Mercurial > sdl-ios-xcode
view src/video/x11/SDL_x11dyn.c @ 2306:1a8bab15a45d
Fixed compile errors
author | Sam Lantinga <slouken@libsdl.org> |
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date | Thu, 07 Feb 2008 16:00:29 +0000 |
parents | 2c835d58faad |
children | c7bcf84ba1b9 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2004 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" #define DEBUG_DYNAMIC_X11 0 #include "SDL_x11dyn.h" #if DEBUG_DYNAMIC_X11 #include <stdio.h> #endif #ifdef SDL_VIDEO_DRIVER_X11_DYNAMIC #include "SDL_name.h" #include "SDL_loadso.h" typedef struct { void *lib; const char *libname; } x11dynlib; #ifndef SDL_VIDEO_DRIVER_X11_DYNAMIC #define SDL_VIDEO_DRIVER_X11_DYNAMIC NULL #endif #ifndef SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT #define SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT NULL #endif #ifndef SDL_VIDEO_DRIVER_X11_DYNAMIC_XRENDER #define SDL_VIDEO_DRIVER_X11_DYNAMIC_XRENDER NULL #endif #ifndef SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR #define SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR NULL #endif static x11dynlib x11libs[] = { {NULL, SDL_VIDEO_DRIVER_X11_DYNAMIC}, {NULL, SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT}, {NULL, SDL_VIDEO_DRIVER_X11_DYNAMIC_XRENDER}, {NULL, SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR}, }; static void X11_GetSym(const char *fnname, int *rc, void **fn) { int i; for (i = 0; i < SDL_TABLESIZE(x11libs); i++) { if (x11libs[i].lib != NULL) { *fn = SDL_LoadFunction(x11libs[i].lib, fnname); if (*fn != NULL) break; } } #if DEBUG_DYNAMIC_X11 if (*fn != NULL) printf("X11: Found '%s' in %s (%p)\n", fnname, x11libs[i].libname, *fn); else printf("X11: Symbol '%s' NOT FOUND!\n", fnname); #endif if (*fn == NULL) *rc = 0; /* kill this module. */ } /* Define all the function pointers and wrappers... */ #define SDL_X11_MODULE(modname) #define SDL_X11_SYM(rc,fn,params,args,ret) \ static rc (*p##fn) params = NULL; \ rc fn params { ret p##fn args ; } #include "SDL_x11sym.h" #undef SDL_X11_MODULE #undef SDL_X11_SYM #endif /* SDL_VIDEO_DRIVER_X11_DYNAMIC */ /* Annoying varargs entry point... */ #ifdef X_HAVE_UTF8_STRING XIC(*pXCreateIC) (XIM,...) = NULL; #endif /* These SDL_X11_HAVE_* flags are here whether you have dynamic X11 or not. */ #define SDL_X11_MODULE(modname) int SDL_X11_HAVE_##modname = 1; #define SDL_X11_SYM(rc,fn,params,args,ret) #include "SDL_x11sym.h" #undef SDL_X11_MODULE #undef SDL_X11_SYM static int x11_load_refcount = 0; void SDL_X11_UnloadSymbols(void) { #ifdef SDL_VIDEO_DRIVER_X11_DYNAMIC /* Don't actually unload if more than one module is using the libs... */ if (x11_load_refcount > 0) { if (--x11_load_refcount == 0) { int i; /* set all the function pointers to NULL. */ #define SDL_X11_MODULE(modname) SDL_X11_HAVE_##modname = 1; #define SDL_X11_SYM(rc,fn,params,args,ret) p##fn = NULL; #include "SDL_x11sym.h" #undef SDL_X11_MODULE #undef SDL_X11_SYM #ifdef X_HAVE_UTF8_STRING pXCreateIC = NULL; #endif for (i = 0; i < SDL_TABLESIZE(x11libs); i++) { if (x11libs[i].lib != NULL) { SDL_UnloadObject(x11libs[i].lib); x11libs[i].lib = NULL; } } } } #endif } /* returns non-zero if all needed symbols were loaded. */ int SDL_X11_LoadSymbols(void) { int rc = 1; /* always succeed if not using Dynamic X11 stuff. */ #ifdef SDL_VIDEO_DRIVER_X11_DYNAMIC /* deal with multiple modules (dga, x11, etc) needing these symbols... */ if (x11_load_refcount++ == 0) { int i; int *thismod = NULL; for (i = 0; i < SDL_TABLESIZE(x11libs); i++) { if (x11libs[i].libname != NULL) { x11libs[i].lib = SDL_LoadObject(x11libs[i].libname); } } #define SDL_X11_MODULE(modname) thismod = &SDL_X11_HAVE_##modname; #define SDL_X11_SYM(a,fn,x,y,z) X11_GetSym(#fn,thismod,(void**)&p##fn); #include "SDL_x11sym.h" #undef SDL_X11_MODULE #undef SDL_X11_SYM #ifdef X_HAVE_UTF8_STRING X11_GetSym("XCreateIC", &SDL_X11_HAVE_UTF8, (void **) &pXCreateIC); #endif if (SDL_X11_HAVE_BASEXLIB) { /* all required symbols loaded. */ SDL_ClearError(); } else { /* in case something got loaded... */ SDL_X11_UnloadSymbols(); rc = 0; } } #else #ifdef X_HAVE_UTF8_STRING pXCreateIC = XCreateIC; #endif #endif return rc; } /* vi: set ts=4 sw=4 expandtab: */