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| author | Jonas Karlman <jonas@kwiboo.se> | 2023-10-23 20:37:14 +0300 |
|---|---|---|
| committer | Heiko Stuebner <heiko@sntech.de> | 2023-10-24 22:34:35 +0300 |
| commit | 728c15b4b5f3369cbde73d5e0f14701ab370f985 (patch) | |
| tree | 48d584c70c2cb5144a669e33497971b2036a4982 /include/uapi | |
| parent | 215737e37d07ade8952048339e37aec6c6f82223 (diff) | |
| download | linux-728c15b4b5f3369cbde73d5e0f14701ab370f985.tar.xz | |
drm/fourcc: Add NV20 and NV30 YUV formats
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>
Reviewed-by: Sandy Huang <hjc@rock-chips.com>
Reviewed-by: Christopher Obbard <chris.obbard@collabora.com>
Tested-by: Christopher Obbard <chris.obbard@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20231023173718.188102-2-jonas@kwiboo.se
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/drm/drm_fourcc.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h index 8db7fd3f743e..3151f1fc7ebb 100644 --- a/include/uapi/drm/drm_fourcc.h +++ b/include/uapi/drm/drm_fourcc.h @@ -323,6 +323,8 @@ 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 |