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| ** Copyright (c) 2012 The Khronos Group Inc. |
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| |
| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>WebGL ShaderL Conformance Tests</title> |
| <link rel="stylesheet" href="../../resources/js-test-style.css"/> |
| <script src="../../resources/desktop-gl-constants.js" type="text/javascript"></script> |
| <script src="../../resources/js-test-pre.js"></script> |
| <script src="../resources/webgl-test.js"></script> |
| <script src="../resources/webgl-test-utils.js"></script> |
| </head> |
| <body> |
| <script id="vs" type="x-shader/x-fragment"> |
| attribute vec4 vPosition; |
| varying vec2 texCoord; |
| void main() { |
| gl_Position = vPosition; |
| texCoord = vPosition.xy * 0.5 + 0.5; |
| } |
| </script> |
| <script id="fs-green" type="x-shader/x-fragment"> |
| precision mediump float; |
| void main() { |
| gl_FragData[0] = vec4(0, 1, 0, 1); |
| } |
| </script> |
| <script id="fs-red" type="x-shader/x-fragment"> |
| precision mediump float; |
| void main() { |
| gl_FragData[0] = vec4(1, 0, 0, 1); |
| } |
| </script> |
| <div id="description"></div> |
| <div id="console"></div> |
| <canvas id="canvas" width="2" height="2"> </canvas> |
| <script> |
| "use strict"; |
| description("This test checks a few things about WebGL Shaders."); |
| |
| debug(""); |
| debug("Canvas.getContext"); |
| |
| var wtu = WebGLTestUtils; |
| var gl = wtu.create3DContext("canvas"); |
| if (!gl) { |
| testFailed("context does not exist"); |
| } else { |
| testPassed("context exists"); |
| |
| debug(""); |
| debug("Checking shaders."); |
| |
| // Create the shader object |
| var shader = gl.createShader(desktopGL['GEOMETRY_SHADER_ARB']); |
| assertMsg(shader == null, |
| "should not be able to create GEOMETRY shader"); |
| |
| checkDeferredCompliation() |
| } |
| |
| function checkDeferredCompliation() { |
| var vs = gl.createShader(gl.VERTEX_SHADER); |
| gl.shaderSource(vs, document.getElementById("vs").text); |
| gl.compileShader(vs); |
| var fs = gl.createShader(gl.FRAGMENT_SHADER); |
| // Compile the green shader |
| gl.shaderSource(fs, document.getElementById("fs-green").text); |
| gl.compileShader(fs); |
| // Load the red shader source but do NOT compile it |
| gl.shaderSource(fs, document.getElementById("fs-red").text); |
| var p = gl.createProgram(); |
| gl.attachShader(p, vs); |
| gl.attachShader(p, fs); |
| gl.bindAttribLocation(p, 0, "vPosition"); |
| gl.linkProgram(p); |
| gl.useProgram(p); |
| wtu.setupUnitQuad(gl, 0, 1); |
| wtu.drawQuad(gl); |
| wtu.checkCanvas(gl, [0, 255, 0, 255], "should be green"); |
| } |
| |
| debug(""); |
| var successfullyParsed = true; |
| |
| </script> |
| <script src="../../resources/js-test-post.js"></script> |
| |
| </body> |
| </html> |
