diff options
Diffstat (limited to 'platform/windows/os_windows.cpp')
| -rw-r--r-- | platform/windows/os_windows.cpp | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/platform/windows/os_windows.cpp b/platform/windows/os_windows.cpp index 8477746001..203e078cb4 100644 --- a/platform/windows/os_windows.cpp +++ b/platform/windows/os_windows.cpp @@ -184,12 +184,8 @@ void OS_Windows::initialize() { NetSocketPosix::make_default(); // We need to know how often the clock is updated - if (!QueryPerformanceFrequency((LARGE_INTEGER *)&ticks_per_second)) - ticks_per_second = 1000; - // If timeAtGameStart is 0 then we get the time since - // the start of the computer when we call GetGameTime() - ticks_start = 0; - ticks_start = get_ticks_usec(); + QueryPerformanceFrequency((LARGE_INTEGER *)&ticks_per_second); + QueryPerformanceCounter((LARGE_INTEGER *)&ticks_start); // set minimum resolution for periodic timers, otherwise Sleep(n) may wait at least as // long as the windows scheduler resolution (~16-30ms) even for calls like Sleep(1) @@ -369,8 +365,10 @@ uint64_t OS_Windows::get_ticks_usec() const { uint64_t ticks; // This is the number of clock ticks since start - if (!QueryPerformanceCounter((LARGE_INTEGER *)&ticks)) - ticks = (UINT64)timeGetTime(); + QueryPerformanceCounter((LARGE_INTEGER *)&ticks); + // Subtract the ticks at game start to get + // the ticks since the game started + ticks -= ticks_start; // Divide by frequency to get the time in seconds // original calculation shown below is subject to overflow @@ -390,9 +388,6 @@ uint64_t OS_Windows::get_ticks_usec() const { // seconds time += seconds * 1000000L; - // Subtract the time at game start to get - // the time since the game started - time -= ticks_start; return time; } |