[3019] | 1 | /* |
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| 2 | * True Type Font to Adobe Type 1 font converter |
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| 3 | * By Mark Heath <mheath@netspace.net.au> |
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| 4 | * Based on ttf2pfa by Andrew Weeks <ccsaw@bath.ac.uk> |
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| 5 | * With help from Frank M. Siegert <fms@this.net> |
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| 6 | * |
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| 7 | * see COPYRIGHT |
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| 8 | * |
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| 9 | */ |
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| 10 | #include <stdio.h> |
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| 11 | #include <stdlib.h> |
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| 12 | #include <string.h> |
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| 13 | #include <sys/types.h> |
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| 14 | #include <sys/stat.h> |
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| 15 | #include <fcntl.h> |
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| 16 | #include <time.h> |
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| 17 | #include <ctype.h> |
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| 18 | #include <math.h> |
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| 19 | |
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| 20 | #ifndef WINDOWS |
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| 21 | # include <unistd.h> |
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| 22 | # include <netinet/in.h> |
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| 23 | #else |
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| 24 | # include "windows.h" |
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| 25 | #endif |
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| 26 | |
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| 27 | #include "ttf.h" |
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| 28 | #include "pt1.h" |
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| 29 | #include "global.h" |
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| 30 | |
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| 31 | /* prototypes of call entries */ |
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| 32 | static void openfont(char *fname, char *arg); |
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| 33 | static void closefont( void); |
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| 34 | static int getnglyphs ( void); |
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| 35 | static int glnames( GLYPH *glyph_list); |
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| 36 | static void glmetrics( GLYPH *glyph_list); |
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| 37 | static int glenc( GLYPH *glyph_list, int *encoding, int *unimap); |
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| 38 | static void fnmetrics( struct font_metrics *fm); |
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| 39 | static void glpath( int glyphno, GLYPH *glyph_list); |
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| 40 | static void kerning( GLYPH *glyph_list); |
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| 41 | |
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| 42 | /* globals */ |
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| 43 | |
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| 44 | /* front-end descriptor */ |
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| 45 | struct frontsw ttf_sw = { |
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| 46 | /*name*/ "ttf", |
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| 47 | /*descr*/ "built-in TTF support", |
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| 48 | /*suffix*/ { "ttf" }, |
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| 49 | /*open*/ openfont, |
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| 50 | /*close*/ closefont, |
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| 51 | /*nglyphs*/ getnglyphs, |
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| 52 | /*glnames*/ glnames, |
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| 53 | /*glmetrics*/ glmetrics, |
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| 54 | /*glenc*/ glenc, |
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| 55 | /*fnmetrics*/ fnmetrics, |
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| 56 | /*glpath*/ glpath, |
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| 57 | /*kerning*/ kerning, |
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| 58 | }; |
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| 59 | |
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| 60 | /* statics */ |
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| 61 | |
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| 62 | static FILE *ttf_file; |
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| 63 | static int ttf_nglyphs, long_offsets; |
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| 64 | |
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| 65 | static TTF_DIRECTORY *directory; |
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| 66 | static TTF_DIR_ENTRY *dir_entry; |
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| 67 | static char *filebuffer; |
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| 68 | static char *filebuffer_end; |
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| 69 | static TTF_NAME *name_table = NULL; |
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| 70 | static TTF_NAME_REC *name_record; |
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| 71 | static TTF_HEAD *head_table = NULL; |
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| 72 | static TTF_HHEA *hhea_table = NULL; |
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| 73 | static TTF_KERN *kern_table = NULL; |
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| 74 | static TTF_CMAP *cmap_table = NULL; |
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| 75 | static LONGHORMETRIC *hmtx_table = NULL; |
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| 76 | static TTF_GLYF *glyf_table; |
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| 77 | static BYTE *glyf_start = NULL; |
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| 78 | static TTF_MAXP *maxp_table = NULL; |
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| 79 | static TTF_POST_HEAD *post_table = NULL; |
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| 80 | static union { |
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| 81 | USHORT *sp; |
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| 82 | ULONG *lp; |
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| 83 | } loca_table; |
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| 84 | #define short_loca_table loca_table.sp |
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| 85 | #define long_loca_table loca_table.lp |
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| 86 | |
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| 87 | static short cmap_n_segs; |
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| 88 | static USHORT *cmap_seg_start, *cmap_seg_end; |
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| 89 | static short *cmap_idDelta, *cmap_idRangeOffset; |
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| 90 | static TTF_CMAP_FMT0 *encoding0; |
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| 91 | static int enc_type; |
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| 92 | |
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| 93 | static char *name_fields[8]; |
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| 94 | |
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| 95 | static int enc_found_ms, enc_found_mac; |
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| 96 | |
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| 97 | static char *mac_glyph_names[258] = { |
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| 98 | ".notdef", ".null", "CR", |
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| 99 | "space", "exclam", "quotedbl", "numbersign", |
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| 100 | "dollar", "percent", "ampersand", "quotesingle", |
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| 101 | "parenleft", "parenright", "asterisk", "plus", |
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| 102 | "comma", "hyphen", "period", "slash", |
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| 103 | "zero", "one", "two", "three", |
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| 104 | "four", "five", "six", "seven", |
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| 105 | "eight", "nine", "colon", "semicolon", |
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| 106 | "less", "equal", "greater", "question", |
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| 107 | "at", "A", "B", "C", |
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| 108 | "D", "E", "F", "G", |
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| 109 | "H", "I", "J", "K", |
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| 110 | "L", "M", "N", "O", |
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| 111 | "P", "Q", "R", "S", |
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| 112 | "T", "U", "V", "W", |
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| 113 | "X", "Y", "Z", "bracketleft", |
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| 114 | "backslash", "bracketright", "asciicircum", "underscore", |
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| 115 | "grave", "a", "b", "c", |
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| 116 | "d", "e", "f", "g", |
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| 117 | "h", "i", "j", "k", |
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| 118 | "l", "m", "n", "o", |
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| 119 | "p", "q", "r", "s", |
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| 120 | "t", "u", "v", "w", |
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| 121 | "x", "y", "z", "braceleft", |
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| 122 | "bar", "braceright", "asciitilde", "Adieresis", |
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| 123 | "Aring", "Ccedilla", "Eacute", "Ntilde", |
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| 124 | "Odieresis", "Udieresis", "aacute", "agrave", |
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| 125 | "acircumflex", "adieresis", "atilde", "aring", |
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| 126 | "ccedilla", "eacute", "egrave", "ecircumflex", |
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| 127 | "edieresis", "iacute", "igrave", "icircumflex", |
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| 128 | "idieresis", "ntilde", "oacute", "ograve", |
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| 129 | "ocircumflex", "odieresis", "otilde", "uacute", |
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| 130 | "ugrave", "ucircumflex", "udieresis", "dagger", |
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| 131 | "degree", "cent", "sterling", "section", |
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| 132 | "bullet", "paragraph", "germandbls", "registered", |
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| 133 | "copyright", "trademark", "acute", "dieresis", |
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| 134 | "notequal", "AE", "Oslash", "infinity", |
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| 135 | "plusminus", "lessequal", "greaterequal", "yen", |
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| 136 | "mu", "partialdiff", "summation", "product", |
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| 137 | "pi", "integral", "ordfeminine", "ordmasculine", |
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| 138 | "Omega", "ae", "oslash", "questiondown", |
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| 139 | "exclamdown", "logicalnot", "radical", "florin", |
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| 140 | "approxequal", "increment", "guillemotleft", "guillemotright", |
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| 141 | "ellipsis", "nbspace", "Agrave", "Atilde", |
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| 142 | "Otilde", "OE", "oe", "endash", |
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| 143 | "emdash", "quotedblleft", "quotedblright", "quoteleft", |
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| 144 | "quoteright", "divide", "lozenge", "ydieresis", |
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| 145 | "Ydieresis", "fraction", "currency", "guilsinglleft", |
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| 146 | "guilsinglright", "fi", "fl", "daggerdbl", |
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| 147 | "periodcentered", "quotesinglbase", "quotedblbase", "perthousand", |
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| 148 | "Acircumflex", "Ecircumflex", "Aacute", "Edieresis", |
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| 149 | "Egrave", "Iacute", "Icircumflex", "Idieresis", |
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| 150 | "Igrave", "Oacute", "Ocircumflex", "applelogo", |
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| 151 | "Ograve", "Uacute", "Ucircumflex", "Ugrave", |
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| 152 | "dotlessi", "circumflex", "tilde", "macron", |
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| 153 | "breve", "dotaccent", "ring", "cedilla", |
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| 154 | "hungarumlaut", "ogonek", "caron", "Lslash", |
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| 155 | "lslash", "Scaron", "scaron", "Zcaron", |
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| 156 | "zcaron", "brokenbar", "Eth", "eth", |
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| 157 | "Yacute", "yacute", "Thorn", "thorn", |
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| 158 | "minus", "multiply", "onesuperior", "twosuperior", |
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| 159 | "threesuperior", "onehalf", "onequarter", "threequarters", |
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| 160 | "franc", "Gbreve", "gbreve", "Idot", |
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| 161 | "Scedilla", "scedilla", "Cacute", "cacute", |
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| 162 | "Ccaron", "ccaron", "dmacron" |
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| 163 | }; |
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| 164 | |
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| 165 | /* other prototypes */ |
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| 166 | static void draw_composite_glyf( GLYPH *g, GLYPH *glyph_list, int glyphno, |
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| 167 | double *matrix, int level); |
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| 168 | static void draw_simple_glyf( GLYPH *g, GLYPH *glyph_list, int glyphno, |
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| 169 | double *matrix); |
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| 170 | static double f2dot14( short x); |
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| 171 | |
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| 172 | /* get the TTF description table address and length for this index */ |
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| 173 | |
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| 174 | static void |
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| 175 | get_glyf_table( |
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| 176 | int glyphno, |
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| 177 | TTF_GLYF **tab, |
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| 178 | int *len |
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| 179 | ) |
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| 180 | { |
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| 181 | if(tab!=NULL) { |
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| 182 | if (long_offsets) { |
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| 183 | *tab = (TTF_GLYF *) (glyf_start + ntohl(long_loca_table[glyphno])); |
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| 184 | } else { |
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| 185 | *tab = (TTF_GLYF *) (glyf_start + (ntohs(short_loca_table[glyphno]) << 1)); |
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| 186 | } |
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| 187 | } |
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| 188 | if(len!=NULL) { |
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| 189 | if (long_offsets) { |
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| 190 | *len = ntohl(long_loca_table[glyphno + 1]) - ntohl(long_loca_table[glyphno]); |
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| 191 | } else { |
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| 192 | *len = (ntohs(short_loca_table[glyphno + 1]) - ntohs(short_loca_table[glyphno])) << 1; |
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| 193 | } |
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| 194 | } |
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| 195 | } |
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| 196 | |
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| 197 | static void |
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| 198 | handle_name(void) |
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| 199 | { |
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| 200 | int j, k, lang, len, platform; |
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| 201 | char *p, *string_area; |
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| 202 | int found3 = 0; |
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| 203 | |
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| 204 | string_area = (char *) name_table + ntohs(name_table->offset); |
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| 205 | name_record = &(name_table->nameRecords); |
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| 206 | |
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| 207 | for (j = 0; j < 8; j++) { |
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| 208 | name_fields[j] = ""; |
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| 209 | } |
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| 210 | |
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| 211 | for (j = 0; j < ntohs(name_table->numberOfNameRecords); j++) { |
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| 212 | |
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| 213 | platform = ntohs(name_record->platformID); |
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| 214 | |
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| 215 | if (platform == 3) { |
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| 216 | |
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| 217 | found3 = 1; |
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| 218 | lang = ntohs(name_record->languageID) & 0xff; |
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| 219 | len = ntohs(name_record->stringLength); |
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| 220 | if (lang == 0 || lang == 9) { |
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| 221 | k = ntohs(name_record->nameID); |
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| 222 | if (k < 8) { |
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| 223 | p = string_area + ntohs(name_record->stringOffset); |
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| 224 | name_fields[k] = dupcnstring(p, len); |
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| 225 | } |
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| 226 | } |
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| 227 | } |
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| 228 | name_record++; |
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| 229 | } |
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| 230 | |
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| 231 | string_area = (char *) name_table + ntohs(name_table->offset); |
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| 232 | name_record = &(name_table->nameRecords); |
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| 233 | |
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| 234 | if (!found3) { |
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| 235 | for (j = 0; j < ntohs(name_table->numberOfNameRecords); j++) { |
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| 236 | |
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| 237 | platform = ntohs(name_record->platformID); |
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| 238 | |
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| 239 | if (platform == 1) { |
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| 240 | |
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| 241 | found3 = 1; |
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| 242 | lang = ntohs(name_record->languageID) & 0xff; |
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| 243 | len = ntohs(name_record->stringLength); |
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| 244 | if (lang == 0 || lang == 9) { |
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| 245 | k = ntohs(name_record->nameID); |
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| 246 | if (k < 8) { |
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| 247 | p = string_area + ntohs(name_record->stringOffset); |
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| 248 | name_fields[k] = dupcnstring(p, len); |
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| 249 | } |
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| 250 | } |
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| 251 | } |
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| 252 | name_record++; |
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| 253 | } |
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| 254 | } |
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| 255 | if (!found3) { |
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| 256 | fprintf(stderr, "**** Cannot decode font name fields ****\n"); |
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| 257 | exit(1); |
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| 258 | } |
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| 259 | if (name_fields[4][0] == 0) { /* Full Name empty, use Family Name */ |
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| 260 | name_fields[4] = name_fields[1]; |
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| 261 | } |
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| 262 | if (name_fields[6][0] == 0) { /* Font Name empty, use Full Name */ |
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| 263 | name_fields[6] = name_fields[4]; |
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| 264 | if (name_fields[6][0] == 0) { /* oops, empty again */ |
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| 265 | WARNING_1 fprintf(stderr, "Font name is unknown, setting to \"Unknown\"\n"); |
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| 266 | name_fields[6] = "Unknown"; |
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| 267 | } |
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| 268 | } |
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| 269 | p = name_fields[6]; |
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| 270 | /* must not start with a digit */ |
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| 271 | if(isdigit(*p)) |
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| 272 | *p+= 'A'-'0'; /* change to a letter */ |
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| 273 | while (*p != '\0') { |
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| 274 | if (!isalnum(*p) || *p=='_') { |
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| 275 | *p = '-'; |
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| 276 | } |
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| 277 | p++; |
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| 278 | } |
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| 279 | } |
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| 280 | |
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| 281 | static void |
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| 282 | handle_head(void) |
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| 283 | { |
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| 284 | long_offsets = ntohs(head_table->indexToLocFormat); |
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| 285 | if (long_offsets != 0 && long_offsets != 1) { |
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| 286 | fprintf(stderr, "**** indexToLocFormat wrong ****\n"); |
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| 287 | exit(1); |
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| 288 | } |
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| 289 | } |
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| 290 | |
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| 291 | /* limit the recursion level to avoid cycles */ |
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| 292 | #define MAX_COMPOSITE_LEVEL 20 |
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| 293 | |
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| 294 | static void |
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| 295 | draw_composite_glyf( |
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| 296 | GLYPH *g, |
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| 297 | GLYPH *glyph_list, |
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| 298 | int glyphno, |
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| 299 | double *orgmatrix, |
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| 300 | int level |
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| 301 | ) |
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| 302 | { |
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| 303 | int len; |
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| 304 | short ncontours; |
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| 305 | USHORT flagbyte, glyphindex; |
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| 306 | double arg1, arg2; |
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| 307 | BYTE *ptr; |
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| 308 | char *bptr; |
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| 309 | SHORT *sptr; |
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| 310 | double matrix[6], newmatrix[6]; |
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| 311 | |
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| 312 | get_glyf_table(glyphno, &glyf_table, &len); |
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| 313 | |
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| 314 | if(len<=0) /* nothing to do */ |
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| 315 | return; |
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| 316 | |
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| 317 | ncontours = ntohs(glyf_table->numberOfContours); |
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| 318 | if (ncontours >= 0) { /* simple case */ |
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| 319 | draw_simple_glyf(g, glyph_list, glyphno, orgmatrix); |
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| 320 | return; |
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| 321 | } |
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| 322 | |
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| 323 | if(ISDBG(COMPOSITE) && level ==0) |
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| 324 | fprintf(stderr, "* %s [ %.2f %.2f %.2f %.2f %.2f %.2f ]\n", g->name, |
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| 325 | orgmatrix[0], orgmatrix[1], orgmatrix[2], orgmatrix[3], |
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| 326 | orgmatrix[4], orgmatrix[5]); |
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| 327 | |
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| 328 | /* complex case */ |
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| 329 | if(level >= MAX_COMPOSITE_LEVEL) { |
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| 330 | WARNING_1 fprintf(stderr, |
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| 331 | "*** Glyph %s: stopped (possibly infinite) recursion at depth %d\n", |
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| 332 | g->name, level); |
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| 333 | return; |
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| 334 | } |
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| 335 | |
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| 336 | ptr = ((BYTE *) glyf_table + sizeof(TTF_GLYF)); |
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| 337 | sptr = (SHORT *) ptr; |
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| 338 | do { |
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| 339 | flagbyte = ntohs(*sptr); |
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| 340 | sptr++; |
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| 341 | glyphindex = ntohs(*sptr); |
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| 342 | sptr++; |
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| 343 | |
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| 344 | if (flagbyte & ARG_1_AND_2_ARE_WORDS) { |
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| 345 | arg1 = (short)ntohs(*sptr); |
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| 346 | sptr++; |
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| 347 | arg2 = (short)ntohs(*sptr); |
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| 348 | sptr++; |
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| 349 | } else { |
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| 350 | bptr = (char *) sptr; |
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| 351 | arg1 = (signed char) bptr[0]; |
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| 352 | arg2 = (signed char) bptr[1]; |
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| 353 | sptr++; |
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| 354 | } |
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| 355 | matrix[1] = matrix[2] = 0.0; |
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| 356 | |
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| 357 | if (flagbyte & WE_HAVE_A_SCALE) { |
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| 358 | matrix[0] = matrix[3] = f2dot14(*sptr); |
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| 359 | sptr++; |
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| 360 | } else if (flagbyte & WE_HAVE_AN_X_AND_Y_SCALE) { |
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| 361 | matrix[0] = f2dot14(*sptr); |
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| 362 | sptr++; |
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| 363 | matrix[3] = f2dot14(*sptr); |
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| 364 | sptr++; |
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| 365 | } else if (flagbyte & WE_HAVE_A_TWO_BY_TWO) { |
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| 366 | matrix[0] = f2dot14(*sptr); |
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| 367 | sptr++; |
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| 368 | matrix[2] = f2dot14(*sptr); |
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| 369 | sptr++; |
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| 370 | matrix[1] = f2dot14(*sptr); |
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| 371 | sptr++; |
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| 372 | matrix[3] = f2dot14(*sptr); |
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| 373 | sptr++; |
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| 374 | } else { |
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| 375 | matrix[0] = matrix[3] = 1.0; |
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| 376 | } |
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| 377 | |
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| 378 | /* |
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| 379 | * See * |
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| 380 | * http://fonts.apple.com/TTRefMan/RM06/Chap6g |
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| 381 | * lyf.html * matrix[0,1,2,3,4,5]=a,b,c,d,m,n |
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| 382 | */ |
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| 383 | |
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| 384 | if (fabs(matrix[0]) > fabs(matrix[1])) |
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| 385 | matrix[4] = fabs(matrix[0]); |
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| 386 | else |
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| 387 | matrix[4] = fabs(matrix[1]); |
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| 388 | if (fabs(fabs(matrix[0]) - fabs(matrix[2])) <= 33. / 65536.) |
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| 389 | matrix[4] *= 2.0; |
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| 390 | |
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| 391 | if (fabs(matrix[2]) > fabs(matrix[3])) |
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| 392 | matrix[5] = fabs(matrix[2]); |
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| 393 | else |
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| 394 | matrix[5] = fabs(matrix[3]); |
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| 395 | if (fabs(fabs(matrix[2]) - fabs(matrix[3])) <= 33. / 65536.) |
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| 396 | matrix[5] *= 2.0; |
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| 397 | |
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| 398 | /* |
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| 399 | * fprintf (stderr,"Matrix Opp %hd |
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| 400 | * %hd\n",arg1,arg2); |
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| 401 | */ |
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| 402 | #if 0 |
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| 403 | fprintf(stderr, "Matrix: %f %f %f %f %f %f\n", |
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| 404 | matrix[0], matrix[1], matrix[2], matrix[3], |
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| 405 | matrix[4], matrix[5]); |
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| 406 | fprintf(stderr, "Offset: %f %f (%s)\n", |
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| 407 | arg1, arg2, |
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| 408 | ((flagbyte & ARGS_ARE_XY_VALUES) ? "XY" : "index")); |
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| 409 | #endif |
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| 410 | |
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| 411 | if (flagbyte & ARGS_ARE_XY_VALUES) { |
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| 412 | matrix[4] *= arg1; |
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| 413 | matrix[5] *= arg2; |
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| 414 | } else { |
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| 415 | WARNING_1 fprintf(stderr, |
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| 416 | "*** Glyph %s: reusing scale from another glyph is unsupported\n", |
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| 417 | g->name); |
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| 418 | /* |
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| 419 | * must extract values from a glyph |
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| 420 | * but it seems to be too much pain |
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| 421 | * and it's not clear now that it |
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| 422 | * would be really used in any |
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| 423 | * interesting font |
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| 424 | */ |
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| 425 | } |
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| 426 | |
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| 427 | /* at this point arg1,arg2 contain what logically should be matrix[4,5] */ |
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| 428 | |
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| 429 | /* combine matrices */ |
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| 430 | |
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| 431 | newmatrix[0] = orgmatrix[0]*matrix[0] + orgmatrix[2]*matrix[1]; |
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| 432 | newmatrix[1] = orgmatrix[0]*matrix[2] + orgmatrix[2]*matrix[3]; |
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| 433 | |
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| 434 | newmatrix[2] = orgmatrix[1]*matrix[0] + orgmatrix[3]*matrix[1]; |
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| 435 | newmatrix[3] = orgmatrix[1]*matrix[2] + orgmatrix[3]*matrix[3]; |
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| 436 | |
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| 437 | newmatrix[4] = orgmatrix[0]*matrix[4] + orgmatrix[2]*matrix[5] + orgmatrix[4]; |
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| 438 | newmatrix[5] = orgmatrix[1]*matrix[4] + orgmatrix[3]*matrix[5] + orgmatrix[5]; |
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| 439 | |
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| 440 | if(ISDBG(COMPOSITE)) { |
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| 441 | fprintf(stderr, "%*c+-> %2d %s [ %.2f %.2f %.2f %.2f %.2f %.2f ]\n", |
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| 442 | level+1, ' ', level, glyph_list[glyphindex].name, |
---|
| 443 | matrix[0], matrix[1], matrix[2], matrix[3], |
---|
| 444 | matrix[4], matrix[5]); |
---|
| 445 | fprintf(stderr, "%*c = [ %.2f %.2f %.2f %.2f %.2f %.2f ]\n", |
---|
| 446 | level+1, ' ', |
---|
| 447 | newmatrix[0], newmatrix[1], newmatrix[2], newmatrix[3], |
---|
| 448 | newmatrix[4], newmatrix[5]); |
---|
| 449 | } |
---|
| 450 | draw_composite_glyf(g, glyph_list, glyphindex, newmatrix, level+1); |
---|
| 451 | |
---|
| 452 | } while (flagbyte & MORE_COMPONENTS); |
---|
| 453 | } |
---|
| 454 | |
---|
| 455 | static void |
---|
| 456 | draw_simple_glyf( |
---|
| 457 | GLYPH *g, |
---|
| 458 | GLYPH *glyph_list, |
---|
| 459 | int glyphno, |
---|
| 460 | double *matrix |
---|
| 461 | ) |
---|
| 462 | { |
---|
| 463 | int i, j, k, k1, len, first, cs, ce; |
---|
| 464 | /* We assume that hsbw always sets to(0, 0) */ |
---|
| 465 | double xlast = 0, ylast = 0; |
---|
| 466 | int finished, nguide, contour_start, contour_end; |
---|
| 467 | short ncontours, n_inst, last_point; |
---|
| 468 | USHORT *contour_end_pt; |
---|
| 469 | BYTE *ptr; |
---|
| 470 | #define GLYFSZ 2000 |
---|
| 471 | short xabs[GLYFSZ], yabs[GLYFSZ], xrel[GLYFSZ], yrel[GLYFSZ]; |
---|
| 472 | double xcoord[GLYFSZ], ycoord[GLYFSZ]; |
---|
| 473 | BYTE flags[GLYFSZ]; |
---|
| 474 | double tx, ty; |
---|
| 475 | int needreverse = 0; /* transformation may require |
---|
| 476 | * that */ |
---|
| 477 | GENTRY *lge; |
---|
| 478 | |
---|
| 479 | lge = g->lastentry; |
---|
| 480 | |
---|
| 481 | get_glyf_table(glyphno, &glyf_table, &len); |
---|
| 482 | |
---|
| 483 | if (len <= 0) { |
---|
| 484 | WARNING_1 fprintf(stderr, |
---|
| 485 | "**** Composite glyph %s refers to non-existent glyph %s, ignored\n", |
---|
| 486 | g->name, |
---|
| 487 | glyph_list[glyphno].name); |
---|
| 488 | return; |
---|
| 489 | } |
---|
| 490 | ncontours = ntohs(glyf_table->numberOfContours); |
---|
| 491 | if (ncontours < 0) { |
---|
| 492 | WARNING_1 fprintf(stderr, |
---|
| 493 | "**** Composite glyph %s refers to composite glyph %s, ignored\n", |
---|
| 494 | g->name, |
---|
| 495 | glyph_list[glyphno].name); |
---|
| 496 | return; |
---|
| 497 | } |
---|
| 498 | contour_end_pt = (USHORT *) ((char *) glyf_table + sizeof(TTF_GLYF)); |
---|
| 499 | |
---|
| 500 | last_point = ntohs(contour_end_pt[ncontours - 1]); |
---|
| 501 | n_inst = ntohs(contour_end_pt[ncontours]); |
---|
| 502 | |
---|
| 503 | ptr = ((BYTE *) contour_end_pt) + (ncontours << 1) + n_inst + 2; |
---|
| 504 | j = k = 0; |
---|
| 505 | while (k <= last_point) { |
---|
| 506 | flags[k] = ptr[j]; |
---|
| 507 | |
---|
| 508 | if (ptr[j] & REPEAT) { |
---|
| 509 | for (k1 = 0; k1 < ptr[j + 1]; k1++) { |
---|
| 510 | k++; |
---|
| 511 | flags[k] = ptr[j]; |
---|
| 512 | } |
---|
| 513 | j++; |
---|
| 514 | } |
---|
| 515 | j++; |
---|
| 516 | k++; |
---|
| 517 | } |
---|
| 518 | |
---|
| 519 | for (k = 0; k <= last_point; k++) { |
---|
| 520 | if (flags[k] & XSHORT) { |
---|
| 521 | if (flags[k] & XSAME) { |
---|
| 522 | xrel[k] = ptr[j]; |
---|
| 523 | } else { |
---|
| 524 | xrel[k] = -ptr[j]; |
---|
| 525 | } |
---|
| 526 | j++; |
---|
| 527 | } else if (flags[k] & XSAME) { |
---|
| 528 | xrel[k] = 0.0; |
---|
| 529 | } else { |
---|
| 530 | xrel[k] = (short)( ptr[j] * 256 + ptr[j + 1] ); |
---|
| 531 | j += 2; |
---|
| 532 | } |
---|
| 533 | if (k == 0) { |
---|
| 534 | xabs[k] = xrel[k]; |
---|
| 535 | } else { |
---|
| 536 | xabs[k] = xrel[k] + xabs[k - 1]; |
---|
| 537 | } |
---|
| 538 | |
---|
| 539 | } |
---|
| 540 | |
---|
| 541 | for (k = 0; k <= last_point; k++) { |
---|
| 542 | if (flags[k] & YSHORT) { |
---|
| 543 | if (flags[k] & YSAME) { |
---|
| 544 | yrel[k] = ptr[j]; |
---|
| 545 | } else { |
---|
| 546 | yrel[k] = -ptr[j]; |
---|
| 547 | } |
---|
| 548 | j++; |
---|
| 549 | } else if (flags[k] & YSAME) { |
---|
| 550 | yrel[k] = 0; |
---|
| 551 | } else { |
---|
| 552 | yrel[k] = ptr[j] * 256 + ptr[j + 1]; |
---|
| 553 | j += 2; |
---|
| 554 | } |
---|
| 555 | if (k == 0) { |
---|
| 556 | yabs[k] = yrel[k]; |
---|
| 557 | } else { |
---|
| 558 | yabs[k] = yrel[k] + yabs[k - 1]; |
---|
| 559 | } |
---|
| 560 | } |
---|
| 561 | |
---|
| 562 | if (matrix) { |
---|
| 563 | for (i = 0; i <= last_point; i++) { |
---|
| 564 | tx = xabs[i]; |
---|
| 565 | ty = yabs[i]; |
---|
| 566 | xcoord[i] = fscale(matrix[0] * tx + matrix[2] * ty + matrix[4]); |
---|
| 567 | ycoord[i] = fscale(matrix[1] * tx + matrix[3] * ty + matrix[5]); |
---|
| 568 | } |
---|
| 569 | } else { |
---|
| 570 | for (i = 0; i <= last_point; i++) { |
---|
| 571 | xcoord[i] = fscale(xabs[i]); |
---|
| 572 | ycoord[i] = fscale(yabs[i]); |
---|
| 573 | } |
---|
| 574 | } |
---|
| 575 | |
---|
| 576 | i = j = 0; |
---|
| 577 | first = 1; |
---|
| 578 | |
---|
| 579 | while (i <= ntohs(contour_end_pt[ncontours - 1])) { |
---|
| 580 | contour_end = ntohs(contour_end_pt[j]); |
---|
| 581 | |
---|
| 582 | if (first) { |
---|
| 583 | fg_rmoveto(g, xcoord[i], ycoord[i]); |
---|
| 584 | xlast = xcoord[i]; |
---|
| 585 | ylast = ycoord[i]; |
---|
| 586 | contour_start = i; |
---|
| 587 | first = 0; |
---|
| 588 | } else if (flags[i] & ONOROFF) { |
---|
| 589 | fg_rlineto(g, xcoord[i], ycoord[i]); |
---|
| 590 | xlast = xcoord[i]; |
---|
| 591 | ylast = ycoord[i]; |
---|
| 592 | } else { |
---|
| 593 | cs = i - 1; |
---|
| 594 | finished = nguide = 0; |
---|
| 595 | while (!finished) { |
---|
| 596 | if (i == contour_end + 1) { |
---|
| 597 | ce = contour_start; |
---|
| 598 | finished = 1; |
---|
| 599 | } else if (flags[i] & ONOROFF) { |
---|
| 600 | ce = i; |
---|
| 601 | finished = 1; |
---|
| 602 | } else { |
---|
| 603 | i++; |
---|
| 604 | nguide++; |
---|
| 605 | } |
---|
| 606 | } |
---|
| 607 | |
---|
| 608 | switch (nguide) { |
---|
| 609 | case 0: |
---|
| 610 | fg_rlineto(g, xcoord[ce], ycoord[ce]); |
---|
| 611 | xlast = xcoord[ce]; |
---|
| 612 | ylast = ycoord[ce]; |
---|
| 613 | break; |
---|
| 614 | |
---|
| 615 | case 1: |
---|
| 616 | fg_rrcurveto(g, |
---|
| 617 | (xcoord[cs] + 2.0 * xcoord[cs + 1]) / 3.0, |
---|
| 618 | (ycoord[cs] + 2.0 * ycoord[cs + 1]) / 3.0, |
---|
| 619 | (2.0 * xcoord[cs + 1] + xcoord[ce]) / 3.0, |
---|
| 620 | (2.0 * ycoord[cs + 1] + ycoord[ce]) / 3.0, |
---|
| 621 | xcoord[ce], |
---|
| 622 | ycoord[ce] |
---|
| 623 | ); |
---|
| 624 | xlast = xcoord[ce]; |
---|
| 625 | ylast = ycoord[ce]; |
---|
| 626 | |
---|
| 627 | break; |
---|
| 628 | |
---|
| 629 | case 2: |
---|
| 630 | fg_rrcurveto(g, |
---|
| 631 | (-xcoord[cs] + 4.0 * xcoord[cs + 1]) / 3.0, |
---|
| 632 | (-ycoord[cs] + 4.0 * ycoord[cs + 1]) / 3.0, |
---|
| 633 | (4.0 * xcoord[cs + 2] - xcoord[ce]) / 3.0, |
---|
| 634 | (4.0 * ycoord[cs + 2] - ycoord[ce]) / 3.0, |
---|
| 635 | xcoord[ce], |
---|
| 636 | ycoord[ce] |
---|
| 637 | ); |
---|
| 638 | xlast = xcoord[ce]; |
---|
| 639 | ylast = ycoord[ce]; |
---|
| 640 | break; |
---|
| 641 | |
---|
| 642 | case 3: |
---|
| 643 | fg_rrcurveto(g, |
---|
| 644 | (xcoord[cs] + 2.0 * xcoord[cs + 1]) / 3.0, |
---|
| 645 | (ycoord[cs] + 2.0 * ycoord[cs + 1]) / 3.0, |
---|
| 646 | (5.0 * xcoord[cs + 1] + xcoord[cs + 2]) / 6.0, |
---|
| 647 | (5.0 * ycoord[cs + 1] + ycoord[cs + 2]) / 6.0, |
---|
| 648 | (xcoord[cs + 1] + xcoord[cs + 2]) / 2.0, |
---|
| 649 | (ycoord[cs + 1] + ycoord[cs + 2]) / 2.0 |
---|
| 650 | ); |
---|
| 651 | |
---|
| 652 | fg_rrcurveto(g, |
---|
| 653 | (xcoord[cs + 1] + 5.0 * xcoord[cs + 2]) / 6.0, |
---|
| 654 | (ycoord[cs + 1] + 5.0 * ycoord[cs + 2]) / 6.0, |
---|
| 655 | (5.0 * xcoord[cs + 2] + xcoord[cs + 3]) / 6.0, |
---|
| 656 | (5.0 * ycoord[cs + 2] + ycoord[cs + 3]) / 6.0, |
---|
| 657 | (xcoord[cs + 3] + xcoord[cs + 2]) / 2.0, |
---|
| 658 | (ycoord[cs + 3] + ycoord[cs + 2]) / 2.0 |
---|
| 659 | ); |
---|
| 660 | |
---|
| 661 | fg_rrcurveto(g, |
---|
| 662 | (xcoord[cs + 2] + 5.0 * xcoord[cs + 3]) / 6.0, |
---|
| 663 | (ycoord[cs + 2] + 5.0 * ycoord[cs + 3]) / 6.0, |
---|
| 664 | (2.0 * xcoord[cs + 3] + xcoord[ce]) / 3.0, |
---|
| 665 | (2.0 * ycoord[cs + 3] + ycoord[ce]) / 3.0, |
---|
| 666 | xcoord[ce], |
---|
| 667 | ycoord[ce] |
---|
| 668 | ); |
---|
| 669 | ylast = ycoord[ce]; |
---|
| 670 | xlast = xcoord[ce]; |
---|
| 671 | |
---|
| 672 | break; |
---|
| 673 | |
---|
| 674 | default: |
---|
| 675 | k1 = cs + nguide; |
---|
| 676 | fg_rrcurveto(g, |
---|
| 677 | (xcoord[cs] + 2.0 * xcoord[cs + 1]) / 3.0, |
---|
| 678 | (ycoord[cs] + 2.0 * ycoord[cs + 1]) / 3.0, |
---|
| 679 | (5.0 * xcoord[cs + 1] + xcoord[cs + 2]) / 6.0, |
---|
| 680 | (5.0 * ycoord[cs + 1] + ycoord[cs + 2]) / 6.0, |
---|
| 681 | (xcoord[cs + 1] + xcoord[cs + 2]) / 2.0, |
---|
| 682 | (ycoord[cs + 1] + ycoord[cs + 2]) / 2.0 |
---|
| 683 | ); |
---|
| 684 | |
---|
| 685 | for (k = cs + 2; k <= k1 - 1; k++) { |
---|
| 686 | fg_rrcurveto(g, |
---|
| 687 | (xcoord[k - 1] + 5.0 * xcoord[k]) / 6.0, |
---|
| 688 | (ycoord[k - 1] + 5.0 * ycoord[k]) / 6.0, |
---|
| 689 | (5.0 * xcoord[k] + xcoord[k + 1]) / 6.0, |
---|
| 690 | (5.0 * ycoord[k] + ycoord[k + 1]) / 6.0, |
---|
| 691 | (xcoord[k] + xcoord[k + 1]) / 2.0, |
---|
| 692 | (ycoord[k] + ycoord[k + 1]) / 2.0 |
---|
| 693 | ); |
---|
| 694 | |
---|
| 695 | } |
---|
| 696 | |
---|
| 697 | fg_rrcurveto(g, |
---|
| 698 | (xcoord[k1 - 1] + 5.0 * xcoord[k1]) / 6.0, |
---|
| 699 | (ycoord[k1 - 1] + 5.0 * ycoord[k1]) / 6.0, |
---|
| 700 | (2.0 * xcoord[k1] + xcoord[ce]) / 3.0, |
---|
| 701 | (2.0 * ycoord[k1] + ycoord[ce]) / 3.0, |
---|
| 702 | xcoord[ce], |
---|
| 703 | ycoord[ce] |
---|
| 704 | ); |
---|
| 705 | xlast = xcoord[ce]; |
---|
| 706 | ylast = ycoord[ce]; |
---|
| 707 | |
---|
| 708 | break; |
---|
| 709 | } |
---|
| 710 | } |
---|
| 711 | if (i >= contour_end) { |
---|
| 712 | g_closepath(g); |
---|
| 713 | first = 1; |
---|
| 714 | i = contour_end + 1; |
---|
| 715 | j++; |
---|
| 716 | } else { |
---|
| 717 | i++; |
---|
| 718 | } |
---|
| 719 | } |
---|
| 720 | |
---|
| 721 | if (matrix) { |
---|
| 722 | /* guess whether do we need to reverse the results */ |
---|
| 723 | |
---|
| 724 | double x[3], y[3]; |
---|
| 725 | int max = 0, from, to; |
---|
| 726 | |
---|
| 727 | /* transform a triangle going in proper direction */ |
---|
| 728 | /* |
---|
| 729 | * the origin of triangle is in (0,0) so we know it in |
---|
| 730 | * advance |
---|
| 731 | */ |
---|
| 732 | |
---|
| 733 | x[0] = y[0] = 0; |
---|
| 734 | x[1] = matrix[0] * 0 + matrix[2] * 300; |
---|
| 735 | y[1] = matrix[1] * 0 + matrix[3] * 300; |
---|
| 736 | x[2] = matrix[0] * 300 + matrix[2] * 0; |
---|
| 737 | y[2] = matrix[1] * 300 + matrix[3] * 0; |
---|
| 738 | |
---|
| 739 | /* then find the topmost point */ |
---|
| 740 | for (i = 0; i < 3; i++) |
---|
| 741 | if (y[i] > y[max]) |
---|
| 742 | max = i; |
---|
| 743 | from = (max + 3 - 1) % 3; |
---|
| 744 | to = (max + 1) % 3; |
---|
| 745 | |
---|
| 746 | needreverse = 0; |
---|
| 747 | |
---|
| 748 | /* special cases for horizontal lines */ |
---|
| 749 | if (y[max] == y[from]) { |
---|
| 750 | if (x[max] < y[from]) |
---|
| 751 | needreverse = 1; |
---|
| 752 | } else if (y[to] == y[from]) { |
---|
| 753 | if (x[to] < x[max]) |
---|
| 754 | needreverse = 1; |
---|
| 755 | } else { /* generic case */ |
---|
| 756 | if ((x[to] - x[max]) * (y[max] - y[from]) |
---|
| 757 | > (x[max] - x[from]) * (y[to] - y[max])) |
---|
| 758 | needreverse = 1; |
---|
| 759 | } |
---|
| 760 | |
---|
| 761 | if (needreverse) { |
---|
| 762 | if (lge) { |
---|
| 763 | assertpath(lge->next, __FILE__, __LINE__, g->name); |
---|
| 764 | reversepathsfromto(lge->next, NULL); |
---|
| 765 | } else { |
---|
| 766 | assertpath(g->entries, __FILE__, __LINE__, g->name); |
---|
| 767 | reversepaths(g); |
---|
| 768 | } |
---|
| 769 | } |
---|
| 770 | } |
---|
| 771 | } |
---|
| 772 | |
---|
| 773 | static double |
---|
| 774 | f2dot14( |
---|
| 775 | short x |
---|
| 776 | ) |
---|
| 777 | { |
---|
| 778 | short y = ntohs(x); |
---|
| 779 | return (y >> 14) + ((y & 0x3fff) / 16384.0); |
---|
| 780 | } |
---|
| 781 | |
---|
| 782 | |
---|
| 783 | /* check that the pointer points within the file */ |
---|
| 784 | /* returns 0 if pointer is good, 1 if bad */ |
---|
| 785 | static int |
---|
| 786 | badpointer( |
---|
| 787 | void *ptr |
---|
| 788 | ) |
---|
| 789 | { |
---|
| 790 | return (ptr < (void *)filebuffer || ptr >= (void *)filebuffer_end); |
---|
| 791 | } |
---|
| 792 | |
---|
| 793 | /* |
---|
| 794 | * Externally accessible methods |
---|
| 795 | */ |
---|
| 796 | |
---|
| 797 | /* |
---|
| 798 | * Open font and prepare to return information to the main driver. |
---|
| 799 | * May print error and warning messages. |
---|
| 800 | * Exit on error. |
---|
| 801 | */ |
---|
| 802 | |
---|
| 803 | static void |
---|
| 804 | openfont( |
---|
| 805 | char *fname, |
---|
| 806 | char *arg /* unused now */ |
---|
| 807 | ) |
---|
| 808 | { |
---|
| 809 | int i, j; |
---|
| 810 | struct stat statbuf; |
---|
| 811 | static struct { |
---|
| 812 | void **tbpp; /* pointer to pointer to the table */ |
---|
| 813 | char name[5]; /* table name */ |
---|
| 814 | char optional; /* flag: table may be missing */ |
---|
| 815 | } tables[] = { |
---|
| 816 | { (void **)&name_table, "name", 0 }, |
---|
| 817 | { (void **)&head_table, "head", 0 }, |
---|
| 818 | { (void **)&hhea_table, "hhea", 0 }, |
---|
| 819 | { (void **)&post_table, "post", 0 }, |
---|
| 820 | { (void **)&glyf_start, "glyf", 0 }, |
---|
| 821 | { (void **)&cmap_table, "cmap", 0 }, |
---|
| 822 | { (void **)&kern_table, "kern", 1 }, |
---|
| 823 | { (void **)&maxp_table, "maxp", 0 }, |
---|
| 824 | { (void **)&hmtx_table, "hmtx", 0 }, |
---|
| 825 | { (void **)&long_loca_table, "loca", 0 }, |
---|
| 826 | { NULL, "", 0 } /* end of table */ |
---|
| 827 | }; |
---|
| 828 | |
---|
| 829 | if (stat(fname, &statbuf) == -1) { |
---|
| 830 | fprintf(stderr, "**** Cannot access %s ****\n", fname); |
---|
| 831 | exit(1); |
---|
| 832 | } |
---|
| 833 | if ((filebuffer = malloc(statbuf.st_size)) == NULL) { |
---|
| 834 | fprintf(stderr, "**** Cannot malloc space for file ****\n"); |
---|
| 835 | exit(1); |
---|
| 836 | } |
---|
| 837 | |
---|
| 838 | filebuffer_end = filebuffer + statbuf.st_size; |
---|
| 839 | |
---|
| 840 | if ((ttf_file = fopen(fname, "rb")) == NULL) { |
---|
| 841 | fprintf(stderr, "**** Cannot open file '%s'\n", fname); |
---|
| 842 | exit(1); |
---|
| 843 | } else { |
---|
| 844 | WARNING_2 fprintf(stderr, "Processing file %s\n", fname); |
---|
| 845 | } |
---|
| 846 | |
---|
| 847 | if (fread(filebuffer, 1, statbuf.st_size, ttf_file) != statbuf.st_size) { |
---|
| 848 | fprintf(stderr, "**** Could not read whole file \n"); |
---|
| 849 | exit(1); |
---|
| 850 | } |
---|
| 851 | fclose(ttf_file); |
---|
| 852 | |
---|
| 853 | directory = (TTF_DIRECTORY *) filebuffer; |
---|
| 854 | |
---|
| 855 | if (ntohl(directory->sfntVersion) != 0x00010000) { |
---|
| 856 | fprintf(stderr, |
---|
| 857 | "**** Unknown File Version number [%x], or not a TrueType file\n", |
---|
| 858 | directory->sfntVersion); |
---|
| 859 | exit(1); |
---|
| 860 | } |
---|
| 861 | |
---|
| 862 | /* clear the tables */ |
---|
| 863 | for(j=0; tables[j].tbpp != NULL; j++) |
---|
| 864 | *(tables[j].tbpp) = NULL; |
---|
| 865 | |
---|
| 866 | dir_entry = &(directory->list); |
---|
| 867 | |
---|
| 868 | for (i = 0; i < ntohs(directory->numTables); i++) { |
---|
| 869 | |
---|
| 870 | for(j=0; tables[j].tbpp != NULL; j++) |
---|
| 871 | if (memcmp(dir_entry->tag, tables[j].name, 4) == 0) { |
---|
| 872 | *(tables[j].tbpp) = (void *) (filebuffer + ntohl(dir_entry->offset)); |
---|
| 873 | break; |
---|
| 874 | } |
---|
| 875 | |
---|
| 876 | if (memcmp(dir_entry->tag, "EBDT", 4) == 0 || |
---|
| 877 | memcmp(dir_entry->tag, "EBLC", 4) == 0 || |
---|
| 878 | memcmp(dir_entry->tag, "EBSC", 4) == 0) { |
---|
| 879 | WARNING_1 fprintf(stderr, "Font contains bitmaps\n"); |
---|
| 880 | } |
---|
| 881 | dir_entry++; |
---|
| 882 | } |
---|
| 883 | |
---|
| 884 | for(j=0; tables[j].tbpp != NULL; j++) |
---|
| 885 | if(!tables[j].optional && badpointer( *(tables[j].tbpp) )) { |
---|
| 886 | fprintf(stderr, "**** File contains no required table '%s'\n", tables[j].name); |
---|
| 887 | exit(1); |
---|
| 888 | } |
---|
| 889 | |
---|
| 890 | handle_name(); |
---|
| 891 | |
---|
| 892 | handle_head(); |
---|
| 893 | |
---|
| 894 | ttf_nglyphs = ntohs(maxp_table->numGlyphs); |
---|
| 895 | |
---|
| 896 | enc_found_ms = enc_found_mac = 0; |
---|
| 897 | } |
---|
| 898 | |
---|
| 899 | /* |
---|
| 900 | * Close font. |
---|
| 901 | * Exit on error. |
---|
| 902 | */ |
---|
| 903 | |
---|
| 904 | static void |
---|
| 905 | closefont( |
---|
| 906 | void |
---|
| 907 | ) |
---|
| 908 | { |
---|
| 909 | return; /* empty operation */ |
---|
| 910 | } |
---|
| 911 | |
---|
| 912 | /* |
---|
| 913 | * Get the number of glyphs in font. |
---|
| 914 | */ |
---|
| 915 | |
---|
| 916 | static int |
---|
| 917 | getnglyphs ( |
---|
| 918 | void |
---|
| 919 | ) |
---|
| 920 | { |
---|
| 921 | return ttf_nglyphs; |
---|
| 922 | } |
---|
| 923 | |
---|
| 924 | /* |
---|
| 925 | * Get the names of the glyphs. |
---|
| 926 | * Returns 0 if the names were assigned, non-zero if the font |
---|
| 927 | * provides no glyph names. |
---|
| 928 | */ |
---|
| 929 | |
---|
| 930 | static int |
---|
| 931 | glnames( |
---|
| 932 | GLYPH *glyph_list |
---|
| 933 | ) |
---|
| 934 | { |
---|
| 935 | int i, len, n, npost; |
---|
| 936 | unsigned int format; |
---|
| 937 | USHORT *name_index; |
---|
| 938 | char *ptr, *p; |
---|
| 939 | char **ps_name_ptr = (char **) malloc(ttf_nglyphs * sizeof(char *)); |
---|
| 940 | int n_ps_names; |
---|
| 941 | int ps_fmt_3 = 0; |
---|
| 942 | |
---|
| 943 | format = ntohl(post_table->formatType); |
---|
| 944 | |
---|
| 945 | if (format == 0x00010000) { |
---|
| 946 | for (i = 0; i < 258 && i < ttf_nglyphs; i++) { |
---|
| 947 | glyph_list[i].name = mac_glyph_names[i]; |
---|
| 948 | } |
---|
| 949 | } else if (format == 0x00020000) { |
---|
| 950 | npost = ntohs(post_table->numGlyphs); |
---|
| 951 | if (ttf_nglyphs != npost) { |
---|
| 952 | /* This is an error in the font, but we can now cope */ |
---|
| 953 | WARNING_1 fprintf(stderr, "**** Postscript table size mismatch %d/%d ****\n", |
---|
| 954 | npost, ttf_nglyphs); |
---|
| 955 | } |
---|
| 956 | n_ps_names = 0; |
---|
| 957 | name_index = &(post_table->glyphNameIndex); |
---|
| 958 | |
---|
| 959 | /* This checks the integrity of the post table */ |
---|
| 960 | for (i=0; i<npost; i++) { |
---|
| 961 | n = ntohs(name_index[i]); |
---|
| 962 | if (n > n_ps_names + 257) { |
---|
| 963 | n_ps_names = n - 257; |
---|
| 964 | } |
---|
| 965 | } |
---|
| 966 | |
---|
| 967 | ptr = (char *) post_table + 34 + (ttf_nglyphs << 1); |
---|
| 968 | i = 0; |
---|
| 969 | while (*ptr > 0 && i < n_ps_names) { |
---|
| 970 | len = *ptr; |
---|
| 971 | /* previously the program wrote nulls into the table. If the table |
---|
| 972 | was corrupt, this could put zeroes anywhere, leading to obscure bugs, |
---|
| 973 | so now I malloc space for the names. Yes it is much less efficient */ |
---|
| 974 | |
---|
| 975 | if ((p = malloc(len+1)) == NULL) { |
---|
| 976 | fprintf (stderr, "****malloc failed %s line %d\n", __FILE__, __LINE__); |
---|
| 977 | exit(255); |
---|
| 978 | } |
---|
| 979 | |
---|
| 980 | ps_name_ptr[i] = p; |
---|
| 981 | strncpy(p, ptr+1, len); |
---|
| 982 | p[len] = '\0'; |
---|
| 983 | i ++; |
---|
| 984 | ptr += len + 1; |
---|
| 985 | } |
---|
| 986 | |
---|
| 987 | if (i != n_ps_names) |
---|
| 988 | { |
---|
| 989 | WARNING_2 fprintf (stderr, "** Postscript Name mismatch %d != %d **\n", |
---|
| 990 | i, n_ps_names); |
---|
| 991 | n_ps_names = i; |
---|
| 992 | } |
---|
| 993 | |
---|
| 994 | /* |
---|
| 995 | * for (i=0; i<n_ps_names; i++) { fprintf(stderr, "i=%d, |
---|
| 996 | * len=%d, name=%s\n", i, ps_name_len[i], ps_name_ptr[i]); } |
---|
| 997 | */ |
---|
| 998 | |
---|
| 999 | for (i = 0; i < npost; i++) { |
---|
| 1000 | n = ntohs(name_index[i]); |
---|
| 1001 | if (n < 258) { |
---|
| 1002 | glyph_list[i].name = mac_glyph_names[n]; |
---|
| 1003 | } else if (n < 258 + n_ps_names) { |
---|
| 1004 | glyph_list[i].name = ps_name_ptr[n - 258]; |
---|
| 1005 | } else { |
---|
| 1006 | glyph_list[i].name = malloc(16); |
---|
| 1007 | sprintf(glyph_list[i].name, "_g_%d", i); |
---|
| 1008 | WARNING_2 fprintf(stderr, |
---|
| 1009 | "Glyph No. %d has no postscript name, becomes %s\n", |
---|
| 1010 | i, glyph_list[i].name); |
---|
| 1011 | } |
---|
| 1012 | } |
---|
| 1013 | /* Now fake postscript names for all those beyond the end of the table */ |
---|
| 1014 | if (npost < ttf_nglyphs) { |
---|
| 1015 | for (i=npost; i<ttf_nglyphs; i++) { |
---|
| 1016 | if ((glyph_list[i].name = malloc(16)) == NULL) |
---|
| 1017 | { |
---|
| 1018 | fprintf (stderr, "****malloc failed %s line %d\n", __FILE__, __LINE__); |
---|
| 1019 | exit(255); |
---|
| 1020 | } |
---|
| 1021 | sprintf(glyph_list[i].name, "_g_%d", i); |
---|
| 1022 | WARNING_2 fprintf(stderr, |
---|
| 1023 | "Glyph No. %d has no postscript name, becomes %s\n", |
---|
| 1024 | i, glyph_list[i].name); |
---|
| 1025 | } |
---|
| 1026 | } |
---|
| 1027 | } else if (format == 0x00030000) { |
---|
| 1028 | WARNING_3 fputs("No postscript table, using default\n", stderr); |
---|
| 1029 | ps_fmt_3 = 1; |
---|
| 1030 | } else if (format == 0x00028000) { |
---|
| 1031 | ptr = (char *) &(post_table->numGlyphs); |
---|
| 1032 | for (i = 0; i < ttf_nglyphs; i++) { |
---|
| 1033 | glyph_list[i].name = mac_glyph_names[i + ptr[i]]; |
---|
| 1034 | } |
---|
| 1035 | } else { |
---|
| 1036 | fprintf(stderr, |
---|
| 1037 | "**** Postscript table in wrong format %x ****\n", |
---|
| 1038 | format); |
---|
| 1039 | exit(1); |
---|
| 1040 | } |
---|
| 1041 | |
---|
| 1042 | return ps_fmt_3; |
---|
| 1043 | } |
---|
| 1044 | |
---|
| 1045 | /* |
---|
| 1046 | * Get the metrics of the glyphs. |
---|
| 1047 | */ |
---|
| 1048 | |
---|
| 1049 | static void |
---|
| 1050 | glmetrics( |
---|
| 1051 | GLYPH *glyph_list |
---|
| 1052 | ) |
---|
| 1053 | { |
---|
| 1054 | int i; |
---|
| 1055 | int n_hmetrics = ntohs(hhea_table->numberOfHMetrics); |
---|
| 1056 | GLYPH *g; |
---|
| 1057 | LONGHORMETRIC *hmtx_entry = hmtx_table; |
---|
| 1058 | FWORD *lsblist; |
---|
| 1059 | |
---|
| 1060 | for (i = 0; i < n_hmetrics; i++) { |
---|
| 1061 | g = &(glyph_list[i]); |
---|
| 1062 | g->width = ntohs(hmtx_entry->advanceWidth); |
---|
| 1063 | g->lsb = ntohs(hmtx_entry->lsb); |
---|
| 1064 | hmtx_entry++; |
---|
| 1065 | } |
---|
| 1066 | |
---|
| 1067 | lsblist = (FWORD *) hmtx_entry; |
---|
| 1068 | hmtx_entry--; |
---|
| 1069 | |
---|
| 1070 | for (i = n_hmetrics; i < ttf_nglyphs; i++) { |
---|
| 1071 | g = &(glyph_list[i]); |
---|
| 1072 | g->width = ntohs(hmtx_entry->advanceWidth); |
---|
| 1073 | g->lsb = ntohs(lsblist[i - n_hmetrics]); |
---|
| 1074 | } |
---|
| 1075 | |
---|
| 1076 | for (i = 0; i < ttf_nglyphs; i++) { |
---|
| 1077 | g = &(glyph_list[i]); |
---|
| 1078 | get_glyf_table(i, &glyf_table, &g->ttf_pathlen); |
---|
| 1079 | |
---|
| 1080 | g->xMin = (short)ntohs(glyf_table->xMin); |
---|
| 1081 | g->xMax = (short)ntohs(glyf_table->xMax); |
---|
| 1082 | g->yMin = (short)ntohs(glyf_table->yMin); |
---|
| 1083 | g->yMax = (short)ntohs(glyf_table->yMax); |
---|
| 1084 | } |
---|
| 1085 | |
---|
| 1086 | } |
---|
| 1087 | |
---|
| 1088 | |
---|
| 1089 | static void |
---|
| 1090 | handle_ms_encoding( |
---|
| 1091 | GLYPH *glyph_list, |
---|
| 1092 | int *encoding, |
---|
| 1093 | int *unimap |
---|
| 1094 | ) |
---|
| 1095 | { |
---|
| 1096 | int i, j, k, kk, set_ok; |
---|
| 1097 | USHORT start, end, ro; |
---|
| 1098 | short delta, n; |
---|
| 1099 | |
---|
| 1100 | for (j = 0; j < cmap_n_segs - 1; j++) { |
---|
| 1101 | start = ntohs(cmap_seg_start[j]); |
---|
| 1102 | end = ntohs(cmap_seg_end[j]); |
---|
| 1103 | delta = ntohs(cmap_idDelta[j]); |
---|
| 1104 | ro = ntohs(cmap_idRangeOffset[j]); |
---|
| 1105 | |
---|
| 1106 | for (k = start; k <= end; k++) { |
---|
| 1107 | if (ro == 0) { |
---|
| 1108 | n = k + delta; |
---|
| 1109 | } else { |
---|
| 1110 | n = ntohs(*((ro >> 1) + (k - start) + |
---|
| 1111 | &(cmap_idRangeOffset[j]))); |
---|
| 1112 | if (delta != 0) |
---|
| 1113 | { |
---|
| 1114 | /* Not exactly sure how to deal with this circumstance, |
---|
| 1115 | I suspect it never occurs */ |
---|
| 1116 | n += delta; |
---|
| 1117 | fprintf (stderr, |
---|
| 1118 | "rangeoffset and delta both non-zero - %d/%d", |
---|
| 1119 | ro, delta); |
---|
| 1120 | } |
---|
| 1121 | } |
---|
| 1122 | if(n<0 || n>=ttf_nglyphs) { |
---|
| 1123 | WARNING_1 fprintf(stderr, "Font contains a broken glyph code mapping, ignored\n"); |
---|
| 1124 | continue; |
---|
| 1125 | } |
---|
| 1126 | |
---|
| 1127 | // Find the first available orig_code slot |
---|
| 1128 | for (i = 0; i < GLYPH_MAX_ENCODINGS; i++ ) { |
---|
| 1129 | |
---|
| 1130 | if ( glyph_list[n].orig_code[i] == -1 ) |
---|
| 1131 | break; |
---|
| 1132 | |
---|
| 1133 | } |
---|
| 1134 | |
---|
| 1135 | if ( i == GLYPH_MAX_ENCODINGS ) { |
---|
| 1136 | //#if 0 |
---|
| 1137 | if (strcmp(glyph_list[n].name, ".notdef") != 0) { |
---|
| 1138 | WARNING_2 fprintf(stderr, |
---|
| 1139 | "Glyph %s has >= %d encodings (A), %4.4x & %4.4x\n", |
---|
| 1140 | GLYPH_MAX_ENCODINGS, |
---|
| 1141 | glyph_list[n].name, |
---|
| 1142 | glyph_list[n].orig_code[0], |
---|
| 1143 | k); |
---|
| 1144 | } |
---|
| 1145 | //#endif |
---|
| 1146 | set_ok = 0; |
---|
| 1147 | break; |
---|
| 1148 | } else { |
---|
| 1149 | set_ok = 1; |
---|
| 1150 | } |
---|
| 1151 | if (enc_type==1 || forcemap) { |
---|
| 1152 | kk = unicode_rev_lookup(k); |
---|
| 1153 | if(ISDBG(UNICODE)) |
---|
| 1154 | fprintf(stderr, "Unicode %s - 0x%04x\n",glyph_list[n].name,k); |
---|
| 1155 | if (set_ok) { |
---|
| 1156 | glyph_list[n].orig_code[i] = k; |
---|
| 1157 | /* glyph_list[n].char_no = kk; */ |
---|
| 1158 | } |
---|
| 1159 | if (kk >= 0 && kk < ENCTABSZ && encoding[kk] == -1) |
---|
| 1160 | encoding[kk] = n; |
---|
| 1161 | } else { |
---|
| 1162 | if ((k & 0xff00) == 0xf000) { |
---|
| 1163 | if( encoding[k & 0x00ff] == -1 ) { |
---|
| 1164 | encoding[k & 0x00ff] = n; |
---|
| 1165 | if (set_ok) { |
---|
| 1166 | /* glyph_list[n].char_no = k & 0x00ff; */ |
---|
| 1167 | glyph_list[n].orig_code[i] = k; |
---|
| 1168 | } |
---|
| 1169 | } |
---|
| 1170 | } else { |
---|
| 1171 | if (set_ok) { |
---|
| 1172 | /* glyph_list[n].char_no = k; */ |
---|
| 1173 | glyph_list[n].orig_code[i] = k; |
---|
| 1174 | } |
---|
| 1175 | WARNING_2 fprintf(stderr, |
---|
| 1176 | "Glyph %s has non-symbol encoding %4.4x\n", |
---|
| 1177 | glyph_list[n].name, |
---|
| 1178 | k & 0xffff); |
---|
| 1179 | /* |
---|
| 1180 | * just use the code |
---|
| 1181 | * as it is |
---|
| 1182 | */ |
---|
| 1183 | if ((k & ~0xff) == 0 && encoding[k] == -1 ) |
---|
| 1184 | encoding[k] = n; |
---|
| 1185 | } |
---|
| 1186 | } |
---|
| 1187 | } |
---|
| 1188 | } |
---|
| 1189 | } |
---|
| 1190 | |
---|
| 1191 | static void |
---|
| 1192 | handle_mac_encoding( |
---|
| 1193 | GLYPH *glyph_list, |
---|
| 1194 | int *encoding, |
---|
| 1195 | int *unimap |
---|
| 1196 | ) |
---|
| 1197 | { |
---|
| 1198 | short n; |
---|
| 1199 | int j, size; |
---|
| 1200 | |
---|
| 1201 | size = ntohs(encoding0->length) - 6; |
---|
| 1202 | for (j = 0; j < size; j++) { |
---|
| 1203 | n = encoding0->glyphIdArray[j]; |
---|
| 1204 | if (glyph_list[n].char_no != -1) { |
---|
| 1205 | WARNING_2 fprintf(stderr, |
---|
| 1206 | "Glyph %s has >= two encodings (B), %4.4x & %4.4x\n", |
---|
| 1207 | glyph_list[n].name, |
---|
| 1208 | glyph_list[n].char_no, |
---|
| 1209 | j); |
---|
| 1210 | } else { |
---|
| 1211 | if (j < ENCTABSZ) { |
---|
| 1212 | if(encoding[j] == -1) { |
---|
| 1213 | glyph_list[n].char_no = j; |
---|
| 1214 | encoding[j] = n; |
---|
| 1215 | } |
---|
| 1216 | } |
---|
| 1217 | } |
---|
| 1218 | } |
---|
| 1219 | } |
---|
| 1220 | |
---|
| 1221 | /* |
---|
| 1222 | * Get the original encoding of the font. |
---|
| 1223 | * Returns 1 for if the original encoding is Unicode, 2 if the |
---|
| 1224 | * original encoding is other 16-bit, 0 if 8-bit. |
---|
| 1225 | */ |
---|
| 1226 | |
---|
| 1227 | static int |
---|
| 1228 | glenc( |
---|
| 1229 | GLYPH *glyph_list, |
---|
| 1230 | int *encoding, |
---|
| 1231 | int *unimap |
---|
| 1232 | ) |
---|
| 1233 | { |
---|
| 1234 | int num_tables = ntohs(cmap_table->numberOfEncodingTables); |
---|
| 1235 | BYTE *ptr; |
---|
| 1236 | int i, format, offset, seg_c2, found; |
---|
| 1237 | int platform, encoding_id; |
---|
| 1238 | TTF_CMAP_ENTRY *table_entry; |
---|
| 1239 | TTF_CMAP_FMT4 *encoding4; |
---|
| 1240 | |
---|
| 1241 | if(enc_found_ms) { |
---|
| 1242 | handle_ms_encoding(glyph_list, encoding, unimap); |
---|
| 1243 | return enc_type; |
---|
| 1244 | } else if(enc_found_mac) { |
---|
| 1245 | handle_mac_encoding(glyph_list, encoding, unimap); |
---|
| 1246 | return 0; |
---|
| 1247 | } |
---|
| 1248 | |
---|
| 1249 | enc_type = 0; |
---|
| 1250 | found = 0; |
---|
| 1251 | |
---|
| 1252 | for (i = 0; i < num_tables && !found; i++) { |
---|
| 1253 | table_entry = &(cmap_table->encodingTable[i]); |
---|
| 1254 | offset = ntohl(table_entry->offset); |
---|
| 1255 | encoding4 = (TTF_CMAP_FMT4 *) ((BYTE *) cmap_table + offset); |
---|
| 1256 | format = ntohs(encoding4->format); |
---|
| 1257 | platform = ntohs(table_entry->platformID); |
---|
| 1258 | encoding_id = ntohs(table_entry->encodingID); |
---|
| 1259 | |
---|
| 1260 | if (format != 4) |
---|
| 1261 | continue; |
---|
| 1262 | |
---|
| 1263 | if(force_pid != -1) { |
---|
| 1264 | if(force_pid != platform || encoding_id != force_eid) |
---|
| 1265 | continue; |
---|
| 1266 | WARNING_1 fprintf(stderr, "Found Encoding PID=%d/EID=%d\n", |
---|
| 1267 | force_pid, force_eid); |
---|
| 1268 | enc_type = 1; |
---|
| 1269 | } else { |
---|
| 1270 | if (platform == 3 ) { |
---|
| 1271 | switch (encoding_id) { |
---|
| 1272 | case 0: |
---|
| 1273 | WARNING_1 fputs("Found Symbol Encoding\n", stderr); |
---|
| 1274 | break; |
---|
| 1275 | case 1: |
---|
| 1276 | WARNING_1 fputs("Found Unicode Encoding\n", stderr); |
---|
| 1277 | enc_type = 1; |
---|
| 1278 | break; |
---|
| 1279 | default: |
---|
| 1280 | WARNING_1 { |
---|
| 1281 | fprintf(stderr, |
---|
| 1282 | "****MS Encoding ID %d not supported****\n", |
---|
| 1283 | encoding_id); |
---|
| 1284 | fputs("Treating it like Symbol encoding\n", stderr); |
---|
| 1285 | } |
---|
| 1286 | break; |
---|
| 1287 | } |
---|
| 1288 | } else |
---|
| 1289 | continue; |
---|
| 1290 | } |
---|
| 1291 | |
---|
| 1292 | found = 1; |
---|
| 1293 | seg_c2 = ntohs(encoding4->segCountX2); |
---|
| 1294 | cmap_n_segs = seg_c2 >> 1; |
---|
| 1295 | ptr = (BYTE *) encoding4 + 14; |
---|
| 1296 | cmap_seg_end = (USHORT *) ptr; |
---|
| 1297 | cmap_seg_start = (USHORT *) (ptr + seg_c2 + 2); |
---|
| 1298 | cmap_idDelta = (short *) (ptr + (seg_c2 * 2) + 2); |
---|
| 1299 | cmap_idRangeOffset = (short *) (ptr + (seg_c2 * 3) + 2); |
---|
| 1300 | enc_found_ms = 1; |
---|
| 1301 | |
---|
| 1302 | handle_ms_encoding(glyph_list, encoding, unimap); |
---|
| 1303 | } |
---|
| 1304 | |
---|
| 1305 | if (!found && force_pid == -1) { |
---|
| 1306 | WARNING_1 fputs("No Microsoft encoding, looking for MAC encoding\n", stderr); |
---|
| 1307 | for (i = 0; i < num_tables && !found; i++) { |
---|
| 1308 | table_entry = &(cmap_table->encodingTable[i]); |
---|
| 1309 | offset = ntohl(table_entry->offset); |
---|
| 1310 | encoding0 = (TTF_CMAP_FMT0 *) ((BYTE *) cmap_table + offset); |
---|
| 1311 | format = ntohs(encoding0->format); |
---|
| 1312 | platform = ntohs(table_entry->platformID); |
---|
| 1313 | encoding_id = ntohs(table_entry->encodingID); |
---|
| 1314 | |
---|
| 1315 | if (format == 0) { |
---|
| 1316 | found = 1; |
---|
| 1317 | enc_found_mac = 1; |
---|
| 1318 | |
---|
| 1319 | handle_mac_encoding(glyph_list, encoding, unimap); |
---|
| 1320 | } |
---|
| 1321 | } |
---|
| 1322 | } |
---|
| 1323 | |
---|
| 1324 | if (!found && force_pid == -1) { |
---|
| 1325 | WARNING_1 fputs("No MAC encoding either, looking for any format 4 encoding\n", stderr); |
---|
| 1326 | for (i = 0; i < num_tables && !found; i++) { |
---|
| 1327 | table_entry = &(cmap_table->encodingTable[i]); |
---|
| 1328 | offset = ntohl(table_entry->offset); |
---|
| 1329 | encoding4 = (TTF_CMAP_FMT4 *) ((BYTE *) cmap_table + offset); |
---|
| 1330 | format = ntohs(encoding4->format); |
---|
| 1331 | platform = ntohs(table_entry->platformID); |
---|
| 1332 | encoding_id = ntohs(table_entry->encodingID); |
---|
| 1333 | |
---|
| 1334 | if (format != 4) |
---|
| 1335 | continue; |
---|
| 1336 | |
---|
| 1337 | WARNING_1 fprintf(stderr, "Found a last ditch encoding PID=%d/EID=%d, treating it as Unicode.\n", |
---|
| 1338 | platform, encoding_id); |
---|
| 1339 | found = 1; |
---|
| 1340 | enc_type = 1; |
---|
| 1341 | seg_c2 = ntohs(encoding4->segCountX2); |
---|
| 1342 | cmap_n_segs = seg_c2 >> 1; |
---|
| 1343 | ptr = (BYTE *) encoding4 + 14; |
---|
| 1344 | cmap_seg_end = (USHORT *) ptr; |
---|
| 1345 | cmap_seg_start = (USHORT *) (ptr + seg_c2 + 2); |
---|
| 1346 | cmap_idDelta = (short *) (ptr + (seg_c2 * 2) + 2); |
---|
| 1347 | cmap_idRangeOffset = (short *) (ptr + (seg_c2 * 3) + 2); |
---|
| 1348 | enc_found_ms = 1; |
---|
| 1349 | |
---|
| 1350 | handle_ms_encoding(glyph_list, encoding, unimap); |
---|
| 1351 | |
---|
| 1352 | } |
---|
| 1353 | } |
---|
| 1354 | |
---|
| 1355 | if (!found) { |
---|
| 1356 | if(force_pid != -1) { |
---|
| 1357 | fprintf(stderr, "*** TTF encoding table PID=%d/EID=%d not found\n", |
---|
| 1358 | force_pid, force_eid); |
---|
| 1359 | } |
---|
| 1360 | fprintf(stderr, "**** No Recognised Encoding Table ****\n"); |
---|
| 1361 | if(warnlevel >= 2) { |
---|
| 1362 | fprintf(stderr, "Font contains the following unsupported encoding tables:\n"); |
---|
| 1363 | for (i = 0; i < num_tables && !found; i++) { |
---|
| 1364 | table_entry = &(cmap_table->encodingTable[i]); |
---|
| 1365 | offset = ntohl(table_entry->offset); |
---|
| 1366 | encoding0 = (TTF_CMAP_FMT0 *) ((BYTE *) cmap_table + offset); |
---|
| 1367 | format = ntohs(encoding0->format); |
---|
| 1368 | platform = ntohs(table_entry->platformID); |
---|
| 1369 | encoding_id = ntohs(table_entry->encodingID); |
---|
| 1370 | |
---|
| 1371 | fprintf(stderr, " format=%d platform=%d encoding_id=%d\n", |
---|
| 1372 | format, platform, encoding_id); |
---|
| 1373 | } |
---|
| 1374 | } |
---|
| 1375 | exit(1); |
---|
| 1376 | } |
---|
| 1377 | |
---|
| 1378 | return enc_type; |
---|
| 1379 | } |
---|
| 1380 | |
---|
| 1381 | /* |
---|
| 1382 | * Get the font metrics |
---|
| 1383 | */ |
---|
| 1384 | static void |
---|
| 1385 | fnmetrics( |
---|
| 1386 | struct font_metrics *fm |
---|
| 1387 | ) |
---|
| 1388 | { |
---|
| 1389 | char *str; |
---|
| 1390 | static int fieldstocheck[]= {2,4,6}; |
---|
| 1391 | int i, j, len; |
---|
| 1392 | |
---|
| 1393 | fm->italic_angle = (short) (ntohs(post_table->italicAngle.upper)) + |
---|
| 1394 | ((short) ntohs(post_table->italicAngle.lower) / 65536.0); |
---|
| 1395 | fm->underline_position = (short) ntohs(post_table->underlinePosition); |
---|
| 1396 | fm->underline_thickness = (short) ntohs(post_table->underlineThickness); |
---|
| 1397 | fm->is_fixed_pitch = ntohl(post_table->isFixedPitch); |
---|
| 1398 | |
---|
| 1399 | fm->ascender = (short)ntohs(hhea_table->ascender); |
---|
| 1400 | fm->descender = (short)ntohs(hhea_table->descender); |
---|
| 1401 | |
---|
| 1402 | fm->units_per_em = ntohs(head_table->unitsPerEm); |
---|
| 1403 | |
---|
| 1404 | fm->bbox[0] = (short) ntohs(head_table->xMin); |
---|
| 1405 | fm->bbox[1] = (short) ntohs(head_table->yMin); |
---|
| 1406 | fm->bbox[2] = (short) ntohs(head_table->xMax); |
---|
| 1407 | fm->bbox[3] = (short) ntohs(head_table->yMax); |
---|
| 1408 | |
---|
| 1409 | fm->name_copyright = name_fields[0]; |
---|
| 1410 | fm->name_family = name_fields[1]; |
---|
| 1411 | fm->name_style = name_fields[2]; |
---|
| 1412 | fm->name_full = name_fields[4]; |
---|
| 1413 | fm->name_version = name_fields[5]; |
---|
| 1414 | fm->name_ps = name_fields[6]; |
---|
| 1415 | |
---|
| 1416 | /* guess the boldness from the font names */ |
---|
| 1417 | fm->force_bold=0; |
---|
| 1418 | |
---|
| 1419 | for(i=0; !fm->force_bold && i<sizeof fieldstocheck /sizeof(int); i++) { |
---|
| 1420 | str = name_fields[fieldstocheck[i]]; |
---|
| 1421 | len = strlen(str); |
---|
| 1422 | for(j=0; j<len; j++) { |
---|
| 1423 | if( (str[j]=='B' |
---|
| 1424 | || str[j]=='b' |
---|
| 1425 | && ( j==0 || !isalpha(str[j-1]) ) |
---|
| 1426 | ) |
---|
| 1427 | && !strncmp("old",&str[j+1],3) |
---|
| 1428 | && (j+4 >= len || !islower(str[j+4])) |
---|
| 1429 | ) { |
---|
| 1430 | fm->force_bold=1; |
---|
| 1431 | break; |
---|
| 1432 | } |
---|
| 1433 | } |
---|
| 1434 | } |
---|
| 1435 | } |
---|
| 1436 | |
---|
| 1437 | /* |
---|
| 1438 | * Get the path of contrours for a glyph. |
---|
| 1439 | */ |
---|
| 1440 | |
---|
| 1441 | static void |
---|
| 1442 | glpath( |
---|
| 1443 | int glyphno, |
---|
| 1444 | GLYPH *glyf_list |
---|
| 1445 | ) |
---|
| 1446 | { |
---|
| 1447 | double matrix[6]; |
---|
| 1448 | GLYPH *g; |
---|
| 1449 | |
---|
| 1450 | g = &glyph_list[glyphno]; |
---|
| 1451 | |
---|
| 1452 | matrix[0] = matrix[3] = 1.0; |
---|
| 1453 | matrix[1] = matrix[2] = matrix[4] = matrix[5] = 0.0; |
---|
| 1454 | draw_composite_glyf(g, glyf_list, glyphno, matrix, 0 /*level*/); |
---|
| 1455 | } |
---|
| 1456 | |
---|
| 1457 | /* |
---|
| 1458 | * Get the kerning data. |
---|
| 1459 | */ |
---|
| 1460 | |
---|
| 1461 | static void |
---|
| 1462 | kerning( |
---|
| 1463 | GLYPH *glyph_list |
---|
| 1464 | ) |
---|
| 1465 | { |
---|
| 1466 | TTF_KERN_SUB *subtable; |
---|
| 1467 | TTF_KERN_ENTRY *kern_entry; |
---|
| 1468 | int i, j; |
---|
| 1469 | int ntables; |
---|
| 1470 | int npairs; |
---|
| 1471 | char *ptr; |
---|
| 1472 | |
---|
| 1473 | if(kern_table == NULL) { |
---|
| 1474 | WARNING_1 fputs("No Kerning data\n", stderr); |
---|
| 1475 | return; |
---|
| 1476 | } |
---|
| 1477 | if(badpointer(kern_table)) { |
---|
| 1478 | fputs("**** Defective Kerning table, ignored\n", stderr); |
---|
| 1479 | return; |
---|
| 1480 | } |
---|
| 1481 | |
---|
| 1482 | ntables = ntohs(kern_table->nTables); |
---|
| 1483 | ptr = (char *) kern_table + 4; |
---|
| 1484 | |
---|
| 1485 | for (i = 0; i < ntables; i++) { |
---|
| 1486 | subtable = (TTF_KERN_SUB *) ptr; |
---|
| 1487 | if ((ntohs(subtable->coverage) & 0xff00) == 0) { |
---|
| 1488 | npairs = (short) ntohs(subtable->nPairs); |
---|
| 1489 | kern_entry = (TTF_KERN_ENTRY *) (ptr + sizeof(TTF_KERN_SUB)); |
---|
| 1490 | |
---|
| 1491 | kern_entry = (TTF_KERN_ENTRY *) (ptr + sizeof(TTF_KERN_SUB)); |
---|
| 1492 | for (j = 0; j < npairs; j++) { |
---|
| 1493 | if( kern_entry->value != 0) |
---|
| 1494 | addkernpair(ntohs(kern_entry->left), |
---|
| 1495 | ntohs(kern_entry->right), (short)ntohs(kern_entry->value)); |
---|
| 1496 | kern_entry++; |
---|
| 1497 | } |
---|
| 1498 | } |
---|
| 1499 | ptr += subtable->length; |
---|
| 1500 | } |
---|
| 1501 | } |
---|
| 1502 | |
---|