| 1 | /* |
| 2 | |
| 3 | Copyright 1993 by Davor Matic |
| 4 | |
| 5 | Permission to use, copy, modify, distribute, and sell this software |
| 6 | and its documentation for any purpose is hereby granted without fee, |
| 7 | provided that the above copyright notice appear in all copies and that |
| 8 | both that copyright notice and this permission notice appear in |
| 9 | supporting documentation. Davor Matic makes no representations about |
| 10 | the suitability of this software for any purpose. It is provided "as |
| 11 | is" without express or implied warranty. |
| 12 | |
| 13 | */ |
| 14 | |
| 15 | #ifdef HAVE_XNEST_CONFIG_H |
| 16 | #include <xnest-config.h> |
| 17 | #endif |
| 18 | |
| 19 | #include <string.h> |
| 20 | #include <errno.h> |
| 21 | |
| 22 | #include <X11/X.h> |
| 23 | #include <X11/Xproto.h> |
| 24 | #include "screenint.h" |
| 25 | #include "input.h" |
| 26 | #include "misc.h" |
| 27 | #include "scrnintstr.h" |
| 28 | #include "servermd.h" |
| 29 | |
| 30 | #include "Xnest.h" |
| 31 | |
| 32 | #include "Display.h" |
| 33 | #include "Init.h" |
| 34 | #include "Args.h" |
| 35 | |
| 36 | #include "icon" |
| 37 | #include "screensaver" |
| 38 | |
| 39 | Display *xnestDisplay = NULL; |
| 40 | XVisualInfo *xnestVisuals; |
| 41 | int xnestNumVisuals; |
| 42 | int xnestDefaultVisualIndex; |
| 43 | Colormap *xnestDefaultColormaps; |
| 44 | static int xnestNumDefaultColormaps; |
| 45 | int *xnestDepths; |
| 46 | int xnestNumDepths; |
| 47 | XPixmapFormatValues *xnestPixmapFormats; |
| 48 | int xnestNumPixmapFormats; |
| 49 | Pixel xnestBlackPixel; |
| 50 | Pixel xnestWhitePixel; |
| 51 | Drawable xnestDefaultDrawables[MAXDEPTH + 1]; |
| 52 | Pixmap xnestIconBitmap; |
| 53 | Pixmap xnestScreenSaverPixmap; |
| 54 | XlibGC xnestBitmapGC; |
| 55 | unsigned long xnestEventMask; |
| 56 | |
| 57 | #ifdef __SUNPRO_C |
| 58 | /* prevent "Function has no return statement" error for x_io_error_handler */ |
| 59 | #pragma does_not_return(exit) |
| 60 | #endif |
| 61 | |
| 62 | static int _X_NORETURN |
| 63 | x_io_error_handler(Display * dpy) |
| 64 | { |
| 65 | ErrorF("Lost connection to X server: %s\n", strerror(errno)); |
| 66 | CloseWellKnownConnections(); |
| 67 | OsCleanup(1); |
| 68 | exit(1); |
| 69 | } |
| 70 | |
| 71 | void |
| 72 | xnestOpenDisplay(int argc, char *argv[]) |
| 73 | { |
| 74 | XVisualInfo vi; |
| 75 | long mask; |
| 76 | int i, j; |
| 77 | |
| 78 | if (!xnestDoFullGeneration) |
| 79 | return; |
| 80 | |
| 81 | XSetIOErrorHandler(x_io_error_handler); |
| 82 | |
| 83 | xnestCloseDisplay(); |
| 84 | |
| 85 | xnestDisplay = XOpenDisplay(xnestDisplayName); |
| 86 | if (xnestDisplay == NULL) |
| 87 | FatalError("Unable to open display \"%s\".\n", |
| 88 | XDisplayName(xnestDisplayName)); |
| 89 | |
| 90 | if (xnestSynchronize) |
| 91 | XSynchronize(xnestDisplay, True); |
| 92 | |
| 93 | mask = VisualScreenMask; |
| 94 | vi.screen = DefaultScreen(xnestDisplay); |
| 95 | xnestVisuals = XGetVisualInfo(xnestDisplay, mask, &vi, &xnestNumVisuals); |
| 96 | if (xnestNumVisuals == 0 || xnestVisuals == NULL) |
| 97 | FatalError("Unable to find any visuals.\n"); |
| 98 | |
| 99 | if (xnestUserDefaultClass || xnestUserDefaultDepth) { |
| 100 | xnestDefaultVisualIndex = UNDEFINED; |
| 101 | for (i = 0; i < xnestNumVisuals; i++) |
| 102 | if ((!xnestUserDefaultClass || |
| 103 | xnestVisuals[i].class == xnestDefaultClass) |
| 104 | && |
| 105 | (!xnestUserDefaultDepth || |
| 106 | xnestVisuals[i].depth == xnestDefaultDepth)) { |
| 107 | xnestDefaultVisualIndex = i; |
| 108 | break; |
| 109 | } |
| 110 | if (xnestDefaultVisualIndex == UNDEFINED) |
| 111 | FatalError("Unable to find desired default visual.\n"); |
| 112 | } |
| 113 | else { |
| 114 | vi.visualid = XVisualIDFromVisual(DefaultVisual(xnestDisplay, |
| 115 | DefaultScreen |
| 116 | (xnestDisplay))); |
| 117 | xnestDefaultVisualIndex = 0; |
| 118 | for (i = 0; i < xnestNumVisuals; i++) |
| 119 | if (vi.visualid == xnestVisuals[i].visualid) |
| 120 | xnestDefaultVisualIndex = i; |
| 121 | } |
| 122 | |
| 123 | xnestNumDefaultColormaps = xnestNumVisuals; |
| 124 | xnestDefaultColormaps = (Colormap *) malloc(xnestNumDefaultColormaps * |
| 125 | sizeof(Colormap)); |
| 126 | for (i = 0; i < xnestNumDefaultColormaps; i++) |
| 127 | xnestDefaultColormaps[i] = XCreateColormap(xnestDisplay, |
| 128 | DefaultRootWindow |
| 129 | (xnestDisplay), |
| 130 | xnestVisuals[i].visual, |
| 131 | AllocNone); |
| 132 | |
| 133 | xnestDepths = XListDepths(xnestDisplay, DefaultScreen(xnestDisplay), |
| 134 | &xnestNumDepths); |
| 135 | |
| 136 | xnestPixmapFormats = XListPixmapFormats(xnestDisplay, |
| 137 | &xnestNumPixmapFormats); |
| 138 | |
| 139 | xnestBlackPixel = BlackPixel(xnestDisplay, DefaultScreen(xnestDisplay)); |
| 140 | xnestWhitePixel = WhitePixel(xnestDisplay, DefaultScreen(xnestDisplay)); |
| 141 | |
| 142 | if (xnestParentWindow != (Window) 0) |
| 143 | xnestEventMask = StructureNotifyMask; |
| 144 | else |
| 145 | xnestEventMask = 0L; |
| 146 | |
| 147 | for (i = 0; i <= MAXDEPTH; i++) |
| 148 | xnestDefaultDrawables[i] = None; |
| 149 | |
| 150 | for (i = 0; i < xnestNumPixmapFormats; i++) |
| 151 | for (j = 0; j < xnestNumDepths; j++) |
| 152 | if (xnestPixmapFormats[i].depth == 1 || |
| 153 | xnestPixmapFormats[i].depth == xnestDepths[j]) { |
| 154 | xnestDefaultDrawables[xnestPixmapFormats[i].depth] = |
| 155 | XCreatePixmap(xnestDisplay, DefaultRootWindow(xnestDisplay), |
| 156 | 1, 1, xnestPixmapFormats[i].depth); |
| 157 | } |
| 158 | |
| 159 | xnestBitmapGC = XCreateGC(xnestDisplay, xnestDefaultDrawables[1], 0L, NULL); |
| 160 | |
| 161 | if (!(xnestUserGeometry & XValue)) |
| 162 | xnestX = 0; |
| 163 | |
| 164 | if (!(xnestUserGeometry & YValue)) |
| 165 | xnestY = 0; |
| 166 | |
| 167 | if (xnestParentWindow == 0) { |
| 168 | if (!(xnestUserGeometry & WidthValue)) |
| 169 | xnestWidth = 3 * DisplayWidth(xnestDisplay, |
| 170 | DefaultScreen(xnestDisplay)) / 4; |
| 171 | |
| 172 | if (!(xnestUserGeometry & HeightValue)) |
| 173 | xnestHeight = 3 * DisplayHeight(xnestDisplay, |
| 174 | DefaultScreen(xnestDisplay)) / 4; |
| 175 | } |
| 176 | |
| 177 | if (!xnestUserBorderWidth) |
| 178 | xnestBorderWidth = 1; |
| 179 | |
| 180 | xnestIconBitmap = |
| 181 | XCreateBitmapFromData(xnestDisplay, |
| 182 | DefaultRootWindow(xnestDisplay), |
| 183 | (char *) icon_bits, icon_width, icon_height); |
| 184 | |
| 185 | xnestScreenSaverPixmap = |
| 186 | XCreatePixmapFromBitmapData(xnestDisplay, |
| 187 | DefaultRootWindow(xnestDisplay), |
| 188 | (char *) screensaver_bits, |
| 189 | screensaver_width, |
| 190 | screensaver_height, |
| 191 | xnestWhitePixel, |
| 192 | xnestBlackPixel, |
| 193 | DefaultDepth(xnestDisplay, |
| 194 | DefaultScreen(xnestDisplay))); |
| 195 | } |
| 196 | |
| 197 | void |
| 198 | xnestCloseDisplay(void) |
| 199 | { |
| 200 | if (!xnestDoFullGeneration || !xnestDisplay) |
| 201 | return; |
| 202 | |
| 203 | /* |
| 204 | If xnestDoFullGeneration all x resources will be destroyed upon closing |
| 205 | the display connection. There is no need to generate extra protocol. |
| 206 | */ |
| 207 | |
| 208 | free(xnestDefaultColormaps); |
| 209 | XFree(xnestVisuals); |
| 210 | XFree(xnestDepths); |
| 211 | XFree(xnestPixmapFormats); |
| 212 | XCloseDisplay(xnestDisplay); |
| 213 | } |