Pico.h 4.6 KB

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  1. // -------------------- Pico Library --------------------
  2. // Pico Library - Header File
  3. // (c) Copyright 2004 Dave, All rights reserved.
  4. // (c) Copyright 2006-2007 notaz, All rights reserved.
  5. // Free for non-commercial use.
  6. // For commercial use, separate licencing terms must be obtained.
  7. #ifndef PICO_H
  8. #define PICO_H
  9. #include <stdio.h>
  10. // port-specific compile-time settings
  11. #include <port_config.h>
  12. #ifdef __cplusplus
  13. extern "C" {
  14. #endif
  15. // external funcs for Sega/Mega CD
  16. int mp3_get_bitrate(FILE *f, int size);
  17. void mp3_start_play(FILE *f, int pos);
  18. int mp3_get_offset(void); // 0-1023
  19. void mp3_update(int *buffer, int length, int stereo);
  20. // Pico.c
  21. // PicoOpt bits LSb->MSb:
  22. // enable_ym2612&dac, enable_sn76496, enable_z80, stereo_sound,
  23. // alt_renderer, 6button_gamepad, accurate_timing, accurate_sprites,
  24. // draw_no_32col_border, external_ym2612, enable_cd_pcm, enable_cd_cdda
  25. // enable_cd_gfx, cd_perfect_sync, soft_32col_scaling, enable_cd_ramcart
  26. extern int PicoOpt;
  27. extern int PicoVer;
  28. extern int PicoSkipFrame; // skip rendering frame, but still do sound (if enabled) and emulation stuff
  29. extern int PicoRegionOverride; // override the region detection 0: auto, 1: Japan NTSC, 2: Japan PAL, 4: US, 8: Europe
  30. extern int PicoAutoRgnOrder; // packed priority list of regions, for example 0x148 means this detection order: EUR, USA, JAP
  31. int PicoInit(void);
  32. void PicoExit(void);
  33. int PicoReset(int hard);
  34. int PicoFrame(void);
  35. void PicoFrameDrawOnly(void);
  36. extern int PicoPad[2]; // Joypads, format is MXYZ SACB RLDU
  37. extern void (*PicoWriteSound)(int len); // called once per frame at the best time to send sound buffer (PsndOut) to hardware
  38. extern void (*PicoMessage)(const char *msg); // callback to output text message from emu
  39. // cd/Pico.c
  40. extern void (*PicoMCDopenTray)(void);
  41. extern int (*PicoMCDcloseTray)(void);
  42. extern int PicoCDBuffers;
  43. // Area.c
  44. typedef size_t (arearw)(void *p, size_t _size, size_t _n, void *file);
  45. typedef size_t (areaeof)(void *file);
  46. typedef int (areaseek)(void *file, long offset, int whence);
  47. typedef int (areaclose)(void *file);
  48. // Save or load the state from PmovFile:
  49. int PmovState(int PmovAction, void *PmovFile); // &1=for reading &2=for writing &4=volatile &8=non-volatile
  50. extern arearw *areaRead; // external read and write function pointers for
  51. extern arearw *areaWrite; // gzip save state ability
  52. extern areaeof *areaEof;
  53. extern areaseek *areaSeek;
  54. extern areaclose *areaClose;
  55. extern void (*PicoStateProgressCB)(const char *str);
  56. // cd/Area.c
  57. int PicoCdLoadStateGfx(void *file);
  58. // cd/buffering.c
  59. void PicoCDBufferInit(void);
  60. void PicoCDBufferFree(void);
  61. // cd/cd_sys.c
  62. int Insert_CD(char *iso_name, int is_bin);
  63. void Stop_CD(void); // releases all resources taken when CD game was started.
  64. // Cart.c
  65. typedef enum
  66. {
  67. PMT_UNCOMPRESSED = 0,
  68. PMT_ZIP
  69. } pm_type;
  70. typedef struct
  71. {
  72. void *file; /* file handle */
  73. void *param; /* additional file related field */
  74. unsigned int size; /* size */
  75. pm_type type;
  76. } pm_file;
  77. pm_file *pm_open(const char *path);
  78. size_t pm_read(void *ptr, size_t bytes, pm_file *stream);
  79. int pm_seek(pm_file *stream, long offset, int whence);
  80. int pm_close(pm_file *fp);
  81. int PicoCartLoad(pm_file *f,unsigned char **prom,unsigned int *psize);
  82. int PicoCartInsert(unsigned char *rom,unsigned int romsize);
  83. void Byteswap(unsigned char *data,int len);
  84. // anotherguest
  85. int PicoUnloadCart(unsigned char* romdata);
  86. extern void (*PicoCartLoadProgressCB)(int percent);
  87. // Draw.c
  88. void PicoDrawSetColorFormat(int which); // 0=BGR444, 1=RGB555, 2=8bit(HighPal pal)
  89. extern void *DrawLineDest;
  90. extern int (*PicoScan)(unsigned int num, void *data);
  91. // internals
  92. extern unsigned short HighPal[0x100];
  93. extern int rendstatus;
  94. // utility
  95. #ifdef _ASM_DRAW_C
  96. void *blockcpy(void *dst, const void *src, size_t n);
  97. #else
  98. #define blockcpy memcpy
  99. #endif
  100. // Draw2.c
  101. // stuff below is optional
  102. extern unsigned short *PicoCramHigh; // pointer to CRAM buff (0x40 shorts), converted to native device color (works only with 16bit for now)
  103. extern void (*PicoPrepareCram)(); // prepares PicoCramHigh for renderer to use
  104. // sound.c
  105. extern int PsndRate,PsndLen;
  106. extern short *PsndOut;
  107. void sound_rerate(int preserve_state);
  108. // Utils.c
  109. extern int PicuAnd;
  110. int PicuQuick(unsigned short *dest,unsigned short *src);
  111. int PicuShrink(unsigned short *dest,int destLen,unsigned short *src,int srcLen);
  112. int PicuShrinkReverse(unsigned short *dest,int destLen,unsigned short *src,int srcLen);
  113. int PicuMerge(unsigned short *dest,int destLen,unsigned short *src,int srcLen);
  114. #ifdef __cplusplus
  115. } // End of extern "C"
  116. #endif
  117. #endif // PICO_H