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Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-src/src/hb-glib.cc')
-rw-r--r-- | Build/source/libs/harfbuzz/harfbuzz-src/src/hb-glib.cc | 307 |
1 files changed, 0 insertions, 307 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-glib.cc b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-glib.cc deleted file mode 100644 index f93bb8853ca..00000000000 --- a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-glib.cc +++ /dev/null @@ -1,307 +0,0 @@ -/* - * Copyright © 2009 Red Hat, Inc. - * Copyright © 2011 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. - * - * Red Hat Author(s): Behdad Esfahbod - * Google Author(s): Behdad Esfahbod - */ - -#include "hb.hh" - -#ifdef HAVE_GLIB - -#include "hb-glib.h" - -#include "hb-machinery.hh" - - -/** - * SECTION:hb-glib - * @title: hb-glib - * @short_description: GLib integration - * @include: hb-glib.h - * - * Functions for using HarfBuzz with the GLib library. - * - * HarfBuzz supports using GLib to provide Unicode data, by attaching - * GLib functions to the virtual methods in a #hb_unicode_funcs_t function - * structure. - **/ - - -/** - * hb_glib_script_to_script: - * @script: The GUnicodeScript identifier to query - * - * Fetches the #hb_script_t script that corresponds to the - * specified GUnicodeScript identifier. - * - * Return value: the #hb_script_t script found - * - * Since: 0.9.38 - **/ -hb_script_t -hb_glib_script_to_script (GUnicodeScript script) -{ - return (hb_script_t) g_unicode_script_to_iso15924 (script); -} - -/** - * hb_glib_script_from_script: - * @script: The #hb_script_t to query - * - * Fetches the GUnicodeScript identifier that corresponds to the - * specified #hb_script_t script. - * - * Return value: the GUnicodeScript identifier found - * - * Since: 0.9.38 - **/ -GUnicodeScript -hb_glib_script_from_script (hb_script_t script) -{ - return g_unicode_script_from_iso15924 (script); -} - - -static hb_unicode_combining_class_t -hb_glib_unicode_combining_class (hb_unicode_funcs_t *ufuncs HB_UNUSED, - hb_codepoint_t unicode, - void *user_data HB_UNUSED) - -{ - return (hb_unicode_combining_class_t) g_unichar_combining_class (unicode); -} - -static hb_unicode_general_category_t -hb_glib_unicode_general_category (hb_unicode_funcs_t *ufuncs HB_UNUSED, - hb_codepoint_t unicode, - void *user_data HB_UNUSED) - -{ - /* hb_unicode_general_category_t and GUnicodeType are identical */ - return (hb_unicode_general_category_t) g_unichar_type (unicode); -} - -static hb_codepoint_t -hb_glib_unicode_mirroring (hb_unicode_funcs_t *ufuncs HB_UNUSED, - hb_codepoint_t unicode, - void *user_data HB_UNUSED) -{ - g_unichar_get_mirror_char (unicode, &unicode); - return unicode; -} - -static hb_script_t -hb_glib_unicode_script (hb_unicode_funcs_t *ufuncs HB_UNUSED, - hb_codepoint_t unicode, - void *user_data HB_UNUSED) -{ - return hb_glib_script_to_script (g_unichar_get_script (unicode)); -} - -static hb_bool_t -hb_glib_unicode_compose (hb_unicode_funcs_t *ufuncs HB_UNUSED, - hb_codepoint_t a, - hb_codepoint_t b, - hb_codepoint_t *ab, - void *user_data HB_UNUSED) -{ -#if GLIB_CHECK_VERSION(2,29,12) - return g_unichar_compose (a, b, ab); -#endif - - /* We don't ifdef-out the fallback code such that compiler always - * sees it and makes sure it's compilable. */ - - gchar utf8[12]; - gchar *normalized; - int len; - hb_bool_t ret; - - len = g_unichar_to_utf8 (a, utf8); - len += g_unichar_to_utf8 (b, utf8 + len); - normalized = g_utf8_normalize (utf8, len, G_NORMALIZE_NFC); - len = g_utf8_strlen (normalized, -1); - if (unlikely (!len)) - return false; - - if (len == 1) { - *ab = g_utf8_get_char (normalized); - ret = true; - } else { - ret = false; - } - - g_free (normalized); - return ret; -} - -static hb_bool_t -hb_glib_unicode_decompose (hb_unicode_funcs_t *ufuncs HB_UNUSED, - hb_codepoint_t ab, - hb_codepoint_t *a, - hb_codepoint_t *b, - void *user_data HB_UNUSED) -{ -#if GLIB_CHECK_VERSION(2,29,12) - return g_unichar_decompose (ab, a, b); -#endif - - /* We don't ifdef-out the fallback code such that compiler always - * sees it and makes sure it's compilable. */ - - gchar utf8[6]; - gchar *normalized; - int len; - hb_bool_t ret; - - len = g_unichar_to_utf8 (ab, utf8); - normalized = g_utf8_normalize (utf8, len, G_NORMALIZE_NFD); - len = g_utf8_strlen (normalized, -1); - if (unlikely (!len)) - return false; - - if (len == 1) { - *a = g_utf8_get_char (normalized); - *b = 0; - ret = *a != ab; - } else if (len == 2) { - *a = g_utf8_get_char (normalized); - *b = g_utf8_get_char (g_utf8_next_char (normalized)); - /* Here's the ugly part: if ab decomposes to a single character and - * that character decomposes again, we have to detect that and undo - * the second part :-(. */ - gchar *recomposed = g_utf8_normalize (normalized, -1, G_NORMALIZE_NFC); - hb_codepoint_t c = g_utf8_get_char (recomposed); - if (c != ab && c != *a) { - *a = c; - *b = 0; - } - g_free (recomposed); - ret = true; - } else { - /* If decomposed to more than two characters, take the last one, - * and recompose the rest to get the first component. */ - gchar *end = g_utf8_offset_to_pointer (normalized, len - 1); - gchar *recomposed; - *b = g_utf8_get_char (end); - recomposed = g_utf8_normalize (normalized, end - normalized, G_NORMALIZE_NFC); - /* We expect that recomposed has exactly one character now. */ - *a = g_utf8_get_char (recomposed); - g_free (recomposed); - ret = true; - } - - g_free (normalized); - return ret; -} - - -#if HB_USE_ATEXIT -static void free_static_glib_funcs (); -#endif - -static struct hb_glib_unicode_funcs_lazy_loader_t : hb_unicode_funcs_lazy_loader_t<hb_glib_unicode_funcs_lazy_loader_t> -{ - static hb_unicode_funcs_t *create () - { - hb_unicode_funcs_t *funcs = hb_unicode_funcs_create (nullptr); - - hb_unicode_funcs_set_combining_class_func (funcs, hb_glib_unicode_combining_class, nullptr, nullptr); - hb_unicode_funcs_set_general_category_func (funcs, hb_glib_unicode_general_category, nullptr, nullptr); - hb_unicode_funcs_set_mirroring_func (funcs, hb_glib_unicode_mirroring, nullptr, nullptr); - hb_unicode_funcs_set_script_func (funcs, hb_glib_unicode_script, nullptr, nullptr); - hb_unicode_funcs_set_compose_func (funcs, hb_glib_unicode_compose, nullptr, nullptr); - hb_unicode_funcs_set_decompose_func (funcs, hb_glib_unicode_decompose, nullptr, nullptr); - - hb_unicode_funcs_make_immutable (funcs); - -#if HB_USE_ATEXIT - atexit (free_static_glib_funcs); -#endif - - return funcs; - } -} static_glib_funcs; - -#if HB_USE_ATEXIT -static -void free_static_glib_funcs () -{ - static_glib_funcs.free_instance (); -} -#endif - -/** - * hb_glib_get_unicode_funcs: - * - * Fetches a Unicode-functions structure that is populated - * with the appropriate GLib function for each method. - * - * Return value: (transfer none): a pointer to the #hb_unicode_funcs_t Unicode-functions structure - * - * Since: 0.9.38 - **/ -hb_unicode_funcs_t * -hb_glib_get_unicode_funcs () -{ - return static_glib_funcs.get_unconst (); -} - - - -#if GLIB_CHECK_VERSION(2,31,10) - -static void -_hb_g_bytes_unref (void *data) -{ - g_bytes_unref ((GBytes *) data); -} - -/** - * hb_glib_blob_create: - * @gbytes: the GBytes structure to work upon - * - * Creates an #hb_blob_t blob from the specified - * GBytes data structure. - * - * Return value: (transfer full): the new #hb_blob_t blob object - * - * Since: 0.9.38 - **/ -hb_blob_t * -hb_glib_blob_create (GBytes *gbytes) -{ - gsize size = 0; - gconstpointer data = g_bytes_get_data (gbytes, &size); - return hb_blob_create ((const char *) data, - size, - HB_MEMORY_MODE_READONLY, - g_bytes_ref (gbytes), - _hb_g_bytes_unref); -} -#endif - - -#endif |