diff options
| -rw-r--r-- | src/gallium/docs/source/context.rst | 13 | ||||
| -rw-r--r-- | src/gallium/docs/source/screen.rst | 3 |
2 files changed, 13 insertions, 3 deletions
diff --git a/src/gallium/docs/source/context.rst b/src/gallium/docs/source/context.rst index c82e681a25..66028a63b5 100644 --- a/src/gallium/docs/source/context.rst +++ b/src/gallium/docs/source/context.rst @@ -200,9 +200,16 @@ returned). Otherwise, if the ``wait`` parameter is FALSE, the call will not block and the return value will be TRUE if the query has completed or FALSE otherwise. -A common type of query is the occlusion query which counts the number of -fragments/pixels which are written to the framebuffer (and not culled by -Z/stencil/alpha testing or shader KILL instructions). +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. + +Another type of query, ``PIPE_QUERY_TIME_ELAPSED``, returns the amount of +time, in milliseconds, the context takes to perform operations. + +Gallium does not guarantee the availability of any query types; one must +always check the capabilities of the :ref:`Screen` first. Conditional Rendering diff --git a/src/gallium/docs/source/screen.rst b/src/gallium/docs/source/screen.rst index 71b7aec35a..96257f93df 100644 --- a/src/gallium/docs/source/screen.rst +++ b/src/gallium/docs/source/screen.rst @@ -1,3 +1,5 @@ +.. _screen: + Screen ====== @@ -33,6 +35,7 @@ The integer capabilities: * ``MAX_RENDER_TARGETS``: The maximum number of render targets that may be bound. * ``OCCLUSION_QUERY``: Whether occlusion queries are available. +* ``TIMER_QUERY``: Whether timer queries are available. * ``TEXTURE_SHADOW_MAP``: XXX * ``MAX_TEXTURE_2D_LEVELS``: The maximum number of mipmap levels available for a 2D texture. |