Roll harfbuzz-ng 3b8fd9c48f4bde368bf2d465c148b9743a9216ee

third_party/harfbuzz-ng/src/hb-atomic-private.hh

 /*
- * Copyright © 2009  Red Hat, Inc.
- * Copyright © 2011  Google, Inc.
+ * Copyright © 2007  Chris Wilson
+ * Copyright © 2009,2010  Red Hat, Inc.
+ * Copyright © 2011,2012  Google, Inc.
  *
  *  This is part of HarfBuzz, a text shaping 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.
  *
+ * Contributor(s):
+ *      Chris Wilson <chris@chris-wilson.co.uk>
  * Red Hat Author(s): Behdad Esfahbod
  * Google Author(s): Behdad Esfahbod
  */
 
-#ifndef HB_GLIB_H
-#define HB_GLIB_H
+#ifndef HB_ATOMIC_PRIVATE_HH
+#define HB_ATOMIC_PRIVATE_HH
 
-#include "hb.h"
-#include <glib.h>
-
-HB_BEGIN_DECLS
+#include "hb-private.hh"
 
 
-hb_script_t
-hb_glib_script_to_script (GUnicodeScript script);
+/* atomic_int */
 
-GUnicodeScript
-hb_glib_script_from_script (hb_script_t script);
+/* We need external help for these */
+
+#if 0
 
 
-hb_unicode_funcs_t *
-hb_glib_get_unicode_funcs (void);
+#elif !defined(HB_NO_MT) && defined(_MSC_VER) && _MSC_VER >= 1600
+
+#include <intrin.h>
+typedef long hb_atomic_int_t;
+#define hb_atomic_int_add(AI, V)        _InterlockedExchangeAdd (&(AI), (V))
 
 
-HB_END_DECLS
+#elif !defined(HB_NO_MT) && defined(__APPLE__)
 
-#endif /* HB_GLIB_H */
+#include <libkern/OSAtomic.h>
+typedef int32_t hb_atomic_int_t;
+#define hb_atomic_int_add(AI, V)        (OSAtomicAdd32Barrier ((V), &(AI)) - (V))
+
+
+#elif !defined(HB_NO_MT) && defined(HAVE_GLIB)
+
+#include <glib.h>
+typedef volatile int hb_atomic_int_t;
+#if GLIB_CHECK_VERSION(2,29,5)
+#define hb_atomic_int_add(AI, V)        g_atomic_int_add (&(AI), (V))
+#else
+#define hb_atomic_int_add(AI, V)        g_atomic_int_exchange_and_add (&(AI), (V))
+#endif
+
+
+#else
+
+#define HB_ATOMIC_INT_NIL 1
+typedef volatile int hb_atomic_int_t;
+#define hb_atomic_int_add(AI, V)        (((AI) += (V)) - (V))
+
+#endif
+
+
+#endif /* HB_ATOMIC_PRIVATE_HH */