kc3-lang/angle/src/libANGLE/Error.cpp

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• Author : Geoff Lang
  Date : 2017-11-09 16:51:11
  Hash : ee6884e7
  Message : Generate generic error messages for Error objects without messages. Makes sure that the debug output is fired for all generated errors. BUG=783054 Change-Id: Ia30870cd950c53da892554e0862276d4be5360ac Reviewed-on: https://chromium-review.googlesource.com/761760 Commit-Queue: Geoff Lang <geofflang@chromium.org> Reviewed-by: Antoine Labour <piman@chromium.org>

• src/libANGLE/Error.cpp

• //
  // Copyright (c) 2014 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.
  //
  
  // Error.cpp: Implements the egl::Error and gl::Error classes which encapsulate API errors
  // and optional error messages.
  
  #include "libANGLE/Error.h"
  
  #include "common/angleutils.h"
  #include "common/debug.h"
  #include "common/utilities.h"
  
  #include <cstdarg>
  
  namespace
  {
  std::unique_ptr<std::string> EmplaceErrorString(std::string &&message)
  {
      return message.empty() ? std::unique_ptr<std::string>()
                             : std::unique_ptr<std::string>(new std::string(std::move(message)));
  }
  }  // anonymous namespace
  
  namespace gl
  {
  
  Error::Error(GLenum errorCode, std::string &&message)
      : mCode(errorCode), mID(errorCode), mMessage(EmplaceErrorString(std::move(message)))
  {
  }
  
  Error::Error(GLenum errorCode, GLuint id, std::string &&message)
      : mCode(errorCode), mID(id), mMessage(EmplaceErrorString(std::move(message)))
  {
  }
  
  void Error::createMessageString() const
  {
      if (!mMessage)
      {
          mMessage.reset(new std::string(GetGenericErrorMessage(mCode)));
      }
  }
  
  const std::string &Error::getMessage() const
  {
      createMessageString();
      return *mMessage;
  }
  
  bool Error::operator==(const Error &other) const
  {
      if (mCode != other.mCode)
          return false;
  
      // TODO(jmadill): Compare extended error codes instead of strings.
      if ((!mMessage || !other.mMessage) && (!mMessage != !other.mMessage))
          return false;
  
      return (*mMessage == *other.mMessage);
  }
  
  bool Error::operator!=(const Error &other) const
  {
      return !(*this == other);
  }
  
  std::ostream &operator<<(std::ostream &os, const Error &err)
  {
      return gl::FmtHexShort(os, err.getCode());
  }
  
  }  // namespace gl
  
  namespace egl
  {
  
  Error::Error(EGLint errorCode, std::string &&message)
      : mCode(errorCode), mID(errorCode), mMessage(EmplaceErrorString(std::move(message)))
  {
  }
  
  Error::Error(EGLint errorCode, EGLint id, std::string &&message)
      : mCode(errorCode), mID(id), mMessage(EmplaceErrorString(std::move(message)))
  {
  }
  
  void Error::createMessageString() const
  {
      if (!mMessage)
      {
          mMessage.reset(new std::string(GetGenericErrorMessage(mCode)));
      }
  }
  
  const std::string &Error::getMessage() const
  {
      createMessageString();
      return *mMessage;
  }
  
  std::ostream &operator<<(std::ostream &os, const Error &err)
  {
      return gl::FmtHexShort(os, err.getCode());
  }
  
  }  // namespace egl