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| 1 <!-- | |
| 2 Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
| 3 Use of this source code is governed by a BSD-style license that can be | |
| 4 found in the LICENSE file. | |
| 5 --> | |
| 6 <!DOCTYPE html> | |
| 7 <html> | |
| 8 <head> | |
| 9 <meta charset="utf-8"> | |
| 10 <link rel="stylesheet" href="../resources/js-test-style.css"/> | |
| 11 <script src="../resources/js-test-pre.js"></script> | |
| 12 <script src="resources/webgl-test.js"></script> | |
| 13 <script> | |
| 14 function runTest(gl, width, height) | |
| 15 { | |
| 16 | |
| 17 debug('Test whether the WebGL internal buffers have been initialized to 0.')
; | |
| 18 var totalBytes = width * height * 4; | |
| 19 var buf = new Uint8Array(totalBytes); | |
| 20 gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, buf); | |
| 21 if (gl.getError() != gl.NO_ERROR) { | |
| 22 testFailed('GL error detected after readPixels().'); | |
| 23 return false; | |
| 24 } | |
| 25 for (var i = 0; i < totalBytes; ++i) { | |
| 26 if (buf[i] != 0) { | |
| 27 testFailed('WebGL internal buffers are dirty.'); | |
| 28 return false; | |
| 29 } | |
| 30 } | |
| 31 testPassed('Buffers have been initialized to 0.'); | |
| 32 | |
| 33 debug('Test whether user created buffers have been initialized to 0.'); | |
| 34 var fbo = gl.createFramebuffer(); | |
| 35 gl.bindFramebuffer(gl.FRAMEBUFFER, fbo); | |
| 36 var colorbuffer = gl.createRenderbuffer(); | |
| 37 gl.bindRenderbuffer(gl.RENDERBUFFER, colorbuffer); | |
| 38 gl.renderbufferStorage(gl.RENDERBUFFER, gl.RGBA4, width, height); | |
| 39 if (gl.getError() != gl.NO_ERROR) { | |
| 40 testFailed('GL error detected after renderbufferStorage(internalformat =
RGBA4).'); | |
| 41 return false; | |
| 42 } | |
| 43 gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBU
FFER, colorbuffer); | |
| 44 if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) != gl.FRAMEBUFFER_COMPLETE) { | |
| 45 testFailed('Framebuffer incomplete.'); | |
| 46 return false; | |
| 47 } | |
| 48 gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, buf); | |
| 49 if (gl.getError() != gl.NO_ERROR) { | |
| 50 testFailed('GL error detected after readPixels().'); | |
| 51 return false; | |
| 52 } | |
| 53 for (var i = 0; i < totalBytes; ++i) { | |
| 54 if (buf[i] != 0) { | |
| 55 testFailed('User created buffers are dirty.'); | |
| 56 return false; | |
| 57 } | |
| 58 } | |
| 59 | |
| 60 testPassed('Buffers have been initialized to 0.'); | |
| 61 return true; | |
| 62 } | |
| 63 </script> | |
| 64 </head> | |
| 65 <body> | |
| 66 <canvas id="testbed" width="400px" height="400px"></canvas> | |
| 67 <div id="description"></div> | |
| 68 <div id="console"></div> | |
| 69 <script> | |
| 70 var successfullyParsed = false; | |
| 71 | |
| 72 description('Verify renderbuffers are initialized to 0 before being read in WebG
L'); | |
| 73 | |
| 74 var canvas = document.getElementById("testbed"); | |
| 75 var gl = canvas.getContext("experimental-webgl"); | |
| 76 if (!gl) { | |
| 77 testFailed('canvas.getContext() failed'); | |
| 78 } else { | |
| 79 runTest(gl, canvas.width, canvas.height); | |
| 80 | |
| 81 // Testing that canvas resizing will clear the buffers with 0 instead of the
current clear values. | |
| 82 gl.clearColor(1, 0, 0, 1); | |
| 83 canvas.width += 1; | |
| 84 canvas.height += 1; | |
| 85 runTest(gl, canvas.width, canvas.height); | |
| 86 | |
| 87 // Testing buffer clearing won't change the clear values. | |
| 88 var clearColor = gl.getParameter(gl.COLOR_CLEAR_VALUE); | |
| 89 shouldBe("clearColor", "[1, 0, 0, 1]"); | |
| 90 | |
| 91 successfullyParsed = true; | |
| 92 } | |
| 93 </script> | |
| 94 <script src="../resources/js-test-post.js"></script> | |
| 95 </body> | |
| 96 </html> | |
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Chromium Code Reviews
Issue 8344024:
Remove older revision of webgl conformance tests. (Closed)
Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/webgl/sdk/tests/