/*

* Copyright (c) 2008 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:  NVG Decoder source file

*

*/

#include "TLVIconCreator.h"

#include "MVGImageBinder.h"

#include "NVGUtil.h"

#include "NVGIconData.h"

#include "NVGTLVIcon.h"

#include "nvg.h"

/*

 * Length of each encoded OpenVG API in bytes. -1 if not pre known.

 * The order here and in the enum TOpenVGAPI should be same.

 */ 

const TInt APICommandLength[] = 

    {

    16, //EvgClear

     4, //EvgSeti

     6, //EvgSetf

    -1, //EvgSetfv

     8, //EvgSetParameteri

     10, //EvgSetParameterf

    -1, //EvgSetParameterfv

     8, //EvgSetColor

     5, //EvgSetPaint

    36, //EvgLoadMatrix

    36, //EvgMultMatrix

     0, //EvgLoadIdentity

     8, //EvgScale

     4, //EvgRotate

     8, //EvgTranslate

    -1, //EvgAppendPathData

     6, //EvgDrawPath

     6, //EvgClearPath

    20, //EvguRect

    20, //EvguEllipse

    28, //EvguRoundRect

    20, //EvguLine

     4, //EvgCreatePaint

    29, //EvgCreatePath

     0, //EvgGetPixels

     4, //EvgDestroyImage

     0, //EvgDestroyPaint

     0, //EvgDestroyPath

    -1, //EvgSetiv

    17, //EvgCreateImage

     4, //EvgDrawImage

    20, //EvgClearImage

    -1, //EvgImageSubData

     0, //EvgPrepareToBindImage

     4, //EvgBindImage

     0, //EvgUnBindImage

     0  //EvgFlush

    };

CTLVIconCreator::CTLVIconCreator(TInt aWidth, TInt aHeight, CNVGTLVIcon * aNVGTLVIcon)

        : 

        iNVGDataPtr((TUint8 *)&aWidth, 1)

    {

    iTargetWidth        = aWidth;

    iTargetHeight       = aHeight;

    iPrepareToBindImage = 0;

    iNVGTLVIcon         = aNVGTLVIcon;

    iLastVGPath         = 0;

    }

CTLVIconCreator * CTLVIconCreator::NewL(const TDesC8& aBuf, TInt aWidth, TInt aHeight, CNVGTLVIcon * aNVGTLVIcon)

    {

    CTLVIconCreator* self    = CTLVIconCreator::NewLC(aBuf,aWidth, aHeight, aNVGTLVIcon);

    CleanupStack::Pop(self);

    return self;

    }

CTLVIconCreator * CTLVIconCreator::NewLC(const TDesC8& aBuf, TInt aWidth, TInt aHeight, CNVGTLVIcon * aNVGTLVIcon)

    {

    CTLVIconCreator* self    = new (ELeave) CTLVIconCreator(aWidth, aHeight, aNVGTLVIcon);

    CleanupStack::PushL(self);

    self->ConstructL(aBuf);

    return self;

    }

void CTLVIconCreator::ConstructL(const TDesC8& aBuf)

    {

    vgGetMatrix(iUserMatrix);

    iNVGIconData = CNVGIconData::NewL(aBuf);

    iDataLength  = aBuf.Length();

    iCommandBuffer = (TUint8 *)aBuf.Ptr();

    iNVGIconData->BeginRead();

    iNVGIconData->ReadL(iNvgHeader, sizeof(iNvgHeader));

    iNVGTLVIcon->AddCommandL(iNvgHeader, sizeof(iNvgHeader));

    }

CTLVIconCreator::~CTLVIconCreator()

    {    

    delete iNVGIconData;    

    }

void CTLVIconCreator::DvgAddCommandL(TInt aLength, TInt aPos)

    {

    iNVGTLVIcon->AddCommandL(iCurrentCommand, iCommandBuffer + aPos, aLength);

    }

void CTLVIconCreator::DvgAddCommandL()

    {

    iNVGTLVIcon->AddCommandL(iCurrentCommand, iCommandBuffer + iNVGIconData->ReadPos(),

                            APICommandLength[iCurrentCommand]);

    iNVGIconData->SkipL(APICommandLength[iCurrentCommand]);

    }

void CTLVIconCreator::DvgSetParameterfvL()    

    {

    TInt length = 0;

    TInt cpos = iNVGIconData->ReadPos();

    TUint32 pvalue = iNVGIconData->ReadInt32L();

    iNVGIconData->ReadInt16L();

    TUint32 countt = iNVGIconData->ReadInt32L();

    length = length + sizeof(TUint32) + sizeof(TUint16) + sizeof(TUint32) + countt * sizeof(float);

    iNVGIconData->SkipL(countt * sizeof(TReal32));

    DvgAddCommandL(length, cpos);

    }

void CTLVIconCreator::DvgSetivL()    

    {

    TInt length   = 0;

    TInt cpos     = iNVGIconData->ReadPos();

    TUint16 type  = iNVGIconData->ReadInt16L();

    TUint16 count = iNVGIconData->ReadInt16L();

    length = sizeof(TInt16) + sizeof(TInt16);

    length += count * sizeof(TInt32);

    iNVGIconData->SkipL(count * sizeof(TInt32));

    DvgAddCommandL(length, cpos);

    }             

VGPath  CTLVIconCreator::CreatePathL()

    {

    const float KScale = 1.0f / 65536.0f;

    VGPath pathH = vgCreatePath( VG_PATH_FORMAT_STANDARD,

                                  VG_PATH_DATATYPE_S_32, KScale, 0.0f, 0, 0,

                                  VG_PATH_CAPABILITY_APPEND_TO );

    if (pathH == VG_INVALID_HANDLE)

        {

        User::LeaveIfError(CNvgEngine::OpenVGErrorToSymbianError(vgGetError()));

        }

    return pathH;

    }

void CTLVIconCreator::DvgAppendPathDataL()    

    {

    TUint16         numSegments;

    TUint16         coordinatecount;

    VGubyte *       pathSegments;

    TFloatFixPt *   pathData;

    TFloatFixPt *   coordhandle;    

    iNVGIconData->ReadInt32L();

    numSegments = iNVGIconData->ReadInt16L();

    pathSegments = new (ELeave) VGubyte[numSegments];

    CleanupStack::PushL(TCleanupItem(CleanupArray, pathSegments));

    for(int j=0; j < numSegments; j++)

        {	

        pathSegments[j] = iNVGIconData->ReadInt8L();

        }

    coordinatecount = iNVGIconData->ReadInt16L();

    pathData = new (ELeave) TFloatFixPt[coordinatecount];

    CleanupStack::PushL(TCleanupItem(CleanupArray, pathData));

    TInt lFloatFixVal = 0;

    coordhandle = pathData;

    for(int i = 0; i < coordinatecount; i++, coordhandle++)					

        {

        lFloatFixVal = iNVGIconData->ReadInt32L();

        coordhandle->copyfloatfix(lFloatFixVal);

        }

    iLastVGPath = CreatePathL();

    vgAppendPathData(iLastVGPath, numSegments, pathSegments, pathData);  

    CleanupStack::PopAndDestroy(2);

    }

void CTLVIconCreator::DvgDrawPathL()    

    {

    iNVGIconData->ReadInt32L();

    TUint16 value = iNVGIconData->ReadInt16L();

    iNVGTLVIcon->AddDrawPathCommandL(iLastVGPath, (VGPaintMode)value);    

    }

void CTLVIconCreator::DvguRectL()

    {

    iNVGIconData->ReadInt32L();

    TReal32 x   = iNVGIconData->ReadReal32L();

    TReal32 y   = iNVGIconData->ReadReal32L();

    TReal32 width   = iNVGIconData->ReadReal32L();

    TReal32 height  = iNVGIconData->ReadReal32L();

    iLastVGPath = CreatePathL();    

    vguRect(iLastVGPath, x, y, width, height);

    }

void CTLVIconCreator::DvguEllipseL()

    {

    TReal32 cx;

    TReal32 cy;

    TReal32 width;

    TReal32 height;

    iNVGIconData->ReadInt32L();

    cx = iNVGIconData->ReadReal32L();

    cy = iNVGIconData->ReadReal32L();

    width  = iNVGIconData->ReadReal32L();

    height = iNVGIconData->ReadReal32L();

    iLastVGPath = CreatePathL();    

    vguEllipse(iLastVGPath, cx, cy, width, height);

    }

void CTLVIconCreator::DvguRoundRectL()

    {

    TReal32 x;

    TReal32 y;

    TReal32 width;

    TReal32 height;

    TReal32 arcWidth;

    TReal32 arcHeight;      

    iNVGIconData->ReadInt32L();

    x = iNVGIconData->ReadReal32L();

    y = iNVGIconData->ReadReal32L();

    width = iNVGIconData->ReadReal32L();

    height= iNVGIconData->ReadReal32L();

    arcWidth = iNVGIconData->ReadReal32L();

    arcHeight= iNVGIconData->ReadReal32L();

    iLastVGPath = CreatePathL();    

    vguRoundRect(iLastVGPath, x, y, width, height, arcWidth, arcHeight);

    }

void CTLVIconCreator::DvguLineL()

    {

    TReal32 x0;

    TReal32 y0;

    TReal32 x1;

    TReal32 y1;

    iNVGIconData->ReadInt32L();

    x0 = iNVGIconData->ReadReal32L();

    y0 = iNVGIconData->ReadReal32L();

    x1 = iNVGIconData->ReadReal32L();

    y1 = iNVGIconData->ReadReal32L();

    iLastVGPath = CreatePathL();

    vguLine(iLastVGPath, x0, y0, x1, y1);

    }

void CTLVIconCreator::DvgSetfvL()

    {

    TUint16 count;

    TInt length = 0;

    TInt cpos   = iNVGIconData->ReadPos();

    iNVGIconData->ReadInt16L();

    count = iNVGIconData->ReadInt16L();

    iNVGIconData->SkipL(sizeof(TReal32) * count);

    length = length + 2 * sizeof(TUint16) + count * sizeof(VGfloat);

    DvgAddCommandL(length, cpos);

    }

void CTLVIconCreator::DvgCreatePathL()

    {

    iNVGIconData->SkipL(APICommandLength[EvgCreatePath]);

    }

void CTLVIconCreator::DvgImageSubDataL()

    {

    TInt cpos   = iNVGIconData->ReadPos();

    TInt encodedImageHandle = iNVGIconData->ReadInt32L();

    TInt dataLength         = 0;

    iNVGIconData->ReadInt32L();

    iNVGIconData->ReadInt32L();

    iNVGIconData->ReadInt32L();

    iNVGIconData->ReadInt32L();

    iNVGIconData->ReadInt32L();

    iNVGIconData->ReadInt32L();        

    dataLength      = iNVGIconData->ReadInt32L();

    iNVGIconData->SkipL(dataLength);

    DvgAddCommandL(iNVGIconData->ReadPos() - cpos, cpos);

    }

void CTLVIconCreator::DvgGetPixelsL()

    {

    }

void CTLVIconCreator::DvgDestroyPaintL()

    {

    }

void CTLVIconCreator::DvgDestroyPathL()

    {

    }

void CTLVIconCreator::DvgFlushL()

    {

    }

TInt CTLVIconCreator::ExecuteL(TInt aIndex)

    {

    iCurrentCommand = aIndex;

    if (0 <= aIndex && aIndex < EvgFlush + 1)

        {

        (this->*(vgapi[aIndex]))();

        }

    else

        {

        return KErrCorrupt;

        }

    return KErrNone;

    }

TInt CTLVIconCreator::ExecuteL()

    {

    TInt error = KErrNone;

    while (!iNVGIconData->EOF())

        {

        error = ExecuteL(iNVGIconData->ReadInt8L());

        if (error != KErrNone)

            {

            break;

            }

        }

    return error;

    }