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SDL2/0004-evdev_kbd-Use-current-keymap.patch
Jan Engelhardt 8215a60eb9 Accepting request 1069323 from home:michals 
- Use current keypap on console https://github.com/libsdl-org/SDL/pull/7400
  + 0001-Cleanup-add-brace-6545.patch
  + 0002-Update-for-SDL3-coding-style-6717.patch
  + 0003-Clang-Tidy-fixes-6725.patch
  + 0004-evdev_kbd-Use-current-keymap.patch

OBS-URL: https://build.opensuse.org/request/show/1069323
OBS-URL: https://build.opensuse.org/package/show/games/SDL2?expand=0&rev=153
2023-03-03 23:27:41 +00:00

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From 96a2a6b94515c5a0c920d5ffd64bf83acb74d7a8 Mon Sep 17 00:00:00 2001
From: Michal Suchanek <msuchanek@suse.de>
Date: Fri, 3 Mar 2023 19:44:11 +0100
Subject: [PATCH] evdev_kbd: Use current keymap
keymap can change over time, caching the keymap causes wrong keys
returned when user changes keymap during runtime
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
---
src/core/linux/SDL_evdev_kbd.c | 126 ++++++++++++---------------------
1 file changed, 47 insertions(+), 79 deletions(-)
diff --git a/src/core/linux/SDL_evdev_kbd.c b/src/core/linux/SDL_evdev_kbd.c
index f7ccca7ef..6535fdfc8 100644
--- a/src/core/linux/SDL_evdev_kbd.c
+++ b/src/core/linux/SDL_evdev_kbd.c
@@ -153,45 +153,6 @@ static void SDL_EVDEV_dump_keymap(SDL_EVDEV_keyboard_state *kbd)
}
#endif /* DUMP_KEYMAP */
-static int SDL_EVDEV_kbd_load_keymaps(SDL_EVDEV_keyboard_state *kbd)
-{
- int i, j;
-
- kbd->key_maps = (unsigned short **)SDL_calloc(MAX_NR_KEYMAPS, sizeof(unsigned short *));
- if (!kbd->key_maps) {
- return -1;
- }
-
- for (i = 0; i < MAX_NR_KEYMAPS; ++i) {
- struct kbentry kbe;
-
- kbe.kb_table = i;
- kbe.kb_index = 0;
- if (ioctl(kbd->console_fd, KDGKBENT, &kbe) < 0) {
- return -1;
- }
-
- if (kbe.kb_value == K_NOSUCHMAP) {
- continue;
- }
-
- kbd->key_maps[i] = (unsigned short *)SDL_malloc(NR_KEYS * sizeof(unsigned short));
- if (!kbd->key_maps[i]) {
- return -1;
- }
-
- for (j = 0; j < NR_KEYS; ++j) {
- kbe.kb_table = i;
- kbe.kb_index = j;
- if (ioctl(kbd->console_fd, KDGKBENT, &kbe) < 0) {
- return -1;
- }
- kbd->key_maps[i][j] = (kbe.kb_value ^ 0xf000);
- }
- }
- return 0;
-}
-
static SDL_EVDEV_keyboard_state *kbd_cleanup_state = NULL;
static int kbd_cleanup_sigactions_installed = 0;
static int kbd_cleanup_atexit_installed = 0;
@@ -339,8 +300,8 @@ SDL_EVDEV_keyboard_state *
SDL_EVDEV_kbd_init(void)
{
SDL_EVDEV_keyboard_state *kbd;
- int i;
char flag_state;
+ char kbtype;
char shift_state[sizeof(long)] = { TIOCL_GETSHIFTSTATE, 0 };
kbd = (SDL_EVDEV_keyboard_state *)SDL_calloc(1, sizeof(*kbd));
@@ -348,10 +309,14 @@ SDL_EVDEV_kbd_init(void)
return NULL;
}
- kbd->npadch = -1;
-
/* This might fail if we're not connected to a tty (e.g. on the Steam Link) */
kbd->console_fd = open("/dev/tty", O_RDONLY | O_CLOEXEC);
+ if (!((ioctl(kbd->console_fd, KDGKBTYPE, &kbtype) == 0) && ((kbtype == KB_101) || (kbtype == KB_84)))) {
+ close(kbd->console_fd);
+ kbd->console_fd = -1;
+ }
+
+ kbd->npadch = -1;
if (ioctl(kbd->console_fd, TIOCLINUX, shift_state) == 0) {
kbd->shift_state = *shift_state;
@@ -362,48 +327,27 @@ SDL_EVDEV_kbd_init(void)
}
kbd->accents = &default_accents;
- if (ioctl(kbd->console_fd, KDGKBDIACR, kbd->accents) < 0) {
- /* No worries, we'll use the default accent table */
- }
-
kbd->key_maps = default_key_maps;
+
if (ioctl(kbd->console_fd, KDGKBMODE, &kbd->old_kbd_mode) == 0) {
/* Set the keyboard in UNICODE mode and load the keymaps */
ioctl(kbd->console_fd, KDSKBMODE, K_UNICODE);
+ }
- if (SDL_EVDEV_kbd_load_keymaps(kbd) < 0) {
- for (i = 0; i < MAX_NR_KEYMAPS; ++i) {
- if (kbd->key_maps[i]) {
- SDL_free(kbd->key_maps[i]);
- }
- }
- SDL_free(kbd->key_maps);
-
- kbd->key_maps = default_key_maps;
- }
+ /* Allow inhibiting keyboard mute with env. variable for debugging etc. */
+ if (SDL_getenv("SDL_INPUT_LINUX_KEEP_KBD") == NULL) {
+ /* Mute the keyboard so keystrokes only generate evdev events
+ * and do not leak through to the console
+ */
+ ioctl(kbd->console_fd, KDSKBMODE, K_OFF);
- /* Allow inhibiting keyboard mute with env. variable for debugging etc. */
- if (SDL_getenv("SDL_INPUT_LINUX_KEEP_KBD") == NULL) {
- /* Mute the keyboard so keystrokes only generate evdev events
- * and do not leak through to the console
- */
- ioctl(kbd->console_fd, KDSKBMODE, K_OFF);
-
- /* Make sure to restore keyboard if application fails to call
- * SDL_Quit before exit or fatal signal is raised.
- */
- if (!SDL_GetHintBoolean(SDL_HINT_NO_SIGNAL_HANDLERS, SDL_FALSE)) {
- kbd_register_emerg_cleanup(kbd);
- }
+ /* Make sure to restore keyboard if application fails to call
+ * SDL_Quit before exit or fatal signal is raised.
+ */
+ if (!SDL_GetHintBoolean(SDL_HINT_NO_SIGNAL_HANDLERS, SDL_FALSE)) {
+ kbd_register_emerg_cleanup(kbd);
}
}
-
-#ifdef DUMP_ACCENTS
- SDL_EVDEV_dump_accents(kbd);
-#endif
-#ifdef DUMP_KEYMAP
- SDL_EVDEV_dump_keymap(kbd);
-#endif
return kbd;
}
@@ -489,6 +433,11 @@ static unsigned int handle_diacr(SDL_EVDEV_keyboard_state *kbd, unsigned int ch)
kbd->diacr = 0;
+ if (kbd->console_fd >= 0)
+ if (ioctl(kbd->console_fd, KDGKBDIACR, kbd->accents) < 0) {
+ /* No worries, we'll use the default accent table */
+ }
+
for (i = 0; i < kbd->accents->kb_cnt; i++) {
if (kbd->accents->kbdiacr[i].diacr == d &&
kbd->accents->kbdiacr[i].base == ch) {
@@ -795,7 +744,17 @@ void SDL_EVDEV_kbd_keycode(SDL_EVDEV_keyboard_state *state, unsigned int keycode
}
if (keycode < NR_KEYS) {
- keysym = key_map[keycode];
+ if (state->console_fd < 0) {
+ keysym = key_map[keycode];
+ } else {
+ struct kbentry kbe;
+ kbe.kb_table = shift_final;
+ kbe.kb_index = keycode;
+ if (ioctl(state->console_fd, KDGKBENT, &kbe) == 0)
+ keysym = (kbe.kb_value ^ 0xf000);
+ else
+ return;
+ }
} else {
return;
}
@@ -814,9 +773,18 @@ void SDL_EVDEV_kbd_keycode(SDL_EVDEV_keyboard_state *state, unsigned int keycode
type = KT_LATIN;
if (vc_kbd_led(state, K_CAPSLOCK)) {
- key_map = state->key_maps[shift_final ^ (1 << KG_SHIFT)];
+ shift_final = shift_final ^ (1 << KG_SHIFT);
+ key_map = state->key_maps[shift_final];
if (key_map) {
- keysym = key_map[keycode];
+ if (state->console_fd < 0) {
+ keysym = key_map[keycode];
+ } else {
+ struct kbentry kbe;
+ kbe.kb_table = shift_final;
+ kbe.kb_index = keycode;
+ if (ioctl(state->console_fd, KDGKBENT, &kbe) == 0)
+ keysym = (kbe.kb_value ^ 0xf000);
+ }
}
}
}
--
2.39.2
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