--- /dev/null
+/*
+ * (C) GraÅžvydas "notaz" Ignotas, 2009-2011
+ *
+ * This work is licensed under the terms of any of these licenses
+ * (at your option):
+ * - GNU GPL, version 2 or later.
+ * - GNU LGPL, version 2.1 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <pthread.h>
+
+#include <dlfcn.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/XKBlib.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <termios.h>
+#include <linux/kd.h>
+
+#define PFX "xenv: "
+
+#define FPTR(f) typeof(f) * p##f
+#define FPTR_LINK(xf, dl, f) { \
+ xf.p##f = dlsym(dl, #f); \
+ if (xf.p##f == NULL) { \
+ fprintf(stderr, "missing symbol: %s\n", #f); \
+ goto fail; \
+ } \
+}
+
+struct xstuff {
+ Display *display;
+ FPTR(XCreateBitmapFromData);
+ FPTR(XCreatePixmapCursor);
+ FPTR(XFreePixmap);
+ FPTR(XOpenDisplay);
+ FPTR(XDisplayName);
+ FPTR(XCloseDisplay);
+ FPTR(XCreateSimpleWindow);
+ FPTR(XChangeWindowAttributes);
+ FPTR(XSelectInput);
+ FPTR(XMapWindow);
+ FPTR(XNextEvent);
+ FPTR(XCheckTypedEvent);
+ FPTR(XUnmapWindow);
+ FPTR(XGrabKeyboard);
+ FPTR(XPending);
+ FPTR(XLookupKeysym);
+ FPTR(XkbSetDetectableAutoRepeat);
+};
+
+static struct xstuff g_xstuff;
+
+static Cursor transparent_cursor(struct xstuff *xf, Display *display, Window win)
+{
+ Cursor cursor;
+ Pixmap pix;
+ XColor dummy;
+ char d = 0;
+
+ memset(&dummy, 0, sizeof(dummy));
+ pix = xf->pXCreateBitmapFromData(display, win, &d, 1, 1);
+ cursor = xf->pXCreatePixmapCursor(display, pix, pix,
+ &dummy, &dummy, 0, 0);
+ xf->pXFreePixmap(display, pix);
+ return cursor;
+}
+
+static int x11h_init(void)
+{
+ unsigned int display_width, display_height;
+ Display *display;
+ XSetWindowAttributes attributes;
+ Window win;
+ Visual *visual;
+ void *x11lib;
+ int screen;
+
+ memset(&g_xstuff, 0, sizeof(g_xstuff));
+ x11lib = dlopen("libX11.so.6", RTLD_LAZY);
+ if (x11lib == NULL) {
+ fprintf(stderr, "libX11.so load failed:\n%s\n", dlerror());
+ goto fail;
+ }
+ FPTR_LINK(g_xstuff, x11lib, XCreateBitmapFromData);
+ FPTR_LINK(g_xstuff, x11lib, XCreatePixmapCursor);
+ FPTR_LINK(g_xstuff, x11lib, XFreePixmap);
+ FPTR_LINK(g_xstuff, x11lib, XOpenDisplay);
+ FPTR_LINK(g_xstuff, x11lib, XDisplayName);
+ FPTR_LINK(g_xstuff, x11lib, XCloseDisplay);
+ FPTR_LINK(g_xstuff, x11lib, XCreateSimpleWindow);
+ FPTR_LINK(g_xstuff, x11lib, XChangeWindowAttributes);
+ FPTR_LINK(g_xstuff, x11lib, XSelectInput);
+ FPTR_LINK(g_xstuff, x11lib, XMapWindow);
+ FPTR_LINK(g_xstuff, x11lib, XNextEvent);
+ FPTR_LINK(g_xstuff, x11lib, XCheckTypedEvent);
+ FPTR_LINK(g_xstuff, x11lib, XUnmapWindow);
+ FPTR_LINK(g_xstuff, x11lib, XGrabKeyboard);
+ FPTR_LINK(g_xstuff, x11lib, XPending);
+ FPTR_LINK(g_xstuff, x11lib, XLookupKeysym);
+ FPTR_LINK(g_xstuff, x11lib, XkbSetDetectableAutoRepeat);
+
+ //XInitThreads();
+
+ g_xstuff.display = display = g_xstuff.pXOpenDisplay(NULL);
+ if (display == NULL)
+ {
+ fprintf(stderr, "cannot connect to X server %s, X handling disabled.\n",
+ g_xstuff.pXDisplayName(NULL));
+ goto fail2;
+ }
+
+ visual = DefaultVisual(display, 0);
+ if (visual->class != TrueColor)
+ fprintf(stderr, PFX "warning: non true color visual\n");
+
+ printf(PFX "X vendor: %s, rel: %d, display: %s, protocol ver: %d.%d\n", ServerVendor(display),
+ VendorRelease(display), DisplayString(display), ProtocolVersion(display),
+ ProtocolRevision(display));
+
+ screen = DefaultScreen(display);
+
+ display_width = DisplayWidth(display, screen);
+ display_height = DisplayHeight(display, screen);
+ printf(PFX "display is %dx%d\n", display_width, display_height);
+
+ win = g_xstuff.pXCreateSimpleWindow(display,
+ RootWindow(display, screen),
+ 0, 0, display_width, display_height, 0,
+ BlackPixel(display, screen),
+ BlackPixel(display, screen));
+
+ attributes.override_redirect = True;
+ attributes.cursor = transparent_cursor(&g_xstuff, display, win);
+ g_xstuff.pXChangeWindowAttributes(display, win, CWOverrideRedirect | CWCursor, &attributes);
+
+ g_xstuff.pXSelectInput(display, win, ExposureMask | FocusChangeMask | KeyPressMask | KeyReleaseMask);
+ g_xstuff.pXMapWindow(display, win);
+ g_xstuff.pXGrabKeyboard(display, win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
+ g_xstuff.pXkbSetDetectableAutoRepeat(display, 1, NULL);
+ // XSetIOErrorHandler
+
+ return 0;
+fail2:
+ dlclose(x11lib);
+fail:
+ g_xstuff.display = NULL;
+ fprintf(stderr, "x11 handling disabled.\n");
+ return -1;
+}
+
+static int x11h_update(int *is_down)
+{
+ XEvent evt;
+
+ while (g_xstuff.pXPending(g_xstuff.display))
+ {
+ g_xstuff.pXNextEvent(g_xstuff.display, &evt);
+ switch (evt.type)
+ {
+ case Expose:
+ while (g_xstuff.pXCheckTypedEvent(g_xstuff.display, Expose, &evt))
+ ;
+ break;
+
+ case KeyPress:
+ *is_down = 1;
+ return g_xstuff.pXLookupKeysym(&evt.xkey, 0);
+
+ case KeyRelease:
+ *is_down = 0;
+ return g_xstuff.pXLookupKeysym(&evt.xkey, 0);
+ // printf("press %d\n", evt.xkey.keycode);
+ }
+ }
+
+ return NoSymbol;
+}
+
+static struct termios g_kbd_termios_saved;
+static int g_kbdfd = -1;
+
+static int tty_init(void)
+{
+ struct termios kbd_termios;
+ int mode;
+
+ g_kbdfd = open("/dev/tty", O_RDWR);
+ if (g_kbdfd == -1) {
+ perror(PFX "open /dev/tty");
+ return -1;
+ }
+
+ if (ioctl(g_kbdfd, KDGETMODE, &mode) == -1) {
+ perror(PFX "(not hiding FB): KDGETMODE");
+ goto fail;
+ }
+
+ if (tcgetattr(g_kbdfd, &kbd_termios) == -1) {
+ perror(PFX "tcgetattr");
+ goto fail;
+ }
+
+ g_kbd_termios_saved = kbd_termios;
+ kbd_termios.c_lflag &= ~(ICANON | ECHO); // | ISIG);
+ kbd_termios.c_iflag &= ~(ISTRIP | IGNCR | ICRNL | INLCR | IXOFF | IXON);
+ kbd_termios.c_cc[VMIN] = 0;
+ kbd_termios.c_cc[VTIME] = 0;
+
+ if (tcsetattr(g_kbdfd, TCSAFLUSH, &kbd_termios) == -1) {
+ perror(PFX "tcsetattr");
+ goto fail;
+ }
+
+ if (ioctl(g_kbdfd, KDSETMODE, KD_GRAPHICS) == -1) {
+ perror(PFX "KDSETMODE KD_GRAPHICS");
+ tcsetattr(g_kbdfd, TCSAFLUSH, &g_kbd_termios_saved);
+ goto fail;
+ }
+
+ return 0;
+
+fail:
+ close(g_kbdfd);
+ g_kbdfd = -1;
+ return -1;
+}
+
+static void tty_end(void)
+{
+ if (g_kbdfd < 0)
+ return;
+
+ if (ioctl(g_kbdfd, KDSETMODE, KD_TEXT) == -1)
+ perror(PFX "KDSETMODE KD_TEXT");
+
+ if (tcsetattr(g_kbdfd, TCSAFLUSH, &g_kbd_termios_saved) == -1)
+ perror(PFX "tcsetattr");
+
+ close(g_kbdfd);
+ g_kbdfd = -1;
+}
+
+int xenv_init(void)
+{
+ int ret;
+
+ ret = x11h_init();
+ if (ret == 0)
+ return 0;
+
+ ret = tty_init();
+ if (ret == 0)
+ return 0;
+
+ fprintf(stderr, PFX "error: both x11h_init and tty_init failed\n");
+ return -1;
+}
+
+int xenv_update(int *is_down)
+{
+ if (g_xstuff.display)
+ return x11h_update(is_down);
+
+ // TODO: read tty?
+ return -1;
+}
+
+void xenv_finish(void)
+{
+ // TODO: cleanup X?
+ tty_end();
+}
notaz.gp2x.de / pcsx_rearmed.git / blobdiff