prototype.conv2dWithIm2Row=function(t,e,n){var r=n.filterWidth,o=n.filterHeight,i=n.inChannels,a=n.outWidth,s=n.outHeight,u=r*o*i,c=s*a,l=[u,c],h=t.squeeze([0]),p=e.reshape([u,-1]),f=new Vr(l,h.shape,n),d=this.compileAndRun(f,[h],this.makePackedTensor(l)),m=new $r(d.shape,p.shape,[c,n.outChannels],!0,!1);return this.unpackTensor(this.compileAndRun(m,[d,p],this.makePackedTensor(m.outputShape))).reshape([1,s,a,n.outChannels])},t.prototype.conv2d=function(t,e,n){if(mt.get("WEBGL_CONV_IM2COL")&&1===t.shape[0])return this.conv2dWithIm2Row(t,e,n);var r=new sn(n);return this.compileAndRun(r,[t,e])},t.prototype.conv2dDerInput=function(t,e,n){var r=new rn(n);return this.compileAndRun(r,[t,e])},t.prototype.conv2dDerFilter=function(t,e,n){var r=new nn(n);return this.compileAndRun(r,[t,e])},t.prototype.depthwiseConv2D=function(t,e,n){var r=new un(n);return this.compileAndRun(r,[t,e])},t.prototype.depthwiseConv2DDerInput=function(t,e,n){var r=new an(n);return this.compileAndRun(r,[t,e])},t.prototype.depthwiseConv2DDerFilter=function(t,e,n){var r=new on(n);return this.compileAndRun(r,[t,e])},t.prototype.maxPool=function(t,e){var n=new to(e,"max",!1),r=this.makeOutputArray(n.outputShape,t.dtype);return this.compileAndRun(n,[t],r)},t.prototype.avgPool=function(t,e){var n=new to(e,"avg",!1),r=this.makeOutputArray(n.outputShape,"float32");return this.compileAndRun(n,[t],r)},t.prototype.maxPoolBackprop=function(t,e,n,r){var o=new to(r,"max",!0),i=this.compileAndRun(o,[e]),a=new jr(r),s=this.makeOutputArray(a.outputShape,e.dtype),u=this.compileAndRun(a,[t,i],s);return i.dispose(),u},t.prototype.avgPoolBackprop=function(t,e,n){var r=new We(n),o=this.makeOutputArray(r.outputShape,e.dtype);return this.compileAndRun(r,[t],o)},t.prototype.cast=function(t,e){return Ae(t,e,this)},t.prototype.reshape=function(t,e){return Me(t,e)},t.prototype.resizeBilinear=function(t,e,n,r){var o=new ro(t.shape,e,n,r);return this.compileAndRun(o,[t])},t.prototype.resizeBilinearBackprop=function(t,e,n){var r=new no(t,e,n);return this.compileAndRun(r,[t])},t.prototype.resizeNearestNeighbor=function(t,e,n,r){var o=new io(t.shape,e,n,r);return this.compileAndRun(o,[t])},t.prototype.resizeNearestNeighborBackprop=function(t,e,n){var r=new oo(t,e,n);return this.compileAndRun(r,[t])},t.prototype.multinomial=function(t,e,n,r){var o=e?t:Qt(t),i=o.shape[0],a=o.shape[1],s=new Kr(i,a,n),u=this.makeOutputArray(s.outputShape,"int32"),c=s.getCustomSetupFunc(r);return this.compileAndRun(s,[o],u,c)},t.prototype.oneHot=function(t,e,n,r){var o=new Xr(t.size,e,n,r);return this.compileAndRun(o,[t])},t.prototype.nonMaxSuppression=function(t,e,n,r,o){return Ct("tf.nonMaxSuppression() in webgl locks the UI thread. 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For complex64 dtypes, please separate the program into real and imaginary parts.");var e=i.texData.get(t.dataId);if(null==e.texture&&(e.isPacked||!o.usesPackedTextures)&&B(t.shape)<=mt.get("WEBGL_SIZE_UPLOAD_UNIFORM"))return{shape:t.shape,texData:null,isUniform:!0,uniformValues:i.readSync(t.dataId)};if(e.isPacked!==!!o.usesPackedTextures){var n=void 0,r=void 0;e.isPacked?(n=new Eo(t.shape),r=i.compileAndRun(n,[t])):(n=new Jr(t.shape),r=i.compileAndRun(n,[t],i.makePackedTensor(t.shape))),e=i.texData.get(r.dataId),t=r}return i.uploadToGPU(t.dataId),{shape:t.shape,texData:e,isUniform:!1}});this.uploadToGPU(e.dataId);var s,u={shape:e.shape,texData:this.texData.get(e.dataId),isUniform:!1},c=function(t,e,n){var r="";e.concat(n).forEach(function(t){r+=t.shape+"_"+(t.isUniform?"uniform":t.texData.texShape)});var o=t.userCode,i=(!0===t.supportsBroadcasting).toString();return t.constructor.name+"_"+i+"_"+r+"_"+o}(o,a,u),l=this.getAndSaveBinary(c,function(){return function(t,r,e,n){for(var o=r.userCode,i=e.map(function(t,e){var n={logicalShape:t.shape,texShape:t.isUniform?null:t.texData.texShape,isUniform:t.isUniform,isPacked:!t.isUniform&&t.texData.isPacked};return{name:r.variableNames[e],shapeInfo:n}}),a=i.map(function(t){return t.shapeInfo}),s={logicalShape:n.shape,texShape:n.texData.texShape,isUniform:!1,isPacked:n.texData.isPacked},u=ln(i,s,o,!0===r.supportsBroadcasting),c=t.createProgram(u),l={},h=0;h<r.variableNames.length;h++){var p=r.variableNames[h];l[p]=t.getUniformLocation(c,p,!1)}return{program:r,source:u,webGLProgram:c,uniformLocations:l,gpgpu:t,inShapeInfos:a,outShapeInfo:s}}(i.gpgpu,o,a,u)}),h=null!=this.activeTimers;if(h&&(s=this.startTimer()),function(a,t,e,n){Ur(a.inShapeInfos,t),Ur([a.outShapeInfo],[e]);var r=e.texData.texture,o=e.texData.texShape,s=a.gpgpu;e.texData.isPacked?s.setOutputPackedMatrixTexture(r,o[0],o[1]):s.setOutputMatrixTexture(r,o[0],o[1]),s.setProgram(a.webGLProgram),t.forEach(function(t,e){var n=a.program.variableNames[e],r=a.uniformLocations[n];if(null!=r){if(t.isUniform){if(1===B(t.shape))s.gl.uniform1f(r,t.uniformValues[0]);else{var o=t.uniformValues;o instanceof Float32Array||(o=new Float32Array(o)),s.gl.uniform1fv(r,o)}return}var i=t.texData.texture;s.setInputMatrixTexture(i,r,e)}}),null!=n&&n(s,a.webGLProgram),s.executeProgram()}(l,a,u,n),mt.get("WEBGL_PAGING_ENABLED")&&r&&this.numBytesInGPU>this.NUM_BYTES_BEFORE_PAGING)for(var p=this.numBytesInGPU-this.NUM_BYTES_BEFORE_PAGING;0<p&&0<this.lruDataGPU.length;){var f=this.lruDataGPU.shift(),d=this.texData.get(f),m=d.shape,v=d.dtype;p-=this.computeBytes(m,v),this.read(f)}return h&&(s=this.endTimer(s),this.activeTimers.push({name:o.constructor.name,query:this.getQueryTime(s)})),e},t.prototype.getAndSaveBinary=function(t,e){return t in this.binaryCache||(this.binaryCache[t]=e()),this.binaryCache[t]},t.prototype.getTextureManager=function(){return this.textureManager},t.prototype.dispose=function(){if(!this.disposed){for(var t in this.binaryCache)this.gpgpu.deleteProgram(this.binaryCache[t].webGLProgram);this.textureManager.dispose(),this.canvas.remove(),null!=this.fromPixelsCanvas&&this.fromPixelsCanvas.remove(),this.gpgpuCreatedLocally&&this.gpgpu.dispose(),this.disposed=!0}},t.prototype.floatPrecision=function(){var t=this;return bt(function(){return 0<t.abs(ne(1e-8)).get()?32:16})},t.prototype.uploadToGPU=function(t){var e=this.texData.get(t),n=e.shape,r=e.values,o=e.texture,i=e.dtype,a=e.usage,s=e.isPacked;if(null==o){var u,c=null!=this.activeTimers;c&&(u=performance.now());var l=mr(n,s);e.texShape=l;var h=this.acquireTexture(t,l,a,s);if(e.texture=h,null!=r){if(s){var p=B(n.slice(0,n.length-2)),f=1<n.length?n[n.length-2]:1,d=n[n.length-1];this.gpgpu.uploadMatrixToPackedTexture(h,p,f,d,mi(r,i))}else this.gpgpu.uploadMatrixToTexture(h,l[0],l[1],mi(r,i));e.values=null,c&&(this.uploadWaitMs+=performance.now()-u)}}else mt.get("WEBGL_PAGING_ENABLED")&&0<=this.lruDataGPU.indexOf(t)&&(this.lruDataGPU.splice(this.lruDataGPU.indexOf(t),1),this.lruDataGPU.push(t))},t.prototype.cacheOnCPU=function(t,e){var n=this.delayedStorage,r=this.texData.get(t),o=r.texture,i=r.texShape,a=r.dtype,s=r.usage,u=r.isPacked;n&&null!=o&&(this.releaseTexture(t,o,i,s,u),r.texture=null,r.texShape=null),r.usage=kn.UPLOAD,null!=e&&(r.values=function(t,e){if("float32"===e||"complex64"===e)return t;if("int32"!==e&&"bool"!==e)throw new Error("Unknown dtype "+e);for(var n="int32"===e?new Int32Array(t.length):new Uint8Array(t.length),r=0;r<n.length;++r)n[r]=Math.round(t[r]);return n}(e,a))},t.prototype.releaseTexture=function(t,e,n,r,o){var i=this.texData.get(t),a=i.shape,s=i.dtype;if(mt.get("WEBGL_PAGING_ENABLED")){var u=this.lruDataGPU.indexOf(t);0<=u&&this.lruDataGPU.splice(u,1)}this.numBytesInGPU-=this.computeBytes(a,s),this.textureManager.releaseTexture(e,n,r,o)},t.prototype.acquireTexture=function(t,e,n,r){var o=this.texData.get(t),i=o.shape,a=o.dtype;return mt.get("WEBGL_PAGING_ENABLED")&&this.lruDataGPU.push(t),this.numBytesInGPU+=this.computeBytes(i,a),this.textureManager.acquireTexture(e,n,r)},t.prototype.computeBytes=function(t,e){return B(t)*R(e)},t}();function mi(t,e){return t instanceof Float32Array?t:new Float32Array(t)}mt.get("IS_BROWSER")&&mt.registerBackend("webgl",function(){return new di},2,X);var vi=Yt({abs_:function(t){var e=Kt(t,"x","abs");return mt.engine.runKernel(function(t){return t.abs(e)},{$x:e},function(t){return{$x:function(){return t.mulStrict(e.toFloat().step(-1))}}})}}),gi=Yt({acos_:function(t){var e=Kt(t,"x","acos");return mt.engine.runKernel(function(t){return t.acos(e)},{$x:e},function(t){return{$x:function(){return t.divStrict(ne(1).sub(e.toFloat().square()).sqrt()).neg()}}})}}),yi=Yt({acosh_:function(t){var e=Kt(t,"x","acosh");return mt.engine.runKernel(function(t){return t.acosh(e)},{$x:e},function(t){return{$x:function(){return 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t.ceil(e)},{$x:e},function(t){return{$x:function(){return Te(t)}}})}}),_i=Yt({clipByValue_:function(t,e,n){var r=Kt(t,"x","clipByValue");return D(e<=n,"Error in clip: min ("+e+") must be less than or equal to max ("+n+")."),mt.engine.runKernel(function(t){return t.clip(r,e,n)},{$x:r},function(t){return{$x:function(){return t.where(r.greaterEqual(ne(e)).logicalAnd(r.lessEqual(ne(n))),Te(t))}}})}}),Ci=Yt({cos_:function(t){var e=Kt(t,"x","cos");return mt.engine.runKernel(function(t){return t.cos(e)},{$x:e},function(t){return{$x:function(){return e.toFloat().sin().neg().mulStrict(t)}}})}}),Ri=Yt({cosh_:function(t){var e=Kt(t,"x","cosh");return mt.engine.runKernel(function(t){return t.cosh(e)},{$x:e},function(t){return{$x:function(){return e.toFloat().sinh().mulStrict(t)}}})}}),Ti=Yt({erf_:function(t){var e=Kt(t,"x","erf");return D("int32"===e.dtype||"float32"===e.dtype,"Input dtype must be `int32` or `float32`."),"int32"===e.dtype&&(e=e.toFloat()),mt.engine.runKernel(function(t){return t.erf(e)},{$x:e},function(t){return{$x:function(){return t.mulStrict(ne(2/Math.sqrt(Math.PI)).mul(e.square().neg().exp()))}}})}}),ki=Yt({exp_:function(t){var n=Kt(t,"x","exp");return mt.engine.runKernel(function(t,e){return e(t.exp(n))},{$x:n},function(t,e){var n=e[0];return{$x:function(){return t.mulStrict(n)}}})}}),Ii=Yt({expm1_:function(t){var e=Kt(t,"x","expm1");return mt.engine.runKernel(function(t){return t.expm1(e)},{$x:e},function(t){return{$x:function(){return t.mulStrict(e.exp())}}})}}),Di=Yt({floor_:function(t){var e=Kt(t,"x","floor");return mt.engine.runKernel(function(t){return t.floor(e)},{$x:e},function(t){return{$x:function(){return Te(t)}}})}}),Ni=Yt({log_:function(t){var e=Kt(t,"x","log");return mt.engine.runKernel(function(t){return t.log(e)},{$x:e},function(t){return{$x:function(){return t.divStrict(e.toFloat())}}})}}),Ai=Yt({log1p_:function(t){var e=Kt(t,"x","log1p");return mt.engine.runKernel(function(t){return t.log1p(e)},{$x:e},function(t){return{$x:function(){return t.divStrict(e.add(ne(1)))}}})}}),Mi=Yt({logSigmoid_:function(t){var e=Kt(t,"x","logSigmoid");return mt.engine.runKernel(function(t){return t.softplus(e.neg()).neg()},{$x:e},function(t){return{$x:function(){return t.mulStrict(e.neg().sigmoid())}}})}}),Oi=Yt({neg_:function(t){var e=Kt(t,"x","neg");return mt.engine.runKernel(function(t){return t.neg(e)},{$x:e},function(t){return{$x:function(){return t.neg()}}})}}),Pi=Yt({reciprocal_:function(t){var e=Kt(t,"x","reciprocal");return mt.engine.runKernel(function(t){return t.reciprocal(e)},{$x:e},function(t){return{$x:function(){return t.divStrict(e.square().neg())}}})}}),Fi=Yt({round_:function(t){var e=Kt(t,"x","round");return mt.engine.runKernel(function(t){return t.round(e)},{$x:e},function(t){return{$x:function(){return Te(t)}}})}}),Li=Yt({rsqrt_:function(t){var e=Kt(t,"x","rsqrt");return mt.engine.runKernel(function(t){return t.rsqrt(e)},{$x:e},function(t){return{$x:function(){return t.divStrict(e.pow(ne(1.5)).mul(ne(2))).neg()}}})}}),Bi=Yt({sigmoid_:function(t){var n=Kt(t,"x","sigmoid");return mt.engine.runKernel(function(t,e){return e(t.sigmoid(n))},{$x:n},function(t,e){var n=e[0];return{$x:function(){return t.mulStrict(n.mul(ne(1).sub(n)))}}})}}),zi=Yt({sign_:function(t){var e=Kt(t,"x","sign");return mt.engine.runKernel(function(t){return t.sign(e)},{$x:e},function(t){return{$x:function(){return Te(t)}}})}}),Wi=Yt({sin_:function(t){var e=Kt(t,"x","sin");return mt.engine.runKernel(function(t){return t.sin(e)},{$x:e},function(t){return{$x:function(){return e.toFloat().cos().mulStrict(t)}}})}}),Ui=Yt({sinh_:function(t){var e=Kt(t,"x","sinh");return mt.engine.runKernel(function(t){return t.sinh(e)},{$x:e},function(t){return{$x:function(){return e.toFloat().cosh().mulStrict(t)}}})}}),Vi=Yt({softplus_:function(t){var e=Kt(t,"x","softplus");return mt.engine.runKernel(function(t){return t.softplus(e)},{$x:e},function(t){return{$x:function(){return t.mulStrict(e.sigmoid())}}})}}),Gi=Yt({sqrt_:function(t){var e=Kt(t,"x","sqrt");return mt.engine.runKernel(function(t){return t.sqrt(e)},{$x:e},function(t){return{$x:function(){return t.divStrict(e.toFloat().sqrt().mul(ne(2)))}}})}}),qi=Yt({square_:function(t){var e=Kt(t,"x","square");return mt.engine.runKernel(function(t){return t.square(e)},{$x:e},function(t){return{$x:function(){return t.mulStrict(e.toFloat().mul(ne(2)))}}})}}),ji=Yt({step_:function(t,e){void 0===e&&(e=0);var n=Kt(t,"x","step");return mt.engine.runKernel(function(t){return t.step(n,e)},{$x:n},function(t){return{$x:function(){return Te(t)}}})}}),Hi=Yt({tan_:function(t){var e=Kt(t,"x","tan");return mt.engine.runKernel(function(t){return t.tan(e)},{$x:e},function(t){return{$x:function(){return t.divStrict(e.cos().square())}}})}}),$i=Yt({tanh_:function(t){var n=Kt(t,"x","tanh");return mt.engine.runKernel(function(t,e){return e(t.tanh(n))},{$x:n},function(t,e){var n=e[0];return{$x:function(){return ne(1).sub(n.square()).mulStrict(t)}}})}});function Ki(t){return null==t?null:0===t.rank?t.as1D():1===t.rank?t:2===t.rank?t.as4D(1,1,t.shape[0],t.shape[1]):3===t.rank?t.as4D(1,t.shape[0],t.shape[1],t.shape[2]):t}var Xi=Yt({batchNormalization2d_:function(t,e,n,r,o,i){void 0===r&&(r=.001);var a,s,u=Kt(t,"x","batchNormalization"),c=Kt(e,"mean","batchNormalization"),l=Kt(n,"variance","batchNormalization");return null!=o&&(a=Kt(o,"scale","batchNormalization")),null!=i&&(s=Kt(i,"offset","batchNormalization")),D(2===u.rank,"Error in batchNormalization3D: x must be rank 3 but got rank "+u.rank+"."),D(2===c.rank||1===c.rank,"Error in batchNormalization2D: mean must be rank 2 or rank 1 but got rank "+c.rank+"."),D(2===l.rank||1===l.rank,"Error in batchNormalization2D: variance must be rank 2 or rank 1 but got rank "+l.rank+"."),null!=a&&D(2===a.rank||1===a.rank,"Error in batchNormalization2D: scale must be rank 2 or rank 1 but got rank "+a.rank+"."),null!=s&&D(2===s.rank||1===s.rank,"Error in batchNormalization2D: offset must be rank 2 or rank 1 but got rank "+s.rank+"."),Ji(u,c,l,r,a,s)}}),Yi=Yt({batchNormalization3d_:function(t,e,n,r,o,i){void 0===r&&(r=.001);var a,s,u=Kt(t,"x","batchNormalization"),c=Kt(e,"mean","batchNormalization"),l=Kt(n,"variance","batchNormalization");return null!=o&&(a=Kt(o,"scale","batchNormalization")),null!=i&&(s=Kt(i,"offset","batchNormalization")),D(3===u.rank,"Error in batchNormalization3D: x must be rank 3 but got rank "+u.rank+"."),D(3===c.rank||1===c.rank,"Error in batchNormalization3D: mean must be rank 3 or rank 1 but got rank "+c.rank+"."),D(3===l.rank||1===l.rank,"Error in batchNormalization3D: variance must be rank 3 or rank 1 but got rank "+l.rank+"."),null!=a&&D(3===a.rank||1===a.rank,"Error in batchNormalization3D: scale must be rank 3 or rank 1 but got rank "+a.rank+"."),null!=s&&D(3===s.rank||1===s.rank,"Error in batchNormalization3D: offset must be rank 3 or rank 1 but got rank "+s.rank+"."),Ji(u,c,l,r,a,s)}}),Qi=Yt({batchNormalization4d_:function(t,e,n,r,o,i){void 0===r&&(r=.001);var a,s,u=Kt(t,"x","batchNormalization"),c=Kt(e,"mean","batchNormalization"),l=Kt(n,"variance","batchNormalization");return null!=o&&(a=Kt(o,"scale","batchNormalization")),null!=i&&(s=Kt(i,"offset","batchNormalization")),D(4===u.rank,"Error in batchNormalization4D: x must be rank 4 but got rank "+u.rank+"."),D(4===c.rank||1===c.rank,"Error in batchNormalization4D: mean must be rank 4 or rank 1 but got rank "+c.rank+"."),D(4===l.rank||1===l.rank,"Error in batchNormalization4D: variance must be rank 4 or rank 1 but got rank "+l.rank+"."),null!=a&&D(4===a.rank||1===a.rank,"Error in batchNormalization4D: scale must be rank 4 or rank 1 but got rank "+a.rank+"."),null!=s&&D(4===s.rank||1===s.rank,"Error in batchNormalization4D: offset must be rank 4 or rank 1 but got rank "+s.rank+"."),Ji(u,c,l,r,a,s)}}),Ji=Yt({batchNormalization_:function(t,e,n,c,r,o){void 0===c&&(c=.001);var l,i,h,p=Kt(t,"x","batchNormalization"),f=Kt(e,"mean","batchNormalization"),d=Kt(n,"variance","batchNormalization");return null!=r&&(l=Kt(r,"scale","batchNormalization")),null!=o&&(i=Kt(o,"offset","batchNormalization")),D(f.rank===d.rank,"Batch normalization gradient requires mean and variance to have equal ranks."),D(null==i||f.rank===i.rank,"Batch normalization gradient requires mean and offset to have equal ranks."),D(null==l||f.rank===l.rank,"Batch normalization gradient requires mean and scale to have equal ranks."),h=0===p.rank||1===p.rank?p.as4D(1,1,1,p.size):2===p.rank?p.as4D(1,1,p.shape[0],p.shape[1]):3===p.rank?p.as4D(1,p.shape[0],p.shape[1],p.shape[2]):p,mt.engine.runKernel(function(t){return t.batchNormalization(h,Ki(f),Ki(d),c,Ki(l),Ki(i))},{$x:p,$mean:f,$variance:d,$scale:l,$offset:i},function(n){var t=null==l?ne(1):l,r=Ve(f.shape,h.shape),e=[];if(1===f.rank){for(var o=0;o<h.shape.length-1;++o)e.push(h.shape[o]);e.push(1)}var i=p.sub(f),a=n.mul(t),s=Li(d.add(ne(c))),u=s.mul(s).mul(s).mul(ne(-.5));return{$x:function(){return 1===f.rank?n.mul(li(s.as4D(1,1,1,f.shape[0]),e)).mul(t).reshape(p.shape):n.mul(s).mul(t).reshape(p.shape)},$mean:function(){var t=s.mul(ne(-1)).mul(a);return 1===f.rank&&(t=t.sum(r)),t.reshape(f.shape)},$variance:function(){var t=u.mul(i).mul(a);return 1===f.rank&&(t=t.sum(r)),t.reshape(f.shape)},$scale:function(){var t=i.mul(s),e=n.mul(t);return 1===f.rank&&(e=e.sum(r)),e.reshape(f.shape)},$offset:function(){var t=n;return 1===f.rank&&(t=t.sum(r)),t.reshape(f.shape)}}}).reshape(p.shape)}});function Zi(t,e,n,r,o,i,a){void 0===a&&(a="channelsLast");var s,u=ea(e),c=u[0],l=u[1];if("channelsLast"===a)s=[c,l,t[3],t[3]];else{if("channelsFirst"!==a)throw new Error("Unknown dataFormat "+a);s=[c,l,t[1],t[1]]}return ta(t,s,n,r,o,i,!1,a)}function ta(t,e,n,r,o,i,a,s){void 0===a&&(a=!1),void 0===s&&(s="channelsLast");var u=[-1,-1,-1,-1],c=u[0],l=u[1],h=u[2],p=u[3];if("channelsLast"===s)c=t[0],l=t[1],h=t[2],p=t[3];else{if("channelsFirst"!==s)throw new Error("Unknown dataFormat "+s);c=t[0],p=t[1],l=t[2],h=t[3]}var f,d=e[0],m=e[1],v=e[3],g=ea(n),y=g[0],x=g[1],b=ea(r),w=b[0],E=b[1],S=na(d,w),_=na(m,E),C=function(t,e,n,r,o,i,a,s){var u,c,l;if("number"==typeof t){u={top:t,bottom:t,left:t,right:t,type:0===t?"VALID":"NUMBER"};var h=function(t,e,n,r,o,i){null==o&&(o=function(t,e,n,r){void 0===r&&(r=1);var o=na(e,r);return Math.floor((t[0]*(n-1)-n+o)/2)}(t,e,r));var a=t[0],s=t[1],u=ra((a-e+2*o)/r+1,i);D(N(u),"The output # of rows ("+u+") must be an integer. Change the stride and/or zero pad parameters");var c=ra((s-e+2*o)/r+1,i);return D(N(c),"The output # of columns ("+c+") must be an integer. Change the stride and/or zero pad parameters"),[u,c,n]}([e,n,1],i,1,r,t,s);c=h[0],l=h[1]}else if("same"===t){var p=((c=Math.ceil(e/r))-1)*r+i-e,f=((l=Math.ceil(n/o))-1)*o+a-n,d=Math.floor(p/2),m=p-d,v=Math.floor(f/2);u={top:d,bottom:m,left:v,right:f-v,type:"SAME"}}else{if("valid"!==t)throw Error("Unknown padding parameter: "+t);u={top:0,bottom:0,left:0,right:0,type:"VALID"},c=Math.ceil((e-i+1)/r),l=Math.ceil((n-a+1)/o)}return{padInfo:u,outHeight:c,outWidth:l}}(o,l,h,y,x,S,_,i),R=C.padInfo,T=C.outHeight,k=C.outWidth,I=a?v*p:v;return"channelsFirst"===s?f=[c,I,T,k]:"channelsLast"===s&&(f=[c,T,k,I]),{batchSize:c,dataFormat:s,inHeight:l,inWidth:h,inChannels:p,outHeight:T,outWidth:k,outChannels:I,padInfo:R,strideHeight:y,strideWidth:x,filterHeight:d,filterWidth:m,effectiveFilterHeight:S,effectiveFilterWidth:_,dilationHeight:w,dilationWidth:E,inShape:t,outShape:f,filterShape:e}}function ea(t){return"number"==typeof t?[t,t]:t}function na(t,e){return e<=1?t:t+(t-1)*(e-1)}function ra(t,e){if(!e)return t;switch(e){case"round":return Math.round(t);case"ceil":return Math.ceil(t);case"floor":return Math.floor(t);default:throw new Error("Unknown roundingMode "+e)}}function oa(t){var e=ea(t),n=e[0],r=e[1];return 1===n&&1===r}function ia(t,e){return oa(t)||oa(e)}var aa=Yt({matMul_:function(t,e,n,r){void 0===n&&(n=!1),void 0===r&&(r=!1);var o=Kt(t,"a","matMul"),i=Kt(e,"b","matMul"),a=n?o.shape[o.rank-2]:o.shape[o.rank-1],s=r?i.shape[i.rank-1]:i.shape[i.rank-2],u=n?o.shape[o.rank-1]:o.shape[o.rank-2],c=r?i.shape[i.rank-2]:i.shape[i.rank-1],l=o.shape.slice(0,-2),h=i.shape.slice(0,-2),p=B(l),f=B(h);D(2<=o.rank&&2<=i.rank&&o.rank===i.rank,"Error in matMul: inputs must have the same rank of at least 2, got ranks "+o.rank+" and "+i.rank+"."),D(T(l,h),"Error in matMul: outer dimensions ("+l+") and ("+h+") of Tensors with shapes "+o.shape+" and "+i.shape+" must match."),D(a===s,"Error in matMul: inner shapes ("+a+") and ("+s+") of Tensors with shapes "+o.shape+" and "+i.shape+" and transposeA="+n+" and transposeB="+r+" must match.");var d=o.shape.slice(0,-2).concat([u,c]),m=n?o.as3D(p,a,u):o.as3D(p,u,a),v=r?i.as3D(f,c,s):i.as3D(f,s,c);return mt.engine.runKernel(function(t){return t.batchMatMul(m,v,n,r)},{$a:m,$b:v},function(t){return n||r?!n&&r?{$a:function(){return t.matMul(v.toFloat(),!1,!1)},$b:function(){return t.matMul(m.toFloat(),!0,!1)}}:n&&!r?{$a:function(){return v.toFloat().matMul(t,!1,!0)},$b:function(){return m.toFloat().matMul(t,!1,!1)}}:{$a:function(){return v.toFloat().matMul(t,!0,!0)},$b:function(){return t.matMul(m.toFloat(),!0,!0)}}:{$a:function(){return t.matMul(v.toFloat(),!1,!0)},$b:function(){return m.toFloat().matMul(t,!0,!1)}}}).reshape(d)}}),sa=Yt({dot_:function(t,e){var n=Kt(t,"t1","dot"),r=Kt(e,"t2","dot");D(!(1!==n.rank&&2!==n.rank||1!==r.rank&&2!==r.rank),"Error in dot: inputs must all be rank 1 or 2, but got ranks "+n.rank+" and "+r.rank+".");var o=1===n.rank?n.size:n.shape[1],i=1===r.rank?r.size:r.shape[0];return D(o===i,"Error in dot: inner dimensions of inputs must match, but got "+o+" and "+i+"."),1===n.rank&&1===r.rank?n.as2D(1,-1).matMul(r.as2D(-1,1)).asScalar():1===n.rank&&2===r.rank?n.as2D(1,-1).matMul(r.as2D(r.shape[0],r.shape[1])).as1D():2===n.rank&&1===r.rank?n.matMul(r.as2D(-1,1)).as1D():n.matMul(r.as2D(r.shape[0],r.shape[1]))}}),ua=Yt({outerProduct_:function(t,e){var n=Kt(t,"v1","outerProduct"),r=Kt(e,"v2","outerProduct");return D(1===n.rank&&1===r.rank,"Error in outerProduct: inputs must be rank 1, but got ranks "+n.rank+" and "+r.rank+"."),n.as2D(-1,1).matMul(r.as2D(1,-1))}});function ca(t,e,n,r,o,i){D(t.length===e.rank,"Length of inShape ("+t.length+") and rank of dy ("+e.rank+") must match");var a=t,s=e,u=!1;3===e.rank&&(u=!0,s=e.as4D(1,e.shape[0],e.shape[1],e.shape[2]),a=[1,t[0],t[1],t[2]]);var c=a[3],l=s.shape[3];D(4===a.length,"Error in conv2dDerInput: inShape must be length 4, but got length "+a.length+"."),D(4===s.rank,"Error in conv2dDerInput: dy must be rank 4, but got rank "+s.rank),D(4===n.rank,"Error in conv2dDerInput: filter must be rank 4, but got rank "+n.rank),D(c===n.shape[2],"Error in conv2dDerInput: depth of input ("+c+") must match input depth for filter "+n.shape[2]+"."),D(l===n.shape[3],"Error in conv2dDerInput: depth of output ("+l+") must match output depth for filter "+n.shape[3]+"."),null!=i&&D(N(o),"Error in conv2dDerInput: pad must be an integer when using, dimRoundingMode "+i+" but got pad "+o+".");var h=ta(a,n.shape,r,1,o,i),p=mt.engine.runKernel(function(t){return t.conv2dDerInput(s,n,h)},{dy4D:s,filter:n},function(t){return{dy4D:function(){return pa(t,n,r,o,"NHWC",1,i)},filter:function(){return fa(t,s,n.shape,r,o,i)}}});return u?p.as3D(p.shape[1],p.shape[2],p.shape[3]):p}function la(t,e,n,r,o,i){var a=t;3===t.rank&&(a=t.as4D(1,t.shape[0],t.shape[1],t.shape[2]));var s=e;3===s.rank&&(s=e.as4D(1,e.shape[0],e.shape[1],e.shape[2])),D(4===a.rank,"Error in conv2dDerFilter: input must be rank 4, but got shape "+a.shape+"."),D(4===s.rank,"Error in conv2dDerFilter: dy must be rank 4, but got shape "+s.shape+"."),D(4===n.length,"Error in conv2dDerFilter: filterShape must be length 4, but got "+n+"."),D(a.shape[3]===n[2],"Error in conv2dDerFilter: depth of input "+a.shape[3]+") must match input depth in filter ("+n[2]+"."),D(s.shape[3]===n[3],"Error in conv2dDerFilter: depth of dy ("+s.shape[3]+") must match output depth for filter ("+n[3]+")."),null!=i&&D(N(o),"Error in conv2dDerFilter: pad must be an integer when using, dimRoundingMode "+i+" but got pad "+o+".");var u=ta(a.shape,n,r,1,o,i);return mt.engine.runKernel(function(t){return t.conv2dDerFilter(a,s,u)},{x4D:a,dy4D:s})}var ha=Yt({conv1d_:function(t,e,n,r,o,i,a){void 0===o&&(o="NWC"),void 0===i&&(i=1);var s=Kt(t,"x","conv1d"),u=Kt(e,"filter","conv1d"),c=s,l=!1;2===s.rank&&(l=!0,c=s.as3D(1,s.shape[0],s.shape[1])),D(3===c.rank,"Error in conv1d: input must be rank 3, but got rank "+c.rank+"."),D(3===u.rank,"Error in conv1d: filter must be rank 3, but got rank "+u.rank+"."),null!=a&&D(N(r),"Error in conv1d: pad must be an integer when using, dimRoundingMode "+a+" but got pad "+r+"."),D(c.shape[2]===u.shape[1],"Error in conv1d: depth of input ("+c.shape[2]+") must match input depth for filter "+u.shape[1]+"."),D(ia(n,i),"Error in conv1D: Either stride or dilation must be 1. Got stride "+n+" and dilation '"+i+"'"),D("NWC"===o,"Error in conv1d: got dataFormat of "+o+" but only NWC is currently supported.");var h=u.as4D(1,u.shape[0],u.shape[1],u.shape[2]),p=c.as4D(c.shape[0],1,c.shape[1],c.shape[2]),f=pa(p,h,[1,n],r,"NHWC",[1,i],a);return l?f.as2D(f.shape[2],f.shape[3]):f.as3D(f.shape[0],f.shape[2],f.shape[3])}}),pa=Yt({conv2d_:function(t,e,n,r,o,i,a){void 0===o&&(o="NHWC"),void 0===i&&(i=[1,1]);var s=Kt(t,"x","conv2d"),u=Kt(e,"filter","conv2d"),c=s,l=!1;3===s.rank&&(l=!0,c=s.as4D(1,s.shape[0],s.shape[1],s.shape[2])),D(4===c.rank,"Error in conv2d: input must be rank 4, but got rank "+c.rank+"."),D(4===u.rank,"Error in conv2d: filter must be rank 4, but got rank "+u.rank+"."),null!=a&&D(N(r),"Error in conv2d: pad must be an integer when using, dimRoundingMode "+a+" but got pad "+r+"."),D(c.shape[3]===u.shape[2],"Error in conv2d: depth of input ("+c.shape[3]+") must match input depth for filter "+u.shape[2]+"."),D(ia(n,i),"Error in conv2D: Either strides or dilations must be 1. Got strides "+n+" and dilations '"+i+"'"),D("NHWC"===o,"Error in conv2d: got dataFormat of "+o+" but only NHWC is currently supported.");var h,p=ta(c.shape,u.shape,n,i,r,a);if(1!==p.filterHeight||1!==p.filterWidth||1!==p.dilationHeight||1!==p.dilationWidth||1!==p.strideHeight||1!==p.strideWidth||"SAME"!==p.padInfo.type&&"VALID"!==p.padInfo.type)h=mt.engine.runKernel(function(t){return t.conv2d(c,u,p)},{x:c,$filter:u},function(t){return D(oa(i),"Error in gradient of conv2D: dilation rates greater than 1 are notyet supported in gradients. Got dilations '"+i+"'"),{x:function(){return ca(c.shape,t,u,n,r)},$filter:function(){return la(c,t,u.shape,n,r)}}});else{var f=c.reshape([-1,p.inChannels]),d=u.reshape([p.inChannels,p.outChannels]);h=aa(f,d).reshape(p.outShape)}return l?h.as3D(h.shape[1],h.shape[2],h.shape[3]):h}}),fa=Yt({conv2dDerFilter_:la}),da=Yt({depthwiseConv2d_:function(t,e,n,r,o,i,a){void 0===o&&(o="NHWC"),void 0===i&&(i=[1,1]);var s=Kt(t,"x","depthwiseConv2d"),u=Kt(e,"filter","depthwiseConv2d"),c=s,l=!1;3===s.rank&&(l=!0,c=s.as4D(1,s.shape[0],s.shape[1],s.shape[2])),D(4===c.rank,"Error in depthwiseConv2d: input must be rank 4, but got rank "+c.rank+"."),D(4===u.rank,"Error in depthwiseConv2d: filter must be rank 4, but got rank "+u.rank+"."),D(c.shape[3]===u.shape[2],"Error in depthwiseConv2d: number of input channels ("+c.shape[3]+") must match the inChannels dimension in filter "+u.shape[2]+"."),null==i&&(i=[1,1]),D(ia(n,i),"Error in depthwiseConv2d: Either strides or dilations must be 1. 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Looks like you are running TensorFlow.js in Node.js. To speed things up dramatically, install our node backend, which binds to TensorFlow C++, by running npm i @tensorflow/tfjs-node, or npm i @tensorflow/tfjs-node-gpu if you have CUDA. Then call require('@tensorflow/tfjs-node'); (-gpu suffix for CUDA) at the start of your program. 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Y.make(t.shape,{values:e})},t.prototype.atan=function(t){this.assertNotComplex(t,"atan");for(var e=new Float32Array(t.size),n=t.dataSync(),r=0;r<n.length;++r)e[r]=Math.atan(n[r]);return Y.make(t.shape,{values:e})},t.prototype.atan2=function(t,e){return this.assertNotComplex([t,e],"atan2"),this.broadcastedBinaryOp(t,e,t.dtype,function(t,e){return Math.atan2(t,e)})},t.prototype.sinh=function(t){this.assertNotComplex(t,"sinh");for(var e=new Float32Array(t.size),n=t.dataSync(),r=0;r<n.length;++r)e[r]=Math.sinh(n[r]);return Y.make(t.shape,{values:e})},t.prototype.cosh=function(t){this.assertNotComplex(t,"cosh");for(var e=new Float32Array(t.size),n=t.dataSync(),r=0;r<n.length;++r)e[r]=Math.cosh(n[r]);return Y.make(t.shape,{values:e})},t.prototype.tanh=function(t){this.assertNotComplex(t,"tanh");for(var e=new Float32Array(t.size),n=t.dataSync(),r=0;r<n.length;++r)e[r]=h(n[r]);return Y.make(t.shape,{values:e})},t.prototype.asinh=function(t){this.assertNotComplex(t,"asinh");for(var e=new 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Y.make(t.shape,{values:n})},t.prototype.conv2d=function(t,e,n){this.assertNotComplex([t,e],"conv2d");for(var r=n.filterHeight,o=n.filterWidth,i=n.dilationHeight,a=n.dilationWidth,s=n.padInfo.left,u=n.padInfo.top,c=Wo(n.outShape,t.dtype),l=t.dataSync(),h=e.dataSync(),p=c.values,f=0;f<n.batchSize;++f)for(var d=f*t.strides[0],m=f*c.strides[0],v=0;v<n.outHeight;++v)for(var g=m+v*c.strides[1],y=v*n.strideHeight-s,x=0;x<r;x++){var b=y+x*i;if(!(b<0||b>=n.inHeight))for(var w=x*e.strides[0],E=d+b*t.strides[1],S=0;S<n.outWidth;++S)for(var _=g+S*n.outChannels,C=S*n.strideWidth-u,R=0;R<o;R++){var T=C+R*a;if(!(T<0||T>=n.inWidth))for(var k=w+R*e.strides[1],I=E+T*n.inChannels,D=k,N=0;N<n.inChannels;++N){for(var A=l[I+N],M=0;M<n.outChannels;++M)p[_+M]+=A*h[D+M];D+=n.outChannels}}}return c.toTensor()},t.prototype.conv2dDerInput=function(t,e,n){this.assertNotComplex([t,e],"conv2dDerInput");for(var r=Wo(n.inShape,"float32"),o=r.values,i=r.strides,a=i[0],s=i[1],u=i[2],c=t.dataSync(),l=t.strides,h=l[0],p=l[1],f=l[2],d=e.dataSync(),m=e.strides,v=m[0],g=m[1],y=m[2],x=n.batchSize,b=n.filterHeight,w=n.filterWidth,E=n.inChannels,S=n.inHeight,_=n.inWidth,C=n.outChannels,R=n.outHeight,T=n.outWidth,k=n.strideHeight,I=n.strideWidth,D=b-1-n.padInfo.top,N=w-1-n.padInfo.left,A=0;A<x;++A)for(var M=0;M<E;++M)for(var O=0;O<S;++O)for(var P=O-D,F=Math.max(0,Math.ceil(P/k)),L=Math.min(R,(b+P)/k),B=0;B<_;++B){for(var z=B-N,W=Math.max(0,Math.ceil(z/I)),U=Math.min(T,(w+z)/I),V=0,G=F;G<L;++G)for(var q=G*k-P,j=W;j<U;++j)for(var H=h*A+p*G+f*j,$=v*(b-1-q)+g*(w-1-(j*I-z))+y*M,K=0;K<C;++K)V+=c[H+K]*d[$+K];o[a*A+s*O+u*B+M]=V}return r.toTensor()},t.prototype.conv2dDerFilter=function(t,e,n){this.assertNotComplex([t,e],"conv2dDerFilter");for(var r=n.strideHeight,o=n.strideWidth,i=n.filterHeight,a=n.filterWidth,s=Wo(n.filterShape,"float32"),u=n.padInfo.left,c=n.padInfo.top,l=0;l<i;++l)for(var h=Math.max(0,Math.ceil((c-l)/r)),p=Math.min(n.outHeight,(n.inHeight+c-l)/r),f=0;f<a;++f)for(var d=Math.max(0,Math.ceil((u-f)/o)),m=Math.min(n.outWidth,(n.inWidth+u-f)/o),v=0;v<n.inChannels;++v)for(var g=0;g<n.outChannels;++g){for(var y=0,x=0;x<n.batchSize;++x)for(var b=h;b<p;++b)for(var w=l+b*r-c,E=d;E<m;++E){var S=f+E*o-u;y+=t.get(x,w,S,v)*e.get(x,b,E,g)}s.set(y,l,f,v,g)}return s.toTensor()},t.prototype.depthwiseConv2D=function(t,e,n){this.assertNotComplex([t,e],"depthwiseConv2D");for(var r=n.filterHeight,o=n.filterWidth,i=n.dilationHeight,a=n.dilationWidth,s=n.padInfo.left,u=n.padInfo.top,c=n.outChannels/n.inChannels,l=Wo(n.outShape,t.dtype),h=t.dataSync(),p=e.dataSync(),f=l.values,d=0;d<n.batchSize;++d)for(var m=d*t.strides[0],v=d*l.strides[0],g=0;g<n.outHeight;++g)for(var y=v+g*l.strides[1],x=g*n.strideHeight-s,b=0;b<r;++b){var w=x+b*i;if(!(w<0||w>=n.inHeight))for(var E=b*e.strides[0],S=m+w*t.strides[1],_=0;_<n.outWidth;++_)for(var C=y+_*l.strides[2],R=_*n.strideWidth-u,T=0;T<o;++T){var k=R+T*a;if(!(k<0||k>=n.inWidth))for(var I=E+T*e.strides[1],D=S+k*n.inChannels,N=C,A=I,M=0;M<n.inChannels;++M){for(var O=h[D+M],P=0;P<c;++P)f[N+P]+=O*p[A+P];N+=c,A+=c}}}return l.toTensor()},t.prototype.depthwiseConv2DDerInput=function(t,e,n){this.assertNotComplex([t,e],"depthwiseConv2DDerInput");for(var r=Wo(n.inShape,"float32"),o=r.values,i=r.strides,a=i[0],s=i[1],u=i[2],c=t.dataSync(),l=t.strides,h=l[0],p=l[1],f=l[2],d=e.dataSync(),m=e.strides,v=m[0],g=m[1],y=m[2],x=n.batchSize,b=n.filterHeight,w=n.filterWidth,E=n.inChannels,S=n.inHeight,_=n.inWidth,C=n.outChannels,R=n.outHeight,T=n.outWidth,k=n.strideHeight,I=n.strideWidth,D=b-1-n.padInfo.top,N=w-1-n.padInfo.left,A=C/E,M=0;M<x;++M)for(var O=0;O<E;++O)for(var P=0;P<S;++P)for(var F=P-D,L=Math.max(0,Math.ceil(F/k)),B=Math.min(R,(b+F)/k),z=0;z<_;++z){for(var W=z-N,U=Math.max(0,Math.ceil(W/I)),V=Math.min(T,(w+W)/I),G=0,q=L;q<B;++q)for(var j=q*k-F,H=U;H<V;++H)for(var $=h*M+p*q+f*H,K=v*(b-1-j)+g*(w-1-(H*I-W))+y*O,X=0;X<A;++X)G+=c[$+(O*A+X)]*d[K+X];o[a*M+s*P+u*z+O]=G}return r.toTensor()},t.prototype.depthwiseConv2DDerFilter=function(t,e,n){this.assertNotComplex([t,e],"depthwiseConv2DDerFilter");for(var r=n.strideHeight,o=n.strideWidth,i=n.filterHeight,a=n.filterWidth,s=Wo(n.filterShape,"float32"),u=n.padInfo.left,c=n.padInfo.top,l=n.outChannels/n.inChannels,h=0;h<i;++h)for(var p=Math.max(0,Math.ceil((c-h)/r)),f=Math.min(n.outHeight,(n.inHeight+c-h)/r),d=0;d<a;++d)for(var m=Math.max(0,Math.ceil((u-d)/o)),v=Math.min(n.outWidth,(n.inWidth+u-d)/o),g=0;g<n.outChannels;++g){for(var y=Math.trunc(g/l),x=g%l,b=0,w=0;w<n.batchSize;++w)for(var E=p;E<f;++E)for(var S=h+E*r-c,_=m;_<v;++_){var C=d+_*o-u;b+=t.get(w,S,C,y)*e.get(w,E,_,g)}s.set(b,h,d,y,x)}return s.toTensor()},t.prototype.tile=function(t,e){this.assertNotComplex(t,"tile");for(var n=new Array(t.rank),r=0;r<n.length;r++)n[r]=t.shape[r]*e[r];var o=Wo(n,t.dtype),i=t.buffer();for(r=0;r<o.values.length;++r){for(var a=o.indexToLoc(r),s=new Array(t.rank),u=0;u<s.length;u++)s[u]=a[u]%t.shape[u];var c=i.locToIndex(s);o.values[r]=i.values[c]}return o.toTensor()},t.prototype.pad=function(n,t,e){this.assertNotComplex(n,"pad");var r=t.map(function(t,e){return t[0]+n.shape[e]+t[1]}),o=t.map(function(t){return t[0]}),i=n.buffer(),a=Wo(r,n.dtype);0!==e&&a.values.fill(e);for(var s=0;s<n.size;s++){var u=i.indexToLoc(s),c=u.map(function(t,e){return t+o[e]});a.set.apply(a,[n.get.apply(n,u)].concat(c))}return a.toTensor()},t.prototype.transpose=function(t,e){this.assertNotComplex(t,"transpose");for(var n=new Array(t.rank),r=0;r<n.length;r++)n[r]=t.shape[e[r]];var o=t.dataSync(),i=Wo(n,t.dtype),a=t.buffer();for(r=0;r<t.size;++r){for(var s=a.indexToLoc(r),u=new Array(s.length),c=0;c<u.length;c++)u[c]=s[e[c]];var l=i.locToIndex(u);i.values[l]=o[r]}return i.toTensor()},t.prototype.gather=function(t,e,n){this.assertNotComplex([t,e],"gather");var r=t.shape.slice(),o=e.dataSync();r[n]=o.length;for(var i=Wo(r,t.dtype),a=t.buffer(),s=0;s<i.size;++s){var u=i.indexToLoc(s),c=u.slice();c[n]=o[u[n]];var l=a.locToIndex(c);i.values[s]=a.values[l]}return i.toTensor()},t.prototype.batchToSpaceND=function(t,e,n){this.assertNotComplex([t],"batchToSpaceND");var r=e.reduce(function(t,e){return t*e}),o=Rt(t.shape,e,r),i=Tt(o.length,e.length),a=kt(t.shape,e,r),s=It(n,e.length),u=Dt(a,n,e.length);return t.reshape(o).transpose(i).reshape(a).slice(s,u)},t.prototype.spaceToBatchND=function(t,e,n){this.assertNotComplex([t],"spaceToBatchND");var r=e.reduce(function(t,e){return t*e}),o=[[0,0]];o.push.apply(o,n);for(var i=1+e.length;i<t.shape.length;++i)o.push([0,0]);var a=t.pad(o),s=Rt(a.shape,e,r,!1),u=Tt(s.length,e.length,!1),c=kt(a.shape,e,r,!1);return a.reshape(s).transpose(u).reshape(c)},t.prototype.pool=function(t,e,n){this.assertNotComplex(t,"pool");for(var r=e.strideHeight,o=e.strideWidth,i=e.dilationHeight,a=e.dilationWidth,s=e.effectiveFilterHeight,u=e.effectiveFilterWidth,c=Wo(e.outShape,"float32"),l=e.padInfo.top,h=e.padInfo.left,p="max"===n?Number.NEGATIVE_INFINITY:Number.POSITIVE_INFINITY,f=0;f<e.batchSize;++f)for(var d=0;d<e.inChannels;++d)for(var m=0;m<e.outHeight;++m)for(var v=m*r-l,g=Math.max(0,v),y=Math.min(e.inHeight,s+v),x=0;x<e.outWidth;++x){for(var b=x*o-h,w=Math.max(0,b),E=Math.min(e.inWidth,u+b),S=p,_=0,C=0,R=g;R<y;R+=i){for(var T=w;T<E;T+=a){var k=t.get(f,R,T,d);"max"===n&&S<k?S=k:"avg"===n&&(_+=k,C++)}if(isNaN(S))break}c.set("avg"===n?_/C:S,f,m,x,d)}return c.toTensor()},t.prototype.maxPool=function(t,e){return this.pool(t,e,"max")},t.prototype.maxPoolPositions=function(t,e){for(var n=Wo(e.outShape,"int32"),r=e.strideHeight,o=e.strideWidth,i=e.dilationHeight,a=e.dilationWidth,s=e.effectiveFilterHeight,u=e.effectiveFilterWidth,c=e.padInfo.top,l=e.padInfo.left,h=0;h<e.batchSize;++h)for(var p=0;p<e.inChannels;++p)for(var f=0;f<e.outHeight;++f){for(var d=f*r-c,m=d;m<0;)m+=i;for(var v=Math.min(e.inHeight,s+d),g=0;g<e.outWidth;++g){for(var y=g*o-l,x=y;x<0;)x+=a;for(var b=Math.min(e.inWidth,u+y),w=Number.NEGATIVE_INFINITY,E=-1,S=m;S<v;S+=i)for(var _=S-d,C=x;C<b;C+=a){var R=C-y,T=t.get(h,S,C,p);w<T&&(w=T,E=_*u+R)}n.set(E,h,f,g,p)}}return n.toTensor()},t.prototype.maxPoolBackprop=function(t,e,n,r){this.assertNotComplex([e,n],"maxPoolBackprop");for(var o=this.maxPoolPositions(e,r),i=r.strideHeight,a=r.strideWidth,s=r.dilationHeight,u=r.dilationWidth,c=r.effectiveFilterHeight,l=r.effectiveFilterWidth,h=l-1-r.padInfo.left,p=c-1-r.padInfo.top,f=Wo(e.shape,"float32"),d=0;d<r.batchSize;++d)for(var m=0;m<r.inChannels;++m)for(var v=0;v<r.inHeight;++v)for(var g=0;g<r.inWidth;++g){for(var y=v-p,x=g-h,b=0,w=0;w<c;w+=s){var E=(y+w)/i;if(!(E<0||E>=r.outHeight||Math.floor(E)!==E))for(var S=0;S<l;S+=u){var _=(x+S)/a;if(!(_<0||_>=r.outWidth||Math.floor(_)!==_)){var C=c*l-1-o.get(d,E,_,m)===w*l+S?1:0;0!==C&&(b+=t.get(d,E,_,m)*C)}}}f.set(b,d,v,g,m)}return f.toTensor()},t.prototype.avgPoolBackprop=function(t,e,n){this.assertNotComplex([t,e],"avgPoolBackprop");for(var r=n.strideHeight,o=n.strideWidth,i=n.filterHeight,a=n.filterWidth,s=n.dilationHeight,u=n.dilationWidth,c=n.effectiveFilterHeight,l=n.effectiveFilterWidth,h=l-1-n.padInfo.left,p=c-1-n.padInfo.top,f=Wo(e.shape,"float32"),d=1/(i*a),m=0;m<n.batchSize;++m)for(var v=0;v<n.inChannels;++v)for(var g=0;g<n.inHeight;++g)for(var y=0;y<n.inWidth;++y){for(var x=g-p,b=y-h,w=0,E=0;E<c;E+=s){var S=(x+E)/r;if(!(S<0||S>=n.outHeight||Math.floor(S)!==S))for(var _=0;_<l;_+=u){var C=(b+_)/o;C<0||C>=n.outWidth||Math.floor(C)!==C||(w+=t.get(m,S,C,v))}}f.set(w*d,m,g,y,v)}return f.toTensor()},t.prototype.cast=function(t,e){return Ae(t,e,this)},t.prototype.reshape=function(t,e){return Me(t,e)},t.prototype.avgPool=function(t,e){return this.assertNotComplex(t,"avgPool"),this.pool(t,e,"avg").toFloat()},t.prototype.resizeBilinear=function(t,e,n,r){this.assertNotComplex(t,"resizeBilinear");for(var o=t.shape,i=o[0],a=o[1],s=o[2],u=o[3],c=t.dataSync(),l=new Float32Array(B([i,e,n,u])),h=[r&&1<e?a-1:a,r&&1<n?s-1:s],p=[r&&1<e?e-1:e,r&&1<n?n-1:n],f=0,d=h[0]/p[0],m=h[1]/p[1],v=0;v<i;v++)for(var g=0;g<e;g++)for(var y=d*g,x=Math.floor(y),b=y-x,w=Math.min(a-1,Math.ceil(y)),E=v*t.strides[0]+x*t.strides[1],S=v*t.strides[0]+w*t.strides[1],_=0;_<n;_++)for(var C=m*_,R=Math.floor(C),T=C-R,k=Math.min(s-1,Math.ceil(C)),I=E+R*t.strides[2],D=S+R*t.strides[2],N=E+ +k*t.strides[2],A=S+k*t.strides[2],M=0;M<u;M++){var O=c[I+M],P=c[D+M],F=O+(c[N+M]-O)*T,L=F+(P+(c[A+M]-P)*T-F)*b;l[f++]=L}return ee(l,[i,e,n,u])},t.prototype.resizeBilinearBackprop=function(t,e,n){this.assertNotComplex([t,e],"resizeBilinearBackprop");for(var r=e.shape,o=r[0],i=r[1],a=r[2],s=r[3],u=t.shape,c=u[1],l=u[2],h=new Float32Array(o*i*a*s),p=[n&&1<c?i-1:i,n&&1<l?a-1:a],f=[n&&1<c?c-1:c,n&&1<l?l-1:l],d=p[0]/f[0],m=p[1]/f[1],v=t.dataSync(),g=0,y=0;y<o;y++)for(var x=y*e.strides[0],b=0;b<c;b++)for(var w=b*d,E=Math.floor(w),S=Math.min(Math.ceil(w),i-1),_=x+E*e.strides[1],C=x+S*e.strides[1],R=w-E,T=1-R,k=0;k<l;k++)for(var I=k*m,D=Math.floor(I),N=Math.min(Math.ceil(I),a-1),A=I-D,M=1-A,O=_+D*e.strides[2],P=_+N*e.strides[2],F=C+D*e.strides[2],L=C+N*e.strides[2],B=T*M,z=T*A,W=R*M,U=R*A,V=0;V<s;V++){var G=v[g++];h[O+V]+=G*B,h[P+V]+=G*z,h[F+V]+=G*W,h[L+V]+=G*U}return ae(h,[o,a,i,s],e.dtype)},t.prototype.resizeNearestNeighbor=function(t,e,n,r){this.assertNotComplex(t,"resizeNearestNeighbor");for(var o=t.shape,i=o[0],a=o[1],s=o[2],u=o[3],c=t.dataSync(),l=new Float32Array(i*e*n*u),h=[r&&1<e?a-1:a,r&&1<n?s-1:s],p=[r&&1<e?e-1:e,r&&1<n?n-1:n],f=h[0]/p[0],d=h[1]/p[1],m=0,v=0;v<i;v++)for(var g=v*t.strides[0],y=0;y<e;y++)for(var x=f*y,b=g+Math.min(a-1,r?Math.round(x):Math.floor(x))*t.strides[1],w=0;w<n;w++)for(var E=d*w,S=b+Math.min(s-1,r?Math.round(E):Math.floor(E))*t.strides[2],_=0;_<u;_++){var C=c[S+_];l[m++]=C}return ee(l,[i,e,n,u],t.dtype)},t.prototype.resizeNearestNeighborBackprop=function(t,e,n){this.assertNotComplex([t,e],"resizeNearestNeighborBackprop");for(var r=e.shape,o=r[0],i=r[1],a=r[2],s=r[3],u=t.shape,c=u[1],l=u[2],h=new Float32Array(o*i*a*s),p=t.dataSync(),f=[n&&1<c?i-1:i,n&&1<l?a-1:a],d=[n&&1<c?c-1:c,n&&1<l?l-1:l],m=f[0]/d[0],v=f[1]/d[1],g=1/m,y=1/v,x=2*Math.ceil(g)+2,b=2*Math.ceil(y)+2,w=0;w<o;w++)for(var E=w*e.strides[0],S=0;S<i;S++)for(var _=E+S*e.strides[1],C=Math.floor(S*g),R=Math.floor(C-x/2),T=0;T<a;T++)for(var k=_+T*e.strides[2],I=Math.floor(T*y),D=Math.floor(I-b/2),N=0;N<s;N++){for(var A=0,M=0;M<x;M++){var O=M+R;if(!(O<0||c<=O)){var P=E+O*t.strides[1],F=O*m;if(S===Math.min(i-1,n?Math.round(F):Math.floor(F)))for(var L=0;L<b;L++){var B=L+D;if(!(B<0||l<=B)){var z=P+B*t.strides[2],W=B*v;T===Math.min(a-1,n?Math.round(W):Math.floor(W))&&(A+=p[z+N])}}}}h[k+N]=A}return ae(h,e.shape,e.dtype)},t.prototype.batchNormalization=function(t,e,n,r,o,i){this.assertNotComplex([t,e,n,o,i],"batchNormalization");for(var a=t.dataSync(),s=e.dataSync(),u=n.dataSync(),c=o?o.dataSync():new Float32Array([1]),l=i?i.dataSync():new Float32Array([0]),h=new Float32Array(a.length),p=l.length,f=c.length,d=u.length,m=s.length,v=0,g=0,y=0,x=0,b=0;b<a.length;++b)h[b]=l[v++]+(a[b]-s[g++])*c[y++]/Math.sqrt(u[x++]+r),p<=v&&(v=0),m<=g&&(g=0),f<=y&&(y=0),d<=x&&(x=0);return ae(h,t.shape)},t.prototype.localResponseNormalization4D=function(t,a,e,n,r){this.assertNotComplex(t,"localResponseNormalization4D");var s=t.shape[3],u=s-1,c=t.dataSync(),o=B(t.shape),i=new Float32Array(o);function l(t){for(var e=t%s,n=t-e+Math.max(0,e-a),r=t-e+Math.min(e+a,u),o=0;n<=r;n++){var i=c[n];o+=i*i}return o}for(var h=0;h<o;h++){var p=l(h),f=c[h]*Math.pow(e+n*p,-r);i[h]=f}return ae(i,t.shape)},t.prototype.LRNGrad=function(t,e,n,r,o,i,a){this.assertNotComplex(t,"LRNGrad");for(var s=t.shape[3],u=t.dataSync(),c=e.dataSync(),l=n.dataSync(),h=new Float32Array(B(t.shape)),p=B(t.shape),f=0;f<p;f++){for(var d=f%s,m=f-d+Math.max(0,d-r),v=f-d+Math.min(s,d+r+1),g=0,y=m;y<v;y++)g+=Math.pow(c[y],2);for(g=i*g+o,y=m;y<v;y++){var x=-2*i*a*c[y]*l[f]/g;f===y&&(x+=Math.pow(g,-a)),x*=u[f],h[y]+=x}}return ae(h,t.shape)},t.prototype.multinomial=function(t,e,n,r){this.assertNotComplex(t,"multinomial");for(var o=e?t:Qt(t),i=o.shape[0],a=o.shape[1],s=le([i,n],"int32"),u=s.dataSync(),c=o.dataSync(),l=0;l<i;++l){var h=l*a,p=new Float32Array(a-1);p[0]=c[h];for(var f=1;f<p.length;++f)p[f]=p[f-1]+c[h+f];for(var d=Lo(r.toString()),m=l*n,v=0;v<n;++v){var g=d();u[m+v]=p.length;for(var y=0;y<p.length;y++)if(g<p[y]){u[m+v]=y;break}}}return s},t.prototype.oneHot=function(t,e,n,r){this.assertNotComplex(t,"oneHot");var o=new Float32Array(t.size*e);o.fill(r);for(var i=0;i<t.size;++i)0<=t.get(i)&&t.get(i)<e&&(o[i*e+t.get(i)]=n);return oe(o,[t.size,e],"int32")},t.prototype.nonMaxSuppression=function(t,e,n,r,o){return this.assertNotComplex(t,"nonMaxSuppression"),Pe(t.dataSync(),e.dataSync(),n,r,o)},t.prototype.fft=function(t){if(1!==t.shape[0])throw new Error("tf.fft() on CPU only supports vectors.");var e=t.as1D(),n=e.size;if(this.isExponentOf2(n))return this.fftRadix2(e,n).as2D(t.shape[0],t.shape[1]);var r=t.dataSync(),o=function(t){for(var e=new Float32Array(t.length/2),n=new Float32Array(t.length/2),r=0;r<t.length;r+=2)e[r/2]=t[r],n[r/2]=t[r+1];return{real:e,imag:n}}(this.fourierTransformByMatmul(r,n));return Jt(o.real,o.imag).as2D(t.shape[0],t.shape[1])},t.prototype.isExponentOf2=function(t){return 0==(t&t-1)},t.prototype.fftRadix2=function(t,e){if(1===e)return t;var n=t.dataSync(),r=e/2,o=function(t){for(var e=Math.ceil(t.length/4),n=new Float32Array(e),r=new Float32Array(e),o=0;o<t.length;o+=4)n[Math.floor(o/4)]=t[o],r[Math.floor(o/4)]=t[o+1];return{real:n,imag:r}}(n),i=Jt(o.real,o.imag).as1D(),a=function(t){for(var e=Math.floor(t.length/4),n=new Float32Array(e),r=new Float32Array(e),o=2;o<t.length;o+=4)n[Math.floor(o/4)]=t[o],r[Math.floor(o/4)]=t[o+1];return{real:n,imag:r}}(n),s=Jt(a.real,a.imag).as1D();i=this.fftRadix2(i,r),s=this.fftRadix2(s,r);var u=function(t){for(var e=new Float32Array(t/2),n=new Float32Array(t/2),r=0;r<Math.ceil(t/2);r++){var o=-2*Math.PI*(r/t);e[r]=Math.cos(o),n[r]=Math.sin(o)}return{real:e,imag:n}}(e),c=Jt(u.real,u.imag).mul(s),l=i.add(c),h=i.sub(c),p=Zt(l).concat(Zt(h)),f=te(l).concat(te(h));return Jt(p,f).as1D()},t.prototype.fourierTransformByMatmul=function(t,e){for(var n=new Float32Array(2*e),r=0;r<e;r++){for(var o=0,i=0,a=0;a<e;a++){var s=(m=r*a,v=e,void 0,g=-2*Math.PI*(m/v),{real:Math.cos(g),imag:Math.sin(g)}),u={real:(f=t)[2*(d=a)],imag:f[2*d+1]};o+=u.real*s.real-u.imag*s.imag,i+=u.real*s.imag+u.imag*s.real}l=o,h=i,(c=n)[2*(p=r)]=l,c[2*p+1]=h}var c,l,h,p,f,d,m,v,g;return n},t.prototype.depthToSpace=function(t,e,n){D("NHWC"===n,"Only NHWC dataFormat supported on CPU for depthToSpace. Got "+n),D(1<e,"blockSize should be > 1 for depthToSpace, but was: "+e);for(var r=t.shape[0],o=t.shape[1],i=t.shape[2],a=t.shape[3],s=o*e,u=i*e,c=a/(e*e),l=t.dataSync(),h=new Float32Array(r*s*u*c),p=0,f=0;f<r;++f)for(var d=0;d<s;++d)for(var m=Math.floor(d/e),v=d%e,g=0;g<u;++g)for(var y=Math.floor(g/e),x=(v*e+g%e)*c,b=0;b<c;++b){var w=b+x+a*(y+i*(m+o*f));h[p++]=l[w]}return ae(h,[r,s,u,c])},t.prototype.broadcastedBinaryOp=function(a,s,t,u){var e=Ge(a.shape,s.shape),c=Wo(e,t),l=a.dataSync(),h=s.dataSync(),p=Ue(a.shape,e),f=Ue(s.shape,e),d=c.values;if(p.length+f.length===0)for(var n=0;n<d.length;++n)d[n]=u(l[n%l.length],h[n%h.length]);else{var m=a.buffer(),v=s.buffer(),r=function(t){var e=c.indexToLoc(t),n=e.slice(-a.rank);p.forEach(function(t){return n[t]=0});var r=m.locToIndex(n),o=e.slice(-s.rank);f.forEach(function(t){return o[t]=0});var i=v.locToIndex(o);d[t]=u(l[r],h[i])};for(n=0;n<d.length;++n)r(n)}return c.toTensor()},t.prototype.broadcastedBinaryComplexOp=function(s,u,c){var t=Ge(s.shape,u.shape),l=Wo(t,"float32"),e=Wo(t,"float32"),h=s.dataSync(),p=u.dataSync(),f=Ue(s.shape,t),d=Ue(u.shape,t),m=l.values,v=e.values;if(f.length+d.length===0)for(var n=0;n<m.length;n++){var r=n%h.length,o=n%p.length,i=c(h[2*r],h[2*r+1],p[2*o],p[2*o+1]);m[n]=i.real,v[n]=i.imag}else{var g=this.data.get(s.dataId).complexTensors.real.buffer(),y=this.data.get(u.dataId).complexTensors.real.buffer(),a=function(t){var e=l.indexToLoc(t),n=e.slice(-s.rank);f.forEach(function(t){return n[t]=0});var r=g.locToIndex(n),o=e.slice(-u.rank);d.forEach(function(t){return o[t]=0});var i=y.locToIndex(o),a=c(h[2*r],h[2*r+1],p[2*i],p[2*i+1]);m[t]=a.real,v[t]=a.imag};for(n=0;n<m.length;n++)a(n)}return this.complex(l.toTensor(),e.toTensor())},t.prototype.split=function(t,e,n){return Le(t,e,n)},t.prototype.dispose=function(){},t.prototype.floatPrecision=function(){return 32},t.prototype.cropAndResize=function(t,e,n,r,o,i){for(var a=t.shape,s=a[0],u=a[1],c=a[2],l=a[3],h=e.shape[0],p=r[0],f=r[1],d=Wo([h,p,f,l]),m=e.dataSync(),v=n.dataSync(),g=t.dataSync(),y=t.strides,x=d.strides,b=0;b<h;b++){var w=4*b,E=m[w],S=m[w+1],_=m[w+2],C=m[w+3],R=v[b];if(!(s<=R))for(var T=1<p?(_-E)*(u-1)/(p-1):0,k=1<f?(C-S)*(c-1)/(f-1):0,I=0;I<p;I++){var D=1<p?E*(u-1)+I*T:.5*(E+_)*(u-1);if(D<0||u-1<D)for(var N=0;N<f;N++)for(var A=0;A<l;A++){var M=A+N*x[2]+I*x[1]+b*x[0];d.values[M]=i}else if("bilinear"===o){var O=Math.floor(D),P=Math.ceil(D),F=D-O;for(N=0;N<f;N++)if((j=1<f?S*(c-1)+N*k:.5*(S+C)*(c-1))<0||c-1<j)for(A=0;A<l;A++)M=A+N*x[2]+I*x[1]+b*x[0],d.values[M]=i;else{var L=Math.floor(j),B=Math.ceil(j),z=j-L;for(A=0;A<l;A++){var W=g[M=A+L*y[2]+O*y[1]+R*y[0]],U=g[M=A+B*y[2]+O*y[1]+R*y[0]],V=g[M=A+L*y[2]+P*y[1]+R*y[0]],G=W+(U-W)*z,q=V+(g[M=A+B*y[2]+P*y[1]+R*y[0]]-V)*z;M=A+N*x[2]+I*x[1]+b*x[0],d.values[M]=G+(q-G)*F}}}else for(N=0;N<f;++N){var j;if((j=1<f?S*(c-1)+N*k:.5*(S+C)*(c-1))<0||c-1<j)for(A=0;A<l;A++)M=A+N*x[2]+I*x[1]+b*x[0],d.values[M]=i;else{var H=Math.round(j),$=Math.round(D);for(A=0;A<l;A++){var K=A+H*y[2]+$*y[1]+R*y[0],X=A+N*x[2]+I*x[1]+b*x[0];d.values[X]=g[K]}}}}}return d.toTensor()},t.prototype.sparseToDense=function(t,e,n,r){var o=Gt(0,t,n),i=o.sliceRank,a=o.numUpdates,s=o.sliceSize,u=o.strides,c=o.outputSize;return this.scatter(t,e,n,c,s,a,i,u,r,!1)},t.prototype.gatherND=function(t,e){var n=e.shape,r=n[n.length-1],o=Wt(t,e),i=o[0],a=o[1],s=o[2],u=o[3];if(0===a)return ee([],i,t.dtype);for(var c=new H([a,s],t.dtype),l=e.dataSync(),h=t.dataSync(),p=0;p<a;p++){for(var f=[],d=0,m=0;m<r;m++){var v=l[p*r+m];d+=v*u[m],f.push(v)}if(d<0||d>=t.size/s)throw new Error("Invalid indices: "+f+" does not index into "+t.shape);for(var g=0;g<s;g++)c.values[p*s+g]=h[d*s+g]}return c.toTensor().reshape(i)},t.prototype.scatterND=function(t,e,n){var r=Gt(0,t,n),o=r.sliceRank,i=r.numUpdates,a=r.sliceSize,s=r.strides,u=r.outputSize,c=ne(0);return this.scatter(t,e,n,u,a,i,o,s,c,!0)},t.prototype.scatter=function(t,e,n,r,o,i,a,s,u,c){var l=[r/o,o],h=t.dataSync(),p=e.dataSync();if(0===r)return ee([],n,e.dtype);var f=new H(l,e.dtype);f.values.fill(u.dataSync()[0]);for(var d=0;d<i;d++){for(var m=[],v=0,g=0;g<a;g++){var y=h[d*a+g];m.push(y),v+=y*s[g]}if(v<0||r/o<=v)throw new Error("Invalid indices: "+m+" does not index into "+n);for(var x=0;x<o;x++)c?f.values[v*o+x]+=p[d*o+x]:f.values[v*o+x]=0===e.rank?p[0]:p[d*o+x]}return f.toTensor().reshape(n)},t}();mt.registerBackend("cpu",function(){return new wu},1,X);var Eu="undefined"!=typeof requestAnimationFrame?requestAnimationFrame:setImmediate;var Su={float32:4,int32:4,uint16:2,uint8:1,bool:1};function _u(p,t){for(var f={},d=0,e=function(t){var e=t.name,n=t.dtype,r=t.shape,o=B(r),i=void 0;if("quantization"in t){var a=t.quantization;if("uint8"!==a.dtype&&"uint16"!==a.dtype)throw new Error("Weight "+t.name+" has unknown quantization dtype "+a.dtype+". 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a=t[o],s=n.accumulatedGrads[o],u=n.accumulatedUpdates[o];bt(function(){var t=c.rhoScalar.mul(s).add(c.oneMinusRho.mul(a.square())),e=u.add(c.epsilonScalar).sqrt().div(s.add(c.epsilonScalar).sqrt()).mul(a),n=c.rhoScalar.mul(u).add(c.oneMinusRho.mul(e.square()));c.accumulatedGrads[o].assign(t),c.accumulatedUpdates[o].assign(n);var r=c.c.mul(e).add(i);i.assign(r)})},n=this;for(var r in t)e(r)},t.prototype.dispose=function(){var e=this;this.c.dispose(),this.epsilonScalar.dispose(),this.rhoScalar.dispose(),this.oneMinusRho.dispose(),null!=this.accumulatedUpdates&&(Object.keys(this.accumulatedUpdates).forEach(function(t){return e.accumulatedUpdates[t].dispose()}),Object.keys(this.accumulatedGrads).forEach(function(t){return e.accumulatedGrads[t].dispose()}))},t.prototype.getConfig=function(){return{learningRate:this.learningRate,rho:this.rho,epsilon:this.epsilon}},t.fromConfig=function(t,e){return new t(e.learningRate,e.rho,e.epsilon)},t.className="AdadeltaOptimizer",t}(_c);yc(Cc);var Rc=function(r){function t(t,e){void 0===e&&(e=.1);var n=r.call(this)||this;return n.learningRate=t,n.initialAccumulatorValue=e,n.accumulatedGrads={},n.c=wt(ne(-t)),n.epsilon=wt(ne(mt.get("EPSILON"))),n}return s(t,r),t.prototype.applyGradients=function(t){var a=this,e=function(n){var r=mt.engine.registeredVariables[n];null==s.accumulatedGrads[n]&&bt(function(){a.accumulatedGrads[n]=he(r.shape,a.initialAccumulatorValue).variable(!1)});var o=t[n],i=s.accumulatedGrads[n];bt(function(){var t=i.add(o.square());a.accumulatedGrads[n].assign(t);var e=a.c.mul(o.div(t.add(a.epsilon).sqrt())).add(r);r.assign(e)})},s=this;for(var n in t)e(n)},t.prototype.dispose=function(){var e=this;this.epsilon.dispose(),this.c.dispose(),null!=this.accumulatedGrads&&Object.keys(this.accumulatedGrads).forEach(function(t){return e.accumulatedGrads[t].dispose()})},t.prototype.getConfig=function(){return{learningRate:this.learningRate,initialAccumulatorValue:this.initialAccumulatorValue}},t.fromConfig=function(t,e){return new t(e.learningRate,e.initialAccumulatorValue)},t.className="AdagradOptimizer",t}(_c);yc(Rc);var Tc=function(i){function t(t,e,n,r){void 0===r&&(r=null);var o=i.call(this)||this;return o.learningRate=t,o.beta1=e,o.beta2=n,o.epsilon=r,o.accumulatedFirstMoment={},o.accumulatedSecondMoment={},o.c=wt(ne(-t)),o.beta1Scalar=wt(ne(e)),o.beta2Scalar=wt(ne(n)),bt(function(){o.accBeta1=ne(e).variable(),o.accBeta2=ne(n).variable()}),o.oneMinusBeta1=wt(ne(1-e)),o.oneMinusBeta2=wt(ne(1-n)),o.one=wt(ne(1)),null===r&&(r=mt.get("EPSILON")),o.epsScalar=wt(ne(r)),o}return s(t,i),t.prototype.applyGradients=function(f){var d=this;bt(function(){var t=d.one.sub(d.accBeta1),e=d.one.sub(d.accBeta2);for(var n in f){var r=mt.engine.registeredVariables[n];if(null==d.accumulatedFirstMoment[n]){var 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t,e=a.m.mul(o).add(i);t=a.useNesterov?a.c.mul(i.add(e.mul(a.m))).add(r):a.c.mul(e).add(r),a.accumulations[n].assign(e),r.assign(t)})},s=this;for(var n in t)e(n)},t.prototype.dispose=function(){if(o.prototype.dispose.call(this),this.m.dispose(),null!=this.accumulations)for(var t in this.accumulations)this.accumulations[t].dispose()},t.prototype.setMomentum=function(t){this.momentum=t},t.prototype.getConfig=function(){return{learningRate:this.learningRate,momentum:this.momentum,useNesterov:this.useNesterov}},t.fromConfig=function(t,e){return new t(e.learningRate,e.momentum,e.useNesterov)},t.className="MomentumOptimizer",t}(Ic);yc(Dc);var Nc=function(a){function t(t,e,n,r,o){void 0===e&&(e=.9),void 0===n&&(n=0),void 0===r&&(r=null),void 0===o&&(o=!1);var i=a.call(this)||this;return i.learningRate=t,i.decay=e,i.momentum=n,i.epsilon=r,i.accumulatedMeanSquares={},i.accumulatedMeanGrads={},i.accumulatedMoments={},i.c=wt(ne(t)),i.decayScalar=wt(ne(e)),i.momentumScalar=wt(ne(n)),i.oneMinusDecay=wt(ne(1-e)),i.centered=o,null===r&&(r=mt.get("EPSILON")),i.epsilonScalar=wt(ne(r)),i}return s(t,a),t.prototype.applyGradients=function(t){var h=this,e=function(i){var a=mt.engine.registeredVariables[i];null==n.accumulatedMeanSquares[i]&&bt(function(){h.accumulatedMeanSquares[i]=Te(a).variable(!1)}),null==n.accumulatedMeanGrads[i]&&n.centered&&bt(function(){h.accumulatedMeanGrads[i]=Te(a).variable(!1)}),null==n.accumulatedMoments[i]&&bt(function(){h.accumulatedMoments[i]=Te(a).variable(!1)});var s=n.accumulatedMeanSquares[i],u=n.accumulatedMeanGrads[i],c=n.accumulatedMoments[i],l=t[i];bt(function(){var t=h.decayScalar.mul(s).add(h.oneMinusDecay.mul(l.square()));if(h.centered){var e=h.decayScalar.mul(u).add(h.oneMinusDecay.mul(l)),n=h.momentumScalar.mul(c).add(h.c.mul(l).div(t.sub(e.square().add(h.epsilonScalar)).sqrt()));h.accumulatedMeanSquares[i].assign(t),h.accumulatedMeanGrads[i].assign(e),h.accumulatedMoments[i].assign(n);var r=a.sub(n);a.assign(r)}else{var o=h.decayScalar.mul(s).add(h.oneMinusDecay.mul(l.square()));n=h.momentumScalar.mul(c).add(h.c.mul(l).div(o.add(h.epsilonScalar).sqrt())),h.accumulatedMeanSquares[i].assign(o),h.accumulatedMoments[i].assign(n),r=a.sub(n),a.assign(r)}})},n=this;for(var r in t)e(r)},t.prototype.dispose=function(){var e=this;this.c.dispose(),this.epsilonScalar.dispose(),this.decayScalar.dispose(),this.momentumScalar.dispose(),this.oneMinusDecay.dispose(),null!=this.accumulatedMeanSquares&&Object.keys(this.accumulatedMeanSquares).forEach(function(t){return e.accumulatedMeanSquares[t].dispose()}),null!=this.accumulatedMeanGrads&&this.centered&&Object.keys(this.accumulatedMeanGrads).forEach(function(t){return 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_l(i).putImageData(a.getImageData(e,n,r,o),0,0),i})]}})})}function rh(u,e){return Vc(this,void 0,void 0,function(){return Gc(this,function(t){if(!Kc(u)&&!Xc(u))throw new Error("extractFaceTensors - expected image tensor to be 3D or 4D");if(Xc(u)&&1<u.shape[0])throw new Error("extractFaceTensors - batchSize > 1 not supported");return[2,bt(function(){var t=u.shape.slice(Xc(u)?1:0),i=t[0],a=t[1],s=t[2];return e.map(function(t){return t instanceof $l?t.forSize(a,i).box:t}).map(function(t){return t.clipAtImageBorders(a,i)}).map(function(t){var e=t.x,n=t.y,r=t.width,o=t.height;return Da(u.as3D(i,a,s),[n,e,0],[o,r,s])})})]})})}function oh(e,n,r){return bt(function(){var t=ma(e,n.depthwise_filter,n.pointwise_filter,r,"same");return t=ns(t,n.bias)})}function ih(e,n,r,o){return void 0===r&&(r="same"),void 0===o&&(o=!1),bt(function(){var t=ns(pa(e,n.filters,[1,1],r),n.bias);return o?As(t):t})}function ah(a,s){return function(t,e,n,r){var o=ae(a(t*e*n*n),[n,n,t,e]),i=re(a(e));return s.push({paramPath:r+"/filters"},{paramPath:r+"/bias"}),{filters:o,bias:i}}}var sh=function(t,e,n){this.depthwise_filter=t,this.pointwise_filter=e,this.bias=n};var uh=function(t){return"number"==typeof t};function ch(t){if(![t.noObjectScale,t.objectScale,t.coordScale,t.classScale].every(uh))throw new Error("for training you have to specify noObjectScale, objectScale, coordScale, classScale parameters in your config.json file");return t}var lh,hh,ph=[3,16,32,64,128,256,512,1024,1024];function fh(e){return bt(function(){var t=ms(e,ne(.10000000149011612));return ns(As(ws(e,t)),t)})}function dh(e,n){return bt(function(){var t=Jo(e,[[0,0],[1,1],[1,1],[0,0]]);return t=pa(t,n.conv.filters,[1,1],"valid"),t=ws(t,n.bn.sub),t=ms(t,n.bn.truediv),fh(t=ns(t,n.conv.bias))})}function mh(e,n){return bt(function(){var t=Jo(e,[[0,0],[1,1],[1,1],[0,0]]);return t=ma(t,n.depthwise_filter,n.pointwise_filter,[1,1],"valid"),fh(t=ns(t,n.bias))})}function vh(s,u){var c=ah(s,u);var a,l,t=(a=s,l=u,function(t,e,n){var r=ae(a(9*t),[3,3,t,1]),o=ae(a(t*e),[1,1,t,e]),i=re(a(e));return l.push({paramPath:n+"/depthwise_filter"},{paramPath:n+"/pointwise_filter"},{paramPath:n+"/bias"}),new sh(r,o,i)});return{extractConvParams:c,extractConvWithBatchNormParams:function(t,e,n){var r,o,i,a;return{conv:c(t,e,3,n+"/conv"),bn:(o=n+"/bn",i=re(s(r=e)),a=re(s(r)),u.push({paramPath:o+"/sub"},{paramPath:o+"/truediv"}),{sub:i,truediv:a})}},extractSeparableConvParams:t}}function gh(t,e){var o,n=dl(t,e);function r(t){return{filters:n(t+"/filters",4),bias:n(t+"/bias",1)}}return{extractConvParams:r,extractConvWithBatchNormParams:function(t){var e;return{conv:r(t+"/conv"),bn:{sub:n((e=t+"/bn")+"/sub",1),truediv:n(e+"/truediv",1)}}},extractSeparableConvParams:(o=n,function(t){var e=o(t+"/depthwise_filter",4),n=o(t+"/pointwise_filter",4),r=o(t+"/bias",1);return new sh(e,n,r)})}}(hh=lh||(lh={}))[hh.XS=224]="XS",hh[hh.SM=320]="SM",hh[hh.MD=416]="MD",hh[hh.LG=608]="LG";var yh=function(){function t(t){var e=void 0===t?{}:t,n=e.inputSize,r=e.scoreThreshold;if(this._name="TinyYolov2Options",this._inputSize=n||416,this._scoreThreshold=r||.5,"number"!=typeof this._inputSize||this._inputSize%32!=0)throw new Error(this._name+" - expected inputSize to be a number divisible by 32");if("number"!=typeof this._scoreThreshold||this._scoreThreshold<=0||1<=this._scoreThreshold)throw new Error(this._name+" - expected scoreThreshold to be a number between 0 and 1")}return Object.defineProperty(t.prototype,"inputSize",{get:function(){return this._inputSize},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"scoreThreshold",{get:function(){return this._scoreThreshold},enumerable:!0,configurable:!0}),t}(),xh=function(n){function t(t){var e=n.call(this,"TinyYolov2")||this;return function(t){if(!t)throw new Error("invalid config: "+t);if("boolean"!=typeof t.withSeparableConvs)throw new Error("config.withSeparableConvs has to be a boolean, have: "+t.withSeparableConvs);if(!uh(t.iouThreshold)||t.iouThreshold<0||1<t.iouThreshold)throw new Error("config.iouThreshold has to be a number between [0, 1], have: "+t.iouThreshold);if(!Array.isArray(t.classes)||!t.classes.length||!t.classes.every(function(t){return"string"==typeof t}))throw new Error("config.classes has to be an array class names: string[], have: "+JSON.stringify(t.classes));if(!Array.isArray(t.anchors)||!t.anchors.length||!t.anchors.map(function(t){return t||{}}).every(function(t){return uh(t.x)&&uh(t.y)}))throw new Error("config.anchors has to be an array of { x: number, y: number }, have: "+JSON.stringify(t.anchors));if(t.meanRgb&&(!Array.isArray(t.meanRgb)||3!==t.meanRgb.length||!t.meanRgb.every(uh)))throw new Error("config.meanRgb has to be an array of shape [number, number, number], have: "+JSON.stringify(t.meanRgb))}(t),e._config=t,e}return Wc(t,n),Object.defineProperty(t.prototype,"config",{get:function(){return this._config},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"withClassScores",{get:function(){return this.config.withClassScores||1<this.config.classes.length},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"boxEncodingSize",{get:function(){return 5+(this.withClassScores?this.config.classes.length:0)},enumerable:!0,configurable:!0}),t.prototype.runTinyYolov2=function(t,e){var n=dh(t,e.conv0);return n=dh(n=_a(n,[2,2],[2,2],"same"),e.conv1),n=dh(n=_a(n,[2,2],[2,2],"same"),e.conv2),n=dh(n=_a(n,[2,2],[2,2],"same"),e.conv3),n=dh(n=_a(n,[2,2],[2,2],"same"),e.conv4),n=dh(n=_a(n,[2,2],[2,2],"same"),e.conv5),ih(n=dh(n=dh(n=_a(n,[2,2],[1,1],"same"),e.conv6),e.conv7),e.conv8,"valid",!1)},t.prototype.runMobilenet=function(t,e){var n=this.config.isFirstLayerConv2d?fh(ih(t,e.conv0,"valid",!1)):mh(t,e.conv0);return n=mh(n=_a(n,[2,2],[2,2],"same"),e.conv1),n=mh(n=_a(n,[2,2],[2,2],"same"),e.conv2),n=mh(n=_a(n,[2,2],[2,2],"same"),e.conv3),n=mh(n=_a(n,[2,2],[2,2],"same"),e.conv4),n=mh(n=_a(n,[2,2],[2,2],"same"),e.conv5),n=_a(n,[2,2],[1,1],"same"),n=e.conv6?mh(n,e.conv6):n,ih(n=e.conv7?mh(n,e.conv7):n,e.conv8,"valid",!1)},t.prototype.forwardInput=function(e,n){var r=this,o=this.params;if(!o)throw new Error("TinyYolov2 - load model before inference");return bt(function(){var t=e.toBatchTensor(n,!1).toFloat();return t=(t=r.config.meanRgb?Gl(t,r.config.meanRgb):t).div(ne(256)),r.config.withSeparableConvs?r.runMobilenet(t,o):r.runTinyYolov2(t,o)})},t.prototype.forward=function(n,r){return Vc(this,void 0,void 0,function(){var e;return Gc(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,Wl(n)];case 1:return[4,e.apply(this,[t.sent(),r])];case 2:return[2,t.sent()]}})})},t.prototype.detect=function(m,v){return void 0===v&&(v={}),Vc(this,void 0,void 0,function(){var e,n,r,o,i,a,s,u,c,l,h,p,f,d=this;return Gc(this,function(t){switch(t.label){case 0:return e=new yh(v),n=e.inputSize,r=e.scoreThreshold,[4,Wl(m)];case 1:return o=t.sent(),[4,this.forwardInput(o,n)];case 2:return i=t.sent(),a=bt(function(){return pi(i)[0].expandDims()}),s={width:o.getInputWidth(0),height:o.getInputHeight(0)},u=this.extractBoxes(a,o.getReshapedInputDimensions(0),r),i.dispose(),a.dispose(),c=u.map(function(t){return t.box}),l=u.map(function(t){return t.score}),h=u.map(function(t){return t.classScore}),p=u.map(function(t){return d.config.classes[t.label]}),f=Vl(c.map(function(t){return t.rescale(n)}),l,this.config.iouThreshold,!0),[2,f.map(function(t){return new ll(l[t],h[t],p[t],c[t],s)})]}})})},t.prototype.getDefaultModelName=function(){return""},t.prototype.extractParamsFromWeigthMap=function(t){return function(t,e){var n,r=[],o=gh(t,r),i=o.extractConvParams,a=o.extractConvWithBatchNormParams,s=o.extractSeparableConvParams;if(e.withSeparableConvs){var u=e.filterSizes&&e.filterSizes.length||9;n={conv0:e.isFirstLayerConv2d?i("conv0"):s("conv0"),conv1:s("conv1"),conv2:s("conv2"),conv3:s("conv3"),conv4:s("conv4"),conv5:s("conv5"),conv6:7<u?s("conv6"):void 0,conv7:8<u?s("conv7"):void 0,conv8:i("conv8")}}else n={conv0:a("conv0"),conv1:a("conv1"),conv2:a("conv2"),conv3:a("conv3"),conv4:a("conv4"),conv5:a("conv5"),conv6:a("conv6"),conv7:a("conv7"),conv8:i("conv8")};return fl(t,r),{params:n,paramMappings:r}}(t,this.config)},t.prototype.extractParams=function(t){var e=this.config.filterSizes||ph,n=e?e.length:void 0;if(7!==n&&8!==n&&9!==n)throw new Error("TinyYolov2 - expected 7 | 8 | 9 convolutional filters, but found "+n+" filterSizes in config");return function(t,e,n,r){var o,i=ml(t),a=i.extractWeights,s=i.getRemainingWeights,u=[],c=vh(a,u),l=c.extractConvParams,h=c.extractConvWithBatchNormParams,p=c.extractSeparableConvParams;if(e.withSeparableConvs){var f=r[0],d=r[1],m=r[2],v=r[3],g=r[4],y=r[5],x=r[6],b=r[7],w=r[8];o={conv0:e.isFirstLayerConv2d?l(f,d,3,"conv0"):p(f,d,"conv0"),conv1:p(d,m,"conv1"),conv2:p(m,v,"conv2"),conv3:p(v,g,"conv3"),conv4:p(g,y,"conv4"),conv5:p(y,x,"conv5"),conv6:b?p(x,b,"conv6"):void 0,conv7:w?p(b,w,"conv7"):void 0,conv8:l(w||b||x,5*n,1,"conv8")}}else f=r[0],d=r[1],m=r[2],v=r[3],g=r[4],y=r[5],x=r[6],b=r[7],w=r[8],o={conv0:h(f,d,"conv0"),conv1:h(d,m,"conv1"),conv2:h(m,v,"conv2"),conv3:h(v,g,"conv3"),conv4:h(g,y,"conv4"),conv5:h(y,x,"conv5"),conv6:h(x,b,"conv6"),conv7:h(b,w,"conv7"),conv8:l(w,5*n,1,"conv8")};if(0!==s().length)throw new Error("weights remaing after extract: "+s().length);return{params:o,paramMappings:u}}(t,this.config,this.boxEncodingSize,e)},t.prototype.extractBoxes=function(e,t,n){for(var r=this,o=t.width,i=t.height,a=Math.max(o,i),s=a/o,u=a/i,c=e.shape[1],l=this.config.anchors.length,h=bt(function(){var t=e.reshape([c,c,l,r.boxEncodingSize]);return[t.slice([0,0,0,0],[c,c,l,4]),t.slice([0,0,0,4],[c,c,l,1]),r.withClassScores?Qt(t.slice([0,0,0,5],[c,c,l,r.config.classes.length]),3):ne(0)]}),p=h[0],f=h[1],d=h[2],m=[],v=0;v<c;v++)for(var g=0;g<c;g++)for(var y=0;y<l;y++){var x=ql(f.get(v,g,y,0));if(!n||n<x){var b=(g+ql(p.get(v,g,y,0)))/c*s,w=(v+ql(p.get(v,g,y,1)))/c*u,E=Math.exp(p.get(v,g,y,2))*this.config.anchors[y].x/c*s,S=Math.exp(p.get(v,g,y,3))*this.config.anchors[y].y/c*u,_=b-E/2,C=w-S/2,R={row:v,col:g,anchor:y},T=this.withClassScores?this.extractPredictedClass(d,R):{classScore:1,label:0},k=T.classScore,I=T.label;m.push(Uc({box:new sl(_,C,_+E,C+S),score:x,classScore:x*k,label:I},R))}}return p.dispose(),f.dispose(),d.dispose(),m},t.prototype.extractPredictedClass=function(n,t){var r=t.row,o=t.col,i=t.anchor;return Array(this.config.classes.length).fill(0).map(function(t,e){return n.get(r,o,i,e)}).map(function(t,e){return{classScore:t,label:e}}).reduce(function(t,e){return t.classScore>e.classScore?t:e})},t}(Hl),bh=function(){function t(t,e,n,r,o){this._config=o,this._reshapedImgDims=new qc(r.width,r.height),this._outputTensor=t,this._predictedBoxes=n,this.validateGroundTruthBoxes(e),this._groundTruth=this.assignGroundTruthToAnchors(e);var i=this.createGroundTruthMask(),a=this.createCoordAndScoreMasks(),s=a.coordBoxOffsetMask,u=a.coordBoxSizeMask,c=a.scoreMask;this.noObjectLossMask=bt(function(){return ms(c,ws(ne(1),i))}),this.objectLossMask=bt(function(){return ms(c,i)}),this.coordBoxOffsetMask=bt(function(){return ms(s,i)}),this.coordBoxSizeMask=bt(function(){return ms(u,i)});var l=bt(function(){return ws(ne(1),s.add(u).add(c))});this.groundTruthClassScoresMask=bt(function(){return ms(l,i)})}return Object.defineProperty(t.prototype,"config",{get:function(){return this._config},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"reshapedImgDims",{get:function(){return this._reshapedImgDims},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"outputTensor",{get:function(){return this._outputTensor},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"groundTruth",{get:function(){return this._groundTruth},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"predictedBoxes",{get:function(){return this._predictedBoxes},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"inputSize",{get:function(){return Math.max(this.reshapedImgDims.width,this.reshapedImgDims.height)},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"withClassScores",{get:function(){return this._config.withClassScores||1<this._config.classes.length},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"boxEncodingSize",{get:function(){return 5+(this.withClassScores?this._config.classes.length:0)},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"anchors",{get:function(){return this._config.anchors},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"numBoxes",{get:function(){return this.anchors.length},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"numCells",{get:function(){return this.inputSize/32},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"gridCellEncodingSize",{get:function(){return this.boxEncodingSize*this.numBoxes},enumerable:!0,configurable:!0}),t.prototype.toOutputTensorShape=function(t){var e=this;return bt(function(){return t.reshape([1,e.numCells,e.numCells,e.gridCellEncodingSize])})},t.prototype.computeLoss=function(){var i=this;return bt(function(){var t=i.computeNoObjectLoss(),e=i.computeObjectLoss(),n=i.computeCoordLoss(),r=i.withClassScores?i.computeClassLoss():ne(0),o=bt(function(){return t.add(e).add(n).add(r)});return{noObjectLoss:t,objectLoss:e,coordLoss:n,classLoss:r,totalLoss:o}})},t.prototype.computeNoObjectLoss=function(){var t=this;return bt(function(){return t.computeLossTerm(t.config.noObjectScale,t.toOutputTensorShape(t.noObjectLossMask),Bi(t.outputTensor))})},t.prototype.computeObjectLoss=function(){var t=this;return bt(function(){return t.computeLossTerm(t.config.objectScale,t.toOutputTensorShape(t.objectLossMask),ws(t.toOutputTensorShape(t.computeIous()),Bi(t.outputTensor)))})},t.prototype.computeClassLoss=function(){var n=this;return bt(function(){var t=bt(function(){var t=ms(Qt(n.outputTensor.reshape([n.numCells,n.numCells,n.numBoxes,n.boxEncodingSize]),3),n.groundTruthClassScoresMask),e=n.createOneHotClassScoreMask();return ws(e,t)});return n.computeLossTerm(n.config.classScale,ne(1),t)})},t.prototype.computeCoordLoss=function(){var t=this;return bt(function(){return t.computeLossTerm(t.config.coordScale,ne(1),ns(t.computeCoordBoxOffsetError(),t.computeCoordBoxSizeError()))})},t.prototype.computeCoordBoxOffsetError=function(){var r=this;return bt(function(){var t=r.toOutputTensorShape(r.coordBoxOffsetMask),e=ms(t,r.toOutputTensorShape(r.computeCoordBoxOffsets())),n=ms(t,Bi(r.outputTensor));return ws(e,n)})},t.prototype.computeCoordBoxSizeError=function(){var r=this;return bt(function(){var t=r.toOutputTensorShape(r.coordBoxSizeMask),e=ms(t,r.toOutputTensorShape(r.computeCoordBoxSizes())),n=ms(t,r.outputTensor);return ws(e,n)})},t.prototype.computeLossTerm=function(t,e,n){var r=this;return bt(function(){return ms(ne(t),r.squaredSumOverMask(e,n))})},t.prototype.squaredSumOverMask=function(t,e){return bt(function(){return Va(qi(ms(t,e)))})},t.prototype.validateGroundTruthBoxes=function(t){var a=this;t.forEach(function(t){var e=t.x,n=t.y,r=t.width,o=t.height,i=t.label;if("number"!=typeof i||i<0||i>a.config.classes.length-1)throw new Error("invalid ground truth data, expected label to be a number in [0, "+(a.config.classes.length-1)+"]");if(e<0||1<e||n<0||1<n||r<0||1<e+r||o<0||1<n+o)throw new Error("invalid ground truth data, box is out of image boundaries "+JSON.stringify({x:e,y:n,width:r,height:o}))})},t.prototype.assignGroundTruthToAnchors=function(t){var h=this;return t.map(function(t){var e=t.x,n=t.y,r=t.width,o=t.height,i=t.label;return{box:new pl(e,n,r,o),label:i}}).map(function(t){var e=t.box,n=t.label,r=e.rescale(h.reshapedImgDims),o=r.left,i=r.top,a=(r.bottom,r.right,r.x,r.y,r.width),s=r.height,u=o+a/2,c=i+s/2,l=Math.floor(u/h.inputSize*h.numCells);return{row:Math.floor(c/h.inputSize*h.numCells),col:l,anchor:h.anchors.map(function(t,e){return{idx:e,iou:Ul(new sl(0,0,32*t.x,32*t.y),new sl(0,0,a,s))}}).sort(function(t,e){return e.iou-t.iou})[0].idx,box:e,label:n}})},t.prototype.createGroundTruthMask=function(){var i=this,t=le([this.numCells,this.numCells,this.numBoxes,this.boxEncodingSize]),a=t.buffer();return this.groundTruth.forEach(function(t){for(var e=t.row,n=t.col,r=t.anchor,o=0;o<i.boxEncodingSize;o++)a.set(1,e,n,r,o)}),t},t.prototype.createCoordAndScoreMasks=function(){var c=this;return bt(function(){for(var t=le([c.numCells,c.numCells,c.numBoxes,c.boxEncodingSize]),e=le([c.numCells,c.numCells,c.numBoxes,c.boxEncodingSize]),n=le([c.numCells,c.numCells,c.numBoxes,c.boxEncodingSize]),r=t.buffer(),o=e.buffer(),i=n.buffer(),a=0;a<c.numCells;a++)for(var s=0;s<c.numCells;s++)for(var u=0;u<c.numBoxes;u++)r.set(1,a,s,u,0),r.set(1,a,s,u,1),o.set(1,a,s,u,2),o.set(1,a,s,u,3),i.set(1,a,s,u,4);return{coordBoxOffsetMask:t,coordBoxSizeMask:e,scoreMask:n}})},t.prototype.createOneHotClassScoreMask=function(){var t=le([this.numCells,this.numCells,this.numBoxes,this.boxEncodingSize]),i=t.buffer();return this.groundTruth.forEach(function(t){var e=t.row,n=t.col,r=t.anchor,o=t.label;i.set(1,e,n,r,5+o)}),t},t.prototype.computeIous=function(){var c=this,t=le([this.numCells,this.numCells,this.gridCellEncodingSize]),l=t.buffer();return this.groundTruth.forEach(function(t){var e,n=t.row,r=t.col,o=t.anchor,i=t.box,a=c.predictedBoxes.find((e={row:n,col:r,anchor:o},function(t){return e.row===t.row&&e.col===t.col&&e.anchor===t.anchor}));if(!a)throw new Error("no output box found for: row "+n+", col "+r+", anchor "+o);var s=Ul(i.rescale(c.reshapedImgDims),a.box.rescale(c.reshapedImgDims)),u=c.boxEncodingSize*o;l.set(s,n,r,u+4)}),t},t.prototype.computeCoordBoxOffsets=function(){var c=this,t=le([this.numCells,this.numCells,this.numBoxes,this.boxEncodingSize]),l=t.buffer();return this.groundTruth.forEach(function(t){var e=t.row,n=t.col,r=t.anchor,o=t.box.rescale(c.reshapedImgDims),i=o.left,a=o.top,s=((i+o.right)/2-32*n)/32,u=((a+o.bottom)/2-32*e)/32;l.set(s,e,n,r,0),l.set(u,e,n,r,1)}),t},t.prototype.computeCoordBoxSizes=function(){var c=this,t=le([this.numCells,this.numCells,this.numBoxes,this.boxEncodingSize]),l=t.buffer();return this.groundTruth.forEach(function(t){var e=t.row,n=t.col,r=t.anchor,o=t.box.rescale(c.reshapedImgDims),i=o.width,a=o.height,s=Math.log(i/(32*c.anchors[r].x)),u=Math.log(a/(32*c.anchors[r].y));l.set(s,e,n,r,2),l.set(u,e,n,r,3)}),t},t}();!function(r){function t(t,e){var n=r.call(this,t)||this;return n._trainableConfig=ch(t),n._optimizer=e,n}Wc(t,r),Object.defineProperty(t.prototype,"trainableConfig",{get:function(){return this._trainableConfig},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"optimizer",{get:function(){return this._optimizer},enumerable:!0,configurable:!0}),t.prototype.backward=function(o,i,p,a){return void 0===a&&(a={}),Vc(this,void 0,void 0,function(){var n,r,s,u,c,l,h=this;return Gc(this,function(t){switch(t.label){case 0:return e=a,n=Object.assign({},{minBoxSize:32},e),r=n.minBoxSize,s=n.reportLosses,u=tl(Cl(o),p),(c=this.filterGroundTruthBoxes(i,u,r)).length?[4,Wl(Pl(o,p))]:[2,null];case 1:return l=t.sent(),[2,this.optimizer.minimize(function(){var t=h.computeLoss(h.forwardInput(l,p),c,u),e=t.noObjectLoss,n=t.objectLoss,r=t.coordLoss,o=t.classLoss,i=t.totalLoss;if(s){var a={losses:{totalLoss:i.dataSync()[0],noObjectLoss:e.dataSync()[0],objectLoss:n.dataSync()[0],coordLoss:r.dataSync()[0],classLoss:o.dataSync()[0]},numBoxes:c.length,inputSize:p};s(a)}return i},!0)]}var e})})},t.prototype.computeLoss=function(t,e,n){var r=ch(this.config),o=Math.max(n.width,n.height);if(!o)throw new Error("computeLoss - invalid inputSize: "+o);var i=this.extractBoxes(t,n);return bt(function(){return new bh(t,e,i,n,r).computeLoss()})},t.prototype.filterGroundTruthBoxes=function(t,e,a){var s=e.height,u=e.width;return t.filter(function(t){var e=t.x,n=t.y,r=t.width,o=t.height,i=new pl(e,n,r,o).rescale({height:s,width:u});return!(i.width<a||i.height<a)})},t.prototype.load=function(e){return Vc(this,void 0,void 0,function(){return Gc(this,function(t){switch(t.label){case 0:return[4,r.prototype.load.call(this,e)];case 1:return t.sent(),this.variable(),[2]}})})}}(xh);function wh(a,s){function i(t,e,n){var r=ae(a(9*t),[3,3,t,1]),o=ae(a(t*e),[1,1,t,e]),i=re(a(e));return s.push({paramPath:n+"/depthwise_filter"},{paramPath:n+"/pointwise_filter"},{paramPath:n+"/bias"}),new sh(r,o,i)}var o=ah(a,s);function u(t,e,n,r){return void 0===r&&(r=!1),{conv0:r?o(t,e,3,n+"/conv0"):i(t,e,n+"/conv0"),conv1:i(e,e,n+"/conv1"),conv2:i(e,e,n+"/conv2")}}return{extractDenseBlock3Params:u,extractDenseBlock4Params:function(t,e,n,r){void 0===r&&(r=!1);var o=u(t,e,n,r);return{conv0:o.conv0,conv1:o.conv1,conv2:o.conv2,conv3:i(e,e,n+"/conv3")}},extractFCParams:function(t,e,n){var r=oe(a(t*e),[t,e]),o=re(a(e));return s.push({paramPath:n+"/weights"},{paramPath:n+"/bias"}),{weights:r,bias:o}}}}function Eh(t,e){var o=dl(t,e);function n(t){return{filters:o(t+"/filters",4),bias:o(t+"/bias",1)}}function r(t){var e=o(t+"/depthwise_filter",4),n=o(t+"/pointwise_filter",4),r=o(t+"/bias",1);return new sh(e,n,r)}return{extractDenseBlock3Params:function(t,e){return void 0===e&&(e=!1),{conv0:e?n(t+"/conv0"):r(t+"/conv0"),conv1:r(t+"/conv1"),conv2:r(t+"/conv2")}},extractDenseBlock4Params:function(t,e){return void 0===e&&(e=!1),{conv0:e?n(t+"/conv0"):r(t+"/conv0"),conv1:r(t+"/conv1"),conv2:r(t+"/conv2"),conv3:r(t+"/conv3")}},extractFcParams:function(t){return{weights:o(t+"/weights",2),bias:o(t+"/bias",1)}}}}var Sh=function(n){function t(t){var e=n.call(this,t)||this;return e.__name=t,e}return Wc(t,n),t.prototype.postProcess=function(t,o,e){var i=e.map(function(t){var e=t.width,n=t.height,r=o/Math.max(n,e);return{width:e*r,height:n*r}}),a=i.length;return bt(function(){var n=function(t,e){return ci([he([68],t),he([68],e)],1).as2D(1,136).as1D()},r=function(t,e){var n=i[t],r=n.width,o=n.height;return e(r,o)?Math.abs(r-o)/2:0};return t.mul(he([a,136],o)).sub(ci(Array.from(Array(a),function(t,e){return n(r(e,function(t,e){return t<e}),r(e,function(t,e){return e<t}))}))).div(ci(Array.from(Array(a),function(t,e){return n(i[e].width,i[e].height)})))})},t.prototype.forwardInput=function(e){var n=this;return bt(function(){var t=n.runNet(e);return n.postProcess(t,e.inputSize,e.inputDimensions.map(function(t){return{height:t[0],width:t[1]}}))})},t.prototype.forward=function(n){return Vc(this,void 0,void 0,function(){var e;return Gc(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,Wl(n)];case 1:return[2,e.apply(this,[t.sent()])]}})})},t.prototype.detectLandmarks=function(o){return Vc(this,void 0,void 0,function(){var u,e,n,r=this;return Gc(this,function(t){switch(t.label){case 0:return[4,Wl(o)];case 1:return u=t.sent(),e=bt(function(){return pi(r.forwardInput(u))}),[4,Promise.all(e.map(function(a,s){return Vc(r,void 0,void 0,function(){var e,n,r,o,i;return Gc(this,function(t){switch(t.label){case 0:return r=(n=Array).from,[4,a.data()];case 1:return e=r.apply(n,[t.sent()]),o=e.filter(function(t,e){return Qc(e)}),i=e.filter(function(t,e){return!Qc(e)}),[2,new Ql(Array(68).fill(0).map(function(t,e){return new jc(o[e],i[e])}),{height:u.getInputHeight(s),width:u.getInputWidth(s)})]}})})}))];case 2:return n=t.sent(),e.forEach(function(t){return t.dispose()}),[2,u.isBatchInput?n:n[0]]}})})},t}(Hl);function _h(t,e){return bt(function(){return ns(aa(t,e.weights),e.bias)})}function Ch(o,i,a){return void 0===a&&(a=!1),bt(function(){var t=As(a?ns(pa(o,i.conv0.filters,[2,2],"same"),i.conv0.bias):oh(o,i.conv0,[2,2])),e=oh(t,i.conv1,[1,1]),n=oh(As(ns(t,e)),i.conv2,[1,1]),r=oh(As(ns(t,ns(e,n))),i.conv3,[1,1]);return As(ns(t,ns(e,ns(n,r))))})}var Rh=function(t){function e(){return t.call(this,"FaceLandmark68Net")||this}return Wc(e,t),e.prototype.runNet=function(e){var n=this.params;if(!n)throw new Error("FaceLandmark68Net - load model before inference");return bt(function(){var t=Ch(Gl(e.toBatchTensor(112,!0),[122.782,117.001,104.298]).div(ne(255)),n.dense0,!0);return t=Ch(t=Ch(t=Ch(t,n.dense1),n.dense2),n.dense3),_h((t=Ca(t,[7,7],[2,2],"valid")).as2D(t.shape[0],-1),n.fc)})},e.prototype.getDefaultModelName=function(){return"face_landmark_68_model"},e.prototype.extractParamsFromWeigthMap=function(t){return r=Eh(e=t,n=[]),o=r.extractDenseBlock4Params,i=r.extractFcParams,a={dense0:o("dense0",!0),dense1:o("dense1"),dense2:o("dense2"),dense3:o("dense3"),fc:i("fc")},fl(e,n),{params:a,paramMappings:n};var e,n,r,o,i,a},e.prototype.extractParams=function(t){return function(t){var e=[],n=ml(t),r=n.extractWeights,o=n.getRemainingWeights,i=wh(r,e),a=i.extractDenseBlock4Params,s=i.extractFCParams,u=a(3,32,"dense0",!0),c=a(32,64,"dense1"),l=a(64,128,"dense2"),h=a(128,256,"dense3"),p=s(256,136,"fc");if(0!==o().length)throw new Error("weights remaing after extract: "+o().length);return{paramMappings:e,params:{dense0:u,dense1:c,dense2:l,dense3:h,fc:p}}}(t)},e}(Sh);function Th(r,o,i){return void 0===i&&(i=!1),bt(function(){var t=As(i?ns(pa(r,o.conv0.filters,[2,2],"same"),o.conv0.bias):oh(r,o.conv0,[2,2])),e=oh(t,o.conv1,[1,1]),n=oh(As(ns(t,e)),o.conv2,[1,1]);return As(ns(t,ns(e,n)))})}var kh=function(t){function e(){return t.call(this,"FaceLandmark68TinyNet")||this}return Wc(e,t),e.prototype.runNet=function(e){var n=this.params;if(!n)throw new Error("FaceLandmark68TinyNet - load model before inference");return bt(function(){var t=Th(Gl(e.toBatchTensor(112,!0),[122.782,117.001,104.298]).div(ne(255)),n.dense0,!0);return t=Th(t=Th(t,n.dense1),n.dense2),_h((t=Ca(t,[14,14],[2,2],"valid")).as2D(t.shape[0],-1),n.fc)})},e.prototype.getDefaultModelName=function(){return"face_landmark_68_tiny_model"},e.prototype.extractParamsFromWeigthMap=function(t){return r=Eh(e=t,n=[]),o=r.extractDenseBlock3Params,i=r.extractFcParams,a={dense0:o("dense0",!0),dense1:o("dense1"),dense2:o("dense2"),fc:i("fc")},fl(e,n),{params:a,paramMappings:n};var e,n,r,o,i,a},e.prototype.extractParams=function(t){return function(t){var e=[],n=ml(t),r=n.extractWeights,o=n.getRemainingWeights,i=wh(r,e),a=i.extractDenseBlock3Params,s=i.extractFCParams,u=a(3,32,"dense0",!0),c=a(32,64,"dense1"),l=a(64,128,"dense2"),h=s(128,136,"fc");if(0!==o().length)throw new Error("weights remaing after extract: "+o().length);return{paramMappings:e,params:{dense0:u,dense1:c,dense2:l,fc:h}}}(t)},e}(Sh),Ih=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return Wc(e,t),e}(Rh);function Dh(t,e,n,r,o){void 0===o&&(o="same");var i,a,s=e.conv,u=s.filters,c=s.bias,l=pa(t,u,n,o);return l=ns(l,c),i=l,a=e.scale,l=ns(ms(i,a.weights),a.biases),r?As(l):l}function Nh(t,e){return Dh(t,e,[1,1],!1)}function Ah(t,e){return Dh(t,e,[2,2],!0,"valid")}function Mh(u,c){function l(t,e,n,r){var o=function(t,e,n){var r=u(t),o=r.length/(e*n*n);if(Yc(o))throw new Error("depth has to be an integer: "+o+", weights.length: "+r.length+", numFilters: "+e+", filterSize: "+n);return bt(function(){return Os(ae(r,[e,o,n,n]),[2,3,1,0])})}(t,e,n),i=re(u(e));return c.push({paramPath:r+"/filters"},{paramPath:r+"/bias"}),{filters:o,bias:i}}function i(t,e,n,r){var o,i,a,s;return{conv:l(t,e,n,r+"/conv"),scale:(i=r+"/scale",a=re(u(o=e)),s=re(u(o)),c.push({paramPath:i+"/weights"},{paramPath:i+"/biases"}),{weights:a,biases:s})}}return{extractConvLayerParams:i,extractResidualLayerParams:function(t,e,n,r,o){return void 0===o&&(o=!1),{conv1:i((o?.5:1)*t,e,n,r+"/conv1"),conv2:i(t,e,n,r+"/conv2")}}}}function Oh(t,e){var n=dl(t,e);function r(t){var e;return{conv:{filters:n(t+"/conv/filters",4),bias:n(t+"/conv/bias",1)},scale:{weights:n((e=t)+"/scale/weights",1),biases:n(e+"/scale/biases",1)}}}return{extractConvLayerParams:r,extractResidualLayerParams:function(t){return{conv1:r(t+"/conv1"),conv2:r(t+"/conv2")}}}}function Ph(t,e){var n,r,o=(n=t,r=e.conv1,Dh(n,r,[1,1],!0));return o=Nh(o,e.conv2),o=ns(o,t),o=As(o)}function Fh(t,e){var n=Ah(t,e.conv1);n=Nh(n,e.conv2);var r=Ca(t,2,2,"valid"),o=le(r.shape),i=r.shape[3]!==n.shape[3];if(r.shape[1]!==n.shape[1]||r.shape[2]!==n.shape[2]){var a=n.shape.slice();a[1]=1;var s=le(a),u=(n=So([n,s],1)).shape.slice();u[2]=1;var c=le(u);n=So([n,c],2)}return r=i?So([r,o],3):r,n=ns(r,n),n=As(n)}var Lh=function(t){function e(){return t.call(this,"FaceRecognitionNet")||this}return Wc(e,t),e.prototype.forwardInput=function(n){var r=this.params;if(!r)throw new Error("FaceRecognitionNet - load model before inference");return bt(function(){var t=Ah(Gl(n.toBatchTensor(150,!0).toFloat(),[122.782,117.001,104.298]).div(ne(256)),r.conv32_down),e=(t=Fh(t=Ph(t=Ph(t=Fh(t=Ph(t=Ph(t=Fh(t=Ph(t=Ph(t=Ph(t=Fh(t=Ph(t=Ph(t=Ph(t=_a(t,3,2,"valid"),r.conv32_1),r.conv32_2),r.conv32_3),r.conv64_down),r.conv64_1),r.conv64_2),r.conv64_3),r.conv128_down),r.conv128_1),r.conv128_2),r.conv256_down),r.conv256_1),r.conv256_2),r.conv256_down_out)).mean([1,2]);return aa(e,r.fc)})},e.prototype.forward=function(n){return Vc(this,void 0,void 0,function(){var e;return Gc(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,Wl(n)];case 1:return[2,e.apply(this,[t.sent()])]}})})},e.prototype.computeFaceDescriptor=function(i){return Vc(this,void 0,void 0,function(){var e,n,r,o=this;return Gc(this,function(t){switch(t.label){case 0:return[4,Wl(i)];case 1:return e=t.sent(),n=bt(function(){return pi(o.forwardInput(e))}),[4,Promise.all(n.map(function(t){return t.data()}))];case 2:return r=t.sent(),n.forEach(function(t){return t.dispose()}),[2,e.isBatchInput?r:r[0]]}})})},e.prototype.getDefaultModelName=function(){return"face_recognition_model"},e.prototype.extractParamsFromWeigthMap=function(t){return function(t){var e=[],n=Oh(t,e),r=n.extractConvLayerParams,o=n.extractResidualLayerParams,i=r("conv32_down"),a=o("conv32_1"),s=o("conv32_2"),u=o("conv32_3"),c=o("conv64_down"),l=o("conv64_1"),h=o("conv64_2"),p=o("conv64_3"),f=o("conv128_down"),d=o("conv128_1"),m=o("conv128_2"),v=o("conv256_down"),g=o("conv256_1"),y=o("conv256_2"),x=o("conv256_down_out"),b=t.fc;if(e.push({originalPath:"fc",paramPath:"fc"}),!$c(b))throw new Error("expected weightMap[fc] to be a Tensor2D, instead have "+b);var w={conv32_down:i,conv32_1:a,conv32_2:s,conv32_3:u,conv64_down:c,conv64_1:l,conv64_2:h,conv64_3:p,conv128_down:f,conv128_1:d,conv128_2:m,conv256_down:v,conv256_1:g,conv256_2:y,conv256_down_out:x,fc:b};return fl(t,e),{params:w,paramMappings:e}}(t)},e.prototype.extractParams=function(t){return function(t){var e=ml(t),n=e.extractWeights,r=e.getRemainingWeights,o=[],i=Mh(n,o),a=i.extractConvLayerParams,s=i.extractResidualLayerParams,u=a(4704,32,7,"conv32_down"),c=s(9216,32,3,"conv32_1"),l=s(9216,32,3,"conv32_2"),h=s(9216,32,3,"conv32_3"),p=s(36864,64,3,"conv64_down",!0),f=s(36864,64,3,"conv64_1"),d=s(36864,64,3,"conv64_2"),m=s(36864,64,3,"conv64_3"),v=s(147456,128,3,"conv128_down",!0),g=s(147456,128,3,"conv128_1"),y=s(147456,128,3,"conv128_2"),x=s(589824,256,3,"conv256_down",!0),b=s(589824,256,3,"conv256_1"),w=s(589824,256,3,"conv256_2"),E=s(589824,256,3,"conv256_down_out"),S=bt(function(){return Os(oe(n(32768),[128,256]),[1,0])});if(o.push({paramPath:"fc"}),0!==r().length)throw new Error("weights remaing after extract: "+r().length);return{params:{conv32_down:u,conv32_1:c,conv32_2:l,conv32_3:h,conv64_down:p,conv64_1:f,conv64_2:d,conv64_3:m,conv128_down:v,conv128_1:g,conv128_2:y,conv256_down:x,conv256_1:b,conv256_2:w,conv256_down_out:E,fc:S},paramMappings:o}}(t)},e}(Hl);var Bh=function(){function t(t){var e=void 0===t?{}:t,n=e.minFaceSize,r=e.scaleFactor,o=e.maxNumScales,i=e.scoreThresholds,a=e.scaleSteps;if(this._name="MtcnnOptions",this._minFaceSize=n||20,this._scaleFactor=r||.709,this._maxNumScales=o||10,this._scoreThresholds=i||[.6,.7,.7],this._scaleSteps=a,"number"!=typeof this._minFaceSize||this._minFaceSize<0)throw new Error(this._name+" - expected minFaceSize to be a number > 0");if("number"!=typeof this._scaleFactor||this._scaleFactor<=0||1<=this._scaleFactor)throw new Error(this._name+" - expected scaleFactor to be a number between 0 and 1");if("number"!=typeof this._maxNumScales||this._maxNumScales<0)throw new Error(this._name+" - expected maxNumScales to be a number > 0");if(!Array.isArray(this._scoreThresholds)||3!==this._scoreThresholds.length||this._scoreThresholds.some(function(t){return"number"!=typeof t}))throw new Error(this._name+" - expected scoreThresholds to be an array of numbers of length 3");if(this._scaleSteps&&(!Array.isArray(this._scaleSteps)||this._scaleSteps.some(function(t){return"number"!=typeof t})))throw new Error(this._name+" - expected scaleSteps to be an array of numbers")}return Object.defineProperty(t.prototype,"minFaceSize",{get:function(){return this._minFaceSize},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"scaleFactor",{get:function(){return this._scaleFactor},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"maxNumScales",{get:function(){return this._maxNumScales},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"scoreThresholds",{get:function(){return this._scoreThresholds},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"scaleSteps",{get:function(){return this._scaleSteps},enumerable:!0,configurable:!0}),t}();function zh(l,h){function i(t,e,n,r,o){var i=ae(l(t*e*n*n),[n,n,t,e]),a=re(l(e));return h.push({paramPath:r+"/filters"},{paramPath:r+"/"+(o?"batch_norm_offset":"bias")}),{filters:i,bias:a}}function p(t,e,n,r){var o=i(t,e,n,r,!0);return{filters:o.filters,batch_norm_offset:o.bias}}function t(t,e,n){var r,o,i,a,s,u,c;return{depthwise_conv:(o=n+"/depthwise_conv",i=ae(l(9*(r=t)),[3,3,r,1]),a=re(l(r)),s=re(l(r)),u=re(l(r)),c=re(l(r)),h.push({paramPath:o+"/filters"},{paramPath:o+"/batch_norm_scale"},{paramPath:o+"/batch_norm_offset"},{paramPath:o+"/batch_norm_mean"},{paramPath:o+"/batch_norm_variance"}),{filters:i,batch_norm_scale:a,batch_norm_offset:s,batch_norm_mean:u,batch_norm_variance:c}),pointwise_conv:p(t,e,1,n+"/pointwise_conv")}}return{extractMobilenetV1Params:function(){return{conv_0:p(3,32,3,"mobilenetv1/conv_0"),conv_1:t(32,64,"mobilenetv1/conv_1"),conv_2:t(64,128,"mobilenetv1/conv_2"),conv_3:t(128,128,"mobilenetv1/conv_3"),conv_4:t(128,256,"mobilenetv1/conv_4"),conv_5:t(256,256,"mobilenetv1/conv_5"),conv_6:t(256,512,"mobilenetv1/conv_6"),conv_7:t(512,512,"mobilenetv1/conv_7"),conv_8:t(512,512,"mobilenetv1/conv_8"),conv_9:t(512,512,"mobilenetv1/conv_9"),conv_10:t(512,512,"mobilenetv1/conv_10"),conv_11:t(512,512,"mobilenetv1/conv_11"),conv_12:t(512,1024,"mobilenetv1/conv_12"),conv_13:t(1024,1024,"mobilenetv1/conv_13")}},extractPredictionLayerParams:function(){return{conv_0:p(1024,256,1,"prediction_layer/conv_0"),conv_1:p(256,512,3,"prediction_layer/conv_1"),conv_2:p(512,128,1,"prediction_layer/conv_2"),conv_3:p(128,256,3,"prediction_layer/conv_3"),conv_4:p(256,128,1,"prediction_layer/conv_4"),conv_5:p(128,256,3,"prediction_layer/conv_5"),conv_6:p(256,64,1,"prediction_layer/conv_6"),conv_7:p(64,128,3,"prediction_layer/conv_7"),box_predictor_0:{box_encoding_predictor:i(512,12,1,"prediction_layer/box_predictor_0/box_encoding_predictor"),class_predictor:i(512,9,1,"prediction_layer/box_predictor_0/class_predictor")},box_predictor_1:{box_encoding_predictor:i(1024,24,1,"prediction_layer/box_predictor_1/box_encoding_predictor"),class_predictor:i(1024,18,1,"prediction_layer/box_predictor_1/class_predictor")},box_predictor_2:{box_encoding_predictor:i(512,24,1,"prediction_layer/box_predictor_2/box_encoding_predictor"),class_predictor:i(512,18,1,"prediction_layer/box_predictor_2/class_predictor")},box_predictor_3:{box_encoding_predictor:i(256,24,1,"prediction_layer/box_predictor_3/box_encoding_predictor"),class_predictor:i(256,18,1,"prediction_layer/box_predictor_3/class_predictor")},box_predictor_4:{box_encoding_predictor:i(256,24,1,"prediction_layer/box_predictor_4/box_encoding_predictor"),class_predictor:i(256,18,1,"prediction_layer/box_predictor_4/class_predictor")},box_predictor_5:{box_encoding_predictor:i(128,24,1,"prediction_layer/box_predictor_5/box_encoding_predictor"),class_predictor:i(128,18,1,"prediction_layer/box_predictor_5/class_predictor")}}}}}function Wh(t){var e=[],n=function(t,e){var i=dl(t,e);function a(t,e,n){return{filters:i(t+"/Conv2d_"+e+"_pointwise/weights",4,n+"/filters"),batch_norm_offset:i(t+"/Conv2d_"+e+"_pointwise/convolution_bn_offset",1,n+"/batch_norm_offset")}}function n(t){var e="mobilenetv1/conv_"+t,n="MobilenetV1/Conv2d_"+t+"_depthwise",r=e+"/depthwise_conv",o=e+"/pointwise_conv";return{depthwise_conv:{filters:i(n+"/depthwise_weights",4,r+"/filters"),batch_norm_scale:i(n+"/BatchNorm/gamma",1,r+"/batch_norm_scale"),batch_norm_offset:i(n+"/BatchNorm/beta",1,r+"/batch_norm_offset"),batch_norm_mean:i(n+"/BatchNorm/moving_mean",1,r+"/batch_norm_mean"),batch_norm_variance:i(n+"/BatchNorm/moving_variance",1,r+"/batch_norm_variance")},pointwise_conv:a("MobilenetV1",t,o)}}function r(t,e){return{filters:i(t+"/weights",4,e+"/filters"),bias:i(t+"/biases",1,e+"/bias")}}function o(t){return{box_encoding_predictor:r("Prediction/BoxPredictor_"+t+"/BoxEncodingPredictor","prediction_layer/box_predictor_"+t+"/box_encoding_predictor"),class_predictor:r("Prediction/BoxPredictor_"+t+"/ClassPredictor","prediction_layer/box_predictor_"+t+"/class_predictor")}}return{extractMobilenetV1Params:function(){return{conv_0:a("MobilenetV1",0,"mobilenetv1/conv_0"),conv_1:n(1),conv_2:n(2),conv_3:n(3),conv_4:n(4),conv_5:n(5),conv_6:n(6),conv_7:n(7),conv_8:n(8),conv_9:n(9),conv_10:n(10),conv_11:n(11),conv_12:n(12),conv_13:n(13)}},extractPredictionLayerParams:function(){return{conv_0:a("Prediction",0,"prediction_layer/conv_0"),conv_1:a("Prediction",1,"prediction_layer/conv_1"),conv_2:a("Prediction",2,"prediction_layer/conv_2"),conv_3:a("Prediction",3,"prediction_layer/conv_3"),conv_4:a("Prediction",4,"prediction_layer/conv_4"),conv_5:a("Prediction",5,"prediction_layer/conv_5"),conv_6:a("Prediction",6,"prediction_layer/conv_6"),conv_7:a("Prediction",7,"prediction_layer/conv_7"),box_predictor_0:o(0),box_predictor_1:o(1),box_predictor_2:o(2),box_predictor_3:o(3),box_predictor_4:o(4),box_predictor_5:o(5)}}}}(t,e),r=n.extractMobilenetV1Params,o=n.extractPredictionLayerParams,i=t["Output/extra_dim"];if(e.push({originalPath:"Output/extra_dim",paramPath:"output_layer/extra_dim"}),!Kc(i))throw new Error("expected weightMap['Output/extra_dim'] to be a Tensor3D, instead have "+i);var a={mobilenetv1:r(),prediction_layer:o(),output_layer:{extra_dim:i}};return fl(t,e),{params:a,paramMappings:e}}function Uh(e,n,r){return bt(function(){var t=pa(e,n.filters,r,"same");return t=ns(t,n.batch_norm_offset),_i(t,0,6)})}var Vh=.0010000000474974513;function Gh(t,e){return bt(function(){var u=null,c=Uh(t,e.conv_0,[2,2]);if([e.conv_1,e.conv_2,e.conv_3,e.conv_4,e.conv_5,e.conv_6,e.conv_7,e.conv_8,e.conv_9,e.conv_10,e.conv_11,e.conv_12,e.conv_13].forEach(function(t,e){var n,r,o,i,a=e+1,s=(n=a,[2,4,6,12].some(function(t){return t===n})?[2,2]:[1,1]);r=c,o=t.depthwise_conv,i=s,c=Uh(c=bt(function(){var t=da(r,o.filters,i,"same");return t=Ji(t,o.batch_norm_mean,o.batch_norm_variance,Vh,o.batch_norm_scale,o.batch_norm_offset),_i(t,0,6)}),t.pointwise_conv,[1,1]),11===a&&(u=c)}),null===u)throw new Error("mobileNetV1 - output of conv layer 11 is null");return{out:c,conv11:u}})}function qh(t,e,n){var r=Math.min(t.get(e,0),t.get(e,2)),o=Math.min(t.get(e,1),t.get(e,3)),i=Math.max(t.get(e,0),t.get(e,2)),a=Math.max(t.get(e,1),t.get(e,3)),s=Math.min(t.get(n,0),t.get(n,2)),u=Math.min(t.get(n,1),t.get(n,3)),c=Math.max(t.get(n,0),t.get(n,2)),l=Math.max(t.get(n,1),t.get(n,3)),h=(i-r)*(a-o),p=(c-s)*(l-u);if(h<=0||p<=0)return 0;var f=Math.max(r,s),d=Math.max(o,u),m=Math.min(i,c),v=Math.min(a,l),g=Math.max(m-f,0)*Math.max(v-d,0);return g/(h+p-g)}function jh(t,e){var n,r,o=(n=pi(Os(t,[1,0])),{sizes:r=[ws(n[2],n[0]),ws(n[3],n[1])],centers:[ns(n[0],as(r[0],ne(2))),ns(n[1],as(r[1],ne(2)))]}),i=o.sizes,a=o.centers,s=pi(Os(e,[1,0])),u=as(ms(ki(as(s[2],ne(5))),i[0]),ne(2)),c=ns(ms(as(s[0],ne(10)),i[0]),a[0]),l=as(ms(ki(as(s[3],ne(5))),i[1]),ne(2)),h=ns(ms(as(s[1],ne(10)),i[1]),a[1]);return Os(ci([ws(c,u),ws(h,l),ns(c,u),ns(h,l)]),[1,0])}function Hh(e,n){return bt(function(){var t=e.shape[0];return{boxPredictionEncoding:ai(ih(e,n.box_encoding_predictor),[t,-1,1,4]),classPrediction:ai(ih(e,n.class_predictor),[t,-1,3])}})}var $h=function(){function t(t){var e=void 0===t?{}:t,n=e.minConfidence,r=e.maxResults;if(this._name="SsdMobilenetv1Options",this._minConfidence=n||.5,this._maxResults=r||100,"number"!=typeof this._minConfidence||this._minConfidence<=0||1<=this._minConfidence)throw new Error(this._name+" - expected minConfidence to be a number between 0 and 1");if("number"!=typeof this._maxResults)throw new Error(this._name+" - expected maxResults to be a number")}return Object.defineProperty(t.prototype,"minConfidence",{get:function(){return this._minConfidence},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"maxResults",{get:function(){return this._maxResults},enumerable:!0,configurable:!0}),t}(),Kh=function(t){function e(){return t.call(this,"SsdMobilenetv1")||this}return Wc(e,t),e.prototype.forwardInput=function(u){var c=this.params;if(!c)throw new Error("SsdMobilenetv1 - load model before inference");return bt(function(){var l,h,p,o,i,a,t=u.toBatchTensor(512,!1).toFloat(),e=Gh(ws(ms(t,ne(.007843137718737125)),ne(1)),c.mobilenetv1),n=(l=e.out,h=e.conv11,p=c.prediction_layer,bt(function(){var t=Uh(Uh(l,p.conv_0,[1,1]),p.conv_1,[2,2]),e=Uh(Uh(t,p.conv_2,[1,1]),p.conv_3,[2,2]),n=Uh(Uh(e,p.conv_4,[1,1]),p.conv_5,[2,2]),r=Uh(Uh(n,p.conv_6,[1,1]),p.conv_7,[2,2]),o=Hh(h,p.box_predictor_0),i=Hh(l,p.box_predictor_1),a=Hh(t,p.box_predictor_2),s=Hh(e,p.box_predictor_3),u=Hh(n,p.box_predictor_4),c=Hh(r,p.box_predictor_5);return{boxPredictions:So([o.boxPredictionEncoding,i.boxPredictionEncoding,a.boxPredictionEncoding,s.boxPredictionEncoding,u.boxPredictionEncoding,c.boxPredictionEncoding],1),classPredictions:So([o.classPrediction,i.classPrediction,a.classPrediction,s.classPrediction,u.classPrediction,c.classPrediction],1)}})),r=n.boxPredictions,s=n.classPredictions;return 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b=E.apply(w,[t.sent()]),e=b,n=h,i=.5,a=p,r=(o=g).shape[0],s=Math.min(n,r),u=e.map(function(t,e){return{score:t,boxIndex:e}}).filter(function(t){return t.score>a}).sort(function(t,e){return e.score-t.score}),c=[],u.forEach(function(t){if(!(c.length>=s)){for(var e=t.score,n=c.length-1;0<=n;--n){var r=qh(o,t.boxIndex,c[n]);if(0!==r&&(t.score*=r<=i?1:0,t.score<=a))break}e===t.score&&c.push(t.boxIndex)}}),S=c,_=f.getReshapedInputDimensions(0),C=f.inputSize,R=C/_.width,T=C/_.height,k=S.map(function(t){var e=[Math.max(0,g.get(t,0)),Math.min(1,g.get(t,2))].map(function(t){return t*T}),n=e[0],r=e[1],o=[Math.max(0,g.get(t,1)),Math.min(1,g.get(t,3))].map(function(t){return t*R}),i=o[0],a=o[1];return new $l(b[t],new pl(i,n,a-i,r-n),{height:f.getInputHeight(0),width:f.getInputWidth(0)})}),g.dispose(),y.dispose(),[2,k]}var o,e,n,i,a,r,s,u,c})})},e.prototype.getDefaultModelName=function(){return"ssd_mobilenetv1_model"},e.prototype.extractParamsFromWeigthMap=function(t){return Wh(t)},e.prototype.extractParams=function(t){return function(t){var e=[],n=ml(t),r=n.extractWeights,o=n.getRemainingWeights,i=zh(r,e),a=i.extractMobilenetV1Params,s=i.extractPredictionLayerParams,u=a(),c=s(),l={extra_dim:ie(r(20472),[1,5118,4])};if(e.push({paramPath:"output_layer/extra_dim"}),0!==o().length)throw new Error("weights remaing after extract: "+o().length);return{params:{mobilenetv1:u,prediction_layer:c,output_layer:l},paramMappings:e}}(t)},e}(Hl);function Xh(t){var e=new Kh;return e.extractWeights(t),e}var Yh=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return Wc(e,t),e}(Kh),Qh=function(e){function t(){var t=null!==e&&e.apply(this,arguments)||this;return t._name="TinyFaceDetectorOptions",t}return Wc(t,e),t}(yh),Jh=function(){function t(){}return t.prototype.then=function(n){return Vc(this,void 0,void 0,function(){var e;return Gc(this,function(t){switch(t.label){case 0:return e=n,[4,this.run()];case 1:return[2,e.apply(void 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t=h([3,28,48,64],"rnet",!0),e=c(576,128,"rnet/fc1"),n=l(128,"rnet/prelu4_alpha"),r=c(128,2,"rnet/fc2_1"),o=c(128,4,"rnet/fc2_2");return Uc({},t,{fc1:e,prelu4_alpha:n,fc2_1:r,fc2_2:o})},extractONetParams:function(){var t=h([3,32,64,64],"onet"),e=u(64,128,2,"onet/conv4"),n=l(128,"onet/prelu4_alpha"),r=c(1152,256,"onet/fc1"),o=l(256,"onet/prelu5_alpha"),i=c(256,2,"onet/fc2_1"),a=c(256,4,"onet/fc2_2"),s=c(256,10,"onet/fc2_3");return Uc({},t,{conv4:e,prelu4_alpha:n,fc1:r,prelu5_alpha:o,fc2_1:i,fc2_2:a,fc2_3:s})}}}function np(t){var e=[],n=function(t,e){var n=dl(t,e);function u(t){return{filters:n(t+"/weights",4,t+"/filters"),bias:n(t+"/bias",1)}}function c(t){return{weights:n(t+"/weights",2),bias:n(t+"/bias",1)}}function l(t){return n(t,1)}function h(t){return{conv1:u(t+"/conv1"),prelu1_alpha:l(t+"/prelu1_alpha"),conv2:u(t+"/conv2"),prelu2_alpha:l(t+"/prelu2_alpha"),conv3:u(t+"/conv3"),prelu3_alpha:l(t+"/prelu3_alpha")}}return{extractPNetParams:function(){var t=h("pnet"),e=u("pnet/conv4_1"),n=u("pnet/conv4_2");return Uc({},t,{conv4_1:e,conv4_2:n})},extractRNetParams:function(){var t=h("rnet"),e=c("rnet/fc1"),n=l("rnet/prelu4_alpha"),r=c("rnet/fc2_1"),o=c("rnet/fc2_2");return Uc({},t,{fc1:e,prelu4_alpha:n,fc2_1:r,fc2_2:o})},extractONetParams:function(){var t=h("onet"),e=u("onet/conv4"),n=l("onet/prelu4_alpha"),r=c("onet/fc1"),o=l("onet/prelu5_alpha"),i=c("onet/fc2_1"),a=c("onet/fc2_2"),s=c("onet/fc2_3");return Uc({},t,{conv4:e,prelu4_alpha:n,fc1:r,prelu5_alpha:o,fc2_1:i,fc2_2:a,fc2_3:s})}}}(t,e),r=n.extractPNetParams,o=n.extractRNetParams,i=n.extractONetParams,a=r(),s=o(),u=i();return fl(t,e),{params:{pnet:a,rnet:s,onet:u},paramMappings:e}}function rp(t,e){var n=e[0],r=e[1];return{height:Math.floor(n*t),width:Math.floor(r*t)}}var op=function(o){function t(t,e,n,r){return o.call(this,{left:t,top:e,right:n,bottom:r},!0)||this}return Wc(t,o),t}(al);function ip(t){return bt(function(){return ms(ws(t,ne(127.5)),ne(.0078125))})}function ap(t,e){return bt(function(){return ns(As(t),ms(e,Oi(As(Oi(t)))))})}function sp(e,n,r){return void 0===r&&(r=!1),bt(function(){var t=ih(e,n.conv1,"valid");return t=ap(t,n.prelu1_alpha),t=ap(t=ih(t=_a(t,r?[2,2]:[3,3],[2,2],"same"),n.conv2,"valid"),n.prelu2_alpha),t=ap(t=ih(t=r?t:_a(t,[3,3],[2,2],"valid"),n.conv3,"valid"),n.prelu3_alpha)})}function up(h,t,u,p,c){c.stage1=[];var e=t.map(function(l){return bt(function(){var o,i,r,a,t={scale:l},e=(o=h,i=l,bt(function(){var t=rp(i,o.shape.slice(1)),e=t.height,n=t.width,r=ip(xu.resizeBilinear(o,[e,n]));return Os(r,[0,2,1,3])})),n=Date.now(),s=(r=e,a=p,bt(function(){var t=sp(r,a,!0),e=ih(t,a.conv4_1,"valid"),n=$o(Ba(e,3),3);return{prob:Qt(ws(e,n),3),regions:ih(t,a.conv4_2,"valid")}})),u=s.prob,c=s.regions;return t.pnet=Date.now()-n,{scoresTensor:pi(pi(u,3)[1])[0],regionsTensor:pi(c)[0],scale:l,statsForScale:t}})}).map(function(t){var e=t.scoresTensor,n=t.regionsTensor,r=t.scale,o=t.statsForScale,i=function(e,n,r,t){for(var o=[],i=0;i<e.shape[0];i++)for(var a=0;a<e.shape[1];a++)e.get(i,a)>=t&&o.push(new jc(a,i));return o.map(function(t){return{cell:new sl(Math.round((t.y*Zh+1)/r),Math.round((t.x*Zh+1)/r),Math.round((t.y*Zh+tp)/r),Math.round((t.x*Zh+tp)/r)),score:e.get(t.y,t.x),region:new op(n.get(t.y,t.x,0),n.get(t.y,t.x,1),n.get(t.y,t.x,2),n.get(t.y,t.x,3))}})}(e,n,r,u);if(e.dispose(),n.dispose(),!i.length)return c.stage1.push(o),[];var a=Date.now(),s=Vl(i.map(function(t){return t.cell}),i.map(function(t){return t.score}),.5);return o.nms=Date.now()-a,o.numBoxes=s.length,c.stage1.push(o),s.map(function(t){return i[t]})}).reduce(function(t,e){return t.concat(e)},[]),n=[],r=[];if(0<e.length){var o=Date.now(),i=Vl(e.map(function(t){return t.cell}),e.map(function(t){return t.score}),.7);c.stage1_nms=Date.now()-o,r=i.map(function(t){return e[t].score}),n=i.map(function(t){return e[t]}).map(function(t){var e=t.cell,n=t.region;return new 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e,n,r,o,i,a,s,u,c,l,h,p,f,d;return Gc(this,function(t){switch(t.label){case 0:return e=Date.now(),[4,cp(m,v,{width:24,height:24})];case 1:return n=t.sent(),x.stage2_extractImagePatches=Date.now()-e,e=Date.now(),r=n.map(function(t){var a,s,e=(a=t,s=y,bt(function(){var t=sp(a,s),e=ap(_h(ai(t,[t.shape[0],s.fc1.weights.shape[0]]),s.fc1),s.prelu4_alpha),n=_h(e,s.fc2_1),r=$o(Ba(n,1),1),o=Qt(ws(n,r),1),i=_h(e,s.fc2_2);return{scores:pi(o,1)[1],regions:i}}));return t.dispose(),e}),x.stage2_rnet=Date.now()-e,o=1<r.length?So(r.map(function(t){return t.scores})):r[0].scores,s=(a=Array).from,[4,o.data()];case 2:return i=s.apply(a,[t.sent()]),o.dispose(),u=i.map(function(t,e){return{score:t,idx:e}}).filter(function(t){return t.score>g}).map(function(t){return t.idx}),c=u.map(function(t){return v[t]}),l=u.map(function(t){return i[t]}),h=[],p=[],0<c.length&&(e=Date.now(),f=Vl(c,l,.7),x.stage2_nms=Date.now()-e,d=f.map(function(t){return new op(r[u[t]].regions.get(0,0),r[u[t]].regions.get(0,1),r[u[t]].regions.get(0,2),r[u[t]].regions.get(0,3))}),p=f.map(function(t){return l[t]}),h=f.map(function(t,e){return c[t].calibrate(d[e])})),r.forEach(function(t){t.regions.dispose(),t.scores.dispose()}),[2,{boxes:h,scores:p}]}})})}function hp(v,g,y,x,b){return Vc(this,void 0,void 0,function(){var e,n,o,r,i,a,s,u,c,l,h,p,f,d,m;return Gc(this,function(t){switch(t.label){case 0:return e=Date.now(),[4,cp(v,g,{width:48,height:48})];case 1:return n=t.sent(),b.stage3_extractImagePatches=Date.now()-e,e=Date.now(),o=n.map(function(t){var s,u,e=(s=t,u=x,bt(function(){var t=sp(s,u);t=ap(t=ih(t=_a(t,[2,2],[2,2],"same"),u.conv4,"valid"),u.prelu4_alpha);var e=ap(_h(ai(t,[t.shape[0],u.fc1.weights.shape[0]]),u.fc1),u.prelu5_alpha),n=_h(e,u.fc2_1),r=$o(Ba(n,1),1),o=Qt(ws(n,r),1),i=_h(e,u.fc2_2),a=_h(e,u.fc2_3);return{scores:pi(o,1)[1],regions:i,points:a}}));return t.dispose(),e}),b.stage3_onet=Date.now()-e,r=1<o.length?So(o.map(function(t){return t.scores})):o[0].scores,s=(a=Array).from,[4,r.data()];case 2:return i=s.apply(a,[t.sent()]),r.dispose(),u=i.map(function(t,e){return{score:t,idx:e}}).filter(function(t){return t.score>y}).map(function(t){return t.idx}),c=u.map(function(t){return new op(o[t].regions.get(0,0),o[t].regions.get(0,1),o[t].regions.get(0,2),o[t].regions.get(0,3))}),l=u.map(function(t,e){return g[t].calibrate(c[e])}),h=u.map(function(t){return i[t]}),p=[],f=[],d=[],0<l.length&&(e=Date.now(),m=Vl(l,h,.7,!1),b.stage3_nms=Date.now()-e,p=m.map(function(t){return l[t]}),f=m.map(function(t){return h[t]}),d=m.map(function(n,r){return Array(5).fill(0).map(function(t,e){return new jc(o[n].points.get(0,e)*(p[r].width+1)+p[r].left,o[n].points.get(0,e+5)*(p[r].height+1)+p[r].top)})})),o.forEach(function(t){t.regions.dispose(),t.scores.dispose(),t.points.dispose()}),[2,{boxes:p,scores:f,points:d}]}})})}var pp=function(t){function e(){return t.call(this,"Mtcnn")||this}return Wc(e,t),e.prototype.forwardInput=function(E,S){return void 0===S&&(S={}),Vc(this,void 0,void 0,function(){var e,n,r,o,i,a,s,u,c,l,h,p,f,d,m,v,g,y,x,b,w;return Gc(this,function(t){switch(t.label){case 0:if(!(e=this.params))throw new Error("Mtcnn - load model before inference");if(!(n=E.canvases[0]))throw new Error("Mtcnn - inputCanvas is not defined, note that passing tensors into Mtcnn.forwardInput is not supported yet.");return r={},o=Date.now(),i=bt(function(){return t=$o(Xo(n)).toFloat(),bt(function(){return ci(pi(t,3).reverse(),3)});var t}),a=function(t){return i.dispose(),r.total=Date.now()-o,t},s=i.shape.slice(1),u=s[0],c=s[1],l=new Bh(S),h=l.minFaceSize,p=l.scaleFactor,f=l.maxNumScales,d=l.scoreThresholds,m=l.scaleSteps,v=(m||function(t,e,n){for(var r=n[0],o=n[1],i=tp/t,a=[],s=Math.min(r,o)*i,u=0;12<=s;)a.push(i*Math.pow(e,u)),s*=e,u+=1;return a}(h,p,[u,c])).filter(function(t){var e=rp(t,[u,c]);return Math.min(e.width,e.height)>tp}).slice(0,f),r.scales=v,r.pyramid=v.map(function(t){return rp(t,[u,c])}),g=Date.now(),[4,up(i,v,d[0],e.pnet,r)];case 1:return y=t.sent(),r.total_stage1=Date.now()-g,y.boxes.length?(r.stage2_numInputBoxes=y.boxes.length,g=Date.now(),[4,lp(n,y.boxes,d[1],e.rnet,r)]):[2,a({results:[],stats:r})];case 2:return x=t.sent(),r.total_stage2=Date.now()-g,x.boxes.length?(r.stage3_numInputBoxes=x.boxes.length,g=Date.now(),[4,hp(n,x.boxes,d[2],e.onet,r)]):[2,a({results:[],stats:r})];case 3:return b=t.sent(),r.total_stage3=Date.now()-g,w=b.boxes.map(function(e,t){return new Kl(new $l(b.scores[t],new pl(e.left/c,e.top/u,e.width/c,e.height/u),{height:u,width:c}),new Yl(b.points[t].map(function(t){return t.sub(new jc(e.left,e.top)).div(new jc(e.width,e.height))}),{width:e.width,height:e.height}))}),[2,a({results:w,stats:r})]}})})},e.prototype.forward=function(n,r){return void 0===r&&(r={}),Vc(this,void 0,void 0,function(){var e;return Gc(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,Wl(n)];case 1:return[4,e.apply(this,[t.sent(),r])];case 2:return[2,t.sent().results]}})})},e.prototype.forwardWithStats=function(n,r){return void 0===r&&(r={}),Vc(this,void 0,void 0,function(){var e;return Gc(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,Wl(n)];case 1:return[2,e.apply(this,[t.sent(),r])]}})})},e.prototype.getDefaultModelName=function(){return"mtcnn_model"},e.prototype.extractParamsFromWeigthMap=function(t){return np(t)},e.prototype.extractParams=function(t){return function(t){var e=ml(t),n=e.extractWeights,r=e.getRemainingWeights,o=[],i=ep(n,o),a=i.extractPNetParams,s=i.extractRNetParams,u=i.extractONetParams,c=a(),l=s(),h=u();if(0!==r().length)throw new Error("weights remaing after extract: "+r().length);return{params:{pnet:c,rnet:l,onet:h},paramMappings:o}}(t)},e}(Hl),fp=[new jc(1.603231,2.094468),new jc(6.041143,7.080126),new jc(2.882459,3.518061),new jc(4.266906,5.178857),new jc(9.041765,10.66308)],dp=[117.001,114.697,97.404],mp=function(e){function t(){var t={withSeparableConvs:!0,iouThreshold:.4,classes:["face"],anchors:fp,meanRgb:dp,isFirstLayerConv2d:!0,filterSizes:[3,16,32,64,128,256,512]};return e.call(this,t)||this}return Wc(t,e),Object.defineProperty(t.prototype,"anchors",{get:function(){return this.config.anchors},enumerable:!0,configurable:!0}),t.prototype.locateFaces=function(e,n){return Vc(this,void 0,void 0,function(){return Gc(this,function(t){switch(t.label){case 0:return[4,this.detect(e,n)];case 1:return[2,t.sent().map(function(t){return new $l(t.score,t.relativeBox,{width:t.imageWidth,height:t.imageHeight})})]}})})},t.prototype.getDefaultModelName=function(){return"tiny_face_detector_model"},t.prototype.extractParamsFromWeigthMap=function(t){return e.prototype.extractParamsFromWeigthMap.call(this,t)},t}(xh),vp=[new jc(.738768,.874946),new jc(2.42204,2.65704),new jc(4.30971,7.04493),new jc(10.246,4.59428),new jc(12.6868,11.8741)],gp=[new jc(1.603231,2.094468),new jc(6.041143,7.080126),new jc(2.882459,3.518061),new jc(4.266906,5.178857),new jc(9.041765,10.66308)],yp=[117.001,114.697,97.404],xp=function(n){function t(t){void 0===t&&(t=!0);var e=Object.assign({},{withSeparableConvs:t,iouThreshold:.4,classes:["face"]},t?{anchors:gp,meanRgb:yp}:{anchors:vp,withClassScores:!0});return n.call(this,e)||this}return Wc(t,n),Object.defineProperty(t.prototype,"withSeparableConvs",{get:function(){return this.config.withSeparableConvs},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"anchors",{get:function(){return this.config.anchors},enumerable:!0,configurable:!0}),t.prototype.locateFaces=function(e,n){return Vc(this,void 0,void 0,function(){return Gc(this,function(t){switch(t.label){case 0:return[4,this.detect(e,n)];case 1:return[2,t.sent().map(function(t){return new $l(t.score,t.relativeBox,{width:t.imageWidth,height:t.imageHeight})})]}})})},t.prototype.getDefaultModelName=function(){return this.withSeparableConvs?"tiny_yolov2_separable_conv_model":"tiny_yolov2_model"},t.prototype.extractParamsFromWeigthMap=function(t){return n.prototype.extractParamsFromWeigthMap.call(this,t)},t}(xh),bp={ssdMobilenetv1:new Kh,tinyFaceDetector:new mp,tinyYolov2:new xp,mtcnn:new pp,faceLandmark68Net:new Rh,faceLandmark68TinyNet:new kh,faceRecognitionNet:new Lh},wp=function(t,e){return bp.ssdMobilenetv1.locateFaces(t,e)},Ep=function(t){return bp.faceLandmark68Net.detectLandmarks(t)},Sp=function(t){return bp.ssdMobilenetv1.load(t)},_p=Sp,Cp=wp,Rp=Ep,Tp=function(r){function t(t,e){var n=r.call(this)||this;return n.detectFaceLandmarksTask=t,n.input=e,n}return Wc(t,r),t}(Jh),kp=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return Wc(e,t),e.prototype.run=function(){return Vc(this,void 0,void 0,function(){var e,n,i,r,o,a=this;return Gc(this,function(t){switch(t.label){case 0:return[4,this.detectFaceLandmarksTask];case 1:return e=t.sent(),n=e.map(function(t){return t.alignedRect}),this.input instanceof Y?[4,rh(this.input,n)]:[3,3];case 2:return r=t.sent(),[3,5];case 3:return[4,nh(this.input,n)];case 4:r=t.sent(),t.label=5;case 5:return i=r,[4,Promise.all(e.map(function(t,n){var r=t.detection,o=t.landmarks;return Vc(a,void 0,void 0,function(){var e;return Gc(this,function(t){switch(t.label){case 0:return[4,bp.faceRecognitionNet.computeFaceDescriptor(i[n])];case 1:return e=t.sent(),[2,new Zl(r,o,e)]}})})}))];case 6:return o=t.sent(),i.forEach(function(t){return t instanceof Y&&t.dispose()}),[2,o]}})})},e}(Tp),Ip=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return Wc(e,t),e.prototype.run=function(){return Vc(this,void 0,void 0,function(){var e,n,r,o,i,a,s;return Gc(this,function(t){switch(t.label){case 0:return[4,this.detectFaceLandmarksTask];case 1:return(e=t.sent())?(n=e.detection,r=e.landmarks,o=e.alignedRect,this.input instanceof Y?[4,rh(this.input,[o])]:[3,3]):[2];case 2:return a=t.sent(),[3,5];case 3:return[4,nh(this.input,[o])];case 4:a=t.sent(),t.label=5;case 5:return i=a,[4,bp.faceRecognitionNet.computeFaceDescriptor(i[0])];case 6:return s=t.sent(),i.forEach(function(t){return t instanceof Y&&t.dispose()}),[2,new Zl(n,r,s)]}})})},e}(Tp),Dp=function(o){function t(t,e,n){var r=o.call(this)||this;return r.detectFacesTask=t,r.input=e,r.useTinyLandmarkNet=n,r}return Wc(t,o),Object.defineProperty(t.prototype,"landmarkNet",{get:function(){return this.useTinyLandmarkNet?bp.faceLandmark68TinyNet:bp.faceLandmark68Net},enumerable:!0,configurable:!0}),t}(Jh),Np=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return Wc(e,t),e.prototype.run=function(){return Vc(this,void 0,void 0,function(){var e,n,r,o,i=this;return Gc(this,function(t){switch(t.label){case 0:return[4,this.detectFacesTask];case 1:return e=t.sent(),this.input instanceof Y?[4,rh(this.input,e)]:[3,3];case 2:return r=t.sent(),[3,5];case 3:return[4,nh(this.input,e)];case 4:r=t.sent(),t.label=5;case 5:return n=r,[4,Promise.all(n.map(function(t){return i.landmarkNet.detectLandmarks(t)}))];case 6:return o=t.sent(),n.forEach(function(t){return t instanceof Y&&t.dispose()}),[2,e.map(function(t,e){return new Kl(t,o[e])})]}})})},e.prototype.withFaceDescriptors=function(){return new kp(this,this.input)},e}(Dp),Ap=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return Wc(e,t),e.prototype.run=function(){return Vc(this,void 0,void 0,function(){var e,n,r,o;return Gc(this,function(t){switch(t.label){case 0:return[4,this.detectFacesTask];case 1:return(e=t.sent())?this.input instanceof Y?[4,rh(this.input,[e])]:[3,3]:[2];case 2:return r=t.sent(),[3,5];case 3:return[4,nh(this.input,[e])];case 4:r=t.sent(),t.label=5;case 5:return n=r,[4,this.landmarkNet.detectLandmarks(n[0])];case 6:return o=t.sent(),n.forEach(function(t){return t instanceof Y&&t.dispose()}),[2,new Kl(e,o)]}})})},e.prototype.withFaceDescriptor=function(){return new Ip(this,this.input)},e}(Dp),Mp=function(r){function t(t,e){void 0===e&&(e=new $h);var n=r.call(this)||this;return n.input=t,n.options=e,n}return Wc(t,r),t}(Jh),Op=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return Wc(e,t),e.prototype.run=function(){return Vc(this,void 0,void 0,function(){var e,n,r,o;return Gc(this,function(t){switch(t.label){case 0:return n=(e=this).input,(r=e.options)instanceof Bh?[4,bp.mtcnn.forward(n,r)]:[3,2];case 1:return[2,t.sent().map(function(t){return t.faceDetection})];case 2:if(!(o=r instanceof Qh?function(t){return bp.tinyFaceDetector.locateFaces(t,r)}:r instanceof $h?function(t){return bp.ssdMobilenetv1.locateFaces(t,r)}:r instanceof yh?function(t){return bp.tinyYolov2.locateFaces(t,r)}:null))throw new Error("detectFaces - expected options to be instance of TinyFaceDetectorOptions | SsdMobilenetv1Options | MtcnnOptions | TinyYolov2Options");return[2,o(n)]}})})},e.prototype.withFaceLandmarks=function(t){return void 0===t&&(t=!1),new Np(this,this.input,t)},e}(Mp),Pp=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return Wc(e,t),e.prototype.run=function(){return Vc(this,void 0,void 0,function(){var e,n;return Gc(this,function(t){switch(t.label){case 0:return[4,new Op(this.input,this.options)];case 1:return e=t.sent(),n=e[0],e.forEach(function(t){t.score>n.score&&(n=t)}),[2,n]}})})},e.prototype.withFaceLandmarks=function(t){return void 0===t&&(t=!1),new Ap(this,this.input,t)},e}(Mp);function Fp(t,e){return void 0===e&&(e=new $h),new Op(t,e)}function Lp(e,n){return Vc(this,void 0,void 0,function(){return Gc(this,function(t){switch(t.label){case 0:return[4,Fp(e,new $h(n?{minConfidence:n}:{})).withFaceLandmarks().withFaceDescriptors()];case 1:return[2,t.sent()]}})})}var Bp=Lp;function zp(t,e){if(t.length!==e.length)throw new Error("euclideanDistance: arr1.length !== arr2.length");var n=Array.from(t),r=Array.from(e);return Math.sqrt(n.map(function(t,e){return t-r[e]}).reduce(function(t,e){return t+Math.pow(e,2)},0))}var Wp=function(){function t(t,e){void 0===e&&(e=.6),this._distanceThreshold=e;var n=Array.isArray(t)?t:[t];if(!n.length)throw new Error("FaceRecognizer.constructor - expected atleast one input");var r=1,o=function(){return"person "+r++};this._labeledDescriptors=n.map(function(t){if(t instanceof th)return t;if(t instanceof Zl)return new th(o(),[t.descriptor]);if(t instanceof Float32Array)return new th(o(),[t]);throw new Error("FaceRecognizer.constructor - expected inputs to be of type LabeledFaceDescriptors | FullFaceDescription | Float32Array | Array<LabeledFaceDescriptors | FullFaceDescription | Float32Array>")})}return Object.defineProperty(t.prototype,"labeledDescriptors",{get:function(){return this._labeledDescriptors},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"distanceThreshold",{get:function(){return this._distanceThreshold},enumerable:!0,configurable:!0}),t.prototype.computeMeanDistance=function(e,t){return t.map(function(t){return zp(t,e)}).reduce(function(t,e){return t+e},0)/(t.length||1)},t.prototype.matchDescriptor=function(r){var o=this;return this.labeledDescriptors.map(function(t){var e=t.descriptors,n=t.label;return new Jl(n,o.computeMeanDistance(r,e))}).reduce(function(t,e){return t.distance<e.distance?t:e})},t.prototype.findBestMatch=function(t){var e=this.matchDescriptor(t);return e.distance<this.distanceThreshold?e:new Jl("unknown",e.distance)},t}();t.tf=Bc,t.BoundingBox=sl,t.Box=al,t.BoxWithText=ul,t.Dimensions=qc,t.LabeledBox=cl,t.ObjectDetection=ll,t.Point=jc,t.PredictedBox=hl,t.Rect=pl,t.disposeUnusedWeightTensors=fl,t.extractWeightEntryFactory=dl,t.extractWeightsFactory=ml,t.getModelUris=vl,t.awaitMediaLoaded=El,t.bufferToImage=Sl,t.createCanvas=Rl,t.createCanvasFromMedia=Tl,t.drawBox=Il,t.drawDetection=function(t,e,l){var n=bl.getEnv().Canvas,h=Nl(t);if(!(h instanceof n))throw new Error("drawDetection - expected canvas to be of type: HTMLCanvasElement");(Array.isArray(e)?e:[e]).forEach(function(t){var e=t instanceof ll?t.box:t,n=e.x,r=e.y,o=e.width,i=e.height,a=kl(l),s=_l(h);Il(s,n,r,o,i,a);var u=a.withScore,c=t instanceof ul?t.text:u&&t instanceof hl?""+Jc(t.score):t instanceof ll?t.className+(u?" ("+Jc(t.score)+")":""):"";c&&Dl(s,n,r+i,c,a)})},t.drawText=Dl,t.fetchImage=function(r){return Vc(this,void 0,void 0,function(){var e,n;return Gc(this,function(t){switch(t.label){case 0:return[4,Al(r)];case 1:return[4,(e=t.sent()).blob()];case 2:if(!(n=t.sent()).type.startsWith("image/"))throw new Error("fetchImage - expected blob type to be of type image/*, instead have: "+n.type+", for url: "+e.url);return[2,Sl(n)]}})})},t.fetchJson=Ml,t.fetchNetWeights=function(n){return Vc(this,void 0,void 0,function(){var e;return Gc(this,function(t){switch(t.label){case 0:return e=Float32Array.bind,[4,Al(n)];case 1:return[4,t.sent().arrayBuffer()];case 2:return[2,new(e.apply(Float32Array,[void 0,t.sent()]))]}})})},t.fetchOrThrow=Al,t.getContext2dOrThrow=_l,t.getDefaultDrawOptions=kl,t.getMediaDimensions=Cl,t.imageTensorToCanvas=Ol,t.imageToSquare=Pl,t.isMediaElement=Fl,t.isMediaLoaded=wl,t.loadWeightMap=Ll,t.NetInput=zl,t.resolveInput=Nl,t.toNetInput=Wl,t.env=bl,t.sigmoid=ql,t.inverseSigmoid=function(t){return Math.log(t/(1-t))},t.iou=Ul,t.nonMaxSuppression=Vl,t.normalize=Gl,t.padToSquare=Bl,t.shuffleArray=function(t){for(var e=t.slice(),n=e.length-1;0<n;n--){var r=Math.floor(Math.random()*(n+1)),o=e[n];e[n]=e[r],e[r]=o}return e},t.isTensor=Hc,t.isTensor1D=function(t){return Hc(t,1)},t.isTensor2D=$c,t.isTensor3D=Kc,t.isTensor4D=Xc,t.isFloat=Yc,t.isEven=Qc,t.round=Jc,t.isDimensions=Zc,t.computeReshapedDimensions=tl,t.getCenterPoint=el,t.range=nl,t.isValidNumber=rl,t.isValidProbablitiy=ol,t.NeuralNetwork=Hl,t.FaceDetection=$l,t.FaceDetectionWithLandmarks=Kl,t.FaceLandmarks=Xl,t.FaceLandmarks5=Yl,t.FaceLandmarks68=Ql,t.FaceMatch=Jl,t.FullFaceDescription=Zl,t.LabeledFaceDescriptors=th,t.drawContour=eh,t.drawLandmarks=function(t,e,n){var r=Nl(t);if(!(r instanceof bl.getEnv().Canvas))throw new Error("drawLandmarks - expected canvas to be of type: HTMLCanvasElement");var o=Object.assign(kl(n),n||{}),i=Object.assign({drawLines:!1},n||{}).drawLines,a=_l(r),s=o.lineWidth,u=o.color,c=void 0===u?"blue":u;(Array.isArray(e)?e:[e]).forEach(function(t){if(i&&t instanceof Ql)return a.strokeStyle=c,a.lineWidth=s,eh(a,t.getJawOutline()),eh(a,t.getLeftEyeBrow()),eh(a,t.getRightEyeBrow()),eh(a,t.getNose()),eh(a,t.getLeftEye(),!0),eh(a,t.getRightEye(),!0),void eh(a,t.getMouth(),!0);var e=s/2;a.fillStyle=c,t.positions.forEach(function(t){return a.fillRect(t.x-e,t.y-e,s,s)})})},t.extractFaces=nh,t.extractFaceTensors=rh,t.FaceLandmarkNet=Ih,t.createFaceLandmarkNet=function(t){var e=new Ih;return e.extractWeights(t),e},t.FaceLandmark68Net=Rh,t.FaceLandmark68TinyNet=kh,t.createFaceRecognitionNet=function(t){var e=new Lh;return e.extractWeights(t),e},t.FaceRecognitionNet=Lh,t.allFacesSsdMobilenetv1=Lp,t.allFacesTinyYolov2=function(e,n){return void 0===n&&(n={}),Vc(this,void 0,void 0,function(){return Gc(this,function(t){switch(t.label){case 0:return[4,Fp(e,new yh(n)).withFaceLandmarks().withFaceDescriptors()];case 1:return[2,t.sent()]}})})},t.allFacesMtcnn=function(e,n){return void 0===n&&(n={}),Vc(this,void 0,void 0,function(){return Gc(this,function(t){switch(t.label){case 0:return[4,Fp(e,new Bh(n)).withFaceLandmarks().withFaceDescriptors()];case 1:return[2,t.sent()]}})})},t.allFaces=Bp,t.ComposableTask=Jh,t.ComputeFaceDescriptorsTaskBase=Tp,t.ComputeAllFaceDescriptorsTask=kp,t.ComputeSingleFaceDescriptorTask=Ip,t.detectSingleFace=function(t,e){return void 0===e&&(e=new $h),new Pp(t,e)},t.detectAllFaces=Fp,t.DetectFacesTaskBase=Mp,t.DetectAllFacesTask=Op,t.DetectSingleFaceTask=Pp,t.DetectFaceLandmarksTaskBase=Dp,t.DetectAllFaceLandmarksTask=Np,t.DetectSingleFaceLandmarksTask=Ap,t.FaceMatcher=Wp,t.nets=bp,t.ssdMobilenetv1=wp,t.tinyFaceDetector=function(t,e){return bp.tinyFaceDetector.locateFaces(t,e)},t.tinyYolov2=function(t,e){return bp.tinyYolov2.locateFaces(t,e)},t.mtcnn=function(t,e){return bp.mtcnn.forward(t,e)},t.detectFaceLandmarks=Ep,t.detectFaceLandmarksTiny=function(t){return bp.faceLandmark68TinyNet.detectLandmarks(t)},t.computeFaceDescriptor=function(t){return bp.faceRecognitionNet.computeFaceDescriptor(t)},t.loadSsdMobilenetv1Model=Sp,t.loadTinyFaceDetectorModel=function(t){return bp.tinyFaceDetector.load(t)},t.loadMtcnnModel=function(t){return bp.mtcnn.load(t)},t.loadTinyYolov2Model=function(t){return bp.tinyYolov2.load(t)},t.loadFaceLandmarkModel=function(t){return bp.faceLandmark68Net.load(t)},t.loadFaceLandmarkTinyModel=function(t){return bp.faceLandmark68TinyNet.load(t)},t.loadFaceRecognitionModel=function(t){return bp.faceRecognitionNet.load(t)},t.loadFaceDetectionModel=_p,t.locateFaces=Cp,t.detectLandmarks=Rp,t.createMtcnn=function(t){var e=new pp;return e.extractWeights(t),e},t.Mtcnn=pp,t.MtcnnOptions=Bh,t.createSsdMobilenetv1=Xh,t.createFaceDetectionNet=function(t){return Xh(t)},t.FaceDetectionNet=Yh,t.SsdMobilenetv1=Kh,t.SsdMobilenetv1Options=$h,t.createTinyFaceDetector=function(t){var e=new mp;return e.extractWeights(t),e},t.TinyFaceDetector=mp,t.TinyFaceDetectorOptions=Qh,t.createTinyYolov2=function(t,e){void 0===e&&(e=!0);var n=new xp(e);return n.extractWeights(t),n},t.TinyYolov2=xp,t.euclideanDistance=zp,Object.defineProperty(t,"__esModule",{value:!0})});