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idle loop detection (Cyclone only, with debug stuff)
[picodrive.git] / Pico / Pico.h
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1\r
2// -------------------- Pico Library --------------------\r
3\r
4// Pico Library - Header File\r
5\r
6// (c) Copyright 2004 Dave, All rights reserved.\r
7// (c) Copyright 2006-2008 notaz, All rights reserved.\r
8// Free for non-commercial use.\r
9\r
10// For commercial use, separate licencing terms must be obtained.\r
11\r
12#ifndef PICO_H\r
13#define PICO_H\r
14\r
15#include <stdio.h>\r
16\r
17// port-specific compile-time settings\r
18#include <port_config.h>\r
19\r
20#ifdef __cplusplus\r
21extern "C" {\r
22#endif\r
23\r
24// external funcs for Sega/Mega CD\r
25int mp3_get_bitrate(FILE *f, int size);\r
26void mp3_start_play(FILE *f, int pos);\r
27void mp3_update(int *buffer, int length, int stereo);\r
28\r
29\r
30// Pico.c\r
31#define POPT_EN_FM (1<< 0) // 00 000x\r
32#define POPT_EN_PSG (1<< 1)\r
33#define POPT_EN_Z80 (1<< 2)\r
34#define POPT_EN_STEREO (1<< 3)\r
35#define POPT_ALT_RENDERER (1<< 4) // 00 00x0\r
36#define POPT_6BTN_PAD (1<< 5)\r
37#define POPT_ACC_TIMING (1<< 6)\r
38#define POPT_ACC_SPRITES (1<< 7)\r
39#define POPT_DIS_32C_BORDER (1<< 8) // 00 0x00\r
40#define POPT_EXT_FM (1<< 9)\r
41#define POPT_EN_MCD_PCM (1<<10)\r
42#define POPT_EN_MCD_CDDA (1<<11)\r
43#define POPT_EN_MCD_GFX (1<<12) // 00 x000\r
44#define POPT_EN_MCD_PSYNC (1<<13)\r
45#define POPT_EN_SOFTSCALE (1<<14)\r
46#define POPT_EN_MCD_RAMCART (1<<15)\r
47#define POPT_DIS_VDP_FIFO (1<<16) // 0x 0000\r
48#define POPT_EN_SVP_DRC (1<<17)\r
49#define POPT_DIS_SPRITE_LIM (1<<18)\r
50#define POPT_DIS_IDLE_DET (1<<19)\r
51extern int PicoOpt; // bitfield\r
52#define PAHW_MCD (1<<0)\r
53#define PAHW_32X (1<<1)\r
54#define PAHW_SVP (1<<2)\r
55#define PAHW_PICO (1<<3)\r
56extern int PicoAHW; // Pico active hw\r
57extern int PicoVer;\r
58extern int PicoSkipFrame; // skip rendering frame, but still do sound (if enabled) and emulation stuff\r
59extern int PicoRegionOverride; // override the region detection 0: auto, 1: Japan NTSC, 2: Japan PAL, 4: US, 8: Europe\r
60extern int PicoAutoRgnOrder; // packed priority list of regions, for example 0x148 means this detection order: EUR, USA, JAP\r
61extern int PicoSVPCycles;\r
62int PicoInit(void);\r
63void PicoExit(void);\r
64void PicoPower(void);\r
65int PicoReset(void);\r
66int PicoFrame(void);\r
67void PicoFrameDrawOnly(void);\r
68extern int PicoPad[2]; // Joypads, format is MXYZ SACB RLDU\r
69extern void (*PicoWriteSound)(int len); // called once per frame at the best time to send sound buffer (PsndOut) to hardware\r
70extern void (*PicoMessage)(const char *msg); // callback to output text message from emu\r
71typedef enum { PI_ROM, PI_ISPAL, PI_IS40_CELL, PI_IS240_LINES } pint_t;\r
72typedef union { int vint; void *vptr; } pint_ret_t;\r
73void PicoGetInternal(pint_t which, pint_ret_t *ret);\r
74\r
75// cd/Pico.c\r
76extern void (*PicoMCDopenTray)(void);\r
77extern int (*PicoMCDcloseTray)(void);\r
78extern int PicoCDBuffers;\r
79\r
80// Pico/Pico.c\r
81#define XPCM_BUFFER_SIZE (320+160)\r
82typedef struct\r
83{\r
84 int pen_pos[2];\r
85 int page;\r
86 // internal\r
87 int fifo_bytes; // bytes in FIFO\r
88 int fifo_bytes_prev;\r
89 int fifo_line_bytes; // float part, << 16\r
90 int line_counter;\r
91 unsigned short r1, r12;\r
92 unsigned char xpcm_buffer[XPCM_BUFFER_SIZE+4];\r
93 unsigned char *xpcm_ptr;\r
94} picohw_state;\r
95extern picohw_state PicoPicohw;\r
96\r
97// Area.c\r
98typedef size_t (arearw)(void *p, size_t _size, size_t _n, void *file);\r
99typedef size_t (areaeof)(void *file);\r
100typedef int (areaseek)(void *file, long offset, int whence);\r
101typedef int (areaclose)(void *file);\r
102// Save or load the state from PmovFile:\r
103int PmovState(int PmovAction, void *PmovFile); // &1=for reading &2=for writing &4=volatile &8=non-volatile\r
104extern arearw *areaRead; // external read and write function pointers for\r
105extern arearw *areaWrite; // gzip save state ability\r
106extern areaeof *areaEof;\r
107extern areaseek *areaSeek;\r
108extern areaclose *areaClose;\r
109extern void (*PicoStateProgressCB)(const char *str);\r
110\r
111// cd/Area.c\r
112int PicoCdLoadStateGfx(void *file);\r
113\r
114// cd/buffering.c\r
115void PicoCDBufferInit(void);\r
116void PicoCDBufferFree(void);\r
117void PicoCDBufferFlush(void);\r
118\r
119// cd/cd_sys.c\r
120int Insert_CD(char *iso_name, int is_bin);\r
121int Insert_CD(char *cdimg_name, int type);\r
122void Stop_CD(void); // releases all resources taken when CD game was started.\r
123\r
124// Cart.c\r
125typedef enum\r
126{\r
127 PMT_UNCOMPRESSED = 0,\r
128 PMT_ZIP,\r
129 PMT_CSO\r
130} pm_type;\r
131typedef struct\r
132{\r
133 void *file; /* file handle */\r
134 void *param; /* additional file related field */\r
135 unsigned int size; /* size */\r
136 pm_type type;\r
137} pm_file;\r
138pm_file *pm_open(const char *path);\r
139size_t pm_read(void *ptr, size_t bytes, pm_file *stream);\r
140int pm_seek(pm_file *stream, long offset, int whence);\r
141int pm_close(pm_file *fp);\r
142int PicoCartLoad(pm_file *f,unsigned char **prom,unsigned int *psize);\r
143int PicoCartInsert(unsigned char *rom,unsigned int romsize);\r
144void Byteswap(unsigned char *data,int len);\r
145int PicoCartUnload(void);\r
146extern void (*PicoCartLoadProgressCB)(int percent);\r
147extern void (*PicoCDLoadProgressCB)(int percent);\r
148\r
149// Draw.c\r
150void PicoDrawSetColorFormat(int which); // 0=BGR444, 1=RGB555, 2=8bit(HighPal pal)\r
151extern void *DrawLineDest;\r
152#if OVERRIDE_HIGHCOL\r
153extern unsigned char *HighCol;\r
154#endif\r
155extern int (*PicoScanBegin)(unsigned int num);\r
156extern int (*PicoScanEnd)(unsigned int num);\r
157// utility\r
158#ifdef _ASM_DRAW_C\r
159void vidConvCpyRGB565(void *to, void *from, int pixels);\r
160#endif\r
161// internals\r
162#define PDRAW_SPRITES_MOVED (1<<0)\r
163#define PDRAW_WND_DIFF_PRIO (1<<1) // not all window tiles use same priority\r
164#define PDRAW_ACC_SPRITES (1<<2) // accurate sprites (copied from PicoOpt)\r
165#define PDRAW_INTERLACE (1<<3) //\r
166#define PDRAW_DIRTY_SPRITES (1<<4)\r
167#define PDRAW_SONIC_MODE (1<<5) // mid-frame palette changes for 8bit renderer\r
168#define PDRAW_PLANE_HI_PRIO (1<<6) // have layer with all hi prio tiles (mk3)\r
169#define PDRAW_SHHI_DONE (1<<7) // layer sh/hi already processed\r
170#define PDRAW_EARLY_BLANK (1<<8) // blanking enabled at the start of prev line\r
171extern int rendstatus;\r
172extern unsigned short HighPal[0x100];\r
173\r
174// Draw2.c\r
175// stuff below is optional\r
176extern unsigned char *PicoDraw2FB; // buffer for fast renderer in format (8+320)x(8+224+8) (eights for borders)\r
177extern unsigned short *PicoCramHigh; // pointer to CRAM buff (0x40 shorts), converted to native device color (works only with 16bit for now)\r
178extern void (*PicoPrepareCram)(); // prepares PicoCramHigh for renderer to use\r
179\r
180// sound.c\r
181extern int PsndRate,PsndLen;\r
182extern short *PsndOut;\r
183extern void (*PsndMix_32_to_16l)(short *dest, int *src, int count);\r
184void PsndRerate(int preserve_state);\r
185\r
186// Utils.c\r
187extern int PicuAnd;\r
188int PicuQuick(unsigned short *dest,unsigned short *src);\r
189int PicuShrink(unsigned short *dest,int destLen,unsigned short *src,int srcLen);\r
190int PicuShrinkReverse(unsigned short *dest,int destLen,unsigned short *src,int srcLen);\r
191int PicuMerge(unsigned short *dest,int destLen,unsigned short *src,int srcLen);\r
192\r
193#ifdef __cplusplus\r
194} // End of extern "C"\r
195#endif\r
196\r
197#endif // PICO_H\r
fast MegaDrive/MegaCD/32X emulator