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: G4OpenGLXViewer.cc,v 1.50 2009/03/05 11:04:20 lgarnier 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 7th February 1997 |
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32 | // G4OpenGLXViewer : Class to provide XWindows specific |
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33 | // functionality for OpenGL in GEANT4 |
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34 | |
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35 | #ifdef G4VIS_BUILD_OPENGLX_DRIVER |
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36 | |
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37 | #include "G4OpenGLXViewer.hh" |
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38 | #include "G4VViewer.hh" |
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39 | #include "G4OpenGLSceneHandler.hh" |
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40 | #include <GL/glu.h> |
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41 | |
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42 | #include "G4OpenGLFontBaseStore.hh" |
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43 | |
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44 | #include <sstream> |
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45 | |
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46 | #include "G4VisExtent.hh" |
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47 | #include "G4LogicalVolume.hh" |
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48 | #include "G4VSolid.hh" |
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49 | #include "G4Point3D.hh" |
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50 | #include "G4Normal3D.hh" |
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51 | |
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52 | #include <X11/Xatom.h> |
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53 | #include <X11/Xutil.h> |
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54 | #include <X11/Xmu/StdCmap.h> |
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55 | |
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56 | #include <assert.h> |
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57 | |
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58 | int G4OpenGLXViewer::snglBuf_RGBA[12] = |
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59 | { GLX_RGBA, |
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60 | GLX_RED_SIZE, 1, |
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61 | GLX_GREEN_SIZE, 1, |
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62 | GLX_BLUE_SIZE, 1, |
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63 | GLX_DEPTH_SIZE, 1, |
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64 | GLX_STENCIL_SIZE, 1, |
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65 | None }; |
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66 | |
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67 | int G4OpenGLXViewer::dblBuf_RGBA[13] = |
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68 | { GLX_RGBA, |
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69 | GLX_RED_SIZE, 1, |
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70 | GLX_GREEN_SIZE, 1, |
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71 | GLX_BLUE_SIZE, 1, |
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72 | GLX_DOUBLEBUFFER, |
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73 | GLX_DEPTH_SIZE, 1, |
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74 | GLX_STENCIL_SIZE, 1, |
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75 | None }; |
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76 | |
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77 | #define NewString(str) \ |
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78 | ((str) != NULL ? (strcpy((char*)malloc((unsigned)strlen(str) + 1), str)) : (char*)NULL) |
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79 | |
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80 | #define USE_DEFAULT_COLORMAP 1 |
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81 | #define USE_STANDARD_COLORMAP 0 |
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82 | |
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83 | XVisualInfo* G4OpenGLXViewer::vi_single_buffer = 0; |
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84 | XVisualInfo* G4OpenGLXViewer::vi_double_buffer = 0; |
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85 | |
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86 | extern "C" { |
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87 | static Bool G4OpenGLXViewerWaitForNotify (Display*, XEvent* e, char* arg) { |
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88 | return (e->type == MapNotify) && (e->xmap.window == (Window) arg); |
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89 | } |
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90 | } |
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91 | |
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92 | void G4OpenGLXViewer::SetView () { |
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93 | glXMakeCurrent (dpy, win, cx); |
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94 | G4OpenGLViewer::SetView (); |
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95 | } |
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96 | |
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97 | void G4OpenGLXViewer::ShowView () { |
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98 | glXWaitGL (); //Wait for effects of all previous OpenGL commands to |
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99 | //be propagated before progressing. |
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100 | glFlush (); |
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101 | |
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102 | if (fVP.IsPicking()) { |
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103 | G4cout << |
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104 | "Window activated for picking (left-mouse), exit (middle-mouse)." |
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105 | << G4endl; |
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106 | while (true) { |
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107 | if (XPending(dpy)) { |
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108 | XNextEvent(dpy, &event); |
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109 | if (event.type == ButtonPress && event.xbutton.button == 1) { |
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110 | Pick(event.xbutton.x, event.xbutton.y); |
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111 | } |
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112 | else if (event.type == ButtonPress && event.xbutton.button == 2) break; |
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113 | } |
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114 | } |
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115 | } |
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116 | } |
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117 | |
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118 | void G4OpenGLXViewer::GetXConnection () { |
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119 | // get a connection. |
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120 | dpy = XOpenDisplay (0); |
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121 | if (!dpy) { |
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122 | fViewId = -1; // This flags an error. |
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123 | G4cerr << "G4OpenGLViewer::G4OpenGLViewer couldn't open display." << G4endl; |
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124 | return; |
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125 | } |
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126 | |
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127 | // make sure OpenGL is supported and installed properly. |
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128 | if (!glXQueryExtension (dpy, &errorBase, &eventBase)) { |
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129 | fViewId = -1; // This flags an error. |
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130 | G4cerr << "G4OpenGLViewer::G4OpenGLViewer X Server has no GLX extension." |
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131 | << G4endl; |
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132 | return; |
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133 | } |
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134 | |
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135 | } |
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136 | |
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137 | void G4OpenGLXViewer::CreateGLXContext (XVisualInfo* v) { |
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138 | |
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139 | vi = v; |
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140 | // get window's attributes |
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141 | if (!XGetWindowAttributes(dpy, XRootWindow (dpy, vi -> screen), &xwa)) { |
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142 | fViewId = -1; // This flags an error. |
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143 | G4cerr << "G4OpenGLViewer::G4OpenGLViewer couldn't return window attributes" |
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144 | << G4endl; |
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145 | return; |
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146 | } |
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147 | |
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148 | // create a GLX context |
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149 | cx = glXCreateContext (dpy, vi, 0, true); |
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150 | if (!cx) { |
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151 | fViewId = -1; // This flags an error. |
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152 | G4cerr << "G4OpenGLViewer::G4OpenGLViewer couldn't create context." |
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153 | << G4endl; |
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154 | return; |
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155 | } |
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156 | |
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157 | // New stab at getting a colormap |
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158 | |
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159 | Status status; |
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160 | XStandardColormap *standardCmaps = XAllocStandardColormap (); |
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161 | int i, numCmaps; |
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162 | |
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163 | status = XmuLookupStandardColormap (dpy, |
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164 | vi -> screen, |
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165 | vi -> visualid, |
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166 | vi -> depth, |
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167 | XA_RGB_DEFAULT_MAP, |
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168 | False, |
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169 | True); |
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170 | |
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171 | if (status == 1) { |
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172 | cmap = 0; |
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173 | status = XGetRGBColormaps (dpy, |
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174 | XRootWindow (dpy, vi -> screen), |
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175 | &standardCmaps, |
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176 | &numCmaps, |
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177 | XA_RGB_DEFAULT_MAP); |
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178 | if (status == 1) |
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179 | for (i = 0; i < numCmaps; i++) { |
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180 | if (standardCmaps[i].visualid == vi -> visualid) { |
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181 | cmap = standardCmaps[i].colormap; |
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182 | XFree (standardCmaps); |
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183 | break; |
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184 | } |
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185 | } |
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186 | if (!cmap) { |
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187 | fViewId = -1; // This flags an error. |
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188 | G4cerr << |
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189 | "G4OpenGLViewer::G4OpenGLViewer failed to allocate a standard colormap." |
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190 | << G4endl; |
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191 | return; |
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192 | } |
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193 | G4cout << "Got standard cmap" << G4endl; |
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194 | } else { |
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195 | cmap = XCreateColormap (dpy, |
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196 | XRootWindow(dpy, vi -> screen), |
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197 | vi -> visual, |
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198 | AllocNone); |
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199 | G4cout << "Created own cmap" << G4endl; |
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200 | } |
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201 | |
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202 | if (!cmap) { |
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203 | fViewId = -1; // This flags an error. |
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204 | G4cerr << "G4OpenGLViewer::G4OpenGLViewer failed to allocate a Colormap." |
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205 | << G4endl; |
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206 | return; |
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207 | } |
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208 | |
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209 | } |
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210 | |
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211 | void G4OpenGLXViewer::CreateMainWindow () { |
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212 | |
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213 | // create a window |
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214 | swa.colormap = cmap; |
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215 | swa.border_pixel = 0; |
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216 | swa.event_mask = ExposureMask | ButtonPressMask | StructureNotifyMask; |
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217 | swa.backing_store = WhenMapped; |
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218 | |
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219 | // Window size and position... |
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220 | size_hints = XAllocSizeHints(); |
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221 | |
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222 | fWinSize_x = fVP.GetWindowSizeHintX(); |
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223 | fWinSize_y = fVP.GetWindowSizeHintY(); |
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224 | G4int x_origin = fVP.GetWindowAbsoluteLocationHintX(DisplayWidth(dpy, vi -> screen)); |
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225 | |
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226 | // FIXME, screen size != window size on MAC, but I don't know have to get the menuBar |
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227 | // size on MAC. L.Garnier 01/2009 |
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228 | G4int y_origin = fVP.GetWindowAbsoluteLocationHintY(DisplayHeight(dpy, vi -> screen)); |
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229 | |
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230 | size_hints->base_width = fWinSize_x; |
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231 | size_hints->base_height = fWinSize_y; |
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232 | size_hints->x = x_origin; |
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233 | size_hints->y = y_origin; |
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234 | if (fVP.IsWindowSizeHintX () && fVP.IsWindowLocationHintX () && fVP.IsWindowLocationHintY ()) { |
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235 | size_hints->flags |= PSize | PPosition; |
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236 | } else if (fVP.IsWindowSizeHintX () && !(fVP.IsWindowLocationHintX () || fVP.IsWindowLocationHintY ())) { |
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237 | size_hints->flags |= PSize; |
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238 | } else if ((!fVP.IsWindowSizeHintX ()) && fVP.IsWindowLocationHintX () && fVP.IsWindowLocationHintY ()) { |
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239 | size_hints->flags |= PPosition; |
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240 | } |
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241 | G4cout << "Window name: " << fName << G4endl; |
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242 | strncpy (charViewName, fName, 100); |
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243 | char *window_name = charViewName; |
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244 | char *icon_name = charViewName; |
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245 | //char tmpatom[] = "XA_WM_NORMAL_HINTS"; |
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246 | wm_hints = XAllocWMHints(); |
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247 | class_hints = XAllocClassHint(); |
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248 | |
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249 | XStringListToTextProperty (&window_name, 1, &windowName); |
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250 | XStringListToTextProperty (&icon_name, 1, &iconName); |
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251 | |
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252 | wm_hints -> initial_state = NormalState; |
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253 | wm_hints -> input = True; |
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254 | wm_hints -> icon_pixmap = icon_pixmap; |
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255 | wm_hints -> flags = StateHint | IconPixmapHint | InputHint; |
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256 | |
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257 | class_hints -> res_name = NewString("G4OpenGL"); |
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258 | class_hints -> res_class = NewString("G4OpenGL"); |
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259 | |
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260 | win = XCreateWindow (dpy, XRootWindow (dpy, vi -> screen), x_origin, |
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261 | y_origin, fWinSize_x, fWinSize_y, 0, vi -> depth, |
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262 | InputOutput, vi -> visual, |
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263 | CWBorderPixel | CWColormap | |
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264 | CWEventMask | CWBackingStore, |
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265 | &swa); |
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266 | |
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267 | XSetWMProperties (dpy, win, &windowName, &iconName, 0, 0, |
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268 | size_hints, wm_hints, class_hints); |
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269 | |
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270 | // request X to Draw window on screen. |
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271 | XMapWindow (dpy, win); |
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272 | |
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273 | // Wait for window to appear (wait for an "expose" event). |
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274 | XIfEvent (dpy, &event, G4OpenGLXViewerWaitForNotify, (char*) win); |
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275 | |
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276 | // connect the context to a window |
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277 | Bool success = glXMakeCurrent (dpy, win, cx); |
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278 | if (!success) { |
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279 | fViewId = -1; // This flags an error. |
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280 | G4cerr << "G4OpenGLViewer::G4OpenGLViewer failed to attach a GLX context." |
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281 | << G4endl; |
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282 | GLint error = GL_NO_ERROR; |
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283 | while ((error = glGetError()) != GL_NO_ERROR) { |
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284 | G4cout << "GL Error: " << gluErrorString(error) << G4endl; |
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285 | } |
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286 | return; |
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287 | } |
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288 | |
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289 | } |
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290 | |
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291 | void G4OpenGLXViewer::CreateFontLists () { |
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292 | |
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293 | std::map<G4double,G4String> fonts; // G4VMarker screen size and font name. |
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294 | fonts[10.] = "-adobe-courier-bold-r-normal--10-100-75-75-m-60-iso8859-1"; |
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295 | fonts[11.] = "-adobe-courier-bold-r-normal--11-80-100-100-m-60-iso8859-1"; |
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296 | fonts[12.] = "-adobe-courier-bold-r-normal--12-120-75-75-m-70-iso8859-1"; |
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297 | fonts[13.] = "fixed"; |
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298 | fonts[14.] = "-adobe-courier-bold-r-normal--14-100-100-100-m-90-iso8859-1"; |
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299 | fonts[17.] = "-adobe-courier-bold-r-normal--17-120-100-100-m-100-iso8859-1"; |
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300 | fonts[18.] = "-adobe-courier-bold-r-normal--18-180-75-75-m-110-iso8859-1"; |
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301 | fonts[20.] = "-adobe-courier-bold-r-normal--20-140-100-100-m-110-iso8859-1"; |
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302 | fonts[24.] = "-adobe-courier-bold-r-normal--24-240-75-75-m-150-iso8859-1"; |
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303 | fonts[25.] = "-adobe-courier-bold-r-normal--25-180-100-100-m-150-iso8859-1"; |
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304 | fonts[34.] = "-adobe-courier-bold-r-normal--34-240-100-100-m-200-iso8859-1"; |
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305 | std::map<G4double,G4String>::const_iterator i; |
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306 | for (i = fonts.begin(); i != fonts.end(); ++i) { |
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307 | XFontStruct* font_info = XLoadQueryFont(dpy, i->second); |
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308 | if (!font_info) { |
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309 | G4cerr << |
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310 | "G4OpenGLXViewer: XLoadQueryFont failed for font\n " |
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311 | << i->second |
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312 | << G4endl; |
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313 | continue; |
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314 | } |
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315 | G4int font_base = glGenLists(256); |
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316 | if (!font_base) { |
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317 | G4cerr << "G4OpenGLXViewer: out of display lists for fonts." |
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318 | << G4endl; |
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319 | continue; |
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320 | } |
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321 | G4int first = font_info->min_char_or_byte2; |
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322 | G4int last = font_info->max_char_or_byte2; |
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323 | glXUseXFont(font_info->fid, first, last-first+1,font_base+first); |
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324 | G4OpenGLFontBaseStore::AddFontBase(this,font_base,i->first,i->second); |
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325 | } |
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326 | } |
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327 | |
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328 | G4OpenGLXViewer::G4OpenGLXViewer (G4OpenGLSceneHandler& scene): |
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329 | G4VViewer (scene, -1), |
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330 | G4OpenGLViewer (scene), |
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331 | vi_immediate (0), |
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332 | vi_stored (0), |
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333 | vi (0), |
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334 | cmap (0) |
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335 | { |
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336 | GetXConnection (); |
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337 | if (fViewId < 0) return; |
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338 | |
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339 | // Try for a visual suitable for OpenGLImmediate.. |
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340 | // first try for a single buffered RGB window |
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341 | if (!vi_single_buffer) { |
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342 | vi_single_buffer = |
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343 | glXChooseVisual (dpy, XDefaultScreen (dpy), snglBuf_RGBA); |
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344 | } |
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345 | if (!vi_double_buffer) { |
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346 | vi_double_buffer = |
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347 | glXChooseVisual (dpy, XDefaultScreen (dpy), dblBuf_RGBA); |
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348 | } |
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349 | |
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350 | if (vi_single_buffer || vi_double_buffer) { |
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351 | if (!vi_double_buffer) { |
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352 | G4cout << |
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353 | "G4OpenGLXViewer::G4OpenGLXViewer: unable to get a double buffer visual." |
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354 | "\n Working with a single buffer." |
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355 | << G4endl; |
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356 | } |
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357 | } else { |
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358 | if (!vi_single_buffer) { |
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359 | G4cout << |
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360 | "G4OpenGLXViewer::G4OpenGLXViewer: unable to get a single buffer visual." |
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361 | << G4endl; |
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362 | } |
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363 | if (!vi_double_buffer) { |
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364 | G4cout << |
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365 | "G4OpenGLXViewer::G4OpenGLXViewer: unable to get a double buffer visual." |
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366 | << G4endl; |
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367 | } |
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368 | } |
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369 | |
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370 | if (vi_single_buffer) { |
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371 | vi_immediate = vi_single_buffer; |
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372 | attributeList = snglBuf_RGBA; |
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373 | } |
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374 | |
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375 | if (!vi_immediate){ |
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376 | // next try for a double buffered RGB, but Draw to top buffer |
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377 | if (vi_double_buffer) { |
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378 | vi_immediate = vi_double_buffer; |
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379 | attributeList = dblBuf_RGBA; |
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380 | } |
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381 | } |
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382 | |
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383 | // Now try for a visual suitable for OpenGLStored... |
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384 | // Try for a double buffered RGB window |
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385 | if (vi_double_buffer) { |
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386 | vi_stored = vi_double_buffer; |
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387 | attributeList = dblBuf_RGBA; |
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388 | } |
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389 | |
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390 | if (!vi_immediate || !vi_stored) { |
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391 | G4cout << |
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392 | "G4OpenGLXViewer::G4OpenGLXViewer: unable to get required visuals." |
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393 | << G4endl; |
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394 | fViewId = -1; // This flags an error. |
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395 | } |
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396 | |
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397 | // glClearColor (0., 0., 0., 0.); |
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398 | // glClearDepth (1.); |
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399 | } |
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400 | |
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401 | G4OpenGLXViewer::~G4OpenGLXViewer () { |
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402 | if (fViewId >= 0) { |
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403 | //Close a window from here |
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404 | glXMakeCurrent (dpy, None, NULL); |
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405 | glXDestroyContext (dpy, cx); |
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406 | if (win) XDestroyWindow (dpy, win); // ...if already deleted in |
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407 | // sub-class G4OpenGLXmViewer. |
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408 | XFlush (dpy); |
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409 | } |
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410 | } |
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411 | |
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412 | void G4OpenGLXViewer::print() { |
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413 | |
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414 | //using namespace std; |
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415 | //cout << "print_col_callback requested with file name: " << fPrintFilename << G4endl; |
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416 | |
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417 | if (fVectoredPs) { |
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418 | |
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419 | printGl2PS(fWinSize_x, fWinSize_y); |
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420 | // printVectoredEPS(); |
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421 | |
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422 | } else { |
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423 | |
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424 | XVisualInfo* pvi; |
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425 | GLXContext pcx = create_GL_print_context(pvi); |
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426 | |
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427 | if (!pcx) { |
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428 | G4cout << "Unable to create print context." << G4endl; |
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429 | return; |
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430 | } |
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431 | |
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432 | GLXContext tmp_cx; |
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433 | tmp_cx = cx; |
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434 | cx=pcx; |
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435 | |
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436 | Pixmap pmap = XCreatePixmap (dpy, |
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437 | XRootWindow (dpy, pvi->screen), |
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438 | fWinSize_x, fWinSize_y, |
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439 | pvi->depth); |
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440 | |
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441 | GLXPixmap glxpmap = glXCreateGLXPixmap (dpy, |
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442 | pvi, |
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443 | pmap); |
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444 | |
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445 | GLXDrawable tmp_win; |
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446 | tmp_win=win; |
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447 | win=glxpmap; |
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448 | |
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449 | glXMakeCurrent (dpy, |
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450 | win, |
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451 | cx); |
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452 | |
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453 | ClearView (); |
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454 | SetView (); |
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455 | DrawView (); |
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456 | |
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457 | printNonVectoredEPS (fPrintColour, |
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458 | fWinSize_x, fWinSize_y); |
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459 | |
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460 | win=tmp_win; |
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461 | cx=tmp_cx; |
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462 | |
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463 | glXMakeCurrent (dpy, |
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464 | win, |
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465 | cx); |
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466 | |
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467 | } |
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468 | |
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469 | } |
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470 | |
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471 | |
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472 | GLXContext G4OpenGLXViewer::create_GL_print_context(XVisualInfo*& pvi) { |
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473 | |
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474 | pvi = glXChooseVisual (dpy, |
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475 | XDefaultScreen (dpy), |
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476 | snglBuf_RGBA); |
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477 | |
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478 | if (!pvi) { |
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479 | pvi = glXChooseVisual (dpy, |
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480 | XDefaultScreen (dpy), |
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481 | dblBuf_RGBA); |
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482 | } |
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483 | |
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484 | return glXCreateContext (dpy, |
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485 | pvi, |
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486 | NULL, |
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487 | False); |
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488 | } |
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489 | |
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490 | #endif |
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