diff options
| author | Uma Shankar <uma.shankar@intel.com> | 2019-06-28 13:32:28 +0530 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2019-07-10 15:20:49 +0300 |
| commit | 27ee72477c9b77ebf0e2827b8679b547ab556673 (patch) | |
| tree | 51f20baf2d2b0b2123a59b74674c3464d9f697ad /drivers/gpu | |
| parent | 14bfcd3e0daeb0f757a02aac85fd03e0933ab37e (diff) | |
drm/i915/icl: Handle YCbCr to RGB conversion for BT2020 case
Currently input csc for YCbCR to RGB conversion handles only
BT601 and Bt709. Extending it to support BT2020 as well.
v2: Fixed the co-efficients for LR to FR conversion,
as suggested by Ville.
v3: Fixed Y Pre-offset in case of Full Range YCbCr as suggested
by Ville.
v4: Split the v2 and v3 changes.
v5: Rebase
v6: Fix a rebase fumble.
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Shashank Sharma <shashank.sharma@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190628080230.27492-2-uma.shankar@intel.com
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_sprite.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_sprite.c b/drivers/gpu/drm/i915/display/intel_sprite.c index 34586f29be60..aeeeffbe4683 100644 --- a/drivers/gpu/drm/i915/display/intel_sprite.c +++ b/drivers/gpu/drm/i915/display/intel_sprite.c @@ -444,6 +444,18 @@ icl_program_input_csc(struct intel_plane *plane, 0x9EF8, 0x7800, 0xABF8, 0x0, 0x7800, 0x7ED8, }, + /* + * BT.2020 full range YCbCr -> full range RGB + * The matrix required is : + * [1.000, 0.000, 1.474, + * 1.000, -0.1645, -0.5713, + * 1.000, 1.8814, 0.0000] + */ + [DRM_COLOR_YCBCR_BT2020] = { + 0x7BC8, 0x7800, 0x0, + 0x8928, 0x7800, 0xAA88, + 0x0, 0x7800, 0x7F10, + }, }; /* Matrix for Limited Range to Full Range Conversion */ @@ -472,6 +484,18 @@ icl_program_input_csc(struct intel_plane *plane, 0x8888, 0x7918, 0xADA8, 0x0, 0x7918, 0x6870, }, + /* + * BT.2020 Limited range YCbCr -> full range RGB + * The matrix required is : + * [1.164, 0.000, 1.678, + * 1.164, -0.1873, -0.6504, + * 1.164, 2.1417, 0.0000] + */ + [DRM_COLOR_YCBCR_BT2020] = { + 0x7D70, 0x7950, 0x0, + 0x8A68, 0x7950, 0xAC00, + 0x0, 0x7950, 0x6890, + }, }; const u16 *csc; |