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/*
* cslibint.h -- low level I/O
*
* (c) Copyright 1993-1994 Adobe Systems Incorporated.
* All rights reserved.
*
* Permission to use, copy, modify, distribute, and sublicense this software
* and its documentation for any purpose and without fee is hereby granted,
* provided that the above copyright notices appear in all copies and that
* both those copyright notices and this permission notice appear in
* supporting documentation and that the name of Adobe Systems Incorporated
* not be used in advertising or publicity pertaining to distribution of the
* software without specific, written prior permission. No trademark license
* to use the Adobe trademarks is hereby granted. If the Adobe trademark
* "Display PostScript"(tm) is used to describe this software, its
* functionality or for any other purpose, such use shall be limited to a
* statement that this software works in conjunction with the Display
* PostScript system. Proper trademark attribution to reflect Adobe's
* ownership of the trademark shall be given whenever any such reference to
* the Display PostScript system is made.
*
* ADOBE MAKES NO REPRESENTATIONS ABOUT THE SUITABILITY OF THE SOFTWARE FOR
* ANY PURPOSE. IT IS PROVIDED "AS IS" WITHOUT EXPRESS OR IMPLIED WARRANTY.
* ADOBE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NON- INFRINGEMENT OF THIRD PARTY RIGHTS. IN NO EVENT SHALL ADOBE BE LIABLE
* TO YOU OR ANY OTHER PARTY FOR ANY SPECIAL, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE, STRICT LIABILITY OR ANY OTHER ACTION ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ADOBE WILL NOT
* PROVIDE ANY TRAINING OR OTHER SUPPORT FOR THE SOFTWARE.
*
* Adobe, PostScript, and Display PostScript are trademarks of Adobe Systems
* Incorporated which may be registered in certain jurisdictions
*
* Portions Copyright 1984, 1985, 1987, 1989 Massachusetts Institute of
* Technology
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, 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 M.I.T. not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. M.I.T. makes no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* Author: Adobe Systems Incorporated and MIT X Consortium
*/
/*
* XlibInternal.h - Header definition and support file for the internal
* support routines (XlibInternal) used by the C subroutine interface
* library (Xlib) to the X Window System.
*
* Warning, there be dragons here....
*/
#ifndef _CSLIBINT_H
#define _CSLIBINT_H
#include <X11/Xlibint.h>
#include <X11/Xutil.h>
/* For SYSV, no gethostname, so fake it */
#include <sys/param.h>
#ifndef MAXHOSTNAMELEN
#define MAXHOSTNAMELEN 64
#endif
/* === MACROS === */
/*
* GetReq - Get the next avilable X request packet in the buffer and
* return it.
*
* "name" is the name of the request, e.g. CreatePixmap, OpenFont, etc.
* "req" is the name of the request pointer.
*
*/
#if defined(__STDC__) && !defined(UNIXCPP)
#define NXMacroGetReq(name, req) \
WORD64ALIGN\
if ((dpy->bufptr + SIZEOF(x##name##Req)) > dpy->bufmax)\
{if (dpy != xdpy) N_XFlush(dpy); else _XFlush(dpy);}\
req = (x##name##Req *)(dpy->last_req = dpy->bufptr);\
req->reqType = X_##name;\
req->length = (SIZEOF(x##name##Req))>>2;\
dpy->bufptr += SIZEOF(x##name##Req);\
dpy->request++
#else /* non-ANSI C uses empty comment instead of "##" for token concatenation */
#define NXMacroGetReq(name, req) \
WORD64ALIGN\
if ((dpy->bufptr + SIZEOF(x/**/name/**/Req)) > dpy->bufmax)\
{if (dpy != xdpy) N_XFlush(dpy); else _XFlush(dpy);}\
req = (x/**/name/**/Req *)(dpy->last_req = dpy->bufptr);\
req->reqType = X_/**/name;\
req->length = (SIZEOF(x/**/name/**/Req))>>2;\
dpy->bufptr += SIZEOF(x/**/name/**/Req);\
dpy->request++
#endif
#ifdef NEEDFORNX
/* GetReqExtra is the same as GetReq, but allocates "n" additional
bytes after the request. "n" must be a multiple of 4! */
#if defined(__STDC__) && !defined(UNIXCPP)
#define GetReqExtra(name, n, req) \
WORD64ALIGN\
if ((dpy->bufptr + SIZEOF(x##name##Req) + n) > dpy->bufmax)\
_XFlush(dpy);\
req = (x##name##Req *)(dpy->last_req = dpy->bufptr);\
req->reqType = X_##name;\
req->length = (SIZEOF(x##name##Req) + n)>>2;\
dpy->bufptr += SIZEOF(x##name##Req) + n;\
dpy->request++
#else
#define GetReqExtra(name, n, req) \
WORD64ALIGN\
if ((dpy->bufptr + SIZEOF(x/**/name/**/Req) + n) > dpy->bufmax)\
_XFlush(dpy);\
req = (x/**/name/**/Req *)(dpy->last_req = dpy->bufptr);\
req->reqType = X_/**/name;\
req->length = (SIZEOF(x/**/name/**/Req) + n)>>2;\
dpy->bufptr += SIZEOF(x/**/name/**/Req) + n;\
dpy->request++
#endif
/*
* GetResReq is for those requests that have a resource ID
* (Window, Pixmap, GContext, etc.) as their single argument.
* "rid" is the name of the resource.
*/
#if __STDC__ && !defined(UNIXCPP)
#define GetResReq(name, rid, req) \
WORD64ALIGN\
if ((dpy->bufptr + SIZEOF(xResourceReq)) > dpy->bufmax)\
_XFlush(dpy);\
req = (xResourceReq *) (dpy->last_req = dpy->bufptr);\
req->reqType = X_##name;\
req->length = 2;\
req->id = (rid);\
dpy->bufptr += SIZEOF(xResourceReq);\
dpy->request++
#else
#define GetResReq(name, rid, req) \
WORD64ALIGN\
if ((dpy->bufptr + SIZEOF(xResourceReq)) > dpy->bufmax)\
_XFlush(dpy);\
req = (xResourceReq *) (dpy->last_req = dpy->bufptr);\
req->reqType = X_/**/name;\
req->length = 2;\
req->id = (rid);\
dpy->bufptr += SIZEOF(xResourceReq);\
dpy->request++
#endif
/*
* GetEmptyReq is for those requests that have no arguments
* at all.
*/
#if __STDC__ && !defined(UNIXCPP)
#define GetEmptyReq(name, req) \
WORD64ALIGN\
if ((dpy->bufptr + SIZEOF(xReq)) > dpy->bufmax)\
_XFlush(dpy);\
req = (xReq *) (dpy->last_req = dpy->bufptr);\
req->reqType = X_##name;\
req->length = 1;\
dpy->bufptr += SIZEOF(xReq);\
dpy->request++
#else
#define GetEmptyReq(name, req) \
WORD64ALIGN\
if ((dpy->bufptr + SIZEOF(xReq)) > dpy->bufmax)\
_XFlush(dpy);\
req = (xReq *) (dpy->last_req = dpy->bufptr);\
req->reqType = X_/**/name;\
req->length = 1;\
dpy->bufptr += SIZEOF(xReq);\
dpy->request++
#endif
#define SyncHandle() \
if (dpy->synchandler) (*dpy->synchandler)(dpy)
#define FlushGC(dpy, gc) \
if ((gc)->dirty) _XFlushGCCache((dpy), (gc))
/*
* Data - Place data in the buffer and pad the end to provide
* 32 bit word alignment. Transmit if the buffer fills.
*
* "dpy" is a pointer to a Display.
* "data" is a pinter to a data buffer.
* "len" is the length of the data buffer.
* we can presume buffer less than 2^16 bytes, so bcopy can be used safely.
*/
#ifndef DataRoutineIsProcedure
#define Data(dpy, data, len) \
if (dpy->bufptr + (len) <= dpy->bufmax) {\
bcopy(data, dpy->bufptr, (int)len);\
dpy->bufptr += ((len) + 3) & ~3;\
} else\
_XSend(dpy, data, len)
#endif /* DataRoutineIsProcedure */
/* Allocate bytes from the buffer. No padding is done, so if
* the length is not a multiple of 4, the caller must be
* careful to leave the buffer aligned after sending the
* current request.
*
* "type" is the type of the pointer being assigned to.
* "ptr" is the pointer being assigned to.
* "n" is the number of bytes to allocate.
*
* Example:
* xTextElt *elt;
* BufAlloc (xTextElt *, elt, nbytes)
*/
#define BufAlloc(type, ptr, n) \
if (dpy->bufptr + (n) > dpy->bufmax) \
_XFlush (dpy); \
ptr = (type) dpy->bufptr; \
dpy->bufptr += (n);
/*
* provide emulation routines for smaller architectures
*/
#ifndef WORD64
#define Data16(dpy, data, len) Data((dpy), (char *)(data), (len))
#define Data32(dpy, data, len) Data((dpy), (char *)(data), (len))
#define _XRead16Pad(dpy, data, len) _XReadPad((dpy), (char *)(data), (len))
#define _XRead16(dpy, data, len) _XRead((dpy), (char *)(data), (len))
#define _XRead32(dpy, data, len) _XRead((dpy), (char *)(data), (len))
#endif /* not WORD64 */
#define PackData16(dpy,data,len) Data16 (dpy, data, len)
#define PackData32(dpy,data,len) Data32 (dpy, data, len)
/* Xlib manual is bogus */
#define PackData(dpy,data,len) PackData16 (dpy, data, len)
#endif /* NEEDFORNX */
#if !defined(STARTITERATE) && !defined(WORD64)
#define STARTITERATE(tpvar,type,start,endcond,decr) \
for (tpvar = (type *) start; endcond; tpvar++, decr) {
#define ENDITERATE }
#endif /* STARTITERATE */
#ifndef WORD64
#undef Data32
#define Data32(dpy, data, len) NXProcData((dpy), (char *)(data), (len))
#endif /* not WORD64 */
extern int gNXSyncGCMode;
/* extension hooks */
extern Bool N_XUnknownWireEvent(Display *, XEvent *, xEvent *);
extern Status N_XReply(Display *, xReply *, int, Bool);
extern Status N_XUnknownNativeEvent(Display *, XEvent *, xEvent *);
extern int DPSCAPConnect( char *, char **, int *, int *, int *, char **);
extern int N_XDisconnectDisplay(int);
extern int N_XGetHostname (char *, int);
extern int N_XRead(Display*, char *, long);
extern void NXProcData (Display *, char *, long);
extern void N_XFlush(Display *);
extern void N_XReadPad(Display*, char *, long);
extern void N_XSend(Display *, _Xconst char *, long);
extern void N_XWaitForReadable(Display *);
extern void N_XWaitForWritable(Display *);
extern void XDPSGetDefaultColorMaps(
Display *dpy,
Screen *screen,
Drawable drawable,
XStandardColormap *colorCube,
XStandardColormap *grayRamp);
#endif /* _CSLIBINT_H */
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