source: trunk/geant4/visualization/OpenGL/src/G4OpenGLStoredXViewer.cc @ 529

Last change on this file since 529 was 529, checked in by garnier, 17 years ago

r658@mac-90108: laurentgarnier | 2007-06-25 12:02:16 +0200
import de visualisation

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26//
27// $Id: G4OpenGLStoredXViewer.cc,v 1.21 2006/09/04 12:07:59 allison Exp $
28// GEANT4 tag $Name: geant4-08-02-patch-01 $
29//
30//
31// Andrew Walkden  7th February 1997
32// Class G4OpenGLStoredXViewer : a class derived from G4OpenGLXViewer and
33//                             G4OpenGLStoredViewer.
34
35#ifdef G4VIS_BUILD_OPENGLX_DRIVER
36
37#include "G4OpenGLStoredXViewer.hh"
38
39#include "G4ios.hh"
40
41G4OpenGLStoredXViewer::
42G4OpenGLStoredXViewer (G4OpenGLStoredSceneHandler& sceneHandler,
43                 const G4String& name)
44 : G4VViewer (sceneHandler, sceneHandler.IncrementViewCount (), name),
45   G4OpenGLViewer (sceneHandler),
46   G4OpenGLXViewer (sceneHandler),
47   G4OpenGLStoredViewer (sceneHandler)
48{
49  if (fViewId < 0) return;  // In case error in base class instantiation.
50
51  if (!vi_stored) {
52    fViewId = -1;  // This flags an error.
53    G4cerr << "G4OpenGLStoredXViewer::G4OpenGLStoredXViewer -"
54      " G4OpenGLXViewer couldn't get a visual." << G4endl;
55    return;
56  }
57}
58
59G4OpenGLStoredXViewer::~G4OpenGLStoredXViewer () {}
60
61void G4OpenGLStoredXViewer::Initialise () {
62
63  CreateGLXContext (vi_stored);
64  CreateMainWindow ();
65  CreateFontLists ();
66
67  InitializeGLView ();
68
69// clear the buffers and window.
70  ClearView ();
71  FinishView ();
72
73  glDepthFunc (GL_LEQUAL);
74  glDepthMask (GL_TRUE);
75}
76
77void G4OpenGLStoredXViewer::DrawView () {
78
79  //Make sure current viewer is attached and clean...
80  glXMakeCurrent (dpy, win, cx);
81  glViewport (0, 0, WinSize_x, WinSize_y);
82
83  G4ViewParameters::DrawingStyle style = GetViewParameters().GetDrawingStyle();
84
85  //See if things have changed from last time and remake if necessary...
86  // The fNeedKernelVisit flag might have been set by the user in
87  // /vis/viewer/rebuild, but if not, make decision and set flag only
88  // if necessary...
89  if (!fNeedKernelVisit) KernelVisitDecision ();
90  G4bool kernelVisitWasNeeded = fNeedKernelVisit; // Keep (ProcessView resets).
91  ProcessView ();
92
93  if(style!=G4ViewParameters::hlr &&
94     haloing_enabled) {
95
96    HaloingFirstPass ();
97    DrawDisplayLists ();
98    glFlush ();
99
100    HaloingSecondPass ();
101
102    DrawDisplayLists ();
103    FinishView ();
104
105  } else {
106
107    // If kernel visit was needed, drawing and FinishView will already
108    // have been done, so...
109    if (!kernelVisitWasNeeded) {
110      DrawDisplayLists ();
111      FinishView ();
112    } else {
113    // However, union cutaways are implemented in DrawDisplayLists, so make
114    // an extra pass...
115      if (fVP.IsCutaway() &&
116          fVP.GetCutawayMode() == G4ViewParameters::cutawayUnion) {
117        ClearView();
118        DrawDisplayLists ();
119        FinishView ();
120      }
121    }
122  }
123}
124
125void G4OpenGLStoredXViewer::FinishView () {
126  glXWaitGL (); //Wait for effects of all previous OpenGL commands to
127                //be propogated before progressing.
128  glXSwapBuffers (dpy, win); 
129}
130
131#endif
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