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comparison src/loadso/win32/SDL_sysloadso.c @ 1361:19418e4422cb

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New configure-based build system. Still work in progress, but much improved
author Sam Lantinga <slouken@libsdl.org>
date Thu, 16 Feb 2006 10:11:48 +0000
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children c0a74f199ecf
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1360:70a9cfb4cf1b 1361:19418e4422cb
1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2006 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
23 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
24 /* System dependent library loading routines */
25
26 #include "SDL_windows.h"
27
28 #include "SDL_loadso.h"
29
30 void *SDL_LoadObject(const char *sofile)
31 {
32 void *handle = NULL;
33 const char *loaderror = "Unknown error";
34
35 #if defined(_WIN32_WCE)
36 char errbuf[512];
37
38 wchar_t *errbuf_t = SDL_malloc(512 * sizeof(wchar_t));
39 wchar_t *sofile_t = SDL_malloc((MAX_PATH+1) * sizeof(wchar_t));
40
41 MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, sofile, -1, sofile_t, MAX_PATH);
42 handle = (void *)LoadLibrary(sofile_t);
43
44 /* Generate an error message if all loads failed */
45 if ( handle == NULL ) {
46 FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS |
47 FORMAT_MESSAGE_FROM_SYSTEM),
48 NULL, GetLastError(),
49 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
50 errbuf_t, SDL_TABLESIZE(errbuf), NULL);
51 WideCharToMultiByte(CP_ACP, 0, errbuf_t, -1, errbuf, 511, NULL, NULL);
52 loaderror = errbuf;
53 }
54
55 SDL_free(sofile_t);
56 SDL_free(errbuf_t);
57
58 #else /*if defined(WIN32)*/
59 char errbuf[512];
60
61 handle = (void *)LoadLibrary(sofile);
62
63 /* Generate an error message if all loads failed */
64 if ( handle == NULL ) {
65 FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS |
66 FORMAT_MESSAGE_FROM_SYSTEM),
67 NULL, GetLastError(),
68 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
69 errbuf, SDL_TABLESIZE(errbuf), NULL);
70 loaderror = errbuf;
71 }
72 #endif
73
74 if ( handle == NULL ) {
75 SDL_SetError("Failed loading %s: %s", sofile, loaderror);
76 }
77 return(handle);
78 }
79
80 void *SDL_LoadFunction(void *handle, const char *name)
81 {
82 void *symbol = NULL;
83 const char *loaderror = "Unknown error";
84
85 #if defined(_WIN32_WCE)
86 char errbuf[512];
87 int length = SDL_strlen(name);
88
89 wchar_t *name_t = SDL_malloc((length + 1) * sizeof(wchar_t));
90 wchar_t *errbuf_t = SDL_malloc(512 * sizeof(wchar_t));
91
92 MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, name, -1, name_t, length);
93
94 symbol = (void *)GetProcAddress((HMODULE)handle, name_t);
95 if ( symbol == NULL ) {
96 FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS |
97 FORMAT_MESSAGE_FROM_SYSTEM),
98 NULL, GetLastError(),
99 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
100 errbuf_t, SDL_TABLESIZE(errbuf), NULL);
101 WideCharToMultiByte(CP_ACP, 0, errbuf_t, -1, errbuf, 511, NULL, NULL);
102 loaderror = errbuf;
103 }
104
105 SDL_free(name_t);
106 SDL_free(errbuf_t);
107
108 #else /*if defined(WIN32)*/
109 char errbuf[512];
110
111 symbol = (void *)GetProcAddress((HMODULE)handle, name);
112 if ( symbol == NULL ) {
113 FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS |
114 FORMAT_MESSAGE_FROM_SYSTEM),
115 NULL, GetLastError(),
116 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
117 errbuf, SDL_TABLESIZE(errbuf), NULL);
118 loaderror = errbuf;
119 }
120 #endif
121
122 if ( symbol == NULL ) {
123 SDL_SetError("Failed loading %s: %s", name, loaderror);
124 }
125 return(symbol);
126 }
127
128 void SDL_UnloadObject(void *handle)
129 {
130 if ( handle != NULL ) {
131 FreeLibrary((HMODULE)handle);
132 }
133 }
134