From: Behdad Esfahbod <behdad@behdad.org>
Date: Fri, 8 Oct 2010 23:43:48 +0000 (-0400)
Subject: Minor cleanup
X-Git-Tag: submit/master/20120920.151126~7^2~518
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8f08c3275040870a645ef034a38d30c05c619f21;p=framework%2Fuifw%2Fharfbuzz.git

Minor cleanup
---

diff --git a/src/hb-open-type-private.hh b/src/hb-open-type-private.hh
index b83a2e3..ea1d371 100644
--- a/src/hb-open-type-private.hh
+++ b/src/hb-open-type-private.hh
@@ -718,13 +718,9 @@ struct SortedArrayOf : ArrayOf<Type> {
   template <typename SearchType>
   inline int search (const SearchType &x) const {
     class Cmp {
-      public: static int cmp (const void *p1, const void *p2) {
-	const SearchType *a = reinterpret_cast<const SearchType *>(p1);
-	const Type *b = reinterpret_cast<const Type *>(p2);
-	return b->cmp (*a);
-      }
+      public: static int cmp (const SearchType *a, const Type *b) { return b->cmp (*a); }
     };
-    const Type *p = (const Type *) bsearch (&x, this->array, this->len, sizeof (this->array[0]), Cmp::cmp);
+    const Type *p = (const Type *) bsearch (&x, this->array, this->len, sizeof (this->array[0]), (hb_compare_func_t) Cmp::cmp);
     return p ? p - this->array : -1;
   }
 };
diff --git a/src/hb-ot-map-private.hh b/src/hb-ot-map-private.hh
index 786a0d0..2d790b0 100644
--- a/src/hb-ot-map-private.hh
+++ b/src/hb-ot-map-private.hh
@@ -43,23 +43,16 @@ static const hb_tag_t table_tags[2] = {HB_OT_TAG_GSUB, HB_OT_TAG_GPOS};
 
 struct hb_mask_allocator_t {
 
+  private:
+
   struct feature_info_t {
     hb_tag_t tag;
     unsigned int value;
     unsigned int seq;
     bool global;
 
-    static int
-    cmp (const void *p1, const void *p2)
-    {
-      const feature_info_t *a = reinterpret_cast<const feature_info_t *>(p1);
-      const feature_info_t *b = reinterpret_cast<const feature_info_t *>(p2);
-
-      if (a->tag != b->tag)
-        return a->tag < b->tag ? -1 : 1;
-
-      return a->seq < b->seq ? -1 : 1;
-    }
+    static int cmp (const feature_info_t *a, const feature_info_t *b)
+    { return (a->tag != b->tag) ?  (a->tag < b->tag ? -1 : 1) : (a->seq < b->seq ? -1 : 1); }
   };
 
   struct feature_map_t {
@@ -68,28 +61,16 @@ struct hb_mask_allocator_t {
     unsigned int shift;
     hb_mask_t mask;
 
-    static int
-    cmp (const void *p1, const void *p2)
-    {
-      const feature_map_t *a = reinterpret_cast<const feature_map_t *>(p1);
-      const feature_map_t *b = reinterpret_cast<const feature_map_t *>(p2);
-
-      return a->tag < b->tag ? -1 : a->tag > b->tag ? 1 : 0;
-    }
+    static int cmp (const feature_map_t *a, const feature_map_t *b)
+    { return a->tag < b->tag ? -1 : a->tag > b->tag ? 1 : 0; }
   };
 
   struct lookup_map_t {
     unsigned int index;
     hb_mask_t mask;
 
-    static int
-    cmp (const void *p1, const void *p2)
-    {
-      const lookup_map_t *a = reinterpret_cast<const lookup_map_t *>(p1);
-      const lookup_map_t *b = reinterpret_cast<const lookup_map_t *>(p2);
-
-      return a->index < b->index ? -1 : a->index > b->index ? 1 : 0;
-    }
+    static int cmp (const lookup_map_t *a, const lookup_map_t *b)
+    { return a->index < b->index ? -1 : a->index > b->index ? 1 : 0; }
   };
 
 
@@ -120,6 +101,7 @@ struct hb_mask_allocator_t {
 
 
 
+  public:
 
   hb_mask_allocator_t (void) : feature_count (0) {}
 
@@ -160,10 +142,8 @@ struct hb_mask_allocator_t {
     }
 
 
-    /* Sort the features so we can bsearch later */
-    qsort (feature_infos, feature_count, sizeof (feature_infos[0]), feature_info_t::cmp);
-
-    /* Remove dups, let later-occurring features override earlier ones. */
+    /* Sort features and merge duplicates */
+    qsort (feature_infos, feature_count, sizeof (feature_infos[0]), (hb_compare_func_t) feature_info_t::cmp);
     unsigned int j = 0;
     for (unsigned int i = 1; i < feature_count; i++)
       if (feature_infos[i].tag != feature_infos[j].tag)
@@ -248,9 +228,7 @@ struct hb_mask_allocator_t {
 	add_lookups (c, table_index, feature_maps[i].index[table_index], feature_maps[i].mask);
 
       /* Sort lookups and merge duplicates */
-
-      qsort (lookup_maps[table_index], lookup_count[table_index], sizeof (lookup_maps[table_index][0]), lookup_map_t::cmp);
-
+      qsort (lookup_maps[table_index], lookup_count[table_index], sizeof (lookup_maps[table_index][0]), (hb_compare_func_t) lookup_map_t::cmp);
       if (lookup_count[table_index])
       {
 	unsigned int j = 0;
@@ -268,22 +246,17 @@ struct hb_mask_allocator_t {
   hb_mask_t get_global_mask (void) { return global_mask; }
 
   hb_mask_t get_mask (hb_tag_t tag, unsigned int *shift) const {
-    const feature_map_t *map = (const feature_map_t *) bsearch (&tag, feature_maps, feature_count, sizeof (feature_maps[0]), feature_map_t::cmp);
-    if (likely (map)) {
-      if (shift) *shift = map->shift;
-      return map->mask;
-    } else {
-      if (shift) *shift = 0;
-      return 0;
-    }
+    const feature_map_t *map = (const feature_map_t *) bsearch (&tag, feature_maps, feature_count, sizeof (feature_maps[0]), (hb_compare_func_t) feature_map_t::cmp);
+    if (shift) *shift = map ? map->shift : 0;
+    return map ? map->mask : 0;
   }
 
-  void substitute (hb_ot_shape_context_t *c) const {
+  inline void substitute (hb_ot_shape_context_t *c) const {
     for (unsigned int i = 0; i < lookup_count[0]; i++)
       hb_ot_layout_substitute_lookup (c->face, c->buffer, lookup_maps[0][i].index, lookup_maps[0][i].mask);
   }
 
-  void position (hb_ot_shape_context_t *c) const {
+  inline void position (hb_ot_shape_context_t *c) const {
     for (unsigned int i = 0; i < lookup_count[1]; i++)
       hb_ot_layout_position_lookup (c->font, c->face, c->buffer, lookup_maps[1][i].index, lookup_maps[1][i].mask);
   }
diff --git a/src/hb-ot-tag.c b/src/hb-ot-tag.c
index 448f795..32d455d 100644
--- a/src/hb-ot-tag.c
+++ b/src/hb-ot-tag.c
@@ -591,10 +591,9 @@ static const LangTag ot_languages[] = {
 };
 
 static int
-lang_compare_first_component (const void *pa,
-			      const void *pb)
+lang_compare_first_component (const char *a,
+			      const char *b)
 {
-  const char *a = pa, *b = pb;
   unsigned int da, db;
   const char *p;
 
@@ -645,7 +644,7 @@ hb_ot_tag_from_language (hb_language_t language)
   /* find a language matching in the first component */
   lang_tag = bsearch (lang_str, ot_languages,
 		      ARRAY_LENGTH (ot_languages), sizeof (LangTag),
-		      lang_compare_first_component);
+		      (hb_compare_func_t) lang_compare_first_component);
 
   /* we now need to find the best language matching */
   if (lang_tag)
@@ -654,12 +653,12 @@ hb_ot_tag_from_language (hb_language_t language)
 
     /* go to the final one matching in the first component */
     while (lang_tag + 1 < ot_languages + ARRAY_LENGTH (ot_languages) &&
-	   lang_compare_first_component (lang_str, lang_tag + 1) == 0)
+	   lang_compare_first_component (lang_str, (lang_tag + 1)->language) == 0)
       lang_tag++;
 
     /* go back, find which one matches completely */
     while (lang_tag >= ot_languages &&
-	   lang_compare_first_component (lang_str, lang_tag) == 0)
+	   lang_compare_first_component (lang_str, lang_tag->language) == 0)
     {
       if (lang_matches (lang_str, lang_tag->language)) {
 	found = TRUE;
diff --git a/src/hb-private.h b/src/hb-private.h
index ad7c362..1d4cfc9 100644
--- a/src/hb-private.h
+++ b/src/hb-private.h
@@ -186,6 +186,10 @@ _hb_ctz (unsigned int number)
 #endif
 }
 
+/* Type of bsearch() / qsort() compare function */
+typedef int (*hb_compare_func_t) (const void *, const void *);
+
+
 /* We need external help for these */
 
 #ifdef HAVE_GLIB