LayoutTests/webgl/2.0.0/resources/webgl_test_files/conformance/glsl/variables/glsl-built-ins.html - WebKit - Git at Google

 <!--

 /*
 ** Copyright (c) 2012 The Khronos Group Inc.
 **
 ** Permission is hereby granted, free of charge, to any person obtaining a
 ** copy of this software and/or associated documentation files (the
 ** "Materials"), to deal in the Materials without restriction, including
 ** without limitation the rights to use, copy, modify, merge, publish,
 ** distribute, sublicense, and/or sell copies of the Materials, and to
 ** permit persons to whom the Materials are furnished to do so, subject to
 ** the following conditions:
 **
 ** The above copyright notice and this permission notice shall be included
 ** in all copies or substantial portions of the Materials.
 **
 ** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 ** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 ** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 ** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 ** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 ** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 ** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
 */

 -->

 <!DOCTYPE html>
 <html>
 <head>
 <meta charset="utf-8">
 <title>WebGL GLSL built in variables Conformance Test</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>
 </head>
 <body>
 <div id="description"></div>
 <div id="console"></div>
 <canvas id="example" width="2" height="2"> </canvas>
 <script id="vshader" type="x-shader/x-vertex">
 attribute vec4 a_position;
 void main()
 {
     gl_Position = a_position;
 }
 </script>
 <script id="vshaderCheck" type="x-shader/x-vertex">
 attribute vec4 a_position;
 varying vec4 v_color;
 void main()
 {
     gl_Position = a_position;
     v_color = (gl_$(name) == $(max)) ? vec4(0,1,0,1) : vec4(1,0,0,1);
 }
 </script>
 <script id="fshader" type="x-shader/x-fragment">
 precision mediump float;
 varying vec4 v_color;
 void main()
 {
     gl_FragColor = v_color;
 }
 </script>
 <script id="fshaderCheck" type="x-shader/x-fragment">
 precision mediump float;
 void main()
 {
     gl_FragColor = (gl_$(name) == $(max)) ? vec4(0,1,0,1) : vec4(1,0,0,1);
 }
 </script>
 <script>
 "use strict";
 description();
 var wtu = WebGLTestUtils;
 var gl = wtu.create3DContext("example");
 var contextVersion = wtu.getDefault3DContextVersion();

 var variables = [
   { name: 'MaxVertexAttribs',             min:   8, },
   { name: 'MaxVertexUniformVectors',      min: 128, },
   { name: 'MaxVaryingVectors',            min:   8, },
   { name: 'MaxVertexTextureImageUnits',   min:   0, },
   { name: 'MaxCombinedTextureImageUnits', min:   8, },
   { name: 'MaxTextureImageUnits',         min:   8, },
   { name: 'MaxFragmentUniformVectors',    min:  16, },
 ];

 if (contextVersion <= 1) {
   variables.push({ name: 'MaxDrawBuffers', min: 1, max: 1});
 } else {
   variables.push({ name: 'MaxDrawBuffers', min: 1, });
 }

 var toUnderscore = function(str) {
   return str.replace(/([a-z])([A-Z])/g, function (g) { return g[0] + "_" + g[1].toUpperCase() }).toUpperCase();
 };

 var shaderPairs = [
    [wtu.getScript("vshader"), wtu.getScript("fshaderCheck")],
    [wtu.getScript("vshaderCheck"), wtu.getScript("fshader")],
 ];

 wtu.setupUnitQuad(gl);

 variables.forEach(function(variable) {
   debug("");
   debug("Testing gl_" + variable.name);
   if (!variable.max) {
     variable.max = gl.getParameter(gl[toUnderscore(variable.name)]);
     expectTrue(variable.max >= variable.min, "gl.getParameter(gl." + toUnderscore(variable.name) + ") >= " + variable.min);
   }
   shaderPairs.forEach(function(pair) {
     var shaders = [wtu.replaceParams(pair[0], variable), wtu.replaceParams(pair[1], variable)];
     var program = wtu.setupProgram(gl, shaders, ["a_position"], undefined, true);
     wtu.clearAndDrawUnitQuad(gl);
     wtu.checkCanvas(gl, [0, 255, 0, 255], "should be green");
   });
 });

 var successfullyParsed = true;
 </script>
 <script src="../../../js/js-test-post.js"></script>
 </body>
 </html>
	<!--

	/*
	** Copyright (c) 2012 The Khronos Group Inc.
	**
	** Permission is hereby granted, free of charge, to any person obtaining a
	** copy of this software and/or associated documentation files (the
	** "Materials"), to deal in the Materials without restriction, including
	** without limitation the rights to use, copy, modify, merge, publish,
	** distribute, sublicense, and/or sell copies of the Materials, and to
	** permit persons to whom the Materials are furnished to do so, subject to
	** the following conditions:
	**
	** The above copyright notice and this permission notice shall be included
	** in all copies or substantial portions of the Materials.
	**
	** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
	** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
	** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
	** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
	** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
	*/

	-->

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<title>WebGL GLSL built in variables Conformance Test</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>
	</head>
	<body>
	<div id="description"></div>
	<div id="console"></div>
	<canvas id="example" width="2" height="2"> </canvas>
	<script id="vshader" type="x-shader/x-vertex">
	attribute vec4 a_position;
	void main()
	{
	gl_Position = a_position;
	}
	</script>
	<script id="vshaderCheck" type="x-shader/x-vertex">
	attribute vec4 a_position;
	varying vec4 v_color;
	void main()
	{
	gl_Position = a_position;
	v_color = (gl_$(name) == $(max)) ? vec4(0,1,0,1) : vec4(1,0,0,1);
	}
	</script>
	<script id="fshader" type="x-shader/x-fragment">
	precision mediump float;
	varying vec4 v_color;
	void main()
	{
	gl_FragColor = v_color;
	}
	</script>
	<script id="fshaderCheck" type="x-shader/x-fragment">
	precision mediump float;
	void main()
	{
	gl_FragColor = (gl_$(name) == $(max)) ? vec4(0,1,0,1) : vec4(1,0,0,1);
	}
	</script>
	<script>
	"use strict";
	description();
	var wtu = WebGLTestUtils;
	var gl = wtu.create3DContext("example");
	var contextVersion = wtu.getDefault3DContextVersion();

	var variables = [
	{ name: 'MaxVertexAttribs', min: 8, },
	{ name: 'MaxVertexUniformVectors', min: 128, },
	{ name: 'MaxVaryingVectors', min: 8, },
	{ name: 'MaxVertexTextureImageUnits', min: 0, },
	{ name: 'MaxCombinedTextureImageUnits', min: 8, },
	{ name: 'MaxTextureImageUnits', min: 8, },
	{ name: 'MaxFragmentUniformVectors', min: 16, },
	];

	if (contextVersion <= 1) {
	variables.push({ name: 'MaxDrawBuffers', min: 1, max: 1});
	} else {
	variables.push({ name: 'MaxDrawBuffers', min: 1, });
	}

	var toUnderscore = function(str) {
	return str.replace(/([a-z])([A-Z])/g, function (g) { return g[0] + "_" + g[1].toUpperCase() }).toUpperCase();
	};

	var shaderPairs = [
	[wtu.getScript("vshader"), wtu.getScript("fshaderCheck")],
	[wtu.getScript("vshaderCheck"), wtu.getScript("fshader")],
	];

	wtu.setupUnitQuad(gl);

	variables.forEach(function(variable) {
	debug("");
	debug("Testing gl_" + variable.name);
	if (!variable.max) {
	variable.max = gl.getParameter(gl[toUnderscore(variable.name)]);
	expectTrue(variable.max >= variable.min, "gl.getParameter(gl." + toUnderscore(variable.name) + ") >= " + variable.min);
	}
	shaderPairs.forEach(function(pair) {
	var shaders = [wtu.replaceParams(pair[0], variable), wtu.replaceParams(pair[1], variable)];
	var program = wtu.setupProgram(gl, shaders, ["a_position"], undefined, true);
	wtu.clearAndDrawUnitQuad(gl);
	wtu.checkCanvas(gl, [0, 255, 0, 255], "should be green");
	});
	});

	var successfullyParsed = true;
	</script>
	<script src="../../../js/js-test-post.js"></script>
	</body>
	</html>