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osystem_ds.h

/* 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */
 
 
#ifndef _OSYSTEM_DS_H_
#define _OSYSTEM_DS_H_
#include "common/system.h"
#include "common/events.h"
#include "nds.h"
#include "ramsave.h"
#include "gbampsave.h"
#include "backends/saves/default/default-saves.h"
#include "backends/timer/default/default-timer.h"
#include "sound/mixer.h"
#include "graphics/surface.h"

class DSAudioMixer : public Audio::Mixer {      
};

class DSTimerManager : public DefaultTimerManager {   
};


class OSystem_DS : public OSystem {
protected:

      int eventNum;
      int lastPenFrame;
      
      Common::Event eventQueue[96];
      int queuePos;
      
      DSSaveFileManager saveManager;
      GBAMPSaveFileManager mpSaveManager;
      DSAudioMixer* _mixer;
      DSTimerManager* _timer;
      Graphics::Surface _framebuffer;
      bool _frameBufferExists;


      static OSystem_DS* _instance;
      
      Graphics::Surface* createTempFrameBuffer();

public:
      typedef void (*SoundProc)(void *param, byte *buf, int len);
      typedef int  (*TimerProc)(int interval);

      OSystem_DS();
      virtual ~OSystem_DS();

      static OSystem_DS *instance() { return _instance; }

      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);
      bool setGraphicsMode(const char *name);
      virtual int getGraphicsMode() const;
      virtual void initSize(uint width, uint height);
      virtual int16 getHeight();
      virtual int16 getWidth();
      virtual void setPalette(const byte *colors, uint start, uint num);
      virtual void grabPalette(unsigned char* colors, uint start, uint num);

      virtual void copyRectToScreen(const byte *buf, int pitch, int x, int y, int w, int h);
      virtual void updateScreen();
      virtual void setShakePos(int shakeOffset);

      virtual void showOverlay();
      virtual void hideOverlay();
      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();

      inline virtual OverlayColor RGBToColor(uint8 r, uint8 g, uint8 b);
      inline virtual void colorToRGB(OverlayColor color, uint8 &r, uint8 &g, uint8 &b);
      
      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, byte keycolor = 255, int targetCursorScale = 1);

      virtual bool pollEvent(Common::Event &event);
      virtual uint32 getMillis();
      virtual void delayMillis(uint msecs);

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

      virtual void clearSoundCallback();
      virtual int getOutputSampleRate() const;

      virtual bool openCD(int drive);
      virtual bool pollCD();

      virtual void playCD(int track, int num_loops, int start_frame, int duration);
      virtual void stopCD();
      virtual void updateCD();

      virtual void quit();

      virtual void setWindowCaption(const char *caption);

      virtual void displayMessageOnOSD(const char *msg);

      virtual Common::SaveFileManager *getSavefileManager();
      
      void addEvent(Common::Event& e);
      bool isEventQueueEmpty() { return queuePos == 0; }
      
      virtual bool grabRawScreen(Graphics::Surface* surf);
      
      virtual void setFocusRectangle(const Common::Rect& rect);
      
      virtual void clearFocusRectangle();
      
      virtual void initBackend();
      
      virtual Graphics::Surface *lockScreen();
      virtual void unlockScreen();
      
      virtual Audio::Mixer* getMixer() { return _mixer; }
      virtual Common::TimerManager* getTimerManager() { return _timer; }
      static int timerHandler(int t);


      virtual void addAutoComplete(const char *word);
      virtual void clearAutoComplete();
      virtual void setCharactersEntered(int count);



};

static const OSystem::GraphicsMode s_supportedGraphicsModes[] = {
      {0, 0, 0},
};

OverlayColor OSystem_DS::RGBToColor(uint8 r, uint8 g, uint8 b)
{
      return 0x8000 | (r >> 3) | ((g >> 3) << 5) | ((b >> 3) << 10);
      //consolePrintf("rgbtocol\n");
      //return 0;
}

void OSystem_DS::colorToRGB(OverlayColor color, uint8 &r, uint8 &g, uint8 &b)
{
      r = (color & 0x001F) << 3;
      g = ((color & 0x03E0) >> 5) << 3;
      b = ((color & 0x7C00) >> 10) << 3;
      //consolePrintf("coltorgb\n");
}

#endif

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