![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to Xlibint.h CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [Research Unix] / researchv9 / X11 / src / X.V11R1 / lib / X|
Return to Xlibint.h CVS log | Up to [Research Unix] / researchv9 / X11 / src / X.V11R1 / lib / X |
1.1 root 1: #include "copyright.h"
2:
3: /* $Header: Xlibint.h,v 11.40 87/06/24 11:32:42 swick Exp $ */
4: /* Copyright 1984, 1985, 1987 Massachusetts Institute of Technology */
5:
6: /*
7: * XlibInternal.h - Header definition and support file for the internal
8: * support routines (XlibInternal) used by the C subroutine interface
9: * library (Xlib) to the X Window System.
10: *
11: */
12: #ifndef NEED_EVENTS
13: #define _XEVENT_
14: #endif
15: #include <sys/types.h>
16: #include <X11/Xlib.h>
17: #include <X11/Xproto.h>
18: #include "Xlibos.h"
19: #include <errno.h>
20:
21: #ifndef NULL
22: #define NULL 0
23: #endif
24: #define LOCKED 1
25: #define UNLOCKED 0
26:
27: extern int errno; /* Internal system error number. */
28: extern void bcopy();
29:
30: extern (*_XIOErrorFunction)(); /* X system error reporting routine. */
31: extern (*_XErrorFunction)(); /* X_Error event reporting routine. */
32: extern char *_XAllocScratch(); /* fast memory allocator */
33: extern Visual *_XVIDtoVisual(); /* given visual id, find structure */
34:
1.1.1.2 ! root 35: #undef BUFSIZE
1.1 root 36: #define BUFSIZE 2048 /* X output buffer size. */
37: #define EPERBATCH 8 /* when batching, how many elements */
38: #define CURSORFONT "cursor" /* standard cursor fonts */
39:
40: /*
41: * X Protocol packetizing macros.
42: */
43:
44:
45: /*
46: * GetReq - Get the next avilable X request packet in the buffer and
47: * return it.
48: *
49: * "name" is the name of the request, e.g. CreatePixmap, OpenFont, etc.
50: * "req" is the name of the request pointer.
51: *
52: */
53:
54: #define GetReq(name, req) \
55: if ((dpy->bufptr + sizeof(x/**/name/**/Req)) > dpy->bufmax)\
56: _XFlush(dpy);\
57: req = (x/**/name/**/Req *)(dpy->last_req = dpy->bufptr);\
58: req->reqType = X_/**/name;\
59: req->length = (sizeof(x/**/name/**/Req))>>2;\
60: dpy->bufptr += sizeof(x/**/name/**/Req);\
61: dpy->request++
62:
63: /* GetReqExtra is the same as GetReq, but allocates "n" additional
64: bytes after the request. "n" must be a multiple of 4! */
65:
66:
67: #define GetReqExtra(name, n, req) \
68: if ((dpy->bufptr + sizeof(x/**/name/**/Req) + n) > dpy->bufmax)\
69: _XFlush(dpy);\
70: req = (x/**/name/**/Req *)(dpy->last_req = dpy->bufptr);\
71: req->reqType = X_/**/name;\
72: req->length = (sizeof(x/**/name/**/Req) + n)>>2;\
73: dpy->bufptr += sizeof(x/**/name/**/Req) + n;\
74: dpy->request++
75:
76: /*
77: * GetResReq is for those requests that have a resource ID
78: * (Window, Pixmap, GContext, etc.) as their single argument.
79: * "rid" is the name of the resource.
80: */
81:
82: #define GetResReq(name, rid, req) \
83: if ((dpy->bufptr + sizeof(xResourceReq)) > dpy->bufmax)\
84: _XFlush(dpy);\
85: req = (xResourceReq *) (dpy->last_req = dpy->bufptr);\
86: req->reqType = X_/**/name;\
87: req->length = 2;\
88: req->id = (rid);\
89: dpy->bufptr += sizeof(xResourceReq);\
90: dpy->request++
91:
92: /*
93: * GetEmptyReq is for those requests that have no arguments
94: * at all.
95: */
96:
97: #define GetEmptyReq(name, req) \
98: if ((dpy->bufptr + sizeof(xReq)) > dpy->bufmax)\
99: _XFlush(dpy);\
100: req = (xReq *) (dpy->last_req = dpy->bufptr);\
101: req->reqType = X_/**/name;\
102: req->length = 1;\
103: dpy->bufptr += sizeof(xReq);\
104: dpy->request++
105:
106: #define SyncHandle() \
107: if (dpy->synchandler) (*dpy->synchandler)(dpy)
108:
109: #define FlushGC(dpy, gc) \
110: if ((gc)->dirty) _XFlushGCCache((dpy), (gc))
111: /*
112: * Data - Place data in the buffer and pad the end to provide
113: * 32 bit word alignment. Transmit if the buffer fills.
114: *
115: * "dpy" is a pointer to a Display.
116: * "data" is a pinter to a data buffer.
117: * "len" is the length of the data buffer.
118: * we can presume buffer less than 2^16 bytes, so bcopy can be used safely.
119: */
120: #define Data(dpy, data, len) \
121: if (dpy->bufptr + (len) <= dpy->bufmax) {\
122: bcopy(data, dpy->bufptr, (int)len);\
123: dpy->bufptr += ((len) + 3) & ~3;\
124: } else\
125: _XSend(dpy, data, len)
126:
127:
128: /* Allocate bytes from the buffer. No padding is done, so if
129: * the length is not a multiple of 4, the caller must be
130: * careful to leave the buffer aligned after sending the
131: * current request.
132: *
133: * "type" is the type of the pointer being assigned to.
134: * "ptr" is the pointer being assigned to.
135: * "n" is the number of bytes to allocate.
136: *
137: * Example:
138: * xTextElt *elt;
139: * BufAlloc (xTextElt *, elt, nbytes)
140: */
141:
142: #define BufAlloc(type, ptr, n) \
143: if (dpy->bufptr + (n) > dpy->bufmax) \
144: _XFlush (dpy); \
145: ptr = (type) dpy->bufptr; \
146: dpy->bufptr += (n);
147:
148: #ifndef BIGSHORTS
149: #define PackData(dpy, data, len) Data(dpy, data, len)
150: #define PackShorts(f, t, n) bcopy(f, t, n)
151: #endif
152:
153: #define min(a,b) (((a) < (b)) ? (a) : (b))
154: #define max(a,b) (((a) > (b)) ? (a) : (b))
155:
156: #define CI_NONEXISTCHAR 0x4000 /* required because QueryFont represents
157: a non-existant character with zero-value
158: metrics, but requires drivers to output
159: the default char in their place. */
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.