play.h

来自「一个两碟控制的VCD的代码,两碟之间的转动及连续播放,已大量生产的CODE.」· C头文件 代码 · 共 86 行

/* SCCSID @(#)play.h	1.1 11/19/97 */ 


#ifndef PLAYWAVEPCM_H
#define PLAYWAVEPCM_H

#include "../driver/common.h"
#include "newcomm.h"

#define FALSE	0
#define TRUE	1

#define buscon_d2a_runbit       buscon_audio_out_runbit
#define buscon_dma_deltas_d2a   buscon_dma_deltas_audio_out
#define buscon_dma_xpos_d2a     buscon_dma_xpos_audio_out
#define buscon_dma_ypos_d2a     buscon_dma_ypos_audio_out
#define buscon_is_running(ch) \
  (mvd[buscon_dma_status] & cat3(buscon_,ch,_runbit))
	/* 0x200087c0L */
#define buscon_enable(ch)  mvd[buscon_dma_enable] = cat3(buscon_,ch,_runbit)

#define buscon_irq_enable(ch) do {                      \
  do {} while (!buscon_is_running(ch));                 \
  mvd[riface_irqsuppress] = 0; asm("nop"); asm("nop");  \
  gbl_buscon_irqmasks |= cat3(buscon_,ch,_runbit);      \
  mvd[buscon_dma_irqmasks] = gbl_buscon_irqmasks;       \
} while (0)

#define buscon_xfer(ch, mode, addr, dx, dy) do {                           \
  mvd[cat2(buscon_dma_deltas_,ch)] = ((0x80 - (dy)) << 9) | (0x200 - (dx));\
  mvd[cat2(buscon_dma_xpos_,ch)] = (mode) | a2x(addr);                     \
  mvd[cat2(buscon_dma_ypos_,ch)] = a2y(addr);                              \
} while(0)

#define done_but_needed(ch) \
    ((!buscon_is_running(ch))&&(mask & buscon_##ch##_runbit))


void LOW_set_audio_sampling_frequency(int freq_code);
void LOW_init_audio(void);
void PCM_init(void);
void PCM_take_out(void);
void PCM_start_take_out(void);
void BUSCON_interrupt_service(void);


#ifdef SUPPORT_CALLBACK
typedef void (*s_callback) (unsigned char **, int *);
#endif

void WAV_fillbuf(BYTE *src, BYTE *dst, int srcsize);
void PCM_initbuf();
void PCM_switchbuf();
void PCM_play(BYTE *src, int srcsize);


#ifndef SUPPORT_CALLBACK
void PCM_startplay(int srcsize);
#else
void PCM_startplay(BYTE *src, int srcsize, s_callback callback);
#endif

#ifndef SUPPORT_CALLBACK
void ADPCM_startplay(BYTE *src, int srcsize);
#else
void ADPCM_startplay(BYTE *src, int srcsize, s_callback callback);
#endif

void AU_startplay(BYTE *src, int srcsize);
int AU_continue();
int PCM_continue();
int ADPCM_continue();

#ifndef SUPPORT_CALLBACK
int PlayWAVE(unsigned char *pDataWAVE, int SizeWAVE);
#else
int PlayWAVE(unsigned char *pDataWAVE, int SizeWAVE, s_callback callback);
#endif

int PlayAU(unsigned char *pDataAU, int SizeAU);

int PlayAbort(void);
int GetStatePlay(void);

#endif