#ifndef __RICONTEXT_H

#define __RICONTEXT_H

/*------------------------------------------------------------------------

 *

 * OpenVG 1.1 Reference Implementation

 * -----------------------------------

 *

 * Copyright (c) 2007 The Khronos Group Inc.

 * Portions 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.

 *

 *//**

 * \file

 * \brief	VGContext class. Used for storing OpenVG state.

 * \note

 *//*-------------------------------------------------------------------*/

#ifndef OPENVG_H

#endif

#ifndef __RIDEFS_H

#include "riDefs.h"

#endif

#ifndef __RIMATH_H

#include "riMath.h"

#endif

#ifndef __RIIMAGE_H

#include "riImage.h"

#endif

#ifndef __RIPATH_H

#include "riPath.h"

#endif

#ifndef __RIFONT_H

#include "riFont.h"

#endif

#ifndef __RIARRAY_H

#include "riArray.h"

#endif

#ifndef __SFDYNAMICBLITTER_H

#   include "sfDynamicBlitter.h"

#endif

//==============================================================================================

namespace OpenVGRI

{

class VGContext;

/*-------------------------------------------------------------------*//*!

* \brief	A list of resources (Images, Paths, or Paints) shared by a

*			set of contexts.

* \param

* \return

* \note

*//*-------------------------------------------------------------------*/

template <class Resource> class ResourceManager

{

public:

    ResourceManager() :

        m_referenceCount(0),

        m_resources()

    {

    }

    ~ResourceManager()

    {

        RI_ASSERT(m_referenceCount == 0);

        RI_ASSERT(m_resources.size() == 0);

    }

    void			addReference()

    {

        m_referenceCount++;

    }

    int				removeReference()

    {

        m_referenceCount--;

        RI_ASSERT(m_referenceCount >= 0);

        return m_referenceCount;

    }

    void			addResource(Resource* resource, VGContext* context)

    {

        Entry r;

        r.resource = resource;

        r.context = context;

        m_resources.push_back(r);	//throws bad_alloc

        resource->addReference();

    }

    void			removeResource(Resource* resource)

    {

        if(!resource->removeReference())

            RI_DELETE(resource);

        int i=0;

        bool found = false;

        for(;i<m_resources.size();i++)

        {

            if(m_resources[i].resource == resource)

            {

                found = true;

                break;

            }

        }

        RI_ASSERT(found);

        for(;i<m_resources.size()-1;i++)

        {

            m_resources[i] = m_resources[i+1];

        }

        m_resources.resize(m_resources.size()-1);

    }

    bool			isValid(Resource* resource)

    {

        for(int i=0;i<m_resources.size();i++)

        {

            if(m_resources[i].resource == resource)

                return true;

        }

        return false;

    }

    Resource*		getFirstResource(VGContext* context)

    {

        for(int i=0;i<m_resources.size();i++)

        {

            if(m_resources[i].context == context)

                return m_resources[i].resource;

        }

        return NULL;

    }

private:

    ResourceManager(const ResourceManager&);

    ResourceManager operator=(const ResourceManager&);

    struct Entry

    {

        Resource*	resource;

        VGContext*	context;

    };

    int				m_referenceCount;

    Array<Entry>	m_resources;

};

/*-------------------------------------------------------------------*//*!

* \brief

* \param

* \return

* \note

*//*-------------------------------------------------------------------*/

class VGContext

{

public:

    VGContext(VGContext* shareContext);	//throws bad_alloc

    ~VGContext();

    void            setDefaultDrawable(Drawable* drawable); //called from EGL

    Drawable*       getCurrentDrawable()        { return m_eglDrawable; }

    DynamicBlitter& getBlitter() { return m_blitter; }

    bool			isValidImage(VGImage image);

    bool			isValidPath(VGPath path);

    bool			isValidPaint(VGPaint paint);

    bool			isValidFont(VGFont font);

    bool			isValidMaskLayer(VGMaskLayer layer);

    void			releasePaint(VGbitfield paintModes);

    void			setError(VGErrorCode error)		{ if(m_error == VG_NO_ERROR) m_error = error; }

    // Mode settings

    VGMatrixMode					m_matrixMode;

    VGFillRule						m_fillRule;

    VGImageQuality					m_imageQuality;

    VGRenderingQuality				m_renderingQuality;

    VGBlendMode						m_blendMode;

    VGImageMode						m_imageMode;

    // Scissor rectangles

    Array<Rectangle>				m_scissor;

    // Stroke parameters

    RIfloat							m_strokeLineWidth;

    RIfloat							m_inputStrokeLineWidth;

    VGCapStyle						m_strokeCapStyle;

    VGJoinStyle						m_strokeJoinStyle;

    RIfloat							m_strokeMiterLimit;

    RIfloat							m_inputStrokeMiterLimit;

    Array<RIfloat>					m_strokeDashPattern;

    Array<RIfloat>					m_inputStrokeDashPattern;

    RIfloat							m_strokeDashPhase;

    RIfloat							m_inputStrokeDashPhase;

    VGboolean						m_strokeDashPhaseReset;

    // Edge fill color for vgConvolve and pattern paint

    Color							m_tileFillColor;

    Color							m_inputTileFillColor;

    // Color for vgClear

    Color							m_clearColor;

    Color							m_inputClearColor;

    Vector2                         m_glyphOrigin;

    Vector2                         m_inputGlyphOrigin;

    VGboolean						m_masking;

    VGboolean						m_scissoring;

    VGPixelLayout					m_pixelLayout;

    VGboolean						m_filterFormatLinear;

    VGboolean						m_filterFormatPremultiplied;

    VGbitfield						m_filterChannelMask;

    // Matrices

    Matrix3x3						m_pathUserToSurface;

    Matrix3x3						m_imageUserToSurface;

    Matrix3x3						m_glyphUserToSurface;

    Matrix3x3						m_fillPaintToUser;

    Matrix3x3						m_strokePaintToUser;

    VGPaint							m_fillPaint;

    VGPaint							m_strokePaint;

    VGboolean                       m_colorTransform;

    RIfloat                         m_colorTransformValues[8];

    RIuint32                        m_iColorTransformValues[8];

    RIfloat                         m_inputColorTransformValues[8];

    VGErrorCode						m_error;

    ResourceManager<Image>*			m_imageManager;

    ResourceManager<Path>*			m_pathManager;

    ResourceManager<Paint>*			m_paintManager;

    ResourceManager<Font>*			m_fontManager;

    ResourceManager<Surface>*		m_maskLayerManager;

    Rasterizer                      m_rasterizer;

    PixelPipe                       m_pixelPipe;

    DynamicBlitter                  m_blitter;

private:

    Drawable*                       m_eglDrawable;

    VGContext(const VGContext&);			//!< Not allowed.

    void operator=(const VGContext&);		//!< Not allowed.

};

//==============================================================================================

}	//namespace OpenVGRI

//==============================================================================================

#endif /* __RICONTEXT_H */