content/canvas/test/webgl-conformance/conformance/limits/gl-min-textures.html@6474c204b198 (annotated)
content/canvas/test/webgl-conformance/conformance/limits/gl-min-textures.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 | <!-- |
| michael@0 | 2 | Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| michael@0 | 3 | Use of this source code is governed by a BSD-style license that can be |
| michael@0 | 4 | found in the LICENSE file. |
| michael@0 | 5 | --> |
| michael@0 | 6 | <!DOCTYPE html> |
| michael@0 | 7 | <html> |
| michael@0 | 8 | <head> |
| michael@0 | 9 | <meta charset="utf-8"> |
| michael@0 | 10 | <title>WebGL the minimum number of uniforms are supported.</title> |
| michael@0 | 11 | <link rel="stylesheet" href="../../resources/js-test-style.css"/> |
| michael@0 | 12 | <script src="../../resources/js-test-pre.js"></script> |
| michael@0 | 13 | <script src="../resources/webgl-test.js"> </script> |
| michael@0 | 14 | <script src="../resources/webgl-test-utils.js"> </script> |
| michael@0 | 15 | </head> |
| michael@0 | 16 | <body> |
| michael@0 | 17 | <canvas id="example" width="4" height="4" style="width: 40px; height: 30px;"></canvas> |
| michael@0 | 18 | <div id="description"></div> |
| michael@0 | 19 | <div id="console"></div> |
| michael@0 | 20 | <script id="vshader" type="x-shader/x-vertex"> |
| michael@0 | 21 | attribute vec4 vPosition; |
| michael@0 | 22 | void main() |
| michael@0 | 23 | { |
| michael@0 | 24 | gl_Position = vPosition; |
| michael@0 | 25 | } |
| michael@0 | 26 | </script> |
| michael@0 | 27 | |
| michael@0 | 28 | <script id="fshader" type="x-shader/x-fragment"> |
| michael@0 | 29 | #define NUM_TEXTURES 8 // See spec |
| michael@0 | 30 | precision mediump float; |
| michael@0 | 31 | uniform sampler2D uni[NUM_TEXTURES]; |
| michael@0 | 32 | void main() |
| michael@0 | 33 | { |
| michael@0 | 34 | vec4 c = vec4(0,0,0,0); |
| michael@0 | 35 | for (int ii = 0; ii < NUM_TEXTURES; ++ii) { |
| michael@0 | 36 | c += texture2D(uni[ii], vec2(0.5, 0.5)); |
| michael@0 | 37 | } |
| michael@0 | 38 | gl_FragColor = c; |
| michael@0 | 39 | } |
| michael@0 | 40 | </script> |
| michael@0 | 41 | <script> |
| michael@0 | 42 | description(document.title); |
| michael@0 | 43 | var wtu = WebGLTestUtils; |
| michael@0 | 44 | var gl = wtu.create3DContext("example"); |
| michael@0 | 45 | var program = wtu.setupTexturedQuad(gl); |
| michael@0 | 46 | |
| michael@0 | 47 | //------------------------------------------------------------------------------ |
| michael@0 | 48 | var program = wtu.setupProgram( |
| michael@0 | 49 | gl, ['vshader', 'fshader'], ['vPosition'], [0]); |
| michael@0 | 50 | |
| michael@0 | 51 | for (var ii = 0; ii < 8; ++ii) { |
| michael@0 | 52 | var loc = gl.getUniformLocation(program, "uni[" + ii + "]"); |
| michael@0 | 53 | gl.activeTexture(gl.TEXTURE0 + ii); |
| michael@0 | 54 | var tex = gl.createTexture(); |
| michael@0 | 55 | wtu.fillTexture(gl, tex, 1, 1, [32, 16, 8, ii * 9], 0); |
| michael@0 | 56 | gl.uniform1i(loc, ii); |
| michael@0 | 57 | } |
| michael@0 | 58 | |
| michael@0 | 59 | wtu.drawQuad(gl); |
| michael@0 | 60 | glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup."); |
| michael@0 | 61 | wtu.checkCanvas(gl, [255, 128, 64, 252], |
| michael@0 | 62 | "Should render using all texture units", 1); |
| michael@0 | 63 | |
| michael@0 | 64 | successfullyParsed = true; |
| michael@0 | 65 | |
| michael@0 | 66 | </script> |
| michael@0 | 67 | <script>finishTest();</script> |
| michael@0 | 68 | |
| michael@0 | 69 | </body> |
| michael@0 | 70 | </html> |
| michael@0 | 71 | |
| michael@0 | 72 |
