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<!--
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>WebGL buffer deletion behavior 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>
<div id="description"></div>
<div id="console"></div>
<script>
"use strict";
description("Test buffer deletion behavior.");
// This is a regression test for https://crbug.com/822976
var wtu = WebGLTestUtils;
var gl = wtu.create3DContext(undefined, undefined, 2);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
function runTexImageTest(gl) {
debug("");
var buffer = gl.createBuffer();
gl.bindBuffer(gl.PIXEL_UNPACK_BUFFER, buffer);
gl.bufferData(gl.PIXEL_UNPACK_BUFFER, 4, gl.DYNAMIC_DRAW);
gl.bindBufferBase(gl.UNIFORM_BUFFER, 0, buffer);
gl.deleteBuffer(buffer);
// Indexed uniform buffer bindings should not prevent a buffer from being
// deleted. Therefore, PIXEL_UNPACK_BUFFER binding should also be 0.
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "no error");
var tex = gl.createTexture();
gl.bindTexture(gl.TEXTURE_2D, tex);
var data = new Uint8Array(1024);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA8, 16, 16, 0,
gl.RGBA, gl.UNSIGNED_BYTE, data);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "texImage2D should succeed");
// Clean up bindings just in case an implementation gets it wrong.
gl.bindBuffer(gl.PIXEL_UNPACK_BUFFER, null);
gl.bindBufferBase(gl.UNIFORM_BUFFER, 0, null);
}
function runReadPixelsTest(gl) {
debug("");
var buffer = gl.createBuffer();
gl.bindBuffer(gl.PIXEL_PACK_BUFFER, buffer);
gl.bufferData(gl.PIXEL_PACK_BUFFER, 4, gl.DYNAMIC_DRAW);
gl.bindBufferBase(gl.UNIFORM_BUFFER, 0, buffer);
gl.deleteBuffer(buffer);
// Indexed transform feedback buffer bindings should not prevent a buffer
// from being deleted. Therefore, PIXEL_PACK_BUFFER binding should also be 0.
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "no error");
var buffer = new Uint8Array(1024);
gl.readPixels(0, 0, 16, 16, gl.RGBA, gl.UNSIGNED_BYTE, buffer);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "readPixels should succeed");
// Clean up bindings just in case an implementation gets it wrong.
gl.bindBuffer(gl.PIXEL_PACK_BUFFER, null);
gl.bindBufferBase(gl.UNIFORM_BUFFER, 0, null);
}
runTexImageTest(gl);
runReadPixelsTest(gl);
debug("");
var successfullyParsed = true;
</script>
<script src="../../js/js-test-post.js"></script>
</body>
</html>
|
