drm: add helpers to go from plane state to drm_rect

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
[seanpaul resolved conflict in drm_plane.h]
Signed-off-by: Sean Paul <seanpaul@chromium.org>

1 files changed, 24 insertions, 0 deletions

diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h
index 29a1757..a421cb5 100644
--- a/include/drm/drm_plane.h
+++ b/include/drm/drm_plane.h
@@ -118,6 +118,30 @@ struct drm_plane_state {
 	struct drm_atomic_state *state;
 };
 
+static inline struct drm_rect
+drm_plane_state_src(const struct drm_plane_state *state)
+{
+	struct drm_rect src = {
+		.x1 = state->src_x,
+		.y1 = state->src_y,
+		.x2 = state->src_x + state->src_w,
+		.y2 = state->src_y + state->src_h,
+	};
+	return src;
+}
+
+static inline struct drm_rect
+drm_plane_state_dest(const struct drm_plane_state *state)
+{
+	struct drm_rect dest = {
+		.x1 = state->crtc_x,
+		.y1 = state->crtc_y,
+		.x2 = state->crtc_x + state->crtc_w,
+		.y2 = state->crtc_y + state->crtc_h,
+	};
+	return dest;
+}
+
 /**
  * struct drm_plane_funcs - driver plane control functions
  */