From: Thierry Reding treding@nvidia.com
This is useful for checking at runtime whether a given modifier is from a specific vendor so that any vendor-specific parsing can be done.
Signed-off-by: Thierry Reding treding@nvidia.com --- include/uapi/drm/drm_fourcc.h | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h index f76de49c768f..567fd4566e08 100644 --- a/include/uapi/drm/drm_fourcc.h +++ b/include/uapi/drm/drm_fourcc.h @@ -366,6 +366,9 @@ extern "C" {
#define DRM_FORMAT_RESERVED ((1ULL << 56) - 1)
+#define fourcc_mod_is_vendor(modifier, vendor) \ + ((((modifier) >> 56) & 0xff) == DRM_FORMAT_MOD_VENDOR_## vendor) + #define fourcc_mod_code(vendor, val) \ ((((__u64)DRM_FORMAT_MOD_VENDOR_## vendor) << 56) | ((val) & 0x00ffffffffffffffULL))