minor adjustments

[picodrive.git] / Pico / Pico.h

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// -------------------- Pico Library --------------------\r
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// Pico Library - Header File\r
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// (c) Copyright 2004 Dave, All rights reserved.\r
// (c) Copyright 2006-2008 notaz, All rights reserved.\r
// Free for non-commercial use.\r
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// For commercial use, separate licencing terms must be obtained.\r
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#ifndef PICO_H\r
#define PICO_H\r
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#include <stdio.h>\r
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// port-specific compile-time settings\r
#include <port_config.h>\r
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#ifdef __cplusplus\r
extern "C" {\r
#endif\r
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// external funcs for Sega/Mega CD\r
int  mp3_get_bitrate(FILE *f, int size);\r
void mp3_start_play(FILE *f, int pos);\r
void mp3_update(int *buffer, int length, int stereo);\r
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// Pico.c\r
#define POPT_EN_FM          (1<< 0) // 00 000x\r
#define POPT_EN_PSG         (1<< 1)\r
#define POPT_EN_Z80         (1<< 2)\r
#define POPT_EN_STEREO      (1<< 3)\r
#define POPT_ALT_RENDERER   (1<< 4) // 00 00x0\r
#define POPT_6BTN_PAD       (1<< 5)\r
#define POPT_ACC_TIMING     (1<< 6)\r
#define POPT_ACC_SPRITES    (1<< 7)\r
#define POPT_DIS_32C_BORDER (1<< 8) // 00 0x00\r
#define POPT_EXT_FM         (1<< 9)\r
#define POPT_EN_MCD_PCM     (1<<10)\r
#define POPT_EN_MCD_CDDA    (1<<11)\r
#define POPT_EN_MCD_GFX     (1<<12) // 00 x000\r
#define POPT_EN_MCD_PSYNC   (1<<13)\r
#define POPT_EN_SOFTSCALE   (1<<14)\r
#define POPT_EN_MCD_RAMCART (1<<15)\r
#define POPT_DIS_VDP_FIFO   (1<<16) // 0x 0000\r
#define POPT_EN_SVP_DRC     (1<<17)\r
#define POPT_DIS_SPRITE_LIM (1<<18)\r
extern int PicoOpt; // bitfield\r
#define PAHW_MCD  (1<<0)\r
#define PAHW_32X  (1<<1)\r
#define PAHW_SVP  (1<<2)\r
#define PAHW_PICO (1<<3)\r
extern int PicoAHW;            // Pico active hw\r
extern int PicoVer;\r
extern int PicoSkipFrame;      // skip rendering frame, but still do sound (if enabled) and emulation stuff\r
extern int PicoRegionOverride; // override the region detection 0: auto, 1: Japan NTSC, 2: Japan PAL, 4: US, 8: Europe\r
extern int PicoAutoRgnOrder;   // packed priority list of regions, for example 0x148 means this detection order: EUR, USA, JAP\r
extern int PicoSVPCycles;\r
int  PicoInit(void);\r
void PicoExit(void);\r
void PicoPower(void);\r
int  PicoReset(void);\r
int  PicoFrame(void);\r
void PicoFrameDrawOnly(void);\r
extern int PicoPad[2]; // Joypads, format is MXYZ SACB RLDU\r
extern void (*PicoWriteSound)(int len); // called once per frame at the best time to send sound buffer (PsndOut) to hardware\r
extern void (*PicoMessage)(const char *msg); // callback to output text message from emu\r
typedef enum { PS_PAL, PS_40_CELL, PS_240_LINES } pstat_t;\r
int  PicoGetStat(pstat_t which);\r
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// cd/Pico.c\r
extern void (*PicoMCDopenTray)(void);\r
extern int  (*PicoMCDcloseTray)(void);\r
extern int PicoCDBuffers;\r
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// Pico/Pico.c\r
#define XPCM_BUFFER_SIZE (320+160)\r
typedef struct\r
{\r
	int pen_pos[2];\r
	int page;\r
	// internal\r
	int fifo_bytes;      // bytes in FIFO\r
	int fifo_bytes_prev;\r
	int fifo_line_bytes; // float part, << 16\r
	int line_counter;\r
	unsigned short r1, r12;\r
	unsigned char xpcm_buffer[XPCM_BUFFER_SIZE+4];\r
	unsigned char *xpcm_ptr;\r
} picohw_state;\r
extern picohw_state PicoPicohw;\r
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// Area.c\r
typedef size_t (arearw)(void *p, size_t _size, size_t _n, void *file);\r
typedef size_t (areaeof)(void *file);\r
typedef int    (areaseek)(void *file, long offset, int whence);\r
typedef int    (areaclose)(void *file);\r
// Save or load the state from PmovFile:\r
int PmovState(int PmovAction, void *PmovFile); // &1=for reading &2=for writing &4=volatile &8=non-volatile\r
extern arearw  *areaRead;  // external read and write function pointers for\r
extern arearw  *areaWrite; // gzip save state ability\r
extern areaeof *areaEof;\r
extern areaseek *areaSeek;\r
extern areaclose *areaClose;\r
extern void (*PicoStateProgressCB)(const char *str);\r
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// cd/Area.c\r
int PicoCdLoadStateGfx(void *file);\r
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// cd/buffering.c\r
void PicoCDBufferInit(void);\r
void PicoCDBufferFree(void);\r
void PicoCDBufferFlush(void);\r
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// cd/cd_sys.c\r
int Insert_CD(char *iso_name, int is_bin);\r
int Insert_CD(char *cdimg_name, int type);\r
void Stop_CD(void); // releases all resources taken when CD game was started.\r
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// Cart.c\r
typedef enum\r
{\r
	PMT_UNCOMPRESSED = 0,\r
	PMT_ZIP,\r
	PMT_CSO\r
} pm_type;\r
typedef struct\r
{\r
	void *file;		/* file handle */\r
	void *param;		/* additional file related field */\r
	unsigned int size;	/* size */\r
	pm_type type;\r
} pm_file;\r
pm_file *pm_open(const char *path);\r
size_t   pm_read(void *ptr, size_t bytes, pm_file *stream);\r
int      pm_seek(pm_file *stream, long offset, int whence);\r
int      pm_close(pm_file *fp);\r
int PicoCartLoad(pm_file *f,unsigned char **prom,unsigned int *psize);\r
int PicoCartInsert(unsigned char *rom,unsigned int romsize);\r
void Byteswap(unsigned char *data,int len);\r
int PicoCartUnload(void);\r
extern void (*PicoCartLoadProgressCB)(int percent);\r
extern void (*PicoCDLoadProgressCB)(int percent);\r
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// Draw.c\r
void PicoDrawSetColorFormat(int which); // 0=BGR444, 1=RGB555, 2=8bit(HighPal pal)\r
extern void *DrawLineDest;\r
#if OVERRIDE_HIGHCOL\r
extern unsigned char *HighCol;\r
#endif\r
extern int (*PicoScanBegin)(unsigned int num);\r
extern int (*PicoScanEnd)(unsigned int num);\r
// utility\r
#ifdef _ASM_DRAW_C\r
void vidConvCpyRGB565(void *to, void *from, int pixels);\r
#endif\r
// internals\r
#define PDRAW_SPRITES_MOVED (1<<0)\r
#define PDRAW_WND_DIFF_PRIO (1<<1) // not all window tiles use same priority\r
#define PDRAW_ACC_SPRITES   (1<<2) // accurate sprites (copied from PicoOpt)\r
#define PDRAW_INTERLACE     (1<<3) //\r
#define PDRAW_DIRTY_SPRITES (1<<4)\r
#define PDRAW_SONIC_MODE    (1<<5) // mid-frame palette changes for 8bit renderer\r
#define PDRAW_PLANE_HI_PRIO (1<<6) // have layer with all hi prio tiles (mk3)\r
#define PDRAW_SHHI_DONE     (1<<7) // layer sh/hi already processed\r
#define PDRAW_EARLY_BLANK   (1<<8) // blanking enabled at the start of prev line\r
extern int rendstatus;\r
extern unsigned short HighPal[0x100];\r
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// Draw2.c\r
// stuff below is optional\r
extern unsigned char  *PicoDraw2FB;  // buffer for fast renderer in format (8+320)x(8+224+8) (eights for borders)\r
extern unsigned short *PicoCramHigh; // pointer to CRAM buff (0x40 shorts), converted to native device color (works only with 16bit for now)\r
extern void (*PicoPrepareCram)();    // prepares PicoCramHigh for renderer to use\r
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// sound.c\r
extern int PsndRate,PsndLen;\r
extern short *PsndOut;\r
extern void (*PsndMix_32_to_16l)(short *dest, int *src, int count);\r
void PsndRerate(int preserve_state);\r
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// Utils.c\r
extern int PicuAnd;\r
int PicuQuick(unsigned short *dest,unsigned short *src);\r
int PicuShrink(unsigned short *dest,int destLen,unsigned short *src,int srcLen);\r
int PicuShrinkReverse(unsigned short *dest,int destLen,unsigned short *src,int srcLen);\r
int PicuMerge(unsigned short *dest,int destLen,unsigned short *src,int srcLen);\r
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#ifdef __cplusplus\r
} // End of extern "C"\r
#endif\r
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#endif // PICO_H\r