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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 vertexAttribPointer Conformance Tests</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="../../resources/js-test-pre.js"></script> |
| 36 <script src="../resources/webgl-test.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"> </canvas> |
| 43 <script> |
| 44 description("This test checks vertexAttribPointer behaviors in WebGL."); |
| 45 |
| 46 debug(""); |
| 47 debug("Canvas.getContext"); |
| 48 |
| 49 var wtu = WebGLTestUtils; |
| 50 var gl = create3DContext(document.getElementById("canvas")); |
| 51 if (!gl) { |
| 52 testFailed("context does not exist"); |
| 53 } else { |
| 54 testPassed("context exists"); |
| 55 |
| 56 debug(""); |
| 57 debug("Checking gl.vertexAttribPointer."); |
| 58 |
| 59 if (!gl.FIXED) { |
| 60 gl.FIXED = 0x140C; |
| 61 } |
| 62 |
| 63 gl.vertexAttribPointer(0, 3, gl.FLOAT, 0, 0, 12); |
| 64 glErrorShouldBe(gl, gl.INVALID_OPERATION, |
| 65 "vertexAttribPointer should fail if no buffer is bound"); |
| 66 |
| 67 var vertexObject = gl.createBuffer(); |
| 68 gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject); |
| 69 gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(0), gl.STATIC_DRAW); |
| 70 |
| 71 gl.vertexAttribPointer(0, 1, gl.INT, 0, 0, 0); |
| 72 glErrorShouldBe(gl, gl.INVALID_ENUM, |
| 73 "vertexAttribPointer should not support INT"); |
| 74 gl.vertexAttribPointer(0, 1, gl.UNSIGNED_INT, 0, 0, 0); |
| 75 glErrorShouldBe(gl, gl.INVALID_ENUM, |
| 76 "vertexAttribPointer should not support UNSIGNED_INT"); |
| 77 gl.vertexAttribPointer(0, 1, gl.FIXED, 0, 0, 0); |
| 78 glErrorShouldBe(gl, gl.INVALID_ENUM, |
| 79 "vertexAttribPointer should not support FIXED"); |
| 80 |
| 81 function checkVertexAttribPointer( |
| 82 gl, err, reason, size, type, normalize, stride, offset) { |
| 83 gl.vertexAttribPointer(0, size, type, normalize, stride, offset); |
| 84 glErrorShouldBe(gl, err, |
| 85 "gl.vertexAttribPointer(0, " + size + |
| 86 ", gl." + wtu.glEnumToString(gl, type) + |
| 87 ", " + normalize + |
| 88 ", " + stride + |
| 89 ", " + offset + |
| 90 ") should " + (err == gl.NO_ERROR ? "succeed " : "fail ") + reason); |
| 91 } |
| 92 |
| 93 var types = [ |
| 94 { type:gl.BYTE, bytesPerComponent: 1 }, |
| 95 { type:gl.UNSIGNED_BYTE, bytesPerComponent: 1 }, |
| 96 { type:gl.SHORT, bytesPerComponent: 2 }, |
| 97 { type:gl.UNSIGNED_SHORT, bytesPerComponent: 2 }, |
| 98 { type:gl.FLOAT, bytesPerComponent: 4 }, |
| 99 ]; |
| 100 |
| 101 for (var ii = 0; ii < types.length; ++ii) { |
| 102 var info = types[ii]; |
| 103 debug(""); |
| 104 for (var size = 1; size <= 4; ++size) { |
| 105 debug(""); |
| 106 debug("checking: " + wtu.glEnumToString(gl, info.type) + " with size " + s
ize); |
| 107 var bytesPerElement = size * info.bytesPerComponent; |
| 108 var offsetSet = [ |
| 109 0, |
| 110 1, |
| 111 info.bytesPerComponent - 1, |
| 112 info.bytesPerComponent, |
| 113 info.bytesPerComponent + 1, |
| 114 info.bytesPerComponent * 2]; |
| 115 for (var jj = 0; jj < offsetSet.length; ++jj) { |
| 116 var offset = offsetSet[jj]; |
| 117 for (var kk = 0; kk < offsetSet.length; ++kk) { |
| 118 var stride = offsetSet[kk]; |
| 119 var err = gl.NO_ERROR; |
| 120 var reason = "" |
| 121 if (offset % info.bytesPerComponent != 0) { |
| 122 reason = "because offset is bad"; |
| 123 err = gl.INVALID_OPERATION; |
| 124 } |
| 125 if (stride % info.bytesPerComponent != 0) { |
| 126 reason = "because stride is bad"; |
| 127 err = gl.INVALID_OPERATION; |
| 128 } |
| 129 checkVertexAttribPointer( |
| 130 gl, err, reason, size, info.type, false, stride, offset); |
| 131 } |
| 132 var stride = Math.floor(255 / info.bytesPerComponent) * info.bytesPerCom
ponent; |
| 133 |
| 134 if (offset == 0) { |
| 135 checkVertexAttribPointer( |
| 136 gl, gl.NO_ERROR, "at stride limit", |
| 137 size, info.type, false, stride, offset); |
| 138 checkVertexAttribPointer( |
| 139 gl, gl.INVALID_VALUE, "over stride limit", |
| 140 size, info.type, false, |
| 141 stride + info.bytesPerComponent, offset); |
| 142 } |
| 143 } |
| 144 } |
| 145 } |
| 146 } |
| 147 |
| 148 debug(""); |
| 149 successfullyParsed = true; |
| 150 |
| 151 </script> |
| 152 <script src="../../resources/js-test-post.js"></script> |
| 153 |
| 154 </body> |
| 155 </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/