/* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

 *

 * 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 _SFEGLINTERFACE_H_

#define _SFEGLINTERFACE_H_

#include "riImage.h"

#include "VGInterface.h"

// Get pointer to global interface object.

extern "C" { RI_API_CALL IEGLtoVGInterface* getVGInterface(void); }

namespace OpenVGRI 

{

    void* eglvgGetCurrentVGContext(void);

    bool  eglvgIsInUse(void* image);

	bool  eglvgLockSurface(bool read, bool write);

    bool  eglvgUnlockSurface();

	void  OSAcquireMutex(void);

	void  OSReleaseMutex(void);

    void  eglvgGetImageDescriptor( void* image, Color::Descriptor &desc, int &width, int &height, int &stride );

    void* eglvgGetImageData( void* image );

}

// Services from OpenVG to EGL

class EGLtoVGInterface : public IEGLtoVGInterface

{

public:

    EGLtoVGInterface();

    ~EGLtoVGInterface();

    void    SetEGLInterface( IVGtoEGLInterface* egl );

    void*   CreateContext( void* shareContext );

    bool    ReleaseContext( void* context );

    bool    CreateSurface( const SurfaceDescriptor* desc, BufferContainer* buffers, void* image );

    bool    ReleaseSurface(void* surface);

    bool    SetCurrentSurface( void* context, void* surface );

    bool    ResizeSurface( void* context, void* surface, int width, int height, BufferContainer* buffers );

    bool    IsValidImage( void* image, CColorDescriptor* colorDesc, int* width, int* height );

    bool    IsImageInUse( void* image );

    void*   CreateImage();

    bool    ReleaseImage();

    void    Flush();

    void    Finish();

    fpVGProc GetVGProcAddress( const char *procname );

    void    CopyBuffers( void* buffer, int stride, void* surface );

    void    UpdateBuffers( void* buffer, int stride, const SurfaceDescriptor* desc );

    bool    IsRootImage( void* buffer );

    void    GetImageData( void* image, SurfaceDescriptor& desc, void* data );

    void    AddRef( void* image );

    void    RemoveRef( void* image );

    // Methods for local OpenVG-implementation. To be called only from OpenVG internals.

    static IVGtoEGLInterface* GetEGLInterface();

    static OpenVGRI::Color::Descriptor vgDescriptorFromSurfaceDescriptor(const SurfaceDescriptor* sdesc); // \todo static

private:    

    int     findContext(OpenVGRI::VGContext* contextPtr);

    bool    isValidImage(void* image);

private:

    OpenVGRI::Array<OpenVGRI::VGContext*>   m_contexts;

    IVGtoEGLInterface*                      m_egl;

};

#endif