2 // -------------------- Pico Library --------------------
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4 // Pico Library - Header File
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6 // (c) Copyright 2004 Dave, All rights reserved.
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7 // (c) Copyright 2006 notaz, All rights reserved.
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8 // Free for non-commercial use.
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10 // For commercial use, separate licencing terms must be obtained.
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15 // port-specific compile-time settings
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16 #include <port_config.h>
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23 // PicoOpt bits LSb->MSb:
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24 // enable_ym2612&dac, enable_sn76496, enable_z80, stereo_sound,
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25 // alt_renderer, 6button_gamepad, accurate_timing, accurate_sprites,
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26 // draw_no_32col_border, external_ym2612
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29 extern int PicoSkipFrame; // skip rendering frame, but still do sound (if enabled) and emulation stuff
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30 extern int PicoRegionOverride; // override the region detection 0: auto, 1: Japan NTSC, 2: Japan PAL, 4: US, 8: Europe
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32 void PicoExit(void);
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33 int PicoReset(int hard);
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34 int PicoFrame(void);
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35 extern int PicoPad[2]; // Joypads, format is MXYZ SACB RLDU
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36 extern int (*PicoCram)(int cram); // Callback to convert colour ram 0000bbb0 ggg0rrr0
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37 extern void (*PicoWriteSound)(void); // called once per frame at the best time to send sound buffer (PsndOut) to hardware
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39 int PicoFrameMCD(void);
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42 typedef size_t (arearw)(void *p, size_t _size, size_t _n, void *file);
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43 // Save or load the state from PmovFile:
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44 int PmovState(int PmovAction, void *PmovFile); // &1=for reading &2=for writing &4=volatile &8=non-volatile
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45 extern arearw *areaRead; // read and write function pointers for
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46 extern arearw *areaWrite; // gzip save state ability
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49 int PicoCartLoad(FILE *f,unsigned char **prom,unsigned int *psize);
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50 int PicoCartInsert(unsigned char *rom,unsigned int romsize);
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52 int CartLoadZip(const char *fname, unsigned char **prom, unsigned int *psize);
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53 void Byteswap(unsigned char *data,int len);
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55 int PicoUnloadCart(unsigned char* romdata);
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58 void PicoDrawSetColorFormat(int which); // 0=BGR444, 1=RGB555, 2=8bit(HighPal pal)
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59 extern void *DrawLineDest;
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60 extern int (*PicoScan)(unsigned int num, void *data);
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62 extern unsigned short HighPal[0x100];
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63 extern int rendstatus;
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66 void *blockcpy(void *dst, const void *src, size_t n);
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68 #define blockcpy memcpy
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72 // stuff below is optional
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73 extern unsigned short *PicoCramHigh; // pointer to CRAM buff (0x40 shorts), converted to native device color (works only with 16bit for now)
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74 extern void (*PicoPrepareCram)(); // prepares PicoCramHigh for renderer to use
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77 extern int PsndRate,PsndLen;
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78 extern short *PsndOut;
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80 void sound_rerate();
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81 void z80_pack(unsigned char *data);
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82 void z80_unpack(unsigned char *data);
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87 int PicuQuick(unsigned short *dest,unsigned short *src);
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88 int PicuShrink(unsigned short *dest,int destLen,unsigned short *src,int srcLen);
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89 int PicuShrinkReverse(unsigned short *dest,int destLen,unsigned short *src,int srcLen);
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90 int PicuMerge(unsigned short *dest,int destLen,unsigned short *src,int srcLen);
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93 } // End of extern "C"
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