ENH:Added VTK/Rendering/Testing/Cxx/TestGPUInfo.cxx from VTKEdge to VTK.

Rendering/Testing/Cxx/CMakeLists.txt

@@ -23,6 +23,7 @@ IF(VTK_USE_DISPLAY)
     TestDynamic2DLabelMapper.cxx
     TestFBO.cxx
     TestGaussianBlurPass.cxx
+    TestGPUInfo.cxx
     TestGradientBackground.cxx
     TestInteractorTimers.cxx
     TestLabelPlacer.cxx

Rendering/Testing/Cxx/TestGPUInfo.cxx

+/*=========================================================================
+
+  Program:   Visualization Toolkit
+  Module:    TestGPUInfo.cxx
+
+  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
+  All rights reserved.
+  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
+
+     This software is distributed WITHOUT ANY WARRANTY; without even
+     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+     PURPOSE.  See the above copyright notice for more information.
+
+=========================================================================*/
+#include "vtkTestUtilities.h"
+#include "vtkGPUInfoList.h"
+#include "vtkGPUInfo.h"
+
+int TestGPUInfo(int vtkNotUsed(argc), char *vtkNotUsed(argv)[])
+{
+  vtkGPUInfoList *l=vtkGPUInfoList::New();
+  l->Probe();
+  int c=l->GetNumberOfGPUs();
+  
+  cout << "There is " << c << " GPU(s)."<< endl;
+  int i=0;
+  while(i<c)
+    {
+    cout << " GPU " << i << ": " << endl;
+    vtkGPUInfo *info=l->GetGPUInfo(i);
+    vtkIdType value;
+    value=info->GetDedicatedVideoMemory();
+    cout << "  dedicated VRAM=" << value/(1024*1024) << " MB" << endl;
+    value=info->GetDedicatedSystemMemory();
+    cout << "  dedicated RAM=" << value/(1024*1024) << " MB" << endl;
+    value=info->GetSharedSystemMemory();
+    cout << "  shared RAM=" << value/(1024*1024) << " MB" << endl;
+    ++i;
+    }
+  l->Delete();
+  
+  return 0; // 0==never fails.
+}