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The leading underscore is meaningful... This function is used by
_warning and _error functions as well as the more common
debug_printf().
debug_printf (without underscore) gets turned off when DEBUG is
disabled, but warning/error messages still use this function to get
their message out.
(cherry picked from commit 0ac879dca797360570543d5bd0fd64f8fb8e566e)
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According to http://unixwiz.net/techtips/outputdebugstring.html that's
how big the buffer is.
The 512bytes limitation is in kernel mode.
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A lot of the mesa demos emit commentary on stdout, try to keep it in
sync with the corresponding output from debug_printf().
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The core reference counting code is centralized in p_refcnt.h.
This has some consequences related to struct pipe_buffer:
* The screen member of struct pipe_buffer must be initialized, or
pipe_buffer_reference() will crash trying to destroy a buffer with reference
count 0. u_simple_screen takes care of this, but I may have missed some of
the drivers not using it.
* Except for rare exceptions deep in winsys code, buffers must always be
allocated via pipe_buffer_create() or via screen->*buffer_create() rather
than via winsys->*buffer_create().
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Hard to believe... but true.
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When there is a console attached, and no debugger attached.
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Conflicts:
src/gallium/drivers/softpipe/sp_tile_cache.c
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The debug functions depend on several util function for os abstractions, and
these depend on debug functions, so a seperate module is not possible.
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