examples/sfexamples/GfxWorkbench/src/GfxBitBitView.cpp

/*
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  and/or other materials provided with the distribution.
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  may be used to endorse or promote products derived from this software
  without specific prior written permission.

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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Description:  Application view implementation
*/ 


// INCLUDE FILES
#include <GDI.H>
#include <coemain.h>
#include <EIKENV.H>
#include "GfxBitBlitView.h"
#include "GfxVideoPlayer.h"
#include "hal.h"
#include "CGfxTimer.h"

const TInt KNumberOfTests = 12;
const TInt KNumOfBlits = 1000;
const TTimeIntervalMicroSeconds32 KProfileYieldInMicroSeconds = 1000000/20;

_LIT(KLogFileDir, "c:\\data\\other\\");
_LIT(KLogFileName, "c:\\data\\other\\bitblit.txt");

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

// -----------------------------------------------------------------------------
// CGfxDirectScreenBitmapView::NewL()
// Two-phased constructor.
// -----------------------------------------------------------------------------
//
CGfxBitBlitView* CGfxBitBlitView::NewL( const TRect& aRect )
        {
        CGfxBitBlitView* self = CGfxBitBlitView::NewLC( aRect );
        CleanupStack::Pop( self );
        return self;
        }

// -----------------------------------------------------------------------------
// CGfxDirectScreenBitmapView::NewLC()
// Two-phased constructor.
// -----------------------------------------------------------------------------
//
CGfxBitBlitView* CGfxBitBlitView::NewLC( const TRect& aRect )
        {
        CGfxBitBlitView* self = new ( ELeave ) CGfxBitBlitView;
        CleanupStack::PushL( self );
        self->ConstructL( aRect );
        return self;
        }

// -----------------------------------------------------------------------------
// CGfxDirectScreenBitmapView::ConstructL()
// Symbian 2nd phase constructor can leave.
// -----------------------------------------------------------------------------
//
void CGfxBitBlitView::ConstructL( const TRect& aRect )
        {
        // Create a window for this application view
        CreateWindowL();

        // Set the windows size
        SetRect( aRect );

        iTimer = new(ELeave) CGfxTimer(*this, 0);
        iTimer->ConstructL();
        
        // Activate the window, which makes it ready to be drawn
        ActivateL();
        }

// -----------------------------------------------------------------------------
// CGfxDirectScreenBitmapView::CGfxDirectScreenBitmapView()
// C++ default constructor can NOT contain any code, that might leave.
// -----------------------------------------------------------------------------
//
CGfxBitBlitView::CGfxBitBlitView()
        {
        }


// -----------------------------------------------------------------------------
// CGfxDirectScreenBitmapView::~CGfxDirectScreenBitmapView()
// Destructor.
// -----------------------------------------------------------------------------
//
CGfxBitBlitView::~CGfxBitBlitView()
        {
        delete iTimer;
        CloseLogFile();
        }


// -----------------------------------------------------------------------------
// CGfxDirectScreenBitmapView::Draw()
// Draws the display.
// -----------------------------------------------------------------------------
//
void CGfxBitBlitView::Draw( const TRect& /*aRect*/ ) const
        {
        // Get the standard graphics context
        CWindowGc& gc = SystemGc();

        // Gets the control's extent
        TRect drawRect( Rect());

        // Clears the screen
        gc.Clear( drawRect );
        }

// -----------------------------------------------------------------------------
// CGfxDirectScreenBitmapView::SizeChanged()
// Called by framework when the view size is changed.
// -----------------------------------------------------------------------------
//
void CGfxBitBlitView::SizeChanged()
        {  
        DrawNow();
        }
// End of File

CFbsBitmap* BitmapForDepthL(TDisplayMode aDisplayMode, TSize aSize)
        {
        CFbsBitmap* offScreenBitmap = new (ELeave) CFbsBitmap();
        CleanupStack::PushL(offScreenBitmap);
        User::LeaveIfError(offScreenBitmap->Create(aSize,aDisplayMode));
        
        // create an off-screen device and context
        CGraphicsContext* bitmapContext=NULL;
        CFbsBitmapDevice* bitmapDevice = CFbsBitmapDevice::NewL(offScreenBitmap);
        CleanupStack::PushL(bitmapDevice);
        User::LeaveIfError(bitmapDevice->CreateContext(bitmapContext));
        CleanupStack::PushL(bitmapContext);
        
        bitmapContext->SetBrushColor(KRgbRed);
        bitmapContext->SetBrushStyle(CGraphicsContext::ESolidBrush);
        //bitmapContext->Clear();
        
        CleanupStack::PopAndDestroy(2);
        CleanupStack::Pop(offScreenBitmap);
        return offScreenBitmap;
        }

void CGfxBitBlitView::StartL()
        {
        iCurrentTest = 0;
        CreateLogFileL();
        iTimer->Start(KProfileYieldInMicroSeconds);
        }

void CGfxBitBlitView::GfxTimerFiredL(TInt /*aId*/)
        {
        ProfileBitBlitL(iCurrentTest);
        
        iCurrentTest++;
        if(iCurrentTest<KNumberOfTests)
                {
                iTimer->Start(KProfileYieldInMicroSeconds);
                }
        else
                {
                iEikonEnv->AlertWin(_L("Log Complete"), KLogFileName);
                CloseLogFile();
                }
        }

void CGfxBitBlitView::CreateLogFileL()
        {
        const TDisplayMode defaultDisplayMode = iEikonEnv->DefaultDisplayMode();
        
        (void)iEikonEnv->FsSession().MkDirAll(KLogFileDir);
        User::LeaveIfError(iLogFile.Replace(iEikonEnv->FsSession(), KLogFileName,EFileWrite ));
        User::LeaveIfError( iLogFile.Write(_L8("Bitblit test results\n")) );
        TBuf8<255> out;
        out.Format(_L8("Default Display Mode %D\n\n"), static_cast<TInt>(defaultDisplayMode) );
        User::LeaveIfError(iLogFile.Write(out));
        out.Format(_L8("Width: %D, Height: %D,\n\n"), Size().iWidth, Size().iHeight);
        iLogFile.Write(out);
        
        TInt nanokernel_tick_period;
        HAL::Get(HAL::ENanoTickPeriod, nanokernel_tick_period);
        out.Format(_L8("Nano tick period: %D\n\n"), nanokernel_tick_period);
        User::LeaveIfError(iLogFile.Write(out));;
        
        iLogFile.Flush();
        }
void CGfxBitBlitView::CloseLogFile()
        {
        iLogFile.Close();
        }

void CGfxBitBlitView::ProfileBitBlitL(TInt aTestNo)
        {
        
        // create a bitmap to be used off-screen
        TDisplayMode tests[KNumberOfTests]={
                        EGray2,
                        EGray4,
                        EGray16,
                        EGray256,
                        EColor16,
                        EColor256,
                        EColor64K,
                        EColor16M,
                        ERgb,
                        EColor4K,
                        EColor16MU,
                        EColor16MA};


        TBuf8<255> out;

        CFbsBitmap* bmp = NULL;
        TRAPD(err, bmp=BitmapForDepthL(tests[aTestNo], Size()));
        if(err)
                {
                RDebug::Print(_L("BITBLIT: ERROR, %D"), err);
                _LIT8(KFormat, "BITBLIT: %D ERROR, %D\n\r");
                out.Format(KFormat, aTestNo, err);
                }
        else
                {
                CleanupStack::PushL(bmp);
                TUint32 startTick = User::NTickCount();

                ActivateGc();
                CWindowGc& gc = SystemGc();

                for(TInt l=0; l<KNumOfBlits; l++)
                        {
                        gc.BitBlt(TPoint(0,0), bmp);
                        }
                
                DeactivateGc();

                TUint32 endTick = User::NTickCount();
                TInt mils = endTick-startTick;
                RDebug::Print(_L("BITBLIT: %D, %D"), aTestNo, mils);
                _LIT8(KFormat, "BITBLIT: %D, %D\n\r");
                out.Format(KFormat, aTestNo, mils);     
                CleanupStack::PopAndDestroy(bmp);
                }
        
        User::LeaveIfError(iLogFile.Write(out));
        iLogFile.Flush();
        }
        
void CGfxBitBlitView::StopL()
        {
        iTimer->Cancel();
        }

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