Initial commit:

PhysX 3.4.0 Update @ 21294896
APEX 1.4.0 Update @ 21275617

[CL 21300167]

1 files changed, 166 insertions, 0 deletions

diff --git a/APEX_1.4/framework/src/windows/PhysXIndicator.cpp b/APEX_1.4/framework/src/windows/PhysXIndicator.cpp
new file mode 100644
index 00000000..0ea99185
--- /dev/null
+++ b/APEX_1.4/framework/src/windows/PhysXIndicator.cpp
@@ -0,0 +1,166 @@
+/*
+ * Copyright (c) 2008-2015, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * NVIDIA CORPORATION and its licensors retain all intellectual property
+ * and proprietary rights in and to this software, related documentation
+ * and any modifications thereto.  Any use, reproduction, disclosure or
+ * distribution of this software and related documentation without an express
+ * license agreement from NVIDIA CORPORATION is strictly prohibited.
+ */
+
+// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
+// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.  
+
+#include "PhysXIndicator.h"
+#include "AgMMFile.h"
+
+#include <windows.h>
+#if _MSC_VER >= 1800
+#include <VersionHelpers.h>	// for IsWindowsVistaOrGreater
+#endif
+#include <stdio.h>
+
+using namespace nvidia;
+using namespace physx;
+
+// Scope-based to indicate to NV driver that CPU PhysX is happening
+PhysXCpuIndicator::PhysXCpuIndicator() :
+	mPhysXDataPtr(NULL)
+{
+	bool alreadyExists = false;
+	
+	mPhysXDataPtr = (physx::NvPhysXToDrv_Data_V1*)PhysXCpuIndicator::createIndicatorBlock(mSharedMemConfig, alreadyExists);
+	
+	if (!mPhysXDataPtr)
+	{
+		return;
+	}
+	
+	if (!alreadyExists)
+	{
+		mPhysXDataPtr->bGpuPhysicsPresent = 0;
+		mPhysXDataPtr->bCpuPhysicsPresent = 1;
+	}
+	else
+	{
+		mPhysXDataPtr->bCpuPhysicsPresent++;
+	}
+
+	// init header last to prevent race conditions
+	// this must be done because the driver may have already created the shared memory block,
+	// thus alreadyExists may be true, even if PhysX hasn't been initialized
+	NvPhysXToDrv_Header_Init(mPhysXDataPtr->header);
+}
+
+PhysXCpuIndicator::~PhysXCpuIndicator()
+{
+	if (!mPhysXDataPtr)
+	{
+		return;
+	}
+	
+	mPhysXDataPtr->bCpuPhysicsPresent--;
+	
+	mPhysXDataPtr = NULL;
+	mSharedMemConfig.destroy();
+}
+
+void* PhysXCpuIndicator::createIndicatorBlock(AgMMFile &mmfile, bool &alreadyExists)
+{
+	char configName[128];
+
+    // Get the windows version (we can only create Global\\ namespace objects in XP)
+#if _MSC_VER >= 1800
+	// Windows 8.1 SDK, which comes with VS2013, deprecated the GetVersionEx function
+	// Windows 8.1 SDK added the IsWindowsVistaOrGreater helper function which we use instead
+	BOOL bIsVistaOrGreater = IsWindowsVistaOrGreater();
+#else
+	OSVERSIONINFOEX windowsVersionInfo;
+
+	/**
+		Operating system		Version number
+		----------------		--------------
+		Windows 7				6.1
+		Windows Server 2008 R2	6.1
+		Windows Server 2008		6.0
+		Windows Vista			6.0
+		Windows Server 2003 R2	5.2
+		Windows Server 2003		5.2
+		Windows XP				5.1
+		Windows 2000			5.0
+	**/
+	windowsVersionInfo.dwOSVersionInfoSize = sizeof(windowsVersionInfo);
+	GetVersionEx((LPOSVERSIONINFO)&windowsVersionInfo);
+
+	bool bIsVistaOrGreater = (windowsVersionInfo.dwMajorVersion >= 6);
+#endif
+
+	if (bIsVistaOrGreater)
+	{
+		NvPhysXToDrv_Build_SectionName((uint32_t)GetCurrentProcessId(), configName);
+	}
+	else
+	{
+		NvPhysXToDrv_Build_SectionNameXP((uint32_t)GetCurrentProcessId(), configName);
+	}
+
+	mmfile.create(configName, sizeof(physx::NvPhysXToDrv_Data_V1), alreadyExists);
+
+	return mmfile.getAddr();
+}
+
+//-----------------------------------------------------------------------------------------------------------
+
+PhysXGpuIndicator::PhysXGpuIndicator() :
+	mPhysXDataPtr(NULL),
+	mAlreadyExists(false),
+	mGpuTrigger(false)
+{
+	mPhysXDataPtr = (physx::NvPhysXToDrv_Data_V1*)PhysXCpuIndicator::createIndicatorBlock(mSharedMemConfig, mAlreadyExists);
+	
+	// init header last to prevent race conditions
+	// this must be done because the driver may have already created the shared memory block,
+	// thus alreadyExists may be true, even if PhysX hasn't been initialized
+	NvPhysXToDrv_Header_Init(mPhysXDataPtr->header);
+}
+
+PhysXGpuIndicator::~PhysXGpuIndicator()
+{
+	gpuOff();
+	
+	mPhysXDataPtr = NULL;
+	mSharedMemConfig.destroy();
+}
+
+// Explicit set functions to indicate to NV driver that GPU PhysX is happening
+void PhysXGpuIndicator::gpuOn()
+{
+	if (!mPhysXDataPtr || mGpuTrigger)
+	{
+		return;
+	}
+
+	if (!mAlreadyExists)
+	{
+		mPhysXDataPtr->bGpuPhysicsPresent = 1;
+		mPhysXDataPtr->bCpuPhysicsPresent = 0;
+	}
+	else
+	{
+		mPhysXDataPtr->bGpuPhysicsPresent++;
+	}
+
+	mGpuTrigger = true;
+}
+
+void PhysXGpuIndicator::gpuOff()
+{
+	if (!mPhysXDataPtr || !mGpuTrigger)
+	{
+		return;
+	}
+
+	mPhysXDataPtr->bGpuPhysicsPresent--;
+
+	mGpuTrigger = false;
+}