From: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
linux-renesas-soc@vger.kernel.org,
dri-devel@lists.freedesktop.org
Cc: Alexandru-Cosmin Gheorghe <Alexandru-Cosmin.Gheorghe@arm.com>,
Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>,
Gustavo Padovan <gustavo@padovan.org>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Sean Paul <sean@poorly.run>, David Airlie <airlied@linux.ie>,
linux-kernel@vger.kernel.org (open list)
Subject: [PATCH 1/2] drm/atomic: Initialise planes with opaque alpha values
Date: Wed, 19 Sep 2018 16:56:58 +0100 [thread overview]
Message-ID: <20180919155700.10342-2-kieran.bingham+renesas@ideasonboard.com> (raw)
In-Reply-To: <20180919155700.10342-1-kieran.bingham+renesas@ideasonboard.com>
Planes without an alpha property, using __drm_atomic_helper_plane_reset
will have their plane state alpha initialised as zero, which represents
a transparent alpha.
If this value is then used for the plane, it may not be visible by
default, and thus doesn't represent a good initialisation state.
Update the default state->alpha value to DRM_BLEND_ALPHA_OPAQUE
unconditionally when the plane is reset.
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
---
drivers/gpu/drm/drm_atomic_helper.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index 3cf1aa132778..e49b22381048 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -3569,9 +3569,7 @@ void __drm_atomic_helper_plane_reset(struct drm_plane *plane,
state->plane = plane;
state->rotation = DRM_MODE_ROTATE_0;
- /* Reset the alpha value to fully opaque if it matters */
- if (plane->alpha_property)
- state->alpha = plane->alpha_property->values[1];
+ state->alpha = DRM_BLEND_ALPHA_OPAQUE;
state->pixel_blend_mode = DRM_MODE_BLEND_PREMULTI;
plane->state = state;
--
2.17.1
next parent reply other threads:[~2018-09-19 15:57 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20180919155700.10342-1-kieran.bingham+renesas@ideasonboard.com>
2018-09-19 15:56 ` Kieran Bingham [this message]
2018-09-19 16:15 ` [PATCH 1/2] drm/atomic: Initialise planes with opaque alpha values Ville Syrjälä
2018-09-19 16:43 ` Alexandru-Cosmin Gheorghe
2018-09-20 10:03 ` Kieran Bingham
2018-09-20 10:19 ` Alexandru-Cosmin Gheorghe
2018-09-20 11:17 ` Laurent Pinchart
2018-09-19 15:56 ` [PATCH 2/2] drm: rcar-du: Enable alpha property on primary planes Kieran Bingham
2018-09-20 11:22 ` Laurent Pinchart
2018-11-21 18:29 ` Laurent Pinchart
2018-11-21 21:10 ` Kieran Bingham
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