[Mesa-dev] [PATCH] i965/miptree: Set supports_fast_clear = false in make_shareable

[Tapani Pälli]

Reviewed-by: Tapani Pälli <tapani.palli at intel.com>

On 08/03/2017 07:52 PM, Jason Ekstrand wrote:
> The make_shareable function deletes the aux buffer and then whacks
> aux_usage to ISL_AUX_USAGE_NONE but not unsetting supports_fast_clear.
> Since we only look at supports_fast_clear to decide whether or not to do
> fast clears, this was causing assertion failures.
> 
> Reported-by: Tapani Pälli <tapani.palli at intel.com>
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101925
> ---
>   src/mesa/drivers/dri/i965/intel_mipmap_tree.c | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
> index 17ac563..6fca7e3 100644
> --- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
> +++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
> @@ -2706,6 +2706,7 @@ intel_miptree_make_shareable(struct brw_context *brw,
>      }
>   
>      mt->aux_usage = ISL_AUX_USAGE_NONE;
> +   mt->supports_fast_clear = false;
>   }
>   
>   
>