/*

* 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 <imageconversion.h> 

#include <fbs.h>

#include <glxtracer.h>

#include <glxlog.h>

#include "glxactivecallback.h"

#include "glxhdmisurfaceupdater.h"

#include "glxactivedecoder.h"

// 720p image size

const TInt KHdTvWidth = 1280;

const TInt KHdTvHeight = 720;

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;

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

// NewLC

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

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

        TSize aImageDimensions, TInt aFrameCount, MGlxGenCallback* aCallBack)

    {

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

    CGlxHdmiSurfaceUpdater* self = new (ELeave) CGlxHdmiSurfaceUpdater(aWindow, aImageFile,

            aImageDimensions, aFrameCount, aCallBack);

    CleanupStack::PushL(self);

    self->ConstructL(aImageDimensions);

    CleanupStack::Pop(self);

    return self;

    }

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

// destructor 

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

CGlxHdmiSurfaceUpdater::~CGlxHdmiSurfaceUpdater()

    {

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

    ReleaseContent();

    if(iWindow)

        {

        iWindow->RemoveBackgroundSurface(ETrue);

        }

    if(iTimer->IsActive())

        {

        iTimer->Cancel();

        }

    delete iTimer;   

    if (iGlxDecoderAO)

        {

        delete iGlxDecoderAO;

        }        

    iGlxDecoderAO = NULL;

    iFsSession.Close();

    if (iSurfManager)

        {

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

        {

        iGlxDecoderAO->Cancel();

        }

    if ( iDecodedBitmap )

        {

        delete iDecodedBitmap;

        iDecodedBitmap= NULL;

        {

        }

    if ( iImageDecoder )

        {

        delete iImageDecoder;

        iImageDecoder = NULL;    

        }

    }

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

// CTor 

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

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

        TSize aOrigImageDimensions, TInt aFrameCount, MGlxGenCallback* aCallBack): 

        iWindow(aWindow), iImagePath(aImageFile), iOrigImageDimensions(aOrigImageDimensions),

        iFrameCount(aFrameCount ),iCallBack(aCallBack)

    {

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

    // Implement nothing here

    }

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

// ConstructL 

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

void CGlxHdmiSurfaceUpdater::ConstructL(TSize /*aImageDimensions*/)

    {

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

    TInt error = iFsSession.Connect ();

    iBitmapReady = EFalse;

    // Create the active object

    iGlxDecoderAO = CGlxHdmiDecoderAO::NewL(this, iFrameCount);

    CreateImageDecoderL(iImagePath);

    CreateBitmapL();

    CreateHdmiL();

    error = iSurfUpdateSession.Connect();

#ifdef _DEBUG

    iStartTime.HomeTime();

#endif

    //start decoding the image    

    iLeftCornerForZoom.iX = 0; 

    iLeftCornerForZoom.iY = 0;

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

    iZoom = ETrue;

    }

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

// UpdateNewImageL 

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

void CGlxHdmiSurfaceUpdater::UpdateNewImageL(const TDesC& aImageFile, 

        TInt /*aFrameCount*/,TSize aImageDimensions)

    {

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

    iOrigImageDimensions = aImageDimensions;

	iBitmapReady = EFalse;

    ReleaseContent();   

    CreateImageDecoderL(aImageFile);    

    CreateBitmapL();

    CreateHdmiL(EFalse);

#ifdef _DEBUG

    iStartTime.HomeTime();

#endif

    //start decoding the image

    iGlxDecoderAO->ConvertImageL(*iDecodedBitmap,0,iImageDecoder);

    }

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

// 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()");

    TSize surfaceSize = iWindow->Size();   // create surface of the screen size, i.e 1280x720

    iSurfManager = new(ELeave) RSurfaceManager();

    TInt error = iSurfManager->Open();

    RSurfaceManager::TSurfaceCreationAttributesBuf attributes;

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

    attributes().iSize                  = surfaceSize;

    attributes().iBuffers               = 1;

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

    attributes().iAlignment             = KMulFactorToCreateBitmap;

    attributes().iContiguous            = EFalse;

    attributes().iMappable              = ETrue;

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

    //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);

    // Get the info from the surfaceManager

    // and store pointers to the pixel data

    RSurfaceManager::TInfoBuf info;

    User::LeaveIfError(error);  

    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();   

    // Modify the surface position with respect to the buffer size 

	ModifySurfacePostion();

	// 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()"); 

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

    iDecodedBitmap->LockHeap();    

    // Data stride

    TUint fs = iDecodedBitmap->DataStride();    

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

    TUint8* from = (TUint8*)iDecodedBitmap->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->SizeInPixels().iWidth * KMulFactorToCreateBitmap;

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

            iDecodedBitmap->SizeInPixels().iWidth, iDecodedBitmap->SizeInPixels().iHeight );

    // Copy the bitmap on to the surface.

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

        {

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

        to += ts;        

        from += fs;        

        }            

    iDecodedBitmap->UnlockHeap();

    }

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

// StartImageDecodeL 

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

void CGlxHdmiSurfaceUpdater::CreateBitmapL()

    {

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

    TSize scrnSize = iWindow->Size();

    TSize targetBitmapSize;

    GLX_LOG_INFO2("CGlxHdmiSurfaceUpdater::StartImageDecodeL() - bitmapsize=%d, %d",iOrigImageDimensions.iWidth,iOrigImageDimensions.iHeight);

    TReal32 scaleFactor = 0.0f;

    if (scrnSize.iWidth * iOrigImageDimensions.iHeight > scrnSize.iHeight

            * iOrigImageDimensions.iWidth)

        {

        scaleFactor = (TReal32) scrnSize.iHeight

                / (TReal32) iOrigImageDimensions.iHeight;

        }

    else

        {

        scaleFactor = (TReal32) scrnSize.iWidth

                / (TReal32) iOrigImageDimensions.iWidth;

        }

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

    targetBitmapSize.iHeight = iOrigImageDimensions.iHeight * scaleFactor;

    targetBitmapSize.iWidth = iOrigImageDimensions.iWidth * scaleFactor;

    GLX_LOG_INFO2("CGlxHdmiSurfaceUpdater::StartImageDecodeL() - targetBitmapSize=%d, %d",targetBitmapSize.iWidth,targetBitmapSize.iHeight);

    //create the bitmap for the required size

    iDecodedBitmap = new (ELeave) CFbsBitmap();

    TInt err = iDecodedBitmap->Create(targetBitmapSize, EColor16MU);

    User::LeaveIfNull(iDecodedBitmap);

    }

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

// HandleRunL 

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

void CGlxHdmiSurfaceUpdater::HandleRunL(TRequestStatus& aStatus)

    {

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

#ifdef _DEBUG

    iStopTime.HomeTime();

    GLX_LOG_INFO1("CGlxHdmiSurfaceUpdater::HandleRunL() ConvertImageL took"

            " <%d> us", (TInt)iStopTime.MicroSecondsFrom(iStartTime).Int64());

#endif

    if(aStatus.Int() !=KErrNone)

        {

        GLX_LOG_INFO("HandleRunL - Convert failed");

        ShiftToCloningMode();

        }

    else

        iZoomRectSz = iDecodedBitmap->SizeInPixels();

        if (iSurfBufferAO->iStatus != KRequestPending

                && !iSurfBufferAO->IsActive())

            {

            Refresh();

            iSurfBufferAO->iStatus = KRequestPending;

            iSurfBufferAO->SetActive();

            iSurfUpdateSession.NotifyWhenAvailable(iSurfBufferAO->iStatus);

            TInt err = iSurfUpdateSession.SubmitUpdate(1, iSurfId, 0, NULL);

            }

        }

	//release imagedecoder after the conversion is over		

    if(iImageDecoder)

        {

        delete iImageDecoder;

        iImageDecoder = NULL;    

        }

    }

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

// CreateImageDecoderL 

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

void CGlxHdmiSurfaceUpdater::CreateImageDecoderL(const TDesC& aImageFile)

    {

    TRACER("CGlxHdmiController::CreateImageDecoderL()");

     // Create a decoder for the image in the named file

    TRAPD(error,iImageDecoder = CImageDecoder::FileNewL(iFsSession, 

            aImageFile, CImageDecoder::EOptionNone, KNullUid));

    }

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

// ActivateZoom 

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

    {

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

    iZoom = ETrue;

    if(!iTimer->IsActive() && iBitmapReady)

       {

       iTimer->Start(KZoomDelay,KZoomDelay,TCallBack( TimeOut,this ));

       }

    }

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

// DeactivateZoom 

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

void CGlxHdmiSurfaceUpdater::DeactivateZoom()

    {

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

        {

        }

    }

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

// TimeOut

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

//  

TInt CGlxHdmiSurfaceUpdater::TimeOut(TAny* aSelf)

    {

    TRACER("CGlxHdmiSurfaceUpdater::TimeOut");

    if(aSelf)

        {

        CGlxHdmiSurfaceUpdater* self = static_cast <CGlxHdmiSurfaceUpdater*> (aSelf);

        if (self)

            {            

             self->Zoom(ETrue);

            }

        }

    return KErrNone;

    }

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

// Zoom 

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

void CGlxHdmiSurfaceUpdater::Zoom(TBool aZoom)

    {

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

    if(iLeftCornerForZoom.iX == KMaxZoomLimit)

        {

        iZoom = EFalse;