Mercurial > sdl-ios-xcode
annotate src/video/xbios/SDL_xbios.c @ 2993:2fad80c77c17
Technically more correct
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sun, 04 Jan 2009 19:26:50 +0000 |
parents | 99210400e8b9 |
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1 /* |
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2 SDL - Simple DirectMedia Layer |
2859 | 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 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 /* |
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25 * Xbios SDL video driver |
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26 * |
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27 * Patrice Mandin |
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28 */ |
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29 |
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30 #include <sys/stat.h> |
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31 #include <unistd.h> |
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32 |
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33 /* Mint includes */ |
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34 #include <mint/cookie.h> |
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35 #include <mint/osbind.h> |
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36 #include <mint/falcon.h> |
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37 |
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38 #include "SDL_video.h" |
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39 #include "SDL_mouse.h" |
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40 #include "../SDL_sysvideo.h" |
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41 #include "../SDL_pixels_c.h" |
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42 #include "../../events/SDL_events_c.h" |
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43 |
1412 | 44 #include "../ataricommon/SDL_ataric2p_s.h" |
45 #include "../ataricommon/SDL_atarievents_c.h" | |
46 #include "../ataricommon/SDL_atarimxalloc_c.h" | |
47 #include "../ataricommon/SDL_atarigl_c.h" | |
281
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48 #include "SDL_xbios.h" |
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49 #include "SDL_xbiosmodes.h" |
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50 |
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51 /* Debug print info */ |
1043 | 52 #if 0 |
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53 #define DEBUG_PRINT(what) \ |
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54 { \ |
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55 printf what; \ |
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56 } |
1043 | 57 #define DEBUG_VIDEO_XBIOS 1 |
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58 #else |
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59 #define DEBUG_PRINT(what) |
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60 #undef DEBUG_VIDEO_XBIOS |
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61 #endif |
735 | 62 |
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63 /* Initialization/Query functions */ |
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64 static int XBIOS_VideoInit(_THIS); |
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65 static void XBIOS_VideoQuit(_THIS); |
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66 |
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67 /* Xbios driver bootstrap functions */ |
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68 |
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69 static int |
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70 XBIOS_Available(void) |
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71 { |
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72 unsigned long cookie_vdo, cookie_mil, cookie_hade, cookie_scpn; |
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73 |
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74 /* Milan/Hades Atari clones do not have an Atari video chip */ |
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75 if ((Getcookie(C__MIL, &cookie_mil) == C_FOUND) || |
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76 (Getcookie(C_hade, &cookie_hade) == C_FOUND)) { |
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77 return 0; |
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78 } |
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79 |
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80 /* Cookie _VDO present ? if not, assume ST machine */ |
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81 if (Getcookie(C__VDO, &cookie_vdo) != C_FOUND) { |
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82 cookie_vdo = VDO_ST << 16; |
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83 } |
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84 |
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85 /* Test if we have a monochrome monitor plugged in */ |
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86 switch (cookie_vdo >> 16) { |
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87 case VDO_ST: |
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88 case VDO_STE: |
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89 if (Getrez() == (ST_HIGH >> 8)) |
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90 return 0; |
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91 break; |
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92 case VDO_TT: |
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93 if ((EgetShift() & ES_MODE) == TT_HIGH) |
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94 return 0; |
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95 break; |
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96 case VDO_F30: |
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97 if (VgetMonitor() == MONITOR_MONO) |
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98 return 0; |
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99 /*if (Getcookie(C_SCPN, &cookie_scpn) == C_FOUND) { |
2120 | 100 if (!SDL_XBIOS_SB3Usable((scpn_cookie_t *) cookie_scpn)) { |
101 return 0; | |
102 } | |
103 } */ | |
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104 break; |
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105 default: |
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106 return 0; |
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107 } |
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108 |
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109 return 1; |
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110 } |
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111 |
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112 static void |
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113 XBIOS_DeleteDevice(SDL_VideoDevice * device) |
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114 { |
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115 SDL_free(device->driverdata); |
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116 SDL_free(device); |
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117 } |
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118 |
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119 static SDL_VideoDevice * |
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120 XBIOS_CreateDevice(int devindex) |
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121 { |
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122 SDL_VideoDevice *device; |
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123 SDL_VideoData *data; |
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124 |
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125 /* Initialize all variables that we clean on shutdown */ |
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126 device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice)); |
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127 if (device) { |
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128 data = (struct SDL_VideoData *) SDL_calloc(1, sizeof(SDL_VideoData)); |
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129 } |
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130 if (!device || !data) { |
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131 SDL_OutOfMemory(); |
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132 if (device) { |
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133 SDL_free(device); |
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134 } |
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135 return NULL; |
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136 } |
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137 device->driverdata = data; |
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138 |
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139 /* Video functions */ |
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140 device->VideoInit = XBIOS_VideoInit; |
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141 device->VideoQuit = XBIOS_VideoQuit; |
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142 |
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143 /* Modes */ |
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144 device->GetDisplayModes = SDL_XBIOS_GetDisplayModes; |
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145 device->SetDisplayMode = SDL_XBIOS_SetDisplayMode; |
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146 |
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147 /* Events */ |
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148 device->PumpEvents = SDL_Atari_PumpEvents; |
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149 |
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150 #if SDL_VIDEO_OPENGL |
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151 /* OpenGL functions */ |
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152 device->GL_LoadLibrary = SDL_AtariGL_LoadLibrary; |
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153 device->GL_GetProcAddress = SDL_AtariGL_GetProcAddress; |
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154 device->GL_CreateContext = NULL; |
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155 device->GL_MakeCurrent = SDL_AtariGL_MakeCurrent; |
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156 device->GL_SetSwapInterval = NULL; |
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157 device->GL_GetSwapInterval = NULL; |
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158 device->GL_SwapWindow = XBIOS_GL_SwapBuffers; |
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159 device->GL_DeleteContext = NULL; |
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160 #endif |
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161 |
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162 device->free = XBIOS_DeleteDevice; |
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163 |
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164 return device; |
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165 } |
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166 |
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167 VideoBootStrap XBIOS_bootstrap = { |
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168 "xbios", "Atari Xbios driver", |
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169 XBIOS_Available, XBIOS_CreateDevice |
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170 }; |
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171 |
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172 static int |
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173 XBIOS_VideoInit(_THIS) |
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174 { |
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175 /* Save screensaver settings */ |
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176 |
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177 /* Init video mode list, save current video mode settings */ |
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178 SDL_XBIOS_InitModes(_this); |
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179 |
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180 return (0); |
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181 } |
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182 |
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183 static void |
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184 XBIOS_VideoQuit(_THIS) |
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185 { |
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186 Atari_ShutdownEvents(); |
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187 |
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188 /* Restore screensaver settings */ |
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189 |
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190 /* Restore previous video mode settings */ |
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191 SDL_XBIOS_QuitModes(_this); |
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192 } |