1 <!DOCTYPE HTML PUBLIC
"-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
4 <meta http-equiv=
"content-type" content=
"text/html; charset=utf-8">
5 <title>Debugging Tips
</title>
6 <link rel=
"stylesheet" type=
"text/css" href=
"mesa.css">
11 The Mesa
3D Graphics Library
14 <iframe src=
"contents.html"></iframe>
17 <h1>Debugging Tips
</h1>
20 Normally Mesa (and OpenGL) records but does not notify the user of
21 errors. It is up to the application to call
22 <code>glGetError
</code> to check for errors. Mesa supports an
23 environment variable, MESA_DEBUG, to help with debugging. If
24 MESA_DEBUG is defined, a message will be printed to stdout whenever
29 More extensive error checking is done in DEBUG builds
30 (
<code>--buildtype debug
</code> for meson,
<code>build=debug
</code> for scons).
33 In your debugger you can set a breakpoint in _mesa_error() to trap Mesa
37 There is a display list printing/debugging facility. See the end of
38 src/dlist.c for details.