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drm/amd/display: allow chroma 1:1 scaling when sharpness is off

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[Why]
SPL code forces taps to 1 when ratio is 1:1 and sharpness is off
But for chroma 1:1, need taps > 1 to handle cositing

[How]
Do not force chroma taps to 1 when ratio is 1:1 for YUV420
Remove 420_CHROMA_BYPASS mode for scaler

Reviewed-by: Navid Assadian <navid.assadian@amd.com>
Signed-off-by: Samson Tam <Samson.Tam@amd.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@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
2024-11-07 19:05:03 -05:00
committed by Alex Deucher
parent c3ea03c2a1
commit 1df1d452d2
1 changed files with 20 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
drivers/gpu/drm/amd/display/dc/spl/dc_spl.c
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@@ -739,14 +739,13 @@ static enum scl_mode spl_get_dscl_mode(const struct spl_in *spl_in,
return SCL_MODE_SCALING_444_RGB_ENABLE;
}
/* Bypass YUV if at 1:1 with no ISHARP or if doing 2:1 YUV
* downscale without EASF
/*
* Bypass YUV if Y is 1:1 with no ISHARP
* Do not bypass UV at 1:1 for cositing to be applied
*/
if ((!enable_isharp) && (!enable_easf)) {
if (!enable_isharp) {
if (data->ratios.horz.value == one && data->ratios.vert.value == one)
return SCL_MODE_SCALING_420_LUMA_BYPASS;
if (data->ratios.horz_c.value == one && data->ratios.vert_c.value == one)
return SCL_MODE_SCALING_420_CHROMA_BYPASS;
}
return SCL_MODE_SCALING_420_YCBCR_ENABLE;
@@ -933,6 +932,7 @@ static bool spl_get_optimal_number_of_taps(
int min_taps_y, min_taps_c;
enum lb_memory_config lb_config;
bool skip_easf = false;
bool is_ycbcr = spl_dscl_is_video_format(spl_in->basic_in.format);
if (spl_scratch->scl_data.viewport.width > spl_scratch->scl_data.h_active &&
max_downscale_src_width != 0 &&
@@ -1074,10 +1074,9 @@ static bool spl_get_optimal_number_of_taps(
/* Sharpener requires scaler to be enabled, including for 1:1
* Check if ISHARP can be enabled
* If ISHARP is not enabled, for 1:1, set taps to 1 and disable
* EASF
* For case of 2:1 YUV where chroma is 1:1, set taps to 1 if
* EASF is not enabled
* If ISHARP is not enabled, set taps to 1 if ratio is 1:1
* except for chroma taps. Keep previous taps so it can
* handle cositing
*/
*enable_isharp = spl_get_isharp_en(spl_in, spl_scratch);
@@ -1087,20 +1086,28 @@ static bool spl_get_optimal_number_of_taps(
spl_scratch->scl_data.taps.h_taps = 1;
spl_scratch->scl_data.taps.v_taps = 1;
if (IDENTITY_RATIO(spl_scratch->scl_data.ratios.horz_c))
if (IDENTITY_RATIO(spl_scratch->scl_data.ratios.horz_c) && !is_ycbcr)
spl_scratch->scl_data.taps.h_taps_c = 1;
if (IDENTITY_RATIO(spl_scratch->scl_data.ratios.vert_c))
if (IDENTITY_RATIO(spl_scratch->scl_data.ratios.vert_c) && !is_ycbcr)
spl_scratch->scl_data.taps.v_taps_c = 1;
*enable_easf_v = false;
*enable_easf_h = false;
} else {
if ((!*enable_easf_h) &&
(IDENTITY_RATIO(spl_scratch->scl_data.ratios.horz)))
spl_scratch->scl_data.taps.h_taps = 1;
if ((!*enable_easf_v) &&
(IDENTITY_RATIO(spl_scratch->scl_data.ratios.vert)))
spl_scratch->scl_data.taps.v_taps = 1;
if ((!*enable_easf_h) && !is_ycbcr &&
(IDENTITY_RATIO(spl_scratch->scl_data.ratios.horz_c)))
spl_scratch->scl_data.taps.h_taps_c = 1;
if ((!*enable_easf_v) &&
if ((!*enable_easf_v) && !is_ycbcr &&
(IDENTITY_RATIO(spl_scratch->scl_data.ratios.vert_c)))
spl_scratch->scl_data.taps.v_taps_c = 1;
}
@@ -1111,8 +1118,7 @@ static bool spl_get_optimal_number_of_taps(
static void spl_set_black_color_data(enum spl_pixel_format format,
struct scl_black_color *scl_black_color)
{
bool ycbcr = format >= SPL_PIXEL_FORMAT_VIDEO_BEGIN
&& format <= SPL_PIXEL_FORMAT_VIDEO_END;
bool ycbcr = spl_dscl_is_video_format(format);
if (ycbcr) {
scl_black_color->offset_rgb_y = BLACK_OFFSET_RGB_Y;
scl_black_color->offset_rgb_cbcr = BLACK_OFFSET_CBCR;