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DC idle skipping part 2: video thread is woken up when "OnIdle".

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For testing purpose only (I can't test with lots of games) because it may break some sync. Besides, I'm not satisfied with the way things are done.
So just uncomment "//#define THREAD_VIDEO_WAKEUP_ONIDLE" in thread.h in order to test it.
Works fine with movies, 2D and simple 3D in ZWW at least.
If it's ok I'll clean up the code.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@658 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
memberTwo.mb2
2008-09-24 10:52:58 +00:00
parent e4725675fd
commit da088e62ad
6 changed files with 56 additions and 8 deletions
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25
Source/Core/VideoCommon/Src/Fifo.cpp
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@ -127,20 +127,36 @@ void Video_SendFifoData(u8* _uData)
void Fifo_EnterLoop(const SVideoInitialize &video_initialize)
{
SCPFifoStruct &_fifo = *video_initialize.pCPFifo;
#if defined(THREAD_VIDEO_WAKEUP_ONIDLE) && defined(_WIN32)
HANDLE hEventOnIdle= OpenEventA(EVENT_ALL_ACCESS,FALSE,(LPCSTR)"EventOnIdle");
if (hEventOnIdle==NULL) PanicAlert("Fifo_EnterLoop() -> EventOnIdle NULL");
#endif
// TODO(ector): Don't peek so often!
while (video_initialize.pPeekMessages())
{
#if defined(THREAD_VIDEO_WAKEUP_ONIDLE) && defined(_WIN32)
if (MsgWaitForMultipleObjects(1, &hEventOnIdle, FALSE, 1L, QS_ALLEVENTS) == WAIT_ABANDONED)
break;
#endif
if (_fifo.CPReadWriteDistance < 1) //fifo.CPLoWatermark)
#if defined(THREAD_VIDEO_WAKEUP_ONIDLE) && defined(_WIN32)
continue;
#else
Common::SleepCurrentThread(1);
#endif
//etc...
// check if we are able to run this buffer
if ((_fifo.bFF_GPReadEnable) && !(_fifo.bFF_BPEnable && _fifo.bFF_Breakpoint))
{
int count = 200;
#if defined(THREAD_VIDEO_WAKEUP_ONIDLE) && defined(_WIN32)
while(_fifo.CPReadWriteDistance > 0)
#else
int count = 200;
while(_fifo.CPReadWriteDistance > 0 && count)
{
#endif
{
// check if we are on a breakpoint
if (_fifo.bFF_BPEnable)
{
@ -169,10 +185,15 @@ void Fifo_EnterLoop(const SVideoInitialize &video_initialize)
_fifo.CPReadPointer = _fifo.CPBase;
//LOG(COMMANDPROCESSOR, "BUFFER LOOP");
}
#ifndef THREAD_VIDEO_WAKEUP_ONIDLE
count--;
#endif
}
}
}
#if defined(THREAD_VIDEO_WAKEUP_ONIDLE) && defined(_WIN32)
CloseHandle(hEventOnIdle);
#endif
}