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/* 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.
 *
 * $URL$
 * $Id$
 *
 */

#ifndef BACKENDS_MODULAR_BACKEND_H
#define BACKENDS_MODULAR_BACKEND_H

#include "common/system.h"
#include "common/timer.h"
#include "common/savefile.h"
#include "backends/events/default/default-events.h"
#include "backends/audiocd/default/default-audiocd.h"
#include "backends/mutex/null/null-mutex.h"
#include "backends/graphics/null/null-graphics.h"

class ModularBackend : public OSystem, public Common::EventSource {
public:
	ModularBackend();
	virtual ~ModularBackend();

	virtual bool hasFeature(Feature f);
	virtual void setFeatureState(Feature f, bool enable);
	virtual bool getFeatureState(Feature f);

	virtual const GraphicsMode *getSupportedGraphicsModes() const;
	virtual int getDefaultGraphicsMode() const;
	virtual bool setGraphicsMode(int mode);
	virtual int getGraphicsMode() const;
#ifdef USE_RGB_COLOR
	virtual Graphics::PixelFormat getScreenFormat() const;
	virtual Common::List<Graphics::PixelFormat> getSupportedFormats();
#endif
	virtual void initSize(uint width, uint height, const Graphics::PixelFormat *format = NULL);
	virtual int getScreenChangeID() const;

	virtual void beginGFXTransaction();
	virtual OSystem::TransactionError endGFXTransaction();

	virtual int16 getHeight();
	virtual int16 getWidth();
	virtual void setPalette(const byte *colors, uint start, uint num);
	virtual void grabPalette(byte *colors, uint start, uint num);
	virtual void copyRectToScreen(const byte *buf, int pitch, int x, int y, int w, int h);
	virtual Graphics::Surface *lockScreen();
	virtual void unlockScreen();
	virtual void fillScreen(uint32 col);
	virtual void updateScreen();
	virtual void setShakePos(int shakeOffset);
	virtual void setFocusRectangle(const Common::Rect& rect);
	virtual void clearFocusRectangle();

	virtual void showOverlay();
	virtual void hideOverlay();
	virtual Graphics::PixelFormat getOverlayFormat() const;
	virtual void clearOverlay();
	virtual void grabOverlay(OverlayColor *buf, int pitch);
	virtual void copyRectToOverlay(const OverlayColor *buf, int pitch, int x, int y, int w, int h);
	virtual int16 getOverlayHeight();
	virtual int16 getOverlayWidth();

	virtual bool showMouse(bool visible);
	virtual void warpMouse(int x, int y);
	virtual void setMouseCursor(const byte *buf, uint w, uint h, int hotspotX, int hotspotY, uint32 keycolor, int cursorTargetScale = 1, const Graphics::PixelFormat *format = NULL);
	virtual void setCursorPalette(const byte *colors, uint start, uint num);
	virtual void disableCursorPalette(bool disable);

	virtual Common::TimerManager *getTimerManager();
	virtual Common::EventManager *getEventManager();
	virtual Common::HardwareKeySet *getHardwareKeySet() { return 0; }

	virtual MutexRef createMutex();
	virtual void lockMutex(MutexRef mutex);
	virtual void unlockMutex(MutexRef mutex);
	virtual void deleteMutex(MutexRef mutex);

	virtual Audio::Mixer *getMixer();

	virtual AudioCDManager *getAudioCDManager();

	virtual void quit() { exit(0); }
	virtual void setWindowCaption(const char *caption) {}
	virtual void displayMessageOnOSD(const char *msg);
	virtual Common::SaveFileManager *getSavefileManager();
	virtual FilesystemFactory *getFilesystemFactory();

protected:
	FilesystemFactory *_fsFactory;
	Common::EventManager *_eventManager;
	Common::SaveFileManager *_savefileManager;
	Common::TimerManager *_timerManager;
	MutexManager *_mutexManager;
	GraphicsManager *_graphicsManager;
	Audio::Mixer *_mixer;
	AudioCDManager *_audiocdManager;
};


#endif