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Implemented accurate BP and accurate Watermark, this should eventually retire FAKE_Watchdog.

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AbortFrame is not implemented yet.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5699 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
ayuanx
2010-06-14 21:55:40 +00:00
parent 6c164cd161
commit 673b9ac179
5 changed files with 130 additions and 190 deletions
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29
Source/Core/VideoCommon/Src/Fifo.cpp
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@ -148,38 +148,31 @@ void Fifo_EnterLoop(const SVideoInitialize &video_initialize)
VideoFifo_CheckSwapRequest();
// check if we are able to run this buffer
while (_fifo.bFF_GPReadEnable && ((!_fifo.bFF_BPEnable && _fifo.CPReadWriteDistance) || (_fifo.bFF_BPEnable && !_fifo.bFF_Breakpoint)))
while (_fifo.bFF_GPReadEnable && _fifo.CPReadWriteDistance && (!_fifo.bFF_BPEnable || (_fifo.bFF_BPEnable && !_fifo.bFF_Breakpoint)))
{
if (!fifoStateRun)
break;
_fifo.CPCmdIdle = false;
CommandProcessor::FifoCriticalEnter();
// Create pointer to video data and send it to the VideoPlugin
u32 readPtr = _fifo.CPReadPointer;
u8 *uData = video_initialize.pGetMemoryPointer(readPtr);
// NOTICE_LOG(BOOT, "readPtr: %08x uData %08x", readPtr, uData);
// DEBUG_LOG(BOOT, "readPtr: %08x uData %08x", readPtr, uData);
// If we are in BP mode we only send 32B chunks to Video plugin for BP checking
if (_fifo.bFF_BPEnable)
{
// 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)
)
if (readPtr == _fifo.CPBreakpoint)
{
Common::AtomicStore(_fifo.bFF_Breakpoint, 1);
CommandProcessor::UpdateInterruptsFromVideoPlugin(true);
if (_fifo.bFF_BPInt)
CommandProcessor::UpdateInterruptsFromVideoPlugin();
CommandProcessor::FifoCriticalLeave();
break;
}
distToSend = 32;
distToSend = 32;
if (readPtr + 32 >= _fifo.CPEnd)
readPtr = _fifo.CPBase;
else
@ -191,7 +184,6 @@ void Fifo_EnterLoop(const SVideoInitialize &video_initialize)
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 (readPtr + distToSend >= _fifo.CPEnd)
{
distToSend = _fifo.CPEnd - readPtr;
@ -215,6 +207,13 @@ void Fifo_EnterLoop(const SVideoInitialize &video_initialize)
VideoFifo_CheckEFBAccess();
VideoFifo_CheckSwapRequest();
}
if (!_fifo.CPReadIdle && _fifo.CPReadWriteDistance <= _fifo.CPLoWatermark)
{
Common::AtomicStore(_fifo.CPReadIdle, true);
CommandProcessor::UpdateInterruptsFromVideoPlugin();
}
_fifo.CPCmdIdle = true;
CommandProcessor::SetFifoIdleFromVideoPlugin();
if (EmuRunning)
Common::YieldCPU();