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[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 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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// 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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// Pico.c\r
// PicoOpt bits LSb->MSb:\r
// enable_ym2612&dac, enable_sn76496, enable_z80, stereo_sound,\r
// alt_renderer, 6button_gamepad, accurate_timing, accurate_sprites,\r
// draw_no_32col_border, external_ym2612\r
extern int PicoOpt;\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
int PicoInit(void);\r
void PicoExit(void);\r
int PicoReset(int hard);\r
int PicoFrame(void);\r
extern int PicoPad[2]; // Joypads, format is MXYZ SACB RLDU\r
extern int (*PicoCram)(int cram); // Callback to convert colour ram 0000bbb0 ggg0rrr0\r
extern void (*PicoWriteSound)(void); // called once per frame at the best time to send sound buffer (PsndOut) to hardware\r
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int PicoFrameMCD(void);\r
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// Area.c\r
typedef size_t (arearw)(void *p, size_t _size, size_t _n, 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;  // read and write function pointers for\r
extern arearw *areaWrite; // gzip save state ability\r
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// Cart.c\r
int PicoCartLoad(FILE *f,unsigned char **prom,unsigned int *psize);\r
int PicoCartInsert(unsigned char *rom,unsigned int romsize);\r
// notaz\r
int CartLoadZip(const char *fname, unsigned char **prom, unsigned int *psize);\r
void Byteswap(unsigned char *data,int len);\r
// anotherguest\r
int PicoUnloadCart(unsigned char* romdata);\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
extern int (*PicoScan)(unsigned int num, void *data);\r
// internals\r
extern unsigned short HighPal[0x100];\r
extern int rendstatus;\r
// utility\r
#ifdef _ASM_DRAW_C\r
void *blockcpy(void *dst, const void *src, size_t n);\r
#else\r
#define blockcpy memcpy\r
#endif\r
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// Draw2.c\r
// stuff below is optional\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
void sound_reset();\r
void sound_rerate();\r
void z80_pack(unsigned char *data);\r
void z80_unpack(unsigned char *data);\r
void z80_reset();\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