| <!-- |
| Copyright (c) 2019 The Khronos Group Inc. |
| Use of this source code is governed by an MIT-style license that can be |
| found in the LICENSE.txt file. |
| --> |
| |
| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>WebGL Repeated BindAttribLocation Test</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="50" height="50"> |
| </canvas> |
| <div id="description"></div> |
| <div id="console"></div> |
| <script id="vshader" type="x-shader/x-vertex"> |
| attribute vec4 vPosition; |
| void main() |
| { |
| gl_Position = vPosition; |
| } |
| </script> |
| |
| <script id="fshader" type="x-shader/x-fragment"> |
| void main() |
| { |
| gl_FragColor = vec4(0.0,1.0,0.0,1.0); |
| } |
| </script> |
| |
| <script> |
| "use strict"; |
| description("Test repeated loading of programs involving bindAttribLocation calls"); |
| debug("Regression test for <a href='https://code.google.com/p/chromium/issues/detail?id=510637'>crbug.com/510637</a>"); |
| var wtu = WebGLTestUtils; |
| var gl = wtu.create3DContext("example"); |
| var g_program; |
| var g_attribLocation; |
| function setup(attribIndex) { |
| var program = wtu.setupProgram( |
| gl, ['vshader', 'fshader'], ['vPosition'], [attribIndex]); |
| g_program = program; |
| g_attribLocation = attribIndex; |
| shouldBe("gl.getAttribLocation(g_program, 'vPosition')", "g_attribLocation"); |
| return program; |
| } |
| |
| var p0 = setup(0); |
| var p3 = setup(3); |
| var p1 = setup(1); |
| // This call fails the getAttribLocation check on some drivers when |
| // Chrome's program binary cache is enabled. On the affected drivers, |
| // it returns the bound attribute location from the first binary |
| // created. Swapping 0 and 1 above will cause it to return 1 rather |
| // than 0. |
| p3 = setup(3); |
| |
| var successfullyParsed = true; |
| </script> |
| <script src="../../js/js-test-post.js"></script> |
| |
| </body> |
| </html> |
