diff options
| author | David Francis <David.Francis@amd.com> | 2019-02-11 22:15:19 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-03-19 23:04:03 +0300 |
| commit | f91813992c343272813e707343b50f8d06383659 (patch) | |
| tree | 2c0a92d54cae8161f6b030154c185642e207bb30 /drivers/gpu/drm/amd/display/modules | |
| parent | 87d44f62d51fddce9dd7c0a7badc3e6723b30e9d (diff) | |
| download | linux-f91813992c343272813e707343b50f8d06383659.tar.xz | |
drm/amd/display: Re-add custom degamma support
[Why]
The dc_gamma_type CUSTOM_GAMMA is used to represent degamma
mappings passed in by drm. This type of gamma must be interpolated
into a transfer function by apply_1d_lut. The line in
mod_color_calculate_degamma_params that handled this case
was erroneously removed.
[How]
For CUSTOM_GAMMA degamma, calculate the lut as before.
Signed-off-by: David Francis <David.Francis@amd.com>
Reviewed-by: Krunoslav Kovac <Krunoslav.Kovac@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/modules')
| -rw-r--r-- | drivers/gpu/drm/amd/display/modules/color/color_gamma.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/modules/color/color_gamma.c b/drivers/gpu/drm/amd/display/modules/color/color_gamma.c index 0fbc8fbc3541..a1055413bade 100644 --- a/drivers/gpu/drm/amd/display/modules/color/color_gamma.c +++ b/drivers/gpu/drm/amd/display/modules/color/color_gamma.c @@ -1854,6 +1854,8 @@ bool mod_color_calculate_degamma_params(struct dc_transfer_func *input_tf, coordinates_x, axis_x, curve, MAX_HW_POINTS, tf_pts, mapUserRamp && ramp && ramp->type == GAMMA_RGB_256); + if (ramp->type == GAMMA_CUSTOM) + apply_lut_1d(ramp, MAX_HW_POINTS, tf_pts); ret = true; |