graphicscomposition/surfaceupdate/tsrc/tredrawhandler.cpp
author Matt Plumtree <matt.plumtree@nokia.com>
Fri, 23 Apr 2010 17:57:02 +0100
branchNewGraphicsArchitecture
changeset 39 a4b63488e0b0
parent 0 5d03bc08d59c
permissions -rw-r--r--
Revise some of the compositor performance improvements to improve correctness. Implement pixel blending using a variation of Jim Blinn's no-division blending algorithm. Move transparency type simplification further up the composition code. Remove some unnecessary fields. Output to YUV implementation needs revision as it is actually converting from YUV (copy of source conversion code).
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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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//
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#include "tredrawhandler.h"
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#include "twindows.h"
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#include <w32std.h>
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CTRedrawHandler::CTRedrawHandler(RWsSession& aWs) : CActive(EPriorityStandard),
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		iWs(aWs)
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	{
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	}
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CTRedrawHandler::~CTRedrawHandler()
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	{
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	Cancel();
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	}
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void CTRedrawHandler::Start()
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	{
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	CActiveScheduler::Add(this);
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	iWs.RedrawReady(&iStatus);
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	SetActive();
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	}
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void CTRedrawHandler::RunL()
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	{
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	TWsRedrawEvent redraw;
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	iWs.GetRedraw(redraw);
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	if (redraw.Handle())
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		{
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		if(redraw.Rect().IsEmpty())
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			{
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			User::Leave(KErrGeneral);
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			}
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		CTWindowTreeNode* node = reinterpret_cast<CTWindowTreeNode *>(redraw.Handle());
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		node->Redraw(redraw);
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		}
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	iWs.RedrawReady(&iStatus);
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	SetActive();
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	}
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void CTRedrawHandler::DoCancel()
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	{
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	iWs.RedrawReadyCancel();
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	}
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TInt CTRedrawHandler::RunError(TInt aError)
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	{
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	return(aError);
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	}
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