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Speed back to dolpihn: - Revert Read16 CPRead fifo hack for fix RE0. This hack only solve RE0 but brings slowdown in games like RE Umbrella, etc. - Move isFifoBusy again in the fifo loop and use s_fifoIdleEvent for AbortFrame. Note: if you can play RE0 only deactivate PanicAlert. These opdecoding error seems harmless. Some day this wiil be fixed in right way.

Browse Source 
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@7107 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
Marcos Vitali 2011-02-08 01:11:11 +00:00
parent fc370c5136
commit f0adc3adb4
2 changed files with 8 additions and 13 deletions
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16
Source/Core/VideoCommon/Src/CommandProcessor.cpp
View File

@ -288,15 +288,15 @@ void Read16(u16& _rReturnValue, const u32 _Address)
return;
case FIFO_READ_POINTER_LO:
//_rReturnValue = ReadLow (fifo.CPReadPointer);
_rReturnValue = ReadLow (fifo.CPReadPointer);
// hack: CPU will always believe fifo is empty and on idle
_rReturnValue = ReadLow (fifo.CPWritePointer);
//_rReturnValue = ReadLow (fifo.CPWritePointer);
DEBUG_LOG(COMMANDPROCESSOR, "read FIFO_READ_POINTER_LO : %04x", _rReturnValue);
return;
case FIFO_READ_POINTER_HI:
//_rReturnValue = ReadHigh(fifo.CPReadPointer);
_rReturnValue = ReadHigh(fifo.CPReadPointer);
// hack: CPU will always believe fifo is empty and on idle
_rReturnValue = ReadHigh(fifo.CPWritePointer);
//_rReturnValue = ReadHigh(fifo.CPWritePointer);
DEBUG_LOG(COMMANDPROCESSOR, "read FIFO_READ_POINTER_HI : %04x", _rReturnValue);
return;
@ -503,11 +503,6 @@ void Write16(const u16 _Value, const u32 _Address)
if (!tmpCtrl.ClearFifoUnderflow && tmpCtrl.ClearFifoOverflow)
bProcessFifoToLoWatemark = true;
if (tmpCtrl.ClearFifoUnderflow && tmpCtrl.ClearFifoOverflow)
ProcessFifoAllDistance();
if (!tmpCtrl.ClearFifoUnderflow && !tmpCtrl.ClearFifoOverflow)
ProcessFifoAllDistance();
}
else
{
@ -814,8 +809,7 @@ void SetFifoIdleFromVideoPlugin()
void AbortFrame()
{
fifo.bFF_GPReadEnable = false;
while (CommandProcessor::isFifoBusy)
Common::YieldCPU();
s_fifoIdleEvent.Wait();
GPFifo::ResetGatherPipe();
ResetVideoBuffer();
fifo.CPReadPointer = fifo.CPWritePointer;

5
Source/Core/VideoCommon/Src/Fifo.cpp
View File

@ -179,10 +179,11 @@ void Fifo_EnterLoop()
// This call is pretty important in DualCore mode and must be called in the FIFO Loop.
// If we don't, s_swapRequested or s_efbAccessRequested won't be set to false
// leading the CPU thread to wait in Video_BeginField or Video_AccessEFB thus slowing things down.
VideoFifo_CheckAsyncRequest();
VideoFifo_CheckAsyncRequest();
CommandProcessor::isFifoBusy = false;
}
CommandProcessor::isFifoBusy = false;
CommandProcessor::SetFifoIdleFromVideoPlugin();
if (EmuRunning)