content/canvas/test/webgl-mochitest/test_depth_readpixels.html@6474c204b198 (annotated)
content/canvas/test/webgl-mochitest/test_depth_readpixels.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> |
| michael@0 | 3 | <head> |
| michael@0 | 4 | <title>WebGL test: Check for error on ReadPixels from a depth-only FB.</title> |
| michael@0 | 5 | <script src="/tests/SimpleTest/SimpleTest.js"></script> |
| michael@0 | 6 | <link rel="stylesheet" href="/tests/SimpleTest/test.css"> |
| michael@0 | 7 | <script src="webgl-util.js"></script> |
| michael@0 | 8 | <script src="driver-info.js"></script> |
| michael@0 | 9 | </head> |
| michael@0 | 10 | <body> |
| michael@0 | 11 | <canvas id="c"></canvas> |
| michael@0 | 12 | <script> |
| michael@0 | 13 | "use strict"; |
| michael@0 | 14 | |
| michael@0 | 15 | (function() { |
| michael@0 | 16 | var gl = WebGLUtil.getWebGL('c'); |
| michael@0 | 17 | if (!gl) { |
| michael@0 | 18 | todo(gl, 'Get GL working here first.'); |
| michael@0 | 19 | return; |
| michael@0 | 20 | } |
| michael@0 | 21 | |
| michael@0 | 22 | var rb = gl.createRenderbuffer(); |
| michael@0 | 23 | gl.bindRenderbuffer(gl.RENDERBUFFER, rb); |
| michael@0 | 24 | gl.renderbufferStorage(gl.RENDERBUFFER, gl.DEPTH_COMPONENT16, 4, 4); |
| michael@0 | 25 | |
| michael@0 | 26 | var fb = gl.createFramebuffer(); |
| michael@0 | 27 | gl.bindFramebuffer(gl.FRAMEBUFFER, fb); |
| michael@0 | 28 | gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.DEPTH_ATTACHMENT, |
| michael@0 | 29 | gl.RENDERBUFFER, rb); |
| michael@0 | 30 | |
| michael@0 | 31 | if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) != gl.FRAMEBUFFER_COMPLETE) { |
| michael@0 | 32 | todo(false, 'Depth-only FB incomplete. This is valid.'); |
| michael@0 | 33 | return; |
| michael@0 | 34 | } |
| michael@0 | 35 | |
| michael@0 | 36 | ok(!gl.getError(), 'Should have no errors after constructing FB.'); |
| michael@0 | 37 | |
| michael@0 | 38 | var pixels = new Uint8Array([1, 2, 3, 4]); |
| michael@0 | 39 | gl.readPixels(0, 0, // x,y |
| michael@0 | 40 | 1, 1, // w,h |
| michael@0 | 41 | gl.RGBA, gl.UNSIGNED_BYTE, pixels); |
| michael@0 | 42 | |
| michael@0 | 43 | ok(gl.getError() == gl.INVALID_OPERATION, |
| michael@0 | 44 | '1x1 color read from a depth FB should generated INVALID_OP.'); |
| michael@0 | 45 | console.log('Data after 1x1 color-from-depth readpixels:'); |
| michael@0 | 46 | console.log(pixels); |
| michael@0 | 47 | |
| michael@0 | 48 | gl.readPixels(0, 0, // x,y |
| michael@0 | 49 | 0, 0, // w,h |
| michael@0 | 50 | gl.RGBA, gl.UNSIGNED_BYTE, pixels); |
| michael@0 | 51 | |
| michael@0 | 52 | ok(gl.getError() == gl.INVALID_OPERATION, |
| michael@0 | 53 | '0x0 color read from a depth FB should generated INVALID_OP.'); |
| michael@0 | 54 | })(); |
| michael@0 | 55 | |
| michael@0 | 56 | ok(true, 'Test complete.'); |
| michael@0 | 57 | |
| michael@0 | 58 | </script> |
| michael@0 | 59 | </body> |
| michael@0 | 60 | </html> |
