angle-dx-variable-bug.html

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Copyright (c) 2019 The Khronos Group Inc.

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<!DOCTYPE html>

<html>

<head>

<meta charset="utf-8">

<title>ANGLE D3D11 Bug - Variables beginning with "dx_"</title>

<link rel="stylesheet" href="../../../resources/js-test-style.css"/>

<script src="../../../js/js-test-pre.js"></script>

<script src="../../../js/webgl-test-utils.js"></script>

</head>

<body>

<script id="vs" type="x-shader/x-fragment">

precision mediump float;

attribute vec4 position;

varying float dx_var;

void main() {

  gl_Position = position;

  dx_var = position.x;

</script>

<script id="fs" type="x-shader/x-fragment">

precision mediump float;

varying float dx_var;

void main() {

  gl_FragColor = vec4(dx_var, 0, 0, 1);

</script>

<div id="description"></div>

<div id="console"></div>

<canvas id="canvas" width="2" height="2"> </canvas>

<script>

"use strict";

// See http://crbug.com/371868 for original failing case.

description("This test checks an ANGLE D3D11 shader compiler error.");

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 shader compilation and linking.");

  checkCompilation()

function checkCompilation() {

  var vs = gl.createShader(gl.VERTEX_SHADER);

  gl.shaderSource(vs, document.getElementById("vs").text);

  gl.compileShader(vs);

  if (!gl.getShaderParameter(vs, gl.COMPILE_STATUS)) {

      testFailed("Vertex Shader failed to compile: " + gl.getShaderInfoLog(vs));

      return;

  var fs = gl.createShader(gl.FRAGMENT_SHADER);

  gl.shaderSource(fs, document.getElementById("fs").text);

  gl.compileShader(fs);

  if (!gl.getShaderParameter(fs, gl.COMPILE_STATUS)) {

      testFailed("Fragment Shader failed to compile: " + gl.getShaderInfoLog(fs));

      return;

  var p = gl.createProgram();

  gl.attachShader(p, vs);

  gl.attachShader(p, fs);

  gl.linkProgram(p);

  if (!gl.getProgramParameter(p, gl.LINK_STATUS)) {

      testFailed("Program failed to link: " + gl.getProgramInfoLog(p));

      return;

  testPassed("Linked Successfully");

debug("");

var successfullyParsed = true;

</script>

<script src="../../../js/js-test-post.js"></script>

</body>

</html>