[myanmar] If there's no GSUB table, pick myanmar shaper

Needed for morx+kern mark-zeroing interaction.  All other scripts
work this way.
This commit is contained in:
Behdad Esfahbod 2018-11-22 14:45:46 -05:00
parent 25f52f58c2
commit 7dc561984b
1 changed files with 13 additions and 3 deletions

View File

@ -268,10 +268,19 @@ hb_ot_shape_complex_categorize (const hb_ot_shape_planner_t *planner)
return &_hb_ot_complex_shaper_khmer; return &_hb_ot_complex_shaper_khmer;
case HB_SCRIPT_MYANMAR: case HB_SCRIPT_MYANMAR:
if (planner->map.chosen_script[0] == HB_TAG ('m','y','m','2')) /* If the designer designed the font for the 'DFLT' script,
return &_hb_ot_complex_shaper_myanmar; * (or we ended up arbitrarily pick 'latn'), use the default shaper.
else * Otherwise, use the specific shaper.
*
* If designer designed for 'mymr' tag, also send to default
* shaper. That's tag used from before Myanmar shaping spec
* was developed. The shaping spec uses 'mym2' tag. */
if (planner->map.chosen_script[0] == HB_TAG ('D','F','L','T') ||
planner->map.chosen_script[0] == HB_TAG ('l','a','t','n') ||
planner->map.chosen_script[0] == HB_TAG ('m','y','m','r'))
return &_hb_ot_complex_shaper_default; return &_hb_ot_complex_shaper_default;
else
return &_hb_ot_complex_shaper_myanmar;
/* Unicode-2.0 additions */ /* Unicode-2.0 additions */
@ -373,6 +382,7 @@ hb_ot_shape_complex_categorize (const hb_ot_shape_planner_t *planner)
else else
return &_hb_ot_complex_shaper_use; return &_hb_ot_complex_shaper_use;
/* https://github.com/harfbuzz/harfbuzz/issues/1162 */ /* https://github.com/harfbuzz/harfbuzz/issues/1162 */
case HB_SCRIPT_MYANMAR_ZAWGYI: case HB_SCRIPT_MYANMAR_ZAWGYI: