clobber
76 lines
2.9 KiB
C++
Executable File
76 lines
2.9 KiB
C++
Executable File
// ----------------------------------------------------------------------------
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// ___ ___ ___ ___ ___ ____ ___ _ _
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// /__/ /__/ / / /__ /__/ /__ / /_ / |/ /
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// / / \ /__/ ___/ ___/ ___/ / /__ / / emulator
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//
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// ----------------------------------------------------------------------------
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// Copyright 2005 Greg Stanton
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// 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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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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// ----------------------------------------------------------------------------
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// Timer.cpp
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// ----------------------------------------------------------------------------
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#include "Timer.h"
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typedef unsigned long long uInt64;
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static uInt64 timer_currentTime;
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static uInt64 timer_nextTime;
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static uInt64 timer_counterFrequency;
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static uint timer_frameTime;
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static bool timer_usingCounter = false;
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# if 0
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// ----------------------------------------------------------------------------
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// Initialize
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// ----------------------------------------------------------------------------
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void timer_Initialize( ) {
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timer_usingCounter = (QueryPerformanceFrequency((LARGE_INTEGER*)&timer_counterFrequency))? true: false;
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timeBeginPeriod(1);
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}
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// ----------------------------------------------------------------------------
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// Reset
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// ----------------------------------------------------------------------------
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void timer_Reset( ) {
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if(timer_usingCounter) {
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QueryPerformanceCounter((LARGE_INTEGER*)&timer_nextTime);
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timer_frameTime = timer_counterFrequency / prosystem_frequency;
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timer_nextTime += timer_frameTime;
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}
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else {
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timer_frameTime = (1000.0 / (double)prosystem_frequency) * 1000;
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timer_currentTime = timeGetTime( ) * 1000;
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timer_nextTime = timer_currentTime + timer_frameTime;
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}
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}
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// ----------------------------------------------------------------------------
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// IsTime
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// ----------------------------------------------------------------------------
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bool timer_IsTime( ) {
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if(timer_usingCounter) {
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QueryPerformanceCounter((LARGE_INTEGER*)&timer_currentTime);
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}
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else {
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timer_currentTime = timeGetTime( ) * 1000;
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}
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if(timer_currentTime >= timer_nextTime) {
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timer_nextTime += timer_frameTime;
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return true;
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}
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return false;
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}
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# endif |