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drm_api is a set of hooks used by the dri2 state tracker, this wraps our
dri1 code around the same set of hooks.
Currently the dri2 build will produce nouveau_dri2.so which you'll need
to install as nouveau_dri.so if you wish to try it. The dri2 state
tracker doesn't make it easy for a driver to support both paths in the
same binary.
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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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Add code so that existing driver behaviour doesn't change.
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Don't look at nouveau_winsys_pipe.h... I promise it's temporary!
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move it to pipe/internal/p_winsys_screen.h and start converting
the state trackers to the screen usage
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Sorry, but no, we're not doing this.. Correctness always takes precedence
over speed. Implement this higher up where you know it's safe to do so,
and doesn't break other things in the process.
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