[Mesa-stable] [PATCH] st/mesa: add osmesa framebuffer iface hash table per st manager

[Brian Paul]

I'll let Charmaine review, but the subject line prefix should probably 
be "st/osmesa".

-Brian

On 08/02/2017 05:28 PM, Bruce Cherniak wrote:
> Commit bbc29393d3 didn't include osmesa state_tracker.  This patch adds
> necessary initialization.
>
> Fixes crash in OSMesa initialization.
>
> Created-by: Charmaine Lee <charmainel at vmware.com>
> Tested-by: Bruce Cherniak <bruce.cherniak at intel.com>
>
> Cc: Charmaine Lee <charmainel at vmware.com>
> Cc: 17.2 <mesa-stable at lists.freedesktop.org>
> ---
>   src/gallium/state_trackers/osmesa/osmesa.c | 11 +++++++++++
>   1 file changed, 11 insertions(+)
>
> diff --git a/src/gallium/state_trackers/osmesa/osmesa.c b/src/gallium/state_trackers/osmesa/osmesa.c
> index 18f1b88128..751d255c54 100644
> --- a/src/gallium/state_trackers/osmesa/osmesa.c
> +++ b/src/gallium/state_trackers/osmesa/osmesa.c
> @@ -439,6 +439,7 @@ osmesa_st_framebuffer_validate(struct st_context_iface *stctx,
>      return TRUE;
>   }
>
> +static uint32_t osmesa_fb_ID = 0;
>
>   static struct st_framebuffer_iface *
>   osmesa_create_st_framebuffer(void)
> @@ -448,6 +449,8 @@ osmesa_create_st_framebuffer(void)
>         stfbi->flush_front = osmesa_st_framebuffer_flush_front;
>         stfbi->validate = osmesa_st_framebuffer_validate;
>         p_atomic_set(&stfbi->stamp, 1);
> +      stfbi->ID = p_atomic_inc_return(&osmesa_fb_ID);
> +      stfbi->state_manager = get_st_manager();
>      }
>      return stfbi;
>   }
> @@ -508,6 +511,14 @@ osmesa_find_buffer(enum pipe_format color_format,
>   static void
>   osmesa_destroy_buffer(struct osmesa_buffer *osbuffer)
>   {
> +   struct st_api *stapi = get_st_api();
> +
> +   /*
> +    * Notify the state manager that the associated framebuffer interface
> +    * is no longer valid.
> +    */
> +   stapi->destroy_drawable(stapi, osbuffer->stfb);
> +
>      FREE(osbuffer->stfb);
>      FREE(osbuffer);
>   }
>