From d8a3a1ee93d3b6dd2235e1ac5d563240326d6d0f Mon Sep 17 00:00:00 2001
From: Jaakko Keränen <jaakko.keranen@iki.fi>
Date: Sun, 15 Aug 2021 07:08:35 +0300
Subject: macOS: Workaround for an apparent SDL regression

On macOS with SDL 2.0.16, there's a problem with the bottom right corner of a rectangle drawn as a line strip being off by one.

SDL_RenderDrawLines() is behaving oddly on macOS with SDL 2.0.16.
---
 src/ui/paint.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/ui/paint.c b/src/ui/paint.c
index c575d5fc..869238d5 100644
--- a/src/ui/paint.c
+++ b/src/ui/paint.c
@@ -91,9 +91,13 @@ void drawRect_Paint(const iPaint *d, iRect rect, int color) {
     if (br.y == d->dst->size.y) br.y--;
     const SDL_Point edges[] = {
         { left_Rect(rect),  top_Rect(rect) },
-        { br.x, top_Rect(rect) },
-        { br.x, br.y },
+        { br.x,             top_Rect(rect) },
+        { br.x,             br.y },
+#if SDL_VERSION_ATLEAST(2, 0, 16) && defined (iPlatformApple)
+        { left_Rect(rect),  br.y - 1 }, /* regression in SDL 2.0.16? */
+#else
         { left_Rect(rect),  br.y },
+#endif
         { left_Rect(rect),  top_Rect(rect) }
     };
     setColor_Paint_(d, color);
-- 
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