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 1.42 2007/05/25 10:47:17 allison Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-00-ref-01 $ |
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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 | |
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39 | #include "G4OpenGLFontBaseStore.hh" |
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40 | |
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41 | #include <sstream> |
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42 | |
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43 | #include "G4VisExtent.hh" |
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44 | #include "G4LogicalVolume.hh" |
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45 | #include "G4VSolid.hh" |
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46 | #include "G4Point3D.hh" |
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47 | #include "G4Normal3D.hh" |
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48 | |
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49 | #include <X11/Xatom.h> |
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50 | #include <X11/Xutil.h> |
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51 | |
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52 | #include <assert.h> |
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53 | |
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54 | int G4OpenGLXViewer::snglBuf_RGBA[12] = |
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55 | { GLX_RGBA, |
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56 | GLX_RED_SIZE, 1, |
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57 | GLX_GREEN_SIZE, 1, |
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58 | GLX_BLUE_SIZE, 1, |
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59 | GLX_DEPTH_SIZE, 1, |
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60 | GLX_STENCIL_SIZE, 1, |
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61 | None }; |
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62 | |
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63 | int G4OpenGLXViewer::dblBuf_RGBA[13] = |
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64 | { GLX_RGBA, |
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65 | GLX_RED_SIZE, 1, |
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66 | GLX_GREEN_SIZE, 1, |
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67 | GLX_BLUE_SIZE, 1, |
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68 | GLX_DOUBLEBUFFER, |
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69 | GLX_DEPTH_SIZE, 1, |
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70 | GLX_STENCIL_SIZE, 1, |
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71 | None }; |
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72 | |
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73 | #define NewString(str) \ |
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74 | ((str) != NULL ? (strcpy((char*)malloc((unsigned)strlen(str) + 1), str)) : (char*)NULL) |
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75 | |
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76 | #define USE_DEFAULT_COLORMAP 1 |
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77 | #define USE_STANDARD_COLORMAP 0 |
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78 | |
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79 | XVisualInfo* G4OpenGLXViewer::vi_single_buffer = 0; |
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80 | XVisualInfo* G4OpenGLXViewer::vi_double_buffer = 0; |
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81 | |
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82 | extern "C" { |
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83 | static Bool G4OpenGLXViewerWaitForNotify (Display*, XEvent* e, char* arg) { |
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84 | return (e->type == MapNotify) && (e->xmap.window == (Window) arg); |
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85 | } |
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86 | } |
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87 | |
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88 | void G4OpenGLXViewer::SetView () { |
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89 | glXMakeCurrent (dpy, win, cx); |
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90 | G4OpenGLViewer::SetView (); |
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91 | } |
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92 | |
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93 | void G4OpenGLXViewer::ShowView () { |
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94 | glXWaitGL (); //Wait for effects of all previous OpenGL commands to |
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95 | //be propagated before progressing. |
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96 | glFlush (); |
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97 | |
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98 | if (fVP.IsPicking()) { |
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99 | G4cout << |
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100 | "Window activated for picking (left-mouse), exit (middle-mouse)." |
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101 | << G4endl; |
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102 | while (true) { |
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103 | if (XPending(dpy)) { |
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104 | XNextEvent(dpy, &event); |
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105 | if (event.type == ButtonPress && event.xbutton.button == 1) { |
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106 | Pick(event.xbutton.x, event.xbutton.y); |
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107 | } |
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108 | else if (event.type == ButtonPress && event.xbutton.button == 2) break; |
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109 | } |
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110 | } |
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111 | } |
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112 | } |
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113 | |
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114 | void G4OpenGLXViewer::GetXConnection () { |
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115 | // get a connection. |
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116 | dpy = XOpenDisplay (0); |
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117 | if (!dpy) { |
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118 | fViewId = -1; // This flags an error. |
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119 | G4cerr << "G4OpenGLViewer::G4OpenGLViewer couldn't open display." << G4endl; |
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120 | return; |
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121 | } |
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122 | |
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123 | // make sure OpenGL is supported and installed properly. |
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124 | if (!glXQueryExtension (dpy, &errorBase, &eventBase)) { |
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125 | fViewId = -1; // This flags an error. |
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126 | G4cerr << "G4OpenGLViewer::G4OpenGLViewer X Server has no GLX extension." |
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127 | << G4endl; |
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128 | return; |
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129 | } |
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130 | |
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131 | } |
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132 | |
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133 | void G4OpenGLXViewer::CreateGLXContext (XVisualInfo* v) { |
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134 | |
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135 | vi = v; |
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136 | // get window's attributes |
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137 | if (!XGetWindowAttributes(dpy, XRootWindow (dpy, vi -> screen), &xwa)) { |
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138 | fViewId = -1; // This flags an error. |
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139 | G4cerr << "G4OpenGLViewer::G4OpenGLViewer couldn't return window attributes" |
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140 | << G4endl; |
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141 | return; |
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142 | } |
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143 | |
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144 | // create a GLX context |
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145 | cx = glXCreateContext (dpy, vi, 0, true); |
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146 | if (!cx) { |
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147 | fViewId = -1; // This flags an error. |
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148 | G4cerr << "G4OpenGLViewer::G4OpenGLViewer couldn't create context." |
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149 | << G4endl; |
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150 | return; |
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151 | } |
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152 | |
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153 | // New stab at getting a colormap |
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154 | |
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155 | Status status; |
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156 | XStandardColormap *standardCmaps = XAllocStandardColormap (); |
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157 | int i, numCmaps; |
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158 | |
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159 | status = XmuLookupStandardColormap (dpy, |
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160 | vi -> screen, |
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161 | vi -> visualid, |
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162 | vi -> depth, |
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163 | XA_RGB_DEFAULT_MAP, |
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164 | False, |
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165 | True); |
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166 | |
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167 | if (status == 1) { |
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168 | cmap = 0; |
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169 | status = XGetRGBColormaps (dpy, |
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170 | XRootWindow (dpy, vi -> screen), |
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171 | &standardCmaps, |
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172 | &numCmaps, |
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173 | XA_RGB_DEFAULT_MAP); |
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174 | if (status == 1) |
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175 | for (i = 0; i < numCmaps; i++) { |
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176 | if (standardCmaps[i].visualid == vi -> visualid) { |
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177 | cmap = standardCmaps[i].colormap; |
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178 | XFree (standardCmaps); |
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179 | break; |
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180 | } |
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181 | } |
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182 | if (!cmap) { |
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183 | fViewId = -1; // This flags an error. |
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184 | G4cerr << |
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185 | "G4OpenGLViewer::G4OpenGLViewer failed to allocate a standard colormap." |
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186 | << G4endl; |
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187 | return; |
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188 | } |
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189 | G4cout << "Got standard cmap" << G4endl; |
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190 | } else { |
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191 | cmap = XCreateColormap (dpy, |
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192 | XRootWindow(dpy, vi -> screen), |
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193 | vi -> visual, |
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194 | AllocNone); |
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195 | G4cout << "Created own cmap" << G4endl; |
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196 | } |
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197 | |
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198 | if (!cmap) { |
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199 | fViewId = -1; // This flags an error. |
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200 | G4cerr << "G4OpenGLViewer::G4OpenGLViewer failed to allocate a Colormap." |
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201 | << G4endl; |
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202 | return; |
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203 | } |
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204 | |
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205 | } |
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206 | |
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207 | void G4OpenGLXViewer::CreateMainWindow () { |
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208 | |
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209 | // create a window |
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210 | swa.colormap = cmap; |
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211 | swa.border_pixel = 0; |
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212 | swa.event_mask = ExposureMask | ButtonPressMask | StructureNotifyMask; |
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213 | swa.backing_store = WhenMapped; |
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214 | |
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215 | // Window size and position... |
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216 | unsigned int width, height; |
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217 | x_origin = 0; |
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218 | y_origin = 0; |
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219 | size_hints = XAllocSizeHints(); |
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220 | const G4String& XGeometryString = fVP.GetXGeometryString(); |
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221 | int screen_num = DefaultScreen(dpy); |
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222 | if (!XGeometryString.empty()) { |
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223 | G4int geometryResultMask = XParseGeometry |
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224 | ((char*)XGeometryString.c_str(), |
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225 | &x_origin, &y_origin, &width, &height); |
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226 | if (geometryResultMask & (WidthValue | HeightValue)) { |
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227 | if (geometryResultMask & XValue) { |
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228 | if (geometryResultMask & XNegative) { |
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229 | x_origin = DisplayWidth(dpy, screen_num) + x_origin - width; |
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230 | } |
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231 | size_hints->flags |= PPosition; |
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232 | size_hints->x = x_origin; |
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233 | } |
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234 | if (geometryResultMask & YValue) { |
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235 | if (geometryResultMask & YNegative) { |
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236 | y_origin = DisplayHeight(dpy, screen_num) + y_origin - height; |
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237 | } |
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238 | size_hints->flags |= PPosition; |
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239 | size_hints->y = y_origin; |
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240 | } |
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241 | } else { |
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242 | G4cout << "ERROR: Geometry string \"" |
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243 | << XGeometryString |
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244 | << "\" invalid. Using \"600x600\"." |
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245 | << G4endl; |
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246 | width = 600; |
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247 | height = 600; |
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248 | } |
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249 | } |
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250 | size_hints->width = width; |
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251 | size_hints->height = height; |
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252 | size_hints->flags |= PSize; |
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253 | |
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254 | // G4int WinSize_x; |
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255 | // G4int WinSize_y; |
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256 | WinSize_x = width; |
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257 | WinSize_y = height; |
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258 | |
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259 | G4cout << "Window name: " << fName << G4endl; |
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260 | strncpy (charViewName, fName, 100); |
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261 | char *window_name = charViewName; |
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262 | char *icon_name = charViewName; |
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263 | //char tmpatom[] = "XA_WM_NORMAL_HINTS"; |
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264 | wm_hints = XAllocWMHints(); |
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265 | class_hints = XAllocClassHint(); |
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266 | |
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267 | XStringListToTextProperty (&window_name, 1, &windowName); |
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268 | XStringListToTextProperty (&icon_name, 1, &iconName); |
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269 | |
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270 | wm_hints -> initial_state = NormalState; |
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271 | wm_hints -> input = True; |
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272 | wm_hints -> icon_pixmap = icon_pixmap; |
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273 | wm_hints -> flags = StateHint | IconPixmapHint | InputHint; |
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274 | |
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275 | class_hints -> res_name = NewString("G4OpenGL"); |
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276 | class_hints -> res_class = NewString("G4OpenGL"); |
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277 | |
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278 | win = XCreateWindow (dpy, XRootWindow (dpy, vi -> screen), x_origin, |
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279 | y_origin, WinSize_x, WinSize_y, 0, vi -> depth, |
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280 | InputOutput, vi -> visual, |
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281 | CWBorderPixel | CWColormap | |
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282 | CWEventMask | CWBackingStore, |
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283 | &swa); |
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284 | |
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285 | XSetWMProperties (dpy, win, &windowName, &iconName, 0, 0, |
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286 | size_hints, wm_hints, class_hints); |
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287 | |
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288 | // request X to Draw window on screen. |
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289 | XMapWindow (dpy, win); |
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290 | |
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291 | // Wait for window to appear (wait for an "expose" event). |
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292 | XIfEvent (dpy, &event, G4OpenGLXViewerWaitForNotify, (char*) win); |
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293 | |
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294 | // connect the context to a window |
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295 | Bool success = glXMakeCurrent (dpy, win, cx); |
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296 | if (!success) { |
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297 | fViewId = -1; // This flags an error. |
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298 | G4cerr << "G4OpenGLViewer::G4OpenGLViewer failed to attach a GLX context." |
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299 | << G4endl; |
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300 | GLint error = GL_NO_ERROR; |
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301 | while ((error = glGetError()) != GL_NO_ERROR) { |
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302 | G4cout << "GL Error: " << gluErrorString(error) << G4endl; |
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303 | } |
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304 | return; |
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305 | } |
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306 | |
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307 | } |
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308 | |
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309 | void G4OpenGLXViewer::CreateFontLists () { |
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310 | |
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311 | std::map<G4double,G4String> fonts; // G4VMarker screen size and font name. |
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312 | fonts[10.] = "-adobe-courier-bold-r-normal--10-100-75-75-m-60-iso8859-1"; |
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313 | fonts[11.] = "-adobe-courier-bold-r-normal--11-80-100-100-m-60-iso8859-1"; |
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314 | fonts[12.] = "-adobe-courier-bold-r-normal--12-120-75-75-m-70-iso8859-1"; |
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315 | fonts[13.] = "fixed"; |
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316 | fonts[14.] = "-adobe-courier-bold-r-normal--14-100-100-100-m-90-iso8859-1"; |
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317 | fonts[17.] = "-adobe-courier-bold-r-normal--17-120-100-100-m-100-iso8859-1"; |
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318 | fonts[18.] = "-adobe-courier-bold-r-normal--18-180-75-75-m-110-iso8859-1"; |
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319 | fonts[20.] = "-adobe-courier-bold-r-normal--20-140-100-100-m-110-iso8859-1"; |
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320 | fonts[24.] = "-adobe-courier-bold-r-normal--24-240-75-75-m-150-iso8859-1"; |
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321 | fonts[25.] = "-adobe-courier-bold-r-normal--25-180-100-100-m-150-iso8859-1"; |
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322 | fonts[34.] = "-adobe-courier-bold-r-normal--34-240-100-100-m-200-iso8859-1"; |
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323 | std::map<G4double,G4String>::const_iterator i; |
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324 | for (i = fonts.begin(); i != fonts.end(); ++i) { |
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325 | XFontStruct* font_info = XLoadQueryFont(dpy, i->second); |
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326 | if (!font_info) { |
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327 | G4cerr << |
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328 | "G4OpenGLXViewer: XLoadQueryFont failed for font\n " |
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329 | << i->second |
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330 | << G4endl; |
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331 | continue; |
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332 | } |
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333 | G4int font_base = glGenLists(256); |
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334 | if (!font_base) { |
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335 | G4cerr << "G4OpenGLXViewer: out of display lists for fonts." |
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336 | << G4endl; |
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337 | continue; |
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338 | } |
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339 | G4int first = font_info->min_char_or_byte2; |
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340 | G4int last = font_info->max_char_or_byte2; |
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341 | glXUseXFont(font_info->fid, first, last-first+1,font_base+first); |
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342 | G4OpenGLFontBaseStore::AddFontBase(this,font_base,i->first,i->second); |
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343 | } |
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344 | } |
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345 | |
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346 | G4OpenGLXViewer::G4OpenGLXViewer (G4OpenGLSceneHandler& scene): |
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347 | G4VViewer (scene, -1), |
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348 | G4OpenGLViewer (scene), |
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349 | vi_immediate (0), |
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350 | vi_stored (0), |
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351 | vi (0), |
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352 | cmap (0) |
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353 | { |
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354 | GetXConnection (); |
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355 | if (fViewId < 0) return; |
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356 | |
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357 | // Try for a visual suitable for OpenGLImmediate.. |
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358 | // first try for a single buffered RGB window |
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359 | if (!vi_single_buffer) { |
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360 | vi_single_buffer = |
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361 | glXChooseVisual (dpy, XDefaultScreen (dpy), snglBuf_RGBA); |
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362 | } |
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363 | if (!vi_double_buffer) { |
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364 | vi_double_buffer = |
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365 | glXChooseVisual (dpy, XDefaultScreen (dpy), dblBuf_RGBA); |
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366 | } |
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367 | |
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368 | if (vi_single_buffer || vi_double_buffer) { |
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369 | if (!vi_double_buffer) { |
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370 | G4cout << |
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371 | "G4OpenGLXViewer::G4OpenGLXViewer: unable to get a double buffer visual." |
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372 | "\n Working with a single buffer." |
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373 | << G4endl; |
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374 | } |
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375 | } else { |
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376 | if (!vi_single_buffer) { |
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377 | G4cout << |
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378 | "G4OpenGLXViewer::G4OpenGLXViewer: unable to get a single buffer visual." |
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379 | << G4endl; |
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380 | } |
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381 | if (!vi_double_buffer) { |
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382 | G4cout << |
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383 | "G4OpenGLXViewer::G4OpenGLXViewer: unable to get a double buffer visual." |
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384 | << G4endl; |
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385 | } |
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386 | } |
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387 | |
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388 | if (vi_single_buffer) { |
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389 | vi_immediate = vi_single_buffer; |
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390 | attributeList = snglBuf_RGBA; |
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391 | } |
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392 | |
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393 | if (!vi_immediate){ |
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394 | // next try for a double buffered RGB, but Draw to top buffer |
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395 | if (vi_double_buffer) { |
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396 | vi_immediate = vi_double_buffer; |
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397 | attributeList = dblBuf_RGBA; |
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398 | } |
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399 | } |
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400 | |
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401 | // Now try for a visual suitable for OpenGLStored... |
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402 | // Try for a double buffered RGB window |
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403 | if (vi_double_buffer) { |
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404 | vi_stored = vi_double_buffer; |
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405 | attributeList = dblBuf_RGBA; |
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406 | } |
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407 | |
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408 | if (!vi_immediate || !vi_stored) { |
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409 | G4cout << |
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410 | "G4OpenGLXViewer::G4OpenGLXViewer: unable to get required visuals." |
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411 | << G4endl; |
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412 | fViewId = -1; // This flags an error. |
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413 | } |
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414 | |
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415 | // glClearColor (0., 0., 0., 0.); |
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416 | // glClearDepth (1.); |
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417 | } |
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418 | |
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419 | G4OpenGLXViewer::~G4OpenGLXViewer () { |
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420 | if (fViewId >= 0) { |
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421 | //Close a window from here |
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422 | glXMakeCurrent (dpy, None, NULL); |
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423 | glXDestroyContext (dpy, cx); |
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424 | if (win) XDestroyWindow (dpy, win); // ...if already deleted in |
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425 | // sub-class G4OpenGLXmViewer. |
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426 | XFlush (dpy); |
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427 | } |
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428 | } |
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429 | |
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430 | void G4OpenGLXViewer::print() { |
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431 | |
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432 | //using namespace std; |
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433 | //cout << "print_col_callback requested with file name: " << print_string << G4endl; |
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434 | |
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435 | if (vectored_ps) { |
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436 | |
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437 | G4OpenGLViewer::print(); |
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438 | |
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439 | } else { |
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440 | |
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441 | XVisualInfo* pvi; |
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442 | GLXContext pcx = create_GL_print_context(pvi); |
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443 | |
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444 | if (!pcx) { |
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445 | G4cout << "Unable to create print context." << G4endl; |
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446 | return; |
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447 | } |
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448 | |
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449 | GLXContext tmp_cx; |
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450 | tmp_cx = cx; |
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451 | cx=pcx; |
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452 | |
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453 | Pixmap pmap = XCreatePixmap (dpy, |
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454 | XRootWindow (dpy, pvi->screen), |
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455 | WinSize_x, WinSize_y, |
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456 | pvi->depth); |
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457 | |
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458 | GLXPixmap glxpmap = glXCreateGLXPixmap (dpy, |
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459 | pvi, |
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460 | pmap); |
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461 | |
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462 | GLXDrawable tmp_win; |
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463 | tmp_win=win; |
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464 | win=glxpmap; |
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465 | |
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466 | glXMakeCurrent (dpy, |
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467 | win, |
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468 | cx); |
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469 | |
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470 | glViewport (0, 0, WinSize_x, WinSize_y); |
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471 | |
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472 | ClearView (); |
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473 | SetView (); |
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474 | DrawView (); |
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475 | |
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476 | generateEPS (print_string, |
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477 | print_colour, |
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478 | WinSize_x, WinSize_y); |
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479 | |
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480 | win=tmp_win; |
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481 | cx=tmp_cx; |
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482 | |
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483 | glXMakeCurrent (dpy, |
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484 | win, |
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485 | cx); |
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486 | |
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487 | } |
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488 | |
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489 | } |
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490 | |
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491 | GLubyte* G4OpenGLXViewer::grabPixels (int inColor, unsigned int width, unsigned int height) { |
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492 | |
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493 | GLubyte* buffer; |
---|
494 | GLint swapbytes, lsbfirst, rowlength; |
---|
495 | GLint skiprows, skippixels, alignment; |
---|
496 | GLenum format; |
---|
497 | int size; |
---|
498 | |
---|
499 | if (inColor) { |
---|
500 | format = GL_RGB; |
---|
501 | size = width*height*3; |
---|
502 | } else { |
---|
503 | format = GL_LUMINANCE; |
---|
504 | size = width*height*1; |
---|
505 | } |
---|
506 | |
---|
507 | buffer = new GLubyte[size]; |
---|
508 | if (buffer == NULL) |
---|
509 | return NULL; |
---|
510 | |
---|
511 | glGetIntegerv (GL_UNPACK_SWAP_BYTES, &swapbytes); |
---|
512 | glGetIntegerv (GL_UNPACK_LSB_FIRST, &lsbfirst); |
---|
513 | glGetIntegerv (GL_UNPACK_ROW_LENGTH, &rowlength); |
---|
514 | |
---|
515 | glGetIntegerv (GL_UNPACK_SKIP_ROWS, &skiprows); |
---|
516 | glGetIntegerv (GL_UNPACK_SKIP_PIXELS, &skippixels); |
---|
517 | glGetIntegerv (GL_UNPACK_ALIGNMENT, &alignment); |
---|
518 | |
---|
519 | glPixelStorei (GL_UNPACK_SWAP_BYTES, GL_FALSE); |
---|
520 | glPixelStorei (GL_UNPACK_LSB_FIRST, GL_FALSE); |
---|
521 | glPixelStorei (GL_UNPACK_ROW_LENGTH, 0); |
---|
522 | |
---|
523 | glPixelStorei (GL_UNPACK_SKIP_ROWS, 0); |
---|
524 | glPixelStorei (GL_UNPACK_SKIP_PIXELS, 0); |
---|
525 | glPixelStorei (GL_UNPACK_ALIGNMENT, 1); |
---|
526 | |
---|
527 | glReadPixels (0, 0, (GLsizei)width, (GLsizei)height, format, GL_UNSIGNED_BYTE, (GLvoid*) buffer); |
---|
528 | |
---|
529 | glPixelStorei (GL_UNPACK_SWAP_BYTES, swapbytes); |
---|
530 | glPixelStorei (GL_UNPACK_LSB_FIRST, lsbfirst); |
---|
531 | glPixelStorei (GL_UNPACK_ROW_LENGTH, rowlength); |
---|
532 | |
---|
533 | glPixelStorei (GL_UNPACK_SKIP_ROWS, skiprows); |
---|
534 | glPixelStorei (GL_UNPACK_SKIP_PIXELS, skippixels); |
---|
535 | glPixelStorei (GL_UNPACK_ALIGNMENT, alignment); |
---|
536 | |
---|
537 | return buffer; |
---|
538 | } |
---|
539 | |
---|
540 | int G4OpenGLXViewer::generateEPS (char* filnam, |
---|
541 | int inColour, |
---|
542 | unsigned int width, |
---|
543 | unsigned int height) { |
---|
544 | |
---|
545 | FILE* fp; |
---|
546 | GLubyte* pixels; |
---|
547 | GLubyte* curpix; |
---|
548 | int components, pos, i; |
---|
549 | |
---|
550 | pixels = grabPixels (inColour, width, height); |
---|
551 | |
---|
552 | if (pixels == NULL) |
---|
553 | return 1; |
---|
554 | if (inColour) { |
---|
555 | components = 3; |
---|
556 | } else { |
---|
557 | components = 1; |
---|
558 | } |
---|
559 | |
---|
560 | fp = fopen (filnam, "w"); |
---|
561 | if (fp == NULL) { |
---|
562 | return 2; |
---|
563 | } |
---|
564 | |
---|
565 | fprintf (fp, "%%!PS-Adobe-2.0 EPSF-1.2\n"); |
---|
566 | fprintf (fp, "%%%%Title: %s\n", filnam); |
---|
567 | fprintf (fp, "%%%%Creator: OpenGL pixmap render output\n"); |
---|
568 | fprintf (fp, "%%%%BoundingBox: 0 0 %d %d\n", width, height); |
---|
569 | fprintf (fp, "%%%%EndComments\n"); |
---|
570 | fprintf (fp, "gsave\n"); |
---|
571 | fprintf (fp, "/bwproc {\n"); |
---|
572 | fprintf (fp, " rgbproc\n"); |
---|
573 | fprintf (fp, " dup length 3 idiv string 0 3 0 \n"); |
---|
574 | fprintf (fp, " 5 -1 roll {\n"); |
---|
575 | fprintf (fp, " add 2 1 roll 1 sub dup 0 eq\n"); |
---|
576 | fprintf (fp, " { pop 3 idiv 3 -1 roll dup 4 -1 roll dup\n"); |
---|
577 | fprintf (fp, " 3 1 roll 5 -1 roll } put 1 add 3 0 \n"); |
---|
578 | fprintf (fp, " { 2 1 roll } ifelse\n"); |
---|
579 | fprintf (fp, " }forall\n"); |
---|
580 | fprintf (fp, " pop pop pop\n"); |
---|
581 | fprintf (fp, "} def\n"); |
---|
582 | fprintf (fp, "systemdict /colorimage known not {\n"); |
---|
583 | fprintf (fp, " /colorimage {\n"); |
---|
584 | fprintf (fp, " pop\n"); |
---|
585 | fprintf (fp, " pop\n"); |
---|
586 | fprintf (fp, " /rgbproc exch def\n"); |
---|
587 | fprintf (fp, " { bwproc } image\n"); |
---|
588 | fprintf (fp, " } def\n"); |
---|
589 | fprintf (fp, "} if\n"); |
---|
590 | fprintf (fp, "/picstr %d string def\n", width * components); |
---|
591 | fprintf (fp, "%d %d scale\n", width, height); |
---|
592 | fprintf (fp, "%d %d %d\n", width, height, 8); |
---|
593 | fprintf (fp, "[%d 0 0 %d 0 0]\n", width, height); |
---|
594 | fprintf (fp, "{currentfile picstr readhexstring pop}\n"); |
---|
595 | fprintf (fp, "false %d\n", components); |
---|
596 | fprintf (fp, "colorimage\n"); |
---|
597 | |
---|
598 | curpix = (GLubyte*) pixels; |
---|
599 | pos = 0; |
---|
600 | for (i = width*height*components; i>0; i--) { |
---|
601 | fprintf (fp, "%02hx ", *(curpix++)); |
---|
602 | if (++pos >= 32) { |
---|
603 | fprintf (fp, "\n"); |
---|
604 | pos = 0; |
---|
605 | } |
---|
606 | } |
---|
607 | if (pos) |
---|
608 | fprintf (fp, "\n"); |
---|
609 | |
---|
610 | fprintf (fp, "grestore\n"); |
---|
611 | fprintf (fp, "showpage\n"); |
---|
612 | delete pixels; |
---|
613 | fclose (fp); |
---|
614 | return 0; |
---|
615 | } |
---|
616 | |
---|
617 | GLXContext G4OpenGLXViewer::create_GL_print_context(XVisualInfo*& pvi) { |
---|
618 | |
---|
619 | pvi = glXChooseVisual (dpy, |
---|
620 | XDefaultScreen (dpy), |
---|
621 | snglBuf_RGBA); |
---|
622 | |
---|
623 | if (!pvi) { |
---|
624 | pvi = glXChooseVisual (dpy, |
---|
625 | XDefaultScreen (dpy), |
---|
626 | dblBuf_RGBA); |
---|
627 | } |
---|
628 | |
---|
629 | return glXCreateContext (dpy, |
---|
630 | pvi, |
---|
631 | NULL, |
---|
632 | False); |
---|
633 | } |
---|
634 | |
---|
635 | #endif |
---|