/* * 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 // size_t // port-specific compile-time settings #include #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); 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 is_32cols); // 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_6BTN_PAD (1<< 5) // unused (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_MCD_PSYNC (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_SVP_DRC (1<<17) #define POPT_DIS_SPRITE_LIM (1<<18) #define POPT_DIS_IDLE_DET (1<<19) #define POPT_EN_32X (1<<20) #define POPT_EN_PWM (1<<21) extern int PicoOpt; // bitfield #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) extern int PicoAHW; // Pico active hw extern int PicoSkipFrame; // skip rendering frame, but still do sound (if enabled) and emulation stuff extern int PicoRegionOverride; // override the region detection 0: auto, 1: Japan NTSC, 2: Japan PAL, 4: US, 8: Europe extern int PicoAutoRgnOrder; // packed priority list of regions, for example 0x148 means this detection order: EUR, USA, JAP extern int PicoSVPCycles; void PicoInit(void); void PicoExit(void); void PicoPower(void); int PicoReset(void); void PicoLoopPrepare(void); void PicoFrame(void); void PicoFrameDrawOnly(void); extern int PicoPad[2]; // Joypads, format is MXYZ SACB RLDU extern void (*PicoWriteSound)(int bytes); // called once per frame at the best time to send sound buffer (PsndOut) to hardware extern void (*PicoMessage)(const char *msg); // callback to output text message from emu 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); // cd/Pico.c extern void (*PicoMCDopenTray)(void); extern void (*PicoMCDcloseTray)(void); extern int PicoCDBuffers; // 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/buffering.c void PicoCDBufferInit(void); void PicoCDBufferFree(void); void PicoCDBufferFlush(void); // cd/cd_sys.c int Insert_CD(const char *cdimg_name, int type); void Stop_CD(void); // releases all resources taken when CD game was started. // Cart.c typedef enum { PMT_UNCOMPRESSED = 0, PMT_ZIP, PMT_CSO } 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); size_t pm_read(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 allow_32x); void PicoDrawSetOutBuf(void *dest, int increment); void PicoDrawSetCallbacks(int (*begin)(unsigned int num), int (*end)(unsigned int num)); extern void *DrawLineDest; extern unsigned char *HighCol; // utility #ifdef _ASM_DRAW_C void vidConvCpyRGB565(void *to, void *from, int pixels); #endif void PicoDoHighPal555(int sh); extern int PicoDrawMask; #define PDRAW_LAYERB_ON (1<<2) #define PDRAW_LAYERA_ON (1<<3) #define PDRAW_SPRITES_LOW_ON (1<<4) #define PDRAW_SPRITES_HI_ON (1<<7) #define PDRAW_32X_ON (1<<8) // internals #define PDRAW_SPRITES_MOVED (1<<0) // (asm) #define PDRAW_WND_DIFF_PRIO (1<<1) // not all window tiles use same priority #define PDRAW_SPR_LO_ON_HI (1<<2) // seen sprites without layer pri bit ontop spr. with that bit #define PDRAW_INTERLACE (1<<3) #define PDRAW_DIRTY_SPRITES (1<<4) // (asm) #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 column mode extern int rendstatus, rendstatus_old; extern int rendlines; extern unsigned short HighPal[0x100]; // draw.c void PicoDrawUpdateHighPal(void); void PicoDrawSetInternalBuf(void *dest, int line_increment); // draw2.c // stuff below is optional extern unsigned char *PicoDraw2FB; // buffer for fast renderer in format (8+320)x(8+224+8) (eights for borders) 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) // multipliers against 68k clock (7670442) // normally * 3, but effectively slower due to high latencies everywhere // however using something lower breaks MK2 animations extern int p32x_msh2_multiplier; extern int p32x_ssh2_multiplier; #define SH2_MULTI_SHIFT 10 #define MSH2_MULTI_DEFAULT ((1 << SH2_MULTI_SHIFT) * 3) #define SSH2_MULTI_DEFAULT ((1 << SH2_MULTI_SHIFT) * 3) // 32x/draw.c void PicoDraw32xSetFrameMode(int is_on, int only_32x); // sound.c extern int PsndRate,PsndLen; extern short *PsndOut; 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 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]; #ifdef __cplusplus } // End of extern "C" #endif #endif // PICO_H