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scummvm/base/gameDetector.cpp

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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
* Copyright (C) 2001-2005 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 "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"
#if defined(HAVE_CONFIG_H)
#include "config.h"
#endif
#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
#endif
// DONT FIXME: DO NOT ORDER ALPHABETICALLY, THIS IS ORDERED BY IMPORTANCE/CATEGORY! :)
#ifdef __PALM_OS__
static const char USAGE_STRING[] = "NoUsageString"; // save more data segment space
#else
static const char USAGE_STRING[] =
"ScummVM - Graphical Adventure Game Interpreter\n"
"Usage: scummvm [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"
" -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"
" -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 version of game (allowed values: amiga,\n"
" atari, fmtowns, nes, mac, pc, 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
#ifndef DISABLE_SCUMM
" --copy-protection Enable copy protection in SCUMM games, when\n"
" ScummVM disables it by default.\n"
" --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"
" --talkspeed=NUM Set talk speed for SCUMM games (default: 60)\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
GameDetector::GameDetector() {
// Graphics
ConfMan.registerDefault("fullscreen", false);
ConfMan.registerDefault("aspect_ratio", false);
ConfMan.registerDefault("gfx_mode", "normal");
ConfMan.registerDefault("render_mode", "default");
// 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("music_driver", ???);
ConfMan.registerDefault("cdrom", 0);
// Game specifc
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("subtitles", false);
ConfMan.registerDefault("boot_param", 0);
ConfMan.registerDefault("save_slot", -1);
#if !defined(DISABLE_SCUMM) || !defined(DISABLE_SWORD2)
ConfMan.registerDefault("object_labels", true);
#endif
#ifndef DISABLE_SCUMM
ConfMan.registerDefault("copy_protection", false);
ConfMan.registerDefault("demo_mode", false);
ConfMan.registerDefault("talkspeed", 60);
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);
#ifdef USE_ALSA
ConfMan.registerDefault("alsa_port", "65:0");
#endif
#ifdef DEFAULT_SAVE_PATH
char savePath[MAXPATHLEN];
#ifdef UNIX
struct stat sb;
if (getenv("HOME") != NULL) {
snprintf(savePath, MAXPATHLEN, "%s/%s", getenv("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 we can the dir is there */
if (stat(savePath, &sb) == 0) {
ConfMan.registerDefault("savepath", savePath);
}
}
#endif
#endif
_dumpScripts = false;
_force1xOverlay = false;
memset(&_game, 0, sizeof(_game));
_plugin = 0;
}
/** List all supported games, i.e. all games which any loaded plugin supports. */
void listGames() {
const PluginList &plugins = PluginManager::instance().getPlugins();
printf("Game ID Full Title \n"
"-------------------- ------------------------------------------------------\n");
PluginList::const_iterator iter = plugins.begin();
for (iter = plugins.begin(); iter != plugins.end(); ++iter) {
GameList list = (*iter)->getSupportedGames();
for (GameList::iterator v = list.begin(); v != list.end(); ++v) {
printf("%-20s %s\n", v->name, v->description);
}
}
}
/** List all targets which are configured in the config file. */
void listTargets() {
using namespace Common;
const ConfigManager::DomainMap &domains = ConfMan.getGameDomains();
printf("Target Description \n"
"-------------------- ------------------------------------------------------\n");
ConfigManager::DomainMap::const_iterator iter = domains.begin();
for (iter = domains.begin(); iter != domains.end(); ++iter) {
String name(iter->_key);
String description(iter->_value.get("description"));
if (description.isEmpty()) {
GameSettings g = GameDetector::findGame(name);
if (g.description)
description = g.description;
}
printf("%-20s %s\n", name.c_str(), description.c_str());
}
}
GameSettings GameDetector::findGame(const String &gameName, const Plugin **plugin) {
// Find the GameSettings for this target
const PluginList &plugins = PluginManager::instance().getPlugins();
GameSettings result = {NULL, NULL, 0};
PluginList::const_iterator iter = plugins.begin();
for (iter = plugins.begin(); iter != plugins.end(); ++iter) {
result = (*iter)->findGame(gameName.c_str());
if (result.name) {
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) \
if (isLongCmd ? (!memcmp(s, longCmd"=", sizeof(longCmd"=") - 1)) : (shortCmdLower == shortCmd)) { \
if (isLongCmd) \
s += sizeof(longCmd"=") - 1; \
if ((*s != '\0') && (current_option != NULL)) goto ShowHelpAndExit; \
char *option = (*s != '\0') ? s : current_option; \
current_option = NULL;
// Use this for options which have a required (string) value
#define DO_OPTION(shortCmd, longCmd) \
DO_OPTION_OPT(shortCmd, longCmd) \
if (option == NULL) goto ShowHelpAndExit;
// Use this for options which have a required integer value
#define DO_OPTION_INT(shortCmd, longCmd) \
DO_OPTION_OPT(shortCmd, longCmd) \
if (option == NULL) goto ShowHelpAndExit; \
char *endptr = 0; \
int intValue; intValue = (int)strtol(option, &endptr, 10); \
if (endptr == NULL || *endptr != 0) goto ShowHelpAndExit;
// 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, longCmd) || !strcmp(s, "no-"longCmd)) : (shortCmdLower == shortCmd)) { \
if (isLongCmd) { \
boolValue = !strcmp(s, longCmd); \
s += boolValue ? (sizeof(longCmd) - 1) : (sizeof("no-"longCmd) - 1); \
} \
if ((*s != '\0') || (current_option != NULL)) goto ShowHelpAndExit;
// 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, longCmd)) : (shortCmdLower == shortCmd)) { \
if (isLongCmd) \
s += sizeof(longCmd) - 1; \
if ((*s != '\0') || (current_option != NULL)) goto ShowHelpAndExit;
#define DO_LONG_OPTION_OPT(longCmd) DO_OPTION_OPT(0, longCmd)
#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; \
}
void GameDetector::parseCommandLine(int argc, char **argv) {
int i;
char *s;
char *current_option = NULL;
char shortCmdLower;
bool isLongCmd, boolValue;
// We store all command line settings in a string map, instead of
// immediately putting it into the config manager. We do that to
// make a potential future change to the config manager easier: In
// particular, right now there is only one transient config domain
// domain, in the future there might be two (one for the app, one
// for the active game). Since we only know after all params have
// been parsed whether a game is going to be started or whether we
// run the launcher, we need to delay putting things into the config
// manager until after parsing is complete.
Common::StringMap settings;
// 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(__PALM_OS__)
const char *dir = getenv("SCUMMVM_SAVEPATH");
if (dir && *dir) {
// TODO: Verify whether the path is valid
settings["savepath"] = dir;
}
#endif
// Iterate over all command line arguments, backwards.
for (i = argc - 1; i >= 1; i--) {
s = argv[i];
if (s[0] != '-' || s[1] == '\0') {
// Last argument: this could be a target name.
// To verify this, check if there is either a game domain (i.e.
// a configured target) matching this argument, or if we can
// find any target with that name.
if (i == (argc - 1) && (ConfMan.hasGameDomain(s) || findGame(s).name)) {
setTarget(s);
} else {
if (current_option == NULL)
current_option = s;
else
goto ShowHelpAndExit;
}
} else {
shortCmdLower = tolower(s[1]);
isLongCmd = (s[0] == '-' && s[1] == '-');
boolValue = (shortCmdLower == s[1]);
s += 2;
DO_OPTION('c', "config")
// Dummy
END_OPTION
DO_OPTION_INT('b', "boot-param")
settings["boot_param"] = option;
END_OPTION
DO_OPTION_OPT('d', "debuglevel")
gDebugLevel = option ? (int)strtol(option, 0, 10) : 0;
printf("Debuglevel (from command line): %d\n", gDebugLevel);
END_OPTION
DO_OPTION('e', "music-driver")
// TODO: Instead of just showing the generic help text,
// maybe print a message like:
// "'option' is not a supported music driver on this machine.
// Available driver: ..."
if (MidiDriver::parseMusicDriver(option) < 0)
goto ShowHelpAndExit;
settings["music_driver"] = option;
END_OPTION
DO_LONG_OPTION_INT("output-rate")
settings["output_rate"] = option;
END_OPTION
DO_OPTION_BOOL('f', "fullscreen")
settings["fullscreen"] = boolValue ? "true" : "false";
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++;
}
}
// TODO: Instead of just showing the generic help text,
// maybe print a message like:
// "'option' is not a supported graphic mode on this machine.
// Available graphic modes: ..."
if (!isValid)
goto ShowHelpAndExit;
settings["gfx_mode"] = option;
END_OPTION
DO_OPTION_CMD('h', "help")
printf(USAGE_STRING);
exit(0);
END_OPTION
DO_OPTION_INT('m', "music-volume")
settings["music_volume"] = option;
END_OPTION
DO_OPTION_BOOL('n', "subtitles")
settings["subtitles"] = boolValue ? "true" : "false";
END_OPTION
DO_OPTION('p', "path")
// TODO: Verify whether the path is valid
settings["path"] = option;
END_OPTION
DO_OPTION('q', "language")
if (Common::parseLanguage(option) == Common::UNK_LANG)
goto ShowHelpAndExit;
settings["language"] = option;
END_OPTION
DO_OPTION_INT('s', "sfx-volume")
settings["sfx_volume"] = option;
END_OPTION
DO_OPTION_INT('r', "speech-volume")
settings["speech_volume"] = option;
END_OPTION
DO_OPTION_CMD('t', "list-targets")
listTargets();
exit(0);
END_OPTION
DO_OPTION_BOOL('u', "dump-scripts")
_dumpScripts = true;
END_OPTION
DO_OPTION_CMD('v', "version")
printf("%s\n", gScummVMFullVersion);
printf("Features compiled in: %s\n", gScummVMFeatures);
exit(0);
END_OPTION
DO_OPTION_OPT('x', "save-slot")
settings["save_slot"] = (option != NULL) ? option : "0";
END_OPTION
DO_OPTION_CMD('z', "list-games")
listGames();
exit(0);
END_OPTION
DO_LONG_OPTION_INT("cdrom")
settings["cdrom"] = option;
END_OPTION
DO_LONG_OPTION_OPT("joystick")
settings["joystick_num"] = (option != NULL) ? option : "0";
END_OPTION
DO_LONG_OPTION("platform")
int platform = Common::parsePlatform(option);
if (platform == Common::kPlatformUnknown)
goto ShowHelpAndExit;
settings["platform"] = option;
END_OPTION
DO_LONG_OPTION("soundfont")
// TODO: Verify whether the path is valid
settings["soundfont"] = option;
END_OPTION
DO_LONG_OPTION_BOOL("multi-midi")
settings["multi_midi"] = boolValue ? "true" : "false";
END_OPTION
DO_LONG_OPTION_BOOL("native-mt32")
settings["native_mt32"] = boolValue ? "true" : "false";
END_OPTION
DO_LONG_OPTION_BOOL("enable-gs")
settings["enable_gs"] = boolValue ? "true" : "false";
END_OPTION
DO_LONG_OPTION_BOOL("aspect-ratio")
settings["aspect_ratio"] = boolValue ? "true" : "false";
END_OPTION
DO_LONG_OPTION("render-mode")
int renderMode = Common::parseRenderMode(option);
if (renderMode == Common::kRenderDefault)
goto ShowHelpAndExit;
settings["render_mode"] = option;
END_OPTION
DO_LONG_OPTION_BOOL("force-1x-overlay")
_force1xOverlay = true;
END_OPTION
DO_LONG_OPTION("savepath")
// TODO: Verify whether the path is valid
settings["savepath"] = option;
END_OPTION
#ifndef DISABLE_SCUMM
DO_LONG_OPTION("tempo")
// Use the special value '0' for the base in (int)strtol.
// Doing that makes it possible to enter hex values
// as "0x1234", but also decimal values ("123").
int value = (int)strtol(option, 0, 0);
char buf[20];
snprintf(buf, sizeof(buf), "%d", value);
settings["tempo"] = buf;
END_OPTION
DO_LONG_OPTION_INT("talkspeed")
settings["talkspeed"] = option;
END_OPTION
DO_LONG_OPTION_BOOL("copy-protection")
settings["copy_protection"] = boolValue ? "true" : "false";
END_OPTION
DO_LONG_OPTION_BOOL("demo-mode")
settings["demo_mode"] = boolValue ? "true" : "false";
END_OPTION
#endif
#if !defined(DISABLE_SKY) || !defined(DISABLE_QUEEN)
DO_LONG_OPTION_BOOL("alt-intro")
settings["alt_intro"] = boolValue ? "true" : "false";
END_OPTION
#endif
// If we get till here, the option is unhandled and hence unknown.
goto ShowHelpAndExit;
}
}
if (current_option) {
ShowHelpAndExit:
printf(USAGE_STRING);
exit(1);
}
// Finally, store the command line settings into the config manager.
for (Common::StringMap::const_iterator x = settings.begin(); x != settings.end(); ++x)
ConfMan.set(x->_key, x->_value, Common::ConfigManager::kTransientDomain);
}
void GameDetector::setTarget(const String &name) {
_targetName = name;
ConfMan.setActiveDomain(name);
}
bool GameDetector::detectGame() {
String realGame;
if (ConfMan.hasKey("gameid"))
realGame = ConfMan.get("gameid");
else
realGame = _targetName;
printf("Looking for %s\n", realGame.c_str());
_game = findGame(realGame, &_plugin);
if (_game.name) {
printf("Trying to start game '%s'\n", _game.description);
return true;
} else {
printf("Failed game detection\n");
return false;
}
}
bool GameDetector::detectMain() {
if (_targetName.isEmpty()) {
warning("No game was specified...");
return false;
}
if (!detectGame()) {
warning("%s is an invalid target. Use the --list-targets option to list targets", _targetName.c_str());
return false;
}
String gameDataPath(ConfMan.get("path"));
if (gameDataPath.isEmpty()) {
warning("No path was provided. Assuming the data files are in the current directory");
gameDataPath = "./";
} else if (gameDataPath.lastChar() != '/'
#ifdef __MORPHOS__
&& gameDataPath.lastChar() != ':'
#endif
&& gameDataPath.lastChar() != '\\') {
gameDataPath += '/';
ConfMan.set("path", gameDataPath, Common::ConfigManager::kTransientDomain);
}
return true;
}
Engine *GameDetector::createEngine(OSystem *sys) {
assert(_plugin);
return _plugin->createInstance(this, sys);
}
SoundMixer *GameDetector::createMixer() {
return new SoundMixer();
}
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