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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 |
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23 /* This file takes care of command line argument parsing, and stdio redirection |
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24 in the MacOS environment. (stdio/stderr is *not* directed for Mach-O builds) |
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25 */ |
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26 |
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27 #if defined(__APPLE__) && defined(__MACH__) |
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28 #include <Carbon/Carbon.h> |
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29 #elif TARGET_API_MAC_CARBON && (UNIVERSAL_INTERFACES_VERSION > 0x0335) |
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30 #include <Carbon.h> |
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31 #else |
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32 #include <Dialogs.h> |
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33 #include <Fonts.h> |
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34 #include <Events.h> |
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35 #include <Resources.h> |
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36 #include <Folders.h> |
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37 #endif |
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38 |
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39 /* Include the SDL main definition header */ |
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40 #include "SDL.h" |
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41 #include "SDL_main.h" |
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42 #ifdef main |
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43 #undef main |
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44 #endif |
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45 |
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46 #if !(defined(__APPLE__) && defined(__MACH__)) |
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47 /* The standard output files */ |
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48 #define STDOUT_FILE "stdout.txt" |
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49 #define STDERR_FILE "stderr.txt" |
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50 #endif |
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51 |
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52 #if !defined(__MWERKS__) && !TARGET_API_MAC_CARBON |
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53 /* In MPW, the qd global has been removed from the libraries */ |
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54 QDGlobals qd; |
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55 #endif |
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56 |
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57 /* Structure for keeping prefs in 1 variable */ |
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58 typedef struct { |
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59 Str255 command_line; |
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60 Str255 video_driver_name; |
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61 Boolean output_to_file; |
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62 } PrefsRecord; |
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63 |
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64 /* See if the command key is held down at startup */ |
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65 static Boolean CommandKeyIsDown(void) |
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66 { |
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67 KeyMap theKeyMap; |
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68 |
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69 GetKeys(theKeyMap); |
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70 |
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71 if (((unsigned char *) theKeyMap)[6] & 0x80) { |
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72 return(true); |
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73 } |
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74 return(false); |
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75 } |
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76 |
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77 #if !(defined(__APPLE__) && defined(__MACH__)) |
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78 |
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79 /* Parse a command line buffer into arguments */ |
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80 static int ParseCommandLine(char *cmdline, char **argv) |
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81 { |
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82 char *bufp; |
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83 int argc; |
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84 |
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85 argc = 0; |
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86 for ( bufp = cmdline; *bufp; ) { |
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87 /* Skip leading whitespace */ |
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88 while ( SDL_isspace(*bufp) ) { |
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89 ++bufp; |
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90 } |
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91 /* Skip over argument */ |
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92 if ( *bufp == '"' ) { |
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93 ++bufp; |
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94 if ( *bufp ) { |
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95 if ( argv ) { |
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96 argv[argc] = bufp; |
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97 } |
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98 ++argc; |
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99 } |
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100 /* Skip over word */ |
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101 while ( *bufp && (*bufp != '"') ) { |
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102 ++bufp; |
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103 } |
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104 } else { |
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105 if ( *bufp ) { |
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106 if ( argv ) { |
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107 argv[argc] = bufp; |
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108 } |
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109 ++argc; |
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110 } |
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111 /* Skip over word */ |
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112 while ( *bufp && ! SDL_isspace(*bufp) ) { |
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113 ++bufp; |
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114 } |
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115 } |
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116 if ( *bufp ) { |
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117 if ( argv ) { |
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118 *bufp = '\0'; |
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119 } |
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120 ++bufp; |
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121 } |
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122 } |
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123 if ( argv ) { |
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124 argv[argc] = NULL; |
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125 } |
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126 return(argc); |
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127 } |
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128 |
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129 /* Remove the output files if there was no output written */ |
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130 static void cleanup_output(void) |
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131 { |
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132 FILE *file; |
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133 int empty; |
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134 |
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135 /* Flush the output in case anything is queued */ |
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136 fclose(stdout); |
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137 fclose(stderr); |
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138 |
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139 /* See if the files have any output in them */ |
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140 file = fopen(STDOUT_FILE, "rb"); |
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141 if ( file ) { |
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142 empty = (fgetc(file) == EOF) ? 1 : 0; |
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143 fclose(file); |
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144 if ( empty ) { |
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145 remove(STDOUT_FILE); |
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146 } |
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147 } |
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148 file = fopen(STDERR_FILE, "rb"); |
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149 if ( file ) { |
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150 empty = (fgetc(file) == EOF) ? 1 : 0; |
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151 fclose(file); |
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152 if ( empty ) { |
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153 remove(STDERR_FILE); |
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154 } |
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155 } |
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156 } |
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157 |
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158 #endif //!(defined(__APPLE__) && defined(__MACH__)) |
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159 |
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160 static int getCurrentAppName (StrFileName name) { |
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161 |
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162 ProcessSerialNumber process; |
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163 ProcessInfoRec process_info; |
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164 FSSpec process_fsp; |
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165 |
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166 process.highLongOfPSN = 0; |
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167 process.lowLongOfPSN = kCurrentProcess; |
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168 process_info.processInfoLength = sizeof (process_info); |
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169 process_info.processName = NULL; |
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170 process_info.processAppSpec = &process_fsp; |
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171 |
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172 if ( noErr != GetProcessInformation (&process, &process_info) ) |
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173 return 0; |
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174 |
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175 SDL_memcpy(name, process_fsp.name, process_fsp.name[0] + 1); |
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176 return 1; |
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177 } |
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178 |
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179 static int getPrefsFile (FSSpec *prefs_fsp, int create) { |
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180 |
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181 /* The prefs file name is the application name, possibly truncated, */ |
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182 /* plus " Preferences */ |
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183 |
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184 #define SUFFIX " Preferences" |
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185 #define MAX_NAME 19 /* 31 - strlen (SUFFIX) */ |
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186 |
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187 short volume_ref_number; |
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188 long directory_id; |
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189 StrFileName prefs_name; |
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190 StrFileName app_name; |
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191 |
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192 /* Get Preferences folder - works with Multiple Users */ |
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193 if ( noErr != FindFolder ( kOnSystemDisk, kPreferencesFolderType, kDontCreateFolder, |
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194 &volume_ref_number, &directory_id) ) |
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195 exit (-1); |
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196 |
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197 if ( ! getCurrentAppName (app_name) ) |
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198 exit (-1); |
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199 |
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200 /* Truncate if name is too long */ |
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201 if (app_name[0] > MAX_NAME ) |
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202 app_name[0] = MAX_NAME; |
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203 |
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204 SDL_memcpy(prefs_name + 1, app_name + 1, app_name[0]); |
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205 SDL_memcpy(prefs_name + app_name[0] + 1, SUFFIX, strlen (SUFFIX)); |
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206 prefs_name[0] = app_name[0] + strlen (SUFFIX); |
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207 |
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208 /* Make the file spec for prefs file */ |
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209 if ( noErr != FSMakeFSSpec (volume_ref_number, directory_id, prefs_name, prefs_fsp) ) { |
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210 if ( !create ) |
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211 return 0; |
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212 else { |
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213 /* Create the prefs file */ |
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214 SDL_memcpy(prefs_fsp->name, prefs_name, prefs_name[0] + 1); |
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215 prefs_fsp->parID = directory_id; |
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216 prefs_fsp->vRefNum = volume_ref_number; |
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217 |
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218 FSpCreateResFile (prefs_fsp, 0x3f3f3f3f, 'pref', 0); // '????' parsed as trigraph |
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219 |
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220 if ( noErr != ResError () ) |
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221 return 0; |
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222 } |
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223 } |
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224 return 1; |
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225 } |
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226 |
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227 static int readPrefsResource (PrefsRecord *prefs) { |
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228 |
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229 Handle prefs_handle; |
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230 |
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231 prefs_handle = Get1Resource( 'CLne', 128 ); |
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232 |
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233 if (prefs_handle != NULL) { |
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234 int offset = 0; |
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235 // int j = 0; |
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236 |
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237 HLock(prefs_handle); |
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238 |
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239 /* Get command line string */ |
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240 SDL_memcpy(prefs->command_line, *prefs_handle, (*prefs_handle)[0]+1); |
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241 |
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242 /* Get video driver name */ |
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243 offset += (*prefs_handle)[0] + 1; |
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244 SDL_memcpy(prefs->video_driver_name, *prefs_handle + offset, (*prefs_handle)[offset] + 1); |
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245 |
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246 /* Get save-to-file option (1 or 0) */ |
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247 offset += (*prefs_handle)[offset] + 1; |
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248 prefs->output_to_file = (*prefs_handle)[offset]; |
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249 |
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250 ReleaseResource( prefs_handle ); |
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251 |
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252 return ResError() == noErr; |
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253 } |
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254 |
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255 return 0; |
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256 } |
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257 |
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258 static int writePrefsResource (PrefsRecord *prefs, short resource_file) { |
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259 |
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260 Handle prefs_handle; |
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261 |
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262 UseResFile (resource_file); |
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263 |
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264 prefs_handle = Get1Resource ( 'CLne', 128 ); |
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265 if (prefs_handle != NULL) |
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266 RemoveResource (prefs_handle); |
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267 |
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268 prefs_handle = NewHandle ( prefs->command_line[0] + prefs->video_driver_name[0] + 4 ); |
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269 if (prefs_handle != NULL) { |
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270 |
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271 int offset; |
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272 |
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273 HLock (prefs_handle); |
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274 |
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275 /* Command line text */ |
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276 offset = 0; |
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277 SDL_memcpy(*prefs_handle, prefs->command_line, prefs->command_line[0] + 1); |
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278 |
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279 /* Video driver name */ |
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280 offset += prefs->command_line[0] + 1; |
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281 SDL_memcpy(*prefs_handle + offset, prefs->video_driver_name, prefs->video_driver_name[0] + 1); |
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282 |
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283 /* Output-to-file option */ |
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284 offset += prefs->video_driver_name[0] + 1; |
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285 *( *((char**)prefs_handle) + offset) = (char)prefs->output_to_file; |
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286 *( *((char**)prefs_handle) + offset + 1) = 0; |
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287 |
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288 AddResource (prefs_handle, 'CLne', 128, "\pCommand Line"); |
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289 WriteResource (prefs_handle); |
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290 UpdateResFile (resource_file); |
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291 DisposeHandle (prefs_handle); |
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292 |
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293 return ResError() == noErr; |
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294 } |
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295 |
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296 return 0; |
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297 } |
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298 |
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299 static int readPreferences (PrefsRecord *prefs) { |
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300 |
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301 int no_error = 1; |
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302 FSSpec prefs_fsp; |
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303 |
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304 /* Check for prefs file first */ |
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305 if ( getPrefsFile (&prefs_fsp, 0) ) { |
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306 |
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307 short prefs_resource; |
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308 |
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309 prefs_resource = FSpOpenResFile (&prefs_fsp, fsRdPerm); |
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310 if ( prefs_resource == -1 ) /* this shouldn't happen, but... */ |
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311 return 0; |
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312 |
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313 UseResFile (prefs_resource); |
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314 no_error = readPrefsResource (prefs); |
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315 CloseResFile (prefs_resource); |
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316 } |
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317 |
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318 /* Fall back to application's resource fork (reading only, so this is safe) */ |
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319 else { |
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320 |
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321 no_error = readPrefsResource (prefs); |
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322 } |
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323 |
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324 return no_error; |
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325 } |
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326 |
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327 static int writePreferences (PrefsRecord *prefs) { |
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328 |
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329 int no_error = 1; |
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330 FSSpec prefs_fsp; |
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331 |
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332 /* Get prefs file, create if it doesn't exist */ |
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333 if ( getPrefsFile (&prefs_fsp, 1) ) { |
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334 |
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335 short prefs_resource; |
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336 |
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337 prefs_resource = FSpOpenResFile (&prefs_fsp, fsRdWrPerm); |
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338 if (prefs_resource == -1) |
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339 return 0; |
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340 no_error = writePrefsResource (prefs, prefs_resource); |
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341 CloseResFile (prefs_resource); |
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342 } |
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343 |
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344 return no_error; |
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345 } |
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346 |
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347 /* This is where execution begins */ |
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348 int main(int argc, char *argv[]) |
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349 { |
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350 |
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351 #if !(defined(__APPLE__) && defined(__MACH__)) |
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352 #pragma unused(argc, argv) |
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353 #endif |
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354 |
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355 #define DEFAULT_ARGS "\p" /* pascal string for default args */ |
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356 #define DEFAULT_VIDEO_DRIVER "\ptoolbox" /* pascal string for default video driver name */ |
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357 #define DEFAULT_OUTPUT_TO_FILE 1 /* 1 == output to file, 0 == no output */ |
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358 |
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359 #define VIDEO_ID_DRAWSPROCKET 1 /* these correspond to popup menu choices */ |
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360 #define VIDEO_ID_TOOLBOX 2 |
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361 |
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362 PrefsRecord prefs = { DEFAULT_ARGS, DEFAULT_VIDEO_DRIVER, DEFAULT_OUTPUT_TO_FILE }; |
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363 |
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364 #if !(defined(__APPLE__) && defined(__MACH__)) |
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365 int nargs; |
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366 char **args; |
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367 char *commandLine; |
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368 |
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369 StrFileName appNameText; |
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370 #endif |
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371 int videodriver = VIDEO_ID_TOOLBOX; |
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372 int settingsChanged = 0; |
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373 |
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374 long i; |
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375 |
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376 /* Kyle's SDL command-line dialog code ... */ |
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377 #if !TARGET_API_MAC_CARBON |
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378 InitGraf (&qd.thePort); |
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379 InitFonts (); |
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380 InitWindows (); |
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381 InitMenus (); |
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382 InitDialogs (nil); |
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383 #endif |
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384 InitCursor (); |
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385 FlushEvents(everyEvent,0); |
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386 #if !TARGET_API_MAC_CARBON |
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387 MaxApplZone (); |
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388 #endif |
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389 MoreMasters (); |
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390 MoreMasters (); |
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391 #if 0 |
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392 /* Intialize SDL, and put up a dialog if we fail */ |
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393 if ( SDL_Init (0) < 0 ) { |
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394 |
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395 #define kErr_OK 1 |
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396 #define kErr_Text 2 |
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397 |
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398 DialogPtr errorDialog; |
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399 short dummyType; |
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400 Rect dummyRect; |
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401 Handle dummyHandle; |
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402 short itemHit; |
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403 |
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404 errorDialog = GetNewDialog (1001, nil, (WindowPtr)-1); |
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405 if (errorDialog == NULL) |
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406 return -1; |
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407 DrawDialog (errorDialog); |
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408 |
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409 GetDialogItem (errorDialog, kErr_Text, &dummyType, &dummyHandle, &dummyRect); |
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410 SetDialogItemText (dummyHandle, "\pError Initializing SDL"); |
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411 |
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412 #if TARGET_API_MAC_CARBON |
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413 SetPort (GetDialogPort(errorDialog)); |
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414 #else |
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415 SetPort (errorDialog); |
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416 #endif |
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417 do { |
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418 ModalDialog (nil, &itemHit); |
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419 } while (itemHit != kErr_OK); |
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420 |
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421 DisposeDialog (errorDialog); |
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422 exit (-1); |
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423 } |
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424 atexit(cleanup_output); |
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425 atexit(SDL_Quit); |
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426 #endif |
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427 |
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428 /* Set up SDL's QuickDraw environment */ |
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429 #if !TARGET_API_MAC_CARBON |
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430 SDL_InitQuickDraw(&qd); |
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431 #endif |
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432 |
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433 if ( readPreferences (&prefs) ) { |
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434 |
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435 if (SDL_memcmp(prefs.video_driver_name+1, "DSp", 3) == 0) |
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436 videodriver = 1; |
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437 else if (SDL_memcmp(prefs.video_driver_name+1, "toolbox", 7) == 0) |
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438 videodriver = 2; |
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439 } |
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440 |
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441 if ( CommandKeyIsDown() ) { |
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442 |
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443 #define kCL_OK 1 |
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444 #define kCL_Cancel 2 |
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445 #define kCL_Text 3 |
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446 #define kCL_File 4 |
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447 #define kCL_Video 6 |
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448 |
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449 DialogPtr commandDialog; |
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450 short dummyType; |
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451 Rect dummyRect; |
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452 Handle dummyHandle; |
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453 short itemHit; |
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454 #if TARGET_API_MAC_CARBON |
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455 ControlRef control; |
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456 #endif |
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457 |
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458 /* Assume that they will change settings, rather than do exhaustive check */ |
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459 settingsChanged = 1; |
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460 |
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461 /* Create dialog and display it */ |
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462 commandDialog = GetNewDialog (1000, nil, (WindowPtr)-1); |
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463 #if TARGET_API_MAC_CARBON |
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464 SetPort ( GetDialogPort(commandDialog) ); |
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465 #else |
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466 SetPort (commandDialog); |
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467 #endif |
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468 |
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469 /* Setup controls */ |
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470 #if TARGET_API_MAC_CARBON |
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471 GetDialogItemAsControl(commandDialog, kCL_File, &control); |
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472 SetControlValue (control, prefs.output_to_file); |
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473 #else |
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474 GetDialogItem (commandDialog, kCL_File, &dummyType, &dummyHandle, &dummyRect); /* MJS */ |
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475 SetControlValue ((ControlHandle)dummyHandle, prefs.output_to_file ); |
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476 #endif |
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477 |
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478 GetDialogItem (commandDialog, kCL_Text, &dummyType, &dummyHandle, &dummyRect); |
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479 SetDialogItemText (dummyHandle, prefs.command_line); |
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480 |
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481 #if TARGET_API_MAC_CARBON |
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482 GetDialogItemAsControl(commandDialog, kCL_Video, &control); |
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483 SetControlValue (control, videodriver); |
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484 #else |
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485 GetDialogItem (commandDialog, kCL_Video, &dummyType, &dummyHandle, &dummyRect); |
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486 SetControlValue ((ControlRef)dummyHandle, videodriver); |
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487 #endif |
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488 |
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489 SetDialogDefaultItem (commandDialog, kCL_OK); |
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490 SetDialogCancelItem (commandDialog, kCL_Cancel); |
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491 |
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492 do { |
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493 |
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494 ModalDialog(nil, &itemHit); /* wait for user response */ |
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495 |
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496 /* Toggle command-line output checkbox */ |
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497 if ( itemHit == kCL_File ) { |
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498 #if TARGET_API_MAC_CARBON |
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499 GetDialogItemAsControl(commandDialog, kCL_File, &control); |
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500 SetControlValue (control, !GetControlValue(control)); |
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501 #else |
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502 GetDialogItem(commandDialog, kCL_File, &dummyType, &dummyHandle, &dummyRect); /* MJS */ |
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503 SetControlValue((ControlHandle)dummyHandle, !GetControlValue((ControlHandle)dummyHandle) ); |
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504 #endif |
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505 } |
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506 |
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507 } while (itemHit != kCL_OK && itemHit != kCL_Cancel); |
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508 |
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509 /* Get control values, even if they did not change */ |
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510 GetDialogItem (commandDialog, kCL_Text, &dummyType, &dummyHandle, &dummyRect); /* MJS */ |
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511 GetDialogItemText (dummyHandle, prefs.command_line); |
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512 |
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513 #if TARGET_API_MAC_CARBON |
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514 GetDialogItemAsControl(commandDialog, kCL_File, &control); |
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515 prefs.output_to_file = GetControlValue(control); |
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516 #else |
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517 GetDialogItem (commandDialog, kCL_File, &dummyType, &dummyHandle, &dummyRect); /* MJS */ |
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518 prefs.output_to_file = GetControlValue ((ControlHandle)dummyHandle); |
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519 #endif |
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520 |
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521 #if TARGET_API_MAC_CARBON |
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522 GetDialogItemAsControl(commandDialog, kCL_Video, &control); |
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523 videodriver = GetControlValue(control); |
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524 #else |
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525 GetDialogItem (commandDialog, kCL_Video, &dummyType, &dummyHandle, &dummyRect); |
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526 videodriver = GetControlValue ((ControlRef)dummyHandle); |
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527 #endif |
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528 |
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529 DisposeDialog (commandDialog); |
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530 |
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531 if (itemHit == kCL_Cancel ) { |
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532 exit (0); |
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533 } |
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534 } |
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535 |
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536 /* Set pseudo-environment variables for video driver, update prefs */ |
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537 switch ( videodriver ) { |
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538 case VIDEO_ID_DRAWSPROCKET: |
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539 SDL_putenv("SDL_VIDEODRIVER=DSp"); |
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540 SDL_memcpy(prefs.video_driver_name, "\pDSp", 4); |
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541 break; |
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542 case VIDEO_ID_TOOLBOX: |
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543 SDL_putenv("SDL_VIDEODRIVER=toolbox"); |
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544 SDL_memcpy(prefs.video_driver_name, "\ptoolbox", 8); |
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545 break; |
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546 } |
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547 |
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548 #if !(defined(__APPLE__) && defined(__MACH__)) |
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549 /* Redirect standard I/O to files */ |
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550 if ( prefs.output_to_file ) { |
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551 freopen (STDOUT_FILE, "w", stdout); |
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552 freopen (STDERR_FILE, "w", stderr); |
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553 } else { |
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554 fclose (stdout); |
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555 fclose (stderr); |
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556 } |
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557 #endif |
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558 |
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559 if (settingsChanged) { |
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560 /* Save the prefs, even if they might not have changed (but probably did) */ |
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561 if ( ! writePreferences (&prefs) ) |
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562 fprintf (stderr, "WARNING: Could not save preferences!\n"); |
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563 } |
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564 |
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565 #if !(defined(__APPLE__) && defined(__MACH__)) |
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566 appNameText[0] = 0; |
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567 getCurrentAppName (appNameText); /* check for error here ? */ |
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568 |
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569 commandLine = (char*) malloc (appNameText[0] + prefs.command_line[0] + 2); |
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570 if ( commandLine == NULL ) { |
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571 exit(-1); |
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572 } |
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573 |
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574 /* Rather than rewrite ParseCommandLine method, let's replace */ |
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575 /* any spaces in application name with underscores, */ |
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576 /* so that the app name is only 1 argument */ |
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577 for (i = 1; i < 1+appNameText[0]; i++) |
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578 if ( appNameText[i] == ' ' ) appNameText[i] = '_'; |
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579 |
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580 /* Copy app name & full command text to command-line C-string */ |
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581 SDL_memcpy(commandLine, appNameText + 1, appNameText[0]); |
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582 commandLine[appNameText[0]] = ' '; |
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583 SDL_memcpy(commandLine + appNameText[0] + 1, prefs.command_line + 1, prefs.command_line[0]); |
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584 commandLine[ appNameText[0] + 1 + prefs.command_line[0] ] = '\0'; |
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585 |
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586 /* Parse C-string into argv and argc */ |
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587 nargs = ParseCommandLine (commandLine, NULL); |
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588 args = (char **)malloc((nargs+1)*(sizeof *args)); |
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589 if ( args == NULL ) { |
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590 exit(-1); |
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591 } |
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592 ParseCommandLine (commandLine, args); |
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593 |
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594 /* Run the main application code */ |
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595 SDL_main(nargs, args); |
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596 free (args); |
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597 free (commandLine); |
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598 |
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599 /* Remove useless stdout.txt and stderr.txt */ |
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600 cleanup_output (); |
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601 #else // defined(__APPLE__) && defined(__MACH__) |
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602 SDL_main(argc, argv); |
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603 #endif |
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604 |
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605 /* Exit cleanly, calling atexit() functions */ |
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606 exit (0); |
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607 |
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608 /* Never reached, but keeps the compiler quiet */ |
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609 return (0); |
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610 } |