diff options
Diffstat (limited to 'source/3rd-party/SDL2/src/main/windows/SDL_windows_main.c')
| -rw-r--r-- | source/3rd-party/SDL2/src/main/windows/SDL_windows_main.c | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/source/3rd-party/SDL2/src/main/windows/SDL_windows_main.c b/source/3rd-party/SDL2/src/main/windows/SDL_windows_main.c new file mode 100644 index 0000000..9c07cda --- /dev/null +++ b/source/3rd-party/SDL2/src/main/windows/SDL_windows_main.c @@ -0,0 +1,209 @@ +/* + SDL_windows_main.c, placed in the public domain by Sam Lantinga 4/13/98 + + The WinMain function -- calls your program's main() function +*/ +#include "SDL_config.h" + +#ifdef __WIN32__ + +/* Include this so we define UNICODE properly */ +#include "../../core/windows/SDL_windows.h" + +/* Include the SDL main definition header */ +#include "SDL.h" +#include "SDL_main.h" + +#ifdef main +# undef main +#endif /* main */ + +static void +UnEscapeQuotes(char *arg) +{ + char *last = NULL; + + while (*arg) { + if (*arg == '"' && (last != NULL && *last == '\\')) { + char *c_curr = arg; + char *c_last = last; + + while (*c_curr) { + *c_last = *c_curr; + c_last = c_curr; + c_curr++; + } + *c_last = '\0'; + } + last = arg; + arg++; + } +} + +/* Parse a command line buffer into arguments */ +static int +ParseCommandLine(char *cmdline, char **argv) +{ + char *bufp; + char *lastp = NULL; + int argc, last_argc; + + argc = last_argc = 0; + for (bufp = cmdline; *bufp;) { + /* Skip leading whitespace */ + while (*bufp == ' ' || *bufp == '\t') { + ++bufp; + } + /* Skip over argument */ + if (*bufp == '"') { + ++bufp; + if (*bufp) { + if (argv) { + argv[argc] = bufp; + } + ++argc; + } + /* Skip over word */ + lastp = bufp; + while (*bufp && (*bufp != '"' || *lastp == '\\')) { + lastp = bufp; + ++bufp; + } + } else { + if (*bufp) { + if (argv) { + argv[argc] = bufp; + } + ++argc; + } + /* Skip over word */ + while (*bufp && (*bufp != ' ' && *bufp != '\t')) { + ++bufp; + } + } + if (*bufp) { + if (argv) { + *bufp = '\0'; + } + ++bufp; + } + + /* Strip out \ from \" sequences */ + if (argv && last_argc != argc) { + UnEscapeQuotes(argv[last_argc]); + } + last_argc = argc; + } + if (argv) { + argv[argc] = NULL; + } + return (argc); +} + +/* Pop up an out of memory message, returns to Windows */ +static BOOL +OutOfMemory(void) +{ + SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Fatal Error", "Out of memory - aborting", NULL); + return FALSE; +} + +#if defined(_MSC_VER) +/* The VC++ compiler needs main/wmain defined */ +# define console_ansi_main main +# if UNICODE +# define console_wmain wmain +# endif +#endif + +/* Gets the arguments with GetCommandLine, converts them to argc and argv + and calls SDL_main */ +static int +main_getcmdline() +{ + char **argv = 0; + int argc; + char *cmdline = NULL; + int retval = 0; + int cmdalloc = 0; + const TCHAR *text = GetCommandLine(); + const TCHAR *ptr; + int argc_guess = 2; /* space for NULL and initial argument. */ + int rc; + + /* make a rough guess of command line arguments. Overestimates if there + are quoted things. */ + for (ptr = text; *ptr; ptr++) { + if ((*ptr == ' ') || (*ptr == '\t')) { + argc_guess++; + } + } + +#if UNICODE + rc = WideCharToMultiByte(CP_UTF8, 0, text, -1, NULL, 0, NULL, NULL); + if (rc > 0) { + cmdalloc = rc + (sizeof (char *) * argc_guess); + argv = (char **) VirtualAlloc(NULL, cmdalloc, MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE); + if (argv) { + int rc2; + cmdline = (char *) (argv + argc_guess); + rc2 = WideCharToMultiByte(CP_UTF8, 0, text, -1, cmdline, rc, NULL, NULL); + SDL_assert(rc2 == rc); + } + } +#else + /* !!! FIXME: are these in the system codepage? We need to convert to UTF-8. */ + rc = ((int) SDL_strlen(text)) + 1; + cmdalloc = rc + (sizeof (char *) * argc_guess); + argv = (char **) VirtualAlloc(NULL, cmdalloc, MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE); + if (argv) { + cmdline = (char *) (argv + argc_guess); + SDL_strcpy(cmdline, text); + } +#endif + if (cmdline == NULL) { + return OutOfMemory(); + } + + /* Parse it into argv and argc */ + SDL_assert(ParseCommandLine(cmdline, NULL) <= argc_guess); + argc = ParseCommandLine(cmdline, argv); + + SDL_SetMainReady(); + + /* Run the application main() code */ + retval = SDL_main(argc, argv); + + VirtualFree(argv, cmdalloc, MEM_DECOMMIT); + VirtualFree(argv, 0, MEM_RELEASE); + + return retval; +} + +/* This is where execution begins [console apps, ansi] */ +int +console_ansi_main(int argc, char *argv[]) +{ + return main_getcmdline(); +} + + +#if UNICODE +/* This is where execution begins [console apps, unicode] */ +int +console_wmain(int argc, wchar_t *wargv[], wchar_t *wenvp) +{ + return main_getcmdline(); +} +#endif + +/* This is where execution begins [windowed apps] */ +int WINAPI +WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR szCmdLine, int sw) +{ + return main_getcmdline(); +} + +#endif /* __WIN32__ */ + +/* vi: set ts=4 sw=4 expandtab: */ |