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/* 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 "gameDetector.h"
#include "config-file.h"
#include "gui/newgui.h"
#include "gui/launcher.h"
#include "gui/message.h"
GameDetector detector;
Config *g_config = 0;
NewGui *g_gui = 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[])
{
int result;
#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
// Read the config file
g_config = new Config(scummhome, "scummvm");
g_config->set("versioninfo", SCUMMVM_VERSION);
// Parse the command line information
result = detector.detectMain(argc, argv);
// Create the system object
OSystem *system = detector.createSystem();
// TODO - if detectMain() returns an error, fire up the launcher dialog
// TODO - implement the launcher dialog; also implement some sort of generic
// error dialog, to be used by the launcher if e.g. the game data can't
// be found.
if (result) {
system->quit();
return (-1);
}
// Set the window caption (for OSystems that support it)
OSystem::Property prop;
prop.caption = (char *)detector.getGameName();
system->property(OSystem::PROP_SET_WINDOW_CAPTION, &prop);
// Create the GUI manager
// TODO - move this up for the launcher dialog?
g_gui = new NewGui(system);
#if 0
// FIXME - we need to call init_size() here so that we can display for example
// the launcher dialog. But the Engine object will also call it again (possibly
// with a different widht/height!9 However, this method is not for all OSystem
// implementations reentrant (it is so now for the SDL backend). Thus we need
// to fix all backends to support it, if they don't already.
system->init_size(320, 200);
// FIXME - mouse cursors are currently always set via 8 bit data.
// Thus for now we need to setup a dummy palette. On the long run, we might
// want to add a set_mouse_cursor_overlay() method to OSystem, which would serve
// two purposes:
// 1) allow for 16 bit mouse cursors in overlay mode
// 2) no need to backup & restore the mouse cursor before/after the overlay is shown
const byte dummy_palette[] = {
0, 0, 0, 0,
0, 0, 171, 0,
0, 171, 0, 0,
0, 171, 171, 0,
171, 0, 0, 0,
171, 0, 171, 0,
171, 87, 0, 0,
171, 171, 171, 0,
87, 87, 87, 0,
87, 87, 255, 0,
87, 255, 87, 0,
87, 255, 255, 0,
255, 87, 87, 0,
255, 87, 255, 0,
255, 255, 87, 0,
255, 255, 255, 0,
};
system->set_palette(dummy_palette, 0, 16);
#if 1
extern OSystem *g_system;
g_system = system;
Dialog *dlg = new LauncherDialog(g_gui);
#else
const char *message = "This dialog is shown before the\n"
"Engine obejct is even created.\n"
"Wow! Ain't we cool?\n";
Dialog *dlg = new MessageDialog(g_gui, message);
#endif
dlg->open();
g_gui->runLoop();
delete dlg;
#endif
// Create the game engine
Engine *engine = Engine::createFromDetector(&detector, system);
// Run the game engine
engine->go();
// Free up memory
delete engine;
delete g_gui;
delete g_config;
// ...and quit (the return 0 should never be reached)
system->quit();
return 0;
}
void *operator new(size_t size) {
return calloc(size, 1);
}
void operator delete(void *ptr) {
free(ptr);
}
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