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-rw-r--r--modules/text_server_adv/text_server_adv.cpp31
1 files changed, 31 insertions, 0 deletions
diff --git a/modules/text_server_adv/text_server_adv.cpp b/modules/text_server_adv/text_server_adv.cpp
index 22652daa24..800489e5cf 100644
--- a/modules/text_server_adv/text_server_adv.cpp
+++ b/modules/text_server_adv/text_server_adv.cpp
@@ -3082,6 +3082,37 @@ int64_t TextServerAdvanced::_font_get_glyph_index(const RID &p_font_rid, int64_t
#endif
}
+int64_t TextServerAdvanced::_font_get_char_from_glyph_index(const RID &p_font_rid, int64_t p_size, int64_t p_glyph_index) const {
+ FontAdvanced *fd = font_owner.get_or_null(p_font_rid);
+ ERR_FAIL_COND_V(!fd, 0);
+
+ MutexLock lock(fd->mutex);
+ Vector2i size = _get_size(fd, p_size);
+ ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), 0);
+
+#ifdef MODULE_FREETYPE_ENABLED
+ if (fd->cache[size]->inv_glyph_map.is_empty()) {
+ FT_Face face = fd->cache[size]->face;
+ FT_UInt gindex;
+ FT_ULong charcode = FT_Get_First_Char(face, &gindex);
+ while (gindex != 0) {
+ if (charcode != 0) {
+ fd->cache[size]->inv_glyph_map[gindex] = charcode;
+ }
+ charcode = FT_Get_Next_Char(face, charcode, &gindex);
+ }
+ }
+
+ if (fd->cache[size]->inv_glyph_map.has(p_glyph_index)) {
+ return fd->cache[size]->inv_glyph_map[p_glyph_index];
+ } else {
+ return 0;
+ }
+#else
+ return p_glyph_index;
+#endif
+}
+
bool TextServerAdvanced::_font_has_char(const RID &p_font_rid, int64_t p_char) const {
FontAdvanced *fd = font_owner.get_or_null(p_font_rid);
ERR_FAIL_COND_V_MSG((p_char >= 0xd800 && p_char <= 0xdfff) || (p_char > 0x10ffff), false, "Unicode parsing error: Invalid unicode codepoint " + String::num_int64(p_char, 16) + ".");