This moves all key codes above the highest valid unicode code point
(which is 0x10FFFF). All key codes below MP_KEY_BASE now directly map
to unicode (KEY_ENTER is 13, carriage return). Configuration files
(input.conf) can contain unicode characters in UTF-8 to map non-ASCII
characters/keys.
This shouldn't change anything user visible, except that "direct key
codes" (as used in input.conf) will change their meaning.
Parts of the bstr functions taken from libavutil's GET_UTF8 and
slightly modified.
Increase the number of supported mouse buttons from 10 to 20. There
really seem to be input devices with at least 12.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@33391 b3059339-0415-0410-9bf9-f77b7e298cf2
Move the definitions of all special key codes (those not passed by
ASCII value) to input/keycodes.h. Before they were spread between
osdep/keycodes.h, input/joystick.h, input/mouse.h and input/ar.h, plus
some special values in input.h. This was especially inconvenient as
the codes had to be coordinated to not conflict between the files.
The change requires a bit of ugliness as appleir.c includes
<linux/input.h> which contains various conflicting KEY_* definitions.
Work around this by adding a special preprocessor variable which can
be used to avoid defining these in keycodes.h.
