+++ /dev/null
-/*
- * $XConsortium: extutil.h,v 1.15 94/10/07 15:36:33 kaleb Exp $
- *
-Copyright (c) 1989 X Consortium
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-Except as contained in this notice, the name of the X Consortium shall not be
-used in advertising or otherwise to promote the sale, use or other dealings
-in this Software without prior written authorization from the X Consortium.
- *
- * Author: Jim Fulton, MIT X Consortium
- *
- * Xlib Extension-Writing Utilities
- *
- * This package contains utilities for writing the client API for various
- * protocol extensions. THESE INTERFACES ARE NOT PART OF THE X STANDARD AND
- * ARE SUBJECT TO CHANGE!
- */
-
-#ifndef _EXTUTIL_H_
-#define _EXTUTIL_H_
-
-/*
- * We need to keep a list of open displays since the Xlib display list isn't
- * public. We also have to per-display info in a separate block since it isn't
- * stored directly in the Display structure.
- */
-typedef struct _XExtDisplayInfo {
- struct _XExtDisplayInfo *next; /* keep a linked list */
- Display *display; /* which display this is */
- XExtCodes *codes; /* the extension protocol codes */
- XPointer data; /* extra data for extension to use */
-} XExtDisplayInfo;
-
-typedef struct _XExtensionInfo {
- XExtDisplayInfo *head; /* start of list */
- XExtDisplayInfo *cur; /* most recently used */
- int ndisplays; /* number of displays */
-} XExtensionInfo;
-
-typedef struct _XExtensionHooks {
- int (*create_gc)(
-#if NeedNestedPrototypes
- Display* /* display */,
- GC /* gc */,
- XExtCodes* /* codes */
-#endif
-);
- int (*copy_gc)(
-#if NeedNestedPrototypes
- Display* /* display */,
- GC /* gc */,
- XExtCodes* /* codes */
-#endif
-);
- int (*flush_gc)(
-#if NeedNestedPrototypes
- Display* /* display */,
- GC /* gc */,
- XExtCodes* /* codes */
-#endif
-);
- int (*free_gc)(
-#if NeedNestedPrototypes
- Display* /* display */,
- GC /* gc */,
- XExtCodes* /* codes */
-#endif
-);
- int (*create_font)(
-#if NeedNestedPrototypes
- Display* /* display */,
- XFontStruct* /* fs */,
- XExtCodes* /* codes */
-#endif
-);
- int (*free_font)(
-#if NeedNestedPrototypes
- Display* /* display */,
- XFontStruct* /* fs */,
- XExtCodes* /* codes */
-#endif
-);
- int (*close_display)(
-#if NeedNestedPrototypes
- Display* /* display */,
- XExtCodes* /* codes */
-#endif
-);
- Bool (*wire_to_event)(
-#if NeedNestedPrototypes
- Display* /* display */,
- XEvent* /* re */,
- xEvent* /* event */
-#endif
-);
- Status (*event_to_wire)(
-#if NeedNestedPrototypes
- Display* /* display */,
- XEvent* /* re */,
- xEvent* /* event */
-#endif
-);
- int (*error)(
-#if NeedNestedPrototypes
- Display* /* display */,
- xError* /* err */,
- XExtCodes* /* codes */,
- int* /* ret_code */
-#endif
-);
- char *(*error_string)(
-#if NeedNestedPrototypes
- Display* /* display */,
- int /* code */,
- XExtCodes* /* codes */,
- char* /* buffer */,
- int /* nbytes */
-#endif
-);
-} XExtensionHooks;
-
-extern XExtensionInfo *XextCreateExtension(
-#if NeedFunctionPrototypes
- void
-#endif
-);
-extern void XextDestroyExtension(
-#if NeedFunctionPrototypes
- XExtensionInfo* /* info */
-#endif
-);
-extern XExtDisplayInfo *XextAddDisplay(
-#if NeedFunctionPrototypes
- XExtensionInfo* /* extinfo */,
- Display* /* dpy */,
- char* /* ext_name */,
- XExtensionHooks* /* hooks */,
- int /* nevents */,
- XPointer /* data */
-#endif
-);
-extern int XextRemoveDisplay(
-#if NeedFunctionPrototypes
- XExtensionInfo* /* extinfo */,
- Display* /* dpy */
-#endif
-);
-extern XExtDisplayInfo *XextFindDisplay(
-#if NeedFunctionPrototypes
- XExtensionInfo* /* extinfo */,
- Display* /* dpy */
-#endif
-);
-
-#define XextHasExtension(i) ((i) && ((i)->codes))
-#define XextCheckExtension(dpy,i,name,val) \
- if (!XextHasExtension(i)) { XMissingExtension (dpy, name); return val; }
-#define XextSimpleCheckExtension(dpy,i,name) \
- if (!XextHasExtension(i)) { XMissingExtension (dpy, name); return; }
-
-
-/*
- * helper macros to generate code that is common to all extensions; caller
- * should prefix it with static if extension source is in one file; this
- * could be a utility function, but have to stack 6 unused arguments for
- * something that is called many, many times would be bad.
- */
-#define XEXT_GENERATE_FIND_DISPLAY(proc,extinfo,extname,hooks,nev,data) \
-XExtDisplayInfo *proc (dpy) \
- register Display *dpy; \
-{ \
- XExtDisplayInfo *dpyinfo; \
- if (!extinfo) { if (!(extinfo = XextCreateExtension())) return NULL; } \
- if (!(dpyinfo = XextFindDisplay (extinfo, dpy))) \
- dpyinfo = XextAddDisplay (extinfo,dpy,extname,hooks,nev,data); \
- return dpyinfo; \
-}
-
-#define XEXT_GENERATE_CLOSE_DISPLAY(proc,extinfo) \
-int proc (dpy, codes) \
- Display *dpy; \
- XExtCodes *codes; \
-{ \
- return XextRemoveDisplay (extinfo, dpy); \
-}
-
-#define XEXT_GENERATE_ERROR_STRING(proc,extname,nerr,errl) \
-char *proc (dpy, code, codes, buf, n) \
- Display *dpy; \
- int code; \
- XExtCodes *codes; \
- char *buf; \
- int n; \
-{ \
- code -= codes->first_error; \
- if (code >= 0 && code < nerr) { \
- char tmp[256]; \
- sprintf (tmp, "%s.%d", extname, code); \
- XGetErrorDatabaseText (dpy, "XProtoError", tmp, errl[code], buf, n); \
- return buf; \
- } \
- return (char *)0; \
-}
-
-#endif
projects / rdpsrv / blobdiff