From: Sam Ravnborg <sam@ravnborg.org>
To: Artem Mygaiev <joculator@gmail.com>, Phong LE <ple@baylibre.com>
Cc: dri-devel@lists.freedesktop.org
Subject: Re: Question about sRGB framebuffer support
Date: Tue, 5 May 2020 21:03:36 +0200 [thread overview]
Message-ID: <20200505190336.GA12664@ravnborg.org> (raw)
In-Reply-To: <CAJwc6KtGT4+Y2jT1fxzYrkcqvkxgs9GGqxT-zZtj6ktRf-67jQ@mail.gmail.com>
Hi Artem.
On Tue, May 05, 2020 at 01:24:16PM +0300, Artem Mygaiev wrote:
> Hello all
>
> I am currently working on DRM/KMS driver for Fresco Logic FL2000 USB display
> controller [1]. I have already implemented a POC driver [2] which is working for
> me, although there are still plenty of things to improve or fix, of course.
>
> So far I have one thing that I somehow cannot find in DRM/KMS documentation or
> existing drivers: how to tell the system that HW expects sRGB (i.e. non-linear)
> color encoding in framebuffers? This is a HW limitation that I cannot influence
> by configuration.
>
> Any pointers are greatly appreciated.
No clue, I hope others can help you.
>
> [1] www.frescologic.com/product/single/fl2000
> [2] https://github.com/klogg/fl2000_drm
I just visited your github site - and noticed you are using the
it66121 bridge.
Phong LE <ple@baylibre.com> have recently submitted a patch to
add this bridge to the kernel:
https://lore.kernel.org/dri-devel/20200311125135.30832-1-ple@baylibre.com/
I did not really looks at your code, awaits that you feel ready to submit
it.
Sam
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next prev parent reply other threads:[~2020-05-05 19:03 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-05 10:24 Question about sRGB framebuffer support Artem Mygaiev
2020-05-05 19:03 ` Sam Ravnborg [this message]
2020-05-05 19:17 ` Artem Mygaiev
2020-05-06 7:44 ` Ville Syrjälä
2020-05-06 9:04 ` Artem Mygaiev
2020-05-06 9:18 ` Ville Syrjälä
2020-05-06 9:25 ` Artem Mygaiev
2020-05-06 9:33 ` Ville Syrjälä
2020-05-06 13:54 ` Artem Mygaiev
2020-05-07 6:07 ` Ville Syrjälä
2020-05-07 6:18 ` Ville Syrjälä
2020-05-07 9:15 ` Artem Mygaiev
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