LayoutTests/webgl/1.0.3/resources/webgl_test_files/conformance/uniforms/gl-uniform-unused-array-elements-get-truncated.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 uniform unused array elements get truncated Conformance Test</title>
 <link rel="stylesheet" href="../../resources/js-test-style.css"/>
 <script src="../../resources/js-test-pre.js"></script>
 <script src="../resources/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="fshader-max" type="x-shader/x-fragment">
     precision mediump float;
     uniform vec4 colora[$(numUniformVectors)];
     void main()
     {
         gl_FragColor = vec4(colora[$(usedUniformVector)]);
     }
 </script>
 <script>
 "use strict";
 description();
 debug("");
 var wtu = WebGLTestUtils;
 var gl = wtu.create3DContext("example");
 var vSrc = wtu.getScript("vshader");
 var uniforms;
 // This test is to test drivers the have bugs related to optimizing
 // an array of uniforms when only 1 of those uniforms is used.
 debug("");
 var maxUniformVectors = gl.getParameter(gl.MAX_FRAGMENT_UNIFORM_VECTORS);
 var tests = [
  { desc: "using 5th element",
    maxUniformVectors: maxUniformVectors,
    numUniformVectors: maxUniformVectors * 2,
    usedUniformVector: 5,
    shader: "fshader-max",
    color: [0, 1, 0, 1],
    arrayName: "colora",
  },
 ];

 // According to the spec unused array elements must be truncated.
 var requiredUniformLocationsExist;
 function testUniformIssues(testIndex) {
   var test = tests[testIndex];
   debug("");
   debug(test.desc);
   var fSrc = test.source;
   if (!fSrc) {
     fSrc = wtu.replaceParams(wtu.getScript(test.shader), test);
   }

   var consoleElem = document.getElementById("console");
   wtu.addShaderSource(
       consoleElem, "vertex shader", vSrc);
   wtu.addShaderSource(
       consoleElem, "fragment shader", fSrc);

   var program = wtu.loadProgram(gl, vSrc, fSrc);
   gl.useProgram(program);
   uniforms = wtu.getUniformMap(gl, program);
   shouldBe('uniforms["' + test.arrayName + '[0]"].size', (test.usedUniformVector + 1).toString());

   requiredUniformLocationsExist = true;
   for (var ii = 0; ii <= test.usedUniformVector + 1; ++ii) {
     var name = test.arrayName + "[" + ii + "]";
     var colorLocation = gl.getUniformLocation(program, name);
     if (ii <= test.usedUniformVector) {
       if (!colorLocation) {
         requiredUniformLocationsExist = false
       }
     } else {
       if (colorLocation) {
         testFailed("uniform array was not truncated as specified in OpenGL ES 2.0.25 section 2.10.4");
       }
     }
   }
   shouldBeTrue("requiredUniformLocationsExist");
 }

 var testIndex = 0;
 function runNextTest() {
   testUniformIssues(testIndex++);
   if (testIndex < tests.length) {
     setTimeout(runNextTest, 0);
   } else {
     wtu.glErrorShouldBe(gl, gl.NO_ERROR, "there should be no errors");
     debug("");
     finishTest();
   }
 }
 runNextTest();

 var successfullyParsed = true;

 </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 uniform unused array elements get truncated Conformance Test</title>
	<link rel="stylesheet" href="../../resources/js-test-style.css"/>
	<script src="../../resources/js-test-pre.js"></script>
	<script src="../resources/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="fshader-max" type="x-shader/x-fragment">
	precision mediump float;
	uniform vec4 colora[$(numUniformVectors)];
	void main()
	{
	gl_FragColor = vec4(colora[$(usedUniformVector)]);
	}
	</script>
	<script>
	"use strict";
	description();
	debug("");
	var wtu = WebGLTestUtils;
	var gl = wtu.create3DContext("example");
	var vSrc = wtu.getScript("vshader");
	var uniforms;
	// This test is to test drivers the have bugs related to optimizing
	// an array of uniforms when only 1 of those uniforms is used.
	debug("");
	var maxUniformVectors = gl.getParameter(gl.MAX_FRAGMENT_UNIFORM_VECTORS);
	var tests = [
	{ desc: "using 5th element",
	maxUniformVectors: maxUniformVectors,
	numUniformVectors: maxUniformVectors * 2,
	usedUniformVector: 5,
	shader: "fshader-max",
	color: [0, 1, 0, 1],
	arrayName: "colora",
	},
	];

	// According to the spec unused array elements must be truncated.
	var requiredUniformLocationsExist;
	function testUniformIssues(testIndex) {
	var test = tests[testIndex];
	debug("");
	debug(test.desc);
	var fSrc = test.source;
	if (!fSrc) {
	fSrc = wtu.replaceParams(wtu.getScript(test.shader), test);
	}

	var consoleElem = document.getElementById("console");
	wtu.addShaderSource(
	consoleElem, "vertex shader", vSrc);
	wtu.addShaderSource(
	consoleElem, "fragment shader", fSrc);

	var program = wtu.loadProgram(gl, vSrc, fSrc);
	gl.useProgram(program);
	uniforms = wtu.getUniformMap(gl, program);
	shouldBe('uniforms["' + test.arrayName + '[0]"].size', (test.usedUniformVector + 1).toString());

	requiredUniformLocationsExist = true;
	for (var ii = 0; ii <= test.usedUniformVector + 1; ++ii) {
	var name = test.arrayName + "[" + ii + "]";
	var colorLocation = gl.getUniformLocation(program, name);
	if (ii <= test.usedUniformVector) {
	if (!colorLocation) {
	requiredUniformLocationsExist = false
	}
	} else {
	if (colorLocation) {
	testFailed("uniform array was not truncated as specified in OpenGL ES 2.0.25 section 2.10.4");
	}
	}
	}
	shouldBeTrue("requiredUniformLocationsExist");
	}

	var testIndex = 0;
	function runNextTest() {
	testUniformIssues(testIndex++);
	if (testIndex < tests.length) {
	setTimeout(runNextTest, 0);
	} else {
	wtu.glErrorShouldBe(gl, gl.NO_ERROR, "there should be no errors");
	debug("");
	finishTest();
	}
	}
	runNextTest();

	var successfullyParsed = true;

	</script>
	</body>
	</html>