diff options
| author | Robert Morell <rmorell@nvidia.com> | 2012-04-25 05:45:01 -0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2012-04-27 04:29:35 -0400 |
| commit | f7f6c340f9d8f11bee50aef647b8578348957936 (patch) | |
| tree | 3c4593baa3a02dd6f06070bf5bcb459b3cf94ee3 /include/drm/drm_fixed.h | |
| parent | 398b4706896ee8d8e72f215a089b58637add5c92 (diff) | |
drm: fixed: Add dfixed_frac
This helper macro retrieves the fractional part of a fixed20_12 20.12
fixed-point number.
Signed-off-by: Robert Morell <rmorell@nvidia.com>
Signed-off-by: Olof Johansson <olofj@chromium.org>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'include/drm/drm_fixed.h')
| -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 { | |||
| 37 | #define dfixed_init(A) { .full = dfixed_const((A)) } | 37 | #define dfixed_init(A) { .full = dfixed_const((A)) } |
| 38 | #define dfixed_init_half(A) { .full = dfixed_const_half((A)) } | 38 | #define dfixed_init_half(A) { .full = dfixed_const_half((A)) } |
| 39 | #define dfixed_trunc(A) ((A).full >> 12) | 39 | #define dfixed_trunc(A) ((A).full >> 12) |
| 40 | #define dfixed_frac(A) ((A).full & ((1 << 12) - 1)) | ||
| 40 | 41 | ||
| 41 | static inline u32 dfixed_floor(fixed20_12 A) | 42 | static inline u32 dfixed_floor(fixed20_12 A) |
| 42 | { | 43 | { |