videojs-vr
Version:
A plugin to add 360 and VR video support to video.js.
176 lines • 719 kB
JavaScript
/*! @name videojs-vr @version 1.7.1 @license Apache-2.0 */
!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t(require("global/window"),require("global/document"),require("video.js")):"function"==typeof define&&define.amd?define(["global/window","global/document","video.js"],t):(e=e||self).videojsVr=t(e.window,e.document,e.videojs)}(this,function(e,t,i){"use strict";e=e&&e.hasOwnProperty("default")?e.default:e,t=t&&t.hasOwnProperty("default")?t.default:t,i=i&&i.hasOwnProperty("default")?i.default:i;var n=function(e){if(void 0===e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return e};var r=function(e,t){e.prototype=Object.create(t.prototype),e.prototype.constructor=e,e.__proto__=t},a="undefined"!=typeof globalThis?globalThis:"undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:{};var o,s=function(e,t){return e(t={exports:{}},t.exports),t.exports}(function(e,t){
/**
* @license
* webvr-polyfill
* Copyright (c) 2015-2017 Google
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @license
* cardboard-vr-display
* Copyright (c) 2015-2017 Google
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @license
* webvr-polyfill-dpdb
* Copyright (c) 2017 Google
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @license
* wglu-preserve-state
* Copyright (c) 2016, Brandon Jones.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
/**
* @license
* nosleep.js
* Copyright (c) 2017, Rich Tibbett
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
e.exports=function(){var e,t="undefined"!=typeof window?window:void 0!==a?a:"undefined"!=typeof self?self:{},i=function(){return/Android/i.test(navigator.userAgent)||/iPhone|iPad|iPod/i.test(navigator.userAgent)},n=function(e,t){for(var i=0,n=e.length;i<n;i++)t[i]=e[i]},r=function(e,t){for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);return e},o=(e=function(e,t){return e(t={exports:{}},t.exports),t.exports}(function(e,i){
/**
* @license
* cardboard-vr-display
* Copyright (c) 2015-2017 Google
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @license
* gl-preserve-state
* Copyright (c) 2016, Brandon Jones.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
/**
* @license
* webvr-polyfill-dpdb
* Copyright (c) 2015-2017 Google
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @license
* nosleep.js
* Copyright (c) 2017, Rich Tibbett
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
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i=t[0],n=t[1],r=t[2],a=t[3],o=t[4],s=t[5],c=t[6],u=t[7],h=t[8],l=t[9],d=t[10],p=t[11],f=t[12],g=t[13],m=t[14],M=t[15],y=i*s-n*o,v=i*c-r*o,A=i*u-a*o,w=n*c-r*s,x=n*u-a*s,E=r*u-a*c,T=h*g-l*f,N=h*m-d*f,D=h*M-p*f,L=l*m-d*g,b=l*M-p*g,I=d*M-p*m,_=y*I-v*b+A*L+w*D-x*N+E*T;_&&(_=1/_,e[0]=(s*I-c*b+u*L)*_,e[1]=(r*b-n*I-a*L)*_,e[2]=(g*E-m*x+M*w)*_,e[3]=(d*x-l*E-p*w)*_,e[4]=(c*D-o*I-u*N)*_,e[5]=(i*I-r*D+a*N)*_,e[6]=(m*A-f*E-M*v)*_,e[7]=(h*E-d*A+p*v)*_,e[8]=(o*b-s*D+u*T)*_,e[9]=(n*D-i*b-a*T)*_,e[10]=(f*x-g*A+M*y)*_,e[11]=(l*A-h*x-p*y)*_,e[12]=(s*N-o*L-c*T)*_,e[13]=(i*L-n*N+r*T)*_,e[14]=(g*v-f*w-m*y)*_,e[15]=(h*w-l*v+d*y)*_)}(a,a)}return function(e,t,i){return!(!e||!t||(e.pose=t,e.timestamp=t.timestamp,r(e.leftProjectionMatrix,e.leftViewMatrix,t,i._getFieldOfView("left"),i._getEyeOffset("left"),i),r(e.rightProjectionMatrix,e.rightViewMatrix,t,i._getFieldOfView("right"),i._getEyeOffset("right"),i),0))}}(),T=function(e){var t,i=e.indexOf("://");t=-1!==i?i+3:0;var 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e.FRAMEBUFFER_BINDING:e.bindFramebuffer(e.FRAMEBUFFER,s);break;case e.RENDERBUFFER_BINDING:e.bindRenderbuffer(e.RENDERBUFFER,s);break;case e.TEXTURE_BINDING_2D:if((c=t[++a])<e.TEXTURE0||c>e.TEXTURE31)break;e.activeTexture(c),e.bindTexture(e.TEXTURE_2D,s);break;case e.TEXTURE_BINDING_CUBE_MAP:var c;if((c=t[++a])<e.TEXTURE0||c>e.TEXTURE31)break;e.activeTexture(c),e.bindTexture(e.TEXTURE_CUBE_MAP,s);break;case e.VIEWPORT:e.viewport(s[0],s[1],s[2],s[3]);break;case e.BLEND:case e.CULL_FACE:case e.DEPTH_TEST:case e.SCISSOR_TEST:case e.STENCIL_TEST:s?e.enable(o):e.disable(o);break;default:console.log("No GL restore behavior for 0x"+o.toString(16))}r&&e.activeTexture(r)}}else i(e)},b=["attribute vec2 position;","attribute vec3 texCoord;","varying vec2 vTexCoord;","uniform vec4 viewportOffsetScale[2];","void main() {"," vec4 viewport = viewportOffsetScale[int(texCoord.z)];"," vTexCoord = (texCoord.xy * viewport.zw) + viewport.xy;"," gl_Position = vec4( position, 1.0, 1.0 );","}"].join("\n"),I=["precision mediump float;","uniform sampler2D diffuse;","varying vec2 vTexCoord;","void main() {"," gl_FragColor = texture2D(diffuse, vTexCoord);","}"].join("\n");function _(e,t,i,n){this.gl=e,this.cardboardUI=t,this.bufferScale=i,this.dirtySubmitFrameBindings=n,this.ctxAttribs=e.getContextAttributes(),this.meshWidth=20,this.meshHeight=20,this.bufferWidth=e.drawingBufferWidth,this.bufferHeight=e.drawingBufferHeight,this.realBindFramebuffer=e.bindFramebuffer,this.realEnable=e.enable,this.realDisable=e.disable,this.realColorMask=e.colorMask,this.realClearColor=e.clearColor,this.realViewport=e.viewport,c()||(this.realCanvasWidth=Object.getOwnPropertyDescriptor(e.canvas.__proto__,"width"),this.realCanvasHeight=Object.getOwnPropertyDescriptor(e.canvas.__proto__,"height")),this.isPatched=!1,this.lastBoundFramebuffer=null,this.cullFace=!1,this.depthTest=!1,this.blend=!1,this.scissorTest=!1,this.stencilTest=!1,this.viewport=[0,0,0,0],this.colorMask=[!0,!0,!0,!0],this.clearColor=[0,0,0,0],this.attribs={position:0,texCoord:1},this.program=y(e,b,I,this.attribs),this.uniforms=v(e,this.program),this.viewportOffsetScale=new Float32Array(8),this.setTextureBounds(),this.vertexBuffer=e.createBuffer(),this.indexBuffer=e.createBuffer(),this.indexCount=0,this.renderTarget=e.createTexture(),this.framebuffer=e.createFramebuffer(),this.depthStencilBuffer=null,this.depthBuffer=null,this.stencilBuffer=null,this.ctxAttribs.depth&&this.ctxAttribs.stencil?this.depthStencilBuffer=e.createRenderbuffer():this.ctxAttribs.depth?this.depthBuffer=e.createRenderbuffer():this.ctxAttribs.stencil&&(this.stencilBuffer=e.createRenderbuffer()),this.patch(),this.onResize()}_.prototype.destroy=function(){var e=this.gl;this.unpatch(),e.deleteProgram(this.program),e.deleteBuffer(this.vertexBuffer),e.deleteBuffer(this.indexBuffer),e.deleteTexture(this.renderTarget),e.deleteFramebuffer(this.framebuffer),this.depthStencilBuffer&&e.deleteRenderbuffer(this.depthStencilBuffer),this.depthBuffer&&e.deleteRenderbuffer(this.depthBuffer),this.stencilBuffer&&e.deleteRenderbuffer(this.stencilBuffer),this.cardboardUI&&this.cardboardUI.destroy()},_.prototype.onResize=function(){var e=this.gl,t=this,i=[e.RENDERBUFFER_BINDING,e.TEXTURE_BINDING_2D,e.TEXTURE0];L(e,i,function(e){t.realBindFramebuffer.call(e,e.FRAMEBUFFER,null),t.scissorTest&&t.realDisable.call(e,e.SCISSOR_TEST),t.realColorMask.call(e,!0,!0,!0,!0),t.realViewport.call(e,0,0,e.drawingBufferWidth,e.drawingBufferHeight),t.realClearColor.call(e,0,0,0,1),e.clear(e.COLOR_BUFFER_BIT),t.realBindFramebuffer.call(e,e.FRAMEBUFFER,t.framebuffer),e.bindTexture(e.TEXTURE_2D,t.renderTarget),e.texImage2D(e.TEXTURE_2D,0,t.ctxAttribs.alpha?e.RGBA:e.RGB,t.bufferWidth,t.bufferHeight,0,t.ctxAttribs.alpha?e.RGBA:e.RGB,e.UNSIGNED_BYTE,null),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_MAG_FILTER,e.LINEAR),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_MIN_FILTER,e.LINEAR),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_WRAP_S,e.CLAMP_TO_EDGE),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_WRAP_T,e.CLAMP_TO_EDGE),e.framebufferTexture2D(e.FRAMEBUFFER,e.COLOR_ATTACHMENT0,e.TEXTURE_2D,t.renderTarget,0),t.ctxAttribs.depth&&t.ctxAttribs.stencil?(e.bindRenderbuffer(e.RENDERBUFFER,t.depthStencilBuffer),e.renderbufferStorage(e.RENDERBUFFER,e.DEPTH_STENCIL,t.bufferWidth,t.bufferHeight),e.framebufferRenderbuffer(e.FRAMEBUFFER,e.DEPTH_STENCIL_ATTACHMENT,e.RENDERBUFFER,t.depthStencilBuffer)):t.ctxAttribs.depth?(e.bindRenderbuffer(e.RENDERBUFFER,t.depthBuffer),e.renderbufferStorage(e.RENDERBUFFER,e.DEPTH_COMPONENT16,t.bufferWidth,t.bufferHeight),e.framebufferRenderbuffer(e.FRAMEBUFFER,e.DEPTH_ATTACHMENT,e.RENDERBUFFER,t.depthBuffer)):t.ctxAttribs.stencil&&(e.bindRenderbuffer(e.RENDERBUFFER,t.stencilBuffer),e.renderbufferStorage(e.RENDERBUFFER,e.STENCIL_INDEX8,t.bufferWidth,t.bufferHeight),e.framebufferRenderbuffer(e.FRAMEBUFFER,e.STENCIL_ATTACHMENT,e.RENDERBUFFER,t.stencilBuffer)),!e.checkFramebufferStatus(e.FRAMEBUFFER)===e.FRAMEBUFFER_COMPLETE&&console.error("Framebuffer incomplete!"),t.realBindFramebuffer.call(e,e.FRAMEBUFFER,t.lastBoundFramebuffer),t.scissorTest&&t.realEnable.call(e,e.SCISSOR_TEST),t.realColorMask.apply(e,t.colorMask),t.realViewport.apply(e,t.viewport),t.realClearColor.apply(e,t.clearColor)}),this.cardboardUI&&this.cardboardUI.onResize()},_.prototype.patch=function(){if(!this.isPatched){var e=this,t=this.gl.canvas,i=this.gl;c()||(t.width=g()*this.bufferScale,t.height=m()*this.bufferScale,Object.defineProperty(t,"width",{configurable:!0,enumerable:!0,get:function(){return e.bufferWidth},set:function(i){e.bufferWidth=i,e.realCanvasWidth.set.call(t,i),e.onResize()}}),Object.defineProperty(t,"height",{configurable:!0,enumerable:!0,get:function(){return e.bufferHeight},set:function(i){e.bufferHeight=i,e.realCanvasHeight.set.call(t,i),e.onResize()}})),this.lastBoundFramebuffer=i.getParameter(i.FRAMEBUFFER_BINDING),null==this.lastBoundFramebuffer&&(this.lastBoundFramebuffer=this.framebuffer,this.gl.bindFramebuffer(i.FRAMEBUFFER,this.framebuffer)),this.gl.bindFramebuffer=function(t,n){e.lastBoundFramebuffer=n||e.framebuffer,e.realBindFramebuffer.call(i,t,e.lastBoundFramebuffer)},this.cullFace=i.getParameter(i.CULL_FACE),this.depthTest=i.getParameter(i.DEPTH_TEST),this.blend=i.getParameter(i.BLEND),this.scissorTest=i.getParameter(i.SCISSOR_TEST),this.stencilTest=i.getParameter(i.STENCIL_TEST),i.enable=function(t){switch(t){case i.CULL_FACE:e.cullFace=!0;break;case i.DEPTH_TEST:e.depthTest=!0;break;case i.BLEND:e.blend=!0;break;case i.SCISSOR_TEST:e.scissorTest=!0;break;case i.STENCIL_TEST:e.stencilTest=!0}e.realEnable.call(i,t)},i.disable=function(t){switch(t){case i.CULL_FACE:e.cullFace=!1;break;case i.DEPTH_TEST:e.depthTest=!1;break;case i.BLEND:e.blend=!1;break;case i.SCISSOR_TEST:e.scissorTest=!1;break;case i.STENCIL_TEST:e.stencilTest=!1}e.realDisable.call(i,t)},this.colorMask=i.getParameter(i.COLOR_WRITEMASK),i.colorMask=function(t,n,r,a){e.colorMask[0]=t,e.colorMask[1]=n,e.colorMask[2]=r,e.colorMask[3]=a,e.realColorMask.call(i,t,n,r,a)},this.clearColor=i.getParameter(i.COLOR_CLEAR_VALUE),i.clearColor=function(t,n,r,a){e.clearColor[0]=t,e.clearColor[1]=n,e.clearColor[2]=r,e.clearColor[3]=a,e.realClearColor.call(i,t,n,r,a)},this.viewport=i.getParameter(i.VIEWPORT),i.viewport=function(t,n,r,a){e.viewport[0]=t,e.viewport[1]=n,e.viewport[2]=r,e.viewport[3]=a,e.realViewport.call(i,t,n,r,a)},this.isPatched=!0,x(t)}},_.prototype.unpatch=function(){if(this.isPatched){var e=this.gl,t=this.gl.canvas;c()||(Object.defineProperty(t,"width",this.realCanvasWidth),Object.defineProperty(t,"height",this.realCanvasHeight)),t.width=this.bufferWidth,t.height=this.bufferHeight,e.bindFramebuffer=this.realBindFramebuffer,e.enable=this.realEnable,e.disable=this.realDisable,e.colorMask=this.realColorMask,e.clearColor=this.realClearColor,e.viewport=this.realViewport,this.lastBoundFramebuffer==this.framebuffer&&e.bindFramebuffer(e.FRAMEBUFFER,null),this.isPatched=!1,setTimeout(function(){x(t)},1)}},_.prototype.setTextureBounds=function(e,t){e||(e=[0,0,.5,1]),t||(t=[.5,0,.5,1]),this.viewportOffsetScale[0]=e[0],this.viewportOffsetScale[1]=e[1],this.viewportOffsetScale[2]=e[2],this.viewportOffsetScale[3]=e[3],this.viewportOffsetScale[4]=t[0],this.viewportOffsetScale[5]=t[1],this.viewportOffsetScale[6]=t[2],this.viewportOffsetScale[7]=t[3]},_.prototype.submitFrame=function(){var e=this.gl,t=this,i=[];if(this.dirtySubmitFrameBindings||i.push(e.CURRENT_PROGRAM,e.ARRAY_BUFFER_BINDING,e.ELEMENT_ARRAY_BUFFER_BINDING,e.TEXTURE_BINDING_2D,e.TEXTURE0),L(e,i,function(e){t.realBindFramebuffer.call(e,e.FRAMEBUFFER,null),t.cullFace&&t.realDisable.call(e,e.CULL_FACE),t.depthTest&&t.realDisable.call(e,e.DEPTH_TEST),t.blend&&t.realDisable.call(e,e.BLEND),t.scissorTest&&t.realDisable.call(e,e.SCISSOR_TEST),t.stencilTest&&t.realDisable.call(e,e.STENCIL_TEST),t.realColorMask.call(e,!0,!0,!0,!0),t.realViewport.call(e,0,0,e.drawingBufferWidth,e.drawingBufferHeight),(t.ctxAttribs.alpha||c())&&(t.realClearColor.call(e,0,0,0,1),e.clear(e.COLOR_BUFFER_BIT)),e.useProgram(t.program),e.bindBuffer(e.ELEMENT_ARRAY_BUFFER,t.indexBuffer),e.bindBuffer(e.ARRAY_BUFFER,t.vertexBuffer),e.enableVertexAttribArray(t.attribs.position),e.enableVertexAttribArray(t.attribs.texCoord),e.vertexAttribPointer(t.attribs.position,2,e.FLOAT,!1,20,0),e.vertexAttribPointer(t.attribs.texCoord,3,e.FLOAT,!1,20,8),e.activeTexture(e.TEXTURE0),e.uniform1i(t.uniforms.diffuse,0),e.bindTexture(e.TEXTURE_2D,t.renderTarget),e.uniform4fv(t.uniforms.viewportOffsetScale,t.viewportOffsetScale),e.drawElements(e.TRIANGLES,t.indexCount,e.UNSIGNED_SHORT,0),t.cardboardUI&&t.cardboardUI.renderNoState(),t.realBindFramebuffer.call(t.gl,e.FRAMEBUFFER,t.framebuffer),t.ctxAttribs.preserveDrawingBuffer||(t.realClearColor.call(e,0,0,0,0),e.clear(e.COLOR_BUFFER_BIT)),t.dirtySubmitFrameBindings||t.realBindFramebuffer.call(e,e.FRAMEBUFFER,t.lastBoundFramebuffer),t.cullFace&&t.realEnable.call(e,e.CULL_FACE),t.depthTest&&t.realEnable.call(e,e.DEPTH_TEST),t.blend&&t.realEnable.call(e,e.BLEND),t.scissorTest&&t.realEnable.call(e,e.SCISSOR_TEST),t.stencilTest&&t.realEnable.call(e,e.STENCIL_TEST),t.realColorMask.apply(e,t.colorMask),t.realViewport.apply(e,t.viewport),!t.ctxAttribs.alpha&&t.ctxAttribs.preserveDrawingBuffer||t.realClearColor.apply(e,t.clearColor)}),c()){var n=e.canvas;n.width==t.bufferWidth&&n.height==t.bufferHeight||(t.bufferWidth=n.width,t.bufferHeight=n.height,t.onResize())}},_.prototype.updateDeviceInfo=function(e){var t=this.gl,i=this,n=[t.ARRAY_BUFFER_BINDING,t.ELEMENT_ARRAY_BUFFER_BINDING];L(t,n,function(t){var n=i.computeMeshVertices_(i.meshWidth,i.meshHeight,e);if(t.bindBuffer(t.ARRAY_BUFFER,i.vertexBuffer),t.bufferData(t.ARRAY_BUFFER,n,t.STATIC_DRAW),!i.indexCount){var r=i.computeMeshIndices_(i.meshWidth,i.meshHeight);t.bindBuffer(t.ELEMENT_ARRAY_BUFFER,i.indexBuffer),t.bufferData(t.ELEMENT_ARRAY_BUFFER,r,t.STATIC_DRAW),i.indexCount=r.length}})},_.prototype.computeMeshVertices_=function(e,t,i){for(var n=new Float32Array(2*e*t*5),r=i.getLeftEyeVisibleTanAngles(),a=i.getLeftEyeNoLensTanAngles(),o=i.getLeftEyeVisibleScreenRect(a),c=0,u=0;u<2;u++){for(var h=0;h<t;h++)for(var l=0;l<e;l++,c++){var d=l/(e-1),p=h/(t-1),f=d,g=p,m=s(r[0],r[2],d),M=s(r[3],r[1],p),y=Math.sqrt(m*m+M*M),v=i.distortion.distortInverse(y),A=M*v/y;d=(m*v/y-a[0])/(a[2]-a[0]),p=(A-a[3])/(a[1]-a[3]),d=2*(o.x+d*o.width-.5),p=2*(o.y+p*o.height-.5),n[5*c+0]=d,n[5*c+1]=p,n[5*c+2]=f,n[5*c+3]=g,n[5*c+4]=u}var w=r[2]-r[0];r[0]=-(w+r[0]),r[2]=w-r[2],w=a[2]-a[0],a[0]=-(w+a[0]),a[2]=w-a[2],o.x=1-(o.x+o.width)}return n},_.prototype.computeMeshIndices_=function(e,t){for(var i=new Uint16Array(2*(e-1)*(t-1)*6),n=e/2,r=t/2,a=0,o=0,s=0;s<2;s++)for(var c=0;c<t;c++)for(var u=0;u<e;u++,a++)0!=u&&0!=c&&(u<=n==c<=r?(i[o++]=a,i[o++]=a-e-1,i[o++]=a-e,i[o++]=a-e-1,i[o++]=a,i[o++]=a-1):(i[o++]=a-1,i[o++]=a-e,i[o++]=a,i[o++]=a-e,i[o++]=a-1,i[o++]=a-e-1));return i},_.prototype.getOwnPropertyDescriptor_=function(e,t){var i=Object.getOwnPropertyDescriptor(e,t);return void 0!==i.get&&void 0!==i.set||(i.configurable=!0,i.enumerable=!0,i.get=function(){return this.getAttribute(t)},i.set=function(e){this.setAttribute(t,e)}),i};var S=["attribute vec2 position;","uniform mat4 projectionMat;","void main() {"," gl_Position = projectionMat * vec4( position, -1.0, 1.0 );","}"].join("\n"),j=["precision mediump float;","uniform vec4 color;","void main() {"," gl_FragColor = color;","}"].join("\n"),C=Math.PI/180,O=.3125;function z(e){this.gl=e,this.attribs={position:0},this.program=y(e,S,j,this.attribs),this.uniforms=v(e,this.program),this.vertexBuffer=e.createBuffer(),this.gearOffset=0,this.gearVertexCount=0,this.arrowOffset=0,this.arrowVertexCount=0,this.projMat=new Float32Array(16),this.listener=null,this.onResize()}function R(e){this.coefficients=e}z.prototype.destroy=function(){var e=this.gl;this.listener&&e.canvas.removeEventListener("click",this.listener,!1),e.deleteProgram(this.program),e.deleteBuffer(this.vertexBuffer)},z.prototype.listen=function(e,t){var i=this.gl.canvas;this.listener=function(n){var r=i.clientWidth/2;n.clientX>r-42&&n.clientX<r+42&&n.clientY>i.clientHeight-42?e(n):n.clientX<42&&n.clientY<42&&t(n)},i.addEventListener("click",this.listener,!1)},z.prototype.onResize=function(){var e=this.gl,t=this,i=[e.ARRAY_BUFFER_BINDING];L(e,i,function(e){var i=[],n=e.drawingBufferWidth/2,r=Math.max(screen.width,screen.height)*window.devicePixelRatio,a=e.drawingBufferWidth/r*window.devicePixelRatio,o=4*a/2,s=42*a,c=28*a/2,u=14*a;function h(e,t){var r=(90-e)*C,a=Math.cos(r),o=Math.sin(r);i.push(O*a*c+n,O*o*c+c),i.push(t*a*c+n,t*o*c+c)}i.push(n-o,s),i.push(n-o,e.drawingBufferHeight),i.push(n+o,s),i.push(n+o,e.drawingBufferHeight),t.gearOffset=i.length/2;for(var l=0;l<=6;l++){var d=60*l;h(d,1),h(d+12,1),h(d+20,.75),h(d+40,.75),h(d+48,1)}function p(t,n){i.push(u+t,e.drawingBufferHeight-u-n)}t.gearVertexCount=i.length/2-t.gearOffset,t.arrowOffset=i.length/2;var f=o/Math.sin(45*C);p(0,c),p(c,0),p(c+f,f),p(f,c+f),p(f,c-f),p(0,c),p(c,2*c),p(c+f,2*c-f),p(f,c-f),p(0,c),p(f,c-o),p(28*a,c-o),p(f,c+o),p(28*a,c+o),t.arrowVertexCount=i.length/2-t.arrowOffset,e.bindBuffer(e.ARRAY_BUFFER,t.vertexBuffer),e.bufferData(e.ARRAY_BUFFER,new Float32Array(i),e.STATIC_DRAW)})},z.prototype.render=function(){var e=this.gl,t=this,i=[e.CULL_FACE,e.DEPTH_TEST,e.BLEND,e.SCISSOR_TEST,e.STENCIL_TEST,e.COLOR_WRITEMASK,e.VIEWPORT,e.CURRENT_PROGRAM,e.ARRAY_BUFFER_BINDING];L(e,i,function(e){e.disable(e.CULL_FACE),e.disable(e.DEPTH_TEST),e.disable(e.BLEND),e.disable(e.SCISSOR_TEST),e.disable(e.STENCIL_TEST),e.colorMask(!0,!0,!0,!0),e.viewport(0,0,e.drawingBufferWidth,e.drawingBufferHeight),t.renderNoState()})},z.prototype.renderNoState=function(){var e,t,i,n,r,a,o,s,c,u,h=this.gl;h.useProgram(this.program),h.bindBuffer(h.ARRAY_BUFFER,this.vertexBuffer),h.enableVertexAttribArray(this.attribs.position),h.vertexAttribPointer(this.attribs.position,2,h.FLOAT,!1,8,0),h.uniform4f(this.uniforms.color,1,1,1,1),e=this.projMat,t=0,i=h.drawingBufferWidth,n=0,r=h.drawingBufferHeight,s=1/(t-i),c=1/(n-r),u=1/((a=.1)-(o=1024)),e[0]=-2*s,e[1]=0,e[2]=0,e[3]=0,e[4]=0,e[5]=-2*c,e[6]=0,e[7]=0,e[8]=0,e[9]=0,e[10]=2*u,e[11]=0,e[12]=(t+i)*s,e[13]=(r+n)*c,e[14]=(o+a)*u,e[15]=1,h.uniformMatrix4fv(this.uniforms.projectionMat,!1,this.projMat),h.drawArrays(h.TRIANGLE_STRIP,0,4),h.drawArrays(h.TRIANGLE_STRIP,this.gearOffset,this.gearVertexCount),h.drawArrays(h.TRIANGLE_STRIP,this.arrowOffset,this.arrowVertexCount)},R.prototype.distortInverse=function(e){for(var t=0,i=1,n=e-this.distort(t);Math.abs(i-t)>1e-4;){var r=e-this.distort(i),a=i-r*((i-t)/(r-n));t=i,i=a,n=r}return i},R.prototype.distort=function(e){for(var t=e*e,i=0,n=0;n<this.coefficients.length;n++)i=t*(i+this.coefficients[n]);return(i+1)*e};var U=Math.PI/180,P=180/Math.PI,B=function(e,t,i){this.x=e||0,this.y=t||0,this.z=i||0};B.prototype={constructor:B,set:function(e,t,i){return this.x=e,this.y=t,this.z=i,this},copy:function(e){return this.x=e.x,this.y=e.y,this.z=e.z,this},length:function(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z)},normalize:function(){var e=this.length();if(0!==e){var t=1/e;this.multiplyScalar(t)}else this.x=0,this.y=0,this.z=0;return this},multiplyScalar:function(e){this.x*=e,this.y*=e,this.z*=e},applyQuaternion:function(e){var t=this.x,i=this.y,n=this.z,r=e.x,a=e.y,o=e.z,s=e.w,c=s*t+a*n-o*i,u=s*i+o*t-r*n,h=s*n+r*i-a*t,l=-r*t-a*i-o*n;return this.x=c*s+l*-r+u*-o-h*-a,this.y=u*s+l*-a+h*-r-c*-o,this.z=h*s+l*-o+c*-a-u*-r,this},dot:function(e){return this.x*e.x+this.y*e.y+this.z*e.z},crossVectors:function(e,t){var i=e.x,n=e.y,r=e.z,a=t.x,o=t.y,s=t.z;return this.x=n*s-r*o,this.y=r*a-i*s,this.z=i*o-n*a,this}};var k,F,G=function(e,t,i,n){this.x=e||0,this.y=t||0,this.z=i||0,this.w=void 0!==n?n:1};function Q(e){this.width=e.width||g(),this.height=e.height||m(),this.widthMeters=e.widthMeters,this.heightMeters=e.heightMeters,this.bevelMeters=e.bevelMeters}G.prototype={constructor:G,set:function(e,t,i,n){return this.x=e,this.y=t,this.z=i,this.w=n,this},copy:function(e){return this.x=e.x,this.y=e.y,this.z=e.z,this.w=e.w,this},setFromEulerXYZ:function(e,t,i){var n=Math.cos(e/2),r=Math.cos(t/2),a=Math.cos(i/2),o=Math.sin(e/2),s=Math.sin(t/2),c=Math.sin(i/2);return this.x=o*r*a+n*s*c,this.y=n*s*a-o*r*c,this.z=n*r*c+o*s*a,this.w=n*r*a-o*s*c,this},setFromEulerYXZ:function(e,t,i){var n=Math.cos(e/2),r=Math.cos(t/2),a=Math.cos(i/2),o=Math.sin(e/2),s=Math.sin(t/2),c=Math.sin(i/2);return this.x=o*r*a+n*s*c,this.y=n*s*a-o*r*c,this.z=n*r*c-o*s*a,this.w=n*r*a+o*s*c,this},setFromAxisAngle:function(e,t){var i=t/2,n=Math.sin(i);return this.x=e.x*n,this.y=e.y*n,this.z=e.z*n,this.w=Math.cos(i),this},multiply:function(e){return this.multiplyQuaternions(this,e)},multiplyQuaternions:function(e,t){var i=e.x,n=e.y,r=e.z,a=e.w,o=t.x,s=t.y,c=t.z,u=t.w;return this.x=i*u+a*o+n*c-r*s,this.y=n*u+a*s+r*o-i*c,this.z=r*u+a*c+i*s-n*o,this.w=a*u-i*o-n*s-r*c,this},inverse:function(){return this.x*=-1,this.y*=-1,this.z*=-1,this.normalize(),this},normalize:function(){var e=Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w);return 0===e?(this.x=0,this.y=0,this.z=0,this.w=1):(e=1/e,this.x=this.x*e,this.y=this.y*e,this.z=this.z*e,this.w=this.w*e),this},slerp:function(e,t){if(0===t)return this;if(1===t)return this.copy(e);var i=this.x,n=this.y,r=this.z,a=this.w,o=a*e.w+i*e.x+n*e.y+r*e.z;if(o<0?(this.w=-e.w,this.x=-e.x,this.y=-e.y,this.z=-e.z,o=-o):this.copy(e),o>=1)return this.w=a,this.x=i,this.y=n,this.z=r,this;var s=Math.acos(o),c=Math.sqrt(1-o*o);if(Math.abs(c)<.001)return this.w=.5*(a+this.w),this.x=.5*(i+this.x),this.y=.5*(n+this.y),this.z=.5*(r+this.z),this;var u=Math.sin((1-t)*s)/c,h=Math.sin(t*s)/c;return this.w=a*u+this.w*h,this.x=i*u+this.x*h,this.y=n*u+this.y*h,this.z=r*u+this.z*h,this},setFromUnitVectors:function(e,t){return void 0===k&&(k=new B),(F=e.dot(t)+1)<1e-6?(F=0,Math.abs(e.x)>Math.abs(e.z)?k.set(-e.y,e.x,0):k.set(0,-e.z,e.y)):k.crossVectors(e,t),this.x=k.x,this.y=k.y,this.z=k.z,this.w=F,this.normalize(),this}};var Y=new Q({widthMeters:.11,heightMeters:.062,bevelMeters:.004}),V=new Q({widthMeters:.1038,heightMeters:.0584,bevelMeters:.004}),H={CardboardV1:new X({id:"CardboardV1",label:"Cardboard I/O 2014",fov:40,interLensDistance:.06,baselineLensDistance:.035,screenLensDistance:.042,distortionCoefficients:[.441,.156],inverseCoefficients:[-.4410035,.42756155,-.4804439,.5460139,-.58821183,.5733938,-.48303202,.33299083,-.17573841,.0651772,-.01488963,.001559834]}),CardboardV2:new X({id:"CardboardV2",label:"Cardboard I/O 2015",fov:60,interLensDistance:.064,baselineLensDistance:.035,screenLensDistance:.039,distortionCoefficients:[.34,.55],inverseCoefficients:[-.33836704,-.18162185,.862655,-1.2462051,1.0560602,-.58208317,.21609078,-.05444823,.009177956,-.0009904169,6183535e-11,-16981803e-13]})};function W(e,t){this.viewer=H.CardboardV2,this.updateDeviceParams(e),this.distortion=new R(this.viewer.distortionCoefficients);for(var i=0;i<t.length;i++){var n=t[i];H[n.id]=new X(n)}}function X(e){this.id=e.id,this.label=e.label,this.fov=e.fov,this.interLensDistance=e.interLensDistance,this.baselineLensDistance=e.baselineLensDistance,this.screenLensDistance=e.screenLensDistance,this.distortionCoefficients=e.distortionCoefficients,this.inverseCoefficients=e.inverseCoefficients}W.prototype.updateDeviceParams=function(e){this.device=this.determineDevice_(e)||this.device},W.prototype.getDevice=function(){return this.device},W.prototype.setViewer=function(e){this.viewer=e,this.distortion=new R(this.viewer.distortionCoefficients)},W.prototype.determineDevice_=function(e){if(!e)return c()?(console.warn("Using fallback iOS device measurements."),V):(console.warn("Using fallback Android device measurements."),Y);var t=.0254/e.xdpi,i=.0254/e.ydpi;return new Q({widthMeters:t*g(),heightMeters:i*m(),bevelMeters:.001*e.bevelMm})},W.prototype.getDistortedFieldOfViewLeftEye=function(){var e=this.viewer,t=this.device,i=this.distortion,n=e.screenLensDistance,r=(t.widthMeters-e.interLensDistance)/2,a=e.interLensDistance/2,o=e.baselineLensDistance-t.bevelMeters,s=t.heightMeters-o,c=P*Math.atan(i.distort(r/n)),u=P*Math.atan(i.distort(a/n)),h=P*Math.atan(i.distort(o/n)),l=P*Math.atan(i.distort(s/n));return{leftDegrees:Math.min(c,e.fov),rightDegrees:Math.min(u,e.fov),downDegrees:Math.min(h,e.fov),upDegrees:Math.min(l,e.fov)}},W.prototype.getLeftEyeVisibleTanAngles=function(){var e=this.viewer,t=this.device,i=this.distortion,n=Math.tan(-U*e.fov),r=Math.tan(U*e.fov),a=Math.tan(U*e.fov),o=Math.tan(-U*e.fov),s=t.widthMeters/4,c=t.heightMeters/2,u=e.baselineLensDistance-t.bevelMeters-c,h=e.interLensDistance/2-s,l=-u,d=e.screenLensDistance,p=i.distort((h-s)/d),f=i.distort((l+c)/d),g=i.distort((h+s)/d),m=i.distort((l-c)/d),M=new Float32Array(4);return M[0]=Math.max(n,p),M[1]=Math.min(r,f),M[2]=Math.min(a,g),M[3]=Math.max(o,m),M},W.prototype.getLeftEyeNoLensTanAngles=function(){var e=this.viewer,t=this.device,i=this.distortion,n=new Float32Array(4),r=i.distortInverse(Math.tan(-U*e.fov)),a=i.distortInverse(Math.tan(U*e.fov)),o=i.distortInverse(Math.tan(U*e.fov)),s=i.distortInverse(Math.tan(-U*e.fov)),c=t.widthMeters/4,u=t.heightMeters/2,h=e.baselineLensDistance-t.bevelMeters-u,l=e.interLensDistance/2-c,d=-h,p=e.screenLensDistance,f=(l-c)/p,g=(d+u)/p,m=(l+c)/p,M=(d-u)/p;return n[0]=Math.max(r,f),n[1]=Math.min(a,g),n[2]=Math.min(o,m),n[3]=Math.max(s,M),n},W.prototype.getLeftEyeVisibleScreenRect=function(e){var t=this.viewer,i=this.device,n=t.screenLensDistance,r=(i.widthMeters-t.interLensDistance)/2,a=t.baselineLensDistance-i.bevelMeters,o=(e[0]*n+r)/i.widthMeters,s=(e[1]*n+a)/i.heightMeters,c=(e[2]*n+r)/i.widthMeters,u=(e[3]*n+a)/i.heightMeters;return{x:o,y:u,width:c-o,height:s-u}},W.prototype.getFieldOfViewLeftEye=function(e){return e?this.getUndistortedFieldOfViewLeftEye():this.getDistortedFieldOfViewLeftEye()},W.prototype.getFieldOfViewRightEye=function(e){var t=this.getFieldOfViewLeftEye(e);return{leftDegrees:t.rightDegrees,rightDegrees:t.leftDegrees,upDegrees:t.upDegrees,downDegrees:t.downDegrees}},W.prototype.getUndistortedFieldOfViewLeftEye=function(){var e=this.getUndistortedParams_();return{leftDegrees:P*Math.atan(e.outerDist),rightDegrees:P*Math.atan(e.innerDist),downDegrees:P*Math.atan(e.bottomDist),upDegrees:P*Math.atan(e.topDist)}},W.prototype.getUndistortedViewportLeftEye=function(){var e=this.getUndistortedParams_(),t=this.viewer,i=this.device,n=t.screenLensDistance,r=i.widthMeters/n,a=i.heightMeters/n,o=i.width/r,s=i.height/a,c=Math.round((e.eyePosX-e.outerDist)*o),u=Math.round((e.eyePosY-e.bottomDist)*s);return{x:c,y:u,width:Math.round((e.eyePosX+e.innerDist)*o)-c,height:Math.round((e.eyePosY+e.topDist)*s)-u}},W.prototype.getUndistortedParams_=function(){var e=this.viewer,t=this.device,i=this.distortion,n=e.screenLensDistance,r=e.interLensDistance/2/n,a=t.widthMeters/n,o=t.heightMeters/n,s=a/2-r,c=(e.baselineLensDistance-t.bevelMeters)/n,u=e.fov,h=i.distortInverse(Math.tan(U*u)),l=Math.min(s,h),d=Math.min(r,h),p=Math.min(c,h);return{outerDist:l,innerDist:d,topDist:Math.min(o-c,h),bottomDist:p,eyePosX:s,eyePosY:c}},W.Viewers=H;var Z={format:1,last_updated:"2018-02-20T22:55:10Z",devices:[{type:"android",rules:[{mdmh:"asus/*/Nexus 7/*"},{ua:"Nexus 7"}],dpi:[320.8,323],bw:3,ac:500},{type:"android",rules:[{mdmh:"asus/*/ASUS_Z00AD/*"},{ua:"ASUS_Z00AD"}],dpi:[403,404.6],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"Google/*/Pixel XL/*"},{ua:"Pixel XL"}],dpi:[537.9,533],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"Google/*/Pixel/*"},{ua:"Pixel"}],dpi:[432.6,436.7],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"HTC/*/HTC6435LVW/*"},{ua:"HTC6435LVW"}],dpi:[449.7,443.3],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"HTC/*/HTC One XL/*"},{ua:"HTC One 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