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comparison: content/canvas/test/webgl-conformance/conformance/glsl/samplers/glsl-function-texture2dproj.html
content/canvas/test/webgl-conformance/conformance/glsl/samplers/glsl-function-texture2dproj.html
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| 1 <!-- | |
| 2 Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
| 3 Use of this source code is governed by a BSD-style license that can be | |
| 4 found in the LICENSE file. | |
| 5 --> | |
| 6 <!DOCTYPE html> | |
| 7 <html> | |
| 8 <head> | |
| 9 <meta charset="utf-8"> | |
| 10 <title>WebGL texture2D GLSL conformance test.</title> | |
| 11 <link rel="stylesheet" href="../../../resources/js-test-style.css"/> | |
| 12 <link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/> | |
| 13 <script src="../../../resources/js-test-pre.js"></script> | |
| 14 <script src="../../resources/webgl-test.js"> </script> | |
| 15 <script src="../../resources/webgl-test-utils.js"> </script> | |
| 16 </head> | |
| 17 <body> | |
| 18 <canvas id="example" width="32" height="32"></canvas> | |
| 19 <div id="description"></div> | |
| 20 <div id="console"></div> | |
| 21 <script id="vshader0" type="x-shader/x-vertex"> | |
| 22 attribute vec4 vPosition; | |
| 23 attribute vec2 texCoord0; | |
| 24 varying vec2 texCoord; | |
| 25 void main() { | |
| 26 gl_Position = vPosition; | |
| 27 texCoord = texCoord0; | |
| 28 } | |
| 29 </script> | |
| 30 <script id="fshader0" type="x-shader/x-vertex"> | |
| 31 precision mediump float; | |
| 32 uniform sampler2D tex; | |
| 33 uniform float divisor; | |
| 34 varying vec2 texCoord; | |
| 35 void main() { | |
| 36 gl_FragData[0] = texture2DProj(tex, vec3(texCoord, divisor)); | |
| 37 } | |
| 38 </script> | |
| 39 <script id="vshader1" type="x-shader/x-vertex"> | |
| 40 attribute vec4 vPosition; | |
| 41 attribute vec2 texCoord0; | |
| 42 varying vec2 texCoord; | |
| 43 void main() { | |
| 44 gl_Position = vPosition; | |
| 45 texCoord = texCoord0; | |
| 46 } | |
| 47 </script> | |
| 48 <script id="fshader1" type="x-shader/x-vertex"> | |
| 49 precision mediump float; | |
| 50 uniform sampler2D tex; | |
| 51 uniform float divisor; | |
| 52 varying vec2 texCoord; | |
| 53 void main() { | |
| 54 gl_FragData[0] = texture2DProj(tex, vec4(texCoord, 123.0, divisor)); | |
| 55 } | |
| 56 </script> | |
| 57 <script> | |
| 58 description("tests GLSL texture2DProj function with"); | |
| 59 | |
| 60 var wtu = WebGLTestUtils; | |
| 61 var gl = wtu.create3DContext("example", {antialias: false}); | |
| 62 | |
| 63 wtu.setupUnitQuad(gl, 0, 1); | |
| 64 var tex = gl.createTexture(); | |
| 65 gl.bindTexture(gl.TEXTURE_2D, tex); | |
| 66 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST); | |
| 67 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST); | |
| 68 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT); | |
| 69 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT); | |
| 70 | |
| 71 var c = document.createElement("canvas"); | |
| 72 c.width = 16; | |
| 73 c.height = 16; | |
| 74 var ctx = c.getContext("2d"); | |
| 75 ctx.fillStyle = "rgb(0,255,0)"; | |
| 76 ctx.fillRect(0, 0, 16, 16); | |
| 77 ctx.fillStyle = "rgb(0,0,255)"; | |
| 78 ctx.fillRect(0, 0, 8, 8); | |
| 79 ctx.fillRect(8, 8, 8, 8); | |
| 80 | |
| 81 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, c); | |
| 82 | |
| 83 for (var ss = 0; ss < 2; ++ss) { | |
| 84 debug(""); | |
| 85 debug(ss ? "testing vec4 version" : "testing vec3 version"); | |
| 86 var program = wtu.setupProgram( | |
| 87 gl, ['vshader' + ss, 'fshader' + ss], | |
| 88 ['vPosition', 'texCoord0'], [0, 1]); | |
| 89 gl.useProgram(program); | |
| 90 var loc = gl.getUniformLocation(program, "divisor"); | |
| 91 | |
| 92 for (var ii = 0; ii < 3; ++ii) { | |
| 93 var denominator = Math.pow(2, ii); | |
| 94 gl.uniform1f(loc, 1 / denominator); | |
| 95 wtu.drawQuad(gl); | |
| 96 var size = 16 / denominator; | |
| 97 for (var yy = 0; yy < 32; yy += size) { | |
| 98 for (var xx = 0; xx < 32; xx += size) { | |
| 99 var odd = (xx / size + yy / size) % 2; | |
| 100 var color = odd ? [0, 255, 0, 255] : [0, 0, 255, 255]; | |
| 101 var msg = "" + xx + ", " + yy + ", " + size + ", " + size + " should be " + (odd ? "green" : "blue"); | |
| 102 wtu.checkCanvasRect(gl, xx, yy, size, size, color, msg); | |
| 103 } | |
| 104 } | |
| 105 } | |
| 106 } | |
| 107 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors."); | |
| 108 | |
| 109 successfullyParsed = true; | |
| 110 | |
| 111 </script> | |
| 112 <script>finishTest();</script> | |
| 113 | |
| 114 </body> | |
| 115 </html> | |
| 116 | |
| 117 |
