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| author | Robert Morell <rmorell@nvidia.com> | 2011-03-17 17:54:39 -0700 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:48:13 -0800 |
| commit | 627c235be502ea07cf66fac921af372e15164be9 (patch) | |
| tree | a20b749659bfeb26f1d503c983d57ae37ac034e2 /include/drm | |
| parent | bb7122aad0e248dedf2067e7672755ec9dab430e (diff) | |
drm_fixed: Add dfixed_frac
This helper macro retrieves the fractional part of a fixed20_12 20.12
fixed-point number.
bug 818525
Original-Change-Id: Ia43a7bd3029a4d09ad7801099cbe2a52a4fc9c04
Signed-off-by: Robert Morell <rmorell@nvidia.com>
Reviewed-on: http://git-master/r/40525
Reviewed-by: Varun Colbert <vcolbert@nvidia.com>
Tested-by: Varun Colbert <vcolbert@nvidia.com>
Rebase-Id: R3ad51cd6fb0e1dadbc25807bf12894a9b81e94d3
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/drm_fixed.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/drm/drm_fixed.h b/include/drm/drm_fixed.h index 4a08a664ff1f..0ead502e17d2 100644 --- a/include/drm/drm_fixed.h +++ b/include/drm/drm_fixed.h @@ -37,6 +37,7 @@ typedef union dfixed { #define dfixed_init(A) { .full = dfixed_const((A)) } #define dfixed_init_half(A) { .full = dfixed_const_half((A)) } #define dfixed_trunc(A) ((A).full >> 12) +#define dfixed_frac(A) ((A).full & ((1 << 12) - 1)) static inline u32 dfixed_floor(fixed20_12 A) { |