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a=o.split(".").splice(0,2).map(i=>parseInt(i,10)||0);if(a.push(0),!(a[0]===1&&a[1]<5)){if(a[0]===1&&a[1]<6)return"Cupcake";if(a[0]===1&&a[1]>=6)return"Donut";if(a[0]===2&&a[1]<2)return"Eclair";if(a[0]===2&&a[1]===2)return"Froyo";if(a[0]===2&&a[1]>2)return"Gingerbread";if(a[0]===3)return"Honeycomb";if(a[0]===4&&a[1]<1)return"Ice Cream Sandwich";if(a[0]===4&&a[1]<4)return"Jelly Bean";if(a[0]===4&&a[1]>=4)return"KitKat";if(a[0]===5)return"Lollipop";if(a[0]===6)return"Marshmallow";if(a[0]===7)return"Nougat";if(a[0]===8)return"Oreo";if(a[0]===9)return"Pie"}}static getVersionPrecision(o){return o.split(".").length}static compareVersions(o,a,i=!1){const n=ni.getVersionPrecision(o),s=ni.getVersionPrecision(a);let h=Math.max(n,s),v=0;const g=ni.map([o,a],O=>{const A=h-ni.getVersionPrecision(O),S=O+new Array(A+1).join(".0");return ni.map(S.split("."),M=>new Array(20-M.length).join("0")+M).reverse()});for(i&&(v=h-Math.min(n,s)),h-=1;h>=v;){if(g[0][h]>g[1][h])return 1;if(g[0][h]===g[1][h]){if(h===v)return 0;h-=1}else if(g[0][h]<g[1][h])return-1}}static map(o,a){const i=[];let n;if(Array.prototype.map)return Array.prototype.map.call(o,a);for(n=0;n<o.length;n+=1)i.push(a(o[n]));return i}static find(o,a){let i,n;if(Array.prototype.find)return Array.prototype.find.call(o,a);for(i=0,n=o.length;i<n;i+=1){const s=o[i];if(a(s,i))return s}}static assign(o,...a){const i=o;let n,s;if(Object.assign)return Object.assign(o,...a);for(n=0,s=a.length;n<s;n+=1){const h=a[n];typeof h=="object"&&h!==null&&Object.keys(h).forEach(g=>{i[g]=h[g]})}return o}static getBrowserAlias(o){return Xle[o]}static getBrowserTypeByAlias(o){return LK[o]||""}}const cu=/version\/(\d+(\.?_?\d+)+)/i,Jle=[{test:[/googlebot/i],describe(c){const o={name:"Googlebot"},a=ni.getFirstMatch(/googlebot\/(\d+(\.\d+))/i,c)||ni.getFirstMatch(cu,c);return a&&(o.version=a),o}},{test:[/opera/i],describe(c){const o={name:"Opera"},a=ni.getFirstMatch(cu,c)||ni.getFirstMatch(/(?:opera)[\s/](\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test:[/opr\/|opios/i],describe(c){const o={name:"Opera"},a=ni.getFirstMatch(/(?:opr|opios)[\s/](\S+)/i,c)||ni.getFirstMatch(cu,c);return a&&(o.version=a),o}},{test:[/SamsungBrowser/i],describe(c){const o={name:"Samsung Internet for Android"},a=ni.getFirstMatch(cu,c)||ni.getFirstMatch(/(?:SamsungBrowser)[\s/](\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test:[/Whale/i],describe(c){const o={name:"NAVER Whale Browser"},a=ni.getFirstMatch(cu,c)||ni.getFirstMatch(/(?:whale)[\s/](\d+(?:\.\d+)+)/i,c);return a&&(o.version=a),o}},{test:[/MZBrowser/i],describe(c){const o={name:"MZ Browser"},a=ni.getFirstMatch(/(?:MZBrowser)[\s/](\d+(?:\.\d+)+)/i,c)||ni.getFirstMatch(cu,c);return a&&(o.version=a),o}},{test:[/focus/i],describe(c){const o={name:"Focus"},a=ni.getFirstMatch(/(?:focus)[\s/](\d+(?:\.\d+)+)/i,c)||ni.getFirstMatch(cu,c);return a&&(o.version=a),o}},{test:[/swing/i],describe(c){const o={name:"Swing"},a=ni.getFirstMatch(/(?:swing)[\s/](\d+(?:\.\d+)+)/i,c)||ni.getFirstMatch(cu,c);return a&&(o.version=a),o}},{test:[/coast/i],describe(c){const o={name:"Opera Coast"},a=ni.getFirstMatch(cu,c)||ni.getFirstMatch(/(?:coast)[\s/](\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test:[/opt\/\d+(?:.?_?\d+)+/i],describe(c){const o={name:"Opera Touch"},a=ni.getFirstMatch(/(?:opt)[\s/](\d+(\.?_?\d+)+)/i,c)||ni.getFirstMatch(cu,c);return a&&(o.version=a),o}},{test:[/yabrowser/i],describe(c){const o={name:"Yandex Browser"},a=ni.getFirstMatch(/(?:yabrowser)[\s/](\d+(\.?_?\d+)+)/i,c)||ni.getFirstMatch(cu,c);return a&&(o.version=a),o}},{test:[/ucbrowser/i],describe(c){const o={name:"UC Browser"},a=ni.getFirstMatch(cu,c)||ni.getFirstMatch(/(?:ucbrowser)[\s/](\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test:[/Maxthon|mxios/i],describe(c){const o={name:"Maxthon"},a=ni.getFirstMatch(cu,c)||ni.getFirstMatch(/(?:Maxthon|mxios)[\s/](\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test:[/epiphany/i],describe(c){const o={name:"Epiphany"},a=ni.getFirstMatch(cu,c)||ni.getFirstMatch(/(?:epiphany)[\s/](\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test:[/puffin/i],describe(c){const o={name:"Puffin"},a=ni.getFirstMatch(cu,c)||ni.getFirstMatch(/(?:puffin)[\s/](\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test:[/sleipnir/i],describe(c){const o={name:"Sleipnir"},a=ni.getFirstMatch(cu,c)||ni.getFirstMatch(/(?:sleipnir)[\s/](\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test:[/k-meleon/i],describe(c){const o={name:"K-Meleon"},a=ni.getFirstMatch(cu,c)||ni.getFirstMatch(/(?:k-meleon)[\s/](\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test:[/micromessenger/i],describe(c){const o={name:"WeChat"},a=ni.getFirstMatch(/(?:micromessenger)[\s/](\d+(\.?_?\d+)+)/i,c)||ni.getFirstMatch(cu,c);return a&&(o.version=a),o}},{test:[/qqbrowser/i],describe(c){const o={name:/qqbrowserlite/i.test(c)?"QQ Browser Lite":"QQ Browser"},a=ni.getFirstMatch(/(?:qqbrowserlite|qqbrowser)[/](\d+(\.?_?\d+)+)/i,c)||ni.getFirstMatch(cu,c);return a&&(o.version=a),o}},{test:[/msie|trident/i],describe(c){const o={name:"Internet Explorer"},a=ni.getFirstMatch(/(?:msie |rv:)(\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test:[/\sedg\//i],describe(c){const o={name:"Microsoft Edge"},a=ni.getFirstMatch(/\sedg\/(\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test:[/edg([ea]|ios)/i],describe(c){const o={name:"Microsoft Edge"},a=ni.getSecondMatch(/edg([ea]|ios)\/(\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test:[/vivaldi/i],describe(c){const o={name:"Vivaldi"},a=ni.getFirstMatch(/vivaldi\/(\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test:[/seamonkey/i],describe(c){const o={name:"SeaMonkey"},a=ni.getFirstMatch(/seamonkey\/(\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test:[/sailfish/i],describe(c){const o={name:"Sailfish"},a=ni.getFirstMatch(/sailfish\s?browser\/(\d+(\.\d+)?)/i,c);return a&&(o.version=a),o}},{test:[/silk/i],describe(c){const o={name:"Amazon Silk"},a=ni.getFirstMatch(/silk\/(\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test:[/phantom/i],describe(c){const o={name:"PhantomJS"},a=ni.getFirstMatch(/phantomjs\/(\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test:[/slimerjs/i],describe(c){const o={name:"SlimerJS"},a=ni.getFirstMatch(/slimerjs\/(\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test:[/blackberry|\bbb\d+/i,/rim\stablet/i],describe(c){const o={name:"BlackBerry"},a=ni.getFirstMatch(cu,c)||ni.getFirstMatch(/blackberry[\d]+\/(\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test:[/(web|hpw)[o0]s/i],describe(c){const o={name:"WebOS Browser"},a=ni.getFirstMatch(cu,c)||ni.getFirstMatch(/w(?:eb)?[o0]sbrowser\/(\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test:[/bada/i],describe(c){const o={name:"Bada"},a=ni.getFirstMatch(/dolfin\/(\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test:[/tizen/i],describe(c){const o={name:"Tizen"},a=ni.getFirstMatch(/(?:tizen\s?)?browser\/(\d+(\.?_?\d+)+)/i,c)||ni.getFirstMatch(cu,c);return a&&(o.version=a),o}},{test:[/qupzilla/i],describe(c){const o={name:"QupZilla"},a=ni.getFirstMatch(/(?:qupzilla)[\s/](\d+(\.?_?\d+)+)/i,c)||ni.getFirstMatch(cu,c);return a&&(o.version=a),o}},{test:[/firefox|iceweasel|fxios/i],describe(c){const o={name:"Firefox"},a=ni.getFirstMatch(/(?:firefox|iceweasel|fxios)[\s/](\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test:[/electron/i],describe(c){const o={name:"Electron"},a=ni.getFirstMatch(/(?:electron)\/(\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test:[/MiuiBrowser/i],describe(c){const o={name:"Miui"},a=ni.getFirstMatch(/(?:MiuiBrowser)[\s/](\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test:[/chromium/i],describe(c){const o={name:"Chromium"},a=ni.getFirstMatch(/(?:chromium)[\s/](\d+(\.?_?\d+)+)/i,c)||ni.getFirstMatch(cu,c);return a&&(o.version=a),o}},{test:[/chrome|crios|crmo/i],describe(c){const o={name:"Chrome"},a=ni.getFirstMatch(/(?:chrome|crios|crmo)\/(\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test:[/GSA/i],describe(c){const o={name:"Google Search"},a=ni.getFirstMatch(/(?:GSA)\/(\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test(c){const o=!c.test(/like android/i),a=c.test(/android/i);return o&&a},describe(c){const o={name:"Android Browser"},a=ni.getFirstMatch(cu,c);return a&&(o.version=a),o}},{test:[/playstation 4/i],describe(c){const o={name:"PlayStation 4"},a=ni.getFirstMatch(cu,c);return a&&(o.version=a),o}},{test:[/safari|applewebkit/i],describe(c){const o={name:"Safari"},a=ni.getFirstMatch(cu,c);return a&&(o.version=a),o}},{test:[/.*/i],describe(c){const o=/^(.*)\/(.*) /,a=/^(.*)\/(.*)[ \t]\((.*)/,n=c.search("\\(")!==-1?a:o;return{name:ni.getFirstMatch(n,c),version:ni.getSecondMatch(n,c)}}}],Qle=[{test:[/Roku\/DVP/],describe(c){const o=ni.getFirstMatch(/Roku\/DVP-(\d+\.\d+)/i,c);return{name:ap.Roku,version:o}}},{test:[/windows phone/i],describe(c){const o=ni.getFirstMatch(/windows phone (?:os)?\s?(\d+(\.\d+)*)/i,c);return{name:ap.WindowsPhone,version:o}}},{test:[/windows /i],describe(c){const o=ni.getFirstMatch(/Windows ((NT|XP)( \d\d?.\d)?)/i,c),a=ni.getWindowsVersionName(o);return{name:ap.Windows,version:o,versionName:a}}},{test:[/Macintosh(.*?) FxiOS(.*?)\//],describe(c){const o={name:ap.iOS},a=ni.getSecondMatch(/(Version\/)(\d[\d.]+)/,c);return a&&(o.version=a),o}},{test:[/macintosh/i],describe(c){const o=ni.getFirstMatch(/mac os x (\d+(\.?_?\d+)+)/i,c).replace(/[_\s]/g,"."),a=ni.getMacOSVersionName(o),i={name:ap.MacOS,version:o};return a&&(i.versionName=a),i}},{test:[/(ipod|iphone|ipad)/i],describe(c){const o=ni.getFirstMatch(/os (\d+([_\s]\d+)*) like mac os x/i,c).replace(/[_\s]/g,".");return{name:ap.iOS,version:o}}},{test(c){const o=!c.test(/like android/i),a=c.test(/android/i);return o&&a},describe(c){const o=ni.getFirstMatch(/android[\s/-](\d+(\.\d+)*)/i,c),a=ni.getAndroidVersionName(o),i={name:ap.Android,version:o};return a&&(i.versionName=a),i}},{test:[/(web|hpw)[o0]s/i],describe(c){const o=ni.getFirstMatch(/(?:web|hpw)[o0]s\/(\d+(\.\d+)*)/i,c),a={name:ap.WebOS};return o&&o.length&&(a.version=o),a}},{test:[/blackberry|\bbb\d+/i,/rim\stablet/i],describe(c){const o=ni.getFirstMatch(/rim\stablet\sos\s(\d+(\.\d+)*)/i,c)||ni.getFirstMatch(/blackberry\d+\/(\d+([_\s]\d+)*)/i,c)||ni.getFirstMatch(/\bbb(\d+)/i,c);return{name:ap.BlackBerry,version:o}}},{test:[/bada/i],describe(c){const o=ni.getFirstMatch(/bada\/(\d+(\.\d+)*)/i,c);return{name:ap.Bada,version:o}}},{test:[/tizen/i],describe(c){const o=ni.getFirstMatch(/tizen[/\s](\d+(\.\d+)*)/i,c);return{name:ap.Tizen,version:o}}},{test:[/linux/i],describe(){return{name:ap.Linux}}},{test:[/CrOS/],describe(){return{name:ap.ChromeOS}}},{test:[/PlayStation 4/],describe(c){const o=ni.getFirstMatch(/PlayStation 4[/\s](\d+(\.\d+)*)/i,c);return{name:ap.PlayStation4,version:o}}}],Zle=[{test:[/googlebot/i],describe(){return{type:"bot",vendor:"Google"}}},{test:[/huawei/i],describe(c){const o=ni.getFirstMatch(/(can-l01)/i,c)&&"Nova",a={type:Kc.mobile,vendor:"Huawei"};return o&&(a.model=o),a}},{test:[/nexus\s*(?:7|8|9|10).*/i],describe(){return{type:Kc.tablet,vendor:"Nexus"}}},{test:[/ipad/i],describe(){return{type:Kc.tablet,vendor:"Apple",model:"iPad"}}},{test:[/Macintosh(.*?) FxiOS(.*?)\//],describe(){return{type:Kc.tablet,vendor:"Apple",model:"iPad"}}},{test:[/kftt build/i],describe(){return{type:Kc.tablet,vendor:"Amazon",model:"Kindle Fire HD 7"}}},{test:[/silk/i],describe(){return{type:Kc.tablet,vendor:"Amazon"}}},{test:[/tablet(?! pc)/i],describe(){return{type:Kc.tablet}}},{test(c){const o=c.test(/ipod|iphone/i),a=c.test(/like (ipod|iphone)/i);return o&&!a},describe(c){const o=ni.getFirstMatch(/(ipod|iphone)/i,c);return{type:Kc.mobile,vendor:"Apple",model:o}}},{test:[/nexus\s*[0-6].*/i,/galaxy nexus/i],describe(){return{type:Kc.mobile,vendor:"Nexus"}}},{test:[/[^-]mobi/i],describe(){return{type:Kc.mobile}}},{test(c){return c.getBrowserName(!0)==="blackberry"},describe(){return{type:Kc.mobile,vendor:"BlackBerry"}}},{test(c){return c.getBrowserName(!0)==="bada"},describe(){return{type:Kc.mobile}}},{test(c){return c.getBrowserName()==="windows phone"},describe(){return{type:Kc.mobile,vendor:"Microsoft"}}},{test(c){const o=Number(String(c.getOSVersion()).split(".")[0]);return c.getOSName(!0)==="android"&&o>=3},describe(){return{type:Kc.tablet}}},{test(c){return c.getOSName(!0)==="android"},describe(){return{type:Kc.mobile}}},{test(c){return c.getOSName(!0)==="macos"},describe(){return{type:Kc.desktop,vendor:"Apple"}}},{test(c){return c.getOSName(!0)==="windows"},describe(){return{type:Kc.desktop}}},{test(c){return c.getOSName(!0)==="linux"},describe(){return{type:Kc.desktop}}},{test(c){return c.getOSName(!0)==="playstation 4"},describe(){return{type:Kc.tv}}},{test(c){return c.getOSName(!0)==="roku"},describe(){return{type:Kc.tv}}}],efe=[{test(c){return c.getBrowserName(!0)==="microsoft edge"},describe(c){if(/\sedg\//i.test(c))return{name:Ex.Blink};const a=ni.getFirstMatch(/edge\/(\d+(\.?_?\d+)+)/i,c);return{name:Ex.EdgeHTML,version:a}}},{test:[/trident/i],describe(c){const o={name:Ex.Trident},a=ni.getFirstMatch(/trident\/(\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test(c){return c.test(/presto/i)},describe(c){const o={name:Ex.Presto},a=ni.getFirstMatch(/presto\/(\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test(c){const o=c.test(/gecko/i),a=c.test(/like gecko/i);return o&&!a},describe(c){const o={name:Ex.Gecko},a=ni.getFirstMatch(/gecko\/(\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}},{test:[/(apple)?webkit\/537\.36/i],describe(){return{name:Ex.Blink}}},{test:[/(apple)?webkit/i],describe(c){const o={name:Ex.WebKit},a=ni.getFirstMatch(/webkit\/(\d+(\.?_?\d+)+)/i,c);return a&&(o.version=a),o}}];class k${constructor(o,a=!1){if(o==null||o==="")throw new Error("UserAgent parameter can't be empty");this._ua=o,this.parsedResult={},a!==!0&&this.parse()}getUA(){return this._ua}test(o){return o.test(this._ua)}parseBrowser(){this.parsedResult.browser={};const o=ni.find(Jle,a=>{if(typeof a.test=="function")return a.test(this);if(a.test instanceof Array)return a.test.some(i=>this.test(i));throw new Error("Browser's test function is not valid")});return o&&(this.parsedResult.browser=o.describe(this.getUA())),this.parsedResult.browser}getBrowser(){return this.parsedResult.browser?this.parsedResult.browser:this.parseBrowser()}getBrowserName(o){return o?String(this.getBrowser().name).toLowerCase()||"":this.getBrowser().name||""}getBrowserVersion(){return this.getBrowser().version}getOS(){return this.parsedResult.os?this.parsedResult.os:this.parseOS()}parseOS(){this.parsedResult.os={};const o=ni.find(Qle,a=>{if(typeof a.test=="function")return a.test(this);if(a.test instanceof Array)return a.test.some(i=>this.test(i));throw new Error("Browser's test function is not valid")});return o&&(this.parsedResult.os=o.describe(this.getUA())),this.parsedResult.os}getOSName(o){const{name:a}=this.getOS();return o?String(a).toLowerCase()||"":a||""}getOSVersion(){return this.getOS().version}getPlatform(){return this.parsedResult.platform?this.parsedResult.platform:this.parsePlatform()}getPlatformType(o=!1){const{type:a}=this.getPlatform();return o?String(a).toLowerCase()||"":a||""}parsePlatform(){this.parsedResult.platform={};const o=ni.find(Zle,a=>{if(typeof a.test=="function")return a.test(this);if(a.test instanceof Array)return a.test.some(i=>this.test(i));throw new Error("Browser's test function is not valid")});return o&&(this.parsedResult.platform=o.describe(this.getUA())),this.parsedResult.platform}getEngine(){return this.parsedResult.engine?this.parsedResult.engine:this.parseEngine()}getEngineName(o){return o?String(this.getEngine().name).toLowerCase()||"":this.getEngine().name||""}parseEngine(){this.parsedResult.engine={};const o=ni.find(efe,a=>{if(typeof a.test=="function")return a.test(this);if(a.test instanceof Array)return a.test.some(i=>this.test(i));throw new Error("Browser's test function is not valid")});return o&&(this.parsedResult.engine=o.describe(this.getUA())),this.parsedResult.engine}parse(){return this.parseBrowser(),this.parseOS(),this.parsePlatform(),this.parseEngine(),this}getResult(){return ni.assign({},this.parsedResult)}satisfies(o){const a={};let i=0;const n={};let s=0;if(Object.keys(o).forEach(v=>{const g=o[v];typeof g=="string"?(n[v]=g,s+=1):typeof g=="object"&&(a[v]=g,i+=1)}),i>0){const v=Object.keys(a),g=ni.find(v,A=>this.isOS(A));if(g){const A=this.satisfies(a[g]);if(A!==void 0)return A}const O=ni.find(v,A=>this.isPlatform(A));if(O){const A=this.satisfies(a[O]);if(A!==void 0)return A}}if(s>0){const v=Object.keys(n),g=ni.find(v,O=>this.isBrowser(O,!0));if(g!==void 0)return this.compareVersion(n[g])}}isBrowser(o,a=!1){const i=this.getBrowserName().toLowerCase();let n=o.toLowerCase();const s=ni.getBrowserTypeByAlias(n);return a&&s&&(n=s.toLowerCase()),n===i}compareVersion(o){let a=[0],i=o,n=!1;const s=this.getBrowserVersion();if(typeof s=="string")return o[0]===">"||o[0]==="<"?(i=o.substr(1),o[1]==="="?(n=!0,i=o.substr(2)):a=[],o[0]===">"?a.push(1):a.push(-1)):o[0]==="="?i=o.substr(1):o[0]==="~"&&(n=!0,i=o.substr(1)),a.indexOf(ni.compareVersions(s,i,n))>-1}isOS(o){return this.getOSName(!0)===String(o).toLowerCase()}isPlatform(o){return this.getPlatformType(!0)===String(o).toLowerCase()}isEngine(o){return this.getEngineName(!0)===String(o).toLowerCase()}is(o,a=!1){return this.isBrowser(o,a)||this.isOS(o)||this.isPlatform(o)}some(o=[]){return o.some(a=>this.is(a))}}/*!
5 * Bowser - a browser detector
6 * https://github.com/lancedikson/bowser
7 * MIT License | (c) Dustin Diaz 2012-2015
8 * MIT License | (c) Denis Demchenko 2015-2019
9 */class D0{static getParser(o,a=!1){if(typeof o!="string")throw new Error("UserAgent should be a string");return new k$(o,a)}static parse(o){return new k$(o).getResult()}static get BROWSER_MAP(){return LK}static get ENGINE_MAP(){return Ex}static get OS_MAP(){return ap}static get PLATFORMS_MAP(){return Kc}}const tfe=["mobile","tablet","tv"];class cp{constructor(o,a){this.majorVersion=o,this.minorVersion=a}static compareSubVersions(o,a){let i=o,n=a;

9if(typeof o=="string"){if(o==="*")return 0;i=parseInt(o)}if(typeof a=="string"){if(a==="*")return 0;n=parseInt(a)}const s=Math.sign(i-n);return console.assert(!isNaN(s)),s}isGreaterThan(o){const a=cp.compareSubVersions(this.majorVersion,o.majorVersion),i=cp.compareSubVersions(this.minorVersion,o.minorVersion);return a<0?!1:a>0?!0:i>0}isEqualTo(o){const a=cp.compareSubVersions(this.majorVersion,o.majorVersion),i=cp.compareSubVersions(this.minorVersion,o.minorVersion);return a==0&&i==0}isLessThan(o){return!this.isGreaterThan(o)&&!this.isEqualTo(o)}toString(){const o=parseInt(this.majorVersion.toString()),a=parseInt(this.minorVersion.toString());return isNaN(a)?o.toString():o.toString()+"."+a.toString()}}class zK{static getMinVersion(o){var a;return(a=this.minVersions.find(i=>i.browser.toLowerCase()===o.toLowerCase()))==null?void 0:a.version}static getSupportedBrowsers(){return this.minVersions}static isVersionExempted(o,a,i){return this.exceptions.filter(n=>n.browser.toLowerCase()==o.toLowerCase()).filter(n=>n.os.toLowerCase()==i.toLowerCase()).filter(n=>n.version.isEqualTo(a)).length>0}static isVersionAtLeastMin(o,a){return this.minVersions.filter(i=>i.browser==o).filter(i=>i.version.isEqualTo(a)||i.version.isLessThan(a)).length>0}static isBrowserSupported(o){return this.minVersions.filter(a=>a.browser.toLowerCase()===o.toLowerCase()).length!=0}static isVersionSupported(o,a,i){return!this.isVersionExempted(o,a,i)&&this.isVersionAtLeastMin(o,a)}static isSupported(o,a,i){throw new Error("isSupported is not implemented on this instance of CompatibilityList!")}}class eA extends zK{static isSupported(o,a,i){return navigator.bluetooth?this.isVersionSupported(o,a,i):!1}}eA.exceptions=[];eA.minVersions=[{browser:D0.BROWSER_MAP.chrome,version:new cp(56,"*")},{browser:D0.BROWSER_MAP.chromium,version:new cp(56,"*")},{browser:D0.BROWSER_MAP.edge,version:new cp(79,"*")},{browser:D0.BROWSER_MAP.opera,version:new cp(43,"*")}];class ZB extends zK{static isSupported(o,a,i){return navigator.usb?this.isVersionSupported(o,a,i):!1}}ZB.exceptions=[{browser:D0.BROWSER_MAP.chrome,version:new cp(105,"*"),os:D0.OS_MAP.ChromeOS}];ZB.minVersions=[{browser:D0.BROWSER_MAP.chrome,version:new cp(61,"*")},{browser:D0.BROWSER_MAP.chromium,version:new cp(61,"*")},{browser:D0.BROWSER_MAP.edge,version:new cp(79,"*")},{browser:D0.BROWSER_MAP.opera,version:new cp(48,"*")}];class eP{}eP.isInDevelopment=!1;class UK{static checkCompatibility(){if(localStorage.getItem("isTesting"))return{bluetooth:!0,usb:!0,platformAllowed:!0};const o=D0.getParser(window.navigator.userAgent),a=o.getBrowser().name??"unknown",i=o.getOS().name??"unknown";if(!o.getBrowserVersion())return{bluetooth:!1,usb:!1,platformAllowed:!0};const s=o.getBrowserVersion().split(".")[0],h=o.getBrowserVersion().split(".")[1],v=new cp(s,h),g=eA.isVersionSupported(a,v,i),O=ZB.isVersionSupported(a,v,i);let A=o.getPlatform().type;A==null&&(A="desktop");const S=eP.isInDevelopment||!tfe.includes(A);return{bluetooth:g,usb:O,platformAllowed:S}}}const WK={da:{"alert.micro.GATTserverInform":"Tilkobling til GATT server...","alert.micro.microBitServiceInform":"Tilkobling til Micro:bit services...","alert.micro.gettingDataInform":"Anskaffer data","alert.micro.nowConnectedInform":"Micro:bit er nu tilkoblet","alert.data.classNameLengthAlert":"Navne mÃ¥ kun bestÃ¥ af 25 tegn","alert.recording.disconnectedDuringRecording":"micro:bit frakoblede under optagelse","alert.output.GATTserverInform":"Tilkobling til GATT server...","alert.output.microBitServiceInform":"Tilkobling til Micro:bit services...","alert.output.connectingToComponents":"Anskaffer forbindelse til enkelte komponenter...","alert.output.nowConnectedInform":"Micro:bit er nu tilkoblet","alert.isRecording":"Du er i gang med at optage!","alert.isTesting":"Du er i gang med at optage!","alert.isTraining":"Du er i gang med at træne en model!","alert.isNotConnected":"Din Micro:bit skal være tilsluttet!","alert.deleteGestureConfirm":"Er du sikker pÃ¥ at du vil slette klassen ","alert.beginModelSetup":"PÃ¥begynder opsætning af model","alert.trainingModel":"Træner modellen","alert.twoGestures":"Du skal have mindst to klasser","alert.oneDataRepresentation":"Du skal have mindst en data-repræsentation","alert.recordingsPerGesture":"Du skal have mindst tre eksempler for hver klasse","content.index.heading":"Gør-det-selv machine learning","content.index.howBody":"Velkommen til 'ultra:bit datatræneren'. Eksperimentér og leg med machine learning og byg dine første machine learning-modeller – kom i gang her!","content.index.ledDescription":"25 LED lys","content.index.recordButtonDescription":'"Optag"-knap',"content.index.videoHeading":"Introvideo","content.index.videoBody":"Du kan finde en introvideo til værktøjet pÃ¥ DR's hjemmeside:","content.index.setupBody2":"Hjemmesiden benytter bluetooth, accelerometer, LED'er, knapper og lyd fra BBC micro:bit'en. For at hjemmesiden kan tilgÃ¥ disse, skal der overføres et program til BBC micro:bit'en. Det downloades første gang, du tilslutter BBC micro:bit'en med USB. Efterfølgende kan du blot tilslutte med bluetooth uden at bruge USB-kablet.","content.index.contactButton":"Kontakt os","content.index.contactBody":"Hvis du finder fejl og mangler pÃ¥ denne platform, skal du være velkommen til at skrive til os. Hvis du har andre efterspørgsler, ideer eller generel interesse, skal du være velkommen til at kontakte os. Skaberne af denne platform kan kontaktes pÃ¥:","content.index.contactMail":"[email protected]","content.index.ultrabit":"ultra:bit","content.index.acknowledgement":"Udviklet af Center for Computational Thinking og Design, Aarhus Universitet","content.data.classPlaceholderNewClass":"Klik for at ændre navnet","content.data.select":"Vælg","content.data.selected":"Valgt","content.data.record":"Optag","content.data.addD

9ata":"Tilføj data","content.data.classHelpHeader":"Klasse","content.data.classHelpBody":"En klasse beskriver en type af bevægelse. Vi kan optage eksempler af en bestemt type bevægelse og putte eksemplerne i samme klasse. Træneren kan finde mønstre i eksemplerne/dataet og bruge disse mønstre til at træne en model, der kan genkende denne type bevægelse. Flere eksmpler vil typisk reulstere i en bedre model, men overvej på hvor mange forskellige måder en bevægelse kan laves.","content.data.classification":"Klasser","content.data.data":"Data","content.data.choice":"Valg","content.data.choice.header":"Valg af klasse","content.data.choice.body":'Her vælger du, hvilken klasse du vil tilføje data til. Efter at du har valgt en klasse at tilføje data til, kan du trykke på "Optag" knappen nedenfor, eller på en af knapperne på din micro:bit for at optage et data-segment. Se billedet nedenfor.',"content.data.dataDescription":"Her kan du se din indsamlede data. Generelt vil det være en fordel at have mere data, da dette giver lærings-algoritmen mere infomration at lære ud fra.","content.data.addD

9ataNoConnection":"Du kan ikke tilføje data, uden at være tilsluttet en micro:bit","content.data.noData":"Du har ingen bevægelser at træne med. Tilføj nogle bevægelser, som du vil træne din BBC micro:bit til at genkende.","content.trainer.failure.header":"Træning mislykkedes","content.trainer.failure.body":"Træningen resulterede ikke i en brugbar model. Grunden til dette ligger sandsynligvis i dataet. Hvis dataet i forskellige klasser minder for meget om hinanden, kan dette resultere i nogle forskellige problemer i træningsprocessen, der ikke gør det muligt at træne modellen ordentligt.","content.trainer.failure.todo":"Gå tilbage til datasiden og ændr i din data.","content.model.trainModelFirstHeading":"Træn modellen først!","content.model.trainModelFirstBody":"Gå til 'Træner'-siden","content.model.classification.helpHeading":"Sandsynligheds-meteret","content.model.classification.helpBody":"For hver forudsigelse, vil modellen producere et procent-tal, der beskriver hvor sikker modellen er i sin fordusigelse. Dette meter går fra 0% til 100%. Med slideren ved siden af, kan du bestemme grænsen for, hvor sikker modellen skal være i sin forudsigelse for at lave et output (fx afspille en lyd)","content.model.output.affect":"Påvirk","content.model.output.optionPin":"Pin","content.model.output.optionSound":"Lyd","content.model.output.soundOptionCongratulations":"Tillykke","content.model.output.soundOptionHighPitchBeep":"Højtone Bip","content.model.output.soundOptionLowPitchBeep":"Lavtone Bip","content.model.output.soundOptionLoser":"Taber","content.model.output.soundOptionMistake":"Fejl","content.model.output.soundOptionHugeMistake":"Kæmpe fejl","content.model.output.prediction.iconTitle":"Forudsigelse","content.model.output.prediction.descriptionTitle":"Forudsigelse","content.model.output.prediction.descriptionBody":"Her kan du se, hvilken klasse din model forudsiger den nuværende bevægelse til at være. Du kan se i meteret hvor sikker modellen er i sin forudsigelse.","content.model.output.ledOutput.descriptionTitle":"LED output","content.model.output.ledOutput.descriptionBody":"Her kan du vælge, hvordan LED-lysene på din output-micro:bit skal opføre sig, når din model forudsiger en klasse. Prøv at tegne nogle mønstre nedenfor og se, hvordan disse mønstre vises på din output-micro:bit, når du bevæger input-micro:bit'en.","content.model.output.sound.iconTitle":"Lyd","content.model.output.sound.descriptionTitle":"Afspilling af lyd","content.model.output.sound.descriptionBody":"Her kan du vælge hvilken lyd din output-micro:bit skal afspille, når din model laver en forudsigelse. Bemærk at lyden afspilles af din computer, hvis du har en micro:bit version 1.","content.model.output.popup.header":"Tilslut output-micro:bit","content.model.output.popup.body":"Hvis du ikke har tilsluttet en output-micro:bit, kan du ikke se resultatet af de ændringer du laver på denne side. Tilslut nedenfor.","footer.connectButtonNotConnected":"Tilslut din BBC micro:bit","footer.disconnectButton":"Frakobl","footer.helpHeader":"Live graf","footer.helpContent":"Når du har forbundet en micro:bit kan du live se Accelerometer-data for alle tre akser på denne graf. Prøv at bevæge din forbundende micro:bit og se, hvordan den data der produceres af bevægelserne ser ud for computeren!","footer.reconnecting":"Genopretter forbindelsen. Vent venligst","menu.data.helpHeading":"Data","menu.data.helpBody":"For at træne en model til at genkende forskellige bevægelser, skal vi have gode eksempler på 'god opførsel', som vi kan vise træneren. Her kan i oprette klasser (en type bevægelse) og optage eksempler til hver klasse. Der skal være mindst 2 klasser med hver 3 eksempler før træneren kan træne en model.","menu.data.examples":"eksempler","menu.trainer.helpHeading":"Træner","menu.trainer.helpBody":"Træneren kigger på eksemplerne i klasserne og forsøger at 'lære', hvordan de forskellige klasser kan genkendes ved at finde mønstre i dataet. Her kan i træne en model, der kan genkende forskellige bevægelser.","menu.trainer.notConnected1":"Du har ikke tilkoblet en BBC micro:bit.","menu.trainer.notConnected2":"Gør dette vha. knappen nedenfor","menu.trainer.notEnoughDataHeader1":`Ikke nok data!
10Gå til Data-siden`,"menu.trainer.notEnoughDataInfoBody":"Der er brug for minimum 2 klasser med 3 eksempler i hver for at kunne træne en model.","menu.trainer.notEnoughDataInfo":"Du har ikke indsamlet nok data til at træne en model. Der er brug for minimum 2 klasser med 3 eksempler i hver. Gå til Data-siden for at indsamle mere data","menu.trainer.trainModelButton":"Træn model","menu.trainer.trainNewModelButton":"Træn en ny model","menu.trainer.TrainingFinished":"Træning færdig","menu.trainer.TrainingFinished.body":"Gå til Model-siden for at undersøge hvor godt din model virker","menu.trainer.isTrainingModelButton":"Træner model...","menu.model.helpHeading":"Model","menu.model.helpBody":"Modellen kan bruges i et interaktivt system. Her bruger vi den trænede model til at forudsige bevægelser. Du kan tilslutte endnu en micro:bit og få den til at reagere på de bevægelser du laver.","menu.model.noModel":"Ingen model","menu.model.connectOutputButton":"Tilslut output-micro:bit","menu.model.disconnect":"Frakobl output-micro:bit","popup.connectMB.main.bluetooth.subtitle":"Tilslut med Bluetooth","popup.connectMB.bluetooth.heading":"Tilslut med Bluetooth","popup.connectMB.bluetooth.cancelledConnection":"Du anullerede forbindelses-processen. Prøv igen hvis du ønsker at fortsætte.","popup.connectMB.bluetooth.step0":"Tilslut et batteri til din BBC micro:bit","popup.connectMB.bluetooth.step1":"Tegn mønstret du ser på BBC micro:bit'en","popup.connectMB.bluetooth.step2":"Tryk på knappen nedenfor.","popup.connectMB.bluetooth.step3"

10:"Vælg din BBC micro:bit og tryk 'tilslut'.","popup.connectMB.bluetooth.connect":"Tilslut","popup.connectMB.bluetooth.connecting":"Tilslutter...","popup.disconnectedWarning.input":"Din input-micro:bit mistede forbindelsen, vil du prøve igen?","popup.disconnectedWarning.output":"Din output-micro:bit mistede forbindelsen, vil du prøve igen?","popup.disconnectedWarning.reconnectButton.input":"Tilslut input igen","popup.disconnectedWarning.reconnectButton.output":"Tilslut output igen","connectMB.main.usbHeader":"DOWNLOAD PROGRAM TIL BBC MICRO:BIT","connectMB.main.btHeader":"TILSLUT DIN BBC MICRO:BIT VIA BLUETOOTH","connectMB.main.usbBody":"Hvis du ikke tidligere har downloadet programmet","connectMB.main.btBody":"Hvis du allerede har downloadet programmet","connectMB.main.connectButton":"Tilslut","connectMB.main.installButton":"Download","connectMB.output.header":"En micro:bit er allerede forbundet","connectMB.usb.header":"DOWNLOAD PROGRAM TIL BBC MICRO:BIT","connectMB.usb.body1":"Tilslut din BBC micro:bit med USB-kabel og tryk på 'næste'","connectMB.usb.body2":"Tryk 'Find USB-enhed' og vælg 'BBC micro:bit CMSIS-DAP' eller 'DAPLink CMSIS-DAP' fra popup-beskeden som kommer","connectMB.usb.button1":"Næste","connectMB.usb.button2":"Find USB-enhed","connectMB.usb.pleaseWait":"Vent venligst. Downloader program til micro:bit'en","connectMB.usb.done.body1":"Færdig - programmet er downloadet.","connectMB.usb.done.body2":"Du kan nu tilkoble dig via bluetooth.","connectMB.usb.done.body3":"Hvis du har et batteri til din micro:bit kan du nu tage usb-kablet ud og tilslutte batteriet i stedet.","connectMB.usb.done.body4":"Hvis du ikke har et batteri kan du fortsætte med at give din micro:bit strøm igennem usb-kablet.","connectMB.usb.manual.header":"Overfør fil til din BBC microbit","connectMB.usb.manual.manualDownload":"Hvis filen ikke downloadede automatisk tryk","connectMB.usb.manual.manualDownloadLink":"her","connectMB.usb.manual.done":"Færdig: Tilslut med bluetooth","connectMB.outputMB.same":"Brug samme BBC micro:bit","connectMB.outputMB.different":"Tilslut anden BBC micro:bit","connectMB.outputMB.sameButton":"Samme","connectMB.outputMB.otherButton":"Anden","cookies.banner.title":"Cookie politik","cookies.banner.subtitle":"Forbrug og analyse","cookies.banner.text.pleaseHelp":"Hjælp os med at forbedre siden! Tillad cookies for at hjælpe os.","cookies.banner.text.description":"Her hos ML-Machine bruger vi cookies for at indsamle information omkring forbrug af siden. Uden disse cookies er vi ikke i stand til at se hvordan vores side bliver brugt.","cookies.banner.text.readMore":"Du kan læse mere omkring vores cookie politik ","cookies.banner.text.readMore.here":"her","cookies.banner.buttons.reject":"Afvis","cookies.banner.buttons.accept":"Accepter","cookies.overlay.title":"Cookie politik","cookies.overlay.question.whatAreCookies":"Hvad er cookies?","cookies.overlay.question.ourReasoning":"Hvad bruger vi cookies til?","cookies.overlay.question.storageDuration":"Hvor lang tid gemmer vi cookies?","cookies.overlay.question.deleting":"Hvordan sletter man cookies?","cookies.overlay.question.consentChange":"Hvordan ændrer jeg mit samtykke?","cookies.overlay.answer.whatAreCookies":"Cookies er små filer med informationer, som der bliver gemt på den enhed du bruger til at browse med. Det er ikke programmer, som kan indeholder malware eller vira.","cookies.overlay.answer.ourReasoning":"Vi bruger cookies for at indsamle information omkring forbrug af siden. Uden disse cookies er vi ikke i stand til at se hvordan vores side bliver brugt. Du gør derfor os en stor tjeneste ved at give samtykke til cookies.","cookies.overlay.answer.storageDuration":"Det varier fra side til side og udnyttelsen af cookie'en. Nogle cookies bliver gemt indtil du forlader siden, andre bliver gemt i længere perioder. Alle vores cookies bliver gemt i et år.","cookies.overlay.answer.deleting":"Det er forskelligt fra browser til browser. Her er dog en liste af manualer til de mest populære browsere.","cookies.overlay.answer.consentChange":"På nuværende tidspunkt har du endnu ikke givet samtykke, men når du gør kan du blot slette din cookie, hvis du ønsker at trække samtykke tilbage eller på andenvis ombestemmer dig.","cookies.overlay.table.title":"Cookies som vi bruger","cookies.overlay.table.header.description":"Beskrivelse","cookies.overlay.table.row.ai_user.description":"Brugt af Microsoft Application Insights til at indsamle statistisk data omkring forbrug. Den gemmer derudover et unik identifikationsnummer, som bruges til at genkende dig næste gang du amkommer på siden. Den gemmer ikke noget personligt omkring dig, og genererer et identifikationsnummer tilfældigt.","cookies.overlay.table.row.ai_session.description":"Gemmer dit nuværende besøg, så vi kan genke

10nde dig pÃ¥ tværs af vores sider.","cookies.overlay.table.row.cookie_consent.description":"Gemmer dine samtykkevalg af vores cookie politik.","popup.compatibility.bluetooth.header":"Browser ikke understøttet!","popup.compatibility.bluetooth.explain":"Din nuværende browser understøtter ikke bluetooth. Bluetooth bruges til at drive siden. Uden det virker den ikke.","popup.compatibility.bluetooth.advice":"Sikre at din browser er opdateret. Ellers kan du vælge en af de nedestÃ¥ende browsere, som understøtter bluetooth.","popup.connectMB.USBCompatibility.transferStep.step1":"Åben placering af den firmware fil du lige har downloadet. Den findes oftest i din download mappe.","popup.connectMB.USBCompatibility.transferStep.step2":"Træk filen over i micro:bit'en gennem din computers stifinder.","popup.connectMB.USBCompatibility.transferStep.step3":"NÃ¥r overførslen er færdig, kan du tilslutte din micro:bit med Bluetooth.","compatibility.platform.notSupported":"Værktøjet er ikke understøttet pÃ¥ mobil.","compatibility.platform.notSupported.joinDesktop":"Vi ses pÃ¥ computer."},en:{"alert.micro.GATTserverInform":"Connecting to GATT server...","alert.micro.microBitServiceInform":"Connecting to Micro:bit services...","alert.micro.gettingDataInform":"Getting data","alert.micro.nowConnectedInform":"Micro:bit is now connected","alert.data.classNameLengthAlert":"Names must consists of maximum 25 characters.","alert.recording.disconnectedDuringRecording":"micro:bit disconnected during recording","alert.output.GATTserverInform":"Connecting to GATT server...","alert.output.microBitServiceInform":"Connecting to Micro:bit services...","alert.output.connectingToComponents":"Establishing connections to separate components...","alert.output.nowConnectedInform":"Micro:bit is connected","alert.isRecording":"You are currently recording!","alert.isTesting":"You are currently recording!","alert.isTraining":"You are currently training a model!","alert.isNotConnected":"Your Micro:bit should be connected!","alert.deleteGestureConfirm":"Are you sure you want to delete the class ","alert.beginModelSetup":"Initiating model setup","alert.trainingModel":"Training the model","alert.twoGestures":"You need at least two classes","alert.oneDataRepresentation":"You need at least one data representation","alert.recordingsPerGesture":"You need at least three examples per class","content.index.heading":"Do It Yourself Machine Learning","content.index.howBody":"Welcome to the ultra:bit data trainer. Experiment and play with machine larning and build your first machine learning models - start here!","content.index.ledDescription":"25 LED lights","content.index.recordButtonDescription":'"Record"-button',"content.index.videoHeading":"Intro Video","content.index.videoBody":"You can find an intro video to the tool on DR's wepage:","content.index.setupBody2":"The website utilizes the bluetooth, accelerometer, LEDs, buttons, and sounds from the Micro:bit. Subsequetnly, you can connect the micro:bit to your computer via bluetooth without using the USB cable.","content.index.contactButton":"Contact us","content.index.contactBody":"If you find errors and omissions on this platform, please feel free to write us. If you have any other requests, ideas or general interests, please feel free to contact us. The creators of this platform can be contacted at:","content.index.contactMail":"[email protected]","content.index.ultrabit":"ultra:bit","content.index.acknowledgement":"Developed by Center for Computational Thinking and Design, Aarhus University","content.data.classPlaceholderNewClass":"Press here to change name","content.data.select":"Select","content.data.selected":"Selected","content.data.record":"Record","content.data.addD

10ata":"Add Data","content.data.classHelpHeader":"Class","content.data.classHelpBody":"A class describes a type of gesture. We can record examples of a certain type of gesture and put the examples in the same class. The trainer can find patterns in the examples/data and use these patterns to 'train' a model that can recognize this class of gestures. Multiple examples will typically result in a better model, and consider how many different ways a gesture can be performed.","content.data.classification":"Classes","content.data.data":"Data","content.data.choice":"Choice","content.data.choice.header":"Choice of class","content.data.choice.body":'Here, you choose which class you want to add data to. After having selected a class, you can either press the "Record" button below or press one of the buttons on your micro:bit to record a data segment. See the picture below.',"content.data.dataDescription":"Here you can see the gathered data. ","content.data.addDataNoConnection":"You cannot add data without being connected with a micro:bit","content.data.noData":"You do not have any gestures to train on. Add the gestures you wish the micro:bit should learn to recognise.","content.trainer.failure.header":"Training Failed","content.trainer.failure.body":"The training did not result in a useable model. The reason for this is most likely the data used for training. If the data for different classes are too similar, this can result in issues in the training process.","content.trainer.failure.todo":"Return to the data page and change your data.","content.model.trainModelFirstHeading":"Train the model first!","content.model.trainModelFirstBody":"Go to the 'Trainer' page","content.model.classification.helpHeading":"Probabil-ometer","content.model.classification.helpBody":"For each prediction you make, the model will produce a percentage that describes how confident the model is in its prediction. This meter goes from 0% to 100%. With the slider next to it, you can determine the limit of how certain the model should be in its preduction to make an output (e.g. play a sound)","content.model.output.affect":"Affect","content.model.output.optionPin":"Pin","content.model.output.optionSound":"Sound","content.model.output.soundOptionCongratulations":"Congratulations","content.model.output.soundOptionHighPitchBeep":"High pitch beep","content.model.output.soundOptionLowPitchBeep":"Low pitch beep","content.model.output.soundOptionLoser":"Loser","content.model.output.soundOptionMistake":"Mistake","content.model.output.soundOptionHugeMistake":"Huge Mistake","content.model.output.prediction.iconTitle":"Prediction","content.model.output.prediction.descriptionTitle":"Prediction","content.model.output.prediction.descriptionBody":"Here you can see the model's prediction of the current gesture. In the meter, you can see how confident the model is in the prediction.","content.model.output.ledOutput.descriptionTitle":"LED output","content.model.output.ledOutput.descriptionBody":"Here you can choose how the LEDs on your output micro:bit behaves when your model makes predictions. Try draw some patterns and see how they show on the output micro:bit when you move the input micro:bit.","content.model.output.sound.iconTitle":"Sound","content.model.output.sound.descriptionTitle":"Playback of sound","content.model.output.sound.descriptionBody":"Here you can choose which sound you output micro:bit plays when the model makes a prediction. Be aware that the sound plays from your computer if you have a micro:bit version 1.","content.model.output.popup.header":"Connect output micro:bit","content.model.output.popup.body":"If you have not connected an output micro:bit, you cannot see the results of the changed made on this page. Use the connect button below","footer.connectButtonNotConnected":"Connect your micro:bit","footer.disconnectButton":"Disconnect","footer.helpHeader":"Live graph","footer.helpContent":"Once you have connected a micro:bit you can watch the accelerometer data for all three axes on this graph in real time. Try moving your connected micro:bit to see what the data looks like to your computer!","footer.reconnecting":"Reconnecting. Please wait","menu.data.helpHeading":"Data","menu.data.helpBody":"In order to train a model to recognize different movements, we need good examples of 'good behavior' that we can show the Trainer. Here you can create classes (types of gestures) and record examples for each class. There must be at least 2 classes with 3 examples each before the trainer can train a model.","menu.data.examples":"examples","menu.trainer.helpHeading":"Trainer","menu.trainer.helpBody":"The Trainer looks at the examples in each of the classes and tries to 'learn' how the different classes can be recognized by searching for patterns in the data. Here you can train a model to recognize different gestures.","menu.trainer.notConnected1":"You have not connected a micro:bit.","menu.trainer.notConnected2":" Please do so via the button below","menu.trainer.notEnoughDataHeader1":`Not Enough Data
11Go to Data page`,"menu.trainer.notEnoughDataInfoBody":"You need at least 2 classes with 3 examples each to attempt to train a model.","menu.trainer.notEnoughDataInfo":"You have not collected enough data to train a model. You need at least 2 classes with 3 examples each. Please go to the Data page to collect more data","menu.trainer.trainModelButton":"Train model","menu.trainer.trainNewModelButton":"Train a new model","menu.trainer.TrainingFinished":"Training done","menu.trainer.TrainingFinished.body":"Go to the Model-page to examine how well your model works","menu.trainer.isTrainingModelButton":"Training model","menu.model.helpHeading":"Model","menu.model.helpBody":"The model can be used in an interactive system. Here we use the trained model to predict gestures. You can connect another micro:bit and make it respond to the predicted gestures.","menu.model.noModel":"No model","menu.model.connectOutputButton":"Connect output micro:bit","menu.model.disconnect":"Disconnect output micro:bit","popup.connectMB.main.bluetooth.subtitle":"Connect using Bluetooth","popup.connectMB.bluetooth.heading":"Connect using Bluetooth","popup.connectMB.bluetooth.cancelledConnection":"You cancelled the connection process. Try again, if you wish to proceed.","popup.connectMB.bluetooth.step0":"Connect your micro:bit to a battery","popup.connectMB.bluetooth.step1":"Draw the pattern as displayed on the micro:bit","popup.connectMB.bluetooth.step2":"Press the 'Connect' button below.","popup.connectMB.bluetooth.step3"

11:"Select your micro:bit and press 'Connect'.","popup.connectMB.bluetooth.connect":"Connect","popup.connectMB.bluetooth.connecting":"Connecting...","popup.disconnectedWarning.input":"Your input micro:bit lost connection, do want to try again?","popup.disconnectedWarning.output":"Your output micro:bit lost connection, do want to try again?","popup.disconnectedWarning.reconnectButton.input":"Reconnect input","popup.disconnectedWarning.reconnectButton.output":"Reconnect output","connectMB.main.usbHeader":"DOWNLOAD PROGRAM TO MICRO:BIT","connectMB.main.btHeader":"CONNECT YOUR MICRO:BIT USING BLUETOOTH","connectMB.main.usbBody":"If you have not previously downloaded the program","connectMB.main.btBody":"If you have already downloaded the program","connectMB.main.connectButton":"Connect","connectMB.main.installButton":"Download","connectMB.output.header":"A micro:bit is already connected","connectMB.usb.header":"DOWNLOAD PROGRAM TO MICRO:BIT","connectMB.usb.body1":"Connect your micro:bit using a USB-cable and click 'Next'","connectMB.usb.body2":"Click 'Find USB unit' and select 'BBC micro:bit CMSIS-DAP' or 'DAPLink CMSIS-DAP' from the popup that appears","connectMB.usb.button1":"Next","connectMB.usb.button2":"Find USB unit","connectMB.usb.pleaseWait":"Please wait. Downloading program to the micro:bit","connectMB.usb.done.body1":"Done - the program has been downloaded.","connectMB.usb.done.body2":"You can now connect through bluetooth.","connectMB.usb.done.body3":"If you have a battery for the micro:bit, you can now remove the usb-cable and use the battery instead.","connectMB.usb.done.body4":"If you do not have a battery for the micro:bit, you can simply keep powering it through the usb cable.","connectMB.usb.manual.header":"Transfer file to your micro:bit","connectMB.usb.manual.manualDownload":"If the file did not automatically download press","connectMB.usb.manual.manualDownloadLink":"here","connectMB.usb.manual.done":"Done: Connect using bluetooth","connectMB.outputMB.same":"Use the same micro:bit","connectMB.outputMB.different":"Connect another micro:bit","connectMB.outputMB.sameButton":"Same","connectMB.outputMB.otherButton":"Other","cookies.banner.title":"Cookie policy","cookies.banner.subtitle":"Performance & analytics","cookies.banner.text.pleaseHelp":"Please help us make it better by keeping the cookies enabled.","cookies.banner.text.description":"Here at ML-Machine we use cookies to collect information on the usage and performance of the website. Without these cookies, we will not be able to collect vital information on the performance of the site.","cookies.banner.text.readMore":"You can read more about it ","cookies.banner.text.readMore.here":"here","cookies.banner.buttons.reject":"Reject","cookies.banner.buttons.accept":"Accept","cookies.overlay.title":"Cookie policy","cookies.overlay.question.whatAreCookies":"What are cookies?","cookies.overlay.question.ourReasoning":"What do we use cookies for?","cookies.overlay.question.storageDuration":"For how long are cookies stored?","cookies.overlay.question.deleting":"How do i delete cookies?","cookies.overlay.question.consentChange":"How do i change my consent?","cookies.overlay.answer.whatAreCookies":"Cookies are small data files stored on the device you are using to browse websites. They are not programs, that contain harmful malware or viruses.","cookies.overlay.answer.ourReasoning":"We use cookies to collect information on the usage and performance of the website. Without these cookies, we will not be able to collect vital information on the performance of the site.","cookies.overlay.answer.storageDuration":"It varies from site to site and the usage of the cookie. Some may be stored for only the current session, while others may be stored for days. Our cookies are stored for one year.","cookies.overlay.answer.deleting":"It varies from browser to browser. However here are some of the manuals for some of the most commonly used browsers.","cookies.overlay.answer.consentChange":"Currently, you have not rejected nor agreed to our cookie policy. But once you do, you will be able to delete cookies to change your consent at any time.","cookies.overlay.table.title":"The cookies we use","cookies.overlay.table.header.description":"Description","cookies.overlay.table.row.ai_user.description":"Used by Microsoft Application Insights software to collect statistical usage and telemetry information. The cookie stores a unique identifier to recognise users on returning visits over time.","cookies.overlay.table.row.ai_session.description":"Preserves users states across page requests.","cookies.overlay.table.row.cookie_consent.description":"Stores the terms to which you have given consent to in regards to our cookie policy.","popup.compatibility.bluetooth.header":"Bluetooth incompatible browser!","popup.compatibility.bluetooth.explain":"The browser you are currently using does not support bluetooth.","popup.compatibility.bluetooth.advice":"Please update the browser or use another one from our supported browsers list below.","popup.connectMB.USBCompatibility.transferStep.step1":"Open the location to which the firmware was downloaded. Most commonly found in your download folder.","popup.connectMB.USBCompatibility.transferStep.step2":"Drag the file onto the micro:bit on your computer's file explorer.","popup.connectMB.USBCompatibility.transferStep.step3"

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12 * @license
13 * Copyright 2020 Google LLC. All Rights Reserved.
14 * Licensed under the Apache License, Version 2.0 (the "License");
15 * you may not use this file except in compliance with the License.
16 * You may obtain a copy of the License at
17 *
18 * http://www.apache.org/licenses/LICENSE-2.0
19 *
20 * Unless required by applicable law or agreed to in writing, software
21 * distributed under the License is distributed on an "AS IS" BASIS,
22 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
23 * See the License for the specific language governing permissions and
24 * limitations under the License.
25 * =============================================================================
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this.throwIfDisposed(),Ft.mul(this,m)},_.prototype.mulStrict=function(m){return this.throwIfDisposed(),Ft.mulStrict(this,m)},_.prototype.floorDiv=function(m){return this.throwIfDisposed(),Ft.floorDiv(this,m)},_.prototype.divStrict=function(m){return this.throwIfDisposed(),Ft.divStrict(this,m)},_.prototype.minimum=function(m){return this.throwIfDisposed(),Ft.minimum(this,m)},_.prototype.minimumStrict=function(m){return this.throwIfDisposed(),Ft.minimumStrict(this,m)},_.prototype.maximum=function(m){return this.throwIfDisposed(),Ft.maximum(this,m)},_.prototype.maximumStrict=function(m){return this.throwIfDisposed(),Ft.maximumStrict(this,m)},_.prototype.mod=function(m){return this.throwIfDisposed(),Ft.mod(this,m)},_.prototype.modStrict=function(m){return this.throwIfDisposed(),Ft.modStrict(this,m)},_.prototype.squaredDifferenceStrict=function(m){return this.throwIfDisposed(),Ft.squaredDifferenceStrict(this,m)},_.prototype.notEqual=function(m){return this.throwIfDisposed(),Ft.notEqual(this,m)},_.prototype.notEqualStrict=function(m){return this.throwIfDisposed(),Ft.notEqualStrict(this,m)},_.prototype.less=function(m){return this.throwIfDisposed(),Ft.less(this,m)},_.prototype.lessStrict=function(m){return this.throwIfDisposed(),Ft.lessStrict(this,m)},_.prototype.equal=function(m){return this.throwIfDisposed(),Ft.equal(this,m)},_.prototype.equalStrict=function(m){return this.throwIfDisposed(),Ft.equalStrict(this,m)},_.prototype.lessEqual=function(m){return this.throwIfDisposed(),Ft.lessEqual(this,m)},_.prototype.lessEqualStrict=function(m){return this.throwIfDisposed(),Ft.lessEqualStrict(this,m)},_.prototype.greater=function(m){return this.throwIfDisposed(),Ft.greater(this,m)},_.prototype.greaterStrict=function(m){return this.throwIfDisposed(),Ft.greaterStrict(this,m)},_.prototype.greaterEqual=function(m){return this.throwIfDisposed(),Ft.greaterEqual(this,m)},_.prototype.greaterEqualStrict=function(m){return this.throwIfDisposed(),Ft.greaterEqualStrict(this,m)},_.prototype.logicalAnd=function(m){return this.throwIfDisposed(),Ft.logicalAnd(this,m)},_.prototype.logicalOr=function(m){return this.throwIfDisposed(),Ft.logicalOr(this,m)},_.prototype.logicalNot=function(){return this.throwIfDisposed(),Ft.logicalNot(this)},_.prototype.logicalXor=function(m){return this.throwIfDisposed(),Ft.logicalXor(this,m)},_.prototype.where=function(m,f){return this.throwIfDisposed(),Ft.where(m,this,f)},_.prototype.neg=function(){return this.throwIfDisposed(),Ft.neg(this)},_.prototype.ceil=function(){return this.throwIfDisposed(),Ft.ceil(this)},_.prototype.floor=function(){return this.throwIfDisposed(),Ft.floor(this)},_.prototype.sign=function(){return this.throwIfDisposed(),Ft.sign(this)},_.prototype.isNaN=function(){return this.throwIfDisposed(),Ft.isNaN(this)},_.prototype.isInf=function(){return this.throwIfDisposed(),Ft.isInf(this)},_.prototype.isFinite=function(){return this.throwIfDisposed(),Ft.isFinite(this)},_.prototype.exp=function(){return this.throwIfDisposed(),Ft.exp(this)},_.prototype.expm1=function(){return this.throwIfDisposed(),Ft.expm1(this)},_.prototype.log=function(){return this.throwIfDisposed(),Ft.log(this)},_.prototype.log1p=function(){return this.throwIfDisposed(),Ft.log1p(this)},_.prototype.sqrt=function(){return this.throwIfDisposed(),Ft.sqrt(this)},_.prototype.rsqrt=function(){return this.throwIfDisposed(),Ft.rsqrt(this)},_.prototype.square=function(){return this.throwIfDisposed(),Ft.square(this)},_.prototype.reciprocal=function(){return this.throwIfDisposed(),Ft.reciprocal(this)},_.prototype.abs=function(){return this.throwIfDisposed(),Ft.abs(this)},_.prototype.clipByValue=function(m,f){return this.throwIfDisposed(),Ft.clipByValue(this,m,f)},_.prototype.relu=function(){return this.throwIfDisposed(),Ft.relu(this)},_.prototype.relu6=function(){return this.throwIfDisposed(),Ft.relu6(this)},_.prototype.elu=function(){return this.throwIfDisposed(),Ft.elu(this)},_.prototype.selu=function(){return this.throwIfDisposed(),Ft.selu(this)},_.prototype.leakyRelu=function(m){return m===void 0&&(m=.2),this.throwIfDisposed(),Ft.leakyRelu(this,m)},_.prototype.prelu=function(m){return this.throwIfDisposed(),Ft.prelu(this,m)},_.prototype.sigmoid=function(){return this.throwIfDisposed(),Ft.sigmoid(this)},_.prototype.logSigmoid=function(){return this.throwIfDisposed(),Ft.logSigmoid(this)},_.prototype.softplus=function(){return this.throwIfDisposed(),Ft.softplus(this)},_.prototype.zerosLike=function(){return this.throwIfDisposed(),Ft.zerosLike(this)},_.prototype.onesLike=function(){return this.throwIfDisposed(),Ft.onesLike(this)},_.prototype.sin=function(){return this.throwIfDisposed(),Ft.sin(this)},_.prototype.cos=function(){return this.throwIfDisposed(),Ft.cos(this)},_.prototype.tan=function(){return this.throwIfDisposed(),Ft.tan(this)},_.prototype.asin=function(){return this.throwIfDisposed(),Ft.asin(this)},_.prototype.acos=function(){return this.throwIfDisposed(),Ft.acos(this)},_.prototype.atan=function(){return this.throwIfDisposed(),Ft.atan(this)},_.prototype.sinh=function(){return this.throwIfDisposed(),Ft.sinh(this)},_.prototype.cosh=function(){return this.throwIfDisposed(),Ft.cosh(this)},_.prototype.tanh=function(){return this.throwIfDisposed(),Ft.tanh(this)},_.prototype.asinh=function(){return this.throwIfDisposed(),Ft.asinh(this)},_.prototype.acosh=function(){return this.throwIfDisposed(),Ft.acosh(this)},_.prototype.atanh=function(){return this.throwIfDisposed(),Ft.atanh(this)},_.prototype.erf=function(){return this.throwIfDisposed(),Ft.erf(this)},_.prototype.round=function(){return this.throwIfDisposed(),Ft.round(this)},_.prototype.step=function(m){return m===void 0&&(m=0),this.throwIfDisposed(),Ft.step(this,m)},_.prototype.softmax=function(m){return m===void 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Function}}),function(_){_.R0="R0",_.R1="R1",_.R2="R2",_.R3="R3",_.R4="R4",_.R5="R5",_.R6="R6"}(_e||(_e={})),function(_){_.float32="float32",_.int32="int32",_.bool="int32",_.complex64="complex64"}(ge||(ge={})),function(_){_.float32="float32",_.int32="int32",_.bool="bool",_.complex64="complex64"}(Ae||(Ae={})),function(_){_.float32="float32",_.int32="float32",_.bool="float32",_.complex64="complex64"}(Ie||(Ie={})),function(_){_.float32="complex64",_.int32="complex64",_.bool="complex64",_.complex64="complex64"}(it||(it={}));var Jt={float32:Ie,int32:ge,bool:Ae,complex64:it};function kn(_,m){if(_==="string"||m==="string"){if(_==="string"&&m==="string")return"string";throw new Error("Can not upcast "+_+" with "+m)}return Jt[_][m]}function rr(_){return kn(_,"int32")}function Bn(_,m){if(_.dtype===m.dtype)return[_,m];var f=kn(_.dtype,m.dtype);return[_.cast(f),m.cast(f)]}function Gn(_,m){Ee(_.dtype===m.dtype,function(){return"The dtypes of the first("+_.dtype+") and second("+m.dtype+") input must match"})}function Zn(_){var m=[];return function f(y,E,z){if(y!=null){if(y instanceof Zt)E.push(y);else if(Y=y,Array.isArray(Y)||typeof Y=="object"){var Y,Z=y;for(var le in Z){var de=Z[le];z.has(de)||(z.add(de),f(de,E,z))}}}}(_,m,new Set),m}var Gt,Wt=Object.freeze({makeTypesMatch:Bn,assertTypesMatch:Gn,isTensorInList:function(_,m){return m.some(function(f){return f.id===_.id})},getTensorsInContainer:Zn}),Sn=function(){function _(){this.registeredVariables={},this.nextTapeNodeId=0,this.numBytes=0,this.numTensors=0,this.numStringTensors=0,this.numDataBuffers=0,this.gradientDepth=0,this.kernelDepth=0,this.scopeStack=[],this.numDataMovesStack=[],this.nextScopeId=0,this.tensorInfo=new WeakMap,this.profiling=!1,this.activeProfile={newBytes:0,newTensors:0,peakBytes:0,kernels:[],result:null}}return _.prototype.dispose=function(){for(var m in this.registeredVariables)this.registeredVariables[m].dispose()},_}(),un=function(){function _(m){this.ENV=m,this.registry={},this.registryFactory={},this.pendingBackendInitId=0,this.state=new Sn}return _.prototype.ready=function(){return S(this,void 0,void 0,function(){var m,f,y;return M(this,function(E){switch(E.label){case 0:if(this.pendingBackendInit!=null)return[2,this.pendingBackendInit.then(function(){})];if(this.backendInstance!=null)return[2];m=this.getSortedBackends(),f=0,E.label=1;case 1:return f<m.length?(y=m[f],[4,this.initializeBackend(y).success]):[3,5];case 2:return E.sent()?[4,this.setBackend(y)]:[3,4];case 3:return E.sent(),[2];case 4:return f++,[3,1];case 5:throw new Error("Could not initialize any backends, all backend initializations failed.")}})})},Object.defineProperty(_.prototype,"backend",{get:function(){if(this.pendingBackendInit!=null)throw new Error("Backend '"+this.backendName+"' has not yet been initialized. Make sure to await tf.ready() or await tf.setBackend() before calling other methods");if(this.backendInstance==null){var m=this.initializeBackendsAndReturnBest(),f=m.name;if(m.asyncInit)throw new Error("The highest priority backend '"+f+"' has not yet been initialized. Make sure to await tf.ready() or await tf.setBackend() before calling other methods");this.setBackend(f)}return this.backendInstance},enumerable:!0,configurable:!0}),_.prototype.backendNames=function(){return Object.keys(this.registryFactory)},_.prototype.findBackend=function(m){return!(m in this.registry)&&(!(m in this.registryFactory)||this.initializeBackend(m).asyncInit)?null:this.registry[m]},_.prototype.findBackendFactory=function(m){return m in this.registryFactory?this.registryFactory[m].factory:null},_.prototype.registerBackend=function(m,f,y){return y===void 0&&(y=1),m in this.registryFactory?(console.warn(m+" backend was already registered. Reusing existi

30ng backend factory."),!1):(this.registryFactory[m]={factory:f,priority:y},!0)},_.prototype.setBackend=function(m){return S(this,void 0,void 0,function(){var f,y,E;return M(this,function(z){switch(z.label){case 0:if(this.registryFactory[m]==null)throw new Error("Backend name '"+m+"' not found in registry");return this.backendName=m,this.registry[m]!=null?[3,4]:(this.backendInstance=null,f=this.initializeBackend(m),y=f.success,f.asyncInit?[4,y]:[3,2]);case 1:return E=z.sent(),[3,3];case 2:E=y,z.label=3;case 3:if(!E)return[2,!1];z.label=4;case 4:return this.backendInstance=this.registry[m],this.setupRegisteredKernels(),this.profiler=new ci(this.backendInstance),[2,!0]}})})},_.prototype.setupRegisteredKernels=function(){var m=this;re(this.backendName).forEach(function(f){f.setupFunc!=null&&f.setupFunc(m.backendInstance)})},_.prototype.disposeRegisteredKernels=function(m){var f=this;re(m).forEach(function(y){y.disposeFunc!=null&&y.disposeFunc(f.registry[m])})},_.prototype.initializeBackend=function(m){var f=this,y=this.registryFactory[m];if(y==null)throw new Error("Cannot initialize backend "+m+", no registration found.");try{var E=y.factory();if(Promise.resolve(E)===E){var z=++this.pendingBackendInitId,Y=E.then(function(Z){return!(z<f.pendingBackendInitId||(f.registry[m]=Z,f.pendingBackendInit=null,0))}).catch(function(Z){return!(z<f.pendingBackendInitId||(f.pendingBackendInit=null,console.warn("Initialization of backend "+m+" failed"),console.warn(Z.stack||Z.message),1))});return this.pendingBackendInit=Y,{success:Y,asyncInit:!0}}return this.registry[m]=E,{success:!0,asyncInit:!1}}catch(Z){return console.warn("Initialization of backend "+m+" failed"),console.warn(Z.stack||Z.message),{success:!1,asyncInit:!1}}},_.prototype.removeBackend=function(m){if(!(m in this.registryFactory))throw new Error(m+" backend not found in registry");this.backendName===m&&this.pendingBackendInit!=null&&this.pendingBackendInitId++,m in this.registry&&(this.disposeRegisteredKernels(m),this.registry[m].dispose(),delete this.registry[m]),delete this.registryFactory[m],this.backendName===m&&(this.pendingBackendInit=null,this.backendName=null,this.backendInstance=null)},_.prototype.getSortedBackends=function(){var m=this;if(Object.keys(this.registryFactory).length===0)throw new Error("No backend found in registry.");return Object.keys(this.registryFactory).sort(function(f,y){return m.registryFactory[y].priority-m.registryFactory[f].priority})},_.prototype.initializeBackendsAndReturnBest=function(){for(var m=this.getSortedBackends(),f=0;f<m.length;f++){var y=m[f],E=this.initializeBackend(y),z=E.success,Y=E.asyncInit;if(Y||z)return{name:y,asyncInit:Y}}throw new Error("Could not initialize any backends, all backend initializations failed.")},_.prototype.moveData=function(m,f){var y=this.state.tensorInfo.get(f),E=y.backend,z=this.readSync(f);E.disposeData(f),y.backend=m,m.move(f,z,y.shape,y.dtype),this.shouldCheckForMemLeaks()&&this.state.numDataMovesStack[this.state.numDataMovesStack.length-1]++},_.prototype.tidy=function(m,f){var y,E=this,z=null;if(f==null){if(typeof m!="function")throw new Error("Please provide a function to tidy()");f=m}else{if(typeof m!="string"&&!(m instanceof String))throw new Error("When calling with two arguments, the first argument to tidy() must be a string");if(typeof f!="function")throw new Error("When calling with two arguments, the 2nd argument to tidy() must be a function");z=m}return this.scopedRun(function(){return E.startScope(z)},function(){return E.endScope(y)},function(){return(y=f())instanceof Promise&&console.error("Cannot return a Promise inside of tidy."),y})},_.prototype.scopedRun=function(m,f,y){m();try{var E=y();return f(),E}catch(z){throw f(),z}},_.prototype.nextTensorId=function(){return _.nextTensorId++},_.prototype.nextVariableId=function(){return _.nextVariableId++},_.prototype.clone=function(m){var f=this.makeTensorFromDataId(m.dataId,m.shape,m.dtype),y={x:m};return this.addTapeNode(this.state.activeScope.name,y,[f],function(E){return{x:function(){return E.toFloat()}}},[],{}),f},_.prototype.runKernel=function(m,f,y,E,z){return this.runKernelFunc(null,f,null,m,y,E,z)},_.prototype.shouldCheckForMemLeaks=function(){return this.ENV.getBool("IS_TEST")},_.prototype.checkKernelForMemLeak=function(m,f,y){var E=this.backend.numDataIds(),z=0;

30y.forEach(function(le){z+=le.dtype==="complex64"?3:1});var Y=this.state.numDataMovesStack[this.state.numDataMovesStack.length-1],Z=E-f-z-Y;if(Z>0)throw new Error("Backend '"+this.backendName+"' has an internal memory leak ("+Z+" data ids) after running '"+m+"'")},_.prototype.runKernelFunc=function(m,f,y,E,z,Y,Z){var le,de=this,we=[],De=this.isTapeOn();E==null&&(E=this.state.activeScope!=null?this.state.activeScope.name:"");var Ne,Fe=this.state.numBytes,Ve=this.state.numTensors;this.shouldCheckForMemLeaks()&&this.state.numDataMovesStack.push(0);var Je,Xe=J(E,this.backendName);if(Xe!=null)Ne=function(){var xt=de.backend.numDataIds();Je=Xe.kernelFunc({inputs:f,attrs:z,backend:de.backend});var kt=Array.isArray(Je)?Je:[Je];de.shouldCheckForMemLeaks()&&de.checkKernelForMemLeak(E,xt,kt);var At=kt.map(function(ln){var nn=ln.dataId,cn=ln.shape,Dn=ln.dtype;return de.makeTensorFromDataId(nn,cn,Dn)});if(De){var Lt=de.getTensorsForGradient(E,f,At);if(Lt==null){Z==null&&(Z=[]);var tn=At.filter(function(ln,nn){return Z[nn]});Lt=(Y||[]).slice().concat(tn)}we=de.saveTensorsForBackwardMode(Lt)}return At};else{var ot=function(xt){De&&(we=xt.map(function(kt){return de.keep(de.clone(kt))}))};Ne=function(){var xt=de.backend.numDataIds();Je=de.tidy(function(){return m(de.backend,ot)});var kt=Array.isArray(Je)?Je:[Je];return de.shouldCheckForMemLeaks()&&de.checkKernelForMemLeak(E,xt,kt),kt}}return this.scopedRun(function(){return de.state.kernelDepth++},function(){return de.state.kernelDepth--},function(){le=de.ENV.getBool("DEBUG")?de.profiler.profileKernel(E,f,function(){return Ne()}):Ne()}),De&&this.addTapeNode(E,f,le,y,we,z),this.state.profiling&&this.state.activeProfile.kernels.push({name:E,bytesAdded:this.state.numBytes-Fe,totalBytesSnapshot:this.state.numBytes,tensorsAdded:this.state.numTensors-Ve,totalTensorsSnapshot:this.state.numTensors,inputShapes:Object.keys(f).map(function(xt){return f[xt].shape}),outputShapes:le.map(function(xt){return xt.shape})}),Array.isArray(Je)?le:le[0]},_.prototype.saveTensorsForBackwardMode=function(m){var f=this;return m.map(function(y){return f.keep(f.clone(y))})},_.prototype.getTensorsForGradient=function(m,f,y){var E=K(m);if(E!=null){var z=E.inputsToSave||[],Y=E.outputsToSave||[],Z=void 0;E.saveAllInputs?(Ee(Array.isArray(f),function(){return"saveAllInputs is true, expected inputs to be an array."}),Z=Object.keys(f).map(function(de){return f[de]})):Z=z.map(function(de){return f[de]});var le=y.filter(function(de,we){return Y[we]});return Z.concat(le)}return null},_.prototype.makeTensor=function(m,f,y,E){if(m==null)throw new Error("Values passed to engine.makeTensor() are null");y=y||"float32",E=E||this.backend;var z=m;y==="string"&&on(m[0])&&(z=m.map(function(we){return Fn(we)}));var Y=E.write(z,f,y),Z=new Zt(f,y,Y,this.nextTensorId());if(this.incRef(Z,E),y==="string"){var le=this.state.tensorInfo.get(Y),de=ct(z);this.state.numBytes+=de-le.bytes,le.bytes=de}return Z},_.prototype.makeTensorFromDataId=function(m,f,y,E){var z=new Zt(f,y=y||"float32",m,this.nextTensorId());return this.incRef(z,E),z},_.prototype.makeVariable=function(m,f,y,E){f===void 0&&(f=!0),y=y||this.nextVariableId().toString(),E!=null&&E!==m.dtype&&(m=m.asType(E));var z=new St(m,f,y,this.nextTensorId());if(this.state.registeredVariables[z.name]!=null)throw new Error("Variable with name "+z.name+" was already registered");return this.state.registeredVariables[z.name]=z,this.incRef(z,this.backend),z},_.prototype.incRef=function(m,f){var y=this.state.tensorInfo.has(m.dataId)?this.state.tensorInfo.get(m.dataId).refCount:0;if(this.state.numTensors++,m.dtype==="string"&&this.state.numStringTensors++,y===0){this.state.numDataBuffers++;var E=0;m.dtype!=="complex64"&&m.dtype!=="string"&&(E=m.size*It(m.dtype)),this.state.tensorInfo.set(m.dataId,{backend:f||this.backend,dtype:m.dtype,shape:m.shape,bytes:E,refCount:0}),this.state.numBytes+=E}this.state.tensorInfo.get(m.dataId).refCount++,m instanceof St||this.track(m)},_.prototype.disposeTensor=function(m){if(this.state.tensorInfo.has(m.dataId)){this.state.numTensors--,m.dtype==="string"&&this.state.numStringTensors--;var f=this.state.tensorInfo.get(m.dataId);f.refCount<=1?(m.dtype!=="complex64"&&(this.state.numBytes-=f.bytes),this.state.numDataBuffers--,f.backend.disposeData(m.dataId),this.state.tensorInfo.delete(m.dataId)):this.state.tensorInfo.get(m.dataId).refCount--}},_.prototype.disposeVariables=function(){for(var m in this.state.registeredVariables){var f=this.state.registeredVariables[m];this.disposeVariable(f)}},_.prototype.disposeVariable=function(m){this.disposeTensor(m),this.state.registeredVariables[m.name]!=null&&delete this.state.registeredVariables[m.name]},_.prototype.memory=function(){var m=this.backend.memory();return m.numTensors=this.state.numTensors,m.numDataBuffers=this.state.numDataBuffers,m.numBytes=this.state.numBytes,this.state.numStringTensors>0&&(m.unreliable=!0,m.reasons==null&&(m.reasons=[]),m.reasons.push("Memory usage by string tensors is approximate (2 bytes per character)")),m},_.prototype.profile=function(m){return S(this,void 0,void 0,function(){var f,y;return M(this,function(E){return this.state.profiling=!0,f=this.state.numBytes,y=this.state.numTensors,this.state.activeProfile.kernels=[],this.state.activeProfile.result=m(),this.state.profiling=!1,this.state.activeProfile.peakBytes=Math.max.apply(Math,this.state.activeProfile.kernels.map(function(z){return z.totalBytesSnapshot})),this.state.activeProfile.newBytes=this.state.numBytes-f,this.state.activeProfile.newTensors=this.state.numTensors-y,[2,this.state.activeProfile]})})},_.prototype.isTapeOn=function(){return this.state.gradientDepth>0&&this.state.kernelDepth===0},_.prototype.addTapeNode=function(m,f,y,E,z,Y){var Z=this,le={id:this.state.nextTapeNodeId++,kernelName:m,inputs:f,outputs:y,saved:z},de=K(m);de!=null&&(E=de.gradFunc),E!=null&&(le.gradient=function(we){return we=we.map(function(De,Ne){if(De==null){var Fe=y[Ne],Ve=rn(Fe.size,Fe.dtype);return Z.makeTensor(Ve,Fe.shape,Fe.dtype)}return De}),E(we.length>1?we:we[0],z,Y)}),this.state.activeTape.push(le)},_.prototype.keep=function(m){return m.kept=!0,m},_.prototype.startTape=function(){this.state.gradientDepth===0&&(this.state.activeTape=[]),this.state.gradientDepth++},_.prototype.endTape=function(){this.state.gradientDepth--},_.prototype.startScope=function(m){var f={track:[],name:"unnamed scope",id:this.state.nextScopeId++};m&&(f.name=m),this.state.scopeStack.push(f),this.state.activeScope=f},_.prototype.endScope=function(m){for(var f=this,y=Zn(m),E=new Set(y.map(function(le){return le.id})),z=0;z<this.state.activeScope.track.length;z++){var Y=this.state.activeScope.track[z];Y.kept||E.has(Y.id)||Y.dispose()}var Z=this.state.scopeStack.pop();this.state.activeScope=this.state.scopeStack.length===0?null:this.state.scopeStack[this.state.scopeStack.length-1],y.forEach(function(le){le.kept||le.scopeId!==Z.id||f.track(le)})},_.prototype.gradients=function(m,f,y,E){var z=this;if(E===void 0&&(E=!1),Ee(f.length>0,function(){return"gradients() received an empty list of xs."}),y!=null&&y.dtype!=="float32")throw new Error("dy must have 'float32' dtype, but has '"+y.dtype+"'");var Y=this.scopedRun(function(){return z.startTape()},function(){return z.endTape()},function(){return z.tidy("forward",m)});Ee(Y instanceof Zt,function(){return"The result y returned by f() must be a tensor."});var Z=function(le,de,we){for(var De={},Ne={},Fe=0;Fe<de.length;Fe++)De[de[Fe].id]=!0;for(Fe=0;Fe<le.length;Fe++){var Ve=(tn=le[Fe]).inputs;for(var Je in Ve){for(var Xe=Ve[Je],ot=!1,xt=0;xt<de.length;xt++)if(De[Xe.id]){tn.outputs.forEach(function(Dn){return De[Dn.id]=!0}),ot=!0,Ne[tn.id]=!0;break}if(ot)break}}var kt={};kt[we.id]=!0;var At={};for(Fe=le.length-1;Fe>=0;Fe--)for(Ve=(tn=le[Fe]).inputs,xt=0;xt<tn.outputs.length;xt++)if(kt[tn.outputs[xt].id]){for(var Je in Ve)kt[Ve[Je].id]=!0,At[tn.id]=!0;break}var Lt=[];for(Fe=0;Fe<le.length;Fe++){var tn;if(Ne[(tn=le[Fe]).id]&&At[tn.id]){var ln={};for(var Je in tn.inputs){var nn=tn.inputs[Je];De[nn.id]&&(ln[Je]=nn)}var cn=Object.assign({},tn);cn.inputs=ln,cn.outputs=tn.outputs,Lt.push(cn)}}return Lt}(this.state.activeTape,f,Y);if(!E&&Z.length===0&&f.length>0)throw new Error("Cannot compute gradient of y=f(x) with respect to x. Make sure that the f you passed encloses all operations that lead from x to y.");return this.tidy("backward",function(){var le,de,we={};we[Y.id]=y??(de=hn(Ke(le=Y.shape),"float32"),qe.makeTensor(de,le,"float32")),function(Ne,Fe,Ve){for(var Je=function(ot){var xt=Fe[ot],kt=[];if(xt.outputs.forEach(function(ln){var nn=Ne[ln.id];nn!=null?kt.push(nn):kt.push(null)}),xt.gradient==null)throw new Error("Cannot compute gradient: gradient function not found for "+xt.kernelName+".");var At=xt.gradient(kt),Lt=function(ln){if(!(ln in At))throw new Error("Cannot backprop through input "+ln+". Available gradients found: "+Object.keys(At)+".");var nn=Ve(function(){return At[ln]()});if(nn.dtype!=="float32")throw new Error("Error in gradient for op "+xt.kernelName+". The gradient of input "+ln+" must have 'float32' dtype, but has '"+nn.dtype+"'");var cn=xt.inputs[ln];if(!Tt(nn.shape,cn.shape))throw new Error("Error in gradient for op "+xt.kernelName+". The gradient of input '"+ln+"' has shape '"+nn.shape+"', which does not match the shape of the input '"+cn.shape+"'");if(Ne[cn.id]==null)Ne[cn.id]=nn;else{var Dn=Ne[cn.id];Ne[cn.id]=Dn.add(nn),Dn.dispose()}};for(var tn in xt.inputs)Lt(tn)},Xe=Fe.length-1;Xe>=0;Xe--)Je(Xe)}(we,Z,function(Ne){return z.tidy(Ne)});var De=f.map(function(Ne){return we[Ne.id]});return z.state.gradientDepth===0&&(z.state.activeTape.forEach(function(Ne){for(var Fe=0,Ve=Ne.saved;Fe<Ve.length;Fe++)Ve[Fe].dispose()}),z.state.activeTape=null),{value:Y,grads:De}})},_.prototype.customGrad=function(m){var f=this;return Ee(jn(m),function(){return"The f passed in customGrad(f) must be a function."}),function(){for(var y,E=[],z=0;z<arguments.length;z++)E[z]=arguments[z];Ee(E.every(function(Z){return Z instanceof Zt}),function(){return"The args passed in customGrad(f)(x1, x2,...) must all be tensors"});var Y={};return E.forEach(function(Z,le){Y[le]=Z}),f.runKernelFunc(function(Z,le){return Ee((y=m.apply(void 0,E.concat([le]))).value instanceof Zt,function(){return"The function f passed in customGrad(f) must return an object where `obj.value` is a tensor"}),Ee(jn(y.gradFunc),function(){return"The function f passed in customGrad(f) must return an object where `obj.gradFunc` is a function."}),y.value},Y,function(Z,le){var de=y.gradFunc(Z,le),we=Array.isArray(de)?de:[de];Ee(we.length===E.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(...)."}),Ee(we.every(function(Ne){return Ne instanceof Zt}),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 De={};return we.forEach(function(Ne,Fe){De[Fe]=function(){return Ne}}),De})}},_.prototype.readSync=function(m){return this.state.tensorInfo.get(m).backend.readSync(m)},_.prototype.read=function(m){return this.state.tensorInfo.get(m).backend.read(m)},_.prototype.time=function(m){return S(this,void 0,void 0,function(){var f,y;return M(this,function(E){switch(E.label){case 0:return f=fn(),[4,this.backend.time(m)];case 1:return(y=E.sent()).wallMs=fn()-f,[2,y]}})})},_.prototype.track=function(m){return this.state.activeScope!=null&&(m.scopeId=this.state.activeScope.id,this.state.activeScope.track.push(m)),m},Object.defineProperty(_.prototype,"registeredVariables",{get:function(){return this.state.registeredVariables},enumerable:!0,configurable:!0}),_.prototype.reset=function(){for(var m in this.pendingBackendInitId++,this.state.dispose(),this.ENV.reset(),this.state=new Sn,this.registry)this.disposeRegisteredKernels(m),this.registry[m].dispose(),delete this.registry[m];this.backendName=null,this.backendInstance=null,this.pendingBackendInit=null},_.nextTensorId=0,_.nextVariableId=0,_}(),qe=function(){var _=function(){if(Gt==null){var f=void 0;if(typeof window<"u")f=window;else if(s!==void 0)f=s;else if(h!==void 0)f=h;else{if(typeof self>"u")throw new Error("Could not find a global object");f=self}Gt=f}return Gt}();if(_._tfengine==null){var m=new P(_);_._tfengine=new un(m)}return function(f){V=f}(_._tfengine.ENV),$i=function(){return _._tfengine},_._tfengine}();function $n(){return typeof window<"u"&&window.document!=null||typeof WorkerGlobalScope<"u"}var er=L();er.registerFlag("DEBUG",function(){return!1},function(_){_&&console.warn("Debugging mode is ON. 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41      bool isnan_custom(float val) {
42        return (val > 0.0 || val < 0.0) ? false : val != 0.0;
43      }
44
45      bvec4 isnan_custom(vec4 val) {
46        return bvec4(isnan_custom(val.x),
47          isnan_custom(val.y), isnan_custom(val.z), isnan_custom(val.w));
48      }
49
50      #define isnan(value) isnan_custom(value)
51    `,le="",de=`
52      #define round(value) newRound(value)
53      int newRound(float value) {
54        return int(floor(value + 0.5));
55      }
56
57      ivec4 newRound(vec4 value) {
58        return ivec4(floor(value + vec4(0.5)));
59      }
60    `):(_="",m="attribute",f="varying",y="varying",E="texture2D",z="gl_FragColor",Y="",Z=`
61      #define isnan(value) isnan_custom(value)
62      bool isnan_custom(float val) {
63        return (val > 0. || val < 1. || val == 0.) ? false : true;
64      }
65      bvec4 isnan_custom(vec4 val) {
66        return bvec4(isnan(val.x), isnan(val.y), isnan(val.z), isnan(val.w));
67      }
68    `,le=`
69      uniform float INFINITY;
70
71      bool isinf(float val) {
72        return abs(val) == INFINITY;
73      }
74      bvec4 isinf(vec4 val) {
75        return equal(abs(val), vec4(INFINITY));
76      }

77    `,de=`
78      int round(float value) {
79        return int(floor(value + 0.5));
80      }
81
82      ivec4 round(vec4 value) {
83        return ivec4(floor(value + vec4(0.5)));
84      }
85    `),{version:_,attribute:m,varyingVs:f,varyingFs:y,texture2D:E,output:z,defineOutput:Y,defineSpecialNaN:Z,defineSpecialInf:le,defineRound:de}}function ss(_,m,f){f===void 0&&(f="index");var y=ar(m);return y.map(function(E,z){return"int "+_[z]+" = "+f+" / "+E+"; "+(z===y.length-1?"int "+_[z+1]+" = "+f+" - "+_[z]+" * "+E:"index -= "+_[z]+" * "+E)+";"}).join("")}function jc(_){var m=ar(_).map(function(f){return f.toString()});return`
86  int getFlatIndex(ivec3 coords) {
87    return coords.x * `+m[0]+" + coords.y * "+m[1]+` + coords.z;
88  }
89`}var ru=`
90  const float FLOAT_MAX = 1.70141184e38;
91  const float FLOAT_MIN = 1.17549435e-38;
92
93  lowp vec4 encode_float(highp float v) {
94    if (isnan(v)) {
95      return vec4(255, 255, 255, 255);
96    }
97
98    highp float av = abs(v);
99
100    if(av < FLOAT_MIN) {
101      return vec4(0.0, 0.0, 0.0, 0.0);
102    } else if(v > FLOAT_MAX) {
103      return vec4(0.0, 0.0, 128.0, 127.0) / 255.0;
104    } else if(v < -FLOAT_MAX) {
105      return vec4(0.0, 0.0,  128.0, 255.0) / 255.0;
106    }
107
108    highp vec4 c = vec4(0,0,0,0);
109
110    highp float e = floor(log2(av));
111    highp float m = exp2(fract(log2(av))) - 1.0;
112
113    c[2] = floor(128.0 * m);
114    m -= c[2] / 128.0;
115    c[1] = floor(32768.0 * m);
116    m -= c[1] / 32768.0;
117    c[0] = floor(8388608.0 * m);
118
119    highp float ebias = e + 127.0;
120    c[3] = floor(ebias / 2.0);
121    ebias -= c[3] * 2.0;
122    c[2] += floor(ebias) * 128.0;
123
124    c[3] += 128.0 * step(0.0, -v);
125
126    return c / 255.0;
127  }
128`;function ws(_,m,f,y){var E=[];_.forEach(function(Fe){var Ve=Ke(Fe.shapeInfo.logicalShape);Fe.shapeInfo.isUniform?E.push("uniform float "+Fe.name+(Ve>1?"["+Ve+"]":"")+";"):(E.push("uniform sampler2D "+Fe.name+";"),E.push("uniform int offset"+Fe.name+";"))});var z,Y,Z=E.join(`
129`),le=_.map(function(Fe){return function(Ve,Je,Xe){Xe===void 0&&(Xe=!1);var ot="";ot+=Xe?function At(Lt){var tn,ln,nn;switch(Lt.shapeInfo.logicalShape.length){case 0:return tn=Lt.name,ln="get"+tn.charAt(0).toUpperCase()+tn.slice(1),nn=qo(),`
130    vec4 `+ln+`() {
131      return `+nn.texture2D+"("+tn+`, halfCR);
132    }
133  `;case 1:return function(cn){var Dn=cn.name,Rn="get"+Dn.charAt(0).toUpperCase()+Dn.slice(1),Mn=cn.shapeInfo.texShape,tr=[Math.ceil(Mn[0]/2),Math.ceil(Mn[1]/2)],ur=qo();return`
134    vec4 `+Rn+`(int index) {
135      vec2 uv = packedUVfrom1D(
136        `+tr[0]+", "+tr[1]+`, index);
137      return `+ur.texture2D+"("+Dn+`, uv);
138    }
139  `}(Lt);case 2:return function(cn){var Dn=cn.shapeInfo.logicalShape,Rn=cn.name,Mn="get"+Rn.charAt(0).toUpperCase()+Rn.slice(1),tr=cn.shapeInfo.texShape,ur=tr[0],vr=tr[1],kr=qo();if(tr!=null&&Tt(Dn,tr))return`
140      vec4 `+Mn+`(int row, int col) {
141        vec2 uv = (vec2(col, row) + halfCR) / vec2(`+vr+".0, "+ur+`.0);
142
143        return `+kr.texture2D+"("+Rn+`, uv);
144      }
145    `;var yr=[Math.ceil(tr[0]/2),Math.ceil(tr[1]/2)],mr=Math.ceil(Dn[1]/2);return`
146    vec4 `+Mn+`(int row, int col) {
147      vec2 uv = packedUVfrom2D(`+mr+", "+yr[0]+", "+yr[1]+`, row, col);
148      return `+kr.texture2D+"("+Rn+`, uv);
149    }
150  `}(Lt);case 3:return function(cn){var Dn=cn.shapeInfo.logicalShape,Rn=cn.name,Mn="get"+Rn.charAt(0).toUpperCase()+Rn.slice(1),tr=cn.shapeInfo.texShape,ur=[Math.ceil(tr[0]/2),Math.ceil(tr[1]/2)];if(Dn[0]===1){var vr=Dn.slice(1),kr=Cu(cn,vr);return`
151        `+At(kr)+`
152        vec4 `+Mn+`(int b, int row, int col) {
153          return `+Mn+"("+iu(["b","row","col"],[1,2])+`);
154        }
155      `}var yr=ur[0],mr=ur[1],jr=Math.ceil(Dn[2]/2),Pr=jr*Math.ceil(Dn[1]/2),ei=qo();return`
156    vec4 `+Mn+`(int b, int row, int col) {
157      vec2 uv = packedUVfrom3D(
158        `+yr+", "+mr+", "+Pr+", "+jr+`, b, row, col);
159      return `+ei.texture2D+"("+Rn+`, uv);
160    }
161  `}(Lt);default:return function(cn){for(var Dn=cn.shapeInfo.logicalShape,Rn=Dn.length,Mn=cn.name,tr="get"+Mn.charAt(0).toUpperCase()+Mn.slice(1),ur=cn.shapeInfo.texShape,vr=[Math.ceil(ur[0]/2),Math.ceil(ur[1]/2)],kr=vr[0],yr=vr[1],mr=Math.ceil(Dn[Rn-1]/2),jr=mr*Math.ceil(Dn[Rn-2]/2),Pr="int b, int row, int col",ei="b * "+jr+" + (row / 2) * "+mr+" + (col / 2)",pi=2;pi<Rn-1;pi++)Pr="int b"+pi+", "+Pr,jr*=Dn[Rn-pi-1],ei="b"+pi+" * "+jr+" + "+ei;var Mi=qo();return`
162    vec4 `+tr+"("+Pr+`) {
163      int index = `+ei+`;
164      int texR = index / `+yr+`;
165      int texC = index - texR * `+yr+`;
166      vec2 uv = (vec2(texC, texR) + halfCR) / vec2(`+yr+", "+kr+`);
167      return `+Mi.texture2D+"("+Mn+`, uv);
168    }
169  `}(Lt)}}(Ve):function At(Lt){var tn=Lt.shapeInfo.logicalShape;switch(tn.length){case 0:return function(ln){var nn=ln.name,cn="get"+nn.charAt(0).toUpperCase()+nn.slice(1);if(ln.shapeInfo.isUniform)return"float "+cn+"() {return "+nn+";}";var Dn=ln.shapeInfo.texShape,Rn=Dn[0],Mn=Dn[1];if(Rn===1&&Mn===1)return`
170      float `+cn+`() {

171        return sampleTexture(`+nn+`, halfCR);
172      }
173    `;var tr=ln.shapeInfo.texShape,ur=tr[0],vr=tr[1],kr=Ia(nn);return`
174    float `+cn+`() {
175      vec2 uv = uvFromFlat(`+ur+", "+vr+", "+kr+`);
176      return sampleTexture(`+nn+`, uv);
177    }
178  `}(Lt);case 1:return function(ln){var nn=ln.name,cn="get"+nn.charAt(0).toUpperCase()+nn.slice(1);if(ln.shapeInfo.isUniform)return`
179      float `+cn+`(int index) {
180        `+Fu(ln)+`
181      }
182    `;var Dn=ln.shapeInfo.texShape,Rn=Dn[0],Mn=Dn[1];if(Mn===1&&Rn===1)return`
183      float `+cn+`(int index) {
184        return sampleTexture(`+nn+`, halfCR);
185      }
186    `;var tr=Ia(nn);return Mn===1?`
187      float `+cn+`(int index) {
188        vec2 uv = vec2(0.5, (float(index + `+tr+") + 0.5) / "+Rn+`.0);
189        return sampleTexture(`+nn+`, uv);
190      }
191    `:Rn===1?`
192      float `+cn+`(int index) {
193        vec2 uv = vec2((float(index + `+tr+") + 0.5) / "+Mn+`.0, 0.5);
194        return sampleTexture(`+nn+`, uv);
195      }
196    `:`
197    float `+cn+`(int index) {
198      vec2 uv = uvFromFlat(`+Rn+", "+Mn+", index + "+tr+`);
199      return sampleTexture(`+nn+`, uv);
200    }
201  `}(Lt);case 2:return function(ln){var nn=ln.shapeInfo.logicalShape,cn=ln.name,Dn="get"+cn.charAt(0).toUpperCase()+cn.slice(1),Rn=ln.shapeInfo.texShape;if(Rn!=null&&Tt(nn,Rn)){var Mn=Rn[0],tr=Rn[1];return`
202    float `+Dn+`(int row, int col) {
203      vec2 uv = (vec2(col, row) + halfCR) / vec2(`+tr+".0, "+Mn+`.0);
204      return sampleTexture(`+cn+`, uv);
205    }
206  `}var ur=sn(nn),vr=ur.newShape,kr=ur.keptDims,yr=vr;if(yr.length<nn.length){var mr=Cu(ln,yr);return`
207      `+At(mr)+`
208      float `+Dn+`(int row, int col) {
209        return `+Dn+"("+iu(["row","col"],kr)+`);
210      }
211    `}if(ln.shapeInfo.isUniform)return`
212      float `+Dn+`(int row, int col) {
213        int index = round(dot(vec2(row, col), vec2(`+nn[1]+`, 1)));
214        `+Fu(ln)+`
215      }
216    `;var jr=Rn[0],Pr=Rn[1],ei=Ia(cn);return Pr===1?`
217    float `+Dn+`(int row, int col) {
218      float index = dot(vec3(row, col, `+ei+"), vec3("+nn[1]+`, 1, 1));
219      vec2 uv = vec2(0.5, (index + 0.5) / `+jr+`.0);
220      return sampleTexture(`+cn+`, uv);
221    }
222  `:jr===1?`
223    float `+Dn+`(int row, int col) {
224      float index = dot(vec3(row, col, `+ei+"), vec3("+nn[1]+`, 1, 1));
225      vec2 uv = vec2((index + 0.5) / `+Pr+`.0, 0.5);
226      return sampleTexture(`+cn+`, uv);
227    }
228  `:`
229  float `+Dn+`(int row, int col) {
230    // Explicitly use integer operations as dot() only works on floats.
231    int index = row * `+nn[1]+" + col + "+ei+`;
232    vec2 uv = uvFromFlat(`+jr+", "+Pr+`, index);
233    return sampleTexture(`+cn+`, uv);
234  }
235`}(Lt);case 3:return function(ln){var nn=ln.shapeInfo.logicalShape,cn=ln.name,Dn="get"+cn.charAt(0).toUpperCase()+cn.slice(1),Rn=nn[1]*nn[2],Mn=nn[2],tr=sn(nn),ur=tr.newShape,vr=tr.keptDims,kr=ur;if(kr.length<nn.length){var yr=Cu(ln,kr);return`
236        `+At(yr)+`
237        float `+Dn+`(int row, int col, int depth) {
238          return `+Dn+"("+iu(["row","col","depth"],vr)+`);
239        }
240      `}if(ln.shapeInfo.isUniform)return`
241      float `+Dn+`(int row, int col, int depth) {
242        int index = round(dot(vec3(row, col, depth),
243                          vec3(`+Rn+", "+Mn+`, 1)));
244        `+Fu(ln)+`
245      }
246    `;var mr=ln.shapeInfo.texShape,jr=mr[0],Pr=mr[1],ei=ln.shapeInfo.flatOffset;if(Pr===Rn&&ei==null)return`
247        float `+Dn+`(int row, int col, int depth) {
248          float texR = float(row);
249          float texC = dot(vec2(col, depth), vec2(`+Mn+`, 1));
250          vec2 uv = (vec2(texC, texR) + halfCR) /
251                     vec2(`+Pr+".0, "+jr+`.0);
252          return sampleTexture(`+cn+`, uv);
253        }
254      `;if(Pr===Mn&&ei==null)return`
255    float `+Dn+`(int row, int col, int depth) {
256      float texR = dot(vec2(row, col), vec2(`+nn[1]+`, 1));
257      float texC = float(depth);
258      vec2 uv = (vec2(texC, texR) + halfCR) / vec2(`+Pr+".0, "+jr+`.0);
259      return sampleTexture(`+cn+`, uv);
260    }
261  `;var pi=Ia(cn);return`
262      float `+Dn+`(int row, int col, int depth) {
263        // Explicitly use integer operations as dot() only works on floats.
264        int index = row * `+Rn+" + col * "+Mn+" + depth + "+pi+`;
265        vec2 uv = uvFromFlat(`+jr+", "+Pr+`, index);
266        return sampleTexture(`+cn+`, uv);
267      }
268  `}(Lt);case 4:return function(ln){var nn=ln.shapeInfo.logicalShape,cn=ln.name,Dn="get"+cn.charAt(0).toUpperCase()+cn.slice(1),Rn=nn[3],Mn=nn[2]*Rn,tr=nn[1]*Mn,ur=sn(nn),vr=ur.newShape,kr=ur.keptDims;if(vr.length<nn.length){var yr=Cu(ln,vr);return`
269      `+At(yr)+`
270      float `+Dn+`(int row, int col, int depth, int depth2) {
271        return `+Dn+"("+iu(["row","col","depth","depth2"],kr)+`);
272      }
273    `}if(ln.shapeInfo.isUniform)return`
274      float `+Dn+`(int row, int col, int depth, int depth2) {
275        int index = round(dot(vec4(row, col, depth, depth2),
276                          vec4(`+tr+", "+Mn+", "+Rn+`, 1)));
277        `+Fu(ln)+`
278      }
279    `;var mr=ln.shapeInfo.flatOffset,jr=ln.shapeInfo.texShape,Pr=jr[0],ei=jr[1];if(ei===tr&&mr==null)return`
280      float `+Dn+`(int row, int col, int depth, int depth2) {
281        float texR = float(row);
282        float texC =
283            dot(vec3(col, depth, depth2),
284                vec3(`+Mn+", "+Rn+`, 1));
285        vec2 uv = (vec2(texC, texR) + halfCR) /
286                   vec2(`+ei+".0, "+Pr+`.0);
287        return sampleTexture(`+cn+`, uv);
288      }
289    `;if(ei===Rn&&mr==null)return`
290      float `+Dn+`(int row, int col, int depth, int depth2) {

291        float texR = dot(vec3(row, col, depth),
292                         vec3(`+nn[1]*nn[2]+", "+nn[2]+`, 1));
293        float texC = float(depth2);
294        vec2 uv = (vec2(texC, texR) + halfCR) /
295                  vec2(`+ei+".0, "+Pr+`.0);
296        return sampleTexture(`+cn+`, uv);
297      }
298    `;var pi=Ia(cn);return`
299    float `+Dn+`(int row, int col, int depth, int depth2) {
300      // Explicitly use integer operations as dot() only works on floats.
301      int index = row * `+tr+" + col * "+Mn+` +
302          depth * `+Rn+` + depth2;
303      vec2 uv = uvFromFlat(`+Pr+", "+ei+", index + "+pi+`);
304      return sampleTexture(`+cn+`, uv);
305    }
306  `}(Lt);case 5:return function(ln){var nn=ln.shapeInfo.logicalShape,cn=ln.name,Dn="get"+cn.charAt(0).toUpperCase()+cn.slice(1),Rn=nn[4],Mn=nn[3]*Rn,tr=nn[2]*Mn,ur=nn[1]*tr,vr=sn(nn),kr=vr.newShape,yr=vr.keptDims;if(kr.length<nn.length){var mr=Cu(ln,kr);return`
307      `+At(mr)+`
308      float `+Dn+`(int row, int col, int depth, int depth2, int depth3) {
309        return `+Dn+"("+iu(["row","col","depth","depth2","depth3"],yr)+`);
310      }
311    `}if(ln.shapeInfo.isUniform)return`
312      float `+Dn+`(int row, int col, int depth, int depth2, int depth3) {
313        float index = dot(
314          vec4(row, col, depth, depth2),
315          vec4(`+ur+", "+tr+", "+Mn+", "+Rn+`)) +
316          depth3;
317        `+Fu(ln)+`
318      }
319    `;var jr=ln.shapeInfo.flatOffset,Pr=ln.shapeInfo.texShape,ei=Pr[0],pi=Pr[1];if(pi===ur&&jr==null)return`
320      float `+Dn+`(int row, int col, int depth, int depth2, int depth3) {
321        int texR = row;
322        float texC = dot(vec4(col, depth, depth2, depth3),
323                         vec4(`+tr+", "+Mn+", "+Rn+`, 1));
324        vec2 uv = (vec2(texC, texR) + halfCR) /
325                   vec2(`+pi+".0, "+ei+`.0);
326        return sampleTexture(`+cn+`, uv);
327      }
328    `;if(pi===Rn&&jr==null)return`
329      float `+Dn+`(int row, int col, int depth, int depth2, int depth3) {
330        float texR = dot(
331          vec4(row, col, depth, depth2),
332          vec4(`+nn[1]*nn[2]*nn[3]+`,
333               `+nn[2]*nn[3]+", "+nn[3]+`, 1));
334        int texC = depth3;
335        vec2 uv = (vec2(texC, texR) + halfCR) /
336                  vec2(`+pi+".0, "+ei+`.0);
337        return sampleTexture(`+cn+`, uv);
338      }
339    `;var Mi=Ia(cn);return`
340    float `+Dn+`(int row, int col, int depth, int depth2, int depth3) {
341      // Explicitly use integer operations as dot() only works on floats.
342      int index = row * `+ur+" + col * "+tr+" + depth * "+Mn+` +
343          depth2 * `+Rn+" + depth3 + "+Mi+`;
344      vec2 uv = uvFromFlat(`+ei+", "+pi+`, index);
345      return sampleTexture(`+cn+`, uv);
346    }
347  `}(Lt);case 6:return function(ln){var nn=ln.shapeInfo.logicalShape,cn=ln.name,Dn="get"+cn.charAt(0).toUpperCase()+cn.slice(1),Rn=sn(nn),Mn=Rn.newShape,tr=Rn.keptDims;if(Mn.length<nn.length){var ur=Cu(ln,Mn);return`
348      `+At(ur)+`
349      float `+Dn+`(int row, int col, int depth,
350                    int depth2, int depth3, int depth4) {
351        return `+Dn+"("+iu(["row","col","depth","depth2","depth3","depth4"],tr)+`);
352      }
353    `}var vr=nn[5],kr=nn[4]*vr,yr=nn[3]*kr,mr=nn[2]*yr,jr=nn[1]*mr;if(ln.shapeInfo.isUniform)return`
354      float `+Dn+`(int row, int col, int depth,
355                  int depth2, int depth3, int depth4) {
356        int index = round(dot(
357          vec4(row, col, depth, depth2),
358          vec4(`+jr+", "+mr+", "+yr+", "+kr+`)) +
359          dot(
360            vec2(depth3, depth4),
361            vec2(`+vr+`, 1)));
362        `+Fu(ln)+`
363      }
364    `;var Pr=ln.shapeInfo.flatOffset,ei=ln.shapeInfo.texShape,pi=ei[0],Mi=ei[1];if(Mi===jr&&Pr==null)return`
365      float `+Dn+`(int row, int col, int depth,
366                    int depth2, int depth3, int depth4) {
367        int texR = row;
368        float texC = dot(vec4(col, depth, depth2, depth3),
369          vec4(`+mr+", "+yr+", "+kr+", "+vr+`)) +
370               float(depth4);
371        vec2 uv = (vec2(texC, texR) + halfCR) /
372                   vec2(`+Mi+".0, "+pi+`.0);
373        return sampleTexture(`+cn+`, uv);
374      }
375    `;if(Mi===vr&&Pr==null)return`
376      float `+Dn+`(int row, int col, int depth,
377                    int depth2, int depth3, int depth4) {

378        float texR = dot(vec4(row, col, depth, depth2),
379          vec4(`+nn[1]*nn[2]*nn[3]*nn[4]+`,
380               `+nn[2]*nn[3]*nn[4]+`,
381               `+nn[3]*nn[4]+`,
382               `+nn[4]+`)) + float(depth3);
383        int texC = depth4;
384        vec2 uv = (vec2(texC, texR) + halfCR) /
385                  vec2(`+Mi+".0, "+pi+`.0);
386        return sampleTexture(`+cn+`, uv);
387      }
388    `;var Ro=Ia(cn);return`
389    float `+Dn+`(int row, int col, int depth,
390                  int depth2, int depth3, int depth4) {
391      // Explicitly use integer operations as dot() only works on floats.
392      int index = row * `+jr+" + col * "+mr+" + depth * "+yr+` +
393          depth2 * `+kr+" + depth3 * "+vr+" + depth4 + "+Ro+`;
394      vec2 uv = uvFromFlat(`+pi+", "+Mi+`, index);
395      return sampleTexture(`+cn+`, uv);
396    }
397  `}(Lt);default:throw new Error(tn.length+"-D input sampling is not yet supported")}}(Ve);var xt=Ve.shapeInfo.logicalShape,kt=Je.logicalShape;return xt.length<=kt.length&&(ot+=Xe?function(At,Lt){var tn,ln=At.name,nn=ln.charAt(0).toUpperCase()+ln.slice(1),cn="get"+nn+"AtOutCoords",Dn=At.shapeInfo.logicalShape.length,Rn=Lt.logicalShape.length,Mn=hs(At.shapeInfo.logicalShape,Lt.logicalShape),tr=fa(Rn),ur=Rn-Dn,vr=["x","y","z","w","u","v"];tn=Dn===0?"":Rn<2&&Mn.length>=1?"coords = 0;":Mn.map(function(pi){return"coords."+vr[pi+ur]+" = 0;"}).join(`
398`);var kr;kr=Rn<2&&Dn>0?"coords":At.shapeInfo.logicalShape.map(function(pi,Mi){return"coords."+vr[Mi+ur]}).join(", ");var yr="return outputValue;",mr=Ke(At.shapeInfo.logicalShape)===1,jr=Ke(Lt.logicalShape)===1;if(Dn!==1||mr||jr){if(mr&&!jr)yr=Rn===1?`
399        return vec4(outputValue.x, outputValue.x, 0., 0.);
400      `:`
401        return vec4(outputValue.x);
402      `;else if(Mn.length){var Pr=Dn-2,ei=Dn-1;Mn.indexOf(Pr)>-1&&Mn.indexOf(ei)>-1?yr="return vec4(outputValue.x);":Mn.indexOf(Pr)>-1?yr="return vec4(outputValue.x, outputValue.y, outputValue.x, outputValue.y);":Mn.indexOf(ei)>-1&&(yr="return vec4(outputValue.xx, outputValue.zz);")}}else yr=`
403      return vec4(outputValue.xy, outputValue.xy);
404    `;return`
405    vec4 `+cn+`() {
406      `+tr+` coords = getOutputCoords();
407      `+tn+`
408      vec4 outputValue = get`+nn+"("+kr+`);
409      `+yr+`
410    }
411  `}(Ve,Je):function(At,Lt){var tn=At.name,ln=tn.charAt(0).toUpperCase()+tn.slice(1),nn="get"+ln+"AtOutCoords",cn=Lt.texShape,Dn=At.shapeInfo.texShape,Rn=At.shapeInfo.logicalShape.length,Mn=Lt.logicalShape.length;if(!At.shapeInfo.isUniform&&Rn===Mn&&At.shapeInfo.flatOffset==null&&Tt(Dn,cn))return`
412      float `+nn+`() {
413        return sampleTexture(`+tn+`, resultUV);
414      }
415    `;var tr=fa(Mn),ur=hs(At.shapeInfo.logicalShape,Lt.logicalShape),vr=Mn-Rn,kr=["x","y","z","w","u","v"];return`
416    float `+nn+`() {
417      `+tr+` coords = getOutputCoords();
418      `+(Rn===0?"":Mn<2&&ur.length>=1?"coords = 0;":ur.map(function(yr){return"coords."+kr[yr+vr]+" = 0;"}).join(`
419`))+`
420      return get`+ln+"("+(Mn<2&&Rn>0?"coords":At.shapeInfo.logicalShape.map(function(yr,mr){return"coords."+kr[mr+vr]}).join(", "))+`);
421    }
422  `}(Ve,Je)),ot}(Fe,m,y)}).join(`
423`),de=m.texShape,we=qo(),De=`
424    float sampleTexture(sampler2D textureSampler, vec2 uv) {
425      return `+we.texture2D+`(textureSampler, uv).r;
426    }
427  `,Ne=function(Fe){return Fe.version+`
428    precision highp float;
429    precision highp int;
430    precision highp sampler2D;
431    `+Fe.varyingFs+` vec2 resultUV;
432    `+Fe.defineOutput+`
433    const vec2 halfCR = vec2(0.5, 0.5);
434
435    struct ivec5
436    {
437      int x;
438      int y;
439      int z;
440      int w;
441      int u;
442    };
443
444    struct ivec6
445    {
446      int x;
447      int y;
448      int z;
449      int w;
450      int u;
451      int v;
452    };
453
454    uniform float NAN;
455    `+Fe.defineSpecialNaN+`
456    `+Fe.defineSpecialInf+`
457    `+Fe.defineRound+`
458
459    int imod(int x, int y) {
460      return x - y * (x / y);
461    }
462
463    int idiv(int a, int b, float sign) {
464      int res = a / b;
465      int mod = imod(a, b);
466      if (sign < 0. && mod != 0) {
467        res -= 1;
468      }
469      return res;
470    }
471
472    //Based on the work of Dave Hoskins
473    //https://www.shadertoy.com/view/4djSRW
474    #define HASHSCALE1 443.8975
475    float random(float seed){
476      vec2 p = resultUV * seed;
477      vec3 p3  = fract(vec3(p.xyx) * HASHSCALE1);
478      p3 += dot(p3, p3.yzx + 19.19);
479      return fract((p3.x + p3.y) * p3.z);
480    }
481
482    `+la+`
483    `+Al+`
484    `+Xu+`
485  `}(we);return m.isPacked?(z=function(Fe,Ve){switch(Fe.length){case 0:return`
486    int getOutputCoords() {
487      return 0;
488    }
489  `;case 1:return function(At,Lt){var tn=[Math.ceil(Lt[0]/2),Math.ceil(Lt[1]/2)];return tn[0]===1?`
490      int getOutputCoords() {
491        return 2 * int(resultUV.x * `+tn[1]+`.0);
492      }
493    `:tn[1]===1?`
494      int getOutputCoords() {
495        return 2 * int(resultUV.y * `+tn[0]+`.0);
496      }
497    `:`
498    int getOutputCoords() {

499      ivec2 resTexRC = ivec2(resultUV.yx *
500                             vec2(`+tn[0]+", "+tn[1]+`));
501      return 2 * (resTexRC.x * `+tn[1]+` + resTexRC.y);
502    }
503  `}(0,Ve);case 2:return function(At,Lt){var tn=[Math.ceil(Lt[0]/2),Math.ceil(Lt[1]/2)];if(Tt(At,Lt))return`
504      ivec2 getOutputCoords() {
505        return 2 * ivec2(resultUV.yx * vec2(`+tn[0]+", "+tn[1]+`));
506      }
507    `;var ln=Math.ceil(At[1]/2);return`
508    ivec2 getOutputCoords() {
509      ivec2 resTexRC = ivec2(resultUV.yx *
510                             vec2(`+tn[0]+", "+tn[1]+`));
511
512      int index = resTexRC.x * `+tn[1]+` + resTexRC.y;
513      int r = 2 * (index / `+ln+`);
514      int c = imod(index, `+ln+`) * 2;
515
516      return ivec2(r, c);
517    }
518  `}(Fe,Ve);case 3:return Je=Fe,Xe=Ve,ot=[Math.ceil(Xe[0]/2),Math.ceil(Xe[1]/2)],kt=(xt=Math.ceil(Je[2]/2))*Math.ceil(Je[1]/2),`
519    ivec3 getOutputCoords() {
520      ivec2 resTexRC = ivec2(resultUV.yx *
521                             vec2(`+ot[0]+", "+ot[1]+`));
522      int index = resTexRC.x * `+ot[1]+` + resTexRC.y;
523
524      int b = index / `+kt+`;
525      index -= b * `+kt+`;
526
527      int r = 2 * (index / `+xt+`);
528      int c = imod(index, `+xt+`) * 2;
529
530      return ivec3(b, r, c);
531    }
532  `;default:return function(At,Lt){for(var tn=[Math.ceil(Lt[0]/2),Math.ceil(Lt[1]/2)],ln=Math.ceil(At[At.length-1]/2),nn=ln*Math.ceil(At[At.length-2]/2),cn=nn,Dn="",Rn="b, r, c",Mn=2;Mn<At.length-1;Mn++)Dn=`
533      int b`+Mn+" = index / "+(cn*=At[At.length-Mn-1])+`;
534      index -= b`+Mn+" * "+cn+`;
535    `+Dn,Rn="b"+Mn+", "+Rn;return`
536    ivec`+At.length+` getOutputCoords() {
537      ivec2 resTexRC = ivec2(resultUV.yx *
538                             vec2(`+tn[0]+", "+tn[1]+`));
539      int index = resTexRC.x * `+tn[1]+` + resTexRC.y;
540
541      `+Dn+`
542
543      int b = index / `+nn+`;
544      index -= b * `+nn+`;
545
546      int r = 2 * (index / `+ln+`);
547      int c = imod(index, `+ln+`) * 2;
548
549      return ivec`+At.length+"("+Rn+`);
550    }
551  `}(Fe,Ve)}var Je,Xe,ot,xt,kt}(m.logicalShape,de),Y=`
552    void setOutput(vec4 val) {
553      `+we.output+` = val;
554    }
555  `):(z=function(Fe,Ve){switch(Fe.length){case 0:return`
556    int getOutputCoords() {
557      return 0;
558    }
559  `;case 1:return function(ot,xt){return xt[0]===1?`
560      int getOutputCoords() {
561        return int(resultUV.x * `+xt[1]+`.0);
562      }
563    `:xt[1]===1?`
564      int getOutputCoords() {
565        return int(resultUV.y * `+xt[0]+`.0);
566      }
567    `:`
568    int getOutputCoords() {
569      ivec2 resTexRC = ivec2(resultUV.yx *
570                             vec2(`+xt[0]+", "+xt[1]+`));
571      return resTexRC.x * `+xt[1]+` + resTexRC.y;
572    }
573  `}(0,Ve);case 2:return function(ot,xt){return Tt(ot,xt)?`
574      ivec2 getOutputCoords() {
575        return ivec2(resultUV.yx * vec2(`+xt[0]+", "+xt[1]+`));
576      }
577    `:ot[1]===1?`
578      ivec2 getOutputCoords() {
579        ivec2 resTexRC = ivec2(resultUV.yx *
580                               vec2(`+xt[0]+", "+xt[1]+`));
581        int index = resTexRC.x * `+xt[1]+` + resTexRC.y;
582        return ivec2(index, 0);
583      }
584    `:ot[0]===1?`
585      ivec2 getOutputCoords() {
586        ivec2 resTexRC = ivec2(resultUV.yx *
587                               vec2(`+xt[0]+", "+xt[1]+`));
588        int index = resTexRC.x * `+xt[1]+` + resTexRC.y;
589        return ivec2(0, index);
590      }
591    `:`
592    ivec2 getOutputCoords() {
593      ivec2 resTexRC = ivec2(resultUV.yx *
594                             vec2(`+xt[0]+", "+xt[1]+`));
595      int index = resTexRC.x * `+xt[1]+` + resTexRC.y;
596      int r = index / `+ot[1]+`;
597      int c = index - r * `+ot[1]+`;
598      return ivec2(r, c);
599    }
600  `}(Fe,Ve);case 3:return Je=Ve,Xe=ss(["r","c","d"],Fe),`
601    ivec3 getOutputCoords() {
602      ivec2 resTexRC = ivec2(resultUV.yx *
603                             vec2(`+Je[0]+", "+Je[1]+`));
604      int index = resTexRC.x * `+Je[1]+` + resTexRC.y;
605      `+Xe+`
606      return ivec3(r, c, d);
607    }
608  `;case 4:return function(ot,xt){var kt=ss(["r","c","d","d2"],ot);return`
609    ivec4 getOutputCoords() {
610      ivec2 resTexRC = ivec2(resultUV.yx *
611        vec2(`+xt[0]+", "+xt[1]+`));
612      int index = resTexRC.x * `+xt[1]+` + resTexRC.y;
613      `+kt+`
614      return ivec4(r, c, d, d2);
615    }
616  `}(Fe,Ve);case 5:return function(ot,xt){var kt=ss(["r","c","d","d2","d3"],ot);return`
617    ivec5 getOutputCoords() {

618      ivec2 resTexRC = ivec2(resultUV.yx * vec2(`+xt[0]+`,
619                             `+xt[1]+`));
620
621      int index = resTexRC.x * `+xt[1]+` + resTexRC.y;
622
623      `+kt+`
624
625      ivec5 outShape = ivec5(r, c, d, d2, d3);
626      return outShape;
627    }
628  `}(Fe,Ve);case 6:return function(ot,xt){var kt=ss(["r","c","d","d2","d3","d4"],ot);return`
629    ivec6 getOutputCoords() {
630      ivec2 resTexRC = ivec2(resultUV.yx *
631        vec2(`+xt[0]+", "+xt[1]+`));
632      int index = resTexRC.x * `+xt[1]+` + resTexRC.y;
633
634      `+kt+`
635
636      ivec6 result = ivec6(r, c, d, d2, d3, d4);
637      return result;
638    }
639  `}(Fe,Ve);default:throw new Error(Fe.length+"-D output sampling is not yet supported")}var Je,Xe}(m.logicalShape,de),Y=`
640    void setOutput(float val) {
641      `+we.output+` = vec4(val, 0, 0, 0);
642    }
643  `),y&&(Ne+=Mu),[Ne,De,Y,Z,z,le,f].join(`
644`)}var la=`
645vec2 uvFromFlat(int texNumR, int texNumC, int index) {
646  int texR = index / texNumC;
647  int texC = index - texR * texNumC;
648  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);
649}
650vec2 packedUVfrom1D(int texNumR, int texNumC, int index) {
651  int texelIndex = index / 2;
652  int texR = texelIndex / texNumC;
653  int texC = texelIndex - texR * texNumC;
654  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);
655}
656`,Al=`
657vec2 packedUVfrom2D(int texelsInLogicalRow, int texNumR,
658  int texNumC, int row, int col) {
659  int texelIndex = (row / 2) * texelsInLogicalRow + (col / 2);
660  int texR = texelIndex / texNumC;
661  int texC = texelIndex - texR * texNumC;
662  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);
663}
664`,Xu=`
665vec2 packedUVfrom3D(int texNumR, int texNumC,
666    int texelsInBatch, int texelsInLogicalRow, int b,
667    int row, int col) {
668  int index = b * texelsInBatch + (row / 2) * texelsInLogicalRow + (col / 2);
669  int texR = index / texNumC;
670  int texC = index - texR * texNumC;
671  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);
672}
673`,Mu=`
674  float getChannel(vec4 frag, vec2 innerDims) {
675    vec2 modCoord = mod(innerDims, 2.);
676    return modCoord.x == 0. ?
677      (modCoord.y == 0. ? frag.r : frag.g) :
678      (modCoord.y == 0. ? frag.b : frag.a);
679  }
680  float getChannel(vec4 frag, int dim) {
681    float modCoord = mod(float(dim), 2.);
682    return modCoord == 0. ? frag.r : frag.g;
683  }
684`;function Ia(_){return"offset"+_}function Fu(_){var m=_.name,f=Ke(_.shapeInfo.logicalShape);return f<2?"return "+m+";":`
685    for (int i = 0; i < `+f+`; i++) {
686      if (i == index) {
687        return `+m+`[i];
688      }
689    }
690  `}function fa(_){if(_<=1)return"int";if(_===2)return"ivec2";if(_===3)return"ivec3";if(_===4)return"ivec4";if(_===5)return"ivec5";if(_===6)return"ivec6";throw Error("GPU for rank "+_+" is not yet supported")}function Cu(_,m){var f=JSON.parse(JSON.stringify(_));return f.shapeInfo.logicalShape=m,f}function iu(_,m){return m.map(function(f){return _[f]}).join(", ")}var Do=function(_,m,f){this.variableNames=["AReal","AImag","BReal","BImag"],this.outputShape=no(m,f),this.userCode=`
691      float binaryOpComplex(
692          float areal, float aimag, float breal, float bimag) {
693        `+_+`
694      }
695
696      void main() {
697        float areal = getARealAtOutCoords();
698        float aimag = getAImagAtOutCoords();
699        float breal = getBRealAtOutCoords();
700        float bimag = getBImagAtOutCoords();
701        setOutput(binaryOpComplex(areal, aimag, breal, bimag));
702      }
703    `},Su="return a + b;",Ls="return a - b;",Ju="return a * b;",Xl="return (a < 0.) ? b * a : a;",xa=function(_,m,f){this.variableNames=["A","B"],this.outputShape=no(m,f),this.userCode=`
704      float binaryOperation(float a, float b) {
705        `+_+`
706      }
707
708      void main() {
709        float a = getAAtOutCoords();
710        float b = getBAtOutCoords();
711        setOutput(binaryOperation(a, b));
712      }
713    `},qs=`
714  vec4 aLessThanZero = vec4(lessThan(a, vec4(0.)));

715  return (aLessThanZero * (b * a)) + ((vec4(1.0) - aLessThanZero) * a);
716`,_s=function(_,m,f,y){y===void 0&&(y=!1),this.variableNames=["A","B"],this.supportsBroadcasting=!0,this.packedInputs=!0,this.packedOutput=!0,this.outputShape=no(m,f);var E=this.outputShape.length,z="";if(y)if(E===0||Ke(this.outputShape)===1)z=`
717          result.y = 0.;
718          result.z = 0.;
719          result.w = 0.;
720        `;else if(z=`
721          `+fa(E)+` coords = getOutputCoords();
722        `,E===1)z+=`
723            result.y = (coords + 1) >= `+this.outputShape[0]+` ? 0. : result.y;
724            result.z = 0.;
725            result.w = 0.;
726          `;else{var Y=Za("coords",E);z+=`
727            bool nextRowOutOfBounds =
728              (`+Y[E-2]+" + 1) >= "+this.outputShape[E-2]+`;
729            bool nextColOutOfBounds =
730              (`+Y[E-1]+" + 1) >= "+this.outputShape[E-1]+`;
731            result.y = nextColOutOfBounds ? 0. : result.y;
732            result.z = nextRowOutOfBounds ? 0. : result.z;
733            result.w = nextColOutOfBounds || nextRowOutOfBounds ? 0. : result.w;
734          `}this.userCode=`
735      vec4 binaryOperation(vec4 a, vec4 b) {
736        `+_+`
737      }
738
739      void main() {
740        vec4 a = getAAtOutCoords();
741        vec4 b = getBAtOutCoords();
742
743        vec4 result = binaryOperation(a, b);
744        `+z+`
745
746        setOutput(result);
747      }
748    `},Ol=function(){function _(m){this.variableNames=["A"],this.outputShape=m,this.userCode=`
749      uniform float minVal;
750      uniform float maxVal;
751
752      void main() {
753        float value = getAAtOutCoords();
754        if (isnan(value)) {
755          setOutput(value);
756          return;
757        }
758
759        setOutput(clamp(value, minVal, maxVal));
760      }
761    `}return _.prototype.getCustomSetupFunc=function(m,f){var y=this;return function(E,z){y.minLoc==null&&(y.minLoc=E.getUniformLocationNoThrow(z,"minVal"),y.maxLoc=E.getUniformLocationNoThrow(z,"maxVal")),E.gl.uniform1f(y.minLoc,m),E.gl.uniform1f(y.maxLoc,f)}},_}(),Of=function(){function _(m){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=m,this.userCode=`
762      uniform float minVal;
763      uniform float maxVal;
764
765      void main() {
766        vec4 value = getAAtOutCoords();
767
768        if (any(isnan(value))) {
769          setOutput(value);
770          return;
771        }
772
773        setOutput(clamp(value, vec4(minVal), vec4(maxVal)));
774      }
775    `}return _.prototype.getCustomSetupFunc=function(m,f){var y=this;return function(E,z){y.minLoc==null&&(y.minLoc=E.getUniformLocationNoThrow(z,"minVal"),y.maxLoc=E.getUniformLocationNoThrow(z,"maxVal")),E.gl.uniform1f(y.minLoc,m),E.gl.uniform1f(y.maxLoc,f)}},_}();function Oi(_,m,f){var y=_.indexOf(m);return _.map(function(E,z){return z===y?E+" - "+f:E}).join()}var qm=function(_,m,f,y){m===void 0&&(m=!1),f===void 0&&(f=null),y===void 0&&(y=!1),this.variableNames=["x","W"],this.outputShape=_.outShape;var E=_.padInfo.top,z=_.padInfo.left,Y=_.strideHeight,Z=_.strideWidth,le=_.dilationHeight,de=_.dilationWidth,we=_.filterHeight,De=_.filterWidth,Ne=4*Math.floor(_.inChannels/4),Fe=_.inChannels%4,Ve=_.dataFormat==="channelsLast",Je=Ve?1:2,Xe=Ve?2:3,ot=Ve?3:1,xt="",kt="";f&&(xt=y?`float activation(float a) {
776          float b = getPreluActivationWeightsAtOutCoords();
777          `+f+`
778        }`:`
779          float activation(float x) {
780            `+f+`
781          }
782        `,kt="result = activation(result);");var At=m?"result += getBiasAtOutCoords();":"";m&&this.variableNames.push("bias"),y&&this.variableNames.push("preluActivationWeights"),this.userCode=`
783      `+xt+`
784
785      const ivec2 strides = ivec2(`+Y+", "+Z+`);
786      const ivec2 pads = ivec2(`+E+", "+z+`);
787
788      void main() {
789        ivec4 coords = getOutputCoords();
790        int batch = coords[0];
791        int d2 = coords[`+ot+`];
792
793        ivec2 xRCCorner =
794            ivec2(coords[`+Je+"], coords["+Xe+`]) * strides - pads;
795        int xRCorner = xRCCorner.x;
796        int xCCorner = xRCCorner.y;
797
798        // Convolve x(?, ?, d1) with w(:, :, d1, d2) to get y(yR, yC, d2).
799        // ? = to be determined. : = across all values in that axis.
800        float dotProd = 0.0;
801        for (int wR = 0; wR < `+we+`; wR++) {
802          int xR = xRCorner + wR * `+le+`;
803
804          if (xR < 0 || xR >= `+_.inHeight+`) {
805            continue;
806          }
807
808          for (int wC = 0; wC < `+De+`; wC++) {
809            int xC = xCCorner + wC * `+de+`;
810
811            if (xC < 0 || xC >= `+_.inWidth+`) {
812              continue;
813            }
814
815            for (int d1 = 0; d1 < `+Ne+`; d1 += 4) {
816              vec4 wValues = vec4(
817                getW(wR, wC, d1, d2),
818                getW(wR, wC, d1 + 1, d2),
819                getW(wR, wC, d1 + 2, d2),
820                getW(wR, wC, d1 + 3, d2)
821              );
822
823              if (`+Ve+`) {
824                vec4 xValues = vec4(
825                  getX(batch, xR, xC, d1),
826                  getX(batch, xR, xC, d1 + 1),
827                  getX(batch, xR, xC, d1 + 2),
828                  getX(batch, xR, xC, d1 + 3)
829                );
830                dotProd += dot(xValues, wValues);
831              } else {
832                vec4 xValues = vec4(
833                  getX(batch, d1, xR, xC),
834                  getX(batch, d1 + 1, xR, xC),
835                  getX(batch, d1 + 2, xR, xC),
836                  getX(batch, d1 + 3, xR, xC)
837                );
838                dotProd += dot(xValues, wValues);
839              }
840            }
841
842            if (`+(Fe===1)+`) {
843
844              if (`+Ve+`) {
845                dotProd +=
846                    getX(batch, xR, xC, `+Ne+`) *
847                    getW(wR, wC, `+Ne+`, d2);
848              } else {
849                dotProd +=
850                    getX(batch, `+Ne+`, xR, xC) *
851                    getW(wR, wC, `+Ne+`, d2);
852              }
853
854            } else if (`+(Fe===2)+`) {
855              vec2 wValues = vec2(
856                getW(wR, wC, `+Ne+`, d2),
857                getW(wR, wC, `+Ne+` + 1, d2)
858              );
859
860              if (`+Ve+`) {
861                vec2 xValues = vec2(
862                  getX(batch, xR, xC, `+Ne+`),
863                  getX(batch, xR, xC, `+Ne+` + 1)
864                );
865                dotProd += dot(xValues, wValues);
866              } else {
867                vec2 xValues = vec2(
868                  getX(batch, `+Ne+`, xR, xC),
869                  getX(batch, `+Ne+` + 1, xR, xC)
870                );
871                dotProd += dot(xValues, wValues);
872              }
873
874            } else if (`+(Fe===3)+`) {
875              vec3 wValues = vec3(
876                getW(wR, wC, `+Ne+`, d2),
877                getW(wR, wC, `+Ne+` + 1, d2),
878                getW(wR, wC, `+Ne+` + 2, d2)
879              );
880
881              if (`+Ve+`) {
882                vec3 xValues = vec3(
883                  getX(batch, xR, xC, `+Ne+`),
884                  getX(batch, xR, xC, `+Ne+` + 1),
885                  getX(batch, xR, xC, `+Ne+` + 2)
886                );
887                dotProd += dot(xValues, wValues);
888              } else {
889                vec3 xValues = vec3(
890                  getX(batch, `+Ne+`, xR, xC),
891                  getX(batch, `+Ne+` + 1, xR, xC),
892                  getX(batch, `+Ne+` + 2, xR, xC)
893                );
894                dotProd += dot(xValues, wValues);
895              }
896
897            }
898          }
899        }
900
901        float result = dotProd;
902        `+At+`
903        `+kt+`
904        setOutput(result);
905      }
906    `},Df=function(_,m,f,y){m===void 0&&(m=!1),f===void 0&&(f=null),y===void 0&&(y=!1),this.variableNames=["x","W"],this.outputShape=_.outShape;var E=_.inHeight,z=_.inWidth,Y=_.padInfo.top,Z=_.padInfo.left,le=_.strideHeight,de=_.strideWidth,we=_.dilationHeight,De=_.dilationWidth,Ne=_.filterHeight,Fe=_.filterWidth,Ve=_.outChannels/_.inChannels,Je="",Xe="";f&&(Je=y?`float activation(float a) {
907          float b = getPreluActivationWeightsAtOutCoords();
908          `+f+`
909        }`:`
910          float activation(float x) {
911            `+f+`
912          }
913        `,Xe="result = activation(result);");var ot=m?"result += getBiasAtOutCoords();":"";m&&this.variableNames.push("bias"),y&&this.variableNames.push("preluActivationWeights"),this.userCode=`
914      `+Je+`
915
916      const ivec2 strides = ivec2(`+le+", "+de+`);
917      const ivec2 pads = ivec2(`+Y+", "+Z+`);
918
919      void main() {
920        ivec4 coords = getOutputCoords();
921        int batch = coords.x;
922        ivec2 xRCCorner = coords.yz * strides - pads;
923        int d2 = coords.w;
924        int d1 = d2 / `+Ve+`;
925        int q = d2 - d1 * `+Ve+`;
926
927        int xRCorner = xRCCorner.x;
928        int xCCorner = xRCCorner.y;
929
930        // Convolve x(?, ?, d1) with w(:, :, d1, q) to get y(yR, yC, d2).
931        // ? = to be determined. : = across all values in that axis.
932        float dotProd = 0.0;
933        // TO DO(dsmilkov): Flatten the two for loops and vec4 the operations.
934        for (int wR = 0; wR < `+Ne+`; wR++) {
935          int xR = xRCorner + wR * `+we+`;
936
937          if (xR < 0 || xR >= `+E+`) {
938            continue;
939          }
940
941          for (int wC = 0; wC < `+Fe+`; wC++) {
942            int xC = xCCorner + wC * `+De+`;
943
944            if (xC < 0 || xC >= `+z+`) {
945              continue;
946            }
947
948            float xVal = getX(batch, xR, xC, d1);
949            float wVal = getW(wR, wC, d1, q);
950            dotProd += xVal * wVal;
951          }
952        }
953
954        float result = dotProd;
955        `+ot+`
956        `+Xe+`
957        setOutput(result);
958      }
959    `},yd=function(_,m,f,y){m===void 0&&(m=!1),f===void 0&&(f=null),y===void 0&&(y=!1),this.variableNames=["x","W"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=_.outShape;for(var E=_.inHeight,z=_.inWidth,Y=_.padInfo.top,Z=_.padInfo.left,le=_.strideHeight,de=_.strideWidth,we=_.dilationHeight,De=_.dilationWidth,Ne=_.filterHeight,Fe=_.filterWidth,Ve=Fe,Je="int xR; int xC; int xCOffset;",Xe=0;Xe<Ne;Xe++)for(var ot=0;ot<Fe;ot++)Je+=`
960          vec4 xTexelR`+Xe+"C"+2*ot+` = vec4(0.);
961          vec4 wR`+Xe+"C"+ot+` = vec4(0.);
962          vec4 xR`+Xe+"C"+ot+" = vec4(0.);";for(Xe=0;Xe<Ne;Xe++)for(var xt=0;xt<Ve;xt++){if(Je+=`
963          xR = xRCorner + `+Xe*we+`;
964          xC = xCCorner + `+(ot=2*xt)*De+`;
965        `,de===1){if(ot<Fe&&(Je+=Z%2==1?`
966                xCOffset = xC + 1;
967                if(xR >= 0 && xR < `+E+" && xCOffset >= 0 && xCOffset < "+z+`) {
968                  xTexelR`+Xe+"C"+ot+` = getX(batch, xR, xCOffset, d1);
969
970                  // Need to manually clear unused channels in case
971                  // we're reading from recycled texture.
972                  if(xCOffset + 1 >= `+z+`) {
973                    xTexelR`+Xe+"C"+ot+`.zw = vec2(0.);
974                  }
975                } else {
976                  xTexelR`+Xe+"C"+ot+` = vec4(0.);
977                }
978
979                xCOffset = xC + 1 - 2;
980                if(xR >= 0 && xR < `+E+" && xCOffset >= 0 && xCOffset < "+z+`) {
981                  vec4 previous = getX(batch, xR, xCOffset, d1);
982
983                  // Need to manually clear unused channels in case
984                  // we're reading from recycled texture.
985                  if(xCOffset + 1 >= `+z+`) {
986                    previous.zw = vec2(0.);
987                  }
988
989                  xR`+Xe+"C"+ot+" = vec4(previous.zw, xTexelR"+Xe+"C"+ot+`.xy);
990                } else {
991                  xR`+Xe+"C"+ot+" = vec4(0, 0, xTexelR"+Xe+"C"+ot+`.xy);
992                }
993              `:`
994                if(xR >= 0 && xR < `+E+" && xC >= 0 && xC < "+z+`) {
995                  xTexelR`+Xe+"C"+ot+` = getX(batch, xR, xC, d1);
996                } else {
997                  xTexelR`+Xe+"C"+ot+` = vec4(0.);
998                }
999
1000                xR`+Xe+"C"+ot+" = xTexelR"+Xe+"C"+ot+`;
1001              `,ot+1<Fe)){var kt=Z%2==0?Dt(De):De;De%2==0&&Z%2==1||De%2!=0&&Z%2!=1?(Je+=`
1002                  xCOffset = xC + `+Z%2+" + "+kt+`;
1003
1004                  if(xR >= 0 && xR < `+E+` &&
1005                    xCOffset >= 0 && xCOffset < `+z+`) {
1006                    xTexelR`+Xe+"C"+(ot+2)+` = getX(batch, xR, xCOffset, d1);
1007                  }
1008                `,De>1&&(Je+=`
1009                    xCOffset -= 2;
1010                    if(xR >= 0 && xR < `+E+` &&
1011                      xCOffset >= 0 && xCOffset < `+z+`) {
1012                      xTexelR`+Xe+"C"+ot+` = getX(batch, xR, xCOffset, d1);
1013                    } else {
1014                      xTexelR`+Xe+"C"+ot+` = vec4(0.);
1015                    }
1016                  `),Je+=`
1017                  xR`+Xe+"C"+(ot+1)+` = vec4(
1018                    xTexelR`+Xe+"C"+ot+".zw, xTexelR"+Xe+"C"+(ot+2)+`.xy);
1019                `):Je+=`
1020                  xCOffset = xC + `+kt+`;
1021
1022                  if(xR >= 0 && xR < `+E+` &&
1023                    xCOffset >= 0 && xCOffset < `+z+`) {
1024                    xTexelR`+Xe+"C"+(ot+2)+` = getX(batch, xR, xCOffset, d1);
1025                  }
1026
1027                  xR`+Xe+"C"+(ot+1)+" = xTexelR"+Xe+"C"+(ot+2)+`;
1028                `}}else ot<Fe&&(Je+=`
1029              if(xR >= 0 && xR < `+E+`) {
1030            `,Z%2==1?(Je+=`
1031                xCOffset = xC + 1 - `+de+`;
1032                if(xCOffset >= 0 && xCOffset < `+z+`) {
1033                  xTexelR`+Xe+"C"+ot+` = getX(batch, xR, xCOffset, d1);
1034                } else {
1035                  xTexelR`+Xe+"C"+ot+` = vec4(0.);
1036                }
1037
1038                if(xC + 1 >= 0 && xC + 1 < `+z+`) {
1039                  xTexelR`+Xe+"C"+(ot+2)+` = getX(batch, xR, xC + 1, d1);
1040                } else {
1041                  xTexelR`+Xe+"C"+(ot+2)+` = vec4(0.);
1042                }
1043
1044                xR`+Xe+"C"+ot+` = vec4(
1045                  xTexelR`+Xe+"C"+ot+".zw, xTexelR"+Xe+"C"+(ot+2)+`.zw);
1046              `,ot+1<Fe&&(Je+=`
1047                  vec4 final = vec4(0.);
1048                  xCOffset = xC + 1 + `+de+`;
1049                  if(xCOffset >= 0 && xCOffset < `+z+`) {
1050                    final = getX(batch, xR, xCOffset, d1);
1051                  }
1052                  xR`+Xe+"C"+(ot+1)+" = vec4(xTexelR"+Xe+"C"+(ot+2)+`.xy, final.xy);
1053                `)):(Je+=`
1054                if(xC >= 0 && xC < `+z+`) {
1055                  xTexelR`+Xe+"C"+ot+` = getX(batch, xR, xC, d1);
1056                } else {
1057                  xTexelR`+Xe+"C"+ot+` = vec4(0.);
1058                }
1059
1060                xCOffset = xC + `+de+`;
1061                if(xCOffset >= 0 && xCOffset < `+z+`) {
1062                  xTexelR`+Xe+"C"+(ot+2)+` = getX(batch, xR, xCOffset, d1);
1063                } else {
1064                  xTexelR`+Xe+"C"+(ot+2)+` = vec4(0.);
1065                }
1066
1067                xR`+Xe+"C"+ot+` = vec4(
1068                  xTexelR`+Xe+"C"+ot+".xy, xTexelR"+Xe+"C"+(ot+2)+`.xy);
1069              `,ot+1<Fe&&(Je+=`
1070                  xR`+Xe+"C"+(ot+1)+` = vec4(
1071                    xTexelR`+Xe+"C"+ot+".zw, xTexelR"+Xe+"C"+(ot+2)+`.zw);
1072                `)),Je+="}");ot<Fe&&(Je+=`
1073            vec4 wTexelR`+Xe+"C"+ot+" = getW("+Xe+", "+ot+`, d1, q);
1074            wR`+Xe+"C"+ot+" = vec4(wTexelR"+Xe+"C"+ot+".xz, wTexelR"+Xe+"C"+ot+`.xz);
1075          `,ot+1<Fe&&(Je+=`
1076              vec4 wTexelR`+Xe+"C"+(ot+1)+" = getW("+Xe+", "+(ot+1)+`, d1, q);
1077              wR`+Xe+"C"+(ot+1)+` =
1078                vec4(wTexelR`+Xe+"C"+(ot+1)+".xz, wTexelR"+Xe+"C"+(ot+1)+".xz);"))}for(Xe=0;Xe<Ne;Xe++)for(ot=0;ot<Fe;ot++)Je+="dotProd += xR"+Xe+"C"+ot+" * wR"+Xe+"C"+ot+";";var At="",Lt="";f&&(At=y?`vec4 activation(vec4 a) {
1079          vec4 b = getPreluActivationWeightsAtOutCoords();
1080          `+f+`
1081        }`:`vec4 activation(vec4 x) {
1082          `+f+`
1083        }`,Lt="result = activation(result);");var tn=m?"result += getBiasAtOutCoords();":"";m&&this.variableNames.push("bias"),y&&this.variableNames.push("preluActivationWeights"),this.userCode=`
1084      `+At+`
1085
1086      const ivec2 strides = ivec2(`+le+", "+de+`);
1087      const ivec2 pads = ivec2(`+Y+", "+Z+`);
1088
1089      void main() {
1090
1091        ivec4 coords = getOutputCoords();
1092        int batch = coords.x;
1093        ivec2 xRCCorner = coords.yz * strides - pads;
1094        int d2 = coords.w;
1095        int d1 = d2;
1096        int q = 0;
1097        int xRCorner = xRCCorner.x;
1098        int xCCorner = xRCCorner.y;
1099
1100        vec4 dotProd = vec4(0.);
1101
1102        `+Je+`
1103
1104        vec4 result = dotProd;
1105        `+tn+`
1106        `+Lt+`
1107        setOutput(result);
1108      }
1109    `};function Wv(_,m){if(_===1)return""+m;if(_===2)return m+".y";if(_===3)return m+".z";if(_===4)return m+".w";throw Error("Cumulative sum for rank "+_+" is not yet supported")}var Vv=function(){function _(m,f,y){this.variableNames=["x"],this.outputShape=[],this.outputShape=m,this.blockSize=f,this.dataFormat=y,this.userCode=`
1110    void main() {
1111      ivec4 coords = getOutputC

1111oords();
1112      int b = coords[0];
1113      int h = `+this.getHeightCoordString()+`;
1114      int w = `+this.getWidthCoordString()+`;
1115      int d = `+this.getDepthCoordString()+`;
1116
1117      int in_h = h / `+f+`;
1118      int offset_h = imod(h, `+f+`);
1119      int in_w = w / `+f+`;
1120      int offset_w = imod(w, `+f+`);
1121      int offset_d = (offset_h * `+f+` + offset_w) *
1122        `+this.getOutputDepthSize()+`;
1123      int in_d = d + offset_d;
1124
1125      float result = `+this.getInputSamplingString()+`;
1126      setOutput(result);
1127    }
1128  `}return _.prototype.getHeightCoordString=function(){return this.dataFormat==="NHWC"?"coords[1]":"coords[2]"},_.prototype.getWidthCoordString=function(){return this.dataFormat==="NHWC"?"coords[2]":"coords[3]"},_.prototype.getDepthCoordString=function(){return this.dataFormat==="NHWC"?"coords[3]":"coords[1]"},_.prototype.getOutputDepthSize=function(){return this.dataFormat==="NHWC"?this.outputShape[3]:this.outputShape[1]},_.prototype.getInputSamplingString=function(){return this.dataFormat==="NHWC"?"getX(b, in_h, in_w, in_d)":"getX(b, in_d, in_h, in_w)"},_}(),B0=function(_,m,f){this.variableNames=["real","imag"];var y=m[1];this.outputShape=m;var E=f?"2.0 * "+Math.PI:"-2.0 * "+Math.PI,z=f?y+".0":"1.0";this.userCode=`
1129      const float exponentMultiplier = `+E+`;
1130
1131      float unaryOpComplex(float real, float expR, float imag, float expI) {
1132        `+_+`
1133      }
1134
1135      float mulMatDFT(int batch, int index) {
1136        float indexRatio = float(index) / float(`+y+`);
1137        float exponentMultiplierTimesIndexRatio =
1138            exponentMultiplier * indexRatio;
1139
1140        float result = 0.0;
1141
1142        for (int i = 0; i < `+y+`; i++) {
1143          // x = (-2|2 * PI / N) * index * i;
1144          float x = exponentMultiplierTimesIndexRatio * float(i);
1145          float expR = cos(x);
1146          float expI = sin(x);
1147          float real = getReal(batch, i);
1148          float imag = getImag(batch, i);
1149
1150          result +=
1151              unaryOpComplex(real, expR, imag, expI) / `+z+`;
1152        }
1153
1154        return result;
1155      }
1156
1157      void main() {
1158        ivec2 coords = getOutputCoords();
1159        setOutput(mulMatDFT(coords[0], coords[1]));
1160      }
1161    `},P0=function(){function _(m,f){this.outputShape=[],this.variableNames=["x"],this.outputShape=m,this.userCode=`
1162      uniform float value;
1163      void main() {
1164        // Input can be obtained from uniform value.
1165        setOutput(value);
1166      }
1167    `}return _.prototype.getCustomSetupFunc=function(m){var f=this;return function(y,E){f.valueLoc==null&&(f.valueLoc=y.getUniformLocationNoThrow(E,"value")),y.gl.uniform1f(f.valueLoc,m)}},_}();function $v(_,m){var f=qo();return Eo(_,m,f.version+`
1168    precision highp float;
1169    `+f.attribute+` vec3 clipSpacePos;
1170    `+f.attribute+` vec2 uv;
1171    `+f.varyingVs+` vec2 resultUV;
1172
1173    void main() {
1174      gl_Position = vec4(clipSpacePos, 1);
1175      resultUV = uv;
1176    }`)}function j0(_,m){return Wl(_,m,new Float32Array([-1,1,0,0,1,-1,-1,0,0,0,1,1,0,1,1,1,-1,0,1,0]))}function Hv(_,m){return Jc(_,m,new Uint16Array([0,1,2,2,1,3]))}function xh(_,m,f,y,E,z,Y){Sm(f,y);var Z=Vl(_,m),le=_.TEXTURE_2D;return Hn(_,m,function(){return _.bindTexture(le,Z)}),Hn(_,m,function(){return _.texParameteri(le,_.TEXTURE_WRAP_S,_.CLAMP_TO_EDGE)}),Hn(_,m,function(){return _.texParameteri(le,_.TEXTURE_WRAP_T,_.CLAMP_TO_EDGE)}),Hn(_,m,function(){return _.texParameteri(le,_.TEXTURE_MIN_FILTER,_.NEAREST)}),Hn(_,m,function(){return _.texParameteri(le,_.TEXTURE_MAG_FILTER,_.NEAREST)}),Hn(_,m,function(){return _.texImage2D(le,0,E,f,y,0,z,Y,null)}),Hn(_,m,function(){return _.bindTexture(_.TEXTURE_2D,null)}),Z}function Gm(_,m,f,y,E){var z=ko(f,y);return xh(_,m,z[0],z[1],E.internalFormatFloat,E.textureFormatFloat,_.FLOAT)}function qv(_,m,f,y,E){var z=ko(f,y);return xh(_,m,z[0],z[1],E.internalFormatHalfFloat,E.textureFormatFloat,E.textureTypeHalfFloat)}function Gv(_,m,f,y,E){var z=ko(f,y);return xh(_,m,z[0],z[1],_.RGBA,_.RGBA,_.UNSIGNED_BYTE)}function Kv(_,m,f,y,E){var z=ai(f,y);return xh(_,m,z[0],z[1],E.internalFormatPackedFloat,_.RGBA,_.FLOAT)}function Jl(_,m,f,y,E){var z=ai(f,y);return xh(_,m,z[0],z[1],E.internalFormatPackedHalfFloat,_.RGBA,E.textureTypeHalfFloat)}function wh(_,m,f,y){return Hn(_,m,function(){return _.bindBuffer(_.ARRAY_BUFFER,y)}),Zd(_,m,f,"clipSpacePos",y,3,20,0)&&Zd(_,m,f,"uv",y,2,20,12)}function Km(_,m,f,y,E,z,Y){var Z,le,de;Hn(_,m,function(){return _.bindTexture(_.TEXTURE_2D,f)}),z instanceof Uint8Array?(Z=new Uint8Array(y*E*4),le=_.UNSIGNED_BYTE,de=_.RGBA):(Z=new Float32Array(y*E*4),le=_.FLOAT,de=Y.internalFormatPackedFloat),Z.set(z),Hn(_,m,function(){return _.texImage2D(_.TEXTURE_2D,0,de,y,E,0,_.RGBA,le,Z)}),Hn(_,m,function(){return _.bindTexture(_.TEXTURE_2D,null)})}function L0(_,m,f,y){Hn(_,m,function(){return _.bindTexture(_.TEXTURE_2D,f)}),y.data instanceof Uint8Array?Hn(_,m,function(){return _.texImage2D(_.TEXTURE_2D,0,_.RGBA,y.width,y.height,0,_.RGBA,_.UNSIGNED_BYTE,y.data)}):Hn(_,m,function(){return _.texImage2D(_.TEXTURE_2D,0,_.RGBA,_.RGBA,_.UNSIGNED_BYTE,y)}),Hn(_,m,function(){return _.bindTexture(_.TEXTURE_2D,null)})}function z0(_,m,f,y,E){var z=_.createBuffer();Hn(_,m,function(){return _.bindBuffer(_.PIXEL_PACK_BUFFER,z)});var Y=16*f*y;return Hn(_,m,function(){return _.bufferData(_.PIXEL_PACK_BUFFER,Y,_.STREAM_READ)}),Hn(_,m,function(){return _.readPixels(0,0,y,f,_.RGBA,_.FLOAT,0)}),Hn(_,m,function(){return _.bindBuffer(_.PIXEL_PACK_BUFFER,null)}),z}function g1(_,m,f){var y=_,E=new Float32Array(f);return y.bindBuffer(y.PIXEL_PACK_BUFFER,m),y.getBufferSubData(y.PIXEL_PACK_BUFFER,0,E),y.bindBuffer(y.PIXEL_PACK_BUFFER,null),E}function U0(_,m,f,y,E){var z=ko(f,y),Y=z[0],Z=z[1],le=new Uint8Array(f*y*4);return Hn(_,m,function(){return _.readPixels(0,0,Y,Z,E.downloadTextureFormat,_.UNSIGNED_BYTE,le)}),new Float32Array(le.buffer)}function Rp(_,m,f,y,E,z,Y,Z){var le=_,de=new Float32Array(function(we,De){var Ne=ai(z,Y);return Ne[0]*Ne[1]*4}());return le.bindBuffer(le.PIXEL_PACK_BUFFER,m),le.getBufferSubData(le.PIXEL_PACK_BUFFER,0,de),le.bindBuffer(le.PIXEL_PACK_BUFFER,null),de}function _h(_,m,f,y){var E=new Float32Array(f*y*4);return Hn(_,m,function(){return _.readPixels(0,0,y,f,_.RGBA,_.FLOAT,E)}),E}var Ql=Object.freeze({createVertexShader:$v,createVertexBuffer:j0,createIndexBuffer:Hv,createFloat32MatrixTexture:Gm,createFloat16MatrixTexture:qv,createUnsignedBytesMatrixTexture:Gv,createPackedMatrixTexture:Kv,createFloat16PackedMatrixTexture:Jl,bindVertexProgramAttributeStreams:wh,uploadDenseMatrixToTexture:Km,uploadPixelDataToTexture:L0,createBufferFromOutputTexture:z0,downloadFloat32MatrixFromBuffer:g1,downloadByteEncodedFloatMatrixFromOutputTexture:U0,downloadPackedMatrixFromBuffer:Rp,downloadMatrixFromPackedOutputTexture:_h}),W0=function(){function _(m){this.outputTexture=null,this.program=null,this.disposed=!1,this.vertexAttrsAreBound=!1,this.itemsToPoll=[];var f=L().getNumber("WEBGL_VERSION");m!=null?(this.gl=m,Lo(f,m)):this.gl=Ai(f);var y="WEBGL_color_buffer_float";if(L().getNumber("WEBGL_VERSION")===1){if(this.textureFloatExtension=Ko(this.gl,this.debug,"OES_texture_float"),Ja(this.gl,"OES_texture_half_float"))this.textureHalfFloatExtension=Ko(this.gl,this.debug,"OES_texture_half_float");else if(L().get("WEBGL_FORCE_F16_TEXTURES"))throw new Error("GL context does not support half float textures, yet the environment flag WEBGL_FORCE_F16_TEXTURES is set to true.");if(this.colorBufferFloatExtension=this.gl.getExtension(y),Ja(this.gl,"EXT_color_buffer_half_float"))this.colorBufferHalfFloatExtension=Ko(this.gl,this.debug,"EXT_color_buffer_half_float");else if(L().get("WEBGL_FORCE_F16_TEXTURES"))throw new Error("GL context does not support color renderable half floats, yet the environment flag WEBGL_FORCE_F16_TEXTURES is set to true.")}else if(y="EXT_color_buffer_float",Ja(this.gl,y))this.colorBufferFloatExtension=this.gl.getExtension(y);else{if(!Ja(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=j0(this.gl,this.debug),this.indexBuffer=Hv(this.gl,this.debug),this.framebuffer=Qs(this.gl,this.debug),this.textureConfig=Yr(this.gl,this.textureHalfFloatExtension)}return Object.defineProperty(_.prototype,"debug",{get:function(){return L().getBool("DEBUG")},enumerable:!0,configurable:!0}),_.prototype.dispose=function(){var m=this;if(!this.disposed){this.program!=null&&console.warn("Disposing a GPGPUContext that still has a bound WebGLProgram. This is probably a resource leak, delete the program with GPGPUContext.deleteProgram before disposing."),this.outputTexture!=null&&console.warn("Disposing a GPGPUContext that still has a bound output matrix texture.  This is probably a resource leak, delete the output matrix texture with GPGPUContext.deleteMatrixTexture before disposing.");var f=this.gl;Hn(f,this.debug,function(){return f.finish()}),Hn(f,this.debug,function(){return f.bindFramebuffer(f.FRAMEBUFFER,null)}),Hn(f,this.debug,function(){return f.deleteFramebuffer(m.framebuffer)}),Hn(f,this.debug,function(){return f.bindBuffer(f.ARRAY_BUFFER,null)}),Hn(f,this.debug,function(){return f.bindBuffer(f.ELEMENT_ARRAY_BUFFER,null)}),Hn(f,this.debug,function(){return f.deleteBuffer(m.indexBuffer)}),this.disposed=!0}},_.prototype.createFloat32MatrixTexture=function(m,f){return this.throwIfDisposed(),Gm(this.gl,this.debug,m,f,this.textureConfig)},_.prototype.createFloat16MatrixTexture=function(m,f){return this.throwIfDisposed(),qv(this.gl,this.debug,m,f,this.textureConfig)},_.prototype.createUnsignedBytesMatrixTexture=function(m,f){return this.throwIfDisposed(),Gv(this.gl,this.debug,m,f,this.textureConfig)},_.prototype.uploadPixelDataToTexture=function(m,f){this.throwIfDisposed(),L0(this.gl,this.debug,m,f)},_.prototype.uploadDenseMatrixToTexture=function(m,f,y,E){this.throwIfDisposed(),Km(this.gl,this.debug,m,f,y,E,this.textureConfig)},_.prototype.createFloat16PackedMatrixTexture=function(m,f){return this.throwIfDisposed(),Jl(this.gl,this.debug,m,f,this.textureConfig)},_.prototype.createPackedMatrixTexture=function(m,f){return this.throwIfDisposed(),Kv(this.gl,this.debug,m,f,this.textureConfig)},_.prototype.deleteMatrixTexture=function(m){var f=this;this.throwIfDisposed(),this.outputTexture===m&&(nd(this.gl,this.debug,this.framebuffer),this.outputTexture=null),Hn(this.gl,this.debug,function(){return f.gl.deleteTexture(m)})},_.prototype.downloadByteEncodedFloatMatrixFromOutputTexture=function(m,f,y){var E=this;

1176return this.downloadMatrixDriver(m,function(){return U0(E.gl,E.debug,f,y,E.textureConfig)})},_.prototype.downloadPackedMatrixFromBuffer=function(m,f,y,E,z,Y){return Rp(this.gl,m,0,0,0,z,Y,this.textureConfig)},_.prototype.downloadFloat32MatrixFromBuffer=function(m,f){return g1(this.gl,m,f)},_.prototype.createBufferFromTexture=function(m,f,y){this.bindTextureToFrameBuffer(m);var E=z0(this.gl,this.debug,f,y,this.textureConfig);return this.unbindTextureToFrameBuffer(),E},_.prototype.createAndWaitForFence=function(){var m=this.createFence(this.gl);return this.pollFence(m)},_.prototype.createFence=function(m){var f,y,E=this;if(L().getBool("WEBGL_FENCE_API_ENABLED")){var z=m,Y=z.fenceSync(z.SYNC_GPU_COMMANDS_COMPLETE,0);m.flush(),y=function(){var Z=z.clientWaitSync(Y,0,0);return Z===z.ALREADY_SIGNALED||Z===z.CONDITION_SATISFIED},f=Y}else L().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")>0?(f=this.beginQuery(),this.endQuery(),y=function(){return E.isQueryAvailable(f,L().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))}):y=function(){return!0};return{query:f,isFencePassed:y}},_.prototype.downloadMatrixFromPackedTexture=function(m,f,y){var E=this;return this.downloadMatrixDriver(m,function(){return _h(E.gl,E.debug,f,y)})},_.prototype.createProgram=function(m){this.throwIfDisposed();var f=this.gl,y=Yo(f,this.debug,m),E=$v(f,this.debug),z=fo(f,this.debug);return Hn(f,this.debug,function(){return f.attachShader(z,E)}),Hn(f,this.debug,function(){return f.attachShader(z,y)}),yl(f,this.debug,z),this.debug&&Tc(f,this.debug,z),this.vertexAttrsAreBound||(this.setProgram(z),this.vertexAttrsAreBound=wh(f,this.debug,this.program,this.vertexBuffer)),z},_.prototype.deleteProgram=function(m){var f=this;this.throwIfDisposed(),m===this.program&&(this.program=null),m!=null&&Hn(this.gl,this.debug,function(){return f.gl.deleteProgram(m)})},_.prototype.setProgram=function(m){var f=this;this.throwIfDisposed(),this.program=m,this.program!=null&&this.debug&&Tc(this.gl,this.debug,this.program),Hn(this.gl,this.debug,function(){return f.gl.useProgram(m)})},_.prototype.getUniformLocation=function(m,f,y){return y===void 0&&(y=!0),this.throwIfDisposed(),y?Qc(this.gl,this.debug,m,f):eh(this.gl,m,f)},_.prototype.getAttributeLocation=function(m,f){var y=this;return this.throwIfDisposed(),Hn(this.gl,this.debug,function(){return y.gl.getAttribLocation(m,f)})},_.prototype.getUniformLocationNoThrow=function(m,f){return this.throwIfDisposed(),this.gl.getUniformLocation(m,f)},_.prototype.setInputMatrixTexture=function(m,f,y){this.throwIfDisposed(),this.throwIfNoProgram(),mp(this.gl,this.debug,this.program,m,f,y)},_.prototype.setOutputMatrixTexture=function(m,f,y){this.setOutputMatrixTextureDriver(m,y,f)},_.prototype.setOutputPackedMatrixTexture=function(m,f,y){this.throwIfDisposed();var E=ai(f,y),z=E[0],Y=E[1];this.setOutputMatrixTextureDriver(m,z,Y)},_.prototype.setOutputMatrixWriteRegion=function(m,f,y,E){this.setOutputMatrixWriteRegionDriver(y,m,E,f)},_.prototype.setOutputPackedMatrixWriteRegion=function(m,f,y,E){throw new Error("setOutputPackedMatrixWriteRegion not implemented.")},_.prototype.debugValidate=function(){this.program!=null&&Tc(this.gl,this.debug,this.program),ys(this.gl)},_.prototype.executeProgram=function(){this.throwIfDisposed(),this.throwIfNoProgram();var m=this.gl;this.debug&&this.debugValidate(),Hn(m,this.debug,function(){return m.drawElements(m.TRIANGLES,6,m.UNSIGNED_SHORT,0)})},_.prototype.blockUntilAllProgramsCompleted=function(){var m=this;this.throwIfDisposed(),Hn(this.gl,this.debug,function(){return m.gl.finish()})},_.prototype.getQueryTimerExtension=function(){return this.disjointQueryTimerExtension==null&&(this.disjointQueryTimerExtension=Ko(this.gl,this.debug,L().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")===2?"EXT_disjoint_timer_query_webgl2":"EXT_disjoint_timer_query")),this.disjointQueryTimerExtension},_.prototype.getQueryTimerExtensionWebGL2=function(){return this.getQueryTimerExtension()},_.prototype.getQueryTimerExtensionWebGL1=function(){return this.getQueryTimerExtension()},_.prototype.beginQuery=function(){if(L().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")===2){var m=this.gl,f=this.getQueryTimerExtensionWebGL2(),y=m.createQuery();return m.beginQuery(f.TIME_ELAPSED_EXT,y),y}var E=this.getQueryTimerExtensionWebGL1(),z=E.createQueryEXT();return E.beginQueryEXT(E.TIME_ELAPSED_EXT,z),z},_.prototype.endQuery=function(){if(L().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")!==2){var m=this.getQueryTimerExtensionWebGL1();m.endQueryEXT(m.TIME_ELAPSED_EXT)}else{var f=this.gl,y=this.getQueryTimerExtensionWebGL2();f.endQuery(y.TIME_ELAPSED_EXT)}},_.prototype.waitForQueryAndGetTime=function(m){return S(this,void 0,void 0,function(){var f=this;return M(this,function(y){switch(y.label){case 0:return[4,_t(function(){return f.disposed||f.isQueryAvailable(m,L().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))})];case 1:return y.sent(),[2,this.getQueryTime(m,L().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))]}})})},_.prototype.getQueryTime=function(m,f){if(f===0)return null;if(f===2){var y=this.gl;return y.getQueryParameter(m,y.QUERY_RESULT)/1e6}var E=this.getQueryTimerExtensionWebGL1();return E.getQueryObjectEXT(m,E.QUERY_RESULT_EXT)/1e6},_.prototype.isQueryAvailable=function(m,f){if(f===0)return!0;if(f===2){var y=this.gl,E=this.getQueryTimerExtensionWebGL2(),z=y.getQueryParameter(m,y.QUERY_RESULT_AVAILABLE);return this.disjoint==null&&(this.disjoint=this.gl.getParameter(E.GPU_DISJOINT_EXT)),z&&!this.disjoint}return z=(E=this.getQueryTimerExtensionWebGL1()).getQueryObjectEXT(m,E.QUERY_RESULT_AVAILABLE_EXT),this.disjoint==null&&(this.disjoint=this.gl.getParameter(E.GPU_DISJOINT_EXT)),z&&!this.disjoint},_.prototype.pollFence=function(m){var f=this;return new Promise(function(y){f.addItemToPoll(function(){return m.isFencePassed()},function(){return y()})})},_.prototype.pollItems=function(){for(var m=function(y){for(var E=0;E<y.length&&y[E]();++E);return E-1}(this.itemsToPoll.map(function(y){return y.isDoneFn})),f=0;f<=m;++f)(0,this.itemsToPoll[f].resolveFn)();this.itemsToPoll=this.itemsToPoll.slice(m+1)},_.prototype.addItemToPoll=function(m,f){var y=this;this.itemsToPoll.push({isDoneFn:m,resolveFn:f}),this.itemsToPoll.length>1||_t(function(){return y.pollItems(),y.itemsToPoll.length===0})},_.prototype.bindTextureToFrameBuffer=function(m){this.throwIfDisposed(),$l(this.gl,this.debug,m,this.framebuffer),this.debug&&ys(this.gl)},_.prototype.unbindTextureToFrameBuffer=function(){this.outputTexture!=null?($l(this.gl,this.debug,this.outputTexture,this.framebuffer),this.debug&&ys(this.gl)):nd(this.gl,this.debug,this.framebuffer)},_.prototype.downloadMatrixDriver=function(m,f){this.bindTextureToFrameBuffer(m);var y=f();return this.unbindTextureToFrameBuffer(),y},_.prototype.setOutputMatrixTextureDriver=function(m,f,y){this.throwIfDisposed();var E=this.gl;$l(E,this.debug,m,this.framebuffer),this.debug&&ys(E),this.outputTexture=m,Hn(E,this.debug,function(){return E.viewport(0,0,f,y)}),Hn(E,this.debug,function(){return E.scissor(0,0,f,y)})},_.prototype.setOutputMatrixWriteRegionDriver=function(m,f,y,E){var z=this;this.throwIfDisposed(),Hn(this.gl,this.debug,function(){return z.gl.scissor(m,f,y,E)})},_.prototype.throwIfDisposed=function(){if(this.disposed)throw new Error("Attempted to use disposed GPGPUContext.")},_.prototype.throwIfNoProgram=function(){if(this.program==null)throw new Error("No GPU program is currently set.")},_}();function V0(_,m){if(_.length!==m.length)throw Error("Binary was compiled with "+_.length+" inputs, but was executed with "+m.length+" inputs");_.forEach(function(f,y){var E=f.logicalShape,z=m[y],Y=z.shape;if(!Tt(E,Y))throw Error("Binary was compiled with different shapes than the current args. Shapes "+E+" and "+Y+" must match");if(!f.isUniform||!z.isUniform){var Z=f.texShape,le=z.isUniform?null:z.texData.texShape;if(!Tt(Z,le))throw Error("Binary was compiled with different texture shapes than the current args. Shape "+Z+" and "+le+" must match")}})}var Lc=function(_,m,f,y,E,z,Y){f===void 0&&(f=!1),y===void 0&&(y=!1),E===void 0&&(E=!1),z===void 0&&(z=null),Y===void 0&&(Y=!1),this.variableNames=["matrixA","matrixB"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=m;var Z=f?_[1]:_[2],le=Math.ceil(Z/2),de=f?"i * 2, rc.y":"rc.y, i * 2",we=y?"rc.z, i * 2":"i * 2, rc.z",De=f?["a.xxyy","a.zzww"]:["a.xxzz","a.yyww"],Ne=y?["b.xzxz","b.ywyw"]:["b.xyxy","b.zwzw"],Fe="",Ve="";z&&(Fe=Y?`vec4 activation(vec4 a) {
1177          vec4 b = getPreluActivationWeightsAtOutCoords();
1178          `+z+`
1179        }`:`vec4 activation(vec4 x) {
1180          `+z+`
1181        }`,Ve="result = activation(result);");var Je=E?"result += getBiasAtOutCoords();":"";E&&this.variableNames.push("bias"),Y&&this.variableNames.push("preluActivationWeights"),this.userCode=`
1182      `+Fe+`
1183
1184      const float sharedDimension = `+le+`.0;
1185
1186      vec4 dot2x2ARowBCol(ivec3 rc) {
1187        vec4 result = vec4(0);
1188        for (int i = 0; i < `+le+`; i++) {
1189          vec4 a = getMatrixA(rc.x, `+de+`);
1190          vec4 b = getMatrixB(rc.x, `+we+`);
1191
1192          // These swizzled products need to be separately added.

1193          // See: https://github.com/tensorflow/tfjs/issues/1735
1194          result += (`+De[0]+" * "+Ne[0]+`);
1195          result += (`+De[1]+" * "+Ne[1]+`);
1196        }
1197        return result;
1198      }
1199
1200      void main() {
1201        ivec3 rc = getOutputCoords();
1202        vec4 result = dot2x2ARowBCol(rc);
1203
1204        `+Je+`
1205
1206        `+Ve+`
1207
1208        setOutput(result);
1209      }
1210    `},$0=function(){function _(m,f,y){this.variableNames=["probs"],this.outputShape=[m,y],this.userCode=`
1211      uniform float seed;
1212
1213      void main() {
1214        ivec2 coords = getOutputCoords();
1215        int batch = coords[0];
1216
1217        float r = random(seed);
1218        float cdf = 0.0;
1219
1220        for (int i = 0; i < `+(f-1)+`; i++) {
1221          cdf += getProbs(batch, i);
1222
1223          if (r < cdf) {
1224            setOutput(float(i));
1225            return;
1226          }
1227        }
1228
1229        // If no other event happened, last event happened.
1230        setOutput(float(`+(f-1)+`));
1231      }
1232    `}return _.prototype.getCustomSetupFunc=function(m){var f=this;return function(y,E){f.seedLoc==null&&(f.seedLoc=y.getUniformLocation(E,"seed")),y.gl.uniform1f(f.seedLoc,m)}},_}(),Bp=function(_,m,f,y,E){if(y===void 0&&(y=!1),E===void 0&&(E=!1),this.variableNames=["x"],m==="avg"&&f)throw new Error("Cannot compute positions for average pool.");var z=_.filterWidth,Y=_.strideHeight,Z=_.strideWidth,le=_.dilationHeight,de=_.dilationWidth,we=_.effectiveFilterHeight,De=_.effectiveFilterWidth,Ne=_.padInfo.top,Fe=_.padInfo.left;this.outputShape=_.outShape;var Ve=m==="avg",Je="((batch  * "+_.inHeight+" + xR) * "+_.inWidth+" + xC) * "+_.inChannels+" + d",Xe="(xR * "+_.inWidth+" + xC) * "+_.inChannels+" + d",ot="0.0";if(Ve||(ot="-1.0 / 1e-20"),f)this.userCode=`
1233        const ivec2 strides = ivec2(`+Y+", "+Z+`);
1234        const ivec2 pads = ivec2(`+Ne+", "+Fe+`);
1235
1236        void main() {
1237          ivec4 coords = getOutputCoords();
1238          int batch = coords[0];
1239          int d = coords[3];
1240
1241          ivec2 xRCCorner = coords.yz * strides - pads;
1242          int xRCorner = xRCCorner.x;
1243          int xCCorner = xRCCorner.y;
1244
1245          // max/min x(?, ?, d) to get y(yR, yC, d).
1246          // ? = to be determined
1247          float minMaxValue = 0.0;
1248          float minMaxValueFound = 0.0;
1249          int minMaxPosition = 0;
1250          float avgValue = 0.0;
1251
1252          for (int wR = 0; wR < `+we+`;
1253              wR += `+le+`) {
1254            int xR = xRCorner + wR;
1255
1256            if (xR < 0 || xR >= `+_.inHeight+`) {
1257              continue;
1258            }
1259
1260            for (int wC = 0; wC < `+De+`;
1261                wC += `+de+`) {
1262              int xC = xCCorner + wC;
1263
1264              if (xC < 0 || xC >= `+_.inWidth+`) {
1265                continue;
1266              }
1267
1268              float value = getX(batch, xR, xC, d);
1269
1270              // If a min / max value has already been found, use it. If not,
1271              // use the current value.
1272              float currMinMaxValue = mix(
1273                  value, minMaxValue, minMaxValueFound);
1274              if (value >= currMinMaxValue) {
1275                minMaxValue = value;
1276                minMaxValueFound = 1.0;
1277                minMaxPosition = `+(y?E?Je:Xe:"wR * "+De+" + wC")+`;
1278              }
1279            }
1280          }
1281          setOutput(float(minMaxPosition));
1282        }
1283      `;else{var xt=m+"("+m+"("+m+"(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])";m==="avg"&&(xt="avgValue / count");var kt=4*Math.floor(z/4),At=z%4,Lt=`
1284      if (`+Ve+`) {
1285        avgValue += dot(values, ones);
1286      } else {
1287        minMaxValue = max(values, minMaxValue);
1288      }
1289    `;this.userCode=`
1290      const ivec2 strides = ivec2(`+Y+", "+Z+`);
1291      const ivec2 pads = ivec2(`+Ne+", "+Fe+`);
1292      const float initializationValue = `+ot+`;
1293      const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0);
1294
1295      float count = 0.0;
1296
1297      float getValue(int batch, int xR, int xC, int d) {
1298        if (xC < 0 || xC >= `+_.inWidth+`) {
1299          return initializationValue;
1300        }
1301        count += 1.0;
1302        return getX(batch, xR, xC, d);
1303      }
1304
1305      void main() {
1306        ivec4 coords = getOutputCoords();
1307        int batch = coords[0];
1308        int d = coords[3];
1309
1310        ivec2 xRCCorner = coords.yz * strides - pads;
1311        int xRCorner = xRCCorner.x;
1312        int xCCorner = xRCCorner.y;
1313
1314        // max/min x(?, ?, d) to get y(yR, yC, d).
1315        // ? = to be determined
1316        vec4 minMaxValue = vec4(`+ot+`);
1317        float avgValue = 0.0;
1318        count = 0.0;
1319
1320        for (int wR = 0; wR < `+we+`;
1321            wR += `+le+`) {
1322          int xR = xRCorner + wR;
1323
1324          if (xR < 0 || xR >= `+_.inHeight+`) {
1325            continue;
1326          }
1327
1328          for (int wC = 0; wC < `+kt+`; wC += 4) {
1329            int xC = xCCorner + wC * `+de+`;
1330
1331            vec4 values = vec4(
1332              getValue(batch, xR, xC, d),
1333              getValue(batch, xR, xC + `+de+`, d),
1334              getValue(batch, xR, xC + 2 * `+de+`, d),
1335              getValue(batch, xR, xC + 3 * `+de+`, d)
1336            );
1337
1338            `+Lt+`
1339          }
1340
1341          int xC = xCCorner + `+kt+`;
1342          if (`+(At===1)+`) {
1343            vec4 values = vec4(
1344              getValue(batch, xR, xC, d),
1345              initializationValue,
1346              initializationValue,
1347              initializationValue
1348            );
1349
1350            `+Lt+`
1351          } else if (`+(At===2)+`) {
1352            vec4 values = vec4(
1353              getValue(batch, xR, xC, d),
1354              getValue(batch, xR, xC + `+de+`, d),
1355              initializationValue,
1356              initializationValue
1357            );
1358
1359            `+Lt+`
1360          } else if (`+(At===3)+`) {
1361            vec4 values = vec4(
1362              getValue(batch, xR, xC, d),
1363              getValue(batch, xR, xC + `+de+`, d),
1364              getValue(batch, xR, xC + 2 * `+de+`, d),
1365              initializationValue
1366            );
1367
1368            `+Lt+`
1369          }
1370        }
1371        setOutput(`+xt+`);
1372      }
1373    `}},Ym=function(_,m,f,y,E){if(y===void 0&&(y=!1),E===void 0&&(E=!1),this.variableNames=["x"],m==="avg"&&f)throw new Error("Cannot compute positions for average pool.");var z=_.filterWidth,Y=_.strideDepth,Z=_.strideHeight,le=_.strideWidth,de=_.dilationDepth,we=_.dilationHeight,De=_.dilationWidth,Ne=_.effectiveFilterDepth,Fe=_.effectiveFilterHeight,Ve=_.effectiveFilterWidth,Je=_.padInfo.front,Xe=_.padInfo.top,ot=_.padInfo.left;this.outputShape=_.outShape;var xt=m==="avg",kt="0.0";if(xt||(kt="-1.0 / 1e-20"),f)this.userCode=`
1374        const ivec3 strides =
1375            ivec3(`+Y+", "+Z+", "+le+`);
1376        const ivec3 pads = ivec3(`+Je+", "+Xe+", "+ot+`);
1377
1378        void main() {
1379          ivec5 coords = getOutputCoords();
1380          int batch = coords.x;
1381          int ch = coords.u;
1382
1383          ivec3 xCorner = ivec3(coords.y, coords.z, coords.w) * strides - pads;
1384          int xDCorner = xCorner.x;
1385          int xRCorner = xCorner.y;
1386          int xCCorner = xCorner.z;
1387
1388          // max/min x(?, ?, ?, ch) to get y(yD, yR, yC, ch).
1389          // ? = to be determined
1390          float minMaxValue = 0.0;
1391          float minMaxValueFound = 0.0;
1392          int minMaxPosition = 0;
1393
1394          for (int wD = 0; wD < `+Ne+`;
1395              wD += `+de+`) {
1396            int xD = xDCorner + wD;
1397
1398            if (xD < 0 || xD >= `+_.inDepth+`) {
1399              continue;
1400            }
1401
1402            for (int wR = 0; wR < `+Fe+`;
1403                wR += `+we+`) {
1404              int xR = xRCorner + wR;
1405
1406              if (xR < 0 || xR >= `+_.inHeight+`) {
1407                continue;
1408              }
1409
1410              for (int wC = 0; wC < `+Ve+`;
1411                  wC += `+De+`) {
1412                int xC = xCCorner + wC;
1413
1414                if (xC < 0 || xC >= `+_.inWidth+`) {
1415                  continue;
1416                }
1417
1418                float value = getX(batch, xD, xR, xC, ch);
1419
1420                // If a min / max value has already been found, use it. If not,
1421                // use the current value.
1422                float currMinMaxValue = mix(
1423                    value, minMaxValue, minMaxValueFound);
1424                if (value >= currMinMaxValue) {
1425                  minMaxValue = value;
1426                  minMaxValueFound = 1.0;
1427                  minMaxPosition = `+(y?E?"(((batch * "+_.inDepth+" + xD) * "+_.inHeight+" + xR) * "+_.inWidth+" + xC) * "+_.inChannels+" 

1427+ ch":"((xD * "+_.inHeight+" + xR) * "+_.inWidth+" + xC) * "+_.inChannels+" + ch":"wD * "+Fe+" * "+Ve+` +
1428                      wR * `+Ve+" + wC")+`;
1429                }
1430              }
1431            }
1432          }
1433          setOutput(float(minMaxPosition));
1434        }
1435      `;else{var At=m+"("+m+"("+m+"(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])";m==="avg"&&(At="avgValue / count");var Lt=4*Math.floor(z/4),tn=z%4,ln=`
1436      if (`+xt+`) {
1437        avgValue += dot(values, ones);
1438      } else {
1439        minMaxValue = max(values, minMaxValue);
1440      }
1441    `;this.userCode=`
1442      const ivec3 strides =
1443        ivec3(`+Y+", "+Z+", "+le+`);
1444      const ivec3 pads = ivec3(`+Je+", "+Xe+", "+ot+`);
1445      const float initializationValue = `+kt+`;
1446      const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0);
1447
1448      float count = 0.0;
1449
1450      float getValue(int batch, int xD, int xR, int xC, int ch) {
1451        if (xC < 0 || xC >= `+_.inWidth+`) {
1452          return initializationValue;
1453        }
1454        count += 1.0;
1455        return getX(batch, xD, xR, xC, ch);
1456      }
1457
1458      void main() {
1459        ivec5 coords = getOutputCoords();
1460        int batch = coords.x;
1461        int ch = coords.u;
1462
1463        ivec3 xCorner = ivec3(coords.y, coords.z, coords.w) * strides - pads;
1464        int xDCorner = xCorner.x;
1465        int xRCorner = xCorner.y;
1466        int xCCorner = xCorner.z;
1467
1468        // max/min x(?, ?, ?, d) to get y(yD, yR, yC, ch).
1469        // ? = to be determined
1470        vec4 minMaxValue = vec4(`+kt+`);
1471        float avgValue = 0.0;
1472        count = 0.0;
1473
1474        for (int wD = 0; wD < `+Ne+`;
1475            wD += `+de+`) {
1476          int xD = xDCorner + wD;
1477
1478          if (xD < 0 || xD >= `+_.inDepth+`) {
1479            continue;
1480          }
1481
1482          for (int wR = 0; wR < `+Fe+`;
1483            wR += `+we+`) {
1484            int xR = xRCorner + wR;
1485
1486            if (xR < 0 || xR >= `+_.inHeight+`) {
1487              continue;
1488            }
1489
1490            for (int wC = 0; wC < `+Lt+`; wC += 4) {
1491              int xC = xCCorner + wC * `+De+`;
1492
1493              vec4 values = vec4(
1494                getValue(batch, xD, xR, xC, ch),
1495                getValue(batch, xD, xR, xC + `+De+`, ch),
1496                getValue(batch, xD, xR, xC + 2 * `+De+`, ch),
1497                getValue(batch, xD, xR, xC + 3 * `+De+`, ch)
1498              );
1499
1500              `+ln+`
1501            }
1502
1503            int xC = xCCorner + `+Lt+`;
1504            if (`+(tn===1)+`) {
1505              vec4 values = vec4(
1506                getValue(batch, xD, xR, xC, ch),
1507                initializationValue,
1508                initializationValue,
1509                initializationValue
1510              );
1511
1512              `+ln+`
1513            } else if (`+(tn===2)+`) {
1514              vec4 values = vec4(
1515                getValue(batch, xD, xR, xC, ch),
1516                getValue(batch, xD, xR, xC + `+De+`, ch),
1517                initializationValue,
1518                initializationValue
1519              );
1520
1521              `+ln+`
1522            } else if (`+(tn===3)+`) {
1523              vec4 values = vec4(
1524                getValue(batch, xD, xR, xC, ch),
1525                getValue(batch, xD, xR, xC + `+De+`, ch),
1526                getValue(batch, xD, xR, xC + 2 * `+De+`, ch),
1527                initializationValue
1528              );
1529
1530              `+ln+`
1531            }
1532          }
1533          setOutput(`+At+`);
1534        }
1535      }
1536    `}},v1=function(_,m,f,y,E,z,Y){this.variableNames=["updates","indices","defaultValue"],this.outputShape=z;var Z=fa(E.length),le=fa(z.length),de="";f===1?de="i":f===2&&(de="i, j");var we="getIndices("+de+")",De="";y===1?De="i":y===2&&(De="i, coords[1]");var Ne="getUpdates("+De+")",Fe=m>1?"strides[j]":"strides";this.userCode=`
1537        `+Z+" strides = "+Z+"("+E+`);
1538
1539        void main() {
1540          `+le+` coords = getOutputCoords();
1541          float sum = 0.0;
1542          bool found = false;
1543          for (int i = 0; i < `+_+`; i++) {
1544            int flattenedIndex = 0;
1545            for (int j = 0; j < `+m+`; j++) {
1546              int index = round(`+we+`);
1547              flattenedIndex += index * `+Fe+`;
1548            }
1549            if (flattenedIndex == coords[0]) {
1550              sum += `+Ne+`;
1551              found = true;
1552            }
1553          }
1554          setOutput(mix(getDefaultValue(), sum, float(found)));
1555        }
1556      `},Xm=function(){function _(m){this.variableNames=["source"],this.outputShape=m,this.rank=m.length;var f,y=fa(this.rank),E="uniform int start["+this.rank+"];",z=function(Y){if(Y===1)return"sourceLoc";if(Y<=6)return Zl.slice(0,Y).map(function(Z){return"sourceLoc."+Z}).join(",");throw Error("Slicing for rank "+Y+" is not yet supported")}(this.rank);f=`
1557        `+y+` sourceLoc;
1558        `+y+` coords = getOutputCoords();
1559        `+m.map(function(Y,Z){return"sourceLoc."+Zl[Z]+" = start["+Z+"] + coords."+Zl[Z]+";"}).join(`
1560`)+`
1561      `,this.userCode=`
1562      `+E+`
1563      void main() {
1564        `+f+`
1565        setOutput(getSource(`+z+`));
1566      }
1567    `}return _.prototype.getCustomSetupFunc=function(m){var f=this;if(m.length!==this.rank)throw Error("The rank ("+this.rank+") of the program must match the length of start ("+m.length+")");return function(y,E){f.startLoc==null&&(f.startLoc=y.getUniformLocationNoThrow(E,"start"),f.startLoc==null)||y.gl.uniform1iv(f.startLoc,m)}},_}(),Zl=["x","y","z","w","u","v"],Jm=function(){function _(m){this.variableNames=["source"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=m,this.rank=m.length;var f=fa(this.rank),y=Za("coords",this.rank),E=Za("sourceLoc",this.rank),z=this.rank===1?"sourceLoc":"vec2("+E.slice(-2).join()+")",Y="getChannel(getSource("+E.join()+"), "+z+")",Z=`
1568      result.x = `+Y+`;
1569      if (++`+y[this.rank-1]+" < "+m[this.rank-1]+`) {
1570        ++`+E[this.rank-1]+`;
1571        result.y = `+Y+`;
1572        --`+E[this.rank-1]+`;
1573      }
1574    `,le=this.rank===1?"":`
1575      --`+y[this.rank-1]+`;
1576      if (++`+y[this.rank-2]+" < "+m[this.rank-2]+`) {
1577        ++`+E[this.rank-2]+`;
1578        result.z = `+Y+`;
1579        if (++`+y[this.rank-1]+" < "+m[this.rank-1]+`) {
1580          ++`+E[this.rank-1]+`;
1581          result.w = `+Y+`;
1582        }
1583      }

1584    `,de=this.rank<=4?`sourceLoc = coords +
1585            `+f+"("+m.map(function(we,De){return"start["+De+"]"}).join()+");":m.map(function(we,De){return E[De]+" = "+y[De]+" + start["+De+"];"}).join(`
1586`);this.userCode=`
1587      uniform int start[`+this.rank+`];
1588      void main() {
1589        `+f+` coords = getOutputCoords();
1590        `+f+` sourceLoc;
1591        `+de+`
1592        vec4 result = vec4(0.);
1593        `+Z+`
1594        `+le+`
1595        setOutput(result);
1596      }
1597    `}return _.prototype.getCustomSetupFunc=function(m){var f=this;if(m.length!==this.rank)throw Error("The rank ("+this.rank+") of the program must match the length of start ("+m.length+")");return function(y,E){f.startLoc==null&&(f.startLoc=y.getUniformLocationNoThrow(E,"start"),f.startLoc==null)||y.gl.uniform1iv(f.startLoc,m)}},_}(),Yv=function(){function _(m){this.gpgpu=m,this.numUsedTextures=0,this.numFreeTextures=0,this.freeTextures={},this.logEnabled=!1,this.usedTextures={}}return _.prototype.acquireTexture=function(m,f,y){var E,z=Xv(f,y),Y=H0(m,z,y);if(Y in this.freeTextures||(this.freeTextures[Y]=[]),Y in this.usedTextures||(this.usedTextures[Y]=[]),this.freeTextures[Y].length>0){this.numFreeTextures--,this.numUsedTextures++,this.log();var Z=this.freeTextures[Y].shift();return this.usedTextures[Y].push(Z),Z}return this.numUsedTextures++,this.log(),z===Zr.PACKED_2X2_FLOAT32?E=this.gpgpu.createPackedMatrixTexture(m[0],m[1]):z===Zr.PACKED_2X2_FLOAT16?E=this.gpgpu.createFloat16PackedMatrixTexture(m[0],m[1]):z===Zr.UNPACKED_FLOAT32?E=this.gpgpu.createFloat32MatrixTexture(m[0],m[1]):z===Zr.UNPACKED_FLOAT16?E=this.gpgpu.createFloat16MatrixTexture(m[0],m[1]):z===Zr.PACKED_4X1_UNSIGNED_BYTE&&(E=this.gpgpu.createUnsignedBytesMatrixTexture(m[0],m[1])),this.usedTextures[Y].push(E),E},_.prototype.releaseTexture=function(m,f,y,E){if(this.freeTextures!=null){var z=H0(f,Xv(y,E),E);z in this.freeTextures||(this.freeTextures[z]=[]),this.freeTextures[z].push(m),this.numFreeTextures++,this.numUsedTextures--;var Y=this.usedTextures[z],Z=Y.indexOf(m);if(Z<0)throw new Error("Cannot release a texture that was never provided by this texture manager");Y.splice(Z,1),this.log()}},_.prototype.log=function(){if(this.logEnabled){var m=this.numFreeTextures+this.numUsedTextures;console.log("Free/Used",this.numFreeTextures+" / "+this.numUsedTextures,"("+m+")")}},_.prototype.getNumUsedTextures=function(){return this.numUsedTextures},_.prototype.getNumFreeTextures=function(){return this.numFreeTextures},_.prototype.dispose=function(){var m=this;if(this.freeTextures!=null){for(var f in this.freeTextures)this.freeTextures[f].forEach(function(y){m.gpgpu.deleteMatrixTexture(y)});for(var f in this.usedTextures)this.usedTextures[f].forEach(function(E){m.gpgpu.deleteMatrixTexture(E)});this.freeTextures=null,this.usedTextures=null,this.numUsedTextures=0,this.numFreeTextures=0}},_}();function Xv(_,m){if(_===pr.UPLOAD)return Zr.PACKED_2X2_FLOAT32;if(_===pr.RENDER||_==null)return function(f){return L().getBool("WEBGL_RENDER_FLOAT32_ENABLED")?f?Zr.PACKED_2X2_FLOAT32:Zr.UNPACKED_FLOAT32:f?Zr.PACKED_2X2_FLOAT16:Zr.UNPACKED_FLOAT16}(m);if(_===pr.DOWNLOAD||_===pr.PIXELS)return Zr.PACKED_4X1_UNSIGNED_BYTE;throw new Error("Unknown logical texture type "+_)}function H0(_,m,f){return _[0]+"_"+_[1]+"_"+m+"_"+f}var Db=1.7580993408473768,Tb=1.0507009873554805,Fo=function(_,m){this.variableNames=["A"],this.outputShape=_,this.userCode=`
1598      float unaryOperation(float x) {
1599        `+m+`
1600      }
1601
1602      void main() {
1603        float x = getAAtOutCoords();
1604        float y = unaryOperation(x);
1605
1606        setOutput(y);
1607      }
1608    `},Jv="if (isnan(x)) return x;",Qv="return x;",Wg="return abs(x);",Zv=Jv+`
1609  return (x < 0.0) ? 0.0 : x;
1610`,Qm=Jv+`
1611  return (x < 0.0) ? 0.0 : min(6.0, x);
1612`,Tf="return (x >= 0.0) ? x : (exp(x) - 1.0);",Nf="return -x;",ey="return ceil(x);",ty="return floor(x);",Pp="return exp(x);",kh="return exp(x) - 1.0;",jp="return x;",Nb="return x;",Vg=`
1613  vec4 result = x * vec4(greaterThanEqual(x, vec4(0.0)));
1614  bvec4 isNaN = isnan(x);
1615
1616  result.r = isNaN.r ? x.r : result.r;
1617  result.g = isNaN.g ? x.g : result.g;
1618  result.b = isNaN.b ? x.b : result.b;
1619  result.a = isNaN.a ? x.a : result.a;
1620
1621  return result;
1622`,If=`
1623  vec4 result = min(x, vec4(6.)) * vec4(greaterThanEqual(x, vec4(0.0)));
1624  bvec4 isNaN = isnan(x);
1625
1626  result.r = isNaN.r ? x.r : result.r;
1627  result.g = isNaN.g ? x.g : result.g;
1628  result.b = isNaN.b ? x.b : result.b;
1629  result.a = isNaN.a ? x.a : result.a;
1630
1631  return result;
1632`,zc=`
1633  vec4 result;
1634
1635  result.r = (x.r >= 0.0) ? x.r : (exp(x.r) - 1.0);
1636  result.g = (x.g >= 0.0) ? x.g : (exp(x.g) - 1.0);
1637  result.b = (x.b >= 0.0) ? x.b : (exp(x.b) - 1.0);
1638  result.a = (x.a >= 0.0) ? x.a : (exp(x.a) - 1.0);
1639
1640  return result;
1641`,bd=function(_,m){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=_,this.userCode=`
1642      vec4 unaryOperation(vec4 x) {
1643        `+m+`
1644      }
1645
1646      void main() {
1647        vec4 x = getAAtOutCoords();
1648        vec4 y = unaryOperation(x);
1649
1650        setOutput(y);
1651      }
1652    `},xd={};function wd(_,m){if(m===void 0&&(m=!1),_==="linear")return m?Nb:Qv;if(_==="relu")return m?Vg:Zv;if(_==="elu")return m?zc:Tf;if(_==="relu6")return m?If:Qm;if(_==="prelu")return m?qs:Xl;throw new Error("Activation "+_+" has not been implemented for the WebGL backend.")}var ny=600,$g=function(_){function m(f){var y,E=_.call(this)||this;

1652if(E.pendingRead=new WeakMap,E.pendingDisposal=new WeakSet,E.dataRefCount=new WeakMap,E.numBytesInGPU=0,E.uploadWaitMs=0,E.downloadWaitMs=0,E.warnedAboutMemory=!1,E.pendingDeletes=0,E.disposed=!1,!L().getBool("HAS_WEBGL"))throw new Error("WebGL is not supported on this device");if(f==null){var z=Ai(L().getNumber("WEBGL_VERSION"));E.binaryCache=((y=L().getNumber("WEBGL_VERSION"))in xd||(xd[y]={}),xd[y]),E.gpgpu=new W0(z),E.canvas=z.canvas,E.gpgpuCreatedLocally=!0}else E.gpgpu=f,E.binaryCache={},E.gpgpuCreatedLocally=!1,E.canvas=f.gl.canvas;return E.textureManager=new Yv(E.gpgpu),E.numMBBeforeWarning=L().global.screen==null?1024:L().global.screen.height*L().global.screen.width*window.devicePixelRatio*ny/1024/1024,E.texData=new qt(E,qe),E}return A(m,_),m.prototype.numDataIds=function(){return this.texData.numDataIds()+(this.cpuBackend?this.cpuBackend.numDataIds():0)-this.pendingDeletes},m.prototype.write=function(f,y,E){if(L().getBool("DEBUG")&&this.checkNumericalProblems(f),E==="complex64"&&f!=null)throw new Error("Cannot write to a complex64 dtype. Please use tf.complex(real, imag).");var z={};return this.texData.set(z,{shape:y,dtype:E,values:f,usage:pr.UPLOAD}),z},m.prototype.move=function(f,y,E,z){if(L().getBool("DEBUG")&&this.checkNumericalProblems(y),z==="complex64")throw new Error("Cannot write to a complex64 dtype. Please use tf.complex(real, imag).");this.texData.set(f,{shape:E,dtype:z,values:y,usage:pr.UPLOAD})},m.prototype.readSync=function(f){var y=this.texData.get(f),E=y.values,z=y.dtype,Y=y.complexTensors,Z=y.slice,le=y.shape,de=y.isPacked;if(Z!=null){var we;we=de?new bd(le,jp):new Fo(le,jp);var De=this.runWebGLProgram(we,[{dataId:f,shape:le,dtype:z}],z),Ne=this.readSync(De.dataId);return this.disposeData(De.dataId),Ne}if(E!=null)return this.convertAndCacheOnCPU(f);if(z==="string")return E;var Fe,Ve,Je=this.activeTimers!=null;return Je&&(Fe=fn()),Ve=z==="complex64"?wi(Y.real.dataSync(),Y.imag.dataSync()):this.getValuesFromTexture(f),Je&&(this.downloadWaitMs+=fn()-Fe),this.convertAndCacheOnCPU(f,Ve)},m.prototype.read=function(f){return S(this,void 0,void 0,function(){var y,E,z,Y,Z,le,de,we,De,Ne,Fe,Ve,Je,Xe,ot,xt,kt,At,Lt,tn,ln,nn;return M(this,function(cn){switch(cn.label){case 0:if(this.pendingRead.has(f))return y=this.pendingRead.get(f),[2,new Promise(function(Dn){return y.push(Dn)})];if(E=this.texData.get(f),z=E.values,Y=E.shape,Z=E.slice,le=E.dtype,de=E.complexTensors,we=E.isPacked,Z!=null)return De=void 0,De=we?new bd(Y,jp):new Fo(Y,jp),Ne=this.runWebGLProgram(De,[{dataId:f,shape:Y,dtype:le}],le),Fe=this.read(Ne.dataId),this.disposeData(Ne.dataId),[2,Fe];if(z!=null)return[2,this.convertAndCacheOnCPU(f)];if(!L().getBool("WEBGL_DOWNLOAD_FLOAT_ENABLED")&&L().getNumber("WEBGL_VERSION")===2)throw new Error("tensor.data() with WEBGL_DOWNLOAD_FLOAT_ENABLED=false and WEBGL_VERSION=2 not yet supported.");return Ve=null,le!=="complex64"&&L().get("WEBGL_BUFFER_SUPPORTED")&&(Je=this.decode(f),Xe=this.texData.get(Je.dataId),Ve=(nn=this.gpgpu).createBufferFromTexture.apply(nn,[Xe.texture].concat(Ji(Y)))),this.pendingRead.set(f,[]),le==="complex64"?[3,2]:[4,this.gpgpu.createAndWaitForFence()];case 1:cn.sent(),cn.label=2;case 2:return le!=="complex64"?[3,4]:[4,Promise.all([de.real.data(),de.imag.data()])];case 3:return xt=cn.sent(),kt=xt[0],At=xt[1],ot=wi(kt,At),[3,5];case 4:Ve==null?ot=this.getValuesFromTexture(f):(Lt=Ke(Y),ot=this.gpgpu.downloadFloat32MatrixFromBuffer(Ve,Lt)),cn.label=5;case 5:return Je!=null&&this.disposeData(Je.dataId),tn=this.convertAndCacheOnCPU(f,ot),ln=this.pendingRead.get(f),this.pendingRead.delete(f),ln.forEach(function(Dn){return Dn(tn)}),this.pendingDisposal.has(f)&&(this.pendingDisposal.delete(f),this.disposeData(f),this.pendingDeletes--),[2,tn]}})})},m.prototype.checkNumericalProblems=function(f){if(f!=null)for(var y=0;y<f.length;y++){var E=f[y];if(!Kr(E))throw L().getBool("WEBGL_RENDER_FLOAT32_CAPABLE")?Error("The value "+E+" cannot be represented with your current settings. Consider enabling float32 rendering: 'tf.env().set('WEBGL_RENDER_FLOAT32_ENABLED', true);'"):Error("The value "+E+" cannot be represented on this device.")}},m.prototype.getValuesFromTexture=function(f){var y,E=this.texData.get(f),z=E.shape,Y=E.dtype,Z=E.isPacked,le=Ke(z);if(L().getBool("WEBGL_DOWNLOAD_FLOAT_ENABLED")){var de=this.decode(f),we=this.texData.get(de.dataId),De=(y=this.gpgpu).downloadMatrixFromPackedTexture.apply(y,[we.texture].concat(Ji(z))).subarray(0,le);return this.disposeData(de.dataId),De}var Ne=L().getBool("WEBGL_PACK")&&Z===!0,Fe=Ne?xl(z):z,Ve=Ne?new function(xt){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!1,this.outTexUsage=pr.DOWNLOAD;var kt=qo();this.outputShape=xt,this.userCode=`
1653      `+ru+`
1654
1655      void main() {
1656        ivec3 coords = getOutputCoords();
1657        float x = getChannel(getAAtOutCoords(), vec2(coords.y, coords.z));
1658        `+kt.output+` = encode_float(x);
1659      }
1660    `}(Fe):new function(xt){this.variableNames=["A"],this.outTexUsage=pr.DOWNLOAD;var kt=qo();this.outputShape=xt,this.userCode=`
1661      `+ru+`
1662
1663      void main() {
1664        float x = getAAtOutCoords();
1665        `+kt.output+` = encode_float(x);
1666      }
1667    `}(Fe),Je=this.runWebGLProgram(Ve,[{shape:Fe,dtype:Y,dataId:f}],"float32"),Xe=this.texData.get(Je.dataId),ot=this.gpgpu.downloadByteEncodedFloatMatrixFromOutputTexture(Xe.texture,Xe.texShape[0],Xe.texShape[1]).subarray(0,le);return this.disposeData(Je.dataId),ot},m.prototype.time=function(f){return S(this,void 0,void 0,function(){var y,E,z,Y,Z,le,de;return M(this,function(we){switch(we.label){case 0:return y=this.activeTimers,E=[],z=!1,this.programTimersStack==null?(this.programTimersStack=E,z=!0):this.activeTimers.push(E),this.activeTimers=E,f(),Y=Mt(this.activeTimers.map(function(De){return De.query})).filter(function(De){return De!=null}),Z=Mt(this.activeTimers.map(function(De){return De.name})).filter(function(De){return De!=null}),this.activeTimers=y,z&&(this.programTimersStack=null),le={uploadWaitMs:this.uploadWaitMs,downloadWaitMs:this.downloadWaitMs,kernelMs:null,wallMs:null},L().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0?[4,Promise.all(Y)]:[3,2];case 1:return de=we.sent(),le.kernelMs=Ut(de),le.getExtraProfileInfo=function(){return de.map(function(De,Ne){return{name:Z[Ne],ms:De}}).map(function(De){return De.name+": "+De.ms}).join(", ")},[3,3];case 2:le.kernelMs={error:"WebGL query timers are not supported in this environment."},we.label=3;case 3:return this.uploadWaitMs=0,this.downloadWaitMs=0,[2,le]}})})},m.prototype.memory=function(){return{unreliable:!1,numBytesInGPU:this.numBytesInGPU}},m.prototype.startTimer=function(){return L().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0?this.gpgpu.beginQuery():{startMs:fn(),endMs:null}},m.prototype.endTimer=function(f){return L().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0?(this.gpgpu.endQuery(),f):(f.endMs=fn(),f)},m.prototype.getQueryTime=function(f){return S(this,void 0,void 0,function(){var y;return M(this,function(E){return L().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0?[2,this.gpgpu.waitForQueryAndGetTime(f)]:[2,(y=f).endMs-y.startMs]})})},m.prototype.disposeData=function(f){if(!this.pendingDisposal.has(f)){if(this.pendingRead.has(f))return this.pendingDisposal.add(f),void this.pendingDeletes++;if(this.texData.has(f)){this.releaseGPUData(f);var y=this.texData.get(f).complexTensors;y!=null&&(y.real.dispose(),y.imag.dispose()),this.texData.delete(f)}}},m.prototype.releaseGPUData=function(f){var y=this.texData.get(f),E=y.texture,z=y.dtype,Y=y.texShape,Z=y.usage,le=y.isPacked,de=y.slice,we=de&&de.origDataId||f,De=this.dataRefCount.get(we);De>1?this.dataRefCount.set(we,De-1):(this.dataRefCount.delete(we),E!=null&&(this.numBytesInGPU-=this.computeBytes(Y,z),this.textureManager.releaseTexture(E,Y,Z,le)));var Ne=this.texData.get(f);Ne.texture=null,Ne.texShape=null,Ne.isPacked=!1,Ne.slice=null},m.prototype.getTexture=function(f){return this.uploadToGPU(f),this.texData.get(f).texture},m.prototype.getDataInfo=function(f){return this.texData.get(f)},m.prototype.getCPUBackend=function(){return L().getBool("WEBGL_CPU_FORWARD")?(this.cpuBackend==null&&(this.cpuBackend=qe.findBackend("cpu")),this.cpuBackend):null},m.prototype.shouldExecuteOnCPU=function(f,y){var E=this;return y===void 0&&(y=128),this.getCPUBackend()!=null&&f.every(function(z){return E.texData.get(z.dataId).texture==null&&Ke(z.shape)<y})},m.prototype.getGPGPUContext=function(){return this.gpgpu},m.prototype.complex=function(f,y){var E=this.makeOutput(f.shape,"complex64");return this.texData.get(E.dataId).complexTensors={real:qe.keep(f.clone()),imag:qe.keep(y.clone())},E},m.prototype.real=function(f){return this.texData.get(f.dataId).complexTensors.real.clone()},m.prototype.imag=function(f){return this.texData.get(f.dataId).complexTensors.imag.clone()},m.prototype.slice=function(f,y,E){if(this.shouldExecuteOnCPU([f]))return this.cpuBackend.slice(f,y,E);if(Ke(E)===0)return Qo([],E,f.dtype);var z=this.texData.get(f.dataId).isPacked,Y=Fp(f.shape,y,E);if(z||!Y){var Z=L().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new Jm(E):new Xm(E),le=Z.getCustomSetupFunc(y);return this.compileAndRun(Z,[f],null,le)}return this.uploadToGPU(f.dataId),this.shallowSlice(f,y,E)},m.prototype.shallowSlice=function(f,y,E){var z=this.texData.get(f.dataId),Y=this.makeOutput(E,f.dtype),Z=this.texData.get(Y.dataId);Object.assign(Z,z),Z.shape=E,Z.dtype=f.dtype;var le=vh(y,f.strides);z.slice&&(le+=z.slice.flatOffset),Z.slice={flatOffset:le,origDataId:z.slice&&z.slice.origDataId||f.dataId};var de=this.dataRefCount.get(Z.slice.origDataId)||1;return this.dataRefCount.set(Z.slice.origDataId,de+1),Y},m.prototype.stridedSlice=function(f,y,E,z){if(this.shouldExecuteOnCPU([f]))return this.cpuBackend.stridedSlice(f,y,E,z);var Y=Bc(y,E,z);if(Y.some(function(le){return le===0}))return Qo([],Y);var Z=new function(le,de,we){this.variableNames=["x"],this.outputShape=we;var De=we.length,Ne=fa(we.length),Fe=fa(we.length),Ve="";if(De===1)Ve="coords * strides + begin";else{var Je=0;Ve=we.map(function(Xe,ot){return Je++,we.length===1?"coords * strides["+ot+"] + begin["+ot+"]":"coords["+(Je-1)+"] * strides["+ot+"] + begin["+ot+"]"}).join(",")}this.userCode=`
1668      `+Ne+" begin = "+Ne+"("+le+`);
1669      `+Ne+" strides = "+Ne+"("+de+`);
1670
1671      void main() {
1672        `+Fe+` coords = getOutputCoords();
1673        setOutput(getX(`+Ve+`));
1674      }
1675    `}(y,z,Y);return this.compileAndRun(Z,[f])},m.prototype.reverse=function(f,y){var E=L().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new function(z,Y){this.variableNames=["x"],this.packedInputs=!0,this.packedOutput=!0;var Z=z.length;if(Z>4)throw new Error("WebGL backend: Reverse of rank-"+Z+" tensor is not yet supported");this.outputShape=z;var le=Za("rc",Z),de=le[Z-1]+" + 1 < "+this.outputShape[Z-1],we=le[Z-2]+" + 1 < "+this.outputShape[Z-2],De=fa(Z);function Ne(Fe){var Ve=z.map(function(Je,Xe){return function(ot,xt){return Y.indexOf(ot)!==-1&&z[ot]!==1?z[ot]+" - "+xt[ot]+" - 1":""+xt[ot]}(Xe,Fe)});return"getChannel(getX("+Ve.join(",")+"), vec2("+Ve.slice(-2).join(",")+"))"}this.userCode=Z===1?`
1676        void main(){
1677          int rc = getOutputCoords();
1678          vec4 result = vec4(0.);
1679          result.r = getChannel(getX(`+z[0]+` - rc - 1),
1680            `+z[0]+` - rc - 1);
1681          if(`+de+`){
1682              result.g = getChannel(getX(`+z[0]+` - (rc  + 1) - 1),
1683                `+z[0]+` - (rc  + 1) - 1);
1684          }
1685          setOutput(result);
1686        }
1687      `:`
1688        void main() {
1689          `+De+` rc = getOutputCoords();
1690          vec4 result = vec4(0.);
1691          result.r = `+Ne(le.slice())+`;
1692          if(`+de+`){
1693            result.g = `+function(Fe){return Fe[Z-1]="("+Fe[Z-1]+" + 1)",Ne(Fe)}(le.slice())+`;
1694          }
1695          if(`+we+`) {
1696            result.b = `+function(Fe){return Fe[Z-2]="("+Fe[Z-2]+" + 1)",Ne(Fe)}(le.slice())+`;
1697            if(`+de+`) {
1698              result.a = `+function(Fe){return Fe[Z-1]="("+Fe[Z-1]+" + 1)",Fe[Z-2]="("+Fe[Z-2]+" + 1)",Ne(Fe)}(le.slice())+`;
1699            }
1700          }
1701          setOutput(result);
1702        }
1703    `}(f.shape,y):new function(z,Y){this.variableNames=["x"];var Z=z.length;if(Z>4)throw new Error("WebGL backend: Reverse of rank-"+Z+" tensor is not yet supported");if(this.outputShape=z,Z!==1){var le=z.map(function(we,De){return function(Ne){return Y.indexOf(Ne)!==-1&&z[Ne]!==1?z[Ne]+" - coords["+Ne+"] - 1":"coords["+Ne+"]"}(De)}).join(","),de=fa(Z);this.userCode=`
1704      void main() {
1705        `+de+` coords = getOutputCoords();
1706        setOutput(getX(`+le+`));
1707      }
1708    `}else this.userCode=`
1709        void main() {
1710          int coord = getOutputCoords();
1711          setOutput(getX(`+z[0]+` - coord - 1));
1712        }
1713      `}(f.shape,y);return this.compileAndRun(E,[f])},m.prototype.concat=function(f,y){if(f[0].dtype==="complex64"){var E=f.map(function(Fe){return qa(Fe)}),z=f.map(function(Fe){return Os(Fe)});return zo(this.concat(E,y),this.concat(z,y))}if(this.shouldExecuteOnCPU(f))return this.cpuBackend.concat(f,y);if(f.length===1)return f[0];if(f.length>L().getNumber("WEBGL_MAX_TEXTURES_IN_SHADER")){var Y=Math.floor(f.length/2),Z=this.concat(f.slice(0,Y),y),le=this.concat(f.slice(Y),y);return this.concat([Z,le],y)}if(L().getBool("WEBGL_PACK_ARRAY_OPERATIONS")&&f[0].rank>1){var de=new function(Fe,Ve){this.packedInputs=!0,this.packedOutput=!0,this.outputShape=[],this.outputShape=sc(Fe,Ve);var Je=this.outputShape,Xe=Je.length,ot=fa(Xe),xt=Za("coords",Xe),kt=["x","y","z","w","u","v"].slice(0,Xe);this.variableNames=Fe.map(function(tr,ur){return"T"+ur});var At=new Array(Fe.length-1);At[0]=Fe[0][Ve];for(var Lt=1;Lt<At.length;Lt++)At[Lt]=At[Lt-1]+Fe[Lt][Ve];var tn=kt[Ve],ln=kt.slice(-2),nn=kt.join(),cn="if ("+tn+" < "+At[0]+`) {
1714        return getChannel(
1715            getT0(`+nn+"), vec2("+ln.join()+`));
1716        }`;for(Lt=1;Lt<At.length;Lt++){var Dn=At[Lt-1];cn+=`
1717        if (`+tn+" < "+At[Lt]+"  && "+tn+" >= "+At[Lt-1]+`) {
1718          return getChannel(
1719            getT`+Lt+"("+Oi(kt,tn,Dn)+`),
1720            vec2(`+Oi(ln,tn,Dn)+`));
1721        }`}var Rn=At.length,Mn=At[At.length-1];cn+=`
1722        return getChannel(
1723          getT`+Rn+"("+Oi(kt,tn,Mn)+`),
1724          vec2(`+Oi(ln,tn,Mn)+"));",this.userCode=`
1725      float getValue(`+kt.map(function(tr){return"int "+tr})+`) {
1726        `+cn+`
1727      }
1728
1729      void main() {
1730        `+ot+` coords = getOutputCoords();
1731        vec4 result = vec4(getValue(`+xt+`), 0., 0., 0.);
1732
1733        `+xt[Xe-1]+" = "+xt[Xe-1]+` + 1;
1734        if (`+xt[Xe-1]+" < "+Je[Xe-1]+`) {
1735          result.g = getValue(`+xt+`);
1736        }
1737
1738        `+xt[Xe-2]+" = "+xt[Xe-2]+` + 1;
1739        if (`+xt[Xe-2]+" < "+Je[Xe-2]+`) {
1740          result.a = getValue(`+xt+`);
1741        }
1742
1743        `+xt[Xe-1]+" = "+xt[Xe-1]+` - 1;
1744        if (`+xt[Xe-2]+" < "+Je[Xe-2]+` &&
1745            `+xt[Xe-1]+" < "+Je[Xe-1]+`) {
1746          result.b = getValue(`+xt+`);
1747        }
1748        setOutput(result);
1749      }
1750    `}(f.map(function(Fe){return Fe.shape}),y);return this.compileAndRun(de,f)}var we=sc(f.map(function(Fe){return Fe.shape}),y),De=f.map(function(Fe){return Fe.as2D(-1,Ke(Fe.shape.slice(y)))}),Ne=new function(Fe){this.outputShape=[],this.outputShape=sc(Fe,1),this.variableNames=Fe.map(function(At,Lt){return"T"+Lt});var Ve=new Array(Fe.length-1);Ve[0]=Fe[0][1];for(var Je=1;Je<Ve.length;Je++)Ve[Je]=Ve[Je-1]+Fe[Je][1];var Xe=["if (yC < "+Ve[0]+") setOutput(getT0(yR, yC));"];for(Je=1;Je<Ve.length;Je++){var ot=Ve[Je-1];Xe.push("else if (yC < "+Ve[Je]+") setOutput(getT"+Je+"(yR, yC-"+ot+"));")}var xt=Ve.length,kt=Ve[Ve.length-1];Xe.push("else setOutput(getT"+xt+"(yR, yC-"+kt+"));"),this.userCode=`
1751      void main() {
1752        ivec2 coords = getOutputCoords();
1753        int yR = coords.x;
1754        int yC = coords.y;
1755
1756        `+Xe.join(`
1757        `)+`
1758      }
1759    `}(De.map(function(Fe){return Fe.shape}));return this.compileAndRun(Ne,De).reshape(we)},m.prototype.neg=function(f){if(this.shouldExecuteOnCPU([f]))return this.cpuBackend.neg(f);if(L().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(f,Nf,f.dtype);var y=new Fo(f.shape,Nf);return this.compileAndRun(y,[f])},m.prototype.batchMatMul=function(f,y,E,z){var Y=E?f.shape[2]:f.shape[1],Z=z?y.shape[1]:y.shape[2],le=E?f.shape[1]:f.shape[2],de=f.shape[0];if((Y===1||Z===1)&&le>1e3){E&&(f=wt(f,[0,2,1])),z&&(y=wt(y,[0,2,1]));var we=Z===1?f:f.as3D(de,le,1),De=Z===1?2:1,Ne=Z===1?y.as3D(de,1,le):y;return this.multiply(we,Ne).sum(De,!0)}var Fe=kn(f.dtype,y.dtype),Ve=new Lc(f.shape,[de,Y,Z],E,z);return this.compileAndRun(Ve,[f,y],Fe)},m.prototype.fusedBatchMatMul=function(f){var y=f.a,E=f.b,z=f.transposeA,Y=f.transposeB,Z=f.bias,le=f.activation,de=f.preluActivationWeights,we=z?y.shape[2]:y.shape[1],De=Y?E.shape[1]:E.shape[2],Ne=y.shape[0],Fe=kn(y.dtype,E.dtype),Ve=Z!=null,Je=de!=null,Xe=le?wd(le,!0):null,ot=new Lc(y.shape,[Ne,we,De],z,Y,Ve,Xe,Je),xt=[y,E];return Z&&xt.push(Z),de&&xt.push(de),this.compileAndRun(ot,xt,Fe)},m.prototype.multiply=function(f,y){if(f.dtype==="complex64"){var E=this.texData.get(f.dataId),z=this.texData.get(y.dataId),Y=new Do("return areal * breal - aimag * bimag;",f.shape,y.shape),Z=new Do("return areal * bimag + aimag * breal;",f.shape,y.shape),le=[this.makeComplexComponentTensorInfo(f,E.complexTensors.real),this.makeComplexComponentTensorInfo(f,E.complexTensors.imag),this.makeComplexComponentTensorInfo(y,z.complexTensors.real),this.makeComplexComponentTensorInfo(y,z.complexTensors.imag)],de=this.compileAndRun(Y,le),we=this.compileAndRun(Z,le),De=this.complex(de,we);return de.dispose(),we.dispose(),De}if(this.shouldExecuteOnCPU([f,y]))return this.cpuBackend.multiply(f,y);if(L().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(f,y,Ju,f.dtype);var Ne=new xa(Ju,f.shape,y.shape);return this.compileAndRun(Ne,[f,y],f.dtype)},m.prototype.batchNormalization=function(f,y,E,z,Y,Z){var le=[f,y,E],de=null;Z!=null&&(de=Z.shape,le.push(Z));var we=null;if(Y!=null&&(we=Y.shape,le.push(Y)),L().getBool("WEBGL_PACK_NORMALIZATION")){var De=new function(Fe,Ve,Je,Xe,ot,xt){this.packedInputs=!0,this.packedOutput=!0,this.variableNames=["x","mean","variance"],no(Fe,Ve),no(Fe,Je);var kt="vec4(0.0)";Xe!=null&&(no(Fe,Xe),this.variableNames.push("offset"),kt="getOffsetAtOutCoords()");var At="vec4(1.0)";ot!=null&&(no(Fe,ot),this.variableNames.push("scale"),At="getScaleAtOutCoords()"),this.outputShape=Fe,this.userCode=`
1760      void main() {
1761        vec4 offset = `+kt+`;
1762        vec4 scale = `+At+`;
1763
1764        vec4 x = getXAtOutCoords();
1765        vec4 mean = getMeanAtOutCoords();
1766        vec4 variance = getVarianceAtOutCoords();
1767
1768        vec4 inv = scale * inversesqrt(variance + vec4(`+xt+`));
1769
1770        setOutput((x - mean) * inv + offset);
1771      }
1772    `}(f.shape,y.shape,E.shape,de,we,z);return this.compileAndRun(De,le)}var Ne=new function(Fe,Ve,Je,Xe,ot,xt){this.outputShape=[],this.variableNames=["x","mean","variance"],no(Fe,Ve),no(Fe,Je);var kt="0.0";Xe!=null&&(no(Fe,Xe),this.variableNames.push("offset"),kt="getOffsetAtOutCoords()");var At="1.0";ot!=null&&(no(Fe,ot),this.variableNames.push("scale"),At="getScaleAtOutCoords()"),this.outputShape=Fe,this.userCode=`
1773      void main() {
1774        float x = getXAtOutCoords();
1775        float mean = getMeanAtOutCoords();
1776        float variance = getVarianceAtOutCoords();
1777        float offset = `+kt+`;
1778        float scale = `+At+`;
1779        float inv = scale * inversesqrt(variance + float(`+xt+`));
1780        setOutput(dot(vec3(x, -mean, offset), vec3(inv, inv, 1)));
1781      }
1782    `}(f.shape,y.shape,E.shape,de,we,z);return this.compileAndRun(Ne,le)},m.prototype.localResponseNormalization4D=function(f,y,E,z,Y){var Z=L().getBool("WEBGL_PACK_NORMALIZATION")?new function(le,de,we,De,Ne){this.variableNames=["x"],this.outputShape=[],this.packedInputs=!0,this.packedOutput=!0;var Fe,Ve=de,Je=le[3]-1;this.outputShape=le;var Xe="float("+we+") + float("+De+") * sum";Fe=Ne===.5?"inversesqrt("+Xe+")":Ne===1?"1.0/("+Xe+")":"exp(log("+Xe+") * float(-"+Ne+"));",this.userCode=`
1783      void main() {
1784        ivec4 coords = getOutputCoords();
1785        int b = coords.x;
1786        int r = coords.y;
1787        int c = coords.z;
1788        int d = coords.w;
1789
1790        bool hasNextCol = d < `+this.outputShape[3]+`;
1791        bool hasNextRow = c < `+this.outputShape[2]+`;
1792
1793        vec4 sum = vec4(0.);
1794        vec4 xFragAtOutputCoords = getX(b, r, c, d);
1795
1796        vec4 xAtOutputCoords = vec4(
1797          getChannel(xFragAtOutputCoords, vec2(c, d)),
1798          hasNextCol ?
1799            getChannel(xFragAtOutputCoords, vec2(c, d + 1)) : 0.0,
1800          hasNextRow ?
1801            getChannel(xFragAtOutputCoords , vec2(c + 1, d)) : 0.0,
1802          (hasNextRow && hasNextCol) ?
1803            getChannel(xFragAtOutputCoords, vec2(c + 1, d + 1)) : 0.0
1804        );
1805
1806        int firstChannel = d - `+Ve+`;
1807        vec2 cache = vec2(0.);
1808        if(firstChannel >= 0){
1809          vec4 firstChannelFrag = getX(b, r, c, firstChannel);
1810          cache.x = getChannel(firstChannelFrag, vec2(c, firstChannel));
1811            if(hasNextRow){
1812              cache.y = getChannel(firstChannelFrag, vec2(c + 1, firstChannel));
1813            }
1814        }
1815

1816        ivec2 depth = ivec2(d, d + 1);
1817        for (int j = - `+Ve+"; j <= "+Ve+`; j++) {
1818          ivec2 idx = depth + j;
1819          bvec2 aboveLowerBound = greaterThanEqual(idx, ivec2(0));
1820          bvec2 belowUpperBound = lessThanEqual(idx, ivec2(`+Je+`));
1821
1822          bool depthInRange = aboveLowerBound.x && belowUpperBound.x;
1823          bool depthPlusOneInRange = aboveLowerBound.y && belowUpperBound.y;
1824
1825          if(depthInRange || depthPlusOneInRange){
1826            vec4 z = vec4(0.);
1827            vec4 xFragAtCurrentDepth;
1828            z.xz = cache.xy;
1829            if(depthPlusOneInRange && hasNextCol){
1830              xFragAtCurrentDepth = idx.y != d ?
1831                getX(b, r, c, idx.y) : xFragAtOutputCoords;
1832              z.y = getChannel(xFragAtCurrentDepth, vec2(c, idx.y));
1833              if(hasNextRow){
1834                z.w = getChannel(xFragAtCurrentDepth, vec2(c + 1, idx.y));
1835              }
1836            }
1837            cache.xy = z.yw;
1838            sum += z * z;
1839          }
1840        }
1841        vec4 result = xAtOutputCoords * `+Fe+`;
1842        setOutput(result);
1843      }
1844    `}(f.shape,y,E,z,Y):new function(le,de,we,De,Ne){this.variableNames=["x"],this.outputShape=[];var Fe,Ve=de,Je=le[3]-1;this.outputShape=le;var Xe="float("+we+") + float("+De+") * sum";Fe=Ne===.5?"inversesqrt("+Xe+")":Ne===1?"1.0/("+Xe+")":"exp(log("+Xe+") * float(-"+Ne+"));",this.userCode=`
1845      void main() {
1846        ivec4 coords = getOutputCoords();
1847        int b = coords[0];
1848        int r = coords[1];
1849        int c = coords[2];
1850        int d = coords[3];
1851        float x = getX(b, r, c, d);
1852        float sum = 0.0;
1853        for (int j = -`+Ve+"; j <= "+Ve+`; j++) {
1854          int idx = d + j;
1855          if (idx >= 0 && idx <=  `+Je+`) {
1856            float z = getX(b, r, c, idx);
1857            sum += z * z;
1858          }
1859        }
1860        float val = x * `+Fe+`;
1861        setOutput(val);
1862      }
1863    `}(f.shape,y,E,z,Y);return this.compileAndRun(Z,[f])},m.prototype.LRNGrad=function(f,y,E,z,Y,Z,le){var de=new function(we,De,Ne,Fe,Ve){this.variableNames=["inputImage","outputImage","dy"],this.outputShape=[],this.outputShape=we,this.depth=we[3],this.depthRadius=De,this.bias=Ne,this.alpha=Fe,this.beta=Ve,this.userCode=`
1864      void main() {
1865        ivec4 coords = getOutputCoords();
1866        int b = coords[0];
1867        int r = coords[1];
1868        int c = coords[2];
1869
1870        float result = 0.0;
1871        for (int d = 0; d < `+this.depth+`; ++d) {
1872          int depthBegin = int(max(0.0, float(d - `+De+`)));
1873          int depthEnd = int(min(float(`+this.depth+`),
1874              float(d + `+De+` + 1)));
1875
1876          const int MIN_DEPTH_BEGIN = 0;
1877          const int MAX_DEPTH_END = `+this.depth+`;
1878
1879          float norm = 0.0;
1880          for (int k = MIN_DEPTH_BEGIN; k < MAX_DEPTH_END; ++k) {
1881            if (k < depthBegin){
1882              continue;
1883            }
1884            else if (k >= depthBegin && k < depthEnd) {
1885              norm += getInputImage(b, r, c, k) * getInputImage(b, r, c, k);
1886            }
1887            else {
1888              break;
1889            }
1890          }
1891
1892          norm = float(`+Fe+") * norm + float("+Ne+`);
1893
1894          for(int k = MIN_DEPTH_BEGIN; k < MAX_DEPTH_END; ++k){
1895            if (k < depthBegin){
1896              continue;
1897            }
1898            else if (k >= depthBegin && k < depthEnd){
1899              float dyi = -2.0 * float(`+Fe+`)
1900                * float(`+Ve+`)
1901                * getInputImage(b ,r ,c, k) * getOutputImage(b, r, c, d)
1902                / norm;
1903              if (k == d) {
1904                dyi += pow(norm, -1.0 * `+Ve+`);
1905              }
1906              if (k == coords[3]) {
1907                dyi *= getDy(b, r, c, d);
1908                result += dyi;
1909              }
1910            }
1911            else {
1912              break;
1913            }
1914          }
1915      }
1916      setOutput(result);
1917      }
1918    `}(y.shape,z,Y,Z,le);return this.compileAndRun(de,[y,E,f])},m.prototype.tile=function(f,y){if(f.dtype==="string"){var E=this.readSync(f.dataId).map(function(Y){return Ar(Y)});return Qa(Li(f.shape,f.dtype,E),y)}var z=new function(Y,Z){this.variableNames=["A"];for(var le=new Array(Y.length),de=0;de<le.length;de++)le[de]=Y[de]*Z[de];this.outputShape=le,this.rank=le.length;var we=fa(this.rank),De=function(Ne){var Fe=Ne.length;if(Fe>5)throw Error("Tile for rank "+Fe+" is not yet supported");if(Fe===1)return"imod(resRC, "+Ne[0]+")";for(var Ve=["resRC.x","resRC.y","resRC.z","resRC.w","resRC.u"],Je=[],Xe=0;Xe<Ne.length;Xe++)Je.push("imod("+Ve[Xe]+", "+Ne[Xe]+")");return Je.join()}(Y);this.userCode=`
1919      void main() {
1920        `+we+` resRC = getOutputCoords();
1921        setOutput(getA(`+De+`));
1922      }
1923    `}(f.shape,y);return this.compileAndRun(z,[f])},m.prototype.pad=function(f,y,E){var z=L().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new function(Y,Z,le){this.variableNames=["x"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=Z.map(function(tn,ln){return tn[0]+Y[ln]+tn[1]});for(var de=Y.length,we=fa(de),De=Z.map(function(tn){return tn[0]}).join(","),Ne=Z.map(function(tn,ln){return tn[0]+Y[ln]}).join(","),Fe=Za("rc",de),Ve=Za("source",de),Je=Fe[de-1]+" < "+this.outputShape[de-1],Xe=de===1?"source":"vec2("+Ve.slice(-2).join()+")",ot=[we+" rc = outputLoc;",Fe[de-1]+` += 1;
1924       if(`+Je+`) {
1925      `,de===1?"":`}
1926       rc = outputLoc;
1927       `+Fe[de-2]+` += 1;
1928       if(`+Fe[de-2]+" < "+this.outputShape[de-2]+") {",de===1?"":"  "+Fe[de-1]+` += 1;
1929         if(`+Je+") {"],xt=de===1?"rc < start || rc >= end":"any(lessThan(rc, start)) || any(greaterThanEqual(rc, end))",kt="",At=0,Lt=de===1?2:4;At<Lt;At++)kt+=`
1930        `+ot[At]+`
1931        if (`+xt+`) {
1932          result[`+At+"] = float("+le+`);
1933        } else {
1934          `+we+` source = rc - start;
1935          result[`+At+"] = getChannel(getX("+Ve.join()+"), "+Xe+`);
1936        }
1937      `;kt+=de===1?"} ":"}}",this.userCode=`
1938      const `+we+" start = "+we+"("+De+`);
1939      const `+we+" end = "+we+"("+Ne+`);
1940
1941      void main() {
1942        `+we+` outputLoc = getOutputCoords();
1943        vec4 result = vec4(0.);
1944        `+kt+`
1945        setOutput(result);
1946      }
1947    `}(f.shape,y,E):new function(Y,Z,le){this.variableNames=["x"],this.outputShape=Z.map(function(Ve,Je){return Ve[0]+Y[Je]+Ve[1]});var de=Y.length,we=fa(de),De=Z.map(function(Ve){return Ve[0]}).join(","),Ne=Z.map(function(Ve,Je){return Ve[0]+Y[Je]}).join(","),Fe=["coords[0]","coords[1]","coords[2]","coords[3]"].slice(0,de);this.userCode=de!==1?`
1948      `+we+" start = "+we+"("+De+`);
1949      `+we+" end = "+we+"("+Ne+`);
1950
1951      void main() {
1952        `+we+` outC = getOutputCoords();
1953        if (any(lessThan(outC, start)) || any(greaterThanEqual(outC, end))) {
1954          setOutput(float(`+le+`));
1955        } else {
1956          `+we+` coords = outC - start;
1957          setOutput(getX(`+Fe+`));
1958        }
1959      }
1960    `:`
1961        int start = `+De+`;
1962        int end = `+Ne+`;
1963
1964        void main() {
1965          int outC = getOutputCoords();
1966          if (outC < start || outC >= end) {
1967            setOutput(float(`+le+`));
1968          } else {
1969            setOutput(getX(outC - start));
1970          }
1971        }
1972      `}(f.shape,y,E);return this.compileAndRun(z,[f])},m.prototype.gather=function(f,y,E){if(this.shouldExecuteOnCPU([f,y]))return this.cpuBackend.gather(f,y,E);var z=new function(Y,Z,le){this.variableNames=["A","indices"];var de=Y.slice();de[le]=Z,this.outputShape=de,this.rank=de.length;var we=fa(this.rank),De=function(Ne,Fe){var Ve=Ne.length;if(Ve>4)throw Error("Gather for rank "+Ve+" is not yet supported");if(Ve===1)return"int(getIndices(resRC))";for(var Je=["resRC.x","resRC.y","resRC.z","resRC.w"],Xe=[],ot=0;ot<Ne.length;ot++)ot===Fe?Xe.push("int(getIndices("+Je[ot]+"))"):Xe.push(""+Je[ot]);return Xe.join()}(Y,le);this.userCode=`
1973      void main() {
1974        `+we+` resRC = getOutputCoords();
1975        setOutput(getA(`+De+`));
1976      }
1977    `}(f.shape,y.size,E);return this.compileAndRun(z,[f,y])},m.prototype.batchToSpaceND=function(f,y,E){Ee(f.rank<=4,function(){return"batchToSpaceND for rank > 4 with a WebGL backend not implemented yet"});var z=y.reduce(function(De,Ne){return De*Ne}),Y=ch(f.shape,y,z),Z=wf(Y.length,y.length),le=ad(f.shape,y,z),de=Lm(E,y.length),we=zg(le,E,y.length);return wt(f.reshape(Y),Z).reshape(le).slice(de,we)},m.prototype.spaceToBatchND=function(f,y,E){Ee(f.rank<=4,function(){return"spaceToBatchND for rank > 4 with a WebGL backend not implemented yet"});var z=y.reduce(function(Ne,Fe){return Ne*Fe}),Y=[[0,0]];Y.push.apply(Y,E);for(var Z=1+y.length;Z<f.shape.length;++Z)Y.push([0,0]);var le=f.pad(Y),de=ch(le.shape,y,z,!1),we=wf(de.length,y.length,!1),De=ad(le.shape,y,z,!1);

1977return wt(le.reshape(de),we).reshape(De)},m.prototype.reduce=function(f,y,E){var z=f.shape[0],Y=f.shape[1],Z=new function(de,we){this.variableNames=["x"];var De=de.windowSize,Ne=de.batchSize,Fe=de.inSize,Ve=Math.ceil(Fe/De);this.outputShape=[Ne,Ve];var Je="0.0",Xe="";we==="prod"?Je="1.0":we==="min"?(Je="1.0 / 1e-20",Xe="min"):we==="max"&&(Je="-1.0 / 1e-20",Xe="max");var ot=we+"("+we+"("+we+"(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])";we==="sum"?ot="sumValue":we==="prod"?ot="prodValue":we==="all"?ot="allValue":we==="any"&&(ot="anyValue");var xt=4*Math.floor(De/4),kt=De%4,At=`
1978      if (`+(we==="sum")+`) {
1979        sumValue += dot(values, ones);
1980      } else if (`+(we==="prod")+`) {
1981        vec2 tmp = vec2(values[0], values[1]) * vec2(values[2], values[3]);
1982        prodValue *= tmp[0] * tmp[1];
1983      } else {
1984        minMaxValue = `+Xe+`(values, minMaxValue);
1985      }
1986    `,Lt="vec4";we==="all"?(Je="1.0",At=`
1987        bool reducedAllValue = all(values);
1988        float floatedReducedAllValue = float(reducedAllValue);
1989        allValue = float(allValue >= 1.0 && floatedReducedAllValue >= 1.0);
1990      `,Lt="bvec4"):we==="any"&&(Je="0.0",At=`
1991        bool reducedAnyValue = any(values);
1992        float floatedReducedAnyValue = float(reducedAnyValue);
1993        anyValue = float(anyValue >= 1.0 || floatedReducedAnyValue >= 1.0);
1994      `,Lt="bvec4");var tn="";Fe%De>0&&(tn=`
1995        if (inIdx < 0 || inIdx >= `+Fe+`) {
1996          return initializationValue;
1997        }
1998      `),this.userCode=`
1999      const float initializationValue = `+Je+`;
2000      const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0);
2001
2002      float getValue(int batch, int inIdx) {
2003        `+tn+`
2004        return getX(batch, inIdx);
2005      }
2006
2007      void main() {
2008        ivec2 coords = getOutputCoords();
2009        int batch = coords[0];
2010        int outIdx = coords[1];
2011        int inOffset = outIdx * `+De+`;
2012
2013        vec4 minMaxValue = vec4(`+Je+`);
2014        float prodValue = 1.0;
2015        float sumValue = 0.0;
2016        float allValue = 1.0;
2017        float anyValue = 0.0;
2018
2019        for (int i = 0; i < `+xt+`; i += 4) {
2020          int inIdx = inOffset + i;
2021          `+Lt+" values = "+Lt+`(
2022            getValue(batch, inIdx),
2023            getValue(batch, inIdx + 1),
2024            getValue(batch, inIdx + 2),
2025            getValue(batch, inIdx + 3)
2026          );
2027
2028          `+At+`
2029        }
2030
2031        int inIdx = inOffset + `+xt+`;
2032        if (`+(kt===1)+`) {
2033          `+Lt+" values = "+Lt+`(
2034            getValue(batch, inIdx),
2035            initializationValue,
2036            initializationValue,
2037            initializationValue
2038          );
2039
2040          `+At+`
2041        } else if (`+(kt===2)+`) {
2042          `+Lt+" values = "+Lt+`(
2043            getValue(batch, inIdx),
2044            getValue(batch, inIdx + 1),
2045            initializationValue,
2046            initializationValue
2047          );
2048
2049          `+At+`
2050        } else if (`+(kt===3)+`) {
2051          `+Lt+" values = "+Lt+`(
2052            getValue(batch, inIdx),
2053            getValue(batch, inIdx + 1),
2054            getValue(batch, inIdx + 2),
2055            initializationValue
2056          );
2057
2058          `+At+`
2059        }
2060        setOutput(`+ot+`);
2061      }
2062    `}({windowSize:Sl(Y),inSize:Y,batchSize:z},y),le=this.compileAndRun(Z,[f],E);return le.shape[1]===1?le:this.reduce(le,y,E)},m.prototype.argReduce=function(f,y,E){E===void 0&&(E=null);var z=f.shape[0],Y=f.shape[1];E!=null&&(z=E.shape[0],Y=E.shape[1]);var Z=new function(we,De,Ne){this.variableNames=["A"];var Fe=we.windowSize,Ve=we.batchSize,Je=we.inSize,Xe=Math.ceil(Je/Fe);Ne||this.variableNames.push("bestIndicesA"),this.outputShape=[Ve,Xe];var ot=De==="max"?">":"<",xt=Ne?"inOffset + i;":"round(getBestIndicesA(batch, inOffset + i));";this.userCode=`
2063      void main() {
2064        ivec2 coords = getOutputCoords();
2065        int batch = coords[0];
2066        int outIdx = coords[1];
2067        int inOffset = outIdx * `+Fe+`;
2068
2069        int bestIndex = inOffset;
2070        float bestValue = getA(batch, bestIndex);
2071
2072        for (int i = 0; i < `+Fe+`; i++) {
2073          int inIdx = `+xt+`;
2074          float candidate = getA(batch, inIdx);
2075          if (candidate `+ot+` bestValue) {
2076            bestValue = candidate;
2077            bestIndex = inIdx;
2078          }
2079        }
2080        setOutput(float(bestIndex));
2081      }
2082    `}({windowSize:Sl(Y),inSize:Y,batchSize:z},y,E==null),le=[f];E!=null&&le.push(E);var de=this.compileAndRun(Z,le,"int32");return de.shape[1]===1?de:this.argReduce(f,y,de)},m.prototype.argReducePacked=function(f,y,E){E===void 0&&(E=null);var z=E!=null?E.shape:f.shape,Y=new function(de,we,De,Ne){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,Ee(de.length>2,function(){return"Packed arg"+(De.charAt(0).toUpperCase()+De.slice(1))+" supports only input

2082s with rank above 2."});var Fe=de[de.length-1],Ve=Math.ceil(Fe/we);this.outputShape=de.slice(0,-1),Ve>1&&this.outputShape.push(Ve),Ne||this.variableNames.push("bestIndicesA");var Je,Xe,ot=this.outputShape,xt=ot.length,kt=fa(xt),At=Za("coords",xt);if(Ve===1){var Lt=fa(Xe=xt+1);Je=`
2083        `+Lt+" sourceLocR = "+Lt+"("+At.join()+`, 0);
2084        ++`+At[xt-1]+`;
2085        `+Lt+" sourceLocG = "+Lt+"("+At.join()+`, 0);
2086        ++`+At[xt-2]+`;
2087        `+Lt+" sourceLocA = "+Lt+"("+At.join()+`, 0);
2088        --`+At[xt-1]+`;
2089        `+Lt+" sourceLocB = "+Lt+"("+At.join()+`, 0);
2090        --`+At[xt-2]+";"}else Xe=xt,Je=`
2091        `+kt+` sourceLocR = coords;
2092        ++`+At[xt-1]+`;
2093        `+kt+` sourceLocG = coords;
2094        ++`+At[xt-2]+`;
2095        `+kt+` sourceLocA = coords;
2096        --`+At[xt-1]+`;
2097        `+kt+` sourceLocB = coords;
2098        --`+At[xt-2]+";";var tn=["x","y","z","w","u","v"].slice(0,Xe),ln="."+tn[Xe-1],nn=tn.map(function(yr){return"int "+yr}),cn=Za("sourceLocR",Xe-1).concat("inIdx.r"),Dn=Za("sourceLocG",Xe-1).concat("inIdx.g"),Rn=Za("sourceLocB",Xe-1).concat("inIdx.b"),Mn=Za("sourceLocA",Xe-1).concat("inIdx.a"),tr=De==="max"?"greaterThan":"lessThan",ur=Ne?"":`
2099          inIdx = round(vec4(getBestIndicesAChannel(`+cn.join()+`),
2100                             getBestIndicesAChannel(`+Dn.join()+`),
2101                             getBestIndicesAChannel(`+Rn.join()+`),
2102                             getBestIndicesAChannel(`+Mn.join()+")));",vr=`vec4(
2103            getAChannel(`+cn.join()+`),
2104            hasNextCol ? getAChannel(`+Dn.join()+`) : 0.,
2105            hasNextRow ? getAChannel(`+Rn.join()+`) : 0.,
2106            hasNextRow && hasNextCol ? getAChannel(`+Mn.join()+") : 0.)",kr=Ne?"":`
2107      float getBestIndicesAChannel(`+nn.join()+`) {
2108        return getChannel(getBestIndicesA(`+tn.join()+`),
2109                                          vec2(`+tn.slice(-2).join()+`));
2110      }`;this.userCode=`
2111      float getAChannel(`+nn.join()+`) {
2112        return getChannel(getA(`+tn.join()+`),
2113                               vec2(`+tn.slice(-2).join()+`));
2114      }
2115      `+kr+`
2116      void main() {
2117        `+kt+` coords = getOutputCoords();
2118        bool hasNextCol = `+At[xt-1]+" < "+(ot[xt-1]-1)+`;
2119        bool hasNextRow = `+At[xt-2]+" < "+(ot[xt-2]-1)+`;
2120        `+Je+`
2121        ivec4 srcIdx = ivec4(sourceLocR`+ln+", sourceLocG"+ln+`,
2122          sourceLocB`+ln+", sourceLocA"+ln+") * "+we+`;
2123        ivec4 inIdx = srcIdx;
2124        vec4 bestIndex = vec4(inIdx);
2125        vec4 bestValue = `+vr+`;
2126
2127        for (int i = 0; i < `+we+`; i++) {
2128          inIdx = srcIdx;
2129          `+ur+`
2130          vec4 candidate = `+vr+`;
2131          bvec4 nan = isnan(candidate);
2132          bvec4 replace = bvec4(
2133            vec4(`+tr+`(candidate, bestValue)) * (vec4(1.0) - vec4(nan)));
2134
2135          bestValue = vec4(replace.x  ? candidate.x : bestValue.x,
2136                           replace.y  ? candidate.y : bestValue.y,
2137                           replace.z  ? candidate.z : bestValue.z,
2138                           replace.w  ? candidate.w : bestValue.w);
2139          bestIndex = mix(bestIndex, vec4(inIdx), vec4(replace));
2140          srcIdx++;
2141        }
2142        setOutput(bestIndex);
2143      }
2144    `}(z,Sl(z[z.length-1]),y,E==null),Z=E==null?[f]:[f,E],le=this.compileAndRun(Y,Z,"int32");return le.rank===f.rank?this.argReducePacked(f,y,le):le},m.prototype.sum=function(f,y){Aa("sum",y,f.rank);var E=ra(f.shape,y),z=E[0],Y=Ke(E[1]),Z=f.as2D(-1,Y),le=rr(f.dtype);return this.reduce(Z,"sum",le).reshape(z)},m.prototype.prod=function(f,y){if(this.shouldExecuteOnCPU([f]))return this.cpuBackend.prod(f,y);var E=ra(f.shape,y),z=E[0],Y=Ke(E[1]),Z=f.as2D(-1,Y),le=rr(f.dtype);return this.reduce(Z,"prod",le).reshape(z)},m.prototype.unsortedSegmentSum=function(f,y,E){var z=0,Y=fs([z],f.rank),Z=f;Y!=null&&(Z=wt(f,Y),z=ds(1,f.rank)[0]);var le=function(Fe,Ve,Je){for(var Xe=[],ot=Fe.length,xt=0;xt<ot;xt++)xt!==Ve?Xe.push(Fe[xt]):Xe.push(Je);return Xe}(Z.shape,z,E),de=Ke([Z.shape[z]]),we=Z.as2D(-1,de),De=rr(f.dtype),Ne=this.segOpCompute(we,"unsortedSegmentSum",y,De,E).reshape(le);return Y!=null&&(Ne=wt(Ne,Ic(Y))),Ne},m.prototype.segOpCompute=function(f,y,E,z,Y){var Z=f.shape[0],le=f.shape[1],de=function(Ne,Fe){var Ve,Je=!1;for(Ne<=il?(Ve=Ne,Je=!0):Ve=nr(Ne,Math.floor(Math.sqrt(Ne)));!Je;)Ve>Fe||Ve===Ne?Je=!0:Ve=nr(Ne,Ve+1);return Ve}(le,Y),we=new function(Ne,Fe){this.variableNames=["x","segmentIds"];var Ve=Ne.windowSize,Je=Ne.batchSize,Xe=Ne.inSize,ot=Ne.numSegments,xt=ot*Math.ceil(Xe/Ve);this.outputShape=[Je,xt];var kt=4*Math.floor(Ve/4),At=Ve%4,Lt=`
2145        sumValue += dot(values, segFilter);
2146    `,tn="";Xe%Ve>0&&(tn=`
2147        if (inIdx < 0 || inIdx >= `+Xe+`) {
2148          return initializationValue;
2149        }
2150      `);var ln="";Xe%Ve>0&&(ln=`
2151        if (inIdx < 0 || inIdx >= `+Xe+`) {
2152          return -1.0;
2153        }
2154      `),this.userCode=`
2155      const float initializationValue = 0.0;
2156
2157      float getValue(int batch, int inIdx) {
2158        `+tn+`
2159        return getX(batch, inIdx);
2160      }
2161
2162      float getSegmentIdAtIndex(int inIdx) {
2163        `+ln+`
2164        return getSegmentIds(inIdx);
2165      }
2166
2167      void main() {
2168        ivec2 coords = getOutputCoords();
2169        int batch = coords[0];
2170        int outIdx = coords[1];
2171        int inOffset = int(floor(float(outIdx) / float(
2172          `+ot+")) * float("+Ve+`));
2173        int currentSeg = int(mod(float(outIdx), float(`+ot+`)));
2174
2175        float sumValue = 0.0;
2176
2177        for (int i = 0; i < `+kt+`; i += 4) {
2178          int inIdx = inOffset + i;
2179          vec4 values = vec4(
2180            getValue(batch, inIdx),
2181            getValue(batch, inIdx + 1),
2182            getValue(batch, inIdx + 2),
2183            getValue(batch, inIdx + 3)
2184          );
2185
2186          vec4 segFilter = vec4(
2187            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,
2188            int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,
2189            int(getSegmentIdAtIndex(inIdx + 2)) == currentSeg ? 1 : 0,
2190            int(getSegmentIdAtIndex(inIdx + 3)) == currentSeg ? 1 : 0
2191          );
2192
2193          `+Lt+`
2194        }
2195
2196        int inIdx = inOffset + `+kt+`;
2197        if (`+(At===1)+`) {
2198          vec4 values = vec4(
2199            getValue(batch, inIdx),
2200            initializationValue,
2201            initializationValue,
2202            initializationValue
2203          );
2204
2205          int inIdxSeg = int(getSegmentIdAtIndex(inIdx));
2206
2207          vec4 segFilter = vec4(
2208            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,
2209            0,
2210            0,
2211            0
2212          );
2213
2214          `+Lt+`
2215        } else if (`+(At===2)+`) {
2216          vec4 values = vec4(
2217            getValue(batch, inIdx),
2218            getValue(batch, inIdx + 1),
2219            initializationValue,
2220            initializationValue
2221          );
2222
2223          vec4 segFilter = vec4(
2224            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,
2225            int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,
2226              0,
2227              0
2228          );
2229
2230          `+Lt+`
2231        } else if (`+(At===3)+`) {
2232          vec4 values = vec4(
2233            getValue(batch, inIdx),
2234            getValue(batch, inIdx + 1),
2235            getValue(batch, inIdx + 2),
2236            initializationValue
2237          );
2238
2239          vec4 segFilter = vec4(
2240            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,
2241            int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,
2242            int(getSegmentIdAtIndex(inIdx + 2)) == currentSeg ? 1 : 0,
2243            0
2244          );
2245
2246          `+Lt+`
2247        }
2248        setOutput(sumValue);
2249      }
2250    `}({windowSize:de,inSize:le,batchSize:Z,numSegments:Y}),De=this.compileAndRun(we,[f,E],z);return De.shape[1]===Y?De:(E=kl(0,Y).tile([le/de]),this.segOpCompute(De,y,E,z,Y))},m.prototype.argMinMaxReduce=function(f,y,E){var z=[y];if(Aa("arg"+E.charAt(0).toUpperCase()+E.slice(1),z,f.rank),!L().getBool("WEBGL_PACK_REDUCE")||f.rank<=2){var Y=ra(f.shape,z),Z=Y[0],le=Ke(Y[1]),de=f.as2D(-1,le);return this.argReduce(de,E).reshape(Z)}return this.argReducePacked(f,E)},m.prototype.argMin=function(f,y){return this.argMinMaxReduce(f,y,"min")},m.prototype.argMax=function(f,y){return this.argMinMaxReduce(f,y,"max")},m.prototype.cumsum=function(f,y,E,z){if(y!==f.rank-1)throw new Error("WebGL cumsum shader expects an inner-most axis="+(f.rank-1)+" but got axis="+y);var Y=new function(Z,le,de){this.variableNames=["x"],this.outputShape=Z;var we=Z.length,De=Z[Z.length-1],Ne=de?"<":">";this.userCode=`
2251      int getIndex(int i) {
2252        `+(de?"return "+De+" -i - 1;":"return i;")+`
2253      }
2254
2255      void main() {
2256        `+fa(we)+` coords = getOutputCoords();
2257        int end = `+Wv(we,"coords")+`;
2258        float val = 0.0;
2259        for (int i = `+De+` - 1; i >= 0; i -= 1) {
2260          int idx = getIndex(i);
2261          if (idx `+Ne+` end) {
2262            continue;
2263          }
2264          if (idx == end && `+le+`) {
2265            continue;
2266          }
2267          `+Wv(we,"coords")+` = idx;
2268          val += getX(`+function(Fe,Ve){if(Fe===1)return""+Ve;if(Fe===2)return Ve+".x, "+Ve+".y";if(Fe===3)return Ve+".x, "+Ve+".y, "+Ve+".z";if(Fe===4)return Ve+".x, "+Ve+".y, "+Ve+".z, "+Ve+".w";throw Error("Cumulative sum for rank "+Fe+" is not yet supported")}(we,"coords")+`);
2269        }
2270        setOutput(val);
2271      }
2272    `}(f.shape,E,z);return this.compileAndRun(Y,[f])},m.prototype.equal=function(f,y){if(L().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(f,y,`
2273  return vec4(equal(a, b));
2274`,"bool");var E=new xa("return float(a == b);",f.shape,y.shape);return this.compileAndRun(E,[f,y],"bool")},m.prototype.notEqual=function(f,y){if(L().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(f,y,`
2275  return vec4(notEqual(a, b));
2276`,"bool");var E=new xa("return float(a != b);",f.shape,y.shape);return this.compileAndRun(E,[f,y],"bool")},m.prototype.less=function(f,y){if(this.shouldExecuteOnCPU([f,y]))return this.cpuBackend.less(f,y);if(L().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(f,y,`
2277  return vec4(lessThan(a, b));
2278`,"bool");var E=new xa("return float(a < b);",f.shape,y.shape);return this.compileAndRun(E,[f,y],"bool")},m.prototype.lessEqual=function(f,y){if(L().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(f,y,`
2279  return vec4(lessThanEqual(a, b));
2280`,"bool");var E=new xa("return float(a <= b);",f.shape,y.shape);return this.compileAndRun(E,[f,y],"bool")},m.prototype.greater=function(f,y){if(this.shouldExecuteOnCPU([f,y]))return this.cpuBackend.greater(f,y);if(L().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(f,y,`
2281  return vec4(greaterThan(a, b));
2282`,"bool");var E=new xa("return float(a > b);",f.shape,y.shape);return this.compileAndRun(E,[f,y],"bool")},m.prototype.greaterEqual=function(f,y){if(L().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(f,y,`
2283  return vec4(greaterThanEqual(a, b));
2284`,"bool");var E=new xa("return float(a >= b);",f.shape,y.shape);return this.compileAndRun(E,[f,y],"bool")},m.prototype.logicalNot=function(f){var y=new Fo(f.shape,"return float(!(x >= 1.0));");return this.compileAndRun(y,[f])},m.prototype.logicalAnd=function(f,y){if(L().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(f,y,`
2285  return vec4(
2286    vec4(greaterThanEqual(a, vec4(1.0))) *
2287    vec4(greaterThanEqual(b, vec4(1.0))));
2288`,"bool");var E=new xa("return float(a >= 1.0 && b >= 1.0);",f.shape,y.shape);return this.compileAndRun(E,[f,y],"bool")},m.prototype.logicalOr=function(f,y){if(L().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(f,y,`
2289  return min(
2290    vec4(greaterThanEqual(a, vec4(1.0))) +
2291    vec4(greaterThanEqual(b, vec4(1.0))),
2292    vec4(1.0));
2293`,"bool");var E=new xa("return float(a >= 1.0 || b >= 1.0);",f.shape,y.shape);return this.compileAndRun(E,[f,y],"bool")},m.prototype.select=function(f,y,E){var z=new function(Y,Z,le){var de,we;if(this.variableNames=["c","a","b"],this.outputShape=Z,le>4)throw Error("Where for rank "+le+" is not yet supported");

2293if(le===1)we="resRC",de="resRC";else{for(var De=["resRC.x","resRC.y","resRC.z","resRC.w"],Ne=[],Fe=[],Ve=0;Ve<Z.length;Ve++)Fe.push(""+De[Ve]),Ve<Y&&Ne.push(""+De[Ve]);de=Ne.join(),we=Fe.join()}var Je=fa(le);this.userCode=`
2294      void main() {
2295        `+Je+` resRC = getOutputCoords();
2296        float cVal = getC(`+de+`);
2297        if (cVal >= 1.0) {
2298          setOutput(getA(`+we+`));
2299        } else {
2300          setOutput(getB(`+we+`));
2301        }
2302      }
2303    `}(f.rank,y.shape,y.rank);return this.compileAndRun(z,[f,y,E],kn(y.dtype,E.dtype))},m.prototype.where=function(f){yf("tf.where() in webgl locks the UI thread. Call tf.whereAsync() instead");var y=f.dataSync();return Na(f.shape,y)},m.prototype.topk=function(f,y,E){return Ua(f.dataSync(),f.shape,f.dtype,y)},m.prototype.min=function(f,y){Aa("min",y,f.rank);var E=ra(f.shape,y),z=E[0],Y=Ke(E[1]),Z=f.as2D(-1,Y);return this.reduce(Z,"min",Z.dtype).reshape(z)},m.prototype.minimum=function(f,y){if(this.shouldExecuteOnCPU([f,y]))return this.cpuBackend.minimum(f,y);var E=L().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new _s(`
2304  vec4 result = vec4(min(a, b));
2305  vec4 isNaN = min(vec4(isnan(a)) + vec4(isnan(b)), vec4(1.0));
2306  
2307  result.r = isNaN.r > 0. ? NAN : result.r;
2308  result.g = isNaN.g > 0. ? NAN : result.g;
2309  result.b = isNaN.b > 0. ? NAN : result.b;
2310  result.a = isNaN.a > 0. ? NAN : result.a;
2311
2312  return result;
2313`,f.shape,y.shape):new xa(`
2314  if (isnan(a)) return a;
2315  if (isnan(b)) return b;
2316
2317  return min(a, b);
2318`,f.shape,y.shape);return this.compileAndRun(E,[f,y])},m.prototype.mod=function(f,y){var E=L().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new _s(`
2319  vec4 result = mod(a, b);
2320  vec4 isNaN = vec4(equal(b, vec4(0.0)));
2321  
2322  result.r = isNaN.r > 0. ? NAN : result.r;
2323  result.g = isNaN.g > 0. ? NAN : result.g;
2324  result.b = isNaN.b > 0. ? NAN : result.b;
2325  result.a = isNaN.a > 0. ? NAN : result.a;
2326
2327  return result;
2328`,f.shape,y.shape):new xa(`if (b == 0.0) return NAN;
2329  return mod(a, b);`,f.shape,y.shape);return this.compileAndRun(E,[f,y])},m.prototype.max=function(f,y){if(this.shouldExecuteOnCPU([f]))return this.cpuBackend.max(f,y);Aa("max",y,f.rank);var E=ra(f.shape,y),z=E[0],Y=Ke(E[1]),Z=f.as2D(-1,Y);return this.reduce(Z,"max",Z.dtype).reshape(z)},m.prototype.maximum=function(f,y){if(this.shouldExecuteOnCPU([f,y]))return this.cpuBackend.maximum(f,y);var E=L().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new _s(`
2330  vec4 result = vec4(max(a, b));
2331  vec4 isNaN = min(vec4(isnan(a)) + vec4(isnan(b)), vec4(1.0));
2332  
2333  result.r = isNaN.r > 0. ? NAN : result.r;
2334  result.g = isNaN.g > 0. ? NAN : result.g;
2335  result.b = isNaN.b > 0. ? NAN : result.b;
2336  result.a = isNaN.a > 0. ? NAN : result.a;
2337
2338  return result;
2339`,f.shape,y.shape):new xa(`
2340  if (isnan(a)) return a;
2341  if (isnan(b)) return b;
2342
2343  return max(a, b);
2344`,f.shape,y.shape);return this.compileAndRun(E,[f,y])},m.prototype.all=function(f,y){Aa("all",y,f.rank);var E=ra(f.shape,y),z=E[0],Y=Ke(E[1]),Z=f.as2D(-1,Y);return this.reduce(Z,"all",Z.dtype).reshape(z)},m.prototype.any=function(f,y){Aa("any",y,f.rank);var E=ra(f.shape,y),z=E[0],Y=Ke(E[1]),Z=f.as2D(-1,Y);return this.reduce(Z,"any",Z.dtype).reshape(z)},m.prototype.floorDiv=function(f,y){if(L().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(f,y,`
2345  ivec4 ia = round(a);
2346  ivec4 ib = round(b);
2347  bvec4 cond = notEqual(ib, ivec4(0));
2348  ivec4 result = ivec4(0);
2349  vec4 s = sign(a) * sign(b);
2350
2351  // Windows (D3D) wants guaranteed non-zero int division at compile-time.
2352  if (cond[0]) {
2353    result[0] = idiv(ia[0], ib[0], s[0]);
2354  }
2355  if (cond[1]) {
2356    result[1] = idiv(ia[1], ib[1], s[1]);
2357  }
2358  if (cond[2]) {
2359    result[2] = idiv(ia[2], ib[2], s[2]);
2360  }
2361  if (cond[3]) {
2362    result[3] = idiv(ia[3], ib[3], s[3]);
2363  }
2364  return vec4(result);
2365`,"int32");var E=new xa(`
2366  float s = sign(a) * sign(b);
2367  int ia = round(a);
2368  int ib = round(b);
2369  if (ib != 0) {
2370    // Windows (D3D) wants guaranteed non-zero int division at compile-time.
2371    return float(idiv(ia, ib, s));
2372  } else {
2373    return NAN;
2374  }
2375`,f.shape,y.shape);return this.compileAndRun(E,[f,y],"int32")},m.prototype.add=function(f,y){if(f.dtype==="complex64"&&y.dtype==="complex64")return this.complexSeparableBinaryOp(f,y,Su);if(this.shouldExecuteOnCPU([f,y]))return this.cpuBackend.add(f,y);var E=kn(f.dtype,y.dtype);if(L().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(f,y,Su,E);var z=new xa(Su,f.shape,y.shape);return this.compileAndRun(z,[f,y],E)},m.prototype.packedUnaryOp=function(f,y,E){var z=new bd(f.shape,y);return this.compileAndRun(z,[f],E)},m.prototype.packedBinaryOp=function(f,y,E,z,Y){Y===void 0&&(Y=!1);var Z=new _s(E,f.shape,y.shape,Y);return this.compileAndRun(Z,[f,y],z)},m.prototype.complexSeparableBinaryOp=function(f,y,E){var z=this,Y=this.texData.get(f.dataId),Z=this.texData.get(y.dataId),le=[[Y.complexTensors.real,Z.complexTensors.real],[Y.complexTensors.imag,Z.complexTensors.imag]].map(function(Ne){var Fe=Ne[0],Ve=Ne[1],Je=z.makeComplexComponentTensorInfo(f,Fe),Xe=z.makeComplexComponentTensorInfo(y,Ve),ot=new xa(E,f.shape,y.shape);return z.compileAndRun(ot,[Je,Xe],kn(Fe.dtype,Ve.dtype))}),de=le[0],we=le[1],De=this.complex(de,we);return de.dispose(),we.dispose(),De},m.prototype.makeComplexComponentTensorInfo=function(f,y){return{dataId:y.dataId,dtype:y.dtype,shape:f.shape}},m.prototype.addN=function(f){if(f.length===1)return f[0];if(f.length>L().get("WEBGL_MAX_TEXTURES_IN_SHADER")){var y=Math.floor(f.length/2),E=this.addN(f.slice(0,y)),z=this.addN(f.slice(y));return this.addN([E,z])}var Y=f.map(function(de){return de.dtype}).reduce(function(de,we){return kn(de,we)}),Z=f.map(function(de){return de.shape}),le=L().getBool("WEBGL_PACK")?new function(de,we){this.outputShape=[],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=de,this.variableNames=we.map(function(Fe,Ve){return"T"+Ve});var De=[];this.variableNames.forEach(function(Fe){De.push("vec4 v"+Fe+" = get"+Fe+"AtOutCoords();")});var Ne=this.variableNames.map(function(Fe){return"v"+Fe}).join(" + ");this.userCode=`
2376      void main() {
2377        `+De.join(`
2378        `)+`
2379
2380        vec4 result = `+Ne+`;
2381        setOutput(result);
2382      }
2383    `}(f[0].shape,Z):new function(de,we){this.outputShape=[],this.outputShape=de,this.variableNames=we.map(function(Fe,Ve){return"T"+Ve});var De=[];this.variableNames.forEach(function(Fe){De.push("float v"+Fe+" = get"+Fe+"AtOutCoords();")});var Ne=this.variableNames.map(function(Fe){return"v"+Fe}).join(" + ");this.userCode=`
2384      void main() {
2385        `+De.join(`
2386        `)+`
2387
2388        float result = `+Ne+`;
2389        setOutput(result);
2390      }
2391    `}(f[0].shape,Z);return this.compileAndRun(le,f,Y)},m.prototype.subtract=function(f,y){if(f.dtype==="complex64"&&y.dtype==="complex64")return this.complexSeparableBinaryOp(f,y,Ls);if(this.shouldExecuteOnCPU([f,y]))return this.cpuBackend.subtract(f,y);var E=kn(f.dtype,y.dtype);if(L().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(f,y,Ls,f.dtype);var z=new xa(Ls,f.shape,y.shape);return this.compileAndRun(z,[f,y],E)},m.prototype.pow=function(f,y){var E=L().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new _s(`
2392  // isModRound1 has 1 for components with round(mod(b, 2.0)) == 1, 0 otherwise.
2393  vec4 isModRound1 = vec4(equal(round(mod(b, 2.0)), ivec4(1)));
2394  vec4 multiplier = sign(a) * isModRound1 + (vec4(1.0) - isModRound1);
2395  vec4 result = multiplier * pow(abs(a), b);
2396
2397  // Ensure that a^0 = 1, including 0^0 = 1 as this correspond to TF and JS
2398  bvec4 isExpZero = equal(b, vec4(0.0));
2399  result.r = isExpZero.r ? 1.0 : result.r;
2400  result.g = isExpZero.g ? 1.0 : result.g;
2401  result.b = isExpZero.b ? 1.0 : result.b;
2402  result.a = isExpZero.a ? 1.0 : result.a;
2403
2404  vec4 isNaN = vec4(lessThan(a, vec4(0.0))) * vec4(lessThan(floor(b), b));
2405  
2406  result.r = isNaN.r > 0. ? NAN : result.r;
2407  result.g = isNaN.g > 0. ? NAN : result.g;
2408  result.b = isNaN.b > 0. ? NAN : result.b;
2409  result.a = isNaN.a > 0. ? NAN : result.a;
2410
2411  return result;
2412`,f.shape,y.shape):new xa(`
2413if(a < 0.0 && floor(b) < b){
2414  return NAN;
2415}
2416if (b == 0.0) {
2417  return 1.0;
2418}
2419return (round(mod(b, 2.0)) != 1) ?

2420    pow(abs(a), b) : sign(a) * pow(abs(a), b);
2421`,f.shape,y.shape),z=kn(f.dtype,y.dtype);return this.compileAndRun(E,[f,y],z)},m.prototype.ceil=function(f){if(this.shouldExecuteOnCPU([f]))return this.cpuBackend.ceil(f);if(L().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(f,ey,f.dtype);var y=new Fo(f.shape,ey);return this.compileAndRun(y,[f])},m.prototype.floor=function(f){if(this.shouldExecuteOnCPU([f]))return this.cpuBackend.floor(f);if(L().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(f,ty,f.dtype);var y=new Fo(f.shape,ty);return this.compileAndRun(y,[f])},m.prototype.sign=function(f){var y=new Fo(f.shape,`
2422  if (isnan(x)) { return 0.0; }
2423  return sign(x);
2424`);return this.compileAndRun(y,[f])},m.prototype.isNaN=function(f){var y=new Fo(f.shape,"return float(isnan(x));");return this.compileAndRun(y,[f],"bool")},m.prototype.isInf=function(f){var y=new Fo(f.shape,"return float(isinf(x));");return this.compileAndRun(y,[f],"bool")},m.prototype.isFinite=function(f){var y=new Fo(f.shape,"return float(!isnan(x) && !isinf(x));");return this.compileAndRun(y,[f],"bool")},m.prototype.round=function(f){var y=new Fo(f.shape,`
2425  // OpenGL ES does not support round function.
2426  // The algorithm is based on banker's rounding.
2427  float base = floor(x);
2428  if ((x - base) < 0.5) {
2429    return floor(x);
2430  } else if ((x - base) > 0.5) {
2431    return ceil(x);
2432  } else {
2433    if (mod(base, 2.0) == 0.0) {
2434      return base;
2435    } else {
2436      return base + 1.0;
2437    }
2438  }
2439`);return this.compileAndRun(y,[f])},m.prototype.exp=function(f){if(this.shouldExecuteOnCPU([f]))return this.cpuBackend.exp(f);if(L().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(f,Pp,f.dtype);var y=new Fo(f.shape,Pp);return this.compileAndRun(y,[f])},m.prototype.expm1=function(f){if(this.shouldExecuteOnCPU([f]))return this.cpuBackend.expm1(f);if(L().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(f,kh,f.dtype);var y=new Fo(f.shape,kh);return this.compileAndRun(y,[f])},m.prototype.softmax=function(f,y){var E=Vt([y],f.shape),z=this.max(f,E),Y=ia(z.shape,E),Z=this.subtract(f,z.reshape(Y)),le=this.exp(Z),de=this.sum(le,E).reshape(Y);return Da(le,de)},m.prototype.log=function(f){if(this.shouldExecuteOnCPU([f]))return this.cpuBackend.log(f);if(L().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(f,`
2440  vec4 result = log(x);
2441  vec4 isNaN = vec4(lessThan(x, vec4(0.0)));
2442  result.r = isNaN.r == 1.0 ? NAN : result.r;
2443  result.g = isNaN.g == 1.0 ? NAN : result.g;
2444  result.b = isNaN.b == 1.0 ? NAN : result.b;
2445  result.a = isNaN.a == 1.0 ? NAN : result.a;
2446
2447  return result;
2448`,f.dtype);var y=new Fo(f.shape,`if (x < 0.0) return NAN;
2449  return log(x);`);return this.compileAndRun(y,[f])},m.prototype.log1p=function(f){var y=new Fo(f.shape,"return log(1.0 + x);");return this.compileAndRun(y,[f])},m.prototype.sqrt=function(f){var y=new Fo(f.shape,"return sqrt(x);");return this.compileAndRun(y,[f])},m.prototype.rsqrt=function(f){if(this.shouldExecuteOnCPU([f]))return this.cpuBackend.rsqrt(f);var y=new Fo(f.shape,"return inversesqrt(x);");return this.compileAndRun(y,[f])},m.prototype.reciprocal=function(f){var y=new Fo(f.shape,"return 1.0 / x;");return this.compileAndRun(y,[f])},m.prototype.relu=function(f){var y;return y=L().getBool("WEBGL_PACK")?new bd(f.shape,Vg):new Fo(f.shape,Zv),this.compileAndRun(y,[f])},m.prototype.relu6=function(f){var y;return y=L().getBool("WEBGL_PACK")?new bd(f.shape,If):new Fo(f.shape,Qm),this.compileAndRun(y,[f])},m.prototype.prelu=function(f,y){var E=L().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new _s(qs,f.shape,y.shape):new xa(Xl,f.shape,y.shape);return this.compileAndRun(E,[f,y])},m.prototype.elu=function(f){if(L().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(f,zc,f.dtype);var y=new Fo(f.shape,Tf);return this.compileAndRun(y,[f])},m.prototype.eluDer=function(f,y){var E=L().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new _s(`
2450  vec4 bGTEZero = vec4(greaterThanEqual(b, vec4(0.)));

2451  return (bGTEZero * a) + ((vec4(1.0) - bGTEZero) * (a * (b + vec4(1.0))));
2452`,f.shape,y.shape):new xa("return (b >= 1.0) ? a : a * (b + 1.0);",f.shape,y.shape);return this.compileAndRun(E,[f,y])},m.prototype.selu=function(f){var y=new Fo(f.shape,`
2453  // Stable and Attracting Fixed Point (0, 1) for Normalized Weights.
2454  // see: https://arxiv.org/abs/1706.02515
2455  float scaleAlpha = 1.7580993408473768;
2456  float scale = 1.0507009873554805;
2457  return (x >= 0.0) ? scale * x : scaleAlpha * (exp(x) - 1.0);
2458`);return this.compileAndRun(y,[f])},m.prototype.int=function(f){var y=new Fo(f.shape,"return float(int(x));");return this.compileAndRun(y,[f],"int32")},m.prototype.clip=function(f,y,E){var z,Y=(z=L().getBool("WEBGL_PACK_CLIP")?new Of(f.shape):new Ol(f.shape)).getCustomSetupFunc(y,E);return this.compileAndRun(z,[f],null,Y)},m.prototype.abs=function(f){if(this.shouldExecuteOnCPU([f]))return this.cpuBackend.abs(f);if(L().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(f,Wg,f.dtype);var y=new Fo(f.shape,Wg);return this.compileAndRun(y,[f])},m.prototype.complexAbs=function(f){var y=this.texData.get(f.dataId),E=new function(Y){this.variableNames=["real","imag"],this.outputShape=Y,this.userCode=`
2459      void main() {
2460        float re = abs(getRealAtOutCoords());
2461        float im = abs(getImagAtOutCoords());
2462        float mx = max(re, im);
2463
2464        // sadly the length function in glsl is not underflow-safe
2465        // (at least not on Intel GPUs). So the safe solution is
2466        // to ensure underflow-safety in all cases.
2467        setOutput(
2468          mx == 0.0 ? 0.0 : mx * length(vec2(1, min(re, im)/mx))
2469        );
2470      }
2471    `}(f.shape),z=[this.makeComplexComponentTensorInfo(f,y.complexTensors.real),this.makeComplexComponentTensorInfo(f,y.complexTensors.imag)];return this.compileAndRun(E,z)},m.prototype.sigmoid=function(f){var y=new Fo(f.shape,"return 1.0 / (1.0 + exp(-1.0 * x));");return this.compileAndRun(y,[f])},m.prototype.softplus=function(f){var y=new Fo(f.shape,`
2472  float epsilon = 1.1920928955078125e-7;
2473  float threshold = log(epsilon) + 2.0;
2474
2475  bool too_large = x > -threshold;
2476  bool too_small = x < threshold;
2477
2478  float result;
2479  float exp_x = exp(x);
2480
2481  if (too_large){
2482    result = x;
2483  }
2484  else if (too_small){
2485    result = exp_x;
2486  }
2487  else{
2488    result = log(exp_x + 1.0);
2489  }
2490  return result;
2491`);return this.compileAndRun(y,[f])},m.prototype.sin=function(f){var y=new Fo(f.shape,`if (isnan(x)) return x;
2492  return sin(x);
2493`);return this.compileAndRun(y,[f])},m.prototype.cos=function(f){var y=new Fo(f.shape,`if (isnan(x)) return x;
2494  return cos(x);
2495`);return this.compileAndRun(y,[f])},m.prototype.tan=function(f){var y=new Fo(f.shape,"return tan(x);");return this.compileAndRun(y,[f])},m.prototype.asin=function(f){var y=new Fo(f.shape,`if (isnan(x)) return x;
2496  if (abs(x) > 1.) {
2497    return NAN;
2498  }
2499  return asin(x);
2500`);return this.compileAndRun(y,[f])},m.prototype.acos=function(f){var y=new Fo(f.shape,`if (isnan(x)) return x;
2501  if (abs(x) > 1.) {
2502    return NAN;
2503  }
2504  return acos(x);
2505`);return this.compileAndRun(y,[f])},m.prototype.atan=function(f){var y=new Fo(f.shape,`if (isnan(x)) return x;
2506  return atan(x);
2507`);return this.compileAndRun(y,[f])},m.prototype.atan2=function(f,y){var E=L().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new _s(`
2508  vec4 result = atan(a, b);
2509  vec4 isNaN = min(vec4(isnan(a)) + vec4(isnan(b)), vec4(1.0));
2510  
2511  result.r = isNaN.r > 0. ? NAN : result.r;
2512  result.g = isNaN.g > 0. ? NAN : result.g;
2513  result.b = isNaN.b > 0. ? NAN : result.b;
2514  result.a = isNaN.a > 0. ? NAN : result.a;
2515
2516  return result;
2517`,f.shape,y.shape):new xa(`
2518  if (isnan(a)) return a;
2519  if (isnan(b)) return b;
2520
2521  return atan(a, b);
2522`,f.shape,y.shape);return this.compileAndRun(E,[f,y])},m.prototype.sinh=function(f){var y=new Fo(f.shape,`
2523  float e2x = exp(x);
2524  return (e2x - 1.0 / e2x) / 2.0;
2525`);return this.compileAndRun(y,[f])},m.prototype.cosh=function(f){var y=new Fo(f.shape,`
2526  float e2x = exp(-x);
2527  return (e2x + 1.0 / e2x) / 2.0;
2528`);return this.compileAndRun(y,[f])},m.prototype.tanh=function(f){var y=new Fo(f.shape,`
2529  float e2x = exp(-2.0 * abs(x));
2530  return sign(x) * (1.0 - e2x) / (1.0 + e2x);
2531`);return this.compileAndRun(y,[f])},m.prototype.asinh=function(f){var y=new Fo(f.shape,"if (isnan(x)) return x;return log(x + sqrt(x * x + 1.0));");return this.compileAndRun(y,[f])},m.prototype.acosh=function(f){var y=new Fo(f.shape,`if (isnan(x)) return x;
2532  if (x < 1.0) return NAN;
2533  return log(x + sqrt(x * x - 1.0));`);return this.compileAndRun(y,[f])},m.prototype.atanh=function(f){var y=new Fo(f.shape,`if (isnan(x)) return x;
2534  if ((x < -1.0) || (x > 1.0)) return NAN;

2535  return (log(1.0 + x) - log(1.0 - x)) / 2.0;`);return this.compileAndRun(y,[f])},m.prototype.erf=function(f){var y=new Fo(f.shape,`
2536  // Error function is calculated approximately with elementary function.
2537  // See "Handbook of Mathematical Functions with Formulas,
2538  // Graphs, and Mathematical Tables", Abramowitz and Stegun.
2539  float p = 0.3275911;
2540  float a1 = 0.254829592;
2541  float a2 = -0.284496736;
2542  float a3 = 1.421413741;
2543  float a4 = -1.453152027;
2544  float a5 = 1.061405429;
2545
2546  float sign = sign(x);
2547  x = abs(x);
2548  float t = 1.0 / (1.0 + p * x);
2549  return sign * (1.0 - (((((a5*t + a4)*t) + a3)*t + a2)*t + a1)*t*exp(-x*x));
2550`);return this.compileAndRun(y,[f])},m.prototype.step=function(f,y){var E=new Fo(f.shape,function(z){return z===void 0&&(z=0),Jv+`
2551    return x > 0.0 ? 1.0 : float(`+z+`);
2552  `}(y));return this.compileAndRun(E,[f])},m.prototype.conv2dByMatMul=function(f,y,E,z,Y,Z){var le=f.shape,de=this.texData.get(f.dataId),we=E.inChannels,De=le[0]*le[1]*le[2],Ne=E.outChannels,Fe=E.dataFormat==="channelsLast",Ve=(De===1||Ne===1)&&we>1e3,Je=le[2]%2!=0&&!!de.isPacked;if(Ve||!L().getBool("WEBGL_LAZILY_UNPACK")||!L().getBool("WEBGL_PACK_BINARY_OPERATIONS")||!Je){var Xe=Fe?le[0]*le[1]*le[2]:le[0]*le[2]*le[3],ot=this.reshape(f,[1,Xe,E.inChannels]),xt=this.reshape(y,[1,E.inChannels,E.outChannels]);return this.reshape(this.fusedBatchMatMul({a:ot,b:xt,transposeA:!1,transposeB:!1,bias:z,activation:Y,preluActivationWeights:Z}),E.outShape)}var kt=Fe?le[0]*le[1]*(le[2]+1):le[0]*le[2]*(le[3]+1),At={dataId:f.dataId,shape:[1,kt,E.inChannels],dtype:f.dtype},Lt=de.shape;de.shape=de.shape.slice(),de.shape[de.shape.length-2]++,Ee(vc(de.shape,At.shape),function(){return"packed reshape "+de.shape+" to "+At.shape+" isn't free"});var tn=this.reshape(y,[1,E.inChannels,E.outChannels]),ln=this.fusedBatchMatMul({a:At,b:tn,transposeA:!1,transposeB:!1,bias:z,activation:Y,preluActivationWeights:Z}),nn=this.texData.get(ln.dataId);return Ee(nn.isPacked,function(){return"batchMatMul result is expected to be packed"}),de.shape=Lt,nn.shape=E.outShape,qe.makeTensorFromDataId(ln.dataId,E.outShape,ln.dtype)},m.prototype.conv2dWithIm2Row=function(f,y,E,z,Y,Z){var le=E.filterWidth,de=E.filterHeight,we=E.inChannels,De=E.outWidth,Ne=E.outHeight,Fe=E.dataFormat==="channelsLast",Ve=le*de*we,Je=Ne*De,Xe=[Ve,Je],ot=f.squeeze([0]),xt=y.reshape([1,Ve,-1]),kt=new function(Rn,Mn,tr){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=Rn;for(var ur=tr.filterWidth,vr=tr.inChannels,kr=tr.strideWidth,yr=tr.strideHeight,mr=tr.padInfo,jr=tr.outWidth,Pr=tr.dilationWidth,ei=tr.dilationHeight,pi=tr.dataFormat,Mi=mr.left,Ro=mr.top,Bo=vr*ur,Zo=qo(),Jo=pi==="channelsLast",ma=Jo?0:1,Fa=Jo?1:2,Es="",vo=0;vo<=1;vo++)for(var ea=0;ea<=1;ea++)Es+=`
2553          blockIndex = rc.y + `+ea+`;
2554          pos = rc.x + `+vo+`;
2555
2556          if(blockIndex < `+Rn[1]+" && pos < "+Rn[0]+`) {
2557            offsetY = int(blockIndex / (`+jr+")) * "+yr+" - "+Ro+`;
2558            d0 = offsetY + `+ei+" * (pos / "+Bo+`);
2559
2560            if(d0 < `+Mn[ma]+` && d0 >= 0) {
2561
2562              offsetX = int(mod(float(blockIndex), `+jr+".) * "+kr+". - "+Mi+`.);
2563              d1 = offsetX + `+Pr+" * (int(mod(float(pos), "+Bo+".) / "+vr+`.));
2564
2565              if(d1 < `+Mn[Fa]+` && d1 >= 0) {
2566
2567                ch = int(mod(float(pos), `+vr+`.));
2568
2569                if (`+Jo+`) {
2570                  innerDims = vec2(d1, ch);
2571                  result[`+(2*vo+ea)+`] = getChannel(
2572                    getA(d0, int(innerDims.x),
2573                    int(innerDims.y)), innerDims);
2574                } else {
2575                  innerDims = vec2(d0, d1);
2576                  result[`+(2*vo+ea)+`] = getChannel(
2577                    getA(ch, int(innerDims.x),
2578                    int(innerDims.y)), innerDims);
2579                }
2580              }
2581            }
2582          }
2583        `;this.userCode=`
2584      void main() {
2585        ivec2 rc = getOutputCoords();
2586
2587        vec4 result = vec4(0);
2588
2589        int blockIndex, pos, offsetY, d0, offsetX, d1, ch;
2590        vec2 innerDims;
2591
2592        `+Es+`
2593
2594        `+Zo.output+` = result;
2595      }
2596    `}(Xe,ot.shape,E),At=this.compileAndRun(kt,[ot]).reshape([1,Xe[0],Xe[1]]),Lt=z!=null,tn=Z!=null,ln=Y?wd(Y,!0):null,nn=new Lc(At.shape,[1,Je,E.outChannels],!0,!1,Lt,ln,tn),cn=[At,xt];z&&cn.push(z),tn&&cn.push(Z);var Dn=this.compileAndRun(nn,cn);return Fe?Dn.reshape([1,Ne,De,E.outChannels]):Dn.reshape([1,E.outChannels,Ne,De])},m.prototype.fusedConv2d=function(f){var y=f.input,E=f.filter,z=f.convInfo,Y=f.bias,Z=f.activation,le=f.preluActivationWeights;if(z.filterHeight===1&&z.filterWidth===1&&z.dilationHeight===1&&z.dilationWidth===1&&z.strideHeight===1&&z.strideWidth===1&&(z.padInfo.type==="SAME"||z.padInfo.type==="VALID"))return this.conv2dByMatMul(y,E,z,Y,Z,le);if(L().getBool("WEBGL_CONV_IM2COL")&&y.shape[0]===1)return this.conv2dWithIm2Row(y,E,z,Y,Z,le);var de=Y!=null,we=le!=null,De=Z?wd(Z,!1):null,Ne=new qm(z,de,De,we),Fe=[y,E];return Y&&Fe.push(Y),le&&Fe.push(le),this.compileAndRun(Ne,Fe)},m.prototype.conv2d=function(f,y,E){if(E.filterHeight===1&&E.filterWidth===1&&E.dilationHeight===1&&E.dilationWidth===1&&E.strideHeight===1&&E.strideWidth===1&&(E.padInfo.type==="SAME"||E.padInfo.type==="VALID"))return this.conv2dByMatMul(f,y,E);if(L().getBool("WEBGL_CONV_IM2COL")&&f.shape[0]===1)return this.conv2dWithIm2Row(f,y,E);var z=new qm(E);return this.compileAndRun(z,[f,y])}

2596,m.prototype.conv2dDerInput=function(f,y,E){var z=new function(Y){this.variableNames=["dy","W"],this.outputShape=Y.inShape;var Z=Y.filterHeight,le=Y.filterWidth,de=Y.strideHeight,we=Y.strideWidth,De=Y.dataFormat==="channelsLast",Ne=Z-1-Y.padInfo.top,Fe=le-1-Y.padInfo.left,Ve=De?1:2,Je=De?2:3,Xe=De?3:1;this.userCode=`
2597      const ivec2 pads = ivec2(`+Ne+", "+Fe+`);
2598
2599      void main() {
2600        ivec4 coords = getOutputCoords();
2601        int batch = coords[0];
2602        int d1 = coords[`+Xe+`];
2603
2604        ivec2 dyCorner = ivec2(coords[`+Ve+"], coords["+Je+`]) - pads;
2605        int dyRCorner = dyCorner.x;
2606        int dyCCorner = dyCorner.y;
2607
2608        // Convolve dy(?, ?, d2) with w(:, :, d1, d2) to compute dx(xR, xC, d1).
2609        // ? = to be determined. : = across all values in that axis.
2610        float dotProd = 0.0;
2611        for (int wR = 0; wR < `+Z+`; wR++) {
2612          float dyR = float(dyRCorner + wR) / `+de+`.0;
2613
2614          if (dyR < 0.0 || dyR >= `+Y.outHeight+`.0 || fract(dyR) > 0.0) {
2615            continue;
2616          }
2617          int idyR = int(dyR);
2618
2619          int wRPerm = `+Z+` - 1 - wR;
2620
2621          for (int wC = 0; wC < `+le+`; wC++) {
2622            float dyC = float(dyCCorner + wC) / `+we+`.0;
2623
2624            if (dyC < 0.0 || dyC >= `+Y.outWidth+`.0 ||
2625                fract(dyC) > 0.0) {
2626              continue;
2627            }
2628            int idyC = int(dyC);
2629
2630            int wCPerm = `+le+` - 1 - wC;
2631
2632            for (int d2 = 0; d2 < `+Y.outChannels+`; d2++) {
2633
2634              if (`+De+`) {
2635                float xValue = getDy(batch, idyR, idyC, d2);
2636                float wValue = getW(wRPerm, wCPerm, d1, d2);
2637                dotProd += xValue * wValue;
2638              } else {
2639                float xValue = getDy(batch, d2, idyR, idyC);
2640                float wValue = getW(wRPerm, wCPerm, d1, d2);
2641                dotProd += xValue * wValue;
2642              }
2643
2644            }
2645          }
2646        }
2647        setOutput(dotProd);
2648      }
2649    `}(E);return this.compileAndRun(z,[f,y])},m.prototype.conv2dDerFilter=function(f,y,E){var z=new function(Y){this.variableNames=["x","dy"],this.outputShape=Y.filterShape;var Z=Y.strideHeight,le=Y.strideWidth,de=Y.padInfo.top,we=Y.padInfo.left,De=Y.dataFormat==="channelsLast";this.userCode=`
2650      void main() {
2651        ivec4 coords = getOutputCoords();
2652        int wR = coords.x;
2653        int wC = coords.y;
2654        int d1 = coords.z;
2655        int d2 = coords.w;
2656
2657        // Convolve x(?, ?, d1) with dy(:, :, d2) to get dw(wR, wC, d1, d2).
2658        // ? = to be determined. : = across all values in that axis.
2659        float dotProd = 0.0;
2660
2661        for (int b = 0; b < `+Y.batchSize+`; b++) {
2662          for (int yR = 0; yR < `+Y.outHeight+`; yR++) {
2663            int xR = wR + yR * `+Z+" - "+de+`;
2664
2665            if (xR < 0 || xR >= `+Y.inHeight+`) {
2666              continue;
2667            }
2668
2669            for (int yC = 0; yC < `+Y.outWidth+`; yC++) {
2670              int xC = wC + yC * `+le+" - "+we+`;
2671
2672              if (xC < 0 || xC >= `+Y.inWidth+`) {
2673                continue;
2674              }
2675
2676              if (`+De+`) {
2677                float dyValue = getDy(b, yR, yC, d2);
2678                float xValue = getX(b, xR, xC, d1);
2679                dotProd += (xValue * dyValue);
2680              } else {
2681                float dyValue = getDy(b, d2, yR, yC);
2682                float xValue = getX(b, d1, xR, xC);
2683                dotProd += (xValue * dyValue);
2684              }
2685
2686            }
2687          }
2688        }
2689        setOutput(dotProd);
2690      }
2691    `}(E);return this.compileAndRun(z,[f,y])},m.prototype.fusedDepthwiseConv2D=function(f){var y,E=f.input,z=f.filter,Y=f.convInfo,Z=f.bias,le=f.activation,de=f.preluActivationWeights,we=L().getBool("WEBGL_PACK_DEPTHWISECONV")&&Y.strideWidth<=2&&Y.outChannels/Y.inChannels==1,De=le?wd(le,we):null,Ne=[E,z],Fe=Z!=null,Ve=de!=null;return Fe&&Ne.push(Z),Ve&&Ne.push(de),we?(y=new yd(Y,Fe,De,Ve),this.compileAndRun(y,Ne)):(y=new Df(Y,Fe,De,Ve),this.compileAndRun(y,Ne))},m.prototype.depthwiseConv2D=function(f,y,E){var z;return L().getBool("WEBGL_PACK_DEPTHWISECONV")&&E.strideWidth<=2&&E.outChannels/E.inChannels==1?(z=new yd(E),this.compileAndRun(z,[f,y])):(z=new Df(E),this.compileAndRun(z,[f,y]))},m.prototype.depthwiseConv2DDerInput=function(f,y,E){var z=new function(Y){this.variableNames=["dy","W"],this.outputShape=Y.inShape;var Z=Y.filterHeight,le=Y.filterWidth,de=Y.strideHeight,we=Y.strideWidth,De=Z-1-Y.padInfo.top,Ne=le-1-Y.padInfo.left,Fe=Y.outChannels/Y.inChannels;this.userCode=`
2692      const ivec2 pads = ivec2(`+De+", "+Ne+`);
2693
2694      void main() {
2695        ivec4 coords = getOutputCoords();
2696        int batch = coords[0];
2697        int d1 = coords[3];
2698        ivec2 dyCorner = coords.yz - pads;
2699        int dyRCorner = dyCorner.x;
2700        int dyCCorner = dyCorner.y;
2701
2702        float dotProd = 0.0;
2703
2704        for (int wR = 0; wR < `+Z+`; wR++) {
2705          float dyR = float(dyRCorner + wR) / `+de+`.0;
2706
2707          if (dyR < 0.0 || dyR >= `+Y.outHeight+`.0 || fract(dyR) > 0.0) {
2708            continue;
2709          }
2710          int idyR = int(dyR);
2711
2712          int wRPerm = `+Z+` - 1 - wR;
2713
2714          for (int wC = 0; wC < `+le+`; wC++) {
2715            float dyC = float(dyCCorner + wC) / `+we+`.0;
2716
2717            if (dyC < 0.0 || dyC >= `+Y.outWidth+`.0 ||
2718                fract(dyC) > 0.0) {
2719              continue;
2720            }
2721            int idyC = int(dyC);
2722
2723            int wCPerm = `+le+` - 1 - wC;
2724
2725            // TO DO: Vec4 over the channelMul
2726            for (int dm = 0; dm < `+Fe+`; dm++) {
2727              int d2 = d1 * `+Fe+` + dm;
2728              float xValue = getDy(batch, idyR, idyC, d2);
2729              float wValue = getW(wRPerm, wCPerm, d1, dm);
2730              dotProd += xValue * wValue;
2731            }
2732          }
2733        }
2734        setOutput(dotProd);
2735      }
2736    `}(E);return this.compileAndRun(z,[f,y])},m.prototype.depthwiseConv2DDerFilter=function(f,y,E){var z=new function(Y){this.variableNames=["x","dy"],this.outputShape=Y.filterShape;var Z=Y.strideHeight,le=Y.strideWidth,de=Y.padInfo.top,we=Y.padInfo.left,De=Y.outChannels/Y.inChannels;this.userCode=`
2737      void main() {
2738        ivec4 coords = getOutputCoords();
2739        int wR = coords.x;
2740        int wC = coords.y;
2741        int d1 = coords.z;
2742        int dm = coords.w;
2743        int d2 = d1 * `+De+` + dm;
2744
2745        float dotProd = 0.0;
2746
2747        // TO DO: Vec4 over the batch size
2748        for (int b = 0; b < `+Y.batchSize+`; b++) {
2749          for (int yR = 0; yR < `+Y.outHeight+`; yR++) {
2750            int xR = wR + yR * `+Z+" - "+de+`;
2751
2752            if (xR < 0 || xR >= `+Y.inHeight+`) {
2753              continue;
2754            }
2755
2756            for (int yC = 0; yC < `+Y.outWidth+`; yC++) {
2757              int xC = wC + yC * `+le+" - "+we+`;
2758
2759              if (xC < 0 || xC >= `+Y.inWidth+`) {
2760                continue;
2761              }
2762
2763              float dyValue = getDy(b, yR, yC, d2);
2764              float xValue = getX(b, xR, xC, d1);
2765              dotProd += (xValue * dyValue);
2766            }
2767          }
2768        }
2769        setOutput(dotProd);
2770      }
2771    `}(E);return this.compileAndRun(z,[f,y])},m.prototype.conv3d=function(f,y,E){var z=new function(Y){this.variableNames=["x","W"],this.outputShape=Y.outShape;var Z=Y.padInfo.front,le=Y.padInfo.top,de=Y.padInfo.left,we=Y.strideDepth,De=Y.strideHeight,Ne=Y.strideWidth,Fe=Y.dilationDepth,Ve=Y.dilationHeight,Je=Y.dilationWidth,Xe=Y.filterDepth,ot=Y.filterHeight,xt=Y.filterWidth,kt=4*Math.floor(Y.inChannels/4),At=Y.inChannels%4;this.userCode=`
2772      const ivec3 strides = ivec3(`+we+", "+De+", "+Ne+`);
2773      const ivec3 pads = ivec3(`+Z+", "+le+", "+de+`);
2774
2775      void main() {
2776        ivec5 coords = getOutputCoords();
2777        int batch = coords.x;
2778        int d2 = coords.u;
2779
2780        ivec3 xFRCCorner = ivec3(coords.y, coords.z, coords.w) * strides - pads;
2781        int xFCorner = xFRCCorner.x;
2782        int xRCorner = xFRCCorner.y;
2783        int xCCorner = xFRCCorner.z;
2784
2785        // Convolve x(?, ?, ?, d1) with w(:, :, :, d1, d2) to get
2786        // y(yF, yR, yC, d2). ? = to be determined. : = across all
2787        // values in that axis.
2788        float dotProd = 0.0;
2789        for (int wF = 0; wF < `+Xe+`; wF++) {
2790          int xF = xFCorner + wF * `+Fe+`;
2791
2792          if (xF < 0 || xF >= `+Y.inDepth+`) {
2793            continue;
2794          }
2795
2796          for (int wR = 0; wR < `+ot+`; wR++) {
2797            int xR = xRCorner + wR * `+Ve+`;
2798
2799            if (xR < 0 || xR >= `+Y.inHeight+`) {
2800              continue;
2801            }
2802
2803            for (int wC = 0; wC < `+xt+`; wC++) {
2804              int xC = xCCorner + wC * `+Je+`;
2805
2806              if (xC < 0 || xC >= `+Y.inWidth+`) {
2807                continue;
2808              }
2809
2810              for (int d1 = 0; d1 < `+kt+`; d1 += 4) {
2811                vec4 xValues = vec4(
2812                  getX(batch, xF, xR, xC, d1),
2813                  getX(batch, xF, xR, xC, d1 + 1),
2814                  getX(batch, xF, xR, xC, d1 + 2),
2815                  getX(batch, xF, xR, xC, d1 + 3)
2816                );
2817                vec4 wValues = vec4(
2818                  getW(wF, wR, wC, d1, d2),
2819                  getW(wF, wR, wC, d1 + 1, d2),
2820                  getW(wF, wR, wC, d1 + 2, d2),
2821                  getW(wF, wR, wC, d1 + 3, d2)
2822                );
2823
2824                dotProd += dot(xValues, wValues);
2825              }
2826
2827              if (`+(At===1)+`) {
2828                dotProd +=
2829                  getX(batch, xF, xR, xC, `+kt+`) *
2830                  getW(wF, wR, wC, `+kt+`, d2);
2831              } else if (`+(At===2)+`) {
2832                vec2 xValues = vec2(
2833                  getX(batch, xF, xR, xC, `+kt+`),
2834                  getX(batch, xF, xR, xC, `+kt+` + 1)
2835                );
2836                vec2 wValues = vec2(
2837                  getW(wF, wR, wC, `+kt+`, d2),
2838                  getW(wF, wR, wC, `+kt+` + 1, d2)
2839                );
2840                dotProd += dot(xValues, wValues);
2841              } else if (`+(At===3)+`) {
2842                vec3 xValues = vec3(
2843                  getX(batch, xF, xR, xC, `+kt+`),
2844                  getX(batch, xF, xR, xC, `+kt+` + 1),
2845                  getX(batch, xF, xR, xC, `+kt+` + 2)
2846                );
2847                vec3 wValues = vec3(
2848                  getW(wF, wR, wC, `+kt+`, d2),
2849                  getW(wF, wR, wC, `+kt+` + 1, d2),
2850                  getW(wF, wR, wC, `+kt+` + 2, d2)
2851                );
2852                dotProd += dot(xValues, wValues);
2853              }
2854            }
2855          }
2856        }
2857        setOutput(dotProd);
2858      }
2859    `}(E);return this.compileAndRun(z,[f,y])},m.prototype.conv3dDerInput=function(f,y,E){var z=new function(Y){this.variableNames=["dy","W"],this.outputShape=Y.inShape;var Z=Y.filterDepth,le=Y.filterHeight,de=Y.filterWidth,we=Y.strideDepth,De=Y.strideHeight,Ne=Y.strideWidth,Fe=Z-1-Y.padInfo.front,Ve=le-1-Y.padInfo.top,Je=de-1-Y.padInfo.left;this.userCode=`
2860      const ivec3 pads = ivec3(`+Fe+", "+Ve+", "+Je+`);
2861
2862      void main() {
2863        ivec5 coords = getOutputCoords();
2864        int batch = coords.x;
2865        int d1 = coords.u;
2866
2867
2868        ivec3 dyCorner = ivec3(coords.y, coords.z, coords.w) - pads;
2869        int dyFCorner = dyCorner.x;
2870        int dyRCorner = dyCorner.y;
2871        int dyCCorner = dyCorner.z;
2872
2873        float dotProd = 0.0;
2874        for (int wF = 0; wF < `+Z+`; wF++) {
2875          float dyF = float(dyFCorner + wF) / `+we+`.0;
2876
2877          if (dyF < 0.0 || dyF >= `+Y.outDepth+`.0 || fract(dyF) > 0.0) {
2878            continue;
2879          }
2880          int idyF = int(dyF);
2881
2882          int wFPerm = `+Z+` - 1 - wF;
2883
2884          for (int wR = 0; wR < `+le+`; wR++) {
2885            float dyR = float(dyRCorner + wR) / `+De+`.0;
2886
2887            if (dyR < 0.0 || dyR >= `+Y.outHeight+`.0 ||
2888              fract(dyR) > 0.0) {
2889              continue;
2890            }
2891            int idyR = int(dyR);
2892
2893            int wRPerm = `+le+` - 1 - wR;
2894
2895            for (int wC = 0; wC < `+de+`; wC++) {
2896              float dyC = float(dyCCorner + wC) / `+Ne+`.0;
2897
2898              if (dyC < 0.0 || dyC >= `+Y.outWidth+`.0 ||
2899                  fract(dyC) > 0.0) {
2900                continue;
2901              }
2902              int idyC = int(dyC);
2903
2904              int wCPerm = `+de+` - 1 - wC;
2905
2906              for (int d2 = 0; d2 < `+Y.outChannels+`; d2++) {
2907                float xValue = getDy(batch, idyF, idyR, idyC, d2);
2908                float wValue = getW(wFPerm, wRPerm, wCPerm, d1, d2);
2909                dotProd += xValue * wValue;
2910              }
2911            }
2912          }
2913        }
2914        setOutput(dotProd);
2915      }
2916    `}(E);return this.compileAndRun(z,[f,y])},m.prototype.conv3dDerFilter=function(f,y,E){var z=new function(Y){this.variableNames=["x","dy"],this.outputShape=Y.filterShape;var Z=Y.strideDepth,le=Y.strideHeight,de=Y.strideWidth,we=Y.padInfo.front,De=Y.padInfo.top,Ne=Y.padInfo.left;this.userCode=`
2917      void main() {
2918        ivec5 coords = getOutputCoords();
2919        int wF = coords.x;
2920        int wR = coords.y;
2921        int wC = coords.z;
2922        int d1 = coords.w;
2923        int d2 = coords.u;
2924
2925        float dotProd = 0.0;
2926
2927        for (int b = 0; b < `+Y.batchSize+`; b++) {
2928          for (int yF = 0; yF < `+Y.outDepth+`; yF++) {
2929            int xF = wF + yF * `+Z+" - "+we+`;
2930
2931            if (xF < 0 || xF >= `+Y.inDepth+`) {
2932              continue;
2933            }
2934
2935            for (int yR = 0; yR < `+Y.outHeight+`; yR++) {
2936              int xR = wR + yR * `+le+" - "+De+`;
2937
2938              if (xR < 0 || xR >= `+Y.inHeight+`) {
2939                continue;
2940              }
2941
2942              for (int yC = 0; yC < `+Y.outWidth+`; yC++) {
2943                int xC = wC + yC * `+de+" - "+Ne+`;
2944
2945                if (xC < 0 || xC >= `+Y.inWidth+`) {
2946                  continue;
2947                }
2948
2949                float dyValue = getDy(b, yF, yR, yC, d2);
2950                float xValue = getX(b, xF, xR, xC, d1);
2951                dotProd += (xValue * dyValue);
2952              }
2953            }
2954          }
2955        }
2956        setOutput(dotProd);
2957      }
2958    `}(E);return this.compileAndRun(z,[f,y])},m.prototype.maxPool=function(f,y){var E=new Bp(y,"max",!1);return this.compileAndRun(E,[f])},m.prototype.avgPool=function(f,y){var E=new Bp(y,"avg",!1);return this.compileAndRun(E,[f],"float32")},m.prototype.maxPoolBackprop=function(f,y,E,z){var Y=new Bp(z,"max",!0),Z=this.compileAndRun(Y,[y]),le=new function(we){this.variableNames=["dy","maxPos"],this.outputShape=we.inShape;var De=we.strideHeight,Ne=we.strideWidth,Fe=we.dilationHeight,Ve=we.effectiveFilterHeight,Je=we.effectiveFilterWidth,Xe=Ve-1-we.padInfo.top,ot=Je-1-we.padInfo.left,xt=Ve*Je-1;this.userCode=`
2959      const ivec2 pads = ivec2(`+Xe+", "+ot+`);
2960
2961      void main() {
2962        ivec4 coords = getOutputCoords();
2963        int b = coords[0];
2964        int d = coords[3];
2965
2966        ivec2 dyRCCorner = coords.yz - pads;
2967        int dyRCorner = dyRCCorner.x;
2968        int dyCCorner = dyRCCorner.y;
2969
2970        // Convolve dy(?, ?, d) with pos mask(:, :, d) to get dx(xR, xC, d).
2971        // ? = to be determined. : = across all values in that axis.
2972        float dotProd = 0.0;
2973        for (int wR = 0; wR < `+Ve+`;
2974          wR += `+Fe+`) {
2975          float dyR = float(dyRCorner + wR) / `+De+`.0;
2976
2977          if (dyR < 0.0 || dyR >= `+we.outHeight+`.0 || fract(dyR) > 0.0) {
2978            continue;
2979          }
2980          int idyR = int(dyR);
2981
2982          for (int wC = 0; wC < `+Je+`; wC++) {
2983            float dyC = float(dyCCorner + wC) / `+Ne+`.0;
2984
2985            if (dyC < 0.0 || dyC >= `+we.outWidth+`.0 ||
2986                fract(dyC) > 0.0) {
2987              continue;
2988            }
2989            int idyC = int(dyC);
2990
2991            float dyValue = getDy(b, idyR, idyC, d);
2992            int maxPosValue = `+xt+` - int(getMaxPos(b, idyR, idyC, d));
2993
2994            // Get the current value, check it against the value from the
2995            // position matrix.
2996            int curPosValue = wR * `+Je+` + wC;
2997            float mask = float(maxPosValue == curPosValue ? 1.0 : 0.0);
2998
2999            dotProd += dyValue * mask;
3000          }
3001        }
3002        setOutput(dotProd);
3003      }
3004    `}(z),de=this.compileAndRun(le,[f,Z],y.dtype);return Z.dispose(),de},m.prototype.avgPoolBackprop=function(f,y,E){var z=new function(Y){this.variableNames=["dy"],this.outputShape=Y.inShape;var Z=Y.filterHeight,le=Y.filterWidth,de=Y.strideHeight,we=Y.strideWidth,De=Y.dilationHeight,Ne=Y.dilationWidth,Fe