From 903669d9581254e09c7e95bbc9308eb3edf9984d Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <icculus@icculus.org>
Date: Sat, 3 Aug 2019 16:27:46 -0400
Subject: [PATCH] quartz: Fix cursor transparency.

This patch originally came from:

https://github.com/kanjitalk755/SDL/commit/0296d5e601a5deb5ce2f540a8eafd64dd22dbe69

Fixes Bugzilla #4076.
---
 src/video/quartz/SDL_QuartzWM.m | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/video/quartz/SDL_QuartzWM.m b/src/video/quartz/SDL_QuartzWM.m
index d526424d4..6a0c98695 100644
--- a/src/video/quartz/SDL_QuartzWM.m
+++ b/src/video/quartz/SDL_QuartzWM.m
@@ -55,7 +55,7 @@ void QZ_FreeWMCursor     (_THIS, WMcursor *cursor) {
     
     /* copy data and mask, extending the mask to all black pixels because the inversion effect doesn't work with Cocoa's alpha-blended cursors */
     for (i = 0; i < (w+7)/8*h; i++) {
-        planes[0][i] = data[i] ^ 0xFF;
+        planes[0][i] = ~data[i] & mask[i];
         planes[1][i] = mask[i] | data[i];
     }