1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/canvas/test/webgl-conformance/conformance/glsl/misc/re-compile-re-link.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,151 @@
1.4 +<!--
1.5 +Copyright (c) 2012 The Chromium Authors. All rights reserved.
1.6 +Use of this source code is governed by a BSD-style license that can be
1.7 +found in the LICENSE file.
1.8 + -->
1.9 +<!DOCTYPE html>
1.10 +<html>
1.11 +<head>
1.12 +<meta charset="utf-8">
1.13 +<title>WebGL Re-Compile and Re-link Shader conformance test.</title>
1.14 +<link rel="stylesheet" href="../../../resources/js-test-style.css"/>
1.15 +<script src="../../../resources/js-test-pre.js"></script>
1.16 +<script src="../../resources/webgl-test.js"> </script>
1.17 +<script src="../../resources/webgl-test-utils.js"> </script>
1.18 +</head>
1.19 +<body>
1.20 +<canvas id="example" width="4" height="4" style="width: 40px; height: 30px;"></canvas>
1.21 +<div id="description"></div>
1.22 +<div id="console"></div>
1.23 +<script id="vshader" type="x-shader/x-vertex">
1.24 +attribute float column;
1.25 +attribute float height;
1.26 +uniform float position;
1.27 +void main() {
1.28 + gl_Position = vec4(mod(column - position, 1.0) * 2.0 - 1.0, height, 0, 1);
1.29 +}
1.30 +</script>
1.31 +
1.32 +<script id="fshader1" type="x-shader/x-fragment">
1.33 +precision mediump float;
1.34 +void main() {
1.35 + gl_FragColor = vec4(1,0,0,1);
1.36 +}
1.37 +</script>
1.38 +<script id="fshader2" type="x-shader/x-fragment">
1.39 +precision mediump float;
1.40 +uniform float foobar;
1.41 +void main() {
1.42 + gl_FragColor = vec4(1,0,foobar,1);
1.43 +}
1.44 +</script>
1.45 +<script id="vshaderB" type="not-js">
1.46 +attribute vec2 position;
1.47 +varying vec2 v_texCoord;
1.48 +void main() {
1.49 + gl_Position = vec4(position, 0, 1);
1.50 + v_texCoord = vec2(position * 0.5 + 0.5);
1.51 +}
1.52 +</script>
1.53 +<script id="fshaderB" type="not-js">
1.54 +precision mediump float;
1.55 +varying vec2 v_texCoord;
1.56 +uniform sampler2D tex;
1.57 +void main() {
1.58 + gl_FragColor = texture2D(tex, v_texCoord);
1.59 +}
1.60 +</script>
1.61 +
1.62 +<script>
1.63 +description(document.title);
1.64 +var wtu = WebGLTestUtils;
1.65 +var gl = wtu.create3DContext("example");
1.66 +
1.67 +var vsSource = document.getElementById("vshader").text;
1.68 +var fs1Source = document.getElementById("fshader1").text;
1.69 +var fs2Source = document.getElementById("fshader2").text;
1.70 +
1.71 +var vsSourceB = document.getElementById("vshaderB").text;
1.72 +var fsSourceB = document.getElementById("fshaderB").text;
1.73 +
1.74 +var vShader = gl.createShader(gl.VERTEX_SHADER);
1.75 +var fShader = gl.createShader(gl.FRAGMENT_SHADER);
1.76 +
1.77 +var vShaderB = gl.createShader(gl.VERTEX_SHADER);
1.78 +var fShaderB = gl.createShader(gl.FRAGMENT_SHADER);
1.79 +
1.80 +var program = gl.createProgram();
1.81 +var programB = gl.createProgram();
1.82 +
1.83 +gl.attachShader(program, vShader);
1.84 +gl.attachShader(program, fShader);
1.85 +
1.86 +gl.attachShader(programB, vShaderB);
1.87 +gl.attachShader(programB, fShaderB);
1.88 +
1.89 +var success;
1.90 +var shader;
1.91 +
1.92 +function checkShaderStatus(s) {
1.93 + shader = s;
1.94 + shouldBeTrue("success = gl.getShaderParameter(shader, gl.COMPILE_STATUS)");
1.95 + if (!success) {
1.96 + debug("error: " + gl.getShaderInfoLog());
1.97 + }
1.98 +}
1.99 +
1.100 +var prg;
1.101 +function checkProgramStatus(p) {
1.102 + prg = p;
1.103 + shouldBeTrue("success = gl.getProgramParameter(prg, gl.LINK_STATUS)");
1.104 + if (!success) {
1.105 + debug("error: " + gl.getProgramInfoLog(prg));
1.106 + }
1.107 +}
1.108 +
1.109 +for (var i = 0; i < 10; ++i) {
1.110 + gl.shaderSource(vShader, vsSource);
1.111 + gl.compileShader(vShader);
1.112 + checkShaderStatus(vShader)
1.113 + gl.shaderSource(fShader, fs1Source);
1.114 + gl.compileShader(fShader);
1.115 + checkShaderStatus(fShader)
1.116 +
1.117 + gl.linkProgram(program);
1.118 + checkProgramStatus(program)
1.119 + gl.useProgram(program);
1.120 +
1.121 + gl.shaderSource(vShaderB, vsSourceB);
1.122 + gl.compileShader(vShaderB);
1.123 + checkShaderStatus(vShaderB)
1.124 + gl.shaderSource(fShaderB, fsSourceB);
1.125 + gl.compileShader(fShaderB);
1.126 + checkShaderStatus(fShaderB)
1.127 +
1.128 + gl.linkProgram(programB);
1.129 + checkProgramStatus(programB)
1.130 +
1.131 + gl.useProgram(programB);
1.132 +}
1.133 +
1.134 +for (var i = 0; i < 10; ++i) {
1.135 + // Now change the fragment shader
1.136 + gl.shaderSource(fShader, fs2Source);
1.137 + gl.compileShader(fShader);
1.138 + checkShaderStatus(fShader)
1.139 +
1.140 + // And re-link
1.141 + gl.linkProgram(program);
1.142 + checkProgramStatus(program)
1.143 +}
1.144 +
1.145 +glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors");
1.146 +
1.147 +successfullyParsed = true;
1.148 +</script>
1.149 +<script>finishTest();</script>
1.150 +
1.151 +</body>
1.152 +</html>
1.153 +
1.154 +
