Initial revision

svn-id: r4785

1 files changed, 150 insertions, 0 deletions

diff --git a/common/main.cpp b/common/main.cpp
new file mode 100644
index 0000000000..43fd2e4563
--- /dev/null
+++ b/common/main.cpp
@@ -0,0 +1,150 @@
+/* ScummVM - Scumm Interpreter
+ * Copyright (C) 2001  Ludvig Strigeus
+ * Copyright (C) 2001/2002 The ScummVM project
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * $Header$
+ *
+ */
+
+#include "stdafx.h"
+#include "engine.h"
+#include "scumm.h"
+#include "sound/mididrv.h"
+#include "gameDetector.h"
+#include "simon/simon.h"
+#include "config-file.h"
+
+GameDetector detector;
+
+Config *scummcfg = 0;
+
+
+#if defined(QTOPIA)
+// FIXME - why exactly is this needed?
+extern "C" int main(int argc, char *argv[]);
+#endif
+
+#if defined(MACOSX) || defined(QTOPIA)
+#include <SDL.h>
+#elif !defined(__MORPHOS__)
+#undef main
+#endif
+
+#if defined(UNIX)
+#include <sys/param.h>
+#ifndef MAXPATHLEN
+#define MAXPATHLEN 256
+#endif
+#define DEFAULT_CONFIG_FILE ".scummvmrc"
+#else
+#define DEFAULT_CONFIG_FILE "scummvm.ini"
+#endif
+
+#if defined(UNIX)
+#include <signal.h>
+
+#ifndef SCUMM_NEED_ALIGNMENT
+static void handle_errors(int sig_num) {
+	error("Your system does not support unaligned memory accesses. Please rebuild with SCUMM_NEED_ALIGNMENT ");
+}
+#endif
+
+/* This function is here to test if the endianness / alignement compiled it is matching
+   with the one at run-time. */
+static void do_memory_test(void) {
+	unsigned char test[8] = { 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88 };
+	unsigned int value;
+	/* First test endianness */
+#ifdef SCUMM_LITTLE_ENDIAN
+	if (*((int *) test) != 0x44332211) {
+		error("Compiled as LITTLE_ENDIAN on a big endian system. Please rebuild ");
+	}
+	value = 0x55443322;
+#else
+	if (*((int *) test) != 0x11223344) {
+		error("Compiled as BIG_ENDIAN on a little endian system. Please rebuild ");
+	}
+	value = 0x22334455;
+#endif
+	/* Then check if one really supports unaligned memory accesses */
+#ifndef SCUMM_NEED_ALIGNMENT
+	signal(SIGBUS, handle_errors);
+	signal(SIGABRT, handle_errors);
+	signal(SIGSEGV, handle_errors);
+	if (*((unsigned int *) ((char *) test + 1)) != value) {
+		error("Your system does not support unaligned memory accesses. Please rebuild with SCUMM_NEED_ALIGNMENT ");
+	}
+	signal(SIGBUS, SIG_DFL);
+	signal(SIGABRT, SIG_DFL);
+	signal(SIGSEGV, SIG_DFL);
+#endif
+}
+
+#endif
+
+int main(int argc, char *argv[])
+{
+#ifdef __DC__
+	extern void dc_init_hardware();
+	dc_init_hardware();
+#endif
+
+#if defined(UNIX)
+	/* On Unix, do a quick endian / alignement check before starting */
+	do_memory_test();
+
+	char scummhome[MAXPATHLEN];
+	if(getenv("HOME") != NULL)
+		sprintf(scummhome,"%s/%s", getenv("HOME"), DEFAULT_CONFIG_FILE);
+	else strcpy(scummhome,DEFAULT_CONFIG_FILE);
+#else
+    char scummhome[255];
+	#if defined (WIN32) && !defined(_WIN32_WCE)
+		GetWindowsDirectory(scummhome, 255);
+		strcat(scummhome, "\\");
+		strcat(scummhome, DEFAULT_CONFIG_FILE);
+	#else	
+		strcpy(scummhome,DEFAULT_CONFIG_FILE);
+	#endif
+#endif
+
+	scummcfg = new Config(scummhome, "scummvm");
+	scummcfg->set("versioninfo", SCUMMVM_VERSION);
+	if (detector.detectMain(argc, argv))
+		return (-1);
+
+	OSystem *system = detector.createSystem();
+
+	{
+		char *s = detector.getGameName();
+		OSystem::Property prop;
+
+		prop.caption = s;
+		system->property(OSystem::PROP_SET_WINDOW_CAPTION, &prop);
+		free(s);
+	}
+
+	// Create the game engine
+	Engine *engine = Engine::createFromDetector(&detector, system);
+
+	// Run the game engine
+	engine->go();
+	
+	delete scummcfg;
+	
+	return 0;
+}