SDL_win32_main.c
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/*
SDL_main.c, placed in the public domain by Sam Lantinga 4/13/98
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The WinMain function -- calls your program's main() function
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*/
#include <stdio.h>
#include <stdlib.h>
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#include "SDL_windows.h"
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#ifdef _WIN32_WCE
# define DIR_SEPERATOR TEXT("\\")
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# undef _getcwd
# define _getcwd(str,len) wcscpy(str,TEXT(""))
# define setbuf(f,b)
# define setvbuf(w,x,y,z)
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# define fopen _wfopen
# define freopen _wfreopen
# define remove(x) DeleteFile(x)
#else
# define DIR_SEPERATOR TEXT("/")
# include <direct.h>
#endif
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/* Include the SDL main definition header */
#include "SDL.h"
#include "SDL_main.h"
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#ifdef main
# ifndef _WIN32_WCE_EMULATION
# undef main
# endif /* _WIN32_WCE_EMULATION */
#endif /* main */
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/* The standard output files */
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#define STDOUT_FILE TEXT("stdout.txt")
#define STDERR_FILE TEXT("stderr.txt")
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#ifndef NO_STDIO_REDIRECT
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# ifdef _WIN32_WCE
static wchar_t stdoutPath[MAX_PATH];
static wchar_t stderrPath[MAX_PATH];
# else
static char stdoutPath[MAX_PATH];
static char stderrPath[MAX_PATH];
# endif
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#if defined(_WIN32_WCE) && _WIN32_WCE < 300
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/* seems to be undefined in Win CE although in online help */
#define isspace(a) (((CHAR)a == ' ') || ((CHAR)a == '\t'))
/* seems to be undefined in Win CE although in online help */
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char *SDL_strrchr(char *str, int c)
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{
char *p;
/* Skip to the end of the string */
p=str;
while (*p)
p++;
/* Look for the given character */
while ( (p >= str) && (*p != (CHAR)c) )
p--;
/* Return NULL if character not found */
if ( p < str ) {
p = NULL;
}
return p;
}
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#endif /* _WIN32_WCE < 300 */
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/* Parse a command line buffer into arguments */
static int ParseCommandLine(char *cmdline, char **argv)
{
char *bufp;
int argc;
argc = 0;
for ( bufp = cmdline; *bufp; ) {
/* Skip leading whitespace */
while ( isspace(*bufp) ) {
++bufp;
}
/* Skip over argument */
if ( *bufp == '"' ) {
++bufp;
if ( *bufp ) {
if ( argv ) {
argv[argc] = bufp;
}
++argc;
}
/* Skip over word */
while ( *bufp && (*bufp != '"') ) {
++bufp;
}
} else {
if ( *bufp ) {
if ( argv ) {
argv[argc] = bufp;
}
++argc;
}
/* Skip over word */
while ( *bufp && ! isspace(*bufp) ) {
++bufp;
}
}
if ( *bufp ) {
if ( argv ) {
*bufp = '\0';
}
++bufp;
}
}
if ( argv ) {
argv[argc] = NULL;
}
return(argc);
}
/* Show an error message */
static void ShowError(const char *title, const char *message)
{
/* If USE_MESSAGEBOX is defined, you need to link with user32.lib */
#ifdef USE_MESSAGEBOX
MessageBox(NULL, message, title, MB_ICONEXCLAMATION|MB_OK);
#else
fprintf(stderr, "%s: %s\n", title, message);
#endif
}
/* Pop up an out of memory message, returns to Windows */
static BOOL OutOfMemory(void)
{
ShowError("Fatal Error", "Out of memory - aborting");
return FALSE;
}
/* Remove the output files if there was no output written */
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static void __cdecl cleanup_output(void)
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{
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#ifndef NO_STDIO_REDIRECT
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FILE *file;
int empty;
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/* Flush the output in case anything is queued */
fclose(stdout);
fclose(stderr);
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#ifndef NO_STDIO_REDIRECT
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/* See if the files have any output in them */
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if ( stdoutPath[0] ) {
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file = fopen(stdoutPath, TEXT("rb"));
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if ( file ) {
empty = (fgetc(file) == EOF) ? 1 : 0;
fclose(file);
if ( empty ) {
remove(stdoutPath);
}
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}
}
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if ( stderrPath[0] ) {
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file = fopen(stderrPath, TEXT("rb"));
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if ( file ) {
empty = (fgetc(file) == EOF) ? 1 : 0;
fclose(file);
if ( empty ) {
remove(stderrPath);
}
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}
}
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}
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#if defined(_MSC_VER) && !defined(_WIN32_WCE)
/* The VC++ compiler needs main defined */
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#define console_main main
#endif
/* This is where execution begins [console apps] */
int console_main(int argc, char *argv[])
{
int n;
char *bufp, *appname;
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int status;
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/* Get the class name from argv[0] */
appname = argv[0];
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if ( (bufp=SDL_strrchr(argv[0], '\\')) != NULL ) {
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appname = bufp+1;
} else
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if ( (bufp=SDL_strrchr(argv[0], '/')) != NULL ) {
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appname = bufp+1;
}
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if ( (bufp=SDL_strrchr(appname, '.')) == NULL )
n = SDL_strlen(appname);
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else
n = (bufp-appname);
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bufp = SDL_stack_alloc(char, n+1);
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if ( bufp == NULL ) {
return OutOfMemory();
}
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SDL_strlcpy(bufp, appname, n);
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appname = bufp;
/* Load SDL dynamic link library */
if ( SDL_Init(SDL_INIT_NOPARACHUTE) < 0 ) {
ShowError("WinMain() error", SDL_GetError());
return(FALSE);
}
atexit(cleanup_output);
atexit(SDL_Quit);
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/* Sam:
We still need to pass in the application handle so that
DirectInput will initialize properly when SDL_RegisterApp()
is called later in the video initialization.
*/
SDL_SetModuleHandle(GetModuleHandle(NULL));
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/* Run the application main() code */
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status = SDL_main(argc, argv);
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/* Exit cleanly, calling atexit() functions */
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exit(status);
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/* Hush little compiler, don't you cry... */
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return 0;
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}
/* This is where execution begins [windowed apps] */
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#ifdef _WIN32_WCE
int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPWSTR szCmdLine, int sw)
#else
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int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR szCmdLine, int sw)
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{
HINSTANCE handle;
char **argv;
int argc;
char *cmdline;
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DWORD pathlen;
#ifdef _WIN32_WCE
wchar_t path[MAX_PATH];
#else
char path[MAX_PATH];
#endif
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#ifdef _WIN32_WCE
wchar_t *bufp;
int nLen;
#else
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char *bufp;
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size_t nLen;
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#ifndef NO_STDIO_REDIRECT
FILE *newfp;
#endif
/* Start up DDHELP.EXE before opening any files, so DDHELP doesn't
keep them open. This is a hack.. hopefully it will be fixed
someday. DDHELP.EXE starts up the first time DDRAW.DLL is loaded.
*/
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handle = LoadLibrary(TEXT("DDRAW.DLL"));
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if ( handle != NULL ) {
FreeLibrary(handle);
}
#ifndef NO_STDIO_REDIRECT
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pathlen = GetModuleFileName(NULL, path, SDL_arraysize(path));
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while ( pathlen > 0 && path[pathlen] != '\\' ) {
--pathlen;
}
path[pathlen] = '\0';
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SDL_strlcpy( stdoutPath, path, SDL_arraysize(stdoutPath) );
SDL_strlcat( stdoutPath, DIR_SEPERATOR STDOUT_FILE, SDL_arraysize(stdoutPath) );
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/* Redirect standard input and standard output */
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newfp = freopen(stdoutPath, TEXT("w"), stdout);
#ifndef _WIN32_WCE
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if ( newfp == NULL ) { /* This happens on NT */
#if !defined(stdout)
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stdout = fopen(stdoutPath, TEXT("w"));
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#else
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newfp = fopen(stdoutPath, TEXT("w"));
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if ( newfp ) {
*stdout = *newfp;
}
#endif
}
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#endif /* _WIN32_WCE */
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SDL_strlcpy( stderrPath, path, SDL_arraysize(stderrPath) );
SDL_strlcat( stderrPath, DIR_SEPERATOR STDERR_FILE, SDL_arraysize(stderrPath) );
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newfp = freopen(stderrPath, TEXT("w"), stderr);
#ifndef _WIN32_WCE
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if ( newfp == NULL ) { /* This happens on NT */
#if !defined(stderr)
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stderr = fopen(stderrPath, TEXT("w"));
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#else
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newfp = fopen(stderrPath, TEXT("w"));
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if ( newfp ) {
*stderr = *newfp;
}
#endif
}
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#endif /* _WIN32_WCE */
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setvbuf(stdout, NULL, _IOLBF, BUFSIZ); /* Line buffered */
setbuf(stderr, NULL); /* No buffering */
#endif /* !NO_STDIO_REDIRECT */
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#ifdef _WIN32_WCE
nLen = wcslen(szCmdLine)+128+1;
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bufp = SDL_stack_alloc(wchar_t, nLen*2);
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wcscpy (bufp, TEXT("\""));
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GetModuleFileName(NULL, bufp+1, 128-3);
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wcscpy (bufp+wcslen(bufp), TEXT("\" "));
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wcsncpy(bufp+wcslen(bufp), szCmdLine,nLen-wcslen(bufp));
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nLen = wcslen(bufp)+1;
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cmdline = SDL_stack_alloc(wchar_t, nLen);
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if ( cmdline == NULL ) {
return OutOfMemory();
}
WideCharToMultiByte(CP_ACP, 0, bufp, -1, cmdline, nLen, NULL, NULL);
#else
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/* Grab the command line */
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bufp = GetCommandLine();
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nLen = SDL_strlen(bufp)+1;
cmdline = SDL_stack_alloc(char, nLen);
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if ( cmdline == NULL ) {
return OutOfMemory();
}
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SDL_strlcpy(cmdline, bufp, nLen);
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/* Parse it into argv and argc */
argc = ParseCommandLine(cmdline, NULL);
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argv = SDL_stack_alloc(char*, argc+1);
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if ( argv == NULL ) {
return OutOfMemory();
}
ParseCommandLine(cmdline, argv);
/* Run the main program (after a little SDL initialization) */
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console_main(argc, argv);
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/* Hush little compiler, don't you cry... */
return 0;
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}