kc3-lang/angle/src/common/debug.cpp

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• Author : Yuly Novikov
  Date : 2016-12-13 12:59:39
  Hash : afcc41ce
  Message : Replace gl::trace logging with Chromium style logging Removing one usage of FormatString() and its static buffer. And preparation for Platform logging. BUG=angleproject:1660 Change-Id: I58192988ad16196706fe48d0c0ab0fd1a10c0210 Reviewed-on: https://chromium-review.googlesource.com/424173 Reviewed-by: Corentin Wallez <cwallez@chromium.org> Commit-Queue: Yuly Novikov <ynovikov@chromium.org>

• src/common/debug.cpp

• //
  // Copyright (c) 2002-2010 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  // debug.cpp: Debugging utilities.
  
  #include "common/debug.h"
  
  #include <stdarg.h>
  
  #include <array>
  #include <cstdio>
  #include <fstream>
  #include <iostream>
  #include <vector>
  
  #include "common/angleutils.h"
  #include "common/platform.h"
  #include "common/Optional.h"
  
  namespace gl
  {
  
  namespace
  {
  
  DebugAnnotator *g_debugAnnotator = nullptr;
  
  constexpr std::array<const char *, LOG_NUM_SEVERITIES> g_logSeverityNames = {
      {"EVENT", "WARN", "ERR"}};
  
  constexpr const char *LogSeverityName(int severity)
  {
      return (severity >= 0 && severity < LOG_NUM_SEVERITIES) ? g_logSeverityNames[severity]
                                                              : "UNKNOWN";
  }
  
  } // namespace
  
  bool DebugAnnotationsActive()
  {
  #if defined(ANGLE_ENABLE_DEBUG_ANNOTATIONS)
      return g_debugAnnotator != nullptr && g_debugAnnotator->getStatus();
  #else
      return false;
  #endif
  }
  
  void InitializeDebugAnnotations(DebugAnnotator *debugAnnotator)
  {
      UninitializeDebugAnnotations();
      g_debugAnnotator = debugAnnotator;
  }
  
  void UninitializeDebugAnnotations()
  {
      // Pointer is not managed.
      g_debugAnnotator = nullptr;
  }
  
  ScopedPerfEventHelper::ScopedPerfEventHelper(const char* format, ...)
  {
  #if !defined(ANGLE_ENABLE_DEBUG_TRACE)
      if (!DebugAnnotationsActive())
      {
          return;
      }
  #endif // !ANGLE_ENABLE_DEBUG_TRACE
  
      va_list vararg;
      va_start(vararg, format);
      std::vector<char> buffer(512);
      size_t len = FormatStringIntoVector(format, vararg, buffer);
      ANGLE_LOG(EVENT) << std::string(&buffer[0], len);
      va_end(vararg);
  }
  
  ScopedPerfEventHelper::~ScopedPerfEventHelper()
  {
      if (DebugAnnotationsActive())
      {
          g_debugAnnotator->endEvent();
      }
  }
  
  namespace priv
  {
  
  std::ostream &DummyStream()
  {
      return std::cout;
  }
  
  bool ShouldCreateLogMessage(LogSeverity severity)
  {
  #if defined(ANGLE_ENABLE_DEBUG_TRACE) || defined(ANGLE_ENABLE_DEBUG_ANNOTATIONS)
      return true;
  #elif defined(ANGLE_ENABLE_ASSERTS)
      return severity == LOG_ERR;
  #else
      return false;
  #endif
  }
  
  LogMessage::LogMessage(const char *function, int line, LogSeverity severity)
      : mSeverity(severity), mFunction(function), mLine(line)
  {
      init(function, line);
  }
  
  LogMessage::~LogMessage()
  {
      mStream << std::endl;
      std::string str(mStream.str());
  
      if (DebugAnnotationsActive())
      {
          std::wstring formattedWideMessage(str.begin(), str.end());
  
          switch (mSeverity)
          {
              case LOG_EVENT:
                  g_debugAnnotator->beginEvent(formattedWideMessage.c_str());
                  break;
              default:
                  g_debugAnnotator->setMarker(formattedWideMessage.c_str());
                  break;
          }
      }
  
      // Give any log message handler first dibs on the message.
      bool handled = g_debugAnnotator != nullptr &&
                     g_debugAnnotator->logMessage(mSeverity, mFunction, mLine, mMessageStart, str);
  
      if (!handled && mSeverity == LOG_ERR)
      {
          std::cerr << str;
  #if !defined(NDEBUG) && defined(_MSC_VER)
          OutputDebugStringA(str.c_str());
  #endif  // !defined(NDEBUG) && defined(_MSC_VER)
      }
  
  #if defined(ANGLE_ENABLE_DEBUG_TRACE)
  #if defined(NDEBUG)
      if (mSeverity == LOG_EVENT || mSeverity == LOG_WARN)
      {
          return;
      }
  #endif  // NDEBUG
      static std::ofstream file(TRACE_OUTPUT_FILE, std::ofstream::app);
      if (file)
      {
          file.write(str.c_str(), str.length());
          file.flush();
      }
  
  #if defined(ANGLE_ENABLE_DEBUG_TRACE_TO_DEBUGGER)
      OutputDebugStringA(str.c_str());
  #endif  // ANGLE_ENABLE_DEBUG_TRACE_TO_DEBUGGER
  
  #endif  // ANGLE_ENABLE_DEBUG_TRACE
  }
  
  // writes the common header info to the stream
  void LogMessage::init(const char *function, int line)
  {
      if (mSeverity >= 0)
          mStream << LogSeverityName(mSeverity);
      else
          mStream << "VERBOSE" << -mSeverity;
  
      mStream << ": " << function << "(" << line << "): ";
  
      mMessageStart = mStream.str().length();
  }
  
  }  // namespace priv
  
  #if defined(ANGLE_PLATFORM_WINDOWS)
  std::ostream &operator<<(std::ostream &os, const FmtHR &fmt)
  {
      os << "HRESULT: ";
      return FmtHexInt(os, fmt.mHR);
  }
  #endif  // defined(ANGLE_PLATFORM_WINDOWS)
  
  }  // namespace gl