Ticket #10108 (bitmap from wxImage depth regression)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@56488 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/bitmap.cpp

@@ -813,13 +813,15 @@ bool wxBitmap::CreateFromImage(const wxImage& image, int depth, WXHDC hdc)
 
     const bool hasAlpha = image.HasAlpha();
 
+    if (depth == -1)
+      depth = dib.GetDepth();
+      
     // store the bitmap parameters
     wxBitmapRefData * const refData = new wxBitmapRefData;
     refData->m_width = w;
     refData->m_height = h;
     refData->m_hasAlpha = hasAlpha;
-    refData->m_depth = depth == -1 ? (hasAlpha ? 32 : 24)
-                                   : depth;
+    refData->m_depth = depth;
 
     m_refData = refData;