int
X11_InitKeyboard(_THIS)
{
SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
int i = 0;
int j = 0;
int min_keycode, max_keycode;
struct {
SDL_Scancode scancode;
KeySym keysym;
int value;
} fingerprint[] = {
{ SDL_SCANCODE_HOME, XK_Home, 0 },
{ SDL_SCANCODE_PAGEUP, XK_Prior, 0 },
{ SDL_SCANCODE_UP, XK_Up, 0 },
{ SDL_SCANCODE_LEFT, XK_Left, 0 },
{ SDL_SCANCODE_DELETE, XK_Delete, 0 },
{ SDL_SCANCODE_KP_ENTER, XK_KP_Enter, 0 },
};
int best_distance;
int best_index;
int distance;
BOOL xkb_repeat = 0;
X11_XAutoRepeatOn(data->display);
#if SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM
{
int xkb_major = XkbMajorVersion;
int xkb_minor = XkbMinorVersion;
if (X11_XkbQueryExtension(data->display, NULL, NULL, NULL, &xkb_major, &xkb_minor)) {
data->xkb = X11_XkbGetMap(data->display, XkbAllClientInfoMask, XkbUseCoreKbd);
}
/* This will remove KeyRelease events for held keys */
X11_XkbSetDetectableAutoRepeat(data->display, True, &xkb_repeat);
}
#endif
/* Open a connection to the X input manager */
#ifdef X_HAVE_UTF8_STRING
if (SDL_X11_HAVE_UTF8) {
/* Set the locale, and call XSetLocaleModifiers before XOpenIM so that
Compose keys will work correctly. */
char *prev_locale = setlocale(LC_ALL, NULL);
char *prev_xmods = X11_XSetLocaleModifiers(NULL);
const char *new_xmods = "";
#if defined(HAVE_IBUS_IBUS_H) || defined(HAVE_FCITX_FRONTEND_H)
const char *env_xmods = SDL_getenv("XMODIFIERS");
#endif
SDL_bool has_dbus_ime_support = SDL_FALSE;
if (prev_locale) {
prev_locale = SDL_strdup(prev_locale);
}
if (prev_xmods) {
prev_xmods = SDL_strdup(prev_xmods);
}
/* IBus resends some key events that were filtered by XFilterEvents
when it is used via XIM which causes issues. Prevent this by forcing
@im=none if XMODIFIERS contains @im=ibus. IBus can still be used via
the DBus implementation, which also has support for pre-editing. */
#ifdef HAVE_IBUS_IBUS_H
if (env_xmods && SDL_strstr(env_xmods, "@im=ibus") != NULL) {
has_dbus_ime_support = SDL_TRUE;
}
#endif
#ifdef HAVE_FCITX_FRONTEND_H
if (env_xmods && SDL_strstr(env_xmods, "@im=fcitx") != NULL) {
has_dbus_ime_support = SDL_TRUE;
}
#endif
if (has_dbus_ime_support || !xkb_repeat) {
new_xmods = "@im=none";
}
setlocale(LC_ALL, "");
X11_XSetLocaleModifiers(new_xmods);
data->im = X11_XOpenIM(data->display, NULL, data->classname, data->classname);
/* Reset the locale + X locale modifiers back to how they were,
locale first because the X locale modifiers depend on it. */
setlocale(LC_ALL, prev_locale);
X11_XSetLocaleModifiers(prev_xmods);
if (prev_locale) {
SDL_free(prev_locale);
}
if (prev_xmods) {
SDL_free(prev_xmods);
}
}
#endif
/* Try to determine which scancodes are being used based on fingerprint */
best_distance = SDL_arraysize(fingerprint) + 1;
best_index = -1;
X11_XDisplayKeycodes(data->display, &min_keycode, &max_keycode);
for (i = 0; i < SDL_arraysize(fingerprint); ++i) {
fingerprint[i].value =
X11_XKeysymToKeycode(data->display, fingerprint[i].keysym) -
min_keycode;
}
for (i = 0; i < SDL_arraysize(scancode_set); ++i) {
/* Make sure the scancode set isn't too big */
if ((max_keycode - min_keycode + 1) <= scancode_set[i].table_size) {
continue;
}
distance = 0;
for (j = 0; j < SDL_arraysize(fingerprint); ++j) {
if (fingerprint[j].value < 0
|| fingerprint[j].value >= scancode_set[i].table_size) {
distance += 1;
} else if (scancode_set[i].table[fingerprint[j].value] != fingerprint[j].scancode) {
distance += 1;
}
}
if (distance < best_distance) {
best_distance = distance;
best_index = i;
}
}
if (best_index >= 0 && best_distance <= 2) {
#ifdef DEBUG_KEYBOARD
printf("Using scancode set %d, min_keycode = %d, max_keycode = %d, table_size = %d\n", best_index, min_keycode, max_keycode, scancode_set[best_index].table_size);
#endif
SDL_memcpy(&data->key_layout[min_keycode], scancode_set[best_index].table,
sizeof(SDL_Scancode) * scancode_set[best_index].table_size);
} else {
SDL_Keycode keymap[SDL_NUM_SCANCODES];
printf
("Keyboard layout unknown, please send the following to the SDL mailing list ([email protected]):\n");
/* Determine key_layout - only works on US QWERTY layout */
SDL_GetDefaultKeymap(keymap);
for (i = min_keycode; i <= max_keycode; ++i) {
KeySym sym;
sym = X11_KeyCodeToSym(_this, (KeyCode) i, 0);
if (sym != NoSymbol) {
SDL_Scancode scancode;
printf("code = %d, sym = 0x%X (%s) ", i - min_keycode,
(unsigned int) sym, X11_XKeysymToString(sym));
scancode = X11_KeyCodeToSDLScancode(_this, i);
data->key_layout[i] = scancode;
if (scancode == SDL_SCANCODE_UNKNOWN) {
printf("scancode not found\n");
} else {
printf("scancode = %d (%s)\n", scancode, SDL_GetScancodeName(scancode));
}
}
}
}
X11_UpdateKeymap(_this);
SDL_SetScancodeName(SDL_SCANCODE_APPLICATION, "Menu");
#ifdef SDL_USE_IME
SDL_IME_Init();
#endif
return 0;
}
int
X11_InitKeyboard(_THIS)
{
SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
int i = 0;
int j = 0;
int min_keycode, max_keycode;
struct {
SDL_Scancode scancode;
KeySym keysym;
int value;
} fingerprint[] = {
{ SDL_SCANCODE_HOME, XK_Home, 0 },
{ SDL_SCANCODE_PAGEUP, XK_Prior, 0 },
{ SDL_SCANCODE_UP, XK_Up, 0 },
{ SDL_SCANCODE_LEFT, XK_Left, 0 },
{ SDL_SCANCODE_DELETE, XK_Delete, 0 },
{ SDL_SCANCODE_KP_ENTER, XK_KP_Enter, 0 },
};
int best_distance;
int best_index;
int distance;
X11_XAutoRepeatOn(data->display);
#if SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM
{
int xkb_major = XkbMajorVersion;
int xkb_minor = XkbMinorVersion;
if (X11_XkbQueryExtension(data->display, NULL, NULL, NULL, &xkb_major, &xkb_minor)) {
data->xkb = X11_XkbGetMap(data->display, XkbAllClientInfoMask, XkbUseCoreKbd);
}
}
#endif
/* Try to determine which scancodes are being used based on fingerprint */
best_distance = SDL_arraysize(fingerprint) + 1;
best_index = -1;
X11_XDisplayKeycodes(data->display, &min_keycode, &max_keycode);
for (i = 0; i < SDL_arraysize(fingerprint); ++i) {
fingerprint[i].value =
X11_XKeysymToKeycode(data->display, fingerprint[i].keysym) -
min_keycode;
}
for (i = 0; i < SDL_arraysize(scancode_set); ++i) {
/* Make sure the scancode set isn't too big */
if ((max_keycode - min_keycode + 1) <= scancode_set[i].table_size) {
continue;
}
distance = 0;
for (j = 0; j < SDL_arraysize(fingerprint); ++j) {
if (fingerprint[j].value < 0
|| fingerprint[j].value >= scancode_set[i].table_size) {
distance += 1;
} else if (scancode_set[i].table[fingerprint[j].value] != fingerprint[j].scancode) {
distance += 1;
}
}
if (distance < best_distance) {
best_distance = distance;
best_index = i;
}
}
if (best_index >= 0 && best_distance <= 2) {
#ifdef DEBUG_KEYBOARD
printf("Using scancode set %d, min_keycode = %d, max_keycode = %d, table_size = %d\n", best_index, min_keycode, max_keycode, scancode_set[best_index].table_size);
#endif
SDL_memcpy(&data->key_layout[min_keycode], scancode_set[best_index].table,
sizeof(SDL_Scancode) * scancode_set[best_index].table_size);
} else {
SDL_Keycode keymap[SDL_NUM_SCANCODES];
printf
("Keyboard layout unknown, please send the following to the SDL mailing list ([email protected]):\n");
/* Determine key_layout - only works on US QWERTY layout */
SDL_GetDefaultKeymap(keymap);
for (i = min_keycode; i <= max_keycode; ++i) {
KeySym sym;
sym = X11_KeyCodeToSym(_this, (KeyCode) i, 0);
if (sym != NoSymbol) {
SDL_Scancode scancode;
printf("code = %d, sym = 0x%X (%s) ", i - min_keycode,
(unsigned int) sym, X11_XKeysymToString(sym));
scancode = X11_KeyCodeToSDLScancode(_this, i);
data->key_layout[i] = scancode;
if (scancode == SDL_SCANCODE_UNKNOWN) {
printf("scancode not found\n");
} else {
printf("scancode = %d (%s)\n", scancode, SDL_GetScancodeName(scancode));
}
}
}
}
X11_UpdateKeymap(_this);
SDL_SetScancodeName(SDL_SCANCODE_APPLICATION, "Menu");
#ifdef SDL_USE_IME
SDL_IME_Init();
#endif
return 0;
}
