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annotate src/loadso/win32/SDL_sysloadso.c @ 3697:f7b03b6838cb

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Fixed bug #926 Updated copyright to LGPL version 2.1 and year 2010
author Sam Lantinga <slouken@libsdl.org>
date Sun, 24 Jan 2010 21:10:53 +0000
parents f78ed7625325
children
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 #ifdef SDL_LOADSO_WIN32
92947e3a18db Make sure code is only compiled if the appropriate subsystem is enabled
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25
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26 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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27 /* System dependent library loading routines */
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28
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29 #define WIN32_LEAN_AND_MEAN
bb6839704ed6 SDL_windows.h is no longer necessary
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30 #include <windows.h>
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31
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32 #include "SDL_loadso.h"
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33
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34 void *
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35 SDL_LoadObject(const char *sofile)
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36 {
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37 void *handle = NULL;
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38 const char *loaderror = "Unknown error";
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39
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40 #if defined(_WIN32_WCE)
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41 char errbuf[512];
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42
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43 wchar_t *errbuf_t = SDL_malloc(512 * sizeof(wchar_t));
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44 wchar_t *sofile_t = SDL_malloc((MAX_PATH + 1) * sizeof(wchar_t));
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45
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46 MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, sofile, -1, sofile_t,
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47 MAX_PATH);
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48 handle = (void *) LoadLibrary(sofile_t);
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49
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50 /* Generate an error message if all loads failed */
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51 if (handle == NULL) {
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52 FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS |
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53 FORMAT_MESSAGE_FROM_SYSTEM),
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54 NULL, GetLastError(),
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55 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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56 errbuf_t, SDL_arraysize(errbuf), NULL);
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57 WideCharToMultiByte(CP_ACP, 0, errbuf_t, -1, errbuf, 511, NULL, NULL);
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58 loaderror = errbuf;
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59 }
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60
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61 SDL_free(sofile_t);
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62 SDL_free(errbuf_t);
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63
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64 #else /*if defined(__WIN32__) */
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65 char errbuf[512];
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66
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67 handle = (void *) LoadLibrary(sofile);
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68
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69 /* Generate an error message if all loads failed */
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70 if (handle == NULL) {
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71 FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS |
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72 FORMAT_MESSAGE_FROM_SYSTEM),
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73 NULL, GetLastError(),
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74 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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75 errbuf, SDL_arraysize(errbuf), NULL);
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76 loaderror = errbuf;
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77 }
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78 #endif
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79
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80 if (handle == NULL) {
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81 SDL_SetError("Failed loading %s: %s", sofile, loaderror);
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82 }
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83 return (handle);
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84 }
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85
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86 void *
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87 SDL_LoadFunction(void *handle, const char *name)
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88 {
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89 void *symbol = NULL;
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90 const char *loaderror = "Unknown error";
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91
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92 #if defined(_WIN32_WCE)
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93 char errbuf[512];
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94 int length = SDL_strlen(name);
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95
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96 wchar_t *name_t = SDL_malloc((length + 1) * sizeof(wchar_t));
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97 wchar_t *errbuf_t = SDL_malloc(512 * sizeof(wchar_t));
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98
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99 MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, name, -1, name_t, length + 1);
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100
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101 symbol = (void *) GetProcAddress((HMODULE) handle, name_t);
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102 if (symbol == NULL) {
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103 FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS |
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104 FORMAT_MESSAGE_FROM_SYSTEM),
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105 NULL, GetLastError(),
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106 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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107 errbuf_t, SDL_arraysize(errbuf), NULL);
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108 WideCharToMultiByte(CP_ACP, 0, errbuf_t, -1, errbuf, 511, NULL, NULL);
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109 loaderror = errbuf;
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110 }
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111
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112 SDL_free(name_t);
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113 SDL_free(errbuf_t);
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114
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115 #else /*if defined(WIN32) */
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116 char errbuf[512];
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117
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118 symbol = (void *) GetProcAddress((HMODULE) handle, name);
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119 if (symbol == NULL) {
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120 FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS |
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121 FORMAT_MESSAGE_FROM_SYSTEM),
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122 NULL, GetLastError(),
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123 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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124 errbuf, SDL_arraysize(errbuf), NULL);
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125 loaderror = errbuf;
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126 }
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127 #endif
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128
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129 if (symbol == NULL) {
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130 SDL_SetError("Failed loading %s: %s", name, loaderror);
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131 }
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132 return (symbol);
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133 }
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134
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135 void
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136 SDL_UnloadObject(void *handle)
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137 {
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138 if (handle != NULL) {
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139 FreeLibrary((HMODULE) handle);
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140 }
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141 }
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142
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143 #endif /* SDL_LOADSO_WIN32 */
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144
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145 /* vi: set ts=4 sw=4 expandtab: */