openvg/openvgrefimplementation/sfopenvg/test/src/tigerContainer.cpp
author Matt Plumtree <matt.plumtree@nokia.com>
Fri, 23 Apr 2010 17:57:02 +0100
branchNewGraphicsArchitecture
changeset 39 a4b63488e0b0
parent 6 250ac10a3d98
permissions -rw-r--r--
Revise some of the compositor performance improvements to improve correctness. Implement pixel blending using a variation of Jim Blinn's no-division blending algorithm. Move transparency type simplification further up the composition code. Remove some unnecessary fields. Output to YUV implementation needs revision as it is actually converting from YUV (copy of source conversion code).

/*
* Copyright (c) 2009 Symbian Foundation Ltd
* This component and the accompanying materials are made available
* under the terms of the License "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:
* Symbian Foundation Ltd - initial contribution.
* 
* Contributors:
*
* Description:
* Implementation of CTigerContainer class
*/


// INCLUDE FILES
#include "TigerContainer.h"

// ================= MEMBER FUNCTIONS =======================

// ---------------------------------------------------------
// CTigerContainer::ConstructL(const TRect& aRect)
// EPOC two phased constructor
// ---------------------------------------------------------
//
void CTigerContainer::ConstructL(const TRect& /*aRect*/)
    {
//    iOpenGlInitialized = EFalse;
    CreateWindowL();

    SetExtentToWholeScreen();                // Take the whole screen into use
    ActivateL();
            
    TSize size;
    size = this->Size();

    iTiger = CTiger::NewL(size.iWidth, size.iHeight ); // Create an instance of Tiger
    
    iTiger->AppInit(Window());
    
    return;
    }

// Destructor
CTigerContainer::~CTigerContainer()
    {
    /* AppExit call is made to release
       any allocations made in AppInit. */
    if ( iTiger )
        {
        iTiger->AppExit();
        delete iTiger;
        }
    }

// ---------------------------------------------------------
// CTigerContainer::SizeChanged()
// Called by framework when the view size is changed
// ---------------------------------------------------------
//
void CTigerContainer::SizeChanged()
    {
    if( iTiger )
        {
        TSize size;
        size = this->Size();
        iTiger->SetScreenSize( size.iWidth, size.iHeight );
        }
    }


// ---------------------------------------------------------
// CTigerContainer::HandleResourceChange(
//     TInt aType)
// Dynamic screen resize changes by calling the
// SetExtentToWholeScreen() method again.
// ---------------------------------------------------------
//
 void CTigerContainer::HandleResourceChange(TInt aType)
    {
	switch( aType )
    	{
	    case KEikDynamicLayoutVariantSwitch:
		    SetExtentToWholeScreen();
		    break;
	    }
    }

// ---------------------------------------------------------
// CTigerContainer::CountComponentControls() const
// ---------------------------------------------------------
//
TInt CTigerContainer::CountComponentControls() const
    {
    return 0;
    }

// ---------------------------------------------------------
// CTigerContainer::ComponentControl(TInt aIndex) const
// ---------------------------------------------------------
//
CCoeControl* CTigerContainer::ComponentControl(TInt /*aIndex*/ ) const
    {
    return NULL;
    }

// ---------------------------------------------------------
// CTigerContainer::Draw(const TRect& aRect) const
// ---------------------------------------------------------
//
void CTigerContainer::Draw(const TRect& aRect ) const
    {
    
    CWindowGc& gc = SystemGc();
    TRgb color(KRgbRed);
    gc.SetBrushColor(color);
	gc.SetPenStyle(CGraphicsContext::ENullPen);
	gc.SetBrushStyle(CGraphicsContext::ESolidBrush);
	gc.DrawRect(Rect());
	
	//set up destination CFbsBitmap object
	CFbsBitmap* bitmap=NULL;
	TRAPD(err, bitmap = new(ELeave)CFbsBitmap;);
	if(bitmap)
		{
		const TDisplayMode dispMode = Window().DisplayMode();
			//copy from source (EGL) to target(CFbsBitmap) buffer
		iTiger->AppRender(aRect, bitmap);		
		RenderBitmap(gc, bitmap);
		delete bitmap;
		}
	}

void  CTigerContainer::RenderBitmap(CWindowGc& aGc, CFbsBitmap* aBitmap) const
	{
	//draw bitmap
	// calculate position for top left of bitmap so it is centered
	TSize bmpSizeInPixels=aBitmap->SizeInPixels();
	TRect rect=Rect(); // a centered rectangle of the default size
	TInt xDelta=(rect.Width()-bmpSizeInPixels.iWidth)/2;
	TInt yDelta=(rect.Height()-bmpSizeInPixels.iHeight)/2;
	TPoint pos=TPoint(xDelta,yDelta); // displacement vector
	pos+=rect.iTl; // bitmap top left corner position
	aGc.BitBlt(pos, aBitmap); // CWindowGc member function	
	}



// ---------------------------------------------------------
// CTigerContainer::HandleControlEventL(
//     CCoeControl* aControl,TCoeEvent aEventType)
// ---------------------------------------------------------
//
void CTigerContainer::HandleControlEventL(
    CCoeControl* /*aControl*/,TCoeEvent /*aEventType*/)
    {
    }

// End of File