fceux/src/movie.h

#ifndef __MOVIE_H_
#define __MOVIE_H_

#include <vector>
#include <map>
#include <string>
#include <ostream>
#include <stdlib.h>

#include "input/zapper.h"
#include "utils/guid.h"

struct FCEUFILE;

enum EMOVIE_FLAG
{
	MOVIE_FLAG_NONE = 0,

	//an ARCHAIC flag which means the movie was recorded from a soft reset.
	//WHY would you do this?? do not create any new movies with this flag
	MOVIE_FLAG_FROM_RESET = (1<<1),
	
	MOVIE_FLAG_PAL = (1<<2),

	//movie was recorded from poweron. the alternative is from a savestate (or from reset)
	MOVIE_FLAG_FROM_POWERON = (1<<3),

	// set in newer version, used for old movie compatibility
	//TODO - only use this flag to print a warning that the sync might be bad
	//so that we can get rid of the sync hack code
	MOVIE_FLAG_NOSYNCHACK = (1<<4)
};

typedef struct
{
	int movie_version;					// version of the movie format in the file
	uint32 num_frames;
	uint32 rerecord_count;
	bool poweron, pal, nosynchack;
	bool reset; //mbg 6/21/08 - this flag isnt used anymore.. but maybe one day we can scan it out of the first record in the movie file
	uint32 emu_version_used;				// 9813 = 0.98.13
	MD5DATA md5_of_rom_used;
	std::string name_of_rom_used;

	std::vector<std::wstring> comments;
	std::vector<std::string> subtitles;
} MOVIE_INFO;


void FCEUMOV_AddInputState();
void FCEUMOV_AddCommand(int cmd);
void FCEU_DrawMovies(uint8 *);
void FCEU_DrawLagCounter(uint8 *);

enum EMOVIEMODE
{
	MOVIEMODE_INACTIVE = 1,
	MOVIEMODE_RECORD = 2,
	MOVIEMODE_PLAY = 4,
	MOVIEMODE_TASEDIT = 8
};

enum EMOVIECMD
{
	MOVIECMD_RESET = 1,
	MOVIECMD_POWER = 2,
};

EMOVIEMODE FCEUMOV_Mode();
bool FCEUMOV_Mode(EMOVIEMODE modemask);
bool FCEUMOV_Mode(int modemask);
inline bool FCEUMOV_IsPlaying() { return FCEUMOV_Mode(MOVIEMODE_PLAY); }
inline bool FCEUMOV_IsRecording() { return FCEUMOV_Mode(MOVIEMODE_RECORD); }

bool FCEUMOV_ShouldPause(void);
int FCEUMOV_GetFrame(void);
int FCEUI_GetLagCount(void);
bool FCEUI_GetLagged(void);

int FCEUMOV_WriteState(std::ostream* os);
bool FCEUMOV_ReadState(std::istream* is, uint32 size);
void FCEUMOV_PreLoad();
bool FCEUMOV_PostLoad();

void FCEUMOV_EnterTasEdit();
void FCEUMOV_ExitTasEdit();

class MovieData;
class MovieRecord
{

public:
	ValueArray<uint8,4> joysticks;
	
	struct {
		uint8 x,y,b,bogo;
		uint64 zaphit;
	} zappers[2];

	//misc commands like reset, etc.
	//small now to save space; we might need to support more commands later.
	//the disk format will support up to 64bit if necessary
	uint8 commands;
	bool command_reset() { return (commands&MOVIECMD_RESET)!=0; }
	bool command_power() { return (commands&MOVIECMD_POWER)!=0; }

	void toggleBit(int joy, int bit)
	{
		joysticks[joy] ^= mask(bit);
	}

	void setBit(int joy, int bit)
	{
		joysticks[joy] |= mask(bit);
	}

	void clearBit(int joy, int bit)
	{
		joysticks[joy] &= ~mask(bit);
	}

	void setBitValue(int joy, int bit, bool val)
	{
		if(val) setBit(joy,bit);
		else clearBit(joy,bit);
	}

	bool checkBit(int joy, int bit)
	{
		return (joysticks[joy] & mask(bit))!=0;
	}

	void clear();
	
	//a waste of memory in lots of cases..  maybe make it a pointer later?
	std::vector<char> savestate;

	void parse(MovieData* md, std::istream* is);
	bool parseBinary(MovieData* md, std::istream* is);
	void dump(MovieData* md, std::ostream* os, int index);
	void dumpBinary(MovieData* md, std::ostream* os, int index);
	void parseJoy(std::istream* is, uint8& joystate);
	void dumpJoy(std::ostream* os, uint8 joystate);
	
	static const char mnemonics[8];

private:
	int mask(int bit) { return 1<<bit; }
};

class MovieData
{
public:
	MovieData();
	

	int version;
	int emuVersion;
	//todo - somehow force mutual exclusion for poweron and reset (with an error in the parser)
	bool palFlag;
	MD5DATA romChecksum;
	std::string romFilename;
	std::vector<char> savestate;
	std::vector<MovieRecord> records;
	std::vector<std::wstring> comments;
	std::vector<std::string> subtitles;
	//this is the RERECORD COUNT. please rename variable.
	int rerecordCount;
	FCEU_Guid guid;

	//was the frame data stored in binary?
	bool binaryFlag;

	//which ports are defined for the movie
	int ports[3];
	//whether fourscore is enabled
	bool fourscore;
	
	//----TasEdit stuff---
	int greenZoneCount;
	//----

	int getNumRecords() { return records.size(); }

	class TDictionary : public std::map<std::string,std::string>
	{
	public:
		bool containsKey(std::string key)
		{
			return find(key) != end();
		}

		void tryInstallBool(std::string key, bool& val)
		{
			if(containsKey(key))
				val = atoi(operator [](key).c_str())!=0;
		}

		void tryInstallString(std::string key, std::string& val)
		{
			if(containsKey(key))
				val = operator [](key);
		}

		void tryInstallInt(std::string key, int& val)
		{
			if(containsKey(key))
				val = atoi(operator [](key).c_str());
		}

	};

	void truncateAt(int frame);
	void installValue(std::string& key, std::string& val);
	int dump(std::ostream* os, bool binary);
	void clearRecordRange(int start, int len);
	void insertEmpty(int at, int frames);
	
	static bool loadSavestateFrom(std::vector<char>* buf);
	static void dumpSavestateTo(std::vector<char>* buf, int compressionLevel);
	void TryDumpIncremental();

private:
	void installInt(std::string& val, int& var)
	{
		var = atoi(val.c_str());
	}

	void installBool(std::string& val, bool& var)
	{
		var = atoi(val.c_str())!=0;
	}
};

extern MovieData currMovieData;
extern int currFrameCounter;
extern char curMovieFilename[512];
extern bool subtitlesOnAVI;
extern bool freshMovie;
extern bool movie_readonly;
extern bool autoMovieBackup;
//--------------------------------------------------
bool CheckFileExists(const char* filename);	//Receives a filename (fullpath) and checks to see if that file exists
void FCEUI_MakeBackupMovie(bool dispMessage);
void FCEUI_CreateMovieFile(std::string fn);
void FCEUI_SaveMovie(const char *fname, EMOVIE_FLAG flags, std::wstring author);
bool FCEUI_LoadMovie(const char *fname, bool read_only, bool tasedit, int _stopframe);
void FCEUI_MoviePlayFromBeginning(void);
void FCEUI_StopMovie(void);
bool FCEUI_MovieGetInfo(FCEUFILE* fp, MOVIE_INFO& info, bool skipFrameCount = false);
char* FCEUI_MovieGetCurrentName(int addSlotNumber);
void FCEUI_MovieToggleReadOnly(void);
bool FCEUI_GetMovieToggleReadOnly();
void FCEUI_SetMovieToggleReadOnly(bool which);
int FCEUI_GetMovieLength();
int FCEUI_GetMovieRerecordCount();
std::string FCEUI_GetMovieName(void);
void FCEUI_MovieToggleFrameDisplay();
void FCEUI_ToggleInputDisplay(void);

void LoadSubtitles(MovieData);
void ProcessSubtitles(void);
void FCEU_DisplaySubtitles(char *format, ...);

#endif //__MOVIE_H_