diff options
| author | Robert Fekete <robert.fekete@linux.intel.com> | 2015-11-02 16:14:08 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-11-24 11:41:53 +0100 |
| commit | d9c382421771560c6b282c100752a3c194cb5827 (patch) | |
| tree | dfe17089d5573a28ecf286140bff24284b7e123e /include/drm | |
| parent | cb1197173f46003616bcacbe2fea55ec3dd90e91 (diff) | |
drm: Describe the Rotation property bits.
Adds clarification of the rotation property bits. I.e. rotation is
counter clockwise and that reflects are applied before any rotation.
v2: Refer to the define names instead of the property values.
Signed-off-by: Robert Fekete <robert.fekete@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/drm_crtc.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 3f0c6909dda1..f47cefa37ef3 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -85,7 +85,11 @@ static inline uint64_t I642U64(int64_t val) return (uint64_t)*((uint64_t *)&val); } -/* rotation property bits */ +/* + * Rotation property bits. DRM_ROTATE_<degrees> rotates the image by the + * specified amount in degrees in counter clockwise direction. DRM_REFLECT_X and + * DRM_REFLECT_Y reflects the image along the specified axis prior to rotation + */ #define DRM_ROTATE_MASK 0x0f #define DRM_ROTATE_0 0 #define DRM_ROTATE_90 1 |