2 lines
427 KiB
JavaScript
2 lines
427 KiB
JavaScript
|
!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?t(require("crypto")):"function"==typeof define&&define.amd?define(["crypto"],t):t((e="undefined"!=typeof globalThis?globalThis:e||self).crypto)}(this,(function(e){"use strict";function t(e){return e&&"object"==typeof e&&"default"in e?e:{default:e}}var r=t(e),s=1e-6,a="undefined"!=typeof Float32Array?Float32Array:Array;function n(){var e=new a(16);return a!=Float32Array&&(e[1]=0,e[2]=0,e[3]=0,e[4]=0,e[6]=0,e[7]=0,e[8]=0,e[9]=0,e[11]=0,e[12]=0,e[13]=0,e[14]=0),e[0]=1,e[5]=1,e[10]=1,e[15]=1,e}function o(e){return e[0]=1,e[1]=0,e[2]=0,e[3]=0,e[4]=0,e[5]=1,e[6]=0,e[7]=0,e[8]=0,e[9]=0,e[10]=1,e[11]=0,e[12]=0,e[13]=0,e[14]=0,e[15]=1,e}Math.hypot||(Math.hypot=function(){for(var e=0,t=arguments.length;t--;)e+=arguments[t]*arguments[t];return Math.sqrt(e)});var d,l=function(e,t,i,r,s,a,n){var o=1/(t-i),d=1/(r-s),l=1/(a-n);return e[0]=-2*o,e[1]=0,e[2]=0,e[3]=0,e[4]=0,e[5]=-2*d,e[6]=0,e[7]=0,e[8]=0,e[9]=0,e[10]=2*l,e[11]=0,e[12]=(t+i)*o,e[13]=(s+r)*d,e[14]=(n+a)*l,e[15]=1,e};function c(e,t,i){var r=new a(3);return r[0]=e,r[1]=t,r[2]=i,r}d=new a(3),a!=Float32Array&&(d[0]=0,d[1]=0,d[2]=0);var u=(e,t)=>{t&&e.pixelStorei(e.UNPACK_ALIGNMENT,1);const i=function(){const t=_(e.VERTEX_SHADER,"\n attribute vec4 aVertexPosition;\n attribute vec2 aTexturePosition;\n uniform mat4 uModelMatrix;\n uniform mat4 uViewMatrix;\n uniform mat4 uProjectionMatrix;\n varying lowp vec2 vTexturePosition;\n void main(void) {\n gl_Position = uProjectionMatrix * uViewMatrix * uModelMatrix * aVertexPosition;\n vTexturePosition = aTexturePosition;\n }\n "),i=_(e.FRAGMENT_SHADER,"\n precision highp float;\n varying highp vec2 vTexturePosition;\n uniform int isyuv;\n uniform sampler2D rgbaTexture;\n uniform sampler2D yTexture;\n uniform sampler2D uTexture;\n uniform sampler2D vTexture;\n\n const mat4 YUV2RGB = mat4( 1.1643828125, 0, 1.59602734375, -.87078515625,\n 1.1643828125, -.39176171875, -.81296875, .52959375,\n 1.1643828125, 2.017234375, 0, -1.081390625,\n 0, 0, 0, 1);\n\n\n void main(void) {\n\n if (isyuv>0) {\n\n highp float y = texture2D(yTexture, vTexturePosition).r;\n highp float u = texture2D(uTexture, vTexturePosition).r;\n highp float v = texture2D(vTexture, vTexturePosition).r;\n gl_FragColor = vec4(y, u, v, 1) * YUV2RGB;\n\n } else {\n gl_FragColor = texture2D(rgbaTexture, vTexturePosition);\n }\n }\n "),r=e.createProgram();if(e.attachShader(r,t),e.attachShader(r,i),e.linkProgram(r),!e.getProgramParameter(r,e.LINK_STATUS))return console.log("Unable to initialize the shader program: "+e.getProgramInfoLog(r)),null;return r}();let r={program:i,attribLocations:{vertexPosition:e.getAttribLocation(i,"aVertexPosition"),texturePosition:e.getAttribLocation(i,"aTexturePosition")},uniformLocations:{projectionMatrix:e.getUniformLocation(i,"uProjectionMatrix"),modelMatrix:e.getUniformLocation(i,"uModelMatrix"),viewMatrix:e.getUniformLocation(i,"uViewMatrix"),rgbatexture:e.getUniformLocation(i,"rgbaTexture"),ytexture:e.getUniformLocation(i,"yTexture"),utexture:e.getUniformLocation(i,"uTexture"),vtexture:e.getUniformLocation(i,"vTexture"),isyuv:e.getUniformLocation(i,"isyuv")}},a=function(){const t=e.createBuffer();e.bindBuffer(e.ARRAY_BUFFER,t);e.bufferData(e.ARRAY_BUFFER,new Float32Array([-1,-1,-1,1,-1,-1,1,1,-1,-1,1,-1]),e.STATIC_DRAW);var i=[];i=i.concat([0,1],[1,1],[1,0],[0,0]);const r=e.createBuffer();e.bindBuffer(e.ARRAY_BUFFER,r),e.bufferData(e.ARRAY_BUFFER,new Float32Array(i),e.STATIC_DRAW);const s=e.createBuffer();e.bindBuffer(e.ELEMENT_ARRAY_BUFFER,s);return e.bufferData(e.ELEMENT_ARRAY_BUFFER,new U
|