content/canvas/test/webgl-conformance/conformance/glsl/samplers/glsl-function-texture2dlod.html@8bccb770b82d (annotated)
content/canvas/test/webgl-conformance/conformance/glsl/samplers/glsl-function-texture2dlod.html
Wed, 31 Dec 2014 13:27:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 13:27:57 +0100
- branch
- TOR_BUG_3246
- changeset 6
- 8bccb770b82d
- permissions
- -rw-r--r--
Ignore runtime configuration files generated during quality assurance.
| 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 texture2D GLSL conformance test.</title> |
| michael@0 | 11 | <link rel="stylesheet" href="../../../resources/js-test-style.css"/> |
| michael@0 | 12 | <link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/> |
| michael@0 | 13 | <script src="../../../resources/js-test-pre.js"></script> |
| michael@0 | 14 | <script src="../../resources/webgl-test.js"> </script> |
| michael@0 | 15 | <script src="../../resources/webgl-test-utils.js"> </script> |
| michael@0 | 16 | </head> |
| michael@0 | 17 | <body> |
| michael@0 | 18 | <canvas id="example" width="256" height="256" style="width: 16px; height: 16px;"></canvas> |
| michael@0 | 19 | <div id="description"></div> |
| michael@0 | 20 | <div id="console"></div> |
| michael@0 | 21 | <script id="vshader2d" type="x-shader/x-vertex"> |
| michael@0 | 22 | attribute vec4 vPosition; |
| michael@0 | 23 | attribute vec2 texCoord0; |
| michael@0 | 24 | varying vec4 color; |
| michael@0 | 25 | uniform sampler2D tex; |
| michael@0 | 26 | uniform float lod; |
| michael@0 | 27 | void main() { |
| michael@0 | 28 | gl_Position = vPosition; |
| michael@0 | 29 | color = texture2DLod(tex, texCoord0, lod); |
| michael@0 | 30 | } |
| michael@0 | 31 | </script> |
| michael@0 | 32 | <script id="fshader2d" type="x-shader/x-vertex"> |
| michael@0 | 33 | precision mediump float; |
| michael@0 | 34 | varying vec4 color; |
| michael@0 | 35 | void main() { |
| michael@0 | 36 | gl_FragData[0] = color; |
| michael@0 | 37 | } |
| michael@0 | 38 | </script> |
| michael@0 | 39 | <script> |
| michael@0 | 40 | description("tests GLSL texture2DLod function"); |
| michael@0 | 41 | |
| michael@0 | 42 | var wtu = WebGLTestUtils; |
| michael@0 | 43 | var canvas = document.getElementById("example"); |
| michael@0 | 44 | |
| michael@0 | 45 | shouldBe("canvas.width", "256"); |
| michael@0 | 46 | shouldBe("canvas.height", "256"); |
| michael@0 | 47 | |
| michael@0 | 48 | var gl = wtu.create3DContext(canvas); |
| michael@0 | 49 | var program = wtu.setupProgram( |
| michael@0 | 50 | gl, ['vshader2d', 'fshader2d'], ['vPosition', 'texCoord0'], [0, 1]); |
| michael@0 | 51 | wtu.setupUnitQuad(gl, 0, 1); |
| michael@0 | 52 | |
| michael@0 | 53 | var colors = [ |
| michael@0 | 54 | {name: 'red', color:[255, 0, 0, 255]}, |
| michael@0 | 55 | {name: 'green', color:[0, 255, 0, 255]}, |
| michael@0 | 56 | {name: 'blue', color:[0, 0, 255, 255]}, |
| michael@0 | 57 | {name: 'yellow', color:[255, 255, 0, 255]}, |
| michael@0 | 58 | {name: 'magenta', color:[255, 0, 255, 255]}, |
| michael@0 | 59 | {name: 'cyan', color:[0, 255, 255, 255]}, |
| michael@0 | 60 | {name: 'pink', color:[255, 128, 128, 255]}, |
| michael@0 | 61 | {name: 'gray', color:[128, 128, 128, 255]}, |
| michael@0 | 62 | {name: 'light green', color:[128, 255, 128, 255]}, |
| michael@0 | 63 | ]; |
| michael@0 | 64 | |
| michael@0 | 65 | shouldBe("colors.length", "9"); |
| michael@0 | 66 | |
| michael@0 | 67 | var tex = gl.createTexture(); |
| michael@0 | 68 | gl.bindTexture(gl.TEXTURE_2D, tex); |
| michael@0 | 69 | gl.texParameteri( |
| michael@0 | 70 | gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST_MIPMAP_LINEAR); |
| michael@0 | 71 | gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR); |
| michael@0 | 72 | gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT); |
| michael@0 | 73 | gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT); |
| michael@0 | 74 | |
| michael@0 | 75 | for (var ii = 0; ii < colors.length; ++ii) { |
| michael@0 | 76 | var color = colors[ii]; |
| michael@0 | 77 | var size = Math.pow(2, colors.length - ii - 1); |
| michael@0 | 78 | wtu.fillTexture(gl, tex, size, size, color.color, ii); |
| michael@0 | 79 | } |
| michael@0 | 80 | |
| michael@0 | 81 | var loc = gl.getUniformLocation(program, "lod"); |
| michael@0 | 82 | |
| michael@0 | 83 | for (var ii = 0; ii < colors.length; ++ii) { |
| michael@0 | 84 | gl.uniform1f(loc, ii); |
| michael@0 | 85 | var color = colors[ii]; |
| michael@0 | 86 | wtu.drawQuad(gl); |
| michael@0 | 87 | wtu.checkCanvas( |
| michael@0 | 88 | gl, color.color, |
| michael@0 | 89 | "256x256 texture drawn to 256x256 dest with lod = " + ii + |
| michael@0 | 90 | " should be " + color.name); |
| michael@0 | 91 | } |
| michael@0 | 92 | glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors."); |
| michael@0 | 93 | |
| michael@0 | 94 | successfullyParsed = true; |
| michael@0 | 95 | |
| michael@0 | 96 | </script> |
| michael@0 | 97 | <script>finishTest();</script> |
| michael@0 | 98 | |
| michael@0 | 99 | </body> |
| michael@0 | 100 | </html> |
| michael@0 | 101 | |
| michael@0 | 102 |
