From 9fef0c49106ef717f0fa717928414f1b37d06f95 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: [PATCH] wined3d: Invalidate INDEXBUFFER device state when bound index
 buffer is unloaded.
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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 a81cd645e02..13953c9600e 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);