diff --git a/legacy/evas/src/lib/engines/common/evas_font_main.c b/legacy/evas/src/lib/engines/common/evas_font_main.c index 2240fdf57c..bd4c6785f9 100644 --- a/legacy/evas/src/lib/engines/common/evas_font_main.c +++ b/legacy/evas/src/lib/engines/common/evas_font_main.c @@ -508,41 +508,39 @@ struct _Font_Char_Index EAPI FT_UInt evas_common_get_char_index(RGBA_Font_Int* fi, Eina_Unicode gl) { - static const Eina_Unicode mapfix[] = + static const unsigned short mapfix[] = { - 0x25c6, 0x1, - 0x2592, 0x2, - 0x2409, 0x3, - 0x240c, 0x4, - 0x240d, 0x5, - 0x240a, 0x6, 0x00b0, 0x7, 0x00b1, 0x8, - 0x2424, 0x9, - 0x240b, 0xa, - 0x2518, 0xb, - 0x2510, 0xc, - 0x250c, 0xd, - 0x2514, 0xe, - 0x253c, 0xf, - 0x23ba, 0x10, - 0x23bb, 0x11, - 0x2500, 0x12, - 0x23bc, 0x13, - 0x23bd, 0x14, - 0x251c, 0x15, - 0x2524, 0x16, - 0x2534, 0x17, - 0x252c, 0x18, - 0x2502, 0x19, + 0x00b7, 0x1f, + 0x03c0, 0x1c, + 0x20a4, 0xa3, + 0x2260, 0x1d, 0x2264, 0x1a, 0x2265, 0x1b, - 0x03c0, 0x1c, - 0x2260, 0x1d, - 0x00a3, 0xa3, - 0x00b7, 0x1f, - 0x20a4, 0xa3, - 0x0000, 0x0 + 0x23ba, 0x10, + 0x23bb, 0x11, + 0x23bc, 0x13, + 0x23bd, 0x14, + 0x2409, 0x3, + 0x240a, 0x6, + 0x240b, 0xa, + 0x240c, 0x4, + 0x240d, 0x5, + 0x2424, 0x9, + 0x2500, 0x12, + 0x2502, 0x19, + 0x250c, 0xd, + 0x2510, 0xc, + 0x2514, 0xe, + 0x2518, 0xb, + 0x251c, 0x15, + 0x2524, 0x16, + 0x252c, 0x18, + 0x2534, 0x17, + 0x253c, 0xf, + 0x2592, 0x2, + 0x25c6, 0x1, }; Font_Char_Index result; //FT_UInt ret; @@ -575,20 +573,48 @@ evas_common_get_char_index(RGBA_Font_Int* fi, Eina_Unicode gl) #ifdef HAVE_PTHREAD // pthread_mutex_unlock(&fi->ft_mutex); #endif - if (result.index <= 0) + // this is a workaround freetype bugs where for a bitmap old style font + // even if it has unicode information and mappings, they are not used + // to find terminal line/drawing chars, so do this by hand with a table + if ((result.index <= 0) && (fi->src->ft.face->num_fixed_sizes == 1) && + (fi->src->ft.face->num_glyphs < 512)) { - int i; - - for (i = 0; mapfix[i]; i += 2) + int i, min = 0, max; + + // binary search through sorted table of codepoints to new + // codepoints with a guess that bitmap font is playing the old + // game of putting line drawing chars in specific ranges + max = sizeof(mapfix) / (sizeof(mapfix[0]) * 2); + i = (min + max) / 2; + for (;;) { - if (gl == mapfix[i]) + unsigned short v; + + v = mapfix[i << 1]; + if (gl == v) { - gl = mapfix[i + 1]; + gl = mapfix[(i << 1) + 1]; FTLOCK(); result.index = FT_Get_Char_Index(fi->src->ft.face, gl); FTUNLOCK(); break; } + // failure to find at all + if ((max - min) <= 2) break; + // if glyph above out position... + if (gl > v) + { + min = i; + if ((max - min) == 2) i = max; + else i = (min + max) / 2; + } + // if glyph below out position + else if (gl < v) + { + max = i; + if ((max - min) == 2) i = min; + else i = (min + max) / 2; + } } } return result.index;