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11 The Mesa
3D Graphics Library
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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,
<code>MESA_DEBUG
</code>, to help with debugging. If
24 <code>MESA_DEBUG
</code> is defined, a message will be printed to stdout
25 whenever an error occurs.
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
<code>_mesa_error()
</code> to trap
37 There is a display list printing/debugging facility. See the end of
38 <code>src/dlist.c
</code> for details.