/* $Xorg: CrGlCur.c,v 1.4 2001/02/09 02:03:32 xorgcvs Exp $ */ /* Copyright 1986, 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. */ /* $XFree86: xc/lib/X11/CrGlCur.c,v 1.7 2003/04/13 19:22:15 dawes Exp $ */ #ifdef HAVE_CONFIG_H #include <config.h> #endif #include "Xlibint.h" #ifdef USE_DYNAMIC_XCURSOR #ifdef __UNIXOS2__ #define RTLD_LAZY 1 #define LIBXCURSOR "Xcursor.dll" #endif #include <stdio.h> #include <string.h> #if defined(hpux) #include <dl.h> #else #include <dlfcn.h> #endif #include "Cr.h" #if defined(hpux) typedef shl_dt XModuleType; #else typedef void *XModuleType; #endif #ifndef LIBXCURSOR #define LIBXCURSOR "libXcursor.so" #endif static char libraryName[] = LIBXCURSOR; static XModuleType open_library (void) { char *library = libraryName; char *dot; XModuleType module; for (;;) { #if defined(hpux) module = shl_load(library, BIND_DEFERRED, 0L); #else module = dlopen(library, RTLD_LAZY); #endif if (module) return module; dot = strrchr (library, '.'); if (!dot) break; *dot = '\0'; } return 0; } static void * fetch_symbol (XModuleType module, char *under_symbol) { void *result = NULL; char *symbol = under_symbol + 1; #if defined(hpux) int getsyms_cnt, i; struct shl_symbol *symbols; getsyms_cnt = shl_getsymbols(module, TYPE_PROCEDURE, EXPORT_SYMBOLS, malloc, &symbols); for(i=0; i<getsyms_cnt; i++) { if(!strcmp(symbols[i].name, symbol)) { result = symbols[i].value; break; } } if(getsyms_cnt > 0) { free(symbols); } #else result = dlsym (module, symbol); if (!result) result = dlsym (module, under_symbol); #endif return result; } typedef void (*NoticeCreateBitmapFunc) (Display *dpy, Pixmap pid, unsigned int width, unsigned int height); typedef void (*NoticePutBitmapFunc) (Display *dpy, Drawable draw, XImage *image); typedef Cursor (*TryShapeBitmapCursorFunc) (Display *dpy, Pixmap source, Pixmap mask, XColor *foreground, XColor *background, unsigned int x, unsigned int y); typedef Cursor (*TryShapeCursorFunc) (Display *dpy, Font source_font, Font mask_font, unsigned int source_char, unsigned int mask_char, XColor _Xconst *foreground, XColor _Xconst *background); static XModuleType _XcursorModule; static Bool _XcursorModuleTried; #define GetFunc(type,name,ret) {\ static Bool been_here; \ static type staticFunc; \ \ _XLockMutex (_Xglobal_lock); \ if (!been_here) \ { \ been_here = True; \ if (!_XcursorModuleTried) \ { \ _XcursorModuleTried = True; \ _XcursorModule = open_library (); \ } \ if (_XcursorModule) \ staticFunc = (type) fetch_symbol (_XcursorModule, "_" name); \ } \ ret = staticFunc; \ _XUnlockMutex (_Xglobal_lock); \ } static Cursor _XTryShapeCursor (Display *dpy, Font source_font, Font mask_font, unsigned int source_char, unsigned int mask_char, XColor _Xconst *foreground, XColor _Xconst *background) { TryShapeCursorFunc func; GetFunc (TryShapeCursorFunc, "XcursorTryShapeCursor", func); if (func) return (*func) (dpy, source_font, mask_font, source_char, mask_char, foreground, background); return None; } void _XNoticeCreateBitmap (Display *dpy, Pixmap pid, unsigned int width, unsigned int height) { NoticeCreateBitmapFunc func; GetFunc (NoticeCreateBitmapFunc, "XcursorNoticeCreateBitmap", func); if (func) (*func) (dpy, pid, width, height); } void _XNoticePutBitmap (Display *dpy, Drawable draw, XImage *image) { NoticePutBitmapFunc func; GetFunc (NoticePutBitmapFunc, "XcursorNoticePutBitmap", func); if (func) (*func) (dpy, draw, image); } Cursor _XTryShapeBitmapCursor (Display *dpy, Pixmap source, Pixmap mask, XColor *foreground, XColor *background, unsigned int x, unsigned int y) { TryShapeBitmapCursorFunc func; GetFunc (TryShapeBitmapCursorFunc, "XcursorTryShapeBitmapCursor", func); if (func) return (*func) (dpy, source, mask, foreground, background, x, y); return None; } #endif Cursor XCreateGlyphCursor(dpy, source_font, mask_font, source_char, mask_char, foreground, background) register Display *dpy; Font source_font, mask_font; unsigned int source_char, mask_char; XColor _Xconst *foreground, *background; { Cursor cid; register xCreateGlyphCursorReq *req; #ifdef USE_DYNAMIC_XCURSOR cid = _XTryShapeCursor (dpy, source_font, mask_font, source_char, mask_char, foreground, background); if (cid) return cid; #endif LockDisplay(dpy); GetReq(CreateGlyphCursor, req); cid = req->cid = XAllocID(dpy); req->source = source_font; req->mask = mask_font; req->sourceChar = source_char; req->maskChar = mask_char; req->foreRed = foreground->red; req->foreGreen = foreground->green; req->foreBlue = foreground->blue; req->backRed = background->red; req->backGreen = background->green; req->backBlue = background->blue; UnlockDisplay(dpy); SyncHandle(); return (cid); }