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authorNicolai Hähnle <[email protected]>2017-07-26 19:16:14 +0200
committerNicolai Hähnle <[email protected]>2017-08-02 09:37:10 +0200
commita677799e51a8d3651a8c963dac0a09ff0b282d63 (patch)
tree3fbed65a794ade42a0c86f025bdd21485a21ae0a /src/gallium/docs/source/context.rst
parentf444ac5e6026d58b77ffada92698773127c734cd (diff)
gallium: add PIPE_QUERY_SO_OVERFLOW_ANY_PREDICATE and corresponding cap
v2: rename cap to PIPE_CAP_QUERY_SO_OVERFLOW and be a bit more explicit in the documentation Reviewed-by: Roland Scheidegger <[email protected]> Reviewed-by: Marek Olšák <[email protected]>
Diffstat (limited to 'src/gallium/docs/source/context.rst')
-rw-r--r--src/gallium/docs/source/context.rst12
1 files changed, 10 insertions, 2 deletions
diff --git a/src/gallium/docs/source/context.rst b/src/gallium/docs/source/context.rst
index a46131c31fe..7002802248e 100644
--- a/src/gallium/docs/source/context.rst
+++ b/src/gallium/docs/source/context.rst
@@ -428,9 +428,17 @@ XXX the 2nd value is equivalent to ``PIPE_QUERY_PRIMITIVES_GENERATED`` but it is
unclear if it should be increased if stream output is not active.
``PIPE_QUERY_SO_OVERFLOW_PREDICATE`` returns a boolean value indicating
-whether the stream output targets have overflowed as a result of the
+whether a selected stream output target has overflowed as a result of the
commands issued between ``begin_query`` and ``end_query``.
-This query can be used with ``render_condition``.
+This query can be used with ``render_condition``. The output stream is
+selected by the stream number passed to ``create_query``.
+
+``PIPE_QUERY_SO_OVERFLOW_ANY_PREDICATE`` returns a boolean value indicating
+whether any stream output target has overflowed as a result of the commands
+issued between ``begin_query`` and ``end_query``. This query can be used
+with ``render_condition``, and its result is the logical OR of multiple
+``PIPE_QUERY_SO_OVERFLOW_PREDICATE`` queries, one for each stream output
+target.
``PIPE_QUERY_GPU_FINISHED`` returns a boolean value indicating whether
all commands issued before ``end_query`` have completed. However, this