graphicsdeviceinterface/screendriver/swins/SCDRAW.H
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).

// Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
// All rights reserved.
// This component and the accompanying materials are made available
// under the terms of "Eclipse Public License v1.0"
// which accompanies this distribution, and is available
// at the URL "http://www.eclipse.org/legal/epl-v10.html".
//
// Initial Contributors:
// Nokia Corporation - initial contribution.
//
// Contributors:
//
// Description:
//

#ifndef __SCDRAW_H__
#define __SCDRAW_H__

#include <e32svr.h>
#include <e32wins.h>

#if defined(SYMBIAN_GRAPHICS_GCE)
#include <graphics/surfaceupdateclient.h>
#include <bitdrawsurface.h>
#endif //SYMBIAN_GRAPHICS_GCE

#include "BMDRAW.H"
#include "_WININC.H"

/**
@internalComponent
*/
template <class T>
class CScreenDevice : public T
	{
public:
	TInt ConstructScreen(TInt aScreenNo, TAny* aHwnd,const TSize& aSize);
protected:
	virtual ~CScreenDevice();
	void SetScreenOrientation(TInt aOrientation);
	TUint8* WinPixelAddress(TInt aX,TInt aY) const;
private:
	// From CFbsDrawDevice
	virtual TInt HorzTwipsPerThousandPixels() const;
	virtual TInt VertTwipsPerThousandPixels() const;
	virtual void OrientationsAvailable(TBool aOrientation[4]);
	virtual void SetAutoUpdate(TBool aAutoUpdate);
	virtual void SetDisplayMode(CFbsDrawDevice* aDrawDevice);
	virtual void Update();
	virtual void Update(const TRegion& aUpdateRegion);
	virtual void UpdateRegion(const TRect& aRect);
	virtual void UpdateScreen(const TRegion& aRegion);
	// New functions
	virtual void UpdateRect(const TRect& aRect) const = 0;
protected:
	CFbsDrawDevice::TOrientation iEmulatorOrientation;
    TInt iScreenNo;
private:
	RWindows* iWindow;
	RSemaphore iWindowInUse;
	TBool iAutoUpdate;
	RRegion iUpdateRegion;
#if defined(SYMBIAN_GRAPHICS_GCE)
	RSurfaceUpdateSession iSurfaceUpdateSession;
	TInt iSurfaceUpdateError;
#endif //SYMBIAN_GRAPHICS_GCE
	};

#include "SCDRAW.INL"	// implementation of CScreenDevice<>

/**
@internalComponent
*/
class CDrawOneBppScreenBitmap : public CScreenDevice<CDrawOneBppBitmap>
	{
private:
	// From CFbsDrawDevice
	void OrientationsAvailable(TBool aOrientation[4]);
	//virtual function from CScreenDevice
	void UpdateRect(const TRect& aRect) const;
	//new functions
	virtual TInt InitScreen();
	};

/**
@internalComponent
*/
class CDrawTwoBppScreenBitmap : public CScreenDevice<CDrawTwoBppBitmap>
	{
private:
	// From CFbsDrawDevice
	void OrientationsAvailable(TBool aOrientation[4]);
	//virtual function from CScreenDevice
	void UpdateRect(const TRect& aRect) const;
	//new functions
	virtual TInt InitScreen();
	};

/**
@internalComponent
*/
class CDrawFourBppScreenBitmapGray : public CScreenDevice<CDrawFourBppBitmapGray>
	{
private:
	// From CFbsDrawDevice
	void OrientationsAvailable(TBool aOrientation[4]);
	//virtual function from CScreenDevice
	void UpdateRect(const TRect& aRect) const;
	//new functions
	virtual TInt InitScreen();
	};

/**
@internalComponent
*/
class CDrawFourBppScreenBitmapColor : public CScreenDevice<CDrawFourBppBitmapColor>
	{
private:
	// From CFbsDrawDevice
	void OrientationsAvailable(TBool aOrientation[4]);
	//virtual function from CScreenDevice
	void UpdateRect(const TRect& aRect) const;
	//new functions
	virtual TInt InitScreen();
	};

/**
@internalComponent
*/
class CDrawEightBppScreenBitmapGray : public CScreenDevice<CDrawEightBppBitmapGray>
	{
private:
	//virtual function from CDrawBitmap
	TBool SetOrientation(TOrientation aOrientation);
	//virtual function from CScreenDevice
	void UpdateRect(const TRect& aRect) const;
	//new functions
	virtual TInt InitScreen();
	};

/**
@internalComponent
*/
class CDrawEightBppScreenBitmapColor : public CScreenDevice<CDrawEightBppBitmapColor>
	{
private:
	//virtual function from CDrawEightBppBitmapColor
	TInt SetCustomPalette(const CPalette* aPalette);
	//virtual function from CDrawBitmap
	TBool SetOrientation(TOrientation aOrientation);
	//virtual function from CScreenDevice
	void UpdateRect(const TRect& aRect) const;
	//new functions
	virtual TInt InitScreen();
	};

/**
@internalComponent
*/
class CDrawTwelveBppScreenBitmap : public CScreenDevice<CDrawTwelveBppBitmap>
	{
private:
	//virtual function from CDrawBitmap
	TBool SetOrientation(TOrientation aOrientation);
	//virtual function from CScreenDevice
	void UpdateRect(const TRect& aRect) const;
	//new functions
	virtual TInt InitScreen();
	};

/**
@internalComponent
*/
class CDrawSixteenBppScreenBitmap : public CScreenDevice<CDrawSixteenBppBitmap>
	{
private:
	//virtual function from CDrawBitmap
	TBool SetOrientation(TOrientation aOrientation);
	//virtual function from CScreenDevice
	void UpdateRect(const TRect& aRect) const;
	//new functions
	virtual TInt InitScreen();
	};

/**
@internalComponent
*/
class CDrawTwentyFourBppScreenBitmap : public CScreenDevice<CDrawTwentyFourBppBitmap>
	{
private:
	//virtual function from CDrawBitmap
	TBool SetOrientation(TOrientation aOrientation);
	//virtual function from CScreenDevice
	void UpdateRect(const TRect& aRect) const;
	//new functions
	virtual TInt InitScreen();
	};

/**
@internalComponent
*/
class CDrawUTwentyFourBppScreenBitmap : public CScreenDevice<CDrawUTwentyFourBppBitmap>
	{
private:
	//virtual function from CDrawBitmap
	TBool SetOrientation(TOrientation aOrientation);
	//virtual function from CScreenDevice
	void UpdateRect(const TRect& aRect) const;
	//new functions
	virtual TInt InitScreen();
	};

/**
@internalComponent
*/
class CDrawThirtyTwoBppScreenBitmapAlpha : public CScreenDevice<CDrawThirtyTwoBppBitmapAlpha>
	{
private:
	//virtual function from CDrawBitmap
	TBool SetOrientation(TOrientation aOrientation);
	//virtual function from CScreenDevice
	void UpdateRect(const TRect& aRect) const;
	//new functions
	virtual TInt InitScreen();
	};

/**
@internalComponent
*/
class CDrawThirtyTwoBppScreenBitmapAlphaPM : public CScreenDevice<CDrawThirtyTwoBppBitmapAlphaPM>
	{
private:
	//virtual function from CDrawBitmap
	TBool SetOrientation(TOrientation aOrientation);
	//virtual function from CScreenDevice
	void UpdateRect(const TRect& aRect) const;
	//new functions
	virtual TInt InitScreen();
	};

#endif	//__SCDRAW_H__