1 /* 2 SDL_main.c, placed in the public domain by Sam Lantinga 4/13/98 3 4 The WinMain function -- calls your program's main() function 5 */ 6 7 #include <stdio.h> 8 #include <stdlib.h> 9 10 #define WIN32_LEAN_AND_MEAN 11 #include <windows.h> 12 13 #ifdef _WIN32_WCE 14 # define DIR_SEPERATOR TEXT("\\") 15 # undef _getcwd 16 # define _getcwd(str,len) wcscpy(str,TEXT("")) 17 # define setbuf(f,b) 18 # define setvbuf(w,x,y,z) 19 # define fopen _wfopen 20 # define freopen _wfreopen 21 # define remove(x) DeleteFile(x) 22 #else 23 # define DIR_SEPERATOR TEXT("/") 24 # include <direct.h> 25 #endif 26 27 /* Include the SDL main definition header */ 28 #include "SDL.h" 29 #include "SDL_main.h" 30 31 #ifdef main 32 # ifndef _WIN32_WCE_EMULATION 33 # undef main 34 # endif /* _WIN32_WCE_EMULATION */ 35 #endif /* main */ 36 37 /* The standard output files */ 38 #define STDOUT_FILE TEXT("stdout.txt") 39 #define STDERR_FILE TEXT("stderr.txt") 40 41 #ifndef NO_STDIO_REDIRECT 42 # ifdef _WIN32_WCE 43 static wchar_t stdoutPath[MAX_PATH]; 44 static wchar_t stderrPath[MAX_PATH]; 45 # else 46 static char stdoutPath[MAX_PATH]; 47 static char stderrPath[MAX_PATH]; 48 # endif 49 #endif 50 51 #if defined(_WIN32_WCE) && _WIN32_WCE < 300 52 /* seems to be undefined in Win CE although in online help */ 53 #define isspace(a) (((CHAR)a == ' ') || ((CHAR)a == '\t')) 54 #endif /* _WIN32_WCE < 300 */ 55 56 /* Parse a command line buffer into arguments */ 57 static int ParseCommandLine(char *cmdline, char **argv) 58 { 59 char *bufp; 60 int argc; 61 62 argc = 0; 63 for ( bufp = cmdline; *bufp; ) { 64 /* Skip leading whitespace */ 65 while ( isspace(*bufp) ) { 66 ++bufp; 67 } 68 /* Skip over argument */ 69 if ( *bufp == '"' ) { 70 ++bufp; 71 if ( *bufp ) { 72 if ( argv ) { 73 argv[argc] = bufp; 74 } 75 ++argc; 76 } 77 /* Skip over word */ 78 while ( *bufp && (*bufp != '"') ) { 79 ++bufp; 80 } 81 } else { 82 if ( *bufp ) { 83 if ( argv ) { 84 argv[argc] = bufp; 85 } 86 ++argc; 87 } 88 /* Skip over word */ 89 while ( *bufp && ! isspace(*bufp) ) { 90 ++bufp; 91 } 92 } 93 if ( *bufp ) { 94 if ( argv ) { 95 *bufp = '\0'; 96 } 97 ++bufp; 98 } 99 } 100 if ( argv ) { 101 argv[argc] = NULL; 102 } 103 return(argc); 104 } 105 106 /* Show an error message */ 107 static void ShowError(const char *title, const char *message) 108 { 109 /* If USE_MESSAGEBOX is defined, you need to link with user32.lib */ 110 #ifdef USE_MESSAGEBOX 111 MessageBox(NULL, message, title, MB_ICONEXCLAMATION|MB_OK); 112 #else 113 fprintf(stderr, "%s: %s\n", title, message); 114 #endif 115 } 116 117 /* Pop up an out of memory message, returns to Windows */ 118 static BOOL OutOfMemory(void) 119 { 120 ShowError("Fatal Error", "Out of memory - aborting"); 121 return FALSE; 122 } 123 124 /* SDL_Quit() shouldn't be used with atexit() directly because 125 calling conventions may differ... */ 126 static void cleanup(void) 127 { 128 SDL_Quit(); 129 } 130 131 /* Remove the output files if there was no output written */ 132 static void cleanup_output(void) 133 { 134 #ifndef NO_STDIO_REDIRECT 135 FILE *file; 136 int empty; 137 #endif 138 139 /* Flush the output in case anything is queued */ 140 fclose(stdout); 141 fclose(stderr); 142 143 #ifndef NO_STDIO_REDIRECT 144 /* See if the files have any output in them */ 145 if ( stdoutPath[0] ) { 146 file = fopen(stdoutPath, TEXT("rb")); 147 if ( file ) { 148 empty = (fgetc(file) == EOF) ? 1 : 0; 149 fclose(file); 150 if ( empty ) { 151 remove(stdoutPath); 152 } 153 } 154 } 155 if ( stderrPath[0] ) { 156 file = fopen(stderrPath, TEXT("rb")); 157 if ( file ) { 158 empty = (fgetc(file) == EOF) ? 1 : 0; 159 fclose(file); 160 if ( empty ) { 161 remove(stderrPath); 162 } 163 } 164 } 165 #endif 166 } 167 168 #if defined(_MSC_VER) && !defined(_WIN32_WCE) 169 /* The VC++ compiler needs main defined */ 170 #define console_main main 171 #endif 172 173 /* This is where execution begins [console apps] */ 174 int console_main(int argc, char *argv[]) 175 { 176 size_t n; 177 char *bufp, *appname; 178 int status; 179 180 /* Get the class name from argv[0] */ 181 appname = argv[0]; 182 if ( (bufp=SDL_strrchr(argv[0], '\\')) != NULL ) { 183 appname = bufp+1; 184 } else 185 if ( (bufp=SDL_strrchr(argv[0], '/')) != NULL ) { 186 appname = bufp+1; 187 } 188 189 if ( (bufp=SDL_strrchr(appname, '.')) == NULL ) 190 n = SDL_strlen(appname); 191 else 192 n = (bufp-appname); 193 194 bufp = SDL_stack_alloc(char, n+1); 195 if ( bufp == NULL ) { 196 return OutOfMemory(); 197 } 198 SDL_strlcpy(bufp, appname, n+1); 199 appname = bufp; 200 201 /* Load SDL dynamic link library */ 202 if ( SDL_Init(SDL_INIT_NOPARACHUTE) < 0 ) { 203 ShowError("WinMain() error", SDL_GetError()); 204 return(FALSE); 205 } 206 atexit(cleanup_output); 207 atexit(cleanup); 208 209 /* Sam: 210 We still need to pass in the application handle so that 211 DirectInput will initialize properly when SDL_RegisterApp() 212 is called later in the video initialization. 213 */ 214 SDL_SetModuleHandle(GetModuleHandle(NULL)); 215 216 /* Run the application main() code */ 217 status = SDL_main(argc, argv); 218 219 /* Exit cleanly, calling atexit() functions */ 220 exit(status); 221 222 /* Hush little compiler, don't you cry... */ 223 return 0; 224 } 225 226 /* This is where execution begins [windowed apps] */ 227 #ifdef _WIN32_WCE 228 int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPWSTR szCmdLine, int sw) 229 #else 230 int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR szCmdLine, int sw) 231 #endif 232 { 233 HINSTANCE handle; 234 char **argv; 235 int argc; 236 char *cmdline; 237 #ifdef _WIN32_WCE 238 wchar_t *bufp; 239 int nLen; 240 #else 241 char *bufp; 242 size_t nLen; 243 #endif 244 #ifndef NO_STDIO_REDIRECT 245 DWORD pathlen; 246 #ifdef _WIN32_WCE 247 wchar_t path[MAX_PATH]; 248 #else 249 char path[MAX_PATH]; 250 #endif 251 FILE *newfp; 252 #endif 253 254 /* Start up DDHELP.EXE before opening any files, so DDHELP doesn't 255 keep them open. This is a hack.. hopefully it will be fixed 256 someday. DDHELP.EXE starts up the first time DDRAW.DLL is loaded. 257 */ 258 handle = LoadLibrary(TEXT("DDRAW.DLL")); 259 if ( handle != NULL ) { 260 FreeLibrary(handle); 261 } 262 263 #ifndef NO_STDIO_REDIRECT 264 pathlen = GetModuleFileName(NULL, path, SDL_arraysize(path)); 265 while ( pathlen > 0 && path[pathlen] != '\\' ) { 266 --pathlen; 267 } 268 path[pathlen] = '\0'; 269 270 #ifdef _WIN32_WCE 271 wcsncpy( stdoutPath, path, SDL_arraysize(stdoutPath) ); 272 wcsncat( stdoutPath, DIR_SEPERATOR STDOUT_FILE, SDL_arraysize(stdoutPath) ); 273 #else 274 SDL_strlcpy( stdoutPath, path, SDL_arraysize(stdoutPath) ); 275 SDL_strlcat( stdoutPath, DIR_SEPERATOR STDOUT_FILE, SDL_arraysize(stdoutPath) ); 276 #endif 277 278 /* Redirect standard input and standard output */ 279 newfp = freopen(stdoutPath, TEXT("w"), stdout); 280 281 #ifndef _WIN32_WCE 282 if ( newfp == NULL ) { /* This happens on NT */ 283 #if !defined(stdout) 284 stdout = fopen(stdoutPath, TEXT("w")); 285 #else 286 newfp = fopen(stdoutPath, TEXT("w")); 287 if ( newfp ) { 288 *stdout = *newfp; 289 } 290 #endif 291 } 292 #endif /* _WIN32_WCE */ 293 294 #ifdef _WIN32_WCE 295 wcsncpy( stderrPath, path, SDL_arraysize(stdoutPath) ); 296 wcsncat( stderrPath, DIR_SEPERATOR STDOUT_FILE, SDL_arraysize(stdoutPath) ); 297 #else 298 SDL_strlcpy( stderrPath, path, SDL_arraysize(stderrPath) ); 299 SDL_strlcat( stderrPath, DIR_SEPERATOR STDERR_FILE, SDL_arraysize(stderrPath) ); 300 #endif 301 302 newfp = freopen(stderrPath, TEXT("w"), stderr); 303 #ifndef _WIN32_WCE 304 if ( newfp == NULL ) { /* This happens on NT */ 305 #if !defined(stderr) 306 stderr = fopen(stderrPath, TEXT("w")); 307 #else 308 newfp = fopen(stderrPath, TEXT("w")); 309 if ( newfp ) { 310 *stderr = *newfp; 311 } 312 #endif 313 } 314 #endif /* _WIN32_WCE */ 315 316 setvbuf(stdout, NULL, _IOLBF, BUFSIZ); /* Line buffered */ 317 setbuf(stderr, NULL); /* No buffering */ 318 #endif /* !NO_STDIO_REDIRECT */ 319 320 #ifdef _WIN32_WCE 321 nLen = wcslen(szCmdLine)+128+1; 322 bufp = SDL_stack_alloc(wchar_t, nLen*2); 323 wcscpy (bufp, TEXT("\"")); 324 GetModuleFileName(NULL, bufp+1, 128-3); 325 wcscpy (bufp+wcslen(bufp), TEXT("\" ")); 326 wcsncpy(bufp+wcslen(bufp), szCmdLine,nLen-wcslen(bufp)); 327 nLen = wcslen(bufp)+1; 328 cmdline = SDL_stack_alloc(char, nLen); 329 if ( cmdline == NULL ) { 330 return OutOfMemory(); 331 } 332 WideCharToMultiByte(CP_ACP, 0, bufp, -1, cmdline, nLen, NULL, NULL); 333 #else 334 /* Grab the command line */ 335 bufp = GetCommandLine(); 336 nLen = SDL_strlen(bufp)+1; 337 cmdline = SDL_stack_alloc(char, nLen); 338 if ( cmdline == NULL ) { 339 return OutOfMemory(); 340 } 341 SDL_strlcpy(cmdline, bufp, nLen); 342 #endif 343 344 /* Parse it into argv and argc */ 345 argc = ParseCommandLine(cmdline, NULL); 346 argv = SDL_stack_alloc(char*, argc+1); 347 if ( argv == NULL ) { 348 return OutOfMemory(); 349 } 350 ParseCommandLine(cmdline, argv); 351 352 /* Run the main program (after a little SDL initialization) */ 353 console_main(argc, argv); 354 355 /* Hush little compiler, don't you cry... */ 356 return 0; 357 } 358
