From 365cd4adeb7c8719d438ff2438c1db5726c90c54 Mon Sep 17 00:00:00 2001
From: Rafael Roquetto <rafael.roquetto@kdab.com>
Date: Mon, 2 Jun 2014 17:12:37 -0300
Subject: QNX: fix race condition when clearing transparent buffer

Block flush until all bits have been flushed. This prevents Qt from trying to
draw over the buffer while it is still being cleared.

Change-Id: I49b90a7653ec3768411a1a94837bb31fec4d44e8
Reviewed-by: Frank Osterfeld <frank.osterfeld@kdab.com>
Reviewed-by: Andreas Holzammer <andreas.holzammer@kdab.com>
Reviewed-by: Bernd Weimer <bweimer@blackberry.com>
---
 src/plugins/platforms/qnx/qqnxrasterbackingstore.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/plugins/platforms/qnx/qqnxrasterbackingstore.cpp b/src/plugins/platforms/qnx/qqnxrasterbackingstore.cpp
index e0ecb5c798..7ae042cb50 100644
--- a/src/plugins/platforms/qnx/qqnxrasterbackingstore.cpp
+++ b/src/plugins/platforms/qnx/qqnxrasterbackingstore.cpp
@@ -185,8 +185,8 @@ void QQnxRasterBackingStore::beginPaint(const QRegion &region)
                                             platformWindow()->renderBuffer().nativeBuffer(), bg),
                                 "failed to clear transparent regions");
         }
-        Q_SCREEN_CHECKERROR(screen_flush_blits(platformWindow()->screen()->nativeContext(), 0),
-                            "failed to flush blits");
+        Q_SCREEN_CHECKERROR(screen_flush_blits(platformWindow()->screen()->nativeContext(),
+                    SCREEN_WAIT_IDLE), "failed to flush blits");
     }
 }
 
-- 
cgit v1.2.3