[idd] ipc: implement reporting of GPU software status

idd/LGCommon/PipeMsg.h

@@ -30,7 +30,8 @@ struct LGPipeMsg
   enum
   {
     SETCURSORPOS,
-    SETDISPLAYMODE
+    SETDISPLAYMODE,
+    GPUSTATUS
   }
   type;
   union
@@ -49,5 +50,11 @@ struct LGPipeMsg
       uint32_t refresh;
     }
     displayMode;
+
+    struct
+    {
+      bool software;
+    }
+    gpuStatus;
   };
 };

idd/LGIdd/CD3D11Device.cpp

@@ -31,6 +31,13 @@ HRESULT CD3D11Device::Init()
   if (FAILED(hr))
     return hr;
 
+  DXGI_ADAPTER_DESC1 desc = {};
+  hr = m_adapter->GetDesc1(&desc);
+  if (FAILED(hr))
+    return hr;
+
+  m_isSoftware = (desc.Flags & DXGI_ADAPTER_FLAG_SOFTWARE) != 0;
+  
   // only 11.1 supports DX12 interoperabillity
   static const D3D_FEATURE_LEVEL featureLevels[] =
   {

idd/LGIdd/CD3D11Device.h

@@ -36,6 +36,7 @@ private:
   ComPtr<IDXGIAdapter1       > m_adapter;
   ComPtr<ID3D11Device5       > m_device;
   ComPtr<ID3D11DeviceContext4> m_context;
+  bool m_isSoftware;
 
 public:
   CD3D11Device(LUID adapterLuid) :
@@ -51,4 +52,6 @@ public:
   ComPtr<ID3D11Device5> GetDevice() { return m_device; }
 
   ComPtr<ID3D11DeviceContext4> GetContext() { return m_context; }
+
+  bool IsSoftware() { return m_isSoftware; }
 };

idd/LGIdd/CIndirectMonitorContext.cpp

@@ -21,6 +21,7 @@
 #include "CIndirectMonitorContext.h"
 #include "CPlatformInfo.h"
 #include "CDebug.h"
+#include "CPipeServer.h"
 
 CIndirectMonitorContext::CIndirectMonitorContext(_In_ IDDCX_MONITOR monitor, CIndirectDeviceContext * device) :
   m_monitor(monitor),
@@ -70,6 +71,7 @@ reInit:
   }
 
   m_swapChain.reset(new CSwapChainProcessor(m_monitor, m_devContext, swapChain, m_dx11Device, m_dx12Device, newFrameEvent));
+  g_pipe.SetGPUStatus(m_dx11Device->IsSoftware());
 }
 
 void CIndirectMonitorContext::UnassignSwapChain()

idd/LGIdd/CPipeServer.cpp

@@ -175,3 +175,15 @@ void CPipeServer::SetDisplayMode(uint32_t width, uint32_t height, uint32_t refre
   msg.displayMode.refresh = refresh;
   WriteMsg(msg);
 }
+
+void CPipeServer::SetGPUStatus(bool software)
+{
+  if (!m_connected)
+    return;
+
+  LGPipeMsg msg;
+  msg.size               = sizeof(msg);
+  msg.type               = LGPipeMsg::GPUSTATUS;
+  msg.gpuStatus.software = software;
+  WriteMsg(msg);
+}

idd/LGIdd/CPipeServer.h

@@ -55,6 +55,7 @@ class CPipeServer
 
     void SetCursorPos(uint32_t x, uint32_t y);
     void SetDisplayMode(uint32_t width, uint32_t height, uint32_t refresh);
+    void SetGPUStatus(bool software);
 };
 
 extern CPipeServer g_pipe;

idd/LGIddHelper/CPipeClient.cpp

@@ -264,6 +264,10 @@ void CPipeClient::Thread()
           HandleSetDisplayMode(msg);
           break;
 
+        case LGPipeMsg::GPUSTATUS:
+          HandleGPUStatus(msg);
+          break;
+
         default:
           DEBUG_ERROR("Unknown message type %d", msg.type);
           break;
@@ -300,3 +304,8 @@ void CPipeClient::HandleSetDisplayMode(const LGPipeMsg& msg)
   if (result != DISP_CHANGE_SUCCESSFUL)
     DEBUG_ERROR("ChangeDisplaySettingsEx Failed (0x%08x)", result);
 }
+
+void CPipeClient::HandleGPUStatus(const LGPipeMsg& msg)
+{
+  // TODO: implement me
+}

idd/LGIddHelper/CPipeClient.h

@@ -49,6 +49,7 @@ private:
   
   void HandleSetCursorPos(const LGPipeMsg& msg);
   void HandleSetDisplayMode(const LGPipeMsg& msg);
+  void HandleGPUStatus(const LGPipeMsg& msg);
 
 public:
   ~CPipeClient() { DeInit(); }