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 1.57 2010/12/11 17:04:07 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 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 | |
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41 | #include "G4OpenGLFontBaseStore.hh" |
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42 | |
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43 | #include <sstream> |
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44 | |
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45 | #include "G4VisExtent.hh" |
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46 | #include "G4LogicalVolume.hh" |
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47 | #include "G4VSolid.hh" |
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48 | #include "G4Point3D.hh" |
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49 | #include "G4Normal3D.hh" |
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50 | #include "G4StateManager.hh" |
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51 | #include "G4VisManager.hh" |
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52 | |
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53 | #include <X11/Xatom.h> |
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54 | #include <X11/Xutil.h> |
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55 | #include <X11/Xmu/StdCmap.h> |
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56 | |
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57 | #include <assert.h> |
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58 | |
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59 | int G4OpenGLXViewer::snglBuf_RGBA[12] = |
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60 | { GLX_RGBA, |
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61 | GLX_RED_SIZE, 1, |
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62 | GLX_GREEN_SIZE, 1, |
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63 | GLX_BLUE_SIZE, 1, |
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64 | GLX_DEPTH_SIZE, 1, |
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65 | GLX_STENCIL_SIZE, 1, |
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66 | None }; |
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67 | |
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68 | int G4OpenGLXViewer::dblBuf_RGBA[13] = |
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69 | { GLX_RGBA, |
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70 | GLX_RED_SIZE, 1, |
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71 | GLX_GREEN_SIZE, 1, |
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72 | GLX_BLUE_SIZE, 1, |
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73 | GLX_DOUBLEBUFFER, |
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74 | GLX_DEPTH_SIZE, 1, |
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75 | GLX_STENCIL_SIZE, 1, |
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76 | None }; |
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77 | |
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78 | #define NewString(str) \ |
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79 | ((str) != 0 ? (strncpy((char*)malloc((unsigned)strlen(str) + 1), str, (unsigned)strlen(str) + 1)) : (char*)0) |
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80 | |
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81 | #define USE_DEFAULT_COLORMAP 1 |
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82 | #define USE_STANDARD_COLORMAP 0 |
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83 | |
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84 | XVisualInfo* G4OpenGLXViewer::vi_single_buffer = 0; |
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85 | XVisualInfo* G4OpenGLXViewer::vi_double_buffer = 0; |
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86 | |
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87 | extern "C" { |
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88 | static Bool G4OpenGLXViewerWaitForNotify (Display*, XEvent* e, char* arg) { |
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89 | return (e->type == MapNotify) && (e->xmap.window == (Window) arg); |
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90 | } |
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91 | } |
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92 | |
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93 | void G4OpenGLXViewer::SetView () { |
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94 | Bool success = glXMakeCurrent (dpy, win, cx); |
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95 | if (!success) { |
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96 | fViewId = -1; // This flags an error. |
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97 | G4cerr << "G4OpenGLViewer::G4OpenGLViewer failed to attach a GLX context." |
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98 | << G4endl; |
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99 | GLint error = GL_NO_ERROR; |
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100 | while ((error = glGetError()) != GL_NO_ERROR) { |
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101 | G4cout << "GL Error: " << gluErrorString(error) << G4endl; |
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102 | } |
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103 | return; |
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104 | } |
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105 | G4OpenGLViewer::SetView (); |
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106 | } |
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107 | |
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108 | void G4OpenGLXViewer::ShowView () { |
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109 | glXWaitGL (); //Wait for effects of all previous OpenGL commands to |
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110 | //be propagated before progressing. |
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111 | glFlush (); |
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112 | |
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113 | if (fVP.IsPicking()) { |
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114 | G4cout << |
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115 | "Window activated for picking (left-mouse), exit (middle-mouse)." |
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116 | << G4endl; |
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117 | while (true) { |
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118 | if (XPending(dpy)) { |
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119 | XNextEvent(dpy, &event); |
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120 | if (event.type == ButtonPress && event.xbutton.button == 1) { |
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121 | Pick(event.xbutton.x, event.xbutton.y); |
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122 | } |
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123 | else if (event.type == ButtonPress && event.xbutton.button == 2) break; |
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124 | } |
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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 | void G4OpenGLXViewer::GetXConnection () { |
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130 | // get a connection. |
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131 | dpy = XOpenDisplay (0); |
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132 | if (!dpy) { |
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133 | fViewId = -1; // This flags an error. |
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134 | G4cerr << "G4OpenGLViewer::G4OpenGLViewer couldn't open display." << G4endl; |
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135 | return; |
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136 | } |
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137 | |
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138 | // make sure OpenGL is supported and installed properly. |
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139 | if (!glXQueryExtension (dpy, &errorBase, &eventBase)) { |
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140 | fViewId = -1; // This flags an error. |
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141 | G4cerr << "G4OpenGLViewer::G4OpenGLViewer X Server has no GLX extension." |
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142 | << G4endl; |
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143 | return; |
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144 | } |
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145 | |
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146 | } |
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147 | |
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148 | void G4OpenGLXViewer::CreateGLXContext (XVisualInfo* v) { |
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149 | |
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150 | vi = v; |
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151 | // get window's attributes |
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152 | if (!XGetWindowAttributes(dpy, XRootWindow (dpy, vi -> screen), &xwa)) { |
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153 | fViewId = -1; // This flags an error. |
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154 | G4cerr << "G4OpenGLViewer::G4OpenGLViewer couldn't return window attributes" |
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155 | << G4endl; |
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156 | return; |
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157 | } |
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158 | |
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159 | // create a GLX context |
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160 | cx = glXCreateContext (dpy, vi, 0, true); |
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161 | if (!cx) { |
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162 | fViewId = -1; // This flags an error. |
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163 | G4cerr << "G4OpenGLViewer::G4OpenGLViewer couldn't create context." |
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164 | << G4endl; |
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165 | return; |
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166 | } |
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167 | |
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168 | // New stab at getting a colormap |
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169 | |
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170 | Status status; |
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171 | XStandardColormap *standardCmaps = XAllocStandardColormap (); |
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172 | int i, numCmaps; |
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173 | |
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174 | status = XmuLookupStandardColormap (dpy, |
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175 | vi -> screen, |
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176 | vi -> visualid, |
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177 | vi -> depth, |
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178 | XA_RGB_DEFAULT_MAP, |
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179 | False, |
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180 | True); |
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181 | |
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182 | if (status == 1) { |
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183 | cmap = 0; |
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184 | status = XGetRGBColormaps (dpy, |
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185 | XRootWindow (dpy, vi -> screen), |
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186 | &standardCmaps, |
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187 | &numCmaps, |
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188 | XA_RGB_DEFAULT_MAP); |
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189 | if (status == 1) |
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190 | for (i = 0; i < numCmaps; i++) { |
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191 | if (standardCmaps[i].visualid == vi -> visualid) { |
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192 | cmap = standardCmaps[i].colormap; |
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193 | XFree (standardCmaps); |
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194 | break; |
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195 | } |
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196 | } |
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197 | if (!cmap) { |
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198 | fViewId = -1; // This flags an error. |
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199 | if (G4VisManager::GetVerbosity() >= G4VisManager::errors) |
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200 | G4cerr << |
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201 | "G4OpenGLViewer::G4OpenGLViewer failed to allocate a standard colormap." |
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202 | << G4endl; |
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203 | return; |
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204 | } |
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205 | if (G4VisManager::GetVerbosity() >= G4VisManager::confirmations) |
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206 | G4cout << "Got standard cmap" << G4endl; |
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207 | } else { |
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208 | cmap = XCreateColormap (dpy, |
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209 | XRootWindow(dpy, vi -> screen), |
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210 | vi -> visual, |
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211 | AllocNone); |
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212 | if (G4VisManager::GetVerbosity() >= G4VisManager::confirmations) |
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213 | G4cout << "Created own cmap" << G4endl; |
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214 | } |
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215 | |
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216 | if (!cmap) { |
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217 | fViewId = -1; // This flags an error. |
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218 | if (G4VisManager::GetVerbosity() >= G4VisManager::errors) |
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219 | G4cout << "G4OpenGLViewer::G4OpenGLViewer failed to allocate a Colormap." |
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220 | << G4endl; |
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221 | return; |
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222 | } |
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223 | |
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224 | } |
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225 | |
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226 | void G4OpenGLXViewer::CreateMainWindow () { |
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227 | |
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228 | // create a window |
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229 | swa.colormap = cmap; |
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230 | swa.border_pixel = 0; |
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231 | swa.event_mask = ExposureMask | ButtonPressMask | StructureNotifyMask; |
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232 | swa.backing_store = WhenMapped; |
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233 | |
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234 | // Window size and position... |
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235 | size_hints = XAllocSizeHints(); |
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236 | |
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237 | ResizeWindow(fVP.GetWindowSizeHintX(),fVP.GetWindowSizeHintY()); |
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238 | |
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239 | G4int x_origin = fVP.GetWindowAbsoluteLocationHintX(DisplayWidth(dpy, vi -> screen)); |
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240 | |
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241 | // FIXME, screen size != window size on MAC, but I don't know have to get the menuBar |
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242 | // size on MAC. L.Garnier 01/2009 |
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243 | G4int y_origin = fVP.GetWindowAbsoluteLocationHintY(DisplayHeight(dpy, vi -> screen)); |
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244 | |
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245 | size_hints->base_width = getWinWidth(); |
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246 | size_hints->base_height = getWinHeight(); |
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247 | size_hints->x = x_origin; |
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248 | size_hints->y = y_origin; |
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249 | if (fVP.IsWindowSizeHintX () && fVP.IsWindowLocationHintX () && fVP.IsWindowLocationHintY ()) { |
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250 | size_hints->flags |= PSize | PPosition; |
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251 | } else if (fVP.IsWindowSizeHintX () && !(fVP.IsWindowLocationHintX () || fVP.IsWindowLocationHintY ())) { |
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252 | size_hints->flags |= PSize; |
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253 | } else if ((!fVP.IsWindowSizeHintX ()) && fVP.IsWindowLocationHintX () && fVP.IsWindowLocationHintY ()) { |
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254 | size_hints->flags |= PPosition; |
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255 | } |
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256 | if (G4VisManager::GetVerbosity() >= G4VisManager::confirmations) |
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257 | G4cout << "Window name: " << fName << G4endl; |
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258 | strncpy (charViewName, fName, 99); charViewName[99] = '\0'; |
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259 | char *window_name = charViewName; |
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260 | char *icon_name = charViewName; |
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261 | //char tmpatom[] = "XA_WM_NORMAL_HINTS"; |
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262 | wm_hints = XAllocWMHints(); |
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263 | class_hints = XAllocClassHint(); |
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264 | |
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265 | XStringListToTextProperty (&window_name, 1, &windowName); |
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266 | XStringListToTextProperty (&icon_name, 1, &iconName); |
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267 | |
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268 | wm_hints -> initial_state = NormalState; |
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269 | wm_hints -> input = True; |
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270 | wm_hints -> icon_pixmap = icon_pixmap; |
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271 | wm_hints -> flags = StateHint | IconPixmapHint | InputHint; |
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272 | |
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273 | class_hints -> res_name = NewString("G4OpenGL"); |
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274 | class_hints -> res_class = NewString("G4OpenGL"); |
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275 | |
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276 | win = XCreateWindow (dpy, XRootWindow (dpy, vi -> screen), x_origin, |
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277 | y_origin, getWinWidth(), getWinHeight(), 0, vi -> depth, |
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278 | InputOutput, vi -> visual, |
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279 | CWBorderPixel | CWColormap | |
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280 | CWEventMask | CWBackingStore, |
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281 | &swa); |
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282 | |
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283 | XSetWMProperties (dpy, win, &windowName, &iconName, 0, 0, |
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284 | size_hints, wm_hints, class_hints); |
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285 | |
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286 | // request X to Draw window on screen. |
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287 | XMapWindow (dpy, win); |
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288 | |
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289 | // Wait for window to appear (wait for an "expose" event). |
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290 | XIfEvent (dpy, &event, G4OpenGLXViewerWaitForNotify, (char*) win); |
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291 | |
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292 | // connect the context to a window |
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293 | Bool success = glXMakeCurrent (dpy, win, cx); |
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294 | if (!success) { |
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295 | fViewId = -1; // This flags an error. |
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296 | G4cerr << "G4OpenGLViewer::G4OpenGLViewer failed to attach a GLX context." |
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297 | << G4endl; |
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298 | GLint error = GL_NO_ERROR; |
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299 | while ((error = glGetError()) != GL_NO_ERROR) { |
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300 | G4cout << "GL Error: " << gluErrorString(error) << G4endl; |
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301 | } |
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302 | return; |
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303 | } |
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304 | |
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305 | } |
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306 | |
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307 | void G4OpenGLXViewer::CreateFontLists () { |
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308 | |
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309 | std::map<G4double,G4String> fonts; // G4VMarker screen size and font name. |
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310 | fonts[10.] = "-adobe-courier-bold-r-normal--10-100-75-75-m-60-iso8859-1"; |
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311 | fonts[11.] = "-adobe-courier-bold-r-normal--11-80-100-100-m-60-iso8859-1"; |
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312 | fonts[12.] = "-adobe-courier-bold-r-normal--12-120-75-75-m-70-iso8859-1"; |
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313 | fonts[13.] = "fixed"; |
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314 | fonts[14.] = "-adobe-courier-bold-r-normal--14-100-100-100-m-90-iso8859-1"; |
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315 | fonts[17.] = "-adobe-courier-bold-r-normal--17-120-100-100-m-100-iso8859-1"; |
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316 | fonts[18.] = "-adobe-courier-bold-r-normal--18-180-75-75-m-110-iso8859-1"; |
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317 | fonts[20.] = "-adobe-courier-bold-r-normal--20-140-100-100-m-110-iso8859-1"; |
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318 | fonts[24.] = "-adobe-courier-bold-r-normal--24-240-75-75-m-150-iso8859-1"; |
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319 | fonts[25.] = "-adobe-courier-bold-r-normal--25-180-100-100-m-150-iso8859-1"; |
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320 | fonts[34.] = "-adobe-courier-bold-r-normal--34-240-100-100-m-200-iso8859-1"; |
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321 | std::map<G4double,G4String>::const_iterator i; |
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322 | for (i = fonts.begin(); i != fonts.end(); ++i) { |
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323 | XFontStruct* font_info = XLoadQueryFont(dpy, i->second); |
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324 | if (!font_info) { |
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325 | G4cerr << |
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326 | "G4OpenGLXViewer: XLoadQueryFont failed for font\n " |
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327 | << i->second |
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328 | << G4endl; |
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329 | continue; |
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330 | } |
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331 | G4int font_base = glGenLists(256); |
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332 | if (!font_base) { |
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333 | G4cerr << "G4OpenGLXViewer: out of display lists for fonts." |
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334 | << G4endl; |
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335 | continue; |
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336 | } |
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337 | G4int first = font_info->min_char_or_byte2; |
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338 | G4int last = font_info->max_char_or_byte2; |
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339 | glXUseXFont(font_info->fid, first, last-first+1,font_base+first); |
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340 | G4OpenGLFontBaseStore::AddFontBase(this,font_base,i->first,i->second); |
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341 | } |
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342 | } |
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343 | |
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344 | void G4OpenGLXViewer::drawText(const char * textString,int x,int y,int z, int size){ |
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345 | |
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346 | CreateFontLists (); |
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347 | // gl2ps or GL window ? |
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348 | if (! drawGl2psText(textString,size)) { |
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349 | |
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350 | G4int font_base = G4OpenGLFontBaseStore::GetFontBase(this,size); |
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351 | if (font_base < 0) { |
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352 | static G4int callCount = 0; |
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353 | ++callCount; |
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354 | if (callCount <= 10 || callCount%100 == 0) { |
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355 | G4cout << |
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356 | "G4OpenGLSceneHandler::AddPrimitive (const G4Text&) call count " |
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357 | << callCount << |
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358 | "\n No fonts available." |
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359 | "\n Called with text \"" |
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360 | << textString |
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361 | << "\"\n at " |
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362 | << "x:"<< x |
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363 | << "y:"<< y |
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364 | << "z:"<< z |
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365 | << ", size " << size |
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366 | // << ", offsets " << text.GetXOffset () << ", " << text.GetYOffset () |
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367 | << G4endl; |
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368 | } |
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369 | return; |
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370 | } |
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371 | // No action on offset or layout at present. |
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372 | glPushAttrib(GL_LIST_BIT); |
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373 | glListBase(font_base); |
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374 | glCallLists(strlen(textString), GL_UNSIGNED_BYTE, (GLubyte *)textString); |
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375 | glPopAttrib(); |
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376 | } |
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377 | } |
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378 | |
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379 | |
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380 | G4OpenGLXViewer::G4OpenGLXViewer (G4OpenGLSceneHandler& scene): |
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381 | G4VViewer (scene, -1), |
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382 | G4OpenGLViewer (scene), |
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383 | vi_immediate (0), |
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384 | vi_stored (0), |
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385 | vi (0), |
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386 | cmap (0) |
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387 | { |
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388 | // To satisfy Coverity |
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389 | xwa.visual = 0; |
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390 | iconName.value = 0; |
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391 | xwa.screen = 0; |
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392 | windowName.value = 0; |
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393 | |
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394 | GetXConnection (); |
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395 | if (fViewId < 0) return; |
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396 | |
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397 | // Try for a visual suitable for OpenGLImmediate.. |
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398 | // first try for a single buffered RGB window |
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399 | if (!vi_single_buffer) { |
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400 | vi_single_buffer = |
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401 | glXChooseVisual (dpy, XDefaultScreen (dpy), snglBuf_RGBA); |
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402 | } |
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403 | if (!vi_double_buffer) { |
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404 | vi_double_buffer = |
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405 | glXChooseVisual (dpy, XDefaultScreen (dpy), dblBuf_RGBA); |
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406 | } |
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407 | |
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408 | if (vi_single_buffer || vi_double_buffer) { |
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409 | if (!vi_double_buffer) { |
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410 | G4cout << |
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411 | "G4OpenGLXViewer::G4OpenGLXViewer: unable to get a double buffer visual." |
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412 | "\n Working with a single buffer." |
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413 | << G4endl; |
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414 | } |
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415 | } else { |
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416 | if (!vi_single_buffer) { |
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417 | G4cout << |
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418 | "G4OpenGLXViewer::G4OpenGLXViewer: unable to get a single buffer visual." |
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419 | << G4endl; |
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420 | } |
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421 | if (!vi_double_buffer) { |
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422 | G4cout << |
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423 | "G4OpenGLXViewer::G4OpenGLXViewer: unable to get a double buffer visual." |
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424 | << G4endl; |
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425 | } |
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426 | } |
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427 | |
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428 | if (vi_single_buffer) { |
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429 | vi_immediate = vi_single_buffer; |
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430 | attributeList = snglBuf_RGBA; |
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431 | } |
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432 | |
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433 | if (!vi_immediate){ |
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434 | // next try for a double buffered RGB, but Draw to top buffer |
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435 | if (vi_double_buffer) { |
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436 | vi_immediate = vi_double_buffer; |
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437 | attributeList = dblBuf_RGBA; |
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438 | } |
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439 | } |
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440 | |
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441 | // Now try for a visual suitable for OpenGLStored... |
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442 | // Try for a double buffered RGB window |
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443 | if (vi_double_buffer) { |
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444 | vi_stored = vi_double_buffer; |
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445 | attributeList = dblBuf_RGBA; |
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446 | } |
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447 | |
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448 | if (!vi_immediate || !vi_stored) { |
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449 | G4cout << |
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450 | "G4OpenGLXViewer::G4OpenGLXViewer: unable to get required visuals." |
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451 | << G4endl; |
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452 | fViewId = -1; // This flags an error. |
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453 | } |
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454 | |
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455 | // glClearColor (0., 0., 0., 0.); |
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456 | // glClearDepth (1.); |
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457 | } |
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458 | |
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459 | G4OpenGLXViewer::~G4OpenGLXViewer () { |
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460 | if (fViewId >= 0) { |
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461 | //Close a window from here |
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462 | glXMakeCurrent (dpy, None, NULL); |
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463 | glXDestroyContext (dpy, cx); |
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464 | if (win) XDestroyWindow (dpy, win); // ...if already deleted in |
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465 | // sub-class G4OpenGLXmViewer. |
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466 | XFlush (dpy); |
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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 | #endif |
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