// Copyright (c) 2007-2009 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 "sgimageimpl.h"

#include "sgresourceinternal.h"

// TSgImageMetaData

TSgImageMetaData::TSgImageMetaData(const TSgImageInfo& aInfo, TArray<TSgPixelFormatTableEntry> aPixelFormatTable, TBool aIsCached)

	: iCreatorProcess(RProcess().Id()),

	  iSizeInPixels(aInfo.iSizeInPixels),

	  iPixelFormat(aInfo.iPixelFormat),

	  iRequestedUsage(aInfo.iUsage),

	  iPotentialUsage(0),

	  iShareable(aInfo.iShareable),

	  iCpuAccess(aInfo.iCpuAccess),

	  iScreenId(aInfo.iScreenId),

	  iIsCached(aIsCached)

	{

	TUint32 usageMask = (aInfo.iUsage & KSgUsageAllSources ? KSgUsageAllSources : 0)

	                    | (aInfo.iUsage & KSgUsageAllTargets ? KSgUsageAllTargets : 0);

	TInt n = aPixelFormatTable.Count();

	for (TInt i = 0; i < n; ++i)

		{

		const TSgPixelFormatTableEntry& entry = aPixelFormatTable[i];

		if (entry.IsMatchIgnoringUsage(aInfo))

			{

			iPotentialUsage |= entry.iUsage & usageMask;

			}

		}

	}

void TSgImageMetaData::GetInfo(TSgImageInfo& aInfo, TBool aGetPotentialUsage) const

	{

	aInfo.iSizeInPixels = iSizeInPixels;

	aInfo.iPixelFormat = iPixelFormat;

	aInfo.iUsage = aGetPotentialUsage ? iPotentialUsage : iRequestedUsage;

	aInfo.iShareable = iShareable;

	aInfo.iCpuAccess = iCpuAccess;

	aInfo.iScreenId = iScreenId;

	}

// XSgImageImplBase

XSgImageImplBase::XSgImageImplBase(const XSgImageImplBase& aImage, TUint32 aFlags)

	: XSgBase(aImage.iDriverImpl)

	{

	__ASSERT_DEBUG(iDriverImpl.IsMutexHeld(), Panic(ESgPanicMutexNotHeld));

	iId = aImage.iId;

	iId.iId[KSgImageIdFlagsIndex] = aFlags;

	aImage.iState->IncRefCount();

	iState = aImage.iState;

	}

XSgImageImplBase::~XSgImageImplBase()

	{

	__ASSERT_DEBUG(iDriverImpl.IsMutexHeld(), Panic(ESgPanicMutexNotHeld));

	if (iState && iState->DecRefCount() == 0)

		{

		Unmap();

		iState->Delete();

		}

	}

TInt XSgImageImplBase::Compare(const TSgDrawableId* aId, const XSgImageImplBase& aImage)

	{

	return Mem::Compare(reinterpret_cast<const TUint8*>(aId), sizeof(TSgDrawableId),

	                    reinterpret_cast<const TUint8*>(&aImage.Id()), sizeof(TSgDrawableId));

	}

TInt XSgImageImplBase::Compare(const XSgImageImplBase& aImage1, const XSgImageImplBase& aImage2)

	{

	return Compare(&aImage1.Id(), aImage2);

	}

TInt XSgImageImplBase::CompareIgnoringFlags(const TSgDrawableId* aId, const XSgImageImplBase& aImage)

	{

	return Mem::Compare(reinterpret_cast<const TUint8*>(aId), sizeof(TSgDrawableId) - sizeof(TUint32),

	                    reinterpret_cast<const TUint8*>(&aImage.Id()), sizeof(TSgDrawableId) - sizeof(TUint32));

	}

void XSgImageImplBase::Close()

	{

	XSgDriverImpl& driverImpl = iDriverImpl;

	driverImpl.Wait();

	if (DecRefCount() == 0)

		{

		driverImpl.DeleteImage(this);

		}

	driverImpl.Signal();

	}

const TSgDrawableId& XSgImageImplBase::Id() const

	{

	return iId;

	}

TUid XSgImageImplBase::DrawableType() const

	{

	return KSgImageTypeUid;

	}

TInt XSgImageImplBase::GetInterface(TUid aInterfaceUid, TAny*& aInterfacePtr)

	{

	if (aInterfaceUid.iUid == MSgImage_Sw::EInterfaceUid)

		{

		aInterfacePtr = static_cast<MSgImage_Sw*>(this);

		return KErrNone;

		}

	return KErrExtensionNotSupported;

	}

TInt XSgImageImplBase::GetInfo(TSgImageInfo& aInfo) const

	{

	iState->MetaData().GetInfo(aInfo, iId.iId[KSgImageIdFlagsIndex] & ESgDoNotRestrictUsage);

	return iState->GetUserAttributes(aInfo.iUserAttributes, aInfo.iUserAttributeCount);

	}

TInt XSgImageImplBase::MapReadOnly(const TAny*& aDataAddress, TInt& aDataStride)

	{

	TInt err = iState->BeginDataAccess(ESgCpuAccessReadOnly, ETrue);

	if (err != KErrNone)

		{

		return err;

		}

	aDataAddress = iState->DataAddress();

	aDataStride = iState->DataStride();

	return KErrNone;

	}

TInt XSgImageImplBase::MapWriteOnly(TAny*& aDataAddress, TInt& aDataStride)

	{

	TInt err = iState->BeginDataAccess(ESgCpuAccessWriteOnly, ETrue);

	if (err != KErrNone)

		{

		return err;

		}

	aDataAddress = iState->DataAddress();

	aDataStride = iState->DataStride();

	return KErrNone;

	}

TInt XSgImageImplBase::MapReadWrite(TAny*& aDataAddress, TInt& aDataStride)

	{

	TInt err = iState->BeginDataAccess(ESgCpuAccessReadWrite, ETrue);

	if (err != KErrNone)

		{

		return err;

		}

	aDataAddress = iState->DataAddress();

	aDataStride = iState->DataStride();

	return KErrNone;

	}

TInt XSgImageImplBase::Unmap()

	{

	return iState->EndDataAccess(ETrue);

	}

TAny* XSgImageImplBase::DataAddress() const

	{

	return iState->DataAddress();

	}

TInt XSgImageImplBase::DataStride() const

	{

	return iState->DataStride();

	}

TInt XSgImageImplBase::BeginDataAccess(TSgCpuAccess aCpuAccess)

	{

	return iState->BeginDataAccess(aCpuAccess, EFalse);

	}

TInt XSgImageImplBase::EndDataAccess()

	{

	return iState->EndDataAccess(EFalse);

	}

TInt XSgImageImplBase::SetData(const TAny* aDataAddress, TInt aDataStride)

	{

	if (aDataAddress)

		{

		TInt err = BeginDataAccess(ESgCpuAccessWriteOnly);

		if (err != KErrNone)

			{

			return err;

			}

		const TSgImageMetaData& metaData = iState->MetaData();

		const TAny* src = aDataAddress;

		TAny* trg = iState->DataAddress();

		TInt dataStride = iState->DataStride();

		TInt minDataStride = SgMinDataStride(metaData.iSizeInPixels.iWidth, metaData.iPixelFormat);

		__ASSERT_DEBUG(minDataStride > 0, Panic(ESgPanicResourceAdapterGeneral));

		for (TInt y = 0; y < metaData.iSizeInPixels.iHeight; ++y)

			{

			Mem::Copy(trg, src, minDataStride);

			src = PtrAdd(src, aDataStride);

			trg = PtrAdd(trg, dataStride);

			}

		EndDataAccess();

		}

	return KErrNone;

	}

TInt XSgImageStateBase::BeginDataAccess(TSgCpuAccess aCpuAccess, TBool aIsUserAccess)

	{

	if (aCpuAccess == ESgCpuAccessNone)

		{

		return KErrArgument;

		}

	const TSgImageMetaData& metaData = MetaData();

	if (aIsUserAccess && (~metaData.iCpuAccess & aCpuAccess))

		{

		return KErrAccessDenied;

		}

	if (aIsUserAccess && metaData.iCreatorProcess != RProcess().Id())

		{

		return KErrPermissionDenied;

		}

	iDriverImpl.Wait();

	if (iCpuAccess != ESgCpuAccessNone)

		{

		iDriverImpl.Signal();

		return KErrInUse;

		}

	iCpuAccess = aCpuAccess;

	iIsUserAccess = aIsUserAccess;

	iDriverImpl.Signal();

	return KErrNone;

	}

TInt XSgImageStateBase::EndDataAccess(TBool aIsUserAccess)

	{

	iDriverImpl.Wait();

	if (iCpuAccess == ESgCpuAccessNone || iIsUserAccess != aIsUserAccess)

		{

		iDriverImpl.Signal();

		return KErrGeneral;

		}

	iCpuAccess = ESgCpuAccessNone;

	iIsUserAccess = EFalse;

	iDriverImpl.Signal();

	return KErrNone;

	}

#ifndef SYMBIAN_GRAPHICS_USE_GPU

// XSgImageImpl_SwLocal

TInt XSgImageImpl_SwLocal::New(XSgImageImpl_SwLocal*& aPtr, XSgDriverImpl& aDriverImpl, const TSgDrawableId& aId,

	                           const TSgImageInfo& aInfo, const TAny* aDataAddress, TInt aDataStride)

	{

	aPtr = static_cast<XSgImageImpl_SwLocal*>(aDriverImpl.Alloc(sizeof(XSgImageImpl_SwLocal)));

	if (!aPtr)

		{

		return KErrNoMemory;

		}

	new(aPtr) XSgImageImpl_SwLocal(aDriverImpl, aId);

	TInt err = aPtr->Construct(aInfo, aDataAddress, aDataStride);

	if (err != KErrNone)

		{

		aPtr->Delete();

		aPtr = NULL;

		}

	return err;

	}

TInt XSgImageImpl_SwLocal::New(XSgImageImpl_SwLocal*& aPtr, const XSgImageImpl_SwLocal& aImage, TUint32 aFlags)

	{

	aPtr = static_cast<XSgImageImpl_SwLocal*>(aImage.iDriverImpl.Alloc(sizeof(XSgImageImpl_SwLocal)));

	if (!aPtr)

		{

		return KErrNoMemory;

		}

	new(aPtr) XSgImageImpl_SwLocal(aImage, aFlags);

	return KErrNone;

	}

TInt XSgImageImpl_SwLocal::Construct(const TSgImageInfo& aInfo, const TAny* aDataAddress, TInt aDataStride)

	{

	XSgImageState_SwLocal* state;

	TInt err = XSgImageState_SwLocal::New(state, iDriverImpl, aInfo);

	if (err != KErrNone)

		{

		return err;

		}

	state->IncRefCount();

	iState = state;

	return SetData(aDataAddress, aDataStride);

	}

// XSgImageState_SwLocal

TInt XSgImageState_SwLocal::New(XSgImageState_SwLocal*& aPtr, XSgDriverImpl& aDriverImpl, const TSgImageInfo& aInfo)

	{

	TInt dataStride = Align4(SgMinDataStride(aInfo.iSizeInPixels.iWidth, aInfo.iPixelFormat));

	TInt size = _FOFF(XSgImageState_SwLocal, iUserAttributes) + aInfo.iUserAttributeCount * sizeof(TSgUserAttribute) + dataStride * aInfo.iSizeInPixels.iHeight;

	aPtr = static_cast<XSgImageState_SwLocal*>(aDriverImpl.Alloc(size));

	if (!aPtr)

		{

		return KErrNoMemory;

		}

	new(aPtr) XSgImageState_SwLocal(aDriverImpl, aInfo, dataStride);

	return KErrNone;

	}

XSgImageState_SwLocal::XSgImageState_SwLocal(XSgDriverImpl& aDriverImpl, const TSgImageInfo& aInfo, TInt aDataStride)

	: XSgImageStateBase(aDriverImpl, aDataStride), iMetaData(aInfo, aDriverImpl.PixelFormatTable())

	{

	iUserAttributeCount = aInfo.iUserAttributeCount;

	Mem::Copy(iUserAttributes, aInfo.iUserAttributes, aInfo.iUserAttributeCount * sizeof(TSgUserAttribute));

	}

const TSgImageMetaData& XSgImageState_SwLocal::MetaData() const

	{

	return iMetaData;

	}

TInt XSgImageState_SwLocal::GetUserAttributes(TSgUserAttribute* aUserAttributes, TInt aUserAttributeCount) const

	{

	for (TInt i = 0; i < aUserAttributeCount; ++i)

		{

		TBool found = EFalse;

		for (TInt j = 0; j < iUserAttributeCount; ++j)

			{

			if (aUserAttributes[i].iUid == iUserAttributes[j].iUid)

				{

				aUserAttributes[i].iValue = iUserAttributes[j].iValue;

				found = ETrue;

				break;

				}

			}

		if (!found)

			{

			return KErrNotFound;

			}

		}

	return KErrNone;

	}

TAny* XSgImageState_SwLocal::DataAddress() const

	{

	//__ASSERT_DEBUG(iCpuAccess != ESgCpuAccessNone, ::Panic(ESgPanicNoCpuAccess));

	return (TAny*)PtrAdd(iUserAttributes, iUserAttributeCount * sizeof(TSgUserAttribute));

	}

#endif

// XSgImageImpl_SurfaceManager

TInt XSgImageImpl_SurfaceManager::New(XSgImageImpl_SurfaceManager*& aPtr, XSgDriverImpl& aDriverImpl,

                                      const TSgImageInfo& aInfo, TBool aIsCached, const TAny* aDataAddress, TInt aDataStride)

	{

	aPtr = static_cast<XSgImageImpl_SurfaceManager*>(aDriverImpl.Alloc(sizeof(XSgImageImpl_SurfaceManager)));

	if (!aPtr)

		{

		return KErrNoMemory;

		}

	new(aPtr) XSgImageImpl_SurfaceManager(aDriverImpl);

	TInt err = aPtr->Construct(aInfo, aIsCached, aDataAddress, aDataStride);

	if (err != KErrNone)

		{

		aPtr->Delete();

		aPtr = NULL;

		}

	return err;

	}

TInt XSgImageImpl_SurfaceManager::New(XSgImageImpl_SurfaceManager*& aPtr, XSgDriverImpl& aDriverImpl, const TSgDrawableId& aId)

	{

	aPtr = static_cast<XSgImageImpl_SurfaceManager*>(aDriverImpl.Alloc(sizeof(XSgImageImpl_SurfaceManager)));

	if (!aPtr)

		{

		return KErrNoMemory;

		}

	new(aPtr) XSgImageImpl_SurfaceManager(aDriverImpl, aId);

	TInt err = aPtr->Construct(aId);

	if (err != KErrNone)

		{

		aPtr->Delete();

		aPtr = NULL;

		}

	return err;

	}

TInt XSgImageImpl_SurfaceManager::New(XSgImageImpl_SurfaceManager*& aPtr, const XSgImageImpl_SurfaceManager& aImage, TUint32 aFlags)

	{

	aPtr = static_cast<XSgImageImpl_SurfaceManager*>(aImage.iDriverImpl.Alloc(sizeof(XSgImageImpl_SurfaceManager)));

	if (!aPtr)

		{

		return KErrNoMemory;

		}

	new(aPtr) XSgImageImpl_SurfaceManager(aImage, aFlags);

	return KErrNone;

	}

TInt XSgImageImpl_SurfaceManager::Construct(const TSgImageInfo& aInfo, TBool aIsCached, const TAny* aDataAddress, TInt aDataStride)

	{

	XSgImageState_SurfaceManager* state;

	TInt err = XSgImageState_SurfaceManager::New(state, iDriverImpl, aInfo, aIsCached);

	if (err != KErrNone)

		{

		return err;

		}

	Mem::Copy(&iId, &state->SurfaceId(), sizeof(TSurfaceId));

	state->IncRefCount();

	iState = state;

	return SetData(aDataAddress, aDataStride);

	}

TInt XSgImageImpl_SurfaceManager::Construct(const TSgDrawableId& aId)

	{

	XSgImageState_SurfaceManager* state;

	TInt err = XSgImageState_SurfaceManager::New(state, iDriverImpl, aId);

	if (err != KErrNone)

		{

		return err;

		}

	state->IncRefCount();

	iState = state;

	return KErrNone;

	}

TInt XSgImageImpl_SurfaceManager::GetInterface(TUid aInterfaceUid, TAny*& aInterfacePtr)

	{

	if (aInterfaceUid.iUid == MSgImage_Chunk::EInterfaceUid)

		{

		aInterfacePtr = static_cast<MSgImage_Chunk*>(this);

		return KErrNone;

		}

	return XSgImageImplBase::GetInterface(aInterfaceUid, aInterfacePtr);

	}

const RChunk& XSgImageImpl_SurfaceManager::DataChunk() const

	{

	return static_cast<XSgImageState_SurfaceManager*>(iState)->DataChunk();

	}

TInt XSgImageImpl_SurfaceManager::DataOffset() const

	{

	return static_cast<XSgImageState_SurfaceManager*>(iState)->DataOffset();

	}

TInt XSgImageImpl_SurfaceManager::DataStride() const

	{

	return iState->DataStride();

	}

// XSgImageState_SurfaceManager

TInt XSgImageState_SurfaceManager::New(XSgImageState_SurfaceManager*& aPtr, XSgDriverImpl& aDriverImpl, const TSgImageInfo& aInfo, TBool aIsCached)

	{

	aPtr = static_cast<XSgImageState_SurfaceManager*>(aDriverImpl.Alloc(sizeof(XSgImageState_SurfaceManager)));

	if (!aPtr)

		{

		return KErrNoMemory;

		}

	new(aPtr) XSgImageState_SurfaceManager(aDriverImpl);

	TInt err = aPtr->Construct(aInfo, aIsCached);

	if (err != KErrNone)

		{

		aPtr->Delete();

		aPtr = NULL;

		}

	return err;

	}

TInt XSgImageState_SurfaceManager::New(XSgImageState_SurfaceManager*& aPtr, XSgDriverImpl& aDriverImpl, const TSgDrawableId& aId)

	{

	aPtr = static_cast<XSgImageState_SurfaceManager*>(aDriverImpl.Alloc(sizeof(XSgImageState_SurfaceManager)));

	if (!aPtr)

		{

		return KErrNoMemory;