void UpdateFifoFlag()
{
	if (gUcode == UNDEFINED_UCODE)
		return;
	
	if (gUcode == 1)
	{
		*AudioInfo.AI_STATUS_REG |= AI_STATUS_FIFO_FULL;

		if (remainingBytes <= MAXBUFFER-LOCK_SIZE) {
			*AudioInfo.AI_STATUS_REG &= ~AI_STATUS_FIFO_FULL;
			*AudioInfo.MI_INTR_REG |= MI_INTR_AI;
			AudioInfo.CheckInterrupts();
		}
	}
	else
	{
		

		if (*AudioInfo.AI_LEN_REG <= MAXBUFFER-LOCK_SIZE) {
			*AudioInfo.AI_STATUS_REG &= ~AI_STATUS_FIFO_FULL;
			*AudioInfo.MI_INTR_REG |= MI_INTR_AI;
			AudioInfo.CheckInterrupts();
		}
		else
			*AudioInfo.AI_STATUS_REG |= AI_STATUS_FIFO_FULL;

	}
}
Exemple #2
0
EXPORT void CALL AiLenChanged (void) {
	int count, offset=0, temp;
	DWORD dwStatus;

	if (!lpdsbuf) {
		*AudioInfo.AI_STATUS_REG &= ~AI_STATUS_FIFO_FULL;
		*AudioInfo.MI_INTR_REG |= MI_INTR_AI;
		AudioInfo.CheckInterrupts();
		return;}
	else if (gUcode == UNDEFINED_UCODE)
	{
		gUcode = 88;
		ucodeDetected = TRUE;
	}

//	if (gUcode == UNDEFINED_UCODE) {DetectMicrocode();  }

	if ((gUcode != 4) /*&& (gUcode != UNDEFINED_UCODE)*/)//Hack for MusyX
        *AudioInfo.AI_STATUS_REG |= AI_STATUS_FIFO_FULL; 
	
	//if (*AudioInfo.AI_LEN_REG == 0) { return; } //this breaks sound in Zelda load states!!




	Snd1Len = (*AudioInfo.AI_LEN_REG & 0x3FFF8);

	temp = Snd1Len;
	Snd1ReadPos = AudioInfo.RDRAM + (*AudioInfo.AI_DRAM_ADDR_REG & 0x00FFFFF8);
	if (Playing) {
		for (count = 0; count < 3; count ++) {
			if (SndBuffer[count] == Buffer_Playing) {
				offset = (count + 1) & 3;
			}
		}
	} else {
		offset = 0;
	}

	for (count = 0; count < 3; count ++) {
		if (SndBuffer[(count + offset) & 3] == Buffer_HalfFull) {
			FillBuffer((count + offset) & 3);
			count = 3;
		}
	}
	for (count = 0; count < 3; count ++) {
		if (SndBuffer[(count + offset) & 3] == Buffer_Full) {
			FillBuffer((count + offset + 1) & 3);
			FillBuffer((count + offset + 2) & 3);
			count = 20;
		}
	}
	if (count < 10) {
		FillBuffer((0 + offset) & 3);
		FillBuffer((1 + offset) & 3);
		FillBuffer((2 + offset) & 3);
	}
}
Exemple #3
0
EXPORT void CALL Update (BOOL Wait) {
	DWORD dwEvt;

	if (!lpdsbuf) {
		*AudioInfo.AI_STATUS_REG &= ~AI_STATUS_FIFO_FULL;
		*AudioInfo.MI_INTR_REG |= MI_INTR_AI;
		AudioInfo.CheckInterrupts();
		return;
	}
		else if (gUcode == UNDEFINED_UCODE)
	{
		gUcode = 88;
		ucodeDetected = TRUE;
	}

	if (Wait) {
		dwEvt = MsgWaitForMultipleObjects(NUMCAPTUREEVENTS,rghEvent,FALSE,
			INFINITE,QS_ALLINPUT);
	} else {
		dwEvt = MsgWaitForMultipleObjects(NUMCAPTUREEVENTS,rghEvent,FALSE,
			0,QS_ALLINPUT);
	}
	dwEvt -= WAIT_OBJECT_0;
	if (dwEvt == NUMCAPTUREEVENTS) {
		return;
	}

	switch (dwEvt) {
	case 0: 
		SndBuffer[0] = Buffer_Empty;
		FillSectionWithSilence(0);
		SndBuffer[1] = Buffer_Playing;
		FillBuffer(2);
		FillBuffer(0);
		break;
	case 1: 
		SndBuffer[1] = Buffer_Empty;
		FillSectionWithSilence(1);
		SndBuffer[2] = Buffer_Playing;
		FillBuffer(0);
		FillBuffer(1);
		break;
	case 2: 
		SndBuffer[2] = Buffer_Empty;
		FillSectionWithSilence(2);
		SndBuffer[0] = Buffer_Playing;
		FillBuffer(1);
		FillBuffer(2);		
		break;
	}
}
Exemple #4
0
void FillBuffer ( int buffer ) {
	//void AddToBuffer (void *sndptr, DWORD sndlen);
    DWORD dwBytesLocked;
    VOID *lpvData;

	if (!audioIsPlaying)
		StartAudio();


	if (gUcode != 4)
	if (Snd1Len == 0) { 
		
		*AudioInfo.AI_STATUS_REG &= ~AI_STATUS_FIFO_FULL;
		*AudioInfo.MI_INTR_REG |= MI_INTR_AI;
		AudioInfo.CheckInterrupts();

		return; }
	if (SndBuffer[buffer] == Buffer_Empty) {
		if (Snd1Len >= BufferSize) {
			if (FAILED( IDirectSoundBuffer8_Lock(lpdsbuf, BufferSize * buffer,BufferSize, &lpvData, &dwBytesLocked,
				NULL, NULL, 0  ) ) )
			{
				IDirectSoundBuffer8_Unlock(lpdsbuf, lpvData, dwBytesLocked, NULL, 0 );
				//DisplayError("FAILED lock");
				return;
			}
			Soundmemcpy(lpvData,Snd1ReadPos,dwBytesLocked);
			//AddToBuffer (lpvData, dwBytesLocked);
			SndBuffer[buffer] = Buffer_Full;
			Snd1ReadPos += dwBytesLocked;
			Snd1Len -= dwBytesLocked;
			IDirectSoundBuffer8_Unlock(lpdsbuf, lpvData, dwBytesLocked, NULL, 0 );
		} else {
			if (FAILED( IDirectSoundBuffer8_Lock(lpdsbuf, BufferSize * buffer,Snd1Len, &lpvData, &dwBytesLocked,
				NULL, NULL, 0  ) ) )
			{
				IDirectSoundBuffer8_Unlock(lpdsbuf, lpvData, dwBytesLocked, NULL, 0 );
				//DisplayError("FAILED lock");
				return;
			}
			Soundmemcpy(lpvData,Snd1ReadPos,dwBytesLocked);
			//AddToBuffer (lpvData, dwBytesLocked);
			SndBuffer[buffer] = Buffer_HalfFull;
			Snd1ReadPos += dwBytesLocked;
			SpaceLeft = BufferSize - Snd1Len;
			Snd1Len = 0;
			IDirectSoundBuffer8_Unlock(lpdsbuf, lpvData, dwBytesLocked, NULL, 0 );
		}
	} else if (SndBuffer[buffer] == Buffer_HalfFull) {
		if (Snd1Len >= SpaceLeft) {
			if (FAILED( IDirectSoundBuffer8_Lock(lpdsbuf, (BufferSize * (buffer + 1)) - SpaceLeft ,SpaceLeft, &lpvData,
				&dwBytesLocked, NULL, NULL, 0  ) ) )
			{
				IDirectSoundBuffer8_Unlock(lpdsbuf, lpvData, dwBytesLocked, NULL, 0 );
				//DisplayError("FAILED lock");
				return;
			}
			Soundmemcpy(lpvData,Snd1ReadPos,dwBytesLocked);
			//AddToBuffer (lpvData, dwBytesLocked);
			SndBuffer[buffer] = Buffer_Full;
			Snd1ReadPos += dwBytesLocked;
			Snd1Len -= dwBytesLocked;
			IDirectSoundBuffer8_Unlock(lpdsbuf, lpvData, dwBytesLocked, NULL, 0 );
		} else {
			if (FAILED( IDirectSoundBuffer8_Lock(lpdsbuf, (BufferSize * (buffer + 1)) - SpaceLeft,Snd1Len, &lpvData, &dwBytesLocked,
				NULL, NULL, 0  ) ) )
			{
				IDirectSoundBuffer8_Unlock(lpdsbuf, lpvData, dwBytesLocked, NULL, 0 );
				//DisplayError("FAILED lock");
				return;
			}
			Soundmemcpy(lpvData,Snd1ReadPos,dwBytesLocked);
			//AddToBuffer (lpvData, dwBytesLocked);
			SndBuffer[buffer] = Buffer_HalfFull;
			Snd1ReadPos += dwBytesLocked;
			SpaceLeft = SpaceLeft - Snd1Len;
			Snd1Len = 0;
			IDirectSoundBuffer8_Unlock(lpdsbuf, lpvData, dwBytesLocked, NULL, 0 );
		}
	}

	if (gUcode != 4)
	if ((Snd1Len == 0) /*&& (gUcode != UNDEFINED_UCODE)*/) {
		*AudioInfo.AI_STATUS_REG &= ~AI_STATUS_FIFO_FULL;
		*AudioInfo.MI_INTR_REG |= MI_INTR_AI;
		AudioInfo.CheckInterrupts();
	}
}