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