/* * Copyright © 2016 Google, Inc. * * This is part of HarfBuzz, a text shaping library. * * Permission is hereby granted, without written agreement and without * license or royalty fees, to use, copy, modify, and distribute this * software and its documentation for any purpose, provided that the * above copyright notice and the following two paragraphs appear in * all copies of this software. * * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. * * Google Author(s): Behdad Esfahbod */ #ifndef HB_OT_POST_TABLE_HH #define HB_OT_POST_TABLE_HH #include "hb-open-type-private.hh" #define NUM_FORMAT1_NAMES 258 static const char* const format1_names[NUM_FORMAT1_NAMES] = { ".notdef", ".null", "nonmarkingreturn", "space", "exclam", "quotedbl", "numbersign", "dollar", "percent", "ampersand", "quotesingle", "parenleft", "parenright", "asterisk", "plus", "comma", "hyphen", "period", "slash", "zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "colon", "semicolon", "less", "equal", "greater", "question", "at", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "bracketleft", "backslash", "bracketright", "asciicircum", "underscore", "grave", "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "braceleft", "bar", "braceright", "asciitilde", "Adieresis", "Aring", "Ccedilla", "Eacute", "Ntilde", "Odieresis", "Udieresis", "aacute", "agrave", "acircumflex", "adieresis", "atilde", "aring", "ccedilla", "eacute", "egrave", "ecircumflex", "edieresis", "iacute", "igrave", "icircumflex", "idieresis", "ntilde", "oacute", "ograve", "ocircumflex", "odieresis", "otilde", "uacute", "ugrave", "ucircumflex", "udieresis", "dagger", "degree", "cent", "sterling", "section", "bullet", "paragraph", "germandbls", "registered", "copyright", "trademark", "acute", "dieresis", "notequal", "AE", "Oslash", "infinity", "plusminus", "lessequal", "greaterequal", "yen", "mu", "partialdiff", "summation", "product", "pi", "integral", "ordfeminine", "ordmasculine", "Omega", "ae", "oslash", "questiondown", "exclamdown", "logicalnot", "radical", "florin", "approxequal", "Delta", "guillemotleft", "guillemotright", "ellipsis", "nonbreakingspace", "Agrave", "Atilde", "Otilde", "OE", "oe", "endash", "emdash", "quotedblleft", "quotedblright", "quoteleft", "quoteright", "divide", "lozenge", "ydieresis", "Ydieresis", "fraction", "currency", "guilsinglleft", "guilsinglright", "fi", "fl", "daggerdbl", "periodcentered", "quotesinglbase", "quotedblbase", "perthousand", "Acircumflex", "Ecircumflex", "Aacute", "Edieresis", "Egrave", "Iacute", "Icircumflex", "Idieresis", "Igrave", "Oacute", "Ocircumflex", "apple", "Ograve", "Uacute", "Ucircumflex", "Ugrave", "dotlessi", "circumflex", "tilde", "macron", "breve", "dotaccent", "ring", "cedilla", "hungarumlaut", "ogonek", "caron", "Lslash", "lslash", "Scaron", "scaron", "Zcaron", "zcaron", "brokenbar", "Eth", "eth", "Yacute", "yacute", "Thorn", "thorn", "minus", "multiply", "onesuperior", "twosuperior", "threesuperior", "onehalf", "onequarter", "threequarters", "franc", "Gbreve", "gbreve", "Idotaccent", "Scedilla", "scedilla", "Cacute", "cacute", "Ccaron", "ccaron", "dcroat", }; namespace OT { /* * post -- PostScript */ #define HB_OT_TAG_post HB_TAG('p','o','s','t') struct postV2Tail { inline bool sanitize (hb_sanitize_context_t *c) const { TRACE_SANITIZE (this); return_trace (numberOfGlyphs.sanitize (c) && c->check_array (glyphNameIndex, sizeof (USHORT), numberOfGlyphs)); } USHORT numberOfGlyphs; /* Number of glyphs (this should be the * same as numGlyphs in 'maxp' table). */ USHORT glyphNameIndex[VAR]; /* This is not an offset, but is the * ordinal number of the glyph in 'post' * string tables. */ BYTE namesX[VAR]; /* Glyph names with length bytes [variable] * (a Pascal string). */ DEFINE_SIZE_ARRAY2 (2, glyphNameIndex, namesX); }; struct post { static const hb_tag_t tableTag = HB_OT_TAG_post; inline bool sanitize (hb_sanitize_context_t *c) const { TRACE_SANITIZE (this); if (unlikely (!c->check_struct (this))) return_trace (false); if (version.to_int () == 0x00020000) { const postV2Tail &v2 = StructAfter (*this); return_trace (v2.sanitize (c)); } return_trace (true); } inline bool get_glyph_name (hb_codepoint_t glyph, char *buffer, unsigned int buffer_length, unsigned int blob_len) const { if (version.to_int () == 0x00010000) { if (glyph >= NUM_FORMAT1_NAMES) return false; if (!buffer_length) return true; strncpy (buffer, format1_names[glyph], buffer_length); buffer[buffer_length - 1] = '\0'; return true; } if (version.to_int () == 0x00020000) { const postV2Tail &v2 = StructAfter (*this); if (glyph >= v2.numberOfGlyphs) return false; if (!buffer_length) return true; unsigned int index = v2.glyphNameIndex[glyph]; if (index < NUM_FORMAT1_NAMES) { if (!buffer_length) return true; strncpy (buffer, format1_names[index], buffer_length); buffer[buffer_length - 1] = '\0'; return true; } index -= NUM_FORMAT1_NAMES; unsigned int offset = min_size + v2.min_size + 2 * v2.numberOfGlyphs; unsigned char *data = (unsigned char *) this + offset; unsigned char *end = (unsigned char *) this + blob_len; for (unsigned int i = 0; data < end; i++) { unsigned int name_length = data[0]; data++; if (i == index) { if (unlikely (!name_length)) return false; unsigned int remaining = end - data; name_length = MIN (name_length, buffer_length - 1); name_length = MIN (name_length, remaining); memcpy (buffer, data, name_length); buffer[name_length] = '\0'; return true; } data += name_length; } return false; } return false; } inline bool get_glyph_from_name (const char *name, int len, hb_codepoint_t *glyph, unsigned int blob_len) const { if (len < 0) len = strlen (name); if (version.to_int () == 0x00010000) { for (int i = 0; i < NUM_FORMAT1_NAMES; i++) { if (strncmp (name, format1_names[i], len) == 0 && format1_names[i][len] == '\0') { *glyph = i; return true; } } return false; } if (version.to_int () == 0x00020000) { const postV2Tail &v2 = StructAfter (*this); unsigned int offset = min_size + v2.min_size + 2 * v2.numberOfGlyphs; char* data = (char*) this + offset; /* XXX The following code is wrong. */ return false; for (hb_codepoint_t gid = 0; gid < v2.numberOfGlyphs; gid++) { unsigned int index = v2.glyphNameIndex[gid]; if (index < NUM_FORMAT1_NAMES) { if (strncmp (name, format1_names[index], len) == 0 && format1_names[index][len] == '\0') { *glyph = gid; return true; } continue; } index -= NUM_FORMAT1_NAMES; for (unsigned int i = 0; data < (char*) this + blob_len; i++) { unsigned int name_length = data[0]; unsigned int remaining = (char*) this + blob_len - data - 1; name_length = MIN (name_length, remaining); if (name_length == (unsigned int) len && strncmp (name, data + 1, len) == 0) { *glyph = gid; return true; } data += name_length + 1; } return false; } return false; } return false; } public: FixedVersion<>version; /* 0x00010000 for version 1.0 * 0x00020000 for version 2.0 * 0x00025000 for version 2.5 (deprecated) * 0x00030000 for version 3.0 */ Fixed italicAngle; /* Italic angle in counter-clockwise degrees * from the vertical. Zero for upright text, * negative for text that leans to the right * (forward). */ FWORD underlinePosition; /* This is the suggested distance of the top * of the underline from the baseline * (negative values indicate below baseline). * The PostScript definition of this FontInfo * dictionary key (the y coordinate of the * center of the stroke) is not used for * historical reasons. The value of the * PostScript key may be calculated by * subtracting half the underlineThickness * from the value of this field. */ FWORD underlineThickness; /* Suggested values for the underline thickness. */ ULONG isFixedPitch; /* Set to 0 if the font is proportionally * spaced, non-zero if the font is not * proportionally spaced (i.e. monospaced). */ ULONG minMemType42; /* Minimum memory usage when an OpenType font * is downloaded. */ ULONG maxMemType42; /* Maximum memory usage when an OpenType font * is downloaded. */ ULONG minMemType1; /* Minimum memory usage when an OpenType font * is downloaded as a Type 1 font. */ ULONG maxMemType1; /* Maximum memory usage when an OpenType font * is downloaded as a Type 1 font. */ /*postV2Tail v2[VAR];*/ DEFINE_SIZE_STATIC (32); }; } /* namespace OT */ #endif /* HB_OT_POST_TABLE_HH */