On Fri, Oct 23, 2015 at 06:19:02PM -0700, Vivek Kasireddy wrote:
> On Thu, 22 Oct 2015 21:12:02 -0700
> Ben Widawsky <b...@bwidawsk.net> wrote:
>
> > On Thu, Oct 22, 2015 at 06:44:53PM -0700, Vivek Kasireddy wrote:
> > > On newer hardware platforms that support rotation, if the gbm
> > > interface requests to create a rotated scanout buffer via the
> > > flag __DRI_IMAGE_USE_SCANOUT_ROTATED_90_270, set Y-tiling
> > > while creating the buffer.
> > >
> > > Cc: Kristian Hogsberg <k...@bitplanet.net>
> > > Signed-off-by: Vivek Kasireddy <vivek.kasire...@intel.com>
> >
> > FYI, I'd been hoping to land a superset of this for quite a while. My
> > understanding was the DDX doesn't support it.
> >
> > http://patchwork.freedesktop.org/patch/46984/
>
> Hi Ben,
> I am sorry I wasn't aware of your patch. I am testing this feature with
> a Wayland/Weston based compositor.
>
> Thanks and Regards,
> Vivek
>
That's fine. It's a really old patch by now. It would be really great if we
could have something which works in X too.
> >
> > > ---
> > > src/mesa/drivers/dri/i965/intel_screen.c | 6 ++++++
> > > 1 file changed, 6 insertions(+)
> > >
> > > diff --git a/src/mesa/drivers/dri/i965/intel_screen.c
> > > b/src/mesa/drivers/dri/i965/intel_screen.c index 590c45d..1079676
> > > 100644 --- a/src/mesa/drivers/dri/i965/intel_screen.c
> > > +++ b/src/mesa/drivers/dri/i965/intel_screen.c
> > > @@ -525,6 +525,12 @@ intel_create_image(__DRIscreen *screen,
> > >
> > > if (use & __DRI_IMAGE_USE_LINEAR)
> > > tiling = I915_TILING_NONE;
> > > + else if (use & __DRI_IMAGE_USE_SCANOUT_ROTATED_90_270) {
> > > + if (intelScreen->devinfo->gen >= 9)
> > > + tiling = I915_TILING_Y;
> > > + else
> > > + return NULL;
> > > + }
> > >
> > > image = intel_allocate_image(format, loaderPrivate);
> > > if (image == NULL)
> > > --
> > > 2.4.3
> > >
> > > _______________________________________________
> > > mesa-dev mailing list
> > > mesa-dev@lists.freedesktop.org
> > > http://lists.freedesktop.org/mailman/listinfo/mesa-dev
>
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