Add dump-fon, a prototype on how to work with .fon/.fnt files (#981)
This commit is contained in:
Ebrahim Byagowi
Behdad Esfahbod
parent
ce99dd04de
commit
67dfb1937b
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@ -362,11 +362,15 @@ dist_check_SCRIPTS += \
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endif
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endif
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check_PROGRAMS += \
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check_PROGRAMS += \
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dump-fon \
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dump-indic-data \
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dump-indic-data \
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dump-khmer-data \
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dump-khmer-data \
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dump-myanmar-data \
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dump-myanmar-data \
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dump-use-data \
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dump-use-data \
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$(NULL)
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$(NULL)
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dump_fon_SOURCES = dump-fon.cc
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dump_fon_CPPFLAGS = $(HBCFLAGS)
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dump_fon_LDADD = libharfbuzz.la $(HBLIBS)
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dump_indic_data_SOURCES = dump-indic-data.cc hb-ot-shape-complex-indic-table.cc
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dump_indic_data_SOURCES = dump-indic-data.cc hb-ot-shape-complex-indic-table.cc
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dump_indic_data_CPPFLAGS = $(HBCFLAGS)
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dump_indic_data_CPPFLAGS = $(HBCFLAGS)
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dump_indic_data_LDADD = libharfbuzz.la $(HBLIBS)
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dump_indic_data_LDADD = libharfbuzz.la $(HBLIBS)
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@ -0,0 +1,475 @@
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/*
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* Copyright © 2018 Ebrahim Byagowi
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*
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* This is part of HarfBuzz, a text shaping library.
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*
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* Permission is hereby granted, without written agreement and without
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* license or royalty fees, to use, copy, modify, and distribute this
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* software and its documentation for any purpose, provided that the
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* above copyright notice and the following two paragraphs appear in
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* all copies of this software.
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*
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "hb-open-type-private.hh"
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#ifndef HB_NO_VISIBILITY
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const void * const OT::_hb_NullPool[HB_NULL_POOL_SIZE / sizeof (void *)] = {};
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#endif
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template <typename Type, int Bytes> struct LEInt;
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template <typename Type>
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struct LEInt<Type, 1>
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{
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public:
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inline void set (Type V)
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{
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v = V;
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}
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inline operator Type (void) const
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{
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return v;
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}
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private: uint8_t v;
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};
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template <typename Type>
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struct LEInt<Type, 2>
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{
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public:
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inline void set (Type V)
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{
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v[1] = (V >> 8) & 0xFF;
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v[0] = (V ) & 0xFF;
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}
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inline operator Type (void) const
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{
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return (v[1] << 8)
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+ (v[0] );
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}
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private: uint8_t v[2];
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};
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template <typename Type>
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struct LEInt<Type, 3>
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{
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public:
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inline void set (Type V)
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{
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v[2] = (V >> 16) & 0xFF;
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v[1] = (V >> 8) & 0xFF;
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v[0] = (V ) & 0xFF;
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}
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inline operator Type (void) const
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{
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return (v[2] << 16)
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+ (v[1] << 8)
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+ (v[0] );
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}
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private: uint8_t v[3];
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};
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template <typename Type>
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struct LEInt<Type, 4>
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{
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public:
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inline void set (Type V)
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{
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v[3] = (V >> 24) & 0xFF;
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v[2] = (V >> 16) & 0xFF;
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v[1] = (V >> 8) & 0xFF;
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v[0] = (V ) & 0xFF;
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}
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inline operator Type (void) const
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{
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return (v[3] << 24)
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+ (v[2] << 16)
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+ (v[1] << 8)
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+ (v[0] );
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}
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private: uint8_t v[4];
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};
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template <typename Type, unsigned int Size>
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struct LEIntType
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{
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inline void set (Type i) { v.set (i); }
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inline operator Type(void) const { return v; }
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inline bool sanitize (OT::hb_sanitize_context_t *c) const
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{
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TRACE_SANITIZE (this);
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return_trace (likely (c->check_struct (this)));
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}
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protected:
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LEInt<Type, Size> v;
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public:
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DEFINE_SIZE_STATIC (Size);
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};
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typedef LEIntType<uint8_t, 1> LEUINT8; /* 8-bit unsigned integer. */
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typedef LEIntType<int8_t, 1> LEINT8; /* 8-bit signed integer. */
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typedef LEIntType<uint16_t, 2> LEUINT16; /* 16-bit unsigned integer. */
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typedef LEIntType<int16_t, 2> LEINT16; /* 16-bit signed integer. */
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typedef LEIntType<uint32_t, 4> LEUINT32; /* 32-bit unsigned integer. */
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typedef LEIntType<int32_t, 4> LEINT32; /* 32-bit signed integer. */
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typedef LEIntType<uint32_t, 3> LEUINT24; /* 24-bit unsigned integer. */
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struct LE_FONTINFO16
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{
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inline bool sanitize (OT::hb_sanitize_context_t *c) const
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{
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TRACE_SANITIZE (this);
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return_trace (likely (c->check_struct (this)));
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}
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inline unsigned int get_charset () const
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{
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return dfCharSet;
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}
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// https://msdn.microsoft.com/en-us/library/cc194829.aspx
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enum charset_t
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{
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// dfCharSet possible values and the codepage they are indicating to
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ANSI = 0x00, // 1252
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DEFAULT = 0x01, //
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SYMBOL = 0x02, //
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SHIFTJIS = 0x80, // 932
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HANGUL = 0x81, // 949
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GB2312 = 0x86, // 936
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CHINESEBIG5 = 0x88, // 950
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GREEK = 0xA1, // 1253
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TURKISH = 0xA2, // 1254
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HEBREW = 0xB1, // 1255
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ARABIC = 0xB2, // 1256
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BALTIC = 0xBA, // 1257
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RUSSIAN = 0xCC, // 1251
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THAI = 0xDE, // 874
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EE = 0xEE, // 1250
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OEM = 0xFF //
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};
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protected:
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LEUINT16 dfVersion;
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LEUINT32 dfSize;
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LEUINT8 dfCopyright[60];
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LEUINT16 dfType;
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LEUINT16 dfPoints;
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LEUINT16 dfVertRes;
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LEUINT16 dfHorizRes;
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LEUINT16 dfAscent;
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LEUINT16 dfInternalLeading;
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LEUINT16 dfExternalLeading;
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LEUINT8 dfItalic;
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LEUINT8 dfUnderline;
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LEUINT8 dfStrikeOut;
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LEUINT16 dfWeight;
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LEUINT8 dfCharSet; // see charset_t
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LEUINT16 dfPixWidth;
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LEUINT16 dfPixHeight;
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LEUINT8 dfPitchAndFamily;
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LEUINT16 dfAvgWidth;
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LEUINT16 dfMaxWidth;
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LEUINT8 dfFirstChar;
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LEUINT8 dfLastChar;
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LEUINT8 dfDefaultChar;
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LEUINT8 dfBreakChar;
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LEUINT16 dfWidthBytes;
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LEUINT32 dfDevice;
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LEUINT32 dfFace;
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LEUINT32 dfBitsPointer;
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LEUINT32 dfBitsOffset;
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LEUINT8 dfReserved;
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LEUINT32 dfFlags;
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LEUINT16 dfAspace;
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LEUINT16 dfBspace;
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LEUINT16 dfCspace;
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LEUINT32 dfColorPointer;
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LEUINT32 dfReserved1[4];
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public:
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DEFINE_SIZE_STATIC (148);
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};
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struct NE_NAMEINFO
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{
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friend struct NE_TYPEINFO;
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inline bool sanitize (OT::hb_sanitize_context_t *c, const void *base, unsigned int shift) const
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{
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TRACE_SANITIZE (this);
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return_trace (likely (c->check_struct (this) &&
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c->check_range ((const char*)base + (offset << shift),
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length << shift) &&
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get_font (base, shift)->sanitize (c)));
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}
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inline const LE_FONTINFO16* get_font (const void *base, int shift) const
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{
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return (const LE_FONTINFO16 *) ((const char *) base + (offset << shift));
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}
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enum resource_type_flag_t {
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NONE = 0x0000,
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MOVEABLE = 0x0010,
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PURE = 0x0020,
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PRELOAD = 0x0040
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};
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protected:
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LEUINT16 offset; // Should be shifted with alignmentShiftCount before use
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LEUINT16 length; // Should be shifted with alignmentShiftCount before use
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LEUINT16 flags; // resource_type_flag_t
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LEUINT16 id;
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LEUINT16 handle;
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LEUINT16 usage;
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public:
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DEFINE_SIZE_STATIC (12);
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};
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struct NE_TYPEINFO
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{
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inline bool sanitize (OT::hb_sanitize_context_t *c, const void *base, unsigned int shift) const
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{
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TRACE_SANITIZE (this);
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return_trace (c->check_struct (this) && resources.sanitize (c, count, base, shift));
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}
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inline unsigned int get_size (void) const
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{ return 8 + count * NE_NAMEINFO::static_size; }
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inline const NE_TYPEINFO& next () const
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{
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const NE_TYPEINFO& next = OT::StructAfter<NE_TYPEINFO> (*this);
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if (type_id == 0)
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return OT::Null (NE_TYPEINFO);
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return next;
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}
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inline const LE_FONTINFO16* get_font (unsigned int idx, const void *base, int shift) const
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{
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if (idx < count)
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return resources[idx].get_font (base, shift);
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return &OT::Null (LE_FONTINFO16);
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}
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inline unsigned int get_count () const
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{
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return count;
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}
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inline unsigned int get_type_id () const
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{
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return type_id;
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}
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enum type_id_t {
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CURSOR = 0x8001,
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BITMAP = 0x8002,
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ICON = 0x8003,
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MENU = 0x8004,
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DIALOG = 0x8005,
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STRING = 0x8006,
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FONT_DIRECTORY = 0x8007,
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FONT = 0x8008,
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ACCELERATOR_TABLE = 0x8009,
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RESOURCE_DATA = 0x800a,
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GROUP_CURSOR = 0x800c,
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GROUP_ICON = 0x800e,
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VERSION = 0x8010
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};
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protected:
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LEUINT16 type_id; // see type_id_t
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LEUINT16 count;
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LEUINT32 resloader;
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OT::UnsizedArrayOf<NE_NAMEINFO>
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resources;
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public:
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DEFINE_SIZE_ARRAY (8, resources);
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};
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struct NE_RESOURCE_TABLE
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{
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inline bool sanitize (OT::hb_sanitize_context_t *c, const void *base) const
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{
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TRACE_SANITIZE (this);
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if (!c->check_struct (this))
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return_trace (false);
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const NE_TYPEINFO* n = &chain;
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while (n != &OT::Null (NE_TYPEINFO) && c->check_struct (n) && n->get_type_id () != 0)
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{
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if (n->get_type_id () == NE_TYPEINFO::FONT)
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return_trace (n->sanitize (c, base, alignmentShiftCount));
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n = &n->next();
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}
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return_trace (false);
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}
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inline unsigned int get_shift_value () const
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{
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return alignmentShiftCount;
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}
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inline const NE_TYPEINFO* get_fonts_entry () const
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{
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const NE_TYPEINFO* n = &chain;
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while (n != &OT::Null (NE_TYPEINFO) && n->get_type_id () != 0)
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{
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if (n->get_type_id () == NE_TYPEINFO::FONT)
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return n;
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n = &n->next();
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}
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return &OT::Null (NE_TYPEINFO);
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}
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protected:
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LEUINT16 alignmentShiftCount;
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NE_TYPEINFO chain;
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// It follows by an array of OT::ArrayOf<LEUINT8, LEUINT8> chars;
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public:
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DEFINE_SIZE_MIN (2);
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};
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// https://github.com/wine-mirror/wine/blob/master/include/winnt.h#L2467
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struct LE_IMAGE_OS2_HEADER
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{
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inline bool sanitize (OT::hb_sanitize_context_t *c, const void *base) const
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{
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TRACE_SANITIZE (this);
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return_trace (likely (c->check_struct (this) && (this+rsrctab).sanitize (c, base)));
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}
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inline const NE_RESOURCE_TABLE& get_resource_table () const
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{
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if (magic != 0x454E) // Only NE containers are support for now, NE == 0x454E
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return OT::Null (NE_RESOURCE_TABLE);
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return this+rsrctab;
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}
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protected:
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LEUINT16 magic; /* 00 NE signature 'NE' */
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LEUINT8 ver; /* 02 Linker version number */
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LEUINT8 rev; /* 03 Linker revision number */
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LEUINT16 enttab; /* 04 Offset to entry table relative to NE */
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LEUINT16 cbenttab; /* 06 Length of entry table in bytes */
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LEUINT32 crc; /* 08 Checksum */
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LEUINT16 flags; /* 0c Flags about segments in this file */
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LEUINT16 autodata; /* 0e Automatic data segment number */
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||||||
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LEUINT16 heap; /* 10 Initial size of local heap */
|
||||||
|
LEUINT16 stack; /* 12 Initial size of stack */
|
||||||
|
LEUINT32 csip; /* 14 Initial CS:IP */
|
||||||
|
LEUINT32 sssp; /* 18 Initial SS:SP */
|
||||||
|
LEUINT16 cseg; /* 1c # of entries in segment table */
|
||||||
|
LEUINT16 cmod; /* 1e # of entries in module reference tab. */
|
||||||
|
LEUINT16 cbnrestab; /* 20 Length of nonresident-name table */
|
||||||
|
LEUINT16 segtab; /* 22 Offset to segment table */
|
||||||
|
OT::OffsetTo<NE_RESOURCE_TABLE, LEUINT16>
|
||||||
|
rsrctab; /* 24 Offset to resource table */
|
||||||
|
LEUINT16 restab; /* 26 Offset to resident-name table */
|
||||||
|
LEUINT16 modtab; /* 28 Offset to module reference table */
|
||||||
|
LEUINT16 imptab; /* 2a Offset to imported name table */
|
||||||
|
LEUINT32 nrestab; /* 2c Offset to nonresident-name table */
|
||||||
|
LEUINT16 cmovent; /* 30 # of movable entry points */
|
||||||
|
LEUINT16 align; /* 32 Logical sector alignment shift count */
|
||||||
|
LEUINT16 cres; /* 34 # of resource segments */
|
||||||
|
LEUINT8 exetyp; /* 36 Flags indicating target OS */
|
||||||
|
LEUINT8 flagsothers; /* 37 Additional information flags */
|
||||||
|
LEUINT16 pretthunks; /* 38 Offset to return thunks */
|
||||||
|
LEUINT16 psegrefbytes; /* 3a Offset to segment ref. bytes */
|
||||||
|
LEUINT16 swaparea; /* 3c Reserved by Microsoft */
|
||||||
|
LEUINT16 expver; /* 3e Expected Windows version number */
|
||||||
|
public:
|
||||||
|
DEFINE_SIZE_STATIC (64);
|
||||||
|
};
|
||||||
|
|
||||||
|
struct LE_IMAGE_DOS_HEADER {
|
||||||
|
inline bool sanitize (OT::hb_sanitize_context_t *c) const
|
||||||
|
{
|
||||||
|
TRACE_SANITIZE (this);
|
||||||
|
return_trace (likely (c->check_struct (this) &&
|
||||||
|
get_os2_header ().sanitize (c, this)));
|
||||||
|
}
|
||||||
|
|
||||||
|
inline const LE_IMAGE_OS2_HEADER& get_os2_header () const
|
||||||
|
{
|
||||||
|
return this+e_lfanew;
|
||||||
|
}
|
||||||
|
|
||||||
|
protected:
|
||||||
|
LEUINT16 e_magic; // Magic number
|
||||||
|
LEUINT16 e_cblp; // Bytes on last page of file
|
||||||
|
LEUINT16 e_cp; // Pages in file
|
||||||
|
LEUINT16 e_crlc; // Relocations
|
||||||
|
LEUINT16 e_cparhdr; // Size of header in paragraphs
|
||||||
|
LEUINT16 e_minalloc; // Minimum extra paragraphs needed
|
||||||
|
LEUINT16 e_maxalloc; // Maximum extra paragraphs needed
|
||||||
|
LEUINT16 e_ss; // Initial (relative) SS value
|
||||||
|
LEUINT16 e_sp; // Initial SP value
|
||||||
|
LEUINT16 e_csum; // Checksum
|
||||||
|
LEUINT16 e_ip; // Initial IP value
|
||||||
|
LEUINT16 e_cs; // Initial (relative) CS value
|
||||||
|
LEUINT16 e_lfarlc; // File address of relocation table
|
||||||
|
LEUINT16 e_ovno; // Overlay number
|
||||||
|
LEUINT16 e_res_0; // Reserved words
|
||||||
|
LEUINT16 e_res_1; // Reserved words
|
||||||
|
LEUINT16 e_res_2; // Reserved words
|
||||||
|
LEUINT16 e_res_3; // Reserved words
|
||||||
|
LEUINT16 e_oemid; // OEM identifier (for e_oeminfo)
|
||||||
|
LEUINT16 e_oeminfo; // OEM information; e_oemid specific
|
||||||
|
LEUINT16 e_res2_0; // Reserved words
|
||||||
|
LEUINT16 e_res2_1; // Reserved words
|
||||||
|
LEUINT16 e_res2_2; // Reserved words
|
||||||
|
LEUINT16 e_res2_3; // Reserved words
|
||||||
|
LEUINT16 e_res2_4; // Reserved words
|
||||||
|
LEUINT16 e_res2_5; // Reserved words
|
||||||
|
LEUINT16 e_res2_6; // Reserved words
|
||||||
|
LEUINT16 e_res2_7; // Reserved words
|
||||||
|
LEUINT16 e_res2_8; // Reserved words
|
||||||
|
LEUINT16 e_res2_9; // Reserved words
|
||||||
|
OT::OffsetTo<LE_IMAGE_OS2_HEADER, LEUINT32>
|
||||||
|
e_lfanew; // File address of new exe header
|
||||||
|
public:
|
||||||
|
DEFINE_SIZE_STATIC (64);
|
||||||
|
};
|
||||||
|
|
||||||
|
int main (int argc, char** argv) {
|
||||||
|
FILE *f = fopen (argv[1], "rb");
|
||||||
|
fseek (f, 0, SEEK_END);
|
||||||
|
unsigned int len = ftell (f);
|
||||||
|
rewind (f);
|
||||||
|
const char *font_data = (const char *) malloc (len);
|
||||||
|
len = fread ((char *) font_data, 1, len, f);
|
||||||
|
|
||||||
|
|
||||||
|
OT::Sanitizer<LE_IMAGE_DOS_HEADER> sanitizer;
|
||||||
|
hb_blob_t *blob = hb_blob_create (font_data, len, HB_MEMORY_MODE_WRITABLE,
|
||||||
|
(void *) font_data, free);
|
||||||
|
hb_blob_t *font_blob = sanitizer.sanitize (blob);
|
||||||
|
const LE_IMAGE_DOS_HEADER* dos_header =
|
||||||
|
OT::Sanitizer<LE_IMAGE_DOS_HEADER>::lock_instance (font_blob);
|
||||||
|
|
||||||
|
|
||||||
|
const NE_RESOURCE_TABLE &rtable = dos_header->get_os2_header ().get_resource_table ();
|
||||||
|
int shift = rtable.get_shift_value ();
|
||||||
|
const NE_TYPEINFO* entry = rtable.get_fonts_entry ();
|
||||||
|
for (int i = 0; i < entry->get_count (); ++i)
|
||||||
|
{
|
||||||
|
const LE_FONTINFO16* font = entry->get_font (i, dos_header, shift);
|
||||||
|
printf ("charset: %d\n", font->get_charset ());
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue