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Add API/cmdline to show glyph extents when serializing buffer 

New API: HB_BUFFER_SERIALIZE_FLAG_GLYPH_EXTENTS

hb-shape now accepts --show-extents.

Patch from Simon Cozens.
This commit is contained in:
Behdad Esfahbod 2015-08-24 13:49:55 +01:00
parent 2cee5b68a0
commit fdd1770e00
5 changed files with 24 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
src/hb-buffer-serialize.cc
View File

@ -145,6 +145,16 @@ _hb_buffer_serialize_glyphs_json (hb_buffer_t *buffer,
pos[i].x_advance, pos[i].y_advance);
}
if (flags & HB_BUFFER_SERIALIZE_FLAG_GLYPH_EXTENTS)
{
hb_glyph_extents_t extents;
hb_font_get_glyph_extents(font, info[i].codepoint, &extents);
p += MAX (0, snprintf (p, ARRAY_LENGTH (b) - (p - b), ",\"xb\":%d,\"yb\":%d",
extents.x_bearing, extents.y_bearing));
p += MAX (0, snprintf (p, ARRAY_LENGTH (b) - (p - b), ",\"w\":%d,\"h\":%d",
extents.width, extents.height));
}
*p++ = '}';
unsigned int l = p - b;
@ -210,6 +220,13 @@ _hb_buffer_serialize_glyphs_text (hb_buffer_t *buffer,
p += MAX (0, snprintf (p, ARRAY_LENGTH (b) - (p - b), ",%d", pos[i].y_advance));
}
if (flags & HB_BUFFER_SERIALIZE_FLAG_GLYPH_EXTENTS)
{
hb_glyph_extents_t extents;
hb_font_get_glyph_extents(font, info[i].codepoint, &extents);
p += MAX (0, snprintf (p, ARRAY_LENGTH (b) - (p - b), "<%d,%d,%d,%d>", extents.x_bearing, extents.y_bearing, extents.width, extents.height));
}
unsigned int l = p - b;
if (buf_size > l)
{

3
src/hb-buffer.h
View File

@ -323,7 +323,8 @@ typedef enum { /*< flags >*/
HB_BUFFER_SERIALIZE_FLAG_DEFAULT = 0x00000000u,
HB_BUFFER_SERIALIZE_FLAG_NO_CLUSTERS = 0x00000001u,
HB_BUFFER_SERIALIZE_FLAG_NO_POSITIONS = 0x00000002u,
HB_BUFFER_SERIALIZE_FLAG_NO_GLYPH_NAMES = 0x00000004u
HB_BUFFER_SERIALIZE_FLAG_NO_GLYPH_NAMES = 0x00000004u,
HB_BUFFER_SERIALIZE_FLAG_GLYPH_EXTENTS = 0x00000008u
} hb_buffer_serialize_flags_t;
typedef enum {

2
util/hb-shape.cc
View File

@ -70,6 +70,8 @@ struct output_buffer_t
flags |= HB_BUFFER_SERIALIZE_FLAG_NO_CLUSTERS;
if (!format.show_positions)
flags |= HB_BUFFER_SERIALIZE_FLAG_NO_POSITIONS;
if (format.show_extents)
flags |= HB_BUFFER_SERIALIZE_FLAG_GLYPH_EXTENTS;
format_flags = (hb_buffer_serialize_flags_t) flags;
}
void new_line (void)

1
util/options.cc
View File

@ -706,6 +706,7 @@ format_options_t::add_options (option_parser_t *parser)
G_OPTION_ARG_NONE, &this->show_positions, "Do not output glyph positions", NULL},
{"no-clusters", 0, G_OPTION_FLAG_REVERSE,
G_OPTION_ARG_NONE, &this->show_clusters, "Do not output cluster indices", NULL},
{"show-extents", 0, 0, G_OPTION_ARG_NONE, &this->show_extents, "Output glyph extents", NULL},
{NULL}
};
parser->add_group (entries,

2
util/options.hh
View File

@ -410,6 +410,7 @@ struct format_options_t : option_group_t
show_text = false;
show_unicode = false;
show_line_num = false;
show_extents = false;
add_options (parser);
}
@ -450,6 +451,7 @@ struct format_options_t : option_group_t
hb_bool_t show_text;
hb_bool_t show_unicode;
hb_bool_t show_line_num;
hb_bool_t show_extents;
};