| Geant4 Cross Reference |
1 //
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25 //
26 //
27 //
28 //
29 // Andrew Walkden 7th February 1997
30 // Class G4OpenGLImmediateXViewer : a class derived from G4OpenGLXViewer and
31 // G4OpenGLImmediateViewer.
32
33 #include "G4OpenGLImmediateXViewer.hh"
34 #include "G4OpenGLImmediateSceneHandler.hh"
35
36 #include "G4ios.hh"
37 #include "G4Threading.hh"
38
39 G4OpenGLImmediateXViewer::
40 G4OpenGLImmediateXViewer (G4OpenGLImmediateSceneHandler& sceneHandler,
41 const G4String& name)
42 : G4VViewer (sceneHandler, sceneHandler.IncrementViewCount (), name),
43 G4OpenGLViewer (sceneHandler),
44 G4OpenGLXViewer (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 << "G4OpenGLImmediateXViewer::G4OpenGLImmediateXViewer -"
52 " G4OpenGLXViewer couldn't get a visual." << G4endl;
53 fViewId = -1; // This flags an error.
54 return;
55 }
56 }
57
58 G4OpenGLImmediateXViewer::~G4OpenGLImmediateXViewer () {}
59
60 void G4OpenGLImmediateXViewer::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 glDepthFunc (GL_LEQUAL);
73 glDepthMask (GL_TRUE);
74 }
75
76 void G4OpenGLImmediateXViewer::DrawView () {
77
78 G4ViewParameters::DrawingStyle style = GetViewParameters().GetDrawingStyle();
79
80 if(style!=G4ViewParameters::hlr &&
81 haloing_enabled) {
82
83 HaloingFirstPass ();
84 NeedKernelVisit ();
85 ProcessView ();
86 glFlush ();
87
88 HaloingSecondPass ();
89
90 }
91
92 NeedKernelVisit (); // Always need to visit G4 kernel.
93 ProcessView ();
94 FinishView ();
95
96 }
97
98 void G4OpenGLImmediateXViewer::FinishView () {
99 // glXWaitGL (); //Wait for effects of all previous OpenGL commands to
100 //be propagated before progressing.
101 // JA: Commented out July 2021 - slows rendering down in some cases and I
102 // don't see any adverse effects.
103 glFlush ();
104 }
105