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| 1 <!-- |
| 2 |
| 3 /* |
| 4 ** Copyright (c) 2012 The Khronos Group Inc. |
| 5 ** |
| 6 ** Permission is hereby granted, free of charge, to any person obtaining a |
| 7 ** copy of this software and/or associated documentation files (the |
| 8 ** "Materials"), to deal in the Materials without restriction, including |
| 9 ** without limitation the rights to use, copy, modify, merge, publish, |
| 10 ** distribute, sublicense, and/or sell copies of the Materials, and to |
| 11 ** permit persons to whom the Materials are furnished to do so, subject to |
| 12 ** the following conditions: |
| 13 ** |
| 14 ** The above copyright notice and this permission notice shall be included |
| 15 ** in all copies or substantial portions of the Materials. |
| 16 ** |
| 17 ** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 18 ** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 19 ** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| 20 ** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| 21 ** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| 22 ** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| 23 ** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. |
| 24 */ |
| 25 |
| 26 --> |
| 27 |
| 28 <!DOCTYPE html> |
| 29 <html> |
| 30 <head> |
| 31 <meta charset="utf-8"> |
| 32 <title>WebGL Scissor Test</title> |
| 33 <link rel="stylesheet" href="../../resources/js-test-style.css"/> |
| 34 <script src="../../resources/desktop-gl-constants.js" type="text/javascript"></s
cript> |
| 35 <script src="../../debug/webgl-debug.js"></script> |
| 36 <script src="../../resources/js-test-pre.js"></script> |
| 37 <script src="../resources/webgl-test-utils.js"></script> |
| 38 </head> |
| 39 <body> |
| 40 <div id="description"></div> |
| 41 <div id="console"></div> |
| 42 <canvas id="canvas" width="2" height="2" style="width: 40px; height: 40px;"> </c
anvas> |
| 43 <script> |
| 44 description("Check if glScissor setting works."); |
| 45 |
| 46 debug(""); |
| 47 debug("Canvas.getContext"); |
| 48 |
| 49 var wtu = WebGLTestUtils; |
| 50 var gl = wtu.create3DContext(document.getElementById("canvas")); |
| 51 if (!gl) { |
| 52 testFailed("context does not exist"); |
| 53 } else { |
| 54 testPassed("context exists"); |
| 55 |
| 56 debug(""); |
| 57 |
| 58 gl.clearColor(0,0,0,0); |
| 59 gl.clear(gl.COLOR_BUFFER_BIT); |
| 60 |
| 61 // clear a portion of our FBO |
| 62 gl.enable(gl.SCISSOR_TEST); |
| 63 gl.scissor(0, 0, 1, 1); |
| 64 gl.clearColor(0,1,0,1); |
| 65 gl.clear(gl.COLOR_BUFFER_BIT); |
| 66 |
| 67 var b = new Uint8Array(2 * 2 * 4); |
| 68 gl.readPixels(0, 0, 2, 2, gl.RGBA, gl.UNSIGNED_BYTE, b); |
| 69 |
| 70 function checkPixel(b, x, y, color) { |
| 71 var offset = (y * 2 + x) * 4; |
| 72 var match = true; |
| 73 for (var c = 0; c < 4; ++c) { |
| 74 if (b[offset + c] != color[c] * 255) { |
| 75 match = false; |
| 76 break; |
| 77 } |
| 78 } |
| 79 assertMsg(match, "pixel at " + x + ", " + y + " is expected value"); |
| 80 } |
| 81 |
| 82 checkPixel(b, 0, 0, [0, 1, 0, 1]); |
| 83 checkPixel(b, 1, 0, [0, 0, 0, 0]); |
| 84 checkPixel(b, 0, 1, [0, 0, 0, 0]); |
| 85 checkPixel(b, 1, 1, [0, 0, 0, 0]); |
| 86 } |
| 87 |
| 88 debug(""); |
| 89 successfullyParsed = true; |
| 90 |
| 91 </script> |
| 92 <script src="../../resources/js-test-post.js"></script> |
| 93 |
| 94 </body> |
| 95 </html> |
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Chromium Code Reviews
Issue 10399113:
Roll webgl conformance tests to r17874: part 2, adding r17874 (Closed)
Base URL: svn://chrome-svn/chrome/trunk/deps/