1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/graphics/windowing/windowserver/stdgraphic/TESTGRAPHICDRAWER.CPP	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,109 @@
     1.4 +// Copyright (c) 1995-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +//
    1.18 +
    1.19 +#include "wsgraphicdrawercontext.h"
    1.20 +#include "stdgraphictestdrawer.h"
    1.21 +
    1.22 +CWsGraphicDrawerTestFrameRate* CWsGraphicDrawerTestFrameRate::CreateL()
    1.23 +	{
    1.24 +	return new(ELeave) CWsGraphicDrawerTestFrameRate;
    1.25 +	}
    1.26 +
    1.27 +CWsGraphicDrawerTestFrameRate::CWsGraphicDrawerTestFrameRate()
    1.28 +	{
    1.29 +	}
    1.30 +
    1.31 +CWsGraphicDrawerTestFrameRate::~CWsGraphicDrawerTestFrameRate()
    1.32 +	{
    1.33 +	if (iContext)
    1.34 +		{
    1.35 +		iContext->Destroy();
    1.36 +		iContext = NULL;
    1.37 +		}
    1.38 +	}
    1.39 +
    1.40 +void CWsGraphicDrawerTestFrameRate::ConstructL(MWsGraphicDrawerEnvironment& aEnv,const TGraphicDrawerId& aId,MWsClient& aOwner,const TDesC8& /*aData*/)
    1.41 +	{
    1.42 +	BaseConstructL(aEnv,aId,aOwner);
    1.43 +	if (!(aEnv.Screen(0)->ResolveObjectInterface(KMWsCompositionContext) || aEnv.Screen(0)->ResolveObjectInterface(KMWsScene)))
    1.44 +		{
    1.45 +		iContext = CWsGraphicDrawerNonNgaContext::NewL();
    1.46 +		}
    1.47 +	else
    1.48 +		{
    1.49 +		iContext = CWsGraphicDrawerNgaContext::NewL();
    1.50 +		}
    1.51 +	}
    1.52 +
    1.53 +void CWsGraphicDrawerTestFrameRate::DoDraw(MWsGc& aGc,const TRect& aRect,const TDesC8& /*aData*/) const
    1.54 +	{
    1.55 +	if (KErrNone != iContext->Push(aGc))
    1.56 +		{
    1.57 +		return;
    1.58 +		}
    1.59 +	//Simplification: treats all screens the same
    1.60 +	iContext->DrawFrameRate(aGc, aRect, iFps);
    1.61 +	//Count this draw		
    1.62 +	iFps.Sample();
    1.63 +	//Schedule a redraw
    1.64 +	iContext->ScheduleAnimation(aGc,aRect,0); // as fast as possible
    1.65 +	iContext->Pop(aGc);
    1.66 +	}
    1.67 +
    1.68 +void CWsGraphicDrawerTestFrameRate::HandleMessage(const TDesC8& /*aData*/)
    1.69 +	{
    1.70 +	}
    1.71 +	
    1.72 +TInt CFrameRate::Fps() const
    1.73 +	{
    1.74 +	if(iNumSamples > 1)
    1.75 +		{
    1.76 +		const TUint count = Min(iNumSamples,KMaxSamples);		
    1.77 +		TInt64 earliest = iSamples[0];
    1.78 +		TInt64 latest = earliest;
    1.79 +		for(TInt i=1; i<count; i++)
    1.80 +			{
    1.81 +			const TInt64 sample = iSamples[i];
    1.82 +			earliest = Min(earliest,sample);
    1.83 +			latest = Max(latest,sample);
    1.84 +			}
    1.85 +		const TInt64 duration = latest - earliest;
    1.86 +		const TInt microspf = (duration / count);
    1.87 +		if(microspf)
    1.88 +			{
    1.89 +			const TInt millispf = (microspf / 1000);
    1.90 +			if(millispf)
    1.91 +				{
    1.92 +				const TInt fps = (1000 / millispf);
    1.93 +				return fps;
    1.94 +				}
    1.95 +			}
    1.96 +		}
    1.97 +	return 0;
    1.98 +	}
    1.99 +	
   1.100 +TInt CFrameRate::CountSamples() const
   1.101 +	{
   1.102 +	return iNumSamples;
   1.103 +	}
   1.104 +
   1.105 +void CFrameRate::Sample() const
   1.106 +	{
   1.107 +	//Add the current tick to the stats for next time
   1.108 +	TTime now;
   1.109 +	now.UniversalTime();
   1.110 +	iSamples[iNumSamples % KMaxSamples] = now.Int64();
   1.111 +	iNumSamples++;
   1.112 +	}