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[HB] More buffer cleanup

This commit is contained in:
Behdad Esfahbod 2009-05-25 04:04:24 -04:00
parent 88a5f5a49b
commit c968fc2dc8
9 changed files with 124 additions and 176 deletions
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39
src/hb-buffer-private.h
View File

@ -33,7 +33,7 @@
HB_BEGIN_DECLS
#define HB_GLYPH_PROPERTY_UNKNOWN 0xFFFF
#define HB_BUFFER_GLYPH_PROPERTIES_UNKNOWN 0xFFFF
HB_INTERNAL void
_hb_buffer_swap (hb_buffer_t *buffer);
@ -41,10 +41,10 @@ _hb_buffer_swap (hb_buffer_t *buffer);
HB_INTERNAL void
_hb_buffer_clear_output (hb_buffer_t *buffer);
HB_INTERNAL HB_Error
HB_INTERNAL void
_hb_buffer_clear_positions (hb_buffer_t *buffer);
HB_INTERNAL HB_Error
HB_INTERNAL void
_hb_buffer_add_output_glyphs (hb_buffer_t *buffer,
unsigned int num_in,
unsigned int num_out,
@ -52,54 +52,35 @@ _hb_buffer_add_output_glyphs (hb_buffer_t *buffer,
unsigned short component,
unsigned short ligID);
HB_INTERNAL HB_Error
HB_INTERNAL void
_hb_buffer_add_output_glyph (hb_buffer_t *buffer,
hb_codepoint_t glyph_index,
unsigned short component,
unsigned short ligID);
HB_INTERNAL HB_Error
HB_INTERNAL void
_hb_buffer_next_glyph (hb_buffer_t *buffer);
HB_INTERNAL HB_Error
HB_INTERNAL void
_hb_buffer_replace_glyph (hb_buffer_t *buffer,
hb_codepoint_t glyph_index);
HB_INTERNAL unsigned short
_hb_buffer_allocate_ligid (hb_buffer_t *buffer);
_hb_buffer_allocate_lig_id (hb_buffer_t *buffer);
/* convenience macros */
#define IN_GLYPH(pos) (buffer->in_string[(pos)].gindex)
#define IN_ITEM(pos) (&buffer->in_string[(pos)])
#define IN_INFO(pos) (&buffer->in_string[(pos)])
#define IN_CURGLYPH() (buffer->in_string[buffer->in_pos].gindex)
#define IN_CURITEM() (&buffer->in_string[buffer->in_pos])
#define IN_CURINFO() (&buffer->in_string[buffer->in_pos])
#define IN_PROPERTIES(pos) (buffer->in_string[(pos)].properties)
#define IN_LIGID(pos) (buffer->in_string[(pos)].ligID)
#define IN_COMPONENT(pos) (buffer->in_string[(pos)].component)
#define POSITION(pos) (&buffer->positions[(pos)])
#define CURPOSITION() (&buffer->positions[buffer->in_pos])
#define OUT_GLYPH(pos) (buffer->out_string[(pos)].gindex)
#define OUT_ITEM(pos) (&buffer->out_string[(pos)])
#define CHECK_Property (layout, index, flags, properties) \
({unsigned int _p; error = _hb_ot_layout_check_glyph_property((layout), (index), (flags), (&_p)) \
? HB_Err_Ok : HB_Err_Not_Covered, *(properties) = _p; error;})
#define ADD_String (buffer, num_in, num_out, glyph_data, component, ligID) \
((error = _hb_buffer_add_output_glyphs ((buffer), \
(num_in), (num_out), \
(glyph_data), (component), (ligID) \
)) != HB_Err_Ok)
#define ADD_Glyph (buffer, glyph_index, component, ligID) \
((error = _hb_buffer_add_output_glyph ((buffer), \
(glyph_index), (component), (ligID) \
)) != HB_Err_Ok)
#define REPLACE_Glyph (buffer, glyph_index) \
((error = _hb_buffer_replace_glyph ((buffer), (glyph_index))) != HB_Err_Ok)
#define COPY_Glyph (buffer) \
((error = _hb_buffer_next_glyph (buffer)) != HB_Err_Ok)
#define OUT_INFO(pos) (&buffer->out_string[(pos)])
HB_END_DECLS

134
src/hb-buffer.c
View File

@ -56,19 +56,17 @@
* to in_string (FALSE) or alt_string (TRUE).
*/
/* XXX err handling */
/* Internal API */
static void
hb_buffer_ensure (hb_buffer_t *buffer,
unsigned int size)
hb_buffer_ensure (hb_buffer_t *buffer, unsigned int size)
{
unsigned int new_allocated = buffer->allocated;
/* XXX err handling */
if (size > new_allocated)
{
HB_Error error;
while (size > new_allocated)
new_allocated += (new_allocated >> 1) + 8;
@ -97,8 +95,8 @@ hb_buffer_ensure (hb_buffer_t *buffer,
}
}
static HB_Error
hb_buffer_duplicate_out_buffer (HB_Buffer buffer)
static void
hb_buffer_duplicate_out_buffer (hb_buffer_t *buffer)
{
if (!buffer->alt_string)
buffer->alt_string = malloc (buffer->allocated * sizeof (buffer->alt_string[0]));
@ -106,8 +104,14 @@ hb_buffer_duplicate_out_buffer (HB_Buffer buffer)
buffer->out_string = buffer->alt_string;
memcpy (buffer->out_string, buffer->in_string, buffer->out_length * sizeof (buffer->out_string[0]));
buffer->separate_out = TRUE;
}
return HB_Err_Ok;
static void
hb_buffer_ensure_separate (hb_buffer_t *buffer, unsigned int size)
{
hb_buffer_ensure (buffer, size);
if ( !buffer->separate_out )
hb_buffer_duplicate_out_buffer (buffer);
}
/* Public API */
@ -132,7 +136,7 @@ hb_buffer_new (void)
}
void
hb_buffer_free (HB_Buffer buffer)
hb_buffer_free (hb_buffer_t *buffer)
{
free (buffer->in_string);
free (buffer->alt_string);
@ -141,7 +145,7 @@ hb_buffer_free (HB_Buffer buffer)
}
void
hb_buffer_clear (HB_Buffer buffer)
hb_buffer_clear (hb_buffer_t *buffer)
{
buffer->in_length = 0;
buffer->out_length = 0;
@ -149,7 +153,7 @@ hb_buffer_clear (HB_Buffer buffer)
buffer->out_pos = 0;
buffer->out_string = buffer->in_string;
buffer->separate_out = FALSE;
buffer->max_ligID = 0;
buffer->max_lig_id = 0;
}
void
@ -158,8 +162,7 @@ hb_buffer_add_glyph (hb_buffer_t *buffer,
unsigned int properties,
unsigned int cluster)
{
HB_Error error;
HB_GlyphItem glyph;
hb_glyph_info_t *glyph;
hb_buffer_ensure (buffer, buffer->in_length + 1);
@ -169,7 +172,7 @@ hb_buffer_add_glyph (hb_buffer_t *buffer,
glyph->cluster = cluster;
glyph->component = 0;
glyph->ligID = 0;
glyph->gproperty = HB_GLYPH_PROPERTY_UNKNOWN;
glyph->gproperty = HB_BUFFER_GLYPH_PROPERTIES_UNKNOWN;
buffer->in_length++;
}
@ -177,7 +180,7 @@ hb_buffer_add_glyph (hb_buffer_t *buffer,
/* HarfBuzz-Internal API */
HB_INTERNAL void
_hb_buffer_clear_output (HB_Buffer buffer)
_hb_buffer_clear_output (hb_buffer_t *buffer)
{
buffer->out_length = 0;
buffer->out_pos = 0;
@ -185,41 +188,41 @@ _hb_buffer_clear_output (HB_Buffer buffer)
buffer->separate_out = FALSE;
}
HB_INTERNAL HB_Error
_hb_buffer_clear_positions (HB_Buffer buffer)
HB_INTERNAL void
_hb_buffer_clear_positions (hb_buffer_t *buffer)
{
_hb_buffer_clear_output (buffer);
if (!buffer->positions)
buffer->positions = malloc (buffer->allocated * sizeof (buffer->positions[0]));
if (HB_UNLIKELY (!buffer->positions))
{
buffer->positions = calloc (buffer->allocated, sizeof (buffer->positions[0]));
return;
}
memset (buffer->positions, 0, sizeof (buffer->positions[0]) * buffer->in_length);
return HB_Err_Ok;
}
HB_INTERNAL void
_hb_buffer_swap (HB_Buffer buffer)
_hb_buffer_swap (hb_buffer_t *buffer)
{
HB_GlyphItem tmp_string;
int tmp_length;
int tmp_pos;
unsigned int tmp;
if (buffer->separate_out)
{
hb_glyph_info_t *tmp_string;
tmp_string = buffer->in_string;
buffer->in_string = buffer->out_string;
buffer->out_string = tmp_string;
buffer->alt_string = buffer->out_string;
}
tmp_length = buffer->in_length;
tmp = buffer->in_length;
buffer->in_length = buffer->out_length;
buffer->out_length = tmp_length;
buffer->out_length = tmp;
tmp_pos = buffer->in_pos;
tmp = buffer->in_pos;
buffer->in_pos = buffer->out_pos;
buffer->out_pos = tmp_pos;
buffer->out_pos = tmp;
}
/* The following function copies `num_out' elements from `glyph_data'
@ -241,7 +244,7 @@ _hb_buffer_swap (HB_Buffer buffer)
The cluster value for the glyph at position buffer->in_pos is used
for all replacement glyphs */
HB_INTERNAL HB_Error
HB_INTERNAL void
_hb_buffer_add_output_glyphs (hb_buffer_t *buffer,
unsigned int num_in,
unsigned int num_out,
@ -249,66 +252,67 @@ _hb_buffer_add_output_glyphs (hb_buffer_t *buffer,
unsigned short component,
unsigned short ligID)
{
HB_Error error;
unsigned int i;
unsigned int properties;
unsigned int cluster;
hb_buffer_ensure( buffer, buffer->out_pos + num_out );
/* XXX */
if ( !buffer->separate_out )
{
error = hb_buffer_duplicate_out_buffer( buffer );
if ( error )
return error;
}
hb_buffer_ensure_separate (buffer, buffer->out_pos + num_out);
properties = buffer->in_string[buffer->in_pos].properties;
cluster = buffer->in_string[buffer->in_pos].cluster;
if ( component == 0xFFFF )
if (component == 0xFFFF)
component = buffer->in_string[buffer->in_pos].component;
if ( ligID == 0xFFFF )
if (ligID == 0xFFFF)
ligID = buffer->in_string[buffer->in_pos].ligID;
for ( i = 0; i < num_out; i++ )
for (i = 0; i < num_out; i++)
{
HB_GlyphItem item = &buffer->out_string[buffer->out_pos + i];
hb_glyph_info_t *info = &buffer->out_string[buffer->out_pos + i];
item->gindex = hb_be_uint16_t (glyph_data_be[i]);
item->properties = properties;
item->cluster = cluster;
item->component = component;
item->ligID = ligID;
item->gproperty = HB_GLYPH_PROPERTY_UNKNOWN;
info->gindex = hb_be_uint16_t (glyph_data_be[i]);
info->properties = properties;
info->cluster = cluster;
info->component = component;
info->ligID = ligID;
info->gproperty = HB_BUFFER_GLYPH_PROPERTIES_UNKNOWN;
}
buffer->in_pos += num_in;
buffer->out_pos += num_out;
buffer->out_length = buffer->out_pos;
return HB_Err_Ok;
}
HB_INTERNAL HB_Error
HB_INTERNAL void
_hb_buffer_add_output_glyph (hb_buffer_t *buffer,
hb_codepoint_t glyph_index,
unsigned short component,
unsigned short ligID)
{
uint16_t glyph_data = hb_be_uint16_t (glyph_index);
hb_glyph_info_t *info;
return _hb_buffer_add_output_glyphs (buffer, 1, 1,
&glyph_data, component, ligID);
hb_buffer_ensure_separate (buffer, buffer->out_pos + 1);
info = &buffer->out_string[buffer->out_pos];
*info = buffer->in_string[buffer->in_pos];
info->gindex = glyph_index;
if (component != 0xFFFF)
info->component = component;
if (ligID != 0xFFFF)
info->ligID = ligID;
info->gproperty = HB_BUFFER_GLYPH_PROPERTIES_UNKNOWN;
buffer->in_pos++;
buffer->out_pos++;
buffer->out_length = buffer->out_pos;
}
HB_INTERNAL HB_Error
_hb_buffer_next_glyph (HB_Buffer buffer)
HB_INTERNAL void
_hb_buffer_next_glyph (hb_buffer_t *buffer)
{
HB_Error error;
if (buffer->separate_out)
{
hb_buffer_ensure (buffer, buffer->out_pos + 1);
@ -319,11 +323,9 @@ _hb_buffer_next_glyph (HB_Buffer buffer)
buffer->in_pos++;
buffer->out_pos++;
buffer->out_length = buffer->out_pos;
return HB_Err_Ok;
}
HB_INTERNAL HB_Error
HB_INTERNAL void
_hb_buffer_replace_glyph (hb_buffer_t *buffer,
hb_codepoint_t glyph_index)
{
@ -339,12 +341,10 @@ _hb_buffer_replace_glyph (hb_buffer_t *buffer,
{
return _hb_buffer_add_output_glyph (buffer, glyph_index, 0xFFFF, 0xFFFF);
}
return HB_Err_Ok;
}
HB_INTERNAL unsigned short
_hb_buffer_allocate_ligid (hb_buffer_t *buffer)
_hb_buffer_allocate_lig_id (hb_buffer_t *buffer)
{
return ++buffer->max_ligID;
return ++buffer->max_lig_id;
}

22
src/hb-buffer.h
View File

@ -34,16 +34,16 @@ HB_BEGIN_DECLS
/* XXX Hide structs? */
typedef struct HB_GlyphItemRec_ {
typedef struct _hb_glyph_info_t {
hb_codepoint_t gindex;
unsigned int properties;
unsigned int cluster;
unsigned short component;
unsigned short ligID;
unsigned short gproperty;
} HB_GlyphItemRec, *HB_GlyphItem;
} hb_glyph_info_t;
typedef struct HB_PositionRec_ {
typedef struct _hb_glyph_position_t {
hb_position_t x_pos;
hb_position_t y_pos;
hb_position_t x_advance;
@ -57,7 +57,7 @@ typedef struct HB_PositionRec_ {
short cursive_chain; /* character to which this connects,
may be positive or negative; used
only internally */
} HB_PositionRec, *HB_Position;
} hb_glyph_position_t;
typedef struct _hb_buffer_t {
@ -68,13 +68,13 @@ typedef struct _hb_buffer_t {
unsigned int in_pos;
unsigned int out_pos;
hb_bool_t separate_out;
HB_GlyphItem in_string;
HB_GlyphItem out_string;
HB_GlyphItem alt_string;
HB_Position positions;
unsigned int max_ligID;
} HB_BufferRec, *HB_Buffer, hb_buffer_t;
hb_bool_t separate_out;
hb_glyph_info_t *in_string;
hb_glyph_info_t *out_string;
hb_glyph_info_t *alt_string;
hb_glyph_position_t *positions;
unsigned int max_lig_id;
} hb_buffer_t;
hb_buffer_t *
hb_buffer_new (void);

29
src/hb-ot-layout-gpos-private.h
View File

@ -29,6 +29,7 @@
#include "hb-ot-layout-gsubgpos-private.h"
#define HB_OT_LAYOUT_GPOS_NO_LAST ((unsigned int) -1)
/* Shared Tables: ValueRecord, Anchor Table, and MarkArray */
@ -55,10 +56,10 @@ struct ValueFormat : USHORT
return _hb_popcount32 ((unsigned int) *this);
}
const void apply_value (hb_ot_layout_t *layout,
const char *base,
const Value *values,
HB_Position glyph_pos) const
const void apply_value (hb_ot_layout_t *layout,
const char *base,
const Value *values,
hb_glyph_position_t *glyph_pos) const
{
unsigned int x_ppem, y_ppem;
hb_16dot16_t x_scale, y_scale;
@ -379,7 +380,7 @@ struct PairPosFormat1
return false;
unsigned int j = buffer->in_pos + 1;
while (!_hb_ot_layout_check_glyph_property (layout, IN_ITEM (j), lookup_flag, &property))
while (!_hb_ot_layout_check_glyph_property (layout, IN_INFO (j), lookup_flag, &property))
{
if (HB_UNLIKELY (j == end))
return false;
@ -444,7 +445,7 @@ struct PairPosFormat2
return false;
unsigned int j = buffer->in_pos + 1;
while (!_hb_ot_layout_check_glyph_property (layout, IN_ITEM (j), lookup_flag, &property))
while (!_hb_ot_layout_check_glyph_property (layout, IN_INFO (j), lookup_flag, &property))
{
if (HB_UNLIKELY (j == end))
return false;
@ -664,7 +665,7 @@ struct CursivePosFormat1
struct hb_ot_layout_t::gpos_info_t *gpi = &layout->gpos_info;
hb_codepoint_t last_pos = gpi->last;
gpi->last = HB_OT_GPOS_NO_LAST;
gpi->last = HB_OT_LAYOUT_GPOS_NO_LAST;
/* We don't handle mark glyphs here. */
if (property == HB_OT_LAYOUT_GLYPH_CLASS_MARK)
@ -678,7 +679,7 @@ struct CursivePosFormat1
hb_position_t entry_x, entry_y, exit_x, exit_y;
if (last_pos == HB_OT_GPOS_NO_LAST || !record.entryAnchor)
if (last_pos == HB_OT_LAYOUT_GPOS_NO_LAST || !record.entryAnchor)
goto end;
(this+record.entryAnchor).get_anchor (layout, IN_CURGLYPH (), &entry_x, &entry_y);
@ -816,7 +817,7 @@ struct MarkBasePosFormat1
unsigned int index = base_index * classCount + mark_class;
(&base_array+base_array.matrix[index]).get_anchor (layout, IN_GLYPH (j), &base_x, &base_y);
HB_Position o = POSITION (buffer->in_pos);
hb_glyph_position_t *o = POSITION (buffer->in_pos);
o->x_pos = base_x - mark_x;
o->y_pos = base_y - mark_y;
o->x_advance = 0;
@ -960,7 +961,7 @@ struct MarkLigPosFormat1
unsigned int index = comp_index * classCount + mark_class;
(&lig_attach+lig_attach.matrix[index]).get_anchor (layout, IN_GLYPH (j), &lig_x, &lig_y);
HB_Position o = POSITION (buffer->in_pos);
hb_glyph_position_t *o = POSITION (buffer->in_pos);
o->x_pos = lig_x - mark_x;
o->y_pos = lig_y - mark_y;
o->x_advance = 0;
@ -1076,7 +1077,7 @@ struct MarkMarkPosFormat1
unsigned int index = mark2_index * classCount + mark1_class;
(&mark2_array+mark2_array.matrix[index]).get_anchor (layout, IN_GLYPH (j), &mark2_x, &mark2_y);
HB_Position o = POSITION (buffer->in_pos);
hb_glyph_position_t *o = POSITION (buffer->in_pos);
o->x_pos = mark2_x - mark1_x;
o->y_pos = mark2_y - mark1_y;
o->x_advance = 0;
@ -1257,7 +1258,7 @@ struct PosLookup : Lookup
unsigned int lookup_flag = get_flag ();
unsigned int property;
if (!_hb_ot_layout_check_glyph_property (layout, IN_CURITEM (), lookup_flag, &property))
if (!_hb_ot_layout_check_glyph_property (layout, IN_CURINFO (), lookup_flag, &property))
return false;
for (unsigned int i = 0; i < get_subtable_count (); i++)
@ -1276,7 +1277,7 @@ struct PosLookup : Lookup
if (HB_UNLIKELY (!buffer->in_length))
return false;
layout->gpos_info.last = HB_OT_GPOS_NO_LAST; /* no last valid glyph for cursive pos. */
layout->gpos_info.last = HB_OT_LAYOUT_GPOS_NO_LAST; /* no last valid glyph for cursive pos. */
buffer->in_pos = 0;
while (buffer->in_pos < buffer->in_length)
@ -1292,7 +1293,7 @@ struct PosLookup : Lookup
done = false;
/* Contrary to properties defined in GDEF, user-defined properties
will always stop a possible cursive positioning. */
layout->gpos_info.last = HB_OT_GPOS_NO_LAST;
layout->gpos_info.last = HB_OT_LAYOUT_GPOS_NO_LAST;
}
if (!done)

10
src/hb-ot-layout-gsub-private.h
View File

@ -303,7 +303,7 @@ struct Ligature
for (i = 1, j = buffer->in_pos + 1; i < count; i++, j++)
{
while (!_hb_ot_layout_check_glyph_property (layout, IN_ITEM (j), lookup_flag, &property))
while (!_hb_ot_layout_check_glyph_property (layout, IN_INFO (j), lookup_flag, &property))
{
if (HB_UNLIKELY (j + count - i == end))
return false;
@ -330,10 +330,10 @@ struct Ligature
1, (const uint16_t *) &ligGlyph,
0xFFFF,
IN_LIGID (buffer->in_pos) ?
0xFFFF : _hb_buffer_allocate_ligid (buffer));
0xFFFF : _hb_buffer_allocate_lig_id (buffer));
else
{
unsigned int lig_id = _hb_buffer_allocate_ligid (buffer);
unsigned int lig_id = _hb_buffer_allocate_lig_id (buffer);
_hb_buffer_add_output_glyph (buffer, ligGlyph, 0xFFFF, lig_id);
/* Now we must do a second loop to copy the skipped glyphs to
@ -345,7 +345,7 @@ struct Ligature
for ( i = 1; i < count; i++ )
{
while (!_hb_ot_layout_check_glyph_property (layout, IN_CURITEM(), lookup_flag, &property))
while (!_hb_ot_layout_check_glyph_property (layout, IN_CURINFO(), lookup_flag, &property))
_hb_buffer_add_output_glyph (buffer, IN_CURGLYPH(), i - 1, lig_id);
(buffer->in_pos)++;
@ -652,7 +652,7 @@ struct SubstLookup : Lookup
unsigned int lookup_flag = get_flag ();
unsigned int property;
if (!_hb_ot_layout_check_glyph_property (layout, IN_CURITEM (), lookup_flag, &property))
if (!_hb_ot_layout_check_glyph_property (layout, IN_CURINFO (), lookup_flag, &property))
return false;
for (unsigned int i = 0; i < get_subtable_count (); i++)

8
src/hb-ot-layout-gsubgpos-private.h
View File

@ -89,7 +89,7 @@ static inline bool match_input (APPLY_ARG_DEF,
for (i = 1, j = buffer->in_pos + 1; i < count; i++, j++)
{
while (!_hb_ot_layout_check_glyph_property (layout, IN_ITEM (j), lookup_flag, &property))
while (!_hb_ot_layout_check_glyph_property (layout, IN_INFO (j), lookup_flag, &property))
{
if (HB_UNLIKELY (j + count - i == end))
return false;
@ -116,7 +116,7 @@ static inline bool match_backtrack (APPLY_ARG_DEF,
for (unsigned int i = 0, j = buffer->out_pos - 1; i < count; i++, j--)
{
while (!_hb_ot_layout_check_glyph_property (layout, OUT_ITEM (j), lookup_flag, &property))
while (!_hb_ot_layout_check_glyph_property (layout, OUT_INFO (j), lookup_flag, &property))
{
if (HB_UNLIKELY (j + 1 == count - i))
return false;
@ -144,7 +144,7 @@ static inline bool match_lookahead (APPLY_ARG_DEF,
for (i = 0, j = buffer->in_pos + offset; i < count; i++, j++)
{
while (!_hb_ot_layout_check_glyph_property (layout, OUT_ITEM (j), lookup_flag, &property))
while (!_hb_ot_layout_check_glyph_property (layout, OUT_INFO (j), lookup_flag, &property))
{
if (HB_UNLIKELY (j + count - i == end))
return false;
@ -182,7 +182,7 @@ static inline bool apply_lookup (APPLY_ARG_DEF,
* Should be easy for in_place ones at least. */
for (unsigned int i = 0; i < count; i++)
{
while (!_hb_ot_layout_check_glyph_property (layout, IN_CURITEM (), lookup_flag, &property))
while (!_hb_ot_layout_check_glyph_property (layout, IN_CURINFO (), lookup_flag, &property))
{
if (HB_UNLIKELY (buffer->in_pos == end))
return true;

13
src/hb-ot-layout-private.h
View File

@ -83,15 +83,10 @@ _hb_ot_layout_set_glyph_property (hb_ot_layout_t *layout,
unsigned int property);
HB_INTERNAL hb_bool_t
_hb_ot_layout_check_glyph_property (hb_ot_layout_t *layout,
HB_GlyphItem gitem,
unsigned int lookup_flags,
unsigned int *property);
/* XXX */
void
hb_buffer_ensure (hb_buffer_t *buffer,
unsigned int size);
_hb_ot_layout_check_glyph_property (hb_ot_layout_t *layout,
hb_glyph_info_t *ginfo,
unsigned int lookup_flags,
unsigned int *property);
HB_END_DECLS

16
src/hb-ot-layout.cc
View File

@ -160,22 +160,22 @@ _hb_ot_layout_get_glyph_property (hb_ot_layout_t *layout,
}
HB_INTERNAL hb_bool_t
_hb_ot_layout_check_glyph_property (hb_ot_layout_t *layout,
HB_GlyphItem gitem,
unsigned int lookup_flags,
unsigned int *property)
_hb_ot_layout_check_glyph_property (hb_ot_layout_t *layout,
hb_glyph_info_t *ginfo,
unsigned int lookup_flags,
unsigned int *property)
{
hb_ot_layout_glyph_class_t basic_glyph_class;
unsigned int desired_attachment_class;
if (gitem->gproperty == HB_BUFFER_GLYPH_PROPERTIES_UNKNOWN)
if (ginfo->gproperty == HB_BUFFER_GLYPH_PROPERTIES_UNKNOWN)
{
gitem->gproperty = *property = _hb_ot_layout_get_glyph_property (layout, gitem->gindex);
if (gitem->gproperty == HB_OT_LAYOUT_GLYPH_CLASS_UNCLASSIFIED)
ginfo->gproperty = *property = _hb_ot_layout_get_glyph_property (layout, ginfo->gindex);
if (ginfo->gproperty == HB_OT_LAYOUT_GLYPH_CLASS_UNCLASSIFIED)
return false;
}
*property = gitem->gproperty;
*property = ginfo->gproperty;
/* If the glyph was found in the MarkAttachmentClass table,
* then that class value is the high byte of the result,

29
src/hb-private.h
View File

@ -100,33 +100,4 @@ _hb_popcount32 (uint32_t mask)
#endif
}
/*
* buffer
*/
/* XXX */
#define HB_BUFFER_GLYPH_PROPERTIES_UNKNOWN 0xFFFF
#define HB_OT_GPOS_NO_LAST ((unsigned int) -1)
/* XXX */
typedef enum {
/* no error */
HB_Err_Ok = 0x0000,
HB_Err_Not_Covered = 0xFFFF,
/* _hb_err() is called whenever returning the following errors,
* and in a couple places for HB_Err_Not_Covered too. */
/* programmer error */
HB_Err_Invalid_Argument = 0x1A66,
/* font error */
HB_Err_Invalid_SubTable_Format = 0x157F,
HB_Err_Invalid_SubTable = 0x1570,
HB_Err_Read_Error = 0x6EAD,
/* system error */
HB_Err_Out_Of_Memory = 0xDEAD
} HB_Error;
#endif /* HB_PRIVATE_H */