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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22 // external funcs for Sega/Mega CD
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23 int mp3_get_bitrate(FILE *f, int size);
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24 void mp3_start_play(FILE *f, int pos);
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25 int mp3_get_offset(void); // 0-1023
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26 void mp3_update(int *buffer, int length, int stereo);
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30 // PicoOpt bits LSb->MSb:
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31 // enable_ym2612&dac, enable_sn76496, enable_z80, stereo_sound,
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32 // alt_renderer, 6button_gamepad, accurate_timing, accurate_sprites,
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33 // draw_no_32col_border, external_ym2612, enable_pcm, enable cdda
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34 // enable_cdgfx, cd_perfect_sync, soft_32col_scaling
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37 extern int PicoSkipFrame; // skip rendering frame, but still do sound (if enabled) and emulation stuff
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38 extern int PicoRegionOverride; // override the region detection 0: auto, 1: Japan NTSC, 2: Japan PAL, 4: US, 8: Europe
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39 extern int PicoAutoRgnOrder; // packed priority list of regions, for example 0x148 means this detection order: EUR, USA, JAP
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41 void PicoExit(void);
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42 int PicoReset(int hard);
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43 int PicoFrame(void);
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44 extern int PicoPad[2]; // Joypads, format is MXYZ SACB RLDU
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45 extern void (*PicoWriteSound)(int len); // called once per frame at the best time to send sound buffer (PsndOut) to hardware
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46 extern void (*PicoMessage)(const char *msg); // callback to output text message from emu
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49 int PicoFrameMCD(void);
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50 extern void (*PicoMCDopenTray)(void);
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51 extern int (*PicoMCDcloseTray)(void);
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53 extern int PicoCDBuffers;
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56 typedef size_t (arearw)(void *p, size_t _size, size_t _n, void *file);
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57 typedef size_t (areaeof)(void *file);
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58 typedef int (areaseek)(void *file, long offset, int whence);
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59 typedef int (areaclose)(void *file);
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60 // Save or load the state from PmovFile:
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61 int PmovState(int PmovAction, void *PmovFile); // &1=for reading &2=for writing &4=volatile &8=non-volatile
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62 extern arearw *areaRead; // external read and write function pointers for
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63 extern arearw *areaWrite; // gzip save state ability
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64 extern areaeof *areaEof;
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65 extern areaseek *areaSeek;
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66 extern areaclose *areaClose;
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67 extern void (*PicoStateProgressCB)(const char *str);
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70 void PicoCDBufferInit(void);
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71 void PicoCDBufferFree(void);
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76 PMT_UNCOMPRESSED = 0,
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81 void *file; /* file handle */
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82 void *param; /* additional file related field */
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83 unsigned int size; /* size */
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86 pm_file *pm_open(const char *path);
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87 size_t pm_read(void *ptr, size_t bytes, pm_file *stream);
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88 int pm_seek(pm_file *stream, long offset, int whence);
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89 int pm_close(pm_file *fp);
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90 int PicoCartLoad(pm_file *f,unsigned char **prom,unsigned int *psize);
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91 int PicoCartInsert(unsigned char *rom,unsigned int romsize);
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92 void Byteswap(unsigned char *data,int len);
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94 int PicoUnloadCart(unsigned char* romdata);
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97 void PicoDrawSetColorFormat(int which); // 0=BGR444, 1=RGB555, 2=8bit(HighPal pal)
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98 extern void *DrawLineDest;
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99 extern int (*PicoScan)(unsigned int num, void *data);
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101 extern unsigned short HighPal[0x100];
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102 extern int rendstatus;
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105 void *blockcpy(void *dst, const void *src, size_t n);
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107 #define blockcpy memcpy
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111 // stuff below is optional
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112 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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113 extern void (*PicoPrepareCram)(); // prepares PicoCramHigh for renderer to use
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116 extern int PsndRate,PsndLen;
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117 extern short *PsndOut;
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118 void sound_reset();
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119 void sound_rerate(int preserve_state);
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120 void z80_pack(unsigned char *data);
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121 void z80_unpack(unsigned char *data);
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125 extern int PicuAnd;
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126 int PicuQuick(unsigned short *dest,unsigned short *src);
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127 int PicuShrink(unsigned short *dest,int destLen,unsigned short *src,int srcLen);
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128 int PicuShrinkReverse(unsigned short *dest,int destLen,unsigned short *src,int srcLen);
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129 int PicuMerge(unsigned short *dest,int destLen,unsigned short *src,int srcLen);
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132 } // End of extern "C"
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