This adds SDL_SetWindowKeyboardGrab(), SDL_GetWindowKeyboardGrab(),
SDL_SetWindowMouseGrab(), SDL_GetWindowMouseGrab(), and new
SDL_WINDOW_KEYBOARD_GRABBED flag. It also updates the test harness to exercise
this functionality and makes a minor fix to X11 that I missed in
https://hg.libsdl.org/SDL/rev/02a2d609369b
To fit in with this new support, SDL_WINDOW_INPUT_CAPTURE has been renamed to
SDL_WINDOW_MOUSE_CAPTURE with the old name remaining as an alias for backwards
compatibility with older code.
SDL_SemPost() was called by the FIFO threads after the semaphore was
freed because the main thread actually synchronized on the
`writerRunning`/`readersRunning` count and not the semaphores itself.
- acinclude/alsa.m4, esd.m4: Ran through autoupdate to replace several
AC_TRY_[COMPILE|LINK|RUN] with corresponding AC_???_IFELSE , so that
autoconf-2.70 doesn't warn.
- sdl2.m4: Ditto.
- test/acinclude.m4 (sdl2): Ditto.
- remove HP/UX 9 (%@#!) support
- change fopen() mode from "a" to "w" in test code.
- bump its serial num to 2.
- test/acinclude.m4: same sdl2.m4 updates.
Erik Yuzwa
Ryan C. Gordon
Vladislav Dmitrievich Turbanov
Cameron Gutman
Ozkan Sezer
Sylvain Becker
Sam Lantinga
Joel Linn