#include "hb-private.hh"
+#include "hb-version.h"
+
+#include "hb-mutex-private.hh"
+#include "hb-object-private.hh"
+
+#include <locale.h>
+
HB_BEGIN_DECLS
}
+/* hb_direction_t */
+
+const char direction_strings[][4] = {
+ "ltr",
+ "rtl",
+ "ttb",
+ "btt"
+};
+
+hb_direction_t
+hb_direction_from_string (const char *str)
+{
+ if (unlikely (!str || !*str))
+ return HB_DIRECTION_INVALID;
+
+ /* Lets match loosely: just match the first letter, such that
+ * all of "ltr", "left-to-right", etc work!
+ */
+ char c = TOLOWER (str[0]);
+ for (unsigned int i = 0; i < ARRAY_LENGTH (direction_strings); i++)
+ if (c == direction_strings[i][0])
+ return (hb_direction_t) i;
+
+ return HB_DIRECTION_INVALID;
+}
+
+const char *
+hb_direction_to_string (hb_direction_t direction)
+{
+ if (likely ((unsigned int) direction < ARRAY_LENGTH (direction_strings)))
+ return direction_strings[direction];
+
+ return "invalid";
+}
+
+
/* hb_language_t */
struct _hb_language_t {
#endif
-hb_language_t
-hb_language_from_string (const char *str)
-{
- static unsigned int num_langs;
- static unsigned int num_alloced;
- static hb_language_t *langs;
- unsigned int i;
- unsigned char *p;
+struct hb_language_item_t {
- /* TODO Use a hash table or something */
+ hb_language_t lang;
- if (!str || !*str)
- return NULL;
-
- for (i = 0; i < num_langs; i++)
- if (lang_equal (str, langs[i]->s))
- return langs[i];
-
- if (unlikely (num_langs == num_alloced)) {
- unsigned int new_alloced = 2 * (8 + num_alloced);
- hb_language_t *new_langs = (hb_language_t *) realloc (langs, new_alloced * sizeof (langs[0]));
- if (!new_langs)
- return NULL;
- num_alloced = new_alloced;
- langs = new_langs;
+ inline bool operator == (const char *s) const {
+ return lang_equal (lang, s);
+ }
+
+ inline hb_language_item_t & operator = (const char *s) {
+ lang = (hb_language_t) strdup (s);
+ for (unsigned char *p = (unsigned char *) lang; *p; p++)
+ *p = canon_map[*p];
+
+ return *this;
}
- langs[i] = (hb_language_t) strdup (str);
- for (p = (unsigned char *) langs[i]->s; *p; p++)
- *p = canon_map[*p];
+ void finish (void) { free (lang); }
+};
+
+static hb_static_mutex_t langs_lock;
+static hb_lockable_set_t<hb_language_item_t, hb_static_mutex_t> langs;
+
+hb_language_t
+hb_language_from_string (const char *str)
+{
+ if (!str || !*str)
+ return HB_LANGUAGE_INVALID;
- num_langs++;
+ hb_language_item_t *item = langs.find_or_insert (str, langs_lock);
- return langs[i];
+ return likely (item) ? item->lang : HB_LANGUAGE_INVALID;
}
const char *
hb_language_to_string (hb_language_t language)
{
+ /* This is actually NULL-safe! */
return language->s;
}
+hb_language_t
+hb_language_get_default (void)
+{
+ static hb_language_t default_language;
+
+ if (!default_language) {
+ /* This block is not quite threadsafe, but is not as bad as
+ * it looks since it's idempotent. As long as pointer ops
+ * are atomic, we are safe. */
+
+ /* I hear that setlocale() doesn't honor env vars on Windows,
+ * but for now we ignore that. */
+
+ default_language = hb_language_from_string (setlocale (LC_CTYPE, NULL));
+ }
+
+ return default_language;
+}
+
/* hb_script_t */
tag = (tag & 0xDFDFDFDF) | 0x00202020;
switch (tag) {
+
+ /* These graduated from the 'Q' private-area codes, but
+ * the old code is still aliased by Unicode, and the Qaai
+ * one in use by ICU. */
+ case HB_TAG('Q','a','a','i'): return HB_SCRIPT_INHERITED;
+ case HB_TAG('Q','a','a','c'): return HB_SCRIPT_COPTIC;
+
+ /* Script variants from http://unicode.org/iso15924/ */
case HB_TAG('C','y','r','s'): return HB_SCRIPT_CYRILLIC;
- case HB_TAG('G','e','o','a'): return HB_SCRIPT_GEORGIAN;
- case HB_TAG('G','e','o','n'): return HB_SCRIPT_GEORGIAN;
case HB_TAG('L','a','t','f'): return HB_SCRIPT_LATIN;
case HB_TAG('L','a','t','g'): return HB_SCRIPT_LATIN;
case HB_TAG('S','y','r','e'): return HB_SCRIPT_SYRIAC;
}
+/* hb_user_data_array_t */
+
+
+/* NOTE: Currently we use a global lock for user_data access
+ * threadsafety. If one day we add a mutex to any object, we
+ * should switch to using that insted for these too.
+ */
+
+static hb_static_mutex_t user_data_lock;
+
+bool
+hb_user_data_array_t::set (hb_user_data_key_t *key,
+ void * data,
+ hb_destroy_func_t destroy)
+{
+ if (!key)
+ return false;
+
+ if (!data && !destroy) {
+ items.remove (key, user_data_lock);
+ return true;
+ }
+ hb_user_data_item_t item = {key, data, destroy};
+ bool ret = !!items.replace_or_insert (item, user_data_lock);
+
+ return ret;
+}
+
+void *
+hb_user_data_array_t::get (hb_user_data_key_t *key)
+{
+ hb_user_data_item_t item = {NULL };
+
+ return items.find (key, &item, user_data_lock) ? item.data : NULL;
+}
+
+void
+hb_user_data_array_t::finish (void)
+{
+ items.finish (user_data_lock);
+}
+
+
+/* hb_version */
+
+void
+hb_version (unsigned int *major,
+ unsigned int *minor,
+ unsigned int *micro)
+{
+ *major = HB_VERSION_MAJOR;
+ *minor = HB_VERSION_MINOR;
+ *micro = HB_VERSION_MICRO;
+}
+
+const char *
+hb_version_string (void)
+{
+ return HB_VERSION_STRING;
+}
+
+hb_bool_t
+hb_version_check (unsigned int major,
+ unsigned int minor,
+ unsigned int micro)
+{
+ return HB_VERSION_CHECK (major, minor, micro);
+}
+
+
HB_END_DECLS
projects / framework / uifw / harfbuzz.git / blobdiff