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gallium/docs: document result type for some types of queries

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Brian Paul 2011-01-18 16:34:22 -07:00
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src/gallium/docs/source/context.rst
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@ -232,9 +232,11 @@ The most common type of query is the occlusion query,
``PIPE_QUERY_OCCLUSION_COUNTER``, which counts the number of fragments which
are written to the framebuffer without being culled by
:ref:`Depth, Stencil, & Alpha` testing or shader KILL instructions.
The result is an unsigned 64-bit integer.
Another type of query, ``PIPE_QUERY_TIME_ELAPSED``, returns the amount of
time, in nanoseconds, the context takes to perform operations.
The result is an unsigned 64-bit integer.
Gallium does not guarantee the availability of any query types; one must
always check the capabilities of the :ref:`Screen` first.