Added patch to invalidate INDEXBUFFER device state when bound index buffer is unloaded.

patches/wined3d-Invalidate_INDEXBUFFER/0001-wined3d-Invalidate-INDEXBUFFER-device-state-when-bou.patch

@@ -0,0 +1,39 @@
+From cda4f405aae949edf1ad29b2277b28a57c661ad5 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?J=C3=B3zef=20Kucia?= <jkucia@codeweavers.com>
+Date: Mon, 31 Oct 2016 12:48:31 +0100
+Subject: wined3d: Invalidate INDEXBUFFER device state when bound index buffer
+ is unloaded.
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Fixes a regression introduced by commit
+e3a8cd20ced9f33db64a35f60bc8487ae8173e47.
+
+Signed-off-by: Józef Kucia <jkucia@codeweavers.com>
+Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
+Signed-off-by: Alexandre Julliard <julliard@winehq.org>
+---
+ dlls/wined3d/buffer.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/dlls/wined3d/buffer.c b/dlls/wined3d/buffer.c
+index a81cd64..13953c9 100644
+--- a/dlls/wined3d/buffer.c
++++ b/dlls/wined3d/buffer.c
+@@ -665,7 +665,12 @@ static void buffer_unload(struct wined3d_resource *resource)
+          * happens only once per changed vertexbuffer and should occur rather
+          * rarely. */
+         if (resource->bind_count)
++        {
+             device_invalidate_state(device, STATE_STREAMSRC);
++
++            if (buffer->buffer_type_hint == GL_ELEMENT_ARRAY_BUFFER)
++                device_invalidate_state(device, STATE_INDEXBUFFER);
++        }
+     }
+ 
+     resource_unload(resource);
+-- 
+2.9.0
+