0,0 → 1,47 |
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<title>Debugging Tips</title> |
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<h1>The Mesa 3D Graphics Library</h1> |
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<h1>Debugging Tips</h1> |
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<p> |
Normally Mesa (and OpenGL) records but does not notify the user of |
errors. It is up to the application to call |
<code>glGetError</code> to check for errors. Mesa supports an |
environment variable, MESA_DEBUG, to help with debugging. If |
MESA_DEBUG is defined, a message will be printed to stdout whenever |
an error occurs. |
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<p> |
More extensive error checking is done when Mesa is compiled with the |
DEBUG symbol defined. You'll have to edit the Make-config file and |
add -DDEBUG to the CFLAGS line for your system configuration. You may |
also want to replace any optimization flags with the -g flag so you can |
use your debugger. After you've edited Make-config type 'make clean' |
before recompiling. |
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In your debugger you can set a breakpoint in _mesa_error() to trap Mesa |
errors. |
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There is a display list printing/debugging facility. See the end of |
src/dlist.c for details. |
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