#ifndef HB_OT_HEAD_TABLE_HH
#define HB_OT_HEAD_TABLE_HH
-#include "hb-open-type-private.hh"
-
-
-namespace OT {
-
+#include "hb-open-type.hh"
/*
* head -- Font Header
+ * https://docs.microsoft.com/en-us/typography/opentype/spec/head
*/
-
#define HB_OT_TAG_head HB_TAG('h','e','a','d')
+
+namespace OT {
+
+
struct head
{
- static const hb_tag_t tableTag = HB_OT_TAG_head;
+ friend struct OffsetTable;
+
+ static constexpr hb_tag_t tableTag = HB_OT_TAG_head;
- inline unsigned int get_upem (void) const
+ unsigned int get_upem () const
{
unsigned int upem = unitsPerEm;
/* If no valid head table found, assume 1000, which matches typical Type1 usage. */
return 16 <= upem && upem <= 16384 ? upem : 1000;
}
- inline bool sanitize (hb_sanitize_context_t *c) const
+ bool serialize (hb_serialize_context_t *c) const
+ {
+ TRACE_SERIALIZE (this);
+ return_trace ((bool) c->embed (this));
+ }
+
+ bool subset (hb_subset_context_t *c) const
+ {
+ TRACE_SUBSET (this);
+ return_trace (serialize (c->serializer));
+ }
+
+ enum mac_style_flag_t {
+ BOLD = 1u<<0,
+ ITALIC = 1u<<1,
+ UNDERLINE = 1u<<2,
+ OUTLINE = 1u<<3,
+ SHADOW = 1u<<4,
+ CONDENSED = 1u<<5
+ };
+
+ bool is_bold () const { return macStyle & BOLD; }
+ bool is_italic () const { return macStyle & ITALIC; }
+ bool is_condensed () const { return macStyle & CONDENSED; }
+
+ bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);
return_trace (c->check_struct (this) &&
FixedVersion<>version; /* Version of the head table--currently
* 0x00010000u 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
+ HBUINT32 checkSumAdjustment; /* To compute: set it to 0, sum the
+ * entire font as HBUINT32, then store
* 0xB1B0AFBAu - sum. */
- ULONG magicNumber; /* Set to 0x5F0F3CF5u. */
- USHORT flags; /* Bit 0: Baseline for font at y=0;
+ HBUINT32 magicNumber; /* Set to 0x5F0F3CF5u. */
+ HBUINT16 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
* 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.
* 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.
* encoded in the cmap subtables represent proper
* support for those code points.
* Bit 15: Reserved, set to 0. */
- USHORT unitsPerEm; /* Valid range is from 16 to 16384. This value
+ HBUINT16 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);
+ HBINT16 xMin; /* For all glyph bounding boxes. */
+ HBINT16 yMin; /* For all glyph bounding boxes. */
+ HBINT16 xMax; /* For all glyph bounding boxes. */
+ HBINT16 yMax; /* For all glyph bounding boxes. */
+ HBUINT16 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 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).
+ HBUINT16 lowestRecPPEM; /* Smallest readable size in pixels. */
+ HBINT16 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. */
public:
- SHORT indexToLocFormat; /* 0 for short offsets, 1 for long. */
- SHORT glyphDataFormat; /* 0 for current format. */
+ HBUINT16 indexToLocFormat; /* 0 for short offsets, 1 for long. */
+ HBUINT16 glyphDataFormat; /* 0 for current format. */
DEFINE_SIZE_STATIC (54);
};
projects / platform / upstream / harfbuzz.git / blobdiff