From: Marcus Lorentzon <marcus.xm.lorentzon@stericsson.com>
To: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
Cc: "inki.dae@samsung.com" <inki.dae@samsung.com>,
"kyungmin.park@samsung.com" <kyungmin.park@samsung.com>,
Seung-Woo Kim <sw0312.kim@samsung.com>,
"dri-devel@lists.freedesktop.org"
<dri-devel@lists.freedesktop.org>
Subject: Re: [PATCH libdrm] libdrm: update drm/drm_fourcc.h from kernel to add multi plane formats
Date: Fri, 30 Mar 2012 13:09:54 +0200 [thread overview]
Message-ID: <4F759482.9090804@stericsson.com> (raw)
In-Reply-To: <20120330101258.GV4917@intel.com>
On 03/30/2012 12:12 PM, Ville Syrjälä wrote:
>> +#define DRM_FORMAT_NV12MT fourcc_code('T', 'M', '1', '2') /* 2x2 subsampled Cr:Cb plane 64x32 macroblocks */
> This one is more difficult. Until now tiling was always handled in
> driver specific manner. OTOH if this format is really supported by
> different devices from multiple vendors, then it would probably
> make sense to add it as a standard format.
>
What about adding a DRM_FORMAT_PRIV_NV12MT and force vendor to add
detailed documentation about this new format. Because if the format is
not defined and documented, how will we ever discover if vendors have
similar formats? And if we document all these MB formats "everyone"
uses, then maybe we can get HW vendors to unify on a de facto standard.
It would be nice to have an efficient format supported by everyone,
instead of having to fallback to old linear formats every time you
interact with another device.
/BR
/Marcus
next prev parent reply other threads:[~2012-03-30 11:10 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-30 2:54 [PATCH libdrm] libdrm: update drm/drm_fourcc.h from kernel to add multi plane formats Seung-Woo Kim
2012-03-30 10:12 ` Ville Syrjälä
2012-03-30 11:07 ` 김승우
2012-03-30 12:13 ` Ville Syrjälä
2012-03-30 11:09 ` Marcus Lorentzon [this message]
2012-04-06 20:04 ` Sylwester Nawrocki
2012-04-05 18:13 ` Ville Syrjälä
2012-04-06 0:13 ` Rob Clark
2012-04-06 6:05 ` Inki Dae
2012-04-06 7:43 ` Ville Syrjälä
2012-04-06 9:22 ` Kyungmin Park
2012-04-06 11:22 ` Sylwester Nawrocki
2012-04-07 6:01 ` daeinki
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