From: Ville Syrjälä ville.syrjala@linux.intel.com
BT.2020 specifies two YCbCr<->RGB conversion formulas. The more traditional non-constant luminance and a more complicate constant luminance one. Add an enum value for the constant luminance variant as well in case someone has hardware supporting it.
v2: Reduce the enum name to fit within the 31 character uapi limit
Cc: Harry Wentland harry.wentland@amd.com Cc: Daniel Vetter daniel@ffwll.ch Cc: Daniel Stone daniel@fooishbar.org Cc: Russell King - ARM Linux linux@armlinux.org.uk Cc: Ilia Mirkin imirkin@alum.mit.edu Cc: Hans Verkuil hverkuil@xs4all.nl CC: Uma Shankar uma.shankar@intel.com Cc: Shashank Sharma shashank.sharma@intel.com Cc: Jyri Sarha jsarha@ti.com Signed-off-by: Ville Syrjälä ville.syrjala@linux.intel.com Acked-by: Harry Wentland harry.wentland@amd.com #v1 --- drivers/gpu/drm/drm_color_mgmt.c | 1 + include/drm/drm_color_mgmt.h | 3 ++- 2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_color_mgmt.c b/drivers/gpu/drm/drm_color_mgmt.c index 4ff064623836..cc28c32399af 100644 --- a/drivers/gpu/drm/drm_color_mgmt.c +++ b/drivers/gpu/drm/drm_color_mgmt.c @@ -358,6 +358,7 @@ static const char * const color_encoding_name[] = { [DRM_COLOR_YCBCR_BT601] = "ITU-R BT.601 YCbCr", [DRM_COLOR_YCBCR_BT709] = "ITU-R BT.709 YCbCr", [DRM_COLOR_YCBCR_BT2020] = "ITU-R BT.2020 YCbCr", + [DRM_COLOR_YCBCR_BT2020_CONST] = "ITU-R BT.2020 YCbCr const", };
static const char * const color_range_name[] = { diff --git a/include/drm/drm_color_mgmt.h b/include/drm/drm_color_mgmt.h index b3b6d302ca8c..175943c87d5b 100644 --- a/include/drm/drm_color_mgmt.h +++ b/include/drm/drm_color_mgmt.h @@ -41,7 +41,8 @@ int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, enum drm_color_encoding { DRM_COLOR_YCBCR_BT601, DRM_COLOR_YCBCR_BT709, - DRM_COLOR_YCBCR_BT2020, + DRM_COLOR_YCBCR_BT2020, /* non-constant luminance */ + DRM_COLOR_YCBCR_BT2020_CONST, /* constant luminance */ DRM_COLOR_ENCODING_MAX, };