Reworked D3D12DynamicHeap to use release queues

2 files changed, 88 insertions, 0 deletions

diff --git a/Graphics/GraphicsEngineNextGenBase/CMakeLists.txt b/Graphics/GraphicsEngineNextGenBase/CMakeLists.txt
index a86156bb..20173b9b 100644
--- a/Graphics/GraphicsEngineNextGenBase/CMakeLists.txt
+++ b/Graphics/GraphicsEngineNextGenBase/CMakeLists.txt
@@ -3,6 +3,7 @@ cmake_minimum_required (VERSION 3.6)
 project(GraphicsEngineNextGenBase CXX)
 
 set(INCLUDE 
+    include/DeviceContextNextGenBase.h
     include/DynamicHeap.h
     include/RenderDeviceNextGenBase.h
 )
diff --git a/Graphics/GraphicsEngineNextGenBase/include/DeviceContextNextGenBase.h b/Graphics/GraphicsEngineNextGenBase/include/DeviceContextNextGenBase.h
new file mode 100644
index 00000000..f492e527
--- /dev/null
+++ b/Graphics/GraphicsEngineNextGenBase/include/DeviceContextNextGenBase.h
@@ -0,0 +1,87 @@
+/*     Copyright 2015-2018 Egor Yusov
+ *  
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  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 OF ANY PROPRIETARY RIGHTS.
+ *
+ *  In no event and under no legal theory, whether in tort (including negligence), 
+ *  contract, or otherwise, unless required by applicable law (such as deliberate 
+ *  and grossly negligent acts) or agreed to in writing, shall any Contributor be
+ *  liable for any damages, including any direct, indirect, special, incidental, 
+ *  or consequential damages of any character arising as a result of this License or 
+ *  out of the use or inability to use the software (including but not limited to damages 
+ *  for loss of goodwill, work stoppage, computer failure or malfunction, or any and 
+ *  all other commercial damages or losses), even if such Contributor has been advised 
+ *  of the possibility of such damages.
+ */
+
+#pragma once
+
+#include "Atomics.h"
+#include "BasicTypes.h"
+#include "ReferenceCounters.h"
+#include "RefCntAutoPtr.h"
+
+namespace Diligent
+{
+
+/// Base implementation of the device context for next-generation backends.
+
+template<class TBase>
+class DeviceContextNextGenBase : public TBase
+{
+public:
+    DeviceContextNextGenBase(IReferenceCounters* pRefCounters,
+                             IRenderDevice*      pRenderDevice,
+                             Uint32              ContextId,
+                             Uint32              CommandQueueId,
+                             Uint32              NumCommandsToFlush,
+                             bool                bIsDeferred) :
+        TBase(pRefCounters,
+              pRenderDevice,
+              bIsDeferred),
+        m_ContextId                   (ContextId),
+        m_CommandQueueId              (CommandQueueId),
+        m_ContextFrameNumber          (0),
+        m_NumCommandsToFlush          (NumCommandsToFlush),
+        m_SubmittedBuffersCmdQueueMask(bIsDeferred ? 0 : Uint64{1} << Uint64{CommandQueueId})
+    {
+    }
+
+    ~DeviceContextNextGenBase()
+    {
+    }
+
+protected:
+
+    // Should be called at the end of FinishFrame()
+    void EndFrame()
+    {
+        if (m_bIsDeferred)
+        {
+            // For deferred context, reset submitted cmd queue mask
+            m_SubmittedBuffersCmdQueueMask = 0;
+        }
+        Atomics::AtomicIncrement(m_ContextFrameNumber);
+    }
+
+    const Uint32 m_ContextId;
+    const Uint32 m_CommandQueueId;
+    const Uint32 m_NumCommandsToFlush;
+    Atomics::AtomicInt64 m_ContextFrameNumber;
+
+    // This mask indicates which command queues command buffers from this context were submitted to.
+    // For immediate context, this will always be 1 << m_CommandQueueId. 
+    // For deferred contexts, this will accumulate bits of the queues to which command buffers
+    // were submitted to before FinishFrame() was called. This mask is used to release resources
+    // allocated by the context during the frame when FinishFrame() is called.
+    Uint64 m_SubmittedBuffersCmdQueueMask = 0;
+};
+
+}