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comparison src/main/win32/SDL_win32_main.c @ 754:623b453a3219

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Fixed "dist" make target for newer versions of automake
author Sam Lantinga <slouken@libsdl.org>
date Sun, 14 Dec 2003 06:25:53 +0000
parents
children ed57c876700d
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753:b14fdadd8311 754:623b453a3219
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 <string.h>
9 #include <ctype.h>
10 #include <stdlib.h>
11
12 #include <windows.h>
13 #include <malloc.h> /* For _alloca() */
14
15 #ifdef _WIN32_WCE
16 # define DIR_SEPERATOR TEXT("\\")
17 # define _getcwd(str,len) wcscpy(str,DIR_SEPERATOR);
18 # define setbuf(x)
19 # define setvbuf(x)
20 # define fopen _wfopen
21 # define freopen _wfreopen
22 # define remove(x) DeleteFile(x)
23 # define strcat wcscat
24 #else
25 # define DIR_SEPERATOR TEXT("/")
26 # include <direct.h>
27 #endif
28
29 /* Include the SDL main definition header */
30 #include "SDL.h"
31 #include "SDL_main.h"
32
33 #ifdef main
34 # ifndef _WIN32_WCE_EMULATION
35 # undef main
36 # endif /* _WIN32_WCE_EMULATION */
37 #endif /* main */
38
39 /* The standard output files */
40 #define STDOUT_FILE TEXT("stdout.txt")
41 #define STDERR_FILE TEXT("stderr.txt")
42
43 #ifndef NO_STDIO_REDIRECT
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 #endif
52
53 #if defined(_WIN32_WCE) && _WIN32_WCE < 300
54 /* seems to be undefined in Win CE although in online help */
55 #define isspace(a) (((CHAR)a == ' ') || ((CHAR)a == '\t'))
56
57 /* seems to be undefined in Win CE although in online help */
58 char *strrchr(char *str, int c)
59 {
60 char *p;
61
62 /* Skip to the end of the string */
63 p=str;
64 while (*p)
65 p++;
66
67 /* Look for the given character */
68 while ( (p >= str) && (*p != (CHAR)c) )
69 p--;
70
71 /* Return NULL if character not found */
72 if ( p < str ) {
73 p = NULL;
74 }
75 return p;
76 }
77 #endif /* _WIN32_WCE < 300 */
78
79 /* Parse a command line buffer into arguments */
80 static int ParseCommandLine(char *cmdline, char **argv)
81 {
82 char *bufp;
83 int argc;
84
85 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 != '"') ) {
102 ++bufp;
103 }
104 } else {
105 if ( *bufp ) {
106 if ( argv ) {
107 argv[argc] = bufp;
108 }
109 ++argc;
110 }
111 /* Skip over word */
112 while ( *bufp && ! isspace(*bufp) ) {
113 ++bufp;
114 }
115 }
116 if ( *bufp ) {
117 if ( argv ) {
118 *bufp = '\0';
119 }
120 ++bufp;
121 }
122 }
123 if ( argv ) {
124 argv[argc] = NULL;
125 }
126 return(argc);
127 }
128
129 /* Show an error message */
130 static void ShowError(const char *title, const char *message)
131 {
132 /* If USE_MESSAGEBOX is defined, you need to link with user32.lib */
133 #ifdef USE_MESSAGEBOX
134 MessageBox(NULL, message, title, MB_ICONEXCLAMATION|MB_OK);
135 #else
136 fprintf(stderr, "%s: %s\n", title, message);
137 #endif
138 }
139
140 /* Pop up an out of memory message, returns to Windows */
141 static BOOL OutOfMemory(void)
142 {
143 ShowError("Fatal Error", "Out of memory - aborting");
144 return FALSE;
145 }
146
147 /* Remove the output files if there was no output written */
148 static void __cdecl cleanup_output(void)
149 {
150 #ifndef NO_STDIO_REDIRECT
151 FILE *file;
152 int empty;
153 #endif
154
155 /* Flush the output in case anything is queued */
156 fclose(stdout);
157 fclose(stderr);
158
159 #ifndef NO_STDIO_REDIRECT
160 /* See if the files have any output in them */
161 if ( stdoutPath[0] ) {
162 file = fopen(stdoutPath, TEXT("rb"));
163 if ( file ) {
164 empty = (fgetc(file) == EOF) ? 1 : 0;
165 fclose(file);
166 if ( empty ) {
167 remove(stdoutPath);
168 }
169 }
170 }
171 if ( stderrPath[0] ) {
172 file = fopen(stderrPath, TEXT("rb"));
173 if ( file ) {
174 empty = (fgetc(file) == EOF) ? 1 : 0;
175 fclose(file);
176 if ( empty ) {
177 remove(stderrPath);
178 }
179 }
180 }
181 #endif
182 }
183
184 #if defined(_MSC_VER) && !defined(_WIN32_WCE)
185 /* The VC++ compiler needs main defined */
186 #define console_main main
187 #endif
188
189 /* This is where execution begins [console apps] */
190 int console_main(int argc, char *argv[])
191 {
192 int n;
193 char *bufp, *appname;
194
195 /* Get the class name from argv[0] */
196 appname = argv[0];
197 if ( (bufp=strrchr(argv[0], '\\')) != NULL ) {
198 appname = bufp+1;
199 } else
200 if ( (bufp=strrchr(argv[0], '/')) != NULL ) {
201 appname = bufp+1;
202 }
203
204 if ( (bufp=strrchr(appname, '.')) == NULL )
205 n = strlen(appname);
206 else
207 n = (bufp-appname);
208
209 bufp = (char *)alloca(n+1);
210 if ( bufp == NULL ) {
211 return OutOfMemory();
212 }
213 strncpy(bufp, appname, n);
214 bufp[n] = '\0';
215 appname = bufp;
216
217 /* Load SDL dynamic link library */
218 if ( SDL_Init(SDL_INIT_NOPARACHUTE) < 0 ) {
219 ShowError("WinMain() error", SDL_GetError());
220 return(FALSE);
221 }
222 atexit(cleanup_output);
223 atexit(SDL_Quit);
224
225 #ifndef DISABLE_VIDEO
226 #if 0
227 /* Create and register our class *
228 DJM: If we do this here, the user nevers gets a chance to
229 putenv(SDL_WINDOWID). This is already called later by
230 the (DIB|DX5)_CreateWindow function, so it should be
231 safe to comment it out here.
232 if ( SDL_RegisterApp(appname, CS_BYTEALIGNCLIENT,
233 GetModuleHandle(NULL)) < 0 ) {
234 ShowError("WinMain() error", SDL_GetError());
235 exit(1);
236 }*/
237 #else
238 /* Sam:
239 We still need to pass in the application handle so that
240 DirectInput will initialize properly when SDL_RegisterApp()
241 is called later in the video initialization.
242 */
243 SDL_SetModuleHandle(GetModuleHandle(NULL));
244 #endif /* 0 */
245 #endif /* !DISABLE_VIDEO */
246
247 /* Run the application main() code */
248 SDL_main(argc, argv);
249
250 /* Exit cleanly, calling atexit() functions */
251 exit(0);
252
253 /* Hush little compiler, don't you cry... */
254 return(0);
255 }
256
257 /* This is where execution begins [windowed apps] */
258 #ifdef _WIN32_WCE
259 int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPWSTR szCmdLine, int sw)
260 #else
261 int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR szCmdLine, int sw)
262 #endif
263 {
264 HINSTANCE handle;
265 char **argv;
266 int argc;
267 char *cmdline;
268 #ifdef _WIN32_WCE
269 wchar_t *bufp;
270 int nLen;
271 #else
272 char *bufp;
273 #endif
274 #ifndef NO_STDIO_REDIRECT
275 FILE *newfp;
276 #endif
277
278 /* Start up DDHELP.EXE before opening any files, so DDHELP doesn't
279 keep them open. This is a hack.. hopefully it will be fixed
280 someday. DDHELP.EXE starts up the first time DDRAW.DLL is loaded.
281 */
282 handle = LoadLibrary(TEXT("DDRAW.DLL"));
283 if ( handle != NULL ) {
284 FreeLibrary(handle);
285 }
286
287 #ifndef NO_STDIO_REDIRECT
288 _getcwd( stdoutPath, sizeof( stdoutPath ) );
289 strcat( stdoutPath, DIR_SEPERATOR STDOUT_FILE );
290
291 /* Redirect standard input and standard output */
292 newfp = freopen(stdoutPath, TEXT("w"), stdout);
293
294 #ifndef _WIN32_WCE
295 if ( newfp == NULL ) { /* This happens on NT */
296 #if !defined(stdout)
297 stdout = fopen(stdoutPath, TEXT("w"));
298 #else
299 newfp = fopen(stdoutPath, TEXT("w"));
300 if ( newfp ) {
301 *stdout = *newfp;
302 }
303 #endif
304 }
305 #endif /* _WIN32_WCE */
306
307 _getcwd( stderrPath, sizeof( stderrPath ) );
308 strcat( stderrPath, DIR_SEPERATOR STDERR_FILE );
309
310 newfp = freopen(stderrPath, TEXT("w"), stderr);
311 #ifndef _WIN32_WCE
312 if ( newfp == NULL ) { /* This happens on NT */
313 #if !defined(stderr)
314 stderr = fopen(stderrPath, TEXT("w"));
315 #else
316 newfp = fopen(stderrPath, TEXT("w"));
317 if ( newfp ) {
318 *stderr = *newfp;
319 }
320 #endif
321 }
322 #endif /* _WIN32_WCE */
323
324 setvbuf(stdout, NULL, _IOLBF, BUFSIZ); /* Line buffered */
325 setbuf(stderr, NULL); /* No buffering */
326 #endif /* !NO_STDIO_REDIRECT */
327
328 #ifdef _WIN32_WCE
329 nLen = wcslen(szCmdLine)+128+1;
330 bufp = (wchar_t *)alloca(nLen*2);
331 wcscpy (bufp, TEXT("\""));
332 GetModuleFileName(NULL, bufp+1, 128-3);
333 wcscpy (bufp+wcslen(bufp), TEXT("\" "));
334 wcsncpy(bufp+wcslen(bufp), szCmdLine,nLen-wcslen(bufp));
335 nLen = wcslen(bufp)+1;
336 cmdline = (char *)alloca(nLen);
337 if ( cmdline == NULL ) {
338 return OutOfMemory();
339 }
340 WideCharToMultiByte(CP_ACP, 0, bufp, -1, cmdline, nLen, NULL, NULL);
341 #else
342 /* Grab the command line (use alloca() on Windows) */
343 bufp = GetCommandLine();
344 cmdline = (char *)alloca(strlen(bufp)+1);
345 if ( cmdline == NULL ) {
346 return OutOfMemory();
347 }
348 strcpy(cmdline, bufp);
349 #endif
350
351 /* Parse it into argv and argc */
352 argc = ParseCommandLine(cmdline, NULL);
353 argv = (char **)alloca((argc+1)*(sizeof *argv));
354 if ( argv == NULL ) {
355 return OutOfMemory();
356 }
357 ParseCommandLine(cmdline, argv);
358
359 /* Run the main program (after a little SDL initialization) */
360 return(console_main(argc, argv));
361 }