content/canvas/test/reftest/webgl-hanging-scissor-test.html@6474c204b198 (annotated)
content/canvas/test/reftest/webgl-hanging-scissor-test.html
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | <!DOCTYPE html> |
| michael@0 | 2 | <html class="reftest-wait"> |
| michael@0 | 3 | <head> |
| michael@0 | 4 | <meta charset="UTF-8"> |
| michael@0 | 5 | |
| michael@0 | 6 | <script type="text/javascript" src="webgl-utils.js"></script> |
| michael@0 | 7 | <script type="text/javascript"> |
| michael@0 | 8 | /* Hanging Scissor Test |
| michael@0 | 9 | * |
| michael@0 | 10 | * Clear the canvas to green, but create and enable and set scissor values |
| michael@0 | 11 | * before returning. This can fail if we blindly blit or read from the screen |
| michael@0 | 12 | * without disabling scissor-test. |
| michael@0 | 13 | * |
| michael@0 | 14 | * Failure should look like only the top-left quadrant is rendered. |
| michael@0 | 15 | */ |
| michael@0 | 16 | |
| michael@0 | 17 | "use strict"; |
| michael@0 | 18 | |
| michael@0 | 19 | function renderGL(gl) { |
| michael@0 | 20 | gl.clearColor(0.0, 1.0, 0.0, 1.0); |
| michael@0 | 21 | gl.clear(gl.COLOR_BUFFER_BIT); |
| michael@0 | 22 | |
| michael@0 | 23 | gl.enable(gl.SCISSOR_TEST); |
| michael@0 | 24 | gl.scissor(0, 128, 128, 128); |
| michael@0 | 25 | |
| michael@0 | 26 | gl.finish(); |
| michael@0 | 27 | } |
| michael@0 | 28 | |
| michael@0 | 29 | function renderFailure(canvas) { |
| michael@0 | 30 | // This will also trigger RAF for us. |
| michael@0 | 31 | var context = canvas.getContext("2d"); |
| michael@0 | 32 | context.fillText('WebGL failed.', 64, 64); |
| michael@0 | 33 | } |
| michael@0 | 34 | |
| michael@0 | 35 | function runTest() { |
| michael@0 | 36 | var canvas = document.getElementById("canvas"); |
| michael@0 | 37 | var gl = initGL(canvas); |
| michael@0 | 38 | |
| michael@0 | 39 | if (gl) |
| michael@0 | 40 | renderGL(gl); |
| michael@0 | 41 | else |
| michael@0 | 42 | renderFailure(canvas); |
| michael@0 | 43 | |
| michael@0 | 44 | waitForComposite(testComplete); |
| michael@0 | 45 | } |
| michael@0 | 46 | |
| michael@0 | 47 | function testComplete() { |
| michael@0 | 48 | document.documentElement.removeAttribute("class"); |
| michael@0 | 49 | } |
| michael@0 | 50 | </script> |
| michael@0 | 51 | </head> |
| michael@0 | 52 | |
| michael@0 | 53 | <body onload="rAF(runTest);"> |
| michael@0 | 54 | <canvas id="canvas" width="256" height="256"></canvas> |
| michael@0 | 55 | </body> |
| michael@0 | 56 | |
| michael@0 | 57 | </html> |
