1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/graphite2/src/inc/Silf.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,129 @@
1.4 +/* GRAPHITE2 LICENSING
1.5 +
1.6 + Copyright 2010, SIL International
1.7 + All rights reserved.
1.8 +
1.9 + This library is free software; you can redistribute it and/or modify
1.10 + it under the terms of the GNU Lesser General Public License as published
1.11 + by the Free Software Foundation; either version 2.1 of License, or
1.12 + (at your option) any later version.
1.13 +
1.14 + This program is distributed in the hope that it will be useful,
1.15 + but WITHOUT ANY WARRANTY; without even the implied warranty of
1.16 + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1.17 + Lesser General Public License for more details.
1.18 +
1.19 + You should also have received a copy of the GNU Lesser General Public
1.20 + License along with this library in the file named "LICENSE".
1.21 + If not, write to the Free Software Foundation, 51 Franklin Street,
1.22 + Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
1.23 + internet at http://www.fsf.org/licenses/lgpl.html.
1.24 +
1.25 +Alternatively, the contents of this file may be used under the terms of the
1.26 +Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
1.27 +License, as published by the Free Software Foundation, either version 2
1.28 +of the License or (at your option) any later version.
1.29 +*/
1.30 +#pragma once
1.31 +
1.32 +#include "graphite2/Font.h"
1.33 +#include "inc/Main.h"
1.34 +#include "inc/Pass.h"
1.35 +
1.36 +namespace graphite2 {
1.37 +
1.38 +class Face;
1.39 +class Segment;
1.40 +class FeatureVal;
1.41 +class VMScratch;
1.42 +class Error;
1.43 +
1.44 +class Pseudo
1.45 +{
1.46 +public:
1.47 + uint32 uid;
1.48 + uint32 gid;
1.49 + CLASS_NEW_DELETE;
1.50 +};
1.51 +
1.52 +class Justinfo
1.53 +{
1.54 +public:
1.55 + Justinfo(uint8 stretch, uint8 shrink, uint8 step, uint8 weight) :
1.56 + m_astretch(stretch), m_ashrink(shrink), m_astep(step),
1.57 + m_aweight(weight) {};
1.58 + uint8 attrStretch() const { return m_astretch; }
1.59 + uint8 attrShrink() const { return m_ashrink; }
1.60 + uint8 attrStep() const { return m_astep; }
1.61 + uint8 attrWeight() const { return m_aweight; }
1.62 +
1.63 +private:
1.64 + uint8 m_astretch;
1.65 + uint8 m_ashrink;
1.66 + uint8 m_astep;
1.67 + uint8 m_aweight;
1.68 +};
1.69 +
1.70 +class Silf
1.71 +{
1.72 + // Prevent copying
1.73 + Silf(const Silf&);
1.74 + Silf& operator=(const Silf&);
1.75 +
1.76 +public:
1.77 + Silf() throw();
1.78 + ~Silf() throw();
1.79 +
1.80 + bool readGraphite(const byte * const pSilf, size_t lSilf, Face &face, uint32 version);
1.81 + bool runGraphite(Segment *seg, uint8 firstPass=0, uint8 lastPass=0, int dobidi = 0) const;
1.82 + uint16 findClassIndex(uint16 cid, uint16 gid) const;
1.83 + uint16 getClassGlyph(uint16 cid, unsigned int index) const;
1.84 + uint16 findPseudo(uint32 uid) const;
1.85 + uint8 numUser() const { return m_aUser; }
1.86 + uint8 aPseudo() const { return m_aPseudo; }
1.87 + uint8 aBreak() const { return m_aBreak; }
1.88 + uint8 aMirror() const {return m_aMirror; }
1.89 + uint8 aPassBits() const { return m_aPassBits; }
1.90 + uint8 aBidi() const { return m_aBidi; }
1.91 + uint8 substitutionPass() const { return m_sPass; }
1.92 + uint8 positionPass() const { return m_pPass; }
1.93 + uint8 justificationPass() const { return m_jPass; }
1.94 + uint8 bidiPass() const { return m_bPass; }
1.95 + uint8 numPasses() const { return m_numPasses; }
1.96 + uint8 maxCompPerLig() const { return m_iMaxComp; }
1.97 + uint16 numClasses() const { return m_nClass; }
1.98 + byte flags() const { return m_flags; }
1.99 + uint8 numJustLevels() const { return m_numJusts; }
1.100 + Justinfo *justAttrs() const { return m_justs; }
1.101 + uint16 endLineGlyphid() const { return m_gEndLine; }
1.102 + const gr_faceinfo *silfInfo() const { return &m_silfinfo; }
1.103 +
1.104 + CLASS_NEW_DELETE;
1.105 +
1.106 +private:
1.107 + size_t readClassMap(const byte *p, size_t data_len, uint32 version, Error &e);
1.108 + template<typename T> inline uint32 readClassOffsets(const byte *&p, size_t data_len, Error &e);
1.109 +
1.110 + Pass * m_passes;
1.111 + Pseudo * m_pseudos;
1.112 + uint32 * m_classOffsets;
1.113 + uint16 * m_classData;
1.114 + Justinfo * m_justs;
1.115 + uint8 m_numPasses;
1.116 + uint8 m_numJusts;
1.117 + uint8 m_sPass, m_pPass, m_jPass, m_bPass,
1.118 + m_flags;
1.119 +
1.120 + uint8 m_aPseudo, m_aBreak, m_aUser, m_aBidi, m_aMirror, m_aPassBits,
1.121 + m_iMaxComp;
1.122 + uint16 m_aLig,
1.123 + m_numPseudo,
1.124 + m_nClass,
1.125 + m_nLinear,
1.126 + m_gEndLine;
1.127 + gr_faceinfo m_silfinfo;
1.128 +
1.129 + void releaseBuffers() throw();
1.130 +};
1.131 +
1.132 +} // namespace graphite2
