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| author | Cole Robinson <crobinso@redhat.com> | 2016-05-06 14:03:06 -0400 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2016-05-11 08:02:40 +0200 |
| commit | 56f289f383a871e871f944c7226920b35794efe6 (patch) | |
| tree | b5ee2f44f097e72849b7d830a38c9f61c299b4ef /ui/sdl2.c | |
| parent | 4fd811a6bd0b8f24f4761fc281454494c336d310 (diff) | |
| download | qemu-56f289f383a871e871f944c7226920b35794efe6.tar.gz | |
ui: sdl2: Release grab before opening console window
sdl 2.0.4 currently has a bug which causes our UI shortcuts to fire
rapidly in succession:
https://bugzilla.libsdl.org/show_bug.cgi?id=3287
It's a toss up whether ctrl+alt+f or ctrl+alt+2 will fire an
odd or even number of times, thus determining whether the action
succeeds or fails.
Opening monitor/serial windows is doubly broken, since it will often
lock the UI trying to grab the pointer:
0x00007fffef3720a5 in SDL_Delay_REAL () at /lib64/libSDL2-2.0.so.0
0x00007fffef3688ba in X11_SetWindowGrab () at /lib64/libSDL2-2.0.so.0
0x00007fffef2f2da7 in SDL_SendWindowEvent () at /lib64/libSDL2-2.0.so.0
0x00007fffef2f080b in SDL_SetKeyboardFocus () at /lib64/libSDL2-2.0.so.0
0x00007fffef35d784 in X11_DispatchFocusIn.isra.8 () at /lib64/libSDL2-2.0.so.0
0x00007fffef35dbce in X11_DispatchEvent () at /lib64/libSDL2-2.0.so.0
0x00007fffef35ee4a in X11_PumpEvents () at /lib64/libSDL2-2.0.so.0
0x00007fffef2eea6a in SDL_PumpEvents_REAL () at /lib64/libSDL2-2.0.so.0
0x00007fffef2eeab5 in SDL_WaitEventTimeout_REAL () at /lib64/libSDL2-2.0.so.0
0x000055555597eed0 in sdl2_poll_events (scon=0x55555876f928) at ui/sdl2.c:593
We can work around that hang by ungrabbing the pointer before launching
a new window. This roughly matches what our sdl1 code does
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Message-id: 31c9ab6540b031f7a614c59edcecea9877685612.1462557436.git.crobinso@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'ui/sdl2.c')
| -rw-r--r-- | ui/sdl2.c | 4 |
1 files changed, 4 insertions, 0 deletions
@@ -357,6 +357,10 @@ static void handle_keydown(SDL_Event *ev) case SDL_SCANCODE_7: case SDL_SCANCODE_8: case SDL_SCANCODE_9: + if (gui_grab) { + sdl_grab_end(scon); + } + win = ev->key.keysym.scancode - SDL_SCANCODE_1; if (win < sdl2_num_outputs) { sdl2_console[win].hidden = !sdl2_console[win].hidden; |