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* [PATCH] drm: Clarify DRM_MODE_REFLECT_X/Y documentation
@ 2018-08-10 17:50 Alexandru Gheorghe
  2018-08-10 18:13 ` Sean Paul
  2018-08-14  8:36 ` Daniel Vetter
  0 siblings, 2 replies; 6+ messages in thread
From: Alexandru Gheorghe @ 2018-08-10 17:50 UTC (permalink / raw)
  To: seanpaul, airlied, dri-devel, maarten.lankhorst, gustavo
  Cc: nd, Alexandru Gheorghe

DRM_MODE_REFLECT_X and DRM_MODE_REFLECT_Y meaning seems a bit unclear
to me, so try to clarify that with a bit of ascii graphics.

Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>
---
 include/uapi/drm/drm_mode.h | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h
index 8d67243952f4..ac5de85c93eb 100644
--- a/include/uapi/drm/drm_mode.h
+++ b/include/uapi/drm/drm_mode.h
@@ -186,9 +186,18 @@ extern "C" {
 /*
  * DRM_MODE_REFLECT_<axis>
  *
- * Signals that the contents of a drm plane is reflected in the <axis> axis,
+ * Signals that the contents of a drm plane is reflected along the <axis> axis,
  * in the same way as mirroring.
  *
+ * DRM_MODE_REFLECT_X
+ * |o |    | o|
+ * |  | -> |  |
+ * | v|    |v |
+ *
+ * DRM_MODE_REFLECT_Y
+ * |o |    | ^|
+ * |  | -> |  |
+ * | v|    |o |
  * This define is provided as a convenience, looking up the property id
  * using the name->prop id lookup is the preferred method.
  */
-- 
2.18.0

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end of thread, other threads:[~2018-08-21  9:20 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2018-08-10 17:50 [PATCH] drm: Clarify DRM_MODE_REFLECT_X/Y documentation Alexandru Gheorghe
2018-08-10 18:13 ` Sean Paul
2018-08-14  8:36 ` Daniel Vetter
2018-08-20  9:10   ` Alexandru-Cosmin Gheorghe
2018-08-21  8:54     ` Daniel Vetter
2018-08-21  9:20       ` Alexandru-Cosmin Gheorghe

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