1 /* 2 * Copyright (C) 2015 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 #ifndef STRING_UTILS_H 17 #define STRING_UTILS_H 18 19 #include <iomanip> 20 #include <iostream> 21 #include <ostream> 22 #include <sstream> 23 #include <string> 24 #include <unordered_set> 25 26 #include <utils/Log.h> 27 28 namespace android { 29 namespace uirenderer { 30 31 class unordered_string_set : public std::unordered_set<std::string> { 32 public: 33 bool has(const char* str) { return find(std::string(str)) != end(); } 34 }; 35 36 class StringUtils { 37 public: 38 static unordered_string_set split(const char* spacedList); 39 }; 40 41 struct SizePrinter { 42 int bytes; 43 friend std::ostream& operator<<(std::ostream& stream, const SizePrinter& d) { 44 static const char* SUFFIXES[] = {"B", "KiB", "MiB"}; 45 size_t suffix = 0; 46 double temp = d.bytes; 47 while (temp > 1024 && suffix < 2) { 48 temp /= 1024.0; 49 suffix++; 50 } 51 stream << std::fixed << std::setprecision(2) << temp << SUFFIXES[suffix]; 52 return stream; 53 } 54 }; 55 56 class LogcatStream : public std::ostream { 57 class LogcatStreamBuf : public std::stringbuf { 58 virtual int sync() { 59 ALOGD("%s", str().c_str()); 60 str(""); 61 return 0; 62 } 63 }; 64 65 LogcatStreamBuf buffer; 66 67 public: 68 LogcatStream() : std::ostream(&buffer) {} 69 }; 70 71 } /* namespace uirenderer */ 72 } /* namespace android */ 73 74 #endif /* GLUTILS_H */ 75
