| 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 | /* Set a variable to tell if the stdio redirect has been enabled. */ |
| 42 | static int stdioRedirectEnabled = 0; |
| 43 | |
| 44 | #ifdef _WIN32_WCE |
| 45 | static wchar_t stdoutPath[MAX_PATH]; |
| 46 | static wchar_t stderrPath[MAX_PATH]; |
| 47 | #else |
| 48 | static char stdoutPath[MAX_PATH]; |
| 49 | static char stderrPath[MAX_PATH]; |
| 50 | #endif |
| 51 | |
| 52 | #if defined(_WIN32_WCE) && _WIN32_WCE < 300 |
| 53 | /* seems to be undefined in Win CE although in online help */ |
| 54 | #define isspace(a) (((CHAR)a == ' ') || ((CHAR)a == '\t')) |
| 55 | #endif /* _WIN32_WCE < 300 */ |
| 56 | |
| 57 | static void UnEscapeQuotes( char *arg ) |
| 58 | { |
| 59 | char *last = NULL; |
| 60 | |
| 61 | while( *arg ) { |
| 62 | if( *arg == '"' && *last == '\\' ) { |
| 63 | char *c_curr = arg; |
| 64 | char *c_last = last; |
| 65 | |
| 66 | while( *c_curr ) { |
| 67 | *c_last = *c_curr; |
| 68 | c_last = c_curr; |
| 69 | c_curr++; |
| 70 | } |
| 71 | *c_last = '\0'; |
| 72 | } |
| 73 | last = arg; |
| 74 | arg++; |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | /* Parse a command line buffer into arguments */ |
| 79 | static int ParseCommandLine(char *cmdline, char **argv) |
| 80 | { |
| 81 | char *bufp; |
| 82 | char *lastp = NULL; |
| 83 | int argc, last_argc; |
| 84 | |
| 85 | argc = last_argc = 0; |
| 86 | for ( bufp = cmdline; *bufp; ) { |
| 87 | /* Skip leading whitespace */ |
| 88 | while ( isspace(*bufp) ) { |
| 89 | ++bufp; |
| 90 | } |
| 91 | /* Skip over argument */ |
| 92 | if ( *bufp == '"' ) { |
| 93 | ++bufp; |
| 94 | if ( *bufp ) { |
| 95 | if ( argv ) { |
| 96 | argv[argc] = bufp; |
| 97 | } |
| 98 | ++argc; |
| 99 | } |
| 100 | /* Skip over word */ |
| 101 | while ( *bufp && ( *bufp != '"' || *lastp == '\\' ) ) { |
| 102 | lastp = bufp; |
| 103 | ++bufp; |
| 104 | } |
| 105 | } else { |
| 106 | if ( *bufp ) { |
| 107 | if ( argv ) { |
| 108 | argv[argc] = bufp; |
| 109 | } |
| 110 | ++argc; |
| 111 | } |
| 112 | /* Skip over word */ |
| 113 | while ( *bufp && ! isspace(*bufp) ) { |
| 114 | ++bufp; |
| 115 | } |
| 116 | } |
| 117 | if ( *bufp ) { |
| 118 | if ( argv ) { |
| 119 | *bufp = '\0'; |
| 120 | } |
| 121 | ++bufp; |
| 122 | } |
| 123 | |
| 124 | /* Strip out \ from \" sequences */ |
| 125 | if( argv && last_argc != argc ) { |
| 126 | UnEscapeQuotes( argv[last_argc] ); |
| 127 | } |
| 128 | last_argc = argc; |
| 129 | } |
| 130 | if ( argv ) { |
| 131 | argv[argc] = NULL; |
| 132 | } |
| 133 | return(argc); |
| 134 | } |
| 135 | |
| 136 | /* Show an error message */ |
| 137 | static void ShowError(const char *title, const char *message) |
| 138 | { |
| 139 | /* If USE_MESSAGEBOX is defined, you need to link with user32.lib */ |
| 140 | #ifdef USE_MESSAGEBOX |
| 141 | MessageBox(NULL, message, title, MB_ICONEXCLAMATION|MB_OK); |
| 142 | #else |
| 143 | fprintf(stderr, "%s: %s\n", title, message); |
| 144 | #endif |
| 145 | } |
| 146 | |
| 147 | /* Pop up an out of memory message, returns to Windows */ |
| 148 | static BOOL OutOfMemory(void) |
| 149 | { |
| 150 | ShowError("Fatal Error", "Out of memory - aborting"); |
| 151 | return FALSE; |
| 152 | } |
| 153 | |
| 154 | /* SDL_Quit() shouldn't be used with atexit() directly because |
| 155 | calling conventions may differ... */ |
| 156 | static void cleanup(void) |
| 157 | { |
| 158 | SDL_Quit(); |
| 159 | } |
| 160 | |
| 161 | /* Remove the output files if there was no output written */ |
| 162 | static void cleanup_output(void) { |
| 163 | FILE *file; |
| 164 | int empty; |
| 165 | |
| 166 | /* Flush the output in case anything is queued */ |
| 167 | fclose(stdout); |
| 168 | fclose(stderr); |
| 169 | |
| 170 | /* Without redirection we're done */ |
| 171 | if (!stdioRedirectEnabled) { |
| 172 | return; |
| 173 | } |
| 174 | |
| 175 | /* See if the files have any output in them */ |
| 176 | if ( stdoutPath[0] ) { |
| 177 | file = fopen(stdoutPath, TEXT("rb")); |
| 178 | if ( file ) { |
| 179 | empty = (fgetc(file) == EOF) ? 1 : 0; |
| 180 | fclose(file); |
| 181 | if ( empty ) { |
| 182 | remove(stdoutPath); |
| 183 | } |
| 184 | } |
| 185 | } |
| 186 | if ( stderrPath[0] ) { |
| 187 | file = fopen(stderrPath, TEXT("rb")); |
| 188 | if ( file ) { |
| 189 | empty = (fgetc(file) == EOF) ? 1 : 0; |
| 190 | fclose(file); |
| 191 | if ( empty ) { |
| 192 | remove(stderrPath); |
| 193 | } |
| 194 | } |
| 195 | } |
| 196 | } |
| 197 | |
| 198 | /* Redirect the output (stdout and stderr) to a file */ |
| 199 | static void redirect_output(void) |
| 200 | { |
| 201 | DWORD pathlen; |
| 202 | #ifdef _WIN32_WCE |
| 203 | wchar_t path[MAX_PATH]; |
| 204 | #else |
| 205 | char path[MAX_PATH]; |
| 206 | #endif |
| 207 | FILE *newfp; |
| 208 | |
| 209 | pathlen = GetModuleFileName(NULL, path, SDL_arraysize(path)); |
| 210 | while ( pathlen > 0 && path[pathlen] != '\\' ) { |
| 211 | --pathlen; |
| 212 | } |
| 213 | path[pathlen] = '\0'; |
| 214 | |
| 215 | #ifdef _WIN32_WCE |
| 216 | wcsncpy( stdoutPath, path, SDL_arraysize(stdoutPath) ); |
| 217 | wcsncat( stdoutPath, DIR_SEPERATOR STDOUT_FILE, SDL_arraysize(stdoutPath) ); |
| 218 | #else |
| 219 | SDL_strlcpy( stdoutPath, path, SDL_arraysize(stdoutPath) ); |
| 220 | SDL_strlcat( stdoutPath, DIR_SEPERATOR STDOUT_FILE, SDL_arraysize(stdoutPath) ); |
| 221 | #endif |
| 222 | |
| 223 | /* Redirect standard input and standard output */ |
| 224 | newfp = freopen(stdoutPath, TEXT("w"), stdout); |
| 225 | |
| 226 | #ifndef _WIN32_WCE |
| 227 | if ( newfp == NULL ) { /* This happens on NT */ |
| 228 | #if !defined(stdout) |
| 229 | stdout = fopen(stdoutPath, TEXT("w")); |
| 230 | #else |
| 231 | newfp = fopen(stdoutPath, TEXT("w")); |
| 232 | if ( newfp ) { |
| 233 | *stdout = *newfp; |
| 234 | } |
| 235 | #endif |
| 236 | } |
| 237 | #endif /* _WIN32_WCE */ |
| 238 | |
| 239 | #ifdef _WIN32_WCE |
| 240 | wcsncpy( stderrPath, path, SDL_arraysize(stdoutPath) ); |
| 241 | wcsncat( stderrPath, DIR_SEPERATOR STDOUT_FILE, SDL_arraysize(stdoutPath) ); |
| 242 | #else |
| 243 | SDL_strlcpy( stderrPath, path, SDL_arraysize(stderrPath) ); |
| 244 | SDL_strlcat( stderrPath, DIR_SEPERATOR STDERR_FILE, SDL_arraysize(stderrPath) ); |
| 245 | #endif |
| 246 | |
| 247 | newfp = freopen(stderrPath, TEXT("w"), stderr); |
| 248 | #ifndef _WIN32_WCE |
| 249 | if ( newfp == NULL ) { /* This happens on NT */ |
| 250 | #if !defined(stderr) |
| 251 | stderr = fopen(stderrPath, TEXT("w")); |
| 252 | #else |
| 253 | newfp = fopen(stderrPath, TEXT("w")); |
| 254 | if ( newfp ) { |
| 255 | *stderr = *newfp; |
| 256 | } |
| 257 | #endif |
| 258 | } |
| 259 | #endif /* _WIN32_WCE */ |
| 260 | |
| 261 | setvbuf(stdout, NULL, _IOLBF, BUFSIZ); /* Line buffered */ |
| 262 | setbuf(stderr, NULL); /* No buffering */ |
| 263 | stdioRedirectEnabled = 1; |
| 264 | } |
| 265 | |
| 266 | #if defined(_MSC_VER) && !defined(_WIN32_WCE) |
| 267 | /* The VC++ compiler needs main defined */ |
| 268 | #define console_main main |
| 269 | #endif |
| 270 | |
| 271 | /* This is where execution begins [console apps] */ |
| 272 | int console_main(int argc, char *argv[]) |
| 273 | { |
| 274 | size_t n; |
| 275 | char *bufp, *appname; |
| 276 | int status; |
| 277 | |
| 278 | /* Get the class name from argv[0] */ |
| 279 | appname = argv[0]; |
| 280 | if ( (bufp=SDL_strrchr(argv[0], '\\')) != NULL ) { |
| 281 | appname = bufp+1; |
| 282 | } else |
| 283 | if ( (bufp=SDL_strrchr(argv[0], '/')) != NULL ) { |
| 284 | appname = bufp+1; |
| 285 | } |
| 286 | |
| 287 | if ( (bufp=SDL_strrchr(appname, '.')) == NULL ) |
| 288 | n = SDL_strlen(appname); |
| 289 | else |
| 290 | n = (bufp-appname); |
| 291 | |
| 292 | bufp = SDL_stack_alloc(char, n+1); |
| 293 | if ( bufp == NULL ) { |
| 294 | return OutOfMemory(); |
| 295 | } |
| 296 | SDL_strlcpy(bufp, appname, n+1); |
| 297 | appname = bufp; |
| 298 | |
| 299 | /* Load SDL dynamic link library */ |
| 300 | if ( SDL_Init(SDL_INIT_NOPARACHUTE) < 0 ) { |
| 301 | ShowError("WinMain() error", SDL_GetError()); |
| 302 | return(FALSE); |
| 303 | } |
| 304 | atexit(cleanup_output); |
| 305 | atexit(cleanup); |
| 306 | |
| 307 | /* Sam: |
| 308 | We still need to pass in the application handle so that |
| 309 | DirectInput will initialize properly when SDL_RegisterApp() |
| 310 | is called later in the video initialization. |
| 311 | */ |
| 312 | SDL_SetModuleHandle(GetModuleHandle(NULL)); |
| 313 | |
| 314 | /* Run the application main() code */ |
| 315 | status = SDL_main(argc, argv); |
| 316 | |
| 317 | /* Exit cleanly, calling atexit() functions */ |
| 318 | exit(status); |
| 319 | |
| 320 | /* Hush little compiler, don't you cry... */ |
| 321 | return 0; |
| 322 | } |
| 323 | |
| 324 | /* This is where execution begins [windowed apps] */ |
| 325 | #ifdef _WIN32_WCE |
| 326 | int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPWSTR szCmdLine, int sw) |
| 327 | #else |
| 328 | int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR szCmdLine, int sw) |
| 329 | #endif |
| 330 | { |
| 331 | HINSTANCE handle; |
| 332 | char **argv; |
| 333 | int argc; |
| 334 | char *cmdline; |
| 335 | char *env_str; |
| 336 | #ifdef _WIN32_WCE |
| 337 | wchar_t *bufp; |
| 338 | int nLen; |
| 339 | #else |
| 340 | char *bufp; |
| 341 | size_t nLen; |
| 342 | #endif |
| 343 | |
| 344 | /* Start up DDHELP.EXE before opening any files, so DDHELP doesn't |
| 345 | keep them open. This is a hack.. hopefully it will be fixed |
| 346 | someday. DDHELP.EXE starts up the first time DDRAW.DLL is loaded. |
| 347 | */ |
| 348 | handle = LoadLibrary(TEXT("DDRAW.DLL")); |
| 349 | if ( handle != NULL ) { |
| 350 | FreeLibrary(handle); |
| 351 | } |
| 352 | |
| 353 | /* Check for stdio redirect settings and do the redirection */ |
| 354 | if ((env_str = SDL_getenv("SDL_STDIO_REDIRECT"))) { |
| 355 | if (SDL_atoi(env_str)) { |
| 356 | redirect_output(); |
| 357 | } |
| 358 | } |
| 359 | #ifndef NO_STDIO_REDIRECT |
| 360 | else { |
| 361 | redirect_output(); |
| 362 | } |
| 363 | #endif |
| 364 | |
| 365 | #ifdef _WIN32_WCE |
| 366 | nLen = wcslen(szCmdLine)+128+1; |
| 367 | bufp = SDL_stack_alloc(wchar_t, nLen*2); |
| 368 | wcscpy (bufp, TEXT("\"")); |
| 369 | GetModuleFileName(NULL, bufp+1, 128-3); |
| 370 | wcscpy (bufp+wcslen(bufp), TEXT("\" ")); |
| 371 | wcsncpy(bufp+wcslen(bufp), szCmdLine,nLen-wcslen(bufp)); |
| 372 | nLen = wcslen(bufp)+1; |
| 373 | cmdline = SDL_stack_alloc(char, nLen); |
| 374 | if ( cmdline == NULL ) { |
| 375 | return OutOfMemory(); |
| 376 | } |
| 377 | WideCharToMultiByte(CP_ACP, 0, bufp, -1, cmdline, nLen, NULL, NULL); |
| 378 | #else |
| 379 | /* Grab the command line */ |
| 380 | bufp = GetCommandLine(); |
| 381 | nLen = SDL_strlen(bufp)+1; |
| 382 | cmdline = SDL_stack_alloc(char, nLen); |
| 383 | if ( cmdline == NULL ) { |
| 384 | return OutOfMemory(); |
| 385 | } |
| 386 | SDL_strlcpy(cmdline, bufp, nLen); |
| 387 | #endif |
| 388 | |
| 389 | /* Parse it into argv and argc */ |
| 390 | argc = ParseCommandLine(cmdline, NULL); |
| 391 | argv = SDL_stack_alloc(char*, argc+1); |
| 392 | if ( argv == NULL ) { |
| 393 | return OutOfMemory(); |
| 394 | } |
| 395 | ParseCommandLine(cmdline, argv); |
| 396 | |
| 397 | /* Run the main program (after a little SDL initialization) */ |
| 398 | console_main(argc, argv); |
| 399 | |
| 400 | /* Hush little compiler, don't you cry... */ |
| 401 | return 0; |
| 402 | } |