/*

* Copyright (c) 2008-2009 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:    

*

*/

#include <graphics/surface.h>

#include <graphics/surfacemanager.h>

#include <graphics/surfaceupdateclient.h>

#include <e32math.h>

#include <apgcli.h>

#include <imageconversion.h> 

#include <fbs.h>

#include <glxtracer.h>

#include <glxlog.h>

#include "glxactivecallback.h"

#include "glxhdmisurfaceupdater.h"

#include "glxactivedecoder.h"

#include <bitdev.h> 

const TInt KMulFactorToCreateBitmap = 4;

const TInt KZoomDelay = 10000;

//100 , is decide for 20 steps of zooming , with each step being 5 pixels.

const TInt KMaxZoomLimit = 100;

//evey time we zoom , there is a increase in the ht amd width by 10 pixels.

const TInt KSingleStepForZoom = 10;

_LIT(KMimeJpeg,"image/jpeg");

_LIT(KMimeJpg,"image/jpg");

// -----------------------------------------------------------------------------

// NewLC

// -----------------------------------------------------------------------------

CGlxHdmiSurfaceUpdater* CGlxHdmiSurfaceUpdater::NewL(RWindow* aWindow, const TDesC& aImageFile, 

                                                      CFbsBitmap* aFsBitmap, 

                                                      MGlxGenCallback* aCallBack)

    {

    TRACER("CGlxHdmiSurfaceUpdater* CGlxHdmiSurfaceUpdater::NewL()");

    CGlxHdmiSurfaceUpdater* self = new (ELeave) CGlxHdmiSurfaceUpdater(aWindow, aCallBack);

    CleanupStack::PushL(self);

    self->ConstructL(aFsBitmap,aImageFile);

    CleanupStack::Pop(self);

    return self;

    }

// -----------------------------------------------------------------------------

// destructor 

// -----------------------------------------------------------------------------

CGlxHdmiSurfaceUpdater::~CGlxHdmiSurfaceUpdater()

    {

    TRACER("CGlxHdmiSurfaceUpdater::~CGlxHdmiSurfaceUpdater()");

    ReleaseContent();

    if(iWindow)

        {

        iWindow->RemoveBackgroundSurface(ETrue);

        }

	if(iTimer && iTimer->IsActive())	 	 	 // Check for a CPeriodic Instance

        {

        iTimer->Cancel();

        }

    delete iTimer;   

    if (iGlxDecoderAO)

        {

        delete iGlxDecoderAO;

        }        

    iGlxDecoderAO = NULL;

    iFsSession.Close();

    if (iSurfManager)

        {

        GLX_LOG_INFO("CGlxHdmiSurfaceUpdater::~CGlxHdmiSurfaceUpdater() - Close"); 

        if(iSurfSessionConnected)

            {

            iSurfUpdateSession.Close();

            }

        if (iSurfChunk)

            {

            iSurfChunk->Close();

            }            

        delete iSurfChunk;

        iSurfChunk = NULL;        

        GLX_LOG_INFO("CGlxHdmiSurfaceUpdater::~CGlxHdmiSurfaceUpdater(). iSurfManager->CloseSurface()"); 

        iSurfManager->CloseSurface(iSurfId);

        GLX_LOG_INFO("CGlxHdmiSurfaceUpdater::~CGlxHdmiSurfaceUpdater(). iSurfManager->Close()"); 

        iSurfManager->Close();

        delete iSurfManager;

        iSurfManager = NULL;       

        }

    }

// -----------------------------------------------------------------------------

// ReleaseContent 

// -----------------------------------------------------------------------------

void CGlxHdmiSurfaceUpdater::ReleaseContent()

    {

    TRACER("void CGlxHdmiSurfaceUpdater::ReleaseContent()"); 

    if ( iGlxDecoderAO )

        {

        GLX_LOG_INFO("CGlxHdmiSurfaceUpdater::ReleaseContent() -1");

        iGlxDecoderAO->Cancel();

        }

    if (iFsBitmap)

        {

        GLX_LOG_INFO("CGlxHdmiSurfaceUpdater::ReleaseContent() -2");

        delete iFsBitmap;

        iFsBitmap = NULL;

        }

    for (TInt i=0; i<=2 ; i++)

        {

        GLX_LOG_INFO1("CGlxHdmiSurfaceUpdater::ReleaseContent() -3, %d", i);

        delete iDecodedBitmap[i];

        iDecodedBitmap[i]= NULL;

        }

    GLX_LOG_INFO("CGlxHdmiSurfaceUpdater::ReleaseContent() -4");

    if(iSurfBufferAO && iSurfBufferAO->IsActive())

        {

        GLX_LOG_INFO("CGlxHdmiSurfaceUpdater::ReleaseContent() -5");

		iSurfBufferAO->Cancel();

        }

    if ( iImageDecoder )

        {

        GLX_LOG_INFO("CGlxHdmiSurfaceUpdater::ReleaseContent() -6");

        delete iImageDecoder;

        iImageDecoder = NULL;    

        }

    if (iSurfSessionConnected &&  iSurfManager)

        {

        GLX_LOG_INFO("CGlxHdmiSurfaceUpdater::ReleaseContent() -7");

        iSurfUpdateSession.CancelAllUpdateNotifications();

        }

    if (iImagePath)

        {

        delete iImagePath;

        iImagePath = NULL;

        }

    }

// -----------------------------------------------------------------------------

// CTor 

// -----------------------------------------------------------------------------

CGlxHdmiSurfaceUpdater::CGlxHdmiSurfaceUpdater(RWindow* aWindow,

                          MGlxGenCallback* aCallBack): 

                          iWindow(aWindow), iCallBack(aCallBack), 

                          iShwFsThumbnail(ETrue), iIsNonJpeg(EFalse)

    {

    TRACER("CGlxHdmiSurfaceUpdater::CGlxHdmiSurfaceUpdater()");

    // Implement nothing here

    }

// -----------------------------------------------------------------------------

// ConstructL 

// -----------------------------------------------------------------------------

void CGlxHdmiSurfaceUpdater::ConstructL(CFbsBitmap* aFsBitmap, const TDesC& aImageFile)

    {

    TRACER("CGlxHdmiSurfaceUpdater::ConstructL()");

    // Initiate the HDMI by assigning the necessary values

    InitiateHdmiL(aFsBitmap,aImageFile);

    TInt error = iFsSession.Connect ();

    GLX_LOG_INFO1("CGlxHdmiSurfaceUpdater::ConstructL() FsSession Connect error = %d", error);

    User::LeaveIfError(error);

    iShiftToCloning = EFalse;

    // Create the active object

    iGlxDecoderAO = CGlxHdmiDecoderAO::NewL(this);

    // Create the HDMI Decoder

    CreateImageDecoderL();

    // Create the Bitmap

    CreateBitmapL();

    // Create the surface and AO for updating the surface

    TRAP_IGNORE(CreateHdmiL());

    if(iSurfManager)

        {

        error = iSurfUpdateSession.Connect();

        GLX_LOG_INFO1("CGlxHdmiSurfaceUpdater::ConstructL() Surface update Session Connect error = %d", error);

        User::LeaveIfError(error);

        iSurfSessionConnected = ETrue;

        ShowFsThumbnailL();

#ifdef _DEBUG

        iStartTime.HomeTime();

#endif

        //start decoding the image    

        iGlxDecoderAO->ConvertImageL(*iDecodedBitmap[EJpgDecodedBitmapIndex],iImageDecoder);   

        }

    iTimer = CPeriodic::NewL( CActive::EPriorityStandard );

    }

// -----------------------------------------------------------------------------

// UpdateNewImageL 

// -----------------------------------------------------------------------------

void CGlxHdmiSurfaceUpdater::UpdateNewImageL(const TDesC& aImageFile,CFbsBitmap* aFsBitmap)

    {

    TRACER("CGlxHdmiSurfaceUpdater::UpdateNewImageL()");

    ReleaseContent();   

    // Initiate the HDMI by assigning the necessary values

    InitiateHdmiL(aFsBitmap,aImageFile);

    //Cancel the zoom timers if any

    if(iTimer->IsActive())

        {

        GLX_LOG_INFO("CGlxHdmiSurfaceUpdater::UpdateNewImageL() - Cancel Timer");

        iTimer->Cancel();

        }

    // Create the HDMI Decoder

    CreateImageDecoderL();

    // Create the Bitmap

    CreateBitmapL();

    if(iSurfManager)

        {

        // Create the surface and AO for updating the surface

        CreateHdmiL(EFalse);

        }

    else

        {

        TRAP_IGNORE(CreateHdmiL(ETrue));

        }

#ifdef _DEBUG

    iStartTime.HomeTime();

#endif

    if(iSurfManager)

        {

        // Show FS Thumbnail

        ShowFsThumbnailL();

        //start decoding the image

        iGlxDecoderAO->ConvertImageL(*iDecodedBitmap[EJpgDecodedBitmapIndex],iImageDecoder);

        }

    }

// -----------------------------------------------------------------------------

// InitiateHdmiL 

// -----------------------------------------------------------------------------

void CGlxHdmiSurfaceUpdater::InitiateHdmiL(CFbsBitmap* aFsBitmap,const TDesC& aImageFile)

    {

    TRACER("CGlxHdmiSurfaceUpdater::InitiateHdmiL()");

    iImagePath = aImageFile.Alloc();

    iFsBitmap = new (ELeave) CFbsBitmap;

    iFsBitmap->Duplicate(aFsBitmap->Handle());

    iIsNonJpeg = EFalse;

    iTvScreenSize = iWindow->Size();

    iBitmapReady = EFalse;

    iLeftCornerForZoom.iX = 0; 

    iLeftCornerForZoom.iY = 0;

    iZoom = ETrue;

    }

// -----------------------------------------------------------------------------

// CreateHDMI 

// -----------------------------------------------------------------------------

void CGlxHdmiSurfaceUpdater::CreateHdmiL(TBool aCreateSurface)

    {

    TRACER("CGlxHdmiSurfaceUpdater::CreateHdmiL()");

    if (aCreateSurface)

        {

        GLX_LOG_INFO("CGlxHdmiSurfaceUpdater::CreateHdmiL() Create Surface");

        CreateSurfaceL();        

        }

    // Active objects for double buffered draw signalling

    if(!iSurfBufferAO)

        {

        iSurfBufferAO = new(ELeave) CGlxActiveCallBack(TCallBack(SurfBuffer0Ready, this),

                    CActive::EPriorityStandard-1);

        CActiveScheduler::Add(iSurfBufferAO);    

        }

    }

// -----------------------------------------------------------------------------

// CreateSurfaceL 

// -----------------------------------------------------------------------------

void CGlxHdmiSurfaceUpdater::CreateSurfaceL()

    {

    TRACER("CGlxHdmiSurfaceUpdater::CreateSurfaceL()");

    iSurfManager = new(ELeave) RSurfaceManager();

    TInt error = iSurfManager->Open();

    GLX_LOG_INFO1("CGlxHdmiSurfaceUpdater::CreateSurfaceL Open Surface manager error = %d", error);

    User::LeaveIfError(error);

    RSurfaceManager::TSurfaceCreationAttributesBuf attributes;

    attributes().iPixelFormat           = EUidPixelFormatARGB_8888;// EUidPixelFormatYUV_420Planar;

    attributes().iSize                  = iTvScreenSize;

    attributes().iBuffers               = 1;

    attributes().iStride                = iTvScreenSize.iWidth * KMulFactorToCreateBitmap;  

    attributes().iAlignment             = KMulFactorToCreateBitmap;

    attributes().iContiguous            = EFalse;

    attributes().iMappable              = ETrue;

    error = iSurfManager->CreateSurface(attributes, iSurfId);

    GLX_LOG_INFO1("CGlxHdmiSurfaceUpdater::CreateSurfaceL, Creating surface error : %d",error);

    if(error == KErrNoMemory)

    	{

    	GLX_LOG_INFO("CGlxHdmiSurfaceUpdater::CreateSurfaceL(). iSurfManager->Close()"); 

		iSurfManager->Close();

		delete iSurfManager;

		iSurfManager = NULL;

    	if(iShiftToCloning == EFalse)

    		{

    		// Show Error Note

    		iShiftToCloning = ETrue;

    		}

    	ShiftToCloningMode();	 	 	 	 	 	 	  // Shift from Posting Mode to Cloning Mode

    	}

    User::LeaveIfError(error);

    //Map the surface and stride the surface info

    MapSurfaceL();

    // Set the Configuration to the surface ID when creating a surface

    iConfig.SetSurfaceId(iSurfId);

    }

// -----------------------------------------------------------------------------

// MapSurfaceL 

// -----------------------------------------------------------------------------

void CGlxHdmiSurfaceUpdater::MapSurfaceL()

    {

    TRACER("CGlxHdmiSurfaceUpdater::MapSurfaceL()");

    //Create chunk to map it to the surface ID.

    iSurfChunk = new(ELeave) RChunk();

    User::LeaveIfNull(iSurfChunk);    

    TInt error = iSurfManager->MapSurface(iSurfId, *iSurfChunk);

    GLX_LOG_INFO1("CGlxHdmiSurfaceUpdater::MapSurfaceL(), MapSurface error : %d",error);

    User::LeaveIfError(error);

    // Get the info from the surfaceManager

    // and store pointers to the pixel data

    RSurfaceManager::TInfoBuf info;

    error = iSurfManager->SurfaceInfo(iSurfId, info);

    GLX_LOG_INFO1("CGlxHdmiSurfaceUpdater::MapSurfaceL(), SurfaceInfo error : %d",error);

    User::LeaveIfError(error);  

    iSurfaceStride = info().iStride;    

    TInt offset = 0;

    iSurfManager->GetBufferOffset( iSurfId, 0,offset);

    iSurfBuffer = iSurfChunk->Base()+offset;

    }

// -----------------------------------------------------------------------------

// SurfBuffer0Ready 

// -----------------------------------------------------------------------------

TInt CGlxHdmiSurfaceUpdater::SurfBuffer0Ready(TAny* /*aObject*/)

    {

    TRACER("CGlxHdmiSurfaceUpdater::SurfBuffer0Ready()");

    return ETrue;

    }

// -----------------------------------------------------------------------------

// Refresh 

// -----------------------------------------------------------------------------

void CGlxHdmiSurfaceUpdater::Refresh()

    {

    TRACER("CGlxHdmiSurfaceUpdater::Refresh()");

    // copy the decoded bitmap on to the surface

    SwapBuffers();     

    // refresh the window

    iCallBack->DoGenCallback();       

    }

// -----------------------------------------------------------------------------

// SwapBuffers

// This is used to sawp the buffers shown and to be shown 

// After this is done, a refresh to the window should be done to refresh the TV

// -----------------------------------------------------------------------------

void CGlxHdmiSurfaceUpdater::SwapBuffers()

    {

    TRACER("CGlxHdmiSurfaceUpdater::SwapBuffers()"); 

    TInt bitmapIndex = KErrNotFound;

    if (iShwFsThumbnail) // show FS thumbnail

        {

        bitmapIndex = EFSBitmapIndex;

        }

    else if(iIsNonJpeg && !iShwFsThumbnail) // this indicates it is non jpeg image and decoding finished

        {

        bitmapIndex = ENonJpgDecodedBitmapIndex;

        }

    else                // if none of the above state means it is jpeg image and decoding finished

        {

        bitmapIndex = EJpgDecodedBitmapIndex;

        }

    // Lock the heap so that subsequent call to dataaddress doesnt happen

    iDecodedBitmap[bitmapIndex]->LockHeap();    

    // Data stride

    TUint fs = iDecodedBitmap[bitmapIndex]->DataStride();    

    //Bitmap address from where the data has to be copied.

    TUint8* from = (TUint8*)iDecodedBitmap[bitmapIndex]->DataAddress();

    //surface chunk address to where the bitmap data has to be copied.

    TUint8* to = (TUint8*)iSurfBuffer;    

    // To buffer (32 bit colors)

    TUint ts = iSurfaceStride;

    //No of bytes to be copied on to the surface.

    TUint bytes = iDecodedBitmap[bitmapIndex]->SizeInPixels().iWidth * KMulFactorToCreateBitmap;

    GLX_LOG_INFO2("CGlxHdmiSurfaceUpdater::SwapBuffers() - decodeSize width = %d and height %d",

            iDecodedBitmap[bitmapIndex]->SizeInPixels().iWidth, 

            iDecodedBitmap[bitmapIndex]->SizeInPixels().iHeight );

    // Copy the bitmap on to the surface.

    for (TInt y = iDecodedBitmap[bitmapIndex]->SizeInPixels().iHeight; y >0; y--)

        {

        Mem::Copy(to, from, bytes);        

        to += ts;        

        from += fs;        

        }            

    iDecodedBitmap[bitmapIndex]->UnlockHeap();

    }

// -----------------------------------------------------------------------------

// CreateBitmapL 

// -----------------------------------------------------------------------------

void CGlxHdmiSurfaceUpdater::CreateBitmapL()

    {

    TRACER("CGlxHdmiSurfaceUpdater::CreateBitmapL()");

    TSize imageSize = iImageDecoder->FrameInfo().iOverallSizeInPixels;

    GLX_LOG_INFO2("CGlxHdmiSurfaceUpdater::StartImageDecodeL() - bitmapsize=%d, %d",

            imageSize.iWidth,imageSize.iHeight);

    TReal32 scaleFactor = 0.0f;

    if (iTvScreenSize.iWidth * imageSize.iHeight > iTvScreenSize.iHeight

            * imageSize.iWidth)

        {

        scaleFactor = (TReal32) iTvScreenSize.iHeight

                / (TReal32) imageSize.iHeight;

        }

    else

        {

        scaleFactor = (TReal32) iTvScreenSize.iWidth

                / (TReal32) imageSize.iWidth;

        }

    GLX_LOG_INFO1("CGlxHdmiSurfaceUpdater::StartImageDecodeL() - scaleFactor=%f",scaleFactor);

    iTargetBitmapSize.iHeight = imageSize.iHeight * scaleFactor;

    iTargetBitmapSize.iWidth = imageSize.iWidth * scaleFactor;

	GLX_LOG_INFO2("CGlxHdmiSurfaceUpdater::StartImageDecodeL() - targetBitmapSize=%d, %d",

	        iTargetBitmapSize.iWidth,iTargetBitmapSize.iHeight);

    //create the bitmap for the required size

    iDecodedBitmap[EJpgDecodedBitmapIndex] = new (ELeave) CFbsBitmap();

    // to check if the Mimetype is supported by the decoder to to arbitary scaling

    // if not then we recalculate the size

    TInt err = iDecodedBitmap[EJpgDecodedBitmapIndex]->Create(ReCalculateSizeL(), EColor16MU);

    User::LeaveIfNull(iDecodedBitmap[EJpgDecodedBitmapIndex]);

    }

// -----------------------------------------------------------------------------

// DoesMimeTypeNeedsRecalculateL()

// -----------------------------------------------------------------------------

//

TBool CGlxHdmiSurfaceUpdater::DoesMimeTypeNeedsRecalculateL()

    {

    TRACER("CGlxHdmiSurfaceUpdater::DoesMimeTypeNeedsRecalculateL");

    RApaLsSession session;

    TDataType mimeType;

    TUid uid;

    User::LeaveIfError( session.Connect() );

    CleanupClosePushL( session );

    User::LeaveIfError( session.AppForDocument( iImagePath->Des(), uid, mimeType ) );

    CleanupStack::PopAndDestroy(&session);

    if (mimeType.Des().Compare(KMimeJpeg)==0 ||

            mimeType.Des().Compare(KMimeJpg)==0)

        {

        GLX_LOG_INFO("CGlxHdmiSurfaceUpdater::DoesMimeTypeNeedsRecalculateL - jpeg");

        return EFalse;

        }

    else

        {

        GLX_LOG_INFO("CGlxHdmiSurfaceUpdater::DoesMimeTypeNeedsRecalculateL - non jpeg");

        return ETrue; 

        }

    }

// -----------------------------------------------------------------------------

// ReCalculateSize 

// -----------------------------------------------------------------------------

TSize CGlxHdmiSurfaceUpdater::ReCalculateSizeL()

    {

    TRACER("CGlxHdmiSurfaceUpdater::ReCalculateSizeL()");

    if(DoesMimeTypeNeedsRecalculateL())

        {

        iIsNonJpeg = ETrue;

        TSize fullFrameSize = iImageDecoder->FrameInfo().iOverallSizeInPixels;

        // calculate the reduction factor on what size we need

        TInt reductionFactor = iImageDecoder->ReductionFactor(fullFrameSize, iTargetBitmapSize);

        // get the reduced size onto destination size

        TSize destSize;

        User::LeaveIfError(iImageDecoder->ReducedSize(fullFrameSize, reductionFactor, destSize));

        GLX_LOG_INFO2("CGlxHdmiSurfaceUpdater::ReCalculateSizeL() - destSize=%d, %d",destSize.iWidth,destSize.iHeight);

        return destSize;

        }

    else

        {

        return iTargetBitmapSize;

        }

    }

// -----------------------------------------------------------------------------

// HandleRunL 

// -----------------------------------------------------------------------------

void CGlxHdmiSurfaceUpdater::HandleRunL(TRequestStatus& aStatus)

    {

    TRACER("CGlxHdmiSurfaceUpdater::HandleRunL()");