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shader-with-global-variable-precision-mismatch.html (3084B)

      1 <!--
      2 Copyright (c) 2019 The Khronos Group Inc.
      3 Use of this source code is governed by an MIT-style license that can be
      4 found in the LICENSE.txt file.
      5 -->
      6 
      7 <!DOCTYPE html>
      8 <html>
      9 <head>
     10 <meta charset="utf-8">
     11 <title>WebGL GLSL Conformance Tests</title>
     12 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
     13 <link rel="stylesheet" href="../../../resources/glsl-feature-tests.css"/>
     14 <script src="../../../js/js-test-pre.js"></script>
     15 <script src="../../../js/webgl-test-utils.js"></script>
     16 <script src="../../../js/glsl-conformance-test.js"></script>
     17 </head>
     18 <body>
     19 <div id="description"></div>
     20 <div id="console"></div>
     21 <script id="fshaderWithMediumpGlobal" type="text/something-not-javascript">
     22 // There is no default float precision in fragment shaders, so specify mediump.
     23 precision mediump float;
     24 
     25 uniform vec4 foo;
     26 
     27 void main()
     28 {
     29    gl_FragColor = foo;
     30 }
     31 </script>
     32 <script id="fshaderWithMediumpGlobalInt" type="text/something-not-javascript">
     33 // Default precision for int in fragment shaders is mediump.
     34 uniform int foo;
     35 
     36 void main()
     37 {
     38    gl_FragColor = vec4(foo, 0, 0, 1);
     39 }
     40 </script>
     41 <script id="fshaderWithMediumpGlobalStruct" type="text/something-not-javascript">
     42 // There is no default float precision in fragment shaders, so specify mediump.
     43 precision mediump float;
     44 
     45 struct foo
     46 {
     47   vec4 bar;
     48 };
     49 
     50 uniform foo baz;
     51 
     52 void main()
     53 {
     54    gl_FragColor = baz.bar;
     55 }
     56 </script>
     57 <script id="vshaderWithHighpGlobal" type="x-shader/x-vertex">
     58 // Default precision for vertex shaders is highp.
     59 uniform vec4 foo;
     60 
     61 void main() {
     62    gl_Position = foo;
     63 }
     64 </script>
     65 <script id="vshaderWithHighpGlobalInt" type="x-shader/x-vertex">
     66 // Default precision for int in vertex shaders is highp.
     67 uniform int foo;
     68 
     69 void main() {
     70    gl_Position = vec4(foo, 0, 0, 1);
     71 }
     72 </script>
     73 <script id="vshaderWithHighpGlobalStruct" type="x-shader/x-vertex">
     74 // Default precision for vertex shaders is highp.
     75 struct foo
     76 {
     77   vec4 bar;
     78 };
     79 
     80 uniform foo baz;
     81 
     82 void main()
     83 {
     84    gl_Position = baz.bar;
     85 }
     86 </script>
     87 <script>
     88 "use strict";
     89 description("Checks shaders with global variables and precision qualifier mismatch.");
     90 
     91 var wtu = WebGLTestUtils;
     92 
     93 var glslTests = [];
     94 
     95 glslTests.push({
     96  vShaderId: 'vshaderWithHighpGlobal',
     97  vShaderSuccess: true,
     98  fShaderId: 'fshaderWithMediumpGlobal',
     99  fShaderSuccess: true,
    100  linkSuccess: false,
    101  passMsg: "mismatching precision for uniforms causes link error (as expected)",
    102 });
    103 
    104 glslTests.push({
    105  vShaderId: 'vshaderWithHighpGlobalInt',
    106  vShaderSuccess: true,
    107  fShaderId: 'fshaderWithMediumpGlobalInt',
    108  fShaderSuccess: true,
    109  linkSuccess: false,
    110  passMsg: "mismatching precision for int uniforms with default precision causes link error (as expected)",
    111 });
    112 
    113 glslTests.push({
    114  vShaderId: 'vshaderWithHighpGlobalStruct',
    115  vShaderSuccess: true,
    116  fShaderId: 'fshaderWithMediumpGlobalStruct',
    117  fShaderSuccess: true,
    118  linkSuccess: false,
    119  passMsg: "mismatching precision for structure uniforms causes link error (as expected)",
    120 });
    121 
    122 GLSLConformanceTester.runTests(glslTests);
    123 
    124 debug("");
    125 var successfullyParsed = true;
    126 </script>
    127 </body>
    128 </html>