From 32cf4a2c136dc73ad9f2b30549c23e841d43e0bd Mon Sep 17 00:00:00 2001 From: Behdad Esfahbod Date: Wed, 16 May 2007 01:43:28 +0000 Subject: Port to new OpenType APIs. Add standard features (ccmp, locl, calt, kern, 2007-05-15 Behdad Esfahbod * modules/khmer/khmer-fc.c (khmer_engine_shape): * modules/tibetan/tibetan-fc.c (tibetan_engine_shape): Port to new OpenType APIs. Add standard features (ccmp, locl, calt, kern, mark, mkmk). svn path=/trunk/; revision=2307 --- modules/khmer/khmer-fc.c | 142 +++++++++++++++-------------------------------- 1 file changed, 44 insertions(+), 98 deletions(-) (limited to 'modules/khmer/khmer-fc.c') diff --git a/modules/khmer/khmer-fc.c b/modules/khmer/khmer-fc.c index 07127be1..05011c5f 100644 --- a/modules/khmer/khmer-fc.c +++ b/modules/khmer/khmer-fc.c @@ -352,17 +352,16 @@ enum property_flags dist = 0x0200, blwm = 0x0400, abvm = 0x0800, - mkmk = 0x1000 }; enum properties { - blwf_p = /*(blwf | blws | clig | dist | blwm | mkmk)*/ (abvf | pref | pstf | pres | abvs | psts | abvm), - pstf_p = /*(blwf | blws | pref | pres | pstf | psts | clig | dist | blwm)*/ (abvf | abvs | abvm | mkmk), - abvf_p = /*(abvf | abvs | clig | dist | abvm | mkmk)*/ (pref | pstf | blwf | pres | blws | psts | blwm), - pref_p = /*(pref | pres | clig | dist)*/ (abvf | pstf | blwf | blws | abvs | psts | blwm | abvm | mkmk), - default_p = /*(pres | blws | clig | dist | abvm | blwm | mkmk)*/ (pref | blwf |abvf | pstf | abvs | psts) + blwf_p = /*(blwf | blws | clig | dist | blwm)*/ (abvf | pref | pstf | pres | abvs | psts | abvm), + pstf_p = /*(blwf | blws | pref | pres | pstf | psts | clig | dist | blwm)*/ (abvf | abvs | abvm), + abvf_p = /*(abvf | abvs | clig | dist | abvm)*/ (pref | pstf | blwf | pres | blws | psts | blwm), + pref_p = /*(pref | pres | clig | dist)*/ (abvf | pstf | blwf | blws | abvs | psts | blwm | abvm), + default_p = /*(pres | blws | clig | dist | abvm | blwm)*/ (pref | blwf |abvf | pstf | abvs | psts) }; @@ -414,93 +413,31 @@ find_syllable (const gunichar *chars, return cursor; } - -static void -maybe_add_GSUB_feature (PangoOTRuleset *ruleset, - PangoOTInfo *info, - guint script_index, - PangoOTTag tag, - gulong property_bit) -{ - guint feature_index; - - if (pango_ot_info_find_feature (info, PANGO_OT_TABLE_GSUB, - tag, script_index, PANGO_OT_DEFAULT_LANGUAGE, &feature_index)) - pango_ot_ruleset_add_feature (ruleset, PANGO_OT_TABLE_GSUB, feature_index, - property_bit); -} - - -static void -maybe_add_GPOS_feature (PangoOTRuleset *ruleset, - PangoOTInfo *info, - guint script_index, - PangoOTTag tag, - gulong property_bit) +static const PangoOTFeatureMap gsub_features[] = { - guint feature_index; - - if (pango_ot_info_find_feature (info, PANGO_OT_TABLE_GPOS, - tag, script_index, PANGO_OT_DEFAULT_LANGUAGE, &feature_index)) - pango_ot_ruleset_add_feature (ruleset, PANGO_OT_TABLE_GPOS, feature_index, - property_bit); -} - + {"ccmp", PANGO_OT_ALL_GLYPHS}, + {"locl", PANGO_OT_ALL_GLYPHS}, + {"pref", pref}, + {"blwf", blwf}, + {"abvf", abvf}, + {"pstf", pstf}, + {"pres", pres}, + {"blws", blws}, + {"abvs", abvs}, + {"psts", psts}, + {"clig", clig}, + {"calt", PANGO_OT_ALL_GLYPHS} +}; -static PangoOTRuleset * -get_ruleset (FT_Face face) +static const PangoOTFeatureMap gpos_features[] = { - PangoOTRuleset *ruleset; - static GQuark ruleset_quark = 0; - - PangoOTInfo *info = pango_ot_info_get (face); - - if (!ruleset_quark) - ruleset_quark = g_quark_from_string ("pango-khmer-ruleset"); - - if (!info) - return NULL; - - ruleset = g_object_get_qdata (G_OBJECT (info), ruleset_quark); - - if (!ruleset) - { - PangoOTTag khmer_tag = FT_MAKE_TAG ('k', 'h', 'm', 'r'); - guint script_index; - - ruleset = pango_ot_ruleset_new (info); - - if (pango_ot_info_find_script (info, PANGO_OT_TABLE_GSUB, - khmer_tag, &script_index)) - { - maybe_add_GSUB_feature (ruleset, info, script_index, FT_MAKE_TAG ('p','r','e','f'), pref); - maybe_add_GSUB_feature (ruleset, info, script_index, FT_MAKE_TAG ('b','l','w','f'), blwf); - maybe_add_GSUB_feature (ruleset, info, script_index, FT_MAKE_TAG ('a','b','v','f'), abvf); - maybe_add_GSUB_feature (ruleset, info, script_index, FT_MAKE_TAG ('p','s','t','f'), pstf); - - maybe_add_GSUB_feature (ruleset, info, script_index, FT_MAKE_TAG ('p','r','e','s'), pres); - maybe_add_GSUB_feature (ruleset, info, script_index, FT_MAKE_TAG ('b','l','w','s'), blws); - maybe_add_GSUB_feature (ruleset, info, script_index, FT_MAKE_TAG ('a','b','v','s'), abvs); - maybe_add_GSUB_feature (ruleset, info, script_index, FT_MAKE_TAG ('p','s','t','s'), psts); - maybe_add_GSUB_feature (ruleset, info, script_index, FT_MAKE_TAG ('c','l','i','g'), clig); - } - - if (pango_ot_info_find_script (info, PANGO_OT_TABLE_GPOS, - khmer_tag, &script_index)) - { - maybe_add_GPOS_feature (ruleset, info, script_index, FT_MAKE_TAG ('d','i','s','t'), dist); - maybe_add_GPOS_feature (ruleset, info, script_index, FT_MAKE_TAG ('b','l','w','m'), blwm); - maybe_add_GPOS_feature (ruleset, info, script_index, FT_MAKE_TAG ('a','b','v','m'), abvm); - maybe_add_GPOS_feature (ruleset, info, script_index, FT_MAKE_TAG ('m','k','m','k'), mkmk); - } - - g_object_set_qdata_full (G_OBJECT (info), ruleset_quark, ruleset, - (GDestroyNotify)g_object_unref); - } - - return ruleset; -} - + {"dist", dist}, + {"blwm", blwm}, + {"abvm", abvm}, + {"kern", PANGO_OT_ALL_GLYPHS}, + {"mark", PANGO_OT_ALL_GLYPHS}, + {"mkmk", PANGO_OT_ALL_GLYPHS} +}; static PangoGlyph get_index (PangoFcFont *fc_font, gunichar wc) @@ -522,7 +459,8 @@ khmer_engine_shape (PangoEngineShape *engine, { PangoFcFont *fc_font; FT_Face face; - PangoOTRuleset *ruleset; + PangoOTRulesetDescription desc; + const PangoOTRuleset *ruleset; PangoOTBuffer *buffer; glong n_chars; gunichar *wcs; @@ -715,14 +653,22 @@ khmer_engine_shape (PangoEngineShape *engine, cursor = syllable; /* move the pointer to the start of next syllable */ } /* while */ - /* do gsub processing */ - ruleset = get_ruleset (face); - if (ruleset != NULL) - { - pango_ot_ruleset_substitute (ruleset, buffer); - pango_ot_ruleset_position (ruleset, buffer); - } + desc.script = analysis->script; + desc.language = analysis->language; + + desc.n_static_gsub_features = G_N_ELEMENTS (gsub_features); + desc.static_gsub_features = gsub_features; + desc.n_static_gpos_features = G_N_ELEMENTS (gpos_features); + desc.static_gpos_features = gpos_features; + + /* TODO populate other_features from analysis->extra_attrs */ + desc.n_other_features = 0; + desc.other_features = NULL; + + ruleset = pango_ot_ruleset_get_for (pango_ot_info_get (face), &desc); + pango_ot_ruleset_substitute (ruleset, buffer); + pango_ot_ruleset_position (ruleset, buffer); pango_ot_buffer_output (buffer, glyphs); g_free (wcs); -- cgit v1.2.1