From d80f5d9b2d769fd0513ae0e026d8a56b5d56a1fe Mon Sep 17 00:00:00 2001
From: Egor Yusov <egor.yusov@gmail.com>
Date: Sat, 22 Dec 2018 22:56:19 -0800
Subject: Implemented split barriers (closed
 https://github.com/DiligentGraphics/DiligentCore/issues/43).

---
 Graphics/GraphicsEngineD3D11/src/DeviceContextD3D11Impl.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'Graphics/GraphicsEngineD3D11')

diff --git a/Graphics/GraphicsEngineD3D11/src/DeviceContextD3D11Impl.cpp b/Graphics/GraphicsEngineD3D11/src/DeviceContextD3D11Impl.cpp
index e04686a9..8ee4090b 100755
--- a/Graphics/GraphicsEngineD3D11/src/DeviceContextD3D11Impl.cpp
+++ b/Graphics/GraphicsEngineD3D11/src/DeviceContextD3D11Impl.cpp
@@ -1871,6 +1871,14 @@ namespace Diligent
             DEV_CHECK_ERR((Barrier.pTexture != nullptr) ^ (Barrier.pBuffer != nullptr), "Exactly one of pTexture or pBuffer must not be null");
             DEV_CHECK_ERR(Barrier.NewState != RESOURCE_STATE_UNKNOWN, "New resource state can't be unknown");
 
+            if (Barrier.TransitionType == STATE_TRANSITION_TYPE_BEGIN)
+            {
+                // Skip begin-split barriers
+                VERIFY(!Barrier.UpdateResourceState, "Resource state can't be updated in begin-split barrier");
+                continue;
+            }
+            VERIFY(Barrier.TransitionType == STATE_TRANSITION_TYPE_IMMEDIATE || Barrier.TransitionType == STATE_TRANSITION_TYPE_END, "Unexpected barrier type");
+
             if (Barrier.pTexture)
             {
                 auto* pTextureD3D11Impl = ValidatedCast<TextureBaseD3D11>(Barrier.pTexture);
-- 
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