diff options
| author | Brian Paul <[email protected]> | 2013-03-25 13:15:37 -0600 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2013-04-01 08:40:35 -0600 |
| commit | 99811c344b830c2aa7910a6723be7e7ef0e8b327 (patch) | |
| tree | f9266a7a16758801a04b0c1739e89afa6e13161d /docs/application-issues.html | |
| parent | fe30fa9ad669b2cce2e486ff53d560705a18c710 (diff) | |
docs: add a new page documenting known application issues
Let's try to update this when we find other broken applications...
Reviewed-by: José Fonseca <[email protected]>
Diffstat (limited to 'docs/application-issues.html')
| -rw-r--r-- | docs/application-issues.html | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/docs/application-issues.html b/docs/application-issues.html new file mode 100644 index 00000000000..6db08658549 --- /dev/null +++ b/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> |