http://code.google.com/p/rpcs3/source/detail?r=44

wxWidgets/include/wx/dcmemory.h

@@ -0,0 +1,76 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/dcmemory.h
+// Purpose:     wxMemoryDC base header
+// Author:      Julian Smart
+// Modified by:
+// Created:
+// Copyright:   (c) Julian Smart
+// RCS-ID:      $Id: dcmemory.h 43843 2006-12-07 05:44:44Z PC $
+// Licence:     wxWindows Licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_DCMEMORY_H_BASE_
+#define _WX_DCMEMORY_H_BASE_
+
+#include "wx/bitmap.h"
+
+// NOTE: different native implementations of wxMemoryDC will derive from
+//       different wxDC classes (wxPaintDC, wxWindowDC, etc), so that
+//       we cannot derive wxMemoryDCBase from wxDC and then use it as the
+//       only base class for native impl of wxMemoryDC...
+class WXDLLEXPORT wxMemoryDCBase
+{
+public:
+    wxMemoryDCBase() { }
+
+    // avoid warnings about having virtual functions but non virtual dtor
+    virtual ~wxMemoryDCBase() { }
+
+    // select the given bitmap to draw on it
+    void SelectObject(wxBitmap& bmp)
+    {
+        // make sure that the given wxBitmap is not sharing its data with other
+        // wxBitmap instances as its contents will be modified by any drawing
+        // operation done on this DC
+        if (bmp.IsOk())
+            bmp.UnShare();
+
+        DoSelect(bmp);
+    }
+
+    // select the given bitmap for read-only
+    virtual void SelectObjectAsSource(const wxBitmap& bmp)
+    {
+        DoSelect(bmp);
+    }
+
+protected:
+    virtual void DoSelect(const wxBitmap& bmp) = 0;
+};
+
+#if defined(__WXPALMOS__)
+#include "wx/palmos/dcmemory.h"
+#elif defined(__WXMSW__)
+#include "wx/msw/dcmemory.h"
+#elif defined(__WXMOTIF__)
+#include "wx/motif/dcmemory.h"
+#elif defined(__WXGTK20__)
+#include "wx/gtk/dcmemory.h"
+#elif defined(__WXGTK__)
+#include "wx/gtk1/dcmemory.h"
+#elif defined(__WXX11__)
+#include "wx/x11/dcmemory.h"
+#elif defined(__WXMGL__)
+#include "wx/mgl/dcmemory.h"
+#elif defined(__WXDFB__)
+#include "wx/dfb/dcmemory.h"
+#elif defined(__WXMAC__)
+#include "wx/mac/dcmemory.h"
+#elif defined(__WXCOCOA__)
+#include "wx/cocoa/dcmemory.h"
+#elif defined(__WXPM__)
+#include "wx/os2/dcmemory.h"
+#endif
+
+#endif
+    // _WX_DCMEMORY_H_BASE_