/* Copyright (c) 2009 The Khronos Group Inc.

 *

 * Permission is hereby granted, free of charge, to any person obtaining a

 * copy of this software and/or associated documentation files (the

 * "Materials"), to deal in the Materials without restriction, including

 * without limitation the rights to use, copy, modify, merge, publish,

 * distribute, sublicense, and/or sell copies of the Materials, and to

 * permit persons to whom the Materials are furnished to do so, subject to

 * the following conditions:

 *

 * The above copyright notice and this permission notice shall be included

 * in all copies or substantial portions of the Materials.

 *

 * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY

 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

 * MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.

 */

#ifndef OWFDISPLAYCONTEXT_H

#define OWFDISPLAYCONTEXT_H

#include <e32base.h>

#include <dispchannel.h>

#include "owfmemory.h"

#include "owfscreen.h"

#include "owfdisplaycontextgeneral.h"

#define _OWF_DISPLAYCONTEXT(x)          (static_cast<OWFDisplayContext *>(x))

struct TBufferAddress

    {

    RChunk  iChunk;

    TInt    iOffset;

    TUint8* iAddress;

    };

/**

Container that allocates and destroys the chunks used by the scratch buffers.

*/

class COwfScratchBuffers : public CBase

    {

public:

    void* Allocate(TInt aMinSize);

    void Destroy(void* aAddress);

    ~COwfScratchBuffers();

private:

    RArray <TBufferAddress> iBuffers;

    };

class COWFScreenDisplayInfo : public CBase

    {

public:

    ~COWFScreenDisplayInfo();

    static COWFScreenDisplayInfo* NewL(TInt aScreen);

    TInt ScreenNumber() const;

    void GetScreenInfo(OWF_SCREEN *header) const;

    OWFboolean Blit(void* buffer, OWF_ROTATION rotation);

private:

    COWFScreenDisplayInfo(TInt aScreen);

    void ConstructL();

private:

    OWF_SCREEN iScreenInfo;

    mutable RDisplayChannel iDispChan;

    TInt iScreenNumber;

    RArray <TBufferAddress*> iCompositionBuffer;

    RDisplayChannel::TDisplayRotation iDefaultRotation;

    TInt iRotationOffset;

    };

class COwfcDisplayDevice : public CBase

    {

private:

    static COwfcDisplayDevice* gDisplayDeviceInstancePtr;

public:

    static COwfcDisplayDevice* SingletonInstance();

    TInt OpenScreen(TInt aScreen);

    TInt CloseScreen(TInt aScreen, OWFboolean *aCanDelete);

    ~COwfcDisplayDevice();

public:

    static TBool ScreenCompare(const TInt* k, COWFScreenDisplayInfo* const & t)

    {return (*k == t->ScreenNumber());}

    RArray <COWFScreenDisplayInfo*> iScreenDisplayInfo;

    };

typedef struct OWFDisplayContext_

    {

public:

    COwfcDisplayDevice *iDisplayContext;

    COwfScratchBuffers iBuffers;

    WFCint iEventServerUpdate;

    WFCboolean iCompositionOngoing;

    WFCint iPreviousCommit;

    WFCint iSerialNumber;

public:

    virtual ~OWFDisplayContext_();

    } OWFDisplayContext;

#endif //OWFDISPLAYCONTEXT_H