/*

* Copyright (c) 2005 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 COLLISION_H

#define COLLISION_H

#include <gdi.h>

class TAcceleratedBitmapInfo;

class TLcdTransform;

class TRect;

enum TDisplayModeBit

{

    ENoneBit        = (1<<ENone),

    EGray2Bit       = (1<<EGray2),

    EGray256Bit     = (1<<EGray256),

    EColor64KBit    = (1<<EColor64K),

    EColor4KBit     = (1<<EColor4K),

    EColor16MUBit   = (1<<EColor16MU),

    EColor16MABit   = (1<<EColor16MA)

};

enum TTransparencyBit

{

    ETransparencyNoneBit        = 1<<ETransparencyNone,

    ETransparencyMaskBitmapBit  = 1<<ETransparencyMaskBitmap,

    ETransparencyAlphaBitmapBit = 1<<ETransparencyAlphaBitmap,

    ETransparencyAlphaChannelBit= 1<<ETransparencyAlphaChannel,

    ETransparencyMaskChannelBit = 1<<ETransparencyMaskChannel,

};

// Display modes currently supported by GenericDetectCollision

const TUint KGenericModesMask = ENoneBit

                                | EGray2Bit

                                | EGray256Bit

                                | EColor64KBit

                                | EColor4KBit

                                | EColor16MUBit

                                | EColor16MABit;

// Transparency types currently supported by GenericDetectCollision

const TUint KGenericTransMask = ETransparencyNoneBit

                                | ETransparencyMaskBitmapBit

                                | ETransparencyAlphaBitmapBit;

TBool IsOpaque(TDisplayMode aDisplayMode, TUint8* aAddress, TInt aLinePitch , TInt aX, TInt aY);

TBool GenericDetectCollision

(

    const TAcceleratedBitmapInfo*   aBitmap1,

    const TAcceleratedBitmapInfo*   aBitmap2,

    const TRect&                    aRect1,

    const TRect&                    aRect2,

    const TLcdTransform&            aTransform1,

    const TLcdTransform&            aTransform2

);

TBool DetectCollisionGray2Gray2

(

    const TAcceleratedBitmapInfo*   aGray2Bitmap1,

    const TAcceleratedBitmapInfo*   aGray2Bitmap2,

    const TRect&                    aRect1,

    const TRect&                    aRect2,

    const TLcdTransform&            aTransform1,

    const TLcdTransform&            aTransform2

);

TBool DetectCollisionGray256Gray256

(

    const TAcceleratedBitmapInfo*   aGray256Bitmap1,

    const TAcceleratedBitmapInfo*   aGray256Bitmap2,

    const TRect&                    aRect1,

    const TRect&                    aRect2,

    const TLcdTransform&            aTransform1,

    const TLcdTransform&            aTransform2

);

TBool DetectCollisionGray2Gray256

(

    const TAcceleratedBitmapInfo*   aGray2Bitmap1,

    const TAcceleratedBitmapInfo*   aGray256Bitmap2,

    const TRect&                    aRect1,

    const TRect&                    aRect2,

    const TLcdTransform&            aTransform1,

    const TLcdTransform&            aTransform2

);

TBool DetectCollisionGray256Gray2

(

    const TAcceleratedBitmapInfo*   aGray256Bitmap1,

    const TAcceleratedBitmapInfo*   aGray2Bitmap2,

    const TRect&                    aRect1,

    const TRect&                    aRect2,

    const TLcdTransform&            aTransform1,

    const TLcdTransform&            aTransform2

);

TBool HasOpaquePixel

(

    const TAcceleratedBitmapInfo*   aBitmap,

    const TRect&                    aRect

);

TBool HasOpaquePixelGray2

(

    const TAcceleratedBitmapInfo*   aGray2Bitmap,

    const TRect&                    aRect

);

TBool HasOpaquePixelGray256

(

    const TAcceleratedBitmapInfo*   aGray256Bitmap,

    const TRect&                    aRect

);

#endif // COLLISION_H