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      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 
     23 namespace minikin {
     24 
     25 const 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
     28 const 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
     31 const char* FLAGS_TEST_STR = "U+1F1FA U+1F1F8 U+1F1FA U+1F1F8 U+1F1FA U+1F1F8";
     32 
     33 // TODO: Migrate BENCHMARK_CAPTURE for parameterizing.
     34 static 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(0);
     40     while (state.KeepRunning()) {
     41         GraphemeBreak::isGraphemeBreak(nullptr, buffer, 0, result_size, testIndex);
     42     }
     43 }
     44 BENCHMARK(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 
     49 static 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(0);
     55     while (state.KeepRunning()) {
     56         GraphemeBreak::isGraphemeBreak(nullptr, buffer, 0, result_size, testIndex);
     57     }
     58 }
     59 BENCHMARK(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 
     64 static 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(0);
     70     while (state.KeepRunning()) {
     71         GraphemeBreak::isGraphemeBreak(nullptr, buffer, 0, result_size, testIndex);
     72     }
     73 }
     74 BENCHMARK(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