On Fri, Oct 12, 2018 at 05:35:54PM +0100, Alexandru Gheorghe wrote:
> Mali-DP implements a number of tiled yuv formats which are not
> currently described in drm_fourcc.h.
> This adds those definitions and describes their memory layout by
> using the newly added char_per_block, block_w, block_h.
>
> Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheor...@arm.com>
Acked-by: Liviu Dudau <liviu.du...@arm.com>
> ---
> drivers/gpu/drm/drm_fourcc.c | 12 ++++++++++++
> include/uapi/drm/drm_fourcc.h | 14 ++++++++++++++
> 2 files changed, 26 insertions(+)
>
> diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c
> index a843a5fc8dbf..69caa577149c 100644
> --- a/drivers/gpu/drm/drm_fourcc.c
> +++ b/drivers/gpu/drm/drm_fourcc.c
> @@ -228,6 +228,18 @@ const struct drm_format_info *__drm_format_info(u32
> format)
> { .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 },
> + { .format = DRM_FORMAT_X0L0, .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, .is_yuv = true },
> + { .format = DRM_FORMAT_Y0L2, .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 },
> + { .format = DRM_FORMAT_X0L2, .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, .is_yuv = true },
> };
>
> unsigned int i;
> diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
> index 600106adf91f..4de86dbf40ca 100644
> --- a/include/uapi/drm/drm_fourcc.h
> +++ b/include/uapi/drm/drm_fourcc.h
> @@ -152,6 +152,20 @@ extern "C" {
>
> #define DRM_FORMAT_AYUV fourcc_code('A', 'Y', 'U', 'V') /*
> [31:0] A:Y:Cb:Cr 8:8:8:8 little endian */
>
> +/*
> + * packed YCbCr420 2x2 tiled formats
> + * first 64 bits will contain Y,Cb,Cr components for a 2x2 tile
> + */
> +/* [63:0] A3:A2:Y3:0:Cr0:0:Y2:0:A1:A0:Y1:0:Cb0:0:Y0:0
> 1:1:8:2:8:2:8:2:1:1:8:2:8:2:8:2 little endian */
> +#define DRM_FORMAT_Y0L0 fourcc_code('Y', '0', 'L', '0')
> +/* [63:0] X3:X2:Y3:0:Cr0:0:Y2:0:X1:X0:Y1:0:Cb0:0:Y0:0
> 1:1:8:2:8:2:8:2:1:1:8:2:8:2:8:2 little endian */
> +#define DRM_FORMAT_X0L0 fourcc_code('X', '0', 'L', '0')
> +
> +/* [63:0] A3:A2:Y3:Cr0:Y2:A1:A0:Y1:Cb0:Y0 1:1:10:10:10:1:1:10:10:10
> little endian */
> +#define DRM_FORMAT_Y0L2 fourcc_code('Y', '0', 'L', '2')
> +/* [63:0] X3:X2:Y3:Cr0:Y2:X1:X0:Y1:Cb0:Y0 1:1:10:10:10:1:1:10:10:10
> little endian */
> +#define DRM_FORMAT_X0L2 fourcc_code('X', '0', 'L', '2')
> +
> /*
> * 2 plane RGB + A
> * index 0 = RGB plane, same format as the corresponding non _A8 format has
> --
> 2.18.0
>
--
====================
| I would like to |
| fix the world, |
| but they're not |
| giving me the |
\ source code! /
---------------
¯\_(ツ)_/¯
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