1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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7 | // * conditions of the Geant4 Software License, included in the file * |
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8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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9 | // * include a list of copyright holders. * |
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10 | // * * |
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11 | // * Neither the authors of this software system, nor their employing * |
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12 | // * institutes,nor the agencies providing financial support for this * |
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13 | // * work make any representation or warranty, express or implied, * |
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14 | // * regarding this software system or assume any liability for its * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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16 | // * for the full disclaimer and the limitation of liability. * |
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17 | // * * |
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18 | // * This code implementation is the result of the scientific and * |
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19 | // * technical work of the GEANT4 collaboration. * |
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20 | // * By using, copying, modifying or distributing the software (or * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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22 | // * use in resulting scientific publications, and indicate your * |
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23 | // * acceptance of all terms of the Geant4 Software license. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // |
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27 | // $Id: G4OpenGLStoredXmViewer.cc,v 1.22 2007/04/04 16:50:27 allison Exp $ |
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28 | // GEANT4 tag $Name: $ |
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29 | // |
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30 | // |
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31 | // Andrew Walkden 10th February 1997 |
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32 | // Class G4OpenGLStoredXmViewer : a class derived from G4OpenGLXmViewer |
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33 | // and G4OpenGLStoredViewer. |
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34 | |
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35 | #ifdef G4VIS_BUILD_OPENGLXM_DRIVER |
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36 | |
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37 | #include "G4OpenGLStoredXmViewer.hh" |
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38 | |
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39 | #include "G4ios.hh" |
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40 | |
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41 | G4OpenGLStoredXmViewer:: |
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42 | G4OpenGLStoredXmViewer (G4OpenGLStoredSceneHandler& sceneHandler, |
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43 | const G4String& name) |
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44 | : G4VViewer (sceneHandler, sceneHandler.IncrementViewCount (), name), |
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45 | G4OpenGLViewer (sceneHandler), |
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46 | G4OpenGLXmViewer (sceneHandler), |
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47 | G4OpenGLStoredViewer (sceneHandler) |
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48 | { |
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49 | |
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50 | if (fViewId < 0) return; // In case error in base class instantiation. |
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51 | |
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52 | if (!vi_stored) { |
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53 | fViewId = -1; // This flags an error. |
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54 | G4cerr << "G4OpenGLStoredXmViewer::G4OpenGLStoredXmViewer -" |
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55 | " G4OpenGLXmViewer couldn't get a visual." << G4endl; |
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56 | return; |
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57 | } |
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58 | } |
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59 | |
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60 | G4OpenGLStoredXmViewer::~G4OpenGLStoredXmViewer () {} |
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61 | |
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62 | void G4OpenGLStoredXmViewer::Initialise () { |
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63 | |
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64 | CreateGLXContext (vi_stored); |
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65 | CreateMainWindow (); |
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66 | CreateFontLists (); |
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67 | |
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68 | InitializeGLView (); |
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69 | |
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70 | // clear the buffers and window. |
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71 | ClearView (); |
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72 | FinishView (); |
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73 | |
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74 | glDepthFunc (GL_LEQUAL); |
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75 | glDepthMask (GL_TRUE); |
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76 | |
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77 | glEnable (GL_BLEND); |
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78 | glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); |
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79 | |
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80 | glDrawBuffer (GL_BACK); |
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81 | } |
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82 | |
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83 | void G4OpenGLStoredXmViewer::DrawView () { |
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84 | |
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85 | //Make sure current viewer is attached and clean... |
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86 | glXMakeCurrent (dpy, win, cx); |
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87 | glViewport (0, 0, WinSize_x, WinSize_y); |
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88 | |
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89 | G4ViewParameters::DrawingStyle style = GetViewParameters().GetDrawingStyle(); |
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90 | |
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91 | //See if things have changed from last time and remake if necessary... |
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92 | // /vis/viewer/rebuild, but if not, make decision and set flag only |
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93 | // if necessary... |
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94 | if (!fNeedKernelVisit) KernelVisitDecision (); |
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95 | G4bool kernelVisitWasNeeded = fNeedKernelVisit; // Keep (ProcessView resets). |
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96 | ProcessView (); |
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97 | |
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98 | if(style!=G4ViewParameters::hlr && |
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99 | haloing_enabled) { |
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100 | |
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101 | HaloingFirstPass (); |
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102 | DrawDisplayLists (); |
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103 | glFlush (); |
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104 | |
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105 | HaloingSecondPass (); |
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106 | |
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107 | DrawDisplayLists (); |
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108 | FinishView (); |
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109 | |
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110 | } else { |
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111 | |
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112 | // If kernel visit was needed, drawing and FinishView will already |
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113 | // have been done, so... |
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114 | if (!kernelVisitWasNeeded) { |
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115 | DrawDisplayLists (); |
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116 | FinishView (); |
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117 | } else { |
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118 | // However, union cutaways are implemented in DrawDisplayLists, so make |
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119 | // an extra pass... |
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120 | if (fVP.IsCutaway() && |
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121 | fVP.GetCutawayMode() == G4ViewParameters::cutawayUnion) { |
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122 | ClearView(); |
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123 | DrawDisplayLists (); |
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124 | FinishView (); |
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125 | } |
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126 | } |
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127 | } |
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128 | } |
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129 | |
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130 | void G4OpenGLStoredXmViewer::FinishView () { |
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131 | glXWaitGL (); //Wait for effects of all previous OpenGL commands to |
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132 | //be propogated before progressing. |
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133 | GLint renderMode; |
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134 | glGetIntegerv(GL_RENDER_MODE, &renderMode); |
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135 | if (renderMode == GL_RENDER) glXSwapBuffers (dpy, win); |
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136 | } |
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137 | |
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138 | #endif |
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