[Mesa-dev] [PATCH] mesa/st: Fix frontbuffer rendering regression

[Emil Velikov]

Hi Thomas,

On 7 September 2017 at 09:53, Thomas Hellstrom <thellstrom at vmware.com> wrote:
> This fixes a regression introduced with commit
> eceb6710024716433069d705fbd873d6d136c2cc:
> "mesa/st: Reduce the number of frontbuffer flush calls"
> where we, after flushing the front buffer marked it as not-rendered-to,
> the idea being that it should be marked as "rendered-to" again as soon as
> any rendering was touching the front.
>
> Now the latter part never happened, because it was part of a state
> validation and we never marked that part of the state as dirty.
>
> So mark the framebuffer state dirty after a frontbuffer flush.
> (fdo bugzilla 102496)
>
Please use the following tags.
They will help us reference the bug in the release notes and we can
track exactly where the fix is needed.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=102496
Fixes: eceb6710024 ("mesa/st: Reduce the number of frontbuffer flush calls")

Thanks
Emil