LayoutTests/webgl/2.0.0/resources/webgl_test_files/conformance/limits/gl-line-width.html - WebKit - Git at Google

 <!--

 /*
 ** Copyright (c) 2015 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>Verify that line width limits are enforced.</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>
 <canvas id="example" width="4" height="4" style="width: 40px; height: 30px;"></canvas>
 <div id="description"></div>
 <div id="console"></div>
 <script>
 "use strict";
 description(document.title);
 var wtu = WebGLTestUtils;
 var gl = wtu.create3DContext("example");

 // Query the line width range
 var lineWidthRange = gl.getParameter(gl.ALIASED_LINE_WIDTH_RANGE);
 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors.");

 if (lineWidthRange[0] > 1 || lineWidthRange[1] < 1)
   testFailed("Line width range must include width 1");

 // Zero, negative, or NaN values should cause an error and leave the value unchanged.
 var curLineWidth = gl.getParameter(gl.LINE_WIDTH);
 gl.lineWidth(0);
 wtu.glErrorShouldBe(gl, gl.INVALID_VALUE, "Should not be able to set lineWidth to zero");
 shouldBe('gl.getParameter(gl.LINE_WIDTH)', 'curLineWidth'); // Previous value should be preserved

 gl.lineWidth(-1);
 wtu.glErrorShouldBe(gl, gl.INVALID_VALUE, "Should not be able to set lineWidth to a negative value");
 shouldBe('gl.getParameter(gl.LINE_WIDTH)', 'curLineWidth'); // Previous value should be preserved

 gl.lineWidth(NaN);
 wtu.glErrorShouldBe(gl, gl.INVALID_VALUE, "Should not be able to set lineWidth to NaN");
 shouldBe('gl.getParameter(gl.LINE_WIDTH)', 'curLineWidth'); // Previous value should be preserved

 // Check that the line width can be set to the valid range.
 gl.lineWidth(lineWidthRange[1]);
 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be able to set lineWidth to the max supported value");
 shouldBe('gl.getParameter(gl.LINE_WIDTH)', 'lineWidthRange[1]');

 gl.lineWidth(lineWidthRange[0]);
 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be able to set lineWidth to the min supported value");
 shouldBe('gl.getParameter(gl.LINE_WIDTH)', 'lineWidthRange[0]');

 // Checks that the line width can be set outside the supported range without error,
 // and the unclamped value can be queried back.
 // Yes, this is actually what the spec says should happen.
 // See: https://www.khronos.org/opengles/sdk/docs/man3/html/glLineWidth.xhtml
 gl.lineWidth(lineWidthRange[1]+1);
 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be able to set lineWidth to the above max supported value");
 shouldBe('gl.getParameter(gl.LINE_WIDTH)', 'lineWidthRange[1]+1');

 var successfullyParsed = true;

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

 </body>
 </html>
	<!--

	/*
	** Copyright (c) 2015 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>Verify that line width limits are enforced.</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>
	<canvas id="example" width="4" height="4" style="width: 40px; height: 30px;"></canvas>
	<div id="description"></div>
	<div id="console"></div>
	<script>
	"use strict";
	description(document.title);
	var wtu = WebGLTestUtils;
	var gl = wtu.create3DContext("example");

	// Query the line width range
	var lineWidthRange = gl.getParameter(gl.ALIASED_LINE_WIDTH_RANGE);
	wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors.");

	if (lineWidthRange[0] > 1 \|\| lineWidthRange[1] < 1)
	testFailed("Line width range must include width 1");

	// Zero, negative, or NaN values should cause an error and leave the value unchanged.
	var curLineWidth = gl.getParameter(gl.LINE_WIDTH);
	gl.lineWidth(0);
	wtu.glErrorShouldBe(gl, gl.INVALID_VALUE, "Should not be able to set lineWidth to zero");
	shouldBe('gl.getParameter(gl.LINE_WIDTH)', 'curLineWidth'); // Previous value should be preserved

	gl.lineWidth(-1);
	wtu.glErrorShouldBe(gl, gl.INVALID_VALUE, "Should not be able to set lineWidth to a negative value");
	shouldBe('gl.getParameter(gl.LINE_WIDTH)', 'curLineWidth'); // Previous value should be preserved

	gl.lineWidth(NaN);
	wtu.glErrorShouldBe(gl, gl.INVALID_VALUE, "Should not be able to set lineWidth to NaN");
	shouldBe('gl.getParameter(gl.LINE_WIDTH)', 'curLineWidth'); // Previous value should be preserved

	// Check that the line width can be set to the valid range.
	gl.lineWidth(lineWidthRange[1]);
	wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be able to set lineWidth to the max supported value");
	shouldBe('gl.getParameter(gl.LINE_WIDTH)', 'lineWidthRange[1]');

	gl.lineWidth(lineWidthRange[0]);
	wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be able to set lineWidth to the min supported value");
	shouldBe('gl.getParameter(gl.LINE_WIDTH)', 'lineWidthRange[0]');

	// Checks that the line width can be set outside the supported range without error,
	// and the unclamped value can be queried back.
	// Yes, this is actually what the spec says should happen.
	// See: https://www.khronos.org/opengles/sdk/docs/man3/html/glLineWidth.xhtml
	gl.lineWidth(lineWidthRange[1]+1);
	wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be able to set lineWidth to the above max supported value");
	shouldBe('gl.getParameter(gl.LINE_WIDTH)', 'lineWidthRange[1]+1');

	var successfullyParsed = true;

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

	</body>
	</html>