Mercurial > sdl-ios-xcode
annotate src/video/x11/SDL_x11dyn.c @ 4170:092c0bc69155 SDL-1.2
Fixed bug #618
Description From Tim Angus 2008-08-30 12:23:56 (-) [reply]
As we all know SDL 1.2 doesn't handle dead keys well since one key press
potentially equals two (or more) characters. For example, on many layouts,
keying <backquote>,<space> results in <no character>,<backquote><space>. Since
the unicode member of the SDL_keysym struct only has room for one character,
only one can be returned.
On Linux, the first character is returned. On Windows however, unless the exact
number of characters generated by the keypress is 1, nothing is returned. The
following patch addresses this inconsistency.
Updated patch which includes a further fix to the handling of the numpad when
numlock is on. This further fix is courtesy Amanieu d'Antras.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Mon, 13 Apr 2009 08:42:09 +0000 |
parents | a1b03ba2fcd0 |
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rev | line source |
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1 /* |
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2 SDL - Simple DirectMedia Layer |
4159 | 3 Copyright (C) 1997-2009 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 Library General Public |
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7 License as published by the Free Software Foundation; either |
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8 version 2 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 Library 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 Library General Public |
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16 License along with this library; if not, write to the Free |
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 #define DEBUG_DYNAMIC_X11 0 |
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25 |
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26 #include "SDL_x11dyn.h" |
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27 |
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28 #if DEBUG_DYNAMIC_X11 |
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29 #include <stdio.h> |
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30 #endif |
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31 |
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32 #ifdef SDL_VIDEO_DRIVER_X11_DYNAMIC |
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33 |
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34 #include "SDL_name.h" |
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35 #include "SDL_loadso.h" |
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36 |
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37 typedef struct |
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38 { |
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39 void *lib; |
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40 const char *libname; |
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41 } x11dynlib; |
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42 |
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43 #ifndef SDL_VIDEO_DRIVER_X11_DYNAMIC |
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44 #define SDL_VIDEO_DRIVER_X11_DYNAMIC NULL |
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45 #endif |
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46 #ifndef SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT |
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47 #define SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT NULL |
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48 #endif |
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49 #ifndef SDL_VIDEO_DRIVER_X11_DYNAMIC_XRENDER |
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50 #define SDL_VIDEO_DRIVER_X11_DYNAMIC_XRENDER NULL |
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51 #endif |
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52 #ifndef SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR |
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53 #define SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR NULL |
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54 #endif |
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55 |
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56 static x11dynlib x11libs[] = |
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57 { |
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58 { NULL, SDL_VIDEO_DRIVER_X11_DYNAMIC }, |
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59 { NULL, SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT }, |
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60 { NULL, SDL_VIDEO_DRIVER_X11_DYNAMIC_XRENDER }, |
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61 { NULL, SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR }, |
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62 }; |
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63 |
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64 static void X11_GetSym(const char *fnname, int *rc, void **fn) |
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65 { |
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66 int i; |
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67 for (i = 0; i < SDL_TABLESIZE(x11libs); i++) { |
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68 if (x11libs[i].lib != NULL) |
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69 { |
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70 *fn = SDL_LoadFunction(x11libs[i].lib, fnname); |
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71 if (*fn != NULL) |
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72 break; |
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73 } |
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74 } |
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75 |
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76 #if DEBUG_DYNAMIC_X11 |
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77 if (*fn != NULL) |
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78 printf("X11: Found '%s' in %s (%p)\n", fnname, x11libs[i].libname, *fn); |
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79 else |
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80 printf("X11: Symbol '%s' NOT FOUND!\n", fnname); |
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81 #endif |
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82 |
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83 if (*fn == NULL) |
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84 *rc = 0; /* kill this module. */ |
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85 } |
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86 |
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87 |
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88 /* Define all the function pointers and wrappers... */ |
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89 #define SDL_X11_MODULE(modname) |
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90 #define SDL_X11_SYM(rc,fn,params,args,ret) \ |
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91 static rc (*p##fn) params = NULL; \ |
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92 rc fn params { ret p##fn args ; } |
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93 #include "SDL_x11sym.h" |
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94 #undef SDL_X11_MODULE |
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95 #undef SDL_X11_SYM |
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96 #endif /* SDL_VIDEO_DRIVER_X11_DYNAMIC */ |
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97 |
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98 /* Annoying varargs entry point... */ |
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99 #ifdef X_HAVE_UTF8_STRING |
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100 XIC (*pXCreateIC)(XIM,...) = NULL; |
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101 char *(*pXGetICValues)(XIC, ...) = NULL; |
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102 #endif |
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103 |
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104 /* These SDL_X11_HAVE_* flags are here whether you have dynamic X11 or not. */ |
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105 #define SDL_X11_MODULE(modname) int SDL_X11_HAVE_##modname = 1; |
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106 #define SDL_X11_SYM(rc,fn,params,args,ret) |
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107 #include "SDL_x11sym.h" |
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108 #undef SDL_X11_MODULE |
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109 #undef SDL_X11_SYM |
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110 |
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111 |
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112 static int x11_load_refcount = 0; |
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113 |
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114 void SDL_X11_UnloadSymbols(void) |
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115 { |
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116 #ifdef SDL_VIDEO_DRIVER_X11_DYNAMIC |
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117 /* Don't actually unload if more than one module is using the libs... */ |
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118 if (x11_load_refcount > 0) { |
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119 if (--x11_load_refcount == 0) { |
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120 int i; |
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121 |
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122 /* set all the function pointers to NULL. */ |
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123 #define SDL_X11_MODULE(modname) SDL_X11_HAVE_##modname = 1; |
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124 #define SDL_X11_SYM(rc,fn,params,args,ret) p##fn = NULL; |
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125 #include "SDL_x11sym.h" |
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126 #undef SDL_X11_MODULE |
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127 #undef SDL_X11_SYM |
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128 |
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129 #ifdef X_HAVE_UTF8_STRING |
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130 pXCreateIC = NULL; |
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131 pXGetICValues = NULL; |
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132 #endif |
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133 |
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134 for (i = 0; i < SDL_TABLESIZE(x11libs); i++) { |
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135 if (x11libs[i].lib != NULL) { |
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136 SDL_UnloadObject(x11libs[i].lib); |
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137 x11libs[i].lib = NULL; |
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138 } |
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139 } |
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140 } |
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141 } |
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142 #endif |
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143 } |
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144 |
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145 /* returns non-zero if all needed symbols were loaded. */ |
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146 int SDL_X11_LoadSymbols(void) |
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147 { |
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148 int rc = 1; /* always succeed if not using Dynamic X11 stuff. */ |
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149 |
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150 #ifdef SDL_VIDEO_DRIVER_X11_DYNAMIC |
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151 /* deal with multiple modules (dga, x11, etc) needing these symbols... */ |
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152 if (x11_load_refcount++ == 0) { |
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153 int i; |
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154 int *thismod = NULL; |
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155 for (i = 0; i < SDL_TABLESIZE(x11libs); i++) { |
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156 if (x11libs[i].libname != NULL) { |
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157 x11libs[i].lib = SDL_LoadObject(x11libs[i].libname); |
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158 } |
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159 } |
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160 #define SDL_X11_MODULE(modname) thismod = &SDL_X11_HAVE_##modname; |
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161 #define SDL_X11_SYM(a,fn,x,y,z) X11_GetSym(#fn,thismod,(void**)&p##fn); |
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162 #include "SDL_x11sym.h" |
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163 #undef SDL_X11_MODULE |
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164 #undef SDL_X11_SYM |
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165 |
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166 #ifdef X_HAVE_UTF8_STRING |
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167 X11_GetSym("XCreateIC",&SDL_X11_HAVE_UTF8,(void **)&pXCreateIC); |
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168 X11_GetSym("XGetICValues",&SDL_X11_HAVE_UTF8,(void **)&pXGetICValues); |
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169 #endif |
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170 |
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171 if (SDL_X11_HAVE_BASEXLIB) { /* all required symbols loaded. */ |
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172 SDL_ClearError(); |
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173 } else { |
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174 SDL_X11_UnloadSymbols(); /* in case something got loaded... */ |
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175 rc = 0; |
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176 } |
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177 } |
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178 #else |
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179 #if DEBUG_DYNAMIC_X11 |
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180 printf("X11: No dynamic X11 support in this build of SDL.\n"); |
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181 #endif |
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182 #ifdef X_HAVE_UTF8_STRING |
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183 pXCreateIC = XCreateIC; |
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184 pXGetICValues = XGetICValues; |
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185 #endif |
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186 #endif |
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187 |
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188 return rc; |
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189 } |
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190 |
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191 /* end of SDL_x11dyn.c ... */ |
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192 |