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0
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@devolution.com
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21 */
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22
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23 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
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28 /* Utilities for getting and setting the X display mode */
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29
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30 #include <stdlib.h>
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31 #include <string.h>
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32
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33 #include "SDL_timer.h"
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34 #include "SDL_error.h"
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35 #include "SDL_events.h"
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36 #include "SDL_events_c.h"
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37 #include "SDL_x11video.h"
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38 #include "SDL_x11wm_c.h"
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39 #include "SDL_x11modes_c.h"
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40
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41
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42 #ifdef XFREE86_VM
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43 Bool XVidMode(GetModeInfo, (Display *dpy, int scr, XF86VidModeModeInfo *info))
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44 {
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45 XF86VidModeModeLine *l = (XF86VidModeModeLine*)((char*)info + sizeof info->dotclock);
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46 return XVidMode(GetModeLine, (dpy, scr, &info->dotclock, l));
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47 }
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48 #endif /* XFREE86_VM */
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49
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50 #ifdef XFREE86_VM
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51 static void save_mode(_THIS)
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52 {
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53 memset(&saved_mode, 0, sizeof(saved_mode));
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54 XVidMode(GetModeInfo, (SDL_Display,SDL_Screen,&saved_mode));
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55 XVidMode(GetViewPort, (SDL_Display,SDL_Screen,&saved_view.x,&saved_view.y));
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56 }
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57 #endif
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58
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59 #ifdef XFREE86_VM
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60 static void restore_mode(_THIS)
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61 {
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62 XF86VidModeModeLine mode;
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63 int unused;
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64
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65 if ( XVidMode(GetModeLine, (SDL_Display, SDL_Screen, &unused, &mode)) ) {
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66 if ( (saved_mode.hdisplay != mode.hdisplay) ||
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67 (saved_mode.vdisplay != mode.vdisplay) ) {
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68 XVidMode(SwitchToMode, (SDL_Display, SDL_Screen, &saved_mode));
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69 }
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70 }
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71 if ( (saved_view.x != 0) || (saved_view.y != 0) ) {
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72 XVidMode(SetViewPort, (SDL_Display, SDL_Screen, saved_view.x, saved_view.y));
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73 }
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74 }
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75 #endif
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76
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77 #ifdef XFREE86_VM
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78 static int cmpmodes(const void *va, const void *vb)
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79 {
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80 XF86VidModeModeInfo *a = *(XF86VidModeModeInfo**)va;
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81 XF86VidModeModeInfo *b = *(XF86VidModeModeInfo**)vb;
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82 if(a->hdisplay > b->hdisplay)
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83 return -1;
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84 return b->vdisplay - a->vdisplay;
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85 }
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86 #endif
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87
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88 static void set_best_resolution(_THIS, int width, int height)
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89 {
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90 #ifdef XFREE86_VM
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91 if ( use_vidmode ) {
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92 XF86VidModeModeLine mode;
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93 XF86VidModeModeInfo **modes;
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94 int i;
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95 int nmodes;
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96
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97 if ( XVidMode(GetModeLine, (SDL_Display, SDL_Screen, &i, &mode)) &&
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98 XVidMode(GetAllModeLines, (SDL_Display,SDL_Screen,&nmodes,&modes))){
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99 qsort(modes, nmodes, sizeof *modes, cmpmodes);
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100 #ifdef XFREE86_DEBUG
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101 printf("Available modes:\n");
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102 for ( i = 0; i < nmodes; ++i ) {
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103 printf("Mode %d: %dx%d\n", i, modes[i]->hdisplay, modes[i]->vdisplay);
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104 }
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105 #endif
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106 for ( i = nmodes-1; i > 0 ; --i ) {
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107 if ( (modes[i]->hdisplay >= width) &&
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108 (modes[i]->vdisplay >= height) )
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109 break;
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110 }
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111 if ( (modes[i]->hdisplay != mode.hdisplay) ||
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112 (modes[i]->vdisplay != mode.vdisplay) ) {
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113 XVidMode(SwitchToMode, (SDL_Display, SDL_Screen, modes[i]));
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114 }
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115 XFree(modes);
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116 }
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117 }
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118 #endif /* XFREE86_VM */
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119 }
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120
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121 static void get_real_resolution(_THIS, int* w, int* h)
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122 {
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123 #ifdef XFREE86_VM
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124 if ( use_vidmode ) {
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125 XF86VidModeModeLine mode;
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126 int unused;
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127
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128 if ( XVidMode(GetModeLine, (SDL_Display, SDL_Screen, &unused, &mode)) ) {
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129 *w = mode.hdisplay;
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130 *h = mode.vdisplay;
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131 return;
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132 }
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133 }
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134 #endif
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135 *w = DisplayWidth(SDL_Display, SDL_Screen);
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136 *h = DisplayHeight(SDL_Display, SDL_Screen);
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137 }
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138
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139 /* Called after mapping a window - waits until the window is mapped */
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140 void X11_WaitMapped(_THIS, Window win)
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141 {
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142 XEvent event;
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143 do {
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144 XMaskEvent(SDL_Display, StructureNotifyMask, &event);
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145 } while ( (event.type != MapNotify) || (event.xmap.event != win) );
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146 }
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147
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148 /* Called after unmapping a window - waits until the window is unmapped */
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149 void X11_WaitUnmapped(_THIS, Window win)
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150 {
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151 XEvent event;
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152 do {
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153 XMaskEvent(SDL_Display, StructureNotifyMask, &event);
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154 } while ( (event.type != UnmapNotify) || (event.xunmap.event != win) );
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155 }
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156
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157 static void move_cursor_to(_THIS, int x, int y)
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158 {
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159 XWarpPointer(SDL_Display, None, SDL_Root, 0, 0, 0, 0, x, y);
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160 }
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161
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162 static int add_visual(_THIS, int depth, int class)
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163 {
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164 XVisualInfo vi;
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165 if(XMatchVisualInfo(SDL_Display, SDL_Screen, depth, class, &vi)) {
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166 int n = this->hidden->nvisuals;
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167 this->hidden->visuals[n].depth = vi.depth;
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168 this->hidden->visuals[n].visual = vi.visual;
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169 this->hidden->nvisuals++;
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170 }
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171 return(this->hidden->nvisuals);
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172 }
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173 static int add_visual_byid(_THIS, const char *visual_id)
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174 {
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175 XVisualInfo *vi, template;
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176 int nvis;
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177
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178 if ( visual_id ) {
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179 memset(&template, 0, (sizeof template));
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180 template.visualid = strtol(visual_id, NULL, 0);
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181 vi = XGetVisualInfo(SDL_Display, VisualIDMask, &template, &nvis);
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182 if ( vi ) {
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183 int n = this->hidden->nvisuals;
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184 this->hidden->visuals[n].depth = vi->depth;
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185 this->hidden->visuals[n].visual = vi->visual;
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186 this->hidden->nvisuals++;
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187 XFree(vi);
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188 }
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189 }
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190 return(this->hidden->nvisuals);
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191 }
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192
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193 /* Global for the error handler */
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194 int vm_event, vm_error = -1;
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195
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196 int X11_GetVideoModes(_THIS)
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197 {
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198 #ifdef XFREE86_VM
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199 int buggy_X11;
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200 int vm_major, vm_minor;
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201 int nmodes;
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202 XF86VidModeModeInfo **modes;
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203 #endif
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204 int i;
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205
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206 vm_error = -1;
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207 use_vidmode = 0;
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208 #ifdef XFREE86_VM
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209 /* Metro-X 4.3.0 and earlier has a broken implementation of
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210 XF86VidModeGetAllModeLines() - it hangs the client.
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211 */
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212 buggy_X11 = 0;
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213 if ( strcmp(ServerVendor(SDL_Display), "Metro Link Incorporated") == 0 ) {
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214 FILE *metro_fp;
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215
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216 metro_fp = fopen("/usr/X11R6/lib/X11/Metro/.version", "r");
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217 if ( metro_fp != NULL ) {
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218 int major, minor, patch, version;
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219 major = 0; minor = 0; patch = 0;
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220 fscanf(metro_fp, "%d.%d.%d", &major, &minor, &patch);
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221 version = major*100+minor*10+patch;
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222 if ( version < 431 ) {
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223 buggy_X11 = 1;
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224 }
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225 fclose(metro_fp);
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226 }
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227 }
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228 #if defined(__alpha__) || defined(__powerpc__)
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229 /* The alpha and PPC XFree86 servers are also buggy */
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230 buggy_X11 = 1;
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231 #endif
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232 /* Enumerate the available fullscreen modes */
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233 if ( ! buggy_X11 ) {
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234 if ( XVidMode(QueryExtension, (SDL_Display, &vm_event, &vm_error)) &&
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235 XVidMode(QueryVersion, (SDL_Display, &vm_major, &vm_minor)) ) {
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236 #ifdef BROKEN_XFREE86_4001
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237 #ifdef X_XF86VidModeGetDotClocks /* Compiled under XFree86 4.0 */
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238 /* Earlier X servers hang when doing vidmode */
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239 if ( vm_major < 2 ) {
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240 #ifdef DEBUG_XF86
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241 printf("Compiled under XFree86 4.0, server is XFree86 3.X\n");
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242 #endif
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243 buggy_X11 = 1;
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244 }
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245 #else
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246 /* XFree86 3.X code works with XFree86 4.0 servers */;
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247 #endif /* XFree86 4.0 */
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248 #endif /* XFree86 4.02 and newer are fixed wrt backwards compatibility */
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249 } else {
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250 buggy_X11 = 1;
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251 }
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252 }
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253 if ( ! buggy_X11 &&
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254 XVidMode(GetAllModeLines, (SDL_Display, SDL_Screen,&nmodes,&modes)) ) {
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255
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256 qsort(modes, nmodes, sizeof *modes, cmpmodes);
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257 SDL_modelist = (SDL_Rect **)malloc((nmodes+1)*sizeof(SDL_Rect *));
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258 if ( SDL_modelist ) {
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259 for ( i=0; i<nmodes; ++i ) {
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260 SDL_modelist[i] = (SDL_Rect *)malloc(sizeof(SDL_Rect));
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261 if ( SDL_modelist[i] == NULL ) {
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262 break;
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263 }
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264 SDL_modelist[i]->x = 0;
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265 SDL_modelist[i]->y = 0;
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266 SDL_modelist[i]->w = modes[i]->hdisplay;
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267 SDL_modelist[i]->h = modes[i]->vdisplay;
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268 }
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269 SDL_modelist[i] = NULL;
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270 }
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271 XFree(modes);
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272
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273 use_vidmode = 1;
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274 save_mode(this);
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275 }
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276 #endif /* XFREE86_VM */
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277
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278 {
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279 static int depth_list[] = { 32, 24, 16, 15, 8 };
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280 int j, np;
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281 int use_directcolor = 1;
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282 XPixmapFormatValues *pf;
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283
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284 /* Search for the visuals in deepest-first order, so that the first
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285 will be the richest one */
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286 if ( getenv("SDL_VIDEO_X11_NODIRECTCOLOR") ) {
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287 use_directcolor = 0;
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288 }
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289 this->hidden->nvisuals = 0;
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290 if ( ! add_visual_byid(this, getenv("SDL_VIDEO_X11_VISUALID")) ) {
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291 for ( i=0; i<SDL_TABLESIZE(depth_list); ++i ) {
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292 if ( depth_list[i] > 8 ) {
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293 if ( use_directcolor ) {
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294 add_visual(this, depth_list[i], DirectColor);
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295 }
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296 add_visual(this, depth_list[i], TrueColor);
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297 } else {
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298 add_visual(this, depth_list[i], PseudoColor);
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299 add_visual(this, depth_list[i], StaticColor);
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300 }
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301 }
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302 }
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303 if ( this->hidden->nvisuals == 0 ) {
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304 SDL_SetError("Found no sufficiently capable X11 visuals");
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305 return -1;
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306 }
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307
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308 /* look up the pixel quantum for each depth */
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309 pf = XListPixmapFormats(SDL_Display, &np);
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310 for(i = 0; i < this->hidden->nvisuals; i++) {
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311 int d = this->hidden->visuals[i].depth;
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312 for(j = 0; j < np; j++)
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313 if(pf[j].depth == d)
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314 break;
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315 this->hidden->visuals[i].bpp = j < np ? pf[j].bits_per_pixel : d;
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316 }
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317
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318 XFree(pf);
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319 }
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320
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321 if ( SDL_modelist == NULL ) {
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322 SDL_modelist = (SDL_Rect **)malloc((1+1)*sizeof(SDL_Rect *));
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323 i = 0;
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324 if ( SDL_modelist ) {
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325 SDL_modelist[i] = (SDL_Rect *)malloc(sizeof(SDL_Rect));
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326 if ( SDL_modelist[i] ) {
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327 SDL_modelist[i]->x = 0;
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328 SDL_modelist[i]->y = 0;
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329 SDL_modelist[i]->w = DisplayWidth(SDL_Display, SDL_Screen);
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330 SDL_modelist[i]->h = DisplayHeight(SDL_Display, SDL_Screen);
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331 ++i;
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332 }
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333 SDL_modelist[i] = NULL;
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334 }
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335 }
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336
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337 #ifdef DEBUG_XF86
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338 if ( use_vidmode ) {
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339 fprintf(stderr, "XFree86 VidMode is enabled\n");
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340 }
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341 if ( SDL_modelist ) {
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342 fprintf(stderr, "X11 video mode list:\n");
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343 for ( i=0; SDL_modelist[i]; ++i ) {
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344 fprintf(stderr, "\t%dx%d\n",
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345 SDL_modelist[i]->w, SDL_modelist[i]->h);
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346 }
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347 }
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348 #endif /* DEBUG_XF86 */
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349 return 0;
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350 }
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351
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352 int X11_SupportedVisual(_THIS, SDL_PixelFormat *format)
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353 {
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354 int i;
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355 for(i = 0; i < this->hidden->nvisuals; i++)
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356 if(this->hidden->visuals[i].bpp == format->BitsPerPixel)
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357 return 1;
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358 return 0;
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359 }
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360
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361 SDL_Rect **X11_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags)
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362 {
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363 if ( X11_SupportedVisual(this, format) ) {
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364 if ( flags & SDL_FULLSCREEN ) {
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365 return(SDL_modelist);
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366 } else {
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367 return((SDL_Rect **)-1);
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368 }
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369 } else {
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370 return((SDL_Rect **)0);
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371 }
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372 }
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373
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374 void X11_FreeVideoModes(_THIS)
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375 {
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376 int i;
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377
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378 if ( SDL_modelist ) {
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379 for ( i=0; SDL_modelist[i]; ++i ) {
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380 free(SDL_modelist[i]);
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381 }
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382 free(SDL_modelist);
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383 SDL_modelist = NULL;
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384 }
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385 }
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386
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387 int X11_ResizeFullScreen(_THIS)
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388 {
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389 int x, y;
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390 int real_w, real_h;
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391
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392 if ( currently_fullscreen ) {
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393 /* Switch resolution and cover it with the FSwindow */
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394 move_cursor_to(this, 0, 0);
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395 set_best_resolution(this, current_w, current_h);
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396 move_cursor_to(this, 0, 0);
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397 get_real_resolution(this, &real_w, &real_h);
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398 XResizeWindow(SDL_Display, FSwindow, real_w, real_h);
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399 move_cursor_to(this, real_w/2, real_h/2);
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400
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401 /* Center and reparent the drawing window */
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402 x = (real_w - current_w)/2;
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403 y = (real_h - current_h)/2;
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404 XReparentWindow(SDL_Display, SDL_Window, FSwindow, x, y);
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405 /* FIXME: move the mouse to the old relative location */
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406 XSync(SDL_Display, True); /* Flush spurious mode change events */
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407 }
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408 return(1);
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409 }
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410
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411 void X11_QueueEnterFullScreen(_THIS)
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412 {
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413 switch_waiting = 0x01 | SDL_FULLSCREEN;
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414 switch_time = SDL_GetTicks() + 1500;
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415 #if 0 /* This causes a BadMatch error if the window is iconified (not needed) */
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416 XSetInputFocus(SDL_Display, WMwindow, RevertToNone, CurrentTime);
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417 #endif
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418 }
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419
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420 int X11_EnterFullScreen(_THIS)
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421 {
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422 int okay;
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423 #if 0
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424 Window tmpwin, *windows;
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425 int i, nwindows;
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426 #endif
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427
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428 okay = 1;
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429 if ( ! currently_fullscreen ) {
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430 int real_w, real_h;
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431
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432 /* Map the fullscreen window to blank the screen */
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433 get_real_resolution(this, &real_w, &real_h);
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434 XResizeWindow(SDL_Display, FSwindow, real_w, real_h);
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435 XMapRaised(SDL_Display, FSwindow);
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436 X11_WaitMapped(this, FSwindow);
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437
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438 #if 0 /* This seems to break WindowMaker in focus-follows-mouse mode */
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439 /* Make sure we got to the top of the window stack */
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440 if ( XQueryTree(SDL_Display, SDL_Root, &tmpwin, &tmpwin,
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441 &windows, &nwindows) && windows ) {
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442 /* If not, try to put us there - if fail... oh well */
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443 if ( windows[nwindows-1] != FSwindow ) {
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444 tmpwin = windows[nwindows-1];
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445 for ( i=0; i<nwindows; ++i ) {
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446 if ( windows[i] == FSwindow ) {
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447 memcpy(&windows[i], &windows[i+1],
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448 (nwindows-i-1)*sizeof(windows[i]));
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449 break;
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450 }
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451 }
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452 windows[nwindows-1] = FSwindow;
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453 XRestackWindows(SDL_Display, windows, nwindows);
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454 XSync(SDL_Display, False);
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455 }
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456 XFree(windows);
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457 }
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458 #else
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459 XRaiseWindow(SDL_Display, FSwindow);
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460 #endif
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461
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462 /* Grab the mouse on the fullscreen window
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463 The event handling will know when we become active, and then
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464 enter fullscreen mode if we can't grab the mouse this time.
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465 */
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466 #ifdef GRAB_FULLSCREEN
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467 if ( (XGrabPointer(SDL_Display, FSwindow, True, 0,
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468 GrabModeAsync, GrabModeAsync,
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469 FSwindow, None, CurrentTime) != GrabSuccess) ||
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470 (XGrabKeyboard(SDL_Display, WMwindow, True,
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471 GrabModeAsync, GrabModeAsync, CurrentTime) != 0) ) {
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472 #else
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473 if ( XGrabPointer(SDL_Display, FSwindow, True, 0,
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474 GrabModeAsync, GrabModeAsync,
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|
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475 FSwindow, None, CurrentTime) != GrabSuccess ) {
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|
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476 #endif
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|
|
477 /* We lost the grab, so try again later */
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|
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478 XUnmapWindow(SDL_Display, FSwindow);
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|
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479 X11_WaitUnmapped(this, FSwindow);
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|
|
480 X11_QueueEnterFullScreen(this);
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|
|
481 return(0);
|
|
|
482 }
|
|
|
483 #ifdef GRAB_FULLSCREEN
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|
|
484 SDL_PrivateAppActive(1, SDL_APPINPUTFOCUS);
|
|
|
485 #endif
|
|
|
486
|
|
|
487 #ifdef XFREE86_VM
|
|
|
488 /* Save the current video mode */
|
|
|
489 if ( use_vidmode ) {
|
|
|
490 XVidMode(LockModeSwitch, (SDL_Display, SDL_Screen, True));
|
|
|
491 }
|
|
|
492 #endif
|
|
|
493 currently_fullscreen = 1;
|
|
|
494
|
|
|
495 /* Set the new resolution */
|
|
|
496 okay = X11_ResizeFullScreen(this);
|
|
|
497 if ( ! okay ) {
|
|
|
498 X11_LeaveFullScreen(this);
|
|
|
499 }
|
|
|
500 /* Set the colormap */
|
|
|
501 if ( SDL_XColorMap ) {
|
|
|
502 XInstallColormap(SDL_Display, SDL_XColorMap);
|
|
|
503 }
|
|
|
504 }
|
|
|
505 X11_GrabInputNoLock(this, this->input_grab | SDL_GRAB_FULLSCREEN);
|
|
|
506 return(okay);
|
|
|
507 }
|
|
|
508
|
|
|
509 int X11_LeaveFullScreen(_THIS)
|
|
|
510 {
|
|
|
511 if ( currently_fullscreen ) {
|
|
|
512 XReparentWindow(SDL_Display, SDL_Window, WMwindow, 0, 0);
|
|
|
513 #ifdef XFREE86_VM
|
|
|
514 if ( use_vidmode ) {
|
|
|
515 restore_mode(this);
|
|
|
516 XVidMode(LockModeSwitch, (SDL_Display, SDL_Screen, False));
|
|
|
517 }
|
|
|
518 #endif
|
|
|
519 XUnmapWindow(SDL_Display, FSwindow);
|
|
|
520 X11_WaitUnmapped(this, FSwindow);
|
|
|
521 #ifdef GRAB_FULLSCREEN
|
|
|
522 XUngrabKeyboard(SDL_Display, CurrentTime);
|
|
|
523 #endif
|
|
|
524 XSync(SDL_Display, True); /* Flush spurious mode change events */
|
|
|
525 currently_fullscreen = 0;
|
|
|
526 }
|
|
|
527 /* If we get popped out of fullscreen mode for some reason, input_grab
|
|
|
528 will still have the SDL_GRAB_FULLSCREEN flag set, since this is only
|
|
|
529 temporary. In this case, release the grab unless the input has been
|
|
|
530 explicitly grabbed.
|
|
|
531 */
|
|
|
532 X11_GrabInputNoLock(this, this->input_grab & ~SDL_GRAB_FULLSCREEN);
|
|
|
533 return(0);
|
|
|
534 }
|
