[Mesa-dev] [PATCH] u_vbuf: fix vb slot assignment for translated buffers

[Marek Olšák]

Nice catch. Please add this to the commit message:

Cc: mesa-stable at lists.freedesktop.org

It will be automatically picked for 11.0 after you push it.

Marek

On Sun, Oct 4, 2015 at 12:09 PM, Nicolai Hähnle <nhaehnle at gmail.com> wrote:
> Vertex attributes of different categories (constant/per-instance/
> per-vertex) go into different buffers for translation, and this is now
> properly reflected in the vertex buffers passed to the driver.
>
> Fixes e.g. piglit's point-vertex-id divisor test.
> ---
>  src/gallium/auxiliary/util/u_vbuf.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/src/gallium/auxiliary/util/u_vbuf.c b/src/gallium/auxiliary/util/u_vbuf.c
> index 3d2193c..b31ada1 100644
> --- a/src/gallium/auxiliary/util/u_vbuf.c
> +++ b/src/gallium/auxiliary/util/u_vbuf.c
> @@ -544,6 +544,7 @@ u_vbuf_translate_find_free_vb_slots(struct u_vbuf *mgr,
>
>           index = ffs(unused_vb_mask) - 1;
>           fallback_vbs[type] = index;
> +         unused_vb_mask &= ~(1 << index);
>           /*printf("found slot=%i for type=%i\n", index, type);*/
>        }
>     }
> --
> 2.1.4
>
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