(function(b,P){typeof exports=="object"&&typeof module<"u"?P(exports,require("@lookingglass/webxr-polyfill/src/api/index"),require("@lookingglass/webxr-polyfill/src/api/XRSystem"),require("@lookingglass/webxr-polyfill/src/WebXRPolyfill"),require("holoplay-core"),require("@lookingglass/webxr-polyfill/src/devices/XRDevice"),require("@lookingglass/webxr-polyfill/src/api/XRSpace"),require("gl-matrix"),require("@lookingglass/webxr-polyfill/src/api/XRWebGLLayer")):typeof define=="function"&&define.amd?define(["exports","@lookingglass/webxr-polyfill/src/api/index","@lookingglass/webxr-polyfill/src/api/XRSystem","@lookingglass/webxr-polyfill/src/WebXRPolyfill","holoplay-core","@lookingglass/webxr-polyfill/src/devices/XRDevice","@lookingglass/webxr-polyfill/src/api/XRSpace","gl-matrix","@lookingglass/webxr-polyfill/src/api/XRWebGLLayer"],P):(b=typeof globalThis<"u"?globalThis:b||self,P(b["Looking Glass WebXR"]={},b["@lookingglass/webxr-polyfill/src/api/index"],b["@lookingglass/webxr-polyfill/src/api/XRSystem"],b["@lookingglass/webxr-polyfill/src/WebXRPolyfill"],b.holoPlayCore,b["@lookingglass/webxr-polyfill/src/devices/XRDevice"],b["@lookingglass/webxr-polyfill/src/api/XRSpace"],b.glMatrix,b["@lookingglass/webxr-polyfill/src/api/XRWebGLLayer"]))})(this,function(b,P,W,ae,J,ne,re,g,Q){"use strict";var Xe=Object.defineProperty;var Be=(b,P,W)=>P in b?Xe(b,P,{enumerable:!0,configurable:!0,writable:!0,value:W}):b[P]=W;var _=(b,P,W)=>(Be(b,typeof P!="symbol"?P+"":P,W),W);const X=t=>t&&typeof t=="object"&&"default"in t?t:{default:t};function oe(t){if(t&&t.__esModule)return t;const i=Object.create(null,{[Symbol.toStringTag]:{value:"Module"}});if(t){for(const e in t)if(e!=="default"){const n=Object.getOwnPropertyDescriptor(t,e);Object.defineProperty(i,e,n.get?n:{enumerable:!0,get:()=>t[e]})}}return i.default=t,Object.freeze(i)}const ee=X(P),le=X(W),ce=X(ae),ue=oe(J),he=X(ne),de=X(re),fe=X(Q),Y=1.6;var j;(function(t){t[t.Swizzled=0]="Swizzled",t[t.Center=1]="Center",t[t.Quilt=2]="Quilt"})(j||(j={}));class pe extends EventTarget{constructor(e){super();_(this,"_calibration",{configVersion:"1.0",pitch:{value:45},slope:{value:-5},center:{value:-.5},viewCone:{value:40},invView:{value:1},verticalAngle:{value:0},DPI:{value:338},screenW:{value:3840},screenH:{value:2160},flipImageX:{value:0},flipImageY:{value:0},flipSubp:{value:0},serial:"",subpixelCells:[],CellPatternMode:{value:0}});_(this,"_viewControls",{tileHeight:512,numViews:48,trackballX:0,trackballY:0,targetX:0,targetY:Y,targetZ:-.5,targetDiam:2,fovy:14/180*Math.PI,depthiness:1.25,inlineView:j.Center,capturing:!1,quiltResolution:null,columns:null,rows:null,popup:null,XRSession:null,lkgCanvas:null,appCanvas:null,subpixelMode:1,filterMode:1,gaussianSigma:.01});_(this,"LookingGlassDetected");this._viewControls={...this._viewControls,...e},this.syncCalibration()}syncCalibration(){new ue.Client(e=>{if(e.devices.length<1){console.log("No Looking Glass devices found");return}e.devices.length>1&&console.log("More than one Looking Glass device found... using the first one"),this.calibration=e.devices[0].calibration})}addEventListener(e,n,s){super.addEventListener(e,n,s)}onConfigChange(){this.dispatchEvent(new Event("on-config-changed"))}get calibration(){return this._calibration}set calibration(e){this._calibration={...this._calibration,...e},this.onConfigChange()}updateViewControls(e){e!=null&&(this._viewControls={...this._viewControls,...e},this.onConfigChange())}get tileHeight(){return Math.round(this.framebufferHeight/this.quiltHeight)}get quiltResolution(){if(this._viewControls.quiltResolution!=null)return{width:this._viewControls.quiltResolution.width,height:this._viewControls.quiltResolution.height};{const e=this._calibration.serial;switch(!0){case e.startsWith("LKG-2K"):return{width:4096,height:4096};case e.startsWith("LKG-4K"):return{width:4096,height:4096};case e.startsWith("LKG-8K"):return{width:8192,height:8192};case e.startsWith("LKG-P"):return{width:3360,height:3360};case e.startsWith("LKG-A"):return{width:4096,height:4096};case e.startsWith("LKG-B"):return{width:8192,height:8192};case e.startsWith("LKG-D"):return{width:8192,height:8192};case e.startsWith("LKG-F"):return{width:3360,height:3360};case e.startsWith("LKG-E"):return{width:4092,height:4092};case e.startsWith("LKG-H"):return{width:5995,height:6e3};case e.startsWith("LKG-J"):return{width:5999,height:5999};case e.startsWith("LKG-K"):return{width:8184,height:8184};case e.startsWith("LKG-L"):return{width:8190,height:8190};default:return{width:4096,height:4096}}}}set quiltResolution(e){this.updateViewControls({quiltResolution:e})}get numViews(){return this.quiltWidth*this.quiltHeight}get targetX(){return this._viewControls.targetX}set targetX(e){this.updateViewControls({targetX:e})}get targetY(){return this._viewControls.targetY}set targetY(e){this.updateViewControls({targetY:e})}get targetZ(){return this._viewControls.targetZ}set targetZ(e){this.updateViewControls({targetZ:e})}get trackballX(){return this._viewControls.trackballX}set trackballX(e){this.updateViewControls({trackballX:e})}get trackballY(){return this._viewControls.trackballY}set trackballY(e){this.updateViewControls({trackballY:e})}get targetDiam(){return this._viewControls.targetDiam}set targetDiam(e){this.updateViewControls({targetDiam:e})}get fovy(){return this._viewControls.fovy}set fovy(e){this.updateViewControls({fovy:e})}get depthiness(){return this._viewControls.depthiness}set depthiness(e){this.updateViewControls({depthiness:e})}get inlineView(){return this._viewControls.inlineView}set inlineView(e){this.updateViewControls({inlineView:e})}get capturing(){return this._viewControls.capturing}set capturing(e){this.updateViewControls({capturing:e})}get subpixelMode(){return this._viewControls.subpixelMode}set subpixelMode(e){this.updateViewControls({subpixelMode:e})}get filterMode(){return this._viewControls.filterMode}set filterMode(e){this.updateViewControls({filterMode:e})}get gaussianSigma(){return this._viewControls.gaussianSigma}set gaussianSigma(e){this.updateViewControls({gaussianSigma:e})}get popup(){return this._viewControls.popup}set popup(e){this.updateViewControls({popup:e})}get XRSession(){return this._viewControls.XRSession}set XRSession(e){this.updateViewControls({XRSession:e})}get lkgCanvas(){return this._viewControls.lkgCanvas}set lkgCanvas(e){this.updateViewControls({lkgCanvas:e})}get appCanvas(){return this._viewControls.appCanvas}set appCanvas(e){this.updateViewControls({appCanvas:e})}get columns(){return this._viewControls.columns}set columns(e){this.updateViewControls({columns:e})}get rows(){return this._viewControls.rows}set rows(e){this.updateViewControls({rows:e})}get aspect(){return this._calibration.screenW.value/this._calibration.screenH.value}get tileWidth(){return Math.round(this.framebufferWidth/this.quiltWidth)}get framebufferWidth(){return this.quiltResolution.width}get quiltWidth(){if(this._viewControls.columns!=null)return this._viewControls.columns;const e=this._calibration.serial;switch(!0){case e.startsWith("LKG-2K"):return 5;case e.startsWith("LKG-4K"):return 5;case e.startsWith("LKG-8K"):return 5;case e.startsWith("LKG-P"):return 8;case e.startsWith("LKG-A"):return 5;case e.startsWith("LKG-B"):return 5;case e.startsWith("LKG-D"):return 8;case e.startsWith("LKG-F"):return 8;case e.startsWith("LKG-E"):return 11;case e.startsWith("LKG-H"):return 11;case e.startsWith("LKG-J"):return 7;case e.startsWith("LKG-K"):return 11;case e.startsWith("LKG-L"):return 7;default:return 1}}get quiltHeight(){if(this._viewControls.rows!=null)return this._viewControls.rows;const e=this._calibration.serial;switch(!0){case e.startsWith("LKG-2K"):return 9;case e.startsWith("LKG-4K"):return 9;case e.startsWith("LKG-8K"):return 9;case e.startsWith("LKG-P"):return 6;case e.startsWith("LKG-A"):return 9;case e.startsWith("LKG-B"):return 9;case e.startsWith("LKG-D"):return 9;case e.startsWith("LKG-F"):return 6;case e.startsWith("LKG-E"):return 6;case e.startsWith("LKG-H"):return 6;case e.startsWith("LKG-J"):return 7;case e.startsWith("LKG-K"):return 6;case e.startsWith("LKG-L"):return 7;default:return 1}}get framebufferHeight(){return this.quiltResolution.height}get viewCone(){return this._calibration.viewCone.value*this.depthiness/180*Math.PI}get tilt(){return this._calibration.screenH.value/(this._calibration.screenW.value*this._calibration.slope.value)*(this._calibration.flipImageX.value?-1:1)}get subp(){return 1/(this._calibration.screenW.value*3)*(this._calibration.flipImageX.value?-1:1)}get pitch(){return this._calibration.pitch.value*this._calibration.screenW.value/this._calibration.DPI.value*Math.cos(Math.atan(1/this._calibration.slope.value))}get subpixelCells(){const e=new Float32Array(6*this._calibration.subpixelCells.length);return this._calibration.subpixelCells.forEach((n,s)=>{n.ROffsetX/=this.calibration.screenW.value,n.ROffsetY/=this.calibration.screenH.value,n.GOffsetX/=this.calibration.screenW.value,n.GOffsetY/=this.calibration.screenH.value,n.BOffsetX/=this.calibration.screenW.value,n.BOffsetY/=this.calibration.screenH.value,e[s*6+0]=n.ROffsetX,e[s*6+1]=n.ROffsetY,e[s*6+2]=n.GOffsetX,e[s*6+3]=n.GOffsetY,e[s*6+4]=n.BOffsetX,e[s*6+5]=n.BOffsetY}),e}}let z=null;function D(){return z==null&&(z=new pe),z}function te(t){const i=D();t!=null&&i.updateViewControls(t)}async function me(){const t=D();let i=2;async function e(){if(t.appCanvas!=null)try{t.capturing=!0,await new Promise(u=>{requestAnimationFrame(u)}),t.appCanvas.width=t.quiltResolution.width,t.appCanvas.height=t.quiltResolution.height;let s=t.appCanvas.toDataURL();const o=document.createElement("a");o.style.display="none",o.href=s,o.download=`hologram_qs${t.quiltWidth}x${t.quiltHeight}a${t.aspect}.png`,document.body.appendChild(o),o.click(),document.body.removeChild(o),window.URL.revokeObjectURL(s)}catch(s){console.error("Error while capturing canvas data:",s),t.capturing=!1}finally{t.inlineView=i,t.capturing=!1,t.appCanvas.width=t.calibration.screenW.value,t.appCanvas.height=t.calibration.screenH.value}}const n=document.getElementById("screenshotbutton");n&&n.addEventListener("click",()=>{i=t.inlineView;const s=B.getInstance();if(!s){console.warn("LookingGlassXRDevice not initialized");return}t.inlineView=2,s.captureScreenshot=!0,setTimeout(()=>{s.screenshotCallback=e},100)})}function be(){var i,e,n,s,o;const t=D();if(t.lkgCanvas==null)console.warn("window placement called without a valid XR Session!");else{let u=function(){let a=d.d-d.a,r=d.w-d.s;a&&r&&(a*=Math.sqrt(.5),r*=Math.sqrt(.5));const l=t.trackballX,h=t.trackballY,m=Math.cos(l)*a-Math.sin(l)*Math.cos(h)*r,R=-Math.sin(h)*r,S=-Math.sin(l)*a-Math.cos(l)*Math.cos(h)*r;t.targetX=t.targetX+m*t.targetDiam*.03,t.targetY=t.targetY+R*t.targetDiam*.03,t.targetZ=t.targetZ+S*t.targetDiam*.03,requestAnimationFrame(u)};const x=document.createElement("style");document.head.appendChild(x),(i=x.sheet)==null||i.insertRule("#LookingGlassWebXRControls * { all: revert; font-family: sans-serif }");const c=document.createElement("div");c.id="LookingGlassWebXRControls",c.style.position="fixed",c.style.zIndex="1000",c.style.padding="15px",c.style.width="320px",c.style.maxWidth="calc(100vw - 18px)",c.style.maxHeight="calc(100vh - 18px)",c.style.whiteSpace="nowrap",c.style.background="rgba(0, 0, 0, 0.6)",c.style.color="white",c.style.borderRadius="10px",c.style.right="15px",c.style.bottom="15px",c.style.flex="row";const v=document.createElement("div");c.appendChild(v),v.style.width="100%",v.style.textAlign="center",v.style.fontWeight="bold",v.style.marginBottom="8px",v.innerText="Looking Glass Controls";const f=document.createElement("button");f.style.display="block",f.style.margin="auto",f.style.width="100%",f.style.height="35px",f.style.padding="4px",f.style.marginBottom="8px",f.style.borderRadius="8px",f.id="screenshotbutton",c.appendChild(f),f.innerText="Save Hologram",t.quiltResolution.height*t.quiltResolution.width>33177600?(f.style.backgroundColor="#ccc",f.style.color="#999",f.style.cursor="not-allowed",f.title="Button is disabled because the quilt resolution is too large."):(f.style.backgroundColor="",f.style.color="",f.style.cursor="",f.title="");const y=document.createElement("button");y.style.display="block",y.style.margin="auto",y.style.width="100%",y.style.height="35px",y.style.padding="4px",y.style.marginBottom="8px",y.style.borderRadius="8px",y.id="copybutton",c.appendChild(y),y.innerText="Copy Config",y.addEventListener("click",()=>{ve(t)});const C=document.createElement("div");c.appendChild(C),C.style.width="290px",C.style.whiteSpace="normal",C.style.color="rgba(255,255,255,0.7)",C.style.fontSize="14px",C.style.margin="5px 0",C.innerHTML="Click the popup and use WASD, mouse left/right drag, and scroll.";const k=document.createElement("div");c.appendChild(k);const T=(a,r,l)=>{const h=l.stringify,m=document.createElement("div");m.style.marginBottom="8px",k.appendChild(m);const R=a,S=t[a],L=document.createElement("label");m.appendChild(L),L.innerText=l.label,L.setAttribute("for",R),L.style.width="100px",L.style.display="inline-block",L.style.textDecoration="dotted underline 1px",L.style.fontFamily='"Courier New"',L.style.fontSize="13px",L.style.fontWeight="bold",L.title=l.title;const w=document.createElement("input");m.appendChild(w),Object.assign(w,r),w.id=R,w.title=l.title,w.value=r.value!==void 0?r.value:S;const H=E=>{t[a]=E,V(E)};w.oninput=()=>{const E=r.type==="range"?parseFloat(w.value):r.type==="checkbox"?w.checked:w.value;H(E)};const q=E=>{let p=E(t[a]);l.fixRange&&(p=l.fixRange(p),w.max=Math.max(parseFloat(w.max),p).toString(),w.min=Math.min(parseFloat(w.min),p).toString()),w.value=p,H(p)};r.type==="range"&&(w.style.width="110px",w.style.height="8px",w.onwheel=E=>{q(p=>p+Math.sign(E.deltaX-E.deltaY)*r.step)});let V=E=>{};if(h){const E=document.createElement("span");E.style.fontFamily='"Courier New"',E.style.fontSize="13px",E.style.marginLeft="3px",m.appendChild(E),V=p=>{E.innerHTML=h(p)},V(S)}return q};T("fovy",{type:"range",min:1/180*Math.PI,max:120.1/180*Math.PI,step:1/180*Math.PI},{label:"fov",title:"perspective fov (degrades stereo effect)",fixRange:a=>Math.max(1/180*Math.PI,Math.min(a,120.1/180*Math.PI)),stringify:a=>{const r=a/Math.PI*180,l=Math.atan(Math.tan(a/2)*t.aspect)*2/Math.PI*180;return`${r.toFixed()}&deg;&times;${l.toFixed()}&deg;`}}),T("depthiness",{type:"range",min:0,max:2,step:.01},{label:"depthiness",title:"exaggerates depth by multiplying the width of the view cone (as reported by the firmware) - can somewhat compensate for depthiness lost using higher fov.",fixRange:a=>Math.max(0,a),stringify:a=>`${a.toFixed(2)}x`}),T("inlineView",{type:"range",min:0,max:2,step:1},{label:"inline view",title:"what to show inline on the original canvas (swizzled = no overwrite)",fixRange:a=>Math.max(0,Math.min(a,2)),stringify:a=>a===0?"swizzled":a===1?"center":a===2?"quilt":"?"}),T("filterMode",{type:"range",min:0,max:3,step:1},{label:"view filtering mode",title:"controls the method used for view blending",fixRange:a=>Math.max(0,Math.min(a,2)),stringify:a=>a===0?"old, studio style":a===1?"2 view":a===2?"gaussian":a===3?"10 view gaussian":"?"}),T("gaussianSigma",{type:"range",min:-1,max:1,step:.01},{label:"gaussian sigma",title:"control view blending",fixRange:a=>Math.max(-1,Math.min(a,1)),stringify:a=>a}),t.lkgCanvas.oncontextmenu=a=>{a.preventDefault()},t.lkgCanvas.addEventListener("wheel",a=>{const r=t.targetDiam,l=1.1,h=Math.log(r)/Math.log(l);return t.targetDiam=Math.pow(l,h+a.deltaY*.01)},{passive:!1}),t.lkgCanvas.addEventListener("mousemove",a=>{const r=a.movementX,l=-a.movementY;if(a.buttons&2||a.buttons&1&&(a.shiftKey||a.ctrlKey)){const h=t.trackballX,m=t.trackballY,R=-Math.cos(h)*r+Math.sin(h)*Math.sin(m)*l,S=-Math.cos(m)*l,L=Math.sin(h)*r+Math.cos(h)*Math.sin(m)*l;t.targetX=t.targetX+R*t.targetDiam*.001,t.targetY=t.targetY+S*t.targetDiam*.001,t.targetZ=t.targetZ+L*t.targetDiam*.001}else a.buttons&1&&(t.trackballX=t.trackballX-r*.01,t.trackballY=t.trackballY-l*.01)});const d={w:0,a:0,s:0,d:0};return t.lkgCanvas.addEventListener("keydown",a=>{switch(a.code){case"KeyW":d.w=1;break;case"KeyA":d.a=1;break;case"KeyS":d.s=1;break;case"KeyD":d.d=1;break}}),t.lkgCanvas.addEventListener("keyup",a=>{switch(a.code){case"KeyW":d.w=0;break;case"KeyA":d.a=0;break;case"KeyS":d.s=0;break;case"KeyD":d.d=0;break}}),(e=t.appCanvas)==null||e.addEventListener("wheel",a=>{const r=t.targetDiam,l=1.1,h=Math.log(r)/Math.log(l);return t.targetDiam=Math.pow(l,h+a.deltaY*.01)},{passive:!1}),(n=t.appCanvas)==null||n.addEventListener("mousemove",a=>{const r=a.movementX,l=-a.movementY;if(a.buttons&2||a.buttons&1&&(a.shiftKey||a.ctrlKey)){const h=t.trackballX,m=t.trackballY,R=-Math.cos(h)*r+Math.sin(h)*Math.sin(m)*l,S=-Math.cos(m)*l,L=Math.sin(h)*r+Math.cos(h)*Math.sin(m)*l;t.targetX=t.targetX+R*t.targetDiam*.001,t.targetY=t.targetY+S*t.targetDiam*.001,t.targetZ=t.targetZ+L*t.targetDiam*.001}else a.buttons&1&&(t.trackballX=t.trackballX-r*.01,t.trackballY=t.trackballY-l*.01)}),(s=t.appCanvas)==null||s.addEventListener("keydown",a=>{switch(a.code){case"KeyW":d.w=1;break;case"KeyA":d.a=1;break;case"KeyS":d.s=1;break;case"KeyD":d.d=1;break}}),(o=t.appCanvas)==null||o.addEventListener("keyup",a=>{switch(a.code){case"KeyW":d.w=0;break;case"KeyA":d.a=0;break;case"KeyS":d.s=0;break;case"KeyD":d.d=0;break}}),requestAnimationFrame(u),setTimeout(()=>{me()},1e3),c}}function ve(t){const i={targetX:t.targetX,targetY:t.targetY,targetZ:t.targetZ,fovy:`${Math.round(t.fovy/Math.PI*180)} * Math.PI / 180`,targetDiam:t.targetDiam,trackballX:t.trackballX,trackballY:t.trackballY,depthiness:t.depthiness};let e=JSON.stringify(i,null,4).replace(/"/g,"").replace(/{/g,"").replace(/}/g,"");navigator.clipboard.writeText(e)}let O;const we=(t,i)=>{const e=D();if(e.lkgCanvas==null){console.warn("window placement called without a valid XR Session!");return}else t==!1?ye(e,O):(O==null&&(O=be()),e.lkgCanvas.style.position="fixed",e.lkgCanvas.style.bottom="0",e.lkgCanvas.style.left="0",e.lkgCanvas.width=e.calibration.screenW.value,e.lkgCanvas.height=e.calibration.screenH.value,document.body.appendChild(O),"getScreenDetails"in window?ge(e.lkgCanvas,e,i):ie(e,e.lkgCanvas,i))};async function ge(t,i,e){const s=(await window.getScreenDetails()).screens.filter(o=>o.label.includes("LKG"))[0];if(s===void 0){console.log("no Looking Glass monitor detected - manually opening popup window"),ie(i,t,e);return}else{const o=[`left=${s.left}`,`top=${s.top}`,`width=${s.width}`,`height=${s.height}`,"menubar=no","toolbar=no","location=no","status=no","resizable=yes","scrollbars=no","fullscreenEnabled=true"].join(",");i.popup=window.open("","new",o),i.popup&&(i.popup.document.body.style.background="black",i.popup.document.body.style.transform="1.0",se(i),i.popup.document.body.appendChild(t),console.assert(e),i.popup.onbeforeunload=e)}}function ie(t,i,e){t.popup=window.open("",void 0,"width=640,height=360"),t.popup&&(t.popup.document.title="Looking Glass Window (fullscreen me on Looking Glass!)",t.popup.document.body.style.background="black",t.popup.document.body.style.transform="1.0",se(t),t.popup.document.body.appendChild(i),console.assert(e),t.popup.onbeforeunload=e)}function ye(t,i){var e;(e=i.parentElement)==null||e.removeChild(i),t.popup&&(t.popup.onbeforeunload=null,t.popup.close(),t.popup=null)}function se(t){t.popup&&t.popup.document.addEventListener("keydown",i=>{i.ctrlKey&&(i.key==="="||i.key==="-"||i.key==="+")&&i.preventDefault()})}const G=Symbol("LookingGlassXRWebGLLayer");class Ee extends fe.default{constructor(i,e,n){super(i,e,n);const s=D();s.appCanvas=e.canvas,s.lkgCanvas=document.createElement("canvas"),s.lkgCanvas.tabIndex=0;const o=s.lkgCanvas.getContext("2d",{alpha:!1});s.lkgCanvas.addEventListener("dblclick",function(){this.requestFullscreen()});const u=this[Q.PRIVATE].config,x=e.createTexture();let c,v;const f=e.createFramebuffer(),F=e.enable.bind(e),y=e.disable.bind(e),C=e.getExtension("OES_vertex_array_object"),k=34229,T=C?C.bindVertexArrayOES.bind(C):e.bindVertexArray.bind(e),d=()=>{const M=e.getParameter(e.TEXTURE_BINDING_2D);if(e.bindTexture(e.TEXTURE_2D,x),e.texImage2D(e.TEXTURE_2D,0,e.RGBA,s.framebufferWidth,s.framebufferHeight,0,e.RGBA,e.UNSIGNED_BYTE,null),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_MIN_FILTER,e.LINEAR),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_MAG_FILTER,e.LINEAR),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_BASE_LEVEL,0),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_MAX_LEVEL,0),e.bindTexture(e.TEXTURE_2D,M),c){const A=e.getParameter(e.RENDERBUFFER_BINDING);e.bindRenderbuffer(e.RENDERBUFFER,c),e.renderbufferStorage(e.RENDERBUFFER,v.format,s.framebufferWidth,s.framebufferHeight),e.bindRenderbuffer(e.RENDERBUFFER,A)}};(u.depth||u.stencil)&&(u.depth&&u.stencil?v={format:e.DEPTH_STENCIL,attachment:e.DEPTH_STENCIL_ATTACHMENT}:u.depth?v={format:e.DEPTH_COMPONENT16,attachment:e.DEPTH_ATTACHMENT}:u.stencil&&(v={format:e.STENCIL_INDEX8,attachment:e.STENCIL_ATTACHMENT}),c=e.createRenderbuffer()),d(),s.addEventListener("on-config-changed",d);const a=e.getParameter(e.FRAMEBUFFER_BINDING);e.bindFramebuffer(e.FRAMEBUFFER,f),e.framebufferTexture2D(e.FRAMEBUFFER,e.COLOR_ATTACHMENT0,e.TEXTURE_2D,x,0),(u.depth||u.stencil)&&e.framebufferRenderbuffer(e.FRAMEBUFFER,v.attachment,e.RENDERBUFFER,c),e.bindFramebuffer(e.FRAMEBUFFER,a);const r=e.createProgram();if(!r)return;const l=e.createShader(e.VERTEX_SHADER);if(!l)return;e.attachShader(r,l);const h=e.createShader(e.FRAGMENT_SHADER);if(!h)return;e.attachShader(r,h);{const M=`#version 300 es
			in vec2 a_position;
			out vec2 v_texcoord;
			void main() {
			  gl_Position = vec4(a_position * 2.0 - 1.0, 0.0, 1.0);
			  v_texcoord = a_position;
			}
		  `;e.shaderSource(l,M),e.compileShader(l),e.getShaderParameter(l,e.COMPILE_STATUS)||console.warn(e.getShaderInfoLog(l))}let m,R,S;const L=()=>{const M=J.Shader(s);if(M===m||(m=M,!h))return;if(e.shaderSource(h,M),e.compileShader(h),!e.getShaderParameter(h,e.COMPILE_STATUS)){console.warn(e.getShaderInfoLog(h));return}if(!r)return;if(e.linkProgram(r),!e.getProgramParameter(r,e.LINK_STATUS)){console.warn(e.getProgramInfoLog(r));return}R=e.getAttribLocation(r,"a_position"),S=e.getUniformLocation(r,"u_viewType");const A=e.getUniformLocation(r,"u_texture"),U=e.getUniformLocation(r,"subpixelData"),$=e.getParameter(e.CURRENT_PROGRAM);e.useProgram(r),e.uniform1i(A,0),e.uniform1fv(U,s.subpixelCells),e.useProgram($)};s.addEventListener("on-config-changed",L);const w=C?C.createVertexArrayOES():e.createVertexArray(),H=e.createBuffer(),q=e.getParameter(e.ARRAY_BUFFER_BINDING),V=e.getParameter(k);T(w),e.bindBuffer(e.ARRAY_BUFFER,H),e.bufferData(e.ARRAY_BUFFER,new Float32Array([0,0,1,0,0,1,0,1,1,0,1,1]),e.STATIC_DRAW),e.enableVertexAttribArray(R),e.vertexAttribPointer(R,2,e.FLOAT,!1,0,0),T(V),e.bindBuffer(e.ARRAY_BUFFER,q);const E=()=>{console.assert(this[G].LookingGlassEnabled),e.bindFramebuffer(e.FRAMEBUFFER,f);const M=e.getParameter(e.COLOR_CLEAR_VALUE),A=e.getParameter(e.DEPTH_CLEAR_VALUE),U=e.getParameter(e.STENCIL_CLEAR_VALUE);e.clearColor(0,0,0,0),e.clearDepth(1),e.clearStencil(0),e.clear(e.DEPTH_BUFFER_BIT|e.COLOR_BUFFER_BIT|e.STENCIL_BUFFER_BIT),e.clearColor(M[0],M[1],M[2],M[3]),e.clearDepth(A),e.clearStencil(U)},p=e.canvas;let K,N;const ke=()=>{if(!this[G].LookingGlassEnabled)return;(p.width!==s.calibration.screenW.value||p.height!==s.calibration.screenH.value)&&s.capturing===!1?(K=p.width,N=p.height,p.width=s.calibration.screenW.value,p.height=s.calibration.screenH.value):s.capturing===!0&&(K=p.width,N=p.height,p.width=s.framebufferWidth,p.height=s.framebufferHeight);const M=e.getParameter(k),A=e.getParameter(e.CULL_FACE),U=e.getParameter(e.BLEND),$=e.getParameter(e.DEPTH_TEST),Se=e.getParameter(e.STENCIL_TEST),Me=e.getParameter(e.SCISSOR_TEST),Pe=e.getParameter(e.VIEWPORT),De=e.getParameter(e.FRAMEBUFFER_BINDING),Ge=e.getParameter(e.RENDERBUFFER_BINDING),Fe=e.getParameter(e.CURRENT_PROGRAM),We=e.getParameter(e.ACTIVE_TEXTURE);{const Ae=e.getParameter(e.TEXTURE_BINDING_2D);e.bindFramebuffer(e.FRAMEBUFFER,null),e.useProgram(r),T(w),e.activeTexture(e.TEXTURE0),e.bindTexture(e.TEXTURE_2D,x),e.disable(e.BLEND),e.disable(e.CULL_FACE),e.disable(e.DEPTH_TEST),e.disable(e.STENCIL_TEST),e.viewport(0,0,e.drawingBufferWidth,e.drawingBufferHeight),e.uniform1i(S,0),e.drawArrays(e.TRIANGLES,0,6),o==null||o.clearRect(0,0,s.calibration.screenW.value,s.calibration.screenH.value),o==null||o.drawImage(p,0,0),s.inlineView!==0&&(e.uniform1i(S,s.inlineView),e.drawArrays(e.TRIANGLES,0,6)),e.bindTexture(e.TEXTURE_2D,Ae)}e.activeTexture(We),e.useProgram(Fe),e.bindRenderbuffer(e.RENDERBUFFER,Ge),e.bindFramebuffer(e.FRAMEBUFFER,De),e.viewport(...Pe),(Me?F:y)(e.SCISSOR_TEST),(Se?F:y)(e.STENCIL_TEST),($?F:y)(e.DEPTH_TEST),(U?F:y)(e.BLEND),(A?F:y)(e.CULL_FACE),T(M)};this[G]={LookingGlassEnabled:!1,framebuffer:f,clearFramebuffer:E,blitTextureToDefaultFramebufferIfNeeded:ke,moveCanvasToWindow:we,restoreOriginalCanvasDimensions:()=>{K&&N&&(p.width=K,p.height=N,K=N=void 0)}}}get framebuffer(){return this[G].LookingGlassEnabled?this[G].framebuffer:null}get framebufferWidth(){return D().framebufferWidth}get framebufferHeight(){return D().framebufferHeight}}const I=class extends he.default{constructor(i){super(i),this.sessions=new Map,this.viewSpaces=[],this.basePoseMatrix=g.mat4.create(),this.inlineProjectionMatrix=g.mat4.create(),this.inlineInverseViewMatrix=g.mat4.create(),this.LookingGlassProjectionMatrices=[],this.LookingGlassInverseViewMatrices=[],this.captureScreenshot=!1,this.screenshotCallback=null,I.instance||(I.instance=this)}static getInstance(){return I.instance}onBaseLayerSet(i,e){const n=this.sessions.get(i);n.baseLayer=e;const s=D(),o=e[G];o.LookingGlassEnabled=n.immersive,n.immersive&&(s.XRSession=this.sessions.get(i),s.popup==null?o.moveCanvasToWindow(!0,()=>{this.endSession(i)}):console.warn("attempted to assign baselayer twice?"))}isSessionSupported(i){return i==="inline"||i==="immersive-vr"}isFeatureSupported(i){switch(i){case"viewer":return!0;case"local":return!0;case"local-floor":return!0;case"bounded-floor":return!1;case"unbounded":return!1;default:return console.warn("LookingGlassXRDevice.isFeatureSupported: feature not understood:",i),!1}}async requestSession(i,e){if(!this.isSessionSupported(i))return Promise.reject();const n=i!=="inline",s=new Re(i,e),o=D();return this.sessions.set(s.id,s),n&&(this.dispatchEvent("@@webxr-polyfill/vr-present-start",s.id),window.addEventListener("unload",()=>{o.popup&&o.popup.close(),o.popup=null})),Promise.resolve(s.id)}requestAnimationFrame(i){return this.global.requestAnimationFrame(i)}cancelAnimationFrame(i){this.global.cancelAnimationFrame(i)}onFrameStart(i,e){const n=this.sessions.get(i),s=D();if(n.immersive){const o=Math.tan(.5*s.fovy),u=.5*s.targetDiam/o,x=u-s.targetDiam,c=this.basePoseMatrix;g.mat4.fromTranslation(c,[s.targetX,s.targetY,s.targetZ]),g.mat4.rotate(c,c,s.trackballX,[0,1,0]),g.mat4.rotate(c,c,-s.trackballY,[1,0,0]),g.mat4.translate(c,c,[0,0,u]);for(let v=0;v<s.numViews;++v){const f=(v+.5)/s.numViews-.5,F=Math.tan(s.viewCone*f),y=u*F,C=this.LookingGlassInverseViewMatrices[v]=this.LookingGlassInverseViewMatrices[v]||g.mat4.create();g.mat4.translate(C,c,[y,0,0]),g.mat4.invert(C,C);const k=Math.max(x+e.depthNear,.01),T=x+e.depthFar,d=k*o,a=d,r=-d,l=k*-F,h=s.aspect*d,m=l+h,R=l-h,S=this.LookingGlassProjectionMatrices[v]=this.LookingGlassProjectionMatrices[v]||g.mat4.create();g.mat4.set(S,2*k/(m-R),0,0,0,0,2*k/(a-r),0,0,(m+R)/(m-R),(a+r)/(a-r),-(T+k)/(T-k),-1,0,0,-2*T*k/(T-k),0)}}else{const o=n.baseLayer.context,u=o.drawingBufferWidth/o.drawingBufferHeight;g.mat4.perspective(this.inlineProjectionMatrix,e.inlineVerticalFieldOfView,u,e.depthNear,e.depthFar),g.mat4.fromTranslation(this.basePoseMatrix,[0,Y,0]),g.mat4.invert(this.inlineInverseViewMatrix,this.basePoseMatrix),n.baseLayer[G].clearFramebuffer()}}onFrameEnd(i){this.sessions.get(i).baseLayer[G].blitTextureToDefaultFramebufferIfNeeded(),this.captureScreenshot&&this.screenshotCallback&&(this.screenshotCallback(),this.captureScreenshot=!1)}async requestFrameOfReferenceTransform(i,e){const n=g.mat4.create();switch(i){case"viewer":case"local":return g.mat4.fromTranslation(n,[0,-Y,0]),n;case"local-floor":return n;default:throw new Error("XRReferenceSpaceType not understood")}}endSession(i){const e=this.sessions.get(i);e.immersive&&e.baseLayer&&(e.baseLayer[G].moveCanvasToWindow(!1),e.baseLayer[G].LookingGlassEnabled=!1,e.baseLayer[G].restoreOriginalCanvasDimensions(),this.dispatchEvent("@@webxr-polyfill/vr-present-end",i)),e.ended=!0}doesSessionSupportReferenceSpace(i,e){const n=this.sessions.get(i);return n.ended?!1:n.enabledFeatures.has(e)}getViewSpaces(i){if(i==="immersive-vr"){const e=D();for(let n=this.viewSpaces.length;n<e.numViews;++n)this.viewSpaces[n]=new Le(n);return this.viewSpaces.length=e.numViews,this.viewSpaces}}getViewport(i,e,n,s,o){if(o===void 0){const x=this.sessions.get(i).baseLayer.context;s.x=0,s.y=0,s.width=x.drawingBufferWidth,s.height=x.drawingBufferHeight}else{const u=D(),x=o%u.quiltWidth,c=Math.floor(o/u.quiltWidth);s.x=u.framebufferWidth/u.quiltWidth*x,s.y=u.framebufferHeight/u.quiltHeight*c,s.width=u.framebufferWidth/u.quiltWidth,s.height=u.framebufferHeight/u.quiltHeight}return!0}getProjectionMatrix(i,e){return e===void 0?this.inlineProjectionMatrix:this.LookingGlassProjectionMatrices[e]||g.mat4.create()}getBasePoseMatrix(){return this.basePoseMatrix}getBaseViewMatrix(){return this.inlineInverseViewMatrix}_getViewMatrixByIndex(i){return this.LookingGlassInverseViewMatrices[i]=this.LookingGlassInverseViewMatrices[i]||g.mat4.create()}getInputSources(){return[]}getInputPose(i,e,n){return null}onWindowResize(){}};let B=I;_(B,"instance",null);let Ce=0;class Re{constructor(i,e){_(this,"mode");_(this,"immersive");_(this,"id");_(this,"baseLayer");_(this,"inlineVerticalFieldOfView");_(this,"ended");_(this,"enabledFeatures");this.mode=i,this.immersive=i==="immersive-vr"||i==="immersive-ar",this.id=++Ce,this.baseLayer=null,this.inlineVerticalFieldOfView=Math.PI*.5,this.ended=!1,this.enabledFeatures=e}}class Le extends de.default{constructor(e){super();_(this,"viewIndex");this.viewIndex=e}get eye(){return"none"}_onPoseUpdate(e){this._inverseBaseMatrix=e._getViewMatrixByIndex(this.viewIndex)}}class Z extends ce.default{constructor(e){super();_(this,"vrButton");_(this,"device");_(this,"isPresenting",!1);te(e),this.loadPolyfill()}static async init(e){new Z(e)}async loadPolyfill(){this.overrideDefaultVRButton(),console.warn('Looking Glass WebXR "polyfill" overriding native WebXR API.');for(const e in ee.default)this.global[e]=ee.default[e];this.global.XRWebGLLayer=Ee,this.injected=!0,this.device=new B(this.global),this.xr=new le.default(Promise.resolve(this.device)),Object.defineProperty(this.global.navigator,"xr",{value:this.xr,configurable:!0})}async overrideDefaultVRButton(){this.vrButton=await _e("VRButton"),this.vrButton&&this.device?(this.device.addEventListener("@@webxr-polyfill/vr-present-start",()=>{this.isPresenting=!0,this.updateVRButtonUI()}),this.device.addEventListener("@@webxr-polyfill/vr-present-end",()=>{this.isPresenting=!1,this.updateVRButtonUI()}),this.vrButton.addEventListener("click",e=>{this.updateVRButtonUI()}),this.updateVRButtonUI()):console.warn("Unable to find VRButton")}async updateVRButtonUI(){if(this.vrButton){await xe(100),this.isPresenting?this.vrButton.innerHTML="EXIT LOOKING GLASS":this.vrButton.innerHTML="ENTER LOOKING GLASS";const e=220;this.vrButton.style.width=`${e}px`,this.vrButton.style.left=`calc(50% - ${e/2}px)`}}update(e){te(e)}}async function _e(t){return new Promise(i=>{const e=new MutationObserver(function(n){n.forEach(function(s){s.addedNodes.forEach(function(o){const u=o;u.id===t&&(i(u),e.disconnect())})})});e.observe(document.body,{subtree:!1,childList:!0}),setTimeout(()=>{e.disconnect(),i(null)},5e3)})}function xe(t){return new Promise(i=>setTimeout(i,t))}const Te=D();b.LookingGlassConfig=Te,b.LookingGlassWebXRPolyfill=Z,Object.defineProperties(b,{__esModule:{value:!0},[Symbol.toStringTag]:{value:"Module"}})});