| /* |
| * Copyright (C) 2014 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| // Definitions internal to Minikin |
| |
| #include "MinikinInternal.h" |
| #include "HbFontCache.h" |
| #include "generated/UnicodeData.h" |
| |
| #include <cutils/log.h> |
| |
| namespace android { |
| |
| Mutex gMinikinLock; |
| |
| void assertMinikinLocked() { |
| #ifdef ENABLE_RACE_DETECTION |
| LOG_ALWAYS_FATAL_IF(gMinikinLock.tryLock() == 0); |
| #endif |
| } |
| |
| bool isEmoji(uint32_t c) { |
| // U+2695 U+2640 U+2642 are not in emoji category in Unicode 9 but they are now emoji category. |
| // TODO: remove once emoji database is updated. |
| if (c == 0x2695 || c == 0x2640 || c == 0x2642) { |
| return true; |
| } |
| const size_t length = sizeof(generated::EMOJI_LIST) / sizeof(generated::EMOJI_LIST[0]); |
| return std::binary_search(generated::EMOJI_LIST, generated::EMOJI_LIST + length, c); |
| } |
| |
| // Based on Modifiers from http://www.unicode.org/L2/L2016/16011-data-file.txt |
| bool isEmojiModifier(uint32_t c) { |
| return (0x1F3FB <= c && c <= 0x1F3FF); |
| } |
| |
| // Based on Emoji_Modifier_Base from |
| // http://www.unicode.org/Public/emoji/3.0/emoji-data.txt |
| bool isEmojiBase(uint32_t c) { |
| if (0x261D <= c && c <= 0x270D) { |
| return (c == 0x261D || c == 0x26F9 || (0x270A <= c && c <= 0x270D)); |
| } else if (0x1F385 <= c && c <= 0x1F93E) { |
| return (c == 0x1F385 |
| || (0x1F3C3 <= c && c <= 0x1F3C4) |
| || (0x1F3CA <= c && c <= 0x1F3CB) |
| || (0x1F442 <= c && c <= 0x1F443) |
| || (0x1F446 <= c && c <= 0x1F450) |
| || (0x1F466 <= c && c <= 0x1F469) |
| || c == 0x1F46E |
| || (0x1F470 <= c && c <= 0x1F478) |
| || c == 0x1F47C |
| || (0x1F481 <= c && c <= 0x1F483) |
| || (0x1F485 <= c && c <= 0x1F487) |
| || c == 0x1F4AA |
| || c == 0x1F575 |
| || c == 0x1F57A |
| || c == 0x1F590 |
| || (0x1F595 <= c && c <= 0x1F596) |
| || (0x1F645 <= c && c <= 0x1F647) |
| || (0x1F64B <= c && c <= 0x1F64F) |
| || c == 0x1F6A3 |
| || (0x1F6B4 <= c && c <= 0x1F6B6) |
| || c == 0x1F6C0 |
| || (0x1F918 <= c && c <= 0x1F91E) |
| || c == 0x1F926 |
| || c == 0x1F930 |
| || (0x1F933 <= c && c <= 0x1F939) |
| || (0x1F93B <= c && c <= 0x1F93E)); |
| } else { |
| return false; |
| } |
| } |
| |
| hb_blob_t* getFontTable(MinikinFont* minikinFont, uint32_t tag) { |
| assertMinikinLocked(); |
| hb_font_t* font = getHbFontLocked(minikinFont); |
| hb_face_t* face = hb_font_get_face(font); |
| hb_blob_t* blob = hb_face_reference_table(face, tag); |
| hb_font_destroy(font); |
| return blob; |
| } |
| |
| } |