diff options
| author | Maxime Ripard <maxime.ripard@bootlin.com> | 2018-04-11 09:39:25 +0200 |
|---|---|---|
| committer | Maxime Ripard <maxime.ripard@bootlin.com> | 2018-04-16 21:17:29 +0200 |
| commit | ae0e28265e216dad11d4cbde42fc15e92919af78 (patch) | |
| tree | 08e84813756efaadf64b1be7ae953f62fb4a8a4f /drivers/gpu/drm/drm_atomic_helper.c | |
| parent | a08fc7c8056e75b08285a2ad955228002dcd86bc (diff) | |
| download | linux-ae0e28265e216dad11d4cbde42fc15e92919af78.tar.gz linux-ae0e28265e216dad11d4cbde42fc15e92919af78.tar.bz2 linux-ae0e28265e216dad11d4cbde42fc15e92919af78.zip | |
drm/blend: Add a generic alpha property
Some drivers duplicate the logic to create a property to store a per-plane
alpha.
This is especially useful if we ever want to support extra protocols for
Wayland like:
https://lists.freedesktop.org/archives/wayland-devel/2017-August/034741.html
Let's create a helper in order to move that to the core.
Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Acked-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/6e1ce0db78fcfc407e94913c64819e65109d034d.1523432341.git-series.maxime.ripard@bootlin.com
Diffstat (limited to 'drivers/gpu/drm/drm_atomic_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_atomic_helper.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index ee03c1ed2521..0587a0a2f3aa 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -3500,6 +3500,10 @@ void drm_atomic_helper_plane_reset(struct drm_plane *plane) if (plane->state) { plane->state->plane = plane; plane->state->rotation = DRM_MODE_ROTATE_0; + + /* Reset the alpha value to fully opaque if it matters */ + if (plane->alpha_property) + plane->state->alpha = plane->alpha_property->values[1]; } } EXPORT_SYMBOL(drm_atomic_helper_plane_reset); |