xref: /xsrc/external/mit/libX11/dist/src/xkb/XKBlibint.h

/************************************************************
Copyright (c) 1993 by Silicon Graphics Computer Systems, Inc.

Permission to use, copy, modify, and distribute this
software and its documentation for any purpose and without
fee is hereby granted, provided that the above copyright
notice appear in all copies and that both that copyright
notice and this permission notice appear in supporting
documentation, and that the name of Silicon Graphics not be
used in advertising or publicity pertaining to distribution
of the software without specific prior written permission.
Silicon Graphics makes no representation about the suitability
of this software for any purpose. It is provided "as is"
without any express or implied warranty.

SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
GRAPHICS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION  WITH
THE USE OR PERFORMANCE OF THIS SOFTWARE.

********************************************************/

#ifndef _XKBLIBINT_H_
#define	_XKBLIBINT_H_

#include <X11/Xutil.h>
#include <X11/XKBlib.h>

#define	XkbMapPending		(1<<0)
#define	XkbXlibNewKeyboard	(1<<1)

typedef int	(*XkbKSToMBFunc)(
	XPointer	/* priv */,
	KeySym		/* sym */,
	char *		/* buf */,
	int		/* len */,
	int *		/* extra_rtrn */
);

typedef KeySym	(*XkbMBToKSFunc)(
	XPointer	/* priv */,
	char *		/* buf */,
	int		/* len */,
	Status *	/* status */
);

typedef KeySym	(*XkbToUpperFunc)(
	KeySym		/* sym */
);

typedef struct _XkbConverters {
	XkbKSToMBFunc	 KSToMB;
	XPointer	 KSToMBPriv;
	XkbMBToKSFunc	 MBToKS;
	XPointer	 MBToKSPriv;
	XkbToUpperFunc	 KSToUpper;
} XkbConverters;

extern	XkbInternAtomFunc	_XkbInternAtomFunc;
extern	XkbGetAtomNameFunc	_XkbGetAtomNameFunc;

typedef struct _XkbInfoRec {
	unsigned	 flags;
	unsigned	 xlib_ctrls;
	XExtCodes	 *codes;
	int		 srv_major;
	int		 srv_minor;
	unsigned	 selected_events;
	unsigned short	 selected_nkn_details;
	unsigned short	 selected_map_details;
	XkbDescRec	*desc;
	XkbMapChangesRec changes;
	Atom		 composeLED;
	XkbConverters	 cvt;
	XkbConverters	 latin1cvt;
} XkbInfoRec, *XkbInfoPtr;


#define	_XkbUnavailable(d) \
	(((d)->flags&XlibDisplayNoXkb) ||\
	 ((!(d)->xkb_info || (!(d)->xkb_info->desc)) && !_XkbLoadDpy(d)))

#define	_XkbCheckPendingRefresh(d,xi) {\
    if ((xi)->flags&XkbXlibNewKeyboard)\
	_XkbReloadDpy((d));\
    else if ((xi)->flags&XkbMapPending) {\
	if (XkbGetMapChanges((d),(xi)->desc, &(xi)->changes)==Success) {\
	    LockDisplay((d));\
	    (xi)->changes.changed= 0;\
	    UnlockDisplay((d));\
	}\
    }\
}

#define	_XkbNeedModmap(i)    ((!(i)->desc->map)||(!(i)->desc->map->modmap))

	/*
	 * mask of the events that the "invisible" XKB support in Xlib needs
	 */
#define XKB_XLIB_MAP_MASK (XkbAllClientInfoMask)

	/*
	 * Handy helper macros
	 */
#define	XKB_INSURE_SIZE(f,t,nNum,oNum)	{\
	if ((f)==NULL)	\
	     (f)=(t *)Xmalloc(sizeof(t)*(nNum));\
	else if ((nNum)<(oNum))\
	     (f)=(t *)Xrealloc((f),sizeof(t)*(nNum));\
	}

typedef struct _XkbReadBuffer {
	int	 error;
	int	 size;
	char	*start;
	char	*data;
} XkbReadBufferRec,*XkbReadBufferPtr;

#define	_XkbAlloc(s)		Xmalloc((s))
#define	_XkbCalloc(n,s)		Xcalloc((n),(s))
#define	_XkbRealloc(o,s)	Xrealloc((o),(s))
#define	_XkbTypedAlloc(t)	((t *)Xmalloc(sizeof(t)))
#define	_XkbTypedCalloc(n,t)	((t *)Xcalloc((n),sizeof(t)))
#define	_XkbTypedRealloc(o,n,t) \
	((o)?(t *)Xrealloc((o),(n)*sizeof(t)):_XkbTypedCalloc(n,t))
#define	_XkbClearElems(a,f,l,t)	bzero(&(a)[f],((l)-(f)+1)*sizeof(t))
#define	_XkbFree(p)		Xfree(p)

_XFUNCPROTOBEGIN

extern	void _XkbReloadDpy(
    Display *		/* dpy */
);

extern KeySym _XKeycodeToKeysym(
    Display*		/* display */,
#if NeedWidePrototypes
    unsigned int	/* keycode */,
#else
    KeyCode		/* keycode */,
#endif
    int			/* index */
);

extern KeyCode _XKeysymToKeycode(
    Display*		/* display */,
    KeySym		/* keysym */
);

extern KeySym _XLookupKeysym(
    XKeyEvent*		/* key_event */,
    int			/* index */
);

extern int _XRefreshKeyboardMapping(
    XMappingEvent*	/* event_map */
);

extern unsigned	_XKeysymToModifiers(
    Display *		/* dpy */,
    KeySym 		/* ks */
);

extern int _XTranslateKey(
    register Display *	/* dpy */,
    KeyCode 		/* keycode */,
    register unsigned int /* modifiers */,
    unsigned int *	/* modifiers_return */,
    KeySym *		/* keysym_return */
);

extern int	_XTranslateKeySym(
    Display *		/* dpy */,
    register KeySym 	/* symbol */,
    unsigned int 	/* modifiers */,
    char *		/* buffer */,
    int 		/* nbytes */
);

extern	int _XLookupString(
    register XKeyEvent *	/* event */,
    char *			/* buffer */,
    int 			/* nbytes */,
    KeySym *			/* keysym */,
    XComposeStatus *		/* status */
);

extern void _XkbNoteCoreMapChanges(
    XkbMapChangesRec * 		/* old */,
    XMappingEvent * 		/* new */,
    unsigned int 		/* wanted */
);

extern	int _XkbInitReadBuffer(
    Display *		/* dpy */,
    XkbReadBufferPtr	/* buf */,
    int			/* size */
);

extern int _XkbSkipReadBufferData(
    XkbReadBufferPtr	/* from */,
    int			/* size */
);

extern int _XkbCopyFromReadBuffer(
    XkbReadBufferPtr	/* from */,
    char *		/* to */,
    int			/* size */
);


#ifdef LONG64
extern	int _XkbReadCopyData32(
    int *		/* from */,
    long *		/* to */,
    int			/* num_words */
);

extern	int _XkbWriteCopyData32(
    unsigned long *	/* from */,
    CARD32 *		/* to */,
    int			/* num_words */
);

extern int _XkbReadBufferCopy32(
    XkbReadBufferPtr	/* from */,
    long *		/* to */,
    int			/* size */
);
#else
#define	_XkbReadCopyData32(f,t,s)    memcpy((char *)(t),(char *)(f),(s)*4)
#define	_XkbWriteCopyData32(f,t,s)   memcpy((char *)(t),(char *)(f),(s)*4)
#define	_XkbReadBufferCopy32(f,t,s) _XkbCopyFromReadBuffer(f,(char *)t,(s)*4)
#endif

#ifndef NO_DEC_BINARY_COMPATIBILITY
#define XKB_FORCE_INT_KEYSYM 1
#endif

#ifdef XKB_FORCE_INT_KEYSYM
extern int _XkbReadCopyKeySyms(
    int *		/* from */,
    KeySym *		/* to */,
    int			/* num_words */
);

extern	int _XkbWriteCopyKeySyms(
    KeySym *		/* from */,
    CARD32 *		/* to */,
    int			/* num_words */
);

extern int _XkbReadBufferCopyKeySyms(
    XkbReadBufferPtr	/* from */,
#ifndef NO_DEC_BUG_FIX
    KeySym *		/* to */,
#else
    long *		/* to */,
#endif
    int			/* size */
);
#else
#define	_XkbReadCopyKeySyms(f,t,n)		_XkbReadCopyData32(f,t,n)
#define	_XkbWriteCopyKeySyms(f,t,n)		_XkbWriteCopyData32(f,t,n)
#define	_XkbReadBufferCopyKeySyms(f,t,s)	_XkbReadBufferCopy32(f,t,s)
#endif

extern char *_XkbPeekAtReadBuffer(
    XkbReadBufferPtr	/* from */,
    int			/*  size */
);

extern char *_XkbGetReadBufferPtr(
    XkbReadBufferPtr	/* from */,
    int			/* size */
);
#define	_XkbGetTypedRdBufPtr(b,n,t) ((t *)_XkbGetReadBufferPtr(b,(n)*SIZEOF(t)))

extern int _XkbFreeReadBuffer(
    XkbReadBufferPtr	/* buf */
);

extern Bool
_XkbGetReadBufferCountedString(
    XkbReadBufferPtr	/* buf */,
    char **		/* rtrn */
);

extern char	*_XkbGetCharset(
    void
);

extern int	 _XkbGetConverters(
    const char *       /* encoding_name */,
    XkbConverters *    /* cvt_rtrn */
);

#ifdef	NEED_MAP_READERS

extern	Status	_XkbReadGetMapReply(
    Display *		/* dpy */,
    xkbGetMapReply * 	/* rep */,
    XkbDescRec *	/* xkb */,
    int *		/* nread_rtrn */
);

extern	Status	_XkbReadGetCompatMapReply(
    Display *			/* dpy */,
    xkbGetCompatMapReply *	/* rep */,
    XkbDescPtr			/* xkb */,
    int	*			/* nread_rtrn */
);

extern	Status	_XkbReadGetIndicatorMapReply(
    Display *			/* dpy */,
    xkbGetIndicatorMapReply *	/* rep */,
    XkbDescPtr			/* xkb */,
    int	*			/* nread_rtrn */
);

extern	Status	_XkbReadGetNamesReply(
    Display *			/* dpy */,
    xkbGetNamesReply *		/* rep */,
    XkbDescPtr 			/* xkb */,
    int *			/* nread_rtrn */
);

extern	Status	_XkbReadGetGeometryReply(
    Display *			/* dpy */,
    xkbGetGeometryReply *	/* rep */,
    XkbDescPtr 			/* xkb */,
    int *			/* nread_rtrn */
);

#endif

_XFUNCPROTOEND

#endif /* _XKBLIBINT_H_ */