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Revert r5681

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5685 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
ayuanx
2010-06-13 23:26:22 +00:00
parent 841311a77f
commit 7e27914b45
2 changed files with 51 additions and 26 deletions
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54
Source/Core/VideoCommon/Src/Fifo.cpp
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@ -148,7 +148,7 @@ void Fifo_EnterLoop(const SVideoInitialize &video_initialize)
VideoFifo_CheckSwapRequest();
// check if we are able to run this buffer
while (_fifo.bFF_GPReadEnable && _fifo.CPReadWriteDistance)
while (_fifo.bFF_GPReadEnable && ((!_fifo.bFF_BPEnable && _fifo.CPReadWriteDistance) || (_fifo.bFF_BPEnable && !_fifo.bFF_Breakpoint)))
{
if (!fifoStateRun)
break;
@ -160,17 +160,46 @@ void Fifo_EnterLoop(const SVideoInitialize &video_initialize)
u8 *uData = video_initialize.pGetMemoryPointer(readPtr);
// NOTICE_LOG(BOOT, "readPtr: %08x uData %08x", readPtr, uData);
distToSend = _fifo.CPReadWriteDistance;
// send 1024B chunk max length to have better control over PeekMessages' period
distToSend = distToSend > 1024 ? 1024 : distToSend;
// add 32 bytes because the cp end points to the start of the last 32 byte chunk
if ((distToSend + readPtr) >= (_fifo.CPEnd + 32)) // TODO: better?
// If we are in BP mode we only send 32B chunks to Video plugin for BP checking
if (_fifo.bFF_BPEnable)
{
distToSend =(_fifo.CPEnd + 32) - readPtr;
readPtr = _fifo.CPBase;
// Sometimes we have already exceeded the BP even before it is set
// so careful check is required
if (
(readPtr == _fifo.CPBreakpoint) ||
//(readPtr <= _fifo.CPBreakpoint && readPtr + 32 > _fifo.CPBreakpoint) ||
(readPtr <= _fifo.CPWritePointer && _fifo.CPWritePointer < _fifo.CPBreakpoint) ||
(readPtr <= _fifo.CPWritePointer && readPtr > _fifo.CPBreakpoint) ||
(readPtr > _fifo.CPBreakpoint && _fifo.CPBreakpoint > _fifo.CPWritePointer)
)
{
Common::AtomicStore(_fifo.bFF_Breakpoint, 1);
CommandProcessor::UpdateInterruptsFromVideoPlugin(true);
CommandProcessor::FifoCriticalLeave();
break;
}
distToSend = 32;
if ( readPtr >= _fifo.CPEnd)
readPtr = _fifo.CPBase;
else
readPtr += 32;
}
// If we are not in BP mode we send all the chunk we have to speed up
else
readPtr += distToSend;
{
distToSend = _fifo.CPReadWriteDistance;
// send 1024B chunk max length to have better control over PeekMessages' period
distToSend = distToSend > 1024 ? 1024 : distToSend;
// add 32 bytes because the cp end points to the start of the last 32 byte chunk
if ((distToSend + readPtr) >= (_fifo.CPEnd + 32)) // TODO: better?
{
distToSend =(_fifo.CPEnd + 32) - readPtr;
readPtr = _fifo.CPBase;
}
else
readPtr += distToSend;
}
// Execute new instructions found in uData
Fifo_SendFifoData(uData, distToSend);
@ -186,13 +215,6 @@ void Fifo_EnterLoop(const SVideoInitialize &video_initialize)
VideoFifo_CheckEFBAccess();
VideoFifo_CheckSwapRequest();
}
if (_fifo.bFF_BPEnable && !_fifo.bFF_Breakpoint)
{
Common::AtomicStore(_fifo.bFF_Breakpoint, 1);
CommandProcessor::UpdateInterruptsFromVideoPlugin(true);
}
CommandProcessor::SetFifoIdleFromVideoPlugin();
if (EmuRunning)
Common::YieldCPU();