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comparison: content/canvas/test/reftest/webgl-hanging-fb-test.html
content/canvas/test/reftest/webgl-hanging-fb-test.html
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| -1:000000000000 | 0:1264d83d8420 |
|---|---|
| 1 <!DOCTYPE html> | |
| 2 <html class="reftest-wait"> | |
| 3 <head> | |
| 4 <meta charset="UTF-8"> | |
| 5 | |
| 6 <script type="text/javascript" src="webgl-utils.js"></script> | |
| 7 <script type="text/javascript"> | |
| 8 /* Hanging Framebuffer Test | |
| 9 * | |
| 10 * Clear the canvas to green, but create and bind a new framebuffer | |
| 11 * before returning. This will fail if we blindly read from the bound | |
| 12 * framebuffer, instead of binding to the screen and reading from that. | |
| 13 * | |
| 14 * How failure looks isn't well defined, since this is an empty framebuffer, | |
| 15 * thus is incomplete, and should cause errors if it's read from. | |
| 16 */ | |
| 17 | |
| 18 "use strict"; | |
| 19 | |
| 20 function renderGL(gl) { | |
| 21 gl.clearColor(0.0, 1.0, 0.0, 1.0); | |
| 22 gl.clear(gl.COLOR_BUFFER_BIT); | |
| 23 | |
| 24 var fb = gl.createFramebuffer(); | |
| 25 gl.bindFramebuffer(gl.FRAMEBUFFER, fb); | |
| 26 | |
| 27 gl.finish(); | |
| 28 } | |
| 29 | |
| 30 function renderFailure(canvas) { | |
| 31 // This will also trigger RAF for us. | |
| 32 var context = canvas.getContext("2d"); | |
| 33 context.fillText('WebGL failed.', 64, 64); | |
| 34 } | |
| 35 | |
| 36 function runTest() { | |
| 37 var canvas = document.getElementById("canvas"); | |
| 38 var gl = initGL(canvas); | |
| 39 | |
| 40 if (gl) | |
| 41 renderGL(gl); | |
| 42 else | |
| 43 renderFailure(canvas); | |
| 44 | |
| 45 waitForComposite(testComplete); | |
| 46 } | |
| 47 | |
| 48 function testComplete() { | |
| 49 document.documentElement.removeAttribute("class"); | |
| 50 } | |
| 51 </script> | |
| 52 </head> | |
| 53 | |
| 54 <body onload="rAF(runTest);"> | |
| 55 <canvas id="canvas" width="256" height="256"></canvas> | |
| 56 </body> | |
| 57 | |
| 58 </html> |
