C++ (Cpp) cdda_start_play Beispiele

Beispiel #1

Datei: cd_sys.c Projekt: pcercuei/picodrive

PICO_INTERNAL int Play_CDD_c3(void)
{
	_msf MSF;
	int delay, new_lba;

	CHECK_TRAY_OPEN
	CHECK_CD_PRESENT

	// MSF of the track to play in TC buffer

	MSF.M = (Pico_mcd->s68k_regs[0x38+10+2] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+3] & 0xF);
	MSF.S = (Pico_mcd->s68k_regs[0x38+10+4] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+5] & 0xF);
	MSF.F = (Pico_mcd->s68k_regs[0x38+10+6] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+7] & 0xF);

	Pico_mcd->scd.Cur_Track = MSF_to_Track(&MSF);

	new_lba = MSF_to_LBA(&MSF);
	delay = new_lba - Pico_mcd->scd.Cur_LBA;
	if (delay < 0) delay = -delay;
	delay >>= 12;

	if (Pico_mcd->scd.Cur_LBA > 0 && delay < 13)
		// based on genplus GX
		delay = 13;

	Pico_mcd->scd.Cur_LBA = new_lba;
	CDC_Update_Header();

	cdprintf("Read : Cur LBA = %d, M=%d, S=%d, F=%d", Pico_mcd->scd.Cur_LBA, MSF.M, MSF.S, MSF.F);

	if (Pico_mcd->scd.Status_CDD != PLAYING) delay += 20;

	Pico_mcd->scd.Status_CDD = PLAYING;
	Pico_mcd->cdd.Status = 0x0102;
//	Pico_mcd->cdd.Status = COMM_OK;

	if (Pico_mcd->scd.File_Add_Delay == 0) Pico_mcd->scd.File_Add_Delay = delay;

	if (Pico_mcd->scd.Cur_Track == 1)
	{
		Pico_mcd->s68k_regs[0x36] |=  0x01;				// DATA
	}
	else
	{
		Pico_mcd->s68k_regs[0x36] &= ~0x01;				// AUDIO
		cdda_start_play();
	}

	if (Pico_mcd->scd.Cur_Track == 100) Pico_mcd->cdd.Minute = 0x0A02;
	else Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);
	Pico_mcd->cdd.Seconde = 0;
	Pico_mcd->cdd.Frame = 0;
	Pico_mcd->cdd.Ext = 0;

	Pico_mcd->scd.Status_CDC |= 1;			// Read data with CDC

	Pico_mcd->scd.CDD_Complete = 1;
	return 0;
}

Beispiel #2

Datei: cdd.c Projekt: libretro/picodrive

/* FIXME: use cdd_read_audio() instead */
static void cdd_change_track(int index, int lba)
{
  int i, base, lba_offset, lb_len;

  for (i = index; i > 0; i--)
    if (cdd.toc.tracks[i].fd != NULL)
      break;

  Pico_mcd->cdda_stream = cdd.toc.tracks[i].fd;
  base = cdd.toc.tracks[index].offset;
  lba_offset = lba - cdd.toc.tracks[index].start;
  lb_len = cdd.toc.tracks[index].end - cdd.toc.tracks[index].start;

  elprintf(EL_CD, "play #%d lba %d base %d", index, lba, base);

  cdda_start_play(base, lba_offset, lb_len);
}

Beispiel #3

Datei: cd_sys.c Projekt: pcercuei/picodrive

PICO_INTERNAL int Resume_CDD_c7(void)
{
	CHECK_TRAY_OPEN
	CHECK_CD_PRESENT

	Pico_mcd->scd.Cur_Track = LBA_to_Track(Pico_mcd->scd.Cur_LBA);

#ifdef DEBUG_CD
	{
		_msf MSF;
		LBA_to_MSF(Pico_mcd->scd.Cur_LBA, &MSF);
		cdprintf("Resume read : Cur LBA = %d, M=%d, S=%d, F=%d", Pico_mcd->scd.Cur_LBA, MSF.M, MSF.S, MSF.F);
	}
#endif

	Pico_mcd->scd.Status_CDD = PLAYING;
	Pico_mcd->cdd.Status = 0x0102;

	if (Pico_mcd->scd.Cur_Track == 1)
	{
		Pico_mcd->s68k_regs[0x36] |=  0x01;				// DATA
	}
	else
	{
		Pico_mcd->s68k_regs[0x36] &= ~0x01;				// AUDIO
		cdda_start_play();
	}

	if (Pico_mcd->scd.Cur_Track == 100) Pico_mcd->cdd.Minute = 0x0A02;
	else Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);
	Pico_mcd->cdd.Seconde = 0;
	Pico_mcd->cdd.Frame = 0;
	Pico_mcd->cdd.Ext = 0;

	Pico_mcd->scd.Status_CDC |= 1;			// Read data with CDC

	Pico_mcd->scd.CDD_Complete = 1;
	return 0;
}