[Mesa-dev] [PATCH 1/2] freedreno: a2xx: fix crash on first clear

[Ilia Mirkin]

On Wed, Jun 20, 2018 at 9:56 AM, Rob Clark <robdclark at gmail.com> wrote:
> On Tue, Jun 19, 2018 at 9:02 PM, Jonathan Marek <jonathan at marek.ca> wrote:
>> blend can be NULL, so check for that
>
> hmm, which case are you hitting that?  From a quick look I think
> a3xx-a5xx would have the same issue.  Maybe we should just init
> ctx->blend to a dummy state obj when the ctx is created?

This generally happens with clears. A long time ago, st/mesa got
rejiggered slightly, and a glClear() could happen before a blend state
was bound. Many drivers implement clear by doing some amount of
validation, so they have to watch out. I'm sure a3xx+ were already
fixed for this, but not surprising that a2xx still has issues.

  -ilia