The Tor Browser / file comparison
comparison: browser/devtools/shadereditor/test/doc_shader-order.html
browser/devtools/shadereditor/test/doc_shader-order.html
- branch
- TOR_BUG_9701
- changeset 11
- deefc01c0e14
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| -1:000000000000 | 0:d28a7bc64f0d |
|---|---|
| 1 <!-- Any copyright is dedicated to the Public Domain. | |
| 2 http://creativecommons.org/publicdomain/zero/1.0/ --> | |
| 3 <!doctype html> | |
| 4 | |
| 5 <html> | |
| 6 <head> | |
| 7 <meta charset="utf-8"/> | |
| 8 <title>WebGL editor test page</title> | |
| 9 | |
| 10 <script id="shader-vs" type="x-shader/x-vertex"> | |
| 11 precision lowp float; | |
| 12 | |
| 13 void main(void) { | |
| 14 gl_Position = vec4(0, 0, 0, 1); // I'm a vertex shader! | |
| 15 } | |
| 16 </script> | |
| 17 | |
| 18 <script id="shader-fs" type="x-shader/x-fragment"> | |
| 19 precision lowp float; | |
| 20 varying vec3 vFragmentColor; | |
| 21 | |
| 22 void main(void) { | |
| 23 gl_FragColor = vec4(1, 0, 0, 1); // I'm a fragment shader! | |
| 24 } | |
| 25 </script> | |
| 26 </head> | |
| 27 | |
| 28 <body> | |
| 29 <canvas width="512" height="512"></canvas> | |
| 30 | |
| 31 <script type="text/javascript;version=1.8"> | |
| 32 "use strict"; | |
| 33 | |
| 34 let canvas, gl; | |
| 35 | |
| 36 window.onload = function() { | |
| 37 canvas = document.querySelector("canvas"); | |
| 38 gl = canvas.getContext("webgl", { preserveDrawingBuffer: true }); | |
| 39 | |
| 40 let shaderProgram = gl.createProgram(); | |
| 41 let vertexShader, fragmentShader; | |
| 42 | |
| 43 // Compile and attach the shaders in a random order. The test will | |
| 44 // ensure that the correct vertex and fragment source is retrieved | |
| 45 // regardless of this crazyness. | |
| 46 if (Math.random() > 0.5) { | |
| 47 vertexShader = getShader(gl, "shader-vs"); | |
| 48 fragmentShader = getShader(gl, "shader-fs"); | |
| 49 } else { | |
| 50 fragmentShader = getShader(gl, "shader-fs"); | |
| 51 vertexShader = getShader(gl, "shader-vs"); | |
| 52 } | |
| 53 if (Math.random() > 0.5) { | |
| 54 gl.attachShader(shaderProgram, vertexShader); | |
| 55 gl.attachShader(shaderProgram, fragmentShader); | |
| 56 } else { | |
| 57 gl.attachShader(shaderProgram, fragmentShader); | |
| 58 gl.attachShader(shaderProgram, vertexShader); | |
| 59 } | |
| 60 | |
| 61 gl.linkProgram(shaderProgram); | |
| 62 } | |
| 63 | |
| 64 function getShader(gl, id) { | |
| 65 let script = document.getElementById(id); | |
| 66 let source = script.textContent; | |
| 67 let shader; | |
| 68 | |
| 69 if (script.type == "x-shader/x-fragment") { | |
| 70 shader = gl.createShader(gl.FRAGMENT_SHADER); | |
| 71 } else if (script.type == "x-shader/x-vertex") { | |
| 72 shader = gl.createShader(gl.VERTEX_SHADER); | |
| 73 } | |
| 74 | |
| 75 gl.shaderSource(shader, source); | |
| 76 gl.compileShader(shader); | |
| 77 | |
| 78 return shader; | |
| 79 } | |
| 80 </script> | |
| 81 </body> | |
| 82 | |
| 83 </html> |
