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> |