author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 31 Aug 2010 16:19:03 +0300 | |
branch | RCL_3 |
changeset 14 | 2b9ddd958b2b |
parent 0 | cec860690d41 |
child 15 | be079f63985a |
permissions | -rw-r--r-- |
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// Copyright (c) 2007-2009 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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/** |
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@file |
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@publishedPartner |
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@deprecated Emulator Deprecated |
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*/ |
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#ifndef __DISPLAY_CHAN_H__ |
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#define __DISPLAY_CHAN_H__ |
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#include "nk_priv.h" |
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#include <dispchannel.h> |
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#include <videodriver.h> |
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#include "displayhandler.h" |
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struct TBufferAddressA; |
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class TScreenBuffer; |
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/** |
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Logical Channel kernel side class for Display |
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*/ |
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class DDisplayChannel : public DLogicalChannel |
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{ |
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public: |
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// constants |
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enum { KDisplayChMajorVersionNumber = 1 }; |
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enum { KDisplayChMinorVersionNumber = 2 }; |
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enum { KDisplayChBuildVersionNumber = 1 }; |
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public: |
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// Duplicate of RDisplayChannel structure, as the header file cannot be used. |
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class TCaps |
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{ |
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public: |
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TVersion iVersion; |
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}; |
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class TRequest |
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{ |
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public: |
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inline TRequest(void) : iThread(0), iStatus(0) {} |
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TBool SetStatus(TThreadMessage& aMsg); |
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void Complete(TInt aResult); |
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public: |
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DThread* iThread; |
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TRequestStatus* iStatus; |
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}; |
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class TBufferInfo |
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{ |
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public: |
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TAny* iAddress; |
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DChunk* iChunk; |
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TRequest iRequest; |
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}; |
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enum TDisplayPanic |
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{ |
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EDisplayPanicNullThreadOnSet = 1, |
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EDisplayPanicInUse = 2, |
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EDisplayPanicThreadAlreadySet = 3, |
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EDisplayPanicNullThreadOnComplete = 4, |
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EDisplayPanicThreadOpenFailed = 5, |
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EDisplayPanicWaitForPostMissed = 6, |
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EDisplayPanicNullArgument = 7, |
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EDisplayPanicNotYetImplemented = 8, |
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EDisplayPanicInvalidDimensions = 9, |
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EDisplayPanicInvalidRotation = 10, |
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EDisplayPanicInvalidBitDepth = 11, |
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EDisplayPanicInvalidStride = 12, |
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EDisplayPanicInvalidWindowHandle = 13, |
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EDisplayPanicInvalidFrameBuffers = 14, |
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EDisplayPanicInvalidRefreshRate = 15, |
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EDisplayPanicInvalidOffset = 16, |
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EDisplayPanicNoLegacyBuffer = 17 |
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}; |
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public: |
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DDisplayChannel(void); |
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~DDisplayChannel(void); |
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// DLogicalChannel implementation |
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virtual TInt DoCreate(TInt aUnit, const TDesC8* aInfo, const TVersion& aVer); |
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virtual void HandleMsg(TMessageBase* aMsg); |
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// Function used by the UI code to set up the buffers. |
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virtual TInt Initialize(RDisplayChannel::TDisplayInfo& aInfo, |
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RDisplayChannel::TDisplayRotation aRotation, |
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HWND aHwnd, RPointerArray<TAny>& aFrameBuffers, |
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RPointerArray<TBufferAddressA>& aChunks, |
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TScreenBuffer& aDsaBuffer, |
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TSize aResolution, |
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TSize aTwips, |
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const RDisplayChannel::TPixelFormat aPixelFormatArray[], |
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const TInt aPixelFormatArraySize, |
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const RDisplayChannel::TBufferFormat& aBufferFormat); |
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virtual void SetLegacyBuffer(void *aAddress); |
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112 |
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113 |
private: |
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DDisplayChannel(const DDisplayChannel&); |
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115 |
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// Handlers for the three classes of channel message sent |
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TInt DoControl(TInt aFunction); |
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void DoRequest(TInt aFunction); |
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TInt DoCancel(TInt aRequestMask); |
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TInt NumberOfResolutions(); |
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TInt SafePut(TAny* aDst, TAny* aSrc, TInt aBytes); |
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122 |
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void ValidateSpecificInfo(TInt aBytesPerPixel, RDisplayChannel::TOrientationSpecificInfo& aInfo); |
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static void Panic(TDisplayPanic aPanic); |
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void ClientPanic(RDisplayChannel::TPanic aPanic); |
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126 |
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inline TBool IsCompositionBuffer(RDisplayChannel::TBufferId aId); |
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static inline TBool IsLegacyBuffer(RDisplayChannel::TBufferId aId); |
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static inline TBool IsUserBuffer(RDisplayChannel::TBufferId aId); |
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inline TBool IsValidBuffer(RDisplayChannel::TBufferId aId); |
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inline RDisplayChannel::TBufferId NextCompositionBuffer(RDisplayChannel::TBufferId aId); |
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132 |
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static inline TBool IsFlipped(RDisplayChannel::TDisplayRotation aRotation); |
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134 |
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static void VSyncTimerFn(TAny* aDisplayChannel); |
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void DoVSyncTimer(void); |
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static void VSyncDfcFn(TAny* aDisplayChannel); |
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void DoVSync(void); |
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139 |
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TInt PostCompositionBuffer(TAny* aRegion, RDisplayChannel::TPostCount* aPostCount); |
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TInt PostLegacyBuffer(TAny* aRegion, RDisplayChannel::TPostCount* aPostCount); |
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TInt GetCompositionBuffer(TAny** aAddress); |
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TInt PostUserBuffer(RDisplayChannel::TBufferId* aBufferId, TAny* aRegion, RDisplayChannel::TPostCount* aPostCount); |
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TInt WaitForPost(RDisplayChannel::TPostCount* aPostCount); |
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TInt WaitForDisplayConnect(); |
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TInt SetRotation(RDisplayChannel::TDisplayRotation* aNewRotation, TBool* aIsBufferPreserved); |
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TInt RegisterUserBuffer(TInt aChunkHandle, TInt aOffset, RDisplayChannel::TBufferId* aBufferId); |
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TInt DeregisterUserBuffer(RDisplayChannel::TBufferId* aBufferId); |
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TInt GetResolutions(); |
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TInt SetResolution(TSize* aSize); |
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TInt GetResolution(TSize* aSize); |
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TInt GetTwips(TSize* aSize); |
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TInt GetIndexForSize(const TSize& aSize,TInt& aSpinnerOut); |
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TInt GetPixelFormats(); |
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TInt SetBufferFormat(RDisplayChannel::TBufferFormat* aBufferFormat); |
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TInt NextPlaneOffset(RDisplayChannel::TBufferFormat* aBufferFormat, |
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RDisplayChannel::TBufferFormatContext* aContext); |
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TInt NextLineOffset(RDisplayChannel::TBufferFormat* aBufferFormat, |
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RDisplayChannel::TBufferFormatContext* aContext); |
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TInt ValidateBufferFormat(const RDisplayChannel::TBufferFormat& aBufferFormat, |
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const RDisplayChannel::TResolution& aResolution); |
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private: |
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// Constants |
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enum {KDfcPriority = 6}; |
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165 |
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enum {KBufferNotSet = -1}; |
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167 |
|
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// Buffer index points. The legacy buffer is first, followed by the user |
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// buffers, followed by a variable number of composition buffers. |
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enum { KLegacyBuffer = 0}; |
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enum { KFirstUserBuffer = KLegacyBuffer + 1}; |
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enum { KFirstCompositionBuffer = KFirstUserBuffer + RDisplayChannel::TDisplayInfo::KMaxUserBuffers}; |
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enum { KMaxBufferSizeHeightAndWidth = KMaxTInt16 }; |
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174 |
|
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private: |
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TInt iScreenNumber; |
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TThreadMessage* iMsg; |
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TInt iVSyncTicks; // Number of nanokernel ticks between frames |
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TUint iNumCompositionBuffers; // Number of composition buffers |
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TUint iTotalBuffers; // KFirstCompositionBuffer + iNumCompositionBuffers |
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RDisplayChannel::TDisplayInfo iChannelInfo; |
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RDisplayChannel::TPostCount iPostCount; // Count of Post... calls |
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RDisplayChannel::TPostCount iLastPostCount; // Value of iPostCount when last buffer was actually posted |
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TBufferInfo* iBuffer; // Allocated to contain iTotalBuffers |
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TBufferAddressA* iChunks; |
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DThread* iClient; |
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187 |
|
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// Posting support |
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NTimer iVSync; // Emulated VSync signal using a timer |
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TDfc iVSyncDfc; // DFC queued on DfcQue0 when iVSync triggers |
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RDisplayChannel::TBufferId iPostedBuffer; // Index of buffer to be posted on next frame |
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RDisplayChannel::TDisplayRotation iCurrentRotation; // Rotation of buffer being posted |
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RDisplayChannel::TDisplayRotation iNewRotation; // Rotation of buffer being posted |
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TSize iCurrentResolution; // Display resolution (normal rotation) to be posted |
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TSize iNewResolution; // Display resolution (normal rotation) for buffer being posted |
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TSize iCurrentTwips; |
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TInt iPostedRectCount; // Number of rectangles defined in region |
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RECT iPostedRect[RDisplayChannel::TDisplayInfo::KMaxRectangles]; // |
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199 |
|
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// Paint support |
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HWND iHwnd; // Window to be painted |
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RDisplayChannel::TBufferId iDisplayBuffer; // Index of buffer to be painted |
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RDisplayChannel::TDisplayRotation iDisplayRotation; // Rotation of buffer to be painted |
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TSize iDisplayResolution; // Display resolution (normal rotation) on screen |
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205 |
|
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// GetCompositionBuffer support |
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TUint iGetBuffer; // Index of next composition buffer |
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// WaitForPost support |
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RDisplayChannel::TPostCount iWaitForPost; // Post count being awaited |
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TRequest iWaitForPostRequest; // Request to complete when post count reached |
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// WaitForDisplayConnect support |
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TRequest iWaitForDisplayConnect; // Request to complete when display connection state changes |
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TInt iDisplayStateSpinner; |
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TVersion iVersion; |
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const RDisplayChannel::TPixelFormat* iPixelFormatArray; |
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TInt iPixelFormatArraySize; |
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RDisplayChannel::TBufferFormat iInitialBufferFormat; |
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RDisplayChannel::TBufferFormat iCurrentBufferFormat; |
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RDisplayChannel::TBufferFormat iDisplayBufferFormat; |
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RDisplayChannel::TBufferFormat iNewBufferFormat; |
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}; |
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inline TBool DDisplayChannel::IsCompositionBuffer(RDisplayChannel::TBufferId aId) |
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{ return (aId >= KFirstCompositionBuffer && aId < iTotalBuffers); } |
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inline TBool DDisplayChannel::IsLegacyBuffer(RDisplayChannel::TBufferId aId) |
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{ return (aId == KLegacyBuffer); } |
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inline TBool DDisplayChannel::IsUserBuffer(RDisplayChannel::TBufferId aId) |
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{ return (aId >= KFirstUserBuffer && aId < (KFirstUserBuffer + RDisplayChannel::TDisplayInfo::KMaxUserBuffers)); } |
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inline TBool DDisplayChannel::IsValidBuffer(RDisplayChannel::TBufferId aId) |
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{ return (aId >= 0 && aId < iTotalBuffers); } |
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inline RDisplayChannel::TBufferId DDisplayChannel::NextCompositionBuffer(RDisplayChannel::TBufferId aId) |
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{ TUint r = (aId + 1); return (r >= iTotalBuffers) ? KFirstCompositionBuffer : r; } |
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inline TBool DDisplayChannel::IsFlipped(RDisplayChannel::TDisplayRotation aRotation) |
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{ return !(aRotation & (RDisplayChannel::ERotationNormal | RDisplayChannel::ERotation180)); } |
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#endif |
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