nuclear@0: /************************************************************************************
nuclear@0: 
nuclear@0: Filename    :   Util_SystemInfo.cpp
nuclear@0: Content     :   Various operations to get information about the system
nuclear@0: Created     :   September 26, 2014
nuclear@0: Author      :   Kevin Jenkins
nuclear@0: 
nuclear@0: Copyright   :   Copyright 2014 Oculus VR, LLC All Rights reserved.
nuclear@0: 
nuclear@0: Licensed under the Oculus VR Rift SDK License Version 3.2 (the "License"); 
nuclear@0: you may not use the Oculus VR Rift SDK except in compliance with the License, 
nuclear@0: which is provided at the time of installation or download, or which 
nuclear@0: otherwise accompanies this software in either electronic or hard copy form.
nuclear@0: 
nuclear@0: You may obtain a copy of the License at
nuclear@0: 
nuclear@0: http://www.oculusvr.com/licenses/LICENSE-3.2 
nuclear@0: 
nuclear@0: Unless required by applicable law or agreed to in writing, the Oculus VR SDK 
nuclear@0: distributed under the License is distributed on an "AS IS" BASIS,
nuclear@0: WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
nuclear@0: See the License for the specific language governing permissions and
nuclear@0: limitations under the License.
nuclear@0: 
nuclear@0: ************************************************************************************/
nuclear@0: 
nuclear@0: #include "Util_SystemInfo.h"
nuclear@0: #include "../Kernel/OVR_Timer.h"
nuclear@0: #include "../Kernel/OVR_Threads.h"
nuclear@0: #include "../Kernel/OVR_Log.h"
nuclear@0: #include "../Kernel/OVR_Array.h"
nuclear@0: 
nuclear@0: /*
nuclear@0: // Disabled, can't link RiftConfigUtil
nuclear@0: #ifdef OVR_OS_WIN32
nuclear@0: #define _WIN32_DCOM
nuclear@0: #include <comdef.h>
nuclear@0: #include <Wbemidl.h>
nuclear@0: 
nuclear@0: # pragma comment(lib, "wbemuuid.lib")
nuclear@0: #endif
nuclear@0: */
nuclear@0: 
nuclear@0: 
nuclear@0: namespace OVR { namespace Util {
nuclear@0: 
nuclear@0: // From http://blogs.msdn.com/b/oldnewthing/archive/2005/02/01/364563.aspx
nuclear@0: #if defined (OVR_OS_WIN64) || defined (OVR_OS_WIN32)
nuclear@0: 
nuclear@0: #pragma comment(lib, "version.lib")
nuclear@0: 
nuclear@0: typedef BOOL(WINAPI *LPFN_ISWOW64PROCESS) (HANDLE, PBOOL);
nuclear@0: BOOL Is64BitWindows()
nuclear@0: {
nuclear@0: #if defined(_WIN64)
nuclear@0:     return TRUE;  // 64-bit programs run only on Win64
nuclear@0: #elif defined(_WIN32)
nuclear@0:     // 32-bit programs run on both 32-bit and 64-bit Windows
nuclear@0:     // so must sniff
nuclear@0:     BOOL f64 = FALSE;
nuclear@0:     LPFN_ISWOW64PROCESS fnIsWow64Process;
nuclear@0: 
nuclear@0:     fnIsWow64Process = (LPFN_ISWOW64PROCESS)GetProcAddress(GetModuleHandle(L"kernel32"), "IsWow64Process");
nuclear@0:     if (NULL != fnIsWow64Process)
nuclear@0:     {
nuclear@0:         return fnIsWow64Process(GetCurrentProcess(), &f64) && f64;
nuclear@0:     }
nuclear@0:     return FALSE;
nuclear@0: #else
nuclear@0:     return FALSE; // Win64 does not support Win16
nuclear@0: #endif
nuclear@0: }
nuclear@0: #endif
nuclear@0: 
nuclear@0: const char * OSAsString()
nuclear@0: {
nuclear@0: #if defined (OVR_OS_IPHONE)
nuclear@0:     return "IPhone";
nuclear@0: #elif defined (OVR_OS_DARWIN)
nuclear@0:     return "Darwin";
nuclear@0: #elif defined (OVR_OS_MAC)
nuclear@0:     return "Mac";
nuclear@0: #elif defined (OVR_OS_BSD)
nuclear@0:     return "BSD";
nuclear@0: #elif defined (OVR_OS_WIN64) || defined (OVR_OS_WIN32)
nuclear@0:     if (Is64BitWindows())
nuclear@0:         return "Win64";
nuclear@0:     else
nuclear@0:         return "Win32";
nuclear@0: #elif defined (OVR_OS_ANDROID)
nuclear@0:     return "Android";
nuclear@0: #elif defined (OVR_OS_LINUX)
nuclear@0:     return "Linux";
nuclear@0: #elif defined (OVR_OS_BSD)
nuclear@0:     return "BSD";
nuclear@0: #else
nuclear@0:     return "Other";
nuclear@0: #endif
nuclear@0: }
nuclear@0: 
nuclear@0: uint64_t GetGuidInt()
nuclear@0: {
nuclear@0:     uint64_t g = Timer::GetTicksNanos();
nuclear@0: 
nuclear@0:     uint64_t lastTime, thisTime;
nuclear@0:     int j;
nuclear@0:     // Sleep a small random time, then use the last 4 bits as a source of randomness
nuclear@0:     for (j = 0; j < 8; j++)
nuclear@0:     {
nuclear@0:         lastTime = Timer::GetTicksNanos();
nuclear@0:         Thread::MSleep(1);
nuclear@0:         Thread::MSleep(0);
nuclear@0:         thisTime = Timer::GetTicksNanos();
nuclear@0:         uint64_t diff = thisTime - lastTime;
nuclear@0:         unsigned int diff4Bits = (unsigned int)(diff & 15);
nuclear@0:         diff4Bits <<= 32 - 4;
nuclear@0:         diff4Bits >>= j * 4;
nuclear@0:         ((char*)&g)[j] ^= diff4Bits;
nuclear@0:     }
nuclear@0: 
nuclear@0:     return g;
nuclear@0: }
nuclear@0: String GetGuidString()
nuclear@0: {
nuclear@0:     uint64_t guid = GetGuidInt();
nuclear@0: 
nuclear@0:     char buff[64];
nuclear@0: #if defined(OVR_CC_MSVC)
nuclear@0:     OVR_sprintf(buff, sizeof(buff), "%I64u", guid);
nuclear@0: #else
nuclear@0:     OVR_sprintf(buff, sizeof(buff), "%llu", (unsigned long long) guid);
nuclear@0: #endif
nuclear@0:     return String(buff);
nuclear@0: }
nuclear@0: 
nuclear@0: const char * GetProcessInfo()
nuclear@0: {
nuclear@0: 	#if defined (OVR_CPU_X86_64	)
nuclear@0:     return "64 bit";
nuclear@0: #elif defined (OVR_CPU_X86)
nuclear@0:     return "32 bit";
nuclear@0: #else
nuclear@0:     return "TODO";
nuclear@0: #endif
nuclear@0: }
nuclear@0: #ifdef OVR_OS_WIN32
nuclear@0: 
nuclear@0: 
nuclear@0: String OSVersionAsString()
nuclear@0: {
nuclear@0:     return GetSystemFileVersionString("\\kernel32.dll");
nuclear@0: }
nuclear@0: String GetSystemFileVersionString(String filePath)
nuclear@0: {
nuclear@0:     char strFilePath[MAX_PATH]; // Local variable
nuclear@0:     UINT sysDirLen = GetSystemDirectoryA(strFilePath, ARRAYSIZE(strFilePath));
nuclear@0:     if (sysDirLen != 0)
nuclear@0:     {
nuclear@0:         OVR_strcat(strFilePath, MAX_PATH, filePath.ToCStr());
nuclear@0:         return GetFileVersionString(strFilePath);
nuclear@0:     }
nuclear@0:     else
nuclear@0:     {
nuclear@0:         return "GetSystemDirectoryA failed";
nuclear@0:     }
nuclear@0: }
nuclear@0: // See http://stackoverflow.com/questions/940707/how-do-i-programatically-get-the-version-of-a-dll-or-exe-file
nuclear@0: String GetFileVersionString(String filePath)
nuclear@0: {
nuclear@0:     String result;
nuclear@0: 
nuclear@0:     DWORD dwSize = GetFileVersionInfoSizeA(filePath.ToCStr(), NULL);
nuclear@0:     if (dwSize == 0)
nuclear@0:     {
nuclear@0:         OVR_DEBUG_LOG(("Error in GetFileVersionInfoSizeA: %d (for %s)", GetLastError(), filePath.ToCStr()));
nuclear@0:         result = filePath + " not found";
nuclear@0:     }
nuclear@0:     else
nuclear@0:     {
nuclear@0:         BYTE* pVersionInfo = new BYTE[dwSize];
nuclear@0:         if (!pVersionInfo)
nuclear@0:         {
nuclear@0:             OVR_DEBUG_LOG(("Out of memory allocating %d bytes (for %s)", dwSize, filePath.ToCStr()));
nuclear@0:             result = "Out of memory";
nuclear@0:         }
nuclear@0:         else
nuclear@0:         {
nuclear@0:             if (!GetFileVersionInfoA(filePath.ToCStr(), 0, dwSize, pVersionInfo))
nuclear@0:             {
nuclear@0:                 OVR_DEBUG_LOG(("Error in GetFileVersionInfo: %d (for %s)", GetLastError(), filePath.ToCStr()));
nuclear@0:                 result = "Cannot get version info";
nuclear@0:             }
nuclear@0:             else
nuclear@0:             {
nuclear@0:                 VS_FIXEDFILEINFO* pFileInfo = NULL;
nuclear@0:                 UINT              pLenFileInfo = 0;
nuclear@0:                 if (!VerQueryValue(pVersionInfo, TEXT("\\"), (LPVOID*)&pFileInfo, &pLenFileInfo))
nuclear@0:                 {
nuclear@0:                     OVR_DEBUG_LOG(("Error in VerQueryValue: %d (for %s)", GetLastError(), filePath.ToCStr()));
nuclear@0:                     result = "File has no version info";
nuclear@0:                 }
nuclear@0:                 else
nuclear@0:                 {
nuclear@0:                     int major = (pFileInfo->dwFileVersionMS >> 16) & 0xffff;
nuclear@0:                     int minor = (pFileInfo->dwFileVersionMS) & 0xffff;
nuclear@0:                     int hotfix = (pFileInfo->dwFileVersionLS >> 16) & 0xffff;
nuclear@0:                     int other = (pFileInfo->dwFileVersionLS) & 0xffff;
nuclear@0: 
nuclear@0:                     char str[128];
nuclear@0:                     OVR::OVR_sprintf(str, 128, "%d.%d.%d.%d", major, minor, hotfix, other);
nuclear@0: 
nuclear@0:                     result = str;
nuclear@0:                 }
nuclear@0:             }
nuclear@0: 
nuclear@0:             delete[] pVersionInfo;
nuclear@0:         }
nuclear@0:     }
nuclear@0: 
nuclear@0:     return result;
nuclear@0: }
nuclear@0: 
nuclear@0: 
nuclear@0: String GetDisplayDriverVersion()
nuclear@0: {
nuclear@0:     return GetSystemFileVersionString("\\OVRDisplay32.dll");
nuclear@0: }
nuclear@0: String GetCameraDriverVersion()
nuclear@0: {
nuclear@0:     return GetSystemFileVersionString("\\drivers\\OCUSBVID.sys");
nuclear@0: }
nuclear@0: 
nuclear@0: // From http://stackoverflow.com/questions/9524309/enumdisplaydevices-function-not-working-for-me
nuclear@0: void GetGraphicsCardList( Array< String > &gpus)
nuclear@0: {
nuclear@0: 	gpus.Clear();
nuclear@0: 
nuclear@0: 	DISPLAY_DEVICEA dd;
nuclear@0: 
nuclear@0: 	dd.cb = sizeof(dd);
nuclear@0: 
nuclear@0: 	DWORD deviceNum = 0;
nuclear@0: 	while( EnumDisplayDevicesA(NULL, deviceNum, &dd, 0) ){
nuclear@0:         if (dd.StateFlags & DISPLAY_DEVICE_PRIMARY_DEVICE)
nuclear@0: 		    gpus.PushBack(dd.DeviceString);
nuclear@0: 		deviceNum++;
nuclear@0: 	}
nuclear@0: }
nuclear@0: #else
nuclear@0: 
nuclear@0: // used for driver files
nuclear@0: 
nuclear@0: String GetFileVersionString(String /*filePath*/)
nuclear@0: {
nuclear@0: 	return String();
nuclear@0: }
nuclear@0: 
nuclear@0: String GetSystemFileVersionString(String /*filePath*/)
nuclear@0: {
nuclear@0: 	return String();
nuclear@0: }
nuclear@0: 
nuclear@0: String GetDisplayDriverVersion()
nuclear@0: {
nuclear@0: 	return String();
nuclear@0: }
nuclear@0: 
nuclear@0: String GetCameraDriverVersion()
nuclear@0: {
nuclear@0: 	return String();
nuclear@0: }
nuclear@0: 
nuclear@0: #ifdef OVR_OS_MAC
nuclear@0:     //use objective c source
nuclear@0: #else
nuclear@0:     
nuclear@0: //todo linux, this requires searching /var/ files
nuclear@0: void GetGraphicsCardList(OVR::Array< OVR::String > &gpus)
nuclear@0: {
nuclear@0: 	gpus.Clear();
nuclear@0: }
nuclear@0: String OSVersionAsString()
nuclear@0: {
nuclear@0:     return String();
nuclear@0: }
nuclear@0: #endif //OVR_OS_MAC
nuclear@0: #endif // WIN32
nuclear@0: 
nuclear@0: } } // namespace OVR { namespace Util {