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c(this,a),(t=e.call(this,t)).useFrameCallback&&(t.animId=t.video.requestVideoFrameCallback(t.drawFrame.bind(l(t)))),t.insType=t.options.type,k[t.insType]?t.instance=k[t.insType]:t.instance=k[t.insType]={},t.textures=[],t.buffers=[],t.shaders=[],t.init(),t}return h(a,[{key:"init",value:function(){return w(this,void 0,void 0,s.mark(function t(){return s.wrap(function(t){for(;;)switch(t.prev=t.next){case 0:if(this.setCanvas(),this.options.config)return t.prev=2,t.next=5,new E(this.options.config,this.options).init();t.next=12;break;case 5:this.vapFrameParser=t.sent,this.resources=this.vapFrameParser.srcData,t.next=12;break;case 9:t.prev=9,t.t0=t.catch(2);case 12:this.resources=this.resources||{},this.initWebGL(),this.play();case 15:case"end":return t.stop()}},t,this,[[2,9]])}))}},{key:"setCanvas",value:function(){var t=this.instance.canvas,e=this.options,r=e.width,e=e.height;(t=t||(this.instance.canvas=document.createElement("canvas"))).width=r,t.height=e,this.container.appendChild(t)}},{key:"initWebGL",value:function(){var t=this.instance.canvas,e=this.instance,r=e.gl,n=e.vertexShader,o=e.fragmentShader,i=e.program;if(t)return r||(this.instance.gl=r=t.getContext("webgl")||t.getContext("experimental-webgl"),r.disable(r.BLEND),r.blendFuncSeparate(r.SRC_ALPHA,r.ONE_MINUS_SRC_ALPHA,r.SRC_ALPHA,r.ONE_MINUS_SRC_ALPHA),r.pixelStorei(r.UNPACK_FLIP_Y_WEBGL,!0)),r.clear(r.COLOR_BUFFER_BIT),r?(r.viewport(0,0,t.width,t.height),n=n||(this.instance.vertexShader=this.initVertexShader()),o=o||(this.instance.fragmentShader=this.initFragmentShader()),i=i||(this.instance.program=(e=n,t=o,o=(n=r).createProgram(),n.attachShader(o,e),n.attachShader(o,t),n.linkProgram(o),n.useProgram(o),o)),this.program=i,this.initTexture(),this.initVideoTexture(),r):void 0}},{key:"initVertexShader",value:function(){var t=this.instance.gl;return A(t,t.VERTEX_SHADER,"attribute vec2 a_position; // 接受顶点坐标\n attribute vec2 a_texCoord; // 接受纹理坐标\n attribute vec2 a_alpha_texCoord; // 接受纹理坐标\n varying vec2 v_alpha_texCoord; // 接受纹理坐标\n varying vec2 v_texcoord; // 传递纹理坐标给片元着色器\n void main(void){\n gl_Position = vec4(a_position, 0.0, 1.0); // 设置坐标\n v_texcoord = a_texCoord; // 设置纹理坐标\n v_alpha_texCoord = a_alpha_texCoord; // 设置纹理坐标\n }")}},{key:"initFragmentShader",value:function(){var t=this.instance.gl,e=t.getParameter(t.MAX_TEXTURE_IMAGE_UNITS)-1,r="",n="";if(0<e){for(var o=[],i=[],a=0;a<e;a++)o.push("if(ndx == ".concat(a+1,"){\n color = texture2D(u_image").concat(a+1,",uv);\n }")),i.push("uniform sampler2D u_image".concat(a+1,";"));n="\n ".concat(i.join("\n"),"\n uniform float image_pos[").concat(9*e,"];\n vec4 getSampleFromArray(int ndx, vec2 uv) {\n vec4 color;\n ").concat(o.join(" else "),"\n return color;\n }\n "),r="\n vec4 srcColor,maskColor;\n vec2 srcTexcoord,maskTexcoord;\n int srcIndex;\n float x1,x2,y1,y2,mx1,mx2,my1,my2; //显示的区域\n\n for(int i=0;i<".concat(9*e,";i+= ").concat(9,"){\n if ((int(image_pos[i]) > 0)) {\n srcIndex = int(image_pos[i]);\n \n x1 = image_pos[i+1];\n x2 = image_pos[i+2];\n y1 = image_pos[i+3];\n y2 = image_pos[i+4];\n \n mx1 = image_pos[i+5];\n mx2 = image_pos[i+6];\n my1 = image_pos[i+7];\n my2 = image_pos[i+8];\n \n \n if (v_texcoord.s>x1 && v_texcoord.s<x2 && v_texcoord.t>y1 && v_texcoord.t<y2) {\n srcTexcoord = vec2((v_texcoord.s-x1)/(x2-x1),(v_texcoord.t-y1)/(y2-y1));\n maskTexcoord = vec2(mx1+srcTexcoord.s*(mx2-mx1),my1+srcTexcoord.t*(my2-my1));\n srcColor = getSampleFromArray(srcIndex,srcTexcoord);\n maskColor = texture2D(u_image_video, maskTexcoord);\n srcColor.a = srcColor.a*(maskColor.r);\n \n bgColor = vec4(srcColor.rgb*srcColor.a,srcColor.a) + (1.0-srcColor.a)*bgColor;\n \n } \n }\n }\n ")}r="\n precision lowp float;\n varying vec2 v_texcoord;\n varying vec2 v_alpha_texCoord;\n uniform sampler2D u_image_video;\n ".concat(n,"\n \n void main(void) {\n vec4 bgColor = ").concat("vec4(texture2D(u_image_video, v_texcoord).rgb, texture2D(u_image_video,v_alpha_texCoord).r);","\n ").concat(r,"\n // bgColor = texture2D(u_image[0], v_texcoord);\n gl_FragColor = bgColor;\n }\n ");return A(t,t.FRAGMENT_SHADER,r)}},{key:"initTexture",value:function(){var t=this.instance.gl,e=1;if(this.vapFrameParser&&this.vapFrameParser.srcData){var r,n=this.vapFrameParser.srcData;for(r in n){var o=n[r];this.textures.push(F(t,e,o.img));var i=t.getUniformLocation(this.program,"u_image".concat(e));t.uniform1i(i,e),this.vapFrameParser.textureMap[o.srcId]=e++}var a=t.createTexture();t.activeTexture(t.TEXTURE0),t.bindTexture(t.TEXTURE_2D,a),t.texImage2D(t.TEXTURE_2D,0,t.RGBA,1,1,0,t.RGBA,t.UNSIGNED_BYTE,null),this.videoTexture=F(t,e);a=t.getUniformLocation(this.program,"u_image_video");t.uniform1i(a,e)}}},{key:"initVideoTexture",value:function(){var t,e,r,n,o,i,a,s,c,u,h,l=this.instance.gl,f=l.createBuffer();this.buffers.push(f),this.vapFrameParser&&this.vapFrameParser.config&&this.vapFrameParser.config.info&&(h=[],t=(a=this.vapFrameParser.config.info).videoW,u=a.videoH,e=(i=v(a.rgbFrame,4))[0],r=i[1],n=i[2],c=i[3],o=(s=v(a.aFrame,4))[0],i=s[1],a=s[2],s=s[3],c=P(e,r,n,c,t,u),u=P(o,i,a,s,t,u),h.push.apply(h,[-1,1,c[0],c[3],u[0],u[3]]),h.push.apply(h,[1,1,c[1],c[3],u[1],u[3]]),h.push.apply(h,[-1,-1,c[0],c[2],u[0],u[2]]),h.push.apply(h,[1,-1,c[1],c[2],u[1],u[2]]),h=new Float32Array(h),l.bindBuffer(l.ARRAY_BUFFER,f),l.bufferData(l.ARRAY_BUFFER,h,l.STATIC_DRAW),this.aPosition=l.getAttribLocation(this.program,"a_position"),l.enableVertexAttribArray(this.aPosition),this.aTexCoord=l.getAttribLocation(this.program,"a_texCoord"),l.enableVertexAttribArray(this.aTexCoord),this.aAlphaTexCoord=l.getAttribLocation(this.program,"a_alpha_texCoord"),l.enableVertexAttribArray(this.aAlphaTexCoord),h=h.BYTES_PER_ELEMENT,l.vertexAttribPointer(this.aPosition,2,l.FLOAT,!1,6*h,0),l.vertexAttribPointer(this.aTexCoord,2,l.FLOAT,!1,6*h,2*h),l.vertexAttribPointer(this.aAlphaTexCoord,2,l.FLOAT,!1,6*h,4*h))}},{key:"drawFrame",value:function(t,e){var p=this,r=e&&0<=e.mediaTime?e.mediaTime:this.video.currentTime,n=e&&0<e.presentedFrames?e.presentedFrames-1:Math.round(r*this.options.fps)+this.options.offset;(this.events.frame||[]).forEach(function(t){t(n+1,r)});var o,d,i=this.instance.gl;i&&(i.clear(i.COLOR_BUFFER_BIT),this.vapFrameParser&&(o=this.vapFrameParser.getFrame(n),d=[],o&&o.obj&&o.obj.forEach(function(t,e){d[d.length]=+p.vapFrameParser.textureMap[t.srcId];var r=p.vapFrameParser.config.info,n=r.videoW,o=r.videoH,i=v(r.rgbFrame,2),a=i[0],s=i[1],c=v(t.frame,4),u=c[0],h=c[1],l=c[2],f=c[3],r=v(t.mFrame,4),i=r[0],c=r[1],t=r[2],r=r[3],f=P(u+a,h+s,l,f,n,o),o=P(i,c,t,r,n,o);d=d.concat(f).concat(o)}),o=9*(i.getParameter(i.MAX_TEXTURE_IMAGE_UNITS)-1),d=d.concat(new Array(o-d.length).fill(0)),this._imagePos=this._imagePos||i.getUniformLocation(this.program,"image_pos"),i.uniform1fv(this._imagePos,new Float32Array(d))),i.texImage2D(i.TEXTURE_2D,0,i.RGB,i.RGB,i.UNSIGNED_BYTE,this.video),i.drawArrays(i.TRIANGLE_STRIP,0,4)),m(_(a.prototype),"drawFrame",this).call(this,t,e)}},{key:"destroy",value:function(){var t=this.instance,e=t.canvas,r=t.gl;if(this.textures&&this.textures.length)for(var n=0;n<this.textures.length;n++)r.deleteTexture(this.textures[n]);e&&e.parentNode&&e.parentNode.removeChild(e),r.clear(r.COLOR_BUFFER_BIT),m(_(a.prototype),"destroy",this).call(this),this.clearMemoryCache()}},{key:"clearMemoryCache",value:function(){S&&clearTimeout(S),S=setTimeout(function(){k={}},18e5)}}]),a}();return function(t){if(function(){if(void 0!==e)return e;try{if(!window.WebGLRenderingContext)return!1;var t=document.createElement("canvas"),t=t.getContext("webgl")||t.getContext("experimental-webgl");e=!!t,t=null}catch(t){e=!1}return e}())return new L(Object.assign({},t));throw new Error("your browser not support webgl")}});
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