| Index: third_party/WebKit/LayoutTests/fast/canvas/webgl/oes-vertex-array-object.html
|
| diff --git a/third_party/WebKit/LayoutTests/fast/canvas/webgl/oes-vertex-array-object.html b/third_party/WebKit/LayoutTests/fast/canvas/webgl/oes-vertex-array-object.html
|
| deleted file mode 100644
|
| index 394fb91b4a07c1215e4780863f59ccd0be9ea202..0000000000000000000000000000000000000000
|
| --- a/third_party/WebKit/LayoutTests/fast/canvas/webgl/oes-vertex-array-object.html
|
| +++ /dev/null
|
| @@ -1,599 +0,0 @@
|
| -<!DOCTYPE html>
|
| -<html>
|
| -<head>
|
| -<meta charset="utf-8">
|
| -<title>WebGL OES_vertex_array_object Conformance Tests</title>
|
| -<script src="resources/desktop-gl-constants.js" type="text/javascript"></script>
|
| -<script src="../../../resources/js-test.js"></script>
|
| -<script src="resources/webgl-test.js"></script>
|
| -<script src="resources/webgl-test-utils.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>
|
| -description("This test verifies the functionality of the OES_vertex_array_object extension, if it is available.");
|
| -
|
| -debug("");
|
| -
|
| -if (window.internals)
|
| - window.internals.settings.setWebGLErrorsToConsoleEnabled(false);
|
| -
|
| -var wtu = WebGLTestUtils;
|
| -var canvas = document.getElementById("canvas");
|
| -var gl = 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()");
|
| - 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);
|
| -
|
| - if (n % 2 == 0) {
|
| - gl.enableVertexAttribArray(n);
|
| - } else {
|
| - gl.disableVertexAttribArray(n);
|
| - }
|
| -
|
| - if (n % 2 == 0) {
|
| - 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 (n % 2 == 0) {
|
| - 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 isEnabled = gl.getVertexAttrib(n, gl.VERTEX_ATTRIB_ARRAY_ENABLED);
|
| - if ((n % 2 == 1) || isEnabled) {
|
| - // Valid
|
| - } else {
|
| - testFailed("VERTEX_ATTRIB_ARRAY_ENABLED not preserved");
|
| - anyMismatch = true;
|
| - }
|
| -
|
| - var buffer = gl.getVertexAttrib(n, gl.VERTEX_ATTRIB_ARRAY_BUFFER_BINDING);
|
| - if (n % 2 == 0) {
|
| - 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 (n % 2 == 0) {
|
| - 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 program = wtu.setupSimpleTextureProgram(gl, 0, 1);
|
| -
|
| - function setupQuad(s) {
|
| - var opt_positionLocation = 0;
|
| - var opt_texcoordLocation = 1;
|
| - 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.drawQuad(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);
|
| -}
|
| -
|
| -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("");
|
| -successfullyParsed = true;
|
| -isSuccessfullyParsed();
|
| -</script>
|
| -</body>
|
| -</html>
|
|
|