src/video/x11/SDL_x11dyn.c
changeset 1361 19418e4422cb
parent 1245 fe7d081a4955
child 1402 d910939febfa
equal deleted inserted replaced
1360:70a9cfb4cf1b 1361:19418e4422cb
    22 
    22 
    23 #if 0
    23 #if 0
    24 #define DEBUG_DYNAMIC_X11 1
    24 #define DEBUG_DYNAMIC_X11 1
    25 #endif
    25 #endif
    26 
    26 
       
    27 #include "SDL_config.h"
       
    28 
    27 #define __SDL_NO_REDEFINE_X11_HEADER_SYMS 1
    29 #define __SDL_NO_REDEFINE_X11_HEADER_SYMS 1
    28 #include "SDL_x11dyn.h"
    30 #include "SDL_x11dyn.h"
    29 
    31 
    30 #ifdef DEBUG_DYNAMIC_X11
    32 #ifdef DEBUG_DYNAMIC_X11
    31 #include <stdio.h>
    33 #include <stdio.h>
    32 #endif
    34 #endif
    33 
    35 
    34 #ifdef X11_DYNAMIC
    36 #ifdef SDL_VIDEO_DRIVER_X11_DYNAMIC
    35 #include <dlfcn.h>
    37 #include <dlfcn.h>
    36 #include "SDL_name.h"
    38 #include "SDL_name.h"
    37 #include "SDL_loadso.h"
    39 #include "SDL_loadso.h"
    38 static const char *x11_library = X11_DYNAMIC;
    40 static const char *x11_library = SDL_VIDEO_DRIVER_X11_DYNAMIC;
    39 static void *x11_handle = NULL;
    41 static void *x11_handle = NULL;
    40 static const char *x11ext_library = X11EXT_DYNAMIC;
    42 static const char *x11ext_library = SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT;
    41 static void *x11ext_handle = NULL;
    43 static void *x11ext_handle = NULL;
    42 
    44 
    43 static void *X11_GetSym(int required, const char *fnname, int *rc)
    45 static void *X11_GetSym(int required, const char *fnname, int *rc)
    44 {
    46 {
    45 	void *fn = NULL;
    47 	void *fn = NULL;
    63 		*rc = ((fn != NULL) || (!required));
    65 		*rc = ((fn != NULL) || (!required));
    64 	}
    66 	}
    65 
    67 
    66 	return fn;
    68 	return fn;
    67 }
    69 }
    68 #endif  /* defined X11_DYNAMIC */
    70 #endif  /* SDL_VIDEO_DRIVER_X11_DYNAMIC */
    69 
    71 
    70 /* Define all the function pointers... */
    72 /* Define all the function pointers... */
    71 #define SDL_X11_SYM(req,ret,fn,params) ret (*p##fn) params = NULL;
    73 #define SDL_X11_SYM(req,ret,fn,params) ret (*p##fn) params = NULL;
    72 #include "SDL_x11sym.h"
    74 #include "SDL_x11sym.h"
    73 #undef SDL_X11_SYM
    75 #undef SDL_X11_SYM
    82 			/* set all the function pointers to NULL. */
    84 			/* set all the function pointers to NULL. */
    83 			#define SDL_X11_SYM(req,ret,fn,params) p##fn = NULL;
    85 			#define SDL_X11_SYM(req,ret,fn,params) p##fn = NULL;
    84 			#include "SDL_x11sym.h"
    86 			#include "SDL_x11sym.h"
    85 			#undef SDL_X11_SYM
    87 			#undef SDL_X11_SYM
    86 
    88 
    87 			#ifdef X11_DYNAMIC
    89 			#ifdef SDL_VIDEO_DRIVER_X11_DYNAMIC
    88 			if (x11_handle != NULL) {
    90 			if (x11_handle != NULL) {
    89 				SDL_UnloadObject(x11_handle);
    91 				SDL_UnloadObject(x11_handle);
    90 				x11_handle = NULL;
    92 				x11_handle = NULL;
    91 			}
    93 			}
    92 			if (x11ext_handle != NULL) {
    94 			if (x11ext_handle != NULL) {
   103 {
   105 {
   104 	int rc = 1;
   106 	int rc = 1;
   105 
   107 
   106     /* deal with multiple modules (dga, x11, etc) needing these symbols... */
   108     /* deal with multiple modules (dga, x11, etc) needing these symbols... */
   107 	if (x11_load_refcount++ == 0) {
   109 	if (x11_load_refcount++ == 0) {
   108 		#ifdef X11_DYNAMIC
   110 		#ifdef SDL_VIDEO_DRIVER_X11_DYNAMIC
   109 			x11_handle = SDL_LoadObject(x11_library);
   111 			x11_handle = SDL_LoadObject(x11_library);
   110 			x11ext_handle = SDL_LoadObject(x11ext_library);
   112 			x11ext_handle = SDL_LoadObject(x11ext_library);
   111 			rc = ((x11_handle != NULL) && (x11ext_handle != NULL));
   113 			rc = ((x11_handle != NULL) && (x11ext_handle != NULL));
   112 			#define SDL_X11_SYM(req,r,fn,arg) p##fn = X11_GetSym(req,#fn, &rc);
   114 			#define SDL_X11_SYM(req,r,fn,arg) p##fn = X11_GetSym(req,#fn, &rc);
   113 			#include "SDL_x11sym.h"
   115 			#include "SDL_x11sym.h"