// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

//

/**

 @file

 @test

 @internalComponent - Internal Symbian test code

*/

#ifndef __EGLTEST_PARAMETERS_H__

#define __EGLTEST_PARAMETERS_H__

#include <e32base.h>

#include <EGL/egl.h>

#include <EGL/eglext.h>

//This table defines the candidate constants that could be used as bad

//parameters. They are candidate becuase they will be evaluated at runtime and

//if any conflict with known good params, they will be excluded. When creating

//the dynamic list, non static params are added such as [validParam] + 1.

const TInt KCandidateBadParams[] =

    {

    0,

    4,

    5,

    0xBADFEE0,

    0xBADFEED

    };

const TInt KNumCandidateBadParams = sizeof(KCandidateBadParams)/sizeof(KCandidateBadParams[0]);

template <typename T>

class CParameters : public CBase

    {

public:

    static CParameters* NewLC(TBool aCreateBadParams, const RArray<T>& aValidParamsArray, TInt aIndex);

    static CParameters* NewLC(TBool aCreateBadParams, const T* aValidParamsArray, TInt aCount, TInt aIndex);

    static CParameters* NewLC(TBool aCreateBadParams, T aValidParam);

    ~CParameters();

    TInt Count() const;

    T& operator[](TInt aIndex);

    const T& operator[](TInt aIndex) const;

private:

    CParameters();

    void ConstructL(TBool aCreateBadParams, const RArray<T>& aValidParamsArray, TInt aIndex);

    void ConstructL(TBool aCreateBadParams, const T* aValidParamsArray, TInt aCount, TInt aIndex);

    void ConstructL(TBool aCreateBadParams, T aValidParam);

    void MakeBadParamsL(const RArray<T>& aValidParamsArray);

    void MakeGoodParamsL(const RArray<T>& aValidParamsArray, TInt aIndex);

    TBool IsErrorValue(const T aValue) const;

private:

    RArray<T> iParams;

    };

typedef CParameters<EGLDisplay> CDisplayParams;

typedef CParameters<EGLEndpointNOK> CEndpointParams;

typedef CParameters<EGLImageKHR> CImageParams;

typedef CParameters<EGLenum> CEnumParams;

typedef CParameters<EGLint> CIntParams;

typedef CParameters<TSurfaceId> CSurfaceIdParams;

typedef CParameters<TRequestStatus *> CSyncParams;

template <typename T>

CParameters<T>* CParameters<T>::NewLC(TBool aCreateBadParams, const RArray<T>& aValidParamsArray, TInt aIndex)

    {

    CParameters<T>* obj = new (ELeave) CParameters();

    CleanupStack::PushL(obj);

    obj->ConstructL(aCreateBadParams, aValidParamsArray);

    return obj;

    }

template <typename T>

CParameters<T>* CParameters<T>::NewLC(TBool aCreateBadParams, const T* aValidParamsArray, TInt aCount, TInt aIndex)

    {

    CParameters<T>* obj = new (ELeave) CParameters();

    CleanupStack::PushL(obj);

    obj->ConstructL(aCreateBadParams, aValidParamsArray, aCount, aIndex);

    return obj;

    }

template <typename T>

CParameters<T>* CParameters<T>::NewLC(TBool aCreateBadParams, T aValidParam)

    {

    CParameters<T>* obj = new (ELeave) CParameters();

    CleanupStack::PushL(obj);

    obj->ConstructL(aCreateBadParams, aValidParam);

    return obj;

    }

template <typename T>

CParameters<T>::CParameters()

    {

    }

template <typename T>

void CParameters<T>::ConstructL(TBool aCreateBadParams, const RArray<T>& aValidParamsArray, TInt aIndex)

    {

    if(aCreateBadParams)

        {

        MakeBadParamsL(aValidParamsArray);

        }

    else

        {

        MakeGoodParamsL(aValidParamsArray, aIndex);

        }

    }

template <typename T>

void CParameters<T>::ConstructL(TBool aCreateBadParams, const T* aValidParamsArray, TInt aCount, TInt aIndex)

    {

    RArray<T> validParamsArray;

    CleanupClosePushL(validParamsArray);

    for(TInt i=0; i < aCount; i++)

        {

        validParamsArray.AppendL(aValidParamsArray[i]);

        }

    ConstructL(aCreateBadParams, validParamsArray, aIndex);

    CleanupStack::PopAndDestroy(1);

    }

template <typename T>

void CParameters<T>::ConstructL(TBool aCreateBadParams, T aValidParam)

    {

    ConstructL(aCreateBadParams, &aValidParam, 1, 0);

    }

template <typename T>

void CParameters<T>::MakeGoodParamsL(const RArray<T>& aValidParamsArray, TInt aIndex)

    {

    ASSERT(iParams.Count() == 0);

    iParams.AppendL(aValidParamsArray[aIndex]);

    }

template <typename T>

void CParameters<T>::MakeBadParamsL(const RArray<T>& aValidParamsArray)

    {

    RArray<T> candidateParams;

    CleanupClosePushL(candidateParams);

    //Pack the static bad params into an candidateParams.

    for(TInt i=0; i < KNumCandidateBadParams; i++)

        {

        candidateParams.AppendL((T)KCandidateBadParams[i]);

        }

    //Pack the dynamic bad params (ie validParam+1 for each valid param).

    for(TInt i=0; i < aValidParamsArray.Count(); i++)

        {

        candidateParams.AppendL((T)((TInt)aValidParamsArray[i] + 1));

        }

    //Iterate over candidateParams and add them to the final

    //bad params array if they don't clash with any valid params.

    for(TInt i=0; i < candidateParams.Count(); i++)

        {

        TBool useCurParam = ETrue;

        for(TInt n=0; n < aValidParamsArray.Count(); n++)

            {

            if(!IsErrorValue(aValidParamsArray[n]) && candidateParams[i] == aValidParamsArray[n])

                {

                useCurParam = EFalse;

                break;

                }

            }

        // Can/should we use "search" here?

        // Check if it's already in the list - no point in testing the same value more than once.

        for(TInt j = 0; useCurParam && j < iParams.Count(); j++)

            {

            if (candidateParams[i] == iParams[j])

                {

                useCurParam = EFalse;

                }

            }

        if(useCurParam)

            {

            iParams.AppendL(candidateParams[i]);

            }

        }

    //Final bad params are in iParams. Delete candidateParams.

    CleanupStack::PopAndDestroy(1);

    }

template <typename T>

TBool CParameters<T>::IsErrorValue(const T aValue) const

    {

    return aValue == 0;   // Default value, eg. EGL_NO_DISPLAY

    }

template <>

TBool CParameters<TSurfaceId>::IsErrorValue(const TSurfaceId aValue) const

    {

    return aValue.IsNull();

    }

template <typename T>

CParameters<T>::~CParameters()

    {

    iParams.Close();

    }

template <typename T>

TInt CParameters<T>::Count() const

    {

    return iParams.Count();

    }

template <typename T>

T& CParameters<T>::operator[](TInt aIndex)

    {

    return iParams[aIndex];

    }

template <typename T>

const T& CParameters<T>::operator[](TInt aIndex) const

    {

    return iParams[aIndex];

    }

template<>

void CParameters<TSurfaceId>::MakeBadParamsL(const RArray<TSurfaceId>& aValidParamsArray)

    {

    RArray<TSurfaceId> candidateParams;

    CleanupClosePushL(candidateParams);

    static const TSurfaceId KCandidateSurfaceBadParams[]=

    {

            { 0 },

            { 12346, 18129, 192121, 98198 },

            { 11111, 22222, 222222, 33333 },

            { -1, -1, -1, -1 },

            { 0x80000000, 0x80000000, 0x80000000, 0x80000000 },

            { 0x7FFFFFFF, 0x7FFFFFFF, 0x7FFFFFFF, 0x7FFFFFFF },

    };

    //Pack the static bad params into an candidateParams.

    for(TInt i=0; i < KNumCandidateBadParams; i++)

        {

        candidateParams.AppendL(KCandidateSurfaceBadParams[i]);

        }

    //Pack the dynamic bad params (ie validParam+1 for each valid param).

    for(TInt i=0; i < aValidParamsArray.Count(); i++)

        {

        TSurfaceId id = aValidParamsArray[i];

        id.iInternal[3]++;

        candidateParams.AppendL(id);

        }

    RSurfaceManager surfManager;

    User::LeaveIfError(surfManager.Open());

    CleanupClosePushL(surfManager);

    //Iterate over candidateParams and add them to the final

    //bad params array if they don't clash with any valid params.

    for(TInt i=0; i < candidateParams.Count(); i++)

        {

        TBool useCurParam = ETrue;

        for(TInt n=0; n < aValidParamsArray.Count(); n++)

            {

            TInt err = surfManager.OpenSurface(candidateParams[i]);

            if(err == KErrNone && !IsErrorValue(aValidParamsArray[n]) && candidateParams[i] == aValidParamsArray[n])

                {

                // It is unlikely we get here for ANY reason, but we always close the surface -

                // it may not have successfully opened, but it's fine to do even if we didn't successfully open

                // the surface. Just ignore any error.

                surfManager.CloseSurface(candidateParams[i]);

                useCurParam = EFalse;

                break;

                }

            }

        if(useCurParam)

            {

            iParams.AppendL(candidateParams[i]);

            }

        }

    //Final bad params are in iParams. Delete candidateParams, and close surfManager.

    CleanupStack::PopAndDestroy(2);

    }

template<>

void CParameters<TRequestStatus *>::MakeBadParamsL(const RArray<TRequestStatus *>& /* aValidParamsArray */)

    {

    // Currently, the only TRequestStatus that we can test for is NULL.

    // Since TRequestStatus can be any valid memory, it is impossible to

    // test for "bad" values by any simple measure - the app will panic

    // if random address is passed along, but there is no easy way to determine

    // if it's a valid or invalid address.

    iParams.AppendL(0);

    }

#endif