From: maxime.ripard@bootlin.com (Maxime Ripard)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 7/8] drm/sun4i: Add support for plane alpha
Date: Thu, 22 Feb 2018 15:34:50 +0100 [thread overview]
Message-ID: <20180222143450.gr3tom2ahdimdurd@flea.lan> (raw)
In-Reply-To: <CAGb2v66W0W1V8_SaRn2nvkptPht5nYXEvJThf1hY5qJPo+zPwA@mail.gmail.com>
On Thu, Feb 22, 2018 at 10:17:38PM +0800, Chen-Yu Tsai wrote:
> On Sat, Feb 17, 2018 at 1:39 AM, Maxime Ripard
> <maxime.ripard@bootlin.com> wrote:
> > Our backend supports a per-plane alpha property. Support it through our new
> > helper.
> >
> > Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
>
> Reviewed-by: Chen-Yu Tsai <wens@csie.org>
>
> Though, not having a graphics background, does alpha = 255 mean fully
> transparent and thus can be skipped? Or no alpha at all?
It means that it's fully opaque, and therefore we are in the same
situation than if we had no alpha channel at all.
Maxime
--
Maxime Ripard, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
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From: Maxime Ripard <maxime.ripard@bootlin.com>
To: Chen-Yu Tsai <wens@csie.org>
Cc: dri-devel <dri-devel@lists.freedesktop.org>,
Boris Brezillon <boris.brezillon@bootlin.com>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Daniel Vetter <daniel.vetter@intel.com>,
linux-arm-kernel <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v3 7/8] drm/sun4i: Add support for plane alpha
Date: Thu, 22 Feb 2018 15:34:50 +0100 [thread overview]
Message-ID: <20180222143450.gr3tom2ahdimdurd@flea.lan> (raw)
In-Reply-To: <CAGb2v66W0W1V8_SaRn2nvkptPht5nYXEvJThf1hY5qJPo+zPwA@mail.gmail.com>
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On Thu, Feb 22, 2018 at 10:17:38PM +0800, Chen-Yu Tsai wrote:
> On Sat, Feb 17, 2018 at 1:39 AM, Maxime Ripard
> <maxime.ripard@bootlin.com> wrote:
> > Our backend supports a per-plane alpha property. Support it through our new
> > helper.
> >
> > Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
>
> Reviewed-by: Chen-Yu Tsai <wens@csie.org>
>
> Though, not having a graphics background, does alpha = 255 mean fully
> transparent and thus can be skipped? Or no alpha at all?
It means that it's fully opaque, and therefore we are in the same
situation than if we had no alpha channel at all.
Maxime
--
Maxime Ripard, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
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next prev parent reply other threads:[~2018-02-22 14:34 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-16 17:39 [PATCH v3 0/8] drm/sun4i: Support more planes, zpos and plane-wide alpha Maxime Ripard
2018-02-16 17:39 ` Maxime Ripard
2018-02-16 17:39 ` [PATCH v3 1/8] drm/blend: Add a generic alpha property Maxime Ripard
2018-02-16 17:39 ` Maxime Ripard
2018-02-16 18:20 ` Ville Syrjälä
2018-02-16 18:20 ` Ville Syrjälä
2018-02-19 20:19 ` Laurent Pinchart
2018-02-19 20:19 ` Laurent Pinchart
2018-02-19 21:58 ` Daniel Vetter
2018-02-19 21:58 ` Daniel Vetter
2018-02-21 13:07 ` Maxime Ripard
2018-02-21 13:07 ` Maxime Ripard
2018-03-05 8:58 ` Daniel Vetter
2018-03-05 8:58 ` Daniel Vetter
2018-03-05 10:08 ` Laurent Pinchart
2018-03-05 10:08 ` Laurent Pinchart
2018-03-06 7:10 ` Daniel Vetter
2018-03-06 7:10 ` Daniel Vetter
2018-02-21 20:39 ` Laurent Pinchart
2018-02-21 20:39 ` Laurent Pinchart
2018-03-05 9:04 ` Daniel Vetter
2018-03-05 9:04 ` Daniel Vetter
2018-02-20 15:10 ` Stefan Schake
2018-02-20 15:10 ` Stefan Schake
2018-02-21 13:04 ` Maxime Ripard
2018-02-21 13:04 ` Maxime Ripard
2018-03-07 2:28 ` Stefan Schake
2018-03-07 2:28 ` Stefan Schake
2018-02-19 20:13 ` Laurent Pinchart
2018-02-19 20:13 ` Laurent Pinchart
2018-02-16 17:39 ` [PATCH v3 2/8] drm/atmel-hclcdc: Convert to the new " Maxime Ripard
2018-02-16 17:39 ` Maxime Ripard
2018-02-16 17:39 ` [PATCH v3 3/8] drm/rcar-du: " Maxime Ripard
2018-02-16 17:39 ` Maxime Ripard
2018-02-16 17:39 ` [PATCH v3 4/8] drm/sun4i: backend: Assign the pipes automatically Maxime Ripard
2018-02-16 17:39 ` Maxime Ripard
2018-02-22 14:13 ` Chen-Yu Tsai
2018-02-22 14:13 ` Chen-Yu Tsai
2018-02-16 17:39 ` [PATCH v3 5/8] drm/sun4i: Remove the plane description structure Maxime Ripard
2018-02-16 17:39 ` Maxime Ripard
2018-02-22 14:14 ` Chen-Yu Tsai
2018-02-22 14:14 ` Chen-Yu Tsai
2018-02-16 17:39 ` [PATCH v3 6/8] drm/sun4i: backend: Make zpos configurable Maxime Ripard
2018-02-16 17:39 ` Maxime Ripard
2018-02-16 17:39 ` [PATCH v3 7/8] drm/sun4i: Add support for plane alpha Maxime Ripard
2018-02-16 17:39 ` Maxime Ripard
2018-02-22 14:17 ` Chen-Yu Tsai
2018-02-22 14:17 ` Chen-Yu Tsai
2018-02-22 14:34 ` Maxime Ripard [this message]
2018-02-22 14:34 ` Maxime Ripard
2018-02-22 14:37 ` Chen-Yu Tsai
2018-02-22 14:37 ` Chen-Yu Tsai
2018-02-16 17:39 ` [PATCH v3 8/8] drm/sun4i: backend: Remove ARGB spoofing Maxime Ripard
2018-02-16 17:39 ` Maxime Ripard
2018-02-22 14:15 ` Chen-Yu Tsai
2018-02-22 14:15 ` Chen-Yu Tsai
2018-02-22 15:33 ` Maxime Ripard
2018-02-22 15:33 ` Maxime Ripard
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