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scummvm/base/gameDetector.cpp

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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
* Copyright (C) 2001-2006 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#include "common/stdafx.h"
#include "base/engine.h"
#include "base/gameDetector.h"
#include "base/plugins.h"
#include "base/version.h"
#include "common/config-manager.h"
#include "common/system.h"
#include "sound/mididrv.h"
#include "sound/mixer.h"
#ifdef UNIX
#include <errno.h>
#include <sys/stat.h>
#ifdef MACOSX
#define DEFAULT_SAVE_PATH "Documents/ScummVM Savegames"
#else
#define DEFAULT_SAVE_PATH ".scummvm"
#endif
#elif defined(__SYMBIAN32__)
#include <errno.h>
#include <sys/stat.h>
#define DEFAULT_SAVE_PATH "Savegames"
#endif
static const char USAGE_STRING[] =
"%s: %s\n"
"Usage: %s [OPTIONS]... [GAME]\n"
"\n"
"Try '%s --help' for more options.\n"
;
// DONT FIXME: DO NOT ORDER ALPHABETICALLY, THIS IS ORDERED BY IMPORTANCE/CATEGORY! :)
#if defined(PALMOS_MODE) || defined(__SYMBIAN32__) || defined(__GP32__)
static const char HELP_STRING[] = "NoUsageString"; // save more data segment space
#else
static const char HELP_STRING[] =
"ScummVM - Graphical Adventure Game Interpreter\n"
"Usage: %s [OPTIONS]... [GAME]\n"
" -v, --version Display ScummVM version information and exit\n"
" -h, --help Display a brief help text and exit\n"
" -z, --list-games Display list of supported games and exit\n"
" -t, --list-targets Display list of configured targets and exit\n"
"\n"
" -c, --config=CONFIG Use alternate configuration file\n"
" -p, --path=PATH Path to where the game is installed\n"
" -x, --save-slot[=NUM] Save game slot to load (default: autosave)\n"
" -f, --fullscreen Force full-screen mode\n"
" -F, --no-fullscreen Force windowed mode\n"
" -g, --gfx-mode=MODE Select graphics scaler (normal,2x,3x,2xsai,\n"
" super2xsai,supereagle,advmame2x,advmame3x,hq2x,\n"
" hq3x,tv2x,dotmatrix)\n"
" -e, --music-driver=MODE Select music driver (see README for details)\n"
" -q, --language=LANG Select language (en,de,fr,it,pt,es,jp,zh,kr,se,gb,\n"
" hb,ru,cz)\n"
" -m, --music-volume=NUM Set the music volume, 0-255 (default: 192)\n"
" -s, --sfx-volume=NUM Set the sfx volume, 0-255 (default: 192)\n"
" -r, --speech-volume=NUM Set the speech volume, 0-255 (default: 192)\n"
" --midi-gain=NUM Set the gain for MIDI playback, 0-1000 (default:\n"
" 100) (only supported by some MIDI drivers)\n"
" -n, --subtitles Enable subtitles (use with games that have voice)\n"
" -b, --boot-param=NUM Pass number to the boot script (boot param)\n"
" -d, --debuglevel=NUM Set debug verbosity level\n"
" --debugflags=FLAGS Enables engine specific debug flags\n"
" (separated by commas)\n"
" -u, --dump-scripts Enable script dumping if a directory called 'dumps'\n"
" exists in the current directory\n"
"\n"
" --cdrom=NUM CD drive to play CD audio from (default: 0 = first\n"
" drive)\n"
" --joystick[=NUM] Enable input with joystick (default: 0 = first\n"
" joystick)\n"
" --platform=WORD Specify platform of game (allowed values: 3do, acorn,\n"
" amiga, atari, c64, fmtowns, nes, mac, pc, segacd,\n"
" windows)\n"
" --savepath=PATH Path to where savegames are stored\n"
" --soundfont=FILE Select the SoundFont for MIDI playback (only\n"
" supported by some MIDI drivers)\n"
" --multi-midi Enable combination Adlib and native MIDI\n"
" --native-mt32 True Roland MT-32 (disable GM emulation)\n"
" --enable-gs Enable Roland GS mode for MIDI playback\n"
" --output-rate=RATE Select output sample rate in Hz (e.g. 22050)\n"
" --aspect-ratio Enable aspect ratio correction\n"
" --render-mode=MODE Enable additional render modes (cga, ega, hercGreen,\n"
" hercAmber, amiga)\n"
" --force-1x-overlay Make inner GUI 320x200\n"
"\n"
#if !defined(DISABLE_SKY) || !defined(DISABLE_QUEEN)
" --alt-intro Use alternative intro for CD versions of Beneath a\n"
" Steel Sky and Flight of the Amazon Queen\n"
#endif
" --copy-protection Enable copy protection in SCUMM games, when\n"
" ScummVM disables it by default.\n"
" --talkspeed=NUM Set talk speed for games (default: 60)\n"
#ifndef DISABLE_SCUMM
" --demo-mode Start demo mode of Maniac Mansion\n"
" --tempo=NUM Set music tempo (in percent, 50-200) for SCUMM games\n"
" (default: 100)\n"
#endif
"\n"
"The meaning of boolean long options can be inverted by prefixing them with\n"
"\"no-\", e.g. \"--no-aspect-ratio\".\n"
;
#endif
#if !(defined(PALMOS_ARM) || defined(PALMOS_DEBUG) || defined(__GP32__))
static Common::String s_appName("scummvm");
#else
static const char *s_appName = "scummvm";
#endif
static void usage(const char *s, ...) GCC_PRINTF(1, 2);
static void usage(const char *s, ...) {
char buf[STRINGBUFLEN];
va_list va;
va_start(va, s);
vsnprintf(buf, STRINGBUFLEN, s, va);
va_end(va);
#if !(defined(PALMOS_ARM) || defined(PALMOS_DEBUG) || defined(__GP32__))
printf(USAGE_STRING, s_appName.c_str(), buf, s_appName.c_str(), s_appName.c_str());
#endif
exit(1);
}
GameDetector::GameDetector() {
// Graphics
ConfMan.registerDefault("fullscreen", false);
ConfMan.registerDefault("aspect_ratio", false);
ConfMan.registerDefault("gfx_mode", "normal");
ConfMan.registerDefault("render_mode", "default");
#if defined(__SYMBIAN32__)
ConfMan.registerDefault("force_1x_overlay", true);
#else
ConfMan.registerDefault("force_1x_overlay", false);
#endif
// Sound & Music
ConfMan.registerDefault("music_volume", 192);
ConfMan.registerDefault("sfx_volume", 192);
ConfMan.registerDefault("speech_volume", 192);
ConfMan.registerDefault("multi_midi", false);
ConfMan.registerDefault("native_mt32", false);
ConfMan.registerDefault("enable_gs", false);
ConfMan.registerDefault("midi_gain", 100);
// ConfMan.registerDefault("music_driver", ???);
ConfMan.registerDefault("cdrom", 0);
// Game specific
ConfMan.registerDefault("path", "");
ConfMan.registerDefault("savepath", "");
// ConfMan.registerDefault("amiga", false);
ConfMan.registerDefault("platform", Common::kPlatformPC);
ConfMan.registerDefault("language", "en");
ConfMan.registerDefault("speech_mute", false);
ConfMan.registerDefault("sfx_mute", false);
ConfMan.registerDefault("subtitles", false);
ConfMan.registerDefault("boot_param", 0);
ConfMan.registerDefault("dump_scripts", false);
ConfMan.registerDefault("save_slot", -1);
ConfMan.registerDefault("autosave_period", 5 * 60); // By default, trigger autosave every 5 minutes
#if !defined(DISABLE_SCUMM) || !defined(DISABLE_SWORD2)
ConfMan.registerDefault("object_labels", true);
#endif
ConfMan.registerDefault("copy_protection", false);
ConfMan.registerDefault("talkspeed", 60);
#ifndef DISABLE_SCUMM
ConfMan.registerDefault("demo_mode", false);
ConfMan.registerDefault("tempo", 0);
#endif
#if !defined(DISABLE_SKY) || !defined(DISABLE_QUEEN)
ConfMan.registerDefault("alt_intro", false);
#endif
// Miscellaneous
ConfMan.registerDefault("joystick_num", -1);
ConfMan.registerDefault("confirm_exit", false);
ConfMan.registerDefault("disable_sdl_parachute", false);
#ifdef USE_ALSA
ConfMan.registerDefault("alsa_port", "65:0");
#endif
#ifdef DEFAULT_SAVE_PATH
char savePath[MAXPATHLEN];
#ifdef UNIX
struct stat sb;
const char *home = getenv("HOME");
if (home && *home && strlen(home) < MAXPATHLEN) {
snprintf(savePath, MAXPATHLEN, "%s/%s", home, DEFAULT_SAVE_PATH);
if (stat(savePath, &sb) == -1) {
/* create the dir if it does not exist */
if (errno == ENOENT) {
if (mkdir(savePath, 0755) != 0) {
perror("mkdir");
exit(1);
}
}
}
/* check that the dir is there */
if (stat(savePath, &sb) == 0) {
ConfMan.registerDefault("savepath", savePath);
}
}
#elif defined(__SYMBIAN32__)
strcpy(savePath, Symbian::GetExecutablePath());
strcat(savePath, DEFAULT_SAVE_PATH);
struct stat sb;
if (stat(savePath, &sb) == -1)
if (errno == ENOENT)// create the dir if it does not exist
if (mkdir(savePath, 0755) != 0)
error("mkdir for '%s' failed!", savePath);
ConfMan.registerDefault("savepath", savePath); // this should be enough...
#endif
#endif // #ifdef DEFAULT_SAVE_PATH
}
GameDescriptor GameDetector::findGame(const String &gameName, const Plugin **plugin) {
// Find the GameDescriptor for this target
const PluginList &plugins = PluginManager::instance().getPlugins();
GameDescriptor result;
if (plugin)
*plugin = 0;
PluginList::const_iterator iter = plugins.begin();
for (iter = plugins.begin(); iter != plugins.end(); ++iter) {
result = (*iter)->findGame(gameName.c_str());
if (!result.gameid.empty()) {
if (plugin)
*plugin = *iter;
break;
}
}
return result;
}
//
// Various macros used by the command line parser.
//
// Use this for options which have an *optional* value
#define DO_OPTION_OPT(shortCmd, longCmd, defaultVal) \
if (isLongCmd ? (!memcmp(s+2, longCmd"=", sizeof(longCmd"=") - 1)) : (tolower(s[1]) == shortCmd)) { \
s += 2; \
if (isLongCmd) \
s += sizeof(longCmd"=") - 1; \
const char *option = s; \
if (*s == '\0') { option = s2; i++; } \
if (!option) option = defaultVal; \
if (option) settings[longCmd] = option;
// Use this for options which have a required (string) value
#define DO_OPTION(shortCmd, longCmd) \
DO_OPTION_OPT(shortCmd, longCmd, 0) \
if (!option) usage("Option '%s' requires an argument", argv[i]);
// Use this for options which have a required integer value
#define DO_OPTION_INT(shortCmd, longCmd) \
DO_OPTION_OPT(shortCmd, longCmd, 0) \
if (!option) usage("Option '%s' requires an argument", argv[i]); \
char *endptr = 0; \
int intValue; intValue = (int)strtol(option, &endptr, 0); \
if (endptr == NULL || *endptr != 0) usage("--%s: Invalid number '%s'", longCmd, option);
// Use this for boolean options; this distinguishes between "-x" and "-X",
// resp. between "--some-option" and "--no-some-option".
#define DO_OPTION_BOOL(shortCmd, longCmd) \
if (isLongCmd ? (!strcmp(s+2, longCmd) || !strcmp(s+2, "no-"longCmd)) : (tolower(s[1]) == shortCmd)) { \
bool boolValue = islower(s[1]); \
s += 2; \
if (isLongCmd) { \
boolValue = !strcmp(s, longCmd); \
s += boolValue ? (sizeof(longCmd) - 1) : (sizeof("no-"longCmd) - 1); \
} \
if (*s != '\0') goto unknownOption; \
const char *option = boolValue ? "true" : "false"; \
settings[longCmd] = option;
// Use this for options which never have a value, i.e. for 'commands', like "--help".
#define DO_OPTION_CMD(shortCmd, longCmd) \
if (isLongCmd ? (!strcmp(s+2, longCmd)) : (tolower(s[1]) == shortCmd)) { \
s += 2; \
if (isLongCmd) \
s += sizeof(longCmd) - 1; \
if (*s != '\0') goto unknownOption;
#define DO_LONG_OPTION_OPT(longCmd, d) DO_OPTION_OPT(0, longCmd, d)
#define DO_LONG_OPTION(longCmd) DO_OPTION(0, longCmd)
#define DO_LONG_OPTION_INT(longCmd) DO_OPTION_INT(0, longCmd)
#define DO_LONG_OPTION_BOOL(longCmd) DO_OPTION_BOOL(0, longCmd)
#define DO_LONG_OPTION_CMD(longCmd) DO_OPTION_CMD(0, longCmd)
// End an option handler
#define END_OPTION \
continue; \
}
Common::String GameDetector::parseCommandLine(Common::StringMap &settings, int argc, char **argv) {
const char *s, *s2;
// argv[0] contains the name of the executable.
if (argv && argv[0]) {
s = strchr(argv[0], '/');
s_appName = s ? s : argv[0];
}
// We store all command line settings into a string map.
// Iterate over all command line arguments and parse them into our string map.
for (int i = 1; i < argc; ++i) {
s = argv[i];
s2 = (i < argc-1) ? argv[i+1] : 0;
if (s[0] != '-') {
// The argument doesn't start with a dash, so it's not an option.
// Hence it must be the target name. We currently enforce that
// this always comes last.
if (i != argc - 1)
usage("Stray argument '%s'", s);
// We defer checking whether this is a valid target to a later point.
return s;
} else {
bool isLongCmd = (s[0] == '-' && s[1] == '-');
DO_OPTION_CMD('h', "help")
printf(HELP_STRING, argv[0]);
exit(0);
END_OPTION
DO_OPTION_CMD('v', "version")
printf("%s\n", gScummVMFullVersion);
printf("Features compiled in: %s\n", gScummVMFeatures);
exit(0);
END_OPTION
DO_OPTION_CMD('t', "list-targets")
return "list-targets";
END_OPTION
DO_OPTION_CMD('z', "list-games")
return "list-games";
END_OPTION
// HACK FIXME TODO: This switch is intentionally *not* documented!
DO_LONG_OPTION_CMD("test-detector")
return "test-detector";
END_OPTION
DO_OPTION('c', "config")
END_OPTION
DO_OPTION_INT('b', "boot-param")
END_OPTION
DO_OPTION_OPT('d', "debuglevel", "0")
END_OPTION
DO_LONG_OPTION("debugflags")
END_OPTION
DO_OPTION('e', "music-driver")
if (MidiDriver::parseMusicDriver(option) < 0)
usage("Unrecognized music driver '%s'", option);
END_OPTION
DO_LONG_OPTION_INT("output-rate")
END_OPTION
DO_OPTION_BOOL('f', "fullscreen")
END_OPTION
DO_OPTION('g', "gfx-mode")
// Check whether 'option' specifies a valid graphics mode.
bool isValid = false;
if (!scumm_stricmp(option, "normal") || !scumm_stricmp(option, "default"))
isValid = true;
if (!isValid) {
const OSystem::GraphicsMode *gm = g_system->getSupportedGraphicsModes();
while (gm->name && !isValid) {
isValid = !scumm_stricmp(gm->name, option);
gm++;
}
}
if (!isValid)
usage("Unrecognized graphics mode '%s'", option);
END_OPTION
DO_OPTION_INT('m', "music-volume")
END_OPTION
DO_OPTION_BOOL('n', "subtitles")
END_OPTION
DO_OPTION('p', "path")
// TODO: Verify whether the path is valid
END_OPTION
DO_OPTION('q', "language")
if (Common::parseLanguage(option) == Common::UNK_LANG)
usage("Unrecognized language '%s'", option);
END_OPTION
DO_OPTION_INT('s', "sfx-volume")
END_OPTION
DO_OPTION_INT('r', "speech-volume")
END_OPTION
DO_LONG_OPTION_INT("midi-gain")
END_OPTION
DO_OPTION_BOOL('u', "dump-scripts")
END_OPTION
DO_OPTION_OPT('x', "save-slot", "0")
END_OPTION
DO_LONG_OPTION_INT("cdrom")
END_OPTION
DO_LONG_OPTION_OPT("joystick", "0")
END_OPTION
DO_LONG_OPTION("platform")
int platform = Common::parsePlatform(option);
if (platform == Common::kPlatformUnknown)
usage("Unrecognized platform '%s'", option);
END_OPTION
DO_LONG_OPTION("soundfont")
// TODO: Verify whether the path is valid
END_OPTION
DO_LONG_OPTION_BOOL("disable-sdl-parachute")
END_OPTION
DO_LONG_OPTION_BOOL("multi-midi")
END_OPTION
DO_LONG_OPTION_BOOL("native-mt32")
END_OPTION
DO_LONG_OPTION_BOOL("enable-gs")
END_OPTION
DO_LONG_OPTION_BOOL("aspect-ratio")
END_OPTION
DO_LONG_OPTION("render-mode")
int renderMode = Common::parseRenderMode(option);
if (renderMode == Common::kRenderDefault)
usage("Unrecognized render mode '%s'", option);
END_OPTION
DO_LONG_OPTION_BOOL("force-1x-overlay")
END_OPTION
DO_LONG_OPTION("savepath")
// TODO: Verify whether the path is valid
END_OPTION
DO_LONG_OPTION_INT("talkspeed")
END_OPTION
DO_LONG_OPTION_BOOL("copy-protection")
END_OPTION
DO_LONG_OPTION("gui-theme")
END_OPTION
DO_LONG_OPTION("target-md5")
END_OPTION
#ifndef DISABLE_SCUMM
DO_LONG_OPTION_INT("tempo")
END_OPTION
DO_LONG_OPTION_BOOL("demo-mode")
END_OPTION
#endif
#if !defined(DISABLE_SKY) || !defined(DISABLE_QUEEN)
DO_LONG_OPTION_BOOL("alt-intro")
END_OPTION
#endif
unknownOption:
// If we get till here, the option is unhandled and hence unknown.
usage("Unrecognized option '%s'", argv[i]);
}
}
return Common::String::emptyString;
}
void GameDetector::processSettings(Common::String &target, Common::StringMap &settings) {
// If a target was specified, check whether there is either a game
// domain (i.e. a target) matching this argument, or alternatively
// whether there is a gameid matching that name.
if (!target.empty()) {
if (ConfMan.hasGameDomain(target) || findGame(target).gameid.size() > 0) {
setTarget(target);
} else {
usage("Unrecognized game target '%s'", target.c_str());
}
}
// The user can override the savepath with the SCUMMVM_SAVEPATH
// environment variable. This is weaker than a --savepath on the
// command line, but overrides the default savepath, hence it is
// handled here, just before the command line gets parsed.
#if !defined(MACOS_CARBON) && !defined(_WIN32_WCE) && !defined(PALMOS_MODE) && !defined(__GP32__)
if (!settings.contains("savepath")) {
const char *dir = getenv("SCUMMVM_SAVEPATH");
if (dir && *dir && strlen(dir) < MAXPATHLEN) {
// TODO: Verify whether the path is valid
settings["savepath"] = dir;
}
}
#endif
// Finally, store the command line settings into the config manager.
for (Common::StringMap::const_iterator x = settings.begin(); x != settings.end(); ++x) {
String key(x->_key);
String value(x->_value);
// Replace any "-" in the key by "_" (e.g. change "save-slot" to "save_slot").
for (String::iterator c = key.begin(); c != key.end(); ++c)
if (*c == '-')
*c = '_';
// Store it into ConfMan.
ConfMan.set(key, value, Common::ConfigManager::kTransientDomain);
}
}
void GameDetector::setTarget(const String &target) {
ConfMan.setActiveDomain(target);
// Make sure the gameid is set in the config manager, and that it is lowercase.
String gameid(target);
if (ConfMan.hasKey("gameid"))
gameid = ConfMan.get("gameid");
gameid.toLowercase();
ConfMan.set("gameid", gameid);
}
const Plugin *GameDetector::detectMain() {
const Plugin *plugin = 0;
if (ConfMan.getActiveDomainName().empty()) {
warning("No game was specified...");
return 0;
}
printf("Looking for %s\n", ConfMan.get("gameid").c_str());
GameDescriptor game = findGame(ConfMan.get("gameid"), &plugin);
if (plugin == 0) {
printf("Failed game detection\n");
warning("%s is an invalid target. Use the --list-targets option to list targets", ConfMan.getActiveDomainName().c_str());
return 0;
}
printf("Trying to start game '%s'\n", game.description.c_str());
String gameDataPath(ConfMan.get("path"));
if (gameDataPath.empty()) {
warning("No path was provided. Assuming the data files are in the current directory");
gameDataPath = "./";
} else if (gameDataPath.lastChar() != '/'
#if defined(__MORPHOS__) || defined(__amigaos4__)
&& gameDataPath.lastChar() != ':'
#endif
&& gameDataPath.lastChar() != '\\') {
gameDataPath += '/';
ConfMan.set("path", gameDataPath, Common::ConfigManager::kTransientDomain);
}
return plugin;
}
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