GraphemeBreak.cpp revision 0ca4fb6d44160245ad2333851ac18a13fc553ec9 
1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16#include <benchmark/benchmark.h>
17
18#include <cutils/log.h>
19
20#include "minikin/GraphemeBreak.h"
21#include "util/UnicodeUtils.h"
22
23namespace minikin {
24
25const char* ASCII_TEST_STR = "'L' 'o' 'r' 'e' 'm' ' ' 'i' 'p' 's' 'u' 'm' '.'";
26// U+261D: WHITE UP POINTING INDEX
27// U+1F3FD: EMOJI MODIFIER FITZPATRICK TYPE-4
28const char* EMOJI_TEST_STR = "U+261D U+1F3FD U+261D U+1F3FD U+261D U+1F3FD U+261D U+1F3FD";
29// U+1F1FA: REGIONAL INDICATOR SYMBOL LETTER U
30// U+1F1F8: REGIONAL INDICATOR SYMBOL LETTER S
31const char* FLAGS_TEST_STR = "U+1F1FA U+1F1F8 U+1F1FA U+1F1F8 U+1F1FA U+1F1F8";
32
33// TODO: Migrate BENCHMARK_CAPTURE for parameterizing.
34static void BM_GraphemeBreak_Ascii(benchmark::State& state) {
35    size_t result_size;
36    uint16_t buffer[12];
37    ParseUnicode(buffer, 12, ASCII_TEST_STR, &result_size, nullptr);
38    LOG_ALWAYS_FATAL_IF(result_size != 12);
39    const size_t testIndex = state.range_x();
40    while (state.KeepRunning()) {
41        GraphemeBreak::isGraphemeBreak(buffer, 0, result_size, testIndex);
42    }
43}
44BENCHMARK(BM_GraphemeBreak_Ascii)
45    ->Arg(0)  // Begining of the text.
46    ->Arg(1)  // Middle of the text.
47    ->Arg(12);  // End of the text.
48
49static void BM_GraphemeBreak_Emoji(benchmark::State& state) {
50    size_t result_size;
51    uint16_t buffer[12];
52    ParseUnicode(buffer, 12, EMOJI_TEST_STR, &result_size, nullptr);
53    LOG_ALWAYS_FATAL_IF(result_size != 12);
54    const size_t testIndex = state.range_x();
55    while (state.KeepRunning()) {
56        GraphemeBreak::isGraphemeBreak(buffer, 0, result_size, testIndex);
57    }
58}
59BENCHMARK(BM_GraphemeBreak_Emoji)
60    ->Arg(1)  // Middle of emoji modifier sequence.
61    ->Arg(2)  // Middle of the surrogate pairs.
62    ->Arg(3);  // After emoji modifier sequence. Here is boundary of grapheme cluster.
63
64static void BM_GraphemeBreak_Emoji_Flags(benchmark::State& state) {
65    size_t result_size;
66    uint16_t buffer[12];
67    ParseUnicode(buffer, 12, FLAGS_TEST_STR, &result_size, nullptr);
68    LOG_ALWAYS_FATAL_IF(result_size != 12);
69    const size_t testIndex = state.range_x();
70    while (state.KeepRunning()) {
71        GraphemeBreak::isGraphemeBreak(buffer, 0, result_size, testIndex);
72    }
73}
74BENCHMARK(BM_GraphemeBreak_Emoji_Flags)
75    ->Arg(2)  // Middle of flag sequence.
76    ->Arg(4)  // After flag sequence. Here is boundary of grapheme cluster.
77    ->Arg(10); // Middle of 3rd flag sequence.
78
79}  // namespace minikin
80