1 files changed, 680 insertions, 0 deletions
diff --git a/gui/EventRecorder.cpp b/gui/EventRecorder.cpp
new file mode 100644
index 0000000000..71f66911e9
--- /dev/null
+++ b/gui/EventRecorder.cpp
@@ -0,0 +1,680 @@
+/* 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.
+ *
+ */
+
+
+#include "gui/EventRecorder.h"
+
+#ifdef ENABLE_EVENTRECORDER
+
+namespace Common {
+DECLARE_SINGLETON(GUI::EventRecorder);
+}
+
+#include "common/debug-channels.h"
+#include "backends/timer/sdl/sdl-timer.h"
+#include "backends/mixer/sdl/sdl-mixer.h"
+#include "common/config-manager.h"
+#include "common/md5.h"
+#include "gui/gui-manager.h"
+#include "gui/widget.h"
+#include "gui/onscreendialog.h"
+#include "common/random.h"
+#include "common/savefile.h"
+#include "common/textconsole.h"
+#include "graphics/thumbnail.h"
+#include "graphics/surface.h"
+#include "graphics/scaler.h"
+
+namespace GUI {
+
+
+const int kMaxRecordsNames = 0x64;
+const int kDefaultScreenshotPeriod = 60000;
+const int kDefaultBPP = 2;
+
+uint32 readTime(Common::ReadStream *inFile) {
+	uint32 d = inFile->readByte();
+	if (d == 0xff) {
+		d = inFile->readUint32LE();
+	}
+
+	return d;
+}
+
+void writeTime(Common::WriteStream *outFile, uint32 d) {
+		//Simple RLE compression
+	if (d >= 0xff) {
+		outFile->writeByte(0xff);
+		outFile->writeUint32LE(d);
+	} else {
+		outFile->writeByte(d);
+	}
+}
+
+EventRecorder::EventRecorder() {
+	_timerManager = NULL;
+	_recordMode = kPassthrough;
+	_fakeMixerManager = NULL;
+	_initialized = false;
+	_needRedraw = false;
+	_fastPlayback = false;
+
+	_fakeTimer = 0;
+	_savedState = false;
+	_needcontinueGame = false;
+	_temporarySlot = 0;
+	_realSaveManager = 0;
+	_realMixerManager = 0;
+	_controlPanel = 0;
+	_lastMillis = 0;
+	_lastScreenshotTime = 0;
+	_screenshotPeriod = 0;
+	_playbackFile = 0;
+
+	DebugMan.addDebugChannel(kDebugLevelEventRec, "EventRec", "Event recorder debug level");
+}
+
+EventRecorder::~EventRecorder() {
+	if (_timerManager != NULL) {
+		delete _timerManager;
+	}
+}
+
+void EventRecorder::deinit() {
+	if (!_initialized) {
+		return;
+	}
+	setFileHeader();
+	_needRedraw = false;
+	_initialized = false;
+	_recordMode = kPassthrough;
+	delete _fakeMixerManager;
+	_fakeMixerManager = NULL;
+	_controlPanel->close();
+	delete _controlPanel;
+	debugC(1, kDebugLevelEventRec, "playback:action=stopplayback");
+	g_system->getEventManager()->getEventDispatcher()->unregisterSource(this);
+	_recordMode = kPassthrough;
+	_playbackFile->close();
+	delete _playbackFile;
+	switchMixer();
+	switchTimerManagers();
+	DebugMan.disableDebugChannel("EventRec");
+}
+
+void EventRecorder::processMillis(uint32 &millis, bool skipRecord) {
+	if (!_initialized) {
+		return;
+	}
+	if (skipRecord) {
+		millis = _fakeTimer;
+		return;
+	}
+	if (_recordMode == kRecorderPlaybackPause) {
+		millis = _fakeTimer;
+	}
+	uint32 millisDelay;
+	Common::RecorderEvent timerEvent;
+	switch (_recordMode) {
+	case kRecorderRecord:
+		updateSubsystems();
+		millisDelay = millis - _lastMillis;
+		_lastMillis = millis;
+		_fakeTimer += millisDelay;
+		_controlPanel->setReplayedTime(_fakeTimer);
+		timerEvent.recordedtype = Common::kRecorderEventTypeTimer;
+		timerEvent.time = _fakeTimer;
+		_playbackFile->writeEvent(timerEvent);
+		takeScreenshot();
+		_timerManager->handler();
+		break;
+	case kRecorderPlayback:
+		updateSubsystems();
+		if (_nextEvent.recordedtype == Common::kRecorderEventTypeTimer) {
+			_fakeTimer = _nextEvent.time;
+			_nextEvent = _playbackFile->getNextEvent();
+			_timerManager->handler();
+		} else {
+			if (_nextEvent.type == Common::EVENT_RTL) {
+				error("playback:action=stopplayback");
+			} else {
+				uint32 seconds = _fakeTimer / 1000;
+				Common::String screenTime = Common::String::format("%.2d:%.2d:%.2d", seconds / 3600 % 24, seconds / 60 % 60, seconds % 60);
+				error("playback:action=error reason=\"synchronization error\" time = %s", screenTime.c_str());
+			}
+		}
+		millis = _fakeTimer;
+		_controlPanel->setReplayedTime(_fakeTimer);
+		break;
+	case kRecorderPlaybackPause:
+		millis = _fakeTimer;
+		break;
+	default:
+		break;
+	}
+}
+
+bool EventRecorder::processDelayMillis() {
+	return _fastPlayback;
+}
+
+void EventRecorder::checkForKeyCode(const Common::Event &event) {
+	if ((event.type == Common::EVENT_KEYDOWN) && (event.kbd.flags & Common::KBD_CTRL) && (event.kbd.keycode == Common::KEYCODE_p) && (!event.synthetic)) {
+		togglePause();
+	}
+}
+
+bool EventRecorder::pollEvent(Common::Event &ev) {
+	if ((_recordMode != kRecorderPlayback) || !_initialized)
+		return false;
+
+	if ((_nextEvent.recordedtype == Common::kRecorderEventTypeTimer) || (_nextEvent.type ==  Common::EVENT_INVALID)) {
+		return false;
+	}
+
+	switch (_nextEvent.type) {
+	case Common::EVENT_MOUSEMOVE:
+	case Common::EVENT_LBUTTONDOWN:
+	case Common::EVENT_LBUTTONUP:
+	case Common::EVENT_RBUTTONDOWN:
+	case Common::EVENT_RBUTTONUP:
+	case Common::EVENT_WHEELUP:
+	case Common::EVENT_WHEELDOWN:
+		g_system->warpMouse(_nextEvent.mouse.x, _nextEvent.mouse.y);
+		break;
+	default:
+		break;
+	}
+	ev = _nextEvent;
+	_nextEvent = _playbackFile->getNextEvent();
+	return true;
+}
+
+void EventRecorder::switchFastMode() {
+	if (_recordMode == kRecorderPlaybackPause) {
+		_fastPlayback = !_fastPlayback;
+	}
+}
+
+void EventRecorder::togglePause() {
+	RecordMode oldState;
+	switch (_recordMode) {
+	case kRecorderPlayback:
+	case kRecorderRecord:
+		oldState = _recordMode;
+		_recordMode = kRecorderPlaybackPause;
+		_controlPanel->runModal();
+		_recordMode = oldState;
+		_initialized = true;
+		break;
+	case kRecorderPlaybackPause:
+		_controlPanel->close();
+		break;
+	default:
+		break;
+	}
+}
+
+void EventRecorder::RegisterEventSource() {
+	g_system->getEventManager()->getEventDispatcher()->registerMapper(this, false);
+}
+
+uint32 EventRecorder::getRandomSeed(const Common::String &name) {
+	uint32 result = g_system->getMillis();
+	if (_recordMode == kRecorderRecord) {
+		_playbackFile->getHeader().randomSourceRecords[name] = result;
+	} else if (_recordMode == kRecorderPlayback) {
+		result = _playbackFile->getHeader().randomSourceRecords[name];
+	}
+	return result;
+}
+
+Common::String EventRecorder::generateRecordFileName(const Common::String &target) {
+	Common::String pattern(target+".r??");
+	Common::StringArray files = g_system->getSavefileManager()->listSavefiles(pattern);
+	for (int i = 0; i < kMaxRecordsNames; ++i) {
+		Common::String recordName = Common::String::format("%s.r%02d", target.c_str(), i);
+		if (find(files.begin(), files.end(), recordName) != files.end()) {
+			continue;
+		}
+		return recordName;
+	}
+	return "";
+}
+
+
+void EventRecorder::init(Common::String recordFileName, RecordMode mode) {
+	_fakeMixerManager = new NullSdlMixerManager();
+	_fakeMixerManager->init();
+	_fakeMixerManager->suspendAudio();
+	_fakeTimer = 0;
+	_lastMillis = g_system->getMillis();
+	_playbackFile = new Common::PlaybackFile();
+	_lastScreenshotTime = 0;
+	_recordMode = mode;
+	_needcontinueGame = false;
+	if (ConfMan.hasKey("disable_display")) {
+		DebugMan.enableDebugChannel("EventRec");
+		gDebugLevel = 1;
+	}
+	if (_recordMode == kRecorderPlayback) {
+		debugC(1, kDebugLevelEventRec, "playback:action=\"Load file\" filename=%s", recordFileName.c_str());
+	}
+	g_system->getEventManager()->getEventDispatcher()->registerSource(this, false);
+	_screenshotPeriod = ConfMan.getInt("screenshot_period");
+	if (_screenshotPeriod == 0) {
+		_screenshotPeriod = kDefaultScreenshotPeriod;
+	}
+	if (!openRecordFile(recordFileName)) {
+		deinit();
+		error("playback:action=error reason=\"Record file loading error\"");
+		return;
+	}
+	if (_recordMode != kPassthrough) {
+		_controlPanel = new GUI::OnScreenDialog(_recordMode == kRecorderRecord);
+	}
+	if (_recordMode == kRecorderPlayback) {
+		applyPlaybackSettings();
+		_nextEvent = _playbackFile->getNextEvent();
+	}
+	if (_recordMode == kRecorderRecord) {
+		getConfig();
+	}
+
+	switchMixer();
+	switchTimerManagers();
+	_needRedraw = true;
+	_initialized = true;
+}
+
+
+/**
+ * Opens or creates file depend of recording mode.
+ *
+ *@param id of recording or playing back game
+ *@return true in case of success, false in case of error
+ *
+ */
+bool EventRecorder::openRecordFile(const Common::String &fileName) {
+	bool result;
+	switch (_recordMode) {
+	case kRecorderRecord:
+		return _playbackFile->openWrite(fileName);
+	case kRecorderPlayback:
+		_recordMode = kPassthrough;
+		result = _playbackFile->openRead(fileName);
+		_recordMode = kRecorderPlayback;
+		return result;
+	default:
+		return false;
+	}
+	return true;
+}
+
+bool EventRecorder::checkGameHash(const ADGameDescription *gameDesc) {
+	if (_playbackFile->getHeader().hashRecords.size() != 0) {
+		warning("Engine doesn't contain description table");
+		return false;
+	}
+	for (const ADGameFileDescription *fileDesc = gameDesc->filesDescriptions; fileDesc->fileName; fileDesc++) {
+		if (_playbackFile->getHeader().hashRecords.find(fileDesc->fileName) == _playbackFile->getHeader().hashRecords.end()) {
+			warning("MD5 hash for file %s not found in record file", fileDesc->fileName);
+			debugC(1, kDebugLevelEventRec, "playback:action=\"Check game hash\" filename=%s filehash=%s storedhash=\"\" result=different", fileDesc->fileName, fileDesc->md5);
+			return false;
+		}
+		if (_playbackFile->getHeader().hashRecords[fileDesc->fileName] != fileDesc->md5) {
+			warning("Incorrect version of game file %s. Stored MD5 is %s. MD5 of loaded game is %s", fileDesc->fileName, _playbackFile->getHeader().hashRecords[fileDesc->fileName].c_str(), fileDesc->md5);
+			debugC(1, kDebugLevelEventRec, "playback:action=\"Check game hash\" filename=%s filehash=%s storedhash=%s result=different", fileDesc->fileName, fileDesc->md5, _playbackFile->getHeader().hashRecords[fileDesc->fileName].c_str());
+			return false;
+		}
+		debugC(1, kDebugLevelEventRec, "playback:action=\"Check game hash\" filename=%s filehash=%s storedhash=%s result=equal", fileDesc->fileName, fileDesc->md5, _playbackFile->getHeader().hashRecords[fileDesc->fileName].c_str());
+	}
+	return true;
+}
+
+void EventRecorder::registerMixerManager(SdlMixerManager *mixerManager) {
+	_realMixerManager = mixerManager;
+}
+
+void EventRecorder::switchMixer() {
+	if (_recordMode == kPassthrough) {
+		_realMixerManager->resumeAudio();
+	} else {
+		_realMixerManager->suspendAudio();
+		_fakeMixerManager->resumeAudio();
+	}
+}
+
+SdlMixerManager *EventRecorder::getMixerManager() {
+	if (_recordMode == kPassthrough) {
+		return _realMixerManager;
+	} else {
+		return _fakeMixerManager;
+	}
+}
+
+void EventRecorder::getConfigFromDomain(const Common::ConfigManager::Domain *domain) {
+	for (Common::ConfigManager::Domain::const_iterator entry = domain->begin(); entry!= domain->end(); ++entry) {
+		_playbackFile->getHeader().settingsRecords[entry->_key] = entry->_value;
+	}
+}
+
+void EventRecorder::getConfig() {
+	getConfigFromDomain(ConfMan.getDomain(ConfMan.kApplicationDomain));
+	getConfigFromDomain(ConfMan.getActiveDomain());
+	_playbackFile->getHeader().settingsRecords["save_slot"] = ConfMan.get("save_slot");
+}
+
+
+void EventRecorder::applyPlaybackSettings() {
+	for (Common::StringMap::const_iterator i = _playbackFile->getHeader().settingsRecords.begin(); i != _playbackFile->getHeader().settingsRecords.end(); ++i) {
+		Common::String currentValue = ConfMan.get(i->_key);
+		if (currentValue != i->_value) {
+			ConfMan.set(i->_key, i->_value, ConfMan.kTransientDomain);
+			debugC(1, kDebugLevelEventRec, "playback:action=\"Apply settings\" key=%s storedvalue=%s currentvalue=%s result=different", i->_key.c_str(), i->_value.c_str(), currentValue.c_str());
+		} else {
+			debugC(1, kDebugLevelEventRec, "playback:action=\"Apply settings\" key=%s storedvalue=%s currentvalue=%s result=equal", i->_key.c_str(), i->_value.c_str(), currentValue.c_str());
+		}
+	}
+	removeDifferentEntriesInDomain(ConfMan.getDomain(ConfMan.kApplicationDomain));
+	removeDifferentEntriesInDomain(ConfMan.getActiveDomain());
+}
+
+void EventRecorder::removeDifferentEntriesInDomain(Common::ConfigManager::Domain *domain) {
+	for (Common::ConfigManager::Domain::const_iterator entry = domain->begin(); entry!= domain->end(); ++entry) {
+		if (_playbackFile->getHeader().settingsRecords.find(entry->_key) == _playbackFile->getHeader().settingsRecords.end()) {
+			debugC(1, kDebugLevelEventRec, "playback:action=\"Apply settings\" checksettings:key=%s storedvalue=%s currentvalue="" result=different", entry->_key.c_str(), entry->_value.c_str());
+			domain->erase(entry->_key);
+		}
+	}
+}
+
+DefaultTimerManager *EventRecorder::getTimerManager() {
+	return _timerManager;
+}
+
+void EventRecorder::registerTimerManager(DefaultTimerManager *timerManager) {
+	_timerManager = timerManager;
+}
+
+void EventRecorder::switchTimerManagers() {
+	delete _timerManager;
+	if (_recordMode == kPassthrough) {
+		_timerManager = new SdlTimerManager();
+	} else {
+		_timerManager = new DefaultTimerManager();
+	}
+}
+
+void EventRecorder::updateSubsystems() {
+	if (_recordMode == kPassthrough) {
+		return;
+	}
+	RecordMode oldRecordMode = _recordMode;
+	_recordMode = kPassthrough;
+	_fakeMixerManager->update();
+	_recordMode = oldRecordMode;
+}
+
+Common::List<Common::Event> EventRecorder::mapEvent(const Common::Event &ev, Common::EventSource *source) {
+	if ((!_initialized) && (_recordMode != kRecorderPlaybackPause)) {
+		return DefaultEventMapper::mapEvent(ev, source);
+	}
+
+	checkForKeyCode(ev);
+	Common::Event evt = ev;
+	evt.mouse.x = evt.mouse.x * (g_system->getOverlayWidth() / g_system->getWidth());
+	evt.mouse.y = evt.mouse.y * (g_system->getOverlayHeight() / g_system->getHeight());
+	switch (_recordMode) {
+	case kRecorderPlayback:
+		if (ev.synthetic != true) {
+			return Common::List<Common::Event>();
+		}
+		return Common::DefaultEventMapper::mapEvent(ev, source);
+		break;
+	case kRecorderRecord:
+		g_gui.processEvent(evt, _controlPanel);
+		if (((evt.type == Common::EVENT_LBUTTONDOWN) || (evt.type == Common::EVENT_LBUTTONUP) || (evt.type == Common::EVENT_MOUSEMOVE)) && _controlPanel->isMouseOver()) {
+			return Common::List<Common::Event>();
+		} else {
+			Common::RecorderEvent e;
+			memcpy(&e, &ev, sizeof(ev));
+			e.recordedtype = Common::kRecorderEventTypeNormal;
+			e.time = _fakeTimer;
+			_playbackFile->writeEvent(e);
+			return DefaultEventMapper::mapEvent(ev, source);
+		}
+		break;
+	case kRecorderPlaybackPause: {
+		Common::Event dialogEvent;
+		if (_controlPanel->isEditDlgVisible()) {
+			dialogEvent = ev;
+		} else {
+			dialogEvent = evt;
+		}
+		g_gui.processEvent(dialogEvent, _controlPanel->getActiveDlg());
+		if (((dialogEvent.type == Common::EVENT_LBUTTONDOWN) || (dialogEvent.type == Common::EVENT_LBUTTONUP) || (dialogEvent.type == Common::EVENT_MOUSEMOVE)) && _controlPanel->isMouseOver()) {
+			return Common::List<Common::Event>();
+		}
+		return Common::DefaultEventMapper::mapEvent(dialogEvent, source);
+	}
+		break;
+	default:
+		return Common::DefaultEventMapper::mapEvent(ev, source);
+	}
+
+	return Common::DefaultEventMapper::mapEvent(ev, source);
+}
+
+void EventRecorder::setGameMd5(const ADGameDescription *gameDesc) {
+	for (const ADGameFileDescription *fileDesc = gameDesc->filesDescriptions; fileDesc->fileName; fileDesc++) {
+		if (fileDesc->md5 != NULL) {
+			_playbackFile->getHeader().hashRecords[fileDesc->fileName] = fileDesc->md5;
+		}
+	}
+}
+
+void EventRecorder::processGameDescription(const ADGameDescription *desc) {
+	if (_recordMode == kRecorderRecord) {
+		setGameMd5(desc);
+	}
+	if ((_recordMode == kRecorderPlayback) && !checkGameHash(desc)) {
+		deinit();
+		error("playback:action=error reason=\"\"");
+	}
+}
+
+void EventRecorder::deleteRecord(const Common::String& fileName) {
+	g_system->getSavefileManager()->removeSavefile(fileName);
+}
+
+void EventRecorder::takeScreenshot() {
+	if ((_fakeTimer - _lastScreenshotTime) > _screenshotPeriod) {
+		Graphics::Surface screen;
+		uint8 md5[16];
+		if (grabScreenAndComputeMD5(screen, md5)) {
+			_lastScreenshotTime = _fakeTimer;
+			_playbackFile->saveScreenShot(screen, md5);
+			screen.free();
+		}
+	}
+}
+
+bool EventRecorder::grabScreenAndComputeMD5(Graphics::Surface &screen, uint8 md5[16]) {
+	if (!createScreenShot(screen)) {
+		warning("Can't save screenshot");
+		return false;
+	}
+	Common::MemoryReadStream bitmapStream((const byte*)screen.getPixels(), screen.w * screen.h * screen.format.bytesPerPixel);
+	computeStreamMD5(bitmapStream, md5);
+	return true;
+}
+
+Common::SeekableReadStream *EventRecorder::processSaveStream(const Common::String &fileName) {
+	Common::InSaveFile *saveFile;
+	switch (_recordMode) {
+	case kRecorderPlayback:
+		debugC(1, kDebugLevelEventRec, "playback:action=\"Process save file\" filename=%s len=%d", fileName.c_str(), _playbackFile->getHeader().saveFiles[fileName].size);
+		return new Common::MemoryReadStream(_playbackFile->getHeader().saveFiles[fileName].buffer, _playbackFile->getHeader().saveFiles[fileName].size);
+	case kRecorderRecord:
+		saveFile = _realSaveManager->openForLoading(fileName);
+		if (saveFile != NULL) {
+			_playbackFile->addSaveFile(fileName, saveFile);
+			saveFile->seek(0);
+		}
+		return saveFile;
+	default:
+		return NULL;
+		break;
+	}
+}
+
+Common::SaveFileManager *EventRecorder::getSaveManager(Common::SaveFileManager *realSaveManager) {
+	_realSaveManager = realSaveManager;
+	if (_recordMode != kPassthrough) {
+		return &_fakeSaveManager;
+	} else {
+		return realSaveManager;
+	}
+}
+
+void EventRecorder::preDrawOverlayGui() {
+    if ((_initialized) || (_needRedraw)) {
+		RecordMode oldMode = _recordMode;
+		_recordMode = kPassthrough;
+		g_system->showOverlay();
+		g_gui.theme()->clearAll();
+		g_gui.theme()->openDialog(true, GUI::ThemeEngine::kShadingNone);
+		_controlPanel->drawDialog();
+		g_gui.theme()->finishBuffering();
+		g_gui.theme()->updateScreen();
+		_recordMode = oldMode;
+   }
+}
+
+void EventRecorder::postDrawOverlayGui() {
+    if ((_initialized) || (_needRedraw)) {
+		RecordMode oldMode = _recordMode;
+		_recordMode = kPassthrough;
+	    g_system->hideOverlay();
+		_recordMode = oldMode;
+	}
+}
+
+Common::StringArray EventRecorder::listSaveFiles(const Common::String &pattern) {
+	if (_recordMode == kRecorderPlayback) {
+		Common::StringArray result;
+		for (Common::HashMap<Common::String, Common::PlaybackFile::SaveFileBuffer>::iterator  i = _playbackFile->getHeader().saveFiles.begin(); i != _playbackFile->getHeader().saveFiles.end(); ++i) {
+			if (i->_key.matchString(pattern, false, true)) {
+				result.push_back(i->_key);
+			}
+		}
+		return result;
+	} else {
+		return _realSaveManager->listSavefiles(pattern);
+	}
+}
+
+void EventRecorder::setFileHeader() {
+	if (_recordMode != kRecorderRecord) {
+		return;
+	}
+	TimeDate t;
+	const EnginePlugin *plugin = 0;
+	GameDescriptor desc = EngineMan.findGame(ConfMan.getActiveDomainName(), &plugin);
+	g_system->getTimeAndDate(t);
+	if (_author.empty()) {
+		setAuthor("Unknown Author");
+	}
+	if (_name.empty()) {
+		g_eventRec.setName(Common::String::format("%.2d.%.2d.%.4d ", t.tm_mday, t.tm_mon, 1900 + t.tm_year) + desc.description());
+	}
+	_playbackFile->getHeader().author = _author;
+	_playbackFile->getHeader().notes = _desc;
+	_playbackFile->getHeader().name = _name;
+}
+
+SDL_Surface *EventRecorder::getSurface(int width, int height) {
+	// Create a RGB565 surface of the requested dimensions.
+	return SDL_CreateRGBSurface(SDL_SWSURFACE, width, height, 16, 0xF800, 0x07E0, 0x001F, 0x0000);
+}
+
+bool EventRecorder::switchMode() {
+	const Common::String gameId = ConfMan.get("gameid");
+	const EnginePlugin *plugin = 0;
+	EngineMan.findGame(gameId, &plugin);
+	bool metaInfoSupport = (*plugin)->hasFeature(MetaEngine::kSavesSupportMetaInfo);
+	bool featuresSupport = metaInfoSupport &&
+						  g_engine->canSaveGameStateCurrently() &&
+						  (*plugin)->hasFeature(MetaEngine::kSupportsListSaves) &&
+						  (*plugin)->hasFeature(MetaEngine::kSupportsDeleteSave);
+	if (!featuresSupport) {
+		return false;
+	}
+
+	int emptySlot = 1;
+	SaveStateList saveList = (*plugin)->listSaves(gameId.c_str());
+	for (SaveStateList::const_iterator x = saveList.begin(); x != saveList.end(); ++x) {
+		int saveSlot = x->getSaveSlot();
+		if (saveSlot == 0) {
+			continue;
+		}
+		if (emptySlot != saveSlot) {
+			break;
+		}
+		emptySlot++;
+	}
+	Common::String saveName;
+	if (emptySlot >= 0) {
+		saveName = Common::String::format("Save %d", emptySlot + 1);
+		Common::Error status = g_engine->saveGameState(emptySlot, saveName);
+		if (status.getCode() == Common::kNoError) {
+			Common::Event eventRTL;
+			eventRTL.type = Common::EVENT_RTL;
+			g_system->getEventManager()->pushEvent(eventRTL);
+		}
+	}
+	ConfMan.set("record_mode", "", Common::ConfigManager::kTransientDomain);
+	ConfMan.setInt("save_slot", emptySlot, Common::ConfigManager::kTransientDomain);
+	_needcontinueGame = true;
+	return true;
+}
+
+bool EventRecorder::checkForContinueGame() {
+	bool result = _needcontinueGame;
+	_needcontinueGame = false;
+	return result;
+}
+
+void EventRecorder::deleteTemporarySave() {
+	if (_temporarySlot == -1) return;
+	const Common::String gameId = ConfMan.get("gameid");
+	const EnginePlugin *plugin = 0;
+	EngineMan.findGame(gameId, &plugin);
+	 (*plugin)->removeSaveState(gameId.c_str(), _temporarySlot);
+	_temporarySlot = -1;
+}
+
+} // End of namespace GUI
+
+#endif // ENABLE_EVENTRECORDER
+