Only initialise AMD extensions when replaying on AMD

* The driver module may be loaded but that doesn't mean we should try to
  initialise the extensions.

renderdoc/driver/d3d12/d3d12_device.cpp

@@ -3542,7 +3542,7 @@ void QueueReadbackData::Resize(uint64_t size)
 
 void WrappedID3D12Device::CreateInternalResources()
 {
-  if(IsReplayMode(m_State))
+  if(IsReplayMode(m_State) && m_DriverInfo.vendor == GPUVendor::AMD)
   {
     // Initialise AMD extension, if possible
     HMODULE mod = GetModuleHandleA("amdxc64.dll");

renderdoc/driver/d3d12/d3d12_device.h

@@ -712,6 +712,8 @@ private:
 
   bool m_UsedDXIL = false;
 
+  DriverInformation m_DriverInfo = {};
+
   D3D12InitParams m_InitParams;
   uint64_t m_SectionVersion;
   ReplayOptions m_ReplayOptions;
@@ -857,6 +859,7 @@ public:
   }
   const std::map<ResourceId, DXGI_FORMAT> &GetBackbufferFormats() { return m_BackbufferFormat; }
   void SetLogFile(const char *logfile);
+  void SetDriverInfo(const DriverInformation &info) { m_DriverInfo = info; }
   void SetInitParams(const D3D12InitParams &params, uint64_t sectionVersion,
                      const ReplayOptions &opts, INVAPID3DDevice *nvapi, IAGSD3DDevice *ags)
   {

renderdoc/driver/d3d12/d3d12_replay.cpp

@@ -114,6 +114,8 @@ void D3D12Replay::Initialise(IDXGIFactory1 *factory)
       SAFE_RELEASE(pDXGIAdapter);
     }
   }
+
+  m_pDevice->SetDriverInfo(m_DriverInfo);
 }
 
 RDResult D3D12Replay::FatalErrorCheck()