Timer.cpp

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/*
===========================================================================

Doom 3 GPL Source Code
Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company. 

This file is part of the Doom 3 GPL Source Code (?Doom 3 Source Code?).  

Doom 3 Source Code is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

Doom 3 Source Code is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with Doom 3 Source Code.  If not, see <http://www.gnu.org/licenses/>.

In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code.  If not, please request a copy in writing from id Software at the address below.

If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.

===========================================================================
*/

#include "precompiled.h"
#pragma hdrstop

double idTimer::base = -1.0;


/*
=================
idTimer::InitBaseClockTicks
=================
*/
void idTimer::InitBaseClockTicks( void ) const {
        idTimer timer;
        double ct, b;
        int i;

        base = 0.0;
        b = -1.0;
        for ( i = 0; i < 1000; i++ ) {
                timer.Clear();
                timer.Start();
                timer.Stop();
                ct = timer.ClockTicks();
                if ( b < 0.0 || ct < b ) {
                        b = ct;
                }
        }
        base = b;
}


/*
=================
idTimerReport::idTimerReport
=================
*/
idTimerReport::idTimerReport() {
}

/*
=================
idTimerReport::SetReportName
=================
*/
void idTimerReport::SetReportName( const char *name ) {
        reportName = ( name ) ? name : "Timer Report";
}

/*
=================
idTimerReport::~idTimerReport
=================
*/
idTimerReport::~idTimerReport() {
        Clear();
}

/*
=================
idTimerReport::AddReport
=================
*/
int idTimerReport::AddReport( const char *name ) {
        if ( name && *name ) {
                names.Append( name );
                return timers.Append( new idTimer() );
        }
        return -1;
}

/*
=================
idTimerReport::Clear
=================
*/
void idTimerReport::Clear() {
        timers.DeleteContents( true );
        names.Clear();
        reportName.Clear();
}

/*
=================
idTimerReport::Reset
=================
*/
void idTimerReport::Reset() {
        assert ( timers.Num() == names.Num() );
        for ( int i = 0; i < timers.Num(); i++ ) {
                timers[i]->Clear();
        }
}

/*
=================
idTimerReport::AddTime
=================
*/
void idTimerReport::AddTime( const char *name, idTimer *time ) {
        assert ( timers.Num() == names.Num() );
        int i;
        for ( i = 0; i < names.Num(); i++ ) {
                if ( names[i].Icmp( name ) == 0 ) {
                        *timers[i] += *time;
                        break;
                }
        }
        if ( i == names.Num() ) {
                int index = AddReport( name );
                if ( index >= 0 ) {
                        timers[index]->Clear();
                        *timers[index] += *time;
                }
        }
}

/*
=================
idTimerReport::PrintReport
=================
*/
void idTimerReport::PrintReport() {
        assert( timers.Num() == names.Num() );
        idLib::common->Printf( "Timing Report for %s\n", reportName.c_str() );
        idLib::common->Printf( "-------------------------------\n" );
        float total = 0.0f;
        for ( int i = 0; i < names.Num(); i++ ) {
                idLib::common->Printf( "%s consumed %5.2f seconds\n", names[i].c_str(), timers[i]->Milliseconds() * 0.001f );
                total += timers[i]->Milliseconds();
        }
        idLib::common->Printf( "Total time for report %s was %5.2f\n\n", reportName.c_str(), total * 0.001f );
}