game.h

来自「ESS3890+SL原代码（1*16内存）」· C头文件 代码 · 共 206 行

/* SCCSID @(#)game.h	4.1 11/05/02 */
/*Set up on 04/11/2002*/

#ifndef GAME_H
#define GAME_H

#if (defined VGB_CD || defined INES_CD) 

GBLDEF0(int *CD_yuv_pal);
GBLDEF0(int *CD_gm_startY);
GBLDEF0(int *CD_gm_startU);
GBLDEF0(int *CD_gm_startV);

#define GM_RGB1_START                  ((30 * 32) / 2)
#define GM_RGB2_START                  ((32 * 32) / 2)
#define GM_RGB3_START                  ((34 * 32) / 2)
#define GM_RGB4_START                  ((32 * 32) / 2)
#define GM_RGB5_START                  ((34 * 32) / 2)
#define GM_Y1_START                    0
#define GM_Y2_START                    (( 2 * 32) / 2)
#define GM_U420_START                  ((34 * 32) / 2)
#define GM_V420_START                  ((35 * 32) / 2)
#define GBSND_BASE     131072 /* Base frequency             */
#define GBSND_CHANNELS 4      /* Number of channels         */
#define RECORD_NOTES   8
#define SND_CONSTANT 111861 /* Sound base frequency (Hz)     */
#define SND_UPDATE   60     /* Sound update frequency (Hz)   */

void CDGM_hscale_recover(void);
void CDGM_hscale(int width);
void VGAPutImage();
void CDGM_init_disp();
void CDGM_ld_yuvpal(unsigned char *Palette, unsigned char *XPal);
void CDGM_init_pad();
unsigned int CDGM_key_process();

typedef struct { unsigned char *Data;int W,H; } V_Image;
 
typedef struct
{
  /* Sound parameters */
  int  Volume[6];
  int  Freq[6];      /* Sound volumes (0-255) and frequencies (Hz) */
  int  VSweep[5];
  int  FSweep[5];    /* Volume and frequency deltas                */
  int  VCount[5];
  int  FCount[5];    /* Volume envelope and frequency counters     */
  int  VDecay[5];    /* Volume decay                               */
  unsigned char SND[32];      /* Sound chip registers                       */

  int rp;
  int wp;
  int freq[RECORD_NOTES][GBSND_CHANNELS];
  int volume[RECORD_NOTES][GBSND_CHANNELS];
  int SOUND_amplify;
  int lasttimer;
  int deltatime;
  int motor_cnt;

} P_SND;

typedef struct
{
   int (*main)(int addr);
   int gbl_start;

   /*function pointer */
   int (*dram_clear)(int d, int n);
   void (*risc_copy)(int d, int *s, int n);
   void (*flush_cache)(unsigned int d, unsigned int size);
   void (*vcx_service)();
   void (*echo_main)(int n);
   void (*micro_engine)();
   
   void (*init_pad)();
   unsigned int (*key_process)(); 
   void (*init_disp)();
   void (*ld_yuvpal)(unsigned char *p0, unsigned char *p1);
   void (*put_image)();
   void (*hscale)(int w);
   void (*hscale_recover)();
   int  (*sound_loop)(int p);
   int  (*init_sound)(int R);
   void (*sync_snd)();
   void (*trash_snd)();
   int  (*get_timer)();
  
   /*const data */
   int  rom_start;
   int  ram_start;
   int  ram_size;
   int  rgb_start;
   int  rgb_size;
   int  sndstk_start;
   int  sndstk_size;
   int  snddp_start;
   int  snddp_size;
   int  stack_start;
   int  stack_size;
   int  palette_start;
   int  zntable_start;
   int  sram_start;
   int  sprites_start;
   int  conv_start;
   
   /*global variables */
   char *palette_tbl;
   int *sunplus_tbl;
   char *conv_tbl;
   int  u_period;
   int game_misc;
   int game_buff_size;
   int   is_game;
   int   file_size;
   int   play_item;
   int   is_scrambled;
   int   is_v;
   int   name_id;
   int   snd_lengths;
   int   noise_freq;
   int   game_width;

   /*VGB data*/
   void (*vput_image)(V_Image *img, int x, int y, int w, int h);
   int (*gbl_timer)();
   int (*mvd_timer)();
   int sgb_start;
   int sgb_size;
   int io_start;
   int io_size;
   int cycles_start;
   int cyclescb_start;
   int gb2z80_start;
   int z802gb_start;
   int hflip_start;
   int daatable_start;
   int t2_period;
   char *p_cyclescb;
   char *p_gb2z80;
   char *p_z802gb;
   char *p_hflip;
   unsigned short *p_daatable;

} *GBL;

#ifdef INES_CD
GBLDEF0(P_SND  *NSNDChip);
GBLDEF0(int *P_Lengths);
GBLDEF0(int *Noise_freq);
#endif

/** GBSND ****************************************************/
/** This data structure stores GameBoy sound chip state.    **/
/*************************************************************/
typedef struct
{
  unsigned char *R;             /* Current register contents from FF00h */

  /* Sound parameters */
  int Count[GBSND_CHANNELS];    /* Counter to the sound's end (ms) */
  int Length[GBSND_CHANNELS];   /* Sound length (ms) */
  int Freq[GBSND_CHANNELS];     /* Frequency (Hz) */
  int Volume[GBSND_CHANNELS];   /* Volume (0..15) */
  int ChVolume[GBSND_CHANNELS]; /* Master volume (0..14) */

  /* Volume Envelopes */
  int VCount[GBSND_CHANNELS];   /* Counter to the next step (ms) */
  int VPeriod[GBSND_CHANNELS];  /* Time between steps (ms) */
  int VDir[GBSND_CHANNELS];     /* Increment (+1) or decrement (-1) */

  /* CH1 Frequency Sweep */
  int FCount;                   /* Counter to the next step (ms) */
  int FPeriod;                  /* Time between steps (ms) */
  int FDir;                     /* Increment (+1) or decrement (-1) */
  int FNumber;                  /* Frequency number 000h-7FFh */
  int FStep;                    /* FNum[t+1]=FNum[t]+FNum[t]/(2^FStep) */

  int First;                    /* First Sound() channel to use */

  int rp;
  int wp;
  int freq[RECORD_NOTES][GBSND_CHANNELS];
  int volume[RECORD_NOTES][GBSND_CHANNELS];
  int SOUND_amplify;
  int lasttimer;
  int deltatime;
  int savedvol[GBSND_CHANNELS];
  int savedfreq[GBSND_CHANNELS];
  int lastvol[GBSND_CHANNELS];

} VGB_SND;

GBLDEF0(VGB_SND *VSNDChip);           /* GameBoy sound chip state         */


void VGB_PutImage(V_Image *Img,int X,int Y,int W,int H);

#ifdef SOUND
int SoundLoop(int);
int CD_InitSound(int Rate);
void CD_TrashSound(void);
#endif

#endif
#endif /*GAME_H*/