github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-27 16:44:58 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

drm/amd/display: add support for chroma offset

Browse Source 
[Why]
Adding support for chroma subsampling offset (cositing) in scaler
calculations to adjust reference point where we determine post-scaling
chroma value in YUV420 surfaces.

[How]
Add support for cositing options: NONE, LEFT and TOPLEFT Add debug
option force_cositing and set default to TOPLEFT to maintain same
behaviour as without offset support.

Reviewed-by: Jun Lei <jun.lei@amd.com>
Acked-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Samson Tam <samson.tam@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Samson Tam 2024-04-01 13:51:58 -04:00 committed by Alex Deucher
parent d7fedf2656
commit ef319dff54
2 changed files with 10 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/amd/display/dc/dc.h
View File

@ -1003,6 +1003,7 @@ struct dc_debug_options {
unsigned int static_screen_wait_frames;
bool force_chroma_subsampling_1tap;
bool disable_422_left_edge_pixel;
unsigned int force_cositing;
};
struct gpu_info_soc_bounding_box_v1_0;
@ -1285,6 +1286,7 @@ struct dc_plane_state {
struct tg_color visual_confirm_color;
bool is_statically_allocated;
enum chroma_cositing cositing;
};
struct dc_plane_info {
@ -1303,6 +1305,7 @@ struct dc_plane_info {
int global_alpha_value;
bool input_csc_enabled;
int layer_index;
enum chroma_cositing cositing;
};
#include "dc_stream.h"

7
drivers/gpu/drm/amd/display/dc/dc_hw_types.h
View File

@ -738,6 +738,13 @@ enum scanning_type {
SCANNING_TYPE_UNDEFINED
};
enum chroma_cositing {
CHROMA_COSITING_NONE,
CHROMA_COSITING_LEFT,
CHROMA_COSITING_TOPLEFT,
CHROMA_COSITING_COUNT
};
struct dc_crtc_timing_flags {
uint32_t INTERLACE :1;
uint32_t HSYNC_POSITIVE_POLARITY :1; /* when set to 1,