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

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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


> 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
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