| 1 | /* |
| 2 | SDL - Simple DirectMedia Layer |
| 3 | Copyright (C) 1997-2009 Sam Lantinga |
| 4 | |
| 5 | This library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | This library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with this library; if not, write to the Free Software |
| 17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | |
| 19 | Sam Lantinga |
| 20 | slouken@libsdl.org |
| 21 | */ |
| 22 | #include "SDL_config.h" |
| 23 | |
| 24 | #ifdef SDL_LOADSO_OS2 |
| 25 | |
| 26 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
| 27 | /* System dependent library loading routines */ |
| 28 | |
| 29 | #include <stdio.h> |
| 30 | #define INCL_DOSERRORS |
| 31 | #define INCL_DOSMODULEMGR |
| 32 | #include <os2.h> |
| 33 | |
| 34 | #include "SDL_loadso.h" |
| 35 | |
| 36 | void *SDL_LoadObject(const char *sofile) |
| 37 | { |
| 38 | HMODULE handle = NULL; |
| 39 | char buf[512]; |
| 40 | APIRET ulrc = DosLoadModule(buf, sizeof (buf), (char *) sofile, &handle); |
| 41 | |
| 42 | /* Generate an error message if all loads failed */ |
| 43 | if ((ulrc != NO_ERROR) || (handle == NULL)) |
| 44 | SDL_SetError("Failed loading %s: %s", sofile, buf); |
| 45 | |
| 46 | return((void *) handle); |
| 47 | } |
| 48 | |
| 49 | void *SDL_LoadFunction(void *handle, const char *name) |
| 50 | { |
| 51 | const char *loaderror = "Unknown error"; |
| 52 | void *symbol = NULL; |
| 53 | APIRET ulrc = DosQueryProcAddr((HMODULE)handle, 0, (char *)name, &symbol); |
| 54 | if (ulrc == ERROR_INVALID_HANDLE) |
| 55 | loaderror = "Invalid module handle"; |
| 56 | else if (ulrc == ERROR_INVALID_NAME) |
| 57 | loaderror = "Symbol not found"; |
| 58 | |
| 59 | if (symbol == NULL) |
| 60 | SDL_SetError("Failed loading %s: %s", name, loaderror); |
| 61 | |
| 62 | return(symbol); |
| 63 | } |
| 64 | |
| 65 | void SDL_UnloadObject(void *handle) |
| 66 | { |
| 67 | if ( handle != NULL ) |
| 68 | DosFreeModule((HMODULE) handle); |
| 69 | } |
| 70 | |
| 71 | #endif /* SDL_LOADSO_OS2 */ |