Directory restructuring to make it easier to version projects that don't build zdoom.exe.

SVN r4 (trunk)

src/sdl/i_main.cpp

@@ -0,0 +1,198 @@
+// Emacs style mode select   -*- C++ -*-
+//-----------------------------------------------------------------------------
+//
+// $Id: i_main.c,v 1.8 1998/05/15 00:34:03 killough Exp $
+//
+// Copyright (C) 1993-1996 by id Software, Inc.
+//
+// This source is available for distribution and/or modification
+// only under the terms of the DOOM Source Code License as
+// published by id Software. All rights reserved.
+//
+// The source is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
+// for more details.
+//
+//
+// DESCRIPTION:
+//      Main program, simply calls D_DoomMain high level loop.
+//
+//-----------------------------------------------------------------------------
+
+#include <SDL/SDL.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <new>
+#include <sys/param.h>
+
+#include "doomerrors.h"
+#include "m_argv.h"
+#include "d_main.h"
+#include "i_system.h"
+#include "i_video.h"
+#include "c_console.h"
+#include "errors.h"
+#include "version.h"
+#include "w_wad.h"
+
+DArgs Args;
+
+#define MAX_TERMS	16
+void (STACK_ARGS *TermFuncs[MAX_TERMS]) ();
+const char *TermNames[MAX_TERMS];
+static int NumTerms;
+
+void addterm (void (STACK_ARGS *func) (), const char *name)
+{
+    if (NumTerms == MAX_TERMS)
+	{
+		func ();
+		I_FatalError (
+			"Too many exit functions registered.\n"
+			"Increase MAX_TERMS in i_main.cpp");
+	}
+	TermNames[NumTerms] = name;
+    TermFuncs[NumTerms++] = func;
+}
+
+void popterm ()
+{
+	if (NumTerms)
+		NumTerms--;
+}
+
+void STACK_ARGS call_terms ()
+{
+    while (NumTerms > 0)
+	{
+//		printf ("term %d - %s\n", NumTerms, TermNames[NumTerms-1]);
+		TermFuncs[--NumTerms] ();
+	}
+}
+
+static void STACK_ARGS NewFailure ()
+{
+    I_FatalError ("Failed to allocate memory from system heap");
+}
+
+extern "C" int cc_install_handlers(int, int*, const char*, int(*)(char*, char*));
+static int DoomSpecificInfo (char *buffer, char *end)
+{
+	const char *arg;
+	int size = end-buffer;
+	int i, p;
+
+	SDL_Quit();
+
+	p = 0;
+	p += snprintf (buffer+p, size-p, "ZDoom version " DOTVERSIONSTR " (" __DATE__ ")\n");
+	p += snprintf (buffer+p, size-p, "\nCommand line:");
+	for (i = 0; i < Args.NumArgs(); ++i)
+	{
+		p += snprintf (buffer+p, size-p, " %s", Args.GetArg(i));
+	}
+	p += snprintf (buffer+p, size-p, "\n");
+	
+	for (i = 0; (arg = Wads.GetWadName (i)) != NULL; ++i)
+	{
+		p += snprintf (buffer+p, size-p, "\nWad %d: %s", i, arg);
+	}
+
+	if (gamestate != GS_LEVEL && gamestate != GS_TITLELEVEL)
+	{
+		p += snprintf (buffer+p, size-p, "\n\nNot in a level.");
+	}
+	else
+	{
+		char name[9];
+
+		strncpy (name, level.mapname, 8);
+		name[8] = 0;
+		p += snprintf (buffer+p, size-p, "\n\nCurrent map: %s", name);
+
+		if (!viewactive)
+		{
+			buffer += snprintf (buffer+p, size-p, "\n\nView not active.");
+		}
+		else
+		{
+			p += snprintf (buffer+p, size-p, "\n\nviewx = %d", (int)viewx);
+			p += snprintf (buffer+p, size-p, "\nviewy = %d", (int)viewy);
+			p += snprintf (buffer+p, size-p, "\nviewz = %d", (int)viewz);
+			p += snprintf (buffer+p, size-p, "\nviewangle = %x", (unsigned int)viewangle);
+		}
+	}
+	buffer[p++] = '\n';
+	buffer[p++] = '\0';
+
+	return p;
+}
+
+int main (int argc, char **argv)
+{
+	{
+		int s[4] = { SIGSEGV, SIGILL, SIGFPE, SIGBUS };
+		cc_install_handlers(4, s, "zdoom-crash.log", DoomSpecificInfo);
+	}
+
+	seteuid (getuid ());
+    std::set_new_handler (NewFailure);
+
+	if (SDL_Init (SDL_INIT_VIDEO|SDL_INIT_TIMER|SDL_INIT_NOPARACHUTE) == -1)
+	{
+		fprintf (stderr, "Could not initialize SDL:\n%s\n", SDL_GetError());
+		return -1;
+	}
+	atterm (SDL_Quit);
+
+	SDL_WM_SetCaption ("ZDOOM " DOTVERSIONSTR " (" __DATE__ ")", NULL);
+	
+    try
+    {
+		Args.SetArgs (argc, argv);
+
+		/*
+		  killough 1/98:
+
+		  This fixes some problems with exit handling
+		  during abnormal situations.
+
+		  The old code called I_Quit() to end program,
+		  while now I_Quit() is installed as an exit
+		  handler and exit() is called to exit, either
+		  normally or abnormally. Seg faults are caught
+		  and the error handler is used, to prevent
+		  being left in graphics mode or having very
+		  loud SFX noise because the sound card is
+		  left in an unstable state.
+		*/
+
+		atexit (call_terms);
+		atterm (I_Quit);
+
+		if (realpath (argv[0], progdir) == NULL)
+			strcpy (progdir, argv[0]);
+		char *slash = strrchr (progdir, '/');
+		if (slash)
+			*(slash + 1) = '\0';
+		else
+			progdir[0] = '.', progdir[1] = '/', progdir[2] = '\0';
+
+		C_InitConsole (80*8, 25*8, false);
+		D_DoomMain ();
+    }
+    catch (class CDoomError &error)
+    {
+		if (error.GetMessage ())
+			fprintf (stderr, "%s\n", error.GetMessage ());
+		exit (-1);
+    }
+    catch (...)
+    {
+		call_terms ();
+		throw;
+    }
+    return 0;
+}