From a770a88e0962f37c0b6f36f1876cbf27db4cf3c9 Mon Sep 17 00:00:00 2001
From: David De Sousa <davidesousa@gmail.com>
Date: Sat, 13 Jul 2024 12:53:53 +0200
Subject: [PATCH] toplevelexport: fix flipped r/b channels when sharing windows
 (#6861)

fixes #6823
---
 src/protocols/ToplevelExport.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/protocols/ToplevelExport.cpp b/src/protocols/ToplevelExport.cpp
index 287538b5..d4c66c3b 100644
--- a/src/protocols/ToplevelExport.cpp
+++ b/src/protocols/ToplevelExport.cpp
@@ -409,7 +409,8 @@ bool CToplevelExportProtocolManager::copyFrameShm(SScreencopyFrame* frame, times
 
     glPixelStorei(GL_PACK_ALIGNMENT, 1);
 
-    glReadPixels(0, 0, frame->box.width, frame->box.height, PFORMAT->glFormat, PFORMAT->glType, pixelData);
+    auto glFormat = PFORMAT->flipRB ? GL_BGRA_EXT : GL_RGBA;
+    glReadPixels(0, 0, frame->box.width, frame->box.height, glFormat, PFORMAT->glType, pixelData);
 
     if (frame->overlayCursor) {
         g_pPointerManager->unlockSoftwareForMonitor(PMONITOR->self.lock());