// Copyright (c) 2008-2009 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: Owns, hides, and provides an interface to the OpenWFC compositor for use by the final (display) render stage.
#include "openwfcwrapper.h"
#include "panic.h"
#include "utils.h"
#include <WF/wfc.h>
#include "elementwrapper.h"
#include <graphics/compositionsurfaceupdate.h>
#include <graphics/symbianstream.h>
#include "openwfcpanics.h"
#include "openwfcjobmanager.h"
#include <graphics/eglsynchelper.h>
#define KRgbaBlack 0x000000FF
void Panic(TOpenWfcPanic aPanic)
{
_LIT(KPanic, "OpenWFC");
User::Panic(KPanic, aPanic);
}
class COpenWfcWrapper::OffScreenComposeGuard
{
public:
OffScreenComposeGuard(TRequestStatus*& aRequestStatus);
void SetOffScreenNativeStream(WFCNativeStreamType aNativeStream);
void SetTargetNativeStream(WFCNativeStreamType aNativeStream);
void SetSync(EGLSyncKHR aSync, EGLDisplay aDpy);
void SetDeviceAndContext(WFCDevice aDevice, WFCContext aContext);
void Close();
void LogRequestStatusError(TInt aRequestStatusError);
private:
TRequestStatus*& iRequestStatus;
EGLSyncKHR iSync;
EGLDisplay iEGLDisplay;
WFCDevice iDevice;
WFCContext iContext;
TInt iRequestStatusError;
};
COpenWfcWrapper::OffScreenComposeGuard::OffScreenComposeGuard(TRequestStatus*& aRequestStatus):
iRequestStatus(aRequestStatus),
iSync(EGL_NO_SYNC_KHR),
iDevice(WFC_INVALID_HANDLE),
iContext(WFC_INVALID_HANDLE),
iRequestStatusError(KErrNone)
{}
void COpenWfcWrapper::OffScreenComposeGuard::SetSync(EGLSyncKHR aSync, EGLDisplay aDpy)
{
iSync = aSync;
iEGLDisplay = aDpy;
}
void COpenWfcWrapper::OffScreenComposeGuard::SetDeviceAndContext(WFCDevice aDevice, WFCContext aContext)
{
iContext = aContext;
iDevice = aDevice;
}
void COpenWfcWrapper::OffScreenComposeGuard::LogRequestStatusError(TInt aRequestStatusError)
{
iRequestStatusError=aRequestStatusError;
}
void COpenWfcWrapper::OffScreenComposeGuard::Close()
{
if (iContext != WFC_INVALID_HANDLE)
{
DestroyAllContextElements(iDevice, iContext);
wfcDestroyContext(iDevice, iContext);
}
if (iSync != EGL_NO_SYNC_KHR)
{
eglDestroySyncKHR(iEGLDisplay, iSync);
}
if (iRequestStatus)
{
User::RequestComplete(iRequestStatus, iRequestStatusError);
}
}
TEMPLATE_SPECIALIZATION class RHashTableBase::Defaults<TSurfaceId, RHashTableBase::EDefaultSpecifier_Normal>
{
public:
inline static TGeneralHashFunction32 Hash();
inline static TGeneralIdentityRelation Id();
};
inline TGeneralHashFunction32 RHashTableBase::Defaults<TSurfaceId, RHashTableBase::EDefaultSpecifier_Normal>::Hash()
{return (TGeneralHashFunction32)&DefaultHash::Integer;}
inline TGeneralIdentityRelation RHashTableBase::Defaults<TSurfaceId, RHashTableBase::EDefaultSpecifier_Normal>::Id()
{return (TGeneralIdentityRelation)&DefaultIdentity::Integer;}
TUint32 COpenWfcWrapper::HashFunction(const TSurfaceId& aHashKey)
{
TPckgC<TSurfaceId> pckg(aHashKey);
return DefaultHash::Des8(pckg);
}
COpenWfcWrapper* COpenWfcWrapper::NewL(TInt aScreenNo, CDisplayPolicy* aDisplayPolicy)
{
COpenWfcWrapper* wrapper = new (ELeave) COpenWfcWrapper(aDisplayPolicy);
CleanupStack::PushL(wrapper);
wrapper->ConstructL(aScreenNo);
CleanupStack::Pop(wrapper);
return wrapper;
}
COpenWfcWrapper::COpenWfcWrapper(CDisplayPolicy* aDisplayPolicy)
: iUiSurface(TSurfaceId::CreateNullId()), iDisplayPolicy(aDisplayPolicy),
iSourceMap(THashFunction32<TSurfaceId>(COpenWfcWrapper::HashFunction), TIdentityRelation<TSurfaceId>()),
iDevice(WFC_INVALID_HANDLE),
iOnScreenContext(WFC_INVALID_HANDLE),
iScreenNumber(-1),
iJobManager(NULL),
iRotation(MWsScene::ESceneAntiClockwise0),
iAutonomousCompositionInitiated(EFalse)
{
}
void COpenWfcWrapper::ConstructL(TInt aScreenId)
{
#ifdef _DEBUG
_LIT(KOpenWfcLog, "+ COpenWfcWrapper::ConstructL");
RDebug::Print(KOpenWfcLog);
#endif
iScreenNumber = aScreenId;
WFCint filterList[] = { WFC_DEVICE_FILTER_SCREEN_NUMBER, iScreenNumber, WFC_NONE};
iEGLDisplay = eglGetDisplay(EGL_DEFAULT_DISPLAY);
eglInitialize(iEGLDisplay, NULL, NULL);
WFCint dev = 0;
if ((wfcEnumerateDevices(&dev, 1, filterList) == 1) &&
(dev != WFC_INVALID_HANDLE))
{
// clean previous errors
wfcGetError(iDevice);
// Let's get the device handle, opening in the same time the device
iDevice = wfcCreateDevice(dev, NULL);
if (iDevice==NULL)
{
//Not enough information to deduce why the device could not be created. Report as memory failure
User::Leave(KErrNoMemory);
}
//Can't clean previous errors until we have a device, and the errors should be none if it created successfully.
OPENWFC_ASSERT_DEBUG(!wfcGetError(iDevice),EPanicWfcStartupErrorUnexpected);
iOnScreenContext = wfcCreateOnScreenContext(iDevice, iScreenNumber, NULL);
if (iOnScreenContext==NULL)
{
TInt err = wfcGetError(iDevice);
OPENWFC_ASSERT_DEBUG(err==WFC_ERROR_OUT_OF_MEMORY,EPanicWfcContextNotCreated);
User::Leave((err==WFC_ERROR_OUT_OF_MEMORY)?KErrNoMemory:KErrUnknown);
}
wfcSetContextAttribi(iDevice, iOnScreenContext, WFC_CONTEXT_ROTATION, WFC_ROTATION_0);
wfcSetContextAttribi(iDevice, iOnScreenContext, WFC_CONTEXT_BG_COLOR, KRgbaBlack);
iContextDisplayControl = NULL;
User::LeaveIfNull(iJobManager = COpenWfcJobManger::NewL(*this, iDevice, iOnScreenContext, iScreenNumber));
}
else
{
// we cannot continue because we cannot find a device for the given screenId
// Not enough information to get detailed error! Report as parameter not accepted.
User::Leave(KErrArgument);
}
iSurfaceManager.Open();
iSourceMap.Reserve(iInitialSourceMapSize);
}
COpenWfcWrapper::~COpenWfcWrapper()
{
iUiElement1 = NULL;
iUiElement2 = NULL;
if(!iUiSurface.IsNull())
UnregisterSurface(iUiSurface);
if (iJobManager)
{
PauseComposition();
delete iJobManager;
}
//destroy all the elements, which should remove all the element references.
while (iCleanupElementList)
{
CElementWrapper* cleanupElement = iCleanupElementList;
delete cleanupElement;
OPENWFC_ASSERT_DEBUG(cleanupElement != iCleanupElementList,EPanicWfcElementNotRemovedOnShutdown);
if (cleanupElement == iCleanupElementList)
{
break; //can't keep cleaning up the same front item
}
}
THashMapIter<TSurfaceId, SourceAndRef> iter(iSourceMap);
const TSurfaceId* nextKey = iter.NextKey();
while (nextKey)
{
const SourceAndRef* pSource = NULL;
//destroy any remaining registered surfaces
pSource = iter.CurrentValue();
OPENWFC_ASSERT_DEBUG(pSource && pSource->elementRef == 0,EPanicWfcElementNotRemovedOnShutdown);
wfcDestroySource(iDevice,pSource->source);
nextKey = iter.NextKey();
}
iSourceMap.Close();
iSurfaceManager.Close();
eglTerminate(iEGLDisplay);
// Destroying the context should take care of any sources or masks
wfcDestroyContext(iDevice, iOnScreenContext);
wfcDestroyDevice(iDevice);
}
class CBaseExtension: public CBase
{
public:
virtual TInt Extension_(TUint aExtensionId, TAny*& a0, TAny* a1)
{ return CBase::Extension_(aExtensionId,a0,a1); }
};
TInt COpenWfcWrapper::Extension_(TUint aExtensionId, TAny*& aRetPtr, TAny* aExtra)
{
#ifndef _DEBUG
(void) aExtra;
#endif
switch (aExtensionId)
{
#ifdef _DEBUG
case EExtensionDebugBackendGuid:
return KErrNotSupported;
case EExtensionDebugContextGuid:
aRetPtr=(TAny*)OnScreenContext();
return KErrNone;
case EExtensionDebugDeviceGuid:
aRetPtr=(TAny*)Device();
return KErrNone;
case EExtensionDebugElementGuid:
if (aExtra)
{
CElementWrapper* newElement=static_cast<CElementWrapper*>(aExtra);
aRetPtr=(TAny*)newElement->Element();
return KErrNone;
}
else
{
return KErrBadHandle;
}
case EExtensionDebugSourceGuid:
if (aExtra)
{
TSurfaceId* surfId=static_cast<TSurfaceId*>(aExtra);
SourceAndRef* foundSourceAndRef=iSourceMap.Find(*surfId);
if (foundSourceAndRef)
{
aRetPtr=(TAny*)foundSourceAndRef->source;
return KErrNone;
}
else
{
return KErrNotFound;
}
}
else
{
return KErrBadHandle;
}
#endif
case MCompositionSurfaceUpdate::ETypeId:
{
CBaseExtension* basePtr = NULL;
SymbianStreamHasRegisteredScreenNotifications(iScreenNumber,reinterpret_cast<void**>(&basePtr));
if (basePtr)
{
return basePtr->Extension_(MCompositionSurfaceUpdate::KUidCompositionSurfaceUpdate,aRetPtr,aExtra);
}
else
{
return KErrNotSupported;
}
}
case MWsDisplayControl::ETypeId:
if (iContextDisplayControl)
{
aRetPtr= static_cast<MWsDisplayControl*>(this);
return KErrNone;
}
else
{
return KErrNotSupported;
}
case MDisplayControlBase::ETypeId:
if (iContextDisplayControl)
{
aRetPtr= static_cast<MDisplayControlBase*>(this);
return KErrNone;
}
else
{
return KErrNotSupported;
}
default:
return KErrNotSupported;
}
}
MWsElement* COpenWfcWrapper::CreateElementL()
{
CElementWrapper* element = CElementWrapper::NewL(*this,iCleanupElementList);
return element;
}
void COpenWfcWrapper::DestroyElement(MWsElement* aElement)
{
if(aElement)
{
CElementWrapper* element=static_cast<CElementWrapper*>(aElement);
RemoveElementFromSceneList(element);
if (!(element->UpdateFlags()&CElementWrapper::EUpdate_SceneCommited))
{
delete element;
}
}
}
void COpenWfcWrapper::Compose(TRequestStatus* aCompleted)
{
STD_ASSERT_DEBUG(CompositionDue(), EPluginPanicCompositionSequenceError);
OPENWFC_ASSERT_DEBUG(iJobManager, EPanicWfcThreadManagerNotInitialised);
if (!iAutonomousCompositionInitiated)
{
ResumeComposition();
}
iJobManager->ComposeRequest(aCompleted);
iCompositionModified = EFalse;
ResumeCompositorIfPaused();
}
TSize COpenWfcWrapper::ScreenSize() const
{
// clean previous errors
#ifdef _DEBUG
(void)wfcGetError(iDevice);
#endif
TInt height = wfcGetContextAttribi(iDevice, iOnScreenContext, WFC_CONTEXT_TARGET_HEIGHT);
OPENWFC_ASSERT_DEBUG(TranslateOpenWfcError(wfcGetError(iDevice)) == KErrNone, EPanicWfcBadAttribute);
TInt width = wfcGetContextAttribi(iDevice, iOnScreenContext, WFC_CONTEXT_TARGET_WIDTH);
OPENWFC_ASSERT_DEBUG(TranslateOpenWfcError(wfcGetError(iDevice)) == KErrNone, EPanicWfcBadAttribute);
WFCint rotation = wfcGetContextAttribi(iDevice, iOnScreenContext, WFC_CONTEXT_ROTATION);
OPENWFC_ASSERT_DEBUG(TranslateOpenWfcError(wfcGetError(iDevice)) == KErrNone, EPanicWfcBadAttribute);
return rotation == WFC_ROTATION_0 || rotation == WFC_ROTATION_180 ? TSize(width, height) : TSize(height, width);
}
TInt COpenWfcWrapper::RegisterSurface (const TSurfaceId& aSurface)
{
// clean previous errors
wfcGetError(iDevice);
//check surface id not null
if (aSurface.IsNull())
{
return KErrArgument;
}
if (!IsValidSurface(aSurface))
{
return KErrBadHandle;
}
//look for surface being registered
SourceAndRef* sourceAndRef = iSourceMap.Find(aSurface);
if (sourceAndRef)
{
//if registered increase ref count and return
sourceAndRef->sourceRef++;
return KErrNone;
}
// Surface not currently registered so do so now.
// Initialise struct. Could be handled via. constructor.
SourceAndRef newSourceAndRef;
newSourceAndRef.source = NULL;
newSourceAndRef.sourceRef = 1; //Surface reference count
newSourceAndRef.elementRef = 0; //Element reference count
//No need to acquire stream as public NativeStream handle is TSurfaceId
WFCNativeStreamType stream = reinterpret_cast<WFCNativeStreamType>(&aSurface);
//create source
newSourceAndRef.source = wfcCreateSourceFromStream(iDevice,iOnScreenContext,stream,NULL);
//check for valid surface size should be performed by compositor in CreateSource.
if (newSourceAndRef.source == WFC_INVALID_HANDLE)
{
return TranslateOpenWfcError(wfcGetError(iDevice));
}
//add to list
TInt err = iSourceMap.Insert(aSurface,newSourceAndRef);
if (err != KErrNone)
{
wfcDestroySource(iDevice,newSourceAndRef.source);
return KErrNoMemory;
}
return KErrNone;
}
TInt COpenWfcWrapper::UnregisterSurface (const TSurfaceId& aSurface)
{
//check surface id not null
if (aSurface.IsNull())
{
return KErrArgument;
}
if (!IsValidSurface(aSurface))
{
return KErrArgument;
}
SourceAndRef* sourceAndRef = iSourceMap.Find(aSurface);
if (sourceAndRef && sourceAndRef->sourceRef == 0)
{
sourceAndRef = NULL;
}
if (sourceAndRef)
{
if (sourceAndRef->sourceRef <= 1)
{
sourceAndRef->sourceRef = 0;
if (sourceAndRef->elementRef > 0)
{
//if elements are currently in use
return KErrInUse;
}
wfcDestroySource(iDevice,sourceAndRef->source); //removing source reference on the stream
//destroy entry
iSourceMap.Remove(aSurface);
return KErrNone;
}
sourceAndRef->sourceRef--;
return KErrNone;
}
return KErrBadHandle;
}
TBool COpenWfcWrapper::IsValidSurface(const TSurfaceId& aSurface)
{
if (aSurface.Type() != TSurfaceId::EScreenSurface)
{
RSurfaceManager::TInfoBuf buff;
TInt err = SurfaceManager().SurfaceInfo(aSurface, buff);
if (err == KErrArgument)
{
return EFalse;
}
}
return ETrue;
}
/**
* Finds the source for a registered surface ID and increments its "element" reference count
* @return registered source handle or WFC_INVALID_HANDLE if not registered
**/
WFCSource COpenWfcWrapper::IncEltRefRegSource(const TSurfaceId& aHashKey)
{
SourceAndRef* foundSourceAndRef=iSourceMap.Find(aHashKey);
if (foundSourceAndRef && foundSourceAndRef->sourceRef)
{ //still registered
foundSourceAndRef->elementRef++;
return foundSourceAndRef->source;
}
return WFC_INVALID_HANDLE;
}
/**
* Finds the source for a registered surface ID and decrements the "element" reference count.
* If all counts are zero then the source is unregistered and the mapping removed
* @return positive if not destroyed, 0 if destroyed
* or KErrBadHandle if bad surface id or surface has no element reference count
**/
TInt COpenWfcWrapper::DecEltRefRegSource(const TSurfaceId& aHashKey)
{
SourceAndRef* foundSourceAndRef=iSourceMap.Find(aHashKey);
if (foundSourceAndRef && foundSourceAndRef->elementRef>0)
{
TInt retRefs=((--foundSourceAndRef->elementRef)+foundSourceAndRef->sourceRef);
if (retRefs==0)
{
wfcDestroySource(iDevice,foundSourceAndRef->source);
iSourceMap.Remove(aHashKey);
}
return retRefs;
}
return KErrBadHandle;
}
void COpenWfcWrapper::RemoveElement(MWsElement* aElement)
{
if (!aElement)
{
return;
}
CElementWrapper* removeElement = static_cast<CElementWrapper*>(aElement);
//the UI element is a special case since we set and maintain the surface
TUint32 renderStageFlags;
removeElement->GetRenderStageFlags(renderStageFlags);
if (renderStageFlags & MWsElement::EElementIsIndirectlyRenderedUserInterface ||
renderStageFlags & MWsElement::EElementIsDirectlyRenderedUserInterface)
{
if(removeElement == iUiElement1)
iUiElement1 = NULL;
else if(removeElement == iUiElement2)
iUiElement2 = NULL;
else
STD_ASSERT_DEBUG(EFalse, EPluginPanicNonMatchingRemovalOfUiElement);
}
RemoveElementFromSceneList(removeElement);
removeElement->InsertAfter(iRemoveElementList,NULL,CElementWrapper::EUpdate_Remove); //insert into remove element list!!!
SetCompositionModified();
}
void COpenWfcWrapper::RemoveElementFromSceneList(CElementWrapper* aElement)
{
CElementWrapper** refFromElementBelow=NULL;
if (iSceneElementList==aElement)
{
refFromElementBelow=&iSceneElementList; //remove from bottom of scene
}
else if (iRemoveElementList==aElement)
{
refFromElementBelow=&iRemoveElementList;
}
else
{
refFromElementBelow=aElement->RefsMyElementBelow(); //remove from current mid-list position
}
aElement->RemoveAfter(refFromElementBelow);
}
TInt COpenWfcWrapper::SetUiSurface(const TSurfaceId& aNewUiSurface)
{
TInt err = RegisterSurface(aNewUiSurface);
if (!err)
{
if(iUiElement1)
{
err = iUiElement1->ConnectSurface(aNewUiSurface);
STD_ASSERT_DEBUG(!err, EPluginPanicNewUiSurfaceUnsettable);
}
if(iUiElement2)
{
err = iUiElement2->ConnectSurface(aNewUiSurface);
STD_ASSERT_DEBUG(!err, EPluginPanicNewUiSurfaceUnsettable);
}
}
if(!err)
{
if(!iUiSurface.IsNull())
{
// This should not fail as the surface will no longer be used by any element
err = UnregisterSurface(iUiSurface);
if (err == KErrInUse) // This is not needed once openwf implementation is corrected:
// It should not return KErrInUse if it is only the backend holding onto it.
{
err = KErrNone;
}
STD_ASSERT_DEBUG(!err, EPluginPanicPreviousUiSurfaceUnregisterable);
}
iUiSurface = aNewUiSurface;
}
return err;
}
TInt COpenWfcWrapper::AddElement(MWsElement* aElement, MWsElement* aAbove)
{
TInt err = KErrNone;
CElementWrapper* addedElement = static_cast<CElementWrapper*>(aElement);
CElementWrapper* insertAboveThisElement = static_cast<CElementWrapper*>(aAbove);
if (aElement == aAbove)
{
return KErrArgument;
}
if (addedElement == NULL || &addedElement->Owner()!=this ||
(insertAboveThisElement && &insertAboveThisElement->Owner()!=this) ||
(addedElement->UpdateFlags() & CElementWrapper::EUpdate_Destroy))
{
return KErrArgument;
}
if (insertAboveThisElement &&
((!insertAboveThisElement->RefsMyElementBelow() && iSceneElementList != insertAboveThisElement) ||
(insertAboveThisElement->UpdateFlags() & (CElementWrapper::EUpdate_Remove | CElementWrapper::EUpdate_Destroy))))
{
return KErrArgument;
}
//the UI element is a special case since we set and maintain the surface
TUint32 renderStageFlags;
addedElement->GetRenderStageFlags(renderStageFlags);
if (renderStageFlags & MWsElement::EElementIsIndirectlyRenderedUserInterface ||
renderStageFlags & MWsElement::EElementIsDirectlyRenderedUserInterface)
{
err = AttachSurfaceToUiElement(addedElement);
}
if(!err)
{
//figure out which element to add the element above
const TSurfaceId& newSurf = addedElement->ConnectedSurface();
if (!addedElement->ConnectedSurface().IsNull())
{
//is surface registered
WFCSource newSource = IncEltRefRegSource(newSurf);
if (newSource == WFC_INVALID_HANDLE)
{ //suggests the surface was not registered
return KErrArgument;
}
DecEltRefRegSource(newSurf); //only need to decrement if it found a source
}
RemoveElementFromSceneList(addedElement);
// figure out which element to add it below
CElementWrapper** insertBelowThisElement = NULL;
if (insertAboveThisElement)
{
insertBelowThisElement=&insertAboveThisElement->MyElementAbove();
}
else
{
insertBelowThisElement=&iSceneElementList;
}
addedElement->InsertAfter(*insertBelowThisElement,insertAboveThisElement,CElementWrapper::EUpdate_Insert);
SetCompositionModified();
}
return err;
}
void COpenWfcWrapper::Compose(const TSurfaceId& aOffScreenTarget, TRequestStatus* aCompleted)
{
if (aOffScreenTarget.IsNull())
{
if (aCompleted)
{
User::RequestComplete(aCompleted, KErrNone);
return;
}
}
ComposeInternal(aOffScreenTarget,TPoint(0,0),iSceneElementList,NULL,aCompleted);
}
void COpenWfcWrapper::Compose(const TSurfaceId& aOffScreenTarget, const TPoint& aOrigin,
MWsElement* aStart, MWsElement* aEnd, TRequestStatus* aCompleted)
{
if (aOffScreenTarget.IsNull())
{
if (aCompleted)
{
User::RequestComplete(aCompleted, KErrNone);
return;
}
}
CElementWrapper* startElement=static_cast<CElementWrapper*>(aStart);
CElementWrapper* endElement=static_cast<CElementWrapper*>(aEnd);
if (startElement)
{
if ( &startElement->Owner()!=this
|| (startElement!=iSceneElementList && !startElement->ElementBelow())
|| (startElement->UpdateFlags() & (startElement->EUpdate_Remove|startElement->EUpdate_Destroy))
)
{
if (aCompleted)
{
RThread().RequestComplete(aCompleted, KErrArgument);
}
return;
}
if (endElement)
{ //If endElement is NULL then draw to end else draw including the specified endElement
TBool fail=EFalse;
if ( &endElement->Owner()!=this
|| (endElement->UpdateFlags() & (endElement->EUpdate_Remove|endElement->EUpdate_Destroy))
)
{
fail=ETrue;
}
else
{
for (CElementWrapper* sceneElement=startElement;sceneElement!=endElement;sceneElement=sceneElement->MyElementAbove())
{
if (sceneElement==NULL)
{
fail=ETrue;
break;
}
}
}
if (fail)
{
if (aCompleted)
{
RThread().RequestComplete(aCompleted, KErrArgument);
}
return;
}
aEnd=aEnd->ElementAbove(); //now scene does NOT include endElement. May now be NULL!
}
}
else
{
aEnd=NULL;
}
ComposeInternal(aOffScreenTarget,aOrigin,aStart,aEnd,aCompleted);
}
/** Internal compose does not check some errors.
* They should have already been checked by the public API caller.
* NOTE element aEnd is NOT composed by this internal method!
* Any elements pending removal will not be displayed (including aStart and aEnd.
*
* @param aOffScreenTarget A valid surface for offscreen composition.
* @param aOrigin The origin sets where the top-left corner of the
* surface is within the element coordinate system.
* @param aStart The starting element of the elements to be composed.
* @param aEnd The element above the last element to be composed (or NULL).
* @param aCompleted NULL or request status that will be set to KErrNone when
* the composition finishes.
**/
void COpenWfcWrapper::ComposeInternal (const TSurfaceId& aOffScreenTarget,
const TPoint& aOrigin,
MWsElement* aStart,
MWsElement* aEnd,
TRequestStatus* aCompleted)
{
// Initial approach reuses the device but it may be more safer to create, and destroy, its own device
CElementWrapper* startElement=static_cast<CElementWrapper*>(aStart);
CElementWrapper* endElement=static_cast<CElementWrapper*>(aEnd);
TInt err = KErrNone;
#ifdef _DEBUG
// clean previous errors
wfcGetError(iDevice);
#endif
if (aCompleted)
{
*aCompleted = KRequestPending;
}
OffScreenComposeGuard composeGuard(aCompleted);
WFCNativeStreamType stream=reinterpret_cast<WFCNativeStreamType>(&aOffScreenTarget);
RSurfaceManager::TInfoBuf buff;
err=SurfaceManager().SurfaceInfo(aOffScreenTarget,buff);
OPENWFC_ASSERT_DEBUG(err==KErrNone,TOpenWfcPanic(__LINE__));
if (err!=KErrNone || buff().iSize.iWidth ==0 || buff().iSize.iHeight == 0)
{
composeGuard.LogRequestStatusError(KErrArgument);
composeGuard.Close();
return;
}
// Create the native stream target
TSurfaceId targetSurfaceId = TSurfaceId::CreateNullId();
WFCNativeStreamType targetStream = WFC_INVALID_HANDLE;
OPENWFC_ASSERT_DEBUG(wfcGetError(iDevice)==WFC_ERROR_NONE,(TOpenWfcPanic)__LINE__);
targetSurfaceId = aOffScreenTarget;
targetStream = stream;
EGLint attrib_list[1] = {EGL_NONE };
EGLSyncKHR sync = eglCreateSyncKHR(iEGLDisplay,
EGL_SYNC_REUSABLE_KHR,
attrib_list);
if (sync == EGL_NO_SYNC_KHR)
{
composeGuard.LogRequestStatusError(KErrNoMemory);
composeGuard.Close();
return;
}
composeGuard.SetSync(sync, iEGLDisplay);
// Now, that we have the target surface stream we can create the temporary context
WFCContext offScreenContext = wfcCreateOffScreenContext(iDevice, targetStream, NULL);
if (offScreenContext == WFC_INVALID_HANDLE)
{
composeGuard.LogRequestStatusError(TranslateOpenWfcError(wfcGetError(iDevice)));
composeGuard.Close();
return;
}
composeGuard.SetDeviceAndContext(iDevice, offScreenContext);
TInt contextBackGroundColour = wfcGetContextAttribi(iDevice, iOnScreenContext, WFC_CONTEXT_BG_COLOR);
wfcSetContextAttribi(iDevice, offScreenContext, WFC_CONTEXT_BG_COLOR, contextBackGroundColour);
OPENWFC_ASSERT_DEBUG(TranslateOpenWfcError(wfcGetError(iDevice)) == KErrNone, EPanicWfcBadAttribute);
TPoint elementOffset(-aOrigin.iX,-aOrigin.iY);
// let's replicate the scene to the offscreen context
WFCElement previousTargetElement = WFC_INVALID_HANDLE;
for (CElementWrapper* elementScene = startElement; elementScene !=endElement; elementScene = elementScene->MyElementAbove())
{
if (!(elementScene->UpdateFlags()&(elementScene->EUpdate_Destroy|elementScene->EUpdate_Remove)))
{
// we do our best to replicate the elements
TInt err=elementScene->ReplicateElements(offScreenContext, previousTargetElement,elementOffset);
if (err)
{
composeGuard.LogRequestStatusError(err);
composeGuard.Close();
return;
}
}
}
// let's compose
wfcCommit(iDevice, offScreenContext, WFC_TRUE);
wfcCompose(iDevice, offScreenContext, WFC_TRUE);
wfcFence(iDevice, offScreenContext, iEGLDisplay, sync);
EGLTimeKHR timeout = (EGLTimeKHR) EGL_FOREVER_KHR;
OPENWFC_ASSERT_DEBUG(TranslateOpenWfcError(wfcGetError(iDevice)) == KErrNone, EPanicWfcBadAttribute);
eglClientWaitSyncKHR(iEGLDisplay, sync, 0, timeout);
composeGuard.Close();
}
void COpenWfcWrapper::PauseComposition (void)
{
OPENWFC_ASSERT_DEBUG(iJobManager, EPanicWfcThreadManagerNotInitialised);
iAutonomousCompositionInitiated = ETrue;
iJobManager->CompositionPauseRequest();
}
void COpenWfcWrapper::ResumeComposition (void)
{
OPENWFC_ASSERT_DEBUG(iJobManager, EPanicWfcThreadManagerNotInitialised);
iAutonomousCompositionInitiated = ETrue;
iJobManager->CompositionResumeRequest();
}
TBitFlags32 COpenWfcWrapper::SupportedScreenRotations() const
{
TBitFlags32 result;
// we DO support, by default, all these rotations
result.Set(MWsScene::ESceneAntiClockwise0);
result.Set(MWsScene::ESceneAntiClockwise90);
result.Set(MWsScene::ESceneAntiClockwise180);
result.Set(MWsScene::ESceneAntiClockwise270);
return result;
}
void COpenWfcWrapper::SetScreenRotation(MWsScene::TSceneRotation aRotation)
{
#ifdef _DEBUG
// clean previous errors
(void)wfcGetError(iDevice);
#endif
if (aRotation != iRotation)
{
WFCRotation wfcRotation = WFC_ROTATION_0;
switch (aRotation)
{
case MWsScene::ESceneAntiClockwise90:
wfcRotation = WFC_ROTATION_90;
break;
case MWsScene::ESceneAntiClockwise180:
wfcRotation = WFC_ROTATION_180;
break;
case MWsScene::ESceneAntiClockwise270:
wfcRotation = WFC_ROTATION_270;
break;
default:
wfcRotation = WFC_ROTATION_0;
break;
}
iRotation = aRotation;
wfcSetContextAttribi(iDevice, iOnScreenContext, WFC_CONTEXT_ROTATION, wfcRotation);
OPENWFC_ASSERT_DEBUG(TranslateOpenWfcError(wfcGetError(iDevice)) == KErrNone, EPanicWfcBadAttribute);
}
SetCompositionModified();
}
TInt COpenWfcWrapper::SetConfiguration(const TDisplayConfiguration& aConfig)
{
return iContextDisplayControl->SetConfiguration (aConfig);
}
MWsScene::TSceneRotation COpenWfcWrapper::ScreenRotation() const
{
#ifdef _DEBUG
// clean previous errors
(void)wfcGetError(iDevice);
#endif
WFCint result = wfcGetContextAttribi(iDevice, iOnScreenContext, WFC_CONTEXT_ROTATION);
OPENWFC_ASSERT_DEBUG(TranslateOpenWfcError(wfcGetError(iDevice)) == KErrNone, EPanicWfcBadAttribute);
MWsScene::TSceneRotation rotation = MWsScene::ESceneAntiClockwise0;
switch (result)
{
case WFC_ROTATION_90:
rotation = MWsScene::ESceneAntiClockwise90;
break;
case WFC_ROTATION_180:
rotation = MWsScene::ESceneAntiClockwise180;
break;
case WFC_ROTATION_270:
rotation = MWsScene::ESceneAntiClockwise270;
break;
case WFC_ROTATION_0:
default:
OPENWFC_ASSERT_DEBUG(result==WFC_ROTATION_0,(TOpenWfcPanic)__LINE__);
rotation = MWsScene::ESceneAntiClockwise0;
break;
}
return rotation;
}
TInt COpenWfcWrapper::NumberOfResolutions()const
{
if (iContextDisplayControl)
{
return iContextDisplayControl->NumberOfResolutions();
}
return KErrNotSupported;
}
TInt COpenWfcWrapper::GetResolutions(RArray<TResolution>& aResolutions)const
{
if (iContextDisplayControl)
{
return iContextDisplayControl->GetResolutions(aResolutions);
}
return KErrNotSupported;
}
void COpenWfcWrapper::GetConfiguration(TDisplayConfiguration& aConfig)const
{
if (iContextDisplayControl)
{
iContextDisplayControl->GetConfiguration (aConfig);
}
}
TInt COpenWfcWrapper::PreferredDisplayVersion() const
{
if (iContextDisplayControl)
{
return iContextDisplayControl->PreferredDisplayVersion();
}
return KErrNotSupported;
}
void COpenWfcWrapper::NotifyOnDisplayChange(TRequestStatus& aStatus)
{
// Stub for future implementation.
TRequestStatus *status = &aStatus;
RThread().RequestComplete(status, KErrNotSupported);
}
void COpenWfcWrapper::NotifyOnDisplayChangeCancel()
{
// Stub for future implementation.
}
void COpenWfcWrapper::NotifyOnConfigChange(TRequestStatus& aStatus)
{
// Stub for future implementation.
TRequestStatus *status = &aStatus;
RThread().RequestComplete(status, KErrNotSupported);
}
void COpenWfcWrapper::NotifyOnConfigChangeCancel()
{
// Stub for future implementation.
}
void COpenWfcWrapper::FlushSceneElementChanges()
{
while (CElementWrapper* curr = iRemoveElementList)
{
curr->FlushSceneChanges();
RemoveElementFromSceneList(curr);
if (curr->UpdateFlags() & CElementWrapper::EUpdate_Destroy)
{
delete curr;
}
}
iRemoveElementList=NULL;
if (CElementWrapper* curr=iSceneElementList)
{
for (CElementWrapper*next=curr->MyElementAbove(); curr; curr=next,next=curr?curr->MyElementAbove():NULL)
{
curr->FlushSceneChanges();
}
}
}
TInt COpenWfcWrapper::TranslateOpenWfcError(WFCErrorCode error)
{
switch (error)
{
case WFC_ERROR_NONE:
return KErrNone;
case WFC_ERROR_OUT_OF_MEMORY:
return KErrNoMemory;
case WFC_ERROR_ILLEGAL_ARGUMENT:
return KErrArgument;
case WFC_ERROR_BAD_ATTRIBUTE:
return KErrArgument;
case WFC_ERROR_BAD_DEVICE:
return KErrArgument;
case WFC_ERROR_UNSUPPORTED:
return KErrNotSupported;
case WFC_ERROR_IN_USE:
return KErrInUse;
case WFC_ERROR_BUSY:
return KErrServerBusy;
case WFC_ERROR_BAD_HANDLE:
return KErrBadHandle;
case WFC_ERROR_INCONSISTENCY:
return KErrGeneral;
case WFC_ERROR_FORCE_32BIT:
// intentional fall through
default:
return KErrUnknown;
}
}
void COpenWfcWrapper::DestroyAllContextElements(WFCDevice dev, WFCContext ctx)
{
// we try our best to destroy all elements of the specified context
if (dev != WFC_INVALID_HANDLE && ctx != WFC_INVALID_HANDLE)
{
WFCElement element = wfcGetContextAttribi(dev, ctx, WFC_CONTEXT_LOWEST_ELEMENT);
if (element != WFC_INVALID_HANDLE)
{
wfcDestroyElement(dev, element);
}
}
}
void COpenWfcWrapper::PauseCompositorIfNeeded()
{
if (!iPaused && iAllowCompositorPause && iWithinBeginEnd)
{
PauseComposition();
iPaused = ETrue;
}
}
/**
Sets the system state for modified scene composition.
- Pause OpenWF composition if the standard render stage is within a begin/end block.
- If not within a pause/end block then set a flag to indicate that the scene composition
has been modified. On entering the begin/end block composition will be paused appropriatly.
*/
void COpenWfcWrapper::SetCompositionModified()
{
PauseCompositorIfNeeded();
iCompositionModified = ETrue;
}
void COpenWfcWrapper::ResumeCompositorIfPaused()
{
if (iPaused)
ResumeComposition();
iPaused = EFalse;
}
void COpenWfcWrapper::Begin(const TRegion* aRegion)
{
iWithinBeginEnd = ETrue;
iAllowCompositorPause = (aRegion && !aRegion->IsEmpty());
if (iCompositionModified)
PauseCompositorIfNeeded();
}
TBool COpenWfcWrapper::CompositionDue()
{
return (iWithinBeginEnd && iCompositionModified);
}
void COpenWfcWrapper::End()
{
iWithinBeginEnd = EFalse;
}
TInt COpenWfcWrapper::FlushedSetConfiguration(const TDisplayConfiguration& /*aConfig*/)
{
OPENWFC_ASSERT_DEBUG(0, EPanicMethodNotImplemented);
TInt retval=KErrNone;
if (retval<=KErrNone)
{
SetCompositionModified();
}
return retval;
}
CDisplayPolicy* COpenWfcWrapper::DisplayPolicy()
{
return iDisplayPolicy;
}
TInt COpenWfcWrapper::AttachSurfaceToUiElement(CElementWrapper* aNewUiElement)
{
STD_ASSERT_DEBUG(!iUiSurface.IsNull(), EPluginPanicUiSurfaceIsNull);
if(iUiElement1 == NULL || iUiElement1 == aNewUiElement)
iUiElement1 = aNewUiElement;
else if(iUiElement2 == NULL || iUiElement2 == aNewUiElement)
iUiElement2 = aNewUiElement;
else
STD_ASSERT_DEBUG(EFalse, EPluginPanicDuplicateUiElement);
return aNewUiElement->ConnectSurface(iUiSurface);
}