/* * PicoDrive * (c) Copyright Dave, 2004 * (C) notaz, 2006-2010 * * This work is licensed under the terms of MAME license. * See COPYING file in the top-level directory. */ #ifndef PICO_H #define PICO_H #include // [u]int_t #include // size_t #ifdef __cplusplus extern "C" { #endif // message log extern void lprintf(const char *fmt, ...); // external funcs for Sega/Mega CD extern int mp3_get_bitrate(void *f, int size); extern void mp3_start_play(void *f, int pos); extern void mp3_update(int *buffer, int length, int stereo); // this function should write-back d-cache and invalidate i-cache // on a mem region [start_addr, end_addr) // used by dynarecs extern void cache_flush_d_inval_i(void *start_addr, void *end_addr); // attempt to alloc mem at specified address. // alloc anywhere else if that fails (callers should handle that) extern void *plat_mmap(unsigned long addr, size_t size, int need_exec, int is_fixed); extern void *plat_mremap(void *ptr, size_t oldsize, size_t newsize); extern void plat_munmap(void *ptr, size_t size); // memory for the dynarec; plat_mem_get_for_drc() can just return NULL extern void *plat_mem_get_for_drc(size_t size); extern int plat_mem_set_exec(void *ptr, size_t size); // this one should handle display mode changes extern void emu_video_mode_change(int start_line, int line_count, int start_col, int col_count); // this must switch to 16bpp mode extern void emu_32x_startup(void); // optional 32X BIOS, should be left NULL if not used // must be 256, 2048, 1024 bytes extern void *p32x_bios_g, *p32x_bios_m, *p32x_bios_s; // Pico.c #define POPT_EN_FM (1<< 0) // 00 000x #define POPT_EN_PSG (1<< 1) #define POPT_EN_Z80 (1<< 2) #define POPT_EN_STEREO (1<< 3) #define POPT_ALT_RENDERER (1<< 4) // 00 00x0 #define POPT_EN_YM2413 (1<< 5) #define POPT_EN_SNDFILTER (1<< 6) #define POPT_ACC_SPRITES (1<< 7) #define POPT_DIS_32C_BORDER (1<< 8) // 00 0x00 #define POPT_EXT_FM (1<< 9) #define POPT_EN_MCD_PCM (1<<10) #define POPT_EN_MCD_CDDA (1<<11) #define POPT_EN_MCD_GFX (1<<12) // 00 x000 #define POPT_EN_GG_LCD (1<<13) #define POPT_EN_SOFTSCALE (1<<14) #define POPT_EN_MCD_RAMCART (1<<15) #define POPT_DIS_VDP_FIFO (1<<16) // 0x 0000 #define POPT_EN_DRC (1<<17) #define POPT_DIS_SPRITE_LIM (1<<18) #define POPT_DIS_IDLE_DET (1<<19) #define POPT_EN_32X (1<<20) // x0 0000 #define POPT_EN_PWM (1<<21) #define POPT_PWM_IRQ_OPT (1<<22) #define POPT_DIS_FM_SSGEG (1<<23) #define PAHW_MCD (1<<0) #define PAHW_32X (1<<1) #define PAHW_SVP (1<<2) #define PAHW_PICO (1<<3) #define PAHW_SMS (1<<4) #define PQUIRK_FORCE_6BTN (1<<0) // the emulator is configured and some status is reported // through this global state (not saved in savestates) typedef struct PicoInterface { unsigned int opt; // POPT_* bitfield unsigned short pad[2]; // Joypads, format is MXYZ SACB RLDU unsigned short padInt[2]; // internal copy unsigned short AHW; // active addon hardware: PAHW_* bitfield unsigned short skipFrame; // skip rendering frame, but still do sound (if enabled) and emulation stuff unsigned short regionOverride; // override the region detection 0: auto, 1: Japan NTSC, 2: Japan PAL, 4: US, 8: Europe unsigned short autoRgnOrder; // packed priority list of regions, for example 0x148 means this detection order: EUR, USA, JAP unsigned short quirks; // game-specific quirks: PQUIRK_* unsigned short overclockM68k; // overclock the emulated 68k, in % unsigned short filter; // softscale filter type int sndRate; // rate in Hz int sndFilterAlpha; // Low pass sound filter alpha (Q16) short *sndOut; // PCM output buffer void (*writeSound)(int len); // write .sndOut callback, called once per frame void (*osdMessage)(const char *msg); // output OSD message from emu, optional void (*mcdTrayOpen)(void); void (*mcdTrayClose)(void); } PicoInterface; extern PicoInterface PicoIn; void PicoInit(void); void PicoExit(void); void PicoPower(void); int PicoReset(void); void PicoLoopPrepare(void); void PicoFrame(void); void PicoFrameDrawOnly(void); typedef enum { PI_ROM, PI_ISPAL, PI_IS40_CELL, PI_IS240_LINES } pint_t; typedef union { int vint; void *vptr; } pint_ret_t; void PicoGetInternal(pint_t which, pint_ret_t *ret); struct PicoEState; // pico.c #define XPCM_BUFFER_SIZE (320+160) typedef struct { int pen_pos[2]; int page; // internal int fifo_bytes; // bytes in FIFO int fifo_bytes_prev; int fifo_line_bytes; // float part, << 16 int line_counter; unsigned short r1, r12; unsigned char xpcm_buffer[XPCM_BUFFER_SIZE+4]; unsigned char *xpcm_ptr; } picohw_state; extern picohw_state PicoPicohw; // area.c int PicoState(const char *fname, int is_save); int PicoStateLoadGfx(const char *fname); void *PicoTmpStateSave(void); void PicoTmpStateRestore(void *data); extern void (*PicoStateProgressCB)(const char *str); // cd/cdd.c int cdd_load(const char *filename, int type); int cdd_unload(void); // Cart.c typedef enum { PMT_UNCOMPRESSED = 0, PMT_ZIP, PMT_CSO, PMT_CHD } pm_type; typedef struct { void *file; /* file handle */ void *param; /* additional file related field */ unsigned int size; /* size */ pm_type type; char ext[4]; } pm_file; pm_file *pm_open(const char *path); void pm_sectorsize(int length, pm_file *stream); size_t pm_read(void *ptr, size_t bytes, pm_file *stream); size_t pm_read_audio(void *ptr, size_t bytes, pm_file *stream); int pm_seek(pm_file *stream, long offset, int whence); int pm_close(pm_file *fp); int PicoCartLoad(pm_file *f,unsigned char **prom,unsigned int *psize,int is_sms); int PicoCartInsert(unsigned char *rom, unsigned int romsize, const char *carthw_cfg); void PicoCartUnload(void); extern void (*PicoCartLoadProgressCB)(int percent); extern void (*PicoCDLoadProgressCB)(const char *fname, int percent); extern int PicoGameLoaded; // Draw.c // for line-based renderer, set conversion // from internal 8 bit representation in 'HighCol' to: typedef enum { PDF_NONE = 0, // no conversion PDF_RGB555, // RGB/BGR output, depends on compile options PDF_8BIT, // 8-bit out (handles shadow/hilight mode, sonic water) } pdso_t; void PicoDrawSetOutFormat(pdso_t which, int use_32x_line_mode); void PicoDrawSetOutBuf(void *dest, int increment); void PicoDrawSetCallbacks(int (*begin)(unsigned int num), int (*end)(unsigned int num)); // utility #ifdef _ASM_DRAW_C void vidConvCpyRGB565(void *to, void *from, int pixels); #endif void PicoDoHighPal555(int sh, int line, struct PicoEState *est); // internals, NB must keep in sync with ASM draw functions #define PDRAW_SPRITES_MOVED (1<<0) // SAT address modified #define PDRAW_WND_DIFF_PRIO (1<<1) // not all window tiles use same priority #define PDRAW_PARSE_SPRITES (1<<2) // SAT needs parsing #define PDRAW_INTERLACE (1<<3) #define PDRAW_DIRTY_SPRITES (1<<4) // SAT modified #define PDRAW_SONIC_MODE (1<<5) // mid-frame palette changes for 8bit renderer #define PDRAW_PLANE_HI_PRIO (1<<6) // have layer with all hi prio tiles (mk3) #define PDRAW_SHHI_DONE (1<<7) // layer sh/hi already processed #define PDRAW_32_COLS (1<<8) // 32 columns mode #define PDRAW_BORDER_32 (1<<9) // center H32 in buffer (32 px border) #define PDRAW_SKIP_FRAME (1<<10) // frame is skipped #define PDRAW_30_ROWS (1<<11) // 30 rows mode (240 lines) extern int rendstatus_old; extern int rendlines; // draw.c void PicoDrawUpdateHighPal(void); void PicoDrawSetInternalBuf(void *dest, int line_increment); // draw2.c // stuff below is optional extern unsigned short *PicoCramHigh; // pointer to CRAM buff (0x40 shorts), converted to native device color (works only with 16bit for now) extern void (*PicoPrepareCram)(); // prepares PicoCramHigh for renderer to use // pico.c (32x) #ifndef NO_32X void Pico32xSetClocks(int msh2_hz, int ssh2_hz); #else #define Pico32xSetClocks(msh2_khz, ssh2_khz) #endif // normally 68k clock (7670442) * 3, in reality but much lower // because of high memory latencies #define PICO_MSH2_HZ ((int)(7670442.0 * 2.4)) #define PICO_SSH2_HZ ((int)(7670442.0 * 2.4)) // sound.c extern void (*PsndMix_32_to_16l)(short *dest, int *src, int count); void PsndRerate(int preserve_state); // media.c enum media_type_e { PM_BAD_DETECT = -1, PM_ERROR = -2, PM_BAD_CD = -3, PM_BAD_CD_NO_BIOS = -4, PM_MD_CART = 1, /* also 32x */ PM_MARK3, PM_CD, }; enum cd_track_type { CT_UNKNOWN = 0, // data tracks CT_ISO = 1, /* 2048 B/sector */ CT_BIN = 2, /* 2352 B/sector */ // audio tracks CT_MP3 = 3, CT_WAV = 4, CT_CHD = 5, }; typedef struct { char *fname; int pregap; /* pregap for current track */ int sector_offset; /* in current file */ int sector_xlength; enum cd_track_type type; } cd_track_t; typedef struct { int track_count; cd_track_t tracks[0]; } cd_data_t; enum media_type_e PicoLoadMedia(const char *filename, const char *carthw_cfg_fname, const char *(*get_bios_filename)(int *region, const char *cd_fname), void (*do_region_override)(const char *media_filename)); int PicoCdCheck(const char *fname_in, int *pregion); extern unsigned char media_id_header[0x100]; // memory.c enum input_device { PICO_INPUT_NOTHING, PICO_INPUT_PAD_3BTN, PICO_INPUT_PAD_6BTN, }; void PicoSetInputDevice(int port, enum input_device device); #ifdef __cplusplus } // End of extern "C" #endif #endif // PICO_H