Erik Faye-Lund
ecdab0dfea
It's generally frowned upon to have more than one H1 per document in HTML4. So let's put the text directly inside the header. This means we can drop the flex-based centering, which makes things a bit easier. We also need to change the padding to rem instead of em, because the em has now changed. Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com> Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
86 lines
2.0 KiB
HTML
86 lines
2.0 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
|
<html lang="en">
|
|
<head>
|
|
<meta http-equiv="content-type" content="text/html; charset=utf-8">
|
|
<title>Application Issues</title>
|
|
<link rel="stylesheet" type="text/css" href="mesa.css">
|
|
</head>
|
|
<body>
|
|
|
|
<div class="header">
|
|
The Mesa 3D Graphics Library
|
|
</div>
|
|
|
|
<iframe src="contents.html"></iframe>
|
|
<div class="content">
|
|
|
|
<h1>Application Issues</h1>
|
|
|
|
<p>
|
|
This page documents known issues with some OpenGL applications.
|
|
</p>
|
|
|
|
|
|
<h2>Topogun</h2>
|
|
|
|
<p>
|
|
<a href="http://www.topogun.com/">Topogun</a> for Linux (version 2, at least)
|
|
creates a GLX visual without requesting a depth buffer.
|
|
This causes bad rendering if the OpenGL driver happens to choose a visual
|
|
without a depth buffer.
|
|
</p>
|
|
|
|
<p>
|
|
Mesa 9.1.2 and later (will) support a DRI configuration option to work around
|
|
this issue.
|
|
Using the <a href="https://dri.freedesktop.org/wiki/DriConf">driconf</a> tool,
|
|
set the "Create all visuals with a depth buffer" option before running Topogun.
|
|
Then, all GLX visuals will be created with a depth buffer.
|
|
</p>
|
|
|
|
|
|
<h2>Old OpenGL games</h2>
|
|
|
|
<p>
|
|
Some old OpenGL games (approx. ten years or older) may crash during
|
|
start-up because of an extension string buffer-overflow problem.
|
|
</p>
|
|
|
|
<p>
|
|
The problem is a modern OpenGL driver will return a very long string
|
|
for the glGetString(GL_EXTENSIONS) query and if the application
|
|
naively copies the string into a fixed-size buffer it can overflow the
|
|
buffer and crash the application.
|
|
</p>
|
|
|
|
<p>
|
|
The work-around is to set the MESA_EXTENSION_MAX_YEAR environment variable
|
|
to the approximate release year of the game.
|
|
This will cause the glGetString(GL_EXTENSIONS) query to only report extensions
|
|
older than the given year.
|
|
</p>
|
|
|
|
<p>
|
|
For example, if the game was released in 2001, do
|
|
</p>
|
|
<pre>
|
|
export MESA_EXTENSION_MAX_YEAR=2001
|
|
</pre>
|
|
<p>
|
|
before running the game.
|
|
</p>
|
|
|
|
|
|
|
|
<h2>Viewperf</h2>
|
|
|
|
<p>
|
|
See the <a href="viewperf.html">Viewperf issues</a> page for a detailed list
|
|
of Viewperf issues.
|
|
</p>
|
|
|
|
|
|
</div>
|
|
</body>
|
|
</html>
|