[cairo] [patch] subsurface: fix memory leak

[Chris Wilson]

On Thu, 14 Jun 2012 21:28:09 +0000, "Henry (Yu) Song - SISA" <hsong at sisa.samsung.com> wrote:
> Hi, Chris
> 
> How about this
> 
> commit 43fef9e03a453eecaf6fd5a83674de8928fc0d73
> Author: Henry Song <henry.song at samsung.com>
> Date:   Thu Jun 14 14:24:35 2012 -0700
> 
>     gl: we do not set snapshot of a subsurface, this causes a memory leak.
>     Instead, we roll our own dice

No, it fails to discard the cache if the target surface is updated, so
you end up using a stale copy.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre