face-api.min.js

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4:return n++,[3,1];case 5:throw new Error("Could not initialize any backends, all backend initializations failed.")}})})},Object.defineProperty(Ht.prototype,"backend",{get:function(){if(null!=this.pendingBackendInit)throw new Error("Backend '"+this.backendName+"' has not yet been initialized. Make sure to await tf.ready() before calling other methods");if(null==this.backendInstance){var t=this.initializeBackendsAndReturnBest(),e=t.name;if(t.asyncInit)throw new Error("The highest priority backend '"+e+"' has not yet been initialized. Make sure to await tf.ready() before calling other methods");this.setBackend(e)}return this.backendInstance},enumerable:!0,configurable:!0}),Ht.prototype.backendNames=function(){return Object.keys(this.registryFactory)},Ht.prototype.findBackend=function(t){if(!(t in this.registry)){if(!(t in this.registryFactory))return null;if(this.initializeBackend(t).asyncInit)return null}return this.registry[t]},Ht.prototype.findBackendFactory=function(t){return t in this.registryFactory?this.registryFactory[t].factory:null},Ht.prototype.registerBackend=function(t,e,n){return void 0===n&&(n=1),t in this.registryFactory?(console.warn(t+" backend was already registered. Reusing existing backend factory."),!1):(this.registryFactory[t]={factory:e,priority:n},!0)},Ht.prototype.setBackend=function(o){return y(this,void 0,void 0,function(){var e,n,r;return I(this,function(t){switch(t.label){case 0:if(null==this.registryFactory[o])throw new Error("Backend name '"+o+"' not found in registry");return this.backendName=o,null!=this.registry[o]?[3,4]:(this.backendInstance=null,e=this.initializeBackend(o),n=e.success,e.asyncInit?[4,n]:[3,2]);case 1:return r=t.sent(),[3,3];case 2:r=n,t.label=3;case 3:if(!r)return[2,!1];t.label=4;case 4:return this.backendInstance=this.registry[o],this.profiler=new it(this.backendInstance),[2,!0]}})})},Ht.prototype.initializeBackend=function(e){var n=this,t=this.registryFactory[e];if(null==t)throw new Error("Cannot initialize backend "+e+", no registration found.");try{var r=t.factory();if(Promise.resolve(r)!==r)return this.registry[e]=r,{success:!0,asyncInit:!1};var o=++this.pendingBackendInitId,i=r.then(function(t){return!(o<n.pendingBackendInitId||(n.registry[e]=t,n.pendingBackendInit=null))}).catch(function(t){return!(o<n.pendingBackendInitId||(n.pendingBackendInit=null,console.warn("Initialization of backend "+e+" failed"),console.warn(t.stack||t.message),1))});return{success:this.pendingBackendInit=i,asyncInit:!0}}catch(n){return console.warn("Initialization of backend "+e+" failed"),console.warn(n.stack||n.message),{success:!1,asyncInit:!1}}},Ht.prototype.removeBackend=function(t){if(!(t in this.registryFactory))throw new Error(t+" backend not found in registry");this.backendName===t&&null!=this.pendingBackendInit&&this.pendingBackendInitId++,t in this.registry&&(this.registry[t].dispose(),delete this.registry[t]),delete this.registryFactory[t],this.backendName===t&&(this.pendingBackendInit=null,this.backendName=null,this.backendInstance=null)},Ht.prototype.getSortedBackends=function(){var n=this;if(0===Object.keys(this.registryFactory).length)throw new Error("No backend found in registry.");return Object.keys(this.registryFactory).sort(function(t,e){return n.registryFactory[e].priority-n.registryFactory[t].priority})},Ht.prototype.initializeBackendsAndReturnBest=function(){for(var t=this.getSortedBackends(),e=0;e<t.length;e++){var n=t[e],r=this.initializeBackend(n),o=r.success,i=r.asyncInit;if(i||o)return{name:n,asyncInit:i}}throw new Error("Could not initialize any backends, all backend initializations failed.")},Ht.prototype.moveData=function(t,e){this.write(t,e,this.readSync(e))},Ht.prototype.tidy=function(t,e){var n,r=this,o=null;if(null==e){if("function"!=typeof t)throw new Error("Please provide a function to tidy()");e=t}else{if("string"!=typeof t&&!(t instanceof String))throw new Error("When calling with two arguments, the first argument to tidy() must be a string");if("function"!=typeof e)throw new Error("When calling with two arguments, the 2nd argument to tidy() must be a function");o=t}return this.scopedRun(function(){return r.startScope(o)},function(){return r.endScope(n)},function(){return(n=e())instanceof Promise&&console.error("Cannot return a Promise inside of tidy."),n})},Ht.prototype.scopedRun=function(t,e,n){t();try{var r=n();return e(),r}catch(t){throw e(),t}},Ht.prototype.nextTensorId=function(){return Ht.nextTensorId++},Ht.prototype.nextVariableId=function(){return Ht.nextVariableId++},Ht.prototype.clone=function(t){var e=yt.make(t.shape,{dataId:t.dataId},t.dtype);return this.addTapeNode([t],e,function(t){return[t.toFloat()]}),e},Ht.prototype.runKernel=function(t,e,n){function r(t){s&&(a=t.map(function(t){return i.keep(i.clone(t))}))}var o,i=this,a=[],s=this.isTapeOn(),u=null!=this.state.activeScope?this.state.activeScope.name:"",c=this.state.numBytes,l=this.state.numTensors;if(this.scopedRun(function(){return i.state.kernelDepth++},function(){return i.state.kernelDepth--},function(){o=i.ENV.getBool("DEBUG")?i.profiler.profileKernel(u,e,function(){return t(i.backend,r)}):t(i.backend,r)}),s){var h={id:this.state.nextTapeNodeId++,name:u,inputs:e,outputs:Array.isArray(o)?o:[o],saved:a};null!=n&&(h.gradient=function(t){return n(t,a)}),this.state.activeTape.push(h)}return this.state.profiling&&this.state.activeProfile.kernels.push({name:u,bytesAdded:this.state.numBytes-c,totalBytesSnapshot:this.state.numBytes,tensorsAdded:this.state.numTensors-l,totalTensorsSnapshot:this.state.numTensors,inputShapes:Object.keys(e).map(function(t){return e[t].shape}),outputShape:Array.isArray(o)?o.map(function(t){return t.shape}):o.shape}),o},Ht.prototype.registerTensor=function(t,e){var n=this.state.tensorInfo.has(t.dataId)?this.state.tensorInfo.get(t.dataId).refCount:0;if(this.state.numTensors++,"string"===t.dtype&&this.state.numStringTensors++,0===n){this.state.numDataBuffers++;var r=0;"complex64"!==t.dtype&&"string"!==t.dtype&&(r=t.size*U(t.dtype)),this.state.tensorInfo.set(t.dataId,{backend:null!=e?e:this.backend,dtype:t.dtype,shape:t.shape,bytes:r,refCount:0}),this.state.numBytes+=r,null!=e?e.register(t.dataId,t.shape,t.dtype):this.backend.register(t.dataId,t.shape,t.dtype)}this.state.tensorInfo.get(t.dataId).refCount++,t instanceof wt||this.track(t)},Ht.prototype.registerVariable=function(t){if(null!=this.state.registeredVariables[t.name])throw new Error("Variable with name "+t.name+" was already registered");this.state.registeredVariables[t.name]=t},Ht.prototype.disposeTensor=function(t){if(this.state.tensorInfo.has(t.dataId)){this.state.numTensors--,"string"===t.dtype&&this.state.numStringTensors--;var e=this.state.tensorInfo.get(t.dataId);e.refCount<=1?("complex64"!==t.dtype&&(this.state.numBytes-=e.bytes),this.state.numDataBuffers--,e.backend.disposeData(t.dataId),this.state.tensorInfo.delete(t.dataId)):this.state.tensorInfo.get(t.dataId).refCount--}},Ht.prototype.disposeVariables=function(){for(var t in this.state.registeredVariables){var e=this.state.registeredVariables[t];this.disposeVariable(e)}},Ht.prototype.disposeVariable=function(t){this.disposeTensor(t),null!=this.state.registeredVariables[t.name]&&delete this.state.registeredVariables[t.name]},Ht.prototype.memory=function(){var t=this.backend.memory();return t.numTensors=this.state.numTensors,t.numDataBuffers=this.state.numDataBuffers,t.numBytes=this.state.numBytes,0<this.state.numStringTensors&&(t.unreliable=!0,null==t.reasons&&(t.reasons=[]),t.reasons.push("Memory usage by string tensors is approximate (2 bytes per character)")),t},Ht.prototype.profile=function(r){return y(this,void 0,void 0,function(){var e,n;return I(this,function(t){return this.state.profiling=!0,e=this.state.numBytes,n=this.state.numTensors,this.state.activeProfile.kernels=[],this.state.activeProfile.result=r(),this.state.profiling=!1,this.state.activeProfile.peakBytes=Math.max.apply(Math,this.state.activeProfile.kernels.map(function(t){return t.totalBytesSnapshot})),this.state.activeProfile.newBytes=this.state.numBytes-e,this.state.activeProfile.newTensors=this.state.numTensors-n,[2,this.state.activeProfile]})})},Ht.prototype.isTapeOn=function(){return 0<this.state.gradientDepth&&0===this.state.kernelDepth},Ht.prototype.addTapeNode=function(t,e,r){var n={};t.forEach(function(t,e){n[e]=t});var o={id:this.state.nextTapeNodeId++,name:this.state.activeScope.name,inputs:n,outputs:[e],gradient:function(t){var e=r(t),n={};return e.forEach(function(t,e){n[e]=function(){return t}}),n}};this.state.activeTape.push(o)},Ht.prototype.keep=function(t){return t.kept=!0,t},Ht.prototype.startTape=function(){0===this.state.gradientDepth&&(this.state.activeTape=[]),this.state.gradientDepth++},Ht.prototype.endTape=function(){this.state.gradientDepth--},Ht.prototype.startScope=function(t){var e={track:[],name:"unnamed scope",id:this.state.nextScopeId++};t&&(e.name=t),this.state.scopeStack.push(e),this.state.activeScope=e},Ht.prototype.endScope=function(t){for(var e=this,n=Wt(t),r=new Set(n.map(function(t){return t.id})),o=0;o<this.state.activeScope.track.length;o++){var i=this.state.activeScope.track[o];i.kept||r.has(i.id)||i.dispose()}var a=this.state.scopeStack.pop();this.state.activeScope=0===this.state.scopeStack.length?null:this.state.scopeStack[this.state.scopeStack.length-1],n.forEach(function(t){t.kept||t.scopeId!==a.id||e.track(t)})},Ht.prototype.gradients=function(t,o,i,e){var u=this;if(void 0===e&&(e=!1),O(0<o.length,function(){return"gradients() received an empty list of xs."}),null!=i&&"float32"!==i.dtype)throw new Error("dy must have 'float32' dtype, but has '"+i.dtype+"'");var a=this.scopedRun(function(){return u.startTape()},function(){return u.endTape()},function(){return u.tidy("forward",t)});O(a instanceof yt,function(){return"The result y returned by f() must be a tensor."});var s=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 v={};for(var s in d.inputs){var m=d.inputs[s];r[m.id]&&(v[s]=m)}var g=Object.assign({},d);g.inputs=v,g.outputs=d.outputs,f.push(g)}}return f}(this.state.activeTape,o,a);if(!e&&0===s.length&&0<o.length)throw new Error("Cannot compute gradient of y=f(x) with respect to x. Make sure that the f you passed encloses all operations that lead from x to y.");return this.tidy("backward",function(){var t,e,n={};n[a.id]=null==i?(e=Q(L(t=a.shape),"float32"),yt.make(t,{values:e})):i,function(a,s){for(var t=function(t){var o=s[t],r=[];if(o.outputs.forEach(function(t){var e=a[t.id];if(null!=e)r.push(e);else{var n=yt.make(t.shape,{values:Z(t.size,t.dtype)},t.dtype);r.push(n)}}),null==o.gradient)throw new Error("Cannot compute gradient: gradient function not found for "+o.name+".");function e(t){if(!(t in i))throw new Error("Cannot backprop through input "+t+". Available gradients found: "+Object.keys(i)+".");var e=function(t){return u.tidy(t)}(function(){return i[t]()});if("float32"!==e.dtype)throw new Error("Error in gradient for op "+o.name+". The gradient of input "+t+" must have 'float32' dtype, but has '"+e.dtype+"'");var n=o.inputs[t];if(!k(e.shape,n.shape))throw new Error("Error in gradient for op "+o.name+". The gradient of input '"+t+"' has shape '"+e.shape+"', which does not match the shape of the input '"+n.shape+"'");if(null==a[n.id])a[n.id]=e;else{var r=a[n.id];a[n.id]=r.add(e),r.dispose()}}var i=o.gradient(1===o.outputs.length?r[0]:r);for(var n in o.inputs)e(n)},e=s.length-1;0<=e;e--)t(e)}(n,s);var r=o.map(function(t){return n[t.id]});return 0===u.state.gradientDepth&&(u.state.activeTape.forEach(function(t){for(var e in t.saved)t.saved[e].dispose()}),u.state.activeTape=null),{value:a,grads:r}})},Ht.prototype.customGrad=function(r){var e=this;return O($(r),function(){return"The f passed in customGrad(f) must be a function."}),function(){for(var i,a=[],t=0;t<arguments.length;t++)a[t]=arguments[t];O(a.every(function(t){return t instanceof yt}),function(){return"The args passed in customGrad(f)(x1, x2,...) must all be tensors"});var n={};return a.forEach(function(t,e){n[e]=t}),e.runKernel(function(t,e){return O((i=r.apply(void 0,a.concat([e]))).value instanceof yt,function(){return"The function f passed in customGrad(f) must return an object where `obj.value` is a tensor"}),O($(i.gradFunc),function(){return"The function f passed in customGrad(f) must return an object where `obj.gradFunc` is a function."}),i.value},n,function(t,e){var n=i.gradFunc(t,e),r=Array.isArray(n)?n:[n];O(r.length===a.length,function(){return"The function f passed in customGrad(f) must return an object where `obj.gradFunc` is a function that returns the same number of tensors as inputs passed to f(...)."}),O(r.every(function(t){return t instanceof yt}),function(){return"The function f passed in customGrad(f) must return an object where `obj.gradFunc` is a function that returns a list of only tensors."});var o={};return r.forEach(function(t,e){o[e]=function(){return t}}),o})}},Ht.prototype.write=function(t,e,n){var r=this.state.tensorInfo.get(e),o=r.backend;if(t=t||this.backend,"string"===r.dtype){var i=V(n);this.state.numBytes+=i-r.bytes,r.bytes=i}t!==o&&(o.disposeData(e),(r.backend=t).register(e,r.shape,r.dtype)),t.write(e,n)},Ht.prototype.readSync=function(t){return this.state.tensorInfo.get(t).backend.readSync(t)},Ht.prototype.read=function(t){return this.state.tensorInfo.get(t).backend.read(t)},Ht.prototype.fromPixels=function(t,e){return this.backend.fromPixels(t,e)},Ht.prototype.time=function(r){return y(this,void 0,void 0,function(){var e,n;return I(this,function(t){switch(t.label){case 0:return e=tt(),[4,this.backend.time(r)];case 1:return(n=t.sent()).wallMs=tt()-e,[2,n]}})})},Ht.prototype.track=function(t){return null!=this.state.activeScope&&(t.scopeId=this.state.activeScope.id,this.state.activeScope.track.push(t)),t},Object.defineProperty(Ht.prototype,"registeredVariables",{get:function(){return this.state.registeredVariables},enumerable:!0,configurable:!0}),Ht.prototype.reset=function(){for(var t in this.pendingBackendInitId++,this.state.dispose(),this.ENV.reset(),this.state=new Vt,this.registry)this.registry[t].dispose(),delete this.registry[t];this.backendName=null,this.backendInstance=null,this.pendingBackendInit=null},Ht.nextTensorId=0,Ht.nextVariableId=0,Ht);function Ht(t){this.ENV=t,this.registry={},this.registryFactory={},this.pendingBackendInitId=0,this.state=new Vt}function jt(){this.registeredVariables={},this.nextTapeNodeId=0,this.numBytes=0,this.numTensors=0,this.numStringTensors=0,this.numDataBuffers=0,this.gradientDepth=0,this.kernelDepth=0,this.scopeStack=[],this.nextScopeId=0,this.tensorInfo=new WeakMap,this.profiling=!1,this.activeProfile={newBytes:0,newTensors:0,peakBytes:0,kernels:[],result:null}}var qt=function(){var t=function(){if(null==zt){var t=void 0;if("undefined"!=typeof window)t=window;else if("undefined"!=typeof global)t=global;else if("undefined"!=typeof process)t=process;else{if("undefined"==typeof self)throw new Error("Could not find a global object");t=self}zt=t}return zt}();if(null==t._tfengine){var e=new n(t);t._tfengine=new Gt(e)}return s(t._tfengine.ENV),dt=function(){return t._tfengine},t._tfengine}();function $t(){return"undefined"!=typeof window&&null!=window.document||"undefined"!=typeof WorkerGlobalScope}_.registerFlag("DEBUG",function(){return!1},function(t){t&&console.warn("Debugging mode is ON. The output of every math call will be downloaded to CPU and checked for NaNs. This significantly impacts performance.")}),_.registerFlag("IS_BROWSER",function(){return $t()}),_.registerFlag("IS_NODE",function(){return"undefined"!=typeof process&&void 0!==process.versions&&void 0!==process.versions.node}),_.registerFlag("IS_CHROME",function(){return"undefined"!=typeof navigator&&null!=navigator&&null!=navigator.userAgent&&/Chrome/.test(navigator.userAgent)&&/Google Inc/.test(navigator.vendor)}),_.registerFlag("PROD",function(){return!1}),_.registerFlag("TENSORLIKE_CHECK_SHAPE_CONSISTENCY",function(){return _.getBool("DEBUG")}),_.registerFlag("DEPRECATION_WARNINGS_ENABLED",function(){return!0}),_.registerFlag("IS_TEST",function(){return!1});var Kt,Xt,Yt,Jt,Qt={},Zt={alpha:!1,antialias:!1,premultipliedAlpha:!1,preserveDrawingBuffer:!1,depth:!1,stencil:!1,failIfMajorPerformanceCaveat:!0};function te(t,e){Qt[t]=e}function ee(t){t in Qt||(Qt[t]=function(e){if(1!==e&&2!==e)throw new Error("Cannot get WebGL rendering context, WebGL is disabled.");var t=ne(e);return 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float "+r+"(int row, int col) {\n      vec2 uv = (vec2(col, row) + halfCR) / vec2("+a+".0, "+i+".0);\n      return sampleTexture("+n+", uv);\n    }\n  "}var s=N(e),u=s.newShape,c=s.keptDims,l=u;if(l.length<e.length){var h=Vo(t,l);return"\n      "+y(h)+"\n      float "+r+"(int row, int col) {\n        return "+r+"("+Go(["row","col"],c)+");\n      }\n    "}if(t.shapeInfo.isUniform)return"\n      float "+r+"(int row, int col) {\n        int index = round(dot(vec2(row, col), vec2("+e[1]+", 1)));\n        "+zo(t)+"\n      }\n    ";var p=o[0],f=o[1],d=Wo(n);return 1===f?"\n    float "+r+"(int row, int col) {\n      float index = dot(vec3(row, col, "+d+"), vec3("+e[1]+", 1, 1));\n      vec2 uv = vec2(0.5, (index + 0.5) / "+p+".0);\n      return sampleTexture("+n+", uv);\n    }\n  ":1===p?"\n    float "+r+"(int row, int col) {\n      float index = dot(vec3(row, col, "+d+"), vec3("+e[1]+", 1, 1));\n      vec2 uv = vec2((index + 0.5) / "+f+".0, 0.5);\n      return sampleTexture("+n+", uv);\n    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float texR = float(row);\n          float texC = dot(vec2(col, depth), vec2("+i+", 1));\n          vec2 uv = (vec2(texC, texR) + halfCR) /\n                     vec2("+f+".0, "+p+".0);\n          return sampleTexture("+n+", uv);\n        }\n      ";if(f===i&&null==d)return"\n    float "+r+"(int row, int col, int depth) {\n      float texR = dot(vec2(row, col), vec2("+e[1]+", 1));\n      float texC = float(depth);\n      vec2 uv = (vec2(texC, texR) + halfCR) / vec2("+f+".0, "+p+".0);\n      return sampleTexture("+n+", uv);\n    }\n  ";var v=Wo(n);return"\n      float "+r+"(int row, int col, int depth) {\n        // Explicitly use integer operations as dot() only works on floats.\n        int index = row * "+o+" + col * "+i+" + depth + "+v+";\n        vec2 uv = uvFromFlat("+p+", "+f+", index);\n        return sampleTexture("+n+", uv);\n      }\n  "}(t);case 4:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=e[3],i=e[2]*o,a=e[1]*i,s=N(e),u=s.newShape,c=s.keptDims;if(u.length<e.length){var l=Vo(t,u);return"\n      "+y(l)+"\n      float "+r+"(int row, int col, int depth, int depth2) {\n        return "+r+"("+Go(["row","col","depth","depth2"],c)+");\n      }\n    "}if(t.shapeInfo.isUniform)return"\n      float "+r+"(int row, int col, int depth, int depth2) {\n        int index = round(dot(vec4(row, col, depth, depth2),\n                          vec4("+a+", "+i+", "+o+", 1)));\n        "+zo(t)+"\n      }\n    ";var h=t.shapeInfo.flatOffset,p=t.shapeInfo.texShape,f=p[0],d=p[1];if(d===a&&null==h)return"\n      float "+r+"(int row, int col, int depth, int depth2) {\n        float texR = float(row);\n        float texC =\n            dot(vec3(col, depth, depth2),\n                vec3("+i+", "+o+", 1));\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                   vec2("+d+".0, "+f+".0);\n        return sampleTexture("+n+", uv);\n      }\n    ";if(d===o&&null==h)return"\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("+d+".0, "+f+".0);\n        return sampleTexture("+n+", uv);\n      }\n    ";var v=Wo(n);return"\n    float "+r+"(int row, int col, int depth, int depth2) {\n      // Explicitly use integer operations as dot() only works on floats.\n      int index = row * "+a+" + col * "+i+" +\n          depth * "+o+" + depth2;\n      vec2 uv = uvFromFlat("+f+", "+d+", index + "+v+");\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=N(e),c=u.newShape,l=u.keptDims;if(c.length<e.length){var h=Vo(t,c);return"\n      "+y(h)+"\n      float "+r+"(int row, int col, int depth, int depth2, int depth3) {\n        return "+r+"("+Go(["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        "+zo(t)+"\n      }\n    ";var p=t.shapeInfo.flatOffset,f=t.shapeInfo.texShape,d=f[0],v=f[1];if(v===s&&null==p)return"\n      float "+r+"(int row, int col, int depth, int depth2, int depth3) {\n        int texR = row;\n        float texC = dot(vec4(col, depth, depth2, depth3),\n                         vec4("+a+", "+i+", "+o+", 1));\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                   vec2("+v+".0, "+d+".0);\n        return sampleTexture("+n+", uv);\n      }\n    ";if(v===o&&null==p)return"\n      float "+r+"(int row, int col, int depth, int depth2, int depth3) {\n        float texR = dot(\n          vec4(row, col, depth, depth2),\n          vec4("+e[1]*e[2]*e[3]+",\n               "+e[2]*e[3]+", "+e[3]+", 1));\n        int texC = depth3;\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                  vec2("+v+".0, "+d+".0);\n        return sampleTexture("+n+", uv);\n      }\n    ";var m=Wo(n);return"\n    float "+r+"(int row, int col, int depth, int depth2, int depth3) {\n      // Explicitly use integer operations as dot() only works on floats.\n      int index = row * "+s+" + col * "+a+" + depth * "+i+" +\n          depth2 * "+o+" + depth3 + "+m+";\n      vec2 uv = uvFromFlat("+d+", "+v+", index);\n      return sampleTexture("+n+", uv);\n    }\n  "}(t);case 6:return function(t){var e=t.shapeInfo.logicalShape,n=t.name,r="get"+n.charAt(0).toUpperCase()+n.slice(1),o=N(e),i=o.newShape,a=o.keptDims;if(i.length<e.length){var s=Vo(t,i);return"\n      "+y(s)+"\n      float "+r+"(int row, int col, int depth,\n                    int depth2, int depth3, int depth4) {\n        return "+r+"("+Go(["row","col","depth","depth2","depth3","depth4"],a)+");\n      }\n    "}var u=e[5],c=e[4]*u,l=e[3]*c,h=e[2]*l,p=e[1]*h;if(t.shapeInfo.isUniform)return"\n      float "+r+"(int row, int col, int depth,\n                  int depth2, int depth3, int depth4) {\n        int index = round(dot(\n          vec4(row, col, depth, depth2),\n          vec4("+p+", "+h+", "+l+", "+c+")) +\n          dot(\n            vec2(depth3, depth4),\n            vec2("+u+", 1)));\n        "+zo(t)+"\n      }\n    ";var f=t.shapeInfo.flatOffset,d=t.shapeInfo.texShape,v=d[0],m=d[1];if(m===p&&null==f)return"\n      float "+r+"(int row, int col, int depth,\n                    int depth2, int depth3, int depth4) {\n        int texR = row;\n        float texC = dot(vec4(col, depth, depth2, depth3),\n          vec4("+h+", "+l+", "+c+", "+u+")) +\n               float(depth4);\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                   vec2("+m+".0, "+v+".0);\n        return sampleTexture("+n+", uv);\n      }\n    ";if(m===u&&null==f)return"\n      float "+r+"(int row, int col, int depth,\n                    int depth2, int depth3, int depth4) {\n        float texR = dot(vec4(row, col, depth, depth2),\n          vec4("+e[1]*e[2]*e[3]*e[4]+",\n               "+e[2]*e[3]*e[4]+",\n               "+e[3]*e[4]+",\n               "+e[4]+")) + float(depth3);\n        int texC = depth4;\n        vec2 uv = (vec2(texC, texR) + halfCR) /\n                  vec2("+m+".0, "+v+".0);\n        return sampleTexture("+n+", uv);\n      }\n    ";var g=Wo(n);return"\n    float "+r+"(int row, int col, int depth,\n                  int depth2, int depth3, int depth4) {\n      // Explicitly use integer operations as dot() only works on floats.\n      int index = row * "+p+" + col * "+h+" + depth * "+l+" +\n          depth2 * "+c+" + depth3 * "+u+" + depth4 + "+g+";\n      vec2 uv = uvFromFlat("+v+", "+m+", index);\n      return sampleTexture("+n+", uv);\n    }\n  "}(t);default:throw new Error(e.length+"-D input sampling is not yet supported")}}(t);var o=t.shapeInfo.logicalShape,i=e.logicalShape;return o.length<=i.length&&(r+=n?function(t,e){var n,r=t.name,o=r.charAt(0).toUpperCase()+r.slice(1),i="get"+o+"AtOutCoords",a=t.shapeInfo.logicalShape.length,s=e.logicalShape.length,u=eo(t.shapeInfo.logicalShape,e.logicalShape),c=Uo(s),l=s-a,h=["x","y","z","w","u","v"];n=0===a?"":s<2&&1<=u.length?"coords = 0;":u.map(function(t){return"coords."+h[t+l]+" = 0;"}).join("\n");var p;p=s<2&&0<a?"coords":t.shapeInfo.logicalShape.map(function(t,e){return"coords."+h[e+l]}).join(", ");var f="return outputValue;",d=1===L(t.shapeInfo.logicalShape),v=1===L(e.logicalShape);if(1!==a||d||v){if(d&&!v)f=1===s?"\n        return vec4(outputValue.x, outputValue.x, 0., 0.);\n      ":"\n        return vec4(outputValue.x);\n      ";else if(u.length){var m=a-2,g=a-1;-1<u.indexOf(m)&&-1<u.indexOf(g)?f="return vec4(outputValue.x);":-1<u.indexOf(m)?f="return vec4(outputValue.x, outputValue.y, outputValue.x, outputValue.y);":-1<u.indexOf(g)&&(f="return vec4(outputValue.xx, outputValue.zz);")}}else f="\n      return vec4(outputValue.xy, outputValue.xy);\n    ";return"\n    vec4 "+i+"() {\n      "+c+" coords = getOutputCoords();\n      "+n+"\n      vec4 outputValue = get"+o+"("+p+");\n      "+f+"\n    }\n  "}(t,e):function(t,e){var n=t.name,r=n.charAt(0).toUpperCase()+n.slice(1),o="get"+r+"AtOutCoords",i=e.texShape,a=t.shapeInfo.texShape,s=t.shapeInfo.logicalShape.length,u=e.logicalShape.length;if(!t.shapeInfo.isUniform&&s===u&&null==t.shapeInfo.flatOffset&&k(a,i))return"\n      float "+o+"() {\n        return sampleTexture("+n+", resultUV);\n      }\n    ";var c=Uo(u),l=eo(t.shapeInfo.logicalShape,e.logicalShape),h=u-s,p=["x","y","z","w","u","v"];return"\n    float "+o+"() {\n      "+c+" coords = getOutputCoords();\n      "+(0===s?"":u<2&&1<=l.length?"coords = 0;":l.map(function(t){return"coords."+p[t+h]+" = 0;"}).join("\n"))+"\n      return get"+r+"("+(u<2&&0<s?"coords":t.shapeInfo.logicalShape.map(function(t,e){return"coords."+p[e+h]}).join(", "))+");\n    }\n  "}(t,e)),r}(t,e,r)}).join("\n"),l=e.texShape,h=Mo(),p="\n    float sampleTexture(sampler2D textureSampler, vec2 uv) {\n      return "+h.texture2D+"(textureSampler, uv).r;\n    }\n  ",f=(s=h).version+"\n    precision highp float;\n    precision highp int;\n    precision highp sampler2D;\n    "+s.varyingFs+" vec2 resultUV;\n    "+s.defineOutput+"\n    const vec2 halfCR = vec2(0.5, 0.5);\n\n    struct ivec5\n    {\n      int x;\n      int y;\n      int z;\n      int w;\n      int u;\n    };\n\n    struct ivec6\n    {\n      int x;\n      int y;\n      int z;\n      int w;\n      int u;\n      int v;\n    };\n\n    uniform float NAN;\n    #define isnan(value) isnan_custom(value)\n    "+s.defineSpecialNaN+"\n    bvec4 isnan_custom(vec4 val) {\n      return bvec4(isnan(val.x), isnan(val.y), isnan(val.z), isnan(val.w));\n    }\n\n    "+s.defineSpecialInf+"\n    "+s.defineRound+"\n\n    int imod(int x, int y) {\n      return x - y * (x / y);\n    }\n\n    int idiv(int a, int b, float sign) {\n      int res = a / b;\n      int mod = imod(a, b);\n      if (sign < 0. && mod != 0) {\n        res -= 1;\n      }\n      return res;\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 uvFromFlat(int texNumR, int texNumC, int index) {\n  int texR = index / texNumC;\n  int texC = index - texR * texNumC;\n  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);\n}\nvec2 packedUVfrom1D(int texNumR, int texNumC, int index) {\n  int texelIndex = index / 2;\n  int texR = texelIndex / texNumC;\n  int texC = texelIndex - texR * texNumC;\n  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);\n}\n\n    \nvec2 packedUVfrom2D(int texelsInLogicalRow, int texNumR,\n  int texNumC, int row, int col) {\n  int texelIndex = (row / 2) * texelsInLogicalRow + (col / 2);\n  int texR = texelIndex / texNumC;\n  int texC = texelIndex - texR * texNumC;\n  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);\n}\n\n    \nvec2 packedUVfrom3D(int texNumR, int texNumC,\n    int texelsInBatch, int texelsInLogicalRow, int b,\n    int row, int col) {\n  int index = b * texelsInBatch + (row / 2) * texelsInLogicalRow + (col / 2);\n  int texR = index / texNumC;\n  int texC = index - texR * texNumC;\n  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);\n}\n\n  ";return a=e.isPacked?(i=function(t,e){switch(t.length){case 0:return"\n    int getOutputCoords() {\n      return 0;\n    }\n  ";case 1:return n=e,1===(r=[Math.ceil(n[0]/2),Math.ceil(n[1]/2)])[0]?"\n      int getOutputCoords() {\n        return 2 * int(resultUV.x * "+r[1]+".0);\n      }\n    ":1===r[1]?"\n      int getOutputCoords() {\n        return 2 * 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 2 * (resTexRC.x * "+r[1]+" + resTexRC.y);\n    }\n  ";case 2:return function(t,e){var n=[Math.ceil(e[0]/2),Math.ceil(e[1]/2)];if(k(t,e))return"\n      ivec2 getOutputCoords() {\n        return 2 * ivec2(resultUV.yx * vec2("+n[0]+", "+n[1]+"));\n      }\n    ";var r=Math.ceil(t[1]/2);return"\n    ivec2 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+n[0]+", "+n[1]+"));\n\n      int index = resTexRC.x * "+n[1]+" + resTexRC.y;\n      int r = 2 * (index / "+r+");\n      int c = imod(index, "+r+") * 2;\n\n      return ivec2(r, c);\n    }\n  "}(t,e);case 3:return o=t,i=e,a=[Math.ceil(i[0]/2),Math.ceil(i[1]/2)],u=(s=Math.ceil(o[2]/2))*Math.ceil(o[1]/2),"\n    ivec3 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+a[0]+", "+a[1]+"));\n      int index = resTexRC.x * "+a[1]+" + resTexRC.y;\n\n      int b = index / "+u+";\n      index -= b * "+u+";\n\n      int r = 2 * (index / "+s+");\n      int c = imod(index, "+s+") * 2;\n\n      return ivec3(b, r, c);\n    }\n  ";default:return function(t,e){for(var n=[Math.ceil(e[0]/2),Math.ceil(e[1]/2)],r=Math.ceil(t[t.length-1]/2),o=r*Math.ceil(t[t.length-2]/2),i=o,a="",s="b, r, c",u=2;u<t.length-1;u++)a="\n      int b"+u+" = index / "+(i*=t[t.length-u-1])+";\n      index -= b"+u+" * "+i+";\n    "+a,s="b"+u+", "+s;return"\n    ivec"+t.length+" getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+n[0]+", "+n[1]+"));\n      int index = resTexRC.x * "+n[1]+" + resTexRC.y;\n\n      "+a+"\n\n      int b = index / "+o+";\n      index -= b * "+o+";\n\n      int r = 2 * (index / "+r+");\n      int c = imod(index, "+r+") * 2;\n\n      return ivec"+t.length+"("+s+");\n    }\n  "}(t,e)}var n,r,o,i,a,s,u}(e.logicalShape,l),"\n    void setOutput(vec4 val) {\n      "+h.output+" = val;\n    }\n  "):(i=function(t,e){switch(t.length){case 0:return"\n    int getOutputCoords() {\n      return 0;\n    }\n  ";case 1:return 1===(l=e)[0]?"\n      int getOutputCoords() {\n        return int(resultUV.x * "+l[1]+".0);\n      }\n    ":1===l[1]?"\n      int getOutputCoords() {\n        return int(resultUV.y * "+l[0]+".0);\n      }\n    ":"\n    int getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+l[0]+", "+l[1]+"));\n      return resTexRC.x * "+l[1]+" + resTexRC.y;\n    }\n  ";case 2:return k(u=t,c=e)?"\n      ivec2 getOutputCoords() {\n        return ivec2(resultUV.yx * vec2("+c[0]+", "+c[1]+"));\n      }\n    ":1===u[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===u[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 / "+u[1]+";\n      int c = index - r * "+u[1]+";\n      return ivec2(r, c);\n    }\n  ";case 3:return h=e,p=Po(["r","c","d"],t),"\n    ivec3 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n                             vec2("+h[0]+", "+h[1]+"));\n      int index = resTexRC.x * "+h[1]+" + resTexRC.y;\n      "+p+"\n      return ivec3(r, c, d);\n    }\n  ";case 4:return a=e,s=Po(["r","c","d","d2"],t),"\n    ivec4 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n        vec2("+a[0]+", "+a[1]+"));\n      int index = resTexRC.x * "+a[1]+" + resTexRC.y;\n      "+s+"\n      return ivec4(r, c, d, d2);\n    }\n  ";case 5:return o=e,i=Po(["r","c","d","d2","d3"],t),"\n    ivec5 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx * vec2("+o[0]+",\n                             "+o[1]+"));\n\n      int index = resTexRC.x * "+o[1]+" + resTexRC.y;\n\n      "+i+"\n\n      ivec5 outShape = ivec5(r, c, d, d2, d3);\n      return outShape;\n    }\n  ";case 6:return n=e,r=Po(["r","c","d","d2","d3","d4"],t),"\n    ivec6 getOutputCoords() {\n      ivec2 resTexRC = ivec2(resultUV.yx *\n        vec2("+n[0]+", "+n[1]+"));\n      int index = resTexRC.x * "+n[1]+" + resTexRC.y;\n\n      "+r+"\n\n      ivec6 result = ivec6(r, c, d, d2, d3, d4);\n      return result;\n    }\n  ";default:throw new Error(t.length+"-D output sampling is not yet supported")}var n,r,o,i,a,s,u,c,l,h,p}(e.logicalShape,l),"\n    void setOutput(float val) {\n      "+h.output+" = vec4(val, 0, 0, 0);\n    }\n  "),r&&(f+="\n  float getChannel(vec4 frag, vec2 innerDims) {\n    vec2 modCoord = mod(innerDims, 2.);\n    return modCoord.x == 0. ?\n      (modCoord.y == 0. ? frag.r : frag.g) :\n      (modCoord.y == 0. ? frag.b : frag.a);\n  }\n  float getChannel(vec4 frag, int dim) {\n    float modCoord = mod(float(dim), 2.);\n    return modCoord == 0. ? frag.r : frag.g;\n  }\n"),[f,p,a,u,i,c,n].join("\n")}function Wo(t){return"offset"+t}function zo(t){var e=t.name,n=L(t.shapeInfo.logicalShape);return n<2?"return "+e+";":"\n    for (int i = 0; i < "+n+"; i++) {\n      if (i == index) {\n        return "+e+"[i];\n      }\n    }\n  "}function Uo(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 Vo(t,e){var n=JSON.parse(JSON.stringify(t));return n.shapeInfo.logicalShape=e,n}function Go(e,t){return t.map(function(t){return e[t]}).join(", ")}var Ho=function(t,e,n,r){this.variableNames=["A"],this.usesPackedTextures=!0,O(2<t.length,function(){return"Packed arg"+(n.charAt(0).toUpperCase()+n.slice(1))+" supports only inputs with rank above 2."});var o=t[t.length-1],i=Math.ceil(o/e);this.outputShape=t.slice(0,-1),1<i&&this.outputShape.push(i),r||this.variableNames.push("bestIndicesA");var a,s,u=this.outputShape,c=u.length,l=Uo(c),h=Fo("coords",c);if(1===i){var p=Uo(s=c+1);a="\n        "+p+" sourceLocR = "+p+"("+h.join()+", 0);\n        ++"+h[c-1]+";\n        "+p+" sourceLocG = "+p+"("+h.join()+", 0);\n        ++"+h[c-2]+";\n        "+p+" sourceLocA = "+p+"("+h.join()+", 0);\n        --"+h[c-1]+";\n        "+p+" sourceLocB = "+p+"("+h.join()+", 0);\n        --"+h[c-2]+";"}else a="\n        "+l+" sourceLocR = coords;\n        ++"+h[(s=c)-1]+";\n        "+l+" sourceLocG = coords;\n        ++"+h[c-2]+";\n        "+l+" sourceLocA = coords;\n        --"+h[c-1]+";\n        "+l+" sourceLocB = coords;\n        --"+h[c-2]+";";var f=["x","y","z","w","u","v"].slice(0,s),d="."+f[s-1],v=f.map(function(t){return"int "+t}),m=Fo("sourceLocR",s-1).concat("inIdx.r"),g=Fo("sourceLocG",s-1).concat("inIdx.g"),y=Fo("sourceLocB",s-1).concat("inIdx.b"),x=Fo("sourceLocA",s-1).concat("inIdx.a"),b="max"===n?"greaterThan":"lessThan",w=r?"":"\n          inIdx = round(vec4(getBestIndicesAChannel("+m.join()+"),\n                             getBestIndicesAChannel("+g.join()+"),\n                             getBestIndicesAChannel("+y.join()+"),\n                             getBestIndicesAChannel("+x.join()+")));",C="vec4(\n            getAChannel("+m.join()+"),\n            hasNextCol ? getAChannel("+g.join()+") : 0.,\n            hasNextRow ? getAChannel("+y.join()+") : 0.,\n            hasNextRow && hasNextCol ? getAChannel("+x.join()+") : 0.)",E=r?"":"\n      float getBestIndicesAChannel("+v.join()+") {\n        return getChannel(getBestIndicesA("+f.join()+"),\n                                          vec2("+f.slice(-2).join()+"));\n      }";this.userCode="\n      float getAChannel("+v.join()+") {\n        return getChannel(getA("+f.join()+"),\n                               vec2("+f.slice(-2).join()+"));\n      }\n      "+E+"\n      void main() {\n        "+l+" coords = getOutputCoords();\n        bool hasNextCol = "+h[c-1]+" < "+(u[c-1]-1)+";\n        bool hasNextRow = "+h[c-2]+" < "+(u[c-2]-1)+";\n        "+a+"\n        ivec4 srcIdx = ivec4(sourceLocR"+d+", sourceLocG"+d+",\n          sourceLocB"+d+", sourceLocA"+d+") * "+e+";\n        ivec4 inIdx = srcIdx;\n        vec4 bestIndex = vec4(inIdx);\n        vec4 bestValue = "+C+";\n\n        for (int i = 0; i < "+e+"; i++) {\n          inIdx = srcIdx;\n          "+w+"\n          vec4 candidate = "+C+";\n          bvec4 nan = isnan(candidate);\n          bvec4 replace = bvec4(\n            vec4("+b+"(candidate, bestValue)) * (vec4(1.0) - vec4(nan)));\n\n          bestValue = vec4(replace.x  ? candidate.x : bestValue.x,\n                           replace.y  ? candidate.y : bestValue.y,\n                           replace.z  ? candidate.z : bestValue.z,\n                           replace.w  ? candidate.w : bestValue.w);\n          bestIndex = mix(bestIndex, vec4(inIdx), vec4(replace));\n          srcIdx++;\n        }\n        setOutput(bestIndex);\n      }\n    "},jo=function(t){this.variableNames=["dy"],this.outputShape=t.inShape;var e=t.filterHeight,n=t.filterWidth,r=t.strideHeight,o=t.strideWidth,i=t.dilationHeight,a=t.dilationWidth,s=t.effectiveFilterHeight,u=t.effectiveFilterWidth,c=s-1-t.padInfo.top,l=u-1-t.padInfo.left,h=1/(e*n);this.userCode="\n      const ivec2 pads = ivec2("+c+", "+l+");\n      const float avgMultiplier = float("+h+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n\n        ivec2 dyRCCorner = coords.yz - pads;\n        int dyRCorner = dyRCCorner.x;\n        int dyCCorner = dyRCCorner.y;\n\n        // Convolve dy(?, ?, d) with pos mask(:, :, d) to get dx(xR, xC, d).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n        for (int wR = 0; wR < "+s+";\n            wR += "+i+") {\n          float dyR = float(dyRCorner + wR) / "+r+".0;\n\n          if (dyR < 0.0 || dyR >= "+t.outHeight+".0 || fract(dyR) > 0.0) {\n            continue;\n          }\n          int idyR = int(dyR);\n\n          for (int wC = 0; wC < "+u+";\n            wC+= "+a+") {\n            float dyC = float(dyCCorner + wC) / "+o+".0;\n\n            if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n                fract(dyC) > 0.0) {\n              continue;\n            }\n            int idyC = int(dyC);\n\n            float dyValue = getDy(b, idyR, idyC, d);\n\n            dotProd += dyValue * avgMultiplier;\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},qo=function(t){this.variableNames=["dy"],this.outputShape=t.inShape;var e=t.filterDepth,n=t.filterHeight,r=t.filterWidth,o=t.strideDepth,i=t.strideHeight,a=t.strideWidth,s=t.dilationDepth,u=t.dilationHeight,c=t.dilationWidth,l=t.effectiveFilterDepth,h=t.effectiveFilterHeight,p=t.effectiveFilterWidth,f=l-1-t.padInfo.front,d=h-1-t.padInfo.top,v=p-1-t.padInfo.left,m=1/(e*n*r);this.userCode="\n      const ivec3 pads = ivec3("+f+", "+d+", "+v+");\n      const float avgMultiplier = float("+m+");\n\n      void main() {\n        ivec5 coords = getOutputCoords();\n        int batch = coords.x;\n        int ch = coords.u;\n\n        ivec3 dyCorner = ivec3(coords.y, coords.z, coords.w) - pads;\n        int dyDCorner = dyCorner.x;\n        int dyRCorner = dyCorner.y;\n        int dyCCorner = dyCorner.z;\n\n        // Convolve dy(?, ?, ?, d) with pos mask(:, :, :, ch) to get\n        // dx(xD, xR, xC, ch).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n\n        for (int wD = 0; wD < "+l+";\n            wD += "+s+") {\n          float dyD = float(dyDCorner + wD) / "+o+".0;\n\n          if (dyD < 0.0 || dyD >= "+t.outDepth+".0 || fract(dyD) > 0.0) {\n            continue;\n          }\n          int idyD = int(dyD);\n\n          for (int wR = 0; wR < "+h+";\n              wR += "+u+") {\n            float dyR = float(dyRCorner + wR) / "+i+".0;\n\n            if (dyR < 0.0 || dyR >= "+t.outHeight+".0 ||\n                fract(dyR) > 0.0) {\n              continue;\n            }\n            int idyR = int(dyR);\n\n            for (int wC = 0; wC < "+p+";\n                wC += "+c+") {\n              float dyC = float(dyCCorner + wC) / "+a+".0;\n\n              if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n                  fract(dyC) > 0.0) {\n                continue;\n              }\n              int idyC = int(dyC);\n\n              float dyValue = getDy(batch, idyD, idyR, idyC, ch);\n\n              dotProd += dyValue * avgMultiplier;\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},$o=function(t,e,n,r,o,i){this.outputShape=[],this.variableNames=["x","mean","variance"],ro(t,e),ro(t,n);var a="0.0";null!=r&&(ro(t,r),this.variableNames.push("offset"),a="getOffsetAtOutCoords()");var s="1.0";null!=o&&(ro(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    "},Ko=function(t,e,n,r,o,i){this.usesPackedTextures=!0,this.variableNames=["x","mean","variance"],ro(t,e),ro(t,n);var a="vec4(0.0)";null!=r&&(ro(t,r),this.variableNames.push("offset"),a="getOffsetAtOutCoords()");var s="vec4(1.0)";null!=o&&(ro(t,o),this.variableNames.push("scale"),s="getScaleAtOutCoords()"),this.outputShape=t,this.userCode="\n      void main() {\n        vec4 offset = "+a+";\n        vec4 scale = "+s+";\n\n        vec4 x = getXAtOutCoords();\n        vec4 mean = getMeanAtOutCoords();\n        vec4 variance = getVarianceAtOutCoords();\n\n        vec4 inv = scale * inversesqrt(variance + vec4("+i+"));\n\n        setOutput((x - mean) * inv + offset);\n      }\n    "},Xo=function(t,e,n){this.variableNames=["AReal","AImag","BReal","BImag"],this.outputShape=ro(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    "},Yo="return a + b;",Jo="return a - b;",Qo="return a * b;",Zo="return (a < 0.) ? b * a : a;",ti=function(t,e,n){this.variableNames=["A","B"],this.outputShape=ro(e,n),this.userCode="\n      float binaryOperation(float a, float b) {\n        "+t+"\n      }\n\n      void main() {\n        float a = getAAtOutCoords();\n        float b = getBAtOutCoords();\n        setOutput(binaryOperation(a, b));\n      }\n    "},ei="\n  vec4 aLessThanZero = vec4(lessThan(a, vec4(0.)));\n  return (aLessThanZero * (b * a)) + ((vec4(1.0) - aLessThanZero) * a);\n",ni=function(t,e,n,r){void 0===r&&(r=!1),this.variableNames=["A","B"],this.supportsBroadcasting=!0,this.usesPackedTextures=!0,this.outputShape=ro(e,n);var o=this.outputShape.length,i="";if(r)if(0===o||1===L(this.outputShape))i="\n          result.y = 0.;\n          result.z = 0.;\n          result.w = 0.;\n        ";else if(i="\n          "+Uo(o)+" coords = getOutputCoords();\n        ",1===o)i+="\n            result.y = (coords + 1) >= "+this.outputShape[0]+" ? 0. : result.y;\n            result.z = 0.;\n            result.w = 0.;\n          ";else{var a=Fo("coords",o);i+="\n            bool nextRowOutOfBounds =\n              ("+a[o-2]+" + 1) >= "+this.outputShape[o-2]+";\n            bool nextColOutOfBounds =\n              ("+a[o-1]+" + 1) >= "+this.outputShape[o-1]+";\n            result.y = nextColOutOfBounds ? 0. : result.y;\n            result.z = nextRowOutOfBounds ? 0. : result.z;\n            result.w = nextColOutOfBounds || nextRowOutOfBounds ? 0. : result.w;\n          "}this.userCode="\n      vec4 binaryOperation(vec4 a, vec4 b) {\n        "+t+"\n      }\n\n      void main() {\n        vec4 a = getAAtOutCoords();\n        vec4 b = getBAtOutCoords();\n\n        vec4 result = binaryOperation(a, b);\n        "+i+"\n\n        setOutput(result);\n      }\n    "},ri=(wi.prototype.getCustomSetupFunc=function(n,r){var o=this;return function(t,e){null==o.minLoc&&(o.minLoc=t.getUniformLocationNoThrow(e,"minVal"),o.maxLoc=t.getUniformLocationNoThrow(e,"maxVal")),t.gl.uniform1f(o.minLoc,n),t.gl.uniform1f(o.maxLoc,r)}},wi),oi=(bi.prototype.getCustomSetupFunc=function(n,r){var o=this;return function(t,e){null==o.minLoc&&(o.minLoc=t.getUniformLocationNoThrow(e,"minVal"),o.maxLoc=t.getUniformLocationNoThrow(e,"maxVal")),t.gl.uniform1f(o.minLoc,n),t.gl.uniform1f(o.maxLoc,r)}},bi),ii=function(t){this.variableNames=["real","imag"],this.outputShape=t,this.userCode="\n      void main() {\n        float re = abs(getRealAtOutCoords());\n        float im = abs(getImagAtOutCoords());\n        float mx = max(re, im);\n\n        // sadly the length function in glsl is not underflow-safe\n        // (at least not on Intel GPUs). So the safe solution is\n        // to ensure underflow-safety in all cases.\n        setOutput(\n          mx == 0.0 ? 0.0 : mx * length(vec2(1, min(re, im)/mx))\n        );\n      }\n    "},ai=function(t){this.outputShape=[],this.outputShape=mn(t,1),this.variableNames=t.map(function(t,e){return"T"+e});var e=new Array(t.length-1);e[0]=t[0][1];for(var n=1;n<e.length;n++)e[n]=e[n-1]+t[n][1];var r=["if (yC < "+e[0]+") setOutput(getT0(yR, yC));"];for(n=1;n<e.length;n++){var o=e[n-1];r.push("else if (yC < "+e[n]+") setOutput(getT"+n+"(yR, yC-"+o+"));")}var i=e.length,a=e[e.length-1];r.push("else setOutput(getT"+i+"(yR, yC-"+a+"));"),this.userCode="\n      void main() {\n        ivec2 coords = getOutputCoords();\n        int yR = coords.x;\n        int yC = coords.y;\n\n        "+r.join("\n        ")+"\n      }\n    "},si=function(t,e){this.usesPackedTextures=!0,this.outputShape=[],this.outputShape=mn(t,e);var n=this.outputShape,r=n.length,o=Uo(r),i=Fo("coords",r),a=["x","y","z","w","u","v"].slice(0,r);this.variableNames=t.map(function(t,e){return"T"+e});var s=new Array(t.length-1);s[0]=t[0][e];for(var u=1;u<s.length;u++)s[u]=s[u-1]+t[u][e];var c=a[e],l="vec2("+a.slice(-2).join()+")",h=a.join(),p="if ("+c+" < "+s[0]+")\n          return getChannel(getT0("+h+"), "+l+");";for(u=1;u<s.length;u++){var f=s[u-1];p+="\n        else if ("+c+" < "+s[u]+") {\n          "+c+" -= "+f+";\n          return getChannel(getT"+u+"("+h+"), "+l+");\n        }"}var d=s.length;p+="\n        else {\n          "+c+" -= "+s[s.length-1]+";\n          return getChannel(getT"+d+"("+h+"), "+l+");\n        }",this.userCode="\n      float getValue("+a.map(function(t){return"int "+t})+") {\n        "+p+"\n      }\n\n      void main() {\n        "+o+" coords = getOutputCoords();\n        vec4 result = vec4(getValue("+i+"), 0., 0., 0.);\n        if (++"+i[r-1]+" < "+n[r-1]+") {\n          result.g = getValue("+i+");\n        }\n        if (++"+i[r-2]+" < "+n[r-2]+") {\n          result.a = getValue("+i+");\n        }\n        if ("+i[r-2]+" < "+n[r-2]+" &&\n            --"+i[r-1]+" < "+n[r-1]+") {\n          result.b = getValue("+i+");\n        }\n        setOutput(result);\n      }\n    "},ui=function(t){this.variableNames=["x","dy"],this.outputShape=t.filterShape;var e=t.strideHeight,n=t.strideWidth,r=t.padInfo.top,o=t.padInfo.left,i="channelsLast"===t.dataFormat;this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int wR = coords.x;\n        int wC = coords.y;\n        int d1 = coords.z;\n        int d2 = coords.w;\n\n        // Convolve x(?, ?, d1) with dy(:, :, d2) to get dw(wR, wC, d1, d2).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n\n        for (int b = 0; b < "+t.batchSize+"; b++) {\n          for (int yR = 0; yR < "+t.outHeight+"; yR++) {\n            int xR = wR + yR * "+e+" - "+r+";\n\n            if (xR < 0 || xR >= "+t.inHeight+") {\n              continue;\n            }\n\n            for (int yC = 0; yC < "+t.outWidth+"; yC++) {\n              int xC = wC + yC * "+n+" - "+o+";\n\n              if (xC < 0 || xC >= "+t.inWidth+") {\n                continue;\n              }\n\n              if ("+i+") {\n                float dyValue = getDy(b, yR, yC, d2);\n                float xValue = getX(b, xR, xC, d1);\n                dotProd += (xValue * dyValue);\n              } else {\n                float dyValue = getDy(b, d2, yR, yC);\n                float xValue = getX(b, d1, xR, xC);\n                dotProd += (xValue * dyValue);\n              }\n\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},ci=function(t){this.variableNames=["dy","W"],this.outputShape=t.inShape;var e=t.filterHeight,n=t.filterWidth,r=t.strideHeight,o=t.strideWidth,i="channelsLast"===t.dataFormat,a=e-1-t.padInfo.top,s=n-1-t.padInfo.left,u=i?1:2,c=i?2:3,l=i?3:1;this.userCode="\n      const ivec2 pads = ivec2("+a+", "+s+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int batch = coords[0];\n        int d1 = coords["+l+"];\n\n        ivec2 dyCorner = ivec2(coords["+u+"], coords["+c+"]) - pads;\n        int dyRCorner = dyCorner.x;\n        int dyCCorner = dyCorner.y;\n\n        // Convolve dy(?, ?, d2) with w(:, :, d1, d2) to compute dx(xR, xC, d1).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n        for (int wR = 0; wR < "+e+"; wR++) {\n          float dyR = float(dyRCorner + wR) / "+r+".0;\n\n          if (dyR < 0.0 || dyR >= "+t.outHeight+".0 || fract(dyR) > 0.0) {\n            continue;\n          }\n          int idyR = int(dyR);\n\n          int wRPerm = "+e+" - 1 - wR;\n\n          for (int wC = 0; wC < "+n+"; wC++) {\n            float dyC = float(dyCCorner + wC) / "+o+".0;\n\n            if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n                fract(dyC) > 0.0) {\n              continue;\n            }\n            int idyC = int(dyC);\n\n            int wCPerm = "+n+" - 1 - wC;\n\n            for (int d2 = 0; d2 < "+t.outChannels+"; d2++) {\n\n              if ("+i+") {\n                float xValue = getDy(batch, idyR, idyC, d2);\n                float wValue = getW(wRPerm, wCPerm, d1, d2);\n                dotProd += xValue * wValue;\n              } else {\n                float xValue = getDy(batch, d2, idyR, idyC);\n                float wValue = getW(wRPerm, wCPerm, d1, d2);\n                dotProd += xValue * wValue;\n              }\n\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},li=function(t){this.variableNames=["x","dy"],this.outputShape=t.filterShape;var e=t.strideDepth,n=t.strideHeight,r=t.strideWidth,o=t.padInfo.front,i=t.padInfo.top,a=t.padInfo.left;this.userCode="\n      void main() {\n        ivec5 coords = getOutputCoords();\n        int wF = coords.x;\n        int wR = coords.y;\n        int wC = coords.z;\n        int d1 = coords.w;\n        int d2 = coords.u;\n\n        float dotProd = 0.0;\n\n        for (int b = 0; b < "+t.batchSize+"; b++) {\n          for (int yF = 0; yF < "+t.outDepth+"; yF++) {\n            int xF = wF + yF * "+e+" - "+o+";\n\n            if (xF < 0 || xF >= "+t.inDepth+") {\n              continue;\n            }\n\n            for (int yR = 0; yR < "+t.outHeight+"; yR++) {\n              int xR = wR + yR * "+n+" - "+i+";\n\n              if (xR < 0 || xR >= "+t.inHeight+") {\n                continue;\n              }\n\n              for (int yC = 0; yC < "+t.outWidth+"; yC++) {\n                int xC = wC + yC * "+r+" - "+a+";\n\n                if (xC < 0 || xC >= "+t.inWidth+") {\n                  continue;\n                }\n\n                float dyValue = getDy(b, yF, yR, yC, d2);\n                float xValue = getX(b, xF, xR, xC, d1);\n                dotProd += (xValue * dyValue);\n              }\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},hi=function(t){this.variableNames=["dy","W"],this.outputShape=t.inShape;var e=t.filterDepth,n=t.filterHeight,r=t.filterWidth,o=t.strideDepth,i=t.strideHeight,a=t.strideWidth,s=e-1-t.padInfo.front,u=n-1-t.padInfo.top,c=r-1-t.padInfo.left;this.userCode="\n      const ivec3 pads = ivec3("+s+", "+u+", "+c+");\n\n      void main() {\n        ivec5 coords = getOutputCoords();\n        int batch = coords.x;\n        int d1 = coords.u;\n\n\n        ivec3 dyCorner = ivec3(coords.y, coords.z, coords.w) - pads;\n        int dyFCorner = dyCorner.x;\n        int dyRCorner = dyCorner.y;\n        int dyCCorner = dyCorner.z;\n\n        float dotProd = 0.0;\n        for (int wF = 0; wF < "+e+"; wF++) {\n          float dyF = float(dyFCorner + wF) / "+o+".0;\n\n          if (dyF < 0.0 || dyF >= "+t.outDepth+".0 || fract(dyF) > 0.0) {\n            continue;\n          }\n          int idyF = int(dyF);\n\n          int wFPerm = "+e+" - 1 - wF;\n\n          for (int wR = 0; wR < "+n+"; wR++) {\n            float dyR = float(dyRCorner + wR) / "+i+".0;\n\n            if (dyR < 0.0 || dyR >= "+t.outHeight+".0 ||\n              fract(dyR) > 0.0) {\n              continue;\n            }\n            int idyR = int(dyR);\n\n            int wRPerm = "+n+" - 1 - wR;\n\n            for (int wC = 0; wC < "+r+"; wC++) {\n              float dyC = float(dyCCorner + wC) / "+a+".0;\n\n              if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n                  fract(dyC) > 0.0) {\n                continue;\n              }\n              int idyC = int(dyC);\n\n              int wCPerm = "+r+" - 1 - wC;\n\n              for (int d2 = 0; d2 < "+t.outChannels+"; d2++) {\n                float xValue = getDy(batch, idyF, idyR, idyC, d2);\n                float wValue = getW(wFPerm, wRPerm, wCPerm, d1, d2);\n                dotProd += xValue * wValue;\n              }\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},pi=function(t){this.variableNames=["x","dy"],this.outputShape=t.filterShape;var e=t.strideHeight,n=t.strideWidth,r=t.padInfo.top,o=t.padInfo.left,i=t.outChannels/t.inChannels;this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int wR = coords.x;\n        int wC = coords.y;\n        int d1 = coords.z;\n        int dm = coords.w;\n        int d2 = d1 * "+i+" + dm;\n\n        float dotProd = 0.0;\n\n        // TO DO: Vec4 over the batch size\n        for (int b = 0; b < "+t.batchSize+"; b++) {\n          for (int yR = 0; yR < "+t.outHeight+"; yR++) {\n            int xR = wR + yR * "+e+" - "+r+";\n\n            if (xR < 0 || xR >= "+t.inHeight+") {\n              continue;\n            }\n\n            for (int yC = 0; yC < "+t.outWidth+"; yC++) {\n              int xC = wC + yC * "+n+" - "+o+";\n\n              if (xC < 0 || xC >= "+t.inWidth+") {\n                continue;\n              }\n\n              float dyValue = getDy(b, yR, yC, d2);\n              float xValue = getX(b, xR, xC, d1);\n              dotProd += (xValue * dyValue);\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},fi=function(t){this.variableNames=["dy","W"],this.outputShape=t.inShape;var e=t.filterHeight,n=t.filterWidth,r=t.strideHeight,o=t.strideWidth,i=e-1-t.padInfo.top,a=n-1-t.padInfo.left,s=t.outChannels/t.inChannels;this.userCode="\n      const ivec2 pads = ivec2("+i+", "+a+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int batch = coords[0];\n        int d1 = coords[3];\n        ivec2 dyCorner = coords.yz - pads;\n        int dyRCorner = dyCorner.x;\n        int dyCCorner = dyCorner.y;\n\n        float dotProd = 0.0;\n\n        for (int wR = 0; wR < "+e+"; wR++) {\n          float dyR = float(dyRCorner + wR) / "+r+".0;\n\n          if (dyR < 0.0 || dyR >= "+t.outHeight+".0 || fract(dyR) > 0.0) {\n            continue;\n          }\n          int idyR = int(dyR);\n\n          int wRPerm = "+e+" - 1 - wR;\n\n          for (int wC = 0; wC < "+n+"; wC++) {\n            float dyC = float(dyCCorner + wC) / "+o+".0;\n\n            if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n                fract(dyC) > 0.0) {\n              continue;\n            }\n            int idyC = int(dyC);\n\n            int wCPerm = "+n+" - 1 - wC;\n\n            // TO DO: Vec4 over the channelMul\n            for (int dm = 0; dm < "+s+"; dm++) {\n              int d2 = d1 * "+s+" + dm;\n              float xValue = getDy(batch, idyR, idyC, d2);\n              float wValue = getW(wRPerm, wCPerm, d1, dm);\n              dotProd += xValue * wValue;\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},di=function(t,e,n,r){void 0===e&&(e=!1),void 0===n&&(n=null),void 0===r&&(r=!1),this.variableNames=["x","W"],this.outputShape=t.outShape;var o=t.padInfo.top,i=t.padInfo.left,a=t.strideHeight,s=t.strideWidth,u=t.dilationHeight,c=t.dilationWidth,l=t.filterHeight,h=t.filterWidth,p=4*Math.floor(t.inChannels/4),f=t.inChannels%4,d="channelsLast"===t.dataFormat,v=d?1:2,m=d?2:3,g=d?3:1,y="",x="";n&&(y=r?"float activation(float a) {\n          float b = getPreluActivationWeightsAtOutCoords();\n          "+n+"\n        }":"\n          float activation(float x) {\n            "+n+"\n          }\n        ",x="result = activation(result);");var b=e?"result += getBiasAtOutCoords();":"";e&&this.variableNames.push("bias"),r&&this.variableNames.push("preluActivationWeights"),this.userCode="\n      "+y+"\n\n      const ivec2 strides = ivec2("+a+", "+s+");\n      const ivec2 pads = ivec2("+o+", "+i+");\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int batch = coords[0];\n        int d2 = coords["+g+"];\n\n        ivec2 xRCCorner =\n            ivec2(coords["+v+"], coords["+m+"]) * strides - pads;\n        int xRCorner = xRCCorner.x;\n        int xCCorner = xRCCorner.y;\n\n        // Convolve x(?, ?, d1) with w(:, :, d1, d2) to get y(yR, yC, d2).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n        for (int wR = 0; wR < "+l+"; wR++) {\n          int xR = xRCorner + wR * "+u+";\n\n          if (xR < 0 || xR >= "+t.inHeight+") {\n            continue;\n          }\n\n          for (int wC = 0; wC < "+h+"; wC++) {\n            int xC = xCCorner + wC * "+c+";\n\n            if (xC < 0 || xC >= "+t.inWidth+") {\n              continue;\n            }\n\n            for (int d1 = 0; d1 < "+p+"; d1 += 4) {\n              vec4 wValues = vec4(\n                getW(wR, wC, d1, d2),\n                getW(wR, wC, d1 + 1, d2),\n                getW(wR, wC, d1 + 2, d2),\n                getW(wR, wC, d1 + 3, d2)\n              );\n\n              if ("+d+") {\n                vec4 xValues = vec4(\n                  getX(batch, xR, xC, d1),\n                  getX(batch, xR, xC, d1 + 1),\n                  getX(batch, xR, xC, d1 + 2),\n                  getX(batch, xR, xC, d1 + 3)\n                );\n                dotProd += dot(xValues, wValues);\n              } else {\n                vec4 xValues = vec4(\n                  getX(batch, d1, xR, xC),\n                  getX(batch, d1 + 1, xR, xC),\n                  getX(batch, d1 + 2, xR, xC),\n                  getX(batch, d1 + 3, xR, xC)\n                );\n                dotProd += dot(xValues, wValues);\n              }\n            }\n\n            if ("+(1==f)+") {\n\n              if ("+d+") {\n                dotProd +=\n                    getX(batch, xR, xC, "+p+") *\n                    getW(wR, wC, "+p+", d2);\n              } else {\n                dotProd +=\n                    getX(batch, "+p+", xR, xC) *\n                    getW(wR, wC, "+p+", d2);\n              }\n\n            } else if ("+(2==f)+") {\n              vec2 wValues = vec2(\n                getW(wR, wC, "+p+", d2),\n                getW(wR, wC, "+p+" + 1, d2)\n              );\n\n              if ("+d+") {\n                vec2 xValues = vec2(\n                  getX(batch, xR, xC, "+p+"),\n                  getX(batch, xR, xC, "+p+" + 1)\n                );\n                dotProd += dot(xValues, wValues);\n              } else {\n                vec2 xValues = vec2(\n                  getX(batch, "+p+", xR, xC),\n                  getX(batch, "+p+" + 1, xR, xC)\n                );\n                dotProd += dot(xValues, wValues);\n              }\n\n            } else if ("+(3==f)+") {\n              vec3 wValues = vec3(\n                getW(wR, wC, "+p+", d2),\n                getW(wR, wC, "+p+" + 1, d2),\n                getW(wR, wC, "+p+" + 2, d2)\n              );\n\n              if ("+d+") {\n                vec3 xValues = vec3(\n                  getX(batch, xR, xC, "+p+"),\n                  getX(batch, xR, xC, "+p+" + 1),\n                  getX(batch, xR, xC, "+p+" + 2)\n                );\n                dotProd += dot(xValues, wValues);\n              } else {\n                vec3 xValues = vec3(\n                  getX(batch, "+p+", xR, xC),\n                  getX(batch, "+p+" + 1, xR, xC),\n                  getX(batch, "+p+" + 2, xR, xC)\n                );\n                dotProd += dot(xValues, wValues);\n              }\n\n            }\n          }\n        }\n\n        float result = dotProd;\n        "+b+"\n        "+x+"\n        setOutput(result);\n      }\n    "},vi=function(t){this.variableNames=["x","W"],this.outputShape=t.outShape;var e=t.padInfo.front,n=t.padInfo.top,r=t.padInfo.left,o=t.strideDepth,i=t.strideHeight,a=t.strideWidth,s=t.dilationDepth,u=t.dilationHeight,c=t.dilationWidth,l=t.filterDepth,h=t.filterHeight,p=t.filterWidth,f=4*Math.floor(t.inChannels/4),d=t.inChannels%4;this.userCode="\n      const ivec3 strides = ivec3("+o+", "+i+", "+a+");\n      const ivec3 pads = ivec3("+e+", "+n+", "+r+");\n\n      void main() {\n        ivec5 coords = getOutputCoords();\n        int batch = coords.x;\n        int d2 = coords.u;\n\n        ivec3 xFRCCorner = ivec3(coords.y, coords.z, coords.w) * strides - pads;\n        int xFCorner = xFRCCorner.x;\n        int xRCorner = xFRCCorner.y;\n        int xCCorner = xFRCCorner.z;\n\n        // Convolve x(?, ?, ?, d1) with w(:, :, :, d1, d2) to get\n        // y(yF, yR, yC, d2). ? = to be determined. : = across all\n        // values in that axis.\n        float dotProd = 0.0;\n        for (int wF = 0; wF < "+l+"; wF++) {\n          int xF = xFCorner + wF * "+s+";\n\n          if (xF < 0 || xF >= "+t.inDepth+") {\n            continue;\n          }\n\n          for (int wR = 0; wR < "+h+"; wR++) {\n            int xR = xRCorner + wR * "+u+";\n\n            if (xR < 0 || xR >= "+t.inHeight+") {\n              continue;\n            }\n\n            for (int wC = 0; wC < "+p+"; wC++) {\n              int xC = xCCorner + wC * "+c+";\n\n              if (xC < 0 || xC >= "+t.inWidth+") {\n                continue;\n              }\n\n              for (int d1 = 0; d1 < "+f+"; d1 += 4) {\n                vec4 xValues = vec4(\n                  getX(batch, xF, xR, xC, d1),\n                  getX(batch, xF, xR, xC, d1 + 1),\n                  getX(batch, xF, xR, xC, d1 + 2),\n                  getX(batch, xF, xR, xC, d1 + 3)\n                );\n                vec4 wValues = vec4(\n                  getW(wF, wR, wC, d1, d2),\n                  getW(wF, wR, wC, d1 + 1, d2),\n                  getW(wF, wR, wC, d1 + 2, d2),\n                  getW(wF, wR, wC, d1 + 3, d2)\n                );\n\n                dotProd += dot(xValues, wValues);\n              }\n\n              if ("+(1==d)+") {\n                dotProd +=\n                  getX(batch, xF, xR, xC, "+f+") *\n                  getW(wF, wR, wC, "+f+", d2);\n              } else if ("+(2==d)+") {\n                vec2 xValues = vec2(\n                  getX(batch, xF, xR, xC, "+f+"),\n                  getX(batch, xF, xR, xC, "+f+" + 1)\n                );\n                vec2 wValues = vec2(\n                  getW(wF, wR, wC, "+f+", d2),\n                  getW(wF, wR, wC, "+f+" + 1, d2)\n                );\n                dotProd += dot(xValues, wValues);\n              } else if ("+(3==d)+") {\n                vec3 xValues = vec3(\n                  getX(batch, xF, xR, xC, "+f+"),\n                  getX(batch, xF, xR, xC, "+f+" + 1),\n                  getX(batch, xF, xR, xC, "+f+" + 2)\n                );\n                vec3 wValues = vec3(\n                  getW(wF, wR, wC, "+f+", d2),\n                  getW(wF, wR, wC, "+f+" + 1, d2),\n                  getW(wF, wR, wC, "+f+" + 2, d2)\n                );\n                dotProd += dot(xValues, wValues);\n              }\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},mi=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        // TO DO(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    "},gi=function(t){this.variableNames=["x","W"],this.usesPackedTextures=!0,this.outputShape=t.outShape;for(var e=t.inHeight,n=t.inWidth,r=t.padInfo.top,o=t.padInfo.left,i=t.strideHeight,a=t.strideWidth,s=t.dilationHeight,u=t.dilationWidth,c=t.filterHeight,l=t.filterWidth,h=l,p="int xR; int xC; int xCOffset;",f=0;f<c;f++)for(var d=0;d<l;d++)p+="\n          vec4 xTexelR"+f+"C"+2*d+" = vec4(0.);\n          vec4 wR"+f+"C"+d+" = vec4(0.);\n          vec4 xR"+f+"C"+d+" = vec4(0.);";for(f=0;f<c;f++)for(var v=0;v<h;v++){if(p+="\n          xR = xRCorner + "+f*s+";\n          xC = xCCorner + "+(d=2*v)*u+";\n        ",1===a){if(d<l&&(p+=o%2==1?"\n                xCOffset = xC + 1;\n                if(xR >= 0 && xR < "+e+" && xCOffset >= 0 && xCOffset < "+n+") {\n                  xTexelR"+f+"C"+d+" = getX(batch, xR, xCOffset, d1);\n                } else {\n                  xTexelR"+f+"C"+d+" = vec4(0.);\n                }\n\n                xCOffset = xC + 1 - 2;\n                if(xR >= 0 && xR < "+e+" && xCOffset >= 0 && xCOffset < "+n+") {\n                  vec4 previous = getX(batch, xR, xCOffset, d1);\n                  xR"+f+"C"+d+" = vec4(previous.zw, xTexelR"+f+"C"+d+".xy);\n                } else {\n                  xR"+f+"C"+d+" = vec4(0, 0, xTexelR"+f+"C"+d+".xy);\n                }\n              ":"\n                if(xR >= 0 && xR < "+e+" && xC >= 0 && xC < "+n+") {\n                  xTexelR"+f+"C"+d+" = getX(batch, xR, xC, d1);\n                } else {\n                  xTexelR"+f+"C"+d+" = vec4(0.);\n                }\n\n                xR"+f+"C"+d+" = xTexelR"+f+"C"+d+";\n              ",d+1<l)){var m=o%2==0?g(u):u;u%2==0&&o%2==1||u%2!=0&&o%2!=1?(p+="\n                  xCOffset = xC + "+o%2+" + "+m+";\n\n                  if(xR >= 0 && xR < "+e+" &&\n                    xCOffset >= 0 && xCOffset < "+n+") {\n                    xTexelR"+f+"C"+(d+2)+" = getX(batch, xR, xCOffset, d1);\n                  }\n                ",1<u&&(p+="\n                    xCOffset -= 2;\n                    if(xR >= 0 && xR < "+e+" &&\n                      xCOffset >= 0 && xCOffset < "+n+") {\n                      xTexelR"+f+"C"+d+" = getX(batch, xR, xCOffset, d1);\n                    } else {\n                      xTexelR"+f+"C"+d+" = vec4(0.);\n                    }\n                  "),p+="\n                  xR"+f+"C"+(d+1)+" = vec4(\n                    xTexelR"+f+"C"+d+".zw, xTexelR"+f+"C"+(d+2)+".xy);\n                "):p+="\n                  xCOffset = xC + "+m+";\n\n                  if(xR >= 0 && xR < "+e+" &&\n                    xCOffset >= 0 && xCOffset < "+n+") {\n                    xTexelR"+f+"C"+(d+2)+" = getX(batch, xR, xCOffset, d1);\n                  }\n\n                  xR"+f+"C"+(d+1)+" = xTexelR"+f+"C"+(d+2)+";\n                "}}else d<l&&(p+="\n              if(xR >= 0 && xR < "+e+") {\n            ",o%2==1?(p+="\n                xCOffset = xC + 1 - "+a+";\n                if(xCOffset >= 0 && xCOffset < "+n+") {\n                  xTexelR"+f+"C"+d+" = getX(batch, xR, xCOffset, d1);\n                } else {\n                  xTexelR"+f+"C"+d+" = vec4(0.);\n                }\n\n                if(xC + 1 >= 0 && xC + 1 < "+n+") {\n                  xTexelR"+f+"C"+(d+2)+" = getX(batch, xR, xC + 1, d1);\n                } else {\n                  xTexelR"+f+"C"+(d+2)+" = vec4(0.);\n                }\n\n                xR"+f+"C"+d+" = vec4(\n                  xTexelR"+f+"C"+d+".zw, xTexelR"+f+"C"+(d+2)+".zw);\n              ",d+1<l&&(p+="\n                  vec4 final = vec4(0.);\n                  xCOffset = xC + 1 + "+a+";\n                  if(xCOffset >= 0 && xCOffset < "+n+") {\n                    final = getX(batch, xR, xCOffset, d1);\n                  }\n                  xR"+f+"C"+(d+1)+" = vec4(xTexelR"+f+"C"+(d+2)+".xy, final.xy);\n                ")):(p+="\n                if(xC >= 0 && xC < "+n+") {\n                  xTexelR"+f+"C"+d+" = getX(batch, xR, xC, d1);\n                } else {\n                  xTexelR"+f+"C"+d+" = vec4(0.);\n                }\n\n                xCOffset = xC + "+a+";\n                if(xCOffset >= 0 && xCOffset < "+n+") {\n                  xTexelR"+f+"C"+(d+2)+" = getX(batch, xR, xCOffset, d1);\n                } else {\n                  xTexelR"+f+"C"+(d+2)+" = vec4(0.);\n                }\n\n                xR"+f+"C"+d+" = vec4(\n                  xTexelR"+f+"C"+d+".xy, xTexelR"+f+"C"+(d+2)+".xy);\n              ",d+1<l&&(p+="\n                  xR"+f+"C"+(d+1)+" = vec4(\n                    xTexelR"+f+"C"+d+".zw, xTexelR"+f+"C"+(d+2)+".zw);\n                ")),p+="}");d<l&&(p+="\n            vec4 wTexelR"+f+"C"+d+" = getW("+f+", "+d+", d1, q);\n            wR"+f+"C"+d+" = vec4(wTexelR"+f+"C"+d+".xz, wTexelR"+f+"C"+d+".xz);\n          ",d+1<l&&(p+="\n              vec4 wTexelR"+f+"C"+(d+1)+" = getW("+f+", "+(d+1)+", d1, q);\n              wR"+f+"C"+(d+1)+" =\n                vec4(wTexelR"+f+"C"+(d+1)+".xz, wTexelR"+f+"C"+(d+1)+".xz);"))}for(f=0;f<c;f++)for(d=0;d<l;d++)p+="result += xR"+f+"C"+d+" * wR"+f+"C"+d+";";this.userCode="\n      const ivec2 strides = ivec2("+i+", "+a+");\n      const ivec2 pads = ivec2("+r+", "+o+");\n\n      void main() {\n\n        ivec4 coords = getOutputCoords();\n        int batch = coords.x;\n        ivec2 xRCCorner = coords.yz * strides - pads;\n        int d2 = coords.w;\n        int d1 = d2;\n        int q = 0;\n        int xRCorner = xRCCorner.x;\n        int xCCorner = xRCCorner.y;\n\n        vec4 result = vec4(0.);\n\n        "+p+"\n\n        setOutput(result);\n      }\n    "},yi=function(t,e,n,r,o){this.variableNames=["Image","Boxes","BoxInd"],this.outputShape=[];var i=t[0],a=t[1],s=t[2],u=t[3],c=e[0],l=n[0],h=n[1];this.outputShape=[c,l,h,u];var p="bilinear"===r?1:0,f=[a-1+".0",s-1+".0"],d=f[0],v=f[1],m=1<l?[""+(a-1)/(l-1),"(y2-y1) * height_ratio","y1*"+d+" + float(y)*(height_scale)"]:["0.0","0.0","0.5 * (y1+y2) * "+d],g=m[0],y=m[1],x=m[2],b=1<h?[""+(s-1)/(h-1),"(x2-x1) * width_ratio","x1*"+v+" + float(x)*(width_scale)"]:["0.0","0.0","0.5 * (x1+x2) * "+v],w=b[0],C=b[1],E=b[2];this.userCode="\n      const float height_ratio = float("+g+");\n      const float width_ratio = float("+w+");\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int y = coords[1];\n        int x = coords[2];\n        int d = coords[3];\n\n        // get box vals\n        float y1 = getBoxes(b,0);\n        float x1 = getBoxes(b,1);\n        float y2 = getBoxes(b,2);\n        float x2 = getBoxes(b,3);\n\n        // get image in batch index\n        int bInd = round(getBoxInd(b));\n        if(bInd < 0 || bInd >= "+i+") {\n          return;\n        }\n\n        float height_scale = "+y+";\n        float width_scale = "+C+";\n\n        float in_y = "+x+";\n        if( in_y < 0.0 || in_y > "+d+" ) {\n          setOutput(float("+o+"));\n          return;\n        }\n        float in_x = "+E+";\n        if( in_x < 0.0 || in_x > "+v+" ) {\n          setOutput(float("+o+"));\n          return;\n        }\n\n        vec2 sourceFracIndexCR = vec2(in_x,in_y);\n        if("+p+" == 1) {\n          // Compute the four integer indices.\n          ivec2 sourceFloorCR = ivec2(sourceFracIndexCR);\n          ivec2 sourceCeilCR = ivec2(ceil(sourceFracIndexCR));\n\n          float topLeft = getImage(b, sourceFloorCR.y, sourceFloorCR.x, d);\n          float bottomLeft = getImage(b, sourceCeilCR.y, sourceFloorCR.x, d);\n          float topRight = getImage(b, sourceFloorCR.y, sourceCeilCR.x, d);\n          float bottomRight = getImage(b, sourceCeilCR.y, sourceCeilCR.x, d);\n\n          vec2 fracCR = sourceFracIndexCR - vec2(sourceFloorCR);\n\n          float top = topLeft + (topRight - topLeft) * fracCR.x;\n          float bottom = bottomLeft + (bottomRight - bottomLeft) * fracCR.x;\n          float newValue = top + (bottom - top) * fracCR.y;\n          setOutput(newValue);\n        } else {\n          // Compute the coordinators of nearest neighbor point.\n          ivec2 sourceNearestCR = ivec2(floor(\n            sourceFracIndexCR + vec2(0.5,0.5)));\n          float newValue = getImage(b, sourceNearestCR.y, sourceNearestCR.x, d);\n          setOutput(newValue);\n        }\n      }\n    "},xi=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        "+Uo(r)+" coords = getOutputCoords();\n        int end = "+Ci(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          "+Ci(r,"coords")+" = idx;\n          val += getX("+function(t,e){if(1===r)return e;if(2===r)return e+".x, "+e+".y";if(3===r)return"coords.x, coords.y, coords.z";if(4===r)return"coords.x, coords.y, coords.z, coords.w";throw Error("Cumulative sum for rank "+r+" is not yet supported")}(0,"coords")+");\n        }\n        setOutput(val);\n      }\n    "};function bi(t){this.variableNames=["A"],this.usesPackedTextures=!0,this.outputShape=t,this.userCode="\n      uniform float minVal;\n      uniform float maxVal;\n\n      void main() {\n        vec4 value = getAAtOutCoords();\n\n        if (any(isnan(value))) {\n          setOutput(value);\n          return;\n        }\n\n        setOutput(clamp(value, vec4(minVal), vec4(maxVal)));\n      }\n    "}function wi(t){this.variableNames=["A"],this.outputShape=t,this.userCode="\n      uniform float minVal;\n      uniform float maxVal;\n\n      void main() {\n        float value = getAAtOutCoords();\n        if (isnan(value)) {\n          setOutput(value);\n          return;\n        }\n\n        setOutput(clamp(value, minVal, maxVal));\n      }\n    "}function Ci(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 Ei=function(t,e){this.variableNames=["A"];var n=Mo();this.outputShape=t,this.userCode="\n      ivec3 outCoordsFromFlatIndex(int index) {\n        "+Po(["r","c","d"],t)+"\n        return ivec3(r, c, d);\n      }\n\n      void main() {\n        ivec2 resTexRC = ivec2(resultUV.yx *\n          vec2("+e[0]+", "+e[1]+"));\n        int index = 4 * (resTexRC.x * "+e[1]+" + resTexRC.y);\n\n        vec4 result = vec4(0.);\n\n        for (int i=0; i<4; i++) {\n          int flatIndex = index + i;\n          ivec3 rc = outCoordsFromFlatIndex(flatIndex);\n          result[i] = getA(rc.x, rc.y, rc.z);\n        }\n\n        "+n.output+" = result;\n      }\n    "},_i=function(t,e){this.variableNames=["A"],this.usesPackedTextures=!0;var n=Mo();this.outputShape=t,this.userCode="\n      ivec3 outCoordsFromFlatIndex(int index) {\n        "+Po(["r","c","d"],t)+"\n        return ivec3(r, c, d);\n      }\n\n      void main() {\n        ivec2 resTexRC = ivec2(resultUV.yx *\n          vec2("+e[0]+", "+e[1]+"));\n        int index = 4 * (resTexRC.x * "+e[1]+" + resTexRC.y);\n\n        vec4 result = vec4(0.);\n\n        for (int i=0; i<4; i++) {\n          int flatIndex = index + i;\n          ivec3 rc = outCoordsFromFlatIndex(flatIndex);\n          result[i] = getChannel(getA(rc.x, rc.y, rc.z), vec2(rc.y, rc.z));\n        }\n\n        "+n.output+" = result;\n      }\n    "},Ri=(Bi.prototype.getHeightCoordString=function(){return"NHWC"===this.dataFormat?"coords[1]":"coords[2]"},Bi.prototype.getWidthCoordString=function(){return"NHWC"===this.dataFormat?"coords[2]":"coords[3]"},Bi.prototype.getDepthCoordString=function(){return"NHWC"===this.dataFormat?"coords[3]":"coords[1]"},Bi.prototype.getOutputDepthSize=function(){return"NHWC"===this.dataFormat?this.outputShape[3]:this.outputShape[1]},Bi.prototype.getInputSamplingString=function(){return"NHWC"===this.dataFormat?"getX(b, in_h, in_w, in_d)":"getX(b, in_d, in_h, in_w)"},Bi),Ii=function(t){this.variableNames=["X"],this.outputShape=[t,t],this.userCode="\n      void main() {\n          ivec2 coords = getOutputCoords();\n          float val = coords[0] == coords[1] ? getX(coords[0]) : 0.0;\n          setOutput(val);\n      }\n    "},Si=function(t){this.variableNames=["A"];var e=Mo();this.outputShape=t,this.userCode="\n      "+Bo+"\n\n      void main() {\n        float x = getAAtOutCoords();\n        "+e.output+" = encode_float(x);\n      }\n    "},ki=function(t){this.variableNames=["A"],this.usesPackedTextures=!0;var e=Mo();this.outputShape=t,this.userCode="\n      "+Bo+"\n\n      void main() {\n        ivec3 coords = getOutputCoords();\n        float x = getChannel(getAAtOutCoords(), vec2(coords.y, coords.z));\n        "+e.output+" = encode_float(x);\n      }\n    "},Ni=function(t,e,n){void 0===n&&(n=!1),this.variableNames=["A"];var r=Mo(),o=e[0],i=e[1];this.outputShape=t;var a="result";n&&(a="floor(result * 255. + 0.5)"),this.userCode="\n      "+Oo(t)+"\n\n      void main() {\n        ivec3 coords = getOutputCoords();\n\n        int flatIndex = getFlatIndex(coords);\n        int offset = imod(flatIndex, 4);\n\n        flatIndex = idiv(flatIndex, 4, 1.);\n        \n        int r = flatIndex / "+i+";\n        int c = imod(flatIndex, "+i+");\n        vec2 uv = (vec2(c, r) + halfCR) / vec2("+i+".0, "+o+".0);\n        vec4 values = "+r.texture2D+"(A, uv);\n\n        float result;\n\n        if(offset == 0) {\n          result = values[0];\n        } else if(offset == 1) {\n          result = values[1];\n        } else if(offset == 2) {\n          result = values[2];\n        } else {\n          result = values[3];\n        }\n\n        "+r.output+" = vec4("+a+", 0., 0., 0.);\n      }\n    "},Ai=function(t,e,n){void 0===n&&(n=!1),this.variableNames=["A"];var r=Mo(),o=e[0],i=e[1];this.outputShape=t;var a="",s="result";n&&(s="floor(result * 255. + 0.5)");for(var u=0;u<=1;u++)for(var c=0;c<=1;c++){var l=2*u+c;a+="\n          localCoords = coords;\n          if(localCoords[2] + "+c+" < "+t[2]+") {\n            localCoords[2] += "+c+";\n            if(localCoords[1] + "+u+" < "+t[1]+") {\n              localCoords[1] += "+u+";\n\n              flatIndex = getFlatIndex(localCoords);\n              offset = imod(flatIndex, 4);\n    \n              flatIndex = idiv(flatIndex, 4, 1.);\n\n              r = flatIndex / "+i+";\n              c = imod(flatIndex, "+i+");\n              uv = (vec2(c, r) + halfCR) / vec2("+i+".0, "+o+".0);\n              values = "+r.texture2D+"(A, uv);\n\n              if(offset == 0) {\n                result["+l+"] = values[0];\n              } else if(offset == 1) {\n                result["+l+"] = values[1];\n              } else if(offset == 2) {\n                result["+l+"] = values[2];\n              } else {\n                result["+l+"] = values[3];\n              }\n            }\n          }\n        "}this.userCode="\n      "+Oo(t)+"\n\n      void main() {\n        ivec3 coords = getOutputCoords();\n\n        vec4 result = vec4(0.);\n        int flatIndex, r, c, offset;\n        ivec3 localCoords;\n        vec2 uv;\n        vec4 values;\n        \n        "+a+"\n\n        "+r.output+" = "+s+";\n      }\n    "},Ti=function(t,e,n){this.variableNames=["real","imag"];var r=e[1];this.outputShape=e;var o=n?"2.0 * "+Math.PI:"-2.0 * "+Math.PI,i=n?r+".0":"1.0";this.userCode="\n      const float exponentMultiplier = "+o+";\n\n      float unaryOpComplex(float real, float expR, float imag, float expI) {\n        "+t+"\n      }\n\n      float mulMatDFT(int batch, int index) {\n        float indexRatio = float(index) / float("+r+");\n        float exponentMultiplierTimesIndexRatio =\n            exponentMultiplier * indexRatio;\n\n        float result = 0.0;\n\n        for (int i = 0; i < "+r+"; i++) {\n          // x = (-2|2 * PI / N) * index * i;\n          float x = exponentMultiplierTimesIndexRatio * float(i);\n          float expR = cos(x);\n          float expI = sin(x);\n          float real = getReal(batch, i);\n          float imag = getImag(batch, i);\n\n          result +=\n              unaryOpComplex(real, expR, imag, expI) / "+i+";\n        }\n\n        return result;\n      }\n\n      void main() {\n        ivec2 coords = getOutputCoords();\n        setOutput(mulMatDFT(coords[0], coords[1]));\n      }\n    "},Di=(Oi.prototype.getCustomSetupFunc=function(n){var r=this;return function(t,e){null==r.valueLoc&&(r.valueLoc=t.getUniformLocationNoThrow(e,"value")),t.gl.uniform1f(r.valueLoc,n)}},Oi),Fi=function(t){this.variableNames=["A"];var e=Mo(),n=t[0],r=t[1];this.outputShape=t,this.userCode="\n      void main() {\n        ivec3 coords = getOutputCoords();\n        int texR = coords[0];\n        int texC = coords[1];\n        int depth = coords[2];\n        vec2 uv = (vec2(texC, texR) + halfCR) / vec2("+r+".0, "+n+".0);\n\n        vec4 values = "+e.texture2D+"(A, uv);\n        float value;\n        if (depth == 0) {\n          value = values.r;\n        } else if (depth == 1) {\n          value = values.g;\n        } else if (depth == 2) {\n          value = values.b;\n        } else if (depth == 3) {\n          value = values.a;\n        }\n\n        setOutput(floor(value * 255.0 + 0.5));\n      }\n    "},Mi=function(t){this.variableNames=["A"];var e=Mo(),n=t[0],r=t[1];this.outputShape=t,this.userCode="\n      void main() {\n        ivec3 coords = getOutputCoords();\n        int texR = coords[0];\n        int texC = coords[1];\n        int depth = coords[2];\n\n        vec4 result = vec4(0.);\n\n        for(int row=0; row<=1; row++) {\n          for(int col=0; col<=1; col++) {\n            texC = coords[1] + row;\n            depth = coords[2] + col;\n\n            vec2 uv = (vec2(texC, texR) + halfCR) / vec2("+r+".0, "+n+".0);\n            vec4 values = "+e.texture2D+"(A, uv);\n            float value;\n            if (depth == 0) {\n              value = values.r;\n            } else if (depth == 1) {\n              value = values.g;\n            } else if (depth == 2) {\n              value = values.b;\n            } else if (depth == 3) {\n              value = values.a;\n            }\n\n            result[row * 2 + col] = floor(value * 255.0 + 0.5);\n          }\n        }\n\n        "+e.output+" = result;\n      }\n    "},Pi=function(t,e,n){this.variableNames=["A","indices"];var r=t.slice();r[n]=e,this.outputShape=r,this.rank=r.length;var o=Uo(this.rank),i=function(t,e){var n=t.length;if(4<n)throw Error("Gather for rank "+n+" is not yet supported");if(1===n)return"int(getIndices(resRC))";for(var r=["resRC.x","resRC.y","resRC.z","resRC.w"],o=[],i=0;i<t.length;i++)i===e?o.push("int(getIndices("+r[i]+"))"):o.push(""+r[i]);return o.join()}(t,n);this.userCode="\n      void main() {\n        "+o+" resRC = getOutputCoords();\n        setOutput(getA("+i+"));\n      }\n    "};function Oi(t,e){this.outputShape=[],this.variableNames=["x"],this.outputShape=t,this.userCode="\n      uniform float value;\n      void main() {\n        // Input can be obtained from uniform value.\n        setOutput(value);\n      }\n    "}function Bi(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  "}var Li=function(t,e,n){this.sliceDim=t,this.strides=e,this.variableNames=["x","indices"],this.outputShape=n;var r=Uo(e.length),o=Uo(n.length),i=1<this.sliceDim?"strides[j]":"strides";this.userCode="\n        "+r+" strides = "+r+"("+this.strides+");\n         void main() {\n          "+o+" coords = getOutputCoords();\n          int flattenIndex = 0;\n          for (int j = 0; j < "+this.sliceDim+"; j++) {\n            int index = round(getIndices(coords[0], j));\n            flattenIndex += index * "+i+";\n          }\n          setOutput(getX(flattenIndex, coords[1]));\n        }\n      "};function Wi(t,e){var n=Mo();return he(t,e,n.version+"\n    precision highp float;\n    "+n.attribute+" vec3 clipSpacePos;\n    "+n.attribute+" vec2 uv;\n    "+n.varyingVs+" vec2 resultUV;\n\n    void main() {\n      gl_Position = vec4(clipSpacePos, 1);\n      resultUV = uv;\n    }")}function zi(t,e){return xe(t,e,new Float32Array([-1,1,0,0,1,-1,-1,0,0,0,1,1,0,1,1,1,-1,0,1,0]))}function Ui(t,e){return be(t,e,new Uint16Array([0,1,2,2,1,3]))}function Vi(t,e,n,r,o,i,a){Ce(n,r);var s=we(t,e),u=t.TEXTURE_2D;return se(t,e,function(){return t.bindTexture(u,s)}),se(t,e,function(){return t.texParameteri(u,t.TEXTURE_WRAP_S,t.CLAMP_TO_EDGE)}),se(t,e,function(){return t.texParameteri(u,t.TEXTURE_WRAP_T,t.CLAMP_TO_EDGE)}),se(t,e,function(){return t.texParameteri(u,t.TEXTURE_MIN_FILTER,t.NEAREST)}),se(t,e,function(){return t.texParameteri(u,t.TEXTURE_MAG_FILTER,t.NEAREST)}),se(t,e,function(){return t.texImage2D(u,0,o,n,r,0,i,a,null)}),se(t,e,function(){return t.bindTexture(t.TEXTURE_2D,null)}),s}function Gi(t,e,n,r,o){var i=re(n,r);return Vi(t,e,i[0],i[1],o.internalFormatFloat,o.textureFormatFloat,t.FLOAT)}function Hi(t,e,n,r,o){var i=re(n,r);return Vi(t,e,i[0],i[1],o.internalFormatHalfFloat,o.textureFormatFloat,o.textureTypeHalfFloat)}function ji(t,e,n,r,o){var i=re(n,r);return Vi(t,e,i[0],i[1],t.RGBA,t.RGBA,t.UNSIGNED_BYTE)}function qi(t,e,n,r,o){var i=ie(n,r);return Vi(t,e,i[0],i[1],o.internalFormatPackedFloat,t.RGBA,t.FLOAT)}function $i(t,e,n,r,o){var i=ie(n,r);return Vi(t,e,i[0],i[1],o.internalFormatPackedHalfFloat,t.RGBA,o.textureTypeHalfFloat)}function Ki(t,e,n,r){return se(t,e,function(){return t.bindBuffer(t.ARRAY_BUFFER,r)}),_e(t,e,n,"clipSpacePos",r,3,20,0)&&_e(t,e,n,"uv",r,2,20,12)}function Xi(t,e,n,r,o,i,a){var s,u,c;se(t,e,function(){return t.bindTexture(t.TEXTURE_2D,n)}),c=i instanceof Uint8Array?(s=new Uint8Array(r*o*4),u=t.UNSIGNED_BYTE,t.RGBA):(s=new Float32Array(r*o*4),u=t.FLOAT,a.internalFormatPackedFloat),s.set(i),se(t,e,function(){return t.texImage2D(t.TEXTURE_2D,0,c,r,o,0,t.RGBA,u,s)}),se(t,e,function(){return t.bindTexture(t.TEXTURE_2D,null)})}function Yi(t,e,n,r){se(t,e,function(){return t.bindTexture(t.TEXTURE_2D,n)}),r.data instanceof Uint8Array?se(t,e,function(){return t.texImage2D(t.TEXTURE_2D,0,t.RGBA,r.width,r.height,0,t.RGBA,t.UNSIGNED_BYTE,r.data)}):se(t,e,function(){return t.texImage2D(t.TEXTURE_2D,0,t.RGBA,t.RGBA,t.UNSIGNED_BYTE,r)}),se(t,e,function(){return t.bindTexture(t.TEXTURE_2D,null)})}function Ji(t,e,n,r,o){var i=t.createBuffer();se(t,e,function(){return t.bindBuffer(t.PIXEL_PACK_BUFFER,i)});var a=16*n*r;return se(t,e,function(){return t.bufferData(t.PIXEL_PACK_BUFFER,a,t.STREAM_READ)}),se(t,e,function(){return t.readPixels(0,0,r,n,t.RGBA,t.FLOAT,0)}),se(t,e,function(){return t.bindBuffer(t.PIXEL_PACK_BUFFER,null)}),i}function Qi(t,e,n){var r=t,o=new Float32Array(n);return r.bindBuffer(r.PIXEL_PACK_BUFFER,e),r.getBufferSubData(r.PIXEL_PACK_BUFFER,0,o),r.bindBuffer(r.PIXEL_PACK_BUFFER,null),o}function Zi(t,e,n,r,o){var i=re(n,r),a=i[0],s=i[1],u=new Uint8Array(n*r*4);return se(t,e,function(){return t.readPixels(0,0,a,s,o.downloadTextureFormat,t.UNSIGNED_BYTE,u)}),new Float32Array(u.buffer)}function ta(t,e,n,r,o,i,a,s){var u,c=t,l=new Float32Array((u=ie(i,a))[0]*u[1]*4);return c.bindBuffer(c.PIXEL_PACK_BUFFER,e),c.getBufferSubData(c.PIXEL_PACK_BUFFER,0,l),c.bindBuffer(c.PIXEL_PACK_BUFFER,null),l}function ea(t,e,n,r){var o=new Float32Array(n*r*4);return se(t,e,function(){return t.readPixels(0,0,r,n,t.RGBA,t.FLOAT,o)}),o}var na=Object.freeze({createVertexShader:Wi,createVertexBuffer:zi,createIndexBuffer:Ui,createFloat32MatrixTexture:Gi,createFloat16MatrixTexture:Hi,createUnsignedBytesMatrixTexture:ji,createPackedMatrixTexture:qi,createFloat16PackedMatrixTexture:$i,bindVertexProgramAttributeStreams:Ki,uploadDenseMatrixToTexture:Xi,uploadPixelDataToTexture:Yi,createBufferFromOutputTexture:Ji,downloadFloat32MatrixFromBuffer:Qi,downloadByteEncodedFloatMatrixFromOutputTexture:Zi,downloadPackedMatrixFromBuffer:ta,downloadMatrixFromPackedOutputTexture:ea}),ra=(Object.defineProperty(oa.prototype,"debug",{get:function(){return _.getBool("DEBUG")},enumerable:!0,configurable:!0}),oa.prototype.dispose=function(){var t=this;if(!this.disposed){null!=this.program&&console.warn("Disposing a GPGPUContext that still has a bound WebGLProgram. This is probably a resource leak, delete the program with GPGPUContext.deleteProgram before disposing."),null!=this.outputTexture&&console.warn("Disposing a GPGPUContext that still has a bound output matrix texture.  This is probably a resource leak, delete the output matrix texture with GPGPUContext.deleteMatrixTexture before disposing.");var e=this.gl;se(e,this.debug,function(){return e.finish()}),se(e,this.debug,function(){return e.bindFramebuffer(e.FRAMEBUFFER,null)}),se(e,this.debug,function(){return e.deleteFramebuffer(t.framebuffer)}),se(e,this.debug,function(){return e.bindBuffer(e.ARRAY_BUFFER,null)}),se(e,this.debug,function(){return e.bindBuffer(e.ELEMENT_ARRAY_BUFFER,null)}),se(e,this.debug,function(){return e.deleteBuffer(t.indexBuffer)}),this.disposed=!0}},oa.prototype.createFloat32MatrixTexture=function(t,e){return this.throwIfDisposed(),Gi(this.gl,this.debug,t,e,this.textureConfig)},oa.prototype.createFloat16MatrixTexture=function(t,e){return this.throwIfDisposed(),Hi(this.gl,this.debug,t,e,this.textureConfig)},oa.prototype.createUnsignedBytesMatrixTexture=function(t,e){return this.throwIfDisposed(),ji(this.gl,this.debug,t,e,this.textureConfig)},oa.prototype.uploadPixelDataToTexture=function(t,e){this.throwIfDisposed(),Yi(this.gl,this.debug,t,e)},oa.prototype.uploadDenseMatrixToTexture=function(t,e,n,r){this.throwIfDisposed(),Xi(this.gl,this.debug,t,e,n,r,this.textureConfig)},oa.prototype.createFloat16PackedMatrixTexture=function(t,e){return this.throwIfDisposed(),$i(this.gl,this.debug,t,e,this.textureConfig)},oa.prototype.createPackedMatrixTexture=function(t,e){return this.throwIfDisposed(),qi(this.gl,this.debug,t,e,this.textureConfig)},oa.prototype.deleteMatrixTexture=function(t){var e=this;this.throwIfDisposed(),this.outputTexture===t&&(Ae(this.gl,this.debug,this.framebuffer),this.outputTexture=null),se(this.gl,this.debug,function(){return e.gl.deleteTexture(t)})},oa.prototype.downloadByteEncodedFloatMatrixFromOutputTexture=function(t,e,n){var r=this;return this.downloadMatrixDriver(t,function(){return Zi(r.gl,r.debug,e,n,r.textureConfig)})},oa.prototype.downloadPackedMatrixFromBuffer=function(t,e,n,r,o,i){return ta(this.gl,t,0,0,0,o,i,this.textureConfig)},oa.prototype.downloadFloat32MatrixFromBuffer=function(t,e){return Qi(this.gl,t,e)},oa.prototype.createBufferFromTexture=function(t,e,n){this.bindTextureToFrameBuffer(t);var r=Ji(this.gl,this.debug,e,n,this.textureConfig);return this.unbindTextureToFrameBuffer(),r},oa.prototype.createAndWaitForFence=function(){var t=this.createFence(this.gl);return this.pollFence(t)},oa.prototype.createFence=function(t){var e,n,r=this;if(_.getBool("WEBGL_FENCE_API_ENABLED")){var o=t,i=o.fenceSync(o.SYNC_GPU_COMMANDS_COMPLETE,0);t.flush(),n=function(){var t=o.clientWaitSync(i,0,0);return t===o.ALREADY_SIGNALED||t===o.CONDITION_SATISFIED},e=i}else n=0<_.getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")?(e=this.beginQuery(),this.endQuery(),function(){return r.isQueryAvailable(e,_.getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))}):function(){return!0};return{query:e,isFencePassed:n}},oa.prototype.downloadMatrixFromPackedTexture=function(t,e,n){var r=this;return this.downloadMatrixDriver(t,function(){return ea(r.gl,r.debug,e,n)})},oa.prototype.createProgram=function(t){this.throwIfDisposed();var e=this.gl,n=pe(e,this.debug,t),r=Wi(e,this.debug),o=me(e,this.debug);return se(e,this.debug,function(){return e.attachShader(o,r)}),se(e,this.debug,function(){return e.attachShader(o,n)}),ge(e,this.debug,o),this.debug&&ye(e,this.debug,o),this.vertexAttrsAreBound||(this.setProgram(o),this.vertexAttrsAreBound=Ki(e,this.debug,this.program,this.vertexBuffer)),o},oa.prototype.deleteProgram=function(t){var e=this;this.throwIfDisposed(),t===this.program&&(this.program=null),null!=t&&se(this.gl,this.debug,function(){return e.gl.deleteProgram(t)})},oa.prototype.setProgram=function(t){var e=this;this.throwIfDisposed(),this.program=t,null!=this.program&&this.debug&&ye(this.gl,this.debug,this.program),se(this.gl,this.debug,function(){return e.gl.useProgram(t)})},oa.prototype.getUniformLocation=function(t,e,n){return void 0===n&&(n=!0),this.throwIfDisposed(),n?Ie(this.gl,this.debug,t,e):Se(this.gl,t,e)},oa.prototype.getAttributeLocation=function(t,e){var n=this;return this.throwIfDisposed(),se(this.gl,this.debug,function(){return n.gl.getAttribLocation(t,e)})},oa.prototype.getUniformLocationNoThrow=function(t,e){return this.throwIfDisposed(),this.gl.getUniformLocation(t,e)},oa.prototype.setInputMatrixTexture=function(t,e,n){this.throwIfDisposed(),this.throwIfNoProgram(),ke(this.gl,this.debug,this.program,t,e,n)},oa.prototype.setOutputMatrixTexture=function(t,e,n){this.setOutputMatrixTextureDriver(t,n,e)},oa.prototype.setOutputPackedMatrixTexture=function(t,e,n){this.throwIfDisposed();var r=ie(e,n),o=r[0],i=r[1];this.setOutputMatrixTextureDriver(t,o,i)},oa.prototype.setOutputMatrixWriteRegion=function(t,e,n,r){this.setOutputMatrixWriteRegionDriver(n,t,r,e)},oa.prototype.setOutputPackedMatrixWriteRegion=function(t,e,n,r){throw new Error("setOutputPackedMatrixWriteRegion not implemented.")},oa.prototype.debugValidate=function(){null!=this.program&&ye(this.gl,this.debug,this.program),Te(this.gl)},oa.prototype.executeProgram=function(){this.throwIfDisposed(),this.throwIfNoProgram();var t=this.gl;this.debug&&this.debugValidate(),se(t,this.debug,function(){return t.drawElements(t.TRIANGLES,6,t.UNSIGNED_SHORT,0)})},oa.prototype.blockUntilAllProgramsCompleted=function(){var t=this;this.throwIfDisposed(),se(this.gl,this.debug,function(){return t.gl.finish()})},oa.prototype.getQueryTimerExtension=function(){return null==this.disjointQueryTimerExtension&&(this.disjointQueryTimerExtension=le(this.gl,this.debug,2===_.getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")?"EXT_disjoint_timer_query_webgl2":"EXT_disjoint_timer_query")),this.disjointQueryTimerExtension},oa.prototype.getQueryTimerExtensionWebGL2=function(){return this.getQueryTimerExtension()},oa.prototype.getQueryTimerExtensionWebGL1=function(){return this.getQueryTimerExtension()},oa.prototype.beginQuery=function(){if(2===_.getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")){var t=this.gl,e=this.getQueryTimerExtensionWebGL2(),n=t.createQuery();return t.beginQuery(e.TIME_ELAPSED_EXT,n),n}var r=this.getQueryTimerExtensionWebGL1(),o=r.createQueryEXT();return r.beginQueryEXT(r.TIME_ELAPSED_EXT,o),o},oa.prototype.endQuery=function(){if(2!==_.getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")){var t=this.getQueryTimerExtensionWebGL1();t.endQueryEXT(t.TIME_ELAPSED_EXT)}else{var e=this.gl,n=this.getQueryTimerExtensionWebGL2();e.endQuery(n.TIME_ELAPSED_EXT)}},oa.prototype.waitForQueryAndGetTime=function(n){return y(this,void 0,void 0,function(){var e=this;return I(this,function(t){switch(t.label){case 0:return[4,E(function(){return e.disposed||e.isQueryAvailable(n,_.getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))})];case 1:return t.sent(),[2,this.getQueryTime(n,_.getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))]}})})},oa.prototype.getQueryTime=function(t,e){if(0===e)return null;if(2===e){var n=this.gl;return n.getQueryParameter(t,n.QUERY_RESULT)/1e6}var r=this.getQueryTimerExtensionWebGL1();return r.getQueryObjectEXT(t,r.QUERY_RESULT_EXT)/1e6},oa.prototype.isQueryAvailable=function(t,e){if(0===e)return!0;if(2!==e)return o=(r=this.getQueryTimerExtensionWebGL1()).getQueryObjectEXT(t,r.QUERY_RESULT_AVAILABLE_EXT),null==this.disjoint&&(this.disjoint=this.gl.getParameter(r.GPU_DISJOINT_EXT)),o&&!this.disjoint;var n=this.gl,r=this.getQueryTimerExtensionWebGL2(),o=n.getQueryParameter(t,n.QUERY_RESULT_AVAILABLE);return null==this.disjoint&&(this.disjoint=this.gl.getParameter(r.GPU_DISJOINT_EXT)),o&&!this.disjoint},oa.prototype.pollFence=function(e){var n=this;return new Promise(function(t){n.addItemToPoll(function(){return e.isFencePassed()},function(){return t()})})},oa.prototype.pollItems=function(){for(var t=function(t){for(var e=0;e<t.length&&t[e]();++e);return e-1}(this.itemsToPoll.map(function(t){return t.isDoneFn})),e=0;e<=t;++e)(0,this.itemsToPoll[e].resolveFn)();this.itemsToPoll=this.itemsToPoll.slice(t+1)},oa.prototype.addItemToPoll=function(t,e){var n=this;this.itemsToPoll.push({isDoneFn:t,resolveFn:e}),1<this.itemsToPoll.length||E(function(){return n.pollItems(),0===n.itemsToPoll.length})},oa.prototype.bindTextureToFrameBuffer=function(t){this.throwIfDisposed(),Ne(this.gl,this.debug,t,this.framebuffer),this.debug&&Te(this.gl)},oa.prototype.unbindTextureToFrameBuffer=function(){null!=this.outputTexture?(Ne(this.gl,this.debug,this.outputTexture,this.framebuffer),this.debug&&Te(this.gl)):Ae(this.gl,this.debug,this.framebuffer)},oa.prototype.downloadMatrixDriver=function(t,e){this.bindTextureToFrameBuffer(t);var n=e();return this.unbindTextureToFrameBuffer(),n},oa.prototype.setOutputMatrixTextureDriver=function(t,e,n){this.throwIfDisposed();var r=this.gl;Ne(r,this.debug,t,this.framebuffer),this.debug&&Te(r),this.outputTexture=t,se(r,this.debug,function(){return r.viewport(0,0,e,n)}),se(r,this.debug,function(){return r.scissor(0,0,e,n)})},oa.prototype.setOutputMatrixWriteRegionDriver=function(t,e,n,r){var o=this;this.throwIfDisposed(),se(this.gl,this.debug,function(){return o.gl.scissor(t,e,n,r)})},oa.prototype.throwIfDisposed=function(){if(this.disposed)throw new Error("Attempted to use disposed GPGPUContext.")},oa.prototype.throwIfNoProgram=function(){if(null==this.program)throw new Error("No GPU program is currently set.")},oa);function oa(t){this.outputTexture=null,this.program=null,this.disposed=!1,this.vertexAttrsAreBound=!1,this.itemsToPoll=[];var e=_.getNumber("WEBGL_VERSION");if(null!=t?te(e,this.gl=t):this.gl=ee(e),1===_.getNumber("WEBGL_VERSION"))this.textureFloatExtension=le(this.gl,this.debug,"OES_texture_float"),this.colorBufferFloatExtension=this.gl.getExtension("WEBGL_color_buffer_float"),this.textureHalfFloatExtension=le(this.gl,this.debug,"OES_texture_half_float"),this.colorBufferHalfFloatExtension=this.gl.getExtension("EXT_color_buffer_half_float");else if(He(this.gl,"EXT_color_buffer_float"))this.colorBufferFloatExtension=this.gl.getExtension("EXT_color_buffer_float");else{if(!He(this.gl,"EXT_color_buffer_half_float"))throw new Error("GL context does not support color renderable floats");this.colorBufferHalfFloatExtension=this.gl.getExtension("EXT_color_buffer_half_float")}this.vertexBuffer=zi(this.gl,this.debug),this.indexBuffer=Ui(this.gl,this.debug),this.framebuffer=Ee(this.gl,this.debug),this.textureConfig=ae(this.gl,this.textureHalfFloatExtension)}function ia(t,s){if(t.length!==s.length)throw Error("Binary was compiled with "+t.length+" inputs, but was executed with "+s.length+" inputs");t.forEach(function(t,e){var n=t.logicalShape,r=s[e],o=r.shape;if(!k(n,o))throw Error("Binary was compiled with different shapes than the current args. Shapes "+n+" and "+o+" must match");if(!t.isUniform||!r.isUniform){var i=t.texShape,a=r.isUniform?null:r.texData.texShape;if(!k(i,a))throw Error("Binary was compiled with different texture shapes than the current args. Shape "+i+" and "+a+" must match")}})}var aa=function(t,e,n){this.variableNames=["A"],this.usesPackedTextures=!0,this.outputShape=t;for(var r=n.filterWidth,o=n.inChannels,i=n.strideWidth,a=n.strideHeight,s=n.padInfo,u=n.outWidth,c=n.dilationWidth,l=n.dilationHeight,h=n.dataFormat,p=s.left,f=s.top,d=o*r,v=Mo(),m="channelsLast"===h,g=m?0:1,y=m?1:2,x="",b=0;b<=1;b++)for(var w=0;w<=1;w++)x+="\n          blockIndex = rc.y + "+w+";\n          pos = rc.x + "+b+";\n\n          if(blockIndex < "+t[1]+" && pos < "+t[0]+") {\n            offsetY = int(blockIndex / ("+u+")) * "+a+" - "+f+";\n            d0 = offsetY + "+l+" * (pos / "+d+");\n\n            if(d0 < "+e[g]+" && d0 >= 0) {\n\n              offsetX = int(mod(float(blockIndex), "+u+".) * "+i+". - "+p+".);\n              d1 = offsetX + "+c+" * (int(mod(float(pos), "+d+".) / "+o+".));\n\n              if(d1 < "+e[y]+" && d1 >= 0) {\n\n                ch = int(mod(float(pos), "+o+".));\n\n                if ("+m+") {\n                  innerDims = vec2(d1, ch);\n                  result["+(2*b+w)+"] = getChannel(\n                    getA(d0, int(innerDims.x),\n                    int(innerDims.y)), innerDims);\n                } else {\n                  innerDims = vec2(d0, d1);\n                  result["+(2*b+w)+"] = getChannel(\n                    getA(ch, int(innerDims.x),\n                    int(innerDims.y)), innerDims);\n                }\n              }\n            }\n          }\n        ";this.userCode="\n      void main() {\n        ivec2 rc = getOutputCoords();\n\n        vec4 result = vec4(0);\n\n        int blockIndex, pos, offsetY, d0, offsetX, d1, ch;\n        vec2 innerDims;\n\n        "+x+"\n\n        "+v.output+" = result;\n      }\n    "},sa=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    "},ua=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    "},ca=function(t,e,n,r,o){this.variableNames=["x"],this.outputShape=[],this.usesPackedTextures=!0;var i,a=e,s=t[3]-1;this.outputShape=t;var u="float("+n+") + float("+r+") * sum";i=.5===o?"inversesqrt("+u+")":1===o?"1.0/("+u+")":"exp(log("+u+") * float(-"+o+"));",this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords.x;\n        int r = coords.y;\n        int c = coords.z;\n        int d = coords.w;\n\n        bool hasNextCol = d < "+this.outputShape[3]+";\n        bool hasNextRow = c < "+this.outputShape[2]+";\n\n        vec4 sum = vec4(0.);\n        vec4 xFragAtOutputCoords = getX(b, r, c, d);\n\n        vec4 xAtOutputCoords = vec4(\n          getChannel(xFragAtOutputCoords, vec2(c, d)),\n          hasNextCol ?\n            getChannel(xFragAtOutputCoords, vec2(c, d + 1)) : 0.0,\n          hasNextRow ?\n            getChannel(xFragAtOutputCoords , vec2(c + 1, d)) : 0.0,\n          (hasNextRow && hasNextCol) ?\n            getChannel(xFragAtOutputCoords, vec2(c + 1, d + 1)) : 0.0\n        );\n\n        int firstChannel = d - "+a+";\n        vec2 cache = vec2(0.);\n        if(firstChannel >= 0){\n          vec4 firstChannelFrag = getX(b, r, c, firstChannel);\n          cache.x = getChannel(firstChannelFrag, vec2(c, firstChannel));\n            if(hasNextRow){\n              cache.y = getChannel(firstChannelFrag, vec2(c + 1, firstChannel));\n            }\n        }\n\n        ivec2 depth = ivec2(d, d + 1);\n        for (int j = - "+a+"; j <= "+a+"; j++) {\n          ivec2 idx = depth + j;\n          bvec2 aboveLowerBound = greaterThanEqual(idx, ivec2(0));\n          bvec2 belowUpperBound = lessThanEqual(idx, ivec2("+s+"));\n\n          bool depthInRange = aboveLowerBound.x && belowUpperBound.x;\n          bool depthPlusOneInRange = aboveLowerBound.y && belowUpperBound.y;\n\n          if(depthInRange || depthPlusOneInRange){\n            vec4 z = vec4(0.);\n            vec4 xFragAtCurrentDepth;\n            z.xz = cache.xy;\n            if(depthPlusOneInRange && hasNextCol){\n              xFragAtCurrentDepth = idx.y != d ?\n                getX(b, r, c, idx.y) : xFragAtOutputCoords;\n              z.y = getChannel(xFragAtCurrentDepth, vec2(c, idx.y));\n              if(hasNextRow){\n                z.w = getChannel(xFragAtCurrentDepth, vec2(c + 1, idx.y));\n              }\n            }\n            cache.xy = z.yw;\n            sum += z * z;\n          }\n        }\n        vec4 result = xAtOutputCoords * "+i+";\n        setOutput(result);\n      }\n    "},la=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    "},ha=function(t){this.variableNames=["dy","maxPos"],this.outputShape=t.inShape;var e=t.strideDepth,n=t.strideHeight,r=t.strideWidth,o=t.dilationDepth,i=t.dilationHeight,a=t.dilationWidth,s=t.effectiveFilterDepth,u=t.effectiveFilterHeight,c=t.effectiveFilterWidth,l=s-1-t.padInfo.front,h=u-1-t.padInfo.top,p=c-1-t.padInfo.left,f=s*u*c-1;this.userCode="\n      const ivec3 pads = ivec3("+l+", "+h+", "+p+");\n\n      void main() {\n        ivec5 coords = getOutputCoords();\n        int batch = coords.x;\n        int ch = coords.u;\n\n        ivec3 dyCorner = ivec3(coords.y, coords.z, coords.w) - pads;\n        int dyDCorner = dyCorner.x;\n        int dyRCorner = dyCorner.y;\n        int dyCCorner = dyCorner.z;\n\n        // Convolve dy(?, ?, ?, ch) with pos mask(:, :, :, d) to get\n        // dx(xD, xR, xC, ch).\n        // ? = to be determined. : = across all values in that axis.\n        float dotProd = 0.0;\n\n        for (int wD = 0; wD < "+s+";\n           wD += "+o+") {\n          float dyD = float(dyDCorner + wD) / "+e+".0;\n\n          if (dyD < 0.0 || dyD >= "+t.outDepth+".0 || fract(dyD) > 0.0) {\n            continue;\n          }\n          int idyD = int(dyD);\n\n          for (int wR = 0; wR < "+u+";\n              wR += "+i+") {\n            float dyR = float(dyRCorner + wR) / "+n+".0;\n\n            if (dyR < 0.0 || dyR >= "+t.outHeight+".0 ||\n                fract(dyR) > 0.0) {\n              continue;\n            }\n            int idyR = int(dyR);\n\n            for (int wC = 0; wC < "+c+";\n                wC += "+a+") {\n              float dyC = float(dyCCorner + wC) / "+r+".0;\n\n              if (dyC < 0.0 || dyC >= "+t.outWidth+".0 ||\n                  fract(dyC) > 0.0) {\n                continue;\n              }\n              int idyC = int(dyC);\n\n              float dyValue = getDy(batch, idyD, idyR, idyC, ch);\n              int maxPosValue = "+f+" -\n                  int(getMaxPos(batch, idyD, idyR, idyC, ch));\n\n              // Get the current value, check it against the value from the\n              // position matrix.\n              int curPosValue =\n                  wD * "+u+" * "+c+" +\n                  wR * "+c+" + wC;\n              float mask = float(maxPosValue == curPosValue ? 1.0 : 0.0);\n\n              dotProd += dyValue * mask;\n            }\n          }\n        }\n        setOutput(dotProd);\n      }\n    "},pa=function(t,e,n,r,o,i,a){void 0===n&&(n=!1),void 0===r&&(r=!1),void 0===o&&(o=!1),void 0===i&&(i=null),void 0===a&&(a=!1),this.variableNames=["matrixA","matrixB"],this.usesPackedTextures=!0,this.outputShape=e;var s=n?t[1]:t[2],u=Math.ceil(s/2),c=n?"i * 2, rc.y":"rc.y, i * 2",l=r?"rc.z, i * 2":"i * 2, rc.z",h=n?["a.xxyy","a.zzww"]:["a.xxzz","a.yyww"],p=r?["b.xzxz","b.ywyw"]:["b.xyxy","b.zwzw"],f="",d="";i&&(f=a?"vec4 activation(vec4 a) {\n          vec4 b = getPreluActivationWeightsAtOutCoords();\n          "+i+"\n        }":"vec4 activation(vec4 x) {\n          "+i+"\n        }",d="result = activation(result);");var v=o?"result += getBiasAtOutCoords();":"";o&&this.variableNames.push("bias"),a&&this.variableNames.push("preluActivationWeights"),this.userCode="\n      "+f+"\n\n      const float sharedDimension = "+u+".0;\n\n      vec4 dot2x2ARowBCol(ivec3 rc) {\n        vec4 result = vec4(0);\n        for (int i = 0; i < "+u+"; i++) {\n          vec4 a = getMatrixA(rc.x, "+c+");\n          vec4 b = getMatrixB(rc.x, "+l+");\n\n          // These swizzled products need to be separately added.\n          // See: https://github.com/tensorflow/tfjs/issues/1735\n          result += ("+h[0]+" * "+p[0]+");\n          result += ("+h[1]+" * "+p[1]+");\n        }\n        return result;\n      }\n\n      void main() {\n        ivec3 rc = getOutputCoords();\n        vec4 result = dot2x2ARowBCol(rc);\n\n        "+v+"\n\n        "+d+"\n\n        setOutput(result);\n      }\n    "},fa=(ma.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)}},ma),da=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    "},va=function(t){this.variableNames=["A"];var e,n,r,o,i=(this.outputShape=t).length;if(0===i)this.userCode="\n        void main() {\n          setOutput(vec4(getA(), 0., 0., 0.));\n        }\n      ";else{var a=Fo("rc",i),s=Uo(i),u=function(t,e,n){if(1===t)return"rc > "+e[0];for(var r="",o=t-2;o<t;o++)r+=n[o]+" >= "+e[o],o<t-1&&(r+="||");return r}(i,t,a),c=function(t,e,n){if(1===t)return"";var r=a.slice(-2);return"\n    int r = "+r[0]+";\n    int c = "+r[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]),l=(n=a,r=(e=t).length,o=function(t,e){for(var n=[],r=0;r<=1;r++)for(var o=0;o<=1;o++){for(var i=(0===r?"r":"rp1")+", "+(0===o?"c":"cp1"),a=2;a<t;a++)i=e[e.length-1-a]+","+i;n.push(i)}return n}(r,n),1===r?"getA(rc),\n            rc + 1 >= "+e[0]+" ? 0. : getA(rc + 1),\n            0, 0":"getA("+o[0]+"),\n          cEdge ? 0. : getA("+o[1]+"),\n          rEdge ? 0. : getA("+o[2]+"),\n          rEdge || cEdge ? 0. : getA("+o[3]+")");this.userCode="\n        void main() {\n          "+s+" rc = getOutputCoords();\n\n          if("+u+") {\n            setOutput(vec4(0));\n          } else {\n            "+c+"\n\n            setOutput(vec4("+l+"));\n          }\n        }\n      "}};function ma(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    "}var ga=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=Uo(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      "},ya=function(n,t,e){this.variableNames=["x"],this.usesPackedTextures=!0,this.outputShape=t.map(function(t,e){return t[0]+n[e]+t[1]});for(var r=n.length,o=Uo(r),i=t.map(function(t){return t[0]}).join(","),a=t.map(function(t,e){return t[0]+n[e]}).join(","),s=Fo("rc",r),u=Fo("source",r),c=s[r-1]+" < "+this.outputShape[r-1],l=1===r?"source":"vec2("+u.slice(-2).join()+")",h=[o+" rc = outputLoc;",s[r-1]+" += 1;\n       if("+c+") {\n      ",1===r?"":"}\n       rc = outputLoc;\n       "+s[r-2]+" += 1;\n       if("+s[r-2]+" < "+this.outputShape[r-2]+") {",1===r?"":"  "+s[r-1]+" += 1;\n         if("+c+") {"],p=1===r?"rc < start || rc >= end":"any(lessThan(rc, start)) || any(greaterThanEqual(rc, end))",f="",d=0,v=1===r?2:4;d<v;d++)f+="\n        "+h[d]+"\n        if ("+p+") {\n          result["+d+"] = float("+e+");\n        } else {\n          "+o+" source = rc - start;\n          result["+d+"] = getChannel(getX("+u.join()+"), "+l+");\n        }\n      ";f+=1===r?"} ":"}}",this.userCode="\n      const "+o+" start = "+o+"("+i+");\n      const "+o+" end = "+o+"("+a+");\n\n      void main() {\n        "+o+" outputLoc = getOutputCoords();\n        vec4 result = vec4(0.);\n        "+f+"\n        setOutput(result);\n      }\n    "},xa=function(t,e,n){if(this.variableNames=["x"],"avg"===e&&n)throw new Error("Cannot compute positions for average pool.");var r=t.filterWidth,o=t.strideHeight,i=t.strideWidth,a=t.dilationHeight,s=t.dilationWidth,u=t.effectiveFilterHeight,c=t.effectiveFilterWidth,l=t.padInfo.top,h=t.padInfo.left;this.outputShape=t.outShape;var p="avg"===e,f="0.0";if(p||(f="-1.0 / 1e-20"),n)this.userCode="\n        const ivec2 strides = ivec2("+o+", "+i+");\n        const ivec2 pads = ivec2("+l+", "+h+");\n\n        void main() {\n          ivec4 coords = getOutputCoords();\n          int batch = coords[0];\n          int d = coords[3];\n\n          ivec2 xRCCorner = coords.yz * strides - pads;\n          int xRCorner = xRCCorner.x;\n          int xCCorner = xRCCorner.y;\n\n          // max/min x(?, ?, d) to get y(yR, yC, d).\n          // ? = to be determined\n          float minMaxValue = 0.0;\n          float minMaxValueFound = 0.0;\n          int minMaxPosition = 0;\n          float avgValue = 0.0;\n\n          for (int wR = 0; wR < "+u+";\n              wR += "+a+") {\n            int xR = xRCorner + wR;\n\n            if (xR < 0 || xR >= "+t.inHeight+") {\n              continue;\n            }\n\n            for (int wC = 0; wC < "+c+";\n                wC += "+s+") {\n              int xC = xCCorner + wC;\n\n              if (xC < 0 || xC >= "+t.inWidth+") {\n                continue;\n              }\n\n              float value = getX(batch, xR, xC, d);\n\n              // If a min / max value has already been found, use it. If not,\n              // use the current value.\n              float currMinMaxValue = mix(\n                  value, minMaxValue, minMaxValueFound);\n              if (value >= currMinMaxValue) {\n                minMaxValue = value;\n                minMaxValueFound = 1.0;\n                minMaxPosition = wR * "+c+" + wC;\n              }\n            }\n          }\n          setOutput(float(minMaxPosition));\n        }\n      ";else{var d=e+"("+e+"("+e+"(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])";"avg"===e&&(d="avgValue / count");var v=4*Math.floor(r/4),m=r%4,g="\n      if ("+p+") {\n        avgValue += dot(values, ones);\n      } else {\n        minMaxValue = max(values, minMaxValue);\n      }\n    ";this.userCode="\n      const ivec2 strides = ivec2("+o+", "+i+");\n      const ivec2 pads = ivec2("+l+", "+h+");\n      const float initializationValue = "+f+";\n      const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0);\n\n      float count = 0.0;\n\n      float getValue(int batch, int xR, int xC, int d) {\n        if (xC < 0 || xC >= "+t.inWidth+") {\n          return initializationValue;\n        }\n        count += 1.0;\n        return getX(batch, xR, xC, d);\n      }\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int batch = coords[0];\n        int d = coords[3];\n\n        ivec2 xRCCorner = coords.yz * strides - pads;\n        int xRCorner = xRCCorner.x;\n        int xCCorner = xRCCorner.y;\n\n        // max/min x(?, ?, d) to get y(yR, yC, d).\n        // ? = to be determined\n        vec4 minMaxValue = vec4("+f+");\n        float avgValue = 0.0;\n        count = 0.0;\n\n        for (int wR = 0; wR < "+u+";\n            wR += "+a+") {\n          int xR = xRCorner + wR;\n\n          if (xR < 0 || xR >= "+t.inHeight+") {\n            continue;\n          }\n\n          for (int wC = 0; wC < "+v+"; wC += 4) {\n            int xC = xCCorner + wC * "+s+";\n\n            vec4 values = vec4(\n              getValue(batch, xR, xC, d),\n              getValue(batch, xR, xC + "+s+", d),\n              getValue(batch, xR, xC + 2 * "+s+", d),\n              getValue(batch, xR, xC + 3 * "+s+", d)\n            );\n\n            "+g+"\n          }\n\n          int xC = xCCorner + "+v+";\n          if ("+(1==m)+") {\n            vec4 values = vec4(\n              getValue(batch, xR, xC, d),\n              initializationValue,\n              initializationValue,\n              initializationValue\n            );\n\n            "+g+"\n          } else if ("+(2==m)+") {\n            vec4 values = vec4(\n              getValue(batch, xR, xC, d),\n              getValue(batch, xR, xC + "+s+", d),\n              initializationValue,\n              initializationValue\n            );\n\n            "+g+"\n          } else if ("+(3==m)+") {\n            vec4 values = vec4(\n              getValue(batch, xR, xC, d),\n              getValue(batch, xR, xC + "+s+", d),\n              getValue(batch, xR, xC + 2 * "+s+", d),\n              initializationValue\n            );\n\n            "+g+"\n          }\n        }\n        setOutput("+d+");\n      }\n    "}},ba=function(t,e,n){if(this.variableNames=["x"],"avg"===e&&n)throw new Error("Cannot compute positions for average pool.");var r=t.filterWidth,o=t.strideDepth,i=t.strideHeight,a=t.strideWidth,s=t.dilationDepth,u=t.dilationHeight,c=t.dilationWidth,l=t.effectiveFilterDepth,h=t.effectiveFilterHeight,p=t.effectiveFilterWidth,f=t.padInfo.front,d=t.padInfo.top,v=t.padInfo.left;this.outputShape=t.outShape;var m="avg"===e,g="0.0";if(m||(g="-1.0 / 1e-20"),n)this.userCode="\n        const ivec3 strides =\n            ivec3("+o+", "+i+", "+a+");\n        const ivec3 pads = ivec3("+f+", "+d+", "+v+");\n\n        void main() {\n          ivec5 coords = getOutputCoords();\n          int batch = coords.x;\n          int ch = coords.u;\n\n          ivec3 xCorner = ivec3(coords.y, coords.z, coords.w) * strides - pads;\n          int xDCorner = xCorner.x;\n          int xRCorner = xCorner.y;\n          int xCCorner = xCorner.z;\n\n          // max/min x(?, ?, ?, ch) to get y(yD, yR, yC, ch).\n          // ? = to be determined\n          float minMaxValue = 0.0;\n          float minMaxValueFound = 0.0;\n          int minMaxPosition = 0;\n\n          for (int wD = 0; wD < "+l+";\n              wD += "+s+") {\n            int xD = xDCorner + wD;\n\n            if (xD < 0 || xD >= "+t.inDepth+") {\n              continue;\n            }\n\n            for (int wR = 0; wR < "+h+";\n                wR += "+u+") {\n              int xR = xRCorner + wR;\n\n              if (xR < 0 || xR >= "+t.inHeight+") {\n                continue;\n              }\n\n              for (int wC = 0; wC < "+p+";\n                  wC += "+c+") {\n                int xC = xCCorner + wC;\n\n                if (xC < 0 || xC >= "+t.inWidth+") {\n                  continue;\n                }\n\n                float value = getX(batch, xD, xR, xC, ch);\n\n                // If a min / max value has already been found, use it. If not,\n                // use the current value.\n                float currMinMaxValue = mix(\n                    value, minMaxValue, minMaxValueFound);\n                if (value >= currMinMaxValue) {\n                  minMaxValue = value;\n                  minMaxValueFound = 1.0;\n                  minMaxPosition =\n                      wD * "+h+" * "+p+" +\n                      wR * "+p+" + wC;;\n                }\n              }\n            }\n          }\n          setOutput(float(minMaxPosition));\n        }\n      ";else{var y=e+"("+e+"("+e+"(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])";"avg"===e&&(y="avgValue / count");var x=4*Math.floor(r/4),b=r%4,w="\n      if ("+m+") {\n        avgValue += dot(values, ones);\n      } else {\n        minMaxValue = max(values, minMaxValue);\n      }\n    ";this.userCode="\n      const ivec3 strides =\n        ivec3("+o+", "+i+", "+a+");\n      const ivec3 pads = ivec3("+f+", "+d+", "+v+");\n      const float initializationValue = "+g+";\n      const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0);\n\n      float count = 0.0;\n\n      float getValue(int batch, int xD, int xR, int xC, int ch) {\n        if (xC < 0 || xC >= "+t.inWidth+") {\n          return initializationValue;\n        }\n        count += 1.0;\n        return getX(batch, xD, xR, xC, ch);\n      }\n\n      void main() {\n        ivec5 coords = getOutputCoords();\n        int batch = coords.x;\n        int ch = coords.u;\n\n        ivec3 xCorner = ivec3(coords.y, coords.z, coords.w) * strides - pads;\n        int xDCorner = xCorner.x;\n        int xRCorner = xCorner.y;\n        int xCCorner = xCorner.z;\n\n        // max/min x(?, ?, ?, d) to get y(yD, yR, yC, ch).\n        // ? = to be determined\n        vec4 minMaxValue = vec4("+g+");\n        float avgValue = 0.0;\n        count = 0.0;\n\n        for (int wD = 0; wD < "+l+";\n            wD += "+s+") {\n          int xD = xDCorner + wD;\n\n          if (xD < 0 || xD >= "+t.inDepth+") {\n            continue;\n          }\n\n          for (int wR = 0; wR < "+h+";\n            wR += "+u+") {\n            int xR = xRCorner + wR;\n\n            if (xR < 0 || xR >= "+t.inHeight+") {\n              continue;\n            }\n\n            for (int wC = 0; wC < "+x+"; wC += 4) {\n              int xC = xCCorner + wC * "+c+";\n\n              vec4 values = vec4(\n                getValue(batch, xD, xR, xC, ch),\n                getValue(batch, xD, xR, xC + "+c+", ch),\n                getValue(batch, xD, xR, xC + 2 * "+c+", ch),\n                getValue(batch, xD, xR, xC + 3 * "+c+", ch)\n              );\n\n              "+w+"\n            }\n\n            int xC = xCCorner + "+x+";\n            if ("+(1==b)+") {\n              vec4 values = vec4(\n                getValue(batch, xD, xR, xC, ch),\n                initializationValue,\n                initializationValue,\n                initializationValue\n              );\n\n              "+w+"\n            } else if ("+(2==b)+") {\n              vec4 values = vec4(\n                getValue(batch, xD, xR, xC, ch),\n                getValue(batch, xD, xR, xC + "+c+", ch),\n                initializationValue,\n                initializationValue\n              );\n\n              "+w+"\n            } else if ("+(3==b)+") {\n              vec4 values = vec4(\n                getValue(batch, xD, xR, xC, ch),\n                getValue(batch, xD, xR, xC + "+c+", ch),\n                getValue(batch, xD, xR, xC + 2 * "+c+", ch),\n                initializationValue\n              );\n\n              "+w+"\n            }\n          }\n          setOutput("+y+");\n        }\n      }\n    "}},wa=function(t,e){this.variableNames=["x"];var n=t.windowSize,r=t.batchSize,o=t.inSize,i=Math.ceil(o/n);this.outputShape=[r,i];var a="0.0",s="";"prod"===e?a="1.0":"min"===e?(a="1.0 / 1e-20",s="min"):"max"===e&&(a="-1.0 / 1e-20",s="max");var u=e+"("+e+"("+e+"(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])";"sum"===e?u="sumValue":"prod"===e?u="prodValue":"all"===e?u="allValue":"any"===e&&(u="anyValue");var c=4*Math.floor(n/4),l=n%4,h="\n      if ("+("sum"===e)+") {\n        sumValue += dot(values, ones);\n      } else if ("+("prod"===e)+") {\n        vec2 tmp = vec2(values[0], values[1]) * vec2(values[2], values[3]);\n        prodValue *= tmp[0] * tmp[1];\n      } else {\n        minMaxValue = "+s+"(values, minMaxValue);\n      }\n    ",p="vec4";"all"===e?(a="1.0",h="\n        bool reducedAllValue = all(values);\n        float floatedReducedAllValue = float(reducedAllValue);\n        allValue = float(allValue >= 1.0 && floatedReducedAllValue >= 1.0);\n      ",p="bvec4"):"any"===e&&(a="0.0",h="\n        bool reducedAnyValue = any(values);\n        float floatedReducedAnyValue = float(reducedAnyValue);\n        anyValue = float(anyValue >= 1.0 || floatedReducedAnyValue >= 1.0);\n      ",p="bvec4");var f="";0<o%n&&(f="\n        if (inIdx < 0 || inIdx >= "+o+") {\n          return initializationValue;\n        }\n      "),this.userCode="\n      const float initializationValue = "+a+";\n      const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0);\n\n      float getValue(int batch, int inIdx) {\n        "+f+"\n        return getX(batch, inIdx);\n      }\n\n      void main() {\n        ivec2 coords = getOutputCoords();\n        int batch = coords[0];\n        int outIdx = coords[1];\n        int inOffset = outIdx * "+n+";\n\n        vec4 minMaxValue = vec4("+a+");\n        float prodValue = 1.0;\n        float sumValue = 0.0;\n        float allValue = 1.0;\n        float anyValue = 0.0;\n\n        for (int i = 0; i < "+c+"; i += 4) {\n          int inIdx = inOffset + i;\n          "+p+" values = "+p+"(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            getValue(batch, inIdx + 2),\n            getValue(batch, inIdx + 3)\n          );\n\n          "+h+"\n        }\n\n        int inIdx = inOffset + "+c+";\n        if ("+(1==l)+") {\n          "+p+" values = "+p+"(\n            getValue(batch, inIdx),\n            initializationValue,\n            initializationValue,\n            initializationValue\n          );\n\n          "+h+"\n        } else if ("+(2==l)+") {\n          "+p+" values = "+p+"(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            initializationValue,\n            initializationValue\n          );\n\n          "+h+"\n        } else if ("+(3==l)+") {\n          "+p+" values = "+p+"(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            getValue(batch, inIdx + 2),\n            initializationValue\n          );\n\n          "+h+"\n        }\n        setOutput("+u+");\n      }\n    "},Ca=function(t,e){this.variableNames=["A"],this.usesPackedTextures=!0,this.outputShape=t;for(var n="",r=0;r<4;r++){var o="thisRC = rc;";r%2==1&&(o+="thisRC.z += 1;"),1<r&&(o+="thisRC.y += 1;"),n+="\n        "+o+"\n        "+(0<r?"if(thisRC.y < rows && thisRC.z < cols){":"")+"\n          int flatIndex = getFlatIndex(thisRC);\n\n          ivec3 inputRC = inputCoordsFromReshapedOutCoords(flatIndex);\n          vec2 inputRCInnerDims = vec2(float(inputRC.y),float(inputRC.z));\n\n          result["+r+"] =\n            getChannel(getA(inputRC.x, inputRC.y, inputRC.z), inputRCInnerDims);\n        "+(0<r?"}":"")+"\n      "}this.userCode="\n      \n    ivec3 inputCoordsFromReshapedOutCoords(int index) {\n      "+Po(["r","c","d"],e)+"\n      return ivec3(r, c, d);\n    }\n  \n      "+Oo(t)+"\n\n      void main() {\n        ivec3 rc = getOutputCoords();\n\n        vec4 result = vec4(0.);\n\n        ivec3 thisRC;\n        int rows = "+t[1]+";\n        int cols = "+t[2]+";\n\n        "+n+"\n\n        setOutput(result);\n      }\n    "},Ea=function(t,e,n){this.variableNames=["dy"],this.outputShape=[],this.outputShape=e.shape;var r=e.shape,o=r[1],i=r[2],a=t.shape,s=a[1],u=a[2],c=[n&&1<s?o-1:o,n&&1<u?i-1:i],l=[n&&1<s?s-1:s,n&&1<u?u-1:u],h=c[0]/l[0],p=c[1]/l[1],f=1/h,d=1/p,v=2*Math.ceil(f)+2,m=2*Math.ceil(d)+2;this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n        int r = coords[1];\n        int c = coords[2];\n\n        float accumulator = 0.0;\n\n        const float heightScale = float("+h+");\n        const float widthScale = float("+p+");\n\n        const float invHeightScale = float("+f+");\n        const float invWidthScale = float("+d+");\n\n        const int winHeight = int("+v+");\n        const int winWidth = int("+m+");\n\n        // Compute bounds for where in dy we will look\n        float startRLerp = floor(float(r) * invHeightScale);\n        int startDyR = int(startRLerp - float(winHeight / 2));\n\n        float startCLerp = floor(float(c) * invWidthScale);\n        int startDyC = int(startCLerp - float(winWidth / 2));\n\n        // Loop over dy\n        for (int dyROffset = 0; dyROffset < winHeight; dyROffset++) {\n          int dyR = dyROffset + startDyR;\n\n          // Guard against the window exceeding the bounds of dy\n          if (dyR < 0 || dyR >= "+s+") {\n            continue;\n          }\n\n          for (int dyCOffset = 0; dyCOffset < winWidth; dyCOffset++) {\n            int dyC = dyCOffset + startDyC;\n\n            // Guard against the window exceeding the bounds of dy\n            if (dyC < 0 || dyC >= "+u+") {\n              continue;\n            }\n\n            float dxR = float(dyR) * heightScale;\n            int topDxRIndex = int(floor(dxR));\n            int bottomDxRIndex = int(min(ceil(dxR), "+(o-1)+".0));\n            float dxRLerp = dxR - float(topDxRIndex);\n            float inverseDxRLerp = 1.0 - dxRLerp;\n\n            float dxC = float(dyC) * widthScale;\n            int leftDxCIndex = int(floor(dxC));\n            int rightDxCIndex = int(min(ceil(dxC), "+(i-1)+".0));\n            float dxCLerp = dxC - float(leftDxCIndex);\n            float inverseDxCLerp = 1.0 - dxCLerp;\n\n            if (r == topDxRIndex && c == leftDxCIndex) {\n              // topLeft\n              accumulator +=\n                getDy(b, dyR, dyC, d) * inverseDxRLerp * inverseDxCLerp;\n            }\n\n            if (r == topDxRIndex && c == rightDxCIndex) {\n              // topRight\n              accumulator += getDy(b, dyR, dyC, d) * inverseDxRLerp * dxCLerp;\n            }\n\n            if (r == bottomDxRIndex && c == leftDxCIndex) {\n              // bottomLeft\n              accumulator += getDy(b, dyR, dyC, d) * dxRLerp * inverseDxCLerp;\n            }\n\n            if (r == bottomDxRIndex && c == rightDxCIndex) {\n              // bottomRight\n              accumulator += getDy(b, dyR, dyC, d) * dxRLerp * dxCLerp;\n            }\n          }\n        }\n        // End loop over dy\n\n        setOutput(accumulator);\n      }\n    "},_a=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    "},Ra=function(t,e,n,r){this.variableNames=["A"],this.usesPackedTextures=!0,this.outputShape=[];var o=t[0],i=t[1],a=t[2],s=t[3];this.outputShape=[o,e,n,s];var u=[r&&1<e?i-1:i,r&&1<n?a-1:a],c=[r&&1<e?e-1:e,r&&1<n?n-1:n];this.userCode="\n      const vec3 effectiveInputOverOutputRatioRC = vec3(\n          "+u[0]/c[0]+",\n          "+u[1]/c[1]+",\n          "+u[1]/c[1]+");\n      const vec3 inputShapeRC = vec3("+i+".0, "+a+".0,\n                                     "+a+".0);\n\n      float getAValue(int b, int r, int c, int d) {\n        return getChannel(getA(b, r, c, d), vec2(c, d));\n      }\n\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n        // Calculate values for next column in yRC.z.\n        ivec3 yRC = coords.yzz + ivec3(0, 0, 1);\n\n        // Fractional source index.\n        vec3 sourceFracIndexRC = vec3(yRC) * effectiveInputOverOutputRatioRC;\n\n        // Compute the four integer indices.\n        ivec3 sourceFloorRC = ivec3(sourceFracIndexRC);\n        ivec3 sourceCeilRC = ivec3(\n          min(inputShapeRC - 1.0, ceil(sourceFracIndexRC)));\n        \n        // Should we calculate next column and row elements in 2x2 packed cell.\n        bool hasNextCol = d < "+(s-1)+"; \n        bool hasNextRow = coords.z < "+(n-1)+";\n\n        // In parallel, construct four corners for all four components in\n        // packed 2x2 cell.\n        vec4 topLeft = vec4(\n          getAValue(b, sourceFloorRC.x, sourceFloorRC.y, d),\n          hasNextCol ? getAValue(b, sourceFloorRC.x, sourceFloorRC.y, d + 1)\n                     : 0.0,\n          hasNextRow ? getAValue(b, sourceFloorRC.x, sourceFloorRC.z, d)\n                     : 0.0,\n          (hasNextRow && hasNextCol) ?\n            getAValue(b, sourceFloorRC.x, sourceFloorRC.z, d + 1) : 0.0);\n\n        vec4 bottomLeft = vec4(\n          getAValue(b, sourceCeilRC.x, sourceFloorRC.y, d),\n          hasNextCol ? getAValue(b, sourceCeilRC.x, sourceFloorRC.y, d + 1)\n                     : 0.0,\n          hasNextRow ? getAValue(b, sourceCeilRC.x, sourceFloorRC.z, d)\n                     : 0.0,\n          (hasNextRow && hasNextCol) ?\n            getAValue(b, sourceCeilRC.x, sourceFloorRC.z, d + 1) : 0.0);\n\n        vec4 topRight = vec4(\n          getAValue(b, sourceFloorRC.x, sourceCeilRC.y, d),\n          hasNextCol ? getAValue(b, sourceFloorRC.x, sourceCeilRC.y, d + 1)\n                     : 0.0,\n          hasNextRow ? getAValue(b, sourceFloorRC.x, sourceCeilRC.z, d)\n                     : 0.0,\n          (hasNextRow && hasNextCol) ?\n            getAValue(b, sourceFloorRC.x, sourceCeilRC.z, d + 1) : 0.0);\n\n        vec4 bottomRight = vec4(\n          getAValue(b, sourceCeilRC.x, sourceCeilRC.y, d),\n          hasNextCol ? getAValue(b, sourceCeilRC.x, sourceCeilRC.y, d + 1)\n                     : 0.0,\n          hasNextRow ? getAValue(b, sourceCeilRC.x, sourceCeilRC.z, d)\n                     : 0.0,\n          (hasNextRow && hasNextCol) ?\n            getAValue(b, sourceCeilRC.x, sourceCeilRC.z, d + 1) : 0.0);\n\n        vec3 fracRC = sourceFracIndexRC - vec3(sourceFloorRC);\n\n        vec4 top = mix(topLeft, topRight, fracRC.yyzz);\n        vec4 bottom = mix(bottomLeft, bottomRight, fracRC.yyzz);\n        vec4 newValue = mix(top, bottom, fracRC.x);\n\n        setOutput(newValue);\n      }\n    "},Ia=function(t,e,n){this.variableNames=["dy"],this.outputShape=[],this.outputShape=e.shape;var r=e.shape,o=r[1],i=r[2],a=t.shape,s=a[1],u=a[2],c=[n&&1<s?o-1:o,n&&1<u?i-1:i],l=[n&&1<s?s-1:s,n&&1<u?u-1:u],h=c[0]/l[0],p=c[1]/l[1],f=1/h,d=1/p,v=2*Math.ceil(f)+2,m=2*Math.ceil(d)+2;this.userCode="\n      void main() {\n        ivec4 coords = getOutputCoords();\n        int b = coords[0];\n        int d = coords[3];\n        int r = coords[1];\n        int c = coords[2];\n\n        float accumulator = 0.0;\n\n        const float heightScale = float("+h+");\n        const float widthScale = float("+p+");\n\n        const float invHeightScale = float("+f+");\n        const float invWidthScale = float("+d+");\n\n        const int winHeight = int("+v+");\n        const int winWidth = int("+m+");\n\n        // Compute bounds for where in dy we will look\n        float startRLerp = floor(float(r) * invHeightScale);\n        int startDyR = int(floor(startRLerp - float(winHeight / 2)));\n\n        float startCLerp = floor(float(c) * invWidthScale);\n        int startDyC = int(floor(startCLerp - float(winWidth / 2)));\n\n        // Loop over dy\n        for (int dyROffset = 0; dyROffset < winHeight; dyROffset++) {\n          int dyR = dyROffset + startDyR;\n\n          // Guard against the window exceeding the bounds of dy\n          if (dyR < 0 || dyR >= "+s+") {\n            continue;\n          }\n\n          for (int dyCOffset = 0; dyCOffset < winWidth; dyCOffset++) {\n            int dyC = dyCOffset + startDyC;\n\n            // Guard against the window exceeding the bounds of dy\n            if (dyC < 0 || dyC >= "+u+") {\n              continue;\n            }\n\n            float sourceFracRow =\n              float("+c[0]+") *\n                (float(dyR) / float("+l[0]+"));\n\n            float sourceFracCol =\n                float("+c[1]+") *\n                  (float(dyC) / float("+l[1]+"));\n\n            int sourceNearestRow = int(min(\n                float(int("+o+") - 1),\n                "+n+" ? float(round(sourceFracRow)) :\n                                  float(floor(sourceFracRow))));\n\n            int sourceNearestCol = int(min(\n                float(int("+i+") - 1),\n                "+n+" ? float(round(sourceFracCol)) :\n                                  float(floor(sourceFracCol))));\n\n            if (r == sourceNearestRow && c == sourceNearestCol) {\n              accumulator += getDy(b, dyR, dyC, d);\n            }\n          }\n        }\n        // End loop over dy\n\n        setOutput(accumulator);\n      }\n    "},Sa=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    "},ka=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=Uo(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      "},Na=function(i,a){this.variableNames=["x"],this.usesPackedTextures=!0;var t=i.length;if(4<t)throw new Error("WebGL backend: Reverse of rank-"+t+" tensor is not yet supported");this.outputShape=i;var e,n,r,o=Fo("rc",t),s=o[t-1]+" + 1 < "+this.outputShape[t-1],u=o[t-2]+" + 1 < "+this.outputShape[t-2],c=Uo(t);function l(o){var t=i.map(function(t,e){return n=e,r=o,-1!==a.indexOf(n)&&1!==i[n]?i[n]+" - "+r[n]+" - 1":""+r[n];var n,r});return"getChannel(getX("+t.join(",")+"), vec2("+t.slice(-2).join(",")+"))"}this.userCode=1===t?"\n        void main(){\n          int rc = getOutputCoords();\n          vec4 result = vec4(0.);\n          result.r = getChannel(getX("+i[0]+" - rc - 1),\n            "+i[0]+" - rc - 1);\n          if("+s+"){\n              result.g = getChannel(getX("+i[0]+" - (rc  + 1) - 1),\n                "+i[0]+" - (rc  + 1) - 1);\n          }\n          setOutput(result);\n        }\n      ":"\n        void main() {\n          "+c+" rc = getOutputCoords();\n          vec4 result = vec4(0.);\n          result.r = "+l(o.slice())+";\n          if("+s+"){\n            result.g = "+((r=o.slice())[t-1]="("+r[t-1]+" + 1)",l(r))+";\n          }\n          if("+u+") {\n            result.b = "+((n=o.slice())[t-2]="("+n[t-2]+" + 1)",l(n))+";\n            if("+s+") {\n              result.a = "+((e=o.slice())[t-1]="("+e[t-1]+" + 1)",e[t-2]="("+e[t-2]+" + 1)",l(e))+";\n            }\n          }\n          setOutput(result);\n        }\n    "},Aa=function(t,e,n,r,o,i,a){this.variableNames=["updates","indices","defaultValue"],this.outputShape=i;var s=Uo(o.length),u=Uo(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      "},Ta=function(t,e){this.variableNames=["x","segmentIds"];var n=t.windowSize,r=t.batchSize,o=t.inSize,i=t.numSegments,a=i*Math.ceil(o/n);this.outputShape=[r,a];var s=4*Math.floor(n/4),u=n%4,c="\n        sumValue += dot(values, segFilter);\n    ",l="";0<o%n&&(l="\n        if (inIdx < 0 || inIdx >= "+o+") {\n          return initializationValue;\n        }\n      ");var h="";0<o%n&&(h="\n        if (inIdx < 0 || inIdx >= "+o+") {\n          return -1.0;\n        }\n      "),this.userCode="\n      const float initializationValue = 0.0;\n\n      float getValue(int batch, int inIdx) {\n        "+l+"\n        return getX(batch, inIdx);\n      }\n\n      float getSegmentIdAtIndex(int inIdx) {\n        "+h+"\n        return getSegmentIds(inIdx);\n      }\n\n      void main() {\n        ivec2 coords = getOutputCoords();\n        int batch = coords[0];\n        int outIdx = coords[1];\n        int inOffset = int(floor(float(outIdx) / float(\n          "+i+")) * float("+n+"));\n        int currentSeg = int(mod(float(outIdx), float("+i+")));\n\n        float sumValue = 0.0;\n\n        for (int i = 0; i < "+s+"; i += 4) {\n          int inIdx = inOffset + i;\n          vec4 values = vec4(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            getValue(batch, inIdx + 2),\n            getValue(batch, inIdx + 3)\n          );\n\n          vec4 segFilter = vec4(\n            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 2)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 3)) == currentSeg ? 1 : 0\n          );\n\n          "+c+"\n        }\n\n        int inIdx = inOffset + "+s+";\n        if ("+(1==u)+") {\n          vec4 values = vec4(\n            getValue(batch, inIdx),\n            initializationValue,\n            initializationValue,\n            initializationValue\n          );\n\n          int inIdxSeg = int(getSegmentIdAtIndex(inIdx));\n\n          vec4 segFilter = vec4(\n            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,\n            0,\n            0,\n            0\n          );\n\n          "+c+"\n        } else if ("+(2==u)+") {\n          vec4 values = vec4(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            initializationValue,\n            initializationValue\n          );\n\n          vec4 segFilter = vec4(\n            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,\n              0,\n              0\n          );\n\n          "+c+"\n        } else if ("+(3==u)+") {\n          vec4 values = vec4(\n            getValue(batch, inIdx),\n            getValue(batch, inIdx + 1),\n            getValue(batch, inIdx + 2),\n            initializationValue\n          );\n\n          vec4 segFilter = vec4(\n            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,\n            int(getSegmentIdAtIndex(inIdx + 2)) == currentSeg ? 1 : 0,\n            0\n          );\n\n          "+c+"\n        }\n        setOutput(sumValue);\n      }\n    "},Da=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=Uo(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    "},Fa=(Pa.prototype.getCustomSetupFunc=function(n){var r=this;if(n.length!==this.rank)throw Error("The rank ("+this.rank+") of the program must match the length of start ("+n.length+")");return function(t,e){null==r.startLoc&&(r.startLoc=t.getUniformLocationNoThrow(e,"start"),null==r.startLoc)||t.gl.uniform1iv(r.startLoc,n)}},Pa),Ma=["x","y","z","w","u","v"];function Pa(t){this.variableNames=["source"],this.outputShape=t,this.rank=t.length;var e,n=Uo(this.rank),r="uniform int start["+this.rank+"];",o=function(t){if(1===t)return"sourceLoc";if(t<=6)return Ma.slice(0,t).map(function(t){return"sourceLoc."+t}).join(",");throw Error("Slicing for rank "+t+" is not yet supported")}(this.rank);e="\n        "+n+" sourceLoc;\n        "+n+" coords = getOutputCoords();\n        "+t.map(function(t,e){return"sourceLoc."+Ma[e]+" = start["+e+"] + coords."+Ma[e]+";"}).join("\n")+"\n      ",this.userCode="\n      "+r+"\n      void main() {\n        "+e+"\n        setOutput(getSource("+o+"));\n      }\n    "}var Oa=(za.prototype.getCustomSetupFunc=function(n){var r=this;if(n.length!==this.rank)throw Error("The rank ("+this.rank+") of the program must match the length of start ("+n.length+")");return function(t,e){null==r.startLoc&&(r.startLoc=t.getUniformLocationNoThrow(e,"start"),null==r.startLoc)||t.gl.uniform1iv(r.startLoc,n)}},za),Ba=function(t,e,n){this.variableNames=["x"];var r=(this.outputShape=n).length,o=Uo(n.length),i=Uo(n.length),a="";if(1===r)a="coords * strides + begin";else{var s=0;a=n.map(function(t,e){return s++,1===n.length?"coords * strides["+e+"] + begin["+e+"]":"coords["+(s-1)+"] * strides["+e+"] + begin["+e+"]"}).join(",")}this.userCode="\n      "+o+" begin = "+o+"("+t+");\n      "+o+" strides = "+o+"("+e+");\n\n      void main() {\n        "+i+" coords = getOutputCoords();\n        setOutput(getX("+a+"));\n      }\n    "},La=(Wa.prototype.acquireTexture=function(t,e,n){var r,o=Ua(e,n),i=Va(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===Xt.PACKED_2X2_FLOAT32?r=this.gpgpu.createPackedMatrixTexture(t[0],t[1]):o===Xt.PACKED_2X2_FLOAT16?r=this.gpgpu.createFloat16PackedMatrixTexture(t[0],t[1]):o===Xt.UNPACKED_FLOAT32?r=this.gpgpu.createFloat32MatrixTexture(t[0],t[1]):o===Xt.UNPACKED_FLOAT16?r=this.gpgpu.createFloat16MatrixTexture(t[0],t[1]):o===Xt.PACKED_4X1_UNSIGNED_BYTE&&(r=this.gpgpu.createUnsignedBytesMatrixTexture(t[0],t[1])),this.usedTextures[i].push(r),r},Wa.prototype.releaseTexture=function(t,e,n,r){if(null!=this.freeTextures){var o=Va(e,Ua(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()}},Wa.prototype.log=function(){if(this.logEnabled){var t=this.numFreeTextures+this.numUsedTextures;console.log("Free/Used",this.numFreeTextures+" / "+this.numUsedTextures,"("+t+")")}},Wa.prototype.getNumUsedTextures=function(){return this.numUsedTextures},Wa.prototype.getNumFreeTextures=function(){return this.numFreeTextures},Wa.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}},Wa);function Wa(t){this.gpgpu=t,this.numUsedTextures=0,this.numFreeTextures=0,this.freeTextures={},this.logEnabled=!1,this.usedTextures={}}function za(t){this.variableNames=["source"],this.usesPackedTextures=!0,this.outputShape=t,this.rank=t.length;var e=Uo(this.rank),n=Fo("coords",this.rank),r=Fo("sourceLoc",this.rank),o=1===this.rank?"sourceLoc":"vec2("+r.slice(-2).join()+")",i="getChannel(getSource("+r.join()+"), "+o+")",a="\n      result.x = "+i+";\n      if (++"+n[this.rank-1]+" < "+t[this.rank-1]+") {\n        ++"+r[this.rank-1]+";\n        result.y = "+i+";\n        --"+r[this.rank-1]+";\n      }\n    ",s=1===this.rank?"":"\n      --"+n[this.rank-1]+";\n      if (++"+n[this.rank-2]+" < "+t[this.rank-2]+") {\n        ++"+r[this.rank-2]+";\n        result.z = "+i+";\n        if (++"+n[this.rank-1]+" < "+t[this.rank-1]+") {\n          ++"+r[this.rank-1]+";\n          result.w = "+i+";\n        }\n      }\n    ",u=this.rank<=4?"sourceLoc = coords +\n            "+e+"("+t.map(function(t,e){return"start["+e+"]"}).join()+");":t.map(function(t,e){return r[e]+" = "+n[e]+" + start["+e+"];"}).join("\n");this.userCode="\n      uniform int start["+this.rank+"];\n      void main() {\n        "+e+" coords = getOutputCoords();\n        "+e+" sourceLoc;\n        "+u+" \n        vec4 result = vec4(0.);\n        "+a+"\n        "+s+"\n        setOutput(result);\n      }\n    "}function Ua(t,e){if(t===Kt.UPLOAD)return Xt.PACKED_2X2_FLOAT32;if(t===Kt.RENDER||null==t)return n=e,_.getBool("WEBGL_RENDER_FLOAT32_ENABLED")?n?Xt.PACKED_2X2_FLOAT32:Xt.UNPACKED_FLOAT32:n?Xt.PACKED_2X2_FLOAT16:Xt.UNPACKED_FLOAT16;var n;if(t===Kt.DOWNLOAD||t===Kt.PIXELS)return Xt.PACKED_4X1_UNSIGNED_BYTE;throw new Error("Unknown logical texture type "+t)}function Va(t,e,n){return t[0]+"_"+t[1]+"_"+e+"_"+n}var Ga=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=Uo(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    "},Ha=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=Uo(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    "},ja=function(t,e){this.variableNames=["A"],this.usesPackedTextures=!0;for(var n=new Array(t.length),r=0;r<n.length;r++)n[r]=t[e[r]];if(this.outputShape=n,this.rank=n.length,6<this.rank)throw Error("Packed transpose for rank "+this.rank+" is not yet supported.");var o=Uo(this.rank),i=Do("rc",this.rank),a=new Array(this.rank);for(r=0;r<e.length;r++)a[e[r]]=i[r];var s="vec2("+a.slice(-2).join()+")",u="++"+i[this.rank-1]+" < "+n[this.rank-1],c="getChannel(getA("+a.join()+"), "+s+")";this.userCode="\n    void main() {\n      "+o+" rc = getOutputCoords();\n      vec4 result = vec4(0.);\n      result[0] = "+c+";\n      if("+u+") {\n        result[1] = "+c+";\n      }\n      --"+i[this.rank-1]+";\n      if(++"+i[this.rank-2]+" < "+n[this.rank-2]+") {\n        result[2] = "+c+";\n        if("+u+") {\n          result[3] = "+c+";\n        }\n      }  \n      setOutput(result);\n    }\n    "},qa=1.7580993408473768,$a=1.0507009873554805,Ka=function(t,e){this.variableNames=["A"],this.outputShape=t,this.userCode="\n      float unaryOperation(float x) {\n        "+e+"\n      }\n\n      void main() {\n        float x = getAAtOutCoords();\n        float y = unaryOperation(x);\n\n        setOutput(y);\n      }\n    "},Xa="if (isnan(x)) return x;",Ya="return abs(x);",Ja=Xa+"\n  return (x < 0.0) ? 0.0 : x;\n",Qa="return (x >= 0.0) ? x : (exp(x) - 1.0);",Za="return -x;",ts="return ceil(x);",es="return floor(x);",ns="return exp(x);",rs="return exp(x) - 1.0;",os="return x;",is="\n  vec4 result = x * vec4(greaterThanEqual(x, vec4(0.0)));\n  bvec4 isNaN = isnan(x);\n\n  result.r = isNaN.r ? x.r : result.r;\n  result.g = isNaN.g ? x.g : result.g;\n  result.b = isNaN.b ? x.b : result.b;\n  result.a = isNaN.a ? x.a : result.a;\n\n  return result;\n",as="\n  vec4 result;\n\n  result.r = (x.r >= 0.0) ? x.r : (exp(x.r) - 1.0);\n  result.g = (x.g >= 0.0) ? x.g : (exp(x.g) - 1.0);\n  result.b = (x.b >= 0.0) ? x.b : (exp(x.b) - 1.0);\n  result.a = (x.a >= 0.0) ? x.a : (exp(x.a) - 1.0);\n\n  return result;\n",ss=function(t,e){this.variableNames=["A"],this.usesPackedTextures=!0,this.outputShape=t,this.userCode="\n      vec4 unaryOperation(vec4 x) {\n        "+e+"\n      }\n\n      void main() {\n        vec4 x = getAAtOutCoords();\n        vec4 y = unaryOperation(x);\n\n        setOutput(y);\n      }\n    "},us=function(t){this.variableNames=["A"],this.usesPackedTextures=!0;var e=(this.outputShape=t).length,n=Fo("rc",e),r=Uo(e),o=function(t,e){if(1===t)return"rc";for(var n="",r=0;r<t;r++)n+=e[r],r<t-1&&(n+=",");return n}(e,n),i=n.slice(-2),a=e<=1?"rc":"vec2("+i.join(",")+")";this.userCode="\n      void main() {\n        "+r+" rc = getOutputCoords();\n        vec4 packedInput = getA("+o+");\n\n        setOutput(getChannel(packedInput, "+a+"));\n      }\n    "},cs={};function ls(t,e){if(void 0===e&&(e=!1),"linear"===t)return"return x;";if("relu"===t)return e?is:Ja;if("elu"===t)return e?as:Qa;if("prelu"===t)return e?ei:Zo;throw new Error("Activation "+t+" has not been implemented for the WebGL backend.")}var hs=(ps.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})},ps.prototype.fromPixels=function(t,e){if(null==t)throw new Error("pixels passed to tf.browser.fromPixels() can not be null");var n="undefined"!=typeof OffscreenCanvas&&t instanceof OffscreenCanvas||"undefined"!=typeof HTMLCanvasElement&&t instanceof HTMLCanvasElement,r=t.data instanceof Uint8Array,o="undefined"!=typeof ImageData&&t instanceof ImageData,i="undefined"!=typeof HTMLVideoElement&&t instanceof HTMLVideoElement,a="undefined"!=typeof HTMLImageElement&&t instanceof HTMLImageElement,s=i?[t.videoWidth,t.videoHeight]:[t.width,t.height],u=s[0],c=s[1],l=[c,u],h=[c,u,e];if(!(n||r||o||i||a))throw new Error("pixels passed to tf.browser.fromPixels() must be either an HTMLVideoElement, HTMLImageElement, HTMLCanvasElement, ImageData in browser, or OffscreenCanvas, ImageData in webworker or {data: Uint32Array, width: number, height: number}, but was "+t.constructor.name);(a||i)&&(null==this.fromPixels2DContext&&(this.fromPixels2DContext=ne(_.getNumber("WEBGL_VERSION")).getContext("2d")),this.fromPixels2DContext.canvas.width=u,this.fromPixels2DContext.canvas.height=c,this.fromPixels2DContext.drawImage(t,0,0,u,c),t=this.fromPixels2DContext.canvas);var p,f,d=this.makeTensorHandle(l,"int32");if(this.texData.get(d.dataId).usage=Kt.PIXELS,this.gpgpu.uploadPixelDataToTexture(this.getTexture(d.dataId),t),_.getBool("WEBGL_PACK")){p=new Mi(h);var v=this.makePackedTensor(p.outputShape,d.dtype);f=this.compileAndRun(p,[d],v)}else p=new Fi(h),f=this.compileAndRun(p,[d]);return this.disposeData(d.dataId),f},ps.prototype.makeTensorHandle=function(t,e){var n={};return this.register(n,t,e),{dataId:n,shape:t,dtype:e}},ps.prototype.write=function(t,e){if(null==e)throw new Error("MathBackendWebGL.write(): values can not be null");if(_.getBool("DEBUG"))for(var n=0;n<e.length;n++){var r=e[n];if(!ue(r)){if(_.getBool("WEBGL_RENDER_FLOAT32_CAPABLE"))throw Error("The value "+r+" cannot be represented with your current settings. Consider enabling float32 rendering: 'tf.ENV.set('WEBGL_RENDER_FLOAT32_ENABLED', true);'");throw Error("The value "+r+" cannot be represented on this device.")}}var o=this.texData.get(t);if("complex64"===o.dtype)throw new Error("Cannot write to a complex64 dtype. Please use tf.complex(real, imag).");this.releaseGPUData(t),o.usage=Kt.UPLOAD,o.values=e},ps.prototype.readSync=function(t){var e=this.texData.get(t),n=e.values,r=e.dtype,o=e.complexTensors,i=e.slice,a=e.shape,s=e.isPacked;if(null!=i){var u;u=s?new ss(a,os):new Ka(a,os);var c=this.compileAndRun(u,[{dataId:t,shape:a,dtype:r}]),l=this.readSync(c.dataId);return c.dispose(),l}if(null!=n)return this.convertAndCacheOnCPU(t);if("string"===r)return n;var h,p,f=null!=this.activeTimers;return f&&(h=tt()),p="complex64"===r?wo(o.real.dataSync(),o.imag.dataSync()):this.getValuesFromTexture(t),f&&(this.downloadWaitMs+=tt()-h),this.convertAndCacheOnCPU(t,p)},ps.prototype.read=function(E){return y(this,void 0,void 0,function(){var e,n,r,o,i,a,s,u,c,l,h,p,f,d,v,m,g,y,x,b,w,C;return I(this,function(t){switch(t.label){case 0:if(this.pendingRead.has(E))return e=this.pendingRead.get(E),[2,new Promise(function(t){return e.push(t)})];if(n=this.texData.get(E),r=n.values,o=n.shape,i=n.slice,a=n.dtype,s=n.complexTensors,u=n.isPacked,null!=i)return c=u?new ss(o,os):new Ka(o,os),l=this.compileAndRun(c,[{dataId:E,shape:o,dtype:a}]),h=this.read(l.dataId),l.dispose(),[2,h];if(null!=r)return[2,this.convertAndCacheOnCPU(E)];if(!_.getBool("WEBGL_DOWNLOAD_FLOAT_ENABLED")&&2===_.getNumber("WEBGL_VERSION"))throw new Error("tensor.data() with WEBGL_DOWNLOAD_FLOAT_ENABLED=false and WEBGL_VERSION=2 not yet supported.");return p=null,"complex64"!==a&&_.get("WEBGL_BUFFER_SUPPORTED")&&(f=this.decode(E),d=this.texData.get(f.dataId),p=(C=this.gpgpu).createBufferFromTexture.apply(C,[d.texture].concat(oe(o)))),this.pendingRead.set(E,[]),"complex64"===a?[3,2]:[4,this.gpgpu.createAndWaitForFence()];case 1:t.sent(),t.label=2;case 2:return"complex64"!==a?[3,4]:[4,Promise.all([s.real.data(),s.imag.data()])];case 3:return m=t.sent(),g=m[0],y=m[1],v=wo(g,y),[3,5];case 4:v=null==p?this.getValuesFromTexture(E):(x=L(o),this.gpgpu.downloadFloat32MatrixFromBuffer(p,x)),t.label=5;case 5:return null!=f&&this.disposeData(f.dataId),b=this.convertAndCacheOnCPU(E,v),w=this.pendingRead.get(E),this.pendingRead.delete(E),w.forEach(function(t){return t(b)}),this.pendingDisposal.has(E)&&(this.pendingDisposal.delete(E),this.disposeData(E)),[2,b]}})})},ps.prototype.getValuesFromTexture=function(e){var t,n=this,r=this.texData.get(e),o=r.shape,i=r.dtype,a=r.isPacked,s=L(o);if(_.getBool("WEBGL_DOWNLOAD_FLOAT_ENABLED")){var u=this.decode(e),c=this.texData.get(u.dataId),l=(t=this.gpgpu).downloadMatrixFromPackedTexture.apply(t,[c.texture].concat(oe(o))).subarray(0,s);return this.disposeData(u.dataId),l}var h=_.getBool("WEBGL_PACK")&&!0===a,p=h?Be(o):o,f=this.makeTensorHandle(p,"float32");f.size=L(o),this.texData.get(f.dataId).usage=Kt.DOWNLOAD;var d=Qe(function(){var t=h?new ki(p):new Si(p);return n.compileAndRun(t,[{shape:p,dtype:i,dataId:e}],f,null)}),v=this.texData.get(d.dataId),m=this.gpgpu.downloadByteEncodedFloatMatrixFromOutputTexture(v.texture,v.texShape[0],v.texShape[1]).subarray(0,s);return this.disposeData(f.dataId),m},ps.prototype.time=function(u){return y(this,void 0,void 0,function(){var e,n,r,o,i,a,s;return I(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=m(this.activeTimers.map(function(t){return t.query})).filter(function(t){return null!=t}),i=m(this.activeTimers.map(function(t){return t.name})).filter(function(t){return null!=t}),this.activeTimers=e,r&&(this.programTimersStack=null),[4,Promise.all(o)];case 1:return a=t.sent(),s={uploadWaitMs:this.uploadWaitMs,downloadWaitMs:this.downloadWaitMs,kernelMs:d(a),getExtraProfileInfo:function(){return a.map(function(t,e){return{name:i[e],ms:t}}).map(function(t){return t.name+": "+t.ms}).join(", ")},wallMs:null},this.uploadWaitMs=0,this.downloadWaitMs=0,[2,s]}})})},ps.prototype.memory=function(){return{unreliable:!1,numBytesInGPU:this.numBytesInGPU}},ps.prototype.startTimer=function(){return 0<_.getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")?this.gpgpu.beginQuery():{startMs:tt(),endMs:null}},ps.prototype.endTimer=function(t){return 0<_.getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")?this.gpgpu.endQuery():t.endMs=tt(),t},ps.prototype.getQueryTime=function(n){return y(this,void 0,void 0,function(){var e;return I(this,function(t){return 0<_.getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")?[2,this.gpgpu.waitForQueryAndGetTime(n)]:[2,(e=n).endMs-e.startMs]})})},ps.prototype.disposeData=function(t){if(!this.pendingDisposal.has(t))if(this.pendingRead.has(t))this.pendingDisposal.add(t);else if(this.texData.has(t)){this.releaseGPUData(t);var e=this.texData.get(t).complexTensors;null!=e&&(e.real.dispose(),e.imag.dispose()),this.texData.delete(t)}},ps.prototype.releaseGPUData=function(t){var e=this.texData.get(t),n=e.texture,r=e.dtype,o=e.texShape,i=e.usage,a=e.isPacked,s=e.slice,u=s&&s.origDataId||t,c=this.dataRefCount.get(u);1<c?this.dataRefCount.set(u,c-1):(this.dataRefCount.delete(u),null!=n&&(this.numBytesInGPU-=this.computeBytes(o,r),this.textureManager.releaseTexture(n,o,i,a)));var l=this.texData.get(t);l.texture=null,l.texShape=null,l.isPacked=!1,l.slice=null},ps.prototype.getTexture=function(t){return this.uploadToGPU(t),this.texData.get(t).texture},ps.prototype.getDataInfo=function(t){return this.texData.get(t)},ps.prototype.getCPUBackend=function(){return _.getBool("WEBGL_CPU_FORWARD")?(null==this.cpuBackend&&(this.cpuBackend=qt.findBackend("cpu")),this.cpuBackend):null},ps.prototype.shouldExecuteOnCPU=function(t,e){var n=this;return void 0===e&&(e=128),null!=this.getCPUBackend()&&t.every(function(t){return null==n.texData.get(t.dataId).texture&&t.size<e})},ps.prototype.getGPGPUContext=function(){return this.gpgpu},ps.prototype.complex=function(t,e){var n=this.makeOutputArray(t.shape,"complex64");return this.texData.get(n.dataId).complexTensors={real:qt.keep(t.clone()),imag:qt.keep(e.clone())},n},ps.prototype.real=function(t){return this.texData.get(t.dataId).complexTensors.real.clone()},ps.prototype.imag=function(t){return this.texData.get(t.dataId).complexTensors.imag.clone()},ps.prototype.slice=function(t,e,n){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.slice(t,e,n);if(0===L(n))return wn([],n,t.dtype);var r=this.texData.get(t.dataId).isPacked,o=Hr(t.shape,e,n);if(!r&&o)return this.uploadToGPU(t.dataId),this.shallowSlice(t,e,n);var i=_.getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new Oa(n):new Fa(n),a=i.getCustomSetupFunc(e);return this.compileAndRun(i,[t],null,a)},ps.prototype.shallowSlice=function(t,e,n){var r=this.texData.get(t.dataId),o=yt.make(n,{},t.dtype,this),i=this.texData.get(o.dataId);Object.assign(i,r),i.shape=n,i.dtype=t.dtype;var a=jr(e,t.strides);r.slice&&(a+=r.slice.flatOffset),i.slice={flatOffset:a,origDataId:r.slice&&r.slice.origDataId||t.dataId};var s=this.dataRefCount.get(i.slice.origDataId)||1;return this.dataRefCount.set(i.slice.origDataId,s+1),o},ps.prototype.stridedSlice=function(t,e,n,r){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.stridedSlice(t,e,n,r);var o=Ur(e,n,r);if(o.some(function(t){return 0===t}))return wn([],o);var i=new Ba(e,r,o);return this.compileAndRun(i,[t])},ps.prototype.reverse=function(t,e){var n=_.getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new Na(t.shape,e):new ka(t.shape,e);return this.compileAndRun(n,[t])},ps.prototype.concat=function(t,e){if("complex64"===t[0].dtype){var n=t.map(function(t){return xn(t)}),r=t.map(function(t){return bn(t)});return yn(this.concat(n,e),this.concat(r,e))}if(this.shouldExecuteOnCPU(t))return this.cpuBackend.concat(t,e);if(1===t.length)return t[0];if(t.length>_.getNumber("WEBGL_MAX_TEXTURES_IN_SHADER")){var o=Math.floor(t.length/2),i=this.concat(t.slice(0,o),e),a=this.concat(t.slice(o),e);return this.concat([i,a],e)}if(_.getBool("WEBGL_PACK_ARRAY_OPERATIONS")&&1<t[0].rank){var s=new si(t.map(function(t){return t.shape}),e);return this.compileAndRun(s,t)}var u=mn(t.map(function(t){return t.shape}),e),c=t.map(function(t){return t.as2D(-1,L(t.shape.slice(e)))}),l=new ai(c.map(function(t){return t.shape}));return this.compileAndRun(l,c).reshape(u)},ps.prototype.neg=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.neg(t);if(_.getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,Za,t.dtype);var e=new Ka(t.shape,Za);return this.compileAndRun(e,[t])},ps.prototype.batchMatMul=function(t,e,n,r){var o=n?t.shape[2]:t.shape[1],i=r?e.shape[1]:e.shape[2],a=n?t.shape[1]:t.shape[2],s=t.shape[0];if((1===o||1===i)&&1e3<a){n&&(t=t.transpose([0,2,1])),r&&(e=e.transpose([0,2,1]));var u=1===i?t:t.as3D(s,a,1),c=1===i?2:1,l=1===i?e.as3D(s,1,a):e;return this.multiply(u,l).sum(c,!0)}var h=Pt(t.dtype,e.dtype),p=new pa(t.shape,[s,o,i],n,r),f=this.makePackedTensor(p.outputShape,h);return this.compileAndRun(p,[t,e],f)},ps.prototype.fusedBatchMatMul=function(t){var e=t.a,n=t.b,r=t.transposeA,o=t.transposeB,i=t.bias,a=t.activation,s=t.preluActivationWeights,u=r?e.shape[2]:e.shape[1],c=o?n.shape[1]:n.shape[2],l=e.shape[0],h=Pt(e.dtype,n.dtype),p=null!=i,f=null!=s,d=a?ls(a,!0):null,v=new pa(e.shape,[l,u,c],r,o,p,d,f),m=this.makePackedTensor(v.outputShape,h),g=[e,n];return i&&g.push(i),s&&g.push(s),this.compileAndRun(v,g,m)},ps.prototype.multiply=function(t,e){if("complex64"===t.dtype){var n=this.texData.get(t.dataId),r=this.texData.get(e.dataId),o=new Xo("return areal * breal - aimag * bimag;",t.shape,e.shape),i=new Xo("return areal * bimag + aimag * breal;",t.shape,e.shape),a=[this.makeComplexComponentTensorHandle(t,n.complexTensors.real),this.makeComplexComponentTensorHandle(t,n.complexTensors.imag),this.makeComplexComponentTensorHandle(e,r.complexTensors.real),this.makeComplexComponentTensorHandle(e,r.complexTensors.imag)],s=this.compileAndRun(o,a),u=this.compileAndRun(i,a),c=this.complex(s,u);return s.dispose(),u.dispose(),c}if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.multiply(t,e);if(_.getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,Qo,t.dtype);var l=new ti(Qo,t.shape,e.shape),h=this.makeOutputArray(l.outputShape,t.dtype);return this.compileAndRun(l,[t,e],h)},ps.prototype.batchNormalization=function(t,e,n,r,o,i){var a=[t,e,n],s=null;null!=i&&(s=i.shape,a.push(i));var u=null;if(null!=o&&(u=o.shape,a.push(o)),_.getBool("WEBGL_PACK_NORMALIZATION")){var c=new Ko(t.shape,e.shape,n.shape,s,u,r);return this.compileAndRun(c,a)}var l=new $o(t.shape,e.shape,n.shape,s,u,r);return this.compileAndRun(l,a)},ps.prototype.localResponseNormalization4D=function(t,e,n,r,o){var i=_.getBool("WEBGL_PACK_NORMALIZATION")?new ca(t.shape,e,n,r,o):new sa(t.shape,e,n,r,o);return this.compileAndRun(i,[t])},ps.prototype.LRNGrad=function(t,e,n,r,o,i,a){var s=new ua(e.shape,r,o,i,a);return this.compileAndRun(s,[e,n,t])},ps.prototype.tile=function(t,e){if("string"===t.dtype){var n=this.readSync(t.dataId).map(function(t){return rt(t)});return Io(or(t.shape,t.dtype,n),e)}var r=new Ga(t.shape,e);return this.compileAndRun(r,[t])},ps.prototype.pad=function(t,e,n){var r=_.getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new ya(t.shape,e,n):new ga(t.shape,e,n);return this.compileAndRun(r,[t])},ps.prototype.transpose=function(t,e){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.transpose(t,e);var n=_.getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new ja(t.shape,e):new Ha(t.shape,e);return this.compileAndRun(n,[t])},ps.prototype.gather=function(t,e,n){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.gather(t,e,n);var r=new Pi(t.shape,e.size,n);return this.compileAndRun(r,[t,e])},ps.prototype.batchToSpaceND=function(t,e,n){O(t.rank<=4,function(){return"batchToSpaceND for rank > 4 with a WebGL backend not implemented yet"});var r=e.reduce(function(t,e){return t*e}),o=Dr(t.shape,e,r),i=Fr(o.length,e.length),a=Mr(t.shape,e,r),s=Pr(n,e.length),u=Or(a,n,e.length);return t.reshape(o).transpose(i).reshape(a).slice(s,u)},ps.prototype.spaceToBatchND=function(t,e,n){O(t.rank<=4,function(){return"spaceToBatchND for rank > 4 with a WebGL backend not implemented yet"});var r=e.reduce(function(t,e){return t*e}),o=[[0,0]];o.push.apply(o,n);for(var i=1+e.length;i<t.shape.length;++i)o.push([0,0]);var a=t.pad(o),s=Dr(a.shape,e,r,!1),u=Fr(s.length,e.length,!1),c=Mr(a.shape,e,r,!1);return a.reshape(s).transpose(u).reshape(c)},ps.prototype.reduce=function(t,e,n){var r=t.shape[0],o=t.shape[1],i=Lr(o),a=new wa({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)},ps.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=Lr(o),a=new To({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)},ps.prototype.argReducePacked=function(t,e,n){void 0===n&&(n=null);var r=null!=n?n.shape:t.shape,o=Lr(r[r.length-1]),i=new Ho(r,o,e,null==n),a=this.makePackedTensor(i.outputShape,"int32"),s=null==n?[t]:[t,n];return this.compileAndRun(i,s,a),a.rank===t.rank?this.argReducePacked(t,e,a):a},ps.prototype.sum=function(t,e){hn("sum",e,t.rank);var n=cn(t.shape,e),r=n[0],o=L(n[1]),i=t.as2D(-1,o),a=Ot(t.dtype);return this.reduce(i,"sum",a).reshape(r)},ps.prototype.prod=function(t,e){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.prod(t,e);var n=cn(t.shape,e),r=n[0],o=L(n[1]),i=t.as2D(-1,o),a=Ot(t.dtype);return this.reduce(i,"prod",a).reshape(r)},ps.prototype.unsortedSegmentSum=function(t,e,n){var r=0,o=pn([r],t.rank),i=t;null!=o&&(i=t.transpose(o),r=dn(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=L([i.shape[r]]),u=i.as2D(-1,s),c=Ot(t.dtype),l=this.segOpCompute(u,"unsortedSegmentSum",e,c,n).reshape(a);return null!=o&&(l=l.transpose(fn(o))),l},ps.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=K(t,Math.floor(Math.sqrt(t)));!r;)e<n||n===t?r=!0:n=K(t,n+1);return n}(a,o),u=new Ta({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=Mn(0,o).tile([a/s]),this.segOpCompute(p,e,n,r,o))},ps.prototype.argMinMaxReduce=function(t,e,n){var r=[e];if(hn("arg"+n.charAt(0).toUpperCase()+n.slice(1),r,t.rank),!_.getBool("WEBGL_PACK_REDUCE")||t.rank<=2){var o=cn(t.shape,r),i=o[0],a=L(o[1]),s=t.as2D(-1,a);return this.argReduce(s,n).reshape(i)}return this.argReducePacked(t,n)},ps.prototype.argMin=function(t,e){return this.argMinMaxReduce(t,e,"min")},ps.prototype.argMax=function(t,e){return this.argMinMaxReduce(t,e,"max")},ps.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 xi(t.shape,n,r);return this.compileAndRun(o,[t])},ps.prototype.equal=function(t,e){if(_.getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(equal(a, b));\n","bool");var n=new ti("return float(a == b);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},ps.prototype.notEqual=function(t,e){if(_.getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(notEqual(a, b));\n","bool");var n=new ti("return float(a != b);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},ps.prototype.less=function(t,e){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.less(t,e);if(_.getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(lessThan(a, b));\n","bool");var n=new ti("return float(a < b);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},ps.prototype.lessEqual=function(t,e){if(_.getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(lessThanEqual(a, b));\n","bool");var n=new ti("return float(a <= b);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},ps.prototype.greater=function(t,e){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.greater(t,e);if(_.getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(greaterThan(a, b));\n","bool");var n=new ti("return float(a > b);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},ps.prototype.greaterEqual=function(t,e){if(_.getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(greaterThanEqual(a, b));\n","bool");var n=new ti("return float(a >= b);",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"bool");return this.compileAndRun(n,[t,e],r)},ps.prototype.logicalNot=function(t){var e=new Ka(t.shape,"return float(!(x >= 1.0));");return this.compileAndRun(e,[t])},ps.prototype.logicalAnd=function(t,e){if(_.getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return vec4(\n    vec4(greaterThanEqual(a, vec4(1.0))) *\n    vec4(greaterThanEqual(b, vec4(1.0))));\n","bool");var n=new ti("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)},ps.prototype.logicalOr=function(t,e){if(_.getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  return min(\n    vec4(greaterThanEqual(a, vec4(1.0))) +\n    vec4(greaterThanEqual(b, vec4(1.0))),\n    vec4(1.0));\n","bool");var n=new ti("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)},ps.prototype.select=function(t,e,n){var r=new Da(t.rank,e.shape,e.rank),o=this.makeOutputArray(r.outputShape,Pt(e.dtype,n.dtype));return this.compileAndRun(r,[t,e,n],o)},ps.prototype.where=function(t){en("tf.where() in webgl locks the UI thread. Call tf.whereAsync() instead");var e=t.dataSync();return ko(t.shape,e)},ps.prototype.topk=function(t,e,n){return So(t.dataSync(),t.shape,t.dtype,e)},ps.prototype.min=function(t,e){hn("min",e,t.rank);var n=cn(t.shape,e),r=n[0],o=L(n[1]),i=t.as2D(-1,o);return this.reduce(i,"min",i.dtype).reshape(r)},ps.prototype.minimum=function(t,e){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.minimum(t,e);var n=_.getBool("WEBGL_PACK_BINARY_OPERATIONS")?new ni("\n  vec4 result = vec4(min(a, b));\n  vec4 isNaN = min(vec4(isnan(a)) + vec4(isnan(b)), vec4(1.0));\n  \n  result.r = isNaN.r > 0. ? NAN : result.r;\n  result.g = isNaN.g > 0. ? NAN : result.g;\n  result.b = isNaN.b > 0. ? NAN : result.b;\n  result.a = isNaN.a > 0. ? NAN : result.a;\n\n  return result;\n",t.shape,e.shape):new ti("\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])},ps.prototype.mod=function(t,e){var n=_.getBool("WEBGL_PACK_BINARY_OPERATIONS")?new ni("\n  vec4 result = mod(a, b);\n  vec4 isNaN = vec4(equal(b, vec4(0.0)));\n  \n  result.r = isNaN.r > 0. ? NAN : result.r;\n  result.g = isNaN.g > 0. ? NAN : result.g;\n  result.b = isNaN.b > 0. ? NAN : result.b;\n  result.a = isNaN.a > 0. ? NAN : result.a;\n\n  return result;\n",t.shape,e.shape):new ti("if (b == 0.0) return NAN;\n  return mod(a, b);",t.shape,e.shape);return this.compileAndRun(n,[t,e])},ps.prototype.max=function(t,e){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.max(t,e);hn("max",e,t.rank);var n=cn(t.shape,e),r=n[0],o=L(n[1]),i=t.as2D(-1,o);return this.reduce(i,"max",i.dtype).reshape(r)},ps.prototype.maximum=function(t,e){if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.maximum(t,e);var n=_.getBool("WEBGL_PACK_BINARY_OPERATIONS")?new ni("\n  vec4 result = vec4(max(a, b));\n  vec4 isNaN = min(vec4(isnan(a)) + vec4(isnan(b)), vec4(1.0));\n  \n  result.r = isNaN.r > 0. ? NAN : result.r;\n  result.g = isNaN.g > 0. ? NAN : result.g;\n  result.b = isNaN.b > 0. ? NAN : result.b;\n  result.a = isNaN.a > 0. ? NAN : result.a;\n\n  return result;\n",t.shape,e.shape):new ti("\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])},ps.prototype.all=function(t,e){hn("all",e,t.rank);var n=cn(t.shape,e),r=n[0],o=L(n[1]),i=t.as2D(-1,o);return this.reduce(i,"all",i.dtype).reshape(r)},ps.prototype.any=function(t,e){hn("any",e,t.rank);var n=cn(t.shape,e),r=n[0],o=L(n[1]),i=t.as2D(-1,o);return this.reduce(i,"any",i.dtype).reshape(r)},ps.prototype.squaredDifference=function(t,e){var n=_.getBool("WEBGL_PACK_BINARY_OPERATIONS")?new ni("return (a - b) * (a - b);",t.shape,e.shape):new ti("return (a - b) * (a - b);",t.shape,e.shape);return this.compileAndRun(n,[t,e])},ps.prototype.realDivide=function(t,e){if(_.getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  // vec4 one = vec4(equal(a, b));\n  // return one + (vec4(1.0) - one) * a / b;\n  vec4 result = a / b;\n  if(b.x == 0.0) {\n    result.x = NAN;\n  } else if(a.x == b.x) {\n    result.x = 1.;\n  }\n  if(b.y == 0.0) {\n    result.y = NAN;\n  } else if(a.y == b.y) {\n    result.y = 1.;\n  }\n  if(b.z == 0.0) {\n    result.z = NAN;\n  } else if(a.z == b.z) {\n    result.z = 1.;\n  }\n  if(b.w == 0.0) {\n    result.w = NAN;\n  } else if(a.w == b.w) {\n    result.w = 1.;\n  }\n\n  return result;\n","float32",!0);var n=new ti("\nif (b == 0.0) {\n  return NAN;\n}\nif (a == b) {\n  return 1.0;\n};\nreturn a / b;",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"float32");return this.compileAndRun(n,[t,e],r)},ps.prototype.floorDiv=function(t,e){if(_.getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,"\n  ivec4 ia = round(a);\n  ivec4 ib = round(b);\n  bvec4 cond = notEqual(ib, ivec4(0));\n  ivec4 result = ivec4(0);\n  vec4 s = sign(a) * sign(b);\n\n  // Windows (D3D) wants guaranteed non-zero int division at compile-time.\n  if (cond[0]) {\n    result[0] = idiv(ia[0], ib[0], s[0]);\n  }\n  if (cond[1]) {\n    result[1] = idiv(ia[1], ib[1], s[1]);\n  }\n  if (cond[2]) {\n    result[2] = idiv(ia[2], ib[2], s[2]);\n  }\n  if (cond[3]) {\n    result[3] = idiv(ia[3], ib[3], s[3]);\n  }\n  return vec4(result);\n","int32");var n=new ti("\n  float s = sign(a) * sign(b);\n  int ia = round(a);\n  int ib = round(b);\n  if (ib != 0) {\n    // Windows (D3D) wants guaranteed non-zero int division at compile-time.\n    return float(idiv(ia, ib, s));\n  } else {\n    return NAN;\n  }\n",t.shape,e.shape),r=this.makeOutputArray(n.outputShape,"int32");return this.compileAndRun(n,[t,e],r)},ps.prototype.add=function(t,e){if("complex64"===t.dtype&&"complex64"===e.dtype)return this.complexSeparableBinaryOp(t,e,Yo);if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.add(t,e);var n=Pt(t.dtype,e.dtype);if(_.getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,Yo,n);var r=new ti(Yo,t.shape,e.shape),o=this.makeOutputArray(r.outputShape,n);return this.compileAndRun(r,[t,e],o)},ps.prototype.packedUnaryOp=function(t,e,n){var r=new ss(t.shape,e),o=this.makePackedTensor(r.outputShape,n);return this.compileAndRun(r,[t],o)},ps.prototype.packedBinaryOp=function(t,e,n,r,o){void 0===o&&(o=!1);var i=new ni(n,t.shape,e.shape,o),a=this.makePackedTensor(i.outputShape,r);return this.compileAndRun(i,[t,e],a)},ps.prototype.complexSeparableBinaryOp=function(s,u,c){var l=this,t=this.texData.get(s.dataId),e=this.texData.get(u.dataId),n=[[t.complexTensors.real,e.complexTensors.real],[t.complexTensors.imag,e.complexTensors.imag]].map(function(t){var e=t[0],n=t[1],r=l.makeComplexComponentTensorHandle(s,e),o=l.makeComplexComponentTensorHandle(u,n),i=new ti(c,s.shape,u.shape),a=l.makeOutputArray(i.outputShape,Pt(e.dtype,n.dtype));return l.compileAndRun(i,[r,o],a)}),r=n[0],o=n[1],i=this.complex(r,o);return r.dispose(),o.dispose(),i},ps.prototype.makeComplexComponentTensorHandle=function(t,e){return{dataId:e.dataId,dtype:e.dtype,shape:t.shape}},ps.prototype.addN=function(t){if(1===t.length)return t[0];if(t.length>_.get("WEBGL_MAX_TEXTURES_IN_SHADER")){var e=Math.floor(t.length/2),n=this.addN(t.slice(0,e)),r=this.addN(t.slice(e));return this.addN([n,r])}var o=t.map(function(t){return t.dtype}).reduce(function(t,e){return Pt(t,e)}),i=t.map(function(t){return t.shape}),a=_.getBool("WEBGL_PACK"),s=a?new Ao(t[0].shape,i):new No(t[0].shape,i),u=a?this.makePackedTensor(s.outputShape,o):this.makeOutputArray(s.outputShape,o);return this.compileAndRun(s,t,u)},ps.prototype.subtract=function(t,e){if("complex64"===t.dtype&&"complex64"===e.dtype)return this.complexSeparableBinaryOp(t,e,Jo);if(this.shouldExecuteOnCPU([t,e]))return this.cpuBackend.subtract(t,e);var n=Pt(t.dtype,e.dtype);if(_.getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(t,e,Jo,t.dtype);var r=new ti(Jo,t.shape,e.shape),o=this.makeOutputArray(r.outputShape,n);return this.compileAndRun(r,[t,e],o)},ps.prototype.pow=function(t,e){var n=_.getBool("WEBGL_PACK_BINARY_OPERATIONS"),r=n?new ni("\n  // isModRound1 has 1 for components with round(mod(b, 2.0)) == 1, 0 otherwise.\n  vec4 isModRound1 = vec4(equal(round(mod(b, 2.0)), ivec4(1)));\n  vec4 multiplier = sign(a) * isModRound1 + (vec4(1.0) - isModRound1);\n  vec4 result = multiplier * pow(abs(a), b);\n\n  // Ensure that a^0 = 1, including 0^0 = 1 as this correspond to TF and JS\n  bvec4 isExpZero = equal(b, vec4(0.0));\n  result.r = isExpZero.r ? 1.0 : result.r;\n  result.g = isExpZero.g ? 1.0 : result.g;\n  result.b = isExpZero.b ? 1.0 : result.b;\n  result.a = isExpZero.a ? 1.0 : result.a;\n\n  vec4 isNaN = vec4(lessThan(a, vec4(0.0))) * vec4(lessThan(floor(b), b));\n  \n  result.r = isNaN.r > 0. ? NAN : result.r;\n  result.g = isNaN.g > 0. ? NAN : result.g;\n  result.b = isNaN.b > 0. ? NAN : result.b;\n  result.a = isNaN.a > 0. ? NAN : result.a;\n\n  return result;\n",t.shape,e.shape):new ti("\nif(a < 0.0 && floor(b) < b){\n  return NAN;\n}\nif (b == 0.0) {\n  return 1.0;\n}\nreturn (round(mod(b, 2.0)) != 1) ?\n    pow(abs(a), b) : sign(a) * pow(abs(a), b);\n",t.shape,e.shape),o=Pt(t.dtype,e.dtype),i=n?this.makePackedTensor(r.outputShape,o):this.makeOutputArray(r.outputShape,o);return this.compileAndRun(r,[t,e],i)},ps.prototype.ceil=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.ceil(t);if(_.getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,ts,t.dtype);var e=new Ka(t.shape,ts);return this.compileAndRun(e,[t])},ps.prototype.floor=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.floor(t);if(_.getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,es,t.dtype);var e=new Ka(t.shape,es);return this.compileAndRun(e,[t])},ps.prototype.sign=function(t){var e=new Ka(t.shape,"\n  if (isnan(x)) { return 0.0; }\n  return sign(x);\n");return this.compileAndRun(e,[t])},ps.prototype.isNaN=function(t){var e=new Ka(t.shape,"return float(isnan(x));"),n=this.makeOutputArray(e.outputShape,"bool");return this.compileAndRun(e,[t],n)},ps.prototype.isInf=function(t){var e=new Ka(t.shape,"return float(isinf(x));"),n=this.makeOutputArray(e.outputShape,"bool");return this.compileAndRun(e,[t],n)},ps.prototype.isFinite=function(t){var e=new Ka(t.shape,"return float(!isnan(x) && !isinf(x));"),n=this.makeOutputArray(e.outputShape,"bool");return this.compileAndRun(e,[t],n)},ps.prototype.round=function(t){var e=new Ka(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])},ps.prototype.exp=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.exp(t);if(_.getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,ns,t.dtype);var e=new Ka(t.shape,ns);return this.compileAndRun(e,[t])},ps.prototype.expm1=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.expm1(t);if(_.getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,rs,t.dtype);var e=new Ka(t.shape,rs);return this.compileAndRun(e,[t])},ps.prototype.log=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.log(t);if(_.getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,"\n  vec4 result = log(x);\n  vec4 isNaN = vec4(lessThan(x, vec4(0.0)));\n  result.r = isNaN.r == 1.0 ? NAN : result.r;\n  result.g = isNaN.g == 1.0 ? NAN : result.g;\n  result.b = isNaN.b == 1.0 ? NAN : result.b;\n  result.a = isNaN.a == 1.0 ? NAN : result.a;\n\n  return result;\n",t.dtype);var e=new Ka(t.shape,"if (x < 0.0) return NAN;\n  return log(x);");return this.compileAndRun(e,[t])},ps.prototype.log1p=function(t){var e=new Ka(t.shape,"return log(1.0 + x);");return this.compileAndRun(e,[t])},ps.prototype.sqrt=function(t){var e=new Ka(t.shape,"return sqrt(x);");return this.compileAndRun(e,[t])},ps.prototype.rsqrt=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.rsqrt(t);var e=new Ka(t.shape,"return inversesqrt(x);");return this.compileAndRun(e,[t])},ps.prototype.square=function(t){var e=new Ka(t.shape,"return x * x;");return this.compileAndRun(e,[t])},ps.prototype.reciprocal=function(t){var e=new Ka(t.shape,"return 1.0 / x;");return this.compileAndRun(e,[t])},ps.prototype.relu=function(t){var e;return e=_.getBool("WEBGL_PACK")?new ss(t.shape,is):new Ka(t.shape,Ja),this.compileAndRun(e,[t])},ps.prototype.prelu=function(t,e){var n=_.getBool("WEBGL_PACK_BINARY_OPERATIONS")?new ni(ei,t.shape,e.shape):new ti(Zo,t.shape,e.shape);return this.compileAndRun(n,[t,e])},ps.prototype.elu=function(t){if(_.getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,as,t.dtype);var e=new Ka(t.shape,Qa);return this.compileAndRun(e,[t])},ps.prototype.eluDer=function(t,e){var n=_.getBool("WEBGL_PACK_BINARY_OPERATIONS")?new ni("\n  vec4 bGTEZero = vec4(greaterThanEqual(b, vec4(0.)));\n  return (bGTEZero * a) + ((vec4(1.0) - bGTEZero) * (a * (b + vec4(1.0))));\n",t.shape,e.shape):new ti("return (b >= 1.0) ? a : a * (b + 1.0);",t.shape,e.shape);return this.compileAndRun(n,[t,e])},ps.prototype.selu=function(t){var e=new Ka(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])},ps.prototype.int=function(t){var e=new Ka(t.shape,"return float(int(x));"),n=this.makeOutputArray(e.outputShape,"int32");return this.compileAndRun(e,[t],n)},ps.prototype.clip=function(t,e,n){var r,o=(r=_.getBool("WEBGL_PACK_CLIP")?new oi(t.shape):new ri(t.shape)).getCustomSetupFunc(e,n);return this.compileAndRun(r,[t],null,o)},ps.prototype.abs=function(t){if(this.shouldExecuteOnCPU([t]))return this.cpuBackend.abs(t);if(_.getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(t,Ya,t.dtype);var e=new Ka(t.shape,Ya);return this.compileAndRun(e,[t])},ps.prototype.complexAbs=function(t){var e=this.texData.get(t.dataId),n=new ii(t.shape),r=[this.makeComplexComponentTensorHandle(t,e.complexTensors.real),this.makeComplexComponentTensorHandle(t,e.complexTensors.imag)];return this.compileAndRun(n,r)},ps.prototype.sigmoid=function(t){var e=new Ka(t.shape,"return 1.0 / (1.0 + exp(-1.0 * x));");return this.compileAndRun(e,[t])},ps.prototype.softplus=function(t){var e=new Ka(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])},ps.prototype.sin=function(t){var e=new Ka(t.shape,"if (isnan(x)) return x;\n  return sin(x);\n");return this.compileAndRun(e,[t])},ps.prototype.cos=function(t){var e=new Ka(t.shape,"if (isnan(x)) return x;\n  return cos(x);\n");return this.compileAndRun(e,[t])},ps.prototype.tan=function(t){var e=new Ka(t.shape,"return tan(x);");return this.compileAndRun(e,[t])},ps.prototype.asin=function(t){var e=new Ka(t.shape,"return asin(x);");return this.compileAndRun(e,[t])},ps.prototype.acos=function(t){var e=new Ka(t.shape,"return acos(x);");return this.compileAndRun(e,[t])},ps.prototype.atan=function(t){var e=new Ka(t.shape,"if (isnan(x)) return x;\n  return atan(x);\n");return this.compileAndRun(e,[t])},ps.prototype.atan2=function(t,e){var n=_.getBool("WEBGL_PACK_BINARY_OPERATIONS")?new ni("\n  vec4 result = atan(a, b);\n  vec4 isNaN = min(vec4(isnan(a)) + vec4(isnan(b)), vec4(1.0));\n  \n  result.r = isNaN.r > 0. ? NAN : result.r;\n  result.g = isNaN.g > 0. ? NAN : result.g;\n  result.b = isNaN.b > 0. ? NAN : result.b;\n  result.a = isNaN.a > 0. ? NAN : result.a;\n\n  return result;\n",t.shape,e.shape):new ti("\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])},ps.prototype.sinh=function(t){var e=new Ka(t.shape,"\n  float e2x = exp(x);\n  return (e2x - 1.0 / e2x) / 2.0;\n");return this.compileAndRun(e,[t])},ps.prototype.cosh=function(t){var e=new Ka(t.shape,"\n  float e2x = exp(-x);\n  return (e2x + 1.0 / e2x) / 2.0;\n");return this.compileAndRun(e,[t])},ps.prototype.tanh=function(t){var e=new Ka(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])},ps.prototype.asinh=function(t){var e=new Ka(t.shape,"return log(x + sqrt(x * x + 1.0));");return this.compileAndRun(e,[t])},ps.prototype.acosh=function(t){var e=new Ka(t.shape,"if (isnan(x)) return x;\n  if (x < 1.0) return NAN;\n  return log(x + sqrt(x * x - 1.0));");return this.compileAndRun(e,[t])},ps.prototype.atanh=function(t){var e=new Ka(t.shape,"if (isnan(x)) return x;\n  if ((x < -1.0) || (x > 1.0)) return NAN;\n  return (log(1.0 + x) - log(1.0 - x)) / 2.0;");return this.compileAndRun(e,[t])},ps.prototype.erf=function(t){var e=new Ka(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])},ps.prototype.step=function(t,e){var n,r=new Ka(t.shape,(void 0===(n=e)&&(n=0),Xa+"\n    return x > 0.0 ? 1.0 : float("+n+");\n  "));return this.compileAndRun(r,[t])},ps.prototype.conv2dByMatMul=function(t,e,n,r,o,i){var a=t.shape,s=this.texData.get(t.dataId),u=n.inChannels,c=a[0]*a[1]*a[2],l=n.outChannels,h="channelsLast"===n.dataFormat,p=(1==c||1===l)&&1e3<u,f=a[2]%2!=0&&!!s.isPacked;if(p||!_.getBool("WEBGL_LAZILY_UNPACK")||!_.getBool("WEBGL_PACK_BINARY_OPERATIONS")||!f){var d=h?a[0]*a[1]*a[2]:a[0]*a[2]*a[3],v=this.reshape(t,[1,d,n.inChannels]),m=this.reshape(e,[1,n.inChannels,n.outChannels]);return this.reshape(this.fusedBatchMatMul({a:v,b:m,transposeA:!1,transposeB:!1,bias:r,activation:o,preluActivationWeights:i}),n.outShape)}var g=h?a[0]*a[1]*(a[2]+1):a[0]*a[2]*(a[3]+1),y=yt.make([1,g,n.inChannels],{dataId:t.dataId},t.dtype,this),x=s.shape;s.shape=s.shape.slice(),s.shape[s.shape.length-2]++,O(ze(s.shape,y.shape),function(){return"packed reshape "+s.shape+" to "+y.shape+" isn't free"});var b=this.reshape(e,[1,n.inChannels,n.outChannels]),w=this.fusedBatchMatMul({a:y,b:b,transposeA:!1,transposeB:!1,bias:r,activation:o,preluActivationWeights:i}),C=this.texData.get(w.dataId);return O(C.isPacked,function(){return"batchMatMul result is expected to be packed"}),s.shape=x,C.shape=n.outShape,yt.make(n.outShape,{dataId:w.dataId},w.dtype,this)},ps.prototype.conv2dWithIm2Row=function(t,e,n,r,o,i){var a=n.filterWidth,s=n.filterHeight,u=n.inChannels,c=n.outWidth,l=n.outHeight,h="channelsLast"===n.dataFormat,p=a*s*u,f=l*c,d=[p,f],v=t.squeeze([0]),m=e.reshape([1,p,-1]),g=new aa(d,v.shape,n),y=this.compileAndRun(g,[v]).reshape([1,d[0],d[1]]),x=null!=r,b=null!=i,w=o?ls(o,!0):null,C=new pa(y.shape,[1,f,n.outChannels],!0,!1,x,w,b),E=[y,m];r&&E.push(r),b&&E.push(i);var _=this.compileAndRun(C,E);return h?_.reshape([1,l,c,n.outChannels]):_.reshape([1,n.outChannels,l,c])},ps.prototype.fusedConv2d=function(t,e,n,r,o,i){if(1===n.filterHeight&&1===n.filterWidth&&1===n.dilationHeight&&1===n.dilationWidth&&1===n.strideHeight&&1===n.strideWidth&&("SAME"===n.padInfo.type||"VALID"===n.padInfo.type))return this.conv2dByMatMul(t,e,n,r,o,i);if(_.getBool("WEBGL_CONV_IM2COL")&&1===t.shape[0])return this.conv2dWithIm2Row(t,e,n,r,o,i);var a=null!=r,s=null!=i,u=o?ls(o,!1):null,c=new di(n,a,u,s),l=[t,e];return r&&l.push(r),i&&l.push(i),this.compileAndRun(c,l)},ps.prototype.conv2d=function(t,e,n){if(1===n.filterHeight&&1===n.filterWidth&&1===n.dilationHeight&&1===n.dilationWidth&&1===n.strideHeight&&1===n.strideWidth&&("SAME"===n.padInfo.type||"VALID"===n.padInfo.type))return this.conv2dByMatMul(t,e,n);if(_.getBool("WEBGL_CONV_IM2COL")&&1===t.shape[0])return this.conv2dWithIm2Row(t,e,n);var r=new di(n);return this.compileAndRun(r,[t,e])},ps.prototype.conv2dDerInput=function(t,e,n){var r=new ci(n);return this.compileAndRun(r,[t,e])},ps.prototype.conv2dDerFilter=function(t,e,n){var r=new ui(n);return this.compileAndRun(r,[t,e])},ps.prototype.depthwiseConv2D=function(t,e,n){var r;return _.getBool("WEBGL_PACK_DEPTHWISECONV")&&n.strideWidth<=2&&n.outChannels/n.inChannels==1?(r=new gi(n),this.compileAndRun(r,[t,e],this.makePackedTensor(n.outShape,t.dtype))):(r=new mi(n),this.compileAndRun(r,[t,e]))},ps.prototype.depthwiseConv2DDerInput=function(t,e,n){var r=new fi(n);return this.compileAndRun(r,[t,e])},ps.prototype.depthwiseConv2DDerFilter=function(t,e,n){var r=new pi(n);return this.compileAndRun(r,[t,e])},ps.prototype.conv3d=function(t,e,n){var r=new vi(n);return this.compileAndRun(r,[t,e])},ps.prototype.conv3dDerInput=function(t,e,n){var r=new hi(n);return this.compileAndRun(r,[t,e])},ps.prototype.conv3dDerFilter=function(t,e,n){var r=new li(n);return this.compileAndRun(r,[t,e])},ps.prototype.maxPool=function(t,e){var n=new xa(e,"max",!1),r=this.makeOutputArray(n.outputShape,t.dtype);return this.compileAndRun(n,[t],r)},ps.prototype.avgPool=function(t,e){var n=new xa(e,"avg",!1),r=this.makeOutputArray(n.outputShape,"float32");return this.compileAndRun(n,[t],r)},ps.prototype.maxPoolBackprop=function(t,e,n,r){var o=new xa(r,"max",!0),i=this.compileAndRun(o,[e]),a=new la(r),s=this.makeOutputArray(a.outputShape,e.dtype),u=this.compileAndRun(a,[t,i],s);return i.dispose(),u},ps.prototype.avgPoolBackprop=function(t,e,n){var r=new jo(n),o=this.makeOutputArray(r.outputShape,e.dtype);return this.compileAndRun(r,[t],o)},ps.prototype.cast=function(t,e){return go(t,e,this)},ps.prototype.unstack=function(t,e){for(var n=t.shape[e],r=new Array(t.rank-1),o=0,i=0;i<t.rank;i++)i!==e&&(r[o++]=t.shape[i]);var a=new Array(t.rank).fill(0),s=t.shape.slice();s[e]=1;var u=new Array(n);for(i=0;i<u.length;i++)u[a[e]=i]=this.slice(t,a,s).reshape(r);return u},ps.prototype.avgPool3d=function(t,e){var n=new ba(e,"avg",!1),r=this.makeOutputArray(n.outputShape,"float32");return this.compileAndRun(n,[t],r)},ps.prototype.avgPool3dBackprop=function(t,e,n){var r=new qo(n),o=this.makeOutputArray(r.outputShape,e.dtype);return this.compileAndRun(r,[t],o)},ps.prototype.maxPool3d=function(t,e){var n=new ba(e,"max",!1),r=this.makeOutputArray(n.outputShape,"float32");return this.compileAndRun(n,[t],r)},ps.prototype.maxPool3dBackprop=function(t,e,n,r){var o=new ba(r,"max",!0),i=this.compileAndRun(o,[e]),a=new ha(r),s=this.makeOutputArray(a.outputShape,e.dtype),u=this.compileAndRun(a,[t,i],s);return i.dispose(),u},ps.prototype.reshape=function(t,e){var n=this.texData.get(t.dataId);return!n.isPacked||ze(t.shape,e)||null!==n.texture&&ze(n.shape,e)?yo(t,e):this.packedReshape(t,e)},ps.prototype.resizeBilinear=function(t,e,n,r){var o=_.getBool("WEBGL_PACK_IMAGE_OPERATIONS")?new Ra(t.shape,e,n,r):new _a(t.shape,e,n,r);return this.compileAndRun(o,[t])},ps.prototype.resizeBilinearBackprop=function(t,e,n){var r=new Ea(t,e,n);return this.compileAndRun(r,[t])},ps.prototype.resizeNearestNeighbor=function(t,e,n,r){var o=new Sa(t.shape,e,n,r);return this.compileAndRun(o,[t])},ps.prototype.resizeNearestNeighborBackprop=function(t,e,n){var r=new Ia(t,e,n);return this.compileAndRun(r,[t])},ps.prototype.multinomial=function(t,e,n,r){var o=e?t:Xr(t),i=o.shape[0],a=o.shape[1],s=new fa(i,a,n),u=this.makeOutputArray(s.outputShape,"int32"),c=s.getCustomSetupFunc(r);return this.compileAndRun(s,[o],u,c)},ps.prototype.oneHot=function(t,e,n,r){var o=new da(t.size,e,n,r);return this.compileAndRun(o,[t])},ps.prototype.diag=function(t){var e=new Ii(t.size);return this.compileAndRun(e,[t])},ps.prototype.nonMaxSuppression=function(t,e,n,r,o){return en("tf.nonMaxSuppression() in webgl locks the UI thread. Call tf.nonMaxSuppressionAsync() instead"),Eo(t.dataSync(),e.dataSync(),n,r,o)},ps.prototype.cropAndResize=function(t,e,n,r,o,i){var a=new yi(t.shape,e.shape,r,o,i);return this.compileAndRun(a,[t,e,n])},ps.prototype.depthToSpace=function(t,e,n){O(1<e,function(){return"blockSize should be > 1 for depthToSpace, but was: "+e});var r=t.shape[0],o="NHWC"===n?t.shape[1]:t.shape[2],i="NHWC"===n?t.shape[2]:t.shape[3],a="NHWC"===n?t.shape[3]:t.shape[1],s=o*e,u=i*e,c=a/(e*e),l=new Ri("NHWC"===n?[r,s,u,c]:[r,c,s,u],e,n);return this.compileAndRun(l,[t])},ps.prototype.split=function(t,e,n){return Ro(t,e,n)},ps.prototype.scatterND=function(t,e,n){var r=Wr(0,t,n),o=r.sliceRank,i=r.numUpdates,a=r.sliceSize,s=r.strides,u=r.outputSize,c=[u/a,a],l=t.reshape([i,o]),h=e.reshape([i,a]);if(0===u)return yo(wn([]),n);var p=En(0),f=new Aa(i,o,l.rank,h.rank,s,c);return this.compileAndRun(f,[h,l,p]).reshape(n)},ps.prototype.sparseToDense=function(t,e,n,r){var o=Wr(0,t,n),i=o.sliceRank,a=o.numUpdates,s=o.strides,u=o.outputSize,c=new Aa(a,i,t.rank,e.rank,s,[u,1],!1);return this.compileAndRun(c,[e,t,r]).reshape(n)},ps.prototype.fft=function(t){return this.fftImpl(t,!1)},ps.prototype.ifft=function(t){return this.fftImpl(t,!0)},ps.prototype.fftImpl=function(t,e){var n=this.texData.get(t.dataId),r=new Ti("return real * expR - imag * expI;",t.shape,e),o=new Ti("return real * expI + imag * expR;",t.shape,e),i=[this.makeComplexComponentTensorHandle(t,n.complexTensors.real),this.makeComplexComponentTensorHandle(t,n.complexTensors.imag)],a=this.compileAndRun(r,i),s=this.compileAndRun(o,i),u=this.complex(a,s).as2D(t.shape[0],t.shape[1]);return a.dispose(),s.dispose(),u},ps.prototype.gatherND=function(t,e){var n=e.shape,r=n[n.length-1],o=Br(t,e),i=o[0],a=o[1],s=o[2],u=o[3],c=e.reshape([a,r]),l=t.reshape([t.size/s,s]),h=new Li(r,u,[a,s]);return this.compileAndRun(h,[l,c]).reshape(i)},ps.prototype.fill=function(t,e,n){if("string"===(n=n||q(e))){var r=T(n,L(t));return r.fill(e),yt.make(t,{values:r},n)}var o=new Di(t,e),i=o.getCustomSetupFunc(e),a=this.makeOutputArray(t,n);return this.compileAndRun(o,[],a,i)},ps.prototype.onesLike=function(t){if("string"===t.dtype)throw new Error("onesLike is not supported under string dtype");return this.fill(t.shape,1,t.dtype)},ps.prototype.zerosLike=function(t){return this.fill(t.shape,"string"===t.dtype?"":0,t.dtype)},ps.prototype.linspace=function(t,e,n){return xo(t,e,n)},ps.prototype.makeOutputArray=function(t,e){return yt.make(t,{},e,this)},ps.prototype.makePackedTensor=function(t,e){var n=yt.make(t,{},e,this);return this.texData.get(n.dataId).isPacked=!0,n},ps.prototype.unpackTensor=function(t){var e=new us(t.shape);return this.compileAndRun(e,[t],yt.make(e.outputShape,{},t.dtype,this))},ps.prototype.packTensor=function(t){var e=new va(t.shape);return this.compileAndRun(e,[t],this.makePackedTensor(t.shape,t.dtype),null,!0)},ps.prototype.packedReshape=function(t,e){var n=t.reshape([Pe(t.shape)].concat(Oe(t.shape))),r=[Pe(e)].concat(Oe(e)),o=new Ca(r,n.shape);return this.compileAndRun(o,[n]).reshape(e)},ps.prototype.decode=function(t){var e,n=this.texData.get(t),r=n.isPacked,o=n.shape,i=n.dtype,a=Be(o),s=oe(o),u=this.makeTensorHandle(o,"float32");return this.texData.get(u.dataId).isPacked=!0,this.texData.get(u.dataId).dtype=i,this.texData.get(u.dataId).texShape=s.map(function(t){return 2*t}),e=r?new _i(a,s):new Ei(a,s),this.compileAndRun(e,[{shape:a,dtype:i,dataId:t}],u,null,!0),u},ps.prototype.compileAndRun=function(o,t,e,n,r){var i=this;if(void 0===r&&(r=!1),null==e&&(e=o.usesPackedTextures?this.makePackedTensor(o.outputShape,t[0].dtype):this.makeOutputArray(o.outputShape,t[0].dtype)),0===e.size)return this.texData.get(e.dataId).values=A(e.dtype,0),e;var a=t.map(function(t){if("complex64"===t.dtype)throw new Error("GPGPUProgram does not support complex64 input. For complex64 dtypes, please separate the program into real and imaginary parts.");var e=i.texData.get(t.dataId);if(null==e.texture){if(!o.usesPackedTextures&&L(t.shape)<=_.getNumber("WEBGL_SIZE_UPLOAD_UNIFORM"))return{shape:t.shape,texData:null,isUniform:!0,uniformValues:e.values};o.usesPackedTextures&&(e.isPacked=!0,e.shape=t.shape)}else if(!!e.isPacked!=!!o.usesPackedTextures)t=e.isPacked?i.unpackTensor(t):i.packTensor(t),e=i.texData.get(t.dataId);else if(e.isPacked&&!ze(e.shape,t.shape)){var n=t,r=t.shape;t.shape=e.shape,t=i.packedReshape(t,r),e=i.texData.get(t.dataId),n.shape=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="";a.concat(n).forEach(function(t){var e=null!=t.texData&&null!=t.texData.slice&&0<t.texData.slice.flatOffset,n=t.isUniform?"uniform":t.texData.texShape;r+=t.shape+"_"+n+"_"+e});var o=t.userCode;return t.constructor.name+"_"+r+"_"+o}(o,0,u),l=this.getAndSaveBinary(c,function(){return function(t,r,e,n){var o=r.userCode,i=e.map(function(t,e){var n={logicalShape:t.shape,texShape:t.isUniform?null:t.texData.texShape,isUniform:t.isUniform,isPacked:!t.isUniform&&t.texData.isPacked,flatOffset:null};return null!=t.texData&&null!=t.texData.slice&&0<t.texData.slice.flatOffset&&(n.flatOffset=t.texData.slice.flatOffset),{name:r.variableNames[e],shapeInfo:n}}),a=i.map(function(t){return t.shapeInfo}),s={logicalShape:n.shape,texShape:n.texData.texShape,isUniform:!1,isPacked:n.texData.isPacked,flatOffset:null},u=Lo(i,s,o,r.usesPackedTextures),c=t.createProgram(u),l=null,h=t.getUniformLocation(c,"NAN",!1);1===_.getNumber("WEBGL_VERSION")&&(l=t.getUniformLocation(c,"INFINITY",!1));for(var p={},f=0;f<r.variableNames.length;f++){var d=r.variableNames[f];p[d]=t.getUniformLocation(c,d,!1),p["offset"+d]=t.getUniformLocation(c,"offset"+d,!1)}return{program:r,source:u,webGLProgram:c,uniformLocations:p,inShapeInfos:a,outShapeInfo:s,infLoc:l,nanLoc:h}}(i.gpgpu,o,a,u)}),h=null!=this.activeTimers;return h&&(s=this.startTimer()),function(a,s,t,e,n){ia(s.inShapeInfos,t),ia([s.outShapeInfo],[e]);var r=e.texData.texture,o=e.texData.texShape;e.texData.isPacked?a.setOutputPackedMatrixTexture(r,o[0],o[1]):a.setOutputMatrixTexture(r,o[0],o[1]),a.setProgram(s.webGLProgram),1===_.getNumber("WEBGL_VERSION")&&null!==s.infLoc&&a.gl.uniform1f(s.infLoc,1/0),null!==s.nanLoc&&a.gl.uniform1f(s.nanLoc,NaN),t.forEach(function(t,e){var n=s.program.variableNames[e],r=s.uniformLocations[n],o=s.uniformLocations["offset"+n];if(null!=r)if(t.isUniform)if(L(t.shape)<2)a.gl.uniform1f(r,t.uniformValues[0]);else{var i=t.uniformValues;i instanceof Float32Array||(i=new Float32Array(i)),a.gl.uniform1fv(r,i)}else null!=t.texData.slice&&null!=o&&a.gl.uniform1i(o,t.texData.slice.flatOffset),a.setInputMatrixTexture(t.texData.texture,r,e)}),null!=n&&n(a,s.webGLProgram),a.executeProgram()}(this.gpgpu,l,a,u,n),h&&(s=this.endTimer(s),this.activeTimers.push({name:o.constructor.name,query:this.getQueryTime(s)})),!_.getBool("WEBGL_LAZILY_UNPACK")&&this.texData.get(e.dataId).isPacked&&!1===r?this.unpackTensor(e):e},ps.prototype.getAndSaveBinary=function(t,e){return t in this.binaryCache||(this.binaryCache[t]=e()),this.binaryCache[t]},ps.prototype.getTextureManager=function(){return this.textureManager},ps.prototype.dispose=function(){this.disposed||(this.textureManager.dispose(),null!=this.canvas&&null!=this.canvas.remove?this.canvas.remove():this.canvas=null,null!=this.fromPixels2DContext&&this.fromPixels2DContext.canvas.remove&&this.fromPixels2DContext.canvas.remove(),this.gpgpuCreatedLocally&&(this.gpgpu.program=null,this.gpgpu.dispose()),this.disposed=!0)},ps.prototype.floatPrecision=function(){var n=this;return null==this.floatPrecisionValue&&(this.floatPrecisionValue=Qe(function(){if(!_.get("WEBGL_RENDER_FLOAT32_ENABLED")){var t=_.getBool("DEBUG");_.set("DEBUG",!1);var e=n.abs(En(1e-8)).dataSync()[0];if(_.set("DEBUG",t),0<e)return 32}return 16})),this.floatPrecisionValue},ps.prototype.epsilon=function(){return 32===this.floatPrecision()?1e-7:1e-4},ps.prototype.uploadToGPU=function(t){var e,n=this.texData.get(t),r=n.shape,o=n.dtype,i=n.values,a=n.texture,s=n.usage,u=n.isPacked;if(null==a){var c,l=null!=this.activeTimers;l&&(c=tt());var h=n.texShape;if(null==h&&(h=Le(r,u),n.texShape=h),null!=i){var p=Be(r),f=void 0,d=h[1],v=h[0],m=i instanceof Uint8Array;f=u?(d=(e=ie(h[0],h[1]))[0],v=e[1],new Ai(p,[v,d],m)):new Ni(p,[v,d],m);var g=this.makeTensorHandle([v,d],o);this.texData.get(g.dataId).usage=m?Kt.PIXELS:Kt.UPLOAD,this.gpgpu.uploadDenseMatrixToTexture(this.getTexture(g.dataId),d,v,i);var y=this.makeTensorHandle(f.outputShape,g.dtype);y.size=L(f.outputShape),this.texData.get(y.dataId).isPacked=u,this.compileAndRun(f,[g],y);var x=this.texData.get(y.dataId);n.texture=x.texture,n.texShape=x.texShape,n.isPacked=x.isPacked,n.usage=x.usage,this.disposeData(g.dataId),this.texData.delete(y.dataId),n.values=null,l&&(this.uploadWaitMs+=tt()-c)}else{var b=this.acquireTexture(h,s,o,u);n.texture=b}}},ps.prototype.convertAndCacheOnCPU=function(t,e){var n=this.texData.get(t),r=n.dtype;return this.releaseGPUData(t),null!=e&&(n.values=function(t,e){if("float32"===e||"complex64"===e)return t;if("int32"!==e&&"bool"!==e)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,r)),n.values},ps.prototype.acquireTexture=function(t,e,n,r){if(this.numBytesInGPU+=this.computeBytes(t,n),!this.warnedAboutMemory&&this.numBytesInGPU>1024*this.numMBBeforeWarning*1024){var o=(this.numBytesInGPU/1024/1024).toFixed(2);this.warnedAboutMemory=!0,console.warn("High memory usage in GPU: "+o+" MB, most likely due to a memory leak")}return this.textureManager.acquireTexture(t,e,r)},ps.prototype.computeBytes=function(t,e){return t[0]*t[1]*U(e)},ps);function ps(t){if(this.gpgpu=t,this.pendingRead=new WeakMap,this.pendingDisposal=new WeakSet,this.dataRefCount=new WeakMap,this.numBytesInGPU=0,this.uploadWaitMs=0,this.downloadWaitMs=0,this.warnedAboutMemory=!1,this.disposed=!1,!_.getBool("HAS_WEBGL"))throw new Error("WebGL is not supported on this device");if(null==t){var e=ee(_.getNumber("WEBGL_VERSION"));this.binaryCache=((n=_.getNumber("WEBGL_VERSION"))in cs||(cs[n]={}),cs[n]),this.gpgpu=new ra(e),this.canvas=e.canvas,this.gpgpuCreatedLocally=!0}else this.binaryCache={},this.gpgpuCreatedLocally=!1,this.canvas=t.gl.canvas;var n;this.textureManager=new 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a,s,u=on(t,"x","batchNorm"),c=on(e,"mean","batchNorm"),l=on(n,"variance","batchNorm");return null!=o&&(a=on(o,"scale","batchNorm")),null!=r&&(s=on(r,"offset","batchNorm")),O(2===u.rank,function(){return"Error in batchNorm3D: x must be rank 3 but got rank "+u.rank+"."}),O(2===c.rank||1===c.rank,function(){return"Error in batchNorm2D: mean must be rank 2 or rank 1 but got rank "+c.rank+"."}),O(2===l.rank||1===l.rank,function(){return"Error in batchNorm2D: variance must be rank 2 or rank 1 but got rank "+l.rank+"."}),null!=a&&O(2===a.rank||1===a.rank,function(){return"Error in batchNorm2D: scale must be rank 2 or rank 1 but got rank "+a.rank+"."}),null!=s&&O(2===s.rank||1===s.rank,function(){return"Error in batchNorm2D: offset must be rank 2 or rank 1 but got rank "+s.rank+"."}),Js(u,c,l,s,a,i)}function Xs(t,e,n,r,o,i){var a,s,u=on(t,"x","batchNorm"),c=on(e,"mean","batchNorm"),l=on(n,"variance","batchNorm");return null!=o&&(a=on(o,"scale","batchNorm")),null!=r&&(s=on(r,"offset","batchNorm")),O(3===u.rank,function(){return"Error in batchNorm3D: x must be rank 3 but got rank "+u.rank+"."}),O(3===c.rank||1===c.rank,function(){return"Error in batchNorm3D: mean must be rank 3 or rank 1 but got rank "+c.rank+"."}),O(3===l.rank||1===l.rank,function(){return"Error in batchNorm3D: variance must be rank 3 or rank 1 but got rank "+l.rank+"."}),null!=a&&O(3===a.rank||1===a.rank,function(){return"Error in batchNorm3D: scale must be rank 3 or rank 1 but got rank "+a.rank+"."}),null!=s&&O(3===s.rank||1===s.rank,function(){return"Error in batchNorm3D: offset must be rank 3 or rank 1 but got rank "+s.rank+"."}),Js(u,c,l,s,a,i)}function Ys(t,e,n,r,o,i){var a,s,u=on(t,"x","batchNorm"),c=on(e,"mean","batchNorm"),l=on(n,"variance","batchNorm");return null!=o&&(a=on(o,"scale","batchNorm")),null!=r&&(s=on(r,"offset","batchNorm")),O(4===u.rank,function(){return"Error in batchNorm4D: x must be rank 4 but got rank "+u.rank+"."}),O(4===c.rank||1===c.rank,function(){return"Error in batchNorm4D: mean must be rank 4 or rank 1 but got rank "+c.rank+"."}),O(4===l.rank||1===l.rank,function(){return"Error in batchNorm4D: variance must be rank 4 or rank 1 but got rank "+l.rank+"."}),null!=a&&O(4===a.rank||1===a.rank,function(){return"Error in batchNorm4D: scale must be rank 4 or rank 1 but got rank "+a.rank+"."}),null!=s&&O(4===s.rank||1===s.rank,function(){return"Error in batchNorm4D: offset must be rank 4 or rank 1 but got rank "+s.rank+"."}),Js(u,c,l,s,a,i)}function Js(t,e,n,r,o,v){null==v&&(v=.001);var i,a,m,s=on(t,"x","batchNorm"),u=on(e,"mean","batchNorm"),c=on(n,"variance","batchNorm");return null!=o&&(i=on(o,"scale","batchNorm")),null!=r&&(a=on(r,"offset","batchNorm")),O(u.rank===c.rank,function(){return"Batch normalization gradient requires mean and variance to have equal ranks."}),O(null==a||u.rank===a.rank,function(){return"Batch normalization gradient requires mean and offset to have equal 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i=t,a=e,s=!1;4===e.rank&&(s=!0,a=e.as5D(1,e.shape[0],e.shape[1],e.shape[2],e.shape[3]),i=[1,t[0],t[1],t[2],t[3]]);var u=i[4],c=a.shape[4];O(5===i.length,function(){return"Error in conv3dDerInput: inShape must be length 5, but got length "+i.length+"."}),O(5===a.rank,function(){return"Error in conv3dDerInput: dy must be rank 5, but got rank "+a.rank}),O(5===n.rank,function(){return"Error in conv3dDerInput: filter must be rank 5, but got rank "+n.rank}),O(u===n.shape[3],function(){return"Error in conv3dDerInput: depth of input ("+u+") must match input depth for filter "+n.shape[3]+"."}),O(c===n.shape[4],function(){return"Error in conv3dDerInput: depth of output ("+c+") must match output depth for filter "+n.shape[4]+"."});var l=so(i,n.shape,r,1,o),h=qt.runKernel(function(t){return t.conv3dDerInput(a,n,l)},{dy5D:a});return s?h.as4D(h.shape[1],h.shape[2],h.shape[3],h.shape[4]):h}var nc=gn({conv1d_:function(t,e,n,r,o,i,a){void 0===o&&(o="NWC"),void 0===i&&(i=1);var s=on(t,"x","conv1d"),u=on(e,"filter","conv1d"),c=s,l=!1;2===s.rank&&(l=!0,c=s.as3D(1,s.shape[0],s.shape[1])),O(3===c.rank,function(){return"Error in conv1d: input must be rank 3, but got rank "+c.rank+"."}),O(3===u.rank,function(){return"Error in conv1d: filter must be rank 3, but got rank "+u.rank+"."}),null!=a&&O(B(r),function(){return"Error in conv1d: pad must be an integer when using, dimRoundingMode "+a+" but got pad "+r+"."}),O(c.shape[2]===u.shape[1],function(){return"Error in conv1d: depth of input ("+c.shape[2]+") must match input depth for filter "+u.shape[1]+"."}),O(vo(n,i),function(){return"Error in conv1D: Either stride or dilation must be 1. 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Got strides "+o+" and dilations '"+a+"'"}),O("NDHWC"===n,function(){return"Error in conv3d: got dataFormat of "+n+" but only NDHWC is currently supported."});var h=so(c.shape,u.shape,o,a,i),p=qt.runKernel(function(t,e){var n=t.conv3d(c,u,h);return e([c,u]),n},{x:c,$filter:u},function(t,e){O(tc(a),function(){return"Error in gradient of conv3D: dilation rates greater than 1 are not yet supported in gradients. Got dilations '"+a+"'"});var n=e[0],r=e[1];return{x:function(){return ec(n.shape,t,r,o,i)},$filter:function(){return function(t,e,n,r,o){var i=t;4===t.rank&&(i=t.as5D(1,t.shape[0],t.shape[1],t.shape[2],t.shape[3]));var a=e;4===a.rank&&(a=e.as5D(1,e.shape[0],e.shape[1],e.shape[2],e.shape[3])),O(5===i.rank,function(){return"Error in conv3dDerFilter: input must be rank 5, but got shape "+i.shape+"."}),O(5===a.rank,function(){return"Error in conv3dDerFilter: dy must be rank 5, but got shape "+a.shape+"."}),O(5===n.length,function(){return"Error in conv3dDerFilter: filterShape must be length 5, but got "+n+"."}),O(i.shape[4]===n[3],function(){return"Error in conv3dDerFilter: depth of input "+i.shape[4]+") must match input depth in filter ("+n[3]+"."}),O(a.shape[4]===n[4],function(){return"Error in conv3dDerFilter: depth of dy ("+a.shape[4]+") must match output depth for filter ("+n[4]+")."});var s=so(i.shape,n,r,1,o);return qt.runKernel(function(t){return t.conv3dDerFilter(i,a,s)},{x5D:i,dy5D:a})}(n,t,r.shape,o,i)}}});return l?p.as4D(p.shape[1],p.shape[2],p.shape[3],p.shape[4]):p}}),ic=gn({conv2dDerFilter_:Zu}),ac=gn({conv2dDerInput_:Qu}),sc=gn({depthwiseConv2d_:function(t,e,n,r,o,i,a){void 0===i&&(i=[1,1]);var s=on(t,"x","depthwiseConv2d"),u=on(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])),O(4===c.rank,function(){return"Error in depthwiseConv2d: input must be rank 4, but got rank "+c.rank+"."}),O(4===u.rank,function(){return"Error in depthwiseConv2d: filter must be rank 4, but got rank "+u.rank+"."}),O(c.shape[3]===u.shape[2],function(){return"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]),O(vo(n,i),function(){return"Error in depthwiseConv2d: Either strides or dilations must be 1. Got strides "+n+" and dilations '"+i+"'"}),null!=a&&O(B(r),function(){return"Error in depthwiseConv2d: pad must be an integer when using, dimRoundingMode "+a+" but got pad "+r+"."});var h=ao(c.shape,u.shape,n,i,r,a,!0),p=qt.runKernel(function(t,e){var n=t.depthwiseConv2D(c,u,h);return e([c,u]),n},{x:c,$filter:u},function(t,e){O(fo(i),function(){return"Error in gradient of depthwiseConv2d: dilation rates greater than 1 are not yet supported. Got dilations '"+i+"'"});var n=e[0],r=e[1];return{x:function(){return function(t,e,n,r){var o=e,i=!1;3===e.rank&&(i=!0,o=e.as4D(1,e.shape[0],e.shape[1],e.shape[2]));var a=qt.runKernel(function(t){return t.depthwiseConv2DDerInput(o,n,r)},{dy4D:o});return i?a.as3D(a.shape[1],a.shape[2],a.shape[3]):a}(n.shape,t,r,h)},$filter:function(){return function(t,e,n,r){var o=t;3===t.rank&&(o=t.as4D(1,t.shape[0],t.shape[1],t.shape[2]));var i=e;return 3===i.rank&&(i=e.as4D(1,e.shape[0],e.shape[1],e.shape[2])),qt.runKernel(function(t){return t.depthwiseConv2DDerFilter(o,i,r)},{x4D:o,dy4D:i})}(n,t,r.shape,h)}}});return l?p.as3D(p.shape[1],p.shape[2],p.shape[3]):p}}),uc=gn({separableConv2d_:function(t,e,n,r,o,i,a){void 0===i&&(i=[1,1]),void 0===a&&(a="NHWC");var s=on(t,"x","separableConv2d"),u=on(e,"depthwiseFilter","separableConv2d"),c=on(n,"pointwiseFilter","separableConv2d"),l=s,h=!1;if(3===s.rank&&(h=!0,l=s.as4D(1,s.shape[0],s.shape[1],s.shape[2])),"NCHW"===a)throw new Error("separableConv2d currently does not support dataFormat NCHW; only NHWC is supported");O(4===l.rank,function(){return"Error in separableConv2d: input must be rank 4, but got rank "+l.rank+"."}),O(4===u.rank,function(){return"Error in separableConv2d: depthwise filter must be rank 4, but got rank "+u.rank+"."}),O(4===c.rank,function(){return"Error in separableConv2d: pointwise filter must be rank 4, but got rank "+u.rank+"."}),O(1===c.shape[0],function(){return"Error in separableConv2d: the first dimension of pointwise filter  must be 1, but got "+c.shape[0]+"."}),O(1===c.shape[1],function(){return"Error in separableConv2d: the second dimension of pointwise filter must be 1, but got "+c.shape[1]+"."});var p=u.shape[2],f=u.shape[3];O(c.shape[2]===p*f,function(){return"Error in separableConv2d: the third dimension of pointwise filter must be "+p*f+", but got "+c.shape[2]+"."});var d=sc(l,u,r,o,a,i),v=rc(d,c,1,"valid",a);return h?v.as3D(v.shape[1],v.shape[2],v.shape[3]):v}}),cc=gn({conv2dTranspose_:function(t,e,n,r,o,i){return Qu(n,on(t,"x","conv2dTranspose"),on(e,"filter","conv2dTranspose"),r,o,"NHWC",i)}}),lc=gn({conv3dTranspose_:function(t,e,n,r,o){return ec(n,on(t,"x","conv3dTranspose"),on(e,"filter","conv3dTranspose"),r,o)}}),hc=gn({matMul_:function(t,e,i,a){var n;void 0===i&&(i=!1),void 0===a&&(a=!1);var r=on(t,"a","matMul"),o=on(e,"b","matMul");n=Bt(r,o),r=n[0],o=n[1];var s=i?r.shape[r.rank-2]:r.shape[r.rank-1],u=a?o.shape[o.rank-1]:o.shape[o.rank-2],c=i?r.shape[r.rank-1]:r.shape[r.rank-2],l=a?o.shape[o.rank-2]:o.shape[o.rank-1],h=r.shape.slice(0,-2),p=o.shape.slice(0,-2),f=L(h),d=L(p);O(2<=r.rank&&2<=o.rank&&r.rank===o.rank,function(){return"Error in matMul: inputs must have the same rank of at least 2, got ranks "+r.rank+" and "+o.rank+"."}),O(k(h,p),function(){return"Error in matMul: outer dimensions ("+h+") and ("+p+") of Tensors with shapes "+r.shape+" and "+o.shape+" must match."}),O(s===u,function(){return"Error in matMul: inner shapes ("+s+") and ("+u+") of Tensors with shapes "+r.shape+" and "+o.shape+" and transposeA="+i+" and transposeB="+a+" must match."});var v=r.shape.slice(0,-2).concat([c,l]),m=i?r.as3D(f,s,c):r.as3D(f,c,s),g=a?o.as3D(d,l,u):o.as3D(d,u,l);return qt.runKernel(function(t,e){var n=t.batchMatMul(m,g,i,a);return e([m,g]),n},{$a:m,$b:g},function(t,e){var n=e,r=n[0],o=n[1];return i||a?!i&&a?{$a:function(){return t.matMul(o,!1,!1)},$b:function(){return t.matMul(r,!0,!1)}}:i&&!a?{$a:function(){return o.matMul(t,!1,!0)},$b:function(){return r.matMul(t,!1,!1)}}:{$a:function(){return o.matMul(t,!0,!0)},$b:function(){return t.matMul(r,!0,!0)}}:{$a:function(){return t.matMul(o,!1,!0)},$b:function(){return r.matMul(t,!0,!1)}}}).reshape(v)}}),pc=gn({dot_:function(t,e){var n=on(t,"t1","dot"),r=on(e,"t2","dot");O(!(1!==n.rank&&2!==n.rank||1!==r.rank&&2!==r.rank),function(){return"Error in dot: inputs must all be rank 1 or 2, but got ranks "+n.rank+" and "+r.rank+"."});var o=1===n.rank?n.size:n.shape[1],i=1===r.rank?r.size:r.shape[0];return O(o===i,function(){return"Error in dot: inner dimensions of inputs must match, but got "+o+" and "+i+"."}),1===n.rank&&1===r.rank?n.as2D(1,-1).matMul(r.as2D(-1,1)).asScalar():1===n.rank&&2===r.rank?n.as2D(1,-1).matMul(r.as2D(r.shape[0],r.shape[1])).as1D():2===n.rank&&1===r.rank?n.matMul(r.as2D(-1,1)).as1D():n.matMul(r.as2D(r.shape[0],r.shape[1]))}}),fc=gn({outerProduct_:function(t,e){var n=on(t,"v1","outerProduct"),r=on(e,"v2","outerProduct");return O(1===n.rank&&1===r.rank,function(){return"Error in outerProduct: inputs must be rank 1, but got ranks "+n.rank+" and "+r.rank+"."}),n.as2D(-1,1).matMul(r.as2D(1,-1))}}),dc=gn({reverse_:function(t,e){var n=on(t,"x","reverse");if(0===n.rank)return n.clone();var r=S(e,n.shape);return qt.runKernel(function(t){return t.reverse(n,r)},{$x:n},function(t){return{$x:function(){return t.reverse(r)}}}).reshapeAs(n)}}),vc=gn({reverse1d_:function(t){var e=on(t,"x","reverse");return O(1===e.rank,function(){return"Error in reverse1D: x must be rank 1 but got rank "+e.rank+"."}),dc(e,0)}}),mc=gn({reverse2d_:function(t,e){var n=on(t,"x","reverse");return O(2===n.rank,function(){return"Error in reverse2D: x must be rank 2 but got rank "+n.rank+"."}),dc(n,e)}}),gc=gn({reverse3d_:function(t,e){var n=on(t,"x","reverse");return O(3===n.rank,function(){return"Error in reverse3D: x must be rank 3 but got rank "+n.rank+"."}),dc(n,e)}}),yc=gn({reverse4d_:function(t,e){var n=on(t,"x","reverse");return O(4===n.rank,function(){return"Error in reverse4D: x must be rank 4 but got rank "+n.rank+"."}),dc(n,e)}});function xc(t,r,o,i,a,e){var n=on(t,"x","maxPool"),s=n,u=!1;3===n.rank&&(u=!0,s=n.as4D(1,n.shape[0],n.shape[1],n.shape[2])),null==i&&(i=[1,1]),O(4===s.rank,function(){return"Error in maxPool: input must be rank 4 but got rank "+s.rank+"."}),O(vo(o,i),function(){return"Error in maxPool: Either strides or dilations must be 1. Got strides "+o+" and dilations '"+i+"'"}),null!=e&&O(B(a),function(){return"Error in maxPool: pad must be an integer when using, dimRoundingMode "+e+" but got pad "+a+"."});var c=oo(s.shape,r,o,i,a,e),l=qt.runKernel(function(t,e){var n=t.maxPool(s,c);return e([s,n]),n},{x:s},function(h,t){var e=t[0],n=t[1];return{x:function(){return function(t,e,n,r,o,i,a){var s=on(h,"dy","maxPoolBackprop"),u=on(e,"input","maxPoolBackprop"),c=on(n,"output","maxPoolBackprop");O(u.rank===s.rank,function(){return"Rank of input ("+u.rank+") does not match rank of dy ("+s.rank+")"}),null==i&&(i=[1,1]),O(vo(o,i),function(){return"Error in maxPoolBackProp: Either strides or dilations must be 1. Got strides "+o+" and dilations '"+i+"'"}),O(4===s.rank,function(){return"Error in maxPoolBackprop: dy must be rank 4 but got rank "+s.rank+"."}),O(4===u.rank,function(){return"Error in maxPoolBackprop: input must be rank 4 but got rank "+u.rank+"."});var l=oo(u.shape,r,o,i,a,void 0);return qt.runKernel(function(t){return t.maxPoolBackprop(s,u,c,l)},{$dy:s,$input:u})}(0,e,n,r,o,i,a)}}});return u?l.as3D(l.shape[1],l.shape[2],l.shape[3]):l}function bc(t,e,n,r,o,i){var a=on(t,"x","avgPool","float32");null==r&&(r=[1,1]),O(vo(n,r),function(){return"Error in avgPool: Either strides or dilations must be 1. Got strides "+n+" and dilations '"+r+"'"});var s=a,u=!1;3===a.rank&&(u=!0,s=a.as4D(1,a.shape[0],a.shape[1],a.shape[2])),O(4===s.rank,function(){return"Error in avgPool: x must be rank 4 but got rank "+s.rank+"."}),null!=i&&O(B(o),function(){return"Error in avgPool: pad must be an integer when using, dimRoundingMode "+i+" but got pad "+o+"."});var c=oo(s.shape,e,n,r,o,i),l=qt.runKernel(function(t){return t.avgPool(s,c)},{x:s},function(f){return{x:function(){return function(t,e,n,r,o,i){var a=on(f,"dy","avgPoolBackprop"),s=on(e,"input","avgPoolBackprop");O(s.rank===a.rank,function(){return"Rank of input ("+s.rank+") does not match rank of dy ("+a.rank+")"}),null==o&&(o=[1,1]),O(vo(r,o),function(){return"Error in avgPoolBackprop: Either strides or dilations must be 1. Got strides "+r+" and dilations '"+o+"'"});var u=s,c=a,l=!1;3===s.rank&&(l=!0,u=s.as4D(1,s.shape[0],s.shape[1],s.shape[2]),c=a.as4D(1,a.shape[0],a.shape[1],a.shape[2])),O(4===c.rank,function(){return"Error in avgPoolBackprop: dy must be rank 4 but got rank "+c.rank+"."}),O(4===u.rank,function(){return"Error in avgPoolBackprop: input must be rank 4 but got rank "+u.rank+"."});var h=oo(u.shape,n,r,o,i),p=qt.runKernel(function(t){return t.avgPoolBackprop(c,u,h)},{dy4D:c,input4D:u});return l?p.as3D(p.shape[1],p.shape[2],p.shape[3]):p}(0,s,e,n,r,o)}}});return l=l.cast(a.dtype),u?l.as3D(l.shape[1],l.shape[2],l.shape[3]):l}var wc=gn({maxPool_:function(t,e,n,r,o){return xc(t,e,n,1,r,o)}}),Cc=gn({avgPool_:function(t,e,n,r,o){return bc(t,e,n,1,r,o)}}),Ec=gn({pool_:function(t,e,n,r,o,i){null==o&&(o=[1,1]),null==i&&(i=1),0===r&&(r="valid");var a=on(t,"x","maxPool"),s=a,u=!1;3===a.rank&&(u=!0,s=a.as4D(1,a.shape[0],a.shape[1],a.shape[2])),O(vo(i,o),function(){return"Error in pool: Either strides or dilations must be 1. Got strides "+i+" and dilations '"+o+"'"});var c,l,h,p,f,d,v=oo(s.shape,e,i,o,r),m=[v.dilationHeight,v.dilationWidth];c="same"===r?(l=[v.filterHeight,v.filterWidth],h=m,p=l.map(function(t,e){return t+(t-1)*(h[e]-1)}).map(function(t){return t-1}),f=p.map(function(t){return Math.floor(t/2)}),d=p.map(function(t,e){return t-f[e]}),p.map(function(t,e){return[f[e],d[e]]})):[[0,0],[0,0]];var g,y,x,b,w,C,E,_,R=1===m[0]&&1===m[1],I=(g=[v.inHeight,v.inWidth],y=m,b=(x=c).map(function(t){return t[0]}),w=x.map(function(t){return t[1]}),C=g.concat(b,w),E=y.map(function(t,e){return(t-C[e]%t)%t}),_=w.map(function(t,e){return t+E[e]}),[y.map(function(t,e){return[b[e],_[e]]}),y.map(function(t,e){return[0,E[e]]})]),S=I[1],k=R?r:"valid",N=R?s:Ir(s,m,I[0]),A=("avg"===n?function(){return bc(N,e,i,1,k)}:function(){return xc(N,e,i,1,k)})(),T=R?A:sr(A,m,S);return u?T.as3D(T.shape[1],T.shape[2],T.shape[3]):T}}),_c=gn({maxPool3d_:function(t,r,o,i,a,e,s){void 0===e&&(e="NDHWC");var n=on(t,"x","maxPool3d"),u=n,c=!1;4===n.rank&&(c=!0,u=n.as5D(1,n.shape[0],n.shape[1],n.shape[2],n.shape[3])),null==s&&(s=[1,1,1]),O(5===u.rank,function(){return"Error in maxPool3d: x must be rank 5 but got rank "+u.rank+"."}),O("NDHWC"===e,function(){return"Error in maxPool3d: Only NDHWC is currently supported, but got dataFormat of "+e}),O(vo(o,s),function(){return"Error in maxPool3d: Either strides or dilations must be 1. Got strides "+o+" and dilations '"+s+"'"}),null!=a&&O(B(i),function(){return"Error in maxPool3d: pad must be an integer when using, dimRoundingMode "+a+" but got pad "+i+"."});var l=io(u.shape,r,o,s,i,a,e),h=qt.runKernel(function(t,e){var n=t.maxPool3d(u,l);return e([u,n]),n},{x:u},function(g,t){var e=t[0],n=t[1];return{x:function(){return function(t,e,n,r,o,i,a,s){var u=on(g,"dy","maxPool3dBackprop"),c=on(e,"input","maxPool3dBackprop"),l=on(n,"output","maxPool3dBackprop"),h=u,p=c,f=l,d=!1;4===c.rank&&(d=!0,h=u.as5D(1,u.shape[0],u.shape[1],u.shape[2],u.shape[3]),p=c.as5D(1,c.shape[0],c.shape[1],c.shape[2],c.shape[3]),f=l.as5D(1,l.shape[0],l.shape[1],l.shape[2],l.shape[3])),O(5===h.rank,function(){return"Error in maxPool3dBackprop: dy must be rank 5 but got rank "+h.rank+"."}),O(5===p.rank,function(){return"Error in maxPool3dBackprop: input must be rank 5 but got rank "+p.rank+"."}),O(5===f.rank,function(){return"Error in maxPool3dBackprop: output must be rank 5 but got rank "+f.rank+"."}),null==i&&(i=[1,1,1]),O(vo(o,i),function(){return"Error in maxPool3dBackprop: Either strides or dilations must be 1. Got strides "+o+" and dilations '"+i+"'"}),null!=s&&O(B(a),function(){return"Error in maxPool3dBackprop: pad must be an integer when using, dimRoundingMode "+s+" but got pad "+a+"."});var v=io(p.shape,r,o,i,a,s),m=qt.runKernel(function(t){return t.maxPool3dBackprop(h,p,f,v)},{dy5D:h,input5D:p});return d?m.as4D(m.shape[1],m.shape[2],m.shape[3],m.shape[4]):m}(0,e,n,r,o,s,i,a)}}});return c?h.as4D(h.shape[1],h.shape[2],h.shape[3],h.shape[4]):h}}),Rc=gn({avgPool3d_:function(t,e,n,r,o,i,a){void 0===i&&(i="NDHWC");var s=on(t,"x","avgPool3d","float32"),u=s,c=!1;4===s.rank&&(c=!0,u=s.as5D(1,s.shape[0],s.shape[1],s.shape[2],s.shape[3])),null==a&&(a=[1,1,1]),O(5===u.rank,function(){return"Error in avgPool3d: x must be rank 5 but got rank "+u.rank+"."}),O("NDHWC"===i,function(){return"Error in avgPool3d: Only NDHWC is currently supported, but got dataFormat of "+i}),O(vo(n,a),function(){return"Error in avgPool3d: Either strides or dilations must be 1. 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l=t[c](s,i[c],a[c]);u.push(l[0]),u.push(l[1]),s=l[1]}var h=[],p=[];for(c=0;c<u.length;c+=2)h.push(u[c]),p.push(u[c+1]);return[h,p]}}),Zc=gn({movingAverage_:function(t,e,n,r,o){void 0===o&&(o=!0);var i=on(t,"v","movingAverage"),a=on(e,"x","movingAverage"),s=on(n,"decay","movingAverage");Lt(i,a),O(k(i.shape,a.shape),function(){return"Shape mismatch in v and x"});var u=En(1),c=u.sub(s),l=a.sub(i).mul(c);if(o){O(null!=r,function(){return"When using zeroDebias: true, step is required."});var h=on(r,"step","movingAverage");l=l.div(u.sub(Nu(s,h)))}return i.add(l)}}),tl=gn({stridedSlice_:function(t,e,n,r,o,i,a,s,u){if(void 0===o&&(o=0),void 0===i&&(i=0),void 0===a&&(a=0),void 0===s&&(s=0),void 0===u&&(u=0),null==r&&(r=new Array(e.length)),0!==a)throw new Error("ellipsis mask is not yet supported");var c=on(t,"x","stridedSlice"),l=zr(s),h=c.shape.slice();l.forEach(function(t){e[t]=0,n[t]=1,h.splice(t,0,1)}),c=c.reshape(h);for(var 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e;if(t.shape.length!==e.length)return e;for(var n=[],r=0;r<t.shape.length;r++)null==e[r]&&null!=t.shape[r]?n.push(t.shape[r]):n.push(e[r]);return n}(o,n),a=1-e,s=_r(i,0,1,"float32",r).add(a).floor().div(a);return o.mul(s)}});function pl(t,e,n){for(var r=1-t%2,o=new Float32Array(t),i=0;i<t;++i){var a=2*Math.PI*i/(t+r-1);o[i]=e-n*Math.cos(a)}return _n(o,"float32")}function fl(v,m,g){return void 0===g&&(g=1),y(this,void 0,void 0,function(){var e,n,r,o,i,a,s,u,c,l,h,p,f,d;return I(this,function(t){switch(t.label){case 0:return e=on(v,"predictions","inTopK"),n=on(m,"targets","inTopK"),O(1<e.rank,function(){return"inTopK() expects the predictions to be of rank 2 or higher, but got "+e.rank}),O(e.rank-1===n.rank,function(){return"predictions rank should be 1 larger than targets rank, but got predictions rank "+e.rank+" and targets rank "+n.rank}),x(e.shape.slice(0,e.shape.length-1),n.shape,"predictions's shape should be align with the targets' shape, except the last 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0===o&&(o=ml),null==r&&(i=e,r=Math.floor(Math.pow(2,Math.ceil(Math.log(i)/Math.log(2)))));for(var a=yl(t,e,n),s=Su(a,o(e)),u=[],c=0;c<a.shape[0];c++)u.push(il(s.slice([c,0],[1,e]),r));return Bn(u)}}),bl=Object.freeze({hannWindow:ml,hammingWindow:gl,frame:yl,stft:xl});(vl=dl=dl||{})[vl.NONE=0]="NONE",vl[vl.MEAN=1]="MEAN",vl[vl.SUM=2]="SUM",vl[vl.SUM_BY_NONZERO_WEIGHTS=3]="SUM_BY_NONZERO_WEIGHTS";var wl=gn({absoluteDifference_:function(t,e,n,r){void 0===r&&(r=dl.SUM_BY_NONZERO_WEIGHTS);var o=on(t,"labels","absoluteDifference"),i=on(e,"predictions","absoluteDifference"),a=null;null!=n&&(a=on(n,"weights","absoluteDifference")),x(o.shape,i.shape,"Error in absoluteDifference: ");var s=o.sub(i).abs();return Cl(s,a,r)}}),Cl=gn({computeWeightedLoss_:function(t,e,n){void 0===n&&(n=dl.SUM_BY_NONZERO_WEIGHTS);var r=on(t,"losses","computeWeightedLoss"),o=null;null!=e&&(o=on(e,"weights","computeWeightedLoss"));var i=null==o?r:r.mul(o);if(n===dl.NONE)return i;if(n===dl.SUM)return 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0===r&&(r=1),void 0===o&&(o=dl.SUM_BY_NONZERO_WEIGHTS);var i=on(t,"labels","huberLoss"),a=on(e,"predictions","huberLoss"),s=null;null!=n&&(s=on(n,"weights","huberLoss")),x(i.shape,a.shape,"Error in huberLoss: ");var u=En(r),c=a.sub(i).abs(),l=Eu(c,u),h=c.sub(l),p=En(.5).mul(l.square()).add(u.mul(h));return Cl(p,s,o)}}),Il=gn({logLoss_:function(t,e,n,r,o){void 0===r&&(r=1e-7),void 0===o&&(o=dl.SUM_BY_NONZERO_WEIGHTS);var i=on(t,"labels","logLoss"),a=on(e,"predictions","logLoss"),s=null;null!=n&&(s=on(n,"weights","logLoss")),x(i.shape,a.shape,"Error in logLoss: ");var u=En(1),c=En(r),l=i.mul(a.add(c).log()).neg().sub(u.sub(i).mul(u.sub(a).add(c).log()));return Cl(l,s,o)}}),Sl=gn({meanSquaredError_:function(t,e,n,r){void 0===r&&(r=dl.SUM_BY_NONZERO_WEIGHTS);var o=on(t,"labels","meanSquaredError"),i=on(e,"predictions","meanSquaredError"),a=null;null!=n&&(a=on(n,"weights","meanSquaredError")),x(o.shape,i.shape,"Error in meanSquaredError: ");var s=o.squaredDifference(i);return Cl(s,a,r)}}),kl=gn({sigmoidCrossEntropy_:function(t,e,n,r,o){void 0===r&&(r=0),void 0===o&&(o=dl.SUM_BY_NONZERO_WEIGHTS);var s=on(t,"multiClassLabels","sigmoidCrossEntropy"),i=on(e,"logits","sigmoidCrossEntropy"),a=null;if(null!=n&&(a=on(n,"weights","sigmoidCrossEntropy")),x(s.shape,i.shape,"Error in sigmoidCrossEntropy: "),0<r){var u=En(r),c=En(1),l=En(.5);s=s.mul(c.sub(u)).add(l.mul(u))}var h=function(t,e){var n=on(s,"labels","sigmoidCrossEntropyWithLogits"),r=on(e,"logits","sigmoidCrossEntropyWithLogits");x(n.shape,r.shape,"Error in sigmoidCrossEntropyWithLogits: ");var o=r.relu(),i=r.mul(n),a=r.abs().neg().exp().log1p();return o.sub(i).add(a)}(0,i);return Cl(h,a,o)}}),Nl=gn({softmaxCrossEntropy_:function(t,e,n,r,o){void 0===r&&(r=0),void 0===o&&(o=dl.SUM_BY_NONZERO_WEIGHTS);var i=on(t,"onehotLabels","softmaxCrossEntropy"),a=on(e,"logits","softmaxCrossEntropy"),s=null;if(null!=n&&(s=on(n,"weights","softmaxCrossEntropy")),x(i.shape,a.shape,"Error in softmaxCrossEntropy: "),0<r){var u=En(r),c=En(1),l=En(i.shape[1]);i=i.mul(c.sub(u)).add(u.div(l))}var h=function(t,e,i){if(void 0===i&&(i=-1),-1===i&&(i=e.rank-1),i!==e.rank-1)throw Error("Softmax cross entropy along a non-last dimension is not yet supported. 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Expected "+i+", but was "+e.shape[0]}),{maxOutputSize:n,iouThreshold:r,scoreThreshold:o}}var Ol=gn({resizeBilinear_:function(t,e,r){void 0===r&&(r=!1);var n=on(t,"images","resizeBilinear");O(3===n.rank||4===n.rank,function(){return"Error in resizeBilinear: x must be rank 3 or 4, but got rank "+n.rank+"."}),O(2===e.length,function(){return"Error in resizeBilinear: new shape must 2D, but got shape "+e+"."});var o=n,i=!1;3===n.rank&&(i=!0,o=n.as4D(1,n.shape[0],n.shape[1],n.shape[2]));var a=e[0],s=e[1],u=qt.runKernel(function(t,e){return e([o]),t.resizeBilinear(o,a,s,r)},{batchImages:o},function(e,n){return{batchImages:function(){return qt.runKernel(function(t){return t.resizeBilinearBackprop(e,n[0],r)},{})}}});return i?u.as3D(u.shape[1],u.shape[2],u.shape[3]):u}}),Bl=gn({resizeNearestNeighbor_:function(t,e,r){void 0===r&&(r=!1);var n=on(t,"images","resizeNearestNeighbor");O(3===n.rank||4===n.rank,function(){return"Error in resizeNearestNeighbor: x must be rank 3 or 4, but got rank "+n.rank+"."}),O(2===e.length,function(){return"Error in resizeNearestNeighbor: new shape must 2D, but got shape "+e+"."}),O("float32"===n.dtype||"int32"===n.dtype,function(){return"`images` must have `int32` or `float32` as dtype"});var o=n,i=!1;3===n.rank&&(i=!0,o=n.as4D(1,n.shape[0],n.shape[1],n.shape[2]));var a=e[0],s=e[1],u=qt.runKernel(function(t,e){return e([o]),t.resizeNearestNeighbor(o,a,s,r)},{batchImages:o},function(e,n){return{batchImages:function(){return qt.runKernel(function(t){return t.resizeNearestNeighborBackprop(e,n[0],r)},{})}}});return i?u.as3D(u.shape[1],u.shape[2],u.shape[3]):u}}),Ll=gn({nonMaxSuppression_:function(t,e,n,r,o){void 0===r&&(r=.5),void 0===o&&(o=Number.NEGATIVE_INFINITY);var i=on(t,"boxes","nonMaxSuppression"),a=on(e,"scores","nonMaxSuppression"),s=Pl(i,a,n,r,o);return n=s.maxOutputSize,r=s.iouThreshold,o=s.scoreThreshold,qt.runKernel(function(t){return t.nonMaxSuppression(i,a,n,r,o)},{$boxes:i})}}),Wl=gn({cropAndResize_:function(t,e,n,r,o,i){var a=on(t,"image","cropAndResize","float32"),s=on(e,"boxes","cropAndResize","float32"),u=on(n,"boxInd","cropAndResize","int32");o=o||"bilinear",i=i||0;var c=s.shape[0];return O(4===a.rank,function(){return"Error in cropAndResize: image must be rank 4,but got rank "+a.rank+"."}),O(2===s.rank&&4===s.shape[1],function(){return"Error in cropAndResize: boxes must be have size ["+c+",4] but had shape "+s.shape+"."}),O(1===u.rank&&u.shape[0]===c,function(){return"Error in cropAndResize: boxInd must be have size ["+c+"] but had shape "+s.shape+"."}),O(2===r.length,function(){return"Error in cropAndResize: cropSize must be of length 2, but got length "+r.length+"."}),O(1<=r[0]&&1<=r[1],function(){return"cropSize must be atleast [1,1], but was "+r}),O("bilinear"===o||"nearest"===o,function(){return"method must be bilinear or nearest, but was "+o}),qt.runKernel(function(t,e){return t.cropAndResize(a,s,u,r,o,i)},{$image:a,$boxes:s})}}),zl=Object.freeze({resizeBilinear:Ol,resizeNearestNeighbor:Bl,nonMaxSuppression:Ll,nonMaxSuppressionAsync:function(u,c,l,h,p){return void 0===h&&(h=.5),void 0===p&&(p=Number.NEGATIVE_INFINITY),y(this,void 0,void 0,function(){var e,n,r,o,i,a,s;return I(this,function(t){switch(t.label){case 0:return e=on(u,"boxes","nonMaxSuppressionAsync"),n=on(c,"scores","nonMaxSuppressionAsync"),r=Pl(e,n,l,h,p),l=r.maxOutputSize,h=r.iouThreshold,p=r.scoreThreshold,[4,Promise.all([e.data(),n.data()])];case 1:return o=t.sent(),i=o[0],a=o[1],s=Eo(i,a,l,h,p),e!==u&&e.dispose(),n!==c&&n.dispose(),[2,s]}})})},cropAndResize:Wl}),Ul=gn({matMul_:function(t){var e,n=t.a,r=t.b,o=t.transposeA,s=void 0!==o&&o,i=t.transposeB,u=void 0!==i&&i,c=t.bias,a=t.activation,l=void 0===a?"linear":a,h=t.preluActivationWeights,p=on(n,"a","fused matMul"),f=on(r,"b","fused matMul");e=Bt(p,f),p=e[0],f=e[1];var d=s?p.shape[p.rank-2]:p.shape[p.rank-1],v=u?f.shape[f.rank-1]:f.shape[f.rank-2],m=s?p.shape[p.rank-1]:p.shape[p.rank-2],g=u?f.shape[f.rank-2]:f.shape[f.rank-1],y=p.shape.slice(0,-2),x=f.shape.slice(0,-2),b=L(y),w=L(x);O(2<=p.rank&&2<=f.rank&&p.rank===f.rank,function(){return"Error in fused matMul: inputs must have the same rank of at least 2, got ranks "+p.rank+" and "+f.rank+"."}),O(k(y,x),function(){return"Error in fused matMul: outer dimensions ("+y+") and ("+x+") of Tensors with shapes "+p.shape+" and "+f.shape+" must match."}),O(d===v,function(){return"Error in fused matMul: inner shapes ("+d+") and ("+v+") of Tensors with shapes "+p.shape+" and "+f.shape+" and transposeA="+s+" and transposeB="+u+" must match."});var C,E,_=p.shape.slice(0,-2).concat([m,g]),R=s?p.as3D(b,d,m):p.as3D(b,m,d),I=u?f.as3D(w,g,v):f.as3D(w,v,g);null!=c&&ro(_,(C=Bt(C=on(c,"bias","fused matMul"),p)[0]).shape),null!=h&&(E=on(h,"prelu weights","fused matMul"));var S={$a:R,$b:I};return 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e=t.x,n=t.filter,u=t.strides,c=t.pad,r=t.dataFormat,o=void 0===r?"NHWC":r,i=t.dilations,l=void 0===i?[1,1]:i,a=t.dimRoundingMode,h=t.bias,s=t.activation,p=void 0===s?"linear":s,f=t.preluActivationWeights,d=on(e,"x","conv2d"),v=on(n,"filter","conv2d"),m=d,g=!1;3===d.rank&&(g=!0,m=d.as4D(1,d.shape[0],d.shape[1],d.shape[2])),O(4===m.rank,function(){return"Error in fused conv2d: input must be rank 4, but got rank "+m.rank+"."}),O(4===v.rank,function(){return"Error in fused conv2d: filter must be rank 4, but got rank "+v.rank+"."}),null!=a&&O(B(c),function(){return"Error in fused conv2d: pad must be an integer when using, dimRoundingMode "+a+" but got pad "+c+"."}),O(m.shape[3]===v.shape[2],function(){return"Error in conv2d: depth of input ("+m.shape[3]+") must match input depth for filter "+v.shape[2]+"."}),O(vo(u,l),function(){return"Error in conv2D: Either strides or dilations must be 1. 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i.toTensor()},$l.prototype.stridedSlice=function(t,e,n,r){this.assertNotComplex(t,"stridedSlice");var o=Ur(e,n,r);if(o.some(function(t){return 0===t}))return wn([],o);for(var i=or(o,t.dtype),a=this.bufferSync(t),s=0;s<i.size;s++){for(var u=i.indexToLoc(s),c=new Array(u.length),l=0;l<c.length;l++)c[l]=u[l]*r[l]+e[l];i.set.apply(i,[a.get.apply(a,c)].concat(u))}return i.toTensor()},$l.prototype.diag=function(t){for(var e=this.readSync(t.dataId),n=or([t.size,t.size],t.dtype),r=n.values,o=0;o<e.length;o++)r[o*t.size+o]=e[o];return n.toTensor()},$l.prototype.unstack=function(t,e){for(var n=t.shape[e],r=new Array(t.rank-1),o=0,i=0;i<t.rank;i++)i!==e&&(r[o++]=t.shape[i]);var a=new Array(t.rank).fill(0),s=t.shape.slice();s[e]=1;var u=new Array(n);for(i=0;i<u.length;i++)u[a[e]=i]=this.slice(t,a,s).reshape(r);return u},$l.prototype.reverse=function(r,o){this.assertNotComplex(r,"reverse");for(var i=or(r.shape,r.dtype),a=this.bufferSync(r),t=function(t){var e=i.indexToLoc(t),n=e.slice();o.forEach(function(t){return n[t]=r.shape[t]-1-n[t]}),i.set.apply(i,[a.get.apply(a,n)].concat(e))},e=0;e<i.size;e++)t(e);return i.toTensor()},$l.prototype.concat=function(t,n){var a=this;if("complex64"===t[0].dtype){var e=t.map(function(t){return xn(t)}),r=t.map(function(t){return bn(t)});return yn(this.concat(e,n),this.concat(r,n))}var o=t.map(function(t){var e=L(t.shape.slice(n));return t.as2D(-1,e)}),s=mn(o.map(function(t){return t.shape}),1),u=or(s,t[0].dtype).values;if(1===o[0].shape[0]){var i=0;o.forEach(function(t){u.set(a.readSync(t.dataId),i),i+=t.size})}else{var c=0;o.forEach(function(t){for(var e=a.readSync(t.dataId),n=0,r=0;r<t.shape[0];++r)for(var o=r*s[1]+c,i=0;i<t.shape[1];++i)u[o+i]=e[n++];c+=t.shape[1]})}var l=mn(t.map(function(t){return t.shape}),n);return wn(u,l,t[0].dtype)},$l.prototype.neg=function(t){return this.assertNotComplex(t,"neg"),this.multiply(En(-1),t)},$l.prototype.add=function(t,e){return"complex64"===t.dtype||"complex64"===e.dtype?this.broadcastedBinaryComplexOp(t.cast("complex64"),e.cast("complex64"),function(t,e,n,r){return{real:t+n,imag:e+r}}):this.broadcastedBinaryOp(t,e,Pt(t.dtype,e.dtype),function(t,e){return t+e})},$l.prototype.addN=function(t){var e=this;this.assertNotComplex(t,"addN");for(var n=t.map(function(t){return e.readSync(t.dataId)}),r=or(t[0].shape,t[0].dtype),o=r.values,i=0;i<t.length;i++)for(var a=n[i],s=0;s<o.length;s++)o[s]+=a[s];return r.toTensor()},$l.prototype.subtract=function(t,e){return"complex64"===t.dtype||"complex64"===e.dtype?this.broadcastedBinaryComplexOp(t.cast("complex64"),e.cast("complex64"),function(t,e,n,r){return{real:t-n,imag:e-r}}):this.broadcastedBinaryOp(t,e,Pt(t.dtype,e.dtype),function(t,e){return t-e})},$l.prototype.pow=function(t,e){return this.assertNotComplex([t,e],"pow"),this.broadcastedBinaryOp(t,e,t.dtype,function(t,e){return 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i&&(u=this.add(u,i)),a&&(u=jl(this,u,a,s)),u},$l.prototype.multiply=function(t,e){return"complex64"===t.dtype||"complex64"===e.dtype?this.broadcastedBinaryComplexOp(t.cast("complex64"),e.cast("complex64"),function(t,e,n,r){return{real:t*n-e*r,imag:t*r+e*n}}):this.broadcastedBinaryOp(t,e,Pt(t.dtype,e.dtype),function(t,e){return t*e})},$l.prototype.realDivide=function(t,e){return this.assertNotComplex([t,e],"realDivide"),this.broadcastedBinaryOp(t,e,"float32",function(t,e){return t/e})},$l.prototype.floorDiv=function(t,e){return this.assertNotComplex([t,e],"floorDiv"),this.broadcastedBinaryOp(t,e,"int32",function(t,e){return Math.floor(t/e)})},$l.prototype.sum=function(t,e){this.assertNotComplex(t,"sum"),hn("sum",e,t.rank);for(var n=cn(t.shape,e),r=n[0],o=n[1],i=Tn(r,Pt(t.dtype,"int32")),a=L(o),s=this.readSync(i.dataId),u=this.readSync(t.dataId),c=0;c<s.length;++c){for(var l=c*a,h=0,p=0;p<a;++p)h+=u[l+p];s[c]=h}return i},$l.prototype.prod=function(t,e){this.assertNotComplex(t,"sum");for(var n=cn(t.shape,e),r=n[0],o=n[1],i=Tn(r,Pt(t.dtype,"int32")),a=L(o),s=this.readSync(i.dataId),u=this.readSync(t.dataId),c=0;c<s.length;++c){for(var l=c*a,h=1,p=0;p<a;++p)h*=u[l+p];s[c]=h}return i},$l.prototype.unsortedSegmentSum=function(t,e,n){this.assertNotComplex(t,"unsortedSegmentSum");for(var r=[],o=t.rank-e.rank,i=0;i<o;++i)e=e.expandDims(i+1);for(i=0;i<n;++i){var a=En(i,"int32"),s=Pu(a,e).asType("float32").mul(t).sum(0);r.push(s)}return kr(r)},$l.prototype.argMin=function(t,e){this.assertNotComplex(t,"argMin");var n=[e];hn("argMin",n,t.rank);for(var r=cn(t.shape,n),o=r[0],i=r[1],a=Tn(o,"int32"),s=L(i),u=this.readSync(a.dataId),c=this.readSync(t.dataId),l=0;l<u.length;++l){for(var h=l*s,p=c[h],f=0,d=0;d<s;++d){var v=c[h+d];v<p&&(p=v,f=d)}u[l]=f}return a},$l.prototype.argMax=function(t,e){this.assertNotComplex(t,"argMax");var n=[e];hn("argMax",n,t.rank);for(var r=cn(t.shape,n),o=r[0],i=r[1],a=Tn(o,"int32"),s=L(i),u=this.readSync(a.dataId),c=this.readSync(t.dataId),l=0;l<u.length;++l){for(var h=l*s,p=c[h],f=0,d=0;d<s;++d){var v=c[h+d];p<v&&(p=v,f=d)}u[l]=f}return a},$l.prototype.cumsum=function(t,e,n,r){if(this.assertNotComplex(t,"cumsum"),e!==t.rank-1)throw new Error("backend.cumsum in CPU expects an inner-most axis="+(t.rank-1)+" but got axis="+e);for(var o=Pt(t.dtype,"int32"),i=Tn(t.shape,o),a=this.readSync(i.dataId),s=this.readSync(t.dataId),u=t.shape[t.rank-1],c=r?function(t,e){return t+u-e-1}:function(t,e){return t+e},l=0;l<s.length;l+=u)for(var h=0;h<u;h++){var p=c(l,h);if(0===h)a[p]=n?0:s[p];else{var f=c(l,h-1);a[p]=n?s[f]+a[f]:s[p]+a[f]}}return i},$l.prototype.equal=function(t,e){return this.assertNotComplex([t,e],"equal"),this.broadcastedBinaryOp(t,e,"bool",function(t,e){return t===e?1:0})},$l.prototype.notEqual=function(t,e){return this.assertNotComplex([t,e],"notEqual"),this.broadcastedBinaryOp(t,e,"bool",function(t,e){return t!==e?1:0})},$l.prototype.less=function(t,e){return this.assertNotComplex([t,e],"less"),this.broadcastedBinaryOp(t,e,"bool",function(t,e){return t<e?1:0})},$l.prototype.lessEqual=function(t,e){return this.assertNotComplex([t,e],"lessEqual"),this.broadcastedBinaryOp(t,e,"bool",function(t,e){return t<=e?1:0})},$l.prototype.greater=function(t,e){return this.assertNotComplex([t,e],"greater"),this.broadcastedBinaryOp(t,e,"bool",function(t,e){return e<t?1:0})},$l.prototype.greaterEqual=function(t,e){return this.assertNotComplex([t,e],"greaterEqual"),this.broadcastedBinaryOp(t,e,"bool",function(t,e){return e<=t?1:0})},$l.prototype.logicalNot=function(t){this.assertNotComplex(t,"logicalNot");for(var e=this.readSync(t.dataId),n=new Uint8Array(e.length),r=0;r<e.length;++r)n[r]=e[r]?0:1;return yt.make(t.shape,{values:n},"bool")},$l.prototype.logicalAnd=function(t,e){return this.assertNotComplex([t,e],"logicalAnd"),this.broadcastedBinaryOp(t,e,"bool",function(t,e){return t&&e})},$l.prototype.logicalOr=function(t,e){return this.assertNotComplex([t,e],"logicalOr"),this.broadcastedBinaryOp(t,e,"bool",function(t,e){return t||e})},$l.prototype.select=function(t,e,n){this.assertNotComplex([t,e,n],"select");for(var r=this.readSync(t.dataId),o=this.readSync(e.dataId),i=this.readSync(n.dataId),a=Tn(e.shape,Pt(e.dtype,n.dtype)),s=this.readSync(a.dataId),u=0,c=0===t.rank||1<t.rank||1===e.rank?1:e.shape[1],l=0;l<r.length;l++)for(var h=0;h<c;h++)1===r[l]?s[u++]=o[l]:s[u++]=i[l];return a},$l.prototype.where=function(t){this.assertNotComplex([t],"where");var e=this.readSync(t.dataId);return ko(t.shape,e)},$l.prototype.topk=function(t,e,n){return this.assertNotComplex(t,"topk"),So(this.readSync(t.dataId),t.shape,t.dtype,e)},$l.prototype.min=function(t,e){this.assertNotComplex(t,"min"),hn("min",e,t.rank);for(var n=cn(t.shape,e),r=n[0],o=n[1],i=Tn(r,t.dtype),a=L(o),s=this.readSync(i.dataId),u=this.readSync(t.dataId),c=0;c<s.length;++c){for(var l=c*a,h=u[l],p=0;p<a;++p){var f=u[l+p];f<h&&(h=f)}s[c]=h}return i},$l.prototype.minimum=function(t,e){return this.assertNotComplex([t,e],"minimum"),this.broadcastedBinaryOp(t,e,t.dtype,function(t,e){return Math.min(t,e)})},$l.prototype.mod=function(t,e){return this.assertNotComplex([t,e],"mod"),this.broadcastedBinaryOp(t,e,t.dtype,function(t,e){var n=t%e;return t<0&&e<0||0<=t&&0<=e?n:(n+e)%e})},$l.prototype.max=function(t,e){this.assertNotComplex(t,"max"),hn("max",e,t.rank);for(var n=cn(t.shape,e),r=n[0],o=n[1],i=Tn(r,t.dtype),a=L(o),s=this.readSync(i.dataId),u=this.readSync(t.dataId),c=0;c<s.length;++c){for(var l=c*a,h=u[l],p=0;p<a;++p){var f=u[l+p];h<f&&(h=f)}s[c]=h}return i},$l.prototype.maximum=function(t,e){return this.assertNotComplex([t,e],"maximum"),this.broadcastedBinaryOp(t,e,t.dtype,function(t,e){return Math.max(t,e)})},$l.prototype.all=function(t,e){this.assertNotComplex(t,"all"),hn("all",e,t.rank);for(var n=cn(t.shape,e),r=n[0],o=n[1],i=Tn(r,t.dtype),a=L(o),s=this.readSync(i.dataId),u=this.readSync(t.dataId),c=0;c<s.length;++c){for(var l=c*a,h=u[l],p=0;p<a;++p){var f=u[l+p];h=h&&f}s[c]=h}return i},$l.prototype.any=function(t,e){this.assertNotComplex(t,"any"),hn("any",e,t.rank);for(var n=cn(t.shape,e),r=n[0],o=n[1],i=Tn(r,t.dtype),a=L(o),s=this.readSync(i.dataId),u=this.readSync(t.dataId),c=0;c<s.length;++c){for(var l=c*a,h=u[l],p=0;p<a;++p){var f=u[l+p];h=h||f}s[c]=h}return i},$l.prototype.squaredDifference=function(t,e){return this.assertNotComplex([t,e],"squaredDifference"),this.broadcastedBinaryOp(t,e,t.dtype,function(t,e){var n=t-e;return n*n})},$l.prototype.ceil=function(t){this.assertNotComplex(t,"ceil");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r)n[r]=Math.ceil(e[r]);return yt.make(t.shape,{values:n})},$l.prototype.floor=function(t){this.assertNotComplex(t,"floor");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r)n[r]=Math.floor(e[r]);return yt.make(t.shape,{values:n})},$l.prototype.sign=function(t){this.assertNotComplex(t,"x");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r)e[r]<0?n[r]=-1:0<e[r]?n[r]=1:n[r]=0;return yt.make(t.shape,{values:n})},$l.prototype.isNaN=function(t){this.assertNotComplex(t,"x");for(var e=this.readSync(t.dataId),n=new Uint8Array(e.length),r=0;r<e.length;++r)Number.isNaN(e[r])&&(n[r]=1);return yt.make(t.shape,{values:n},"bool")},$l.prototype.isInf=function(t){this.assertNotComplex(t,"x");for(var e=this.readSync(t.dataId),n=new Uint8Array(e.length),r=0;r<e.length;++r)Math.abs(e[r])===1/0&&(n[r]=1);return yt.make(t.shape,{values:n},"bool")},$l.prototype.isFinite=function(t){this.assertNotComplex(t,"x");for(var e=this.readSync(t.dataId),n=new Uint8Array(e.length),r=0;r<e.length;++r)Number.isFinite(e[r])&&(n[r]=1);return yt.make(t.shape,{values:n},"bool")},$l.prototype.round=function(t){this.assertNotComplex(t,"round");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=Math.floor(e[r]);e[r]-o<.5?n[r]=Math.floor(e[r]):.5<e[r]-o?n[r]=Math.ceil(e[r]):n[r]=o%2==0?o:o+1}return yt.make(t.shape,{values:n})},$l.prototype.exp=function(t){this.assertNotComplex(t,"exp");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r)n[r]=Math.exp(e[r]);return yt.make(t.shape,{values:n})},$l.prototype.expm1=function(t){this.assertNotComplex(t,"expm1");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r)n[r]=Math.expm1(e[r]);return yt.make(t.shape,{values:n})},$l.prototype.log=function(t){this.assertNotComplex(t,"log");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=e[r];n[r]=Math.log(o)}return yt.make(t.shape,{values:n})},$l.prototype.log1p=function(t){this.assertNotComplex(t,"log1p");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=e[r];n[r]=Math.log1p(o)}return yt.make(t.shape,{values:n})},$l.prototype.sqrt=function(t){this.assertNotComplex(t,"sqrt");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=e[r];n[r]=Math.sqrt(o)}return yt.make(t.shape,{values:n})},$l.prototype.rsqrt=function(t){this.assertNotComplex(t,"rsqrt");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=e[r];n[r]=1/Math.sqrt(o)}return yt.make(t.shape,{values:n})},$l.prototype.square=function(t){this.assertNotComplex(t,"square");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r){var o=e[r];n[r]=o*o}return yt.make(t.shape,{values:n})},$l.prototype.reciprocal=function(t){this.assertNotComplex(t,"reciprocal");for(var e=this.readSync(t.dataId),n=new Float32Array(e.length),r=0;r<e.length;++r)n[r]=1/e[r];return yt.make(t.shape,{values:n})},$l.prototype.linear=function(t){return t},$l.prototype.relu=function(t){this.assertNotComplex(t,"relu");for(var e=Tn(t.shape,t.dtype),n=this.readSync(e.dataId),r=this.readSync(t.dataId),o=0;o<r.length;++o)n[o]=Math.max(0,r[o]);return e},$l.prototype.prelu=function(t,e){return this.assertNotComplex([t,e],"prelu"),this.broadcastedBinaryOp(t,e,t.dtype,function(t,e){return t<0?e*t:t})},$l.prototype.elu=function(t){this.assertNotComplex(t,"elu");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r){var o=n[r];e[r]=0<=o?o:Math.exp(o)-1}return yt.make(t.shape,{values:e})},$l.prototype.eluDer=function(t,e){this.assertNotComplex([t,e],"eluDer");for(var n=new Float32Array(e.size),r=this.readSync(e.dataId),o=this.readSync(t.dataId),i=0;i<r.length;++i){var a=r[i];n[i]=1<=a?o[i]:o[i]*(a+1)}return yt.make(e.shape,{values:n})},$l.prototype.selu=function(t){this.assertNotComplex(t,"selu");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r){var o=n[r];e[r]=0<=o?1.0507009873554805*o:1.7580993408473768*(Math.exp(o)-1)}return yt.make(t.shape,{values:e})},$l.prototype.clip=function(t,e,n){this.assertNotComplex(t,"clip");for(var r=new Float32Array(t.size),o=this.readSync(t.dataId),i=0;i<o.length;++i){var a=o[i];r[i]=n<a?n:a<e?e:a}return yt.make(t.shape,{values:r})},$l.prototype.abs=function(t){for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.abs(n[r]);return yt.make(t.shape,{values:e})},$l.prototype.complexAbs=function(t){for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<t.size;++r){var o=n[2*r],i=n[2*r+1];e[r]=Math.hypot(o,i)}return yt.make(t.shape,{values:e})},$l.prototype.int=function(t){this.assertNotComplex(t,"int");for(var e=new Int32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=n[r];return yt.make(t.shape,{values:e},"int32")},$l.prototype.sigmoid=function(t){this.assertNotComplex(t,"sigmoid");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=1/(1+Math.exp(-n[r]));return yt.make(t.shape,{values:e})},$l.prototype.softplus=function(t){this.assertNotComplex(t,"softplus");for(var e=Math.log(1.1920928955078125e-7)+2,n=new Float32Array(t.size),r=this.readSync(t.dataId),o=0;o<r.length;++o){var i,a=r[o]>-e,s=r[o]<e,u=Math.exp(r[o]);i=s?u:a?r[o]:Math.log(1+u),n[o]=i}return yt.make(t.shape,{values:n})},$l.prototype.sin=function(t){this.assertNotComplex(t,"sin");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.sin(n[r]);return yt.make(t.shape,{values:e})},$l.prototype.cos=function(t){this.assertNotComplex(t,"cos");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.cos(n[r]);return yt.make(t.shape,{values:e})},$l.prototype.tan=function(t){this.assertNotComplex(t,"tan");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.tan(n[r]);return yt.make(t.shape,{values:e})},$l.prototype.asin=function(t){this.assertNotComplex(t,"asin");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.asin(n[r]);return yt.make(t.shape,{values:e})},$l.prototype.acos=function(t){this.assertNotComplex(t,"acos");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.acos(n[r]);return yt.make(t.shape,{values:e})},$l.prototype.atan=function(t){this.assertNotComplex(t,"atan");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.atan(n[r]);return yt.make(t.shape,{values:e})},$l.prototype.atan2=function(t,e){return this.assertNotComplex([t,e],"atan2"),this.broadcastedBinaryOp(t,e,t.dtype,function(t,e){return Math.atan2(t,e)})},$l.prototype.sinh=function(t){this.assertNotComplex(t,"sinh");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.sinh(n[r]);return yt.make(t.shape,{values:e})},$l.prototype.cosh=function(t){this.assertNotComplex(t,"cosh");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.cosh(n[r]);return yt.make(t.shape,{values:e})},$l.prototype.tanh=function(t){this.assertNotComplex(t,"tanh");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=b(n[r]);return yt.make(t.shape,{values:e})},$l.prototype.asinh=function(t){this.assertNotComplex(t,"asinh");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.asinh(n[r]);return yt.make(t.shape,{values:e})},$l.prototype.acosh=function(t){this.assertNotComplex(t,"acosh");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.acosh(n[r]);return yt.make(t.shape,{values:e})},$l.prototype.atanh=function(t){this.assertNotComplex(t,"atanh");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r)e[r]=Math.atanh(n[r]);return yt.make(t.shape,{values:e})},$l.prototype.erf=function(t){this.assertNotComplex(t,"erf");for(var e=new Float32Array(t.size),n=this.readSync(t.dataId),r=0;r<n.length;++r){var o=n[r],i=1/(1+.3275911*o);e[r]=1-((((1.061405429*i-1.453152027)*i+1.421413741)*i-.284496736)*i+.254829592)*i*Math.exp(-o*o)}return yt.make(t.shape,{values:e})},$l.prototype.step=function(t,e){void 0===e&&(e=0),this.assertNotComplex(t,"step");for(var n=new Float32Array(t.size),r=this.readSync(t.dataId),o=0;o<r.length;++o){var i=r[o];isNaN(i)?n[o]=NaN:n[o]=0<i?1:e}return yt.make(t.shape,{values:n})},$l.prototype.fusedConv2d=function(t,e,n,r,o,i){var a=this.conv2d(t,e,n);return r&&(a=this.add(a,r)),o&&(a=jl(this,a,o,i)),a},$l.prototype.conv2d=function(t,e,n){this.assertNotComplex([t,e],"conv2d");for(var r=n.filterHeight,o=n.filterWidth,i=n.dilationHeight,a=n.dilationWidth,s=n.padInfo.left,u=n.padInfo.top,c="channelsLast"===n.dataFormat,l=or(n.outShape,t.dtype),h=t.strides[0],p=c?t.strides[1]:t.strides[2],f=c?t.strides[2]:1,d=c?1:t.strides[1],v=l.strides[0],m=c?l.strides[1]:l.strides[2],g=c?l.strides[2]:1,y=c?1:l.strides[1],x=this.readSync(t.dataId),b=this.readSync(e.dataId),w=l.values,C=0;C<n.batchSize;++C)for(var E=C*h,_=C*v,R=0;R<n.outHeight;++R)for(var I=_+R*m,S=R*n.strideHeight-u,k=0;k<r;k++){var N=S+k*i;if(!(N<0||N>=n.inHeight))for(var A=k*e.strides[0],T=E+N*p,D=0;D<n.outWidth;++D)for(var F=I+D*g,M=D*n.strideWidth-s,P=0;P<o;P++){var O=M+P*a;if(!(O<0||O>=n.inWidth))for(var B=T+O*f,L=A+P*e.strides[1],W=0;W<n.inChannels;++W){for(var z=x[B+W*d],U=0;U<n.outChannels;++U)w[F+U*y]+=z*b[L+U];L+=n.outChannels}}}return l.toTensor()},$l.prototype.conv3d=function(t,e,n){for(var r=n.filterDepth,o=n.filterHeight,i=n.filterWidth,a=n.dilationDepth,s=n.dilationHeight,u=n.dilationWidth,c=n.padInfo.front,l=n.padInfo.left,h=n.padInfo.top,p=or(n.outShape,t.dtype),f=this.readSync(t.dataId),d=this.readSync(e.dataId),v=p.values,m=0;m<n.batchSize;++m)for(var g=m*t.strides[0],y=m*p.strides[0],x=0;x<n.outDepth;++x)for(var b=y+x*p.strides[1],w=x*n.strideDepth-c,C=0;C<r;C++){var E=w+C*a;if(!(E<0||E>=n.inDepth))for(var _=C*e.strides[0],R=g+E*t.strides[1],I=0;I<n.outHeight;++I)for(var S=b+I*p.strides[2],k=I*n.strideHeight-h,N=0;N<o;N++){var A=k+N*s;if(!(A<0||A>=n.inHeight))for(var T=_+N*e.strides[1],D=R+A*t.strides[2],F=0;F<n.outWidth;++F)for(var M=S+F*n.outChannels,P=F*n.strideWidth-l,O=0;O<i;O++){var B=P+O*u;if(!(B<0||B>=n.inWidth))for(var L=T+O*e.strides[2],W=D+B*n.inChannels,z=L,U=0;U<n.inChannels;++U){for(var V=f[W+U],G=0;G<n.outChannels;++G)v[M+G]+=V*d[z+G];z+=n.outChannels}}}}return p.toTensor()},$l.prototype.conv2dDerInput=function(t,e,n){this.assertNotComplex([t,e],"conv2dDerInput");for(var r=or(n.inShape,"float32"),o=r.values,i=this.readSync(t.dataId),a=this.readSync(e.dataId),s=e.strides,u=s[0],c=s[1],l=s[2],h=n.batchSize,p=n.filterHeight,f=n.filterWidth,d=n.inChannels,v=n.inHeight,m=n.inWidth,g=n.outChannels,y=n.outHeight,x=n.outWidth,b=n.strideHeight,w=n.strideWidth,C=n.dataFormat,E=p-1-n.padInfo.top,_=f-1-n.padInfo.left,R="channelsLast"===C,I=r.strides[0],S=R?r.strides[1]:r.strides[2],k=R?r.strides[2]:1,N=R?1:r.strides[1],A=t.strides[0],T=R?t.strides[1]:t.strides[2],D=R?t.strides[2]:1,F=R?1:t.strides[1],M=0;M<h;++M)for(var P=0;P<d;++P)for(var O=0;O<v;++O)for(var B=O-E,L=Math.max(0,Math.ceil(B/b)),W=Math.min(y,(p+B)/b),z=0;z<m;++z){for(var U=z-_,V=Math.max(0,Math.ceil(U/w)),G=Math.min(x,(f+U)/w),H=0,j=L;j<W;++j)for(var q=j*b-B,$=V;$<G;++$)for(var K=A*M+T*j+D*$,X=u*(p-1-q)+c*(f-1-($*w-U))+l*P,Y=0;Y<g;++Y)H+=i[K+F*Y]*a[X+Y];o[I*M+S*O+k*z+N*P]=H}return r.toTensor()},$l.prototype.conv3dDerInput=function(t,e,n){for(var r=or(n.inShape,"float32"),o=r.values,i=r.strides,a=i[0],s=i[1],u=i[2],c=i[3],l=this.readSync(t.dataId),h=t.strides,p=h[0],f=h[1],d=h[2],v=h[3],m=this.readSync(e.dataId),g=e.strides,y=g[0],x=g[1],b=g[2],w=g[3],C=n.batchSize,E=n.filterDepth,_=n.filterHeight,R=n.filterWidth,I=n.inChannels,S=n.inDepth,k=n.inHeight,N=n.inWidth,A=n.outChannels,T=n.outDepth,D=n.outHeight,F=n.outWidth,M=n.strideDepth,P=n.strideHeight,O=n.strideWidth,B=E-1-n.padInfo.front,L=_-1-n.padInfo.top,W=R-1-n.padInfo.left,z=0;z<C;++z)for(var U=0;U<I;++U)for(var V=0;V<S;++V)for(var G=V-B,H=Math.max(0,Math.ceil(G/M)),j=Math.min(T,(E+G)/M),q=0;q<k;++q)for(var $=q-L,K=Math.max(0,Math.ceil($/P)),X=Math.min(D,(_+$)/P),Y=0;Y<N;++Y){for(var J=Y-W,Q=Math.max(0,Math.ceil(J/O)),Z=Math.min(F,(R+J)/O),tt=0,et=H;et<j;++et)for(var nt=et*M-G,rt=K;rt<X;++rt)for(var ot=rt*P-$,it=Q;it<Z;++it)for(var at=p*z+f*et+d*rt+v*it,st=y*(E-1-nt)+x*(_-1-ot)+b*(R-1-(it*O-J))+w*U,ut=0;ut<A;++ut)tt+=l[at+ut]*m[st+ut];o[a*z+s*V+u*q+c*Y+U]=tt}return r.toTensor()},$l.prototype.conv2dDerFilter=function(t,e,n){this.assertNotComplex([t,e],"conv2dDerFilter");for(var r=n.strideHeight,o=n.strideWidth,i=n.filterHeight,a=n.filterWidth,s="channelsLast"===n.dataFormat,u=or(n.filterShape,"float32"),c=n.padInfo.left,l=n.padInfo.top,h=this.bufferSync(t),p=this.bufferSync(e),f=0;f<i;++f)for(var d=Math.max(0,Math.ceil((l-f)/r)),v=Math.min(n.outHeight,(n.inHeight+l-f)/r),m=0;m<a;++m)for(var g=Math.max(0,Math.ceil((c-m)/o)),y=Math.min(n.outWidth,(n.inWidth+c-m)/o),x=0;x<n.inChannels;++x)for(var b=0;b<n.outChannels;++b){for(var w=0,C=0;C<n.batchSize;++C)for(var E=d;E<v;++E)for(var _=f+E*r-l,R=g;R<y;++R){var I=m+R*o-c;w+=s?h.get(C,_,I,x)*p.get(C,E,R,b):h.get(C,x,_,I)*p.get(C,b,E,R)}u.set(w,f,m,x,b)}return u.toTensor()},$l.prototype.conv3dDerFilter=function(t,e,n){for(var r=n.strideDepth,o=n.strideHeight,i=n.strideWidth,a=n.filterDepth,s=n.filterHeight,u=n.filterWidth,c=or(n.filterShape,"float32"),l=c.values,h=c.strides,p=h[0],f=h[1],d=h[2],v=h[3],m=this.readSync(e.dataId),g=e.strides,y=g[0],x=g[1],b=g[2],w=g[3],C=this.readSync(t.dataId),E=t.strides,_=E[0],R=E[1],I=E[2],S=E[3],k=n.padInfo.front,N=n.padInfo.left,A=n.padInfo.top,T=0;T<a;++T)for(var D=Math.max(0,Math.ceil((k-T)/r)),F=Math.min(n.outDepth,(n.inDepth+k-T)/r),M=T*p,P=0;P<s;++P)for(var O=Math.max(0,Math.ceil((A-P)/o)),B=Math.min(n.outHeight,(n.inHeight+A-P)/o),L=P*f+M,W=0;W<u;++W)for(var z=Math.max(0,Math.ceil((N-W)/i)),U=Math.min(n.outWidth,(n.inWidth+N-W)/i),V=W*d+L,G=0;G<n.inChannels;++G)for(var H=G*v+V,j=0;j<n.outChannels;++j){for(var q=0,$=0;$<n.batchSize;++$)for(var K=$*_,X=$*y,Y=D;Y<F;++Y)for(var J=(T+Y*r-k)*R+K,Q=Y*x+X,Z=O;Z<B;++Z)for(var tt=(P+Z*o-A)*I+J,et=Z*b+Q,nt=z;nt<U;++nt){var rt=nt*w+et;q+=C[(W+nt*i-N)*S+tt+G]*m[rt+j]}l[H+j]=q}return c.toTensor()},$l.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=or(n.outShape,t.dtype),h=this.readSync(t.dataId),p=this.readSync(e.dataId),f=l.values,d=0;d<n.batchSize;++d)for(var v=d*t.strides[0],m=d*l.strides[0],g=0;g<n.outHeight;++g)for(var y=m+g*l.strides[1],x=g*n.strideHeight-s,b=0;b<r;++b){var w=x+b*i;if(!(w<0||w>=n.inHeight))for(var C=b*e.strides[0],E=v+w*t.strides[1],_=0;_<n.outWidth;++_)for(var R=y+_*l.strides[2],I=_*n.strideWidth-u,S=0;S<o;++S){var k=I+S*a;if(!(k<0||k>=n.inWidth))for(var N=C+S*e.strides[1],A=E+k*n.inChannels,T=R,D=N,F=0;F<n.inChannels;++F){for(var M=h[A+F],P=0;P<c;++P)f[T+P]+=M*p[D+P];T+=c,D+=c}}}return l.toTensor()},$l.prototype.depthwiseConv2DDerInput=function(t,e,n){this.assertNotComplex([t,e],"depthwiseConv2DDerInput");for(var r=or(n.inShape,"float32"),o=r.values,i=r.strides,a=i[0],s=i[1],u=i[2],c=this.readSync(t.dataId),l=t.strides,h=l[0],p=l[1],f=l[2],d=this.readSync(e.dataId),v=e.strides,m=v[0],g=v[1],y=v[2],x=n.batchSize,b=n.filterHeight,w=n.filterWidth,C=n.inChannels,E=n.inHeight,_=n.inWidth,R=n.outChannels,I=n.outHeight,S=n.outWidth,k=n.strideHeight,N=n.strideWidth,A=b-1-n.padInfo.top,T=w-1-n.padInfo.left,D=R/C,F=0;F<x;++F)for(var M=0;M<C;++M)for(var P=0;P<E;++P)for(var O=P-A,B=Math.max(0,Math.ceil(O/k)),L=Math.min(I,(b+O)/k),W=0;W<_;++W){for(var z=W-T,U=Math.max(0,Math.ceil(z/N)),V=Math.min(S,(w+z)/N),G=0,H=B;H<L;++H)for(var j=H*k-O,q=U;q<V;++q)for(var $=h*F+p*H+f*q,K=m*(b-1-j)+g*(w-1-(q*N-z))+y*M,X=0;X<D;++X)G+=c[$+(M*D+X)]*d[K+X];o[a*F+s*P+u*W+M]=G}return r.toTensor()},$l.prototype.depthwiseConv2DDerFilter=function(t,e,n){this.assertNotComplex([t,e],"depthwiseConv2DDerFilter");for(var r=n.strideHeight,o=n.strideWidth,i=n.filterHeight,a=n.filterWidth,s=or(n.filterShape,"float32"),u=n.padInfo.left,c=n.padInfo.top,l=n.outChannels/n.inChannels,h=this.bufferSync(t),p=this.bufferSync(e),f=0;f<i;++f)for(var d=Math.max(0,Math.ceil((c-f)/r)),v=Math.min(n.outHeight,(n.inHeight+c-f)/r),m=0;m<a;++m)for(var g=Math.max(0,Math.ceil((u-m)/o)),y=Math.min(n.outWidth,(n.inWidth+u-m)/o),x=0;x<n.outChannels;++x){for(var b=Math.trunc(x/l),w=x%l,C=0,E=0;E<n.batchSize;++E)for(var _=d;_<v;++_)for(var R=f+_*r-c,I=g;I<y;++I){var S=m+I*o-u;C+=h.get(E,R,S,b)*p.get(E,_,I,x)}s.set(C,f,m,b,w)}return s.toTensor()},$l.prototype.tile=function(t,e){return this.assertNotComplex(t,"tile"),Io(this.bufferSync(t),e)},$l.prototype.pad=function(n,t,e){this.assertNotComplex(n,"pad");var r=t.map(function(t,e){return t[0]+n.shape[e]+t[1]}),o=t.map(function(t){return t[0]}),i=this.bufferSync(n),a=or(r,n.dtype);0!==e&&a.values.fill(e);for(var s=0;s<n.size;s++){var u=i.indexToLoc(s),c=u.map(function(t,e){return t+o[e]});a.set.apply(a,[i.get.apply(i,u)].concat(c))}return a.toTensor()},$l.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=this.readSync(t.dataId),i=or(n,t.dtype),a=this.bufferSync(t);for(r=0;r<t.size;++r){for(var s=a.indexToLoc(r),u=new Array(s.length),c=0;c<u.length;c++)u[c]=s[e[c]];var l=i.locToIndex(u);i.values[l]=o[r]}return i.toTensor()},$l.prototype.gather=function(t,e,n){this.assertNotComplex([t,e],"gather");var r=t.shape.slice(),o=this.readSync(e.dataId);r[n]=o.length;for(var i=or(r,t.dtype),a=this.bufferSync(t),s=0;s<i.size;++s){var u=i.indexToLoc(s),c=u.slice();c[n]=o[u[n]];var l=a.locToIndex(c);i.values[s]=a.values[l]}return i.toTensor()},$l.prototype.batchToSpaceND=function(t,e,n){this.assertNotComplex([t],"batchToSpaceND");var r=e.reduce(function(t,e){return t*e}),o=Dr(t.shape,e,r),i=Fr(o.length,e.length),a=Mr(t.shape,e,r),s=Pr(n,e.length),u=Or(a,n,e.length);return t.reshape(o).transpose(i).reshape(a).slice(s,u)},$l.prototype.spaceToBatchND=function(t,e,n){this.assertNotComplex([t],"spaceToBatchND");var r=e.reduce(function(t,e){return t*e}),o=[[0,0]];o.push.apply(o,n);for(var i=1+e.length;i<t.shape.length;++i)o.push([0,0]);var a=t.pad(o),s=Dr(a.shape,e,r,!1),u=Fr(s.length,e.length,!1),c=Mr(a.shape,e,r,!1);return a.reshape(s).transpose(u).reshape(c)},$l.prototype.pool=function(t,e,n){this.assertNotComplex(t,"pool");for(var r=e.strideHeight,o=e.strideWidth,i=e.dilationHeight,a=e.dilationWidth,s=e.effectiveFilterHeight,u=e.effectiveFilterWidth,c=e.padInfo.top,l=e.padInfo.left,h="max"===n?Number.NEGATIVE_INFINITY:Number.POSITIVE_INFINITY,p=this.readSync(t.dataId),f=or(e.outShape,t.dtype),d=f.values,v=e.outShape[1]*e.outShape[2]*e.outShape[3],m=e.outShape[2]*e.outShape[3],g=e.outShape[3],y=0;y<e.batchSize;++y)for(var x=y*v,b=y*t.strides[0],w=0;w<e.inChannels;++w)for(var C=0;C<e.outHeight;++C)for(var E=C*r-c,_=Math.max(0,E),R=Math.min(e.inHeight,s+E),I=x+C*m,S=0;S<e.outWidth;++S){for(var k=S*o-l,N=Math.max(0,k),A=Math.min(e.inWidth,u+k),T=h,D=0,F=0,M=_;M<R;M+=i){for(var P=b+M*t.strides[1],O=N;O<A;O+=a){var B=p[P+O*t.strides[2]+w];"max"===n&&T<B?T=B:"avg"===n&&(D+=B,F++)}if(isNaN(T))break}d[I+S*g+w]="avg"===n?D/F:T}return f.toTensor()},$l.prototype.maxPool=function(t,e){return this.pool(t,e,"max")},$l.prototype.maxPoolPositions=function(t,e){for(var n=or(e.outShape,"int32"),r=e.strideHeight,o=e.strideWidth,i=e.dilationHeight,a=e.dilationWidth,s=e.effectiveFilterHeight,u=e.effectiveFilterWidth,c=e.padInfo.top,l=e.padInfo.left,h=this.bufferSync(t),p=0;p<e.batchSize;++p)for(var f=0;f<e.inChannels;++f)for(var d=0;d<e.outHeight;++d){for(var v=d*r-c,m=v;m<0;)m+=i;for(var g=Math.min(e.inHeight,s+v),y=0;y<e.outWidth;++y){for(var x=y*o-l,b=x;b<0;)b+=a;for(var w=Math.min(e.inWidth,u+x),C=Number.NEGATIVE_INFINITY,E=-1,_=m;_<g;_+=i)for(var R=_-v,I=b;I<w;I+=a){var S=I-x,k=h.get(p,_,I,f);C<k&&(C=k,E=R*u+S)}n.set(E,p,d,y,f)}}return n.toTensor()},$l.prototype.maxPoolBackprop=function(t,e,n,r){this.assertNotComplex([e,n],"maxPoolBackprop");for(var o=this.maxPoolPositions(e,r),i=r.strideHeight,a=r.strideWidth,s=r.dilationHeight,u=r.dilationWidth,c=r.effectiveFilterHeight,l=r.effectiveFilterWidth,h=l-1-r.padInfo.left,p=c-1-r.padInfo.top,f=or(e.shape,"float32"),d=this.bufferSync(o),v=this.bufferSync(t),m=0;m<r.batchSize;++m)for(var g=0;g<r.inChannels;++g)for(var y=0;y<r.inHeight;++y)for(var x=0;x<r.inWidth;++x){for(var b=y-p,w=x-h,C=0,E=0;E<c;E+=s){var _=(b+E)/i;if(!(_<0||_>=r.outHeight||Math.floor(_)!==_))for(var R=0;R<l;R+=u){var I=(w+R)/a;if(!(I<0||I>=r.outWidth||Math.floor(I)!==I)){var S=c*l-1-d.get(m,_,I,g)===E*l+R?1:0;0!=S&&(C+=v.get(m,_,I,g)*S)}}}f.set(C,m,y,x,g)}return f.toTensor()},$l.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=or(e.shape,"float32"),d=1/(i*a),v=this.bufferSync(t),m=0;m<n.batchSize;++m)for(var g=0;g<n.inChannels;++g)for(var y=0;y<n.inHeight;++y)for(var x=0;x<n.inWidth;++x){for(var b=y-p,w=x-h,C=0,E=0;E<c;E+=s){var _=(b+E)/r;if(!(_<0||_>=n.outHeight||Math.floor(_)!==_))for(var R=0;R<l;R+=u){var I=(w+R)/o;I<0||I>=n.outWidth||Math.floor(I)!==I||(C+=v.get(m,_,I,g))}}f.set(C*d,m,y,x,g)}return f.toTensor()},$l.prototype.pool3d=function(t,e,n){this.assertNotComplex(t,"pool3d");for(var r=e.strideDepth,o=e.strideHeight,i=e.strideWidth,a=e.dilationDepth,s=e.dilationHeight,u=e.dilationWidth,c=e.effectiveFilterDepth,l=e.effectiveFilterHeight,h=e.effectiveFilterWidth,p=e.padInfo.front,f=e.padInfo.top,d=e.padInfo.left,v="max"===n?Number.NEGATIVE_INFINITY:Number.POSITIVE_INFINITY,m=this.readSync(t.dataId),g=or(e.outShape,t.dtype),y=g.values,x=e.outShape[1]*e.outShape[2]*e.outShape[3]*e.outShape[4],b=e.outShape[2]*e.outShape[3]*e.outShape[4],w=e.outShape[3]*e.outShape[4],C=e.outShape[4],E=0;E<e.batchSize;++E)for(var _=E*x,R=E*t.strides[0],I=0;I<e.inChannels;++I)for(var S=0;S<e.outDepth;++S){for(var k=S*r-p,N=k;N<0;)N+=a;for(var A=Math.min(e.inDepth,c+k),T=_+S*b,D=0;D<e.outHeight;++D){for(var F=D*o-f,M=F;M<0;)M+=s;for(var P=Math.min(e.inHeight,l+F),O=T+D*w,B=0;B<e.outWidth;++B){for(var L=B*i-d,W=L;W<0;)W+=u;for(var z=Math.min(e.inWidth,h+L),U=O+B*C,V=v,G=0,H=0,j=N;j<A;j+=a){for(var q=R+j*t.strides[1],$=M;$<P;$+=s){for(var K=q+$*t.strides[2],X=W;X<z;X+=u){var Y=m[K+X*t.strides[3]+I];if("max"===n&&V<Y?V=Y:"avg"===n&&(G+=Y,H++),isNaN(V))break}if(isNaN(V))break}if(isNaN(V))break}y[U+I]="avg"===n?G/H:V}}}return g.toTensor()},$l.prototype.avgPool3d=function(t,e){return this.assertNotComplex(t,"avgPool3d"),this.pool3d(t,e,"avg").toFloat()},$l.prototype.avgPool3dBackprop=function(t,e,n){this.assertNotComplex([t,e],"avgPool3dBackprop");for(var r=n.strideDepth,o=n.strideHeight,i=n.strideWidth,a=n.filterDepth,s=n.filterHeight,u=n.filterWidth,c=n.dilationDepth,l=n.dilationHeight,h=n.dilationWidth,p=n.effectiveFilterDepth,f=n.effectiveFilterHeight,d=n.effectiveFilterWidth,v=p-1-n.padInfo.front,m=d-1-n.padInfo.left,g=f-1-n.padInfo.top,y=or(e.shape,"float32"),x=1/(a*s*u),b=this.bufferSync(t),w=0;w<n.batchSize;++w)for(var C=0;C<n.inChannels;++C)for(var E=0;E<n.inDepth;++E)for(var _=0;_<n.inHeight;++_)for(var R=0;R<n.inWidth;++R){for(var I=E-v,S=_-g,k=R-m,N=0,A=0;A<p;A+=c){var T=(I+A)/r;if(!(T<0||T>=n.outDepth||Math.floor(T)!==T))for(var D=0;D<f;D+=l){var F=(S+D)/o;if(!(F<0||F>=n.outHeight||Math.floor(F)!==F))for(var M=0;M<d;M+=h){var P=(k+M)/i;P<0||P>=n.outWidth||Math.floor(P)!==P||(N+=b.get(w,T,F,P,C))}}}y.set(N*x,w,E,_,R,C)}return y.toTensor()},$l.prototype.maxPool3d=function(t,e){return this.assertNotComplex(t,"maxPool3d"),this.pool3d(t,e,"max").toFloat()},$l.prototype.maxPool3dPositions=function(t,e){for(var n=or(e.outShape,"int32"),r=e.strideDepth,o=e.strideHeight,i=e.strideWidth,a=e.dilationDepth,s=e.dilationHeight,u=e.dilationWidth,c=e.effectiveFilterDepth,l=e.effectiveFilterHeight,h=e.effectiveFilterWidth,p=e.padInfo.front,f=e.padInfo.top,d=e.padInfo.left,v=this.bufferSync(t),m=0;m<e.batchSize;++m)for(var g=0;g<e.inChannels;++g)for(var y=0;y<e.outDepth;++y){for(var x=y*r-p,b=x;b<0;)b+=a;for(var w=Math.min(e.inDepth,c+x),C=0;C<e.outHeight;++C){for(var E=C*o-f,_=E;_<0;)_+=s;for(var R=Math.min(e.inHeight,l+E),I=0;I<e.outWidth;++I){for(var S=I*i-d,k=S;k<0;)k+=u;for(var N=Math.min(e.inWidth,h+S),A=Number.NEGATIVE_INFINITY,T=-1,D=b;D<w;D+=a)for(var F=D-x,M=_;M<R;M+=s)for(var P=M-E,O=k;O<N;O+=u){var B=O-S,L=v.get(m,D,M,O,g);A<=L&&(A=L,T=F*l*h+P*l+B)}n.set(T,m,y,C,I,g)}}}return n.toTensor()},$l.prototype.maxPool3dBackprop=function(t,e,n,r){this.assertNotComplex([e,n],"maxPool3dBackprop");for(var o=this.maxPool3dPositions(e,r),i=r.strideDepth,a=r.strideHeight,s=r.strideWidth,u=r.dilationDepth,c=r.dilationHeight,l=r.dilationWidth,h=r.effectiveFilterDepth,p=r.effectiveFilterHeight,f=r.effectiveFilterWidth,d=h-1-r.padInfo.front,v=f-1-r.padInfo.left,m=p-1-r.padInfo.top,g=or(e.shape,"float32"),y=this.bufferSync(o),x=this.bufferSync(t),b=0;b<r.batchSize;++b)for(var w=0;w<r.inChannels;++w)for(var C=0;C<r.inDepth;++C)for(var E=0;E<r.inHeight;++E)for(var _=0;_<r.inWidth;++_){for(var R=C-d,I=E-m,S=_-v,k=0,N=0;N<h;N+=u){var A=(R+N)/i;if(!(A<0||A>=r.outDepth||Math.floor(A)!==A))for(var T=0;T<p;T+=c){var D=(I+T)/a;if(!(D<0||D>=r.outHeight||Math.floor(D)!==D))for(var F=0;F<f;F+=l){var M=(S+F)/s;if(!(M<0||M>=r.outWidth||Math.floor(M)!==M)){var P=h*p*f-1-y.get(b,A,D,M,w)===N*p*f+T*f+F?1:0;0!=P&&(k+=x.get(b,A,D,M,w)*P)}}}}g.set(k,b,C,E,_,w)}return g.toTensor()},$l.prototype.cast=function(t,e){return go(t,e,this)},$l.prototype.reshape=function(t,e){return yo(t,e)},$l.prototype.avgPool=function(t,e){return this.assertNotComplex(t,"avgPool"),this.pool(t,e,"avg").toFloat()},$l.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=this.readSync(t.dataId),l=new Float32Array(L([i,e,n,u])),h=[r&&1<e?a-1:a,r&&1<n?s-1:s],p=[r&&1<e?e-1:e,r&&1<n?n-1:n],f=0,d=h[0]/p[0],v=h[1]/p[1],m=0;m<i;m++)for(var g=0;g<e;g++)for(var y=d*g,x=Math.floor(y),b=y-x,w=Math.min(a-1,Math.ceil(y)),C=m*t.strides[0]+x*t.strides[1],E=m*t.strides[0]+w*t.strides[1],_=0;_<n;_++)for(var R=v*_,I=Math.floor(R),S=R-I,k=Math.min(s-1,Math.ceil(R)),N=C+I*t.strides[2],A=E+I*t.strides[2],T=C+ +k*t.strides[2],D=E+k*t.strides[2],F=0;F<u;F++){var M=c[N+F],P=c[A+F],O=M+(c[T+F]-M)*S,B=O+(P+(c[D+F]-P)*S-O)*b;l[f++]=B}return wn(l,[i,e,n,u])},$l.prototype.resizeBilinearBackprop=function(t,e,n){this.assertNotComplex([t,e],"resizeBilinearBackprop");for(var r=e.shape,o=r[0],i=r[1],a=r[2],s=r[3],u=t.shape,c=u[1],l=u[2],h=new Float32Array(o*i*a*s),p=[n&&1<c?i-1:i,n&&1<l?a-1:a],f=[n&&1<c?c-1:c,n&&1<l?l-1:l],d=p[0]/f[0],v=p[1]/f[1],m=this.readSync(t.dataId),g=0,y=0;y<o;y++)for(var x=y*e.strides[0],b=0;b<c;b++)for(var w=b*d,C=Math.floor(w),E=Math.min(Math.ceil(w),i-1),_=x+C*e.strides[1],R=x+E*e.strides[1],I=w-C,S=1-I,k=0;k<l;k++)for(var N=k*v,A=Math.floor(N),T=Math.min(Math.ceil(N),a-1),D=N-A,F=1-D,M=_+A*e.strides[2],P=_+T*e.strides[2],O=R+A*e.strides[2],B=R+T*e.strides[2],L=S*F,W=S*D,z=I*F,U=I*D,V=0;V<s;V++){var G=m[g++];h[M+V]+=G*L,h[P+V]+=G*W,h[O+V]+=G*z,h[B+V]+=G*U}return Sn(h,[o,a,i,s],e.dtype)},$l.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=this.readSync(t.dataId),l=new Float32Array(i*e*n*u),h=[r&&1<e?a-1:a,r&&1<n?s-1:s],p=[r&&1<e?e-1:e,r&&1<n?n-1:n],f=h[0]/p[0],d=h[1]/p[1],v=0,m=0;m<i;m++)for(var g=m*t.strides[0],y=0;y<e;y++)for(var x=f*y,b=g+Math.min(a-1,r?Math.round(x):Math.floor(x))*t.strides[1],w=0;w<n;w++)for(var C=d*w,E=b+Math.min(s-1,r?Math.round(C):Math.floor(C))*t.strides[2],_=0;_<u;_++){var R=c[E+_];l[v++]=R}return wn(l,[i,e,n,u],t.dtype)},$l.prototype.resizeNearestNeighborBackprop=function(t,e,n){this.assertNotComplex([t,e],"resizeNearestNeighborBackprop");for(var r=e.shape,o=r[0],i=r[1],a=r[2],s=r[3],u=t.shape,c=u[1],l=u[2],h=new Float32Array(o*i*a*s),p=this.readSync(t.dataId),f=[n&&1<c?i-1:i,n&&1<l?a-1:a],d=[n&&1<c?c-1:c,n&&1<l?l-1:l],v=f[0]/d[0],m=f[1]/d[1],g=1/v,y=1/m,x=2*Math.ceil(g)+2,b=2*Math.ceil(y)+2,w=0;w<o;w++)for(var C=w*e.strides[0],E=0;E<i;E++)for(var _=C+E*e.strides[1],R=Math.floor(E*g),I=Math.floor(R-x/2),S=0;S<a;S++)for(var k=_+S*e.strides[2],N=Math.floor(S*y),A=Math.floor(N-b/2),T=0;T<s;T++){for(var D=0,F=0;F<x;F++){var M=F+I;if(!(M<0||c<=M)){var P=C+M*t.strides[1],O=M*v;if(E===Math.min(i-1,n?Math.round(O):Math.floor(O)))for(var B=0;B<b;B++){var L=B+A;if(!(L<0||l<=L)){var W=P+L*t.strides[2],z=L*m;S===Math.min(a-1,n?Math.round(z):Math.floor(z))&&(D+=p[W+T])}}}}h[k+T]=D}return Sn(h,e.shape,e.dtype)},$l.prototype.batchNormalization=function(t,e,n,r,o,i){this.assertNotComplex([t,e,n,o,i],"batchNorm");for(var a=this.readSync(t.dataId),s=this.readSync(e.dataId),u=this.readSync(n.dataId),c=o?this.readSync(o.dataId):new Float32Array([1]),l=i?this.readSync(i.dataId):new Float32Array([0]),h=new Float32Array(a.length),p=l.length,f=c.length,d=u.length,v=s.length,m=0,g=0,y=0,x=0,b=0;b<a.length;++b)h[b]=l[m++]+(a[b]-s[g++])*c[y++]/Math.sqrt(u[x++]+r),p<=m&&(m=0),v<=g&&(g=0),f<=y&&(y=0),d<=x&&(x=0);return Sn(h,t.shape)},$l.prototype.localResponseNormalization4D=function(t,a,e,n,r){this.assertNotComplex(t,"localResponseNormalization4D");var s=t.shape[3],u=s-1,c=this.readSync(t.dataId),o=t.size,i=new Float32Array(o);function l(t){for(var e=t%s,n=t-e+Math.max(0,e-a),r=t-e+Math.min(e+a,u),o=0;n<=r;n++){var i=c[n];o+=i*i}return o}for(var h=0;h<o;h++){var p=l(h),f=c[h]*Math.pow(e+n*p,-r);i[h]=f}return Sn(i,t.shape)},$l.prototype.LRNGrad=function(t,e,n,r,o,i,a){this.assertNotComplex(t,"LRNGrad");for(var s=t.shape[3],u=this.readSync(t.dataId),c=this.readSync(e.dataId),l=this.readSync(n.dataId),h=new Float32Array(t.size),p=t.size,f=0;f<p;f++){for(var d=f%s,v=f-d+Math.max(0,d-r),m=f-d+Math.min(s,d+r+1),g=0,y=v;y<m;y++)g+=Math.pow(c[y],2);for(g=i*g+o,y=v;y<m;y++){var x=-2*i*a*c[y]*l[f]/g;f===y&&(x+=Math.pow(g,-a)),x*=u[f],h[y]+=x}}return Sn(h,t.shape)},$l.prototype.multinomial=function(t,e,n,r){this.assertNotComplex(t,"multinomial");for(var o=e?t:Xr(t),i=o.shape[0],a=o.shape[1],s=Tn([i,n],"int32"),u=this.readSync(s.dataId),c=this.readSync(o.dataId),l=0;l<i;++l){var h=l*a,p=new Float32Array(a-1);p[0]=c[h];for(var f=1;f<p.length;++f)p[f]=p[f-1]+c[h+f];for(var d=Jn(r.toString()),v=l*n,m=0;m<n;++m){var g=d();u[v+m]=p.length;for(var y=0;y<p.length;y++)if(g<p[y]){u[v+m]=y;break}}}return s},$l.prototype.oneHot=function(t,e,n,r){this.assertNotComplex(t,"oneHot");var o=new Float32Array(t.size*e);o.fill(r);for(var i=this.readSync(t.dataId),a=0;a<t.size;++a)0<=i[a]&&i[a]<e&&(o[a*e+i[a]]=n);return Rn(o,[t.size,e],"int32")},$l.prototype.nonMaxSuppression=function(t,e,n,r,o){return this.assertNotComplex(t,"nonMaxSuppression"),Eo(this.readSync(t.dataId),this.readSync(e.dataId),n,r,o)},$l.prototype.fft=function(t){return this.fftBatch(t,!1)},$l.prototype.ifft=function(t){return this.fftBatch(t,!0)},$l.prototype.fftBatch=function(t,e){for(var n=t.shape[0],r=t.shape[1],o=or(t.shape,"float32"),i=or(t.shape,"float32"),a=xn(t).as2D(n,r),s=bn(t).as2D(n,r),u=0;u<n;u++)for(var c=a.slice([u,0],[1,r]),l=s.slice([u,0],[1,r]),h=yn(c,l),p=this.readSync(this.fftImpl(h,e).dataId),f=0;f<r;f++){var d=Co(p,f);o.values[u*r+f]=d.real,i.values[u*r+f]=d.imag}return yn(o.toTensor(),i.toTensor()).as2D(n,r)},$l.prototype.fftImpl=function(t,e){var n=t.as1D(),r=n.size;if(this.isExponentOf2(r)){var o=this.fftRadix2(n,r,e).as2D(t.shape[0],t.shape[1]);return e&&(o=yn(xn(o).div(En(r)),bn(o).div(En(r)))),o}var i=this.readSync(t.dataId),a=function(t){for(var e=new Float32Array(t.length/2),n=new Float32Array(t.length/2),r=0;r<t.length;r+=2)e[r/2]=t[r],n[r/2]=t[r+1];return{real:e,imag:n}}(this.fourierTransformByMatmul(i,r,e));return yn(a.real,a.imag).as2D(t.shape[0],t.shape[1])},$l.prototype.isExponentOf2=function(t){return 0==(t&t-1)},$l.prototype.fftRadix2=function(t,e,n){if(1===e)return t;var r=this.readSync(t.dataId),o=e/2,i=function(t){for(var e=Math.ceil(t.length/4),n=new Float32Array(e),r=new Float32Array(e),o=0;o<t.length;o+=4)n[Math.floor(o/4)]=t[o],r[Math.floor(o/4)]=t[o+1];return{real:n,imag:r}}(r),a=yn(i.real,i.imag).as1D(),s=function(t){for(var e=Math.floor(t.length/4),n=new Float32Array(e),r=new Float32Array(e),o=2;o<t.length;o+=4)n[Math.floor(o/4)]=t[o],r[Math.floor(o/4)]=t[o+1];return{real:n,imag:r}}(r),u=yn(s.real,s.imag).as1D();a=this.fftRadix2(a,o,n),u=this.fftRadix2(u,o,n);var c=function(t,e){for(var n=new Float32Array(t/2),r=new Float32Array(t/2),o=0;o<Math.ceil(t/2);o++){var i=(e?2:-2)*Math.PI*(o/t);n[o]=Math.cos(i),r[o]=Math.sin(i)}return{real:n,imag:r}}(e,n),l=yn(c.real,c.imag).mul(u),h=a.add(l),p=a.sub(l),f=xn(h).concat(xn(p)),d=bn(h).concat(bn(p));return yn(f,d).as1D()},$l.prototype.fourierTransformByMatmul=function(t,e,n){for(var r=new Float32Array(2*e),o=0;o<e;o++){for(var i=0,a=0,s=0;s<e;s++){var u=(d=o*s,v=e,m=(n?2:-2)*Math.PI*(d/v),{real:Math.cos(m),imag:Math.sin(m)}),c=Co(t,s);i+=c.real*u.real-c.imag*u.imag,a+=c.real*u.imag+c.imag*u.real}n&&(i/=e,a/=e),h=i,p=a,(l=r)[2*(f=o)]=h,l[2*f+1]=p}var l,h,p,f,d,v,m;return r},$l.prototype.depthToSpace=function(t,e,n){O("NHWC"===n,function(){return"Only NHWC dataFormat supported on CPU for depthToSpace. Got "+n}),O(1<e,function(){return"blockSize should be > 1 for depthToSpace, but was: "+e});for(var r=t.shape[0],o=t.shape[1],i=t.shape[2],a=t.shape[3],s=o*e,u=i*e,c=a/(e*e),l=this.readSync(t.dataId),h=new Float32Array(r*s*u*c),p=0,f=0;f<r;++f)for(var d=0;d<s;++d)for(var v=Math.floor(d/e),m=d%e,g=0;g<u;++g)for(var y=Math.floor(g/e),x=(m*e+g%e)*c,b=0;b<c;++b){var w=b+x+a*(y+i*(v+o*f));h[p++]=l[w]}return Sn(h,[r,s,u,c])},$l.prototype.broadcastedBinaryOp=function(a,s,t,u){var e=ro(a.shape,s.shape),c=or(e,t),l=this.readSync(a.dataId),h=this.readSync(s.dataId),p=eo(a.shape,e),f=eo(s.shape,e),d=c.values;if(p.length+f.length===0)for(var n=0;n<d.length;++n)d[n]=u(l[n%l.length],h[n%h.length]);else{var v=this.bufferSync(a),m=this.bufferSync(s),r=function(t){var e=c.indexToLoc(t),n=e.slice(-a.rank);p.forEach(function(t){return n[t]=0});var r=v.locToIndex(n),o=e.slice(-s.rank);f.forEach(function(t){return o[t]=0});var i=m.locToIndex(o);d[t]=u(l[r],h[i])};for(n=0;n<d.length;++n)r(n)}return 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Please use float32 or int32 tensors.");if(p<0||255<f)throw new Error("Tensor values for a int32 Tensor must be in the range [0 - 255] but got range ["+p+" - "+f+"].")}for(d="float32"===e.dtype?255:1,v=new Uint8ClampedArray(o*r*4),m=0;m<r*o;++m)b=x=y=g=void 0,1===i?(g=a[m]*d,y=a[m]*d,x=a[m]*d,b=255):3===i?(g=a[3*m]*d,y=a[3*m+1]*d,x=a[3*m+2]*d,b=255):4===i&&(g=a[4*m]*d,y=a[4*m+1]*d,x=a[4*m+2]*d,b=a[4*m+3]*d),v[0+(w=4*m)]=Math.round(g),v[1+w]=Math.round(y),v[2+w]=Math.round(x),v[3+w]=Math.round(b);return null!=R&&(R.width=o,R.height=r,C=R.getContext("2d"),E=new ImageData(v,o,r),C.putImageData(E,0,0)),e!==_&&e.dispose(),[2,v]}})})},fromPixels:rp}),ip=(up.prototype.getClassName=function(){return this.constructor.className},up.fromConfig=function(t,e){return new t(e)},up),ap=(sp.getMap=function(){return null==sp.instance&&(sp.instance=new sp),sp.instance},sp.register=function(t){sp.getMap().classNameMap[t.className]=[t,t.fromConfig]},sp);function sp(){this.classNameMap={}}function up(){}function cp(t){O(null!=t.className,function(){return"Class being registered does not have the static className property defined."}),O("string"==typeof t.className,function(){return"className is required to be a string, but got type "+typeof t.className}),O(0<t.className.length,function(){return"Class being registered has an empty-string as its className, which is disallowed."}),ap.register(t)}var lp=Object.freeze({Serializable:ip,SerializationMap:ap,registerClass:cp});function hp(){return 32===qt.backend.floatPrecision()?.001:.1}function pp(t,e,n){var r=!0;if((z(t)||z(e))&&(r=!1),z(t)&&z(e)&&(r=!0),r){var o=t.constructor.name,i=e.constructor.name;if(o!==i)throw new Error("Arrays are of different type. 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t=a.mul(u.rho).add(i.square().mul(1-u.rho)),e=s.add(u.epsilon).sqrt().div(a.add(u.epsilon).sqrt()).mul(i),n=s.mul(u.rho).add(e.square().mul(1-u.rho));a.assign(t),s.assign(n);var r=e.mul(-u.learningRate).add(o);o.assign(r)})}}),this.incrementIterations()},wp.prototype.dispose=function(){null!=this.accumulatedUpdates&&(Ze(this.accumulatedGrads.map(function(t){return t.variable})),Ze(this.accumulatedUpdates.map(function(t){return t.variable})))},wp.prototype.getWeights=function(){return y(this,void 0,void 0,function(){var e;return I(this,function(t){switch(t.label){case 0:return e=this.accumulatedGrads.concat(this.accumulatedUpdates),[4,this.saveIterations()];case 1:return[2,[t.sent()].concat(e.map(function(t){return{name:t.originalName,tensor:t.variable}}))]}})})},wp.prototype.setWeights=function(n){return y(this,void 0,void 0,function(){var e;return I(this,function(t){switch(t.label){case 0:return[4,this.extractIterations(n)];case 1:return 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On(n).variable(!1)})}),null==d.accumulatedSecondMoment[e]&&(d.accumulatedSecondMoment[e]={originalName:t+"/v",variable:Qe(function(){return On(n).variable(!1)})});var r=Array.isArray(f)?f[e].tensor:f[t];if(null!=r){var o=d.accumulatedFirstMoment[e].variable,i=d.accumulatedSecondMoment[e].variable,a=o.mul(d.beta1).add(r.mul(1-d.beta1)),s=i.mul(d.beta2).add(r.square().mul(1-d.beta2)),u=a.div(h),c=s.div(p);o.assign(a),i.assign(s);var l=u.div(c.sqrt().add(d.epsilon)).mul(-d.learningRate).add(n);n.assign(l)}}),d.accBeta1.assign(d.accBeta1.mul(d.beta1)),d.accBeta2.assign(d.accBeta2.mul(d.beta2))}),this.incrementIterations()},Sp.prototype.dispose=function(){this.accBeta1.dispose(),this.accBeta2.dispose(),null!=this.accumulatedFirstMoment&&Ze(this.accumulatedFirstMoment.map(function(t){return t.variable})),null!=this.accumulatedSecondMoment&&Ze(this.accumulatedSecondMoment.map(function(t){return t.variable}))},Sp.prototype.getWeights=function(){return y(this,void 0,void 0,function(){var 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t(e.learningRate,e.beta1,e.beta2,e.epsilon)},Sp.className="Adam",Sp);function Sp(t,e,n,r){void 0===r&&(r=null);var o=Rp.call(this)||this;return o.learningRate=t,o.beta1=e,o.beta2=n,o.epsilon=r,o.accumulatedFirstMoment=[],o.accumulatedSecondMoment=[],Qe(function(){o.accBeta1=En(e).variable(),o.accBeta2=En(n).variable()}),null==r&&(o.epsilon=qt.backend.epsilon()),o}cp(Ip);var kp,Np=(e(Ap,kp=gp),Ap.prototype.applyGradients=function(f){var d=this,t=Array.isArray(f)?f.map(function(t){return t.name}):Object.keys(f);Qe(function(){var h=Fu(1,d.accBeta1),p=yu(-d.learningRate,d.iteration.mul(d.decay).add(1));t.forEach(function(t,e){var n=qt.registeredVariables[t];null==d.accumulatedFirstMoment[e]&&(d.accumulatedFirstMoment[e]={originalName:t+"/m",variable:On(n).variable(!1)}),null==d.accumulatedWeightedInfNorm[e]&&(d.accumulatedWeightedInfNorm[e]={originalName:t+"/v",variable:On(n).variable(!1)});var r=Array.isArray(f)?f[e].tensor:f[t];if(null!=r){var o=d.accumulatedFirstMoment[e].variable,i=d.accumulatedWeightedInfNorm[e].variable,a=o.mul(d.beta1).add(r.mul(1-d.beta1)),s=i.mul(d.beta2),u=r.abs(),c=s.maximum(u);o.assign(a),i.assign(c);var l=p.div(h).mul(a.div(c.add(d.epsilon))).add(n);n.assign(l)}}),d.iteration.assign(d.iteration.add(1)),d.accBeta1.assign(d.accBeta1.mul(d.beta1))}),this.incrementIterations()},Ap.prototype.dispose=function(){this.accBeta1.dispose(),this.iteration.dispose(),null!=this.accumulatedFirstMoment&&Ze(this.accumulatedFirstMoment.map(function(t){return t.variable})),null!=this.accumulatedWeightedInfNorm&&Ze(this.accumulatedWeightedInfNorm.map(function(t){return t.variable}))},Ap.prototype.getWeights=function(){return y(this,void 0,void 0,function(){return I(this,function(t){throw new Error("getWeights() is not implemented for Adamax yet.")})})},Ap.prototype.setWeights=function(t){return y(this,void 0,void 0,function(){return I(this,function(t){throw new Error("setWeights() is not implemented for Adamax 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t=i.c.mul(n).add(r);r.assign(t)})}}),this.incrementIterations()},Fp.prototype.setLearningRate=function(t){this.learningRate=t,null!=this.c&&this.c.dispose(),this.c=tn(En(-t))},Fp.prototype.dispose=function(){this.c.dispose()},Fp.prototype.getWeights=function(){return y(this,void 0,void 0,function(){return I(this,function(t){switch(t.label){case 0:return[4,this.saveIterations()];case 1:return[2,[t.sent()]]}})})},Fp.prototype.setWeights=function(e){return y(this,void 0,void 0,function(){return I(this,function(t){switch(t.label){case 0:return[4,this.extractIterations(e)];case 1:if(0!==(e=t.sent()).length)throw new Error("SGD optimizer does not have settable weights.");return[2]}})})},Fp.prototype.getConfig=function(){return{learningRate:this.learningRate}},Fp.fromConfig=function(t,e){return new t(e.learningRate)},Fp.className="SGD",Fp);function Fp(t){var e=Tp.call(this)||this;return e.learningRate=t,e.setLearningRate(t),e}cp(Dp);var Mp,Pp=(e(Op,Mp=Dp),Op.prototype.applyGradients=function(i){var a=this;(Array.isArray(i)?i.map(function(t){return t.name}):Object.keys(i)).forEach(function(t,e){var n=qt.registeredVariables[t];null==a.accumulations[e]&&(a.accumulations[e]={originalName:t+"/momentum",variable:Qe(function(){return On(n).variable(!1)})});var r=a.accumulations[e].variable,o=Array.isArray(i)?i[e].tensor:i[t];null!=o&&Qe(function(){var t,e=a.m.mul(r).add(o);t=a.useNesterov?a.c.mul(o.add(e.mul(a.m))).add(n):a.c.mul(e).add(n),r.assign(e),n.assign(t)})}),this.incrementIterations()},Op.prototype.dispose=function(){this.m.dispose(),null!=this.accumulations&&Ze(this.accumulations.map(function(t){return t.variable}))},Op.prototype.setMomentum=function(t){this.momentum=t},Op.prototype.getWeights=function(){return y(this,void 0,void 0,function(){return I(this,function(t){switch(t.label){case 0:return[4,this.saveIterations()];case 1:return[2,[t.sent()].concat(this.accumulations.map(function(t){return{name:t.originalName,tensor:t.variable}}))]}})})},Op.prototype.setWeights=function(e){return y(this,void 0,void 0,function(){return I(this,function(t){switch(t.label){case 0:return[4,this.extractIterations(e)];case 1:return e=t.sent(),this.accumulations=e.map(function(t){return{originalName:t.name,variable:t.tensor.variable(!1)}}),[2]}})})},Op.prototype.getConfig=function(){return{learningRate:this.learningRate,momentum:this.momentum,useNesterov:this.useNesterov}},Op.fromConfig=function(t,e){return new t(e.learningRate,e.momentum,e.useNesterov)},Op.className="Momentum",Op);function Op(t,e,n){void 0===n&&(n=!1);var r=Mp.call(this,t)||this;return r.learningRate=t,r.momentum=e,r.useNesterov=n,r.accumulations=[],r.m=En(r.momentum),r}cp(Pp);var Bp,Lp=(e(Wp,Bp=gp),Wp.prototype.applyGradients=function(e){var h=this;(Array.isArray(e)?e.map(function(t){return t.name}):Object.keys(e)).forEach(function(t,a){var 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Ff,Mf,Pf={getEnv:function(){if(!Ef)throw new Error("getEnv - environment is not defined, check isNodejs() and isBrowser()");return Ef},setEnv:Tf,initialize:Df,createBrowserEnv:If,createFileSystem:Sf,createNodejsEnv:kf,monkeyPatch:function(t){if(Ef||Df(),!Ef)throw new Error("monkeyPatch - environment is not defined, check isNodejs() and isBrowser()");var e=t.Canvas,n=void 0===e?Ef.Canvas:e,r=t.Image,o=void 0===r?Ef.Image:r;Ef.Canvas=n,Ef.Image=o,Ef.createCanvasElement=t.createCanvasElement||function(){return new n},Ef.createImageElement=t.createImageElement||function(){return new o},Ef.ImageData=t.ImageData||Ef.ImageData,Ef.Video=t.Video||Ef.Video,Ef.fetch=t.fetch||Ef.fetch,Ef.readFile=t.readFile||Ef.readFile},isBrowser:Nf,isNodejs:Af};function Of(t){return Pf.isNodejs()||"string"!=typeof t?t:document.getElementById(t)}function Bf(t){var e=Pf.getEnv(),n=e.Canvas;if(t instanceof e.CanvasRenderingContext2D)return t;var r=Of(t);if(!(r instanceof n))throw new Error("resolveContext2d - 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n=this.options.anchorPosition,r=n===Ff.BOTTOM_RIGHT||n===Ff.TOP_RIGHT,o=n===Ff.BOTTOM_LEFT||n===Ff.BOTTOM_RIGHT,i=this.measureWidth(t),a=this.measureHeight(),s=r?this.anchor.x-i:this.anchor.x,u=o?this.anchor.y-a:this.anchor.y;if(e){var c=e.width,l=e.height;return{x:Math.max(Math.min(s,c-i),0),y:Math.max(Math.min(u,l-a),0)}}return{x:s,y:u}},zf.prototype.draw=function(t){var e=Of(t),o=Bf(e),n=this.options,r=n.backgroundColor,i=n.fontColor,a=n.fontSize,s=n.fontStyle,u=n.padding;o.font=a+"px "+s;var c=this.measureWidth(o),l=this.measureHeight();o.fillStyle=r;var h=this.getUpperLeft(o,e);o.fillRect(h.x,h.y,c,l),o.fillStyle=i,this.text.forEach(function(t,e){var n=u+h.x,r=u+h.y+(e+1)*a;o.fillText(t,n,r)})},zf);function zf(t,e,n){void 0===n&&(n={}),this.text="string"==typeof t?[t]:t instanceof zf?t.text:t,this.anchor=e,this.options=new Lf(n)}var Uf=function(t){void 0===t&&(t={});var e=t.boxColor,n=t.lineWidth,r=t.label,o=t.drawLabelOptions;this.boxColor=e||"rgba(0, 0, 255, 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t=af(i.batchSize,0,1).map(function(t){var e=i.getInput(t);if(e instanceof yt){var n=Qp(e)?e:e.expandDims();return(n=fd(n,o)).shape[1]===r&&n.shape[2]===r||(n=zl.resizeBilinear(n,[r,r])),n.as3D(r,r,3)}if(e instanceof Pf.getEnv().Canvas)return op.fromPixels(ld(e,r,o));throw new Error("toBatchTensor - at batchIdx "+t+", expected input to be instanceof tf.Tensor or instanceof HTMLCanvasElement, instead have "+e)});return kr(t.map(function(t){return t.toFloat()})).as4D(i.batchSize,r,r,3)})},vd);function vd(t,e){var o=this;if(void 0===e&&(e=!1),this._imageTensors=[],this._canvases=[],this._treatAsBatchInput=!1,this._inputDimensions=[],!Array.isArray(t))throw new Error("NetInput.constructor - expected inputs to be an Array of TResolvedNetInput or to be instanceof tf.Tensor4D, instead have "+t);this._treatAsBatchInput=e,this._batchSize=t.length,t.forEach(function(t,e){if(Jp(t))return o._imageTensors[e]=t,void(o._inputDimensions[e]=t.shape);if(Qp(t)){var n=t.shape[0];if(1!==n)throw new 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Error("toNetInput -"+o(e)+" tf.Tensor4D with batchSize "+n+" passed, but not supported in input array")}}),[4,Promise.all(e.map(function(t){return hd(t)&&nd(t)}))];case 1:return t.sent(),[2,new dd(e,Array.isArray(n))]}})})}var gd=(Object.defineProperty(yd.prototype,"params",{get:function(){return this._params},enumerable:!0,configurable:!0}),Object.defineProperty(yd.prototype,"paramMappings",{get:function(){return this._paramMappings},enumerable:!0,configurable:!0}),Object.defineProperty(yd.prototype,"isLoaded",{get:function(){return!!this.params},enumerable:!0,configurable:!0}),yd.prototype.getParamFromPath=function(t){var e=this.traversePropertyPath(t);return e.obj[e.objProp]},yd.prototype.reassignParamFromPath=function(t,e){var n=this.traversePropertyPath(t),r=n.obj,o=n.objProp;r[o].dispose(),r[o]=e},yd.prototype.getParamList=function(){var n=this;return this._paramMappings.map(function(t){var e=t.paramPath;return{path:e,tensor:n.getParamFromPath(e)}})},yd.prototype.getTrainableParams=function(){return this.getParamList().filter(function(t){return t.tensor instanceof wt})},yd.prototype.getFrozenParams=function(){return this.getParamList().filter(function(t){return!(t.tensor instanceof wt)})},yd.prototype.variable=function(){var r=this;this.getFrozenParams().forEach(function(t){var e=t.path,n=t.tensor;r.reassignParamFromPath(e,n.variable())})},yd.prototype.freeze=function(){var o=this;this.getTrainableParams().forEach(function(t){var e=t.path,n=t.tensor,r=wn(n.dataSync());n.dispose(),o.reassignParamFromPath(e,r)})},yd.prototype.dispose=function(e){void 0===e&&(e=!0),this.getParamList().forEach(function(t){if(e&&t.tensor.isDisposed)throw new Error("param tensor has already been disposed for path "+t.path);t.tensor.dispose()}),this._params=void 0},yd.prototype.serializeParams=function(){return new Float32Array(this.getParamList().map(function(t){var e=t.tensor;return 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Promise.all(t.map(function(t){return e(t).then(function(t){return t.buffer})}))},a=tp.weightsLoaderFactory(i),c=(u=JSON).parse,[4,e(r)];case 1:return s=c.apply(u,[t.sent().toString()]),[4,a(s,o)];case 2:return l=t.sent(),this.loadFromWeightMap(l),[2]}})})},yd.prototype.loadFromWeightMap=function(t){var e=this.extractParamsFromWeigthMap(t),n=e.paramMappings,r=e.params;this._paramMappings=n,this._params=r},yd.prototype.extractWeights=function(t){var e=this.extractParams(t),n=e.paramMappings,r=e.params;this._paramMappings=n,this._params=r},yd.prototype.traversePropertyPath=function(n){if(!this.params)throw new Error("traversePropertyPath - model has no loaded params");var t=n.split("/").reduce(function(t,e){if(!t.nextObj.hasOwnProperty(e))throw new Error("traversePropertyPath - object does not have property "+e+", for path "+n);return{obj:t.nextObj,objProp:e,nextObj:t.nextObj[e]}},{nextObj:this.params}),e=t.obj,r=t.objProp;if(!(e&&r&&e[r]instanceof yt))throw new Error("traversePropertyPath - parameter is not a tensor, for path "+n);return{obj:e,objProp:r}},yd);function yd(t){this._name=t,this._params=void 0,this._paramMappings=[]}function xd(t,e,n){void 0===n&&(n=!0);var r=Math.max(0,Math.min(t.right,e.right)-Math.max(t.left,e.left))*Math.max(0,Math.min(t.bottom,e.bottom)-Math.max(t.top,e.top));return n?r/(t.area+e.area-r):r/Math.min(t.area,e.area)}function bd(s,t,u,c){void 0===c&&(c=!0);for(var l=t.map(function(t,e){return{score:t,boxIndex:e}}).sort(function(t,e){return t.score-e.score}).map(function(t){return t.boxIndex}),h=[],e=function(){var t=l.pop();h.push(t);for(var e=l,n=[],r=0;r<e.length;r++){var o=e[r],i=s[t],a=s[o];n.push(xd(i,a,c))}l=l.filter(function(t,e){return n[e]<=u})};0<l.length;)e();return h}function wd(s,u){return Qe(function(){var t=u[0],e=u[1],n=u[2],r=Dn(l(s.shape.slice(0,3),[1]),t),o=Dn(l(s.shape.slice(0,3),[1]),e),i=Dn(l(s.shape.slice(0,3),[1]),n),a=Bn([r,o,i],3);return Fu(s,a)})}function Cd(t){return 1/(1+Math.exp(-t))}var Ed,_d,Rd=function(t){return"number"==typeof t};function Id(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(!Rd(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 Rd(t.x)&&Rd(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(Rd)))throw new Error("config.meanRgb has to be an array of shape [number, number, number], have: "+JSON.stringify(t.meanRgb))}function Sd(e){return Qe(function(){var t=Su(e,En(.10000000149011612));return du(qc(Fu(e,t)),t)})}function kd(e,n){return Qe(function(){var t=mr(e,[[0,0],[1,1],[1,1],[0,0]]);return t=rc(t,n.conv.filters,[1,1],"valid"),t=Fu(t,n.bn.sub),t=Su(t,n.bn.truediv),Sd(t=du(t,n.conv.bias))})}function Nd(e,n){return Qe(function(){var t=mr(e,[[0,0],[1,1],[1,1],[0,0]]);return t=uc(t,n.depthwise_filter,n.pointwise_filter,[1,1],"valid"),Sd(t=du(t,n.bias))})}function Ad(o,i){var r=$f(o,i);var t=Yf(o,i);return{extractConvParams:r,extractConvWithBatchNormParams:function(t,e,n){return{conv:r(t,e,3,n+"/conv"),bn:function(t,e){var n=_n(o(t)),r=_n(o(t));return i.push({paramPath:e+"/sub"},{paramPath:e+"/truediv"}),{sub:n,truediv:r}}(e,n+"/bn")}},extractSeparableConvParams:t}}function Td(t,e){var n=Qf(t,e);function r(t){return{filters:n(t+"/filters",4),bias:n(t+"/bias",1)}}return{extractConvParams:r,extractConvWithBatchNormParams:function(t){return{conv:r(t+"/conv"),bn:function(t){return{sub:n(t+"/sub",1),truediv:n(t+"/truediv",1)}}(t+"/bn")}},extractSeparableConvParams:Jf(n)}}(_d=Ed=Ed||{})[_d.XS=224]="XS",_d[_d.SM=320]="SM",_d[_d.MD=416]="MD",_d[_d.LG=608]="LG";var Dd=(Object.defineProperty(Fd.prototype,"inputSize",{get:function(){return this._inputSize},enumerable:!0,configurable:!0}),Object.defineProperty(Fd.prototype,"scoreThreshold",{get:function(){return this._scoreThreshold},enumerable:!0,configurable:!0}),Fd);function Fd(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")}var Md,Pd=(t(Od,Md=gd),Object.defineProperty(Od.prototype,"config",{get:function(){return this._config},enumerable:!0,configurable:!0}),Object.defineProperty(Od.prototype,"withClassScores",{get:function(){return this.config.withClassScores||1<this.config.classes.length},enumerable:!0,configurable:!0}),Object.defineProperty(Od.prototype,"boxEncodingSize",{get:function(){return 5+(this.withClassScores?this.config.classes.length:0)},enumerable:!0,configurable:!0}),Od.prototype.runTinyYolov2=function(t,e){var n=kd(t,e.conv0);return n=kd(n=wc(n,[2,2],[2,2],"same"),e.conv1),n=kd(n=wc(n,[2,2],[2,2],"same"),e.conv2),n=kd(n=wc(n,[2,2],[2,2],"same"),e.conv3),n=kd(n=wc(n,[2,2],[2,2],"same"),e.conv4),n=kd(n=wc(n,[2,2],[2,2],"same"),e.conv5),jf(n=kd(n=kd(n=wc(n,[2,2],[1,1],"same"),e.conv6),e.conv7),e.conv8,"valid",!1)},Od.prototype.runMobilenet=function(t,e){var n=this.config.isFirstLayerConv2d?Sd(jf(t,e.conv0,"valid",!1)):Nd(t,e.conv0);return n=Nd(n=wc(n,[2,2],[2,2],"same"),e.conv1),n=Nd(n=wc(n,[2,2],[2,2],"same"),e.conv2),n=Nd(n=wc(n,[2,2],[2,2],"same"),e.conv3),n=Nd(n=wc(n,[2,2],[2,2],"same"),e.conv4),n=Nd(n=wc(n,[2,2],[2,2],"same"),e.conv5),n=wc(n,[2,2],[1,1],"same"),n=e.conv6?Nd(n,e.conv6):n,jf(n=e.conv7?Nd(n,e.conv7):n,e.conv8,"valid",!1)},Od.prototype.forwardInput=function(e,n){var r=this,o=this.params;if(!o)throw new Error("TinyYolov2 - load model before inference");return Qe(function(){var t=e.toBatchTensor(n,!1).toFloat();return t=(t=r.config.meanRgb?wd(t,r.config.meanRgb):t).div(En(256)),r.config.withSeparableConvs?r.runMobilenet(t,o):r.runTinyYolov2(t,o)})},Od.prototype.forward=function(n,r){return p(this,void 0,void 0,function(){var e;return P(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,md(n)];case 1:return[4,e.apply(this,[t.sent(),r])];case 2:return[2,t.sent()]}})})},Od.prototype.detect=function(d,v){return void 0===v&&(v={}),p(this,void 0,void 0,function(){var e,n,r,o,i,a,s,u,c,l,h,p,f=this;return P(this,function(t){switch(t.label){case 0:return e=new Dd(v),n=e.inputSize,r=e.scoreThreshold,[4,md(d)];case 1:return o=t.sent(),[4,this.forwardInput(o,n)];case 2:return i=t.sent(),a=Qe(function(){return Tr(i)[0].expandDims()}),s={width:o.getInputWidth(0),height:o.getInputHeight(0)},[4,this.extractBoxes(a,o.getReshapedInputDimensions(0),r)];case 3:return u=t.sent(),i.dispose(),a.dispose(),c=u.map(function(t){return t.box}),l=u.map(function(t){return t.score}),h=u.map(function(t){return t.classScore}),p=u.map(function(t){return f.config.classes[t.label]}),[2,bd(c.map(function(t){return t.rescale(n)}),l,this.config.iouThreshold,!0).map(function(t){return new gf(l[t],h[t],p[t],c[t],s)})]}})})},Od.prototype.getDefaultModelName=function(){return""},Od.prototype.extractParamsFromWeigthMap=function(t){return function(t,e){var n,r=[],o=Td(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 qf(t,r),{params:n,paramMappings:r}}(t,this.config)},Od.prototype.extractParams=function(t){var e=this.config.filterSizes||Od.DEFAULT_FILTER_SIZES,n=e?e.length:void 0;if(7!==n&&8!==n&&9!==n)throw new Error("TinyYolov2 - expected 7 | 8 | 9 convolutional filters, but found "+n+" filterSizes in config");return function(t,e,n,r){var o,i=Zf(t),a=i.extractWeights,s=i.getRemainingWeights,u=[],c=Ad(a,u),l=c.extractConvParams,h=c.extractConvWithBatchNormParams,p=c.extractSeparableConvParams;if(e.withSeparableConvs){var f=r[0],d=r[1],v=r[2],m=r[3],g=r[4],y=r[5],x=r[6],b=r[7],w=r[8];o={conv0:e.isFirstLayerConv2d?l(f,d,3,"conv0"):p(f,d,"conv0"),conv1:p(d,v,"conv1"),conv2:p(v,m,"conv2"),conv3:p(m,g,"conv3"),conv4:p(g,y,"conv4"),conv5:p(y,x,"conv5"),conv6: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],v=r[2],m=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,v,"conv1"),conv2:h(v,m,"conv2"),conv3:h(m,g,"conv3"),conv4:h(g,y,"conv4"),conv5:h(y,x,"conv5"),conv6:h(x,b,"conv6"),conv7:h(b,w,"conv7"),conv8:l(w,5*n,1,"conv8")};if(0!==s().length)throw new Error("weights remaing after extract: "+s().length);return{params:o,paramMappings:u}}(t,this.config,this.boxEncodingSize,e)},Od.prototype.extractBoxes=function(T,D,F){return p(this,void 0,void 0,function(){var e,n,r,o,i,a,s,u,c,l,h,p,f,d,v,m,g,y,x,b,w,C,E,_,R,I,S,k,N,A=this;return P(this,function(t){switch(t.label){case 0:return e=D.width,n=D.height,r=Math.max(e,n),o=r/e,i=r/n,a=T.shape[1],s=this.config.anchors.length,u=Qe(function(){var t=T.reshape([a,a,s,A.boxEncodingSize]);return[t.slice([0,0,0,0],[a,a,s,4]),t.slice([0,0,0,4],[a,a,s,1]),A.withClassScores?Xr(t.slice([0,0,0,5],[a,a,s,A.config.classes.length]),3):En(0)]}),c=u[0],l=u[1],h=u[2],p=[],[4,l.array()];case 1:return f=t.sent(),[4,c.array()];case 2:d=t.sent(),v=0,t.label=3;case 3:if(!(v<a))return[3,12];m=0,t.label=4;case 4:if(!(m<a))return[3,11];g=0,t.label=5;case 5:return g<s?(y=Cd(f[v][m][g][0]),!F||F<y?(x=(m+Cd(d[v][m][g][0]))/a*o,b=(v+Cd(d[v][m][g][1]))/a*i,w=Math.exp(d[v][m][g][2])*this.config.anchors[g].x/a*o,C=Math.exp(d[v][m][g][3])*this.config.anchors[g].y/a*i,E=x-w/2,_=b-C/2,R={row:v,col:m,anchor:g},this.withClassScores?[4,this.extractPredictedClass(h,R)]:[3,7]):[3,9]):[3,10];case 6:return N=t.sent(),[3,8];case 7:N={classScore:1,label:0},t.label=8;case 8:S=(I=N).classScore,k=I.label,p.push(M({box:new pf(E,_,E+w,_+C),score:y,classScore:y*S,label:k},R)),t.label=9;case 9:return g++,[3,5];case 10:return m++,[3,4];case 11:return v++,[3,3];case 12:return c.dispose(),l.dispose(),h.dispose(),[2,p]}})})},Od.prototype.extractPredictedClass=function(e,a){return p(this,void 0,void 0,function(){var n,r,o,i;return P(this,function(t){switch(t.label){case 0:return n=a.row,r=a.col,o=a.anchor,[4,e.array()];case 1:return i=t.sent(),[2,Array(this.config.classes.length).fill(0).map(function(t,e){return i[n][r][o][e]}).map(function(t,e){return{classScore:t,label:e}}).reduce(function(t,e){return t.classScore>e.classScore?t:e})]}})})},Od.DEFAULT_FILTER_SIZES=[3,16,32,64,128,256,512,1024,1024],Od);function Od(t){var e=Md.call(this,"TinyYolov2")||this;return Id(t),e._config=t,e}var Bd=Object.freeze({convLayer:jf,disposeUnusedWeightTensors:qf,extractConvParamsFactory:$f,extractFCParamsFactory:Kf,extractSeparableConvParamsFactory:Yf,loadSeparableConvParamsFactory:Jf,extractWeightEntryFactory:Qf,extractWeightsFactory:Zf,getModelUris:td,SeparableConvParams:Xf,TinyYolov2:Pd,get TinyYolov2SizeType(){return Ed},TinyYolov2Options:Dd,validateConfig:Id});function Ld(i,a,t){if(void 0===t&&(t=!1),i.beginPath(),a.slice(1).forEach(function(t,e){var n=t.x,r=t.y,o=a[e];i.moveTo(o.x,o.y),i.lineTo(n,r)}),t){var e=a[a.length-1],n=a[0];if(!e||!n)return;i.moveTo(e.x,e.y),i.lineTo(n.x,n.y)}i.stroke()}var Wd,zd=(t(Ud,Wd=gf),Ud.prototype.forSize=function(t,e){var n=Wd.prototype.forSize.call(this,t,e);return new Ud(n.score,n.relativeBox,n.imageDims)},Ud);function Ud(t,e,n){return Wd.call(this,t,t,"",e,n)||this}function Vd(t){return t.detection instanceof zd}function Gd(t,e){var n={detection:e};return Object.assign({},t,n)}function Hd(e,n,r){return Qe(function(){var t=uc(e,n.depthwise_filter,n.pointwise_filter,r,"same");return t=du(t,n.bias)})}function jd(r,o,i){return void 0===i&&(i=!1),Qe(function(){var t=qc(i?du(rc(r,o.conv0.filters,[2,2],"same"),o.conv0.bias):Hd(r,o.conv0,[2,2])),e=Hd(t,o.conv1,[1,1]),n=Hd(qc(du(t,e)),o.conv2,[1,1]);return qc(du(t,du(e,n)))})}function qd(o,i,a,s){return void 0===a&&(a=!1),void 0===s&&(s=!0),Qe(function(){var t=qc(a?du(rc(o,i.conv0.filters,s?[2,2]:[1,1],"same"),i.conv0.bias):Hd(o,i.conv0,s?[2,2]:[1,1])),e=Hd(t,i.conv1,[1,1]),n=Hd(qc(du(t,e)),i.conv2,[1,1]),r=Hd(qc(du(t,du(e,n))),i.conv3,[1,1]);return qc(du(t,du(e,du(n,r))))})}function $d(t,e){var o=$f(t,e),i=Yf(t,e);function a(t,e,n,r){return void 0===r&&(r=!1),{conv0:r?o(t,e,3,n+"/conv0"):i(t,e,n+"/conv0"),conv1:i(e,e,n+"/conv1"),conv2:i(e,e,n+"/conv2")}}return{extractDenseBlock3Params:a,extractDenseBlock4Params:function(t,e,n,r){void 0===r&&(r=!1);var o=a(t,e,n,r);return{conv0:o.conv0,conv1:o.conv1,conv2:o.conv2,conv3:i(e,e,n+"/conv3")}}}}function Kd(e){return function(t){return{filters:e(t+"/filters",4),bias:e(t+"/bias",1)}}}function Xd(t,e){var n=Qf(t,e),r=Kd(n),o=Jf(n);return{extractDenseBlock3Params:function(t,e){return void 0===e&&(e=!1),{conv0:e?r(t+"/conv0"):o(t+"/conv0"),conv1:o(t+"/conv1"),conv2:o(t+"/conv2")}},extractDenseBlock4Params:function(t,e){return void 0===e&&(e=!1),{conv0:e?r(t+"/conv0"):o(t+"/conv0"),conv1:o(t+"/conv1"),conv2:o(t+"/conv2"),conv3:o(t+"/conv3")}}}}var Yd,Jd=(t(Qd,Yd=gd),Qd.prototype.forwardInput=function(e){var n=this.params;if(!n)throw new Error("FaceFeatureExtractor - load model before inference");return Qe(function(){var t=qd(wd(e.toBatchTensor(112,!0),[122.782,117.001,104.298]).div(En(255)),n.dense0,!0);return t=qd(t=qd(t=qd(t,n.dense1),n.dense2),n.dense3),t=Cc(t,[7,7],[2,2],"valid")})},Qd.prototype.forward=function(n){return p(this,void 0,void 0,function(){var e;return P(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,md(n)];case 1:return[2,e.apply(this,[t.sent()])]}})})},Qd.prototype.getDefaultModelName=function(){return"face_feature_extractor_model"},Qd.prototype.extractParamsFromWeigthMap=function(t){return function(t){var e=[],n=Xd(t,e).extractDenseBlock4Params,r={dense0:n("dense0",!0),dense1:n("dense1"),dense2:n("dense2"),dense3:n("dense3")};return qf(t,e),{params:r,paramMappings:e}}(t)},Qd.prototype.extractParams=function(t){return function(t){var e=[],n=Zf(t),r=n.extractWeights,o=n.getRemainingWeights,i=$d(r,e).extractDenseBlock4Params,a=i(3,32,"dense0",!0),s=i(32,64,"dense1"),u=i(64,128,"dense2"),c=i(128,256,"dense3");if(0!==o().length)throw new Error("weights remaing after extract: "+o().length);return{paramMappings:e,params:{dense0:a,dense1:s,dense2:u,dense3:c}}}(t)},Qd);function Qd(){return Yd.call(this,"FaceFeatureExtractor")||this}function Zd(t,e){return Qe(function(){return du(hc(t,e.weights),e.bias)})}function tv(e){var n={},r={};return Object.keys(e).forEach(function(t){(t.startsWith("fc")?r:n)[t]=e[t]}),{featureExtractorMap:n,classifierMap:r}}var ev,nv=(t(rv,ev=gd),Object.defineProperty(rv.prototype,"faceFeatureExtractor",{get:function(){return this._faceFeatureExtractor},enumerable:!0,configurable:!0}),rv.prototype.runNet=function(e){var n=this,r=this.params;if(!r)throw new Error(this._name+" - load model before inference");return Qe(function(){var t=e instanceof dd?n.faceFeatureExtractor.forwardInput(e):e;return Zd(t.as2D(t.shape[0],-1),r.fc)})},rv.prototype.dispose=function(t){void 0===t&&(t=!0),this.faceFeatureExtractor.dispose(t),ev.prototype.dispose.call(this,t)},rv.prototype.loadClassifierParams=function(t){var e=this.extractClassifierParams(t),n=e.params,r=e.paramMappings;this._params=n,this._paramMappings=r},rv.prototype.extractClassifierParams=function(t){return function(t,e,n){var r=[],o=Zf(t),i=o.extractWeights,a=o.getRemainingWeights,s=Kf(i,r)(e,n,"fc");if(0!==a().length)throw new Error("weights remaing after extract: "+a().length);return{paramMappings:r,params:{fc:s}}}(t,this.getClassifierChannelsIn(),this.getClassifierChannelsOut())},rv.prototype.extractParamsFromWeigthMap=function(t){var e=tv(t),n=e.featureExtractorMap,r=e.classifierMap;return this.faceFeatureExtractor.loadFromWeightMap(n),function(t){var e,n=[],r=Qf(t,n),o={fc:(e="fc",{weights:r(e+"/weights",2),bias:r(e+"/bias",1)})};return qf(t,n),{params:o,paramMappings:n}}(r)},rv.prototype.extractParams=function(t){var e=this.getClassifierChannelsIn(),n=this.getClassifierChannelsOut(),r=n*e+n,o=t.slice(0,t.length-r),i=t.slice(t.length-r);return this.faceFeatureExtractor.extractWeights(o),this.extractClassifierParams(i)},rv);function rv(t,e){var n=ev.call(this,t)||this;return n._faceFeatureExtractor=e,n}var ov=["neutral","happy","sad","angry","fearful","disgusted","surprised"],iv=(av.prototype.asSortedArray=function(){var e=this;return ov.map(function(t){return{expression:t,probability:e[t]}}).sort(function(t,e){return e.probability-t.probability})},av);function av(n){var r=this;if(7!==n.length)throw new Error("FaceExpressions.constructor - expected probabilities.length to be 7, have: "+n.length);ov.forEach(function(t,e){r[t]=n[e]})}var sv,uv=(t(cv,sv=nv),cv.prototype.forwardInput=function(t){var e=this;return Qe(function(){return Xr(e.runNet(t))})},cv.prototype.forward=function(n){return p(this,void 0,void 0,function(){var e;return P(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,md(n)];case 1:return[2,e.apply(this,[t.sent()])]}})})},cv.prototype.predictExpressions=function(a){return p(this,void 0,void 0,function(){var e,n,r,o,i=this;return P(this,function(t){switch(t.label){case 0:return[4,md(a)];case 1:return e=t.sent(),[4,this.forwardInput(e)];case 2:return n=t.sent(),[4,Promise.all(Tr(n).map(function(n){return p(i,void 0,void 0,function(){var e;return P(this,function(t){switch(t.label){case 0:return[4,n.data()];case 1:return e=t.sent(),n.dispose(),[2,e]}})})}))];case 3:return r=t.sent(),n.dispose(),o=r.map(function(t){return new iv(t)}),[2,e.isBatchInput?o:o[0]]}})})},cv.prototype.getDefaultModelName=function(){return"face_expression_model"},cv.prototype.getClassifierChannelsIn=function(){return 256},cv.prototype.getClassifierChannelsOut=function(){return 7},cv);function cv(t){return void 0===t&&(t=new Jd),sv.call(this,"FaceExpressionNet",t)||this}function lv(t){return t.expressions instanceof iv}function hv(t,e){var n={expressions:e};return Object.assign({},t,n)}var pv=(Object.defineProperty(fv.prototype,"shift",{get:function(){return new $p(this._shift.x,this._shift.y)},enumerable:!0,configurable:!0}),Object.defineProperty(fv.prototype,"imageWidth",{get:function(){return this._imgDims.width},enumerable:!0,configurable:!0}),Object.defineProperty(fv.prototype,"imageHeight",{get:function(){return this._imgDims.height},enumerable:!0,configurable:!0}),Object.defineProperty(fv.prototype,"positions",{get:function(){return this._positions},enumerable:!0,configurable:!0}),Object.defineProperty(fv.prototype,"relativePositions",{get:function(){var e=this;return this._positions.map(function(t){return t.sub(e._shift).div(new $p(e.imageWidth,e.imageHeight))})},enumerable:!0,configurable:!0}),fv.prototype.forSize=function(t,e){return new this.constructor(this.relativePositions,{width:t,height:e})},fv.prototype.shiftBy=function(t,e){return new this.constructor(this.relativePositions,this._imgDims,new $p(t,e))},fv.prototype.shiftByPoint=function(t){return this.shiftBy(t.x,t.y)},fv.prototype.align=function(t,e){if(void 0===e&&(e={}),t){var n=t instanceof zd?t.box.floor():new cf(t);return this.shiftBy(n.x,n.y).align(null,e)}var r=Object.assign({},{useDlibAlignment:!1,minBoxPadding:.2},e),o=r.useDlibAlignment,i=r.minBoxPadding;return o?this.alignDlib():this.alignMinBbox(i)},fv.prototype.alignDlib=function(){function t(t){return o.sub(t).magnitude()}var e=this.getRefPointsForAlignment(),n=e[0],r=e[1],o=e[2],i=(t(n)+t(r))/2,a=Math.floor(i/.45),s=of(e),u=Math.floor(Math.max(0,s.x-.5*a)),c=Math.floor(Math.max(0,s.y-.43*a));return new _f(u,c,Math.min(a,this.imageWidth+u),Math.min(a,this.imageHeight+c))},fv.prototype.alignMinBbox=function(t){var e=function(t){var e=t.map(function(t){return t.x}),n=t.map(function(t){return t.y}),r=e.reduce(function(t,e){return e<t?e:t},1/0),o=n.reduce(function(t,e){return e<t?e:t},1/0),i=e.reduce(function(t,e){return t<e?e:t},0),a=n.reduce(function(t,e){return t<e?e:t},0);return new pf(r,o,i,a)}(this.positions);return e.pad(e.width*t,e.height*t)},fv.prototype.getRefPointsForAlignment=function(){throw new Error("getRefPointsForAlignment not implemented by base class")},fv);function fv(t,e,n){void 0===n&&(n=new $p(0,0));var r=e.width,o=e.height;this._imgDims=new jp(r,o),this._shift=n,this._positions=t.map(function(t){return t.mul(new $p(r,o)).add(n)})}var dv,vv=(t(mv,dv=pv),mv.prototype.getJawOutline=function(){return this.positions.slice(0,17)},mv.prototype.getLeftEyeBrow=function(){return this.positions.slice(17,22)},mv.prototype.getRightEyeBrow=function(){return this.positions.slice(22,27)},mv.prototype.getNose=function(){return this.positions.slice(27,36)},mv.prototype.getLeftEye=function(){return this.positions.slice(36,42)},mv.prototype.getRightEye=function(){return this.positions.slice(42,48)},mv.prototype.getMouth=function(){return this.positions.slice(48,68)},mv.prototype.getRefPointsForAlignment=function(){return[this.getLeftEye(),this.getRightEye(),this.getMouth()].map(of)},mv);function mv(){return null!==dv&&dv.apply(this,arguments)||this}function gv(t){return Vd(t)&&t.landmarks instanceof pv&&t.unshiftedLandmarks instanceof pv&&t.alignedRect instanceof zd}function yv(t,e){var n=t.detection.box,r=e.shiftBy(n.x,n.y),o=r.align(),i=t.detection.imageDims,a={landmarks:r,unshiftedLandmarks:e,alignedRect:new zd(t.detection.score,o.rescale(i.reverse()),i)};return Object.assign({},t,a)}var xv=function(t){void 0===t&&(t={});var e=t.drawLines,n=void 0===e||e,r=t.drawPoints,o=void 0===r||r,i=t.lineWidth,a=t.lineColor,s=t.pointSize,u=t.pointColor;this.drawLines=n,this.drawPoints=o,this.lineWidth=i||1,this.pointSize=s||2,this.lineColor=a||"rgba(0, 255, 255, 1)",this.pointColor=u||"rgba(255, 0, 255, 1)"},bv=(wv.prototype.draw=function(t){var e=Bf(t),n=this.options,r=n.drawLines,o=n.drawPoints,i=n.lineWidth,a=n.lineColor,s=n.pointSize,u=n.pointColor;r&&this.faceLandmarks instanceof vv&&(e.strokeStyle=a,e.lineWidth=i,Ld(e,this.faceLandmarks.getJawOutline()),Ld(e,this.faceLandmarks.getLeftEyeBrow()),Ld(e,this.faceLandmarks.getRightEyeBrow()),Ld(e,this.faceLandmarks.getNose()),Ld(e,this.faceLandmarks.getLeftEye(),!0),Ld(e,this.faceLandmarks.getRightEye(),!0),Ld(e,this.faceLandmarks.getMouth(),!0)),o&&(e.strokeStyle=u,e.fillStyle=u,this.faceLandmarks.positions.forEach(function(t){e.beginPath(),e.arc(t.x,t.y,s,0,2*Math.PI),e.fill()}))},wv);function wv(t,e){void 0===e&&(e={}),this.faceLandmarks=t,this.options=new xv(e)}var Cv=Object.freeze({drawContour:Ld,drawDetections:function(o,t){(Array.isArray(t)?t:[t]).forEach(function(t){var e=t instanceof zd?t.score:Vd(t)?t.detection.score:void 0,n=t instanceof zd?t.box:Vd(t)?t.detection.box:new cf(t),r=e?""+ef(e):void 0;new Vf(n,{label:r}).draw(o)})},drawFaceExpressions:function(o,t,i,a){void 0===i&&(i=.1),(Array.isArray(t)?t:[t]).forEach(function(t){var e=t instanceof iv?t:lv(t)?t.expressions:void 0;if(!e)throw new Error("drawFaceExpressions - expected faceExpressions to be FaceExpressions | WithFaceExpressions<{}> or array thereof");var n=e.asSortedArray().filter(function(t){return t.probability>i}),r=Vd(t)?t.detection.box.bottomLeft:a||new $p(0,0);new Wf(n.map(function(t){return t.expression+" ("+ef(t.probability)+")"}),r).draw(o)})},DrawFaceLandmarksOptions:xv,DrawFaceLandmarks:bv,drawFaceLandmarks:function(n,t){(Array.isArray(t)?t:[t]).forEach(function(t){var e=t instanceof pv?t:gv(t)?t.landmarks:void 0;if(!e)throw new Error("drawFaceLandmarks - expected faceExpressions to be FaceLandmarks | WithFaceLandmarks<WithFaceDetection<{}>> or array thereof");new bv(e).draw(n)})}});function Ev(t,e){var n=[],r=Zf(t),o=r.extractWeights,i=r.getRemainingWeights,a=function(t,e){var r=$f(t,e),o=Yf(t,e);return{extractConvParams:r,extractSeparableConvParams:o,extractReductionBlockParams:function(t,e,n){return{separable_conv0:o(t,e,n+"/separable_conv0"),separable_conv1:o(e,e,n+"/separable_conv1"),expansion_conv:r(t,e,1,n+"/expansion_conv")}},extractMainBlockParams:function(t,e){return{separable_conv0:o(t,t,e+"/separable_conv0"),separable_conv1:o(t,t,e+"/separable_conv1"),separable_conv2:o(t,t,e+"/separable_conv2")}}}}(o,n),s=a.extractConvParams,u=a.extractSeparableConvParams,c=a.extractReductionBlockParams,l=a.extractMainBlockParams,h={conv_in:s(3,32,3,"entry_flow/conv_in"),reduction_block_0:c(32,64,"entry_flow/reduction_block_0"),reduction_block_1:c(64,128,"entry_flow/reduction_block_1")},p={};af(e,0,1).forEach(function(t){p["main_block_"+t]=l(128,"middle_flow/main_block_"+t)});var f={reduction_block:c(128,256,"exit_flow/reduction_block"),separable_conv:u(256,512,"exit_flow/separable_conv")};if(0!==i().length)throw new Error("weights remaing after extract: "+i().length);return{paramMappings:n,params:{entry_flow:h,middle_flow:p,exit_flow:f}}}function _v(t,e){var n=[],r=function(t,e){var n=Qf(t,e),r=Kd(n),o=Jf(n);return{extractConvParams:r,extractSeparableConvParams:o,extractReductionBlockParams:function(t){return{separable_conv0:o(t+"/separable_conv0"),separable_conv1:o(t+"/separable_conv1"),expansion_conv:r(t+"/expansion_conv")}},extractMainBlockParams:function(t){return{separable_conv0:o(t+"/separable_conv0"),separable_conv1:o(t+"/separable_conv1"),separable_conv2:o(t+"/separable_conv2")}}}}(t,n),o=r.extractConvParams,i=r.extractSeparableConvParams,a=r.extractReductionBlockParams,s=r.extractMainBlockParams,u={conv_in:o("entry_flow/conv_in"),reduction_block_0:a("entry_flow/reduction_block_0"),reduction_block_1:a("entry_flow/reduction_block_1")},c={};af(e,0,1).forEach(function(t){c["main_block_"+t]=s("middle_flow/main_block_"+t)});var l={reduction_block:a("exit_flow/reduction_block"),separable_conv:i("exit_flow/separable_conv")};return qf(t,n),{params:{entry_flow:u,middle_flow:c,exit_flow:l},paramMappings:n}}function Rv(t,e,n){return du(rc(t,e.filters,n,"same"),e.bias)}function Iv(t,e,n){void 0===n&&(n=!0);var r=n?qc(t):t;return r=Hd(r,e.separable_conv0,[1,1]),r=Hd(qc(r),e.separable_conv1,[1,1]),r=wc(r,[3,3],[2,2],"same"),r=du(r,Rv(t,e.expansion_conv,[2,2]))}var Sv,kv,Nv=(t(Av,Sv=gd),Av.prototype.forwardInput=function(n){var r=this,o=this.params;if(!o)throw new Error("TinyXception - load model before inference");return Qe(function(){var t=wd(n.toBatchTensor(112,!0),[122.782,117.001,104.298]).div(En(256)),e=qc(Rv(t,o.entry_flow.conv_in,[2,2]));return e=Iv(e=Iv(e,o.entry_flow.reduction_block_0,!1),o.entry_flow.reduction_block_1),af(r._numMainBlocks,0,1).forEach(function(t){e=function(t,e){var n=Hd(qc(t),e.separable_conv0,[1,1]);return n=Hd(qc(n),e.separable_conv1,[1,1]),n=Hd(qc(n),e.separable_conv2,[1,1]),n=du(n,t)}(e,o.middle_flow["main_block_"+t])}),e=Iv(e,o.exit_flow.reduction_block),e=qc(Hd(e,o.exit_flow.separable_conv,[1,1]))})},Av.prototype.forward=function(n){return p(this,void 0,void 0,function(){var e;return P(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,md(n)];case 1:return[2,e.apply(this,[t.sent()])]}})})},Av.prototype.getDefaultModelName=function(){return"tiny_xception_model"},Av.prototype.extractParamsFromWeigthMap=function(t){return _v(t,this._numMainBlocks)},Av.prototype.extractParams=function(t){return Ev(t,this._numMainBlocks)},Av);function Av(t){var e=Sv.call(this,"TinyXception")||this;return e._numMainBlocks=t,e}(kv=c.Gender||(c.Gender={})).FEMALE="female",kv.MALE="male";var Tv,Dv=(t(Fv,Tv=gd),Object.defineProperty(Fv.prototype,"faceFeatureExtractor",{get:function(){return this._faceFeatureExtractor},enumerable:!0,configurable:!0}),Fv.prototype.runNet=function(n){var r=this,o=this.params;if(!o)throw new Error(this._name+" - load model before inference");return Qe(function(){var t=n instanceof dd?r.faceFeatureExtractor.forwardInput(n):n,e=Cc(t,[7,7],[2,2],"valid").as2D(t.shape[0],-1);return{age:Zd(e,o.fc.age).as1D(),gender:Zd(e,o.fc.gender)}})},Fv.prototype.forwardInput=function(r){var o=this;return Qe(function(){var t=o.runNet(r),e=t.age,n=t.gender;return{age:e,gender:Xr(n)}})},Fv.prototype.forward=function(n){return p(this,void 0,void 0,function(){var e;return P(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,md(n)];case 1:return[2,e.apply(this,[t.sent()])]}})})},Fv.prototype.predictAgeAndGender=function(s){return p(this,void 0,void 0,function(){var e,n,r,o,i,a,u=this;return P(this,function(t){switch(t.label){case 0:return[4,md(s)];case 1:return e=t.sent(),[4,this.forwardInput(e)];case 2:return n=t.sent(),r=Tr(n.age),o=Tr(n.gender),i=r.map(function(t,e){return{ageTensor:t,genderTensor:o[e]}}),[4,Promise.all(i.map(function(t){var a=t.ageTensor,s=t.genderTensor;return p(u,void 0,void 0,function(){var e,n,r,o,i;return P(this,function(t){switch(t.label){case 0:return[4,a.data()];case 1:return e=t.sent()[0],[4,s.data()];case 2:return n=t.sent()[0],o=(r=.5<n)?c.Gender.MALE:c.Gender.FEMALE,i=r?n:1-n,a.dispose(),s.dispose(),[2,{age:e,gender:o,genderProbability:i}]}})})}))];case 3:return a=t.sent(),n.age.dispose(),n.gender.dispose(),[2,e.isBatchInput?a:a[0]]}})})},Fv.prototype.getDefaultModelName=function(){return"age_gender_model"},Fv.prototype.dispose=function(t){void 0===t&&(t=!0),this.faceFeatureExtractor.dispose(t),Tv.prototype.dispose.call(this,t)},Fv.prototype.loadClassifierParams=function(t){var e=this.extractClassifierParams(t),n=e.params,r=e.paramMappings;this._params=n,this._paramMappings=r},Fv.prototype.extractClassifierParams=function(t){return function(t){var e=[],n=Zf(t),r=n.extractWeights,o=n.getRemainingWeights,i=Kf(r,e),a=i(512,1,"fc/age"),s=i(512,2,"fc/gender");if(0!==o().length)throw new Error("weights remaing after extract: "+o().length);return{paramMappings:e,params:{fc:{age:a,gender:s}}}}(t)},Fv.prototype.extractParamsFromWeigthMap=function(t){var e=tv(t),n=e.featureExtractorMap,r=e.classifierMap;return this.faceFeatureExtractor.loadFromWeightMap(n),function(t){var e=[],n=Qf(t,e);function r(t){return{weights:n(t+"/weights",2),bias:n(t+"/bias",1)}}var o={fc:{age:r("fc/age"),gender:r("fc/gender")}};return qf(t,e),{params:o,paramMappings:e}}(r)},Fv.prototype.extractParams=function(t){var e=t.slice(0,t.length-1539),n=t.slice(t.length-1539);return this.faceFeatureExtractor.extractWeights(e),this.extractClassifierParams(n)},Fv);function Fv(t){void 0===t&&(t=new Nv(2));var e=Tv.call(this,"AgeGenderNet")||this;return e._faceFeatureExtractor=t,e}var Mv,Pv=(t(Ov,Mv=pv),Ov.prototype.getRefPointsForAlignment=function(){var t=this.positions;return[t[0],t[1],of([t[3],t[4]])]},Ov);function Ov(){return null!==Mv&&Mv.apply(this,arguments)||this}var Bv=(Object.defineProperty(Lv.prototype,"label",{get:function(){return this._label},enumerable:!0,configurable:!0}),Object.defineProperty(Lv.prototype,"distance",{get:function(){return this._distance},enumerable:!0,configurable:!0}),Lv.prototype.toString=function(t){return void 0===t&&(t=!0),this.label+(t?" ("+ef(this.distance)+")":"")},Lv);function Lv(t,e){this._label=t,this._distance=e}var Wv=(Object.defineProperty(zv.prototype,"label",{get:function(){return this._label},enumerable:!0,configurable:!0}),Object.defineProperty(zv.prototype,"descriptors",{get:function(){return this._descriptors},enumerable:!0,configurable:!0}),zv.prototype.toJSON=function(){return{label:this.label,descriptors:this.descriptors.map(function(t){return Array.from(t)})}},zv.fromJSON=function(t){var e=t.descriptors.map(function(t){return new Float32Array(t)});return new zv(t.label,e)},zv);function zv(t,e){if("string"!=typeof t)throw new Error("LabeledFaceDescriptors - constructor expected label to be a string");if(!Array.isArray(e)||e.some(function(t){return!(t instanceof Float32Array)}))throw new Error("LabeledFaceDescriptors - constructor expected descriptors to be an array of Float32Array");this._label=t,this._descriptors=e}function Uv(s,u){return p(this,void 0,void 0,function(){var e,n,r,o,i,a;return P(this,function(t){switch(t.label){case 0:return e=Pf.getEnv().Canvas,(n=s)instanceof e?[3,5]:[4,md(s)];case 1:if(1<(r=t.sent()).batchSize)throw new Error("extractFaces - batchSize > 1 not supported");return(o=r.getInput(0))instanceof e?(i=o,[3,4]):[3,2];case 2:return[4,cd(o)];case 3:i=t.sent(),t.label=4;case 4:n=i,t.label=5;case 5:return a=Bf(n),[2,u.map(function(t){return t instanceof zd?t.forSize(n.width,n.height).box.floor():t}).map(function(t){return t.clipAtImageBorders(n.width,n.height)}).map(function(t){var e=t.x,n=t.y,r=t.width,o=t.height,i=id({width:r,height:o});return Bf(i).putImageData(a.getImageData(e,n,r,o),0,0),i})]}})})}function Vv(u,e){return p(this,void 0,void 0,function(){return P(this,function(t){if(!Jp(u)&&!Qp(u))throw new Error("extractFaceTensors - expected image tensor to be 3D or 4D");if(Qp(u)&&1<u.shape[0])throw new Error("extractFaceTensors - batchSize > 1 not supported");return[2,Qe(function(){var t=u.shape.slice(Qp(u)?1:0),i=t[0],a=t[1],s=t[2];return e.map(function(t){return t instanceof zd?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 Nc(u.as3D(i,a,s),[n,e,0],[o,r,s])})})]})})}var Gv,Hv=(t(jv,Gv=nv),jv.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 Qe(function(){function n(t,e){return kr([Dn([68],t),Dn([68],e)],1).as2D(1,136).as1D()}function r(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(Dn([a,136],o)).sub(kr(Array.from(Array(a),function(t,e){return n(function(t){return r(t,function(t,e){return t<e})}(e),function(t){return r(t,function(t,e){return e<t})}(e))}))).div(kr(Array.from(Array(a),function(t,e){return n(i[e].width,i[e].height)})))})},jv.prototype.forwardInput=function(e){var n=this;return Qe(function(){var t=n.runNet(e);return n.postProcess(t,e.inputSize,e.inputDimensions.map(function(t){return{height:t[0],width:t[1]}}))})},jv.prototype.forward=function(n){return p(this,void 0,void 0,function(){var e;return P(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,md(n)];case 1:return[2,e.apply(this,[t.sent()])]}})})},jv.prototype.detectLandmarks=function(o){return p(this,void 0,void 0,function(){var u,e,n,r=this;return P(this,function(t){switch(t.label){case 0:return[4,md(o)];case 1:return u=t.sent(),e=Qe(function(){return Tr(r.forwardInput(u))}),[4,Promise.all(e.map(function(a,s){return p(r,void 0,void 0,function(){var e,n,r,o,i;return P(this,function(t){switch(t.label){case 0:return r=(n=Array).from,[4,a.data()];case 1:return e=r.apply(n,[t.sent()]),o=e.filter(function(t,e){return tf(e)}),i=e.filter(function(t,e){return!tf(e)}),[2,new vv(Array(68).fill(0).map(function(t,e){return new $p(o[e],i[e])}),{height:u.getInputHeight(s),width:u.getInputWidth(s)})]}})})}))];case 2:return n=t.sent(),e.forEach(function(t){return t.dispose()}),[2,u.isBatchInput?n:n[0]]}})})},jv.prototype.getClassifierChannelsOut=function(){return 136},jv);function jv(){return null!==Gv&&Gv.apply(this,arguments)||this}var qv,$v=(t(Kv,qv=Hv),Kv.prototype.getDefaultModelName=function(){return"face_landmark_68_model"},Kv.prototype.getClassifierChannelsIn=function(){return 256},Kv);function Kv(t){return void 0===t&&(t=new Jd),qv.call(this,"FaceLandmark68Net",t)||this}var Xv,Yv=(t(Jv,Xv=gd),Jv.prototype.forwardInput=function(e){var n=this.params;if(!n)throw new Error("TinyFaceFeatureExtractor - load model before inference");return Qe(function(){var t=jd(wd(e.toBatchTensor(112,!0),[122.782,117.001,104.298]).div(En(255)),n.dense0,!0);return t=jd(t=jd(t,n.dense1),n.dense2),t=Cc(t,[14,14],[2,2],"valid")})},Jv.prototype.forward=function(n){return p(this,void 0,void 0,function(){var e;return P(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,md(n)];case 1:return[2,e.apply(this,[t.sent()])]}})})},Jv.prototype.getDefaultModelName=function(){return"face_feature_extractor_tiny_model"},Jv.prototype.extractParamsFromWeigthMap=function(t){return function(t){var e=[],n=Xd(t,e).extractDenseBlock3Params,r={dense0:n("dense0",!0),dense1:n("dense1"),dense2:n("dense2")};return qf(t,e),{params:r,paramMappings:e}}(t)},Jv.prototype.extractParams=function(t){return function(t){var e=[],n=Zf(t),r=n.extractWeights,o=n.getRemainingWeights,i=$d(r,e).extractDenseBlock3Params,a=i(3,32,"dense0",!0),s=i(32,64,"dense1"),u=i(64,128,"dense2");if(0!==o().length)throw new Error("weights remaing after extract: "+o().length);return{paramMappings:e,params:{dense0:a,dense1:s,dense2:u}}}(t)},Jv);function Jv(){return Xv.call(this,"TinyFaceFeatureExtractor")||this}var Qv,Zv=(t(tm,Qv=Hv),tm.prototype.getDefaultModelName=function(){return"face_landmark_68_tiny_model"},tm.prototype.getClassifierChannelsIn=function(){return 128},tm);function tm(t){return void 0===t&&(t=new Yv),Qv.call(this,"FaceLandmark68TinyNet",t)||this}var em,nm=(t(rm,em=$v),rm);function rm(){return null!==em&&em.apply(this,arguments)||this}function om(t,e,n,r,o){void 0===o&&(o="same");var i=e.conv,a=i.filters,s=i.bias,u=rc(t,a,n,o);return u=function(t,e){return du(Su(t,e.weights),e.biases)}(u=du(u,s),e.scale),r?qc(u):u}function im(t,e){return om(t,e,[1,1],!1)}function am(t,e){return om(t,e,[2,2],!0,"valid")}function sm(a,s){function o(t,e,n,r){var o=function(t,e,n){var r=a(t),o=r.length/(e*n*n);if(Zp(o))throw new Error("depth has to be an integer: "+o+", weights.length: "+r.length+", numFilters: "+e+", filterSize: "+n);return Qe(function(){return Kc(Sn(r,[e,o,n,n]),[2,3,1,0])})}(t,e,n),i=_n(a(e));return s.push({paramPath:r+"/filters"},{paramPath:r+"/bias"}),{filters:o,bias:i}}function i(t,e,n,r){return{conv:o(t,e,n,r+"/conv"),scale:function(t,e){var n=_n(a(t)),r=_n(a(t));return s.push({paramPath:e+"/weights"},{paramPath:e+"/biases"}),{weights:n,biases:r}}(e,r+"/scale")}}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 um(t,e){var n=Qf(t,e);function r(t){return{conv:{filters:n(t+"/conv/filters",4),bias:n(t+"/conv/bias",1)},scale:function(t){return{weights:n(t+"/scale/weights",1),biases:n(t+"/scale/biases",1)}}(t)}}return{extractConvLayerParams:r,extractResidualLayerParams:function(t){return{conv1:r(t+"/conv1"),conv2:r(t+"/conv2")}}}}function cm(t,e){var n=function(t,e){return om(t,e,[1,1],!0)}(t,e.conv1);return n=im(n,e.conv2),n=du(n,t),n=qc(n)}function lm(t,e){var n=am(t,e.conv1);n=im(n,e.conv2);var r=Cc(t,2,2,"valid"),o=Tn(r.shape),i=r.shape[3]!==n.shape[3];if(r.shape[1]!==n.shape[1]||r.shape[2]!==n.shape[2]){var a=l(n.shape);a[1]=1;var s=Tn(a),u=l((n=Bn([n,s],1)).shape);u[2]=1;var c=Tn(u);n=Bn([n,c],2)}return r=i?Bn([r,o],3):r,n=du(r,n),n=qc(n)}var hm,pm=(t(fm,hm=gd),fm.prototype.forwardInput=function(n){var r=this.params;if(!r)throw new Error("FaceRecognitionNet - load model before inference");return Qe(function(){var t=am(wd(n.toBatchTensor(150,!0).toFloat(),[122.782,117.001,104.298]).div(En(256)),r.conv32_down),e=(t=lm(t=cm(t=cm(t=lm(t=cm(t=cm(t=lm(t=cm(t=cm(t=cm(t=lm(t=cm(t=cm(t=cm(t=wc(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 hc(e,r.fc)})},fm.prototype.forward=function(n){return p(this,void 0,void 0,function(){var e;return P(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,md(n)];case 1:return[2,e.apply(this,[t.sent()])]}})})},fm.prototype.computeFaceDescriptor=function(i){return p(this,void 0,void 0,function(){var e,n,r,o=this;return P(this,function(t){switch(t.label){case 0:return[4,md(i)];case 1:return e=t.sent(),n=Qe(function(){return Tr(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]]}})})},fm.prototype.getDefaultModelName=function(){return"face_recognition_model"},fm.prototype.extractParamsFromWeigthMap=function(t){return function(t){var e=[],n=um(t,e),r=n.extractConvLayerParams,o=n.extractResidualLayerParams,i=r("conv32_down"),a=o("conv32_1"),s=o("conv32_2"),u=o("conv32_3"),c=o("conv64_down"),l=o("conv64_1"),h=o("conv64_2"),p=o("conv64_3"),f=o("conv128_down"),d=o("conv128_1"),v=o("conv128_2"),m=o("conv256_down"),g=o("conv256_1"),y=o("conv256_2"),x=o("conv256_down_out"),b=t.fc;if(e.push({originalPath:"fc",paramPath:"fc"}),!Yp(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:v,conv256_down:m,conv256_1:g,conv256_2:y,conv256_down_out:x,fc:b};return qf(t,e),{params:w,paramMappings:e}}(t)},fm.prototype.extractParams=function(t){return function(t){var e=Zf(t),n=e.extractWeights,r=e.getRemainingWeights,o=[],i=sm(n,o),a=i.extractConvLayerParams,s=i.extractResidualLayerParams,u=a(4704,32,7,"conv32_down"),c=s(9216,32,3,"conv32_1"),l=s(9216,32,3,"conv32_2"),h=s(9216,32,3,"conv32_3"),p=s(36864,64,3,"conv64_down",!0),f=s(36864,64,3,"conv64_1"),d=s(36864,64,3,"conv64_2"),v=s(36864,64,3,"conv64_3"),m=s(147456,128,3,"conv128_down",!0),g=s(147456,128,3,"conv128_1"),y=s(147456,128,3,"conv128_2"),x=s(589824,256,3,"conv256_down",!0),b=s(589824,256,3,"conv256_1"),w=s(589824,256,3,"conv256_2"),C=s(589824,256,3,"conv256_down_out"),E=Qe(function(){return Kc(Rn(n(32768),[128,256]),[1,0])});if(o.push({paramPath:"fc"}),0!==r().length)throw new Error("weights remaing after extract: "+r().length);return{params:{conv32_down:u,conv32_1:c,conv32_2:l,conv32_3:h,conv64_down:p,conv64_1:f,conv64_2:d,conv64_3:v,conv128_down:m,conv128_1:g,conv128_2:y,conv256_down:x,conv256_1:b,conv256_2:w,conv256_down_out:C,fc:E},paramMappings:o}}(t)},fm);function fm(){return hm.call(this,"FaceRecognitionNet")||this}function dm(t,e){var n={descriptor:e};return Object.assign({},t,n)}function vm(t,e){var n={age:e};return Object.assign({},t,n)}function mm(t,e,n){var r={gender:e,genderProbability:n};return Object.assign({},t,r)}var gm=(Object.defineProperty(ym.prototype,"minFaceSize",{get:function(){return this._minFaceSize},enumerable:!0,configurable:!0}),Object.defineProperty(ym.prototype,"scaleFactor",{get:function(){return this._scaleFactor},enumerable:!0,configurable:!0}),Object.defineProperty(ym.prototype,"maxNumScales",{get:function(){return this._maxNumScales},enumerable:!0,configurable:!0}),Object.defineProperty(ym.prototype,"scoreThresholds",{get:function(){return this._scoreThresholds},enumerable:!0,configurable:!0}),Object.defineProperty(ym.prototype,"scaleSteps",{get:function(){return this._scaleSteps},enumerable:!0,configurable:!0}),ym);function ym(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")}function xm(s,u){function i(t,e,n,r,o){var i=Sn(s(t*e*n*n),[n,n,t,e]),a=_n(s(e));return u.push({paramPath:r+"/filters"},{paramPath:r+"/"+(o?"batch_norm_offset":"bias")}),{filters:i,bias:a}}function r(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){return{depthwise_conv:function(t,e){var n=Sn(s(9*t),[3,3,t,1]),r=_n(s(t)),o=_n(s(t)),i=_n(s(t)),a=_n(s(t));return u.push({paramPath:e+"/filters"},{paramPath:e+"/batch_norm_scale"},{paramPath:e+"/batch_norm_offset"},{paramPath:e+"/batch_norm_mean"},{paramPath:e+"/batch_norm_variance"}),{filters:n,batch_norm_scale:r,batch_norm_offset:o,batch_norm_mean:i,batch_norm_variance:a}}(t,n+"/depthwise_conv"),pointwise_conv:r(t,e,1,n+"/pointwise_conv")}}return{extractMobilenetV1Params:function(){return{conv_0:r(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:r(1024,256,1,"prediction_layer/conv_0"),conv_1:r(256,512,3,"prediction_layer/conv_1"),conv_2:r(512,128,1,"prediction_layer/conv_2"),conv_3:r(128,256,3,"prediction_layer/conv_3"),conv_4:r(256,128,1,"prediction_layer/conv_4"),conv_5:r(128,256,3,"prediction_layer/conv_5"),conv_6:r(256,64,1,"prediction_layer/conv_6"),conv_7:r(64,128,3,"prediction_layer/conv_7"),box_predictor_0:{box_encoding_predictor: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 bm(t){var e=[],n=function(t,e){var i=Qf(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"}),!Jp(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 qf(t,e),{params:a,paramMappings:e}}function wm(e,n,r){return Qe(function(){var t=rc(e,n.filters,r,"same");return t=du(t,n.batch_norm_offset),ws(t,0,6)})}var Cm=.0010000000474974513;function Em(t,e){return Qe(function(){var o=null,i=wm(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=e+1,r=function(e){return[2,4,6,12].some(function(t){return t===e})?[2,2]:[1,1]}(n);i=wm(i=function(e,n,r){return Qe(function(){var t=sc(e,n.filters,r,"same");return t=iu(t,n.batch_norm_mean,n.batch_norm_variance,n.batch_norm_offset,n.batch_norm_scale,Cm),ws(t,0,6)})}(i,t.depthwise_conv,r),t.pointwise_conv,[1,1]),11===n&&(o=i)}),null===o)throw new Error("mobileNetV1 - output of conv layer 11 is 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t=e.shape[0];return{boxPredictionEncoding:Rr(jf(e,n.box_encoding_predictor),[t,-1,1,4]),classPrediction:Rr(jf(e,n.class_predictor),[t,-1,3])}})}var Sm=(Object.defineProperty(km.prototype,"minConfidence",{get:function(){return this._minConfidence},enumerable:!0,configurable:!0}),Object.defineProperty(km.prototype,"maxResults",{get:function(){return this._maxResults},enumerable:!0,configurable:!0}),km);function km(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")}var Nm,Am=(t(Tm,Nm=gd),Tm.prototype.forwardInput=function(r){var o=this.params;if(!o)throw new Error("SsdMobilenetv1 - load model before inference");return 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o=s.apply(a,[t.sent()]),r.dispose(),u=o.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){var e=i[t].regions.arraySync();return new Xm(e[0][0],e[0][1],e[0][2],e[0][3])}),l=u.map(function(t,e){return g[t].calibrate(c[e])}),h=u.map(function(t){return o[t]}),p=[],f=[],d=[],0<l.length&&(e=Date.now(),v=bd(l,h,.7,!1),b.stage3_nms=Date.now()-e,p=v.map(function(t){return l[t]}),f=v.map(function(t){return h[t]}),d=v.map(function(r,o){return Array(5).fill(0).map(function(t,e){var n=i[r].points.arraySync();return new $p(n[0][e]*(p[o].width+1)+p[o].left,n[0][e+5]*(p[o].height+1)+p[o].top)})})),i.forEach(function(t){t.regions.dispose(),t.scores.dispose(),t.points.dispose()}),[2,{boxes:p,scores:f,points:d}]}})})}var og,ig=(t(ag,og=gd),ag.prototype.forwardInput=function(C,E){return void 0===E&&(E={}),p(this,void 0,void 0,function(){var e,n,r,o,i,a,s,u,c,l,h,p,f,d,v,m,g,y,x,b,w;return 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y=t.sent(),r.total_stage1=Date.now()-g,y.boxes.length?(r.stage2_numInputBoxes=y.boxes.length,g=Date.now(),[4,ng(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,rg(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 yv(Gd({},new zd(b.scores[t],new _f(e.left/c,e.top/u,e.width/c,e.height/u),{height:u,width:c})),new Pv(b.points[t].map(function(t){return t.sub(new $p(e.left,e.top)).div(new $p(e.width,e.height))}),{width:e.width,height:e.height}))}),[2,a({results:w,stats:r})]}})})},ag.prototype.forward=function(n,r){return void 0===r&&(r={}),p(this,void 0,void 0,function(){var e;return P(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,md(n)];case 1:return[4,e.apply(this,[t.sent(),r])];case 2:return[2,t.sent().results]}})})},ag.prototype.forwardWithStats=function(n,r){return void 0===r&&(r={}),p(this,void 0,void 0,function(){var e;return P(this,function(t){switch(t.label){case 0:return e=this.forwardInput,[4,md(n)];case 1:return[2,e.apply(this,[t.sent(),r])]}})})},ag.prototype.getDefaultModelName=function(){return"mtcnn_model"},ag.prototype.extractParamsFromWeigthMap=function(t){return qm(t)},ag.prototype.extractParams=function(t){return jm(t)},ag);function ag(){return og.call(this,"Mtcnn")||this}var sg,ug=[new $p(1.603231,2.094468),new $p(6.041143,7.080126),new $p(2.882459,3.518061),new $p(4.266906,5.178857),new $p(9.041765,10.66308)],cg=[117.001,114.697,97.404],lg=(t(hg,sg=Pd),Object.defineProperty(hg.prototype,"anchors",{get:function(){return this.config.anchors},enumerable:!0,configurable:!0}),hg.prototype.locateFaces=function(e,n){return p(this,void 0,void 0,function(){return P(this,function(t){switch(t.label){case 0:return[4,this.detect(e,n)];case 1:return[2,t.sent().map(function(t){return new zd(t.score,t.relativeBox,{width:t.imageWidth,height:t.imageHeight})})]}})})},hg.prototype.getDefaultModelName=function(){return"tiny_face_detector_model"},hg.prototype.extractParamsFromWeigthMap=function(t){return sg.prototype.extractParamsFromWeigthMap.call(this,t)},hg);function hg(){var t={withSeparableConvs:!0,iouThreshold:.4,classes:["face"],anchors:ug,meanRgb:cg,isFirstLayerConv2d:!0,filterSizes:[3,16,32,64,128,256,512]};return sg.call(this,t)||this}var pg,fg=[new $p(.738768,.874946),new $p(2.42204,2.65704),new $p(4.30971,7.04493),new $p(10.246,4.59428),new $p(12.6868,11.8741)],dg=[new $p(1.603231,2.094468),new $p(6.041143,7.080126),new $p(2.882459,3.518061),new $p(4.266906,5.178857),new $p(9.041765,10.66308)],vg=[117.001,114.697,97.404],mg=(t(gg,pg=Pd),Object.defineProperty(gg.prototype,"withSeparableConvs",{get:function(){return this.config.withSeparableConvs},enumerable:!0,configurable:!0}),Object.defineProperty(gg.prototype,"anchors",{get:function(){return this.config.anchors},enumerable:!0,configurable:!0}),gg.prototype.locateFaces=function(e,n){return p(this,void 0,void 0,function(){return P(this,function(t){switch(t.label){case 0:return[4,this.detect(e,n)];case 1:return[2,t.sent().map(function(t){return new zd(t.score,t.relativeBox,{width:t.imageWidth,height:t.imageHeight})})]}})})},gg.prototype.getDefaultModelName=function(){return this.withSeparableConvs?"tiny_yolov2_separable_conv_model":"tiny_yolov2_model"},gg.prototype.extractParamsFromWeigthMap=function(t){return pg.prototype.extractParamsFromWeigthMap.call(this,t)},gg);function gg(t){void 0===t&&(t=!0);var e=Object.assign({},{withSeparableConvs:t,iouThreshold:.4,classes:["face"]},t?{anchors:dg,meanRgb:vg}:{anchors:fg,withClassScores:!0});return pg.call(this,e)||this}function yg(t,e){return Cg.ssdMobilenetv1.locateFaces(t,e)}function xg(t){return Cg.faceLandmark68Net.detectLandmarks(t)}function bg(t){return Cg.ssdMobilenetv1.load(t)}var wg,Cg={ssdMobilenetv1:new Am,tinyFaceDetector:new lg,tinyYolov2:new mg,mtcnn:new ig,faceLandmark68Net:new $v,faceLandmark68TinyNet:new Zv,faceRecognitionNet:new pm,faceExpressionNet:new uv,ageGenderNet:new Dv},Eg=bg,_g=yg,Rg=xg,Ig=(t(Sg,wg=Wm),Sg);function Sg(t,e,n){var r=wg.call(this)||this;return r.parentTask=t,r.input=e,r.extractedFaces=n,r}var kg,Ng=(t(Ag,kg=Ig),Ag.prototype.run=function(){return p(this,void 0,void 0,function(){var e,n,r=this;return P(this,function(t){switch(t.label){case 0:return[4,this.parentTask];case 1:return[4,Um(e=t.sent(),this.input,function(e){return p(r,void 0,void 0,function(){return P(this,function(t){switch(t.label){case 0:return[4,Promise.all(e.map(function(t){return Cg.faceExpressionNet.predictExpressions(t)}))];case 1:return[2,t.sent()]}})})},this.extractedFaces)];case 2:return n=t.sent(),[2,e.map(function(t,e){return hv(t,n[e])})]}})})},Ag.prototype.withAgeAndGender=function(){return new Hg(this,this.input)},Ag);function Ag(){return null!==kg&&kg.apply(this,arguments)||this}var Tg,Dg=(t(Fg,Tg=Ig),Fg.prototype.run=function(){return p(this,void 0,void 0,function(){var e,n;return P(this,function(t){switch(t.label){case 0:return[4,this.parentTask];case 1:return(e=t.sent())?[4,Vm(e,this.input,function(t){return Cg.faceExpressionNet.predictExpressions(t)},this.extractedFaces)]:[2];case 2:return n=t.sent(),[2,hv(e,n)]}})})},Fg.prototype.withAgeAndGender=function(){return new $g(this,this.input)},Fg);function Fg(){return null!==Tg&&Tg.apply(this,arguments)||this}var Mg,Pg=(t(Og,Mg=Ng),Og.prototype.withAgeAndGender=function(){return new Yg(this,this.input)},Og.prototype.withFaceDescriptors=function(){return new iy(this,this.input)},Og);function Og(){return null!==Mg&&Mg.apply(this,arguments)||this}var Bg,Lg=(t(Wg,Bg=Dg),Wg.prototype.withAgeAndGender=function(){return new Zg(this,this.input)},Wg.prototype.withFaceDescriptor=function(){return new uy(this,this.input)},Wg);function Wg(){return null!==Bg&&Bg.apply(this,arguments)||this}var zg,Ug=(t(Vg,zg=Wm),Vg);function Vg(t,e,n){var r=zg.call(this)||this;return r.parentTask=t,r.input=e,r.extractedFaces=n,r}var Gg,Hg=(t(jg,Gg=Ug),jg.prototype.run=function(){return p(this,void 0,void 0,function(){var e,o,n=this;return P(this,function(t){switch(t.label){case 0:return[4,this.parentTask];case 1:return[4,Um(e=t.sent(),this.input,function(e){return p(n,void 0,void 0,function(){return P(this,function(t){switch(t.label){case 0:return[4,Promise.all(e.map(function(t){return Cg.ageGenderNet.predictAgeAndGender(t)}))];case 1:return[2,t.sent()]}})})},this.extractedFaces)];case 2:return o=t.sent(),[2,e.map(function(t,e){var n=o[e],r=n.age;return vm(mm(t,n.gender,n.genderProbability),r)})]}})})},jg.prototype.withFaceExpressions=function(){return new Ng(this,this.input)},jg);function jg(){return null!==Gg&&Gg.apply(this,arguments)||this}var qg,$g=(t(Kg,qg=Ug),Kg.prototype.run=function(){return p(this,void 0,void 0,function(){var e,n,r,o,i;return P(this,function(t){switch(t.label){case 0:return[4,this.parentTask];case 1:return(e=t.sent())?[4,Vm(e,this.input,function(t){return Cg.ageGenderNet.predictAgeAndGender(t)},this.extractedFaces)]:[2];case 2:return n=t.sent(),r=n.age,o=n.gender,i=n.genderProbability,[2,vm(mm(e,o,i),r)]}})})},Kg.prototype.withFaceExpressions=function(){return new Dg(this,this.input)},Kg);function Kg(){return null!==qg&&qg.apply(this,arguments)||this}var Xg,Yg=(t(Jg,Xg=Hg),Jg.prototype.withFaceExpressions=function(){return new Pg(this,this.input)},Jg.prototype.withFaceDescriptors=function(){return new iy(this,this.input)},Jg);function Jg(){return null!==Xg&&Xg.apply(this,arguments)||this}var Qg,Zg=(t(ty,Qg=$g),ty.prototype.withFaceExpressions=function(){return new Lg(this,this.input)},ty.prototype.withFaceDescriptor=function(){return new uy(this,this.input)},ty);function ty(){return null!==Qg&&Qg.apply(this,arguments)||this}var ey,ny=(t(ry,ey=Wm),ry);function ry(t,e){var n=ey.call(this)||this;return n.parentTask=t,n.input=e,n}var oy,iy=(t(ay,oy=ny),ay.prototype.run=function(){return p(this,void 0,void 0,function(){var n;return P(this,function(t){switch(t.label){case 0:return[4,this.parentTask];case 1:return[4,Um(n=t.sent(),this.input,function(t){return Promise.all(t.map(function(t){return Cg.faceRecognitionNet.computeFaceDescriptor(t)}))},null,function(t){return t.landmarks.align(null,{useDlibAlignment:!0})})];case 2:return[2,t.sent().map(function(t,e){return dm(n[e],t)})]}})})},ay.prototype.withFaceExpressions=function(){return new Pg(this,this.input)},ay.prototype.withAgeAndGender=function(){return new Yg(this,this.input)},ay);function ay(){return null!==oy&&oy.apply(this,arguments)||this}var sy,uy=(t(cy,sy=ny),cy.prototype.run=function(){return p(this,void 0,void 0,function(){var e,n;return P(this,function(t){switch(t.label){case 0:return[4,this.parentTask];case 1:return(e=t.sent())?[4,Vm(e,this.input,function(t){return Cg.faceRecognitionNet.computeFaceDescriptor(t)},null,function(t){return t.landmarks.align(null,{useDlibAlignment:!0})})]:[2];case 2:return n=t.sent(),[2,dm(e,n)]}})})},cy.prototype.withFaceExpressions=function(){return new Lg(this,this.input)},cy.prototype.withAgeAndGender=function(){return new Zg(this,this.input)},cy);function cy(){return null!==sy&&sy.apply(this,arguments)||this}var ly,hy=(t(py,ly=Wm),Object.defineProperty(py.prototype,"landmarkNet",{get:function(){return this.useTinyLandmarkNet?Cg.faceLandmark68TinyNet:Cg.faceLandmark68Net},enumerable:!0,configurable:!0}),py);function py(t,e,n){var r=ly.call(this)||this;return r.parentTask=t,r.input=e,r.useTinyLandmarkNet=n,r}var fy,dy=(t(vy,fy=hy),vy.prototype.run=function(){return p(this,void 0,void 0,function(){var e,n,r,o,i,a=this;return P(this,function(t){switch(t.label){case 0:return[4,this.parentTask];case 1:return e=t.sent(),n=e.map(function(t){return t.detection}),this.input instanceof yt?[4,Vv(this.input,n)]:[3,3];case 2:return o=t.sent(),[3,5];case 3:return[4,Uv(this.input,n)];case 4:o=t.sent(),t.label=5;case 5:return r=o,[4,Promise.all(r.map(function(t){return a.landmarkNet.detectLandmarks(t)}))];case 6:return i=t.sent(),r.forEach(function(t){return t instanceof yt&&t.dispose()}),[2,e.map(function(t,e){return yv(t,i[e])})]}})})},vy.prototype.withFaceExpressions=function(){return new Pg(this,this.input)},vy.prototype.withAgeAndGender=function(){return new Yg(this,this.input)},vy.prototype.withFaceDescriptors=function(){return new iy(this,this.input)},vy);function vy(){return null!==fy&&fy.apply(this,arguments)||this}var my,gy=(t(yy,my=hy),yy.prototype.run=function(){return p(this,void 0,void 0,function(){var e,n,r,o,i;return P(this,function(t){switch(t.label){case 0:return[4,this.parentTask];case 1:return(e=t.sent())?(n=e.detection,this.input instanceof yt?[4,Vv(this.input,[n])]:[3,3]):[2];case 2:return o=t.sent(),[3,5];case 3:return[4,Uv(this.input,[n])];case 4:o=t.sent(),t.label=5;case 5:return r=o,[4,this.landmarkNet.detectLandmarks(r[0])];case 6:return i=t.sent(),r.forEach(function(t){return t instanceof yt&&t.dispose()}),[2,yv(e,i)]}})})},yy.prototype.withFaceExpressions=function(){return new Lg(this,this.input)},yy.prototype.withAgeAndGender=function(){return new Zg(this,this.input)},yy.prototype.withFaceDescriptor=function(){return new uy(this,this.input)},yy);function yy(){return null!==my&&my.apply(this,arguments)||this}var xy,by=(t(wy,xy=Wm),wy);function wy(t,e){void 0===e&&(e=new Sm);var n=xy.call(this)||this;return n.input=t,n.options=e,n}var Cy,Ey=(t(_y,Cy=by),_y.prototype.run=function(){return p(this,void 0,void 0,function(){var e,n,r,o;return P(this,function(t){switch(t.label){case 0:return n=(e=this).input,(r=e.options)instanceof gm?[4,Cg.mtcnn.forward(n,r)]:[3,2];case 1:return[2,t.sent().map(function(t){return t.detection})];case 2:if(!(o=r instanceof Bm?function(t){return Cg.tinyFaceDetector.locateFaces(t,r)}:r instanceof Sm?function(t){return Cg.ssdMobilenetv1.locateFaces(t,r)}:r instanceof Dd?function(t){return Cg.tinyYolov2.locateFaces(t,r)}:null))throw new Error("detectFaces - expected options to be instance of TinyFaceDetectorOptions | SsdMobilenetv1Options | MtcnnOptions | TinyYolov2Options");return[2,o(n)]}})})},_y.prototype.runAndExtendWithFaceDetections=function(){var t=this;return new Promise(function(n){return p(t,void 0,void 0,function(){var e;return P(this,function(t){switch(t.label){case 0:return[4,this.run()];case 1:return e=t.sent(),[2,n(e.map(function(t){return Gd({},t)}))]}})})})},_y.prototype.withFaceLandmarks=function(t){return void 0===t&&(t=!1),new dy(this.runAndExtendWithFaceDetections(),this.input,t)},_y.prototype.withFaceExpressions=function(){return new Ng(this.runAndExtendWithFaceDetections(),this.input)},_y.prototype.withAgeAndGender=function(){return new Hg(this.runAndExtendWithFaceDetections(),this.input)},_y);function _y(){return null!==Cy&&Cy.apply(this,arguments)||this}var Ry,Iy=(t(Sy,Ry=by),Sy.prototype.run=function(){return p(this,void 0,void 0,function(){var e,n;return P(this,function(t){switch(t.label){case 0:return[4,new Ey(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]}})})},Sy.prototype.runAndExtendWithFaceDetection=function(){var t=this;return new Promise(function(n){return p(t,void 0,void 0,function(){var e;return P(this,function(t){switch(t.label){case 0:return[4,this.run()];case 1:return e=t.sent(),[2,n(e?Gd({},e):void 0)]}})})})},Sy.prototype.withFaceLandmarks=function(t){return void 0===t&&(t=!1),new gy(this.runAndExtendWithFaceDetection(),this.input,t)},Sy.prototype.withFaceExpressions=function(){return new Dg(this.runAndExtendWithFaceDetection(),this.input)},Sy.prototype.withAgeAndGender=function(){return new $g(this.runAndExtendWithFaceDetection(),this.input)},Sy);function Sy(){return null!==Ry&&Ry.apply(this,arguments)||this}function ky(t,e){return void 0===e&&(e=new Sm),new Ey(t,e)}function Ny(e,n){return p(this,void 0,void 0,function(){return P(this,function(t){switch(t.label){case 0:return[4,ky(e,new Sm(n?{minConfidence:n}:{})).withFaceLandmarks().withFaceDescriptors()];case 1:return[2,t.sent()]}})})}var Ay=Ny;function Ty(t,e){if(t.length!==e.length)throw new Error("euclideanDistance: arr1.length !== arr2.length");var n=Array.from(t),r=Array.from(e);return Math.sqrt(n.map(function(t,e){return t-r[e]}).reduce(function(t,e){return t+Math.pow(e,2)},0))}var Dy=(Object.defineProperty(Fy.prototype,"labeledDescriptors",{get:function(){return this._labeledDescriptors},enumerable:!0,configurable:!0}),Object.defineProperty(Fy.prototype,"distanceThreshold",{get:function(){return 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Error("FaceRecognizer.constructor - expected atleast one input");function r(){return"person "+o++}var o=1;this._labeledDescriptors=n.map(function(t){if(t instanceof Wv)return t;if(t instanceof Float32Array)return new Wv(r(),[t]);if(t.descriptor&&t.descriptor instanceof Float32Array)return new Wv(r(),[t.descriptor]);throw new Error("FaceRecognizer.constructor - expected inputs to be of type LabeledFaceDescriptors | WithFaceDescriptor<any> | Float32Array | Array<LabeledFaceDescriptors | WithFaceDescriptor<any> | Float32Array>")})}var My=M(M({},Hf),Cv);c.AgeGenderNet=Dv,c.BoundingBox=pf,c.Box=cf,c.ComposableTask=Wm,c.ComputeAllFaceDescriptorsTask=iy,c.ComputeFaceDescriptorsTaskBase=ny,c.ComputeSingleFaceDescriptorTask=uy,c.DetectAllFaceLandmarksTask=dy,c.DetectAllFacesTask=Ey,c.DetectFaceLandmarksTaskBase=hy,c.DetectFacesTaskBase=by,c.DetectSingleFaceLandmarksTask=gy,c.DetectSingleFaceTask=Iy,c.Dimensions=jp,c.FACE_EXPRESSION_LABELS=ov,c.FaceDetection=zd,c.FaceDetectionNet=Mm,c.FaceExpressionNet=uv,c.FaceExpressions=iv,c.FaceLandmark68Net=$v,c.FaceLandmark68TinyNet=Zv,c.FaceLandmarkNet=nm,c.FaceLandmarks=pv,c.FaceLandmarks5=Pv,c.FaceLandmarks68=vv,c.FaceMatch=Bv,c.FaceMatcher=Dy,c.FaceRecognitionNet=pm,c.LabeledBox=vf,c.LabeledFaceDescriptors=Wv,c.Mtcnn=ig,c.MtcnnOptions=gm,c.NetInput=dd,c.NeuralNetwork=gd,c.ObjectDetection=gf,c.Point=$p,c.PredictedBox=bf,c.Rect=_f,c.SsdMobilenetv1=Am,c.SsdMobilenetv1Options=Sm,c.TfjsImageRecognitionBase=Bd,c.TinyFaceDetector=lg,c.TinyFaceDetectorOptions=Bm,c.TinyYolov2=mg,c.allFaces=Ay,c.allFacesMtcnn=function(e,n){return void 0===n&&(n={}),p(this,void 0,void 0,function(){return P(this,function(t){switch(t.label){case 0:return[4,ky(e,new gm(n)).withFaceLandmarks().withFaceDescriptors()];case 1:return[2,t.sent()]}})})},c.allFacesSsdMobilenetv1=Ny,c.allFacesTinyYolov2=function(e,n){return void 0===n&&(n={}),p(this,void 0,void 0,function(){return P(this,function(t){switch(t.label){case 0:return[4,ky(e,new Dd(n)).withFaceLandmarks().withFaceDescriptors()];case 1:return[2,t.sent()]}})})},c.awaitMediaLoaded=nd,c.bufferToImage=rd,c.computeFaceDescriptor=function(t){return Cg.faceRecognitionNet.computeFaceDescriptor(t)},c.computeReshapedDimensions=rf,c.createCanvas=id,c.createCanvasFromMedia=ad,c.createFaceDetectionNet=function(t){return Dm(t)},c.createFaceRecognitionNet=function(t){var e=new pm;return e.extractWeights(t),e},c.createMtcnn=function(t){var e=new ig;return e.extractWeights(t),e},c.createSsdMobilenetv1=Dm,c.createTinyFaceDetector=function(t){var e=new lg;return e.extractWeights(t),e},c.createTinyYolov2=function(t,e){void 0===e&&(e=!0);var n=new mg(e);return n.extractWeights(t),n},c.detectAllFaces=ky,c.detectFaceLandmarks=xg,c.detectFaceLandmarksTiny=function(t){return Cg.faceLandmark68TinyNet.detectLandmarks(t)},c.detectLandmarks=Rg,c.detectSingleFace=function(t,e){return void 0===e&&(e=new Sm),new Iy(t,e)},c.draw=My,c.env=Pf,c.euclideanDistance=Ty,c.extendWithAge=vm,c.extendWithFaceDescriptor=dm,c.extendWithFaceDetection=Gd,c.extendWithFaceExpressions=hv,c.extendWithFaceLandmarks=yv,c.extendWithGender=mm,c.extractFaceTensors=Vv,c.extractFaces=Uv,c.fetchImage=function(r){return p(this,void 0,void 0,function(){var e,n;return P(this,function(t){switch(t.label){case 0:return[4,sd(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,rd(n)]}})})},c.fetchJson=ud,c.fetchNetWeights=function(n){return p(this,void 0,void 0,function(){var e;return P(this,function(t){switch(t.label){case 0:return e=Float32Array.bind,[4,sd(n)];case 1:return[4,t.sent().arrayBuffer()];case 2:return[2,new(e.apply(Float32Array,[void 0,t.sent()]))]}})})},c.fetchOrThrow=sd,c.getCenterPoint=of,c.getContext2dOrThrow=Bf,c.getMediaDimensions=od,c.imageTensorToCanvas=cd,c.imageToSquare=ld,c.inverseSigmoid=function(t){return Math.log(t/(1-t))},c.iou=xd,c.isDimensions=nf,c.isEven=tf,c.isFloat=Zp,c.isMediaElement=hd,c.isMediaLoaded=ed,c.isTensor=Xp,c.isTensor1D=function(t){return Xp(t,1)},c.isTensor2D=Yp,c.isTensor3D=Jp,c.isTensor4D=Qp,c.isValidNumber=sf,c.isValidProbablitiy=uf,c.isWithAge=function(t){return"number"==typeof t.age},c.isWithFaceDetection=Vd,c.isWithFaceExpressions=lv,c.isWithFaceLandmarks=gv,c.isWithGender=function(t){return(t.gender===c.Gender.MALE||t.gender===c.Gender.FEMALE)&&uf(t.genderProbability)},c.loadAgeGenderModel=function(t){return Cg.ageGenderNet.load(t)},c.loadFaceDetectionModel=Eg,c.loadFaceExpressionModel=function(t){return Cg.faceExpressionNet.load(t)},c.loadFaceLandmarkModel=function(t){return Cg.faceLandmark68Net.load(t)},c.loadFaceLandmarkTinyModel=function(t){return Cg.faceLandmark68TinyNet.load(t)},c.loadFaceRecognitionModel=function(t){return Cg.faceRecognitionNet.load(t)},c.loadMtcnnModel=function(t){return Cg.mtcnn.load(t)},c.loadSsdMobilenetv1Model=bg,c.loadTinyFaceDetectorModel=function(t){return Cg.tinyFaceDetector.load(t)},c.loadTinyYolov2Model=function(t){return Cg.tinyYolov2.load(t)},c.loadWeightMap=pd,c.locateFaces=_g,c.matchDimensions=function(t,e,n){void 0===n&&(n=!1);var r=n?od(e):e,o=r.width,i=r.height;return{width:t.width=o,height:t.height=i}},c.minBbox=function(t){var e=t.map(function(t){return t.x}),n=t.map(function(t){return t.y}),r=e.reduce(function(t,e){return e<t?e:t},1/0),o=n.reduce(function(t,e){return e<t?e:t},1/0),i=e.reduce(function(t,e){return t<e?e:t},0),a=n.reduce(function(t,e){return t<e?e:t},0);return new pf(r,o,i,a)},c.mtcnn=function(t,e){return Cg.mtcnn.forward(t,e)},c.nets=Cg,c.nonMaxSuppression=bd,c.normalize=wd,c.padToSquare=fd,c.predictAgeAndGender=function(t){return Cg.ageGenderNet.predictAgeAndGender(t)},c.range=af,c.recognizeFaceExpressions=function(t){return Cg.faceExpressionNet.predictExpressions(t)},c.resizeResults=function e(t,n){var r=new jp(n.width,n.height),o=r.width,i=r.height;if(o<=0||i<=0)throw new Error("resizeResults - invalid dimensions: "+JSON.stringify({width:o,height:i}));if(Array.isArray(t))return t.map(function(t){return e(t,{width:o,height:i})});if(gv(t)){var a=t.detection.forSize(o,i),s=t.unshiftedLandmarks.forSize(a.box.width,a.box.height);return yv(Gd(t,a),s)}return Vd(t)?Gd(t,t.detection.forSize(o,i)):t instanceof pv||t instanceof zd?t.forSize(o,i):t},c.resolveInput=Of,c.round=ef,c.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},c.sigmoid=Cd,c.ssdMobilenetv1=yg,c.tf=Hp,c.tinyFaceDetector=function(t,e){return Cg.tinyFaceDetector.locateFaces(t,e)},c.tinyYolov2=function(t,e){return Cg.tinyYolov2.locateFaces(t,e)},c.toNetInput=md,Object.defineProperty(c,"__esModule",{value:!0})});