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Diffstat (limited to '')
-rw-r--r-- | dom/canvas/test/webgl-conf/checkout/conformance/buffers/element-array-buffer-delete-recreate.html | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/buffers/element-array-buffer-delete-recreate.html b/dom/canvas/test/webgl-conf/checkout/conformance/buffers/element-array-buffer-delete-recreate.html new file mode 100644 index 0000000000..d4fb81af9b --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance/buffers/element-array-buffer-delete-recreate.html @@ -0,0 +1,69 @@ +<!-- +Copyright (c) 2019 The Khronos Group Inc. +Use of this source code is governed by an MIT-style license that can be +found in the LICENSE.txt file. +--> +<!DOCTYPE html> +<html> +<head> +<meta charset="utf-8"> + <title>Element Array Buffer Deletion and Recreation Test</title> + <link rel="stylesheet" href="../../resources/js-test-style.css"/> + <script src="../../js/js-test-pre.js"></script> + <script src="../../js/webgl-test-utils.js"> </script> +</head> +<body> +<canvas id="example" width="32" height="32"></canvas> +<div id="description"></div> +<div id="console"></div> +<script> +"use strict"; +var wtu = WebGLTestUtils; +function init() +{ + description(); + + // Clear the background with red. + var gl = wtu.create3DContext("example"); + wtu.setupSimpleColorProgram(gl); + var color = [0, 255, 0, 255]; + wtu.setUByteDrawColor(gl, color); + + var vertexBuffer = gl.createBuffer(); + gl.bindBuffer(gl.ARRAY_BUFFER, vertexBuffer); + gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([ + -1, -1, + 1, -1, + -1, 1, + 1, 1 + ]), gl.STATIC_DRAW); + gl.enableVertexAttribArray(0); + gl.vertexAttribPointer(0, 2, gl.FLOAT, false, 0, 0); + + // Create an element array buffer. + var indexBuffer = gl.createBuffer(); + gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, indexBuffer); + gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint8Array([0, 1, 2, 3]), gl.STATIC_DRAW); + + // Delete the element array buffer. + gl.deleteBuffer(indexBuffer); + + // Create a new element array buffer. + indexBuffer = gl.createBuffer(); + gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, indexBuffer); + gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint8Array([0, 1, 2, 3]), gl.STATIC_DRAW); + + // Draw with the new element array buffer. + // If the geometry is drawn successfully, the fragment shader will color it green. + gl.drawElements(gl.TRIANGLE_STRIP, 4, gl.UNSIGNED_BYTE, 0); + + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "no errors from draw"); + wtu.checkCanvas(gl, color, "should be green") +} + +init(); +var successfullyParsed = true; +</script> +<script src="../../js/js-test-post.js"></script> +</body> +</html> |