| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2019 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_DIRECTFB |
| |
| #include "SDL_DirectFB_video.h" |
| #include "SDL_DirectFB_dyn.h" |
| |
| #ifdef SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC |
| #include "SDL_name.h" |
| #include "SDL_loadso.h" |
| |
| #define DFB_SYM(ret, name, args, al, func) ret (*name) args; |
| static struct _SDL_DirectFB_Symbols |
| { |
| DFB_SYMS |
| const unsigned int *directfb_major_version; |
| const unsigned int *directfb_minor_version; |
| const unsigned int *directfb_micro_version; |
| } SDL_DirectFB_Symbols; |
| #undef DFB_SYM |
| |
| #define DFB_SYM(ret, name, args, al, func) ret name args { func SDL_DirectFB_Symbols.name al ; } |
| DFB_SYMS |
| #undef DFB_SYM |
| |
| static void *handle = NULL; |
| |
| int |
| SDL_DirectFB_LoadLibrary(void) |
| { |
| int retval = 0; |
| |
| if (handle == NULL) { |
| handle = SDL_LoadObject(SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC); |
| if (handle != NULL) { |
| retval = 1; |
| #define DFB_SYM(ret, name, args, al, func) if (!(SDL_DirectFB_Symbols.name = SDL_LoadFunction(handle, # name))) retval = 0; |
| DFB_SYMS |
| #undef DFB_SYM |
| if (! |
| (SDL_DirectFB_Symbols.directfb_major_version = |
| SDL_LoadFunction(handle, "directfb_major_version"))) |
| retval = 0; |
| if (! |
| (SDL_DirectFB_Symbols.directfb_minor_version = |
| SDL_LoadFunction(handle, "directfb_minor_version"))) |
| retval = 0; |
| if (! |
| (SDL_DirectFB_Symbols.directfb_micro_version = |
| SDL_LoadFunction(handle, "directfb_micro_version"))) |
| retval = 0; |
| } |
| } |
| if (retval) { |
| const char *stemp = DirectFBCheckVersion(DIRECTFB_MAJOR_VERSION, |
| DIRECTFB_MINOR_VERSION, |
| DIRECTFB_MICRO_VERSION); |
| /* Version Check */ |
| if (stemp != NULL) { |
| fprintf(stderr, |
| "DirectFB Lib: Version mismatch. Compiled: %d.%d.%d Library %d.%d.%d\n", |
| DIRECTFB_MAJOR_VERSION, DIRECTFB_MINOR_VERSION, |
| DIRECTFB_MICRO_VERSION, |
| *SDL_DirectFB_Symbols.directfb_major_version, |
| *SDL_DirectFB_Symbols.directfb_minor_version, |
| *SDL_DirectFB_Symbols.directfb_micro_version); |
| retval = 0; |
| } |
| } |
| if (!retval) |
| SDL_DirectFB_UnLoadLibrary(); |
| return retval; |
| } |
| |
| void |
| SDL_DirectFB_UnLoadLibrary(void) |
| { |
| if (handle != NULL) { |
| SDL_UnloadObject(handle); |
| handle = NULL; |
| } |
| } |
| |
| #else |
| int |
| SDL_DirectFB_LoadLibrary(void) |
| { |
| return 1; |
| } |
| |
| void |
| SDL_DirectFB_UnLoadLibrary(void) |
| { |
| } |
| #endif |
| |
| #endif /* SDL_VIDEO_DRIVER_DIRECTFB */ |