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From: Gerd Hoffmann <kraxel@redhat.com>
To: "Michel Dänzer" <michel@daenzer.net>
Cc: Ilia Mirkin <imirkin@alum.mit.edu>,
	amd-gfx@lists.freedesktop.org,
	open list <linux-kernel@vger.kernel.org>,
	"dri-devel@lists.freedesktop.org"
	<dri-devel@lists.freedesktop.org>,
	Daniel Vetter <daniel.vetter@intel.com>
Subject: Re: [RfC PATCH] drm: fourcc byteorder: brings header file comments in line with reality.
Date: Tue, 18 Apr 2017 12:14:00 +0200	[thread overview]
Message-ID: <1492510440.27392.27.camel@redhat.com> (raw)
In-Reply-To: <fe944ecc-3ca4-26d8-77bc-873a53dcbb3f@daenzer.net>

  Hi,

> > Quite true that this proves nothing. However one should note that
> > fbcon -> fbdev works,
> 
> BTW, this supports Gerd's patch, since the KMS fbdev emulation code uses
> e.g. DRM_FORMAT_XRGB8888 for depth/bpp 24/32, and the fbdev API uses
> native endian packed colour values.

Same is true for DRM_IOCTL_MODE_ADDFB, with depth/bpp 24/32 you'll get
DRM_FORMAT_XRGB8888 (only DRM_IOCTL_MODE_ADDFB2 allows userspace specify
fourcc formats directly).

cheers,
  Gerd

WARNING: multiple messages have this Message-ID (diff)
From: Gerd Hoffmann <kraxel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: "Michel Dänzer" <michel-otUistvHUpPR7s880joybQ@public.gmane.org>
Cc: Daniel Vetter
	<daniel.vetter-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	"dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org"
	<dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>,
	amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org,
	Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org>,
	open list <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [RfC PATCH] drm: fourcc byteorder: brings header file comments in line with reality.
Date: Tue, 18 Apr 2017 12:14:00 +0200	[thread overview]
Message-ID: <1492510440.27392.27.camel@redhat.com> (raw)
In-Reply-To: <fe944ecc-3ca4-26d8-77bc-873a53dcbb3f-otUistvHUpPR7s880joybQ@public.gmane.org>

  Hi,

> > Quite true that this proves nothing. However one should note that
> > fbcon -> fbdev works,
> 
> BTW, this supports Gerd's patch, since the KMS fbdev emulation code uses
> e.g. DRM_FORMAT_XRGB8888 for depth/bpp 24/32, and the fbdev API uses
> native endian packed colour values.

Same is true for DRM_IOCTL_MODE_ADDFB, with depth/bpp 24/32 you'll get
DRM_FORMAT_XRGB8888 (only DRM_IOCTL_MODE_ADDFB2 allows userspace specify
fourcc formats directly).

cheers,
  Gerd

_______________________________________________
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amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

  reply	other threads:[~2017-04-18 10:14 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-10 10:12 [RfC PATCH] drm: fourcc byteorder: brings header file comments in line with reality Gerd Hoffmann
2017-04-10 10:12 ` Gerd Hoffmann
2017-04-10 12:02 ` Daniel Vetter
2017-04-10 12:02   ` Daniel Vetter
2017-04-10 16:28   ` Alex Deucher
2017-04-10 16:28     ` Alex Deucher
2017-04-10 13:12 ` Pekka Paalanen
2017-04-10 13:12   ` Pekka Paalanen
2017-04-10 14:17   ` Gerd Hoffmann
2017-04-10 14:17     ` Gerd Hoffmann
2017-04-10 14:45     ` Ilia Mirkin
2017-04-10 14:45       ` Ilia Mirkin
2017-04-10 16:26       ` Alex Deucher
2017-04-10 16:26         ` Alex Deucher
2017-04-10 15:09     ` Pekka Paalanen
2017-04-10 15:09       ` Pekka Paalanen
2017-04-10 16:10       ` Ilia Mirkin
2017-04-10 16:10         ` Ilia Mirkin
2017-04-11  7:31         ` Pekka Paalanen
2017-04-11  7:31           ` Pekka Paalanen
2017-04-11 11:23           ` Gerd Hoffmann
2017-04-11 11:23             ` Gerd Hoffmann
2017-04-13  7:44             ` Pekka Paalanen
2017-04-13  7:44               ` Pekka Paalanen
2017-04-11 14:18           ` Ilia Mirkin
2017-04-11 14:18             ` Ilia Mirkin
2017-04-17  6:43             ` Ilia Mirkin
2017-04-18  2:53               ` Michel Dänzer
2017-04-18  2:53                 ` Michel Dänzer
2017-04-18  5:04                 ` Ilia Mirkin
2017-04-18  5:04                   ` Ilia Mirkin
2017-04-18  5:58                   ` Michel Dänzer
2017-04-18  5:58                     ` Michel Dänzer
2017-04-18 10:14                     ` Gerd Hoffmann [this message]
2017-04-18 10:14                       ` Gerd Hoffmann
2017-04-19  1:01                       ` Michel Dänzer
2017-04-19  1:01                         ` Michel Dänzer
2017-04-19  3:19                         ` Ilia Mirkin
2017-04-19  3:19                           ` Ilia Mirkin
2017-04-19  3:28                           ` Ilia Mirkin
2017-04-19  3:28                             ` Ilia Mirkin
2017-04-19  7:09                         ` Pekka Paalanen
2017-04-19  7:09                           ` Pekka Paalanen
2017-04-19 12:34                           ` Gerd Hoffmann
2017-04-19 12:34                             ` Gerd Hoffmann
2017-04-18 10:00       ` Gerd Hoffmann
2017-04-18 10:00         ` Gerd Hoffmann
2017-04-18 11:18         ` Pekka Paalanen
2017-04-18 11:18           ` Pekka Paalanen
2017-04-18 13:39           ` Gerd Hoffmann
2017-04-18 13:39             ` Gerd Hoffmann
2017-04-18 14:01             ` Pekka Paalanen
2017-04-18 14:01               ` Pekka Paalanen
2017-04-18 20:50               ` Gerd Hoffmann
2017-04-18 20:50                 ` Gerd Hoffmann

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