diff options
Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-0.9.8/src/hb-glib.cc')
-rw-r--r-- | Build/source/libs/harfbuzz/harfbuzz-0.9.8/src/hb-glib.cc | 384 |
1 files changed, 0 insertions, 384 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-0.9.8/src/hb-glib.cc b/Build/source/libs/harfbuzz/harfbuzz-0.9.8/src/hb-glib.cc deleted file mode 100644 index 04627587989..00000000000 --- a/Build/source/libs/harfbuzz/harfbuzz-0.9.8/src/hb-glib.cc +++ /dev/null @@ -1,384 +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-private.hh" - -#include "hb-glib.h" - -#include "hb-unicode-private.hh" - - -#if !GLIB_CHECK_VERSION(2,29,14) -static const hb_script_t -glib_script_to_script[] = -{ - HB_SCRIPT_COMMON, - HB_SCRIPT_INHERITED, - HB_SCRIPT_ARABIC, - HB_SCRIPT_ARMENIAN, - HB_SCRIPT_BENGALI, - HB_SCRIPT_BOPOMOFO, - HB_SCRIPT_CHEROKEE, - HB_SCRIPT_COPTIC, - HB_SCRIPT_CYRILLIC, - HB_SCRIPT_DESERET, - HB_SCRIPT_DEVANAGARI, - HB_SCRIPT_ETHIOPIC, - HB_SCRIPT_GEORGIAN, - HB_SCRIPT_GOTHIC, - HB_SCRIPT_GREEK, - HB_SCRIPT_GUJARATI, - HB_SCRIPT_GURMUKHI, - HB_SCRIPT_HAN, - HB_SCRIPT_HANGUL, - HB_SCRIPT_HEBREW, - HB_SCRIPT_HIRAGANA, - HB_SCRIPT_KANNADA, - HB_SCRIPT_KATAKANA, - HB_SCRIPT_KHMER, - HB_SCRIPT_LAO, - HB_SCRIPT_LATIN, - HB_SCRIPT_MALAYALAM, - HB_SCRIPT_MONGOLIAN, - HB_SCRIPT_MYANMAR, - HB_SCRIPT_OGHAM, - HB_SCRIPT_OLD_ITALIC, - HB_SCRIPT_ORIYA, - HB_SCRIPT_RUNIC, - HB_SCRIPT_SINHALA, - HB_SCRIPT_SYRIAC, - HB_SCRIPT_TAMIL, - HB_SCRIPT_TELUGU, - HB_SCRIPT_THAANA, - HB_SCRIPT_THAI, - HB_SCRIPT_TIBETAN, - HB_SCRIPT_CANADIAN_ABORIGINAL, - HB_SCRIPT_YI, - HB_SCRIPT_TAGALOG, - HB_SCRIPT_HANUNOO, - HB_SCRIPT_BUHID, - HB_SCRIPT_TAGBANWA, - - /* Unicode-4.0 additions */ - HB_SCRIPT_BRAILLE, - HB_SCRIPT_CYPRIOT, - HB_SCRIPT_LIMBU, - HB_SCRIPT_OSMANYA, - HB_SCRIPT_SHAVIAN, - HB_SCRIPT_LINEAR_B, - HB_SCRIPT_TAI_LE, - HB_SCRIPT_UGARITIC, - - /* Unicode-4.1 additions */ - HB_SCRIPT_NEW_TAI_LUE, - HB_SCRIPT_BUGINESE, - HB_SCRIPT_GLAGOLITIC, - HB_SCRIPT_TIFINAGH, - HB_SCRIPT_SYLOTI_NAGRI, - HB_SCRIPT_OLD_PERSIAN, - HB_SCRIPT_KHAROSHTHI, - - /* Unicode-5.0 additions */ - HB_SCRIPT_UNKNOWN, - HB_SCRIPT_BALINESE, - HB_SCRIPT_CUNEIFORM, - HB_SCRIPT_PHOENICIAN, - HB_SCRIPT_PHAGS_PA, - HB_SCRIPT_NKO, - - /* Unicode-5.1 additions */ - HB_SCRIPT_KAYAH_LI, - HB_SCRIPT_LEPCHA, - HB_SCRIPT_REJANG, - HB_SCRIPT_SUNDANESE, - HB_SCRIPT_SAURASHTRA, - HB_SCRIPT_CHAM, - HB_SCRIPT_OL_CHIKI, - HB_SCRIPT_VAI, - HB_SCRIPT_CARIAN, - HB_SCRIPT_LYCIAN, - HB_SCRIPT_LYDIAN, - - /* Unicode-5.2 additions */ - HB_SCRIPT_AVESTAN, - HB_SCRIPT_BAMUM, - HB_SCRIPT_EGYPTIAN_HIEROGLYPHS, - HB_SCRIPT_IMPERIAL_ARAMAIC, - HB_SCRIPT_INSCRIPTIONAL_PAHLAVI, - HB_SCRIPT_INSCRIPTIONAL_PARTHIAN, - HB_SCRIPT_JAVANESE, - HB_SCRIPT_KAITHI, - HB_SCRIPT_TAI_THAM, - HB_SCRIPT_LISU, - HB_SCRIPT_MEETEI_MAYEK, - HB_SCRIPT_OLD_SOUTH_ARABIAN, - HB_SCRIPT_OLD_TURKIC, - HB_SCRIPT_SAMARITAN, - HB_SCRIPT_TAI_VIET, - - /* Unicode-6.0 additions */ - HB_SCRIPT_BATAK, - HB_SCRIPT_BRAHMI, - HB_SCRIPT_MANDAIC, - - /* Unicode-6.1 additions */ - HB_SCRIPT_CHAKMA, - HB_SCRIPT_MEROITIC_CURSIVE, - HB_SCRIPT_MEROITIC_HIEROGLYPHS, - HB_SCRIPT_MIAO, - HB_SCRIPT_SHARADA, - HB_SCRIPT_SORA_SOMPENG, - HB_SCRIPT_TAKRI -}; -#endif - -hb_script_t -hb_glib_script_to_script (GUnicodeScript script) -{ -#if GLIB_CHECK_VERSION(2,29,14) - return (hb_script_t) g_unicode_script_to_iso15924 (script); -#else - if (likely ((unsigned int) script < ARRAY_LENGTH (glib_script_to_script))) - return glib_script_to_script[script]; - - if (unlikely (script == G_UNICODE_SCRIPT_INVALID_CODE)) - return HB_SCRIPT_INVALID; - - return HB_SCRIPT_UNKNOWN; -#endif -} - -GUnicodeScript -hb_glib_script_from_script (hb_script_t script) -{ -#if GLIB_CHECK_VERSION(2,29,14) - return g_unicode_script_from_iso15924 (script); -#else - unsigned int count = ARRAY_LENGTH (glib_script_to_script); - for (unsigned int i = 0; i < count; i++) - if (glib_script_to_script[i] == script) - return (GUnicodeScript) i; - - if (unlikely (script == HB_SCRIPT_INVALID)) - return G_UNICODE_SCRIPT_INVALID_CODE; - - return G_UNICODE_SCRIPT_UNKNOWN; -#endif -} - - -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 unsigned int -hb_glib_unicode_eastasian_width (hb_unicode_funcs_t *ufuncs HB_UNUSED, - hb_codepoint_t unicode, - void *user_data HB_UNUSED) -{ - return g_unichar_iswide (unicode) ? 2 : 1; -} - -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; -} - -static unsigned int -hb_glib_unicode_decompose_compatibility (hb_unicode_funcs_t *ufuncs, - hb_codepoint_t u, - hb_codepoint_t *decomposed, - void *user_data HB_UNUSED) -{ -#if GLIB_CHECK_VERSION(2,29,12) - return g_unichar_fully_decompose (u, TRUE, decomposed, HB_UNICODE_MAX_DECOMPOSITION_LEN); -#endif - - /* If the user doesn't have GLib >= 2.29.12 we have to perform - * a round trip to UTF-8 and the associated memory management dance. */ - gchar utf8[6]; - gchar *utf8_decomposed, *c; - gsize utf8_len, utf8_decomposed_len, i; - - /* Convert @u to UTF-8 and normalise it in NFKD mode. This performs the compatibility decomposition. */ - utf8_len = g_unichar_to_utf8 (u, utf8); - utf8_decomposed = g_utf8_normalize (utf8, utf8_len, G_NORMALIZE_NFKD); - utf8_decomposed_len = g_utf8_strlen (utf8_decomposed, -1); - - assert (utf8_decomposed_len <= HB_UNICODE_MAX_DECOMPOSITION_LEN); - - for (i = 0, c = utf8_decomposed; i < utf8_decomposed_len; i++, c = g_utf8_next_char (c)) - *decomposed++ = g_utf8_get_char (c); - - g_free (utf8_decomposed); - - return utf8_decomposed_len; -} - -hb_unicode_funcs_t * -hb_glib_get_unicode_funcs (void) -{ - static const hb_unicode_funcs_t _hb_glib_unicode_funcs = { - HB_OBJECT_HEADER_STATIC, - - NULL, /* parent */ - true, /* immutable */ - { -#define HB_UNICODE_FUNC_IMPLEMENT(name) hb_glib_unicode_##name, - HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS -#undef HB_UNICODE_FUNC_IMPLEMENT - } - }; - - return const_cast<hb_unicode_funcs_t *> (&_hb_glib_unicode_funcs); -} - |