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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.
*
*/
#ifndef BACKENDS_MODULAR_BACKEND_H
#define BACKENDS_MODULAR_BACKEND_H
#include "common/system.h"
#include "common/timer.h"
#include "common/savefile.h"
class GraphicsManager;
class MutexManager;
/**
* Base class for modular backends.
*
* It wraps most functions to their manager equivalent, but not
* all OSystem functions are implemented here.
*
* A backend derivated from this class, will need to implement
* these functions on its own:
* OSystem::pollEvent()
* OSystem::createConfigReadStream()
* OSystem::createConfigWriteStream()
* OSystem::getMillis()
* OSystem::delayMillis()
* OSystem::getTimeAndDate()
*
* And, it should also initialize all the managers variables
* declared in this class, or override their related functions.
*/
class ModularBackend : public OSystem {
public:
ModularBackend();
virtual ~ModularBackend();
/** @name Features */
//@{
virtual bool hasFeature(Feature f);
virtual void setFeatureState(Feature f, bool enable);
virtual bool getFeatureState(Feature f);
//@}
/** @name Graphics */
//@{
virtual GraphicsManager *getGraphicsManager();
virtual const GraphicsMode *getSupportedGraphicsModes() const;
virtual int getDefaultGraphicsMode() const;
virtual bool setGraphicsMode(int mode);
virtual int getGraphicsMode() const;
virtual void resetGraphicsScale();
#ifdef USE_RGB_COLOR
virtual Graphics::PixelFormat getScreenFormat() const;
virtual Common::List<Graphics::PixelFormat> getSupportedFormats() const;
#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 PaletteManager *getPaletteManager();
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);
//@}
/** @name Events and Time */
//@{
virtual Common::TimerManager *getTimerManager();
virtual Common::EventManager *getEventManager();
virtual Common::HardwareKeySet *getHardwareKeySet() { return 0; }
//@}
/** @name Mutex handling */
//@{
virtual MutexRef createMutex();
virtual void lockMutex(MutexRef mutex);
virtual void unlockMutex(MutexRef mutex);
virtual void deleteMutex(MutexRef mutex);
//@}
/** @name Sound */
//@{
virtual Audio::Mixer *getMixer();
//@}
/** @name Audio CD */
//@{
virtual AudioCDManager *getAudioCDManager();
//@}
/** @name Miscellaneous */
//@{
virtual Common::SaveFileManager *getSavefileManager();
virtual FilesystemFactory *getFilesystemFactory();
virtual void quit() { exit(0); }
virtual void setWindowCaption(const char *caption) {}
virtual void displayMessageOnOSD(const char *msg);
//@}
protected:
/** @name Managers variables */
//@{
FilesystemFactory *_fsFactory;
Common::EventManager *_eventManager;
Common::SaveFileManager *_savefileManager;
Common::TimerManager *_timerManager;
MutexManager *_mutexManager;
GraphicsManager *_graphicsManager;
Audio::Mixer *_mixer;
AudioCDManager *_audiocdManager;
//@}
};
#endif
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