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

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• Author : Jamie Madill
  Date : 2015-03-12 14:15:38
  Hash : 2c7c625a
  Message : Refactor D3D Debug Annotations code. This encapsultates the different implementations and allows us to compile debug.cpp in the common libraries without link errors. BUG=angleproject:513 Change-Id: I16dc4c666fb4266ee5146d64d77eb9925c7584a8 Reviewed-on: https://chromium-review.googlesource.com/256450 Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Jamie Madill <jmadill@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 "common/platform.h"
  #include "common/angleutils.h"
  
  #include <stdarg.h>
  #include <vector>
  #include <fstream>
  #include <cstdio>
  
  namespace gl
  {
  
  namespace
  {
  enum DebugTraceOutputType
  {
     DebugTraceOutputTypeNone,
     DebugTraceOutputTypeSetMarker,
     DebugTraceOutputTypeBeginEvent
  };
  
  DebugAnnotator *g_debugAnnotator = nullptr;
  
  void output(bool traceInDebugOnly, MessageType messageType, DebugTraceOutputType outputType,
              const char *format, va_list vararg)
  {
      if (DebugAnnotationsActive())
      {
          static std::vector<char> buffer(512);
          size_t len = FormatStringIntoVector(format, vararg, buffer);
          std::wstring formattedWideMessage(buffer.begin(), buffer.begin() + len);
  
          ASSERT(g_debugAnnotator != nullptr);
          switch (outputType)
          {
            case DebugTraceOutputTypeNone:
              break;
            case DebugTraceOutputTypeBeginEvent:
              g_debugAnnotator->beginEvent(formattedWideMessage);
              break;
            case DebugTraceOutputTypeSetMarker:
              g_debugAnnotator->setMarker(formattedWideMessage);
              break;
          }
      }
  
      std::string formattedMessage;
      UNUSED_TRACE_VARIABLE(formattedMessage);
  
  #if !defined(NDEBUG) && defined(_MSC_VER)
      if (messageType == MESSAGE_ERR)
      {
          if (formattedMessage.empty())
          {
              formattedMessage = FormatString(format, vararg);
          }
          OutputDebugStringA(formattedMessage.c_str());
      }
  #endif
  
  #if defined(ANGLE_ENABLE_DEBUG_TRACE)
  #if defined(NDEBUG)
      if (traceInDebugOnly)
      {
          return;
      }
  #endif // NDEBUG
      if (formattedMessage.empty())
      {
          formattedMessage = FormatString(format, vararg);
      }
  
      static std::ofstream file(TRACE_OUTPUT_FILE, std::ofstream::app);
      if (file)
      {
          file.write(formattedMessage.c_str(), formattedMessage.length());
          file.flush();
      }
  
  #if defined(ANGLE_ENABLE_DEBUG_TRACE_TO_DEBUGGER)
      OutputDebugStringA(formattedMessage.c_str());
  #endif // ANGLE_ENABLE_DEBUG_TRACE_TO_DEBUGGER
  
  #endif // ANGLE_ENABLE_DEBUG_TRACE
  }
  
  } // 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;
  }
  
  void trace(bool traceInDebugOnly, MessageType messageType, const char *format, ...)
  {
      va_list vararg;
      va_start(vararg, format);
      output(traceInDebugOnly, messageType, DebugTraceOutputTypeSetMarker, format, vararg);
      va_end(vararg);
  }
  
  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);
      output(true, MESSAGE_EVENT, DebugTraceOutputTypeBeginEvent, format, vararg);
      va_end(vararg);
  }
  
  ScopedPerfEventHelper::~ScopedPerfEventHelper()
  {
      if (DebugAnnotationsActive())
      {
          g_debugAnnotator->endEvent();
      }
  }
  
  }