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#ifndef __RICONTEXT_H
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#define __RICONTEXT_H
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/*------------------------------------------------------------------------
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*
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* OpenVG 1.1 Reference Implementation
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* -----------------------------------
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*
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* Copyright (c) 2007 The Khronos Group Inc.
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* Portions copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and /or associated documentation files
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* (the "Materials "), to deal in the Materials without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Materials,
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* and to permit persons to whom the Materials are furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Materials.
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*
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* THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MATERIALS OR
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* THE USE OR OTHER DEALINGS IN THE MATERIALS.
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*
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*//**
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* \file
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* \brief VGContext class. Used for storing OpenVG state.
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* \note
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*//*-------------------------------------------------------------------*/
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#ifndef OPENVG_H
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#include "openvg.h"
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#endif
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#ifndef __RIDEFS_H
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#include "riDefs.h"
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#endif
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#ifndef __RIMATH_H
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#include "riMath.h"
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#endif
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#ifndef __RIIMAGE_H
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#include "riImage.h"
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#endif
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#ifndef __RIPATH_H
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#include "riPath.h"
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#endif
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#ifndef __RIFONT_H
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#include "riFont.h"
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#endif
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#ifndef __RIARRAY_H
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#include "riArray.h"
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#endif
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#ifndef __SFDYNAMICBLITTER_H
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# include "sfDynamicBlitter.h"
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#endif
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//==============================================================================================
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namespace OpenVGRI
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{
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class VGContext;
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/*-------------------------------------------------------------------*//*!
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* \brief A list of resources (Images, Paths, or Paints) shared by a
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* set of contexts.
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* \param
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* \return
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* \note
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*//*-------------------------------------------------------------------*/
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template <class Resource> class ResourceManager
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{
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public:
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ResourceManager() :
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m_referenceCount(0),
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m_resources()
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{
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}
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~ResourceManager()
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{
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RI_ASSERT(m_referenceCount == 0);
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RI_ASSERT(m_resources.size() == 0);
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}
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void addReference()
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{
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m_referenceCount++;
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}
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int removeReference()
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{
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m_referenceCount--;
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RI_ASSERT(m_referenceCount >= 0);
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return m_referenceCount;
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}
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void addResource(Resource* resource, VGContext* context)
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{
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Entry r;
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r.resource = resource;
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r.context = context;
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m_resources.push_back(r); //throws bad_alloc
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resource->addReference();
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}
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void removeResource(Resource* resource)
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{
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if(!resource->removeReference())
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RI_DELETE(resource);
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int i=0;
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bool found = false;
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for(;i<m_resources.size();i++)
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{
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if(m_resources[i].resource == resource)
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{
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found = true;
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break;
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}
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}
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RI_ASSERT(found);
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for(;i<m_resources.size()-1;i++)
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{
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m_resources[i] = m_resources[i+1];
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}
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m_resources.resize(m_resources.size()-1);
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}
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bool isValid(Resource* resource)
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{
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for(int i=0;i<m_resources.size();i++)
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{
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if(m_resources[i].resource == resource)
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return true;
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}
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return false;
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}
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Resource* getFirstResource(VGContext* context)
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{
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for(int i=0;i<m_resources.size();i++)
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{
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if(m_resources[i].context == context)
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return m_resources[i].resource;
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}
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return NULL;
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}
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private:
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ResourceManager(const ResourceManager&);
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ResourceManager operator=(const ResourceManager&);
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struct Entry
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{
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Resource* resource;
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VGContext* context;
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};
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int m_referenceCount;
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Array<Entry> m_resources;
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};
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/*-------------------------------------------------------------------*//*!
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* \brief
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* \param
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* \return
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* \note
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*//*-------------------------------------------------------------------*/
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class VGContext
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{
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public:
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VGContext(VGContext* shareContext); //throws bad_alloc
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~VGContext();
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void setDefaultDrawable(Drawable* drawable); //called from EGL
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Drawable* getCurrentDrawable() { return m_eglDrawable; }
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DynamicBlitter& getBlitter() { return m_blitter; }
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bool isValidImage(VGImage image);
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bool isValidPath(VGPath path);
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bool isValidPaint(VGPaint paint);
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bool isValidFont(VGFont font);
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bool isValidMaskLayer(VGMaskLayer layer);
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void releasePaint(VGbitfield paintModes);
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void setError(VGErrorCode error) { if(m_error == VG_NO_ERROR) m_error = error; }
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// Mode settings
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VGMatrixMode m_matrixMode;
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VGFillRule m_fillRule;
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VGImageQuality m_imageQuality;
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VGRenderingQuality m_renderingQuality;
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VGBlendMode m_blendMode;
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VGImageMode m_imageMode;
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// Scissor rectangles
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Array<Rectangle> m_scissor;
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// Stroke parameters
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RIfloat m_strokeLineWidth;
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RIfloat m_inputStrokeLineWidth;
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VGCapStyle m_strokeCapStyle;
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VGJoinStyle m_strokeJoinStyle;
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RIfloat m_strokeMiterLimit;
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RIfloat m_inputStrokeMiterLimit;
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Array<RIfloat> m_strokeDashPattern;
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Array<RIfloat> m_inputStrokeDashPattern;
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RIfloat m_strokeDashPhase;
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RIfloat m_inputStrokeDashPhase;
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VGboolean m_strokeDashPhaseReset;
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// Edge fill color for vgConvolve and pattern paint
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Color m_tileFillColor;
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Color m_inputTileFillColor;
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// Color for vgClear
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Color m_clearColor;
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Color m_inputClearColor;
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Vector2 m_glyphOrigin;
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Vector2 m_inputGlyphOrigin;
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VGboolean m_masking;
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VGboolean m_scissoring;
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VGPixelLayout m_pixelLayout;
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VGboolean m_filterFormatLinear;
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VGboolean m_filterFormatPremultiplied;
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VGbitfield m_filterChannelMask;
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// Matrices
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Matrix3x3 m_pathUserToSurface;
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Matrix3x3 m_imageUserToSurface;
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Matrix3x3 m_glyphUserToSurface;
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Matrix3x3 m_fillPaintToUser;
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Matrix3x3 m_strokePaintToUser;
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VGPaint m_fillPaint;
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VGPaint m_strokePaint;
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VGboolean m_colorTransform;
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RIfloat m_colorTransformValues[8];
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RIuint32 m_iColorTransformValues[8];
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RIfloat m_inputColorTransformValues[8];
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VGErrorCode m_error;
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ResourceManager<Image>* m_imageManager;
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ResourceManager<Path>* m_pathManager;
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ResourceManager<Paint>* m_paintManager;
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ResourceManager<Font>* m_fontManager;
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ResourceManager<Surface>* m_maskLayerManager;
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Rasterizer m_rasterizer;
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PixelPipe m_pixelPipe;
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DynamicBlitter m_blitter;
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private:
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Drawable* m_eglDrawable;
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VGContext(const VGContext&); //!< Not allowed.
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void operator=(const VGContext&); //!< Not allowed.
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};
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//==============================================================================================
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} //namespace OpenVGRI
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//==============================================================================================
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#endif /* __RICONTEXT_H */
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