sl@0: // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: #include "sgimagecollectionimpl.h"
sl@0: #include "sgimageimpl.h"
sl@0: 
sl@0: 
sl@0: TInt XSgImageCollectionImpl::New(XSgImageCollectionImpl*& aPtr, XSgDriverImpl& aDriverImpl,
sl@0:                                  const TSgImageInfo& aInfo, TInt aImageCount, TBool aIsCached,
sl@0:                                  TInt aStride, TInt aOffsetToFirstBuffer, TInt aOffsetBetweenBuffers,
sl@0:                                  TInt aMetaDataIndex, const XSgImageCollectionImpl* aCollection)
sl@0: 	{
sl@0: 	aPtr = static_cast<XSgImageCollectionImpl*>(aDriverImpl.Alloc(sizeof(XSgImageCollectionImpl)));
sl@0: 	if (!aPtr)
sl@0: 		{
sl@0: 		return KErrNoMemory;
sl@0: 		}
sl@0: 	new(aPtr) XSgImageCollectionImpl(aDriverImpl);
sl@0: 	TInt err = aPtr->Construct(aInfo, aImageCount, aIsCached, aStride, aOffsetToFirstBuffer, aOffsetBetweenBuffers, aMetaDataIndex, aCollection);
sl@0: 	if (err != KErrNone)
sl@0: 		{
sl@0: 		aPtr->Delete();
sl@0: 		aPtr = NULL;
sl@0: 		}
sl@0: 	return err;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: TInt XSgImageCollectionImpl::Construct(const TSgImageInfo& aInfo, TInt aImageCount, TBool aIsCached,
sl@0:                                        TInt aStride, TInt aOffsetToFirstBuffer, TInt aOffsetBetweenBuffers,
sl@0:                                        TInt aMetaDataIndex, const XSgImageCollectionImpl* aCollection)
sl@0: 	{
sl@0: 	TInt maxNumberOfHints;
sl@0: 	TInt err;
sl@0: 	err=iDriverImpl.GetSurfaceManagerAttrib(RSurfaceManager::EMaxNumberOfHints,maxNumberOfHints);
sl@0: 	if (err != KErrNone)
sl@0: 	    {
sl@0: 	    return err;
sl@0: 	    } 
sl@0: 			
sl@0: 	if (aInfo.iUserAttributeCount > maxNumberOfHints)
sl@0: 		{
sl@0: 		return KErrOverflow;
sl@0: 		}
sl@0: 	RSurfaceManager::THintPair* hints = new RSurfaceManager::THintPair[aInfo.iUserAttributeCount];
sl@0: 	if(!hints)
sl@0: 		{
sl@0: 		return KErrNoMemory;
sl@0: 		}
sl@0: 
sl@0: 	RSurfaceManager::TSurfaceCreationAttributesBuf reqs;
sl@0: 	reqs().iSize = aInfo.iSizeInPixels;
sl@0: 	reqs().iBuffers = aImageCount;
sl@0: 	reqs().iPixelFormat = aInfo.iPixelFormat;
sl@0: 	reqs().iStride = aStride;
sl@0: 	reqs().iOffsetToFirstBuffer = aOffsetToFirstBuffer;
sl@0: 	reqs().iAlignment = 4;
sl@0: 	reqs().iContiguous = EFalse;
sl@0: 	reqs().iCacheAttrib = aIsCached ? RSurfaceManager::ECached : RSurfaceManager::ENotCached;
sl@0: 	reqs().iMappable = ETrue;
sl@0: 	reqs().iOffsetBetweenBuffers = aOffsetBetweenBuffers;
sl@0: 	reqs().iSurfaceHints = hints;
sl@0: 	reqs().iHintCount = aInfo.iUserAttributeCount;
sl@0: 	for (TInt i = 0; i < aInfo.iUserAttributeCount; ++i)
sl@0: 		{
sl@0: 		reqs().iSurfaceHints[i].iKey = aInfo.iUserAttributes[i].iUid;
sl@0: 		reqs().iSurfaceHints[i].iValue = aInfo.iUserAttributes[i].iValue;
sl@0: 		reqs().iSurfaceHints[i].iMutable = EFalse;
sl@0: 		}	
sl@0: 	TSurfaceId surfaceId;
sl@0: 	if (!aCollection)
sl@0: 		{
sl@0: 		err = iDriverImpl.CreateSurface(reqs, surfaceId);
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		err = iDriverImpl.CreateSurface(reqs, surfaceId, aCollection->iDataChunk);
sl@0: 		}
sl@0: 	delete[] hints;
sl@0: 	hints = NULL;
sl@0: 	reqs().iSurfaceHints = NULL;
sl@0: 	if (err != KErrNone)
sl@0: 		{
sl@0: 		return err;
sl@0: 		}
sl@0: 	iSurfaceId = surfaceId;
sl@0: 	iCount = aImageCount;
sl@0: 	RChunk chunk;
sl@0: 	if (!aCollection)
sl@0: 		{
sl@0: 		err = iDriverImpl.MapSurface(surfaceId, chunk);
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		chunk = aCollection->iDataChunk;
sl@0: 		err = chunk.Duplicate(RThread()); // Get a process-wide handle
sl@0: 		}
sl@0: 	if (err != KErrNone)
sl@0: 		{
sl@0: 		return err;
sl@0: 		}
sl@0: 	iDataChunk = chunk;
sl@0: 	iMetaDataIndex = aMetaDataIndex;
sl@0: 	new(chunk.Base() + aMetaDataIndex * sizeof(TSgImageMetaData)) TSgImageMetaData(aInfo, iDriverImpl.PixelFormatTable(), aIsCached);
sl@0: 	return KErrNone;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: XSgImageCollectionImpl::~XSgImageCollectionImpl()
sl@0: 	{
sl@0: 	if (!iSurfaceId.IsNull())
sl@0: 		{
sl@0: 		iDriverImpl.CloseSurface(iSurfaceId);
sl@0: 		iDataChunk.Close();
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: 
sl@0: void XSgImageCollectionImpl::Close()
sl@0: 	{
sl@0: 	XSgDriverImpl& driverImpl = iDriverImpl;
sl@0: 	driverImpl.Wait();
sl@0: 	if (DecRefCount() == 0)
sl@0: 		{
sl@0: 		driverImpl.DeleteImageCollection(this);
sl@0: 		}
sl@0: 	driverImpl.Signal();
sl@0: 	}
sl@0: 
sl@0: 
sl@0: const TSurfaceId& XSgImageCollectionImpl::SurfaceId() const
sl@0: 	{
sl@0: 	return iSurfaceId;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: TInt XSgImageCollectionImpl::GetInfo(TSgImageInfo& aInfo) const
sl@0: 	{
sl@0: 	reinterpret_cast<TSgImageMetaData*>(iDataChunk.Base() + iMetaDataIndex * sizeof(TSgImageMetaData))->GetInfo(aInfo);
sl@0: 	for (TInt i = 0; i < aInfo.iUserAttributeCount; ++i)
sl@0: 		{
sl@0: 		RSurfaceManager::THintPair hint;
sl@0: 		hint.iKey = aInfo.iUserAttributes[i].iUid;
sl@0: 		TInt err = iDriverImpl.GetSurfaceHint(iSurfaceId, hint);
sl@0: 		if (err != KErrNone)
sl@0: 			{
sl@0: 			return err;
sl@0: 			}
sl@0: 		aInfo.iUserAttributes[i].iValue = hint.iValue;
sl@0: 		}
sl@0: 	return KErrNone;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: TInt XSgImageCollectionImpl::Count() const
sl@0: 	{
sl@0: 	return iCount;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: TInt XSgImageCollectionImpl::OpenImage(TInt aIndex, MSgDrawableAdapter*& aResult)
sl@0: 	{
sl@0: 	if (aIndex < 0 || aIndex >= iCount)
sl@0: 		{
sl@0: 		return KErrArgument;
sl@0: 		}
sl@0: 	union
sl@0: 		{
sl@0: 		TSgDrawableId id;
sl@0: 		TSgImageId_SurfaceManager id_SurfaceManager;
sl@0: 		};
sl@0: 	id_SurfaceManager.iSurfaceId = iSurfaceId;
sl@0: 	id_SurfaceManager.iBufferIndex = aIndex;
sl@0: 	id_SurfaceManager.iMetaDataIndex = iMetaDataIndex;
sl@0: 	id_SurfaceManager.iFlags = 0;
sl@0: 	iDriverImpl.Wait();
sl@0: 	TInt err = iDriverImpl.OpenImage(id, KSgDefaultOpenMode, aResult);
sl@0: 	iDriverImpl.Signal();
sl@0: 	return err;
sl@0: 	}