Add buffer serialization / deserialization API
Two output formats for now: TEXT, and JSON. For example:
hb-shape --output-format=json
Deserialization API is added, but not implemented yet.
diff --git a/util/options.cc b/util/options.cc
index ca621bf..44c9173 100644
--- a/util/options.cc
+++ b/util/options.cc
@@ -615,46 +615,23 @@
void
format_options_t::serialize_glyphs (hb_buffer_t *buffer,
hb_font_t *font,
- hb_bool_t utf8_clusters,
+ hb_buffer_serialize_format_t output_format,
+ hb_buffer_serialize_flags_t flags,
GString *gs)
{
- unsigned int num_glyphs = hb_buffer_get_length (buffer);
- hb_glyph_info_t *info = hb_buffer_get_glyph_infos (buffer, NULL);
- hb_glyph_position_t *pos = hb_buffer_get_glyph_positions (buffer, NULL);
- hb_direction_t direction = hb_buffer_get_direction (buffer);
-
g_string_append_c (gs, '[');
- for (unsigned int i = 0; i < num_glyphs; i++)
- {
- if (i)
- g_string_append_c (gs, '|');
+ unsigned int num_glyphs = hb_buffer_get_length (buffer);
+ unsigned int start = 0;
- char glyph_name[128];
- if (show_glyph_names) {
- hb_font_glyph_to_string (font, info->codepoint, glyph_name, sizeof (glyph_name));
- g_string_append_printf (gs, "%s", glyph_name);
- } else
- g_string_append_printf (gs, "%u", info->codepoint);
-
- if (show_clusters) {
- g_string_append_printf (gs, "=%u", info->cluster);
- if (utf8_clusters)
- g_string_append (gs, "u8");
- }
-
- if (show_positions && (pos->x_offset || pos->y_offset)) {
- g_string_append_printf (gs, "@%d,%d", pos->x_offset, pos->y_offset);
- }
- if (show_positions) {
- g_string_append_c (gs, '+');
- if (HB_DIRECTION_IS_HORIZONTAL (direction) || pos->x_advance)
- g_string_append_printf (gs, "%d", pos->x_advance);
- if (HB_DIRECTION_IS_VERTICAL (direction) || pos->y_advance)
- g_string_append_printf (gs, ",%d", pos->y_advance);
- }
-
- info++;
- pos++;
+ while (start < num_glyphs) {
+ char buf[1024];
+ unsigned int consumed;
+ start += hb_buffer_serialize_glyphs (buffer, start, num_glyphs,
+ buf, sizeof (buf), &consumed,
+ font, output_format, flags);
+ if (!consumed)
+ break;
+ g_string_append (gs, buf);
}
g_string_append_c (gs, ']');
}
@@ -671,7 +648,6 @@
const char *text,
unsigned int text_len,
hb_font_t *font,
- hb_bool_t utf8_clusters,
GString *gs)
{
if (show_text) {
@@ -703,10 +679,11 @@
const char *text,
unsigned int text_len,
hb_font_t *font,
- hb_bool_t utf8_clusters,
+ hb_buffer_serialize_format_t output_format,
+ hb_buffer_serialize_flags_t format_flags,
GString *gs)
{
serialize_line_no (line_no, gs);
- serialize_glyphs (buffer, font, utf8_clusters, gs);
+ serialize_glyphs (buffer, font, output_format, format_flags, gs);
g_string_append_c (gs, '\n');
}
