From b4c0829bc18b696f140a260fa2e1089d10164519 Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Tue, 21 Jul 2015 09:31:19 +0100
Subject: [PATCH] [USE] Remove unused Unicode data enums from USE C++ side

---
 src/hb-ot-shape-complex-use-private.hh | 66 +-------------------------
 src/hb-ot-shape-complex-use.cc         | 14 +-----
 2 files changed, 3 insertions(+), 77 deletions(-)

diff --git a/src/hb-ot-shape-complex-use-private.hh b/src/hb-ot-shape-complex-use-private.hh
index 835dbaf75..fc0cfc50b 100644
--- a/src/hb-ot-shape-complex-use-private.hh
+++ b/src/hb-ot-shape-complex-use-private.hh
@@ -35,7 +35,7 @@
 #include "hb-ot-shape-complex-private.hh"
 
 
-#define USE_TABLE_ELEMENT_TYPE uint16_t
+#define USE_TABLE_ELEMENT_TYPE uint8_t
 
 /* Cateories used in the Universal Shaping Engine spec:
  * https://www.microsoft.com/typography/OpenTypeDev/USE/intro.htm
@@ -90,70 +90,6 @@ enum use_category_t {
   USE_SMBlw	= 42	/* SYM_MOD_BELOW */
 };
 
-/* Categories used in IndicSyllabicCategory.txt from UCD. */
-enum indic_syllabic_category_t
-{
-  INDIC_SYLLABIC_CATEGORY_AVAGRAHA,
-  INDIC_SYLLABIC_CATEGORY_BINDU,
-  INDIC_SYLLABIC_CATEGORY_BRAHMI_JOINING_NUMBER,
-  INDIC_SYLLABIC_CATEGORY_CANTILLATION_MARK,
-  INDIC_SYLLABIC_CATEGORY_CONSONANT,
-  INDIC_SYLLABIC_CATEGORY_CONSONANT_DEAD,
-  INDIC_SYLLABIC_CATEGORY_CONSONANT_FINAL,
-  INDIC_SYLLABIC_CATEGORY_CONSONANT_HEAD_LETTER,
-  INDIC_SYLLABIC_CATEGORY_CONSONANT_KILLER,
-  INDIC_SYLLABIC_CATEGORY_CONSONANT_MEDIAL,
-  INDIC_SYLLABIC_CATEGORY_CONSONANT_PLACEHOLDER,
-  INDIC_SYLLABIC_CATEGORY_CONSONANT_PRECEDING_REPHA,
-  INDIC_SYLLABIC_CATEGORY_CONSONANT_PREFIXED,
-  INDIC_SYLLABIC_CATEGORY_CONSONANT_SUBJOINED,
-  INDIC_SYLLABIC_CATEGORY_CONSONANT_SUCCEEDING_REPHA,
-  INDIC_SYLLABIC_CATEGORY_CONSONANT_WITH_STACKER,
-  INDIC_SYLLABIC_CATEGORY_GEMINATION_MARK,
-  INDIC_SYLLABIC_CATEGORY_INVISIBLE_STACKER,
-  INDIC_SYLLABIC_CATEGORY_JOINER,
-  INDIC_SYLLABIC_CATEGORY_MODIFYING_LETTER,
-  INDIC_SYLLABIC_CATEGORY_NON_JOINER,
-  INDIC_SYLLABIC_CATEGORY_NUKTA,
-  INDIC_SYLLABIC_CATEGORY_NUMBER,
-  INDIC_SYLLABIC_CATEGORY_NUMBER_JOINER,
-  INDIC_SYLLABIC_CATEGORY_OTHER,
-  INDIC_SYLLABIC_CATEGORY_PURE_KILLER,
-  INDIC_SYLLABIC_CATEGORY_REGISTER_SHIFTER,
-  INDIC_SYLLABIC_CATEGORY_SYLLABLE_MODIFIER,
-  INDIC_SYLLABIC_CATEGORY_TONE_LETTER,
-  INDIC_SYLLABIC_CATEGORY_TONE_MARK,
-  INDIC_SYLLABIC_CATEGORY_VIRAMA,
-  INDIC_SYLLABIC_CATEGORY_VISARGA,
-  INDIC_SYLLABIC_CATEGORY_VOWEL,
-  INDIC_SYLLABIC_CATEGORY_VOWEL_DEPENDENT,
-  INDIC_SYLLABIC_CATEGORY_VOWEL_INDEPENDENT,
-};
-
-/* Categories used in IndicPositionalCategory.txt from UCD */
-enum indic_positional_category_t {
-  INDIC_POSITIONAL_CATEGORY_BOTTOM,
-  INDIC_POSITIONAL_CATEGORY_BOTTOM_AND_RIGHT,
-  INDIC_POSITIONAL_CATEGORY_LEFT,
-  INDIC_POSITIONAL_CATEGORY_LEFT_AND_RIGHT,
-  INDIC_POSITIONAL_CATEGORY_NOT_APPLICABLE,
-  INDIC_POSITIONAL_CATEGORY_OVERSTRUCK,
-  INDIC_POSITIONAL_CATEGORY_RIGHT,
-  INDIC_POSITIONAL_CATEGORY_TOP,
-  INDIC_POSITIONAL_CATEGORY_TOP_AND_BOTTOM,
-  INDIC_POSITIONAL_CATEGORY_TOP_AND_BOTTOM_AND_RIGHT,
-  INDIC_POSITIONAL_CATEGORY_TOP_AND_LEFT,
-  INDIC_POSITIONAL_CATEGORY_TOP_AND_LEFT_AND_RIGHT,
-  INDIC_POSITIONAL_CATEGORY_TOP_AND_RIGHT,
-  INDIC_POSITIONAL_CATEGORY_VISUAL_ORDER_LEFT,
-};
-
-/* Note: We use ASSERT_STATIC_EXPR_ZERO() instead of ASSERT_STATIC_EXPR() and the comma operation
- * because gcc fails to optimize the latter and fills the table in at runtime. */
-#define USE_COMBINE_CATEGORIES(S,P) \
-  (ASSERT_STATIC_EXPR_ZERO (S < 255 && P < 255) + \
-   ((P << 8) | S))
-
 HB_INTERNAL USE_TABLE_ELEMENT_TYPE
 hb_use_get_categories (hb_codepoint_t u);
 
diff --git a/src/hb-ot-shape-complex-use.cc b/src/hb-ot-shape-complex-use.cc
index d8ce4517f..b019755f6 100644
--- a/src/hb-ot-shape-complex-use.cc
+++ b/src/hb-ot-shape-complex-use.cc
@@ -120,17 +120,7 @@ static inline void
 set_use_properties (hb_glyph_info_t &info)
 {
   hb_codepoint_t u = info.codepoint;
-  unsigned int type = hb_use_get_categories (u);
-  indic_syllabic_category_t cat = (indic_syllabic_category_t) (type & 0x7Fu);
-  indic_positional_category_t pos = (indic_positional_category_t) (type >> 8);
-  use_category_t use = USE_O;
-
-  switch (cat)
-  {
-    /* TODO */
-  }
-
-  info.use_category() = use;
+  info.use_category() = hb_use_get_categories (u);
 }
 
 
@@ -147,7 +137,7 @@ setup_masks_use (const hb_ot_shape_plan_t *plan HB_UNUSED,
   unsigned int count = buffer->len;
   hb_glyph_info_t *info = buffer->info;
   for (unsigned int i = 0; i < count; i++)
-    set_use_properties (info[i]);
+    info[i].use_category() = hb_use_get_categories (info[i].codepoint);
 }
 
 static void