Further improvements on dump-fon (#985)
This commit is contained in:
Ebrahim Byagowi
GitHub
parent
67dfb1937b
commit
aef96e246c
153
src/dump-fon.cc
153
src/dump-fon.cc
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@ -128,15 +128,10 @@ 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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inline bool sanitize (OT::hb_sanitize_context_t *c, unsigned int length) 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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return_trace (likely (c->check_struct (this) && c->check_range (this, length)));
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}
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// https://msdn.microsoft.com/en-us/library/cc194829.aspx
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@ -161,6 +156,102 @@ struct LE_FONTINFO16
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OEM = 0xFF //
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};
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inline const char* get_charset() const
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{
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switch (dfCharSet) {
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case ANSI: return "ISO8859";
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case DEFAULT: return "WinDefault";
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case SYMBOL: return "Symbol";
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case SHIFTJIS: return "JISX0208.1983";
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case HANGUL: return "MSHangul";
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case GB2312: return "GB2312.1980";
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case CHINESEBIG5: return "Big5";
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case GREEK: return "CP1253";
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case TURKISH: return "CP1254";
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case HEBREW: return "CP1255";
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case ARABIC: return "CP1256";
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case BALTIC: return "CP1257";
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case RUSSIAN: return "CP1251";
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case THAI: return "CP874";
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case EE: return "CP1250";
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case OEM: return "OEM";
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default: return "Unknown";
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}
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}
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inline unsigned int get_version () const
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{
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return dfVersion;
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}
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inline unsigned int get_weight () const
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{
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return dfWeight;
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}
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enum weight_t {
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DONTCARE = 0,
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THIN = 100,
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EXTRALIGHT = 200,
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ULTRALIGHT = 200,
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LIGHT = 300,
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NORMAL = 400,
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REGULAR = 400,
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MEDIUM = 500,
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SEMIBOLD = 600,
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DEMIBOLD = 600,
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BOLD = 700,
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EXTRABOLD = 800,
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ULTRABOLD = 800,
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HEAVY = 900,
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BLACK = 900
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};
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inline void dump () const
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{
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// With https://github.com/juanitogan/mkwinfont/blob/master/python/dewinfont.py help
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// Should be implemented differently eventually, but for now
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unsigned int ctstart;
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unsigned int ctsize;
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if (dfVersion == 0x200)
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{
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ctstart = 0x76;
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ctsize = 4;
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}
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else
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{
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return; // must of ".fon"s are version 2 and even dewinfont V1 implmentation doesn't seem correct
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ctstart = 0x94;
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ctsize = 6;
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}
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// unsigned int maxwidth = 0;
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for (unsigned int i = dfFirstChar; i < dfLastChar; ++i)
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{
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unsigned int entry = ctstart + ctsize * (i-dfFirstChar);
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unsigned int w = (uint16_t) OT::StructAtOffset<LEUINT16> (this, entry);
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unsigned int off;
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if (ctsize == 4)
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off = (uint16_t) OT::StructAtOffset<LEUINT16> (this, entry+2);
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else
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off = (uint32_t) OT::StructAtOffset<LEUINT32> (this, entry+2);
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unsigned int widthbytes = (w + 7) / 8;
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for (unsigned int j = 0; j < dfPixHeight; ++j)
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{
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for (unsigned int k = 0; k < widthbytes; ++k)
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{
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unsigned int bytepos = off + k * dfPixHeight + j;
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const uint8_t b = (uint8_t) OT::StructAtOffset<LEINT8> (this, bytepos);
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for (unsigned int a = 128; a > 0; a >>= 1)
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printf (b & a ? "x" : ".");
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}
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printf ("\n");
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}
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printf ("\n\n");
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}
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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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@ -175,7 +266,7 @@ struct LE_FONTINFO16
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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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LEUINT16 dfWeight; // see weight_t
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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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@ -192,14 +283,16 @@ struct LE_FONTINFO16
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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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// 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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OT::UnsizedArrayOf<LEUINT8>
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dataZ;
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public:
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DEFINE_SIZE_STATIC (148);
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DEFINE_SIZE_ARRAY (118, dataZ);
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};
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struct NE_NAMEINFO
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@ -210,14 +303,12 @@ struct NE_NAMEINFO
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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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get_font (base, shift).sanitize (c, length << shift)));
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}
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inline const LE_FONTINFO16* get_font (const void *base, int shift) const
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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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return OT::StructAtOffset<LE_FONTINFO16> (base, offset << shift);
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}
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enum resource_type_flag_t {
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@ -257,11 +348,11 @@ struct 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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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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return OT::Null (LE_FONTINFO16);
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}
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inline unsigned int get_count () const
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@ -324,22 +415,22 @@ struct NE_RESOURCE_TABLE
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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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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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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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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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// It is followed 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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@ -465,11 +556,13 @@ int main (int argc, char** argv) {
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const NE_RESOURCE_TABLE &rtable = dos_header->get_os2_header ().get_resource_table ();
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int shift = rtable.get_shift_value ();
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const NE_TYPEINFO* entry = rtable.get_fonts_entry ();
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for (int i = 0; i < entry->get_count (); ++i)
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const NE_TYPEINFO& entry = rtable.get_fonts_entry ();
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for (unsigned int i = 0; i < entry.get_count (); ++i)
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{
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const LE_FONTINFO16* font = entry->get_font (i, dos_header, shift);
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printf ("charset: %d\n", font->get_charset ());
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const LE_FONTINFO16& font = entry.get_font (i, dos_header, shift);
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printf ("version: %x, weight: %d, charset: %s\n", font.get_version (),
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font.get_weight (), font.get_charset ());
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// font.dump ();
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}
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return 0;
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}
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