wined3d: Flush the GL context before switching away from it.

We might end up not using the old context anymore after that and the GL implementation is allowed to delay executing commands indefinitely if we don't flush. Signed-off-by: Matteo Bruni <mbruni@codeweavers.com> Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

wined3d: Flush the GL context before switching away from it.
6dd054ca · Matteo Bruni · Alexandre Julliard · 7223330f · 6dd054ca
Commit 6dd054ca authored Nov 27, 2015 by Matteo Bruni Committed by Alexandre Julliard Nov 30, 2015
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context.c dlls/wined3d/context.c +5 -0

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--- a/dlls/wined3d/context.c
+++ b/dlls/wined3d/context.c
@@ -1129,6 +1129,11 @@ BOOL context_set_current(struct wined3d_context *ctx)
        }
        else
        {
+            if (wglGetCurrentContext())
+            {
+                TRACE("Flushing context %p before switching to %p.\n", old, ctx);
+                glFlush();
+            }
            old->current = 0;
        }
    }