diff options
| author | George Shen <george.shen@amd.com> | 2024-02-07 14:40:34 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-03-20 13:37:03 -0400 |
| commit | e2fdd5c5257dcb5afcd5557d4b009e4982d86da6 (patch) | |
| tree | 510a2191b7ce290c1b8ec7c77b81da49e275f7a0 /drivers/gpu/drm/amd/display/dc/inc | |
| parent | f2703a3596a279b0be6eeed4c500bdbaa8dc3ce4 (diff) | |
drm/amd/display: Add left edge pixel for YCbCr422/420 + ODM pipe split
[WHY]
Currently 3-tap chroma subsampling is used for YCbCr422/420. When ODM
pipesplit is used, pixels on the left edge of ODM slices need one extra
pixel from the right edge of the previous slice to calculate the correct
chroma value.
Without this change, the chroma value is slightly different than
expected. This is usually imperceptible visually, but it impacts test
pattern CRCs for compliance test automation.
[HOW]
Update logic to use the register for adding extra left edge pixel for
YCbCr422/420 ODM cases.
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: George Shen <george.shen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/inc')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/inc/core_types.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/inc/resource.h | 4 |
2 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/inc/core_types.h b/drivers/gpu/drm/amd/display/dc/inc/core_types.h index b1b72e688f74..e034cbb40620 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/core_types.h +++ b/drivers/gpu/drm/amd/display/dc/inc/core_types.h @@ -333,6 +333,8 @@ struct stream_resource { uint8_t gsl_group; struct test_pattern_params test_pattern_params; + + bool left_edge_extra_pixel; }; struct plane_resource { diff --git a/drivers/gpu/drm/amd/display/dc/inc/resource.h b/drivers/gpu/drm/amd/display/dc/inc/resource.h index 77a60aa9f27b..b14d52e52fa2 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/resource.h +++ b/drivers/gpu/drm/amd/display/dc/inc/resource.h @@ -107,6 +107,10 @@ void resource_build_test_pattern_params( struct resource_context *res_ctx, struct pipe_ctx *pipe_ctx); +void resource_build_subsampling_params( + struct resource_context *res_ctx, + struct pipe_ctx *pipe_ctx); + bool resource_build_scaling_params(struct pipe_ctx *pipe_ctx); enum dc_status resource_build_scaling_params_for_context( |