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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /dom/canvas/test/webgl-conf/checkout/conformance2/reading/read-pixels-from-rgb8-into-pbo-bug.html | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/canvas/test/webgl-conf/checkout/conformance2/reading/read-pixels-from-rgb8-into-pbo-bug.html')
-rw-r--r-- | dom/canvas/test/webgl-conf/checkout/conformance2/reading/read-pixels-from-rgb8-into-pbo-bug.html | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance2/reading/read-pixels-from-rgb8-into-pbo-bug.html b/dom/canvas/test/webgl-conf/checkout/conformance2/reading/read-pixels-from-rgb8-into-pbo-bug.html new file mode 100644 index 0000000000..b4f91f1d3c --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance2/reading/read-pixels-from-rgb8-into-pbo-bug.html @@ -0,0 +1,85 @@ +<!-- +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 2 Conformance Test: readPixels from RGB8 Buffer Into Pixel Pack Buffer.</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="4" height="4"></canvas> +<div id="description"></div> +<div id="console"></div> +<script> +"use strict"; + +debug(""); +description("Verifies readPixels from RGB8 buffer into PIXEL_PACK buffer works"); + +debug("On MacOSX with AMD GPUs, the alpha channel is readback as 0 instead of 255"); + +var wtu = WebGLTestUtils; +var pixel = [0, 0, 0, 0]; +var expectedColor = [255, 102, 0, 255]; + +var canvas = document.getElementById("example"); +var gl = wtu.create3DContext(canvas, undefined, 2); + +if (!gl) { + testFailed("context does not exist"); +} else { + testPassed("context exists"); + + var width = 4; + var height = 4; + + var renderbuffer = gl.createRenderbuffer(); + gl.bindRenderbuffer(gl.RENDERBUFFER, renderbuffer); + gl.renderbufferStorage(gl.RENDERBUFFER, gl.RGB8, width, height); + + var fbo = gl.createFramebuffer(); + gl.bindFramebuffer(gl.FRAMEBUFFER, fbo); + gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, renderbuffer); + + if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) != gl.FRAMEBUFFER_COMPLETE) { + testFailed("framebuffer with RGB8 color buffer is incomplete"); + } else { + gl.clearColor(1.0, 0.0, 0.0, 1.0); + gl.clear(gl.COLOR_BUFFER_BIT); + + var pbo = gl.createBuffer(); + gl.bindBuffer(gl.PIXEL_PACK_BUFFER, pbo); + gl.bufferData(gl.PIXEL_PACK_BUFFER, width * height * 4, gl.STATIC_COPY); + + gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, 0); + + var data = new Uint8Array(width * height * 4); + gl.getBufferSubData(gl.PIXEL_PACK_BUFFER, 0, data); + + for (var ii = 0; ii < width * height; ++ii) { + if (data[ii * 4] != 255 || + data[ii * 4 + 1] != 0 || + data[ii * 4 + 2] != 0 || + data[ii * 4 + 3] != 255) { + testFailed("Expected in pixel " + ii + ": [255,0,0,255], got: " + + [data[ii * 4], data[ii * 4 + 1], data[ii * 4 + 2], data[ii * 4 + 3]]); + break; + } + } + } + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Tests should complete without gl errors"); +} + +debug(""); +var successfullyParsed = true; +</script> +<script src="../../js/js-test-post.js"></script> +</body> +</html> |