/// Berserker: CPU utilization gage
FILETIME    userTime_prev;
int         totalTime_prev;
void GLimp_GetCpuUtilization(unsigned *cpuUtil)
{
    int         util;
    HANDLE      hProcess = GetCurrentProcess();
    FILETIME    ft[4];
    SYSTEMTIME  sdU;
    FILETIME    dU, userTime;
    int         dT, totalTime;
    long long   usT, usT_prev, usT_delta, time, time2, time3;
    float       deltaTime;

    if (!GetProcessTimes(hProcess, &ft[0], &ft[1], &ft[2], &ft[3]))
    {
        *cpuUtil = INT_MAX;
        return;
    }
    totalTime = Sys_Milliseconds();

    time2 = ((long long)ft[2].dwHighDateTime << 32) + ft[2].dwLowDateTime;  // kernel time
    time3 = ((long long)ft[3].dwHighDateTime << 32) + ft[3].dwLowDateTime;  // user time
    time = time2 + time3;
    userTime.dwHighDateTime = time >> 32;
    userTime.dwLowDateTime = time & 0xFFFFFFFF;

    usT = time;
    usT_prev = ((long long)userTime_prev.dwHighDateTime << 32) + userTime_prev.dwLowDateTime;
    usT_delta = usT - usT_prev;
    dU.dwHighDateTime = usT_delta >> 32;
    dU.dwLowDateTime = usT_delta & 0xFFFFFFFF;

    FileTimeToSystemTime(&dU, &sdU);

    dT = totalTime - totalTime_prev;
    deltaTime = sdU.wMilliseconds + sdU.wSecond * 1000.0 + sdU.wMinute * 60000.0 + sdU.wHour * 3600000.0 + (sdU.wDay - 1) * 86400000.0; /// дальше не будем раскручивать ;)
    util = (int)(100.0 * deltaTime / (float)dT);

    if (util < 0)   util = 0;
    else if (util > 100)    util = 100;

    userTime_prev = userTime;
    totalTime_prev = totalTime;

    *cpuUtil = util;
}

void GLimp_InitCPU(void)
{
    HANDLE      hProcess;
    FILETIME    ft[4];
    long long   time2, time3, time;

    hProcess = GetCurrentProcess();
    GetProcessTimes(hProcess, &ft[0], &ft[1], &ft[2], &ft[3]);
    totalTime_prev = Sys_Milliseconds();

    time2 = ((long long)ft[2].dwHighDateTime << 32) + ft[2].dwLowDateTime;  // kernel time
    time3 = ((long long)ft[3].dwHighDateTime << 32) + ft[3].dwLowDateTime;  // user time
    time = time2 + time3;
    userTime_prev.dwHighDateTime = time >> 32;
    userTime_prev.dwLowDateTime = time & 0xFFFFFFFF;
}