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qelapsedtimer for WinRT

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Change-Id: Ic31fa667bdc746776d8e29564ea8a1ba6e7384f3
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This commit is contained in:
Oliver Wolff 2013-09-05 10:22:01 +02:00 committed by The Qt Project
parent 1985f818e7
commit cfc7cc39f9
1 changed files with 7 additions and 1 deletions
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8
src/corelib/tools/qelapsedtimer_win.cpp
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@ -43,7 +43,11 @@
#include <qt_windows.h> #include <qt_windows.h>
typedef ULONGLONG (WINAPI *PtrGetTickCount64)(void); typedef ULONGLONG (WINAPI *PtrGetTickCount64)(void);
static PtrGetTickCount64 ptrGetTickCount64 = 0; #if defined(Q_OS_WINRT)
static const PtrGetTickCount64 ptrGetTickCount64 = &GetTickCount64;
#else
static PtrGetTickCount64 ptrGetTickCount64 = 0;
#endif
QT_BEGIN_NAMESPACE QT_BEGIN_NAMESPACE
@ -56,6 +60,7 @@ static void resolveLibs()
if (done) if (done)
return; return;
#ifndef Q_OS_WINRT
// try to get GetTickCount64 from the system // try to get GetTickCount64 from the system
HMODULE kernel32 = GetModuleHandleW(L"kernel32"); HMODULE kernel32 = GetModuleHandleW(L"kernel32");
if (!kernel32) if (!kernel32)
@ -67,6 +72,7 @@ static void resolveLibs()
#else #else
ptrGetTickCount64 = (PtrGetTickCount64)GetProcAddress(kernel32, "GetTickCount64"); ptrGetTickCount64 = (PtrGetTickCount64)GetProcAddress(kernel32, "GetTickCount64");
#endif #endif
#endif // !Q_OS_WINRT
// Retrieve the number of high-resolution performance counter ticks per second // Retrieve the number of high-resolution performance counter ticks per second
LARGE_INTEGER frequency; LARGE_INTEGER frequency;