Wolfenstein 3-D!

This is a port of Wolf4SDL, which is derived from the original id
software source release. The port runs on top of the SDL plugin
runtime and is loaded as an overlay.

Licensing of the game code is not an issue, as discussed below
(essentially, the Debian project treats Wolf4SDL as GPLv2, with an
email from John Carmack backing it up):

  http://forums.rockbox.org/index.php?topic=52872

Included is a copy of MAME's Yamaha OPL sound chip emulator
(fmopl_gpl.c).  This file was not part of the original Wolf4SDL source
(which includes a non-GPL'd version), but was rather rebased from from
a later MAME source which had been relicensed to GPLv2.

Change-Id: I64c2ba035e0be7e2f49252f40640641416613439

1 files changed, 378 insertions, 0 deletions

diff --git a/apps/plugins/sdl/progs/wolf3d/sdl_winmain.c b/apps/plugins/sdl/progs/wolf3d/sdl_winmain.c
new file mode 100644
index 0000000000..366616d5ff
--- /dev/null
+++ b/apps/plugins/sdl/progs/wolf3d/sdl_winmain.c
@@ -0,0 +1,378 @@
+#ifdef _WIN32
+
+/*
+    SDL_main.c, placed in the public domain by Sam Lantinga  4/13/98
+
+    Modified to write stdout/stderr to a message box at shutdown by Ripper  2007-12-27
+
+    The WinMain function -- calls your program's main() function
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+#ifdef _WIN32_WCE
+# define DIR_SEPERATOR TEXT("\\")
+# undef _getcwd
+# define _getcwd(str,len)	wcscpy(str,TEXT(""))
+# define setbuf(f,b)
+# define setvbuf(w,x,y,z)
+# define fopen		_wfopen
+# define freopen	_wfreopen
+# define remove(x)	DeleteFile(x)
+#else
+# define DIR_SEPERATOR TEXT("/")
+# include <direct.h>
+#endif
+
+/* Include the SDL main definition header */
+#include "SDL.h"
+#include "SDL_main.h"
+
+#ifdef main
+# ifndef _WIN32_WCE_EMULATION
+#  undef main
+# endif /* _WIN32_WCE_EMULATION */
+#endif /* main */
+
+/* The standard output files */
+#define STDOUT_FILE	TEXT("stdout.txt")
+#define STDERR_FILE	TEXT("stderr.txt")
+
+#ifndef NO_STDIO_REDIRECT
+# 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
+#endif
+
+#if defined(_WIN32_WCE) && _WIN32_WCE < 300
+/* seems to be undefined in Win CE although in online help */
+#define isspace(a) (((CHAR)a == ' ') || ((CHAR)a == '\t'))
+#endif /* _WIN32_WCE < 300 */
+
+/* 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;
+}
+
+/* SDL_Quit() shouldn't be used with atexit() directly because
+   calling conventions may differ... */
+static void cleanup(void)
+{
+	SDL_Quit();
+}
+
+/* Remove the output files if there was no output written */
+static void cleanup_output(void)
+{
+#if 1
+#ifndef NO_STDIO_REDIRECT
+	FILE *file;
+#endif
+#endif
+
+	/* Flush the output in case anything is queued */
+	fclose(stdout);
+	fclose(stderr);
+
+#if 1
+#ifndef NO_STDIO_REDIRECT
+	/* See if the files have any output in them */
+	if ( stdoutPath[0] ) {
+		file = fopen(stdoutPath, TEXT("r"));
+		if ( file ) {
+            char buf[16384];
+            size_t readbytes = fread(buf, 1, 16383, file);
+            fclose(file);
+
+            if(readbytes != 0)
+            {
+                buf[readbytes] = 0;     // cut after last byte (<=16383)
+                MessageBox(NULL, buf, "Wolf4SDL", MB_OK);
+            }
+            else
+                remove(stdoutPath);     // remove empty file
+		}
+	}
+	if ( stderrPath[0] ) {
+		file = fopen(stderrPath, TEXT("rb"));
+		if ( file ) {
+            char buf[16384];
+            size_t readbytes = fread(buf, 1, 16383, file);
+            fclose(file);
+
+            if(readbytes != 0)
+            {
+                buf[readbytes] = 0;     // cut after last byte (<=16383)
+                MessageBox(NULL, buf, "Wolf4SDL", MB_OK);
+            }
+            else
+                remove(stderrPath);     // remove empty file
+		}
+	}
+#endif
+#endif
+}
+
+//#if defined(_MSC_VER) && !defined(_WIN32_WCE)
+///* The VC++ compiler needs main defined */
+//#define console_main main
+//#endif
+
+/* This is where execution begins [console apps] */
+int console_main(int argc, char *argv[])
+{
+	size_t n;
+	char *bufp, *appname;
+	int status;
+
+	/* Get the class name from argv[0] */
+	appname = argv[0];
+	if ( (bufp=SDL_strrchr(argv[0], '\\')) != NULL ) {
+		appname = bufp+1;
+	} else
+	if ( (bufp=SDL_strrchr(argv[0], '/')) != NULL ) {
+		appname = bufp+1;
+	}
+
+	if ( (bufp=SDL_strrchr(appname, '.')) == NULL )
+		n = SDL_strlen(appname);
+	else
+		n = (bufp-appname);
+
+	bufp = SDL_stack_alloc(char, n+1);
+	if ( bufp == NULL ) {
+		return OutOfMemory();
+	}
+	SDL_strlcpy(bufp, appname, n+1);
+	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(cleanup);
+
+	/* 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));
+
+	/* Run the application main() code */
+	status = SDL_main(argc, argv);
+
+	/* Exit cleanly, calling atexit() functions */
+	exit(status);
+
+	/* Hush little compiler, don't you cry... */
+	return 0;
+}
+
+/* This is where execution begins [windowed apps] */
+#ifdef _WIN32_WCE
+int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPWSTR szCmdLine, int sw)
+#else
+int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR szCmdLine, int sw)
+#endif
+{
+	HINSTANCE handle;
+	char **argv;
+	int argc;
+	char *cmdline;
+#ifdef _WIN32_WCE
+	wchar_t *bufp;
+	int nLen;
+#else
+	char *bufp;
+	size_t nLen;
+#endif
+#ifndef NO_STDIO_REDIRECT
+	DWORD pathlen;
+#ifdef _WIN32_WCE
+	wchar_t path[MAX_PATH];
+#else
+	char path[MAX_PATH];
+#endif
+	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.
+	 */
+	handle = LoadLibrary(TEXT("DDRAW.DLL"));
+	if ( handle != NULL ) {
+		FreeLibrary(handle);
+	}
+
+#ifndef NO_STDIO_REDIRECT
+	pathlen = GetModuleFileName(NULL, path, SDL_arraysize(path));
+	while ( pathlen > 0 && path[pathlen] != '\\' ) {
+		--pathlen;
+	}
+	path[pathlen] = '\0';
+
+#ifdef _WIN32_WCE
+	wcsncpy( stdoutPath, path, SDL_arraysize(stdoutPath) );
+	wcsncat( stdoutPath, DIR_SEPERATOR STDOUT_FILE, SDL_arraysize(stdoutPath) );
+#else
+	SDL_strlcpy( stdoutPath, path, SDL_arraysize(stdoutPath) );
+	SDL_strlcat( stdoutPath, DIR_SEPERATOR STDOUT_FILE, SDL_arraysize(stdoutPath) );
+#endif
+
+	/* Redirect standard input and standard output */
+	newfp = freopen(stdoutPath, TEXT("w"), stdout);
+
+#ifndef _WIN32_WCE
+	if ( newfp == NULL ) {	/* This happens on NT */
+#if !defined(stdout)
+		stdout = fopen(stdoutPath, TEXT("w"));
+#else
+		newfp = fopen(stdoutPath, TEXT("w"));
+		if ( newfp ) {
+			*stdout = *newfp;
+		}
+#endif
+	}
+#endif /* _WIN32_WCE */
+
+#ifdef _WIN32_WCE
+	wcsncpy( stderrPath, path, SDL_arraysize(stdoutPath) );
+	wcsncat( stderrPath, DIR_SEPERATOR STDOUT_FILE, SDL_arraysize(stdoutPath) );
+#else
+	SDL_strlcpy( stderrPath, path, SDL_arraysize(stderrPath) );
+	SDL_strlcat( stderrPath, DIR_SEPERATOR STDERR_FILE, SDL_arraysize(stderrPath) );
+#endif
+
+	newfp = freopen(stderrPath, TEXT("w"), stderr);
+#ifndef _WIN32_WCE
+	if ( newfp == NULL ) {	/* This happens on NT */
+#if !defined(stderr)
+		stderr = fopen(stderrPath, TEXT("w"));
+#else
+		newfp = fopen(stderrPath, TEXT("w"));
+		if ( newfp ) {
+			*stderr = *newfp;
+		}
+#endif
+	}
+#endif /* _WIN32_WCE */
+
+	setvbuf(stdout, NULL, _IOLBF, BUFSIZ);	/* Line buffered */
+	setbuf(stderr, NULL);			/* No buffering */
+#endif /* !NO_STDIO_REDIRECT */
+
+#ifdef _WIN32_WCE
+	nLen = wcslen(szCmdLine)+128+1;
+	bufp = SDL_stack_alloc(wchar_t, nLen*2);
+	wcscpy (bufp, TEXT("\""));
+	GetModuleFileName(NULL, bufp+1, 128-3);
+	wcscpy (bufp+wcslen(bufp), TEXT("\" "));
+	wcsncpy(bufp+wcslen(bufp), szCmdLine,nLen-wcslen(bufp));
+	nLen = wcslen(bufp)+1;
+	cmdline = SDL_stack_alloc(char, nLen);
+	if ( cmdline == NULL ) {
+		return OutOfMemory();
+	}
+	WideCharToMultiByte(CP_ACP, 0, bufp, -1, cmdline, nLen, NULL, NULL);
+#else
+	/* Grab the command line */
+	bufp = GetCommandLine();
+	nLen = SDL_strlen(bufp)+1;
+	cmdline = SDL_stack_alloc(char, nLen);
+	if ( cmdline == NULL ) {
+		return OutOfMemory();
+	}
+	SDL_strlcpy(cmdline, bufp, nLen);
+#endif
+
+	/* Parse it into argv and argc */
+	argc = ParseCommandLine(cmdline, NULL);
+	argv = SDL_stack_alloc(char*, argc+1);
+	if ( argv == NULL ) {
+		return OutOfMemory();
+	}
+	ParseCommandLine(cmdline, argv);
+
+	/* Run the main program (after a little SDL initialization) */
+	console_main(argc, argv);
+
+	/* Hush little compiler, don't you cry... */
+	return 0;
+}
+
+#endif  // _WIN32