1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/graphics/windowing/windowserver/nga/SERVER/openwfc/redrawmsgwindow.h Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,231 @@
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 +// CWsRedrawMsgWindow and associated classes definitions
1.18 +//
1.19 +//
1.20 +
1.21 +#ifndef __REDRAWMSGWINDOW_H__
1.22 +#define __REDRAWMSGWINDOW_H__
1.23 +
1.24 +#include "wnredraw.h"
1.25 +#include "redrawmsgwindow.h"
1.26 +
1.27 +class CWsFbsFont;
1.28 +class CWsDrawableSource;
1.29 +
1.30 +// This class is intended to be used in cases, where it's needed to track how many times a CFbsBitmap
1.31 +// is referenced, e.g. in redraws, where already drawn bitmaps need to be re-drawn in different position.
1.32 +class CFbsBitmapRef : public CFbsBitmap
1.33 + {
1.34 +public:
1.35 + CFbsBitmapRef();
1.36 + ~CFbsBitmapRef();
1.37 + inline TInt RefCount() const;
1.38 + inline void IncRefCount();
1.39 + inline void DecRefCount();
1.40 +private:
1.41 + TInt iRefCount;
1.42 + };
1.43 +
1.44 +class CWsRedrawMsgWindow : public CWsWindowRedraw
1.45 + {
1.46 + class CRedrawSegment;
1.47 + enum TFlags
1.48 + {
1.49 + EBackgroundClear=0x0001, //Clear background when starting redraw
1.50 + EBeginEndRedraw=0x0002, //This window is currently in the middle of a redraw, that is between client calls to BeginRedraw and EndRedraw.
1.51 + EPendingScheduledDraw=0x0004, //We have scheduled a redraw but it hasn't happened yet
1.52 + EStoringEntireWindow=0x0008, //If store commands for the entire window or only the viewport
1.53 + ECurrentRedrawFailedStorage=0x0010, //The current redraw failed to store a command (is reset for each redraw). Is used to make sure we only request a redraw from the client once per failing redraw
1.54 + EPreviousRedrawFailedStorage=0x0020, //The previous redraw failed to store a command. Is used to avoid infinite loops -- if two consecutive redraws fail (i.e. current and previous) then there is no use requesting yet another redraw from the client
1.55 + };
1.56 + enum TScope
1.57 + {
1.58 + EStoreEntireWindow, //We try to obtain draw commands for the entire window
1.59 + EStoreViewport //We only try to obtain commands for the on screen viewport
1.60 + };
1.61 +public:
1.62 + enum TRedrawSegmentType
1.63 + {
1.64 + ESegmentTypePendingRedraw, // A redraw segment still being received
1.65 + ESegmentTypeRedraw // A segment received between a begin and end redraw
1.66 + };
1.67 +public:
1.68 + static void StaticInitL();
1.69 + CWsRedrawMsgWindow(CWsWindow *aWin);
1.70 + ~CWsRedrawMsgWindow();
1.71 + void AddFbsBitmapsL(TInt aHandle, TInt aMaskHandle);
1.72 + void AddFbsBitmapRefL(TInt aHandle);
1.73 + void AddWsBitmapsL(TInt aHandle, TInt aMaskHandle);
1.74 + void AddWsFontL(TInt aHandle);
1.75 + void AddWsDrawableSourceL(TInt aHandle);
1.76 + void SetScope(TScope aStore);
1.77 + void CleanupBitmapRefArray(const RArray<TInt>& aHandleArray);
1.78 +
1.79 +public: //from CWsWindowRedraw
1.80 + void ConstructL();
1.81 + TBool CommandL(TInt aOpcode, TWsWinCmdUnion &aCmd);
1.82 + void ClipInvalidRegion(const TRect &aRect);
1.83 + TBool NeedsRedraw() const;
1.84 + TBool GetRedrawRect(TRect &aRect) const;
1.85 + const TRegion& BaseDrawRegion() const;
1.86 + const TRegion& InvalidArea() const;
1.87 + void ClearRedrawStore(TBool aClearPendingRedraw=EFalse);
1.88 + TBool DrawCommand(CWsGc* aGc,const TAny *aCmdData);
1.89 + void GcAttributeChange(CWsGc* aGc,const TAny *aCmdData);
1.90 + void GcDeactivate(CWsGc* aGc);
1.91 + void ClientExposing();
1.92 + void DrawWindow();
1.93 + void PrepareForResizeL(const TSize &aSize, TSize &aOldSize);
1.94 + void Moved();
1.95 + TBool Contains(const TArray<TGraphicDrawerId>& aDrawers,const TRegion& aRegion) const;
1.96 + TBool ReleaseMemory(MWsMemoryRelease::TMemoryReleaseLevel aLevel);
1.97 + void VisibleRegionChange();
1.98 + TBool ReadyToDraw() const;
1.99 + TInt SizeInBytes() const;
1.100 + TBool RedrawingInProgress() const;
1.101 + void WindowClosing();
1.102 + TBool IsRedrawStoreEmpty() const;
1.103 + TBool IsBackgroundClearEnabled() const;
1.104 + CFbsBitmap* BitmapFromHandle(TInt aHandle) const;
1.105 +
1.106 +private: //from CWsWindowRedraw
1.107 + void Invalidate(const TRect * aRect = 0);
1.108 + TRgb BackColor() const;
1.109 + void Scroll(const TRect &aClipRect, const TPoint &aOffset,const TRect &aRect);
1.110 +
1.111 +private:
1.112 + void RemoveFromRedrawQueueIfEmpty();
1.113 + const TRegion * ReadRegion(const TInt aRegionNum);
1.114 + void BeginRedraw(const TRect* aRect);
1.115 + void DoBeginRedrawL(const TRect* aRect);
1.116 + void SubtractRectFromSegmentArray(const TRect& aRect);
1.117 + void EndRedraw();
1.118 + void ValidateRect(const TRect *aRect);
1.119 + void StoreDrawCommandL(CWsGc* aGc,const TAny *aCmdData);
1.120 + void AppendCommandL(const TAny* aCmdData, const TUint16 aOpcodeFlags = 0);
1.121 + void StoreAllGcAttributesL(CWsGc* aGc);
1.122 + void DrawCommandsL();
1.123 + void DiscardStoredCommands();
1.124 + TBool DiscardSegmentsOutsideViewport();
1.125 + inline TBool NoBuffer() const;
1.126 + void DiscardStoredCommandsIfError(TInt aError);
1.127 + inline TBool IsFbsBitmapOperation(TInt aOpCode) const;
1.128 + inline TBool IsWsBitmapOperation(TInt aOpCode) const;
1.129 + inline TBool IsRemoteReadRequired(TInt aOpCode) const;
1.130 + inline TBool IsWsFontOperation(TInt aOpCode) const;
1.131 + inline TBool IsDrawWsGraphicOperation(TInt aOpCode) const;
1.132 + inline TBool IsWsDrawableSourceOperation(TInt aOpCode) const;
1.133 + void ReplaceAndAppendCommandL(TInt aOpcode,const TAny* aCmdData);
1.134 + // CRedrawSegment related methods
1.135 + inline TInt CurrentCommandBufferWritePos() const;
1.136 + inline CBufSeg* CurrentDrawCommandBuffer() const;
1.137 + void ExpandCommandBufferL(TInt aLength);
1.138 + void CommandBufferWrite(const TDesC8& aDes, TInt aLength);
1.139 + void CommandBufferWrite(const TAny* aPtr,TInt aLength);
1.140 + void CreateNewSegmentL(const TRect& aRect, TRedrawSegmentType aRegionType);
1.141 + inline TBool InRedraw() const;
1.142 + void PromotePendingSegment();
1.143 + void Lock();
1.144 + void Unlock();
1.145 + void ReleaseRedrawSegments();
1.146 +private:
1.147 + static TBool iAtomic;
1.148 + RPointerArray<CFbsBitmapRef> iFbsBitmapRefArray;
1.149 +private:
1.150 + class CRedrawSegment : public CBase
1.151 + {
1.152 + public:
1.153 + static CRedrawSegment* NewLC(const TRect& aRect, TRedrawSegmentType aNewRegionType, CWsRedrawMsgWindow& aRedraw);
1.154 + ~CRedrawSegment();
1.155 + void AddWsBitmapL(DWsBitmap* bitmap);
1.156 + void AddWsDrawableSourceL(CWsDrawableSource* aDrawableSource);
1.157 + void AddDrawerL(TGraphicDrawerId aDrawerId);
1.158 + TBool ContainsDrawers(const TArray<TGraphicDrawerId>& aDrawers,const TRegion& aRegion) const;
1.159 + TInt SizeInBytes() const;
1.160 + TBool AppendNonDuplicateBitmapHandleL(TInt aHandle);
1.161 + private:
1.162 + CRedrawSegment(CWsRedrawMsgWindow& aRedraw);
1.163 + void ConstructL(const TRect& aRect, TRedrawSegmentType aNewRegionType);
1.164 + void ReleaseFontsBitmapsDrawableSources();
1.165 + public:
1.166 + TRedrawSegmentType iRedrawSegmentType;
1.167 + CBufSeg* iDrawCommands;
1.168 + TInt iCurrentCommandBufferWritePos;
1.169 + RWsRegion iRegion;
1.170 + RPointerArray<DWsBitmap> iWsBitmapArray;
1.171 + RPointerArray<CWsFbsFont> iWsFontArray;
1.172 + RArray<TGraphicDrawerId> iDrawerArray;
1.173 + RPointerArray<CWsDrawableSource> iWsDrawableSourceArray;
1.174 + TTime iCreationTime;
1.175 + private:
1.176 + CWsRedrawMsgWindow& iRedraw;
1.177 + RArray<TInt> iBitmapHandleArray;
1.178 + };
1.179 + RWsRegion iInvalid; // Region we haven't been sent a begin redraw for.
1.180 + TRect iRedrawRect;
1.181 + TRgb iBackColor;
1.182 + TInt iFlags;
1.183 + // Regions currently in use for drawing this window:
1.184 + RPointerArray<CRedrawSegment> iRedrawSegments;
1.185 + // The segment we are currently storing to. This is allowed to be null!
1.186 + CRedrawSegment * iCurrentSegment;
1.187 + // The last GC we drew with so we can detect changes
1.188 + CWsGc* iLastDrawGc;
1.189 + // During a scheduled draw, this is the area being drawn to (see comments on ReadRegion)
1.190 + RWsRegion iLocalRedrawRegion;
1.191 + TInt iMemoryLock;
1.192 + TBool iOSBStatus;
1.193 + };
1.194 +
1.195 +inline TBool CWsRedrawMsgWindow::IsRemoteReadRequired(TInt aOpCode) const
1.196 + {
1.197 + return (aOpCode==EWsGcOpDrawTextPtr || aOpCode==EWsGcOpDrawTextVerticalPtr ||
1.198 + aOpCode==EWsGcOpDrawBoxTextPtr || aOpCode==EWsGcOpDrawBoxTextVerticalPtr);
1.199 + }
1.200 +
1.201 +inline TInt CWsRedrawMsgWindow::CurrentCommandBufferWritePos() const
1.202 + {
1.203 + WS_ASSERT_DEBUG(iCurrentSegment, EWsPanicDrawCommandsInvalidState);
1.204 + return iCurrentSegment->iCurrentCommandBufferWritePos;
1.205 + }
1.206 +
1.207 +inline CBufSeg* CWsRedrawMsgWindow::CurrentDrawCommandBuffer() const
1.208 + {
1.209 + WS_ASSERT_DEBUG(iCurrentSegment, EWsPanicDrawCommandsInvalidState);
1.210 + return iCurrentSegment->iDrawCommands;
1.211 + }
1.212 +
1.213 +inline TBool CWsRedrawMsgWindow::InRedraw() const
1.214 + {
1.215 + return iFlags&EBeginEndRedraw;
1.216 + }
1.217 +
1.218 +inline TInt CFbsBitmapRef::RefCount() const
1.219 + {
1.220 + return iRefCount;
1.221 + }
1.222 +
1.223 +inline void CFbsBitmapRef::IncRefCount()
1.224 + {
1.225 + ++iRefCount;
1.226 + }
1.227 +
1.228 +inline void CFbsBitmapRef::DecRefCount()
1.229 + {
1.230 + WS_ASSERT_DEBUG(iRefCount>0,EWsPanicCounterValue);
1.231 + --iRefCount;
1.232 + }
1.233 +
1.234 +#endif