diff src/video/x11/SDL_x11dyn.h @ 1168:045f186426e1

Dynamically load X11 libraries like we currently do for alsa, esd, etc. This allows you to run an SDL program on a system without Xlib, since it'll just report the x11 target unavailable at runtime.
author Ryan C. Gordon <icculus@icculus.org>
date Sat, 05 Nov 2005 19:53:37 +0000
parents
children 4b3e2294782d
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/video/x11/SDL_x11dyn.h	Sat Nov 05 19:53:37 2005 +0000
@@ -0,0 +1,71 @@
+/*
+    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
+*/
+
+#ifndef _SDL_x11dyn_h
+#define _SDL_x11dyn_h
+
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/Xatom.h>
+#include <X11/Xproto.h>
+#include <X11/Xlibint.h>
+#include <X11/extensions/extutil.h>
+
+#ifndef NO_SHARED_MEMORY
+#include <sys/ipc.h>
+#include <sys/shm.h>
+#include <X11/extensions/XShm.h>
+#endif
+
+/*
+ * Never reference Xlib directly...we might load it dynamically at runtime.
+ *  Even if we don't, for readability, we still use the function pointers
+ *  (although the symbol resolution will be done by the loader in that case).
+ *
+ * We define SDL_X11_SYM and include SDL_x11sym.h to accomplish various
+ *  goals, without having to duplicate those function signatures.
+ */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* evil function signatures... */
+typedef Bool (*SDL_X11_XESetWireToEventRetType)(Display*,XEvent*,xEvent*);
+typedef int (*SDL_X11_XSynchronizeRetType)(Display*);
+typedef Status (*SDL_X11_XESetEventToWireRetType)(Display*,XEvent*,xEvent*);
+
+#define SDL_X11_SYM(ret,fn,params) extern ret (*p##fn) params;
+#include "SDL_x11sym.h"
+#undef SDL_X11_SYM
+
+/* Macro in the xlib headers, not an actual symbol... */
+#define pXDestroyImage XDestroyImage
+
+int SDL_X11_LoadSymbols(void);
+void SDL_X11_UnloadSymbols(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* !defined _SDL_x11dyn_h */
+