1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/graphics/windowing/windowserver/nonnga/remotegc/DrawSection.cpp Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,198 @@
1.4 +// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
1.5 +// All rights reserved.
1.6 +// This component and the accompanying materials are made available
1.7 +// under the terms of "Eclipse Public License v1.0"
1.8 +// which accompanies this distribution, and is available
1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
1.10 +//
1.11 +// Initial Contributors:
1.12 +// Nokia Corporation - initial contribution.
1.13 +//
1.14 +// Contributors:
1.15 +//
1.16 +// Description:
1.17 +//
1.18 +
1.19 +#include "Graphics/WSGRAPHICMSGBUF.H"
1.20 +#include "DrawSection.h"
1.21 +
1.22 +const TInt KBufferSize = 1000;
1.23 +
1.24 +/**
1.25 +This uid is used to identify a drawsection in the messagebuffer that is used for IPC.
1.26 +*/
1.27 +const TUid KDrawSection = {0x101F63B2};
1.28 +
1.29 +/**
1.30 +Creates and returns new drawsection.
1.31 +
1.32 +@return A new instance of CDrawSection.
1.33 +*/
1.34 +CDrawSection* CDrawSection::NewL()
1.35 + {
1.36 + return new (ELeave) CDrawSection;
1.37 + }
1.38 +
1.39 +/**
1.40 +Creates and returns new drawsection.
1.41 +
1.42 +@param aDrawRect The drawrect of the drawsection.
1.43 +@param aBoundingRect The boundingrect of the drawcommands of this section.
1.44 +@param aHasBitmapCommand ETrue if the commandbuffer of this drawsection includes a bitmap command of any sort.
1.45 +@return A new instance of CDrawSection.
1.46 +*/
1.47 +CDrawSection* CDrawSection::NewL(const TRect& aDrawRect, const TRect& aBoundingRect, TBool aHasBitmapCommand)
1.48 + {
1.49 + return new (ELeave) CDrawSection(aDrawRect, aBoundingRect, aHasBitmapCommand);
1.50 + }
1.51 +
1.52 +CDrawSection::CDrawSection()
1.53 + {
1.54 + }
1.55 +
1.56 +CDrawSection::CDrawSection(const TRect& aDrawRect, const TRect& aBoundingRect, TBool aHasBitmapCommand) : iDrawRect(aDrawRect),
1.57 + iBoundingRect(aBoundingRect), iHasBitmapCommand(aHasBitmapCommand), iHasBeenExternalized(EFalse)
1.58 + {
1.59 + }
1.60 +
1.61 +CDrawSection::~CDrawSection()
1.62 + {
1.63 + delete iSectionSegBuf;
1.64 + }
1.65 +
1.66 +/**
1.67 +Sets this drawsection's segmented commandbuffer and takes the ownership of the allocated memory.
1.68 +
1.69 +@param aSegbuf This section's segmented commandbuffer.
1.70 +*/
1.71 +void CDrawSection::SetBuffer(CBufBase* aSegBuf)
1.72 + {
1.73 + __ASSERT_DEBUG(aSegBuf, User::Invariant());
1.74 + iSectionSegBuf = aSegBuf;
1.75 + }
1.76 +
1.77 +/**
1.78 +Returns this drawsection's segmented commandbuffer.
1.79 +
1.80 +@return this drawsection's segmented commandbuffer.
1.81 +*/
1.82 +CBufBase* CDrawSection::Buffer() const
1.83 + {
1.84 + return iSectionSegBuf;
1.85 + }
1.86 +
1.87 +/**
1.88 +Sets if this drawsection has been externalized anytime. This is used for partial IPC updates.
1.89 +
1.90 +@param aHasBeenExternalized ETrue if this drawsection has been externalized, otherwise EFalse.
1.91 +*/
1.92 +void CDrawSection::SetHasBeenExternalized(TBool aHasBeenExternalized)
1.93 + {
1.94 + iHasBeenExternalized = aHasBeenExternalized;
1.95 + }
1.96 +
1.97 +/**
1.98 +Returns ETrue if this drawsection has been externalized, otherwise EFalse.
1.99 +
1.100 +@return ETrue if this drawsection has been externalized, otherwise EFalse.
1.101 +*/
1.102 +TBool CDrawSection::HasBeenExternalized() const
1.103 + {
1.104 + return iHasBeenExternalized;
1.105 + }
1.106 +
1.107 +/**
1.108 +Compares this drawsection to aDrawSection and check if they are identical.
1.109 +
1.110 +@param aDrawSection The drawsection to compare with.
1.111 +@return ETrue if the drawsections are identical, otherwise EFalse.
1.112 +*/
1.113 +TBool CDrawSection::IsIdentical(const CDrawSection& aDrawSection) const
1.114 + {
1.115 + const TRect drawRect = aDrawSection.DrawRect();
1.116 + CBufBase* segBuf = aDrawSection.Buffer();
1.117 + if(!iHasBitmapCommand && iDrawRect.iTl == drawRect.iTl && iDrawRect.iBr == drawRect.iBr && segBuf->Size() == iSectionSegBuf->Size())
1.118 + {
1.119 + const TInt count = iSectionSegBuf->Size();
1.120 + for(TInt i = 0; i < count; i++)
1.121 + {
1.122 + const TPtr8 comparePtr = segBuf->Ptr(i);
1.123 + if(iSectionSegBuf->Ptr(i).CompareC(segBuf->Ptr(i))) //Not identical
1.124 + return EFalse;
1.125 +
1.126 + i += comparePtr.Size();
1.127 + }
1.128 + return ETrue;
1.129 + }
1.130 + return EFalse;
1.131 + }
1.132 +
1.133 +/**
1.134 +Returns the drawrect of this drawsection.
1.135 +
1.136 +@return The drawrect of this drawsection.
1.137 +*/
1.138 +TRect CDrawSection::DrawRect() const
1.139 + {
1.140 + return iDrawRect;
1.141 + }
1.142 +
1.143 +/**
1.144 +Externalizes this drawsection to a message buffer to send over IPC.
1.145 +
1.146 +@param aMsgBuf The message buffer to add this drawsection to.
1.147 +*/
1.148 +void CDrawSection::ExternalizeL(RWsGraphicMsgBuf& aMsgBuf)
1.149 + {
1.150 + const TInt length = sizeof(TRect)*2 + iSectionSegBuf->Size();
1.151 + TPtr8 msgPtr(NULL, 0);
1.152 + User::LeaveIfError(aMsgBuf.Append(KDrawSection, length, msgPtr));
1.153 +
1.154 + // Add drawRect to aMsgBuf
1.155 + const TPckgBuf<TRect> drawRect(iDrawRect);
1.156 + msgPtr.Append(drawRect);
1.157 +
1.158 + // Add boundingRect to aMsgBuf
1.159 + const TPckgBuf<TRect> boundingRect(iBoundingRect);
1.160 + msgPtr.Append(boundingRect);
1.161 +
1.162 + // Add drawcommands to aMsgBuf
1.163 + TInt count = 0;
1.164 + const TInt sectionSegBufSize = iSectionSegBuf->Size();
1.165 + while(count < sectionSegBufSize)
1.166 + {
1.167 + TPtr8 ptr = iSectionSegBuf->Ptr(count);
1.168 + msgPtr.Append(ptr);
1.169 + count += ptr.Size();
1.170 + }
1.171 + }
1.172 +
1.173 +/**
1.174 +Loads a drawsection from externalized data.
1.175 +
1.176 +@param aData The parser for the externalized data.
1.177 +@param aIndex The index of the drawsection in CCommandBuffer::iDrawSections to load from the externalized data.
1.178 +*/
1.179 +TInt CDrawSection::LoadL(const TWsGraphicMsgBufParser& aData, TInt aIndex)
1.180 + {
1.181 + if(aData.Uid(aIndex).iUid != KDrawSection.iUid)
1.182 + {
1.183 + return KErrArgument;
1.184 + }
1.185 +
1.186 + const TPtrC8 pckg = aData.Data(aIndex);
1.187 + const TPtrC8 drawRectPtr = pckg.Left(sizeof(TRect));
1.188 + const TPtrC8 boundingRectPtr = pckg.Mid(sizeof(TRect), sizeof(TRect));
1.189 + const TPtrC8 segBufPtr = pckg.Mid(sizeof(TRect)*2);
1.190 +
1.191 + Mem::Copy(&iDrawRect, drawRectPtr.Ptr(), sizeof(TRect));
1.192 + Mem::Copy(&iBoundingRect, boundingRectPtr.Ptr(), sizeof(TRect));
1.193 +
1.194 + if(iSectionSegBuf)
1.195 + delete iSectionSegBuf;
1.196 +
1.197 + iSectionSegBuf = CBufSeg::NewL(KBufferSize);
1.198 + iSectionSegBuf->InsertL(0, segBufPtr);
1.199 + return KErrNone;
1.200 + }
1.201 +