| Geant4 Cross Reference |
1 //
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24 // ********************************************************************
25 //
26 //
27 //
28 //
29 // Andrew Walkden 10th February 1997
30 // Class G4OpenGLStoredXmViewer : a class derived from G4OpenGLXmViewer
31 // and G4OpenGLStoredViewer.
32
33 #include "G4OpenGLStoredXmViewer.hh"
34
35 #include "G4OpenGLStoredSceneHandler.hh"
36 #include "G4ios.hh"
37 #include "G4Threading.hh"
38
39 G4OpenGLStoredXmViewer::
40 G4OpenGLStoredXmViewer (G4OpenGLStoredSceneHandler& sceneHandler,
41 const G4String& name)
42 : G4VViewer (sceneHandler, sceneHandler.IncrementViewCount (), name),
43 G4OpenGLViewer (sceneHandler),
44 G4OpenGLXmViewer (sceneHandler),
45 G4OpenGLStoredViewer (sceneHandler)
46 {
47
48 if (fViewId < 0) return; // In case error in base class instantiation.
49
50 if (!vi_stored) {
51 fViewId = -1; // This flags an error.
52 G4cerr << "G4OpenGLStoredXmViewer::G4OpenGLStoredXmViewer -"
53 " G4OpenGLXmViewer couldn't get a visual." << G4endl;
54 return;
55 }
56 }
57
58 G4OpenGLStoredXmViewer::~G4OpenGLStoredXmViewer ()
59 {}
60
61 void G4OpenGLStoredXmViewer::Initialise () {
62
63 CreateGLXContext (vi_stored);
64 CreateMainWindow ();
65 CreateFontLists ();
66
67 InitializeGLView ();
68
69 glDrawBuffer (GL_BACK);
70 }
71
72 void G4OpenGLStoredXmViewer::DrawView () {
73 #ifdef G4DEBUG_VIS_OGL
74 printf("G4OpenGLStoredXmViewer::DrawView \n");
75 #endif
76
77 G4ViewParameters::DrawingStyle style = GetViewParameters().GetDrawingStyle();
78
79 //See if things have changed from last time and remake if necessary...
80 // /vis/viewer/rebuild, but if not, make decision and set flag only
81 // if necessary...
82 if (!fNeedKernelVisit) KernelVisitDecision ();
83 fLastVP = fVP;
84 G4bool kernelVisitWasNeeded = fNeedKernelVisit; // Keep (ProcessView resets).
85 ProcessView ();
86
87 if(style!=G4ViewParameters::hlr &&
88 haloing_enabled) {
89
90 HaloingFirstPass ();
91 DrawDisplayLists ();
92 #ifdef G4DEBUG_VIS_OGL
93 printf("G4OpenGLStoredXmViewer::DrawView () flush\n");
94 #endif
95 glFlush ();
96
97 HaloingSecondPass ();
98
99 DrawDisplayLists ();
100 FinishView ();
101
102 } else {
103
104 #ifdef G4DEBUG_VIS_OGL
105 printf("G4OpenGLStoredXmViewer::DrawView not hlr \n");
106 #endif
107 // If kernel visit was needed, drawing and FinishView will already
108 // have been done, so...
109 if (!kernelVisitWasNeeded) {
110 #ifdef G4DEBUG_VIS_OGL
111 printf("G4OpenGLStoredXmViewer::ComputeView Don't need kernel Visit \n");
112 #endif
113 DrawDisplayLists ();
114 FinishView ();
115 } else {
116 #ifdef G4DEBUG_VIS_OGL
117 printf("G4OpenGLStoredXmViewer::ComputeView Need kernel Visit \n");
118 #endif
119 // However, union cutaways are implemented in DrawDisplayLists, so make
120 // an extra pass...
121 if (fVP.IsCutaway() &&
122 fVP.GetCutawayMode() == G4ViewParameters::cutawayUnion) {
123 ClearView();
124 DrawDisplayLists ();
125 FinishView ();
126 } else { // ADD TO AVOID KernelVisit=1 and nothing to display
127 DrawDisplayLists ();
128 FinishView ();
129 }
130 }
131 }
132 #ifdef G4DEBUG_VIS_OGL
133 printf("G4OpenGLStoredXmViewer::DrawView ^^^^^^^^^^^^^^^^^^^^^^^^^^^\n");
134 #endif
135 }
136
137 void G4OpenGLStoredXmViewer::FinishView () {
138 // glXWaitGL (); //Wait for effects of all previous OpenGL commands to
139 //be propogated before progressing.
140 // JA: Commented out July 2021 - slows rendering down in some cases and I
141 // don't see any adverse effects.
142
143 #ifdef G4DEBUG_VIS_OGL
144 printf("G4OpenGLStoredXmViewer::FinishView () flush \n");
145 #endif
146 glFlush (); //FIXME
147
148 GLint renderMode;
149 glGetIntegerv(GL_RENDER_MODE, &renderMode);
150 if (renderMode == GL_RENDER) glXSwapBuffers (dpy, win);
151 }
152