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/*
* FTGL - OpenGL font library
*
* Copyright (c) 2001-2004 Henry Maddocks <ftgl@opengl.geek.nz>
* Copyright (c) 2008 Sam Hocevar <sam@zoy.org>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is 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 Software.
*
* THE SOFTWARE IS 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
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "config.h"
#include "FTFace.h"
#include "FTCharmap.h"
FTCharmap::FTCharmap(FTFace* face)
: ftFace(*(face->Face())),
err(0)
{
if(!ftFace->charmap)
{
if(!ftFace->num_charmaps)
{
// This face doesn't even have one charmap!
err = 0x96; // Invalid_CharMap_Format
return;
}
err = FT_Set_Charmap(ftFace, ftFace->charmaps[0]);
}
ftEncoding = ftFace->charmap->encoding;
for(unsigned int i = 0; i < FTCharmap::MAX_PRECOMPUTED; i++)
{
charIndexCache[i] = FT_Get_Char_Index(ftFace, i);
}
}
FTCharmap::~FTCharmap()
{
charMap.clear();
}
bool FTCharmap::CharMap(FT_Encoding encoding)
{
if(ftEncoding == encoding)
{
err = 0;
return true;
}
err = FT_Select_Charmap(ftFace, encoding);
if(!err)
{
ftEncoding = encoding;
charMap.clear();
}
return !err;
}
unsigned int FTCharmap::GlyphListIndex(const unsigned int characterCode)
{
return charMap.find(characterCode);
}
unsigned int FTCharmap::FontIndex(const unsigned int characterCode)
{
if(characterCode < FTCharmap::MAX_PRECOMPUTED)
{
return charIndexCache[characterCode];
}
return FT_Get_Char_Index(ftFace, characterCode);
}
void FTCharmap::InsertIndex(const unsigned int characterCode,
const size_t containerIndex)
{
charMap.insert(characterCode, static_cast<FTCharToGlyphIndexMap::GlyphIndex>(containerIndex));
}
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