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 "directgdiadapter.h"
sl@0: #include "swdirectgdidriverimpl.h"
sl@0: #include "swdirectgdiimagesourceimpl.h"
sl@0: #include "swdirectgdiimagetargetimpl.h"
sl@0: #include "pixelutil.h"
sl@0: #include <e32cmn.h>
sl@0: #include <pixelformats.h>
sl@0: #include <graphics/sgimage_sw.h>
sl@0: 
sl@0: /**
sl@0: @panic DGDIAdapter 6, if the reference count to DirectGDI driver is invalid.
sl@0: @panic DGDIAdapter 45, if objects are still in the source or target image array.
sl@0: */
sl@0: CSwDirectGdiDriverImpl::~CSwDirectGdiDriverImpl()
sl@0: 	{
sl@0: 	GRAPHICS_ASSERT_DEBUG(iEngines.Count() == 0, EDirectGdiPanicDriverInvalidRefCount);
sl@0: 	GRAPHICS_ASSERT_DEBUG(iTargets.Count() == 0, EDirectGdiPanicItemsLeftInImageArray);
sl@0: 	GRAPHICS_ASSERT_DEBUG(iImageSources.Count() == 0, EDirectGdiPanicItemsLeftInImageArray);
sl@0: 	
sl@0: 	// Delete all the engines owned by this driver
sl@0: 	iEngines.ResetAndDestroy();
sl@0: 	iTargets.ResetAndDestroy();
sl@0: 	iImageSources.ResetAndDestroy();
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Constructor, which initialises base class.
sl@0: */
sl@0: CSwDirectGdiDriverImpl::CSwDirectGdiDriverImpl(RLibrary aLibrary)
sl@0: 	: CDirectGdiDriverInternal(aLibrary)
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Empty function as this adaptation is synchronous.
sl@0: @see CDirectGdiDriverInternal::Flush()
sl@0: */
sl@0: void CSwDirectGdiDriverImpl::Flush()
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Empty function as this adaptation is synchronous.
sl@0: @see CDirectGdiDriverInternal::Finish()
sl@0: */
sl@0: void CSwDirectGdiDriverImpl::Finish()
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: @see CDirectGdiDriver::GetError()
sl@0: */
sl@0: TInt CSwDirectGdiDriverImpl::GetError()
sl@0: 	{
sl@0: 	TInt err = iErrorCode;
sl@0: 	iErrorCode = KErrNone;
sl@0: 	return err;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: @see CDirectGdiDriverInternal::CloseDrawableSource()
sl@0: @panic DGDIAdapter 57, if aHandleRet is not KNullHandle (debug only).
sl@0: */
sl@0: TInt CSwDirectGdiDriverImpl::CreateDrawableSource(TInt& aHandleRet, const RSgDrawable& aSgDrawable)
sl@0: 	{
sl@0: 	TInt err = KErrNotSupported;
sl@0: 	const TUid typeUid = aSgDrawable.DrawableType(); 
sl@0: 	if(KSgImageTypeUid == typeUid)
sl@0: 		{
sl@0: 		CSwDirectGdiImageSourceImpl* imageSource = NULL;
sl@0: 		RSgImage* image =  (RSgImage*) (&aSgDrawable);
sl@0: 		err = CSwDirectGdiImageSourceImpl::New(imageSource, *this, *image);
sl@0: 	
sl@0: 		if (err == KErrNone)
sl@0: 			{
sl@0: 			aHandleRet = reinterpret_cast<TInt>(imageSource);
sl@0: 			}
sl@0: 		}
sl@0: 	return err;
sl@0: 	}
sl@0: 	
sl@0: /**
sl@0: @see CDirectGdiDriverInternal::CreateDrawableSource()
sl@0: @panic DGDIAdapter 47, if the drawable source belonging to aHandle could not be found in the internal 
sl@0: 	   list of sources (debug only).
sl@0: */
sl@0: void CSwDirectGdiDriverImpl::CloseDrawableSource(TInt& aHandle)
sl@0: 	{
sl@0: 	// Graphics Resource and DirectGDI reference implementation only support pixel based resource
sl@0: 	CSwDirectGdiImageSourceImpl* source = reinterpret_cast<CSwDirectGdiImageSourceImpl*>(aHandle);
sl@0: 	if (source)
sl@0: 		source->Close();
sl@0: 	aHandle = KNullHandle;
sl@0: 	}
sl@0: 	
sl@0: /**
sl@0: @see CDirectGdiDriverInternal::CreateImageTarget()
sl@0: @panic DGDIAdapter 58, if aHandleRet is not KNullHandle (debug only).
sl@0: @panic DGDIAdapter 1023, if the attempt to get an RSgImage interface MSgImage_Sw failed.
sl@0: */
sl@0: TInt CSwDirectGdiDriverImpl::CreateImageTarget(TInt& aHandleRet, const RSgImage& aImage)
sl@0: 	{
sl@0: 	TSgImageInfo info;
sl@0: 	TInt ret = aImage.GetInfo(info);
sl@0: 	if (ret != KErrNone)
sl@0: 		{
sl@0: 		return ret;
sl@0: 		}
sl@0: 	TDisplayMode displayMode = PixelFormatUtil::ConvertToDisplayMode(info.iPixelFormat);
sl@0: 	TSize size = info.iSizeInPixels;
sl@0: 	CFbsDrawDevice* device = NULL;
sl@0: 	const MSgImage_Sw* pImage;
sl@0: 	TInt err = aImage.GetInterface(pImage);
sl@0: 	GRAPHICS_ASSERT_DEBUG((err == KErrNone) && (pImage != NULL), EDirectGdiPanicInvalidInterfaceHandle);
sl@0: 	TRAP(err, device = CFbsDrawDevice::NewBitmapDeviceL(size, displayMode, pImage->DataStride()));
sl@0: 	if (err != KErrNone)
sl@0: 		{		
sl@0: 		return err;
sl@0: 		}	
sl@0: 		
sl@0: 	// Setup the new device with the memory from the image
sl@0: 	device->SetBits(pImage->DataAddress());
sl@0: 		
sl@0: 	// Create a new image
sl@0: 	if (err == KErrNone)
sl@0: 		{
sl@0: 		CSwDirectGdiImageTargetImpl* target = NULL;
sl@0: 		err = CSwDirectGdiImageTargetImpl::New(target, *this, device, aImage);
sl@0: 		if (err == KErrNone)
sl@0: 			{
sl@0: 			// Make sure we aren't overwriting an exisiting valid handle.
sl@0: 			GRAPHICS_ASSERT_DEBUG(aHandleRet == KNullHandle, EDirectGdiPanicTargetHandleNotNull);
sl@0: 			aHandleRet = reinterpret_cast<TInt>(target);
sl@0: 			}		
sl@0: 		}
sl@0: 	
sl@0: 	if (err != KErrNone)
sl@0: 		{
sl@0: 		delete device;
sl@0: 		}
sl@0: 		
sl@0: 	return err;
sl@0: 	}
sl@0: 	
sl@0: /**
sl@0: @see CDirectGdiDriverInternal::CloseImageTarget()
sl@0: @panic DGDIAdapter 40, if the image target associated with aHandle could not be found in the 
sl@0:        internal list of targets (debug only).	
sl@0: */
sl@0: void CSwDirectGdiDriverImpl::CloseImageTarget(TInt& aHandle)
sl@0: 	{
sl@0: 	CSwDirectGdiImageTargetImpl* target = reinterpret_cast<CSwDirectGdiImageTargetImpl*>(aHandle);
sl@0: 	if (target)
sl@0: 		target->Close();
sl@0: 	aHandle = KNullHandle;
sl@0: 	}
sl@0: 	
sl@0: 		
sl@0: /**
sl@0: @see CDirectGdiDriverInteral::CreateEngine()
sl@0: */
sl@0: TInt CSwDirectGdiDriverImpl::CreateEngine(MDirectGdiEngine*& aEngine)
sl@0: 	{
sl@0: 	TInt err = KErrNoMemory; 
sl@0: 	CSwDirectGdiEngine* engine = new CSwDirectGdiEngine(this);
sl@0: 	aEngine = engine;	
sl@0: 	if(engine != NULL)	
sl@0: 		{		
sl@0: 		// Put this in an array so we can destroy it on close
sl@0: 		err = iEngines.InsertInAddressOrder(engine);
sl@0: 		if (KErrNone != err)
sl@0: 			{
sl@0: 			delete engine;
sl@0: 			aEngine = NULL;
sl@0: 			}
sl@0: 		}
sl@0: 	return err;
sl@0: 	}
sl@0: 		
sl@0: /**
sl@0: @see CDirectGdiDriverInternal::DestroyEngine()
sl@0: @panic DGDIAdapter 60, if aEngine could not be found in the internal list of engines (debug only).
sl@0: */
sl@0: void CSwDirectGdiDriverImpl::DestroyEngine(MDirectGdiEngine* aEngine)
sl@0: 	{
sl@0: 	TInt index = iEngines.FindInAddressOrder(aEngine);
sl@0: 	GRAPHICS_ASSERT_DEBUG(index != KErrNotFound, EDirectGdiPanicEngineNotFound);
sl@0: 	iEngines.Remove(index);
sl@0: 	delete (static_cast<CSwDirectGdiEngine*>(aEngine));
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: @see CDirectGdiDriverInternal::SetError()
sl@0: */
sl@0: void CSwDirectGdiDriverImpl::SetError(TInt aErr)
sl@0: 	{
sl@0: 	if (aErr != KErrNone && iErrorCode == KErrNone)
sl@0: 		{
sl@0: 		iErrorCode = aErr;
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: No extensions interfaces are supported.
sl@0: 
sl@0: @see CDirectGdiDriver::GetInterface()
sl@0:  */
sl@0: TInt CSwDirectGdiDriverImpl::GetInterface(TUid /*aInterfaceId*/, TAny*& aInterface)
sl@0: 	{
sl@0: 	aInterface = NULL;	
sl@0: 	return KErrExtensionNotSupported;			
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Deactivate the target if it was the current target, decrement the reference count of the target as it can be shared 
sl@0: across many DirectGDI contexts.
sl@0: 
sl@0: @param 	aRenderingTarget The target object which you want to deactivate.
sl@0: 
sl@0: @panic DGDIAdapter 55, if aRengeringTarget is NULL.
sl@0: */
sl@0: void CSwDirectGdiDriverImpl::Deactivate(CSwDirectGdiImageTargetImpl* aRenderingTarget)
sl@0: 	{
sl@0: 	GRAPHICS_ASSERT_ALWAYS(aRenderingTarget, EDirectGdiPanicNullTargetDeactivate);
sl@0: 	aRenderingTarget->Close();
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Checks whether the image source handle is valid. 
sl@0: 
sl@0: @param aHandle The handle to an Image Source that should be found.
sl@0: @return ETrue if aHandle is a valid handle to an image registered with the driver, otherwise EFalse.
sl@0: */
sl@0: TBool CSwDirectGdiDriverImpl::ValidImageSource(TInt aHandle) const
sl@0: 	{
sl@0: 	CSwDirectGdiImageSourceImpl* impl = reinterpret_cast<CSwDirectGdiImageSourceImpl*>(aHandle);
sl@0: 	return iImageSources.FindInAddressOrder(impl) != KErrNotFound;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Checks whether the target image handle is valid. 
sl@0: 
sl@0: @param aHandle The handle to an Image Target that should be found.
sl@0: @return ETrue if aHandle is a valid handle to an image registered with the driver, otherwise EFalse.
sl@0: */
sl@0: TBool CSwDirectGdiDriverImpl::ValidImageTarget(TInt aHandle) const
sl@0: 	{	
sl@0: 	CSwDirectGdiImageTargetImpl* impl = reinterpret_cast<CSwDirectGdiImageTargetImpl*>(aHandle);
sl@0: 	return iTargets.FindInAddressOrder(impl) != KErrNotFound;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Removes the specified image target from the internal list of targets.
sl@0: 
sl@0: @param aImageTarget The image to remove.
sl@0: @return KErrNotFound if it could not be found in the internal list, otherwise KErrNone.
sl@0: */
sl@0: TInt CSwDirectGdiDriverImpl::UnregisterTargetImage(const CSwDirectGdiImageTargetImpl& aImageTarget)
sl@0: 	{
sl@0: 	TInt err = KErrNone;
sl@0: 	TInt index = iTargets.FindInAddressOrder(&aImageTarget);
sl@0: 	if (index == KErrNotFound)
sl@0: 		{
sl@0: 		err = KErrNotFound;
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		iTargets.Remove(index);
sl@0: 		iTargets.GranularCompress();
sl@0: 		}
sl@0: 	return err;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Removes the specified image source from the internal list of sources.
sl@0: 
sl@0: @param aImageSource The image to remove.
sl@0: @return KErrNotFound if it could not be found in the internal list, otherwise KErrNone.
sl@0: */
sl@0: TInt CSwDirectGdiDriverImpl::UnregisterSourceImage(const CSwDirectGdiImageSourceImpl& aImageSource)
sl@0: 	{
sl@0: 	TInt err = KErrNone;
sl@0: 	TInt index = iImageSources.FindInAddressOrder(&aImageSource);
sl@0: 	if (index == KErrNotFound)
sl@0: 		{		
sl@0: 		err = KErrNotFound;
sl@0: 		}
sl@0: 	else
sl@0: 		{	
sl@0: 		iImageSources.Remove(index);
sl@0: 		iImageSources.GranularCompress();
sl@0: 		}
sl@0: 	return err;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Helper function. When an image source is constructed, it registers itself on the driver's internal 
sl@0: list of image sources.
sl@0: @param aImageSource The image to add to the array.
sl@0: @return KErrNone if successful, otherwise one of the system-wide error codes.
sl@0: */
sl@0: TInt CSwDirectGdiDriverImpl::RegisterSourceImage(const CSwDirectGdiImageSourceImpl& aImageSource)
sl@0: 	{
sl@0: 	return iImageSources.InsertInAddressOrder(&aImageSource);
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Helper function. When an image target is constructed, it registers itself on the driver's internal 
sl@0: list of image targets.
sl@0: @param aImageTarget The image to add to the array.
sl@0: @return KErrNone if successful, otherwise one of the system-wide error codes.
sl@0: */
sl@0: TInt CSwDirectGdiDriverImpl::RegisterTargetImage(const CSwDirectGdiImageTargetImpl& aImageTarget)
sl@0: 	{
sl@0: 	return iTargets.InsertInAddressOrder(&aImageTarget);
sl@0: 	}
sl@0: