scummvm/engines/saga/detection.cpp
Filippos Karapetis 203358bcb7 Improved handling of sound resources
svn-id: r35724
2009-01-04 14:38:03 +00:00

390 lines
11 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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.
*
* $URL$
* $Id$
*
*/
// Game detection, general game parameters
#include "saga/saga.h"
#include "base/plugins.h"
#include "common/config-manager.h"
#include "common/advancedDetector.h"
#include "common/system.h"
#include "graphics/thumbnail.h"
#include "saga/animation.h"
#include "saga/displayinfo.h"
#include "saga/events.h"
#include "saga/resource.h"
#include "saga/interface.h"
#include "saga/scene.h"
namespace Saga {
struct SAGAGameDescription {
Common::ADGameDescription desc;
int gameId;
uint32 features;
int startSceneNumber;
const GameResourceDescription *resourceDescription;
int fontsCount;
const GameFontDescription *fontDescriptions;
const GameSoundInfo *voiceInfo;
const GameSoundInfo *sfxInfo;
const GamePatchDescription *patchDescriptions;
};
bool SagaEngine::isBigEndian() const { return isMacResources() && getGameId() == GID_ITE; }
bool SagaEngine::isMacResources() const { return (getPlatform() == Common::kPlatformMacintosh); }
const GameResourceDescription *SagaEngine::getResourceDescription() { return _gameDescription->resourceDescription; }
const GameSoundInfo *SagaEngine::getVoiceInfo() const { return _gameDescription->voiceInfo; }
const GameSoundInfo *SagaEngine::getSfxInfo() const { return _gameDescription->sfxInfo; }
const GameSoundInfo *SagaEngine::getMusicInfo() const {
static GameSoundInfo musicInfo;
musicInfo.resourceType = kSoundPCM;
musicInfo.sampleBits = 16;
musicInfo.isSigned = true;
return &musicInfo;
}
const GameFontDescription *SagaEngine::getFontDescription(int index) {
assert(index < _gameDescription->fontsCount);
return &_gameDescription->fontDescriptions[index];
}
int SagaEngine::getFontsCount() const { return _gameDescription->fontsCount; }
int SagaEngine::getGameId() const { return _gameDescription->gameId; }
uint32 SagaEngine::getFeatures() const {
uint32 result = _gameDescription->features;
if (_gf_wyrmkeep)
result |= GF_WYRMKEEP;
return result;
}
Common::Language SagaEngine::getLanguage() const { return _gameDescription->desc.language; }
Common::Platform SagaEngine::getPlatform() const { return _gameDescription->desc.platform; }
int SagaEngine::getGameNumber() const { return _gameNumber; }
int SagaEngine::getStartSceneNumber() const { return _gameDescription->startSceneNumber; }
const GamePatchDescription *SagaEngine::getPatchDescriptions() const { return _gameDescription->patchDescriptions; }
const Common::ADGameFileDescription *SagaEngine::getFilesDescriptions() const { return _gameDescription->desc.filesDescriptions; }
}
static const PlainGameDescriptor sagaGames[] = {
{"saga", "SAGA Engine game"},
{"ite", "Inherit the Earth: Quest for the Orb"},
{"ihnm", "I Have No Mouth and I Must Scream"},
{"dino", "Dinotopia"},
{"fta2", "Faery Tale Adventure II: Halls of the Dead"},
{0, 0}
};
static const Common::ADObsoleteGameID obsoleteGameIDsTable[] = {
{"ite", "saga", Common::kPlatformUnknown},
{"ihnm", "saga", Common::kPlatformUnknown},
{"dino", "saga", Common::kPlatformUnknown},
{"fta2", "saga", Common::kPlatformUnknown},
{0, 0, Common::kPlatformUnknown}
};
#include "saga/detection_tables.h"
static const Common::ADParams detectionParams = {
// Pointer to ADGameDescription or its superset structure
(const byte *)Saga::gameDescriptions,
// Size of that superset structure
sizeof(Saga::SAGAGameDescription),
// Number of bytes to compute MD5 sum for
5000,
// List of all engine targets
sagaGames,
// Structure for autoupgrading obsolete targets
obsoleteGameIDsTable,
// Name of single gameid (optional)
"saga",
// List of files for file-based fallback detection (optional)
0,
// Flags
0
};
class SagaMetaEngine : public Common::AdvancedMetaEngine {
public:
SagaMetaEngine() : Common::AdvancedMetaEngine(detectionParams) {}
virtual const char *getName() const {
return "Saga engine ["
#if defined(ENABLE_IHNM) && defined(ENABLE_SAGA2)
"all games"
#else
"ITE"
#if defined(ENABLE_IHNM)
", IHNM"
#endif
#if defined(ENABLE_SAGA2)
", SAGA2 games"
#endif
#endif
"]";
;
}
virtual const char *getCopyright() const {
return "Inherit the Earth (C) Wyrmkeep Entertainment";
}
virtual bool hasFeature(MetaEngineFeature f) const;
virtual bool createInstance(OSystem *syst, Engine **engine, const Common::ADGameDescription *desc) const;
virtual SaveStateList listSaves(const char *target) const;
virtual int getMaximumSaveSlot() const;
virtual void removeSaveState(const char *target, int slot) const;
SaveStateDescriptor querySaveMetaInfos(const char *target, int slot) const;
};
bool SagaMetaEngine::hasFeature(MetaEngineFeature f) const {
return
(f == kSupportsListSaves) ||
(f == kSupportsLoadingDuringStartup) ||
(f == kSupportsDeleteSave) ||
(f == kSavesSupportMetaInfo) ||
(f == kSavesSupportThumbnail) ||
(f == kSavesSupportCreationDate);
}
bool Saga::SagaEngine::hasFeature(EngineFeature f) const {
return
(f == kSupportsRTL) ||
(f == kSupportsLoadingDuringRuntime) ||
(f == kSupportsSavingDuringRuntime);
}
bool SagaMetaEngine::createInstance(OSystem *syst, Engine **engine, const Common::ADGameDescription *desc) const {
const Saga::SAGAGameDescription *gd = (const Saga::SAGAGameDescription *)desc;
if (gd) {
*engine = new Saga::SagaEngine(syst, gd);
}
return gd != 0;
}
SaveStateList SagaMetaEngine::listSaves(const char *target) const {
Common::SaveFileManager *saveFileMan = g_system->getSavefileManager();
Common::StringList filenames;
char saveDesc[SAVE_TITLE_SIZE];
Common::String pattern = target;
pattern += ".s??";
filenames = saveFileMan->listSavefiles(pattern.c_str());
sort(filenames.begin(), filenames.end()); // Sort (hopefully ensuring we are sorted numerically..)
SaveStateList saveList;
int slotNum = 0;
for (Common::StringList::const_iterator file = filenames.begin(); file != filenames.end(); ++file) {
// Obtain the last 2 digits of the filename, since they correspond to the save slot
slotNum = atoi(file->c_str() + file->size() - 2);
if (slotNum >= 0 && slotNum <= 99) {
Common::InSaveFile *in = saveFileMan->openForLoading(file->c_str());
if (in) {
for (int i = 0; i < 3; i++)
in->readUint32BE();
in->read(saveDesc, SAVE_TITLE_SIZE);
saveList.push_back(SaveStateDescriptor(slotNum, saveDesc));
delete in;
}
}
}
return saveList;
}
int SagaMetaEngine::getMaximumSaveSlot() const { return 99; }
void SagaMetaEngine::removeSaveState(const char *target, int slot) const {
char extension[6];
snprintf(extension, sizeof(extension), ".s%02d", slot);
Common::String filename = target;
filename += extension;
g_system->getSavefileManager()->removeSavefile(filename.c_str());
}
SaveStateDescriptor SagaMetaEngine::querySaveMetaInfos(const char *target, int slot) const {
static char fileName[MAX_FILE_NAME];
sprintf(fileName, "%s.s%02d", target, slot);
char title[TITLESIZE];
Common::InSaveFile *in = g_system->getSavefileManager()->openForLoading(fileName);
if (in) {
uint32 type = in->readUint32BE();
in->readUint32LE(); // size
uint32 version = in->readUint32LE();
char name[SAVE_TITLE_SIZE];
in->read(name, sizeof(name));
SaveStateDescriptor desc(slot, name);
// Some older saves were not written in an endian safe fashion.
// We try to detect this here by checking for extremly high version values.
// If found, we retry with the data swapped.
if (version > 0xFFFFFF) {
warning("This savegame is not endian safe, retrying with the data swapped");
version = SWAP_BYTES_32(version);
}
debug(2, "Save version: %x", version);
if (version < 4)
warning("This savegame is not endian-safe. There may be problems");
if (type != MKID_BE('SAGA')) {
error("SagaEngine::load wrong save game format");
}
if (version > 4) {
in->read(title, TITLESIZE);
debug(0, "Save is for: %s", title);
}
desc.setDeletableFlag(true);
desc.setWriteProtectedFlag(false);
if (version >= 6) {
Graphics::Surface *thumbnail = new Graphics::Surface();
assert(thumbnail);
if (!Graphics::loadThumbnail(*in, *thumbnail)) {
delete thumbnail;
thumbnail = 0;
}
desc.setThumbnail(thumbnail);
uint32 saveDate = in->readUint32BE();
uint16 saveTime = in->readUint16BE();
int day = (saveDate >> 24) & 0xFF;
int month = (saveDate >> 16) & 0xFF;
int year = saveDate & 0xFFFF;
desc.setSaveDate(year, month, day);
int hour = (saveTime >> 8) & 0xFF;
int minutes = saveTime & 0xFF;
desc.setSaveTime(hour, minutes);
// TODO: played time
}
delete in;
return desc;
}
return SaveStateDescriptor();
}
#if PLUGIN_ENABLED_DYNAMIC(SAGA)
REGISTER_PLUGIN_DYNAMIC(SAGA, PLUGIN_TYPE_ENGINE, SagaMetaEngine);
#else
REGISTER_PLUGIN_STATIC(SAGA, PLUGIN_TYPE_ENGINE, SagaMetaEngine);
#endif
namespace Saga {
bool SagaEngine::initGame() {
_displayClip.right = getDisplayInfo().width;
_displayClip.bottom = getDisplayInfo().height;
return _resource->createContexts();
}
const GameDisplayInfo &SagaEngine::getDisplayInfo() {
switch (_gameDescription->gameId) {
case GID_ITE:
return ITE_DisplayInfo;
#ifdef ENABLE_IHNM
case GID_IHNM:
return IHNM_DisplayInfo;
#endif
#ifdef ENABLE_SAGA2
case GID_DINO:
return FTA2_DisplayInfo; // TODO
case GID_FTA2:
return FTA2_DisplayInfo;
#endif
default:
error("getDisplayInfo: Unknown game ID");
return ITE_DisplayInfo; // unreachable
}
}
Common::Error SagaEngine::loadGameState(int slot) {
// Init the current chapter to 8 (character selection) for IHNM
if (getGameId() == GID_IHNM)
_scene->changeScene(-2, 0, kTransitionFade, 8);
// First scene sets up palette
_scene->changeScene(getStartSceneNumber(), 0, kTransitionNoFade);
_events->handleEvents(0); // Process immediate events
if (getGameId() == GID_ITE)
_interface->setMode(kPanelMain);
else
_interface->setMode(kPanelChapterSelection);
load(calcSaveFileName((uint)slot));
syncSoundSettings();
return Common::kNoError; // TODO: return success/failure
}
Common::Error SagaEngine::saveGameState(int slot, const char *desc) {
save(calcSaveFileName((uint)slot), desc);
return Common::kNoError; // TODO: return success/failure
}
bool SagaEngine::canLoadGameStateCurrently() {
return !_scene->isInIntro();
}
bool SagaEngine::canSaveGameStateCurrently() {
return !_scene->isInIntro() &&
(_interface->getMode() == kPanelMain || _interface->getMode() == kPanelChapterSelection);
}
} // End of namespace Saga