Direct3D11 GFX device.

Engine/source/gfx/D3D11/gfxD3D11OcclusionQuery.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/gfxD3D11OcclusionQuery.h"
+
+#include "gui/3d/guiTSControl.h"
+
+#ifdef TORQUE_GATHER_METRICS
+// For TickMs define
+#include "T3D/gameBase/processList.h"
+#endif
+
+GFXD3D11OcclusionQuery::GFXD3D11OcclusionQuery(GFXDevice *device)
+ : GFXOcclusionQuery(device), 
+   mQuery(NULL)   
+{
+#ifdef TORQUE_GATHER_METRICS
+   mTimer = PlatformTimer::create();
+   mTimer->getElapsedMs();
+
+   mTimeSinceEnd = 0;
+   mBeginFrame = 0;
+#endif
+}
+
+GFXD3D11OcclusionQuery::~GFXD3D11OcclusionQuery()
+{
+   SAFE_RELEASE(mQuery);
+
+#ifdef TORQUE_GATHER_METRICS
+   SAFE_DELETE(mTimer);
+#endif
+}
+
+bool GFXD3D11OcclusionQuery::begin()
+{
+   if(GFXDevice::getDisableOcclusionQuery())
+      return true;
+
+   if (mQuery == NULL)
+   {
+      D3D11_QUERY_DESC queryDesc;
+      queryDesc.Query = D3D11_QUERY_OCCLUSION;
+      queryDesc.MiscFlags = 0;
+
+      HRESULT hRes = D3D11DEVICE->CreateQuery(&queryDesc, &mQuery);
+
+      if(FAILED(hRes))
+      {
+         AssertFatal(false, "GFXD3D11OcclusionQuery::begin - Hardware does not support D3D11 Occlusion-Queries, this should be caught before this type is created");
+      }
+
+      AssertISV(hRes != E_OUTOFMEMORY, "GFXD3D11OcclusionQuery::begin - Out of memory");
+   }
+
+   // Add a begin marker to the command buffer queue.
+   D3D11DEVICECONTEXT->Begin(mQuery);
+
+#ifdef TORQUE_GATHER_METRICS
+   mBeginFrame = GuiTSCtrl::getFrameCount();
+#endif
+
+   return true;
+}
+
+void GFXD3D11OcclusionQuery::end()
+{
+   if (GFXDevice::getDisableOcclusionQuery())
+      return;
+
+   // Add an end marker to the command buffer queue.
+   D3D11DEVICECONTEXT->End(mQuery);
+
+#ifdef TORQUE_GATHER_METRICS
+   AssertFatal( mBeginFrame == GuiTSCtrl::getFrameCount(), "GFXD3D11OcclusionQuery::end - ended query on different frame than begin!" );   
+   mTimer->getElapsedMs();
+   mTimer->reset();
+#endif
+}
+
+GFXD3D11OcclusionQuery::OcclusionQueryStatus GFXD3D11OcclusionQuery::getStatus(bool block, U32 *data)
+{
+   // If this ever shows up near the top of a profile then your system is 
+   // GPU bound or you are calling getStatus too soon after submitting it.
+   //
+   // To test if you are GPU bound resize your window very small and see if
+   // this profile no longer appears at the top.
+   //
+   // To test if you are calling getStatus to soon after submitting it,
+   // check the value of mTimeSinceEnd in a debug build. If it is < half the length
+   // of time to render an individual frame you could have problems.
+   PROFILE_SCOPE(GFXD3D11OcclusionQuery_getStatus);
+
+   if ( GFXDevice::getDisableOcclusionQuery() )
+      return NotOccluded;
+
+   if ( mQuery == NULL )
+      return Unset;
+
+#ifdef TORQUE_GATHER_METRICS
+   //AssertFatal( mBeginFrame < GuiTSCtrl::getFrameCount(), "GFXD3D11OcclusionQuery::getStatus - called on the same frame as begin!" );
+
+   //U32 mTimeSinceEnd = mTimer->getElapsedMs();
+   //AssertFatal( mTimeSinceEnd >= 5, "GFXD3DOcculsionQuery::getStatus - less than TickMs since called ::end!" );
+#endif
+
+   HRESULT hRes;
+   U64 dwOccluded = 0;
+
+   if ( block )
+   {      
+      while ((hRes = D3D11DEVICECONTEXT->GetData(mQuery, &dwOccluded, sizeof(U64), 0)) == S_FALSE);
+   }
+   else
+   {
+      hRes = D3D11DEVICECONTEXT->GetData(mQuery, &dwOccluded, sizeof(U64), 0);
+   }
+
+   if (hRes == S_OK)   
+   {
+      if (data != NULL)
+         *data = (U32)dwOccluded;
+
+      return dwOccluded > 0 ? NotOccluded : Occluded;   
+   }
+
+   if (hRes == S_FALSE)
+      return Waiting;
+
+   return Error;   
+}
+
+void GFXD3D11OcclusionQuery::zombify()
+{
+   SAFE_RELEASE( mQuery );
+}
+
+void GFXD3D11OcclusionQuery::resurrect()
+{
+	// Recreate the query 
+	if( mQuery == NULL ) 
+	{ 
+      D3D11_QUERY_DESC queryDesc;
+      queryDesc.Query = D3D11_QUERY_OCCLUSION;
+      queryDesc.MiscFlags = 0;
+
+      HRESULT hRes = D3D11DEVICE->CreateQuery(&queryDesc, &mQuery); 
+	
+      AssertISV( hRes != E_OUTOFMEMORY, "GFXD3D9QueryFence::resurrect - Out of memory" ); 
+   } 
+}
+
+const String GFXD3D11OcclusionQuery::describeSelf() const
+{
+   // We've got nothing
+   return String();
+}