restore some hw regs on exit to startup values

[libpicofe.git] / common / emu.h

// (c) Copyright 2006-2007 notaz, All rights reserved.
// Free for non-commercial use.

// For commercial use, separate licencing terms must be obtained.

#include "port_config.h"

#ifdef __cplusplus
extern "C" {
#endif

extern void *g_screen_ptr;

#if SCREEN_SIZE_FIXED
#define g_screen_width  SCREEN_WIDTH
#define g_screen_height SCREEN_HEIGHT
#else
extern int g_screen_width;
extern int g_screen_height;
#endif


#define EOPT_USE_SRAM     (1<<0)
#define EOPT_SHOW_FPS     (1<<1)
#define EOPT_EN_SOUND     (1<<2)
#define EOPT_GZIP_SAVES   (1<<3)
#define EOPT_MMUHACK      (1<<4)
#define EOPT_NO_AUTOSVCFG (1<<5)
#define EOPT_16BPP        (1<<7)
#define EOPT_RAM_TIMINGS  (1<<8)
#define EOPT_CONFIRM_SAVE (1<<9)
#define EOPT_EN_CD_LEDS   (1<<10)
#define EOPT_CONFIRM_LOAD (1<<11)
#define EOPT_A_SN_GAMMA   (1<<12)
#define EOPT_PSYNC        (1<<13)

enum {
	EOPT_SCALE_NONE = 0,
	EOPT_SCALE_SW_H,
	EOPT_SCALE_HW_H,
	EOPT_SCALE_HW_HV,
};

typedef struct _currentConfig_t {
	// char lastRomFile[512];
	int EmuOpt;		// LSb->MSb: use_sram, show_fps, enable_sound, gzip_saves,
					// mmuhack, no_save_cfg_on_exit, <unused>, 16_bit_mode
					// craigix_ram, confirm_save, show_cd_leds, confirm_load
					// A_SNs_gamma, perfect_vsync, giz_scanlines, giz_dblbuff
					// vsync_mode, show_clock, no_frame_limitter
	int s_PicoOpt;		// for old cfg files only
	int s_PsndRate;
	int s_PicoRegion;
	int s_PicoAutoRgnOrder;
	int s_PicoCDBuffers;
	int Frameskip;
	int CPUclock;
	int volume;
	int gamma;
	int scaling;  // gp2x: 0=center, 1=hscale, 2=hvscale, 3=hsoftscale; psp: bilinear filtering
	int rotation; // for UIQ
	float scale; // psp: screen scale
	float hscale32, hscale40; // psp: horizontal scale
	int gamma2;  // psp: black level
	int turbo_rate;
} currentConfig_t;

extern currentConfig_t currentConfig, defaultConfig;
extern char *PicoConfigFile;
extern int rom_loaded;
extern int state_slot;
extern int config_slot, config_slot_current;
extern unsigned char *movie_data;
extern int pico_inp_mode;

extern char rom_fname_reload[512];		// ROM to try loading on next PGS_ReloadRom
extern char rom_fname_loaded[512];		// currently loaded ROM filename

// engine states
extern int engineState;
enum TPicoGameState {
	PGS_Paused = 1,
	PGS_Running,
	PGS_Quit,
	PGS_KeyConfig,
	PGS_ReloadRom,
	PGS_Menu,
	PGS_RestartRun,
	PGS_Suspending,		/* PSP */
	PGS_SuspendWake,	/* PSP */
};


int   emu_ReloadRom(char *rom_fname);
int   emu_SaveLoadGame(int load, int sram);

int   emu_ReadConfig(int game, int no_defaults);
int   emu_WriteConfig(int game);
void  emu_packConfig(void);
void  emu_unpackConfig(void);
void  emu_writelrom(void);

char *emu_GetSaveFName(int load, int is_sram, int slot);
int   emu_checkSaveFile(int slot);
void  emu_setSaveStateCbs(int gz);

void  emu_update_input(void);
int   emu_findBios(int region, char **bios_file);
void  emu_textOut8 (int x, int y, const char *text);
void  emu_textOut16(int x, int y, const char *text);
char *emu_makeRomId(void);
void  emu_getGameName(char *str150);
void  emu_changeFastForward(int set_on);
void  emu_RunEventsPico(unsigned int events);
void  emu_shutdownMCD(void);
int   emu_cdCheck(int *pregion, char *fname_in);

#ifdef __cplusplus
} // extern "C"
#endif