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- // -------------------- Pico Library --------------------
- // Pico Library - Header File
- // (c) Copyright 2004 Dave, All rights reserved.
- // (c) Copyright 2006 notaz, All rights reserved.
- // Free for non-commercial use.
- // For commercial use, separate licencing terms must be obtained.
- #ifndef PICO_H
- #define PICO_H
- // port-specific compile-time settings
- #include <port_config.h>
- #ifdef __cplusplus
- extern "C" {
- #endif
- // external funcs for Sega/Mega CD
- int mp3_get_bitrate(FILE *f, int size);
- void mp3_start_play(FILE *f, int pos);
- int mp3_get_offset(void); // 0-1023
- void mp3_update(int *buffer, int length, int stereo);
- // Pico.c
- // PicoOpt bits LSb->MSb:
- // enable_ym2612&dac, enable_sn76496, enable_z80, stereo_sound,
- // alt_renderer, 6button_gamepad, accurate_timing, accurate_sprites,
- // draw_no_32col_border, external_ym2612, enable_pcm, enable cdda
- // enable_cdgfx, cd_perfect_sync
- extern int PicoOpt;
- extern int PicoVer;
- 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
- int PicoInit(void);
- void PicoExit(void);
- int PicoReset(int hard);
- int PicoFrame(void);
- extern int PicoPad[2]; // Joypads, format is MXYZ SACB RLDU
- extern int (*PicoCram)(int cram); // Callback to convert colour ram 0000bbb0 ggg0rrr0
- extern void (*PicoWriteSound)(int len); // called once per frame at the best time to send sound buffer (PsndOut) to hardware
- int PicoFrameMCD(void);
- // Area.c
- typedef size_t (arearw)(void *p, size_t _size, size_t _n, void *file);
- typedef size_t (areaeof)(void *file);
- typedef int (areaseek)(void *file, long offset, int whence);
- typedef int (areaclose)(void *file);
- // Save or load the state from PmovFile:
- int PmovState(int PmovAction, void *PmovFile); // &1=for reading &2=for writing &4=volatile &8=non-volatile
- extern arearw *areaRead; // external read and write function pointers for
- extern arearw *areaWrite; // gzip save state ability
- extern areaeof *areaEof;
- extern areaseek *areaSeek;
- extern areaclose *areaClose;
- extern void (*PicoStateProgressCB)(const char *str);
- // Cart.c
- typedef enum
- {
- PMT_UNCOMPRESSED = 0,
- PMT_ZIP
- } pm_type;
- typedef struct
- {
- void *file; /* file handle */
- void *param; /* additional file related field */
- unsigned int size; /* size */
- pm_type type;
- } 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 PicoCartInsert(unsigned char *rom,unsigned int romsize);
- void Byteswap(unsigned char *data,int len);
- // anotherguest
- int PicoUnloadCart(unsigned char* romdata);
- // Draw.c
- void PicoDrawSetColorFormat(int which); // 0=BGR444, 1=RGB555, 2=8bit(HighPal pal)
- extern void *DrawLineDest;
- extern int (*PicoScan)(unsigned int num, void *data);
- // internals
- extern unsigned short HighPal[0x100];
- extern int rendstatus;
- // utility
- #ifdef _ASM_DRAW_C
- void *blockcpy(void *dst, const void *src, size_t n);
- #else
- #define blockcpy memcpy
- #endif
- // 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
- // sound.c
- extern int PsndRate,PsndLen;
- extern short *PsndOut;
- void sound_reset();
- void sound_rerate(int preserve_state);
- void z80_pack(unsigned char *data);
- void z80_unpack(unsigned char *data);
- void z80_reset();
- // Utils.c
- extern int PicuAnd;
- int PicuQuick(unsigned short *dest,unsigned short *src);
- int PicuShrink(unsigned short *dest,int destLen,unsigned short *src,int srcLen);
- int PicuShrinkReverse(unsigned short *dest,int destLen,unsigned short *src,int srcLen);
- int PicuMerge(unsigned short *dest,int destLen,unsigned short *src,int srcLen);
- #ifdef __cplusplus
- } // End of extern "C"
- #endif
- #endif // PICO_H
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