[PATCH v2 0/2] drm/blend: Add per-plane pixel blend mode property

[Lowry Li]

On Wed, May 30, 2018 at 10:40:40AM -0400, Sean Paul wrote:
> On Wed, May 30, 2018 at 07:23:52PM +0800, Lowry Li wrote:
> > Hi,
> > 
> > This serie aims at adding the support for pixel blend modes represent the
> > alpha blending equation selection in the driver. It also introduces to use
> > it in the malidp driver.
> > 
> > Let me know what you think,
> 
> Hi Lowry,
> Thank you for doing this work. I know this is something that is missing for
> proper Android support, so it's most welcome.
> 
> Do you have userspace patches using this property?
> 
> Sean
> 
> 
Hi Sean,
Thanks a lot for the reply. Yes, we have userspace patches, which is
on the way. Will let you know once it's ready.

Thanks,
Lowry
> > Lowry
> > 
> > Changes for v2:
> >  - Moves the blending equation into the DOC comment
> >  - Refines the comments of drm_plane_create_blend_mode_property to not
> >    enumerate the #defines, but instead the string values
> >  - Uses fg.* instead of pixel.* and plane_alpha instead of plane.alpha
> >  - Introduces to use it in the malidp driver, which depends on the plane
> >    alpha patch
> > 
> > Changes from v1:
> >  - v1 is just the core changes to request for commments
> >  - Adds a pixel_blend_mode to drm_plane_state and a blend_mode_property to
> >    drm_plane, and related support functions
> >  - Defines three blend modes in drm_blend.h
> >  - Rebased on current drm-next
> > 
> > Lowry Li (2):
> >   drm/blend: Add per-plane pixel blend mode property
> >   drm/mali-dp: Implement plane alpha and pixel blend on malidp
> > 
> >  drivers/gpu/drm/arm/malidp_planes.c |  76 ++++++++++++++-----------
> >  drivers/gpu/drm/drm_atomic.c        |   4 ++
> >  drivers/gpu/drm/drm_atomic_helper.c |   1 +
> >  drivers/gpu/drm/drm_blend.c         | 110 ++++++++++++++++++++++++++++++++++++
> >  include/drm/drm_blend.h             |   6 ++
> >  include/drm/drm_plane.h             |   6 ++
> >  6 files changed, 171 insertions(+), 32 deletions(-)
> > 
> > -- 
> > 1.9.1
> > 
> 
> -- 
> Sean Paul, Software Engineer, Google / Chromium OS

-- 
Regards,
Lowry