[Mesa-dev] [PATCH] gallium/docs: clarify get_query_result()

[Marek Olšák]

Hi Rob,

Roland is right.

The function which resets the query result is begin_query.

Marek

On Tue, May 13, 2014 at 4:21 AM, Rob Clark <robdclark at gmail.com> wrote:
> From: Rob Clark <robclark at freedesktop.org>
>
> It wasn't completely clear from the docs, so I had to figure out by
> looking at piglit results.  Hopefully this saves the next driver writer
> implementing queries some time.
>
> Signed-off-by: Rob Clark <robclark at freedesktop.org>
> ---
>  src/gallium/docs/source/context.rst | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/src/gallium/docs/source/context.rst b/src/gallium/docs/source/context.rst
> index fc8dd16..9278796 100644
> --- a/src/gallium/docs/source/context.rst
> +++ b/src/gallium/docs/source/context.rst
> @@ -307,6 +307,10 @@ 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.
>
> +``get_query_result`` (if it returns TRUE) will clear/reset previous query
> +results.  In other words, subsequent calls to ``get_query_result`` will
> +only return results since the previous call.
> +
>  The interface currently includes the following types of queries:
>
>  ``PIPE_QUERY_OCCLUSION_COUNTER`` counts the number of fragments which
> --
> 1.9.0
>
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