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drm/amd/display: Fix distribution of segments for PQ

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For PQ case, redistribution of segments should be done differently
for FP16 case in order to handle content above FP16 value of 1.0

Signed-off-by: Anthony Koo <anthony.koo@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Anthony Koo 2016-12-16 12:12:03 -05:00 committed by Alex Deucher
parent ab3ee7a556
commit 4a69244eb6
1 changed files with 48 additions and 3 deletions
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51
drivers/gpu/drm/amd/display/dc/calcs/gamma_calcs.c
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@ -387,6 +387,49 @@ static bool build_hw_curve_configuration(
return result;
}
static bool setup_distribution_points_pq(
struct gamma_curve *arr_curve_points,
struct curve_points *arr_points,
uint32_t *hw_points_num,
struct hw_x_point *coordinates_x,
enum surface_pixel_format format)
{
struct curve_config cfg;
cfg.offset = 0;
cfg.segments[0] = 2;
cfg.segments[1] = 2;
cfg.segments[2] = 2;
cfg.segments[3] = 2;
cfg.segments[4] = 2;
cfg.segments[5] = 2;
cfg.segments[6] = 3;
cfg.segments[7] = 4;
cfg.segments[8] = 4;
cfg.segments[9] = 4;
cfg.segments[10] = 4;
cfg.segments[11] = 5;
cfg.segments[12] = 5;
cfg.segments[13] = 5;
cfg.segments[14] = 5;
cfg.segments[15] = 5;
if (format == SURFACE_PIXEL_FORMAT_GRPH_ARGB16161616F ||
format == SURFACE_PIXEL_FORMAT_GRPH_ABGR16161616F)
cfg.begin = -11;
else
cfg.begin = -16;
if (!build_hw_curve_configuration(
&cfg, arr_curve_points,
arr_points,
coordinates_x, hw_points_num)) {
ASSERT_CRITICAL(false);
return false;
}
return true;
}
static bool setup_distribution_points(
struct gamma_curve *arr_curve_points,
struct curve_points *arr_points,
@ -1414,15 +1457,17 @@ bool calculate_regamma_params(struct pwl_params *params,
scale_gamma(rgb_user, ramp, dividers);
setup_distribution_points(arr_curve_points, arr_points,
&params->hw_points_num, coordinates_x);
if (stream->public.out_transfer_func &&
stream->public.out_transfer_func->tf == TRANSFER_FUNCTION_PQ) {
setup_distribution_points_pq(arr_curve_points, arr_points,
&params->hw_points_num, coordinates_x,
surface->public.format);
build_regamma_curve_pq(rgb_regamma, rgb_oem, coeff128_oem,
ramp, surface, params->hw_points_num,
coordinates_x, axix_x_256, dividers);
} else {
setup_distribution_points(arr_curve_points, arr_points,
&params->hw_points_num, coordinates_x);
build_regamma_curve(rgb_regamma, rgb_oem, coeff128_oem,
ramp, surface, params->hw_points_num,
coordinates_x, axix_x_256, dividers);