promoted-extensions-in-shaders.html

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Copyright (c) 2019 The Khronos Group Inc.

Use of this source code is governed by an MIT-style license that can be

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<meta charset="utf-8">

<title>Extensions promoted to core should not be possible to use in shaders</title>

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

<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>

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

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

<script src="../../js/glsl-conformance-test.js"></script>

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<body>

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

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

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

#extension $(ext) : require

precision mediump float;

void main() {

    gl_FragColor = vec4(0.0, 1.0, 0.0, 1.0);

</script>

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

precision mediump float;

void main() {

#ifdef $(ext)

    gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0);

#else

    gl_FragColor = vec4(0.0, 1.0, 0.0, 1.0);

#endif

</script>

<script id="fragShader300Require" type="x-shader/x-fragment">#version 300 es

#extension $(ext) : require

precision mediump float;

out vec4 my_FragColor;

void main() {

    my_FragColor = vec4(0.0, 1.0, 0.0, 1.0);

</script>

<script id="fragShader300Ifdef" type="x-shader/x-fragment">#version 300 es

precision mediump float;

out vec4 my_FragColor;

void main() {

#ifdef $(ext)

    my_FragColor = vec4(1.0, 0.0, 0.0, 1.0);

#else

    my_FragColor = vec4(0.0, 1.0, 0.0, 1.0);

#endif

</script>

<script type="application/javascript">

"use strict";

description();

var wtu = WebGLTestUtils;

var shaderTemplateRequire = wtu.getScript('fragShaderRequire');

var shaderTemplate300Require = wtu.getScript('fragShader300Require');

var shaderTemplateIfdef = wtu.getScript('fragShaderIfdef');

var shaderTemplate300Ifdef = wtu.getScript('fragShader300Ifdef');

var extensions = [

    'GL_EXT_draw_buffers',

    'GL_EXT_frag_depth',

    'GL_EXT_shader_texture_lod',

    'GL_OES_standard_derivatives'

];

var tests = [];

for (var i = 0; i < extensions.length; ++i) {

    var shaderSrcRequire = wtu.replaceParams(shaderTemplateRequire, {'ext': extensions[i]});

    tests.push({

        fShaderSource: shaderSrcRequire,

        fShaderSuccess: false,

        linkSuccess: false,

        passMsg: "ESSL 1.00 Fragment shader that requires " + extensions[i] + " should not compile."

});

    var shaderSrc300Require = wtu.replaceParams(shaderTemplate300Require, {'ext': extensions[i]});

    tests.push({

        fShaderSource: shaderSrc300Require,

        fShaderSuccess: false,

        linkSuccess: false,

        passMsg: "ESSL 3.00 Fragment shader that requires " + extensions[i] + " should not compile."

});

    var shaderSrcIfdef = wtu.replaceParams(shaderTemplateIfdef, {'ext': extensions[i]});

    tests.push({

        fShaderSource: shaderSrcIfdef,

        fShaderSuccess: true,

        linkSuccess: true,

        render: true,

        passMsg: extensions[i] + " should not be defined in ESSL 1.00 fragment shader."

});

    var shaderSrc300Ifdef = wtu.replaceParams(shaderTemplate300Ifdef, {'ext': extensions[i]});

    tests.push({

        fShaderSource: shaderSrc300Ifdef,

        fShaderSuccess: true,

        linkSuccess: true,

        render: true,

        passMsg: extensions[i] + " should not be defined in ESSL 3.00 fragment shader."

});

GLSLConformanceTester.runTests(tests, 2);

var successfullyParsed = true;

</script>

</body>

</html>