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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,195 @@ | ||
| /* | ||
| Simple DirectMedia Layer | ||
| Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org> | ||
| This software is provided 'as-is', without any express or implied | ||
| warranty. In no event will the authors be held liable for any damages | ||
| arising from the use of this software. | ||
| Permission is granted to anyone to use this software for any purpose, | ||
| including commercial applications, and to alter it and redistribute it | ||
| freely, subject to the following restrictions: | ||
| 1. The origin of this software must not be misrepresented; you must not | ||
| claim that you wrote the original software. If you use this software | ||
| in a product, an acknowledgment in the product documentation would be | ||
| appreciated but is not required. | ||
| 2. Altered source versions must be plainly marked as such, and must not be | ||
| misrepresented as being the original software. | ||
| 3. This notice may not be removed or altered from any source distribution. | ||
| */ | ||
| #include "../../SDL_internal.h" | ||
|
|
||
| #if SDL_VIDEO_DRIVER_WAYLAND | ||
|
|
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| #define DEBUG_DYNAMIC_WAYLAND 0 | ||
|
|
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| #include "SDL_waylanddyn.h" | ||
|
|
||
| #if DEBUG_DYNAMIC_WAYLAND | ||
| #include "SDL_log.h" | ||
| #endif | ||
|
|
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| #ifdef SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC | ||
|
|
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| #include "SDL_name.h" | ||
| #include "SDL_loadso.h" | ||
|
|
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| typedef struct | ||
| { | ||
| void *lib; | ||
| const char *libname; | ||
| } waylanddynlib; | ||
|
|
||
| #ifndef SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC | ||
| #define SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC NULL | ||
| #endif | ||
| #ifndef SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_EGL | ||
| #define SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_EGL NULL | ||
| #endif | ||
| #ifndef SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_CURSOR | ||
| #define SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_CURSOR NULL | ||
| #endif | ||
| #ifndef SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_XKBCOMMON | ||
| #define SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_XKBCOMMON NULL | ||
| #endif | ||
|
|
||
| static waylanddynlib waylandlibs[] = { | ||
| {NULL, SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC}, | ||
| {NULL, SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_EGL}, | ||
| {NULL, SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_CURSOR}, | ||
| {NULL, SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_XKBCOMMON} | ||
| }; | ||
|
|
||
| static void * | ||
| WAYLAND_GetSym(const char *fnname, int *pHasModule) | ||
| { | ||
| int i; | ||
| void *fn = NULL; | ||
| for (i = 0; i < SDL_TABLESIZE(waylandlibs); i++) { | ||
| if (waylandlibs[i].lib != NULL) { | ||
| fn = SDL_LoadFunction(waylandlibs[i].lib, fnname); | ||
| if (fn != NULL) | ||
| break; | ||
| } | ||
| } | ||
|
|
||
| #if DEBUG_DYNAMIC_WAYLAND | ||
| if (fn != NULL) | ||
| SDL_Log("WAYLAND: Found '%s' in %s (%p)\n", fnname, waylandlibs[i].libname, fn); | ||
| else | ||
| SDL_Log("WAYLAND: Symbol '%s' NOT FOUND!\n", fnname); | ||
| #endif | ||
|
|
||
| if (fn == NULL) | ||
| *pHasModule = 0; /* kill this module. */ | ||
|
|
||
| return fn; | ||
| } | ||
|
|
||
| #endif /* SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC */ | ||
|
|
||
| /* Define all the function pointers and wrappers... */ | ||
| #define SDL_WAYLAND_MODULE(modname) int SDL_WAYLAND_HAVE_##modname = 0; | ||
| #define SDL_WAYLAND_SYM(rc,fn,params) SDL_DYNWAYLANDFN_##fn WAYLAND_##fn = NULL; | ||
| #define SDL_WAYLAND_INTERFACE(iface) const struct wl_interface *WAYLAND_##iface = NULL; | ||
| #include "SDL_waylandsym.h" | ||
| #undef SDL_WAYLAND_MODULE | ||
| #undef SDL_WAYLAND_SYM | ||
| #undef SDL_WAYLAND_INTERFACE | ||
|
|
||
| static int wayland_load_refcount = 0; | ||
|
|
||
| void | ||
| SDL_WAYLAND_UnloadSymbols(void) | ||
| { | ||
| /* Don't actually unload if more than one module is using the libs... */ | ||
| if (wayland_load_refcount > 0) { | ||
| if (--wayland_load_refcount == 0) { | ||
| #ifdef SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC | ||
| int i; | ||
| #endif | ||
|
|
||
| /* set all the function pointers to NULL. */ | ||
| #define SDL_WAYLAND_MODULE(modname) SDL_WAYLAND_HAVE_##modname = 0; | ||
| #define SDL_WAYLAND_SYM(rc,fn,params) WAYLAND_##fn = NULL; | ||
| #define SDL_WAYLAND_INTERFACE(iface) WAYLAND_##iface = NULL; | ||
| #include "SDL_waylandsym.h" | ||
| #undef SDL_WAYLAND_MODULE | ||
| #undef SDL_WAYLAND_SYM | ||
| #undef SDL_WAYLAND_INTERFACE | ||
|
|
||
|
|
||
| #ifdef SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC | ||
| for (i = 0; i < SDL_TABLESIZE(waylandlibs); i++) { | ||
| if (waylandlibs[i].lib != NULL) { | ||
| SDL_UnloadObject(waylandlibs[i].lib); | ||
| waylandlibs[i].lib = NULL; | ||
| } | ||
| } | ||
| #endif | ||
| } | ||
| } | ||
| } | ||
|
|
||
| /* returns non-zero if all needed symbols were loaded. */ | ||
| int | ||
| SDL_WAYLAND_LoadSymbols(void) | ||
| { | ||
| int rc = 1; /* always succeed if not using Dynamic WAYLAND stuff. */ | ||
|
|
||
| /* deal with multiple modules (dga, wayland, etc) needing these symbols... */ | ||
| if (wayland_load_refcount++ == 0) { | ||
| #ifdef SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC | ||
| int i; | ||
| int *thismod = NULL; | ||
| for (i = 0; i < SDL_TABLESIZE(waylandlibs); i++) { | ||
| if (waylandlibs[i].libname != NULL) { | ||
| waylandlibs[i].lib = SDL_LoadObject(waylandlibs[i].libname); | ||
| } | ||
| } | ||
|
|
||
| #define SDL_WAYLAND_MODULE(modname) SDL_WAYLAND_HAVE_##modname = 1; /* default yes */ | ||
| #define SDL_WAYLAND_SYM(rc,fn,params) | ||
| #define SDL_WAYLAND_INTERFACE(iface) | ||
| #include "SDL_waylandsym.h" | ||
| #undef SDL_WAYLAND_MODULE | ||
| #undef SDL_WAYLAND_SYM | ||
| #undef SDL_WAYLAND_INTERFACE | ||
|
|
||
| #define SDL_WAYLAND_MODULE(modname) thismod = &SDL_WAYLAND_HAVE_##modname; | ||
| #define SDL_WAYLAND_SYM(rc,fn,params) WAYLAND_##fn = (SDL_DYNWAYLANDFN_##fn) WAYLAND_GetSym(#fn,thismod); | ||
| #define SDL_WAYLAND_INTERFACE(iface) WAYLAND_##iface = (struct wl_interface *) WAYLAND_GetSym(#iface,thismod); | ||
| #include "SDL_waylandsym.h" | ||
| #undef SDL_WAYLAND_MODULE | ||
| #undef SDL_WAYLAND_SYM | ||
| #undef SDL_WAYLAND_INTERFACE | ||
|
|
||
| if (SDL_WAYLAND_HAVE_WAYLAND_CLIENT) { | ||
| /* all required symbols loaded. */ | ||
| SDL_ClearError(); | ||
| } else { | ||
| /* in case something got loaded... */ | ||
| SDL_WAYLAND_UnloadSymbols(); | ||
| rc = 0; | ||
| } | ||
|
|
||
| #else /* no dynamic WAYLAND */ | ||
|
|
||
| #define SDL_WAYLAND_MODULE(modname) SDL_WAYLAND_HAVE_##modname = 1; /* default yes */ | ||
| #define SDL_WAYLAND_SYM(rc,fn,params) WAYLAND_##fn = fn; | ||
| #define SDL_WAYLAND_INTERFACE(iface) WAYLAND_##iface = &iface; | ||
| #include "SDL_waylandsym.h" | ||
| #undef SDL_WAYLAND_MODULE | ||
| #undef SDL_WAYLAND_SYM | ||
| #undef SDL_WAYLAND_INTERFACE | ||
|
|
||
| #endif | ||
| } | ||
|
|
||
| return rc; | ||
| } | ||
|
|
||
| #endif /* SDL_VIDEO_DRIVER_WAYLAND */ | ||
|
|
||
| /* vi: set ts=4 sw=4 expandtab: */ |
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