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 2006-2007 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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17 // port-specific compile-time settings
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18 #include <port_config.h>
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24 // external funcs for Sega/Mega CD
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25 int mp3_get_bitrate(FILE *f, int size);
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26 void mp3_start_play(FILE *f, int pos);
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27 int mp3_get_offset(void); // 0-1023
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28 void mp3_update(int *buffer, int length, int stereo);
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32 // PicoOpt bits LSb->MSb:
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33 // 00 000x enable_ym2612&dac, enable_sn76496, enable_z80, stereo_sound,
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34 // 00 00x0 alt_renderer, 6button_gamepad, accurate_timing, accurate_sprites,
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35 // 00 0x00 draw_no_32col_border, external_ym2612, enable_cd_pcm, enable_cd_cdda
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36 // 00 x000 enable_cd_gfx, cd_perfect_sync, soft_32col_scaling, enable_cd_ramcart
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37 // 0x 0000 disable_vdp_fifo, no_svp_dynarec
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40 extern int PicoSkipFrame; // skip rendering frame, but still do sound (if enabled) and emulation stuff
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41 extern int PicoRegionOverride; // override the region detection 0: auto, 1: Japan NTSC, 2: Japan PAL, 4: US, 8: Europe
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42 extern int PicoAutoRgnOrder; // packed priority list of regions, for example 0x148 means this detection order: EUR, USA, JAP
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43 extern int PicoSVPCycles;
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45 void PicoExit(void);
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46 int PicoReset(int hard);
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47 int PicoFrame(void);
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48 void PicoFrameDrawOnly(void);
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49 extern int PicoPad[2]; // Joypads, format is MXYZ SACB RLDU
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50 extern void (*PicoWriteSound)(int len); // called once per frame at the best time to send sound buffer (PsndOut) to hardware
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51 extern void (*PicoMessage)(const char *msg); // callback to output text message from emu
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52 typedef enum { PS_PAL, PS_40_CELL, PS_240_LINES } pstat_t;
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53 int PicoGetStat(pstat_t which);
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56 extern void (*PicoMCDopenTray)(void);
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57 extern int (*PicoMCDcloseTray)(void);
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58 extern int PicoCDBuffers;
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61 typedef size_t (arearw)(void *p, size_t _size, size_t _n, void *file);
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62 typedef size_t (areaeof)(void *file);
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63 typedef int (areaseek)(void *file, long offset, int whence);
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64 typedef int (areaclose)(void *file);
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65 // Save or load the state from PmovFile:
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66 int PmovState(int PmovAction, void *PmovFile); // &1=for reading &2=for writing &4=volatile &8=non-volatile
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67 extern arearw *areaRead; // external read and write function pointers for
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68 extern arearw *areaWrite; // gzip save state ability
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69 extern areaeof *areaEof;
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70 extern areaseek *areaSeek;
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71 extern areaclose *areaClose;
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72 extern void (*PicoStateProgressCB)(const char *str);
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75 int PicoCdLoadStateGfx(void *file);
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78 void PicoCDBufferInit(void);
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79 void PicoCDBufferFree(void);
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82 int Insert_CD(char *iso_name, int is_bin);
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83 void Stop_CD(void); // releases all resources taken when CD game was started.
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88 PMT_UNCOMPRESSED = 0,
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94 void *file; /* file handle */
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95 void *param; /* additional file related field */
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96 unsigned int size; /* size */
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99 pm_file *pm_open(const char *path);
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100 size_t pm_read(void *ptr, size_t bytes, pm_file *stream);
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101 int pm_seek(pm_file *stream, long offset, int whence);
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102 int pm_close(pm_file *fp);
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103 int PicoCartLoad(pm_file *f,unsigned char **prom,unsigned int *psize);
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104 int PicoCartInsert(unsigned char *rom,unsigned int romsize);
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105 void Byteswap(unsigned char *data,int len);
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106 int PicoUnloadCart(unsigned char* romdata);
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107 extern void (*PicoCartLoadProgressCB)(int percent);
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108 extern void (*PicoCDLoadProgressCB)(int percent);
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111 void PicoDrawSetColorFormat(int which); // 0=BGR444, 1=RGB555, 2=8bit(HighPal pal)
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112 extern void *DrawLineDest;
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113 #if OVERRIDE_HIGHCOL
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114 extern unsigned char *HighCol;
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116 extern int (*PicoScan)(unsigned int num, void *data);
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118 extern unsigned short HighPal[0x100];
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119 extern int rendstatus;
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122 void *blockcpy(void *dst, const void *src, size_t n);
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123 void vidConvCpyRGB565(void *to, void *from, int pixels);
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125 #define blockcpy memcpy
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129 // stuff below is optional
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130 extern unsigned char *PicoDraw2FB; // buffer for fast renderer in format (8+320)x(8+224+8) (eights for borders)
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131 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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132 extern void (*PicoPrepareCram)(); // prepares PicoCramHigh for renderer to use
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135 extern int PsndRate,PsndLen;
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136 extern short *PsndOut;
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137 extern void (*PsndMix_32_to_16l)(short *dest, int *src, int count);
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138 void PsndRerate(int preserve_state);
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141 extern int PicuAnd;
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142 int PicuQuick(unsigned short *dest,unsigned short *src);
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143 int PicuShrink(unsigned short *dest,int destLen,unsigned short *src,int srcLen);
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144 int PicuShrinkReverse(unsigned short *dest,int destLen,unsigned short *src,int srcLen);
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145 int PicuMerge(unsigned short *dest,int destLen,unsigned short *src,int srcLen);
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148 } // End of extern "C"
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