Index: conformance/extensions/oes-vertex-array-object.html |
=================================================================== |
--- conformance/extensions/oes-vertex-array-object.html (revision 0) |
+++ conformance/extensions/oes-vertex-array-object.html (working copy) |
@@ -0,0 +1,654 @@ |
+<!-- |
+ |
+/* |
+** Copyright (c) 2012 The Khronos Group Inc. |
+** |
+** Permission is hereby granted, free of charge, to any person obtaining a |
+** copy of this software and/or associated documentation files (the |
+** "Materials"), to deal in the Materials without restriction, including |
+** without limitation the rights to use, copy, modify, merge, publish, |
+** distribute, sublicense, and/or sell copies of the Materials, and to |
+** permit persons to whom the Materials are furnished to do so, subject to |
+** the following conditions: |
+** |
+** The above copyright notice and this permission notice shall be included |
+** in all copies or substantial portions of the Materials. |
+** |
+** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
+** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
+** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
+** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
+** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
+** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
+** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. |
+*/ |
+ |
+--> |
+ |
+<!DOCTYPE html> |
+<html> |
+<head> |
+<meta charset="utf-8"> |
+<title>WebGL OES_vertex_array_object Conformance Tests</title> |
+<link rel="stylesheet" href="../../resources/js-test-style.css"/> |
+<script src="../../resources/desktop-gl-constants.js" type="text/javascript"></script> |
+<script src="../../resources/js-test-pre.js"></script> |
+<script src="../resources/webgl-test.js"></script> |
+<script src="../resources/webgl-test-utils.js"></script> |
+<!-- comment in the script tag below to test through JS emualation of the extension. --> |
+<!-- |
+<script src="../../../demos/google/resources/OESVertexArrayObject.js"></script> |
+--> |
+</head> |
+<body> |
+<div id="description"></div> |
+<canvas id="canvas" style="width: 50px; height: 50px;"> </canvas> |
+<div id="console"></div> |
+<script id="vshader" type="x-shader/x-vertex"> |
+attribute vec4 a_position; |
+attribute vec4 a_color; |
+varying vec4 v_color; |
+void main(void) { |
+ gl_Position = a_position; |
+ v_color = a_color; |
+} |
+</script> |
+<script id="fshader" type="x-shader/x-fragment"> |
+precision mediump float; |
+varying vec4 v_color; |
+void main(void) { |
+ gl_FragColor = v_color; |
+} |
+</script> |
+<script> |
+"use strict"; |
+description("This test verifies the functionality of the OES_vertex_array_object extension, if it is available."); |
+ |
+debug(""); |
+ |
+var wtu = WebGLTestUtils; |
+var canvas = document.getElementById("canvas"); |
+var gl = wtu.create3DContext(canvas); |
+var ext = null; |
+var vao = null; |
+ |
+if (!gl) { |
+ testFailed("WebGL context does not exist"); |
+} else { |
+ testPassed("WebGL context exists"); |
+ |
+ // Setup emulated OESVertexArrayObject if it has been included. |
+ if (window.setupVertexArrayObject) { |
+ debug("using emuated OES_vertex_array_object"); |
+ setupVertexArrayObject(gl); |
+ } |
+ |
+ // Run tests with extension disabled |
+ runBindingTestDisabled(); |
+ |
+ // Query the extension and store globally so shouldBe can access it |
+ ext = gl.getExtension("OES_vertex_array_object"); |
+ if (!ext) { |
+ testPassed("No OES_vertex_array_object support -- this is legal"); |
+ |
+ runSupportedTest(false); |
+ } else { |
+ testPassed("Successfully enabled OES_vertex_array_object extension"); |
+ |
+ runSupportedTest(true); |
+ runBindingTestEnabled(); |
+ runObjectTest(); |
+ runAttributeTests(); |
+ runAttributeValueTests(); |
+ runDrawTests(); |
+ runDeleteTests(); |
+ runArrayBufferBindTests(); |
+ glErrorShouldBe(gl, gl.NO_ERROR, "there should be no errors"); |
+ } |
+} |
+ |
+function runSupportedTest(extensionEnabled) { |
+ var supported = gl.getSupportedExtensions(); |
+ if (supported.indexOf("OES_vertex_array_object") >= 0) { |
+ if (extensionEnabled) { |
+ testPassed("OES_vertex_array_object listed as supported and getExtension succeeded"); |
+ } else { |
+ testFailed("OES_vertex_array_object listed as supported but getExtension failed"); |
+ } |
+ } else { |
+ if (extensionEnabled) { |
+ testFailed("OES_vertex_array_object not listed as supported but getExtension succeeded"); |
+ } else { |
+ testPassed("OES_vertex_array_object not listed as supported and getExtension failed -- this is legal"); |
+ } |
+ } |
+} |
+ |
+function runBindingTestDisabled() { |
+ debug("Testing binding enum with extension disabled"); |
+ |
+ // Use the constant directly as we don't have the extension |
+ var VERTEX_ARRAY_BINDING_OES = 0x85B5; |
+ |
+ gl.getParameter(VERTEX_ARRAY_BINDING_OES); |
+ glErrorShouldBe(gl, gl.INVALID_ENUM, "VERTEX_ARRAY_BINDING_OES should not be queryable if extension is disabled"); |
+} |
+ |
+function runBindingTestEnabled() { |
+ debug("Testing binding enum with extension enabled"); |
+ |
+ shouldBe("ext.VERTEX_ARRAY_BINDING_OES", "0x85B5"); |
+ |
+ gl.getParameter(ext.VERTEX_ARRAY_BINDING_OES); |
+ glErrorShouldBe(gl, gl.NO_ERROR, "VERTEX_ARRAY_BINDING_OES query should succeed if extension is enable"); |
+ |
+ // Default value is null |
+ if (gl.getParameter(ext.VERTEX_ARRAY_BINDING_OES) === null) { |
+ testPassed("Default value of VERTEX_ARRAY_BINDING_OES is null"); |
+ } else { |
+ testFailed("Default value of VERTEX_ARRAY_BINDING_OES is not null"); |
+ } |
+ |
+ debug("Testing binding a VAO"); |
+ var vao0 = ext.createVertexArrayOES(); |
+ var vao1 = ext.createVertexArrayOES(); |
+ shouldBeNull("gl.getParameter(ext.VERTEX_ARRAY_BINDING_OES)"); |
+ ext.bindVertexArrayOES(vao0); |
+ if (gl.getParameter(ext.VERTEX_ARRAY_BINDING_OES) == vao0) { |
+ testPassed("gl.getParameter(ext.VERTEX_ARRAY_BINDING_OES) is expected VAO"); |
+ } else { |
+ testFailed("gl.getParameter(ext.VERTEX_ARRAY_BINDING_OES) is not expected VAO") |
+ } |
+ ext.bindVertexArrayOES(vao1); |
+ if (gl.getParameter(ext.VERTEX_ARRAY_BINDING_OES) == vao1) { |
+ testPassed("gl.getParameter(ext.VERTEX_ARRAY_BINDING_OES) is expected VAO"); |
+ } else { |
+ testFailed("gl.getParameter(ext.VERTEX_ARRAY_BINDING_OES) is not expected VAO") |
+ } |
+ ext.deleteVertexArrayOES(vao1); |
+ shouldBeNull("gl.getParameter(ext.VERTEX_ARRAY_BINDING_OES)"); |
+ ext.bindVertexArrayOES(vao1); |
+ glErrorShouldBe(gl, gl.INVALID_OPERATION, "binding a deleted vertex array object"); |
+ ext.bindVertexArrayOES(null); |
+ shouldBeNull("gl.getParameter(ext.VERTEX_ARRAY_BINDING_OES)"); |
+ ext.deleteVertexArrayOES(vao1); |
+} |
+ |
+function runObjectTest() { |
+ debug("Testing object creation"); |
+ |
+ vao = ext.createVertexArrayOES(); |
+ glErrorShouldBe(gl, gl.NO_ERROR, "createVertexArrayOES should not set an error"); |
+ shouldBeNonNull("vao"); |
+ |
+ // Expect false if never bound |
+ shouldBeFalse("ext.isVertexArrayOES(vao)"); |
+ ext.bindVertexArrayOES(vao); |
+ shouldBeTrue("ext.isVertexArrayOES(vao)"); |
+ ext.bindVertexArrayOES(null); |
+ shouldBeTrue("ext.isVertexArrayOES(vao)"); |
+ |
+ shouldBeFalse("ext.isVertexArrayOES(null)"); |
+ |
+ ext.deleteVertexArrayOES(vao); |
+ vao = null; |
+} |
+ |
+function runAttributeTests() { |
+ debug("Testing attributes work across bindings"); |
+ |
+ var states = []; |
+ |
+ var attrCount = gl.getParameter(gl.MAX_VERTEX_ATTRIBS); |
+ for (var n = 0; n < attrCount; n++) { |
+ gl.bindBuffer(gl.ARRAY_BUFFER, null); |
+ gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, null); |
+ |
+ var state = {}; |
+ states.push(state); |
+ |
+ var vao = state.vao = ext.createVertexArrayOES(); |
+ ext.bindVertexArrayOES(vao); |
+ |
+ var enableArray = (n % 2 == 0); |
+ if (enableArray) { |
+ gl.enableVertexAttribArray(n); |
+ } else { |
+ gl.disableVertexAttribArray(n); |
+ } |
+ |
+ if (enableArray) { |
+ var buffer = state.buffer = gl.createBuffer(); |
+ gl.bindBuffer(gl.ARRAY_BUFFER, buffer); |
+ gl.bufferData(gl.ARRAY_BUFFER, 1024, gl.STATIC_DRAW); |
+ |
+ gl.vertexAttribPointer(n, 1 + n % 4, gl.FLOAT, true, n * 4, n * 4); |
+ } |
+ |
+ if (enableArray) { |
+ var elbuffer = state.elbuffer = gl.createBuffer(); |
+ gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, elbuffer); |
+ gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, 1024, gl.STATIC_DRAW); |
+ } |
+ |
+ ext.bindVertexArrayOES(null); |
+ } |
+ |
+ var anyMismatch = false; |
+ for (var n = 0; n < attrCount; n++) { |
+ var state = states[n]; |
+ |
+ ext.bindVertexArrayOES(state.vao); |
+ |
+ var shouldBeEnabled = (n % 2 == 0); |
+ var isEnabled = gl.getVertexAttrib(n, gl.VERTEX_ATTRIB_ARRAY_ENABLED); |
+ if (shouldBeEnabled != isEnabled) { |
+ testFailed("VERTEX_ATTRIB_ARRAY_ENABLED not preserved"); |
+ anyMismatch = true; |
+ } |
+ |
+ var buffer = gl.getVertexAttrib(n, gl.VERTEX_ATTRIB_ARRAY_BUFFER_BINDING); |
+ if (shouldBeEnabled) { |
+ if (buffer == state.buffer) { |
+ // Matched |
+ if ((gl.getVertexAttrib(n, gl.VERTEX_ATTRIB_ARRAY_SIZE) == 1 + n % 4) && |
+ (gl.getVertexAttrib(n, gl.VERTEX_ATTRIB_ARRAY_TYPE) == gl.FLOAT) && |
+ (gl.getVertexAttrib(n, gl.VERTEX_ATTRIB_ARRAY_NORMALIZED) == true) && |
+ (gl.getVertexAttrib(n, gl.VERTEX_ATTRIB_ARRAY_STRIDE) == n * 4) && |
+ (gl.getVertexAttribOffset(n, gl.VERTEX_ATTRIB_ARRAY_POINTER) == n * 4)) { |
+ // Matched |
+ } else { |
+ testFailed("VERTEX_ATTRIB_ARRAY_* not preserved"); |
+ anyMismatch = true; |
+ } |
+ } else { |
+ testFailed("VERTEX_ATTRIB_ARRAY_BUFFER_BINDING not preserved"); |
+ anyMismatch = true; |
+ } |
+ } else { |
+ // GL_CURRENT_VERTEX_ATTRIB is not preserved |
+ if (buffer) { |
+ testFailed("VERTEX_ATTRIB_ARRAY_BUFFER_BINDING not preserved"); |
+ anyMismatch = true; |
+ } |
+ } |
+ |
+ var elbuffer = gl.getParameter(gl.ELEMENT_ARRAY_BUFFER_BINDING); |
+ if (shouldBeEnabled) { |
+ if (elbuffer == state.elbuffer) { |
+ // Matched |
+ } else { |
+ testFailed("ELEMENT_ARRAY_BUFFER_BINDING not preserved"); |
+ anyMismatch = true; |
+ } |
+ } else { |
+ if (elbuffer == null) { |
+ // Matched |
+ } else { |
+ testFailed("ELEMENT_ARRAY_BUFFER_BINDING not preserved"); |
+ anyMismatch = true; |
+ } |
+ } |
+ } |
+ ext.bindVertexArrayOES(null); |
+ if (!anyMismatch) { |
+ testPassed("All attributes preserved across bindings"); |
+ } |
+ |
+ for (var n = 0; n < attrCount; n++) { |
+ var state = states[n]; |
+ ext.deleteVertexArrayOES(state.vao); |
+ } |
+} |
+ |
+function runAttributeValueTests() { |
+ debug("Testing that attribute values are not attached to bindings"); |
+ |
+ var v; |
+ var vao0 = ext.createVertexArrayOES(); |
+ var anyFailed = false; |
+ |
+ ext.bindVertexArrayOES(null); |
+ gl.vertexAttrib4f(0, 0, 1, 2, 3); |
+ |
+ v = gl.getVertexAttrib(0, gl.CURRENT_VERTEX_ATTRIB); |
+ if (!(v[0] == 0 && v[1] == 1 && v[2] == 2 && v[3] == 3)) { |
+ testFailed("Vertex attrib value not round-tripped?"); |
+ anyFailed = true; |
+ } |
+ |
+ ext.bindVertexArrayOES(vao0); |
+ |
+ v = gl.getVertexAttrib(0, gl.CURRENT_VERTEX_ATTRIB); |
+ if (!(v[0] == 0 && v[1] == 1 && v[2] == 2 && v[3] == 3)) { |
+ testFailed("Vertex attrib value reset across bindings"); |
+ anyFailed = true; |
+ } |
+ |
+ gl.vertexAttrib4f(0, 4, 5, 6, 7); |
+ ext.bindVertexArrayOES(null); |
+ |
+ v = gl.getVertexAttrib(0, gl.CURRENT_VERTEX_ATTRIB); |
+ if (!(v[0] == 4 && v[1] == 5 && v[2] == 6 && v[3] == 7)) { |
+ testFailed("Vertex attrib value bound to buffer"); |
+ anyFailed = true; |
+ } |
+ |
+ if (!anyFailed) { |
+ testPassed("Vertex attribute values are not attached to bindings") |
+ } |
+ |
+ ext.bindVertexArrayOES(null); |
+ ext.deleteVertexArrayOES(vao0); |
+} |
+ |
+function runDrawTests() { |
+ debug("Testing draws with various VAO bindings"); |
+ |
+ canvas.width = 50; canvas.height = 50; |
+ gl.viewport(0, 0, canvas.width, canvas.height); |
+ |
+ var vao0 = ext.createVertexArrayOES(); |
+ var vao1 = ext.createVertexArrayOES(); |
+ |
+ var opt_positionLocation = 0; |
+ var opt_texcoordLocation = 1; |
+ |
+ var program = wtu.setupSimpleTextureProgram(gl, opt_positionLocation, opt_texcoordLocation); |
+ |
+ function setupQuad(s) { |
+ var vertexObject = gl.createBuffer(); |
+ gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject); |
+ gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([ |
+ 1.0 * s, 1.0 * s, 0.0, |
+ -1.0 * s, 1.0 * s, 0.0, |
+ -1.0 * s, -1.0 * s, 0.0, |
+ 1.0 * s, 1.0 * s, 0.0, |
+ -1.0 * s, -1.0 * s, 0.0, |
+ 1.0 * s, -1.0 * s, 0.0]), gl.STATIC_DRAW); |
+ gl.enableVertexAttribArray(opt_positionLocation); |
+ gl.vertexAttribPointer(opt_positionLocation, 3, gl.FLOAT, false, 0, 0); |
+ |
+ var vertexObject = gl.createBuffer(); |
+ gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject); |
+ gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([ |
+ 1.0 * s, 1.0 * s, |
+ 0.0 * s, 1.0 * s, |
+ 0.0 * s, 0.0 * s, |
+ 1.0 * s, 1.0 * s, |
+ 0.0 * s, 0.0 * s, |
+ 1.0 * s, 0.0 * s]), gl.STATIC_DRAW); |
+ gl.enableVertexAttribArray(opt_texcoordLocation); |
+ gl.vertexAttribPointer(opt_texcoordLocation, 2, gl.FLOAT, false, 0, 0); |
+ }; |
+ |
+ function readLocation(x, y) { |
+ var pixels = new Uint8Array(1 * 1 * 4); |
+ gl.readPixels(x, y, 1, 1, gl.RGBA, gl.UNSIGNED_BYTE, pixels); |
+ return pixels; |
+ }; |
+ function testPixel(blackList, whiteList) { |
+ function testList(list, expected) { |
+ for (var n = 0; n < list.length; n++) { |
+ var l = list[n]; |
+ var x = -Math.floor(l * canvas.width / 2) + canvas.width / 2; |
+ var y = -Math.floor(l * canvas.height / 2) + canvas.height / 2; |
+ var source = readLocation(x, y); |
+ if (Math.abs(source[0] - expected) > 2) { |
+ return false; |
+ } |
+ } |
+ return true; |
+ } |
+ return testList(blackList, 0) && testList(whiteList, 255); |
+ }; |
+ function verifyDraw(drawNumber, s) { |
+ wtu.clearAndDrawUnitQuad(gl); |
+ var blackList = []; |
+ var whiteList = []; |
+ var points = [0.0, 0.2, 0.4, 0.6, 0.8, 1.0]; |
+ for (var n = 0; n < points.length; n++) { |
+ if (points[n] <= s) { |
+ blackList.push(points[n]); |
+ } else { |
+ whiteList.push(points[n]); |
+ } |
+ } |
+ if (testPixel(blackList, whiteList)) { |
+ testPassed("Draw " + drawNumber + " passed pixel test"); |
+ } else { |
+ testFailed("Draw " + drawNumber + " failed pixel test"); |
+ } |
+ }; |
+ |
+ // Setup all bindings |
+ setupQuad(1); |
+ ext.bindVertexArrayOES(vao0); |
+ setupQuad(0.5); |
+ ext.bindVertexArrayOES(vao1); |
+ setupQuad(0.25); |
+ |
+ // Verify drawing |
+ ext.bindVertexArrayOES(null); |
+ verifyDraw(0, 1); |
+ ext.bindVertexArrayOES(vao0); |
+ verifyDraw(1, 0.5); |
+ ext.bindVertexArrayOES(vao1); |
+ verifyDraw(2, 0.25); |
+ |
+ ext.bindVertexArrayOES(null); |
+ ext.deleteVertexArrayOES(vao0); |
+ ext.deleteVertexArrayOES(vao1); |
+ |
+ // Disable global vertex attrib array |
+ gl.disableVertexAttribArray(opt_positionLocation); |
+ gl.disableVertexAttribArray(opt_texcoordLocation); |
+ |
+ // Draw with values. |
+ var positionLoc = 0; |
+ var colorLoc = 1; |
+ var gridRes = 1; |
+ wtu.setupIndexedQuad(gl, gridRes, positionLoc); |
+ // Set the vertex color to red. |
+ gl.vertexAttrib4f(colorLoc, 1, 0, 0, 1); |
+ |
+ var vao0 = ext.createVertexArrayOES(); |
+ ext.bindVertexArrayOES(vao0); |
+ var program = wtu.setupSimpleVertexColorProgram(gl, positionLoc, colorLoc); |
+ wtu.setupIndexedQuad(gl, gridRes, positionLoc); |
+ // Set the vertex color to green. |
+ gl.vertexAttrib4f(colorLoc, 0, 1, 0, 1); |
+ wtu.clearAndDrawIndexedQuad(gl, gridRes); |
+ wtu.checkCanvas(gl, [0, 255, 0, 255], "should be green") |
+ ext.deleteVertexArrayOES(vao0); |
+ wtu.clearAndDrawIndexedQuad(gl, gridRes); |
+ wtu.checkCanvas(gl, [0, 255, 0, 255], "should be green") |
+} |
+ |
+function runDeleteTests() { |
+ debug("Testing using deleted buffers referenced by VAOs"); |
+ |
+ var program = wtu.setupProgram(gl, ["vshader", "fshader"], ["a_position", "a_color"]); |
+ gl.useProgram(program); |
+ |
+ var positionBuffer = gl.createBuffer(); |
+ gl.bindBuffer(gl.ARRAY_BUFFER, positionBuffer); |
+ gl.bufferData( |
+ gl.ARRAY_BUFFER, |
+ new Float32Array([ |
+ 1.0, 1.0, |
+ -1.0, 1.0, |
+ -1.0, -1.0, |
+ 1.0, -1.0]), |
+ gl.STATIC_DRAW); |
+ |
+ var colors = [ |
+ [255, 0, 0, 255], |
+ [ 0, 255, 0, 255], |
+ [ 0, 0, 255, 255], |
+ [ 0, 255, 255, 255] |
+ ]; |
+ var colorBuffers = []; |
+ var elementBuffers = []; |
+ var vaos = []; |
+ for (var ii = 0; ii < colors.length; ++ii) { |
+ var vao = ext.createVertexArrayOES(); |
+ vaos.push(vao); |
+ ext.bindVertexArrayOES(vao); |
+ // Set the position buffer |
+ gl.bindBuffer(gl.ARRAY_BUFFER, positionBuffer); |
+ gl.enableVertexAttribArray(0); |
+ gl.vertexAttribPointer(0, 2, gl.FLOAT, false, 0, 0); |
+ |
+ var elementBuffer = gl.createBuffer(); |
+ elementBuffers.push(elementBuffer); |
+ gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, elementBuffer); |
+ gl.bufferData( |
+ gl.ELEMENT_ARRAY_BUFFER, |
+ new Uint8Array([0, 1, 2, 0, 2, 3]), |
+ gl.STATIC_DRAW); |
+ |
+ // Setup the color attrib |
+ var color = colors[ii]; |
+ if (ii < 3) { |
+ var colorBuffer = gl.createBuffer(); |
+ colorBuffers.push(colorBuffer); |
+ gl.bindBuffer(gl.ARRAY_BUFFER, colorBuffer); |
+ gl.bufferData(gl.ARRAY_BUFFER, new Uint8Array( |
+ [ color[0], color[1], color[2], color[3], |
+ color[0], color[1], color[2], color[3], |
+ color[0], color[1], color[2], color[3], |
+ color[0], color[1], color[2], color[3] |
+ ]), gl.STATIC_DRAW); |
+ gl.enableVertexAttribArray(1); |
+ gl.vertexAttribPointer(1, 4, gl.UNSIGNED_BYTE, true, 0, 0); |
+ } else { |
+ gl.vertexAttrib4f(1, color[0] / 255, color[1] / 255, color[2] / 255, color[3] / 255); |
+ } |
+ } |
+ |
+ // delete the color buffers AND the position buffer. |
+ ext.bindVertexArrayOES(null); |
+ for (var ii = 0; ii < colorBuffers.length; ++ii) { |
+ gl.deleteBuffer(colorBuffers[ii]); |
+ gl.deleteBuffer(elementBuffers[ii]); |
+ // The buffers should still be valid at this point, since it was attached to the VAO |
+ if(!gl.isBuffer(colorBuffers[ii])) { |
+ testFailed("buffer removed too early"); |
+ } |
+ } |
+ gl.deleteBuffer(positionBuffer); |
+ |
+ // Render with the deleted buffers. As they are referenced by VAOs they |
+ // must still be around. |
+ for (var ii = 0; ii < colors.length; ++ii) { |
+ var color = colors[ii]; |
+ ext.bindVertexArrayOES(vaos[ii]); |
+ gl.drawElements(gl.TRIANGLES, 6, gl.UNSIGNED_BYTE, 0); |
+ wtu.checkCanvas(gl, color, "should be " + color); |
+ } |
+ |
+ // Clean up. |
+ for (var ii = 0; ii < colorBuffers.length; ++ii) { |
+ ext.deleteVertexArrayOES(vaos[ii]); |
+ } |
+ |
+ for (var ii = 0; ii < colorBuffers.length; ++ii) { |
+ // The buffers should no longer be valid now that the VAOs are deleted |
+ if(gl.isBuffer(colorBuffers[ii])) { |
+ testFailed("buffer not properly cleaned up after VAO deletion"); |
+ } |
+ } |
+} |
+ |
+function runArrayBufferBindTests() { |
+ debug("Testing that VAOs don't effect ARRAY_BUFFER binding."); |
+ |
+ ext.bindVertexArrayOES(null); |
+ |
+ var program = wtu.setupProgram(gl, ["vshader", "fshader"], ["a_color", "a_position"]); |
+ gl.useProgram(program); |
+ |
+ // create shared element buuffer |
+ var elementBuffer = gl.createBuffer(); |
+ // bind to default |
+ gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, elementBuffer); |
+ gl.bufferData( |
+ gl.ELEMENT_ARRAY_BUFFER, |
+ new Uint8Array([0, 1, 2, 0, 2, 3]), |
+ gl.STATIC_DRAW); |
+ |
+ // first create the buffers for no vao draw. |
+ var nonVAOColorBuffer = gl.createBuffer(); |
+ gl.bindBuffer(gl.ARRAY_BUFFER, nonVAOColorBuffer); |
+ gl.bufferData(gl.ARRAY_BUFFER, new Uint8Array( |
+ [ 0, 255, 0, 255, |
+ 0, 255, 0, 255, |
+ 0, 255, 0, 255, |
+ 0, 255, 0, 255, |
+ ]), gl.STATIC_DRAW); |
+ |
+ // shared position buffer. |
+ var positionBuffer = gl.createBuffer(); |
+ gl.bindBuffer(gl.ARRAY_BUFFER, positionBuffer); |
+ gl.bufferData( |
+ gl.ARRAY_BUFFER, |
+ new Float32Array([ |
+ 1.0, 1.0, |
+ -1.0, 1.0, |
+ -1.0, -1.0, |
+ 1.0, -1.0]), |
+ gl.STATIC_DRAW); |
+ |
+ // attach position buffer to default |
+ gl.enableVertexAttribArray(1); |
+ gl.vertexAttribPointer(1, 2, gl.FLOAT, false, 0, 0); |
+ |
+ // now create vao |
+ var vao = ext.createVertexArrayOES(); |
+ ext.bindVertexArrayOES(vao); |
+ |
+ // attach the position buffer vao |
+ gl.enableVertexAttribArray(1); |
+ gl.vertexAttribPointer(1, 2, gl.FLOAT, false, 0, 0); |
+ |
+ var vaoColorBuffer = gl.createBuffer(); |
+ gl.enableVertexAttribArray(0); |
+ gl.vertexAttribPointer(0, 4, gl.UNSIGNED_BYTE, true, 0, 0); |
+ gl.bindBuffer(gl.ARRAY_BUFFER, vaoColorBuffer); |
+ gl.bufferData(gl.ARRAY_BUFFER, new Uint8Array( |
+ [ 255, 0, 0, 255, |
+ 255, 0, 0, 255, |
+ 255, 0, 0, 255, |
+ 255, 0, 0, 255, |
+ ]), gl.STATIC_DRAW); |
+ gl.enableVertexAttribArray(0); |
+ gl.vertexAttribPointer(0, 4, gl.UNSIGNED_BYTE, true, 0, 0); |
+ |
+ // now set the buffer back to the nonVAOColorBuffer |
+ gl.bindBuffer(gl.ARRAY_BUFFER, nonVAOColorBuffer); |
+ |
+ // bind to vao |
+ gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, elementBuffer); |
+ gl.drawElements(gl.TRIANGLES, 6, gl.UNSIGNED_BYTE, 0); |
+ wtu.checkCanvas(gl, [255, 0, 0, 255], "should be red"); |
+ |
+ // unbind vao |
+ ext.bindVertexArrayOES(null); |
+ |
+ // At this point the nonVAOColorBuffer should be still be bound. |
+ // If the WebGL impl is emulating VAOs it must make sure |
+ // it correctly restores this binding. |
+ gl.enableVertexAttribArray(0); |
+ gl.vertexAttribPointer(0, 4, gl.UNSIGNED_BYTE, true, 0, 0); |
+ gl.drawElements(gl.TRIANGLES, 6, gl.UNSIGNED_BYTE, 0); |
+ wtu.checkCanvas(gl, [0, 255, 0, 255], "should be green"); |
+} |
+ |
+debug(""); |
+var successfullyParsed = true; |
+</script> |
+<script src="../../resources/js-test-post.js"></script> |
+ |
+</body> |
+</html> |
Property changes on: conformance/extensions/oes-vertex-array-object.html |
___________________________________________________________________ |
Added: svn:eol-style |
## -0,0 +1 ## |
+LF |
\ No newline at end of property |