michael@0: /*  GRAPHITE2 LICENSING
michael@0: 
michael@0:     Copyright 2010, SIL International
michael@0:     All rights reserved.
michael@0: 
michael@0:     This library is free software; you can redistribute it and/or modify
michael@0:     it under the terms of the GNU Lesser General Public License as published
michael@0:     by the Free Software Foundation; either version 2.1 of License, or
michael@0:     (at your option) any later version.
michael@0: 
michael@0:     This program is distributed in the hope that it will be useful,
michael@0:     but WITHOUT ANY WARRANTY; without even the implied warranty of
michael@0:     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
michael@0:     Lesser General Public License for more details.
michael@0: 
michael@0:     You should also have received a copy of the GNU Lesser General Public
michael@0:     License along with this library in the file named "LICENSE".
michael@0:     If not, write to the Free Software Foundation, 51 Franklin Street, 
michael@0:     Suite 500, Boston, MA 02110-1335, USA or visit their web page on the 
michael@0:     internet at http://www.fsf.org/licenses/lgpl.html.
michael@0: 
michael@0: Alternatively, the contents of this file may be used under the terms of the
michael@0: Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
michael@0: License, as published by the Free Software Foundation, either version 2
michael@0: of the License or (at your option) any later version.
michael@0: */
michael@0: #include "inc/Face.h"
michael@0: #include "inc/Font.h"
michael@0: #include "inc/GlyphCache.h"
michael@0: 
michael@0: using namespace graphite2;
michael@0: 
michael@0: Font::Font(float ppm, const Face & f, const void * appFontHandle, const gr_font_ops * ops)
michael@0: : m_appFontHandle(appFontHandle ? appFontHandle : this),
michael@0:   m_face(f),
michael@0:   m_scale(ppm / f.glyphs().unitsPerEm()),
michael@0:   m_hinted(appFontHandle && ops && (ops->glyph_advance_x || ops->glyph_advance_y))
michael@0: {
michael@0:     memset(&m_ops, 0, sizeof m_ops);
michael@0:     if (m_hinted && ops)
michael@0:         memcpy(&m_ops, ops, min(sizeof m_ops, ops->size));
michael@0:     else
michael@0:         m_ops.glyph_advance_x = &Face::default_glyph_advance;
michael@0: 
michael@0:     size_t nGlyphs = f.glyphs().numGlyphs();
michael@0:     m_advances = gralloc<float>(nGlyphs);
michael@0:     if (m_advances)
michael@0:     {
michael@0:         for (float *advp = m_advances; nGlyphs; --nGlyphs, ++advp)
michael@0:             *advp = INVALID_ADVANCE;
michael@0:     }
michael@0: }
michael@0: 
michael@0: 
michael@0: /*virtual*/ Font::~Font()
michael@0: {
michael@0:     free(m_advances);
michael@0: }
michael@0: 
michael@0: 
michael@0: