Initial gsub stub

[framework/uifw/harfbuzz.git] / src / hb-ot-layout-open-private.h

diff --git a/src/hb-ot-layout-open-private.h b/src/hb-ot-layout-open-private.h
index 6ee3b94..9cdb6e2 100644 (file)
--- a/src/hb-ot-layout-open-private.h
+++ b/src/hb-ot-layout-open-private.h
@@ -1,20 +1,35 @@
+/*
+ * Copyright (C) 2007,2008  Red Hat, Inc.
+ *
+ *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
+ * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Red Hat Author(s): Behdad Esfahbod
+ */
+
 #ifndef HB_OT_LAYOUT_OPEN_PRIVATE_H
 #define HB_OT_LAYOUT_OPEN_PRIVATE_H
 
 #include "hb-private.h"
 #include "hb-ot-layout.h"
 
-#include <glib.h>
-
-/* Macros to convert to/from BigEndian */
-#define hb_be_uint8_t
-#define hb_be_int8_t
-#define hb_be_uint16_t GUINT16_TO_BE
-#define hb_be_int16_t  GINT16_TO_BE
-#define hb_be_uint32_t GUINT32_TO_BE
-#define hb_be_int32_t  GINT32_TO_BE
-#define hb_be_uint64_t GUINT64_TO_BE
-#define hb_be_int64_t  GINT64_TO_BE
 
 /*
  * Int types
@@ -57,7 +72,7 @@
   DEFINE_LEN_AND_SIZE(Type, array, num)
 #define DEFINE_INDEX_OPERATOR(Type, array, num) \
   inline const Type& operator[] (unsigned int i) const { \
-    if (i >= num) return Null##Type; \
+    if (HB_UNLIKELY (i >= num)) return Null##Type; \
     return array[i]; \
   }
 
@@ -69,8 +84,8 @@
   DEFINE_LEN_AND_SIZE(Offset, array, num)
 #define DEFINE_OFFSET_INDEX_OPERATOR(Type, array, num) \
   inline const Type& operator[] (unsigned int i) const { \
-    if (i >= num) return Null##Type; \
-    if (!array[i]) return Null##Type; \
+    if (HB_UNLIKELY (i >= num)) return Null##Type; \
+    if (HB_UNLIKELY (!array[i])) return Null##Type; \
     return *(const Type *)((const char*)this + array[i]); \
   }
 
@@ -79,12 +94,12 @@
   DEFINE_LEN_AND_SIZE(Record, array, num)
 #define DEFINE_RECORD_ACCESSOR(Type, array, num) \
   inline const Type& operator[] (unsigned int i) const { \
-    if (i >= num) return Null##Type; \
-    if (!array[i].offset) return Null##Type; \
+    if (HB_UNLIKELY (i >= num)) return Null##Type; \
+    if (HB_UNLIKELY (!array[i].offset)) return Null##Type; \
     return *(const Type *)((const char*)this + array[i].offset); \
   } \
   inline const Tag& get_tag (unsigned int i) const { \
-    if (i >= num) return NullTag; \
+    if (HB_UNLIKELY (i >= num)) return NullTag; \
     return array[i].tag; \
   } \
   /* TODO: implement find_tag() */
@@ -95,7 +110,7 @@
 
 #define DEFINE_LIST_ACCESSOR(Type, name) \
   inline const Type##List& get_##name##_list (void) const { \
-    if (!name##List) return Null##Type##List; \
+    if (HB_UNLIKELY (!name##List)) return Null##Type##List; \
     return *(const Type##List *)((const char*)this + name##List); \
   } \
   inline const Type& get_##name (unsigned int i) const { \
@@ -140,7 +155,7 @@
 
 #define DEFINE_ACCESSOR(Type, name, Name) \
   inline const Type& name (void) const { \
-    if (!Name) return Null##Type; \
+    if (HB_UNLIKELY (!Name)) return Null##Type; \
     return *(const Type*)((const char*)this + Name); \
   }
 
@@ -321,6 +336,7 @@ DEFINE_NULL_ALIAS (OpenTypeFontFace, OffsetTable);
 struct TTCHeader {
   /* OpenTypeFontFaces, in no particular order */
   DEFINE_OFFSET_ARRAY_TYPE (OffsetTable, offsetTable, numFonts);
+  /* XXX check version here */
 
   private:
   Tag  ttcTag;         /* TrueType Collection ID string: 'ttcf' */
@@ -368,7 +384,7 @@ struct OpenTypeFontFile {
     }
   }
   inline const OpenTypeFontFace& operator[] (unsigned int i) const {
-    if (i >= get_len ()) return NullOpenTypeFontFace;
+    if (HB_UNLIKELY (i >= get_len ())) return NullOpenTypeFontFace;
     switch (tag) {
     default: case TrueTypeTag: case CFFTag: return (const OffsetTable&)*this;
     case TTCTag: return ((const TTCHeader&)*this)[i];
@@ -435,7 +451,7 @@ struct Script {
     return defaultLangSys != 0;
   }
   inline const LangSys& get_default_language_system (void) const {
-    if (!defaultLangSys)
+    if (HB_UNLIKELY (!defaultLangSys))
       return NullLangSys;
     return *(LangSys*)((const char*)this + defaultLangSys);
   }
@@ -557,7 +573,7 @@ struct CoverageFormat1 {
     GlyphID gid;
     gid = glyph_id;
     // TODO: bsearch
-    for (int i = 0; i < glyphCount; i++)
+    for (unsigned int i = 0; i < glyphCount; i++)
       if (gid == glyphArray[i])
         return i;
     return -1;
@@ -592,7 +608,7 @@ struct CoverageFormat2 {
 
   inline int get_coverage (uint16_t glyph_id) const {
     // TODO: bsearch
-    for (int i = 0; i < rangeCount; i++) {
+    for (unsigned int i = 0; i < rangeCount; i++) {
       int coverage = rangeRecord[i].get_coverage (glyph_id);
       if (coverage >= 0)
         return coverage;
@@ -780,6 +796,7 @@ typedef struct GSUBGPOSHeader {
   static const hb_tag_t GPOSTag                = HB_TAG ('G','P','O','S');
 
   STATIC_DEFINE_GET_FOR_DATA (GSUBGPOSHeader);
+  /* XXX check version here */
 
   DEFINE_LIST_ACCESSOR(Script, script);         /* get_script_list, get_script(i) */
   DEFINE_LIST_ACCESSOR(Feature, feature);/* get_feature_list, get_feature(i) */