diff options
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/drm_fourcc.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/drm/drm_fourcc.h b/include/drm/drm_fourcc.h index 30c30fa87ee8..135fef050ee6 100644 --- a/include/drm/drm_fourcc.h +++ b/include/drm/drm_fourcc.h @@ -25,6 +25,27 @@ #include <linux/types.h> #include <uapi/drm/drm_fourcc.h> +/** + * struct drm_format_info - information about a DRM format + * @format: 4CC format identifier (DRM_FORMAT_*) + * @depth: Color depth (number of bits per pixel excluding padding bits), + * valid for a subset of RGB formats only. This is a legacy field, do not + * use in new code and set to 0 for new formats. + * @num_planes: Number of color planes (1 to 3) + * @cpp: Number of bytes per pixel (per plane) + * @hsub: Horizontal chroma subsampling factor + * @vsub: Vertical chroma subsampling factor + */ +struct drm_format_info { + u32 format; + u8 depth; + u8 num_planes; + u8 cpp[3]; + u8 hsub; + u8 vsub; +}; + +const struct drm_format_info *drm_format_info(u32 format); uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth); void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, int *bpp); int drm_format_num_planes(uint32_t format); |