mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-30 14:14:43 +00:00
158 lines
4.1 KiB
C++
158 lines
4.1 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2001 Ludvig Strigeus
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* Copyright (C) 2001/2002 The ScummVM project
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Header$
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*
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*/
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#include "stdafx.h"
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#include "engine.h"
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#include "scumm.h"
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#include "sound/mididrv.h"
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#include "gameDetector.h"
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#include "simon/simon.h"
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#include "config-file.h"
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GameDetector detector;
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Config *scummcfg = 0;
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#if defined(QTOPIA)
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// FIXME - why exactly is this needed?
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extern "C" int main(int argc, char *argv[]);
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#endif
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#if defined(MACOSX) || defined(QTOPIA)
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#include <SDL.h>
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#elif !defined(__MORPHOS__)
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#undef main
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#endif
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#if defined(UNIX)
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#include <sys/param.h>
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#ifndef MAXPATHLEN
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#define MAXPATHLEN 256
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#endif
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#define DEFAULT_CONFIG_FILE ".scummvmrc"
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#else
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#define DEFAULT_CONFIG_FILE "scummvm.ini"
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#endif
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#if defined(UNIX)
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#include <signal.h>
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#ifndef SCUMM_NEED_ALIGNMENT
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static void handle_errors(int sig_num) {
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error("Your system does not support unaligned memory accesses. Please rebuild with SCUMM_NEED_ALIGNMENT ");
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}
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#endif
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/* This function is here to test if the endianness / alignement compiled it is matching
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with the one at run-time. */
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static void do_memory_test(void) {
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unsigned char test[8] = { 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88 };
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unsigned int value;
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/* First test endianness */
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#ifdef SCUMM_LITTLE_ENDIAN
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if (*((int *) test) != 0x44332211) {
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error("Compiled as LITTLE_ENDIAN on a big endian system. Please rebuild ");
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}
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value = 0x55443322;
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#else
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if (*((int *) test) != 0x11223344) {
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error("Compiled as BIG_ENDIAN on a little endian system. Please rebuild ");
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}
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value = 0x22334455;
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#endif
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/* Then check if one really supports unaligned memory accesses */
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#ifndef SCUMM_NEED_ALIGNMENT
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signal(SIGBUS, handle_errors);
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signal(SIGABRT, handle_errors);
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signal(SIGSEGV, handle_errors);
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if (*((unsigned int *) ((char *) test + 1)) != value) {
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error("Your system does not support unaligned memory accesses. Please rebuild with SCUMM_NEED_ALIGNMENT ");
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}
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signal(SIGBUS, SIG_DFL);
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signal(SIGABRT, SIG_DFL);
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signal(SIGSEGV, SIG_DFL);
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#endif
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}
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#endif
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int main(int argc, char *argv[])
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{
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#ifdef __DC__
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extern void dc_init_hardware();
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dc_init_hardware();
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#endif
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#if defined(UNIX)
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char scummhome[MAXPATHLEN];
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if(getenv("HOME") != NULL)
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sprintf(scummhome,"%s/%s", getenv("HOME"), DEFAULT_CONFIG_FILE);
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else strcpy(scummhome,DEFAULT_CONFIG_FILE);
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scummcfg = new Config(scummhome, "scummvm");
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/* On Unix, do a quick endian / alignement check before starting */
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do_memory_test();
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#else
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char scummhome[255];
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#if defined (WIN32) && !defined(_WIN32_WCE)
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GetWindowsDirectory(scummhome, 255);
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strcat(scummhome, "\\");
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strcat(scummhome, DEFAULT_CONFIG_FILE);
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#else
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strcpy(scummhome,DEFAULT_CONFIG_FILE);
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#endif
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scummcfg = new Config(scummhome, "scummvm");
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#endif
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scummcfg->set("versioninfo", SCUMMVM_VERSION);
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if (detector.detectMain(argc, argv))
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return (-1);
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OSystem *system = detector.createSystem();
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Engine *engine;
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{
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char *s = detector.getGameName();
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OSystem::Property prop;
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prop.caption = s;
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system->property(OSystem::PROP_SET_WINDOW_CAPTION, &prop);
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free(s);
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}
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/* Simon the Sorcerer? */
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if (detector._gameId >= GID_SIMON_FIRST && detector._gameId <= GID_SIMON_LAST) {
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/* Simon the Sorcerer initialization */
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detector._gameId -= GID_SIMON_FIRST;
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engine = SimonState::createFromDetector(&detector, system);
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} else {
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engine = Scumm::createFromDetector(&detector, system);
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}
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engine->go();
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delete scummcfg;
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return 0;
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}
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