tigervnc/SOURCES/tigervnc-argb-runtime-ximage-byteorder-selection.patch

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2022-05-17 08:51:15 +00:00
From 7ab92639848a6059e2b6b88499b008b9606f3af6 Mon Sep 17 00:00:00 2001
From: johnmartin-oracle <55413843+johnmartin-oracle@users.noreply.github.com>
Date: Thu, 27 Aug 2020 22:30:23 -0400
Subject: [PATCH] Update Surface_X11.cxx
Runtime sellection of ARGB XImage byte order
---
vncviewer/Surface_X11.cxx | 22 +++++++++++-----------
1 file changed, 11 insertions(+), 11 deletions(-)
diff --git a/vncviewer/Surface_X11.cxx b/vncviewer/Surface_X11.cxx
index 6562634dc..8944c3f71 100644
--- a/vncviewer/Surface_X11.cxx
+++ b/vncviewer/Surface_X11.cxx
@@ -123,17 +123,17 @@ void Surface::alloc()
// we find such a format
templ.type = PictTypeDirect;
templ.depth = 32;
-#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
- templ.direct.alpha = 0;
- templ.direct.red = 8;
- templ.direct.green = 16;
- templ.direct.blue = 24;
-#else
- templ.direct.alpha = 24;
- templ.direct.red = 16;
- templ.direct.green = 8;
- templ.direct.blue = 0;
-#endif
+ if (XImageByteOrder(fl_display) == MSBFirst) {
+ templ.direct.alpha = 0;
+ templ.direct.red = 8;
+ templ.direct.green = 16;
+ templ.direct.blue = 24;
+ } else {
+ templ.direct.alpha = 24;
+ templ.direct.red = 16;
+ templ.direct.green = 8;
+ templ.direct.blue = 0;
+ }
templ.direct.alphaMask = 0xff;
templ.direct.redMask = 0xff;
templ.direct.greenMask = 0xff;