From 72f7a10cef85a3c8d1bb32f55e2ae6902ee0c3d5 Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <sezeroz@gmail.com>
Date: Thu, 25 Feb 2021 19:40:28 +0300
Subject: [PATCH] disable pixman ARM blitters for __aarch64__ | _M_ARM64

Closes:  https://github.com/libsdl-org/SDL/issues/4095
---
 src/video/SDL_blit.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/video/SDL_blit.h b/src/video/SDL_blit.h
index fd1087ffe..4b50c7dc3 100644
--- a/src/video/SDL_blit.h
+++ b/src/video/SDL_blit.h
@@ -27,6 +27,12 @@
 #include "SDL_endian.h"
 #include "SDL_surface.h"
 
+/* pixman ARM blitters are 32 bit only : */
+#if defined(__aarch64__)||defined(_M_ARM64)
+#undef SDL_ARM_SIMD_BLITTERS
+#undef SDL_ARM_NEON_BLITTERS
+#endif
+
 /* Table to do pixel byte expansion */
 extern Uint8* SDL_expand_byte[9];