[Mesa-dev] [PATCH] swr: limit pipe_draw_info->restart_index usage

[Cherniak, Bruce]

Reviewed-by: Bruce Cherniak <bruce.cherniak at intel.com> 

> On Aug 23, 2017, at 11:19 AM, Tim Rowley <timothy.o.rowley at intel.com> wrote:
> 
> Only copy this value when in restart drawing mode.
> 
> Eliminates valgrind errors when running trivial programs.
> ---
> src/gallium/drivers/swr/swr_draw.cpp | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/src/gallium/drivers/swr/swr_draw.cpp b/src/gallium/drivers/swr/swr_draw.cpp
> index df1c11a..2363800 100644
> --- a/src/gallium/drivers/swr/swr_draw.cpp
> +++ b/src/gallium/drivers/swr/swr_draw.cpp
> @@ -107,7 +107,10 @@ swr_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
>    }
> 
>    struct swr_vertex_element_state *velems = ctx->velems;
> -   velems->fsState.cutIndex = info->restart_index;
> +   if (info->primitive_restart)
> +      velems->fsState.cutIndex = info->restart_index;
> +   else
> +      velems->fsState.cutIndex = 0;
>    velems->fsState.bEnableCutIndex = info->primitive_restart;
>    velems->fsState.bPartialVertexBuffer = (info->min_index > 0);
> 
> -- 
> 2.7.4
> 
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