| /* | |
| * Copyright (C) 2010 Red Hat, 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. | |
| * | |
| * Red Hat Author(s): Behdad Esfahbod | |
| */ | |
| #ifndef HB_OT_HEAD_PRIVATE_HH | |
| #define HB_OT_HEAD_PRIVATE_HH | |
| #include "hb-open-type-private.hh" | |
| /* | |
| * head | |
| */ | |
| #define HB_OT_TAG_head HB_TAG('h','e','a','d') | |
| struct head | |
| { | |
| static const hb_tag_t Tag = HB_OT_TAG_head; | |
| inline bool sanitize (hb_sanitize_context_t *c) { | |
| TRACE_SANITIZE (); | |
| /* Shall we check for magicNumber here? Who cares? */ | |
| return c->check_struct (this) && likely (version.major == 1); | |
| } | |
| FixedVersion version; /* Version of the head table--currently | |
| * 0x00010000 for version 1.0. */ | |
| FixedVersion fontRevision; /* Set by font manufacturer. */ | |
| ULONG checkSumAdjustment; /* To compute: set it to 0, sum the | |
| * entire font as ULONG, then store | |
| * 0xB1B0AFBA - sum. */ | |
| ULONG magicNumber; /* Set to 0x5F0F3CF5. */ | |
| USHORT flags; /* Bit 0: Baseline for font at y=0; | |
| * Bit 1: Left sidebearing point at x=0; | |
| * Bit 2: Instructions may depend on point size; | |
| * Bit 3: Force ppem to integer values for all | |
| * internal scaler math; may use fractional | |
| * ppem sizes if this bit is clear; | |
| * Bit 4: Instructions may alter advance width | |
| * (the advance widths might not scale linearly); | |
| * Bits 5-10: These should be set according to | |
| * Apple's specification. However, they are not | |
| * implemented in OpenType. | |
| * Bit 5: This bit should be set in fonts that are | |
| * intended to e laid out vertically, and in | |
| * which the glyphs have been drawn such that an | |
| * x-coordinate of 0 corresponds to the desired | |
| * vertical baseline. | |
| * Bit 6: This bit must be set to zero. | |
| * Bit 7: This bit should be set if the font | |
| * requires layout for correct linguistic | |
| * rendering (e.g. Arabic fonts). | |
| * Bit 8: This bit should be set for a GX font | |
| * which has one or more metamorphosis effects | |
| * designated as happening by default. | |
| * Bit 9: This bit should be set if the font | |
| * contains any strong right-to-left glyphs. | |
| * Bit 10: This bit should be set if the font | |
| * contains Indic-style rearrangement effects. | |
| * Bit 11: Font data is 'lossless,' as a result | |
| * of having been compressed and decompressed | |
| * with the Agfa MicroType Express engine. | |
| * Bit 12: Font converted (produce compatible metrics) | |
| * Bit 13: Font optimized for ClearType™. | |
| * Note, fonts that rely on embedded bitmaps (EBDT) | |
| * for rendering should not be considered optimized | |
| * for ClearType, and therefore should keep this bit | |
| * cleared. | |
| * Bit 14: Reserved, set to 0 | |
| * Bit 15: Reserved, set to 0. */ | |
| USHORT unitsPerEm; /* Valid range is from 16 to 16384. This value | |
| * should be a power of 2 for fonts that have | |
| * TrueType outlines. */ | |
| LONGDATETIME created; /* Number of seconds since 12:00 midnight, | |
| January 1, 1904. 64-bit integer */ | |
| LONGDATETIME modified; /* Number of seconds since 12:00 midnight, | |
| January 1, 1904. 64-bit integer */ | |
| SHORT xMin; /* For all glyph bounding boxes. */ | |
| SHORT yMin; /* For all glyph bounding boxes. */ | |
| SHORT xMax; /* For all glyph bounding boxes. */ | |
| SHORT yMax; /* For all glyph bounding boxes. */ | |
| USHORT macStyle; /* Bit 0: Bold (if set to 1); | |
| * Bit 1: Italic (if set to 1) | |
| * Bit 2: Underline (if set to 1) | |
| * Bit 3: Outline (if set to 1) | |
| * Bit 4: Shadow (if set to 1) | |
| * Bit 5: Condensed (if set to 1) | |
| * Bit 6: Extended (if set to 1) | |
| * Bits 7-15: Reserved (set to 0). */ | |
| USHORT lowestRecPPEM; /* Smallest readable size in pixels. */ | |
| SHORT fontDirectionHint; /* Deprecated (Set to 2). | |
| * 0: Fully mixed directional glyphs; | |
| * 1: Only strongly left to right; | |
| * 2: Like 1 but also contains neutrals; | |
| * -1: Only strongly right to left; | |
| * -2: Like -1 but also contains neutrals. */ | |
| SHORT indexToLocFormat; /* 0 for short offsets, 1 for long. */ | |
| SHORT glyphDataFormat; /* 0 for current format. */ | |
| public: | |
| DEFINE_SIZE_STATIC (54); | |
| }; | |
| #endif /* HB_OT_HEAD_PRIVATE_HH */ |