From 4e9646a7f74da5f91b164b0b0a411b4b1f3c731d Mon Sep 17 00:00:00 2001
From: Sebastian Lackner <sebastian@fds-team.de>
Date: Tue, 1 Oct 2013 07:29:05 +0200
Subject: [PATCH] winex11: Call sync_context for DC_GL_CHILD_WIN drawables
 before swapping buffers.

---
 dlls/winex11.drv/opengl.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dlls/winex11.drv/opengl.c b/dlls/winex11.drv/opengl.c
index 3e8480ba5c2..e9a04333f16 100644
--- a/dlls/winex11.drv/opengl.c
+++ b/dlls/winex11.drv/opengl.c
@@ -3220,6 +3220,7 @@ static BOOL glxdrv_wglSwapBuffers( HDC hdc )
         pglXSwapBuffers(gdi_display, gl->drawable);
         break;
     case DC_GL_CHILD_WIN:
+        if (ctx) sync_context( ctx );
         escape.gl_drawable = gl->drawable;
         /* fall through */
     default: