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Diffstat (limited to 'nx-X11/lib/Xext/extutil.c')
| -rw-r--r-- | nx-X11/lib/Xext/extutil.c | 273 |
1 files changed, 0 insertions, 273 deletions
diff --git a/nx-X11/lib/Xext/extutil.c b/nx-X11/lib/Xext/extutil.c deleted file mode 100644 index bd79dbdb2..000000000 --- a/nx-X11/lib/Xext/extutil.c +++ /dev/null @@ -1,273 +0,0 @@ -/* - * $Xorg: extutil.c,v 1.4 2001/02/09 02:03:49 xorgcvs Exp $ - * -Copyright 1989, 1998 The Open Group - -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. - -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 -OPEN GROUP 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 Open Group 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 Open Group. - * - * 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! - * - * Routines include: - * - * XextCreateExtension called once per extension - * XextDestroyExtension if no longer using extension - * XextAddDisplay add another display - * XextRemoveDisplay remove a display - * XextFindDisplay is a display open - * - * In addition, the following Xlib-style interfaces are provided: - * - * XSetExtensionErrorHandler establish an extension error handler - * XMissingExtension raise an error about missing ext - */ -/* $XFree86: xc/lib/Xext/extutil.c,v 1.5 2002/10/16 00:37:27 dawes Exp $ */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif -#include <stdio.h> -#include <nx-X11/Xlibint.h> -#include <nx-X11/extensions/Xext.h> -#include <nx-X11/extensions/extutil.h> - - -/* - * XextCreateExtension - return an extension descriptor containing context - * information for this extension. This object is passed to all Xext - * routines. - */ -XExtensionInfo *XextCreateExtension (void) -{ - register XExtensionInfo *info = - (XExtensionInfo *) Xmalloc (sizeof (XExtensionInfo)); - - if (info) { - info->head = NULL; - info->cur = NULL; - info->ndisplays = 0; - } - return info; -} - - -/* - * XextDestroyExtension - free memory the given extension descriptor - */ -void XextDestroyExtension (XExtensionInfo *info) -{ - info->head = NULL; /* to catch refs after this */ - info->cur = NULL; - info->ndisplays = 0; - XFree ((char *) info); -} - - - -/* - * XextAddDisplay - add a display to this extension - */ -XExtDisplayInfo *XextAddDisplay ( - XExtensionInfo *extinfo, - Display *dpy, - char *ext_name, - XExtensionHooks *hooks, - int nevents, - XPointer data) -{ - XExtDisplayInfo *dpyinfo; - - dpyinfo = (XExtDisplayInfo *) Xmalloc (sizeof (XExtDisplayInfo)); - if (!dpyinfo) return NULL; - dpyinfo->display = dpy; - dpyinfo->data = data; - dpyinfo->codes = XInitExtension (dpy, ext_name); - - /* - * if the server has the extension, then we can initialize the - * appropriate function vectors - */ - if (dpyinfo->codes) { - int i, j; - - for (i = 0, j = dpyinfo->codes->first_event; i < nevents; i++, j++) { - XESetWireToEvent (dpy, j, hooks->wire_to_event); - XESetEventToWire (dpy, j, hooks->event_to_wire); - } - if (hooks->create_gc) - XESetCreateGC (dpy, dpyinfo->codes->extension, hooks->create_gc); - if (hooks->copy_gc) - XESetCopyGC (dpy, dpyinfo->codes->extension, hooks->copy_gc); - if (hooks->flush_gc) - XESetFlushGC (dpy, dpyinfo->codes->extension, hooks->flush_gc); - if (hooks->free_gc) - XESetFreeGC (dpy, dpyinfo->codes->extension, hooks->free_gc); - if (hooks->create_font) - XESetCreateFont (dpy, dpyinfo->codes->extension, hooks->create_font); - if (hooks->free_font) - XESetFreeFont (dpy, dpyinfo->codes->extension, hooks->free_font); - if (hooks->close_display) - XESetCloseDisplay (dpy, dpyinfo->codes->extension, - hooks->close_display); - if (hooks->error) - XESetError (dpy, dpyinfo->codes->extension, hooks->error); - if (hooks->error_string) - XESetErrorString (dpy, dpyinfo->codes->extension, - hooks->error_string); - } else if (hooks->close_display) { - /* The server doesn't have this extension. - * Use a private Xlib-internal extension to hang the close_display - * hook on so that the "cache" (extinfo->cur) is properly cleaned. - * (XBUG 7955) - */ - XExtCodes *codes = XAddExtension(dpy); - if (!codes) { - XFree(dpyinfo); - return NULL; - } - XESetCloseDisplay (dpy, codes->extension, hooks->close_display); - } - - /* - * now, chain it onto the list - */ - _XLockMutex(_Xglobal_lock); - dpyinfo->next = extinfo->head; - extinfo->head = dpyinfo; - extinfo->cur = dpyinfo; - extinfo->ndisplays++; - _XUnlockMutex(_Xglobal_lock); - return dpyinfo; -} - - -/* - * XextRemoveDisplay - remove the indicated display from the extension object - */ -int XextRemoveDisplay (XExtensionInfo *extinfo, Display *dpy) -{ - XExtDisplayInfo *dpyinfo, *prev; - - /* - * locate this display and its back link so that it can be removed - */ - _XLockMutex(_Xglobal_lock); - prev = NULL; - for (dpyinfo = extinfo->head; dpyinfo; dpyinfo = dpyinfo->next) { - if (dpyinfo->display == dpy) break; - prev = dpyinfo; - } - if (!dpyinfo) { - _XUnlockMutex(_Xglobal_lock); - return 0; /* hmm, actually an error */ - } - - /* - * remove the display from the list; handles going to zero - */ - if (prev) - prev->next = dpyinfo->next; - else - extinfo->head = dpyinfo->next; - - extinfo->ndisplays--; - if (dpyinfo == extinfo->cur) extinfo->cur = NULL; /* flush cache */ - _XUnlockMutex(_Xglobal_lock); - - Xfree ((char *) dpyinfo); - return 1; -} - - -/* - * XextFindDisplay - look for a display in this extension; keeps a cache - * of the most-recently used for efficiency. - */ -XExtDisplayInfo *XextFindDisplay (XExtensionInfo *extinfo, Display *dpy) -{ - register XExtDisplayInfo *dpyinfo; - - /* - * see if this was the most recently accessed display - */ - if ((dpyinfo = extinfo->cur)&& dpyinfo->display == dpy) return dpyinfo; - - - /* - * look for display in list - */ - _XLockMutex(_Xglobal_lock); - for (dpyinfo = extinfo->head; dpyinfo; dpyinfo = dpyinfo->next) { - if (dpyinfo->display == dpy) { - extinfo->cur = dpyinfo; /* cache most recently used */ - _XUnlockMutex(_Xglobal_lock); - return dpyinfo; - } - } - _XUnlockMutex(_Xglobal_lock); - - return NULL; -} - - - -static int _default_exterror (Display *dpy, char *ext_name, char *reason) -{ - fprintf (stderr, "Xlib: extension \"%s\" %s on display \"%s\".\n", - ext_name, reason, DisplayString(dpy)); - return 0; -} - - -/* - * XSetExtensionErrorHandler - sets the handler that gets called when a - * requested extension is referenced. This should eventually move into Xlib. - */ - -extern int (*_XExtensionErrorFunction)(); - -int (*XSetExtensionErrorHandler(int (*handler)(Display*, char *, char * )))() -{ - int (*oldhandler)() = _XExtensionErrorFunction; - - _XExtensionErrorFunction = (handler ? handler : - _default_exterror); - return oldhandler; -} - - -/* - * XMissingExtension - call the extension error handler - */ -int XMissingExtension (Display *dpy, _Xconst char *ext_name) -{ - int (*func)() = (_XExtensionErrorFunction ? - _XExtensionErrorFunction : _default_exterror); - - if (!ext_name) ext_name = X_EXTENSION_UNKNOWN; - return (*func) (dpy, ext_name, X_EXTENSION_MISSING); -} |