Direct3D11 GFX device.

Engine/source/gfx/D3D11/gfxD3D11QueryFence.cpp

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+//-----------------------------------------------------------------------------
+// Copyright (c) 2015 GarageGames, LLC
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//-----------------------------------------------------------------------------
+
+#include "gfx/D3D11/gfxD3D11Device.h"
+#include "gfx/D3D11/gfxD3D11QueryFence.h"
+
+GFXD3D11QueryFence::~GFXD3D11QueryFence()
+{
+   SAFE_RELEASE(mQuery);
+}
+
+void GFXD3D11QueryFence::issue()
+{
+   PROFILE_START(GFXD3D11QueryFence_issue);
+
+   // Create the query if we need to
+   if(mQuery == NULL)
+   {
+      D3D11_QUERY_DESC QueryDesc;
+      QueryDesc.Query = D3D11_QUERY_EVENT;
+      QueryDesc.MiscFlags = 0;
+
+      HRESULT hRes = D3D11DEVICE->CreateQuery(&QueryDesc, &mQuery);
+
+      if(FAILED(hRes))
+      {
+         AssertFatal(false, "Hardware does not support D3D11 Queries, this should be caught before this fence type is created" );
+      }
+
+      AssertISV(hRes != E_OUTOFMEMORY, "Out of memory");
+   }
+
+   // Issue the query
+   D3D11DEVICECONTEXT->End(mQuery);
+   PROFILE_END();
+}
+
+GFXFence::FenceStatus GFXD3D11QueryFence::getStatus() const
+{
+   if(mQuery == NULL)
+      return GFXFence::Unset;
+
+   HRESULT hRes = D3D11DEVICECONTEXT->GetData(mQuery, NULL, 0, 0);
+
+   return (hRes == S_OK ? GFXFence::Processed : GFXFence::Pending);
+}
+
+void GFXD3D11QueryFence::block()
+{
+   PROFILE_SCOPE(GFXD3D11QueryFence_block);
+
+   // Calling block() before issue() is valid, catch this case
+   if( mQuery == NULL )
+      return;
+
+   HRESULT hRes;
+   while((hRes = D3D11DEVICECONTEXT->GetData(mQuery, NULL, 0, 0)) == S_FALSE); //D3DGETDATA_FLUSH
+
+}
+
+void GFXD3D11QueryFence::zombify()
+{
+   // Release our query
+   SAFE_RELEASE( mQuery );
+}
+
+void GFXD3D11QueryFence::resurrect()
+{
+   // Recreate the query
+   if(mQuery == NULL)
+   {
+      D3D11_QUERY_DESC QueryDesc;
+      QueryDesc.Query = D3D11_QUERY_EVENT;
+      QueryDesc.MiscFlags = 0;
+
+      HRESULT hRes = D3D11DEVICE->CreateQuery(&QueryDesc, &mQuery);
+
+      if(FAILED(hRes))
+      {
+         AssertFatal(false, "GFXD3D11QueryFence::resurrect - Hardware does not support D3D11 Queries, this should be caught before this fence type is created");
+      }
+
+      AssertISV(hRes != E_OUTOFMEMORY, "GFXD3D11QueryFence::resurrect - Out of memory");
+   }
+}
+
+const String GFXD3D11QueryFence::describeSelf() const
+{
+   // We've got nothing
+   return String();
+}