Add hhea-table support
This commit is contained in:
Behdad Esfahbod
parent
7a750ac33e
commit
ae9877dea6
|
|
@ -32,6 +32,7 @@ HBSOURCES = \
|
|||
hb-ot-tag.cc \
|
||||
hb-private.hh \
|
||||
hb-shape.cc \
|
||||
hb-tt-font.cc \
|
||||
hb-unicode-private.hh \
|
||||
hb-unicode.cc \
|
||||
$(NULL)
|
||||
|
|
|
|||
|
|
@ -392,6 +392,12 @@ typedef IntType<int16_t> SHORT; /* 16-bit signed integer. */
|
|||
typedef IntType<uint32_t> ULONG; /* 32-bit unsigned integer. */
|
||||
typedef IntType<int32_t> LONG; /* 32-bit signed integer. */
|
||||
|
||||
/* 16-bit signed integer (SHORT) that describes a quantity in FUnits. */
|
||||
typedef SHORT FWORD;
|
||||
|
||||
/* 16-bit unsigned integer (USHORT) that describes a quantity in FUnits. */
|
||||
typedef USHORT UFWORD;
|
||||
|
||||
/* Date represented in number of seconds since 12:00 midnight, January 1,
|
||||
* 1904. The value is represented as a signed 64-bit integer. */
|
||||
struct LONGDATETIME
|
||||
|
|
|
|||
|
|
@ -32,7 +32,7 @@
|
|||
|
||||
|
||||
/*
|
||||
* head
|
||||
* head -- Font Header
|
||||
*/
|
||||
|
||||
#define HB_OT_TAG_head HB_TAG('h','e','a','d')
|
||||
|
|
|
|||
|
|
@ -0,0 +1,93 @@
|
|||
/*
|
||||
* Copyright © 2011 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_HHEA_TABLE_HH
|
||||
#define HB_OT_HHEA_TABLE_HH
|
||||
|
||||
#include "hb-open-type-private.hh"
|
||||
|
||||
|
||||
|
||||
/*
|
||||
* hhea -- The Horizontal Header Table
|
||||
*/
|
||||
|
||||
#define HB_OT_TAG_hhea HB_TAG('h','h','e','a')
|
||||
|
||||
|
||||
struct hhea
|
||||
{
|
||||
static const hb_tag_t Tag = HB_OT_TAG_hhea;
|
||||
/* TODO */
|
||||
|
||||
inline bool sanitize (hb_sanitize_context_t *c) {
|
||||
TRACE_SANITIZE ();
|
||||
return c->check_struct (this) && likely (version.major == 1);
|
||||
}
|
||||
|
||||
private:
|
||||
FixedVersion version; /* 0x00010000 for version 1.0. */
|
||||
FWORD ascender; /* Typographic ascent. <a
|
||||
* href="http://developer.apple.com/fonts/TTRefMan/RM06/Chap6hhea.html">
|
||||
* (Distance from baseline of highest
|
||||
* ascender)</a> */
|
||||
FWORD descender; /* Typographic descent. <a
|
||||
* href="http://developer.apple.com/fonts/TTRefMan/RM06/Chap6hhea.html">
|
||||
* (Distance from baseline of lowest
|
||||
* descender)</a> */
|
||||
FWORD lineGap; /* Typographic line gap. Negative
|
||||
* LineGap values are treated as zero
|
||||
* in Windows 3.1, System 6, and
|
||||
* System 7. */
|
||||
UFWORD advanceWidthMax; /* Maximum advance width value in
|
||||
* 'hmtx' table. */
|
||||
FWORD minLeftSideBearing; /* Minimum left sidebearing value in
|
||||
* 'hmtx' table. */
|
||||
FWORD minRightSideBearing; /* Minimum right sidebearing value;
|
||||
* calculated as Min(aw - lsb -
|
||||
* (xMax - xMin)). */
|
||||
FWORD xMaxExtent; /* Max(lsb + (xMax - xMin)). */
|
||||
SHORT caretSlopeRise; /* Used to calculate the slope of the
|
||||
* cursor (rise/run); 1 for vertical. */
|
||||
SHORT caretSlopeRun; /* 0 for vertical. */
|
||||
SHORT caretOffset; /* The amount by which a slanted
|
||||
* highlight on a glyph needs
|
||||
* to be shifted to produce the
|
||||
* best appearance. Set to 0 for
|
||||
* non--slanted fonts */
|
||||
SHORT reserved1; /* set to 0 */
|
||||
SHORT reserved2; /* set to 0 */
|
||||
SHORT reserved3; /* set to 0 */
|
||||
SHORT reserved4; /* set to 0 */
|
||||
SHORT metricDataFormat; /* 0 for current format. */
|
||||
USHORT numberOfHMetrics; /* Number of hMetric entries in 'hmtx'
|
||||
* table */
|
||||
public:
|
||||
DEFINE_SIZE_STATIC (36);
|
||||
};
|
||||
|
||||
|
||||
#endif /* HB_OT_HHEA_TABLE_HH */
|
||||
|
|
@ -320,7 +320,7 @@ struct MarkGlyphSets
|
|||
|
||||
|
||||
/*
|
||||
* GDEF
|
||||
* GDEF -- The Glyph Definition Table
|
||||
*/
|
||||
|
||||
struct GDEF
|
||||
|
|
|
|||
|
|
@ -1488,7 +1488,7 @@ struct PosLookup : Lookup
|
|||
typedef OffsetListOf<PosLookup> PosLookupList;
|
||||
|
||||
/*
|
||||
* GPOS
|
||||
* GPOS -- The Glyph Positioning Table
|
||||
*/
|
||||
|
||||
struct GPOS : GSUBGPOS
|
||||
|
|
|
|||
|
|
@ -851,7 +851,7 @@ struct SubstLookup : Lookup
|
|||
typedef OffsetListOf<SubstLookup> SubstLookupList;
|
||||
|
||||
/*
|
||||
* GSUB
|
||||
* GSUB -- The Glyph Substitution Table
|
||||
*/
|
||||
|
||||
struct GSUB : GSUBGPOS
|
||||
|
|
|
|||
|
|
@ -32,7 +32,7 @@
|
|||
|
||||
|
||||
/*
|
||||
* maxp
|
||||
* maxp -- The Maximum Profile Table
|
||||
*/
|
||||
|
||||
#define HB_OT_TAG_maxp HB_TAG('m','a','x','p')
|
||||
|
|
|
|||
|
|
@ -32,11 +32,12 @@
|
|||
|
||||
|
||||
/*
|
||||
* name
|
||||
* name -- The Naming Table
|
||||
*/
|
||||
|
||||
#define HB_OT_TAG_name HB_TAG('n','a','m','e')
|
||||
|
||||
|
||||
struct NameRecord
|
||||
{
|
||||
static int cmp (const NameRecord *a, const NameRecord *b)
|
||||
|
|
|
|||
|
|
@ -0,0 +1,207 @@
|
|||
/*
|
||||
* Copyright © 2011 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
|
||||
*/
|
||||
|
||||
#include "hb-open-type-private.hh"
|
||||
|
||||
#include "hb-ot-hhea-table.hh"
|
||||
|
||||
#include "hb-font-private.hh"
|
||||
#include "hb-blob.h"
|
||||
|
||||
#include <string.h>
|
||||
|
||||
|
||||
|
||||
/*
|
||||
* hb_tt_font_funcs_t
|
||||
*/
|
||||
|
||||
#if 0
|
||||
static hb_bool_t
|
||||
hb_font_get_glyph_nil (hb_font_t *font HB_UNUSED,
|
||||
void *font_data HB_UNUSED,
|
||||
hb_codepoint_t unicode,
|
||||
hb_codepoint_t variation_selector,
|
||||
hb_codepoint_t *glyph,
|
||||
void *user_data HB_UNUSED)
|
||||
{
|
||||
if (font->parent)
|
||||
return hb_font_get_glyph (font->parent, unicode, variation_selector, glyph);
|
||||
|
||||
*glyph = 0;
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
static hb_position_t
|
||||
hb_font_get_glyph_h_advance_nil (hb_font_t *font HB_UNUSED,
|
||||
void *font_data HB_UNUSED,
|
||||
hb_codepoint_t glyph,
|
||||
void *user_data HB_UNUSED)
|
||||
{
|
||||
if (font->parent)
|
||||
return font->parent_scale_x_distance (hb_font_get_glyph_h_advance (font->parent, glyph));
|
||||
|
||||
return font->x_scale;
|
||||
}
|
||||
|
||||
static hb_position_t
|
||||
hb_font_get_glyph_v_advance_nil (hb_font_t *font HB_UNUSED,
|
||||
void *font_data HB_UNUSED,
|
||||
hb_codepoint_t glyph,
|
||||
void *user_data HB_UNUSED)
|
||||
{
|
||||
if (font->parent)
|
||||
return font->parent_scale_y_distance (hb_font_get_glyph_v_advance (font->parent, glyph));
|
||||
|
||||
return font->y_scale;
|
||||
}
|
||||
|
||||
static hb_bool_t
|
||||
hb_font_get_glyph_h_origin_nil (hb_font_t *font HB_UNUSED,
|
||||
void *font_data HB_UNUSED,
|
||||
hb_codepoint_t glyph,
|
||||
hb_position_t *x,
|
||||
hb_position_t *y,
|
||||
void *user_data HB_UNUSED)
|
||||
{
|
||||
if (font->parent) {
|
||||
hb_bool_t ret = hb_font_get_glyph_h_origin (font->parent,
|
||||
glyph,
|
||||
x, y);
|
||||
if (ret)
|
||||
font->parent_scale_position (x, y);
|
||||
return ret;
|
||||
}
|
||||
|
||||
*x = *y = 0;
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
static hb_bool_t
|
||||
hb_font_get_glyph_v_origin_nil (hb_font_t *font HB_UNUSED,
|
||||
void *font_data HB_UNUSED,
|
||||
hb_codepoint_t glyph,
|
||||
hb_position_t *x,
|
||||
hb_position_t *y,
|
||||
void *user_data HB_UNUSED)
|
||||
{
|
||||
if (font->parent) {
|
||||
hb_bool_t ret = hb_font_get_glyph_v_origin (font->parent,
|
||||
glyph,
|
||||
x, y);
|
||||
if (ret)
|
||||
font->parent_scale_position (x, y);
|
||||
return ret;
|
||||
}
|
||||
|
||||
*x = *y = 0;
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
static hb_position_t
|
||||
hb_font_get_glyph_h_kerning_nil (hb_font_t *font HB_UNUSED,
|
||||
void *font_data HB_UNUSED,
|
||||
hb_codepoint_t left_glyph,
|
||||
hb_codepoint_t right_glyph,
|
||||
void *user_data HB_UNUSED)
|
||||
{
|
||||
if (font->parent)
|
||||
return font->parent_scale_x_distance (hb_font_get_glyph_h_kerning (font->parent, left_glyph, right_glyph));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static hb_position_t
|
||||
hb_font_get_glyph_v_kerning_nil (hb_font_t *font HB_UNUSED,
|
||||
void *font_data HB_UNUSED,
|
||||
hb_codepoint_t top_glyph,
|
||||
hb_codepoint_t bottom_glyph,
|
||||
void *user_data HB_UNUSED)
|
||||
{
|
||||
if (font->parent)
|
||||
return font->parent_scale_y_distance (hb_font_get_glyph_v_kerning (font->parent, top_glyph, bottom_glyph));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static hb_bool_t
|
||||
hb_font_get_glyph_extents_nil (hb_font_t *font HB_UNUSED,
|
||||
void *font_data HB_UNUSED,
|
||||
hb_codepoint_t glyph,
|
||||
hb_glyph_extents_t *extents,
|
||||
void *user_data HB_UNUSED)
|
||||
{
|
||||
if (font->parent) {
|
||||
hb_bool_t ret = hb_font_get_glyph_extents (font->parent,
|
||||
glyph,
|
||||
extents);
|
||||
if (ret) {
|
||||
font->parent_scale_position (&extents->x_bearing, &extents->y_bearing);
|
||||
font->parent_scale_distance (&extents->width, &extents->height);
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
memset (extents, 0, sizeof (*extents));
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
static hb_bool_t
|
||||
hb_font_get_glyph_contour_point_nil (hb_font_t *font HB_UNUSED,
|
||||
void *font_data HB_UNUSED,
|
||||
hb_codepoint_t glyph,
|
||||
unsigned int point_index,
|
||||
hb_position_t *x,
|
||||
hb_position_t *y,
|
||||
void *user_data HB_UNUSED)
|
||||
{
|
||||
if (font->parent) {
|
||||
hb_bool_t ret = hb_font_get_glyph_contour_point (font->parent,
|
||||
glyph, point_index,
|
||||
x, y);
|
||||
if (ret)
|
||||
font->parent_scale_position (x, y);
|
||||
return ret;
|
||||
}
|
||||
|
||||
*x = *y = 0;
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
|
||||
static hb_font_funcs_t _hb_font_funcs_nil = {
|
||||
HB_OBJECT_HEADER_STATIC,
|
||||
|
||||
TRUE, /* immutable */
|
||||
|
||||
{
|
||||
#define HB_FONT_FUNC_IMPLEMENT(name) hb_font_get_##name##_nil,
|
||||
HB_FONT_FUNCS_IMPLEMENT_CALLBACKS
|
||||
#undef HB_FONT_FUNC_IMPLEMENT
|
||||
}
|
||||
};
|
||||
#endif
|
||||
|
||||
Loading…
Reference in New Issue