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| author | marha <marha@users.sourceforge.net> | 2013-04-08 08:20:47 +0200 |
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| committer | marha <marha@users.sourceforge.net> | 2013-04-08 08:20:47 +0200 |
| commit | a4505330e3469b6956348812ff2d6c24f812a8ba (patch) | |
| tree | cf2b88c771188580ab585f763d2e7a0309ecab26 /mesalib/docs/application-issues.html | |
| parent | 44fb3db38c5148666f62c78e10fc37bb20ed5c5c (diff) | |
| parent | 95fb19d661154ba8cfc6c793a0daa25657294b3b (diff) | |
| download | vcxsrv-a4505330e3469b6956348812ff2d6c24f812a8ba.tar.gz vcxsrv-a4505330e3469b6956348812ff2d6c24f812a8ba.tar.bz2 vcxsrv-a4505330e3469b6956348812ff2d6c24f812a8ba.zip | |
Merge remote-tracking branch 'origin/released'
* origin/released:
fontconfig libXau mesa xserver xkeyboard-config git update 8 Apr 2013
Diffstat (limited to 'mesalib/docs/application-issues.html')
| -rw-r--r-- | mesalib/docs/application-issues.html | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/mesalib/docs/application-issues.html b/mesalib/docs/application-issues.html new file mode 100644 index 000000000..6db086585 --- /dev/null +++ b/mesalib/docs/application-issues.html @@ -0,0 +1,83 @@ +<!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"> + <h1>The Mesa 3D Graphics Library</h1> +</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="http://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 +<pre> +export MESA_EXTENSION_MAX_YEAR=2001 +</pre> +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> |