| Index: third_party/webgl/sdk/tests/conformance/more/demos/video.html
|
| ===================================================================
|
| --- third_party/webgl/sdk/tests/conformance/more/demos/video.html (revision 0)
|
| +++ third_party/webgl/sdk/tests/conformance/more/demos/video.html (revision 0)
|
| @@ -0,0 +1,135 @@
|
| +<html>
|
| +<head>
|
| +<meta charset="utf-8">
|
| +<script type="application/x-javascript" src="../util.js"></script>
|
| +<script>
|
| +var processor = {
|
| + lastTime : new Date,
|
| + timerCallback: function() {
|
| + if (this.video.paused || this.video.ended) {
|
| + return;
|
| + }
|
| + this.computeFrame();
|
| + var t = new Date;
|
| + var elapsed = t - this.lastTime;
|
| + this.lastTime = t;
|
| + var self = this;
|
| + setTimeout(function () {
|
| + self.timerCallback();
|
| + }, Math.max(0, 33-elapsed));
|
| + },
|
| +
|
| + init: function() {
|
| + if (this.initDone) return;
|
| + this.c2 = document.getElementById("c2");
|
| + this.ctx2 = this.c2.getContext(GL_CONTEXT_ID);
|
| + this.greenScreen = new Filter(this.ctx2, 'identity-flip-vert', 'greenScreen');
|
| + this.ctx2.activeTexture(this.ctx2.TEXTURE0);
|
| + this.tex = loadTexture(this.ctx2, this.c1, false);
|
| + this.ctx2.activeTexture(this.ctx2.TEXTURE1);
|
| + this.tex2 = loadTexture(this.ctx2, document.getElementById('i'), false);
|
| + this.ctx2.activeTexture(this.ctx2.TEXTURE0);
|
| + this.initDone = true;
|
| + },
|
| +
|
| + doLoad: function() {
|
| + this.video = document.getElementById("video");
|
| + this.c1 = document.getElementById("c1");
|
| + this.ctx1 = this.c1.getContext("2d");
|
| + this.ctx1.globalCompositeOperation = 'copy';
|
| + this.ctx1.fillRect(0,0,this.c1.width, this.c1.height);
|
| + var self = this;
|
| + this.video.addEventListener("play", function() {
|
| + self.init();
|
| + self.width = self.video.videoWidth;
|
| + self.height = self.video.videoHeight;
|
| + self.lastTime = new Date;
|
| + self.timerCallback();
|
| + }, false);
|
| + },
|
| +
|
| + computeFrame: function() {
|
| +// this.ctx1.drawImage(this.video, 0, 0, this.width, this.height);
|
| + this.ctx2.texImage2D(this.ctx2.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, this.video);
|
| + this.greenScreen.apply(function(s) {
|
| + s.uniform1i('Texture', 0);
|
| + s.uniform1i('Texture2', 1);
|
| + });
|
| +
|
| + return;
|
| + }
|
| +};
|
| +
|
| +</script>
|
| +<script id="identity-flip-vert" type="x-shader/x-vertex">
|
| + attribute vec3 Vertex;
|
| + attribute vec2 Tex;
|
| +
|
| + varying vec4 texCoord0;
|
| + void main()
|
| + {
|
| + texCoord0 = vec4(Tex.s,1.0-Tex.t,0.0,0.0);
|
| + gl_Position = vec4(Vertex, 1.0);
|
| + }
|
| +</script>
|
| +<script id="greenScreen" type="x-shader/x-fragment">
|
| + precision mediump float;
|
| +
|
| + uniform sampler2D Texture;
|
| + uniform sampler2D Texture2;
|
| +
|
| + varying vec4 texCoord0;
|
| + void main()
|
| + {
|
| + vec4 c = texture2D(Texture, texCoord0.st);
|
| + float r = c.r * 0.5;
|
| + float a = c.g * 6.28;
|
| + float x = cos(a) * r;
|
| + float y = sin(a) * r;
|
| + vec4 c2 = texture2D(Texture2, vec2(0.7+x, 0.5+y));
|
| + // Shaders with branches are not allowed when dealing with non-SOP content
|
| + // so instead of "if (b) c2.a = 0;", we use mix()
|
| + bool b = (c.g > 120.0/255.0 && c.r > 120.0/255.0 && c.b < 50.0/255.0);
|
| + c2.a = mix(c2.a, 0.0, float(b));
|
| + gl_FragColor = c2;
|
| + }
|
| +</script>
|
| + <style>
|
| + body {
|
| + background: black;
|
| + color:#CCCCCC;
|
| + }
|
| + a {
|
| + color: white;
|
| + }
|
| + #c2 {
|
| + background-image: url(http://www.mozbox.org/pub/green/foo.png);
|
| + background-repeat: repeat;
|
| + }
|
| + div {
|
| + float: left;
|
| + border :1px solid #444444;
|
| + padding:10px;
|
| + margin: 10px;
|
| + background:#3B3B3B;
|
| + }
|
| + img { display: none; }
|
| + </style>
|
| + </head>
|
| + <body onload="processor.doLoad()">
|
| + <div>
|
| + This is a port of Paul Rouget's <a href="http://blog.mozbox.org/post/2009/02/25/video-canvas%3A-special-effects">Canvas+Video green screen demo</a>, plus a texture lookup from the Firefox logo based on the values of the green and red color channels.
|
| + </div>
|
| + <div>
|
| + <video id="video" controls="true">
|
| + <source src="http://www.mozbox.org/pub/green/video.ogv"></source>
|
| + <source src="http://cs.helsinki.fi/u/ilmarihe/c3d/demos/video.mp4"></source>
|
| + </video>
|
| + <canvas id="c1" width="320" height="192"></canvas>
|
| + </div>
|
| + <div>
|
| + <canvas id="c2" width="640" height="384"></canvas>
|
| + </div>
|
| + <img id="i" src="http://www.mozbox.org/pub/green/foo.png">
|
| + </body>
|
| +</html>
|
|
|
| Property changes on: third_party/webgl/sdk/tests/conformance/more/demos/video.html
|
| ___________________________________________________________________
|
| Added: svn:eol-style
|
| + LF
|
|
|
|
|
Chromium Code Reviews
Issue 9373009:
Check in webgl conformance tests r16844 from khronos. (Closed)
Base URL: svn://chrome-svn/chrome/trunk/deps/