Re: [PATCH 1/7] drm: Add P010, P012, P016 format definitions and fourcc

From: Daniel Vetter <daniel.vetter@ffwll.ch>
To: "Sharma, Swati2" <swati2.sharma@intel.com>
Cc: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>,
	intel-gfx <intel-gfx@lists.freedesktop.org>,
	dri-devel <dri-devel@lists.freedesktop.org>,
	StanLis <stanislav.lisovskiy@intel.com>
Subject: Re: [PATCH 1/7] drm: Add P010, P012, P016 format definitions and fourcc
Date: Fri, 8 Feb 2019 18:23:31 +0100	[thread overview]
Message-ID: <CAKMK7uEDBZK0UT=hGtZ+qe6z3-byeGkqqMDhi6ARYfehU-UgbQ@mail.gmail.com> (raw)
In-Reply-To: <1549633645-29616-2-git-send-email-swati2.sharma@intel.com>

On Fri, Feb 8, 2019 at 2:51 PM <swati2.sharma@intel.com> wrote:
>
> From: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
>
> Add P010 definition, semi-planar yuv format where each component
> is 16 bits 10 msb containing color value. First come Y plane [10:6]
> followed by 2x2 subsampled Cr:Cb plane [10:6:10:6]
>
> Add P012 definition, semi-planar yuv format where each component
> is 16 bits 12 msb containing color value. First come Y plane [12:4]
> followed by 2x2 subsampled Cr:Cb plane [12:4:12:4]
>
> Add P016 definition, semi-planar yuv format where each component
> is 16 bits. First come Y plane followed by 2x2 subsampled Cr:Cb
> plane [16:16]
>
> Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>

If you send out someone else's patches, you need to add your own
signed-off-by too.

Also, I pointed out that other people are also working on P010
formats, but the coordination here didn't seem to have happened. Other
patch will land in drm-misc rsn, so pls drop your patch here and for
merging this means a backmerge.

Thanks, Daniel

> ---
>  drivers/gpu/drm/drm_fourcc.c  |  3 +++
>  include/uapi/drm/drm_fourcc.h | 10 ++++++++++
>  2 files changed, 13 insertions(+)
>
> diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c
> index d90ee03..d45a3a4 100644
> --- a/drivers/gpu/drm/drm_fourcc.c
> +++ b/drivers/gpu/drm/drm_fourcc.c
> @@ -226,6 +226,9 @@ const struct drm_format_info *__drm_format_info(u32 format)
>                 { .format = DRM_FORMAT_VYUY,            .depth = 0,  .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
>                 { .format = DRM_FORMAT_XYUV8888,        .depth = 0,  .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
>                 { .format = DRM_FORMAT_AYUV,            .depth = 0,  .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
> +               { .format = DRM_FORMAT_P010,            .depth = 0,  .num_planes = 2, .cpp = { 2, 4, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true  },
> +               { .format = DRM_FORMAT_P012,            .depth = 0,  .num_planes = 2, .cpp = { 2, 4, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true  },
> +               { .format = DRM_FORMAT_P016,            .depth = 0,  .num_planes = 2, .cpp = { 2, 4, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true  },
>                 { .format = DRM_FORMAT_Y0L0,            .depth = 0,  .num_planes = 1,
>                   .char_per_block = { 8, 0, 0 }, .block_w = { 2, 0, 0 }, .block_h = { 2, 0, 0 },
>                   .hsub = 2, .vsub = 2, .has_alpha = true, .is_yuv = true },
> diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
> index 93a341d..073bbea 100644
> --- a/include/uapi/drm/drm_fourcc.h
> +++ b/include/uapi/drm/drm_fourcc.h
> @@ -196,6 +196,16 @@
>  #define DRM_FORMAT_NV42                fourcc_code('N', 'V', '4', '2') /* non-subsampled Cb:Cr plane */
>
>  /*
> + * 2 plane YCbCr
> + * index 0 = Y plane, [15:0] Y little endian where Pxxx indicate
> + * component xxx msb Y [xxx:16-xxx]
> + * index 1 = Cr:Cb plane, [31:0] Cr:Cb little endian [xxx:16-xxx:xxx:16-xxx]
> + */
> +#define DRM_FORMAT_P010                fourcc_code('P', '0', '1', '0') /* 2x2 subsampled Cr:Cb plane, 10 bit per channel */
> +#define DRM_FORMAT_P012                fourcc_code('P', '0', '1', '2') /* 2x2 subsampled Cr:Cb plane, 12 bit per channel */
> +#define DRM_FORMAT_P016                fourcc_code('P', '0', '1', '6') /* 2x2 subsampled Cr:Cb plane, 16 bit per channel */
> +
> +/*
>   * 3 plane YCbCr
>   * index 0: Y plane, [7:0] Y
>   * index 1: Cb plane, [7:0] Cb
> --
> 1.9.1
>

-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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