XFB in SC reverted back to its previous behavior (thx donko). But still hacked in DC (still a FIXME).

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@2019 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Core/Core/Src/Core.cpp

@@ -318,6 +318,7 @@ THREAD_RETURN EmuThread(void *pArg)
 	VideoInitialize.pMemoryBase         = Memory::base;
 	VideoInitialize.pKeyPress           = Callback_KeyPress;
 	VideoInitialize.bWii                = _CoreParameter.bWii;
+	VideoInitialize.bUseDualCore		= _CoreParameter.bUseDualCore;
 	Plugins.FreeVideo(); // This is needed for Stop and Start
 	Plugins.GetVideo()->Initialize(&VideoInitialize); // Call the dll
  

Source/Core/Core/Src/HW/SystemTimers.cpp

@@ -133,7 +133,7 @@ int
 	// For DC watchdog hack
 	// Once every 4 frame-period seems to be enough (arbitrary taking 60fps as the ref).
 	// TODO: make it VI output frame rate compliant (30/60 and 25/50)
-	// Assuming game's frame-finish-watchdog wait more than 10 emulated frame-period before starting its mess.
+	// Assuming game's frame-finish-watchdog wait more than 4 emulated frame-period before starting its mess.
 	FAKE_GP_WATCHDOG_PERIOD = GetTicksPerSecond() / 15;
 ///////////////////////////////////
 

Source/Core/Core/Src/HW/VideoInterface.cpp

@@ -516,7 +516,7 @@ void Update()
 			int yOffset = 0;
 
 			// (mb2) hack: We request XFB updates from CPUthread (here) only when homebrews use directly XFB without FIFO and CP
-			if (CommandProcessor::IsCommandProcessorNotUsed())
+			if (!Core::GetStartupParameter().bUseDualCore || CommandProcessor::IsCommandProcessorNotUsed())
 			{
 				if (NextXFBRender == 1)
 				{
@@ -547,6 +547,7 @@ void Update()
 				{
 					int fbWidth = m_VIHorizontalStepping.FieldSteps * 16;
 					int fbHeight = (m_VIHorizontalStepping.FbSteps / m_VIHorizontalStepping.FieldSteps) * m_VIVerticalTimingRegister.ACV;
+					//LOGV(VIDEOINTERFACE,2,"(VI->XFBUpdate): ptr: %08x | %ix%i", (u32)xfbptr, fbWidth, fbHeight);
 					if (Core::GetStartupParameter().bUseDualCore)
 						// scheduled on EmuThread in DC mode
 						video->Video_UpdateXFB(xfbPtr, fbWidth, fbHeight, yOffset, TRUE); 

Source/Core/VideoCommon/Src/Fifo.cpp

@@ -100,7 +100,7 @@ void Video_SendFifoData(u8* _uData, u32 len)
 void Fifo_EnterLoop(const SVideoInitialize &video_initialize)
 {
     SCPFifoStruct &_fifo = *video_initialize.pCPFifo;
-	u32 distToSend;
+	s32 distToSend;
 
 #ifdef _WIN32
     // TODO(ector): Don't peek so often!
@@ -111,14 +111,14 @@ void Fifo_EnterLoop(const SVideoInitialize &video_initialize)
     {
         if (_fifo.CPReadWriteDistance == 0)
 			Common::SleepCurrentThread(1);
-        //etc...
 
+		// Draw XFB if CP/GPfifo isn't used
 		if (g_XFBUpdateRequested)
 		{
 			Video_UpdateXFB(NULL, 0, 0, 0, FALSE);
-			g_XFBUpdateRequested = FALSE;
 			video_initialize.pCopiedToXFB();
 		}
+
         // check if we are able to run this buffer
         if ((_fifo.bFF_GPReadEnable) && _fifo.CPReadWriteDistance && !(_fifo.bFF_BPEnable && _fifo.bFF_Breakpoint))
         {
@@ -162,7 +162,6 @@ void Fifo_EnterLoop(const SVideoInitialize &video_initialize)
 				if ( readPtr >= _fifo.CPEnd) 
 					readPtr = _fifo.CPBase;
 #else
-					// sending the whole CPReadWriteDistance
 					distToSend = _fifo.CPReadWriteDistance;
 					// send 1024B chunk max lenght to have better control over PeekMessages' period
 					distToSend = distToSend > 1024 ? 1024 : distToSend;
@@ -177,7 +176,7 @@ void Fifo_EnterLoop(const SVideoInitialize &video_initialize)
 				}
 				Video_SendFifoData(uData, distToSend);
                 Common::SyncInterlockedExchange((LONG*)&_fifo.CPReadPointer, readPtr);
-                Common::SyncInterlockedExchangeAdd((LONG*)&_fifo.CPReadWriteDistance, -(s64)distToSend);
+                Common::SyncInterlockedExchangeAdd((LONG*)&_fifo.CPReadWriteDistance, -distToSend);
 			}
 			//video_initialize.pLog("..........................IDLE",FALSE);
 			Common::SyncInterlockedExchange((LONG*)&_fifo.CPReadIdle, 1);

Source/PluginSpecs/pluginspecs_video.h

@@ -72,6 +72,7 @@ typedef struct
 	unsigned char                   *pVIRegs;
 	void *pMemoryBase;
 	bool bWii;
+	bool bUseDualCore;
 } SVideoInitialize;
 
 /////////////////////////////////////////////////////////////////////////////////////////////////////

Source/Plugins/Plugin_VideoOGL/Src/BPStructs.cpp

@@ -442,12 +442,16 @@ void BPWritten(int addr, int changes, int newval)
 					// the number of lines copied is determined by the y scale * source efb height
 					float yScale = bpmem.dispcopyyscale / 256.0f;
 					float xfbLines = bpmem.copyTexSrcWH.y + 1.0f * yScale;
-					//XFB_Write(Memory_GetPtr(bpmem.copyTexDest << 5), multirc, (bpmem.copyMipMapStrideChannels << 4), (int)xfbLines);
-					// TODO: compact this below if everyone is happy with it
 					u8* pXFB = Memory_GetPtr(bpmem.copyTexDest << 5);
 					u32 dstWidth = (bpmem.copyMipMapStrideChannels << 4);
 					u32 dstHeight = (u32)xfbLines;
 					XFB_Write(pXFB, multirc, dstWidth, dstHeight);
+					// FIXME: we draw XFB from here in DC mode.
+					// Bad hack since we can have multiple EFB to XFB copy before a draw.
+					// Plus we should use width and height from VI regs (see VI->Update()).
+					// Dixit donkopunchstania for the info.
+					//DebugLog("(EFB to XFB->XFB_Draw): ptr: %08x | %ix%i", (u32)pXFB, dstWidth, dstHeight);
+					if (g_VideoInitialize.bUseDualCore)
 						XFB_Draw(pXFB, dstWidth, dstHeight, 0);
 				}
 				else

Source/Plugins/Plugin_VideoOGL/Src/main.cpp

@@ -360,22 +360,24 @@ unsigned int Video_Screenshot(TCHAR* _szFilename)
     return FALSE;
 }
 
-
 void Video_UpdateXFB(u8* _pXFB, u32 _dwWidth, u32 _dwHeight, s32 _dwYOffset, bool scheduling)
 {
 	if(g_Config.bUseXFB && XFB_isInit())
 	{
-		if (scheduling) // DC mode
+		if (scheduling) // from CPU in DC without fifo&CP (some 2D homebrews)
 		{
 			XFB_SetUpdateArgs(_pXFB, _dwWidth, _dwHeight, _dwYOffset);
 			g_XFBUpdateRequested = TRUE;
 		}
-		else	// SC mode or DC without fifo&CP
+		else
 		{
-			if (_pXFB) // from CPU
+			if (_pXFB) // from CPU in SC mode
 				XFB_Draw(_pXFB, _dwWidth, _dwHeight, _dwYOffset);
-			else // from GP
+			else // from GP in DC without fifo&CP (some 2D homebrews)
+			{
 				XFB_Draw();
+				g_XFBUpdateRequested = FALSE;
+			}
 		}
 	}
 }