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comparison src/loadso/windows/SDL_loadso.c @ 1173:e9cf8c1b4590

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Split up src/SDL_loadso.c into platform directories.
author Ryan C. Gordon <icculus@icculus.org>
date Thu, 17 Nov 2005 03:15:05 +0000
parents
children c9b51268668f
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1172:f69f4d25fb20 1173:e9cf8c1b4590
1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2004 Sam Lantinga
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public
7 License as published by the Free Software Foundation; either
8 version 2 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 Library General Public License for more details.
14
15 You should have received a copy of the GNU Library General Public
16 License along with this library; if not, write to the Free
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18
19 Sam Lantinga
20 slouken@libsdl.org
21 */
22
23 #ifdef SAVE_RCSID
24 static char rcsid =
25 "@(#) $Id$";
26 #endif
27
28 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
29 /* System dependent library loading routines */
30
31 #if !SDL_INTERNAL_BUILDING_LOADSO
32 #error Do not compile directly...compile src/SDL_loadso.c instead!
33 #endif
34
35 #if !defined(WIN32) && !defined(_WIN32_WCE)
36 #error Compiling for the wrong platform?
37 #endif
38
39 #include <stdio.h>
40 #include <windows.h>
41
42 #include "SDL_types.h"
43 #include "SDL_error.h"
44 #include "SDL_loadso.h"
45
46 void *SDL_LoadObject(const char *sofile)
47 {
48 void *handle = NULL;
49 const char *loaderror = "Unknown error";
50
51 #if defined(_WIN32_WCE)
52 char errbuf[512];
53
54 wchar_t *errbuf_t = malloc(512 * sizeof(wchar_t));
55 wchar_t *sofile_t = malloc((MAX_PATH+1) * sizeof(wchar_t));
56
57 MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, sofile, -1, sofile_t, MAX_PATH);
58 handle = (void *)LoadLibrary(sofile_t);
59
60 /* Generate an error message if all loads failed */
61 if ( handle == NULL ) {
62 FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS |
63 FORMAT_MESSAGE_FROM_SYSTEM),
64 NULL, GetLastError(),
65 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
66 errbuf_t, SDL_TABLESIZE(errbuf), NULL);
67 WideCharToMultiByte(CP_ACP, 0, errbuf_t, -1, errbuf, 511, NULL, NULL);
68 loaderror = errbuf;
69 }
70
71 free(sofile_t);
72 free(errbuf_t);
73
74 #else /*if defined(WIN32)*/
75 char errbuf[512];
76
77 handle = (void *)LoadLibrary(sofile);
78
79 /* Generate an error message if all loads failed */
80 if ( handle == NULL ) {
81 FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS |
82 FORMAT_MESSAGE_FROM_SYSTEM),
83 NULL, GetLastError(),
84 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
85 errbuf, SDL_TABLESIZE(errbuf), NULL);
86 loaderror = errbuf;
87 }
88 #endif
89
90 if ( handle == NULL ) {
91 SDL_SetError("Failed loading %s: %s", sofile, loaderror);
92 }
93 return(handle);
94 }
95
96 void *SDL_LoadFunction(void *handle, const char *name)
97 {
98 void *symbol = NULL;
99 const char *loaderror = "Unknown error";
100
101 #if defined(_WIN32_WCE)
102 char errbuf[512];
103 int length = strlen(name);
104
105 wchar_t *name_t = malloc((length + 1) * sizeof(wchar_t));
106 wchar_t *errbuf_t = malloc(512 * sizeof(wchar_t));
107
108 MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, name, -1, name_t, length);
109
110 symbol = (void *)GetProcAddress((HMODULE)handle, name_t);
111 if ( symbol == NULL ) {
112 FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS |
113 FORMAT_MESSAGE_FROM_SYSTEM),
114 NULL, GetLastError(),
115 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
116 errbuf_t, SDL_TABLESIZE(errbuf), NULL);
117 WideCharToMultiByte(CP_ACP, 0, errbuf_t, -1, errbuf, 511, NULL, NULL);
118 loaderror = errbuf;
119 }
120
121 free(name_t);
122 free(errbuf_t);
123
124 #else /*if defined(WIN32)*/
125 char errbuf[512];
126
127 symbol = (void *)GetProcAddress((HMODULE)handle, name);
128 if ( symbol == NULL ) {
129 FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS |
130 FORMAT_MESSAGE_FROM_SYSTEM),
131 NULL, GetLastError(),
132 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
133 errbuf, SDL_TABLESIZE(errbuf), NULL);
134 loaderror = errbuf;
135 }
136 #endif
137
138 if ( symbol == NULL ) {
139 SDL_SetError("Failed loading %s: %s", name, loaderror);
140 }
141 return(symbol);
142 }
143
144 void SDL_UnloadObject(void *handle)
145 {
146 if ( handle != NULL ) {
147 FreeLibrary((HMODULE)handle);
148 }
149 }
150