--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/imaging/imagingunittest/testcodec/src/TestAsyncConvert.cpp	Wed Aug 25 12:29:52 2010 +0300
@@ -0,0 +1,422 @@
+// Copyright (c) 2003-2009 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 <barsc.h>
+#include <barsread.h>
+#include <bautils.h>
+#include <imageconversion.h>
+#include <101F7BF5_extra.rsg>
+
+#include "TestAsyncCodec.h"
+#include "TestAsyncConvert.h"
+
+#include "TestPanic.h"
+#include "TestDecs.h"
+#include "TestUids.hrh"
+
+//_LIT(KTestPanicCategory, "TestAsyncConvertPlugin");	// EABI warning removal
+
+const TInt KDummyFileSize = 100;
+const TInt KDummyHeaderSize = 10;
+const TInt KDummyDataSize = KDummyFileSize - KDummyHeaderSize;
+
+
+//********************************************
+// CTestAsyncDecoder.
+//********************************************
+CTestAsyncDecoder* CTestAsyncDecoder::NewL()
+	{
+	CTestAsyncDecoder* self = new(ELeave) CTestAsyncDecoder();
+	CleanupStack::PushL(self);
+	self->ConstructL();
+	CleanupStack::Pop(self);
+	return self;
+	}
+
+CTestAsyncDecoder::CTestAsyncDecoder()
+	{
+	}
+
+void CTestAsyncDecoder::ConstructL()
+	{
+	}
+
+CTestAsyncDecoder::~CTestAsyncDecoder()
+	{
+	delete iScheduler;
+	
+	CImageDecoderPlugin::Cleanup();
+	}
+
+void CTestAsyncDecoder::ImageType(TInt aFrameNumber, TUid& aImageType, TUid& aImageSubType) const
+	{
+	__ASSERT_ALWAYS(aFrameNumber == 0, Panic(EFrameNumberOutOfRange));
+	aImageType = KImageTypeTestUid;
+	aImageSubType = KImageSubTypeTestUid;
+	}
+
+void CTestAsyncDecoder::ScanDataL()
+	{
+
+	SetDataLength(10);
+
+	
+	if (!iReadHeaders)
+		{
+		TPtrC8 bufferDes;
+		ReadDataL(0, bufferDes, (KDummyHeaderSize));
+		if (bufferDes.Length() < KDummyHeaderSize)
+			User::Leave(KErrUnderflow);
+
+		iReadHeaders = ETrue;
+		SetDataLength(KDummyDataSize);
+
+
+		iDecodeIterations = 0;
+
+		// create the codec
+		delete iImageReadCodec;
+		iImageReadCodec = NULL;
+		iImageReadCodec = CTestAsyncReadCodec::NewL(*this);
+		SetImageReadCodec(iImageReadCodec);
+	
+		// create the async decoder
+		delete iScheduler;
+		iScheduler = NULL;
+		iScheduler = new (ELeave) CAsyncScheduler(*this);
+
+		// create a dummy TFrameInfo
+		TFrameInfo imageInfo;
+		imageInfo = ImageInfo();
+		imageInfo.iFrameSizeInTwips.iWidth = 0;
+		imageInfo.iFrameSizeInTwips.iHeight = 0;
+		imageInfo.iFrameCoordsInPixels.SetRect(TPoint(0, 0), TPoint(256, 256));
+		imageInfo.iOverallSizeInPixels = TSize(256, 256);
+		imageInfo.iBitsPerPixel = 24;
+		imageInfo.iDelay = 0;
+		imageInfo.iFlags = TFrameInfo::ECanDither;
+		imageInfo.iFrameDisplayMode = EColor16M;
+		SetImageInfo(imageInfo);
+
+		SetStartPosition(KDummyHeaderSize);
+		
+		ReadFrameHeadersL();
+		}
+
+	}
+
+CFrameInfoStrings* CTestAsyncDecoder::FrameInfoStringsL(RFs& aFs, TInt aFrameNumber)
+	{
+	if (aFrameNumber!=0)
+		User::Leave(KErrArgument);
+
+	const TUid testCodecDllUid = {KTestDecoderDllUidValue};
+
+	RResourceFile resourceFile;
+	OpenExtraResourceFileLC(aFs,testCodecDllUid,resourceFile);
+
+	HBufC8* resourceInfo = resourceFile.AllocReadLC(THEDECODERINFO);
+	TResourceReader resourceReader;
+	resourceReader.SetBuffer(resourceInfo);
+
+	TBuf<128> info;
+	TBuf<128> templte;
+
+	CFrameInfoStrings* frameInfoStrings = CFrameInfoStrings::NewLC();
+
+	info = resourceReader.ReadTPtrC();
+	frameInfoStrings->SetDecoderL(info);
+
+	info = resourceReader.ReadTPtrC();
+	frameInfoStrings->SetFormatL(info);
+
+	templte = resourceReader.ReadTPtrC();
+	const TFrameInfo& frameInfo = FrameInfo(aFrameNumber);
+	const TSize& size = frameInfo.iOverallSizeInPixels;
+	info.Format(templte, size.iWidth, size.iHeight);
+	frameInfoStrings->SetDimensionsL(info);
+
+	templte = resourceReader.ReadTPtrC();
+	iMaxValue = 10;
+	info.Format(templte, iMaxValue);
+	frameInfoStrings->SetDepthL(info);
+
+	// leave details blank
+
+	CleanupStack::Pop(frameInfoStrings); 
+	CleanupStack::PopAndDestroy(2); // resourceInfo + resourceFile
+	return frameInfoStrings;
+	}
+
+void CTestAsyncDecoder::DoConvert()
+	{
+	const TInt KDecodeIterations = 10;
+
+	TRAPD(errCode, PrepareForProcessFrameL());
+
+	if (errCode!=KErrNone)
+		{
+		RequestComplete(errCode);
+		return;
+		}
+
+	if (iError != KErrNone)
+		{
+		RequestComplete(iError);
+		}
+	// need to get more data from client app ?
+	else if (SourceData().Length() < KDummyDataSize)
+		{
+		RequestComplete(KErrUnderflow);
+		}
+	else if (iDecodeIterations++ > KDecodeIterations)
+		{
+		RequestComplete(iError);
+		}
+	else 
+		{
+		iDecodeState = EDecodeInit;
+		iScheduler->Start();
+		SetSelfPending();
+		}
+	}
+
+TInt CTestAsyncDecoder::NumberOfImageComments() const
+	{
+	return 1;
+	}
+
+HBufC* CTestAsyncDecoder::ImageCommentL(TInt /*aCommentNumber*/) const
+	{
+	HBufC* imageComment = HBufC::NewL(20);
+	TPtr ptr(imageComment->Des());
+	ptr.Copy(_L("Test Image Comment 1"));
+	return imageComment;
+	}
+
+TInt CTestAsyncDecoder::NumberOfFrameComments(TInt /*aFrameNumber*/) const
+	{
+	return 1;
+	}
+
+HBufC* CTestAsyncDecoder::FrameCommentL(TInt /*aFrameNumber*/, TInt /*aCommentNumber*/) const
+	{
+	HBufC* frameComment = HBufC::NewL(20);
+	TPtr ptr(frameComment->Des());
+	ptr.Copy(_L("Test Frame Comment 1"));
+	return frameComment;
+	}
+
+void CTestAsyncDecoder::ProcessFrameComplete(TInt aError)
+	{
+	iError = aError;
+	iDecodeState = EDecodeFinished;
+	iScheduler->Start();
+	}
+
+void CTestAsyncDecoder::MasoProcessL(TInt aError)
+	{
+	iError = aError;
+
+	if (aError != KErrNone)
+		{
+		SelfComplete(iError);
+		return;
+		}
+
+	switch(iDecodeState)
+		{
+		case EDecodeInit:
+			iDecodeState = EDecodeInProgress;
+			iScheduler->Start();
+			break;
+
+		case EDecodeInProgress:
+			TRAP(iError, iImageReadCodec->ProcessFrameL(SourceData()));
+			if (iError != KErrNone)
+				{
+				SelfComplete(iError);
+				break;
+				}
+			// now wait for async callback to ProcessFrameComplete...
+			break;
+
+		case EDecodeFinished:
+			SelfComplete(iError);
+			break;
+		}
+
+	}
+
+void CTestAsyncDecoder::Cleanup()
+	{
+	// cancel the state machine
+	if (iScheduler)
+		iScheduler->Cancel();
+	
+	CImageDecoderPlugin::Cleanup();
+	}
+
+
+//********************************************
+// CTestAsyncEncoder.
+//********************************************
+CTestAsyncEncoder* CTestAsyncEncoder::NewL()
+	{
+	CTestAsyncEncoder* self = new(ELeave) CTestAsyncEncoder();
+	CleanupStack::PushL(self);
+	self->ConstructL();
+	CleanupStack::Pop(self);
+	return self;
+	}
+
+CTestAsyncEncoder::CTestAsyncEncoder()
+	{
+	}
+
+void CTestAsyncEncoder::ConstructL()
+	{
+	}
+
+CTestAsyncEncoder::~CTestAsyncEncoder()
+	{
+	delete iScheduler;
+	
+	CImageEncoderPlugin::Cleanup();
+	}
+
+void CTestAsyncEncoder::DoConvert()
+	{
+	const TInt KEncodeIterations = 10;
+
+/*
+	TRAPD(errCode, PrepareForProcessFrameL());
+
+	if (errCode!=KErrNone)
+		{
+		RequestComplete(errCode);
+		return;
+		}
+*/
+	if (iError != KErrNone)
+		{
+		RequestComplete(iError);
+		}
+	
+	if (iEncodeIterations++ > KEncodeIterations)
+		{
+		RequestComplete(iError);
+		}
+	else 
+		{
+		iEncodeState = EEncodeInit;
+		iScheduler->Start();
+		SetSelfPending();
+		}
+	}
+
+void CTestAsyncEncoder::PrepareEncoderL(const CFrameImageData* /*aFrameImageData*/)
+	{
+	// create the codec
+	delete iImageWriteCodec;
+	iImageWriteCodec = NULL;
+	iImageWriteCodec = CTestAsyncWriteCodec::NewL(*this);
+	SetImageWriteCodec(iImageWriteCodec);
+
+	// create the scheduler
+	delete iScheduler;
+	iScheduler = NULL;
+	iScheduler = new (ELeave) CAsyncScheduler(*this);
+
+	}
+
+void CTestAsyncEncoder::UpdateHeaderL()
+	{
+	}
+
+void CTestAsyncEncoder::ProcessFrameComplete(TInt aError)
+	{
+	iError = aError;
+	iEncodeState = EEncodeFinished;
+	iScheduler->Start();
+	}
+
+void CTestAsyncEncoder::MasoProcessL(TInt aError)
+	{
+	iError = aError;
+
+	if (aError != KErrNone)
+		{
+		SelfComplete(iError);
+		return;
+		}
+
+	switch(iEncodeState)
+		{
+		case EEncodeInit:
+			iEncodeState = EEncodeInProgress;
+			iScheduler->Start();
+			break;
+
+		case EEncodeInProgress:
+			TRAP(iError, iImageWriteCodec->ProcessFrameL(DestinationData()));
+			if (iError != KErrNone)
+				{
+				SelfComplete(iError);
+				break;
+				}
+			// now wait for async callback to ProcessFrameComplete...
+			break;
+
+		case EEncodeFinished:
+			SelfComplete(iError);
+			break;
+		}
+
+	}
+
+void CTestAsyncEncoder::Cleanup()
+	{
+	// cancel the state machine
+	if (iScheduler)
+		iScheduler->Cancel();
+	
+	CImageEncoderPlugin::Cleanup();
+	}
+
+
+// CAsyncScheduler
+CAsyncScheduler::CAsyncScheduler(MAsyncSchedulerObserver& aSchedulerObserver) : 
+	CActive(CActive::EPriorityIdle), iSchedulerObserver(aSchedulerObserver)
+	{
+	CActiveScheduler::Add(this); 
+	}
+
+
+void CAsyncScheduler::Start()
+	{ 
+	SetActive();
+	TRequestStatus* status = &iStatus; 
+	User::RequestComplete(status, KErrNone);
+	}
+
+void CAsyncScheduler::RunL()
+	{
+	TInt error = iStatus.Int();
+
+	iSchedulerObserver.MasoProcessL(error);
+	}
+
+