| 1 | /*\r |
| 2 | * PicoDrive\r |
| 3 | * (c) Copyright Dave, 2004\r |
| 4 | * (C) notaz, 2006-2010\r |
| 5 | *\r |
| 6 | * This work is licensed under the terms of MAME license.\r |
| 7 | * See COPYING file in the top-level directory.\r |
| 8 | */\r |
| 9 | \r |
| 10 | #ifndef PICO_H\r |
| 11 | #define PICO_H\r |
| 12 | \r |
| 13 | #include <stdlib.h> // size_t\r |
| 14 | \r |
| 15 | // port-specific compile-time settings\r |
| 16 | #include <port_config.h>\r |
| 17 | \r |
| 18 | #ifdef __cplusplus\r |
| 19 | extern "C" {\r |
| 20 | #endif\r |
| 21 | \r |
| 22 | // external funcs for Sega/Mega CD\r |
| 23 | extern int mp3_get_bitrate(void *f, int size);\r |
| 24 | extern void mp3_start_play(void *f, int pos);\r |
| 25 | extern void mp3_update(int *buffer, int length, int stereo);\r |
| 26 | \r |
| 27 | // this function should write-back d-cache and invalidate i-cache\r |
| 28 | // on a mem region [start_addr, end_addr)\r |
| 29 | // used by dynarecs\r |
| 30 | extern void cache_flush_d_inval_i(const void *start_addr, const void *end_addr);\r |
| 31 | \r |
| 32 | // attempt to alloc mem at specified address.\r |
| 33 | // alloc anywhere else if that fails (callers should handle that)\r |
| 34 | extern void *plat_mmap(unsigned long addr, size_t size, int need_exec, int is_fixed);\r |
| 35 | extern void *plat_mremap(void *ptr, size_t oldsize, size_t newsize);\r |
| 36 | extern void plat_munmap(void *ptr, size_t size);\r |
| 37 | \r |
| 38 | // this one should handle display mode changes\r |
| 39 | extern void emu_video_mode_change(int start_line, int line_count, int is_32cols);\r |
| 40 | \r |
| 41 | // this must switch to 16bpp mode\r |
| 42 | extern void emu_32x_startup(void);\r |
| 43 | \r |
| 44 | // optional 32X BIOS, should be left NULL if not used\r |
| 45 | // must be 256, 2048, 1024 bytes\r |
| 46 | extern void *p32x_bios_g, *p32x_bios_m, *p32x_bios_s;\r |
| 47 | \r |
| 48 | // Pico.c\r |
| 49 | #define POPT_EN_FM (1<< 0) // 00 000x\r |
| 50 | #define POPT_EN_PSG (1<< 1)\r |
| 51 | #define POPT_EN_Z80 (1<< 2)\r |
| 52 | #define POPT_EN_STEREO (1<< 3)\r |
| 53 | #define POPT_ALT_RENDERER (1<< 4) // 00 00x0\r |
| 54 | #define POPT_6BTN_PAD (1<< 5)\r |
| 55 | // unused (1<< 6)\r |
| 56 | #define POPT_ACC_SPRITES (1<< 7)\r |
| 57 | #define POPT_DIS_32C_BORDER (1<< 8) // 00 0x00\r |
| 58 | #define POPT_EXT_FM (1<< 9)\r |
| 59 | #define POPT_EN_MCD_PCM (1<<10)\r |
| 60 | #define POPT_EN_MCD_CDDA (1<<11)\r |
| 61 | #define POPT_EN_MCD_GFX (1<<12) // 00 x000\r |
| 62 | #define POPT_EN_MCD_PSYNC (1<<13)\r |
| 63 | #define POPT_EN_SOFTSCALE (1<<14)\r |
| 64 | #define POPT_EN_MCD_RAMCART (1<<15)\r |
| 65 | #define POPT_DIS_VDP_FIFO (1<<16) // 0x 0000\r |
| 66 | #define POPT_EN_SVP_DRC (1<<17)\r |
| 67 | #define POPT_DIS_SPRITE_LIM (1<<18)\r |
| 68 | #define POPT_DIS_IDLE_DET (1<<19)\r |
| 69 | #define POPT_EN_32X (1<<20)\r |
| 70 | #define POPT_EN_PWM (1<<21)\r |
| 71 | extern int PicoOpt; // bitfield\r |
| 72 | \r |
| 73 | #define PAHW_MCD (1<<0)\r |
| 74 | #define PAHW_32X (1<<1)\r |
| 75 | #define PAHW_SVP (1<<2)\r |
| 76 | #define PAHW_PICO (1<<3)\r |
| 77 | #define PAHW_SMS (1<<4)\r |
| 78 | extern int PicoAHW; // Pico active hw\r |
| 79 | extern int PicoSkipFrame; // skip rendering frame, but still do sound (if enabled) and emulation stuff\r |
| 80 | extern int PicoRegionOverride; // override the region detection 0: auto, 1: Japan NTSC, 2: Japan PAL, 4: US, 8: Europe\r |
| 81 | extern int PicoAutoRgnOrder; // packed priority list of regions, for example 0x148 means this detection order: EUR, USA, JAP\r |
| 82 | extern int PicoSVPCycles;\r |
| 83 | void PicoInit(void);\r |
| 84 | void PicoExit(void);\r |
| 85 | void PicoPower(void);\r |
| 86 | int PicoReset(void);\r |
| 87 | void PicoLoopPrepare(void);\r |
| 88 | void PicoFrame(void);\r |
| 89 | void PicoFrameDrawOnly(void);\r |
| 90 | extern int PicoPad[2]; // Joypads, format is MXYZ SACB RLDU\r |
| 91 | extern void (*PicoWriteSound)(int bytes); // called once per frame at the best time to send sound buffer (PsndOut) to hardware\r |
| 92 | extern void (*PicoMessage)(const char *msg); // callback to output text message from emu\r |
| 93 | typedef enum { PI_ROM, PI_ISPAL, PI_IS40_CELL, PI_IS240_LINES } pint_t;\r |
| 94 | typedef union { int vint; void *vptr; } pint_ret_t;\r |
| 95 | void PicoGetInternal(pint_t which, pint_ret_t *ret);\r |
| 96 | \r |
| 97 | // cd/Pico.c\r |
| 98 | extern void (*PicoMCDopenTray)(void);\r |
| 99 | extern void (*PicoMCDcloseTray)(void);\r |
| 100 | extern int PicoCDBuffers;\r |
| 101 | \r |
| 102 | // pico.c\r |
| 103 | #define XPCM_BUFFER_SIZE (320+160)\r |
| 104 | typedef struct\r |
| 105 | {\r |
| 106 | int pen_pos[2];\r |
| 107 | int page;\r |
| 108 | // internal\r |
| 109 | int fifo_bytes; // bytes in FIFO\r |
| 110 | int fifo_bytes_prev;\r |
| 111 | int fifo_line_bytes; // float part, << 16\r |
| 112 | int line_counter;\r |
| 113 | unsigned short r1, r12;\r |
| 114 | unsigned char xpcm_buffer[XPCM_BUFFER_SIZE+4];\r |
| 115 | unsigned char *xpcm_ptr;\r |
| 116 | } picohw_state;\r |
| 117 | extern picohw_state PicoPicohw;\r |
| 118 | \r |
| 119 | // area.c\r |
| 120 | int PicoState(const char *fname, int is_save);\r |
| 121 | int PicoStateLoadGfx(const char *fname);\r |
| 122 | void *PicoTmpStateSave(void);\r |
| 123 | void PicoTmpStateRestore(void *data);\r |
| 124 | extern void (*PicoStateProgressCB)(const char *str);\r |
| 125 | \r |
| 126 | // cd/buffering.c\r |
| 127 | void PicoCDBufferInit(void);\r |
| 128 | void PicoCDBufferFree(void);\r |
| 129 | void PicoCDBufferFlush(void);\r |
| 130 | \r |
| 131 | // cd/cd_sys.c\r |
| 132 | int Insert_CD(const char *cdimg_name, int type);\r |
| 133 | void Stop_CD(void); // releases all resources taken when CD game was started.\r |
| 134 | \r |
| 135 | // Cart.c\r |
| 136 | typedef enum\r |
| 137 | {\r |
| 138 | PMT_UNCOMPRESSED = 0,\r |
| 139 | PMT_ZIP,\r |
| 140 | PMT_CSO\r |
| 141 | } pm_type;\r |
| 142 | typedef struct\r |
| 143 | {\r |
| 144 | void *file; /* file handle */\r |
| 145 | void *param; /* additional file related field */\r |
| 146 | unsigned int size; /* size */\r |
| 147 | pm_type type;\r |
| 148 | char ext[4];\r |
| 149 | } pm_file;\r |
| 150 | pm_file *pm_open(const char *path);\r |
| 151 | size_t pm_read(void *ptr, size_t bytes, pm_file *stream);\r |
| 152 | int pm_seek(pm_file *stream, long offset, int whence);\r |
| 153 | int pm_close(pm_file *fp);\r |
| 154 | int PicoCartLoad(pm_file *f,unsigned char **prom,unsigned int *psize,int is_sms);\r |
| 155 | int PicoCartInsert(unsigned char *rom, unsigned int romsize, const char *carthw_cfg);\r |
| 156 | void PicoCartUnload(void);\r |
| 157 | extern void (*PicoCartLoadProgressCB)(int percent);\r |
| 158 | extern void (*PicoCDLoadProgressCB)(const char *fname, int percent);\r |
| 159 | \r |
| 160 | // Draw.c\r |
| 161 | // for line-based renderer, set conversion\r |
| 162 | // from internal 8 bit representation in 'HighCol' to:\r |
| 163 | typedef enum\r |
| 164 | {\r |
| 165 | PDF_NONE = 0, // no conversion\r |
| 166 | PDF_RGB555, // RGB/BGR output, depends on compile options\r |
| 167 | PDF_8BIT, // 8-bit out (handles shadow/hilight mode, sonic water)\r |
| 168 | } pdso_t;\r |
| 169 | void PicoDrawSetOutFormat(pdso_t which, int allow_32x);\r |
| 170 | void PicoDrawSetOutBuf(void *dest, int increment);\r |
| 171 | void PicoDrawSetCallbacks(int (*begin)(unsigned int num), int (*end)(unsigned int num));\r |
| 172 | extern void *DrawLineDest;\r |
| 173 | extern unsigned char *HighCol;\r |
| 174 | // utility\r |
| 175 | #ifdef _ASM_DRAW_C\r |
| 176 | void vidConvCpyRGB565(void *to, void *from, int pixels);\r |
| 177 | #endif\r |
| 178 | void PicoDoHighPal555(int sh);\r |
| 179 | extern int PicoDrawMask;\r |
| 180 | #define PDRAW_LAYERB_ON (1<<2)\r |
| 181 | #define PDRAW_LAYERA_ON (1<<3)\r |
| 182 | #define PDRAW_SPRITES_LOW_ON (1<<4)\r |
| 183 | #define PDRAW_SPRITES_HI_ON (1<<7)\r |
| 184 | #define PDRAW_32X_ON (1<<8)\r |
| 185 | // internals\r |
| 186 | #define PDRAW_SPRITES_MOVED (1<<0) // (asm)\r |
| 187 | #define PDRAW_WND_DIFF_PRIO (1<<1) // not all window tiles use same priority\r |
| 188 | #define PDRAW_SPR_LO_ON_HI (1<<2) // seen sprites without layer pri bit ontop spr. with that bit\r |
| 189 | #define PDRAW_INTERLACE (1<<3)\r |
| 190 | #define PDRAW_DIRTY_SPRITES (1<<4) // (asm)\r |
| 191 | #define PDRAW_SONIC_MODE (1<<5) // mid-frame palette changes for 8bit renderer\r |
| 192 | #define PDRAW_PLANE_HI_PRIO (1<<6) // have layer with all hi prio tiles (mk3)\r |
| 193 | #define PDRAW_SHHI_DONE (1<<7) // layer sh/hi already processed\r |
| 194 | #define PDRAW_32_COLS (1<<8) // 32 column mode\r |
| 195 | extern int rendstatus, rendstatus_old;\r |
| 196 | extern int rendlines;\r |
| 197 | extern unsigned short HighPal[0x100];\r |
| 198 | \r |
| 199 | // draw.c\r |
| 200 | void PicoDrawUpdateHighPal(void);\r |
| 201 | void PicoDrawSetInternalBuf(void *dest, int line_increment);\r |
| 202 | \r |
| 203 | // draw2.c\r |
| 204 | // stuff below is optional\r |
| 205 | extern unsigned char *PicoDraw2FB; // buffer for fast renderer in format (8+320)x(8+224+8) (eights for borders)\r |
| 206 | extern unsigned short *PicoCramHigh; // pointer to CRAM buff (0x40 shorts), converted to native device color (works only with 16bit for now)\r |
| 207 | extern void (*PicoPrepareCram)(); // prepares PicoCramHigh for renderer to use\r |
| 208 | \r |
| 209 | // pico.c (32x)\r |
| 210 | // multipliers against 68k clock\r |
| 211 | extern int p32x_msh2_multiplier;\r |
| 212 | extern int p32x_ssh2_multiplier;\r |
| 213 | #define SH2_MULTI_SHIFT 10\r |
| 214 | #define MSH2_MULTI_DEFAULT ((1 << SH2_MULTI_SHIFT) * 3 / 2)\r |
| 215 | #define SSH2_MULTI_DEFAULT ((1 << SH2_MULTI_SHIFT) * 3 / 2)\r |
| 216 | \r |
| 217 | // 32x/draw.c\r |
| 218 | void PicoDraw32xSetFrameMode(int is_on, int only_32x);\r |
| 219 | \r |
| 220 | // sound.c\r |
| 221 | extern int PsndRate,PsndLen;\r |
| 222 | extern short *PsndOut;\r |
| 223 | extern void (*PsndMix_32_to_16l)(short *dest, int *src, int count);\r |
| 224 | void PsndRerate(int preserve_state);\r |
| 225 | \r |
| 226 | #ifdef __cplusplus\r |
| 227 | } // End of extern "C"\r |
| 228 | #endif\r |
| 229 | \r |
| 230 | #endif // PICO_H\r |