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Diffstat (limited to 'src/gallium/docs')
| -rw-r--r-- | src/gallium/docs/source/context.rst | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/gallium/docs/source/context.rst b/src/gallium/docs/source/context.rst index 6760e7be4b..f0d3b84783 100644 --- a/src/gallium/docs/source/context.rst +++ b/src/gallium/docs/source/context.rst @@ -233,6 +233,11 @@ The most common type of query is the occlusion query, 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. +In cases where a boolean result of an occlusion query is enough, +``PIPE_QUERY_OCCLUSION_PREDICATE`` should be used. It is just like +``PIPE_QUERY_OCCLUSION_COUNTER`` except that the result is a boolean +value of FALSE for cases where COUNTER would result in 0 and TRUE +for all other cases. Another type of query, ``PIPE_QUERY_TIME_ELAPSED``, returns the amount of time, in nanoseconds, the context takes to perform operations. |