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annotate src/loadso/win32/SDL_sysloadso.c @ 1662:782fd950bd46 SDL-1.3

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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. WARNING: None of the video drivers have been updated for the new API yet! The API is still under design and very fluid. The code is now run through a consistent indent format: indent -i4 -nut -nsc -br -ce The headers are being converted to automatically generate doxygen documentation.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 28 May 2006 13:04:16 +0000
parents 92947e3a18db
children 4da1ee79c9af
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 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
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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
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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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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,
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58 NULL);
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59 loaderror = errbuf;
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60 }
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61
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62 SDL_free (sofile_t);
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63 SDL_free (errbuf_t);
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64
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65 #else /*if defined(__WIN32__) */
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66 char errbuf[512];
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67
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68 handle = (void *) LoadLibrary (sofile);
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70 /* Generate an error message if all loads failed */
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71 if (handle == NULL) {
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72 FormatMessage ((FORMAT_MESSAGE_IGNORE_INSERTS |
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73 FORMAT_MESSAGE_FROM_SYSTEM),
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74 NULL, GetLastError (),
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75 MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT),
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76 errbuf, SDL_arraysize (errbuf), NULL);
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77 loaderror = errbuf;
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78 }
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79 #endif
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80
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81 if (handle == NULL) {
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82 SDL_SetError ("Failed loading %s: %s", sofile, loaderror);
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83 }
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84 return (handle);
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85 }
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86
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87 void *
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88 SDL_LoadFunction (void *handle, const char *name)
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89 {
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90 void *symbol = NULL;
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91 const char *loaderror = "Unknown error";
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92
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93 #if defined(_WIN32_WCE)
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94 char errbuf[512];
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95 int length = SDL_strlen (name);
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96
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97 wchar_t *name_t = SDL_malloc ((length + 1) * sizeof (wchar_t));
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98 wchar_t *errbuf_t = SDL_malloc (512 * sizeof (wchar_t));
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100 MultiByteToWideChar (CP_ACP, MB_PRECOMPOSED, name, -1, name_t, length);
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101
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102 symbol = (void *) GetProcAddress ((HMODULE) handle, name_t);
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103 if (symbol == NULL) {
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104 FormatMessage ((FORMAT_MESSAGE_IGNORE_INSERTS |
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105 FORMAT_MESSAGE_FROM_SYSTEM),
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106 NULL, GetLastError (),
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107 MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT),
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108 errbuf_t, SDL_arraysize (errbuf), NULL);
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109 WideCharToMultiByte (CP_ACP, 0, errbuf_t, -1, errbuf, 511, NULL,
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110 NULL);
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111 loaderror = errbuf;
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112 }
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113
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114 SDL_free (name_t);
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115 SDL_free (errbuf_t);
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116
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117 #else /*if defined(WIN32) */
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118 char errbuf[512];
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119
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120 symbol = (void *) GetProcAddress ((HMODULE) handle, name);
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121 if (symbol == NULL) {
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122 FormatMessage ((FORMAT_MESSAGE_IGNORE_INSERTS |
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123 FORMAT_MESSAGE_FROM_SYSTEM),
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124 NULL, GetLastError (),
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125 MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT),
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126 errbuf, SDL_arraysize (errbuf), NULL);
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127 loaderror = errbuf;
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128 }
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129 #endif
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130
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131 if (symbol == NULL) {
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132 SDL_SetError ("Failed loading %s: %s", name, loaderror);
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133 }
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134 return (symbol);
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135 }
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136
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137 void
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138 SDL_UnloadObject (void *handle)
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139 {
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140 if (handle != NULL) {
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141 FreeLibrary ((HMODULE) handle);
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142 }
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143 }
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144
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145 #endif /* SDL_LOADSO_WIN32 */
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146 /* vi: set ts=4 sw=4 expandtab: */