2 * (C) GraÅžvydas "notaz" Ignotas, 2009-2012
4 * This work is licensed under the terms of any of these licenses
6 * - GNU GPL, version 2 or later.
7 * - GNU LGPL, version 2.1 or later.
8 * See the COPYING file in the top-level directory.
17 #include <X11/Xutil.h>
18 #include <X11/XKBlib.h>
20 #include <sys/types.h>
24 #include <sys/ioctl.h>
30 #define FPTR(f) typeof(f) * p##f
31 #define FPTR_LINK(xf, dl, f) { \
32 xf.p##f = dlsym(dl, #f); \
33 if (xf.p##f == NULL) { \
34 fprintf(stderr, "missing symbol: %s\n", #f); \
41 FPTR(XCreateBitmapFromData);
42 FPTR(XCreatePixmapCursor);
47 FPTR(XCreateSimpleWindow);
48 FPTR(XChangeWindowAttributes);
52 FPTR(XCheckTypedEvent);
57 FPTR(XkbSetDetectableAutoRepeat);
60 static struct xstuff g_xstuff;
62 static Cursor transparent_cursor(struct xstuff *xf, Display *display, Window win)
69 memset(&dummy, 0, sizeof(dummy));
70 pix = xf->pXCreateBitmapFromData(display, win, &d, 1, 1);
71 cursor = xf->pXCreatePixmapCursor(display, pix, pix,
72 &dummy, &dummy, 0, 0);
73 xf->pXFreePixmap(display, pix);
77 static int x11h_init(void)
79 unsigned int display_width, display_height;
81 XSetWindowAttributes attributes;
87 memset(&g_xstuff, 0, sizeof(g_xstuff));
88 x11lib = dlopen("libX11.so.6", RTLD_LAZY);
90 fprintf(stderr, "libX11.so load failed:\n%s\n", dlerror());
93 FPTR_LINK(g_xstuff, x11lib, XCreateBitmapFromData);
94 FPTR_LINK(g_xstuff, x11lib, XCreatePixmapCursor);
95 FPTR_LINK(g_xstuff, x11lib, XFreePixmap);
96 FPTR_LINK(g_xstuff, x11lib, XOpenDisplay);
97 FPTR_LINK(g_xstuff, x11lib, XDisplayName);
98 FPTR_LINK(g_xstuff, x11lib, XCloseDisplay);
99 FPTR_LINK(g_xstuff, x11lib, XCreateSimpleWindow);
100 FPTR_LINK(g_xstuff, x11lib, XChangeWindowAttributes);
101 FPTR_LINK(g_xstuff, x11lib, XSelectInput);
102 FPTR_LINK(g_xstuff, x11lib, XMapWindow);
103 FPTR_LINK(g_xstuff, x11lib, XNextEvent);
104 FPTR_LINK(g_xstuff, x11lib, XCheckTypedEvent);
105 FPTR_LINK(g_xstuff, x11lib, XUnmapWindow);
106 FPTR_LINK(g_xstuff, x11lib, XGrabKeyboard);
107 FPTR_LINK(g_xstuff, x11lib, XPending);
108 FPTR_LINK(g_xstuff, x11lib, XLookupKeysym);
109 FPTR_LINK(g_xstuff, x11lib, XkbSetDetectableAutoRepeat);
113 g_xstuff.display = display = g_xstuff.pXOpenDisplay(NULL);
116 fprintf(stderr, "cannot connect to X server %s, X handling disabled.\n",
117 g_xstuff.pXDisplayName(NULL));
121 visual = DefaultVisual(display, 0);
122 if (visual->class != TrueColor)
123 fprintf(stderr, PFX "warning: non true color visual\n");
125 printf(PFX "X vendor: %s, rel: %d, display: %s, protocol ver: %d.%d\n", ServerVendor(display),
126 VendorRelease(display), DisplayString(display), ProtocolVersion(display),
127 ProtocolRevision(display));
129 screen = DefaultScreen(display);
131 display_width = DisplayWidth(display, screen);
132 display_height = DisplayHeight(display, screen);
133 printf(PFX "display is %dx%d\n", display_width, display_height);
135 win = g_xstuff.pXCreateSimpleWindow(display,
136 RootWindow(display, screen),
137 0, 0, display_width, display_height, 0,
138 BlackPixel(display, screen),
139 BlackPixel(display, screen));
141 attributes.override_redirect = True;
142 attributes.cursor = transparent_cursor(&g_xstuff, display, win);
143 g_xstuff.pXChangeWindowAttributes(display, win, CWOverrideRedirect | CWCursor, &attributes);
145 g_xstuff.pXSelectInput(display, win, ExposureMask | FocusChangeMask | KeyPressMask
146 | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask);
147 g_xstuff.pXMapWindow(display, win);
148 g_xstuff.pXGrabKeyboard(display, win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
149 g_xstuff.pXkbSetDetectableAutoRepeat(display, 1, NULL);
150 // XSetIOErrorHandler
156 g_xstuff.display = NULL;
157 fprintf(stderr, "x11 handling disabled.\n");
161 static void x11h_update(int (*key_cb)(void *cb_arg, int kc, int is_pressed),
162 int (*mouseb_cb)(void *cb_arg, int x, int y, int button, int is_pressed),
163 int (*mousem_cb)(void *cb_arg, int x, int y),
169 while (g_xstuff.pXPending(g_xstuff.display))
171 g_xstuff.pXNextEvent(g_xstuff.display, &evt);
175 while (g_xstuff.pXCheckTypedEvent(g_xstuff.display, Expose, &evt))
180 keysym = g_xstuff.pXLookupKeysym(&evt.xkey, 0);
182 key_cb(cb_arg, keysym, 1);
186 keysym = g_xstuff.pXLookupKeysym(&evt.xkey, 0);
188 key_cb(cb_arg, keysym, 0);
192 if (mouseb_cb != NULL)
193 mouseb_cb(cb_arg, evt.xbutton.x, evt.xbutton.y,
194 evt.xbutton.button, 1);
198 if (mouseb_cb != NULL)
199 mouseb_cb(cb_arg, evt.xbutton.x, evt.xbutton.y,
200 evt.xbutton.button, 0);
204 if (mousem_cb != NULL)
205 mousem_cb(cb_arg, evt.xmotion.x, evt.xmotion.y);
211 static struct termios g_kbd_termios_saved;
212 static int g_kbdfd = -1;
214 static int tty_init(void)
216 struct termios kbd_termios;
219 g_kbdfd = open("/dev/tty", O_RDWR);
221 perror(PFX "open /dev/tty");
225 if (ioctl(g_kbdfd, KDGETMODE, &mode) == -1) {
226 perror(PFX "(not hiding FB): KDGETMODE");
230 if (tcgetattr(g_kbdfd, &kbd_termios) == -1) {
231 perror(PFX "tcgetattr");
235 g_kbd_termios_saved = kbd_termios;
236 kbd_termios.c_lflag &= ~(ICANON | ECHO); // | ISIG);
237 kbd_termios.c_iflag &= ~(ISTRIP | IGNCR | ICRNL | INLCR | IXOFF | IXON);
238 kbd_termios.c_cc[VMIN] = 0;
239 kbd_termios.c_cc[VTIME] = 0;
241 if (tcsetattr(g_kbdfd, TCSAFLUSH, &kbd_termios) == -1) {
242 perror(PFX "tcsetattr");
246 if (ioctl(g_kbdfd, KDSETMODE, KD_GRAPHICS) == -1) {
247 perror(PFX "KDSETMODE KD_GRAPHICS");
248 tcsetattr(g_kbdfd, TCSAFLUSH, &g_kbd_termios_saved);
260 static void tty_end(void)
265 if (ioctl(g_kbdfd, KDSETMODE, KD_TEXT) == -1)
266 perror(PFX "KDSETMODE KD_TEXT");
268 if (tcsetattr(g_kbdfd, TCSAFLUSH, &g_kbd_termios_saved) == -1)
269 perror(PFX "tcsetattr");
275 int xenv_init(int *have_mouse_events)
290 fprintf(stderr, PFX "error: both x11h_init and tty_init failed\n");
293 if (have_mouse_events != NULL)
294 *have_mouse_events = have_mouse;
298 int xenv_update(int (*key_cb)(void *cb_arg, int kc, int is_pressed),
299 int (*mouseb_cb)(void *cb_arg, int x, int y, int button, int is_pressed),
300 int (*mousem_cb)(void *cb_arg, int x, int y),
303 if (g_xstuff.display) {
304 x11h_update(key_cb, mouseb_cb, mousem_cb, cb_arg);
312 void xenv_finish(void)