1  // Copyright 2014 Citra Emulator Project
  2  // Licensed under GPLv2 or any later version
  3  // Refer to the license.txt file included.
  4  
  5  #include <array>
  6  #include <cstdio>
  7  
  8  #ifdef _WIN32
  9  #include <windows.h>
 10  #elif defined(ANDROID)
 11  #include <android/log.h>
 12  #endif
 13  
 14  #include "common/assert.h"
 15  #include "common/logging/filter.h"
 16  #include "common/logging/log.h"
 17  #include "common/logging/log_entry.h"
 18  #include "common/logging/text_formatter.h"
 19  
 20  namespace Common::Log {
 21  
 22  std::string FormatLogMessage(const Entry& entry) {
 23      unsigned int time_seconds = static_cast<unsigned int>(entry.timestamp.count() / 1000000);
 24      unsigned int time_fractional = static_cast<unsigned int>(entry.timestamp.count() % 1000000);
 25  
 26      const char* class_name = GetLogClassName(entry.log_class);
 27      const char* level_name = GetLevelName(entry.log_level);
 28  
 29      return fmt::format("[{:4d}.{:06d}] {} <{}> {}:{}:{}: {}", time_seconds, time_fractional,
 30                         class_name, level_name, entry.filename, entry.function, entry.line_num,
 31                         entry.message);
 32  }
 33  
 34  void PrintMessage(const Entry& entry) {
 35      const auto str = FormatLogMessage(entry).append(1, '\n');
 36      fputs(str.c_str(), stderr);
 37  }
 38  
 39  void PrintColoredMessage(const Entry& entry) {
 40  #ifdef _WIN32
 41      HANDLE console_handle = GetStdHandle(STD_ERROR_HANDLE);
 42      if (console_handle == INVALID_HANDLE_VALUE) {
 43          return;
 44      }
 45  
 46      CONSOLE_SCREEN_BUFFER_INFO original_info{};
 47      GetConsoleScreenBufferInfo(console_handle, &original_info);
 48  
 49      WORD color = 0;
 50      switch (entry.log_level) {
 51      case Level::Trace: // Grey
 52          color = FOREGROUND_INTENSITY;
 53          break;
 54      case Level::Debug: // Cyan
 55          color = FOREGROUND_GREEN | FOREGROUND_BLUE;
 56          break;
 57      case Level::Info: // Bright gray
 58          color = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE;
 59          break;
 60      case Level::Warning: // Bright yellow
 61          color = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_INTENSITY;
 62          break;
 63      case Level::Error: // Bright red
 64          color = FOREGROUND_RED | FOREGROUND_INTENSITY;
 65          break;
 66      case Level::Critical: // Bright magenta
 67          color = FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_INTENSITY;
 68          break;
 69      case Level::Count:
 70          UNREACHABLE();
 71      }
 72  
 73      SetConsoleTextAttribute(console_handle, color);
 74  #else
 75  #define ESC "\x1b"
 76      const char* color = "";
 77      switch (entry.log_level) {
 78      case Level::Trace: // Grey
 79          color = ESC "[1;30m";
 80          break;
 81      case Level::Debug: // Cyan
 82          color = ESC "[0;36m";
 83          break;
 84      case Level::Info: // Bright gray
 85          color = ESC "[0;37m";
 86          break;
 87      case Level::Warning: // Bright yellow
 88          color = ESC "[1;33m";
 89          break;
 90      case Level::Error: // Bright red
 91          color = ESC "[1;31m";
 92          break;
 93      case Level::Critical: // Bright magenta
 94          color = ESC "[1;35m";
 95          break;
 96      case Level::Count:
 97          UNREACHABLE();
 98      }
 99  
100      fputs(color, stderr);
101  #endif
102  
103      PrintMessage(entry);
104  
105  #ifdef _WIN32
106      SetConsoleTextAttribute(console_handle, original_info.wAttributes);
107  #else
108      fputs(ESC "[0m", stderr);
109  #undef ESC
110  #endif
111  }
112  
113  void PrintMessageToLogcat([[maybe_unused]] const Entry& entry) {
114  #ifdef ANDROID
115      const auto str = FormatLogMessage(entry);
116  
117      android_LogPriority android_log_priority;
118      switch (entry.log_level) {
119      case Level::Trace:
120          android_log_priority = ANDROID_LOG_VERBOSE;
121          break;
122      case Level::Debug:
123          android_log_priority = ANDROID_LOG_DEBUG;
124          break;
125      case Level::Info:
126          android_log_priority = ANDROID_LOG_INFO;
127          break;
128      case Level::Warning:
129          android_log_priority = ANDROID_LOG_WARN;
130          break;
131      case Level::Error:
132          android_log_priority = ANDROID_LOG_ERROR;
133          break;
134      case Level::Critical:
135          android_log_priority = ANDROID_LOG_FATAL;
136          break;
137      case Level::Count:
138          UNREACHABLE();
139      }
140      __android_log_print(android_log_priority, "CitraNative", "%s", str.c_str());
141  #endif
142  }
143  } // namespace Common::Log