Import Geant4 8.3.0 source tree

2016-06-09 15:07:44 +02:00
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+//
+// ********************************************************************
+// * License and Disclaimer                                           *
+// *                                                                  *
+// * The  Geant4 software  is  copyright of the Copyright Holders  of *
+// * the Geant4 Collaboration.  It is provided  under  the terms  and *
+// * conditions of the Geant4 Software License,  included in the file *
+// * LICENSE and available at  http://cern.ch/geant4/license .  These *
+// * include a list of copyright holders.                             *
+// *                                                                  *
+// * Neither the authors of this software system, nor their employing *
+// * institutes,nor the agencies providing financial support for this *
+// * work  make  any representation or  warranty, express or implied, *
+// * regarding  this  software system or assume any liability for its *
+// * use.  Please see the license in the file  LICENSE  and URL above *
+// * for the full disclaimer and the limitation of liability.         *
+// *                                                                  *
+// * This  code  implementation is the result of  the  scientific and *
+// * technical work of the GEANT4 collaboration.                      *
+// * By using,  copying,  modifying or  distributing the software (or *
+// * any work based  on the software)  you  agree  to acknowledge its *
+// * use  in  resulting  scientific  publications,  and indicate your *
+// * acceptance of all terms of the Geant4 Software license.          *
+// ********************************************************************
+//
+//
+// $Id: G4OpenGLBitMapStore.hh,v 1.1 2007/01/09 10:11:16 allison Exp $
+// GEANT4 tag $Name: geant4-08-03 $
+//
+// 
+// John Allison  6th January 2007
+//
+// Class description
+//
+// Keeps bit maps on byte boundaries suitable for drawing.  For
+// example, in OpenGL:
+//
+//   const char* circle = G4OpenGLBitMapStore::GetCircle(size, true);
+//   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+//   glBitmap(size, size, size/2., size/2., 0., 0., circle);
+
+
+#ifndef G4OPENGLBITMAPSTORE_HH
+#define G4OPENGLBITMAPSTORE_HH
+
+#include "globals.hh"
+#include "G4OpenGL.hh"
+#include <map>
+
+namespace G4OpenGLBitMapStore {
+
+  enum Shape {circle, square};
+
+  const GLubyte* GetBitMap(Shape, G4double& size, G4bool filled);
+  // Size in pixels (gets changed to a rationalised value).
+
+  struct Key{
+    Key(Shape shape, G4int size, G4bool filled):
+      fShape(shape), fSize(size), fFilled(filled) {}
+    bool operator<(const Key& rhs) const {
+      if (fShape < rhs.fShape) return true;
+      else if (fSize < rhs.fSize) return true;
+      else if (fFilled != rhs.fFilled) return true;
+      else return false;
+    }
+    Shape fShape;
+    G4int fSize;
+    G4bool fFilled;
+  };
+
+  extern std::map<Key, GLubyte*> fStore;
+
+}
+
+#endif