#ifndef SYSTEM_H
#define SYSTEM_H
#include "common/Types.h"
#include <zlib.h>

class SoundDriver;

struct EmulatedSystem {
   // main emulation function
   void (*emuMain)(int);
   // reset emulator
   void (*emuReset)();
   // clean up memory
   void (*emuCleanUp)();
   // load battery file
   bool (*emuReadBattery)(const char *);
   // write battery file
   bool (*emuWriteBattery)(const char *);
#ifdef __LIBRETRO__
   // load state
   bool (*emuReadState)(const u8*, unsigned);
   // load state
   unsigned (*emuWriteState)(u8*, unsigned);
#else
   // load state
   bool (*emuReadState)(const char *);
   // save state
   bool (*emuWriteState)(const char *);
#endif
   // load memory state (rewind)
   bool (*emuReadMemState)(char *, int);
   // write memory state (rewind)
   bool (*emuWriteMemState)(char *, int);
   // write PNG file
   bool (*emuWritePNG)(const char *);
   // write BMP file
   bool (*emuWriteBMP)(const char *);
   // emulator update CPSR (ARM only)
   void (*emuUpdateCPSR)();
   // emulator has debugger
   bool emuHasDebugger;
   // clock ticks to emulate
   int emuCount;
};

extern void log(const char *,...);
extern bool systemPauseOnFrame();
extern void systemGbPrint(u8 *,int,int,int,int,int);
extern void systemScreenCapture(int);
extern void systemDrawScreen();
// updates the joystick data
extern bool systemReadJoypads();
// return information about the given joystick, -1 for default joystick
extern u32 systemReadJoypad(int);
extern u32 systemGetClock();
extern void systemMessage(int, const char *, ...);
extern void systemSetTitle(const char *);
extern SoundDriver * systemSoundInit();
extern void systemOnWriteDataToSoundBuffer(const u16 * finalWave, int length);
extern void systemOnSoundShutdown();
extern void systemScreenMessage(const char *);
extern void systemUpdateMotionSensor();
extern int systemGetSensorX();
extern int systemGetSensorY();
extern bool systemCanChangeSoundQuality();
extern void systemShowSpeed(int);
extern void system10Frames(int);
extern void systemFrame();
extern void systemGbBorderOn();
extern void Sm60FPS_Init();
extern bool Sm60FPS_CanSkipFrame();
extern void Sm60FPS_Sleep();
extern void DbgMsg(const char *msg, ...);
#ifdef SDL
#define winlog log
#else
extern void winlog(const char *,...);
#endif
extern void (*dbgOutput)(const char *s, u32 addr);
extern void (*dbgSignal)(int sig,int number);
extern u16 systemColorMap16[0x10000];
extern u32 systemColorMap32[0x10000];
extern u16 systemGbPalette[24];
extern int systemRedShift;
extern int systemGreenShift;
extern int systemBlueShift;
extern int systemColorDepth;
extern int systemDebug;
extern int systemVerbose;
extern int systemFrameSkip;
extern int systemSaveUpdateCounter;
extern int systemSpeed;
#define SYSTEM_SAVE_UPDATED 30
#define SYSTEM_SAVE_NOT_UPDATED 0
#endif // SYSTEM_H 
