work-around VS2015 stdio issue for SDL1.2 builds: add SDL_win32_main.c

to the source tree, build it everytime with MSVC in SDL1.2 builds, and
remove SDLmain.lib. (see: http://stackoverflow.com/questions/30412951 )

git-svn-id: svn://svn.code.sf.net/p/quakespasm/code/trunk/quakespasm@1376 af15c1b1-3010-417e-b628-4374ebc0bcbd

Windows/SDL/SDL_win32_main.c

@@ -0,0 +1,402 @@
+/*
+    SDL_main.c, placed in the public domain by Sam Lantinga  4/13/98
+
+    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")
+
+/* Set a variable to tell if the stdio redirect has been enabled. */
+static int stdioRedirectEnabled = 0;
+
+#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
+
+#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 */
+
+static void UnEscapeQuotes( char *arg )
+{
+	char *last = NULL;
+
+	while( *arg ) {
+		if( *arg == '"' && *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 ( isspace(*bufp) ) {
+			++bufp;
+		}
+		/* Skip over argument */
+		if ( *bufp == '"' ) {
+			++bufp;
+			if ( *bufp ) {
+				if ( argv ) {
+					argv[argc] = bufp;
+				}
+				++argc;
+			}
+			/* Skip over word */
+			while ( *bufp && ( *bufp != '"' || (lastp && *lastp == '\\') ) ) {
+				lastp = 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;
+		}
+
+		/* Strip out \ from \" sequences */
+		if( argv && last_argc != argc ) {
+			UnEscapeQuotes( argv[last_argc] );	
+		}
+		last_argc = argc;	
+	}
+	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) {
+	FILE *file;
+	int empty;
+
+	/* Flush the output in case anything is queued */
+	fclose(stdout);
+	fclose(stderr);
+
+	/* Without redirection we're done */
+	if (!stdioRedirectEnabled) {
+		return;
+	}
+
+	/* See if the files have any output in them */
+	if ( stdoutPath[0] ) {
+		file = fopen(stdoutPath, TEXT("rb"));
+		if ( file ) {
+			empty = (fgetc(file) == EOF) ? 1 : 0;
+			fclose(file);
+			if ( empty ) {
+				remove(stdoutPath);
+			}
+		}
+	}
+	if ( stderrPath[0] ) {
+		file = fopen(stderrPath, TEXT("rb"));
+		if ( file ) {
+			empty = (fgetc(file) == EOF) ? 1 : 0;
+			fclose(file);
+			if ( empty ) {
+				remove(stderrPath);
+			}
+		}
+	}
+}
+
+/* Redirect the output (stdout and stderr) to a file */
+static void redirect_output(void)
+{
+	DWORD pathlen;
+#ifdef _WIN32_WCE
+	wchar_t path[MAX_PATH];
+#else
+	char path[MAX_PATH];
+#endif
+	FILE *newfp;
+
+	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 */
+	stdioRedirectEnabled = 1;
+}
+
+#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
+{
+	HMODULE handle;
+	char **argv;
+	int argc;
+	char *cmdline;
+	char *env_str;
+#ifdef _WIN32_WCE
+	wchar_t *bufp;
+	int nLen;
+#else
+	char *bufp;
+	size_t nLen;
+#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);
+	}
+
+	/* Check for stdio redirect settings and do the redirection */
+	if ((env_str = SDL_getenv("SDL_STDIO_REDIRECT"))) {
+		if (SDL_atoi(env_str)) {
+			redirect_output();
+		}
+	}
+#ifndef NO_STDIO_REDIRECT
+	else {
+		redirect_output();
+	}
+#endif
+
+#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;
+}

Windows/VisualStudio/quakespasm.vcproj

@@ -61,7 +61,7 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="libvorbisfile.lib libvorbis.lib libopusfile.lib libopus.lib libFLAC.lib libogg.lib libmad.lib libmikmod.lib wsock32.lib opengl32.lib winmm.lib SDL.lib SDLmain.lib"
+				AdditionalDependencies="libvorbisfile.lib libvorbis.lib libopusfile.lib libopus.lib libFLAC.lib libogg.lib libmad.lib libmikmod.lib wsock32.lib opengl32.lib winmm.lib SDL.lib"
 				LinkIncremental="2"
 				AdditionalLibraryDirectories="..\codecs\x86;..\SDL\lib"
 				IgnoreDefaultLibraryNames="msvcrt.lib"
@@ -136,7 +136,7 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="libvorbisfile.lib libvorbis.lib libopusfile.lib libopus.lib libFLAC.lib libogg.lib libmad.lib libmikmod.lib wsock32.lib opengl32.lib winmm.lib SDL.lib SDLmain.lib"
+				AdditionalDependencies="libvorbisfile.lib libvorbis.lib libopusfile.lib libopus.lib libFLAC.lib libogg.lib libmad.lib libmikmod.lib wsock32.lib opengl32.lib winmm.lib SDL.lib"
 				LinkIncremental="1"
 				AdditionalLibraryDirectories="..\codecs\x86;..\SDL\lib"
 				GenerateDebugInformation="true"
@@ -212,7 +212,7 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="libvorbisfile.lib libvorbis.lib libopusfile.lib libopus.lib libFLAC.lib libogg.lib libmad.lib libmikmod.lib ws2_32.lib opengl32.lib winmm.lib SDL.lib SDLmain.lib"
+				AdditionalDependencies="libvorbisfile.lib libvorbis.lib libopusfile.lib libopus.lib libFLAC.lib libogg.lib libmad.lib libmikmod.lib ws2_32.lib opengl32.lib winmm.lib SDL.lib"
 				LinkIncremental="2"
 				AdditionalLibraryDirectories="..\codecs\x64;..\SDL\lib64"
 				IgnoreDefaultLibraryNames="msvcrt.lib"
@@ -288,7 +288,7 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="libvorbisfile.lib libvorbis.lib libopusfile.lib libopus.lib libFLAC.lib libogg.lib libmad.lib libmikmod.lib ws2_32.lib opengl32.lib winmm.lib SDL.lib SDLmain.lib"
+				AdditionalDependencies="libvorbisfile.lib libvorbis.lib libopusfile.lib libopus.lib libFLAC.lib libogg.lib libmad.lib libmikmod.lib ws2_32.lib opengl32.lib winmm.lib SDL.lib"
 				LinkIncremental="1"
 				AdditionalLibraryDirectories="..\codecs\x64;..\SDL\lib64"
 				GenerateDebugInformation="true"
@@ -633,6 +633,10 @@
 				RelativePath="..\..\Quake\zone.c"
 				>
 			</File>
+			<File
+				RelativePath="..\SDL\SDL_win32_main.c"
+				>
+			</File>
 		</Filter>
 		<Filter
 			Name="Header Files"