From: Huang Jiachai <hjc@rock-chips.com>
To: "Jonas Karlman" <jonas@kwiboo.se>, "Heiko Stübner" <heiko@sntech.de>
Cc: Daniel Vetter <daniel@ffwll.ch>, David Airlie <airlied@linux.ie>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
linux-kernel@vger.kernel.org, Maxime Ripard <mripard@kernel.org>,
linux-rockchip@lists.infradead.org,
dri-devel@lists.freedesktop.org,
Thomas Zimmermann <tzimmermann@suse.de>,
Ben Davis <ben.davis@arm.com>
Subject: Re: [PATCH v2 1/2] drm: drm_fourcc: add NV20 and NV30 YUV formats【请注意,邮件由linux-rockchip-bounces+sandy.huang=rock-chips.com@lists.infradead.org代发】
Date: Tue, 7 Jul 2020 19:44:53 +0800 [thread overview]
Message-ID: <8e4966d3-c57c-735a-d0e0-ca769c2d4f0e@rock-chips.com> (raw)
In-Reply-To: <20200706223009.1200-2-jonas@kwiboo.se>
在 2020/7/7 6:30, Jonas Karlman 写道:
> DRM_FORMAT_NV20 and DRM_FORMAT_NV30 formats is the 2x1 and non-subsampled
> variant of NV15, a 10-bit 2-plane YUV format that has no padding between
> components. Instead, luminance and chrominance samples are grouped into 4s
> so that each group is packed into an integer number of bytes:
>
> YYYY = UVUV = 4 * 10 bits = 40 bits = 5 bytes
>
> The '20' and '30' suffix refers to the optimum effective bits per pixel
> which is achieved when the total number of luminance samples is a multiple
> of 4.
>
> V2: Added NV30 format
>
> Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
> ---
> drivers/gpu/drm/drm_fourcc.c | 8 ++++++++
> include/uapi/drm/drm_fourcc.h | 2 ++
> 2 files changed, 10 insertions(+)
>
> diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c
> index 722c7ebe4e88..2daf8a304b53 100644
> --- a/drivers/gpu/drm/drm_fourcc.c
> +++ b/drivers/gpu/drm/drm_fourcc.c
> @@ -278,6 +278,14 @@ const struct drm_format_info *__drm_format_info(u32 format)
> .num_planes = 2, .char_per_block = { 5, 5, 0 },
> .block_w = { 4, 2, 0 }, .block_h = { 1, 1, 0 }, .hsub = 2,
> .vsub = 2, .is_yuv = true },
> + { .format = DRM_FORMAT_NV20, .depth = 0,
> + .num_planes = 2, .char_per_block = { 5, 5, 0 },
> + .block_w = { 4, 2, 0 }, .block_h = { 1, 1, 0 }, .hsub = 2,
> + .vsub = 1, .is_yuv = true },
> + { .format = DRM_FORMAT_NV30, .depth = 0,
> + .num_planes = 2, .char_per_block = { 5, 5, 0 },
> + .block_w = { 4, 2, 0 }, .block_h = { 1, 1, 0 }, .hsub = 1,
> + .vsub = 1, .is_yuv = true },
> { .format = DRM_FORMAT_Q410, .depth = 0,
> .num_planes = 3, .char_per_block = { 2, 2, 2 },
> .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 }, .hsub = 0,
> diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
> index cbf92fdf2712..c8695673295c 100644
> --- a/include/uapi/drm/drm_fourcc.h
> +++ b/include/uapi/drm/drm_fourcc.h
> @@ -242,6 +242,8 @@ extern "C" {
> * index 1 = Cr:Cb plane, [39:0] Cr1:Cb1:Cr0:Cb0 little endian
> */
> #define DRM_FORMAT_NV15 fourcc_code('N', 'V', '1', '5') /* 2x2 subsampled Cr:Cb plane */
> +#define DRM_FORMAT_NV20 fourcc_code('N', 'V', '2', '0') /* 2x1 subsampled Cr:Cb plane */
> +#define DRM_FORMAT_NV30 fourcc_code('N', 'V', '3', '0') /* non-subsampled Cr:Cb plane */
>
> /*
> * 2 plane YCbCr MSB aligned
Reviewed-by: Sandy Huang <hjc@rock-chips.com>
--
Best Regard
黄家钗
Sandy Huang
Addr: 福州市鼓楼区铜盘路软件大道89号福州软件园A区21号楼(350003)
No. 21 Building, A District, No.89,software Boulevard Fuzhou,Fujian,PRC
Tel:+86 0591-87884919 8690
E-mail:hjc@rock-chips.com
prev parent reply other threads:[~2020-07-07 11:44 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-07 20:25 [PATCH 0/2] drm: rockchip: add NV15 and NV20 support Jonas Karlman
2020-06-07 20:25 ` [PATCH 1/2] drm: drm_fourcc: add NV20 YUV format Jonas Karlman
2020-06-08 9:11 ` Brian Starkey
2020-06-17 12:07 ` [PATCH 1/2] drm: drm_fourcc: add NV20 YUV format【请注意,邮件由linux-rockchip-bounces+sandy.huang=rock-chips.com@lists.infradead.org代发】 Huang Jiachai
2020-06-26 14:19 ` Jonas Karlman
2020-06-28 1:51 ` Huang Jiachai
2020-06-07 20:25 ` [PATCH 2/2] drm: rockchip: add NV15 and NV20 support Jonas Karlman
2020-06-17 9:27 ` Heiko Stübner
2020-07-06 22:30 ` [PATCH v2 0/2] drm: rockchip: add NV15, NV20 and NV30 support Jonas Karlman
2020-07-06 22:30 ` [PATCH v2 2/2] " Jonas Karlman
2020-07-07 11:45 ` [PATCH v2 2/2] drm: rockchip: add NV15, NV20 and NV30 support【请注意,邮件由linux-rockchip-bounces+sandy.huang=rock-chips.com@lists.infradead.org代发】 Huang Jiachai
2020-07-14 7:34 ` [PATCH v2 2/2] drm: rockchip: add NV15, NV20 and NV30 support Alex Bee
2020-07-06 22:30 ` [PATCH v2 1/2] drm: drm_fourcc: add NV20 and NV30 YUV formats Jonas Karlman
2020-07-07 11:44 ` Huang Jiachai [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=8e4966d3-c57c-735a-d0e0-ca769c2d4f0e@rock-chips.com \
--to=hjc@rock-chips.com \
--cc=airlied@linux.ie \
--cc=ben.davis@arm.com \
--cc=daniel@ffwll.ch \
--cc=dri-devel@lists.freedesktop.org \
--cc=heiko@sntech.de \
--cc=jonas@kwiboo.se \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-rockchip@lists.infradead.org \
--cc=maarten.lankhorst@linux.intel.com \
--cc=mripard@kernel.org \
--cc=tzimmermann@suse.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).