e14743d1 |
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_WIN32 |
25 | |
26 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
27 | /* System dependent library loading routines */ |
28 | |
29 | #define WIN32_LEAN_AND_MEAN |
30 | #include <windows.h> |
31 | |
32 | #include "SDL_loadso.h" |
33 | |
34 | void *SDL_LoadObject(const char *sofile) |
35 | { |
36 | void *handle = NULL; |
37 | const char *loaderror = "Unknown error"; |
38 | |
39 | #if defined(_WIN32_WCE) |
40 | char errbuf[512]; |
41 | |
42 | wchar_t *errbuf_t = SDL_malloc(512 * sizeof(wchar_t)); |
43 | wchar_t *sofile_t = SDL_malloc((MAX_PATH+1) * sizeof(wchar_t)); |
44 | |
45 | MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, sofile, -1, sofile_t, MAX_PATH); |
46 | handle = (void *)LoadLibrary(sofile_t); |
47 | |
48 | /* Generate an error message if all loads failed */ |
49 | if ( handle == NULL ) { |
50 | FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS | |
51 | FORMAT_MESSAGE_FROM_SYSTEM), |
52 | NULL, GetLastError(), |
53 | MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), |
54 | errbuf_t, SDL_arraysize(errbuf), NULL); |
55 | WideCharToMultiByte(CP_ACP, 0, errbuf_t, -1, errbuf, 511, NULL, NULL); |
56 | loaderror = errbuf; |
57 | } |
58 | |
59 | SDL_free(sofile_t); |
60 | SDL_free(errbuf_t); |
61 | |
62 | #else /*if defined(__WIN32__)*/ |
63 | char errbuf[512]; |
64 | |
65 | handle = (void *)LoadLibrary(sofile); |
66 | |
67 | /* Generate an error message if all loads failed */ |
68 | if ( handle == NULL ) { |
69 | FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS | |
70 | FORMAT_MESSAGE_FROM_SYSTEM), |
71 | NULL, GetLastError(), |
72 | MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), |
73 | errbuf, SDL_arraysize(errbuf), NULL); |
74 | loaderror = errbuf; |
75 | } |
76 | #endif |
77 | |
78 | if ( handle == NULL ) { |
79 | SDL_SetError("Failed loading %s: %s", sofile, loaderror); |
80 | } |
81 | return(handle); |
82 | } |
83 | |
84 | void *SDL_LoadFunction(void *handle, const char *name) |
85 | { |
86 | void *symbol = NULL; |
87 | const char *loaderror = "Unknown error"; |
88 | |
89 | #if defined(_WIN32_WCE) |
90 | char errbuf[512]; |
91 | int length = SDL_strlen(name); |
92 | |
93 | wchar_t *name_t = SDL_malloc((length + 1) * sizeof(wchar_t)); |
94 | wchar_t *errbuf_t = SDL_malloc(512 * sizeof(wchar_t)); |
95 | |
96 | MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, name, -1, name_t, length+1); |
97 | |
98 | symbol = (void *)GetProcAddress((HMODULE)handle, name_t); |
99 | if ( symbol == NULL ) { |
100 | FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS | |
101 | FORMAT_MESSAGE_FROM_SYSTEM), |
102 | NULL, GetLastError(), |
103 | MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), |
104 | errbuf_t, SDL_arraysize(errbuf), NULL); |
105 | WideCharToMultiByte(CP_ACP, 0, errbuf_t, -1, errbuf, 511, NULL, NULL); |
106 | loaderror = errbuf; |
107 | } |
108 | |
109 | SDL_free(name_t); |
110 | SDL_free(errbuf_t); |
111 | |
112 | #else /*if defined(WIN32)*/ |
113 | char errbuf[512]; |
114 | |
115 | symbol = (void *)GetProcAddress((HMODULE)handle, name); |
116 | if ( symbol == NULL ) { |
117 | FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS | |
118 | FORMAT_MESSAGE_FROM_SYSTEM), |
119 | NULL, GetLastError(), |
120 | MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), |
121 | errbuf, SDL_arraysize(errbuf), NULL); |
122 | loaderror = errbuf; |
123 | } |
124 | #endif |
125 | |
126 | if ( symbol == NULL ) { |
127 | SDL_SetError("Failed loading %s: %s", name, loaderror); |
128 | } |
129 | return(symbol); |
130 | } |
131 | |
132 | void SDL_UnloadObject(void *handle) |
133 | { |
134 | if ( handle != NULL ) { |
135 | FreeLibrary((HMODULE)handle); |
136 | } |
137 | } |
138 | |
139 | #endif /* SDL_LOADSO_WIN32 */ |