/
SDL_sysloadso.c
72 lines (55 loc) · 2.13 KB
1
2
/*
SDL - Simple DirectMedia Layer
3
Copyright (C) 1997-2012 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
11
12
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
13
Lesser General Public License for more details.
14
15
16
17
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18
19
20
21
Sam Lantinga
slouken@libsdl.org
*/
22
#include "SDL_config.h"
23
24
25
#ifdef SDL_LOADSO_OS2
26
27
28
29
30
31
32
33
34
35
36
37
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* System dependent library loading routines */
#include <stdio.h>
#define INCL_DOSERRORS
#define INCL_DOSMODULEMGR
#include <os2.h>
#include "SDL_loadso.h"
void *SDL_LoadObject(const char *sofile)
{
38
HMODULE handle = NULLHANDLE;
39
40
41
42
char buf[512];
APIRET ulrc = DosLoadModule(buf, sizeof (buf), (char *) sofile, &handle);
/* Generate an error message if all loads failed */
43
if ((ulrc != NO_ERROR) || (handle == NULLHANDLE))
44
45
46
47
48
49
50
51
SDL_SetError("Failed loading %s: %s", sofile, buf);
return((void *) handle);
}
void *SDL_LoadFunction(void *handle, const char *name)
{
const char *loaderror = "Unknown error";
52
PFN symbol = NULL;
53
APIRET ulrc = DosQueryProcAddr((HMODULE)handle, 0, (char *)name, &symbol);
54
55
56
57
58
59
60
61
62
if (ulrc == ERROR_INVALID_HANDLE)
loaderror = "Invalid module handle";
else if (ulrc == ERROR_INVALID_NAME)
loaderror = "Symbol not found";
if (symbol == NULL)
SDL_SetError("Failed loading %s: %s", name, loaderror);
63
return((void *) symbol);
64
65
66
67
68
69
70
71
}
void SDL_UnloadObject(void *handle)
{
if ( handle != NULL )
DosFreeModule((HMODULE) handle);
}
72
#endif /* SDL_LOADSO_OS2 */