Hi Jeffrey,
On Fri, 2017-08-04 at 11:49 -0700, Jeffrey Mouroux wrote:
> The Xilinx Video Mixer andn Xilinx Video Framebuffer DMA IP
> support video memory formats that are not represented in the
> current DRM fourcc library. This patch adds those missing
> fourcc codes.
>
> Signed-off-by: Jeffrey Mouroux <jmour...@xilinx.com>
> ---
> include/uapi/drm/drm_fourcc.h | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
> index ef20abb..3e80130 100644
> --- a/include/uapi/drm/drm_fourcc.h
> +++ b/include/uapi/drm/drm_fourcc.h
> @@ -112,6 +112,14 @@
> #define DRM_FORMAT_VYUY fourcc_code('V', 'Y', 'U', 'Y') /*
> [31:0] Y1:Cb0:Y0:Cr0 8:8:8:8 little endian */
>
> #define DRM_FORMAT_AYUV fourcc_code('A', 'Y', 'U', 'V') /*
> [31:0] A:Y:Cb:Cr 8:8:8:8 little endian */
> +#define DRM_FORMAT_AVUY fourcc_code('A', 'V', 'U', 'Y') /*
> [31:0] A:Cr:Cb:Y 8:8:8:8 little endian */
> +#define DRM_FORMAT_VUY888 fourcc_code('V', 'U', '2', '4') /* [23:0]
> Cr:Cb:Y little endian */
> +#define DRM_FORMAT_XVUY8888 fourcc_code('X', 'V', '2', '4') /* [31:0]
> x:Cr:Cb:Y 8:8:8:8 little endian */
> +#define DRM_FORMAT_XVUY2101010 fourcc_code('X', 'V', '3', '0') /*
> [31:0] x:Cr:Cb:Y 2:10:10:10 little endian */
> +
> +/* Grey scale */
> +#define DRM_FORMAT_Y8 fourcc_code('G', 'R', 'E', 'Y') /* 8
> Greyscale */
That would be useful for me as well.
> +#define DRM_FORMAT_Y10 fourcc_code('Y', '1', '0', ' ') /* 10
> Greyscale */
It is not clear to me from the description, how this should be laid out
in memory. Is it padded to 16 bits? Packed?
> /*
> * 2 plane YCbCr
> @@ -126,6 +134,7 @@
> #define DRM_FORMAT_NV61 fourcc_code('N', 'V', '6', '1') /* 2x1
> subsampled Cb:Cr plane */
> #define DRM_FORMAT_NV24 fourcc_code('N', 'V', '2', '4') /*
> non-subsampled Cr:Cb plane */
> #define DRM_FORMAT_NV42 fourcc_code('N', 'V', '4', '2') /*
> non-subsampled Cb:Cr plane */
> +#define DRM_FORMAT_XV15 fourcc_code('X', 'V', '2', '0') /* 2x2
> subsampled Cb:Cr plane 2:10:10:10 */
Same here.
regards
Philipp
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