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| 1 <!-- |
| 2 Copyright (C) 2011 Apple Computer, Inc. All rights reserved. |
| 3 |
| 4 Redistribution and use in source and binary forms, with or without |
| 5 modification, are permitted provided that the following conditions |
| 6 are met: |
| 7 1. Redistributions of source code must retain the above copyright |
| 8 notice, this list of conditions and the following disclaimer. |
| 9 2. Redistributions in binary form must reproduce the above copyright |
| 10 notice, this list of conditions and the following disclaimer in the |
| 11 documentation and/or other materials provided with the distribution. |
| 12 |
| 13 THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
| 14 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 15 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 16 PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| 17 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 18 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 19 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 20 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| 21 OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 22 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 23 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 24 --> |
| 25 |
| 26 <!DOCTYPE html> |
| 27 <html> |
| 28 <head> |
| 29 <meta charset="utf-8"> |
| 30 <title>Rendering Test</title> |
| 31 <link rel="stylesheet" href="../../resources/js-test-style.css"/> |
| 32 <script src="../../resources/js-test-pre.js"></script> |
| 33 <script src="../resources/webgl-test.js"> </script> |
| 34 </head> |
| 35 <body> |
| 36 <canvas id="example" width="50" height="50"> |
| 37 There is supposed to be an example drawing here, but it's not important. |
| 38 </canvas> |
| 39 <div id="description"></div> |
| 40 <div id="console"></div> |
| 41 <script id="vshader" type="x-shader/x-vertex"> |
| 42 attribute vec4 vPosition; |
| 43 void main() |
| 44 { |
| 45 gl_Position = vPosition; |
| 46 } |
| 47 </script> |
| 48 |
| 49 <script id="fshader" type="x-shader/x-fragment"> |
| 50 void main() |
| 51 { |
| 52 gl_FragColor = vec4(1.0,0.0,0.0,1.0); |
| 53 } |
| 54 </script> |
| 55 |
| 56 <script> |
| 57 function fail(x,y, buf, shouldBe) |
| 58 { |
| 59 var i = (y*50+x) * 4; |
| 60 var reason = "pixel at ("+x+","+y+") is ("+buf[i]+","+buf[i+1]+","+b
uf[i+2]+","+buf[i+3]+"), should be "+shouldBe; |
| 61 testFailed(reason); |
| 62 } |
| 63 |
| 64 function pass() |
| 65 { |
| 66 testPassed("drawing is correct"); |
| 67 } |
| 68 |
| 69 function init() |
| 70 { |
| 71 if (window.initNonKhronosFramework) { |
| 72 window.initNonKhronosFramework(false); |
| 73 } |
| 74 |
| 75 description(document.title); |
| 76 |
| 77 gl = initWebGL("example", "vshader", "fshader", [ "vPosition"], [ 0,
0, 0, 1 ], 1); |
| 78 |
| 79 var vertexObject = gl.createBuffer(); |
| 80 gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject); |
| 81 gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([ 0,0.5,0, -0.5,-0.5
,0, 0.5,-0.5,0 ]), gl.STATIC_DRAW); |
| 82 gl.enableVertexAttribArray(0); |
| 83 gl.vertexAttribPointer(0, 3, gl.FLOAT, false, 0, 0); |
| 84 |
| 85 gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); |
| 86 gl.drawArrays(gl.TRIANGLES, 0, 3); |
| 87 |
| 88 var buf = new Uint8Array(50 * 50 * 4); |
| 89 gl.readPixels(0, 0, 50, 50, gl.RGBA, gl.UNSIGNED_BYTE, buf); |
| 90 |
| 91 // Test several locations |
| 92 // First line should be all black |
| 93 for (var i = 0; i < 50; ++i) |
| 94 if (buf[i*4] != 0 || buf[i*4+1] != 0 || buf[i*4+2] != 0 || buf[i
*4+3] != 255) { |
| 95 fail(i, 0, buf, "(0,0,0,255)"); |
| 96 return; |
| 97 } |
| 98 |
| 99 // Line 15 should be red for at least 10 red pixels starting 20 pixe
ls in |
| 100 var offset = (15*50+20) * 4; |
| 101 for (var i = 0; i < 10; ++i) |
| 102 if (buf[offset+i*4] != 255 || buf[offset+i*4+1] != 0 || buf[offs
et+i*4+2] != 0 || buf[offset+i*4+3] != 255) { |
| 103 fail(20 + i, 15, buf, "(255,0,0,255)"); |
| 104 return; |
| 105 } |
| 106 // Last line should be all black |
| 107 offset = (49*50) * 4; |
| 108 for (var i = 0; i < 50; ++i) |
| 109 if (buf[offset+i*4] != 0 || buf[offset+i*4+1] != 0 || buf[offset
+i*4+2] != 0 || buf[offset+i*4+3] != 255) { |
| 110 fail(i, 49, buf, "(0,0,0,255)"); |
| 111 return; |
| 112 } |
| 113 |
| 114 pass(); |
| 115 } |
| 116 |
| 117 init(); |
| 118 successfullyParsed = true; |
| 119 </script> |
| 120 <script src="../../resources/js-test-post.js"></script> |
| 121 |
| 122 </body> |
| 123 </html> |
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Chromium Code Reviews
Issue 9373009:
Check in webgl conformance tests r16844 from khronos. (Closed)
Base URL: svn://chrome-svn/chrome/trunk/deps/
