| 1 | //
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| 2 | // ********************************************************************
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| 3 | // * License and Disclaimer *
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| 4 | // * *
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of *
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and *
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| 7 | // * conditions of the Geant4 Software License, included in the file *
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These *
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| 9 | // * include a list of copyright holders. *
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| 10 | // * *
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| 11 | // * Neither the authors of this software system, nor their employing *
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| 12 | // * institutes,nor the agencies providing financial support for this *
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| 13 | // * work make any representation or warranty, express or implied, *
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| 14 | // * regarding this software system or assume any liability for its *
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| 15 | // * use. Please see the license in the file LICENSE and URL above *
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| 16 | // * for the full disclaimer and the limitation of liability. *
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| 17 | // * *
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| 18 | // * This code implementation is the result of the scientific and *
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| 19 | // * technical work of the GEANT4 collaboration. *
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| 20 | // * By using, copying, modifying or distributing the software (or *
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| 21 | // * any work based on the software) you agree to acknowledge its *
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| 22 | // * use in resulting scientific publications, and indicate your *
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| 23 | // * acceptance of all terms of the Geant4 Software license. *
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| 24 | // ********************************************************************
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| 25 | //
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| 26 | //
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| 27 | // $Id: G4OpenGLBitMapStore.hh,v 1.1 2007/01/09 10:11:16 allison Exp $
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| 28 | // GEANT4 tag $Name: geant4-09-00-ref-01 $
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| 29 | //
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| 30 | //
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| 31 | // John Allison 6th January 2007
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| 32 | //
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| 33 | // Class description
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| 34 | //
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| 35 | // Keeps bit maps on byte boundaries suitable for drawing. For
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| 36 | // example, in OpenGL:
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| 37 | //
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| 38 | // const char* circle = G4OpenGLBitMapStore::GetCircle(size, true);
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| 39 | // glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
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| 40 | // glBitmap(size, size, size/2., size/2., 0., 0., circle);
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| 41 |
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| 42 |
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| 43 | #ifndef G4OPENGLBITMAPSTORE_HH
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| 44 | #define G4OPENGLBITMAPSTORE_HH
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| 45 |
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| 46 | #include "globals.hh"
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| 47 | #include "G4OpenGL.hh"
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| 48 | #include <map>
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| 49 |
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| 50 | namespace G4OpenGLBitMapStore {
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| 51 |
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| 52 | enum Shape {circle, square};
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| 53 |
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| 54 | const GLubyte* GetBitMap(Shape, G4double& size, G4bool filled);
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| 55 | // Size in pixels (gets changed to a rationalised value).
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| 56 |
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| 57 | struct Key{
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| 58 | Key(Shape shape, G4int size, G4bool filled):
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| 59 | fShape(shape), fSize(size), fFilled(filled) {}
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| 60 | bool operator<(const Key& rhs) const {
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| 61 | if (fShape < rhs.fShape) return true;
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| 62 | else if (fSize < rhs.fSize) return true;
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| 63 | else if (fFilled != rhs.fFilled) return true;
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| 64 | else return false;
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| 65 | }
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| 66 | Shape fShape;
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| 67 | G4int fSize;
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| 68 | G4bool fFilled;
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| 69 | };
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| 70 |
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| 71 | extern std::map<Key, GLubyte*> fStore;
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| 72 |
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| 73 | }
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| 74 |
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| 75 | #endif
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