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1. This should fix Issue 1625 (Bizarre Auto Frame Limit)

Browse Source 
Now the frame limiter yields on CPU thread, not as before on GPU thread mistakenly

2. Fixed clear of VI interrupts
   I guess VI interrupts are not used at all, because they were never cleared before

3. Made GPU thread 0% processor usage when paused whatever your active config is.
   I tried the event approach but somehow the thread resume latency is excessively long (Who can tell me why?)

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@4790 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
ayuanx
2010-01-07 20:01:41 +00:00
parent 64167bcb60
commit 9cbd508181
15 changed files with 141 additions and 227 deletions
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9
Source/Core/VideoCommon/Src/CommandProcessor.cpp
View File

@ -383,7 +383,6 @@ void Write16(const u16 _Value, const u32 _Address)
// Touching that game is a no-go so I don't want to take the risk :p
while (fifo.bFF_GPReadEnable && ((!fifo.bFF_BPEnable && fifo.CPReadWriteDistance) || (fifo.bFF_BPEnable && !fifo.bFF_Breakpoint)))
{
Fifo_RunLoop();
s_fifoIdleEvent.MsgWait();
}
}
@ -414,8 +413,6 @@ void Write16(const u16 _Value, const u32 _Address)
Common::AtomicStore(fifo.bFF_Breakpoint, 0);
}
Fifo_RunLoop();
DEBUG_LOG(COMMANDPROCESSOR,"\t write to CTRL_REGISTER : %04x", _Value);
DEBUG_LOG(COMMANDPROCESSOR, "\t GPREAD %s | LINK %s | BP %s || Init %s | OvF %s | UndF %s"
, fifo.bFF_GPReadEnable ? "ON" : "OFF"
@ -572,10 +569,9 @@ void WaitForFrameFinish()
{
while ((fake_GPWatchdogLastToken == fifo.Fake_GPWDToken) && fifo.bFF_GPReadEnable && ((!fifo.bFF_BPEnable && fifo.CPReadWriteDistance) || (fifo.bFF_BPEnable && !fifo.bFF_Breakpoint)));
{
Fifo_RunLoop();
s_fifoIdleEvent.MsgWait();
}
fake_GPWatchdogLastToken = fifo.Fake_GPWDToken;
}
@ -594,7 +590,6 @@ void STACKALIGN GatherPipeBursted()
fifo.CPWritePointer += GATHER_PIPE_SIZE;
Common::AtomicAdd(fifo.CPReadWriteDistance, GATHER_PIPE_SIZE);
Fifo_RunLoop();
// High watermark overflow handling (hacked way)
if (fifo.CPReadWriteDistance > fifo.CPHiWatermark)
@ -619,7 +614,6 @@ void STACKALIGN GatherPipeBursted()
// Wait for GPU to catch up
while (fifo.CPReadWriteDistance > fifo.CPLoWatermark && fifo.bFF_GPReadEnable && (!fifo.bFF_BPEnable || (fifo.bFF_BPEnable && !fifo.bFF_Breakpoint)))
{
Fifo_RunLoop();
s_fifoIdleEvent.MsgWait();
}
}
@ -725,7 +719,6 @@ void UpdateFifoRegister()
dist = (wp - fifo.CPBase) + ((fifo.CPEnd + GATHER_PIPE_SIZE) - rp);
Common::AtomicStore(fifo.CPReadWriteDistance, dist);
Fifo_RunLoop();
if (!g_VideoInitialize.bOnThread)
CatchUpGPU();

11
Source/Core/VideoCommon/Src/Fifo.cpp
View File

@ -34,6 +34,7 @@ extern u8* g_pVideoData;
namespace
{
static volatile bool fifoStateRun = false;
static volatile bool EmuRunning = false;
static u8 *videoBuffer;
static Common::Event fifo_run_event;
// STATE_TO_SAVE
@ -100,9 +101,11 @@ void Fifo_ExitLoopNonBlocking()
fifo_run_event.Set();
}
void Fifo_RunLoop()
void Fifo_RunLoop(bool run)
{
fifo_run_event.Set();
EmuRunning = run;
if (run)
fifo_run_event.Set();
}
// Description: Fifo_EnterLoop() sends data through this function.
@ -210,9 +213,7 @@ void Fifo_EnterLoop(const SVideoInitialize &video_initialize)
}
CommandProcessor::SetFifoIdleFromVideoPlugin();
// "VideoFifo_CheckEFBAccess()" & "VideoFifo_CheckSwapRequest()" should be
// moved to a more suitable place than inside function "Fifo_EnterLoop()"
if (g_ActiveConfig.bEFBAccessEnable || g_ActiveConfig.bUseXFB)
if (EmuRunning)
Common::YieldCPU();
else
fifo_run_event.MsgWait();

2
Source/Core/VideoCommon/Src/Fifo.h
View File

@ -36,7 +36,7 @@ void Fifo_SendFifoData(u8* _uData, u32 len);
void Fifo_EnterLoop(const SVideoInitialize &video_initialize);
void Fifo_ExitLoop();
void Fifo_ExitLoopNonBlocking();
void Fifo_RunLoop();
void Fifo_RunLoop(bool run);
void Fifo_DoState(PointerWrap &f);