Pico.h 7.1 KB

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  1. // -------------------- Pico Library --------------------
  2. // Pico Library - Header File
  3. // (c) Copyright 2004 Dave, All rights reserved.
  4. // (c) Copyright 2006-2008 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. extern int mp3_get_bitrate(FILE *f, int size);
  17. extern void mp3_start_play(FILE *f, int pos);
  18. extern void mp3_update(int *buffer, int length, int stereo);
  19. // this function should write-back d-cache and invalidate i-cache
  20. // on a mem region [start_addr, end_addr)
  21. // used by SVP dynarec
  22. extern void cache_flush_d_inval_i(const void *start_addr, const void *end_addr);
  23. // Pico.c
  24. #define POPT_EN_FM (1<< 0) // 00 000x
  25. #define POPT_EN_PSG (1<< 1)
  26. #define POPT_EN_Z80 (1<< 2)
  27. #define POPT_EN_STEREO (1<< 3)
  28. #define POPT_ALT_RENDERER (1<< 4) // 00 00x0
  29. #define POPT_6BTN_PAD (1<< 5)
  30. // unused (1<< 6)
  31. #define POPT_ACC_SPRITES (1<< 7)
  32. #define POPT_DIS_32C_BORDER (1<< 8) // 00 0x00
  33. #define POPT_EXT_FM (1<< 9)
  34. #define POPT_EN_MCD_PCM (1<<10)
  35. #define POPT_EN_MCD_CDDA (1<<11)
  36. #define POPT_EN_MCD_GFX (1<<12) // 00 x000
  37. #define POPT_EN_MCD_PSYNC (1<<13)
  38. #define POPT_EN_SOFTSCALE (1<<14)
  39. #define POPT_EN_MCD_RAMCART (1<<15)
  40. #define POPT_DIS_VDP_FIFO (1<<16) // 0x 0000
  41. #define POPT_EN_SVP_DRC (1<<17)
  42. #define POPT_DIS_SPRITE_LIM (1<<18)
  43. #define POPT_DIS_IDLE_DET (1<<19)
  44. extern int PicoOpt; // bitfield
  45. #define PAHW_MCD (1<<0)
  46. #define PAHW_32X (1<<1)
  47. #define PAHW_SVP (1<<2)
  48. #define PAHW_PICO (1<<3)
  49. extern int PicoAHW; // Pico active hw
  50. extern int PicoVer;
  51. extern int PicoSkipFrame; // skip rendering frame, but still do sound (if enabled) and emulation stuff
  52. extern int PicoRegionOverride; // override the region detection 0: auto, 1: Japan NTSC, 2: Japan PAL, 4: US, 8: Europe
  53. extern int PicoAutoRgnOrder; // packed priority list of regions, for example 0x148 means this detection order: EUR, USA, JAP
  54. extern int PicoSVPCycles;
  55. void PicoInit(void);
  56. void PicoExit(void);
  57. void PicoPower(void);
  58. int PicoReset(void);
  59. void PicoFrame(void);
  60. void PicoFrameDrawOnly(void);
  61. extern int PicoPad[2]; // Joypads, format is MXYZ SACB RLDU
  62. extern void (*PicoWriteSound)(int len); // called once per frame at the best time to send sound buffer (PsndOut) to hardware
  63. extern void (*PicoMessage)(const char *msg); // callback to output text message from emu
  64. typedef enum { PI_ROM, PI_ISPAL, PI_IS40_CELL, PI_IS240_LINES } pint_t;
  65. typedef union { int vint; void *vptr; } pint_ret_t;
  66. void PicoGetInternal(pint_t which, pint_ret_t *ret);
  67. // cd/Pico.c
  68. extern void (*PicoMCDopenTray)(void);
  69. extern int (*PicoMCDcloseTray)(void);
  70. extern int PicoCDBuffers;
  71. // Pico/Pico.c
  72. #define XPCM_BUFFER_SIZE (320+160)
  73. typedef struct
  74. {
  75. int pen_pos[2];
  76. int page;
  77. // internal
  78. int fifo_bytes; // bytes in FIFO
  79. int fifo_bytes_prev;
  80. int fifo_line_bytes; // float part, << 16
  81. int line_counter;
  82. unsigned short r1, r12;
  83. unsigned char xpcm_buffer[XPCM_BUFFER_SIZE+4];
  84. unsigned char *xpcm_ptr;
  85. } picohw_state;
  86. extern picohw_state PicoPicohw;
  87. // Area.c
  88. typedef size_t (arearw)(void *p, size_t _size, size_t _n, void *file);
  89. typedef size_t (areaeof)(void *file);
  90. typedef int (areaseek)(void *file, long offset, int whence);
  91. typedef int (areaclose)(void *file);
  92. // Save or load the state from PmovFile:
  93. int PmovState(int PmovAction, void *PmovFile); // &1=for reading &2=for writing &4=volatile &8=non-volatile
  94. extern arearw *areaRead; // external read and write function pointers for
  95. extern arearw *areaWrite; // gzip save state ability
  96. extern areaeof *areaEof;
  97. extern areaseek *areaSeek;
  98. extern areaclose *areaClose;
  99. extern void (*PicoStateProgressCB)(const char *str);
  100. // cd/Area.c
  101. int PicoCdLoadStateGfx(void *file);
  102. // cd/buffering.c
  103. void PicoCDBufferInit(void);
  104. void PicoCDBufferFree(void);
  105. void PicoCDBufferFlush(void);
  106. // cd/cd_sys.c
  107. int Insert_CD(char *cdimg_name, int type);
  108. void Stop_CD(void); // releases all resources taken when CD game was started.
  109. // Cart.c
  110. typedef enum
  111. {
  112. PMT_UNCOMPRESSED = 0,
  113. PMT_ZIP,
  114. PMT_CSO
  115. } pm_type;
  116. typedef struct
  117. {
  118. void *file; /* file handle */
  119. void *param; /* additional file related field */
  120. unsigned int size; /* size */
  121. pm_type type;
  122. } pm_file;
  123. pm_file *pm_open(const char *path);
  124. size_t pm_read(void *ptr, size_t bytes, pm_file *stream);
  125. int pm_seek(pm_file *stream, long offset, int whence);
  126. int pm_close(pm_file *fp);
  127. int PicoCartLoad(pm_file *f,unsigned char **prom,unsigned int *psize);
  128. int PicoCartInsert(unsigned char *rom,unsigned int romsize);
  129. void Byteswap(unsigned char *data,int len);
  130. void PicoCartUnload(void);
  131. extern void (*PicoCartLoadProgressCB)(int percent);
  132. extern void (*PicoCDLoadProgressCB)(int percent);
  133. // Draw.c
  134. void PicoDrawSetColorFormat(int which); // 0=BGR444, 1=RGB555, 2=8bit(HighPal pal)
  135. extern void *DrawLineDest;
  136. #if OVERRIDE_HIGHCOL
  137. extern unsigned char *HighCol;
  138. #else
  139. extern unsigned char HighCol[8+320+8];
  140. #endif
  141. extern int (*PicoScanBegin)(unsigned int num);
  142. extern int (*PicoScanEnd)(unsigned int num);
  143. // utility
  144. #ifdef _ASM_DRAW_C
  145. void vidConvCpyRGB565(void *to, void *from, int pixels);
  146. #endif
  147. void PicoDoHighPal555(int sh);
  148. extern int PicoDrawMask;
  149. #define PDRAW_LAYERB_ON (1<<2)
  150. #define PDRAW_LAYERA_ON (1<<3)
  151. #define PDRAW_SPRITES_LOW_ON (1<<4)
  152. #define PDRAW_SPRITES_HI_ON (1<<7)
  153. // internals
  154. #define PDRAW_SPRITES_MOVED (1<<0) // (asm)
  155. #define PDRAW_WND_DIFF_PRIO (1<<1) // not all window tiles use same priority
  156. #define PDRAW_ACC_SPRITES (1<<2) // accurate sprites (copied from PicoOpt)
  157. #define PDRAW_INTERLACE (1<<3)
  158. #define PDRAW_DIRTY_SPRITES (1<<4) // (asm)
  159. #define PDRAW_SONIC_MODE (1<<5) // mid-frame palette changes for 8bit renderer
  160. #define PDRAW_PLANE_HI_PRIO (1<<6) // have layer with all hi prio tiles (mk3)
  161. #define PDRAW_SHHI_DONE (1<<7) // layer sh/hi already processed
  162. extern int rendstatus;
  163. extern unsigned short HighPal[0x100];
  164. // Draw2.c
  165. // stuff below is optional
  166. extern unsigned char *PicoDraw2FB; // buffer for fast renderer in format (8+320)x(8+224+8) (eights for borders)
  167. extern unsigned short *PicoCramHigh; // pointer to CRAM buff (0x40 shorts), converted to native device color (works only with 16bit for now)
  168. extern void (*PicoPrepareCram)(); // prepares PicoCramHigh for renderer to use
  169. // sound.c
  170. extern int PsndRate,PsndLen;
  171. extern short *PsndOut;
  172. extern void (*PsndMix_32_to_16l)(short *dest, int *src, int count);
  173. void PsndRerate(int preserve_state);
  174. // Utils.c
  175. extern int PicuAnd;
  176. int PicuQuick(unsigned short *dest,unsigned short *src);
  177. int PicuShrink(unsigned short *dest,int destLen,unsigned short *src,int srcLen);
  178. int PicuShrinkReverse(unsigned short *dest,int destLen,unsigned short *src,int srcLen);
  179. int PicuMerge(unsigned short *dest,int destLen,unsigned short *src,int srcLen);
  180. #ifdef __cplusplus
  181. } // End of extern "C"
  182. #endif
  183. #endif // PICO_H