From 70084d044f03d9dca3a14869b596763e42440123 Mon Sep 17 00:00:00 2001
From: Egor Yusov <egor.yusov@gmail.com>
Date: Wed, 21 Nov 2018 20:29:18 -0800
Subject: Fixed issue with state transitions in d3d11 backend

---
 Graphics/GraphicsEngineD3D11/include/BufferD3D11Impl.h  | 8 +++++++-
 Graphics/GraphicsEngineD3D11/include/TextureBaseD3D11.h | 8 +++++++-
 2 files changed, 14 insertions(+), 2 deletions(-)

(limited to 'Graphics/GraphicsEngineD3D11')

diff --git a/Graphics/GraphicsEngineD3D11/include/BufferD3D11Impl.h b/Graphics/GraphicsEngineD3D11/include/BufferD3D11Impl.h
index c0d47666..2e6510dd 100644
--- a/Graphics/GraphicsEngineD3D11/include/BufferD3D11Impl.h
+++ b/Graphics/GraphicsEngineD3D11/include/BufferD3D11Impl.h
@@ -69,7 +69,13 @@ public:
     virtual void* GetNativeHandle()override final { return GetD3D11Buffer(); }
 
     void AddState  (RESOURCE_STATE State){m_State = static_cast<RESOURCE_STATE>(m_State | State);}
-    void ClearState(RESOURCE_STATE State){m_State = static_cast<RESOURCE_STATE>(m_State & ~static_cast<Uint32>(State));}
+    void ClearState(RESOURCE_STATE State)
+    {
+        VERIFY_EXPR(IsInKnownState());
+        m_State = static_cast<RESOURCE_STATE>(m_State & ~static_cast<Uint32>(State));
+        if (!IsInKnownState())
+            SetState(RESOURCE_STATE_UNDEFINED);
+    }
 
 private:
     virtual void CreateViewInternal( const struct BufferViewDesc &ViewDesc, IBufferView **ppView, bool bIsDefaultView )override;
diff --git a/Graphics/GraphicsEngineD3D11/include/TextureBaseD3D11.h b/Graphics/GraphicsEngineD3D11/include/TextureBaseD3D11.h
index f17bba70..7bb89a7e 100644
--- a/Graphics/GraphicsEngineD3D11/include/TextureBaseD3D11.h
+++ b/Graphics/GraphicsEngineD3D11/include/TextureBaseD3D11.h
@@ -81,7 +81,13 @@ public:
                   Uint32          DstZ);
 
     void AddState  (RESOURCE_STATE State){m_State = static_cast<RESOURCE_STATE>(m_State | State);}
-    void ClearState(RESOURCE_STATE State){m_State = static_cast<RESOURCE_STATE>(m_State & ~static_cast<Uint32>(State));}
+    void ClearState(RESOURCE_STATE State)
+    {
+        VERIFY_EXPR(IsInKnownState());
+        m_State = static_cast<RESOURCE_STATE>(m_State & ~static_cast<Uint32>(State));
+        if (!IsInKnownState())
+            SetState(RESOURCE_STATE_UNDEFINED);
+    }
 
 protected:
     void CreateViewInternal( const struct TextureViewDesc &ViewDesc, ITextureView **ppView, bool bIsDefaultView )override final;
-- 
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