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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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*
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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 Implementation of Font class.
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* \note
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*//*-------------------------------------------------------------------*/
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#include "riFont.h"
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//==============================================================================================
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namespace OpenVGRI
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{
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/*-------------------------------------------------------------------*//*!
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* \brief Font constructor.
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* \param
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* \return
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* \note
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*//*-------------------------------------------------------------------*/
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Font::Font(int capacityHint) :
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m_referenceCount(0),
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m_glyphs()
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{
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RI_ASSERT(capacityHint >= 0);
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m_glyphs.reserve(capacityHint);
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}
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/*-------------------------------------------------------------------*//*!
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* \brief Font destructor.
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* \param
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* \return
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* \note
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*//*-------------------------------------------------------------------*/
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Font::~Font()
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{
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//remove references to paths and images
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for(int i=0;i<m_glyphs.size();i++)
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clearGlyph(&m_glyphs[i]);
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RI_ASSERT(m_referenceCount == 0);
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}
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/*-------------------------------------------------------------------*//*!
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* \brief Find a glyph based on glyphIndex.
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* \param
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* \return
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* \note
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*//*-------------------------------------------------------------------*/
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Font::Glyph* Font::findGlyph(unsigned int index)
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{
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for(int i=0;i<m_glyphs.size();i++)
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{
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if(m_glyphs[i].m_state != Glyph::GLYPH_UNINITIALIZED && m_glyphs[i].m_index == index)
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return &m_glyphs[i];
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}
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return NULL;
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}
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/*-------------------------------------------------------------------*//*!
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* \brief Find a free glyph or allocate a new one.
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* \param
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* \return
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* \note
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*//*-------------------------------------------------------------------*/
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Font::Glyph* Font::newGlyph()
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{
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for(int i=0;i<m_glyphs.size();i++)
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{
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if(m_glyphs[i].m_state == Glyph::GLYPH_UNINITIALIZED)
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return &m_glyphs[i];
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}
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m_glyphs.resize(m_glyphs.size()+1);
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return &m_glyphs[m_glyphs.size()-1];
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}
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/*-------------------------------------------------------------------*//*!
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* \brief Free glyph and its data.
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* \param
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* \return
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* \note
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*//*-------------------------------------------------------------------*/
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void Font::clearGlyph(Glyph* g)
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{
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RI_ASSERT(g);
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if(g->m_path != VG_INVALID_HANDLE)
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{
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Path* p = (Path*)g->m_path;
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if(!p->removeReference())
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RI_DELETE(p);
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}
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if(g->m_image != VG_INVALID_HANDLE)
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{
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Image* p = (Image*)g->m_image;
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p->removeInUse();
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if(!p->removeReference())
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RI_DELETE(p);
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}
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Glyph a;
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*g = a;
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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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void Font::setGlyphToPath(unsigned int index, VGPath path, bool isHinted, const Vector2& origin, const Vector2& escapement)
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{
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Glyph* g = findGlyph(index);
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if(g)
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{ //glyph exists, replace
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clearGlyph(g);
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}
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else
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{ //glyph doesn't exist, allocate a new one
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g = newGlyph();
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}
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g->m_index = index;
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g->m_state = Glyph::GLYPH_PATH;
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g->m_path = path;
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g->m_image = VG_INVALID_HANDLE;
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g->m_isHinted = isHinted;
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g->m_origin = origin;
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g->m_escapement = escapement;
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if(path != VG_INVALID_HANDLE)
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{
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Path* p = (Path*)path;
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p->addReference();
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}
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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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void Font::setGlyphToImage(unsigned int index, VGImage image, const Vector2& origin, const Vector2& escapement)
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{
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Glyph* g = findGlyph(index);
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if(g)
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{ //glyph exists, replace
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clearGlyph(g);
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}
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else
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{ //glyph doesn't exist, allocate a new one
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g = newGlyph();
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}
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g->m_index = index;
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g->m_state = Glyph::GLYPH_IMAGE;
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g->m_path = VG_INVALID_HANDLE;
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g->m_image = image;
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g->m_isHinted = false;
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g->m_origin = origin;
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g->m_escapement = escapement;
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if(image != VG_INVALID_HANDLE)
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{
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Image* p = (Image*)image;
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p->addReference();
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p->addInUse();
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}
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}
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//=======================================================================
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} //namespace OpenVGRI
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