| Geant4 Cross Reference |
1 //
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24 // ********************************************************************
25 //
26 //
27 //
28 //
29 // Andrew Walkden 7th February 1997
30 // Class G4OpenGLStoredXViewer : a class derived from G4OpenGLXViewer and
31 // G4OpenGLStoredViewer.
32
33 #include "G4OpenGLStoredXViewer.hh"
34
35 #include "G4OpenGLStoredSceneHandler.hh"
36 #include "G4ios.hh"
37 #include "G4Threading.hh"
38
39 G4OpenGLStoredXViewer::
40 G4OpenGLStoredXViewer (G4OpenGLStoredSceneHandler& sceneHandler,
41 const G4String& name)
42 : G4VViewer (sceneHandler, sceneHandler.IncrementViewCount (), name),
43 G4OpenGLViewer (sceneHandler),
44 G4OpenGLXViewer (sceneHandler),
45 G4OpenGLStoredViewer (sceneHandler)
46 {
47 if (fViewId < 0) return; // In case error in base class instantiation.
48
49 if (!vi_stored) {
50 fViewId = -1; // This flags an error.
51 G4cerr << "G4OpenGLStoredXViewer::G4OpenGLStoredXViewer -"
52 " G4OpenGLXViewer couldn't get a visual." << G4endl;
53 return;
54 }
55 }
56
57 G4OpenGLStoredXViewer::~G4OpenGLStoredXViewer () {}
58
59 void G4OpenGLStoredXViewer::Initialise () {
60
61 #ifdef G4DEBUG_VIS_OGL
62 printf("G4OpenGLStoredXViewer::Initialise\n");
63 #endif
64 CreateGLXContext (vi_stored);
65 CreateMainWindow ();
66 CreateFontLists ();
67
68 InitializeGLView ();
69
70 glDrawBuffer (GL_BACK);
71 }
72
73 void G4OpenGLStoredXViewer::DrawView () {
74
75 #ifdef G4DEBUG_VIS_OGL
76 printf("G4OpenGLStoredXViewer::DrawView\n");
77 #endif
78
79 G4ViewParameters::DrawingStyle style = GetViewParameters().GetDrawingStyle();
80
81 // See if things have changed from last time and remake if necessary...
82 // The fNeedKernelVisit flag might have been set by the user in
83 // /vis/viewer/rebuild, but if not, make decision and set flag only
84 // if necessary...
85 if (!fNeedKernelVisit) KernelVisitDecision ();
86 fLastVP = fVP;
87 G4bool kernelVisitWasNeeded = fNeedKernelVisit; // Keep (ProcessView resets).
88 ProcessView ();
89
90 if(style!=G4ViewParameters::hlr && haloing_enabled) {
91
92 HaloingFirstPass ();
93 DrawDisplayLists ();
94 #ifdef G4DEBUG_VIS_OGL
95 printf("G4OpenGLStoredXViewer::DrawView flush \n");
96 #endif
97 glFlush ();
98
99 HaloingSecondPass ();
100
101 DrawDisplayLists ();
102
103 } else {
104
105 if (!kernelVisitWasNeeded) {
106 #ifdef G4DEBUG_VIS_OGL
107 printf("G4OpenGLStoredXViewer::DrawView NO need kernel visit\n");
108 #endif
109 DrawDisplayLists ();
110
111 } else {
112
113 #ifdef G4DEBUG_VIS_OGL
114 printf("G4OpenGLStoredXViewer::DrawView NEED kernel visit\n");
115 #endif
116 // However, union cutaways are implemented in DrawDisplayLists, so make
117 // an extra pass...
118 if (fVP.IsCutaway() &&
119 fVP.GetCutawayMode() == G4ViewParameters::cutawayUnion) {
120 ClearView();
121 DrawDisplayLists ();
122 } else { // ADD TO AVOID KernelVisit=1 and nothing to display
123 DrawDisplayLists ();
124 }
125 }
126 }
127
128 FinishView ();
129
130 }
131
132 void G4OpenGLStoredXViewer::FinishView () {
133 #ifdef G4DEBUG_VIS_OGL
134 printf("G4OpenGLStoredXViewer::FinishView\n");
135 #endif
136
137 // glXWaitGL (); //Wait for effects of all previous OpenGL commands to
138 //be propagated before progressing.
139 // JA: Commented out July 2021 - slows rendering down in some cases and I
140 // don't see any adverse effects.
141
142 #ifdef G4DEBUG_VIS_OGL
143 printf("G4OpenGLStoredXViewer::FinishView flush \n");
144 #endif
145 glFlush (); //FIXME
146
147 GLint renderMode;
148 glGetIntegerv(GL_RENDER_MODE, &renderMode);
149 if (renderMode == GL_RENDER) glXSwapBuffers (dpy, win);
150 }
151