Revert "Remove opengl usage from svx until we can't solve building problems"

This reverts commit 10be411f33c69db83cc5de410eaddf2d297608ae.

include/svx/sdr/contact/viewobjectcontactofopenglobj.hxx

@@ -11,6 +11,7 @@
 #define INCLUDED_SVX_SDR_CONTACT_VIEWOBJECTCONTACTOFOPENGL_HXX
 
 #include <svx/sdr/contact/viewobjectcontactofsdrobj.hxx>
+#include <vcl/OpenGLContext.hxx>
 
 class Window;
 
@@ -25,6 +26,9 @@ public:
 
 protected:
     Window* getWindow() const;
+
+private:
+    OpenGLContext m_aOpenGLContext;
 };
 
 } // namespace sdr

svx/Library_svxcore.mk

@@ -75,6 +75,7 @@ $(eval $(call gb_Library_use_libraries,svxcore,\
     utl \
     vcl \
     xo \
+    $(if $(filter FREEBSD LINUX MACOSX WNT,$(OS)),vclopengl) \
 	$(gb_UWINAPI) \
 ))
 
@@ -82,6 +83,8 @@ $(eval $(call gb_Library_use_externals,svxcore,\
 	boost_headers \
 	icuuc \
 	icu_headers \
+	mesa_headers \
+	glew \
 ))
 
 $(eval $(call gb_Library_add_exception_objects,svxcore,\

svx/source/sdr/contact/viewobjectcontactofopenglobj.cxx

@@ -18,6 +18,9 @@ ViewObjectContactOfOpenGLObj::ViewObjectContactOfOpenGLObj(
     ObjectContact& rObjectContact, ViewContact& rViewContact )
     : ViewObjectContactOfSdrObj( rObjectContact, rViewContact )
 {
+    m_aOpenGLContext.init(getWindow());
+    // Set a dummy size to make the window visible
+    m_aOpenGLContext.setWinSize(Size(200,200));
 }
 
 ViewObjectContactOfOpenGLObj::~ViewObjectContactOfOpenGLObj()