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// Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// Graphics Resource - logical channel implementation
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//
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#include <kernel/kern_priv.h>
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#include <sgresource/sgextension.h>
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#include "sgdeviceimpl.h"
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TInt DSgChannel::DoCreate(TInt /*aUnit*/, const TDesC8* /*aInfo*/, const TVersion& aVersion)
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{
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TVersion version = SgExtension::Version();
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if (aVersion.iMajor != version.iMajor || aVersion.iMinor > version.iMinor)
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{
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return KErrNotSupported;
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}
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return Kern::MutexCreate(iMutex, KNullDesC, KMutexOrdGeneral7);
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}
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DSgChannel::~DSgChannel()
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{
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if (iMutex)
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{
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iMutex->Close(NULL);
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}
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for (TInt i = 0; i < iResources.Count(); ++i)
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{
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iResources[i].iResource->Close();
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}
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iResources.Close();
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}
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TInt DSgChannel::Request(TInt aFunction, TAny* a1, TAny* a2)
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{
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switch (aFunction)
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{
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case RSgDevice::EControlCreateResource:
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{
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RSgDevice::TCreateResourceArgs args;
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kumemget32(&args, a1, sizeof(RSgDevice::TCreateResourceArgs));
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TInt metaDataSize, maxMetaDataSize;
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Kern::KUDesInfo(*args.iMetaData, metaDataSize, maxMetaDataSize);
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__ASSERT_ALWAYS(metaDataSize <= KSgMaxMetaDataSize, Panic(ESgPanicMetaDataSizeTooBig));
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__ASSERT_ALWAYS(args.iDataSize >= 0, Panic(ESgPanicDataSizeNegative));
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TBuf8<KSgMaxMetaDataSize> metaData;
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Kern::KUDesGet(metaData, *args.iMetaData);
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TUint64 id;
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TInt err = CreateResource(args.iAttributes, metaData, args.iDataSize, id);
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kumemput32(a2, &id, sizeof(TUint64));
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return err;
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}
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case RSgDevice::EControlOpenResource:
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{
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TUint64 id;
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kumemget32(&id, a1, sizeof(TUint64));
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return OpenResource(id);
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}
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case RSgDevice::EControlCloseResource:
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{
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TUint64 id;
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kumemget32(&id, a1, sizeof(TUint64));
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return CloseResource(id);
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}
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case RSgDevice::EControlResourceAttributes:
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{
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TUint64 id;
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kumemget32(&id, a1, sizeof(TUint64));
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return static_cast<TInt>(ResourceAttributes(id));
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}
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case RSgDevice::EControlGetResourceMetaData:
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{
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TUint64 id;
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kumemget32(&id, a1, sizeof(TUint64));
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TBuf8<KSgMaxMetaDataSize> metaData;
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TInt err = GetResourceMetaData(id, metaData);
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if (err == KErrNone)
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{
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Kern::InfoCopy(*static_cast<TDes8*>(a2), metaData);
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}
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return err;
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}
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case RSgDevice::EControlResourceDataAddress:
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{
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TUint64 id;
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kumemget32(&id, a1, sizeof(TUint64));
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return reinterpret_cast<TInt>(ResourceDataAddress(id));
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}
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case RSgDevice::EControlResourceDataSize:
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{
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TUint64 id;
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kumemget32(&id, a1, sizeof(TUint64));
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return ResourceDataSize(id);
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}
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case RSgDevice::EControlGlobalResourceCount:
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return GlobalResourceCount();
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case RSgDevice::EControlLocalGraphicsMemoryUsed:
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return LocalGraphicsMemoryUsed();
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case RSgDevice::EControlGlobalGraphicsMemoryUsed:
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return GlobalGraphicsMemoryUsed();
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default:
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return KErrNotSupported;
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}
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}
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TInt DSgChannel::CreateResource(TUint32 aAttribs, const TDesC8& aMetaData, TInt aDataSize, TUint64& aId)
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{
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aId = 0;
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NKern::ThreadEnterCS();
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DSgResource* resource;
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TInt err = SgExtension::CreateResource(aAttribs, aMetaData, aDataSize, resource);
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if (err != KErrNone)
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{
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NKern::ThreadLeaveCS();
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return err;
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}
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TInt handle = Kern::MakeHandleAndOpen(NULL, resource->DataChunk(), EOwnerProcess);
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if (handle < 0)
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{
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resource->Close();
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NKern::ThreadLeaveCS();
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return handle;
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}
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Kern::MutexWait(*iMutex);
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err = iResources.InsertInOrder(TResourceListItem(resource, handle), Compare);
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Kern::MutexSignal(*iMutex);
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if (err != KErrNone)
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{
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(void)Kern::CloseHandle(NULL, handle);
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resource->Close();
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NKern::ThreadLeaveCS();
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return err;
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}
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NKern::ThreadLeaveCS();
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aId = resource->Id();
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return KErrNone;
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}
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TInt DSgChannel::OpenResource(TUint64 aId)
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{
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if (aId == 0)
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{
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return KErrArgument;
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}
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NKern::ThreadEnterCS();
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Kern::MutexWait(*iMutex);
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TInt i = iResources.FindInOrder(aId, Compare);
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if (i >= 0)
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{
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Kern::MutexSignal(*iMutex);
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NKern::ThreadLeaveCS();
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return KErrAlreadyExists;
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}
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DSgResource* resource;
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TInt err = SgExtension::FindAndOpenResource(aId, resource);
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if (err != KErrNone)
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{
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Kern::MutexSignal(*iMutex);
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NKern::ThreadLeaveCS();
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return err;
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}
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TInt handle = Kern::MakeHandleAndOpen(NULL, resource->DataChunk(), EOwnerProcess);
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if (handle < 0)
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{
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resource->Close();
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Kern::MutexSignal(*iMutex);
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NKern::ThreadLeaveCS();
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return handle;
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}
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err = iResources.InsertInOrder(TResourceListItem(resource, handle), Compare);
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if (err != KErrNone)
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{
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(void)Kern::CloseHandle(NULL, handle);
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resource->Close();
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Kern::MutexSignal(*iMutex);
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NKern::ThreadLeaveCS();
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return err;
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}
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Kern::MutexSignal(*iMutex);
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NKern::ThreadLeaveCS();
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return KErrNone;
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}
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TInt DSgChannel::CloseResource(TUint64 aId)
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{
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if (aId == 0)
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{
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return KErrArgument;
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}
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TInt err = KErrNotFound;
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NKern::ThreadEnterCS();
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Kern::MutexWait(*iMutex);
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TInt i = iResources.FindInOrder(aId, Compare);
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if (i >= 0)
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{
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(void)Kern::CloseHandle(NULL, iResources[i].iChunkHandle);
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iResources[i].iResource->Close();
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iResources.Remove(i);
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err = KErrNone;
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}
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Kern::MutexSignal(*iMutex);
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NKern::ThreadLeaveCS();
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return err;
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}
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TUint32 DSgChannel::ResourceAttributes(TUint64 aId) const
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{
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if (aId == 0)
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{
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return 0;
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}
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TUint32 attribs = 0;
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NKern::ThreadEnterCS();
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Kern::MutexWait(*iMutex);
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TInt i = iResources.FindInOrder(aId, Compare);
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if (i >= 0)
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{
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attribs = iResources[i].iResource->Attributes();
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}
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Kern::MutexSignal(*iMutex);
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NKern::ThreadLeaveCS();
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return attribs;
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}
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TInt DSgChannel::GetResourceMetaData(TUint64 aId, TDes8& aMetaData) const
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{
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if (aId == 0)
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{
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return KErrArgument;
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}
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TInt err = KErrNotFound;
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NKern::ThreadEnterCS();
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Kern::MutexWait(*iMutex);
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TInt i = iResources.FindInOrder(aId, Compare);
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if (i >= 0)
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{
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err = iResources[i].iResource->GetMetaData(aMetaData);
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}
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Kern::MutexSignal(*iMutex);
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NKern::ThreadLeaveCS();
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return err;
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}
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TAny* DSgChannel::ResourceDataAddress(TUint64 aId) const
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{
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if (aId == 0)
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{
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return NULL;
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}
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TAny* addr = NULL;
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NKern::ThreadEnterCS();
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Kern::MutexWait(*iMutex);
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TInt i = iResources.FindInOrder(aId, Compare);
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if (i >= 0)
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{
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addr = Kern::ChunkUserBase(iResources[i].iResource->DataChunk(), &Kern::CurrentThread());
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}
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Kern::MutexSignal(*iMutex);
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NKern::ThreadLeaveCS();
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return addr;
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}
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TInt DSgChannel::ResourceDataSize(TUint64 aId) const
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{
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if (aId == 0)
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{
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return KErrArgument;
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}
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TInt ret = KErrNotFound;
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NKern::ThreadEnterCS();
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Kern::MutexWait(*iMutex);
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TInt i = iResources.FindInOrder(aId, Compare);
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if (i >= 0)
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{
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ret = iResources[i].iResource->DataSize();
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}
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Kern::MutexSignal(*iMutex);
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NKern::ThreadLeaveCS();
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return ret;
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}
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TInt DSgChannel::GlobalResourceCount() const
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{
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NKern::ThreadEnterCS();
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TInt ret = SgExtension::GlobalResourceCount();
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NKern::ThreadLeaveCS();
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return ret;
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}
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TInt DSgChannel::LocalGraphicsMemoryUsed() const
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{
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|
302 |
TInt ret = 0;
|
|
sl@0
|
303 |
NKern::ThreadEnterCS();
|
|
sl@0
|
304 |
Kern::MutexWait(*iMutex);
|
|
sl@0
|
305 |
TInt n = iResources.Count();
|
|
sl@0
|
306 |
for (TInt i = 0; i < n; ++i)
|
|
sl@0
|
307 |
{
|
|
sl@0
|
308 |
ret += iResources[i].iResource->DataChunk()->Size();
|
|
sl@0
|
309 |
}
|
|
sl@0
|
310 |
Kern::MutexSignal(*iMutex);
|
|
sl@0
|
311 |
NKern::ThreadLeaveCS();
|
|
sl@0
|
312 |
return ret;
|
|
sl@0
|
313 |
}
|
|
sl@0
|
314 |
|
|
sl@0
|
315 |
TInt DSgChannel::GlobalGraphicsMemoryUsed() const
|
|
sl@0
|
316 |
{
|
|
sl@0
|
317 |
NKern::ThreadEnterCS();
|
|
sl@0
|
318 |
TInt ret = SgExtension::GlobalGraphicsMemoryUsed();
|
|
sl@0
|
319 |
NKern::ThreadLeaveCS();
|
|
sl@0
|
320 |
return ret;
|
|
sl@0
|
321 |
}
|
|
sl@0
|
322 |
|
|
sl@0
|
323 |
DSgChannel::TResourceListItem::TResourceListItem(DSgResource* aResource, TInt aChunkHandle)
|
|
sl@0
|
324 |
: iResource(aResource), iChunkHandle(aChunkHandle)
|
|
sl@0
|
325 |
{
|
|
sl@0
|
326 |
}
|
|
sl@0
|
327 |
|
|
sl@0
|
328 |
TInt DSgChannel::Compare(const TUint64* aId, const TResourceListItem& aResourceListItem)
|
|
sl@0
|
329 |
{
|
|
sl@0
|
330 |
return DSgResource::Compare(aId, *aResourceListItem.iResource);
|
|
sl@0
|
331 |
}
|
|
sl@0
|
332 |
|
|
sl@0
|
333 |
TInt DSgChannel::Compare(const TResourceListItem& aResourceListItem1, const TResourceListItem& aResourceListItem2)
|
|
sl@0
|
334 |
{
|
|
sl@0
|
335 |
return DSgResource::Compare(*aResourceListItem1.iResource, *aResourceListItem2.iResource);
|
|
sl@0
|
336 |
}
|