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Updated how Fixed audio works with dual buffers and AI Interrupts

This commit is contained in:
zilmar 2012-11-03 10:27:19 +11:00
parent 8af55ad6c0
commit ffb69091a1
1 changed files with 13 additions and 15 deletions
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28
Source/Project64/N64 System/Mips/Audio.cpp
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@ -23,7 +23,7 @@ DWORD CAudio::GetLength ( void )
DWORD TimeLeft = _SystemTimer->GetTimer(CSystemTimer::AiTimer);
if (TimeLeft > 0)
{
return TimeLeft / m_CountsPerByte;
return (TimeLeft / m_CountsPerByte) + m_SecondBuff;
}
return 0;
}
@ -38,15 +38,14 @@ void CAudio::LenChanged ( void )
WriteTraceF(TraceAudio,__FUNCTION__ ": _Reg->AI_LEN_REG = %d",_Reg->AI_LEN_REG);
if (_Reg->AI_LEN_REG != 0)
{
DWORD NewLength = GetLength() + _Reg->AI_LEN_REG;
_SystemTimer->SetTimer(CSystemTimer::AiTimer,NewLength * m_CountsPerByte,false);
WriteTraceF(TraceAudio,__FUNCTION__ ": NewLength = %d",NewLength);
/*if (m_CurrentLength == 0) {
m_CurrentLength = _Reg->AI_LEN_REG;
if (GetLength() == 0)
{
WriteTraceF(TraceAudio,__FUNCTION__ ": Set Timer AI_LEN_REG: %d m_CountsPerByte: %d",_Reg->AI_LEN_REG,m_CountsPerByte);
_SystemTimer->SetTimer(CSystemTimer::AiTimer,_Reg->AI_LEN_REG * m_CountsPerByte,false);
} else {
m_SecondBuff = _Reg->AI_LEN_REG;
//m_Status |= 0x80000000;
}*/
m_Status |= 0x80000000;
}
} else {
_SystemTimer->StopTimer(CSystemTimer::AiTimer);
m_SecondBuff = 0;
@ -61,17 +60,16 @@ void CAudio::LenChanged ( void )
void CAudio::TimerDone ( void )
{
/*_Reg->MI_INTR_REG |= MI_INTR_AI;
_Reg->CheckInterrupts();
if (m_SecondBuff != 0) {
_SystemTimer->SetTimer(CSystemTimer::AiTimer,m_SecondBuff * m_CountsPerByte,false);
if (m_SecondBuff == 0)
{
return;
}
m_CurrentLength = m_SecondBuff;
_SystemTimer->SetTimer(CSystemTimer::AiTimer,m_SecondBuff * m_CountsPerByte,false);
_Reg->MI_INTR_REG |= MI_INTR_AI;
_Reg->CheckInterrupts();
m_SecondBuff = 0;
m_Status &= 0x7FFFFFFF;
*/
m_SecondBuff = 0;
}
void CAudio::SetViIntr ( DWORD /*VI_INTR_TIME*/ )