diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.c')
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.c b/drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.c index 7600a4a4abc7..07d18e78de49 100644 --- a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.c +++ b/drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.c @@ -73,6 +73,17 @@ float dcn_bw_floor2(const float arg, const float significance) return 0; return ((int) (arg / significance)) * significance; } +float dcn_bw_floor(const float arg) +{ + return ((int) (arg)); +} + +float dcn_bw_ceil(const float arg) +{ + float flr = dcn_bw_floor2(arg, 1); + + return flr + 0.00001 >= arg ? arg : flr + 1; +} float dcn_bw_ceil2(const float arg, const float significance) { @@ -109,6 +120,15 @@ float dcn_bw_pow(float a, float exp) } } +double dcn_bw_fabs(double a) +{ + if (a > 0) + return (a); + else + return (-a); +} + + float dcn_bw_log(float a, float b) { int * const exp_ptr = (int *)(&a); |