mirror of
https://bitbucket.org/CPMADevs/cnq3
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128 lines
2.8 KiB
C++
128 lines
2.8 KiB
C++
/*
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===========================================================================
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Copyright (C) 1999-2005 Id Software, Inc.
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This file is part of Quake III Arena source code.
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Quake III Arena source code is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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Quake III Arena source code is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Quake III Arena source code; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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===========================================================================
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*/
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#include "../qcommon/q_shared.h"
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#include "../qcommon/qcommon.h"
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#include "win_local.h"
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int Sys_Milliseconds()
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{
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static int sys_timeBase = 0;
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if (!sys_timeBase)
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sys_timeBase = timeGetTime();
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return (timeGetTime() - sys_timeBase);
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}
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void Sys_Sleep( int ms )
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{
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if (ms >= 1)
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Sleep(ms);
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}
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void Sys_MicroSleep( int us )
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{
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if (us <= 0)
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return;
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LARGE_INTEGER frequency;
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LARGE_INTEGER endTime;
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QueryPerformanceCounter(&endTime);
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QueryPerformanceFrequency(&frequency);
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endTime.QuadPart += ((LONGLONG)us * frequency.QuadPart) / 1000000LL;
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LARGE_INTEGER currentTime;
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do {
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SwitchToThread();
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QueryPerformanceCounter(¤tTime);
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} while (currentTime.QuadPart < endTime.QuadPart);
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}
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int64_t Sys_Microseconds()
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{
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static qbool initialized = qfalse;
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static LARGE_INTEGER start;
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static LARGE_INTEGER freq;
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if (!initialized) {
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initialized = qtrue;
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QueryPerformanceFrequency(&freq);
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QueryPerformanceCounter(&start);
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}
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LARGE_INTEGER now;
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QueryPerformanceCounter(&now);
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return ((now.QuadPart - start.QuadPart) * 1000000LL) / freq.QuadPart;
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}
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const char* Sys_DefaultHomePath()
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{
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return NULL;
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}
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qbool Sys_HardReboot()
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{
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return qfalse;
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}
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qbool Sys_HasCNQ3Parent()
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{
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return qfalse;
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}
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int Sys_GetUptimeSeconds( qbool parent )
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{
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if (parent)
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return -1;
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FILETIME startFileTime;
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FILETIME trash[3];
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if (GetProcessTimes(GetCurrentProcess(), &startFileTime, &trash[0], &trash[1], &trash[2]) == 0)
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return -1;
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SYSTEMTIME endSystemTime;
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GetSystemTime(&endSystemTime);
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FILETIME endFileTime;
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if (SystemTimeToFileTime(&endSystemTime, &endFileTime) == 0)
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return -1;
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// 1 FILETIME unit is 100-nanoseconds
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ULARGE_INTEGER start, end;
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start.LowPart = startFileTime.dwLowDateTime;
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start.HighPart = startFileTime.dwHighDateTime;
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end.LowPart = endFileTime.dwLowDateTime;
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end.HighPart = endFileTime.dwHighDateTime;
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const int seconds = (int)((end.QuadPart - start.QuadPart) / 1e7);
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return seconds;
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}
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