| Geant4 Cross Reference |
1 //
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25 //
26 //
27 //
28 //
29 // Andrew Walkden 10th February 1997
30 // Class G4OpenGLImmediateXmViewer : a class derived from G4OpenGLXmViewer
31 // and G4OpenGLImmediateViewer.
32
33 #include "G4OpenGLImmediateXmViewer.hh"
34 #include "G4OpenGLImmediateSceneHandler.hh"
35
36 #include "G4ios.hh"
37 #include "G4Threading.hh"
38
39 G4OpenGLImmediateXmViewer::
40 G4OpenGLImmediateXmViewer(G4OpenGLImmediateSceneHandler& sceneHandler,
41 const G4String& name)
42 : G4VViewer (sceneHandler, sceneHandler.IncrementViewCount (), name),
43 G4OpenGLViewer (sceneHandler),
44 G4OpenGLXmViewer (sceneHandler),
45 G4OpenGLImmediateViewer (sceneHandler)
46 {
47 if (fViewId < 0) return; // In case error in base class instantiation.
48
49 // ensure a suitable window was found
50 if (!vi_immediate) {
51 G4cerr << "G4OpenGLImmediateXmViewer::G4OpenGLImmediateXmViewer -"
52 " G4OpenGLXmViewer couldn't get a visual." << G4endl;
53 fViewId = -1; // This flags an error.
54 return;
55 }
56 }
57
58 G4OpenGLImmediateXmViewer::~G4OpenGLImmediateXmViewer () {}
59
60 void G4OpenGLImmediateXmViewer::Initialise () {
61
62 CreateGLXContext (vi_immediate);
63 CreateMainWindow ();
64 CreateFontLists ();
65
66 InitializeGLView ();
67
68 // If a double buffer context has been forced upon us, ignore the
69 // back buffer for this OpenGLImmediate view.
70 glDrawBuffer (GL_FRONT);
71 }
72
73 void G4OpenGLImmediateXmViewer::DrawView () {
74
75 G4ViewParameters::DrawingStyle style = GetViewParameters().GetDrawingStyle();
76
77 #ifdef G4DEBUG_VIS_OGL
78 printf("G4OpenGLImmediateXmViewer::DrawView : \n");
79 #endif
80
81 if(style!=G4ViewParameters::hlr &&
82 haloing_enabled) {
83
84 HaloingFirstPass ();
85 NeedKernelVisit ();
86 #ifdef G4DEBUG_VIS_OGL
87 printf("G4OpenGLImmediateXmViewer::DrawView : change param\n");
88 #endif
89 ProcessView ();
90 glFlush ();
91
92 HaloingSecondPass ();
93
94 }
95
96 #ifdef G4DEBUG_VIS_OGL
97 printf("G4OpenGLImmediateXmViewer::DrawView : need Kernel/Process/Finish\n");
98 #endif
99 NeedKernelVisit (); // Always need to visit G4 kernel.
100 ProcessView ();
101 FinishView ();
102
103 }
104
105 void G4OpenGLImmediateXmViewer::FinishView () {
106 #ifdef G4DEBUG_VIS_OGL
107 printf("G4OpenGLImmediateXmViewer::FinishView : \n");
108 #endif
109 // glXWaitGL (); //Wait for effects of all previous OpenGL commands to
110 //be propagated before progressing.
111 // JA: Commented out July 2021 - slows rendering down in some cases and I
112 // don't see any adverse effects.
113 glFlush ();
114 }
115