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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 <title>WebGL OES_vertex_array_object Conformance Tests</title> |
| 11 <link rel="stylesheet" href="../../resources/js-test-style.css"/> |
| 12 <script src="../../resources/desktop-gl-constants.js" type="text/javascript"></s
cript> |
| 13 <script src="../../resources/js-test-pre.js"></script> |
| 14 <script src="../resources/webgl-test.js"></script> |
| 15 <script src="../resources/webgl-test-utils.js"></script> |
| 16 <!-- comment in the script tag below to test through JS emualation of the extens
ion. --> |
| 17 <!-- |
| 18 <script src="../../../demos/google/resources/OESVertexArrayObject.js"></script> |
| 19 --> |
| 20 </head> |
| 21 <body> |
| 22 <div id="description"></div> |
| 23 <canvas id="canvas" style="width: 50px; height: 50px;"> </canvas> |
| 24 <div id="console"></div> |
| 25 <!-- Shaders for testing standard derivatives --> |
| 26 |
| 27 <script> |
| 28 description("This test verifies the functionality of the OES_vertex_array_object
extension, if it is available."); |
| 29 |
| 30 debug(""); |
| 31 |
| 32 var wtu = WebGLTestUtils; |
| 33 var canvas = document.getElementById("canvas"); |
| 34 var gl = create3DContext(canvas); |
| 35 var ext = null; |
| 36 var vao = null; |
| 37 |
| 38 if (!gl) { |
| 39 testFailed("WebGL context does not exist"); |
| 40 } else { |
| 41 testPassed("WebGL context exists"); |
| 42 |
| 43 // Setup emulated OESVertexArrayObject if it has been included. |
| 44 if (window.setupVertexArrayObject) { |
| 45 debug("using emuated OES_vertex_array_object"); |
| 46 setupVertexArrayObject(gl); |
| 47 } |
| 48 |
| 49 // Run tests with extension disabled |
| 50 runBindingTestDisabled(); |
| 51 |
| 52 // Query the extension and store globally so shouldBe can access it |
| 53 ext = gl.getExtension("OES_vertex_array_object"); |
| 54 if (!ext) { |
| 55 testPassed("No OES_vertex_array_object support -- this is legal"); |
| 56 |
| 57 runSupportedTest(false); |
| 58 } else { |
| 59 testPassed("Successfully enabled OES_vertex_array_object extension"); |
| 60 |
| 61 runSupportedTest(true); |
| 62 runBindingTestEnabled(); |
| 63 runObjectTest(); |
| 64 runAttributeTests(); |
| 65 runAttributeValueTests(); |
| 66 runDrawTests(); |
| 67 } |
| 68 } |
| 69 |
| 70 function runSupportedTest(extensionEnabled) { |
| 71 var supported = gl.getSupportedExtensions(); |
| 72 if (supported.indexOf("OES_vertex_array_object") >= 0) { |
| 73 if (extensionEnabled) { |
| 74 testPassed("OES_vertex_array_object listed as supported and getExten
sion succeeded"); |
| 75 } else { |
| 76 testFailed("OES_vertex_array_object listed as supported but getExten
sion failed"); |
| 77 } |
| 78 } else { |
| 79 if (extensionEnabled) { |
| 80 testFailed("OES_vertex_array_object not listed as supported but getE
xtension succeeded"); |
| 81 } else { |
| 82 testPassed("OES_vertex_array_object not listed as supported and getE
xtension failed -- this is legal"); |
| 83 } |
| 84 } |
| 85 } |
| 86 |
| 87 function runBindingTestDisabled() { |
| 88 debug("Testing binding enum with extension disabled"); |
| 89 |
| 90 // Use the constant directly as we don't have the extension |
| 91 var VERTEX_ARRAY_BINDING_OES = 0x85B5; |
| 92 |
| 93 gl.getParameter(VERTEX_ARRAY_BINDING_OES); |
| 94 glErrorShouldBe(gl, gl.INVALID_ENUM, "VERTEX_ARRAY_BINDING_OES should not be
queryable if extension is disabled"); |
| 95 } |
| 96 |
| 97 function runBindingTestEnabled() { |
| 98 debug("Testing binding enum with extension enabled"); |
| 99 |
| 100 shouldBe("ext.VERTEX_ARRAY_BINDING_OES", "0x85B5"); |
| 101 |
| 102 gl.getParameter(ext.VERTEX_ARRAY_BINDING_OES); |
| 103 glErrorShouldBe(gl, gl.NO_ERROR, "VERTEX_ARRAY_BINDING_OES query should succ
eed if extension is enable"); |
| 104 |
| 105 // Default value is null |
| 106 if (gl.getParameter(ext.VERTEX_ARRAY_BINDING_OES) === null) { |
| 107 testPassed("Default value of VERTEX_ARRAY_BINDING_OES is null"); |
| 108 } else { |
| 109 testFailed("Default value of VERTEX_ARRAY_BINDING_OES is not null"); |
| 110 } |
| 111 |
| 112 debug("Testing binding a VAO"); |
| 113 var vao0 = ext.createVertexArrayOES(); |
| 114 var vao1 = ext.createVertexArrayOES(); |
| 115 shouldBeNull("gl.getParameter(ext.VERTEX_ARRAY_BINDING_OES)"); |
| 116 ext.bindVertexArrayOES(vao0); |
| 117 if (gl.getParameter(ext.VERTEX_ARRAY_BINDING_OES) == vao0) { |
| 118 testPassed("gl.getParameter(ext.VERTEX_ARRAY_BINDING_OES) is expected VA
O"); |
| 119 } else { |
| 120 testFailed("gl.getParameter(ext.VERTEX_ARRAY_BINDING_OES) is not expecte
d VAO") |
| 121 } |
| 122 ext.bindVertexArrayOES(vao1); |
| 123 if (gl.getParameter(ext.VERTEX_ARRAY_BINDING_OES) == vao1) { |
| 124 testPassed("gl.getParameter(ext.VERTEX_ARRAY_BINDING_OES) is expected VA
O"); |
| 125 } else { |
| 126 testFailed("gl.getParameter(ext.VERTEX_ARRAY_BINDING_OES) is not expecte
d VAO") |
| 127 } |
| 128 ext.deleteVertexArrayOES(vao1); |
| 129 shouldBeNull("gl.getParameter(ext.VERTEX_ARRAY_BINDING_OES)"); |
| 130 ext.bindVertexArrayOES(vao1); |
| 131 glErrorShouldBe(gl, gl.INVALID_OPERATION, "binding a deleted vertex array ob
ject"); |
| 132 ext.bindVertexArrayOES(null); |
| 133 shouldBeNull("gl.getParameter(ext.VERTEX_ARRAY_BINDING_OES)"); |
| 134 ext.deleteVertexArrayOES(vao1); |
| 135 } |
| 136 |
| 137 function runObjectTest() { |
| 138 debug("Testing object creation"); |
| 139 |
| 140 vao = ext.createVertexArrayOES(); |
| 141 glErrorShouldBe(gl, gl.NO_ERROR, "createVertexArrayOES should not set an err
or"); |
| 142 shouldBeNonNull("vao"); |
| 143 |
| 144 // Expect false if never bound |
| 145 shouldBeFalse("ext.isVertexArrayOES(vao)"); |
| 146 ext.bindVertexArrayOES(vao); |
| 147 shouldBeTrue("ext.isVertexArrayOES(vao)"); |
| 148 ext.bindVertexArrayOES(null); |
| 149 shouldBeTrue("ext.isVertexArrayOES(vao)"); |
| 150 |
| 151 shouldBeFalse("ext.isVertexArrayOES()"); |
| 152 shouldBeFalse("ext.isVertexArrayOES(null)"); |
| 153 |
| 154 ext.deleteVertexArrayOES(vao); |
| 155 vao = null; |
| 156 } |
| 157 |
| 158 function runAttributeTests() { |
| 159 debug("Testing attributes work across bindings"); |
| 160 |
| 161 var states = []; |
| 162 |
| 163 var attrCount = gl.getParameter(gl.MAX_VERTEX_ATTRIBS); |
| 164 for (var n = 0; n < attrCount; n++) { |
| 165 gl.bindBuffer(gl.ARRAY_BUFFER, null); |
| 166 gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, null); |
| 167 |
| 168 var state = {}; |
| 169 states.push(state); |
| 170 |
| 171 var vao = state.vao = ext.createVertexArrayOES(); |
| 172 ext.bindVertexArrayOES(vao); |
| 173 |
| 174 if (n % 2 == 0) { |
| 175 gl.enableVertexAttribArray(n); |
| 176 } else { |
| 177 gl.disableVertexAttribArray(n); |
| 178 } |
| 179 |
| 180 if (n % 2 == 0) { |
| 181 var buffer = state.buffer = gl.createBuffer(); |
| 182 gl.bindBuffer(gl.ARRAY_BUFFER, buffer); |
| 183 gl.bufferData(gl.ARRAY_BUFFER, 1024, gl.STATIC_DRAW); |
| 184 |
| 185 gl.vertexAttribPointer(n, 1 + n % 4, gl.FLOAT, true, n * 4, n * 4); |
| 186 } |
| 187 |
| 188 if (n % 2 == 0) { |
| 189 var elbuffer = state.elbuffer = gl.createBuffer(); |
| 190 gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, elbuffer); |
| 191 gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, 1024, gl.STATIC_DRAW); |
| 192 } |
| 193 |
| 194 ext.bindVertexArrayOES(null); |
| 195 } |
| 196 |
| 197 var anyMismatch = false; |
| 198 for (var n = 0; n < attrCount; n++) { |
| 199 var state = states[n]; |
| 200 |
| 201 ext.bindVertexArrayOES(state.vao); |
| 202 |
| 203 var isEnabled = gl.getVertexAttrib(n, gl.VERTEX_ATTRIB_ARRAY_ENABLED); |
| 204 if ((n % 2 == 1) || isEnabled) { |
| 205 // Valid |
| 206 } else { |
| 207 testFailed("VERTEX_ATTRIB_ARRAY_ENABLED not preserved"); |
| 208 anyMismatch = true; |
| 209 } |
| 210 |
| 211 var buffer = gl.getVertexAttrib(n, gl.VERTEX_ATTRIB_ARRAY_BUFFER_BINDING
); |
| 212 if (n % 2 == 0) { |
| 213 if (buffer == state.buffer) { |
| 214 // Matched |
| 215 if ((gl.getVertexAttrib(n, gl.VERTEX_ATTRIB_ARRAY_SIZE) == 1 + n
% 4) && |
| 216 (gl.getVertexAttrib(n, gl.VERTEX_ATTRIB_ARRAY_TYPE) == gl.FL
OAT) && |
| 217 (gl.getVertexAttrib(n, gl.VERTEX_ATTRIB_ARRAY_NORMALIZED) ==
true) && |
| 218 (gl.getVertexAttrib(n, gl.VERTEX_ATTRIB_ARRAY_STRIDE) == n *
4) && |
| 219 (gl.getVertexAttribOffset(n, gl.VERTEX_ATTRIB_ARRAY_POINTER)
== n * 4)) { |
| 220 // Matched |
| 221 } else { |
| 222 testFailed("VERTEX_ATTRIB_ARRAY_* not preserved"); |
| 223 anyMismatch = true; |
| 224 } |
| 225 } else { |
| 226 testFailed("VERTEX_ATTRIB_ARRAY_BUFFER_BINDING not preserved"); |
| 227 anyMismatch = true; |
| 228 } |
| 229 } else { |
| 230 // GL_CURRENT_VERTEX_ATTRIB is not preserved |
| 231 if (buffer) { |
| 232 testFailed("VERTEX_ATTRIB_ARRAY_BUFFER_BINDING not preserved"); |
| 233 anyMismatch = true; |
| 234 } |
| 235 } |
| 236 |
| 237 var elbuffer = gl.getParameter(gl.ELEMENT_ARRAY_BUFFER_BINDING); |
| 238 if (n % 2 == 0) { |
| 239 if (elbuffer == state.elbuffer) { |
| 240 // Matched |
| 241 } else { |
| 242 testFailed("ELEMENT_ARRAY_BUFFER_BINDING not preserved"); |
| 243 anyMismatch = true; |
| 244 } |
| 245 } else { |
| 246 if (elbuffer == null) { |
| 247 // Matched |
| 248 } else { |
| 249 testFailed("ELEMENT_ARRAY_BUFFER_BINDING not preserved"); |
| 250 anyMismatch = true; |
| 251 } |
| 252 } |
| 253 } |
| 254 ext.bindVertexArrayOES(null); |
| 255 if (!anyMismatch) { |
| 256 testPassed("All attributes preserved across bindings"); |
| 257 } |
| 258 |
| 259 for (var n = 0; n < attrCount; n++) { |
| 260 var state = states[n]; |
| 261 ext.deleteVertexArrayOES(state.vao); |
| 262 } |
| 263 } |
| 264 |
| 265 function runAttributeValueTests() { |
| 266 debug("Testing that attribute values are not attached to bindings"); |
| 267 |
| 268 var v; |
| 269 var vao0 = ext.createVertexArrayOES(); |
| 270 var anyFailed = false; |
| 271 |
| 272 ext.bindVertexArrayOES(null); |
| 273 gl.vertexAttrib4f(0, 0, 1, 2, 3); |
| 274 |
| 275 v = gl.getVertexAttrib(0, gl.CURRENT_VERTEX_ATTRIB); |
| 276 if (!(v[0] == 0 && v[1] == 1 && v[2] == 2 && v[3] == 3)) { |
| 277 testFailed("Vertex attrib value not round-tripped?"); |
| 278 anyFailed = true; |
| 279 } |
| 280 |
| 281 ext.bindVertexArrayOES(vao0); |
| 282 |
| 283 v = gl.getVertexAttrib(0, gl.CURRENT_VERTEX_ATTRIB); |
| 284 if (!(v[0] == 0 && v[1] == 1 && v[2] == 2 && v[3] == 3)) { |
| 285 testFailed("Vertex attrib value reset across bindings"); |
| 286 anyFailed = true; |
| 287 } |
| 288 |
| 289 gl.vertexAttrib4f(0, 4, 5, 6, 7); |
| 290 ext.bindVertexArrayOES(null); |
| 291 |
| 292 v = gl.getVertexAttrib(0, gl.CURRENT_VERTEX_ATTRIB); |
| 293 if (!(v[0] == 4 && v[1] == 5 && v[2] == 6 && v[3] == 7)) { |
| 294 testFailed("Vertex attrib value bound to buffer"); |
| 295 anyFailed = true; |
| 296 } |
| 297 |
| 298 if (!anyFailed) { |
| 299 testPassed("Vertex attribute values are not attached to bindings") |
| 300 } |
| 301 |
| 302 ext.bindVertexArrayOES(null); |
| 303 ext.deleteVertexArrayOES(vao0); |
| 304 } |
| 305 |
| 306 function runDrawTests() { |
| 307 debug("Testing draws with various VAO bindings"); |
| 308 |
| 309 canvas.width = 50; canvas.height = 50; |
| 310 gl.viewport(0, 0, canvas.width, canvas.height); |
| 311 |
| 312 var vao0 = ext.createVertexArrayOES(); |
| 313 var vao1 = ext.createVertexArrayOES(); |
| 314 |
| 315 var program = wtu.setupSimpleTextureProgram(gl, 0, 1); |
| 316 |
| 317 function setupQuad(s) { |
| 318 var opt_positionLocation = 0; |
| 319 var opt_texcoordLocation = 1; |
| 320 var vertexObject = gl.createBuffer(); |
| 321 gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject); |
| 322 gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([ |
| 323 1.0 * s, 1.0 * s, 0.0, |
| 324 -1.0 * s, 1.0 * s, 0.0, |
| 325 -1.0 * s, -1.0 * s, 0.0, |
| 326 1.0 * s, 1.0 * s, 0.0, |
| 327 -1.0 * s, -1.0 * s, 0.0, |
| 328 1.0 * s, -1.0 * s, 0.0]), gl.STATIC_DRAW); |
| 329 gl.enableVertexAttribArray(opt_positionLocation); |
| 330 gl.vertexAttribPointer(opt_positionLocation, 3, gl.FLOAT, false, 0, 0); |
| 331 |
| 332 var vertexObject = gl.createBuffer(); |
| 333 gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject); |
| 334 gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([ |
| 335 1.0 * s, 1.0 * s, |
| 336 0.0 * s, 1.0 * s, |
| 337 0.0 * s, 0.0 * s, |
| 338 1.0 * s, 1.0 * s, |
| 339 0.0 * s, 0.0 * s, |
| 340 1.0 * s, 0.0 * s]), gl.STATIC_DRAW); |
| 341 gl.enableVertexAttribArray(opt_texcoordLocation); |
| 342 gl.vertexAttribPointer(opt_texcoordLocation, 2, gl.FLOAT, false, 0, 0); |
| 343 }; |
| 344 |
| 345 function readLocation(x, y) { |
| 346 var pixels = new Uint8Array(1 * 1 * 4); |
| 347 gl.readPixels(x, y, 1, 1, gl.RGBA, gl.UNSIGNED_BYTE, pixels); |
| 348 return pixels; |
| 349 }; |
| 350 function testPixel(blackList, whiteList) { |
| 351 function testList(list, expected) { |
| 352 for (var n = 0; n < list.length; n++) { |
| 353 var l = list[n]; |
| 354 var x = -Math.floor(l * canvas.width / 2) + canvas.width / 2; |
| 355 var y = -Math.floor(l * canvas.height / 2) + canvas.height / 2; |
| 356 var source = readLocation(x, y); |
| 357 if (Math.abs(source[0] - expected) > 2) { |
| 358 return false; |
| 359 } |
| 360 } |
| 361 return true; |
| 362 } |
| 363 return testList(blackList, 0) && testList(whiteList, 255); |
| 364 }; |
| 365 function verifyDraw(drawNumber, s) { |
| 366 wtu.drawQuad(gl); |
| 367 var blackList = []; |
| 368 var whiteList = []; |
| 369 var points = [0.0, 0.2, 0.4, 0.6, 0.8, 1.0]; |
| 370 for (var n = 0; n < points.length; n++) { |
| 371 if (points[n] <= s) { |
| 372 blackList.push(points[n]); |
| 373 } else { |
| 374 whiteList.push(points[n]); |
| 375 } |
| 376 } |
| 377 if (testPixel(blackList, whiteList)) { |
| 378 testPassed("Draw " + drawNumber + " passed pixel test"); |
| 379 } else { |
| 380 testFailed("Draw " + drawNumber + " failed pixel test"); |
| 381 } |
| 382 }; |
| 383 |
| 384 // Setup all bindings |
| 385 setupQuad(1); |
| 386 ext.bindVertexArrayOES(vao0); |
| 387 setupQuad(0.5); |
| 388 ext.bindVertexArrayOES(vao1); |
| 389 setupQuad(0.25); |
| 390 |
| 391 // Verify drawing |
| 392 ext.bindVertexArrayOES(null); |
| 393 verifyDraw(0, 1); |
| 394 ext.bindVertexArrayOES(vao0); |
| 395 verifyDraw(1, 0.5); |
| 396 ext.bindVertexArrayOES(vao1); |
| 397 verifyDraw(2, 0.25); |
| 398 |
| 399 ext.bindVertexArrayOES(null); |
| 400 ext.deleteVertexArrayOES(vao0); |
| 401 ext.deleteVertexArrayOES(vao1); |
| 402 } |
| 403 |
| 404 debug(""); |
| 405 successfullyParsed = true; |
| 406 </script> |
| 407 <script src="../../resources/js-test-post.js"></script> |
| 408 |
| 409 </body> |
| 410 </html> |
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Chromium Code Reviews
Issue 8342021:
Add webgl conformance tests r15841. (Closed)
Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/webgl/sdk/tests/