From bc7cbf11739a774461053a4e63e0899d88b4e564 Mon Sep 17 00:00:00 2001
From: Geoffrey McRae <geoff@hostfission.com>
Date: Sun, 24 Oct 2021 13:31:41 +1100
Subject: [PATCH] [common] fix out by one error in `rectsIntersect`

---
 common/src/rects.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/common/src/rects.c b/common/src/rects.c
index 6c3cdbc4..0376406a 100644
--- a/common/src/rects.c
+++ b/common/src/rects.c
@@ -203,10 +203,11 @@ void rectsFramebufferToBuffer(FrameDamageRect * rects, int count,
 
 inline static bool rectIntersects(const FrameDamageRect * r1, const FrameDamageRect * r2)
 {
-  return r1->x < r2->x + r2->width &&
-         r1->x + r1->width > r2->x &&
-         r1->y < r2->y + r2->height &&
-         r1->y + r1->height > r2->y;
+  return !(
+    r1->x > r2->x + r2->width  ||
+    r2->x > r1->x + r1->width  ||
+    r1->y > r2->y + r2->height ||
+    r2->y > r1->y + r1->height);
 }
 
 int rectsMergeOverlapping(FrameDamageRect * rects, int count)