conformance/attribs/gl-disabled-vertex-attrib.html - chromium/deps/webgl/sdk/tests - 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 Disabled Vertex Attrib Test</title>
 <link rel="stylesheet" href="../../resources/js-test-style.css"/>
 <script src="../../resources/js-test-pre.js"></script>
 <script src="../resources/webgl-test.js"> </script>
 <script src="../resources/webgl-test-utils.js"> </script>
 </head>
 <body>
 <canvas id="example" width="50" height="50">
 </canvas>
 <div id="description"></div>
 <div id="console"></div>
 <script id="vshader" type="x-shader/x-vertex">
 attribute vec4 a_position;
 attribute vec4 a_color;
 varying vec4 v_color;
 void main() {
   gl_Position = a_position;
   v_color = a_color;
 }
 </script>

 <script id="fshader" type="x-shader/x-fragment">
 precision mediump float;
 varying vec4 v_color;
 bool isCorrectColor(vec4 v) {
   return v.x == 0.0 && v.y == 0.0 && v.z == 0.0 && v.w == 1.0;
 }
 void main() {
   gl_FragColor = isCorrectColor(v_color) ? vec4(0, 1, 0, 1) : vec4(1, 0, 0, 1);
 }
 </script>

 <script>
 "use strict";
 var wtu = WebGLTestUtils;
 description();

 var gl = wtu.create3DContext("example");

 var numVertexAttribs = gl.getParameter(gl.MAX_VERTEX_ATTRIBS);
 for (var ii = 0; ii < numVertexAttribs; ++ii) {
   var colorLocation = (ii + 1) % numVertexAttribs;
   var positionLocation = colorLocation ? 0 : 1;

   if (positionLocation != 0) {
     // We need to create a new 3d context for testing attrib 0
     // since we've already effected attrib 0 on other tests.
     gl = wtu.create3DContext();
   }

   debug("testing attrib: " + colorLocation);
   var program = wtu.setupProgram(
       gl,
       ['vshader', 'fshader'],
       ['a_position', 'a_color'],
       [positionLocation, colorLocation]);
   var gridRes = 1;
   wtu.setupIndexedQuad(gl, gridRes, positionLocation);
   wtu.clearAndDrawIndexedQuad(gl, gridRes);
   wtu.checkCanvas(gl, [0, 255, 0, 255], "should be green");
 }
 glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors");

 var successfullyParsed = true;
 </script>
 <script src="../../resources/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 Disabled Vertex Attrib Test</title>
	<link rel="stylesheet" href="../../resources/js-test-style.css"/>
	<script src="../../resources/js-test-pre.js"></script>
	<script src="../resources/webgl-test.js"> </script>
	<script src="../resources/webgl-test-utils.js"> </script>
	</head>
	<body>
	<canvas id="example" width="50" height="50">
	</canvas>
	<div id="description"></div>
	<div id="console"></div>
	<script id="vshader" type="x-shader/x-vertex">
	attribute vec4 a_position;
	attribute vec4 a_color;
	varying vec4 v_color;
	void main() {
	gl_Position = a_position;
	v_color = a_color;
	}
	</script>

	<script id="fshader" type="x-shader/x-fragment">
	precision mediump float;
	varying vec4 v_color;
	bool isCorrectColor(vec4 v) {
	return v.x == 0.0 && v.y == 0.0 && v.z == 0.0 && v.w == 1.0;
	}
	void main() {
	gl_FragColor = isCorrectColor(v_color) ? vec4(0, 1, 0, 1) : vec4(1, 0, 0, 1);
	}
	</script>

	<script>
	"use strict";
	var wtu = WebGLTestUtils;
	description();

	var gl = wtu.create3DContext("example");

	var numVertexAttribs = gl.getParameter(gl.MAX_VERTEX_ATTRIBS);
	for (var ii = 0; ii < numVertexAttribs; ++ii) {
	var colorLocation = (ii + 1) % numVertexAttribs;
	var positionLocation = colorLocation ? 0 : 1;

	if (positionLocation != 0) {
	// We need to create a new 3d context for testing attrib 0
	// since we've already effected attrib 0 on other tests.
	gl = wtu.create3DContext();
	}

	debug("testing attrib: " + colorLocation);
	var program = wtu.setupProgram(
	gl,
	['vshader', 'fshader'],
	['a_position', 'a_color'],
	[positionLocation, colorLocation]);
	var gridRes = 1;
	wtu.setupIndexedQuad(gl, gridRes, positionLocation);
	wtu.clearAndDrawIndexedQuad(gl, gridRes);
	wtu.checkCanvas(gl, [0, 255, 0, 255], "should be green");
	}
	glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors");

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

	</body>
	</html>