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[Project64] Cleanup Audio.cpp

This commit is contained in:
zilmar 2015-11-15 11:31:56 +11:00
parent 03a41c7cd3
commit 089b036cfe
2 changed files with 123 additions and 124 deletions
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205
Source/Project64/N64 System/Mips/Audio.cpp
View File

@ -12,144 +12,143 @@
CAudio::CAudio() CAudio::CAudio()
{ {
Reset(); Reset();
} }
CAudio::~CAudio() CAudio::~CAudio()
{ {
} }
void CAudio::Reset() void CAudio::Reset()
{ {
m_SecondBuff = 0; m_SecondBuff = 0;
m_Status = 0; m_Status = 0;
m_BytesPerSecond = 0; m_BytesPerSecond = 0;
m_CountsPerByte = g_System->AiCountPerBytes(); // should be calculated ... see below, instead allow from user settings m_CountsPerByte = g_System->AiCountPerBytes(); // should be calculated ... see below, instead allow from user settings
if (m_CountsPerByte == 0) m_CountsPerByte = 500; // If the user has no defined value, grant a default and we will calculate if (m_CountsPerByte == 0) m_CountsPerByte = 500; // If the user has no defined value, grant a default and we will calculate
m_FramesPerSecond = 60; m_FramesPerSecond = 60;
} }
DWORD CAudio::GetLength() DWORD CAudio::GetLength()
{ {
WriteTraceF(TraceAudio,__FUNCTION__ ": Start (m_SecondBuff = %d)",m_SecondBuff); WriteTraceF(TraceAudio, __FUNCTION__ ": Start (m_SecondBuff = %d)", m_SecondBuff);
DWORD TimeLeft = g_SystemTimer->GetTimer(CSystemTimer::AiTimerInterrupt), Res = 0; DWORD TimeLeft = g_SystemTimer->GetTimer(CSystemTimer::AiTimerInterrupt), Res = 0;
if (TimeLeft > 0) if (TimeLeft > 0)
{ {
Res = (TimeLeft / m_CountsPerByte); Res = (TimeLeft / m_CountsPerByte);
} }
WriteTraceF(TraceAudio,__FUNCTION__ ": Done (res = %d, TimeLeft = %d)",Res, TimeLeft); WriteTraceF(TraceAudio, __FUNCTION__ ": Done (res = %d, TimeLeft = %d)", Res, TimeLeft);
return (Res+3)&~3; return (Res + 3)&~3;
} }
DWORD CAudio::GetStatus() DWORD CAudio::GetStatus()
{ {
WriteTraceF(TraceAudio,__FUNCTION__ ": m_Status = %X",m_Status); WriteTraceF(TraceAudio, __FUNCTION__ ": m_Status = %X", m_Status);
return m_Status; return m_Status;
} }
void CAudio::LenChanged() void CAudio::LenChanged()
{ {
WriteTraceF(TraceAudio,__FUNCTION__ ": Start (g_Reg->AI_LEN_REG = %d)",g_Reg->AI_LEN_REG); WriteTraceF(TraceAudio, __FUNCTION__ ": Start (g_Reg->AI_LEN_REG = %d)", g_Reg->AI_LEN_REG);
if (g_Reg->AI_LEN_REG != 0) if (g_Reg->AI_LEN_REG != 0)
{ {
if (g_Reg->AI_LEN_REG >= 0x40000) if (g_Reg->AI_LEN_REG >= 0x40000)
{ {
WriteTraceF(TraceAudio,__FUNCTION__ ": *** Ignoring Write, To Large (%X)",g_Reg->AI_LEN_REG); WriteTraceF(TraceAudio, __FUNCTION__ ": *** Ignoring Write, To Large (%X)", g_Reg->AI_LEN_REG);
} else { }
m_Status |= ai_busy; else {
DWORD AudioLeft = g_SystemTimer->GetTimer(CSystemTimer::AiTimerInterrupt); m_Status |= ai_busy;
if (m_SecondBuff == 0) DWORD AudioLeft = g_SystemTimer->GetTimer(CSystemTimer::AiTimerInterrupt);
{ if (m_SecondBuff == 0)
if (AudioLeft == 0) {
{ if (AudioLeft == 0)
WriteTraceF(TraceAudio, __FUNCTION__ ": Set Timer AI_LEN_REG: %d m_CountsPerByte: %d", g_Reg->AI_LEN_REG, m_CountsPerByte); {
g_SystemTimer->SetTimer(CSystemTimer::AiTimerInterrupt, g_Reg->AI_LEN_REG * m_CountsPerByte, false); WriteTraceF(TraceAudio, __FUNCTION__ ": Set Timer AI_LEN_REG: %d m_CountsPerByte: %d", g_Reg->AI_LEN_REG, m_CountsPerByte);
} g_SystemTimer->SetTimer(CSystemTimer::AiTimerInterrupt, g_Reg->AI_LEN_REG * m_CountsPerByte, false);
else }
{ else
WriteTraceF(TraceAudio, __FUNCTION__ ": Increasing Second Buffer (m_SecondBuff %d Increase: %d)", m_SecondBuff, g_Reg->AI_LEN_REG); {
m_SecondBuff += g_Reg->AI_LEN_REG; WriteTraceF(TraceAudio, __FUNCTION__ ": Increasing Second Buffer (m_SecondBuff %d Increase: %d)", m_SecondBuff, g_Reg->AI_LEN_REG);
m_Status |= ai_full; m_SecondBuff += g_Reg->AI_LEN_REG;
} m_Status |= ai_full;
} }
else }
{ else
g_Notify->BreakPoint(__FILEW__, __LINE__); {
} g_Notify->BreakPoint(__FILEW__, __LINE__);
} }
} }
else }
{ else
WriteTraceF(TraceAudio,__FUNCTION__ ": *** Reset Timer to 0"); {
g_SystemTimer->StopTimer(CSystemTimer::AiTimerBusy); WriteTraceF(TraceAudio, __FUNCTION__ ": *** Reset Timer to 0");
g_SystemTimer->StopTimer(CSystemTimer::AiTimerInterrupt); g_SystemTimer->StopTimer(CSystemTimer::AiTimerBusy);
m_SecondBuff = 0; g_SystemTimer->StopTimer(CSystemTimer::AiTimerInterrupt);
m_Status = 0; m_SecondBuff = 0;
} m_Status = 0;
}
if (g_Plugins->Audio()->AiLenChanged != NULL) if (g_Plugins->Audio()->AiLenChanged != NULL)
{ {
g_Plugins->Audio()->AiLenChanged(); g_Plugins->Audio()->AiLenChanged();
} }
WriteTraceF(TraceAudio,__FUNCTION__ ": Done"); WriteTraceF(TraceAudio, __FUNCTION__ ": Done");
} }
void CAudio::InterruptTimerDone() void CAudio::InterruptTimerDone()
{ {
WriteTraceF(TraceAudio,__FUNCTION__ ": Start (m_SecondBuff = %d)",m_SecondBuff); WriteTraceF(TraceAudio, __FUNCTION__ ": Start (m_SecondBuff = %d)", m_SecondBuff);
m_Status &= ~ai_full; m_Status &= ~ai_full;
g_Reg->MI_INTR_REG |= MI_INTR_AI; g_Reg->MI_INTR_REG |= MI_INTR_AI;
g_Reg->CheckInterrupts(); g_Reg->CheckInterrupts();
if (m_SecondBuff != 0) if (m_SecondBuff != 0)
{ {
g_SystemTimer->SetTimer(CSystemTimer::AiTimerInterrupt,m_SecondBuff * m_CountsPerByte,false); g_SystemTimer->SetTimer(CSystemTimer::AiTimerInterrupt, m_SecondBuff * m_CountsPerByte, false);
m_SecondBuff = 0; m_SecondBuff = 0;
} }
else else
{ {
m_Status &= ~ai_busy; m_Status &= ~ai_busy;
} }
if (g_Reg->m_AudioIntrReg == 0) if (g_Reg->m_AudioIntrReg == 0)
{ {
g_System->SyncToAudio(); g_System->SyncToAudio();
} }
WriteTrace(TraceAudio,__FUNCTION__ ": Done"); WriteTrace(TraceAudio, __FUNCTION__ ": Done");
} }
void CAudio::BusyTimerDone() void CAudio::BusyTimerDone()
{ {
WriteTraceF(TraceAudio,__FUNCTION__ ": Start (m_SecondBuff = %d)",m_SecondBuff); WriteTraceF(TraceAudio, __FUNCTION__ ": Start (m_SecondBuff = %d)", m_SecondBuff);
g_Notify->BreakPoint(__FILEW__,__LINE__); g_Notify->BreakPoint(__FILEW__, __LINE__);
m_Status &= ~ai_busy; m_Status &= ~ai_busy;
} }
void CAudio::SetViIntr ( DWORD VI_INTR_TIME ) void CAudio::SetViIntr(DWORD VI_INTR_TIME)
{ {
double CountsPerSecond = (DWORD)((double)VI_INTR_TIME * m_FramesPerSecond); double CountsPerSecond = (DWORD)((double)VI_INTR_TIME * m_FramesPerSecond);
if (m_BytesPerSecond != 0 && (g_System->AiCountPerBytes() == 0)) if (m_BytesPerSecond != 0 && (g_System->AiCountPerBytes() == 0))
{ {
m_CountsPerByte = (int)((double)CountsPerSecond / (double)m_BytesPerSecond); m_CountsPerByte = (int)((double)CountsPerSecond / (double)m_BytesPerSecond);
} }
} }
void CAudio::SetFrequency(DWORD Dacrate, DWORD System)
void CAudio::SetFrequency (DWORD Dacrate, DWORD System)
{ {
WriteTraceF(TraceAudio,__FUNCTION__ "(Dacrate: %X System: %d): AI_BITRATE_REG = %X",Dacrate,System,g_Reg->AI_BITRATE_REG); WriteTraceF(TraceAudio, __FUNCTION__ "(Dacrate: %X System: %d): AI_BITRATE_REG = %X", Dacrate, System, g_Reg->AI_BITRATE_REG);
DWORD Frequency; DWORD Frequency;
switch (System) switch (System)
{ {
case SYSTEM_PAL: Frequency = 49656530 / (Dacrate + 1); break; case SYSTEM_PAL: Frequency = 49656530 / (Dacrate + 1); break;
case SYSTEM_MPAL: Frequency = 48628316 / (Dacrate + 1); break; case SYSTEM_MPAL: Frequency = 48628316 / (Dacrate + 1); break;
default: Frequency = 48681812 / (Dacrate + 1); break; default: Frequency = 48681812 / (Dacrate + 1); break;
} }
//nBlockAlign = 16 / 8 * 2; //nBlockAlign = 16 / 8 * 2;
m_BytesPerSecond = Frequency * 4; m_BytesPerSecond = Frequency * 4;
//m_BytesPerSecond = 194532; //m_BytesPerSecond = 194532;
//m_BytesPerSecond = 128024; //m_BytesPerSecond = 128024;
m_FramesPerSecond = System == SYSTEM_PAL ? 50 : 60; m_FramesPerSecond = System == SYSTEM_PAL ? 50 : 60;
} }

42
Source/Project64/N64 System/Mips/Audio.h
View File

@ -11,29 +11,29 @@
#pragma once #pragma once
class CAudio class CAudio
{ {
enum enum
{ {
ai_full = 0x80000000, ai_full = 0x80000000,
ai_busy = 0x40000000, ai_busy = 0x40000000,
}; };
public: public:
CAudio(); CAudio();
~CAudio(); ~CAudio();
DWORD GetLength (); DWORD GetLength();
DWORD GetStatus (); DWORD GetStatus();
void LenChanged (); void LenChanged();
void InterruptTimerDone(); void InterruptTimerDone();
void BusyTimerDone (); void BusyTimerDone();
void Reset (); void Reset();
void SetViIntr ( DWORD VI_INTR_TIME ); void SetViIntr(DWORD VI_INTR_TIME);
void SetFrequency ( DWORD Dacrate, DWORD System ); void SetFrequency(DWORD Dacrate, DWORD System);
private: private:
DWORD m_SecondBuff; DWORD m_SecondBuff;
DWORD m_Status; DWORD m_Status;
DWORD m_BytesPerSecond; DWORD m_BytesPerSecond;
int m_CountsPerByte; int m_CountsPerByte;
int m_FramesPerSecond; int m_FramesPerSecond;
}; };