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[Indic] Unbreak old scriptures 

Brings down failures with Lohit-Telugu from 57% to 1.40%.
This commit is contained in:
Behdad Esfahbod 2012-07-20 10:30:24 -04:00
parent 900cf3d449
commit 51e764de44
1 changed files with 3 additions and 2 deletions
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5
src/hb-ot-shape-complex-indic.cc
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@ -123,8 +123,9 @@ consonant_position (hb_codepoint_t u, hb_ot_map_t *map, hb_font_t *font)
if ((u & ~0x007F) == 0x0D80) virama = 0x0DCA; /* Sinahla */
hb_codepoint_t glyphs[2];
hb_font_get_glyph (font, virama, 0, &glyphs[0]);
hb_font_get_glyph (font, u, 0, &glyphs[1]);
unsigned int virama_pos = IS_OLD_INDIC_TAG (map->get_chosen_script (0)) ? 1 : 0;
hb_font_get_glyph (font, virama, 0, &glyphs[virama_pos]);
hb_font_get_glyph (font, u, 0, &glyphs[1-virama_pos]);
hb_face_t *face = hb_font_get_face (font);
if (would_substitute (glyphs, ARRAY_LENGTH (glyphs), HB_TAG('p','r','e','f'), map, face)) return POS_BELOW_C;