Reset command allocators each frame, after syncing GPU

renderdoc/driver/d3d12/d3d12_device.cpp

@@ -2783,6 +2783,13 @@ void WrappedID3D12Device::ReplayLog(uint32_t startEventID, uint32_t endEventID,
       m_Queues[i]->Signal(m_QueueFences[i], m_GPUSyncCounter);
 
     FlushLists(true);
+
+    // take this opportunity to reset command allocators to ensure we don't steadily leak over time.
+    if(m_DataUploadAlloc)
+      m_DataUploadAlloc->Reset();
+
+    for(ID3D12CommandAllocator *alloc : m_CommandAllocators)
+      alloc->Reset();
   }
 
   if(!partial)

renderdoc/driver/d3d12/d3d12_device.h

@@ -250,6 +250,8 @@ private:
   HANDLE m_GPUSyncHandle;
   UINT64 m_GPUSyncCounter;
 
+  std::vector<ID3D12CommandAllocator *> m_CommandAllocators;
+
   D3D12_CPU_DESCRIPTOR_HANDLE AllocRTV();
   void FreeRTV(D3D12_CPU_DESCRIPTOR_HANDLE handle);
 

renderdoc/driver/d3d12/d3d12_device_wrap.cpp

@@ -159,6 +159,8 @@ bool WrappedID3D12Device::Serialise_CreateCommandAllocator(SerialiserType &ser,
     {
       ret = new WrappedID3D12CommandAllocator(ret, this);
 
+      m_CommandAllocators.push_back(ret);
+
       GetResourceManager()->AddLiveResource(pCommandAllocator, ret);
 
       AddResource(pCommandAllocator, ResourceType::Pool, "Command Queue");