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[Indic] Add a table of consonant positions
[profile/ivi/org.tizen.video-player.git] / src / hb-ot-shape-complex-indic.cc
diff --git a/src/hb-ot-shape-complex-indic.cc b/src/hb-ot-shape-complex-indic.cc
index c52c5f7..a6edf85 100644 (file)
--- a/src/hb-ot-shape-complex-indic.cc
+++ b/src/hb-ot-shape-complex-indic.cc
@@ -38,10 +38,12 @@ HB_BEGIN_DECLS
 /* Cateories used in the OpenType spec:
  * https://www.microsoft.com/typography/otfntdev/devanot/shaping.aspx
  */
+/* Note: This enum is duplicated in the -machine.rl source file.
+ * Not sure how to avoid duplication. */
 enum indic_category_t {
   OT_X = 0,
   OT_C,
-  OT_Ra,
+  OT_Ra, /* Not explicitly listed in the OT spec, but used in the grammar. */
   OT_V,
   OT_N,
   OT_H,
@@ -121,18 +123,142 @@ enum indic_matra_category_t {
 
 #include "hb-ot-shape-complex-indic-table.hh"
 
-static const hb_tag_t indic_basic_features[] =
+/* XXX
+ * This is a hack for now.  We should:
+ * 1. Move this data into the main Indic table,
+ * and/or
+ * 2. Probe font lookups to determine consonant positions.
+ */
+static const struct {
+  hb_codepoint_t u;
+  indic_matra_category_t position;
+} consonant_positions[] = {
+  {0x0930, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x09AC, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x09AF, INDIC_MATRA_CATEGORY_RIGHT},
+  {0x09B0, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x09F0, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0A2F, INDIC_MATRA_CATEGORY_RIGHT},
+  {0x0A30, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0A35, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0A39, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0AB0, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0B24, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0B28, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0B2C, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0B2D, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0B2E, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0B2F, INDIC_MATRA_CATEGORY_RIGHT},
+  {0x0B30, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0B32, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0B33, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0B5F, INDIC_MATRA_CATEGORY_RIGHT},
+  {0x0B71, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C15, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C16, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C17, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C18, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C19, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C1A, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C1B, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C1C, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C1D, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C1E, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C1F, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C20, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C21, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C22, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C23, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C24, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C25, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C26, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C27, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C28, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C2A, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C2B, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C2C, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C2D, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C2E, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C2F, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C30, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C32, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C33, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C35, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C36, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C37, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C38, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C39, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C95, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C96, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C97, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C98, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C99, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C9A, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C9B, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C9C, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C9D, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C9E, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0C9F, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0CA0, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0CA1, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0CA2, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0CA3, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0CA4, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0CA5, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0CA6, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0CA7, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0CA8, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0CAA, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0CAB, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0CAC, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0CAD, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0CAE, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0CAF, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0CB0, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0CB2, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0CB3, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0CB5, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0CB6, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0CB7, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0CB8, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0CB9, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0CDE, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0D2F, INDIC_MATRA_CATEGORY_RIGHT},
+  {0x0D30, INDIC_MATRA_CATEGORY_RIGHT},
+  {0x0D32, INDIC_MATRA_CATEGORY_BOTTOM},
+  {0x0D35, INDIC_MATRA_CATEGORY_RIGHT},
+};
+
+
+static const struct {
+  hb_tag_t tag;
+  hb_bool_t is_global;
+} indic_basic_features[] =
 {
-  HB_TAG('n','u','k','t'),
-  HB_TAG('a','k','h','n'),
-  HB_TAG('r','p','h','f'),
-  HB_TAG('r','k','r','f'),
-  HB_TAG('p','r','e','f'),
-  HB_TAG('b','l','w','f'),
-  HB_TAG('h','a','l','f'),
-  HB_TAG('v','a','t','u'),
-  HB_TAG('p','s','t','f'),
-  HB_TAG('c','j','c','t'),
+  {HB_TAG('n','u','k','t'), true},
+  {HB_TAG('a','k','h','n'), false},
+  {HB_TAG('r','p','h','f'), false},
+  {HB_TAG('r','k','r','f'), false},
+  {HB_TAG('p','r','e','f'), false},
+  {HB_TAG('b','l','w','f'), false},
+  {HB_TAG('h','a','l','f'), false},
+  {HB_TAG('v','a','t','u'), true},
+  {HB_TAG('p','s','t','f'), false},
+  {HB_TAG('c','j','c','t'), true},
+};
+
+/* Same order as the indic_basic_features array */
+enum {
+  _NUKT,
+  AKHN,
+  RPHF,
+  RKRF,
+  PREF,
+  BLWF,
+  HALF,
+  _VATU,
+  PSTF,
+  _CJCT,
 };
 
 static const hb_tag_t indic_other_features[] =
@@ -153,7 +279,7 @@ void
 _hb_ot_shape_complex_collect_features_indic (hb_ot_shape_planner_t *planner, const hb_segment_properties_t *props HB_UNUSED)
 {
   for (unsigned int i = 0; i < ARRAY_LENGTH (indic_basic_features); i++)
-    planner->map.add_bool_feature (indic_basic_features[i], false);
+    planner->map.add_bool_feature (indic_basic_features[i].tag, indic_basic_features[i].is_global);
 
   for (unsigned int i = 0; i < ARRAY_LENGTH (indic_other_features); i++)
     planner->map.add_bool_feature (indic_other_features[i], true);
@@ -182,7 +308,7 @@ _hb_ot_shape_complex_setup_masks_indic      (hb_ot_shape_context_t *c)
   hb_mask_t mask_array[ARRAY_LENGTH (indic_basic_features)] = {0};
   unsigned int num_masks = ARRAY_LENGTH (indic_basic_features);
   for (unsigned int i = 0; i < num_masks; i++)
-    mask_array[i] = c->plan->map.get_1_mask (indic_basic_features[i]);
+    mask_array[i] = c->plan->map.get_1_mask (indic_basic_features[i].tag);
 }
 
 
Domain: Applications / Uncategorized;