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: 
michael@0: #ifndef GRAPHITE2_NSEGCACHE
michael@0: 
michael@0: #include "inc/Main.h"
michael@0: #include "inc/Slot.h"
michael@0: #include "inc/Segment.h"
michael@0: #include "inc/SegCache.h"
michael@0: #include "inc/SegCacheEntry.h"
michael@0: 
michael@0: 
michael@0: using namespace graphite2;
michael@0: 
michael@0: SegCacheEntry::SegCacheEntry(const uint16* cmapGlyphs, size_t length, Segment * seg, size_t charOffset, long long cacheTime)
michael@0:     : m_glyphLength(0), m_unicode(gralloc<uint16>(length)), m_glyph(NULL),
michael@0:     m_attr(NULL), m_justs(NULL),
michael@0:     m_accessCount(0), m_lastAccess(cacheTime)
michael@0: {
michael@0:     if (m_unicode)
michael@0:         for (uint16 i = 0; i < length; i++)
michael@0:             m_unicode[i] = cmapGlyphs[i];
michael@0: 
michael@0:     const size_t    glyphCount = seg->slotCount(),
michael@0:                     sizeof_sjust = SlotJustify::size_of(seg->silf()->numJustLevels());
michael@0:     if (!glyphCount) return;
michael@0:     size_t num_justs = 0,
michael@0:            justs_pos = 0;
michael@0:     if (seg->hasJustification())
michael@0:     {
michael@0:         for (const Slot * s = seg->first(); s; s = s->next())
michael@0:         {
michael@0:             if (s->m_justs == 0)    continue;
michael@0:             ++num_justs;
michael@0:         }
michael@0:         m_justs = gralloc<byte>(sizeof_sjust * num_justs);
michael@0:     }
michael@0:     const Slot * slot = seg->first();
michael@0:     m_glyph = new Slot[glyphCount];
michael@0:     m_attr = gralloc<int16>(glyphCount * seg->numAttrs());
michael@0:     if (!m_glyph || (!m_attr && seg->numAttrs())) return;
michael@0:     m_glyphLength = glyphCount;
michael@0:     Slot * slotCopy = m_glyph;
michael@0:     m_glyph->prev(NULL);
michael@0: 
michael@0:     uint16 pos = 0;
michael@0:     while (slot)
michael@0:     {
michael@0:         slotCopy->userAttrs(m_attr + pos * seg->numAttrs());
michael@0:         slotCopy->m_justs = m_justs ? reinterpret_cast<SlotJustify *>(m_justs + justs_pos++ * sizeof_sjust) : 0;
michael@0:         slotCopy->set(*slot, -static_cast<int32>(charOffset), seg->numAttrs(), seg->silf()->numJustLevels(), length);
michael@0:         slotCopy->index(pos);
michael@0:         if (slot->firstChild())
michael@0:             slotCopy->m_child = m_glyph + slot->firstChild()->index();
michael@0:         if (slot->attachedTo())
michael@0:             slotCopy->attachTo(m_glyph + slot->attachedTo()->index());
michael@0:         if (slot->nextSibling())
michael@0:             slotCopy->m_sibling = m_glyph + slot->nextSibling()->index();
michael@0:         slot = slot->next();
michael@0:         ++slotCopy;
michael@0:         ++pos;
michael@0:         if (slot)
michael@0:         {
michael@0:             slotCopy->prev(slotCopy-1);
michael@0:             (slotCopy-1)->next(slotCopy);
michael@0:         }
michael@0:     }
michael@0: }
michael@0: 
michael@0: 
michael@0: void SegCacheEntry::clear()
michael@0: {
michael@0:     free(m_unicode);
michael@0:     free(m_attr);
michael@0:     free(m_justs);
michael@0:     delete [] m_glyph;
michael@0:     m_unicode = NULL;
michael@0:     m_glyph = NULL;
michael@0:     m_glyphLength = 0;
michael@0:     m_attr = NULL;
michael@0: }
michael@0: 
michael@0: #endif
michael@0: