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DTK: Adjustments attempting to increase accuracy

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This commit is contained in:
booto
2014-07-24 02:37:00 +08:00
parent e91db62f1b
commit a6a4229865
4 changed files with 89 additions and 56 deletions
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29
Source/Core/Core/HW/AudioInterface.cpp
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@ -58,7 +58,6 @@ This file mainly deals with the [Drive I/F], however [AIDFR] controls
#include "Core/CoreTiming.h"
#include "Core/HW/AudioInterface.h"
#include "Core/HW/CPU.h"
#include "Core/HW/DVDInterface.h"
#include "Core/HW/MMIO.h"
#include "Core/HW/ProcessorInterface.h"
#include "Core/HW/SystemTimers.h"
@ -177,8 +176,18 @@ void RegisterMMIO(MMIO::Mapping* mmio, u32 base)
MMIO::ComplexWrite<u32>([](u32, u32 val) {
AICR tmpAICtrl(val);
m_Control.AIINTMSK = tmpAICtrl.AIINTMSK;
m_Control.AIINTVLD = tmpAICtrl.AIINTVLD;
if (m_Control.AIINTMSK != tmpAICtrl.AIINTMSK)
{
DEBUG_LOG(AUDIO_INTERFACE, "Change AIINTMSK to %d", tmpAICtrl.AIINTMSK);
m_Control.AIINTMSK = tmpAICtrl.AIINTMSK;
}
if (m_Control.AIINTVLD != tmpAICtrl.AIINTVLD)
{
DEBUG_LOG(AUDIO_INTERFACE, "Change AIINTVLD to %d", tmpAICtrl.AIINTVLD);
m_Control.AIINTVLD = tmpAICtrl.AIINTVLD;
}
// Set frequency of streaming audio
if (tmpAICtrl.AISFR != m_Control.AISFR)
@ -205,9 +214,6 @@ void RegisterMMIO(MMIO::Mapping* mmio, u32 base)
m_Control.PSTAT = tmpAICtrl.PSTAT;
g_LastCPUTime = CoreTiming::GetTicks();
// Tell Drive Interface to start/stop streaming
DVDInterface::g_bStream = tmpAICtrl.PSTAT;
CoreTiming::RemoveEvent(et_AI);
CoreTiming::ScheduleEvent(((int)GetAIPeriod() / 2), et_AI);
}
@ -251,6 +257,7 @@ void RegisterMMIO(MMIO::Mapping* mmio, u32 base)
mmio->Register(base | AI_INTERRUPT_TIMING,
MMIO::DirectRead<u32>(&m_InterruptTiming),
MMIO::ComplexWrite<u32>([](u32, u32 val) {
DEBUG_LOG(AUDIO_INTERFACE, "AI_INTERRUPT_TIMING=%08x@%08x", val, PowerPC::ppcState.pc);
m_InterruptTiming = val;
CoreTiming::RemoveEvent(et_AI);
CoreTiming::ScheduleEvent(((int)GetAIPeriod() / 2), et_AI);
@ -279,14 +286,22 @@ static void IncreaseSampleCount(const u32 _iAmount)
{
if (m_Control.PSTAT)
{
u32 old_SampleCounter = m_SampleCounter + 1;
m_SampleCounter += _iAmount;
if (m_Control.AIINTVLD && (m_SampleCounter >= m_InterruptTiming))
if ((m_InterruptTiming - old_SampleCounter) <= (m_SampleCounter - old_SampleCounter))
{
DEBUG_LOG(AUDIO_INTERFACE, "GenerateAudioInterrupt %08x:%08x @ %08x m_Control.AIINTVLD=%d", m_SampleCounter, m_InterruptTiming, PowerPC::ppcState.pc, m_Control.AIINTVLD);
GenerateAudioInterrupt();
}
}
}
bool IsPlaying()
{
return (m_Control.PSTAT == 1);
}
unsigned int GetAIDSampleRate()
{
return g_AIDSampleRate;