[pango/harfbuzz-ng: 15/57] [HB] Assorted compiler macros

[Behdad Esfahbod <behdad src gnome org>]

commit 30791d4cac4b6b1222942a9a6ca32e7ddae768b1
Author: Behdad Esfahbod <behdad behdad org>
Date:   Sat Aug 1 20:46:02 2009 -0400

    [HB] Assorted compiler macros

 pango/opentype/hb-ot-layout-open-private.h |    4 +-
 pango/opentype/hb-private.h                |   88 +++++++++++++++++++++------
 2 files changed, 70 insertions(+), 22 deletions(-)
---
diff --git a/pango/opentype/hb-ot-layout-open-private.h b/pango/opentype/hb-ot-layout-open-private.h
index 76a5ade..f46e023 100644
--- a/pango/opentype/hb-ot-layout-open-private.h
+++ b/pango/opentype/hb-ot-layout-open-private.h
@@ -215,8 +215,8 @@ struct Null <Type> \
     private: char v[BYTES]; \
   }; \
   ASSERT_SIZE (NAME, BYTES)
-#define DEFINE_INT_TYPE0(NAME, type, b)	DEFINE_INT_TYPE1 (NAME, type, hb_be_##type, b)
-#define DEFINE_INT_TYPE(NAME, u, w)	DEFINE_INT_TYPE0 (NAME, u##int##w##_t, (w / 8))
+#define DEFINE_INT_TYPE0(NAME, type, b)	DEFINE_INT_TYPE1 (NAME, type##_t, hb_be_##type, b)
+#define DEFINE_INT_TYPE(NAME, u, w)	DEFINE_INT_TYPE0 (NAME, u##int##w, (w / 8))
 
 
 DEFINE_INT_TYPE (USHORT,  u, 16);	/* 16-bit unsigned integer. */
diff --git a/pango/opentype/hb-private.h b/pango/opentype/hb-private.h
index 001aa09..2190b78 100644
--- a/pango/opentype/hb-private.h
+++ b/pango/opentype/hb-private.h
@@ -27,31 +27,29 @@
 #ifndef HB_PRIVATE_H
 #define HB_PRIVATE_H
 
-#include "hb-common.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
-
-#define HB_LIKELY	G_LIKELY
-#define HB_UNLIKELY	G_UNLIKELY
-#define HB_UNUSED(arg) ((arg) = (arg))
-#define HB_GNUC_UNUSED	G_GNUC_UNUSED
-
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
 
 #include <stdlib.h>
 #include <stdio.h> /* XXX */
 #include <string.h>
 #include <assert.h>
 
+#include "hb-common.h"
+
+#include <glib.h>
+
+/* Macros to convert to/from BigEndian */
+#define hb_be_uint8
+#define hb_be_int8
+#define hb_be_uint16	GUINT16_TO_BE
+#define hb_be_int16	GINT16_TO_BE
+#define hb_be_uint32	GUINT32_TO_BE
+#define hb_be_int32	GINT32_TO_BE
+#define hb_be_uint64	GUINT64_TO_BE
+#define hb_be_int64	GINT64_TO_BE
+
 /* Basics */
 
 #undef MIN
@@ -83,6 +81,54 @@
 #define ASSERT_SIZE(_type, _size) ASSERT_STATIC (sizeof (_type) == (_size))
 
 
+#if defined(__GNUC__) && (__GNUC__ > 2) && defined(__OPTIMIZE__)
+#define _CAIRO_BOOLEAN_EXPR(expr)                   \
+ __extension__ ({                               \
+   int _cairo_boolean_var_;                         \
+   if (expr)                                    \
+      _cairo_boolean_var_ = 1;                      \
+   else                                         \
+      _cairo_boolean_var_ = 0;                      \
+   _cairo_boolean_var_;                             \
+})
+#define HB_LIKELY(expr) (__builtin_expect (_CAIRO_BOOLEAN_EXPR(expr), 1))
+#define HB_UNLIKELY(expr) (__builtin_expect (_CAIRO_BOOLEAN_EXPR(expr), 0))
+#else
+#define HB_LIKELY(expr) (expr)
+#define HB_UNLIKELY(expr) (expr)
+#endif
+
+#ifndef __GNUC__
+#undef __attribute__
+#define __attribute__(x)
+#endif
+
+#if __GNUC__ >= 3
+#define HB_GNUC_UNUSED	__attribute__((unused))
+#define HB_GNUC_PURE	__attribute__((pure))
+#define HB_GNUC_CONST	__attribute__((const))
+#else
+#define HB_GNUC_UNUSED
+#define HB_GNUC_PURE
+#define HB_GNUC_CONST
+#endif
+
+
+#if (defined(__WIN32__) && !defined(__WINE__)) || defined(_MSC_VER)
+#define snprintf _snprintf
+#endif
+
+#ifdef _MSC_VER
+#undef inline
+#define inline __inline
+#endif
+
+#ifdef __STRICT_ANSI__
+#undef inline
+#define inline __inline__
+#endif
+
+
 /* Return the number of 1 bits in mask.
  *
  * GCC 3.4 supports a "population count" builtin, which on many targets is
@@ -90,7 +136,7 @@
  * in libgcc in case a target does not have one, which should be just as
  * good as the open-coded solution below, (which is "HACKMEM 169").
  */
-static inline unsigned int
+static HB_GNUC_UNUSED inline unsigned int
 _hb_popcount32 (uint32_t mask)
 {
 #if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
@@ -104,6 +150,8 @@ _hb_popcount32 (uint32_t mask)
 #endif
 }
 
+
+
 #include "hb-object-private.h"
 
 #endif /* HB_PRIVATE_H */