Linux build fix.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5725 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Core/Common/Src/Thread.cpp

@@ -254,6 +254,11 @@ namespace Common
 		Sleep(ms);
 	}
 	
+	void SwitchCurrentThread()
+	{
+		SwitchToThread();
+	}
+	
 	typedef struct tagTHREADNAME_INFO
 	{
 		DWORD dwType; // must be 0x1000
@@ -423,6 +428,10 @@ namespace Common
 		usleep(1000 * ms);
 	}
 	
+	void SwitchCurrentThread()
+	{
+		usleep(1000 * 1);
+	}
 
 	void SetCurrentThreadName(const TCHAR* szThreadName)
 	{

Source/Core/Common/Src/Thread.h

@@ -205,6 +205,7 @@ namespace Common
 	
 	void InitThreading();
 	void SleepCurrentThread(int ms);
+	void SwitchCurrentThread();	// On Linux, this is equal to sleep 1ms
 
 	// YieldCPU: This function is only effective on HyperThreading CPU
 	// Use this function during a spin-wait to make the current thread

Source/Core/VideoCommon/Src/CommandProcessor.cpp

@@ -596,28 +596,14 @@ void STACKALIGN GatherPipeBursted()
 
 	if (g_VideoInitialize.bOnThread)
 	{
-		// The interrupt latency in Dolphin is much longer than Hardware, so we must be more vigilant on Watermark
-		if (!m_CPStatusReg.OverflowHiWatermark && fifo.CPReadWriteDistance >= HiWatermark_Tighter)
-		{
-			m_CPStatusReg.OverflowHiWatermark = true;
-			if (m_CPCtrlReg.FifoOverflowIntEnable)
-				UpdateInterrupts();
-		}
-		// A little trick to prevent FIFO from overflown in dual core mode
-		// Unfortunately we cannot do the same for single core
-		int cnt = 0;
-		while (fifo.CPReadWriteDistance	> fifo.CPEnd - fifo.CPBase)
-		{
-			// Avoid deadlock
-			if (cnt >= 100)
-				break;
-			cnt++;
-			SwitchToThread();
-		}
+		// A little trick to prevent FIFO from overflown in dual core mode (n < 100 to avoid dead lock)
+		for (int cnt = 0; fifo.CPReadWriteDistance > fifo.CPEnd - fifo.CPBase && cnt < 100; cnt++)
+			Common::SwitchCurrentThread();
 	}
 	else
 	{
 		CatchUpGPU();
+	}
 
 	// The interrupt latency in Dolphin is much longer than Hardware, so we must be more vigilant on Watermark
 	if (!m_CPStatusReg.OverflowHiWatermark && fifo.CPReadWriteDistance >= HiWatermark_Tighter)
@@ -626,7 +612,6 @@ void STACKALIGN GatherPipeBursted()
 		if (m_CPCtrlReg.FifoOverflowIntEnable)
 			UpdateInterrupts();
 	}
-	}
 
 	_assert_msg_(COMMANDPROCESSOR, fifo.CPReadWriteDistance	<= fifo.CPEnd - fifo.CPBase,
 		"FIFO is overflown by GatherPipe !\nCPU thread is too fast, lower the HiWatermark may help.");